Search Results — 2000 specimen records retrieved (1813 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC104487  Quercus vacciniifolia Lowell Ahart 1982-9-29 3833 Butte At the north end of Lost Creek Res. Dam, about 2 miles NW of Strawberry Valley 1100 Comment
  CAS-BOT-BC106124  Calycadenia oppositifolia Lowell Ahart 1985-5-15 4979 Butte West of Lunt Road, about 1/2 mile north of the intersection of Lunt Road and Highway 70, north of Yankee Hill 550 Comment
  CAS-BOT-BC109135  Polygonum bidwelliae Lowell Ahart 1980-5-11 2239 Butte 0.5 mile southwest of Kunkle Res. 500 Comment
  CAS-BOT-BC109136  Polygonum bidwelliae Lowell Ahart 1979-5-29 s.n. Butte 2.5 mile southeast of Paradise. Near Kunkle Creek. 500 Comment
  CAS-BOT-BC111923  Rhynchospora glomerata var. minor Lowell Ahart 1980-9-10 2618 Butte Little Bald Rock. 1100 Comment
  CAS-BOT-BC112064  Eleocharis quinqueflora Lowell Ahart 1979-5-11 s.n. Butte Peter Ahart Ranch. Honcut. 50 Comment
  CAS-BOT-BC112790  Eleocharis macrostachya Lowell Ahart 1979-6-2 s.n. Butte Peter Ahart Ranch, Honcut. 50 Comment
  CAS-BOT-BC113847  Cyperus niger var. capitatus Lowell Ahart 1982-8-19 1424 Butte Ca. 1 mi N and 3 mi E of Honcut, Peter Ahart Ranch. 50 Comment
  CAS-BOT-BC125173  Salix lasiandra var. lasiandra Lowell Ahart 1977-4-5 913 Butte South Butte, Sutter Buttes 200 Comment
  CAS-BOT-BC127334  Agrostis exarata Lowell Ahart 1977-6-16 s.n. Butte Along bands of North Honcut Creek. Peter Ahart Ranch. Honcut. 50 Comment
  CAS-BOT-BC127515  Agrostis capillaris Lowell Ahart 1988-9-4 6179 Butte On the bottom and sides of Big Kimshew Creek, about 1 air mile northeast of Jones Meadow. 1920 Comment
  CAS-BOT-BC135129  Phoradendron juniperinum Lowell Ahart 1985-9-18 5169 Butte 2 miles W of Sly Creek Res. Tree was on lava soil on a lava cap, about 2 miles W of Sly Creek reservoir. E of the intersection of Golden Trout Crossing road on Reville Ridge 1000 Comment
  CAS-BOT-BC137551  Aristida oligantha Lowell Ahart 1976-12-29 s.n. Butte Honcut. Peter Ahart Ranch. 45 Comment
  CAS-BOT-BC138412  Aira caryophyllea var. capillaris Lowell Ahart 1980-4-13 2079 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CAS-BOT-BC138422  Aira caryophyllea Lowell Ahart 1980-5-4 2165 Butte Thermalito. 65 Comment
  CAS-BOT-BC138640  Agrostis stolonifera Lowell Ahart 1987-7-3 5773 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles southeast of Jarbo Gap. 271 Comment
  CAS-BOT-BC139078  Agrostis pallens Lowell Ahart 1983-6-21 4091 Butte Along Bloomer Hill Road, about 1.25 mile west of the Oroville Quincy Highway, about 15 miles northeast of Oroville. 450 Comment
  CAS-BOT-BC145880  Avena fatua Lowell Ahart 1989-5-10 6217 Butte Near a dirt road, near Lake Oroville, about 0.1 mile northwest of the West Branch Bridge across Lake Oroville. 289 Comment
  CAS-BOT-BC146312  Aristida ternipes var. gentilis Lowell Ahart 1986-11-14 5466 Butte About 0.1 mile south of the clay burrow for Oroville Dam, 0.25 mile east of Larkin Road, about 6 miles southwest of Oroville. 36 Comment
  CAS-BOT-BC154609  Prunus subcordata Lowell Ahart 1990-3-19 6420 Butte On the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville 33 Comment
  CAS-BOT-BC162042  Agrostis Lowell Ahart 1987-6-9 5727 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles southeast of Jarbo Gap. 271 Comment
  CAS-BOT-BC167550  Polygala cornuta var. cornuta Lowell Ahart 1985-6-30 5081 Butte Along the Forbestown Ditch, about 2 1/2 miles north-east of Forbestown 868 Comment
  CAS-BOT-BC184178  Vulpia microstachys var. pauciflora Lowell Ahart 1979-5-12 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  CAS-BOT-BC184697  Vulpia myuros subsp. megalura Lowell Ahart 1980-4-19 2082 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC189899  Danthonia californica Lowell Ahart 1979-6-9 s.n. Butte 2 miles southeast of paradise. 500 Comment
  CAS-BOT-BC190169  Crypsis vaginiflora Lowell Ahart 1982-7-10 3673 Butte Sierra Nevada. Ca. 0.25 mile southeast of the Gray Lodge Headquarters, ca. 13 miles southwest of Gridley. 35 Comment
  CAS-BOT-BC19419  Carex bolanderi Lowell Ahart 1988-7-31 6146 Butte About 4 road miles north of Stirling City. On the east side of the West Branch of the Feather River. 914 Comment
  CAS-BOT-BC201738  Deschampsia elongata Lowell Ahart 1980-9-10 2639 Butte 5 miles east of Milsap Bar 1200 Comment
  CAS-BOT-BC202420  Euphorbia ocellata Lowell Ahart 1989-5-23 6256 Butte Along the edges of Avocado Road, about 1/2 mile west of the Oroville Bangor Highway, about 1 mile north-west of Bangor 213 Comment
  CAS-BOT-BC213283  Lathyrus sulphureus Lowell Ahart 1980-4-21 2100 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC213345  Lathyrus jepsonii subsp. californicus Lowell Ahart 1987-4-30 5488 Butte On the banks of North Honcut Creek, about 2 1/2 miles north and 3 miles east of Honcut, about 12 miles southeast of Oroville 67 Comment
  CAS-BOT-BC21747  Achillea millefolium Lowell Ahart 1989-5-28 6299 Butte South of Oregon Gulch Road, 335 Comment
  CAS-BOT-BC221939  Taeniatherum caput-medusae Lowell Ahart 1977-6-2 1504 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC227299  Elymus elymoides Lowell Ahart 1985-6-30 5091 Butte 100 yards south of the road to the Forbestown Res., south of the Forbestown Ditch, about 2 1/2 miles north-east of Forbestown 883 Comment
  CAS-BOT-BC22967  Agoseris heterophylla Lowell Ahart 1987-5-12 5636 Butte South of Lumpkin Ridge Road, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls 1280 Comment
  CAS-BOT-BC234617  Symphoricarpos mollis Lowell Ahart 1985-5-22 5026 Butte About 1/2 mile east of Little Bald Rock 1066 Comment
  CAS-BOT-BC236365  Poa secunda subsp. secunda Lowell Ahart 1985-5-15 4996 Butte 1/8 mile E of the dirt road, about 1.5 miles NE of Concow Res. 800 Comment
  CAS-BOT-BC240118  Setaria pumila Lowell Ahart 1974-11-9 s.n. Butte Peter Ahart Ranch, Honcut 45 Comment
  CAS-BOT-BC254921  Poa bulbosa Lowell Ahart 1987-5-6 5561 Butte Along the road, at the Poe Power House along the North Fork of the Feather RIver, about 2 miles SE of Jarbo Gap 283 Comment
  CAS-BOT-BC260532  Muhlenbergia filiformis Lowell Ahart 1983-8-16 4305 Butte 3 miles S of Butte Meadows, near Bull Hill Road 1600 Comment
  CAS-BOT-BC262344  Eriogonum vimineum Lowell Ahart 1983-7-24 4205 Butte At the Forbestown Res., about 5 miles north-east of Forbestown 450 Comment
  CAS-BOT-BC264287  Muhlenbergia andina Lowell Ahart 1988-7-31 6147 Butte On the east side of the West Branch of the Feather River, north of the bridge, about 4 road miles north of Stirling City 914 Comment
  CAS-BOT-BC274012  Leptochloa fusca subsp. uninervia Lowell Ahart 1986-11-14 5480 Butte About 1/10 mile south of the clay burrow for Oroville Dam, 1/4 mile east of Larkin Road, about 6 miles south-west of Oroville 36 Comment
  CAS-BOT-BC274228  Rostraria cristata Lowell Ahart 1977-5-21 1511 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC281251  Hordeum brachyantherum subsp. brachyantherum Lowell Ahart 1988-6-21 6059 Butte Near the Poe Power House Road, about 1 mile south of Jarbo Gap 609 Comment
  CAS-BOT-BC295951  Erigeron philadelphicus Lowell Ahart 1987-6-9 5741 Butte On the west side of the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  CAS-BOT-BC341783  Lessingia nemaclada Lowell Ahart 1983-6-30 4179 Butte About 1 1/2 miles north-east of Concow Res. 550 Comment
  CAS-BOT-BC40502  Caulanthus lasiophyllus Lowell Ahart 1982-5-29 3445 Butte Peter Ahart Ranch, about 1.5 miles north and 2.25 miles east of Honcut. 50 Comment
  CAS-BOT-BC410220  Hypericum concinnum Lowell Ahart 1983-6-21 4059 Butte Along Bloomer Hill Road, 1/8 mile west of the Oroville Quincy highway, 1 1/4 miles south of the Berry Creek School, north-east of Oroville. Section 5. 400 Comment
  CAS-BOT-BC429039  Micranthes nidifica Lowell Ahart 1983-3-27 3905 Butte Peter Ahart Ranch, about 2 1/2 miles north and 1/2 mile east of Honcut 35 Comment
  CAS-BOT-BC48064  Styrax redivivus Lowell Ahart 1989-5-29 6309 Butte along the edge of the gravel road to the Forbestown Reservoir, about 1 mile north-east of Forbestown Road, 822 Comment
  CAS-BOT-BC61879  Isoetes nuttallii Lowell Ahart 1975-5-3 s.n. Butte Valley Grassland, Peter Ahart Ranch, Honcut Comment
  CAS-BOT-BC72300  Polystichum imbricans subsp. imbricans Lowell Ahart 1983-7-24 4213 Butte on the road cutbank at the Forbestown Res., about 5 miles northeast of Forbestown 450 Comment
  CAS-BOT-BC7777  Carex laeviculmis Lowell Ahart 1984-7-19 4746 Butte about 1 1/2 miles south-east of Bald Mountain, 3/4 mile west of Oak Point, about 4 miles north-east of Stirling City, CA 1500 Comment
  CAS-BOT-BC81373  Torreya californica Lowell Ahart 1980-10-26 2688 Butte Near the Forbestown Res., Forbestown 400 Comment
  CAS-BOT-BC88807  Lepidium campestre Lowell Ahart 1987-5-6 5514 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles southeast of Jarbo Gap. 271 Comment
  CAS-BOT-BC98010  Baccharis pilularis Lowell Ahart 1986-10-16 5403 Butte about 1 mile south-west of the Ponderosa Dam, about 3 miles north-west of Forbestown 457 Comment
  CDA21944  Quercus kelloggii L. Ahart 1999-6-12 8084 Butte Above the rim of the south branch of Coal Canyon, North Table Mountain, about one mile (air) northwest of the entrance gates along the west side of Cherokee Road, about 7 miles (air) north of Oroville. Comment
  CDA2244  Lolium perenne L. Ahart 2002-6-2 9675 Butte East of the large exposed drain pipe, road cut on the south side of Lumpkin Road, about 1 mile northeast of the intersection of Lumpkin Road and Forbestown Road, about 12 miles (air) east of Oroville. Comment
  CDA22913  Melica aristata L. Ahart 2006-6-9 12648 Butte On the west side of Bardees Bar Road, south of the small stream, about 1/4 of a mile southwest of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga. Comment
  CDA24035  Dianthus armeria subsp. armeria L. Ahart 2004-7-11 11223 Butte On the southeast edge of Paradise Lake, about 3/4 mile northeast of the picnic area, about 1 mile northeast of Paradise Dam, about 4 miles (air) southwest of Stirling City. Comment
  CDA25096  Planodes virginica L. Ahart 2003-5-9 10123 Butte North side of Evans Reimer Road, about 3/4 mile west of Block Road, about 3 miles (air) southwest of Gridley. Comment
  CDA26269  Rosa californica L. Ahart 2002-6-2 9680 Butte On the north side of Black Bart Road, about 1 1/2 miles east of the intersection of Forbestown Road and Black Bart Road, about 12 miles (air) southeast of Oroville. Comment
  CDA26286  Rosa woodsii var. ultramontana L. Ahart 2005-7-13 12144 Butte About 20 yards south of the intersection of Forbestown Road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown, about 12 miles (air) east of Oroville. Comment
  CDA30217  Juncus usitatus L. Ahart 2009-7-4 15999 Butte On the side of a large shalow pond, on the west side of the gravel road, about 100 yards south of parking lot 3, Gray Lodge Watefowl Management Area, about 6 miles (air) southwest of Gridley Comment
  CDA31935  Bromus catharticus L. Ahart 2009-5-8 15666 Butte On the south side of the gravel road, about 10 yards east of Cedar Grove Parking Area in Lower Bidwell Park, Chico. Comment
  CDA31969  Polygonum arenastrum L. Ahart 2009-6-12 15846 Butte At the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CDA31994  Silene gallica L. Ahart 2008-5-12 15690 Butte On the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. Comment
  CDA31996  Centaurea melitensis L. Ahart 2008-5-23 15769 Butte On the sides of Guardians Trail, about 200 yards southwest of Pine Trail, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico Comment
  CDA32014  Paspalum dilatatum L. Ahart 2009-7-3 15993 Butte 10 yards north of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CDA34643  Spergularia bocconi L. Ahart 2009-7-3 15986 Butte ON the north side of road, 30 yards west of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 30 yards east of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CDA34697  Lepidium strictum L. Ahart 2010-4-5 16573 Butte Vacant lot, about 50 feet west of Virginia Street, about 20 feet south of Spruce Street in Gridley. Comment
  CDA34740  Danthonia californica var. americana L. Ahart 2010-9-21 17230 Butte On the north side of a poor dirt road, about 1 mile (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. Comment
  CDA41857  Penstemon laetus subsp. leptosepalus L. Ahart 2004-6-22 11122 Butte On the west side of Doe Mill Road, about 1 mile southeast of the bridge across Butte Creek, about 2 1/2 miles (air) southeast of Forest Ranch, about 5 miles (air) southwest of Stirling City. Comment
  CDA42766  Trifolium glomeratum L. Ahart 2011-5-1 17342 Butte North side of the intersection of Georgia Pacific Way and Feather River Blvd, about 100 yards east of Highway 70, about 1 mile south of Oroville. Comment
  CDA42840  Linum bienne L. Ahart 2011-6-5 17365 Butte On the west edge of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. Comment
  CDA42853  Trifolium oliganthum L. Ahart 2012-4-3 17938 Butte On both sides of Guardian Trail, about 400 yards north of Humboldt Trail, north of Bloody Pin Trail, about 1/8 mile west of Highway 32, about 8 miles northeast of Chico, south part of Upper Bidwell Park. Comment
  CDA42945  Salsola tragus L. Ahart 2012-10-28 18517 Butte East edge of Highway 70, about 1/4 mile south of Cottonwood Road, about 3 miles north of Oroville. Comment
  CDA5727  Juncus bufonius var. bufonius L. Ahart 2005-4-14 11719 Butte About 200 feet east of the railroad tracks, north of Spruce Street, Gridley. Comment
  CDA6216  Draba verna var. aestivalis L. Ahart 2004-3-26 10705 Butte Hurleton Road, north of Forbestown Road, about 1/4 mile north of the Oak Grove Cemetery, about 2 miles southeast of Lake Wyandotte, about 10 miles east of Oroville. Comment
  CDA8196  Lessingia nemaclada L. Ahart 2006-9-13 13331 Butte On both sides of Highway 70, at the Cresta Power House, about 2 3/4 miles northeast of Pulga, about 23 miles (air) northeast of Oroville. Comment
  CHSC100467  Eriobotrya japonica Lowell Ahart; John Dittes, Josephine Guardino 2008-11-8 15419 Butte On the west side of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  CHSC100489  Juncus patens Lowell Ahart; John Dittes, Josephine Guardino 2008-11-8 15418 Butte In the center of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  CHSC100503  Cupressus sempervirens Lowell Ahart; John Dittes, Josephine Guardino 2008-11-8 15417 Butte In the center of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  CHSC100523  Eragrostis pectinacea var. pectinacea Lowell Ahart 2008-11-4 15405 Butte On the east edge of the paved road, about 100 yards south of the entrance to the large parking area on the north end of Oroville Dam, about 4 miles (air) northeast of Oroville. 273 Comment
  CHSC101082  Lepidium nitidum var. nitidum Lowell Ahart; John Dittes 2009-3-20 15506 Butte Open area west of the Guardian Rock Trail, about 175 yards southwest of the Ten Mile House Road Trail, about 300 yards west of Highway 32, west of the intersection of Highway 32 and Ten Mile House Road, Upper Bidwell Park, about 10 miles northeast of Chico. 407 Comment
  CHSC101159  Carex nudata Lowell Ahart 2009-5-15 15708 Butte On the east bank of Big Chico Creek, on the west side of the dirt road which isTen Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 234 Comment
  CHSC101166  Ranunculus muricatus Lowell Ahart 2009-5-15 15698 Butte About 60 yards northwest of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 2/3 mile (air) west of Highway 32, about 10 miles northeast of Chico. 267 Comment
  CHSC101263  Matricaria discoidea Lowell Ahart 2009-4-3 15524 Butte Along margins of the gravel road, east of the Cedar Grove parking area in Lower Bidwell Park, Chico. 67 Comment
  CHSC101276  Taraxacum officinale Lowell Ahart 2009-4-3 15522 Butte On the east side and along margins of the gravel road, east of the Cedar Grove parking area in Lower Bidwell Park, Chico. 67 Comment
  CHSC101284  Senecio vulgaris Lowell Ahart 2009-4-17 15539 Butte South slope of a ridge, about 150 yards west of Highway 32, near the south boundary, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 373 Comment
  CHSC101299  Plectritis ciliosa subsp. insignis Lowell Ahart 2009-4-22 15604 -A Butte South side of Guardians Trail, south of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  CHSC101305  Quercus berberidifolia Lowell Ahart 2009-4-22 15577 Butte West side of Guardians Trail, about 100 yards north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  CHSC101325  Hesperevax acaulis var. robustior Lowell Ahart 2009-4-22 15587 Butte West side of Guardians Trail, about 100 yards north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  CHSC101336  Toxicodendron diversilobum Lowell Ahart 2009-4-22 15565 Butte West side of Guardians Trail, about 50 yards north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  CHSC101662  Ceanothus integerrimus Lowell Ahart 2009-4-26 15640 Butte On the west side of Guardians Trail, about 100 yards north of Pine Trail, Upper Bidwell Park, about 3/8 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  CHSC101754  Heuchera micrantha var. erubescens Lowell Ahart 2009-5-23 15738 Butte On the east bank of Big Chico Creek, on the west side of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 234 Comment
  CHSC101812  Medicago lupulina Lowell Ahart 2009-6-12 15842 Butte 10 yards north of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  CHSC102169  Salix laevigata Lowell Ahart 2009-6-19 15941 Butte On dry soil, open area north pond and table, about 50 yards south of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 232 Comment
  CHSC102170  Centaurium muehlenbergii Lowell Ahart 2009-6-30 15977 Butte On dry soil, along a small flowing stream, meadow, about 55 yards southeast of the gate, about 45 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway32, about 10 miles northeast of Chico. 269 Comment
  CHSC102171  Elymus glaucus subsp. glaucus Lowell Ahart 2009-5-30 15793 Butte On dry soil, about 50 yards south of the fence and about 120 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway32, about 10 miles northeast of Chico. 269 Comment
  CHSC102403  Mimulus moschatus Lowell Ahart 2009-6-30 15978 Butte About 55 yards southeast of the gate, about 45 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 269 Comment
  CHSC102423  Polygala cornuta var. cornuta Lowell Ahart 2009-5-30 15776 Butte On dry soil, on the south side of Ten Mile House Road, Upper Bidwell Park, about 3/8 mile (air) west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 369 Comment
  CHSC102512  Monardella sheltonii Lowell Ahart 2009-5-30 15982 Butte Open area west of the Guardian Rock Trail, about 60 yards north of Pine Trail, about 3/8 mile (air) southwest of the intersection of Ten Mile House Road and Highway 32, Upper Bidwell Park, about 10 miles northeast of Chico. 398 Comment
  CHSC102623  Juncus tenuis Lowell Ahart 2009-6-18 15910 Butte On the banks of a small wash, about 60 yards west of the dredger piles along North Honcutt Creek, about 2 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles southeast of Oroville. 59 Comment
  CHSC102797  Cichorium intybus Lowell Ahart 2009-6-19 15917 Butte On the north side of Ten Mile House Road, just east of the Guardians Trail, Upper Bidwell Park, about 1/4 mile west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  CHSC102828  Lychnis coronaria Lowell Ahart 2009-6-19 15935 Butte Along trail, onn the east side of Big Chico Creek, about 50 yards west ofTen Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 203 Comment
  CHSC102837  Carex densa Lowell Ahart 2009-6-3 15816 Butte About 100 yards west of the table at the old homestead and southwest of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 239 Comment
  CHSC102848  Convolvulus arvensis Lowell Ahart 2009-5-30 15787 Butte About 50 yards south of the fence and about 100 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 269 Comment
  CHSC102962  Typha angustifolia Lowell Ahart 2009-7-9 16007 Butte On the east side of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 236 Comment
  CHSC102975  Lycium barbarum Lowell Ahart 2009-7-4 16000 Butte Under the palm trees, at parking lot 2, Gray Lodge Waterfowl Management Area, about 6 miles (air) southwest of Gridley. 22 Comment
  CHSC103112  Toxicodendron diversilobum Lowell Ahart 2009-8-23 16289 Butte Near a small seep, at the base of a large rock, northwest of a small broad open drainage in oak woodland, about 150 yards northwest of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) west of Highway 32, about 10 miles northeast of Chico. 266 Comment
  CHSC103167  Cotoneaster lacteus Lowell Ahart 2009-11-19 16562 Butte On the south side of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 311 Comment
  CHSC103424  Erigeron canadensis Lowell Ahart 2009-11-19 16555 Butte On the west side of the trail, north side of the pond, about 30 yards northwest of the table, 100 yards south of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) west of Highway 32, about 10 miles northeast of Chico. 239 Comment
  CHSC103678  Lathyrus angulatus Lowell Ahart 2010-5-5 16607 Butte Parking area east of McCabe Creek, a few feet below the high water line of Lake Oroville. About 11 miles (air) northeast of Oroville. 263 Comment
  CHSC103718  Psilocarphus brevissimus var. brevissimus Lowell Ahart 2010-5-14 16649 Butte On the west side of the old Humboldt Road, Disc Golf Area, about 150 yards west of the entrance to the Disc Golf Area, about 40 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 395 Comment
  CHSC103731  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2010-5-16 16678 Butte About 1/4 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 378 Comment
  CHSC103750  Chorizanthe polygonoides var. polygonoides Lowell Ahart 2010-5-16 16705 Butte About 100 yards west of the fence, about 1/2 mile southeast of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 381 Comment
  CHSC103751  Cerastium glomeratum Lowell Ahart 2010-5-22 16723 Butte North of the road, about 100 yards west of the fence, about 1/4 mile east of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 387 Comment
  CHSC103982  Poa secunda subsp. secunda Lowell Ahart 2010-5-14 16675 Butte On the south side of the Guardian Trail, about 1/8 mile west of Highway 32, Upper Bidwell Park, about 5 miles (air) northweat of Chico. 301 Comment
  CHSC103998  Centaurea melitensis Lowell Ahart 2010-6-20 16835 Butte About 3/8 mile north of Cox Lane, about 1 1/2 miles east of Palermo Honcut Highway, Guidci Ranch, about 7 1/2 miles (air) southeast of Oroville. 55 Comment
  CHSC104002  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2010-6-20 16823 Butte Large vernal pool, about 1/4 mile north of Cox Lane, about 1 1/2 miles east of Palermo Honcut Highway, Guidci Ranch, about 7 1/2 miles (air) southeast of Oroville. 59 Comment
  CHSC104809  Carex Lowell Ahart 2010-4-23 16579 Butte Lawn of home #1082, near the middle of and north side of E7th Street, between Sycamore Street and Linden Street, Chico. 63 Comment
  CHSC104829  Allium vineale Lowell Ahart 2010-6-6 16770 Butte Peter Ahart Ranch, about 1 3/4 miles north and 1 1/4 mile east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC104849  Zeltnera venusta Lowell Ahart 2010-6-9 16781 Butte About 50 yards south of the poor dirt road, about 120 yards east of the fence, about 170 yards east of where you park, southeast of Cherokee Road, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 393 Comment
  CHSC105266  Marsilea vestita subsp. vestita Lowell Ahart 2010-6-20 16821 Butte About 1/4 mile north of Cox Lane, about 1 1/2 miles east of Palermo Honcut Highway, Guidci Ranch, about 7 1/2 miles (air) southeast of Oroville. 59 Comment
  CHSC105273  Diplacus tricolor Lowell Ahart 2010-6-20 16820 Butte About 1/4 mile north of Cox Lane, about 1 1/2 miles east of Palermo Honcut Highway, Guidci Ranch, about 7 1/2 miles (air) southeast of Oroville. 59 Comment
  CHSC105789  Artemisia douglasiana Lowell Ahart 2010-9-13 17153 Butte Open dry areas, Oroville Wildlife Area, about 1/2 mile west of Pacific Heights Road, about 3 1/2 miles (air) northwest of Palermo. 31 Comment
  CHSC105815  Carex integra Lowell Ahart 2010-9-21 17218 Butte Open meadow like area, near a poor camp, 30 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1917 Comment
  CHSC105834  Carex mariposana Lowell Ahart 2010-7-27 16928 Butte High bank on the west side of the South Fork of the Feather River, east of Forest Road 22N68, about 1/4 mile southwest of the Feather Fork Mine, about 1-1/2 miles (air) northeast of Little Grass Valley Reservoir 1565 Comment
  CHSC10594  Gilia tricolor Lowell Ahart 1967-4-11 Butte Peter Ahart Ranch, Honcut. 42 Comment
  CHSC105955  Eleusine indica Lowell Ahart 2010-9-24 17240 Butte Near the north edge of the Golf Course, about 200 yards northeast of the footbridge, about 250 yards northeast of the Golf Club House, about 50 yards south of Big Chico Creek, Bidwell Park. 99 Comment
  CHSC106057  Punica granatum Lowell Ahart; Susan Mason, Josephine Guardino 2010-8-6 17043 Butte In landscaping, at Five Mile Recreation Area, Bidwell Park, Chico. 74 Comment
  CHSC106343  Crypsis schoenoides Lowell Ahart; John Dittes 2010-8-30 17070 Butte About 150 yards west of the fence, south edge of the meadow, Ash Creek State Wildlife Area, 2,300 feet north of Lassen County Line, about 3.6 miles (air) west of Adin, about 8.0 miles (air) northeast of Bieber, Big Valley. 1267 Comment
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Oct 5 2019
  CHSC10681  Iris macrosiphon Lowell Ahart 1967-4-12 Butte Near Bidwell Bar. 152 Comment
  CHSC106878  Plantago virginica Lowell Ahart 2011-5-10 17355 Butte Southeast of the tower, Peter Ahart Ranch, about 2 miles north and 2 1/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 48 Comment
  CHSC10693  Penstemon breviflorus subsp. glabrisepalus Lowell Ahart 1969-5-15 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC10718  Trifolium depauperatum var. depauperatum Lowell Ahart 1970-4-20 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC107573  Melilotus indicus Lowell Ahart 2011-8-17 17620 Butte On the east side of Big Chico Creek, southwest of the meadow, about 30 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 miles (air) southwest of the inteaction of Highwy 32 and Ten Mile House Road, about 10 miles northeast of Chico. 209 Comment
  CHSC107591  Achnatherum stillmanii Lowell Ahart 2011-7-9 17568 Butte North of a large open bare granite area, about 1/4 mile east of Little Bald Rock, about 2 miles (air) southeast of Brush creek, about 15 miles (air) northeast of Oroville. 975 Comment
  CHSC10791  Philadelphus lewisii Lowell Ahart 1966-5-22 Butte Near Paradise. 91 Comment
  CHSC108123  Persicaria punctata Lowell Ahart 2011-10-29 17724 Butte On the bare sides of a ditch, on the south side of Biggs Princeton Road, about 500 yards west of Riceton Highway, about 1 mile northwest of Biggs. 27 Comment
  CHSC108132  Cyperus erythrorhizos Lowell Ahart 2011-10-29 17730 Butte On the bare sides of a ditch, on the south side of Biggs Princeton Road, about 500 yards west of Riceton Highway, about 1 mile northwest of Biggs. 27 Comment
  CHSC108143  Vicia sativa subsp. sativa Lowell Ahart 2011-10-29 17731 -A Butte On the bare sides of a ditch, on the south side of Biggs Princeton Road, about 500 yards west of Riceton Highway, about 1 mile northwest of Biggs. 27 Comment
  CHSC10820  Sidalcea diploscypha Lowell Ahart 1972-5-20 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC10822  Dodecatheon clevelandii subsp. patulum Lowell Ahart 1968-3-11 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC108320  Persicaria lapathifolia Lowell Ahart 2011-8-17 17628 Butte Aboout 10 yards north of the trail, north of the crossing and on the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Prk, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 203 Comment
  CHSC108321  Juncus covillei Lowell Ahart 2011-8-19 17640 Butte On the north side ofa good forest road and in the west gutter of a secondary road, about 1/2 mile north of the Lost Creek Reservoir Dam, about 4-1/2 miles (air) north of Clipper Mills. 1266 Comment
  CHSC10851  Erythranthe guttata Lowell Ahart 1966-5-7 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC108819  Viola odorata Lowell Ahart; John Dittes, Josephine Guardino 2012-4-6 17811 Butte On the north side of Big Chico Creek, Lost Park in Bidwell Park, city of Chico. 60 Comment
  CHSC108959  Prunus cerasifera Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17852 Butte Just east of the Deer Pen, near Table 10, Lower Bidwell Park, Chico. 65 Comment
  CHSC108966  Salix gooddingii Lowell Ahart 2012-4-3 17803 Butte North bank of North Honcut Creek, Peter Ahart Ranch, about 1-1/4 miles north and 2-3/4 miles east of Honcut, about 12 miles southeast of Oroville. 38 Comment
  CHSC108973  Oxalis corniculata Lowell Ahart; John Dittes, Josephine Guardino 2012-4-6 17812 Butte On the north side of Big Chico creek, Lost Park in Bidwell Park, city of Chico. 60 Comment
  CHSC108990  Sisymbrium officinale Lowell Ahart 2012-4-30 17933 Butte On the sides of Bloody Pin Trail, about 100 yards west of Guardian Trail, about 1/2 mile west of Highway 32, about 7 1/2 miles northeast of Chico, south part of Upper Bidwell Park. 317 Comment
  CHSC109089  Phacelia egena Lowell Ahart 2012-4-20 17891 Butte Around a large rock outcrop, about 200 yards east of Big Chico Creek, about 200 yards west of Ten Mile House Road, west and north of the old homestead, about 3/4 mile west of Highway 32, about 9 miles (air) northeast of Chico, south part of Upper Bidwell Park. 215 Comment
  CHSC109094  Morus alba Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17860 Butte On the south side of Big Chico Creek, east of the Deer Pen, south of Tables 11 , Lower Bidwell Park, Chico. 65 Comment
  CHSC109123  Montia fontana subsp. amporitana Lowell Ahart 2012-3-23 17792 Butte On a large rock outcrop, about 200 yards east of Big Chico Creek, about 200 yards west of Ten Mile House Road, below and north of the old homestead, about 3/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. 215 Comment
  CHSC109152  Sonchus asper subsp. asper Lowell Ahart 2012-5-14 18051 Butte Along the edges of the paved path, east side of the Deer Pen, between Tables 9 and 10, Lower Bidwell Park, Chico. 71 Comment
  CHSC109605  Ptelea crenulata Lowell Ahart 2012-5-20 18094 Butte About 10 yards east of the Guardian Trail, southeast part of Upper Bidwell Park, northeast of Chico. 356 Comment
  CHSC109625  Festuca myuros Lowell Ahart 2012-6-17 18081 Butte On the north side of Big Chico Creek, southeast of Table 21, south of the paved park road, northeast of the Deer Pen, Lower Bidwell Park, Chico. 73 Comment
  CHSC109669  Drymocallis glandulosa var. glandulosa Lowell Ahart 2012-6-28 18241 Butte On the north side of Big Chico Creek, east of Sycamore Pool, Lower Bidwell Park, Chico. 61 Comment
  CHSC109670  Melilotus albus Lowell Ahart 2012-6-28 18243 Butte On the north side of Big Chico Creek, east of Sycamore Pool, Lower Bidwell Park, Chico. 61 Comment
  CHSC109671  Celtis occidentalis Lowell Ahart; Susan Bazell, Josephine Guardino, Wes Dempsey 2012-7-5 18271 Butte Path in Cedar Grove, west of the parking area, Lower Bidwell Park, Chlico. 71 Comment
  CHSC109747  Cyperus flavescens Lowell Ahart 2012-10-20 18503 Butte Soil and gravel bar on the south side of Big Chico Creek, about 100 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. 68 Comment
  CHSC109758  Chenopodium album Lowell Ahart 2012-10-20 18508 Butte On the south edge of the paved park road, south of Big Chico Creek, about 120 yards southwest of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. 68 Comment
  CHSC109785  Chenopodium vulvaria Lowell Ahart 2012-10-20 18488 Butte On the south side of the paved park road and Big Chico Creek, about 50 yards east of Table 5, west of Cedar Grove, Lower Bidwell Park, Chico. 68 Comment
  CHSC11043  Vinca major Lowell Ahart 1967-4-12 Butte Near Bidwell Bar. 304 Comment
  CHSC11063  Baccharis salicifolia Lowell Ahart 1968-5-8 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC110990  Crataegus monogyna Lowell Ahart 2012-5-17 18084 Butte On both sides of the horse trail, between the paved park road and the poor dirt road, between Table 21 and Larch, Lower Bidwell Park, Chico. 73 Comment
  CHSC110991  Ligustrum sinense Lowell Ahart 2012-6-21 18208 Butte On the south bank of Big Chico Creek, about 200 yards east of the dam at Sycamore Pool, Lower Bidwell Park, Chico. 62 Comment
  CHSC111128  Ligustrum japonicum Lowell Ahart 2012-6-21 18199 Butte Lawn, on the south side of the paved park road, west of the entrance from Woodland Avenue, Lower Bidwell Park, Chico. 62 Comment
  CHSC111148  Cerastium fontanum subsp. vulgare Lowell Ahart 2012-6-14 18192 Butte On the south side of the path, south of CARD Community Center, Lower Bidwell Park, Chico. 62 Comment
  CHSC111174  Cyperus erythrorhizos Lowell Ahart 2013-6-18 18807 Butte About 60 yards west of Parking Lot 14, Gray Lodge Wildlife Management Area, about 7 miles (air) southwest of Gridley. 19 Comment
  CHSC111389  Carex multicaulis Lowell Ahart 2012-4-30 17923 Butte Near a small drainage, north of the meadow, southwest of Ten Mile House Road, about 1/4 mile west of Highway 32, about 9 miles (air) northeast of Chico, south part of Upper Bidwell Park. 268 Comment
  CHSC111394  Raphanus raphanistrum Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18013 Butte On disturbed soil, on the east side of the horse path, about 100 yards north of the paved park road, west side of the old walnut orchard, south of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. 76 Comment
  CHSC111733  Acer circinatum Lowell Ahart; Susan Bazell, Josephine Guardino, Wes Dempsey 2012-6-21 18202 B Butte About 50 yards south of the dam at SycamorePool, Lower Bidwell Park, Chico. 62 Comment
  CHSC111742  Sambucus nigra subsp. caerulea Lowell Ahart 2012-7-5 18280 Butte On the south side of Big Chico Creek, east of the Deer Pen, between Table 12 and 13, Lower Bidwell Park, Chico. 65 Comment
  CHSC111978  Monardella breweri subsp. lanceolata Lowell Ahart 2012-6-2 18135 Butte Along the east side of a poor dirt road, about 100 yards north of Truex Road, west of intersection of Truex Road and Trevor Road, about 1/8 mile northwest of the West Branch Bridge across Lake Oroville. 286 Comment
  CHSC112043  Cuscuta campestris Lowell Ahart 2012-8-22 18423 Butte On Xanthium strumarium. On dry disturbed red soil, on the south side of the Railroad Signal Box, east side of the Railroad, about 20 yards south of Cental House Road, about 2 miles (air) northwest of Honcut. 35 Comment
  CHSC112095  Carex densa Lowell Ahart 2012-5-20 18095 Butte Along a small drainage, about 15 feet east of the Guardian Trail, southeast part of Upper Bidwell Park, northeast of Chico. 346 Comment
  CHSC112194  Veronica peregrina subsp. xalapensis Lowell Ahart 2013-4-20 18560 Butte In corral at the barn, about 1/4 mile north of the Honcut Cemetary, about 3 1/4 mile (air) northeast of Honcut. 47 Comment
  CHSC112328  Lythrum hyssopifolia Lowell Ahart 2013-7-9 18833 Butte South side of North Honcut Creek, west of the steel power line, about 2 mile (air) northeast of Honcut, about 13 miles (air) southeast of Oroville. 37 Comment
  CHSC112337  Potamogeton foliosus subsp. foliosus Lowell Ahart 2013-7-6 18823 Butte Peter Ahart Ranch, about 1 3/4 miles north and 1 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville. 37 Comment
  CHSC112604  Echinochloa crus-galli Lowell Ahart 2013-9-20 19055 Butte Along a ditch, about 100 yards west of the railroad, about 400 yards south of the Rice Experiment Station buildings, about 2 miles southeast of Richvale. 30 Comment
  CHSC112678  Paspalum urvillei Lowell Ahart 2013-7-1 18822 Butte Seep along road gutter, on the east side of Black Bart Road, about 3/4 mile (by road) southwest from the intersection of Forbestown Road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown. 731 Comment
  CHSC112730  Najas guadalupensis subsp. guadalupensis Lowell Ahart 2013-10-16 19116 Butte Thermalito Afterbay, about 20 feet north of the base of the large rock levee, about 100 yards north of Larkin Road, about 4 miles (air) north of East Biggs. 49 Comment
  CHSC112731  Sorghum halepense Lowell Ahart 2013-10-12 19110 Butte On the west side of Upper Palermo Road, about 250 yards south of the intersection, about 2 miles (air) northeast of Palermo. 51 Comment
  CHSC112784  Carex lemmonii Lowell Ahart 2013-5-27 18712 Butte On the east side of Black Bart Road, about 3/4 mile (by road) southwest from the intersection of Forbestown Road and Black Bart Road, about 3 1/4 miles (air) southwest of Forbestown. 731 Comment
  CHSC113125  Cynodon dactylon Lowell Ahart 2013-11-18 19284 Butte Below the high water line of Lake Oroville, about 150 yards northeast of the boat ramp at the end of Stringtown Road, about 50 yards north of the road, about 2 1/2 miles (air) northeast of Hurleton. 261 Comment
  CHSC113145  Chamaesyce maculata Lowell Ahart 2013-11-13 19252 Butte Along road, about 100 yards west of the intersection of Sucker Run Road and Ponderosa Way, about 400 yards north of the Ponderosa Dam spillway. 299 Comment
  CHSC113156  Calycadenia truncata Lowell Ahart 2013-11-13 19254 Butte Between the road and the large cutbank, about 50 yards southeast of the Ponderosa Dam spillway. 299 Comment
  CHSC113171  Epilobium ciliatum subsp. ciliatum Lowell Ahart 2013-11-13 19246 Butte Below the high water line of Lake Oroville, along the sides of Sucker Creek, about 30 yards north of the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 244 Comment
  CHSC113193  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2013-11-29 19291 Butte Below the high water line of Lake Oroville, about 250 yards west of the old road, about 3 1/2 miles (air) northeast of Oroville Dam. 225 Comment
  CHSC113202  Juncus leiospermus var. leiospermus Lowell Ahart 2014-5-2 19422 Butte About 1/2 mile north of the Improved Parking Area and Cherokee Road, North Table Mountain, about 8 miles (air) north of Oroville. 424 Comment
  CHSC113233  Elatine californica Lowell Ahart 2014-4-30 19420 Butte About 50 yards south of Lower Honcut Road, about 50 yards west of the Railroad, about 1 3/4 miles (air) southwest of Honcut. 23 Comment
  CHSC113296  Brassica rapa Lowell Ahart 2014-4-9 19330 Butte Rice field, near the pump, on the north side of Colusa Highway, about 4/10 of a mile east of the intersection of Pennington Road and Colusa Highway, about 5 1/2 miles west of Gridley. 22 Comment
  CHSC113359  Persicaria lapathifolia Lowell Ahart 2014-4-25 19409 Butte Sides of a cleaned ditch, on the west side of Richvale South Highway, south of the intersection of Richvale West Road and Richvale South Highway, Richvale. 30 Comment
  CHSC113366  Veronica peregrina subsp. xalapensis Lowell Ahart 2014-4-16 19375 Butte On the sides but near the bottom of a large canal, about 100 yards north of East Gridley Road, on the west side of the Feather River, about 2 miles east of Gridley. 29 Comment
  CHSC113390  Cephalanthera austiniae Lowell Ahart 2014-7-2 19539 Butte North edge of a small meadow, on the south side of the County Road, about one mile west of the intersection of County Road and Lumpkin Road, about 7 miles northeast of Feather Falls. 1260 Comment
  CHSC113391  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2014-6-1 19533 Butte Manmade shallow duck field, about 50 yards south of Lower Honcut Road, about 50 yards west of the Railroad, about 1 3/4 miles (air) southwest of Honcut. 23 Comment
  CHSC113423  Trifolium breweri Lowell Ahart 2014-7-7 19572 Butte South of the intersection of Humbug Road and Philbrook Road, about 2 miles (air) northwest of Philbrook Reservoir. 1597 Comment
  CHSC113443  Kyhosia bolanderi Lowell Ahart 2014-7-13 19647 Butte Southwest edge of a large wet meadow (some bog), about 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC113452  Elatine ambigua Lowell Ahart 2014-7-31 19694 Butte Open edge of a rice field, Peter Ahart Ranch, about 2 1/4 miles north and 1/2 mile east of Honcut. 33 Comment
  CHSC113495  Veratrum californicum var. californicum Lowell Ahart 2014-7-16 19691 Butte Along the south edge of a large wet meadow (some bog), about 110 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC113512  Madia gracilis Lowell Ahart 2014-7-7 19566 Butte About 5 yards east of the Skyway, about one-mile north of Stirling City. 1142 Comment
  CHSC113603  Polygonum aviculare subsp. aviculare Lowell Ahart 2014-8-24 19728 Butte On the south side of the road, about 50 yards west of Woodleaf Creek, about 1/2 mile southwest of the Forbestown Reservoir Dam, about 4 miles (air) northeast of Forbestown. 611 Comment
  CHSC113917  Acmispon brachycarpus Lowell Ahart 2014-5-13 19457 Butte North of a small drainage, below the high water line of Lake Oroville, about 250 yards southeast of the trail, trail starts at the parking area at the Enterprise Boat Launch Area, about 11 miles (air) east of Oroville. 241 Comment
  CHSC113921  Veronica americana Lowell Ahart 2014-5-13 19466 Butte Along the sides of McCabe Creek, below the high water line of Lake Oroville, about 200 yards southwest of the poor parking area, about 11 miles (air) east of Oroville. 244 Comment
  CHSC113941  Oxypolis occidentalis Lowell Ahart 2014-8-13 19703 Butte Near a small 'pond,' in the southwest part of a large wet meadow, about 110 yards southeast of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC113962  Sphenosciadium capitellatum Lowell Ahart 2014-7-13 19648 Butte North part of a large wet meadow (some bog), about 100 yards southeast of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC114950  Stellaria nitens Lowell Ahart 2015-3-14 19952 Butte On the south side Beatson Hollow, south of where the small stream flows into the stream on the bottom of Beatson Hollow, about 1 1/4 miles (air) northwest of Cherokee Road, about 7 miles (air) north of Oroville. 302 Comment
  CHSC114951  Castilleja lineariloba Lowell Ahart 2015-3-31 19986 Butte Road cut on the east side of Oroville Quincy Highway (162), about one mile north of the suspension bridge across Lake Oroville, about 7 miles (air) northeast of Oroville. 335 Comment
  CHSC114963  Collinsia sparsiflora var. collina Lowell Ahart 2015-3-14 19953 Butte On the south side of Beatson Hollow, south of where the small stream flows into the stream on the bottom of Beatson Hollow, about 1-1/4 miles (air) northwest of Cherokee Road, about 7miles (air) north of Oroville. 302 Comment
  CHSC114976  Castilleja pruinosa Lowell Ahart 2015-4-13 20035 Butte On the southwest side of Rim Road, about 3 miles (air) north of Jarbo Gap, about 17-1/2 miles (air) north of Oroville. 907 Comment
  CHSC115274  Philadelphus lewisii Lowell Ahart 2015-5-5 20144 Butte On the south side of the gravel road, Oroville Wildlife Area, about one mile south of the Headquarters, about one mile south of Thermalito.Raparian Woodland (destroyed). 39 Comment
  CHSC115315  Castilleja applegatei subsp. pinetorum Lowell Ahart 2015-4-18 20051 Butte On the south side of the road to the Forbestown Reservoir, about 1/2 mile southwest of the Forbestown Reservoir, about 3 1/2 miles (air) northeast of Forbestown. 669 Comment
  CHSC115334  Elatine Lowell Ahart 2015-4-24 20070 Butte Normal size plants, on damp bare soil, bottom of a large duck field. 19 Comment
  CHSC116207  Eriodictyon lobbii Lowell Ahart 2015-7-4 20267 Butte On both sides of the dirt road, branch road to a meadow west of road to Jackson Ranch, about 300 yards north of the County Road, about one mile west of the intersection of Lumpkin Ridge Road, road to Cascade or Fall River and County Road, about 7 (air) miles northeast of Feather Falls. 1252 Comment
  CHSC116210  Cynosurus echinatus Lowell Ahart 2015-6-16 20226 Butte On the west side of the paved road, about 4 miles (by road) northwest of Fall River Bridge, about 5 1/2 miles (air) northwest of Camp 18, about 9 miles (air) northeast of Feather Falls. 1406 Comment
  CHSC116285  Gnaphalium palustre Lowell Ahart 2015-10-26 20601 Butte Strand of Lake Oroville, on west side of West Branch of Feather River, about 1 mile (air) southeast of Kunckle Reservoir, about 5 miles (air) southeast of Paradise. 207 Comment
  CHSC116316  Mentha pulegium Lowell Ahart 2015-11-18 20661 Butte Marsh like area, on the west side of the Feather River, about 1/2 mile south of Palm Avenue, about 1 1/2 miles southeast of the intersection of Palm Avenue and Larkin Road, about 5 miles (air) northeast of Gridley. 26 Comment
  CHSC116324  Symphyotrichum subulatum var. elongatum Lowell Ahart 2015-10-20 20572 Butte On the west side of the Feather River, about half way of and east of One Mile Pond, about 6 miles (air) east of Biggs. 26 Comment
  CHSC116637  Sherardia arvensis Lowell Ahart 2016-4-15 20751 Butte On the west side of Swedes Flat Road, about 1/2 mile southwesst of Dutch Ravine, about 8 miles (air) southest of Oroville. 384 Comment
  CHSC116706  Lomatium dasycarpum subsp. tomentosum Lowell Ahart 2016-5-14 20824 Butte On the east side of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 57 Comment
  CHSC116726  Logfia gallica Lowell Ahart 2016-5-25 20880 Butte On the north side of the water ditch, about 200 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. 44 Comment
  CHSC116735  Eryngium castrense Lowell Ahart 2016-5-24 20849 Butte On dry yellow soil, near the ditch, about 200 yards west of Loma Rica Road, about 300 yards southwest of the intersection of Loma Rica Road and La Porte Road, about 3 1/2 miles (air) northeast of Honcut. 50 Comment
  CHSC116746  Heterocodon rariflorum Lowell Ahart 2016-5-24 20858 Butte About 50 yards north of the ditch, about 150 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. 44 Comment
  CHSC116989  Festuca microstachys var. pauciflora Lowell Ahart 2016-6-4 20935 Butte On the west side of Ponderosa Way, about 1 mile (air) northwest of Sunset Hill, about 2 1/8 mile (air) northwest of Forbestown. 732 Comment
  CHSC116994  Galium parisiense Lowell Ahart 2016-6-4 20925 Butte On the north side of Lumpkin Road, about 100 yards north of McCabe Creek, about 3 miles (air) west of Forbestown. 387 Comment
  CHSC117019  Juncus hemiendytus var. hemiendytus Lowell Ahart 2016-6-2 20907 Butte Depression (mud puddle) in the middle of a poor road, about 50 yards east of cow corral, about 200 yards north of the County Road, about one mile we of the intersection of County Road and Lumpkin Road, about 7 miles northeast of Feather Falls. 1281 Comment
  CHSC117400  Heliotropium europaeum Lowell Ahart 2016-5-30 20888 Butte On the bottom of a deep wash (west of where we removed gravel), Peter Ahart Ranch, about 1 1/2 miles north and 1 1/8 miles east of Honcut, about 12 miles (air) southeast of Oroville. 31 Comment
  CHSC117421  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2016-5-30 20889 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 1/8 miles east of Honcut, about 12 miles (air) southeast of Oroville. 31 Comment
  CHSC117441  Brodiaea elegans subsp. elegans Lowell Ahart 2016-5-24 20872 Butte On the west side of a large drainage, about 50 yards north of the ditch, about 150 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. 44 Comment
  CHSC118552  Callitriche fassettii Lowell Ahart; Emily Meigs Doe 2017-4-1 21388 Butte About 5 yards south of fence, east of the canyon that is the south branch of Coal Canyon, about 1 mile (air) northwest of the improved parking area, North Table Mountain, about 8 miles (air) north of Oroville. 343 Comment
  CHSC25482  Psilocarphus tenellus var. globiferus L. Ahart 1977-4-15 1300 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC25484  Plagiobothrys greenei L. Ahart 1977-4-15 1297 Butte Found in the bottom of swales and vernal pools. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC27050  Erythranthe geniculata Lowell Ahart 1978-5-2 Butte On Table Mountain, n of Oroville. 400 Comment
  CHSC27052  Pilularia americana Lowell Ahart 1978-5-1 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC27054  Polycarpon tetraphyllum Lowell Ahart 1978-6-2 1751 Butte Peter Ahart Ranch, Honcut. Along the edge of North Honcut Creek. 50 Comment
  CHSC30049  Isolepis cernua L. Ahart 1980-5-12 2259 Butte Along the wet edges of North Honcut Creek, ca. 1 mi n and 2 1/2 mi e of Honcut. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC30950  Cordylanthus pilosus subsp. trifidus L. Ahart 1980-7-4 2450 Butte Ca. 1/2 mi se of the Oak Grove Cemetary, ca. 1 mi se of Hurleton. 600 Comment
  CHSC30952  Heteromeles arbutifolia L. Ahart 1980-7-4 2455 Butte Ca. 1/2 mi se of the Oak Grove Cemetary, ca. 1 mi se of Hurleton. 600 Comment
  CHSC30954  Juncus dubius L. Ahart 1980-7-4 2458 Butte Small meadow near the jct of Forbestown Rd and Black Bart Rd, ca. 1 mi w of Robinson Mill Rd, w of Forbestown. 750 Comment
  CHSC31516  Equisetum hyemale subsp. affine L. Ahart 1977-6-16 1416 Butte On both sides of North Honcut Creek, 3.0 mi ne of Honcut near Peter Ahart Ranch. 50 Comment
  CHSC31535  Holozonia filipes L. Ahart 1974-7-9 549 Butte Along banks of North Honcut Creek on moist soil. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31630  Panicum acuminatum var. acuminatum L. Ahart 1974-6-24 500 Butte Along North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31632  Digitaria sanguinalis L. Ahart 1977-7-19 1481 Butte Along the edges of North Honcut Creek. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC31634  Phalaris minor L. Ahart 1974-6-6 477 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31647  Lepidium strictum L. Ahart 1971-4-13 70 Butte Peter Ahart Ranch, Honcut. Along edge of roads. 45 Comment
  CHSC31671  Lipocarpha micrantha L. Ahart 1973-8-13 271 Butte In North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31728  Agrostis exarata var. monolepis L. Ahart 1977-6-16 1421 Butte In a small wash that drains into North Honcut Creek. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC31775  Microsteris gracilis L. Ahart 1975-3-26 723 Butte Along North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31789  Prunella vulgaris var. lanceolata L. Ahart 1977-6-3 1407 Butte Peter Ahart Ranch, Honcut. Along edges of North Honcut Creek. 50 Comment
  CHSC31810  Galium aparine L. Ahart 1974-4-24 420 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31812  Robinia pseudoacacia L. Ahart 1975-5-3 748 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31814  Trifolium bifidum var. decipiens L. Ahart 1979-5-11 1865 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC31849  Odontostomum hartwegii L. Ahart 1977-4-16 1306 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC31869  Dopatrium junceum L. Ahart 1974-7-20 555 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31897  Ceanothus cuneatus L. Ahart 1974-3-8 309 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31910  Juncus leiospermus var. ahartii L. Ahart 1974-4-24 423 Butte In small vernal pool. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC32109  Mentha pulegium L. Ahart 1969-8-12 31 Butte Near Honcut. 45 Comment
  CHSC32121  Lemna minuta L. Ahart 1975-1-9 696 Butte In dredger pond near edge of North Honcut Creek, from Honcut go e to Dunstone Dr, stop when at s curve, then go w ca. 1/4 mi to North Honcut Creek; 2 mi n and 3 mi e of Honcut. 60 Comment
  CHSC32150  Aphyllon epigalium subsp. epigalium L. Ahart 1970-5-19 55 Butte Along Doon Grade, near Paradise. 762 Comment
  CHSC33678  Melilotus indicus L. Ahart 1981-5-16 2797 Butte Along the edge of dirt rd on Gray-Lodge Waterfowl Mgmt Area, 11 mi sw of Gridley. 35 Comment
  CHSC34137  Cyperus strigosus L. Ahart 1981-9-19 3185 Butte Along edge of Feather River, ca. 100 m s of Arch Rock Tunnel on Hwy 70, ca. 10 mi s of Storrie. 550 Comment
  CHSC34140  Baccharis douglasii Lowell Ahart 1981-9-27 3215 Butte Ca. 3/4 mi NE of jct of Lower Wyandotte Rd and Upper Palermo Rd, ca. 1/8 mi S of the ORO Bangor Hwy, ca. 5 mi NE of Palermo. 100 Comment
  CHSC34142  Hydrocotyle umbellata L. Ahart 1981-9-27 3212 Butte Ca. 1/8 mi ne of jct of Lower Wyandotte Rd and Upper Palermo Rd, ca. 4 mi ne of Palermo. 80 Comment
  CHSC34144  Melissa officinalis L. Ahart 1981-9-27 3210 Butte On sides of dredger piles ca. 1/8 mi ne of jct of Lower Wyandotte Rd and Upper Palermo Rd, ca. 4 mi ne of Palermo. 80 Comment
  CHSC34162  Schoenoplectus acutus var. occidentalis L. Ahart 1981-8-31 3061 Butte Drying bottom of Wyandotte Lake, ca. 8 mi e of Oroville. 137 Comment
  CHSC34164  Poa pratensis L. Ahart 1981-9-15 3155 Butte On the sides of Pinkard Creek, ca. 1/2 mi n of Lost Creek Reservoir. 1100 Comment
  CHSC34178  Artemisia douglasiana L. Ahart 1981-9-15 3162 Butte Ca. 1 mi N of Lost Creek Reservoir, ca. a little W of Pinkard Creek, ca. 1 mi W of Sly Creek Reservoir. 1200 Comment
  CHSC34776  Suaeda calceoliformis L. Ahart 1981-11-6 3227 Butte On banks of small ditch, w of parking area, e of Graylodge Waterfowl Mgmt HQ, ca. 1/2 mi w of Pennington Rd, ca. 12 mi sw of Gridley. 35 Comment
  CHSC34787  Rumex salicifolius var. denticulatus L. Ahart 1981-9-26 3204 Butte On gravel bar along the Sacramento River, ca. 6 mi w of Chico. 40 Comment
  CHSC36511  Galium parisiense L. Ahart 1982-5-29 3446 Butte Peter Ahart Ranch, ca. 1.5 mi N and 2 1/4 mi E of Honcut. 50 Comment
  CHSC36973  Leptosiphon acicularis L. Ahart 1982-5-3 3404 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC37126  Anemone oregana L. Ahart 1982-9-13 3829 Butte Along Pinkard Creek, ca. 1/8 mi n of Lost Creek Reservoir Dam, ca. 2.2 mi nw of Strawberry Valley. 1100 Comment
  CHSC37139  Mimetanthe pilosa L. Ahart 1982-8-22 3752 Butte Along edges of North Honcut Creek, a little sw of the Peter Ahart Ranch, ca. 1 mi n and 2 and 3/4 mi e of Honcut. 50 Comment
  CHSC37262  Galium parisiense L. Ahart 1982-6-15 3582 Butte Ca. 1.5 mi E of camp 18, ca. 8 mi E of Feather Falls. 1000 Comment
  CHSC37264  Galium aparine L. Ahart 1982-6-15 3569 Butte Ca. 1.5 mi E of Camp 18, ca. 8 mi E of Feather Falls. 1000 Comment
  CHSC39266  Calycadenia truncata Lowell Ahart 1983-6-30 4182 Butte Along the dirt road, about 1 1/2 miles northeast of Concow Res. 550 Comment
  CHSC39281  Leptosiphon filipes Lowell Ahart 1983-7-29 4257 Butte Found along the edge of the dirt road, about 3 miles east of Milsap Bar, about 25 miles north-east of Oroville. 1100 Comment
  CHSC39293  Acmispon argophyllus var. fremontii Lowell Ahart 1983-7-29 4256 Butte Along the edge of a dirt road, about 3 miles east of Milsap Bar, about 25 miles northeast of Oroville. 1100 Comment
  CHSC39331  Keckiella breviflora var. glabrisepala Lowell Ahart 1983-6-26 4131 Butte Along Ponderosa Way, about 1/2 mile west of the East Fork of Canyon Creek, about 14 miles north-east of Oroville. Note: the sign gives Big Ridge Road instead of Ponderosa Way. 500 Comment
  CHSC39348  Polypogon monspeliensis Lowell Ahart 1983-6-26 4150 Butte Along the edge of Ponderosa Way, about 1 1/2 miles south-east of the East Fork of Canyon Creek, about 14 1/2 miles north-east of Oroville. Note: the sign gives Big Ridge Road instead of Ponderosa Way. 575 Comment
  CHSC39428  Muhlenbergia filiformis L. Ahart 1983-8-16 4305 Butte Near Bull Hill Road, ca. 3 miles south of Butte Meadows. 1450 Comment
  CHSC39512  Prunella vulgaris var. lanceolata Lowell Ahart 1983-6-21 4067 Butte Along Bloomer Hill Road. Near a Branch of Canyon Creek, about 1/2 mile west of the Oroville Quincy Highway, about 15 miles north-east of Oroville. Section 5. 40 Comment
  CHSC39514  Navarretia intertexta Lowell Ahart 1983-6-12 4038 Butte In a meadow, about 1 mile south of Crystal Hill, near Oregon Gulch, near Lake Oroville, about 7 miles south-west of Feather Falls. 425 Comment
  CHSC39549  Adiantum capillus-veneris Lowell Ahart 1983-7-29 4236 Butte About 1/2 mile east of Milsap Bar, about 25 miles north-east of Oroville. 500 Comment
  CHSC39597  Fritillaria eastwoodiae Lowell Ahart 1983-4-14 3933 Butte On the east side of Woodleaf Creek, above the road, about 3/8 mile south-west of the Forbestown Reservoir., about 4 miles north-east of Forbestown. 450 Comment
  CHSC39601  Trifolium ciliolatum Lowell Ahart 1983-5-13 3987 Butte Along North Honcut Creek, Peter Ahart Ranch, about 1 1/4 miles north and 3 miles east of Honcut. 50 Comment
  CHSC39613  Paxistima myrsinites Lowell Ahart 1983-3-28 3909 Butte Found on the east bank of Woodleaf Creek, above the road, about 3/8 mile southwest of the Forbestown Res., about 4 miles northeast of Forbestown. 450 Comment
  CHSC39629  Trifolium depauperatum var. amplectens Lowell Ahart 1983-5-12 3981 Butte Growing along the power line, about 1/2 mile north-east of Highway 99 and Pentz Road. 65 Comment
  CHSC40266  Pyrola aphylla Lowell Ahart 1985-6-17 5052 Butte Along the dirt road on Fields Ridge, about 4 miles south-east of Feather Falls. 792 Comment
  CHSC40281  Acmispon glaber Lowell Ahart 1985-5-31 5037 Butte About 25 feet below the high water line of Lake Oroville, about 1/4 mile west of the Enterprise Launch Area, about 1 mile west of the Ensterprise Bridge, north-east of Oroville. 274 Comment
  CHSC40293  Phleum pratense Lowell Ahart 1985-7-24 5156 Butte Below the high water line of the Forbestown Res., about 50 yards south of the Generator, about 4 1/2 miles north-east of Forbestown. 350 Comment
  CHSC40331  Poterium sanguisorba Ahart; Jokerst 1985-5-10 4958 Butte Near and on a small washed out dam across the east branch of Potter Ravine, about 2 1/4 miles north of Oroville Dam. 320 Comment
  CHSC40348  Juncus capitatus Ahart; Jokerst 1985-5-10 4957 Butte Small meadow, near the washed out dam across the east branch of Potter Ravine, about 2 1/4 miles north of Oroville Dam. 320 Comment
  CHSC40372  Verbena lasiostachys var. scabrida Lowell Ahart 1985-5-6 4937 Butte On the bottom of Lindo Channel, about 1/10 mile east of Longfellow Avenue, Chico. 60 Comment
  CHSC40374  Linum lewisii var. lewisii Lowell Ahart 1985-5-15 4993 Butte On dry rocky red serpentine soil, east of a small stream, 1/8 mile east of the dirt road, about 1 1/2 miles north-east of Concow Res. 731 Comment
  CHSC40457  Elymus elymoides subsp. elymoides Lowell Ahart 1985-6-30 5091 Butte 100 yards south of the road to the Forbestown Res., south of the Forbestown Ditch, about 2 1/2 miles north-east of Forbestown. 883 Comment
  CHSC40473  Chaenactis glabriuscula var. heterocarpha Lowell Ahart 1985-5-15 4968 Butte West of Lunt Road, about 1/2 mile north of the intersection of Lunt Road and Highway 70, north of Yankee Hill. 502 Comment
  CHSC40475  Conyza floribunda Lowell Ahart 1985-1-27 4836 Butte Along the road at Kunkle Res., about 2 miles south of Paradise. 550 Comment
  CHSC40489  Packera eurycephala var. eurycephala Lowell Ahart 1985-6-30 5089 Butte 100 yards south of the road to the Forbestown Res., south of the Forbestown Ditch, about 2 1/2 miles north-east of Forbestown. 883 Comment
  CHSC40549  Micropus californicus var. californicus Ahart; Jokerst 1985-3-24 4852 Butte Serpentine Point, west of Yankee Hill. 550 Comment
  CHSC40597  Lupinus polycarpus Lowell Ahart 1985-4-1 4873 Butte Along Table Mountain Boulevard, near the Cambell Overflow, a little south of the intersection of Highway 70 and 149, about 7 miles north of Oroville. 100 Comment
  CHSC40613  Claytonia exigua subsp. exigua Ahart; Jokerst 1985-3-24 4859 Butte Found growing on damp bare broken disturbed serpentine west of Lunt Road, about 1/2 mile north of the intersection of Lunt Road and Highway 70, north of Yankee Hill. 550 Comment
  CHSC40916  Medicago praecox Lowell Ahart; John Thomas Howell 1976-4-1 1030 Butte Along Cherokee Road, about 1/4 mile north of the large parking area, Table Mountain, north of Oroville. 365 Comment
  CHSC41381  Heracleum lanatum Lowell Ahart 1986-7-2 5342 Butte Along a small stream, south of the dirt road, about 1/2 mile south-west of Bald Mountain, about 4 1/2 miles north-east of Stirling City. 1615 Comment
  CHSC41891  Spergularia rubra Lowell Ahart 1986-8-15 5389 Butte Along a branch of Last Chance Creek, about 1 mile west of Bald Mountain, about 4 1/2 miles north-east of Stirling City. 1371 Comment
  CHSC41918  Cuscuta californica Lowell Ahart 1983-8-16 4282 Butte Along Humboldt Road, about 3 miles south-west of Butte Meadows. 1450 Comment
  CHSC41979  Aristida ternipes var. hamulosa Lowell Ahart 1986-11-14 5466 Butte About 1/10 mile south of the clay burrow for Oroville Dam, 1/4 mile east of Larkin Road, about 6 miles south-west of Oroville. 36 Comment
  CHSC41985  Crypsis schoenoides Lowell Ahart 1986-11-9 5435 Butte Below the high water line of Lake Oroville, at the boat launch area off the Oroville Quincy Highway, near Canyon Creek, about 12 miles north-east of Oroville. 269 Comment
  CHSC41991  Selaginella wallacei Lowell Ahart 1976-4-17 1083 Butte Along the trail to Feather Falls, near the Feather Falls overlook, about 5 miles north of Feather Falls. 609 Comment
  CHSC42003  Ceanothus cuneatus Lowell Ahart 1961-3-16 3 Butte At the Salmon Hole, Upper Bidwell Park, Chico. 91 Comment
  CHSC42005  Thysanocarpus curvipes Lowell Ahart 1975-3-27 728 Butte Along Swedes Flat Road, about 1/8 mile east of the bridge across Rocky Honcut Creek, north-east of Bangor. 304 Comment
  CHSC42011  Portulaca oleracea Lowell Ahart 1986-11-3 5414 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC42098  Ammannia coccinea Lowell Ahart 1986-11-9 5442 Butte About 1/10 mile south of the clay burrow for Oroville Dam, 1.4 mile east of Larkin Road, about 6 miles south-west of Oroville. 36 Comment
  CHSC42127  Elatine heterandra Lowell Ahart 1984-5-8 4598 Butte About 2-1/2 miles north and 1/2 miles east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC42133  Downingia bella Lowell Ahart 1984-5-7 4587 Butte On the bottom and sides of a small swale, Peter Ahart Ranch, about 1 1/2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC42353  Phacelia heterophylla subsp. virgata Lowell Ahart 1987-5-9 5593 Butte On dry disturbed soil along Pulga Road, about 1/2 mile south-west of Bardees Bar along the North Fork of the Feather River, about 3 miles south-west of Pulga. 365 Comment
  CHSC42355  Nama lobbii Lowell Ahart 1987-5-22 5685 Butte A little north of the dirt county road, Lumpkin Ridge Road, about 4 miles northeast of Feather Falls. 1280 Comment
  CHSC42361  Epilobium minutum Lowell Ahart 1987-5-6 5530 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC42386  Juncus tenuis Lowell Ahart 1987-5-27 5695 Butte On a sand bar along the North Fork of the Feather River, near the Poe Power House, about 2 miles southeast of Jarbo Gap. 271 Comment
  CHSC42450  Polypogon interruptus Lowell Ahart 1987-5-27 5699 Butte On a sand bar along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC42452  Poa bulbosa Lowell Ahart 1987-5-27 5718 Butte At the intersection of Big Bend Road and Dark Canyon Road, about 1 mile south of Jarbo Gap. 640 Comment
  CHSC42454  Poa annua Lowell Ahart 1987-5-6 5559 Butte On a gravel bar along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC42526  Medicago polymorpha Lowell Ahart 1987-4-30 5494 Butte On gravel bars along North Honcut Creek, about 2 1/2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 67 Comment
  CHSC42539  Trifolium hirtum Lowell Ahart 1987-5-9 5584 Butte Along Pulga Road, about 1/4 mile west of Bardees Bar along the North Fork of the Feather River, about 2 1/2 miles south-west of Pulga. 365 Comment
  CHSC42718  Micranthes aprica Lowell Ahart; Vern Oswald 1987-6-10 5747 Butte Around a small drying meadow, at Sunflower Flat, about 2 1/2 miles east of Snow Mountain, about 5 miles north-east of Philbrook Reservoir. 1981 Comment
  CHSC42756  Euthamia occidentalis Lowell Ahart 1987-8-3 5844 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC42851  Avena barbata Lowell Ahart 1987-5-6 5548 Butte At the Poe Power House along the North Fork of the Feather River, about 2 miles south-east of Jarbo Gap. 283 Comment
  CHSC42863  Erythranthe guttata Lowell Ahart 1987-4-30 5487 Butte Along North Honcut Creek, about 2 1/2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 67 Comment
  CHSC42865  Erythranthe pulsiferae Lowell Ahart 1987-5-12 5654 Butte South of Lumpkin Ridge Road, 1 1/2 miles north-east of Camp 18, about 8 miles north-east of Feather Falles. 1280 Comment
  CHSC42920  Elymus glaucus subsp. jepsonii Lowell Ahart 1987-7-8 5808 Butte Along Big Bar Mountain Road, about 1 mile south-west of Coyote Gap, about 5 miles east of Pulga. 1280 Comment
  CHSC42945  Leucothoe davisiae Lowell Ahart 1987-7-8 5817 Butte Along a side road near Walker Plains Road, about 1 1/2 miles north-east of Coyote Gap, about 6 miles north-east of Pulga. 1341 Comment
  CHSC42951  Elymus trachycaulus subsp. subsecundus Lowell Ahart 1987-7-3 5789 Butte On a gravel bar, along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC42963  Dysphania pumilio Lowell Ahart 1987-7-17 5834 Butte On a gravel bar along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC42965  Mimulus moschatus Lowell Ahart 1987-7-3 5786 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC42996  Agrostis exarata Lowell Ahart 1987-7-8 5799 Butte Along Big Bar Mountain Road, about 3 miles south-west of Coyote Gap, south-east of Pulga. 1280 Comment
  CHSC43238  Artemisia douglasiana Lowell Ahart 1987-9-24 5894 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles southeast of Jarbo Gap. 271 Comment
  CHSC43241  Erigeron bonariensis Lowell Ahart 1987-9-24 5897 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC43277  Paspalum urvillei Lowell Ahart 1987-10-16 5912 Butte Along Oroville Quincy Highway, along the edge of Madrone Lake. 609 Comment
  CHSC43286  Alisma triviale Lowell Ahart 1987-9-4 5883 Butte On the bottom of North Honcut Creek, about 2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 67 Comment
  CHSC43410  Velezia rigida Lowell Ahart 1979-5-29 1899 Butte Along the edges of a small wash, east of Kunkle Creek, about 2 1/2 miles south-east of Paradise. 487 Comment
  CHSC43497  Ranunculus bonariensis var. trisepalus Lowell Ahart 1979-5-20 1883 Butte On the west side of the Western Pacific Railroad, about 2 miles south of Palermo. On the edge of a deep depression. 33 Comment
  CHSC43528  Cyperus niger Lowell Ahart 1979-9-8 2019 Butte Along the edge of old Highway 40, about 1/2 mile west of Oroville Dam, about 6 miles east of Oroville. 167 Comment
  CHSC43557  Circaea alpina subsp. pacifica Lowell Ahart 1978-5-31 1746 Butte Along a stream, near the South Fork of the Feather River, where the log bridge crosses the river, about 5 miles west of the Sly Creek Dam. 731 Comment
  CHSC43727  Myosurus minimus Lowell Ahart 1981-4-6 2747 Butte South-east of the Gray Lodge Headquarters, about 8 miles south-west of Gridley. 28 Comment
  CHSC44322  Leptosiphon bicolor Lowell Ahart 1979-4-17 1824 Butte Near North Honcut Creek, about 300 feet north of Avocado Avenue, about 3 miles north-west of Bangor. 91 Comment
  CHSC44343  Dodecatheon hendersonii Lowell Ahart 1988-3-28 5951 Butte Near a small shrub and a small stream, about 1/10 mile south of Lumpkin Ridge road, about 1 1/2 miles east of Camp 18, about 8 miles east of Feather Falls. 1280 Comment
  CHSC44345  Delphinium hesperium subsp. pallescens Lowell Ahart 1988-4-29 5966 Butte Slope west of North Honcut Creek, on the Joie Osgood Ranch, about 2 1/2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 68 Comment
  CHSC44363  Perideridia lemmonii Lowell Ahart 1988-6-29 6087 Butte Along Bloomer Hill Road (Ponderosa Way), about 1 1/2 miles west of Oroville Quincy Highway. 457 Comment
  CHSC44396  Trifolium glomeratum Lowell Ahart 1988-5-30 6029 Butte Near the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC44419  Polygonum parryi Lowell Ahart 1988-6-15 6041 Butte Small meadows or openings in pines, north of Forbestown Road, about 100 meters east of the intersection of Black Bart Road and Forbestown Road, about 1 mile west of Robinson Mill Road. 670 Comment
  CHSC44423  Delphinium hansenii subsp. hansenii Lowell Ahart 1988-6-29 6086 Butte Along Bloomer Hill Road (Ponderosa Way), about 1 1/2 miles west of Oroville Quincy Highway. 457 Comment
  CHSC44425  Rubus leucodermis Lowell Ahart 1988-6-23 6075 Butte In the meadow, south of the intersection of Black Bart Road and Forbestown Road, about 1 mile west of Robinson Mill Road. 670 Comment
  CHSC44442  Juncus bufonius var. bufonius Lowell Ahart 1988-6-29 6094 Butte South of Bean Creek Road, about 1/2 mile south-east of Little Bald Rock. 975 Comment
  CHSC44444  Juncus howellii Lowell Ahart 1988-6-23 6071 Butte In the meadow, south of the intersection of Black Bart Road and Forbestown Road, about 1 mile west of Robinson Mill Road. 670 Comment
  CHSC44460  Poa compressa Lowell Ahart 1988-6-29 6090 Butte East of Galen Ridge Road, about 1/2 mile east of the Oroville Quincy Highway, north of Lake Madrone. 621 Comment
  CHSC44462  Isoetes howellii Lowell Ahart 1988-4-6 5957 Butte East of North Honcut Creek, on the Joie Osgood Ranch, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 60 Comment
  CHSC44464  Cyclospermum leptophyllum Lowell Ahart 1988-5-15 6003 Butte On the south side of Oroville Dam Boulevard, east of McDonald's, Oroville. 42 Comment
  CHSC44478  Plagiobothrys fulvus var. campestris Lowell Ahart 1988-5-12 5993 Butte Pasture field, about 1/2 mile north-east of the Honcut Cemetery, Joie Osgood Ranch, about 3 1/2 miles east and 1 1/2 miles north of Honcut. 60 Comment
  CHSC45182  Schoenoplectus acutus var. occidentalis Lowell Ahart 1975-6-3 780 Butte In a ditch, Peter Ahart Ranch, about 2 miles north and 1/10 mi east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC45397  Ranunculus aquatilis var. hispidulus Lowell Ahart 1974-4-7 358 Butte In a small wash, Peter Ahart Ranch, about 1 1/2 miles north and 1 1/4 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC45415  Anemone oregana Lowell Ahart 1982-9-13 3829 Butte Near Pinkard Creek, about 1/8 mile north of the Lost Creek Reservoir, about 2 1/4 miles north-west of Strawberry Valley. 1005 Comment
  CHSC45488  Eriogonum roseum Lowell Ahart 1974-9-30 640 Butte Near North Honcut Creek, Peter Ahart Ranch, about 3/4 mile north and 2 1/2 miles east of Honcut, about 12 miles south of Oroville. 42 Comment
  CHSC45548  Dysphania botrys Lowell Ahart 1984-8-19 4781 Butte Growing on dry bare sand in an area where gravel is removed, north of the state borrow area, west of Pacific Heights Road, about 5 miles south-west of Oroville. 36 Comment
  CHSC45572  Minuartia californica Lowell Ahart 1976-4-11 1057 Butte Along the edge of roads, Peter Ahart Ranch, about 1 1/2 miles north and 2 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC45887  Torilis arvensis subsp. purpurea Lowell Ahart 1976-5-21 1118 Butte Along North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC45900  Hypericum anagalloides Lowell Ahart 1977-6-3 1404 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 1/4 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC45902  Astragalus gambelianus Lowell Ahart; Jim Jokerst 1985-3-24 4851 Butte Serpentine Point, west of Yankee Hill. 518 Comment
  CHSC45904  Astragalus gambelianus Lowell Ahart 1981-4-9 2751 Butte Near North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC46135  Clarkia unguiculata Lowell Ahart 1980-5-13 2266 Butte Along Pacific Heights Road, about 1 mile west of Highway 70, about 2 1/2 miles south-west of Oroville. 33 Comment
  CHSC46353  Spergularia bocconi Lowell Ahart 1989-5-23 6244 Butte Along the edges of Avocado Road, about 1/2 mile west of the Oroville Bangor Highway, about 1 mile north-west of Bangor. 213 Comment
  CHSC46355  Githopsis specularioides Lowell Ahart 1989-5-28 6275 Butte South of Oregon Gulch Road, about 1/2 mile north of the Cemetery, about 1 1/4 miles west of Rocky Point, about 10 miles east and 3 miles north of Oroville. 335 Comment
  CHSC46361  Convolvulus arvensis Lowell Ahart 1989-5-23 6237 Butte Near a small stream, near a new subdivision road, 1/2 mile east of Dunstone Drive, about 1/2 mile north of Bangor Park Road, west of Bangor. 76 Comment
  CHSC46377  Vicia villosa subsp. varia Lowell Ahart 1989-5-10 6213 Butte About 1/10 mile north-west of the West Branch Bridge across Lake Oroville, near Lake Oroville. 289 Comment
  CHSC46386  Clarkia purpurea subsp. quadrivulnera Lowell Ahart 1989-5-23 6249 Butte Along the edges of Avocado Road, about 1/2 mile west of the Oroville Bangor Highway, about 1 mile north-west of Bangor. 213 Comment
  CHSC46409  Diplacus layneae Lowell Ahart 1989-5-28 6292 Butte South of Oregon Gulch Road, about 1/2 mile north of the Cemetery, about 1 1/4 miles west of Rocky Point, about 10 miles east and 3 miles north of Oroville. 335 Comment
  CHSC46756  Cryptantha intermedia Lowell Ahart 1984-6-8 4677 Butte West of the seep, along the dirt road 1/10 mile north-west of the water tower, north of the generator, about 1 mile east of the Ponderosa Dam, about 2 miles north of Forbestown. 457 Comment
  CHSC46779  Plagiobothrys greenei Lowell Ahart 1978-4-27 1672 Butte On the bottom of a swale in the pasture fields, Peter Ahart Ranch, about 1 1/2 miles north and 1 1/2 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC46920  Euthamia occidentalis Lowell Ahart 1977-9-20 1570 Butte Along North Honcut Creek, Peter Ahart Ranch, about 1 1/4 miles north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC46922  Hesperevax caulescens Lowell Ahart 1962-5-11 7 Butte Open pasture fields, Peter Ahart Ranch, about 2 miles north and 1 1/2 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC46965  Psilocarphus oregonus Lowell Ahart 1979-5-11 1869 Butte In a grain field, Peter Ahart Ranch, about 2 miles north and 3/4 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC47554  Juncus howellii Lowell Ahart 1981-8-15 3047 Butte On the south side of the dirt road, about 1 mile east of Coon Hollow Road, southeast of Snag Lake, about 10 miles north of Inskip. 1524 Comment
  CHSC47641  Setaria sphacelata Lowell Ahart 1977-8-14 1551 Butte In a slough, Peter Ahart Ranch, about 1 mile north and 2 1/2 miles east of Honcut, about 12 miles south of Oroville. 42 Comment
  CHSC47677  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 1989-9-21 6392 Butte Along the south edge of the gravel road, south of French Creek, about 1 mile west of the Sly Creek Reservoir. 1158 Comment
  CHSC50018  Anthriscus caucalis Lowell Ahart 1990-4-8 6436 Butte On the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CHSC50056  Ranunculus hebecarpus Lowell Ahart 1990-3-19 6421 Butte At the base of banks along the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CHSC50636  Pellaea andromedifolia Lowell Ahart 1990-5-28 6503 Butte South of Palm Avenue, about 1/2 mile east of Larkin Road, about 2 1/2 miles north-east of East Gridley. 30 Comment
  CHSC50688  Limosella acaulis Lowell Ahart 1990-4-23 6464 Butte About 1/2 mile east of Larkin Road, about 1 mile south of the Oroville Airport. 45 Comment
  CHSC50703  Alopecurus carolinianus Lowell Ahart 1990-6-16 6517 Butte Along McCabe Creek, below the high water line of Lake Oroville, about 1/2 mile south-west of the Enterprise Bridge across Lake Oroville. 243 Comment
  CHSC50705  Eragrostis cilianensis Lowell Ahart 1990-6-16 6518 Butte Along McCAbe Creek, below the high water line of Lake Oroville, about 1/2 mile south-west of the Enterprise Bridge across Lake Oroville. 243 Comment
  CHSC51027  Juncus hemiendytus Lowell Ahart; Vern Oswald 1990-7-5 6550 a Butte In a small meadow, about 1/2 mile north of Butte Creek House, about 2 miles northeast of Snag Lake. 1828 Comment
  CHSC51033  Eragrostis cilianensis Lowell Ahart 1990-7-15 6556 Butte Along a stream, below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/4 mile north-west of the Enterprise Bridge across Lake Oroville. 243 Comment
  CHSC51035  Eragrostis hypnoides Lowell Ahart 1990-7-15 6557 Butte Along a stream, below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/4 mile north-west of the Enterprise Bridge across Lake Oroville. 243 Comment
  CHSC51248  Amaranthus californicus Lowell Ahart 1990-9-30 6602 Butte Along the edges of Canyon Creek, below the high water line of Lake Oroville, below the Canyon Creek Bridge across Lake Oroville. 228 Comment
  CHSC51268  Ammannia coccinea Lowell Ahart 1990-10-5 6632 Butte Growing below the high water line of Lake Oroville, about 1/8 mile south-west of the Enterprise Boat Launch Area, about 3/4 mile north-west of the Enterprise Bridge across Lake Oroville. 228 Comment
  CHSC51272  Phytolacca americana Lowell Ahart 1990-9-21 6598 Butte Peter Ahart Ranch, about 2 1/2 miles north and 1/4 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC51274  Persicaria punctata Lowell Ahart 1990-10-3 6620 Butte On the bottom of the East Fork of Canyon Creek, below the high water line of Lake Oroville, about 1/4 mile north-east of the Canyon Creek Bridge across Lake Oroville. 259 Comment
  CHSC54343  Allophyllum divaricatum Lowell Ahart 1991-6-22 6662 Butte Below the high water line of Lake Oroville, north of Springtown Road, Lake Oroville. 243 Comment
  CHSC54351  Piperia michaelii Lowell Ahart 1991-5-12 6653 Butte Peter Ahart Ranch, about 1 1/4 miles north and 2 1/2 miles east of Honcut, about 12 miles south-east of Oroville. 48 Comment
  CHSC55062  Phyla nodiflora var. rosea Lowell Ahart 1991-9-14 6725 Butte On the south end of the dam at the large reservoir, Joie Osgood Ranch, about 2 miles east of Honcut. 45 Comment
  CHSC55064  Goodyera oblongifolia Lowell Ahart 1991-9-19 6728 Butte Near where the two branches of Wildcat Creek come together, about 2 miles north-west of Four Trees, about 2 miles west of the Oroville-Quincy Highway, about 2 miles north-east of Coyote Gap. 1219 Comment
  CHSC55252  Persicaria hydropiper Lowell Ahart 1991-9-14 6714 Butte On the sides of a large reservoir, Joie Osgood Ranch, about 2 miles east of Honcut. 45 Comment
  CHSC58252  Erigeron foliosus var. hartwegii Lowell Ahart 1992-5-9 6756 Butte Along Oregon Gulch, Lake Oroville Recreation Area, about 1 1/4 miles west of Oroville Dam. 91 Comment
  CHSC58254  Madia elegans subsp. vernalis Lowell Ahart 1992-5-9 6759 Butte North of the road, on the north side of the Thermalito Diversion Pool, Lake Oroville Recreation Area, about 2 (air) miles north of Oroville. 76 Comment
  CHSC58887  Helenium puberulum Lowell Ahart 1992-7-23 6824 Butte On the north side of the Thermalito Diversion Pool, near Longs Bar Monument, Lake Oroville Recreation Area, about 2 miles west of Oroville Dam. 76 Comment
  CHSC58902  Stellaria crispa Lowell Ahart 1992-6-26 6782 Butte On the east side of Rogers Cow Camp, about 1/2 mile north-west of Merrimac. 1219 Comment
  CHSC58904  Stellaria obtusa Lowell Ahart 1992-7-21 6817 Butte Along a small wash and in meadows, north-west of a snow lake, on the south side of Coon Hollow, about 2 (air) miles north-east of Philbrook Reservoir. 1737 Comment
  CHSC58959  Diplacus leptaleus Lowell Ahart 1992-7-29 6870 Butte About 1 mile east of the Carr Mine, about 1/2 mile north-west of Lotts Lake. 1828 Comment
  CHSC59012  Eleocharis acicularis Lowell Ahart 1992-8-2 6906 Butte Bottom of Concow Creek, in Concow Meadow, about 3 (air) miles north-east of Concow Reservoir. 1097 Comment
  CHSC59014  Rhynchospora capitellata Lowell Ahart 1992-8-2 6901 Butte On the west side of Concow Meadow, about 3 (air) miles north-east of Concow Reservoir. 1097 Comment
  CHSC60945  Polystichum imbricans subsp. imbricans Lowell Ahart 1993-6-26 7036 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC60951  Torilis arvensis subsp. purpurea Lowell Ahart 1993-6-16 6969 Butte On the west side of a small meadow, south-west of the intersection of Black Bart Road and Forbestown Road, about 3 1/2 (air) miles south-west of Forbestown. 609 Comment
  CHSC60963  Stephanomeria lactucina Lowell Ahart 1993-6-26 7027 Butte On the west side of the dirt road, Mooreville Ridge, about 1 mile west of the Lost Creek Reservoir. 1188 Comment
  CHSC60965  Cryptantha affinis Lowell Ahart 1993-6-26 7018 Butte On the east side of the dirt road, about 1 mile west of the Lost Creek Reservoir. 1188 Comment
  CHSC60996  Rotala ramosior Lowell Ahart 1993-6-13 6959 Butte On the bottom of a deep wash, Peter Ahart Ranch, about 2 1/2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 33 Comment
  CHSC61301  Stephanomeria lactucina Lowell Ahart 1993-7-22 7071 Butte On the west side of the dirt road, about 1/4 mile north-west of Camp 18, about 5 (air) miles north-east of Feather Falls. 1219 Comment
  CHSC61315  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 1993-7-22 7081 Butte Along Fall River, west of the bridge across Fall River, about 6 (air) miles north-east of Feather Falls. 1036 Comment
  CHSC61329  Chimaphila menziesii Lowell Ahart 1993-7-29 7129 Butte About 1/8 mile south-west of the Snow Mine, about 2 1/2 miles east of Bald Mountain, about 6 1/2 miles north-east of Stirling City. 1463 Comment
  CHSC61336  Diplacus mephiticus Lowell Ahart 1993-7-31 7146 Butte On a log landing east of the dirt riad that leads to Ramsey Bar, about 1/2 mile north of Ramsey Bar. 1371 Comment
  CHSC61528  Achnatherum occidentale subsp. californicum Lowell Ahart 1993-6-26 7019 Butte On the east side of the dirt road, Mooreville Ridge, about 1 mile west of the Lost Creek Reservoir. 1188 Comment
  CHSC63248  Lathyrus hirsutus Lowell Ahart 1994-6-6 7311 Butte On the bottom of a swale, north of the corral, on the north side of the bend in Cottonwood Road, about 1/4 mile west of Highway 70, about 3 1/2 miles (air) north-west of Oroville. 57 Comment
  CHSC63720  Darlingtonia californica Lowell Ahart 1994-9-3 7547 Butte In open meadow, near the east side of the meadow, ... Field redacted by CHSC, contact the data manager for more information 1371 Comment
  CHSC65187  Eragrostis hypnoides Lowell Ahart 1995-8-19 7614 Butte East side of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 3/4 miles east of Honcut, about 12 miles south-east of Oroville. 36 Comment
  CHSC65326  Laennecia coulteri Lowell Ahart 1995-10-4 7678 Butte Rice field, Peter Ahart Ranch, about 2 miles north and 1/4 mile easata of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC65339  Trifolium monanthum subsp. monanthum Lowell Ahart 1995-10-3 7666 Butte Along the south side of Butte Creek, about 50 yards east of the bridge across Butte Creek, in Butte Creek House Meadow, about 2 1/2 miles (air) north-east of Snag Lake. 1767 Comment
  CHSC68907  Carex amplifolia Lowell Ahart 1997-7-11 7749 Butte Edges of a small stream from springs, north of the dirt road, southeast of Cold Creek, about 2 miles (air) southwest of Bald Mountain, about 9 miles by road from Stirling City, or about 2 miles (air) northeast of Stirling City. 1219 Comment
  CHSC69039  Hieracium albiflorum Lowell Ahart 1997-8-1 7779 Butte Near some small streamlets of Little Kimshew Creek, in Snow Meadow, about 1/4 mile east of Table Mountain, about 8 miles (air) northeast of Stirling City. 1524 Comment
  CHSC69109  Phytolacca americana Lowell Ahart 1997-7-31 7758 Butte On the east side of the native plant garden, Durham Elementary School, Durham. 57 Comment
  CHSC69121  Elymus elymoides subsp. californicus Lowell Ahart 1997-8-1 7782 Butte Near some small streamlets of Little Kimshew Creek, in Snow Meadow, about 1/4 mile east of Table Mountain, about 8 miles (air) northeast of Stirling City. 1524 Comment
  CHSC69427  Eriogonum umbellatum var. ahartii Lowel Ahart 1997-8-19 7870 Butte On the south side of Lumpkin Ridge Road, about 1 1/2 miles east of Camp 18, about 8 miles (air) northeast of Feather Falls. 1280 Comment
  CHSC69712  Athyrium filix-femina var. cyclosorum Lowell Ahart 1997-10-20 7930 Butte On the west side of the sharp bend in the South Fork of the Feather River, about 1/4 mile north of the bridge across the river, about 3/4 mile north of Golden Trout Crossing, 3 miles (air) northwest of Sly Creek Reservoir Dam. 914 Comment
  CHSC69714  Leontodon saxatilis subsp. longirostris Lowell Ahart 1997-10-20 7923 Butte On the west side of the sharp bend in the South Fork of the Feather River, about 1/4 mile north of the bridge across the river, about 3/4 mile north of Golden Trout Crossing, 3 miles (air) northwest of Sly Creek Reservoir Dam. 914 Comment
  CHSC71104  Juncus bufonius var. congestus Lowell Ahart 1998-5-2 7957 Butte Graded north side of Evens Reimer Road, about 1/4 mile east of Pennington Road, about 5 miles (air) southwest of Gridley. 21 Comment
  CHSC71176  Trifolium dubium Lowell Ahart 1998-6-9 7979 Butte On the side of the lone oak tree, about 50 yards northwest of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CHSC71187  Polygonum californicum Lowell Ahart 1998-6-9 7982 Butte On dry dark rocky bare basalt, west of Cherokee Road, about 50 feet southwest of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CHSC71257  Centaurium tenuiflorum Lowell Ahart 1998-7-1 8025 Butte About 100 yards south of a east west fence, about 5/8 mile north of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CHSC72249  Lagophylla glandulosa Lowell Ahart 1998-9-11 8059 Butte Near a wash, about 1/4 mile west of the cattle chute on the west side of Cherokee Road, North Table Mountain, about 7 (air) miles north of Oroville. 388 Comment
  CHSC75301  Galium murale Lowell Ahart 1999-5-24 8077 Butte Along the sides of the museum, Butte County Historical Society museum, 2335 Baldwin Avenue, Oroville. 60 Comment
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Jan 17 2007
  CHSC75336  Hainardia cylindrica Lowell Ahart 1999-5-21 8067 Butte In a pasture, 50 yards north of Evans Reimer Road, about 7/8 mile east of Pennington Road, about 5 miles (air) southwest of Gridley. 21 Comment
  CHSC75998  Mentha pulegium Lowell Ahart; Vernon Oswald 1999-8-13 8164 Butte Along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CHSC76000  Rotala ramosior Lowell Ahart; Vernon H. Oswald 1999-8-13 8170 Butte Large disturbed area along the east side of the Sacramento River, northwest of Parrott Landing, about 1mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CHSC76002  Ludwigia palustris Lowell Ahart 1999-8-22 8186 Butte Along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CHSC76004  Persicaria lapathifolia Lowell Ahart; Vernon H. Oswald 1999-8-13 8174 Butte Large disturbed area along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CHSC77980  Pseudognaphalium stramineum Lowell Ahart 2000-5-13 8346 Butte On the margin of the Thermalito Afterbay, on the south side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 42 Comment
  CHSC77982  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2000-5-13 8350 Butte On the margin of the Thermalito Afterbay, on the south side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 42 Comment
  CHSC77984  Triodanis biflora Lowell Ahart 2000-5-13 8344 Butte On the margin of the Thermalito Afterbay, on the south side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 42 Comment
  CHSC78118  Calycadenia oppositifolia Lowell Ahart 2000-5-31 8415 Butte A serpentine ridge, about 200 yards east of where Kunkle Creek enters Lake Oroville, east of the Kunkle Power House, about 3 miles southeast of Paradise. 335 Comment
  CHSC78183  Eleocharis bolanderi Lowell Ahart 2000-5-30 8410 Butte Near seeps, about 1/4 mile northeast of Kunkle Reservoir, east of the Pentz Magalia Road, about 2 miles south of Paradise. 548 Comment
  CHSC78191  Eleocharis engelmannii Lowell Ahart 2000-5-27 8406 Butte South margin of the boggy area in a large spring like area, west of the lone oak tree, west of the cow chute and the large parking area on the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CHSC78286  Eleocharis acicularis var. occidentalis Lowell Ahart 2000-6-17 8487 Butte In a large spring like area, west of the lone oak tree, west of the cow chute and the large parking area on the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CHSC78329  Juncus bufonius var. bufonius Lowell Ahart 2000-6-29 8533 Butte Along the west side of Concow Road at Flea Meadow, about 1/2 mile west of Flea Mountain, about 3 1/2 miles (air) north of Concow Reservoir, about 5 miles (air) east of Magalia. 1036 Comment
  CHSC78336  Juncus ensifolius Lowell Ahart 2000-6-27 8523 Butte North part of Big Bald Rock, area is about 100 yards south and west of the north and east forest line, about 3 miles (air) east of Madrone Lake, about 12 miles (air) northeast of Oroville. 963 Comment
  CHSC78735  Eleocharis acicularis var. occidentalis Lowell Ahart 2000-9-15 8690 Butte North of a large pond on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CHSC80516  Arabidopsis thaliana Lowell Ahart 2001-3-22 8719 Butte On the east side of a small swale and very near the north fence, about 100 yards east of the Olive Orchard and Palermo Honcut Highway, Peter Ahart Ranch, about 11 miles south of Oroville. 32 Comment
  CHSC80527  Trifolium bifidum var. decipiens Lowell Ahart 2001-4-15 8724 Butte On the south side of the second dirt road south and then east of the large pump, on the south side of Evans-Reimer Road, about 1 mile east of Pennington Road, Gray Lodge Waterfowl Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  CHSC80632  Euonymus occidentalis var. occidentalis Lowell Ahart; Vernon H. Oswald 2001-6-18 8879 Butte On the east side of the dirt road and east of the bridge across the West Branch of the Feather River, about 2 miles (air) southeast of Stirling City. 609 Comment
  CHSC82230  Veronica peregrina subsp. xalapensis Lowell Ahart 2002-4-14 9485 Butte Area between the Railroad and the Midway Road, 50 yards north of Nelson Dlavo Road, in Nelson. 36 Comment
  CHSC82232  Limosella aquatica Lowell Ahart 2002-4-14 9483 Butte Area between the Railroad and the Midway Road, 50 yards south of Nelson Dlavo Road, in Nelson. 36 Comment
  CHSC82384  Rosa Lowell Ahart 2002-6-7 9709 Butte On the north banks of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 36 Comment
  CHSC82418  Gastridium phleoides Lowell Ahart 2002-5-7 9639 Butte High banks of a pond, at the beginning of a southeast branch of Schirmer Ravine, about 50 yards east of the pond on the east side of Cherokee Road, North Table Mountain, about 4 miles (air) north of Oroville. 228 Comment
  CHSC82483  Vulpia microstachys var. pauciflora Lowell Ahart; John Dittes, Josephine Guardino 2002-6-21 9755 Butte On the south side of a poor dirt road, Watson Ridge, about 2 miles (air) northeast of Bald Rock Dome, about 5 miles (air) north of Feather Falls (the town). Comment
  CHSC82485  Madia exigua Lowell Ahart; John Dittes, Josephine Guardino 2002-6-21 9749 Butte On the south side of a poor dirt road, Watson Ridge, about 2 miles (air) northeast of Bald Rock Dome, about 5 miles (air) north of Feather Falls (the town). Comment
  CHSC82491  Arceuthobium campylopodum Lowell Ahart; John Dittes, Josephine Guardino 2002-6-21 9753 Butte On the south side of a poor dirt road, Watson Ridge, about 2 miles (air) northeast of Bald Rock Dome, about 5 miles (air) north of Feather Falls (the town). Comment
  CHSC82642  Chondrilla juncea Lowell Ahart 2002-7-18 9875 Butte On the west edge of Lumpkin Road, about 1/8 mile south of the Enterprise Bridge across Lake Oroville, about 11 1/2 miles (air) northeast of Oroville. Comment
  CHSC83017  Ammannia coccinea Lowell Ahart 2002-10-17 10002 Butte Bottom of a wash, between the gentle hills below the high water line of Lake Oroville, about 1 1/2 miles south of Highway 162 (Oroville Quincy Highway), about 3 miles (air) northeast of Oroville Dam. 227 Comment
  CHSC83090  Kickxia elatine Lowell Ahart 2002-10-17 9993 Butte On the gentle hills below the high water line of Lake Oroville, about 1 1/2 miles south of Highway 162 (Oroville Quincy Highway), about 3 miles (air) northeast of Oroville Dam. 227 Comment
  CHSC84030  Persicaria amphibia Lowell Ahart 2003-6-16 10287 Butte In a ditch on the west side of Wickman Road, about 1 mile south of Richvale West Road, about 1 1/2 miles (air) southwest of Richvale. 28 Comment
  CHSC84159  Monardella sheltonii Lowell Ahart 2003-6-30 10332 Butte Near the water pipe where it comes out of the mountain, on the north side of the Ponderosa Reservoir, about 2 miles (air) north of Forbestown. 481 Comment
  CHSC84187  Piperia elongata Lowell Ahart 2003-6-30 10323 Butte Near the small stream, on the southeast side of Ponderosa Way, about 2 1/2 miles (by road) southwest of the Ponderosa Dam, about 2 miles (air) northwest of Forbestown. 578 Comment
  CHSC84273  Alopecurus saccatus Lowell Ahart 2003-5-28 10235 Butte On the bottom of Hendricks ditch, about 1 3/4 miles west of the iron gate and fence, west of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 271 Comment
  CHSC84326  Lagophylla glandulosa Lowell Ahart 2003-8-3 10465 Butte On the west side of North Honcut Creek, about 2 1/2 miles north and 2 2/3 miles east of Honcut, about 12 miles (air) southeast of Oroville. 60 Comment
  CHSC84394  Perideridia bacigalupii Lowell Ahart 2003-8-6 10474 Butte In the road gutter on the west side of Encina Grande Road, about 50 yards southeast of Truman Journey Way, about 2 miles (air) southeast of of Bloomer Hill, about 6 miles (air) northeast of Oroville Dam. Along the road for the next 3 miles. 609 Comment
  CHSC84408  Heterocodon rariflorum Lowell Ahart 2003-7-30 10460 Butte On the north side of Bean Creek Road, about 1/2 mile southeast of Little Bald Rock, about 2 1/2 miles (air) southeast of Brush Creek. 1000 Comment
  CHSC87200  Cardamine oligosperma Lowell Ahart 2004-3-26 10704 Butte On the south edge of the paved road, Hurleton Road, north of Forbestown Road, about 1/4 mile north of the Oak Grove Cemetery, about 2 miles southeast of Lake Wyandotte, about 10 miles east of Oroville. 502 Comment
  CHSC87950  Bromus orcuttianus Lowell Ahart 2004-6-22 11123 Butte On the east side of Doe Mill Road, about 1 mile southeast of the bridge across Butte Creek, about 2 1/2 miles (air) southeast of Forest Ranch, about 5 miles (air) southwest of Stirling City. 713 Comment
  CHSC87952  Melica harfordii Lowell Ahart 2004-6-22 11112 Butte On the east margin of a gravel road, road leads to Butte Creek, south of Doe Mill Road, about 1/8 mile southwest of the bridge across Butte Creek, about 2 miles (air) southeast of Forest Ranch, about 5 miles (air) west of Stirling City. 692 Comment
  CHSC87954  Cystopteris fragilis Lowell Ahart 2004-6-22 11116 Butte On the east side of Doe Mill Road, about 1/4 mile southeast of the bridge across Butte Creek, about 2 1/4 miles (air) southeast of Forest Ranch, about 5 miles (air) west of Stirling City. 628 Comment
  CHSC88161  Triantha occidentalis subsp. occidentalis Lowell Ahart 2004-8-2 11322 Butte Large bog, the start of a small branch of Keyser Creek, on the south side of the dirt County Road, about 1/4 mile (air) east of Bald Mountain, about 4 miles (air) northeast of Stirling City. 1689 Comment
  CHSC88177  Epilobium densiflorum Lowell Ahart 2004-7-20 11287 Butte On the north side of a deep wash, about 200 yards north of the home, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles (air) south of Oroville. 30 Comment
  CHSC90481  Plantago elongata Lowell Ahart; Paul Maslin, John Dittes 2005-3-17 11663 Butte Big Chico Creek Ecological Reserve. Burned area, about 50 yards south of the fence, on the east side of the very poor dirt road, about 1/8 mile northwest of the Indian Cave, about 3/4 mile west of Big Chico Creek, about 4 1/2 miles (air) northeast of Chico. 481 Comment
  CHSC90980  Triteleia hyacinthina Lowell Ahart 2005-5-11 11796 Butte On uplands near vernal pools, south part of North Table Mountain, about 200 yards northwest of the poor dirt road off of Cherokee Road, about 200 yards south of the rim into Beatson Hollow, about 7 miles (air) north of Oroville. 358 Comment
  CHSC91468  Aegilops triuncialis Lowell Ahart 2005-7-12 12142 Butte Poor road on the south side of Forest Road 21N40, about 100 yards west of Encina Grade Road (Bloomer Hill Road) (Forest Road 21N39). about 3/4 mile (air) west of Bloomer Hill, about 6 miles west of Oroville Quincy Highway. 822 Comment
  CHSC91472  Croton setiger Lowell Ahart 2005-7-13 12153 Butte About 100 yards east of the intersection of Forbestown Road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown, about 12 miles (air) east of Oroville. 759 Comment
  CHSC92060  Limnophila X ludoviciana Lowell Ahart 2005-8-28 12336 Butte In a small ditch, on the Rice Experiment Station, between the Main Ditch and Stine Lateral, on the north side of Hamilton Road, about 1/4 mile east of Riceton Road. 28 Comment
  CHSC92062  Solidago velutina subsp. californica Lowell Ahart 2005-8-19 12335 Butte In a farmed field, along a small drainage, about 1/8 mile west of Dunstone Drive, about 1 1/2 miles north and 2 7/8 miles east of Honcut, about 12 miles (air) southeast of Oroville. 54 Comment
  CHSC92506  Senecio vulgaris Lowell Ahart 2005-12-11 12510 Butte On the sides of small ditches, on the Rice Experiment Station, between the Main Ditch and Stine Lateral, on the north side of Hamilton Road, about 1/4 mile east of Riceton Highway, about 2 1/4 miles (air) east of Biggs. 30 Comment
  CHSC92531  Avena barbata Lowell Ahart 2005-12-11 12514 Butte On the sides of small ditches, on the Rice Experiment Station, between the Main Ditch and Stine Lateral, on the north side of Hamilton Road, about 1/4 mile east of Riceton Highway, about 2 1/4 miles (air) east of Biggs. 30 Comment
  CHSC93352  Delphinium variegatum subsp. variegatum Lowell Ahart 2006-5-3 12568 Butte Along a small stream, about 1/2 mile northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 386 Comment
  CHSC93354  Agoseris heterophylla var. heterophylla Lowell Ahart 2006-4-28 12543 Butte On the east side of the dirt road, about 1/4 mile northwest of the Iron Gate along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 313 Comment
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Jan 19 2011
  CHSC93453  Vulpia microstachys var. pauciflora Lowell Ahart 2006-5-10 12620 Butte Road cut bank, on the north side of the poor dirt road, Bardees Bar Road, about 100 yards north of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 1/2 miles (air) southwest of Pulga. 354 Comment
  CHSC93455  Epilobium minutum Lowell Ahart 2006-5-10 12623 Butte Road cut bank, on the north side of the poor dirt road, Bardees Bar Road, about 100 yards north of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 1/2 miles (air) southwest of Pulga. 385 Comment
  CHSC93477  Trifolium variegatum var. variegatum Lowell Ahart 2006-5-3 12561 Butte Grassy area, about 50 yards south of the fence, about 1 mile northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 391 Comment
  CHSC93486  Delphinium patens subsp. patens Lowell Ahart 2006-5-8 12610 Butte North of Phantom Falls, about 3/4 mile northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 384 Comment
  CHSC93508  Erythranthe glaucescens Lowell Ahart 2006-5-10 12614 Butte Road cut bank, on the north side of the poor dirt road, Bardees Bar Road, about 100 yards north of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 1/2 miles (air) southwest of Pulga. 354 Comment
  CHSC93860  Centaurea melitensis Lowell Ahart 2006-6-9 12659 Butte On the north side of Bardees Bar Road, north of the small stream, on the east side of the large stream, about 1/8 mile northwest of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga. 385 Comment
  CHSC93862  Madia exigua Lowell Ahart 2006-6-9 12650 Butte On the east side of Bardees Bar Road, south of the small stream, about 1/4 mile southwest of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga. 403 Comment
  CHSC93864  Cryptantha intermedia Lowell Ahart 2006-6-9 12656 Butte On the north side of Bardees Bar Road, east of the large stream, about 1/10 mile north of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga. 354 Comment
  CHSC94126  Achnatherum stillmanii Lowell Ahart 2006-6-24 12852 Butte On the east side of the dirt road (Ponderosa Way), on Cohasset Ridge, about 3 1/2 miles (air) northeast of Cohasset. 1130 Comment
  CHSC94240  Sedum spathulifolium Lowell Ahart 2006-5-10 12627 Butte Road bank, on the west side of the dirt road, Bardees Bar Road, south of the small stream, about 1/4 mile southwest of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga. 405 Comment
  CHSC94242  Streptanthus longisiliquus Lowell Ahart 2006-7-16 12958 A Butte Near of the open mudflow area, on the north side of Humboldt Road, about 1 1/2 miles (air) southwest of Butte Meadows. 1435 Comment
  CHSC94244  Navarretia divaricata subsp. divaricata Lowell Ahart 2006-7-16 13002 Butte On the west side of the poor dirt road, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1524 Comment
  CHSC94262  Cerastium fontanum subsp. vulgare Lowell Ahart 2006-7-16 12983 Butte In the west edge of a large wet meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1569 Comment
  CHSC94264  Equisetum laevigatum Lowell Ahart 2006-7-16 12984 Butte In the west edge of a large wet meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1569 Comment
  CHSC94278  Sisyrinchium bellum Lowell Ahart 2006-7-16 12998 Butte On the northwest edge of Willow Creek, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1515 Comment
  CHSC94300  Carex simulata Lowell Ahart 2006-6-16 13011 Butte In the west edge of a large wet meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1569 Comment
  CHSC94376  Marsilea vestita subsp. vestita Lowell Ahart 2006-8-5 13088 Butte On the bottom of a large wash, Peter Ahart Ranch, about 1 1/2 miles north and 250 yards east of Honcut, about 12 miles south of Oroville. 30 Comment
  CHSC94498  Spiranthes porrifolia Lowell Ahart 2006-8-15 13183 Butte Near the center of a large open meadow with bogs, about 70 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1569 Comment
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Sep 6 2011
  CHSC94647  Cyperus flavescens Lowell Ahart 2006-9-28 13378 Butte On the east side of the North Fork of the Feather River, on the west side of Highway 70, about 50 yards southwest of the Shady Rest Area south of the Arch Rock Tunnel. 445 Comment
  CHSC94789  Zeltnera venusta Lowell Ahart 2006-10-8 13432 Butte Mud flat, near a large gravel bar, east side of the North Fork of the Feather River, just east of where the river flows into a pool, on the west side of Highway 70, about 1/2 mile north of the Cresta Power House. 609 Comment
  CHSC96799  Quercus kelloggii Lowell Ahart 2007-5-16 13890 Butte On the east side of Jordan Hill Road, about 1/10 mile northwest of the bridge across Concow Creek, about 1 1/2 miles (air) southwest of Concow Reservoir. 436 Comment
  CHSC96800  Clarkia concinna subsp. concinna Lowell Ahart 2007-5-22 13913 Butte About 1/8 mile south of Bald Rock Dome, on the west side of the Dome Trail, trail leads to the Middle Fork of the Feather River, about a mile from the trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Big Bald Rock, about 16 miles (air) northeast of Oroville. 844 Comment
  CHSC96802  Sisyrinchium bellum Lowell Ahart 2007-4-30 13706 Butte On the west side of Jordan Hill Road, about 1 1/2 miles northwest of Concow Creek, about 1 1/2 miles west of Concow Reservoir. 358 Comment
  CHSC96804  Comandra umbellata subsp. californica Lowell Ahart 2007-4-30 13713 Butte On the west side of Jordan Hill Road, about 2 1/2 miles northwest of Concow Creek, about 2 1/2 miles northwest of Concow Reservoir. 618 Comment
  CHSC96887  Rosa gymnocarpa Lowell Ahart 2007-6-12 14067 Butte North of the parking area at Big Bald Rock, about 14 miles (air) northeast of Oroville. 893 Comment
  CHSC96902  Eleocharis engelmannii Lowell Ahart 2006-7-27 14395 Butte On the south strand of the Thermalito Afterbay, about 200 yards north of Highway 162, about 5 miles west of the intersection of Highway 162 and Highway 70, about 5 1/2 miles (air) west of Oroville. 36 Comment
  CHSC96904  Eriogonum roseum Lowell Ahart 2007-7-24 14390 Butte About 200 yards west of the high gravel road (at turn, before washout), about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. 35 Comment
  CHSC96959  Bulbostylis capillaris Lowell Ahart 2007-6-12 14073 Butte Along swales, in a large bare granite opening (about an acre in size), northeast of Little Bald Rock, about 300 yards east of Bean Creek Road, about 16 miles (air) northeast of Oroville. 1009 Comment
  CHSC97123  Juncus usitatus Lowell Ahart 2007-7-5 14250 Butte On the south side a drainage ditch, on the north side of Evans Reimer Road, about 1 1/4 miles east of Pennington Road, about 4 3/4 miles (air) southwest of Gridley. 22 Comment
  CHSC97142  Trifolium variegatum Lowell Ahart 2006-9-13 13332 Butte South edge of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville. 431 Comment
  CHSC97239  Verbascum virgatum Lowell Ahart 2007-6-3 13980 Butte On both sides of Highway 70, about 1/4 mile northeast of the Poe Dam on the North Fork of the Feather River. 486 Comment
  CHSC97697  Solanum americanum Lowell Ahart 2007-10-31 14521 Butte West of the official parking area, strand of Lake Oroville, Foreman Creek Area, about 1 mile south of Highway 162 (Oroville Quincy Road), about 7 miles (air) northeast of Oroville. 224 Comment
  CHSC97776  Eragrostis hypnoides Lowell Ahart 2007-10-31 14522 Butte West of the official parking area, strand of Lake Oroville, Foreman Creek Area, about 1 mile south of Highway 162 (Oroville Quincy Road), about 7 miles (air) northeast of Oroville. 224 Comment
  CHSC98943  Festuca subulata Lowell Ahart 2008-6-2 14807 Butte Shaded road cut, on the south side of Ponderosa Way, about 1 mile (air) southwest of the Ponderosa Dam, about 2 1/4 miles (air) northwest of Forbestown. 670 Comment
  CHSC98945  Castilleja attenuata Lowell Ahart 2008-5-8 14727 Butte Below the high water line of Lake Oroville, about 50 yards south of the poor parking area, about 50 yards east of McCabe Creek, about 3/4 mile southwest of the Enterprise Bridge, about 11 miles (air) east of Oroville. 259 Comment
  CHSC98963  Trifolium willdenovii Lowell Ahart 2008-5-12 14749 Butte Below the high water line of Lake Oroville, on the east side of Sucker Creek, about 100 yards north of where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile west of the Ponderosa Dam. 258 Comment
  CHSC98996  Erythranthe nasuta Lowell Ahart 2008-5-21 14774 -A Butte Damp to dry bare granite soil, below the high water line of Lake Oroville, on the north and south side of the South Fork of the Feather River, where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 246 Comment
  CHSC99311  Moenchia erecta subsp. erecta Lowell Ahart 2008-5-30 14800 Butte Mowed parking area at the cemetery, about 300 yards north of Oregon Gulch, about 10 miles (air) northeast of Oroville. 331 Comment
  CHSC99476  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2008-6-13 14824 Butte Depression in a small meadow, bottom of an old gold mined area, about 350 yards southwest of the cemetery, about 50 yards north of Oregon gulch, about 10 miles (air) northeast of Oroville. 305 Comment
  CHSC99487  Rumex salicifolius var. salicifolius Lowell Ahart 2008-6-13 14832 Butte Bottom of Oregon Gulch, about 50 yards west of the road culvert across Oregon Gulch, bottom of an old gold mined area, about 150 yards south of the cemetery, about 10 miles (air) northeast of Oroville. 305 Comment
  CHSC99748  Juncus nevadensis var. nevadensis Lowell Ahart 2008-7-23 15153 Butte On the west side of McCabe Creek, below the high water line of Lake Oroville, about 100 yards southwest of the poor parking area, about 3/4 mile southwest of the Enterprise Bridge, about 11 miles (air) east of Oroville. 243 Comment
  HSC100722  Rhamnus ilicifolia Lowell Ahart 2009-6-30 15963 Butte Along Guardian Rock Trail, 5/8 (air) mi. SW of intersection of Ten Mile House Rd. and Hwy. 32, Upper Bidwell Park, 10 mi. NE of Chico. 386 Comment
  HSC100743  Cuscuta californica var. breviflora Lowell Ahart 2010-9-21 17232 Butte S side of a poor dirt road, 1 (air) mi. NE of Jones Meadow, 2.5 (air) mi. SE of Philbrook Reservoir. 1900 Comment
  HSC100796  Dittrichia graveolens Lowell Ahart 2008-11-8 15445 Butte Parking area on the W side of the Midway, W of the intersection of Midway and East Park Ave., Chico. 61 Comment
  HSC103922  Calycadenia multiglandulosa L. Ahart 2013-7-1 18817 Butte About 3.25 mi. (air) SW of Forbestown; ~150 yds, E of the intersection of Forbestown Rd. and Black Bart Rd. 738 Comment
  HSC92442  Hordeum marinum subsp. gussoneanum L. Ahart 1975-5-12 757 Butte Peter Ahart Ranch, about 1 1/2 mi. N and 1 mi. E of Honcut. 12 mi. S of Oroville. Comment
  HSC96978  Melilotus indicus L. Ahart 2005-5-2 11772 Butte E side of the Sacramento River, NW of Parrott Landing, about 1 mi. SE of Ord Ferry, about 2 mi. SE of Ordbend, about 12 mi. SW of Chico. 26 Comment
  HSC97042  Bidens frondosa L. Ahart 2006-9-11 13274 Butte S edge of the N Fork of the Feather River, N side of Highway 70, about 1/8 miles W of the Poe Dam, about 3/4 mile NE of Pulga, about 21 miles (air) NE of Oroville 432 Comment
  HSC97191  Bromus diandrus L. Ahart 2005-4-14 11707 Butte Gridley, N of Spruce St., S of railroad bridge. 28 Comment
  JEPS102307  Sinapis alba Lowell Ahart 2001-4-15 8723 Butte 4 air miles SW of Gridley (N side of the dirt road E of the large pump, S side of Evans-Reimer Road, 1 mi E of Pennington Road, Gray Lodge Waterfowl Management Area) 22 Comment
  JEPS102311  Limosella acaulis Lowell Ahart 2001-5-3 8736 Butte 4 air miles SE of Gridley ( one of the large holding ponds on S side of Evans-Reimer Rd, 1 mi E of Pennigton Rd, Gray Lodge Waterfowl Management Area); ; <coords. cont.: NW corner> 22 Comment
  JEPS102338  Brassica napus Lowell Ahart 2001-5-10 8739 Butte 4 air miles SW of Gridley (on sides of dirt rd E of the large pump, on S side of Evans-Reimer Rd, 1 mi E of Pennington Rd, Gray Lodge Waterfowl Management Area) 22 Comment
  JEPS102592  Chenopodium ambrosioides var. suffruticosum Lowell Ahart 2001-10-10 9413 Butte On the north side of Gridley Road, about 100 yards SE of the bridge across the Feather River, about 3 1/2 miles (air) east of Gridley. 27 Comment
  JEPS103295  Sherardia arvensis Lowell Ahart 2002-5-7 9643 Butte High banks of a pond, at the beginning of a SE branch of Schirmer Ravine, ca 50 yards E of the pond on the E side of Cherokee Road, North Table Mountain, ca 4 miles (air) N of Oroville. 228 Comment
  JEPS103329  Digitaria sanguinalis Lowell Ahart 2002-9-7 9926 Butte On the E side of Cherokee Road, N of the Thermalito Diversion Canal, on the W side of the water purification pond, ca 1 mile N of Oroville. 130 Comment
  JEPS103372  Trifolium fucatum Lowell Ahart 2002-4-15 9489 Butte On a canal bank, on the W side of Faris Road, 3 miles W of West Biggs Gridley Road, ca 3 miles (air) SW of Biggs. 24 Comment
  JEPS103453  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2002-10-17 9988 Butte On the hills below the high water line of Lake Oroville, ca 1 1/2 miles S of Highway 162 (Oroville Quincy Highway), ca 3 miles (air) NE of Oroville Dam. 227 Comment
  JEPS103460  Heterotheca oregona var. rudis Lowell Ahart 2002-9-27 9940 Butte Along the E side of the Sacramento River, NW of Parrott Landing, ca 1 mile SE of Ord Ferry, ca 2 miles SE of Ordbend, ca 12 miles (air) SW of Chico. 32 Comment
  JEPS103602  Capsella bursa-pastoris Lowell Ahart 2002-3-2 9415 Butte Along the sides of a dirt road by a rice field, W of the Midway, ca 1 mile N of Richvale. 30 Comment
  JEPS104171  Triodanis perfoliata Lowell Ahart 2003-5-27 10219 Butte East face of cliff, just above the Iahi Trail on the water ditch, just south of a small drainage, ca 150 yardswest of Bear Hole, just n of Parking Area J, Upper Bidwell Park, ca 3 1/4 mi e of Manzanita Avenue, Chico. 106 Comment
  JEPS104187  Pinus jeffreyi Lowell Ahart 2003-10-17 10641 Butte In rock pile ca 25 yd n of Humboldt Peak, ca 1/2 mi e of Humboldt Summit, ca 8 mi (air) ne of Butte Meadows. 2154 Comment
  JEPS104193  Sibara virginica Lowell Ahart 2003-5-9 10123 Butte Along the sw corner of a prune orchard, on the n side of Evans Reimer Rd, ca 3/4 mi w of Block Rd, ca 3 mi (air) sw of Gridley. 24 Comment
  JEPS104260  Juncus leiospermus var. leiospermus Lowell Ahart 2003-5-28 10230 Butte Edges of a large vernal pool, ca 100 feet w of Hendricks ditch, ca 1 3/4 mi nw of the iron gate and fence, nw of Cherokee Rd, North Table Mountain, ca 7 mi (air) n of Oroville. 271 Comment
  JEPS104339  Urospermum picroides Lowell Ahart 2003-5-14 10176 Butte On the w side of North Honcut Creek, ca 2 1/2 mi n and 2 2/3 mi e of Honcut, ca 12 mi se of Oroville. 60 Comment
  JEPS104594  Aristida dichotoma Lowell Ahart 2003-7-30 10461 Butte On the n side of Bean Creek Rd, ca 1/2 mi se of Little Bald Rock, ca 2 1/2 mi (air) se of Brush Creek. 1000 Comment
  JEPS104643  Mimulus guttatus Lowell Ahart 2003-8-6 10477 Butte On cliffs, along a small stream, on the south side of Ponderosa Way, ca 2 mi (by road) sw of the Ponderosa Dam, ca 2 mi (air) nw of Forbestown. 497 Comment
  JEPS106049  Eriogonum vimineum Lowell Ahart 2004-7-11 11224 Butte On the southeast edge of Paradise Lake, about 3/4 mile northeast of the picnic area, about 1 mile northeast of Paradise Dam, about 4 miles (air) southwest of Stirling City 814 Comment
  JEPS106164  Isoetes orcuttii Lowell Ahart 2004-4-4 10726 Butte Bottom of a vernal pool, about 1/4 mile east of Wilber Road, east of the high hill crossed by Wilber Road, cattle pasture, about 3 miles (air) west of Thermalito 48 Comment
  JEPS106315  Bromus laevipes Lowell Ahart 2004-6-22 11109 Butte On the east margin of a gravel road, road leads to Butte Creek, south of Doe Mill Road, about 1/8 mile southwest of the bridge across Butte Creek, about 2 miles (air) southeast of Forest Ranch, about 5 miles (air) west of Stirling City 692 Comment
  JEPS107355  Pectocarya pusilla Lowell Ahart, Paul Maslin, John Dittes 2005-3-17 11671 Butte Big Chico Creek Ecological Reserve. Ridge top, on the east side of a very poor dirt road, about 1/4 mile west of the Indian Cave, about 1 mile west of Big Chico Creek, about 4 1/4 miles (air) northeast of Chico 487 Comment
  JEPS107418  Coronopus didymus Lowell Ahart 2005-4-2 11685 Butte Overflow area on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico 25 Comment
  JEPS107547  Brodiaea minor Lowell Ahart 2005-7-13 12145 Butte Ditch, about 20 yards south of the intersection of Forbestown Road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown, about 12 miles (air) east of Oroville 748 Comment
  JEPS107676  Polypodium calirhiza Lowell Ahart 2005-1-20 11472 Butte On the west side of McCabe Creek, above the high water line of Lake Oroville, about 1/4 mile south of the siphon, about 3 miles (air) northeast of Hurleton, about 7 miles (air) east of Oroville Dam 304 Comment
  JEPS107699  Limnophila X ludoviciana Lowell Ahart 2005-9-13 12368 Butte On the Rice Experiment Station, between the Main Ditch and Stine Lateral, on the north side of Hamilton Road, about 1/4 mile east of Riceton Road Comment
  JEPS107778  Melilotus indicus Lowell Ahart 2005-5-2 11772 Butte Overflow area on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico 25 Comment
  JEPS108134  Melissa officinalis Lowell Ahart 2005-11-12 12483 Butte Bottom of Dark Canyon Creek, about 50 yards south of the train tunnels, west of Dark Canyon Road, about 2 1/2 miles (air) south of Highway 70 at Big Bend Road 293 Comment
  JEPS108773  Polygonum polygaloides subsp. kelloggii Lowell Ahart 2006-7-16 13006 Butte On the west side of the poor dirt road, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1524 Comment
  JEPS108850  Amsinckia intermedia Lowell Ahart 2006-5-8 12599 Butte Steep bank on the east side of a small stream, about 50 yards east of the fence and reservoir, about 2 1/4 miles west of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 296 Comment
  JEPS108927  Spergularia rubra Lowell Ahart 2005-12-11 12512 Butte On the sides of small ditches, on the Rice Experiment Station, between the Main Ditch and Stine Lateral, on the north side of Hamilton Road, about 1/4 mile east of Riceton Highway, about 2 1/4 miles (air) east of Biggs 30 Comment
  JEPS108947  Polygonum lapathifolium Lowell Ahart 2006-9-11 13289 Butte South edge of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville 431 Comment
  JEPS108958  Polygonum punctatum Lowell Ahart 2006-9-11 13291 Butte South edge of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville 431 Comment
  JEPS110088  Spiraea douglasii Lowell Ahart 2006-8-15 13184 Butte East part of a large meadow with bogs, 15 yards west of Willow Creek, about 100 yards southeast of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
  JEPS110115  Vulpia microstachys var. pauciflora Lowell Ahart 2006-5-10 12620 Butte Road cut bank, on the north side of the poor dirt road, Bardees Bar Road, about 100 yards north of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 1/2 miles (air) southwest of Pulga 354 Comment
  JEPS110154  Juncus leiospermus var. leiospermus Lowell Ahart 2006-5-8 12588 Butte Margins of a vernal pool where there is basalt shelfing, about 100 yards south of the Gray Pine on the rim of Coal Canyon, about 1 3/4 miles northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Or 354 Comment
  JEPS110180  Kyhosia bolanderi Lowell Ahart 2006-7-25 13064 Butte West of a large meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
  JEPS110267  Achnatherum stillmanii Lowell Ahart 2006-6-24 12852 Butte On the east side of the dirt road (Ponderosa Way), on Cohasset Ridge, about 3 1/2 miles (air) northeast of Cohasset 1130 Comment
  JEPS110397  Eleocharis bolanderi Lowell Ahart 2006-8-15 13181 Butte Bog, near the center of a large open meadow with bogs, about 70 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
  JEPS110468  Paspalum dilatatum Lowell Ahart 2006-9-28 13384 Butte On the east side of the North Fork of the Feather River, on the west side of Hightway 70, about 50 yards southwest of the Shady Rest Area south of the Arch Rock Tunnel 445 Comment
  JEPS113224  Selaginella wallacei Lowell Ahart 2007-5-29 13930 Butte On the east side of Bald Rock Dome, on the west side of the Dome Trail, trail leads to the Middle Fork of the Feather River, about 1 3/4 miles by the trail from the trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Bi 585 Comment
  JEPS113681  Eriogonum roseum Lowell Ahart 2007-7-24 14390 Butte About 200 yards west of the high gravel road (at turn, before washout), about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville 35 Comment
  JEPS113700  Ludwigia palustris Lowell Ahart 2007-7-8 14275 Butte On the north side of North Honcut Creek, Peter Ahart Ranch, about 3/4 miles north and 2 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville 45 Comment
  JEPS113762  Juncus usitatus Lowell Ahart 2007-7-31 14400 B Butte On the south strand of Thermalito Afterbay, about 150 yards north of Highway 162, about 5 1/4 miles west of the intersection of Highway 162 and Highway 70, about 5 3/4 miles (air) west of Oroville 34 Comment
  JEPS113809  Anthoxanthum odoratum Lowell Ahart 2007-6-1 13968 Butte In lawn, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville 30 Comment
  JEPS113849  Juncus effusus subsp. pacificus Lowell Ahart 2007-7-8 14265 Butte On the west side of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville 53 Comment
  JEPS113865  Juncus brachyphyllus Lowell Ahart 2007-6-12 14060 Butte High ridge on Big Bald Rock, about 14 miles (air) northeast of Oroville 972 Comment
  JEPS113872  Juncus ensifolius Lowell Ahart 2007-7-15 14303 Butte Along the east side of Encina Grande Road (Bloomer Hill Road), about 50 yards north of the home, about 1/4 miles (air) southwest of Bloomer Hill 808 Comment
  JEPS114587  Juncus brachyphyllus Lowell Ahart 2008-5-30 14792 Butte Northwest part of the top of Big Bald Rock, about 14 miles (air) northeast of Oroville 976 Comment
  JEPS114718  Mimulus guttatus Lowell Ahart 2008-5-21 14774 Butte Damp to dry bare granite soil, below the high water line of Lake Oroville, on the north and south side of the South Fork of the Feather River, where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam 246 Comment
  JEPS114731  Triodanis biflora Lowell Ahart 2008-5-21 14771 Butte Below the high water line of Lake Oroville, on the north and south side of the South Fork of the Feather River, where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam 246 Comment
  JEPS114776  Chondrilla juncea Lowell Ahart 2008-7-23 15151 Butte On the north side of Ponderosa Way, north of the waterfall, about 1 mile (air) southwest of the Ponderosa Dam, about 2 1/4 miles (air) northwest of Forbestown 482 Comment
  JEPS114891  Juncus kelloggii Lowell Ahart 2008-5-30 14794 Butte Dry to damp granite soil, small meadow, bottom of an old gold mined area, about 150 yeards west of the cemetery, about 150 yards north of Oregon Gulch, about 10 miles (air) northeast of Oroville 305 Comment
  JEPS114982  Elymus elymoides subsp. californicus Lowell Ahart 2008-6-13 14822 Butte Bottom of an old gold mined area, about 350 yards southwest of the cemetery, about 50 yards north of Oregon Gulch, about 10 miles (air) northeast of Oroville 305 Comment
  JEPS114998  Chenopodium pumilio Lowell Ahart 2007-11-3 14566 Butte Below the high water line of Lake Oroville, about 3/4 mile east of the Power House below Kunckle Reservoir, about 1 1/4 miles north of the Lime Saddle Campground, about 5 miles (air) southeast of Paradise 259 Comment
  JEPS115037  Juncus articulatus Lowell Ahart 2007-10-31 14511 Butte On the north side of North Honcut Creek, east of the cable across the creek, Peter Ahart Ranch, about 3/4 miles north and 2 1/4 miles east of Honcut, about 12 miles southeast of Oroville 40 Comment
  JEPS115265  Ambrosia psilostachya Lowell Ahart, John Dittes, Josephine Guardino 2008-11-8 15438 Butte On the south bank of Lindo Channel, about 50 yards west of the diversion structure, north of Hooker Oak, Upper Bidwell Park, Chico 68 Comment
  JEPS115303  Plagiobothrys fulvus Lowell Ahart 2009-4-17 15544 Butte South slope of a ridge, about 150 yards west of Highway 32, near the south boundary, Upper Bidwell Park, about 5 miles (air) northeast of Chico 373 Comment
  JEPS115352  Kickxia elatine Lowell Ahart 2009-7-3 15991 Butte 10 yards north of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove parking area, Lower Bidwell park, Chico 67 Comment
  JEPS115598  Rubus discolor Lowell Ahart 2009-5-23 15771 Butte On the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 203 Comment
  JEPS115639  Arbutus menziesii Lowell Ahart 2009-8-23 16297 Butte On the west side of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 209 Comment
  JEPS115659  Logfia gallica Lowell Ahart 2009-5-30 15809 Butte On dry rocky soil, on the west side of Guardian's Trail, about 100 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 3/8 mile (air) west of the intersection of Highway 32 and Ten Mile House Road 440 Comment
  JEPS115673  Polygala cornuta var. cornuta Lowell Ahart 2009-5-30 15776 Butte On dry soil, on the south side of Ten Mile House Road, Upper Bidwell Park, about 3/8 mile (air) west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 369 Comment
  JEPS115691  Lathyrus tingitanus Lowell Ahart 2009-6-3 15811 Butte On the north side of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 311 Comment
  JEPS115713  Lactuca scariola var. integrata Lowell Ahart 2009-8-3 16251 Butte On the east side of Ten Mile House Road, just northeast of Guardians Trail, Upper Bidwell Park, about 1/4 mile west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  JEPS115816  Vicia sativa subsp. nigra Lowell Ahart 2009-4-26 15635 Butte About 10 miles northeast of Chico, Upper Bidwell Park, about 1/4 mile west of the intersection of Highway 32 and Ten Mile House Road. On the east side of Ten Mile House Road, just northeast of Guardians Trail 381 Comment
  JEPS115824  Marah watsonii Lowell Ahart 2009-4-26 15648 Butte On the east side of Guardians Trail, about 100 yards north of Pine Trail, Upper Bidwell Park, about 3/8 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  JEPS115844  Medicago polymorpha Lowell Ahart 2009-4-22 15576 Butte West side of Guardians Trail, along the small drainage just north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  JEPS115956  Bromus hordeaceus Lowell Ahart 2009-4-26 15638 Butte On the west side of Guardians Trail, just south of Pine Trail, Upper Bidwell Park, about 3/8 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  JEPS115993  Bromus diandrus Lowell Ahart 2009-5-8 15667 Butte On the south side of the gravel road, about 10 yards east of Cedar Grove Parking Area in Lower Bidwell Park, Chico 67 Comment
  JEPS116010  Paspalum dilatatum Lowell Ahart 2009-7-3 15993 Butte 10 yards north of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove parking area, Lower Bidwell park, Chico 67 Comment
  JEPS116038  Toxicodendron diversilobum Lowell Ahart 2009-4-22 15565 Butte West side of Guardians Trail, about 50 yards north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  JEPS116047  Avena barbata Lowell Ahart 2009-4-17 15552 Butte On the south slope of a ridge, about 150 yards west of Highway 32, near the south boundary, Upper Bidwell Park, about 5 miles (air) northeast of Chico 373 Comment
  JEPS116058  Dactylis glomerata Lowell Ahart 2009-6-19 15916 Butte Upper Bidwell Park, on the north side of Ten Mile House Road, about 100 yards west of the intrsection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 461 Comment
  JEPS116085  Carex bolanderi Lowell Ahart 2009-5-30 15790 Butte Along a small stream about 20 yards south of the fence and about 100 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 269 Comment
  JEPS116130  Cystopteris fragilis Lowell Ahart 2009-5-23 15740 Butte On the east bank of Big Chico Creek, on the west side of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highwat 32, about 10 miles northeast of Chico 234 Comment
  JEPS116131  Equisetum laevigatum Lowell Ahart 2009-5-15 15685 Butte On the east side of Big Chico Creek, about 50 years west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west Highway 32, about 10 miles northeast of Chico 203 Comment
  JEPS117138  Collinsia heterophylla Lowell Ahart 2010-5-7 16627 Butte On both sides of the Guardian Trail, about 1/2 mile west of Highway 32, Upper Bidwell Park, about 4 1/2 miles (air) northeat of Chico 238 Comment
  JEPS117147  Lupinus pachylobus Lowell Ahart 2010-4-30 16593 Butte Below rim and above cliffs, north side of disk golf area, on a ridge about 250 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 360 Comment
  JEPS117185  Pseudognaphalium stramineum Lowell Ahart 2010-6-1 16752 Butte On the south side of Guardians Trail, about 150 yards east of the end of Centennial Avenue, Upper Bidwell Park, about 1/2 mile east of Chico Canyon Road 125 Comment
  JEPS117282  Galium murale Lowell Ahart 2010-6-1 16764 Butte On dry poor bare soil, on the south side of Guardians Trail, about 1/8 mile west of the power lines, Upper Bidwell Park, about 1 1/2 miles (air) east of Chico 115 Comment
  JEPS117549  Cuscuta howelliana Lowell Ahart 2010-6-20 16824 Butte About 1/4 mile north of Cox Lane, about 1 1/2 miles east of Palermo Honcut Highway, Guidci Ranch, about 7 1/2 miles (air) southeast of Oroville 59 Comment
  JEPS117683  Agrostis thurberiana Lowell Ahart 2010-9-21 17214 Butte Open meadow-like area, about 70 yards east of the poor dirt road, about 80 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir 1917 Comment
  JEPS117697  Carex Lowell Ahart 2010-9-21 17204 Butte Open meadow like area in red fir forest, about 70 yards east of the poor dirt road, about 80 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir 1917 Comment
  JEPS118330  Plantago virginica Lowell Ahart 2011-5-10 17355 Butte Southeast of the tower, Peter Ahart Ranch, about 2 miles north and 2 1/4 miles east of Honcut, about 12 miles (air) southeast of Oroville 48 Comment
  JEPS119554  Athysanus pusillus Lowell Ahart 2012-2-22 17748 Butte About 5/8 mile west of Highway 32, about 8 3/4 miles (air) northeast of Chico. Comment
  JEPS119577  Euphorbia peplus Lowell Ahart 2012-4-17 17877 Butte About 100 yards south of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. Comment
  JEPS119581  Camissonia contorta Lowell Ahart 2012-4-17 17882 Butte About 200 yards southeast of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. Comment
  JEPS119606  Salix lasiolepis Lowell Ahart 2012-4-9 17831 -A Butte West of South Rim Trail, south part of Upper Bidwell Park, about 2 miles (air) northeast of Chico. Comment
  JEPS119614  Plantago elongata Lowell Ahart 2012-4-9 17835 Butte West of South Rim Trail, south part of Upper Bidwell Park, about 2 1/4 miles (air) northeast of Chico. Comment
  JEPS119626  Lathyrus latifolius Lowell Ahart 2012-6-14 18196 Butte Annie's Glen, Lower Bidwell Park, Chico. Comment
  JEPS119635  Epilobium campestre Lowell Ahart 2012-6-4 18153 Butte Peter Ahart Rancho, about 2 1/4 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. Comment
  JEPS119688  Plagiobothrys austiniae Lowell Ahart 2012-5-2 17955 Butte About 200 yards southwest of the Government Pole Line, about 100 yards northeast to the oak tree, Upper Bidwell Park, about 1 mile east of Chico. Comment
  JEPS119728  Gymnocladus dioicus Lowell Ahart, Susan Bazell, Josephine Guardino, Wes Dempsey 2012-7-5 18274 Butte Path in redwood grove north of the Deer Pen, near Table 9, Lower Bidwell Park, Chico. Comment
  JEPS119737  Helminthotheca echioides Lowell Ahart 2012-6-21 18221 Butte About 15 yards east of the Freeway, south of Big Chico Creek, Lower Bidwell Park, Chico. Comment
  JEPS119748  Pyrus communis Lowell Ahart 2012-5-17 18079 Butte North of Big Chico Creek, on the west side of the horse trail, southwest of the southwest corner of the old walnut orchard, about 3/5 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  JEPS119757  Trifolium repens Lowell Ahart 2012-5-14 18063 Butte Overflow area on the north edge of Big Chico Creek, west of the bridge and Manzanita Avenue, south of Vallombrosa Avenue, Lower Bidwell Park, Chico. Comment
  JEPS119774  Amorpha fruticosa Lowell Ahart 2012-5-12 18027 Butte About 300 yards southwest of Ten Mile House Road, about 1/2 mile (air) west of Highway 32, south part of Upper Bidwell Park, about 9 miles (air) northeast of Chico. Comment
  JEPS119786  Robinia pseudoacacia Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18002 Butte South of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  JEPS119883  Galium parisiense Lowell Ahart 2012-6-2 18144 Butte South edge of Truex Road, about 40 yards east of the intersection of Truex Road and Trevor Road, about 1/8 mile northwest of the West Branch Bridge across Lake Oroville. Comment
  JEPS119897  Stellaria media Lowell Ahart, Linnea Hanson, Josephine Guardino 2012-5-23 18112 Butte On the north side of Big Chico Creek, along the horse trail, near Table 31, north of Cedar Grove, Lower Bidwell Park, Chico. Comment
  JEPS119909  Cyperus fuscus Lowell Ahart 2012-10-20 18500 Butte On the south side of Big Chico Creek, about 50 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  JEPS120064  Fraxinus Lowell Ahart, Josephine Guardino 2012-10-12 18480 Butte About 100 yards northeast of the sign Orient Street and E 1st Street, on the south side of Brig Chico Creek, on the east side of the bridge, Annie's Glen, Lower Bidwell Park, Chico. Comment
  JEPS120109  Carex subfusca Lowell Ahart 2012-6-28 18242 Butte On the north side of Big Chico Creek, east of Sycamore Pool, Lower Bidwell Park, Chico. Comment
  JEPS120129  Carex divulsa subsp. divulsa Lowell Ahart 2012-5-25 18113 Butte Northwest of the intersection of W. Frances Willard Avenue and Arcadian Avenue, one block south of Chico High School, Chico. Comment
  JEPS120149  Cyperus strigosus Lowell Ahart 2012-10-20 18501 Butte On the south side of Big Chico Creek, about 100 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  JEPS120165  Eragrostis pilosa var. pilosa Lowell Ahart 2012-8-22 18421 Butte South edge of parking area at the restroom, end of road to the Larkin Road Boat Lunch Area, about 1/4 mile west of Larking Road, about 2 miles (air) southwest of the Oroville Airport. Comment
  JEPS120618  Dysphania botrys Lowell Ahart 2013-11-13 19232 Butte Below the high water line of Lake Oroville, along the sides of Sucker Creek, about 30 yards north of the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. Comment
  JEPS120716  Najas guadalupensis subsp. guadalupensis Lowell Ahart 2013-10-16 19116 Butte Thermalito After Bay, about 20 feet north of the base of the large rock levee, about 100 yards north of Larkin Road, about 4 air miles north of East Biggs. Comment
  JEPS120724  Amaranthus palmeri Lowell Ahart 2013-10-12 19111 Butte On the west side of Highway 99E, about 20 yards south of B Street, about 1 mile east of Biggs Comment
  JEPS120953  Psilocarphus tenellus Lowell Ahart 2013-4-20 18555 Butte Corral at the barn, about 1/4 mile N of Honcut Cemetery, about 3.25 air miles NE of Honcut. Comment
  JEPS120960  Spergularia rubra Lowell Ahart 2013-4-29 18657 Butte About 1/4 mile N of the Honcut Cemetery, about 3.25 air miles NE of Honcut, Comment
  JEPS120961  Spergularia bocconi Lowell Ahart 2013-4-29 18656 Butte About 1/4 mile N of the Honcut Cemetery, about 3.25 air miles NE of Honcut, Comment
  JEPS121899  Calyptridium umbellatum Lowell Ahart 2014-7-10 19637 Butte About 80 yards south of Philbrook Road, about 1 1/4 miles west of Philbrook Reservoir. Comment
  JEPS121907  Navarretia capillaris Lowell Ahart 2014-7-16 19681 Butte About 60 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  JEPS121910  Achillea millefolium Lowell Ahart 2014-7-16 19684 Butte About 30 yards east of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  JEPS121927  Veratrum californicum var. californicum Lowell Ahart 2014-7-16 19691 Butte About 110 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  JEPS121938  Luzula comosa var. comosa Lowell Ahart 2014-7-7 19598 Butte On the south side of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  JEPS121947  Agrostis idahoensis Lowell Ahart 2014-7-7 19587 Butte In the bog, Coon Hollow, about 2 miles (air) north of Philbrook Reservoir. Comment
  JEPS121985  Cryptantha affinis Lowell Ahart 2014-7-7 19562 Butte About 5 yards east of the Skyway, about one-mile north of Stirling City. Comment
  JEPS122029  Muhlenbergia filiformis Lowell Ahart 2014-7-2 19549 Butte About 200 yards north of the County Road, about one mile west of the intersection of County Road and Lumpkin Road, about 7 miles northeast of Feather Falls. Comment
  JEPS122065  Sagina decumbens subsp. occidentalis Lowell Ahart 2014-5-21 19530 Butte South bank of river, where Sucker Creek flows into the South Fork of the Feather River, below the high water line of Lake Oroville, about 1/4 mile west of the Ponderosa Dam. Comment
  JEPS122072  Trifolium wormskioldii Lowell Ahart 2014-7-13 19651 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir Comment
  JEPS122208  Pseudognaphalium luteoalbum Lowell Ahart 2014-4-25 19395 Butte On the west side of Richvale South Highway, south of the intersection of Richvale West Road and Richvale South Highway, Richvale. Comment
  JEPS122228  Limosella acaulis Lowell Ahart 2014-4-26 19413 Butte On the south side of Butte City Highway (Highway 162), collected from the railroad to the east about 200 yards, east of the Rice Experiment Station. Comment
  JEPS122248  Glinus lotoides Lowell Ahart 2014-9-23 19869 Butte On the northeast part of Horseshoe Lake, about 100 yards northeast of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. Comment
  JEPS122257  Anthriscus caucalis Lowell Ahart 2014-4-9 19332 Butte West edge of Pennington Road, at intersection of Pennington Road and Colusa Highway, about 5 miles west of Gridley. Comment
  JEPS122274  Planodes virginica Lowell Ahart 2014-4-9 19325 Butte On the north side of Colusa Highway, about 4/10 mile east of the intersection of Pennington Road and Colusa Highway, about 5 1/2 miles west of Gridley. Comment
  JEPS123881  Hesperocyparis macnabiana Lowell Ahart 2015-4-30 20117 Butte About 1/4 mile south of Forbestown Reservoir Road, about 2 1/2 miles (air) northeast of Forbestown. Comment
  JEPS123906  Elatine Lowell Ahart 2015-4-24 20069 Butte About 3/4 mile north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. Comment
  JEPS124028  Madia exigua Lowell Ahart 2015-6-16 20231 Butte About 3 1/2 miles (by road) northwest of Fall River Bridge, about 5 miles (air) northwest of Camp 18, about 8 1/2 miles (air) northeast of Feather Falls. Comment
  JEPS124120  Madia exigua Lowell Ahart 2015-6-6 20201 Butte About 5/8 mile northwest of the iron gate along Cherokee Road, Beatson Hollow, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  JEPS124229  Plagiobothrys glyptocarpus var. glyptocarpus Lowell Ahart 2015-3-27 19974 Butte About 400 yards southeast of Coal Canyon Falls, about 1 1/2 miles (air) northwest of the improved parking area, North Table Mountain, about 8 miles north of Oroville. Comment
  JEPS124272  Juncus articulatus subsp. articulatus Lowell Ahart 2015-11-18 20666 Butte About 1 1/2 miles southeast of intersection of Palm Avenue and Larkin Road, about 5 miles (air) northeast of Gridley. Comment
  JEPS124323  Symphyotrichum subulatum var. elongatum Lowell Ahart 2015-10-20 20572 Butte About half way of and east of One Mile Pond, about 6 miles (air) east of Biggs. Comment
  JEPS124343  Portulaca oleracea Lowell Ahart 2015-10-26 20608 Butte About 1 mile (air) of southeast of Kunckle Reservoir, about 5 miles (air) southeast of Paradise. Comment
  JEPS124352  Dysphania pumilio Lowell Ahart 2015-10-26 20595 Butte About 1 mile (air) of southeast of Kunckle Reservoir, about 5 miles (air) southeast of Paradise. Comment
  JEPS124395  Veronica arvensis Lowell Ahart 2015-6-16 20234 Butte About 4 miles (by road) northwest of Fall River Bridge, about 5 1/2 miles (air) northwest of Camp 18, about 9 miles (air) northeast of Feather Falls. Comment
  JEPS126592  Navarretia heterandra Lowell Ahart 2016-5-24 20846 Butte About 200 yards west of Loma Rica Road, about 250 yards southwest of the intersection of Loma Rica Road and La Porte Road, about 3 1/2 miles (air) northeast of Honcut. Comment
  JEPS127013  Torilis nodosa Lowell Ahart 2016-5-24 20852 Butte About 150 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. Comment
  JEPS127068  Amaranthus albus Lowell Ahart 2016-5-30 20892 Butte Peter Ahart Ranch, about 2 1/2 miles north and 1/2 mile east of Honcut, about 12 miles (air) south of Oroville. Comment
  JEPS127196  Triglochin scilloides Lowell Ahart 2016-5-30 20887 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 1/8 miles east of Honcut, about 12 miles (air) southeast of Oroville. Comment
  JEPS128723  Cotula coronopifolia Lowell Ahart 2017-4-22 21390 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles (air) south of Oroville. Comment
  JEPS87166  Cryptantha affinis Lowell Ahart 1992-7-21 6820 Butte about 2 (air) mi ne Philbrook Reservoir (on the s side of Coon Hollow, n.w. of a snow lake); Coon Hollow 1737 Comment
  JEPS87193  Collomia linearis Lowell Ahart 1992-7-21 6819 Butte about 2 (air) mi ne Philbrook Reservoir (s side of hollow nw of a snow lake, on s side of Coon Hollow); Coon Hollow 1737 Comment
  JEPS87487  Torilis arvensis Lowell Ahart 1993-6-16 6969 Butte about 3.5 (air) mi sw Forbestown (sw of the intersection of Black Bart Road and Forbestown Road) 609 Comment
  JEPS87534  Ageratina occidentalis Lowell Ahart 1993-9-8 7167 Butte on top of ridge about 1/2 mi e Snow Mountain; e of Snow Mountain 2103 Comment
  JEPS87616  Lepidium latifolium Lowell Ahart 1994-9-26 7548 Butte about 1.5 mi n and 1 mi e Honcut (about 12 mi s of Oroville, Peter Ahart Ranch); Peter Ahart Ranch 36 Comment
  JEPS87706  Carex gracilior Lowell Ahart 1994-4-29 7291 Butte about 2 1/2 mi n and 2 3/4 mi e Honcut (on the w side of North Honcut Creek, about 12 mi se of Oroville); North Honcut Creek 54 Comment
  JEPS88522  Pseudognaphalium stramineum Lowell Ahart 1996-6-25 7685 Butte about 1 1/4 mi n and 1/2 mi e Honcut (about 12 mi s of Oroville); Peter Ahart Ranch 36 Comment
  JEPS93811  Cuscuta californica Lowell Ahart 1998-7-19 8048 Butte along Hurleton Swedes Flat Road 1 1/2 air mi s of Hurleton (about 11 air mi se of Oroville); Hurleton Swedes Flat Road 487 Comment
  JEPS94298  Agrostis pallens Lowell Ahart 1997-8-1 7772 Butte about 8 air mi ne of Stirling City (about 1/4 mi e of Table Mountain, on e side of Little Kimshew Creek, Snow Meadow); Snow Meadow, Little Kimshew Creek 1524 Comment
  JEPS94656  Medicago praecox Lowell Ahart 1998-4-8 7947 Butte 0.1 mi n Thermalito Diversion Dam (w of dirt road, e of the Thermalito Diversion Pool, 1/4 mi ne of Oroville) 67 Comment
  JEPS94685  Streptanthus diversifolius Lowell Ahart 1998-6-3 7967 Butte about 7 air mi n of Oroville (about 1/4 mi n of the cow chute along Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 403 Comment
  JEPS94953  Euphorbia spathulata Lowell Ahart 1997-3-25 7714 Butte about 12 air mi se of Oroville (about 2 1/4 mi n and 2 1/2 mi e of Honcut, w of the ditch for the Old Honcut Flume, w of North Honcut Creek) 60 Comment
  JEPS94977  Juncus orthophyllus Lowell Ahart 1997-8-1 7761 Butte ca. 0.25 mi. e. Table Mt. (ca. 8 mi. (air) n.e. of Stirling City, on bottom of Little Kimshew Creek, Snow Meadow); Little Kimshew Creek, Snow Meadow 1524 Comment
  JEPS94986  Calamagrostis canadensis Lowell Ahart 1997-7-11 7757 Butte about 4 air mi ne of Stirling City (near the w edge of small bog, e of the dirt road, about 1/4 air mi e of Bald Mountain) 1676 Comment
  JEPS95023  Calystegia occidentalis subsp. occidentalis Lowell Ahart 1997-7-11 7751 Butte about 2 air mi ne of Stirling City (s side of dirt road, se of Cold Creek, about 2 air mi sw of Bald Mountain, about 9 mi by road from Stirling City) 1219 Comment
  JEPS95025  Muhlenbergia filiformis Lowell Ahart 1997-10-20 7931 Butte 3 air mi nw of Sly Creek Reservoir Dam (on w side of sharp bend in South Fork Feather River, about 1/4 mi n of bridge across the river, about 3/4 mi n of Golden Trout Crossing); South Fork Feather River 914 Comment
  JEPS95060  Keckiella lemmonii Lowell Ahart 1997-8-1 7795 Butte ca. 8 mi. (air) n.e. Stirling City (ca. 0.25 mi. e. of Table Mountain, on w. side of Little Kimshew Creek); Little Kimshew Creek 1371 Comment
  JEPS95859  Potamogeton pusillus var. pusillus Lowell Ahart 1999-8-22 8190 Butte northwest of Parrott Landing; about 1 mile southeast of Ord Ferry; about 2 miles southeast of Ordbend; about 12 miles (air) southwest of Chico 32 Comment
  JEPS95876  Mimulus pilosus Lowell Ahart 1999-8-13 8133 Butte about 1 mile southeast of Ord Ferry; Chico; northwest of Parrott Landing; about 1 mile southeast of Ord Ferry; about 2 miles southeast of Ordbend; about 12 miles (air) southwest of Chico 32 Comment
  JEPS98312  Pyrola aphylla Lowell Ahart 2000-7-11 8573 Butte On the north side of a dirt road, about 100 yards north of Lumpkin Ridge Road, upper west branch of Know-nothing Creek, about 1 mile southwest of the intersection of Lumpkin Ridge Road, road to Fall River, and the County Road, about 4 miles (air) northeast of Feather Falls 1219 Comment
  JEPS98314  Ranunculus pusillus Lowell Ahart 2000-5-13 8356 Butte 5 air miles SW of Oroville (margin of Thermalito Afterbay S side of access road to boat ramp, W of Larkin Road, about 1 1/4 mi S of Oroville Airport) 42 Comment
  JEPS98349  Lipocarpha aristulata Lowell Ahart 2000-10-15 8709 Butte 12 air miles SW of Chico (E edge of Sacramento River, NW of Parrott Landing, 1 mi SE of Ord Ferry. 2 mi SE of Ordbend) 32 Comment
  JEPS98369  Linanthus filipes Lowell Ahart 2000-6-27 8526 Butte 12 air miles NE of Oroville (N part of Big Bald Rock, 100 yds S and W of the N and E forest line, 3 air miles E of Madrone Lake) 963 Comment
  JEPS98413  Cotula australis Lowell Ahart 2000-3-25 8323 Butte NE of Oroville Post Office (waste area near the W side of the Ehmann Home) 36 Comment
  JEPS98415  Carex praegracilis Lowell Ahart 2000-4-27 8331 Butte 6 air miles SE of Gridley (E side of Pennington Road, 100 ft N of Rutherford Road,); Gray Lodge Waterfowl Management Area 21 Comment
  JEPS98429  Hesperolinon micranthum Lowell Ahart 2000-5-31 8427 Butte 3 mi SE of Paradise (just W of Lake Oroville, about 400 yds E of where Kunkle Creek enters Lake Oroville, E of the Kunkle Power House) 286 Comment
  JEPS98488  Juncus bufonius var. bufonius Lowell Ahart 2000-7-11 8565 Butte 4 air mi N[?]E of Feather Falls (dirt rd, 100 yds N of Lumpkin Ridge Rd, upper W branch Know-nothing Crk, 1 mi SW of int of Lumpkin R Rd, rd to Fall River, and the County Rd) Comment
  JEPS98531  Ludwigia peploides subsp. montevidensis Lowell Ahart 2000-7-18 8601 Butte On the margins of a small pond, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. 42 Comment
  JEPS98548 Image available Lythrum salicaria Lowell Ahart 2000-7-18 8598 Butte On the margins of a small pond, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. 42 Comment
  JEPS99049  Pilularia americana Lowell Ahart 2002-4-14 9482 Butte Area between the Railroad and the Midway Road, 50 yards south of Nelson Dlavo Road, in Nelson. 36 Comment
  POM366401  Rubus parviflorus L. Ahart, P. Ahart 1984-6-10 4695 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown. 700 Comment
  RSA0010838  Eucalyptus camaldulensis L. Ahart 2009-6-12 15843 Butte East side of the deer pen, about 50 yards north of the Bear s Lair Picnic Area and Coastal Redwood Grove sign, about 130 yards east of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  RSA0035820  Plagiobothrys stipitatus var. micranthus Lowell A. Ahart 2008-6-13 14824 Butte About 350 yards southwest of the cemetery, about 50 yards north of Oregon Gulch, about 10 miles (air) northeast of Oroville. 305 Comment
  RSA0037496  Navarretia filicaulis Lowell A. Ahart 2013-7-1 18818 Butte About 150 yards east of the intersection of Forbestown Road and Black Bart Road, about 3 1/4 miles (air) southwest of Forbestown. 737 Comment
  RSA0045624  Geranium dissectum Lowell A. Ahart 2012-4-30 17926 Butte 20 yards north of the table at the old homestead, about 20 yards southeast of the intersection of South Rim Trail and Ten Mile House Road, about 5/8 mile west of Highway 32, about 9 miles (air) northeast of Chico, south part of Upper Bidwell Park. 250 Comment
  RSA0060842  Madia elegans subsp. densifolia Lowell A. Ahart 2012-10-28 18535 Butte On the north side of the paved park road, west of Table 27, north of Cedar Grove, Lower Bidwell Park, Chico. 69 Comment
  RSA0080120  Linum bienne Lowell Ahart 2011-6-5 17365 Butte On the west edge of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 42 Comment
  RSA0114656  Ranunculus bonariensis var. trisepalus Lowell A. Ahart 2015-5-5 20138 Butte About 30 yards north of Larkin Road, about 400 yards south of Larkin Road Boat Launch Area, near the Thermalito Afterbay, about 1 mile southwest of the Oroville Airport, about 6 miles (air) southwest of Oroville. 43 Comment
  RSA0116107  Perideridia lemmonii Lowell A. Ahart 2014-7-13 19667 Butte About 150 yards southeast of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  RSA0118700  Sagina decumbens subsp. occidentalis Lowell A. Ahart 2014-4-26 19410 Butte On the south side of Butte City Highway (Highway 162), collected from the railroad to the east about 200 yards, east of the Rice Experiment Station. 31 Comment
  RSA0118720  Cerastium glomeratum Lowell A. Ahart 2014-4-16 19363 Butte About 100 yards north of East Gridley Road, on the west side of the Feather River, about 2 miles east of Gridley. 30 Comment
  RSA0118721  Cerastium glomeratum Lowell A. Ahart 2014-4-15 19355 Butte About 400 yards west of the old road, about 3.5 miles (air) northeast of Oroville Dam. 236 Comment
  RSA0119042  Gayophytum racemosum Lowell Ahart 2014-7-7 19602 Butte On the south side of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1665 Comment
  RSA0119327  Draperia systyla Lowell A. Ahart 2014-7-16 19671 Butte About 50 yards east of the Skyway, about one-mile north of Stirling City. 1142 Comment
  RSA365246  Echinochloa oryzoides L. Ahart 1984-9-17 4792 A Butte Peter Ahart Ranch, ca. 2.3 mi. N and 0.3 mi E of Honcut, ca. 12 mi S of Oroville. 50 Comment
  RSA433569  Dicentra formosa subsp. formosa L. Ahart, Peter Ahart 1984-6-10 4710 Butte About 2 miles SW of Forbestown Diversion Dam, NE of Forbestown. 700 Comment
  RSA695401  Eleocharis obtusa var. engelmannii L. Ahart 2003-6-23 10302 Butte Peter Ahart Ranch, about 300 yards east of Palermo Honcut Highway, about 2 1/8 miles north of Honcut, about 12 miles south of Oroville 30 Comment
  RSA699921  Navarretia filicaulis L. Ahart 2004-6-22 11120 Butte On the west side of Doe Mill Road, where the road goes east to the water ditch, about 0.5 mile southeast of the bridge across Butte Creek, about 2 1/2 miles (air) southeast of Forest Ranch, about 5 miles (air) southwest of Stirling City. 714 Comment
  RSA713010  Leptochloa fusca subsp. uninervia L. Ahart 2005-12-11 12517 Butte on Rice Experiment Station, between the Main Ditch and Stine Lateral, on the north side of Hamilton Road, about 1/4 mile east of Riceton Highway, about 2 1/4 miles (air) east of Biggs 30 Comment
  RSA713014  Polypogon interruptus L. Ahart 2005-12-11 12520 Butte Rice Experiment Station, between the Main Ditch and Stine lateral, on the north side of Hamilton Road, about 1/4 mile east of Riceton Highway, about 2 1/4 miles (air) east of Biggs. 30 Comment
  RSA716403  Mentha spicata var. spicata L. Ahart 2005-8-19 12334 Butte East side of North Honcut Creek, about 1 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 50 Comment
  RSA718088  Monardella odoratissima subsp. glauca L. Ahart 2006-7-16 12960 Butte north side of Humboldt Road, about 1 1/2 miles (air) southwest of Butte Meadows 1436 Comment
  RSA718168  Calystegia malacophylla L. Ahart 2006-7-11 12942 Butte 100 yards south of Humboldt Road, about 1 3/8 miles (air) southwest of Butte Meadows. 1401 Comment
  RSA718343  Bromus carinatus L. Ahart 2006-6-9 12643 Butte Along the north side of the service road to Bardes Bar along the North Fork of the Feather River, about 70 yards east of the electric tower, on the east side of Highway 70, about 2 3/4 miles (air) southwest of Pulga. 535 Comment
  RSA718953  Lolium perenne subsp. multiflorum L. Ahart 2006-9-28 13382 Butte East side of the North Fork of the Feather river, on the west side of Highway 70, about 50 yards southwest of the Shady Rest Area south of the Arch Rock Tunnel. 445 Comment
  RSA724813  Chamaesyce maculata L. Ahart 2006-9-11 13284 Butte South edge of the North Fork of the Feather River, north side of Highway 760, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville. 432 Comment
  RSA725000  Chenopodium ambrosioides var. ambrosioides L. Ahart 2006-9-11 13281 Butte South edge of the North Fork of the Feather River, North side of Highway 70, About 1/8 mile west of the Poe Dam, About 3/4 mile northeast of Pulga, About 21 miles (air) northeast of Oroville. 432 Comment
  RSA725004  Apocynum cannabinum L. Ahart 2006-9-11 13272 Butte South edge of the North Fork of the Feather River, north side of highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 air miles northeast of Oroville. 432 Comment
  RSA726811  Lotus argophyllus var. fremontii L. Ahart 2007-5-29 13937 Butte About 1 3/4 miles by the trail from the trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Big Bald rock, about 16 miles (air) northeast of Oroville. 586 Comment
  RSA729997  Juncus bufonius var. bufonius L. Ahart 2007-7-3 13970 Butte West of the bridge across Concow creek, west side of jordan hill road, about 1.5 mi. (air) southwest of Concow Reservoir. 415 Comment
  RSA754390  Clematis lasiantha L. Ahart 2009-4-22 15589 Butte W side of Guardians Trail, about 100 yards N of Pine Trail, Upper Bidwell Park, W of the intersection of Highway 32 and Ten Mile House Road, about 10 miles NE of Chico. 382 Comment
  RSA754577  Trifolium variegatum L. Ahart 2009-4-17 15543 Butte S slope of a ridge, about 150-200 yards W of Highway 32, near the S boundary, Upper Bidwell park, about 5 air miles NE of Chico. 373 Comment
  RSA754586  Vulpia microstachys var. microstachys L. Ahart 2009-4-22 15600 Butte W side of Guardians Trail, about 100 yards N of Pine Trail, Upper Bidwell Park, W of the intersection of Highway 32 and Ten Mile House Road, about 10 miles NE of Chico. 382 Comment
  RSA754882  Rosa pisocarpa L. Ahart 2009-6-19 15921 Butte East side of Big Chico Creek, SW of the meadow, about 30 yards W of Ten Mile House Road, Upper Bidwell Park, about 3/4 air miles W of Highway 32, about 10 miles NE of Chico. 209 Comment
  RSA754884  Rhamnus ilicifolia L. Ahart 2009-6-30 15963 Butte S of a small drainage, along Guardian Rock Trail, about 5/8 air miles SW of the intersection of Ten Mile House Road and Highway 32, Upper Bidwell Park, about 10 miles NE of Chico. 386 Comment
  RSA767797  Draba verna L. Ahart 2010-2-13 16565 Butte Parking area, Peter Ahart Ranch, abut 1.5 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 34 Comment
  RSA768986  Veronica peregrina subsp. xalapensis L. Ahart 2010-5-22 16708 Butte About 100 yards east of the fence, about 200 yards east of the parking area, North Table Mountain,about 4.4 air miles northeast of Oroville 385 Comment
  RSA769024  Baccharis pilularis L. Ahart 2009-11-19 16544 Butte About 30 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 air mile west of Highway 32, about 10 miles northeast of Chico. 210 Comment
  RSA769674  Parvisedum pumilum L. Ahart 2009-4-22 15603 Butte W side of Guardians Trail, about 100 yards N of Pine Trail, Upper Bidwell Park, W of the intersection of Highway 32 and Ten Mile House Road, about 10 miles NE of Chico. 382 Comment
  RSA769811  Dittrichia graveolens L. Ahart 2008-11-8 15445 Butte Parking area on the west side of the Midway, west of the intersection of Midway and East Park Avenue, Chico 61 Comment
  RSA795637  Polypodium calirhiza L. Ahart 2012-2-22 17740 Butte East edge of Big Chico Creek, about 100 yards south of the trail crossing the creek, about 100 yards west of Ten Mile House Road, about 0.75 miles west of Highway 32, about 9 air miles northeast of Chico. 190 Comment
  RSA795640  Umbellularia californica L. Ahart 2012-3-23 17796 Butte North side of Ten Mile House Road, about 0.5 miles west of Highway 32, about 9 air miles northeast of Chico. 388 Comment
  RSA795642  Salix lasiolepis L. Ahart 2012-4-20 17887 Butte East side of Big Chico Creek, about 20 yards west of the trail, about 200 yards west of Ten Mile House Road, about 0.75 miles west of Highway 32, about 9 miles northeast of Chico, south part of Upper Bidwell Park. 204 Comment
  RSA795644  Fraxinus dipetala L. Ahart 2012-4-20 17896 Butte West side of South Rim Trail, about 5/8 miles west of Highway 32, about 8.5 miles northeast of Chico, south part of Upper Bidwell Park. 255 Comment
  SBBG126095  Leptochloa fusca subsp. fascicularis L. Ahart 2011-10-29 17731 Butte bare sides of a ditch, on S side of Biggs Princeton Rd, ca. 500 yards W of Riceton Hwy, ca. 1 mi NW of Biggs 27 Comment
  SBBG128017  Plagiobothrys stipitatus var. micranthus L. Ahart 2010-5-14 16653 Butte W side of the old Humboldt Rd, Disc Golf Area, ca. 150 yards N of the entrance to the Disc Golf Area, ca. 40 yards W of Hwy 32, upper Bidwell Park, ca. 5 mi (air) NE of Chico 395 Comment
  SBBG128108  Arctostaphylos manzanita subsp. manzanita L. Ahart 2009-11-19 16564 Butte W side of Ten Mi House Rd, just N of Guardians Trail, upper Bidwell Park, ca. 0.25 mi W of intersection of Hwy 32 and Ten Mi House Rd, ca. 10 mi NE of Chico 381 Comment
  SD121519  Juncus leiospermus var. ahartii Lowell Ahart 1982-5-1 3402 Butte Peter Ahart Ranch, ca. 2 miles north and I(c) mile east of Honcut, between Marysville and Oroville. Wet bare soil around the edges of a large vernal pool in one of the farmed fields. Common only around edge of pool. 49 Comment
  SEINET10662028  Bromus orcuttianus Lowell Ahart 2004-7-11 Ahart 11232 Butte T23N, R4E, southeast 1/4 Section 7. On the northeast edge of Paradise Lake, about 3/4 mile northeast of the picnic area, about 1 mile northeast of Paradise Dam, about 4 miles (air) southwest of Stirling City. 815 Comment
  SEINET10894839  Carex vernacula Lowell Ahart 2010-9-28 Ahart 17264 Butte T25N, R5E, northeast 1/4 Section 29. On the south edge of a 10 acre meadow, about 100 yards east of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1886 Comment
  SEINET11268343  Lythrum salicaria Lowell Ahart 2000-7-18 8598 Butte About 1/2 miles west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville.; 0 43 Comment
  SEINET12649362 Image available Carex divulsa Lowell Ahart 2012-1 17948 . Butte 64 Comment
  SEINET12649574 Image available Carex luzulina var. ablata Lowell Ahart 2010-1 17219 Butte 1918 Comment
  SEINET12765225  Trifolium campestre Lowell Ahart 1992-5-9 6750 Butte On the north side of the Thermalito Diversion Pool, Lake Oroville Recreation Area, about 2 (air) miles north of Oroville.; 0 76 Comment
  SEINET12875381 Image available Cyperus iria Lowell Ahart 2012-1 18415 Butte 31 Comment
  SEINET13711198  Moenchia erecta Lowell William Ahart, Lowell William Ahart 2000-1 8332 Butte 10 Air Mi. NE of Oroville at Oak Grove Cemetery (T19N, R5E, sec 23, Ctr.) 1800 Ft. 549 Comment
  SEINET13711406  Cyperus niger Lowell William Ahart, Lowell William Ahart 1999-1 8274 Butte 12 Air Mi SW of Chico, 2 Mi SE Ordbend Comment
  SEINET256391  Aster chilensis var. medius Lowell Ahart 1985-10-8 5195 Butte On the bottom and sides of North Honcut Creek, Peter Ahart Ranch. about 1 1/2 miles north and 3 miles east of Honcut., about 12 miles south of Oroville. 55 Comment
  UC1260479  Rhynchospora capitellata Lowell Ahart 1980-9-10 2618 Butte near Bean Creek Rd. (se of Little Bald Rock, ne of Oroville) 1100 Comment
  UC1506779  Pentagramma pallida Lowell Ahart 1984-2-3 4494 Butte ca. 3.5 mi ne of Honcut (ca. 1/4 mi s of Cox Lane, e of pole line tower) 100 Comment
  UC1562288  Juncus bufonius Lowell Ahart 1990-7-4 6545 Butte about 0.5 mi sw Enterprise Bridge across Lake Oroville (along McCabe Creek); Lake Oroville, McCabe Creek 243 Comment
  UC1562377  Rumex acetosella Lowell Ahart 1990-5-25 6497 Butte 1.25 mi nw Enterprise Bridge (across Lake Oroville) (0.25 mi w of Enterprise Boat Launch Area, just below the high water line of Lake Oroville); Lake Oroville 274 Comment
  UC1562409  Gamochaeta argyrinea Lowell Ahart 1990-6-16 6523 Butte below high water line Lake Oroville (about 1/2 mi sw of Enterprise Bridge across Lake Oroville) 259 Comment
  UC1562421  Agoseris heterophylla var. heterophylla Lowell Ahart 1990-6-16 6509 Butte Just south of the Forbestown Generator, on the south side of the Forbestown Reservoir. 487 Comment
  UC1562450  Vulpia microstachys var. pauciflora Lowell Ahart 1990-4-28 6472 Butte about 3.5 mi sw Oroville (steep banks on the s side of Pacific Heights Road) 33 Comment
  UC1563277  Amaranthus californicus Lowell Ahart 1990-9-30 6602 Butte below Canyon Creek Bridge across Lake Oroville (along the edges of Canyon Creek); Lake Oroville, Canyon Creek 228 Comment
  UC1563286  Stachys pycnantha Lowell Ahart 1990-10-3 6615 Butte East Fork of Canyon Creek, below the high water line of Lake Oroville, about 1/4 mi northeast of the Canyon Creek Bridge across Lake Oroville. 259 Comment
  UC1586403  Cotoneaster pannosus Lowell Ahart 1991-6-19 6661 Butte along the Dan Beebe Trail in Lake Oroville Recreation Area, between Canyon Drive and Oroville Dam Blvd East, southwest of Orovillle Dam. 213 Comment
  UC1586516  Phyla nodiflora var. nodiflora Lowell Ahart 1991-9-14 6725 Butte about 2 mi e Honcut (Joie Osgood Ranch) 45 Comment
  UC1586533  Polygonum punctatum Lowell Ahart 1991-9-14 6714 Butte about 2 mi e Honcut (sides of reservoir); Joie Osgood Ranch 45 Comment
  UC1586630  Allophyllum divaricatum Lowell Ahart 1991-6-22 6662 Butte n. of Springtown Rd. Lake Oroville 243 Comment
  UC1586632  Poa compressa Lowell Ahart 1991-7-22 6665 Butte e of Springtown Rd Lake Oroville (w side of Powell Creek) 243 Comment
  UC1594543  Carex vesicaria Lowell Ahart 1992-7-21 6806 Butte about 2 (air) mi ne Philbrook Reservoir (on the s side of Coon Hollow) 1737 Comment
  UC1594545  Mentha spicata Lowell Ahart 1992-7-23 6831 Butte about 1.25 mi nw Oroville Dam (bottom of Oregon Gulch, n of the Thermalito Diversion Pool, Lake Oroville Recreation Area); Lake Oroville Recration Area, Oregon Gulch 91 Comment
  UC1594551  Rumex salicifolius var. denticulatus Lowell Ahart 1992-5-9 6768 Butte about 2 (air) mi n Oroville (e of Cherokee Road); Lake Oroville Recreation Area 91 Comment
  UC1594565  Juncus bufonius var. occidentalis Lowell Ahart 1992-7-29 6882 Butte ca. 3/4 mi. n.w. Lotts Lake (ca. 1 mi. n.e. of Carr Mine) 1798 Comment
  UC1594619  Juncus nevadensis Lowell Ahart 1992-7-26 6859 Butte about 1/4 mi ne of the Carr Mine (about 2 air mi se of Snow Mountain) 1798 Comment
  UC1594625  Ericameria arborescens Lowell Ahart 1992-9-20 6924 Butte about 3/4 mi s Rocky Point (at end of the Enterprise Boat Launch Ramp) 259 Comment
  UC1594678  Cotoneaster pannosus Lowell Ahart 1991-12-30 6735 Butte along the Dan Beebe Trail in Lake Oroville Recreation Area, between Canyon Drive and Oroville Dam Blvd. East southwest of Oroville Dam. 213 Comment
  UC1594709  Rumex stenophyllus Lowell Ahart 1992-5-23 6777 Butte about 0.5 mi s Butte City Highway (on the w side of Goodspeed Watt Road) 30 Comment
  UC1594721  Eriogonum marifolium Lowell Ahart 1992-7-29 6892 Butte about 1 mi e, about 1/2 mi nw of Lotts Lake Carr mine 1828 Comment
  UC1609009  Rhus trilobata Lowell Ahart 1993-8-4 6929 Butte 2.5 mi s Oroville Airport (e side of gravel road, e of Feather River); Oroville Wildlife Area 30 Comment
  UC1609050  Juncus bufonius var. occidentalis Lowell Ahart 1993-8-29 7119 Butte about 6 1/2 mi ne of Stirling City (about 2 1/2 mi ne of Bald Mountain) 1584 Comment
  UC1609052  Navarretia divaricata Lowell Ahart 1993-7-29 7125 Butte 6.5 mi ne Stirling City (2.5 mi ne of Bald Mountain, .12 mi n of the Snow Mine, on the e side of an old water ditch for gold mining) 1676 Comment
  UC1609054  Eleocharis bella Lowell Ahart 1993-7-13 7065 Butte 12 mi S of Oroville (bottom of a deep wash, Peter Ahart Ranch, 1 1/2 mi N and 1 mi E of Honcut) 36 Comment
  UC1609192  Torilis arvensis Lowell Ahart 1993-6-16 6969 Butte about 3.5 (air) mi sw Forbestown (sw of the intersection of Black Bart Road and Forbestown Road) 609 Comment
  UC1609219  Stephanomeria lactucina Lowell Ahart 1993-7-22 7071 Butte w side of dirt road about 1/4 mi nw Camp 18 (about 5 air mi ne of Feather Falls) 1219 Comment
  UC1609223  Malacothrix floccifera Lowell Ahart 1993-6-26 7028 Butte about 1 mi w Lost Creek Reservoir (w side of the dirt road); Mooreville Ridge 1188 Comment
  UC1609262  Agrostis exarata Lowell Ahart 1993-9-13 7226 Butte about 1 mi se Butte Meadows (on s side of Bolt Creek) 1325 Comment
  UC1609264  Muhlenbergia filiformis Lowell Ahart 1993-7-29 7124 Butte near a seep about 2 1/2 mi n Bald Mountain (about 6 1/2 mi ne of Stirling City) 1584 Comment
  UC1609278  Mentha pulegium Lowell Ahart 1993-7-22 7068 Butte Peter Ahart Ranch, about 2.5 miles N and 1/20 mi E of Honcut, about 12 mi S of Oroville 36 Comment
  UC1609300  Eucephalus breweri Lowell Ahart 1993-9-8 7158 Butte about 1 mi e Snow Mountain (n side of ridge) 2072 Comment
  UC1609516  Bromus sterilis Lowell Ahart 1993-6-20 6978 Butte at Camp 18 Camp 18 1158 Comment
  UC2026873  Pistacia atlantica Lowell Ahart, Susan Bazell, Josephine Guardino, Wes Dempsey 2012-7-5 18266 Butte Cedar Grove, south parking area, Lower Bidwell Park, Chico. Comment
  UC2026875  Pistacia chinensis Lowell Ahart, Linnea Hanson, Kaline Le Coq, Josephine Guardino 2012-4-27 17912 Butte On the north side of the path, near table 14, on the north side of Centennial Avenue, Lower Bidwell Park, Chico. Comment
  UC2026889  Quercus Lowell Ahart, Susan Bazell, Josephine Guardino 2012-5-31 18121 Butte 40 yards north of the paved park road (Peterson Drive) about 700 yards west of the gate, northwest of the parking Area, Lower Bidwell Park, Chico. Comment
  UCD169282  Dittrichia graveolens Lowell Ahart 2007-10-30 14510 Butte About 7 (air) miles west of Oroville. About 500 yards south of Richvale East Road, about 100 yards north of Badger Creek Road, west side of Highway 99. 34 Comment
  UCD169334  Agrostis elliottiana Lowell Ahart 2004-4-6 10729 Butte Peter Ahart Ranch. About 12 miles (air) southeast of Oroville, about 2 1/4 miles north and 1 1/4 miles east of Honcut. 35 Comment
  UCD169427  Coronilla varia Lowell Ahart 2006-6-24 12862 Butte About 4 miles (air) northeast of Cohasset, on Cohasset Ridge, a gated road goes southeast, on the east side of the dirt road (Ponderosa Way), south of an intersection. 1113 Comment
  UCD169602  Cyperus iria Lowell Ahart 2012-10-5 18476 Butte About 1/4 mile west of Larking Road, about 2 miles (air) southwest of the Oroville Airport. South edge of parking area at the restroom, end of road to the Larkin Road Boat Launch Area. 28 Comment
  UCD169604  Carex scabriuscula Lowell Ahart 2012-7-1 18262 Butte About 3 1/2 miles (air) northeast of Belden. About 1/4 mile east of Caribou Road. 807 Comment
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Aug 22 2021
  UCSC010309  Trifolium willdenovii Lowell Ahart 2015-3-14 19951 Butte South side Beatson Hollow, south of where the small stream flows into the stream on the bottom of Beatson Hollow, about 1 1/4 miles northwest of Cherokee Road, about 7 miles north of Oroville 303 Comment
  CAS-BOT-BC114207  Cyperus strigosus Lowell Ahart 1981-9-19 3185 Butte Arch Rock Tunnel, Hwy 70. 550 Comment
  CAS-BOT-BC114739  Cyperus difformis Lowell Ahart 1986-11-9 5446 Butte Ca. 1/10 mi S of the clay burrow for Oroville Dam, 1/4 mi E of Larkin Rd, 36 Comment
  CAS-BOT-BC12911  Lepidium strictum Lowell Ahart 1983-4-10 3929 Butte About 1.5 mile northeast of Highway 99 and Pentz Road. 100 Comment
  CAS-BOT-BC12912  Lepidium strictum Lowell Ahart 1962-4-10 s.n. Butte Peter Ahart Ranch, Honcut. 150 Comment
  CAS-BOT-BC163643  Clarkia purpurea subsp. quadrivulnera Lowell Ahart 1980-5-25 2324 Butte Along Swedes Flat Road, near Bangor 320 Comment
  CAS-BOT-BC216300  Camissonia Lowell Ahart No date on label s.n. Butte Peter Ahart Ranch. Noncut. Comment
  CAS-BOT-BC279861  Cichorium intybus Lowell Ahart 1983-6-26 4125 Butte Along Ponderosa Way, about 2 miles south-east of the intersection of the Oroville Quincy Highway and Ponderosa Way, about 15 miles north-east of Oroville. (Note: the sign gives Big Ridge Road instead of Ponderosa Way) 500 Comment
  CAS-BOT-BC309401  Helenium puberulum Lowell Ahart 1987-6-9 5721 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  CAS-BOT-BC312931  Hypochaeris glabra Lowell Ahart 1980-5-4 2208 Butte Near Hurleton 600 Comment
  CAS-BOT-BC334336  Packera eurycephala var. eurycephala Lowell Ahart 1985-6-30 5088 Butte 100 yards S of the road to the Forbestown Res., S of the Forbestown Ditch, about 2.5 miles NE of Forbestown 883 Comment
  CAS-BOT-BC342382  Logfia gallica Lowell Ahart 1980-5-4 2210 Butte Near Hurleton 600 Comment
  CAS-BOT-BC364547  Senecio vulgaris Lowell Ahart 1986-11-7 5421 Butte East of the Feather River, north of the Oroville Gridley Highway, about 3 miles east of Gridley 28 Comment
  CAS-BOT-BC364727  Sericocarpus oregonensis subsp. californicus Lowell Ahart 1981-8-31 3053 Butte West of Forbestown 750 Comment
  CAS-BOT-BC365983  Sonchus asper Lowell Ahart 1987-7-17 5829 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  CAS-BOT-BC37062  Capsella bursa-pastoris Lowell Ahart 1973-2-21 s.n. Butte Sutter Buttes Region. Peter Ahart Ranch, Honcut. 150 Comment
  CAS-BOT-BC375763  Stephanomeria virgata Lowell Ahart 1981-7-18 2939 Butte 4.5 miles southwest of Oroville 35 Comment
  CAS-BOT-BC388263  Cerastium glomeratum Lowell Ahart 1987-5-12 5625 Butte South of the dirt road, 1 1/2 miles east of Camp 18, south of Lumpkin Ridge Road, about 8 miles north-east of Feather Falls 1280 Comment
  CAS-BOT-BC404285  Urtica urens Lowell Ahart 1979-5-12 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  CAS-BOT-BC40501  Caulanthus lasiophyllus Lowell Ahart 1983-5-7 3966 Butte Peter Ahart Ranch, about 1.5 miles north and 2 and 1/8 miles east of Honcut. 50 Comment
  CAS-BOT-BC407715  Arceuthobium abietinum Lowell Ahart 1988-7-31 6166 Butte 1 air mile NE of Bald Mountain and 4.25 air miles NE of Stirling City 1676 Comment
  CAS-BOT-BC407716  Arceuthobium abietinum Lowell Ahart 1987-10-8 5911 Butte about 1.25 miles S of the Lost Creek Reservoir 1066 Comment
  CAS-BOT-BC413703  Persicaria hydropiper Lowell Ahart 1983-9-17 4437 Butte About 1/4 mile south-east of Stirling City 1100 Comment
  CAS-BOT-BC414193  Polygonum aviculare subsp. depressum Lowell Ahart 1986-11-9 5453 Butte About 1/10 mile south of the clay burrow for Oroville Dam, 1/4 mile east of Larkin Road, about 6 miles south-west of Oroville 36 Comment
  CAS-BOT-BC418949  Persicaria lapathifolia Lowell Ahart 1982-10-6 3844 Butte Along the edges of North Honcut Creek, about 1 mile north and 3 miles east of Honcut, Peter Ahart Ranch 50 Comment
  CAS-BOT-BC421623  Rumex crispus Lowell Ahart 1980-5-10 2233 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC434168  Rumex triangulivalvis Lowell Ahart 1984-6-8 4675 Butte About 1 mile east of the Ponderosa Dam, about 2 miles north of Forbestown 475 Comment
  CAS-BOT-BC460929  Chenopodium album Lowell Ahart 1981-11-6 3230 Butte East of the Gridley Bridge 35 Comment
  CAS-BOT-BC486485  Brodiaea sierrae Lowell Ahart 1985-6-30 5084 Butte Along the road to the Forbestown Res., about 2 1/2 miles north-east of Forbestown. 868 Comment
  CAS-BOT-BC486486  Brodiaea sierrae Lowell Ahart 1983-6-15 4053 Butte Peter Ahart Ranch, Honcut, California. Near large rocks on flood plains along the edges of North Honcut Creek, about 1 1/2 miles north and 3 miles east of Honcut. 50 Comment
  CAS-BOT-BC487507  Calochortus albus Lowell Ahart 1980-4-21 2097 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC504530  Erythronium multiscapideum Lowell Ahart 1982-4-8 3270 Butte Peter Ahart Ranch, Honcut, near North Honcut Creek, about 1 1/4 miles north and 3 miles east of Honcut 50 Comment
  CAS-BOT-BC515978  Narthecium californicum Lowell Ahart 1984-7-19 4760 Butte About 1/2 mile east of Bald Mountain, about 5 miles north-east of Stirling City 1750 Comment
  CAS-BOT-BC68686  Athyrium filix-femina var. californicum Lowell Ahart 1981-9-15 3153 Butte Sierra Nevada - One hald mile N of the Lost Creek Reservoir 1100 Comment
  CAS-BOT-BC75278  Sisymbrium officinale Lowell Ahart 1989-5-23 6247 Butte Along the edges of Avocado Road, about 0.5 mile west of the Oroville Bangor Highway, about 1 mile northwest of Bangor. 213 Comment
  CHSC10666  Hosackia incana Lowell Ahart 1970-5-19 Butte Four miles N. E. of Stirling City. 1066 Comment
  HSC93373  Trifolium gracilentum var. gracilentum L. Ahart 1995-5-30 7580 Butte N Table Mtn., about 7 mi. N of Oroville, about 2 mi. NW of Cherokee Rd., 1/10 mi. SE of the reservoir. 305 Comment
  JEPS104423  Pedicularis racemosa Lowell Ahart 2003-8-26 10543 Butte On the w side of the dirt road, w of where Pinkard Creek flows into the Lost Creek Reservoir, ca 3/8 mi n of the Lost Creek Reservoir Dam, 1 1/8 mi (air) sw of the Sly Creek Reservoir Dam. 996 Comment
  RSA323806  Verbena lasiostachys L. Ahart 1983-6-26 4121 Butte Along Ponderosa way (Big Ridge Road), 2 miles Se of the jct with Oroville-Quincy Hwy, 15 miles NE of Oroville. 500 Comment
  RSA325026  Phacelia cicutaria var. cicutaria L. Ahart 1984-4-4 4541 Butte Peter Ahart Ranch, ca. 2.5 N and 2.5 E of Honcut. 50 Comment
  RSA448320  Clarkia purpurea subsp. viminea L. Ahart, Peter Ahart 1984-5-28 4650 Butte On a large road cutbank along Highway 40, now called Dark Canyon Road, ca. 2 miles E of Old Yankee Hill, ca. 16 miles NE of Oroville. 450 Comment
  RSA713012  Gnaphalium luteoalbum L. Ahart 2005-12-11 12511 Butte Rice Experiment Station between the Main Ditch ad Stine Lateral, on the N side of Hamilton Road, 1/4 mile E of Riceton Hwy 2.25 miles air E of Biggs. 30 Comment
  SBBG128020  Plagiobothrys fulvus L. Ahart 2010-5-16 16684 Butte ca. 1/4 mi S of the parking area, N Table Mtn, ca. 4.5 mi NE of Oroville 371 Comment
  SBBG128722  Trifolium bifidum L. Ahart 2012-5-12 18042 Butte grassy sides of Guardian Trail, ca. 300 yards N of Humboldt Trail, ca. 1/8 mi W of Hwy 32, S part of Upper Bidwell Park, ca. 8 mi (air) NE of Chico 361 Comment
  SBBG128805  Malacothrix floccifera L. Ahart, J. Dittes, J. Guardino 2013-4-26 18627 Butte rocky serpentine outcrop on N side of St Hwy 20, just E of Lake County Line, 12.2 mi (air) ENE of Clear Lake (town), 17.1 mi (air) W of Williams 566 Comment
  SBBG128887  Dactylis glomerata L. Ahart, L. Hanson, J. Guardino 2012-5-23 18107 Butte horse trail, N of Table 32, ca. 50 yards S of Vallombrosa Avenue, SW of Crister, lower Bidwell Park, Chico 70 Comment
  SD122541  Acmispon glaber Lowell Ahart, Peter Ahart 1984-6-10 4691 Butte Along edge of a new subdivision road ca. 1 mi SE of Hurleton, 1/12 mi E of Oak Grove Cemetary, ca. 10 mi E of Oroville; Foothill Woodland 500 Comment
  SD122567  Cryptantha affinis Lowell Ahart, Peter Ahart 1984-6-10 4708 Butte Ca. 2 miles southwest of Forbestown Diversion Dam, northeast of Forbestown 700 Comment
  SEINET10451974  Lotus humistratus Lowell Ahart 1983-5-28 Ahart 4022 Butte Along trail to Feather Falls, ca. 5 mi n of the town of Feather Falls. Yellow Pine Forest; 600 m. 600 Comment
  SEINET10454569  Sanicula bipinnatifida Lowell Ahart, Peter Ahart 1984-6-10 Ahart 4715 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown; Yellow Pine Forest; 700 m. 700 Comment
  SEINET10466870  Cyperus eragrostis Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4102 Butte T21N R5E sec 30. Along Bloomer Hill Rd, ca. 3 mi nw of Oroville-Quincy Hwy, ca. 16 mi ne of Oroville. Yellow Pine Forest; 700 m. 700 Comment
  SEINET10467018  Carex amplifolia Lowell Ahart 1985-6-30 Ahart 5077 Butte East of the dirt road to the Forbestown Res., about 2 1/2 miles north-east of Forbestown. Comment
  SEINET10470794  Marsilea vestita Lowell Ahart, Peter Ahart 1983-7-10 Ahart 4191 Butte T21N R2E sec 25. Ca. 0.5 mi ne of jct of Hwy 99 and Pentz Rd, ca. 13 mi n of Oroville. Valley Grassland; 65 m. 65 Comment
  SEINET10470854  Botrychium multifidum subsp. silaifolium Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4752 Butte Along the road, about 1 1/2 mile south-east of Bald Mountain, 1/4 mile east of Oak Point, about 5 miles north-east of Stirling City. Comment
  SEINET10472446  Juncus howellii Lowell Ahart 1983-8-16 Ahart 4294 Butte T26N R4E nw section 28. Along a small stream that flows into Butte Creek, ca. 1 mi east of Butte Meadows. Yellow Pine Forest; 1450 m. 1450 Comment
  SEINET10474350  Solidago californica Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4148 Butte T20N R5E ne sec 15. Along Ponderosa Way (Big Ridge Rd), ca. 1 mi se of East Fork Canyon Creek, ca. 14 mi ne of Oroville. Foothill Woodland; 575 m. 575 Comment
  SEINET10474586  Crepis pleurocarpa Lowell Ahart 1985-6-30 Ahart 5087 Butte About 2 1/2 miles north-east of Forbestown. Alt. 2850 ft. 868 Comment
  SEINET10475101  Achillea millefolium var. californica Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4225 Butte T21N R6E sec 10? Ca. 2 mi s of Milsap Bar, ca. 23 mi ne of Oroville. Yellow Pine Forest; 750 m. 750 Comment
  SEINET10476023  Clematis lasiantha Lowell Ahart 1988-11-27 Ahart 5946 Butte Chapparral Clematis. On dry red soil, along Poe Power House Road, about 1/2 mile north-west of the Poe Power House, about 1 1/2 miles south-east of Jarbo Gap, Butte County, California. 425 Comment
  SEINET10479078  Chenopodium pumilio Lowell Ahart 1985-10-12 Ahart 5203 Butte At the end of Nelson Bar Road, about 1 mile south of Kunkle Reservoir, about 3 miles south of Paradise. Comment
  SEINET10483421  Potentilla glandulosa Lowell Ahart 1985-5-15 Ahart 4995 Butte 1/8 mile east of the dirt road, about 1 1/2 miles north-east of Concow of Reservoir. Comment
  SEINET10483626  Spiraea douglasii Lowell Ahart 1983-9-17 Ahart 4440 Butte T24N R4E section 34. Ca. 1/4 mi se of Stirling City. Yellow Pine Forest; 1100 m. 1100 Comment
  SEINET10500613  Crucianella angustifolia Lowell Ahart 1984-6-8 Ahart 4681 Butte Along the edge of the dirt road, the road forks here and one goes to Feather Falls and the other to Lumpkin Ridge Rd, ca. 3 mi NE of Ponderosa Dam, ca. 3 mi N of Forbestown; Yellow Pine Forest. 500 Comment
  SEINET10500638  Galium parisiense Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4061 Butte T20N R5E sec 5. Along Bloomer Hill Rd, ca. 1/8 mi w of Oroville-Quincy Hwy, 1.3 mi s of Berry Creek School, ne of Oroville. Foothill Woodland; 400 m. 400 Comment
  SEINET10507086  Agrostis exigua Lowell Ahart, L. Hanson 1985-5-20 Ahart 5028 Butte About 1/2 mile east of Little Bald Rock, N of Oroville. Comment
  SEINET10507512  Panicum dichotomiflorum Lowell Ahart 1983-9-17 Ahart 4429 Butte T22N R4E se section 31. Ca. 1/8 mi ne of Kunkle Reservoir, south of Paradise. Foothill Woodland; 600 m. 600 Comment
  SEINET10507628  Sitanion hystrix Lowell Ahart 1985-6-30 Ahart 5091 Butte About 2 1/2 miles north-east of Forbestown. Alt. 2850 ft. 868 Comment
  SEINET10508401  Stipa pulchra Lowell Ahart 1983-6-15 Ahart 4055 Butte Peter Ahart Ranch, ca. 2.5 mi ne of Honcut. Foothill Woodland; 50 m. Along the edges of North Honcut Creek. 50 Comment
  SEINET10508561  Agrostis diegoensis Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4091 Butte T21N R5E sec 31. Along Bloomer Hill Rd, ca. 1.3 mi w of Oroville-Quincy Hwy, ca. 15 mi ne of Oroville. Foothill Woodland; 450 m. 450 Comment
  SEINET10510279  Agrostis microphylla Lowell Ahart 1988-5-28 Ahart 6007 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville, Butte County. Uncommon. Valley Grassland. 37 Comment
  SEINET10514116  Avena sativa Lowell Ahart 1977-5-17 Ahart 1367 Butte Peter Ahart Ranch, Honcut. On dry gravelly soil in one of the farmed fields. Valley Grassland. 50 Comment
  SEINET10514474  Bromus commutatus Lowell Ahart 1989-5-29 Ahart 6316 Butte Along the gravel road to Forbestown Reservoir, about 1 mile NE of Forbestown Road, about 2 1/2 mile NE of Forbestown. 792 Comment
  SEINET10537546  Velezia rigida Lowell Ahart, James D. Jokerst 1985-5-10 Ahart 4941 Butte Eastern Table Mountain area in gulchlands, about 8 miles north of Oroville. Comment
  SEINET10537562  Minuartia californica Lowell Ahart, James D. Jokerst 1985-3-24 Ahart 4868 Butte West of Lunt Road, about 1/2 mile north of the inter- section of Lunt Road and Highway 70, north of Yankee Hill. Comment
  SEINET10539216  Salix hindsiana Lowell Ahart 1984-6-8 Ahart 4676 Butte Along the dirt road near the water tower, above the generator, ca. 1 mi E of Ponderosa Dam, ca. 2 mi N of Forbestown; Yellow Pine Forest; 475 m. 475 Comment
  SEINET10650513  Carex feta Lowell Ahart 1987-5-6 Ahart 5544 Butte On damp to dry sand, along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  SEINET10789948  Agrostis exarata Lowell Ahart 1988-7-24 Ahart 6127 Butte Spike Bentgrass. On dry soil, silt bar on the bottom of a deep ditch, at the intersection of Black Bart Road and Forbestown Road, about 1 mile west oof Robinson Mill Road, Butte County, California. 732 Comment
  SEINET10789979  Agrostis exarata Lowell Ahart 1982-1 Ahart 3823 Butte On damp red granite soil & on a steep shaded road bank along dirt road by Pinkard Creek, ca. 1/8 mi. N of Lost Creek Reservoir Dam, ca. 1/2 mi NW of Strawberry Valley. Yellow Pine Forest. 1100 Comment
  SEINET10833464  Spergularia rubra Lowell Ahart, Peter Ahart 1984-6-10 Ahart 4707 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown; Yellow Pine Forest; 700 m. 700 Comment
  SEINET10836117  Elymus multisetus Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4114 Butte T21N R5E se/se sec 32. Ca. 1/8 mi e of jct of Oroville-Quincy Hwy & Ponderosa Way (Big Ridge Rd), ca. 15 mi ne of Oroville. Foothill Woodland. 500 Comment
  SEINET10870088  Plagiobothrys stipitatus var. micranthus Lowell Ahart 1983-6-6 Ahart 4034 Butte Peter Ahart Ranch, ca. 2.5 mi ne of Honcut. Valley Grassland; 50 m. 50 Comment
  SEINET10871260  Medicago polymorpha var. brevispina Lowell Ahart, James D. Jokerst 1985-3-24 Ahart 4858 Butte West of Lunt Road, about 1/2 mile north of the inter- section of Lunt Road and Highway 70, north of Yankee Hill. Comment
  SEINET10871901  Platanus racemosa Lowell Ahart 1984-4-3 Ahart 4535 Butte T17N R4E sec 1. Along North Honcut Creek, ca. 1 mile N and 2.7 miles E of Honcut; on Peter Ahart Ranch. Foothill Woodland; 50 m. 50 Comment
  SEINET10874081  Trifolium wormskioldii Lowell Ahart 1983-8-16 Ahart 4312 Butte T26N R4E section 32? On dry dark soil in a small mountain meadow, near Bull Hill Rd, ca. 3.5 mi south of Butte Meadows. Yellow Pine Forest; l600 m. 1600 Comment
  SEINET10874392  Vaccinium membranaceum Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4221 Butte T21N R6E sec 10? Ca. 2 mi s of Milsap Bar, ca. 23 mi ne of Oroville. Yellow Pine Forest; 750 m. 750 Comment
  SEINET10901866  Cinna latifolia Lowell Ahart 1983-8-16 Ahart 4287 Butte T26N R4E nw section 28. Along a small stream that flows into Butte Creek, ca. 1 mi east of Butte Meadows. Yellow Pine Forest; 1450 m. 1450 Comment
  SEINET10904900  Madia rammii Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4157 Butte T20N R5E se sec 11. Along Ponderosa Way (Big Ridge Rd), ca. 1.5 mi e of its jct with East Fork Canyon Creek, ca. 15.5 mi ne of Oroville. Foothill Woodland. 600 Comment
  SEINET10906988  Lotus argophyllus var. fremontii Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4256 Butte T22N R7E sw sec 31. Ca. 3 mi e of Milsap Bar, ca. 25 mi ne of Oroville. Yellow Pine Forest; 1100 m. 1100 Comment
  SEINET10931278  Keckiella breviflora Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4131 Butte T20N R5E sw sec 10. Along Ponderosa Way (Big Ridge Rd), ca. 0.5 mi w of the East Fork Canyon Creek, ca. 14 mi ne of Oroville. Foothill Woodland; 500 m. 500 Comment
  SEINET10931404  Verbena robusta Lowell Ahart 1985-5-6 Ahart 4937 Butte Bottom of Lindo Channel, about 1/10 mile east of Longfellow Ave., Chico. Comment
  SEINET10934471  Briza maxima Lowell Ahart 1970-5-12 Ahart 53 Butte Ca. typical size. On dry soils. Peter Ahart Ranch, Honcut. Foothill Woodland. 46 Comment
  SEINET10965657  Myosurus minimus var. apus Lowell Ahart 1991-5-20 Ahart 6656 Butte On the north side of Rutherford Road, Gray Lodge Waterfowl Management Area, about 1/4 mile west of Pennington Road, about 10 miles southwest of Gridley. Freshwater Marsh. T17N R1E S13. 20 Comment
  SEINET10970838  Quercus kelloggii Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4735 Butte About 1 1/2 mile south-east of Bald Mountain, 3/4 mile west of Oak Point, about 4 miles north-east of Stirling City. Comment
  SEINET11268145  Lupinus albicaulis Lowell Ahart 1993-6-16 6965 Butte South-west of the intersection of Black Bart Road and Forbestown Road, about 3 1/2 (air) miles south-west of Forbestown.; 0 610 Comment
  SEINET12194214  Clarkia rhomboidea L. Ahart, Ahart, P. 1984-1 4651 Butte On a large road cutbank along Hwy. 40, now called Dark Canyon Rd., ca 2 mi E of Old Yankee Hill; 450 Comment
  SEINET260322  Carex Lowell Ahart 1988-4-15 5960 Butte P. Ahart Ranch ca 1.5 mi N and 1 mi E of Honcut ca 12 mi S of Oroville 37 Comment
  SEINET516430  Plagiobothrys greenei Lowell Ahart 1983-1 3970 Butte Normal size plant, growing on dry red gravelly soil along the power line, about 1/2 mi NE of Hwy 99 & Pentz Rd. 61 Comment
  SEINET5716134 Image available Cupressus macnabiana Lowell Ahart 1989-1 5007 Butte Near a steel tower line, west of Rocky Ridge, about 4 miles NE of Jarbo Gap.; Rocky Ridge 732 Comment
  SEINET5716466 Image available Juncus effusus Lowell Ahart 1985-1 5086 Butte About 2.5 mi. NE of Forbestown. 10 yds. S of dirt rd. to the Forbes town Res.; Forbestown 869 Comment
  SEINET5740882 Image available Phoradendron juniperinum Lowell Ahart, Peter Ahart 1985-1 5169 Butte About 2 miles W of Sly Creek Reservoir, E of the intersection of Golden Trout Crossing road on Reville Ridge.; Sly Creek Reservoir 914 Comment
  UCD115555  Draba verna L. Ahart 1973-11-21 150 Butte Peter Ahart Ranch, Honcut. 45 Comment
  UCD121849  Galium parisiense L. Ahart 1982-5-29 3446 Butte Peter Ahart Ranch, ca. 2.3 mi ne of Honcut. 50 Comment
  UCD126109  Verbena litoralis L. Ahart 1982-7-10 3678 Butte 1/4 mi east of HQ, Graylodge Wildlife Refuge, ca. 13 miles southwest of Gridley. 35 Comment
  UCD129711  Calycadenia multiglandulosa L. Ahart 1981-9-26 3208 Butte Peter Ahart Ranch, Honcut. 50 Comment
  UCD137773  Thelypteris nevadensis L. Ahart 1982-9-13 3808 Butte Pinkard Creek, ca. 1/8 mi N of Lost Creek Revervoir Dam, ca. 2.2 mi NW of Strawberry Valley. 1100 Comment
  UCD139163  Brodiaea sierrae Lowell Ahart 1998-7-10 8036 Butte on the southeast side of North Honcut Creek, Peter Ahart Ranch, about 1.5 miles north and 2.75 miles east of Honcut about 12 miles southeast of Oroville. 54 Comment
  UCD142845  Juncus uncialis Lowell Ahart 1974-4-11 363 Butte Peter Ahart Ranch, about 2.25 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  UCD169330  Plantago elongata Lowell Ahart 2004-4-14 10741 Butte About 1 3/4 miles west of Honcut, about 1/8 mile west of the Railroad, about 100 yards west of Wyandotte Creek, in the road gutter and on the lower edge of the south side of Lower Honcut Road. 27 Comment
  UCSB64023  Chenopodium album Ahart, Lowell 1974-9-8 Butte Peter Ahart Ranch, at the old sheep barn, about 1 1/2 miles north and 1 1/4 miles east of Honcut, about 12 miles south of Oroville 45 Comment
  UCSC008252  Trifolium cyathiferum Lowell Ahart 1995-10-3 7671 Butte Along a small branch of Willow Creek, about 1/2 mile west of Humbug Summit. T26N, R5E, near center of Section 13 1981 Comment
  CDA27487  Lupinus microcarpus var. densiflorus L. Ahart 2003-7-14 10390 Colusa On the east and west sides of Bear Valley Road, about 1/4 mile north of the intersection of Bear Valley Road and Wilber Springs Road and bridge. Comment
  CHSC112254  Astragalus gambelianus Lowell Ahart; John Dittes, Josephine Guardino 2013-4-26 18633 Colusa Inner North Coast Range. On the north side of State Highway 20, just east of Lake County Line, 12.2 miles (air) east-northeast of Clear Lake (town), 17.1 miles (air) west of Williams. 566 Comment
  CHSC112277  Calochortus amabilis Lowell Ahart; John Dittes, Josephine Guardino 2013-4-26 18640 Colusa Inner North Coast Range. North side of State Highway 20, just east of Lake County Line, 12.2 miles (air) east-northeast of Clear Lake (town), 17.1 miles (air) west of Williams. 566 Comment
  CHSC112624  Amaranthus californicus Lowell Ahart 2013-10-1 19089 Colusa Inner North Coast Range. Strand of East Park Reservoir, about 2 1/2 miles (air) southeast of Stonyford, about 2 1/2 miles northwest of Lodoga, about 10 miles (air) northwest of Sites. 364 Comment
  CHSC112644  Helianthus bolanderi Lowell Ahart 2013-10-1 19071 Colusa Inner North Coast Range. Strand of East Park Reservoir, about 2 1/2 miles (air) southeast of Stonyford, about 2 1/2 miles northwest of Lodoga, about 10 miles (air) northwest of Sites. 364 Comment
  CHSC113136  Crypsis alopecuroides Lowell Ahart 2013-10-1 19075 Colusa Inner North Coast Range. Strand of East Park Reservoir, about 2 1/2 miles (air) southeast of Stonyford, about 2 1/2 miles northwest of Lodoga, about 10 miles (air) northwest of Sites. 364 Comment
  CHSC115381  Platystemon californicus var. californicus Lowell Ahart 2015-4-1 20002 Colusa Along Bear Valley Road, in Bear Valley, about 50 yards west of Bear Creek, about 6 miles south of Leesville, about 6 miles north of Highway 20. Inner North Coast Range. 395 Comment
  CHSC47439  Lythrum californicum Lowell Ahart 1980-6-11 2371 Colusa On the east side of River Road, where the road dips and floods during high water, about 9 1/2 miles north of Colusa. 30 Comment
  CHSC94403  Agrostis exarata Lowell Ahart 2006-8-9 13167 Colusa North side and under the bridge across Stony Creek, just north of Stonyford. 347 Comment
  CHSC94411  Rorippa nasturtium-aquaticum Lowell Ahart 2006-8-9 13156 Colusa North side and under the bridge across Stony Creek, just north of Stonyford. 347 Comment
  CHSC94516  Stachys ajugoides var. rigida Lowell Ahart 2006-8-22 13235 Colusa North side and under the bridge across Stony Creek, just north of Stonyford. 347 Comment
  CHSC94527  Elymus glaucus subsp. glaucus Lowell Ahart 2006-8-9 13136 Colusa North side and under the bridge across Stony Creek, just north of Stonyford. 347 Comment
  CHSC95011  Stachys ajugoides var. rigida Lowell Ahart 2006-10-31 13539 Colusa On the south side of road M 10, about 6 miles by road west of Stonyford. 583 Comment
  CHSC96689  Portulaca oleracea Lowell Ahart 2006-8-22 13232 Colusa North side and under the bridge across Stony Creek, just north of Stonyford. 347 Comment
  HSC96891  Mimulus layneae L. Ahart 2006-6-11 12664 Colusa E side of an off road trail (Trail 30), about 100 yards S of Fouts Rd., about 5 mi. W of Stonyford 613 Comment
  JEPS108907  Mimulus pilosus Lowell Ahart 2006-8-9 13105 Colusa Gravel bar on the south side of Stony Creek, at Mine Camp, about 3 1/2 miles (air) west of Stonyford 422 Comment
  JEPS108911  Eremocarpus setiger Lowell Ahart 2006-8-9 13103 Colusa Gravel bar on the south side of Stony Creek, at Mine Camp, about 3 1/2 miles (air) west of Stonyford 422 Comment
  JEPS110383  Centaurea solstitialis Lowell Ahart 2006-8-9 13148 Colusa North side and under the bridge across Stony Creek, just north of Stonyford 347 Comment
  JEPS110413  Helianthus bolanderi Lowell Ahart 2006-8-9 13097 Colusa Gravel bar on the south side of Stony Creek, at Mine Camp, about 3 1/2 miles (air) west of Stonyford 455 Comment
  JEPS110533  Ambrosia psilostachya Lowell Ahart 2006-10-31 13518 Colusa About 20 yards northeast of the bridge across Stony Creek, just north of Stonyford 347 Comment
  JEPS120704  Trichostema laxum Lowell Ahart 2013-10-1 19081 Colusa Strand of East Park Reservoir, about 2.5 air miles SE of Stonyford, about 2.5 miles NW of Lodoga, about 10 air miles NW of Sites. Comment
  JEPS120979  Chaenactis glabriuscula var. heterocarpha Lowell Ahart, John Dittes, Josephine Guardino 2013-4-26 18650 Colusa On N side of Hwy 20, just E of Lake County Line, 12.2 air miles ENE of town of Clear Lake, 17.1 air miles W of Williams. Comment
  JEPS120996  Trifolium bifidum Lowell Ahart 2013-5-1 18662 Colusa On the E side of Bear Valley Road, about 2.5 road miles NW of intersection of Hwy 20 and Bear Valley Road. Comment
  JEPS124209  Castilleja attenuata Lowell Ahart 2015-4-10 20005 Colusa About 1/2 mile east of Leesville, about 12 miles (air) northwest of Williams. Comment
  JEPS124249  Sisymbrium orientale Lowell Ahart 2015-4-1 19993 Colusa Inner North Coast Range. 1/2 mile east of Lake County Line, 12 miles (air) east-northeast of Clear Lake (town), 17 miles (air) west of Williams. Comment
  RSA724829  Grindelia camporum L. Ahart 2006-9-26 13345 Colusa Between the deep ditch and the Delevan National Wildlife Refuge, north side of Maxwell Road, about 3 miles west of Colusa Princeton Road, about 5.5 miles east of Maxwell. 24 Comment
  SBBG119882  Persicaria punctata L. Ahart 2006-8-9 13133 Colusa N side and under the bridge across Stony Crk, just N of Stonyford 347 Comment
  CHSC116628  Carduus pycnocephalus subsp. pycnocephalus Lowell Ahart; Josephine Guardino 2016-4-19 20794 Contra Costa Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant. 160 Comment
  CHSC116648  Bromus diandrus Lowell Ahart; Josephine Guardino 2016-4-19 20790 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides ot the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  CHSC116657  Trifolium dubium Lowell Ahart; Josephine Guardino 2016-4-19 20768 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  CDA2623  Scirpus glaucus L. Ahart 2004-6-18 11074 Glenn On the west side of Grindstone Creek, about 100 yards north of Stony Creek, about 50 yards east of Road 306 (Elk Creek Newville Road), west of the Grindstone Rancheria Indian Reservation. Comment
  CHSC112478  Amaranthus albus Lowell Ahart 2013-10-22 19183 Glenn Near an old homestead, strand of Stony Gorge Reservoir, about two miles south of the dam, about 17 miles (air) northwest of Willows. 248 Comment
  CHSC94630  Euphorbia crenulata Lowell Ahart 2006-6-11 12688 Glenn By a large rock in a meadow, east of the road, seep at the start of Black Diamond Creek, about 2 1/2 miles (air) northeast of the North Fork Campground, about 4 miles (air) northwest of Stonyford. 741 Comment
  CHSC94632  Melica geyeri Lowell Ahart 2006-6-11 12698 Glenn On the south side of the road, around rocks, about 1 mile (by road) passed the meadow (west), seep at the start of Black Diamond Creek, about 2 1/2 miles (air) northeast of the North Fork Campground, about 4 1/2 miles (air) northwest of Stonyford. 900 Comment
  CHSC94699  Symphoricarpos albus var. laevigatus Lowell Ahart 2006-6-15 12750 Glenn On the east side of the creek, about 150 yards north of the ford across Stony Creek (Forest Road 18N03), about 2 miles (air) northeast of the North Fork Campground, about 5 1/4 miles (air) west-northwest of Stonyford. 597 Comment
  CHSC94757  Clarkia rhomboidea Lowell Ahart 2006-6-11 12727 Glenn About 100 yards north of the ford across Stony Creek (Forest Road 18N03), about 2 miles (air) northeast of the North Fork Campground, about 5 1/4 miles west-northwest of Stonyford. 595 Comment
  CHSC94773  Navarretia mellita Lowell Ahart 2006-6-15 12749 Glenn On the north side of Forest Road 18N03, about 1/2 mile (by road) east of the ford of Stony Creek, about 2 miles (air) northeast of North Fork Campground, about 5 1/4 miles (air) west-northwest of Stonyford. 644 Comment
  CHSC94775  Erythranthe floribunda Lowell Ahart 2006-6-15 12741 Glenn Burned area, along a small drainage, on the northwest side of Black Diamond Road, about 2 1/2 miles west of the paved road, about 4 3/4 miles (by road) from Stonyford. 749 Comment
  CHSC94869  Cryptantha microstachys Lowell Ahart 2006-6-11 12724 Glenn About 100 yards north of the ford across Stony Creek (Forest Road 18N03), about 2 miles (air) northeast of the North Fork Campground, about 5 1/4 miles west-northwest of Stonyford. 595 Comment
  JEPS102634  Solanum rostratum Lowell Ahart 2001-8-22 9180 Glenn Along the south side of Road 206, about 200 yards SW of the cemetery, about 300 yards SW of Newville Road, west of Orland. 134 Comment
  JEPS106065  Galium parisiense Lowell Ahart 2004-6-18 11099 Glenn Gravel bar on the south side of Salt Creek, south of the bridge across Salt Creek, on the south side of Newville Road, about 1/4 mile west of Newville, about 5 miles (air) west of Black Butte Reservoir 203 Comment
  JEPS108790  Silene gallica Lowell Ahart 2006-6-15 12772 Glenn On the west side of the creek, about 30 yards south of the ford across Stony Creek (Forest Road 18N03), about 2 miles (air) northeast of the North Fork Campground, about 5 1/4 miles (air) west-northwest of Stonyford 595 Comment
  JEPS110177  Juncus ensifolius Lowell Ahart 2006-6-15 12789 Glenn On the west side of Forest Road 18N03, about 1 1/2 mile (air) northeast of North Fork Campground, about 5 3/4 miles (air) west-northwest of Stonyford 630 Comment
  JEPS110181  Juncus bufonius var. congestus Lowell Ahart 2006-6-11 12714 Glenn About 100 yards north of the ford across Stony Creek (Forest Road 18N03), about 2 miles (air) northeast of the North Fork Campground, about 5 1/4 miles west-northwest of Stonyford 595 Comment
  JEPS110212  Cyperus eragrostis Lowell Ahart 2006-6-15 12790 Glenn On the west side of Forest Road 18N03, about 1 1/2 miles (air) northeast of the North Fork Campground, about 5 3/4 miles (air) west-northwest of Stonyford 630 Comment
  JEPS120630  Cyperus fuscus Lowell Ahart 2013-10-22 19196 Glenn Strand of Stony Gorge Reservoir, about 2.5 miles south of the dam, about 17 air miles northwest of Willows. Comment
  JEPS120631  Persicaria lapathifolia Lowell Ahart 2013-10-22 19199 Glenn Strand of Stony Gorge Reservoir, about 2.5 miles south of the dam, about 17 air miles northwest of Willows. Comment
  JEPS120651  Rorippa curvisiliqua var. orientalis Lowell Ahart 2013-10-22 19202 Glenn Strand of Stony Gorge Reservoir, about 2.5 miles south of the dam, about 17 air miles northwest of Willows. Comment
  JEPS120663  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2013-10-19 19133 Glenn Between the river and the large gravel bar, along the west side of the Sacramento River, southwest of the boat launch area, west of Butte City. Comment
  JEPS120676  Digitaria ischaemum Lowell Ahart 2013-10-19 19170 Glenn Between the river and the large gravel bar, along the west side of the Sacramento River, southwest of the boat launch area, west of Butte City. Comment
  JEPS120684  Juncus articulatus subsp. articulatus Lowell Ahart 2013-10-19 19167 Glenn Between the river and the large gravel bar, along the west side of the Sacramento River, southwest of the boat launch area, west of Butte City. Comment
  JEPS120699  Muhlenbergia filiformis Lowell Ahart 2013-10-26 19222 Glenn On south side of Philbrook Creek, below the high water line (strand) of Philbrook reservoir. Comment
  JEPS120744  Mentha pulegium Lowell Ahart 2013-10-19 19144 Glenn On the west side of the backwater, along the west of the Sacramento river, about 300 yards north of the bridge, west of Butte City. Comment
  JEPS120813  Chamaesyce ocellata subsp. rattanii Lowell Ahart 2013-8-8 19012 Glenn North end of Grizzly flat, strand of Black Butter Reservoir, about 9 air miles W of Orland. Comment
  RSA699790  Senecio flaccidus var. douglasii L. Ahart 2004-6-30 11149 Glenn East side of road to Grindstone Rancheria Indian Reservation, east of Grindstone Creek, about 1/4 mile east of Road 306 (Elk Creek Newville Road) 210 Comment
  CHSC10779  Claytonia sibirica Lowell Ahart 1968-6-1 Humboldt Near Pepperwood. 45 Comment
  CHSC11388  Lonicera involucrata var. ledebourii Lowell Ahart 1968-5-31 Humboldt Patrick's Point State Park. 30 Comment
  CDA26635  Astragalus clevelandii L. Ahart 2003-7-14 10403 Lake On the west side of the second causeway going southwest on Bartlett Springs Road, Indian Valley Reservoir. Comment
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Jun 8 2016
  CDA40995  Trichostema laxum L. Ahart 2004-10-4 11436 Lake Below the high water line of Indian Valley Reservoir, along the stream in the northeast part of the reservoir, on the south side of Bartlett Springs Road. Comment
  CHSC114999  Juncus bufonius var. bufonius Lowell Ahart 2015-3-28 20105 Lake About 80 yards north of the south edge of the meadow, Barrel Spring Meadow,about 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 696 Comment
  CHSC115197  Astragalus rattanii var. jepsonianus Lowell Ahart 2015-4-28 20094 Lake In the meadow, about 150 yards west of Barrel Spring Meadow, about 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the interstion of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 696 Comment
  CHSC115380  Ranunculus occidentalis var. occidentalis Lowell Ahart 2015-4-10 20017 Lake Along a small drainage, on the north side of Brim Road, about 3 miles west of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 645 Comment
  CHSC89274  Cupressus sargentii Lowell Ahart 2004-10-14 11454 Lake On the north edge of Bartlett Springs Road (Road M 12), about 1/4 mile northeast of the northeast part of Indian Valley Reservoir. 513 Comment
  CHSC89395  Verbena lasiostachys var. scabrida Lowell Ahart 2004-10-14 11466 Lake On the south side of the bridge across Cache Creek, on the south side of Bartlett Springs Road (Road M 12), about 3 miles west of the northwest part of Indian Valley Reservoir. 502 Comment
  CHSC89426  Lactuca saligna Lowell Ahart 2004-10-4 11447 Lake Below the high water line of Indian Valley Reservoir, along the stream in the northeast part of the reservoir, on the south side of Bartlett Springs Road. 446 Comment
  CHSC89439  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2004-10-4 11437 Lake Below the high water line of Indian Valley Reservoir, along the stream in the northeast part of the reservoir, on the south side of Bartlett Springs Road. 446 Comment
  HSC97068  Hesperocyparis macnabiana L. Ahart 2004-10-14 11455 Lake N edge of Bartlett Springs Rd., 1/8 mi. NE of NE part of Indian Valley Reservoir 497 Comment
  JEPS104390  Agrostis exarata Lowell Ahart 2003-7-14 10406 Lake Along a stream, on the e side of the second causeway going sw on Bartlett Springs Rd, Indian Valley Reservoir. 449 Comment
  JEPS104391  Eriogonum tripodum Lowell Ahart 2003-7-14 10399 Lake On the w side of the second causeway going sw on Bartlett Springs Rd, Indian Valley Reservoir. 449 Comment
  JEPS106009  Echinodorus berteroi Lowell Ahart 2004-10-4 11435 Lake Indian Valley Reservoir, east of the causeway, in the northwest part of the reservoir, on the east side of Bartlett Springs Road. Comment
  JEPS106183  Cupressus sargentii Lowell Ahart 2004-10-14 11454 Lake On the north edge of Bartlett Springs Road (Road M 12), about 1/4 mile northeast of the northeast part of Indian Valley Reservoir 513 Comment
  CDA42959  Lepidium chalepense L. Ahart, John Dittes, Todd Sloat 2013-6-9 18786 Lassen On the east side of the north-south road, on the west side of McArthur Diversion Canal, 2.1 air-miles of Rat Farm Boat Launch, 1.2 air-miles north of McArthur, Fall River Valley, McArthur Swamp. Comment
  CHSC105239  Crepis occidentalis subsp. pumila Lowell Ahart; John Dittes 2010-7-31 16982 Lassen About 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin. 1520 Comment
  CHSC106074  Senecio canus Lowell Ahart; John Dittes 2010-7-31 16990 Lassen About 2,300 feet north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin. 1510 Comment
  CHSC106086  Hesperolinon micranthum Lowell Ahart; John Dittes 2010-7-31 16975 Lassen About 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin. 1520 Comment
  CHSC106175  Salvia aethiopis Lowell Ahart; John Dittes 2010-8-30 17091 Lassen South side of the road, between Elkins Lane and Walters Road, 550 feet south of Modoc County Line, about 4.3 miles (air) west of Adin, about 7.7 miles (air) northeast of Bieber, Big Valley. 1274 Comment
  CHSC108012  Taraxacum officinale Lowell Ahart; John Dittes 2011-6-20 17490 Lassen About 30 yards east of the stream, about 40 yards south of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin. 1520 Comment
  CHSC110898  Carex integra Lowell Ahart; John Dittes 2012-7-9 18299 Lassen In the meadow, about 150 yards southeast of the tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC112404  Nemophila pedunculata Lowell Ahart; John Dittes, Todd Sloat 2013-6-8 18724 Lassen Drainage filled with dirt from construction of a pond, about 30 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC112750  Elatine californica Lowell Ahart; John Dittes 2013-7-22 18882 Lassen Margins of a man made pond, about 150 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC112799  Polypogon monspeliensis Lowell Ahart; John Dittes 2013-7-22 18874 Lassen Drainage filled with dirt from construction of a pond, 40 yards south of the man made pond, about 110 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC112998  Lepidium campestre Lowell Ahart; John Dittes 2013-7-23 18886 Lassen Drainage filled with dirt from construction of a pond, 40 yards south of the man made pond, about 110 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC113078  Amaranthus californicus Lowell Ahart; John Dittes 2013-7-22 18860 Lassen Bottom of a dry bare drainage, 50 yards west of the road levee, about 250 yards south of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC115576  Cirsium Lowell Ahart; John Dittes, Joe DiSalvo 2015-7-14 20322 Lassen On the south side of the levee road, about 300 yards west of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1260 Comment
  CHSC115607  Epilobium densiflorum Lowell Ahart; John Dittes 2015-7-13 20307 Lassen About 100 yards southwest of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber,, Big Valley. 1267 Comment
  CHSC115787  Distichlis spicata Lowell Ahart; John Dittes 2015-7-14 20333 Lassen On the west side of the road, about 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1267 Comment
  CHSC116090  Amaranthus californicus Lowell Ahart; John Dittes 2015-7-13 20317 Lassen About 100 yards southwest of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC116091  Plagiobothrys mollis var. mollis Lowell Ahart; John Dittes 2015-7-13 20306 Lassen About 100 yards southwest of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC116198  Elatine californica Lowell Ahart; John Dittes 2015-7-13 20300 Lassen About 400 yards south of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC117190  Nemophila pedunculata Lowell Ahart; John Dittes 2016-6-7 21010 Lassen About 10 yards west of State Highway 299, Big Valley Mountains, 0.4 mile (air) northeast of Big Valleuy Summit, 5.0 miles (air) southwest of Bieber. 1397 Comment
  CHSC117191  Galium aparine Lowell Ahart; John Dittes 2016-6-7 21020 Lassen 10 yards west of State Highway 299, Big Valley Mountains, 0.4 mile (air) northeast of Big Valley Summit, 5.0 miles (air) southwest of Bieber. 1397 Comment
  CHSC117218  Festuca microstachys var. microstachys Lowell Ahart; John Dittes 2016-6-7 21002 Lassen Near Stonebreaker Road, 0.7 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  CHSC117276  Bidens cernua Lowell Ahart; John Dittes 2016-7-15 21225 Lassen On the west side of the road about 600 yards south of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC117299  Rumex crispus Lowell Ahart; John Dittes 2016-7-13 21134 Lassen Along the west edge of the pond, 90 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  CHSC117508  Taraxacum officinale Lowell Ahart; John Dittes 2016-7-13 21112 Lassen 100 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at southern slope of Big Valley. 1289 Comment
  CHSC117528  Cyperus squarrosus Lowell Ahart; John Dittes 2016-7-13 21139 Lassen Scattered along the south edge of the pond, 90 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  CHSC117537  Potamogeton diversifolius Lowell Ahart; John Dittes 2017-7-13 21149 Lassen Southwest part of pond, 150 yares east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  CHSC117548  Apera interrupta Lowell Ahart; John Dittes 2016-7-13 21143 Lassen 100 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 (air) miles east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  CHSC43469  Cynoglossum occidentale Lowell Ahart; John Thomas Howell 1974-7-9 515 Lassen Along the edge of Eagle Lake Road, about 5 miles north-west of Susanville. 1584 Comment
  CHSC47521  Juncus balticus Lowell Ahart; John Thomas Howell 1974-7-9 542 Lassen At the south edge of Eagle Lake. 1584 Comment
  CHSC84392  Eriogonum microthecum var. ambiguum Lowell Ahart 2003-8-17 10518 Lassen Small drainage, about 100 yards west of the cattle guard, on the southeast side of Smoke Creek Ranch Road, about 8-9 miles (air) northeast of Highway 395, about 30 miles (air) northeast of Susanville. 1450 Comment
  CHSC91290  Ceanothus velutinus var. velutinus Lowell Ahart; John Dittes 2005-6-2 11943 Lassen Along a small stream, about 1 1/2 miles northeast of the Anderson Ranch home, Long Valley, about 6 miles (air) north of the intersection of Scott Road and Highway 70, 7.5 miles (air) northwest of Hallelujah Junction. 1601 Comment
  CHSC91292  Perideridia bolanderi Lowell Ahart; John Dittes 2005-6-1 11916 Lassen Along a small wash, on the east side of a poor road, Long Valley, about 4 1/2 miles (air) north of the intersection of Scott Road and Highway 70, 6.0 miles (air) northwest of Hallelujah Junction. 1425 Comment
  CHSC91294  Boechera retrofracta Lowell Ahart; John Dittes 2005-6-2 11926 Lassen Along the poor dirt road, about 1/4 mile west of the Anderson Ranch home, Long Valley, about 4 3/4 miles (air) north of the intersection of Scott Road and Highway 70, 6.5 miles (air) northwest of Hallelujah Junction. 1498 Comment
  CHSC91328  Trifolium longipes subsp. hansenii Lowell Ahart; John Dittes 2005-6-1 11867 Lassen On the west side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction. 1448 Comment
  CHSC93566  Castilleja angustifolia Lowell Ahart; John Dittes 2005-6-2 11941 Lassen Long Valley, along a poor dirt road, about 1 1/2 miles northeast of the Anderson Ranch home, about 6 miles (air) north of the interesection of Scott Road and Highway 70, 7.5 miles (air) northwest of Hallelujah Junction. 1601 Comment
  CHSC93692  Castilleja tenuis Lowell Ahart; John Dittes 2005-6-1 11902 Lassen On the north side of Scott Road, east side of the railroad underpass, Long Valley, about 4 3/4 miles (air) north of the intersection of Scott Road and Highway 70, 6.2 miles (air) northwest of Hallelujah Junction. 1459 Comment
  CHSC93694  Camissonia pubens Lowell Ahart; John Dittes 2005-6-2 11993 Lassen Along a small wash, east side of a poor dirt road, Long Valley, about 4 1/2 miles (air) northeast of the intersection of Scott Road and Highway 70, 6.0 miles (air) northwest of Hallelujah Junction. 1427 Comment
  CHSC93707  Juncus capillaris Lowell Ahart; John Dittes 2005-6-2 11959 Lassen Meadow, along a poor dirt road, about 1 mile east of the Anderson Ranch home, Long Valley, about 4 1/2 miles (air) north of the intersection of Scott Road and Highway 70, 6.0 miles (air) northwest of Hallelujah Junction. 1425 Comment
  CHSC99108  Senecio hydrophilus Lowell Ahart; John Dittes 2008-6-20 14907 Lassen About 100 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1263 Comment
  CHSC99296  Acmispon denticulatus Lowell Ahart; John Dittes 2008-6-20 14970 Lassen About 100 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1263 Comment
  CHSC99303  Trifolium longipes subsp. hansenii Lowell Ahart; John Dittes 2008-6-20 14923 Lassen About 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1263 Comment
  CHSC99305  Geum triflorum Lowell Ahart; John Dittes 2008-6-19 14872 Lassen Along a small wash, about 100 yards east of Willow Creek, about 120 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber. 1578 Comment
  CHSC99532  Erythranthe guttata Lowell Ahart; John Dittes 2008-6-20 14978 -A Lassen Edge of vernal pools, about 100 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1263 Comment
  CHSC99534  Lepidium campestre Lowell Ahart; John Dittes 2008-6-20 14957 Lassen In meadow, about 100 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1263 Comment
  CHSC99731  Porterella carnosula Lowell Ahart; John Dittes 2008-6-20 14963 Lassen Edge of vernal pools, about 100 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7.0 miles (air) northeast of Bieber. 1263 Comment
  HSC103924  Castilleja tenuis L. Ahart, John Dittes 2008-6-22 15027 Lassen Big Valley; ~5 mi. (air) NE of Bieber, and ~2.1 mi. (air) NE of the Headquarters at Ash Creek State Wildlife Area 1263 Comment
  JEPS104125  Panicum capillare Lowell Ahart 2003-8-17 10517 Lassen On the w side of the paved road, on the e side of Highway 36, ca 1/4 mi sw of the Susan River, ca 8 mi (air) sw of Susanville. 1433 Comment
  JEPS107306  Gayophytum racemosum Lowell Ahart, John Dittes 2005-6-1 11884 Lassen Along a poor dirt road, west of Scott Road, Long Valley, about 2 1/2 miles (air) northwest of the intersection of Scott Road and Highway 70, 4.0 miles (air) northwest of Hallelujah Junction 1438 Comment
  JEPS107463  Muilla transmontana Lowell Ahart, John Dittes 2005-6-1 11855 Lassen On the west side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction 1448 Comment
  JEPS107813  Thysanocarpus curvipes var. curvipes Lowell Ahart, John Dittes 2005-6-2 11953 Lassen Along a poor dirt road, about 1/2 mile west of the Anderson Ranch home, Long Valley, about 4 3/4 miles (air) northwest of the intersection of Scott Road and Highway 70, 6.6 miles (air) northwest of Hallelujah Junction 1512 Comment
  JEPS107868  Salix lasiandra var. lasiandra Lowell Ahart, John Dittes 2005-6-2 11925 Lassen Long Valley, along a small ditch, along the road, near the Anderson Ranch home, about 4 3/4 miles (air) north of the interesection of Scott Road and Highway 70, 6.2 miles (air) northwest of Hallelujah Junction 1459 Comment
  JEPS114750  Castilleja tenuis Lowell Ahart, John Dittes 2008-6-22 15027 Lassen Along a small natural drainage, about 20 yards west of the road levee, open meadow area, in Big Valley, about 2.1 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5.0 miles (air) northeast of Bieber 1262 Comment
  JEPS114751  Eriogonum umbellatum var. modocense Lowell Ahart, John Dittes 2008-6-19 14882 Lassen Open hillside, about 100 yards east of Willow Creek, about 120 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber 1578 Comment
  JEPS114763  Trifolium beckwithii Lowell Ahart, John Dittes 2008-6-20 14906 Lassen About 100 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7.0 miles (air) northeast of Bieber 1263 Comment
  JEPS114859  Apera interrupta Lowell Ahart, John Dittes 2008-6-19 14868 Lassen About 100 yards east of Willow Creek, about 120 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber 1578 Comment
  JEPS117368  Eriogonum nudum var. nudum Lowell Ahart, John Dittes 2010-8-30 17088 Lassen South side of the road, between Elkins Lane and Walters Road, 550 feet south of Modoc County Line, about 4.3 miles (air) west of Adin, about 7.7 miles (air) northeast of Bieber, Big Valley 1274 Comment
  JEPS117483  Sanguisorba annua Lowell Ahart, John Dittes 2010-7-31 17003 Lassen On the north side of the road, about 10 yards east of the large culvert, where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin 1516 Comment
  JEPS117497  Tragopogon dubius Lowell Ahart, John Dittes 2010-7-31 16998 Lassen About 5 yards north of the large culvert, where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin 1516 Comment
  JEPS117572  Gayophytum diffusum subsp. diffusum Lowell Ahart, John Dittes 2010-7-31 17020 A Lassen About 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin 1520 Comment
  JEPS118269  Alyssum minus subsp. micranthum Lowell Ahart, John Dittes 2011-6-20 17493 Lassen About 20 yards east of the stream, about 80 yards north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin 1520 Comment
  JEPS118270  Holosteum umbellatum subsp. umbellatum Lowell Ahart, John Dittes 2011-6-20 17482 Lassen On the east bank of the stream, about 40 yards south of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin 1520 Comment
  JEPS118271  Athysanus pusillus Lowell Ahart, John Dittes 2011-6-20 17491 Lassen About 40 yards east of the stream, about 70 yards north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin 1520 Comment
  JEPS118350  Juncus hemiendytus var. hemiendytus Lowell Ahart, John Dittes 2011-6-20 17480 Lassen About 15 yards west of the stream, about 40 yards north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin 1520 Comment
  JEPS118446  Ranunculus occidentalis var. occidentalis Lowell Ahart, John Dittes 2011-6-20 17479 Lassen Meadow, about 15 yards east of the stream, about 40 yards south of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin 1520 Comment
  JEPS118455  Claytonia rubra subsp. rubra Lowell Ahart, John Dittes 2011-6-20 17486 Lassen About 15 yards east of the stream, about 40 yards south of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin 1520 Comment
  JEPS119646  Plagiobothrys mollis var. mollis Lowell Ahart, John Dittes 2012-7-9 18283 Lassen Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. Comment
  JEPS120868  Callitriche heterophylla Lowell Ahart, John Dittes, Todd Sloat 2013-6-8 18750 Lassen About 30 yards N of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley. Comment
  JEPS121289  Juncus nevadensis var. nevadensis Lowell Ahart, John Dittes 2013-7-23 18906 Lassen On the SW side of a man-made pond, about 160 yards NW of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley. Comment
  JEPS121294  Rumex triangulivalvis Lowell Ahart, John Dittes 2013-7-22 18867 Lassen 30 yards S of the man-made pond, about 120 yards E of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley. Comment
  JEPS122164  Deschampsia cespitosa subsp. cespitosa Lowell Ahart 2014-8-20 19719 Lassen 0.8 mile west of Forest Road 32N22 (Westwood Logging Road), about 4.2 miles southeast (by road) from Bogard Rest Area on the south side of Highway 44. Comment
  JEPS123854  Mentha arvensis Lowell Ahart, John Dittes 2015-7-14 20337 Lassen About 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. Comment
  JEPS127179  Solanum dulcamara Lowell Ahart, John Dittes 2016-7-15 21226 Lassen Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. Comment
  JEPS127205  Cystopteris fragilis Lowell Ahart, John Dittes 2016-6-7 21007 Lassen About 10 yards west of State Highway 299, Big Valley Mountains, 0.4 mile (air) northeast of Big Valley Summit, 5.0 miles (air) southwest of Bieber. Comment
  JEPS127270  Epilobium torreyi Lowell Ahart, John Dittes 2016-7-13 21126 Lassen 60 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. Comment
  JEPS127350  Rhaponticum repens Lowell Ahart, John Dittes 2016-7-13 21103 Lassen 200 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. Comment
  JEPS127351  Artemisia ludoviciana subsp. ludoviciana Lowell Ahart, John Dittes 2016-7-13 21105 Lassen 200 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. Comment
  JEPS95902  Symphyotrichum frondosum Lowell Ahart and Vernon H. Oswald 1999-9-13 8210 Lassen just S of the parking area, about 1 mi S of the sign in station, Honey Lake Wildlife Area, 5 1/2 mi (air) SE of Standish 1207 Comment
  JEPS95904  Salsola tragus Lowell Ahart and Vernon H. Oswald 1999-9-13 8205 Lassen on the east side of the dirt road and 1/2 mile south of the sign in station; Honey Lake Wildlife Area; 4 1/2 miles (air) southeast of Standish 1207 Comment
  RSA0035398  Veronica peregrina subsp. xalapensis Lowell Ahart, John Dittes 2008-6-20 14924 Lassen About 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1263 Comment
  RSA0039530  Rumex triangulivalvis Lowell A. Ahart, John Dittes 2012-7-9 18302 Lassen About 100 yards southeast of the tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  RSA0059628  Penstemon rydbergii var. oreocharis Lowell Ahart, John Dittes 2011-6-20 17502 Lassen About 40 yards west of the stream, about 50 yards north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin. 1520 Comment
  RSA0080121  Elatine californica Lowell Ahart, John Dittes 2100-06-21 17527 Lassen Between Elkins Lane and Walters Road, about 100 yards south of the old barn, 500 feet south of Modoc County Line, about 4.3 miles (air) west-southwest of Adin, about 7.3 miles (air) northeast of Bieber, Big Valley. 1268 Comment
  RSA0105574  Castilleja tenuis Lowell Ahart, John Dittes 2013-7-22 18840 Lassen About 30 yards southeast of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  RSA715618  Sisymbrium altissimum L. Ahart, John Dittes 2005-6-1 11850 Lassen On the west side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, About 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction. 1449 Comment
  RSA715656  Penstemon deustus subsp. heterander L. Ahart, John Dittes 2005-6-2 11979 Lassen North side of a poor dirt road, Long Valley, about 4.5 mi. (air) northeast of the intersection of Scott Rd. and Highway 70, 5.7 mi. (air) northwest of Halleluiah Junction. 1411 Comment
  RSA715977  Salix lucida subsp. lasiandra L. Ahart, John Dittes 2005-6-2 11925 Lassen Along a small ditch. Along the road. Near the Anderson Ranch home. Long Valey. About 4.75 miles (air) N of the intersection of Scott Rd and Hwy 70. 6.2 miles (air) NW of Hallelujah Jct. 1460 Comment
  RSA716264  Delphinium nuttallianum L. Ahart 2005-6-2 11955 Lassen Along poor dirt road, 1 mile E of Anderson Ranch home, Long Valley, 4.5 miles air N of the intersection of Scott Road and Hwy 70, 6 miles NW of Hallelujah jct. 1426 Comment
  RSA768029  Sidalcea glaucescens L. Ahart, John Dittes 2010-7-31 17016 Lassen About 50 yards east of the large culvert, where the road crosses Hunsinger Draw, 1.9 air miles northwest of Moll Reservoir, 2.8 air miles west of Ash Valley, 8.4 air miles southeast of Adin 1516 Comment
  RSA768781  Eriogonum vimineum L. Ahart, John Dittes 2010-7-31 17018 Lassen About 50 yards east of the large culvert, where the road crosses Hunsinger Draw, 1.9 air miles northwest of Moll Reservoir, 2.8 air miles west of Ash Valley, 8.4 air miles southeast of Adin 1516 Comment
  SBBG128040  Sidalcea glaucescens L. Ahart, J. Dittes 2010-7-31 17016 Lassen S side of the rd, ca. 50 yards E of the large culvert, where the rd crosses Hunsinger Draw, 1.9 mi NW of Moll Reservoir, 2.8 mi W of Ash Valley, 8.4 mi SE of Adin 1516 Comment
  SBBG128753  Sisyrinchium bellum L. Ahart, J. Dittes 2008-6-20 14964 Lassen ca. 10 yards W of where the levee rd crosses Big Valley Canal, in Big Valley, ca. 4 mi (air) NE of the Headquarters at Ash Crk State Wildlife Area, ca. 7 mi (air) NE of Bieber 1263 Comment
  SEINET13710039  Atriplex triangularis Lowell William Ahart, Lowell William Ahart 1999-1 8209 Lassen Honey Lake Wildlife Area, 5.5 Mi SE Standish Comment
  CDA34687  Atriplex triangularis L. Ahart 2009-11-12 16515 Mendocino On the south side of the Russian River, below the high water line of Lake Mendocino, about 200 yards south of Highway 20. Comment
  CHSC103444  Alisma lanceolatum Lowell Ahart 2009-11-12 16526 Mendocino South edge of the mud flat on the south side of the Russian River, below the high water line of Lake Mendocino, about 200 yards south of Highway 20. 230 Comment
  CHSC112281  Isoetes nuttallii Lowell Ahart; John Dittes, Josephine Guardino 2013-4-24 18586 Mendocino North Coast. South of the entrance and road, 2.9 miles (air) northwest of Pt. Arena, 3.3 miles (air) southwest of Manchester. 15 Comment
  CHSC112308  Sonchus asper subsp. asper Lowell Ahart; John Dittes, Josephine Guardino 2013-4-26 18603 Mendocino North Coast. Base of eroding cliffs, above the sand beach, 1.1 miles (air) southeast of Anchor Bay, 2.0 miles (air) northwest of mouth of Gualala River. 3 Comment
  JEPS115141  Phyla nodiflora var. nodiflora Lowell Ahart 2009-11-12 16537 Mendocino On the south side of the Russian River, below the high water line of Lake Mendocino, about 200 yards south of Highway 20 230 Comment
  JEPS115209  Polygonum punctatum Lowell Ahart 2009-11-12 16522 Mendocino South edge of the mud flat on the south side of the Russian River, below the high water line of Lake Mendocino, about 200 yards south of Highway 20 230 Comment
  CDA42992  Trifolium gracilentum var. gracilentum L. Ahart, John Dittes, Josephine Guardino 2008-4-11 14626 Merced About 40 yards southeast of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. Comment
  CHSC100025  Hirschfeldia incana Lowell Ahart; John Dittes 2008-8-21 15230 Merced On the south bank of Dutchman Slough, about 100 yards east of the west fence, northwest of the windmill and corral, about 1/4 mile southwest of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. 49 Comment
  CHSC98820  Capsella bursa-pastoris Lowell Ahart; John Dittes, Josephine Guardino 2008-4-11 14650 Merced Along the fence, about 20 yards east of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. 53 Comment
  CHSC98822  Trifolium gracilentum var. gracilentum Lowell Ahart; John Dittes, Josephine Guardino 2008-4-11 14626 Merced Above the high margins of vernal pools, about 40 yards southeast of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. 53 Comment
  CHSC98824  Psilocarphus tenellus var. globiferus Lowell Ahart; John Dittes, Josephine Guardino 2008-4-11 14606 Merced Bottom of vernal pools, about 20 yards southeast of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. 53 Comment
  CHSC98843  Sinapis arvensis Lowell Ahart; John Dittes, Josephine Guardino 2008-4-13 14696 Merced Along the fence, about 50 yards west of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. 53 Comment
  CHSC98845  Veronica peregrina subsp. xalapensis Lowell Ahart; John Dittes, Josephine Guardino 2008-4-11 14655 Merced Along the fence, about 20 yards east of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. 53 Comment
  CHSC98851  Vicia sativa subsp. sativa Lowell Ahart; John Dittes, Josephine Guardino 2008-4-13 14693 Merced Along the fence, about 50 yards west of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. 53 Comment
  CHSC98865  Lolium multiflorum Lowell Ahart; John Dittes, Josephine Guardino 2008-4-12 14685 Merced Along the fence, about 50 yards west of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. 53 Comment
  CHSC99166  Juncus bufonius var. bufonius Lowell Ahart; John Dittes, Josephine Guardino 2008-4-11 14646 Merced On dry soil, along the fence, about 20 yards east of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. 53 Comment
  CHSC99936  Distichlis spicata Lowell Ahart; John Dittes 2008-8-21 15255 Merced 30 yards southeast of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. 53 Comment
  JEPS114386  Juncus bufonius var. congestus Lowell Ahart, John Dittes, Josephine Guardino 2008-4-11 14647 Merced Along the fence, about 20 yards east of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced 53 Comment
  JEPS114444  Dichelostemma capitatum subsp. capitatum Lowell Ahart, John Dittes, Josephine Guardino 2008-4-12 14671 Merced Slopes of mounds, about 1/2 mile south of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced 53 Comment
  JEPS114536  Helianthus annuus Lowell Ahart, John Dittes 2008-8-21 15224 Merced On the banks of Dutchman Slough, about 220 yards south of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced 53 Comment
  JEPS114545  Atriplex fruticulosa Lowell Ahart, John Dittes 2008-8-21 15234 Merced About 1/2 mile south of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced 53 Comment
  JEPS114569  Stellaria media Lowell Ahart, John Dittes, Josephine Guardino 2008-4-11 14621 Merced Along the fence, about 20 yards east of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced 53 Comment
  JEPS114570  Cerastium glomeratum Lowell Ahart, John Dittes, Josephine Guardino 2008-4-11 14634 Merced Above the high margins of vernal pools, about 40 yards southeast of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced 53 Comment
  JEPS114571  Lasthenia fremontii Lowell Ahart, John Dittes, Josephine Guardino 2008-4-11 14603 Merced Bottom and sides of vernal pools, about 20 yards southeast of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced 53 Comment
  JEPS114593  Trifolium depauperatum var. truncatum Lowell Ahart, John Dittes, Josephine Guardino 2008-4-11 14625 Merced Above the high margins of vernal pools, about 40 yards southeast of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced 53 Comment
  JEPS114604  Erodium brachycarpum Lowell Ahart, John Dittes, Josephine Guardino 2008-4-11 14628 Merced Above the high margins of vernal pools and on the mounds, about 40 yards southeast of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced 53 Comment
  JEPS114678  Phalaris lemmonii Lowell Ahart, John Dittes, Josephine Guardino 2008-4-11 14645 Merced Bottom of a vernal pool, about 20 yards southeast of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced 53 Comment
  JEPS114866  Vulpia bromoides Lowell Ahart, John Dittes, Josephine Guardino 2008-4-11 14641 Merced Grassy mounds, about 40 yards southeast of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced 53 Comment
  RSA0108930  Trifolium microcephalum Lowell Ahart, John Dittes, Josephine Guardino 2008-4-11 14623 Merced About 40 yards southeast of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. 53 Comment
  RSA0108931  Plagiobothrys leptocladus Lowell Ahart, John Dittes, Josephine Guardino 2008-4-12 14676 Merced About 1/2 mile south of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. 53 Comment
  RSA768853  Epilobium ciliatum subsp. glandulosum L. Ahart, John Dittes 2008-8-21 15240 Merced Dutchman Slough, about 220 yards south of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. 53 Comment
  RSA768855  Hemizonia fitchii L. Ahart, John Dittes 2008-8-21 15225 Merced 30-80 yards southwest of the wire gate on south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. 53 Comment
  RSA769022  Datura wrightii L. Ahart, John Dittes 2008-8-21 15246 Merced 30-80 yards southwest of the wire gate on south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. 53 Comment
  SBBG128590  Centromadia pungens subsp. pungens L. Ahart, J. Dittes 2008-8-21 15226 Merced 30 yards SE of wire gate on the S side of Sandy Mush Rd, 3.7 mi W of Hwy 99, ca. 8.5 mi SSE of Merced 53 Comment
  CHSC100382  Centaurea squarrosa Lowell Ahart; John Dittes 2008-8-25 15300 Modoc In the middle of a poor dirt road, on the west side of the Pit River, about 1/8 mile east of County Road 91,about 3.8 miles (air) north-northeast of Lookout. 1273 Comment
  CHSC106323  Capsella bursa-pastoris Lowell Ahart; John Dittes 2010-8-31 17129 Modoc Elkins Lane, at the bridge across Ash Creek, Ash Creek State Wildlife Area, about 4.3 miles (air) west of Adin, about 7.7 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC106332  Nicotiana attenuata Lowell Ahart; John Dittes 2010-8-30 17081 Modoc Parking Area west of the old barn, on the west side of Elkins Lane, Ash Creek State Wildlife area, 320 feet north of Lassen County Line, about 4.4 miles (air) west of Adin, about 7.2 miles (air) northeast of Bieber, Big Valley. 1266 Comment
  CHSC109636  Sagittaria latifolia Lowell Ahart; John Dittes 2012-7-11 18336 Modoc Vernal pool like areas on the bottom of a gravel pit, north edge of the meadow, about 1/8 mile east of the parking area on the east side of Elkins Lane, Ash Creek State Wildlife Area, about 4 miles (air) west of Adam, about 8 miles (air) northeast of Bieber, Big Valley. 1266 Comment
  CHSC109645  Poteridium annuum Lowell Ahart; John Dittes 2012-7-11 18341 Modoc Along a poor mowed road, about 1/2 mile southeast of the Pilot butte Parking Lot, north edge of Ash Creek floodplain, about 1.5 miles (air) south of County Road 87, about 7.5 miles (air) west of Adin, about 10.2 miles (air) east of Lookout, Big Valley. 1260 Comment
  CHSC110973  Cirsium occidentale var. candidissimum Lowell Ahart; John Dittes 2012-7-12 18366 Modoc North bank of Ash Creek, south of the gravel pit, about 1/8 mile east of the parking area on the east side of Elkins Lane, Ash Creek State Wildlife Area, about 4 miles (air) west of Adin, about 8 miles (air) northeast of Bieber, Big Valley. 1266 Comment
  CHSC111108  Elytrigia repens Lowell Ahart; John Dittes 2012-7-12 18377 Modoc On the east side of Elkins Lane, about 100 yards north of the bridge across Ash creek, Ash Creek State Wildlife Area, about 4.3 miles (air) west of Adin, about 7.7 miles (air) northeast of Bieber, Big Valley 1262 Comment
  CHSC112052  Lupinus lepidus var. sellulus Lowell Ahart; John Dittes 2012-7-11 18343 Modoc About 1/2 mile southeast of the Pilot Butte Parking Lot, north edge of Ash Creek floodplain, about 1.5 miles (air) south of County Road 87, about 7.5 miles (air) west of Adin, about 10.2 miles (air) east of Lookout, Big Valley. 1260 Comment
  CHSC112776  Elatine californica Lowell Ahart; John Dittes 2013-7-24 18918 Modoc Around a man made pond, north side of Ash Creek Floodplain, 0.54 mile (air) southeast of Pilot Butte Parking Area, 1.1 miles (air) south of County Road 87, 6.8 miles (air) west of Adin, Big Valley. 1263 Comment
  CHSC115531  Mentha arvensis Lowell Ahart; John Dittes 2015-7-16 20359 Modoc North edge of Ash Creek (destroyed), southeast of the gravel pit (destoryed), about 1/8 mile east of the parking area on the east side of Elkins Lane, Ash Creek State Wildlife Area, about 4 miles (air) west of Adin, about 8 miles (air) northeast of Beiber, Big Valley. 1267 Comment
  CHSC116066  Cirsium arvense Lowell Ahart; John Dittes 2015-7-16 20384 Modoc North edge of Ash Creek (destroyed), southeast of gravel pit (destroyed), about 1/8 mile east of parking area on east side of Elkins Lane, Ash Creek State Wildlife Area, about 4 miles (air) west of Adin, about 8 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC116073  Trifolium repens Lowell Ahart; John Dittes 2015-7-16 20366 Modoc North edge of Ash Creek (destroyed), southeast of the gravel pit (destroyed), about 1/8 mile east of the parking area on the east side of Elkins Lane, Ash Creek State Wildlife Area, about 4 miles (air) west of Adin, about 8 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC117139  Amsinckia menziesii Lowell Ahart; John Dittes 2016-7-14 21159 Modoc West side of a new pond, south of Ash Creek Canal (now filled in), south of Ash Creek, Ash Creek State Wildlife Area, 0.79 mile {air} south of County Road 87, 1.73 miles (air) dwest of Adin, Big Valley. 1273 Comment
  CHSC117231  Trifolium hybridum Lowell Ahart; John Dittes 2016-7-16 21240 Modoc Between the first pond and the second going west, south of Ash Creek Canal (now filled in), south of Ash Creek, Ash Creek State Wildlife Area, 0.79 miles (air) south of County Road 87, 1.75 miles (air) west of Adin, Big Valley. 1273 Comment
  CHSC117250  Phleum pratense Lowelll Ahart; John Dittes 2016-7-16 21248 Modoc Between the first pond and the second going west, south of Ash Creek Canal (now filled in), south of Ash Creek, Ash Creek Staate Wildlife Area, 0.79 miles (air) west of Adin, Big Valley. 1273 Comment
  CHSC117251  Downingia bacigalupii Lowell Ahart; John Dittes 2016-7-14 21165 Modoc West side of new pond, south of Ash Creek Canal (now filled in), south of Ash Creek, Ash Creek State Wildlife Area, 0.79 mile (air) south of County Road 87, 1.73 miles (air) west of Adin, Big Valley. 1273 Comment
  CHSC117263  Bidens cernua Lowell Ahart; John Dittes 2016-7-14 21152 Modoc Northwest of a new pond, south bank of Ask Creek Canal (now filled in), south of Ash Creek, Ash Creek State Wildlife Area, 0.79 mile (air) south of County Road 87, 1.73 miles (air) west of Adin, Big Valley. 1273 Comment
  CHSC117356  Trifolium hybridum Lowell Ahart; John Dittes 2016-7-14 21172 Modoc West side of a new pond, south of Ash Creek Canal (now filled in), south of Ash Creek, Ash Creek State Wildlife Area, 0.79 mile (air) south of County Road 87, 1.73 miles (air) west of Adin, Big Valley. 1273 Comment
  CHSC117369  Elatine californica Lowell Ahart; John Dittes 2016-7-14 21211 A Modoc Strand of a new pond, south of Ash Creek Canal (now filled in), south of Ash Creek, Ash Creek State Wildlife Area, 0.79 mile (air) south of County Road 87, 1.73 miles (air) west of Adin, Big Valley. 1273 Comment
  CHSC117370  Elatine rubella Lowell Ahart; John Dittes 2016-7-14 21169 Modoc New sides of a new pond, south of Ash Creek Canal (now filled in), south of Ash Creek, Ash Creek State Wildlife Area, 0.79 mile (air) south of County Road 87, 1.73 miles (air) west of Adin, Big Valley. 1273 Comment
  CHSC99245  Lemna minuta Lowell Ahart; John Dittes 2008-6-21 15008 Modoc On shallow water 6-8 inches deep, along a deep natural drainage, about 30 yards west of the levee, mountain meadow, in Big Valley about 3.6 miles (air) north of the Headquarters at Ash Creek State Wildlife Area, about 6.4 miles (air) northeast of Bieber. 1269 Comment
  CHSC99251  Chenopodium Lowell Ahart; John Dittes 2008-6-21 15010 Modoc Along a large levee, mountain meadow, in Big Valley, about 4.3 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7.3 miles (air) northeast of Bieber. 1266 Comment
  CHSC99901  Acmispon americanus var. americanus Lowell Ahart; John Dittes 2008-8-25 15302 Modoc On the west bank (flood plain) of the Pit River, about 1/8 mile east of County Road 91, about 3.8 miles (air) north-northeast of Lookout. 1273 Comment
  JEPS114357  Lepidium lasiocarpum Lowell Ahart, John Dittes 2008-8-26 15332 Modoc On the sides of County Road 85a, 7.5 miles (air) north-northeast of Lookout 1303 Comment
  JEPS114374  Rorippa Lowell Ahart, John Dittes 2008-8-25 15274 Modoc On the banks of the Pit River, about 1/8 mile east of County Road 91, about 3.8 miles (air) north-northeast of Lookout 1273 Comment
  JEPS114839  Glyceria borealis Lowell Ahart, John Dittes 2008-6-21 15006 Modoc In shallow water 6-8 inches deep, along a deep natural drainage, about 30 yards west of the levee, in Big Valley, about 3.6 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 6.4 miles (air) northeast of Bieber 1269 Comment
  JEPS117298  Anthemis cotula Lowell Ahart, John Dittes 2010-8-31 17097 Modoc Bottom of a small wash, on the east side of Elkins Lane, about 100 yards north of the bridge across Ash Creek, Ash Creek State Wildlife Area, about 4.3 miles (air) west of Adin, about 7.7 miles (air) northeast of Bieber, Big Valley 1267 Comment
  JEPS119965  Elytrigia repens Lowell Ahart, John Dittes 2012-7-12 18377 Modoc On the east side of Elkins Lane, about 100 yards north of the bridge across Ash Creek, Ash Creek State Wildlife Area, about 4.3 miles (air) west of Adin, about 7.7 miles (air) northeast of Bieber, Big Valley. Comment
  JEPS121212  Ranunculus cymbalaria Lowell Ahart, John Dittes 2013-7-24 18938 Modoc South bank of Ash Creek Canal, S of Ash Creek, Ash Creek State Wildlife Area, 0.79 air miles S of County Road 87, 1.73 air miles W of Adin, Big Valley. Comment
  JEPS123834  Crataegus douglasii Lowell Ahart, John Dittes 2015-7-17 20396 Modoc Ash Creek State Wildlife Area, about 3/4 mile south of County Road B7, about 2.7 miles (air) west of Adin, about 9.1 miles (air) northeast of Bieber. Adin USGS 7.5' Topographic Quadrangle. Comment
  JEPS126555  Penstemon roezlii Lowell Ahart, John Dittes 2016-6-6 20944 Modoc About 50 yards southwest of the intersection of County Road 87 and Access Road to Pilot Butte Parking Area, northeast base of Pilot Butte, 3.8 miles (air) east of Lookout, 7.5 miles (air) west of Adin, Ash Creek State Wildlife Area. Comment
  JEPS127153  Mimulus suksdorfii Lowell Ahart, John Dittes 2016-7-16 21250 Modoc South of Ash Creek, Ash Creek State Wildlife Area, 0.79 mile (air) south of County Road 87, 1.75 miles (air) west of Adin, Big Valley. Comment
  JEPS127160  Elatine rubella Lowell Ahart, John Dittes 2016-7-16 21246 Modoc South of of Ash Creek, Ash Creek State Wildlife Area, 0.79 mile (air) south of County Road 87, 1.75 miles (air) west of Adin, Big Valley. Comment
  JEPS127161  Amaranthus californicus Lowell Ahart, John Dittes 2016-7-16 21253 Modoc South of Ash Creek State Wildlife Area, 0.79 mile (air) south of County Road 87, 1.7 miles (air) southwest of Adin Big Valley. Comment
  JEPS127287  Epilobium ciliatum subsp. ciliatum Lowell Ahart, John Dittes 2016-7-14 21178 Modoc South of Ash Creek, Ash Creek State Wildlife Area, 0.79 mile (air) south of County Road 87, 1.73 miles (air) west of Adin Big Valley. Comment
  JEPS127293  Lepidium chalepense Lowell Ahart, John Dittes 2016-7-14 21166 Modoc South of Ash Creek, Ash Creek State Wildlife Area, 0.79 mile (air) south of County Road 87, 1.73 miles (air) west of Adin Big Valley. Comment
  RSA0039531  Carex athrostachya Lowell A. Ahart, John Dittes 2012-7-10 18305 Modoc Northeast of the old homestead, Ash Creek State Wildlife Area, about 3.2 miles (air) west of Adin, about 8.4 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  RSA0062306  Castilleja tenuis Lowell Ahart, John Dittes 2011-6-22 17559 Modoc On the east side of the road, about 100 yards north of the Pilot Butte Parking Lot, north edge of Ash Creek Floodplain, 1.1 miles (air) south of County Road 87, 7.7 miles (air) west of Adin, 10 miles (air) east of Lookout, Big Valley. 1264 Comment
  RSA0113965  Epilobium brachycarpum Lowell A. Ahart, John Dittes 2008-8-25 15277 -A Modoc On the west side of the Pit River, about 1/8 mile east of County Road 91, about 3.8 miles (air) north-northeast of Lookout. 1273 Comment
  RSA0118615  Deinandra lobbii Lowell Ahart, John Dittes 2013-7-25 18958 Modoc 30 yards north of the east-west fence, south edge of Ash Creek Floodplain, northeast of Patterson Homestead, east of Elkins Lane, 1.0 mile (air) south of County Road 87, 3.14 miles (air) west of Adin, Big Valley. 1267 Comment
  RSA0118762  Lupinus lepidus subsp. confertus Lowell A. Ahart, John Dittes 2013-7-25 18966 Modoc About 10 yards west of the north-south fence, south edge of Ash Creek Floodplain, northwest of Patterson Homestead, east of Elkins Lane, 1.0 mile (air) south of County Road 87, 3.14 miles (air) west of Adin, Big Valley. 1268 Comment
  RSA795596  Conium maculatum L. Ahart, John Dittes 2010-8-30 17066 Modoc On the sides of a small wash, about 10 yards east of the fence, south edge of the meadow, Ash Creek State Wildlife Area, 2300 feet north of Lassen County Line, about 3.6 air miles west of Adin., About 8.0 air miles northeast of Bieber, Big Valley. 1268 Comment
  SBBG125477  Lupinus argenteus var. heteranthus L. Ahart, J. Dittes 2012-7-10 18330 Modoc ca. 300 yards NE of old barn, on the sides of mowed rd; Ash Crk State Wildlife Area NE of Bieber, Big Valley 1266 Comment
  SBBG128893  Acmispon americanus var. americanus L. Ahart 2008-8-25 15302 Modoc W bank (flood plane) of the Pit River, ca. 1/8 mi E of County Rd 91, ca. 3.8 mi (air) NNE of Lookout 1273 Comment
  CDA34153  Solanum rostratum L. Ahart 2009-10-27 16494 Napa About 50 yards southeast of Eticuera Creek, and about 150 yards south of Eticuera Parking Area at the northeast end of the causeway, on the south side of Berryessa Knoxville Road. Approximately, 20 miles (air) northwest of Winters. Comment
  CHSC102260  Rumex dentatus Lowell Ahart 2009-10-27 16492 Napa Below the high water line of Lake Berryessa, about 50 yards southeast of Eticuera Creek, about 150 yards south of Eticuera Parking Area at the northeast end of the causeway, on the south side of Berryessa Knoxville Road, about 20 miles (air) northwest of Winters. 130 Comment
  CHSC102279  Echinochloa colona Lowell Ahart 2009-10-12 16463 Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 133 Comment
  CHSC102296  Portulaca oleracea Lowell Ahart 2009-10-12 16472 Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 437 Comment
  CHSC103003  Lactuca serriola Lowell Ahart 2009-10-12 16426 Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile soutwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 133 Comment
  CHSC103023  Brickellia californica Lowell Ahart 2009-10-12 16417 Napa Below the high water line of Lake Berryessa, along Capell Creek east of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile soutwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 133 Comment
  CHSC43811  Athysanus pusillus Lowell Ahart 1976-3-7 1019 Napa On a hillside about 1/4 mile south of the road, about 2 miles south-west of the Monticello Dam. 457 Comment
  JEPS115768  Helminthotheca echioides Lowell Ahart 2009-10-12 16427 Napa Below the high water line of Lake Berryessa, along Capell Creek south of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Wint 133 Comment
  RSA769183  Chamaesyce serpillifolia subsp. serpillifolia L. Ahart 2009-10-12 16437 A Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road,, about 19 air miles west of Winters. 133 Comment
  RSA769191  Conyza floribunda L. Ahart 2009-10-12 16419 Napa At the high water line of Lake Berryessa, along Capell Creek east of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 air miles west of Winters 133 Comment
  UCD169857  Dittrichia graveolens Lowell Ahart 2009-10-27 16503 Napa Along all the sides of the roads at the intersection of Pope Canyon Road and Berryessa Knoxville Road, near Lake Berryessa, about 20 miles, about 20 miles(air) west of Winters. 152 Comment
  CDA33213  Juncus chlorocephalus L. Ahart 2005-7-31 12244 Nevada Between the curve and below the bridge on old Highway 80, east of Donner Pass and Donner Summit. Comment
  CHSC108300  Phacelia racemosa Lowell Ahart 2011-7-23 17615 Nevada Along the south side of the dirt road, about 1/4 mile east of Highway 20, about 2 miles (air) east of the Omega Rest Area along Highway 20. 1647 Comment
  CHSC108301  Dudleya cymosa subsp. cymosa Lowell Ahart 2011-7-23 17584 -A Nevada West of the small meadow where there are two grave memorials, about 120 yards west of Bowman Lake Road, about 1/8 mile west of the bridge across the South Fork of the Yuba River, about 1 mile (air) north of Highway 20 at the intersection of Bowman Lake Road. 1379 Comment
  CHSC118532  Mimulus breweri Lowell Ahart; John Dittes, Josephine Guardino 2017-6-26 21420 Nevada About 20 yards southeast of the gate, south of Carpenter Valley Road, about 4 miles (air) west x southwest of Hobart Mills, about 5.2 miles (air) northwest of Truckee, southeast corner of Carpenter Valley. 1908 Comment
  CHSC44861  Erigeron foliosus var. hartwegii Lowell Ahart 1976-5-6 1107 Nevada Along the edge of Mooney Flat Road, about 1/2 mile west of Lake Wildwood. 365 Comment
  CHSC45859  Polygonum douglasii subsp. douglasii Lowell Ahart 1980-9-9 2595 Nevada On the bottom of a small wash, near the road that takes you to the Prosser Creek Dam, about 1/2 mile north-east of Highway 89, north-east of Truckee. 1828 Comment
  CHSC69416  Lactuca serriola Lowell Ahart 1997-8-13 7843 Nevada Along the sides of Penn Valley Road, just east of the intersection of Indian Springs Road and Penn Valley Road, just south of Highway 20, about 1.5 miles west of Penn Valley. 426 Comment
  CHSC69435  Tribulus terrestris Lowell Ahart 1997-8-13 7849 Nevada Penn Valley Road, just east of the intersection of Indian Springs Road and Penn Valley Road, just south of Highway 20, about 1.5 miles west of Penn Valley. 426 Comment
  CHSC75803  Phyllodoce breweri Lowell Ahart; Vernon H. Oswald 1999-7-26 8114 Nevada In a small meadow about 74 yards east of Grouse Ridge Road (Road 14) and east of the Lookout, about 6 miles northeast of Bowman Lake Road (Road 18), about 4 miles (air) south of Bowman Lake. 2316 Comment
  CHSC75811  Aconogonon davisiae Lowell Ahart 1999-7-26 8105 Nevada On an open mountain slope, on the north side of Grouse Ridge Road (Road 14) and northeast of the Lookout, about 6 miles northeast of Bowman Lake Road (Road 18), about 4 miles (air) south of Bowman Lake. 2316 Comment
  CHSC78528  Polygonum douglasii subsp. douglasii Lowell Ahart 2000-8-10 8649 Nevada Along a dirt road, dry overflow area south of Fall Creek, about 3/5 mile east of where Fall Creek crosses Forest Highway 18, or Bowman Lake Road, about 5 miles (air) or 8 miles by road north of Highway 20 and Bear Valley. 1706 Comment
  CHSC78557  Elymus glaucus subsp. glaucus Lowell Ahart 2000-8-10 8655 Nevada Mountain slope near dirt road and dry flat southeast of the cement dam across Fall Creek, about 1/4 mile east of where Fall Creek crosses Forest Highway 18, or Bowman Lake Road, about 5 miles (air) or 8 miles by road north of Highway 20 and Bear Valley. 1706 Comment
  CHSC80812  Plagiobothrys hispidulus Lowell Ahart 2001-7-21 8961 Nevada On the north side of the dirt road, about 100 yards northwest of the old sheep corral, northeast of Lake Van Norden, about 1 1/2 miles east of Soda Springs. 2063 Comment
  CHSC80949  Trifolium monanthum subsp. parvum Lowell Ahart 2001-7-27 9012 Nevada Strand of Prosser Creek Reservoir, south of Commemorative Emigrant Trail, about 1/4 mile east of Highway 89, about 4 miles (air) north of Truckee. 1746 Comment
  CHSC80997  Sparganium emersum subsp. emersum Lowell Ahart 2001-7-27 9039 Nevada Strand of Prosser Creek Reservoir, south of Commemorative Emigrant Trail, about 1/4 mile east of Highway 89, about 4 miles (air) north of Truckee. 1746 Comment
  CHSC81012  Descurainia incisa subsp. incisa Lowell Ahart 2001-8-8 9066 Nevada On the east side of Graniteville Road (Forest Road 18), about 2 1/2 miles (air) south of the spillway of Jackson Meadow Reservoir. 1889 Comment
  CHSC81014  Lepidium strictum Lowell Ahart 2001-8-14 9161 Nevada On the north side of Meadow Lake Road (Forest Road 18), west end of the rock and wire wall, on the west side of the first set of three large culverts where the road crosses Jackson Creek, closest to the east end of Bowman Lake and west of the major campgrounds and buildings. 1706 Comment
  CHSC81069  Juncus bufonius var. bufonius Lowell Ahart 2001-8-14 9138 Nevada On the north side of Meadow Lake Road (Forest Road 18), north of the first set of three large culverts where the road crosses Jackson Creek, closest to the east end of Bowman Lake and west of the major campgrounds and buildings. 1706 Comment
  CHSC82247  Achyrachaena mollis Lowell Ahart 2002-5-4 9584 Nevada In the road gutter, south side of Perimeter Road, just west of the private driveway, about 2.8 miles east of the intersection of Perimeter Road and White Oak Drive, about 5 miles (air) east of Camp Far West Dam, about 1 1/2 miles (air) southeast of Rock Mountain. 243 Comment
  CHSC84446  Epilobium oregonense Lowell Ahart 2003-7-25 10451 Nevada In a bog, about 50 yards east of a log landing, on the east side of a poor road, about 100 yards northeast of the locked gate, about 1/8 mile north of Grouse Ridge Road, about 1/2 mile northeast of Bowman Lake Road (Forest Road 18) about 5 miles (air) north of Bear Valley and Highway 20. 1769 Comment
  CHSC87378  Viola purpurea subsp. purpurea Lowell Ahart 2004-5-3 10874 Nevada West of the large flat area on the west side of Washington Road, about 1 1/4 miles north of the intersection of Highway 20 and Washington Road, about 4 1/4 miles (by road) south of Washington. 1243 Comment
  CHSC88138  Scutellaria californica Lowell Ahart 2004-7-17 11284 Nevada Near a small stream, very upper reaches of Steephollow Creek, about 100 yards west of Highway 20, about 150 yards south of the intersection of Highway 20 and Lowell Hill Road, about 2 miles northwest of Bear Valley, about 3 miles southeast of the Omega Rest Area, about 16 miles (air) northeast of Nevada City. 1463 Comment
  CHSC88141  Hypochaeris radicata Lowell Ahart 2004-7-17 11251 Nevada Near a small stream, very upper reaches of Steephollow Creek, about 100 yards west of Highway 20, about 150 yards south of the intersection of Highway 20 and Lowell Hill Road, about 2 miles northwest of Bear Valley, about 3 miles southeast of the Omega Rest Area, about 16 miles (air) northeast of Nevada City. 1463 Comment
  CHSC88218  Holodiscus microphyllus var. microphyllus Lowell Ahart 2004-8-9 11366 Nevada Near the base of cliffs, on the east side of the very upper reaches of Jackson Creek, on the northeast side of English Mountain, about 3/4 mile (air) south of Catfish Lake, about 2 3/4 miles east of the east end of Bowman Lake. 2162 Comment
  CHSC88430  Carex diandra Lowell Ahart 2004-8-9 11355 Nevada On the south edge of a very small snow lake, east of the two snow lakes, drainage flows east into Secret Lake, east of a small dry meadow, on the very very upper reaches of Jackson Creek, on the northeast side of English Mountain, about 3/4 mile (air) south of Catfish Lake, about 2 3/4 miles east of the east end of Bowman Lake. 2263 Comment
  CHSC91999  Acmispon nevadensis var. nevadensis Lowell Ahart 2005-7-31 12249 Nevada Along the old gravel road over Donner Pass, between the curve and below the bridge on old Highway 80, east of Donner Pass and Donner Summit. 2062 Comment
  CHSC92019  Horkelia tridentata subsp. tridentata Lowell Ahart 2005-7-23 12189 Nevada South of the power lines, about 100 yards west of the paved road, southwest of Lake Spaulding, about 1/2 mile north of Highway 20. 1572 Comment
  CHSC92025  Helenium bigelovii Lowell Ahart 2005-7-23 12174 Nevada Along a small wash, meadow, under the power lines, about 100 yards west of the paved road, southwest of Lake Spaulding, about 1/2 mile north of Highway 20. 1572 Comment
  CHSC92064  Juncus nevadensis Lowell Ahart 2005-7-31 12243 Nevada In a small meadow and near a small wash, between the curve and below the bridge on old Highway 80, east of Donner Pass and Donner Summit. 2062 Comment
  CHSC92078  Penstemon azureus var. azureus Lowell Ahart 2005-7-23 12194 Nevada West of the meadow under the power lines, about 150 yards west of the paved road, southwest of Lake Spaulding, about 1/2 mile north of Highway 20. 1572 Comment
  CHSC92107  Castilleja miniata subsp. miniata Lowell Ahart 2005-7-31 12234 Nevada In a small meadow and near a small wash, between the curve and below the bridge on old Highway 80, east of Donner Pass and Donner Summit. 2062 Comment
  CHSC99915  Allophyllum integrifolium Lowell Ahart 2008-7-18 15114 Nevada Along the P. G. and E. water ditch at the 3 1/4 mile mark, about one mile southwest of Highway 20 (by ditch), about 1/2 mile south of Bear Valley. 1744 Comment
  CHSC99929  Acmispon nevadensis var. nevadensis Lowell Ahart 2008-7-18 15139 Nevada Along the south side of Highway 20, at the intersection of Highway 20 and Bowman Lake Road, southeast end of Bear Valley. 1439 Comment
  HSC103920  Frangula rubra subsp. rubra L. Ahart 2012-7-28 18395 Nevada Bear Valley, on the east side of Bowman Lake Road, ~100 yds. south of the Bear River; east side of Pioneer Trail, ~80 yds. SE of the P.G.&E. Pavilion 1434 Comment
  HSC96819  Drosera rotundifolia L. Ahart 2003-7-25 10449 Nevada 50 yds. E of log landing in a logged over forest, 1/8 mi. N of Grouse Ridge Rd., 0.5 mi. NE of Bowman Lake Rd., 5 air mi. N of Bear Valley and Hwy. 20 1770 Comment
  HSC96984  Potentilla flabellifolia L. Ahart 2004-8-9 11363 Nevada Upper reaches of Jackson Creek, on the NE side of English Mountain, about 3/4 mile (air) south of Catfish Lake, about 2 3/4 miles east of the east end of Bowman Lake 2291 Comment
  HSC97034  Ranunculus occidentalis var. occidentalis L. Ahart 2004-5-3 10871 Nevada W side of Washington Rd. 1.25 mi. N of intersection of Hwy. 20 and Washington Rd. 1241 Comment
  HSC97079  Agrostis thurberiana L. Ahart 2004-7-17 11270 Nevada Upper reaches of Steephollow Creek, 150 yards S of the intersection of Hwy. 20 and Lowell Hill Rd. 1463 Comment
  JEPS102347  Trifolium variegatum Lowell Ahart 2001-8-14 9156 Nevada Bowman Lake, E end; N side of Meadow Lake Road (Forest Rd. 18), W side of the first set of three large culverts where the road crosses Jackson Creek 1706 Comment
  JEPS102700  Agrostis scabra Lowell Ahart 2001-7-27 9033 Nevada Strand of Prosser Creek Reservoir, south of Commemorative Emigrant Trail, about 1/4 mile east of Highway 89, about 4 miles (air) north of Truckee. 1746 Comment
  JEPS102701  Muhlenbergia filiformis Lowell Ahart 2001-7-27 9037 Nevada Strand of Prosser Creek Reservoir, south of Commemorative Emigrant Trail, about 1/4 mile east of Highway 89, about 4 miles (air) north of Truckee. 1746 Comment
  JEPS103365  Myosotis discolor Lowell Ahart 2002-5-4 9593 Nevada South side of Perimeter Road, just E of Saddle Drive, ca 1 mile E of the intersection of Perimeter Road and White Oak Drive, ca 3 1/2 miles (air) E of Camp Far West Dam. 182 Comment
  JEPS103461  Lilaea scilloides Lowell Ahart 2002-6-3 9684 Nevada In a small drainage, in a ''meadow like'' area, ca 140 yards W of where a few people park along Long Ravine Road, ca one mile SE of the intersection of Long Ravine Road and Camp Far West Road, NE of Camp Far West Reservoir. 132 Comment
  JEPS104603  Agrostis thurberiana Lowell Ahart 2003-7-25 10446 Nevada Log landing in a logged over forest, on the w side of a poor road, ca 100 yd n of the locked gate, ca 1/8 mi n of Grouse Ridge Rd, ca 1/2 mi ne of Bowman Lake Rd (Forest Rd 18), ca 5 mi (air) n of Bear Valley and Highway 20. 1751 Comment
  JEPS104623  Juncus nevadensis Lowell Ahart 2003-7-25 10443 Nevada Log landing, on the w side of a poor road, ca 100 yd n of the locked gate, ca 1/8 mi n of Grouse Ridge Rd, ca 1/2 mi ne of Bowman Lake Rd (Forest Rd 18), ca 5 mi (air) n of Bear Valley and Highway 20. 1751 Comment
  JEPS105832  Rosa bridgesii Lowell Ahart 2004-5-3 10886 Nevada West of the large flat area on the west side of Washington Road, about 1 1/4 miles north of the intersection of Highway 20 and Washington Road, about 4 1/4 miles (by road) south of Washington 1195 Comment
  JEPS105895  Gaultheria ovatifolia Lowell Ahart 2004-7-17 11279 Nevada Near small stream, upper reaches of Steephollow Creek, ca. 100 yd W of Hwy 20, ca. 150 yd S of intersection of Hwy 20 and Lowell Hill Rd, ca. 2 mi NW of Bear Valley, ca. 3 mi SE of the Omega Rest Area, ca. 16 mi (air) NE of Nevada City 1463 Comment
  JEPS105912  Erigeron inornatus var. inornatus Lowell Ahart 2004-7-17 11282 Nevada Near small stream, upper reaches of Steephollow Creek, ca. 20 yd E of Hwy 20, ca. 150 yd SE of intersection of Hwy 20 and Lowell Hill Rd, ca. 2 mi NW of Bear Valley, ca. 3 mi SE of the Omega Rest Area, ca. 16 mi (air) NE of Nevada City 1463 Comment
  JEPS106334  Muhlenbergia filiformis Lowell Ahart 2004-8-9 11348 Nevada Bottom of a small snow lake, on the east side of the very upper reaches of Jackson Creek, on the northeast side of English Mountain, about 3/4 mile (air) south of Catfish Lake, about 2 3/4 miles east of the east end of Bowman Lake 2263 Comment
  JEPS106354  Deschampsia cespitosa subsp. cespitosa Lowell Ahart 2004-8-9 11353 Nevada On N edge of snow lake, drainage flows E into Secret Lake, E of small dry meadow, on the upper reaches of Jackson Creek, on the NE side of English Mountain, ca. 3/4 mi (air) S of Catfish Lake, ca. 2 3/4 mi E of the E end of Bowman Lake 2263 Comment
  JEPS106377  Carex praegracilis Lowell Ahart 2004-7-17 11265 Nevada On the east side of Highway 20, about 100 yards southeast of the intersection of Highway 20 and Lowell Hill Road, about 2 miles northwest of Bear Valley, about 3 miles southeast of the Omega Rest Area, about 16 miles (air) northeast of Nevada City 1463 Comment
  JEPS107431  Cerastium glomeratum Lowell Ahart 2005-5-4 11592 Nevada Spenceville Wildlife Management Area. On sides of the road gutter, on the N side of Spenceville Rd (no longer maintained), ca. 150 yd E of the wood bridge across Dry Creek, ca. 3 mi E of the intersection of Camp Far West Rd and Spenceville Rd 107 Comment
  JEPS107499  Perideridia lemmonii Lowell Ahart 2005-7-23 12200 Nevada Meadow, under the power lines, about 100 yards west of the paved road, southwest of Lake Spaulding, about 1/2 mile north of Highway 20 1572 Comment
  JEPS107507  Danthonia californica var. americana Lowell Ahart 2005-7-23 12168 Nevada Along a small wash, meadow, under the power lines, about 100 yards west of the paved road, southwest of Lake Spaulding, about 1/2 mile north of Highway 20 1572 Comment
  JEPS107510  Epilobium ciliatum subsp. ciliatum Lowell Ahart 2005-7-23 12183 Nevada Meadow, under the power lines, about 100 yards west of the paved road, southwest of Lake Spaulding, about 1/2 mile north of Highway 20 1572 Comment
  JEPS107527  Gayophytum heterozygum Lowell Ahart 2005-7-23 12199 Nevada Meadow, under the power lines, about 100 yards west of the paved road, southwest of Lake Spaulding, about 1/2 mile north of Highway 20 1572 Comment
  JEPS107538  Gayophytum heterozygum Lowell Ahart 2005-7-31 12223 Nevada In a small meadow and near a small wash, between the curve and below the bridge on old Highway 80, east of Donner Pass and Donner Summit 2062 Comment
  JEPS107979  Astragalus canadensis var. brevidens Lowell Ahart 2005-7-31 12218 Nevada Track of the old gravel road over Donner Summit, about 200 yards southwest of the GPS location, southeast of the bridge on old Highway 80, southeast of Donner Pass and Donner Summit 2062 Comment
  JEPS114404  Mimulus guttatus Lowell Ahart 2008-7-18 15134 Nevada About 50 yards south of Highway 20, south of the intersection of Highway 20 and Bowman Lake Road, southeast end of Bear Valley 1439 Comment
  JEPS114505  Chenopodium botrys Lowell Ahart 2008-7-18 15125 Nevada Along the P. G. & E. water ditch at the 3 1/4 mile mark, about one mile southwest of Highway 20 (by ditch), about 1/2 mile south of Bear Valley 1744 Comment
  JEPS118245  Cryptogramma acrostichoides Lowell Ahart 2011-7-23 17583 Nevada Southwest of the small meadow where there are two grave memorials, about 80 yards west of Bowman Lake Road, about 1/8 mile west of the bridge across the South Fork of the Yuba River, about 1 mile (air) north of Highway 20 at the intersection of Bowman Lake Road 1379 Comment
  JEPS118376  Polygonum douglasii subsp. douglasii Lowell Ahart 2011-7-23 17596 Nevada Southwest of the small meadow where there are two grave memorials, about 100 yards west of Bowman Lake Road, about 1/8 mile west of the bridge across the South Fork of the Yuba River, about 1 mile (air) north of Highway 20 at the intersection of Bowman Lake Road 1379 Comment
  JEPS118384  Heterocodon rariflorum Lowell Ahart 2011-7-23 17589 Nevada Southwest of the small meadow where there are two grave memorials, about 80 yards southwest of Bowman Lake Road, about 1/8 mile west of the bridge across the South Fork of the Yuba River, about 1 mile (air) north of Highway 20 at the intersection of Bowman Lake Road 1379 Comment
  JEPS128664  Microsteris gracilis Lowell Ahart, John Dittes, Josephine Guardino 2017-6-27 21461 Nevada About 50 yards north of the north edge of Carpenter Meadow, about 50 yards south of the poor dirt road, about 4.9 miles (air) west of Hobart Mills, about 6.1 miles (air) northwest of Truckee, Basin of Prosser Creek, Carpenter Valley. Comment
  JEPS128683  Penstemon rydbergii var. oreocharis Lowell Ahart, John Dittes, Josephine Guardino 2017-6-28 21512 Nevada About 20 yards east of the west edge of Carpenter Meadow, about 120 yards east of the end of the poor dirt road, about 4.9 miles (air) west of Hobart Mills, about 6.1 miles (air) northwest of Truckee, Basin of Prosser Creek, Carpenter Valley. Comment
  JEPS128697  Epilobium densiflorum Lowell Ahart, John Dittes 2017-7-18 21551 Nevada 1014 feet southeast of intersection of Boca Road and Prosser Dam Road, meadow northwest of Prosser Creek Reservoir Dam, about 4.6 miles (air) northwest of Truckee. Comment
  JEPS128703  Thalictrum fendleri var. fendleri Lowell Ahart, John Dittes, Josephine Guardino 2017-6-29 21525 Nevada 20 yards south of Carpenter Valley Road, west of the buildings about 4.5 miles (air) west of Hobart Mills, about 6 miles (air) northwest of Truckee, Carpenter Valley, meadow Basin of Prosser Creek. Comment
  JEPS128732  Calyptridium monospermum Lowell Ahart, John Dittes, Josephine Guardino 2017-6-26 21425 Nevada About 40 yards north of Carpenter Valley Road, about 300 yards west of the gate, about 4 miles (air) west x southwest of Hobart Mills, about 5.2 miles (air) northwest of Truckee, southeast corner of Carpenter Valley. Comment
  JEPS128743  Poa cusickii subsp. epilis Lowell Ahart, John Dittes, Josephine Guardino 2017-6-27 21452 Nevada About 200 yards north of Carpenter Meadow, about 4.9 miles (air) west of Hobart Mills, about 6.1 miles (air) northwest of Truckee, Basin of Prosser Creek, Carpenter Valley. Comment
  JEPS128752  Leptosiphon ciliatus Lowell Ahart, John Dittes, Josephine Guardino 2017-6-27 21465 Nevada About 50 yards north of the north edge of Carpenter Meadow, about 50 yards south of the poor dirt road, about 4.9 miles (air) west of Hobart Mills, about 6.1 miles (air) northwest of Truckee, Basin of Prosser Creek, Carpenter Valley. Comment
  JEPS94442  Chamaesyce maculata Lowell Ahart 1997-8-13 7853 Nevada about 1.5 mi w of Penn Valley (along the n side of Penn Valley Road, just w of the intersection of Pleasant Valley Road and Penn Valley Road, just s of Highway 20); Penn Valley Road 426 Comment
  JEPS95887  Eriogonum marifolium Lowell Ahart 1999-7-26 8106 Nevada on the north side of Grouse Ridge Road (Road 14) and northeast of the Lookout; about 6 miles northeast of Bowman Lake Road (Road 18); about 4 miles (air) south of Bowman Lake 2316 Comment
  JEPS98397  Pyrola dentata Lowell Ahart 2000-7-28 8609 Nevada South of a small spring, on the east side of Fall Creek, about 200 yards east of where Fall Creek crosses Forest Highway 18, or Bowman Lake Road, about 5 miles (air) or 8 miles by road north of Highway 20 and Bear Valley 1706 Comment
  JEPS98959  Eriogonum cernuum var. cernuum Lowell Ahart 2001-8-14 9154 Nevada On north side of Meadow Lake Road (Forest Road 18), west end of rock and wire wall, on west side of first set of three large culverts where road crosses Jackson Creek, closest to east end of Bowman Lake and west of major campgrounds and buildings. 1706 Comment
  RSA700112  Melilotus albus L. Ahart 2004-7-17 11257 Nevada Very upper reaches of Steephollow Creek, about 20 yards east of Highway 20, about 150 yards southeast of the intersection of Highway 20 and Lowell Hill Road, about 2 miles northwest of Bear Valley., About 3 miles southeast of the Omega Rest area, about 16 miles (air) northeast of Nevada City. 1463 Comment
  RSA700114  Hypericum perforatum L. Ahart 2004-7-17 11 .274 Nevada Very upper reaches of Steephollow Creek, about 20 yards east of Highway 20, about 150 yards southeast of the intersection of Highway 20 and Lowell Hill Road, about 2 miles northwest of Bear Valley., About 3 miles southeast of the Omega Rest area, about 16 miles (air) northeast of Nevada City. 1463 Comment
  RSA715838  Mimulus torreyi L. Ahart 2005-7-23 12193 Nevada Under power lines, about 100 yards west of the paved road, SW of Lake Spaulding, about 1/2 mile N of Highway 20. 1573 Comment
  RSA715841  Rosa woodsii var. ultramontana L. Ahart 2005-7-23 12190 Nevada Under power lines, about 100 yards west of the paved road, SW of Lake Spaulding, about 1/2 mile N of Highway 20. 1573 Comment
  RSA716139  Juncus howellii L. Ahart 2005-7-31 12245 Nevada Between the curve and below the bridge on old Highway 80, east of Donner Pass and Donner Summit. 2063 Comment
  RSA716405  Ageratina occidentalis L. Ahart 2005-8-30 12367 Nevada South of the old Highway 80, southeast of Donner Pass and Donner Summit 2055 Comment
  RSA716699  Calamagrostis canadensis L. Ahart, John Dittes 2005-9-20 12429 Nevada on the west shore of Mud Lake, about 1/2 mile northeast of Eisenheimer Peak, about 3/4 mile south of Wilcox Valley. 2030 Comment
  RSA795267  Muhlenbergia filiformis L. Ahart 2011-7-23 17611 Nevada About 40 yards west of Bowman Lake Road, about 1/8 miles west of the bridge across the South Fork of the Yuba River, about 1 air mile north of Highway 20 at the intersection of Bowman Lake Road. 1380 Comment
  JEPS100492  Carex multicaulis Lowell Ahart 2000-7-28 8616 Nevada Mountain side southwest of a very small dry stream, about 300 yards southeast of Fall Creek, about 1/8 mile southeast of where Fall Creek crosses Forest Highway 18, or Bowman Lake Road, about 5 miles (air) or 8 miles by road north of Highway 20 and Bear V 1737 Comment
  SEINET10960887  Carex lenticularis var. impressa Lowell Ahart 2001-8-8 Ahart 9063 Nevada T19N, R13E, east of center of Section 31. Near a large rock, on the south bank of Catfish Lake, about 3 miles (air) south of the spillway of Jackson Meadow Reservoir. 1890 Comment
  SEINET13709306  Hordeum jubatum Lowell William Ahart, Lowell William Ahart 2001-1 9035 Nevada Strand of Prosser Creek Reservoir, S of Commemorative Emigrant Trail, 1/4 Mi. E of Hwy 89, 4 Mi. N of Truckee (T18N, R16E, sec 26, NE 1/4) 5730 Ft. 1747 Comment
  SEINET13711332  Deschampsia elongata Lowell William Ahart, Lowell William Ahart 2001-1 8990 Nevada NE of Lake Van Norden, about 1.5 Mi. E of Soda Springs (T17N, R14E, NW 1/4 sec 25) 6770 Ft. 2063 Comment
  CHSC11336  Triteleia ixioides subsp. scabra Lowell Ahart 1969-7-30 Placer Handy Camp, French Meadows. 1524 Comment
  CHSC81794  Lythrum portula Lowell Ahart 2001-10-10 9344 Placer French Meadows Reservoir, near the boat or trail access area on the northwest side of the reservoir, about 1 mile southwest of the bridge across the Middle Fork of the American River, about 2 miles southwest of Ahart Camp, about 22 miles (air) northeast of Forest Hill. 1594 Comment
  CHSC81809  Persicaria lapathifolia Lowell Ahart 2001-10-10 9364 Placer French Meadows Reservoir, near the boat or trail access area on the northwest side of the reservoir, about 1 mile southwest of the bridge across the Middle Fork of the American River, about 2 miles southwest of Ahart Camp, about 22 miles (air) northeast of Forest Hill. 1594 Comment
  CHSC82640  Lycopus uniflorus Lowell Ahart 2002-7-22 9888 Placer On a floating log in the lake, on the east side of the paved road to Lake Valley Reservoir, about 1/4 mile east of Yuba Gap and Highway 80. 1773 Comment
  CHSC96506  Urtica urens Lowell Ahart; Brian Williams 2007-4-13 13656 Placer On damp granite soil, under a large blue oak tree, about 1/8 mile northeast of GPS location, open pasture fields, about 1/2 mile south of the Manzanita Cemetery, about 1/2 mile west of Gladding Road, about 2 3/4 miles north of Lincoln. 43 Comment
  CHSC97702  Mollugo verticillata Lowell Ahart 2007-11-13 14598 Placer On the strand of Camp Far West Reservoir, about 300 yards west of Bear River, about 1/8 mile east of McCourtney Road, about 5 1/2 miles (air) northeast of Sheridan. 73 Comment
  CHSC97704  Digitaria sanguinalis Lowell Ahart 2007-11-13 14600 Placer On the strand of Camp Far West Reservoir, about 300 yards west of Bear River, about 1/8 mile east of McCourtney Road, about 5 1/2 miles (air) northeast of Sheridan. 73 Comment
  JEPS103349  Rorippa curvisiliqua var. orientalis Lowell Ahart 2002-7-22 9882 Placer 50 yards NE of the small natural lake, on the E side of the paved road to Lake Valley Reservoir, ca 1/4 mile E of Yuba Gap and Highway 80. 1780 Comment
  JEPS113113  Triphysaria eriantha subsp. eriantha Lowell Ahart, Brian Williams 2007-4-13 13654 Placer On damp granite soil, open pasture fields, about 1/2 mile south of the Manzanita Cemetery, about 1/2 mile west of Gladding Road, about 2 3/4 miles north of Lincoln 43 Comment
  JEPS113244  Vulpia bromoides Lowell Ahart, Brian Williams 2007-4-13 13663 Placer Open pasture fields, about 1/2 mile south of the Manzanita Cemetery, about 1/2 mile west of Gladding Road, about 2 3/4 miles north of Lincoln 43 Comment
  CAS-BOT-BC100098  Balsamorhiza sagittata Lowell Ahart 1989-7-2 6339 Plumas on the north side and near the summit of Pilot Peak, about 10 miles north-east of La Porte 2255 Comment
  CAS-BOT-BC127098  Agrostis exarata Lowell Ahart 1980-10-6 2679 Plumas Sierra Nevada. About 1 mile south of La Porte. 487 Comment
  CAS-BOT-BC174366  Eremogone kingii var. glabrescens Lowell Ahart 1983-8-17 4321 Plumas Near Onion Valley, near the Quincy La Porte Road, west of Pilot Pk., north-east of La Porte 2000 Comment
  CAS-BOT-BC230974  Plagiobothrys hispidulus Lowell Ahart 1977-7-9 s.n. Plumas 6 miles N of La Porte 1800 Comment
  CAS-BOT-BC246157  Keckiella lemmonii Lowell Ahart 1986-7-25 5375 Plumas Along Cleghorn Bar Road, about 1 1/2 miles west of Finger Board, about 4 miles north-west of Pilot Peak 1828 Comment
  CAS-BOT-BC254764  Poa bolanderi Lowell Ahart 1977-7-26 s.n. Plumas 0.5 mile below the Bunker Hill Mine, about 10 miles NE of La Porte 2000 Comment
  CAS-BOT-BC278636  Festuca subulata Lowell Ahart 1980-8-12 2533 Plumas Along Onion Creek, near Diamond Spring Hill, ca. 1.5 mi E of La Porte Road, ca. 6 mi. SW of La Porte 1400 Comment
  CAS-BOT-BC420050  Polygonum polygaloides subsp. kelloggii Lowell Ahart 1981-7-21 2975 Plumas About 1.5 miles west on Cleghorn Bar Road, about 2 miles west of Pilot Peak. 1900 Comment
  CAS-BOT-BC433069  Mitella trifida Lowell Ahart 1987-5-19 5655 Plumas Along Hopkins Creek, about 1/2 mile south of Turkeytown, about 1 mile west of Blue Nose Mountain, about 14 miles north-east of La Porte 1889 Comment
  CAS-BOT-BC54325  Erysimum capitatum Lowell Ahart 1986-7-8 5349 Plumas About 1 mile northwest of Pilot Peak, about 14 miles northeast of La Porte. 1981 Comment
  CDA32029  Conyza canadensis L. Ahart, J. Dittes 2009-9-7 16376 Plumas Below the high water line of Lake Almanor, about 2000 feet northwest of Lake Almanor Dam. Comment
  CDA38116  Epilobium ciliatum subsp. glandulosum L. Ahart 2006-10-8 13396 Plumas On the west side of Chips Creek, just south of the bridge on Highway 70, about 1 1/4 miles southwest of Belden. Comment
  CDA39168  Juncus articulatus L. Ahart 2006-10-23 13488 Plumas On the west side of Slate Creek (there is a large gravel flat caused by the dam), about 30 yards southof where the road ends, about 20 yards north of the dam across Slate Creek, about 1/8 mile northeast of Scales Road, about 5 1/2 miles (air) northeast of Strawberry Valley. Comment
  CDA43015  Juncus nevadensis L. Ahart 2008-8-13 15161 Plumas Northeast edge of La Porte Road, north of East Branch Creek, about 1 3/4 miles (air) south of Little Grass Valley Reservoir, about one mile northeast of La Porte. Comment
  CDA5731  Cerastium arvense L. Ahart, R. K. Rabeler, L. P. Janeway, L. Hanson 2005-4-2 11751 Plumas On the south side of Highway 70, about 200 yards southwest of Grizzly Creek, about 1 1/2 miles northeast of the Arch Rock Shady Rest Area. Comment
  CDA8266  Madia glomerata L. Ahart, J. Dittes 2005-9-19 12401 Plumas Along the sides of a good dirt road, about 1 1/4 miles east of Kettle Rock, about 1 1/4 miles southeast of Taylor Lake. Comment
  CHSC100036  Amelanchier alnifolia var. semiintegrifolia Lowell Ahart 2008-8-14 15203 Plumas Steep north side of a good logging road (Forest Road 22N68), north of the South Fork of the Feather River, about 1/2 mile southwest of the Feather Fork Mine, about 1 mile northeast of Little Grass Valley Reservoir. 1600 Comment
  CHSC100045  Stellaria crispa Lowell Ahart 2008-8-13 15169 Plumas East of La Porte Road, west bank of East Branch Creek, about 1 3/4 miles (air) south of Little Grass Valley Reservoir, about one mile northeast of La Porte. 1613 Comment
  CHSC100319  Sidalcea glaucescens Lowell Ahart 2008-8-13 15172 Plumas Large pile of dirt on the east side of La Porte Road, west of East Branch Creek, about 1 3/4 miles (air) south of Little Grass Valley Reservoir, about one mile northeast of La Porte. 1613 Comment
  CHSC101777  Antennaria argentea Lowell Ahart; John Dittes, Josephine Guardino 2009-6-14 15870 Plumas South and below Forest Road 27N01Y, south of the high cut bank along the road, about 1.3 miles (air) west of Lake Almanor Dam. 1462 Comment
  CHSC101780  Carex brainerdii Lowell Ahart; John Dittes, Josephine Guardino 2009-6-14 15861 Plumas North of cut bank of Forest Road 27N01Y, about 1.3 miles (air) west of Lake Almanor Dam. 1462 Comment
  CHSC101923  Poteridium annuum Lowell Ahart; John Dittes 2009-7-13 16055 Plumas West side of Forest Service Road 27lN98, headwater of Clear Creek, about 2.0 miles (air) north of Butt Valley Reservoir Dam, about 3 miles (air) southwest of Lake Almanor Reservoir Dam. 1476 Comment
  CHSC101932  Melica aristata Lowell Ahart; John Dittes 2009-7-14 16064 Plumas On dry soil, on the north side of Forest Service Road 27N92, about 1.9 miles (air) southeast of Seneca, about 6 miles (air) south of Lake Almanor Reservoir Dam. 1677 Comment
  CHSC101943  Piperia unalascensis Lowell Ahart; John Dittes 2009-7-13 16050 Plumas On dry soil, on the west side of Forest Service Road 27N98, headwater of Clear Creek, about 2.0 miles (air) north of Butt Valley Reservoir Dam, about 3 miles (air) southwest of Lake Almanor Reservoir Dam. 1476 Comment
  CHSC102044  Juncus tenuis Lowell Ahart; John Dittes, Josephine Guardino 2009-7-29 16209 Plumas On dry rocky soil, drainage from a snow lake, on the south side of Forest Road 26N67F3, 1.2 miles (air) northeast of Rush Creek Hill, 2.6 miles (air) east-southeast of Caribou Powerhouse. 1677 Comment
  CHSC102078  Chimaphila umbellata Lowell Ahart; John Dittes 2009-7-14 16066 Plumas On dry soil, on the both sides of Forest Service Road 27N92, about 1.9 miles (air) southeast of Seneca, about 6 miles (air) south of Lake Almanor Reservoir Dam. 1677 Comment
  CHSC102105  Monardella sheltonii Lowell Ahart; John Dittes, Josephine Guardino 2009-7-29 16218 Plumas On dry rocky soil, north side of Forest Service Road 26N22, 4,650 feet northwest of Rattlesnake Hill, 3.0 miles (air) south-southeast of Lake Almanor Dam. 1591 Comment
  CHSC102125  Rubus parviflorus Lowell Ahart; John Dittes 2009-7-27 16169 Plumas On damp to dry soil, west of the small pond, headwaters of Grizzly Gulch, 2.1 miles (air) northeast of Butt Valley Reservoir Dam. 1479 Comment
  CHSC102136  Gnaphalium palustre Lowell Ahart; John Dittes, Josephine Guardino 2009-7-29 16221 Plumas On damp bare soil, below the high water line of Lake Almanor, 1,849 feet northwest of Lake Almanor Dam. 1591 Comment
  CHSC102145  Cryptantha torreyana Lowell Ahart; John Dittes, Josephine Guardino 2009-7-29 16223 Plumas On amp bare soil, below the high water line of Lake Almanor, 1,849 feet northwest of Lake Almanor Dam. 1591 Comment
  CHSC102390  Urtica dioica subsp. holosericea Lowell Ahart; John Dittes, Josephine Guardino 2009-7-21 16122 Plumas Edge of a meadow or seep, about 20 yards north of Forest Service Road 27N26, about 1000 feet northwest of Powerhouse at the north end of Butt Valley Reservoir, about 3 miles (air) southwest of Lake Almanor. 1302 Comment
  CHSC102643  Carex nebrascensis Lowell Ahart; John Dittes, Josephine Guardino 2009-7-22 16139 Plumas On the west side of Forest Service Road 27NO2K, east side of Long Valley, about 3.5 miles (air) west-southwest of Greenville, about 5.2 miles (air) southeast of Lake Almanor Dam. 1606 Comment
  CHSC105649  Dittrichia graveolens Lowell Ahart; John Dittes 2010-10-5 17302 Plumas On the north side of Highway 70, Serpentine Canyon, 2.7 miles (air) east-northeast of Rich Bar, 3.9 miles (air) west of Twain. 813 Comment
  CHSC105672  Schoenoplectus subterminalis Lowell Ahart 2010-10-21 17312 Plumas East side of Fowler Lake, about 3/8 mile south of the dirt road, about 2 miles (air) north of where Black Rock Creek flows into Little Grass Valley Reservoir, about 6 miles (air) north-northwest of La Porte. 1662 Comment
  CHSC10592  Calochortus leichtlinii Lowell Ahart 1968-6-29 Plumas Near La Porte. 914 Comment
  CHSC108094  Chrysothamnus nauseosus subsp. albicaulis Lowell Ahart 2011-9-17 17676 Plumas On the west side of Lumpkin Ridge Road, about 2 miles (air) west of Little Grass Valley Reservoir Dam. 1687 Comment
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Oct 18 2017
  CHSC10824  Diplacus mephiticus Lowell Ahart 1968-6-29 Plumas Six miles N. E. of La Porte. 1371 Comment
  CHSC108456  Castilleja miniata subsp. miniata Lowell Ahart 2011-9-20 17684 Plumas Open area along a very small stream, on the north side of the poor dirt road on the north side of Pilot Peak, about 9 miles (air) northeast of La Porte. 2072 Comment
  CHSC108470  Trisetum canescens Lowell Ahart 2011-9-17 17663 Plumas On the south side of an unnamed stream that flows east into Little Grass Valley Reservoir and opposite the Black Rock, about 30 yards west of the paved road, about 1/8 mile west of Little Grass Valley Reservoir. 1595 Comment
  CHSC11096  Heuchera micrantha var. pacifica Lowell Ahart 1968-6-29 Plumas Near La Porte. 1371 Comment
  CHSC111722  Frangula purshiana subsp. annonifolia Lowell Ahart 2012-7-1 18255 Plumas About 200 yards northwest of Caribou Road, about 4 miles (air) northeast of Belden. 833 Comment
  CHSC112616  Elatine rubella Lowell Ahart 2013-9-11 19023 W Plumas Strand of Antelope Lake, where Boulder Creek enters the lake, Antelope Lake, about 15 miles (air) northeast of Taylorsville. 1549 Comment
  CHSC113589  Persicaria maculosa Lowell Ahart 2014-8-24 19737 Plumas South side of the South Fork of the Feather River, Little Grass Valley Reservoir, about 200 yards southwest of the parking lot to the Pacific Crest Trail, about 1/4 mile southwest of the bridge across the South Fork of the Feather River, about 4 miles (air) north of La Porte. 1533 Comment
  CHSC113594  Juncus covillei Lowell Ahart 2014-8-26 19770 Plumas Center of the South Fork of the Feather River, Little Grass Valley Reservoir, about 200 yards southwest of the parking lot to the Pacific Crest Trail, about 1/4 mile southwest of the bridge across the South Fork of the Feather River, about 4 miles (air) north of La Porte. 1533 Comment
  CHSC113623  Senecio sylvaticus Lowell Ahart 2014-8-31 19813 Plumas On the west side of Black Rock Creek, about 250 yards south of the foot bridge across Black Rock Creek, about 250 yards south of the Black Rock, Little Grass Valley Reservoir, about 4 1/2 miles (air) northwest of La Porte. 1536 Comment
  CHSC113632  Heterocodon rariflorum Lowell Ahart 2014-8-31 19827 Plumas Gravel bars along Black Rock Creek, about 200 yards southwest of the foot bridge across Black Rock Creek, about 200 yards southwest of the Black Rock, Little Grass Valley Reservoir, about 4 1/2 miles (air) northwest of La Porte. 1536 Comment
  CHSC113857  Mollugo verticillata Lowell Ahart 2014-9-9 19850 Plumas Below the high water line,on the sides of Sly Creek, Sly Creek Reservoir, about 7 miles (air) southwest of La Porte. 1069 Comment
  CHSC113874  Epilobium brachycarpum Lowell Ahart 2014-8-26 19784 Plumas On the north side of the South Fork of the Feather River, Little Grass Valley Reservoir, about 200 yards southwest of the parking lot to the Pacific Crest Trail, about 1/4 mile southwest of the bridge across the South Fork of the Feather River, about 4 miles (air) north of La Porte. 1533 Comment
  CHSC113886  Erythranthe tilingii Lowell Ahart 2014-8-26 19783 Plumas In the center of the South Fork of the Feather River, Little Grass Valley Reservoir, about 200 yards southwest of the parking lot to the Pacific Crest Trail, about 1/4 mile southwest of the bridge across the South Fork of the Feather River, about 4 miles (air) north of La Porte. 1533 Comment
  CHSC113900  Solidago elongata Lowell Ahart 2014-8-24 19746 Plumas Center of the South Fork of the Feather River, Little Grass Valley Reservoir, about 200 yards southwest of the parking lot to the Pacific Crest Trail, about 1/4 mile southwest of the bridge across the South Fork of the Feather River, about 4 miles (air) north of La Porte. 1533 Comment
  CHSC113975  Pseudognaphalium luteoalbum Lowell Ahart 2014-11-16 19889 Plumas Along Black Rock Creek, about 200 yards southwest of the foot bridge across Black Rock Creek, about 200 yards southwest of the Black Rock, Little Grass Valley Reservoir, about 4-1/2 miles (air) northwest of La Porte. 1536 Comment
  CHSC115164  Gayophytum humile Lowell Ahart 2015-6-7 20222 Plumas On the west side of the dirt road, Lava Top, about 2-1/4 miles (air) north of the bridge across Fall River, about one mile southeast of Cascade, about 7 miles (air) northeast of Feather Falls, about 10 miles (air) west of La Porte. 1411 Comment
  CHSC115771  Castilleja miniata subsp. miniata Lowell Ahart; John Deurloo 2015-8-25 20523 Plumas On the north side of Cold Water Creek, about 100 yards east of the bridge, about 5 1/2 miles (air) south of Bucks Lake. 1475 Comment
  CHSC115842  Arceuthobium campylopodum subsp. abietinum Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-7-31 20417 Plumas On the southwest side of Blue Lake, 2710 feet north of Forest Service Road 29N18, 289 air-miles west-southwest of Sifford Mt., 6.26 air-miles south-southeast of Lassen Peak. 1918 Comment
  CHSC30852  Athyrium filix-femina var. cyclosorum L. Ahart 1980-9-17 2653 Plumas Ca. 0.5 mi w of Fowler Peak. 487 Comment
  CHSC30854  Cheilanthes gracillima L. Ahart 1980-9-17 2650 Plumas Ca. 0.5 mi w of Fowler Peak. Ca. 8 mi n of La Porte. 1800 Comment
  CHSC32017  Orobanche californica subsp. jepsonii L. Ahart 1974-8-3 590 Plumas Near the Tramway Mine Mill w of Blue Nose Mt, ca. 1 mi below Bunker Hill Mine, ca. 10 mi ne of La Porte. 1676 Comment
  CHSC32873  Juncus effusus subsp. pacificus L. Ahart 1980-10-6 2665 Plumas On the s shore of the lake ca. 0.5 mi w of Fowler Peak, ca. 2 mi n of Little Grass Valley Reserv. 1700 Comment
  CHSC32875  Myriophyllum sibiricum L. Ahart 1980-9-17 2652 Plumas In the small shallow lake, ca. 0.5 mi w of Fowler Peak, ca. 8 mi n of La Porte. 1600 Comment
  CHSC34328  Salsola tragus L. Ahart 1981-9-6 3091 Plumas On broken rock along the RR on a sandbar along Indian Creek, ca. 1/2 mi sw of the jct of Hwy 89 and Arlington Rd, ca. 1.5 mi sw of Crescent Mills. 1200 Comment
  CHSC37194  Hosackia stipularis var. ottleyi L. Ahart 1982-7-30 3734 Plumas Along the edge of a dirt road, near headwaters of Ohio Ravine, ca. 1 mi ne of Hardquartz Mine, ca. 6 mi s of Bucks Lake. 1700 Comment
  CHSC39368  Allium obtusum var. obtusum L. Ahart; P. Ahart 1983-8-17 4328 Plumas Near Onion Valley, west of Pilot Peak, near the Quincy-LaPorte Rd, northeast of La Porte. 2000 Comment
  CHSC39372  Microseris nutans L. Ahart; P. Ahart 1983-8-17 4326 Plumas Near Onion Valley, west of Pilot Peak, near the Quincy-LaPorte Rd, northeast of La Porte. 2000 Comment
  CHSC40428  Trifolium cyathiferum Lowell Ahart 1985-7-11 5140 Plumas Below the high water line of Little Grass Valley Reservoir, where Black Rock Creek flows into the lake, about 4 miles north-west of La Porte. 1584 Comment
  CHSC40636  Lythrum portula Lowell Ahart 1985-9-26 5176 Plumas Below the high water line of Little Grass Valley Reservoir, where Black Rock Creek flows into the lake, about 4 miles north-west of La Porte. 1584 Comment
  CHSC41417  Lepidium latifolium Lowell Ahart 1986-7-25 5381 Plumas Along Cleghorn Bar Road, a little east of Sawpit Flat, about 1 1/4 miles south-west of Finger Board, about 2 miles north-west of Pilot Peak. 1828 Comment
  CHSC41883  Silene invisa Lowell Ahart 1986-9-10 5396 Plumas About 1/2 mile north-west of Pilot Peak, about 1/2 mile south-east of Onion Valley, about 14 miles north-east of La Porte. 2072 Comment
  CHSC43253  Kyhosia bolanderi Lowell Ahart 1987-10-16 5915 Plumas Meadow, near the dirt road, near Buckhorn Creek, about 4 miles south-west of Bucks Lake. 1676 Comment
  CHSC43414  Silene douglasii Lowell Ahart 1979-7-18 1975 Plumas East of the road, about 1/8 mile south of Onion Valley, about 1 mile north-west of Pilot Peak, about 12 miles north of La Porte. 1828 Comment
  CHSC43449  Lepidium campestre Lowell Ahart 1974-8-9 599 Plumas Along the edge of the road, near Catrell Creek, about 4 miles east of Cold Water Creek. 1524 Comment
  CHSC44324  Leptosiphon ciliatus Lowell Ahart 1974-7-30 562 Plumas About 1/2 mile north of the Bunker Hill Mine, about 12 miles north-east of La Porte. 1828 Comment
  CHSC44877  Iva axillaris Lowell Ahart 1974-7-9 548 Plumas Along the edge of Vinton Loyalton Road (Highway 49), about 4 miles south of Vinton. 1524 Comment
  CHSC46646  Collomia tinctoria Lowell Ahart 1989-7-2 6347 Plumas On the north-west side of Pilot Peak, about 10 miles north-east of La Porte. 2194 Comment
  CHSC47550  Juncus ensifolius Lowell Ahart 1980-10-6 2666 Plumas On the south shore of the small lake about 1 mile west of Fowler Peak, about 2 miles north of Little Grass Valley Reservoir. 1828 Comment
  CHSC63111  Sanicula graveolens Lowell Ahart 1994-7-7 7450 Plumas On the north side of the Pacific Crest Trail, on Bunker Hill Ridge, about 3/4 mile (air) south-east of Pilot Peak. 2011 Comment
  CHSC63270  Galium bifolium Lowell Ahart 1994-6-15 7323 Plumas On the west side of a logging road, near the intersection of Lumpkin Ridge Road and the road to Tamarack Flat, about 1 mile (air) west of Little Grass Valley Reservoir. 1767 Comment
  CHSC63308  Melica fugax Lowell Ahart 1994-6-12 7316 Plumas Near Cedar Flat, on the west side of Faggs Mine Road, south-west of a small branch of Willow Creek, about 1 1/4 miles (air) south of Bucks Lake. 1706 Comment
  CHSC63439  Adiantum aleuticum Lowell Ahart 1994-7-28 7532 Plumas North-east of Frenchman Hill, south-west of Bucks Lake. 1706 Comment
  CHSC63490  Melica stricta Lowell Ahart 1994-7-22 7495 Plumas South of the Pacific Crest Trail, west of the large twin rocks on the north-east side of Mount Etna. 1981 Comment
  CHSC65390  Juncus occidentalis Lowell Ahart 1995-9-13 7628 Plumas On the north side of Onion Valley, east of Quincy La Porte Road, about 1 mile northwest of Pilot Peak. 1828 Comment
  CHSC67449  Senecio integerrimus var. major Lowell Ahart 1977-6-20 X 1433 Plumas One-half mile northeast of the Feather Fork Mine, about 6 miles north of La Porte. 1645 Comment
  CHSC69511  Stephanomeria paniculata Lowell Ahart 1997-9-11 7913 Plumas On the east side of Caribou Road, on the east side of the North Fork of the Feather River, at the elevated siphon, about 2 miles (air) northeast of Belden. 731 Comment
  CHSC80810  Cryptantha torreyana Lowell Ahart 2001-7-17 8934 Plumas On the west side of a branch of Butt Creek, on the north side of the dirt road, a little west of Ruffa Ranch, about 1 mile (air) north of Eagle Rocks, about 2 miles (air) northeast of Humboldt Summit. 1706 Comment
  CHSC80814  Turritis glabra Lowell Ahart 2001-7-19 8940 Plumas Sand bars, on the banks of Hopkins Creek, about 100 yards northwest of the East Branch of Hopkins Creek, about 1/2 mile (air) south of Turkey Town, about 2 1/2 miles (air) southeast ofr Pilot Peak. 1828 Comment
  CHSC80869  Holodiscus microphyllus var. glabrescens Lowell Ahart 2001-7-17 8919 Plumas Meadows, on the east side of a poor logging road, east of a small branch of Butt Creek, about 2 1/2 miles (air) north of Humboldt Summit. 1828 Comment
  CHSC80897  Narthecium californicum Lowell Ahart; Vernon H. Oswald 2001-7-11 8892 Plumas Small meadow, on the east side of the dirt road, about 1/4 mile northwest of Hauns Meadow and Hauns Creek, about 3 miles (air) east of Lake Almanor, about 5 miles (air) northwest of Greenville. 1447 Comment
  CHSC80912  Festuca subulata Lowell Ahart 2001-7-19 8950 Plumas On the sides of Hopkins Creek, about 100 yards southwest of the East Branch of Hopkins Creek, about 1/2 mile (air) south of Turkey Town, about 2 1/2 miles (air) southeast of Pilot Peak. 1828 Comment
  CHSC80914  Melica subulata Lowell Ahart 2001-7-19 8948 Plumas Steep slope, on the east side of Hopkins Creek, about 100 yards southwest of the East Branch of Hopkins Creek, about 1/2 mile (air) south of Turkey Town, about 2 1/2 miles (air) southeast of Pilot Peak. 1828 Comment
  CHSC81097  Pseudognaphalium luteoalbum Lowell Ahart 2001-8-28 9221 Plumas Strand of Lake Almanor, south of the intersection of the dirt road to Last Chance Marsh and the poor dirt road that goes south along Lake Almanor to the causeway of Highway 36, about 3/4 mile northeast of Chester. 1371 Comment
  CHSC81173  Juncus bufonius var. bufonius Lowell Ahart 2001-8-29 9248 Plumas On the bottom of Little Last Chance Creek, on the strand of Frenchman Lake. 1700 Comment
  CHSC81175  Agrostis stolonifera Lowell Ahart 2001-8-28 9192 Plumas Near strand of Lake Almanor, south of the intersection of the dirt road to Last Chance Marsh and the poor dirt road that goes south along Lake Almanor to the causeway of Highway 36, on the west side of the poor dirt road, about 3/4 mile northeast of Chester. 1371 Comment
  CHSC81189  Muhlenbergia filiformis Lowell Ahart 2001-8-28 9190 Plumas Strand of Lake Almanor, west of the intersection of the dirt road to Last Chance Marsh and the poor dirt road that goes south along Lake Almanor to the causeway of Highway 36, about 3/4 mile northeast of Chester. 1371 Comment
  CHSC81344  Symphyotrichum frondosum Lowell Ahart 2001-9-18 9279 Plumas Along Freeman Creek, on the strand of Lake Davis. 1761 Comment
  CHSC81607  Erigeron canadensis Lowell Ahart 2001-10-8 9319 Plumas On the north side of Indian Creek, below or near the highwater line of Antelope Lake, about 24 miles (air) northeast of Quincy. 1524 Comment
  CHSC81739  Thelypteris nevadensis Lowell Ahart 2001-10-16 9391 Plumas On the south side of the dirt road, Butterfly Valley, about a mile south of the pond, about 5 miles (air) northwest of Quincy. 1112 Comment
  CHSC82456  Danthonia californica var. californica Lowell Ahart; John Dittes, Josephine Guardino 2002-7-2 9818 Plumas On the bottom of the water holding pond, about 150 yards north of Forest Road 22N94, on Hartman Bar Ridge, about 1 mile (air) southwest of Franklin Hill, about 4 1/2 miles (air) northwest of Tamarack Flat, about 9 miles (air) northwest of La Porte. 1597 Comment
  CHSC82479  Calyptridium umbellatum Lowell Ahart 2002-6-26 9778 Plumas On the east side of the poor road, about 1/2 mile south of the intersection of Lumpkin Ridge Road and the road to Tamarack Flat, about 1 mile (air) northwest of Little Grass Valley Reservoir dam, about 4 miles (air) northwest of La Porte. 1796 Comment
  CHSC82545  Trifolium wormskioldii Lowell Ahart 2002-7-18 9871 Plumas In a meadow, on the north side of a small upper branch of Fall River, about 100 yards north of Lumpkin Ridge Road, about 1 mile (air) southeast of Tamarack Flat, about 1/4 mile southwest of the intersection of Lumpkin Ridge Road and road to Tamarack Flat, about 1 1/2 miles (air) northwest of Little Grass Valley Reservoir dam, about 4 1/2 miles (air) northwest of La Porte. 1701 Comment
  CHSC82551  Botrychium simplex var. compositum Lowell Ahart 2002-7-18 9863 Plumas Meadow, about 40 yards south of the road to Tamarack Flat, on the north side of a small branch of Fall River, about 1/8 mile southwest of the intersection of Lumpkin Ridge Road and road to Tamarack Flat, about 1 mile (air) northwest of Little Grass Valley Reservoir dam, about 4 miles (air) northwest of La Porte. 1714 Comment
  CHSC82563  Cryptantha simulans Lowell Ahart 2002-7-18 9861 Plumas Basalt ridge, about 1/8 mile north of the intersection of Lumpkin Ridge Road and road to Tamarack Flat, about 1 1/2 miles (air) northwest of Little Grass Valley Reservoir dam, about 4 1/2 miles (air) northwest of La Porte. 1764 Comment
  CHSC84176  Juncus nevadensis Lowell Ahart 2003-7-18 10421 Plumas On the sides of a drainage in a meadow, on the north side of the road, about 1/4 mile west of Lumpkin Ridge Road, about 1 1/2 miles southeast of Tamarack Flat, about 1 1/2 miles (air) northwest of Little Grass Valley Reservoir dam, about 4 1/2 miles (air) northwest of La Porte. 1709 Comment
  CHSC88008  Epilobium hallianum Lowell Ahart; John Dittes, Josephine Guardino, Robert Schlising 2004-7-3 11163 Plumas Around a small meadow, on the north side of a forest road, about 1/4 mile north of Taylor rock, about 1 mile (air) southwest of Grizzly Peak, about 5 miles (air) south of Taylorsville, about 8 miles (air) northeast of Quincy. 2139 Comment
  CHSC88155  Epilobium glaberrimum subsp. glaberrimum Lowell Ahart 2004-7-27 11316 Plumas Along Hopkins Creek, about 200 yards north of the fork of Hopkins Creek and the East Branch of Hopkins Creek, about 3/4 mile south of Turkeytown, about 1 mile (air) southwest of Blue Nose Mountain, about 10 miles (air) northeast of La Porte. 1645 Comment
  CHSC91947  Deschampsia elongata Lowell Ahart; Josephine Guardino 2005-8-9 12275 Plumas Depression (mining?) in a small drainage that runs into Fant Creek, west of the meadow, about 250 yards southwest of Fant Creek and the corral, north of Forest Road 27N09, about 6 miles (air) northwest of the Boulder Creek Work Center at Antelope Lake. 1597 Comment
  CHSC92180  Madia gracilis Lowell Ahart; John Dittes 2005-9-19 12409 Plumas Along the east side of a good dirt road, about 1 1/4 miles southeast of Kettle Rock, about 1 1/4 miles southeast of Taylor Lake. 1986 Comment
  CHSC92182  Polygonum douglasii subsp. douglasii Lowell Ahart; John Dittes 2005-9-19 12403 Plumas Along the sides of a good dirt road, about 1 1/4 miles east of Kettle Rock, about 1 1/4 miles southeast of Taylor Lake. 1989 Comment
  CHSC92184  Madia glomerata Lowell Ahart; John Dittes 2005-9-19 12401 Plumas Along the sides of a good dirt road, about 1 1/4 miles east of Kettle Rock, about 1 1/4 miles southeast of Taylor Lake. 1989 Comment
  CHSC92310  Carex pachystachya Lowell Ahart; Josephine Guardino 2005-8-9 12256 Plumas In a small meadow and near a small drainage, between Lights Creek and Fant Creek, west of Forest Road 27N09, about 6 miles (air) northwest of the Boulder Creek Work Center at Antelope Lake. 1635 Comment
  CHSC94117  Carex brainerdii Lowell Ahart 2006-7-3 12901 Plumas Near the southwest edge of a basalt flat, about 1/4 mile north of Lumpkin Ridge Road, on Lumpkin Ridge, about 4 miles (air) northeast of Camp 18. 1527 Comment
  CHSC94190  Viola tomentosa Lowell Ahart 2006-7-3 12900 Plumas On Lumpkin Ridge, about 4 miles (air) northeast of Camp 18, west edge of a dry open basalt flat. 1527 Comment
  CHSC94192  Streptanthus tortuosus var. orbiculatus Lowell Ahart 2006-7-3 12904 Plumas On Lumpkin Ridge, about 4 miles (air) northeast of Camp 18, near the south edge of a dry open basalt flat. 1527 Comment
  CHSC94634  Gratiola neglecta Lowell Ahart 2006-10-8 13422 Plumas On the east bank of Chips Creek, southeast of the bridge on Highway 70, on the north side of the North Fork of the Feather River, about 1 1/4 miles southwest of Belden. 715 Comment
  CHSC94667  Dysphania pumilio Lowell Ahart 2006-10-8 13413 Plumas On the east bank of Chips Creek, southeast of the bridge on Highway 70, on the north side of the North Fork of the Feather river, about 1 1/4 miles southwest of Belden. 715 Comment
  CHSC94728  Cuscuta subinclusa Lowell Ahart 2006-11-21 13342 Plumas On the south side of Bucks Lake Road, south of the spring at Bucks Summit, about 3 miles northeast of Bucks Lake. 1516 Comment
  CHSC94969  Calocedrus decurrens Lowell Ahart 2006-9-28 13387 Plumas On the west side of the North Fork of the Feather River, on the west side of Highway 70, at Indian Jim Campground, about 3/4 mile southwest of Chambers Creek. 646 Comment
  CHSC94997  Juncus tenuis Lowell Ahart 2006-10-23 13491 A Plumas On the west side of Slate Creek (there is a large gravel flat caused by the dam), about 30 yards south of where the road ends, about 20 yards north of the dam across Slate Creek, about 1/8 mile northeast of Scales Road, about 5 1/2 miles (air) northeast of Strawberry Valley. 1281 Comment
  CHSC95003  Sagina saginoides Lowell Ahart 2006-10-23 13478 Plumas On the west side of Slate Creek (there is a large gravel flat caused by the dam), about 30 yards south of where the road ends, about 20 yards north of the dam across Slate Creek, about 1/8 mile northeast of Scales Road, about 5 1/2 miles (air) northeast of Strawberry Valley. 1281 Comment
  CHSC97082  Symphyotrichum campestre Lowell Ahart; Josephine Guardino 2007-7-21 14362 Plumas Near a small stream, near a spring, open dry flat, south of the dirt road, about 1/2 mile (air) south of Bagley Pass, about 400 yards north of Lake Davis. 1787 Comment
  CHSC97084  Juncus balticus subsp. ater Lowell Ahart; Josephine Guardino 2007-7-20 14331 Plumas Strand of Lake Davis, about 100 yards west of Long Point, northeast side of Lake Davis. 1763 Comment
  CHSC97140  Phacelia humilis var. humilis Lowell Ahart; John Dittes, Josephine Guardino 2007-6-8 14005 Plumas East side of an open rocky flat, 60 yards east of a poor dirt road, about a mile (air) north of the north end of Lake Davis. 1965 Comment
  CHSC97144  Veronica peregrina subsp. xalapensis Lowell Ahart; John Dittes, Josephine Guardino 2007-6-8 14029 Plumas Strand of Lake Davis, southeast of the end of the road, north end of Lake Davis. 1763 Comment
  CHSC97162  Salix exigua Lowell Ahart; John Dittes, Josephine Guardino 2007-6-8 14024 Plumas Strand of Lake Davis, southeast of the end of the road, north end of Lake Davis. 1763 Comment
  CHSC97164  Potentilla rivalis Lowell Ahart; John Dittes, Josephine Guardino 2007-6-8 14034 Plumas Strand of Lake Davis, southeast of the end of the road, north end of Lake Davis. 1763 Comment
  CHSC97178  Antennaria dimorpha Lowell Ahart; John Dittes, Josephine Guardino 2007-6-9 14039 Plumas Along the west side of a poor dirt road, about a mile (air) north of the north end of Lake Davis. 1857 Comment
  CHSC97217  Rumex conglomeratus Lowell Ahart; Josephine Guardino 2007-7-20 14347 Plumas Strand of Lake Davis, about 100 yards west of Long Point, northeast side of Lake Davis. 1763 Comment
  CHSC97290  Juncus ensifolius Lowell Ahart; John Dittes, Josephine Guardino 2007-8-10 14471 Plumas About 100 yards south of Beckwourth Gensee Road, there is a small quarry east of a poor road, the meadow and stream, about 2 miles (air) north of the north end of Lake Davis. 1761 Comment
  CHSC97292  Carex straminiformis Lowell Ahart; John Dittes 2007-8-9 14442 Plumas About 80 yards north of the road, on the north slope of Mount Ingalls, about 6 miles (air) northwest of the north end of Lake Davis. 2551 Comment
  CHSC97294  Carex sheldonii Lowell Ahart; John Dittes, Josephine Guardino 2007-8-10 14464 Plumas About 20 yards south of Beckwourth Gensee Road, there is a small quarry east of a poor road, the meadow and stream, about 2 miles (air) north of the north end of Lake Davis. 1761 Comment
  CHSC97470  Erythranthe breweri Lowell Ahart; John Dittes 2007-6-16 14151 Plumas On the sides of a small stream, about 200 yards south of County Road 111 (Beckwourth Genesee Road), 20 yards east of Forest Road 24N08, Red Clover Valley, about 2 miles (air) north of the north end of Lake Davis. 1647 Comment
  CHSC97515  Cryptantha torreyana Lowell Ahart; John Dittes 2007-6-17 14157 Plumas On a low rocky open hill, about 20 yards southwest of Red Clover Creek, about 20 yards east of County Road 111 (Beckwourth Genesee Road), about 1/4 mile east of bridge across Red Clover Creek, Red Clover Valley, about 2 miles (air) north of the north end of Lake Davis. 1654 Comment
  CHSC97529  Equisetum laevigatum Lowell Ahart; John Dittes 2007-6-16 14148 Plumas On the bottom of a small stream, about 200 yards south of County Road 111 (Beckwourth Genesee Road), 20 yards east of Forest Road 24N08, Red Clover Valley, about 2 miles (air) north of the north end of Lake Davis. 1647 Comment
  CHSC97588  Achillea millefolium Lowell Ahart; John Dittes 2007-6-16 14122 Plumas West of a smalll stream, on the south side of County Road 111 (Beckwourth Genesee Road), 10 yards east of Forest Road 24N08, Red Clover Valley, about 2 miles (air) north of the north end of Lake Davis. 1647 Comment
  CHSC97610  Achnatherum nevadense Lowell Ahart; John Dittes 2007-6-17 14156 Plumas On dry bare rocky soil, on a low rocky open hill, about 20 yards southwest of Red Clover Creek, about 20 yards east of County Road 111 (Beckwourth Gensee Road), about 1/4 mile east of bridge across Red Clover Creek, Red Clover Valley, about 2 miles (air) north of the north end of Lake Davis. 1654 Comment
  CHSC97612  Muhlenbergia richardsonis Lowell Ahart; John Dittes 2007-6-17 14166 Plumas On damp soil, along bank of Red Clover Creek, about 30 yards east of County Road 111 (Beckwourth Gensee Road), about 1/4 mile east of bridge across Red Clover Creek, Red Clover Valley, about 2 miles (air) north of the north end of Lake Davis. 1654 Comment
  CHSC97614  Carex sheldonii Lowell Ahart; John Dittes 2007-6-17 14166 Plumas On damp soil, west bank of Red Clover Creek, about 30 yards east of County Road 111 (Beckwourth Gensee Road), about 1/4 mile east of bridge across Red Clover Creek, Red Clover Valley, about 2 miles (air) north of the north end of Lake Davis. 1654 Comment
  CHSC99801  Gratiola ebracteata Lowell Ahart 2008-7-9 15063 Plumas Edges of a small pond, south of the road, about 1/2 mile northwest of the dam at Little Grass Valley Reservoir, about 4 miles (air) northwest of La Porte. 1689 Comment
  CHSC99813  Perideridia lemmonii Lowell Ahart 2008-8-13 15168 Plumas East of La Porte Road, east bank of East Branch Creek, about 1 3/4 miles (air) south of Little Grass Valley Reservoir, about one mile northeast of La Porte. 1613 Comment
  CHSC99829  Pseudostellaria jamesiana Lowell Ahart 2008-7-16 15100 Plumas Dry open area west of a small meadow (swamp), north of a small deep stream, about 130 yards north of the paved road, about 1/4 miles west of the bridge where the South Fork of the Feather River flows into Little Grass Valley Reservoir, about 2 1/2 miles (air) north of La Porte. 1597 Comment
  HSC100724  Lotus corniculatus Lowell Ahart, John Dittes 2009-7-14 16077 Plumas E side of F.S. Rd. 26N22 and 26N221, 2.6 (air) mi. SE of Seneca, 6.5 (air) mi. S of Lake Almanor Reservoir Dam. 1608 Comment
  JEPS102358  Cryptantha torreyana Lowell Ahart 2001-7-17 8934 Plumas about 2 air miles NE of Humboldt Summit (W side of a branch of Butt Creek, on N side of dirt road a little W of Ruffa Ranch, 1 air mile n of Eagle Rocks) 1706 Comment
  JEPS102477  Conyza canadensis Lowell Ahart 2001-10-8 9319 Plumas On the north side of Indian Creek, below or near the highwater line of Antelope Lake, about 24 miles (air) NE of Quincy. 1524 Comment
  JEPS102526  Rosa woodsii subsp. ultramontana Lowell Ahart 2001-8-28 9202 Plumas Near strand of Lake Almanor, south of the intersection of the dirt road to Last Chance Marsh and the poor dirt road that goes south along Lake Almanor to the causeway of Highway 36, about 3/4 mile NE of Chester. 1371 Comment
  JEPS102555  Bidens frondosa Lowell Ahart 2001-10-16 9367 Plumas On a high bank, and the north side of a small stream, on the NW side of Round Valley Reservoir, about 2 1/2 miles SW of Greenville. 1363 Comment
  JEPS102588  Osmorhiza chilensis Lowell Ahart 2001-7-17 8913 Plumas On the west side of a poor logging road, east of a small branch of Butt Creek, about 2 1/2 miles (air) north of Humboldt Summit. 1828 Comment
  JEPS102615  Lupinus lepidus var. confertus Lowell Ahart 2001-7-11 8886 Plumas On the south side of Highway 89, west of the spillway on the dam at Lake Almanor. 1374 Comment
  JEPS102654  Plantago major Lowell Ahart 2001-8-29 9252 Plumas On the west side of Little Last Chance Creek, on the strand of Frenchman Lake. 1700 Comment
  JEPS102720  Eleocharis bella Lowell Ahart 2001-10-8 9325 Plumas In shallow water of an unnamed stream, east of Lost Cove, below the high water line of Antelope Lake, NE side of Antelope Lake, about 24 miles (air) NE of Quincy. 1522 Comment
  JEPS102721  Eleocharis acicularis Lowell Ahart 2001-10-8 9322 Plumas Below the high water line of Antelope Lake, at the day camp that is north of Dedication Island, Antelope Lake, about 24 miles (air) NE of Quincy. 1522 Comment
  JEPS102740  Gilia capillaris Lowell Ahart 2001-7-17 8933 Plumas On the west side of a branch of Butt Creek, on the north side of the dirt road, a little west of Ruffa Ranch, about 1 mile (air) north of Eagle Rocks, about 2 miles (air) NE of Humboldt Summit. 1706 Comment
  JEPS102741  Eleocharis parishii Lowell Ahart and Vernon H. Oswald 2001-7-11 8890 Plumas Meadow, on the east side of the dirt road, about 1/4 mile NW of Hauns Meadow and Hauns Creek, about 3 miles (air) east of Lake Almanor, about 5 miles (air) NW of Greenville. 1447 Comment
  JEPS102762  Eleocharis acicularis Lowell Ahart 2001-9-24 9195 Plumas Strand of Lake Almanor, west of the intersection of the dirt road to Last Chance Marsh and the poor dirt road that goes south along Lake Almanor to the causeway of Highway 36, about 3/4 mile NE of Chester. 1371 Comment
  JEPS102809  Cirsium arvense Lowell Ahart 2001-9-18 9272 Plumas About 100 feet north of the pond, Butterfly Valley, about 5 miles (air) NW of Quicy. 1104 Comment
  JEPS103309  Trifolium wormskioldii Lowell Ahart 2002-7-18 9871 Plumas On the N side of a small upper branch of Fall River, ca 100 yards N of Lumpkin Ridge Road, ca 1 mile (air) SE of Tamarack Flat, ca 1/4 mile SW of Lumpkin Ridge Road and road to Tamarack Flat, ca 1 1/2 miles (air) NW of Little Grass Valley Reservoir dam 1701 Comment
  JEPS103402  Spiraea densiflora Lowell Ahart 2002-7-2 9826 Plumas In a logged over area on the S side of Forest Road 22N94, E of Forest Road 22N94E, on Hartman Bar Ridge, ca 1 mile (air) SW of Franklin Hill, ca 4 1/2 miles (air) NW of Tamarack Flat, ca 9 miles (air) NW of La Porte. 1606 Comment
  JEPS103433  Leucothoe davisiae Lowell Ahart 2002-7-6 9842 Plumas On the S side of the dirt road and S of the large meadow, on Rock Island Ridge, ca 3/4 mile SE of Soapstone Hill and the Oroville Quincy Highway, ca 1 1/2 miles (air) NE of Four Trees. 1611 Comment
  JEPS104156  Cystopteris fragilis Lowell Ahart 2003-10-17 10643 Plumas Cliffs ne of Humboldt Peak, ca 3/4 mi e of Humboldt Summit, ca 8 mi (air) ne of Butte Meadows. 2103 Comment
  JEPS104253  Abies magnifica var. magnifica Lowell Ahart 2003-10-15 10633 Plumas Ca 60 yd s of road to Tamarack Flat, on s side of a very small branch of Fall River, ca 1/8 mi w of intersection of Lumpkin Ridge Rd and road to Tamarack Flat, ca 1 mi (air) nw of Little Grass Valley Reservoir dam, ca 4 mi (air) nw of La Porte 1714 Comment
  JEPS104589  Juncus nevadensis Lowell Ahart 2003-7-18 10421 Plumas On sides of a drainage in a meadow, on n side of road, ca 1/4 mile w of Lumpkin Ridge Road, ca 1 1/2 miles se of Tamarack Flat, ca 1 1/2 miles (air) nw of Little Grass Valley Reservoir dam, ca 4 1/2 miles (air) northwest of La Porte. 1709 Comment
  JEPS104632  Epilobium brachycarpum Lowell Ahart 2003-8-8 10481 Plumas On the w side of Beckwouth Calpine Rd, ca 50 yd n of the Western Pacific Railroad, ca 1/2 mi (air) sw of Beckwourth, Sierra Valley. 1478 Comment
  JEPS104652  Mimulus microphyllus Lowell Ahart 2003-7-18 10425 Plumas In a meadow, on the n side of the road, ca 1/4 mi w of Lumpkin Ridge Rd, ca 1 1/2 mi se of Tamarack Flat, ca 1 1/2 mi (air) nw of Little Grass Valley Reservoir dam, ca 4 1/2 mi (air) nw of La Porte. 1709 Comment
  JEPS105989  Lupinus onustus Lowell Ahart, John Dittes, Josephine Guardino 2004-5-24 10952 Plumas On the east side of an old logging road, about 400 yards south of a good dirt forest road, about 1/8 mile north of the railroad, Greenhorn Creek, and Highway 70, about 3/4 mile west of Squirrel Creek, about 7 miles (air) southeast of Quincy 1230 Comment
  JEPS106029 Image available Ribes nevadense Lowell Ahart, John Dittes, Josephine Guardino 2004-5-16 10911 Plumas On the east side of Forest Road 25N10, about 2 miles (air) west of Grizzly Peak, about 8 miles (air) northeast of Quincy 1804 Comment
  JEPS106197  Viola sheltonii Lowell Ahart, John Dittes, Josephine Guardino 2004-5-16 10914 Plumas On the east side of Forest Road 25N10, about 2 miles (air) west of Grizzly Peak, about 8 miles (air) northeast of Quincy 1804 Comment
  JEPS106228  Trifolium kingii var. productum Lowell Ahart, John Dittes, Josephine Guardino, Robert Schlising 2004-7-3 11179 Plumas On the north side of a forest road, about 1/4 mile north of Taylor rock, about 1 mile (air) southwest of Grizzly Peak, about 5 miles (air) south of Taylorsville, about 8 miles (air) northeast of Quincy 2053 Comment
  JEPS106380  Carex filifolia var. erostrata Lowell Ahart, John Dittes, Josephine Guardino, Robert Schlising 2004-6-14 11060 Plumas Near the west shore of Lake Davis, north of the dirt road at Lake Davis, about 12 miles (air) northeast of Slote 1765 Comment
  JEPS107630  Eriogonum umbellatum var. polyanthum Lowell Ahart, Josephine Guardino 2005-8-9 12288 Plumas North of Fant Creek, about 50 yards north of the cabin (destroyed) and corral, north of Forest Road 27N09, about 6 miles (air) northwest of the Boulder Creek Work Center at Antelope Lake 1597 Comment
  JEPS107631  Descurainia incisa subsp. filipes Lowell Ahart, Josephine Guardino 2005-8-9 12280 Plumas Northeast of the cabin (destroyed) and corral, on the south side of Fant Creek, north of Forest Road 27N09, about 6 miles (air) northwest of the Boulder Creek Work Center at Antelope Lake 1597 Comment
  JEPS107684  Cheilanthes gracillima Lowell Ahart, John Dittes 2005-9-19 12374 Plumas On south side of Taylor Lake, about 6 miles (air) southwest of Antelope Lake 2080 Comment
  JEPS107704  Polygonum arenastrum Lowell Ahart, John Dittes 2005-9-19 12410 Plumas Along the east side of a good dirt road, about 1 1/4 miles southeast of Kettle Rock, about 1 1/4 miles southeast of Taylor Lake 1986 Comment
  JEPS107716  Symphoricarpos rotundifolius var. rotundifolius Lowell Ahart, John Dittes 2005-9-19 12385 Plumas On dry dark rocky soil, on the east side of Taylor Lake, about 6 miles (air) southwest of Antelope lake 2080 Comment
  JEPS107724  Cirsium andersonii Lowell Ahart, John Dittes 2005-9-20 12432 Plumas The northwest side of Mud Lake, about 1/2 mile northeast of Eisenheimer Peak, about 3/4 mile south of Wilcox Valley 2029 Comment
  JEPS107933  Juncus howellii Lowell Ahart, John Dittes 2005-9-19 12418 Plumas Along the west side of a good dirt road, about 1 1/4 miles southeast of Kettle Rock, about 1 1/4 miles southeast of Taylor Lake 1998 Comment
  JEPS110522  Polygonum persicaria Lowell Ahart 2006-10-23 13496 Plumas On the west side of Slate Creek (there is a large gravel flat caused by the dam), about 30 yards south of where the road ends, about 20 yards north of the dam across Slate Creek, about 1/8 mile northeast of Scales Road, about 5 1/2 miles (air) northeast 1281 Comment
  JEPS110542  Juncus bufonius var. bufonius Lowell Ahart 2006-10-23 13489 Plumas On the west side of Slate Creek (there is a large gravel flat caused by the dam), about 30 yards south of where the road ends, about 20 yards north of the dam across Slate Creek, about 1/8 mile northeast of Scales Road, about 5 1/2 miles (air) northeast o 1281 Comment
  JEPS113385  Castilleja applegatei subsp. pinetorum Lowell Ahart, John Dittes, Josephine Guardino 2007-6-9 14054 Plumas About 100 yards east of a poor dirt road, about a mile (air) north of the north end of Lake Davis 1857 Comment
  JEPS113434  Penstemon gracilentus Lowell Ahart, John Dittes 2007-8-9 14448 Plumas About 100 yards east of the poor dirt road, about 1/2 mile south of Mount Ingalls, about 5 1/2 miles (air) northwest of the north end of Lake Davis 2493 Comment
  JEPS113514  Pterospora andromedea Lowell Ahart, John Dittes, Josephine Guardino 2007-8-10 14478 Plumas About 120 yards south of Beckwourth Gensee Road, there is a small quarry east of a poor road, the meadow and stream, about 2 miles (air) north of the north end of Lake Davis 1761 Comment
  JEPS113526  Stellaria longipes var. longipes Lowell Ahart, John Dittes 2007-6-17 14188 Plumas Meadow, about 100 yards southwest of County Road 111 (Beckwourth Genesee Road), about 1/4 mile southeast of bridge across Red Clover Creek, Red Clover Valley, about 2 miles (air) north of the north end of Lake Davis 1654 Comment
  JEPS113535  Rosa woodsii var. ultramontana Lowell Ahart, Josephine Guardino 2007-7-20 14323 Plumas North of a small drainage, northeast of a large meadow, east of Lighting Tree Campground, east of the paved road, east side of Lake Davis 1789 Comment
  JEPS113546  Symphyotrichum campestre Lowell Ahart, Josephine Guardino 2007-7-21 14362 Plumas Near a small stream, near a spring, open dry flat, south of the dirt road, about 1/2 mile (air) south of Bagley Pass, about 400 yards north of Lake Davis 1787 Comment
  JEPS113588  Erigeron divergens Lowell Ahart, Josephine Guardino 2007-7-20 14337 Plumas Strand of Lake Davis, about 100 yards west of Long Point, northeast side of Lake Davis 1763 Comment
  JEPS113654  Carex douglasii Lowell Ahart, John Dittes 2007-6-16 14134 Plumas East of a small stream, on the south side of County Road 111 (Beckwourth Genesee Road), 50 yards east of Forest Road 24N08, Red Clover Valley, about 2 miles (air) north of the north end of Lake Davis 1647 Comment
  JEPS113677  Agrostis scabra Lowell Ahart, Josephine Guardino 2007-7-20 14340 Plumas Strand of Lake Davis, about 100 yards west of Long Point, northeast side of Lake Davis 1763 Comment
  JEPS113741  Navarretia intertexta subsp. propinqua Lowell Ahart, Josephine Guardino 2007-7-20 14349 Plumas Strand of Lake Davis, about 100 yards southeast of Long Point, northeast side of Lake Davis 1763 Comment
  JEPS113829  Eriogonum spergulinum var. reddingianum Lowell Ahart, John Dittes 2007-6-17 14175 Plumas Near wire box, about 100 yards southwest of County Road 111 (Beckwourth Genesee Road), about 1/4 mile southeast of Bridge across Red Clover Creek, Red Clover Valley, about 2 miles (air) north of the north end of Lake Davis 1654 Comment
  JEPS114416  Senecio triangularis Lowell Ahart 2008-7-16 15096 Plumas In a small meadow (swamp), north of a small deep stream, about 130 yards north of the paved road, about 1/4 mile west of the bridge where the South Fork of the Feather River flows into Little Grass Valley Reservoir, about 2 1/2 miles (air) north of La Por 1597 Comment
  JEPS114424  Luzula cascadensis Lowell Ahart 2008-7-9 15062 Plumas Near seeps, on the west side of the good logging road , about 100 yards south of a small stream, north of the South Fork of the Feather River, about 1/2 mile southwest of the Feather Fork Mine, about 1 mile northeast of Little Grass Valley Reservoir 1645 Comment
  JEPS114525  Heterocodon rariflorum Lowell Ahart 2008-8-14 15209 Plumas West edge of a small wet meadow, about 150 yards northeast of the good logging road (Forest Road 22N68), west of the South Fork of the Feather River, about 1/2 mile southwest of the Feather Fork Mine, about 1 mile northeast of Little Grass Valley Reservoi 1600 Comment
  JEPS114799  Trifolium wormskioldii Lowell Ahart 2008-8-13 15185 Plumas North edge of La Porte Road, north of East Branch Creek, about 1 3/4 miles (air) south of Little Grass Valley Reservoir, about one mile northeast of La Porte 1613 Comment
  JEPS114890  Juncus howellii Lowell Ahart 2008-9-10 15367 Plumas On the west bank of East Branch Creek, on the east side of Quincy La Porte Road, about 1 3/4 miles (air) south of Little Grass Valley Reservoir, about one mile northeast of La Porte 1593 Comment
  JEPS115086  Chimaphila umbellata Lowell Ahart, John Dittes 2009-7-14 16060 Plumas On dry soil, near a seep, on the north side of Forest Service Road 27N98, headwater of Clear Creek, about 2.0 miles (air) north of Butt Valley Reservoir Dam, about 3 miles (air) southwest of Lake Almanor Reservoir Dam 1476 Comment
  JEPS115100  Lotus corniculatus Lowell Ahart, John Dittes 2009-7-14 16077 Plumas Scraped clearing on the east side of Forest Service Road 26N22 and Forest Service Road 26N221, about 2.6 miles (air) southeast of Seneca, about 6 1/2 miles (air) south of Lake Almanor Reservoir Dam 1607 Comment
  JEPS115117  Cirsium arvense Lowell Ahart, John Dittes, Josephine Guardino 2009-7-29 16242 Plumas On damp bare soil, below the high water line of Lake Almanor, 1,849 feet northwest of Lake Almanor Dam 1591 Comment
  JEPS115121  Cryptantha torreyana Lowell Ahart, John Dittes, Josephine Guardino 2009-7-29 16223 Plumas On amp bare soil, below the high water line of Lake Almanor, 1,849 feet northwest of Lake Almanor Dam 1591 Comment
  JEPS115162  Kelloggia galioides Lowell Ahart, John Dittes 2009-7-15 16083 Plumas On dry rocky soil, near a small wash, on the south side of Forest Service Road 26N671, northeast of Forest Service Road 26N67, about 2.8 miles (air) southeast of Butt Valley Reservoir Dam 1702 Comment
  JEPS115175  Senecio triangularis Lowell Ahart, John Dittes 2009-7-13 16045 Plumas On damp to wet soil, seep, on the north side of Forest Service Road 27N98, headwater of Clear Creek, about 2.0 miles (air) north of Butt Valley Reservoir Dam, about 3 miles (air) southwest of Lake Almanor Reservoir Dam 1476 Comment
  JEPS115229  Piperia unalascensis Lowell Ahart, John Dittes 2009-7-15 16088 Plumas On dry rocky soil, open forest, on the northwest side of Forest Service Road 26N671, northeast of Forest Service Road 26N67, about 2.8 miles (air) southeast of Butt Valley Reservoir Dam 1702 Comment
  JEPS115332  Rorippa curvisiliqua var. orientalis Lowell Ahart, John Dittes 2009-9-7 16379 Plumas Below the high water line of Lake Almanor, about 2000 feet northwest of Lake Almanor Dam 1591 Comment
  JEPS115519  Crassula aquatica Lowell Ahart, John Dittes 2009-9-7 16388 Plumas On damp bare soil, below the high water line of Lake Almanor, about 2000 feet northwest of Lake Almanor Dam 1591 Comment
  JEPS115804  Montia linearis Lowell Ahart, John Dittes, Josephine Guardino 2009-6-15 15901 Plumas About 200 yards northwest of Lake Almanor Dam, depression in mined over area 1421 Comment
  JEPS115925  Cyperus squarrosus Lowell Ahart, John Dittes, Josephine Guardino 2009-7-29 16227 Plumas On dry to damp bare soil, below the high water line of Lake Almanor, 1,849 feet northwest of Lake Almanor Dam 1591 Comment
  JEPS115936  Carex bolanderi Lowell Ahart, John Dittes 2009-7-13 16031 Plumas On damp to wet soil, seep, on the north side of Forest Service Road 27N98, headwater of Clear Creek, about 2.0 miles (air) north of Butt Valley Reservoir Dam, about 3 miles (air) southwest of Lake Almanor Reservoir Dam 1476 Comment
  JEPS115945  Elytrigia intermedia subsp. intermedia Lowell Ahart, John Dittes 2009-7-13 16040 Plumas On dry soil, on the east side of Forest Service Road 27N98, headwater of Clear Creek, about 2.0 miles (air) north of Butt Valley Reservoir Dam, about 3 miles (air) southwest of Lake Almanor Reservoir Dam 1476 Comment
  JEPS115987  Deschampsia danthonioides Lowell Ahart, John Dittes, Josephine Guardino 2009-6-15 15897 Plumas About 200 yards northwest of Lake Almanor Dam, depressions in mined over area 1421 Comment
  JEPS117158  Schoenoplectus subterminalis Lowell Ahart 2010-10-21 17312 Plumas East side of Fowler Lake, about 3/8 mile south of the dirt road, about 2 miles (air) north of where Black Rock Creek flows into Little Grass Valley Reservoir, about 6 miles (air) north-northwest of La Porte 1662 Comment
  JEPS117313  Ivesia sericoleuca Lowell Ahart, John Dittes 2010-10-5 17297 Plumas On the south side of Meadow Ridge Lane, Humbug Valley, 830 feet south of Highway 70, 2.1 miles (air) west of Portola (High School) 1473 Comment
  JEPS117529  Carex nebrascensis Lowell Ahart 2010-9-9 17144 Plumas Small gravel bar on the east side of East Branch Creek, on the east side of Quincy La Porte Road, about 1 3/4 miles (air) south of Little Grass Valley Reservoir, about one mile northeast of La Porte 1593 Comment
  JEPS118406  Ericameria nauseosa var. speciosa Lowell Ahart 2011-9-17 17676 -B Plumas On the west side of Lumpkin Ridge Road, about 2 miles (air) west of Little Grass Valley Reservoir Dam 1687 Comment
  JEPS118426  Luzula cascadensis Lowell Ahart 2011-9-20 17687 Plumas Moist open area along a very small stream, on the north side of the poor dirt road on the north side of Pilot Peak, about 9 miles (air) northeast of La Porte 2072 Comment
  JEPS119929  Actaea rubra Lowell Ahart 2012-9-5 18433 Plumas About 200 yards east of the County Road where it crosses the South Fork of the Feather River, about 3/4 mile (air) southwest of Pilot Peak, about 8 1/2 miles (air) northeast of La Porte. Comment
  JEPS119949  Penstemon roezlii Lowell Ahart 2012-9-5 18446 Plumas Road edge where the County Road crosses the South Fork of the Feather River, about 1 mile (air) southwest of Pilot Peak, about 8 1/4 miles (air) northeast of La Porte. Comment
  JEPS120172  Athyrium filix-femina var. cyclosorum Lowell Ahart 2012-9-5 18432 Plumas About 200 yards east of the County Road where it crosses the South Fork of the Feather River, about 3/4 mile (air) southwest of Pilot Peak, about 8 1/2 miles (air) northeast of La Porte. Comment
  JEPS122237  Juncus tenuis Lowell Ahart 2014-9-9 19852 Plumas Below the high water line, on the west side of Sly Creek, Sly Creek Reservoir, about 7 miles (air) southwest of La Porte. Comment
  JEPS124037  Heterocodon rariflorum Lowell Ahart 2015-7-4 20282 Plumas About 1/2 mile west of the intersection of Lumpkin Ridge Road and road to Tamarack Flat, about 1 1/2 miles (air) northwest of Little Grass Valley Reservoir Dam. Comment
  JEPS124101  Mentzelia dispersa Lowell Ahart 2015-6-7 20212 Plumas Lava Top, about 2 1/4 miles (air) north of the bridge across Fall River, about one mile southeast of Cascade, about 7 miles (air) northeast of Feather Falls, about 10 miles (air) west of La Porte. Comment
  JEPS124140  Castilleja miniata subsp. miniata Lowell Ahart, John Deurloo 2015-8-25 20523 Plumas About 100 yards east of the bridge, about 5 1/2 miles (air) south of Bucks Lake. Comment
  JEPS126588  Penstemon roezlii Lowell Ahart 2016-6-29 21074 Plumas East part of Table Mountain, about 2 miles (air) northwest of Tamarack Flat, about 4 miles (air) northwest of Little Grass Valley Reservoir Dam. Comment
  JEPS127122  Eurybia integrifolia Lowell Ahart 2016-8-30 21321 Plumas About 100 yards west of the Pacific Crest Trail on Bunker Hill Ridge, about 1 1/2 miles (air) southeast of Pilot Peak. Comment
  JEPS127331  Eriogonum umbellatum var. modocense Lowell Ahart 2016-7-9 21084 Plumas Top and on the east side of Table Mountain, about 2 miles (air) northwest of Tamarack Flat, about 4 miles (air) northwest of Little Grass Valley Reservoir Dam. Comment
  JEPS87599  Descurainia incana Lowell Ahart 1994-7-7 7451 Plumas about 0.75 air mi se Pilot Peak (on n side of Pacific Crest Trail, on Bunker Hill Ridge, Plumas County and Sierra County); Bunker Hill Ridge 2011 Comment
  JEPS87748  Melica fugax Lowell Ahart 1994-6-15 7330 Plumas about 1 air mi w Little Grass Valley Reservoir (near intersection of Lumpkin Ridge Road and the road to Tamarack Flat, on w side of a logging road) 1767 Comment
  JEPS87770  Polygonum bistortoides Lowell Ahart 1994-6-12 7321 Plumas w side of Faggs Mine Rd near Cedar Flat (sw of a small branch of Willow Creek, about 1 1/4 air mi s of Bucks Lake) 1706 Comment
  JEPS87813  Polystichum scopulinum Lowell Ahart 1994-7-22 7492 Plumas nw side of large twin rocks on ne side of Mt, Etna (s of Pacific Crest Trail) 1981 Comment
  JEPS94444  Ericameria nauseosa var. speciosa Lowell Ahart 1997-8-19 7872 Plumas about 14 air mi ne of Feather Falls (on e side of Lumpkin Ridge Road, about 7 1/2 mi e of Camp 18); Lumpkin Ridge Road 1402 Comment
  JEPS95078  Eriogonum vimineum Lowell Ahart 1997-9-11 7905 Plumas about 1/2 mi s of Mosquito Creek (about 4 1/2 air mi ne of Beldon, on the e edge of Caribou Road, on w side of the North Fork of the Feather River); North Fork of the Feather River 792 Comment
  JEPS95369  Carex rossii Lowell Ahart 1994-7-7 7470 Plumas SW side of Pacific Crest Trail, S of a poor dirt road, E of the weather station, 1/2 air mile W of Pilot Peak, about 3/4 mi E of Quincy--La Porte Road 1981 Comment
  JEPS95397  Lonicera conjugialis Lowell Ahart 1994-7-20 7481 Plumas N of the Pacific Crest Trail, N side of Bunker Hill Ridge, about 1/2 mi NW of Mount Etna 1981 Comment
  JEPS95429  Cordylanthus tenuis subsp. tenuis Lowell Ahart 1994-7-28 7529 Plumas SW of Bucks Lake (NE of Frenchman Hill) 1706 Comment
  JEPS97346  Viola pinetorum subsp. pinetorum Lowell Ahart 1995-8-7 7608 Plumas 1/4 air mi S of Pilot Peak; Pacific Crest Trail, Bunker Hill Ridge 2011 Comment
Read comments
Jun 15 2007
  RSA0035817  Juncus howellii Lowell A. Ahart 2008-9-10 15374 Plumas South edge of Onion Valley, about 3/4 mile northwest of Pilot Peak, about 1/2 mile east of the Quincy La Porte Road, about 9 1/2 miles (air) northeast of La Porte. 1916 Comment
  RSA0106684  Muhlenbergia richardsonis Lowell Ahart 2014-8-26 19793 Plumas Little Grass Valley Reservoir, about 200 yards southwest of the parking lot to the Pacific Crest Trail, about 1/4 mile southwest of the bridge across the South Fork of the Feather River, about 4 miles (air) north of La Porte. 1534 Comment
  RSA0118634  Polygonum douglasii Lowell A. Ahart 2014-8-24 19744 Plumas Center of the South Fork of the Feather River, Little Grass Valley Reservoir, about 200 yards southwest of the parking lot to the Pacific Crest Trail, about 1/4 mile southwest of the bridge across the South Fork of the Feather River, about 4 miles (air), north of La Porte. 1533 Comment
  RSA699792  Poa pratensis L. Ahart, John Dittes, Josephine Guardino, Robert A. Schlising 2004-7-3 11165 Plumas On north side of a forest road, About 0.25 mi north of Taylor rock, About 1 mi (air) SW of Grizzly Peak, About 5 mi (air) south of Taylorsville, About 8 mi (air) NE of Quincy 2140 Comment
  RSA699794  Agastache urticifolia L. Ahart, John Dittes, Josephine Guardino, Robert A. Schlising 2004-7-3 11161 Plumas About 1/4 mile north of Taylor Rock, about 1 mile (air) southwest of Grizzly Peak, about 5 miles (air) south of Taylorsville, about 8 miles (air) northeast of Quincy. 2140 Comment
  RSA715679  Cupressus bakeri L. Ahart, Josephine Guardino, John Dittes 2005-8-10 12325 Plumas On the east side of Forest Road 27N34, about 1/2 mile south of Wilcox Valley, about 3/4 mile northeast of Eisenheimer Peak. 2022 Comment
  RSA715683  Thinopyrum intermedium L. Ahart, Josephine Guardino 2005-8-10 12310 Plumas along a poor logging road, northeast of a small branch of Lights Creek, east side of Forest Road 27N54, about 5.5 miles (air) northwest of the Boulder Creek Work Center at Antelope Lake. 1822 Comment
  RSA715685  Monardella odoratissima subsp. pallida L. Ahart, Josephine Guardino 2005-8-9 12298 Plumas on the east side of Fant Creek, on the west side of the dirt road, about 100 yards northwest of the cabin (destroyed) and corral, north of Forest Service Road 27N09, about 6 miles (air) northwest of the Boulder Creek Work Center at Antelope Lake 1598 Comment
  RSA715708  Agrostis stolonifera L. Ahart, Josephine Guardino 2005-8-9 12298 Plumas In meadow, about 100 yards southwest of the cabin (destroyed) and corral, north of the Boulder Creek Work Center at Antelope Lake. 1598 Comment
  RSA718442  Trifolium cyathiferum L. Ahart 2006-7-9 12934 Plumas about 20 yards south of the paved basalt road, about 3 3/4 miles (air) nw of Tamarack Flat, about 5 3/4 miles (air) nw of Little Grass Valley Reservoir 1662 Comment
  RSA718444  Navarretia intertexta L. Ahart 2006-7-9 12927 Plumas About 100 yards north of the paved basalt road, about 3 3/4 miles (air) northwest of Tamarack Flat, about 5 3/4 miles (air) northwest of Little Grass Valley Reservoir. 1679 Comment
  RSA718938  Epilobium ciliatum subsp. glandulosum L. Ahart 2006-10-8 13396 Plumas West side of Chips Creek, just south of the bridge on Highway 70, about 1.25 miles southwest of Belden. 715 Comment
  RSA718941  Mimulus guttatus L. Ahart 2006-10-8 13395 Plumas West side of Chips Creek, just south of the bridge on Highway 70, about 1.25 miles southwest of Belden. 715 Comment
  RSA726286  Agoseris heterophylla L. Ahart, John Dittes 2007-6-16 14099 Plumas East side of the small stream, on the south side of County Road 111 (Beckwourth Gensee Road), 50 yards east of Forest Road 24N08, Red Clover Valley, about 2 miles (air) north of the north end of Lake Davis. 1648 Comment
  RSA726388  Trifolium wormskioldii L. Ahart, Josephine Guardino 2007-7-21 14355 Plumas Near a spring, open dry flat, south of the dirt road, about 1/2 mile (air) south of Bagley Pass, about 400 yards north of Lake Davis. 1788 Comment
  RSA726410  Nemophila parviflora var. austiniae L. Ahart, John Dittes, Josephine Guardino 2007-6-8 13998 Plumas About a mile (air) north of the north end of Lake Davis. 1966 Comment
  RSA755327  Carex lemmonii L. Ahart 2009-7-13 16032 Plumas On the side of Forest Service Road 27N98, headwater of Clear Creek, about 2.0 air miles north of Butt Valley Reservoir Dam, about 3 air miles southwest of Lake Almanor Reservoir dam. 1477 Comment
  RSA755447  Epilobium ciliatum subsp. glandulosum L. Ahart, John Dittes, Josephine Guardino 2009-7-22 16148 Plumas Forest Service Road 27N92K, east side of Long Valley, about 3.5 air miles west-southwest of Greenville, about 5.2 air mile southeast of Lake Almanor Dam. 1607 Comment
  RSA755467  Lupinus lepidus var. sellulus L. Ahart, John Dittes, Josephine Guardino 2009-7-22 16136 Plumas Forest Service Road 27N92K, east side of Long Valley, about 3.5 air miles west-southwest of Greenville, about 5.2 air mile southeast of Lake Almanor Dam. 1607 Comment
  RSA794958  Aster oregonensis L. Ahart, John Dittes 2009-7-27 16183 Plumas About 20 yards north of the poor dirt road, about 10 yards west of a small pond. Headwaters of Grizzly Gulch, 2.1 air miles northeast of Butt Valley Reservoir Dam. 1480 Comment
  RSA795662  Monardella sheltonii L. Ahart 2012-7-1 18261 Plumas East side of the dirt road to the large pipe, about 0.25 miles east of Caribou Road, about 3.5 air miles northeast of Belden. 808 Comment
  RSA795664  Juncus dudleyi L. Ahart 2012-7-1 18256 Plumas West edge of Caribou Road, about 20 yards south of the stream, about 4 air miles northeast of Belden. 807 Comment
  RSA795721  Ageratina occidentalis L. Ahart, John Dittes, Josephine Guardino 2009-7-29 16215 Plumas Along a drainage from a snow lake, about 100 yards northeast of the snow lake, on the south side of Forest Road 26N67F3, 1.2 air miles northeast of Rush Creek Hill, 2.6 air miles ESE of Caribou Powerhouse. 1678 Comment
  SBBG119898  Kelloggia galioides L. Ahart 2003-9-7 10560 Plumas ca. 50 yards SE of the Pacific Crest Trail on Bunker Hill Ridge, ca. 1 mi (air) SE of Pilot Peak, ca. 9 mi (air) NE of La Porte Comment
  SBBG121213  Epilobium densiflorum L. Ahart 2007-7-20 14352 Plumas strand of Lake Davis ca. 100 yards SE of Long Point, NE side of Lake Davis 1763 Comment
  SEINET228558 Image available Torreyochloa pauciflora Lowell Ahart 1981-9-6 3120 Plumas Crescent Mills about 0.5 miles south of; and 0.5 miles southwest of the intersection of Hughway 89 and Arlington Road 1200 Comment
  SEINET256574  Alopecurus aequalis Lowell Ahart 1985-7-3 5098 Plumas Ca 4.25 mi NE of La Porte; Little Grass Valley Reservoir where S Fork of Feather River joins lake 1585 Comment
  SEINET4292058 Image available Carex subfusca L. Ahart, Guardino, J 2005-1 12304 Plumas Along a poor logging road, northeast of a small branch of Lights Creek, east side of Forest Road 27N54, about 5-1/2 mi (air) northwest of the Boulder Creek Work Center at Antelopeake. Comment
  SEINET7564600 Image available Carex lenticularis var. impressa Lowell Ahart 2003-7-18 10433 Plumas On the east side of the road, about 3/4 mile west of Lumpkin Ridge Road, about 1 mile southeast of Tamarack Flat, about 2 miles (air) northwest of Little Grass Valley Reservoir dam, about 5 miles (air) northwest of La Porte. 1753 Comment
  UC1609240  Erigeron lassenianus var. deficiens Lowell Ahart 1993-9-24 7267 Plumas about 3 mi nw Pilot Peak (w side of Cleghorn Bar Road); Monitor Flat 1828 Comment
  UCSB64025  Chenopodium simplex Ahart, Lowell 1974-7-30 Plumas About 100 yards west of Bunker Hill Creek, about 1/2 mile north of the Bunker Hill Mine, about 10 miles north-east of La Porte 1828 Comment
  CAS-BOT-BC343263  Madia gracilis Lowell Ahart 1981-7-21 2967 Plumas Sutter Buttes Area. Along Cleghorn Bar Road, about 2 miles west of Pilot Peak 1900 Comment
  CAS-BOT-BC397890  Aquilegia formosa Lowell Ahart 1982-7-30 3737 Plumas Along the edge of the dirt road and near a small stream, 2 miles north of the Hardquartz Mine, about 5 miles south of Bucks Lake. 1700 Comment
  CAS-BOT-BC402606  Dicentra uniflora Lowell Ahart 1983-6-28 4169 Plumas On the high banks of the South Fork of the Feather River and a little south-west of the Feather Fork Mine, on the west side of the river, about 1 1/2 miles north-east of Little Grass Valley Reservoir, about 5 1/2 miles north of La Porte 1750 Comment
  CAS-BOT-BC459559  Geum macrophyllum Lowell Ahart 1976-7-7 s.n. Plumas At camp on Cold Water Creek; Sierra Nevada 1524 Comment
  CAS-BOT-BC472812  Allium obtusum Lowell Ahart 1983-8-17 4328 Plumas South of Onion Valley, near the Quincy La Porte Road, west of Pilot Pk., north-east of La Porte 2000 Comment
  CAS-BOT-BC525737  Triteleia ixioides subsp. scabra Lowell Ahart 1983-8-17 4318 Plumas West of Pilot Pk., near Onion Valley, north-east of La Porte, near the Quincy La Porte Road 609 Comment
  CAS-BOT-BC65501  Adiantum aleuticum Lowell Ahart 1979-8-4 s.n. Plumas About 1 mile west of Pilot Pk. 1800 Comment
  CAS-BOT-BC72506  Polystichum scopulinum Lowell Ahart 1980-9-17 2648 Plumas 1/2 mile west of Fowler Pk. 1800 Comment
  CAS-BOT-BC9822  Delphinium nudicaule Lowell Ahart 1984-6-21 4720 Plumas 1 mile north of Turkeytown, about 2 miles northwest of Blue Nose Mountain, about 15 mi. NE of La Porte 2000 Comment
  SEINET10466799  Eleocharis acicularis Lowell Ahart, Peter Ahart 1985-9-26 Ahart 5185 Plumas Below the high water line of Little Grass Valley Reservoir, where the South Fork of the Feather River flows into the lake, about 4 1/4 miles north-east of La Porte. Comment
  SEINET10471992  Allium platycaule Lowell Ahart, Peter Ahart 1983-7-20 Ahart 4200 Plumas Ca. 1/4 mi e of Feather Fork Mine, ca. 5.5 mi n of La Porte. Red Fir Forest; 1800 m. 1800 Comment
  SEINET10472681  Triteleia ixioides subsp. scabra Lowell Ahart, Peter Ahart 1983-8-17 Ahart 4318 Plumas Near Onion Valley, west of Pilot Peak, near the Quincy-LaPorte Rd, northeast of La Porte. Red Fir Forest; 2000 m. 2000 Comment
  SEINET10474557  Cirsium foliosum Lowell Ahart, Peter Ahart 1983-8-17 Ahart 4324 Plumas Near Onion Valley, west of Pilot Peak, near the Quincy-LaPorte Rd, northeast of La Porte. Red Fir Forest; 2000 m. 2000 Comment
  SEINET10479813  Rumex triangulivalvis var. oreolapathum Lowell Ahart 1985-7-11 Ahart 5121 Plumas Below the high water line of Little Grass Valley Reservoir, where the South Fork of the Feather River flows into the lake, about 4 1/4 miles north-east of La Porte. Comment
  SEINET10507141  Alopecurus aequalis Lowell Ahart 1985-7-3 Ahart 5098 Plumas About 4 1/4 miles north-east of La Porte. Comment
  SEINET10535960  Ranunculus alismifolius var. hartwegii Lowell Ahart, Peter Ahart 1983-8-17 Ahart 4338 Plumas Near Onion Valley, west of Pilot Peak, near the Quincy-LaPorte Rd, northeast of La Porte. Red Fir Forest; 2000 m. 2000 Comment
  SEINET10929032  Claytonia lanceolata Lowell Ahart, Peter Ahart 1983-7-20 Ahart 4198 Plumas Ca. 1/4 mi e of Feather Fork Mine, ca. 5.5 mi n of La Porte. Red Fir Forest; 1800 m. 1800 Comment
  SEINET13710067  Plagiobothrys mollis Lowell William Ahart, Lowell William Ahart 2001-1 9211 Plumas Lake Almanor, 3/4 Mi. NE of Chester (T28N, R7E, sec 4, NE 1/4) 4500 Ft 1372 Comment
  SEINET13710320  Limosella aquatica Lowell William Ahart, Lowell William Ahart 2001-1 9228 Plumas Little Last Chance Creek at Frenchman Lake (T24N, R16E, sec 8, SE 1/4) 5580 Ft. 1701 Comment
  CHSC10608  Eriogonum inflatum Lowell Ahart 1962-4-17 San Bernardino Near Twentynine Palms. 914 Comment
  CHSC83957  Amsinckia tessellata var. tessellata Emma M. Ahart 2003-3-19 San Diego Flat area in Palm Canyon, about 100 yards south of the road, south of Road S3, about 12 miles southwest of Borrego Springs, in Anza-Borrego Desert State Park. 914 Comment
  CHSC83973  Salvia carduacea Emma M. Ahart 2003-3-22 San Diego Box Canyon, near Highway S2, in Anza-Borrego Desert State Park. 1219 Comment
  CHSC84047  Centaurea melitensis Lowell Ahart; John Dittes 2003-5-22 10201 Shasta On the side of a water ditch, east of the poor dirt road, about 150 yards south of the Coleman Canal, about 1 1/8 miles west of the barn, 4 miles (air) west-southwest of Darah Springs State Fish Hatchery, about 11 miles (air) east-northeast of Cottonwood. 259 Comment
  CHSC84067  Vulpia microstachys var. ciliata Lowell Ahart; John Dittes 2003-5-12 10170 Shasta About 350 yards south of the barn, about 1/4 mile south of the Coleman Canal, 2.8 miles (air) west-southwest of Darah Springs State Fish Hatchery, about 12 miles (air) east-northeast of Cottonwood. 265 Comment
  CHSC84071  Lepidium chalepense Lowell Ahart; John Dittes 2003-5-22 10194 Shasta Meadow south the wash, west of the poor dirt road, about 150 yards south of the Coleman Canal, about 1 1/8 miles west of the barn, 4 miles (air) west-southwest of Darah Springs State Fish Hatchery, about 11 miles (air) east-northeast of Cottonwood. 259 Comment
  CHSC84099  Pogogyne zizyphoroides Lowell Ahart; John Dittes 2003-5-12 10157 Shasta In a vernal pool, about 250 yards south of the barn, about 1/4 mile south of the Coleman Canal, 2.8 miles (air) west-southwest of Darah Springs State Fish Hatchery, about 12 miles (air) east-northeast of Cottonwood. 265 Comment
  CHSC84100  Plagiobothrys austiniae Lowell Ahart; John Dittes 2003-5-12 10139 Shasta Pasture field, about 350 yards south of the barn, about 1/4 mile south of the Coleman Canal, 2.8 miles (air) west-southwest of Darah Springs State Fish Hatchery, about 12 miles (air) east-northeast of Cottonwood. 265 Comment
  CHSC99243  Crepis occidentalis subsp. occidentalis Lowell Ahart; John Dittes 2008-6-19 14851 -A Shasta About 140 yards east of the Pit River, about 10 yards west Cassel-Fall River Road, about 50 yards south of the intersection of Cassel-Fall River Road and Dee-Knoch Road, about 1/4 mile southeast of Highway 299 in Fall River Mills. 993 Comment
  CHSC99265  Prunus virginiana var. demissa Lowell Ahart; John Dittes 2008-6-19 14844 Shasta About 5 yards east of the Pit River, about 150 yards southwest of the intersection of Cassel-Fall River Road and Dee-Knoch Road, about 1/4 mile southeast of Highway 299 in Fall River Mills. 993 Comment
  CHSC99770  Lepidium chalepense Lowell Ahart; John Dittes 2008-6-19 14842 Shasta On dry gray soil, about 5 yards east of the Pit River, south and under the bridge, about 150 yards northwest of the intersection of Cassel-Fall River Road and Dee-Knoch Road, about 1/4 mile southeast of Highway 299 in Fall River Mills. 993 Comment
  JEPS104004  Lilaea scilloides Lowell Ahart 2003-5-12 10172 Shasta In a vernal pool, ca 250 yd south of the barn, ca 1/4 mi south of the Coleman Canal, 2.8 mi (air) wsw of Darah Springs State Fish Hatchery, ca 12 mi (air) ene of Cottonwood. 265 Comment
  JEPS104261  Juncus leiospermus var. leiospermus Lowell Ahart 2003-5-12 10165 Shasta In a vernal pool, ca 250 yd south of the barn, ca 1/4 mi south of the Coleman Canal, 2.8 mi (air) wsw of Darah Springs State Fish Hatchery, ca 12 mi (air) ene of Cottonwood. 265 Comment
  JEPS104359  Centaurea melitensis Lowell Ahart 2003-5-22 10201 Shasta On the side of a water ditch, e of the poor dirt road, ca 150 yd south of the Coleman Canal, ca 1 1/8 mi w of the barn, 4 mi (air) wsw of Darah Springs State Fish Hatchery, ca 11 mi (air) ene of Cottonwood. 259 Comment
  JEPS104366  Juncus capitatus Lowell Ahart 2003-5-12 10163 Shasta Pasture field, ca 350 yd south of the barn, ca 1/4 mi south of the Coleman Canal, 2.8 mi (air) wsw of Darah Springs State Fish Hatchery, ca 12 mi (air) ene of Cottonwood. 265 Comment
  JEPS114478  Crepis occidentalis subsp. occidentalis Lowell Ahart, John Dittes 2008-6-19 14851 Shasta About 150 yards east of the Pit River, about 10 yards west Cassel-Fall River Road, about 50 yards south of the intersection of Cassel-Fall River Road and Dee-Knoch Road, about 1/4 mile southeast of Highway 299 in Fall River Mills 993 Comment
  JEPS120922  Bromus hordeaceus Lowell Ahart, John Dittes, Todd Sloat 2013-6-9 18783 Shasta Along the fence on the W side of the north-south road, on the W side of McArthur Diversion Canal, 2.1 air miles S of Rat Farm Boat Launch, 1.2 air miles N of McArthur, Fall River Valley, McArthur Swamp. Comment
  RSA695397  Deschampsia danthonioides L. Ahart, John Dittes 2003-5-12 10167 Shasta About 250 yards south of barn, about 1/4 mile south of the Coleman Canal, 2.8 miles (air) west-southwest of Darah Springs State Fish hatchery, about 12 miles (air) east-northeast of Cottonwood. 265 Comment
  SEINET3450758  Vulpia microstachys var. pauciflora Lowell Ahart, John Dittes 2003-5-12 10169 Shasta Cottonwood, Cottonwood, about 12 air miles east /northeast, about 2.8 air miles south/southwest of the Darah Springs State Fish Hatchery, about 0.25 miles south of the Coleman Canal, about 250 yards south of the barn 260 Comment
  SEINET3450947  Juncus howellii Lowell Ahart, John Dittes 2003-5-22 10211 Shasta Cottonwood, Cottonwood, about 12 air miles east/northeast, 2.8 air miles west/southwestof Darah Springs State Fish Hatchery, about 1/8 miles south of the Coleman Canal, about 250 yards northeast of the barn, north side of poor dirt road 250 Comment
  CAS-BOT-BC206586  Elymus glaucus subsp. glaucus Lowell Ahart 1977-8-2 1505 Sierra Found on the north side of Mt. Fillmore, about 12 miles north-east of La Porte. 2000 Comment
  CAS-BOT-BC240382  Linnaea borealis subsp. longiflora Lowell Ahart 1970-7-5 s.n. Sierra At Poverty 1066 Comment
  CHSC108103  Arnica mollis Lowell Ahart 2011-9-23 17702 Sierra Forest floor, about 80 yards north of Pass Creek, about 320 yards south of Hennas Pass Road, west of French Meadow, east of Forest Road 70, about 3 miles (air) northwest of Webber Lake. 2016 Comment
  CHSC108469  Madia glomerata Lowell Ahart 2011-9-23 17711 Sierra On a gravel bar on the south side of Pass Creek, south of Hennas Pass Road, west of French Meadow, east of Forest Road 70, about 3 miles (air) northwest of Webber Lake. 2015 Comment
  CHSC108471  Juncus nevadensis var. nevadensis Lowell Ahart 2011-9-23 17717 Sierra Along a small wash, on the north side of the dirt road in French Meadow, about 100 yards south of Hennas Pass Road, north part of French Meadow, about 3 miles (air) northwest of Webber Lake. 2040 Comment
  CHSC109882  Alopecurus aequalis var. aequalis Lowell Ahart 2012-9-18 18451 Sierra Bottom of Poverty Hill Hydraulic Mine, about 2 miles (air) southwest of Poverty Hill, about 4 1/2 miles (air) south of La Porte. 1388 Comment
  CHSC11045  Ranunculus aquatilis var. subrigidus Lowell Ahart 1967-7-27 Sierra Near Webber Lake. 2133 Comment
  CHSC11329  Erythronium purpurascens Lowell Ahart 1972-4-28 Sierra At Poverty. 1524 Comment
  CHSC115183  Polystichum munitum Lowell Ahart 2015-5-9 20154 Sierra Road or trail cut, on the north side of the Canyon Creek Trail, about 50 yards southeast of the foot bridge across Boyce Ravine, trail on the north side of the North Fork of the Yuba River, about one mile west of Highway 49, about 2 miles west of Indian Valley. 716 Comment
  CHSC115257  Isoetes nuttallii Lowell Ahart 2015-5-9 20153 Sierra Cliff, on the north side of the Canyon Creek trail, trail on the north side of the North Fork of the Yuba River, about 300 yards west of Highway 49, about one mile west of Indian Valley. 692 Comment
  CHSC24431  Ericameria bloomeri Lowell Ahart 1976-10-1 Sierra Along the edge of the road to Alleghany, 3 mi s of Camptonville. 914 Comment
  CHSC32039  Allium campanulatum L. Ahart 1975-6-28 824 Sierra Ca. 2 mi e of Gibsonville. 1981 Comment
  CHSC37219  Heterotheca villosa var. minor L. Ahart 1982-7-28 3702 Sierra Ca. 1/4 mi n of Pacific Mine, ca. 5 mi e of LaPorte. 1700 Comment
  CHSC37223  Erigeron miser L. Ahart 1982-7-28 3699 Sierra Cliffs, ca. 1/4 mi n of Pacific Mine, ca. 5 mi e of LaPorte. 1700 Comment
  CHSC43329  Hypericum anagalloides Lowell Ahart 1977-7-31 1509 Sierra On wet soil in a bog, about 2 miles north of Scales. 1341 Comment
  CHSC44855  Chaenactis douglasii var. douglasii Lowell Ahart 1977-8-2 1527 Sierra Ridge on the west side of Mount Fillmore, near the summit, about 12 air miles north-east of La Porte. 2194 Comment
  CHSC54580  Polemonium californicum Lowell Ahart 1991-7-22 6694 Sierra In French Meadow, about 1/4 mile south of Henness Pass Road, about 3 miles north-west of Webber Lake. 2133 Comment
  CHSC54582  Polygonum douglasii subsp. douglasii Lowell Ahart 1991-7-22 6678 Sierra In French Meadow, about 1/4 mile south of Henness Pass Road, about 3 miles north-west of Webber Lake. 2133 Comment
  CHSC54584  Phacelia humilis Lowell Ahart 1991-7-22 6695 Sierra In French Meadow, about 1/4 mile south of Henness Pass Road, about 3 miles morth-west of Webber Lake. 2133 Comment
  CHSC59010  Carex angustata Lowell Ahart 1992-7-17 6790 Sierra A wet boggy meadow, east of the logging road, about 2 (air) miles east of Quartz Point, about 6 (air) miles south-east of Downieville. 1706 Comment
  CHSC61898  Platanthera sparsiflora Lowell Ahart 1993-9-10 7191 Sierra On the north side of Mount Fillmore, about 1 mile south-west of the dirt road from Gibsonville to Johnsville. 2133 Comment
  CHSC61903  Poa cusickii subsp. epilis Lowell Ahart 1993-9-10 7216 Sierra On the north side of a ridge, on the north side of Mount Fillmore, about 1 1/2 miles south of the dirt road from Gibsonville to Johnsville. 2316 Comment
  CHSC61911  Pellaea bridgesii Lowell Ahart 1993-9-24 7255 Sierra West of the poor dirt road that ends at a stream and east of the stream on the north side of Mount Fillmore, about 3/4 mile south of the dirt road from Gibsonville to Johnsville. 2133 Comment
  CHSC66597  Acmispon nevadensis var. nevadensis Lowell Ahart 1996-7-25 7687 Sierra In and along the dirt road, old Henness Pass Road, French Meadow, about 2 miles west of Webber Lake. 1950 Comment
  CHSC75805  Ribes inerme var. inerme Lowell Ahart; Vernon H. Oswald 1999-7-26 8128 Sierra On the west side of Independence road, just south of the Little Truckee River, south of Fibreboard Road, about 7 miles (air) east of Webber Lake. 1889 Comment
  CHSC78241  Githopsis specularioides Lowell Ahart 2000-6-15 8475 Sierra About 200 feet west and below Mountain House Road, about 1 1/8 miles south of the intersection of Mountain House Road and Henness Pass Road, about 1 mile (air) northwest of Forest, about 2 miles (air) northwest of Alleghany. 1463 Comment
  CHSC78277  Carex luzulina Lowell Ahart 2000-7-13 8585 Sierra In a small boggy meadow, on a upper west branch of Black Jack Ravine, on the west side of Forest Highway 98, Harris Meadow, about 7 miles (air) northeast of Alleghany. 1615 Comment
  CHSC80969  Rosa woodsii subsp. ultramontana Lowell Ahart 2001-8-10 9095 Sierra On the north side of the Truckee River, about 100 feet south of the dam, diversion dam across the Little Truckee River (water flows to Sierra Valley), about 100 yards south of Fiberboard Road (Forest Road 18), about 1/8 mile north of Henness Pass Road, about 5 miles (air) east of Webber Lake. 1920 Comment
  CHSC81049  Ranunculus flammula var. ovalis Lowell Ahart 2001-8-10 9107 Sierra About 200 yards west of the dam, diversion dam across the Little Truckee River (water flows to Sierra Valley), about 150 yards south of Fiberboard Road (Forest Road 18), about 1/8 mile north of Henness Pass Road, about 5 miles (air) east of Webber Lake. 1920 Comment
  CHSC81342  Oxypolis occidentalis Lowell Ahart 2001-9-28 9295 Sierra On the east side of the large meadow, east of the old homestead, about 1 1/4 miles north of Scales, about 2 miles (air) southeast of Poverty Hill (town). 1524 Comment
  CHSC92037  Polygonum douglasii subsp. douglasii Lowell Ahart 2005-8-30 12361 Sierra East of Pass Creek, about 100 yards southeast of the falls on Pass Creek, about 1/4 mile south of French Meadow, about 2 1/2 miles west of Webber Lake. 2073 Comment
  CHSC92040  Juncus ensifolius Lowell Ahart 2005-8-30 12349 Sierra On the south side of Pass Creek, about 1/4 mile south of French Meadow, about 2 1/2 miles west of Webber Lake. 2064 Comment
  CHSC94139  Achnatherum lemmonii Lowell Ahart 2006-6-28 12883 Sierra On the south slope and near the top of the serpentine area, about 3/4 mile (air) east of Lake Delahunty, about 2 miles (air) northeast of Gibsonville. 1903 Comment
  CHSC94223  Senecio integerrimus var. major Lowell Ahart 2006-6-28 12866 Sierra About 3/4 mile (air) east of Lake Delahunty, about 2 miles (air) northeast of Gibsonville. 1784 Comment
  HSC100745  Salix breweri Lowell Ahart 2010-9-15 17172 Sierra N edge of first pond, S side of road and W of the cabin at the spring, 2 3/4 (air) mi. N of Yuba Pass on Hwy. 49, 4 (air) mi. E of Haskell Peak. 2135 Comment
  HSC96969  Poa compressa L. Ahart 2006-6-21 12801 Sierra W side of Foote Rd., near Blue Ravine, about 3 mi. SW of Alleghany. 1054 Comment
  JEPS102327  Chenopodium berlandieri Lowell Ahart 2001-8-10 9074 Sierra about 1 1/4 mi NW of Stampede Reservoir Dam (Stampede Reservoir, about 1 mi SW of Henness Pass Road) 1810 Comment
  JEPS102454  Agrostis oregonensis Lowell Ahart 2001-8-10 9086 Sierra About 100 feet SE of the dam, diversion dam across the Little Truckee River (water flows to Sierra Valley), about 100 yards south of Fiberboard Road (Forest Road 18), about 1/8 mile north of Henness Pass Road, about 5 miles (air) east of Webber Lake. 1920 Comment
  JEPS102481  Lindernia dubia var. anagallidea Lowell Ahart 2001-9-28 9300 Sierra Around the drying ponds on the bottom of the Poverty Hill Hydraulic gold mine, north of Poverty Hill (town), about 4 miles (air) south of La Porte. 1524 Comment
  JEPS102677  Carex nebrascensis Lowell Ahart 2001-8-10 9069 Sierra Road gutter, on the east side of Hobart Mills Road, about 100 feet west of the power pole, about 1 mile (air) south of Stampede Reservoir. 1798 Comment
  JEPS107585  Polygonum douglasii subsp. douglasii Lowell Ahart 2005-8-30 12361 Sierra East of Pass Creek, about 100 yards southeast of the falls on Pass Creek, about 1/4 mile south of French Meadow, about 2 1/2 miles west of Webber Lake 2073 Comment
  JEPS108759  Streptanthus tortuosus var. suffrutescens Lowell Ahart 2006-6-28 12895 Sierra On the northwest side of the dirt road (road goes from Gibsonville to Johnsville), about 200 yards northeast of the camp and road (road goes to Howland Flat), less than 1/2 mile (air) northeast of Lake Delahunty, about 1 3/4 miles (air) northeast of Gibso 1901 Comment
  JEPS108830  Arenaria kingii var. glabrescens Lowell Ahart 2006-6-28 12875 Sierra Northwest slope of the serpentine area, about 3/4 mile (air) east of Lake Delahunty, about 2 miles (air) northeast of Gibsonville 1835 Comment
  JEPS108831  Arabis constancei Lowell Ahart 2006-6-28 12874 Sierra Northwest slope of the serpentine area, about 3/4 mile (air) east of Lake Delahunty, about 2 miles (air) northeast of Gibsonville 1835 Comment
  JEPS110046  Calystegia occidentalis subsp. occidentalis Lowell Ahart 2006-6-21 12796 Sierra Climbing on shrubs, on the W side of the Foote Road, about 4 miles (by road) SW of Alleghany. 849 Comment
  JEPS110289  Festuca occidentalis Lowell Ahart 2006-6-21 12815 Sierra On the south side of the Foote Road, about 2.7 miles (by road) southwest of Alleghany 1103 Comment
  JEPS118414  Agrostis exarata Lowell Ahart 2011-9-23 17712 Sierra Growing on a gravel bar on the south side of Pass Creek, south of Hennas Pass Road, west of French Meadow, east of Forest Road 70, about 3 miles (air) northwest of Webber Lake 2015 Comment
  JEPS118435  Carex lenticularis var. impressa Lowell Ahart 2011-9-23 17706 Sierra Growing around small cobbles on the south side of Pass Creek, south of Hennas Pass Road, west of French Meadow, east of Forest Road 70, about 3 miles (air) northwest of Webber Lake 2015 Comment
  JEPS118492  Phacelia racemosa Lowell Ahart 2011-9-23 17701 Sierra About 80 yards north of Pass Creek, about 320 yards south of Hennas Pass Road, west of French Meadow, east of Forest Road 70, about 3 miles (air) northwest of Webber Lake.siz 2016 Comment
  JEPS123988  Torilis arvensis subsp. purpurea Lowell Ahart 2015-5-9 20157 Sierra About 300 yards west of Highway 49, about one mile west of Indian Valley. Comment
  JEPS123992  Mimulus kelloggii Lowell Ahart 2015-5-9 20164 Sierra About 100 yards west of Highway 49, about one mile west of Indian Valley. Comment
  JEPS124074  Selaginella wallacei Lowell Ahart 2015-5-9 20158 Sierra About 300 yards west of Highway 49, about one mile west of Indian Valley. Comment
  JEPS87476  Agrostis pallens Lowell Ahart 1993-9-24 7245 A Sierra ca. 3/4 mi s. of dirt road from Gibsonville to Johnsonville (w. side red rock outcrop, e. of small meadow, w. side poor dirt rd. that ends at stream, n. side Mount Fillmore); Mount Fillmore 2133 Comment
  JEPS87627  Astragalus bolanderi Lowell Ahart 1994-7-1 7447 Sierra at intersection of a logging road to Harris Meadow and Henness Pass Road about 2 mi sw Middlewaters (about 7 1/2 mi (air) ne of Alleghany); sw of Middlewaters, ne of Alleghany 1950 Comment
  JEPS94938  Delphinium glaucum Lowell Ahart 1996-8-6 7704 Sierra about 5 air mi s of Yuba Pass (along a branch of Long Valley Creek, e side of Yuba Pass-Webber Lake Road (Forest Rte 12)); branch of Long Valley Creek 2225 Comment
  JEPS95548  Phacelia procera Lowell Ahart 1994-7-1 7428 Sierra 11 air miles NE of Alleghany (S of the larger pond, N side of Henness Pass Road, at Keystone Gap, E of Keystone Mountain, 1 1/2 mi NE of Middlewaters) 1889 Comment
  JEPS98673  Vaccinium uliginosum subsp. occidentale Lowell Ahart 2000-7-13 8590 Sierra On the edges of a small boggy meadow, on a upper west branch of Black Jack Ravine, on the east side of Forest Highway 98, Harris Meadow, about 7 miles (air) northeast of Alleghany. 1615 Comment
  RSA0106558  Selaginella wallacei Lowell Ahart 2015-5-9 20158 Sierra North side of the Canyon Creek Trail, trail on the north side of the North Fork of the Yuba River, about 300 yards west of Highway 49, about one mile west of Indian Valley. 693 Comment
  RSA718396  Senecio integerrimus var. major L. Ahart 2006-6-28 12866 Sierra About 3/4 mile (air) east of Lake Delahunty, about 2 miles (air) northeast of Gibsonville. 1784 Comment
  RSA794703  Prunus emarginata L. Ahart 2010-9-15 17170 Sierra Open areas around the cabin at the spring, about 2.75 air miles north of Yuba Pass on Highway 49, about 4 air miles east of Haskell Peak. 2135 Comment
  SEINET13710438  Eleocharis acicularis var. acicularis Lowell William Ahart, Lowell William Ahart 2000-1 8562 Sierra 1.5 Mi. SE of Pilot Peak, 7.5 Mi. NE of La Porte (T22N, R10E, sec 15, SW 1/4) 6000 Ft. 1829 Comment
  UC1586498  Castilleja tenuis Lowell Ahart 1991-7-22 6680 Sierra about 3 mi nw Webber Lake (about 0.1 mi s of Henness Pass Road, in French Meadow); French Meadow 2133 Comment
  UC1609021  Crepis pleurocarpa Lowell Ahart 1993-9-10 7218 Sierra about 1 1/2 mi s dirt road from Gibsonville to Johnsville (top of ridge on w side of mt); Mount Fillmore 2316 Comment
  UC1609403  Pellaea bridgesii Lowell Ahart 1993-9-24 7255 Sierra e of stream on n side of Mt Fillmore (w of the poor dirt rd that ends at a stream, about 3/4 mi s of dirt rd from Gibsonville to Johnsville) 2133 Comment
  CAS-BOT-BC312186  Eurybia radulina Lowell Ahart 1976-8-10 s.n. Sierra 7 miles west of Downieville, Sierra Nevada 1371 Comment
  CAS-BOT-BC391498  Aconitum columbianum subsp. columbianum Lowell Ahart 1964-7-24 s.n. Sierra Eugene Ahart Camp near Webber Lake 2133 Comment
  SBBG125480  Carex abrupta L. Ahart 2010-9-15 17191 Sierra W side of poor rd, ca. 15 yrds N of first pond, ca. 20 yards NW of the cabin, ca. 50 yards SW of middle pond, at the spring, ca. 2.75 mi N of Yuba Pass on Hwy 49, ca. 4 mi E of Haskell Peak 2134 Comment
  SEINET10451994  Lotus nevadensis Lowell Ahart, Peter Ahart 1983-10-11 Ahart 4466 Sierra Along edge of dirt road to Ahart Sheep Camp, ca. 1 mi n of Milton Reservoir, 3 mi nw of Jackson Meadow Reservoir. Yellow Pine Forest; 1800 m. 1800 Comment
  SEINET10496946  Allophyllum integrifolium Lowell Ahart, Peter Ahart 1983-10-27 Ahart 4474 Sierra Near a dirt road that is ca. 2 mi se of Jackson Meadow Reservoir, ca. 1 mi s of Pass Creek, near Jackson Meadow Reservoir. Red Fir Forest; 2200 m. 2200 Comment
  SEINET10570210  Mimulus breweri Lowell Ahart, Peter Ahart 1983-10-27 Ahart 4489 Sierra Near a dirt road that is ca. 2 mi se of Jackson Meadow Reservoir, ca. 1 mi s of Pass Creek, near Jackson Meadow Reservoir. Red Fir Forest; 2200 m. 2200 Comment
  SEINET10902873  Cryptantha torreyana Lowell Ahart, Peter Ahart 1983-10-27 Ahart 4486 Sierra Near a dirt road that is ca. 2 mi se of Jackson Meadow Reservoir, ca. 1 mi s of Pass Creek, near Jackson Meadow Reservoir. Red Fir Forest; 2200 m. 2200 Comment
  SEINET12163991  Lotus nevadensis L. Ahart, Ahart, P. 1983-1 4466 Sierra to Ahart Sheep Camp, ca 1miN of Milton Reservoir, 3miNW of Jackson Meadow Reservoir 1800 Comment
  SEINET3014527  Isoetes howellii Lowell Ahart 1997-8-28 7874 Sierra Sierra County, CA West of the Pacific Crest Trail and Bunker Hill Ridge, about 1 mi W of Bunker Hill Mine, about 1 mi SE of Pilot Peak Comment
  CDA34722  Berula erecta L. Ahart, John Dittes 2010-7-3 16934 Siskiyou Along the west edge of the Shasta River, about 30 yards northwest of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada. Comment
  CDA42478  Equisetum laevigatum L. Ahart, John Dittes 2006-6-1 12107 Siskiyou 30 yards east of the Shasta River, near the south fence, 100 yards south of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. Comment
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Oct 5 2019
  CHSC106100  Solanum dulcamara Lowell Ahart; John Dittes 2010-7-30 16939 Siskiyou Along the south edge of the Shasta River, about 100 yards northwest of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada. 716 Comment
  CHSC106101  Sparganium emersum subsp. emersum Lowell Ahart; John Dittes 2010-7-30 1936 Siskiyou Along the west edge of the Shasta River, about 30 yards northwest of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada. 716 Comment
  CHSC106272  Stachys pilosa Lowell Ahart; John Dittes 2010-7-30 16948 Siskiyou In shallow water or on wet soil, on the south edge of the Shasta River, about 80 yards east of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada. 716 Comment
  CHSC91357  Juncus balticus Lowell Ahart; John Dittes 2005-6-9 12043 Siskiyou Meadow area along a small drainage, on the west side of a poor rock fence, about 280 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 774 Comment
  CHSC91373  Camissonia contorta Lowell Ahart; John Dittes 2005-6-10 12088 Siskiyou Rocky hillside, north of the rock fence, about 200 yards southeast of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
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Jul 20 2020
  CHSC91375  Carex praegracilis Lowell Ahart; John Dittes 2005-6-10 12108 Siskiyou Slope, 30 yards east of the Shasta River, about 60 yards south of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  CHSC91389  Schoenoplectus americanus Lowell Ahart; John Dittes 2005-6-10 12103 Siskiyou Steep slope, 30 yards east of the Shasta River, near the south fence, 100 yards south of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  HSC97163  Stipa thurberiana L. Ahart 2005-6-9 12027 Siskiyou 3/5 mi. S of Hwy. 99/97 cutoff, 2 1/2 mi. ESE of Grenada 775 Comment
  JEPS107388  Leymus cinereus Lowell Ahart, John Dittes 2005-6-10 12109 Siskiyou Steep slope, 30 yards east of the Shasta River, near the south fence, 100 yards south of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 Comment
  JEPS107392  Potentilla millefolia Lowell Ahart, John Dittes 2005-6-10 12095 Siskiyou Steep springy slope, 30 yards east of the Shasta River, near the south fence, 100 yards south of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 Comment
  JEPS107650  Plantago eriopoda Lowell Ahart, John Dittes 2005-6-10 12104 Siskiyou Steep springy sloper, 30 yards east of the Shasta River, near the south fence, 100 yards south of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 Comment
  JEPS107960  Apera interrupta Lowell Ahart, John Dittes 2005-6-9 12007 Siskiyou Pasture field, on the east side of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada 774 Comment
  JEPS107961  Solanum dulcamara Lowell Ahart, John Dittes 2005-6-10 12078 Siskiyou In water on the north side of the Shasta River, about 60 yards northwest of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 Comment
  JEPS117464  Pyrrocoma lanceolata var. lanceolata Lowell Ahart, John Dittes 2010-7-30 16969 Siskiyou Riparian terraces near spring, Shasta Big Springs Ranch, 2.6 miles (air) northwest of Big Springs Lake, 3.9 miles (air) southeast of Grenada, 6.3 miles (air) northwest of Dwinnel Dam 778 Comment
  RSA715781  Juncus bufonius var. bufonius L. Ahart, John Dittes 2005-6-9 12055 Siskiyou About 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 775 Comment
  RSA715953  Veronica peregrina subsp. xalapensis L. Ahart, John Dittes 2005-6-10 12059 Siskiyou Near a poor dirt road, about 80 yards north of the pump house along the Shasta River, about 1.9 miles (air) south of Hwy 99/97 Cutoff, about 6 miles (air) ESE of Grenada. 777 Comment
  RSA716052  Lotus humistratus L. Ahart, John Dittes 2005-6-9 12014 Siskiyou On the east side of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2.5 miles (air) ESE of Grenada. 775 Comment
  RSA716054  Vulpia myuros var. hirsuta L. Ahart, John Dittes 2005-6-10 12069 Siskiyou South of a poor dirt road, about 90 yards northwest of the pump house along the Shasta River, about 1.9 miles (air) south of Hwy 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 777 Comment
  SBBG126112  Potamogeton berchtoldii L. Ahart, J. Dittes 2010-7-30 16963 Siskiyou swift deep water of the Shasta River, ca. 30 yards NW of E Louie Rd Bridge, Shasta Big Springs Ranch, 1.6 mi (air) SW of Big Springs Lake, 4.6 mi (air) NW of Dwinnel Dam, 5.7 mi (air) SE of Grenada 716 Comment
  JEPS121154  Festuca bromoides Lowell Ahart, John Dittes, Josephine Guardino, Dr. Marge Anthony 2013-4-25 18600 Sonoma 0.7 air miles E of Pacific Ocean, 0.8 air miles W of Gualala River. Comment
  CAS-BOT-BC146133  Avena barbata Lowell Ahart 1982-3-6 2343 Sutter Sierra Nevada. Old Man Mountain, southwest of the Dean Cabin, Dean Ranch, Sutter Buttes. 500 Comment
  CAS-BOT-BC161691  Bromus rubens Lowell Ahart 1981-4-13 2762 Sutter Sierra Nevada. Sutter Buttes. On a hill ca. 1/8 mile west of Dean Cabin. 106 Comment
  CAS-BOT-BC199972  Vulpia microstachys var. ciliata Lowell Ahart 1982-5-30 3475 Sutter On the sides of a small wash, ca. 0.25 mi. W of the Myers home, Myers Ranch, Sutter Buttes - Sierra Nevada 50 Comment
  CAS-BOT-BC208559  Echinochloa crus-galli Lowell Ahart 1981-9-10 3135 Sutter South side of South Butte, Sutter Buttes 450 Comment
  CAS-BOT-BC238598  Sambucus nigra subsp. caerulea Lowell Ahart 1982-6-19 3609 Sutter South of the Myers home, Myers Ranch, Sutter Buttes 50 Comment
  CAS-BOT-BC310177  Hesperevax caulescens Lowell Ahart 1986-5-4 5256 Sutter Near the first gate to the Dean Ranch, about 1/2 mile north of the intersection of Mallott Road and Alf Road, about 2 miles north-east of Sutter, Sutter Buttes 30 Comment
  CAS-BOT-BC341723  Lagophylla ramosissima Lowell Ahart 1982-5-30 3489 Sutter About 1/4 mile west of the Myers home, Myers Ranch, Sutter Buttes 50 Comment
  CAS-BOT-BC352760  Lasthenia fremontii Lowell Ahart 1984-4-19 4553 Sutter Along West Butte Road, about 1/8 mile N of the Sacramento Outing Club, Sutter Buttes 35 Comment
  CAS-BOT-BC355506  Lasthenia glaberrima Lowell Ahart 1984-4-19 4554 Sutter Along West Butte Road, about 1/8 mile north of the Sacramento Outing Club, Sutter Buttes. 35 Comment
  CAS-BOT-BC71484  Pellaea mucronata Lowell Ahart 1977-4-10 s.n. Sutter South Butte, Sutter Buttes 500 Comment
  CAS-BOT-BC91536  Clematis lasiantha Lowell Ahart 1982-6-19 3601 Sutter Myers Ranch, Sutter Buttes. South of the south fence line, about 0.75 mile south of the Myers home. 50 Comment
  CDA3093  Chenopodium strictum var. glaucophyllum L. Ahart 2000-8-29 8673 Sutter On the north side of Pass Road, near the base of South Butte, Sutter Buttes, about 4 1/2 miles northwest of Sutter. Comment
  CHSC33750  Plectritis congesta L. Ahart 1981-4-6 2738 Sutter On ridge near the outcropping which is near the old homestead on s side of South Butte, Sutter Buttes. 350 Comment
  CHSC34119  Persicaria punctata L. Ahart 1981-9-10 3133 Sutter Along the edge of the small stream, near the old homestead, s side of South Butte, Sutter Buttes. 450 Comment
  CHSC34123  Xanthium strumarium L. Ahart 1981-9-10 3141 Sutter Along edge of a wash, on s side of South Butte, Sutter Buttes. 100 Comment
  CHSC37050  Aristida ternipes var. hamulosa L. Ahart 1982-10-11 3884 Sutter Along edges of Pass Rd, ca. 1/2 mi e of Gas Compression Station, Sutter Buttes. 50 Comment
  CHSC37052  Amaranthus retroflexus L. Ahart 1982-10-11 3886 Sutter Along the edge of Pass Rd., s of South Butte, Sutter Buttes. 50 Comment
  CHSC37054  Heliotropium europaeum L. Ahart 1982-10-11 3880 Sutter Bank of wash, below the bridge on Pass Rd, a little e of Gas Compression Station, Sutter Buttes. 50 Comment
  CHSC37237  Lolium temulentum L. Ahart 1982-5-30 3474 Sutter Wash, ca. 1/4 mi w of Myers home, Myers Ranch, Sutter Buttes. 50 Comment
  CHSC37240  Lolium perenne L. Ahart 1982-5-30 3457 Sutter Along cow trails, near the fence, ca. 1/8 mi w of Myers home, Myers Ranch, Sutter Buttes. 50 Comment
  CHSC37242  Epilobium torreyi L. Ahart 1982-5-30 3456 Sutter Along edge of cow trails, near the fence, ca. 1/8 mi w of Myers home, Myers Ranch, Sutter Buttes. 50 Comment
  CHSC37244  Perideridia bolanderi subsp. involucrata L. Ahart 1982-6-19 3588 Sutter Ca. 1/4 mi w of Myers home, Myers Ranch, Sutter Buttes. 50 Comment
  CHSC37300  Ranunculus muricatus L. Ahart 1982-5-30 3483 Sutter Bottom of a wash, ca. 1/4 mi w of Myers home, Myers Ranch, Sutter Buttes. 50 Comment
  CHSC37302  Polypogon maritimus L. Ahart 1982-5-30 3473 Sutter Wash, ca. 1/4 mi w of Myers home, Myers Ranch, Sutter Buttes. 50 Comment
  CHSC37304  Perideridia bolanderi subsp. involucrata L. Ahart 1982-5-30 3472 Sutter Ca. 1/4 mi w of Myers home, Myers Ranch, Sutter Buttes. 50 Comment
  CHSC39374  Abutilon theophrasti L. Ahart 1983-8-27 4364 Sutter A little south of the Myers home, Myers Ranch, Sutter Buttes, west of Marysville. 50 Comment
  CHSC40368  Equisetum laevigatum Lowell Ahart 1985-5-5 4914 Sutter About 1/2 mile south-east of the Dean Cabin, Dean Ranch, about 3 1/2 miles north-west of Sutter, Sutter Buttes. 200 Comment
  CHSC41393  Chenopodium album Lowell Ahart 1986-5-24 5282 Sutter Between the 2 and 3 gate to ther Dean Ranch, about 2 1/2 miles north-east of Sutter, Sutter Buttes 60 Comment
  CHSC41395  Microseris douglasii Lowell Ahart 1986-5-4 5266 Sutter Along the road at the Dean Cabin, Dean Ranch, about 5 miles north-west of Sutter, Sutter Buttes. 228 Comment
  CHSC41426  Melica torreyana Lowell Ahart 1986-5-26 5316 Sutter Along the banks of a stream, about 1/8 mile south of the Myers Ranch, about 1 and 1/8 mile south of the Myers home, about 3 miles south-west of Pennington, Sutter Buttes. 45 Comment
  CHSC41439  Isoetes howellii Lowell Ahart 1986-5-4 5249 Sutter Near the first gate to the Dean Ranch, about 1/2 mile north of the intersection of Mallott Road and Alf Road, about 2 miles north-east of Sutter, Sutter Buttes. 30 Comment
  CHSC43313  Phacelia distans Lowell Ahart 1977-4-10 1280 Sutter Sutter Buttes. On dry rocky soil, around large rocks, on the south side of the South Butte. 457 Comment
  CHSC43336  Euphorbia spathulata Lowell Ahart 1977-4-7 1266 Sutter On the Myers Ranch, Sutter Buttes. 45 Comment
  CHSC44507  Trifolium albopurpureum var. olivaceum Lowell Ahart 1977-4-7 1272 Sutter Myers Ranch, Sutter Buttes. 45 Comment
  CHSC45959  Dodecatheon clevelandii subsp. patulum Lowell Ahart 1984-3-24 4510 Sutter Sutter Buttes, Myers Ranch, about 1/4 mile west of the Myers home. 45 Comment
  CHSC46133  Clarkia rhomboidea Lowell Ahart 1984-5-21 4639 Sutter About 60 feet nroth of where the road forks to go to the radio towers, on the South Butte, Sutter Buttes. 609 Comment
  CHSC46517  Phyla nodiflora var. rosea Lowell Ahart 1981-7-3 2908 Sutter Along the edges of Pass Road, a little west of Kellogg Road Sutter Buttes. 91 Comment
  CHSC46924  Pseudognaphalium luteoalbum Lowell Ahart 1984-10-22 4819 Sutter Stream on the south side of the South Butte, Sutter Buttes. 137 Comment
  CHSC46951  Lessingia virgata Lowell Ahart 1984-9-22 4797 Sutter By a large boulder, north-east of the old gas well, on the west side of the South Butte, Sutter Buttes. 182 Comment
  CHSC46963  Psilocarphus brevissimus var. brevissimus Lowell Ahart 1984-4-19 4548 Sutter Along West Butte Road, about 1/8 mile north of the Sacramento Outing Club, Sutter Buttes. 30 Comment
  CHSC47381  Sinapis alba Lowell Ahart 1984-4-19 4583 Sutter Along the edge of West Butte Road, about 300 feet north of the intersection of Pass Road, Sutter Buttes. 30 Comment
  CHSC47395  Callitriche marginata Lowell Ahart 1983-5-14 3993 Sutter Along the West Butte Road, about 1/8 mile north of the Sacramento Outing Club, Sutter Buttes. 30 Comment
  CHSC47490  Collinsia heterophylla Lowell Ahart 1981-5-18 2821 Sutter Near the top of the South Butte, Sutter Buttes. 609 Comment
  CHSC47638  Scribneria bolanderi Lowell Ahart 1982-4-23 3339 Sutter Bulldozed road, about 1/4 mile west of the Myers home, Myers Ranch, Sutter Buttes. 45 Comment
  CHSC47655  Pseudognaphalium californicum Lowell Ahart 1980-6-21 2427 Sutter Just a little south of the old homestead, on the south side of the South Butte, Sutter Buttes. 304 Comment
  CHSC47661  Psilocarphus oregonus Lowell Ahart 1983-5-14 3999 Sutter Along West Butte Road, about 1/8 mile north of the Sacramento Outing Club, Sutter Buttes. 30 Comment
  CHSC51231  Salvia columbariae Lowell Ahart 1977-4-5 1260 Sutter On the west side of the South Butte, Sutter Buttes. 457 Comment
  CHSC82234  Planodes virginica Lowell Ahart 2002-3-28 9454 Sutter In a prune orchard, about 50 feet southeast of the intersection of North Butte Road and West Butte Road, Sutter Buttes. 24 Comment
  CHSC87337  Phacelia egena Lowell Ahart 2004-5-2 10834 A Sutter On a mountainside, on the northwest side of the South Butte, Sutter Buttes, about 5 miles (air) northwest of Sutter. 453 Comment
  CHSC87921  Adiantum jordanii Lowell Ahart 2004-5-29 10978 Sutter On a steep (cliffs) slope, about 30 yards north of the fence, where the fence ends, on the northwest side of the South Butte, Sutter Buttes, about 5 miles (air) northwest of Sutter. 537 Comment
  HSC100763  Clarkia unguiculata Lowell Ahart 2004-5-29 10964 Sutter ~300 yd. S of fence on NW side of the South Butte, Sutter Buttes, 5 (air) mi. NW of Sutter. 305 Comment
  JEPS102681  Carex densa Lowell Ahart 2001-5-18 8743 Sutter Small ditch, south of a deep drainage ditch, on the east side of Pennington Road, 6 miles west of Live Oak. 22 Comment
  JEPS103496  Amsinckia intermedia Lowell Ahart 2002-3-20 9425 Sutter On the S side of Pass Road, W of the corral, Sutter Buttes, ca 4 miles NW of Sutter. 76 Comment
  JEPS106286  Achillea millefolium Lowell Ahart 2004-5-2 10826 Sutter On a ridge, northwest of the old homestead at the large rock outcrop, on the west side of the South Butte, Sutter Buttes, about 5 miles (air) northwest of Sutter 410 Comment
  JEPS107744  Phalaris paradoxa Lowell Ahart, Jack Lindsay 2005-5-31 11840 Sutter In a large vernal pool, pasture, on the north side of the dirt private road, about 1/2 mile north of Malott Road, about 2 miles (air) northeast of Sutter 19 Comment
  JEPS107902  Navarretia pubescens Lowell Ahart, Jack Lindsay 2005-5-31 11832 Sutter North of a large vernal pool, pasture, on the north side of the dirt private road, about 1/2 mile north of Malott Road, about 2 miles (air) northeast of Sutter 19 Comment
  JEPS107953  Taeniatherum caput-medusae Lowell Ahart, Jack Lindsay 2005-5-31 11841 Sutter In a large vernal pool, pasture, on the north side of the dirt private road, about 1/2 mile north of Malott Road, about 2 miles (air) northeast of Sutter 19 Comment
  JEPS124162  Eriochloa acuminata var. acuminata Lowell Ahart 2015-11-4 20611 Sutter About 50 yards east of George Washington Blvd., about 1 1/8 mile south of the intersection of Highway 20 and George Washington Blvd., Yuba City. Comment
  POM360317  Hemizonia luzulifolia L. Ahart 1984-10-22 4815 Sutter On the S side of South Butte, Sutter Buttes, west of Marysville. 150 Comment
  RSA325017  Prunus cerasifera L. Ahart 1984-3-10 4504 Sutter Dean Ranch, Sutter Buttes, West of Marysville. Foothill woodland 300 Comment
  UCD99775  Persicaria punctata L. Ahart 1984-10-22 4817 Sutter On the south side of South Butte, Sutter Buttes. West of Marysville. 150 Comment
  CAS-BOT-BC112780  Eleocharis macrostachya Lowell Ahart 1981-7-3 2891 Sutter South side of South Butte, Sutter Buttes 100 Comment
  CAS-BOT-BC114214  Cyperus strigosus Lowell Ahart 1981-9-10 3136 Sutter South side of South Butte. Sutter Buttes. 450 Comment
  CAS-BOT-BC20523  Carex densa Lowell Ahart 1986-5-24 5294 Sutter About 0.5 mile south of Dean Cabin, Dean Ranch, about 3.25 miles NW of Sutter, Sutter Buttes. 243 Comment
  CAS-BOT-BC288922  Conyza canadensis Lowell Ahart 1983-8-27 4362 Sutter A little S of the Myers home, Myers Ranch, Sutter Buttes 50 Comment
  CAS-BOT-BC340664  Lactuca serriola Lowell Ahart 1982-9-9 3782 Sutter About 1/2 mile south of the Myers home, Myers Ranch, Sutter Buttes 50 Comment
  CAS-BOT-BC342051  Lessingia virgata Lowell Ahart 1981-9-10 3131 Sutter South side of South Butte, Sutter Buttes 350 Comment
  CAS-BOT-BC374573  Sonchus oleraceus Lowell Ahart 1982-6-20 3632 Sutter South-east of the Dean Cabin, Dean Ranch, Sutter Buttes 350 Comment
  CAS-BOT-BC393471  Silene gallica Lowell Ahart 1977-4-10 s.n. Sutter South Butte, Sutter Buttes. West of Myers home 500 Comment
  CAS-BOT-BC418943  Persicaria lapathifolia Lowell Ahart 1983-8-27 4355 Sutter A little south of the Myers home, Myers Ranch, Sutter Buttes 50 Comment
  CAS-BOT-BC457593  Aphanes occidentalis Lowell Ahart 1982-4-23 3344 Sutter West of Myers home, Myers Ranch, Sutter Buttes 50 Comment
  SEINET10449696  Parvisedum pumilum Lowell Ahart 1983-9-4 Ahart 4373 Sutter Dean Ranch, Sutter Buttes, west of Marysville. Foothill Woodland; 250 m. 250 Comment
  SEINET10452032  Lupinus bicolor subsp. tridentatus Lowell Ahart 1984-4-19 Ahart 4560 Sutter Along West Butte Road, ca. 1.8 mile N of Sacramento Outing Club, Sutter Buttes, west of Marysville. Valley Grassland; 35 m. 35 Comment
  SEINET10452383  Amorpha californica Lowell Ahart 1983-9-4 Ahart 4391 Sutter Ca. 1/2 mi NW of the Dean Cabin, Dean Ranch, Sutter Buttes, W of Marysville. Foothill Woodland; 300 m. 300 Comment
  SEINET10452703  Trifolium albopurpureum var. olivaceum Lowell Ahart 1983-5-4 Ahart 3962 Sutter Along Pass Rd, ca. 2 mi e of Kellogg Rd, Sutter Buttes e of Gridley. Valley Grassland; 50 m. West of Marysville. 50 Comment
  SEINET10453163  Clarkia rhomboidea Lowell Ahart 1984-5-21 Ahart 4639 Sutter On South Butte, Sutter Buttes, west of Marysville; Foothill Woodland; 675 m. 675 Comment
  SEINET10465987  Lemna minuscula Lowell Ahart 1984-8-3 Ahart 4776 Sutter Under the bridge across Pass Road, a little east of the Gas Compression Station, about 7 miles west of Sutter. Comment
  SEINET10467196  Cyperus strigosus Lowell Ahart 1984-10-22 Ahart 4822 Sutter On the south side of South Butte, Sutter Buttes, west of Marysville. Valley Grassland and Foothill Woodland; 150 to 500 m elev. 150 Comment
  SEINET10472614  Brodiaea elegans Lowell Ahart 1984-5-21 Ahart 4626 Sutter At the old homestead on the south side of South Butte, Sutter Buttes, west of Marysville; Foothill Woodland; 400 m. 400 Comment
  SEINET10473884  Lasthenia californica Lowell Ahart 1984-3-24 Ahart 4515 Sutter Myers Ranch, Sutter Buttes, west of Marysville. Foothill Woodland; 50 m. 50 Comment
  SEINET10475148  Gnaphalium californicum Lowell Ahart 1985-5-20 Ahart 5018 Sutter South Butte, Sutter Buttes, about 12 miles W of Marysville, Ca. On the south side. Comment
  SEINET10499279  Stachys stricta Lowell Ahart 1983-8-4 Ahart 4265 Sutter T16N R1E se sec 26. At the old homestead, s side of South Butte, Sutter Buttes. Foothill Woodland; 450 m. 450 Comment
  SEINET10536991  Urtica dioica subsp. holosericea Lowell Ahart 1984-10-22 Ahart 4820 Sutter On the south side of South Butte, Sutter Buttes, west of Marysville. Valley Grassland and Foothill Woodland; 150 to 500 m elev. 150 Comment
  SEINET10537399  Dysphania multifida Lowell Ahart 1983-9-4 Ahart 4399 Sutter Dean Ranch, Sutter Buttes, west of Marysville. Foothill Woodland; 250 m. 250 Comment
  SEINET10837530  Ceanothus cuneatus Lowell Ahart 1984-3-10 Ahart 4500 Sutter Dean Ranch, Sutter Buttes, west of Marysville. Foothill Woodland; 300 m. 300 Comment
  SEINET10840004  Plectritis macrocera Lowell Ahart 1983-9-4 Ahart 4370 Sutter Dean Ranch, Sutter Buttes, west of Marysville. Foothill Woodland; 250 m. 250 Comment
  SEINET10871298  Prunus avium Lowell Ahart 1984-3-10 Ahart 4504 Sutter Dean Ranch, Sutter Buttes, west of Marysville. Foothill Woodland; 300 m. 300 Comment
  SEINET10871667  Chenopodium ambrosioides Lowell Ahart 1983-9-19 Ahart 4450 Sutter Along edge of North Butte Rd, ca. 1/8 mi from the rd to the Missile Site, Sutter Buttes; west of Marysville. Valley Grassland; 35 m. 35 Comment
  SEINET10871999  Psilocarphus oregonus Lowell Ahart 1983-5-14 Ahart 3999 Sutter Along West Butte Rd, ca. 1/8 mi n of the Sacramento Outing Club, Sutter Buttes, w of Marysville. Valley Grassland; 35 m. 35 Comment
  SEINET10940041  Lupinus bicolor subsp. tridentatus Lowell Ahart 1984-5-21 Ahart 4620 Sutter At the old homestead on the south side of South Butte, Sutter Buttes, west of Marysville; Foothill Woodland; 400 m. 400 Comment
  SEINET11934447  Amaranthus albus L. Ahart, Dean, M.; Sands, P. 1985-1 5211 Sutter Dean Ranch, Sutter Buttes. About 12 mi W of Marysville. About 1/2 mi NW of the Dean Cabin 290 Comment
  CDA1934  Crypsis alopecuroides L. Ahart 2002-11-5 10019 Tehama About 12 miles (air) northwest of Orland. East of where Burris Creek runs into Black Butte Lake, about 15 feet below the high water line of the lake. Comment
  CDA2344  Polypogon monspeliensis L. Ahart, J. Dittes 2003-6-11 10278 Tehama On the west side of Battle Creek, about 1 mile north of Manton Road, about 1 1/2 miles (air) northeast of the Colman Power House, about 5 miles (air) west-southwest of Darah Springs State Fish Hatchery, about 10 miles (air) east-northeast of Cottonwood. Comment
  CDA2786  Polygonum hydropiper L. Ahart, J. Dittes 2003-9-17 10589 Tehama On the south side of Deer Creek, about 400 yards east of Highway 99, about 5 miles (air) southeast of Los Molinos. Comment
  CDA3946  Rubus armeniacus L. Ahart, J. Dittes 2003-6-11 10256 Tehama On the west side of Battle Creek, about 1 mile north of Manton Road, about 1 1/2 miles (air) northeast of the Colman Power House, about 5 miles (air) west-southwest of Darah Springs State Fish Hatchery, about 10 miles (air) east-northeast of Cottonwood. Comment
  CDA40367  Nemophila heterophylla L. Ahart 2006-5-5 12572 Tehama Along the Nomalaki Trail (Thomes Gorge Trail), about 100 yards west of China Gulch, about 1/4 mile south of Bowers Creek, about 3/4 mile northwest of Forest Road 23N69 (Mud Flat Road), about 6 1/2 miles (air) southwest of Paskenta. Comment
  CDA42752  Pellaea mucronata var. californica L. Ahart 2004-4-29 10811 Tehama About 1/8 mile southeast of an unnamed lake, along the Nomalaki Trail, about 3/4 mile by trail northwest of Dead Rabbit Lake, about 1 1/2 miles northwest of Bowers Creek, about 2 1/4 miles northwest of Forest Road 23N69 (Mud Flat Road), about 8 miles (air) southwest of Paskenta Comment
  CHSC102652  Juncus tenuis Lowell Ahart; John Dittes, Josephine Guardino 2009-8-27 16340 Tehama West side of pond on the east side of Forest Service Road 29N25A, Childs Meadows, about 2600 ft south of the intersection of Highway 36 (89) and Forest Service Road 29N25A, 2.3 miles (air) northeast of the town of Mill Creek, 9.1 miles (air) south of Lassen Peak. In area between Sec 23 SE1/4 and Sec 24 SW1/4. 1493 Comment
  CHSC102695  Plagiobothrys hispidulus Lowell Ahart; John Dittes, Josephine Guardino 2009-8-27 16310 Tehama West side of pond, on the east side of Forest Service Road 29N25A, Childs Meadows, about 2600 feet south of the intersection of Highway 36 (89) and Forest Service Road 29N25A, 2.3 miles (air) northeast of the town of Mill Creek, 9.1 miles (air) south of Lassen Peak. Area between SE 1/4 Section 23 and SW 1/4 Section 24. 1493 Comment
  CHSC102808  Trichostema oblongum Lowell Ahart; John Dittes, Josephine Guardino 2009-8-27 16317 Tehama On the east side of Forest Service Road 29N25A, Childs Meadows, about 2,600 feet south of the intersection of Highway 36 (89) and Forest Service Road 29N25A, 2.3 miles (air) northeast of the town of Mill Creek, 9.1 miles (air) south of Lassen Peak. 1493 Comment
  CHSC105946  Lagophylla ramosissima subsp. ramosissima Lowell Ahart; John Dittes 2010-7-17 16855 Tehama Near brush piles, about 80 yards south of the pond, Soap Creek Ranch, about 4.8 miles (air) southeast of Manton, about 2 miles (air) north of Highway 36. 819 Comment
  CHSC107367  Downingia bella Lowell Ahart; John Dittes 2011-6-9 17449 Tehama Rio De Los Molinos Land Grant. Bottom of a large vernal pool, sand dune area, about 100 yards south of the fence, 1.6 miles (air) east of Highway 99, 2.4 miles (air) northeast of Vina. 80 Comment
  CHSC111137  Eleocharis macrostachya Lowell Ahart 2012-6-2 18150 Tehama In a small pond or vernal pool, on the east side of Long Road, about 6.7 miles northeast of Dales and State Highway 36, northeast of Red Bluff. 326 Comment
  CHSC111157  Isoetes howellii Lowell Ahart 2012-6-2 18151 Tehama In a small pond or vernal pool, on the east side of Long Road, about 6.7 miles northeast of Dales and State Highway 36, northeast of Red Bluff. 326 Comment
  CHSC112587  Crypsis alopecuroides Lowell Ahart 2013-9-17 19040 Tehama On the bottom of Burris Creek, strand of Black Butte Reservoir, about 1 1/2 miles southwest of the Dam, about 12 miles (air) northwest of Orland. 135 Comment
  CHSC112593  Cyperus fuscus Lowell Ahart 2013-9-17 19047 Tehama High area below the high water line of Black Butte Reservoir, about 1 1/2 miles southwest of the Dam, about 12 miles (air) northwest of Orland. 135 Comment
  CHSC113004  Solanum rostratum Lowell Ahart 2013-8-2 18982 Tehama Gravel bar on the south side of Burris Creek, strand of Black Butte Reservoir, about 1 1/2 miles southwest of the Dam, about 12 miles (air) northwest of Orland. 135 Comment
  CHSC113253  Plantago lanceolata Lowell Ahart; John Dittes 2014-5-18 19517 Tehama East bank of a large canal, on the north side of the bridge, about 1 1/2 miles east of the end of Lyon Cattle Road, about 3 1/2 miles (air) northeast of Los Molinos. 99 Comment
  CHSC113260  Plagiobothrys scriptus Lowell Ahart; John Dittes 2014-5-16 19474 Tehama Along the sides of a small drainage, about 200 yards southwest of the lone oak tree, about 1/2 mile east of the end of Lyon Cattle Road, about 3 miles (air) northeast of Los Molinos. 99 Comment
  CHSC113261  Spergularia rubra Lowell Ahart; John Dittes 2014-5-16 19478 Tehama Along the sides of the poor dirt road, about 200 yards southwest of the lone oak tree, about 1/2 mile east of the end of Lyon Cattle Road, about 3 miles (air) northeast of Los Molinos. 99 Comment
  CHSC113279  Avena barbata Lowell Ahart; John Dittes 2014-5-17 19503 Tehama On the dirt and rock piles, north of the poor dirt road, about 50 yards west of the diversion dam on Mill Creek, about 5 miles (air) northeast of Los Molinos. 124 Comment
  CHSC113339  Avena fatua Lowell Ahart; John Dittes 2014-5-17 19503 A Tehama On the dirt and rock piles, north of the poor dirt road, about 50 yards west of the diversion dam on Mill Creek, about 5 miles (air) northeast of Los Molinos. 124 Comment
  CHSC115530  Oreostemma alpigenum var. andersonii Lowell Ahart; John Dittes 2015-8-5 20435 Tehama East side of Childs Meadow, 150 yards west of Highway 36, 0.69 air-miles northwest of intersection of State Highway 36 and Wilson Lake Road (County Road 769), 1.2 air-miles east of Doe Mt., 9.77 air-miles south of Lassen Peak. Mountain Meadow. 1498 Comment
  CHSC115550  Cryptantha torreyana var. torreyana Lowell Ahart; John Dittes 2015-8-5 20456 Tehama East Side of Childs Meadow, 150 yards west of Highway 36, 0.69 air-miles northwest of intersection of State Highway 36 and Wilson Lake Road (County Road 769), 1.2 air-miles east of Doe Mt., 9.77 air-miles south of Lassen Peak. 1498 Comment
  CHSC115584  Scirpus microcarpus Lowell Ahart; John Dittes 2015-8-6 20508 Tehama Along the sides of the small stream, about 100 yards east of the spring, east of the camping area, west side of Childs Meadow, 0.67 air-miles west of intersection of State Highway 36 and Wilson Lake Road (County Road 769), 1.21 air-miles southeast east of Doe Mt., 10.41 air-miles south of Lassen Peak. 1498 Comment
  CHSC115599  Rhododendron columbianum Lowell Ahart; John Dittes 2015-8-6 20520 Tehama On the south side of the small stream, about 100 yards east of the spring, east of the camping area, west side of Childs Meadow, 0.67 air-miles west of intersection of State Highway 36 and Wilson Lake Road (County Road 769), 1.21 air-miles southeast east of Doe Mt., 10.41 air-miles south of Lassen Peak. 1498 Comment
  CHSC115793  Carex feta Lowell Ahart; John Dittes 2015-8-5 20477 Tehama East side of Childs Meadow, 150 yards west of Highway 36, 0.69 air-miles northwest of intersection of State Highway 36 and Wilson Lake Road (County Road 769), 1.2 air-miles east of Doe Mt., 9.77 air-miles south of Lassen Peak. 1498 Comment
  CHSC115822  Goodyera oblongifolia Lowell Ahart; John Dittes 2015-8-5 20482 Tehama East side of Child's Meadow, 10 yards west of Highway 36, 0.69 air-miles northwest intersection of State Highway 36 and Wilson Lake Road (County Road 769), 1.2 air-miles east of Doe Mt., 9.77 air-miles south of Lassen Peak. 1498 Comment
  CHSC116227  Bergia texana Lowell Ahart; John Dittes 2015-6-22 20265 Tehama About 1/4 mile north of Lassen Road, about 1.7 miles northeast of the intersection of Lassen Road and State Highway 99-E, about 4 miles (air) east of Vina, about 7 miles (air) southeast of Los Molinos. 74 Comment
  CHSC116674  Polystichum imbricans subsp. imbricans Lowell Ahart; John Dittes, Joseephine Guardino 2016-2-11 20698 Tehama Neer the fish ladder on Deer Creek, about 2 miles by trail to Highway 32. 883 Comment
  CHSC116686  Viola purpurea subsp. purpurea Lowell Ahart; John Dittes 2016-4-29 20813 Tehama On the south side of the trail, about 300 yards south of the fish ladder on Deer Creek, about 0.8 mile (air) northeast of USFS Road 27N08 Bridge over Deer Creek, about 2 1/8 miles by trail to Highway 32. 935 Comment
  CHSC116714  Claytonia parviflora Lowell Ahart; John Dittes 2016-4-29 20807 Tehama On the northwest side of the trail, about 150 yards south of the fish ladder on Deer Creek, about 0.8 mile (air) northeast of USFS Road 27N08 Bridge over Deer Creek, about 2 miles by trail to Highway 32. 935 Comment
  CHSC117166  Mimulus torreyi Lowell Ahart; John Dittes 2016-6-22 21028 Tehama Steep mountain side, west of the trail, about 1/2 mile southwest of the fish ladder on Deer Creek, about 0.6 mile (air) northeast of USFS Road 27N08 Bridge over Deer Creek, about 2 1/2 miles by trail to Highway 32. Comment
  CHSC117173  Toxicodendron diversilobum Lowell Ahart; John Dittes 2016-6-22 21033 Tehama About 10 yards south of the fish ladder on Deer Creek, about 0.9 mile (air) northeast of USFS Road 27N08 Bridge over Deer Creek, about 2 miles by trail to Highway 32. 911 Comment
  CHSC117620  Dysphania botrys Lowell Ahart; John Dittes, Josephine Guardino 2016-9-21 21367 Tehama On the east side of Highway 89, a little south of Bluff Falls, about 1 mile south of Lassen Volcanic National Park, about 2 1/2 miles (air) north of Morgan Mountain. 1963 Comment
  CHSC117621  Eriogonum nudum var. pubiflorum Lowell Ahart; John Dittes, Josephine Guardino 2016-9-21 21366 Tehama On the east side of Highway 89, a little south of Bluff Falls, about 1 mile south of Lassen Volcanic National Park, about 2 1/2 miles (air) north of Morgan Mountain. 1963 Comment
  CHSC117640  Myriophyllum aquaticum Lowell Ahart; John Dittes 2016-8-25 21316 Tehama In a small pond, southeast of the parking area, along a dirt road, about 200 yards west of the Sacramento River, Anderson River Park, 0.7 mile (air) upstream from Sillwater Creek Confluence, 1.8 miles (air) northeast of Balls Ferry Road exit from Interstate 5 in Anderson. Undesignated section of San Buenaventura Land Grant. 117 Comment
  CHSC117641  Echinochloa colona Lowell Ahart; John Dittes 2016-8-25 21284 Tehama About the west edge of the Sacramento River, Anderson River Park, 0.7 mile (air) upstream from Sillwater Creek Confluence, 1.8 miles (air) northeast of Balls Ferry Road exit from Interstate 5 in Anderson. Undesignated section of San Buenaventura Land Grant. 117 Comment
  CHSC117662  Cyperus bipartitus Lowell Ahart; John Dittes 2016-8-25 21278 Tehama Along the west edge of the Sacramento River, Anderson River Park, 0.7 miles (air) upstream from Stillwater Creek Confluence 1.8 miles (air) northeast of Balls Ferry Road exit from Interstate 5 in Anderson. Undesignated section of San Buenaventura Land Grant. 117 Comment
  CHSC117715  Brickellia californica Lowell Ahart; John Dittes 2016-8-25 21295 Tehama East of the parking area, about 170 yards west of the Sacramento River, Anderson River Park, 0.7 miles (air) upstream from Stillwater Creek Confluence 1.8 miles (air) northeast of Balls Ferry Road exit from Interstate 5 in Anderson. Undesignated section of San Buenaventura Land Grant. 117 Comment
  CHSC117734  Senecio sylvaticus Lowell Ahart; John Dittes, Josephine Guardino 2016-9-21 21356 Tehama A little east of the large bog, about 300 yards east of the spring, east of the camping area, west side of Childs Meadow, 0.67 air-miles west of intersection of State Highway 36 and Wilson Lake Road (County Road 769), 1.21 air-miles southeast of Doe Mt., 10.41 air-miles south of Lassen Peak. 1474 Comment
  CHSC63231  Listera convallarioides Lowell Ahart 1994-7-24 7517 Tehama On the sides of Willow Creek, about 1/4 mile north of the dirt road, about 1 1/2 miles (air) north of Jonesville. 1645 Comment
  CHSC80630  Spergularia bocconi Lowell Ahart 2001-6-14 8838 Tehama North of the dirt road that leads to the tower, east sides of the road M2, about 8 miles west of Paskenta. 609 Comment
  CHSC80634  Cuscuta californica var. breviflora Lowell Ahart 2001-6-8 8771 Tehama Along a small wash, burned area on the east side of road M2, about 9 miles west of Paskenta. 762 Comment
  CHSC80647  Rupertia hallii Lowell Ahart 2001-6-16 8861 Tehama On south side of the dirt road, about 3 miles west of Highway 32, west of Soda Springs Campground, about 4 miles (air) west of Butte Meadows. 1158 Comment
  CHSC80667  Camissoniopsis hirtella Lowell Ahart 2001-6-14 8826 Tehama On the west side of the dirt road that leads to the tower, on the east side of road M2, about 8 miles west of Paskenta. 609 Comment
  CHSC80699  Penstemon neotericus Lowell Ahart 2001-6-16 8847 Tehama On the south side of the dirt road, about 5 miles west of Highway 32, west of Soda Springs Campground, about 5 miles (air) west of Butte Meadows. 1082 Comment
  CHSC82307  Epilobium minutum Lowell Ahart 2002-4-27 9569 Tehama Near a wash and a large rock outcrop, about 100 yards from the east side of Road M2 and 20 yards east of the poor dirt road used to service the pole line, about 350 yards northwest of the dirt road that leads to the tower, about 8 miles west of Paskenta. 609 Comment
  CHSC82520  Botrychium simplex Lowell Ahart 2002-6-29 9798 Tehama On the south side of a partly fallen lodgepole pine, in the north part of a large meadow, on the east side of Willow Creek, about 1/8 mile south of Colby Mountain Lookout Road where it crosses Willow Creek, about 5 miles (air) northeast of Butte Meadows. 1574 Comment
  CHSC83094  Calycadenia fremontii Lowell Ahart; John Dittes, Jim Gannon, Lyle Martinez 2002-11-4 10004 Tehama Bottom of a wash, Jewett Creek, east of Marguerite Road, about 1 1/4 mile (air) southeast of Corning. 74 Comment
  CHSC83889  Trifolium ciliolatum Lowell Ahart; John Dittes, Daphne Christopher, Hannah Stevens 2003-4-17 10105 Tehama Along the trail, on the north side of Dye Creek, about 1/2 mile east of the Dye Creek buildings, Dye Creek Preserve, about 6 miles (air) northeast of Los Molinos. 174 Comment
  CHSC84257  Rorippa nasturtium-aquaticum Lowell Ahart; John Dittes 2003-6-11 10240 Tehama On the west side of Battle Creek, about 1 mile north of Manton Road, about 1 1/2 miles (air) northeast of the Colman Power House, about 5 miles (air) west-southwest of Darah Springs State Fish Hatchery, about 10 miles (air) east-northeast of Cottonwood. 153 Comment
  CHSC84317  Hypericum perforatum Lowell Ahart; John Dittes 2003-6-11 10277 Tehama On the west side of Battle Creek, about 1 mile north of Manton Road, about 1 1/2 miles (air) northeast of the Colman Power House, about 5 miles (air) west-southwest of Darah Springs State Fish Hatchery, about 10 miles (air) east-northeast of Cottonwood. 153 Comment
  CHSC84339  Aconitum columbianum var. columbianum Lowell Ahart 2003-8-24 10540 Tehama In a meadow, on the east side of Willow Creek, about 1/2 mile (air) north of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1569 Comment
  CHSC84586  Eragrostis pectinacea var. pectinacea Lowell Ahart; John Dittes 2003-9-17 10606 Tehama On a gravel bar on the south side of Deer Creek, about 400 yards east of Highway 99, about 5 miles (air) southeast of Los Molinos. 60 Comment
  CHSC84609  Heterotheca oregona var. compacta Lowell Ahart; John Dittes 2003-9-17 10584 Tehama On a gravel bar on the south side of Deer Creek, about 400 yards east of Highway 99, about 5 miles (air) southeast of Los Molinos. 60 Comment
  CHSC87319  Rhus aromatica Lowell Ahart 2004-4-29 10814 Tehama Along the Nomalaki Trail, about 1/4 mile by trail southwest of Dead Rabbit Lake, about 1 mile northwest of Bowers Creek, about 1 3/4 miles northwest of Forest Road 23N69 (Mud Flat Road), about 7 miles (air) southwest of Paskenta. 597 Comment
  CHSC87325  Veronica peregrina subsp. xalapensis Lowell Ahart 2004-4-29 10786 Tehama Near a vernal pool, along the Nomalaki Trail, about 1/2 mile northwest of Bowers Creek, about 1 1/4 miles northwest of Forest Road 23N69 (Mud Flat Road), about 7 miles (air) southwest of Paskenta. 571 Comment
  CHSC87360  Sidalcea hartwegii Lowell Ahart 2004-4-29 10780 Tehama About 20 yards north of the Nomalaki Trail, about 50 yards north of Bowers Creek, about 3/4 mile northwest of Forest Road 23N69 (Mud Flat Road), about 6 1/2 miles (air) southwest of Paskenta. 523 Comment
  CHSC87362  Clarkia lassenensis Lowell Ahart 2004-4-29 10805 Tehama About 1/4 mile north of an unnamed lake, along the Nomalaki Trail, about 1 mile by trail northwest of Dead Rabbit Lake, about 1 3/4 miles northwest of Bowers Creek, about 2 1/2 miles northwest of Forest Road 23N69 (Mud Flat Road), about 8 miles (air) southwest of Paskenta. 498 Comment
  CHSC87364  Anagallis arvensis Lowell Ahart 2004-4-29 10800 Tehama On the east side of an unnamed lake, west of the Nomalaki Trail, about 3/4 mile by trail northwest of Dead Rabbit Lake, about 1 1/2 miles northwest of Bowers Creek, about 2 1/4 miles northwest of Forest Road 23N69 (Mud Flat Road), about 8 miles (air) southwest of Paskenta. 564 Comment
  CHSC87809  Datisca glomerata Lowell Ahart 2004-6-11 11044 Tehama On the south edge of Thomes Creek, west of the end of the Nomalaki Trail, about 1/2 mile north of Dead Rabbit Lake, about 2 miles northwest of Bowers Creek, about 2 3/4 miles northwest of Forest Road 23N69 (Mud Flat Road), about 8 miles (air) southwest of Paskenta. 338 Comment
  CHSC87852  Antirrhinum subcordatum Lowell Ahart 2004-6-11 11019 Tehama Hillside on the west side of the Nomalaki Trail, about 100 yards north of Bowers Creek, about 3/4 mile northwest of Forest Road 23N69 (Mud Flat Road), about 6 1/2 miles (air) southwest of Paskenta. 553 Comment
  CHSC87854  Carex pellita Lowell Ahart 2004-6-11 11033 Tehama On the west margin of Dead Rabbit Lake, about 100 yards west of the Nomalaki Trail, about 1 1/2 miles northwest of Bowers Creek, about 2 1/4 miles northwest of Forest Road 23N69 (Mud Flat Road), about 8 miles (air) southwest of Paskenta. 545 Comment
  CHSC88256  Epilobium ciliatum subsp. ciliatum Lowell Ahart; Samantha Mackey Hillaire 2004-7-9 11199 A Tehama Seep on the north side of the Mill Creek Trail (4E10), north of Mill Creek, about 3/4 mile west of the Black Rock, Black Rock Campground, and Ponderosa Way (Forest Road 28N29), about 26 miles (air) east of Red Bluff. 655 Comment
  CHSC88279  Hesperolinon tehamense Lowell Ahart 2004-6-30 11150 Tehama Along a small wash, burned area on the east side of Road M2, about 9 miles west of Paskenta. 883 Comment
  CHSC88283  Echinochloa colona Lowell Ahart 2004-6-28 11129 Tehama Gravel bar on the south side of Thomes Creek, about 1/4 mile east of Paskenta. 213 Comment
  CHSC88285  Erythranthe microphylla Lowell Ahart 2004-6-28 11126 Tehama Gravel bar on the south side of Thomes Creek, about 1/4 mile east of Paskenta. 213 Comment
  CHSC93461  Claytonia parviflora subsp. parviflora Lowell Ahart 2006-5-5 12573 Tehama Along the Nomalaki Trail (Thomes Gorge Trail), about 100 yards west of China Gulch, about 1/4 mile south of Bowers Creek, about 3/4 mile northwest of Forest Road 23N69 (Mud Flat Road), about 6 1/2 miles (air) southwest of Paskenta. 576 Comment
  CHSC94194  Polygonum douglasii subsp. douglasii Lowell Ahart 2006-7-11 12950 Tehama On the high east bank of Colby Creek, about 50 yards north of where the dirt road crosses Colby Creek, about 2 miles (air) southeast of Colby Mountain, about 5 miles (air) northeast of Butte Meadows. 1518 Comment
  CHSC94219  Carex integra Lowell Ahart 2006-7-11 12945 Tehama On the high east bank of Colby Creek, about 50 yards north of where the dirt road crosses Colby Creek, about 2 miles (air) southeast of Colby Mountain, about 5 miles (air) northeast of Butte Meadows. 1518 Comment
  CHSC94237  Lathyrus brownii Lowell Ahart 2006-7-11 12953 Tehama On the high west bank of Colby Creek, about 50 yards north of where the dirt road crosses Colby Creek, about 2 miles (air) southeast of Colby Mountain, about 5 miles (air) northeast of Butte Meadows. 1518 Comment
  CHSC94302  Sidalcea oregana subsp. spicata Lowell Ahart 2006-7-25 13079 Tehama In a small meadow on the west side of the road, near Colby Creek, about 2 miles (air) southeast of Colby Mountain, about 5 miles (air) northeast of Butte Meadows. 1518 Comment
  CHSC94304  Epilobium brachycarpum Lowell Ahart 2006-7-26 13075 Tehama On the west edge of the dirt road, about 20 yards east of where the dirt road crosses Colby Creek, about 2 miles (air) southeast of Colby Mountain, about 5 mile (air) northeast of Butte Meadows. 1518 Comment
  CHSC94359  Montia linearis Lowell Ahart 2006-7-19 13047 Tehama In a large meadow and bog, about 40 yards west of the abandoned logging road, about 250 yards north of where the dirt road crosses Colby Creek, about 2 miles (air) southeast of Colby Mountain, about 5 1/8 miles (air) northeast of Butte Meadows. 1540 Comment
  CHSC94558  Torreyochloa pallida var. pauciflora Lowell Ahart 2006-9-9 13252 Tehama In shallow water of Colby Creek, west of the dirt road, south of the large man made piles of soil and rock, about 1 3/4 miles (air) southeast of Colby Mountain, about 4 3/4 miles (air) northeast of Butte Meadows. 1503 Comment
  CHSC96531  Vulpia microstachys var. pauciflora Lowell Ahart 2007-5-8 13758 Tehama Along flood plain of Dibble Creek, about 100 yards north of Highway 36, about 3.7 miles west of the intersection of Highway 36 and 99 or I-5, about 4 miles (air) northwest of Red Bluff. 111 Comment
  CHSC96628  Nemophila pedunculata Lowell Ahart; John Dittes, Josephine Guardino 2007-4-3 13623 Tehama On the west side of Brush Creek (a north branch), about 4 miles (air) northeast of the intersection of Highway 99 East and Vina Road, about 7 miles (air) southeast of Los Molinos. 112 Comment
  CHSC96657  Lathyrus angulatus Lowell Ahart 2007-5-8 13737 Tehama Along flood plain of Dibble Creek, about 100 yards north of Highway 36, about 3.7 miles west of the intersection of Highway 36 and 99 or I-5, about 4 miles (air) northwest of Red Bluff. 111 Comment
  CHSC96673  Brachypodium distachyon Lowell Ahart 2007-5-8 13747 Tehama Along flood plain of Dibble Creek, about 100 yards north of Highway 36, about 3.7 miles west of the intersection of Highway 36 and 99 or I-5, about 4 miles (air) northwest of Red Bluff. 111 Comment
  CHSC96675  Astragalus gambelianus Lowell Ahart; John Dittes, Andrea Craig 2007-5-13 13837 Tehama Along a poor dirt road, about 100 yards north of Manton Road, about 3.9 miles east northeast of the intersection of Manton Road and Wildcat Road, about 2 miles (air) southwest of Manton. 256 Comment
  HSC95412  Brickellia californica L. Ahart, John Dittes 2003-9-17 10570 Tehama S side of Deer Creek, 400 yards E of Hwy. 99, 5 mi. SE of Los Molinos 61 Comment
  HSC96913  Isoetes nuttallii L. Ahart 2004-4-29 10782 Tehama About 10 yards W of the Nomalaki Trail, about 0.5 mi. NW of Bowers Creek, about 1.25 mi. NW of Forest Rd. 23N69 (Mud Flat Rd.), about 7 mi. SW of Paskenta 571 Comment
  JEPS102680  Carex serratodens Lowell Ahart 2001-6-8 8793 Tehama On the west side of road M2, about 9 miles west of Paskenta. 792 Comment
  JEPS102775  Euphorbia crenulata Lowell Ahart 2001-6-16 8871 Tehama On east side of the dirt road, near Ike Dye Hill, about 2 miles west of Highway 32, west of Soda Springs Campground, about 3 miles (air) west of Butte Meadows. 1341 Comment
  JEPS102865  Streptanthus drepanoides Lowell Ahart 2001-6-8 8765 Tehama On the W side of road M2, ca 9 miles W of paskenta. 792 Comment
  JEPS102872  Mentzelia dispersa Lowell Ahart 2001-6-8 8780 Tehama S side of road M2, 9 mi W of Paskenta 792 Comment
  JEPS104078  Trifolium microcephalum Lowell Ahart 2003-8-23 10537 Tehama Along a small streamlet, on both sides of the trail, ca 1/8 mi from the campsite as one hikes to Square Lake, ca 1 mi ne of Mount Linn, South Yolla Bolly. 2118 Comment
  JEPS104136  Veronica anagallis-aquatica Lowell Ahart 2003-6-11 10266 Tehama On the w side of Battle Creek, ca 1 mi n of Manton Rd, ca 1 1/2 mi (air) ne of the Colman Power House, ca 5 mi (air) wsw of Darah Springs State Fish Hatchery, ca 10 mi (air) ene of Cottonwood. 153 Comment
  JEPS104202  Stachys ajugoides var. rigida Lowell Ahart 2003-8-23 10531 Tehama Meadow edge, ca 80 yd e of Square Lake, ca 3/4 mi ne of Mount Linn, South Yolla Bolly. 2112 Comment
  JEPS104233  Cyperus flavescens Lowell Ahart, John Dittes 2003-9-17 10594 Tehama 5 air mi SE of Los Molinos (Deer Creek, S side, 400 yds E of Hwy 99) 60 Comment
  JEPS104279  Calycadenia truncata Lowell Ahart 2003-9-17 10571 Tehama On a gravel bar on the south side of Deer Creek, ca 400 yd e of Highway 99, ca 5 mi (air) se of Los Molinos. 60 Comment
  JEPS104296  Epilobium pallidum Lowell Ahart 2003-6-11 10247 Tehama On the w side of Battle Creek, ca 1 mi n of Manton Rd, ca 1 1/2 mi (air) ne of the Colman Power House, ca 5 mi (air) wsw of Darah Springs State Fish Hatchery, ca 10 mi (air) ene of Cottonwood. 153 Comment
  JEPS104443  Eleocharis flavescens var. flavescens Lowell Ahart 2003-9-17 10600 Tehama On a gravel bar on the south side of Deer Creek, about 400 yards east of Highway 99, about 5 miles (air) southeast of Los Molinos. 60 Comment
  JEPS104452  Dianthus armeria subsp. armeria Lowell Ahart 2003-6-11 10241 Tehama On the w side of Battle Creek, ca 1 mi n of Manton Rd, ca 1 1/2 mi (air) ne of the Colman Power House, ca 5 mi (air) wsw of Darah Springs State Fish Hatchery, ca 10 mi (air) ene of Cottonwood. 153 Comment
  JEPS105967  Stachys ajugoides var. rigida Lowell Ahart 2004-6-28 11131 Tehama Gravel bar on the south side of Thomes Creek, about 1/4 mile east of Paskenta 213 Comment
  JEPS106208  Eleocharis macrostachya Lowell Ahart 2004-6-28 11136 Tehama Gravel bar on the south side of Thomes Creek, about 1/4 mile east of Paskenta 213 Comment
  JEPS106237  Bromus carinatus var. carinatus Lowell Ahart, Samantha Mackey Hillaire 2004-7-9 11219 Tehama On both sides of Ponderosa Way (Forest Road 28N29), about 1 mile southeast of the Black Rock, about 1 mile (air) southeast of the Black Rock Campground and the bridge across Mill Creek, about 27 miles (air) east of Red Bluff 696 Comment
  JEPS106248  Holcus lanatus Lowell Ahart, Samantha Mackey Hillaire 2004-7-9 11188 Tehama Seep on the north side of the Mill Creek Trail (4E10), north of Mill Creek, about 3/4 mile west of the Black Rock, Black Rock Campground, and Ponderosa Way (Forest Road 28N29), about 26 miles (air) east of Red Bluff 655 Comment
  JEPS108766  Madia gracilis Lowell Ahart 2006-8-15 13197 Tehama East side of a small wash, east of Colby Creek, west of the poor dirt road, about 3/4 mile northwest of the Snowmobile Area, about 1 1/4 miles (air) northwest of Jonesville, about 4 3/4 miles (air) northeast of Butte Meadows 1503 Comment
  JEPS108876  Arabis rectissima var. rectissima Lowell Ahart 2006-7-19 13041 Tehama Forest along the abandoned logging road, about 170 yards northeast of where the dirt road crosses Colby Creek, about 2 miles (air) southeast of Colby Mountain, about 5 1/8 miles (air) northeast of Butte Meadows 1540 Comment
  JEPS108884  Lupinus lepidus var. sellulus Lowell Ahart 2006-7-19 13032 Tehama North edge of an open dry flat, about 100 yards west of the dirt road, about 50 yards east of Colby Creek, about 2 miles (air) southeast of Colby Mountain, about 5 miles (air) northeast of Butte Meadows 1525 Comment
  JEPS108899  Vicia americana var. americana Lowell Ahart 2006-7-11 12954 Tehama On the high west bank of Colby Creek, about 50 yards north of where the dirt road crosses Colby Creek, about 2 miles (air) southeast of Colby Mountain, about 5 miles (air) northeast of Butte Meadows 1518 Comment
  JEPS108938  Symphyotrichum spathulatum Lowell Ahart 2006-9-9 13254 Tehama Open dry meadow area west of the dirt road , just east of Colby Creek, south of the large man made piles of soil and rock, about 1 3/4 miles (air) southeast of Colby Mountain, about 4 3/4 miles (air) northeast of Butte Meadows 1503 Comment
  JEPS110134  Cryptantha torreyana Lowell Ahart 2006-7-19 13022 Tehama Open meadow area just west of the dirt road, east of Colby Creek, near large man-made piles of soil and rock, about 1 3/4 miles (air) southeast of Colby Mountain, about 4 3/4 miles (air) northeast of Butte Meadows 1503 Comment
  JEPS113204  Plagiobothrys austiniae Lowell Ahart, Richard Lansdown 2007-4-25 13696 Tehama On the bottom of a very large shallow drainage, about 100 yards north of Cannon Road, about 1/2 mile west of the intersection of Cannon Road and Highway 36, about 16 miles west of Red Bluff 270 Comment
  JEPS113216  Gilia tricolor subsp. tricolor Lowell Ahart, John Dittes, Josephine Guardino 2007-4-3 13622 Tehama On the west side of Brush Creek (a north branch), about 4 miles (air) northeast of the intersection of Highway 99 East and Vina Road, about 7 miles (air) southeast of Los Molinos 112 Comment
  JEPS113278  Trifolium arvense Lowell Ahart, John Dittes, Andrea Craig 2007-5-13 13830 Tehama 20 feet east of a poor dirt road, about 100 yards north of Manton Road, about 3.9 miles east northeast of the intersection of Manton Road and Wildcat Road, about 2 miles (air) southwest of Manton 256 Comment
  JEPS116011  Cuscuta californica var. californica Lowell Ahart, Josephine Guardino 2009-9-6 16370 Tehama East of the enclosure, east of Gurnsey Creek, about 3/4 mile southwest of the intersection of Highway 36 and Paynes Creek Road, about 6 1/2 miles (air) southeast of Mineral 1478 Comment
  JEPS117664  Juncus effusus subsp. pacificus Lowell Ahart, John Dittes 2010-7-17 16864 Tehama On damp red soil, seep, about 20 yards east of the east side of the pond, Soap Creek Ranch, about 4.8 miles (air) southeast of Manton, about 2 miles (air) north of Highway 36 812 Comment
  JEPS118013  Lythrum hyssopifolia Lowell Ahart, John Dittes 2011-6-9 17446 Tehama Rio De Los Molinos Land Grant. High water line of a large vernal pool, sand dune area, about 100 yards south of the fence, 1.6 miles (air) east of Highway 99, 2.4 miles (air) northeast of Vina 80 Comment
  JEPS121177  Veronica catenata Lowell Ahart 2013-8-2 18981 Tehama S side of Burris Creek, strand of Black Butte Reservoir, about 1.5 miles SW of the Dam, about 12 air miles NW of Orland. Comment
  JEPS121181  Crypsis schoenoides Lowell Ahart 2013-8-2 18979 Tehama S side of Burris Creek, strand of Black Butte Reservoir, about 1.5 miles SW of the Dam, about 12 air miles NW of Orland. Comment
  JEPS122009  Plagiobothrys canescens var. canescens Lowell Ahart 2014-5-8 19441 Tehama On the south side of the paved road to Berris Creek, about 0.4 mile east of the intersection with Black Butte Road, about 12 1/2 miles (air) southwest of Corning. Comment
  JEPS122049  Chorizanthe polygonoides var. polygonoides Lowell Ahart, John Dittes 2014-5-18 19526 Tehama About 2 miles east of the end of Lyon Cattle Road, about 4 miles (air) northeast of Los Molinos. Comment
  JEPS123955  Porterella carnosula Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-7-31 20405 Tehama East of County Road 769, 2.05 air miles east of intersection of State Highway 36 and Wilson Lake Road, 2.32 air miles north-northeast of Gurnsey Creek Campground, 10.74 air miles south-southeast of Lassen Peak. Comment
  JEPS124008  Navarretia sinistra subsp. sinistra Lowell Ahart, John Dittes 2015-8-6 20521 Tehama West side of Childs Meadow, 0.67 air miles west of intersection of State Highway 36 and Wilson Lake Road (County Road 769), 1.21 air miles southeast of Doe Mountain, 10.41 air miles south of Lassen Peak. Comment
  JEPS124048  Kyhosia bolanderi Lowell Ahart, John Dittes 2015-8-5 20453 Tehama East side of Childs Meadow, 150 yards west of Highway 36, 0.69 air-miles northwest of intersection of State Highway 36 and Wilson Lake Road (County Road 769), 1.2 air-miles east of Doe Mountain, 9.77 air-miles south of Lassen Peak. Comment
  JEPS124057  Goodyera oblongifolia Lowell Ahart, John Dittes 2015-8-5 20482 Tehama East side of Childs Meadow, 10 yards west of Highway 36, 0.69 air-miles northwest of intersection of State Highway 36 and Wilson Lake Road (County Road 769), 1.2 air-miles east of Doe Mountain, 9.77 air-miles south of Lassen Peak. Comment
  JEPS124117  Elatine Lowell Ahart, John Dittes 2015-6-22 20263 Tehama About 1/4 mile north of Lassen Road, about 1.7 miles northeast of the intersection of Lassen Road and State Highway 99-E, about 4 miles (air) east of Vina, about 7 miles (air) southeast of Los Molinos. Comment
  JEPS127142  Hypericum perforatum subsp. perforatum Lowell Ahart, John Dittes 2016-8-25 21300 Tehama Anderson River Park, 0.7 mile (air) upstream from Stillwater Creek Confluence, 1.8 miles (air) northeast of Balls Ferry Road exit from Interstate 5 in Anderson. Undesignated Section of San Buenaventura Land Grant. Comment
  JEPS127256  Polypodium calirhiza Lowell Ahart, John Dittes, Josephine Guardino 2016-2-11 20699 Tehama About 100 yards northwest of the fish ladder, about 2 miles by trail to Highway 32. Comment
  JEPS127318  Equisetum hyemale subsp. affine Lowell Ahart, John Dittes 2016-8-25 21308 Tehama Anderson River Park, 0.7 mile (air) upstream from Stillwater Creek Confluence, 1.8 miles (air) northeast of Balls Ferry Road exit from interstate 5 in Anderson. Undesignated Section of San Buenaventura Land Grant. Comment
  JEPS98976  Antirrhinum subcordatum Lowell Ahart 2001-6-8 8787 Tehama On the west side of road M2, about 9 miles west of Paskenta. 792 Comment
  RSA699607  Epilobium ciliatum subsp. ciliatum L. Ahart 2004-6-28 11128 Tehama South side of Thomes Creek, about 0.25 mile east of Paskenta. 214 Comment
  RSA712812  Stellaria nitens L. Ahart 2006-5-5 12576 Tehama Along the Nomalaki Trail (Thomes Gorge Trail), about 100 yards south of Bowers Creek, about 3/4 mile northwest of Forest Road 23N69 (Mud Flat Road), about 6.5 miles (air) southwest of Paskenta. 531 Comment
  RSA712814  Yabea microcarpa L. Ahart 2006-5-5 12571 Tehama Along the Nomalaki Trail (Thomes Gorge Trail), about 1/2 mile NW of Forest Road 23N69 (Mud Flat Road), about 7 miles (air) southwest of Paskenta. 585 Comment
  RSA718203  Penstemon rydbergii var. oreocharis L. Ahart 2006-7-19 13026 Tehama South of an open dry flat, about 100 yrds west of the dirt road, east of Colby Creek, about 2 miles (air) southeast of Colby Mountain, about 5 miles (air) northeast of Butte Meadows. 1526 Comment
  RSA718205  Carex nebrascensis L. Ahart 2006-7-19 13039 Tehama East side of the abandoned logging road, about 150 yards northeast of where the dirt road crosses Colby Creek, about 2 miles (air) southeast of Colby Mountain, about 5 1/8 miles (air) northeast of Butte Meadows. 1541 Comment
  RSA719179  Juncus howellii L. Ahart 2006-7-19 13016 Tehama East of Colby Creek, near large man made piles of soil and rock, about 1.75 miles (air) SE of Colby Mountain, about 4.75 miles (air) NE of Butte Meadows. 1504 Comment
  RSA719183  Arabis rectissima L. Ahart 2006-7-19 13041 Tehama About 170 yards northeast of where the dirt road crosses Colby Creek, about 2 air miles southeast of Colby Mountain, about 5 1/8 air miles northeast of Butte Meadows 1541 Comment
  RSA795890  Mimulus floribundus L. Ahart 2012-6-2 18147 Tehama East side of Long Road, about 6.7 miles northeast of Dales and State Highway 36, northeast of Red Bluff. 326 Comment
  SEINET3450816  Plantago erecta Lowell Ahart, John Dittes, Daphne Christopher, Hannah Stevens 2003-4-17 10110 Tehama Los Molinos, Los Molinos, about 6 air miles northeast, Dye Creek Preserve, about 0.5 miles east of the Dye Creek buildings, along trail on the north side of Dye Creek 170 Comment
  UC1442622  Cryptantha crinita Lowell Ahart 1979-4-25 Tehama 5 mi n Red Bluff (along Dibble Creek, near road sign that reads McCory Road and Matlock LP <note inside packet, From the map this sign seems to be giving wrong info>); Dibble Creek 130 Comment
  UC1442624  Cryptantha crinita Lowell Ahart 1979-4-25 Tehama 6.4 mi n Red Bluff (on gravel bars along Blue Tent Creek (take dirt road branching of McCoy Road)); Blue Tent Creek 150 Comment
  HSC95451  Cuscuta occidentalis L. Ahart 2001-6-8 8771 Tehama E side of Rd. M2, 9 mi. W of Paskenta. 762 Comment
  SBBG119785  Psilocarphus tenellus var. tenellus L. Ahart 2004-4-29 10787 Tehama Nomalaki Trail, ca. 0.5 mi NW of Bowers Crk, ca. 1.25 mi NW of Forest Rd 23N69 (Mud Flat Rd), ca. 7 air mi SW of Paskenta 571 Comment
  SEINET13710614  Rosa gymnocarpa Lowell William Ahart, Lowell William Ahart 2001-1 9182 Tehama E Side Hwy 32 and SE of Jct. Rd. 390-G of Sierra Pacific Industries 4 Rd. Mi. S Road across Deer Creek (T27N, R3E, sec 36, SE 1/4) 4000 Ft. 1219 Comment
  GH351721  Elatine rubella L. Ahart 1984-5-8 4596 Unknown Ca. 2.5 mi N and 1.4 mi E of Honcut, ca. 12 mi S of Oroville. Valley Grassland; 40 m. T17N R4E Comment
  GH403597  Boechera horizontalis L. Ahart 1986-7-8 5356 Unknown ca. 1 mi. NW of Pilot Peak, ca. 14 mi. NE of La Porte 1950 Comment
  GH404905  Juncus tenuis L. Ahart 2007-7-2 14244 Unknown east side of the restroom, at the parking area at Big Bald Rock, about 14 miles (air) northeast of Oroville 1001 Comment
  CAS-BOT-BC113586  Eleocharis acicularis var. bella Lowell Ahart 1980-6-19 2403 Yuba 3 mi SE of Challenge. 800 Comment
  CAS-BOT-BC203409  Elymus glaucus subsp. glaucus Lowell Ahart 1980-8-12 2566 Yuba Along Slate Creek 1250 Comment
  CAS-BOT-BC218690  Achnatherum lemmonii Lowell Ahart 1982-7-4 3658 Yuba On a roadcut bank, near the Brownsville Dump, Sierra Nevada 600 Comment
  CAS-BOT-BC227154  Elymus elymoides Lowell Ahart 1979-6-25 s.n. Yuba 2 mi e of Challenge 700 Comment
  CAS-BOT-BC228729  Cistanthe umbellata Lowell Ahart 1980-8-12 2548 Yuba Along Slate Creek 1250 Comment
  CAS-BOT-BC240567  Lonicera hispidula Lowell Ahart 1980-6-19 2402 Yuba 3 miles south-east of Challenge 800 Comment
  CAS-BOT-BC303348  Gnaphalium palustre Lowell Ahart 1980-8-12 2564 Yuba Along Slate Creek 1250 Comment
  CAS-BOT-BC414406  Polygonum douglasii Lowell Ahart 1980-8-12 2540 Yuba Along Slate Creek 1250 Comment
  CDA2163  Glyceria declinata L. Ahart 1999-9-17 8248 Yuba Sam Shintaffer Farm, south of Woodruff Lane, south of Mathews Road, 100 yards south of Sam Shintaffer s rice dryer, about 5 miles (air) northeast of Marysville. Comment
  CDA28150  Agrostis stolonifera L. Ahart 2003-7-6 10366 Yuba East of the power line, about 50 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. Comment
  CDA42982  Digitaria sanguinalis L. Ahart 2013-11-3 19302 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. Comment
  CHSC107559  Spergula arvensis subsp. arvensis Lowell Ahart 2011-6-7 17390 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC108206  Trifolium arvense Lowell Ahart 2011-6-7 17397 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC108214  Navarretia pubescens Lowell Ahart 2011-6-7 17406 Yuba Openings in woodlands, about 100 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC108226  Petrorhagia dubia Lowell Ahart 2011-6-7 17388 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC10845  Diplacus grandiflorus Lowell Ahart 1967-6-6 Yuba Near Bullard's Bar. 609 Comment
  CHSC113187  Selaginella hansenii Lowell Ahart 2013-11-30 19312 Yuba On a large rock, on north side of Dry Creek, just above the high water line of Collins Lake, about 300 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 360 Comment
  CHSC115286  Horkelia tridentata var. tridentata Lowell Ahart 2015-4-30 20126 Yuba Open forest, on the north side of the gravel road, about 30 yards east of the gate, about 3/4 mile (air) southeast of Woodleaf. 948 Comment
  CHSC116039  Lipocarpha micrantha Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20645 Yuba North of the spillway area, at the west side and near top of Lake Francis Dam, below the high water line of Lake Francis, about 1-1/2 miles south of Dobbins. 512 Comment
  CHSC116119  Erigeron canadensis Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20638 Yuba On the bottom of the spillway area at the west side and near the top of Lake Francis Dam, below the high water line of Lake Francis, about 1-1/2 miles south of Dobbins. 512 Comment
  CHSC32094  Nemophila menziesii L. Ahart 1973-4-15 208 Yuba On dry edge of rd cut bank, Darby Rd, Bangor. 304 Comment
  CHSC37190  Achnatherum lemmonii L. Ahart 1982-7-4 3658 Yuba Near Brownsville Dump, Brownsville. 600 Comment
  CHSC37192  Bromus carinatus var. marginatus L. Ahart 1982-7-4 3661 Yuba Ca. 1/2 mi e of Brownsville, along LaPorte Rd. 700 Comment
  CHSC43301  Alnus rhombifolia Lowell Ahart 1976-1-19 997 Yuba Along the edge of South Honcut Creek, near bridge, near Ramirez Road. 33 Comment
  CHSC43412  Pickeringia montana Lowell Ahart 1975-6-25 812 Yuba Near the Brownsville dump, about 2 miles west of Brownsville. 487 Comment
  CHSC45876  Perideridia parishii subsp. latifolia Lowell Ahart 1980-8-12 2530 Yuba Near the edge of the dirt road, about 2 miles south-east of Woodleaf. 731 Comment
  CHSC45976  Ribes roezlii Lowell Ahart 1972-4-28 90 Yuba Growing on a dry open mountain side, about 3 air miles north-east of Strawberry Valley, near Slate Creek, about 10 air miles south of La Porte. 914 Comment
  CHSC47426  Quercus durata var. durata Lowell Ahart 1976-7-11 999 Yuba Near the intersection of Forbestown Road and Abernathy Road, about 3 miles north of Challenge. 853 Comment
  CHSC47552  Juncus ensifolius Lowell Ahart 1980-8-12 2539 Yuba On a large gravel bar in Slate Creek, west of where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  CHSC63198  Juncus orthophyllus Lowell Ahart 1994-6-27 7378 Yuba Near the northeast side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles northeast of Strawberry Valley. 1219 Comment
  CHSC63206  Arrhenatherum elatius Lowell Ahart 1994-6-27 7392 Yuba North-west side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  CHSC68466  Lomatium marginatum var. marginatum Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7734 Yuba Along south side of Dry Creek, north of the poor dirt road, about 1 mile east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 121 Comment
  CHSC68481  Collinsia heterophylla Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir. 1997-4-6 7722 Yuba South of the poor dirt road, north of the Browns Valley Water Ditch, south of Dry Creek, about 1 mile east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 182 Comment
  CHSC69458  Juncus ensifolius Lowell Ahart 1997-8-30 7878 Yuba On the west side of the dirt road, near a road culvert, about one mile (air) south of Woodleaf. 944 Comment
  CHSC76269  Erigeron sumatrensis Lowell Ahart 1999-9-17 8254 Yuba Sam Shintaffer Farm, on the west side of Kimball Lane, near the intersection of Kimball Lane and Hallwood Blvd., about 3/4 mile south of San Shintaffer's rice dryer, about 4 1/4 miles (air) northeast of Marysville. 22 Comment
  CHSC76297  Sagittaria montevidensis subsp. calycina Lowell Ahart 1999-9-17 8237 Yuba In a rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  CHSC76309  Juncus acuminatus Lowell Ahart 1999-9-17 8257 Yuba Sam Shintaffer Farm, on the west side of Kimball Lane, near the intersection of Kimball Lane and Hallwood Blvd., about 3/4 mile south of Sam Shintaffer's rice dryer, about 4 1/4 miles (air) northeast of Marysville. 22 Comment
  CHSC78156  Oxalis laxa Lowell Ahart 2000-5-25 8401 Yuba Bank of a large wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  CHSC78179  Eleocharis acicularis var. occidentalis Lowell Ahart 2000-6-11 8471 Yuba On the east side of a small wash, west of Smartville Road, about 1/8 mile southwest of the intersection of Waldo Road and Smartville Road, about 8 miles (air) south of Smartville. 99 Comment
  CHSC78185  Eleocharis macrostachya Lowell Ahart 2000-6-11 8461 Yuba On the bottom of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  CHSC78301  Eleocharis quinqueflora Lowell Ahart 2000-6-19 8493 Yuba Wet meadow, about 100 yards north of New York Flat Road, about 1 1/4 miles (air) northeast of Brownsville, about 2 1/4 miles (air) west of Challenge. 731 Comment
  CHSC78313  Eleocharis quinqueflora Lowell Ahart 2000-7-13 8578 Yuba In a small meadowl, on the south side of Ridge Road, about 1/4 mile west of Our House, about 2 miles (air) east of Celestial Valley, about 2 1/2 miles (air) southeast of Camptonville. 975 Comment
  CHSC82382  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2002-6-3 9690 Yuba On the bottom of the pond spillway, second small man made pond, about 1/4 mile south of Long Ravine Road, about 1/8 mile east of the intersection of Camp Far West Road and Long Ravine Road there is a poor Texas gate on the south side of the road, north of Camp Far West Reservoir. 102 Comment
  CHSC84228  Mentha spicata Lowell Ahart 2003-7-17 10417 Yuba On the bottom of a stream, on the west side of Smartville road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 129 Comment
  CHSC84980  Perideridia lemmonii Lowell Ahart 2003-10-11 10624 Yuba West side of meadow, on the east side of a gravel road to the Rose Ranch, about 100 yards west of the paved road to Scales, about 1/2 mile south of the Rose Ranch, about 5 miles (air) northeast of Strawberry Valley, about 7 miles (air) southwest of La Porte. 1219 Comment
  CHSC87340  Viola purpurea subsp. purpurea Lowell Ahart 2004-4-27 10768 Yuba About 20 yards north of a drainage, about 50 yards east of the road, about 1/2 mile (air) southeast of Woodleaf. 931 Comment
  CHSC90339  Lepidium nitidum var. nitidum Lowell Ahart 2005-3-11 11604 Yuba In the middle of the poor dirt road, west of a large rock outcrop, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 386 Comment
  CHSC96876  Carex stipata var. stipata Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-13 14298 Yuba On the south side of Hampshire Creek, on the southeast side of a large wet meadow, about 80 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  CHSC96987  Stellaria borealis subsp. sitchana Lowell Ahart 2007-8-7 14408 Yuba Hampshire Creek Meadow, about 20 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. On the east side of a small pond, on the west side of the dirt road. 1021 Comment
  CHSC97119  Gaultheria ovatifolia Lowell Ahart 2007-8-7 14425 Yuba South of Hampshire Creek Meadow, graded edges of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  CHSC97137  Amaranthus hybridus Lowell Ahart 2007-6-30 14239 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  CHSC97226  Lotus corniculatus Lowell Ahart 2007-6-22 14212 Yuba About 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  CHSC97448  Limnanthes alba subsp. alba Lowell Ahart 2007-5-14 13866 Yuba Damp bare red soil, bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC97501  Callitriche marginata Lowell Ahart 2007-5-12 13784 Yuba Bottom of a scraped area, east side of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC97669  Navarretia heterandra Lowell Ahart 2007-5-12 13804 Yuba About 30 feet north of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC97700  Dittrichia graveolens Lowell Ahart 2007-11-1 14547 Yuba On the north side of Loma Rica Road, east of the Fire Station, about 3/4 mile east of Loma Rica. 146 Comment
  HSC99266  Epilobium densiflorum L. Ahart 2003-7-17 10413 Yuba W side of Smartville Rd., about 2 mi. N of the intersection of Waldo Rd. and Smartville Rd., about 6 mi. S of Smartville 130 Comment
  JEPS102535  Chamaesyce maculata Lowell Ahart 2001-11-2 9399 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  JEPS103243  Trifolium striatum Lowell Ahart 2002-6-3 9689 Yuba N of Camp Far West Reservoir (second small man-made pond, 1/4 mi S of Long Ravine Rd, 1/8 mi E of int of Camp Far West Rd and Long Ravine Rd, poor Texas gate on S side of road) 102 Comment
  JEPS103252  Botrychium multifidum Lowell Ahart 2002-10-9 9964 Yuba E of a small stream, at the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1075 Comment
  JEPS103479  Eleocharis engelmannii Lowell Ahart 2002-10-9 9950 Yuba Area S of a spring, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS105852  Viola purpurea subsp. purpurea Lowell Ahart 2004-4-27 10768 Yuba About 20 yards north of a drainage, about 50 yards east of the road, about 1/2 mile (air) southeast of Woodleaf 931 Comment
  JEPS107450  Aphanes occidentalis Lowell Ahart 2005-3-11 11598 Yuba On W side of the poor dirt road, ca. 1/2 mi W of Marysville Rd, ca. 1/4 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/4 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 344 Comment
  JEPS107451  Marah fabacea var. agrestis Lowell Ahart 2005-3-11 11602 Yuba In center of large rock outcrop, just E of the poor dirt road, ca. 1/2 mi W of Marysville Rd, ca. 1/2 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/2 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 386 Comment
  JEPS113096  Ranunculus hebecarpus Lowell Ahart 2007-4-17 13693 Yuba West of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  JEPS113415  Plantago lanceolata Lowell Ahart 2007-5-14 13867 Yuba Along the dirt road, near the power tower, power tower is about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  JEPS113454  Daucus carota Lowell Ahart 2007-6-22 14213 Yuba About 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 29 Comment
  JEPS113477  Psilocarphus tenellus var. tenellus Lowell Ahart 2007-5-12 13773 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  JEPS113480 Image available Hesperevax caulescens Lowell Ahart 2007-5-12 13775 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS113481  Trifolium hirtum Lowell Ahart 2007-5-12 13793 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS113506  Sidalcea hirsuta Lowell Ahart 2007-5-12 13799 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS113717  Epilobium campestre Lowell Ahart 2007-6-30 14226 Yuba Bottom of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 29 Comment
  JEPS113721  Lolium multiflorum Lowell Ahart 2007-5-14 13854 Yuba Bottom of swales and vernal pools, about 30 yards east of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville 29 Comment
  JEPS113775  Pilularia americana Lowell Ahart 2007-5-12 13765 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS115008  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2007-11-8 14588 Yuba North of the waterway between the headland and the large island, on the strand of Camp Far West Reservoir, about 1/4 mile south of Rock Creek, about 1/2 mile north of Bear River, about 6 miles (air) northeast of Sheridan 73 Comment
  JEPS115028  Leontodon saxatilis subsp. longirostris Lowell Ahart 2007-11-1 14532 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  JEPS115048  Crypsis alopecuroides Lowell Ahart 2007-11-8 14591 Yuba On the strand of Camp Far West Reservoir, about 1/4 mile north of Rock Creek, about 6 1/2 miles (air) northeast of Sheridan 68 Comment
  JEPS118331  Alnus rhombifolia Lowell Ahart 2011-6-7 17385 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  JEPS120942  Fritillaria eastwoodiae Lowell Ahart 2013-4-23 18566 Yuba Along Costa Creek, about 100 yards E of where the paved road crosses Costa Creek, about 2.5 air miles SE of the Forbestown Store. Comment
  JEPS123877  Castilleja pruinosa Lowell Ahart 2015-4-30 20135 Yuba About 2 1/4 miles (air) southwest of the Brownsville, about 2 miles (air) northeast of Rackerby. Comment
  JEPS123880  Trifolium willdenovii Lowell Ahart 2015-4-30 20134 Yuba About 2 1/4 miles (air) southwest of Brownsville, about 2 miles (air) northeast of Rackerby. Comment
  JEPS124265  Juncus balticus subsp. ater Lowell Ahart 2015-11-19 20674 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  JEPS87731  Ranunculus occidentalis Lowell Ahart 1994-7-27 7373 Yuba about 4 mi ne Strawberry Valley (e side of La Porte Rd, in about center of meadow); Schwartz Meadow 1219 Comment
  JEPS94322  Melica torreyana Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7730 Yuba about 17 mi ne of Marysville (along the s side of Dry Creek, n of the poor dirt road, about 1 mi e of Scott Forbes Road (Long Bar Road)); Dry Creek 121 Comment
  JEPS94941  Pellaea mucronata var. mucronata Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7733 Yuba along s side of creek about 1 mi below Scott Forbes Road (Long Bar Road) (n of the poor dirt road, about 17 mi e of Marysville); Dry Creek 121 Comment
  JEPS95413  Castilleja tenuis Lowell Ahart 1994-6-27 7377 Yuba 4 mi NE of Strawberry Valley (near S side of Schwartz Meadow, E side of La Porte Road) 1219 Comment
  JEPS95415  Carex echinata subsp. echinata Lowell Ahart 1994-6-27 7385 Yuba 4 mi NE of Strawberry Valley (N of the dirt county road from La Porte Road to the Poverty Hill Mine, E of Schwartz Meadow) 1219 Comment
  JEPS95799  Polygonum persicaria Lowell Ahart 1999-9-17 8242 Yuba south of Woodruff Lane; just east of Mathews Road; east of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  JEPS95800  Sagittaria latifolia var. obtusa Lowell Ahart 1999-9-17 8259 Yuba Sam Shintaffer Farm; about 1/8 mile southeast of the intersection of Ellis Avenue and Jack Slough Road; about 4 miles (air) northeast of Marysville 21 Comment
  JEPS98436  Veronica anagallis-aquatica Lowell Ahart 2000-5-25 8397 Yuba 6 air mi S of Smartville (bottom of a deep wash, a N branch of Dry Creek, 2 mi N of intersection of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  JEPS98568  Holozonia filipes Lowell Ahart 2000-6-11 8463 Yuba 6 mi (air) S of Smartville (bottom of a deep wash, a N branch of Dry Creek, 2 mi N of int. of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  JEPS98574  Scutellaria bolanderi subsp. bolanderi Lowell Ahart 2000-6-11 8472 Yuba 8 mi (air) S of Smartville (E side of a small wash, W of Smartville Road, about 1/8 mi SW of int. with Waldo Road) 99 Comment
  RSA715478  Cerastium glomeratum L. Ahart 2005-3-11 11605 Yuba West of a large rock outcrop, about 1/2 mile W of Marysville Road, about 1/2 mile N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile N of Loma Rica Road, about 5 miles (air) NE of Loma Rica. 386 Comment
  RSA726412  Navarretia tagetina L. Ahart 2007-5-12 13808 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  RSA726414  Gastridium phleoides L. Ahart 2007-5-12 13827 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  RSA726803  Cyperus eragrostis L. Ahart 2007-6-30 14229 Yuba About 13 miles (air) northeast of Marysville. 30 Comment
  SEINET10717829  Eragrostis Lowell Ahart 2007-11-13 Ahart 14599 Yuba T13N, R6E, southwest 1/4 Section 19. On the west side of Camp Far West Road, at the north edge of the town of Sheridan. 35 Comment
  SEINET10781222  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2011-6-7 Ahart 17387 Yuba T16N, R6E, northeast 1/4 Section 30. Normal size plants, on good soil, bottom of a depression at the base of cliffs, to the north is a huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bark Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. Riparian Woodland. 66 Comment
  CAS-BOT-BC153601  Erythranthe moniliformis Lowell Ahart 1980-8-12 2547 Yuba Along Slate Creek 1250 Comment
  CAS-BOT-BC451165  Agrimonia gryposepala Lowell Ahart 1977-7-31 s.n. Yuba Aount 1 mile south of Challenge 700 Comment
  CDA2649  Heteranthera limosa L. Ahart 1999-9-17 8240 Yuba South of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer s rice dryer, about 5 miles (air) northeast of Marysville. Comment
  SEINET10474301  Madia elegans subsp. vernalis Lowell Ahart, Peter Ahart 1983-8-10 Ahart 4274 Yuba Along Peterson Rd, ca. 5 mi e of Challenge. Yellow Pine Forest; 1000 m. 1000 Comment
  SEINET13710836  Leersia oryzoides Lowell William Ahart, Lowell William Ahart 1999-1 8239 Yuba 5 Mi NE of Marysville Comment



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