Search Results — 2000 specimen records retrieved (1791 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/consortium/).
 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-BC105030  Quercus X morehus Lowell Ahart 1976-7-15 s.n. Butte Near edge of North Honcut Creek, 2 miles N and 3 miles E of Honcut 200 Comment
  CAS-BOT-BC106984  Salix lasiolepis Lowell Ahart 1987-4-30 5492 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
  CAS-BOT-BC106985  Salix lasiolepis Lowell Ahart 1987-4-30 5490 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
  CAS-BOT-BC112443  Isolepis cernua Lowell Ahart 1984-5-12 4605 Butte Peter Ahart Ranch, About 2 mi N and 1/2 mi E of Honcut, about 12 mi S of Oroville. Comment
  CAS-BOT-BC113370  Eleocharis engelmannii Lowell Ahart 1979-6-2 s.n. Butte Peter Ahart Ranch, Honcut 45 Comment
  CAS-BOT-BC127337  Agrostis exarata Lowell Ahart 1977-7-8 1522 Butte Peter Ahart Ranch, Honcut. On the edge of North Honcut Creek. 50 Comment
  CAS-BOT-BC131515  Ericameria arborescens Lowell Ahart 1976-10-13 s.n. Butte 0.25 mile west of Pinkard Creek which is about 2 miles northwest of The Sly Creek Reservoir Comment
  CAS-BOT-BC132077  Allium peninsulare var. peninsulare Lowell Ahart 1985-5-15 5003 Butte 1/8 mile east of the dirt road, about 1 1/2 miles north-east of Concow Res. 800 Comment
  CAS-BOT-BC137000  Cercocarpus betuloides var. betuloides Lowell Ahart 1961-3-16 s.n. Butte Salmon Hole, Chico 300 Comment
  CAS-BOT-BC137939  Alopecurus saccatus Lowell Ahart 1982-5-30 3429 Butte Sierra Nevada. Peter Ahart Ranch, ca. 2.5 mile north and 1/8 mile east of Honcut. 50 Comment
  CAS-BOT-BC137940  Alopecurus saccatus Lowell Ahart 1980-5-10 2236 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CAS-BOT-BC146865  Rosa rubiginosa Lowell Ahart 1988-4-30 5972 Butte East of North Honcut Creek, on the Joie Osgood Ranch, about 1 1/2 miles north and 3 mile east of Honcut, about 12 miles southeast of Oroville 60 Comment
  CAS-BOT-BC156607  Rubus bifrons Lowell Ahart 1987-6-9 5736 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 274 Comment
  CAS-BOT-BC163657  Clarkia purpurea subsp. quadrivulnera Lowell Ahart 1985-5-15 4978 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-BC164523  Clarkia gracilis subsp. albicaulis Lowell Ahart 1987-5-9 5605 Butte Near the bridge across the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 304 Comment
  CAS-BOT-BC165438  Clarkia unguiculata Lowell Ahart 1989-5-31 6333 Butte North of the end of Truex Road, near Lake Oroville, about 1/4 mile north-west of the West Branch Bridge across Lake Croville 304 Comment
  CAS-BOT-BC171883  Clarkia gracilis subsp. gracilis Lowell Ahart 1979-4-28 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC172670  Atriplex lentiformis Lowell Ahart 1981-11-6 3217 Butte Gray Lodge, south-west of Gridley 35 Comment
  CAS-BOT-BC184180  Vulpia microstachys var. pauciflora Lowell Ahart 1984-6-10 4714 Butte About 2 miles south-west of the Forbestown Diversion Dam, North-east of Forbestown 700 Comment
  CAS-BOT-BC184700  Vulpia myuros subsp. megalura Lowell Ahart 1990-9-11 6410 Butte Below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/8 mile north-west of the Enterprise Bridge across Lake Oroville 289 Comment
  CAS-BOT-BC197095  Echinochloa crus-galli Lowell Ahart 1977-7-19 s.n. Butte Peter Ahart Ranch. Honcut Comment
  CAS-BOT-BC201743  Deschampsia elongata Lowell Ahart 1977-6-16 s.n. Butte Peter Ahart Ranch, Honcut. On the banks of North Honcut Creek 50 Comment
  CAS-BOT-BC201750  Deschampsia elongata Lowell Ahart 1983-6-21 4073 Butte Along Bloomer Hill Road, about 3/4 mile west of the Oroville Quincy Highway, about 15 miles north-east of Oroville 425 Comment
  CAS-BOT-BC202594  Aesculus californica Lowell Ahart 1985-6-17 5045 Butte Near the dirt road on Fields Ridge, about 4 miles south-east of Feather Falls 762 Comment
  CAS-BOT-BC21749  Achillea millefolium Lowell Ahart 1983-7-29 4225 Butte About 1/4 mile west of Milsap Bar, about 25 miles north-east of Oroville 500 Comment
  CAS-BOT-BC224423  Cuscuta californica Lowell Ahart 1983-9-19 4455 Butte About 1/8 mile south of the Gray Lodge Waterfowl Management Area Headquarters, about 12 miles south-west of Gridley 35 Comment
  CAS-BOT-BC22964  Agoseris heterophylla Lowell Ahart 1982-6-4 3542 Butte 1 1/2 miles east of Camp 18, about 8 miles east of Feather Falls 1000 Comment
  CAS-BOT-BC237824  Keckiella lemmonii Lowell Ahart 1980-9-10 2644 Butte 7 miles east of Milsap Bar 1200 Comment
  CAS-BOT-BC239962  Scribneria bolanderi Lowell Ahart 1985-5-15 4971 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-BC240693  Lonicera interrupta Lowell Ahart 1989-5-29 6306 Butte Along Robinson Mill Road, about 1 1/2 miles south of Forbestown Road 670 Comment
  CAS-BOT-BC244158  Poa sierrae Lowell Ahart 1983-5-28 4026 Butte About 2.5 miles N of the town of Feather Falls, along trail to overlook to Feather Falls 600 Comment
  CAS-BOT-BC249117  Castilleja affinis Ahart; Jokerst 1985-5-10 4947 Butte Along the east branch of Potter Ravine, about 2 1/4 miles north of Oroville Dam 350 Comment
  CAS-BOT-BC249118  Castilleja affinis Lowell Ahart 1989-5-10 6222 Butte Near Lake Oroville, about 1/10 mile north-west of the West Branch Bridge across Lake Oroville 289 Comment
  CAS-BOT-BC250702  Phalaris paradoxa Lowell Ahart 1989-5-23 6255 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-BC260095  Nassella pulchra Lowell Ahart 1977-5-20 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC271205  Lolium temulentum Lowell Ahart 1979-5-12 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC273947  Leptochloa fusca subsp. fascicularis Lowell Ahart 1986-11-9 5456 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-BC273948  Leptochloa fusca subsp. fascicularis Lowell Ahart 1983-10-11 3858 Butte West of the check-in station, Gray Lodge, about 12 mi. SW of Gridley 35 Comment
  CAS-BOT-BC281299  Melica harfordii Lowell Ahart 1984-6-10 4713 Butte Along the Forbestown Diversion Dam, about 2 miles SW of the Forbestown Diversion Dam, NE of Forbestown 700 Comment
  CAS-BOT-BC282857  Hainardia cylindrica Lowell Ahart 1974-6-3 s.n. Butte Peter Ahart Ranch, Honcut 45 Comment
  CAS-BOT-BC284987  Hordeum depressum Lowell Ahart 1981-5-16 2807 Butte Gray Lodge Waterfowl Management Area, 11 mi. SW of Gridley 35 Comment
  CAS-BOT-BC308148  Eriophyllum lanatum var. grandiflorum Lowell Ahart 1987-5-22 5666 Butte About 1/4 mile southeast of Lumpkin Ridge Road about 1 1/2 miles east of Camp 18 about 8 miles north-east of Feather Falls 1280 Comment
  CAS-BOT-BC340982  Robinia pseudoacacia Lowell Ahart 1968-4-20 s.n. Butte Peter Ahart Ranch, Honcut 45 Comment
  CAS-BOT-BC348319  Micropus californicus Lowell Ahart 1980-5-4 2168 Butte Thermalito 65 Comment
  CAS-BOT-BC389012  Silene laciniata subsp. californica Lowell Ahart 1989-5-29 6313 Butte Along the road to the Forbestown Reservoir, about 1/2 mile south-west of the Forbestown Reservoir, about 4 miles north-east of Forbestown 548 Comment
  CAS-BOT-BC401856  Corydalis caseana subsp. caseana Lowell Ahart 1987-10-17 5916 Butte Along the East Fork of Last Chance Creek, about 1/2 mile north-west of Jones Meadow 1676 Comment
  CAS-BOT-BC409926  Arceuthobium campylopodum Lowell Ahart 1988-6-29 6106 Butte at the inteersection of Bean Creek Road and the road to the Andy Smith Ranch, about 1.5 miles SE of Little Bald Rock 914 Comment
  CAS-BOT-BC428992  Micranthes fragosa Lowell Ahart 1980-3-26 2067 Butte Near Hurleton. 600 Comment
  CAS-BOT-BC436858  Saxifraga Lowell Ahart 1975-3-18 s.n. Butte Peter Ahart Ranch, Honcut 36 Comment
  CAS-BOT-BC59925  Rhamnus ilicifolia Lowell Ahart 1980-5-17 2299 Butte 1/2 mi. se. of Hurleton. 600 Comment
  CAS-BOT-BC61870  Isoetes nuttallii Lowell Ahart 1983-6-12 4046 Butte 7 miles south-west of Feather Falls, about 1 mile south of Crystal Hill, near Oregon Gulch, near Lake Oroville 425 Comment
  CAS-BOT-BC61879  Isoetes nuttallii Lowell Ahart 1975-5-3 s.n. Butte Valley Grassland, Peter Ahart Ranch, Honcut Comment
  CAS-BOT-BC65919  Aspidotis densa Lowell Ahart 1982-6-15 3566 Butte about 1 1/2 miles east of Camp 18, about 8 miles east of Feather Falls 1000 Comment
  CAS-BOT-BC71866  Polypodium californicum Lowell Ahart 1983-3-28 3911 Butte Woodleaf Creek, above the road, about 3/8 mile southwest of the Forbestown Res., about 4 miles northeast of Forbestown 450 Comment
  CAS-BOT-BC77687  Ficus carica Lowell Ahart 1987-8-8 5857 Butte About 2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville 67 Comment
  CAS-BOT-BC83268  Myosurus minimus Lowell Ahart 1985-4-21 4880 Butte Near Wyandotte Creek, south of Central House Road, northwest of Honcut, about 12 miles south of Oroville. 35 Comment
  CAS-BOT-BC86635  Quercus douglasii Lowell Ahart 1981-7-7 2919 Butte About 0.5 mi W of the Oroville Forbestown Road on the Black Bart Road, W of Forbestown 700 Comment
  CDA1914  Cortaderia selloana L. Ahart 2000-9-2 8678 Butte About 4 miles (air) southwest of Oroville; about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area. 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
  CDA23953  Claytonia parviflora subsp. parviflora L. Ahart, P. Maslin, J. Dittes 2005-3-17 11651 Butte Big Chico Creek Ecological Reserve. 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. Comment
  CDA27702  Prosopis glandulosa var. torreyana L. Ahart, M. G. Womack 2006-8-29 13240 Butte Near pump 24, about 1/4 mile southwest of Parking Lot 9, about 1 1/2 miles east of Pennington Road, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area). Comment
  CDA31575  Bromus carinatus var. carinatus L. Ahart 2006-7-16 12976 Butte About 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows, west edge of a large wet meadow and bog, about 20 yards east of the poor dirt road, and 100 yards south of the cabin Comment
  CDA31949  Bromus sterilis L. Ahart 2009-4-26 15614 Butte East edge of a small open meadow, about 150 yards southwest 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 Comment
  CDA31998  Trifolium glomeratum L. Ahart 2008-5-3 15777 Butte On the north side of Ten Mile House Road, 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. Comment
  CDA32009  Panicum acuminatum var. acuminatum L. Ahart 2009-6-3 15832 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 mile (air) west of Highway 32, 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
  CDA32106  Conyza canadensis L. Ahart 2008-11-4 15396 Butte Below the high water line of Lake Oroville, about one mile southeast of the large parking area on the north end of Oroville Dam, about 5 miles (air) northeast of Oroville. Comment
  CDA34169  Ranunculus muricatus L. Ahart 2009-4-3 15538 Butte Chico: East of the Cedar grove Parking Area in Lower Bidwell Park. Comment
  CDA34559  Pittosporum tobira L. Ahart, John Dittes, Josephine Guardino 2008-11-8 15421 Butte On the south side of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CDA34623  Avena fatua L. Ahart 2009-4-17 15553 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. Comment
  CDA34718  Madia subspicata L. Ahart 2010-6-1 16751 Butte South side of Guardian's Trail, about 100 yards east of the end of Centennial Avenue, Upper Bidwell Park, about 1/2 mile east of Chico Canyon Road. Comment
  CDA34720  Plagiobothrys glyptocarpus var. glyptocarpus L. Ahart 2010-6-9 16785 Butte About 100 yards west of the fence, about 1/2 mile south of the improved parking area and Cherokee Road, North Table Mountain, about 5 1/2 miles (air) northeast of Oroville. Comment
  CDA38763  Thalictrum fendleri var. polycarpum L. Ahart 2012-4-3 17946 -A Butte On the south side of the path, near the sign, southwest of intersection of Vallombrosa Avenue and Manzanita Avenue, Lower Bidwell Park, Chico. Comment
  CDA3959  Rosa eglanteria L. Ahart 2002-6-2 9677 Butte South of the intersection of Black Bart Road and Forbestown Road, about 3 miles (air) southwest of Forbestown. Comment
  CDA40109  Navarretia tagetina L. Ahart 2005-5-28 11816 Butte South edge of Cox Lane, about 2 miles east of Palermo Honcut Highway, about 10 miles (air) southeast of Oroville. Comment
  CDA42847  Hypericum anagalloides L. Ahart 2011-7-9 17575 Butte Southeast edge of a large open bare granite area, about 3/8 mile northeast of Little Bald Rock, about 2 miles (air) southeast of Brush Creek, about 15 miles (air) northeast 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
  CDA42903  Melissa officinalis L. Ahart 2012-6-14 18195 Butte Dry high bank on the north side of Big Chico Creek, west of the foot bridge across Big Chico Creek, about 100 yards east of Mangrove Avenue, Annie's Glen, Lower Bidwell Park, Chico. Comment
  CDA42943  Lycopus americanus L. Ahart 2012-10-2 18511 Butte In the marshy area on the north side of Big Chico Creek, south of Table 34, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CDA42962  Calycadenia multiglandulosa L. Ahart 2013-7-1 18817 Butte About 150 yards east of the intersection of Forbestown Road and Black Bart Road, about 3 1/4 miles (air) southwest of Forbestown. Comment
  CDA5391  Torilis arvensis subsp. purpurea L. Ahart 1998-7-1 8018 Butte Southwest of the lone oak tree, west of the cow chute on the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  CDA5711  Mentha pulegium L. Ahart 2000-7-17 8593 Butte Peter Ahart Ranch, about 1 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. Comment
  CDA6500  Veronica anagallis-aquatica L. Ahart 2004-10-3 11423 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. Comment
  CHSC100472  Rosmarinus officinalis Lowell Ahart; John Dittes, Josephine Guardino 2008-11-8 15436 Butte On the south side of the gravel road and Big Chico Creek, about 30 yards east of the end of Chico Canyon Road, Upper Bidwell Park, Chico. 68 Comment
  CHSC100480  Polanisia dodecandra subsp. trachysperma Lowell Ahart; John Dittes, Josephine Guardino 2008-11-8 15437 Butte On the bottom of Lindo Channel, about 100 yards west of the diversion structure, north of Hooker Oak, Upper Bidwell Park, Chico. 68 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
  CHSC101094  Thysanocarpus curvipes Lowell Ahart; John Dittes 2009-3-20 15500 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
  CHSC101121  Torilis arvensis subsp. purpurea Lowell Ahart 2009-5-23 15725 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
  CHSC101132  Leptosiphon ciliatus Lowell Ahart 2009-5-15 15678 Butte About 20 yards east 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. 235 Comment
  CHSC101150  Ceanothus integerrimus Lowell Ahart 2009-5-15 15693 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
  CHSC101168  Heterocodon rariflorum Lowell Ahart 2009-5-15 15699 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
  CHSC101257  Galium aparine Lowell Ahart 2009-4-17 15548 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
  CHSC101271  Claytonia perfoliata subsp. perfoliata Lowell Ahart 2009-4-3 15534 Butte Along the north margin of the paved road, north of the Cedar Grove parking area in Lower Bidwell Park, Chico. 67 Comment
  CHSC101283  Erodium botrys Lowell Ahart 2009-4-17 15561 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
  CHSC101307  Leptosiphon filipes Lowell Ahart 2009-4-22 15586 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
  CHSC101313  Petrorhagia dubia Lowell Ahart 2009-4-22 15573 Butte West side of Guardians Trail, south side of the 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
  CHSC101334  Plantago erecta Lowell Ahart 2009-4-22 15584 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
  CHSC101668  Nassella pulchra Lowell Ahart 2009-4-26 15617 Butte In a small open meadow, about 150 yards southwest 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 norhteast of Chico. 286 Comment
  CHSC101678  Trifolium microcephalum Lowell Ahart 2009-4-26 15628 Butte South of a small drainage, about 120 yards southwest 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 norhteast of Chico. 286 Comment
  CHSC101753  Drymocallis glandulosa var. glandulosa Lowell Ahart 2009-5-23 15739 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
  CHSC101801  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
  CHSC101819  Rubus armeniacus 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
  CHSC102402  Cordylanthus pilosus subsp. hansenii Lowell Ahart 2009-6-30 15973 Butte On the west side of Ten Mile House Road, about 30 yards east of Big Chico Creek, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 234 Comment
  CHSC102502  Elymus glaucus subsp. jepsonii Lowell Ahart 2009-5-30 15795 Butte 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 Highway 32, about 10 miles northeast of Chico. 269 Comment
  CHSC102625  Symphyotrichum bracteolatum Lowell Ahart 2009-7-9 16026 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
  CHSC102724  Cyperus niger Lowell Ahart 2009-6-30 15924 Butte Drainages in meadow 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
  CHSC102735  Cordylanthus pilosus subsp. hansenii Lowell Ahart 2009-8-3 16253 Butte On the west side of Ten Mile House Road, jabout 30 yards east of Big Chico Creek, 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. 234 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
  CHSC102836  Verbascum blattaria Lowell Ahart 2009-6-19 15933 Butte West of the trail 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
  CHSC102844  Verbascum thapsus Lowell Ahart 2009-6-30 15981 Butte About 45 yards southeast of the gate, about 35 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
  CHSC102964  Setaria viridis Lowell Ahart 2009-7-9 16021 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
  CHSC102990  Amaranthus albus Lowell Ahart 2009-8-13 16273 Butte In the channel about about 100 yards east of the diversion structure that controls Mud Creek and Lindo Channel, northeast of Hooker Oak, Upper Bidwell Park, Chico. 68 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
  CHSC103438  Muhlenbergia rigens Lowell Ahart 2009-11-19 16541 Butte East edge of the south part of a meadow, 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. 215 Comment
  CHSC103667  Lithophragma bolanderi Lowell Ahart 2010-4-30 16603 Butte Steep north slope, below rim and above cliffs, on the north side of a trail, west of disk golf area, on a ridge about 350 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 353 Comment
  CHSC103677  Koeleria phleoides Lowell Ahart 2010-4-30 16585 Butte Area of erosion control, disk golf area, on a ridge about 200 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 369 Comment
  CHSC103689  Microsteris gracilis Lowell Ahart 2010-4-30 16599 Butte Steep north slope, below rim and above cliffs, on the north side of a trail, west of disk golf area, on a ridge about 350 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 353 Comment
  CHSC103723  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2010-5-14 16652 Butte On the west side of the old Humboldt Road, Disc Golf Area, about 150 yards north 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
  CHSC103730  Hedypnois cretica Lowell Ahart 2010-5-16 16680 Butte About 1/4 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 378 Comment
  CHSC103752  Trifolium variegatum Lowell Ahart 2010-5-22 16716 Butte About 140 yards east of the fence, about 240 yards east of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 392 Comment
  CHSC103937  Psilocarphus brevissimus var. brevissimus Lowell Ahart 2010-5-22 16723 A 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
  CHSC103945  Plantago coronopus Lowell Ahart 2010-5-22 16713 Butte About 140 yards east of the fence, about 240 yards east of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 392 Comment
  CHSC103959  Calandrinia ciliata Lowell Ahart 2010-5-14 16659 A Butte Area of erosion control, Disc Golf Area, about 100 yards west of the entrance to the Disc Golf Area, about 120 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 372 Comment
  CHSC103963  Minuartia douglasii Lowell Ahart 2010-5-7 16623 Butte On the south side of a trail, west of disk golf area, on a ridge about 350 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 353 Comment
  CHSC103981  Poa secunda subsp. secunda Lowell Ahart 2010-5-14 16670 Butte Open rocky flats near south park fence, about 1/4 mile west of the entrance to the Disc Golf Area, west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 363 Comment
  CHSC103995  Clarkia purpurea subsp. quadrivulnera Lowell Ahart 2010-5-14 16669 Butte Near south park fence, about 1/4 mile west of the entrance to the Disc Golf Area, west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 363 Comment
  CHSC104816  Achillea millefolium Lowell Ahart 2010-6-12 16792 Butte On the north side of Ten Mile House Road, about 1/2 mile (air) from Highway 32, about 9 miles (air) northeast of Chico. 349 Comment
  CHSC104843  Limnanthes douglasii subsp. nivea Lowell Ahart 2010-6-9 16788 Butte Open field about 100 yards west of the fence, about 1/2 mile south of the improved parking area and Cherokee Road, North Table Mountain, about 5 1/2 miles (air) northeast of Oroville. 398 Comment
  CHSC10544  Nicotiana glauca Lowell Ahart 1962-4-10 Butte Near Gridley. 36 Comment
  CHSC10549  Aphyllon purpureum Lowell Ahart 1967-3-30 Butte Peter Ahart Ranch, Honcut. 42 Comment
  CHSC105516  Polygonum minimum Lowell Ahart 2010-9-28 17267 Butte On damp dark soil, along the east side of Big Kimshew Creek, about 100 yards east of the poor dirt road, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrood Reservoir. 1886 Comment
  CHSC10559  Cyperus eragrostis Lowell Ahart 1969-9-24 34 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC105799  Trisetum canescens Lowell Ahart 2010-9-28 17256 Butte In the shade of Sierra Lodgepole Pine, about 5 yards west of Big Kimshew Creek, meadow edge, about 100 yards east of a poor dirt road, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1886 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
  CHSC106886  Matricaria discoidea Lowell Ahart 2011-5-1 17334 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. 42 Comment
  CHSC107246  Polygonum aviculare Lowell Ahart 2011-6-3 17364 Butte Wood chipped planter area between Bidwell Mansion parking area and Gateway Science Museum, Chico. 60 Comment
  CHSC10738  Lepidium nitidum Lowell Ahart 1966-3-15 Butte Peter Ahart Ranch, Honcut. 42 Comment
  CHSC107598  Carex cyrtostachya Lowell Ahart 2011-7-9 17574 Butte Southeast edge of a large open bare granite area, about 3/8 mile east of Little Bald Rock, about 2 miles (air) southeast of Brush Creek, about 15 miles (air) northeast of Oroville. 974 Comment
  CHSC107600  Juncus triformis Lowell Ahart 2011-7-9 17563 Butte Open area of almost bare rock about 1/4 mile east of Little Bald Rock, about 2 miles (air) southeast of Brush Creek, about 15 miles (air) northeast of Oroville. 1009 Comment
  CHSC10770  Erysimum capitatum var. capitatum Lowell Ahart 1970-5-19 Butte Along Deadwood Road, off Highway 70. 914 Comment
  CHSC108142  Ammannia coccinea Lowell Ahart 2011-10-29 17719 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
  CHSC108791  Magnolia Lowell Ahart; John Dittes, Josephine Guardino 2012-4-6 17810 Butte On the north side of Big Chico Creek, Lost Park in Bidwell Park, city of Chico. 60 Comment
  CHSC108821  Senecio vulgaris Lowell Ahart 2012-4-9 17839 Butte On the high south cliff edge of Big Chico Creek, northwest of South Rim Trail, south part of Upper Bidwell Park, about 2 1/4 miles (air) northeast of Chico. 161 Comment
  CHSC108832  Camissonia contorta Lowell Ahart 2012-4-17 17882 Butte Bare areas where cobbles were removed for Oroville Dam, 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. 35 Comment
  CHSC108850  Garrya fremontii Lowell Ahart 2012-3-2 17759 -A Butte About 200 yards north of Ten Mile House Road, about 200 yards west of Highway 32, about 9 miles northeast of Chico. 422 Comment
  CHSC108868  Micranthes nidifica Lowell Ahart 2012-3-23 17779 Butte In a small meadow opening in brush, about 100 yards south of the intersection of Guardian Ten Mile House Road, about 1/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. 437 Comment
  CHSC109002  Sherardia arvensis Lowell Ahart; Linnea Hanson, Kaline Le Coq, Josephine Guardino 2012-4-27 17917 Butte On the north side of the path,near the intersection of Centennial Avenue and Manzanita Avenue, Lower Bidwell Park, Chico. 80 Comment
  CHSC109085  Rosa banksiae Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17869 Butte Between the edge of the paved road and the back of a home, east of the Deer Pen, between Table 12 and 13 , Lower Bidwell Park, Chico. 65 Comment
  CHSC109091  Lupinus pachylobus Lowell Ahart 2012-4-20 17890 Butte North edge of the trail, about 50 yards east of Big Chico Creek, about 100 yards west of Ten Mile House Road, about 3/4 mile west of Highway 32, about 9 miles northeast of Chico, south part of Upper Bidwell Park. 202 Comment
  CHSC109106  Arctostaphylos viscida subsp. viscida Lowell Ahart 2012-3-2 17760 Butte About 200 yards north of Ten Mile House Road, about 200 yards west of Highway 32, about 9 miles northeast of Chico. 422 Comment
  CHSC109110  Arctostaphylos viscida subsp. viscida Lowell Ahart 2012-2-22 17752 Butte On the high bank, on the south side of Ten Miles House Road, about 1/2 miles west of Highway 32, about 9 miles (air) northeast of Chico. 335 Comment
  CHSC109135  Boechera breweri subsp. shastaensis Lowell Ahart 2012-2-22 17744 Butte On the north side of a very large basalt outcrop, about 400 yards east of Big Chico Creek, about 100 yards west of South Rim Trail, about 5/8 mile west of Highway 32, about 8 3/4 miles (air) northeast of Chico. 254 Comment
  CHSC109592  Medicago arabica Lowell Ahart 2012-5-14 18056 Butte Just west of Table 12, south of Big Chico Creek, north of the paved road, Lower Bidwell Park, Chico. 74 Comment
  CHSC109606  Bromus hordeaceus Lowell Ahart 2012-5-14 18046 Butte A little east of Table 7, on the south side of Big Chico Creek, north of the paved road, northeast of Cedar Grove, Lower Bidwell Park, Chico. 70 Comment
  CHSC109610  Castilleja lacera Lowell Ahart 2012-5-20 18100 Butte On the north side of the Humboldt Trail, about 50 yards northwest of the poor dirt road south of Highway 32, southeast part of Upper Bidwell Park, northeast of Chico. 428 Comment
  CHSC109624  Platanus racemosa Lowell Ahart 2012-5-17 18074 Butte On the west side of a horse trail, about 40 yards north of Big Chico Creek, south of the southwest corner of the old walnut orchard, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. 76 Comment
  CHSC110031  Eucalyptus Lowell Ahart 2012-10-20 18484 Butte On the south side of the paved park road, about 50 yards east of the east side of the Deep Pen, east of the intersection of Chico Canyon Road (E8th Street) and Forest Avenue, Lower Bidwell Park, Chico. 73 Comment
  CHSC110391  Urtica dioica subsp. holosericea Lowell Ahart 2012-9-28 18464 Butte About 30 yeards north of Big Chico Creek, about 200 yards east of the east end of Sycamore Pool in Big Chico Creek, Lower Bidwell Park, Chico. 64 Comment
  CHSC110977  Celtis sinensis Lowell Ahart; Susan Bazell, Josephine Guardino, Wes Dempsey 2012-6-28 18231 Butte On the northeast side of Sycamore Pool, Lower Bidwell Park, Chico. 61 Comment
  CHSC110989  Pyrus calleryana Lowell Ahart; L. Hanson, S. Bazell, J. Guardino 2012-5-17 18073 Butte On the west side of a horse trail, about 50 ft. south of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. 76 Comment
  CHSC11102  Sidalcea hartwegii Lowell Ahart 1968-5-8 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC111138  Aegilops triuncialis Lowell Ahart 2012-6-5 18155 Butte Along the poor dirt road, on the south side of Beatson Hollow, about 3/4 mile northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 6 miles (air) north of Oroville. 298 Comment
  CHSC111156  Madia subspicata Lowell Ahart 2012-6-9 18178 Butte On the east side of Guardian Trail, about one mile south of Tem Mile House Road, about 1/8 miles west of Highway 32, Upper Bidwell Park, about 8 miles northeast of Chico. 370 Comment
  CHSC111172  Rumex conglomeratus Lowell Ahart 2013-6-18 18805 Butte About 60 yards west of Parking Lot 14, Gray Lodge Wildlife Management Area, about 7 miles (air) southwest of Gridley. 19 Comment
  CHSC111374  Ranunculus muricatus Lowell Ahart 2012-5-2 17967 Butte On dark clay soil, on the bottom of a depression, under the Government Pole Line, about 100 yards west of the Easter Cross Parking Lot, Upper Bidwell Park, about 1 mile east of Chico. 90 Comment
  CHSC111728  Epilobium torreyi Lowell Ahart; Doug Upton 2012-6-15 18198 Butte On the sides of the small stream, on the bottom of Beatson Hollow, about 1/4 miles northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 6 miles (air) north of Oroville. 273 Comment
  CHSC111739  Salix exigua var. hindsiana Lowell Ahart 2012-6-28 18237 Butte On the north side of Big Chico Creek, east of Sycamore Pool, Lower Bidwell Park, Chico. 61 Comment
  CHSC111968  Odontostomum hartwegii Lowell Ahart 2012-6-2 18140 Butte Along a small stream, west of a poor dirt road, about 100 yards north of Truex Road, west of the intersection of Truex Road and Trevor Road, about 1/8 mile northwest of the West Branch Bridge across Lake Oroville. 286 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
  CHSC112103  Carduus pycnocephalus subsp. pycnocephalus Lowell Ahart 2012-6-5 18172 Butte Along the poor dirt road, on the south side of Beatson Hollow, about 3/4 mile northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 6 miles (air) north of Oroville. 295 Comment
  CHSC112247  Polygonum aviculare subsp. aviculare Lowell Ahart 2013-4-29 18658 Butte In corral at the barn, about 1/4 mile north of the Honcut Cemetary, about 3 1/4 miles (air) northeast of Honcut. 47 Comment
  CHSC112329  Juncus exiguus Lowell Ahart 2013-7-9 18830 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
  CHSC112599  Dopatrium junceum Lowell Ahart 2013-9-20 19058 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
  CHSC112690  Lathyrus latifolius Lowell Ahart 2013-7-1 18814 Butte Meadow, 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
  CHSC112716  Gayophytum humile Lowell Ahart 2013-10-26 19214 Butte On the south side of Philbrook Creek, below the high water line (strand) of Philbrook Reservoir. 1681 Comment
  CHSC112743  Solanum americanum Lowell Ahart 2013-11-13 19248 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
  CHSC113104  Amaranthus albus Lowell Ahart 2013-11-18 19280 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
  CHSC113126  Lupinus nanus var. vallicola Lowell Ahart 2013-11-18 19283 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
  CHSC113159  Veronica peregrina subsp. xalapensis Lowell Ahart 2013-11-17 19263 Butte Along the sides of McCabe Creek, below the high water line of Lake Oroville, about 5/8 of a mile southwest of the Enterprise Bridge across Lake Oroville. 245 Comment
  CHSC113163  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. 244 Comment
  CHSC113195  Physalis lancifolia Lowell Ahart 2013-11-29 19295 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
  CHSC113215  Callitriche heterophylla var. heterophylla Lowell Ahart 2014-4-26 19415 Butte Sides of a cleaned ditch, on the south side of Butte City Highway (Highway 162), collected from the railroad to the east about 200 yards, east of the Rice Experimental Station. 30 Comment
  CHSC113223  Githopsis specularioides Lowell Ahart 2014-5-2 19434 Butte Along the trail, north side of Beatson Hollow, about 1 1/2 miles southwest of the Improved Parking Area and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 305 Comment
  CHSC113230  Isoetes nuttallii Lowell Ahart 2014-5-2 19426 A Butte On the north side of a small drainage, about one mile (air) northwest of the Improved Parking Area and Cherokee Road, North Table Mountain, about 8 miles (air) north of Oroville. 391 Comment
  CHSC113276  Festuca myuros var. hirsuta Lowell Ahart 2014-4-25 19404 Butte Sides of a cleaned ditch, on the west side of Richvale South Highway, south of the intersection of Richvale South Road and Richvale South Highway, Richvale. 30 Comment
  CHSC113288  Anthriscus caucalis Lowell Ahart 2014-4-9 19342 Butte Bottom of a drying pond, about 100 yards west of the parking area, west end of West Liberty Road, about one mile (air) south of Colusa Highway, about 7 miles (air) southwest of Gridley. 19 Comment
  CHSC113421  Carex laeviculmis Lowell Ahart 2014-7-2 19537 Butte 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
  CHSC113432  Juncus hemiendytus var. hemiendytus Lowell Ahart 2014-7-7 19581 Butte West of the bog, Coon Hollow, about 2 miles (air) north of Philbrook Reservoir. 1690 Comment
  CHSC113468  Aconitum columbianum subsp. columbianum Lowell Ahart 2014-7-13 19652 Butte West part of a large wet meadow (some bog), about 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC113478  Trifolium wormskioldii Lowell Ahart 2014-7-13 19651 Butte West part of a large wet meadow (some bog), about 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC113521  Cryptantha affinis Lowell Ahart 2014-7-7 19601 Butte On the south side of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1664 Comment
  CHSC11367  Marsilea vestita Lowell Ahart 1968-5-8 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC113920  Trifolium ciliolatum Lowell Ahart 2014-5-13 19464 Butte Along the sides of McCabe Creek, below the high water line of Lake Oroville, about 100 yards west of the poor parking area, about 30 yards east of McCabe Creek, about 11 miles (air) east of Oroville. 244 Comment
  CHSC113951  Carex vesicaria Lowell Ahart 2014-7-13 19666 Butte West part of a large wet meadow (some bog), about 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC113967  Cuscuta campestris Lowell Ahart 2014-11-24 19918 A Butte About 80 feet below the high water line of Lake Oroville, about 700 yards east of the second parking area, old Bidwell Bar Road, about one mile south of Oroville Quincy Highway, about 8 miles (air) northeast of Oroville 231 Comment
  CHSC114967  Castilleja exserta subsp. exserta Lowell Ahart 2015-4-1 20000 Butte Along Bear Valley Road, in Bear Valley, about 50 yards west of Bear Creek, about 6 miles south of Leesville, about 6 miles south of Highway 20. 395 Comment
  CHSC114977  Castilleja applegatei subsp. pinetorum Lowell Ahart 2015-4-13 20033 Butte On the north side of Rim Road, about 2-1/2 miles (air) north of Jarbo Gap, about 17 miles (air) north of Oroville. 830 Comment
  CHSC115007  Cotoneaster pannosus Lowell Ahart 2015-2-20 19934 Butte Above the retaining wall, just south of the railroad underpass, on the west side of Hountoon Street, about 50 yards north of Kitrick Avenue, Oroville. 68 Comment
  CHSC115192  Veronica arvensis Lowell Ahart 2015-4-27 20084 Butte On the north side of the dirt road, about 5/8 mile northwest of the iron gate of the dirt road, along Cherokee Road, Beatson Hollow, North Table Mountain, about 7 miles (air) north of Oroville. 304 Comment
  CHSC115336  Limosella acaulis Lowell Ahart 2015-4-24 20068 Butte Normal size plants, on damp bare soil, bottom of a large duck field. 19 Comment
  CHSC115344  Trifolium olivaceum Lowell Ahart 2015-4-11 20028 Butte About 3/4 mile northeast of the Honcut Cemetery, about 4 1/2 miles (air) northeast of Honcut, about 13 miles (air) southeast of Oroville. 71 Comment
  CHSC115358  Lupinus albifrons var. albifrons Lowell Ahart 2015-3-21 19957 Butte Steep east road cut, along Oregon Gulch Road, about one mile south of Oregon city, about 4 1/2 miles north of the intersection of Cherokee Road and Oregon Gulch Road, about 8 miles north of Oroville. 308 Comment
  CHSC115360  Castilleja affinis subsp. affinis Lowell Ahart 2015-3-21 19956 Butte Steep east road cut, along Oregon Gluch Road, about one mile south of Oregon City, about 4 1/2 miles north of the intersection of Cherokee Road and Oregon Gulch Road, about 8 miles north of Oroville. 308 Comment
  CHSC116003  Heliotropium europaeum Lowell Ahart 2015-10-9 20542 Butte West edge of Bull Hill Road, about 3/4 mile northwest of the intersection of Bull Hill Road, Skyway, and Humbug Road, about 4 miles (air) north of Inskip. 1697 Comment
  CHSC116017  Cyperus eragrostis Lowell Ahart 2015-10-20 20568 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
  CHSC116148  Erigeron canadensis Lowell Ahart 2015-11-7 20614 Butte Strand of Lake Oroville, on the east side of the old highway Alternate 40, about 1/8 mile south of the end of Alternate 40, Dark Canyon, about 4 miles (air) south of Highway 70, about 8 miles (air) southeast of Paradise. 240 Comment
  CHSC116154  Pseudognaphalium beneolens Lowell Ahart 2015-11-7 20624 Butte On the east side of the old highway Alternate 40, about 1/8 mile south of the end of Alternate 40, Dark Canyon, about 4 miles (air) south of Highway 70, about 8 miles (air) southeast of Paradise. 240 Comment
  CHSC116323  Trifolium Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-7-31 20413 Butte Along dirt road leading to the edge of Wilson Lake, 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. 1606 Comment
  CHSC116330  Persicaria lapathifolia Lowell Ahart 2015-10-16 20555 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
  CHSC116698  Plantago elongata Lowell Ahart 2016-5-15 20836 Butte On the west edge of North Honcut Creek, Peter Ahart Ranch, about 1 miles north and 2 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville. 36 Comment
  CHSC116708  Juncus capitatus Lowell Ahart 2016-5-15 20833 Butte On the very west edge of North Honcut Creek, Peter Ahart Ranch, about 1 1/4 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 45 Comment
  CHSC116984  Navarretia divaricata subsp. vividior Lowell Ahart 2016-6-4 20938 Butte On the west side of Ponderosa Way, about 1 mile (air) northwest of Sunset Hill, about 2 1/8 miles (air) northwest of Forbestown. 732 Comment
  CHSC116992  Sidalcea asprella subsp. asprella Lowell Ahart 2016-6-4 20933 Butte On the west side of Ponderosa Way, about 1 mile (air) northwest of Sunset Hill, about 2 1/8 miles (air) northwest of Forbestown. 732 Comment
  CHSC117002  Lomatium marginatum var. marginatum Lowell Ahart 2016-6-4 20931 Butte On the west side of Ponderosa Way, about 1 mile (air) northwest of Sunset Hill, about 2 1/8 miles (air) northwest of Forbestown. 732 Comment
  CHSC117401  Pilularia americana Lowell Ahart 2016-5-30 20882 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
  CHSC117419  Gratiola ebracteata Lowell Ahart 2016-5-30 20884 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
  CHSC117442  Mimulus guttatus Lowell Ahart 2016-5-24 20862 Butte On the bottom of a large drainage, about 50 yards north of the ditch, about 150 yards south of La Porte Road, 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
  CHSC12173  Draba verna var. aestivalis Lowell Ahart 1973-2-21 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC12180  Lithophragma parviflorum var. parviflorum Lowell Ahart 1969-4-8 Butte Table Mountain, Oroville. 396 Comment
  CHSC12406  Montia parvifolia Lowell Ahart 1973-5-31 Butte Near Little North Fork, Feather River. 1066 Comment
  CHSC12407  Aphanes occidentalis Lowell Ahart 1973-3-1 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC23377  Lessingia nemaclada Lowell Ahart 1975-9-4 977 Butte Along edge of Ponderosa Way two miles south-west of Feather Falls. 396 Comment
  CHSC26456  Panicum dichotomiflorum L. Ahart 1977-10-15 Butte Along edge of a swale. Peter Ahart Ranch, Honcut. Comment
  CHSC29994  Lathyrus angulatus L. Ahart 1980-4-28 2111 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC29999  Lomatium utriculatum L. Ahart 1980-4-21 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC31431  Rhynchospora capitellata L. Ahart 1980-9-10 2618 Butte Seeps, near Bean Creek Rd, se of Little Bald Rock, ne of Oroville. 1100 Comment
  CHSC31446  Deschampsia elongata L. Ahart 1980-9-10 2639 Butte Along the edge of the road, ca. 5 mi e of Millsap Bar, ca. 30 mi ne of Oroville. 1200 Comment
  CHSC31447  Lessingia nemaclada L. Ahart 1980-9-10 2643 Butte Along the edge of the rd ca. 7 mi e of Millsap Bar, ca. 32 mi ne of Oroville. 1200 Comment
  CHSC31456  Oxalis corniculata L. Ahart 1980-10-27 2689 Butte Near the garden area near our home, Peter Ahart Ranch, Honcut. 50 Comment
  CHSC31475  Paspalum urvillei L. Ahart 1980-7-29 2496 Butte Along the edge of a stream, near Hurleton Swedes Flat Rd, ca. 1 mi s of Forbestown Rd, near Hurleton. 600 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
  CHSC31586  Pseudognaphalium luteoalbum L. Ahart 1975-7-19 897 Butte Along edge of North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31594  Gnaphalium palustre L. Ahart 1972-6-21 115 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31599  Hedypnois cretica L. Ahart 1975-5-12 756 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31614  Eriophyllum lanatum var. grandiflorum L. Ahart 1977-5-20 1383 Butte Near North Honcut Creek. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC31619  Hesperevax acaulis var. acaulis L. Ahart 1974-4-24 429 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31621  Paspalum dilatatum L. Ahart 1977-9-20 1578 Butte Along the banks of North Honcut Creek. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC31638  Hypericum perforatum Lowell Ahart 1977-6-3 1406 Butte Peter Ahart Ranch, Honcut. Along the banks of North Honcut Creek. 50 Comment
  CHSC31664  Eleocharis bella L. Ahart 1980-9-8 2594 Butte Bottom of a small wash in one of the pasture fields, ca. 1.5 mi n and 1.5 mi e of Honcut. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC31669  Eleocharis pachycarpa L. Ahart 1974-6-24 503 Butte Along North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31670  Eleocharis quinqueflora L. Ahart 1973-5-24 229 Butte Along a small wash. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31683  Bolboschoenus glaucus L. Ahart 1972-6-20 113 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31838  Juncus bufonius var. congestus L. Ahart 1978-5-1 1682 Butte Peter Ahart Ranch, Honcut. Bottom of a small swale in a farmed field. 50 Comment
  CHSC31864  Lomatium caruifolium var. denticulatum L. Ahart 1979-5-12 1876 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC31869  Dopatrium junceum L. Ahart 1974-7-20 555 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31883  Epilobium cleistogamum L. Ahart 1978-6-8 1773 Butte Bottom of vernal pools and swales. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC31900  Hesperocnide tenella L. Ahart 1974-4-7 339 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC32118  Calochortus monophyllus L. Ahart 1970-4-5 42 Butte Along Robinson Mill Rd. 457 Comment
  CHSC32142  Cynoglossum grande L. Ahart 1975-4-1 731 Butte Trail head to Feather Falls near Feather Falls community. 487 Comment
  CHSC32152  Pilularia americana L. Ahart 1978-5-2 1712 Butte On top of Table Mt, e of parking area. Near Oroville. 400 Comment
  CHSC32585  Juncus kelloggii L. Ahart 1980-5-11 2240 Butte In a pasture field on the w side of the Pentz-Magalia Hwy, ca. 1/2 mi nw of Kunkle Reservoir, ca. 3 mi s of Paradise. 500 Comment
  CHSC33698  Claytonia parviflora subsp. parviflora L. Ahart 1981-4-9 2755 Butte On dry grassy soil on banks of North Honcut Creek, Peter Ahart Ranch, ca. 1 mi n and 3 mi e of Honcut. 50 Comment
  CHSC34060  Agrostis gigantea L. Ahart; M. S. Taylor, J. T. Howell 1981-8-15 3045 Butte N end of Snag Lake, ca. 10 mi n of Inskip. 1500 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
  CHSC34141  Plantago major L. Ahart 1981-9-27 3213 Butte Ca. 1/8 mi ne of jct of Lower Wyandotte Rd and Upper Palermo Rd, ca. 4 mi ne of Palermo. 80 Comment
  CHSC34151  Thelypteris nevadensis L. Ahart 1981-9-15 3154 Butte Along the sides of Pinkard Creek, ca. 1/2 mi n of the Lost Creek Reservoir. 1100 Comment
  CHSC34185  Stellaria crispa L. Ahart 1981-9-15 3165 Butte Along banks of French Creek, below the swamp and where the road forks, ca. 1 mi w of Sly Creek Reservoir. 1300 Comment
  CHSC34780  Bolboschoenus maritimus subsp. paludosus L. Ahart 1981-11-6 3226 Butte Small ditch, w of parking area, e of Graylodge Waterfowl Mgmt HQ, ca. 1/4 mi w of Pennington Rd, ca. 12 mi sw of Gridley. 35 Comment
  CHSC36513  Galium divaricatum L. Ahart 1982-5-29 3448 Butte N of the Peter Ahart Ranch, ca. 2.5 mi N and 1 mi E of Honcut. 50 Comment
  CHSC36893  Carex multicaulis L. Ahart 1982-6-4 3537 Butte On a lava cap, 1.5 mi e of Camp 18, ca. 8 mi e of Feather Falls. 1000 Comment
  CHSC37078  Erigeron bonariensis L. Ahart 1982-9-9 3771 Butte Ca. 100 m n of the check-in station, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CHSC37122  Moehringia macrophylla L. Ahart 1982-9-13 3830 Butte On high bar that had been mined for gold along Pinkard Creek, ca. 1/8 mi n of Lost Creek Reservoir Dam, ca. 2.2 mi nw of Strawberry Valley. 1100 Comment
  CHSC39258  Agrostis hendersonii Lowell Ahart 1983-6-26 4167 Butte Near Bean Creek Road, about 1/4 mile south of Little Bald Rock, about 20 miles north-east of Oroville. 1000 Comment
  CHSC39262  Achnatherum stillmanii Lowell Ahart 1983-6-30 4190 Butte About 1 1/2 miles south-east of Stirling Ciry. Section 4. 1100 Comment
  CHSC39273  Gilia capitata subsp. mediomontana Lowell Ahart 1983-6-26 4164 Butte Found along the sides of Bean Creek Road, about 1/2 mile south of Little Bald Rock. 1000 Comment
  CHSC39335  Hosackia pinnata Lowell Ahart 1983-6-26 4139 Butte Along the East Fork of Canyon Creek, along Ponderosa Way, about 14 miles north-east of Oroville. Note: the sign gives Big Ridge Road instead of Ponderosa Way. 500 Comment
  CHSC39494  Scutellaria californica Lowell Ahart 1983-6-21 4060 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
  CHSC39499  Acmispon brachycarpus Lowell Ahart 1983-5-28 4022 Butte Above the trail to the over-look at Feather Falls, about 5 1/4 miles north of the town of Feather Falls. 600 Comment
  CHSC39528  Paspalum urvillei Lowell Ahart 1983-6-12 4049 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
  CHSC39531  Micropus californicus var. californicus Lowell Ahart 1983-6-12 4043 Butte Along the edge of the road and near a small meadow, about 1 mile south of Crystal Hill, near Oregon Gulch, near Lake Oroville, about 7 miles south-west of Feather Falls. 425 Comment
  CHSC39547  Isoetes howellii Lowell Ahart 1983-6-6 4031 Butte Peter Ahart Ranch, about 2 miles north and 1/4 mile east of Honcut. 50 Comment
  CHSC39630  Equisetum laevigatum Lowell Ahart 1983-4-22 3937 Butte Peter Ahart Ranch, Honcut. On the banks of North Honcut Creek, about 1 1/4 miles north and 3 miles east of Honcut. 50 Comment
  CHSC39972  Polypogon interruptus L. Ahart; P. Ahart 1983-6-26 4110 Butte Ca. 1/8 mi e of jct of Oroville-Quincy Hwy and Ponderosa Way (Big Ridge Rd), ca. 15 mi ne of Oroville. Along the road. 500 Comment
  CHSC40005  Spergularia rubra Lowell Ahart 1983-8-16 4309 Butte Found on bank of small wash, near Bull Hill Road, about 3 1/2 miles south of Butte Meadows. 1600 Comment
  CHSC40282  Acmispon brachycarpus Lowell Ahart 1985-5-31 5038 Butte At the Enterprise Launch Area, about 3/4 mile west of the Enterprise Bridge across Lake Oroville, north-east of Oroville. 274 Comment
  CHSC40322  Myosurus minimus Lowell Ahart 1985-4-21 4880 Butte Found near Wyandotte Creek, south of Central House Road, north-west of Honcut, about 12 miles south of Oroville. 35 Comment
  CHSC40366  Tribulus terrestris Lowell Ahart 1985-6-9 5043 Butte On the west side of Cherry Street, between 7th. and 8th. Street, Chico. 60 Comment
  CHSC40393  Limosella acaulis Lowell Ahart 1985-4-20 4876 Butte Rice field, Peter Ahart Ranch, about 2 miles north and 1/8 mile east of Honcut, about 12 miles south of Oroville. 40 Comment
  CHSC40405  Calochortus monophyllus Lowell Ahart 1985-3-22 4849 Butte About 1/2 mile north-east of the West Branch Bridge across Lake Oroville, 1/4 mile east of Highway 70, north of Oroville. 4500 Comment
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Dec 26 2009
  CHSC40416  Scirpus microcarpus Lowell Ahart 1985-6-30 5076 Butte East of the dirt road to the Forbestown Res., about 2 1/2 miles north-east of Forbestown. 868 Comment
  CHSC40422  Hoita orbicularis Lowell Ahart 1985-7-24 5150 Butte East of the dirt road to the Forbestown Res., about 2 1/2 miles north-east of Forbestown. 868 Comment
  CHSC40467  Antennaria argentea Lowell Ahart 1985-6-17 5048 Butte Along the dirt road on Fields Ridge, about 4 miles south-east of Feather Falls. 792 Comment
  CHSC40649  Stellaria nitens Ahart; Jokerst 1985-3-24 4862 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
  CHSC40786  Velezia rigida Lowell Ahart 1985-5-6 4933 Butte Along Table Mountain Boulevard, south of the Cambell Overflow, 1/2 mile south of the intersection of Highway 70 and 149, about 7 miles north of Oroville. 91 Comment
  CHSC40914  Meconella californica Lowell Ahart 1973-4-15 204 Butte Along Swedes Flat Road, north of Bangor. 304 Comment
  CHSC40919  Berberis aquifolium var. dictyota Lowell Ahart 1970-4-5 41 Butte Along Robinson Mill Road, north-east of Bangor. 457 Comment
  CHSC40921  Gilia capitata subsp. pedemontana Lowell Ahart 1985-5-15 4989 Butte Ridge, east of the dirt road, about 1 1/2 miles north-east of Concow Res. 731 Comment
  CHSC41463  Calochortus nudus Lowell Ahart 1986-7-2 5340 Butte North of the dirt road, 1/2 mile south-west of Bald Mountain, about 4 1/2 miles north-east of Stirling City. 1615 Comment
  CHSC41769  Asyneuma prenanthoides Lowell Ahart 1974-10-22 669 Butte Along the road that crosses the South Fork of the Feather River, about 3/4 mile north of Golden Trout Crossing, west of the Sly Creek Dam. 762 Comment
  CHSC41770  Cyperus erythrorhizos Lowell Ahart 1986-11-9 5447 Butte On the bottom of a pond, 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
  CHSC41986  Echinochloa crus-galli Lowell Ahart 1986-11-14 5463 Butte On the bottom of a pond, 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
  CHSC41994  Sericocarpus oregonensis Lowell Ahart 1975-9-4 971 Butte Sierra Nevada. Along the South Fork of the Feather River, about 1/2 mile north of Golden Trout Crossing, about 15 miles north of Feather Falls. 762 Comment
  CHSC41999  Pseudognaphalium thermale Lowell Ahart 1975-9-4 973 Butte Along the South Fork of the Feather River, about 1/2 mile north of the Golden Trout Crossing, about 15 miles north of Feather Falls. 762 Comment
  CHSC42003  Ceanothus cuneatus Lowell Ahart 1961-3-16 3 Butte At the Salmon Hole, Upper Bidwell Park, Chico. 91 Comment
  CHSC42039  Erythranthe bicolor Lowell Ahart 1986-5-20 5280 Butte Road goes to the Forbestown Reservoir, about 2 miles south-west of the Forbestown Reservoir, about 2 1/2 miles north-east of Forbestown. 822 Comment
  CHSC42042  Tellima grandiflora Lowell Ahart 1986-5-20 5278 Butte Near the edge of the road that goes to the Forbestown Reservoir, about 1mile south-west of the Forbestown Reservoir, about 3 1/2 miles north-east of Forbestown. 609 Comment
  CHSC42052  Polygonum aviculare Lowell Ahart 1986-11-9 5453 Butte On the bottom of a pond, 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
  CHSC42123  Polygonum bolanderi Lowell Ahart 1980-7-20 2480 Butte On dry soil in a crack in a large bare granite rock, near Bean Creek Road, south of Little Bald Rock, about 15 miles northeast of Oroville. 1005 Comment
  CHSC42352  Phacelia vallicola Lowell Ahart 1987-5-12 5627 Butte On dry bare broken black lava, south of Lumpkin Ridge Road, south of the dirt road, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 1280 Comment
  CHSC42403  Poa trivialis subsp. trivialis Lowell Ahart 1987-6-9 5731 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
  CHSC42434  Salix lucida subsp. lasiandra Lowell Ahart 1987-4-20 5492 Butte Along North Honcut Creek, abour 2 1/2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 67 Comment
  CHSC42439  Melica californica Lowell Ahart 1987-5-9 5582 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
  CHSC42442  Solanum parishii Lowell Ahart 1987-5-22 5674 Butte North of Lumpkin Ridge Road, about 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 1280 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
  CHSC42468  Senecio sylvaticus Lowell Ahart 1987-5-6 5564 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC42560  Lathyrus sulphureus Lowell Ahart 1987-5-11 5621 Butte South of the Forbestown Ditch, about 2 1/2 miles north-east of Forbestown. 868 Comment
  CHSC42861  Bromus tectorum Lowell Ahart 1987-5-6 5552 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
  CHSC42936  Mentzelia laevicaulis Lowell Ahart 1987-7-3 5783 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
  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
  CHSC43230  Arceuthobium campylopodum Lowell Ahart 1987-9-29 5907 Butte Along the dirt road that ends at Sugar Pine Point, about 1/2 mile south of Lumpkin Ridge Road, about 1 mile southeast of Camp 18, about 7 miles north-east of Feather Falls. 1280 Comment
  CHSC43351  Sidalcea calycosa Lowell Ahart 1979-5-7 1860 Butte Along and near Kunkle Creek, about 2 1/2 miles south-east of Paradise. 487 Comment
  CHSC43545  Ranunculus sceleratus Lowell Ahart 1982-5-10 3432 Butte In our rice field, Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 38 Comment
  CHSC43555  Castilleja campestris subsp. campestris Lowell Ahart 1979-5-20 1885 Butte West of the Western Pacific Railroad, about 2 miles south of Palermo. 30 Comment
  CHSC43812  Athysanus pusillus Lowell Ahart 1978-4-19 1649 Butte Along the trail to Feather Falls, about 3 miles north of the town of Feather Falls. 548 Comment
  CHSC44336  Navarretia heterandra Lowell Ahart 1988-5-12 5997 Butte In a pasture field, about 1/4 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
  CHSC44337  Navarretia heterandra Lowell Ahart 1988-4-29 5961 Butte Near the ditch which was part of Honcut Flume, on the Joie Osgood Ranch, about 2 miles north and 2 1/2 miles east of Honcut, about 12 miles south-east of Oroville. 76 Comment
  CHSC44341  Claytonia parviflora subsp. parviflora Lowell Ahart 1988-3-27 5937 Butte Along the North fork of the Feather River, a little north of the Poe Power House, about 2 miles south-east of Jarbo Gap. 274 Comment
  CHSC44385  Dianthus armeria Lowell Ahart 1988-6-29 6089 Butte Along Galen Ridge Road, about 1/2 mile east of the Oroville Quincy Highway, north of Lake Madrone. 621 Comment
  CHSC44436  Triteleia ixioides subsp. scabra Lowell Ahart 1988-6-29 6107 Butte At the intersection of Bean Creek Road and the road to the Andy Smith Ranch, about 1 1/2 miles south-east of Little Bald Rock. 914 Comment
  CHSC44437  Bulbostylis capillaris Lowell Ahart 1988-6-29 6093 Butte Near Bean Creek Road, about 1/2 mi SE of Little Bald Rock. 975 Comment
  CHSC44441  Elodea canadensis Lowell Ahart 1988-5-30 6020 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC44451  Bromus carinatus Lowell Ahart 1988-6-23 6073 Butte South of the intersection of Black Bart Road and Forbestown Road, about 1 miles west of Robinson Mill Road. 670 Comment
  CHSC44523  Juncus bufonius var. congestus Lowell Ahart 1988-5-15 6005 Butte On the south side of Oroville Dam Boulevard, east of McDonald's, Oroville. 42 Comment
  CHSC44903  Gnaphalium palustre Lowell Ahart 1988-7-24 6126 Butte At the intersection of Forbestown Road and Black Bart Road, about 1 mile west of Robinson Mill Road. 731 Comment
  CHSC44918  Chloris virgata Lowell Ahart 1988-7-31 6141 Butte On the east side of Lone Tree Road, about 50 yards north of the intersection with Cox Lane, about 8 miles south of Oroville. 33 Comment
  CHSC44934  Carex feta Lowell Ahart 1988-7-31 6159 Butte On the south side of the road, a little south-west of the stream that is a branch of Last Chance Creek, about 1 air mile west and a little north of Bald Mountain, about 3 1/2 air miles north-east of Stirling City. 1066 Comment
  CHSC45102  Erythranthe lewisii Lowell Ahart 1988-9-4 6177 Butte On the bottom and sides of Big Kimshew Creek, about 1 air mile north-east of Jones Meadow. The creek crosses a large meadow. 1920 Comment
  CHSC45143  Eleocharis pachycarpa Lowell Ahart 1975-6-19 793 Butte Along the edges of 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
  CHSC45178  Eleocharis quinqueflora Lowell Ahart 1970-4-4 39 Butte On the bottom of a small wash, Peter Ahart Ranch, about 1 1/2 miles north and 1 1/2 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC45210  Panicum acuminatum Lowell Ahart 1984-7-19 4726 Butte On road banks, about 1 1/2 miles south-east of Bald Mountain, 3/4 mile west of Oak Point, about 4 air miles north-east of Stirling City. 1371 Comment
  CHSC45417  Clematis ligusticifolia Lowell Ahart 1976-6-24 1144 Butte Along the edge 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. 51 Comment
  CHSC45466  Persicaria hydropiper Lowell Ahart 1983-9-17 4437 Butte On the sides of a deep wash, about 1/4 mile south-east of Stirling City. 1097 Comment
  CHSC45969  Lithophragma bolanderi Lowell Ahart 1974-4-7 355 Butte Peter Ahart Ranch, about 1 1/4 miles north and 1 1/4 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC46086  Sherardia arvensis Lowell Ahart 1989-3-25 6199 Butte Along an old dirt road, near Lake Oroville, about 1/4 mile north-west of the West Branch Bridge across Lake Oroville. 304 Comment
  CHSC46087  Collinsia sparsiflora var. collina Lowell Ahart 1989-3-25 6198 Butte Along an old road to Lake Oroville, near Lake Oroville, about 1/4 miles north-west of the West Branch Bridge across Lake Oroville. 304 Comment
  CHSC46132  Clarkia mildrediae subsp. mildrediae Lowell Ahart 1984-7-19 4745 Butte Along a logging road, near the dirt road, about 1 1/2 miles south-east of Bald Mountain, 3/4 mile west of Oak Point, about 4 air miles north-east of Stirling City. 1371 Comment
  CHSC46144  Epilobium cleistogamum Lowell Ahart 1978-5-15 1728 Butte On the bottom of a vernal pool, in a pasture field, Peter Ahart Ranch, about 2 1/4 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC46149  Tetrapteron graciliflorum Lowell Ahart 1976-4-11 1059 Butte Along a wash, Peter Ahart Ranch, about 1 1/4 miles north and 1 1/2 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC46159  Trifolium ciliolatum Lowell Ahart 1979-4-28 1850 Butte Along the banks of 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
  CHSC46335  Microseris elegans Lowell Ahart 1989-4-26 6203 Butte Along the edges of a dirt road, Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC46371  Trifolium glomeratum Lowell Ahart 1989-5-23 6253 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
  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
  CHSC46387  Clarkia purpurea subsp. quadrivulnera Lowell Ahart 1989-5-10 6224 Butte At the end of the dirt road that leads to Lake Oroville, about 1/12 mile north-west of the West Branch Bridge across Lake Oroville. 280 Comment
  CHSC46420  Carex praegracilis Lowell Ahart 1989-5-28 6283 Butte In a mined over area 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
  CHSC46486  Marah watsonii Lowell Ahart 1980-4-7 2077 Butte South of the bridge across Rocky Honcut Creek, along Swedes Flat Road, north of Bangor. 292 Comment
  CHSC46494  Clarkia unguiculata Lowell Ahart 1989-5-31 6333 Butte On the west side of a small stream, north of the end of Truex Road, near Lake Oroville, about 1/4 mile north-west of the West Branch Bridge across Lake Oroville. 304 Comment
  CHSC46630  Calycadenia multiglandulosa Lowell Ahart 1989-7-4 6363 Butte Near a mined over area south of Oregon Gulch Road, about 1/4 mile northwest of the Cementery, about 1 1/4 miles west of Rocky Point, about 10 miles east and 3 miles north of Oroville. 335 Comment
  CHSC46766  Plagiobothrys scriptus Lowell Ahart 1977-4-9 1276 Butte Along the edges of a small swale, Peter Ahart Ranch, about 2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC46767  Plagiobothrys shastensis Lowell Ahart 1979-5-12 1872 Butte In 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
  CHSC46913  Calycadenia multiglandulosa Lowell Ahart 1980-7-4 2448 Butte Near the Oak Grove Cementery, about 1/2 mile southeast of Hurleton. 548 Comment
  CHSC47393  Callitriche heterophylla var. bolanderi Lowell Ahart 1984-5-7 4595 Butte In a small pool, east of Kunkle Creek, about 1/2 mile north of Kunkle Reservoir, about 2 miles south of Paradise. 548 Comment
  CHSC47466  Plantago erecta Lowell Ahart 1978-5-1 1696 Butte Growing in a farmed field, Peter Ahart Ranch, about 2 1/4 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC47467  Plantago erecta Lowell Ahart 1980-5-4 2202 Butte Growing about 150 feet south-west of the intersection of Forbestown Road and Hurleton. 548 Comment
  CHSC47501  Diplacus kelloggii Lowell Ahart 1974-4-15 417 Butte On the north side of Swedes Flat Road, about 1/4 mile east of the bridge across Rocky Honcut Creek, north of Bangor. 487 Comment
  CHSC47632  Polypogon monspeliensis Lowell Ahart 1982-7-18 3681 Butte Along the sides and bottom of a wash, 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
  CHSC47644  Elymus caput-medusae Lowell Ahart 1979-6-2 1912 Butte Wash, in one of the farmed fields, Peter Ahart Ranch, about 2 1/2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC50663  Silene antirrhina Lowell Ahart 1990-4-28 6469 Butte In the borrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  CHSC50672  Vicia americana var. americana Lowell Ahart 1990-5-25 6487 Butte Near a small stream, below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/8 mile north-west of the Enterprise Bridge across Lake Oroville. 259 Comment
  CHSC50689  Lindernia dubia var. anagallidea Lowell Ahart 1990-5-25 6485 Butte Below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/8 mile north-west of the Enterprise Bridge across Lake Oroville. 243 Comment
  CHSC50696  Juncus diffusissimus Lowell Ahart 1990-5-21 6476 Butte Near the west edge of a small pond, in the borrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  CHSC51000  Lythrum salicaria Lowell Ahart 1990-7-22 6575 Butte Growing on the bottom of Wyman Ravine, on the east side of Lincoln Boulevard, Palermo. 45 Comment
  CHSC51032  Eragrostis cilianensis Lowell Ahart 1990-8-15 6594 Butte Along a wash, below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/4 mile north-werst of the Enterprise Bridge across Lake Oroville. 228 Comment
  CHSC51265  Hypericum perforatum Lowell Ahart 1990-10-3 6616 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
  CHSC54345  Cotoneaster pannosus Lowell Ahart 1991-5-31 6658 Butte Along the Dan Beebe Trail in Lake Oroville Recreation Area, between Canyon Drive and Oroville Dam Blvd East, south-west of Oroville Dam. 213 Comment
  CHSC58265  Astragalus tener var. ferrisiae Lowell Ahart 1992-5-23 6770 Butte On the north side of Biggs Princeton Road, about 2 miles west of Biggs. 30 Comment
  CHSC58866  Cystopteris fragilis Lowell Ahart 1992-7-26 6835 Butte On the south side of Coon Hollow, about 1/2 mile north of the Carr Mine, about 2 (air) miles south of Snow Mountain. 1737 Comment
  CHSC58928  Epilobium densiflorum Lowell Ahart 1992-8-2 6903 Butte In Concow Meadow, about 3 (air) miles north-east of Concow Reservoir. 1097 Comment
  CHSC58931  Epilobium ciliatum subsp. glandulosum Lowell Ahart 1992-7-26 6853 Butte In a meadow along a small stream, on the south side of Coon Hollow, about 1/2 mile north of the Carr Mine, about 2 (air) miles south of Snow Mountain. 1798 Comment
  CHSC58947  Polygonum polygaloides subsp. kelloggii Lowell Ahart 1992-7-21 6804 Butte On the sides of a snow lake, on the south side of Coon Hollow, about 2 (air) miles north-east of Philbrook Reservoir. 1737 Comment
  CHSC59013  Eleocharis bella Lowell Ahart 1992-7-21 6812 Butte On the sides of a snow lake, on the south side of Coon Hollow, about 2 (air) miles north-east of Philbrook Reservoir. 1737 Comment
  CHSC59063  Trisetum projectum Lowell Ahart 1992-7-29 6896 Butte In a small meadow, north of a small stream, at the end of a logging road, about 1/2 (air) mile north of Philbrook Road, about 1 (air) mile north-west of Philbrook Reservoir. 1676 Comment
  CHSC59549  Phacelia imbricata Lowell Ahart 1992-9-20 6922 Butte Below the high water line of Lake Oroville, about 1/8 mile west of the Enterprise Boat Launch Ramp, about 3/4 mile south-west of Rocky Point. 243 Comment
  CHSC60974  Cuscuta californica var. californica Lowell Ahart 1993-6-20 7001 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC60979  Hosackia stipularis var. ottleyi Lowell Ahart 1993-6-16 6966 Butte Southwest of the intersection of Balck Bart Road and Forbestown Road, about 3 1/2 (air) miles southwest of Forbestown. Common. Yellow Pine Forest. 609 Comment
  CHSC60982  Lupinus lepidus var. sellulus Lowell Ahart 1993-6-26 7042 Butte About 1/4 mile north of Jackass Flat, Mooreville Ridge, about 1 1/4 miles (air) north-west of Lost Creek Reservoir. 1188 Comment
  CHSC60991  Trichostema oblongum Lowell Ahart 1993-6-20 6983 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC61012  Sherardia arvensis Lowell Ahart 1993-6-20 6986 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC61220  Carex nudata Lowell Ahart 1993-4-8 6931 Butte On the banks and sides of a deep almost dry ditch, on the south side of the Biggs Princeton Road, about 1 1/4 miles west of Biggs. 30 Comment
  CHSC61294  Centaurea jacea Lowell Ahart 1993-8-8 7154 Butte On the west side of La Porte Road, about 2 miles south-west of Clipper Mills. 1066 Comment
  CHSC61299  Stephanomeria paniculata Lowell Ahart 1993-8-8 7153 Butte Near Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC61312  Gaultheria ovatifolia Lowell Ahart 1993-8-8 7149 Butte About 1/2 mile north-west of Lewis flat, about 3/4 mile north-west of the Sly Creek Dam. 1097 Comment
  CHSC61326  Navarretia divaricata subsp. divaricata Lowell Ahart 1993-7-29 7125 Butte On the east side of an old water ditch for gold mining, about 1/8 mile north of the Snow Mine, about 2 1/2 miles north-east of Bald Mountain, about 6 1/2 miles north-east of Stirling City. 1676 Comment
  CHSC61348  Juncus hemiendytus var. hemiendytus Lowell Ahart 1993-7-29 7120 Butte About 2 1/2 miles northeast of Bald Mountain, about 6 1/2 miles northeast of Stirling City. 1584 Comment
  CHSC61362  Agrostis exarata Lowell Ahart 1993-7-23 7092 Butte On the west side of Fall River, about 100 yards west of the bridge across Fall River, about 6 (air) miles north-east of Feather Falls. 1036 Comment
  CHSC61373  Muhlenbergia filiformis Lowell Ahart 1993-7-23 7093 Butte On a gravel bar on the west side of Fall River, about 100 yards west of the bridge across Fall River, about 6 (air) miles north-east of Feather Falls. 1036 Comment
  CHSC61504  Erythranthe bicolor Lowell Ahart 1993-6-20 6993 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC61509  Carex cyrtostachya Lowell Ahart 1993-7-6 7052 Butte On the north side of the dirt road, about 1/4 mile west of the Lost Creek Reservoir. 1036 Comment
  CHSC61533  Bromus orcuttianus Lowell Ahart 1993-6-26 7020 Butte On the east side of the dirt road, about 1 mile west of Lost Creek Reservoir. 1188 Comment
  CHSC61540  Festuca rubra Lowell Ahart 1993-7-6 7064 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC61550  Scribneria bolanderi Lowell Ahart 1993-6-26 7032 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC61636  Sambucus racemosa var. microbotrys Lowell Ahart 1993-9-8 7163 Butte About 1 mile east of Snow mountain. 2072 Comment
  CHSC61651  Carex heteroneura var. heteroneura Lowell Ahart 1993-9-8 7157 Butte On the north side of the ridge, about 1 mile east of Snow Mountain. 2072 Comment
  CHSC63242  Pectocarya pusilla Lowell Ahart 1994-4-22 7285 Butte In a small meadow, south of the intersection of Black Bart Road and Forbestown Road, about 3 1/2 miles south-west of Forbestown. 609 Comment
  CHSC63268  Ranunculus sardous Lowell Ahart 1994-6-6 7312 Butte 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
  CHSC63696  Calycadenia ciliosa Lowell Ahart 1994-10-8 7551 Butte Along North Rim Trail, near the double power lines, Bidwell Park, about 1 mile east of Chico. 152 Comment
  CHSC63697  Lactuca canadensis Lowell Ahart 1994-10-23 7568 Butte Along the edge of the water ditch, about 3 miles north of De Sabla Reservoir, about 4 miles (air) west and 1/2 mile north of Stirling City. 853 Comment
  CHSC65195  Minuartia cismontana Lowell Ahart 1995-5-30 7588 Butte Along the edge of the dirt road, about 1/10 mile south-east of the reservoir, north of Beatson Hollow, about 2 miles north-west of Cherokee Road, North Table Mountain, about 7 miles north of Oroville. 304 Comment
  CHSC65323  Agoseris glauca var. monticola Lowell Ahart 1995-10-3 7669 Butte Along the north side of Butte Creek House Meadow, about 2 1/2 miles (air) north-east of Snag Lake. 1767 Comment
  CHSC68299  Euphorbia spathulata Lowell Ahart 1997-3-25 7714 Butte West of the ditch for the Old Honcut Flume, west of North Honcut Creek, about 2 1/4 miles north and 2 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville. 60 Comment
  CHSC68550  Brachypodium distachyon Lowell Ahart 1997-5-18 7740 Butte Clear Creek, south of the hay barn, Butte Junior College. 76 Comment
  CHSC68710  Piptatherum miliaceum Lowell Ahart 1997-5-18 7739 Butte Below the cement of the low water crossing, Clear Creek, south of the hay barn, Butte Junior College. 76 Comment
  CHSC68911  Platanthera leucostachys Lowell Ahart 1997-7-11 7746 Butte 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
  CHSC69050  Potentilla gracilis var. fastigiata Lowell Ahart 1997-8-3 7773 Butte On the east side of Little Kimshew Creek, where the basalt is eight sided, Snow Meadow, about 1/4 mile east of Table Mountain, about 8 miles (air) northeast of Stirling City. 1524 Comment
  CHSC69161  Trillium albidum Lowell Ahart 1997-8-1 7764 Butte On the west side of Little Kimshew Creek, Snow Meadow, about 1/4 mile east of Table Mountain. 1524 Comment
  CHSC69450  Epilobium brachycarpum Lowell Ahart 1997-9-6 7888 Butte Near the McNab Cypress grove, near the steel tower power line, along the sides of a logging road, about 1/4 mile west of Rim Road, about 2 miles (air) northeast of Concow Reservoir. 731 Comment
  CHSC69718  Chamaesyce maculata Lowell Ahart 1997-10-24 7941 Butte About 20 yards north of the South Fork of the Feather River and on the east side of Sucker Creek, strand of Lake Oroville, about 1/4 mile west of the Ponderosa Dam. 274 Comment
  CHSC70856  Triglochin scilloides Lowell Ahart 1998-4-29 7954 Butte Northeast of the large parking area on North Table Mountain, on the east side of Cherokee Road, about 7 miles north of Oroville. 426 Comment
  CHSC71086  Trifolium campestre Lowell Ahart 1998-5-30 7959 Butte Near a large vernal pool and south of the lone oak tree, west of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CHSC71212  Elymus glaucus subsp. glaucus Lowell Ahart 1998-6-3 7973 Butte About 1/4 mile north of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CHSC71258  Zeltnera venusta Lowell Ahart 1998-7-1 8021 Butte Northwest on the lone oak tree, about 1/8 mile northwest of the cow chute on the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CHSC72253  Aristida oligantha Lowell Ahart 1998-9-11 8057 Butte 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
  CHSC75338  Phalaris lemmonii Lowell Ahart 1999-5-21 8069 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
  CHSC75364  Velezia rigida Lowell Ahart 1999-6-12 8087 Butte On the south part of the dam, above the high water line of the reservoir, north of Beatson Hollow, North Table Mountain, about 2 1/2 miles (air) west of the entrance gates along the west side of Cherokee Road, about 7 miles (air) north of Oroville. 297 Comment
  CHSC75967  Ammannia coccinea Lowell Ahart; Vernon H. Oswald 1999-8-13 8167 Butte Along east side of the Sacramento River, northwest of Parrott Landing, about1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CHSC76008  Datura stramonium var. tatula Lowell Ahart; Vernon H. Oswald 1999-8-13 8134 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
  CHSC76013  Cyperus fuscus Lowell Ahart; Vernon H. Oswald 1999-8-13 8181 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
  CHSC76261  Amaranthus albus Lowell Ahart 1999-9-21 8265 Butte Along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CHSC76290  Persicaria maculosa Lowell Ahart 1999-9-21 8270 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
  CHSC76308  Schoenoplectus tabernaemontani Lowell Ahart 1999-9-21 8278 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
  CHSC76396  Marsilea vestita subsp. vestita Lowell Ahart; Vernon H. Oswald 1999-10-3 8286 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
  CHSC76413  Rorippa curvisiliqua var. occidentalis Lowell Ahart 1999-10-28 8298 Butte On the bottom of a wash, just southeast of the small pond where you can park, 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
  CHSC77993  Delphinium gracilentum Lowell Ahart 2000-5-10 8337 Butte On the south side of the old or west trail, Feather Falls Trail, about 1 mile north of the trailhead, about 2 miles (air) north of Feather Falls. 579 Comment
  CHSC78132  Streptanthus drepanoides Lowell Ahart 2000-5-31 8420 Butte Below the high water line of Lake Oroville, about 400 yards east of where Kunkle Creek enters Lake Oroville, east of the Kunkle Power House, about 3 miles southeast of Paradise. 271 Comment
  CHSC78212  Juncus kelloggii Lowell Ahart 2000-6-6 8455 A Butte In tire ruts on the bottom of an old gold mining pit, about 200 yards northwest of where the dirt road crosses Oregon Gulch creek, about 1/4 mile north of the cemetery, about 1 1/2 mile south of Crystal Hill, about 5 miles (air) east of Oroville Dam. 304 Comment
  CHSC78248  Lathyrus hirsutus Lowell Ahart 2000-6-17 8483 Butte Near seeps, about 1/4 mile northeast of Kunkle Reservoir, east of Pentz Magalia Road, about 2 miles south of Paradise. 548 Comment
  CHSC78273  Verbena hastata Lowell Ahart 2000-6-21 8495 Butte In a small seep, south of Parking Area P, north of the Salmon Hole, Upper Bidwell Park, about 3 1/3 miles (air) northeast of Manzanita Avenue, Chico. 106 Comment
  CHSC78320  Rhynchospora capitellata Lowell Ahart 2000-7-11 8572 Butte Seeps, on the north side 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
  CHSC78335  Juncus ensifolius Lowell Ahart 2000-7-11 8568 Butte On the sides 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
  CHSC78399  Eleocharis pachycarpa Lowell Ahart 2000-7-18 8597 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
  CHSC78486  Cyperus flavescens Lowell Ahart 2000-8-23 8664 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
  CHSC78547  Lipocarpha micrantha Lowell Ahart 2000-9-2 8679 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
  CHSC78908  Phoradendron libocedri Lowell Ahart 2000-9-27 8696 Butte About 1/4 mile southeast of Little Bald Rock, about 1 1/4 miles (air) northeast of Big Bald Rock, about 4 miles (air) northeast of Madrone Lake, about 13 miles (air) northeast of Oroville. 1066 Comment
  CHSC80576  Ammi majus Lowell Ahart 2001-6-13 8814 Butte Sides of the dirt road south and 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
  CHSC80577  Coriandrum sativum Lowell Ahart 2001-6-13 8815 Butte Center of the dirt road 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
  CHSC80658  Mentha pulegium Lowell Ahart 2001-6-1 8746 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
  CHSC82292  Castilleja attenuata Lowell Ahart 2002-4-24 9530 Butte In a field, on the east side of Lone Tree Road, about 1 1/8 miles north of Cox Lane, about 3 miles (air) southwest of Palermo, about 7 miles (air) south of Oroville. 35 Comment
  CHSC82383  Eleocharis montevidensis Lowell Ahart 2002-6-7 9710 Butte On the south side 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. 38 Comment
  CHSC82414  Torilis nodosa Lowell Ahart 2002-5-7 9608 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
  CHSC82419  Veronica arvensis Lowell Ahart 2002-5-7 9629 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
  CHSC82421  Leontodon saxatilis subsp. longirostris Lowell Ahart 2002-5-7 9610 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
  CHSC82469  Anisocarpus madioides Lowell Ahart; John Dittes, Josephine Guardino 2002-6-21 9746 Butte On the north 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
  CHSC82470  Bromus carinatus var. carinatus Lowell Ahart; John Dittes, Josephine Guardino 2002-6-21 9736 Butte On the sides 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
  CHSC83005  Leptochloa fusca subsp. fascicularis Lowell Ahart 2002-9-7 9929 Butte On the east side of Cherokee Road, north of the Thermalito Diversion Canal, on the west side of the water purification pond, about 1 mile north of Oroville. 130 Comment
  CHSC83016  Panicum capillare Lowell Ahart 2002-10-17 9999 Butte 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
  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
  CHSC84016  Ludwigia palustris Lowell Ahart 2003-6-23 10312 Butte In a rice field, 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
  CHSC84017  Lythrum portula Lowell Ahart 2003-6-23 10301 Butte In a rice field, 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
  CHSC84130  Malva parviflora Lowell Ahart 2003-5-9 10122 Butte Along the southwest corner of a prune orchard, on the north side of Evans Reimer Road, about 3/4 mile west of Block Road, about 3 miles (air) southwest of Gridley. 24 Comment
  CHSC84153  Cyperus eragrostis Lowell Ahart 2003-6-30 10329 Butte Near the small stream, on the west side of Ponderosa Way, about 1 1/2 miles (by road) southwest of the Ponderosa Dam, about 2 miles (air) northwest of Forbestown. 404 Comment
  CHSC84274  Delphinium hansenii subsp. hansenii Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2003-5-27 10225 Butte On the east side of the dirt road, at Parking Area P, Upper Bidwell Park, about 5 miles east of Manzanita Avenue, Chico. 228 Comment
  CHSC84279  Carex praegracilis Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2003-5-27 10221 Butte About 100 yards west of the dirt road, west of Diversion Dam on Big Chico Creek, west of Parking Area L, Upper Bidwell Park, about 3 1/2 miles east of Manzanita Avenue, Chico. 121 Comment
  CHSC84417  Pedicularis racemosa Lowell Ahart 2003-8-26 10543 Butte On the west side of the dirt road, west of where Pinkard Creek flows into the Lost Creek Reservoir, about 3/8 mile north of the Lost Creek Reservoir Dam, 1 1/8 mile (air) southwest of the Sly Creek Reservoir Dam. 996 Comment
  CHSC87191  Sagina apetala Lowell Ahart 2004-4-4 10720 Butte On the fire guard, about 5 yards east of Wilber Road, north of the high hill crossed by Wilber Road, south of the wash, pasture, about 3 miles (air) west of Thermalito. 48 Comment
  CHSC87230  Cotula australis Lowell Ahart 2004-3-12 10703 Butte Grave of Tillie Moody, east of the entrance gate, Thompson Flat Cemetery, about 1/8 mile east of Cherokee Road, about 1 mile north of Oroville. 61 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
  CHSC88246  Piperia transversa Lowell Ahart 2004-7-11 11246 Butte Along the dirt road, 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
  CHSC88257  Melica harfordii Lowell Ahart 2004-7-11 11229 Butte On the north side of the road, on the northeast side of Paradise Lake, about 1/4 mile southeast of Mosquito Creek, about 4 miles (air) southwest of Stirling City. 814 Comment
  CHSC88915  Bromus catharticus Lowell Ahart 2004-8-30 11399 Butte In a walnut orchard, on the north side of O'Brien Road, about 100 yards east of Gilstrap Avenue, about 1 1/2 miles (air) southeast of Gridley. 28 Comment
  CHSC90471  Geranium molle Lowell Ahart; Paul Maslin, John Dittes 2005-3-17 11650 Butte Big Chico Creek Ecological Reserve. Burned area, 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
  CHSC90630  Crassula tillaea Lowell Ahart; Paul Maslin, John Dittes 2005-3-17 11662 Butte Big Chico Creek Ecological Reserve. 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
  CHSC90643  Claytonia parviflora subsp. parviflora Lowell Ahart; Paul Maslin, John Dittes 2005-3-17 11651 Butte Big Chico Creek Ecological Reserve. 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
  CHSC90802  Bromus diandrus Lowell Ahart 2005-4-14 11707 Butte At the base of the railroad roadbed, east side of the railroad tracks, south of the railroad bridge, north of Spruce Street, Gridley. 28 Comment
  CHSC90825  Trifolium glomeratum Lowell Ahart 2005-5-2 11759 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
  CHSC90996  Lasthenia fremontii Lowell Ahart 2005-5-11 11806 Butte Margins of a small vernal pool, south of a small stream, open pasture field, about 1 mile south of Beatson Hollow, about 1 1/2 miles southwest of the poor dirt road off of Cherokee Road, south part of North Table Mountain, about 7 miles (air) north of Oroville. 280 Comment
  CHSC91464  Rosa pisocarpa subsp. ahartii Lowell Ahart 2005-7-13 12144 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
  CHSC91469  Hesperolinon disjunctum Lowell Ahart 2005-7-12 12141 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
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Jul 18 2018
  CHSC92512  Pseudognaphalium luteoalbum Lowell Ahart 2005-12-11 12511 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
  CHSC93365  Spergula arvensis subsp. arvensis Lowell Ahart 2006-4-23 12533 Butte On the east side of Cherokee Road, about 200 yards south of the cattle chute and parking area on the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 424 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
  CHSC93874  Madia gracilis Lowell Ahart 2006-6-9 12649 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
  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
  CHSC94162  Coronilla varia Lowell Ahart 2006-6-24 12862 Butte Disturbed area on the east side of the dirt road (Ponderosa Way), south of an intersection, a gated road goes southeast, on Cohasset Ridge, about 4 miles (air) northeast of Cohasset. 1113 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
  CHSC94249  Navarretia intertexta subsp. intertexta Lowell Ahart 2006-7-16 13003 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
  CHSC94254  Elymus trachycaulus subsp. subsecundus Lowell Ahart 2006-7-16 12999 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
  CHSC94259  Trisetum canescens Lowell Ahart 2006-7-16 12967 Butte West edge 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
  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
  CHSC94529  Cinna latifolia Lowell Ahart 2006-8-15 13191 Butte East part of a large meadow with bogs, on the east side of Willow Creek, about 100 yards southeast of the cabin, about 3/4 miles (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1569 Comment
  CHSC94561  Juncus acuminatus Lowell Ahart 2006-9-13 13326 Butte South edge of the North Fork of the Feather River, about 100 yards west of the Cresta Power House, north side of Highway 70, about 2 3/4 miles northeast of Pulga, about 23 miles (air) northeast of Oroville. 437 Comment
  CHSC94590  Cyperus eragrostis Lowell Ahart 2006-9-11 13298 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
  CHSC94785  Acmispon americanus var. americanus Lowell Ahart 2006-10-8 13441 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
  CHSC94891  Spergularia rubra Lowell Ahart 2006-9-28 13367 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
  CHSC95989  Azolla microphylla Lowell Ahart 2007-2-14 13562 Butte Dredge ponds along the east side of Wilson Creek, about 1/2 mile north of the Honcut Cemetary, about 3 3/4 miles (air) northeast of Honcut. 49 Comment
  CHSC96787  Agrostis hendersonii Lowell Ahart 2007-5-22 13899 Butte Along swales, on Big Bald Rock, about 14 miles (air) northeast of Oroville. 955 Comment
  CHSC96794  Trifolium microcephalum Lowell Ahart 2007-4-30 13709 Butte On the north side of Jordan Hill Road, about 2 miles northwest of Concow Creek, about 2 miles northwest of Concow Reservoir. 484 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
  CHSC96964  Juncus bufonius var. bufonius Lowell Ahart 2007-6-12 14061 Butte Along swales, west of a high ridge on Big Bald Rock, about 14 miles (air) northeast of Oroville. 972 Comment
  CHSC96969  Woodwardia fimbriata Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-10 14281 Butte Northwest part of a large open area, about 250 yards east of Bean Creek Road, northeast of Little Bald Road, about 16 miles (air) northeast of Oroville. 1024 Comment
  CHSC96970  Rhynchospora capitellata Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-10 14278 Butte Northwest part of a large open area, about 250 yards east of Bean Creek Road, northeast of Little Bald Road, about 16 miles (air) northeast of Oroville. 1024 Comment
  CHSC97258  Cyperus difformis Lowell Ahart 2007-8-19 14486 Butte About 2 1/4 miles (air) southeast of Honcut, about 13 miles (air) southeast of Oroville. 49 Comment
  CHSC97717  Dittrichia graveolens Lowell Ahart 2007-10-30 14510 Butte West side of Highway 99, about 100 yards north of Badger Creek Road, about 500 yards south of Richvale East Road, about 7 (air) miles west of Oroville. 34 Comment
  CHSC97722  Ambrosia psilostachya Lowell Ahart 2007-10-30 14509 Butte On the south side of the water ditch, on the north side of Lower Wyandotte Road, about 2 1/2 miles (air) northeast of Palermo, about 4 1/4 miles (air) southeast of Oroville. 129 Comment
  CHSC98967  Lupinus bicolor var. tridentatus Lowell Ahart 2008-5-12 14750 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 northwest of the Ponderosa Dam. 258 Comment
  CHSC99325  Geranium carolinianum Lowell Ahart 2008-5-12 14753 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 northwest of the Ponderosa Dam. 258 Comment
  CHSC99478  Callitriche heterophylla var. heterophylla Lowell Ahart 2008-6-13 14829 Butte In shallow water, bottom of Oregon Gulch, bottom of an old gold mined area, about 400 yards southwest of the cemetery, about 10 miles (air) northeast of Oroville. 305 Comment
  CHSC99749  Juncus acuminatus Lowell Ahart 2008-7-23 15140 Butte On the north edge of the South Fork of the Feather River, about 10 yards east of where Sucker Creek enters the South Fork of the Feather River, below the high water line of Lake Oroville, about 1/4 mile west of the Ponderosa Dam. 258 Comment
  CHSC99754  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
  CHSC99759  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
  CHSC99820  Juncus trilocularis Lowell Ahart 2008-6-13 14821 Butte East side of a small meadow, bottom of an old gold mined area, about 150 yards west of the cemetery, about 150 yards north of Oregon Gulch, about 10 miles (air) northeast of Oroville. 311 Comment
  HSC100729  Chenopodium strictum var. glaucophyllum Lowell Ahart 2009-8-13 16281 Butte NE of Hooker Oak, Upper Bidwell Park, Chico, S end of cement barrier that controls water flow into Mud Creek. 69 Comment
  HSC104001  Digitaria ischaemum L. Ahart 2012-10-20 18494 Butte Chico, Lower Bidwell Park, west of Cedar Grove, ~50 yds. W of Table 4 on the south side of Big Chico Creek 69 Comment
  HSC93187  Ranunculus pusillus L. Ahart 1995-5-26 7573 Butte Peter Ahart Ranch, 2 mi. N and 0.25 mi. E of Honcut, 12 mi. S of Oroville 37 Comment
  HSC93378  Gastridium phleoides L. Ahart 1995-5-30 7584 Butte S of Beatson Hollow, 1/8 mi. N of Cherokee Road, N Table Mtn., 7 mi. N of Oroville. 335 Comment
  HSC96904  Scutellaria californica L. Ahart 2006-6-9 12658 Butte On N side of Bardees Bar Rd., ca. 1/8 mi. NW of the poor bridge across the N Fork of the Feather River at Bardees Bar, about 2 3/4 mi. SW of Pulga 386 Comment
  HSC97053  Eragrostis pectinacea var. pectinacea L. Ahart 2004-9-14 11402 Butte E side of Palermo Honcut Hwy., about 20 ft. S of Palermo Rd., E part of Palermo. 58 Comment
  HSC97102  Polypogon interruptus L. Ahart 2005-4-14 11720 Butte Gridley, N of Spruce St., 200 ft E of the railroad tracks 28 Comment
  HSC97110  Trifolium ciliolatum L. Ahart 2006-5-2 12553 Butte Peter Ahart Ranch, about 2 1/2 mi. N and 1 1/8 mi. E of Honcut, about 12 mi. SE of Oroville 33 Comment
  HSC97883  Chondrilla juncea L. Ahart 2003-7-10 10372 Butte N slope of Ponderosa Dam, about 2 mi. (air) NW of Forbestown 297 Comment
  JEPS102326  Potamogeton illinoensis Lowell Ahart 2001-6-3 8750 Butte about 1 mi N and 2 3/4 mi E of Honcut (Peter Ahart Ranch, W side of North Honcut Creek) 38 Comment
  JEPS102337  Vicia villosa subsp. villosa Lowell Ahart 2001-5-10 8737 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
  JEPS102345  Sibara virginica Lowell Ahart 2001-4-27 8733 Butte 1 3/4 mi W of Honcut (just NW of bridge across Wyandotte Creek, N of Lower Honcut Road, 125 yds W of the railroad) 26 Comment
  JEPS102496  Trifolium tomentosum Lowell Ahart 2001-4-27 8735 Butte Just northwest of the bridge across Wyandotte Creek, north of Lower Honcut Road, about 125 yards west of the Railroad, about 1 1/4 mile east of Highway 70, about 1 3/4 miles west of Honcut, about 14 miles (air) south of Oroville. 26 Comment
  JEPS103364  Plantago elongata Lowell Ahart 2002-3-16 9417 Butte On the bottom and sides of a depression, on the N side of a poor dirt road, ca 50 yards N of Highway 32, ca 1/4 mile E of the intersection of Bruce Road and Highway 32, E of Chico. 73 Comment
  JEPS103414  Juncus capitatus Lowell Ahart 2002-4-24 9535 Butte Vernal pools and swales, in a field, on the E side of Lone Tree Road, ca 1 1/8 miles N of Cox Lane, ca 3 miles (air) SW of Palermo, ca 7 miles (air) S of Oroville. 35 Comment
  JEPS103477 Image available Lathyrus angulatus Lowell Ahart 2002-5-7 9621 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
  JEPS103533  Lotus purshianus var. purshianus Lowell Ahart 2002-6-21 9750 Butte On the S side of a poor dirt road, Watson Ridge, ca 2 miles (air) NE of Bald Rock Dome, ca 5 miles (air) N of Feather Falls (the town). 1095 Comment
  JEPS103567  Trisetum canescens Lowell Ahart 2002-6-21 9741 Butte On the sides of a poor dirt road, Watson Ridge, ca 2 miles (air) NE of Bald Rock Dome, ca 5 miles (air) N of Feather Falls (the town). 1086 Comment
  JEPS103577  Lathyrus angulatus Lowell Ahart 2002-5-7 9621 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
  JEPS104023  Plantago erecta Lowell Ahart 2003-4-10 10061 Butte Near the e side of the ''sunken area,'' ca 150 yd w of the e rim of South Table Mountain, ca 2 1/2 mi (air) n of Oroville. 320 Comment
  JEPS104162  Athyrium filix-femina var. cyclosorum Lowell Ahart 2003-7-12 10377 Butte Along a small stream, on the w side of Milsap Bar Rd, ca 2 1/2 mi (air) e of the Brush Creek Work Center, ca 17 mi (air) ne of Oroville. 1036 Comment
  JEPS104287  Polygonum amphibium var. emersum Lowell Ahart 2003-6-16 10287 Butte In a ditch on the w side of Wickman Rd, ca 1 mi south of Richvale West Rd, ca 1 1/2 mi (air) sw of Richvale. 28 Comment
  JEPS104340  Delphinium hesperium subsp. pallescens Lowell Ahart 2003-5-14 10174 Butte About 150 yd w of the dredge piles along North Honcut Creek, ca 2 1/2 mi n and 2 1/2 mi e of Honcut, ca 12 mi se of Oroville. 60 Comment
  JEPS104414  Allophyllum divaricatum Lowell Ahart 2003-7-10 10369 Butte On both sides of the dirt road to the power generator, on the n side of Ponderosa Reservoir, ca 1 1/2 mi (air) e of the Ponderosa Dam. 331 Comment
  JEPS104451  Alisma lanceolatum Lowell Ahart 2003-6-23 10303 Butte In a rice field, Peter Ahart Ranch, ca 300 yd e of the Palermo Honcut Highway, ca 2 1/8 mi n of Honcut, ca 12 mi south of Oroville. 30 Comment
  JEPS106002  Blennosperma nanum var. nanum Lowell Ahart 2004-4-1 10706 Butte On the margins of vernal pools, on the north side of Nelson Avenue, about 45 yards west of the intersection of 20th Street and Nelson Avenue, Thermalito 53 Comment
  JEPS106106  Bromus carinatus var. carinatus Lowell Ahart 2004-7-11 11230 Butte On the south side of the road, on the northeast side of Paradise Lake, about 1/8 mile southwest of Mosquito Creek, about 4 miles (air) southwest of Stirling City 814 Comment
  JEPS106240  Bromus orcuttianus Lowell Ahart 2004-7-11 11232 Butte Along the road, 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 814 Comment
  JEPS106264  Melica subulata Lowell Ahart 2004-7-23 11300 Butte On the east side of the road, north of the West Branch Campground, south of the Bridge across the West Branch of the Feather River, about 1 1/2 miles (air) west of Philbrook Reservoir Dam, about 3 3/4 miles (air) southeast of Butte Meadows 1456 Comment
  JEPS107323  Erodium cicutarium Lowell Ahart 2005-4-14 11723 Butte About 20 feet east of the railroad tracks, north of Spruce Street, Gridley 28 Comment
  JEPS107330  Veronica peregrina subsp. xalapensis Lowell Ahart 2005-4-14 11715 Butte Bottom of a deep drain ditch, about 200 feet east of the railroad tracks, north of Spruce Street, Gridley 28 Comment
  JEPS107352  Nemophila heterophylla Lowell Ahart, Paul Maslin, John Dittes 2005-3-17 11679 Butte Big Chico Creek Ecological Reserve. On the west side of Chico Canyon Road, about 1 mile (air) west of Highway 32, about 7 miles (air) northeast of Chico 236 Comment
  JEPS107376  Vulpia myuros var. hirsuta Lowell Ahart 2005-4-14 11708 Butte At the base of the railroad roadbed, east side of the railroad tracks, south of the railroad bridge, north of Spruce Street, Gridley 28 Comment
  JEPS107416  Crassula tillaea Lowell Ahart, Paul Maslin, John Dittes 2005-3-17 11662 Butte Big Chico Creek Ecological Reserve. 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
  JEPS107755  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
  JEPS107984  Calycadenia oppositifolia Lowell Ahart 2005-7-12 12136 Butte On the west side of Encina Grade Road (Bloomer Hill Road), about 2 miles (air) southeast of Bloomer Hill, about 2 miles west of Oroville Quincy Highway 623 Comment
  JEPS108135  Heterotheca grandiflora Lowell Ahart 2005-11-20 12491 Butte W side of the Poe Power house, E of the North Fork of the Feather River 275 Comment
  JEPS108725  Lessingia nemaclada Lowell 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 452 Comment
  JEPS108859  Packera eurycephala var. lewisrosei Lowell Ahart 2006-5-10 12616 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
  JEPS108863  Polygonum punctatum Lowell Ahart 2006-10-8 13428 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
  JEPS108900  Calystegia malacophylla subsp. malacophylla Lowell Ahart 2006-7-11 12942 Butte About 100 yards south of Humboldt Road, about 1 3/8 miles (air) southwest of Butte Meadows 1400 Comment
  JEPS108965  Plantago lanceolata Lowell Ahart 2006-9-13 13321 Butte South edge of the North Fork of the Feather River, about 50 yards west of the Cresta Power House, north side of Highway 70, about 2 3/4 miles northeast of Pulga, about 23 miles (air) northeast of Oroville 437 Comment
  JEPS108975  Bidens frondosa Lowell Ahart 2006-9-11 13274 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
  JEPS110082  Ammannia coccinea Lowell Ahart 2006-8-5 13084 Butte On the bottom of a large wash, Peter Ahart Ranch, about 1 1/2 miles north and 300 yards east of Honcut, about 12 miles south of Oroville Comment
  JEPS110121  Polygonum persicaria Lowell Ahart 2006-8-29 13236 Butte In the field north of the canal and Parking Lot 16, west of the gravel road, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area) 19 Comment
  JEPS110150  Juncus leiospermus var. leiospermus Lowell Ahart 2006-5-3 12558 Butte On the sides of vernal pools, 20 feet south of the fence, about 5/8 mile north of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 405 Comment
  JEPS110271  Crucianella angustifolia Lowell Ahart 2006-6-9 12645 Butte On the south side of the service road to Bardees Bar along the North Fork of the Feather River, about 1/8 mile east of Highway 70, about 2 3/4 miles (air) southwest of Pulga 435 Comment
  JEPS110325  Eleocharis suksdorfiana Lowell Ahart July 25, 2006 2006 13059 Butte 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. Comment
  JEPS110334  Muhlenbergia andina Lowell Ahart 2006-10-8 13423 Butte East side of the North Fork of the Feather River, about 50 yards north 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
  JEPS113186  Juncus brachyphyllus Lowell Ahart 2007-5-22 13898 Butte On Big Bald Rock, about 14 miles (air) northeast of Oroville 955 Comment
  JEPS113228  Pentagramma triangularis Lowell Ahart 2007-5-22 13918 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, a 844 Comment
  JEPS113239  Poa annua Lowell Ahart 2007-3-19 13594 Butte Peter Ahart Ranch, about 1 3/4 miles north and 1 1/4 miles east of Honcut, about 12 miles south of Oroville 35 Comment
  JEPS113261  Trifolium willdenovii Lowell Ahart 2007-4-30 13710 Butte On the north side of Jordan Hill Road, about 2 miles northwest of Concow Creek, about 2 miles northwest of Concow Reservoir 484 Comment
  JEPS113283  Melica torreyana Lowell Ahart 2007-4-16 13674 Butte On the west side fo North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 2 2/3 miles east of Honcut, about 12 miles southeast of Oroville 52 Comment
  JEPS113504  Ceanothus prostratus Lowell Ahart, Lawrence Janeway 2007-7-10 14282 Butte On the north side of Forest Road 21N31Y, about 6/10 mile west of Bald Rock Road, about 17 miles (air) northeast of Oroville 1032 Comment
  JEPS113537  Juncus ensifolius Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-10 14279 Butte Northwest part of a large open area, about 250 yards east of Bean Creek Road, northeast of Little Bald Road, about 16 miles (air) northeast of Oroville 1024 Comment
  JEPS113581  Bergia texana Lowell Ahart, Wenheng Zhang, Bruce Bartholomew 2007-8-20 14495 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles (air) south of Oroville Comment
  JEPS113842  Juncus tenuis Lowell Ahart 2007-7-2 14244 Butte On the east side of the restroom, at the parking area at Big Bald Rock, about 14 miles (air) northeast of Oroville 1001 Comment
  JEPS114722  Lotus nevadensis var. nevadensis Lowell Ahart 2008-5-12 14729 Butte Below the high water line of Lake Oroville, on the east side of Sucker Creek, about 40 yards east of where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile west of the Ponderosa Dam 258 Comment
  JEPS114892  Juncus triformis Lowell Ahart 2008-5-30 14791 Butte Dry to damp bare granite soil, along a small drainage, northwest part of the top of Big Bald Rock, about 14 miles (air) northeast of Oroville 975 Comment
  JEPS114956  Briza minor Lowell Ahart 2008-5-12 14739 Butte Below the high water line of Lake Oroville, on the east side of Sucker Creek, about 40 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
  JEPS114980  Juncus brachyphyllus Lowell Ahart 2008-6-13 14821 Butte East side of a small meadow, bottom of an old gold mined area, about 150 yards west of the cemetery, about 150 yards north of Oregon Gulch, about 10 miles (air) northeast of Oroville 311 Comment
  JEPS115002  Digitaria sanguinalis Lowell Ahart 2007-11-3 14568 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
  JEPS115041  Setaria parviflora Lowell Ahart 2007-9-30 14501 Butte West bank of North Honcut Creek, about 1 mile north and 2 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville 32 Comment
  JEPS115106  Polygonum arenastrum Lowell Ahart, John Dittes, Josephine Guardino 2008-11-8 15409 Butte On the north side of the gravel road, about 50 yards east of Cedar Grove Parking Area in Lower Bidwell Park, Chico 67 Comment
  JEPS115240  Hordeum murinum subsp. leporinum Lowell Ahart 2009-4-3 15536 Butte Along the south side of the gravel road, east of the Cedar Grove parking area in Lower Bidwell Park, Chico 67 Comment
  JEPS115264  Lotus purshianus var. purshianus Lowell Ahart, John Dittes, Josephine Guardino 2008-11-8 15439 Butte On the bottom of Lindo Channel, about 100 yards west of the diversion structure, north of Hooker Oak, Upper Bidwell Park, Chico 68 Comment
  JEPS115274  Perideridia kelloggii Lowell Ahart 2009-6-30 15972 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
  JEPS115290  Romulea rosea var. australis Lowell Ahart 2009-3-25 15519 Butte Open pasture field, Peter Ahart Ranch, about 1/2 mile north and 1 mile east of Honcut, about 12 miles south of Oroville 33 Comment
  JEPS115322  Geranium dissectum Lowell Ahart 2009-5-8 15663 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
  JEPS115353  Centaurea solstitialis Lowell Ahart 2009-7-3 15984 Butte 30 yards west of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 30 yards east of Cedar Grove parking area, Lower Bidwell park, Chico 67 Comment
  JEPS115501  Torilis arvensis subsp. arvensis Lowell Ahart 2009-6-12 15837 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
  JEPS115542  Hordeum murinum subsp. glaucum Lowell Ahart 2009-5-8 15670 Butte On the south side of the grave road, about 10 yards east of Cedar Grove Parking Area in Lower Bidwell Park, Chico 67 Comment
  JEPS115584  Calycanthus occidentalis Lowell Ahart 2009-5-23 15747 Butte On the east edge of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highwat 32, about 10 miles northeast of Chico 203 Comment
  JEPS115592  Calochortus monophyllus Lowell Ahart 2009-4-22 15597 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
  JEPS115606  Sanguisorba minor subsp. muricata Lowell Ahart 2009-5-23 15732 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
  JEPS115610  Torilis arvensis subsp. purpurea Lowell Ahart 2009-5-23 15725 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
  JEPS115635  Pinus sabiniana Lowell Ahart 2009-8-23 16300 Butte About 150 yards southwest 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 259 Comment
  JEPS115647  Ludwigia palustris Lowell Ahart 2009-8-13 16275 Butte In the channel about 100 yards east of the diversion structure that controls Mud Creek diversion and Lindo Channel, northeast of Hooker Oak, Upper Bidwell Park, Chico 68 Comment
  JEPS115697  Rosa californica Lowell Ahart 2009-6-19 15942 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
  JEPS115725  Lepidium pinnatifidum Lowell Ahart 2009-7-4 16001 Butte On the south side of the paved road, southeast of parking lot 4, Gray Lodge Waterfowl Management Area, about 6 miles (air) southwet of Gridley 21 Comment
  JEPS115826  Keckiella breviflora var. glabrisepala Lowell Ahart 2009-4-26 15610 Butte Upper Bidwell Park, on the west side of Highway 32, west of the parking area at the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 461 Comment
  JEPS115837  Petrorhagia dubia Lowell Ahart 2009-4-22 15573 Butte West side of Guardians Trail, south side of the 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
  JEPS115845  Plagiobothrys tenellus Lowell Ahart 2009-4-22 15571 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
  JEPS115863  Lessingia nemaclada Lowell Ahart 2009-6-30 15965 Butte About 150 yards north of a small drainage, along the Guardian Rock Trail, about 150 yards southwest of Pine Trail, about 1/2 mile (air) southwest of the intersection of Ten Mile House Road and Highway 32, Upper Bidwell Park, about 10 miles northeast of Ch 398 Comment
  JEPS115881  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
  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
  JEPS116008  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 266 Comment
  JEPS116049  Triticum aestivum Lowell Ahart 2009-4-3 15537 Butte Along the south side of the gravel road, east of the Cedar Grove parking area in Lower Bidwell Park, Chico 67 Comment
  JEPS116099  Luzula macrantha Lowell Ahart 2009-5-15 15711 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
  JEPS117142  Thysanocarpus curvipes var. elegans Lowell Ahart 2010-4-30 16597 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
  JEPS117192  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2010-6-20 16832 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
  JEPS117208  Epilobium torreyi Lowell Ahart 2010-5-14 16659 Butte Area of erosion control, Disc Golf Area, about 100 yards west of the entrance to the Disc Golf Area, about 120 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 372 Comment
  JEPS117212  Lupinus nanus var. vallicola Lowell Ahart 2010-5-16 16679 Butte About 1/4 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville 378 Comment
  JEPS117255  Allium amplectens Lowell Ahart 2010-5-23 16728 Butte On the west side of Guardians trail, north of the small drainage, about 50 yards north of Pine Trail, about 1/4 mile (air) west of Highway 32, about 9 miles (air) northeast of Chico 429 Comment
  JEPS117327  Navarretia viscidula Lowell Ahart 2010-6-1 16756 Butte On both sides of the Guardians Trail or South Rim Trail, under the power lines, Upper Bidwell Park, about 2 mile (air) east of Chico 144 Comment
  JEPS117410  Calandrinia ciliata Lowell Ahart 2010-5-14 16659 A Butte Area of erosion control, Disc Golf Area, about 100 yards west of the entrance to the Disc Golf Area, about 120 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 372 Comment
  JEPS117506  Trifolium variegatum Lowell Ahart 2010-5-22 16716 Butte About 140 yards east of the fence, about 240 yards east of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville 392 Comment
  JEPS117510  Veronica peregrina subsp. xalapensis Lowell 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 1/2 miles (air) northeast of Oroville 385 Comment
  JEPS117524  Ligustrum japonicum Lowell Ahart 2010-9-24 17239 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
  JEPS117642  Trisetum canescens Lowell Ahart 2010-9-28 17256 Butte In the shade of Sierra Lodgepole Pine, about 5 yards west of Big Kimshew Creek, meadow edge, about 100 yards east of a poor dirt road, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir 1886 Comment
  JEPS117684  Agrostis variabilis Lowell Ahart 2010-9-21 17220 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
  JEPS117692  Allium sanbornii var. sanbornii Lowell Ahart 2010-7-27 16911 Butte On the west side of Forbestown Road, about 1/10 mile north of Black Bart Road, about 11 miles east of Oroville 741 Comment
  JEPS117702  Sonchus oleraceus Lowell Ahart 2010-5-14 16671 Butte On the south side of a trail, about 1/2 mile west of the entrance to the Disc Golf Area, west of Highway 32. Upper Bidwell Park, about 4 1/2 miles (air) northeast of Chico 260 Comment
  JEPS117718  Calamagrostis canadensis Lowell Ahart 2010-9-21 17222 Butte On damp soil, open meadow, about 10 yards east of poor dirt road, 200 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrood Reservoir 1917 Comment
  JEPS118008  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
  JEPS118055  Symphyotrichum spathulatum Lowell Ahart 2011-8-23 17650 Butte In the large meadow, Pinkard Creek flows through the meadow, east of the corral, about 1 mile north of Lost Creek Reservoir Dam, about 4 miles (air) northeast of Clipper Mills 1133 Comment
  JEPS119500  Duchesnea indica var. indica Lowell Ahart, John Dittes, Josephine Guardino 2012-4-6 17819 Butte On the north side of Big Chico Creek, Lost Park in Bidwell Park, City of Chico. Comment
  JEPS119543  Morus alba Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17859 Butte East of the Deer Pen, south of Table 11, Lower Bidwell Park, Chico. Comment
  JEPS119565  Garrya fremontii Lowell Ahart 2012-2-22 17755 Butte On the south side of Guardian Trail, about 20 yards west of Ten Mile House Road, about 1/4 mile west of Highway 32, about 9 miles northeast of Chico. Comment
  JEPS119593  Senecio sylvaticus Lowell Ahart 2012-4-9 17843 Butte About 20 yards west of South Rim Trail, south part of Upper Bidwell Park, about 2 1/2 miles (air) northeast of Chico. Comment
  JEPS119609  Pyrus communis Lowell Ahart 2012-4-9 17822 Butte About 20 yards east of South Rim Trail, about 50 yards east of Big Chico Creek, south part of Upper Bidwell Park, about 1/2 mile east of the power lines, about 1 1/2 miles (air) northeast of Chico. Comment
  JEPS119611  Amsinckia eastwoodiae Lowell Ahart 2012-4-9 17821 Butte Along South Rim Trail, about 100 yards north of the homes, south part of Upper Bidwell Park, about 1/4 mile east of the power lines, about 1 1/4 miles (air) northeast of Chico. Comment
  JEPS119698  Crassula tillaea Lowell Ahart 2012-5-2 17980 Butte About 100 yards southeast of the entrance to Upper Bidwell Park, about 1/4 mile east of Chico. Comment
  JEPS119708  Lasthenia fremontii Lowell Ahart 2012-5-2 17963 Butte About 30 yards west of the Easter Cross Parking Lot, Upper Bidwell Park, about 1 mile east of Chico. Comment
  JEPS119755  Medicago lupulina Lowell Ahart 2012-5-14 18062 Butte Planted area between sidewalk and Vallombrosa Avenue, west of Manzanita Avenue, just west of the bridge across Big Chico Creek, Lower Bidwell Park, Chico. Comment
  JEPS119838  Draba verna var. aestivalis Lowell Ahart 2012-3-23 17780 Butte About 100 yards south of the intersection of Guardian Trail and Ten Mile House Road, about 1/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  JEPS119862  Briza minor Lowell Ahart 2012-5-17 18082 Butte On the north edge of Big Chico Creek, southeast of Table 21, south of the paved park road, northeast of the Deer Pen, Lower Bidwell Park, Chico. Comment
  JEPS119880  Epilobium foliosum Lowell Ahart 2012-6-2 18141 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
  JEPS119901  Verbascum virgatum Lowell Ahart 2012-5-31 18115 Butte On the south side of Neal Road, west of the intersection of Highway 99 and Neal Road, about 3 miles (air) south of Chico. Comment
  JEPS119919  Symphyotrichum chilense Lowell Ahart 2012-10-20 18486 Butte On the south side of Big Chico Creek, on the east side of the bridge, north of the restrooms, about 200 yards west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  JEPS119942  Bidens frondosa Lowell Ahart 2012-9-28 18458 Butte Just east of the east end of Sycamore Pool in Big Chico Creek, Lower Bidwell Park, Chico. Comment
  JEPS119984  Trifolium oliganthum Lowell Ahart 2012-4-30 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
  JEPS119992  Malva nicaeensis Lowell Ahart, Linnea Hanson, Kaline Le Coq, Josephine Guardino 2012-4-27 17909 Butte Near the intersection of Valllombrosa Avenue and Manzanita Avenue, Lower Bidwell Park, Chico. Comment
  JEPS120021  Phytolacca americana var. americana Lowell Ahart 2012-10-28 18524 Butte On the south side of Big Chico Creek, about 50 yards east of Table 5, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  JEPS120032  Juncus exiguus Lowell Ahart 2012-6-21 18211 Butte On the south side of Big Chico Creek, about 300 yards east of the dam at Sycamore Pool, Lower Bidwell Park, Chico. Comment
  JEPS120068  Celtis australis Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18022 Butte On the north side of Big Chico Creek, south of the path, south of the paved park road, south of the old walnut orchard, south of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  JEPS120078  Micranthes californica Lowell Ahart 2012-3-23 17785 Butte On the sides of the trail down to Big Chico Creek, about 70 yards west of Ten Mile House Road, about 3/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  JEPS120127  Carex pendula Lowell Ahart 2012-5-31 18116 Butte On the north side of Comanche Creek, on the east side of Highway 99, Chico. Comment
  JEPS120170  Pentagramma triangularis subsp. triangularis Lowell Ahart 2012-6-2 18136 Butte 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. Comment
  JEPS120644  Panicum capillare Lowell Ahart 2013-11-13 19242 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
  JEPS120726  Eragrostis pilosa var. pilosa Lowell Ahart 2013-10-16 19117 Butte South edge of the paved road, about 100 yards SE of the restroom, near end of road to the Larkin Road Boat Launch Area, about 1/4 mile W of Larkin Road, about 2 air miles SW of the Oroville Airport. Comment
  JEPS120759  Holocarpha virgata Lowell Ahart 2013-9-5 19022 Butte On west side of La Porte Road, about 1/4 mile SW of Dunstone Drive, about 2 1/3 air miles northeast of Huncut Comment
  JEPS120763  Echinochloa crus-galli Lowell Ahart 2013-9-20 19055 Butte About 100 yards west of the railroad, about 400 yards south of the Rice Experiment Station buildings, about 2 miles SE of Richvale. Comment
  JEPS120834  Lathyrus latifolius Lowell Ahart 2013-7-1 18814 Butte About 150 yards E of the intersection of Forbestown Road and Black Bart Road, about 3.25 air miles SW of Forbestown. Comment
  JEPS120915  Toxicoscordion venenosum var. venenosum Lowell Ahart 2013-6-1 18721 Butte about 150 yards E of the intersection of Forbestown Road and Black Bart Road, about 3.25 air miles SW of Forbestown. Comment
  JEPS120930  Isoetes howellii Lowell Ahart 2013-5-22 18703 Butte About 2.5 miles SE of the Honcut Cemetery, about 3.25 air miles NE of Honcut. Comment
  JEPS120952  Capsella bursa-pastoris Lowell Ahart 2013-4-20 18556 Butte Corral at the barn, about 1/4 mile N of Honcut Cemetery, about 3.25 air miles NE of Honcut. Comment
  JEPS120988  Bromus laevipes Lowell Ahart 2013-5-27 18716 Butte On E side of Black Bart Road, about 0.75 road miles SW of intersection of Forbestown Road and Black Bart Road, about 3.5 air miles SW of Forbestown. Comment
  JEPS121922  Luzula comosa var. comosa Lowell Ahart 2014-7-10 19634 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  JEPS121953  Mimulus breweri Lowell Ahart 2014-7-7 19590 Butte About 1/2 mile (air) north of Philbrook Reservoir. Comment
  JEPS121969  Arnica discoidea Lowell Ahart 2014-7-7 19568 Butte Along the east side of the Skyway, about one-mile south of Inskip. Comment
  JEPS121979  Poa bolanderi Lowell Ahart 2014-7-10 19628 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  JEPS122143  Leptosiphon bicolor Lowell Ahart 2014-5-2 19435 Butte Along the trail north side of Beatson Hollow, about 1 1/2 miles southwest of the Improved Parking Area and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  JEPS122193  Poa annua Lowell Ahart 2014-4-16 19367 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. Comment
  JEPS122207  Medicago polymorpha Lowell Ahart 2014-4-25 19406 Butte On the west side of Richvale South Highway, south of the intersection of Richvale West Road and Richvale South Highway, Richvale. Comment
  JEPS122213  Festuca myuros var. hirsuta Lowell Ahart 2014-4-25 19404 Butte On the west side of Richvale South Highway, south of the intersection of Richvale West Road and Richvale South Highway, Richvale. Comment
  JEPS122225  Agrostis microphylla Lowell Ahart 2014-4-20 19383 Butte About 50 yards southeast of a small falls, about 3/4 mile northwest of the parking area on the west side of Cherokee Road, about 7 miles (air) north of Oroville. Comment
  JEPS122234  Elatine Lowell Ahart 2014-4-26 19411 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
  JEPS123825  Castilleja applegatei subsp. pinetorum Lowell Ahart 2015-4-18 20055 -B Butte About 1/4 mile southwest of the Forbestown Reservoir, about 3 1/2 miles (air) northeast of Forbestown. Comment
  JEPS123966  Eriodictyon lobbii Lowell Ahart 2015-7-4 20267 Butte 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. Comment
  JEPS124021  Navarretia divaricata subsp. divaricata Lowell Ahart 2015-6-16 20237 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
  JEPS124158  Amaranthus californicus Lowell Ahart 2015-11-7 20616 Butte About 1/4 mile south of the end of Alternate 40, Dark Canyon, about 4 miles (air) south of Highway 70, about 8 miles (air) southeast of Paradise. Comment
  JEPS124170  Trifolium fucatum Lowell Ahart 2015-3-26 19968 Butte About 1/4 mile north of Gridley Road (west), about 4 miles (air) west of Gridley. Comment
  JEPS124220  Trifolium variegatum var. variegatum Lowell Ahart 2015-3-27 19973 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
  JEPS124301  Wolffia borealis Lowell Ahart 2015-11-18 20655 Butte About 2 miles southeast of intersection of Palm Avenue and Larkin Road, about 5 miles (air) northeast of Gridley. Comment
  JEPS87140  Leersia oryzoides Lowell Ahart 1992-9-9 6919 Butte about 1/2 mi se of Kunkle Reservoir (below the high water line of Lake Oroville); Lake Oroville 243 Comment
  JEPS87490  Veronica hederifolia Lowell Ahart 1993-4-1 6925 Butte about 1 1/2 mi n and 1 mi e of Honcut (about 12 mi s of Oroville, Peter Ahart Ranch); Peter Ahart Ranch 36 Comment
  JEPS87515 Image available Centaurea jacea Lowell Ahart 1993-8-8 7154 Butte w side of La Porte Road about 2 mi sw Clipper Mills 1066 Comment
  JEPS87618  Eriogonum nudum var. oblongifolium Lowell Ahart 1994-10-16 7563 Butte about 3/4 mi sw along dirt road Forbestown Reservoir Dam (near creek, about 2 air mi n and 3 1/2 mi e of Forbestown); Woodleaf Creek 762 Comment
  JEPS87776  Veronica persica Lowell Ahart 1994-3-30 7276 Butte about 7 mi n of Oroville (garden area at the ne corner of Oregon City School House, Oregon City); Oregon City, Oregon City School House 365 Comment
  JEPS93833  Plantago coronopus Lowell Ahart 1998-7-1 8030 Butte about 7 air mi n of Oroville (20 yards s of a east west fence, about 5/8 mi n of the cow chute along Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 403 Comment
  JEPS93840  Viola purpurea subsp. quercetorum Lowell Ahart 1998-6-3 7974 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
  JEPS94142  Carex subfusca Lowell Ahart 1998-6-9 7990 Butte ca. 7 mi. (air) n. Oroville (s.w. of the lone oak tree, n.w. of the cow chute along Cherokee Rd., North Table Mt.); North Table Mt. 403 Comment
  JEPS94633  Rumex obtusifolius Lowell Ahart 1998-7-1 8034 Butte about 7 air mi n Oroville (e of cow chute and on e side of Cherokee Rd.); North Table Mountain 403 Comment
  JEPS94650  Phalaris caroliniana Lowell Ahart 1998-6-9 7999 Butte about 7 air mi n Oroville (about 1/2 mi nw of the ione oak tree, nw of the cow chute along Cherokee Road); North Table Mountain 396 Comment
  JEPS94688  Lycopus americanus Lowell Ahart 1998-7-18 8042 Butte about 7 air mi n of Oroville (sw of the ione oak tree, w of the cow chute on the w side of Cherokee Road); North Table Mountain, Cherokee Road 403 Comment
  JEPS94724  Sidalcea hirsuta Lowell Ahart 1998-6-3 7975 Butte about 7 air mi n of Oroville (North Table Mountain, abut 1/4 mi n of the cow chute along Cherokee Road); North Table Mountain, Cherokee Road 403 Comment
  JEPS94729  Panicum acuminatum var. acuminatum Lowell Ahart 1998-7-1 8019 Butte about 7 air mi n Oroville (w of the ione oak tree, w of the cow chute on the w side of Cherokee Road); North Table Mountain, Cherokee Road 396 Comment
  JEPS95170  Clarkia mildrediae Lowell Ahart 1997-7-11 7743 Butte about 2 air mi sw of Bald Mountain (about 9 mi by road from Stirling City, or about 2 air mi ne of Stirling City, on n side of dirt road, se of Cold Creek) 1219 Comment
  JEPS95517  Orobanche uniflora Lowell Ahart 1994-4-22 7286 Butte 3 1/2 mi SW of Forbestown (S of int of Black Bart Road and Forbestown Road) 609 Comment
  JEPS95757  Kickxia elatine Lowell Ahart 1995-8-19 7611 Butte 12 mi S of Oroville (Peter Ahart Ranch; E side of North Honcut Creek; 1 mi N and 2 3/4 mi E of Honcut) 36 Comment
  JEPS95813  Polygonum hydropiper Lowell Ahart 1999-10-3 8293 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
  JEPS95863  Rorippa curvisiliqua var. occidentalis Lowell Ahart 1999-8-13 8155 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
  JEPS95884  Cyperus flavescens Lowell Ahart 1999-8-13 8143 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
  JEPS95930  Mollugo verticillata Lowell Ahart 1999-8-13 8176 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
  JEPS95943  Ammannia coccinea Lowell Ahart 1999-8-13 8167 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
  JEPS98265  Eleocharis radicans Lowell Ahart 2000-10-2 8698 Butte 2 mi SE of Ordbend (N of a large pond on E side of Sacramento River, NW of Parrott Landing, 1 mi SE of Ord Ferry, 12 air miles SW of Chico) 32 Comment
  JEPS98298  Cheilanthes gracillima Lowell Ahart 2000-6-27 8518 Butte Around large granite rocks, Big Bald Rock, about 3 miles (air) east of madrone Lake, about 12 miles (air) northeast of Oroville. 993 Comment
  JEPS98332  Juncus kelloggii Lowell Ahart 2000-6-6 8455 A Butte 5 air miles E of Oroville Dam (old gold mining pit, 200 yds NW of where the dirt road crosses Oregon Gulch creek, about 1/4 mi NE of the cemetery, 1 1/2 mi S of Crystal Hill) 304 Comment
  JEPS98354  Eleocharis quinqueflora Lowell Ahart 2000-5-23 8386 Butte 4 mi NE of: NE of the pond, about 1/8 mi N of La Porte Road, 1/2 mi SE of Honcut Cemetery Honcutt 54 Comment
  JEPS98400  Triodanis biflora Lowell Ahart 2000-5-17 8362 Butte 7 1/2 air miles W of Oroville (S margin of Thermalito Afterbay, N side of the poor dirt road, about 1/10 mi N of the Richvale Hwy, 1/2 mi E of Hwy 99) 42 Comment
  JEPS98444  Mimulus microphyllus Lowell Ahart 2000-5-31 8428 Butte 3 miles SE of Paradise (below the high water line of Lake Oroville, about 400 yds E of where Kunkle Creek enters Lake Oroville) 271 Comment
  JEPS98454  Lotus humistratus Lowell Ahart 2000-5-31 8424 Butte 3 mi SE of Paradise (200 yds E of where Kunkle Creek enters Lake Oroville, E of Kunkle Power House) 335 Comment
  JEPS98459  Juncus brachyphyllus Lowell Ahart 2000-6-6 8459 Butte 5 air miles E of Oroville Dam (old gold mining pit, 200 yds NW of where the dirt road crosses Oregon Gulch creek, about 1/4 mi NE of the cemetery, 1 1/2 mi S of Crystal Hill) 304 Comment
  JEPS98508  Phoradendron libocedri Lowell Ahart 2000-9-27 8696 Butte About 1/4 mile southeast of Little Bald Rock, about 1 1/4 miles (air) northeast of Big Bald Rock, about 4 miles (air) northeast of Madrone Lake, about 13 miles (air) northeast of Oroville. 1066 Comment
  JEPS98584  Isoetes nuttallii Lowell Ahart 2000-6-4 8443 Butte about 3 1/2 mi (air) SW of Forbestown (small meadow S of intersection of Black Bart Road and Forbestown Road) 731 Comment
  JEPS98589  Rubus discolor Lowell Ahart 2000-6-29 8546 Butte In the north part of 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
  JEPS98597  Eleocharis parishii Lowell Ahart 2000-5-30 8409 Butte 2 mi S of Paradise (about 1/4 mi NE of Kunkle Reservoir, E of the Pentz Magalia Road) 548 Comment
  JEPS98725  Juncus triformis Lowell Ahart 2000-6-27 8529 Butte N side of Bean Creek Road, 1/4 mi SE of Little Bald Rock, 1 1/4 mi NE of Big Bald Rock, 4 air mi NE of Madrone Lake, 13 air mi NE of Oroville 1066 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
  RSA0045625  Carex divulsa subsp. divulsa Lowell A. Ahart 2012-4-30 17948 Butte On the north side of Big Chico Creek, Lost Park in Bidwell Park, city of Chico. 64 Comment
  RSA0060137  Nicotiana quadrivalvis L. Ahart 2010-9-24 17234 Butte Near the SW edge of the Golf Course, along trail form the end of Centennial Ave. to the foot bridge across Big Chico Creek, Bidwell Park. 91 Comment
  RSA0060806  Amaranthus deflexus Lowell A. Ahart 2012-10-20 18516 Butte Ion[on?] the south side of the paved park road, about 30 yards east of Table 33, west of Cedar Grove, Lower Bidwell Park, Chico. 69 Comment
  RSA0060810  Cyperus iria Lowell A. Ahart 2012-10-5 18476 Butte South edge of parking area at the restroom, end of road to the Larkin Road Boat Launch Area, about 1/4 mile west of Larking Road, about 2 miles (air) southwest of the Oroville Airport. 28 Comment
  RSA0109093  Stachys pycnantha L. Ahart 2006-9-11 13286 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
  RSA0113969  Juncus effusus subsp. pacificus Lowell A. Ahart 2008-7-23 15144 Butte On the north side of the South Fork of the Feather River, about 10 yards west of where Sucker Creek enters the South Fork of the Feather River, below the high water line of Lake Oroville, about 0.25 miles west of the Ponderosa Dam. 258 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
  RSA0118696  Planodes virginica Lowell A. Ahart 2014-4-9 19325 Butte Rice field, near the pump, on the north side of Colusa Highway, about 0.4 mile east of the intersection of Pennington Road and Colusa Highway, about 5.5 miles west of Gridley. 23 Comment
  RSA0118747  Stephanomeria elata Lowell Ahart 2014-8-24 19725 Butte On the north side of the road, about 150 yards southwest of the Forbestown Reservoir Dam, about 4 miles (air) northeast of Forbestown. 577 Comment
  RSA697051  Ammannia coccinea L. Ahart 2003-6-23 10300 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
  RSA700214  Malacothrix floccifera L. Ahart 2004-6-22 11113 Butte On the north side of Doe Mill Road, about 1/12 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
  RSA700219  Bromus laevipes L. 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. 83 Comment
  RSA700221  Polystichum imbricans subsp. imbricans L. Ahart 2004-6-22 11117 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 (air) miles west of Stirling City 629 Comment
  RSA700238  Poa bolanderi L. Ahart 2004-7-23 11305 Butte On the east side of the road, North of the West Branch Campground, South of the bridge across the West Branch of the Feather River, About 1.5 miles (air) west of Philbrook Reservoir Dam., About 3.75 miles (air) southeast of Butte Meadows. 1457 Comment
  RSA700392  Narthecium californicum Lowell A. Ahart 2004-8-2 11321 Butte The start of a small branch of Keyser Creek, on the south side of the dirt County Road, about 4 miles (air) northeast of Stirling City 1690 Comment
  RSA703242  Veronica anagallis-aquatica L. Ahart 2004-10-3 11423 Butte On the west side of North Honcut Creek, Peter Ahart Ranch, about 1.5 miles north and 2.75 miles east of Honcut, about 12 miles (air) southeast of Oroville. 53 Comment
  RSA712865  Agrostis microphylla L. Ahart 2006-5-8 12611 Butte 100 yards west of a small stream, northeast of Phantom Falls, about 1/2 mile northwest of the parking area, cow chute, and Cherokee Road, Noth Table Mountain, about 7 miles (air) north of Oroville. 378 Comment
  RSA712923  Mimulus glaucescens L. Ahart 2006-5-10 12614 Butte Bardees Bar Road, about 100 yards north of poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 1/2 miles (air) southwest of pulga. 355 Comment
  RSA713023  Trifolium ciliolatum L. Ahart 2006-5-10 12629 Butte On the north side of the dirt road, Bardees Bar Road, about 4 miles (air) southwest of Pulga. 445 Comment
  RSA715538B  Orthocarpus lacerus L. Ahart 2005-7-13 12146 Butte About 10 yards east of the intersection of Forbestown Road and Black Bart Road, about 3.5 miles (air) southwest of Forbestown, about 12 miles (air) east of Oroville. 759 Comment
  RSA715566  Mimulus guttatus L. Ahart 2005-5-2 11781 Butte 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. 26 Comment
  RSA715608  Veronica peregrina subsp. xalapensis L. Ahart 2005-4-18 11740 Butte 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 southwest of Chico 26 Comment
  RSA715672  Navarretia heterandra L. Ahart 2005-5-27 11812 Butte About 50 yards northwest of the tower, Peter Ahart Ranch, about 2 1/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 43 Comment
  RSA715889  Capsella bursa-pastoris L. Ahart 2005-4-2 11683 Butte Overflow area on the E side of the Sacramento River, NW of Parrott Landing. About 1 mile SE of Ord Ferry. About 2 miles SE of Ordbend. About 12 miles (air) SW of Chico. 26 Comment
  RSA716046  Navarretia filicaulis L. Ahart 2005-7-12 12135 Butte On the west side of Encina Grade Road (Bloomer Hill Road), about 2 miles (air) southeast of Bloomer Hill, about 2 miles west of Oroville Quincy Highway. 624 Comment
  RSA716047  Centaurium muehlenbergii L. Ahart 2005-7-12 12139 Butte On the east side of Encina Grade Road (Bloomer Hill Road) (Forest Road 21N39), about 3/4 mile (air) south of Bloomer Hill, about five miles west of Oroville Quincy Highway. 734 Comment
  RSA718049  Ammannia coccinea L. Ahart 2006-8-5 13084 Butte Peter Ahart Ranch, about 1 1/2 miles north and 300 yards east of Honcut, about 12 miles south of Oroville. 30 Comment
  RSA718332  Melica harfordii L. Ahart 2006-6-9 12648 Butte On the west 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. 404 Comment
  RSA718743  Madia bolanderi L. Ahart 2006-7-25 13064 Butte 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. 1570 Comment
  RSA724845  Chenopodium strictum var. glaucophyllum L. Ahart 2006-9-28 13368 Butte E side of the N Fork of the Feather River, on the W side of Hwy 70, about 50 yards S of the Shady Rest Area S of the Arch Rock Tunnel. 445 Comment
  RSA724876  Melilotus albus L. Ahart 2006-9-13 13336 Butte South edge of the North Fork of the Feather River, about 100 yards west of Mill Creek, 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
  RSA724877  Brickellia californica L. Ahart 2006-9-11 13335 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
  RSA724881  Solanum americanum L. Ahart 2006-9-11 13296 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
  RSA724998  Polygonum lapathifolium L. 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 air miles northeast of Oroville. 432 Comment
  RSA725008  Epilobium ciliatum subsp. glandulosum L. Ahart 2006-9-13 13325 Butte South edge of the North Fork of the Feather River, about 100 yards west of the Cresta Power House, north side of highway 70, about 2 3/4 miles northeast of pulga, about 23 miles (air) northeast of Oroville. 437 Comment
  RSA726483  Quercus berberidifolia L. Ahart 2007-4-30 13707 Butte About 2 miles northwest of Concow Creek, about 2 miles northwest of Concow Reservoir. 484 Comment
  RSA726656  Juncus usitatus L. Ahart 2007-7-5 14249 Butte 25 yards west of French Avenue, on the north side of Evans Reimer Road, about 2 miles (air southwest of Gridley. 25 Comment
  RSA726657  Juncus usitatus L. Ahart 2007-7-5 14250 Butte Evans Reimer Road, about 1 1/4 miles east of Pennington Road, about 4 3/4 miles (air) southwest of Gridley. 23 Comment
  RSA726856  Torilis arvensis subsp. purpurea L. Ahart 2007-5-29 13948 Butte On the south side of the Dome Trail, trail leads to the Middle Fork of the Feather River, at 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
  RSA754388  Chamaesyce maculata L. Ahart 2009-7-3 15987 Butte E side of the road, 30 yards SE of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 100 yards E of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  RSA754795  Trifolium oliganthum L. Ahart, Josephine Guardino 2009-5-8 15651 Butte About 10 feet south of the south side of the gravel road and Big Chico Creek, about 100 yards E of the end of Chico Canyon Road, Upper Bidwell Park, Chico. 69 Comment
  RSA754845  Chamaesyce serpillifolia subsp. serpillifolia L. Ahart 2009-8-15 16285 Butte In a large wash, Peter Ahart Ranch, about 1.5 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 34 Comment
  RSA754855  Lupinus nanus var. vallicola L. Ahart 2009-4-26 15618 Butte About 120 yards SW of Ten Mile House Road, Upper Bidwell Park, about 1/2 air miles SW of the intersection of Highway 32 and Ten Mile House Road, about 10 miles NE of Chico. 287 Comment
  RSA754876  Cynodon dactylon L. Ahart 2009-6-19 15932 Butte West of the trail, on the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 air miles west of Highway 32, about 10 miles northeast of Chico. 204 Comment
  RSA755372  Eragrostis pectinacea var. pectinacea L. Ahart 2009-8-13 16278 Butte In the channel, about 100 yards east of the diversion structure that controls Mud Creek diversion and Lindo Channel, northeast of Hooker Oak, Upper Bidwell Park, Chico. 69 Comment
  RSA755413  Chamaesyce ocellata subsp. ocellata L. Ahart 2009-6-30 15955 Butte Open area west of the Guardian Rock Trail, about 120 yards north of the Pine Trail, about 3/8 air mile southwest of the intersection of Ten Mile House Road and Highway 32, Upper Bidwell Park, about 10 miles northeast of Chico. 399 Comment
  RSA755764  Lotus corniculatus L. Ahart 2009-5-23 15748 Butte East side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 air mile west of Highway 32, about 10 miles northeast of Chico. 204 Comment
  RSA755769  Rosa pisocarpa L. Ahart 2009-5-30 15800 Butte South of a small stream, meadow, 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
  RSA755770  Scutellaria siphocampyloides L. Ahart 2009-5-30 15808 Butte Southeast side of Guardians Trail, about 10 yards south of Pine Trail, Upper Bidwell Park, about 3/8 air mile southwest of intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 437 Comment
  RSA768995  Allium amplectens Lowell Ahart 2010-5-23 16729 Butte West side of Guardians Trail, north of the small drainage, about 50 yards north of Pine Trial, about 1/4 air mile west of Highway 32, about 9 air miles northeast of Chico. 430 Comment
  RSA769604  Cardamine oligosperma L. Ahart, John Dittes 2009-3-20 1505 Butte Open area along Guardian Rock Trail, about 150 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
  RSA769809  Phytolacca americana L. Ahart, John Dittes, Josephine Guardino 2008-11-8 15435 Butte South side of gravel road and Big Chico Creek, about 300 yards east of the end of Chico Canyon Road, Upper Bidwell Park, Chico. 69 Comment
  RSA774133  Poa bolanderi L. Ahart 2010-9-21 17198 Butte About 50 yards east of the poor dirt road, abut 100 yards west of Big Kimshew Creek, about 1.5 air miles NE of Jones Meadow, about 2.5 air miles SE of Philbrook Reservoir 1918 Comment
  RSA774140  Epilobium ciliatum subsp. glandulosum L. Ahart 2010-9-28 17248 Butte West side of Big Kimshew Creek, about 100 yards east of the poor dirt road, about 1.5 air miles NE of Jones Meadow, about 2.5 air miles SE of Philbrook Reservoir 1887 Comment
  RSA795237  Juncus laccatus L. Ahart 2011-8-19 17641 Butte About 1/2 miles north of the Lost Creek Reservoir Dam, about 4.5 air miles north of Clipper Mills. 1267 Comment
  RSA795241  Asclepias fascicularis L. Ahart 2011-8-17 17629 Butte Near drainage below dam, about 100 yards west of the table at the old homestead and southwest of Ten Mile House Road, Upper Bidwell Park, about 0.75 air miles west of Highway 32, about 10 miles northeast of Chico. 240 Comment
  RSA795699  Epilobium campestre L. Ahart 2012-6-5 18166 Butte On the strand of the reservoir, north of Beatson Hollow, about 1.75 miles northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 6 air miles north of Oroville. 296 Comment
  RSA796044  Leptochloa fusca subsp. fascicularis L. Ahart 2011-10-29 17731 Butte South side of Biggs Princeton Road, about 500 yards west of Riceton Highway, about 1 mile northwest of Biggs. 27 Comment
  SBBG119800  Bromus carinatus var. carinatus L. Ahart 2006-7-16 12976 Butte ca. 20 yds E of poor dirt rd and 100 yds S of cabin, ca. 0.75 air mi NW of Jonesville, ca. 5 air mi NE of Butte Meadows 1569 Comment
  SBBG128789  Digitaria ischaemum L. Ahart 2012-10-20 18494 Butte soil and gravel bar on the S side of Big Chico Crk, ca. 50 yards W of Table 4, W of Cedar Grove, Lower Bidwell Park, Chico 68 Comment
  SD122550  Clarkia rhomboidea Lowell Ahart 1984-6-8 4663 Butte At the Ponderosa Dam, ca. 2 miles NW of Forbestown; Yellow Pine Forest, 370 Comment
  SD130983  Monochoria vaginalis Lowell Ahart 1981-9-19 3193 Butte Butte County Rice Experiment Station 35 Comment
  SD131006  Bulbostylis capillaris Lowell Ahart 1980-7-20 2472 Butte At Big Bald Rock. 1100 Comment
  SEINET10586772  Carex bolanderi Lowell Ahart 2010-6-12 Ahart 16796 Butte T22N, R2E, northwest 1/4 Section 35. About 150 yards east of Ten Mile House Road, about 3.4 mile (air) west of Highway 32, about 9 miles (air) northeast of Chico. 238 Comment
  SEINET10662355  Festuca occidentalis Lowell Ahart 2007-5-29 Ahart 13942 Butte T21N, R6E, Section 28. On the south side of the Dome Trail, trail leads to the Middle Fork of the Feather River, at the trailhead which is 3/10 mi E of Bean Creek Road, about 2 miles (air) NE of Big Bald Rock, about 16 mi (air) NE of Oroville. 844 Comment
  SEINET10828947  Carex luzulina var. ablata Lowell Ahart 2010-9-21 Ahart 17219 Butte T25N, R5E, northeast 1/4 Section 29. 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. 1918 Comment
  SEINET10943915  Vicia villosa subsp. varia Lowell Ahart 2005-4-14 Ahart 11701 Butte T18N, R2E, southeast 1/4 Section 36. The tip of a 3-4 foot long stem, on damp good soil, east of the railroad tracks, north of Spruce Street, Gridley. 28 Comment
  SEINET13709788  Cyperus difformis Lowell William Ahart, Lowell William Ahart 2002-1 9930 Butte E Side Cherokee Rd., 1 Mi. N of Oroville (39 Deg 31'49.5"N, 121 Deg 33'15"W) 427 Ft. 130 Comment
  SEINET13711425  Lindernia dubia Lowell William Ahart, Lowell William Ahart 1999-1 8131 Butte 12 Mi (Air) SW of Chico, 2 Mi SE of Ordbend, Sacramento River Comment
  SEINET263348  Avena fatua Lowell Ahart 1989-5-10 6218 Butte Ca 1/12 miles NW of the West Branch Bridge across Lake Oroville; near the end of the dirt road that leads to Lake Orovil 271 Comment
  SEINET3450851  Carex densa Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2003-5-27 10220 Butte Chico, Chico, about 100 yards west of the dirt road, west of Diversion Dam on Big Chico Creek, west of Parking area L, Upper Bidwell Park, about 3.5 miles east of Manzanita Avenue, Ohio 120 Comment
  SEINET4896961  Cyperus flavescens L. Ahart, V. H. Oswald 1999-8-13 8143 Butte 12 miles SW of Chico. Legal: T20N R1W 32 Comment
  SEINET6830746 Image available Echinochloa crus-galli L. Ahart 1984-9-17 4792 B Butte Peter Ahart Ranch, ca. 2.3 mi N and 0.3 mi E of Honcut, ca. 12 mi S of Oroville 50 Comment
  UC1543895  Juncus leiospermus var. ahartii Lowell Ahart 1978-5-1 1692 Butte Peter Ahart Ranch Honcut 50 Comment
  UC1562290  Lipocarpha micrantha Lowell Ahart 1990-7-4 6547 Butte about 1/2 mi sw of the Enterprise Bridge across Lake Oroville (along McCabe Creek); , McCabe Creek 243 Comment
  UC1562363  Hieracium argutum Lowell Ahart 1990-7-19 6572 Butte about 5 mi ne Forbestown (on steep road cut at s side of road); Forbestown Reservoir (Dam) 457 Comment
  UC1562384  Cordylanthus tenuis subsp. tenuis Lowell Ahart 1990-8-15 6589 Butte about 1/2 mi nw Enterprise Bridge across Lake Oroville (on e side of Enterprise Boat Launch parking area) 335 Comment
  UC1562396  Coronopus didymus Lowell Ahart 1990-5-28 6501 Butte about 2 1/2 mi n.e. East Gridley (along edges of Palm Avenue, about 1/12 mi. e. of Larkin Road) 30 Comment
  UC1562408  Scleranthus annuus subsp. annuus Lowell Ahart 1990-6-16 6515 Butte about 1/2 mi sw of the Enterprise Bridge across Lake Oroville (below the high water line of Lake Oroville) 243 Comment
  UC1562413  Monardella villosa subsp. villosa Lowell Ahart 1990-5-28 6502 Butte South of Palm Avenue, about 1/4 mile east of Larkin Road, about 2 1/2 miles north-east of East Gridley. 30 Comment
  UC1562484  Eragrostis pilosa var. pilosa Lowell Ahart 1990-7-4 6544 Butte about 1/2 mi sw Enterprise Bridge across Lake Oroville (across Lake Oroville, along McCabe Creek); below high water line Lake Oroville 243 Comment
  UC1594537  Pseudognaphalium californicum Lowell Ahart 1992-8-2 6910 Butte about 0.5 mi n of Flea Valley (about 4.5 mi (air) ne of Concow Reservoir, e of the intersection) 1158 Comment
  UC1594541  Lupinus microcarpus var. densiflorus Lowell Ahart 1992-5-9 6762 Butte about 2 air mi n Oroville (on the n side of the Thermalito Diversion Pool); Lake Oroville Recreation Area 76 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
  UC1594711  Phyla nodiflora var. nodiflora Lowell Ahart 1992-7-23 6832 Butte about 1 1/4 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
  UC1594724  Epilobium densiflorum Lowell Ahart 1992-7-29 6890 Butte slopes about 1 mi ne Carr Mine (about 3/4 mi nw of Lotts Lake) 1798 Comment
  UC1594729  Luzula comosa var. laxa Lowell Ahart 1992-8-26 6845 Butte About 1/2 mile north of the Carr Mine about 2 (air) miles south of Snow Mountain 1767 Comment
  UC1609042  Luzula parviflora Lowell Ahart 1993-7-23 7108 Butte about 6 air mi ne of Feather Falls (about 1/8 mi s of campgrounds on the large gravel bar along Fall River); s of Fall River 1036 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
  UC1609068  Madia elegans Lowell Ahart 1993-6-20 6998 Butte about 1 air mi nw Lost Creek Reservoir Dam; Mooreville Ridge, Jackass Flat 1158 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
  UC1609318  Navarretia leptalea subsp. leptalea Lowell Ahart 1993-6-26 7035 Butte about 1 (air) mi nw Lost Creek Reservoir Dam (Jackass Flat, Mooreville Ridge); nw of Lost Creek Reservoir Dam, Mooreville Ridge, Jackass Fl 1158 Comment
  UC1609334  Silene bernardina Lowell Ahart 1993-7-29 7113 Butte about 2 mi e Bald Mountain (about 6 air mi ne of Stirling City); e of Bald Mountain, ne of Stirling City 1524 Comment
  UC1609342  Carex bolanderi Lowell Ahart 1993-6-26 7008 Butte about 1/4 mi w Lost Creek Reservoir (on the n side of the dirt road) 1036 Comment
  UC1609368  Torilis arvensis Lowell Ahart 1993-6-26 7044 Butte ca. 1.25 airmiles n.w. Lost Creek Reservoir (ca. 0.25 mi. n. of Jackass Flat, Mooreville Ridge); Mooreville Ridge 1188 Comment
  UC1609418  Lotus incanus Lowell Ahart 1993-6-26 7024 Butte about 1 mi w Lost Creek Reservoir (on w side of the dirt road); Mooreville Ridge 1188 Comment
  UC1609442  Monardella sheltonii Lowell Ahart 1993-7-6 7062 Butte about 1 air mi nw Lost Creek Reservoir Dam; Mooreville Ridge, Jackass Flat 1158 Comment
  UC1609495  Juncus acuminatus Lowell Ahart 1993-11-1 7273 Butte ca. 3 1/4 mi. n.w. Biggs (on Rice Experiment Station, on s. side of Butte City Hwy., e. of S.P.R.R., w. of Riceton Rd.); Rice Experiment Station 30 Comment
  UC2026856  Comandra umbellata subsp. californica Lowell Ahart 2012-6-28 18246 Butte At the base of Pole AP#3, where the Humboldt Trail comes out to the old road and Highway 32, southeast part of Upper Bidwell Park, northeast of Chico. Foothill Woodland. Comment
  UC2026857  Eucalyptus Lowell Ahart 2012-10-12 18484 Butte On the south side of the paved park road, about 50 yards east of the east side of the Deer Pen, east of the intersection of Chico Canyon Road (E 8th Street) and Forest Avenue, 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
  UCD102780  Vitis californica L. Ahart 1976-5-21 1113 Butte North Honcut Creek, Peter Ahart Ranch, Honcut. 45 Comment
  UCD169268  Juncus tenuis Lowell Ahart 2008-6-2 14804 Butte On the north side of the South Fork of the Feather River. About 50 yards east of where Sucker Creek enters the South Fork of Feather River. About 1/4 mile northwest of the Ponderosa Dam. 243 Comment
  UCD169896  Geranium purpureum Lowell Ahart 2008-5-12 14762 Butte On the east side of Ponderosa Way, about 1 mile (air) southwest of the Ponderosa Dam, about 2 1/4 miles (air) northwest of Forbestown 670 Comment
  UCD169897  Brassica napus Lowell Ahart 2009-4-26 15607 Butte On the east side of Highway 99, south of the wash, about 1/2 mile south of the stop light at the intersection, about 1 mile south of Butte Creek, about 3 miles south of Chico. 60 Comment
  UCSB63849  Deschampsia cespitosa Ahart, Lowell 1997-8-1 Butte Bottom of Little Kimshew Creek, Snow Meadow; 0.25 mi E of Table Mtn, 8 mi by air SE of Stirling Cirty 1524 Comment
  UCSC008326  Plantago erecta Lowell Ahart 2012-4-9 17838 Butte Northwest of South Rim Trail, south part of Upper Bidwell Park, about 2-1/4 (air) miles northeast of Chico. 142 Comment
  UCSC010670  Trifolium phaeocephalum Lowell Ahart 2015-3-27 19973 Butte 400 yards southeast of Coal Canyon Falls, about 1 1/2 miles northwest of the improved parking area, North Table Mountain, about 8 miles north of Oroville 398 Comment
  UCSC011157  Trifolium variegatum Lowell Ahart 2006-5-3 12561 Butte 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 north of Oroville 391 Comment
  CAS-BOT-BC112065  Eleocharis quinqueflora Lowell Ahart 1987-4-30 5496 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 1/4 miles east of Honcut. 39 Comment
  CAS-BOT-BC114077  Cyperus squarrosus Lowell Ahart 1974-7-1 s.n. Butte Bottom of a small wash, Peter Ahart Ranch, Honcut. 45 Comment
  CAS-BOT-BC131913  Allium Lowell Ahart 1978-5-24 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC132078  Allium peninsulare var. peninsulare Lowell Ahart 1977-5-22 s.n. Butte Peter Ahart Ranch, Honcut, along North Honcut Creek 50 Comment
  CAS-BOT-BC153339  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
  CAS-BOT-BC171464  Oenothera campestris Lowell Ahart 1988-5-30 6019 Butte Near the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  CAS-BOT-BC178460  Astragalus gambelianus Lowell Ahart 1981-4-9 2751 Butte Near North Honcut Creek on the Peter Ahart Ranch, about 1 mile north and 3 miles east of Honcut. 50 Comment
  CAS-BOT-BC202419  Euphorbia ocellata Lowell Ahart 1976-7-4 s.n. Butte Peter Ahart Ranch, Honcut 150 Comment
  CAS-BOT-BC272092  Centaurea melitensis Lowell Ahart 1982-5-29 3447 Butte Peter Ahart Ranch, about 1 1/2 miles north and 2 1/2 miles east of Honcut 50 Comment
  CAS-BOT-BC275387  Calycadenia truncata var. truncata Lowell Ahart 1980-7-20 2468 Butte Near the Suspension Bridge, Lake Oroville 330 Comment
  CAS-BOT-BC282962  Carduus pycnocephalus Lowell Ahart 1980-5-12 2247 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC288036  Cirsium occidentale var. venustum Lowell Ahart 1980-5-25 2328 Butte Along Swedes Flat Road near Bangor, Sierra Nevada 320 Comment
  CAS-BOT-BC305847  Helminthotheca echioides Lowell Ahart 1986-10-29 5413 Butte Along the edge of Wickman Road, about 1 1/4 mile north of Highway 162, about 2 1/2 miles north-west of Biggs 28 Comment
  CAS-BOT-BC309787  Hemizonia congesta subsp. luzulifolia Lowell Ahart 1982-9-9 3768 Butte About 100 meters north of the Check-in-Station, Gray Lodge, about 12 miles south-west of Gridley 35 Comment
  CAS-BOT-BC329275  Lupinus vallicola Lowell Ahart 1980-5-25 2347 Butte Sierra Nevada. Along Ponderosa Way. 500 Comment
  CAS-BOT-BC341293  Lagophylla glandulosa Lowell Ahart 1977-9-20 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC352920  Lasthenia glaberrima Lowell Ahart 1979-5-11 s.n. Butte Honcut 35 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-BC375764  Stephanomeria virgata Lowell Ahart 1980-7-20 2470 Butte Near the Suspension Bridge, Lake Oroville 330 Comment
  CAS-BOT-BC403994  Urtica Lowell Ahart 1985-7-16 5145 Butte At the south-west corner of the barn, along the road, Jonesville, about 6 miles north-east of Butte Meadows 1569 Comment
  CAS-BOT-BC41349  Draba verna Lowell Ahart 1984-2-27 4497 Butte Honcut. Peter Ahart Ranch. About 12 miles south of Oroville. 50 Comment
  CAS-BOT-BC41351  Draba verna Lowell Ahart 1990-3-19 6424 Butte About 3.5 miles southwest of Oroville. Along the south side of Pacific Heights Road. 36 Comment
  CAS-BOT-BC413702  Persicaria hydropiper Lowell Ahart 1985-11-7 5234 Butte On the bottom of the South Fork of the Feather River, about 300 yards north-west of the Ponderosa Dam. Near Ponderosa Dam, Lake Oroville 277 Comment
  CAS-BOT-BC413705  Persicaria hydropiper Lowell Ahart 1982-10-11 3864 Butte About 1/10 mile west of the Gray Lodge Headquarters, Gray Lodge, about 12 miles south-west of Gridley 35 Comment
  CAS-BOT-BC421620  Rumex crispus Lowell Ahart 1981-5-16 2810 Butte Gray Lodge, 11 miles southwest of Gridley. Duck ponds on Gray Lodge Waterfowl Management Area. 35 Comment
  CAS-BOT-BC427956  Crassula tillaea Lowell Ahart 1974-4-11 s.n. Butte Honcut 45 Comment
  CAS-BOT-BC435072  Mollugo verticillata Lowell Ahart 1986-11-14 5478 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-BC439774  Claytonia perfoliata Lowell Ahart 1981-4-9 2755 Butte On banks of North Honcut Creek, Peter Ahart Ranch, Honcut. 50 Comment
  CAS-BOT-BC441207  Luzula macrantha Lowell Ahart 1988-3-27 5940 Butte Aboaut 1/10 mile N of the bridge across the North Fork of the Feather River, about 2 miles SE of Jarbo Gap 335 Comment
  CAS-BOT-BC441208  Luzula macrantha Lowell Ahart 1990-3-19 6425 Butte Along the south edge of Pacific Heights Road, about 3.5 miles SW of Oroville 33 Comment
  CAS-BOT-BC445037  Montia linearis Lowell Ahart 1983-6-30 4183 Butte On the east side of the West Branch of the Feather River, about 5 miles east of Stirling City 1150 Comment
  CAS-BOT-BC445585  Echinodorus berteroi Lowell Ahart 1981-7-26 3014 Butte 1/2 mi. south of Gray Lodge Waterfowl Management Headquarters, southwest of Gridley. 35 Comment
  CAS-BOT-BC459402  Geum macrophyllum Lowell Ahart 1980-6-20 2416 Butte Along the South Fork of Feather River, Sierra Nevada 800 Comment
  CAS-BOT-BC482195  Brodiaea elegans subsp. elegans Lowell Ahart 1977-6-13 s.n. Butte Along banks of North Honcut Creek, Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC493366  Camassia quamash subsp. breviflora Lowell Ahart 1988-6-15 6038 Butte North of Forbestown Road, about 1/12 mile east of the intersection of Black Bart Road and Forbestown Road, about 1 mile west of Robinson Mill Road 670 Comment
  CAS-BOT-BC501078  Dichelostemma multiflorum Lowell Ahart 1985-6-17 5057 Butte 100 yards south of the dirt rood, 1 1/2 miles east of Camp 18, about 8 miles northeast of Feather Falls 975 Comment
  CAS-BOT-BC55333  Hirschfeldia incana Lowell Ahart 1985-7-24 5157 Butte At the Generator, at the Forbestown Reservation, about 4.5 miles northeast of Forbestown. 350 Comment
  CAS-BOT-BC60823  Planodes virginica Lowell Ahart 1985-4-1 4871 a Butte Along Wyandotte Creek and Central House Road, northwest of Honcut, about 12 miles south of Oroville. 35 Comment
  CAS-BOT-BC69726  Selaginella wallacei Lowell Ahart 1979-4-3 s.n. Butte Near N. Honcut Creek, Peter Ahart Ranch, Honcut. 50 Comment
  CAS-BOT-BC71864  Polypodium californicum Lowell Ahart 1980-3-26 2056 Butte Along Swedes Flat Road, near Bangor, about 1 mile east of the Bangor-Oroville Highway Comment
  CAS-BOT-BC83267  Myosurus minimus Lowell Ahart 1982-4-29 3389 Butte Gray Lodge, about 12 miles southwest of Gridley. Near the sign in station. 35 Comment
  CAS-BOT-BC8568  Delphinium hansenii Lowell Ahart 1989-5-31 6328 Butte Along Truex Road, near lake Oroville, about 0.25 miles north-west of the West Branch Bridge across Lake Oroville 304 Comment
  CDA3196  Salsola tragus L. Ahart, Vernon Oswald 1999-10-3 8295 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. Comment
  CDA37504  Rotala ramosior L. Ahart 2000-8-28 8667 Butte Northwest edge of a large man made lake, Oroville Wildlife Area, about 1/2 mile west of Oak Grove and Highway 70, about 6 miles (air) southwest of Oroville. Comment
  CDA38970  Cyperus flavescens L. Ahart 2000-8-23 8664 Butte About 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. Comment
  CDA38982  Eleocharis radicans L. Ahart 2000-9-2 8680 -A Butte About 4 miles (air) southwest of Oroville; about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area. Comment
  CDA42742  Marsilea vestita subsp. vestita L. Ahart 2002-5-15 9659 Butte About 100 yards east of Parking Lot 10, Gray Lodge State Wildlife Management Area, about 4 miles (air) southwest of Gridley. Comment
  JEPS103253  Marsilea vestita subsp. vestita Lowell Ahart 2002-5-15 9659 Butte Gridley; ; <coords cont.> SE 1/4 Sect 17; 100 yds SW of Parking Lot 10, Gray Lodge State Wildlife Management Area, 4 mi SW of Gridley 22 Comment
  JEPS103303  Limosella aquatica Lowell Ahart 2002-4-14 9483 Butte Area between the Railroad and the Midway Road, 50 yards S of Nelson Dlavo Road, in Nelson. 36 Comment
  POM362159  Madia exigua L. Ahart 1984-6-8 4666 Butte At the Ponderosa Dam, ca. 2 mi NW of Forbestown 370 Comment
  POM362394  Malacothrix floccifera L. Ahart 1984-6-8 4670 Butte At the Ponderosa Dam, ca. 2 mi NW of Forbestown 370 Comment
  RSA325941  Juncus balticus subsp. ater L. Ahart 1984-5-6 4586 Butte Along North Honcut Creek, Peter Ahart Ranch, ca. 1.3 miles N and 3 miles E of Honcut; ca. 12 miles S of Oroville. 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
  SBBG121549  Juncus ensifolius L. Ahart 2007-7-15 14303 Butte E side of Encina Grand Rd (Bloomer Hill Rd), ca. 50 yards N of the home, ca. 0.25 W of Bloomer Hill 808 Comment
  SBBG121599  Trifolium microcephalum L. Ahart 2007-4-30 13709 Butte N side of Jordan Hill Rd, ca. 2 mi NW of Concow Crk, ca. 2 mi NW of Concow Reservoir 484 Comment
  SBBG128281  Athysanus pusillus L. Ahart, J. Dittes 2009-3-20 15498 Butte open area along the Guardian Rock Trail, ca. 150 yards SW of the Ten Mi House Rd Trail, ca. 300 yards W of Hwy 32, W of the intersection of Hwy 32 and Ten Mi House Rd, upper Bidwell Park, ca. 10 mi NE of Chico 407 Comment
  SBBG128428  Juncus laccatus L. Ahart 2011-8-19 17641 Butte ca. 0.5 mi N of the Lost Crk Reservoir Dam, ca. 4.5 mi N of Clipper Mills 1266 Comment
  SBBG128457  Castilleja attenuata L. Ahart 2012-4-17 17875 Butte ca. 100 yards S of where the rd turns N, ca. 0.5 mi W of Pacific Heights Rd, Oroville Wildlife Area, ca. 5 mi SW of Oroville 35 Comment
  SBBG128720  Erigeron philadelphicus var. philadelphicus L. Ahart 2012-5-25 18114 Butte NW of intersection of W Frances Willard Avenue and Arcadian Avenue, one block S of Chico High School, Chico 59 Comment
  SBBG128803  Asclepias speciosa L. Ahart 2013-6-11 18799 Butte wet meadow ca. 10 yards N of Forbestown Rd, ca. 150 yards E of the intersection of Forbestown Rd and Black Bart Rd, ca. 3.25 mi (air) SW of Forbestown 737 Comment
  SD122577  Penstemon laetus var. leptosepalus Lowell Ahart 1984-6-8 5679 Butte Along the dirt road near the water tower, ca. 1 mi E of Ponderosa Dam, ca. 2 mi N of Forbestown 474 Comment
  SD257095  Carex cyrtostachya Lowell Ahart 2000-7-7 8558 Butte On the north side of Lumpkin Ridge Road, upper west branch of Know-nothing Creek, ca. 1.0 mile southwest of the intersection of Lumpkin Ridge Road, road to Fall River and the County Road; Ca. 4.0 air miles northeast of Feather Falls. 1219 Comment
  SEINET10448633  Caulanthus lasiophyllus var. lasiophyllus Lowell Ahart 1991-5-8 Ahart 6650 Butte Peter Ahart Ranch, about 1 1/2 miles north and 2 1/4 miles east of Honcut, about 12 miles southeast of Oroville. Foothill Woodland. T17N R4E S2. 61 Comment
  SEINET10451995  Lotus nevadensis Lowell Ahart 1983-5-28 Ahart 4016 Butte Along trail to Feather Falls, ca. 5 mi n of the town of Feather Falls. Yellow Pine Forest; 600 m. 600 Comment
  SEINET10452495  Trifolium ciliolatum Lowell Ahart 1985-4-24 Ahart 4885 Butte Along the steep sides of North Honcut Creek, Peter Ahart Ranch, about 1 and 1/4 miles north and 3 miles east of Honcut, about 12 miles south of Oroville. Comment
  SEINET10453172  Clarkia unguiculata Lowell Ahart, Peter Ahart 1983-6-30 Ahart 4170 Butte T21N R4E ne sec 11. Dark Canyon, along old Hwy 40, ca. 4 mi s of Jarbo Gap, ne of Oroville. Foothill Woodland; 350 m. 350 Comment
  SEINET10460724  Heterocodon rariflorum Lowell Ahart 1982-6-15 Ahart 3572 Butte On a lava cap, about 1.5 miles east of Camp 18, about 8 miles east of Feather FALls 1000 Comment
  SEINET10464754  Githopsis specularioides Lowell Ahart 1985-5-15 Ahart 4967 Butte West of Lunt Road, about 1/2 mile north of the inter- section of Lunt Road and Highway 70, north of Yankee Hill, N of Oroville. 503 Comment
  SEINET10469608  Calochortus tolmiei Lowell Ahart 1985-5-15 Ahart 5000 Butte 1/8 mile east of the dirt road, about 1 1/2 miles north-east of Concow of Reservoir. Comment
  SEINET10470042  Goodyera oblongifolia Lowell Ahart 1991-9-19 Ahart 6728 Butte Near where the two branches of Wildcat Creek come together, about 2 miles northwest of Four Trees, about 2 miles west of the Oroville-Quincy Highway, about 2 miles northeast of Coyote Gap. Yellow Pine Forest. T23N R6E NW/S29. 1219 Comment
  SEINET10470235  Pellaea mucronata Lowell Ahart, James D. Jokerst 1985-3-24 Ahart 4855 Butte Serpentine Point, west of Yankee Hill. Comment
  SEINET10474014  Sonchus tenerrimus Lowell Ahart 1984-11-1 Ahart 4832 Butte On damp red soil in garden on Peter Ahart Ranch, ca. 1.5 mi N and 1 mi E of Honcut, ca. 12 mi S of Oroville. 50 m elev. 50 Comment
  SEINET10474656  Evax caulescens Lowell Ahart 1983-5-12 Ahart 3975 Butte Along the power line, ca. 0.5 mi ne of jct of Hwy 99 and Pentz Rd, ca. 16 mi s of Chico. Valley Grassland; 65 m. 65 Comment
  SEINET10477017  Lithocarpus densiflorus Lowell Ahart, Peter Ahart 1983-7-24 Ahart 4203 Butte T19N R7E sec 6. Ca. 2 mi sw of the Forbestown Reservoir, ca. 3 mi ne of Forbestown. Yellow Pine Forest; 550 m. 550 Comment
  SEINET10479005  Chenopodium album Lowell Ahart 1990-9-30 Ahart 6609 Butte On the south side of the East Fork of Canyon Creek, below the high water line of Lake Oroville, about 1/8 mile north-west of the Canyon Creek Bridge across Lake Oroville. Foothill Woodland (destroyed). T20N R5E SW/S16. 244 Comment
  SEINET10479674  Polygonum punctatum Lowell Ahart 1990-10-3 Ahart 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. Foothill Woodland (destroyed). T20N R5E SW/S16. 259 Comment
  SEINET10493562  Chamaesyce Lowell Ahart 1990-10-3 Ahart 6617 Butte On the bottom of the East Fork of the Canyon Creek, below the high water line of Lake Oroville, about 1/4 mile north-east of the Canyon Creek Bridge across Lake Oroville. Foothill Woodland (destroyed). T20N R5E NW/S16. 259 Comment
  SEINET10497275  Cryptantha flaccida Lowell Ahart 1985-5-6 Ahart 4931 Butte Along Table Mountain Boulevard, south of the Cambell Overflow, 1/2 mile south of the inter- section of Highway 70 and 149, about 7 miles north of Oroville. Comment
  SEINET10498895  Mentha pulegium Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4156 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
  SEINET10500637  Galium parisiense Lowell Ahart 1985-6-17 Ahart 5062 Butte Lumpkin Ridge, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. Comment
  SEINET10507089  Agrostis gigantea Lowell Ahart 1985-11-7 Ahart 5235 Butte Lake Oroville, on the north side of the South Fork of the Feather River, about 200 yards north-west of the Ponderosa Dam. 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
  SEINET10507667  Bromus madritensis Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4078 Butte T20N R5E sec 6. Along Bloomer Hill Rd, ca. 3/4 mi w of Oroville-Quincy Hwy, ca. 15 mi ne of Oroville. Foothill Woodland; 425 m. 425 Comment
  SEINET10508290  Poa bolanderi Lowell Ahart 1985-7-16 Ahart 5147 Butte Along Willow Creek, near the Section Corner of Sections 17, 16, 20, and 21, about 4 miles east of Cherry Hill, about 7 miles north-east of Butte Meadows. 1829 Comment
  SEINET10508318  Poa tenerrima Lowell Ahart 1983-4-10 Ahart 3930 Butte Sides and bottoms of small vernal pools, near the steel power line, ca. 0.5 mi ne of jct of Hwy 99 & Pentz Rd, ca. l6 mi s of Chico. Valley Grassland; 65 m. 65 Comment
  SEINET10508335  Scribneria bolanderi Lowell Ahart 1983-5-12 Ahart 3976 Butte Along the power line, ca. 0.5 mi ne of jct of Hwy 99 and Pentz Rd, ca. 16 mi s of Chico. Valley Grassland; 65 m. 65 Comment
  SEINET10508594  Trisetum canescens Lowell Ahart 1991-9-19 Ahart 6727 Butte Near where the two branches of Wildcat Creek come together, about 2 miles northwest of Four Trees, about 2 miles west of the Oroville-Quincy Highway, about 2 miles northeast of Coyote Gap. Yellow Pine Forest. T23N R6E NW/S29. 1219 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
  SEINET10531065  Calocedrus decurrens Lowell Ahart, Peter Ahart 1985-9-15 Ahart 5168 Butte On dry lava cap, about 2 miles west of Sly Creek Reservoir, east of the intersection of Golden Trout Crossing road on Reville Ridge. 915 Comment
  SEINET10537600  Stellaria crispa Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4741 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
  SEINET10548094  Penstemon personatus Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4761 Butte About 1/2 mile east of Bald Mountain, about 5 miles north-east of Stirling City. Comment
  SEINET10549443  Castilleja pruinosa Lowell Ahart 1985-5-15 Ahart 5002 Butte 1/8 mile east of the dirt road, about 1 1/2 miles north-east of Concow of Reservoir. Comment
  SEINET10572739  Claytonia rubra Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4743 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
  SEINET10657849  Poa bulbosa Lowell Ahart 1987-5-6 Ahart 5561 Butte On dry bare disturbed soil along the road, at the Poe Power House along the North Fork of the Feather River, about 2 miles south-east of Jarbo Gap. Comment
  SEINET10824302  Penstemon azureus var. azureus Lowell Ahart 1987-5-9 Ahart 5580 Butte Along Pulga Road, about 1/4 mile West of Bardees Bar along the North Fork of the Feather River, about 2.5 miles South-West of Pulga. 366 Comment
  SEINET10829502  Solanum umbelliferum Lowell Ahart 1987-5-9 Ahart 5599 Butte Along Pulga Road, about 0.5 mile SW of Bardees Bar along the North Fork of the Feather River about 3 miles SW of Pulga. 366 Comment
  SEINET10839186  Erigeron inornatus var. viscidulus Lowell Ahart, Peter Ahart 1983-7-24 Ahart 4206 Butte T20N R7E ne sec 32. At the Forbestown Reservoir, ca. 5 mi ne of Forbestown. Yellow Pine Forest; 450 m. 450 Comment
  SEINET10841528  Streptanthus campestris Lowell Ahart 1983-8-16 Ahart 4283 Butte Near Humboldt Rd, ca. 3 mi sw of Butte Meadows. Yellow Pine Forest; 1450 m. 1450 Comment
  SEINET10868335  Bromus commutatus Lowell Ahart 1988-5-30 Ahart 6031 Butte Hairy Chess, On damp disturbed soil, near a seep, about 1/12 mile N of the brige across the North Fork of the Feather River, along Poe Power House Road, about 2 miles SE of Jarbo Gap. 338 Comment
  SEINET10871334  Cotoneaster pannosus Lowell Ahart 1991-5-31 Ahart 6658 Butte Along the Dan Beebe Trail in Lake Oroville Recreation Area, between Canyon Drive and Oroville Dam Blvd. East, southwest of Oroville Dam. Foothill Woodland. T19N R4E c/s/S2.f 213 Comment
  SEINET10887531  Poa annua Lowell Ahart 1987-5-6 Ahart 5559 Butte On dry sand and silt, 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
  SEINET10901958  Agrostis scabra Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4220 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
  SEINET10907336  Brassica campestris Lowell Ahart 1983-2-21 Ahart 3903 Butte Peter Ahart Ranch, ca. 3 mi ne of Honcut. Valley Grassland; 35 m. 35 Comment
  SEINET10912569  Agrostis avenacea Lowell Ahart 1986-9-11 Ahart 5468 Butte On dry red gravelly soil, on the bottom of a pond, about 1/10 mile S of the clay burrow for oroville Dam, 1/4 mile E of Larking Road, about 6 miles SW of Oroville 37 Comment
  SEINET10937983  Chaenactis glabriuscula var. megacephala Lowell Ahart 1985-5-15 Ahart 4968 Butte West of Lunt Road, about 1/2 mile north of the inter- section of Lunt Road and Highway 70, north of Yankee Hill, N of Oroville. Comment
  SEINET10939830  Sanicula crassicaulis Lowell Ahart 1984-4-3 Ahart 4540 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
  SEINET10954137  Eragrostis mexicana subsp. virescens Lowell Ahart 1999-10-28 Ahart 8306 Butte T20N, R1W, Section not surveyed. Large disturbed area along the east side of the Sacramento River, northwest of Parrott Landing, aout 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  SEINET10962510  Mimulus guttatus Lowell Ahart 1985-6-17 Ahart 5056 Butte Lumpkin Ridge, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. Comment
  SEINET10969139  Cryptantha flaccida Lowell Ahart 1984-5-18 Ahart 4607 Butte T17N R4E. Peter Ahart Ranch, ca. 1.5 mi NE of Honcut, ca. 12 mi S of Oroville. Valley Grassland; 50 m. 50 Comment
  SEINET10970329  Rubus leucodermis Lowell Ahart, Peter Ahart 1985-7-9 Ahart 5120 Butte About 1/4 mile south of the bridge across Fall River, east of Fall River, about 1/2 mile west of Lumpkin Ridge Road, about 2 1/2 miles north-east of Camp 18, abut 9 miles northeast of Feather Falls. Comment
  SEINET11688338  Agrostis scabra L. Ahart, Ahart, P. 1984-1 4738 Butte ca 1.5 mi SE of Bald Mountains, 0.75 mi W of Oak Point, ca 4 mi NE of Stirling City 1500 Comment
  SEINET12216556  Philadelphus lewisii subsp. californicus L. Ahart, Ahart, P. 1983-1 4080 Butte along Bloomer Hill Rd, ca 0.75 mi W of Oroville-Quincy Hwy, ca 15 mi NE of Oroville 425 Comment
  SEINET12329450  Cryptantha affinis L. Ahart, Ahart, P. 1984-1 4708 Butte about 2 mi SW of Forbestown Diversion Dam, NE of Forbestown Comment
  SEINET13710151  Cyperus acuminatus Lowell William Ahart, Lowell William Ahart 2000-1 8688 Butte Pond on E Side Sacramento River, NW of Parrott Landing, 1 Mi SE ord Ferry, 12 Mi SW Chick Comment
  SEINET13710512  Platanthera sparsiflora Lowell William Ahart, Lowell William Ahart, Peter L. Ahart 1984-1 4757 Butte 5 Mi. NE Stirling City, 0.5 Mi. E Bald Mtn, 1750 M 1750 Comment
  SEINET2444419  Allophyllum divaricatum Lowell Ahart 1991-6-22 6662 Butte Below the high water line of Lake Oroville, N of Springtown Road, Lake Oroville. Foothill Woodland (destroyed). 244 Comment
  SEINET260317  Polygonum lapathifolium Lowell Ahart 1986-11-9 5452 Butte Ca 1/10 mi S of the clay burrow for Oroville Dam 1/4 mi ESW of Oroville 1/4 mi E of Larkin Rd 37 Comment
  SEINET5736943 Image available Lotus micranthus Lowell Ahart 1985-1 5033 Butte Lake Oroville, 0.125 mile E of Enterprise Launch Area and about 0.5 mile W of the Enterprise Bridge across Lake Oroville, NE of Oroville.; Oroville 274 Comment
  SEINET5743429 Image available Apocynum cannabinum Lowell Ahart 1985-1 5072 Butte About 7 miles SE of Oroville. Along the edge of the Oroville-Bangor Highway, 100 yards east of the intersection with Wyandotte Miners Ranch Road.; Oroville Comment
  SEINET6655536  Lotus nevadensis Lowell Ahart 1985-5-31 5039 Butte At the Enterprise Launch Area, about 3/4 mile west of the Enterprise Bridge across Lake Oroville, north-east of Oroville. Yellow Pine Forest.; 0 274 Comment
  SEINET7587010 Image available Eleocharis quinqueflora Lowell Ahart 2000-5-28 8408 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 1/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 37 Comment
  UC1563273  Calycadenia fremontii Lowell Ahart and Mary Sue Taylor 1990-8-28 6585 Butte 3 mi e, s side of Hwy 32 Chico 182 Comment
  UCD110323  Hypericum anagalloides L. Ahart 1973-6-16 251 Butte Peter Ahart Ranch, Honcut. 45 Comment
  UCD114731  Brassica nigra L. Ahart 1982-5-29 3449 Butte N of Peter Ahart Ranch, ca. 2.5 mi ne of Honcut. Comment
  UCD128191  Yabea microcarpa Lowell Ahart 1974-4-24 438 Butte along North Honcut Creek, Peter Ahart Ranch, about 1.25 miles north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  UCD136673  Symphyotrichum subulatum var. parviflorum L. Ahart 1982-9-9 3767 Butte 100 meters north of check-in station, Graylodge Wildlife Refuge, 12 miles SW of Gridley. 35 Comment
  UCD169295  Marsilea vestita subsp. vestita Lowell Ahart 2002-5-15 9659 Butte Gray Lodge State Wildfire Management Area, about 4 miles (air) southwest of Gridley. About 100 yards east of Parking Lot 10. 22 Comment
  UCSB63844  Asyneuma prenanthoides Ahart, Lowell 1997-8-1 Butte West side of Little Kimshew Creek, about 1/4 mile east of Table Mountain, about 8 miles (air) northeast of Stirling City; T24N, R5E, Section 4 1371 Comment
  UCSB63914  Kelloggia galioides Ahart, Lowell 1997-8-1 Butte T24N, R5E, northwest 1/4 Section 18; , on the south side of the County Road, southwest of Keyser Creek, about 1 1/2 miles southeast of Bald Mountain, about 6 miles (air) northeast of Stirling City; Yellow Pine Forest 1432 Comment
  UCSB64005  Dysphania ambrosioides Ahart, Lowell; Jokerst, Jim 1981-9-26 Butte Near the Sacramento River, about 6 miles west of Chico 36 Comment
  UCSB64016  Lepidium latifolium Ahart, Lowell 1981-9-10 Butte Near the entrance to the Gray Lodge Waterfowl Management Area; west of Pennington Road; about 12 miles southwest of Gridley 30 Comment
  CHSC112206  Calochortus splendens Lowell Ahart 2013-5-1 18683 Colusa Inner North Coast Range. On the north side of the wash, north side of State Highway 20, just east of Lake County Line, 12.2 mile (air) east-northeast of Clear Lake (town), 17.1 miles (air) west of Williams. 566 Comment
  CHSC112210  Festuca microstachys var. pauciflora Lowell Ahart; John Dittes, Josephine Guardino 2013-4-26 18636 Colusa Inner North Coast Range. On the north side of State Highway 20, just east of Lake County Line, 12.2 mile (air) east-northeast of Clear Lake (town), 17.1 miles (air) west of Williams. 566 Comment
  CHSC112235  Lomatium macrocarpum Lowell Ahart 2013-5-1 18676 Colusa Inner North Coast Ranges. Near a small drainage, north of the of the wash and 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
  CHSC112412  Castilleja foliolosa Lowell Ahart; John Dittes, Josephine Guardino 2013-4-26 18642 Colusa Rocky serpentine outcrop on the north side of State Highway 20, just east of Lake County Line, 12.2 mile (air) east-northeast of Clear Lake (town), 17.1 miles west of Williams. 566 Comment
  CHSC112640  Lessingia ramulosa Lowell Ahart 2013-10-1 19068 Colusa Inner North Coast Range. Near a small drainage, north of the wash and 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
  CHSC113053  Pseudognaphalium luteoalbum Lowell Ahart 2013-10-1 19097 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
  CHSC115382  Castilleja rubicundula subsp. rubicundula Lowell Ahart 2015-4-1 19987 Colusa Along a small drainage, burned over in 2012, rocky serpentine outcrop on the north side of State Highway 20, 1/2 mile east of Lake County Line, 12 miles (air) east-northeast of Clear Lake (town), 17 miles (air) west of Williams. Inner Coast Range. 520 Comment
  CHSC115394  Psilocarphus tenellus Lowell Ahart 2015-4-10 20007 Colusa Along the south edge of Leesville Road, about 1/2 mile east of Leesville, about 12 miles (air) northwest of Williams. 445 Comment
  CHSC84938  Polygonum aviculare Lowell Ahart 2003-10-23 10657 Colusa Along Squaw Creek, just south of East Park Reservoir, about 1/8 mile northwest of Sites Lodoga Road, about 1 mile north of Lodoga, about 21 miles west of Maxwell. 368 Comment
  CHSC84970  Amaranthus californicus Lowell Ahart 2003-10-23 10658 Colusa On the east strand of East Park Reservoir, about 1/8 mile northwest of Sites Lodoga Road, about 1 mile north of Lodoga, about 21 miles west of Maxwell. 368 Comment
  CHSC84983  Mentha spicata Lowell Ahart 2003-10-23 10666 Colusa Along Squaw Creek, just south of East Park Reservoir, about 1/8 mile northwest of Sites Lodoga Road, about 1 mile north of Lodoga, about 21 miles west of Maxwell. 368 Comment
  CHSC94315  Stachys pycnantha Lowell Ahart 2006-8-9 13092 Colusa Gravel bar on the south side of Stony Creek, at Mine Camp, about 3 1/2 miles (air) west of Stonyford. 455 Comment
  CHSC94406  Zeltnera trichantha Lowell Ahart 2006-8-22 13230 Colusa North side and under the bridge across Stony Creek, just north of Stonyford. 347 Comment
  CHSC94407  Madia elegans subsp. densifolia Lowell Ahart 2006-8-22 13229 Colusa North side and under the bridge across Stony Creek, just north of Stonyford. 347 Comment
  CHSC94415  Senecio sylvaticus Lowell Ahart 2006-8-9 13158 Colusa North side and under the bridge across Stony Creek, just north of Stonyford. 347 Comment
  CHSC94465  Melilotus indicus Lowell Ahart 2006-8-9 13168 Colusa North side and under the bridge across Stony Creek, just north of Stonyford. 347 Comment
  CHSC94511  Mentha rotundifolia Lowell Ahart 2006-8-22 13207 Colusa North side and under the bridge across Stony Creek, just north of Stonyford. 347 Comment
  CHSC94524  Centaurea melitensis Lowell Ahart 2006-8-9 13169 Colusa North side and under the bridge across Stony Creek, just north of Stonyford. 347 Comment
  CHSC94988  Urtica dioica subsp. gracilis Lowell Ahart 2006-10-31 13519 Colusa North side and under the bridge across Stony Creek, just north of Stonyford. 347 Comment
  JEPS110060  Mentha spicata var. spicata Lowell Ahart 2006-8-22 13207 Colusa North side and under the bridge across Stony Creek, just north of Stonyford 347 Comment
  JEPS110094  Trichostema laxum Lowell Ahart 2006-8-9 13117 Colusa North side and under the bridge across Stony Creek, just north of Stonyford 347 Comment
  JEPS110186  Chamaesyce serpillifolia subsp. hirtula Lowell Ahart 2006-8-9 13115 Colusa North side and under the bridge across Stony Creek, just north of Stonyford 347 Comment
  JEPS110261  Carex serratodens Lowell Ahart 2006-6-11 12669 Colusa On the east side of an off road trail (Trail 30), about 100 yards south of Fouts Road, about 5 miles (by road) west of Stonyford 613 Comment
  JEPS120807  Stachys albens Lowell Ahart 2013-10-1 19079 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
  JEPS120976  Astragalus gambelianus Lowell Ahart, John Dittes, Josephine Guardino 2013-4-26 18633 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
  JEPS124251  Castilleja foliolosa Lowell Ahart 2015-4-1 19988 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
  RSA0118882  Calycadenia pauciflora Lowell Ahart 2013-10-1 19069 Colusa Inner North Coast Range. North of the wash and 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
  RSA718054  Mentha arvensis L. Ahart 2006-8-9 13090 Colusa On the south side of Stony Ceek, at Mine Camp, about 3.5 miles (air) west of Stonyford. 455 Comment
  RSA718199  Alnus rhombifolia L. Ahart 2006-8-9 13108 Colusa On north side of Stony Creek, at Mine Camp, about 3.5 miles (air) west of Stonyford. 423 Comment
  RSA724892  Bromus arenarius L. Ahart 2006-8-22 13216 Colusa south side of Stony Creek, about 100 yards west of the bridge across Stony Creek, just north of Stonyford. 349 Comment
  RSA725013  Lotus corniculatus L. Ahart 2006-8-9 13129 Colusa North side and under the bridge across Stony Creek, just north of Stonyford. 348 Comment
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Aug 9 2017
  RSA726847  Azolla filiculoides Lowell A. Ahart 2007-7-7 14260 Colusa About 1.25 miles east of River Road, about 17 miles west of Gridley. 20 Comment
  SBBG119875  Bassia hyssopifolia L. Ahart 2003-8-15 10509 Colusa S side of St Hwy 20, ca. 1 mi SW of Williams 27 Comment
  SEINET7581552 Image available Cyperus difformis Lowell Ahart 2006-8-9 13143 Colusa North side and just east of the bridge across Stony Creek, just north of Stonyford. 347 Comment
  UCSC011128  Trifolium obtusiflorum Lowell Ahart 2006-8-9 13130 Colusa North side and under the bridge across Stony Creek, just north of Stonyford 347 Comment
  CHSC116609  Polygonum aviculare Lowell Ahart; Josephine Guardino 2016-4-19 20782 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  CHSC116611  Sagina apetala Lowell Ahart; Josephine Guardino 2016-4-19 20774 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 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
  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
  CHSC112499  Celosia spicata Lowell Ahart 2013-10-22 19182 Glenn Near an old homestead, strand of Stony Gorge Reservoir, about 2 miles south of the dam, about 17 miles (air) northwest of Willows. 248 Comment
  CHSC112664  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 boatlaunch area, west of Butte City. 26 Comment
  CHSC112674  Eleocharis coloradoensis Lowell Ahart 2013-10-19 19163 Glenn Between the river and the large gravel bar, along the west side of the Sacramento River, southwest of the boatlaunch area, west of Butte City. 26 Comment
  CHSC112700  Dysphania ambrosioides Lowell Ahart 2013-10-19 19135 Glenn On the east side of the backwater, along the west side of the Sacramento River, about 300 yards north of the bridge, west of Butte City. 26 Comment
  CHSC113137  Amaranthus californicus Lowell Ahart 2013-10-22 19181 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
  CHSC82784  Eriogonum dasyanthemum Lowell Ahart 2002-8-26 9924 Glenn Near Grizzly Flats, on the strand and on the west side of Black Butte Reservoir, about 3 miles north of the bridge across Stony Creek and the upper reaches of Black Butte reservoir. 142 Comment
  CHSC87873  Lotus corniculatus Lowell Ahart 2004-6-18 11092 Glenn Gravel bar on the north 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
  CHSC87880  Mimetanthe pilosa Lowell Ahart 2004-6-18 11102 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
  CHSC87942  Trifolium obtusiflorum Lowell Ahart 2004-6-18 11095 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
  CHSC87968  Verbascum thapsus Lowell Ahart 2004-6-18 11075 Glenn Bank 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. 178 Comment
  CHSC88050  Bromus arenarius Lowell Ahart 2004-6-30 11148 Glenn On the north side of Grindstone Creek, just east of the deep wash, about 50 yards east of the bridge across Grindstone Creek, about 50 yards east of Road 306 (Elk Creek Newville Road), west of the Grindstone Rancheria Indian Reservation. 190 Comment
  CHSC94682  Datisca glomerata Lowell Ahart 2006-6-15 12758 Glenn On the east side of the creek, about 300 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. 608 Comment
  CHSC94691  Erythranthe guttata Lowell Ahart 2006-6-15 12785 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
  CHSC94737  Cerastium glomeratum Lowell Ahart 2006-6-15 12782 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
  CHSC94741  Packera greenei Lowell Ahart 2006-5-11 12685 Glenn On the east side of Forest Road 18N03, south of an intersection, on Black Diamond Ridge, about 2 miles (air) northeast of the North Fork Campground, about 4 3/4 miles (air) northwest of Stonyford. 944 Comment
  CHSC94751  Plantago lanceolata Lowell Ahart 2006-6-15 12756 Glenn West side of the creek about 250 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. 605 Comment
  CHSC94860  Lathyrus jepsonii var. californicus Lowell Ahart 2006-6-11 12709 Glenn About 50 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
  CHSC94874  Lupinus albifrons var. collinus Lowell Ahart 2006-6-15 12779 Glenn On a gravel bar on the east 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 west-northwest of Stonyford. 595 Comment
  CHSC94879  Lotus corniculatus Lowell Ahart 2006-6-15 12751 Glenn On the west 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
  JEPS106091  Polypogon maritimus Lowell Ahart 2004-6-18 11104 Glenn Gravel bar on the north 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
  JEPS106203  Bromus arenarius Lowell Ahart 2004-6-30 11148 Glenn On the north side of Grindstone Creek, just east of the deep wash, about 50 yards east of the bridge across Grindstone Creek, about 50 yards east of Road 306 (Elk Creek Newville Road), west of the Grindstone Rancheria Indian Reservation 190 Comment
  JEPS106331  Lolium multiflorum Lowell Ahart 2004-6-18 11078 Glenn Gravel bar on the north 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
  JEPS106379  Eleocharis parishii Lowell Ahart 2004-6-18 11071 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 178 Comment
  JEPS108734  Madia gracilis Lowell Ahart 2006-6-15 12767 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
  JEPS108826  Antirrhinum subcordatum Lowell Ahart 2006-6-11 12694 Glenn On the west side of the road, about 1/4 mile past the meadow (north), seep at the start of Black Diamond Creek, about 2 3/4 miles (air) northeast of the North Fork Campground, about 4 miles (air) northwest of Stonyford 722 Comment
  JEPS108916  Eriogonum tripodum Lowell Ahart 2006-6-15 12734 Glenn On the northeast side of Black Diamond Road, about 2 miles west of the paved road. about 4 miles (by road) from Stonyford 582 Comment
  JEPS110070  Stachys ajugoides var. rigida Lowell Ahart 2006-6-11 12716 Glenn About 50 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
  JEPS110228  Adiantum capillus-veneris Lowell Ahart 2006-6-11 12732 Glenn Cliffs, 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 west-northwest of Stonyford 630 Comment
  JEPS110459  Epipactis gigantea Lowell Ahart 2006-6-15 12765 Glenn On the east edge of the creek, about 400 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 608 Comment
  JEPS110463  Collomia diversifolia Lowell Ahart 2006-6-15 12735 Glenn On the south side of Black Diamond Road, about 2 miles west of the paved road. about 4 miles (by road) from Stonyford 582 Comment
  JEPS120605  Glinus lotoides Lowell Ahart 2013-10-22 19189 A Glenn Strand of Stony Gorge Reservoir, about 2 miles south of the dam. about 17 air miles northwest of Willows. Comment
  JEPS120636  Amaranthus albus Lowell Ahart 2013-10-22 19183 Glenn Near an old homestead, on strand of Stony Gorge Reservoir, about 2 miles south of the dam, about 17 air miles northwest of Willows. Comment
  JEPS120658  Cardamine oligosperma Lowell Ahart 2013-10-19 19131 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
  JEPS120660  Rosa californica Lowell Ahart 2013-10-19 19151 Glenn High flood plain west of the Sacramento River, about 300 yards north of the bridge, west of Butte City. Comment
  JEPS120682  Eleocharis macrostachya Lowell Ahart 2013-10-19 19162 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
  JEPS120694  Cyperus erythrorhizos Lowell Ahart 2013-10-19 19160 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
  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
  RSA0114931  Erigeron canadensis Lowell Ahart 2013-10-19 19126 Glenn On the west side of the backwater, along the west side of the Sacramento River, about 200 yards north of the bridge, west of Butte City. (About 100 yards southwest of the GPS point). 26 Comment
  RSA699911  Melilotus indicus L. Ahart 2004-6-18 11094 Glenn Gravel bar on south side of Salt Creek, south of bridge across Salt Creek, on the south side of Newville Rd., about 1/4 mi. west of Newville, about 5 mi. (air) west of Black Butte Reservoir. 204 Comment
  RSA718947  Lathyrus jepsonii subsp. californicus L. Ahart 2006-6-11 12709 Glenn About 50 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. 596 Comment
  RSA724855  Senecio greenei L. Ahart 2006-6-11 12685 Glenn On the east side of Forest Road 18N03, south of an intersection, on Black Diamond Ridge, about 2 miles (air) northeast of the North Fork Campground, about 4 3/4 miles (air) northwest of Stonyford. 945 Comment
  RSA795694  Malvella leprosa L. Ahart 2012-8-24 18430 Glenn The strand of Black Butte Reservoir (west side), about 3 miles north of the bridge across Stony Creek and the upper reaches of Black Butte Reservoir. 136 Comment
  SBBG119816  Adiantum capillus-veneris L. Ahart 2006-6-11 12732 Glenn W side of Forest Rd 18N03, ca. 1.5 air mi NE of the N Fk Cmpgrd, ca. 5.75 mi WNW of Stonyford 630 Comment
  SEINET8273170  Bromus arenarius Lowell Ahart 2004-6-30 11148 Glenn on the north side of Grindstone Creek, just east of the deep wash, about 50 yards east of the bridge across Grindstone Creek, about 50 yards east of Road 306 (Elk Creek Newville Road), west of the Grindstone Rancheria Indian Reservation. 191 Comment
  CDA40706  Verbena lasiostachys var. lasiostachys L. 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. Comment
  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
  CHSC114989  Carex serratodens Lowell Ahart 2015-4-10 20015 Lake 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
  CHSC78144  Euphorbia spathulata Lowell Ahart 2000-6-2 8438 Lake In a meadow near a small wash, 100 feet northeast of Bartlett Springs road, about 400 yards southwest of the radio tower, about 1/4 mile west of Bartlett Springs Road and Walker Ridge Road, about 2 1/2 miles west of Bear Valley. 609 Comment
  CHSC84467  Astragalus clevelandii Lowell Ahart 2003-7-14 10403 Lake Along a small stream, on the west side of the second causeway going southwest of Bartlett Springs Road, Indian Valley Reservoir. 449 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
  CHSC89448  Epilobium brachycarpum Lowell Ahart 2004-10-4 11446 Lake Below the high water line of Indian Valley Reservoir, west of the causeway, in the northwest part of the reservoir, on the west side of Bartlett Springs Road. 446 Comment
  CHSC89540  Cyperus erythrorhizos Lowell Ahart 2004-10-4 11460 Lake Below the high water line of Indian Valley Reservoir, east of the causeway, in the northwest part of the reservoir, on the east side of Bartlett Springs Road (Road M 12). 446 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
  JEPS123896  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2015-4-28 20109 Lake 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. Comment
  JEPS123915  Acmispon denticulatus Lowell Ahart 2015-4-28 20098 Lake 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. Comment
  JEPS98432  Juncus balticus subsp. ater Lowell Ahart 2000-6-2 8435 Lake 2 1/2 mi W of Bear Valley (bottom of a small wash, 100 ft NE of Bartlett Springs Rd, 400 yds SW of radio tower, 1/4 mi W of Bartlett Springs Rd and Walker Ridge Rd) 609 Comment
  RSA702901  Juncus bufonius var. occidentalis L. Ahart 2004-10-4 11438 Lake Below the high water line of Indian Valley Reservoir, east of the causeway, in the northwest part of the reservoir, on the east side of Bartlett Springs Road. 447 Comment
  CHSC105241  Erigeron pumilus subsp. intermedius Lowell Ahart; John Dittes 2010-7-31 16986 Lassen About 3,330 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. 1520 Comment
  CHSC107328  Iris hartwegii subsp. hartwegii Lowell Ahart; John Dittes 2011-6-21 17524 -A Lassen 335 feet northwest of Big Valley Canal, 2.1 miles (air) south of County Road 87, 6.6 miles (air) northeast of Bieber, 7.9 miles (air) west by southwest of Adin, Big Valley. 1264 Comment
  CHSC107997  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
  CHSC108013  Poa bulbosa Lowell Ahart; John Dittes 2011-6-20 17495 Lassen About 40 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
  CHSC108025  Lithophragma glabrum Lowell Ahart; John Dittes 2011-6-20 17488 Lassen Meadow, about 3 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
  CHSC112408  Cardamine pensylvanica Lowell Ahart; John Dittes, Todd Sloat 2013-6-8 18729 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
  CHSC112449  Plectritis macrocera Lowell Ahart; John Dittes, Todd Sloat 2013-6-8 18747 Lassen 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
  CHSC112765  Vicia villosa subsp. villosa Lowell Ahart; John Dittes 2013-7-23 18900 Lassen East side of the road levee, about 100 yards west of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC113069  Navarretia intertexta subsp. intertexta Lowell Ahart; John Dittes 2013-7-22 18869 Lassen Drainage filled with dirt from construction of a pond, 10 yards south of the man made pond, about 140 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC113079  Gnaphalium palustre Lowell Ahart; John Dittes 2013-7-22 18861 Lassen Drainage filled with dirt from construction of a pond, about 30 yards south of the man made pond, about 120 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC115597  Astragalus lemmonii Lowell Ahart; John Dittes 2015-7-14 20336 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
  CHSC115601  Caulanthus major var. nevadensis Lowell Ahart; John Dittes 2015-7-14 30329 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 of Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1267 Comment
  CHSC115832  Glyceria borealis Lowell Ahart; John Dittes 2015-7-14 20326 Lassen In Big Vallley Canal, on the east side of the road along 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. 1269 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
  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
  CHSC117197  Poterium sanguisorba Lowell Ahart; John Dittes 2016-6-7 20998 Lassen On the east side 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
  CHSC117203  Juncus hemiendytus var. hemiendytus Lowell Ahart; John Dittes 2016-6-7 20991 Lassen West edge of pond, 120 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
  CHSC117217  Ancistrocarphus filagineus Lowell Ahart; John Dittes 2016-6-7 21000 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
  CHSC117274  Sagittaria montevidensis subsp. calycina Lowell Ahart; Joh Dittes 2016-7-15 21222 Lassen About 50 yards west of the road and 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
  CHSC117492  Asclepias fascicularis Lowell Ahart; John Dittes 2016-7-13 21150 Lassen Sides of the overflow, about 50 yards north of the dam, 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 of the southern slope of Big Valley. 1289 Comment
  CHSC117519  Epilobium campestre Lowell Ahart; John Dittes 2016-7-13 21128 Lassen West of the pond and along the poor dirt road, 60 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Biebeer, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  CHSC117542  Ventenata dubia Lowell Ahart; John Dittes 2016-7-13 21148 Lassen Scattered along the west edge of the pond, 100 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  CHSC76084  Ericameria nauseosa var. speciosa Lowell Ahart; Vernon H. Oswald 1999-9-13 8201 Lassen On the west side of the dirt road and 1/4 mile south of the sign in station, Honey Lake Wildlife Area, 4 1/2 miles (air) southeast of Standish. 1207 Comment
  CHSC76089  Pyrrocoma lanceolata var. lanceolata Lowell Ahart; Vernon H. Oswald 1999-9-13 8231 Lassen In the field on the north side of the dirt road, Willow Creek is on the south side of the road, about 250 yards east of the sign in station along Highway 139, Willow Creek Wildlife Area. 1463 Comment
  CHSC76097  Suaeda occidentalis Lowell Ahart; Vernon H. Oswald 1999-9-13 8211 Lassen On the edge of a field, just south of the parking area, about 1 mile south of the sign in station, Honey Lake Wildlife Area, 5 1/2 miles (air) southeast of Standish. 1207 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
  CHSC91314  Matricaria discoidea Lowell Ahart; John Dittes 2005-6-1 11895 Lassen Road edge, 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
  CHSC91319  Poa pratensis subsp. pratensis Lowell Ahart; John Dittes 2005-6-1 11848 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
  CHSC91321  Arceuthobium campylopodum Lowell Ahart; John Dittes 2005-6-1 11894 Lassen On the west side of Scott Road, Long Valley, about 4 1/2 miles (air) north of the intersection of Scott Road and Highway 70, 5.9 miles (air) northwest of Hallelujah Junction. 1465 Comment
  CHSC93529  Potentilla gracilis var. fastigiata Lowell Ahart; John Dittes 2005-6-1 11854 Lassen Long Valley, on the west side of the poor dirt road, about 1/2 mile west of Scott Road, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction. 1448 Comment
  CHSC93561  Crepis intermedia Lowell Ahart; John Dittes 2005-6-1 11918 Lassen Long Valley, on the east side of a poor dirt road, about 4 1/2 miles (air) north of the interesection of Scott Road and Highway 70, 6.0 miles (air) northwest of Hallelujah Junction. 1425 Comment
  CHSC93674  Heterocodon rariflorum Lowell Ahart; John Dittes 2005-6-2 11961 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
  CHSC93679  Centaurium tenuiflorum Lowell Ahart; John Dittes 2005-6-2 11977 Lassen Stream edge, Long Valley, about 4 1/2 miles (air) northeast of the intersection of Scott Road and Highway 70, 5.7 miles (air) northwest of Hallelujah Junction. 1408 Comment
  CHSC93682  Mentzelia dispersa Lowell Ahart; John Dittes 2005-6-1 11872 Lassen On the east 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
  CHSC93691  Nemophila parviflora var. austiniae Lowell Ahart; John Dittes 2005-6-1 11898 Lassen On the south 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
  CHSC99105  Navarretia intertexta Lowell Ahart; John Dittes 2008-6-22 15028 Lassen Along a small natural drainage, about 120 yards west of the road levee, 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
  CHSC99285  Salix exigua Lowell Ahart; John Dittes 2008-6-22 15043 Lassen On the bottom of a deep ditch, on the south side of the road levee, open meadow area, in Big Valley, about 2.4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5.4 miles (air) northeast of Bieber. Comment
  CHSC99302  Vicia americana var. americana Lowell Ahart; John Dittes 2008-6-20 14936 Lassen On the levee road, about 100 yards south 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
  CHSC99519  Bromus japonicus Lowell Ahart; John Dittes 2008-6-19 14875 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
  CHSC99538  Plagiobothrys cusickii Lowell Ahart; John Dittes 2008-6-20 14914 Lassen In vernal pools, 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
  CHSC99732  Cardamine oligosperma Lowell Ahart; John Dittes 2008-6-20 14942 Lassen On the levee road, 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
  CHSC99744  Amsinckia menziesii Lowell Ahart; John Dittes 2008-6-22 15042 Lassen On the east side 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
  HSC100804  Polygonum douglasii subsp. spergulariiforme Lowell Ahart, John Dittes 2010-7-31 16979 Lassen 100 yd. NE of where the road crosses Hunsinger Draw, 1.9 (air) mi. NW of Moll Reservoir, 2.8 (air) mi. W of Ash Valley, 8.4 (air) mi. SE of Adin. 1521 Comment
  JEPS107400  Monolepis nuttalliana Lowell Ahart, John Dittes 2005-6-1 11897 Lassen On the south 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
  JEPS107465  Poa pratensis subsp. pratensis Lowell Ahart, John Dittes 2005-6-1 11848 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
  JEPS107838  Carex praegracilis Lowell Ahart, John Dittes 2005-6-1 11877 Lassen about 3/4 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 Comment
  JEPS114632  Calandrinia ciliata Lowell Ahart, John Dittes 2008-6-22 15030 Lassen On the banks of a small natural drainage, about 120 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
  JEPS114650  Amsinckia intermedia Lowell Ahart, John Dittes 2008-6-20 14935 Lassen On the levee road, about 100 yards south 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
  JEPS114753  Trifolium cyathiferum Lowell Ahart, John Dittes 2008-6-22 15025 Lassen On the sides of a small drainage, on the west side of the levee, about 20 yards south of the tall poles, mountain meadow, in Big Valley, about 3.5 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5.5 miles (air) northeast 1260 Comment
  JEPS114769  Plagiobothrys cusickii Lowell Ahart, John Dittes 2008-6-20 14914 Lassen In vernal pools, 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
  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
  JEPS118448  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
  JEPS118454  Alopecurus geniculatus Lowell Ahart, John Dittes 2011-6-20 17504 Lassen In the small stream, about 80 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
  JEPS119648  Rorippa curvisiliqua Lowell Ahart, John Dittes 2012-7-9 18292 Lassen Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. Comment
  JEPS121268  Eleocharis macrostachya Lowell Ahart 2013-7-22 18848 Lassen W margin of duck field, about 30 yards S of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley. Comment
  JEPS121278  Epilobium brachycarpum Lowell Ahart 2013-7-22 18844 Lassen W margin of duck field, about 20 yards SE of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley. Comment
  JEPS123846  Distichlis spicata Lowell Ahart, John Dittes 2015-7-14 20333 Lassen About 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. Comment
  JEPS124384  Sonchus asper subsp. asper Lowell Ahart, John Dittes 2015-7-13 20304 Lassen Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. Comment
  JEPS124392  Bromus japonicus Lowell Ahart, John Dittes 2015-7-13 20310 Lassen Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. Comment
  JEPS126564  Juniperus occidentalis Lowell Ahart, John Dittes 2016-6-7 20974 Lassen About 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 the southern slope of Big Valley. Comment
  JEPS127243  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 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
  RSA0035917  Collinsia parviflora Lowell A. Ahart, John Dittes 2008-6-20 14916 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
  RSA0037006  Swertia albicaulis var. albicaulis Lowell A. Ahart, John Dittes 2008-6-19 14881 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
  RSA0105585  Epilobium ciliatum subsp. ciliatum Lowell Ahart, John Dittes 2013-7-22 18856 Lassen 30 yards south of the man made pond, about 120 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  RSA0105591  Juncus nevadensis var. nevadensis Lowell Ahart, John Dittes 2013-7-23 18906 Lassen On the southwest side of a man made pond, about 160 yards northwest of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  RSA715978  Phlox speciosa subsp. occidentalis L. Ahart, John Dittes 2005-6-2 11928 Lassen about 1.4 miles 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. 1499 Comment
  CDA34688  Chenopodium ambrosioides var. ambrosioides L. Ahart 2009-11-12 16516 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
  CDA34759  Juncus acuminatus L. Ahart 2009-11-12 16531 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. Comment
  CHSC103429  Dittrichia graveolens Lowell Ahart 2009-11-12 16514 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
  CHSC103456  Cyperus eragrostis Lowell Ahart 2009-11-12 16528 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
  CHSC103462  Cyperus erythrorhizos Lowell Ahart 2009-11-12 16529 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
  CHSC112297  Euphorbia spathulata Lowell Ahart; John Dittes, Josephine Guardino 2013-4-26 18618 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
  JEPS121139  Petasites frigidus var. palmatus Lowell Ahart, John Dittes, Josephine Guardino 2013-4-24 18572 Mendocino Redwood forest S of Mountain View Road, 1.9 air miles W of Boonville. Comment
  CHSC98828  Sonchus asper subsp. asper Lowell Ahart; John Dittes, Josephine Guardino 2008-4-13 14687 Merced On dry soil, along the fence, about 40 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
  CHSC98846  Crassula aquatica Lowell Ahart; John Dittes, Josephine Guardino 2008-4-11 14617 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
  CHSC98856  Sagina apetala Lowell Ahart; John Dittes, Josephine Guardino 2008-4-12 14672 Merced A high area in a vernal pool, 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
  CHSC98857  Erythranthe latidens Lowell Ahart; John Dittes, Josephine Guardino 2008-4-12 14673 Merced A high area in a vernal pool, 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
  CHSC98875  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
  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
  CHSC99167  Juncus ambiguus Lowell Ahart; John Dittes, Josephine Guardino 2008-4-11 14648 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
  CHSC99894  Persicaria hydropiperoides Lowell Ahart; John Dittes 2008-8-21 15245 Merced On the bottom 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
  HSC103925  Trifolium depauperatum var. truncatum L. Ahart, John Dittes, Josephine Guardino 2008-4-11 14625 Merced About 8.5 mi. SSE of Merced; ~ 40 yds. SE of wire gate on south side of Sandy Mush Rd., 3.7 mi. W of Hwy. 99 53 Comment
  JEPS114463  Atriplex rosea Lowell Ahart, John Dittes 2008-8-21 15232 Merced 30 yards 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 53 Comment
  JEPS114537  Melilotus albus Lowell Ahart, John Dittes 2008-8-25 15239 Merced On the banks and bottom of Dutchman Slough, about 220 yards south of the wire gate on the outh side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced 53 Comment
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Oct 5 2019
  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
  JEPS114563  Hordeum depressum Lowell Ahart, John Dittes, Josephine Guardino 2008-4-11 14616 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
  JEPS114581  Psilocarphus brevissimus var. brevissimus Lowell Ahart, John Dittes, Josephine Guardino 2008-4-11 14605 Merced On the bottom of vernal pools, about 20 yards 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 53 Comment
  JEPS114595  Trifolium albopurpureum Lowell Ahart, John Dittes, Josephine Guardino 2008-4-12 14665 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
  JEPS114884  Juncus usitatus Lowell Ahart, John Dittes 2008-8-21 15251 Merced On the bottom 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
  SBBG128571  Datura wrightii L. Ahart, J. Dittes 2008-8-21 15246 Merced wire gate on S side of Sandy Mush Rd, 3.7 mi W of Hwy 99, ca. 8.5 mi SSE of Merced 53 Comment
  SBBG128905  Alopecurus saccatus L. Ahart, J. Dittes, J. Guardino 2008-4-11 14636 Merced bottom of a vernal pool, ca. 20 yards SE of the 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
  CHSC100462  Eryngium mathiasiae Lowell Ahart; John Dittes 2008-8-25 15306 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
  CHSC106184  Lepidium campestre Lowell Ahart; John Dittes 2010-8-31 17109 Modoc About 40 yards west of Elkins Lane, about 150 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. 1274 Comment
  CHSC106192  Gratiola ebracteata Lowell Ahart; John Dittes 2010-8-31 17128 Modoc Edge of a pond, about 400 yards west of Elkins Lane and 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
  CHSC106208  Tribulus terrestris Lowell Ahart; John Dittes 2010-8-31 17132 Modoc West side of Elkins Lane, about 10 yards south 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
  CHSC106212  Amaranthus powellii Lowell Ahart; John Dittes 2010-8-31 17107 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. 1267 Comment
  CHSC106327  Sisymbrium altissimum Lowell Ahart; John Dittes 2010-8-31 17130 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. 1267 Comment
  CHSC106336  Tribulus terrestris 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
  CHSC107339  Lamium amplexicaule Lowell Ahart; John Dittes 2011-6-21 17523 Modoc About 100 yards west of the fence, south edge of the meadow, Ash Creek State Wildlife Area, about 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
  CHSC107371  Acmispon denticulatus Lowell Ahart; John Dittes 2011-6-22 17545 Modoc On the west side of the road, about 30 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 Aden, 10 miles (air) east of Lookout, Big Valley. 1264 Comment
  CHSC107383  Plagiobothrys tenellus Lowell Ahart; John Dittes 2011-6-22 17553 Modoc About 50 yards east of the road, about 100 yards northeast 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
  CHSC108007  Ranunculus arvensis Lowell Ahart; John Dittes 2011-6-21 17512 Modoc About 130 yards west of the fence, south edge of the meadow, Ash Creek State Wildlife Area, about 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
  CHSC110897  Carex athrostachya Lowell Ahart; John Dittes 2012-7-11 18345 Modoc Along a ditch, along a poor mowed road, about 1/2 mile southeast of Piolt 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
  CHSC111414  Camissonia contorta Lowell Ahart; John Dittes 2012-7-12 18355 Modoc In the parking area on the east side of Elkins Lane, northeast of the homestead, about 300 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. 1295 Comment
  CHSC112775  Pilularia americana Lowell Ahart; John Dittes 2013-7-24 18924 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
  CHSC112815  Polygonum douglasii Lowell Ahart; John Dittes 2013-7-25 18964 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
  CHSC112823  Atriplex rosea Lowell Ahart; John Dittes 2013-7-25 18956 Modoc Along 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. 1267 Comment
  CHSC117041  Microseris nutans Lowell Ahart; John Dittes 2016-6-6 20958 Modoc About 100 yards east of the Parking Area, about one mile south of the intersection of County Road 87 and Access Road to Pilot Butte Parking Area, 3.8 miles (air) east of Lookout, 7.5 miles (air) west of Adin, Ash Creek State Wildlife Area. 1271 Comment
  CHSC117147  Chenopodium album Lowell Ahart; John Dittes 2016-7-14 21168 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 Cdounty Road 87, 1/73 miles (air) west of Adin, Big Valley. 1273 Comment
  CHSC117240  Deinandra lobbii Lowell Ahart; John Dittes 2016-7-16 21252 Modoc About 230 yards west of the Fishing Assess Sign, middle of a poor dirt road, low area east of the second gate, about 1/8 mile south of Ash Creek, Ash Creek State Wildlife Area,1 mile (air) south of County Road 87, 1.7 miles (air) west of Adin, Big Valley. 1276 Comment
  CHSC117264  Gratiola ebracteata Lowell Ahart; John Dittes 2016-7-14 21211 C Modoc 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
  CHSC117290  Lamium amplexicaule Lowell Ahart; John Dittes 2016-7-14 21174 Modoc 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
  CHSC117501  Acmispon denticulatus Lowell Ahart; John Dittes 2016-7-14 21170 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
  CHSC99116  Rorippa curvisiliqua var. orientalis Lowell Ahart; John Dittes 2008-6-21 15000 Modoc In the drying pond, north of the large culvert, east of the large levee, in Big Valley, about 2.8 miles (air) north of the Headquarters at Ash Creek State Wildlife Area, about 5.4 miles (air) northeast of Bieber. 1255 Comment
  CHSC99117  Downingia bacigalupii Lowell Ahart; John Dittes 2008-6-21 14985 Modoc Bottom of a large vernal pool, about 50 yards northwest of a large culvert, about 25 yards west of the large levee, in Big Valley, about 2.8 miles (air) north of the Headquarters at Ash Creek State Wildlife Area, about 5.4 miles (air) northeast of Bieber. 1255 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
  CHSC99514  Elymus trachycaulus subsp. subsecundus Lowell Ahart; John Dittes 2008-6-21 15014 Modoc On the south side of the dirt road, uplands, in Big Valley, about 3.8 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 6.5 miles (air) northeast of Bieber. 1264 Comment
  CHSC99521  Elymus lanceolatus subsp. lanceolatus Lowell Ahart; John Dittes 2008-6-21 15017 Modoc On the north side of the dirt road, uplands, in Big Valley, about 3.8 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 6.5 miles (air) northeast of Bieber. 1264 Comment
  CHSC99899  Solidago velutina subsp. californica Lowell Ahart; John Dittes 2008-8-26 15343 Modoc On the banks of Rose Creek, 250 feet southwest of the confluence of Rose Creek and Pit River, on the northwest side of unnamed road, 3,160 feet east of intersection with County Road 85a, 9.3 miles (air) north-northeast of Lookout. 1276 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
  HSC103930  Juniperus occidentalis var. occidentalis L. Ahart, John Dittes 2008-8-26 15358 Modoc About 9.3 mi. (air) NNE of Lookout; on the SE side of Rose Creek, 750 ft. SW of confluence of Rose Creek and Pit River, on the NW side of unnamed road, 2,660 ft. E of intersection with County Rd. 85A 1277 Comment
  JEPS114459  Cercocarpus betuloides var. macrourus Lowell Ahart, John Dittes 2008-8-26 15357 Modoc Southeast side of Rose Creek, 750 feet southwest of confluence of Rose Creek and Pit River, on the southeast side of unnamed road, 2660 feet east of intersection with County Road 85a, 0.3 miles (air) north-northeast of Lookout 1276 Comment
  JEPS114668  Chenopodium album Lowell Ahart, John Dittes 2008-8-25 15321 Modoc On the east 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
  JEPS114686  Veronica catenata Lowell Ahart, John Dittes 2008-6-21 14998 Modoc On wet soil, in the drying pond, north of the large culvert, east of the large levee, mountain meadow, in Big Valley, about 2.8 miles (air) north of the Headquarters at Ash Creek State Wildlife Area, about 5.4 miles (air) northeast of Bieber 1255 Comment
  JEPS114842  Elymus lanceolatus subsp. lanceolatus Lowell Ahart, John Dittes 2008-6-21 15017 Modoc On the north side of the dirt road, uplands, in Big Valley, about 3.8 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 6.5 miles (air) northeast of Bieber 1264 Comment
  JEPS117249  Atriplex patula var. obtusa Lowell Ahart, John Dittes 2010-8-31 17112 Modoc About 10 yards west of Elkins Lane, about 150 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 1274 Comment
  JEPS117299  Amaranthus californicus Lowell Ahart, John Dittes 2010-8-31 17106 Modoc About 10 yards west of Elkins Lane, about 150 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 1274 Comment
  JEPS117370  Iva axillaris Lowell Ahart, John Dittes 2010-8-30 17085 Modoc About 20 yards north of the 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
  JEPS118339  Deschampsia danthonioides Lowell Ahart, John Dittes 2011-6-22 17550 Modoc On the west 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
  JEPS119856  Carex athrostachya Lowell Ahart, John Dittes 2012-7-11 18345 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 Country Road 87, about 7.5 miles (air) west of Adin, about 10.2 miles (air) east of Lookout, Big Valley. Comment
  JEPS121221  Juncus bufonius var. bufonius Lowell Ahart, John Dittes 2013-7-24 18928 Modoc About 50 yards S of the levee road, N side of Ash Creek Floodplain, 0.54 air miles SE of Pilot Butte parking area, 1.1 air miles S of County Road 87, 6.8 air miles W of Adin, Big Valley. Comment
  JEPS121232  Alisma triviale Lowell Ahart, John Dittes 2013-7-24 18923 Modoc N side of Ash Creek Floodplain, 0.54 air miles SE of Pilot Butte parking area, 1.1 air miles S of County Road 87, 6.8 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
  JEPS123976  Elatine Lowell Ahart, John Dittes 2015-7-15 20351 Modoc Ash Creek State Wildlife Area, about 3.9 miles (air) west of Adin, about 7.7 miles (air) northeast of Bieber, Big Valley. Comment
  JEPS126540  Sisyrinchium bellum Lowell Ahart, John Dittes 2016-6-6 20965 Modoc About 100 yards east of the Parking Area, about one mile south of the intersection of County Road 87 and Access Road to Pilot Butte Parking Area, 3.8 miles (air) east Lookout, 7.5 miles (air) west of Adin, Ash Creek State Wildlife Area. 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
  RSA0039540  Artemisia ludoviciana subsp. ludoviciana Lowell A. Ahart, John Dittes 2008-8-25 15278 Modoc On the west bank of the Pit River, about 1/8 mile east of County Road 91, about 3.8 miles (air) north-northeast of Lookout. 1273 Comment
  RSA0045634  Ranunculus aquatilis var. diffusus Lowell Ahart, John Dittes 2008-6-21 14989 Modoc North of the large culvert, east of the large levee, in Big Valley, about 2.8 miles (air) north of the Headquarters at Ash Creek State Wildlife Area,, about 5.4 miles (air) northeast of Bieber. 1255 Comment
  RSA767676  Epilobium brachycarpum L. Ahart, John Dittes 2010-8-30 17067 Modoc North side of a small wash, about 10-15 yards west 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 air miles northeast of Bieber, Big Valley. 1268 Comment
  RSA767681  Navarretia intertexta L. Ahart, John Dittes 2010-8-30 17056 Modoc North side of a small wash, about 10-15 yards west 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 air miles northeast of Bieber, Big Valley. 1268 Comment
  SBBG128751  Juniperus occidentalis L. Ahart, J. Dittes 2008-8-26 15358 Modoc SE side of Rose Crk, 750 feet SW of confluence of Rose Crk and Pit River, on the NW side of unnamed rd, 2660 feet E of intersection with County Rd 85a, 9.3 mi (air) NNE of Lookout 1276 Comment
  CAS-BOT-BC66519  Thysanocarpus curvipes Lowell Ahart 1969-4-7 s.n. Napa Near Lake Berryessa. 243 Comment
  CDA34668  Polypogon interruptus L. Ahart 2009-10-12 16466 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 southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. Comment
  CHSC102275  Veronica catenata Lowell Ahart 2009-10-12 16452 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 Winters. 133 Comment
  CHSC102293  Eragrostis hypnoides Lowell Ahart 2009-10-12 16464 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 southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 437 Comment
  CHSC102518  Croton setiger Lowell Ahart 2009-10-12 16438 Napa Below the high water line on 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 miles (air) west of Winters. 133 Comment
  JEPS115746  Helianthus cusickii Lowell Ahart 2009-10-12 16424 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 southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winte 133 Comment
  RSA755363  Euthamia occidentalis L. Ahart 2009-10-12 16420 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
  RSA769214  Lepidium latifolium L. Ahart 2009-10-27 16482 Napa Below high water line of Lake Berryessa, about 150 yards southeast of Eticuera Creek, about 250 yards south of Eticuera Parking Area at the northeast end of the causeway, on the south side of Berryessa Knoxville Road., About 20 air miles northwest of Winters 130 Comment
  RSA769219  Dittrichia graveolens L. Ahart 2009-10-27 16503 Napa Intersection of Pope Canyon Road and Berryessa Knoxville Road, near Lake Berryessa, about 20 air miles west of Winters 152 Comment
  RSA769221  Polypogon interruptus L. Ahart 2009-10-12 16466 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
  CDA42320  Heterocodon rariflorum L. Ahart 2005-7-23 12195 Nevada Under the power lines, about 100 yards west of the paved road, southwest of Lake Spaulding, about 1/2 mile north of Highway 20. Comment
  CDA42763  Cryptogramma acrostichoides L. Ahart 2004-8-9 11340 Nevada Near cliffs, about 150 yards south of the mine waste mound, 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 Comment
  CHSC100355  Adenocaulon bicolor Lowell Ahart 2008-7-18 15130 Nevada Near a small stream, about 50 yards north of the water ditch, along the P. G. and E. water ditch at the 3 1/4 mile mark, about one mile wouthwest of Highway 20 (by ditch), about 1/2 mile south of Bear Valley. 1744 Comment
  CHSC107548  Rumex acetosella Lowell Ahart 2011-7-23 17597 Nevada In the small meadow where there are two grave memorials, about 40 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
  CHSC108299  Viola lobata subsp. lobata Lowell Ahart 2011-7-23 17617 Nevada Along the north 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
  CHSC108305  Veronica peregrina subsp. xalapensis Lowell Ahart 2011-7-23 17601 -A Nevada In the small meadow where there are two grave memorials, about 40 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
  CHSC110914  Lactuca serriola Lowell Ahart 2012-7-28 18388 -A Nevada On the west side of Pioneer Trail, about 30 yards east of the PG and E Pavilion and restrooms, on the east side of Bowman Lake Road, about 30 yards south of the Bear River, Bear Valley. 1433 Comment
  CHSC110920  Lepidium virginicum subsp. menziesii Lowell Ahart 2012-7-28 18402 Nevada On the Pioneer Trail, about 50 yards northeast of the PG and E Pavilion and restrooms, on the east side of Bowman Lake Road, on the east side of the bridge across the Bear River, Bear Valley. 1433 Comment
  CHSC110933  Pellaea bridgesii Lowell Ahart 2012-7-28 18380 Nevada Rocky area on the east side of the Pioneer Trail, about 80 yards southeast of the PG and E Pavilion and restrooms, on the east side of Bowman Lake Road, about 100 yards south of the Bear River, Bear Valley. 1433 Comment
  CHSC43437  Streptanthus tortuosus subsp. truei Lowell Ahart 1976-9-29 1213 Nevada South of the Foote Road, about 1 mile west of the Foote Crossing of the Middle Fork of the Yuba River, north of Columbia. 914 Comment
  CHSC45405  Ranunculus occidentalis var. occidentalis Lowell Ahart 1974-6-11 480 Nevada Along a small stream, about 3 miles south of Bowman Dam, on the east side of the road from Bowman Dam to Highway 20 at Bear Valley. 1524 Comment
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Jun 17 2008
  CHSC45832  Pinus jeffreyi Lowell Ahart 1973-10-29 285 Nevada West of Washington Road, about 2 miles north of Highway 20. 914 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
  CHSC75796  Acer glabrum var. torreyi Lowell Ahart; Vernon H. Oswald 1999-7-26 8096 Nevada Grouse Ridge Road (Road 14), about 4 1/2 miles east of Bowman Lake Road (Road 18), about 1 1/2 miles southwest of the Lookout on Grouse Ridge, about 5 miles (air) south of Bowman Lake. 2011 Comment
  CHSC78387  Circaea alpina subsp. pacifica Lowell Ahart 2000-7-28 8611 Nevada West of the 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
  CHSC78499  Spergularia rubra Lowell Ahart 2000-8-10 8626 Nevada Along Fall Creek, about 1/8 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
  CHSC78531  Galium trifidum var. pacificum Lowell Ahart 2000-8-10 8636 Nevada Gravel bars along Fall Creek, about 1/8 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
  CHSC78556  Deschampsia elongata Lowell Ahart 2000-8-10 8644 Nevada Gravel bars along 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
  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
  CHSC80934  Cryptantha affinis Lowell Ahart 2001-7-27 9046 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
  CHSC80939  Rorippa curvisiliqua var. orientalis Lowell Ahart 2001-7-27 9010 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
  CHSC80942  Sambucus racemosa var. microbotrys Lowell Ahart 2001-7-27 9004 Nevada On both sides of the dirt road, 300 yards west of the old sheep corral, north of Lake Van Norden, about 1 1/4 miles east of Soda Springs. 2063 Comment
  CHSC80952  Mentha canadensis Lowell Ahart 2001-7-27 9013 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
  CHSC81040  Allophyllum integrifolium Lowell Ahart 2001-8-14 9131 Nevada On the south side of Meadow Lake Road (Forest Road 18), south of and between the two sets of three large culverts where the road crosses Jackson Creek, at the east end of Bowman Lake and west of the major campgrounds and buildings. 1706 Comment
  CHSC82245  Myosotis discolor Lowell Ahart 2002-5-4 9593 Nevada South side of Perimeter Road, just east of Saddle Drive, about 1 mile east of the intersection of Perimeter Road and White Oak Drive, about 3 1/2 miles (air) east of Camp Far West Dam. 182 Comment
  CHSC82255  Erigeron philadelphicus Lowell Ahart 2002-5-5 9596 Nevada Meadow area on the south side of McCortney Road, west of the drainage, about 300 yards east of the intersection of McCortney Road and White Oak Drive, about 1/4 mile southwest of where McCortney Road crosses Rock Creek, about 2 3/4 miles (air) northeast of Camp Far West Dam. 112 Comment
  CHSC82276  Aphanes occidentalis Lowell Ahart 2002-5-5 9601 Nevada On the south side of McCortney Road, 20 yards south of the bridge across Rock Creek, about 3 miles (air) northeast of Camp Far West Dam. 106 Comment
  CHSC82277  Plagiobothrys glyptocarpus var. glyptocarpus Lowell Ahart 2002-5-5 9597 Nevada Meadow area on the south side of McCortney Road, west of the drainage, about 300 yards east of the intersection of McCortney Road and White Oak Drive, about 1/4 mile southwest of where McCortney Road crosses Rock Creek, about 2 3/4 miles (air) northeast of Camp Far West Dam. 112 Comment
  CHSC82281  Trifolium variegatum var. variegatum Lowell Ahart 2002-5-5 9595 Nevada Meadow area on the south side of McCortney Road, west of the drainage, about 300 yards east of the intersection of McCortney Road and White Oak Drive, about 1/4 mile southwest of where McCortney Road crosses Rock Creek, about 2 3/4 miles (air) northeast of Camp Far West Dam. 112 Comment
  CHSC84367  Astragalus whitneyi var. whitneyi Lowell Ahart 2003-9-2 10548 Nevada Ridge, north of the trails to the east and south, on the east side 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. 2259 Comment
  CHSC87385  Scribneria bolanderi Lowell Ahart 2004-5-3 10884 Nevada Serpentine ridge, 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
  CHSC88433  Elymus glaucus subsp. glaucus Lowell Ahart 2004-8-17 11378 Nevada Near the east margin of a small snow lake, on the north side of Jackson Creek, about 300 yards east of Jackson Lake, at the north base of English Mountain. 2058 Comment
  CHSC89427  Pseudognaphalium thermale Lowell Ahart 2004-9-29 11409 Nevada Along Forest Road 41, about 1 northwest of Weaver Lake, about 2 miles (air) northwest of Bowman Lake, about 4 miles (air) northeast of Graniteville. 1882 Comment
  CHSC89458  Orobanche pinorum Lowell Ahart 2004-9-29 11411 Nevada Along the trail below the basalt cliffs to Weaver Falls, north of Weaver Lake, about 1/8 mile east of Forest Road 41, about 1 1/4 mile (air) northwest of Bowman Lake, about 5 miles (air) northeast of Graniteville. 1905 Comment
  CHSC91993  Cornus sericea subsp. sericea Lowell Ahart 2005-7-23 12201 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
  CHSC92004  Chimaphila menziesii Lowell Ahart 2005-7-31 12217 Nevada Between the curve and below the bridge on old Highway 80, east of Donner Pass and Donner Summit. 2062 Comment
  CHSC92009  Sidalcea glaucescens Lowell Ahart 2005-7-31 12221 Nevada Along the west side of a small wash, between the curve and below the bridge on old Highway 80, east of Donner Pass and Donner Summit. 2062 Comment
  CHSC92050  Juncus balticus Lowell Ahart 2005-7-31 12240 Nevada In a small meadow and in a small wash, between the curve and below the bridge on old Highway 80, east of Donner Pass and Donner Summit. 2062 Comment
  CHSC92111  Juncus chlorocephalus Lowell Ahart 2005-7-31 12244 Nevada On damp granite soil, in a small meadow and in a small wash, between the curve and below the bridge on old Highway 80, east of Donner Pass and Donner Summit. 2062 Comment
  CHSC92161  Carex fracta Lowell Ahart 2005-7-23 12160 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
  HSC97037  Viola cuneata L. Ahart 2004-5-3 10862 Nevada W side of Washington Rd., about 1 1/4 mi. N of the intersection of Hwy. 20 and Washington Rd., about 4 1/4 mi. S of Washington 1241 Comment
  JEPS102359  Solanum triflorum Lowell Ahart 2001-8-14 9152 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
  JEPS102395  Agoseris monticola Lowell Ahart 2001-7-21 8955 Nevada On the edge of a large meadow, on the south side of the dirt road, east of the old sheep corral, NE of Lake Van Norden, about 1 1/2 miles east of Soda Springs. 2063 Comment
  JEPS102446  Anthoxanthum odoratum Lowell Ahart 2001-8-14 9128 Nevada Small mountain meadow, east of the dirt road that goes to Sawmill Lake, south of Prairie Creek, about 1/4 mile south of campgrounds and buildings at the east end of Bowman Lake. 1737 Comment
  JEPS102685  Carex lenticularis var. impressa Lowell Ahart 2001-8-8 9063 Nevada On the south bank of Catfish Lake, about 3 miles (air) south of the spillway of Jackson Meadow Reservoir. 1889 Comment
  JEPS102691  Juncus bufonius var. bufonius Lowell Ahart 2001-7-27 9030 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
  JEPS103279  Navarretia intertexta subsp. intertexta Lowell Ahart 2002-6-3 9685 Nevada Along a drainage, in a ''meadow like'' area, about 140 yards west of where a few people park along Long Ravine Road, about one mile SE of the intersection of Long Ravine Road and Camp Far West Road, NE of Camp Far West Reservoir. 135 Comment
  JEPS103287  Plagiobothrys glyptocarpus var. glyptocarpus Lowell Ahart 2002-5-4 9585 Nevada East of the private driveway, south side of Perimeter Road, 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) SE of Rock Mountain. 243 Comment
  JEPS105910  Melilotus officinalis Lowell Ahart 2004-7-17 11258 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
  JEPS105924  Prunus emarginata Lowell Ahart 2004-7-17 11260 Nevada Near small stream, upper reaches of Steephollow Creek, ca. 200 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
  JEPS106353  Elymus glaucus subsp. glaucus Lowell Ahart 2004-8-17 11378 Nevada Near the east margin of a small snow lake, on the north side of Jackson Creek, about 300 yards east of Jackson Lake, at the north base of English Mountain 2058 Comment
  JEPS107500  Dichanthelium acuminatum subsp. fasciculatum Lowell Ahart 2005-7-23 12172 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
  JEPS107543  Microseris nutans Lowell Ahart 2005-7-23 12176 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
  JEPS107565  Cryptantha affinis Lowell Ahart 2005-7-31 12212 Nevada Between the curve and below the bridge on old Highway 80, east of Donner Pass and Donner Summit 2062 Comment
  JEPS107856  Juncus hemiendytus var. hemiendytus Lowell Ahart 2005-7-31 12242 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
  JEPS114504  Agastache urticifolia Lowell Ahart 2008-7-18 15129 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
  JEPS114779  Achnatherum occidentale subsp. occidentale Lowell Ahart 2008-7-18 15116 Nevada Along the PG&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
  JEPS118357  Rumex acetosella Lowell Ahart 2011-7-23 17597 Nevada In the small meadow where there are two grave memorials, about 40 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
  JEPS119829  Plantago major Lowell Ahart 2012-7-28 18412 Nevada On the west side of Pioneer Trail, about 40 yards east of the P. G. & E Pavilion and restrooms, on the east side of Bowman Lake Road, about 20 yards south of the Bear River, Bear Valley. Comment
  JEPS120136  Luzula comosa var. comosa Lowell Ahart 2012-7-28 18399 Nevada On the west side of Pioneer Trail, about 150 yards east of the P. G. & E Pavilion and restrooms, on the east side of Bowman Lake Road, about 20 yards south of the Bear River, Bear Valley. Comment
  JEPS128590  Lonicera involucrata var. involucrata Lowell Ahart, John Dittes 2017-7-20 21638 Nevada South of Prosser Creek, south side of Carpenter Valley, about 200 yards north of the poor dirt road, about 4 miles (air) west x southwest of Hobart Mills, about 5.2 miles (air) northwest of Truckee, southeast corner of Carpenter Valley. Comment
  JEPS128608  Calamagrostis canadensis var. canadensis Lowell Ahart, John Dittes 2017-7-20 21631 Nevada At the base of the south bank of Prosser Creek, south side of Carpenter Valley, about 200 yards north of the poor dirt road, about 4 miles (air) west x southwest of Hobart Mills, about 5.2 miles (air) northwest of Truckee, southeast corner of Carpenter Valley. Comment
  JEPS128612  Castilleja pilosa Lowell Ahart, John Dittes 2017-7-20 21650 Nevada On the north side of Prosser Creek, about 4 miles (air) west of Hobart Mills, about 5.2 miles (air) northwest of Truckee, basin of Prosser Creek, Carpenter Valley. Comment
  JEPS128649  Barbarea orthoceras Lowell Ahart, John Dittes 2017-7-19 21617 Nevada Northwest part 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
  JEPS128699  Poa cusickii subsp. epilis Lowell Ahart, John Dittes 2017-7-18 21543 Nevada 1014 feet southeast of intersection of Boca Road and Prosser Dam Road, meadow north of Prosser Creek Reservoir Dam, about 4.6 miles (air) northwest of Truckee. Comment
  JEPS128748  Hosackia crassifolia var. crassifolia Lowell Ahart, John Dittes, Josephine Guardino 2017-6-27 21444 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
  JEPS128754  Microseris nutans Lowell Ahart, John Dittes, Josephine Guardino 2017-6-27 21469 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
  JEPS95138  Cordylanthus pilosus subsp. trifidus Lowell Ahart 1997-8-13 7847 Nevada ca. 1.5 mi. w. Penn Valley (along sides of Penn Valley Rd., just e. of intersection of Indian Springs Rd. & Penn Valley Rd., just s. of Hwy. 20) 426 Comment
  JEPS95889  Valeriana californica Lowell Ahart 1999-7-26 8119 Nevada near the edge of Grouse Ridge Road (Road 14) and about 1/2 mile southwest of the Lookout; about 5 1/2 miles northeast of Bowman Lake Road (Road 18); about 4 1/2 miles (air) south of Bowman Lake 2133 Comment
  JEPS95896  Polygonum davisiae Lowell Ahart 1999-7-26 8105 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
  JEPS98359  Pseudostellaria sierrae Lowell Ahart 2000-8-10 8650 Nevada ca 5 air/8 rd mi S of Hwy 20 and Bear Valley (near dry flat S of cement dam on Fall Creek, ca. 1/4 mi E of Forest Hwy 18 (Bowman Lake Road) crossing of Fall Crk.) 1706 Comment
  RSA0035402  Madia gracilis Lowell Ahart 2008-7-18 15109 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
  RSA700790  Cryptogramma acrostichoides L. Ahart 2004-8-9 11340 Nevada About 150 yards south of the mine waste mound, 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 miles east of the east end of Bowman Lake. 2125 Comment
  RSA701080  Carex laeviculmis L. Ahart 2004-8-9 11372 Nevada On the southeast shore of Catfish Lake, about 50 yards west of Meadow Lake Road, about 1/2 mile (air) northeast of Jackson Lake. 1985 Comment
  RSA701235  Potentilla flabellifolia L. Ahart 2004-8-9 11363 Nevada north of the mine waste mound, south of a small dry meadow, southwest of a large snow lake, on the very upper reaches of Jackson Creek, on the northeast side of English Mountain. about 0.75 mi (air) south of Catfish Lake., About 2.75 mi. east of the east end of Bowman Lake. 2291 Comment
  RSA702635  Isoetes bolanderi L. Ahart 2004-8-17 11389 Nevada West edge of a small drying snow lake, snow lake outlet flows east into Secret Lake, 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 (air) east of the east end of Bowman Lake. 2264 Comment
  RSA703218  Adiantum aleuticum L. Ahart 2004-9-29 11410 Nevada Below basalt cliffs to Weaver Falls, near Weaver Falls, north of Weaver Lake, about 1/8 mile east of Forest Road 41, about 1 1/4 miles (air) northwest of Bowman Lake, about 5 miles (air) northeast of Granitville. 1906 Comment
  RSA716172  Apocynum androsaemifolium L. Ahart 2005-7-31 12202 Nevada Between the curve and below the bridge on old Highway 80, east of Donner Pass and Donner Summit. 2063 Comment
  RSA716328  Deschampsia cespitosa subsp. cespitosa L. Ahart 2005-7-23 12169 Nevada About 100 yards west of the paved road, southwest of Lake Spaulding, about 1/2 mile north of Highway 20. 1573 Comment
  RSA795343  Brodiaea elegans subsp. elegans Lowell Ahart 2011-7-23 17607 Nevada Rocky area west of the small meadow where there are two grave memorials, about 100 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
  CDA40741  Lepechinia calycina L. Ahart 2002-5-28 9672 Nevada East side of Patterson Valley Road, about 25 yards north of the intersection of Patterson Valley Road and McCourtney Road, about one mile east of the intersection of Indian Springs Road and McCourtney Road, about 6 miles southwest of Grass Valley. Comment
  SEINET13709305  Eleocharis macrostachya Lowell William Ahart, Lowell William Ahart 2001-1 9028 Nevada Strand of Prosser Creek Reservoir, S of Commemorative Emigrant Trail, about 1/4 Mi E of Hwy 89, about 4 Mi. N of Truckee (T18N, R16E, sec 26, NE 1/4) 5730 Ft 1747 Comment
  CAS-BOT-BC8778  Delphinium gracilentum f. versicolor Lowell Ahart 1962-7-14 s.n. Placer French Meadows 1676 Comment
  CHSC10719  Plantago major Lowell Ahart 1969-7-30 Placer Near Ahart Camp, French Meadows. 1524 Comment
  CHSC11093  Pedicularis racemosa Lowell Ahart 1968-8-11 Placer French meadows. 1524 Comment
  CHSC81742  Juniperus occidentalis var. occidentalis Lowell Ahart 2001-10-10 9335 Placer West of Soda Springs Road, about one mile south of Ice Lakes, about 3 miles south of Soda Springs and Highway 80. 2011 Comment
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Jan 4 2007
  CHSC82578  Acmispon americanus var. americanus Lowell Ahart 2002-7-22 9918 Placer 50 yards northeast of the small natural lake, on the east side of the paved road to Lake Valley Reservoir, about 1/4 mile east of Yuba Gap and Highway 80. 1780 Comment
  CHSC96466  Trifolium dubium Lowell Ahart; Brian Williams 2007-4-13 13667 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
  CHSC96501  Juncus capitatus Lowell Ahart; Brian Williams 2007-4-13 13658 Placer On damp granite soil, on the sides of small vernal pools, 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
  CHSC97766  Rorippa curvisiliqua var. orientalis Lowell Ahart 2007-11-13 14595 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 miles (air) northeast of Sheridan. 73 Comment
  JEPS102602  Lotus nevadensis var. nevadensis Lowell Ahart 2001-10-10 9345 Placer French Meadows Reservoir, near the boat or trail access area on the NW side of the reservoir, about 1 mile SW of the bridge across the Middle Fork of the American River, about 2 miles SW of Ahart Camp, about 22 miles (air) NE of Forest Hill. 1594 Comment
  JEPS103489  Agrostis idahoensis Lowell Ahart 2002-7-22 9906 Placer Along a drainage, ca 40 yards NW 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. 1774 Comment
  JEPS103514  Juncus occidentalis Lowell Ahart 2002-7-22 9911 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
  CAS-BOT-BC139250  Agrostis idahoensis Lowell Ahart 1977-7-9 1522 Plumas 10 miles northeast of La Porte. About 0.5 mile below the Bunker Hill Mine. 1800 Comment
  CAS-BOT-BC14723  Boechera repanda Lowell Ahart 1986-7-1 5328 Plumas South of the logging road 0.1 mile S of the West Branch of Hopkins Creek, about 0.75 mile NE of the Bunker Hill Mine. 1828 Comment
  CAS-BOT-BC260857  Phleum pratense Lowell Ahart 1977-8-8 1525 Plumas 4 mi. west of Pilot Pk. 1800 Comment
  CAS-BOT-BC282092  Melica fugax Lowell Ahart 1986-7-8 5347 Plumas About 1 mile NW of Pilot Peak, ca 14 miles NE of La Porte 1981 Comment
  CAS-BOT-BC282094  Melica fugax Lowell Ahart 1979-7-18 s.n. Plumas Ca 1 mile W of Pilot Peak, along and above the road. Area about 1/8 mile S of Onion Valley 1800 Comment
  CAS-BOT-BC286448  Cirsium scariosum Lowell Ahart 1983-8-17 4324 Plumas Near Onion Valley, near the Quincy-La Porte Road, west of Pilot Pk., north-east of La Porte 2000 Comment
  CAS-BOT-BC295790  Erigeron petrophilus var. sierrensis Lowell Ahart 1981-7-21 2945 Plumas Above the head of Dixon Creek, 1/8 mi. below the Buzzards Roost Ridge, ca. 1.5 mi. N of Pilot Peak 1800 Comment
  CAS-BOT-BC82654  Arnica latifolia Lowell Ahart 1980-7-27 2489 Plumas About 5 miles east of Bucks Lake 1500 Comment
  CDA24792  Descurainia incisa subsp. incisa L. Ahart, J. Dittes, J Guardino, Robert A. Schlising 2004-7-3 11164 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. Comment
  CDA32015  Cryptantha torreyana L. Ahart, J. Dittes, J. Guardino 2009-7-29 16223 Plumas Below the high water line of Lake Almanor, 1,849 feet northwest of Lake Almanor Dam. Comment
  CDA39568  Salix lucida subsp. lasiandra L. Ahart, John Dittes, Josephine Guardino, Robert Schlising 2004-7-3 11173 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. Comment
  CDA42933  Juncus dudleyi L. Ahart 2012-7-1 18256 Plumas On the west edge of Caribou Road, about 20 yards south of the stream, about 4 miles (air) northeast of Belden Comment
  CDA5105  Lythrum portula L. Ahart 2006-10-8 13416 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. Comment
  CHSC100028  Juncus effusus subsp. pacificus Lowell Ahart 2008-8-13 15159 Plumas West edge 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
  CHSC100039  Melica subulata Lowell Ahart 2008-7-16 15071 Plumas East of a small meadow (swamp) about 100 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 Porte. 1597 Comment
  CHSC100057  Juncus covillei Lowell Ahart 2008-8-13 15157 Plumas West edge 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
  CHSC100312  Carex infirminervia Lowell Ahart 2008-7-16 15082 Plumas Forest floor, in a small seep, east of a small meadow (swamp), about 100 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 Porte. 1597 Comment
  CHSC100349  Carex bolanderi Lowell Ahart 2008-8-14 15205 Plumas Wet meadow area with a small stream, just northwest of the culvert, on the northwest side 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 Reservoir. 1600 Comment
  CHSC100438  Cardamine breweri var. breweri Lowell Ahart 2008-9-10 15362 Plumas On the bottom 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
  CHSC100456  Madia glomerata Lowell Ahart 2008-9-10 15382 Plumas On the sides of Onion Valley Creek, in the northeast part 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
  CHSC101779  Lupinus argenteus var. heteranthus Lowell Ahart; John Dittes, Josephine Guardino 2009-6-14 15872 Plumas East of Forest Road 27N01Y, about 1.3 miles (air) west of Lake Almanor Dam. 1462 Comment
  CHSC101787  Cryptantha affinis Lowell Ahart; John Dittes, Josephine Guardino 2009-6-14 15858 Plumas Northwest of cut bank of Forest Road 27N01Y, about 1.3 miles (air) west of Lake Almanor Dam. 1462 Comment
  CHSC101842  Bromus tectorum Lowell Ahart; John Dittes, Josephine Guardino 2009-6-14 15866 Plumas About 1/3 miles (air) west of Lake Almanor Dam, near cut bank of Forest Road 27N01Y, along the north road edge. 1462 Comment
  CHSC101938  Ribes nevadense Lowell Ahart; John Dittes 2009-7-15 16103 Plumas On dry rocky soil, east of the power line, on the south side of Forest Service Road 26N22, about 2.3 miles (air) southeast of Butt Valley Reservoir Dam. 1517 Comment
  CHSC101956  Juncus laccatus Lowell Ahart; John Dittes 2009-7-28 16201 Plumas On damp bare soil, center of a logging road, near seeps, slope northwest of mine, west (above) Forest Service Road 27N28Y, 2.9 miles (air) northwest of Butt Valley Reservoir Dam. 1581 Comment
  CHSC102042  Quercus vacciniifolia Lowell Ahart; John Dittes, Josephine Guardino 2009-7-29 16217 Plumas On dry rocky soil, south of a drainage from a snow lake, about 100 yards north of the 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
  CHSC102084  Epilobium glaberrimum subsp. glaberrimum Lowell Ahart; John Dittes 2009-7-13 16048 Plumas On damp to wet soil, seep, on the north side of Forest Service Road 27N28, 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
  CHSC102107  Ageratina occidentalis Lowell Ahart; John Dittes, Josephine Guardino 2009-7-29 16215 Plumas On dry rocky soil, 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 miles (air) northeast of Rush Creek Hill, 2.6 miles (air) east-southeast of Caribou Powerhouse. 1677 Comment
  CHSC102113  Eleocharis acicularis var. acicularis Lowell Ahart; John Dittes, Josephine Guardino 2009-7-29 16228 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
  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
  CHSC102134  Madia elegans Lowell Ahart; John Dittes, Josephine Guardino 2009-7-29 16226 Plumas On dry bare soil, below the high water line of Lake Almanor, 1,849 feet northwest of Lake Almanor Dam. 1591 Comment
  CHSC102146  Potentilla norvegica Lowell Ahart; John Dittes, Josephine Guardino 2009-7-29 16234 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
  CHSC102386  Poteridium annuum Lowell Ahart; John Dittes, Josephine Guardino 2009-7-22 16126 Plumas On the west side of Forest Service Road 27N92K, 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
  CHSC102706  Arnica nevadensis Lowell Ahart; John Dittes, Josephine Guardino 2009-7-22 16161 Plumas On the west side of Forest Service Road 27N92K, 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
  CHSC102747  Arceuthobium americanum Lowell Ahart; John Dittes, Josephine Guardino 2009-7-22 16147 Plumas On the west side of Forest Service Road 27N92K, east side of Long Valley, about 3.5 miles (air) west-southwest of Greenville, about 5.2 miles (air) southeast of Lake Alamanor Dam. 1606 Comment
  CHSC102974  Solidago velutina subsp. californica Lowell Ahart; John Dittes 2009-9-7 16398 Plumas On the north side of the road (levee) about 80 yards north of Lake Almanor Dam. 1591 Comment
  CHSC103120  Carex fracta Lowell Ahart; John Dittes, Josephine Guardino 2009-7-21 16106 Plumas About 20 yards east 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
  CHSC103151  Gayophytum diffusum subsp. parviflorum Lowell Ahart; John Dittes 2009-9-7 16386 Plumas Below the high water line of Lake Almanor, about 2000 feet northwest of Lake Almanor Dam. 1591 Comment
  CHSC10764  Clarkia mildrediae subsp. lutescens Lowell Ahart 1968-6-29 Plumas Six miles S.E. of La Porte. 762 Comment
  CHSC108096  Cuscuta subinclusa Lowell Ahart 2011-9-17 17677 Plumas Stems parasitizing Arctostaphylos patula, on the west side of Lumpkin Ridge Road, about 2 miles (air) west of Little Grass Valley Reservoir Dam. 1687 Comment
  CHSC110385  Carex nervina Lowell Ahart 2012-9-5 18436 Plumas Meadow at the end of a small stream that flowes into the South Fork of the Feather River, about 350 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 LaPorte. 1889 Comment
  CHSC113586  Lythrum portula Lowell Ahart 2014-8-24 19739 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
  CHSC113604  Dysphania pumilio Lowell Ahart 2014-9-9 19840 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
  CHSC113637  Cornus sericea subsp. sericea Lowell Ahart 2014-8-31 19817 Plumas South of an unnamed drainage, on the west side of Black Rock Creek, about 200 yards southwest of the foot bridge across Black Rock Creek, about 200 yards southwest of the Black Rock, west side of Little Grass Valley Reservoir, about 4 1/2 miles (air) northwest of La Porte. 1536 Comment
  CHSC113977  Cheilanthes gracillima Lowell Ahart 2014-11-16 19906 Plumas About 100 yards west of Little Grass Valley Reservoir, about 60 yards south of the small stream, about 250 yards southwest of the Black Rock, about 4-1/2 miles (air) northwest of La Porte. 1584 Comment
  CHSC115212  Epilobium densiflorum Lowell Ahart 2015-6-7 20221 Plumas 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 mile (air) west of La Porte. 1411 Comment
  CHSC115791  Parnassia palustris Lowell Ahart; John Deurloo 2015-8-25 20524 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
  CHSC117484  Boechera pinetorum Lowell Ahart 2016-6-29 21071 Plumas Top and southwest part of Table Mountain, about 2 miles (air) northwest of Tamarack Flat, about 4 miles (air) northwest of Little Grass Valley Reservoir Dam. 1857 Comment
  CHSC23376  Juncus hemiendytus var. hemiendytus Lowell Ahart 1975-7-16 891 Plumas Section 13, eight miles north of La Porte. Found in a meadow, two miles north-east of Little Grass Valley Res. 1828 Comment
  CHSC32045  Pellaea brachyptera L. Ahart 1975-8-29 968 Plumas On ridge between Oxford and Coquette Creeks, ca. 10 mi s of Bucks Lake. 1828 Comment
  CHSC34310  Cyperus squarrosus L. Ahart 1981-9-6 3085 Plumas 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
  CHSC36508  Dysphania botrys L. Ahart 1981-9-6 3075 Plumas 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 Mill. 1200 Comment
  CHSC37193  Pedicularis attollens L. Ahart 1982-7-30 3738 Plumas Along edges of stream in a small meadow near rd, ca. 2 mi n of hardquartz Mine, ca. 5 mi s of Bucks lake. 1700 Comment
  CHSC39371  Delphinium nuttallianum L. Ahart; P. Ahart 1983-8-17 4316 Plumas Near Onion Valley, west of Pilot Peak, near the Quincy-La Porte Rd, northeast of La Porte. 2000 Comment
  CHSC40654  Limosella acaulis Lowell Ahart 1985-9-26 5172 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
  CHSC40659  Eleocharis bella Lowell Ahart 1985-9-26 5186 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
  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
  CHSC43341  Lonicera involucrata var. involucrata Lowell Ahart 1975-7-2 836 Plumas Along Lost Creek, about 6 miles north of the Sly Creek Dam. 914 Comment
  CHSC43436  Streptanthus tortuosus Lowell Ahart 1970-7-1 59 Plumas Along the edge of Lumpkin Ridge Road, about 10 miles west of La Porte. 1371 Comment
  CHSC43485  Erythranthe primuloides Lowell Ahart 1974-8-7 598 Plumas In a small mountain meadow, east of the dirt road, near Ohio Ravine, about 1 1/2 miles north-east of the Headquartz Mine, about 2 1/4 miles south of Grizzly Mountain. 1524 Comment
  CHSC44577  Melica fugax Lowell Ahart 1977-6-20 1435 Plumas Near the South Fork of the Feather River, about 1/2 mile north-east of the Feather Fork Mine, about 6 miles north of La Porte. 1706 Comment
  CHSC44581  Muhlenbergia filiformis Lowell Ahart 1975-9-13 985 Plumas Along Bunker Hill Creek, about 1/2 mile north of the Bunker Hill Mine, about 10 miles north-east of La Porte. 1828 Comment
  CHSC44880  Madia glomerata Lowell Ahart 1977-8-8 1541 Plumas Along the edges of the dirt road to Bird Creek, about 4 air miles west of Pilot Peak, about 15 miles north of La Porte. 1645 Comment
  CHSC45005  Helenium bigelovii Lowell Ahart 1979-8-16 2014 Plumas In a bog, about 100 yards east of Ohio Ravine, east of the dirt road, about 2 1/4 air miles south of Grizzly Mountain. 1767 Comment
  CHSC45854  Eriogonum vimineum Lowell Ahart 1981-7-18 2935 Plumas Growing on a steep gravelly roadcut, on the north side of Caribou Road, about 2 miles north of Belden. 1097 Comment
  CHSC45938  Phacelia racemosa Lowell Ahart 1981-7-21 2984 Plumas By a large pile of crushed lava rock, on the south side of Cleghorn Bar Road, about 2 miles west of the Quincy Lap Porte Road, about 2 1/2 miles west of Pilot Peak. 1737 Comment
  CHSC45983  Micranthes odontoloma Lowell Ahart 1976-7-7 1167 Plumas By a small stream, when at the bridge across Cold Water Creek go about 100 yards south and here is the small stream along the road, about 4 miles south of Grizzly Mountain. 1524 Comment
  CHSC46487  Cuscuta californica Lowell Ahart 1981-7-21 2971 Plumas Along Cleghorn Bar Road, about 1-1/2 miles west of La Porte Quincy Road, about 2 miles north-west of Pilot Peak. 1767 Comment
  CHSC46531  Sisyrinchium elmeri Lowell Ahart 1975-8-29 962 Plumas Near the edge of the dirt road, near Ohio Ravine, about 1 mile north-east of theHardquatz Mine, about 10 miles south of Bucks Lake. Comment
  CHSC46653  Delphinium nuttallianum Lowell Ahart 1989-7-2 6357 Plumas North of where the dirt road forks, the south fork leads to the Lookout on Pilot Peak, about 1/4 mile north of Pilot Peak, about 10 miles north-east of La Porte. 2103 Comment
  CHSC47417  Lithocarpus densiflorus var. echinoides Lowell Ahart 1976-7-16 1177 Plumas About 5 miles north-west of Little Grass Valley Reservoir. 1828 Comment
  CHSC63114  Crepis pleurocarpa Lowell Ahart 1994-6-29 7411 Plumas North of a poor logging road, about 1/2 mile south of Bucks Lake. 1828 Comment
  CHSC63119  Cryptantha simulans Lowell Ahart 1994-7-7 7460 Plumas Plumas/Sierra Counties. On the north side of the Pacific Crest Trail, on Bunker Hill Ridge, about 3/4 mile (air) south of Pilot Peak. 2011 Comment
  CHSC63121  Turritis glabra Lowell Ahart 1994-6-17 7357 Plumas Near the edges of a meadow, on the east side of Sly Creek, about 1 mile north of Schwartz Meadow, about 1 mile est of Sly Creek Reservoir. 1097 Comment
  CHSC63164  Geum macrophyllum Lowell Ahart 1994-6-17 7352 Plumas On the edge of a meadow, on the east side of Sly Creek, about 1 mile north of Schwartz Meadow, about 1 mile east of Sly Creek Reservoir. 1097 Comment
  CHSC63183  Viola lobata subsp. lobata Lowell Ahart 1994-6-29 7412 Plumas West of a poor logging road. About 1/2 mile south of Bucks Lake. 1828 Comment
  CHSC63203  Piperia unalascensis Lowell Ahart 1994-6-29 7403 Plumas About 1/2 mile south of Bucks Lake. 1828 Comment
  CHSC63218  Stellaria crispa Lowell Ahart 1994-7-28 7545 Plumas On the east sides of a small stream, north-east of Frenchman Hill, south-west of Bucks Lake. 1706 Comment
  CHSC63301  Triteleia ixioides subsp. anilina Lowell Ahart 1994-6-15 7328 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
  CHSC65376  Nothocalais alpestris Lowell Ahart 1995-9-13 7633 Plumas On the north-east side of Onion Valley, east of Quincy La Porte Road, about 1 mile north-west of Pilot Peak. 1828 Comment
  CHSC65392  Hordeum brachyantherum subsp. brachyantherum Lowell Ahart 1995-9-13 7622 Plumas On the north side of Onion Valley, east of Quincy La Porte Road, about 1 mile north-west of Pilot Peak. 1828 Comment
  CHSC69512  Hirschfeldia incana Lowell Ahart 1997-9-11 7904 Plumas On the east edge of Caribou Road, on the west side of the North Fork of the Feather River, about 1/2 mile south of Mosquito Creek, about 4 1/2 miles (air) northeast of Belden. 792 Comment
  CHSC69526  Echinochloa colona Lowell Ahart 1997-9-11 7898 Plumas On the west edge of Caribou Road, on the west side of the North Fork of the Feather River, about 1/8 mile south of Mosquito Creek, about 5 miles (air) northeast of Belden. 792 Comment
  CHSC69527  Polypogon monspeliensis Lowell Ahart 1997-9-11 7902 Plumas On the west edge of Caribou Road, on the west side of the North Fork of the Feather River, about 1/8 mile south of Mosquito Creek, about 5 miles (air) northeast of Belden. 792 Comment
  CHSC80826  Sagina saginoides Lowell Ahart 2001-7-19 8941 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 of Pilot Peak. 1828 Comment
  CHSC80827  Stellaria crispa Lowell Ahart 2001-7-19 8942 Plumas On the banks 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
  CHSC80858  Eriogonum nudum var. deductum Lowell Ahart; Vernon H. Oswald 2001-7-11 8893 Plumas Along the northeast trail from the dirt road to Homer Lake, about 5 1/2 miles (air) north of Greenville, about 5 1/2 miles (air) east of Lake Almanor. 2042 Comment
  CHSC80880  Carex jonesii Lowell Ahart 2001-7-23 9000 Plumas Meadow, on the south side of a poor logging road, start of a small branch of Butt Creek, about 2 1/2 miles (air) north of Humboldt Summit. 1828 Comment
  CHSC80903  Bromus orcuttianus Lowell Ahart; Vernon H. Oswald 2001-7-23 8998 Plumas Along the edge of the dirt road, near sign of stagecoach robbery, about 1/2 mile north of Humboldt Summit. 1828 Comment
  CHSC81161  Penstemon rydbergii var. oreocharis Lowell Ahart 2001-8-29 9235 Plumas On the west side of Little Last Chance Creek, on the strand of Frenchman Lake. 1700 Comment
  CHSC81190  Muhlenbergia richardsonis Lowell Ahart 2001-8-29 9244 Plumas On the west side of Little Last Chance Creek, on the strand of Frenchman Lake. 1700 Comment
  CHSC81388  Gayophytum diffusum subsp. parviflorum Lowell Ahart 2001-9-18 9293 Plumas Near Cow Creek, on the strand of Lake Davis. 1761 Comment
  CHSC81623  Epilobium ciliatum subsp. ciliatum Lowell Ahart 2001-10-8 9310 Plumas On the sides of Boulder Creek, below the high water line of Antelope Lake, about 24 mies (air) northeast of Quincy. 1522 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
  CHSC81752  Euthamia occidentalis Lowell Ahart 2001-10-16 9368 Plumas On the south side of a small stream, and on the northwest side of Round Valley Reservoir, about 2 1/2 miles southwest of Greenville. 1365 Comment
  CHSC82464  Calystegia malacophylla subsp. malacophylla Lowell Ahart 2002-6-26 9767 Plumas On the east side of the poor road, about 1 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. 1760 Comment
  CHSC82502  Boechera rectissima Lowell Ahart 2002-6-26 9774 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
  CHSC82543  Asclepias cordifolia Lowell Ahart 2002-7-18 9872 Plumas Meadow, about 100 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 1/4 mile (air) northwest of Little Grass Valley Reservoir dam, about 4 1/4 miles (air) northwest of La Porte. 1709 Comment
  CHSC84178  Trifolium cyathiferum Lowell Ahart 2003-7-18 10430 Plumas 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
  CHSC84366  Trifolium variegatum var. variegatum Lowell Ahart 2003-9-7 10554 Plumas Seep and spring on the north side of the road, on Hartman Bar Ridge, about 1 mile (air) southwest of Franklin Hill, about 3 1/2 miles (air) northwest of Tamarack Flat, about 6 miles (air) northwest of Little Grass Valley Reservoir Dam. 1524 Comment
  CHSC84416  Blepharipappus scaber Lowell Ahart; John Dittes 2003-8-8 10484 Plumas On an old abandoned road, on the east side of Beckwourth Calpine Road, about 3 miles south of Beckwourth, Sierra Valley. 1482 Comment
  CHSC87612  Ribes roezlii var. roezlii Lowell Ahart; John Dittes, Josephine Guardino 2004-5-16 10915 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
  CHSC87626  Collinsia rattanii Lowell Ahart; John Dittes, Josephine Guardino 2004-5-24 10956 Plumas Along the margins 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. 1251 Comment
  CHSC87627  Penstemon roezlii Lowell Ahart; John Dittes, Josephine Guardino 2004-5-24 10954 Plumas Along the margins 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. 1251 Comment
  CHSC87858  Carex brainerdii Lowell Ahart; John Dittes, Josephine Guardino 2004-6-6 11005 Plumas On the east side of a small drainage, on the north side of the logging road, about 1 1/2 miles (air) south of Lower Taylor Rock, about 7 1/2 miles (air) northeast of Quincy. 1517 Comment
  CHSC87862  Danthonia californica var. americana Lowell Ahart; John Dittes, Josephine Guardino 2004-6-6 11006 Plumas Near a very small flat drainage, on the east side of the logging road, about 3 miles (air) south of Lower Taylor Rock, about 7 miles (air) northeast of Quincy. 1344 Comment
  CHSC88004  Descurainia incisa subsp. incisa Lowell Ahart; John Dittes, Josephine Guardino, Robert Schlising 2004-7-3 11164 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
  CHSC88228  Carex bolanderi Lowell Ahart 2004-7-27 11312 Plumas At 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
  CHSC91905  Epilobium glaberrimum subsp. glaberrimum Lowell Ahart; Josephine Guardino 2005-8-9 12292 Plumas On the bottom of Fant Creek, about 150 yards northwest 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
  CHSC91916  Eriogonum umbellatum var. modocense 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
  CHSC91917  Juncus dubius Lowell Ahart; Josephine Guardino 2005-8-10 12311 Plumas Small meadow, along a small branch of Lights Creek, east side of Forest Road 27N54, about 5 1/2 miles (air) northwest of the Boulder Creek Work Center at Antelope Lake. 1821 Comment
  CHSC92124  Symphyotrichum spathulatum var. spathulatum Lowell Ahart; John Dittes 2005-9-19 12415 Plumas Along the west side of a good dirt road, about 1 1/4 miles east of Kettle Rock, about 1 1/4 miles southeast of Taylor Lake. 1998 Comment
  CHSC92129  Trifolium productum Lowell Ahart; John Dittes 2005-10-19 12417 Plumas Along the west side of a good dirt road, about 1 1/4 miles east of Kettle Rock, about 1 1/4 miles southeast of Taylor Lake. 1998 Comment
  CHSC92275  Agrostis variabilis Lowell Ahart; Josephine Guardino 2005-8-10 12324 Plumas Bog in a small wet meadow, a small branch of Lights Creek, east side of Forest Road 27N54, about 5 1/2 miles (air) northwest of the Boulder Creek Work Center at Antelope Lake. 1821 Comment
  CHSC92304  Carex utriculata Lowell Ahart; John Dittes 2005-9-20 12446 Plumas In the center of Mud Lake, about 1/2 mile northeast of Eisenheimer Peak, about 3/4 mile south of Wilcox Valley. 2029 Comment
  CHSC92309  Carex subfusca Lowell Ahart; Josephine Guardino 2005-8-9 12291 Plumas On the bottom of Fant Creek, about 150 yards northwest 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
  CHSC94127  Carex multicaulis Lowell Ahart 2006-7-3 12903 Plumas Near the west 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
  CHSC94200  Gilia capitata subsp. mediomontana Lowell Ahart 2006-7-9 12936 Plumas Near a small seep, about 20 yards south 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. 1661 Comment
  CHSC94660  Ludwigia palustris Lowell Ahart 2006-10-8 13415 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
  CHSC96849  Cryptantha affinis Lowell Ahart; John Dittes, Josephine Guardino 2007-6-8 14007 Plumas Around trees, 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
  CHSC96854  Cryptantha simulans Lowell Ahart; John Dittes, Josephine Guardino 2007-6-8 14008 Plumas Around trees, 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
  CHSC96859  Poa compressa Lowell Ahart; John Dittes, Josephine Guardino 2007-6-8 14030 Plumas Strand of Lake Davis, southeast of the end of the road, north end of Lake Davis. 1763 Comment
  CHSC96919  Ribes cereum var. cereum Lowell Ahart; John Dittes, Josephine Guardino 2007-6-8 13985 Plumas East side of an open rocky flat, 70 yards east of a poor dirt road, about a mile (air) north of the north end of Lake Davis. 1965 Comment
  CHSC96921  Collinsia torreyi var. wrightii Lowell Ahart; John Dittes, Josephine Guardino 2007-6-8 14006 Plumas Around trees, east side of an open rocky flat, 50 yards east of a poor dirt road, about a mile (air) north of the north end of Lake Davis. 1965 Comment
  CHSC96983  Juncus ensifolius Lowell Ahart; Josephine Guardino 2007-7-21 14366 Plumas Along a small stream, near a spring, south of the dirt road, about 200 yards west of the intersection, about 1/2 mile (air) south of Bagley Pass, about 400 yards north of Lake Davis. 1787 Comment
  CHSC97071  Eurybia integrifolia Lowell Ahart; Josephine Guardino 2007-7-21 14363 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
  CHSC97087  Potentilla gracilis var. fastigiata Lowell Ahart; Josephine Guardino 2007-7-21 14361 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
  CHSC97094  Epilobium ciliatum subsp. glandulosum Lowell Ahart; Josephine Guardino 2007-7-20 14345 Plumas Strand of Lake Davis, about 100 yards west of Long Point, northeast side of Lake Davis. 1763 Comment
  CHSC97099  Polygonum aviculare Lowell Ahart; Josephine Guardino 2007-7-21 14375 Plumas Along a small dry drainage, about 5 yards south of the Beckwourth Taylorsville Road, about 1/4 miles (air) northwest of the most northwest part of Lake Davis. 1813 Comment
  CHSC97100  Eriogonum vimineum Lowell Ahart; Josephine Guardino 2007-7-20 14318 Plumas Along a small drainage, northeast edge of a large meadow, east of Lighting Tree Campground, east of the paved road, east side of Lake Davis. 1789 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
  CHSC97149  Viola purpurea subsp. dimorpha Lowell Ahart; John Dittes, Josephine Guardino 2007-6-8 14021 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
  CHSC97154  Crepis occidentalis subsp. conjuncta Lowell Ahart; John Dittes, Josephine Guardino 2007-6-8 13987 Plumas East side of an open rocky flat, 30 yards east of a poor dirt road, about a mile (air) north of the north end of Lake Davis. 1965 Comment
  CHSC97159  Delphinium nudicaule Lowell Ahart; John Dittes, Josephine Guardino 2007-6-8 14009 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
  CHSC97212  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
  CHSC97248  Ericameria nauseosa var. speciosa Lowell Ahart; John Dittes 2007-8-9 14430 Plumas About 30 yards west of the poor dirt road, west slope of Mount Ingalls, about 6 miles (air) northwest of the north end of Lake Davis. 2551 Comment
  CHSC97262  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
  CHSC97273  Silene douglasii var. douglasii Lowell Ahart; John Dittes 2007-8-9 14434 Plumas About 50 yards west of the poor road, west slope of Mount Ingalls, about 6 miles (air) northwest of the north end of Lake Davis. 2551 Comment
  CHSC97280  Cordylanthus tenuis subsp. tenuis Lowell Ahart; John Dittes, Josephine Guardino 2007-8-10 14468 Plumas About 60 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
  CHSC97471  Psilocarphus tenellus var. tenellus Lowell Ahart; John Dittes 2007-6-16 14085 Plumas Graded road gutter, east of the 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
  CHSC97528  Carex nebrascensis Lowell Ahart; John Dittes 2007-6-16 14133 Plumas Bottom of a small stream, meadow, 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
  CHSC97531  Hordeum brachyantherum subsp. brachyantherum Lowell Ahart; John Dittes 2007-6-16 14150 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
  CHSC97546  Rorippa curvisiliqua var. orientalis Lowell Ahart; John Dittes 2007-6-17 14102 Plumas Gravel bars along a 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. 1647 Comment
  CHSC97547  Floerkea proserpinacoides Lowell Ahart; John Dittes 2007-6-17 14109 Plumas Gravel bars along a 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. 1647 Comment
  CHSC97557  Trifolium variegatum Lowell Ahart; John Dittes 2007-6-17 14186 Plumas Along 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
  CHSC97602  Castilleja tenuis Lowell Ahart; John Dittes 2007-6-16 14127 Plumas Gravel bars along 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
  CHSC97625  Myosotis discolor Lowell Ahart; John Dittes 2007-6-16 14108 Plumas On damp gravelly soil, gravel bars along a small stream, on the south side of 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. 1647 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
  HSC100761  Trifolium breweri Lowell Ahart, John Dittes, Josephine Guardino 2009-7-22 16128 Plumas E side of F.S. Rd. 27N92K, E side of Long Valley, 3.5 (air) mi. WSW of Greenville, 5.2 (air) mi. SE of Lake Almanor Dam. 1607 Comment
  JEPS102381  Cynoglossum officinale Lowell Ahart 2001-7-17 8910 Plumas about 2 1/2 air mi N of Humboldt Summit (E of a small branch of Butt Creek, sides of a poor logging road) 1828 Comment
  JEPS102425  Populus trichocarpa Lowell Ahart 2001-6-4 8751 Plumas Edge of the South Fork of the Feather River, about 1/4 mile NE of the Feather Fork Mine, about 2 miles NE of Little Grass Valley Reservoir, about 6 miles (air) NE of La Porte. 1615 Comment
  JEPS102513  Elatine chilensis Lowell Ahart 2001-9-18 9288 Plumas Near Freeman Creek, on the strand of Lake Davis. 1758 Comment
  JEPS102525  Prunus virginiana var. demissa Lowell Ahart 2001-8-28 9212 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
  JEPS102618  Sagina saginoides Lowell Ahart 2001-7-19 8941 Plumas Sand bars, on the banks of Hopkins Creek, about 100 yards NW of the East Branch of Hopkins Creek, about 1/2 mile (air) south of Turkey Town, about 2 1/2 miles (air) SE of Pilot Peak. 1828 Comment
  JEPS102641  Ericameria parryi var. latior Lowell Ahart 2001-8-28 9186 Plumas Along the sides of the dirt roads, along road C - Line of Roseburg Resources Company, 1/8 mile south of Highway 36 and 89 at sign of Roseburg Lumber Company, Almanor Tree Farm, A Producing Forest, about 5 miles (air) SW of Chester. 1402 Comment
  JEPS102822  Lythrum portula Lowell Ahart 2001-8-28 9214 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
  JEPS103374  Epilobium ciliatum subsp. ciliatum Lowell Ahart 2002-7-2 9823 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
  JEPS104066  Saxifraga odontoloma Lowell Ahart 2003-8-13 10503 Plumas On the e side of Hopkins Creek, ca 30 yd south of where Hopkins Creek forks, ca 1/8 mi south of Turkey Town, ca 1 mi (air) sw of Blue Nose Mountain, ca 10 1/2 mi (air) ne of La Porte. 1524 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
  JEPS106041  Descurainia incisa subsp. incisa Lowell Ahart, John Dittes, Josephine Guardino, Robert Schlising 2004-7-3 11164 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
  JEPS106135  Carex brainerdii Lowell Ahart, John Dittes, Josephine Guardino 2004-6-6 11005 Plumas On the east side of a small drainage, on the north side of the logging road, about 1 1/2 miles (air) south of Lower Taylor Rock, about 7 1/2 miles (air) northeast of Quincy 1517 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
  JEPS106217  Festuca occidentalis Lowell Ahart, John Dittes, Josephine Guardino 2004-6-6 11004 Plumas On the west side of a small drainage, on the north side of the logging road, about 1 1/2 miles (air) south of Lower Taylor Rock, about 7 1/2 miles (air) northeast of Quincy 1517 Comment
  JEPS106322  Myosurus apetalus var. borealis Lowell Ahart, John Dittes, Josephine Guardino, Robert Schlising 2004-6-14 11064 Plumas On the south side of the dirt road (Forest 24N10), about 1/4 mile west of Cow Creek, west of Lake Davis, about 9 1/4 miles northeast of Slote [Sloat] 1796 Comment
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Apr 8 2009
  JEPS107609  Carex jonesii Lowell Ahart, Josephine Guardino 2005-8-10 12323 Plumas Bog in small wet meadow, a small branch of Lights Creek, east side of Forest Road 27N54, about 5 1/2 miles (air) northwest of the Boulder Creek Work Center at Antelope Lake 1821 Comment
  JEPS107611  Carex jonesii Lowell Ahart, Josephine Guardino 2005-8-10 12322 Plumas Bog in a small wet meadow, a small branch of Lights Creek, east side of Forest Road 27N54, about 5 1/2 miles (air) northwest of the Boulder Creek Work Center at Antelope Lake 1821 Comment
  JEPS107698  Sambucus mexicana Lowell Ahart, John Dittes 2005-9-20 12455 Plumas On the south side of Forest Road 27N34, about 1 mile northeast of Eisenheimer Peak, about 3/4 mile south of Wilcox Valley 1984 Comment
  JEPS107708  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
  JEPS107862  Madia glomerata Lowell Ahart, Josephine Guardino 2005-8-9 12262 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
  JEPS107942  Juncus occidentalis Lowell Ahart, Josephine Guardino 2005-8-10 12309 Plumas Along a poor logging road, northeast of a small branch of Lights Creek, east side of Forest Road 27N54, about 5 1/2 miles (air) northwest of the Boulder Creek Work Center at Antelope Lake 1821 Comment
  JEPS110178  Juncus nevadensis Lowell Ahart 2006-10-8 13420 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
  JEPS110257  Carex multicaulis Lowell Ahart 2006-7-3 12903 Plumas Near the west 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
  JEPS110426  Carex echinata subsp. echinata Lowell Ahart 2006-7-9 12916 Plumas Small bog or wet meadow, below the basalt gravel road, about 2 miles (air) west of Tamarack Flat, about 4 miles (air) northwest of Little Grass Valley Reservoir 1648 Comment
  JEPS110526  Juncus ensifolius Lowell Ahart 2006-10-23 13490 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
  JEPS110537  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 o 1281 Comment
  JEPS110545  Heterocodon rariflorum Lowell Ahart 2006-10-23 13477 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
  JEPS113426  Eriogonum umbellatum var. nevadense Lowell Ahart, John Dittes 2007-8-9 14436 Plumas About 30 yards west of the poor dirt road, west slope of Mount Ingalls, about 6 miles (air) northwest of the north end of Lake Davis 2551 Comment
  JEPS113437  Polygonum shastense Lowell Ahart, John Dittes 2007-8-9 14444 Plumas About 120 yards east of the road, on the east slope of Mount Ingalls, about 6 miles (air) northwest of the north end of Lake Davis 2551 Comment
  JEPS113445  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
  JEPS113463  Allophyllum divaricatum Lowell Ahart, John Dittes, Josephine Guardino 2007-6-9 14048 Plumas 150 yards east of a poor dirt road, about a mile (air) north of the north end of Lake Davis 1965 Comment
  JEPS113545  Sidalcea oregana subsp. spicata Lowell Ahart, Josephine Guardino 2007-7-21 14371 Plumas Around pine trees, about 5 yards north of a large meadow, about 150 yards east of the bridge, about 60 yards south of the Beckwourth Taylorsville Road, about 2 1/2 miles (air) northwest of the most northwest part of Lake Davis 1793 Comment
  JEPS113559  Arnica chamissonis Lowell Ahart, John Dittes 2007-6-17 14199 Plumas Along Red Clover Creek, about 30 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
  JEPS113595  Plectritis macrocera Lowell Ahart, Josephine Guardino 2007-7-20 14319 Plumas South of a small drainage, northeast edge of a large meadow, east of Lighting Tree Campground, east of the paved road, east side of Lake Davis 1789 Comment
  JEPS113650  Eleocharis macrostachya Lowell Ahart, Josephine Guardino 2007-7-21 14385 Plumas Bottom of a small stream, about 80 yards south of the Beckwourth Taylorsville Road, south of the intersection with Forest Road 25N41Y, about 2 1/4 miles (air) northwest of the most northwest part of Lake Davis 1799 Comment
  JEPS113678  Hordeum jubatum Lowell Ahart, Josephine Guardino 2007-7-20 14326 Plumas Strand of Lake Davis, about 100 yards west of Long Point, northeast side of Lake Davis 1763 Comment
  JEPS113731  Carex sheldonii 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
  JEPS113779  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
  JEPS113787  Festuca rubra Lowell Ahart, Josephine Guardino 2007-7-21 14359 Plumas Along 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
  JEPS113801  Carex athrostachya Lowell Ahart, John Dittes, Josephine Guardino 2007-6-8 14032 Plumas Strand of Lake Davis, southeast of the end of the road, north end of Lake Davis 1763 Comment
  JEPS113819  Achnatherum occidentale subsp. californicum Lowell Ahart, John Dittes 2007-8-9 14449 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
  JEPS114426  Lythrum portula Lowell Ahart 2008-7-9 15066 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
  JEPS114526  Erigeron inornatus var. inornatus Lowell Ahart 2008-8-14 15198 Plumas 20 yards northeast of the metal gate, east side for Forest Road 22n68, about 50 yards west of the South Fork of the Feather River, about 1/2 mile northeast of Little Grass Valley Reservoir, about 5 miles (air) northeast of La Porte 1571 Comment
  JEPS114559  Spiranthes porrifolia Lowell Ahart 2008-8-13 15179 Plumas North side 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 LaPorte 1613 Comment
  JEPS114819  Bromus orcuttianus Lowell Ahart 2008-8-14 15212 Plumas 300 yards northeast of the metal gate, east side for Forest Road 22n68, about 100 yards west of the South Fork of the Feather River, about 1/2 mile northeast of Little Grass Valley Reservoir, about 5 miles (air) northeast of La Porte 1571 Comment
  JEPS114929  Carex jonesii Lowell Ahart 2008-7-16 15085 Plumas On the west side of a small stream, about 150 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 Porte 1597 Comment
  JEPS114938  Juncus macrandrus Lowell Ahart 2008-9-10 15391 Plumas Meadow (swamp, bog) about 100 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 4 1/2 miles (air) north of La Porte 1597 Comment
  JEPS115085  Platanthera leucostachys Lowell Ahart, John Dittes 2009-7-13 16049 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
  JEPS115091  Leucothoe davisiae Lowell Ahart, John Dittes 2009-7-14 16073 Plumas North of Forest Service Road 26N92, about 1.9 miles (air) southeast of Seneca, about 6 miles (air) south of Lake Almanor Reservoir Dam 1677 Comment
  JEPS115110  Cornus sericea subsp. sericea Lowell Ahart, John Dittes 2009-7-27 16167 Plumas On damp soil, on the southwest side of a stream, headwaters of Grizzly Gulch, 2.1 miles (air) northeast of Butt Valley Reservoir Dam 1479 Comment
  JEPS115124  Panicum capillare Lowell Ahart, John Dittes, Josephine Guardino 2009-7-29 16220 Plumas On damp bare soil, below the high water line of Lake Almanor, 1,849 feet northwest of Lake Almanor Dam 1591 Comment
  JEPS115331  Rotala ramosior Lowell Ahart, John Dittes 2009-9-7 16383 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
  JEPS115796  Eriogonum nudum var. deductum Lowell Ahart, John Dittes, Josephine Guardino 2009-6-14 15864 -C Plumas Cut bank of Forest Road 27N01Y, about 1.3 miles (air) west of Lake Almanor Dam 1462 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
  JEPS115859  Rosa gymnocarpa Lowell Ahart, John Dittes 2009-7-15 16078 Plumas Along a small wash, south side of Forest Service Road 27N671, northeast of Forest Service Road 26N67, about 2.8 miles (air) southeast of Butt Valley Reservoir Dam 1677 Comment
  JEPS115895  Eleocharis acicularis var. bella Lowell Ahart, John Dittes, Josephine Guardino 2009-7-22 16153 Plumas Meadow on the west side of Forest Service Road 27N92K, 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
  JEPS115900  Festuca subulata Lowell Ahart, John Dittes, Josephine Guardino 2009-7-21 16107 Plumas About 20 yards east 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
  JEPS115943  Scirpus microcarpus Lowell Ahart, John Dittes 2009-7-14 16033 Plumas On damp to wet soil, seep, on the north side of Forest Service Road 27N28, 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
  JEPS118383  Polygonum phytolaccifolium Lowell Ahart 2011-9-17 17664 Plumas On the south side of an unnamed stream that flows east into Little Grass Valley Reservoir and opposite the Black Rock, about 20 yards west of the paved road, about 1/8 mile west of Little Grass Valley Reservoir 1595 Comment
  JEPS120773  Elatine Lowell Ahart 2013-9-11 19023 -A-L Plumas Strand of Antelope Lake, where Boulder Creek enters the lake, about 15 air miles NE of Taylorsville. Comment
  JEPS122100  Stachys rigida var. rigida Lowell Ahart 2014-8-24 19745 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. Comment
  JEPS122165  Elatine Lowell Ahart 2014-8-20 19710 Plumas Near springs on the east edge of Lake Almanor, about 200 yards north of the causeway across Lake Almanor, about 1 1/4 miles east of Chester. Comment
  JEPS122328  Sagina saginoides Lowell Ahart 2014-9-9 19837 Plumas Below the high water line, on the sides of Sly Creek, Sly Creek Reservoir, about 7 miles (air) southwest of La Porte. Comment
  JEPS123952  Orthilia secunda Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-7-31 20421 Plumas On the south side of Blue Lake, 2,710 feet north of Forest Service Road 29N18, 2.89 air miles west-southwest of Sifford Mt., 6.26 air miles south-southeast of Lassen Peak. Comment
  JEPS124032  Navarretia intertexta subsp. propinqua Lowell Ahart 2015-7-4 20279 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
  JEPS124127  Utricularia minor Lowell Ahart 2015-10-3 20538 Plumas 300 yards west of the Round Valley Reservoir Dam, about 2 1/2 miles (air) northwest of Crescent Mills. Comment
  JEPS124136  Eriogonum umbellatum var. ahartii Lowell Ahart, John Deurloo 2015-8-25 20529 Plumas 2.8 miles (air) east-northeast of Silver Lake, 3.3 miles (air) south of Twain, 7.8 miles (air) west-northwest of Quincy. Comment
  JEPS126590  Castilleja applegatei subsp. pinetorum Lowell Ahart 2016-6-29 21064 Plumas South slope of Table Mountain, about 2 miles (air) northwest of Tamarack Flat, about 4 miles (air) northwest of Little Grass Valley Reservoir Dam. Comment
  JEPS127125  Monardella odoratissima subsp. pallida Lowell Ahart 2016-8-30 21327 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
  JEPS127200  Viola bakeri Lowell Ahart 2016-6-2 20909 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
  JEPS127321  Castilleja applegatei subsp. pinetorum Lowell Ahart 2016-6-29 21063 Plumas East slope of Table Mountain, about 2 miles (air) northwest of Tamarack Flat, about 4 miles (air) northwest of Little Grass Valley Reservoir Dam. Comment
  JEPS87598  Osmorhiza berteroi Lowell Ahart 1994-7-7 7453 Plumas n side of trail about 3 (air) mi se Pilot Peak (Plumas and Sierra Cos.); Pacific Crest Trail, Bunker Hill Ridge 2011 Comment
  JEPS87745  Sanicula graveolens Lowell Ahart 1994-6-15 7340 Plumas about 1 air mi w Little Grass Valley Reservoir (near intersection of Lumpkin Ridge Road and the road to Tamarack Flat, about 200 yards e of a logging road); w of Little Grass Valley Reservoir 1767 Comment
  JEPS87895  Eriogonum strictum var. anserinum Lowell Ahart 1994-7-20 7483 Plumas about 1/2 mi nw Mount Etna (open bare area on both sides of trail, Plumas Co. and Sierra Co.); Pacific Crest Trail, Bunker Hill Ridge 1981 Comment
  JEPS95401  Phlox diffusa Lowell Ahart 1994-6-12 7317 Plumas 1 1/4 air miles S of Bucks Lake (near Cedar Flat, W side of Faggs Mine Road, SW of a small branch of Willow Creek) 1706 Comment
  JEPS98449  Eleocharis torticulmis Lowell Ahart 2000-5-21 8383 Plumas 5 air miles NW of Quincy (Butterfly Valley, 150 ft NW of the pond) 1005 Comment
  RSA0039367  Thysanocarpus curvipes var. curvipes Lowell Ahart, Richard Rabeler, L. P. Janeway, Linnea Hanson 2005-4-20 11747 Plumas On the north side of Highway 70, about 1/8 mile east of Chambers Creek, about 1 mile northeast of Indian Jim Campground. 629 Comment
  RSA0112642  Dieteria canescens var. canescens Lowell Ahart 2013-9-11 19025 Plumas On both sides of the paved road, on the north side of Antelope Lake, about 1/2 miles west of Antelope Creek, about 16 miles (air) northeast of Taylorsville. 1584 Comment
  RSA699791  Scirpus congdonii L. Ahart, John Dittes, Josephine Guardino, Robert Schlising 2004-7-3 11168 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
  RSA715663  Epilobium glaberrimum subsp. glaberrimum L. Ahart, Josephine Guardino 2005-8-9 12292 Plumas On the bottom of Fant Creek, about 150 yards northwest 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. 1598 Comment
  RSA715684  Schedonorus arundinaceus L. Ahart, Josephine Guardino 2005-8-9 12293 Plumas On the bottom of Fant Creek, about 150 yards northwest 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. 1598 Comment
  RSA715689  Pyrrocoma carthamoides var. cusickii L. Ahart, Josephine Guardino 2005-8-10 12306 Plumas Along a poor logging road, northeast of a small branch of Lights Creek, east side of Forest Road 27N54, about 5 1/2 miles (air) northwest of the Boulder Creek Work Center at Antelope Lake. 1822 Comment
  RSA716594  Potamogeton richardsonii Lowell Ahart, John Dittes 2005-9-19 12376 Plumas On the south side of Taylor Lake, about 6 miles (air) southwest of Antelope Lake. 2081 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
  RSA718508  Rorippa curvisiliqua L. Ahart 2006-10-23 13476 Plumas On the south side of Slate Creek (there is a large gravel flat caused by the dam), about 80 yards east of where the road ends, about 100 yards north of the dam across Slate Creek, about 1/8 mi. northeast of Scales Road., About 5.5 miles (air) NE of Strawberry Valley. 1282 Comment
  RSA718513  Juncus bufonius var. bufonius L. 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 of Strawberry Valley. 1282 Comment
  RSA718946  Chenopodium strictum var. glaucophyllum L. Ahart 2006-10-8 13391 Plumas North side of the North Fork of the Feather River, on the south side of Highway 70, about 1/8 mile southwest of Chambers Creek. 623 Comment
  RSA726292  Astragalus lentiformis L. Ahart, John Dittes 2007-6-16 14123 Plumas West of a small stream, on the south side of County Road 111 (Beckwourth Gensee Road), 10 yards east of Forest Road 24N08, Red Clover Valley, about 2 miles (air) north of the north end of Lake Davis. 1648 Comment
  RSA726370  Penstemon deustus var. suffrutescens L. Ahart, John Dittes, Josephine Guardino 2007-6-8 13983 Plumas About a mile (air) north of the north end of Lake Davis. 1966 Comment
  RSA726383  Gilia leptalea L. Ahart, Josephine Guardino 2007-7-21 14381 Plumas South of the intersection with Forest Road 25N41Y, about 2 1/4 miles (air) northwest of the most northwest part of Lake Davis. 1800 Comment
  RSA754965  Amelanchier alnifolia var. semiintegrifolia L. Ahart 2008-6-5 14813 Plumas Good logging road north of the South Fork of the Feather River, about 0.5 mile southwest of the Feather Fork Mine, about 1 mile northeast of Little Grass Valley Reservoir. Comment
  RSA768848  Elytrigia intermedia subsp. intermedia L. Ahart 2008-9-10 15370 Plumas North side of East Branch Creek, south side of Quincy La Porte Road, about 1.75 air miles south of Little Grass Valley Reservoir, about one mine northeast of La Porte. 1594 Comment
  RSA769804  Aster integrifolius L. Ahart 2008-9-10 15377 Plumas South edge of Onion Valley, about 3/4 mile northwest of Pilot Peak, about 0.5 miles east of the Quincy La Porte Road, about 9.5 air miles northeast of La Porte. 1917 Comment
  SEINET4292088 Image available Carex athrostachya L. Ahart, Guardino, J 2005-1 12269 Plumas Yellow Pine Forest. 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 miair) NW of the Boulder Creek Work Center at Antelope Lake Comment
  SEINET7550687 Image available Carex athrostachya Lowell Ahart, Josephine Guardino 2005-8-9 12269 Plumas 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
  UCD169925  Lotus corniculatus Lowell Ahart; John Dittes 2009-7-14 16077 Plumas On the eastside 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. In the seed trade, known as Upright Bird's-foot Trefoil. 1607 Comment
  UCSC011300  Trifolium productum Lowell Ahart, John Dittes 2005-9-19 12417 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. 1999 Comment
  CAS-BOT-BC114125  Cyperus squarrosus Lowell Ahart 1985-8-1 30152 A Plumas Antelope Reservoir, on silty soil. 1584 Comment
  CAS-BOT-BC114933  Carex whitneyi Lowell Ahart 1977-7-9 1453 Plumas 10 mi NE of La Porte. Edge of the road, 1/2 mi below the Bunker Hill Mine. 1800 Comment
  CAS-BOT-BC14259  Boechera pinetorum Lowell Ahart 1989-7-7 6371 Plumas About 12 miles northeast of La Porte. About 0.5 mile north of the Bunker Hill Mine. On the east side of Bunker Hill Crk. 1828 Comment
  CAS-BOT-BC74641  Rorippa curvisiliqua Lowell Ahart 1985-7-11 5127 Plumas Little Grass Valley Reservoir, where the South Fork of the Feather River flows into the lake. 1584 Comment
  CDA33185  Eleocharis engelmannii L. Ahart 2001-8-28 9197 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 Comment
  SBBG128056  Perideridia lemmonii L. Ahart, J. Dittes 2009-7-28 16203 Plumas NW side of a logging rd, seeps, slope NW of mine, W (above) Forest Service Rd 27N28Y, 2.9 mi NW of Butt Valley Reservoir Dam 1581 Comment
  SBBG128080  Juncus howellii L. Ahart, J. Dittes 2009-8-28 16355 Plumas edge of a seep, on the N side of Forest Service Rd 27N98, headwater of Clear Crk, ca. 2 mi N of Butt Valley Reservoir Dam, ca. 3 mi SW of Lake Almanor Reservoir Dam 1507 Comment
  SBBG128714  Monardella odoratissima subsp. pallida L. Ahart 2008-8-13 15175 Plumas W side of La Porte Rd, W of E Branch Crk, ca. 1.75 mi S of Little Grass Valley Reservoir, ca. 1 mi NE of La Porte 1613 Comment
  SEINET10451993  Lotus neoincanus Lowell Ahart, Peter Ahart 1985-7-1 Ahart 5095 Plumas About 1/2 mile east of Cement Creek, about 1/2 mile north of Onion Valley Creek, about 4 miles north-west of Pilot Park. Comment
  SEINET10467317  Eleocharis bella Lowell Ahart 1985-7-11 Ahart 5137 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
  SEINET10472259  Juncus balticus Lowell Ahart, Peter Ahart 1983-8-17 Ahart 4317 Plumas Near Onion Valley, west of Pilot Peak, near the Quincy-LaPorte Rd, northeast of La Porte. Red Fir Forest; 2000 m. 2000 Comment
  SEINET10599379  Melica fugax Lowell Ahart 1986-7-8 Ahart 5346 Plumas On damp rocky soil, in an area of bare open serpentine, about 1 mile north-west of Pilot Peak, about 14 miles north-east of La Porte. Red Fir Forest. 1981 Comment
  SEINET10841106  Gayophytum humile Lowell Ahart 1985-7-11 Ahart 5142 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
  SEINET10965675  Aquilegia formosa Lowell Ahart, Peter Ahart 1983-8-17 Ahart 4335 Plumas Near Onion Valley, west of Pilot Peak, near the Quincy-LaPorte Rd, northeast of La Porte. Red Fir Forest; 2000 m. 2000 Comment
  SEINET11268225  Erigeron petrophilus var. sierrensis Lowell Ahart 1993-9-10 7225 Plumas Near the west side of the South Fork of the Feather River, on the north side of the dirt road, about 1 (air) mile south west of Pilot Peak.; 0 Comment
  UCSB64022  Salsola tragus Ahart, Lowell 1981-9-6 Plumas Along Indian Creek, about 1/2 mile south-west of the intersection of Highway 89 and Arlington Road, about 1 1/2 miles south-west of Crescent Mills 1097 Comment
  CHSC83964  Chaenactis fremontii 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
  CHSC83969  Cryptantha angustifolia Emma M. Ahart 2003-3-21 San Diego Desert Gardens Ocotillo Flats, north of the end of DiGiorgio Road, Borrego Springs, Anza-Borrego Desert State Park. 914 Comment
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Mar 6 2011
  CHSC118543  Purshia tridentata var. tridentata Lowell Ahart; John Dittes, Josephine Guardino 2017-6-15 21413 Shasta Along poor dirt road extending from end of Mackey's Cove Road to northeast shore of Fall River Lake, about 0.5 mile northwest of airport runway, about 1.2 miles (air) north of Fall River Mills, Fall River Valley. 1008 Comment
  CHSC118565  Navarretia heterandra Lowell Ahart; John Dittes, Josephine Guardino 2017-6-15 21392 Shasta Along poor dirt road extending from end of Mackey's Cove Road to northeast shore of Fall River Lake, about 0.5 mile northwest of airport runway, about 1.2 miles (air) north of Fall River Mills. Fall River Valley. 1008 Comment
  CHSC118575  Salvia aethiopis Lowell Ahart; John Dittes, Josephine Guardino 2017-6-15 21406 Shasta East of a poor dirt road, near Fall River Lake, about 0.8 mile northwest of airport runway, about 1.2 miles (air) north of Fall River Mills, Fall River Valley. 1007 Comment
  CHSC84066  Ranunculus muricatus Lowell Ahart; John Dittes 2003-5-12 10160 Shasta About 50 yards east 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
  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
  CHSC84093  Lasthenia californica Lowell Ahart; John Dittes 2003-5-12 10132 Shasta Near a marshy 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
  CHSC84125  Trifolium fucatum Lowell Ahart; John Dittes 2003-5-12 10151 Shasta In a vernal pool, pasture field, 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
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Oct 5 2019
  CHSC99237  Vicia americana var. americana Lowell Ahart; John Dittes 2008-6-19 14839 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
  CHSC99241  Sisymbrium altissimum Lowell Ahart; John Dittes 2008-6-19 14859 Shasta Open grassland, about 50 yards east of the Pit River, about 100 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
  JEPS104269  Anchusa officinalis Lowell Ahart 2003-5-12 10127 Shasta Rd margin, on the south side of Ash Creek Rd, 500 feet south of Ash Creek, 2.0 mi (air) ne of confluence of the Sacramento River and Ash Creek, ca 7 mi (air) east-southeast of Anderson. 128 Comment
  JEPS114473  Phacelia heterophylla subsp. virgata Lowell Ahart, John Dittes 2008-6-19 14852 Shasta On dry gray soil around rocks about 140 yards east of the Pit River, about 10 yards west of 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 Rive 993 Comment
  JEPS120923  Festuca myuros Lowell Ahart, John Dittes, Todd Sloat 2013-6-9 18784 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
  SEINET3449112  Castilleja attenuata Lowell Ahart, John Dittes 2003-5-12 10161 Shasta Cottonwood, Cottonwood, about 12 air miles east/northeast, 2.8 air miles west/southwestof Darah Springs State Fish Hatchery, about 0.25 miles south of the Coleman Canal, about 250 yards south of the barn 260 Comment
  SEINET3450910  Microseris elegans Lowell Ahart, John Dittes 2003-5-12 10134 Shasta Cottonwood, Cottonwood, about 12 miles by air east/northeast of Cottonwood, 2.8 air miles west/southwest of Darah Springs State Fish Hatchery, about 0.25 miles south of the Coleman Canal, 50 yards east of the barn 260 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-BC227907  Elymus elymoides Lowell Ahart 1977-8-2 1506 Sierra Mt. Fillmore is about 12 miles north-east of La Porte 2000 Comment
  CAS-BOT-BC236782  Keckiella breviflora Lowell Ahart 1982-7-28 3684 Sierra About 1/4 mile north of the Pacific Mine about 5 miles east of La Porte 1700 Comment
  CAS-BOT-BC267525  Eriogonum umbellatum Lowell Ahart 1982-7-28 3698 Sierra About 1/4 mile north of the Pacific Mine, about 5 miles east of La Porte 1700 Comment
  CAS-BOT-BC428062  Dudleya cymosa subsp. cymosa Lowell Ahart 1982-7-28 3682 Sierra About 1/4 mile north of the Pacific Mine, about 5 miles east of La Porte 1700 Comment
  CAS-BOT-BC45431  Arctostaphylos nevadensis Lowell Ahart 1975-6-28 s.n. Sierra 2 mi. e. of Gibsonville. 1981 Comment
  CAS-BOT-BC56589  Rhododendron columbianum Lowell Ahart 1969-8-14 s.n. Sierra Near Baltimore Lake 2133 Comment
  CAS-BOT-BC68234  Cheilanthes gracillima Lowell Ahart 1982-7-28 3716 Sierra Near the Pacific Mine, about 5 miles east of La Porte. 1700 Comment
  CHSC105543  Juncus chlorocephalus Lowell Ahart 2010-9-15 17190 -A Sierra Along the west sisde of a poor road, about 15 yards north of the first pond, about 20 yards northwest of the cabin, about 50 yards southwest of the middle pond, at the spring, about 2 3/4 miles (air) north of Yuba Pass on Highway 49, about 4 miles (air) east of Haskell Peak. 2134 Comment
  CHSC105829  Carex laeviculmis Lowell Ahart 2010-8-3 17032 Sierra On a poor logging road, about 100 yards east of Negro Creek, about 1/4 mile (air) southwest of the Burlington Mine, about 1 3/4 miles (air) northwest of Middlewaters, about 8 miles (air) northeast of Alleghany. 1731 Comment
  CHSC105984  Bromus carinatus var. carinatus Lowell Ahart 2010-9-15 17177 Sierra Along the poor road, 5 yards north of the first pond, 8 yards northwest of the cabin, at the spring, about 2 3/4 miles (air) north of Yuba Pass on Highway 49, about 4 miles (air) east of Haskell Peak. 2134 Comment
  CHSC10783  Erythronium purpurascens Lowell Ahart 1969-5-18 Sierra Vicinity of Sierra and Yuba County line. Poverty, 10 miles S. E. of La Porte. 1219 Comment
  CHSC108101  Stellaria obtusa Lowell Ahart 2011-9-23 17716 Sierra On the east side of a small stream that flows into Pass Creek, about 100 yards north of Pass Creek, about 300 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
  CHSC108119  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
  CHSC109881  Eleocharis obtusa Lowell Ahart 2012-9-18 18454 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
  CHSC115184  Fragaria vesca Lowell Ahart 2015-5-9 20170 Sierra On the west 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
  CHSC115255  Heterocodon rariflorum Lowell Ahart 2015-5-9 20162 Sierra On the north side of 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
  CHSC115305  Phacelia vallicola Lowell Ahart 2015-5-9 20160 Sierra Small broken rock slide, on the north side of the Canyon Creek Trail, trail on the north side of the North Fork of the Yuba Rover, about 300 yards west of Highway 49, about one mile west of Indian Valley. Mixed Evergreen Forest. 692 Comment
  CHSC32076  Anemone drummondii L. Ahart 1975-6-28 822 Sierra 2 mi e of Gibsonville. 1981 Comment
  CHSC32077  Draba albertina L. Ahart 1975-7-13 878 Sierra In meadow, Ahart Camp, in French Meadows, 3 mi w of Webber Lake. 2133 Comment
  CHSC41397  Chaenactis douglasii var. douglasii Lowell Ahart 1986-7-1 5333 Sierra 1/4 mile east of Johnsville Road, about 1/2 mile east of Lake Delahunty, about 8 miles north-east of La Porte. 1828 Comment
  CHSC42495  Oxyria digyna Lowell Ahart 1977-8-2 1531 Sierra In a large broken rock pile on the north side of Mt. Fillmore, near the summit, about 12 miles north-east of La Porte. 2255 Comment
  CHSC43441  Boechera sparsiflora Lowell Ahart 1977-4-20 1319 Sierra Road cut along the Foote Road, about 1 mile south of Alleghany. 1280 Comment
  CHSC43523  Eleocharis quinqueflora Lowell Ahart 1978-9-26 1813 Sierra Small meadow, on the north side of Mount Fillmore, about 12 miles north-east of La Porte. 2011 Comment
  CHSC44848  Erigeron glacialis var. glacialis Lowell Ahart 1975-8-17 939 Sierra Near Pass Creek, in French Meadows, about 3 air miles west and 1/2 mile south of Webber Lake. 2133 Comment
  CHSC44862  Erigeron reductus var. reductus Lowell Ahart 1975-8-17 933 Sierra South of French Meadows, about 3 air miles west and 1/2 mile south of Weber Lake. 2286 Comment
  CHSC44873  Hieracium albiflorum Lowell Ahart 1975-8-17 936 Sierra On a mountain side, under trees, near French Meadows, about 3 air miles west and 1/2 mile south of Webber Lake. 2133 Comment
  CHSC46528  Triteleia ixioides subsp. anilina Lowell Ahart 1975-8-17 951 Sierra Near the edge of Jones Valley, about 3 miles west and 2 miles south of Webber Lake. 2286 Comment
  CHSC47405  Cuscuta subinclusa Lowell Ahart 1974-9-6 623 Sierra On the south side of Johnsville Road, by large rocks, south of the Big Rocks, south-east of Mount Etna, about 10 miles north-east of La Porte. 1828 Comment
  CHSC47416  Quercus chrysolepis Lowell Ahart 1976-8-10 1186 Sierra On a dry hillside, about 6 air miles west of Downieville. 1371 Comment
  CHSC54585  Trifolium monanthum subsp. monanthum Lowell Ahart 1991-7-22 5581 Sierra In French Meadow, about 1/4 mile south of Henness Pass Road, about 3 miles north-west of Webber Lake. 2133 Comment
  CHSC58956  Castilleja miniata Lowell Ahart 1992-7-17 6786 Sierra Along a logging road, about 2 (air) miles east of Quartz Point, about 6 (air) miles south-east of Downieville. 1706 Comment
  CHSC59544  Gentianopsis simplex Lowell Ahart 1992-8-6 6915 Sierra North of Black Jack Ravine, about 1 mile south of Granite Mountain, about 1/2 mile west of Harris Meadow. 1676 Comment
  CHSC61774  Antennaria media Lowell Ahart 1993-9-10 7209 Sierra On the north side of Mount Fillmore, about 1 1/4 miles south of the dirt road from Gibsonville to Johnsville. 2225 Comment
  CHSC61779  Crepis pleurocarpa Lowell Ahart 1993-9-10 7218 Sierra Ridge, on the west side of Mount Fillmore, about 1 1/2 miles south of the dirt road from Gibsonville to Johnsville. 2316 Comment
  CHSC61782  Erigeron glacialis var. glacialis Lowell Ahart 1993-9-10 7223 Sierra On the north side of Mount Fillmore, about 1 1/2 miles south of the dirt road from Gibsonville to Johnsville. 2255 Comment
  CHSC61791  Lupinus obtusilobus Lowell Ahart 1993-9-10 7213 Sierra On the north side of Mt. Fillmore, about 1 1/2 miles south of the dirt road from Gibsonville to Johnsville. 2286 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
  CHSC61924  Gayophytum diffusum subsp. parviflorum Lowell Ahart 1993-9-24 7256 Sierra On the east side of the stream on the north side of Mount Fillmore, west of the poor dirt road that ends at a stream, about 3/4 mile south of the dirt road from Gibsonville to Johnsville. 2133 Comment
  CHSC61929  Carex spectabilis Lowell Ahart 1993-9-24 7257 Sierra Along the west edge of the small stream on the north side of Mount Fillmore, below a large falls, about 1/2 mile south of the dirt road from Gibsonville to Johnsville. 2103 Comment
  CHSC63169  Galium aparine Lowell Ahart 1994-7-7 7463 Sierra On the north side of the Pacific Crest Trail, on Bunker Hill Ridge, about 3/4 mile (air) south of Pilot Peak. 2011 Comment
  CHSC63170  Salix lucida subsp. lasiandra Lowell Ahart 1994-7-1 7440 Sierra On the north side of Henness Pass Road, at Keystone Gap, east of Keystone Mountain, about 1 1/2 miles north-east of Middlewaters, about 11 miles (air) north-east of Alleghany. 1889 Comment
  CHSC66598  Trifolium monanthum subsp. parvum Lowell Ahart 1996-7-25 7688 Sierra In open forest and meadows, north of the old Henness Pass Road, just west of French Meadow, about 2 miles west of Webber Lake. 1950 Comment
  CHSC78802  Gnaphalium palustre Lowell Ahart 2000-10-8 8703 Sierra Strand of a small lake, about 100 yards west of the Pacific Crest Trail and Bunker Hill Ridge, about 1 1/2 miles southeast of Pilot Peak, about 8 miles (air) northeast of La Porte. 1920 Comment
  CHSC80995  Poa palustris Lowell Ahart 2001-8-10 9072 Sierra Wet 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
  CHSC92033  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2005-8-30 12340 Sierra On a gravel bar, on the east side of Pass Creek, about 1/8 mile south of French Meadow, about 2 1/2 miles west of Webber Lake. 2032 Comment
  CHSC92088  Delphinium glaucum Lowell Ahart 2005-8-30 12342 Sierra On the east side of Pass Creek, about 1/8 mile south of French Meadow, about 2 1/2 miles west of Webber Lake. 2032 Comment
  CHSC94148  Diplacus mephiticus Lowell Ahart 2006-6-21 12837 Sierra About 30 yards west of the road, about 2 1/2 miles (by road) west of Forest. 1397 Comment
  CHSC94158  Malacothrix clevelandii Lowell Ahart 2006-6-21 12816 Sierra On the south side of the Foote Road, about 2.7 miles (by road) southwest of Alleghany. 1103 Comment
  CHSC94173  Streptanthus tortuosus var. suffrutescens Lowell Ahart 2006-6-21 12822 Sierra On the north side of the road, about 2 miles (by road) west of Forest. 1329 Comment
  CHSC94180  Clarkia rhomboidea Lowell Ahart 2006-6-21 12798 Sierra On the west side of the Foote Road, about 4 miles (by road) southwest of Alleghany. 849 Comment
  CHSC94232  Epilobium minutum Lowell Ahart 2006-6-28 12885 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
  HSC97047  Castilleja applegatei subsp. pinetorum L. Ahart 2006-6-28 12879 Sierra About 3/4 mi. E of Lake Delhunty, about 2 mi. NE of Gibsonville 1904 Comment
  JEPS102363  Solidago spectabilis Lowell Ahart 2001-8-10 9070 Sierra about 1 air mile S of Stampede Reservoir (Hobart Mills Road, E side, about 100 ft SW of the power pole) 1798 Comment
  JEPS107593  Mimulus lewisii Lowell Ahart 2005-8-30 12346 Sierra On the east side of Pass Creek, about 1/8 mile south of French Meadow, about 2 1/2 miles west of Webber Lake 2032 Comment
  JEPS110044  Phacelia procera Lowell Ahart 2006-6-21 12847 Sierra On the west side of the Foote Road, about 4 miles (by road) southwest of Alleghany 849 Comment
  JEPS110473  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
  JEPS117424  Luzula cascadensis Lowell Ahart 2010-8-3 17033 Sierra Disturbed area along a small stream that flows into Negro Creek, east side of the poor logging road, about 100 yards east of Negro Creek, about 1/8 mile (air) west of the Burlington Mine, about 1 3/4 miles (air) northwest of Middlewaters, about 8 miles (a 1731 Comment
  JEPS117435  Alnus incana subsp. tenuifolia Lowell Ahart 2010-9-15 17194 Sierra On the northwest edge of the first pond, south side of the road and west of the cabin, at the spring, about 2 3/4 miles (air) north of Yuba Pass on Highway 49, about 4 miles (air) east of Haskell Peak 2134 Comment
  JEPS117447  Polygonum douglasii subsp. douglasii Lowell Ahart 2010-9-15 17165 Sierra Open areas, around trees, about 20 yards northwest of the cabin, about 50 yards southwest of the middle pond, at the spring, about 2 3/4 miles (air) north of Yuba Pass on Highway 49, about 4 miles (air) east of Haskell Peak 2134 Comment
  JEPS117601  Carex nervina Lowell Ahart 2010-9-15 17180 Sierra East stream edge and east of the second pond, about 100 yards north of the cabin, at the spring, about 2 3/4 miles (air) north of Yuba Pass on Highway 49, about 4 miles (air) east of Haskell Peak 2134 Comment
  JEPS120158  Eleocharis obtusa Lowell Ahart 2012-9-18 18454 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. Comment
  JEPS124068  Collomia tinctoria Lowell Ahart 2015-5-9 20174 Sierra About 3/4 mile west of Highway 49, about 1 3/4 mile west of Indian Valley. Comment
  JEPS124078  Claytonia parviflora subsp. parviflora Lowell Ahart 2015-5-9 20189 Sierra About 3/4 mile west of Highway 49, about 1 3/4 miles west of Indian Valley. Comment
  JEPS87603  Arabis rectissima var. rectissima Lowell Ahart 1994-7-1 7444 Sierra about 11 mi air ne Alleghany (about 1.5 mi ne of Middlewaters, on n side of larger pond, on n side of Henness Pass Road, at Keystone Gap, e of Keystone Mountain); Keystone Gap 1889 Comment
  JEPS98300  Eleocharis decumbens Lowell Ahart 2000-7-13 8587 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
  JEPS98513  Eleocharis quinqueflora Lowell Ahart 2000-7-13 8589 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
  JEPS98957  Potentilla rivalis Lowell Ahart 2001-8-10 9073 Sierra Strand of Stampede Reservoir, about 1 mile SW of Henness Pass Road, about 1 1/4 miles NW of Stampede Reservoir Dam. 1810 Comment
  RSA0035332  Juncus nevadensis var. nevadensis Lowell Ahart 2012-9-18 18453 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
  RSA719211  Erysimum capitatum var. capitatum L. Ahart 2006-6-21 12838 Sierra About 30 yards east of Lucky Dog Creek, about 100 yards west of the road, about 2 1/2 miles (by road) west of Forest. 1398 Comment
  RSA794698  Penstemon gracilentus L. Ahart 2010-9-15 17168 Sierra About 20 yrds NW of the cabin, about 50 yrds SW of the middle pond, At the spring, About 2.75 air miles north of Yuba Pass on Hwy 49, about 4 air miles east of Haskell Peak. 2135 Comment
  RSA796049  Madia glomerata L. Ahart 2011-9-23 17711 Sierra 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 air miles northwest of Webber Lake. 2016 Comment
  SBBG119945  Madia exigua L. Ahart 2006-6-21 12803 Sierra W side of the Foote Rd, ca. 3.7 rd mi SW of Alleghany 1093 Comment
  UC1586481  Navarretia capillaris Lowell Ahart 1991-7-22 6676 Sierra about 1/4 mi s Henness Pass Road (along a small stream in French Meadow, about 3 mi nw of Webber Lake); French Meadow 2133 Comment
  UC1609018  Veronica cusickii Lowell Ahart 1993-9-10 7187 Sierra about 1 mi sw of the firt road from Gibsonville to Johnsville (n side of Mount Fillmore); Mount Fillmore 2133 Comment
  CAS-BOT-BC15778  Boechera Lowell Ahart 1980-9-9 2603 Sierra Sierra Nevada. Rocky gorge between the outlet of Webber Lake and Little Truckee River. 2200 Comment
  CAS-BOT-BC37307  Cardamine breweri Lowell Ahart 1978-8-13 s.n. Sierra About 0.5 mile east of Jackson Meadow Reservoir. 2100 Comment
  CAS-BOT-BC458071  Orthilia secunda Lowell Ahart 1976-10-11 s.n. Sierra Mt. Fillmore 2133 Comment
  CAS-BOT-BC527376  Triteleia montana Lowell Ahart 1986-7-1 5332 Sierra Dirt road about 1/2 mile between Mt. Etna and Mt. Filmore, about 10 miles north-east of La Porte 1981 Comment
  CAS-BOT-BC57771  Isoetes Lowell Ahart 1976-9-28 s.n. Sierra 1 1/4 mi. nw. of Mt. Etna. 1828 Comment
  CAS-BOT-BC74667  Rorippa curvisiliqua Lowell Ahart 1983-10-27 4480 Sierra About 2 miles SE of Jackson Meadow Reservation, about 1 mile south of Pass Creek, near Jackson Meadows Reservation. 2200 Comment
  CAS-BOT-BC87424  Streptanthus polygaloides Lowell Ahart 1978-6-4 s.n. Sierra 5 miles south of Alleghany. 1300 Comment
  CAS-BOT-BC8786  Delphinium gracilentum Lowell Ahart 1981-6-23 2873 Sierra Near Mt. Etna 2000 Comment
  HSC96838  Malacothrix clevelandii L. Ahart 2006-6-21 12816 Sierra S side of Foote Rd., about 2.7 mi. SW of Alleghany 1104 Comment
  JEPS100489  Carex luzulina var. ablata Lowell Ahart 2000-7-13 8585 Sierra an upper W branch of Black Jack Ravine, on W side of Forest Hwy 98, Harris Meadow, about 7 air mi NE of Alleghany 1615 Comment
  SEINET10467095  Carex lemmonii Lowell Ahart 1991-7-22 Ahart 6686 Sierra In French Meadow, near a small branch of Pass Creek, about 1/4 mile south of Henness Pass Road, about 3 miles northwest of Webber Lake. Mountain Meadow in Red Fir Forest. T19N R7E NW/S24. 2134 Comment
  SEINET10496795  Linanthus ciliatus Lowell Ahart, Peter Ahart 1983-10-27 Ahart 4481 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
  SEINET10927965  Carex nebrascensis Lowell Ahart 2001-8-10 Ahart 9069 Sierra T18N, R17E, northwest 1/4 Section 31. 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
  SEINET10964503  Castilleja tenuis Lowell Ahart 1991-7-22 Ahart 6680 Sierra In French Meadow, about 1/10 mile south of Henness Pass Road, about 3 miles northwest of Webber Lake. Mountain Meadow in Red Fir Forest. T19N R7E NW/S24. 2134 Comment
  SEINET11268223  Gilia capillaris Lowell Ahart 1993-9-24 7253 Sierra On the north side of Mount Fillmore, about 3/4 mile south of the dirt road from Gibsonville to Johnsville.; 0 2134 Comment
  SEINET13709862  Agrostis oregonensis Lowell William Ahart, Lowell William Ahart 2001-1 9086 Sierra Near Diversion Dam across Little Truckee River S of Fiberboard Rd. (Fsr 18), 5 Mi E of Webber Lake (T19N, R15E, sec 15, SW 1/4) 6300 Ft 1920 Comment
  CDA32665  Puccinellia distans L. Ahart, J. Dittes 2005-6-9 12002 Siskiyou 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. Comment
  CDA5862  Erigeron philadelphicus L. Ahart, J. Dittes 2005-6-1 12082 Siskiyou About 90 yards east 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
  CHSC106096  Sclerochloa dura Lowell Ahart; John Dittes 2010-7-30 16943 Siskiyou In the road tracks to the west edge of the Shasta River, about 30 yards south 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
  CHSC91223  Hordeum depressum Lowell Ahart; John Dittes 2005-6-9 12042 Siskiyou North margin of a meadow area along a small drainage, on the west side of a poor rock fence, about 200 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
  CHSC91245  Sonchus asper subsp. asper Lowell Ahart; John Dittes 2005-6-10 12117 Siskiyou At 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
  CHSC91255  Aegilops cylindrica Lowell Ahart; John Dittes 2005-6-10 12122 Siskiyou North side of the corral, end of Salvadori Road, Nelson Ranch, about 1 1/4 miles (air) south of Highway 99/97 Cutoff, about 5 1/4 miles (air) east-southeast of Grenada. 785 Comment
  CHSC91338  Vulpia myuros var. hirsuta Lowell Ahart; John Dittes 2005-6-9 12012 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
  CHSC91370  Lemna minuta Lowell Ahart; John Dittes 2005-6-10 12110 Siskiyou At intake pipe, at 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
  CHSC91383  Erodium cicutarium Lowell Ahart; John Dittes 2005-6-10 12058 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 Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  CHSC93524  Acmispon denticulatus Lowell Ahart; John Dittes 2005-6-9 12008 Siskiyou Open 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
  JEPS107315  Plantago lanceolata Lowell Ahart, John Dittes 2005-6-10 12118 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 Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 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
  JEPS107475  Achnatherum thurberianum Lowell Ahart, John Dittes 2005-6-9 12018 Siskiyou Small low hill, pasture field, on the east side of a poor rock fence, about 350 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
  JEPS107648  Sisyrinchium bellum Lowell Ahart, John Dittes 2005-6-10 12102 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
  JEPS107829  Carex praegracilis Lowell Ahart, John Dittes 2005-6-10 12094 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
  JEPS107919  Nitrophila occidentalis Lowell Ahart, John Dittes 2005-6-9 12005 Siskiyou Meadow area along a small drainage, 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
  JEPS117619  Lemna gibba Lowell Ahart, John Dittes 2010-7-30 16959 Siskiyou On the shallow calm water, along the south edge of the Shasta River, about 100 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) sou 716 Comment
  RSA715930  Medicago lupulina L. Ahart, John Dittes 2005-6-10 12063 Siskiyou About 80 yards north 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. 777 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
  RSA716056  Penstemon deustus var. suffrutescens L. Ahart 2005-6-9 12037 Siskiyou About 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 775 Comment
  SBBG125479  Carex praegracilis L. Ahart, J. Dittes 2010-7-30 16953 Siskiyou grassy meadow ca. 30 yards W of the Shasta River, ca. 50 yards W of the E Louie Rd Bridge, Shasta Big Springs Ranch, 1.6 mi SW of Big Springs Lake, 4.6 mi NW of Dwinnel Dam 5.7 mi SE of Grenada 716 Comment
  CHSC32081  Salicornia virginica L. Ahart 1976-8-14 1191 Solano In equipment storage area on dry soil, F.P. Smith Equipment Cp., Suisun. 7 Comment
  JEPS121157  Bromus pseudolaevipes Lowell Ahart, John Dittes, Josephine Guardino, Dr. Marge Anthony 2013-4-25 18587 Sonoma 0.7 air miles E of Pacific Ocean, 0.8 air miles W of Gualala River. Comment
  JEPS121161  Morella californica Lowell Ahart, John Dittes, Josephine Guardino, Dr. Marge Anthony 2013-4-25 18601 Sonoma 0.7 air miles E of Pacific Ocean, 0.8 air miles W of Gualala River. Comment
  CAS-BOT-BC138428  Aira caryophyllea Lowell Ahart 1985-5-5 4901 Sutter East of the road, about 2 miles north of Sutter, about 2 miles southeast of the Dean Cabin, Sutter Buttes. 100 Comment
  CAS-BOT-BC145716  Avena fatua Lowell Ahart 1981-5-18 2814 Sutter Sierra Nevada. Along edge of a small stream on the south side of the South Butte, Sutter Buttes. 100 Comment
  CAS-BOT-BC145728  Avena sativa Lowell Ahart 1983-5-14 4010 Sutter Sierra Nevada. Near the Sacramento Outing Club. West Butte Road, ca. 1/8 mile south of Club. 50 Comment
  CAS-BOT-BC148053  Ptelea crenulata Lowell Ahart 1985-5-20 5023 Sutter South of the lower radio tower, north of the road, on the south side of the South Butte, Sutter Buttes 600 Comment
  CAS-BOT-BC205077  Lathyrus sulphureus Lowell Ahart 1983-5-7 4376 Sutter Dean Ranch, Sutter Buttes 250 Comment
  CAS-BOT-BC237421  Polypogon monspeliensis Lowell Ahart 1984-5-21 4614 Sutter At the old homestead on the S side of the South Butte, Sutter Buttes 400 Comment
  CAS-BOT-BC262572  Melica torreyana Lowell Ahart 1986-5-26 5316 Sutter 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
  CAS-BOT-BC280379  Cirsium occidentale var. venustum Lowell Ahart 1977-5-19 s.n. Sutter South Butte, Sutter Buttes 300 Comment
  CAS-BOT-BC288919  Conyza canadensis Lowell Ahart 1984-9-22 4798 Sutter On the W side of the South Butte, Sutter Buttes 250 Comment
  CAS-BOT-BC348277  Matricaria occidentalis Lowell Ahart 1983-5-4 3938 Sutter Along the edge of Pass Road, about 4 miles west of Kellogg Road, Sutter Buttes 50 Comment
  CAS-BOT-BC361908  Psilocarphus tenellus Lowell Ahart 1984-4-19 4550 Sutter Along West Butte road, about 1/8 mile north of the Sacramento Outing Club, Sutter Buttes 35 Comment
  CAS-BOT-BC402931  Eschscholzia californica Lowell Ahart 1977-4-5 s.n. Sutter On south side of South Butte, Sutter Buttes 300 Comment
  CAS-BOT-BC416366  Rumex californicus Lowell Ahart 1984-5-21 4619 Sutter At the old homestead on the south side of the South Butte, Sutter Buttes 400 Comment
  CAS-BOT-BC428739  Micranthes californica Lowell Ahart 1977-4-7 s.n. Sutter Myers Ranch, Sutter Buttes. 50 Comment
  CAS-BOT-BC57243  Equisetum laevigatum Lowell Ahart 1983-9-4 4382 Sutter about 1/4 mile below the dam, about 3/8 mile south-east of the Dean Cabin, Dean Ranch, Sutter Buttes 250 Comment
  CAS-BOT-BC57745  Isoetes nuttallii Lowell Ahart 1984-3-24 4511 Sutter about 1/4 mile west of the Myers home, Myers Ranch, Sutter Buttes 50 Comment
  CAS-BOT-BC66852  Thysanocarpus curvipes Lowell Ahart 1977-4-7 s.n. Sutter Myers Ranch, Sutter Buttes. 50 Comment
  CHSC30025  Chorizanthe membranacea Lowell Ahart 1980-5-1 2144 Sutter Sutter Buttes, on the south side of the South Butte, above the spring. 400 Comment
  CHSC36265  Amsinckia menziesii L. Ahart 1982-4-24 3358 Sutter In a grassy area near the dirt road that leads to the gravel pit, ca. 1/4 mi sw of Meyers home, Meyers Ranch, Sutter Buttes. 50 Comment
  CHSC37043  Chamaesyce ocellata L. Ahart 1982-9-9 3785 Sutter Wash ca. 1/2 mi s of Myers home, Myers Ranch, Sutter Buttes. 50 Comment
  CHSC37053  Epilobium brachycarpum L. Ahart 1982-10-11 3879 Sutter Along Pass Rd, near bridge, and a little e of the Gas Compression Station, Sutter Buttes. 50 Comment
  CHSC37166  Sambucus mexicana L. Ahart 1982-6-19 3609 Sutter S of Myers home, Myers Ranch, Sutter Buttes. Comment
  CHSC37236  Gastridium phleoides L. Ahart 1982-5-30 3471 Sutter On and along cow trails ca. 1/4 mi w of Myers home, Myers Ranch, 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
  CHSC37241  Navarretia intertexta L. Ahart 1982-5-30 3453 Sutter Ca. 1/8 mi w of Myers home, Myers Ranch, Sutter Buttes. 50 Comment
  CHSC37251  Rumex salicifolius var. denticulatus L. Ahart 1982-5-30 3515 Sutter On dry gravelly bottom of a small wash, near s fence line, ca. 3/4 mi s 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
  CHSC37325  Sidalcea hartwegii L. Ahart 1982-5-30 3493 Sutter Ca. 1/2 mi w of Myers home, Myers Ranch, Sutter Buttes. 50 Comment
  CHSC37330  Cyperus eragrostis L. Ahart 1982-6-19 3597 Sutter Bottom of a small wash, ca. 3/4 mi s of Myers home, Myers Ranch, Sutter Buttes. 50 Comment
  CHSC39602  Plagiobothrys stipitatus var. micranthus Lowell Ahart 1983-5-14 3992 Sutter Found along West Butte Road, about 1/8 mile north of the Sacramento Outing Club, Sutter Buttes. 35 Comment
  CHSC39653  Psilocarphus brevissimus var. brevissimus Lowell Ahart 1983-5-14 3998 Sutter Along West Butte Road, about 1/8 mile north of the Sacramento Outing Club, Sutter Buttes. 35 Comment
  CHSC40260  Downingia bicornuta Lowell Ahart 1985-5-5 4893 Sutter On the bottom of a vernal pool, near the first gate to the Dean Ranch, about 1/4 mile north of Mallott Road, about 2 miles north-east of Sutter, Sutter Buttes. 35 Comment
  CHSC40291  Gastridium phleoides Lowell Ahart 1985-5-5 4912 Sutter North of the road, about 3/4 mile south-east of the Dean Cabin, Dean Ranch, about 3 1/2 miles north-west of Sutter, Sutter Buttes. 200 Comment
  CHSC40317  Clematis lasiantha Lowell Ahart 1985-5-5 4923 Sutter Near the west fence, south of Huff Canyon, about 3/4 mile west of the Dean Cabin, Dean Ranch, Sutter Buttes. 250 Comment
  CHSC40644  Elymus glaucus Lowell Ahart 1985-10-19 5212 Sutter On the north side of Little North Butte, about 1/2 mile north of the Dean Cabin, Dean Ranch, Sutter Buttes. 320 Comment
  CHSC41384  Heliotropium europaeum Lowell Ahart 1986-5-4 5259 Sutter Along the edge of the dirt road, a little west of 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
  CHSC41389  Spergula arvensis subsp. arvensis Lowell Ahart 1986-5-24 5305 a Sutter In one of the farmed fields, north of the Dean Cabin, Dean Ranch, about 3 1/2 miles north-west of Sutter, Sutter Buttes. 213 Comment
  CHSC41408  Madia exigua Lowell Ahart 1986-5-24 5287 Sutter Near the road and near the fifth gate to the Dean Ranch, about 3 1/2 miles north of Sutter, Sutter Buttes. 213 Comment
  CHSC42395  Juniperus californica Lowell Ahart 1977-4-5 1244 Sutter On the south side of the South Butte, Sutter Buttes. 182 Comment
  CHSC42740  Tropidocarpum gracile Lowell Ahart 1977-4-5 1240 Sutter On the south side of the South Butte, Sutter Buttes. 182 Comment
  CHSC43336  Euphorbia spathulata Lowell Ahart 1977-4-7 1266 Sutter On the Myers Ranch, Sutter Buttes. 45 Comment
  CHSC43337  Chamaesyce ocellata Lowell Ahart 1977-7-24 1483 Sutter Near the old gas well, on the south side of the South Butte, Sutter Buttes. 91 Comment
  CHSC44545  Bromus madritensis subsp. madritensis Lowell Ahart 1977-5-19 1372 Sutter On the south side of the South Butte, Sutter Buttes. 137 Comment
  CHSC45416  Clematis lasiantha Lowell Ahart 1977-4-7 1271 Sutter About 1 mile south of the Myers home, Myers Ranch, Sutter Buttes. 45 Comment
  CHSC45422  Myosurus minimus Lowell Ahart 1984-4-19 4547 Sutter Along the east side of West Butte Road, about 1/8 mile north of the Sacramento Outing Club, Sutter Buttes. 30 Comment
  CHSC46908  Baccharis salicifolia Lowell Ahart 1984-5-21 4616 Sutter At the old homestead on the south side of the South Butte, Sutter Buttes. 365 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
  CHSC46972  Stephanomeria virgata subsp. pleurocarpa Lowell Ahart 1984-10-22 4826 Sutter Near the small stream, south of the old homestead, on the south side of the South Butte, Sutter Buttes. 274 Comment
  CHSC47493  Keckiella breviflora var. glabrisepala Lowell Ahart 1980-6-21 2426 Sutter On the south side of the South Butte, Sutter Buttes. 335 Comment
  CHSC47649  Vulpia microstachys var. ciliata Lowell Ahart 1981-4-29 2793 Sutter Near the Dean Cabin, Dean Ranch, Sutter Buttes. 335 Comment
  CHSC87336  Koeleria macrantha Lowell Ahart 2004-5-2 10861 Sutter Mountaintop, on the south side of the road just west of the lower tower, near the top of the South Butte, Sutter Buttes, about 5 miles (air) northwest of Sutter. 431 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
  CHSC87918  Bromus laevipes Lowell Ahart 2004-5-29 10982 Sutter On a steep (cliffs) slope, where the fence ends, on the northwest side of the South Butte, Sutter Buttes, about 5 miles (air) northwest of Sutter. 537 Comment
  CHSC87934  Delphinium hansenii subsp. hansenii Lowell Ahart 2004-5-29 10967 Sutter About 30 yards south of the fence on the northwest side of the South Butte, Sutter Buttes, about 5 miles (air) northwest of Sutter. 384 Comment
  CHSC90997  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
  HSC96905  Chorizanthe membranacea L. Ahart 2004-5-2 10850 Sutter W side of S Butte, Sutter Buttes, 5 mi. (air) NW of Sutter 552 Comment
  HSC96919  Lotus strigosus L. Ahart 2004-5-2 10855 Sutter Sutter Buttes about 5 mi. NW of Sutter. Near the top of the