Search Results — 2000 specimen records retrieved (1820 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC102077  Bidens frondosa Lowell Ahart 1974-9-30 s.n. Butte Peter Ahart Ranch, Honcut Comment
  CAS-BOT-BC127364  Agrostis exarata Lowell Ahart 1987-7-8 5799 Butte Along Big Bar Mountain Road, about 3 miles southwest of Coyote Gap, southeast of Pulga. 1280 Comment
  CAS-BOT-BC127368  Agrostis exarata Lowell Ahart 1982-5-28 3440 Butte Sierra Nevada. East of North Honcut Creek near the Peter Ahart Ranch, ca. 1.5 mile north and 3 miles east of Honcut. 50 Comment
  CAS-BOT-BC132076  Allium peninsulare var. peninsulare Lowell Ahart 1989-5-10 6210 Butte Near a dirt road, about 1/10 mile north-west of the West Branch Bridge across Lake Oroville 304 Comment
  CAS-BOT-BC138036  Alopecurus carolinianus Lowell Ahart 1977-4-19 1523 Butte Peter Ahart Ranch, Honcut. Found growing in our grain fields. 50 Comment
  CAS-BOT-BC141248  Phoradendron serotinum subsp. tomentosum Lowell Ahart 1980-9-10 2624 Butte Little Bald Rock 335 Comment
  CAS-BOT-BC142956  Amelanchier utahensis Lowell Ahart; Vernon Oswald 1987-8-5 3193 Butte Scotts John Creek 1.3 mi n of the road connecting Humboldt and Humbug Roads 1813 Comment
  CAS-BOT-BC143358  Horkelia tridentata Lowell Ahart 1982-5-8 3413 Butte About 1/2 mile south-west of the Forbestown Res., about 4 1/2 miles north-east of Forbestown 800 Comment
  CAS-BOT-BC145539  Briza minor Lowell Ahart 1980-4-30 2133 Butte Along Swedes Flat Road, near Bangor. 320 Comment
  CAS-BOT-BC153575  Erythranthe floribunda Lowell Ahart 1987-7-3 5786 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  CAS-BOT-BC155461  Bromus hordeaceus Lowell Ahart 1982-6-4 3549 Butte Sierra Nevada. On a lava cap, ca. 1.5 mile east of Camp 18, ca. 8 miles east of Feather Falls. 1000 Comment
  CAS-BOT-BC158768  Rubus ursinus Lowell Ahart 1987-4-30 5489 Butte On the banks of North Honcut Creek, about 2 1/2 miles north and 3 miles east of Honcut, about 12 miles southeast of Oroville 67 Comment
  CAS-BOT-BC169940  Garrya fremontii Lowell Ahart 1985-1-27 4835 Butte East of Magalia, along the road 750 Comment
  CAS-BOT-BC181702  Eremogone kingii var. glabrescens Lowell Ahart 1986-7-2 5344 Butte About 2 miles north-east of Bald Mountain, south of Jones Meadow, about 6 1/2 miles north-east of Stirling City 1767 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-BC184708  Vulpia myuros subsp. megalura Lowell Ahart 1989-5-23 6264 Butte Along Swedes Flat Road, about 1 mile east of the Oroville Bangor Highway, north of Bangor 426 Comment
  CAS-BOT-BC184907  Chloris virgata Lowell Ahart 1987-7-19 5841 Butte Along the Midway, about 0.5 mile south of Durham. 48 Comment
  CAS-BOT-BC197097  Echinochloa crus-galli Lowell Ahart 1984-9-17 4791 Butte Peter Ahart Ranch, about 2 1/4 miles north and 1/4 mile east of Honcut, about 12 miles south of Oroville 50 Comment
  CAS-BOT-BC197102  Echinochloa crus-galli Lowell Ahart 1977-7-19 1547 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC198750  Vulpia bromoides Lowell Ahart 1980-4-19 2083 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC200498  Triticum aestivum Lowell Ahart 1979-5-12 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC213283  Lathyrus sulphureus Lowell Ahart 1980-4-21 2100 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC221230  Calystegia malacophylla subsp. malacophylla Lowell Ahart 1982-9-29 3832 Butte At the north end of the Lost Creek Res. Dam, about 2 miles north-west of Strawberry Valley 1100 Comment
  CAS-BOT-BC221939  Taeniatherum caput-medusae Lowell Ahart 1977-6-2 1504 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC226521  Leptosiphon acicularis Lowell Ahart 1990-4-7 6432 Butte About 3 miles north and 1 1/2 miles east of Honcut, about 10 miles south of Oroville 45 Comment
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Jul 19 2018
  CAS-BOT-BC226523  Leptosiphon acicularis Lowell Ahart 1982-5-3 3404 Butte Peter Ahart Ranch, about 1 1/2 miles north and 2 1/4 miles east of Honcut 50 Comment
Read comments
Jul 19 2018
  CAS-BOT-BC22965  Agoseris heterophylla Lowell Ahart 1980-5-4 2209 Butte Near Hurleton 600 Comment
  CAS-BOT-BC233208  Polypogon maritimus Lowell Ahart 1983-6-12 4052 Butte 7 miles SW of Feather Falls. Ca. 1 mile S of Crystal Hill, near Oregon Gulch, near Lake Oroville 425 Comment
  CAS-BOT-BC236369  Poa secunda subsp. secunda Lowell Ahart 1982-6-4 3552 Butte Ca. 1.5 miles E of Camp 18, ca. 8 miles E of Feather Falls 1000 Comment
  CAS-BOT-BC236372  Poa secunda subsp. secunda Lowell Ahart 1980-3-15 2043 Butte Near intersection of Pentz Road and 99E 50 Comment
  CAS-BOT-BC239831  Torreyochloa pallida var. pauciflora Lowell Ahart 1981-9-15 3172 Butte Along French Creek 1300 Comment
  CAS-BOT-BC24432  Arctostaphylos manzanita Lowell Ahart 1975-4-3 s.n. Butte Near Honcut. 76 Comment
  CAS-BOT-BC244398  Poa annua Lowell Ahart 1979-5-12 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  CAS-BOT-BC255067  Poa compressa Lowell Ahart 1988-6-29 6090 Butte E of Galen Ridge Road, about 0.5 mile E of the Oroville Quincy Highway, N of Lake Madrone 621 Comment
  CAS-BOT-BC258767  Paspalum urvillei Lowell Ahart 1983-6-12 4049 Butte About 1 mile south of Crystal Hill, near Oregon Gulch, near Lake Oroville, about 7 miles south-west of Feather Falls 425 Comment
  CAS-BOT-BC269076  Lolium perenne Lowell Ahart 1988-9-4 6175 Butte Along the north side of a branch of Last Chance Creek, east of the dirt road, about 1 mile west and a little north of Bald Mountain 1005 Comment
  CAS-BOT-BC269373  Melica californica Lowell Ahart 1987-5-9 5581 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
  CAS-BOT-BC271207  Lolium temulentum Lowell Ahart 1983-6-21 4068 Butte Along Bloomer Hill Road, ca. 0.5 mi. W of the Oroville Quincy Highway, ca. 15 mi. NE of Oroville Sec. 5 400 Comment
  CAS-BOT-BC271505  Centromadia parryi subsp. rudis Lowell Ahart 1983-9-19 1121 Butte 1/8 mile south of the Gray Lodge Waterfowl Management Area, 12 miles southwest of Gridley, Sutter Buttes Area 35 Comment
  CAS-BOT-BC274012  Leptochloa fusca subsp. uninervia Lowell Ahart 1986-11-14 5480 Butte About 1/10 mile south of the clay burrow for Oroville Dam, 1/4 mile east of Larkin Road, about 6 miles south-west of Oroville 36 Comment
  CAS-BOT-BC274353  Leersia oryzoides Lowell Ahart 1977-8-14 1543 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC274934  Muhlenbergia rigens Lowell Ahart 1977-2-20 s.n. Butte Peter Ahart Ranch, Honcut Comment
  CAS-BOT-BC28378  Carex gracilior Lowell Ahart 1982-5-28 3441 Butte Near North Honcut Creek, N of the Peter Ahart Ranch, ca 1.5 mi N and 3 mi E of Honcut. 50 Comment
  CAS-BOT-BC288038  Cirsium occidentale var. venustum Lowell Ahart 1983-6-21 4075 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-BC302476  Gnaphalium palustre Lowell Ahart 1986-11-9 5450 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-BC30746  Scirpus congdonii Lowell Ahart 1987-7-8 5813 Butte Along Walker Plains Road, about 1/8 mile north of coyote Gap, about 5 miles east of Pulga 1280 Comment
  CAS-BOT-BC32153  Carex multicaulis Lowell Ahart 1987-5-12 5642 Butte South of Lumpkin Ridge Road, 1.5 mi E of Camp 18, ca 8 mi NE 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-BC348698  Microseris acuminata Lowell Ahart 1979-4-28 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  CAS-BOT-BC349092  Microseris douglasii subsp. tenella Lowell Ahart 1985-4-29 4888 Butte Peter Ahart Ranch, about 2 miles north and 2 miles east of Honcut, about 12 miles south of Oroville 50 Comment
  CAS-BOT-BC37884  Cardamine oligosperma Lowell Ahart 1983-3-24 3910 Butte Sutter Buttes. East bank of Woodleaf Creek above road, about 0.375 mile southwest of the Forbestown Reservoir. 450 Comment
  CAS-BOT-BC38867  Arctostaphylos manzanita subsp. manzanita Lowell Ahart 1985-2-17 4839 Butte At Kunkle Res., about 2 miles south of Paradise. 550 Comment
  CAS-BOT-BC400424  Aristolochia californica Lowell Ahart 1980-3-8 2028 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC402963  Eschscholzia californica Lowell Ahart 1985-3-24 4860 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-BC427626  Crassula aquatica Lowell Ahart 1984-5-12 4604 Butte Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville 50 Comment
  CAS-BOT-BC435492  Lithophragma glabrum Lowell Ahart 1987-5-12 5646 Butte S of Lumpkin Ridge Road, 1 1/2 miles E of Camp 18, about 8 miles NE of Feather Falls 1280 Comment
  CAS-BOT-BC436859  Saxifraga Lowell Ahart 1975-3-3 s.n. Butte Peter Ahart Ranch, Honcut 45 Comment
  CAS-BOT-BC48283  Arctostaphylos viscida subsp. viscida Lowell Ahart 1975-3-27 s.n. Butte Swedes Flat road, near Bangor. 304 Comment
  CAS-BOT-BC50824  Ceanothus integerrimus Lowell Ahart 1987-5-6 5535 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  CAS-BOT-BC62116  Selaginella hansenii Lowell Ahart 1968-3-13 s.n. Butte Peter Ahart Ranch, Honcut 45 Comment
  CAS-BOT-BC66361  Cheilanthes covillei Lowell Ahart 1983-5-28 4024 Butte about 1/4 south of the over-look to Feather Falls, about 5 1/4 miles north of the town of Feather Falls 600 Comment
  CAS-BOT-BC67811  Marsilea vestita Lowell Ahart 1983-7-10 4191 Butte About 1/2 mile north-east of teh intersection of Highway 99 and Pentz Road, about 13 miles north of Oroville. 65 Comment
  CAS-BOT-BC68047  Cystopteris fragilis Lowell Ahart 1987-5-22 5658 Butte About 1/4 mile south 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-BC71182  Ophioglossum californicum Lowell Ahart 1984-2-18 4496 Butte On the Joie Osgood Ranch, about 4 miles northeast of Honcut 85 Comment
  CAS-BOT-BC76652  Polystichum munitum Lowell Ahart 1980-9-10 2633 Butte Sierra Nevada - 1 mile north-east of Milsap Bar. 900 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-BC8794  Delphinium gracilentum Lowell Ahart 1980-5-29 2356 Butte 5 miles north-east of Mountain House 1100 Comment
  CAS-BOT-BC90284  Artemisia douglasiana Lowell Ahart 1987-7-3 5760 Butte along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 890 Comment
  CAS-BOT-BC90920  Calycanthus occidentalis Lowell Ahart 1981-7-7 2920 Butte About 0.5 mile west of the Oroville Forbestown Road on the Black Bart Road, west of Forbestown. 700 Comment
  CDA30204  Cephalanthus occidentalis var. californicus L. Ahart 2009-7-9 16019 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 Highway 32, about 10 miles northeast of Chico. 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
  CDA31779  Eragrostis pectinacea L. Ahart 2002-9-7 9927 Butte East side of Cherokee Road, north of the Thermalito Diversion Canal, on the west side of the water purification pond, about 1 mi. north of Oroville. Comment
  CDA31936  Lychnis coronaria L. Ahart 2009-6-13 14826 Butte Banks of Oregon Gulch, bottom of an old gold mined area, about 400 yards southwest of the cemetery, about 10 air miles northeast of Oroville. Comment
  CDA31991  Dittrichia graveolens L. Ahart 2007-11-3 14577 Butte On the west side of Highway 70, about 100 yards north of Nelson Avenue, Thermalito. Comment
  CDA32001  Convolvulus arvensis L. Ahart 2009-5-3 15787 Butte About 50 yards south of the fence and about 100 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. Comment
  CDA3282  Amaranthus retroflexus L. Ahart 2006-9-28 13365 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. Comment
  CDA34159  Yabea microcarpa L. Ahart 2009-4-22 15567 Butte West side of Guardian s Trail, about 100 yards north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road. Approximately, 10 miles northeast of Chico. Comment
  CDA34180  Poa bulbosa L. Ahart 2009-4-22 15598 Butte South side of Guardian s Trail, about 50 yards west of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road. Approximately, 10 miles northeast of Chico. 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
  CDA34632  Agrostis pallens L. Ahart 2009-6-19 15929 Butte About 30 yards south of the fence and about 100 yards east of Ten Mile House Road, Upper Bidwelll Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. Comment
  CDA34755  Centaurium tenuiflorum L. Ahart 2009-6-19 15943 Butte North of trail to pond and table, on the east side 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. Comment
  CDA38816  Duchesnea indica L. Ahart 2012-4-6 17819 Butte On the north side of Big Chico Creek, Bidwell Park, city of Chico. Comment
  CDA3988  Acacia dealbata L. Ahart 2003-4-3 10118 Butte On the west side of an irrigation ditch, on the east side of Upper Palermo Road, about 2 miles (air) northeast of Palermo. Comment
  CDA40267  Navarretia intertexta subsp. intertexta L. Ahart 2005-6-13 12147 Butte About 10 yards east of the intersection of Forbestown Road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown, about 12 miles (air) east of Oroville. Comment
  CDA41857  Penstemon laetus subsp. leptosepalus L. Ahart 2004-6-22 11122 Butte On the west side of Doe Mill Road, about 1 mile southeast of the bridge across Butte Creek, about 2 1/2 miles (air) southeast of Forest Ranch, about 5 miles (air) southwest of Stirling City. Comment
  CDA42340  Campanula prenanthoides L. Ahart 2004-7-11 11247 Butte On the southeast edge of Paradise Lake, about 3/4 mile northeast of the picnic area, about 1 mile northeast of Paradise Dam, about 4 miles (air) southwest of Stirling City. Comment
  CDA42873  Sonchus oleraceus L. Ahart 2012-5-14 18061 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
  CDA42896  Carduus pycnocephalus subsp. pycnocephalus L. 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. Comment
  CDA42901  Cerastium fontanum subsp. vulgare L. Ahart 2012-6-14 18192 Butte On the south side of the path, south of CARD Community Center, Lower Bidwell Park, Chico. Comment
  CDA42919  Setaria viridis L. Ahart 2012-8-1 18416 Butte On the northeast side of Bidwell Mansion, on the southwest side of the parking area, Bidwell Mansion, Chico. Comment
  CDA42938  Setaria pumila subsp. pumila L. Ahart 2012-10-2 18493 Butte Soil and gravel bar on the south side of Big Chico Creek, about 50 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CDA5621  Gnaphalium luteoalbum L. Ahart 2005-4-14 11713 Butte About 200 feet east of the railroad tracks, north of Spruce Street, Gridley. Comment
  CDA7374  Chamaemelum fuscatum L. Ahart 2004-4-1 10732 Butte On the north side of Highway 149, about 1 mile northwest of the intersection of Highway 149 and Highway 70, about 6 miles (air) northwest of Oroville. Comment
  CHSC100484  Phytolacca americana Lowell Ahart; John Dittes, Josephine Guardino 2008-11-8 15435 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
  CHSC100493  Quercus lobata Lowell Ahart; John Dittes 2008-11-14 15450 Butte In the east part of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  CHSC100522  Erigeron sumatrensis Lowell Ahart 2008-11-4 15397 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. 263 Comment
  CHSC101081  Nemophila pedunculata Lowell Ahart; John Dittes 2009-3-20 15499 Butte Open area along the 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
  CHSC101092  Micranthes integrifolia Lowell Ahart; John Dittes 2009-3-20 15510 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
  CHSC101149  Trifolium ciliolatum Lowell Ahart 2009-5-15 15684 Butte East side of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west Highway 32, about 10 miles northeast of Chico. 235 Comment
  CHSC101256  Amsinckia intermedia Lowell Ahart 2009-4-17 15545 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
  CHSC101280  Euphorbia peplus Lowell Ahart 2009-4-3 15532 Butte Along the north margin of the gravel road, east of the Cedar Grove parking area in Lower Bidwell Park, Chico. 67 Comment
  CHSC101303  Vulpia microstachys var. microstachys Lowell Ahart 2009-4-22 15600 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
  CHSC101311  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
  CHSC101667  Bromus hordeaceus Lowell Ahart 2009-4-26 15638 Butte On the west side of Guardians Trail, just south of Pine Trail, Upper Bidwell Park, about 3/8 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  CHSC101679  Torilis arvensis subsp. purpurea Lowell Ahart 2009-5-8 15653 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
  CHSC101683  Trifolium oliganthum Lowell 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 east of the end of the Chico Canyon Road, Upper Bidwell Park, Chico. 68 Comment
  CHSC101694  Eschscholzia californica subsp. californica Lowell Ahart 2009-4-26 15622 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 northeast of Chico. 286 Comment
  CHSC101743  Fraxinus latifolia Lowell Ahart 2009-5-23 15749 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
  CHSC101751  Polystichum californicum Lowell Ahart 2009-5-23 15741 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
  CHSC101768  Melica californica Lowell Ahart 2009-5-15 15696 Butte Upper Bidwell Park, on the douth side of Ten Mile House Road, about 100 yards west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 461 Comment
  CHSC101800  Bromus hordeaceus Lowell Ahart 2009-5-8 15668 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
  CHSC101839  Sanicula bipinnatifida var. flava Lowell Ahart 2009-5-23 15751 Butte About 10 miles northeast of Chico, about 1/2 mile (air) southwest of the interection of Highway 32 and Ten Mile House Road, on north side of Ten Mile House Road. 311 Comment
  CHSC102177  Elytrigia pontica subsp. pontica Lowell Ahart 2009-8-23 16299 Butte On dry soil, about 100 yards south of the GPS reading, on the east side of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) west of Highway 32, about 10 miles northeast of Chico. 269 Comment
  CHSC102408  Leontodon taraxacoides subsp. longirostris Lowell Ahart 2009-6-19 15945 Butte On dry soil, on the south 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. 379 Comment
  CHSC102627  Melissa officinalis Lowell Ahart 2009-7-9 16014 Butte On the east edge of big Chico Creek, about 15 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. 181 Comment
  CHSC102711  Juglans californica var. hindsii Lowell Ahart 2009-7-3 15988 Butte 10 yards south of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove parking area, Lower Bidwell park, Chico. 67 Comment
  CHSC102819  Setaria viridis Lowell Ahart 2009-6-3 15994 Butte In the native plant garden, 40 yards south of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 100 yards southeast of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  CHSC102820  Poa palustris Lowell Ahart 2009-6-3 15815 Butte About 100 yards west of the table at the hold homestead and southwest of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 239 Comment
  CHSC102840  Carex praegracilis Lowell Ahart 2009-6-3 15824 Butte On the east side of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 236 Comment
  CHSC102961  Rumex stenophyllus Lowell Ahart 2009-7-4 15996 Butte On the sides of the road, near parking lot 18, Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley. 19 Comment
  CHSC102985  Chenopodium strictum var. glaucophyllum Lowell Ahart 2009-8-13 16281 Butte At the south end of the cement barrier that controls the waster flow into Mud Creek, the north part of the diversion structure that controls Mud Creek diversion and Lindo Channel, northeast of Hooker Oak, Upper Bidwell Park, Chico. 68 Comment
  CHSC102999  Rumex conglomeratus Lowell Ahart 2009-6-3 15820 Butte Drainage below dam, about 100 yards west of the table at the old homestead and about 50 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) southwest of the intersection of Highway 32 and Ten Mile House road, about 10 miles northeast of Chico. 232 Comment
  CHSC103016  Azolla microphylla Lowell Ahart 2009-10-8 16412 Butte In a deep large ditch, on the east side of the road, about 20 yards east of Parking Lot 13, Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley. 19 Comment
  CHSC103168  Rosa californica Lowell Ahart 2009-11-19 16542 Butte About 30 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. 209 Comment
  CHSC103662  Draba verna var. verna Lowell Ahart 2010-2-13 16565 Butte Parking area, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 33 Comment
  CHSC103666  Minuartia cismontana Lowell Ahart 2010-4-30 16602 Butte Open are along a ridge, on both sides 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
  CHSC103695  Polygonum bidwelliae Lowell Ahart 2010-5-14 16642 Butte On the bottom 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
  CHSC103710  Psilocarphus oregonus Lowell Ahart 2010-5-22 16721 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. 387 Comment
  CHSC103729  Pterostegia drymarioides Lowell Ahart 2010-5-16 16697 Butte About 1/2 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 364 Comment
  CHSC103939  Psilocarphus tenellus var. globiferus Lowell Ahart 2010-5-22 16722 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
  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
  CHSC103998  Centaurea melitensis Lowell Ahart 2010-6-20 16835 Butte About 3/8 mile north of Cox Lane, about 1 1/2 miles east of Palermo Honcut Highway, Guidci Ranch, about 7 1/2 miles (air) southeast of Oroville. 55 Comment
  CHSC104803  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2010-6-9 16786 Butte On Damp to wet dark soil, bottom of a small drainage, open grassy pasture 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
  CHSC104828  Lomatium dissectum var. multifidum Lowell Ahart 2010-5-7 16632 Butte On the south side of Guardian Trail, about 1/4 mile west of Highway 32, Upper Bidwell Park, about 4 3/4 miles (air) east of Chico. 301 Comment
  CHSC104848  Danthonia californica var. americana Lowell Ahart 2010-6-12 16798 Butte On the west side of a small drainage, on the east side of Ten Mile House Road, about 3/4mile (air) west of Highway 32, about 9 miles (air) northeast of Chico. 265 Comment
  CHSC105265  Polypogon maritimus Lowell Ahart 2010-6-20 16831 Butte About 1/4 mile north of Cox Lane, about 1 1/2 miles east of Palermo Honcut Highway, Guidci Ranch, about 7 1/2 miles (air) southeast of Oroville. 59 Comment
  CHSC105512  Calyptridium monospermum Lowell Ahart 2010-9-28 17251 Butte On damp black soil, about 20 yards west 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
  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
  CHSC105791  Equisetum hyemale subsp. affine Lowell Ahart 2010-9-13 17151 Butte Edge of ponds, Oroville Wildlife Area, about 1/2 mile west of Pacific Heights Road, about 3 1/2 miles (air) northwest of Palermo. 31 Comment
  CHSC105801  Botrychium simplex var. compositum Lowell Ahart 2010-9-28 17242 Butte On the south edge of a 10 acre meadow, about 100 yards east of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1886 Comment
  CHSC105813  Senecio triangularis Lowell Ahart 2010-9-21 17206 Butte Open meadow like area in red fir forest, about 70 yards east of the poor dirt road, about 80 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1917 Comment
  CHSC106060  Cotinus coggygria Lowell Ahart; Susan Mason, Josephine Guardino 2010-8-6 17044 Butte In landscaping, at Five Mile Recreation Area, Bidwell Park, Chico. 74 Comment
  CHSC10624  Anthemis cotula Lowell Ahart 1972-5-24 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC106865  Leptosiphon filipes Lowell Ahart 2011-4-28 17332 Butte Along trail in the Disc Golf Area, about 130 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. 398 Comment
  CHSC106881  Trifolium campestre Lowell Ahart 2011-5-1 17341 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
  CHSC10741  Athysanus pusillus Lowell Ahart 1967-3-30 Butte Peter Ahart Ranch, Honcut. 42 Comment
  CHSC107565  Epilobium ciliatum subsp. ciliatum Lowell Ahart 2011-8-17 17621 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. 209 Comment
  CHSC107581  Cuscuta pentagona Lowell Ahart 2011-8-17 17627 Butte About 10 yards north of the trail, north of the crossing and on the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 203 Comment
  CHSC107596  Heuchera micrantha var. erubescens Lowell Ahart 2011-7-9 17578 Butte Northwest part 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. 967 Comment
  CHSC10792  Lewisia rediviva Lowell Ahart 1968-3-17 Butte Table Mountain, Oroville. 243 Comment
  CHSC108135  Echinochloa crus-galli Lowell Ahart 2011-10-29 17727 Butte On the bare sides of a ditch, on the south side of Biggs Princeton Road, about 500 yards west of Riceton Highway, about 1 mile northwest of Biggs. 27 Comment
  CHSC10820  Sidalcea diploscypha Lowell Ahart 1972-5-20 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC10826  Erythronium multiscapideum Lowell Ahart 1970-3-18 Butte Swede's Flat Road, near Bangor. 121 Comment
  CHSC108314  Schoenoplectus acutus var. occidentalis Lowell Ahart 2011-8-17 17632 Butte On the west edge of the pond, on the east side of the trail and dam, at the old homestead, about 100 yards south of Ten Mile House Road, about 5/8 mile (air) west of Highway 32, about 9 miles (air) northeast of Chico. 249 Comment
  CHSC108837  Salix exigua var. hindsiana Lowell Ahart 2012-4-17 17884 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
  CHSC108845  Salix lasiolepis Lowell Ahart 2012-3-9 17773 -A Butte On a gravel bar, middle of North Honcut Creek, 30 yards east of the floodgate, Peter Ahart Ranch, about 1 mile north and 2 1/2 miles east of Honcut, about 12 miles southeast of Oroville. 39 Comment
  CHSC108857  Athysanus pusillus Lowell Ahart 2012-2-22 17748 Butte On the west side of South Rim Trail, about 1/4 mile southwest of the pond, about 5/8 mile west of Highway 32, about 8 3/4 miles (air) northeast of Chico. 254 Comment
  CHSC108956  Prunus cerasifera Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17853 Butte Just east of the Deer Pen, near Table 10, Lower Bidwell Park, Chico. 65 Comment
  CHSC108980  Festuca bromoides Lowell Ahart; Linnea Hanson, Kaline Le Coq, Josephine Guardino 2012-4-27 17906 Butte On the north side of the path, near the sign, southwest of the intersection of Vallombrosa Avenue and Manzanita Avenue, Lower Bidwell Park, Chico. 80 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
  CHSC109114  Plagiobothrys scriptus Lowell Ahart 2012-3-23 17798 Butte Botttom of a small path, 90 feet north of a large Gray Pine, north end of the Disc Golf Area, about 50 yads west of Highway 32, about 5 miles (air0 northeast of Chico. 395 Comment
  CHSC109166  Carex nudata Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18010 Butte On the north side of Big Chico Creek, on the south side 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. 76 Comment
  CHSC109599  Centaurium tenuiflorum Lowell Ahart; Susan Bazell, Josephine Guardino 2012-5-31 18123 Butte On the south side of the paved park road (Peterson Drive) about 100 yards west of the gate, lower Bidwell Park, Chico. 76 Comment
  CHSC109608  Zeltnera venusta Lowell Ahart 2012-5-20 18097 Butte On the south side of Humboldt Trail, about 100 yards east of the Guardian Trail, southeast part of Upper bidwell Park, northeast of Chico. 370 Comment
  CHSC109631  Cynosurus echinatus Lowell Ahart 2012-5-14 18067 Butte On the south side of the paved road, west of the horse trail, about 1/2 mile west of Peterson Drive, south of Vallombrosa Ave, Lower Bidwell Park, Chico. 74 Comment
  CHSC109651  Gastridium phleoides Lowell Ahart 2012-5-12 18036 Butte On the sides of Bloody Rim Trail, about 20 yards east of South Rim Trail, about 5/8 mile west of Highway 32, south part of Upper Bidwell Park, about 7-3/8 miles (air) northeast of Chico. 220 Comment
  CHSC109668  Mentha spicata Lowell Ahart 2012-6-28 18239 Butte On the north side of Big Chico Creek, east of Sycamore Pool, Lower Bidwell Park, Chico. 61 Comment
  CHSC109767  Verbena hastata Lowell Ahart 2012-10-28 18526 Butte About 50 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  CHSC109779  Cyperus fuscus Lowell Ahart 2012-10-20 18500 Butte About 50 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. 68 Comment
  CHSC109783  Brickellia californica Lowell Ahart 2012-10-20 18496 Butte About 50 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. 68 Comment
  CHSC110396  Muhlenbergia mexicana Lowell Ahart 2012-9-28 18471 Butte Gravel bar in the middle of Big Chico Creek, about 30 yards east of the freeway, Lower Bidwell Park, Chico. 65 Comment
  CHSC110405  Xanthium strumarium Lowell Ahart 2012-9-28 18467 Butte Gravel bar in the middle of Big Chico Creek, about 30 yards east of the Freeway, Lower Bidwell Park, Chico. 65 Comment
  CHSC11051  Samolus parviflorus Lowell Ahart 1969-9-9 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC11062  Ranunculus arvensis Lowell Ahart 1969-5-14 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC111127  Ficus carica Lowell Ahart 2012-6-21 18227 Butte On the south side of Big Chico Creek, about 20 yards west of the freeway, Lower Bidwell Park, Chico. 62 Comment
  CHSC111147  Plantago major Lowell Ahart 2012-6-14 18191 Butte On the south side of the path, south of CARD Community Center, Lower Bidwell Park, Chico. 62 Comment
  CHSC111362  Aphyllon purpureum Lowell Ahart 2012-5-4 17987 Butte On damp dark rocky soil, on and around basalt on a steep slope, about 200 feet south of stream in Beatson Hollow, about 1 1/4 mile northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 286 Comment
  CHSC111373  Geranium dissectum Lowell Ahart 2012-5-2 17968 Butte On dark clay soil, on the sides 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
  CHSC111389  Carex multicaulis Lowell Ahart 2012-4-30 17923 Butte Near a small drainage, north of the meadow, southwest of Ten Mile House Road, about 1/4 mile west of Highway 32, about 9 miles (air) northeast of Chico, south part of Upper Bidwell Park. 268 Comment
  CHSC111395  Celtis australis Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 17997 Butte On dry dark deep excellent soil, on the south side Vallombrosa Avenue, north side of the old walnut orchard, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. 76 Comment
  CHSC111406  Calocedrus decurrens Lowell Ahart; Susan Bazell, Josephine Guardino, Wes Dempsey 2012-7-5 18267 Butte Cedar Grove, south of parking area, Lower Bidwell Park, Chico. 71 Comment
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Aug 28 2018
  CHSC111726  Holcus lanatus Lowell Ahart 2012-6-14 18193 Butte Dry high bank on the north side of Big Chico Creek, about 30 yards east of Mangrove Avenue, Annie's Glen, Lower Bidwell Park, Chico. Uncommon. Riparian Woodland. 62 Comment
  CHSC111734  Juglans nigra Lowell Ahart 2012-6-21 18209 Butte On the south side of Big Chico Creek, about 250 yards east of the dam at Sycamore Pool, Lower Bidwell Park, Chico. 62 Comment
  CHSC111742  Sambucus nigra subsp. caerulea Lowell Ahart 2012-7-5 18280 Butte On the south side of Big Chico Creek, east of the Deer Pen, between Table 12 and 13, Lower Bidwell Park, Chico. 65 Comment
  CHSC112039  Lessingia nana Lowell Ahart 2012-8-22 18419 Butte On dry gravelly soil, old road to pond, on the south side of the paved road to the shooting range in the clay pit, about 1/4 mile east of Larkin Road, about a mile south of the Oroville Airport. 38 Comment
  CHSC112107  Verbascum blattaria Lowell Ahart 2012-6-2 18156 Butte 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
  CHSC112194  Veronica peregrina subsp. xalapensis Lowell Ahart 2013-4-20 18560 Butte In corral at the barn, about 1/4 mile north of the Honcut Cemetary, about 3 1/4 mile (air) northeast of Honcut. 47 Comment
  CHSC112201  Carduus pycnocephalus subsp. pycnocephalus Lowell Ahart 2013-4-20 18548 Butte On a dredge pile, in Wilson Creek, about 40 yards southwest of the oak trees, about 1/2 mile north of the barn, about 3/4 mile north of the Honcut Cemetary, about 3 3/4 miles (air) northeast of Honcut. 49 Comment
  CHSC112442  Luzula subsessilis Lowell Ahart 2013-5-18 18698 Butte About 100 yards east of the intersection of Forbestown Road and the Black Bart Road, about 3 1/4 miles (air) southwest of Forbestown. 763 Comment
  CHSC112446  Toxicoscordion venenosum var. venenosum Lowell Ahart; Susan Kephart, Jim Kephart 2013-6-1 18721 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
  CHSC112454  Navarretia intertexta subsp. intertexta Lowell Ahart 2013-5-23 18705 Butte About 1/2 mile southeast of the Honcut Cemetery, about 3 1/4 miles (air) northeast from Honcut. 54 Comment
  CHSC112706  Gnaphalium palustre Lowell Ahart 2013-10-26 19207 Butte On the south side of Philbrook Creek, below the high water line (strand) of Philbrook Reservoir. 1681 Comment
  CHSC113122  Epilobium ciliatum subsp. ciliatum Lowell Ahart 2013-11-17 19265 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
  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
  CHSC113146  Eleocharis radicans Lowell Ahart 2013-11-13 19238 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
  CHSC113154  Erythranthe guttata Lowell Ahart 2013-11-13 19249 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
  CHSC113239  Juncus leiospermus var. leiospermus Lowell Ahart 2014-4-20 19392 Butte About 1 1/8 miles northwest of the parking area on the west side of Cherokee Road, about 7 miles (air) north of Oroville. 350 Comment
  CHSC113307  Sinapis arvensis Lowell Ahart 2014-4-16 19376 Butte On the sides but near the bottom of a large canal, about 100 yards north of East Gridley Road, on the west side of the Feather River, about 2 miles east of Gridley. 29 Comment
  CHSC113367  Juncus bufonius var. bufonius Lowell Ahart 2014-4-9 19339 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
  CHSC113379  Senecio vulgaris Lowell Ahart 2014-4-9 19329 Butte Rice field road, near the pump, on the north side of Colusa Highway, about 4/10 mile east of the intersection of Pennington Road and Colusa Highway, about 5 1/2 miles west of Gridley. 22 Comment
  CHSC113383  Stellaria longipes subsp. longipes Lowell Ahart 2014-7-4 19555 A Butte On the south side of Bull Hill Road, about 2 miles south of Butte Meadows. 1341 Comment
  CHSC113394  Heterocodon rariflorum Lowell Ahart 2014-7-2 19547 Butte Depression on south side of the poor road, east of cow corral, about 200 yards north of the County Road, about one mile west of the intersection of County Road and Lumpkin Road, about 7 miles northeast of Feather Falls. 1281 Comment
  CHSC113407  Carex hirtissima Lowell Ahart 2014-7-13 19642 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
  CHSC113415  Carex fracta Lowell Ahart 2014-7-16 19678 Butte Northeast of a large wet meadow (some bog), about 50 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC113467  Ligusticum grayi Lowell Ahart 2014-7-13 19646 Butte Southwest edge of a large wet meadow (some bog), about 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC113518  Navarretia intertexta subsp. intertexta Lowell Ahart 2014-7-7 19597 Butte On the south side of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1664 Comment
  CHSC113533  Crypsis alopecuroides Lowell Ahart 2014-9-23 19873 Butte Near a small drainage, on the northeast part of Horseshoe Lake, about 100 yards northeast of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. 88 Comment
  CHSC113541  Eragrostis hypnoides Lowell Ahart 2014-9-23 19876 Butte Near a small drainage, on the northeast part of Horseshoe Lake, about 100 yards northeast of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. 88 Comment
  CHSC11356  Lewisia rediviva Lowell Ahart 1971-4-10 Butte Table Mountain, Oroville. 457 Comment
  CHSC113603  Polygonum aviculare subsp. aviculare Lowell Ahart 2014-8-24 19728 Butte On the south side of the road, about 50 yards west of Woodleaf Creek, about 1/2 mile southwest of the Forbestown Reservoir Dam, about 4 miles (air) northeast of Forbestown. 611 Comment
  CHSC113844  Erigeron petrophilus var. sierrensis Lowell Ahart 2014-8-24 19732 Butte On the south side of the road, about 50 yards west of Woodleaf Creek, about 1/2 mile southwest of the Forbestown Reservoir Dam, about 4 miles (air) northeast of Forbestown. 611 Comment
  CHSC113937  Carex abrupta Lowell Ahart 2014-8-13 19707 Butte 20 yards east of the east edge of a large wet meadow (some bog), about 130 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC113945  Chenopodium album Lowell Ahart 2014-8-13 19698 Butte About 10 yards east of the Skyway, about one-mile north of Stirling City. 1142 Comment
  CHSC113957  Carex angustata Lowell Ahart 2014-7-7 19579 Butte North of the bog, Coon Hollow, about 2 miles (air) north of Philbrook Reservoir. 1690 Comment
  CHSC113970  Oxalis corniculata Lowell Ahart 2014-11-24 19920 Butte About 10 feet below the high water line of Lake Oroville, about 500 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 252 Comment
  CHSC114979  Castilleja applegatei subsp. pinetorum Lowell Ahart 2015-4-13 20036 Butte On the southwest side of Rim Road, about 3 miles (air) north of Jarbo Gap, about 17-1/2 miles (air) north of Oroville. 907 Comment
  CHSC114983  Castilleja lacera Lowell Ahart 2015-4-18 20042 Butte On the east side of Swedes Flat Road, about 1/2 mile southwest of Dutch Ravine, about 8 miles (air) southeast of Oroville. 384 Comment
  CHSC115162  Trifolium variegatum var. variegatum Lowell Ahart 2015-6-6 20199 Butte Open pasture field, about 50 yards southeast of the old large parking area on North Table Mountain, about 7 miles (air) north of Oroville. 378 Comment
  CHSC115189  Agoseris retrorsa Lowell Ahart 2015-4-27 20090 Butte On the northside of the dirt road, about 5/8 mile northwest of the iron gate along Cherokee Road, Beatson Hollow, North Table Mountain, about 7 miles (air) of Oroville. 304 Comment
  CHSC115275  Keckiella breviflora var. glabrisepala Lowell Ahart 2015-5-5 20143 Butte On the south side of the gravel road, Oroville Wildlife Area, about one mile south of the Headquarters, about one mile south of Thermalito. Raparian Woodland (destroyed). 39 Comment
  CHSC115335  Elatine Lowell Ahart 2015-4-24 20069 Butte Normal size plants, on damp bare soil, bottom of a large duck field. 19 Comment
  CHSC115347  Tuberaria guttata Lowell Ahart 2015-4-18 20044 Butte On the east side of Swedes Flat Road, about 1/2 mile southwest of Dutch Ravine, about 8 miles (air) southeast of Oroville. 384 Comment
  CHSC115355  Ranunculus hebecarpus Lowell Ahart 2015-3-24 19963 Butte Cliffs, on the road cut on the south side of Pacific Heights Road, about 3 1/2 miles (air) southwest of Oroville. 47 Comment
  CHSC116109  Centaurea solstitialis Lowell Ahart 2015-10-9 20542 A 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
  CHSC116130  Rorippa curvisiliqua var. orientalis Lowell Ahart 2015-11-7 20630 Butte On the bottom of Grizzly Creek, flows into Dark Canyon, about 1/8 mile southwest of the parking area at the end of old highway Alternate 40, strand of Lake Oroville, about 4 miles (air) south of Highway 70, about 8 miles (air) southeast of Paradise. 231 Comment
  CHSC116150  Echinochloa crus-galli Lowell Ahart 2015-10-26 20602 Butte Strand of Lake Oroville, on west side of West Branch of Feather River, about 1mile (air) southeast of Kunckle Reservoir, about 5 miles (air) southeast of Paradise. 207 Comment
  CHSC116177  Antirrhinum vexillocalyculatum subsp. intermedium Lowell Ahart 2015-6-16 20243 Butte About 150 yards southeast of Lumpkin Ridge Road, about 2 miles east of the intersection of Lumpkin Ridge Road, County Road and road to Fall River, about 6 3/4 miles (air) northeast of Feather Falls. 1296 Comment
  CHSC116212  Malacothrix floccifera Lowell Ahart 2015-6-16 20241 Butte On the northwest side of the paved road, about 3 1/2 miles (by road) northwest of Fall River Bridge, about 5 miles (air) northwest of Camp 18, about 8 1/2 miles (air) northeast of Feather Falls. 1301 Comment
  CHSC116297  Xanthium strumarium Lowell Ahart 2015-11-7 20613 Butte Strand of Lake Oroville, on east side of old Highway Alternate 40, about 1/4 mile south of end of Alternate 40, Dark Canyon, about 4 miles (air) south of Highway 70, about 8 miles (air) southeast of Paradise. 236 Comment
  CHSC116308  Erythranthe guttata Lowell Ahart 2015-11-18 20662 Butte On the west side of the Feather River, about 1/2 mile south of Palm Avenue, about 1 1/2 miles southeast of the intersection of Palm Avenue and Larkin Road, about 5 miles (air) northeast of Gridley. 26 Comment
  CHSC116331  Polygonum aviculare Lowell Ahart 2015-10-20 20575 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
  CHSC116635  Moenchia erecta subsp. erecta Lowell Ahart 2016-4-15 20744 Butte On both sides of Swedes Flat road, about 1/2 mile southwest of Dutch Ravine, about 8 miles (air) southeast of Oroville. 384 Comment
  CHSC116647  Trifolium depauperatum var. depauperatum Lowell Ahart 2016-4-15 20747 Butte On the west sside of Swedes Flat Road, about 1/2 mile sdouthwest of Dutch Ravine, about 8 miles (air) southeast of Oroville. 384 Comment
  CHSC116703  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2016-5-14 20830 Butte About 100 yards north of the waterhole, Peter Ahart Ranch, about 1 3/4 miles north and 2 3/4 miles east of Honcut, about 11 miles (air) southeast of Oroville. 38 Comment
  CHSC116711  Plagiobothrys nothofulvus Lowell Ahart 2016-5-14 20829 Butte About 100 yards north of the waterhole, Peter Ahart Ranch, about1 3/4 miles northand 2 3/4 miles east of Honcut, about 11 miles (air) southeast of Oroville. 38 Comment
  CHSC116748  Gamochaeta ustulata Lowell Ahart 2016-5-24 20853 Butte About 50 yards north of the ditch, about 150 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. 44 Comment
  CHSC116985  Anagallis arvensis Lowell Ahart 2016-6-4 20937 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
  CHSC116999  Logfia gallica Lowell Ahart 2016-6-4 20922 Butte On the north side of Lumpkin Road, about 100 yards north of McCabe Creek, about 3 miles (air) west of Forbestown. 387 Comment
  CHSC117000  Acmispon brachycarpus Lowell Ahart 2016-6-4 20921 Butte On the north side of Lumpkin Road, about 100 yards north of McCabe Creek, about 3 miles (air) west of Forbestown. 387 Comment
  CHSC117422  Amaranthus albus Lowell Ahart 2016-5-30 20892 Butte North of Little Pump, Peter Ahart Ranch, about 2 1/2 miles north and 1/2 mile east of Honcut, about 12 miles (air) south of Oroville. 30 Comment
  CHSC117426  Epilobium torreyi Lowell Ahart 2016-5-30 29898 Butte West of Little Pump, Peter Ahart Ranch, about 2 1/2 miles north and 1/4 mile east of Honcut, about 12 miles (air) south of Oroville. 30 Comment
  CHSC117434  Cotula coronopifolia Lowell Ahart 2016-5-31 20903 Butte On the sides of a deep wash, about 1/8 mile east of Palermo Honcut Highway, Peter Ahart Ranch, about 2 1/4 miles north and 1/8 east of Honcut, about 12 miles (air) south of Oroville. 29 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
  CHSC117706  Lemna minuta Lowell Ahart 2016-9-4 21341 Butte Rice field. Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles (air) south of Oroville. 30 Comment
  CHSC12170  Epilobium minutum Lowell Ahart 1973-5-6 Butte Near Challenge. 762 Comment
  CHSC12176  Stellaria media Lowell Ahart 1973-3-7 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC12407  Aphanes occidentalis Lowell Ahart 1973-3-1 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC23869  Polycarpon tetraphyllum Lowell Ahart 1976-7-27 1147 Butte North Honcut Creek below the Peter Ahart Ranch. 45 Comment
  CHSC29981  Allium peninsulare Lowell Ahart 1980-5-25 2317 Butte Along Swedes Flat Road, ca 1 mi E of Bangor- -Oroville Highway, near Bangor. 320 Comment
  CHSC29999  Lomatium utriculatum L. Ahart 1980-4-21 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC30032  Delphinium gracilentum L. Ahart 1980-5-25 2337 Butte Near the intersection of Forbestown Rd and Ponderosa Way, near Old Forbestown. 1000 Comment
  CHSC30034  Barbarea orthoceras L. Ahart 1980-5-19 2314 Butte Along the edges of the South Fork of the Feather River, near bridge, ca. 1/8 mi n of the Golden Trout Crossing, ca. 5 mi w of the Sly Creek Dam. 800 Comment
  CHSC30042  Madia subspicata L. Ahart 1980-5-17 2306 Butte A little east of the Oak Grove Cemetary, ca. 1/2 mi se of Hurleton. 600 Comment
  CHSC30436  Juncus effusus subsp. pacificus L. Ahart 1980-7-29 2506 Butte Along edges of road in gutters. Lower Forbestown Rd (Ponderosa Way) ca 1/4 mi N of intersection with Robinson Mill Rd, W of Forbestown. 750 Comment
  CHSC30856  Polystichum imbricans L. Ahart 1980-9-10 2633 Butte Ca. 1 mi ne of Millsap Bar, ca. 25 mi ne of Oroville. 900 Comment
  CHSC31437  Ceanothus integerrimus var. californicus L. Ahart 1980-9-10 2645 Butte Along edge of rd ca. 7 mi e of Millsap Bar, ca. 32 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
  CHSC31522  Pentagramma pallida L. Ahart 1974-12-7 685 Butte Along North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31524  Allium amplectens L. Ahart 1975-5-12 763 Butte Along edge of North Honcut Creek, Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31607  Helenium puberulum L. Ahart 1975-7-5 848 Butte Along the edge of North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31613  Symphyotrichum subulatum var. parviflorum Lowell Ahart 1977-9-24 1589 Butte Along the edges of North Honcut Creek. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC31615  Blennosperma nanum Lowell Ahart 1975-4-2 739 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31639  Sisyrinchium bellum L. Ahart 1977-5-20 1385 Butte Along edge of a small wash. Peter Ahart Ranch, Honcut. 60 Comment
  CHSC31649  Brassica rapa L. Ahart 1978-3-11 1611 Butte In a field. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC31682  Bergia texana L. Ahart 1974-7-19 553 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31684  Isolepis cernua L. Ahart 1974-6-24 495 Butte Along edge of North Honcut Creek on wet soil, Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31700  Desmazeria rigida L. Ahart 1979-4-28 1852 Butte Along a wash near the old tunnel gold mine. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC31706  Bromus sterilis L. Ahart 1978-5-16 1733 Butte On the banks of North Honcut Creek. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC31761  Proboscidea lutea L. Ahart 1973-7-19 262 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31811  Lupinus polycarpus L. Ahart 1978-5-1 1686 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC31879  Trifolium ciliolatum L. Ahart 1974-4-24 441 Butte Along North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31908  Luzula macrantha L. Ahart 1975-3-18 709 Butte Along edge of North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC32110  Melissa officinalis L. Ahart 1977-7-18 1479 Butte Along edge of North Honcut Creek, 3 mi ne of Honcut. 60 Comment
  CHSC32116  Pentagramma triangularis subsp. semipallida L. Ahart 1976-7-7 1171 Butte Along edge of rd to Little North Fork of the Feather River, ca. 2 mi s of Junction House. 1219 Comment
  CHSC34052  Arrhenatherum elatius L. Ahart; M. S. Taylor 1981-8-15 3050 Butte Ca. 200 m w of the store at the e end of Philbrook Reservoir, ca. 10 mi ne of Inskip. 1500 Comment
  CHSC34054  Muhlenbergia richardsonis L. Ahart; M. S. Taylor 1981-8-15 3040 Butte On bottom of Snag Lake, ca. 10 mi n of Inskip. 1500 Comment
  CHSC34061  Eleocharis bella L. Ahart; M. S. Taylor 1981-8-15 3030 Butte On banks of the West Branch of the Feather River, ca. 1.5 mi s of Snag Lake, ca. 9 mi n of Inskip. 1500 Comment
  CHSC34125  Atriplex serenana L. Ahart 1981-9-10 3145 Butte Near the entrance to the Graylodge Waterfowl Mgmt HQ, w of Pennington Rd, ca. 12 mi sw of Gridley. 35 Comment
  CHSC34137  Cyperus strigosus L. Ahart 1981-9-19 3185 Butte Along edge of Feather River, ca. 100 m s of Arch Rock Tunnel on Hwy 70, ca. 10 mi s of Storrie. 550 Comment
  CHSC34147  Echinochloa crus-galli L. Ahart 1981-9-19 3180 Butte Along the edge of Hwy 70, just n of Arch Rock Tunnel, ca. 10 mi s of Storrie. 550 Comment
  CHSC36519  Horkelia tridentata L. Ahart 1982-5-8 3413 Butte On slope above the road, ca. 1/2 mi sw of the Forbestown Reservoir, ca. 4.5 mi ne of Forbestown. 800 Comment
  CHSC36535  Bromus tectorum L. Ahart 1982-6-4 3531 Butte 1.5 mi e of Camp 18, ca. 8 mi e of Feather Falls. 1000 Comment
  CHSC36543  Lupinus stiversii L. Ahart 1982-6-4 3547 Butte On a lava cap, 1.5 mi e of Camp 18, ca. 8 mi e of Feather Falls. 1000 Comment
  CHSC36545  Vulpia microstachys var. pauciflora L. Ahart 1982-6-4 3553 Butte Lava cap, 1.5 mi e of Camp 18, ca. 8 mi e of Feather Falls. 304 Comment
  CHSC37081  Amaranthus retroflexus L. Ahart; M. S. Taylor 1982-10-11 3850 Butte On dry disturbed soil of a fire guard, n of check-in station, Graylodge Wildlife Refuge, 12 mi. sw of Gridley. 35 Comment
  CHSC37099  Epilobium brachycarpum L. Ahart 1982-9-13 3818 Butte Near edge of dirt rd that is near Pinkard Creek, ca. 1.8 mi n of Lost Creek Reservoir Dam, ca. 2.2 mi nw of Strawberry Valley. 1100 Comment
  CHSC37119  Disporum hookeri L. Ahart 1982-9-13 3810 Butte Near Pinkard Creek, ca. 1/8 mi n of Lost Creek Reservoir Dam, ca. 2.2 mi nw of Strawberry Valley. 1100 Comment
  CHSC37133  Perideridia bolanderi subsp. involucrata L. Ahart 1982-7-1 3654 Butte Ca. 1 1/4 mi n and 2 1/2 mi e of Honcut, Peter Ahart Ranch. 50 Comment
  CHSC37273  Cirsium vulgare L. Ahart 1982-8-10 3739 Butte Around rice field, Peter Ahart Ranch, ca. 2 1/2 mi n and 1/2 mi e of Honcut. 50 Comment
  CHSC37275  Perideridia lemmonii L. Ahart 1982-8-19 3744 Butte Along sides of North Honcut Creek, in a protected shady place, Peter Ahart Ranch, ca. 1 mile n and 3 mi e of Honcut. 50 Comment
  CHSC39303  Lathyrus tingitanus Lowell Ahart 1983-6-26 4127 Butte Along Ponderosa Way, about 2 miles south-east of the intersection of the Oroville Quincy Highway and Ponderosa Way, about 15 miles north-east of Oroville. The sign gives Big Ridge Road instead of Ponderosa Way. 500 Comment
  CHSC39305  Trifolium variegatum var. variegatum Lowell Ahart 1983-6-26 4129 Butte On the sides of a small stream along Ponderosa Way, about 2 miles south-east of the intersection of the Oroville Quincy Highway and Ponderosa Way, about 15 miles north-east of Oroville. Note: the sign gives Big Ridge Road instead of Ponderosa Way. 500 Comment
  CHSC39317  Pentagramma triangularis subsp. semipallida Lowell Ahart 1983-6-26 Butte Along Ponderosa Way, about 1/8 mile east of the intersection of the Oroville Quincy Highway and Ponderosa Way, about 15 miles north-east of Oroville. Note: the sign gives Big Ridge Road instead of Ponderosa Way. 500 Comment
  CHSC39329  Navarretia viscidula subsp. purpurea Lowell Ahart 1983-6-26 4133 Butte Found along the edge of Ponderosa Way, about 1/2 mile west of the East Fork of Canyon Creek, about 14 miles north-east of Oroville. Note: the sign gives Big Ridge Road instead of Ponderosa Way. 500 Comment
  CHSC39400  Cyperus squarrosus L. Ahart 1983-9-17 4431 Butte Ca. 1/8 mi ne of Kunkle Reservoir, south of Paradise. 600 Comment
  CHSC39406  Cyperus niger L. Ahart 1983-9-17 4432 Butte Ca. 1/8 mi ne of Kunkle Reservoir, south of Paradise. 182 Comment
  CHSC39538  Cryptantha simulans Lowell Ahart 1983-5-28 4020 Butte On both sides of the trail to Feather Falls, about 5 1/4 miles north of the town of Feather Falls. 600 Comment
  CHSC39548  Stachys stricta Lowell Ahart 1983-7-29 4217 Butte About 2 1/2 miles west on Bloomer Hill Road from the Oroville Quincy Highway, about 13 miles north of Oroville. 500 Comment
  CHSC39555  Ailanthus altissima Lowell Ahart 1983-7-24 4208 Butte Near the dirt road at the Forbestown Res., about 5 miles north-east of Forbestown. 450 Comment
  CHSC39560  Hoita macrostachya Lowell Ahart 1983-7-24 4201 Butte About 1/2 mile south-west of the intersection of the Oroville Forbestown Road and Black Bart Road, about 6 miles south-west of Forbestown. 750 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
  CHSC39646  Anthriscus caucalis Lowell Ahart 1983-4-10 3928 Butte About 1 1/2 miles north-east of Highway 99 and Pentz Road. 100 Comment
  CHSC39668  Hesperolinon micranthum Lowell Ahart 1983-6-21 4094 Butte Found along Bloomer Hill Road, about 1 1/4 miles west of the Oroville Quincy Highway, about 15 miles north-east of Oroville. 450 Comment
  CHSC39672  Achnatherum lemmonii Lowell Ahart 1983-6-21 4087 Butte Found along Bloomer Hill Road, about 1 1/4 miles west of the Oroville Quincy Highway, about 15 miles north-east of Oroville. Section 31. 137 Comment
  CHSC39674  Rhamnus tomentella subsp. tomentella Lowell Ahart 1983-6-21 4100 Butte Along the edge of Bloomer Hill Road, about 3 miles north-west of the Oroville-Quincy Highway, about 16 miles north-east of Oroville. Section 30. 700 Comment
  CHSC40003  Juncus effusus subsp. pacificus Lowell Ahart 1983-8-16 4299 Butte Found along the edges of a small bog, near a small stream that flows into Butte Creek, about 1 mile east of Butte Meadows. 1450 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
  CHSC40269  Carex amplifolia Lowell Ahart 1985-6-30 5077 Butte At a small stream east of the dirt road to the Forbestown Res., about 2 1/2 miles north-east of Forbestown. 868 Comment
  CHSC40302  Gamochaeta argyrinea Lowell Ahart 1985-5-31 5036 Butte Along a wash about 25 feet above the high water line of Lake Oroville, about 1/4 mile west of the Enterprise Boat Launch Area, about 1 mile west of the Enterprise Bridge, north-east of Oroville. 274 Comment
  CHSC40356  Pleuricospora fimbriolata Lowell Ahart 1985-7-16 5148 Butte South of Willow Creek, about 100 meters south-west of 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. 1828 Comment
  CHSC40363  Asclepias cordifolia Lowell Ahart 1985-6-17 5063 Butte 100 yards south of the dirt road, Lumpkin Ridge, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 975 Comment
  CHSC40365  Tribulus terrestris Lowell Ahart 1985-7-9 5110 Butte On a side road 100 yards west of Ponderosa Way, about 1/4 mile north-west of the Ponderosa Dam across the South Fork of the Feather River. 292 Comment
  CHSC40387  Aspidotis densa Lowell Ahart 1985-5-15 4981 Butte About 1/2 mile north of the intersection of Lunt Road and Highway 70, north of Yankee Hill. 502 Comment
  CHSC40438  Perideridia bacigalupii Lowell Ahart 1985-8-15 5163 Butte 50 yards south of the road to the Forbestown Res., about 2 1/2 miles north-east of Forbestown. 883 Comment
  CHSC40448  Agrostis hendersonii Lowell Ahart 1985-5-22 5029 Butte Along the edge of Bean Creek Road, about 1/2 mile south-east of Little Bald Rock. 1066 Comment
  CHSC40453  Vulpia microstachys var. ciliata Lowell Ahart 1985-5-15 4969 Butte West of Lunt Road, about 1/2 mile north of the intersection of Lunt Road and Highway 70, north of Yankee Hill. 502 Comment
  CHSC40455  Melica californica Lowell Ahart 1985-5-15 4974 Butte West of Lunt Road, about 1/2 mile north of the intersection of Lunt Road and Highway 70, north of Yankee Hill. 502 Comment
  CHSC40552  Senecio vulgaris Ahart; Jokerst 1985-3-24 4867 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
  CHSC40561  Symphyotrichum chilense Lowell Ahart 1985-10-12 5197 Butte Near the east side of Kunkle Reservoir, about 2 miles south of Paradise. 502 Comment
  CHSC40608  Crassula connata Ahart; Jokerst 1985-3-24 4853 Butte Serpentine Point, West of Yankee Hill. 550 Comment
  CHSC40769  Allium 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. 731 Comment
  CHSC40890  Antirrhinum leptaleum Lowell Ahart 1985-6-30 5073 Butte About 10 yards south of Forbestown Road, about 100 yards south of intersection with Black Bart Road, about 1 mile west of intersection with Robinson Mill Road. 609 Comment
  CHSC40896  Lindernia dubia var. anagallidea Lowell Ahart 1985-11-5 5226 Butte 90 feet below the high water line of Lake Oroville, on the south side of the South Fork of the Feather River, where Sucker Creek flows into the river, about 1/2 mile wes of the Ponderosa Dam. 274 Comment
  CHSC40907  Elatine heterandra Lowell Ahart 1985-11-7 5231 Butte About 80 feet below the high water line of Lake Oroville, on the bottom of the South Fork of the Feather River, about 300 yards north-west of the Ponderosa Dam. 277 Comment
  CHSC40913  Acmispon argophyllus var. fremontii Lowell Ahart 1977-4-28 1324 Butte About 1 mile north-east of the Ponderosa Dam, north of Forbestown. 457 Comment
  CHSC41414  Brassica nigra Lowell Ahart 1986-5-10 5273 Butte In a field, Peter Ahart Ranch, about 2 miles north and 1/4 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC41773  Lamium amplexicaule Lowell Ahart 1986-11-7 5420 Butte East of the Feather River, north of the Oroville Gridley Highway, about 3 miles east of Gridley. 28 Comment
  CHSC41888  Populus tremuloides Lowell Ahart 1986-8-15 5384 Butte South of the dirt road, about 1/2 mile south-west of Bald Mountain, about 4 1/2 miles north-east of Stirling City. 1615 Comment
  CHSC42004  Anaphalis margaritacea Lowell Ahart 1975-9-4 972 Butte 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
  CHSC42050  Ranunculus canus Lowell Ahart 1986-4-4 5241 Butte Near North Honcut Creek, about 2 1/2 miles north and 3 miles east of Honcut, about 12 miles south of Oroville. 67 Comment
  CHSC42056  Rotala ramosior Lowell Ahart 1986-11-9 5441 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
  CHSC42063  Amsinckia intermedia Lowell Ahart 1986-11-7 5430 Butte In a prune orchard, east of the Feather River, north of the Oroville Gridley Highway, about 3 miles east of Gridley. 28 Comment
  CHSC42065  Cyperus flavicomus Lowell Ahart 1984-9-24 4810 Butte Along the edge of Middle Honcut Road, about 3/4 mile east of Highway 70, about 12 miles south of Oroville. 32 Comment
  CHSC42098  Ammannia coccinea Lowell Ahart 1986-11-9 5442 Butte About 1/10 mile south of the clay burrow for Oroville Dam, 1.4 mile east of Larkin Road, about 6 miles south-west of Oroville. 36 Comment
  CHSC42118  Mollugo verticillata Lowell Ahart 1986-11-14 5478 Butte On the drying margins 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
  CHSC42362  Epilobium ciliatum subsp. ciliatum Lowell Ahart 1987-5-27 5704 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
  CHSC42406  Lewisia triphylla Lowell Ahart 1987-5-12 5638 Butte South of Lumpkin Ridge Road, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 1280 Comment
  CHSC42454  Poa annua Lowell Ahart 1987-5-6 5559 Butte On a gravel bar along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC42501  Taxus brevifolia Lowell Ahart 1987-5-22 5682 Butte Near a dirt road, about 1/8 mile north-east of Feather Falls. 1219 Comment
  CHSC42548  Lathyrus jepsonii var. californicus Lowell Ahart 1987-4-30 5488 Butte On the banks of North Honcut Creek, about 2 1/2 miles north and 3 miles east of Honcut, about 12 miles southeast of Oroville. 67 Comment
  CHSC42553  Collomia heterophylla Lowell Ahart 1987-5-22 5661 Butte South of the lava cap, about 1/4 mile south of Lumpkin Ridge Road, about 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 1280 Comment
  CHSC42555  Carex subfusca Lowell Ahart 1987-5-6 5544 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
  CHSC42723  Linnaea borealis var. longiflora Lowell Ahart 1987-5-22 5680 Butte About 1/8 mile north-east of Camp 18, about 61/2 miles north-east of Feather Falls. 1219 Comment
  CHSC42725  Githopsis specularioides Lowell Ahart 1987-5-11 5622 Butte South of the Forbestown Ditch, about 2 1/2 miles north-east of Forbestown. 868 Comment
  CHSC42842  Carex laeviculmis Lowell Ahart 1981-8-15 3048 Butte Seep like area on the south side of the dirt road, about 1 mile east of Coon Hollow Road, south-east of Snag Lake, about 10 miles north of Inskip. 1737 Comment
  CHSC42870  Erythranthe bicolor Lowell Ahart 1987-5-11 5615 Butte South of the Forbestown Ditch, about 2 1/2 miles north-east of Forbestown. 868 Comment
  CHSC42914  Deschampsia elongata Lowell Ahart 1987-7-17 5822 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
  CHSC42967  Mimetanthe pilosa Lowell Ahart 1987-7-3 5770 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
  CHSC43252  Myriophyllum spicatum Lowell Ahart 1987-9-4 5875 Butte In a deep drain ditch, along the Biggs Princeton Highway, under P. G. and E. power lines, about 1 mile west of Biggs. 28 Comment
  CHSC43254  Hypochaeris radicata Lowell Ahart 1987-10-16 5913 Butte Along Oroville Quincy Highway, along the edge of Madrone Lake. 609 Comment
  CHSC43261  Lindernia dubia var. anagallidea Lowell Ahart 1987-9-4 5878 Butte North Honcut Creek, about 2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 67 Comment
  CHSC43409  Stellaria nitens Lowell Ahart 1978-4-19 1651 Butte Along the trail to Feather Falls, about 3 miles north-west of the town of Feather Falls. 609 Comment
  CHSC43425  Plagiobothrys tenellus Lowell Ahart 1977-4-28 1329 Butte Along the edge of Ponderosa Way, near the Ponderosa Dam, about 4 miles south-west of Feather Falls. 365 Comment
  CHSC43524  Eleocharis acicularis var. occidentalis Lowell Ahart 1980-6-15 2381 Butte Along the edge of a large wash, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC44330  Microsteris gracilis Lowell Ahart 1988-3-27 5936 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
  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
  CHSC44346  Thalictrum fendleri var. polycarpum Lowell Ahart 1988-4-6 5958 Butte Near a small stream and east of North Honcut Creek, on the Joie Osgood Ranch, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles southeast of Oroville. 60 Comment
  CHSC44372  Pseudognaphalium stramineum Lowell Ahart 1988-6-23 6079 Butte Meadow, south of the intersection of Black Bart Road and Forbestown Road, about 1 mile west of Robinson Mill Road. 670 Comment
  CHSC44393  Lotus corniculatus Lowell Ahart 1988-6-21 6047 Butte Along the edge of the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC44395  Acmispon strigosus Lowell Ahart 1988-7-3 6116 Butte Along the road gutter, along the road to the generator at Ponderosa Reservoir, about 1 mile east of the Ponderosa Dam. 457 Comment
  CHSC44419  Polygonum parryi Lowell Ahart 1988-6-15 6041 Butte Small meadows or openings in pines, north of Forbestown Road, about 100 meters east of the intersection of Black Bart Road and Forbestown Road, about 1 mile west of Robinson Mill Road. 670 Comment
  CHSC44427  Galium parisiense Lowell Ahart 1988-6-29 6091 Butte East of Galen Ridge Road, about 1/2 mile east of the Oroville Quincy Highway, north of Lake Madrone. 621 Comment
  CHSC44435  Triteleia bridgesii Lowell Ahart 1988-6-15 6039 Butte North of Forbestown Road, about 100 meters east of the intersection of Black Bart Road and Forbestown Road, about 1 mile west of Robinson Mill Road. 670 Comment
  CHSC44458  Piptatherum miliaceum Lowell Ahart 1988-5-30 6016 Butte Near the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 274 Comment
  CHSC44490  Velezia rigida Lowell Ahart 1988-5-15 6002 Butte About 1/4 mile east of Highway 70, about 1/2 mile south of Oroville Dam Boulevard, south of Oroville. 42 Comment
  CHSC44532  Spiranthes porrifolia Lowell Ahart 1988-5-30 6032 Butte About 1/12 mile north of the bridge across the North Fork of the Feather River, along Poe Power House Road, about 2 miles south-east of Jarbo Gap. 335 Comment
  CHSC44570  Holcus lanatus Lowell Ahart 1979-6-9 1930 Butte East of Kunkle Creek, about 2 miles south-east of Paradise. 457 Comment
  CHSC44591  Poa secunda subsp. secunda Lowell Ahart 1979-5-7 1858 Butte Along edges of wash, east of Kunkle Creek, about 2 1/2 miles south-east of Paradise. 457 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
  CHSC45099  Eriogonum luteolum Lowell Ahart 1988-8-10 6171 Butte On a large road cut along Poe Power House Road, about 1 mile north-west of the Poe Power House, about 1 mile south-east of Jarbo Gap. 487 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
  CHSC45145  Cyperus flavescens Lowell Ahart 1975-8-21 957 Butte Along the edges of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC45196  Horkelia fusca subsp. parviflora Lowell Ahart 1984-7-19 4753 Butte Near the edges of a meadow, near the dirt road, about 1 1/2 miles south-east of Bald Mountain, 1/4 mile east of Oak Point, about 5 air miles north-east of Stirling City. 1371 Comment
  CHSC45208  Cynosurus echinatus Lowell Ahart 1975-5-12 759 Butte Near North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC45897  Plagiobothrys austiniae Lowell Ahart 1984-4-6 4544 Butte About 1/2 mile north of Kunkle Reservoir, about 2 miles south of Paradise. 548 Comment
  CHSC45900  Hypericum anagalloides Lowell Ahart 1977-6-3 1404 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 1/4 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC45906  Cercis occidentalis Lowell Ahart 1973-3-26 185 Butte Growing along North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC46038  Azolla microphylla Lowell Ahart 1975-1-9 697 Butte On the west side of North Honcut Creek, about 2 1/2 miles north and 3 miles east of Honcut, from Honcut go east to Dunstone Drive and stop when you get to the 'S' curve, then go west about 1/4 mile to North Honcut Creek. 60 Comment
  CHSC46352  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
  CHSC46361  Convolvulus arvensis Lowell Ahart 1989-5-23 6237 Butte Near a small stream, near a new subdivision road, 1/2 mile east of Dunstone Drive, about 1/2 mile north of Bangor Park Road, west of Bangor. 76 Comment
  CHSC46403  Crucianella angustifolia Lowell Ahart 1989-5-23 6252 Butte About 1/2 mile west of the Oroville Bangor Highway, about 1 mile north-west of Bangor. 213 Comment
  CHSC46405  Galium parisiense Lowell Ahart 1989-5-23 6259 Butte Along the edges of Avacado Road, about 1/2 mile west of the Oroville Bangor Highway, about 1 mile north-west of Bangor. 213 Comment
  CHSC46417  Allium campanulatum Lowell Ahart 1989-5-29 6319 Butte Just west of Pinkard Creek, about 1/4 mile north of the Lost Creek Dam. 1005 Comment
  CHSC46429  Chlorogalum angustifolium Lowell Ahart 1989-5-23 6261 Butte Along Swedes Flat Road, about 1 mile east of the Oroville Bangor Highway, north of Bangor. 426 Comment
  CHSC46643  Epilobium torreyi Lowell Ahart 1989-7-4 6362 Butte South of Oregon Gulch Road, about 1/4 mile north-west of the Cementery, about 1 1/4 miles west of Rocky Point, about 10 miles east and 3 miles north of Oroville. 335 Comment
  CHSC47388  Thysanocarpus curvipes Lowell Ahart 1975-4-2 737 Butte Along the edge of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC47409  Geranium molle Lowell Ahart 1978-4-13 1629 Butte Near North Honcut Creek, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC47423  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 1974-8-14 603 Butte Along North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 1/2 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC47425  Umbellularia californica Lowell Ahart 1977-3-29 1232 Butte Along the Feather River, about 5 miles south-west of Oroville. 30 Comment
  CHSC47447  Rotala ramosior Lowell Ahart 1975-7-19 899 Butte Along the edge of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 1/2 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC47524  Juncus bufonius var. bufonius Lowell Ahart 1974-5-31 463 Butte Small wash, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC47607  Bromus madritensis subsp. madritensis Lowell Ahart 1972-4-18 85 Butte In a pasture field, Peter Ahart Ranch, about 1 1/2 miles north and 2 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC47613  Deschampsia danthonioides Lowell Ahart 1983-5-12 3977 Butte On the bottom and sides of vernal pools, about 1/2 mile north-east of Highway 99 and Pentz Road. 60 Comment
  CHSC50039  Acmispon parviflorus Lowell Ahart 1990-4-8 6439 Butte On the east side of Pacific Heights Road, about 3-1/2 miles southwest of Oroville. 33 Comment
  CHSC50049  Nemophila heterophylla Lowell Ahart 1990-3-9 6413 Butte On the steep banks on the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CHSC50677  Leptosiphon acicularis Lowell Ahart 1990-4-7 6432 Butte In a pasture field, about 3 miles north and 1 1/2 miles east of Honcut, about 10 miles south of Oroville. 45 Comment
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Jul 19 2018
  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
  CHSC51221  Lepechinia calycina Lowell Ahart 1979-5-29 1892 Butte Growing east of the Pentz Magalia Highway, about 1/8 mile north of Kunkle Reservoir, west of Kunkle Creek, about 2 1/2 miles south-east of Paradise. 487 Comment
  CHSC51259  Chamaesyce maculata Lowell Ahart 1990-10-3 6617 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
  CHSC54163  Trifolium oliganthum Lowell Ahart 1991-4-19 6645 Butte On a steep slope on the west side of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 2 and 3/4 miles east of Honcut, about 12 miles south-east of Oroville. 45 Comment
  CHSC54165  Juncus leiospermus var. ahartii Lowell Ahart 1991-5-2 6647 Butte On the sides and bottom bottom of a small vernal pool, Peter Ahart Ranch, about 2 1/4 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC55052  Anaphalis margaritacea Lowell Ahart 1991-8-25 6710 Butte On the north side of Four Trees Road, near a small branch of Mill Creek, about 5 miles east of Highway 70. 1066 Comment
  CHSC55054  Atriplex canescens Lowell Ahart 1991-9-6 6713 Butte On the south side of Rutherford Road, about 1/8 mile west of Pennington Road, south of Parking Area 5, Gray Lodge Waterfowl Management Area, about 10 miles south-west of Gridley. 30 Comment
  CHSC55061  Bacopa eisenii Lowell Ahart 1991-9-24 6730 Butte At the Rice Experiment Station, south of Highway 162, about 3.5 miles north-west of Biggs. 30 Comment
  CHSC58264  Cuscuta pentagona Lowell Ahart 1992-5-23 6772 Butte North side of Biggs Princeton Road, about 2 miles west of Biggs. 30 Comment
  CHSC58932  Epilobium hornemannii subsp. hornemannii Lowell Ahart 1992-7-26 6854 Butte In a small stream, about 1/2 mile north of the Carr Mine, about 2 (air) miles south of Snow Mountain. 1798 Comment
  CHSC58944  Polygonum douglasii subsp. douglasii Lowell Ahart 1992-7-29 6873 Butte About 1 mile northeast of the Carr Mine, about 3/4 mile northwest of Lotts Lake. 1798 Comment
  CHSC59023  Juncus nevadensis Lowell Ahart 1992-7-21 6796 Butte On the bottom of a snow lake, on the south side of Coon Hollow, about 2 (air) miles northeast of Philbrook Reservoir. 1737 Comment
  CHSC59037  Agrostis scabra Lowell Ahart 1992-7-21 6809 Butte On the south side of Coon Hollow, about 2 (air) miles north-east of Philbrook Reservoir. 1737 Comment
  CHSC60999  Philadelphus lewisii Lowell Ahart 1993-7-6 7060 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC61007  Galium aparine Lowell Ahart 1993-6-20 6988 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC61013  Heuchera micrantha var. erubescens Lowell Ahart 1993-7-6 7057 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC61015  Castilleja campestris subsp. campestris Lowell Ahart 1993-5-17 6950 Butte On the west side of Dunstone Road, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 60 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
  CHSC61510  Carex lemmonii Lowell Ahart 1993-6-26 7007 Butte Small meadow, on the south side of the dirt road, about 1/4 mile west of the Lost Creek Reservoir. 1036 Comment
  CHSC61516  Juncus bufonius var. bufonius Lowell Ahart 1993-5-17 6949 Butte Large vernal pool, on the west side of Dunstone Road, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles southeast of Oroville. 60 Comment
  CHSC63251  Medicago orbicularis Lowell Ahart 1994-3-30 7279 Butte Garden area at the north-east corner of Oregon City School House, Oregon City, about 7 miles north of Oroville. 365 Comment
  CHSC63262  Leptosiphon acicularis Lowell Ahart 1994-4-16 7284 Butte Peter Ahart Ranch, about 1 5/8 miles north and 2 1/4 miles east of Honcut, about 12 miles south-east of Oroville. 54 Comment
  CHSC63717  Polygonum parryi Lowell Ahart 1994-10-9 7555 Butte In a small grassy opening, on the north side of Forbestown road, about 150 yards east of the intersection of Black Bart Road and Forbestown Road, about 3 (air) miles west of Forbestown. 609 Comment
  CHSC64541  Trifolium jokerstii Lowell Ahart; Ruth Gray Cunningham 1995-4-2 7569 Butte Small drainages on the north basalt rim of Beatson Hollow, about 1/10 mile south of the reservoir, on North Table Mountain, about 7 miles north of Oroville. 297 Comment
  CHSC65168  Mentha pulegium Lowell Ahart 1995-8-19 7619 Butte East side of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 3/4 miles east of Honcut, about 12 miles south-east of Oroville. 36 Comment
  CHSC65193  Soliva sessilis Lowell Ahart 1995-5-30 7575 Butte Along the edge of the dirt road, about 1/8 mile north of Cherokee Road, North Table Mountain, about 7 miles north of Oroville. 335 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
  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
  CHSC69036  Adenocaulon bicolor Lowell Ahart 1997-8-1 7801 Butte On the south side of the County Road, southwest of Keyser Creek, about 1 1/2 miles southest of Bald Mountain, about 6 miles (air) northeast of Stirling City. 1432 Comment
  CHSC69107  Senecio triangularis Lowell Ahart 1997-8-1 7767 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
  CHSC69113  Aconitum columbianum Lowell Ahart 1997-8-1 7768 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
  CHSC69115  Penstemon neotericus Lowell Ahart 1997-8-1 7771 Butte On the west side of Little Kimshew Creek, Snow Meadow, about 1/4 mile east of Table Mountain , about 8 miles (air) northeast of Stirling City. 1524 Comment
  CHSC69442  Sericocarpus oregonensis Lowell Ahart 1997-9-6 7890 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
  CHSC69711  Agrostis capillaris Lowell Ahart 1997-9-27 7915 Butte Back yard at the Ehmann Home, corner of Lincoln and Robinson Streets, Oroville. 51 Comment
  CHSC69728  Juncus ensifolius Lowell Ahart 1997-10-20 7928 Butte On sand bars, on the west side of the sharp bend in the South Fork of the Feather River, about 1/4 mile north of the bridge across the river, about 3/4 mile north of Golden Trout Crossing, 3 miles (air) northwest of Sly Creek Reservoir Dam. 914 Comment
  CHSC70852  Trifolium willdenovii Lowell Ahart 1998-4-8 7948 Butte West of the dirt road, 1/10 mile north of the Thermalito Diversion Dam, east of the Thermalito Diversion Pool, 1/4 mile northeast of Oroville. 67 Comment
  CHSC71202  Juncus tenuis Lowell Ahart 1998-6-3 7963 Butte Northwest of the lone tree, northwest of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CHSC71204  Spiranthes porrifolia Lowell Ahart 1998-6-9 8000 Butte Northwest of th cow chute on the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 396 Comment
  CHSC71459  Calycadenia multiglandulosa Lowell Ahart 1998-7-19 8047 Butte Along Hurleton Swedes Flat Road, 1 1/2 miles (air) south of Hurleton, about 11 miles (air) southeast of Oroville. 487 Comment
  CHSC75256  Plagiobothrys stipitatus var. micranthus Lowell Ahart 1999-5-21 8075 Butte On the sides an bottom of a drain ditch in a pasture field, on the east side of Evans Reimer Road, about 7/8 mile east of Pennington Road, about 5 miles (air) southwest of Gridley. 21 Comment
  CHSC75971  Medicago polymorpha Lowell Ahart; Vernon Oswald 1999-8-13 8162 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
  CHSC75990  Rorippa palustris var. hispida Lowell Ahart; Vernon H. Oswald 1999-8-13 8182 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
  CHSC75996  Dysphania botrys Lowell Ahart; Vernon H. Oswald 1999-8-13 8178 Butte Disturbed area along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southwest 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
  CHSC77987  Lathyrus angulatus Lowell Ahart 2000-5-13 8351 Butte Near 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
  CHSC77998  Eleocharis acicularis var. occidentalis Lowell Ahart 2000-5-11 8338 Butte Along a small wash, about 100 yards south of a dirt road, Peter Ahart Ranch, about 1 1/2 miles north and 1 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville. 45 Comment
  CHSC78001  Isolepis cernua Lowell Ahart 2000-5-10 8334 Butte On the sides of a moist (seepy) swale, about 100 yards south of a deep wash, just east of a dirt road, Peter Ahart Ranch, about 1 3/4 miles north and 1 1/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 36 Comment
  CHSC78122  Hedypnois cretica Lowell Ahart 2000-5-31 8429 Butte Below the high water line of Lake Oroville, about 400 yards est of where Kunkle Creek enters Lake Oroville, east of the Kunkle Power House, about 3 miles southeast of Paradise. 271 Comment
  CHSC78169  Erythranthe glaucescens Lowell Ahart 2000-5-31 8428 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
  CHSC78220  Alopecurus saccatus Lowell Ahart 2000-5-18 8371 Butte On the bottom of the Clay Pit, about 1/8 mile west of the Oroville Airport and Larkin Road, about 4 1/2 miles (air) southwest of Oroville. 36 Comment
  CHSC78300  Eleocharis montevidensis Lowell Ahart 2000-6-21 8497 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
  CHSC78306  Eleocharis quinqueflora Lowell Ahart 2000-6-29 8542 Butte By the road culvert on the northwest side of Concow Road at Flea Meadow, about 1/2 mile west of Flea Mountain, about 3 1/2 miles (air) north of Concow Reservoir, about 5 miles (air) east of Magalia. 1036 Comment
  CHSC78354  Agrostis pallens Lowell Ahart 2000-6-27 8517 Butte Big Bald Rock, about 3 miles (air) east of Madrone Lake, about 12 miles (air) northeast of Oroville. 993 Comment
  CHSC78563  Eleocharis Lowell Ahart 2000-8-23 8665 Butte In a small pond, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. 42 Comment
  CHSC78565  Eleocharis pachycarpa Lowell Ahart 2000-8-30 8676 Butte Bottom of a small depression, southeast of a large pond, about 100 yards south of the Feather River, west of the break in the levee, about 1/2 mile (air) west of Pacific Heights Road, Oroville Wildlife Area, about 3 1/3 miles (air) southwest of Oroville. 42 Comment
  CHSC78831  Elatine ambigua Lowell Ahart 2000-10-19 8710 Butte Fallow rice field, on the north side of Lower Honcut Road, west of Wyandotte Creek, about 150 yards west of the railroad, 1 1/2 miles west of Honcut, about 13 miles south of Oroville. 26 Comment
  CHSC79632  Azolla filiculoides Lowell Ahart 2001-1-26 8718 Butte On the east side of the parking lot, on the north side of Rutherford Road, about 1/4 mile west of Pennington Road, Gray Lodge Waterfowl Management Area, about 6 miles (air) southwest of Gridley. 21 Comment
  CHSC80530  Lavatera cretica Lowell Ahart 2001-4-19 8730 Butte On the east side of Highway 70, about 50 yards south of Middle Honcut Road, about 3 1/4 miles (air) northwest of Honcut, about 1 mile south of Oroville. 29 Comment
  CHSC80540  Brassica napus Lowell Ahart 2001-5-10 8739 Butte On the sides 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
  CHSC82239  Planodes virginica Lowell Ahart 2002-3-28 9455 Butte In a rice field, on the north side of Gridley Road, about 5 miles west of Gridley. 21 Comment
  CHSC82390  Rosa pisocarpa subsp. ahartii Lowell Ahart 2002-6-2 9680 Butte On the north side of Black Bart Road, and 1 1/2 miles east of the intersection of Forbestown Road and Black Bart Road, about 12 miles (air) southeast of Oroville. Along the road. 548 Comment
  CHSC82396  Rosa californica Lowell Ahart 2002-5-15 9661 Butte On the south side of Central House Road, about 80 yards east of the bridge across Whyman Ravine, about 1/4 mile east of Highway 70, about 12 miles southwest of Oroville. 27 Comment
  CHSC82430  Cerastium glomeratum Lowell Ahart 2002-5-7 9619 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
  CHSC82436  Pterostegia drymarioides Lowell Ahart 2002-5-6 9607 Butte Bulldozed road, on top of the face of the exposed sand mine, east of the very beginning of Schirmer Ravine, about 200 yards east of the pond on the east side of Cherokee Road, North Table Mountain, about 4 miles (air) north of Oroville. 243 Comment
  CHSC82474  Elymus stebbinsii subsp. septentrionalis Lowell Ahart; John Dittes, Josephine Guardino 2002-6-21 9738 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
  CHSC83011  Digitaria sanguinalis Lowell Ahart 2002-9-7 9926 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
  CHSC83079  Chamaesyce maculata Lowell Ahart 2002-10-17 9994 Butte On the gentle hills below the high water line of Lake Oroville, about 1 1/2 miles south of Highway 162 (Oroville Quincy Highway), about 3 miles (air) northeast of Oroville Dam. 227 Comment
  CHSC83086  Rorippa curvisiliqua var. orientalis Lowell Ahart 2002-10-17 9987 Butte On the gentle hills below the high water line of Lake Oroville, about 1 1/2 miles south of Highway 162 (Oroville Quincy Highway), about 3 miles (air) northeast of Oroville Dam. 227 Comment
  CHSC83901  Trifolium variegatum var. variegatum Lowell Ahart 2003-4-15 10102 Butte Slopes of Beatson Hollow, southwest of drainage entering Beatson Hollow, about 1 1/4 miles northwest of the iron gate and fence, northwest of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 284 Comment
  CHSC83948  Thysanocarpus radians Lowell Ahart 2003-3-24 10023 Butte Fields, about 50 yards north of the access road to the boat ramp at the Thermalito Afterbay, about 200 yards west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 48 Comment
  CHSC83955  Juncus leiospermus var. leiospermus Lowell Ahart 2003-4-8 10036 Butte On the high water line of a small vernal pool, about 20 yards south of a faint poor dirt road, pasture field, about 150 yards southwest of the iron gate and fence, west of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 344 Comment
  CHSC83966  Trifolium jokerstii Lowell Ahart 2003-4-8 10039 Butte Pasture field, about 130 yards southeast of the tall Digger Pine on the south edge of Beatson Hollow, about 3/4 mile northwest of the iron gate and fence, northwest of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 334 Comment
  CHSC84055  Elymus caput-medusae Lowell Ahart 2003-5-15 10177 Butte Pasture fields, Peter Ahart Ranch, about 2 miles north and 2 miles east of Honcut, about 12 miles southeast of Oroville. 48 Comment
  CHSC84124  Hesperevax caulescens Lowell Ahart 2003-5-14 10175 Butte About 150 yards west of the dredge piles along North Honcut Creek, about 2 1/2 miles north and 2 1/2 miles east of Honcut, about 12 miles southeast of Oroville. 60 Comment
  CHSC84169  Antirrhinum vexillo-calyculatum subsp. intermedium Lowell Ahart 2003-7-10 10370 Butte On both sides of the dirt road to the power generator, on the north side of Ponderosa Reservoir, about 1 1/2 miles (air) east of the Ponderosa Dam. 331 Comment
  CHSC84403  Stephanomeria paniculata Lowell Ahart 2003-8-6 10475 Butte In the road gutter on the east side of Encina Grande Road, just south of a small branch of Canyon Creek, about 1 mile west of Oroville Quincy Highway, about 2 1/2 miles (air) southwest of Berry Creek. 632 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
  CHSC87877  Polystichum imbricans subsp. imbricans Lowell 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 miles (air) west of Stirling City. 628 Comment
  CHSC87953  Bromus carinatus var. carinatus Lowell Ahart 2004-6-22 11115 Butte On the north side of Doe Mill Road, about 100 yards 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
  CHSC87955  Melica geyeri Lowell Ahart 2004-6-22 11110 Butte On the east margin of a gravel road, road leads to Butte Creek, south of Doe Mill Road, about 1/8 mile southwest of the bridge across Butte Creek, about 2 miles (air) southeast of Forest Ranch, about 5 miles (air) west of Stirling City. 692 Comment
  CHSC88177  Epilobium densiflorum Lowell Ahart 2004-7-20 11287 Butte On the north side of a deep wash, about 200 yards north of the home, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles (air) south of Oroville. 30 Comment
  CHSC88223  Carex nervina Lowell Ahart 2004-7-23 11297 Butte On the sides of a small stream, about 20 yards northwest of the dirt road to the West Branch Campground, about 50 yards southeast of the intersection of Humbug Road and Philbrook Reservoir Road, about 1 3/4 miles (air) west of Philbrook Reservoir Dam, about 3 miles (air) southeast of Butte Meadows. 1586 Comment
  CHSC88225  Carex angustata Lowell Ahart 2004-7-23 11310 Butte In a small bog, on the south side of the dirt road, about 200 yards east of the large bog, about 3/8 mile (air) east of Bald Mountain Lookout, about 4 1/4 miles (air) northeast of Stirling City. 1702 Comment
  CHSC88247  Bromus vulgaris Lowell Ahart 2004-7-11 11231 Butte On the east side of the road, on the northeast side of Paradise Lake, about 1/8 mile southeast of Mosquito Creek, about 4 miles (air) southwest of Stirling City. 814 Comment
  CHSC90639  Trifolium tomentosum Lowell Ahart 2005-4-2 11690 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
  CHSC90649  Lamium amplexicaule Lowell Ahart 2005-4-2 11691 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
  CHSC90811  Acmispon brachycarpus Lowell Ahart 2005-5-2 11783 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
  CHSC90828  Epilobium minutum Lowell Ahart 2005-5-2 11764 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
  CHSC90941  Trifolium willdenovii Lowell Ahart 2005-4-18 11735 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
  CHSC90994  Acmispon wrangelianus Lowell Ahart 2005-5-11 11798 Butte On the bottom of a small vernal pool, south part of North Table Mountain, about 300 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. 354 Comment
  CHSC91111  Navarretia pubescens Lowell Ahart 2005-5-28 11822 Butte Pasture, on the north side of Falager Ct., south of the Durham Pentz Road, east of Highway 99 East, about 4 miles east of Durham. 70 Comment
  CHSC91468  Aegilops triuncialis Lowell Ahart 2005-7-12 12142 Butte Poor road on the south side of Forest Road 21N40, about 100 yards west of Encina Grade Road (Bloomer Hill Road) (Forest Road 21N39). about 3/4 mile (air) west of Bloomer Hill, about 6 miles west of Oroville Quincy Highway. 822 Comment
  CHSC91472  Croton setiger Lowell Ahart 2005-7-13 12153 Butte About 100 yards east of the intersection of Forbestown Road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown, about 12 miles (air) east of Oroville. 759 Comment
  CHSC93350  Minuartia californica Lowell Ahart 2006-5-3 12559 Butte In the center of a shallow vernal pool, 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
  CHSC93356  Agrostis microphylla Lowell Ahart 2006-4-28 12549 Butte Open flat pasture, south of the old dirt road, about 1/4 mile southeast of the reservoir, about 2 miles by the dirt road northwest of the Iron Gate along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 316 Comment
  CHSC93363  Trifolium depauperatum var. depauperatum Lowell Ahart 2006-4-27 12536 Butte Pasture fields, Peter Ahart Ranch, about 1 1/4 miles north and 1 1/4 miles east of Honcut. 39 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
  CHSC93448  Micropus californicus var. californicus Lowell Ahart 2006-5-10 12624 Butte Road cut bank, on the north side of the poor dirt road, Bardees Bar Road, south of the small stream, about 200 yards northwest of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 1/2 miles (air) southwest of Pulga. 385 Comment
  CHSC93453  Vulpia microstachys var. pauciflora Lowell Ahart 2006-5-10 12620 Butte Road cut bank, on the north side of the poor dirt road, Bardees Bar Road, about 100 yards north of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 1/2 miles (air) southwest of Pulga. 354 Comment
  CHSC93455  Epilobium minutum Lowell Ahart 2006-5-10 12623 Butte Road cut bank, on the north side of the poor dirt road, Bardees Bar Road, about 100 yards north of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 1/2 miles (air) southwest of Pulga. 385 Comment
  CHSC93460  Lupinus nanus var. vallicola Lowell Ahart 2006-5-8 12594 Butte About 300 yards south of the three Gray Pines on the rim of Coal Canyon, about 2 miles northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 337 Comment
  CHSC93500  Minuartia californica Lowell Ahart 2006-5-8 12590 Butte Margins of a vernal pool, about 80 yards south of the three Gray Pines on the rim of Coal Canyon, about 1 3/4 miles northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 346 Comment
  CHSC93506  Achnatherum lemmonii Lowell Ahart 2006-5-10 12625 Butte Road bank, on the south side of the poor dirt road, Bardees Bar Road, south of the small stream, about 200 yards northwest of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 1/2 miles (air) southwest of Pulga. 385 Comment
  CHSC93858  Galium parisiense Lowell Ahart 2006-6-9 12651 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
  CHSC93871  Calystegia occidentalis subsp. occidentalis Lowell Ahart 2006-6-9 12642 Butte On the sides of a dead end side road, north side of the service road to Bardees Bar along the North Fork of the Feather River, about 50 yards east of the electric tower, on the east side of Highway 70, about 2 3/4 miles (air) southwest of Pulga. 534 Comment
  CHSC94168  Pyrola dentata Lowell Ahart 2006-6-24 12855 Butte On the west side of the dirt road (Ponderosa Way), on Cohasset Ridge, about 3 1/2 miles (air) northeast of Cohasset. 1130 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
  CHSC94291  Bromus ciliatus Lowell Ahart 2006-7-16 12975 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
  CHSC94486  Polygonum punctatum Lowell Ahart 2006-8-29 13237 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
  CHSC94599  Chamaesyce maculata Lowell Ahart 2006-9-11 13284 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
  CHSC94621  Juncus bufonius var. bufonius Lowell Ahart 2006-9-11 13300 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
  CHSC94789  Zeltnera venusta Lowell Ahart 2006-10-8 13432 Butte Mud flat, near a large gravel bar, east side of the North Fork of the Feather River, just east of where the river flows into a pool, on the west side of Highway 70, about 1/2 mile north of the Cresta Power House. 609 Comment
  CHSC94791  Alisma triviale Lowell Ahart 2006-10-8 13437 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
  CHSC96750  Juncus trilocularis Lowell Ahart 2007-6-12 14080 Butte On east side of Rockerfeller Road, at the intersection of Bald Rock Road and Rockerfeller Road, about 13 miles (air) northeast of Oroville. 1011 Comment
  CHSC96756  Elymus stebbinsii subsp. septentrionalis Lowell Ahart 2007-5-29 13936 Butte On the east side of Bald Rock Dome, on the west side of the Dome Trail, trail leads to the Middle Fork of the Feather River, about 1 3/4 miles by the trail from the trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Big Bald Rock, about 16 miles (air) northeast of Oroville. 585 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
  CHSC96807  Myosotis discolor Lowell Ahart 2007-5-22 13900 Butte In a small meadow at the parking area, Big Bald Rock, about 14 miles (air) northeast of Oroville. 893 Comment
  CHSC96813  Agrostis pallens Lowell Ahart 2007-5-29 13965 Butte Seep on the east side of Bald Rock Dome, on the west side of the Dome Trail, trail leads to the Middle Fork of the Feather River, about 1 3/4 miles by the trail from the trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Big Bald Rock, about 16 miles (air) northeast of Oroville. 585 Comment
  CHSC96815  Pentagramma triangularis subsp. semipallida 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, about 16 miles (air) northeast of Oroville. 844 Comment
  CHSC96884  Juncus tenuis Lowell Ahart 2007-6-12 14081 Butte On the east side of Rockefeller Road, at the intersection of Bald Rock Road and Rockefeller Road, about 13 miles (air) northeast of Oroville. 1011 Comment
  CHSC96935  Hydrocotyle umbellata Lowell Ahart 2007-7-11 14285 Butte About 100 yards west of the high gravel road (at turn, before washout), about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. 35 Comment
  CHSC97062  Juncus acuminatus Lowell Ahart 2007-7-27 14396 Butte On the south strand of the Thermalito Afterbay, about 200 yards north of Highway 162, about 5 miles west of the intersection of Highway 162 and Highway 70, about 5 1/2 miles (air) west of Oroville. 36 Comment
  CHSC97694  Glinus lotoides Lowell Ahart 2007-10-31 14512 Butte West of the official parking area, strand of Lake Oroville, Foreman Creek Area, about 1 mile south of Highway 162 (Oroville Quincy Road), about 7 miles (air) northeast of Oroville. 224 Comment
  CHSC97724  Cyperus niger Lowell Ahart 2007-11-3 14554 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
  CHSC98412  Persicaria hydropiper L. Ahart 1983-9-17 4437 Butte 1/4 mi se of Stirling City. 1100 Comment
  CHSC98952  Rorippa nasturtium-aquaticum Lowell Ahart 2008-5-21 14788 Butte Below the high water line of Lake Oroville, on the east side of Sucker Creek, about 100 yards north of where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile west of the Ponderosa Dam. 258 Comment
  CHSC98954  Stellaria media Lowell Ahart 2008-5-12 14752 Butte Below the high water line of Lake Oroville, on the east side of Sucker Creek, about 100 yards north of where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile west of the Ponderosa Dam. 258 Comment
  CHSC98961  Acmispon strigosus Lowell Ahart 2008-5-12 14734 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
  CHSC99011  Juncus bufonius var. bufonius Lowell Ahart 2008-5-30 14795 Butte Dry to damp granite soil, 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. 305 Comment
  CHSC99310  Cardamine oligosperma Lowell Ahart 2008-5-21 14786 Butte Below the high water line of Lake Oroville, on the south side of the South Fork of the Feather River, where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 246 Comment
  CHSC99316  Juncus trilocularis Lowell Ahart 2008-5-30 14792 Butte Northwest part of the top of Big Bald Rock, about 14 miles (air) northeast of Oroville. 976 Comment
  CHSC99484  Achnatherum thurberianum Lowell Ahart; John Dittes 2008-6-19 14870 Butte 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
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Oct 5 2019
  HSC100741  Mentha arvensis Lowell Ahart 2009-7-9 16009 Butte E side of Ten Mile House Rd., Upper Bidwell Park, ~3/4 (air) mi. W of Hwy. 32, 10 mi. NE of Chico. 236 Comment
  HSC100820  Polygonum lapathifolium Lowell Ahart 2011-8-17 17628 Butte ~10 yd. N of the trail, N of the crossing and on the E side of Big Chico Creek, ~50 yd. W of Ten Mile House Rd., Upper Bidwell Park, 3/4 (air) mi. W of Hwy. 32, 10 mi. NE of Chico. 204 Comment
  HSC103922  Calycadenia multiglandulosa L. Ahart 2013-7-1 18817 Butte About 3.25 mi. (air) SW of Forbestown; ~150 yds, E of the intersection of Forbestown Rd. and Black Bart Rd. 738 Comment
  HSC104022  Urtica dioica subsp. holosericea L. Ahart 2012-9-28 18464 Butte Chico, Lower Bidwell Park; ~ 200 yds. E of the east end of Sycamore Pool in Big Chico Creek, ~30 yds. N of Big Chico Creek 64 Comment
  HSC96804  Calystegia atriplicifolia subsp. buttensis L. Ahart 2006-6-24 12858 Butte W side of Ponderosa Way going NW on Cohasset Ridge about 3.75 mi. NE of Cohasset 1128 Comment
  HSC97057  Amaranthus deflexus L. Ahart 2004-9-28 11404 Butte S side of the Oroville Chico Hwy., W of Butte Creek, 1 1/8 mi. SE of the Midway, 2 1/8 mi. NE of Durham, 3.5 mi. SE of Chico 58 Comment
  JEPS103264  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2002-10-17 9995 Butte On the 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) NE of Oroville Dam. 227 Comment
  JEPS103308 Image available Mimulus tricolor Lowell Ahart 2002-4-14 9484 Butte Area between the Railroad and the Midway Road, 50 yards north of Nelson Dlavo Road, in Nelson. Comment
  JEPS103331  Calystegia occidentalis subsp. occidentalis Lowell Ahart 2002-6-21 9734 Butte On a mountainside, Watson Ridge, ca 2 miles (air) NE of Bald Rock Dome, ca 5 miles (air) N of Feather Falls (the town). 1086 Comment
  JEPS103505  Crassula aquatica Lowell Ahart 2002-4-14 9480 Butte Area between the Railroad and the Midway Road, 50 yards S of Nelson Dlavo Road, in Nelson. 36 Comment
  JEPS103517  Crassula tillaea Lowell Ahart 2002-4-10 9479 Butte Along the edge of the gravel roads, E of Parking Lot 10, Gray Lodge State Wildlife Management Area, ca 4 miles (air) SW of Gridley. 22 Comment
  JEPS103565  Elymus stebbinsii subsp. septentrionalis Lowell Ahart 2002-6-21 9738 Butte 5 air mi N of Feather Falls (town) (poor dirt road, Watson Ridge, 2 air mi NE of Bald Rock Dome) 1086 Comment
  JEPS104015  Poa annua Lowell Ahart 2003-3-31 10031 Butte Rice field, ca 50 yd e of the drain ditch, ca 20 yd n of Hamilton Rd, ca 3/8 mi e of Riceton Highway, ca 10 mi sw of Oroville. 29 Comment
  JEPS104278  Calycadenia spicata Lowell Ahart 2003-6-20 10296 Butte In pasture fields, Peter Ahart Ranch, ca 2 mi n and 1 3/8 mi e of Honcut, ca 12 mi se of Oroville. 42 Comment
  JEPS105933  Trifolium willdenovii Lowell Ahart 2004-4-4 10723 Butte About 300 yards east of Wilber Road, southeast of the high hill crossed by Wilber Road, cattle pasture, about 3 miles (air) west of Thermalito 48 Comment
  JEPS106001  Cicendia quadrangularis Lowell Ahart 2004-4-4 10714 Butte Bottom of a vernal pool, about 250 yards east of Wilber Road, northeast of the high hill crossed by Wilber Road, cattle pasture, about 3 miles (air) west of Thermalito 48 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
  JEPS107524  Aegilops cylindrica Lowell Ahart 2005-7-12 12142 Butte Poor road on the south side of Forest Road 21N40, about 100 yards west of Encina Grade Road (Bloomer Hill Road) (Forest Road 21N39). about 3/4 mile (air) west of Bloomer Hill, about 6 miles west of Oroville Quincy Highway 822 Comment
  JEPS107749  Clarkia purpurea subsp. quadrivulnera Lowell Ahart 2005-5-28 11820 Butte Pasture, on the south side of Nelson Avenue, east of the bridge across the Thermalito Forebay, Thermalito 67 Comment
  JEPS107939  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
  JEPS108767  Pedicularis attollens Lowell Ahart 2006-7-16 12979 Butte In the west edge of a wet meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 miles (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
  JEPS108897  Pyrola dentata Lowell Ahart 2006-7-11 12943 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
  JEPS108981  Galium bolanderi Lowell Ahart 2006-6-9 12661 Butte On the east side of Bardees Bar Road, north of the small stream, south 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
  JEPS110117  Gastridium ventricosum Lowell Ahart 2006-5-8 12611 Butte Grassy slope, 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, North Table Mountain, about 7 miles (air) north of Oroville 378 Comment
  JEPS110165  Juncus howellii Lowell Ahart 2006-8-15 13178 Butte North edge of a wet area west of a large open 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
  JEPS110192  Bromus carinatus var. carinatus Lowell Ahart 2006-7-16 12976 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
  JEPS110203  Carex jonesii Lowell Ahart 2006-7-16 12992 Butte On the west edge of Willow Creek, on the east side of a large meadow and bog, about 200 yards southeast of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
  JEPS110248  Agrostis microphylla Lowell Ahart 2006-5-3 12560 Butte On the west side of a small stream, about 50 yards south of the fence, about 1 mile northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 378 Comment
  JEPS110276  Cyperus flavescens Lowell Ahart 2006-9-28 13379 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
  JEPS110324  Scirpus diffusus Lowell Ahart 2006-7-25 13062 Butte In the west part of a large wet meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
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Feb 23 2009
  JEPS110436  Nemophila heterophylla Lowell Ahart 2006-4-28 12544 Butte On the south side of the dirt road, on the west side of a small stream, a part of the south drainage of Beatson Hollow, about 1/2 mile northwest of the Iron Gate along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 301 Comment
  JEPS110444  Vulpia myuros var. hirsuta Lowell Ahart 2005-12-11 12522 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
  JEPS110452  Typha latifolia Lowell Ahart 2006-8-5 13086 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 30 Comment
  JEPS113213  Quercus X morehus Lowell Ahart 2007-3-28 13599 Butte West of North Honcut Creek, about 2 1/2 miles north and 2 2/3 miles east of Honcut, about 12 miles southeast of Oroville 51 Comment
  JEPS113238  Stellaria pallida Lowell Ahart 2007-3-12 13591 Butte At the information sign, north side of Rutherford Road, 50 yards west of Pennington Road, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area), about 6 miles (air) southwest of Gridley 21 Comment
  JEPS113258  Agrostis pallens Lowell Ahart 2007-5-29 13965 Butte Seep on the east side of Bald Rock Dome, on the west side of the Dome Trail, trail leads to the Middle Fork of the Feather River, about 1 3/4 miles by the trail from the trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast 585 Comment
  JEPS113274  Carex cyrtostachya Lowell Ahart 2007-5-22 13912 Butte Along a small wash, on the northwest edge of a large bare granite opening (about an acre in size), northeast of Little Bald Rock, about 16 miles (air) northeast of Oroville 1009 Comment
  JEPS113762  Juncus usitatus Lowell Ahart 2007-7-31 14400 B Butte On the south strand of Thermalito Afterbay, about 150 yards north of Highway 162, about 5 1/4 miles west of the intersection of Highway 162 and Highway 70, about 5 3/4 miles (air) west of Oroville 34 Comment
  JEPS114371  Juncus bufonius var. bufonius Lowell Ahart 2008-5-30 14803 Butte Along a small drainage, below the high water line of Lake Oroville, about 300 yards east of the Enterprise Boat Launch Area, about 10 1/2 miles (air) northeast of Oroville 223 Comment
  JEPS114724  Spergularia rubra Lowell Ahart 2008-5-8 14712 Butte Below the high water line of Lake Oroville, about 100 yards south of the poor parking area, about 50 yards east of McCabe Creek, about 3/4 mile southwest of the Enterprise Bridge, about 11 miles (air) east of Oroville 259 Comment
  JEPS114736  Lotus strigosus Lowell Ahart 2008-5-12 14734 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
  JEPS114888  Juncus ensifolius Lowell Ahart 2008-5-30 14801 Butte Along a small drainage, below the high water line of Lake Oroville, about 300 yards east of the Enterprise Boat Launch Area, about 10 1/2 miles (air) northeast of Oroville 223 Comment
  JEPS114922  Albizia julibrissin Lowell Ahart 2008-7-11 15070 Butte On the west side of a small wet area, about 100 yards west of the high gravel road (at turn, before washout), about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville 31 Comment
  JEPS114978  Carex densa Lowell Ahart 2008-6-13 14819 Butte East 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
  JEPS115040  Cyperus erythrorhizos Lowell Ahart 2007-11-3 14555 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
  JEPS115155  Arctostaphylos manzanita subsp. manzanita Lowell Ahart 2009-11-19 16564 Butte On the west side of Ten Mile House Road, just north of Guardians Trail, Upper Bidwell Park, about 1/4 miles west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  JEPS115233  Arctostaphylos viscida subsp. viscida Lowell Ahart, John Dittes 2009-3-20 15517 Butte Open area along the 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
  JEPS115241  Capsella bursa-pastoris Lowell Ahart 2009-4-3 15526 Butte Along margins of the gravel road, east of the Cedar Grove parking area in Lower Bidwell Park, Chico 67 Comment
  JEPS115253  Eleocharis radicans Lowell Ahart 2008-11-4 15403 Butte On the sides of Potter Ravine, in shallow water, below the high water line of Lake Oroville, about one mile north of the large parking area on the north end of Oroville Dam, about 5 miles (air) northeast of Oroville 242 Comment
  JEPS115302  Hypochaeris glabra Lowell Ahart 2009-5-8 15654 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
  JEPS115306  Anthriscus caucalis Lowell Ahart 2009-4-3 15521 Butte On the north side of the gravel road, Cedar Grove parking area in Lower Bidwell Park, Chico 67 Comment
  JEPS115314  Senecio vulgaris Lowell Ahart 2009-4-17 15539 Butte South slope of a ridge, about 150 yards west of Highway 32, near the south boundary, Upper Bidwell Park, about 5 miles (air) northeast of Chico 373 Comment
  JEPS115362  Melissa officinalis Lowell Ahart 2009-7-9 16014 Butte On the east edge of big Chico Creek, about 15 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 181 Comment
  JEPS115598  Rubus discolor Lowell Ahart 2009-5-23 15771 Butte On the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 203 Comment
  JEPS115609  Symphoricarpos albus var. laevigatus Lowell Ahart 2009-5-23 15731 Butte On the west edge of a meadow and the east bank of Big Chico Creek, west 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
  JEPS115669  Gilia capitata subsp. pedemontana Lowell Ahart 2009-5-30 15784 Butte North of a broad open drainage in oak woodland, about 100 yards north of the dirt road which is Ten mile House Road, Upper Bidwell Park, about 1/2mile (air) west Highway 32, about 10 miles northeast of Chico 269 Comment
  JEPS115691  Lathyrus tingitanus Lowell Ahart 2009-6-3 15811 Butte On the north side of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 311 Comment
  JEPS115722  Cirsium vulgare Lowell Ahart 2009-8-3 16262 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
  JEPS115726  Rumex stenophyllus Lowell Ahart 2009-7-4 15996 Butte On the sides of the road, near parking lot 18, Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley 19 Comment
  JEPS115825  Geranium carolinianum Lowell Ahart 2009-4-26 15649 Butte Upper Bidwell Park, on the north side of Ten Mile House Road, about 100 yards west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 461 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
  JEPS115952  Aira caryophyllea Lowell Ahart 2009-4-26 15616 Butte About 10 miles northeast of Chico, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 150 yards southwest of Ten Mile House Road, on south edge of a small open meadow 286 Comment
  JEPS115956  Bromus hordeaceus Lowell Ahart 2009-4-26 15638 Butte On the west side of Guardians Trail, just south of Pine Trail, Upper Bidwell Park, about 3/8 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  JEPS116004  Holcus lanatus Lowell Ahart 2009-6-19 15937 Butte Along 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
  JEPS116097  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
  JEPS116131  Equisetum laevigatum Lowell Ahart 2009-5-15 15685 Butte On the east side of Big Chico Creek, about 50 years west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west Highway 32, about 10 miles northeast of Chico 203 Comment
  JEPS117134  Sanicula tuberosa Lowell Ahart 2010-5-7 16621 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
  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
  JEPS117154  Nemophila pedunculata Lowell Ahart 2010-4-30 16588 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
  JEPS117239  Senecio sylvaticus Lowell Ahart 2010-5-20 16707 Butte On both sides of the Yahi Trail, east if the dirt road, west of Big Chico Creek, Upper Bidwell Park, about 6 miles (air) northeast of Chico 182 Comment
  JEPS117307  Verbena tenuisecta Lowell Ahart 2010-6-1 16765 Butte On damp good soil, irrigated, near sign, at the corner of Centennial Avenue and Chico Canyon Road, Chico 92 Comment
  JEPS117407  Allium amplectens Lowell Ahart 2010-5-23 16729 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
  JEPS117415  Phacelia mutabilis Lowell Ahart 2010-9-28 17269 Butte 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 Philbrook Reservoir 1886 Comment
  JEPS117518  Polygonum bidwelliae Lowell Ahart 2010-5-23 16730 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
  JEPS117521  Hypochaeris glabra Lowell Ahart 2010-5-23 16733 Butte On the west side of Pine trail, about 40 yards west of Highway 32, about 9 miles (air) northeast of Chico 478 Comment
  JEPS117533  Ribes roezlii var. roezlii Lowell Ahart 2010-6-12 16790 Butte On the south side of Ten Mile House Road, about 1/4 mile (air) west of Highway 32, about 9 miles (air) northeast of Chico 376 Comment
  JEPS117541  Lythrum hyssopifolia Lowell Ahart 2010-6-9 16780 Butte On the east side of vernal pool full of dodder, about 30 yards south of the poor dirt road, about 60 yards west of the fence, about 1/4 mile east of Cherokee Road, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville 392 Comment
  JEPS117727  Isoetes nuttallii Lowell Ahart 2010-5-14 16655 Butte In the tracks of an old road, 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
  JEPS118036  Polygonum arenastrum Lowell Ahart 2011-6-3 17364 Butte Wood chipped planter area between Bidwell Mansion parking area and Gateway Science Museum, Chico 60 Comment
  JEPS118052  Galium trifidum var. pacificum Lowell Ahart 2011-8-23 17651 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
  JEPS118329  Linanthus filipes Lowell Ahart 2011-4-28 17332 Butte Along trail in the Disc Golf Area, about 130 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 398 Comment
  JEPS118349  Juncus laccatus Lowell Ahart 2011-8-19 17641 Butte Along the wet road gutter, on the south side of a good forest road, about 1/2 mile north of the Lost Creed Reservoir Dam, about 4 1/2 miles (air0 north of Clipper Mills 1266 Comment
  JEPS119537  Salix gooddingii Lowell Ahart 2012-4-20 17893 Butte About 100 yards south of the intersection of South Rim Trail and and Ten Mile House Road, about 5/8 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  JEPS119545  Hedera helix Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17861 Butte East of the Deer Pen, south of Table 12, Lower Bidwell Park, Chico. Comment
  JEPS119557  Arctostaphylos mewukka subsp. mewukka Lowell Ahart 2012-2-22 17751 Butte On the south side of Ten Mile House Road, about 1/2 miles west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  JEPS119570  Alnus rhombifolia Lowell Ahart 2012-2-22 17741 Butte About 100 yards of Ten Mile House Road, about 3/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  JEPS119607  Salix lasiolepis Lowell Ahart 2012-4-9 17831 Butte West of South Rim Trail, south part of Upper Bidwell Park, about 2 miles (air) northeast of Chico. Comment
  JEPS119679  Orobanche uniflora Lowell Ahart 2012-5-4 17987 Butte About 1 1/4 miles northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  JEPS119683  Limnanthes douglasii subsp. rosea Lowell Ahart 2012-5-2 17966 Butte About 30 yards west of the Easter Cross Parking Lot, Upper Bidwell Park, about 1 mile east of Chico. Comment
  JEPS119694  Trifolium depauperatum var. amplectens Lowell Ahart 2012-5-2 17949 Butte West of the Government Pole Line, Upper Bidwell Park, about 1 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
  JEPS119743  Plantago erecta Lowell Ahart 2012-3-23 17778 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
  JEPS119751  Morus alba Lowell Ahart 2012-5-17 18088 Butte On the south edge of Big Chico Creek, east of the Deer Pen, between Table 12 & 13, Lower Bidwell Park, Chico. Comment
  JEPS119768  Trifolium bifidum var. bifidum Lowell Ahart 2012-5-12 18042 Butte On the grassy sides of Guardian Trail, about 300 yards north of Humboldt Trail, about 1/8 mile west of Highway 32, south part of Upper Bidwell Park, about 8 miles (air) northeast of Chico. Comment
  JEPS119800  Wyethia angustifolia Lowell Ahart 2012-5-20 18090 Butte On the east side of the Humboldt Trail, northeast of the Disc Golf Course, southeast part of Upper Bidwell Park, northeast of Chico. Comment
  JEPS119839  Nemophila heterophylla Lowell Ahart 2012-3-23 17783 Butte On the sides of the trail down to Big Chico Creek, about 50 yards west of Ten Mile House Road, about 3/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  JEPS119859  Festuca arundinacea Lowell Ahart, Susan Bazell, Josephine Guardino 2012-5-31 18117 Butte On the north side of the paved park road (Peterson Drive) about 300 yards west of the gate, Lower Bidwell Park, Chico. Comment
  JEPS119860  Elymus glaucus subsp. glaucus Lowell Ahart, Susan Bazell, Josephine Guardino 2012-5-31 18122 Butte 40 yards north of the paved park road (Peterson Drive) about 700 yards west of the gate, northwest of the parking area, Lower Bidwell Park, Chico. Comment
  JEPS119921  Saponaria officinalis Lowell Ahart 2012-10-20 18497 Butte On the south side of Big Chico Creek, about 50 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  JEPS119941  Persicaria punctata Lowell Ahart 2012-9-28 18461 Butte Just east of the east end of Sycamore Pool in Big Chico Creek, Lower Bidwell Park, Chico. Comment
  JEPS119953 Image available Lythrum salicaria Lowell Ahart 2012-8-22 18422 Butte About 1/4 mile west of Larking Road, about 2 miles (air) southwest of the Oroville Airport. Comment
  JEPS120025  Cyperus flavescens Lowell Ahart 2012-10-20 18503 Butte On the south side of Big Chico Creek, about 100 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  JEPS120037  Echinochloa colona Lowell Ahart 2012-9-28 18460 Butte Just east of the east end of Sycamore Pool in Big Chico Creek, Lower Bidwell Park, Chico. Comment
  JEPS120057  Prunus cerasifera Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18011 Butte 20 yards north 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
  JEPS120070  Ligustrum sinense Lowell Ahart 2012-6-21 18208 Butte On the south bank of Big Chico Creek, about 200 yards east of the dam at Sycamore Pool, Lower Bidwell Park, Chico. Comment
  JEPS120109  Carex subfusca Lowell Ahart 2012-6-28 18242 Butte On the north side of Big Chico Creek, east of Sycamore Pool, Lower Bidwell Park, Chico. Comment
  JEPS120169  Woodwardia fimbriata Lowell Ahart 2012-6-21 18207 Butte On the south bank of Big Chico Creek, about 200 yards east of the dam at Sycamore Pool, Lower Bidwell Park, Chico. Comment
  JEPS120581  Mentha arvensis Lowell Ahart 2013-10-19 19142 Butte Along the west side of the Sacramento River, about 300 yards north of the bridge, west of Butte City Comment
  JEPS120596  Dysphania ambrosioides Lowell Ahart 2013-11-17 19266 Butte McCabe Creek, below the high water line of Lake Oroville, about 5/8 mile southwest of the enterprise Bridge across Lake Oroville. Comment
  JEPS120655  Limosella acaulis Lowell Ahart 2013-10-26 19218 Butte On the south side of Philbrook Creek, below the high water line (strand) of Philbrook Reservoir. 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
  JEPS120938  Zeltnera muehlenbergii Lowell Ahart 2013-5-23 18704 Butte About 1/2 mile SE of the Honcut Cemetery, about 3.25 air miles NE of Honcut. Comment
  JEPS121930  Juncus orthophyllus Lowell Ahart 2014-7-16 19692 Butte About 30 yards east of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  JEPS121950  Glyceria borealis Lowell Ahart 2014-7-7 19585 Butte In the bog, Coon Hollow, about 2 miles (air) north of Philbrook Reservoir. Comment
  JEPS121977  Poa palustris Lowell Ahart 2014-7-10 19609 Butte About 100 yards southwest of Memorial Spring and the Skyway, about a mile southwest of the intersection of Humbug Road and Philbrook Road, about 2 1/2 miles (air) northwest of Philbrook Reservoir. Comment
  JEPS121982  Senecio sylvaticus Lowell Ahart 2014-7-7 19556 Butte About 20 yards east of the Skyway, about one-mile north of Stirling City. Comment
  JEPS121991  Bistorta bistortoides Lowell Ahart 2014-7-13 19664 Butte About 100 yards southeast of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  JEPS122006  Acmispon argophyllus var. fremontii Lowell Ahart 2014-5-13 19460 Butte Below the high water line of Lake Oroville, above the old paved road, about 150 yards west of the Enterprise Boat Ramp, about 11 miles (air) east of Oroville. Comment
  JEPS122066  Platanthera dilatata var. leucostachys Lowell Ahart 2014-7-13 19644 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir Comment
  JEPS122073  Lilium pardalinum subsp. shastense Lowell Ahart 2014-7-13 19662 Butte About 100 yards southeast of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir Comment
  JEPS122141  Bulbostylis capillaris Lowell Ahart 2014-5-2 19426 Butte About one mile (air) northwest of the improved Parking Area and Cherokee Road, North Table Mountain, about 8 miles (air) north of Oroville. Comment
  JEPS122153  Trifolium willdenovii Lowell Ahart 2014-5-2 19429 -A Butte About one mile northwest of Parking Area on the west side of Cherokee Road, about 8 miles (air) north of Oroville. (west of deep canyon, south of willow tops, extreme distance top of lone oak tree, north of deep drainage, fence, fence sigh, northwest top of Digger Pine). Comment
  JEPS122235  Juncus leiospermus var. leiospermus Lowell Ahart 2014-4-20 19381 Butte About 1/4 mile northwest of the parking area on the west side of Cherokee Road, about 7 miles (air) north of Oroville. Comment
  JEPS122247  Euphorbia ocellata subsp. ocellata Lowell Ahart 2014-9-23 19878 Butte About 30 yards northeast of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. Comment
  JEPS122255  Lindernia dubia var. anagallidea Lowell Ahart 2014-9-23 19868 Butte On the northeast part of Horseshoe Lake, about 100 yards northeast of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. Comment
  JEPS122288  Erigeron petrophilus var. sierrensis Lowell Ahart 2014-8-24 19732 Butte On the south side of the road, about 50 yards west of the Woodleaf Creek, about 1/2 mile southwest of Forbestown Reservoir Dam, about 4 miles (air) northeast of Forbestown. Comment
  JEPS122340  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. Comment
  JEPS123830  Downingia insignis Lowell Ahart 2015-4-24 20058 Butte About 1 1/4 miles north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. Comment
  JEPS123882  Herniaria hirsuta var. hirsuta Lowell Ahart 2015-5-5 20145 Butte Oroville Wildlife Area, about 3/4 mile south of the Headquarters, about 3/4 mile south of Thermalito. Comment
  JEPS123886  Ranunculus pusillus Lowell Ahart 2015-5-5 20139 Butte About 400 yards south of Larkin Road Boat Lunch Area, near the Thermalito Afterbay, about 1 miles southwest of the Oroville Airport, about 6 miles (air) southwest of Oroville Comment
  JEPS123987  Castilleja lacera Lowell Ahart 2015-4-18 20048 Butte About 1 1/2 miles southwest of the intersection of Robinson Mill Road and Forbestown Road, about 12 miles (air) southeast of Oroville. Comment
  JEPS124110  Trifolium variegatum var. variegatum Lowell Ahart 2015-6-6 20199 Butte On North Table Mountain, about 7 miles (air) north of Oroville. Comment
  JEPS124129  Elatine ambigua Lowell Ahart 2015-10-1 20534 Butte About 1/4 mile east of Riceton Highway, about 2 1/4 miles (air) north of Biggs. Comment
  JEPS124149  Stephanomeria paniculata Lowell Ahart 2015-11-7 20623 Butte About 1/8 mile south of the end of Alternate 40, strand of Lake Oroville, Dark Canyon, about 4 miles (air) south of Highway 70, about 8 miles (air) southeast of Paradise. Comment
  JEPS124328  Eleocharis radicans Lowell Ahart 2015-10-20 20567 Butte About half way of and east of One Mile Pond, about 6 miles (air) east of Biggs. Comment
  JEPS124348  Gnaphalium palustre Lowell Ahart 2015-10-26 20601 -A Butte About 1 mile (air) of southeast of Kunckle Reservoir, about 5 miles (air) southeast of Paradise. Comment
  JEPS124403  Cynosurus echinatus Lowell Ahart 2015-6-16 20226 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
  JEPS127002  Navarretia pubescens Lowell Ahart 2016-5-24 20847 Butte About 200 yards west of Loma Rica Road, about 300 yards southwest of the intersection of Loma Rica Road and La Porte Road, about 3 1/2 miles (air) northeast of Honcut. Comment
  JEPS127006  Sidalcea diploscypha Lowell Ahart 2016-5-24 20845 Butte About 200 yards west of Loma Rica Road, about 250 yards southwest of the intersection of Loma Rica Road and La Porte Road, about 3 1/2 miles (air) northeast of Honcut. Comment
  JEPS127014  Heterocodon rariflorum Lowell Ahart 2016-5-24 20858 Butte About 150 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. Comment
  JEPS127062  Lomatium dasycarpum subsp. tomentosum Lowell Ahart 2016-5-14 20824 Butte On the east side of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. Comment
  JEPS127066  Anagallis minima Lowell Ahart 2016-5-15 20832 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. Comment
  JEPS127073  Galium parisiense Lowell Ahart 2016-5-30 20901 Butte Peter Ahart Ranch, about 2 1/2 miles north and 1/4 mile east of Honcut, about 12 miles (air) south of Oroville. Comment
  JEPS127089  Plagiobothrys Lowell Ahart 2016-4-14 20742 Butte North of Larkin Road, about 6 miles (air) southwest of Oroville. Comment
  JEPS127227  Polypogon maritimus Lowell Ahart 2016-5-30 20886 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 1/8 miles east of Honcut, about 12 miles (air) southeast of Oroville. Comment
  JEPS128618  Leptochloa fusca subsp. uninervia Lowell Ahart 2017-8-8 21655 Butte Waste area on east side of Palermo Honcut Highway, south of intersection of Palermo Honcut Highway and Palermo Road, in Palermo. Comment
  JEPS87372  Polygonum parryi Lowell Ahart 1993-6-20 6985 Butte about 1 air mi nw Lost Creek Reservoir Dam; Mooreville Ridge, Jackass Flat 1158 Comment
  JEPS87443  Bulbostylis capillaris Lowell Ahart 1993-7-29 7117 Butte 2.5 mi ne Bald Mountain (about 6.5 mi ne of Stirling City) 1584 Comment
  JEPS87458  Lilaea scilloides Lowell Ahart 1993-5-17 6948 Butte about 1.5 mi n. & 3 mi. e. Honcut (on w. side of Dunstone Road, about 12 mi s.e. of Oroville) 60 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
  JEPS87496  Amsinckia lycopsoides Lowell Ahart 1993-5-13 6935 Butte 1 3/4 mi n and 1/8 mi e of Honcut (about 12 mi s of Oroville); Peter Ahart Ranch 30 Comment
  JEPS87534  Ageratina occidentalis Lowell Ahart 1993-9-8 7167 Butte on top of ridge about 1/2 mi e Snow Mountain; e of Snow Mountain 2103 Comment
  JEPS87781  Malva parviflora Lowell Ahart 1994-3-30 7277 Butte about 7 mi n Oroville (garden area at ne corner of Oregon City School, Oregon City); Oregon City 365 Comment
  JEPS93813  Brodiaea sierrae Lowell Ahart 1998-7-10 8036 Butte about 1 1/2 mi n and 2 3/4 mi e of Honcut (on the se side of North Honcut Creek, Peter Ahart Ranch, about 12 mi se of Oroville); North Honcut Creek, Peter Ahart Ranch 54 Comment
  JEPS93839  Brodiaea minor Lowell Ahart 1998-7-1 8026 Butte about 7 air mi n of Oroville (about 5/8 mi n of the cow chute along Cherokee Road, about 100 yards s of a east west fence, North Table Mountain); North Table Mountain, Cherokee Road 403 Comment
  JEPS94431  Leontodon saxatilis subsp. longirostris Lowell Ahart 1997-10-20 7923 Butte 3 air mi nw of Sly Creek Reservoir Dam (on w side of sharp bend in South Fork of Feather River, about 1/4 mi n of the bridge across the river, about 3/4 mi n of Golden Trout Crossing); South Fork of the Feather River 914 Comment
  JEPS94568  Carex amplifolia Lowell Ahart 1997-7-11 7749 Butte se Cold Creek (along small stream from springs, n of dirt road, about 2 air mi sw of Bald Mt., about 9 mi by road e (or about 2 air mi ne) of Stirling City) 1219 Comment
  JEPS94666  Erodium moschatum Lowell Ahart 1998-6-9 8002 Butte about 7 air mi n Oroville (about 5/8 mi nw of the lone oak tree, nw of the cow chute along Cherokee Road); North Table Mountain 396 Comment
  JEPS94767  Cyperus squarrosus Lowell Ahart 1998-7-18 8037 Butte about 7 air mi n of Oroville (about 1/2 mi n of the ione oak tree, about 1/2 mi n of the cow chute along Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 408 Comment
  JEPS95141  Piptatherum miliaceum Lowell Ahart 1997-5-18 7739 Butte Clear Creek, s of the hay barn, Butte Junior College Clear Creek; , Butte Junior College 76 Comment
  JEPS95528  Polygonum californicum Lowell Ahart 1994-10-8 7549 Butte about 1 mi E of Chico (along North Rim Trail, near the double power lines, Bidwell Park) 152 Comment
  JEPS95869  Plagiobothrys stipitatus var. micranthus Lowell Ahart 1999-5-21 8075 Butte on the east side of Evans Reimer Road; about 7/8 mile east of Pennington Road; about 5 miles (air) southwest of Gridley 21 Comment
  JEPS95950  Lipocarpha aristulata Lowell Ahart 1999-8-13 8146 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
  JEPS95987  Poa annua Lowell Ahart 1999-10-28 8311 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
  JEPS98280  Scirpus diffusus Lowell Ahart 2000-6-29 8547 Butte By the road culvert, on the northwest side 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
  JEPS98286  Moenchia erecta subsp. erecta Lowell Ahart 2000-5-9 8332 Butte 10 air miles NE of Oroville (S side of the dirt road, S side of the Oak Grove Cemetery, about 1/2 mi SE of Hurleton) 548 Comment
  JEPS98308  Lotus purshianus var. purshianus Lowell Ahart 2000-6-27 8525 Butte 12 air miles NE of Oroville (N part of Big Bald Rock, 100 yds S and W of the N and E forest line, 3 air miles E of Madrone Lake) 963 Comment
  JEPS98373  Rhynchospora capitellata Lowell Ahart 2000-7-11 8572 Butte 4 air mi N[?]E of Feather Falls (N side of Lumpkin Ridge Rd, upper W branch of Know-nothing Crk, 1 mi SW of int of Lumpkin R Rd, rd to Fall River, and the County Rd) 1219 Comment
  JEPS98375  Eleocharis acicularis Lowell Ahart 2000-10-21 8711 Butte 2 1/4 air miles N of Biggs (100 ft N of Hamilton Road, about 1/8 mi E of Riceton Road, Rice Experiment Station) 30 Comment
  JEPS98442  Eleocharis quinqueflora Lowell Ahart 2000-5-27 8405 Butte 7 air miles N of Oroville (North Table Mounain, W side of Cherokee Road, S margin of boggy area in a large spring-like area, W of the cow chute, W of the lone oak tree) 403 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
  JEPS98470  Sanguisorba annua Lowell Ahart 2000-6-29 8544 Butte 5 air miles E of Magalia (W side of Concow Road at Flea Meadow, about 1/2 mi W of Flea Mountain, 3 1/2 air miles N of Concow Reservoir) 1036 Comment
  JEPS98476  Scutellaria californica Lowell Ahart 2000-5-31 8412 Butte 3 mi SE of Paradise (E of where Kunkle Creek enters Lake Oroville, E of Kunkle Power House) 304 Comment
  JEPS98489  Juncus orthophyllus Lowell Ahart 2000-6-29 8536 Butte 5 air miles E of Magalia (E side of Flea Meadow, 1/2 mi W of Flea Mountain, 3 1/2 air miles N of Concow Reservoir) 1036 Comment
  JEPS98491  Juncus orthophyllus Lowell Ahart 2000-6-17 8484 Butte 2 mi S of Paradise (about 1/4 mi NE of Kunkle Reservoir, E of the Pentz Magalia Road) 548 Comment
  JEPS98519 Image available Lythrum salicaria Lowell Ahart 2000-7-2 8551 Butte Wet area on the east side of Highway 70, a little north of Garden Drive, north of Thermalito, about 1 1/2 miles north of Oroville. 73 Comment
  JEPS98527  Juncus articulatus Lowell Ahart 2000-7-11 8567 Butte sides of dirt rd, 100 yds N of Lumpkin Ridge Rd, upper W branch of Know-nothing Creek, 1 mi SW of int of Lumpkin Ridge Rd, rd to Fall River, and the County Rd, 4 air mi NE of Feather Falls 1219 Comment
  JEPS98535  Aristida dichotoma Lowell Ahart 2000-8-5 8624 Butte Above seeps on bare granite, on the north side of Bean Creek Road, about 1/4 mile southeast of Little Bald Rock, about 4 miles (air) northeast of Madrone Lake, about 13 miles (air) northeast of Oroville. 1066 Comment
  JEPS98558  Brachypodium distachyon Lowell Ahart 2000-5-16 8359 Butte 5 air miles SW of Oroville (Thermalito Afterbay, N side of access road to boat ramp, W of Larkin Road, 1 1/4 mi S of Oroville Airport) 42 Comment
  JEPS98590  Juncus bufonius var. bufonius Lowell Ahart 2000-6-29 8533 Butte 1/2 mi W of Flea Mountain; ; W side Concow Rd at Flea Meadow, 3 1/2 air mi N of Concow Reservoir, 5 air mi E of Magalia 1036 Comment
  JEPS98604  Eleocharis macrostachya Lowell Ahart 2000-6-17 8481 Butte In seeps, ca 1/4 mile NE of Kunkle Reservoir, E of Pentz Magalia Road, ca 2 miles S of Paradise. 548 Comment
  JEPS98687  Aristida dichotoma Lowell Ahart 2000-8-5 8624 Butte Above seeps on bare granite, on the north side of Bean Creek Road, about 1/4 mile southeast of Little Bald Rock, about 4 miles (air) northeast of Madrone Lake, about 13 miles (air) northeast of Oroville. 1066 Comment
  JEPS98698  Sesbania punicea Lowell Ahart 2000-8-23 8660 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
  POM365944  Festuca californica var. californica L. Ahart, P. Ahart 1984-6-10 4701 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown. 700 Comment
  RSA0028178  Geranium carolinianum L. Ahart 2009-4-26 15649 Butte Upper Bidwell Park: on N side of Ten Mile House Road, about 100 yards W of the intersection of Hwy 32 and Ten Mile House Road, about 10 miles NE of Chico. 462 Comment
  RSA0035339  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. 62 Comment
  RSA0036029  Ranunculus arvensis Lowell A. Ahart 2012-5-2 17961 Butte About 30 yards northeast of the Easter Cross Parking Lot, Upper Bidwell Park, about 1 mile east of Chico. 91 Comment
  RSA0036432  Trifolium bifidum var. bifidum Lowell A. Ahart 2012-5-12 18042 Butte On the Guardian Trail, about 300 yards north of Humboldt Trail, about 1/8 mile west of Highway 32, south part of Upper Bidwell Park, about 8 miles (air) northeast of Chico. 362 Comment
  RSA0036436  Betula Lowell A. Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18008 Butte West of the horse path, on the north side of the paved park road, southwest of the old walnut orchard, south of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. 76 Comment
  RSA0036989  Bidens tripartita Lowell A. Ahart 2013-6-18 18802 Butte Drained bottom of a duck field, about 20 yards east of Parking Lot 16, Gray Lodge Wildlife Management Area, about 7 miles (air) southwest of Gridley. 19 Comment
  RSA0045628  Epilobium torreyi Lowell A. Ahart 2012-5-31 18125 Butte About half way between Salmon Hole trail and Parking Area O, Upper Bidwell Park. 122 Comment
  RSA0089740  Amsinckia lycopsoides L. Ahart 2012-4-20 17889 Butte South 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 air miles northeast of Chico, south part of Upper Bidwell Park. 203 Comment
  RSA0105592  Cuscuta occidentalis Lowell Ahart 2013-7-16 18838 Butte Northwest of a large wash, about 1/2 mile southeast of the Honcut Cemetery, about 3 1/4 miles (air) northeast of Honcut. 54 Comment
  RSA0108970  Tuberaria guttata Lowell A. Ahart 2015-4-18 20044 Butte On the east side of Swedes Flat Road, about 0.5 mile southwest of Dutch ravine, about 8 miles (air) southeast of Oroville. 385 Comment
  RSA0111937  Ranunculus pusillus Lowell A. Ahart 2015-5-5 20139 Butte About 30 yards north of Larkin Road, about 400 yards south of Larkin Road Boat Launch Area, near the Thermalito Afterbay, about 1 mile southwest of the Oroville Airport, about 6 miles (air) southwest of Oroville. 43 Comment
  RSA0112643  Holocarpha virgata subsp. virgata Lowell Ahart 2013-9-5 19022 Butte On the west side of La Porte Road, about 1/4 mile southwest of Dunstone Drive, about 2 1/3 miles (air) northeast of Honcut. 40 Comment
  RSA0118749  Eriogonum umbellatum var. ahartii Lowell Ahart 2014-8-24 19730 Butte On the south side of the road, about 50 yards west of Woodleaf Creek, about 1/2 mile southwest of the Forbestown Reservoir Dam, about 4 miles (air) northeast of Forbestown. 611 Comment
  RSA0118939  Lessingia nemaclada Lowell Ahart 2013-11-13 19253 Butte Between the road and the large cutbank, about 50 yards southeast of the Ponderosa Dam spillway. 300 Comment
  RSA0119045  Lapsana communis Lowell Ahart 2014-7-7 19564 Butte About 5 yards east of the Skyway, about one-mile north of Stirling City. 1142 Comment
  RSA0119331  Carex vesicaria Lowell A. Ahart 2014-7-7 19577 Butte Small snow lake, north of the bog, Coon Hollow, about 2 miles (air) north of Philbrook Reservoir. 1691 Comment
  RSA403523  Melica harfordii L. Ahart, P. Ahart 1984-6-10 4713 Butte About 2 miles SW of Forbestown Diversion Dam, NE of Forbestown. 700 Comment
  RSA699613  Chloris virgata L. Ahart 2004-6-28 11147 Butte on the east side of Lone Tree Road, about 1/2 mile north of Palermo Road, about 1 1/2 miles (air) northwest of Palermo, about 5 miles (air) south of Oroville. 44 Comment
  RSA699700  Campanula prenanthoides L. Ahart 2004-7-11 11247 Butte On the southeast edge of Paradise Lake, about 3/4 mi. northeast of the picnic area, about 1 mi. northeast fo Paradise Dam, about 4 mi. (air) southwest of Stirling City. Yellow Pine Forest. 815 Comment
  RSA700218  Phleum pratense L. Ahart 2004-6-22 11124 Butte on the north side of the Hupp Coutolenc Road, about 1/2 mile north of Paradise lake, about 1/2 mile northeast of De Sabla Reservior, about 4 miles (air) southwest of Stirling City. 822 Comment
  RSA712999  Amsinckia intermedia L. Ahart 2006-4-23 12532 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
  RSA715579  Alopecurus carolinianus L. Ahart 2005-4-14 11716 Butte Drain ditch, 200 feet east of the railroad tracks, north of Spruce Street, Gridley. 28 Comment
  RSA715963  Vulpia myuros var. hirsuta L. Ahart 2005-4-14 11708 Butte Gridley. At the base of the railroad, east side of the railroad tracks, south of the railroad bridge, north of Spruce street. 28 Comment
  RSA718074  Gayophytum racemosum L. Ahart 2006-7-16 13005 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. 1525 Comment
  RSA718093  Luzula comosa L. Ahart 2006-7-16 12970 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
  RSA718331  Galium parisiense L. Ahart 2006-6-9 12651 Butte On the E side of Bardees Bar Road. S of the small stream. About 1/4 mile SW of the poor bridge across the North Fork of the Feather River at Bardees Bar. About 2.75 miles (air) SW of Pulga. 404 Comment
  RSA718394  Phacelia purpusii L. Ahart 2006-7-16 12962 Butte Near the open mudflow area, on the S side (road edge) of Humboldt Road, about 1.5 miles (air) SW of Butte Meadows. 1436 Comment
  RSA724809  Aster alpigenus var. andersonii L. Ahart 2006-8-15 13182 Butte 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 1570 Comment
  RSA724823  Aster occidentalis var. occidentalis L. Ahart 2006-9-9 13245 Butte West side of a large meadow with bogs, about 75 yards south of the cabin, about 3/4 air mile northwest of Jonesville, about 5 air miles northeast of Butte Meadows 1561 Comment
  RSA725032  Polygonum punctatum L. Ahart 2006-8-29 13237 Butte N of the canal and parking lot 16, W of the gravel road, Gray Lodge Wildlife area (Gray Lodge Waterflow Management area). 20 Comment
  RSA725282  Carex jonesii L. Ahart 2006-8-15 13175 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
  RSA725284  Juncus howellii L. Ahart 2006-8-15 13178 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
  RSA726807  Sanicula L. Ahart 2007-5-29 13950 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
  RSA754373  Phoradendron macrophyllum L. Ahart 2009-8-3 16255 Butte E side of Ten Mile House Road, Upper Bidwell Park, about 3/4 miles (air) W of Hwy 32, about 10 miles NE of Chico. 210 Comment
  RSA754527  Grindelia hirsutula var. davyi L. Ahart 2009-8-3 16263 Butte E side of Big Chico Creek, about 30 yards S of the gate, in the middle of Ten Mile House Road, Upper Bidwell park, about 3/4 air miles W of Highway 32, about 10 miles NE of Chico. 270 Comment
  RSA754852  Pellaea andromedifolia L. Ahart 2009-5-30 15781 Butte About 60-100 yards north of the dirt road that is Ten Mile House Road, Upper Bidwell Park, about 1/2 air mile W of Highway 32, about 10 miles NE of Chico. 269 Comment
  RSA754854  Keckiella breviflora subsp. glabrisepala L. Ahart 2009-4-26 15610 Butte Upper Bidwell Park: on N side of Ten Mile House Road, about 100 yards W of the intersection of Hwy 32 and Ten Mile House Road, about 10 miles NE of Chico. 462 Comment
  RSA755268  Euphorbia spathulata L. Ahart 2009-5-15 15701 Butte About 20 yards E of the dirt road that is Ten Mile House Road, Upper Bidwell Park, about 3/4 air mile W of Highway 32, about 10 miles NE of Chico. 234 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
  RSA755415  Navarretia filicaulis L. Ahart 2009-6-30 15967 Butte Along the Guardian Rock Trail, about 1/4 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
  RSA755637  Myosotis discolor L. Ahart 2009-5-15 15717 Butte On the east bank of Big Chico Creek, on the west side of Ten Mile House Road, Upper Bidwell Park, about 3/4 air mile west of Highway 32, about 10 miles northeast of Chico. 234 Comment
  RSA755647  Triphysaria eriantha subsp. eriantha L. Ahart, John Dittes 2009-3-20 15511 Butte 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
  RSA755772  Chamaesyce ocellata subsp. ocellata L. Ahart 2009-8-15 16284 Butte Road edges, Peter Ahart Ranch, about 1.5 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 34 Comment
  RSA768993  Lepidium strictum L. Ahart 2010-4-5 16573 Butte Vacant lot, about 50 feet west of Virginia Street, about 20 feet south of Spruce Street in Gridley. 29 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
  RSA769682  Pentagramma triangularis subsp. triangularis L. Ahart 2009-4-22 15564 Butte South side of Guardians Trail, about 50 yards west of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 382 Comment
  RSA770102  Conyza canadensis L. Ahart 2008-11-4 15396 Butte Below high water line of Lake Oroville, about one mile southeast of the large parking area on the north end of Oroville Dam, about 5 air miles northeast of Oroville. 264 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
  RSA774146  Madia glomerata L. Ahart 2010-9-21 17223 Butte Open area along poor dirt road, about 1 air mile NE of Jones Meadow, about 2.5 air miles SE of Philbrook Reservoir 1900 Comment
  RSA795765  Lomatium macrocarpum L. Ahart 2012-4-20 17897 Butte West side of South Rim Trail, animal trail north of Bloody Pin Trail, about 5/8 miles west of Highway 32, about 7 3/8 miles northeast of Chico, south part of Upper Bidwell Park. 256 Comment
  SBBG126078  Garrya fremontii L. Ahart 2012-3-2 17759 A Butte ca 200 yards N of Ten Mile House Rd, ca 200 yards W of Hwy 32, ca 9 mi NE of Chico 422 Comment
  SBBG128798  Trifolium jokerstii L. Ahart 2012-5-4 17991 Butte sides of a drainage, ca. 0.5 mi SW of the lone pine tree on the rim of Beatson Hollow, ca. 1.25 mi NW of the iron gate on the N side of Cherokee Rd, N Table Mtn, ca. 7 mi (air) N of Oroville 302 Comment
  SD122568  Cryptantha flaccida Lowell Ahart 1984-6-8 4668 Butte At the Ponderosa Dam, ca. 2 miles northwest of Forbestown 370 Comment
  SD147485  Collinsia tinctoria Lowell Ahart 1980-6-19 2383 Butte Along Swedes Flat Road, near Bangor 320 Comment
  SD149201  Hordeum brachyantherum Lowell Ahart 1981-5-24 2836 Butte Peter Ahart Ranch, ca. 1.5 mi. N and 1/15 mi. E of Honcut, Valley Grassland 49 Comment
  SEINET10565911  Bromus japonicus Lowell Ahart, John Dittes; Josephine Guardino; Steve Green 2003-5-27 Ahart 10222 Butte T22N R2E, section not surveyed. Normal size plants, on damp dark soil, springy area 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, Chico. Common, inconspicuous. Foothill Woodland. 122 Comment
  SEINET10920583 Image available Pellaea andromedifolia Lowell Ahart 2007-5-29 Ahart 13941 Butte Near the SE edge of Bald Rock Dome, on the W side of the Dome Trail, trail leads to the Middle Fork of the Feather River, about 1 1/2 mi by the trail from the trailhead, which is 3/10 mi E of Bean Creek Road, about 2 mi (air) NE of Big Bald Rock, about 16 mi (air) NE of Oroville. 637 Comment
  SEINET13711198  Moenchia erecta Lowell William Ahart, Lowell William Ahart 2000-1 8332 Butte 10 Air Mi. NE of Oroville at Oak Grove Cemetery (T19N, R5E, sec 23, Ctr.) 1800 Ft. 549 Comment
  SEINET13711401  Fimbristylis autumnalis Lowell William Ahart, Lowell William Ahart 1999-1 8145 Butte 12 Air Mi SW of Chico, 2 Mi SE Ordbend Comment
  SEINET13711409  Lythrum hyssopifolia Lowell William Ahart, Lowell William Ahart 1999-1 8169 Butte 12 Air Mi SW of Chico, 2 Mi SE of Ordbend, Sacramento River Comment
  SEINET13711415  Veronica anagallis-aquatica Lowell William Ahart, Lowell William Ahart 1999-1 8129 Butte 12 Air Mi SW Chico, 2 Mi SE Ordbend, Sacramento River Comment
  SEINET260315  Hesperevax caulescens Lowell Ahart 1988-4-29 5964 Butte Honcut Flume on the Joie Osgood Ranch ca 2 mi N and 2.5 mi E of Honcut 76 Comment
  UC1562368  Eriodictyon californicum Lowell Ahart 1990-4-28 6468 Butte in the borrow area about 4/10 mi w of Pacific Heights Road about 4 1/2 mi sw Oroville (1/4 mi s of the Feather River); s of the Feather River, sw of Oroville 30 Comment
  UC1562374  Polygonum aviculare subsp. neglectum Lowell Ahart 1990-7-1 6532 Butte sw Forbestown Generator (on s side of reservoir); Forbestown Reservoir 487 Comment
  UC1562395  Azolla filiculoides Lowell Ahart 1990-5-20 6473 Butte ca. 4 1/2 mi sw of Oroville (ca. 1/4 mi s of Feather River, ca. 4/10 mi w of Pacific Heights Rd.) 30 Comment
  UC1562419  Uropappus lindleyi Lowell Ahart 1990-6-16 6508 Butte on the s side Forbestown Reservoir (just s of the Forbestown Generator) 487 Comment
  UC1562433  Gamochaeta argyrinea Lowell Ahart 1990-5-25 6481 Butte below high-water line Lake Oroville (e of the Enterprise boat launch area, about 1/8 mi nw of the Enterprise Bridge across Lake Oroville) 259 Comment
  UC1562435 Image available Hoita macrostachya Lowell Ahart 1990-7-1 6534 Butte about 2 mi ne Forbestown (along the road to the Forbestown Reservoir) 822 Comment
  UC1562445  Lathyrus latifolius Lowell Ahart 1990-6-1 6506 Butte about 2 air mi se Jarbo Gap (near the Poe Power House, on the e side of the Feather River) 274 Comment
  UC1562490  Mimulus cardinalis Lowell Ahart 1990-8-15 6581 Butte about 1/2 mi sw Enterprise Bridge across Lake Oroville; Lake Oroville, McCabe Creek 228 Comment
  UC1563271  Rorippa curvisiliqua Lowell Ahart 1990-10-21 6641 Butte about 1/2 mi w Gold Flat (below the high water line of Lake Oroville, about 1 mi n Nelson Bar Road); w of Gold Flat, Lake Oroville 213 Comment
  UC1586403  Cotoneaster pannosus Lowell Ahart 1991-6-19 6661 Butte along the Dan Beebe Trail in Lake Oroville Recreation Area, between Canyon Drive and Oroville Dam Blvd East, southwest of Orovillle Dam. 213 Comment
  UC1594679  Listera convallarioides Lowell Ahart 1992-6-26 6780 Butte about 1/2 mi nw Merrimac (e side of camp); Rogers Cow Camp 1219 Comment
  UC1594704  Danthonia californica Lowell Ahart 1992-7-21 6801 Butte about 2 air mi ne Philbrook Reservoir (high sides of snow lake on s side of Hollow); Coon Hollow 1737 Comment
  UC1609000  Galium grayanum Lowell Ahart 1993-9-8 7165 Butte on n side of ridge about 1/2 mi e Snow Mountain 2103 Comment
  UC1609006  Streptopus amplexifolius var. americanus Lowell Ahart 1993-9-13 7232 Butte about 1 mi se Butte Meadows (banks of Bolt Creek); Bolt Creek 1325 Comment
  UC1609052  Navarretia divaricata Lowell Ahart 1993-7-29 7125 Butte 6.5 mi ne Stirling City (2.5 mi ne of Bald Mountain, .12 mi n of the Snow Mine, on the e side of an old water ditch for gold mining) 1676 Comment
  UC1609054  Eleocharis bella Lowell Ahart 1993-7-13 7065 Butte 12 mi S of Oroville (bottom of a deep wash, Peter Ahart Ranch, 1 1/2 mi N and 1 mi E of Honcut) 36 Comment
  UC1609061  Galium aparine Lowell Ahart 1993-6-20 6988 Butte about 1 air mi nw Lost Creek Reservoir Dam; Mooreville Ridge, Jackass Flat 1158 Comment
  UC1609221  Hemizonella minima Lowell Ahart 1993-7-29 7114 Butte about 2 1/2 mi ne Bald Mountain (about 6 1/2 air mi ne of Stirling City) 1584 Comment
  UC1609277  Vicia americana var. americana Lowell Ahart 1993-6-20 6977 Butte Camp 18 1158 Comment
  UC1609301  Cirsium arvense Lowell Ahart 1993-9-8 7175 Butte about 1 mi se Snow Mountain (s side of dirt road) 1981 Comment
  UC1609348  Mimulus pulsiferae Lowell Ahart 1993-6-20 6993 Butte about 1 air mi nw Lost Creek Reservoir Dam; Mooreville Ridge, Jackass Flat 1158 Comment
  UC1609366  Glyceria elata Lowell Ahart 1993-7-1 7050 Butte about 0.25 mi w Lost Creek Reservoir (on the n side of the dirt road) 1036 Comment
  UC1609404  Polystichum imbricans subsp. imbricans Lowell Ahart 1993-6-20 6994 Butte ca. 1 air mi nw of Lost Creek Reservoir Dam; Jackass Flat, Mooreville Ridge 1158 Comment
  UC1609456  Medicago lupulina Lowell Ahart 1993-11-1 7274 Butte on s side of Butte City Hwy e Southern Pacific Railroad (w of Riceton Rd, about 3 1/4 mi nw of Biggs); Rice Experiment Station 30 Comment
  UC1609503  Juncus tenuis Lowell Ahart 1993-7-23 7099 Butte ca. 6 (air) mi. n.e. Feather Falls (ca. 100 yds. w. of bridge across Fall River) 1036 Comment
  UC1950043  Arbutus unedo Lowell Ahart, Josephine Guardino, Steve Green 2009-2-20 15490 Butte Near the east side of Cedar Grove, Lower Bidwell Park, Chico 67 Comment
  UC4609251  Poa compressa Lowell Ahart 1993-7-23 7094 Butte ca 6 air mi ne Feather Falls (w side of Fall River, ca 100 yds w of bridge across Fall River) 1036 Comment
  UCD169270  Symphyotrichum ascendens Lowell Ahart; John Dittes 2008-8-25 15293 Butte Pit River, about 1/8 mile east of County Road 91, about 3.8 miles (air) north-northeast of Lookout. 1273 Comment
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Oct 5 2019
  UCD169276  Calycadenia multiglandulosa Lowell 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. 737 Comment
  UCD64139  Digitaria sanguinalis L. Ahart 1982-10-15 3889 Butte On the bottom of North Honcut Creek, ca. 2.7 mi. NE of Honcut. 50 Comment
  UCSC008325  Plantago erecta Lowell Ahart 2012-4-9 17851 Butte North side of South Rim Trail, west of the power lines, Upper Bidwell Park, aout one (air) mile northeast of Chico. 143 Comment
  UCSC010322  Trifolium depauperatum Lowell Ahart 2015-3-27 19981 Butte about 3/8 mile northeast of Coal Canyon Falls, about 1/8 miles northwest of the improved parking area, North Table Mountain, about 8 miles north of Oroville 389 Comment
  CAS-BOT-BC111976  Lipocarpha micrantha Lowell Ahart 1983-9-17 4430 Butte Near Kunkle Res, near Paradise. 600 Comment
  CAS-BOT-BC153212  Diplacus kelloggii Lowell Ahart 1988-3-27 5944 Butte Along Poe Power House Road, about 1/2 mile north-west of the Poe Power House, about 1 1/2 miles south-east of Jarbo Gap 426 Comment
  CAS-BOT-BC175966  Hypericum Lowell Ahart 1977-6-26 s.n. Butte Peter Ahart Ranch, Honcut. Along edge of North Honcut Creek 50 Comment
  CAS-BOT-BC266484  Githopsis diffusa Lowell Ahart 1987-5-12 5651 Butte S of Lumpkin Ridge Road, 1.5 miles NE of Camp 18, about 8 miles NE of Feather Falls 1280 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-BC317345  Lithospermum californicum Lowell Ahart 1982-5-8 4090 Butte Along Bloomer Hill Road, about 1.25 miles W of the Oroville Quincy Highway, about 15 miles NE of Oroville. Section 31. 450 Comment
  CAS-BOT-BC340246  Jensia rammii Lowell Ahart 1983-6-26 4157 Butte Along Ponderosa Way, about 2 1/2 miles east of where Ponderosa Way crosses the East Fork of Canyon Creek, about 15 1/2 miles north-east of Oroville 600 Comment
  CAS-BOT-BC341294  Lagophylla glandulosa Lowell Ahart 1979-5-20 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC349165  Microseris elegans Lowell Ahart 1979-5-21 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  CAS-BOT-BC357589  Pseudognaphalium stramineum Lowell Ahart 1980-5-4 2184 Butte Thermalito 65 Comment
  CAS-BOT-BC365984  Sonchus asper Lowell Ahart 1980-5-4 2156 Butte Thermalito 65 Comment
  CAS-BOT-BC375763  Stephanomeria virgata Lowell Ahart 1981-7-18 2939 Butte 4.5 miles southwest of Oroville 35 Comment
  CAS-BOT-BC388266  Cerastium glomeratum Lowell Ahart 1980-5-4 2181 Butte Thermalito 65 Comment
  CAS-BOT-BC399766  Thalictrum polycarpum Lowell Ahart 1988-4-6 5958 Butte East of North Honcut Creek, on the Joie Osgood Ranch, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville 60 Comment
  CAS-BOT-BC414191  Polygonum aviculare subsp. depressum Lowell Ahart 1976-9-21 s.n. Butte Along the edge of the road 1/8 mile east of Golden Trout Crossing, a bridge across South Fork Feather Riv; about 3 miles west of Sly Creek Reservoir Comment
  CAS-BOT-BC414193  Polygonum aviculare subsp. depressum Lowell Ahart 1986-11-9 5453 Butte About 1/10 mile south of the clay burrow for Oroville Dam, 1/4 mile east of Larkin Road, about 6 miles south-west of Oroville 36 Comment
  CAS-BOT-BC418954  Persicaria lapathifolia Lowell Ahart 1987-10-22 5922 Butte Along Oroville Chico Highway (149), 1/10 mile north-west of Highway 70 76 Comment
  CAS-BOT-BC419319  Persicaria punctata Lowell Ahart 1982-8-22 3746 Butte Along the edge of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 3 miles east of Honcut 50 Comment
  CAS-BOT-BC427954  Crassula tillaea Lowell Ahart 1990-1-17 6407 Butte East of the Enterprise Boat Launch Area, about 1/8 mile north-west of the Enterprise Bridge across Lake Oroville 301 Comment
  CAS-BOT-BC427958  Crassula tillaea Lowell Ahart 1973-4-15 s.n. Butte Sutter Buttes Region. Peter Ahart Ranch, Honcut 150 Comment
  CAS-BOT-BC439754  Claytonia perfoliata Lowell Ahart 1982-4-24 3369 Butte About 3/4 mile south-west of the Myers home, Myers Ranch, Sutter Buttes 50 Comment
  CAS-BOT-BC445584  Echinodorus berteroi Lowell Ahart 1972-7-5 s.n. Butte Peter Ahart Ranch, Honcut. 150 Comment
  CAS-BOT-BC45072  Anaphalis margaritacea Lowell Ahart 1988-7-31 6143 Butte The E side of the W branch of the Feather River, N of the bridge, about 4 road miles N of Stirling City 914 Comment
  CAS-BOT-BC472969  Allium membranaceum Lowell Ahart 1984-6-10 4698 Butte Along road to Forbestown Diversion Dam; near a small stream, along the road about 2 miles southwest of the Forbestown Diverson Dam, northeast of Forbestown. 700 Comment
  CAS-BOT-BC492599  Calochortus monophyllus Lowell Ahart 1985-3-22 4849 Butte Foothill Woodland. About 1/2 mile north-east of the west Branch Bridge across Lake Oroville, 1/4 mile east of Highway 70, north of Oville 450 Comment
  CAS-BOT-BC521211  Triteleia bridgesii Lowell Ahart 1983-6-21 4089 Butte Along Bloomer Hill Road; Found along Bloomer Hill Road, about 1-1/4 miles west of the Oroville Quincy Highway, about 15 miles north-east of Oroville, CA. 450 Comment
  CAS-BOT-BC530529  Zigadenus fremontii Lowell Ahart 1978-3-15 s.n. Butte 3 miles north-east of Honcut 75 Comment
  CAS-BOT-BC55331  Hirschfeldia incana Lowell Ahart 1974-5-18 s.n. Butte Near Honcut. 175 Comment
  CAS-BOT-BC60375  Nasturtium officinale Lowell Ahart 1989-5-23 6239 Butte North of the new subdivision road, 0.5 mile east of Dunstone Drive, about 0.5 mile north of Bangor Park Road. 76 Comment
  CAS-BOT-BC67556  Pellaea mucronata Lowell Ahart 1966-2-25 s.n. Butte Honcut - Peter Ahart Ranch 45 Comment
  CAS-BOT-BC74265  Raphanus sativus Lowell Ahart 1980-3-22 2048 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CAS-BOT-BC77082  Pentagramma triangularis subsp. triangularis Lowell Ahart 1980-3-16 2044 Butte Honcut, Peter Ahart Ranch 50 Comment
  CAS-BOT-BC77136  Pentagramma triangularis subsp. semipallida Lowell Ahart 1975-3-7 s.n. Butte Along road 1/2 mile E. of the Ponderosa Dam on the South Fork of the Feather River, north of Forbestown. Comment
  CAS-BOT-BC88212  Thysanocarpus curvipes Lowell Ahart 1965-4-15 s.n. Butte Near Hillcrest. 300 Comment
  CAS-BOT-BC89882  Lepidium nitidum Lowell Ahart 1980-3-11 2039 Butte Peter Ahart Ranch. Honcut. 50 Comment
  CAS-BOT-BC97686  Symphyotrichum chilense Lowell Ahart 1984-12-28 4833 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 400 Comment
  CAS-BOT-BC97695  Symphyotrichum chilense Lowell Ahart 1985-10-8 5195 Butte on the bottom and sides of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 3 miles east of Honcut, 60 Comment
  CAS-BOT-BC98328  Symphyotrichum subulatum var. parviflorum Lowell Ahart 1982-9-9 3767 Butte Gray Lodge, SW of Gridley - sides of a deep ditch, about 100 meters north of the Check-in-Station, Gray Lodge, 35 Comment
  CDA3433  Gypsophila elegans L. Ahart 2001-4-15 8726 Butte On the north side 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. Comment
  CDA36511  Sidalcea calycosa subsp. calycosa L. Ahart 1998-6-3 7964 Butte About 1/4 mile north of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  CDA37981  Clarkia arcuata L. Ahart 1998-6-3 7976 Butte About 1/4 mile north of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  CDA38925  Cyperus eragrostis L. Ahart 1999-9-21 8272 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
  CDA38952  Eleocharis acicularis var. acicularis L. Ahart 2000-10-21 8711 Butte About 100 feet north of Hamilton Road, about 1/8 mile east of Riceton Road, Rice Experiment Station northwest Biggs, 2 1/4 miles (air) north of Biggs Comment
  CDA38968  Cyperus niger L. Ahart 2000-8-23 8662 Butte About 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. Comment
  CDA3903  Sinapis alba L. Ahart 2001-4-15 8723 Butte On the north side 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. Comment
  CDA5084  Hypericum mutilum L. Ahart 2000-7-18 8602 Butte About 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. Comment
  CDA5117  Rotala indica L. Ahart 2000-10-15 8707 Butte Strand 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. Comment
  POM362394  Malacothrix floccifera L. Ahart 1984-6-8 4670 Butte At the Ponderosa Dam, ca. 2 mi NW of Forbestown 370 Comment
  RSA337376  Lupinus latifolius subsp. longipes L. Ahart 1984-6-8 4683 Butte Along the edge of the dirt road that goes to Lumpkin Ridge Road, ca. 6 miles northeast of Ponderosa Dam, ca. 4 miles southeast of Feather Falls. 550 Comment
  RSA337389  Nemacladus interior L. Ahart 1984-6-8 4669 Butte At the Ponderosa Dam, ca. 2 mi NW of Forbestown. 370 Comment
  RSA337391  Collomia heterophylla L. Ahart, P. Ahart 1984-6-10 4694 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown. 700 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
  RSA713009  Rorippa palustris subsp. occidentalis L. Ahart 2005-12-11 12509 Butte Rice Experiment Station between the Main Ditch ad Stine Lateral, on the N side of Hamilton Road, 1/4 mile E of Riceton Hwy 2.25 miles air E of Biggs. 30 Comment
  SBBG119817  Persicaria punctata L. Ahart 2006-10-8 13428 Butte E side of the N Fk of the Feather River, just E of where the river flows into a pool, on the W side of Hwy 70, ca. 0.5 mi N of Cresta Power House 609 Comment
  SBBG120020  Cuscuta campestris L. Ahart 2006-9-13 13313 Butte S edge of the N Fork of the Feather River, just W of Mill Crk, N side of Hwy 70, ca. 1/8 mi W of the Poe Dam, ca. 3/4 mi NE of Pulga, ca. 21 mi (air) NE of Oroville 431 Comment
  SBBG126101  Epilobium campestre L. Ahart 2012-6-5 18166 Butte strand of the reservoir, N of Beatson Hollow, ca 1.75 mi NW of the iron gate on N side of Cherokee Rd, N Table Mtn, ca 6 mi N of Oroville 295 Comment
  SBBG127994  Cuscuta occidentalis L. Ahart 2010-9-21 17232 Butte S side of poor dirt rd, ca. 1 mi (air) NE of Jones Meadow, ca. 2.5 mi (air) SE of Philbrook Reservoir 1899 Comment
  SBBG128612  Robinia pseudoacacia L. Ahart, L. Hanson, S. Bazell, J. Guardino 2012-5-10 18002 Butte E side of the horse path, ca. 20 yards N of paved park rd, SW part of old walnut orchard, S of Vallombrosa Avenue, ca. 0.25 mi W of Peterson Drive, Lower Bidwell Park, Chico 76 Comment
  SBBG128739  Plagiobothrys nothofulvus L. Ahart 2012-5-2 17973 Butte 20 yards S of the fence, W of the Government Pole Line, Upper Bidwell Park, ca. 3/4 mi Eof Chico 85 Comment
  SD122552  Clarkia rhomboidea Lowell Ahart, Peter Ahart 1984-5-28 4651 Butte On a large road cutbank along Highway 40, now called Dark Canyon Rd, ca. 2 miles E of Old Yankee Hill, ca. 16 miles NE of Oroville; Foothill Woodland; 449 Comment
  SEINET10448429  Arabis sparsiflora var. arcuata Lowell Ahart 1983-5-28 Ahart 4017 Butte Along trail to Feather Falls, ca. 5 mi n of the town of Feather Falls. Yellow Pine Forest; 600 m. 600 Comment
  SEINET10448514  Streptanthus polygaloides Lowell Ahart, Peter Ahart 1983-6-30 Ahart 4178 Butte T22N R4E nw/nw sec 1. Ca. 1.5 mi ne of Concow Reservoir. Foothill Woodland; 550 m. NE of Oroville. 550 Comment
  SEINET10449713  Crassula saginoides Lowell Ahart 1984-5-12 Ahart 4604 Butte T17N R4E. Peter Ahart Ranch, ca. 2.5 mi NE of Honcut, ca. 12 mi S of Oroville. Valley Grassland; 50 m. 50 Comment
  SEINET10452030  Lupinus bicolor subsp. tridentatus Lowell Ahart 1983-4-10 Ahart 3925 Butte S of a large wash, 1/10 mi e of the large barn, ca. 1.4 mi ne of Hwy 99 and Pentz Rd jct, ca. 16 mi s of Chico. Valley Grassland; 65 m. 65 Comment
  SEINET10452552  Trifolium tridentatum Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4126 Butte T20N R8E ne sec 9. Along Ponderosa Way (Big Ridge Rd), ca. 2 mi se of the jct with Oroville-Quincy Hwy, ca. 15 mi ne of Oroville. Foothill Woodland; 500 m. 500 Comment
  SEINET10453001  Epilobium brachycarpum Lowell Ahart 1985-10-12 Ahart 5201 Butte At the end of Nelson Bar Road, about 1 mile south of Kunkle Reservoir, about 3 miles south of Paradise. Comment
  SEINET10453213  Epilobium adenocaulon var. holosericeum Lowell Ahart, Peter Ahart 1983-7-24 Ahart 4212 A Butte T20N R7E ne sec 32. At the Forbestown Reservoir, ca. 5 mi ne of Forbestown. Yellow Pine Forest; 450 m. 450 Comment
  SEINET10465318  Sambucus mexicana Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4254 Butte T22N R7E nw sec 31. Ca. 2 mi e of Milsap Bar, ca. 25 mi ne of Oroville. Yellow Pine Forest; 900 m. 900 Comment
  SEINET10470433  Pityrogramma triangularis var. semipallida Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4241 Butte T22N R6E sw sec 36. Ca. 0.5 mi e of Milsap Bar, ca. 25 mi ne of Oroville. Yellow Pine Forest; 500 m. 500 Comment
  SEINET10471411  Thelypteris nevadensis Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4222 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
  SEINET10472284  Juncus ensifolius Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4223 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
  SEINET10475175  Micropus californicus Lowell Ahart, Peter Ahart 1983-6-12 Ahart 4043 Butte T20N R5E n half sec 36. Ca. 1 mi s of Crystal Hill, n of Oregon Gulch, near Lake Oroville, ca. 7 mi sw of Feather Falls. Yellow Pine Forest. Comment
  SEINET10479662  Polygonum parryi Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4730 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
  SEINET10482893  Philadelphus lewisii subsp. californicus Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4080 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
  SEINET10492842  Phoradendron juniperinum subsp. libocedri Lowell Ahart, Peter Ahart 1985-9-15 Ahart 5169 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. Comment
  SEINET10497259  Cryptantha affinis Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4724 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
  SEINET10497604  Cryptantha hendersonii Lowell Ahart, Peter Ahart 1983-6-30 Ahart 4180 Butte T22N R4E nw/nw sec 1. Ca. 1.5 mi ne of Concow Reservoir. Foothill Woodland; 550 m. NE of Oroville. 550 Comment
  SEINET10497616  Plagiobothrys stipitatus var. micranthus Lowell Ahart 1983-6-6 Ahart 4034 A Butte Peter Ahart Ranch, ca. 2.5 mi ne of Honcut. Valley Grassland; 50 m. 50 Comment
  SEINET10498989  Pogogyne zizyphoroides Lowell Ahart 1983-5-12 Ahart 3980 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
  SEINET10499848  Plantago erecta Lowell Ahart 1983-4-10 Ahart 3921 Butte S of a large wash, 1/10 mi e of the large barn, ca. 1.4 mi ne of Hwy 99 and Pentz Rd jct, ca. 16 mi s of Chico. Valley Grassland; 65 m. 65 Comment
  SEINET10507042  Aira caryophyllea Lowell Ahart 1983-4-1 Ahart 3913 Butte In Dark Canyon along old Hwy 40 s of its jct with Hwy 70, ca. 4 mi s of Jarbo Gap, ne of Oroville. Foothill Woodland; 350 m. 350 Comment
  SEINET10507503  Lolium temulentum Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4068 Butte T20N R5E sec 5. Along Bloomer Hill Rd, ca. 0.5 mi w of Oroville-Quincy Hwy, ca. 15 mi ne of Oroville. Foothill Woodland. 400 Comment
  SEINET10508156  Melica californica Lowell Ahart 1985-5-15 Ahart 4974 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
  SEINET10508181  Muhlenbergia filiformis Lowell Ahart 1983-8-16 Ahart 4305 Butte T26N R4E section 32. Near Bull Hill Road, ca. 3 miles south of Butte Meadows. Yellow Pine Forest; 1450 m. 1450 Comment
  SEINET10530386  Ophioglossum lusitanicum subsp. californicum Lowell Ahart 1991-3-11 Ahart 6642 Butte Near a small wash, in an open pasture field, Joie Osgood Ranch, about 2 1/2 miles north and 3 and 3/4 miles east of Honcut, about 12 miles southeast of Oroville. Foothill Woodland. T17N R4E S1. 91 Comment
  SEINET10531479  Cupressus macnabiana Lowell Ahart Ahart 5007 Butte Near a steel tower line, west of Rocky Ridge, about 4 miles north-east of Jarbo Gap. Comment
  SEINET10535997  Thalictrum polycarpum Lowell Ahart 1985-5-10 Ahart 4954 Butte East branch of Potter Ravine, about 2 1/4 miles north of Oroville Dam. Comment
  SEINET10546583  Datura meteloides Lowell Ahart 1985-9-14 Ahart 5167 Butte On dry red soil on the east side of a building, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 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
  SEINET10841185  Psoralea orbicularis Lowell Ahart 1985-7-24 Ahart 5150 Butte East of the dirt road to the Forbestown Res., about 2 1/2 miles north-east of Forbestown. Comment
  SEINET10869730  Navarretia intertexta Lowell Ahart, Peter Ahart 1983-6-12 Ahart 4038 Butte T20N R5E n half sec 36. Ca. 1 mi s of Crystal Hill, n of Oregon Gulch, near Lake Oroville, ca. 7 mi sw of Feather Falls. Yellow Pine Forest. Comment
  SEINET10873090  Githopsis specularioides Lowell Ahart, Peter Ahart 1983-6-12 Ahart 4041 Butte T20N R5E n half sec 36. Ca. 1 mi s of Crystal Hill, n of Oregon Gulch, near Lake Oroville, ca. 7 mi sw of Feather Falls. Yellow Pine Forest. Comment
  SEINET10935929  Cryptantha intermedia Lowell Ahart 1985-5-31 Ahart 5030 Butte Lake Oroville, 1/8 mile east of the Enterprise Launch Area, about 1/2 mile west of the Enter- prise Bridge across Lake Oroville, north-east of Oroville. Comment
  SEINET10938354  Pilularia americana Lowell Ahart 1984-5-12 Ahart 4603 Butte T17N R4E. Peter Ahart Ranch, ca. 2.5 mi NE of Honcut, ca. 12 mi S of Oroville. Valley Grassland; 50 m. 50 Comment
  SEINET10968236  Danthonia californica Lowell Ahart 1983-8-16 Ahart 4291 Butte T26N R4E nw section 28. Along a small stream that flows into Butte Creek, ca. 1 mi east of Butte Meadows. Yellow Pine Forest; 1450 m. 1450 Comment
  SEINET10971559  Pellaea mucronata Lowell Ahart 1983-3-28 Ahart 3912 Butte E bank of Woodleaf Creek above the rd, ca. 3/8 mi sw of Forbestown Reserv., ca. 4 mi ne of Forbestown. Yellow Pine Forest. 450 Comment
  SEINET10971573  Cheilanthes californica Lowell Ahart 1983-5-28 Ahart 4023 Butte Along trail to Feather Falls, ca. 5 mi n of the town of Feather Falls. Yellow Pine Forest; 600 m. 600 Comment
  SEINET10973242  Trifolium columbinum Lowell Ahart 1983-5-13 Ahart 3988 Butte Banks of North Honcut Creek, Peter Ahart Ranch, ca. 3 mi ne of Honcut. Foothill Woodland; 50 m. 50 Comment
  SEINET11268217  Amaranthus palmeri Lowell Ahart 1993-10-4 7270 Butte Along the north side of Durham Pentz Road, about 1/10 mi west of Butte Creek, about 1/10 mile east of Durham.; 0 49 Comment
  SEINET11268243  Lobularia maritima Lowell Ahart 2001-4-15 8722 Butte On the north side 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.; 0 23 Comment
  SEINET11268264  Eleocharis macrostachya Lowell Ahart 2000-5-18 8369 Butte On the bottom of the Clay Pit, about 1/8 mile west of the Oroville Airport and Larkin Road, about 4 1/2 miles (air) southwest of Oroville.; 0 37 Comment
  SEINET12092936  Dicentra formosa L. Ahart, Ahart, P. 1984-1 4710 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown, Yellow Pine Forest 700 Comment
  SEINET12230385  Phoradendron juniperinum L. Ahart, Ahart, P. 1985-1 5169 Butte about 2 mi W of Sly Creek Reservoir, E of the intersection of Golden Trout Crossing road on Reville 914 Comment
  SEINET12331812  Gilia capitata L. Ahart, Ahart, P. 1984-1 4748 Butte about 1.5 mi SE of Bald Mountain, 0.75 mi W of Oak Point, about 4 mi NE of Stirling City 1500 Comment
  SEINET516434  Cryptantha flaccida Lowell Ahart 1983-1 4119 Butte Normal size plant, growing on dry red rocky soil along Ponderosa Way, about 2 mi. SE of the intersection of the Oroville Quincy Hwy and Ponderosa Way (Big Ridge Rd.), about 15 mi NE of Oroville. 457 Comment
  SEINET6166093  Pilularia americana L. Ahart 1978-5-15 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  SEINET9084612  Cyperus bipartitus L. Ahart 2000-8-23 8663 Butte Oroville Wildlife Area, ca 0.5 mile W of Pacific Heights Road; ca 4 air miles SW of Oroville. 43 Comment
  UC1586405  Collinsia sparsiflora var. collina Lowell Ahart 1991-8-8 6643 Butte On a steep slopoe on the W side of north Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles N and 2 annd 3/4 miles E of Honcut, about 12 miles SE of Oroville. Foothill Woodland. 45 Comment
  UCD119835  Cryptantha intermedia Lowell Ahart 1984-6-8 4677 Butte along the dirt road near the water tower, above the generator, 1 mile east of Ponderosa Dam, 2 miles north of Forbestown. 475 Comment
  UCD126246  Cuscuta californica var. californica Lowell Ahart 1998-7-18 8042 Butte along Hurleton Swedes Flat Road, 1.5 miles (air) south of Hurleton, about 11 miles (air) southeast of Oroville. 487 Comment
  UCD128616  Agoseris monticola Lowell Ahart 1995-10-3 7669 Butte along the north side of Butte Creeke House Meadow, about 2.5 miles (air) north-east of Snag Lake. 1767 Comment
  UCD139163  Brodiaea sierrae Lowell Ahart 1998-7-10 8036 Butte on the southeast side of North Honcut Creek, Peter Ahart Ranch, about 1.5 miles north and 2.75 miles east of Honcut about 12 miles southeast of Oroville. 54 Comment
  UCD139200  Dichelostemma capitatum subsp. capitatum L. Ahart 1977-3-28 1229 Butte Peter Ahart Ranch, Honcut. 50 Comment
  UCSB63781  Cyperus strigosus Ahart, Lowell 1998-7-18 Butte T20N, R4E, northeast 1/4 Section 17; West side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 396 Comment
  UCSB63838  Navarretia leptalea Ahart, Lowell 1997-8-1 Butte Little Kimshew Creek, in Snow Meadow; about 1/4 mile east of Table Mountain; about 8 miles (air) northeast of Stirling City 1524 Comment
  UCSB63848  Cryptantha affinis Ahart, Lowell 1997-7-1 Butte T24N, R5E, very southwest 1/4 of Section 9; north of the campus along Little Kimshew Creek, about 1/4 mi north of the County Road, east of Bald Mountain, about 1/4 mi north of the County Rd, east of Bald Mtn, about 8 mi (air) northeast of Stirling City 1219 Comment
  UCSB64018  Atriplex lentiformis Ahart, Lowell 1981-7-26 Butte east of the dirt road, about 1 mile north¬west of Pennington Road, about 1/2 mile north¬east of the Gray Lodge Waterfowl Management Area Headquarters, about 12 miles south-west of Gridley 30 Comment
  CDA1337  Chenopodium album L. Ahart 2004-10-4 11430 Colusa East side of Leesville Road, about 4.7 miles by road southeast of the intersection of Bear Valley Road, Leesville Ladoga Road and Leesville Road, northeast of Bear Valley. Comment
  CDA28167  Polypogon interruptus L. Ahart 2006-8-9 13159 Colusa North side and under the bridge across Stony Creek, just north of Stonyford. Comment
  CHSC112238  Trifolium microcephalum Lowell Ahart 2013-5-1 18693 Colusa Inner North Coast Ranges. Along 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
  CHSC112258  Ancistrocarphus filagineus Lowell Ahart; John Dittes, Josephine Guardino 2013-4-26 18626 Colusa Inner North Coast Range. On the north side of State Highway 20, just east of Lake County Line, 12.2 miles (air) east-northeast of Clear Lake (town), 17.1 miles (air) west of Williams. 566 Comment
  CHSC112274  Daucus pusillus Lowell Ahart; John Dittes, Josephine Guardino 2013-4-26 18625 Colusa Inner North Coast Range. North side of State Highway 20, just east of Lake County Line, 12.2 miles (air) east-northeast of Clear Lake (town), 17.1 miles (air) west of Williams. 566 Comment
  CHSC113038  Xanthium strumarium Lowell Ahart 2013-10-1 19095 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
  CHSC113134  Verbena lasiostachys var. scabrida Lowell Ahart 2013-10-1 19091 A 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
  CHSC114994  Chenopodium californicum Lowell Ahart 2015-4-28 20112 Colusa High bank on the west side of Leesville-Lodoga Road, about 300 yards north of the intersection of Bear Valley Road and Brim Road, Bear Valley, about 2 miles southwest of Leesville, about 14 1/2 miles(air) west of Williams. 395 Comment
  CHSC115388  Microseris douglasii subsp. douglasii Lowell Ahart 2015-4-1 19996 Colusa Near 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
  CHSC84957  Ammannia coccinea Lowell Ahart 2003-10-23 10673 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
  CHSC94289  Mentha canadensis Lowell Ahart 2006-8-9 13090 Colusa On the south side of Stony Creek, at Mine Camp, about 3 1/2 miles (air) west of Stonyford. 455 Comment
  CHSC94312  Mimetanthe pilosa Lowell Ahart 2006-8-9 13105 Colusa Gravel bar on the south side of Stony Creek, at Mine Camp, about 3 1/2 miles (air) west of Stonyford. 422 Comment
  CHSC94428  Panicum capillare Lowell Ahart 2006-8-22 13222 Colusa South side of Stony Creek, about 100 yards west of the bridge across Stony Creek, just north of Stonyford. 349 Comment
  CHSC94457  Trichostema laxum Lowell Ahart 2006-8-9 13117 Colusa North side and under the bridge across Stony Creek, just north of Stonyford. 347 Comment
  CHSC94479  Dysphania botrys Lowell Ahart 2006-8-9 13119 Colusa North side and under the bridge across Stony Creek, just north of Stonyford. 347 Comment
  CHSC94480  Lythrum tribracteatum Lowell Ahart 2006-8-9 13162 Colusa North side and under the bridge across Stony Creek, just north of Stonyford. 347 Comment
  CHSC94510  Chenopodium album Lowell Ahart 2006-8-22 13221 A Colusa South side of Stony Creek, about 100 yards west of the bridge across Stony Creek, just north of Stonyford. 349 Comment
  CHSC94516  Stachys ajugoides var. rigida Lowell Ahart 2006-8-22 13235 Colusa North side and under the bridge across Stony Creek, just north of Stonyford. 347 Comment
  CHSC94677  Madia exigua Lowell Ahart 2006-6-11 12665 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
  CHSC94732  Symphyotrichum subulatum var. parviflorum Lowell Ahart 2006-9-26 13343 Colusa Between the deep ditch and the Delevan National Wildlife Refuge, north side of Maxwell Road, about 3 miles west of Colusa Princeton Road, about 5 1/2 miles east of Maxwell. 24 Comment
  CHSC94744  Distichlis spicata Lowell Ahart 2006-9-26 13353 Colusa Between the deep ditch and the Delevan National Wildlife Refuge, north side of Maxwell Road, about 3 miles west of Colusa Princeton Road, about 5 1/2 miles east of Maxwell. 24 Comment
  CHSC96927  Malvella leprosa Lowell Ahart 2007-7-7 14261 Colusa On north side of the Gridley Colusa Highway, about 1 1/4 miles east of River Road, about 17 miles west of Gridley. 20 Comment
  CHSC97126  Lemna minuta Lowell Ahart 2007-7-7 14259 Colusa Deep ditch, on the north side of the Gridley Colusa Highway, about 1 1/4 miles east of River Road, about 17 miles west of Gridley. 20 Comment
  HSC96892  Lagophylla minor L. Ahart 2006-6-11 12667 Colusa E side of an off road trail (Trail 30), about 100 yards S of Fouts Rd., about 5 mi. W of Stonyford 613 Comment
  JEPS104385  Mimulus microphyllus Lowell Ahart 2003-7-14 10383 Colusa Along a stream, field on the south side of Highway 20, ca 2 mi sw of the intersection of Highway 20 and Bear Valley Rd, ca 21 mi (by road) sw of Williams. 520 Comment
  JEPS104399  Ambrosia psilostachya Lowell Ahart 2003-10-23 10659 Colusa Along Squaw Creek, just south of East Park Reservoir, ca 1/8 mi nw of Sites Lodoga Rd, ca 1 mi n of Lodoga, ca 21 mi w of Maxwell. 368 Comment
  JEPS104401  Helminthotheca echioides Lowell Ahart 2003-10-23 10661 Colusa Along Squaw Creek, just south of East Park Reservoir, ca 1/8 mi nw of Sites Lodoga Rd, ca 1 mi n of Lodoga, ca 21 mi w of Maxwell. 368 Comment
  JEPS108816  Heterocodon rariflorum Lowell Ahart 2006-6-11 12678 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
  JEPS110105  Lotus purshianus var. purshianus Lowell Ahart 2006-8-9 13150 Colusa North side and under the bridge across Stony Creek, just north of Stonyford 347 Comment
  JEPS120703  Helianthus bolanderi Lowell Ahart 2013-10-1 19071 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
  JEPS120711  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2013-10-1 19104 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
  JEPS120974  Melilotus indicus Lowell Ahart, John Dittes, Josephine Guardino 2013-4-26 18646 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
  JEPS120999  Thysanocarpus laciniatus Lowell Ahart, John Dittes, Josephine Guardino 2013-5-1 18664 Colusa On the E side of Bear Valley Road, about 2.5 road miles NW of intersection of Hwy 20 and Bear Valley Road. Comment
  JEPS121101  Pterostegia drymarioides Lowell Ahart 2013-5-1 18669 Colusa On the E side of Bear Valley Road, about 2.5 road miles NW of intersection of Hwy 20 and Bear Valley Road. Comment
  JEPS121113  Lagophylla minor Lowell Ahart 2013-5-1 18680 Colusa N of the wash and Hwy 20, just E of Lake County line, 12.2 air miles ENE of the town of Clear Lake, 17.1 air miles W of Williams. Comment
  JEPS124232  Claytonia exigua subsp. exigua Lowell Ahart 2015-4-1 19994 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
  JEPS124244  Castilleja foliolosa Lowell Ahart 2015-4-10 20014 Colusa About 2 miles west of the intersection of Bear Valley Road and Brim Road, about 17 miles (air) west of Williams. Comment
  RSA0118614  Logfia filaginoides Lowell Ahart 2013-5-1 18678 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 miles (air) east-northeast of Clear Lake (town), 17.1 miles (air) west of Williams. 566 Comment
  RSA724951  Polypogon interruptus L. Ahart 2006-8-9 13159 Colusa between the southwest 1/4 and southeast 1/4; under the bridge across Stony Creek, just north of Stonyford. 348 Comment
  RSA724962  Mimulus pilosus L. Ahart 2006-8-9 13113 Colusa North side and under the bridge across Stony Creek, just north of Stonyford. 348 Comment
  RSA724964  Datisca glomerata L. Ahart 2006-8-9 13146 Colusa North side and just east of the bridge across Stony Creek, just north of Stonyford 348 Comment
  SBBG119881  Juncus xiphioides L. Ahart 2006-8-9 13145 Colusa N side and just E of the bridge across Stony Crk, just N of Stonyford 347 Comment
  SBBG121613  Malvella leprosa L. Ahart 2007-7-7 14261 Colusa N side of the Gridley Colusa Hwy ca. 1.25 mi E of River Rd, ca. 17 mi W of Gridley 20 Comment
  JEPS127235  Stipa pulchra Lowell Ahart, Josephine Guardino 2016-4-19 20793 Contra Costa 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 to Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Springs USGS 7.5' Quad. Comment
  CDA36509  Sidalcea hartwegii L. Ahart 2006-6-11 12695 Glenn On the west side of the road, about 1/2 mile past the meadow (north), seep at the start of Black Diamond Creek, about 3 miles (air) northeast of the North Fork Campground, about 4 1/4 miles (air) northwest of Stonyford. Comment
  CHSC112478  Amaranthus albus Lowell Ahart 2013-10-22 19183 Glenn Near an old homestead, strand of Stony Gorge Reservoir, about two miles south of the dam, about 17 miles (air) northwest of Willows. 248 Comment
  CHSC112649  Eragrostis hypnoides Lowell Ahart 2013-10-19 19173 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. 26 Comment
  CHSC112714  Glinus lotoides Lowell Ahart 2013-10-22 19189 A Glenn Strand of Stony Gorge Reservoir, about 2 miles south of the dam, about 17 miles (air) northwest of Willows. 248 Comment
  CHSC112805  Lindernia dubia var. anagallidea Lowell Ahart 2013-8-8 19011 Glenn North end of Grizzly Flat, strand of Black Butte Reservoir, about 9 miles (air) west of Orland. 132 Comment
  CHSC81117  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart; Vernon H. Oswald 2001-8-22 9175 Glenn Along a small wash, 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. 140 Comment
  CHSC81129  Mollugo verticillata Lowell Ahart; Vernon H. Oswald 2001-8-22 9170 Glenn 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. 140 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
  CHSC84986  Eriogonum dasyanthemum Lowell Ahart 2003-10-6 10619 Glenn On the south margin of the paved road, Newville Road (Road 206), about 200 yards southwet of the cemetery, about 6 miles west of Orland. 134 Comment
  CHSC87960  Epilobium densiflorum Lowell Ahart 2004-6-18 11105 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
  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
  CHSC94742  Lythrum hyssopifolia Lowell Ahart 2006-6-15 12787 Glenn On the east side of Forest Road 18N03, about 1 1/1 miles (air) northeast of the North Fork Campground, about 5 3/4 miles (air) west-northwest of Stonyford. 630 Comment
  CHSC94770  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
  CHSC94776  Gnaphalium palustre Lowell Ahart 2006-6-15 12743 Glenn Burned area, along a small drainage, on the north side of Black Diamond Road, about 2 1/2 miles west of the paved road, about 4 3/4 miles (by road) from Stonyford. 749 Comment
  HSC96847  Eriogonum tripodum L. Ahart 2006-6-15 12734 Glenn NE side of Black Diamond Rd. 2 mi. W of the paved rd., 4 mi. from Stonyford 582 Comment
  HSC97197  Melica torreyana L. Ahart 2006-6-11 12683 Glenn E side of Forest Rd. 18N03, S of an intersection, on Black Diamond Ridge, ca. 2 air mi. NE of the N Fork Campground, ca. 4 and 3/4 air mi. NW of Stonyford. 945 Comment
  JEPS106058  Velezia rigida Lowell Ahart 2004-6-18 11088 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
  JEPS106142  Juncus xiphioides Lowell Ahart 2004-6-18 11070 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
  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
  JEPS108917  Dicentra chrysantha Lowell Ahart 2006-6-15 12745 Glenn On the west side of Black Diamond Road, about 2 1/2 miles west of the paved road, about 4 3/4 miles (by road) from Stonyford 749 Comment
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Apr 2 2009
  JEPS110181  Juncus bufonius var. congestus Lowell Ahart 2006-6-11 12714 Glenn About 100 yards north of the ford across Stony Creek (Forest Road 18N03), about 2 miles (air) northeast of the North Fork Campground, about 5 1/4 miles west-northwest of Stonyford 595 Comment
  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
  JEPS110263  Melica torreyana Lowell Ahart 2006-6-11 12683 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
  JEPS110352  Lotus denticulatus Lowell Ahart 2006-6-11 12728 Glenn About 100 yards north of the ford across Stony Creek (Forest Road 18N03), about 2 miles (air) northeast of the North Fork Campground, about 5 1/4 miles (air) west-northwest of Stonyford 595 Comment
  JEPS110356  Trifolium variegatum Lowell Ahart 2006-6-11 12699 Glenn On the side of a small seep, (out in the middle of nowhere, gnats terrible), about 1/2 mile southeast of Forest Road 18N03, on lower part of Black Diamond Ridge, about 1 mile (air) northeast of North Fork Campground, about 4 1/4 miles (air) west-northwest 703 Comment
  JEPS120627  Echinochloa crus-galli Lowell Ahart 2013-10-22 19193 Glenn Strand of Stony Gorge Reservoir, about 2.5 miles south of the dam, about 17 air miles northwest of Willows. Comment
  JEPS120635  Cypselea humifusa Lowell Ahart 2013-10-22 19198 Glenn Strand of Stony Gorge Reservoir, about 2.5 miles south of the dam, about 17 air miles northwest of Willows. Comment
  JEPS120728  Boehmeria cylindrica Lowell Ahart 2013-10-19 19120 Glenn On the west side of the backwater, along the west side of the Sacramento river, about 300 yards north of the bridge, west of Butte City. Comment
  JEPS120819  Crypsis alopecuroides Lowell Ahart 2013-8-8 19009 Glenn North end of Grizzly flat, strand of Black Butter Reservoir, about 9 air miles W of Orland. Comment
  JEPS120820  Eragrostis hypnoides Lowell Ahart 2013-8-8 19003 Glenn North end of Grizzly flat, strand of Black Butter Reservoir, about 9 air miles W of Orland. Comment
  RSA0015867  Lythrum hyssopifolia L. Ahart 2006-6-15 12787 Glenn On the east side of Forest Road 18N03, about 1.5 miles (air) northeast of the North Fork Campground, about 5.75 miles (air) WNW of Stonyford. 631 Comment
  RSA699615  Polypogon maritimus L. Ahart 2004-6-18 11104 Glenn 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
  RSA724837  Lupinus latifolius subsp. latifolius L. Ahart 2006-6-15 12763 Glenn 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
  RSA724847  Dicentra chrysantha L. Ahart 2006-6-11 12697 Glenn South side of the road, about 1/8 mile passed the meadow (east), seep at the start of Black Diamond Creek, about 2.5 miles (air) northeast of the North Fork Campground, about 4 miles (air) northwest of Stonyford 756 Comment
  RSA724978  Mimulus guttatus L. Ahart 2006-6-15 12742 Glenn On the north side of Black Diamond Road, about 2.5 miles west of the paved road, about 4.75 miles (by road) from Stonyford. 750 Comment
  CDA41797  Mimulus guttatus L. Ahart 2004-10-4 11448 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. Comment
  CHSC115327  Claytonia exigua subsp. exigua Lowell Ahart 2015-4-10 20018 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
  CHSC89387  Chenopodium rubrum Lowell Ahart 2004-10-4 11431 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. 446 Comment
  CHSC89453  Trichostema laxum Lowell 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. 446 Comment
  CHSC89455  Heterotheca oregona var. oregona Lowell Ahart 2004-10-4 11452 Lake On the north edge of Bartlett Springs Road (Road M 12), near the northwest part of Indian Valley Reservoir. 458 Comment
  HSC97116  Madia elegans L. Ahart 2004-10-4 11451 Lake N edge of Bartlett Springs Rd. (Road M12), near the NW part of the Indian Valley Reservoir 459 Comment
  JEPS105941  Glinus lotoides Lowell Ahart 2004-10-4 11443 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 446 Comment
  JEPS105953  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2004-10-4 11437 Lake Below the high water line of Indian Valley Reservoir, along the stream in the northeast part of the reservoir, on the south side of Bartlett Springs Road 446 Comment
  JEPS106122  Ericameria arborescens Lowell Ahart 2004-10-14 11470 Lake On the south side of Cache Creek, on the south side of Bartlett Springs Road (Road M 12), about 2 miles west of the northwest part of Indian Valley Reservoir 477 Comment
  JEPS123903  Astragalus rattanii var. jepsonianus Lowell Ahart 2015-4-28 20094 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
  JEPS124252  Iris macrosiphon Lowell Ahart 2015-4-10 20016 Lake About 3 miles west 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
  RSA703153  Eleocharis parishii L. Ahart 2004-10-4 11439 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
  RSA703155  Mimulus guttatus L. Ahart 2004-10-4 11448 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
  SEINET13710303  Senecio clevelandii Lowell William Ahart, Lowell William Ahart 2003-1 10393 Lake Serpentine Area at Barrell Spring, 2 Mi. W of Bear Valley (39 Deg 08'51.2"N, 122 Deg 28'41.5"W) 1302 Ft. 397 Comment
  SEINET13710554  Eleocharis quinqueflora Lowell William Ahart, Lowell William Ahart 2000-1 8432 Lake 2.5 Mi. W of Bear Valley 2000 Ft. 610 Comment
  UCD169383  Arceuthobium campylopodum Lowell Ahart 2004-10-14 11458 Lake On the south edge of Bartlett Springs Road (Road M 12), near the northwest part of Indian Valley Reservoir. 458 Comment
  UCD169385  Chenopodium album Lowell Ahart 2004-10-4 11430 Lake Indian Valley Reservoir, near the stream in the northeast part of the reservoir, on the south side of Bartlett Springs Road. 446 Comment
  CHSC107323  Astragalus lentiginosus var. salinus Lowell Ahart; John Dittes 2011-6-20 17510 Lassen Forest floor, near the edge of the Ash Valley Road, 3,120 feet south of Ash Creek Campground, about 6.5 miles (air) southeast of Adin. 1511 Comment
  CHSC107999  Boechera pinetorum Lowell Ahart; John Dittes 2011-6-20 17505 Lassen About 40 yards north of the dirt road, about 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin. 1520 Comment
  CHSC112426  Claytonia rubra subsp. depressa Lowell Ahart; John Dittes, Todd Sloat 2013-6-8 18742 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
  CHSC112766  Sisymbrium altissimum Lowell Ahart; John Dittes 2013-7-23 18884 Lassen Drainage filled with dirt from construction of a pond, 40 yards south of the man made pond, about 110 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC112789  Puccinellia lemmonii Lowell Ahart; John Dittes, Todd Sloat 2013-6-9 18788 Lassen Depression, on the south side of the road, on the south side of McArthur Diversion Canal, 0.32 mile east of Tule River, 2.8 air-miles northwest of McArthur, Fall River Valley, McArthur Swamp. 1007 Comment
  CHSC112795  Agrostis exarata Lowell Ahart; John Dittes 2013-7-22 18858 Lassen Drainage filled with dirt from construction of a pond, 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
  CHSC113013  Polygonum polygaloides subsp. confertiflorum Lowell Ahart; John Dittes 2013-7-23 18905 Lassen On the northwest 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
  CHSC113058  Epilobium brachycarpum Lowell Ahart; John Dittes 2013-7-22 18845 Lassen West margin of a duck field, about 10 yards east of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC113061  Epilobium brachycarpum Lowell Ahart; John Dittes 2013-7-22 18844 Lassen West margin of a duck field, about 20 yards southeast of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC113085  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart; John Dittes 2013-7-22 18857 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
  CHSC115608  Plagiobothrys cusickii Lowell Ahart; John Dittes 2015-7-13 20305 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
  CHSC116070  Sisymbrium altissimum Lowell Ahart; John Dittes 2015-7-13 20316 -A 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
  CHSC117179  Juncus uncialis Lowell Ahart; John Dittes 2016-6-7 21013 Lassen 10 yards west of State Highway 299, Big Valley Mountains, 0.4 mile (air) northeast of Big Valley Summit, 5.0 miles (air) southwest of Bieber. 1397 Comment
  CHSC117183  Castilleja lacera Lowell Ahart; John Dittes 2016-6-7 21021 Lassen About 10 yards west of State Highway 299, Big Valley Mountains, 0.4 mile (air) northeast of Big Valley Summit, 5.0 miles (air) southwest of Bieber. 1397 Comment
  CHSC117194  Pilularia americana Lowell Ahart; John Dittes 2016-6-7 20973 Lassen About 50 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
  CHSC117201  Lomatium bicolor var. leptocarpum Lowell Ahart; John Dittes 2016-6-7 20975 Lassen 20 yards west of the pond, about 100 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 6.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  CHSC117213  Ranunculus arvensis Lowell Ahart; John Dittes 2016-6-7 21003 Lassen Near 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
  CHSC117285  Alopecurus carolinianus Lowell Ahart; John Dittes 2016-7-15 21214 Lassen About 300b yards west of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) mortheast of Bieber, Big Valley. 1261 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
  CHSC117540  Grindelia nana Lowell Ahart; John Dittes 2016-7-13 21197 Lassen Drying strand of the pond near the overflow, 30 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
  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
  CHSC76091  Atriplex argentea var. mohavensis Lowell Ahart; Vernon Oswald 1999-9-13 8207 Lassen On the east side of the dirt road and 1/2 mile south of the sign in station, Honey Lake Wildlife Area, 4 1/2 miles (air) southeast of Standish. 1207 Comment
  CHSC91179  Vulpia octoflora Lowell Ahart; John Dittes 2005-6-1 11875 Lassen On the south side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, about 1 3/4 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.7 miles (air) northwest of Hallelujah Junction. 1461 Comment
  CHSC91180  Veronica peregrina subsp. xalapensis Lowell Ahart; John Dittes 2005-6-1 11908 Lassen On the north side of Scott Road, east side of the railroad underpass, Long Valley, about 4 3/4 miles (air) north of the intersection of Scott Road and Highway 70, 6.2 miles (air) northwest of Hallelujah Junction. 1459 Comment
  CHSC91186  Ranunculus occidentalis var. occidentalis Lowell Ahart; John Dittes 2005-6-1 11857 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
  CHSC91207  Erigeron divergens Lowell Ahart; John Dittes 2005-6-2 11924 Lassen Along the road, near the Anderson Ranch home, 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
  CHSC91327  Vicia americana var. americana Lowell Ahart; John Dittes 2005-6-1 11866 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
  CHSC93554  Phacelia hastata subsp. compacta Lowell Ahart; John Dittes 2005-6-2 11950 Lassen Long Valley, along a poor dirt road, about 1 mile northeast of the Anderson Ranch home, about 5 1/2 miles (air) north of the intersection of Scott Road and Highway 70, 6.7 miles (air) northwest of Hallelujah Junction. 1498 Comment
  CHSC93673  Phacelia heterophylla subsp. virgata Lowell Ahart; John Dittes 2005-6-2 11983 Lassen North side of a poor dirt road, 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. 1410 Comment
  CHSC93675  Erigeron canadensis Lowell Ahart; John Dittes 2005-6-2 11974 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
  CHSC93692  Castilleja tenuis Lowell Ahart; John Dittes 2005-6-1 11902 Lassen On the north side of Scott Road, east side of the railroad underpass, Long Valley, about 4 3/4 miles (air) north of the intersection of Scott Road and Highway 70, 6.2 miles (air) northwest of Hallelujah Junction. 1459 Comment
  CHSC93694  Camissonia pubens Lowell Ahart; John Dittes 2005-6-2 11993 Lassen Along a small wash, east side of a poor dirt road, Long Valley, about 4 1/2 miles (air) northeast of the intersection of Scott Road and Highway 70, 6.0 miles (air) northwest of Hallelujah Junction. 1427 Comment
  CHSC99132  Blepharipappus scaber Lowell Ahart; John Dittes 2008-6-19 14876 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
  CHSC99142  Swertia albicaulis var. albicaulis Lowell Ahart; John Dittes 2008-6-19 14881 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
  CHSC99144  Castilleja pilosa Lowell Ahart; John Dittes 2008-6-19 14879 Lassen Open flat, east bank of Willow Creek, about 30 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber. 1578 Comment
  CHSC99274  Ribes aureum var. aureum Lowell Ahart; John Dittes 2008-6-20 14950 Lassen About 300 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
  CHSC99293  Alopecurus geniculatus Lowell Ahart; John Dittes 2008-6-20 14960 Lassen About 300 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1263 Comment
  CHSC99295  Microseris laciniata subsp. laciniata Lowell Ahart; John Dittes 2008-6-20 14951 Lassen About 300 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
  CHSC99482  Festuca idahoensis Lowell Ahart; John Dittes 2008-6-19 14880 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
  CHSC99730  Astragalus lemmonii Lowell Ahart; John Dittes 2008-6-20 14968 Lassen About 10 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7.0 miles (air) northeast of Bieber. 1263 Comment
  JEPS107309  Chaenactis stevioides Lowell Ahart, John Dittes 2005-6-1 11893 Lassen On the east side of Scott Road, Long Valley, about 4 3/8 miles (air) north of the intersection of Scott Road and Highway 70, about 5.7 miles (air) northwest of Hallelujah Junction 1460 Comment
  JEPS107469  Agoseris glauca var. glauca Lowell Ahart, John Dittes 2005-6-1 11849 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
  JEPS107689  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
  JEPS107821  Eriogonum umbellatum var. nevadense Lowell Ahart, John Dittes 2005-6-2 11980 Lassen North side of a poor dirt road, 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 1410 Comment
  JEPS107833  Eriogonum strictum var. anserinum Lowell Ahart, John Dittes 2005-6-2 11984 Lassen North side of the poor dirt road, Long Valley, about 4 1/2 miles (air) northeast of the intersection of Scott Road and Highway 70, 5.8 miles (air) northwest of Hallelujah Junction 1430 Comment
  JEPS107853  Ceanothus velutinus var. velutinus Lowell Ahart, John Dittes 2005-6-2 11943 Lassen Along a small stream, about 1 1/2 miles northeast of the Anderson Ranch home, Long Valley, about 6 miles (air) north of the intersection of Scott Road and Highway 70, 7.5 miles (air) northwest of Hallelujah Junction 1601 Comment
  JEPS114620  Castilleja pilosa Lowell Ahart, John Dittes 2008-6-19 14879 Lassen Open flat, east bank of Willow Creek, about 30 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber 1578 Comment
  JEPS114640  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
  JEPS114693  Castilleja tenuis Lowell Ahart, John Dittes 2008-6-20 14944 Lassen In vernal pools and swales, 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
  JEPS114744  Eriogonum strictum var. anserinum Lowell Ahart, John Dittes 2008-6-19 14893 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
  JEPS114756  Geum triflorum Lowell Ahart, John Dittes 2008-6-19 14872 Lassen Along a small wash, about 100 yards east of Willow Creek, about 120 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber 1578 Comment
  JEPS114855  Festuca idahoensis Lowell Ahart, John Dittes 2008-6-19 14880 Lassen about 100 yds E of Willow Creek, about 120 yds NE of Hwy 139, near Forest Road 36N02, about 19.6 mi E-SE of Bieber 1578 Comment
  JEPS117259  Arenaria congesta var. congesta Lowell Ahart, John Dittes 2010-7-31 17011 Lassen About 2,300 feet north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin 1510 Comment
  JEPS117479  Solanum sarrachoides Lowell Ahart, John Dittes 2010-8-31 17138 Lassen On the east side of Walters Road, 4235 feet south of Modoc County Line, about 4.3 miles (air) south-southwest of Adin, about 7.0 miles (air) northeast of Bieber, Big Valley 1276 Comment
  JEPS117483  Sanguisorba annua Lowell Ahart, John Dittes 2010-7-31 17003 Lassen On the north side of the road, about 10 yards east of the large culvert, where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin 1516 Comment
  JEPS117494  Sidalcea glaucescens Lowell Ahart, John Dittes 2010-7-31 17016 Lassen On the south side of the road, about 50 yards east of the large culvert, where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin 1516 Comment
  JEPS118281  Astragalus lentiginosus var. salinus Lowell Ahart, John Dittes 2011-6-20 17510 Lassen Forest floor, near the edge of the Ash Valley Road, 3,120 feet south of Ash Creek Campground, about 6.5 miles (air) southeast of Adin 1511 Comment
  JEPS120875  Veronica peregrina subsp. xalapensis Lowell Ahart, John Dittes, Todd Sloat 2013-6-8 18744 Lassen About 30 yards N of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley. Comment
  JEPS121279  Panicum Lowell Ahart, John Dittes 2013-7-23 18909 Lassen On the E side the gravel road, N-S road W of Big Canal, 0.76 Mile N of CA 299, 4.9 air miles NE of Bieber, Big Valley. Comment
  JEPS121283  Elatine Lowell Ahart, John Dittes 2013-7-22 18882 Lassen Man-made pond, about 150 yards N of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley. Comment
  JEPS121294  Rumex triangulivalvis Lowell Ahart, John Dittes 2013-7-22 18867 Lassen 30 yards S of the man-made pond, about 120 yards E of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley. Comment
  JEPS124372  Penstemon rydbergii var. oreocharis Lowell Ahart, John Dittes 2015-7-13 20316 Lassen Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. Comment
  JEPS124376  Monolepis nuttalliana Lowell Ahart, John Dittes 2015-7-13 20311 Lassen Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. Comment
  JEPS126531  Microseris nutans Lowell Ahart, John Dittes 2016-6-7 21022 Lassen About 10 yards west of State Highway 299, Big Valley Mountains, 0.4 mile (air) northeast of Big Valley Summit, 5.0 miles (air) southwest of Bieber. Comment
  JEPS126568  Juncus tiehmii Lowell Ahart, John Dittes 2016-6-7 20989 Lassen 50 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. Comment
  JEPS95902  Symphyotrichum frondosum Lowell Ahart and Vernon H. Oswald 1999-9-13 8210 Lassen just S of the parking area, about 1 mi S of the sign in station, Honey Lake Wildlife Area, 5 1/2 mi (air) SE of Standish 1207 Comment
  JEPS95904  Salsola tragus Lowell Ahart and Vernon H. Oswald 1999-9-13 8205 Lassen on the east side of the dirt road and 1/2 mile south of the sign in station; Honey Lake Wildlife Area; 4 1/2 miles (air) southeast of Standish 1207 Comment
  RSA0035398  Veronica peregrina subsp. xalapensis Lowell Ahart, John Dittes 2008-6-20 14924 Lassen About 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1263 Comment
  RSA0035909  Montia linearis Lowell A. Ahart, John Dittes 2008-6-20 14938 Lassen About 100 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1263 Comment
  RSA0039370  Thysanocarpus curvipes var. curvipes Lowell Ahart 2005-6-2 11953 Lassen Along a poor dirt road, about 1/2 mile west of the Anderson Ranch home, Long Valley, about 4 3/4 miles (air) northwest of the intersection of Scott Road and Highway 70, 6.6 miles (air) northwest of Hallelujah Junction. 1512 Comment
  RSA0039528  Plagiobothrys cusickii Lowell A. Ahart, John Dittes 2012-7-9 18284 Lassen About 100 yards southeast of the tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  RSA0105581  Plagiobothrys mollis var. mollis Lowell Ahart, John Dittes 2013-7-23 18898 Lassen About 50 yards west of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  RSA715626  Bromus tectorum L. Ahart, John Dittes 2005-6-1 11909 Lassen On the north side of Scott Road, east side of the railroad underpass, Long Valley, about 4 3/4 miles (air) north of the intersection of Scott Road and Highway 70, 6.2 miles (air) northwest of Hallelujah Junction. Comment
  RSA715987  Phacelia heterophylla subsp. virgata L. Ahart, John Dittes 2005-6-2 11952 Lassen Along a poor dirt road, about 1/2 mile west of the Anderson Ranch home, Long Valley, about 4.75 miles (air) northwest of the intersection of Scott Road and Highway 70, 6.6 miles (air) northwest of Hallelujah Junction 1513 Comment
  RSA795324  Eriogonum umbellatum var. polyanthum L. Ahart, John Dittes 2010-7-31 16988 Lassen About 2300 feet north of where the road crosses Hunsinger Draw, 1.9 air miles northwest of Moll Reservoir, 2.8 air miles west of Ash Valley, 8.4 air miles southeast of Adin. 1511 Comment
  UCD125893  Trichostema simulatum Lowell Ahart 1974-7-9 526 Lassen along Eagle Lake Road, about 3 miles west of Susanville. 1584 Comment
  UCSB64021  Gayophytum humile Ahart, Lowell; Howell, John 1974-7-9 Lassen Near S edge of Eagle Lake 1584 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
  CHSC103430  Baccharis pilularis Lowell Ahart 2009-11-12 16506 Mendocino On the south side of the paved road, on the south side of the Russian River, about the high water line of Lake Mendocino, about 200 yards south of Highway 20. 237 Comment
  CHSC103450  Solanum americanum Lowell Ahart 2009-11-12 16540 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
  CHSC112285  Poa kelloggii Lowell Ahart; John Dittes, Josephine Guardino 2013-4-24 18571 Mendocino Outer North Coast Range. Redwood forest south of Mountain View Road, 1.9 miles (air) west of Boonville. 339 Comment
  CHSC112299  Cakile maritima Lowell Ahart; John Dittes, Josephine Guardino 2013-4-26 18604 Mendocino North Coast. At the base of eroding cliffs, 1.1 miles (air) southeast of Anchor Bay, 2.0 miles (air) northwest of mouth of Gualala River. 3 Comment
  CHSC112322  Plantago erecta Lowell Ahart; John Dittes, Josephine Guardino 2013-4-24 18584 Mendocino North Coast. South of the entrance and road, 2.9 miles (air) northwest of Pt. Arena, 3.3 miles (air) southwest of Manchester. 15 Comment
  JEPS115135  Baccharis glutinosa Lowell Ahart 2009-11-12 16507 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
  CDA32112  Hemizonia pungens subsp. pungens L. Ahart, John Dittes 2008-8-21 15226 Merced Thirty yards southeast of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. Comment
  CDA42990  Trifolium microcephalum L. Ahart, John Dittes, Josephine Guardino 2008-4-11 14623 Merced About 40 yards southeast of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. Comment
  CHSC100014  Leptochloa fusca subsp. fascicularis Lowell Ahart; John Dittes 2008-8-21 15256 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
  CHSC98820  Capsella bursa-pastoris Lowell Ahart; John Dittes, Josephine Guardino 2008-4-11 14650 Merced Along the fence, about 20 yards east of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. 53 Comment
  CHSC98826  Delphinium variegatum subsp. variegatum Lowell Ahart; John Dittes, Josephine Guardino 2008-4-12 14667 Merced On dry soil,slopes of mounds, about 1/2 mile southt 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
  CHSC99170  Spergularia media Lowell Ahart; John Dittes, Josephine Guardino 2008-4-11 14627 Merced On dry soil above the high margins of vernal pools, about 40 yards southeast of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. 53 Comment
  JEPS114464  Cucurbita foetidissima Lowell Ahart, John Dittes 2008-8-21 15237 Merced Along the west fence, on the north side of Dutchman Slough, about 1/4 mile southwest of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced 49 Comment
  JEPS114549  Cynodon dactylon Lowell Ahart, John Dittes 2008-8-21 15261 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
  JEPS114675  Bromus madritensis subsp. rubens Lowell Ahart, John Dittes, Josephine Guardino 2008-4-11 14639 Merced Grassy mounds, about 40 yards southeast of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced 53 Comment
  RSA0108925  Psilocarphus oregonus Lowell Ahart, John Dittes, Josephine Guardino 2008-4-12 14663 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
  RSA769018  Cucurbita foetidissima L. Ahart, John Dittes 2008-8-21 15237 Merced Along west fence, north side of Dutchman Slough, about 0.25 mile southwest of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. 50 Comment
  RSA770104  Atriplex serenana var. serenana L. Ahart, John Dittes 2008-8-21 15233 Merced At wire gate on south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced 53 Comment
  CDA31945  Elytrigia pontica subsp. pontica L. Ahart, John Dittes 2008-8-25 15307 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 Comment
  CDA34216  Epilobium pygmaeum L. Ahart, J. Dittes 2010-8-3 17058 Modoc About 10 yards east of the fence, south edge of the meadow, Ash Creek State Wildlife Area, 2300 feet north of Lassen County Line, about 3.6 miles (air) west of Adin, about 8 miles (air) northeast of Bieber, Big Valley. Comment
  CDA34730  Chrysothamnus nauseosus subsp. consimilis L. Ahart, John Dittes 2010-8-3 17052 Modoc About 3 yards east of the fence, south edge of the meadow, Ash Creek State Wildlife Area, 2300 feet north of Lassen County Line, about 3.6 miles (air) west of Adin, about 8 miles (air) northeast of Bieber, Big Valley. Comment
  CHSC100375  Crypsis vaginiflora Lowell Ahart; John Dittes 2008-8-26 15353 Modoc On the bottom of Rose Creek, 550 feet southwest of confluence of Rose Creek and Pit River, on the northwest side of unnamed road,, 2860 feet east of intersection with County Road 85a, 9.3 miles (air) north-northeast of Lookout. 1276 Comment
  CHSC100419  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
  CHSC100526  Epilobium brachycarpum Lowell Ahart; John Dittes 2008-8-25 15277 Modoc On the west side of the Pit River, about 1/8 mile east of County Road 91, about 3.8 miles (air) north-notheast of Lookout. 1273 Comment
  CHSC106179  Lactuca serriola Lowell Ahart; John Dittes 2010-8-30 17073 Modoc About 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 miles (air) west of Adin, about 8.0 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC106183  Artemisia douglasiana Lowell Ahart; John Dittes 2010-8-31 17098 Modoc East side of Elkins Lane, about 10 yards south of the bridge across Ash Creek, Ash Creek State Wildlife Area, 4215 feet north of Lassen County Line, about 4.3 miles (air) west of Adin, about 7.7 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC106194  Polygonum aviculare Lowell Ahart; John Dittes 2010-8-31 17136 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
  CHSC106201  Chenopodium desiccatum Lowell Ahart; John Dittes 2010-8-31 17111 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
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Jul 20 2019
  CHSC106213  Rumex fueginus Lowell Ahart; John Dittes 2010-8-31 17126 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
  CHSC106326  Rumex salicifolius var. triangulivalvis Lowell Ahart; John Dittes 2010-8-31 17117 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
  CHSC106334  Prunus subcordata Lowell Ahart; John Dittes 2010-8-30 17062 Modoc Around a large rock, near the homestead, about 100 yards east of the fence, Ash Creek State Wildlife Area, 2300 feet north of Lassen County line, 3.6 miles (air) west of Adin, about 8.0 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC106342  Helianthus annuus Lowell Ahart; John Dittes 2010-8-30 17072 Modoc About 150 yards west of the fence, south edge of the meadow, Ash Creek State Wildlife Area, 2,300 feet north of Lassen County Line, about 3.6 miles (air) west of Adin, about 8.0 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC106346  Epilobium brachycarpum Lowell Ahart; John Dittes 2010-8-30 17067 Modoc About 15 yards west of the fence, south edge of the meadow, Ash Creek State Wildlife Area, 2,300 feet north of Lassen County Line, about 3.6 miles (air) west of Adin, about 8.0 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC108019  Carex pellita Lowell Ahart; John Dittes 2011-6-21 17528 Modoc About 100 yards west 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. 1268 Comment
  CHSC109643  Plagiobothrys cusickii Lowell Ahart; John Dittes 2012-7-11 18332 Modoc Vernal pool like areas on the bottom of a gravel pit, north edge of the meadow, about 1/8 mile east of the parking area on the east side of Elkins Lane, Ash Creek State Wildlife Area, about 4 miles (air) west of Adam, about 8 miles (air) northeast of Bieber, Big Valley. 1266 Comment
  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
  CHSC112098  Phalaris arundinacea Lowell Ahart; John Dittes 2012-7-10 18320 Modoc Along a deep drainage, northeast of the old homestead, Ash creek State Wildlife Area, about 3.4 miles (air) wast of Adin, about 8.2 miles (air) northeast of Bieber, Big Valley. 1266 Comment
  CHSC112434  Spirodela polyrhiza Lowell Ahart; John Dittes, Todd Sloat 2013-6-8 18758 Modoc On the north side of levee, about 100 yards north of the Parking Area, northwest of the old barn, Ash Creek State Wildlife Area, about 3.9 miles (air) west of Adin, about 7.7 miles (air) northeast of Bieber, Big Valley. 1266 Comment
  CHSC112773  Veronica catenata Lowell Ahart; John Dittes 2013-7-24 18922 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
  CHSC112817  Isatis tinctoria Lowell Ahart; John Dittes 2013-7-25 18962 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
  CHSC115513  Agrostis gigantea Lowell Ahart; John Dittes 2015-7-16 20370 Modoc North edge of Ash Creek (destroyed), southeast of the gravel pit (destroyed), about 1/8 mile east of the parking area on the east side of Elkins Lane, Ash Creek State Wildlife Area, about 4 miles (air) west of Adin, about 8 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC115561  Phacelia egena Lowell Ahart; John Dittes 2015-7-15 20339 Modoc About 400 yards northeast of the old barn, on the south side of the overgrown road, Ash Creek State Wildlife Area, about 3.9 miles (air) west of Adin, about 7.7 miles (air) northeast of Bieber, Big Valley. 1269 Comment
  CHSC117039  Castilleja campestris subsp. campestris Lowell Ahart; John Dittes 2016-6-6 20960 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
  CHSC117238  Plagiobothrys hispidulus Lowell Ahart; John Dittes 2016-7-16 21255 Modoc Strand of the second pond, south of Ash Creek Canal (now filled in), south of Ash Creek, Ash Creek State Wildlife Area, 0.79 miles (air) south of County Road 87, 1.75 miles (air) west of Adin, Big Valley. 1273 Comment
  CHSC117258  Polygonum ramosissimum subsp. prolificum Lowell Ahart; John Dittes 2016-7-14 21191 Modoc West 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
  CHSC117261  Lepidium campestre Lowell Ahart; John Dittes 2016-7-14 21162 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
  CHSC99246  Lemna minuta Lowell Ahart; John Dittes 2008-6-21 14994 Modoc On shallow water on water on the south side and east end of a large culvert, a part 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
  CHSC99268  Eleocharis acicularis var. acicularis Lowell Ahart; John Dittes 2008-6-21 14992 Modoc 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
  CHSC99272  Thlaspi arvense Lowell Ahart; John Dittes 2008-6-21 15004 Modoc About 30 yards west of the levee, along a deep natural drainage, open meadow area, in Big Valley, about 3.6 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 6.4 miles (air) northeast of Bieber. 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
  CHSC99768  Ranunculus aquatilis var. diffusus Lowell Ahart; John Dittes 2008-6-21 14989 Modoc 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
  CHSC99774  Vulpia myuros var. myuros Lowell Ahart; John Dittes 2008-6-21 15009 Modoc On dry soil along a deep natural drainage, about 30 yards west of the levee, mountain meadow, in Big Valley, about 3.6 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 6.4 miles (air) northeast of Bieber. 1269 Comment
  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
  CHSC99948  Onopordum acanthium Lowell Ahart; John Dittes 2008-8-25 15275 Modoc On the west bank (flood plane) of the Pit River, about 1/8 mile east of County Road 91, about 3.8 miles (air) north-northeast of Lookout. 1273 Comment
  CHSC99953  Acroptilon repens Lowell Ahart; John Dittes 2008-8-25 15309 Modoc On the east bank (flood plane) of the Pit River, about 1/8 mile east of County Road 91, about 3.8 miles (air) north-northeast of Lookout. 1273 Comment
  CHSC99955  Plantago major Lowell Ahart; John Dittes 2008-8-25 15315 Modoc On the east bank (flood plane) of the Pit River, about 1/8 mile east of County Road 91, about 3.8 miles (air) north-northeast of Lookout. 1273 Comment
  CHSC99960  Blepharipappus scaber Lowell Ahart; John Dittes 2008-8-25 15295 Modoc On the west side of the Pit River, about 1/8 mile east of County Road 91, about 3.8 miles (air) north-northeast of Lookout. 1273 Comment
  CHSC99966  Rosa woodsii subsp. ultramontana Lowell Ahart; John Dittes 2008-8-26 15348 Modoc Southeast side of Rose Creek, 750 feet southwest of confluence of Rose Creek and Pit River, on the northwest side of unnamed road, 2660 feet east of intersection with County Road 85a, 9.3 miles (air) north-northeast of Lookout. 1276 Comment
  JEPS114397  Eryngium articulatum Lowell Ahart, John Dittes 2008-8-25 15285 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-notheast of Lookout 1273 Comment
  JEPS114497  Amelanchier utahensis Lowell Ahart, John Dittes 2008-8-25 15326 Modoc On the east side of East Gouger Neck Road, east of the Pit River, 2.1 miles by road from County Road 91, 5.6 miles (air) northeast of Lookout 1293 Comment
  JEPS114684  Gratiola neglecta Lowell Ahart, John Dittes 2008-6-21 14993 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
  JEPS114835  Koeleria macrantha Lowell Ahart, John Dittes 2008-6-21 15015 Modoc On the north side of the dirt road, in Big Valley, about 3.8 miles (air) north of the Headquarters at Ash Creek State Wildlife Area, about 6.5 miles (air) northeast of Bieber 1264 Comment
  JEPS114847  Agropyron desertorum Lowell Ahart, John Dittes 2008-6-21 15016 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
  JEPS117298  Anthemis cotula Lowell Ahart, John Dittes 2010-8-31 17097 Modoc Bottom of a small wash, on the east side of Elkins Lane, about 100 yards north of the bridge across Ash Creek, Ash Creek State Wildlife Area, about 4.3 miles (air) west of Adin, about 7.7 miles (air) northeast of Bieber, Big Valley 1267 Comment
  JEPS117315  Madia glomerata Lowell Ahart, John Dittes 2010-8-30 17076 Modoc About 15 yards west of the fence, south edge of the meadow, Ash Creek State Wildlife Area, 2,300 feet north of Lassen County Line, about 3.6 miles (air) west of Adin, about 8.0 miles (air) northeast of Bieber, Big Valley 1267 Comment
  JEPS117467  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
  JEPS118265  Psilocarphus oregonus Lowell Ahart, John Dittes 2011-6-22 17552 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 Aden [Adin], 10 miles (air) east of Lookout, Big Valley 1264 Comment
  JEPS119667  Lupinus lepidus var. sellulus Lowell Ahart, John Dittes 2012-7-11 18343 Modoc About 1/2 mile southeast of the Pilot Butte Parking Lot, north edge of Ash Creek floodplain, about 1.5 miles (air) south of County Road 87, about 7.5 miles (air) west of Adin, about 10.2 miles (air) east of Lookout, Big Valley. Comment
  JEPS120884  Castilleja chromosa Lowell Ahart, John Dittes, Todd Sloat 2013-6-8 18765 Modoc About 300 yards E of the Parking Area, E of the old barn, Ash Creek Wildlife Area, about 3.9 air miles W of Adin, about 7.7 air miles NE of Bieber. Big Valley. Comment
  JEPS120893  Astragalus curvicarpus var. curvicarpus Lowell Ahart, John Dittes, Todd Sloat 2013-6-8 18761 Modoc About 300 yards E of Parking Area, E of the old barn, Ash Creek Wildlife Area, about 3.9 air miles W of Adin, about 7.7 air miles NE of Bieber. Big Valley. Comment
  JEPS121185  Elatine californica Lowell Ahart, John Dittes 2013-7-24 18918 A Modoc Around a man-made pond, north side of Ash Creek floodplain, 0.54 air miles southeast of Pilot Butte parking area, 1.1 air miles south of County Road 87, 6.8 air miles west of Adin, Big Valley. Comment
  JEPS121199  Lagophylla ramosissima Lowell Ahart, John Dittes 2013-7-25 18946 Modoc 30 yards N of the E-W fence, S edge of Ash Creek floodplain, NE of Patterson Homestead, E of Elkins Lane, 1.0 air mile S of County Road 87, 3.14 air miles W of Adin, Big Valley. Comment
  JEPS121215  Artemisia douglasiana Lowell Ahart, John Dittes 2013-7-24 18935 Modoc South bank of Ash Creek Canal, S of Ash Creek, Ash Creek State Wildlife Area, 0.79 air miles S of County Road 87, 1.73 air miles W of Adin, Big Valley. Comment
  JEPS123850  Verbascum blattaria Lowell Ahart, John Dittes 2015-7-17 20401 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
  JEPS124311  Carduus nutans Lowell Ahart, John Dittes 2015-7-15 20341 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
  JEPS126543  Castilleja tenuis Lowell Ahart, John Dittes 2016-6-6 20962 -A 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
  JEPS126551  Amsinckia menziesii Lowell Ahart, John Dittes 2016-6-6 20942 Modoc About 50 yards southwest of the intersection of County Road 87 and Access Road to Pilot Butte Parking Area, northeast base of Pilot Butte, 3.8 miles (air) east of Lookout, 7.5 miles (air) west of Adin, Ash Creek State Wildlife Area. Comment
  JEPS127153  Mimulus suksdorfii Lowell Ahart, John Dittes 2016-7-16 21250 Modoc South of Ash Creek, Ash Creek State Wildlife Area, 0.79 mile (air) south of County Road 87, 1.75 miles (air) west of Adin, Big Valley. Comment
  JEPS127288  Mimulus breviflorus Lowell Ahart, John Dittes 2016-7-14 21183 -A 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
  JEPS127319  Equisetum laevigatum Lowell Ahart, John Dittes 2016-7-14 21211 -B 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
  RSA0037175  Poteridium annuum Lowell A. Ahart, John Dittes 2012-7-11 18341 Modoc Along a poor mowed road, about 1/2 mile southeast of the Pilot Butte Parking Lot, north edge of Ash Creek floodplain, about 1.5 miles (air) south of County Road 87, about 7.5 miles (air) west of Adin, about 10.2 miles (air) east of Lookout, Big Valley. 1260 Comment
  RSA767494  Centaurea repens L. Ahart, John Dittes 2010-8-31 17093 Modoc South of parking area west of old barn, on west side of Elkins Lane, Ash Creek State Wildlife Area, 320 feet north of Lassen County line, about 4.4 air miles west of Adin, about 7.2 air miles northeast of Bieber, Big Valley 1266 Comment
  RSA795597  Hemizonia lobbii L. Ahart, John Dittes 2010-8-30 17059 Modoc Large vernal pool, about 5 yards east of the fence, south edge of the meadow, Ash Creek State Wildlife Area, 2300 feet north of Lassen County Line, about 3.6 air miles west of Adin, about 8.0 air miles northeast of Bieber, Big Valley. 1268 Comment
  SBBG128118  Ericameria nauseosa var. oreophila L. Ahart, J. Dittes 2010-8-30 17052 Modoc S edge of the meadow, Ash Crk State Wildlife Area, 2300 feet N of Lassen County Line, ca. 3.6 mi W of Adin, ca. 8 mi NE of Bieber, Big Valley 1267 Comment
  SBBG128255  Chrysothamnus viscidiflorus subsp. viscidiflorus L. Ahart, J. Dittes 2010-8-30 17061 Modoc near the homestead, ca. 100 yards E of the fence, Ash Crk State Wildlife Area, 2300 feet N of Lassen County Line, ca. 3.6 mi W of Adin, ca. 8 mi NE of Bieber, Big Valley 1267 Comment
  CDA34670  Symphyotrichum subulatum var. parviflorum L. Ahart 2009-10-27 16476 Napa Below high water line of Lake Berryessa, about 400 yards east of Eticuera Creek, about 300 yards east of Eticuera Parking Area at the northeast end of the causeway, on south side of Berryessa Knoxville Road, on the bottom of an unnamed creek, about 20 miles (air) northwest of Winters. Comment
  CHSC102264  Cypselea humifusa Lowell Ahart 2009-10-27 16475 Napa Below the high water line of Lake Berryessa, about 400 yards east of Eticuera Creek, about 300 yards east of Eticuera Parking Area at the northeast end of the causeway, on the south side of Berryessa Knoxville Road, about 20 miles (air) northwest of Winters. 130 Comment
  CHSC102297  Sonchus asper subsp. asper Lowell Ahart 2009-10-12 16429 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
  CHSC103004  Gnaphalium palustre Lowell Ahart 2009-10-12 16422 Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile soutwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 133 Comment
  CHSC103012  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2009-10-12 16437 Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile soutwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 133 Comment
  CHSC43811  Athysanus pusillus Lowell Ahart 1976-3-7 1019 Napa On a hillside about 1/4 mile south of the road, about 2 miles south-west of the Monticello Dam. 457 Comment
  JEPS115682  Verbena lasiostachys var. lasiostachys Lowell Ahart 2009-10-27 16495 Napa Below the high water line of Lake Berryessa, about 50 yards east of Eticuera Creek, about 100 yards south of Eticuera Parking Area at the northeast end of the causeway, on the south side of Berryessa Knoxville Road, about 20 miles (air) northwest of Winte 130 Comment
  JEPS115742  Eremocarpus 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 Winte 133 Comment
  RSA769187  Mentha X piperita L. Ahart 2009-10-12 16439 Napa 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 air miles west of Winters 135 Comment
  SBBG128014  Solanum rostratum L. Ahart 2009-10-27 16494 Napa below the high water line of Lake Berryessa, ca. 100 yards E of Eticuera Crk,ca. 50 yards S of Eticuera Parking Area at the NE end of the causeway, on the S side of Berryessa Knoxville Rd, ca. 20 mi (air) NW ofWinters 129 Comment
  CDA22629  Eriogonum nudum var. deductum L. Ahart 2004-8-9 11364 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 3/4 mile (air) south of Catfish Lake, about 2 3/4 miles east of the east end of Bowman Lake. Comment
  CDA33213  Juncus chlorocephalus L. Ahart 2005-7-31 12244 Nevada Between the curve and below the bridge on old Highway 80, east of Donner Pass and Donner Summit. Comment
  CDA38861  Orthilia secunda L. Ahart 2004-8-17 11374 Nevada On the South edge of a small snow lake, along small branch of Jackson Creek, about 300 yards east of Jackson Lake, at the north base of English Mountain. 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
  CHSC108302  Bulbostylis capillaris Lowell Ahart 2011-7-23 17601 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
  CHSC108306  Juncus hemiendytus var. hemiendytus Lowell Ahart 2011-7-23 17603 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
  CHSC110927  Chamaesyce maculata Lowell Ahart 2012-7-28 18408 Nevada About 10 yards west of the Pioneer Trail, about 150 yards northeast of the PG and E Pavilion and restrooms, on the east side of Bowman Lake Road, north of the bridge across the Bear River, Bear Valley. 1433 Comment
  CHSC110935  Dysphania botrys Lowell Ahart 2012-7-28 18406 Nevada About 10 yards west of the Pioneer Trail, about 150 yards northeast of the PG and E Pavilion and restrooms, on the east side of Bowman Lake Road, north of the bridge across the Bear River, Bear Valley. 1433 Comment
  CHSC118537  Equisetum laevigatum Lowell Ahart; John Dittes, Josephine Guardino 2017-6-27 21434 Nevada Mountainside, 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. 1938 Comment
  CHSC31992  Trifolium longipes subsp. hansenii L. Ahart 1974-6-11 487 Nevada In meadow by the sign that gives info about Bowman Dam, a little north of Bowman Dam. 1676 Comment
  CHSC31994  Sceptridium multifidum L. Ahart 1978-10-7 1816 Nevada Ca. 4 mi w of Bear Valley along Hwy 20, from Bear Valley go to the top of the mt, when rd crosses the first stream. 1400 Comment
  CHSC43326  Acer macrophyllum Lowell Ahart 1976-5-6 1102 Nevada along a small stream, near the edge of the road, near the Malakoff Diggings, Nevada County, California. 975 Comment
  CHSC43388  Stellaria calycantha Lowell Ahart 1974-6-11 488 Nevada Along a small stream, north of the road, about 3 miles south of Bowman Dam. 1676 Comment
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Aug 27 2014
  CHSC45952  Polygonum douglasii subsp. spergulariiforme Lowell Ahart; John Thomas Howell 1980-9-9 2596 Nevada On the bottom of a small wash, about 1/2 mile north-east of Highway 89, on the north side of the road that takes you to the Prosser Creek Dam, north-east of Truckee. 1828 Comment
  CHSC69432  Kickxia elatine Lowell Ahart 1997-8-13 7851 Nevada Along the north side of Penn Valley Road, just west of the intersection of Pleasant Valley Road and Penn Valley Road, just south of Highway 20, about 1.5 miles west of Penn Valley. 426 Comment
  CHSC75798  Erigeron reductus var. reductus Lowell Ahart; Vernon H. Oswald 1999-7-26 8126 Nevada On the east side of Bowman Lake Road (Road 18), about 12 miles south of Bowman Dam. 1706 Comment
  CHSC75807  Eriogonum lobbii Lowell Ahart; Vernon H. Oswald 1999-7-26 8109 Nevada On a large bare rock outcrop, about 100 yards east of Grouse Ridge Road (Road 14) and east of the Lookout, about 6 miles northeast of Bowman Lake Road (Road 18), about 4 miles (air) south of Bowman Lake. 2316 Comment
  CHSC75813  Lewisia nevadensis Lowell Ahart; Vernon H. Oswald 1999-7-26 8112 Nevada In a meadow, about 75 yards east of Grouse Ridge Road (Road 14) and east of the Lookout, about 6 miles northeast of Bowman Lake Road (Road 18), about 4 miles (air) south of Bowman Lake. 2316 Comment
  CHSC75815  Potentilla drummondii Lowell Ahart; Vernon H. Oswald 1999-7-26 8111 Nevada In a meadow, about 50 yards east of Grouse Ridge Road (Road 14) and east of the Lookout, about 6 miles northeast of Bowman Lake Road (Road 18), about 4 miles (air) south of Bowman Lake. 2316 Comment
  CHSC78405  Cinna latifolia Lowell Ahart 2000-7-28 8619 Nevada On the south side of Fall Creek, about 150 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
  CHSC78504  Pseudostellaria sierrae Lowell Ahart 2000-8-10 8650 Nevada Mountain slope near dirt road and dry flat southeast of the cement dam across Fall Creek, about 1/4 mile east of where Fall Creek crosses Forest Highway 18, or Bowman Lake Road, about 5 miles (air) or 8 miles by road north of Highway 20 and Bear Valley. 1706 Comment
  CHSC78550  Agrostis idahoensis Lowell Ahart 2000-8-10 8639 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
  CHSC80805  Helianthella californica var. nevadensis Lowell Ahart 2001-7-21 8959 Nevada Near the edge of a large meadow, on the south side of the dirt road, about 50 yards east of the old sheep corral, northeast of Lake Van Norden, about 1 1/2 miles east of Soda Springs. 2063 Comment
  CHSC80817  Lepidium appelianum Lowell Ahart 2001-7-21 8962 Nevada On the south side of the dirt road, in the old sheep corral, northeast of Lake Van Norden, about 1 1/2 miles east of Soda Springs. 2063 Comment
  CHSC80851  Navarretia capillaris Lowell Ahart 2001-7-21 8971 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
  CHSC80864  Aconogonon phytolaccifolium Lowell Ahart 2001-7-21 8975 Nevada On the sides of a small dry stream, on the north side of the dirt road, about 100 yards northeast of the old sheep corral, northeast of Lake Van Norden, about 1 1/2 miles east of Soda Springs. 2063 Comment
  CHSC80909  Elymus trachycaulus subsp. trachycaulus Lowell Ahart 2001-7-21 8996 Nevada Near the edge of a large meadow, on the south side of the dirt road, 30 yards east of the old sheep corral, northeast of Lake Van Norden, about 1 1/2 miles east of Soda Springs. 2063 Comment
  CHSC80925  Arnica chamissonis Lowell Ahart 2001-7-27 9005 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
  CHSC80937  Plagiobothrys hispidulus Lowell Ahart 2001-7-27 9047 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
  CHSC80947  Acmispon americanus var. americanus Lowell Ahart 2001-7-27 9045 Nevada On a small gravel bar, 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
  CHSC81026  Trifolium monanthum subsp. parvum Lowell Ahart 2001-8-14 9155 Nevada On the north side of Meadow Lake Road (Forest Road 18), north of the first set of three large culverts where the road crosses Jackson Creek, closest to the east end of Bowman Lake and west of the major campgrounds and buildings. 1706 Comment
  CHSC82249  Carex praegracilis Lowell Ahart 2002-5-4 9586 Nevada 40 yards 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) southeast of Rock Mountain. 243 Comment
  CHSC82282  Trifolium willdenovii Lowell Ahart 2002-5-4 9582 Nevada Steep road bank, south side of Perimeter Road, about 40 yards west of the private driveway, about 2.8 miles east of the intersection of Perimeter Road and White Oak Drive, about 5 miles (air) east of Camp Far West Dam, about 1 1/2 miles (air) southeast of Rock Mountain. 243 Comment
  CHSC87381  Arctostaphylos viscida subsp. viscida Lowell Ahart 2004-5-3 10867 Nevada West of the large flat area on the west side of Washington Road, about 1 1/4 miles north of the intersection of Highway 20 and Washington Road, about 4 1/4 miles (by road) south of Washington. 1241 Comment
  CHSC88209  Cassiope mertensiana Lowell Ahart 2004-8-9 11357 Nevada On the south edge of a large snow lake, drainage flows east into Secret Lake, east of a small dry meadow, on the very upper reaches of Jackson Creek, on the northeast side of English Mountain, about 3/4 mile (air) south of Catfish Lake, about 2 3/4 miles east of the east end of Bowman Lake. 2263 Comment
  CHSC92020  Acmispon americanus var. americanus Lowell Ahart 2005-7-23 12180 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
  CHSC92026  Gayophytum heterozygum Lowell Ahart 2005-7-23 12199 Nevada Meadow, under the power lines, about 100 yards west of the paved road, southwest of Lake Spaulding, about 1/2 mile north of Highway 20. 1572 Comment
  CHSC92097  Gayophytum heterozygum Lowell Ahart 2005-7-31 12223 Nevada In a small meadow and near a small wash, between the curve and below the bridge on old Highway 80, east of Donner Pass and Donner Summit. 2062 Comment
  CHSC92103  Plagiobothrys torreyi var. diffusus Lowell Ahart 2005-7-31 12215 Nevada Between the curve and below the bridge on old Highway 80, east of Donner Pass and Donner Summit. 2062 Comment
  CHSC92105  Erigeron miser Lowell Ahart 2005-7-31 12208 Nevada Between the curve and below the bridge on old Highway 80, east of Donner Pass and Donner Summit. 2062 Comment
  HSC97021  Juncus orthophyllus L. Ahart 2004-8-17 11380 Nevada W of large snow lake along Jackson Creek, about 350yds E of Jackson Lake at N base of English Mtn. 2059 Comment
  HSC97034  Ranunculus occidentalis var. occidentalis L. Ahart 2004-5-3 10871 Nevada W side of Washington Rd. 1.25 mi. N of intersection of Hwy. 20 and Washington Rd. 1241 Comment
  JEPS102330  Mimulus breweri Lowell Ahart 2001-8-14 9136 Nevada Bowman Lake, E end; N side of Meadow Lake Road (FS 18), N of first set of three large culverts where the road crosses Jackson Creek 1706 Comment
  JEPS102350  Cordylanthus tenuis subsp. tenuis Lowell Ahart 2001-8-8 9057 Nevada about 1 mi S of Skillman Flat Campground (along Burlington Ridge Road) 1219 Comment
  JEPS102377  Lonicera conjugialis Lowell Ahart 2001-7-27 9003 Nevada about 1 1/4 mi E of Soda Springs (both sides of dirt road, 300 yards W of old sheep corral, N of Lake Van Norden) 2063 Comment
  JEPS102386  Lotus purshianus var. purshianus Lowell Ahart 2001-7-27 9045 Nevada On a small gravel bar, 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
  JEPS102450  Agrostis variabilis Lowell Ahart 2001-8-14 9162 Nevada Near Round Valley, about 1 mile NW of Graniteville Road (Forest Road 18), about 3/4 mile (air) west of Jackson Meadow Reservoir Dam. 1981 Comment
  JEPS102491  Elymus trachycaulus subsp. subsecundus Lowell Ahart 2001-7-21 8997 Nevada Near the edge of a large meadow, on the south side of the dirt road, 30 yards east of the old sheep corral, NE of Lake Van Norden, about 1 1/2 miles east of Soda Springs. 2063 Comment
  JEPS102580  Delphinium glaucum Lowell Ahart 2001-7-21 8979 A Nevada On the bottom and sides of a small dry stream, on the north side of the dirt road, about 100 yards NE of the old sheep corral, NE of Lake Van Norden, about 1 1/2 miles east of Soda Springs. 2063 Comment
  JEPS102695  Eleocharis macrostachya Lowell Ahart 2001-7-27 9028 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
  JEPS102818  Plagiobothrys cusickii Lowell Ahart 2001-7-27 9007 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
  JEPS102833  Polygonum arenastrum Lowell Ahart 2001-8-14 9142 Nevada On north side of Meadow Lake Road (Forest Road 18), north of first set of three large culverts where road crosses Jackson Creek, closest to east end of Bowman Lake and west of major campgrounds and buildings. 1706 Comment
  JEPS102841  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
  JEPS103468  Trifolium oliganthum Lowell Ahart 2002-5-4 9581 Nevada Steep road bank, S side of Perimeter Road, ca 40 yards W of the private driveway, ca 2.8 miles E of the intersection of Perimeter Road and White Oak Drive, ca 5 miles (air) E of Camp Far West Dam, ca 1 1/2 miles (air) SE of Rock Mountain. 243 Comment
  JEPS104588  Juncus nevadensis Lowell Ahart 2003-7-25 10444 Nevada Log landing, on the west side of a poor road, about 100 yards north of the locked gate, about 1/8 mile north of Grouse Ridge Road, about 1/2 mile northeast of Bowman Lake Road (Forest Road 18) about 5 miles (air) north of Bear Valley and Highway 20. 1751 Comment
  JEPS104617  Agrostis thurberiana Lowell Ahart 2003-7-25 10446 Nevada Log landing in a logged over forest, on the w side of a poor road, ca 100 yd n of the locked gate, ca 1/8 mi n of Grouse Ridge Rd, ca 1/2 mi ne of Bowman Lake Rd (Forest Rd 18), ca 5 mi (air) n of Bear Valley and Highway 20. 1751 Comment
  JEPS105898  Dichanthelium acuminatum subsp. fasciculatum Lowell Ahart 2004-7-17 11277 Nevada Near small stream, upper reaches of Steephollow Creek, ca. 100 yd W of Hwy 20, ca. 150 yd S of intersection of Hwy 20 and Lowell Hill Rd, ca. 2 mi NW of Bear Valley, ca. 3 mi SE of the Omega Rest Area, ca. 16 mi (air) NE of Nevada City 1463 Comment
  JEPS106074  Cassiope mertensiana Lowell Ahart 2004-8-9 11357 Nevada On S edge of large snow lake, drainage flows E into Secret Lake, E of small dry meadow, on the upper reaches of Jackson Creek, on the NE side of English Mountain, ca. 3/4 mi (air) S of Catfish Lake, ca. 2 3/4 mi E of the E end of Bowman Lake 2263 Comment
  JEPS106099  Carex spectabilis Lowell Ahart 2004-8-9 11341 Nevada Near cliffs, on the east side of the very upper reaches of Jackson Creek, on the northeast side of English Mountain, about 3/4 mile (air) south of Catfish Lake, about 2 3/4 miles east of the east end of Bowman Lake 2162 Comment
  JEPS106260  Elymus glaucus subsp. jepsonii Lowell Ahart 2004-7-17 11275 Nevada Near small stream, upper reaches of Steephollow Creek, ca. 100 yd W of Hwy 20, ca. 150 yd S of intersection of Hwy 20 and Lowell Hill Rd, ca. 2 mi NW of Bear Valley, ca. 3 mi SE of the Omega Rest Area, ca. 16 mi (air) NE of Nevada City 1463 Comment
  JEPS106367  Callitriche verna Lowell Ahart 2004-8-17 11395 Nevada In a large snow lake, a part of Jackson Creek, about 400 yards east of Jackson Lake, at the north base of English Mountain 2071 Comment
  JEPS107532  Polygonum polygaloides subsp. kelloggii Lowell Ahart 2005-7-31 12229 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
  JEPS107536  Plagiobothrys hispidulus Lowell Ahart 2005-7-31 12214 Nevada Between the curve and below the bridge on old Highway 80, east of Donner Pass and Donner Summit 2062 Comment
  JEPS107552  Trifolium longipes subsp. hansenii Lowell Ahart 2005-7-31 12220 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
  JEPS107556  Apocynum androsaemifolium Lowell Ahart 2005-7-31 12202 Nevada Between the curve and below the bridge on old Highway 80, east of Donner Pass and Donner Summit 2062 Comment
  JEPS107841  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
  JEPS114404  Mimulus guttatus Lowell Ahart 2008-7-18 15134 Nevada About 50 yards south of Highway 20, south of the intersection of Highway 20 and Bowman Lake Road, southeast end of Bear Valley 1439 Comment
  JEPS114780  Achnatherum lemmonii Lowell Ahart 2008-7-18 15117 Nevada Along the P. G. & E. water ditch at the 3 1/4 mile mark, about one mile southwest of Highway 2o (by ditch), about 1/2 mile south of Bear Valley 1744 Comment
  JEPS128572  Veronica serpyllifolia subsp. humifusa Lowell Ahart, John Dittes 2017-7-19 21618 Nevada Northeast 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
  JEPS128621  Epilobium brachycarpum Lowell Ahart, John Dittes 2017-7-18 21550 Nevada 1014 feet southeast of intersection of Boca Road and Prosser Dam Road, meadow northwest of Prosser Creek Reservoir Dam, about 4.6 miles (air) northeast of Truckee. Comment
  JEPS128633  Cordylanthus tenuis subsp. tenuis Lowell Ahart, John Dittes 2017-7-19 21581 Nevada About 100 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
  JEPS128641  Trifolium wormskioldii Lowell Ahart, John Dittes 2017-7-19 21560 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
  JEPS128653  Veronica peregrina subsp. xalapensis Lowell Ahart, John Dittes 2017-7-19 21602 Nevada North edge of Carpenter Meadow, about 100 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
  JEPS128705  Lotus corniculatus Lowell Ahart, John Dittes, Josephine Guardino 2017-6-29 21517 Nevada East edge of Prosser Road, about 0.1 mile northeast of intersection of Prosser Roas and State Highway 89, about 1.3 miles (air) northeast of downtown Truckee. Comment
  JEPS98341  Erigeron inornatus var. inornatus Lowell Ahart 2000-8-10 8651 Nevada near dirt road and dry flat SE of cement dam on Fall Creek, 1/4 mi E of Forest Hwy 18 (Bowman Road), 5 air miles (8 road miles) N of Bear Valley and Hwy 20 1706 Comment
  JEPS98394  Mitella breweri Lowell Ahart 2000-7-28 8620 Nevada just N of a small spring, E side of Fall Creek 200 yds E of Forest Hwy 18 (Bowman Lake Rd), 5 air miles (8 rd miles) N of Hwy 20 and Bear Valley 1706 Comment
  JEPS98533  Polygonum phytolaccifolium Lowell Ahart 2000-7-28 8621 Nevada Just north of a small spring, on the east side of Fall Creek, about 200 yards east of where Fall Creek crosses Forest Highway 18, or Bowman Lake Road, about 5 miles (air) or 8 miles by road north of Highway 20 and Bear Valley. 1706 Comment
  RSA0035400  Erythranthe guttata Lowell Ahart 2008-7-18 15134 Nevada About 50 yards south of Highway 20, south of the intersection of Highway 20 and Bowman Lake Road, southeast end of Bear Valley. 1439 Comment
  RSA700366  Carex subfusca L. Ahart 2004-7-17 11264 Nevada Very upper reaches of Steephollow Creek, about 40 yards west of Highway 20, about 150 yards south of the intersection of Highway 20 and Lowell Hill Road, about 2 miles northwest of Bear Valley., About 3 miles southeast of the Omega Rest Area, about 16 miles (air) northeast of Nevada City. 1463 Comment
  RSA700670  Eleocharis quinqueflora L. Ahart 2004-8-9 11351 Nevada On 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. 2264 Comment
  RSA701232  Muhlenbergia filiformis L. Ahart 2004-8-9 11348 Nevada Bottom of a small dry snow lake, on the east side of the very upper reaches of Jackson Creek, on the northeast side of English Mountain, about 3/4 mile (air) south of Catfish Lake, about 2 3/4 miles east of the east end of Bowman Lake. 2264 Comment
  RSA701234  Eriogonum umbellatum var. nevadense L. Ahart 2004-8-9 11365 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
  RSA716500  Lamium amplexicaule L. Ahart 2005-5-4 11596 Nevada Wood bridge across Dry Creek, about 3 miles east of the intersection of Camp Far West Road and Spenceville Road. 105 Comment
  SD147527  Eriogonum wrightii var. subscaposum Lowell Ahart 1980-10-8 2681 Nevada About 1 mile west of Weaver Lake. 1700 Comment
  SEINET10663545  Poa cusickii subsp. epilis Lowell Ahart 2004-8-9 Ahart 11359 Nevada T18N, R13E, northeast 1/4 Section 6. 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 noertheast side of English Mountain, about 3/4 mile (air) south of Catfish Lake, about 2 3/4 miles east of the east end of Bowman Lake. 2291 Comment
  SEINET245590  Achnatherum occidentale Lowell Ahart 2004-7-17 11269 Nevada Very upper reaches of Steephollow Creek, about 100 yards west of Highway 20, about 150 yards south of the intersection of Highway 20 and Lowell Hill Road, about 2 miles northwest of Bear Valley, about 3 miles southeast of the Omega Rest Area, about 16 mil 1463 Comment
  CAS-BOT-BC71523  Pellaea mucronata var. californica Lowell Ahart 1985-1-10 4834 Nevada about 1/2 mile west of Lake Wildwood Dam 400 Comment
  CDA41903  Triphysaria pusilla L. Ahart 2002-5-5 9594 Nevada On the south side of McCourtney Road, west of the drainage, about 300 yards east of the intersection of McCourtney Road and White Oak Drive, about 1/4 mile southwest of where McCourtney Road crosses Rock Creek, about 2 3/4 miles (air) northeast of Camp Far West Dam. Comment
  CDA4410  Erigeron annuus L. Ahart 2002-5-5 9596 Nevada On the south side of McCourtney Road, west of the drainage, about 300 yards east of the intersection of McCourtney Road and White Oak Drive, about 1/4 mile southwest of where McCourtney Road crosses Rock Creek, about 2 3/4 miles (air) northeast of Camp Far West Dam. Comment
  SEINET13711326  Polygonum phytolaccifolium Lowell William Ahart, Lowell William Ahart 2001-1 8975 Nevada NE of Lake Van Norden, 1.5 Mi. E of Soda Springs (T17N, R14E, sec 25, NW 1/4) 6770 Ft. 2063 Comment
  CDA34547  Eragrostis pilosa L. Ahart 2007-11-13 14599 Placer East side of a shallow ditch, on the west side of Camp Far West Road, at the north edge of the town of Sheridan. Comment
  CHSC10622  Apocynum androsaemifolium Lowell Ahart 1962-8-11 Placer French Meadows, near The Big Trees. 1676 Comment
  CHSC81755  Pseudognaphalium thermale Lowell Ahart 2001-10-10 9338 Placer French Meadows Reservoir, about 1/4 mile northeast of the boat or trail access area on the northwest side of the reservoir, about 3/4 mile southwest of the bridge across the Middle Fork of the American River, about 1 3/4 miles southwest of Ahart Camp, about 22 miles (air) northeast of Forest Hill. 1591 Comment
  CHSC81760  Pseudognaphalium stramineum Lowell Ahart 2001-10-10 9341 Placer French Meadows Reservoir, near the boat of trail access area on the northwest side of the reservoir, about 1 mile southwest of the bridge across the Middle Fork of the American River, about 2 miles southwest of Ahart Camp, about 22 miles (air) northeast of Forest Hill. 1594 Comment
  CHSC82573  Erythranthe breweri Lowell Ahart 2002-7-22 9900 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
  CHSC82575  Glyceria borealis Lowell Ahart 2002-7-22 9907 Placer In a small lake, on the east side of the paved road to Lake Valley Reservoir, about 1/4 mile east of Yuba Gap and Highway 80. 1773 Comment
  CHSC82652  Madia glomerata Lowell Ahart 2002-7-22 9878 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
  CHSC82654  Polygonum douglasii subsp. douglasii Lowell Ahart 2002-7-22 9897 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
  CHSC82661  Bulbostylis capillaris Lowell Ahart 2002-7-22 9908 Placer On the south side 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. 1773 Comment
  CHSC82713  Leptosiphon harknessii Lowell Ahart 2002-7-22 9894 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
  CHSC96459  Poa annua Lowell Ahart; Brian Williams 2007-4-13 13665 Placer On the bottom of 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
  CHSC96477  Alopecurus saccatus Lowell Ahart; Brian Williams 2007-4-13 13660 Placer On the bottom of 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
  JEPS102536  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2001-10-10 9347 Placer French Meadows Reservoir, near boat or trail access area on northwest side of reservoir, about 1 mile southwest of bridge across Middle Fork of American River, about 2 miles southwest of Ahart Camp, about 22 miles (air) northeast of Forest Hill. 1594 Comment
  JEPS103408  Plantago major Lowell Ahart 2002-7-22 9892 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
  JEPS103490  Lotus purshianus var. purshianus Lowell Ahart 2002-7-22 9918 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
  JEPS103581  Glyceria borealis Lowell Ahart 2002-7-22 9907 Placer In a small lake, on the E side of the paved road to Lake Valley Reservoir, ca 1/4 mile E of Yuba Gap and Highway 80. 1773 Comment
  JEPS113107  Plagiobothrys stipitatus var. micranthus Lowell Ahart, Brian Williams 2007-4-13 13638 Placer Bottom of 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
  JEPS113115  Trifolium glomeratum Lowell Ahart, Brian Williams 2007-4-13 13645 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
  JEPS113167  Lupinus pachylobus Lowell Ahart, Brian Williams 2007-4-13 13643 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
  SEINET11268218  Lotus nevadensis var. nevadensis Lowell Ahart, Peter Ahart 2001-10-10 9345 Placer Below the high water line of French Meadows reservoir, near the boat or trail access area on the north west side of the reservoir, about 1 mile southwest of the bridge across the Middle Fork of the American River, about 2 miles southwest of Ahart Camp, about 22 miles(air) northeast of Forest Hill.; 0 1594 Comment
  CAS-BOT-BC138119  Alopecurus aequalis var. aequalis Lowell Ahart 1981-8-7 3022 Plumas Sierra Nevada. Lake ca. 1 mile northeast of Pilot Peak, along the dirt road from Onion Valley to Hopkins Creek, ca. 16 miles northeast of La Porte. Comment
  CAS-BOT-BC151823  Diplacus mephiticus Lowell Ahart 1986-7-25 5379 Plumas Along a side road, north of Cleghorn Bar Road, about 1 3/4 miles northwest of Finger Board, about 4 1/4 miles northwest of Pilot Peak 1828 Comment
  CAS-BOT-BC186626  Danthonia californica Lowell Ahart 1979-7-18 s.n. Plumas Ca. 2 mi NW of Pilot Pk. 1800 Comment
  CAS-BOT-BC247378  Poa pratensis Lowell Ahart 1981-7-21 2961 Plumas Near tunnel gold mine on Buzzards Roost Ridge, ca. 0.25 mi. E of the road, ca. 1.25 mi. N of Pilot Peak 2000 Comment
  CAS-BOT-BC262270  Eriogonum ursinum Lowell Ahart 1979-7-18 s.n. Plumas Ca 1 mi. W of Pilot Pk. 1800 Comment
  CAS-BOT-BC294281  Ericameria nauseosa var. speciosa Ahart; Jokerst 1985-10-4 5192 Plumas About 1 mile west of Pilot Peak, about 9 miles north-east of La Porte 1828 Comment
  CAS-BOT-BC317149  Packera streptanthifolia Lowell Ahart 1983-8-17 4322 Plumas West of Pilot Peak, near Onion Valley, near the Quincy La Porte Road, NE of La Porte 2000 Comment
  CAS-BOT-BC330981  Acer glabrum var. glabrum Lowell Ahart 1989-7-2 6348 Plumas NW side of Pilot Peak, about 10 miles NE of La Porte 2133 Comment
  CAS-BOT-BC451746  Claytonia lanceolata Lowell Ahart 1986-6-4 5325 Plumas South of the road where it crosses Onion Valley Creek, near Onion Valley, about 1 mile north-west of Pilot Pk., about 14 miles north-east of La Porte 1828 Comment
  CAS-BOT-BC78692  Pinus jeffreyi Ahart; Jokerst 1985-10-4 5191 Plumas about 1 mile west of Pilot Peak, about 9 miles north-east of La Porte 1828 Comment
  CDA32019  Mentha canadensis L. Ahart, J. Dittes, J. Guardino 2009-7-29 16243 Plumas Below the high water line of Lake Almanor, 1,849 feet northwest of Lake Almanor Dam. Comment
  CDA34165  Festuca occidentalis L. Ahart, J. Dittes 2009-7-14 16063 Plumas On the east side Forest Service Road 27N92, about 1.9 miles (air) southeast of Seneca, about 6 miles (air) south of Lake Almanor Reservoir Dam. Comment
  CDA43016  Juncus orthophyllus L. Ahart 2008-8-13 15162 Plumas East of La Porte Road, on the east bank of East Branch Creek, about 1 3/4 miles (air) south of Little Grass Valley Reservoir, about one mile northeast of La Porte. Comment
  CHSC100319  Sidalcea glaucescens Lowell Ahart 2008-8-13 15172 Plumas Large pile of dirt on the east side of La Porte Road, west of East Branch Creek, about 1 3/4 miles (air) south of Little Grass Valley Reservoir, about one mile northeast of La Porte. 1613 Comment
  CHSC100340  Juncus occidentalis Lowell Ahart 2008-7-9 15055 Plumas On the north side of the dirt road, about 1/4 mile southeeast of the Feather Fork Mine, road is east of the main road (intersection) and will take you east to the paved County Road, about 6 miles (air) northeast of La Porte. 1686 Comment
  CHSC100440  Cerastium fontanum subsp. vulgare Lowell Ahart 2008-9-10 15365 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
  CHSC101859  Poa secunda subsp. secunda Lowell Ahart; John Dittes, Josephine Guardino 2009-6-15 15891 Plumas About 200 yards northwest of Lake Almanor Dam, in mined over area. 1421 Comment
  CHSC101860  Lewisia nevadensis Lowell Ahart; John Dittes, Josephine Guardino 2009-6-15 15894 Plumas About 200 yards northwest of Lake Almanor Dam, in mined over area. 1421 Comment
  CHSC101921  Arceuthobium abietinum Lowell Ahart; John Dittes 2009-7-14 16069 Plumas North side of Forest Service Road 27N92, about 1.9 miles (air) southeast of Seneca, about 6 miles (air) south of Lake Alamanor Reservoir Dam 1677 Comment
  CHSC101933  Salix scouleriana Lowell Ahart; John Dittes 2009-7-15 16079 Plumas On dry rocky soil, along a small wash, on the south side of Forest Service Road 26N671, northeast of Forest Service Road 26N67, about 2.8 miles (air) southeast of Butt Valley Reservoir Dam. 1702 Comment
  CHSC101941  Senecio triangularis Lowell Ahart; John Dittes 2009-7-13 16045 Plumas On damp to wet soil, seep, on the north side of Forest Service Road 27N98, headwater of Clear Creek, about 2.0 miles (air) north of Butt Valley Reservoir Dam, about 3 miles (air) southwest of Lake Almanor Reservoir Dam. 1476 Comment
  CHSC101953  Carex fracta Lowell Ahart; John Dittes 2009-7-27 16172 Plumas On dry soil, about 10 yards northwest of the small pond, headwaters of Grizzly Gulch, 2.1 miles (air) northeast of Butt Valley Reservoir Dam. 1479 Comment
  CHSC102045  Equisetum hyemale subsp. affine Lowell Ahart; John Dittes 2009-7-27 16162 Plumas On damp soil, high area in a small pond, headwaters of Grizzly Gulch, 2.1 miles (air) northeast of Butt Valley Reservoir Dam. 1479 Comment
  CHSC102130  Rorippa curvisiliqua var. curvisiliqua Lowell Ahart; John Dittes 2009-7-27 16166 Plumas On damp soil, bottom of a small dry pond, headwaters of Grizzly Gulch, 2.1 miles (air) northeast of Butt Valley Reservoir Dam. 1479 Comment
  CHSC102150  Cirsium arvense Lowell Ahart; John Dittes, Josephine Guardino 2009-7-29 16242 Plumas On damp bare soil, below the high water line of Lake Almanor, 1,849 feet northwest of Lake Almanor Dam. 1591 Comment
  CHSC102390  Urtica dioica subsp. holosericea Lowell Ahart; John Dittes, Josephine Guardino 2009-7-21 16122 Plumas Edge of a meadow or seep, about 20 yards north of Forest Service Road 27N26, about 1000 feet northwest of Powerhouse at the north end of Butt Valley Reservoir, about 3 miles (air) southwest of Lake Almanor. 1302 Comment
  CHSC102748  Galium trifidum var. pacificum Lowell Ahart; John Dittes, Josephine Guardino 2009-7-22 16151 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
  CHSC103123  Stellaria crispa 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
  CHSC10773  Viola lobata subsp. lobata Lowell Ahart 1969-5-18 Plumas Near Slate Creek, 10 miles south of La Porte. 914 Comment
  CHSC108462  Cuscuta californica var. breviflora Lowell Ahart 2011-9-20 17679 Plumas Forest floor along the poor dirt road on the north side of Pilot Peak, about 9 miles (air) northeast of La Porte. 2072 Comment
  CHSC108466  Lonicera conjugialis Lowell Ahart 2011-9-17 17625 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 southwest of the paved road, about 1/8 mile west of Little Grass Valley Reservoir. 1595 Comment
  CHSC110381  Athyrium filix-femina var. cyclosorum Lowell Ahart 2012-9-5 18432 Plumas About 200 yards east of the County Road where it crosses the South Fork of the Feather River, about 3/4 mile (air) southwest of Pilot Peak, about 8-1/2 miles (air) northeast of LaPorte. 1889 Comment
  CHSC112610  Erythranthe guttata Lowell Ahart 2013-9-11 19027 Plumas Gravel bar on the west side of Chips Creek, about 20 yards south of Highway 70, about one mile southwest of Belden. 676 Comment
  CHSC113628  Penstemon roezlii Lowell Ahart 2014-8-31 19828 Plumas Strand, gravel bars along Black Rock Creek, about 200 yards southwest of the foot bridge across Black Rock Creek, about 200 yards southwest of the Black Rock, Little Grass Valley Reservoir, about 4 1/2 miles (air) northwest of La Porte. 1536 Comment
  CHSC11363  Leptosiphon ciliatus Lowell Ahart 1968-6-29 Plumas Near La Porte. 1371 Comment
  CHSC11365  Clarkia mildrediae subsp. lutescens Lowell Ahart 1971-7-27 Plumas South of La Porte. 1219 Comment
  CHSC113836  Panicum capillare Lowell Ahart 2014-9-9 19844 Plumas Below the high water line, on the sides of Sly Creek, Sky Creek Reservoir, about 7 miles (air) southwest of La Porte. 1069 Comment
  CHSC113856  Persicaria lapathifolia Lowell Ahart 2014-9-9 19841 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
  CHSC113880  Melilotus albus Lowell Ahart 2014-8-26 19792 Plumas In the center of the South Fork of the Feather River, Little Grass Valley Reservoir, about 200 yards southwest of the parking lot to the Pacific Crest Trail, about 1/4 mile southwest of the bridge across the South Fork of the Feather River, about 4 miles (air) north of La Porte. 1533 Comment
  CHSC115779  Monardella odoratissima subsp. pallida Lowell Ahart; John Deurloo 2015-8-25 20527 Plumas On the east side of Cold Water Creek, about 200 yards northeast of the bridge, east of the camp, about 5 1/2 miles (air) south of Bucks Lake. 1475 Comment
  CHSC115783  Symphyotrichum bracteolatum Lowell Ahart; Jason Deurloo 2015-8-25 20528 Plumas On the east side of Cold Water Creek, about 200 yards northeast of the bridge, east of the camp, about 5 1/2 miles (air) south of Bucks Lake. 1475 Comment
  CHSC116182  Agoseris heterophylla var. heterophylla Lowell Ahart 2015-7-4 20283 Plumas About 140 yards south of the paved road to Tamarack Flat, 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. 1712 Comment
  CHSC116186  Luzula cascadensis Lowell Ahart 2015-7-4 20280 Plumas About 150 yards south of the paved road to Tamarack Flat, 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. 1712 Comment
  CHSC117454  Triteleia ixioides subsp. anilina Lowell Ahart 2016-6-29 21069 Plumas Top of Table Mountain, about 2 miles (air) northwest of Tamarack Flat, about 4 miles (air) northwest of Little Grass Valley Reservoir Dam. 1857 Comment
  CHSC117575  Elymus multisetus Lowell Ahart 2016-7-9 21094 Plumas Top and on the east side Table Mountain, about 2 miles (air) northwest of Tamarack Flat, about 4 miles (air) northwest of Little Grass Valley Reservoir Dam. 1857 Comment
  CHSC32035  Melica fugax L. Ahart 1979-7-18 1972 Plumas Along and above road, ca. 1/8 mi s of Onion Valley, ca. 1 mi w of Pilot Peak; ca. 12 mi n of La Porte. 1800 Comment
  CHSC32043  Eriogonum umbellatum var. nevadense L. Ahart 1975-7-20 923 Plumas On ridge e of Mt. Etna, ca. 10 mi ne of La Porte. 2133 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
  CHSC32862  Gratiola ebracteata L. Ahart 1980-10-6 2676 Plumas Ca. 1 mi south of La Porte. 1600 Comment
  CHSC32864  Juncus ensifolius L. Ahart 1980-10-6 2673 Plumas On the floor of a hydraulic mine, ca. 1 mi s of La Porte. 1600 Comment
  CHSC37196  Luzula comosa var. laxa L. Ahart 1982-7-30 3736 Plumas In a small meadow near dirt rd, ca. 2 mi n of Ohio Ravine, ca. 3 mi n of Hardquartz Mine, ca. 4 mi s of Bucks Lake. 1700 Comment
  CHSC39364  Phacelia mutabilis L. Ahart; P. Ahart 1983-8-17 4315 Plumas Near Onion Valley, west of Pilot Peak, near the Quincy-LaPorte Rd, northeast of La Porte. 2000 Comment
  CHSC39378  Erythronium purpurascens L. Ahart; P. Ahart 1983-8-17 4336 Plumas Near Onion Valley, west of Pilot Peak, near the Quincy-LaPorte Rd, northeast of La Porte. 2000 Comment
  CHSC40915  Corydalis caseana subsp. caseana Lowell Ahart 1976-7-7 1162 Plumas By the edge of Cold Water Creek, east of the camp on Cold Water Creek, about 4 miles south of Grizzly Mtn. 1524 Comment
  CHSC41380  Descurainia incana Lowell Ahart 1986-7-1 5331 Plumas On a gravel bar along Bunker Hill Creek, at the Bunker Hill Mine, about 11 miles north-east of La Porte. 1889 Comment
  CHSC41412  Boechera suffrutescens Lowell Ahart 1986-7-8 5363 Plumas South of where the road crosses Onion Valley Creek, about 1 mile north-west of Pilot Peak, about 14 miles north-east of La Porte. 1920 Comment
  CHSC41775  Monardella sheltonii Lowell Ahart 1986-7-25 5373 Plumas Along Cleghorn Bar Road, about 1 1/2 miles west of Finger Board, about 4 miles north-west of Pilot Peak. 1828 Comment
  CHSC43320  Alnus incana subsp. tenuifolia Lowell Ahart 1975-7-9 857 Plumas Along the edge of a small stream, about 1 mile west of Pilot Peak. 1981 Comment
  CHSC43397  Plagiobothrys hispidulus Lowell Ahart 1979-7-18 1986 Plumas In a small meadow along the road to Cleghorn Bar, about 2 miles north-west of Pilot Peak, about 12 miles north of La Porte. 1645 Comment
  CHSC43423  Spergularia rubra Lowell Ahart 1974-8-15 611 Plumas Along the dirt road near White Cap, about 10 miles south of Sloat. 1676 Comment
  CHSC43447  Spiraea densiflora Lowell Ahart 1974-8-3 585 Plumas East of Mount Etna, about 5 miles east of the Bunker Hill Mine, about 12 miles north-east of La Porte. 1828 Comment
  CHSC44544  Bromus laevipes Lowell Ahart 1977-7-26 1496 Plumas Along the old logging road to Bunker Hill Creek, about 1/2 mile north of the Bunker Hill Mine, about 10 miles north-east of La Porte. 1828 Comment
  CHSC45412  Aconitum columbianum Lowell Ahart 1976-7-7 1165 Plumas By Cold Water Creek, at the camp, about 4 miles south of Grizzly Mountain. 1524 Comment
  CHSC45507  Delphinium nuttallianum Lowell Ahart 1977-6-20 1432 Plumas About 1/2 mile north-east of Feather Fork Mine, about 6 miles north of La Porte. 1706 Comment
  CHSC46502  Ceanothus cordulatus Lowell Ahart 1974-8-15 607 Plumas Along the road near White Cap, about 10 miles south of Slote. 1676 Comment
  CHSC46645  Allophyllum integrifolium Lowell Ahart 1989-7-2 6356 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
  CHSC46658  Ribes viscosissimum Lowell Ahart 1989-7-2 6355 a Plumas About 10 miles north-east of La Porte, about 1/4 mile north of Pilot Peak, growing on dry bare soil in openings, north of where the dirt road forks, the south fork leads to the Lookout on Pilot Peak. 2103 Comment
  CHSC47569  Juncus nevadensis Lowell Ahart 1979-7-18 1978 Plumas Along the bank of Onion Valley Creek, east of the Quincy La Porte Road before it crosses the creek, about 1 mile west of Pilot Peak, about 12 miles north of La Porte. 1767 Comment
  CHSC51006  Epilobium glaberrimum Lowell Ahart 1990-7-16 6571 Plumas Along the edge of the South Fork of the Feather River, about 1/2 mile north-east of the Independent Mine, about 3 1/2 miles north-east of Little Grass Valley Reservoir. 1828 Comment
  CHSC63153  Allophyllum integrifolium Lowell Ahart 1994-7-7 7455 Plumas Plumas and Sierra County. On the north side of the Pacific Crest Trail, on Bunker Hill Ridge, about 3/4 mile (air) south of Pilot Peak. 2011 Comment
  CHSC63160  Montia fontana subsp. amporitana Lowell Ahart 1994-6-17 7351 Plumas On the edge of a small wet 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
  CHSC63166  Drymocallis lactea var. austiniae Lowell Ahart 1994-6-29 7415 Plumas Along 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
  CHSC63309  Melica fugax Lowell Ahart 1994-6-15 7330 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
  CHSC63488  Elymus sierrae Lowell Ahart 1994-7-20 7484 Plumas Plumas and Sierra counties. North of the Pacific Crest Trail, on the north side of Bunker Hill Ridge, about 1/2 mile north-west of Mount Etna. 1981 Comment
  CHSC65174  Montia chamissoi Lowell Ahart 1995-8-7 7606 Plumas In a small meadow, near a mountain alder thicket, south of the Pacific Crest Trail, south of a poor dirt road, north-east of the weather station, about 1/2 mile (air) west of Pilot Peak. 1981 Comment
  CHSC65383  Potentilla gracilis var. fastigiata Lowell Ahart 1995-9-13 7635 Plumas On the north-west side of Onion Valley, east of Quincy La Porte Road, about 1 mile north-west of Pilot Peak. 1828 Comment
  CHSC65385  Castilleja tenuis Lowell Ahart 1995-9-13 7621 Plumas On the north side of Onion Valley, east of Quincy La Porte Road, about 1 mile north-west of Pilot Peak. 1828 Comment
  CHSC69519  Antirrhinum vexillo-calyculatum subsp. intermedium Lowell Ahart 1997-9-11 7896 Plumas On the west side 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
  CHSC80803  Crepis pleurocarpa Lowell Ahart 2001-7-19 8937 Plumas Steep slope, on the east side of Hopkins Creek, about 100 yards southwest of the East Branch of Hopkins Creek, about 1/2 mile (air) south of Turkey Town, about 2 1/2 miles (air) southeast of Pilot Peak. 1828 Comment
  CHSC80862  Polygonum douglasii subsp. douglasii Lowell Ahart 2001-7-17 8917 Plumas Meadows, on the west side of a poor logging road, east of a small branch of Butt Creek, about 2 1/2 miles (air) north of Humboldt Summit. 1828 Comment
  CHSC81162  Veronica peregrina subsp. xalapensis Lowell Ahart 2001-9-24 9198 Plumas Strand of Lake Almanor, west of the intersection of the dirt road to Last Chance Marsh and the poor dirt road that goes south along Lake Almanor to the causeway of Highway 36, about 3/4 mile northeast of Chester. 1371 Comment
  CHSC81164  Urtica dioica subsp. holosericea Lowell Ahart 2001-9-24 9203 Plumas Near 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, on the west side of the poor dirt road,about 3/4 mile northeast of Chester. 1371 Comment
  CHSC81377  Gentiana newberryi Lowell Ahart 2001-9-18 9271 Plumas Small stream, south of the Darlingtonia Bog and east of the dirt road, Butterfly Valley, about 5 miles (air) northwest of Quincy. 1112 Comment
  CHSC81816  Crataegus castlegarensis Lowell Ahart 2001-10-16 9393 Plumas Old road that crossed Indian Creek, about 10 yards east of the railroad tracks, where railroad has a bumper to start the signal lights on Arlington Road, about 400 yards south of Arlington Road, about 30 yards east of Highway 89, about 1 1/2 miles south of Crescent Mills. 1066 Comment
  CHSC82468  Spiraea densiflora Lowell Ahart; John Dittes, Josephine Guardino 2002-7-2 9826 Plumas In a logged over area on the south side of Forest Road 22N94, east of Forest Road 22N94E, on Hartman Bar Ridge, about 1 mile (air) southwest of Franklin Hill, about 4 1/2 miles (air) northwest of Tamarack Flat, about 9 miles (air) northwest of La Porte. 1606 Comment
  CHSC82493  Nama lobbii Lowell Ahart 2002-6-26 9770 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
  CHSC82495  Sanicula graveolens Lowell Ahart 2002-6-26 9758 Plumas On the southwest side of a gravel road, about 2 miles (air) northwest of Little Grass Valley Reservoir dam, about 5 miles (air) northwest of La Porte. 1741 Comment
  CHSC82541  Botrychium simplex var. compositum Lowell Ahart; John Dittes 2002-6-17 9727 Plumas On the west side of a meadow, about 40 yards south of the road, about 3/4 mile west of Lumpkin Ridge Road, about 1 mile southeast of Tamarack Flat, about 2 miles (air) northwest of Little Grass Valley Reservoir dam, about 5 miles (air) northwest of La Porte. 1715 Comment
  CHSC84361  Cuscuta californica var. breviflora Lowell Ahart 2003-9-7 10563 Plumas On the east side of the dirt road, about 50 yards southeast of the Pacific Crest Trail, on Bunker Hill Ridge, about 1 mile (air) southeast of Pilot Peak, about 9 miles (air) northeast of La Porte. 2038 Comment
  CHSC84979  Campanula scouleri Lowell Ahart 2003-10-15 10638 Plumas Old gold mined flat area, about 1/4 mile south of Forest Road 22N94E, about 1/2 mile south of Forest Road 22N94, on Hartman Bar Ridge, about 1 mile (air) southwest of Franklin Hill, about 4 1/2 miles (air) northwest of Tamarack Flat, about 9 miles (air) northwest of La Porte. 1509 Comment
  CHSC87623  Collinsia rattanii Lowell Ahart; Josephine Guardino 2004-5-24 10947 Plumas About 100 yards north of the railroad, Greenhorn Creek, and Highway 70, about 3/4 mile west of Squirrel Creek, about 7 miles (air) southeast of Quincy. 1186 Comment
  CHSC87625  Collinsia parviflora Lowell Ahart; John Dittes, Josephine Guardino 2004-5-24 10955 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
  CHSC87818  Nemacladus capillaris Lowell Ahart; John Dittes, Josephine Guardino 2004-6-6 11013 Plumas Road edge, on the north side of the logging road, about 3 3/4 miles (air) south of Lower Taylor Rock, about 7 1/2 miles (air) northeast of Quincy. 1357 Comment
  CHSC87821  Melica fugax Lowell Ahart; John Dittes, Josephine Guardino 2004-6-6 11008 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
  CHSC91333  Berberis aquifolium var. aquifolium Lowell Ahart; John Dittes 2005-6-1 11842 Plumas On the west side of the North Fork of the Feather River, at Indian Jim Campground, on the east side of Highway 70, about 3/4 mile southwest of Chambers Creek. 646 Comment
  CHSC92117  Glyceria borealis Lowell Ahart; John Dittes 2005-9-19 12386 Plumas Below the high water line of Taylor Lake, on the east side of Taylor Lake, about 6 miles (air) southwest of Antelope Lake. 2080 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
  CHSC92164  Gnaphalium palustre Lowell Ahart; John Dittes 2005-9-19 12390 Plumas Below the high water line of Taylor Lake, on the northeast side of Taylor Lake, about 6 miles (air) southwest of Antelope Lake. 2076 Comment
  CHSC92178  Polygonum aviculare Lowell Ahart; John Dittes 2005-9-19 12410 Plumas Along the east side of a good dirt road, about 1 1/4 miles southeast of Kettle Rock, about 1 1/4 miles southeast of Taylor Lake. 1986 Comment
  CHSC92201  Juncus dubius Lowell Ahart; John Dittes 2005-9-19 12400 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
  CHSC94174  Carex lenticularis var. impressa Lowell Ahart 2006-7-9 12922 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. 1678 Comment
  CHSC94659  Eleocharis bella Lowell Ahart 2006-10-8 13419 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
  CHSC94837  Myosotis laxa Lowell Ahart 2006-10-8 13408 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
  CHSC94978  Lindernia dubia var. dubia Lowell Ahart 2006-10-8 13393 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
  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
  CHSC96933  Poa cusickii subsp. cusickii Lowell Ahart; John Dittes, Josephine Guardino 2007-6-9 14052 Plumas About 100 yards east of a poor dirt road, about a mile (air) north of the north end of Lake Davis. 1857 Comment
  CHSC97064  Antennaria argentea Lowell Ahart; Josephine Guardino 2007-7-21 14377 Plumas Around pine trees, along a small dry drainage, about 5 yards south of the Beckwourth Taylorsville Road, about 2 1/4 miles (air) northwest of the most northwest part of Lake Davis. 1813 Comment
  CHSC97078  Carex subfusca Lowell Ahart; Josephine Guardino 2007-7-21 14356 Plumas Near a spring, open dry flat, south of the dirt road, about 1/2 mile (air) south of Bagley Pass, about 400 yards north of Lake Davis. 1787 Comment
  CHSC97188  Phacelia racemosa Lowell Ahart; John Dittes, Josephine Guardino 2007-6-9 14045 Plumas 150 yards east of a poor dirt road, about a mile (air) north of the north end of Lake Davis. 1965 Comment
  CHSC97222  Elymus glaucus subsp. glaucus Lowell Ahart; Josephine Guardino 2007-7-20 14321 Plumas South of a small drainage, northeast of a large meadow, east of Lightning Tree Campground, east of the paved road, east side of Lake Davis. 1789 Comment
  CHSC97224  Carex angustata Lowell Ahart; Josephine Guardino 2007-7-21 14387 Plumas About 40 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
  CHSC97304  Torreyochloa pallida var. pauciflora Lowell Ahart; John Dittes, Josephine Guardino 2007-8-10 14472 Plumas About 100 yards south of Beckwourth Gensee Road, there is a small quarry east of a poor road, the meadow and stream, about 2 miles (air) north of the north end of Lake Davis. 1761 Comment
  CHSC97554  Epilobium ciliatum subsp. glandulosum Lowell Ahart; John Dittes 2007-6-17 14180 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
  CHSC97608  Barbarea orthoceras Lowell Ahart; John Dittes 2007-6-16 14129 Plumas On damp soil, meadow, 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
  CHSC99795  Solidago elongata Lowell Ahart 2008-8-13 15191 Plumas On the bottom of Kenzie Ravine, on the east side of the road, about 1/2 mile east of Little Glass Valley Reservoir, about 4 miles (air) northeast of La Porte. 1598 Comment
  CHSC99818  Veronica serpyllifolia subsp. humifusa Lowell Ahart 2008-7-16 15097 Plumas Forest floor, northwest edge of a small meadow, 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
  CHSC99821  Osmorhiza chilensis Lowell Ahart 2008-7-16 15072 Plumas Forest floor, 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
  HSC100731  Castilleja tenuis Lowell Ahart, John Dittes, Josephine Guardino 2009-7-22 16135 Plumas W 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
  HSC102795  Erigeron inornatus var. inornatus L. Ahart 2008-8-13 15165 Plumas About 1.75 air miles S of Little Grass Valley Reservoir, ~1.0 mi. NE of La Porte, west of East Branch Creek, on the western side of La Porte Rd. 1614 Comment
  HSC92446  Glyceria elata L. Ahart 1980-10-6 2670 Plumas S shore of small lake, 1/2 mi. W of Fowler Peak, 2 mi. N of Little Grass Valley Reservoir 1616 Comment
  JEPS102382  Cryptantha torreyana Lowell Ahart 2001-7-17 8911 Plumas about 2 1/2 air mi N of Humboldt Summit (E of a small branch of Butt Creek, W side of a poor logging road) 1828 Comment
  JEPS102477  Conyza canadensis Lowell Ahart 2001-10-8 9319 Plumas On the north side of Indian Creek, below or near the highwater line of Antelope Lake, about 24 miles (air) NE of Quincy. 1524 Comment
  JEPS102524  Galium trifidum var. pacificum Lowell Ahart 2001-8-28 9204 Plumas Strand of Lake Almanor, west of the intersection of the dirt road to Last Chance Marsh and the poor dirt road that goes south along Lake Almanor to the causeway of Highway 36, about 3/4 mile northeast of Chester. 1371 Comment
  JEPS102614  Castilleja applegatei subsp. pinetorum Lowell Ahart 2001-7-17 8923 Plumas Outcrops, on the SE side of a logging road, SE of a small branch of Butt Creek, about 2 1/2 miles (air) north of Humboldt Summit. 1828 Comment
  JEPS102673  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
  JEPS102710  Juncus ensifolius Lowell Ahart 2001-8-28 9193 Plumas Strand of Lake Almanor, west of the intersection of the dirt road to Last Chance Marsh and the poor dirt road that goes south along Lake Almanor to the causeway of Highway 36, about 3/4 mile NE of Chester. 1371 Comment
  JEPS102749  Scirpus microcarpus Lowell Ahart 2001-7-23 9001 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
  JEPS103271  Vaccinium membranaceum Lowell Ahart 2002-7-6 9843 Plumas On the south side of the dirt road and south of the large meadow, on Rock Island Ridge, about 3/4 mile SE of Soapstone Hill and the Oroville Quincy Highway, about 1 1/2 miles (air) NE of Four Trees. 1611 Comment
  JEPS103323  Ledum glandulosum Lowell Ahart 2002-7-6 9841 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
  JEPS103351  Nama lobbii Lowell Ahart 2002-6-26 9770 Plumas On the E side of the poor road, ca 1 mile S of the intersection of Lumpkin Ridge Road and the road to Tamarack Flat, ca 1 mile (air) NW of Little Grass Valley Reservoir dam, ca 4 miles (air) NW of La Porte. 1760 Comment
  JEPS103368  Ericameria nauseosa var. speciosa Lowell Ahart 2002-10-19 10003 Plumas Forest on the S side of the dirt road, ca 1/4 mile E of Humboldt Road, ca 1 3/4 miles (air) NE of Humboldt Summit. 1750 Comment
  JEPS103592  Silene occidentalis subsp. occidentalis Lowell Ahart 2002-6-26 9779 Plumas On the E side of the poor road, ca 1/2 mile S of the intersection of Lumpkin Ridge Road and the road to Tamarack Flat, ca 1 mile (air) NW of Little Grass Valley Reservoir dam, ca 4 miles (air) NW of La Porte. 1796 Comment
  JEPS104160  Polystichum scopulinum Lowell Ahart 2003-10-17 10654 Plumas Cliffs n of Humboldt Peak, on the south side of the Pacific Crest Trail, ca 1/2 mi e of Humboldt Summit, ca 8 mi (air) ne of Butte Meadows. 2042 Comment
  JEPS105839  Potentilla breweri Lowell Ahart, John Dittes, Josephine Guardino, Robert Schlising 2004-7-3 11167 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
  JEPS106038  Arnica mollis Lowell Ahart, John Dittes, Josephine Guardino, Robert Schlising 2004-7-3 11166 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
  JEPS106061  Polygonum polygaloides subsp. kelloggii Lowell Ahart, John Dittes, Josephine Guardino, Robert Schlising 2004-6-14 11054 Plumas On the north side of a small meadow, about 50 yards north of the dirt road, road goes to Lake Davis, about 1/2 mile west of Lake Davis, about 11 1/2 miles (air) northeast of Slote 1777 Comment
  JEPS106146  Plagiobothrys hispidulus Lowell Ahart, John Dittes, Josephine Guardino, Robert Schlising 2004-6-14 11056 Plumas On the north side of a small meadow, about 50 yards north of the dirt road, road goes to Lake Davis, about 1/2 mile west of Lake Davis, about 11 1/2 miles (air) northeast of Slote 1777 Comment
  JEPS107602  Solidago elongata Lowell Ahart, Josephine Guardino 2005-8-10 12315 Plumas Near a small wet 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
  JEPS107606  Cuscuta californica var. californica Lowell Ahart, Josephine Guardino 2005-8-10 12303 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
  JEPS107614  Carex subfusca Lowell Ahart, Josephine Guardino 2005-8-10 12304 Plumas Along a poor logging road, northeast of a small branch of Lights Creek, east side of Forest Road 27N54, about 5 1/2 miles (air) northwest of the Boulder Creek Work Center at Antelope Lake 1821 Comment
  JEPS107729  Symphyotrichum spathulatum var. spathulatum Lowell Ahart, John Dittes 2005-9-19 12413 Plumas Along the west side of a good dirt road, about 1 1/2 miles east of Kettle Rock, about 1 1/2 miles southeast of Taylor Lake 2007 Comment
  JEPS108996  Chenopodium botrys Lowell Ahart 2006-10-8 13412 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
  JEPS110332  Lythrum portula Lowell 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 715 Comment
  JEPS110336  Vulpia myuros var. hirsuta Lowell Ahart 2006-10-8 13394 Plumas On the west side of Chips Creek, just south of the bridge on Highway 70, about 1 1/4 miles southwest of Belden 715 Comment
  JEPS110424  Festuca occidentalis Lowell Ahart 2006-7-9 12919 Plumas 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
  JEPS110432  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
  JEPS110456  Ambrosia acanthicarpa Lowell Ahart 2006-9-21 13341 Plumas On the sides of the paved Rocky Point Road, about 1/2 mile east of Portola 1487 Comment
  JEPS110530  Chenopodium botrys Lowell Ahart 2006-10-23 13472 Plumas On the east side of Slate Creek (there is a large gravel flat caused by the dam), where the road ends, about 50 yards north of the dam across Slate Creek, about 1/8 mile northeast of Scales Road, about 5 1/2 miles (air) northeast of Strawberry Valley 1281 Comment
  JEPS110550  Polystichum imbricans subsp. imbricans Lowell Ahart 2006-10-23 13470 Plumas By large rocks on the west mountain side of Slate Creek (there is a large gravel flat caused by the dam), about 50 yards north of where the road ends, about 100 yards north of the dam across Slate Creek, about 1/8 mile northeast of Scales Road, about 5 1 1281 Comment
  JEPS113422  Limosella acaulis Lowell Ahart, John Dittes 2007-6-17 14178 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
  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
  JEPS113434  Penstemon gracilentus Lowell Ahart, John Dittes 2007-8-9 14448 Plumas About 100 yards east of the poor dirt road, about 1/2 mile south of Mount Ingalls, about 5 1/2 miles (air) northwest of the north end of Lake Davis 2493 Comment
  JEPS113446  Salix lasiandra var. lasiandra Lowell Ahart, John Dittes, Josephine Guardino 2007-6-8 14035 Plumas Strand of Lake Davis, southeast of the end of the road, north end of Lake Davis 1763 Comment
  JEPS113519  Antennaria luzuloides Lowell Ahart, John Dittes 2007-6-16 14138 Plumas On dry bare soil, 100 yards east of the small stream, on the south side of of County Road 111 (Beckwourth Gensee Road), 120 yards east of Forest Road 24N08, Red Clover Valley, about 2 miles (air) north of the north end of Lake Davis 1647 Comment
  JEPS113520  Agoseris heterophylla Lowell Ahart, John Dittes 2007-6-16 14099 Plumas On dry soil, 100 yards east of 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
  JEPS113540  Antennaria argentea Lowell Ahart, Josephine Guardino 2007-7-21 14377 Plumas Around pine trees, along a small dry drainage, about 5 yards south of the Beckwourth Taylorsville Road, about 2 1/4 miles (air) northwest of the most northwest part of Lake Davis 1813 Comment
  JEPS113584  Lupinus argenteus var. meionanthus Lowell Ahart, Josephine Guardino 2007-7-20 14353 Plumas Dry ridge, on the southwest side of Lake Davis Road, Charles Valley, about 1 1/4 miles northwest of Portola 1518 Comment
  JEPS113593  Symphyotrichum spathulatum Lowell Ahart, Josephine Guardino 2007-7-20 14332 Plumas Strand of Lake Davis, about 100 yards west of Long Point, northeast side of Lake Davis 1763 Comment
  JEPS113610  Trifolium cyathiferum Lowell Ahart, John Dittes 2007-6-16 14098 Plumas On damp gravelly soil, gravel bar 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
  JEPS113706  Circaea alpina subsp. pacifica Lowell Ahart, John Dittes, Josephine Guardino 2007-8-10 14473 Plumas About 100 yards south of Beckwourth Gensee Road, there is a small quarry east of a poor road, the meadow and stream, about 2 miles (air) north of the north end of Lake Davis 1761 Comment
  JEPS113795  Poa cusickii var. cusickii Lowell Ahart, John Dittes, Josephine Guardino 2007-6-8 14014 Plumas West side of an open rocky flat, 20 yards west of a poor dirt road, about a mile (air) north of the north end of Lake Davis 1965 Comment
  JEPS113817  Trisetum spicatum Lowell Ahart, John Dittes 2007-8-9 14443 Plumas About 80 yards north of the road, on the north slope of Mount Ingalls, about 6 miles (air) northwest of the north end of Lake Davis 2551 Comment
  JEPS114416  Senecio triangularis Lowell Ahart 2008-7-16 15096 Plumas In a small meadow (swamp), north of a small deep stream, about 130 yards north of the paved road, about 1/4 mile west of the bridge where the South Fork of the Feather River flows into Little Grass Valley Reservoir, about 2 1/2 miles (air) north of La Por 1597 Comment
  JEPS114510  Amelanchier alnifolia var. semiintegrifolia Lowell Ahart 2008-6-5 14813 Plumas Steep north side of a logging road, north of the South Fork of the Feather River, about 1/2 mile southwest of the Feather Fork Mine, about 1 mile northeast of Little Grass Valley Reservoir 1645 Comment
  JEPS114827  Deschampsia elongata Lowell Ahart 2008-9-10 15369 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
  JEPS114942  Agrostis scabra Lowell Ahart 2008-9-10 15368 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
  JEPS114946  Athyrium filix-femina var. cyclosorum Lowell Ahart 2008-8-14 15208 Plumas In a small wet meadow, about 150 yards northeast of the good logging road (Forest Road 22N68), west of the South Fork of the Feather River, about 1/2 mile southwest of the Feather Fork Mine, about 1 mile northeast of Little Grass Valley Reservoir 1600 Comment
  JEPS115084  Penstemon laetus var. laetus Lowell Ahart, John Dittes 2009-7-13 16054 Plumas West side of Forest Service Road 27lN98, headwater of Clear Creek, about 2.0 miles (air) north of Butt Valley Reservoir Dam, about 3 miles (air) southwest of Lake Almanor Reservoir Dam 1476 Comment
  JEPS115093  Chimaphila umbellata Lowell Ahart, John Dittes 2009-7-14 16066 Plumas On dry soil, on the both sides of Forest Service Road 27N92, about 1.9 miles (air) southeast of Seneca, about 6 miles (air) south of Lake Almanor Reservoir Dam 1677 Comment
  JEPS115127  Lupinus lepidus var. confertus Lowell Ahart, John Dittes, Josephine Guardino 2009-7-29 16232 Plumas On dry bare soil, forest floor, above the high water line of Lake Almanor, 1,849 feet northwest of Lake Almanor Dam 1591 Comment
  JEPS115218  Perideridia lemmonii Lowell Ahart, John Dittes, Josephine Guardino 2009-7-22 16158 Plumas On both sides 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
  JEPS115221  Erigeron lassenianus var. lassenianus Lowell Ahart, John Dittes, Josephine Guardino 2009-7-22 16129 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
  JEPS115559  Actaea rubra Lowell Ahart, John Dittes 2009-7-27 16178 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
  JEPS115924  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
  JEPS115932  Melica aristata Lowell Ahart, John Dittes 2009-7-14 16064 Plumas On dry soil, on the north side of Forest Service Road 27N92, about 1.9 miles (air) southeast of Seneca, about 6 miles (air) south of Lake Almanor Reservoir Dam 1677 Comment
  JEPS115936  Carex bolanderi Lowell Ahart, John Dittes 2009-7-13 16031 Plumas On damp to wet soil, seep, on the north side of Forest Service Road 27N98, headwater of Clear Creek, about 2.0 miles (air) north of Butt Valley Reservoir Dam, about 3 miles (air) southwest of Lake Almanor Reservoir Dam 1476 Comment
  JEPS115944  Festuca idahoensis Lowell Ahart, John Dittes 2009-7-13 16036 Plumas On dry to damp soil, on the west 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
  JEPS115980  Juncus tenuis Lowell Ahart, John Dittes 2009-9-7 16390 -D Plumas On damp bare soil, below the high water line of Lake Almanor, about 2000 feet northwest of Lake Almanor Dam 1591 Comment
  JEPS116016  Perideridia lemmonii Lowell Ahart, John Dittes 2009-8-28 16351 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
  JEPS116123  Equisetum laevigatum Lowell Ahart, John Dittes 2009-7-27 16182 Plumas On dry soil, about 20 yards north of the poor dirt road, on the north side of a small pond, headwaters of Grizzly Gulch, 2.1 miles (air) northeast of Butt Valley Reservoir Dam 1479 Comment
  JEPS118410  Bromus ciliatus Lowell Ahart 2011-9-17 17658 Plumas On the south side of an unnamed stream that flows east into Little Grass Valley Reservoir and opposite the Black Rock, about 30 yards west of the paved road, about 1/8 mile west of Little Grass Valley Reservoir 1595 Comment
  JEPS118429  Silene invisa Lowell Ahart 2011-9-20 17683 Plumas Open area along a very small stream, on the north side of the poor dirt road on the north side of Pilot Peak, about 9 miles (air) northeast of La Porte 2072 Comment
  JEPS119731  Cypripedium californicum Lowell Ahart 2012-7-1 18254 Plumas About 250 yards northwest of Caribou Road, about 4 miles (air) northeast of Belden. Comment
  JEPS119933  Erigeron petrophilus var. sierrensis Lowell Ahart 2012-9-5 18442 -A Plumas About 400 yards northeast of the County Road where it crosses the South Fork of the Feather River, about 3/4 mile (air) southwest of Pilot Peak, about 8 1/2 miles (air) northeast of La Porte. Comment
  JEPS120772  Elatine Lowell Ahart 2013-9-11 19023 -W Plumas Strand of Antelope Lake, where Boulder Creek enters the lake, about 15 air miles NE of Taylorsville. Comment
  JEPS122089  Galium triflorum Lowell Ahart 2014-8-26 19790 Plumas In the middle 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
  JEPS122095  Potentilla rivalis Lowell Ahart 2014-8-24 19750 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
  JEPS122320  Torreyochloa pallida var. pauciflora Lowell Ahart 2014-8-31 19806 Plumas 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, Little Grass Valley Reservoir, about 4 1/2 miles (air) northwest of La Porte. Comment
  JEPS123963  Piperia unalascensis Lowell Ahart 2015-7-4 20290 Plumas About 1/2 mile north of the intersection of Lumpkin Ridge Road and road to Little Grass Valley Reservoir, about 1 1/2 miles (air) north of Little Grass Valley Reservoir Dam. Comment
  JEPS124092  Sanicula tuberosa Lowell Ahart 2015-6-7 20209 Plumas Lava Top, about 2 1/4 miles (air) north of the bridge across Fall River, about one mile southeast of Cascade, about 7 miles (air) northeast of Feather Falls, about 10 miles (air) west of La Porte. Comment
  JEPS124096  Gayophytum humile Lowell Ahart 2015-6-7 20222 Plumas Lava Top, about 2 1/4 miles (air) north of the bridge across Fall River, about one mile southeast of Cascade, about 7 miles (air) northeast of Feather Falls, about 10 miles (air) west of La Porte. Comment
  JEPS124411  Carex laeviculmis Lowell Ahart 2015-7-4 20276 Plumas About 1/2 mile west of the 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
  JEPS127340  Eriogonum nudum var. deductum Lowell Ahart 2016-7-9 21093 Plumas Top and on the north side Table Mountain, about 2 miles (air) northwest of of Tamarack Flat, about 4 miles (air) northwest of Little Grass Valley Reservoir Dam. Comment
  JEPS87591  Festuca viridula Lowell Ahart 1994-7-7 7469 Plumas ca. 1/4 mi. (air) s.w. Pilot Peak (w. side of Pacific Crest Trail); Pacific Crest Trail 2011 Comment
  JEPS87860  Chimaphila umbellata Lowell Ahart 1994-7-28 7539 Plumas sw Bucks Lake (ne of Frenchman Hill); sw of Bucks Lake, ne of Frenchman Hill 1706 Comment
  JEPS95290  Epilobium ciliatum subsp. glandulosum Lowell Ahart 1994-7-28 7535 Plumas SW of Bucks Lake (NE of Frenchman Hill) 1706 Comment
  JEPS95296  Montia fontana Lowell Ahart 1994-6-17 7351 Plumas E side of Sly Creek, 1 mi N of Schwartz Meadow, 1 mi E of Sly Creek Reservoir 1097 Comment
  JEPS95382  Carex athrostachya Lowell Ahart 1994-7-22 7500 Plumas along the N side of the Pacific Crest Trail, about 1/2 mi E of Mount Etna 1981 Comment
  JEPS95557  Cryptantha simulans Lowell Ahart 1994-7-7 7460 Plumas N side of Pacific Crest Trail, Bunker Hill Ridge, about 3/4 air miles SE of Pilot Peak 2011 Comment
  JEPS95586  Angelica breweri Lowell Ahart 1994-7-28 7530 Plumas SW of Bucks Lake (NE of Frenchman Hill) 1706 Comment
  JEPS95626  Juncus nevadensis Lowell Ahart 1994-7-28 7533 Plumas SW of Bucks Lake (NE of Frenchman Hill) 1706 Comment
  RSA0035828  Allophyllum integrifolium Lowell A. Ahart 2008-8-14 15200 Plumas 20 yards northeast of the metal gate, east side of 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
  RSA0058868  Perideridia parishii subsp. latifolia Lowell A. Ahart 2008-7-9 15054 Plumas Near a small meadow, about 2 yards west of the paved road, about 1/4 mile east of the main road and will take you east to the paved County Road, about 6 miles (air) northeast of La Porte. 1686 Comment
  RSA0083210  Orthilia secunda L. Ahart 2008-9-10 15364 Plumas Both sides of East Branch Creek, east side of Quincy La Porte Road, about 1.75 air miles south of Little Grass Valley Reservoir, about 1 mile northeast of La Porte 1594 Comment
  RSA0105468  Epilobium brachycarpum Lowell Ahart 2014-8-26 19784 Plumas On the north side of the South Fork of the Feather River, Little Grass Valley Reservoir, about 200 yards southwest of the parking lot to the Pacific Crest Trail, about 1/4 mile southwest of the bridge across the South Fork of the Feather River, about 4, miles (air) north of La Porte. 1533 Comment
  RSA443111  Calocedrus decurrens L. Ahart, J. Jokerst 1985-10-4 5189 Plumas About 1 mile west of Pilot Peak, about 9 miles north-east of La Porte. 1829 Comment
  RSA699252  Silene lemmonii L. Ahart, John Dittes, Josephine Guardino 2004-6-6 10997 Plumas 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. 1518 Comment
  RSA699706  Carex aurea L. Ahart, John Dittes, Josephine Guardino, Robert Schlising 2004-7-3 11157 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
  RSA715688  Juncus occidentalis L. Ahart, Josephine Guardino 2005-8-10 12309 Plumas 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
  RSA716269  Penstemon gracilentus L. Ahart, John Dittes 2005-9-20 12449 Plumas On the S side of Forest Road 27N34, about 1 mile NE of Eisenheimer Peak, about 3/4 mile south of Wilcox Valley. 2050 Comment
  RSA716694  Juncus nevadensis L. Ahart, John Dittes 2005-9-20 12428 Plumas On the west shore of Mud Lake, about 1/2 mile northeast of Eisenheimer Peak, about 3/4 mile south of Wilcox Valley. 2030 Comment
  RSA718392  Streptanthus tortuosus L. Ahart 2006-7-3 12904 Plumas About 0.25 mile N of Lumpkin Ridge road, on Lumpkin Ridge, 4 miles (air) NE of Camp 18 1528 Comment
  RSA718442  Trifolium cyathiferum L. Ahart 2006-7-9 12934 Plumas about 20 yards south of the paved basalt road, about 3 3/4 miles (air) nw of Tamarack Flat, about 5 3/4 miles (air) nw of Little Grass Valley Reservoir 1662 Comment
  RSA726287  Salix lemmonii L. Ahart, John Dittes 2007-6-16 14128 Plumas S side of County Road 111 (Beckwourth Gensee Road). 50 yards E of Forest Rd 24N08. Red Clover Valley. About 2 miles (air) N of the N end of Lake Davis. 1648 Comment
  RSA726369  Crepis intermedia L. Ahart, John Dittes, Josephine Guardino 2007-6-8 13988 Plumas 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. 1966 Comment
  RSA754533  Polystichum imbricans subsp. imbricans L. Ahart, John Dittes 2009-7-27 16164 Plumas Headwaters of Grizzly Gulch, 2.1 air miles NE of Butt Valley Reservoir Dam. 1480 Comment
  RSA754535  Torreyochloa pallida var. pauciflora L. Ahart, John Dittes 2009-7-27 16190 Plumas Headwaters of Grizzly Gulch, 2.1 air miles NE of Butt Valley Reservoir Dam. 1480 Comment
  RSA754926  Carex angustata L. Ahart, Josephine Guardino 2005-8-10 12316 Plumas 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 1822 Comment
  RSA755439  Cryptantha affinis L. Ahart, John Dittes, Josephine Guardino 2009-6-14 15858 Plumas Cut bank of Forest Road 27N01Y, about 1.3 air miles W of Lake Almanor Dam. 1463 Comment
  RSA768930  Erigeron inornatus var. inornatus L. Ahart, John Dittes 2010-10-21 17307 Plumas About 5 yards west of the spring, on the south side of the road to Cleghorn Bar, about 2 miles by road west of the Quincy-La Porte Road, about 2.5 air miles northeast of Pilot Peak. 1929 Comment
  RSA794834  Erodium cicutarium L. Ahart, Josephine Guardino, John Dittes 2009-6-14 15883 Plumas Below the high water line, about 300 yards SW of the Boat Ramp, about 300 yards N of Lake Almanor Dam. 1375 Comment
  SEINET13710922  Carex athrostachya Lowell William Ahart, Lowell William Ahart 2001-1 9197 Plumas 3/4 Mi. NE of Chester along Lake Almanor (T28N, R7E, sec 4, NE 1/4) 4500 Ft. 1372 Comment
  CAS-BOT-BC420051  Polygonum polygaloides subsp. kelloggii Lowell Ahart 1980-8-12 2576 Plumas About 2 miles south of La Porte. 1600 Comment
  CAS-BOT-BC466608  Allium campanulatum Lowell Ahart 1979-7-18 s.n. Plumas Ca. 1 mi W of Pilot Pk. near Onion Valley 1800 Comment
  CAS-BOT-BC500309  Orobanche uniflora subsp. occidentalis Lowell Ahart 1975-7-16 s.n. Plumas 2 mi NE of LIttle Grass Valley Res. 1828 Comment
  CAS-BOT-BC60558  Noccaea fendleri subsp. glauca Lowell Ahart 1979-7-18 s.n. Plumas Ca. 1 mile southwest of Pilot Peak. 1800 Comment
  JEPS97324  Cuscuta subinclusa Lowell Ahart 1995-9-13 7638 Plumas NW side of Onion Valley, east of Quincy--LaPorte Rd., ca 1 mi NW of Pilot Peak 1828 Comment
  SEINET10472443  Juncus hemiendytus Lowell Ahart 1985-7-11 Ahart 5135 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
  SEINET10497119  Plagiobothrys scouleri Lowell Ahart 1985-7-3 Ahart 5102 Plumas About 4 1/4 miles north-east of La Porte. Comment
  SEINET10508570  Deschampsia elongata Lowell Ahart 1985-7-3 Ahart 5100 Plumas About 4 1/4 miles north-east of La Porte. Comment
  SEINET10839140  Eriophyllum lanatum var. integrifolium Lowell Ahart, Peter Ahart 1983-8-17 Ahart 4327 Plumas Near Onion Valley, west of Pilot Peak, near the Quincy-LaPorte Rd, northeast of La Porte. Red Fir Forest; 2000 m. 2000 Comment
  SEINET13710065  Juncus ensifolius Lowell William Ahart, Lowell William Ahart 2001-1 9193 Plumas Lake Almanor, about 3/4 Mi. NE of Chester (T28N, R7E, sec 4, NE 1/4) 4500 Ft. 1372 Comment
  CHSC11608  Funastrum hirtellum Lowell Ahart 1962-4-16 San Bernardino Near Twentynine Palms. 914 Comment
  CHSC83953  Rumex hymenosepalus Emma M. Ahart 2003-3-25 San Bernardino Along Kelso Amboy Road, about 1 1/2 miles south of Kelso. 1219 Comment
  CHSC83960  Eriophyllum lanosum 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
  CHSC115558  Lythrum salicaria Lowell Ahart; John Dittes 2015-7-15 20358 Shasta South side of Fall River, on the north side of County Road A19, 3.8 miles west of McArthur, Fall River Valley. 1006 Comment
  CHSC118557  Lupinus polycarpus Lowell Ahart; John Dittes, Josephine Guardino 2017-6-15 21405 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
  CHSC118570  Psilocarphus oregonus Lowell Ahart; John Dittes, Josephine Guardino 2017-6-15 21400 Shasta Bottom of the seasonal swale passing northward into northeast end of Fall River Lake, 740 feet northwest from end of Mackey's Cove Road, about 0.6 mile norhwest of airport runway, about 1.2 miles (air) north of Fall River Mills, Fall River Valley. 1008 Comment
  CHSC84038  Plagiobothrys canescens Lowell Ahart; John Dittes 2003-5-22 10195 Shasta Meadow south of the wash, west of the poor dirt road, about 150 yards south of the Coleman Canal, about 1 1/8 miles west of the barn, 4 miles (air) west-southwest of Darah Springs State Fish Hatchery, about 11 miles (air) east-northeast of Cottonwood. 259 Comment
  CHSC84053  Melica californica Lowell Ahart; John Dittes 2003-5-22 10192 Shasta West of the poor dirt road, about 150 yards south of the Coleman Canal, about 1 1/8 miles west of the barn, 4 miles (air) west-southwest of Darah Springs State Fish Hatchery, about 11 miles (air) east-northeast of Cottonwood. 259 Comment
  CHSC84060  Eleocharis quinqueflora Lowell Ahart; John Dittes 2003-5-22 10198 Shasta Meadow, west of the poor dirt road, about 150 yards south of the Coleman Canal, about 1 1/8 miles west of the barn, 4 miles (air) west-southwest of Darah Springs State Fish Hatchery, about 11 miles (air) east-northeast of Cottonwood. 259 Comment
  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
  CHSC99240  Crepis occidentalis subsp. occidentalis Lowell Ahart; John Dittes 2008-6-19 14851 Shasta About 150 yards east of the Pit River, about 10 yards west Cassel-Fall River Road, about 50 yards south of the intersection of Cassel-Fall River Road and Dee-Knoch Road, about 1/4 mile southeast of Highway 299 in Fall River Mills. 993 Comment
  JEPS104079  Scleranthus annuus subsp. annuus Lowell Ahart 2003-5-12 10144 Shasta Near a marshy vernal pool, ca 250 yd south of the barn, ca 1/4 mi south of the Coleman Canal, 2.8 mi (air) wsw of Darah Springs State Fish Hatchery, ca 12 mi (air) ene of Cottonwood. 265 Comment
  JEPS104100  Eleocharis quinqueflora Lowell Ahart 2003-5-22 10198 Shasta Meadow, w of the poor dirt road, ca 150 yd south of the Coleman Canal, ca 1 1/8 mi w of the barn, 4 mi (air) wsw of Darah Springs State Fish Hatchery, ca 11 mi (air) ene of Cottonwood. 259 Comment
  JEPS104313  Ranunculus arvensis Lowell Ahart 2003-5-22 10212 Shasta In a ditch on the n side of the poor dirt road, ca 250 yd ne of the barn, ca 1/8 mi south of the Coleman Canal, 2.8 mi (air) wsw of Darah Springs State Fish Hatchery, ca 12 mi (air) ene of Cottonwood. 259 Comment
  JEPS104361  Collinsia tinctoria Lowell Ahart 2003-5-22 10205 Shasta North rim of Battle Creek, at the end of a poor dirt road, ca 350 yd south of the Coleman Canal, ca 1 1/8 mi w of the barn, 4 mi (air) wsw of Darah Springs State Fish Hatchery, ca 11 mi (air) ene of Cottonwood. 259 Comment
  JEPS104461  Trifolium striatum Lowell Ahart 2003-5-22 10181 Shasta Just w of the gate, on the road, on the south side of the Coleman Canal, 2.8 mi (air) wsw of Darah Springs State Fish Hatchery, ca 12 mi (air) ene of Cottonwood. 271 Comment
  JEPS120913  Potentilla rivalis Lowell Ahart, John Dittes 2013-6-9 18794 Shasta Hollenbeck Field, 950 feet E of Rat Farm Boat Launch, 3.4 air miles N of McArthur, Fall River Valley, McArthur Swamp. Comment
  JEPS124387 Image available Lythrum salicaria Lowell Ahart, John Dittes 2015-7-15 20358 Shasta On the north side of County Road A19, 3.8 miles west of McArhur, Fall River Valley. Comment
  JEPS128717  Epilobium torreyi Lowell Ahart, John Dittes, Josephine Guardino 2017-6-15 21408 Shasta Northward into northeast end of Fall River Lake, 740 feet northwest from end of Mackey's Cove Road, about 0.6 mile northwest of airport runway, about 1.2 miles (air) north of Fall River Mills, Fall River Valley. Comment
  JEPS128765  Castilleja chromosa Lowell Ahart, John Dittes, Josephine Guardino 2017-6-15 21411 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. Comment
  RSA698701  Bromus sterilis L. Ahart 2003-5-22 10189 Shasta About 150 yards south of the Coleman Canal, about 1 1/8 miles west of the barn, 4 miles (air) west-southwest of Darah Springs State Fish Hatchery, about 11 miles (air) east-northeast of Cottonwood., South of a small wash, west of the poor dirt road. 259 Comment
  SEINET3441878  Sedella pumila Lowell Ahart, John Dittes 2003-5-12 10145 Shasta Cottonwood, Cottonwood, about 12 air miles east /northeast, 2.8 air miles west/southwestof Darah Springs State Hatchery, about 0.25 miles south of the Coleman Canal, about 250 yards south of the barn 260 Comment
  CAS-BOT-BC138946  Agrostis pallens Lowell Ahart 1977-8-2 s.n. Sierra Found on north side of Mount Fillmore. Stream that drains the north side of Mount Fillmore. 2000 Comment
  CAS-BOT-BC170323  Polygala cornuta var. cornuta Lowell Ahart 1982-7-28 3686 Sierra 1/4 mile north of the Pacific Mine, about 5 miles east of La Porte 1700 Comment
  CAS-BOT-BC218721  Achnatherum diegoense Lowell Ahart 1977-7-31 1533 Sierra About 2 miles north of Scales 1400 Comment
  CAS-BOT-BC254776  Poa bolanderi Lowell Ahart 1977-8-2 s.n. Sierra On the N side of Mount Fillmore, about 12 miles NE of La Porte 2000 Comment
  CAS-BOT-BC262287  Eriogonum ursinum Lowell Ahart 1982-7-28 3685 Sierra About 1/4 mile north of the Pacific Mine, about 5 miles east of La Porte 1700 Comment
  CAS-BOT-BC267036  Muhlenbergia filiformis Lowell Ahart 1983-10-27 4473 Sierra About 2 miles SE of Jackson Meadows Res., ca 1 mile S of Pass Creek 2200 Comment
  CAS-BOT-BC364417  Senecio triangularis Lowell Ahart 1978-9-26 s.n. Sierra On the north side of Mt. Fillmore 2200 Comment
  CAS-BOT-BC63648  Ceanothus integerrimus Lowell Ahart 1979-7-15 s.n. Sierra Southeast-facing of Stafford Mtn. A small part of a shrub growing on a small hill below road s. of Stafford Mtn. 1800 Comment
  CAS-BOT-BC76174  Darlingtonia californica Lowell Ahart 1978-8-13 s.n. Sierra Sierra Nevada. Harris Meadow, northeast of Alleghany. 548 Comment
  CAS-BOT-BC97414  Artemisia tridentata subsp. tridentata Lowell Ahart 1983-10-27 4472 Sierra near the dirt road on the north side of Milton Res., near Jackson Meadow Res. 1800 Comment
  CHSC105642  Artemisia cana subsp. bolanderi Lowell Ahart; John Dittes 2010-10-5 17298 Sierra On the south side of Highway 49, 4015 feet west of Antelope Valley Road intersection with Highway 49, 4.5 miles (air) west of Loyalton, 6.6 miles (air) northeast of Sierraville. 1494 Comment
  CHSC105782  Aster breweri Lowell Ahart 2010-9-15 17161 Sierra Open areas, around trees, about 20 yards southeast of the cabin, about 20 yards southeast of the upper 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
  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
  CHSC108127  Carex angustata Lowell Ahart 2011-9-23 17699 Sierra Forest floor, about 80 yards north of Pass Creek, about 320 yards south of Henness Pass Road, west of French Meadow, east of Forest Road 70, about 3 miles (air) northwest of Weber Lake. 2016 Comment
  CHSC11387  Linnaea borealis var. longiflora Lowell Ahart 1970-7-5 Sierra At Poverty 1066 Comment
  CHSC115173  Navarretia divaricata subsp. divaricata Lowell Ahart 2015-6-7 20217 A Sierra Along the dirt road, Lava Top, about 2 1/4 miles (air) north of the bridge across Fall River, about one mile southeast of Cascade, about 7 miles (air) northeast of Feather Falls, about 10 miles (air) west of La Porte. 1411 Comment
  CHSC32058  Aspidotis densa L. Ahart 1973-10-26 284 Sierra Near Alleghany. 1219 Comment
  CHSC32071  Garrya fremontii L. Ahart 1976-7-30 1184 Sierra On e side of Mt. Fillmore. Red Fir Forest. 1981 Comment
  CHSC37208  Polystichum imbricans L. Ahart 1982-7-28 3715 Sierra A little n of the Pacific Mine, ca. 5 mi e of LaPorte. 1700 Comment
  CHSC37231  Epilobium minutum L. Ahart 1982-7-28 3688 Sierra Ca. 1/4 mi n of Pacific Mine, ca. 5 mi e of La Porte. 1700 Comment
  CHSC42002  Orobanche fasciculata Lowell Ahart 1973-5-25 243 Sierra Found about 4 miles south-west of Alleghany. 914 Comment
  CHSC44576  Melica californica Lowell Ahart 1978-6-4 1755 Sierra Above the Foote Road, about 1 mile south of Alleghany. 1280 Comment
  CHSC44589  Poa secunda subsp. secunda Lowell Ahart 1978-6-4 1757 Sierra On the road cutbank along the Foote Road, about 4 miles south of Alleghany. 1219 Comment
  CHSC44855  Chaenactis douglasii var. douglasii Lowell Ahart 1977-8-2 1527 Sierra Ridge on the west side of Mount Fillmore, near the summit, about 12 air miles north-east of La Porte. 2194 Comment
  CHSC44860  Erigeron canadensis Lowell Ahart 1975-9-28 989 Sierra Along the edge of Highway 49, about 2 miles north-west of Sattley. 1676 Comment
  CHSC44866  Eriophyllum lanatum var. integrifolium Lowell Ahart 1975-6-28 823 Sierra About 2 air miles east of Gibsonville. 1981 Comment
  CHSC45515  Allotropa virgata Lowell Ahart 1978-8-13 1798 Sierra Branch of Negro Creek, about 4 miles north-west of Middlewaters,. 1645 Comment
  CHSC45549  Dysphania botrys Lowell Ahart 1976-10-1 1216 Sierra Growing on a pile or road gravel, along the edge of Ridge Road, this is the road that goes from Highway 49 to the town of Alleghany, about 3 miles south of Camptonville. 914 Comment
  CHSC46124  Gayophytum Lowell Ahart 1983-10-27 4491 Sierra Near a dirt road that is about 2 miles south-east of Jackson Meadow Reservoir, about 1 mile south of Pass Creek. 2011 Comment
  CHSC46169  Cystopteris fragilis Lowell Ahart 1981-6-23 2876 Sierra North of the dirt road and near the south-west base of Mount Etna, about 11 miles north-east of La Porte. 1828 Comment
  CHSC47684  Eriogonum spergulinum var. reddingianum Lowell Ahart 1989-8-16 6375 Sierra At Ahart Sheep Camp, about 1 mile north-west of Milton Reservoir. 1706 Comment
  CHSC54569  Carex angustata Lowell Ahart 1991-7-22 6684 Sierra Along a very small branch of Pass Creek in French Meadow, about 1/4 mile south of Henness Pass Road, about 3 miles north-west of Webber Lake. 2133 Comment
  CHSC59025  Juncus orthophyllus Lowell Ahart 1992-7-17 6789 Sierra In a small meadow, east of the logging road, about 2 (air) miles east of Quartz Point, about 6 (air) miles southeast of Downieville. 1706 Comment
  CHSC61776  Eurybia integrifolia Lowell Ahart 1993-9-10 7176 Sierra On the west side and near the end of a poor dirt road that leads to a camp and stream, on the north side of Mount Fillmore, about 1 mile southwest of the dirt road from Gibsonville to Johnsville. 2133 Comment
  CHSC61789  Silene invisa Lowell Ahart 1993-9-10 7196 Sierra At the end of a poor dirt road where there is a camp, water ditch and stream, on the north side of Mount Fillmore, about 1 mile south-west of the dirt road from Gibsonville to Johnsville. 2133 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
  CHSC61903  Poa cusickii subsp. epilis Lowell Ahart 1993-9-10 7216 Sierra On the north side of a ridge, on the north side of Mount Fillmore, about 1 1/2 miles south of the dirt road from Gibsonville to Johnsville. 2316 Comment
  CHSC61917  Cuscuta californica var. breviflora Lowell Ahart 1993-9-24 7254 Sierra On the west side of a poor dirt road that ends at a stream,on the north side of Mount Fillmore, about 3/4 mile south of the dirt road from Gibsonville to Johnsville Common. 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
  CHSC65172  Leptosiphon ciliatus Lowell Ahart 1995-8-7 7596 Sierra On the south side of the Pacific Crest Trail, on Bunker Hill Ridge, about 1/2 mile (air) south-west of Pilot Peak. 2011 Comment
  CHSC80923  Amaranthus californicus Lowell Ahart 2001-8-10 9076 Sierra Strand of Stampede Reservoir, about 1 mile southwest of Henness Pass Road, about 1 1/4 miles northwest of the Stampede Reservoir Dam. 1810 Comment
  CHSC81020  Chenopodium berlandieri Lowell Ahart 2001-8-10 9074 Sierra Strand of Sampede Reservoir, about 1 mile southwest of Henness Pass Road, about 1 1/4 miles northwest of the Stampede Reservoir Dam. 1810 Comment
  CHSC81178  Agrostis oregonensis Lowell Ahart 2001-8-10 9086 Sierra About 100 feet southeast of the dam, diversion dam across the Little Truckee River (water flows to Sierra Valley), about 100 yards south of Fiberboard Road (Forest Road 18), about 1/8 mile north of Henness Pass Road, about 5 miles (air) east of Webber Lake. 1920 Comment
  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
  CHSC94130  Lithophragma tenellum Lowell Ahart 2006-6-28 12865 Sierra About 3/4 mile (air) east of Lake Delahunty, about 2 miles (air) northeast of Gibsonville. 1784 Comment
  CHSC94136  Bromus laevipes Lowell Ahart 2006-6-21 12805 Sierra On the west side of the Foote Road, about 3.7 miles (by road) southwest of Alleghany. 1093 Comment
  CHSC94193  Monardella odoratissima subsp. glauca Lowell Ahart 2006-6-28 12882 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
  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
  CHSC94234  Castilleja pilosa Lowell Ahart 2006-6-28 12878 Sierra On the west 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. 1880 Comment
  HSC97033  Carex multicaulis L. Ahart 2006-6-28 12892 Sierra 3/4 mi. E of Lake Delahunty, 2 mi. NE of Gibsonville 1784 Comment
  JEPS102369  Tanacetum parthenium Lowell Ahart 2001-8-10 9084 Sierra about 5 air miles E of Webber Lake (on diversion dam on Little Truckee River, about 100 yds S of Fiberboard Road (Forest Road 18), about 1/8 mi N of Henness Pass Road) 1920 Comment
  JEPS102689  Juncus acuminatus Lowell Ahart 2001-9-28 9299 Sierra Around the drying ponds on the bottom of the Poverty Hill Hydraulic gold mine, north of Poverty Hill (town), about 4 miles (air) south of La Porte. 1524 Comment
  JEPS107580  Senecio triangularis Lowell Ahart 2005-8-30 12338 Sierra On a gravel bar along 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
  JEPS108804  Crepis pleurocarpa Lowell Ahart 2006-6-28 12881 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
  JEPS110049  Nemophila parviflora var. austiniae Lowell Ahart 2006-6-21 12833 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 1397 Comment
  JEPS110287  Malacothrix floccifera 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
  JEPS117603  Carex abrupta Lowell Ahart 2010-9-15 17191 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) e 2134 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
  JEPS87605  Calystegia malacophylla subsp. malacophylla Lowell Ahart 1994-7-1 7442 Sierra about 11 mi (air) ne Alleghany (about 1 1/2 mi ne of Middlewaters, e of Keystone Mountain, at Keystone Gap, steep rocky slope on n side Henness Pass Road, n side lgr pond); e of Keystone Mountain, Keystone Gap, ne of Middlewaters 1889 Comment
  JEPS87651  Raillardella argentea Lowell Ahart 1994-7-1 7436 Sierra n side of Henness Pass Rd e Keystone Mountain (about 1 1/2 mi ne of Middlewaters, about 11 air mi ne of Alleghany); Keystone Gap 2011 Comment
  JEPS95339  Pellaea bridgesii Lowell Ahart 1994-7-1 7439 Sierra 11 air miles NE of Alleghany (W side of the larger pond, N side of Henness Pass Road, at Keystone Gap, E of Keystone Mountain, 1 1/2 mi NE of Middlewaters) 1889 Comment
  JEPS96051  Lotus nevadensis var. nevadensis Lowell Ahart 1996-7-25 7687 Sierra 2 mi W of, in and along Henness Pass Road, French Meadow Webber Lake 1950 Comment
  JEPS98602  Isolepis setacea Lowell Ahart 2000-6-15 8478 Sierra Along the road gutter, near Gleason Spring, on the N side of the Henness Pass Road, ca 1 mile W of the intersection of Mountain House Road and Henness Pass Road, ca 3 miles (air) NW of Forest, ca 4 miles (air) NW of Alleghany. 1463 Comment
  RSA0106558  Selaginella wallacei Lowell Ahart 2015-5-9 20158 Sierra North side of the Canyon Creek Trail, trail on the north side of the North Fork of the Yuba River, about 300 yards west of Highway 49, about one mile west of Indian Valley. 693 Comment
  RSA0106561  Nemophila heterophylla Lowell Ahart 2015-5-9 20166 Sierra North side of the Canyon Creek Trail, about 300 yards southeast of the foot bridge across Boyce Ravine, trail on the north side of the North Fork of the Yuba River, about 3/4 mile west of Highway 49, about 1 3/4 miles west of Indian Valley. 717 Comment
  SBBG119805  Streptanthus polygaloides L. Ahart 2006-6-21 12807 Sierra W side of the Foote Rd, ca. 3.7 rd mi SW of Alleghany [cf. Streptanthus purpureus Sanchez Mata et al.] 1093 Comment
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Jun 21 2014
  SEINET10661856  Elymus sierrae Lowell Ahart 2011-9-20 Ahart 17681 Sierra T22N, R10E, northwest 1/4 Section 9. On the northwest side of the poor dirt road on the north side of Pilot Peak, about 9 miles (air) northeast of La Porte. 2073 Comment
  UC1562443  Linanthus ciliatus Lowell Ahart 1990-6-18 6526 Sierra about 1 mi ne Scales (e of road) 1524 Comment
  UC1586504  Phleum alpinum Lowell Ahart 1991-7-22 6693 Sierra about 3 mi nw Webber Lake (about 1/4 mi s of Henness Pass Road); French Meadow 2133 Comment
  UC1609218  Eurybia integrifolia Lowell Ahart 1993-9-10 7176 Sierra about 1 mi sw dirt road from Gibsonville to Johnsville (n side of mt., on w side and near end of poor dirt road); Mount Fillmore 2133 Comment
  UC1609353  Carex spectabilis Lowell Ahart 1993-9-10 7221 Sierra about 1 1/2 mi s of the dirt road from Gibsonville to Johnsville; Mount Fillmore 2255 Comment
  UC1609355  Juncus drummondii Lowell Ahart 1993-9-10 7200 Sierra about 1 mi sw of the dirt road from Gibsonville to Johnsville (about 1/4 mi s of where the poor dirt road ends at stream, camp and water ditch, on n side of Mt. Fillmore); Mt. Fillmore 2225 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-BC228231  Plagiobothrys hispidulus Lowell Ahart 1983-10-27 4483 Sierra Near a dirt road that is ca. 2 miles SE of Jackson Meadows Res., Ca. 1 mile S of Pass Cr., near Jackson Meadows Res. 2200 Comment
  CAS-BOT-BC419162  Persicaria maculosa Lowell Ahart 1976-10-1 s.n. Sierra 3 miles south of Camptonville, on the road that leads to Alleghany Comment
  CAS-BOT-BC458071  Orthilia secunda Lowell Ahart 1976-10-11 s.n. Sierra Mt. Fillmore 2133 Comment
  CAS-BOT-BC490236  Calochortus leichtlinii Lowell Ahart s.n. Sierra On north side of Mt. Fillmore. Red Fir Forest, Mt. Fillmore is about 12 mi e of La Porte. 2000 Comment
  HSC95572  Eleocharis decumbens L. Ahart 2000-7-13 8587 Sierra Upper W branch of Black Jack Ravine, on the W side of Hwy. 98, Harris Meadow, 7 mi. NE of Alleghany 1616 Comment
  SBBG125480  Carex abrupta L. Ahart 2010-9-15 17191 Sierra W side of poor rd, ca. 15 yrds N of first pond, ca. 20 yards NW of the cabin, ca. 50 yards SW of middle pond, at the spring, ca. 2.75 mi N of Yuba Pass on Hwy 49, ca. 4 mi E of Haskell Peak 2134 Comment
  SBBG128002  Gayophytum heterozygum L. Ahart 2010-9-15 17163 Sierra ca. 20 yards NW of the cabin, ca. 50 yards SW of the middle pond, at the spring, ca. 2.75 mi N of Yuba Pass on Hwy 49, ca. 4 mi E of Haskell Peak 2134 Comment
  SD134046  Elodea canadensis Lowell Ahart 1980-9-9 2614 Sierra Near Webber Lake. Growing in small man-made pond. 2200 Comment
  SEINET10554748  Elymus trachycaulus Lowell Ahart 1991-7-22 Ahart 6692 Sierra French Meadow, about 1/4 mile south of Henness Pass Road, about 3 miles north-west of Webber Lake. Uncommon. Mountain Meadow in Red Fir Forest. 2134 Comment
  SEINET13709774  Solidago canadensis subsp. elongata Lowell William Ahart, Lowell William Ahart 2001-1 9105 Sierra Near Diversion Dam across Little Truckee River, Just S of Fiberboard Road (Fsr 18), 1/8 Mi. N of Henness Pass Rd., 5 Air Mi. E of Webber Lake (T19N, R15E, SW 1/4 sec. 15) 6300 Ft. 1920 Comment
  SEINET6655540  Lotus nevadensis Peter Ahart, Lowell Ahart 1983-10-11 4466 Sierra Along edge of dirt road to Ahart Sheep Camp, ca. 1 miles N of Milton Reservoir, 3 miles NW of Jackson Meadow Reservoir. Yellow Pine Forest.; 0 1800 Comment
  UCD116041  Streptanthus polygaloides Lowell Ahart 1973-5-25 237 Sierra east of the Foote Road, about 2.5 miles southwest of Alleghany. 914 Comment
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Jun 21 2014
  CDA34722  Berula erecta L. Ahart, John Dittes 2010-7-3 16934 Siskiyou Along the west edge of the Shasta River, about 30 yards northwest of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada. Comment
  CHSC105281  Urtica dioica subsp. gracilis Lowell Ahart; John Dittes 2010-7-30 16961 Siskiyou On the south bank of the Shasta River, about 1 yard east of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada. 716 Comment
  CHSC106098  Persicaria hydropiperoides Lowell Ahart; John Dittes 2010-7-30 16933 Siskiyou 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) southeast of Grenada. 716 Comment
  CHSC106274  Schoenoplectus americanus Lowell Ahart; John Dittes 2010-7-30 16968 Siskiyou About 10 yards south of the Shasta River, about 50 yards east of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada. 716 Comment
  CHSC91239  Solanum dulcamara Lowell Ahart; John Dittes 2005-6-10 12078 Siskiyou In water on the north side of the Shasta River, about 60 yards northwest of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  CHSC91249  Lepidium perfoliatum Lowell Ahart; John Dittes 2005-6-9 11998 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
  CHSC91335  Bromus tectorum Lowell Ahart; John Dittes 2005-6-9 12010 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
  CHSC91343  Acmispon brachycarpus Lowell Ahart; John Dittes 2005-6-9 12014 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
  CHSC91345  Cryptantha flaccida Lowell Ahart; John Dittes 2005-6-9 12022 Siskiyou 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
  CHSC91358  Bromus japonicus Lowell Ahart; John Dittes 2005-6-9 12009 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
  CHSC91371  Elymus 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
  CHSC91390  Eleocharis rostellata Lowell Ahart; John Dittes 2005-6-10 12097 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
  HSC100792  Pyrrocoma lanceolata var. lanceolata Lowell Ahart, John Dittes 2010-7-30 16969 Siskiyou Shasta Springs Ranch, 2.6 (air) mi. NW of Big Springs Lake, 3.9 (air) mi. SE of Grenada, 6.3 (air) mi. NW of Dwinnel Dam. 779 Comment
  JEPS107369  Elymus elymoides subsp. californicus Lowell Ahart, John Dittes 2005-6-9 12019 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
  JEPS107377  Juniperus occidentalis var. occidentalis Lowell Ahart, John Dittes 2005-6-9 12021 Siskiyou Small low hill, north fence boundary, 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
  JEPS107386  Eleocharis parishii Lowell Ahart, John Dittes 2005-6-10 12096 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
  JEPS107391  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
  JEPS107409  Lomatium macrocarpum Lowell Ahart, John Dittes 2005-6-9 12032 Siskiyou Hill, south of a rock fence, about 100 yards northeast 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
  JEPS107482  Amsinckia menziesii var. menziesii Lowell Ahart, John Dittes 2005-6-9 12046 Siskiyou Along the west 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
  JEPS107491  Perideridia lemmonii Lowell Ahart, John Dittes 2005-6-10 12112 Siskiyou Rocky hillside, north of the rock fence, about 100 yards southeast of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 Comment
  JEPS107662  Puccinellia lemmonii Lowell Ahart, John Dittes 2005-6-9 12006 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
  JEPS107666  Lotus 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
  JEPS107673  Lotus humistratus Lowell Ahart, John Dittes 2005-6-9 12014 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
  JEPS107959  Lotus 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
  JEPS107960  Apera interrupta Lowell Ahart, John Dittes 2005-6-9 12007 Siskiyou Pasture field, on the east side of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada 774 Comment
  JEPS87838  Raillardella pringlei Lowell Ahart 1994-7-11 7546 Siskiyou on upstream side of Forest Road 26 (to Mt. Shasta) ca. 0.5 mi ne Gumboot Lake (w of Dunsmuir); Gumboot Creek 1783 Comment
  RSA715950  Polygonum arenastrum L. Ahart 2005-6-10 12060 Siskiyou Near a poor dirt road 80 yards N of the pump house along the Shasta River, 1.9 miles air S of Hwy 99/97 Cutoff, 6 miles air E SE of Grenada. 777 Comment
  RSA715956  Solanum dulcamara L. Ahart, John Dittes 2005-6-10 12078 Siskiyou On the N side of the Shasta River, about 60 yards NW 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
  RSA716051  Potentilla millefolia L. Ahart 2005-6-10 12095 Siskiyou 30 yards E of the Shasta River, near the south fence, 100 yards S of the pump house along the Shasta River, about 1.9 air miles S of highway 99/97 cutoff, about 6 air miles ESE of Grenada. 777 Comment
  SEINET10937598  Polygonum spergulariiforme Lowell Ahart, Peter Ahart 1983-9-13 Ahart 4411 Siskiyou Near Hwy 96, near the Klamath River, ca. 5 mi w of Interstate 5. Yellow Pine Forest; 1000 m. 1000 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-BC100290  Blennosperma nanum var. nanum Lowell Ahart 1983-5-14 3994 Sutter along West Butte Road, about 1/8 mile north of the Sacramento Outing Club, Sutter Buttes 35 Comment
  CAS-BOT-BC114211  Cyperus strigosus Lowell Ahart 1984-10-22 4822 Sutter On the south side of the South Butte, Sutter Buttes. 300 Comment
  CAS-BOT-BC114213  Cyperus strigosus Lowell Ahart 1977-7-24 s.n. Sutter On south side of South Butte. 400 Comment
  CAS-BOT-BC127393  Agrostis exarata Lowell Ahart 1984-5-21 4613 Sutter At the old homestead on the south side of the South Butte, Sutter Buttes. 400 Comment
  CAS-BOT-BC138025  Alopecurus carolinianus Lowell Ahart 1985-5-5 4896 Sutter Near the first gate to the Dean Ranch, about 0.25 mile north of Mallott Road, about 2 miles northeast of Sutter, Sutter Buttes. 35 Comment
  CAS-BOT-BC161518  Bromus tectorum Lowell Ahart 1983-5-4 3952 Sutter Along Pass Road, Sutter Buttes. About 4 miles west of Kellog Road, Sutter Buttes. 50 Comment
  CAS-BOT-BC161691  Bromus rubens Lowell Ahart 1981-4-13 2762 Sutter Sierra Nevada. Sutter Buttes. On a hill ca. 1/8 mile west of Dean Cabin. 106 Comment
  CAS-BOT-BC161693  Bromus rubens Lowell Ahart 1977-5-19 1474 Sutter South Butte, Sutter Buttes. 150 Comment
  CAS-BOT-BC180559  Amorpha californica var. californica Lowell Ahart 1986-5-24 5304 Sutter Near the W fence line, Dean Ranch, ca. 1 mi. W of the Dean Cabin, ca. 4.5 mi. NW of sutter, Sutter Buttes - Sierra Nevada 274 Comment
  CAS-BOT-BC200494  Triticum aestivum Lowell Ahart 1982-5-30 3464 Sutter Ca. 1/8 mi. W of the Myers Home, Myers Ranch. Sutter Buttes 50 Comment
  CAS-BOT-BC203139  Vitis californica Lowell Ahart 1985-5-5 4925 Sutter Huff Canyon, about 3/4 mile west of the Dean Cabin, Dean Ranch, Sutter Buttes 250 Comment
  CAS-BOT-BC20524  Carex densa Lowell Ahart 1984-5-21 4611 Sutter The old homestead on the south side of the South Butte, Sutter Buttes. 400 Comment
  CAS-BOT-BC206321  Malacothamnus fremontii Lowell Ahart 1985-5-20 5019 Sutter South slopes below the lower radio tower on the south side of teh South Butte, Sutter Buttes 650 Comment
  CAS-BOT-BC212258  Ribes quercetorum Lowell Ahart 1984-3-10 4502 Sutter On the east side and almost near teh top of Old Man, about 1/2 mile south of the Dean Cabin, Dean Ranch, Sutter Buttes 450 Comment
  CAS-BOT-BC238597  Sambucus nigra subsp. caerulea Lowell Ahart 1977-5-19 s.n. Sutter South Butte, Sutter Buttes 350 Comment
  CAS-BOT-BC258858  Phalaris aquatica Lowell Ahart 1982-6-20 3642 Sutter About 0.25 mi. NW of the Dean Cabin, Dean Ranch, Sutter Buttes 350 Comment
  CAS-BOT-BC278401  Vulpia microstachys var. ciliata Lowell Ahart 1981-4-13 2761 Sutter About 1/8 mi. W of Dean Cabin, Sutter Buttes 350 Comment
  CAS-BOT-BC278403  Vulpia microstachys var. ciliata Lowell Ahart 1981-4-29 2793 Sutter On a hill ca. 1/8 mi. W of Dean Cabin. Sutter Buttes 350 Comment
  CAS-BOT-BC283565  Lolium multiflorum Lowell Ahart 1982-5-30 3484 Sutter Ca 0.25 mile W of the Myers home, Myers Ranch 50 Comment
  CAS-BOT-BC285937  Conyza bonariensis Lowell Ahart 1983-9-4 4400 Sutter Around buildings at the Dean Cabin, Dean Ranch, Sutter Buttes 270 Comment
  CAS-BOT-BC361731  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
  CAS-BOT-BC55317  Hirschfeldia incana Lowell Ahart 1982-5-30 3524 Sutter A little south of the gravel pit, about 0.75 mile south of the Myers home, Myers Ranch, Sutters Buttes. 50 Comment
  CAS-BOT-BC55547  Ambrosia psilostachya Lowell Ahart 1981-9-10 s.n. Sutter South Butte, Sutter Buttes 450 Comment
  CAS-BOT-BC91536  Clematis lasiantha Lowell Ahart 1982-6-19 3601 Sutter Myers Ranch, Sutter Buttes. South of the south fence line, about 0.75 mile south of the Myers home. 50 Comment
  CDA3093  Chenopodium strictum var. glaucophyllum L. Ahart 2000-8-29 8673 Sutter On the north side of Pass Road, near the base of South Butte, Sutter Buttes, about 4 1/2 miles northwest of Sutter. Comment
  CHSC25477  Acmispon glaber L. Ahart 1977-5-19 1374 Sutter On the s side of South Butte, Sutter Buttes. 350 Comment
  CHSC34109  Eriogonum nudum var. pubiflorum L. Ahart 1981-9-10 3128 Sutter On the s side of South Butte; Sutter Buttes. 350 Comment
  CHSC34123  Xanthium strumarium L. Ahart 1981-9-10 3141 Sutter Along edge of a wash, on s side of South Butte, Sutter Buttes. 100 Comment
  CHSC36228  Bromus diandrus L. Ahart 1982-4-23 3312 Sutter W of Myers house, Myers Ranch, Sutter Buttes. 50 Comment
  CHSC36257  Collinsia sparsiflora L. Ahart 1982-4-17 3274 Sutter On n slopes, nw of the Dean Cabin, Dean Ranch, Sutter Buttes. 350 Comment
  CHSC36279  Trifolium variegatum var. major L. Ahart 1982-4-23 3305 Sutter W of the Myers home, Myers Ranch, Sutter Buttes. 50 Comment
  CHSC36280  Erodium brachycarpum L. Ahart 1982-4-23 3307 Sutter W of Myers home, Myers Ranch, Sutter Buttes. 50 Comment
  CHSC37143  Navarretia cotulifolia L. Ahart 1982-6-20 3616 Sutter In a vernal pool, just inside the first gate to the Dean Ranch, Sutter Buttes. 35 Comment
  CHSC37145  Phalaris paradoxa L. Ahart 1982-6-20 3619 Sutter In a vernal pool, just inside the first gate to the Dean Ranch, Sutter Buttes. 35 Comment
  CHSC37171  Centaurium tenuiflorum L. Ahart 1982-4-20 3620 Sutter Just inside the first gate to the Dean Ranch, Sutter Buttes. 35 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
  CHSC37328  Asclepias eriocarpa L. Ahart 1982-6-19 3592 Sutter Near a small wash, ca. 1/8 mile w of Myers home, Myers Ranch, Sutter Buttes. 50 Comment
  CHSC39553  Juglans californica var. hindsii Lowell Ahart 1983-8-4 4263 Sutter Near a small stream, near the west fence line, on the west side of the South Butte, Sutter Buttes. 60 Comment
  CHSC40350  Juncus exiguus Lowell Ahart 1985-6-23 5070 Sutter Near the west fence line, north of the dirt road and the dry stream, about 1 mile west of the Dean Cabin, Dean Ranch, Sutter Buttes. 274 Comment
  CHSC40466  Achillea millefolium Lowell Ahart 1985-5-5 4904 Sutter About 1 mile south-east of the Dean Cabin, Dean Ranch, about 3 1/4 miles north-west of Sutter, Sutter Buttes, Sutter County, California. 200 Comment
  CHSC41386  Cryptantha rostellata Lowell Ahart 1986-5-24 5286 Sutter Road cut, about 1/4 mile west of the fourth gate to the Dean Ranch, near the power line, about 3 1/4 miles north of Sutter, Sutter Buttes. 213 Comment
  CHSC41467  Pilularia americana Lowell Ahart 1986-5-4 5250 Sutter Near the first gate to 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
  CHSC41961  Centunculus minimus Lowell Ahart 1986-5-4 5246 Sutter Around the edges of a large vernal pool, near the first gate to the Dean Ranch, about 1/2 mile north of the intersection of Mallott road and Alf Road, about 2 miles north-east of Sutter, Sutter Buttes. 30 Comment
  CHSC42400  Poa secunda subsp. secunda Lowell Ahart 1977-4-5 1238 Sutter On a ridge, on the south side of the South Butte, Sutter Buttes. 182 Comment
  CHSC42747  Boechera breweri Lowell Ahart 1977-4-5 1258 Sutter On the west side of the South Butte, Sutter Buttes. 457 Comment
  CHSC44496  Acmispon wrangelianus Lowell Ahart 1977-4-5 1255 Sutter On the south side of the South Butte, Sutter Buttes. 457 Comment
  CHSC45190  Aphanes occidentalis Lowell Ahart 1982-4-23 3344 Sutter Near cow trails, west of the Myers home, Myers Ranch, Sutter Buttes. 45 Comment
  CHSC45513  Ranunculus hebecarpus Lowell Ahart 1977-4-7 1267 Sutter South-west of the Myers home, Myers Ranch, Sutter Buttes. 45