39.44250 39.54250 -121.66138 -121.56138 UC/JEPS: Consortium Search Results
Search Results — 847 specimen records retrieved (847 records with coordinates)
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 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
  CDA43099  Acer saccharinum L. P. Janeway 2013-2-25 11084 Butte Sacramento Valley.; North slope of levee on south side of Feather River, Oroville; opposite (north of) the north end of 2nd Ave and Rotary Park. Comment
  CDA43100  Acer saccharinum L. P. Janeway 2013-3-19 11085 Butte Sacramento Valley.; North slope of levee on south side of Feather River, Oroville; opposite (north of) the north end of 2nd Ave and Rotary Park. Comment
  CHSC110943  Acer saccharinum L. P. Janeway 2013-3-19 11085 Butte Sacramento Valley. North slope of levee on south side of Feather River, Oroville; opposite (north of) the north end of 2nd Ave and Rotary Park. 46 Comment
  CHSC110944  Acer saccharinum L. P. Janeway 2013-2-25 11084 Butte Sacramento Valley. North slope of levee on south side of Feather River, Oroville; opposite (north of) the north end of 2nd Ave and Rotary Park. 46 Comment
  CHSC90573  Achyrachaena mollis Jose Romero 1983-4-20 9 Butte Site located on the Oroville Wildlife Area. Junction of Larkin and Timothy Rds., 4 mi. s.w. of Oroville. 45 Comment
  CHSC78384  Acmispon americanus var. americanus Lowell Ahart 2000-7-18 8600 Butte Near a small pond, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. 42 Comment
  CHSC108834  Acmispon brachycarpus Lowell Ahart 2012-4-17 17878 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
  CHSC49839  Acmispon brachycarpus Vernon H. Oswald 1990-4-2 4140 Butte East side of Feather River in Oroville, Montgomery St access. Near the river directly w of Montgomery St. 42 Comment
  JEPS119579  Acmispon brachycarpus Lowell Ahart 2012-4-17 17878 Butte About 200 yards southeast of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. Comment
  UCD103754  Acmispon denticulatus R. N. Raynor; H. A. Hannesson 1941-5-9 s.n. Butte Feather River, 4 mi. S. of Oroville. Comment
  CHSC50668  Acmispon glaber Lowell Ahart 1990-5-21 6474 Butte In the borrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  CHSC49840  Acmispon parviflorus Vernon H. Oswald 1990-4-2 4143 Butte East side of Feather River in Oroville, ca. 0.25 mi S of the Montgomery St. access. 106 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
  CHSC108831  Acmispon strigosus Lowell Ahart 2012-4-17 17878 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
  CHSC49841  Acmispon strigosus Vernon H. Oswald 1990-4-2 4141 Butte East side of Feather River in Oroville, Montgomery St access. Occasional on river-washed dredge tailings near the river directly w of Montgomery St. 42 Comment
  JEPS119582  Acmispon strigosus Lowell Ahart 2012-4-17 17879 Butte About 200 yards southeast of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. Comment
  CHSC50669  Acmispon wrangelianus Lowell Ahart 1990-4-8 6443 Butte On the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  HSC102685  Aegilops neglecta J. P. Smith 2013-5-5 13699 Butte Near the boat ramp area north of Grand Avenue at the Thermalito Forebay Recreation Area South. 67 Comment
  CAS-BOT-BC110726  Aegilops triuncialis Lowell Ahart 1980-5-4 2162 Butte Thermalito. 65 Comment
  CDA1674  Aegilops triuncialis L. Ahart 2000-5-16 8357 Butte West of Larkin Road, about 1 1/4 miles south of the Oroville Airport. About 5 miles (air) southwest of Oroville. On the north side of the access road to the boat ramp at the Thermalito Afterbay. Comment
  CHSC78216  Aegilops triuncialis Lowell Ahart 2000-5-16 8357 Butte On the north 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
  JEPS98560  Aegilops triuncialis Lowell Ahart 2000-5-16 8357 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
  JEPS98705  Aegilops triuncialis Lowell Ahart 2000-5-16 8357 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
  CDA28124  Agrostis elliottiana L. Ahart 2000-4-16 8358 Butte On the N and S side of the access road to the boat ramp at the Thermalito Afterbay, W of LArkin Rd, ~ 1.25 mi S of the Oroville Airport, ~ 5 mi (air) SW of Oroville. Comment
  CHSC78218  Agrostis elliottiana Lowell Ahart 2000-5-16 8358 Butte On the margins of the Thermalito Afterbay, on the south and north 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
  JEPS98555  Agrostis elliottiana Lowell Ahart 2000-5-16 8358 Butte 5 air miles SW of Oroville (Thermalito Afterbay, S and N side of access road to boat ramp, W of Larkin Road, 1 1/4 mi S of Oroville Airport) 42 Comment
  JEPS98703  Agrostis elliottiana Lowell Ahart 2000-5-16 8358 Butte 5 air miles SW of Oroville (Thermalito Afterbay, S and N side of access road to boat ramp, W of Larkin Road, 1 1/4 mi S of Oroville Airport) 42 Comment
  CHSC50701  Agrostis exarata Lowell Ahart 1990-5-21 6475 Butte About 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  GH341211  Agrostis exarata H. N. Bolander, A. Kellogg et al. Unknown Summit, Cal Comment
  UC1562417  Agrostis exarata Lowell Ahart 1990-5-21 6475 Butte 1/4 mi s, 4/10 mi w of Pacific Heights Road, 4 1/2 mi sw of Oroville Feather River 30 Comment
  CAS-BOT-BC138422  Aira caryophyllea Lowell Ahart 1980-5-4 2165 Butte Thermalito. 65 Comment
  CAS-BOT-BC138413  Aira caryophyllea var. capillaris Lowell Ahart 1980-5-4 2174 Butte Thermalito. 65 Comment
  CHSC30021  Aira elegans L. Ahart 1980-5-4 2174 Butte South-west of the intersection of Nelson Ave. and 20th St. in Thermalito. 65 Comment
  CDA43009  Albizia julibrissin L. 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. Comment
  CDA43078  Albizia julibrissin L. P. Janeway 2011-7-7 10503 Butte Sacramento Valley.; Near edge of water, south side of Feather River just east of Bedrock Park, Oroville. Comment
  CHSC100052  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
  CHSC107926  Albizia julibrissin L. P. Janeway 2011-7-7 10503 Butte Sacramento Valley. Near edge of water, south side of Feather River just east of Bedrock Park, Oroville. On old gravel bar several feet from the water. 41 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
  RSA0058867  Albizia julibrissin Lowell A. 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
  CHSC96091  Alisma triviale L. P. Janeway 2006-7-19 8817 Butte Sacramento Valley. Waterfowl brood pond on shallow arm of Thermalito Afterbay, 225 m east of Wilber Road, 2.1 km south of Hwy 162. 41 Comment
  CHSC116575  Allium amplectens B. Castro; Robin Carter 2016-3-30 2127 Butte Sacramento Valley. CA1.6 air mi E of Hwy 99, 2 mi S of Hwy 162E and 1.5 mi SSW of the Oroville Airport, off N edge of SE ortion of the Thermalito Afterbay, near S end of old Wilbur Road. 44 Comment
  CHSC90579  Allium amplectens Jose Romero 1983-4-20 1 Butte Site on the Oroville Wildlife Area. Junction of Larkin and Timothy Roads, 4 mi southwest of Oroville. 45 Comment
  SEINET8466775 Image available Allium amplectens D. W. McNeal 1974-4-24 1426 Butte Along Hwy #70, 4.4 miles south of the Oroville Dam Exit (Hwy. #126) Comment
  CDA43368  Allium cepa D. G. Kelch 2012-9-19 12 .357a Butte Oroville, immediately west of sewage treatment plant. Comment
  CHSC115468  Allium hyalinum L. P. Janeway 2015-3-5 11634 Butte Sacramento Valley. North side of Thermalito Forebay, on the west side of Nelson Ave. 72 Comment
  CHSC115474  Allium hyalinum L. P. Janeway 2015-3-9 11635 Butte Sacramento Valley. Just north of the Thermalito Forebay North Picnic Area. 72 Comment
  CHSC115480  Allium hyalinum L. P. Janeway 2015-3-23 11643 Butte Sacramento Valley. North side of Thermalito Forebay, on the west side of Nelson Ave. 72 Comment
  CHSC54022  Allium hyalinum Vernon H. Oswald 1991-4-1 4477 Butte Nelson Ave on the west border of the Thermalito Forebay, west of Oroville. 70 Comment
  JEPS122447  Allium hyalinum L. P. Janeway 2015-3-9 11635 Butte Sacramento Valley. Just north of the Thermalito Forebay, North Picnic Area. Quad: Oroville 7.5' Comment
  JEPS122448  Allium hyalinum L. P. Janeway 2015-3-5 11634 Butte Sacramento Valley. North side of Thermalito Forebay, on the west side of Nelson Ave. Quad: Oroville 7.5' Comment
  JEPS122449  Allium hyalinum L. P. Janeway 2015-3-29 11643 Butte Sacramento Valley. North side of Thermalito Forebay, on the west side of Nelson Ave. Quad: Oroville 7.5'. Comment
  RSA0105547  Allium hyalinum L. P. Janeway 2015-3-5 11634 Butte Sacramento Valley. North side of Thermalito Forebay, on the west side of Nelson Ave. 72 Comment
  RSA0118750  Allium hyalinum L. P. Janeway 2015-3-23 11643 Butte Sacramento Valley. North side of Thermalito Forebay, on the west side of Nelson Ave. 72 Comment
  CAS-BOT-BC137943  Alopecurus saccatus Lowell Ahart 1980-5-4 2169 Butte Thermalito. 65 Comment
  CHSC47604  Alopecurus saccatus Lowell Ahart 1980-5-4 2169 Butte South-west of the intersection of Nelson Ave. and 20th Street in Thermalito. 60 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
  JEPS98447  Alopecurus saccatus Lowell Ahart 2000-5-18 8371 Butte 4 1/2 air miles SW of Oroville (on bottom of the Clay Pit, about 1/8 mi W of Oroville Airport and Larkin Road) 36 Comment
  CHSC105790  Ambrosia psilostachya Lowell Ahart 2010-9-13 17152 Butte Open dry areas, Oroville Wildlife Area, about 1/2 mile west of Pacific Heights Road, about 3 1/2 miles (air) northwest of Palermo. 31 Comment
  JEPS117527  Ambrosia psilostachya Lowell Ahart 2010-9-13 17152 Butte Open dry areas, Oroville Wildlife Area, about 1/2 mile west of Pacific Heights Road, about 3 1/2 miles (air) northwest of Palermo 31 Comment
  CHSC37415  Amsinckia intermedia R. A. Schlising; J. D. Jokerst, R. Banchero 1981-3-22 4005 Butte NW of Oroville and n of Thermalito Forebay in the Campbell Hills. 106 Comment
  UC172861  Amsinckia lycopsoides A. A. Heller 1913-3-9 10683 Butte hills 2 mi n Oroville Comment
  CHSC37420  Amsinckia menziesii R. A. Schlising; J. D. Jokerst, R. Banchero 1981-3-22 4004 Butte NW of Oroville and n of Thermalito Forebay, in the Campbell Hills. 106 Comment
  NY622094  Amsinckia verna A. A. Heller 1913-3-9 10683 Butte Hills 2 miles North of Oroville Comment
  UCD159566  Anaphalis margaritacea D. S. Park 2011-6-24 303 Butte Wetlands off Larkin Rd. 46 Comment
  UCD56063  Andropogon glomeratus var. pumilus Bellue 1942-3-17 s.n. Butte About 2 miles SE Oroville. Comment
  CAS-BOT-BC137801  Andropogon virginicus var. virginicus Lowell Ahart 1987-10-22 5926 Butte About 0.5 mile west of the north entrance to the Oroville Wildlife Refuge, west of Pacific Heights Road, about 5 miles southwest of Oroville. 38 Comment
  CAS-BOT-BC137802  Andropogon virginicus var. virginicus M. K. Bellue 1938-3-18 s.n. Butte Near Thermalito. Comment
  CAS-BOT-BC137803  Andropogon virginicus var. virginicus Bellue 1942-3-17 s.n. Butte About 2 miles east of Oroville. Thermalitos. Comment
  CHSC102295  Andropogon virginicus var. virginicus Lowell Ahart 2009-10-7 16409 Butte Just underwater when the Thermalito Afterbay is full, Larking Road access to the Thermalito Afterbay, about 5 miles (air) southwest of Oroville. 136 Comment
  CHSC43259  Andropogon virginicus var. virginicus Lowell Ahart 1987-10-22 5926 Butte About 1/2 mile west of the north entrance to the Oroville Wildlife Refuge, west of Pacific Heights Road, about 5 miles south-west of Oroville. 38 Comment
  CHSC50018  Anthriscus caucalis Lowell Ahart 1990-4-8 6436 Butte On the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CHSC106859  Antirrhinum Lowell Ahart 2011-5-1 17344 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
  CHSC108826  Arabidopsis thaliana Lowell Ahart 2012-4-17 17873 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
  CHSC50022  Arabidopsis thaliana Lowell Ahart 1990-3-9 6411 Butte Borrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  CHSC50023  Arabidopsis thaliana Lowell Ahart 1990-3-19 6416 Butte Borrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  JEPS119576  Arabidopsis thaliana Lowell Ahart 2012-4-17 17873 Butte About 200 yards southeast of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. Comment
  CAS-BOT-BC48254  Arctostaphylos viscida subsp. viscida Lowell Ahart 1990-3-9 6412 Butte About 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heighs Road, 30 Comment
  CHSC50037  Arctostaphylos viscida subsp. viscida Lowell Ahart 1990-3-9 6412 Butte About 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  CAS-BOT-BC400426  Aristolochia californica A. A. Heller 1913-3-9 10687 Butte Hills two miles north of Oroville Comment
  CAS-BOT-BC400431  Aristolochia californica John Thomas Howell 1959-9-20 34616 Butte Flats along Feather River about 1 mile west of Oroville 45 Comment
  UC176145  Aristolochia californica A. A. Heller 1913-3-9 10687 Butte hills 2 mi. n. of Oroville Comment
  CHSC105789  Artemisia douglasiana Lowell Ahart 2010-9-13 17153 Butte Open dry areas, Oroville Wildlife Area, about 1/2 mile west of Pacific Heights Road, about 3 1/2 miles (air) northwest of Palermo. 31 Comment
  RSA794971  Artemisia douglasiana L. Ahart 2010-9-13 17153 Butte Oroville Wildlife Area, about 0.5 miles west of Pacific Heights Road, about 3.5 air miles northwest of Palermo. 32 Comment
  CHSC108827  Astragalus gambelianus Lowell Ahart 2012-4-17 17880 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
  CHSC53951  Astragalus gambelianus Vernon H. Oswald 1991-4-15 4489 Butte Lake Oroville State Recreation Area along the northside of Thermalito Forebay, ca. 0.5 mi west of Hwy 70. 103 Comment
  JEPS119575  Astragalus gambelianus Lowell Ahart 2012-4-17 17880 Butte About 200 yards southeast of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. Comment
  UC1506099  Astragalus gambelianus Robert T. Clausen 1963-3-22 63016 Butte Oroville Sugarloaf Peak, Campbell Hills, Sacramento River drainage (Campbell Hills, se slope Sugarloaf Peak, Sacramento River drainage, Sacramento Valley) 150 Comment
  CHSC50024  Athysanus pusillus Lowell Ahart 1990-3-9 6414 Butte Banks on the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CAS-BOT-BC172672  Atriplex lentiformis Lowell Ahart 1987-10-22 5925 Butte About 150 yards west of the north entrance to the Oroville Wildlife Refuge, west of Pacific Heights Road, about 5 miles south-west of Oroville 38 Comment
  CHSC43257  Atriplex lentiformis Lowell Ahart 1987-10-22 5925 Butte About 150 yards west of the north entrance to the Oroville Wildlife Refuge, west of Pacific Heights Road, about 5 miles southwest of Oroville. 38 Comment
  CHSC47669  Atriplex serenana Lowell Ahart 1989-9-28 6400 Butte On the east side of Highway 70, near Garden Drive off ramp, Thermalito. 73 Comment
  CAS-BOT-BC176603  Atriplex serenana var. serenana Lowell Ahart 1989-9-28 6400 Butte On the east side of Highway 70, near Garden Drive off ramp, Thermalito 73 Comment
  CHSC47371  Azolla filiculoides Lowell Ahart 1989-11-12 6405 Butte About 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  CHSC50637  Azolla filiculoides Lowell Ahart 1990-5-20 6473 Butte About 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  JEPS111348  Azolla filiculoides R. V. Lansdown 2007-4-27 Butte Oroville Wildlife Area, W of Oroville. Complex of deep basins around the car park on the northern margin of the Wildlife Area. Comment
  SEINET3875617  Azolla filiculoides Lowell Ahart 1990-5-20 6473 Butte About 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville.; 0 30 Comment
  UC1562367  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
  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
  JEPS111347  Azolla mexicana R. V. Lansdown 2007-4-27 Butte Oroville Wildlife Area, W of Oroville. Complex of deep basins around the car park on the northern margin of the Wildlife Area. Comment
  CHSC87211  Blennosperma nanum var. nanum Lowell Ahart 2004-4-1 10706 Butte On the margins of vernal pools, on the north side of Nelson Avenue, about 45 yards west of the intersection of 20th Street and Nelson Avenue, Thermalito. 53 Comment
  JEPS106002  Blennosperma nanum var. nanum Lowell Ahart 2004-4-1 10706 Butte On the margins of vernal pools, on the north side of Nelson Avenue, about 45 yards west of the intersection of 20th Street and Nelson Avenue, Thermalito 53 Comment
  CAS-BOT-BC145684  Brachypodium distachyon John Thomas Howell 1961-9-22 36753 Butte Sierra Nevada. Feather River Highway 3 miles from Oroville. Comment
  CDA1769  Brachypodium distachyon L. Ahart 2000-5-16 8359 Butte West of Larkin Road, about 1 1/4 miles south of the Oroville Airport. About 5 miles (air) southwest of Oroville. On the north side of the access road to the boat ramp at the Thermalito Afterbay. Comment
  CHSC78221  Brachypodium distachyon Lowell Ahart 2000-5-16 8359 Butte On the north 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
  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
  JEPS98704  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
  CHSC81589  Briza maxima D. Tellefson 2000-4-27 Butte Near Table Mountain Golf Course, Oroville. 40 Comment
  CHSC88979  Briza maxima Christine Hantelman 2000-4-27 83 Butte Around vernal pools on preserve between Oroville airport runway and Table Mountain golf course. 60 Comment
  CAS-BOT-BC145541  Briza minor Lowell Ahart 1980-5-4 2183 Butte Thermalito. Comment
  CHSC35632  Briza minor R. E. Preston 1982-3-27 213 Butte SE corner of Larkin Rd and Oro Dam Blve int, Oroville. 51 Comment
  CHSC81588  Briza minor D. Tellefson 2000-4-27 Butte Near Table Mountain Golf Course, Oroville. 40 Comment
  CHSC88987  Briza minor Christine Hantelman 2000-4-8 65 Butte Oroville. On side of track along south edge of Table Mountain golf course. 60 Comment
  CHSC117352  Brodiaea coronaria B. Castro; Sabrina Bell 2015-5-21 2044 Butte Sacramento Valley. Ca 1.6 air mi E of hwy 99 off eastern edge of Thermolito Afterbay, 1.16 mi Sof Hwy 162, along SW extension of Wilbur Rd (the Afterbay perimeter road). A few yards S of road. 43 Comment
  UC1442862  Brodiaea coronaria subsp. coronaria Theodore F. Niehaus 1967-4-12 741 Butte Plumas Ave and 14th Street (along road and parking lot of Grocery Store Junction, nw Oroville); Oroville Comment
  UCR95785  Brodiaea minor C. B. Wolf 1937-5-14 8667 Butte Sacramento Valley, 4.5 mi west of Oroville, on the road to Richvale 46 Comment
  CHSC112887  Brodiaea nana Robin Carter; Sabrina Bell 2011-6-1 Butte Sacramento Valley. Ca 3 air mi E of Hwy 99, off SE corner of Thermalito Afterbay ca 0.5 mi NE of the Afterbay outlet and ca 400 ft NW of Larkin Road. 42 Comment
  UCD139154  Brodiaea nana Robert E. Preston 2003-5-11 2129 Butte around 2 miles south of Oroville Airport, on east side of Thermalito Afterbay, along Larkin Road. 30 Comment
  CAS-BOT-BC149549  Bromus carinatus var. carinatus John Thomas Howell 1961-9-22 36754 Butte Sierra Nevada. Feather River Highway 3 miles from Oroville. Comment
  CHSC106861  Bromus madritensis subsp. rubens Lowell Ahart 2011-5-1 17345 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
  JEPS118076  Bromus madritensis subsp. rubens Lowell Ahart 2011-5-1 17345 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
  CHSC59039  Bromus tectorum Lowell Ahart 1992-5-6 6748 Butte Along the west side of Lone Tree Road, about 1/4 mile south of the intersection of Powerhouse Hill Road and Lone Tree Road, about 4 miles south of Oroville. 60 Comment
  JEPS87186  Bromus tectorum Lowell Ahart 1992-5-6 6748 Butte about 4 mi s of Oroville (along w side of Lone Tree Road, about 1/4 mi s of intersection of Powerhouse Hill Road and Lone Tree Road); Lone Tree Road 60 Comment
  UC1594605  Bromus tectorum Lowell Ahart 1992-5-6 6748 Butte about 4 mi s of Oroville (along w side of Lone Tree Road, about 1/4 mi s of intersection of Powerhouse Hill Road and Lone Tree Road); Lone Tree Road 60 Comment
  CHSC3593  Calocedrus decurrens Susan Carrauthers 1966-2-22 18 Butte Table Mountain Golf Course (9th Hole). Ca. 5 mi E. of highway 99E. On Oroville Lateral Road. S. W. of city of Oroville. Comment
Read comments
Aug 28 2018
  CHSC100831  Calochortus luteus Janet Delight 1978-4-23 13 Butte 75 m w of Larkin Rd. at jct of Larkin Rd. and e entrance to Thermalito Afterbay, ca. 14.5 km n of Gridley. 46 Comment
  CHSC44983  Calochortus luteus Richard A. Nichols 1980-4-26 19 Butte 10 yds w of Hwy 70, ca. 3 mi sw of Oroville and 6.7 mi n of Jct Hwy 70 and E. Gridley Rd. 91 Comment
  CAS-BOT-BC270885  Calycadenia spicata John Thomas Howell 1962-6-15 37421 Butte 5 miles W of Oroville Comment
  CHSC112038  Calycadenia spicata Lowell Ahart 2012-8-22 18420 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
  CHSC30937  Calycadenia spicata L. Ahart 1980-7-4 2447 Butte SE of the jct of Nelson Ave and 20th St. in Thermalito. 65 Comment
  JEPS120033  Calycadenia spicata Lowell Ahart 2012-8-22 18420 Butte 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. Comment
  RSA795696  Calycadenia spicata L. Ahart 2012-8-22 18420 Butte Old road to pond, on the south side of the paved road to the shooting range in the clay pit, about 0.25 miles east of Larkin Road, about a mile south of the Oroville Airport. 38 Comment
  CAS-BOT-BC90927  Calycanthus occidentalis John Thomas Howell 1961-9-22 36752 Butte Sierra Nevada. Feather River Highway 3 miles from Oroville. 106 Comment
  CHSC108832  Camissonia contorta Lowell Ahart 2012-4-17 17882 Butte Bare areas where cobbles were removed for Oroville Dam, about 200 yards southeast of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. 35 Comment
  CHSC50051  Camissonia contorta Lowell Ahart 1990-3-28 6427 Butte In the borrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  JEPS119581  Camissonia contorta Lowell Ahart 2012-4-17 17882 Butte About 200 yards southeast of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. Comment
  CHSC35025  Capsella bursa-pastoris R. E. Preston 1982-3-27 206 Butte Along dirt road; Campbell Hills, n of Thermalito Afterbay, Oroville. In saddle. 121 Comment
  CAS-BOT-BC37883  Cardamine oligosperma Lowell Ahart 1980-5-4 2167 Butte Thermalito. 65 Comment
  CHSC106866  Carduus pycnocephalus Lowell Ahart 2011-5-1 17333 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
  CHSC50378  Carex feta Vernon Oswald; Lowell Ahart 1990-5-26 4255 Butte Oroville Wildlife Area on the east side of the Feather River, Pacific Heights Rd entrance, south of Oroville. 32 Comment
  UCD169098  Carex feta Ramona Robison 2013-4-16 11 Butte Clay Pit State Vehicular Recreation Area, located next to a riding trail and under a willow tree. 40 Comment
  CHSC78177  Carex gracilior Lowell Ahart 2000-5-18 8374 Butte On the bottom of the Clay Pit, near the cottonwood trees, about 1/8 mile west of the Oroville Airport and Larkin Road, about 4 1/2 miles (air) sothwest of Oroville. 36 Comment
  JEPS104626  Carex gracilior Lowell Ahart 2000-5-18 8374 Butte On the bottom of the Clay Pit, near the cottonwood trees, about 1/8 mile west of the Oroville Airport and Larkin Road, about 4 1/2 miles (air) sothwest of Oroville. 36 Comment
  CAS-BOT-BC94048  Carex inversa Peter F. Zika 2010-6-22 24981 Butte Montgomery Street near First Avenue, Oroville, Janeway's station, Sacramento Valley (ScV) 40 Comment
  CHSC101996  Carex inversa L. P. Janeway 2009-9-22 9954 Butte Sacramento Valley. Oroville: west side of Third Avenue between Montgomery Street and Safford Street. In narrow parkway strip between sidewalk and street. 49 Comment
  RSA769175  Carex inversa P. F. Zika 2010-5-16 24825 Butte Safford Street near Third Avenue, Oroville, Janeway s station, Sacramento Valley 50 Comment
  UCR228231  Carex inversa Peter F. Zika 2010-5-16 24825 Butte Sacramento Valley, Janeway's station, Oroville, Safford Street near Third Avenue 50 Comment
  CHSC50379  Carex vulpinoidea Vernon Oswald; Lowell Ahart 1990-5-26 4254 Butte Oroville Wildlife Area on the east side of the Feather River, Pacific Heights Rd entrance, south of Oroville. 32 Comment
  UC1562479  Carex vulpinoidea Vernon Oswald and Lowell Ahart 1990-5-26 4254 Butte s Oroville (Pacific Heights Rd. entrance, on the e side of the Feather River); Oroville Wildlife Area 32 Comment
  CHSC50060  Castilleja affinis Lowell Ahart 1990-3-28 6430 Butte On the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 39 Comment
  CHSC115356  Castilleja affinis subsp. affinis Lowell Ahart 2015-3-24 19962 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
  JEPS124196  Castilleja affinis subsp. affinis Lowell Ahart 2015-3-24 19962 Butte About 3 1/2 miles (air) southwest of Oroville. Comment
  CAS-BOT-BC255458  Castilleja applegatei var. pinetorum F. W. Pennell; A. A. Heller 1940-6-5 25692 Butte Along Feather River above Pulga, Route 24 487 Comment
  CHSC108829  Castilleja attenuata Lowell Ahart 2012-4-17 17875 Butte Area where cobbles were removed for Oroville Dam, about 100 yards south of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. 35 Comment
  CHSC77997  Castilleja attenuata Lowell Ahart 2000-5-13 8349 Butte 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
  CHSC90169  Castilleja attenuata Jose Romero 1983-4-20 8 Butte Site located on the Oroville Wildlife Area. Junction of Larkin and Timothy Rds., 4 mi. s.w. of Oroville. 45 Comment
  HSC102779  Castilleja attenuata L. Ahart 2012-4-17 17875 Butte About 5.0 air mi. SW of Oroville, ~ 0.5 mi. west of Pacific Heights Road, Oroville Wildlife Area; ~100 yds. south of where road turns north 35 Comment
  JEPS119587  Castilleja attenuata Lowell Ahart 2012-4-17 17875 Butte About 100 yards south of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. Comment
  JEPS98283  Castilleja attenuata Lowell Ahart 2000-5-13 8349 Butte 5 air mi SW of Oroville (S side of the access rd to the boat ramp at the Thermolito Afterbay, W of Larkin Road, 1 1/4 mi S of the Oroville Airport) 42 Comment
  RSA0058982  Castilleja attenuata Lowell A. Ahart 2012-4-17 17875 Butte Area where cobbles were removed for Oroville Dam, about 100 yards south of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. 35 Comment
  CHSC87197  Castilleja campestris subsp. campestris Lowell Ahart 2004-4-4 10724 Butte Bottom of a vernal pool, about 1/4 mile east of Wilber Road, east of the high hill crossed by Wilber Road, pasture, about 3 miles (air) west of Thermalito. 48 Comment
  JEPS105936  Castilleja campestris subsp. campestris Lowell Ahart 2004-4-4 10724 Butte Bottom of a vernal pool, about 1/4 mile east of Wilber Road, east of the high hill crossed by Wilber Road, pasture, about 3 miles (air) west of Thermalito 48 Comment
  CHSC70817  Centranthus ruber B. Castro 1995-4-13 559 Butte N edge of town of Oroville, on open, disturbed cobbly flat on the S side of the Feather River, just E of its crossing under Hwy 70. On S side of levee, in vacant lot by residential area. 51 Comment
  CHSC77992  Centunculus minimus Lowell Ahart 2000-5-13 8355 Butte On the margin of the Thermalito Afterbay, on the south side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 42 Comment
  CHSC87226  Centunculus minimus Lowell Ahart 2004-4-4 10716 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
  JEPS106000  Centunculus minimus Lowell Ahart 2004-4-4 10716 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
  JEPS98422  Centunculus minimus Lowell Ahart 2000-5-13 8355 Butte 5 air miles SW of Oroville (Thermalito Afterbay, S side of access road to the boat ramp, W of Larkin Road, 1 1/4 mi S of Oroville Airport) 42 Comment
  CHSC102522  Chamaesyce maculata Lowell Ahart 2009-10-7 16407 Butte Larkin Road access to the Thermalito Afterbay, about 5 miles (air) southwest of Oroville. 41 Comment
  CHSC47427  Chamaesyce maculata Lowell Ahart 1984-8-19 4786 Butte North of the state borrow area, west of Pacific Heights Road, about 5 miles south-west of Oroville. 36 Comment
  CHSC47429  Chamaesyce maculata Lowell Ahart 1984-8-19 4784 Butte North of the state borrow area, west on Pacific Heights Road, about 5 miles south-west of Oroville. 36 Comment
  JEPS115678  Chamaesyce maculata Lowell Ahart 2009-10-7 16407 Butte Larkin Road access to the Thermalito Afterbay, about 5 miles (air) southwest of Oroville 41 Comment
  RSA755368  Chamaesyce maculata L. Ahart 2009-10-7 16407 Butte Just under water when the Thermalito Afterbay is full, Larkin Road access to the Thermalito Afterbay, about 5 air miles southwest of Oroville. 41 Comment
  CHSC47422  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 1984-8-19 4785 Butte North of the state borrow area, west of Pacific Heights Road, about 5 miles south-west of Oroville. 36 Comment
  CHSC88960  Chorizanthe stellulata Christine Hantelman 2000-4-27 84 Butte On western end of vernal pool preserve between Oroville airport runway and Table Mountain golf course. 60 Comment
  CHSC87213  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
  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
  CAS-BOT-BC171880  Clarkia gracilis subsp. gracilis Lowell Ahart 1990-4-8 6437 Butte Steep banks on the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CHSC50052  Clarkia gracilis subsp. gracilis Lowell Ahart 1990-4-8 6437 Butte On banks, on the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CHSC112935  Clarkia purpurea subsp. purpurea B. Castro 2012-6-5 1927 Butte Sacramento Valley. CA 1.9 air mi E of Hyw 99, off SE corner of Thermalio Afterbay ca 540 ft NE of jcn of E. Hamilton and Larkin Roads. 38 Comment
  CHSC91105  Clarkia purpurea subsp. purpurea 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
  CHSC92589  Clarkia purpurea subsp. purpurea L. P. Janeway 2005-5-17 8393 Butte Sacramento Valley. 0.5 km west of Larkin Road, 1.7 km south of Hwy. 162, about 0.5 km northeast of Thermalito Afterbay. 43 Comment
  JEPS108567  Clarkia purpurea subsp. purpurea L. P. Janeway 2005-5-17 8393 Butte Sacramento Valley. 0.5 km west of Larkin Road, 1.7 km south of Hwy. 162, about 0.5 km northeast of Thermalito Afterbay 43 Comment
  RSA712756  Clarkia purpurea subsp. purpurea L. P. Janeway 2005-5-17 8393 Butte Sacramento Valley; 0.5 km west of Larkin Road, 1.7 km south of Hwy 162, about 0.5 km northeast of Thermalito Afterbay 43 Comment
  CAS-BOT-BC163644  Clarkia purpurea subsp. quadrivulnera Lowell Ahart 1980-5-4 2171 Butte Thermalito 65 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
  RSA715677  Clarkia purpurea subsp. quadrivulnera L. Ahart 2005-5-28 11820 Butte On the south side of Nelson Avenue, east of the bridge across the Thermalito Forebay, Thermalito 67 Comment
  CHSC43940  Clarkia unguiculata Vernon Oswald 1988-4-28 3287 Butte Oroville Wildlife Area, 1.8 mi s of the intrance on Hwy 162. 39 Comment
  CHSC46135  Clarkia unguiculata Lowell Ahart 1980-5-13 2266 Butte Along Pacific Heights Road, about 1 mile west of Highway 70, about 2 1/2 miles south-west of Oroville. 33 Comment
  CHSC50053  Claytonia exigua subsp. exigua Lowell Ahart 1990-3-19 6422 Butte Growing on steep banks, along the south side of Pacific Heights Road, about 3 1/2 miles southwest of Oroville. 36 Comment
  CHSC50061  Collinsia heterophylla Lowell Ahart 1990-4-8 6449 Butte On the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 39 Comment
  JEPS11919  Collinsia sparsiflora F. W. Pennell 1940-6-5 25679 Butte 2 mi above Oroville (Route 24); Feather River 609 Comment
  UC1012173  Collinsia sparsiflora var. collina F. W. Pennell, A. A. Heller 1940-6-5 25679 Butte Route 24; 2 mi. up, along Feather River, above Oroville. 609 Comment
  UC1012166  Collinsia tinctoria F. W. Pennell and A. A. Heller 1940-6-5 25680 Butte 2 mi up along Feather River above Oroville (Route 24); Feather River, Route 24 609 Comment
  CAS-BOT-BC286060  Conyza canadensis John Thomas Howell 1961-9-22 36732 Butte Bank of Feather River, Oroville 53 Comment
  JEPS128596  Cordylanthus pilosus subsp. hansenii Lowell Ahart 2017-9-1 21659 Butte Northeast of the intersection of Lone Tree Road and Powerhouse Hill Road, about 1/2 mile south of Oroville. Comment
  CHSC50322  Coronilla varia Vernon Oswald 1990-6-2 4278 Butte Butte County Center along Nelson Ave, Thermalito. 79 Comment
  CHSC78555  Cortaderia selloana Lowell Ahart 2000-9-2 8678 Butte Near 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
  CAS-BOT-BC427665  Crassula connata Lowell Ahart 1990-4-8 6442 Butte On the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville 33 Comment
  CHSC50035  Crassula connata Lowell Ahart 1990-4-8 6442 Butte On the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CHSC77995  Crucianella angustifolia Lowell Ahart 2000-5-13 8354 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
  JEPS98582  Crucianella angustifolia Lowell Ahart 2000-5-13 8354 Butte 5 mi SW of Oroville (Thermalito Afterbay, S side of access road to boat ramp, W of Larkin Road, 1 1/4 mi S of Oroville Airport) 42 Comment
  JEPS98714  Crucianella angustifolia Lowell Ahart 2000-5-13 8354 Butte 5 mi SW of Oroville (Thermalito Afterbay, S side of access road to boat ramp, W of Larkin Road, 1 1/4 mi S of Oroville Airport) 42 Comment
  CAS-BOT-BC190088  Crypsis schoenoides Lowell Ahart 1984-8-19 4788 Butte North of the state burrow area, west of Pacific Hieghts Road, about 5 miles southwest of Oroville. 40 Comment
  CHSC47612  Crypsis schoenoides Lowell Ahart 1984-8-19 4788 Butte In an area where gravel is removed, north of the state borrow area, west of Pacific Heights Road, about 5 miles south-west of Oroville. 36 Comment
  CHSC106884  Cryptantha flaccida Lowell Ahart 2011-5-1 17336 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
  CHSC44476  Cryptantha flaccida Lowell Ahart 1988-5-15 6001 Butte On dredger tailings, about 1/4 mile east of Highway 70, about 1/2 mile south of Oroville Dam Boulevard, south of Oroville. 42 Comment
  CHSC78545  Cyperus bipartitus Lowell Ahart 2000-8-23 8663 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
  CHSC68380  Cyperus eragrostis L. P. Janeway 1987-5-7 2024 Butte Table Mountain Road where it is right at the base of the railroad fill and overlooking Thermalito Forebay. 91 Comment
  CHSC45157  Cyperus erythrorhizos Lowell Ahart 1984-8-19 4789 Butte In an area where gravel is removed, north of the state burrow area, west of Pacific Heights Road, about 5 air miles south-west of Oroville. 36 Comment
  CHSC78486  Cyperus flavescens Lowell Ahart 2000-8-23 8664 Butte On the margins of a small pond, about 1/2 mile west of Pacific Heights road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. 42 Comment
  UCR263569  Cyperus flavescens Lowell Ahart 2000-8-23 8664 Butte Sacramento Valley, about 1/2 mile west of Pacific Heights road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville 43 Comment
  CDA42934  Cyperus iria L. Ahart 2012-10-5 18476 Butte South edge of parking area at the restroom, end of road to the Larkin Road Boat Launch Area, about 1/4 mile west of Larkin Road, about 2 miles (air) southwest of the Oroville Airport. Comment
  CHSC109762  Cyperus iria Lowell Ahart 2012-10-5 18476 Butte South edge of parking area at the restroom, end of road to the Larkin Road Boat Launch Area, about 1/4 mile west of Larkikng Road, about 2 miles (air) southwest of the Oroville Airport. 28 Comment
  HSC103917  Cyperus iria L. Ahart 2012-10-5 18476 Butte About 2 mi. (air) SW of the Oroville Airport; south edge of parking area at the end of the road to Larkin Road Boat Launch Area 28 Comment
  JEPS119912  Cyperus iria Lowell Ahart 2012-10-5 18476 Butte South edge of parking area at the restroom, end of road to the Larkin Road Boat Launch Area, about 1/4 mile west of Larking Road, about 2 miles (air) southwest of Oroville Airport. Comment
  RSA0060810  Cyperus iria Lowell A. Ahart 2012-10-5 18476 Butte South edge of parking area at the restroom, end of road to the Larkin Road Boat Launch Area, about 1/4 mile west of Larking Road, about 2 miles (air) southwest of the Oroville Airport. 28 Comment
  UCD169602  Cyperus iria Lowell Ahart 2012-10-5 18476 Butte About 1/4 mile west of Larking Road, about 2 miles (air) southwest of the Oroville Airport. South edge of parking area at the restroom, end of road to the Larkin Road Boat Launch Area. 28 Comment
  CHSC78488  Cyperus niger Lowell Ahart 2000-8-23 8662 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
  UCR263570  Cyperus niger Lowell Ahart 2000-8-23 8662 Butte Sacramento Valley, about 1/2 mile west of Pacific Heights road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville 43 Comment
  CHSC68419  Cyperus strigosus L. P. Janeway 1986-10-19 1941 Butte Table Mountain Road about 0.7 mi northwest of Garden Drive, where it is right at the base of the railroad fill and overlooking the Thermalito Forebay. 91 Comment
  CHSC78489  Cyperus strigosus Lowell Ahart 2000-8-23 8661 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
  JEPS98272  Cyperus strigosus Lowell Ahart 2000-8-23 8661 Butte 4 air miles SW of Oroville (Oroville Wildlife Area, 1/2 mi W of Pacific Heights Road) 42 Comment
  CHSC105788  Daucus carota Lowell Ahart 2010-9-13 17153 -A Butte Open dry areas, Oroville Wildlife Area, about 1/2 mile west of Pacific Heights Road, about 3 1/2 miles (air) northwest of Palermo. 31 Comment
  JEPS117528  Daucus carota Lowell Ahart 2010-9-13 17153 -A Butte Open dry areas, Oroville Wildlife Area, about 1/2 mile west of Pacific Heights Road, about 3 1/2 miles (air) northwest of Palermo 31 Comment
  UCD127424  Daucus pusillus R. N. Raynor 1941-5-9 s.n. Butte Feather River, 4 miles south of Oroville. Comment
  CAS-BOT-BC8573  Delphinium hansenii A. A. Heller 1938-5-28 15110 Butte 2.5 miles E of Oroville on Highway 24 Comment
  POM253331  Delphinium hansenii A. A. Heller 1938-5-28 15110 Butte 2.5 miles from Oroville on the Feather River Hwy. Comment
  UC726245  Delphinium hansenii A. A. Heller 1938-5-28 15110 Butte grassy slopes on Feather River Hwy 2 1/2 mi e Oroville Comment
  CHSC117611  Delphinium hansenii subsp. hansenii L. P. Janeway 2016-4-26 11937 Butte Sacramento Valley. Along Nelson Road 1.0 Road-km west off its bridge across Thermalito Forebay; where the road crosses Campbell Hills. 94 Comment
  UC854134  Delphinium hansenii subsp. hansenii A. A. Heller 1938-5-28 15110 Butte slopes on Feather River Hwy 2 1/2 mi from Oroville Comment
  RSA31775  Delphinium hesperium A. A. Heller 1938-5-28 15110 Butte 2.5 miles from Oroville on the Feather River Hwy. Comment
  CHSC50055  Delphinium patens subsp. patens Lowell Ahart 1990-3-28 6429 Butte On the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 39 Comment
  CAS-BOT-BC17017  Delphinium variegatum Lowell Ahart 1980-5-4 2185 Butte Thermalito. 65 Comment
  CHSC52504  Delphinium variegatum Jose Romero 1983-4-20 11 Butte Site located on the Oroville Wildlife Area. Junction of Larkin and Timothy Rds., 4 mi. s.w. of Oroville. 45 Comment
  CHSC59343  Delphinium variegatum Thomas J. Van Wagner 1992-4-9 9 Butte W side of Calif. State Highway 70, 4.5 km s of Calif. State Highway 162, Oroville. 30 Comment
  CHSC65507  Delphinium variegatum subsp. variegatum Ron P. Garcia 1995-4-11 18 Butte Ca. 100 ft s of Rabe Rd, ca. 0.4 mi e of Larkin Rd, ca. 4 mi sw of Oroville. Fernandez Land Grant. 47 Comment
  CHSC65826  Delphinium variegatum subsp. variegatum Mark S. Cederborg 1995-4-11 18 Butte Ca. 100 ft s of Rabe Rd, ca. 0.4 mi e of Larkin Rd, ca. 4 mi sw of Oroville. Fernandez Land Grant. 47 Comment
  CAS-BOT-BC192650  Deschampsia danthonioides Lowell Ahart 1980-5-4 2170 Butte Thermalito 65 Comment
  CAS-BOT-BC192658  Deschampsia danthonioides John Thomas Howell; Gordon H. True 1967-5-7 42175 Butte Northwest outskirts of Oroville north of the Feather River Comment
  CAS-BOT-BC254523  Dichanthelium acuminatum subsp. acuminatum John Thomas Howell 1961-9-22 36729 Butte Feather River, Oroville 53 Comment
  CHSC90608  Dichelostemma multiflorum Jose Romero 1983-4-20 19 Butte Site on the Oroville Wildlife Area. Junction of Larkin and Timothy Roads, 4 mi southwest of Oroville. 45 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
  CDA35058  Dittrichia graveolens L. P. Janeway 2010-11-17 10220 Butte Sacramento Valley; Oroville; in gravel parking area at east side of Feather River Ranger District office (875 Mitchell Ave.) Comment
  CDA43367  Dittrichia graveolens D. G. Kelch 2012-9-19 12 .356 Butte Oroville, immediately west of sewage treatment plant. Comment
  CHSC106282  Dittrichia graveolens L. P. Janeway 2010-11-17 10220 Butte Sacramento Valley. Oroville; in gravel parking area at east sie of Feather River Ranger District office (875 Mitchell Ave.). 59 Comment
  CHSC97741  Dittrichia graveolens Lowell Ahart 2007-11-3 14577 Butte On the west side of Highway 70, about 100 yards north of Nelson Avenue, Thermalito. 71 Comment
  JEPS115054  Dittrichia graveolens Lowell Ahart 2007-11-3 14577 Butte On the west side of Highway 70, about 100 yards north of Nelson Avenue, Thermalito 71 Comment
  UC175531  Dodecatheon hendersonii A. A. Heller 1913-3-9 10686 Butte two mi n Oroville; n of Oroville Comment
  CHSC112932  Downingia bicornuta var. bicornuta B. Castro; Sabrina Bell 2012-5-23 1922 Butte Sacramento Valley. Ca 1.6 air mi E of Hwy 99 and1 mi N of Hwy 162E off NE edge of Thermallito Afterbay, 0.5 mi WNW old 'Oroville Jen' on maps, now jcn of Tres Vias and Wilbur Roads. Elevation 139-144 ft. 43 Comment
  CHSC112927  Downingia cuspidata B. Castro; Tom Boullion 2011-4-21 1846 Butte Sacramento Valley. N side of Thermalito Forebay/Power calanl, ca 0.3 mi W of Hwy 70 and ca 0.2 mi S of Garden Drive, at S end of picnic/boat ramp recreation area, on northside of Oroville. 71 Comment
  CHSC87196  Downingia cuspidata Lowell Ahart 2004-4-4 10725 Butte Bottom of a vernal pool, about 1/4 mile east of Wilber Road, east of the high hill crossed by Wilber Road, pasture, about 3 miles (air) west of Thermalito. 48 Comment
  JEPS105996  Downingia cuspidata Lowell Ahart 2004-4-4 10725 Butte Bottom of a vernal pool, about 1/4 mile east of Wilber Road, east of the high hill crossed by Wilber Road, pasture, about 3 miles (air) west of Thermalito 48 Comment
  CHSC112885  Downingia ornatissima var. ornatissima Robin Carter; Sabrina Bell 2011-6-1 Butte Sacramento Valley. Ca 3 air mi E of Hwy 99, off SE corner of Thermalito Afterbay ca 0.5 mi NE of the Afterbay outlet and ca 170 ft NW of Larkin Road. 42 Comment
  CHSC50025  Draba verna var. aestivalis Lowell Ahart 1990-3-19 6424 Butte Along the south side of Pacific Heights Road, about 3 1/2 miles south-west of Orovile. 36 Comment
  JEPS124171  Draba verna var. aestivalis Lowell Ahart 2015-3-14 19945 Butte About 400 yards north of Cherokee Road, about 7 miles (air) north of Oroville. Comment
  CAS-BOT-BC70853  Dryopteris arguta Lowell Ahart 1990-3-19 6417 Butte on the south side of Pacific Heights Road, about 3 1/2 miles southwest of Oroville 33 Comment
  CHSC50014  Dryopteris arguta Lowell Ahart 1990-3-19 6417 Butte On the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CHSC47403  Dysphania ambrosioides Lowell Ahart 1989-11-12 6404 Butte In a disturbed area near a small pond, in the borrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  CHSC45548  Dysphania botrys Lowell Ahart 1984-8-19 4781 Butte Growing on dry bare sand in an area where gravel is removed, north of the state borrow area, west of Pacific Heights Road, about 5 miles south-west of Oroville. 36 Comment
  SEINET6836767 Image available Echinochloa crus-galli H. E. Brown 1896-10-2 114 Butte near Oroville 53 Comment
  CHSC115209  Elatine Lowell Ahart 2015-5-5 20141 Butte North side of large vernal pool, about 30 yards north of Larkin Road, about 400 yards south of Larkin Road Boat Launch Area, near the Thermalito Afterbay, about one mile south west of the Oroville Airport, about 6 miles (air) southwest of Oroville. 42 Comment
  CHSC114986  Elatine californica Lowell Ahart 2015-5-5 20142 Butte Thermalito Afterbay, about 30 yards north of Larkin road, about 400 yards south of Larkin Road Boat Launch Area, about 1 mile southwest of the Oroville Airport, about 6 miles (air) southwest of Oroville. 42 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
  CHSC78193  Eleocharis engelmannii Lowell Ahart 2000-5-18 8370 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
  CHSC68434  Eleocharis macrostachya L. P. Janeway 1986-10-19 1939 Butte Along small creek feeding Thermalito Forebay from the northeast; between the forebay and Hwy 99, and just north of Thermalito Forebay State Park picnic grounds. 67 Comment
  CHSC77999  Eleocharis macrostachya Lowell Ahart 2000-5-13 8339 Butte On the bottom of a small wash, south 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
  CHSC78184  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. 36 Comment
  JEPS98563  Eleocharis macrostachya Lowell Ahart 2000-5-18 8369 Butte 4 1/2 air miles SW of Oroville (on bottom of the Clay Pit, about 1/8 mi W of Oroville Airport and Larkin Road) 36 Comment
  CHSC78564  Eleocharis obtusa Lowell Ahart 2000-9-4 8685 Butte Along the west margin of a large pond on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CDA2610  Eleocharis pachycarpa L. Ahart 2000-8-3 8676 Butte 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. Comment
  CHSC78399  Eleocharis pachycarpa Lowell Ahart 2000-7-18 8597 Butte On the margins of a small pond, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. 42 Comment
  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
  JEPS98506  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
  CHSC96094  Eleocharis quadrangulata L. P. Janeway 2006-7-19 8816 Butte Sacramento Valley. Waterfowl brood pond on shallow arm of Thermalito Afterbay, 225 m east of Wilber Road, 2.1 km south of Hwy 162. 41 Comment
  JEPS99030  Eleocharis quadrangulata Vernon H. Oswald 1998-10-22 9676 Butte Pond on east side of Larkin Rd. just south of the boundary of the Oroville WA at the clay pits, ca. 1 mi south of the Oroville Municipal Airport. Along the receding north shore of the pond. 41 Comment
  JEPS99032  Eleocharis quadrangulata Vernon H. Oswald, Lowell Ahart, and Barbara Ertter 1998-10-22 9676 Butte 1 mi S of Oroville Municipal Airport (N shore of pond at clay pits on E side of Larkin Rd. just S of boundary of the Oroville WA) 41 Comment
  RSA0046897  Eleocharis quadrangulata Richard Carter 2006-7-31 17113 Butte Ca. 4 airmiles S Oroville jct. Hwy CA 70 and Hwy CA 162, Oroville Wildlife Area. Comment
  RSA724860  Eleocharis quadrangulata L. P. Janeway 2006-7-19 8816 Butte Waterfowl brood pond on shallow arm of Thermalito Afterbay, 225 m east of Wilbur Road, 2.1 km south of Hwy. 162. NAD83. 41 Comment
  SEINET9770291 Image available Eleocharis quadrangulata Richard Carter 2006-7-31 Butte ca. 4 airmiles S Oroville jct. Hwy CA 70 and Hwy CA 162, Oroville Wildlife Area Comment
  CHSC78567  Eleocharis radicans Lowell Ahart 2000-9-2 8680 A Butte On the margins of and 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
  CHSC78568  Eleocharis radicans Lowell Ahart 2000-8-30 8677 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
  JEPS98469  Eleocharis radicans Lowell Ahart 2000-8-30 8677 Butte 3 1/3 air miles SW of Oroville (SE of a large pond 100 yds S of Feather River, W of break in levee, 1/2 air mile W of Pacific Heights Road); Oroville Wildlife Area 42 Comment
  UCD61842  Elymus glaucus R. N. Raynor; H. A. Hannesson 1941-5-9 Butte Feather River, 4 mi. S. of Oroville. Comment
  CHSC112926  Epilobium campestre B. Castro; Sabrina Bell 2012-6-12 1928 Butte Sacramento Valley. Ca 1.7 air mi E of Hwy 99 and 0.75 mi N of Hwy 162 of NE edge of Thermalito Thermalito Afterbay, 0.45 mi SW of old 'Oroville Jcn' on maps, now jcn of Tres Vias and Wilbur Roads. 45 Comment
  CHSC34013  Epilobium campestre L. Ahart 1981-7-18 2937 Butte On bottom of a drain ditch along the edge of the Pacific Heights Rd, ca. 1/8 mi w of Hwy 70, ca. 3 mi sw of Oroville. 35 Comment
  CHSC112936  Epilobium torreyi B. Castro 2012-6-5 1924 Butte Sacramento Valley. CA 1.9 air mi E of Hyw 99, off SE corner of Thermalio Afterbay ca 0.16 mi ENE of jcn of E. Hamilton and Larkin Roads. 36 Comment
  SEINET9765342 Image available Equisetum hyemale Richard Carter 2006-7-31 Butte ca. 4 airmiles S Oroville jct. Hwy CA 70 and Hwy CA 162, Oroville Wildlife Area 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
  JEPS117724  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
  RSA794970  Equisetum hyemale var. affine L. Ahart 2010-9-13 17151 Butte Oroville Wildlife Area, about 0.5 miles west of Pacific Heights Road, about 3.5 air miles northwest of Palermo. 32 Comment
  CAS-BOT-BC292432  Eragrostis pectinacea Lowell Ahart 1984-8-19 4790 Butte About 5 miles SW of Oroville.Area where gravel is removed, N of the state burrow area, W of Pacific Heights Road. 40 Comment
  CAS-BOT-BC284083  Eragrostis pectinacea var. pectinacea Lowell Ahart 1986-11-14 5469 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
  CHSC102287  Eragrostis pilosa var. pilosa Lowell Ahart 2009-10-7 16408 Butte Larkin Road access to the Thermalito Afterbay, about 4 miles (air) southwest of Oroville. 41 Comment
  CHSC110382  Eragrostis pilosa var. pilosa Lowell Ahart 2012-8-22 18421 Butte South edge of parking area at the restroom, end of road to the Larkin Road Boat Launch Area, about 1/4 mile west of Larkin Road, about 2 miles (air) southwest of the Oroville Airport. 28 Comment
  CHSC112629  Eragrostis pilosa var. pilosa Lowell Ahart 2013-10-16 19117 Butte South edge of the paved road, about 100 yards southeast of the restroom, near end of road to the Larkin Road Boat Launch Area, about 1/4 mile west of Larkin Road, about 2 miles (air) southwest of the Oroville Airport. 28 Comment
  JEPS120165  Eragrostis pilosa var. pilosa Lowell Ahart 2012-8-22 18421 Butte South edge of parking area at the restroom, end of road to the Larkin Road Boat Lunch Area, about 1/4 mile west of Larking Road, about 2 miles (air) southwest of the Oroville Airport. Comment
  JEPS120726  Eragrostis pilosa var. pilosa Lowell Ahart 2013-10-16 19117 Butte South edge of the paved road, about 100 yards SE of the restroom, near end of road to the Larkin Road Boat Launch Area, about 1/4 mile W of Larkin Road, about 2 air miles SW of the Oroville Airport. Comment
  RSA755367  Eragrostis pilosa var. pilosa L. Ahart 2009-10-7 16408 Butte Just under water when the Thermalito Afterbay is full, Larkin Road access to the Thermalito Afterbay, about 5 air miles southwest of Oroville. 41 Comment
  UC1130391  Eremocarpus setiger F. W. Embree 1934-5-3 51 Butte 2 mi ese Pacific Heights; Marysville Quadrangle Comment
  NY43577  Eremocarpus setigerus S. Bianco 1995-1-9 1024 Butte Messilla Valley Rd, 0.8km from interection of Durham & Pentz Rd 134 Comment
  CHSC41868  Ericameria cuneata Lowell Ahart 1986-10-23 5409 Nevada Along the dirt road, on the north side of Bowman Lake. 1706 Comment
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Jun 17 2008
  CHSC78768  Eriochloa contracta Lowell Ahart 2000-9-11 8687 Butte On the west 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) south of Oroville. 42 Comment
  JEPS98463  Eriochloa contracta Lowell Ahart 2000-9-11 8687 Butte 5 air miles S of Oroville (W side of access road to boat ramp, Thermalito Afterbay, W of Larkin Road, 1 1/4 mi S of Oroville Airport) 42 Comment
  JEPS98674  Eriochloa contracta Lowell Ahart 2000-9-11 8687 Butte On the west 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) south of Oroville. 42 Comment
  UCD169099  Eriochloa contracta Ramona Robison 2013-4-16 10 Butte Clay Pit State Vehicular Recreation Area. 41 Comment
  CHSC50674  Eriodictyon californicum Lowell Ahart 1990-4-28 6468 Butte In the borrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  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
  CHSC96904  Eriogonum roseum Lowell Ahart 2007-7-24 14390 Butte About 200 yards west of the high gravel road (at turn, before washout), about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. 35 Comment
  JEPS113681  Eriogonum roseum Lowell Ahart 2007-7-24 14390 Butte About 200 yards west of the high gravel road (at turn, before washout), about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville 35 Comment
  RSA726310  Eriogonum roseum L. Ahart 2007-7-24 14390 Butte About 200 yards west of the high gravel road (at turn, before washout), about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. 36 Comment
  CHSC34019  Eriogonum vimineum L. Ahart 1981-7-18 2941 Butte On dry gravelly sandy soil in the burrow area ca. 4.5 mi sw of Oroville. Plant is scattered along the dirt rd near the base of the levee. 35 Comment
  CHSC51369  Eriogonum wrightii var. trachygonum Vernon Oswald 1990-10-13 4464 Butte Path on the south side of the Feather River between the fish hatchery and Bedrock Park, Oroville. 42 Comment
  CAS-BOT-BC308154  Eriophyllum lanatum var. grandiflorum L. Constance; J. L. Morrison 1938-4-30 2176 Butte Near the Feather River 5 mi. SE of Oroville Comment
  CAS-BOT-BC211104  Eryngium pinnatisectum John Thomas Howell 1962-6-15 37419 Butte 5 miles west of Oroville Comment
  CHSC78396  Erythranthe cardinalis Lowell Ahart 2000-7-18 8599 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
  CHSC44780  Erythranthe glaucescens R. Banchero 1980-4-7 96 Butte Ca 0.5 mi W of the Thermalito Forebay Picnic Area, ca 2.5 mi NW of Oroville. 91 Comment
  CHSC84397  Erythranthe guttata Lowell Ahart 2003-7-23 10438 Butte Around the margins of ponds, Oroville Wildlife Area, about 1/4 mile west of Pacific Heights Road, about 5 miles (air) southwest of Oroville. 26 Comment
  CHSC90170  Erythranthe microphylla Jose Romero 1983-4-20 2 Butte Site located on the Oroville Wildlife Area. Junction of Larkin and Timothy Rds., 4 mi. s.w. of Oroville. 45 Comment
  CAS-BOT-BC419507  Eschscholzia lobbii A. A. Heller 1913-3-9 10681 Butte Hills two miles north of Oroville Comment
  UC176139  Eschscholzia lobbii A. A. Heller 1913-3-9 10681 Butte 2 mi n Oroville Comment
  UCD73329  Eschscholzia lobbii Chuck Hughes 2008-3-18 20 Butte Oroville, west of 6th St. between Nelson Ave. school and baseball fields. Field has been approved for development. 71 Comment
  CDA43084  Eucalyptus tereticornis L. P. Janeway 2011-2-22 10226 Butte Sacramento Valley.; South side Feather River just east of Bedrock Park, Oroville. Comment
  JEPS118625  Eucalyptus tereticornis L. P. Janeway 2011-2-22 10226 Butte Sacramento Valley. Near edge of water, south side Feather River just east of Bedrock Park, Oroville. Lamoine 7.5 minute quadrangle, 665-2, 1998 Comment
  CDA38820  Euphorbia peplus L. Ahart 2012-4-17 17877 Butte Area where cobbles were removed for Oroville Dam, about 100 yards south of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) sothwest of Oroville. Comment
  CHSC108825  Euphorbia peplus Lowell Ahart 2012-4-17 17887 Butte Area where cobbles were removed for Oroville Dam, about 100 yards south of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. 35 Comment
  JEPS119577  Euphorbia peplus Lowell Ahart 2012-4-17 17877 Butte About 100 yards south of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. Comment
  CAS-BOT-BC77691  Ficus carica John Thomas Howell 1961-9-22 36750 Butte Feather River Highway 3 miles from Oroville Comment
  CHSC107431  Foeniculum vulgare L. P. Janeway 2011-7-7 10504 Butte Sacramento Valley. Oroville, north edge of the levee on the south side of the Feather River, 125 m east of Bedrock Park. 49 Comment
  CHSC107927  Foeniculum vulgare L. P. Janeway 2011-7-7 10504 Butte Sacramento Valley. Oroville, north edge of the levee on the south side of the Feather River, 125 m east of Bedrock Park. 49 Comment
  CHSC30016  Galium aparine L. Ahart 1980-5-4 2158 Butte South-west of intersection of Nelson Ave and 20th St, in Thermalito. 65 Comment
  CHSC77996  Galium tricornutum Lowell Ahart 2000-5-13 8453 Butte On the margin of the Thermalito Afterbay, on the south side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 42 Comment
  JEPS98579  Galium tricornutum Lowell Ahart 2000-5-13 8353 Butte 5 mi SW of Oroville (Thermalito Afterbay, S side of access road to boat ramp, W of Larkin Road, 1 1/4 mi S of Oroville Airport) 42 Comment
  JEPS98713  Galium tricornutum Lowell Ahart 2000-5-13 8353 Butte 5 air miles SW of Oroville (margin of Thermalito Afterbay, W side of access road to the boat ramp, W of Larkin Road, 1 1/4 mi S of Oroville airport) 42 Comment
  CHSC77979  Gamochaeta argyrinea Lowell Ahart 2000-5-13 8345 Butte On the margin of the Thermalito Afterbay, on the west 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
  JEPS98564  Gamochaeta argyrinea Lowell Ahart 2000-5-13 8345 Butte 5 air miles SW of Oroville (margin of the Thermalito Afterbay, W side of the access road to the boat ramp, W side of Larkin Road) 42 Comment
  JEPS98708  Gamochaeta argyrinea Lowell Ahart 2000-5-13 8345 Butte 5 air miles SW of Oroville (margin of the Thermalito Afterbay, W side of the access road to the boat ramp, W side of Larkin Road) 42 Comment
  UC1948358  Gamochaeta argyrinea John L. Strother with Richard L. Moe 2012-5-17 1373 Butte ca. 8 km southwest of Oroville, east side of Thermalito Afterbay at Larkin Road boatlaunch ramp Comment
  CHSC50648  Gamochaeta stachydifolia Lowell Ahart 1990-4-28 6466 Butte In the burrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  UC1562451  Gamochaeta stachydifolia Lowell Ahart 1990-4-28 6466 Butte in the borrow area about 1/4 mi s Feather River ( about 4/10 mi w of Pacific Heights Road, about 4 1/2 mi sw of Oroville) 30 Comment
  UCD159565  Gamochaeta ustulata D. S. Park 2011-6-24 302 Butte Growing on edges of Thermalito Afterbay. 43 Comment
  CDA2169  Gastridium phleoides L. Ahart 2000-5-13 8340 Butte 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
  CHSC78003  Gastridium phleoides Lowell Ahart 2000-5-13 8340 Butte 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
  JEPS98425  Gastridium ventricosum Lowell Ahart 2000-5-13 8340 Butte 5 air miles SW of Oroville (S side of access road to boat ramp at the Thermalito Afterbay, W of Larkin Road, 1 1/4 mi S of Oroville Airport) 42 Comment
  CDA43064  Genista monspessulana L. P. Janeway 2011-3-9 10228 Butte Sacramento Valley.; South side Feather River just east of Bedrock Park, Oroville; about 10-15 m back from the edge of the water and about 1 m higher. Comment
  CDA43067  Genista monspessulana L. P. Janeway 2011-5-2 10249 Butte Sacramento Valley.; South side Feather River just east of Bedrock Park, Oroville; about 10-15 m back from the edge of the water and about 1 m higher. Comment
  CHSC106133  Genista monspessulana L. P. Janeway 2011-3-9 10228 Butte Sacramento Valley. South side Feather River just east of Bedrock Park, Oroville; about 10-15 m back from the edge of the water and about 1 m higher. 42 Comment
  CHSC108762  Genista monspessulana L. P. Janeway 2011-5-2 10249 Butte Sacramento Valley. South side Feather River just east of Bedrock Park, Oroville; about 10-15 m back from the edge of the water. 42 Comment
  JEPS118597  Genista monspessulana L. P. Janeway 2011-3-9 10228 Butte Sacramento Valley. South side Feather River just east of Bedrock Park, Oroville; about 10-15 m back from the edge of the water and about 1 m higher. Oroville 7.5; quad. Comment
  JEPS118635  Genista monspessulana L. P. Janeway 2011-5-2 10249 Butte Sacramento Valley. South side Feather River just east of Bedrock Park, Oroville; about 10-15 m back from the edge of the water and about 1 m higher. Comment
  CHSC50046  Geranium carolinianum Lowell Ahart 1990-4-8 6433 Butte On steep banks, on the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CHSC50047  Geranium dissectum Lowell Ahart 1990-4-8 6434 Butte On steep banks, on the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CHSC50048  Geranium molle Lowell Ahart 1990-4-8 6435 Butte On steep banks, on the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CHSC1257  Gilia tricolor J. Gulick 1929-3-17 Butte Oroville. 53 Comment
  CHSC2482  Gilia tricolor W. Fitzwater 1958-4-3 Butte Oroville plains. Comment
  JEPS95316  Glinus lotoides Lowell Ahart 1994-10-8 7554 Butte about 1 1/2 mi S of Oroville Airport (S side of the Shooting Area, SW of Oroville) 45 Comment
  CHSC112928  Gratiola ebracteata B. Castro; Tom Boullion 2011-4-21 1845 Butte Sacramento Valley. N side of Thermality Forebay/Power Canal, ca 0.3 mi W of Hwy 70 and ca 0.2 mi S of Garden Drive, at S end of picnic/boat ramp recreation area, on the north end of Oroville. 71 Comment
  CHSC115210  Gratiola ebracteata Lowell Ahart 2015-5-5 20140 Butte Bottom of a large vernal pool, about 30 yards north of Larkin Road, about 400 yards south of Larkin Road Boat Launch Area, near the Thermalito Afterbay, about one mile south west of the Oroville Airport, about 6 miles (air) south west of Oroville. 42 Comment
  JEPS123885  Gratiola ebracteata Lowell Ahart 2015-5-5 20140 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
  CHSC4573  Grindelia hirsutula var. davyi C. Glascock 1965-5-18 431 Butte SW corner of Nelson and 4th Ave., Thermalito. Comment
  CHSC118505  Hardenbergia violacea L. P. Janeway 2017-2-27 12177 Butte Sacramento Valley. On chain-link fence behind buildings and parking area of 875 Mitchell Ave., Oroville (Feather River Ranger District office). 50 Comment
  CHSC51855  Hemizonia congesta subsp. luzulifolia L. P. Janeway 1986-10-19 1943 Butte Between hwy 99 and Thermalito Forebay Picnic Ground. 67 Comment
  CHSC115296  Herniaria hirsuta var. hirsuta Lowell Ahart 2015-5-5 20145 Butte Dredge tailings on south sides of the road, Oroville Wildlife Area, about 3/4 mile south of the Headquarters, about 3/4 mile south of Thermalito. 39 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
  CHSC87190  Hesperevax acaulis var. acaulis Lowell Ahart 2004-4-4 10710 Butte About 20 yards north of the faint old fence ridge, about 175 yards east of Wilber Road, east-northeast of the high hill crossed by Wilber Road, pasture, about 3 miles (air) west of Thermalito. 48 Comment
  JEPS105997  Hesperevax acaulis var. acaulis Lowell Ahart 2004-4-4 10710 Butte About 20 yards north of the faint old fence ridge, about 175 yards east of Wilber Road, east-northeast of the high hill crossed by Wilber Road, pasture, about 3 miles (air) west of Thermalito 48 Comment
  JEPS106224  Hesperevax acaulis var. acaulis Lowell Ahart 2004-4-4 10710 Butte About 20 yards north of the faint old fence ridge, about 175 yards east of Wilber Road, east-northeast of the high hill crossed by Wilber Road, pasture, about 3 miles (air) west of Thermalito 48 Comment
  CHSC32378  Heterotheca oregona var. compacta J. D. Jokerst 1980-7-21 999 Butte Sand bars adjacent to the Feather River where it intersects Table Mountain Blvd. Downtown Oroville. Comment
  CHSC34051  Heterotheca oregona var. compacta L. Ahart 1981-7-18 2940 Butte In the burrow area ca. 4.5 mi sw of Oroville. Along dirt road near the base of the levee. 35 Comment
  CAS-BOT-BC143347  Horkelia californica var. elata John Thomas Howell 1961-9-22 36748 Butte Feather River Highway 3 miles from Oroville Comment
  CHSC42583  Hydrocotyle umbellata Vernon Oswald 1985-6-26 1865 Butte Oroville Wildlife Area ca. 0.6 mi s of the Hwy 162 entrance. 36 Comment
  CHSC78511  Hydrocotyle umbellata Lowell Ahart 2000-9-2 8680 Butte On the margins of and 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
  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
  JEPS113728  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
  CHSC78385  Hypericum mutilum Lowell Ahart 2000-7-18 8602 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
  CHSC92048  Hypericum mutilum Lowell Ahart 2005-8-14 12331 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. 28 Comment
  JEPS107575  Hypericum mutilum Lowell Ahart 2005-8-14 12331 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 28 Comment
  RSA716404  Hypericum mutilum L. Ahart 2005-8-14 12331 Butte Oroville Wildlife Area, about 1/2 mile west of Pacific Heights Road, about 3 1/2 miles (air) northwest of Palermo. 28 Comment
  CAS-BOT-BC312933  Hypochaeris glabra John Thomas Howell 1961-9-22 36718 Butte Bank of Feather River, Oroville 53 Comment
  CHSC108761  Hypochaeris glabra L. P. Janeway 2011-6-7 10368 Butte Sacramento Valley. Along Nelson Ave 1.0 road km west of its bridge over Thermalito Forebay, about 5.7 air km west of Oroville. Weedy edge of road side drainage. 99 Comment
  CHSC87218  Isoetes nuttallii Lowell Ahart 2004-4-4 10717 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
  JEPS106158  Isoetes nuttallii Lowell Ahart 2004-4-4 10717 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
  CHSC87217  Isoetes orcuttii Lowell Ahart 2004-4-4 10726 Butte Bottom of a vernal pool, about 1/4 mile east of Wilber Road, east of the high hill crossed by Wilber Road, cattle pasture, about 3 miles (air) west of Thermalito. 48 Comment
  JEPS106164  Isoetes orcuttii Lowell Ahart 2004-4-4 10726 Butte Bottom of a vernal pool, about 1/4 mile east of Wilber Road, east of the high hill crossed by Wilber Road, cattle pasture, about 3 miles (air) west of Thermalito 48 Comment
  CHSC67429  Jensia rammii James D. Jokerst; Chuck Ricard 1993-4-12 3950 Butte Vernal pool preserve S and adjacent to Table Mtn. Municipal Golf Course, W and adjacent to Oroville Municipal Airport. 53 Comment
  CDA37214  Juncus acuminatus CDFA Staff 2004-7-1 s.n. Butte Thermalito Afterbay. 0 Comment
  CHSC49696  Juncus acuminatus Vernon Oswald 1985-5-20 1776 Butte Oroville Wildlife Area near the outlet of Thermalito Afterbay. Comment
  CHSC78002  Juncus acuminatus Lowell Ahart 2000-5-13 8341 Butte On the margin of the Thermalito Afterbay, on the west 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
  JEPS98524  Juncus acuminatus Lowell Ahart 2000-5-13 8341 Butte 5 air miles SW of Oroville (S side of access road to boat ramp at the Thermalito Afterbay, W of Larkin Road, 1 1/4 mi S of Oroville Airport) 42 Comment
  CHSC96973  Juncus articulatus Lowell Ahart 2007-7-11 14286 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
  JEPS113839  Juncus articulatus Lowell Ahart 2007-7-11 14286 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
  CHSC47529  Juncus bufonius var. bufonius Lowell Ahart 1980-5-4 2179 Butte Open pasture field, south-west of the intersection of Nelson Avenue and 20th. Street, Thermalito. 60 Comment
  CHSC30508  Juncus capitatus N. E. H. Prouty 1980-4-25 145 Butte Off of Serene Lane. 82 Comment
  CHSC47539  Juncus capitatus Lowell Ahart 1980-5-4 2159 Butte Vernal pool, in an open field south-west of the intersection of Nelson Avenue and 20th. Street in Thermalito. 60 Comment
  CHSC87193  Juncus capitatus Lowell Ahart 2004-4-4 10718 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
  JEPS105998  Juncus capitatus Lowell Ahart 2004-4-4 10718 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
  SBBG119954  Juncus capitatus L. Ahart 2004-4-4 10718 Butte ca. 5 yards E of Wilber Rd, N of the high hill crossed by Wilber Rd, S of the wash, ca. 3 air mi W of Thermalito 48 Comment
  CHSC50382  Juncus diffusissimus Vernon Oswald 1990-6-2 4280 Butte Oroville Wildlife Area on the northwest side of the Feather River, just upstream from the outlet of Thermalito Afterbay. 33 Comment
  CHSC50696  Juncus diffusissimus Lowell Ahart 1990-5-21 6476 Butte Near the west edge of a small pond, in the borrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  CHSC78400  Juncus diffusissimus Lowell Ahart 2000-7-18 8596 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
  CHSC96936  Juncus diffusissimus Lowell Ahart 2007-7-11 14287 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
  JEPS113870  Juncus diffusissimus Lowell Ahart 2007-7-11 14287 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
  UC1562371  Juncus diffusissimus Lowell Ahart 1990-5-21 6476 Butte about 4.5 mi sw Oroville (about 0.25 mi s of Feather River, about 0.4 mi w of Pacific Heights Road, w. edge of small pond) 30 Comment
  UC1562391  Juncus diffusissimus Lowell Ahart 1990-5-21 6476 Butte about 4.5 mi sw Oroville (about 0.25 mi s of Feather River, about 0.4 mi w of Pacific Heights Road, w. edge of small pond) 30 Comment
  CHSC96878  Juncus effusus subsp. pacificus Lowell Ahart 2007-7-11 14289 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
  CHSC96974  Juncus effusus subsp. pacificus Lowell Ahart 2007-7-11 14288 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
  JEPS113843  Juncus effusus subsp. pacificus Lowell Ahart 2007-7-11 14288 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
  JEPS113850  Juncus effusus subsp. pacificus Lowell Ahart 2007-7-11 14289 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
  CHSC66970  Juncus leiospermus var. ahartii James D. Jokerst; Chuck Ricard 1993-4-12 3947 Butte Vernal pool preserve S and adjacent to Table Mtn. Municipal Golf Course, W and adjacent to Oroville Municipal Airport. 53 Comment
  CHSC50383  Juncus patens Vernon Oswald; Lowell Ahart 1990-5-26 4256 Butte Oroville Wildlife Area on the east side of the Feather River, Pacific Heights Rd entrance, south of Oroville. Bordering a dredge pond. 32 Comment
  CHSC50384  Juncus tenuis Vernon Oswald; Lowell Ahart 1990-5-26 4257 Butte Oroville Wildlife Area on the east side of the Feather River, Pacific Heights Rd entrance, south of Oroville. Bordering a dredge pond. 32 Comment
  CHSC96881  Juncus tenuis Lowell Ahart 2007-7-11 14293 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
  JEPS113860  Juncus tenuis Lowell Ahart 2007-7-11 14293 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
  UC1562478  Juncus tenuis Vernon Oswald and Lowell Ahart 1990-5-26 4257 Butte s of Oroville (Pacific Heights Rd entrance, on the e side of the Feather River); Oroville Wildlife Area 32 Comment
  CDA37364  Juncus usitatus CDFA Staff 2004-7-1 s.n. Butte Thermalito Afterbay. 0 Comment
  CHSC96886  Juncus usitatus Lowell Ahart 2007-7-11 14291 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
  CHSC96956  Juncus usitatus Lowell Ahart 2007-7-11 14292 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
  CHSC96975  Juncus usitatus Lowell Ahart 2007-7-11 14290 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
  JEPS113747  Juncus usitatus Lowell Ahart 2007-7-11 14291 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
  JEPS113748  Juncus usitatus Lowell Ahart 2007-7-11 14292 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
  RSA729996  Juncus usitatus L. Ahart 2007-7-11 14292 Butte 11 yards west of the high gravel road (at turn before washout), about 0.5 mi. west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air)SW of Oroville. 36 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
  CHSC50686  Keckiella breviflora var. glabrisepala Lowell Ahart 1990-5-21 6477 Butte About 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  JEPS123883  Keckiella breviflora var. glabrisepala Lowell Ahart 2015-5-5 20143 Butte Oroville Wildlife Area, about one mile south of the Headquarters, about one mile south of Thermalito. Comment
  RSA0111938  Keckiella breviflora var. glabrisepala Lowell A. 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. 40 Comment
  UC1562418  Keckiella breviflora var. glabrisepala Lowell Ahart 1990-5-21 6477 Butte about 4.5 mi sw Oroville (about 0.25 mi s of the Feather River, about 0.4 mi w of Pacific Heights Road) 30 Comment
  NY790276  Keckiella corymbosa J. V. Monachino 1952-7-23 s.n. Butte Oroville, at outskirts of the city on the Feather River. Comment
  CHSC92058  Kyllinga brevifolia Lowell Ahart 2005-8-14 12332 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. 28 Comment
  JEPS107554  Kyllinga brevifolia Lowell Ahart 2005-8-14 12332 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 28 Comment
  JEPS107967  Kyllinga brevifolia Lowell Ahart 2005-8-14 12332 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 28 Comment
  CAS-BOT-BC341291  Lagophylla glandulosa John Thomas Howell 1961-9-22 36746 Butte Feather River Highway, 3 miles from Oroville Comment
  CHSC42274  Lamium amplexicaule L. P. Janeway 1987-4-14 2004 Butte Oroville, Thermalito Forebay North Picnic Area. 70 Comment
  CHSC45315  Landoltia punctata Lowell Ahart 1988-10-16 6187 Butte Dredge pond located ca. 300 ft ne of intersection of Pacific Heights Rd. and Hwy 70, ca. 1 mi s of Oroville. 45 Comment
  CHSC90626  Lasthenia californica Jose Romero 1983-4-20 20 Butte Oroville Wildlife Area, junction of Larkin and Timothy Roads, 4 mi southwest of Oroville. 45 Comment
  CHSC112889  Lasthenia fremontii Robin Carter; Sabrina Bell 2011-6-1 n.s. Butte Sacramento Valley. Ca 3 air mi E of Hwy 99, off SE corner of Thermalito Afterbay outlet and ca 170 ft NW of Larkin Road. 42 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
  JEPS98423  Lathyrus angulatus Lowell Ahart 2000-5-13 8351 Butte 5 air miles SW of Oroville (near margin of Thermalito Afterbay, S side of access road to boat ramp, w of Larkin Road, 1 1/4 mi S of Oroville Airport) 42 Comment
  UCD169101  Lathyrus odoratus Ramona Robison 2013-4-15 2 Butte Clay Pit State Vehicular Recreation Area. 41 Comment
  CHSC35631  Layia fremontii R. E. Preston 1982-3-27 212 Butte SE corner of int Larkin Rd and Oro Dam Blvd, Oroville. 51 Comment
  CHSC90592  Layia fremontii Jose Romero 1983-4-20 14 Butte Site located on the Oroville Wildlife Area. Junction of Larkin and Timothy Roads, 4 mi s.w. of Oroville. 45 Comment
  CAS-BOT-BC274352  Leersia oryzoides John Thomas Howell 1961-9-22 36730 Butte Bank of Feather River, Oroville 53 Comment
  CHSC106885  Leontodon saxatilis subsp. longirostris Lowell Ahart 2011-5-1 17335 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
  CHSC108760  Leontodon saxatilis subsp. longirostris L. P. Janeway 2011-6-7 10367 Butte Sacramento Valley. Along Nelson Ave 1.0 road km west of its bridge over Thermalito Forebay, about 5.7 air km west of Oroville. Weedy edge of road side drainage. 99 Comment
  JEPS118322  Leontodon saxatilis subsp. longirostris Lowell Ahart 2011-5-1 17335 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
  UCD73331  Leontodon saxatilis subsp. longirostris Chuck Hughes 2008-3-18 22 Butte Oroville, west of 6th St. between Nelson Ave. school and baseball fields. Field has been approved for development. 71 Comment
  CDA43062  Lepidium strictum L. P. Janeway 2010-11-17 10233 Butte Sacramento Valley.; Oroville; in gravel parking area at east side of Feather River Ranger District office (875 Mitchell Ave.). Comment
  CHSC106603  Lepidium strictum L. P. Janeway 2011-4-13 10233 Butte Sacramento Valley. Oroville; in gravel parking area at east side of Feather River Ranger District office (875 Mitchell Ave.) 59 Comment
  CHSC106883  Lepidium strictum Lowell Ahart 2011-5-1 17337 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
  CHSC35026  Lepidium strictum R. E. Preston 1982-3-27 210 Butte Center of dirt road; s border of State Shooting Area, ca. 2 mi s of Oroville Municipal Airport. 45 Comment
  CDA32437  Leptochloa fascicularis L. Ahart 2000-5-18 8372 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. Comment
  JEPS98448  Leptochloa fascicularis Lowell Ahart 2000-5-18 8372 Butte 4 1/2 air miles SW of Oroville (on bottom of the Clay Pit, about 1/8 mi W of Oroville Airport and Larkin Road) 36 Comment
  CHSC78225  Leptochloa fusca subsp. fascicularis Lowell Ahart 2000-5-18 8372 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
  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
  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
  JEPS120029  Lessingia nana Lowell Ahart 2012-8-22 18419 Butte 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. Comment
  UC1287396  Lessingia nana Willard Spence 1962-7-24 730 Butte 4 mi s Oroville (along alternate Rt. 40) Comment
  SBBG32474  Lessingia virgata J. T. Howell 1959-9-19 34612 Butte 5 mi W of Oroville 45 Comment
  UC1287454  Lessingia virgata Willard Spence 1962-7-24 731 Butte along alternate Rt. 40 4 mi s Oroville Comment
  UCD169079  Lessingia virgata Ramona Robison 2013-4-15 12 Butte Clay Pit State Vehicular Recreation Area, located two miles west of the town of Oroville. 41 Comment
  UCD159567  Leucanthemum maximum D. S. Park 2011-6-27 304 Butte East shore of Thermalito Afterbay. Growing on roadsides. Disturbed. 1999 Comment
  CHSC65643  Limnanthes alba subsp. alba Mark S. Cederborg 1995-4-12 19 Butte Fernandez Land Grant. In drainage on se side of Wilbur Rd ca. 1.9 mi s of Hwy 162, ca. 6 mi sw of Oroville. 44 Comment
  CHSC52406  Limnanthes douglasii Jose Romero 1983-4-20 17 Butte Oroville Wildlife Area. Jct. of Larkin and Timothy Rds., 4 mi SW of Oroville. 45 Comment
  UC1397268  Limnanthes floccosa subsp. californica R. Ornduff 1968-4-27 6885 Butte 1 mi w Oroville (on Hwy 70) Comment
  CHSC50688  Limosella acaulis Lowell Ahart 1990-4-23 6464 Butte About 1/2 mile east of Larkin Road, about 1 mile south of the Oroville Airport. 45 Comment
  UC1562434  Limosella acaulis Lowell Ahart 1990-4-23 6464 Butte dirt road about 1/2 mi e of Larkin Road about 1 mi s Oroville Airport 45 Comment
  UCD169097  Limosella aquatica Ramona Robison 2013-4-16 14 Butte Clay Pit State Vehicular Recreation Area, located in pools within Clay Pit SVRA. 41 Comment
  CDA4731  Linum bienne L. Ahart 2000-5-21 8375 Butte On the north margin of Table Mountain Boulevard, about 300 yards southeast of Garden Drive, about 1/10 mile northwest of the Thermalito Diversion cut, about 2 miles north of Oroville. Comment
  CHSC78155  Linum bienne Lowell Ahart 2000-5-21 8375 Butte On the north margin of Table Mountain Boulevard, about 300 yards southeast of Garden Drive, about 1/10 mile northwest of the Thermalito Diversion cut, about 2 mile north of Oroville. 67 Comment
  JEPS98565  Linum bienne Lowell Ahart 2000-5-21 8375 Butte 2 mi N of Oroville (N margin of Table Mountain Boulevard, 300 yds SE of Garden Drive, about 1/10 mi NW of the Thermalito Diversion cut) 67 Comment
  JEPS98709  Linum bienne Lowell Ahart 2000-5-21 8375 Butte 2 mi N of Oroville (N margin of Table Mountain Boulevard, 300 yds SE of Garden Drive, about 1/10 mi NW of the Thermalito Diversion cut) 67 Comment
  CHSC78547  Lipocarpha micrantha Lowell Ahart 2000-9-2 8679 Butte On the margins of a small pond, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. 42 Comment
  JEPS98310  Lipocarpha micrantha Lowell Ahart 2000-9-2 8679 Butte 4 air miles SW of Oroville (about 1/2 mi W of Pacific Heights Road); Oroville Wildlife Area 42 Comment
  CHSC50059  Lithophragma bolanderi Lowell Ahart 1990-3-28 6428 Butte Along the south edge of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CHSC52133  Lithophragma bolanderi Tyler Williams 1984-4-5 11 Butte On steep road bank, ca. 5 yd s of Pacific Heights Rd., 1.0 mi sw of its junction with Ophir Rd. 45 Comment
  CHSC108787  Logfia gallica L. P. Janeway 2011-4-26 10239 Butte Sacramento Valley. Oroville; in gravel parking area at east side of Feather River Ranger District office (875 Mitchell Ave.). 59 Comment
  CAS-BOT-BC283390  Lolium multiflorum John Thomas Howell 1961-9-22 36714 A Butte On bank of Feather River, Oroville 53 Comment
  CHSC30027  Lomatium caruifolium var. denticulatum L. Ahart 1980-5-4 2188 Butte Pasture field southwest of the intersection of Nelson Ave and 20th, Thermalito. 65 Comment
  CHSC32594  Lomatium dasycarpum subsp. tomentosum J. D. Jokerst; R. A. Schlising, B. Banchero 1981-3-22 1265 Butte Open grassland S of the summit of Campbell Hills. Comment
  UC1562369  Lotus scoparius Lowell Ahart 1990-5-21 6474 Butte 4.5 mi sw Oroville (0.25 mi s of the Feather River, about 0.4 mi w of Pacific Heights Road) 30 Comment
  UCD66036  Ludwigia hexapetala Robert McKee; Greg Woods 2006-8-2 06- 28 -LU Butte Feather River, east bank at Oroville Wildlife Area south of Thermolito. Access from DFG Wildlife Area levee road. 23 Comment
  CHSC66896  Ludwigia peploides subsp. montevidensis Vernon H. Oswald 1996-10-22 8300 Butte Northern Sacramento Valley. Oroville Wildlife Area on the NW side of the Feather River just upstream from the outlet of Thermalito Afterbay. Along the edge of the Feather River. 33 Comment
  CHSC78388  Ludwigia peploides subsp. montevidensis Lowell Ahart 2000-7-18 8601 Butte On the margins of a small pond, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. 42 Comment
  CHSC90029  Lupinus albifrons Keith Bunney 1991-4-21 2 Butte West side of Hwy 162, 2.9 mi ne of Oroville. 121 Comment
  SEINET5766838 Image available Lupinus albifrons subsp. eminens Lewis S. Rose 1931-1 s.n. Butte Oroville Comment
  CHSC90498  Lupinus bicolor Jose Romero 1983-4-20 12 Butte Site located on the Oroville Wildlife Area. Junction of Larkin and Timothy Rds., 4 mi. s.w. of Oroville. 45 Comment
  RSA0045622  Lupinus bicolor subsp. tridentatus Lowell A. Ahart 2012-4-17 17874 Butte Area where cobbles were removed for Oroville Dam, about 100 yards south of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. 35 Comment
  CHSC106867  Lupinus bicolor var. tridentatus Lowell Ahart 2011-5-1 17340 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
  CHSC108836  Lupinus bicolor var. tridentatus Lowell Ahart 2012-4-17 17874 Butte Bare areas where cobbles were removed for Oroville Dam, about 100 yards south of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. 35 Comment
  JEPS119589  Lupinus bicolor var. tridentatus Lowell Ahart 2012-4-17 17874 Butte About 100 yards south of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. Comment
  CHSC90024  Lupinus microcarpus Keith Bunney 1991-4-21 1 Butte In empty lot n side of Hwy 162, 1.6 mi e of Hwy 99. 76 Comment
  UCD108986  Lupinus nanus A. A. Heller 1913-3-9 10682 Butte hills two miles north of Oroville. 91 Comment
  UCD108989  Lupinus nanus A. A. Heller 1913-3-9 10685 Butte hills two miles north of Oroville. 91 Comment
  CHSC50064  Luzula macrantha Lowell Ahart 1990-3-19 6425 Butte Along the south edge of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CHSC43685  Lycopus americanus Vernon Oswald 1985-6-26 1864 Butte Oroville Wildlife Area on the e side of the outlet of Thermolito Afterbay. 42 Comment
  CHSC51222  Lycopus americanus Lowell Ahart 1984-8-19 4783 Butte North of the state borrow area, west of Pacific Heights Road, about 5 miles south-west of Oroville. 30 Comment
  CHSC62120  Lythrum hyssopifolia B. Castro 1987-5-28 125 Butte Ca 2 mi NW of Oroville via Hwy 70 on E side of Table Mtn Blvd, at SE end of curve in road, by seep just downslope from railroad embankment. 97 Comment
  CHSC112659  Lythrum portula Lowell Ahart 2013-10-16 19112 Butte Thermalito Afterbay, about 20 feet north of the base of the large rock levee, about 100 yards north of Larkin Road, about 4 miles (air) north of East Biggs. 49 Comment
  JEPS120718  Lythrum portula Lowell Ahart 2013-10-16 19112 Butte Thermalito Afterbay, about 20 feet north of the base of the large rock levee, about 100 yards north of Larkin Road, about 4 air miles north of East Biggs. Comment
  CHSC112044  Lythrum salicaria Lowell Ahart 2012-8-22 18422 Butte South edge of parking area at the restroom, end of road to the Larkin Road Boat Launch Area, about 1/4 mile west of Larkin Road, about 2 miles (air) southwest of the Oroville Airport. 28 Comment
  CHSC34017  Lythrum salicaria L. Ahart 1981-7-18 2938 Butte On the bottom of a deep drain ditch along the edge of the Pacific Heights Rd, ca. 1/8 mi w of Hwy 70, ca. 3 mi sw of Oroville. 35 Comment
  CHSC47442  Lythrum salicaria Lowell Ahart 1984-8-19 4782 Butte North of the state borrow area, west of Pacific Heights Road, about 5miles south-west of Oroville. 30 Comment
  CHSC78256  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
  CHSC78386  Lythrum salicaria Lowell Ahart 2000-7-18 8598 Butte On the margins of a small pond, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. 42 Comment
  CHSC96034  Lythrum salicaria L. P. Janeway 2006-7-19 8819 Butte Sacramento Valley. Waterfowl brood pond on shallow arm of Thermalito Afterbay, 225 m east of Wilbur Road, 2.1 km south of Hwy 162. 41 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
  JEPS17912 Image available Lythrum salicaria Rimo Bacigalupi with G. T. Robbins 1955-7-22 5441 Butte about 2.5 mi s of Oroville (at junction of road to Palermo, along Feather River); Feather River 48 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
  RSA0016015  Lythrum salicaria L. P. Janeway 2006-7-19 8819 Butte Sacramento Valley, Shallow arm of Thermalito Afterbay, 150 m east of Wilbur Road, 2.1 km south of Hwy 162. 41 Comment
  SD130472  Lythrum salicaria Lowell Ahart 1981-7-18 2938 Butte Along edge of Pacific Heights Road, ca. 1.8 mile west of Highway 70, ca. 3.0 miles southwest of Oroville. 35 Comment
  SEINET11268343  Lythrum salicaria Lowell Ahart 2000-7-18 8598 Butte About 1/2 miles west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville.; 0 43 Comment
  SEINET6629282 Image available Lythrum salicaria Lowell Ahart 1984-1 4782 Butte W of Pacific Heights Road, ca. 5 miles SW of Oroville 40 Comment
  UC1229853 Image available Lythrum salicaria Rimo Bacigalupi with G. T. Robbins 1955-7-22 5441 Butte about 2.5 mi s of Oroville (at junction of road to Palermo, along edge of Feather River); Feather River 48 Comment
  CHSC106886  Matricaria discoidea Lowell Ahart 2011-5-1 17334 Butte North side of the intersection of Georgia Pacific Way and Feather River Blvd, about 100 yards east of Highway 70, about 1 mile south of Oroville. 42 Comment
  CHSC108775  Medicago praecox L. P. Janeway 2011-4-26 10240 Butte Sacramento Valley. Oroville; in gravel parking area at east side of Feather River Ranger District office (875 Mitchell Ave.). 59 Comment
  CHSC80658  Mentha pulegium Lowell Ahart 2001-6-1 8746 Butte On the margin of the Thermalito Afterbay, on the south side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 42 Comment
  CHSC96038  Mentha pulegium L. P. Janeway 2006-7-19 8818 Butte Sacramento Valley. Waterfowl brood pond on shallow arm of Thermalito Afterbay, 225 m east of Wilbur Road, 2.1 km south of Hwy 162. 41 Comment
  JEPS102335  Mentha pulegium Lowell Ahart 2001-6-1 8746 Butte 5 air miles SW of Oroville (S side of access road to boat ramp at margin of the Thermalito Afterbay, W of Larkin Rd, 1 1/4 mi S of Oroville Airport) 42 Comment
  RSA724861  Mentha pulegium L. P. Janeway 2006-7-19 8818 Butte Waterfowl brood pond on shallow arm of Thermalito Afterbay, 225 m east of Wilbur Road, 2.1 km south of Hwy. 162. 41 Comment
  CHSC78519  Mentha spicata Lowell Ahart 2000-8-30 8675 Butte Margins of a large pond, about 100 yards south of the Feather River, east 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
  CDA5706  Mentha spicata var. spicata L. Ahart 2000-8-3 8675 Butte About 100 yards south of the Feather River, east 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. Comment
  CAS-BOT-BC348319  Micropus californicus Lowell Ahart 1980-5-4 2168 Butte Thermalito 65 Comment
  CAS-BOT-BC348697  Microseris acuminata Lowell Ahart 1980-5-4 2172 Butte Thermalito 65 Comment
  CAS-BOT-BC348703  Microseris acuminata John Thomas Howell; Gordon H. True 1967-5-7 42172 Butte Northwest outskirts of Oroville north of the Feather River Comment
  CHSC47502  Mimetanthe pilosa Lowell Ahart 1984-8-19 4780 Butte Growing north of the state borrow area, west of Pacific Heights Road, about 5 miles south-west of oroville. 30 Comment
  UC1093972  Mimulus aurantiacus var. grandiflorus Herbert L. Mason 1941-4-6 12421 Butte 2 mi n Oroville (n side of river); Feather River Comment
  GH367253  Mimulus glaucescens F. W. Pennell & A. A. Heller 1940-6-5 25686 Unknown Route 24, Along Feather River, above Oroville in Lassen Nat. Forest Comment
  JEPS104638  Mimulus guttatus Lowell Ahart 2003-7-23 10438 Butte Around the margins of ponds, Oroville Wildlife Area, ca 1/4 mi w of Pacific Heights Rd, ca 5 mi (air) sw of Oroville. 26 Comment
  UC1012165  Mimulus guttatus F. W. Pennell and H. L. Mason 1940-6-5 25681 a Butte 2 mi above Oroville (Route 24); Feather River 609 Comment
  CAS-BOT-BC174592  Minuartia californica John Thomas Howell; Gordon H. True 1967-5-7 42180 Butte Northwest outskirts of Oroville north of the Feather River Comment
  CHSC47449  Mollugo verticillata Lowell Ahart 1984-8-19 4787 Butte Growing on sand in an area where gravel is removed, north of the state borrow area, west of Pacific Heights Road, about 5 miles south-west of Oroville. 36 Comment
  CHSC56080  Montia fontana subsp. amporitana L. P. Janeway 1987-4-14 2003 Butte Thermalito Forebay State Park, Oroville. In the lawn. 70 Comment
  CDA43070  Morus alba L. P. Janeway 2011-5-9 10252 Butte Sacramento Valley; South side Feather River just east of Bedrock Park, Oroville; about 10-15 m back from the edge of the water and about 1 m higher. Comment
  CHSC108765  Morus alba L. P. Janeway 2011-5-9 10252 Butte Sacramento Valley. South side Feather River just east of Bedrock Park, Oroville; about 10-15 m back from the edge of the water. 42 Comment
  JEPS118632  Morus alba L. P. Janeway 2011-5-9 10252 Butte Sacramento Valley. South side Feather River just east of Bedrock Park, Oroville; about 10-15 m back from the edge of the water and about 1 m higher. Comment
  CAS-BOT-BC275343  Muhlenbergia mexicana John Thomas Howell 1961-9-22 36716 Butte Bank of Feather River 53 Comment
  CAS-BOT-BC275344  Muhlenbergia mexicana John Thomas Howell 1961-9-22 36716 Butte Bank of Feather River, Oroville 53 Comment
  CAS-BOT-BC83265  Myosurus minimus Lowell Ahart 1980-5-4 2180 Butte Thermalito. 65 Comment
  CHSC45423  Myosurus minimus Lowell Ahart 1980-5-4 2180 Butte On the sides of a small wash in a pasture, south-west of the intersection of Nelson Avenue and 20th. Street in Thermalito. 60 Comment
  CHSC43681  Myriophyllum aquaticum Vernon Oswald 1984-3-14 1094 Butte Oroville Wildlife Area, near the w drive ca. 2 mi s of the 10th Street entrance off of Calif. Hwy 162. Comment
  CHSC112729  Myriophyllum spicatum Lowell Ahart 2013-10-16 19113 Butte Thermalito Afterbay, about 20 feet north of the base of the large rock levee, about 100 yards north of Larkin Road, about 4 miles (air) north of East Biggs. 49 Comment
  JEPS120717  Myriophyllum spicatum Lowell Ahart 2013-10-16 19113 Butte Thermalito Afterbay, about 20 feet north of the base of the large rock levee, about 100 yards north of Larkin Road, about 4 air miles north of East Biggs. Comment
  CHSC112730  Najas guadalupensis subsp. guadalupensis Lowell Ahart 2013-10-16 19116 Butte Thermalito Afterbay, about 20 feet north of the base of the large rock levee, about 100 yards north of Larkin Road, about 4 miles (air) north of East Biggs. 49 Comment
  JEPS120716  Najas guadalupensis subsp. guadalupensis Lowell Ahart 2013-10-16 19116 Butte Thermalito After Bay, about 20 feet north of the base of the large rock levee, about 100 yards north of Larkin Road, about 4 air miles north of East Biggs. Comment
  UC1719865  Navarretia heterandra David Fruchter 1979-9-18 177 Butte Oroville Airport Comment
  CHSC112882  Navarretia leucocephala subsp. leucocephala Robin Carter; Sabrina Bell 2011-6-1 Butte Sacramento Valley. Ca 3 air mi E of Hwy 99, off SE corner of Thermalito Afterbay ca 0.5 mi NE of the Afterbay outlet and ca 400 ft NW of Larkin Road. 42 Comment
  CHSC66962  Navarretia leucocephala subsp. leucocephala James D. Jokerst; Chuck Ricard 1993-4-12 3948 Butte Vernal pool preserve S and adjacent to Table Mtn. Municipal Golf Course, W and adjacent to Oroville Municipal Airport. 53 Comment
  CHSC88962  Navarretia leucocephala subsp. leucocephala Christine Hantelman 2000-4-8 70 Butte On vernal pool preserve between Oroville airport runway and Table Mountain golf course. On margin of pools. 60 Comment
  CHSC91113  Navarretia leucocephala subsp. leucocephala Lowell Ahart 2005-5-28 11818 Butte Pasture, on the south side of Nelson Avenue, east of the bridge across the Thermalito Forebay, Thermalito. 67 Comment
  JEPS107890  Navarretia leucocephala subsp. leucocephala Lowell Ahart 2005-5-28 11818 Butte Pasture, on the south side of Nelson Avenue, east of the bridge across the Thermalito Forebay, Thermalito 67 Comment
  RSA717291  Navarretia leucocephala subsp. leucocephala L. Ahart 2005-5-28 11818 Butte On the south side of Nelson Avenue, east of the bridge across the Thermalito Forebay, Thermalito 67 Comment
  UCD169102  Navarretia prostrata Ramona Robison 2013-4-15 23 Butte Clay Pit State Vehicular Recreation Area. In disturbed vernal pool located in main riding area. 41 Comment
  CDA40119  Navarretia pubescens L. Ahart 2005-5-28 11819 Butte South side of Nelson Avenue, east of the bridge across the Thermalito Forebay, Thermalito. Comment
  CHSC91119  Navarretia pubescens Lowell Ahart 2005-5-28 11819 Butte Pasture, on the south side of Nelson Avenue, east of the bridge across the Thermalito Forebay, Thermalito. 67 Comment
  JEPS107888  Navarretia pubescens Lowell Ahart 2005-5-28 11819 Butte Pasture, on the south side of Nelson Avenue, east of the bridge across the Thermalito Forebay, Thermalito 67 Comment
  RSA717288  Navarretia pubescens L. Ahart 2005-5-28 11819 Butte On the south side of Nelson Avenue, east of the bridge across the Thermalito Forebay, Thermalito 67 Comment
  CDA40108  Navarretia tagetina L. Ahart 2005-5-28 11817 Butte South side of Nelson Avenue, east of the bridge across the Thermalito Forebay, Thermalito. Comment
  CHSC91120  Navarretia tagetina Lowell Ahart 2005-5-28 11817 Butte Pasture, on the south side of Nelson Avenue, east of the bridge across the Thermalito Forebay, Thermalito. 67 Comment
  JEPS107889  Navarretia tagetina Lowell Ahart 2005-5-28 11817 Butte Pasture, on the south side of Nelson Avenue, east of the bridge across the Thermalito Forebay, Thermalito 67 Comment
  RSA717292  Navarretia tagetina L. Ahart 2005-5-28 11817 Butte On the south side of Nelson Avenue, east of the bridge across the Thermalito Forebay, Thermalito 67 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
  CHSC112924  Nicotiana acuminata var. multiflora B. Castro; R. Carter 2010-7-13 1823 Butte Sacramento Valley. S side of Thermalito Power Canal ca 0.3 mi E of Hwy 70, ca 0.25 mi W of Table Mtn Blvd and ca 0.25 mi S of Garden Drive , on the north end of Oroville. 70 Comment
  CAS-BOT-BC231529  Nicotiana glauca Lowell Ahart 1981-7-18 2942 Butte Burrow area 4.5 miles southwest of Oroville 35 Comment
  CHSC34016  Nicotiana glauca L. Ahart 1981-7-18 2942 Butte In the burrow area ca. 4.5 mi sw of Oroville. Along the dirt rd near the base of the levee. 35 Comment
  CHSC47852  Oxalis bowiei Vernon H. Oswald 1989-11-10 4027 Butte Table Mtn Blvd, 0.7 mi nw of Garden Drive, Thermalito. Along the edge of road at the bottom of railroad right of way. 91 Comment
  CHSC84127  Oxalis laxa Lowell Ahart 2003-4-30 10119 Butte Between dredge tailings, where there is a brake in the levee, about 100 yards south of the Feather River, on the west side of the dirt road in the Oroville Wildlife Area, about 3/5 of a mile west of Pacific Heights Road, about 5 1/2 miles (air) southwest of Oroville. 39 Comment
  JEPS104283  Oxalis laxa Lowell Ahart 2003-4-30 10119 Butte Between dredge tailings, where there is a brake in the levee, ca 100 yd south of the Feather River, on the w side of the dirt road in the Oroville Wildlife Area, ca 3/5 of a mi w of Pacific Heights Rd, ca 5 1/2 mi (air) sw of Oroville. 39 Comment
  JEPS104471  Oxalis laxa Lowell Ahart 2003-4-30 10119 Butte Between dredge tailings, where there is a brake in the levee, ca 100 yd south of the Feather River, on the w side of the dirt road in the Oroville Wildlife Area, ca 3/5 of a mi w of Pacific Heights Rd, ca 5 1/2 mi (air) sw of Oroville. 39 Comment
  SEINET13711296  Oxalis laxa Lowell William Ahart, Lowell William Ahart 2003-1 10119 Butte 5.5 Mi. SW of Oroville, S of Feather River, Oroville Wildlife Area (39 Deg 27'17.8"N, 121 Deg 36'48"W) 131 Ft. 40 Comment
  CHSC58289  Panicum capillare Lowell Ahart 1992-5-6 6749 Butte Along the west side of Lone Tree Road, about 1/4 mile south of the intersection of Powerhouse Hill Road and Lone Tree Road, about 4 miles south of Oroville. 60 Comment
  CAS-BOT-BC253895  Panicum rigidulum John Thomas Howell 1961-9-22 36714 Butte Bank of Feather River, Oroville 53 Comment
  CHSC112934  Parentucellia viscosa B. Castro 2012-6-21 1930 Butte Sacramento Valley. CA 3 air mi E of Hyw 99, off SE corner of Thermalio Afterbay ca 0.5 mi NE of the Afterbay outlet and ca 400 ft NW of Larkin Road 42 Comment
  CHSC87212  Paronychia ahartii Lowell Ahart 2004-4-4 10709 Butte About 20 yards north of the faint old fence ridge, about 175 yards east of Wilber Road, east-northeast of the high hill crossed by Wilber Road, cattle pasture, about 3 miles (air) west of Thermalito. 48 Comment
  JEPS105999  Paronychia ahartii Lowell Ahart 2004-4-4 10709 Butte About 20 yards north of the faint old fence ridge, about 175 yards east of Wilber Road, east-northeast of the high hill crossed by Wilber Road, cattle pasture, about 3 miles (air) west of Thermalito. Comment
  CHSC108833  Pectocarya penicillata Lowell Ahart 2012-4-17 17881 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
  CHSC47378  Pectocarya penicillata Lowell Ahart 1989-11-12 6401 Butte On the bottom of a wash, in the borrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  CHSC50021  Pectocarya penicillata Lowell Ahart 1990-3-28 6426 Butte In the borrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  CHSC61206  Pectocarya penicillata Lowell Ahart 1993-4-8 6928 Butte Oroville Wildlife Area, south of the Feather River, about 3 1/2 miles (air) south of Thermalito. 36 Comment
  JEPS119580  Pectocarya penicillata Lowell Ahart 2012-4-17 17881 Butte About 200 yards southeast of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. Comment
  JEPS87510  Pectocarya penicillata Lowell Ahart 1993-4-8 6928 Butte 3.5 air mi s Thermalito (s of the Feather Rv, Oroville Wildlife Area); Oroville Wildlife Area 36 Comment
  UC1609216  Pectocarya penicillata Lowell Ahart 1993-4-8 6928 Butte 3.5 air mi s Thermalito (s of the Feather Rv, Oroville Wildlife Area); Oroville Wildlife Area 36 Comment
  CHSC47471  Persicaria hydropiper Lowell Ahart 1989-11-12 6402 Butte On the bottom of a shallow wash, in the borrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  CHSC66897  Persicaria hydropiper Vernon H. Oswald 1996-10-22 8301 Butte Oroville Wildlife Area on the NW side of the Feather River just upstream from the outlet of Thermalito Afterbay. 33 Comment
  CHSC66898  Persicaria hydropiperoides Vernon H. Oswald 1996-10-22 8302 Butte Northern Sacramento Valley. Oroville Wildlife Area on the NW side of the Feather River just upstream from the outlet of Thermalito Afterbay. 33 Comment
  CHSC50050  Phacelia egena Lowell Ahart 1990-4-8 6438 Butte On the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CHSC112910  Phalaris aquatica B. Castro; Sabrina Bell 2012-5-23 1923 Butte Sacramento Valley. Ca 1.6 air mi E of Hwy 99 and 1 mi N of Hwy 162 off NE edge of Thermalito Afterbay, 0.5 mi WNW old 'Oroville Jcn' on maps, now jcn of Tres Vias and Wilbur Roads. 42 Comment
  CHSC115274  Philadelphus lewisii Lowell Ahart 2015-5-5 20144 Butte On the south side of the gravel road, Oroville Wildlife Area, about one mile south of the Headquarters, about one mile south of Thermalito.Raparian Woodland (destroyed). 39 Comment
  JEPS123884  Philadelphus lewisii Lowell Ahart 2015-5-5 20144 Butte Oroville Wildlife Area, about one mile south of the Headquarters, about one mile south of Thermalito. Comment
  RSA133203  Phoradendron macrophyllum Del Wiens 1960-6-15 2729 Butte Several miles S of Oroville, on Hwy 40 alternate. 122 Comment
  CDA43410  Phytolacca americana D. G. Kelch 2012-9-19 12 .355 Butte Oroville, immediately west of sewage treatment plant. Comment
  CHSC50635  Pilularia americana Lowell Ahart 1990-4-23 6465 Butte About 1/2 mile east of Larkin Road, about 1 mile south of the Oroville Airport. 45 Comment
  UC1562400  Pilularia americana Lowell Ahart 1990-4-23 6465 Butte ca. 1 mi s Oroville Airport (ca. 1/2 mi e of Larkin Rd.) 45 Comment
  A357216  Pinus sabiniana A. A. Heller 1913-3-9 10690 Unknown Hills two miles north of Oroville Comment
  CAS-BOT-BC72806  Pinus sabiniana A. A. Heller 1913-3-9 10690 Butte Hills two miles north of Oroville. Comment
  GH357226  Pinus sabiniana A. A. Heller 1913-3-9 10690 Unknown Hills two miles north of Oroville Comment
  NY62742  Pinus sabiniana A. A. Heller 1913-4-7 10690 Butte Hills 2 miles north of Oroville Comment
  UC183378  Pinus sabiniana A. A. Heller 1913-3-9 10690 Butte 2 mi n Oroville Comment
  CHSC114949  Plagiobothrys Lowell Ahart 2015-3-10 19944 Butte 60 feet north of the fence, north of the parking area, north of Larkin Road, about 6 miles (air) southwest of Oroville. 44 Comment
  CHSC115000  Plagiobothrys Lowell Ahart 2015-3-2 19943 Butte Along a small path, low area, 60 feet north of the fence, north of the parking area, north of Larkin Road, about 6 miles (air) southwest of Oroville. 44 Comment
  CHSC115001  Plagiobothrys Lowell Ahart 2015-3-2 19943 Butte Along a small path, low area, 60 feet north of the fence, north of the parking area, north of Larkin Road, about 6 miles (air) southwest of Oroville. 44 Comment
  CHSC116644  Plagiobothrys Lowell Ahart 2016-4-14 20742 Butte Along a small path, low area, 60 feet north of the fence, north of the parking area, north of Larkin Road, about 6 miles (air) southwest of Oroville. 44 Comment
  JEPS124178  Plagiobothrys Lowell Ahart 2015-3-10 19944 Butte North of Larkin Road, about 6 miles (air) southwest of Oroville. Comment
  JEPS124179  Plagiobothrys Lowell Ahart 2015-3-2 19943 Butte North of Larkin Road, about 6 miles (air) southwest of Oroville. Comment
  JEPS127089  Plagiobothrys Lowell Ahart 2016-4-14 20742 Butte North of Larkin Road, about 6 miles (air) southwest of Oroville. Comment
  CHSC90576  Plagiobothrys austiniae Jose Romero 1983-4-20 3 Butte Site on the Oroville Wildlife Area. Junction of Larkin and Timothy Roads, 4 mi southwest of Oroville. 45 Comment
  UC726654  Plagiobothrys fulvus A. A. Heller 1938-4-23 15044 Butte on Feather River Hwy 1 1/2 mi from Oroville Comment
  CHSC35066  Plagiobothrys fulvus var. campestris R. A. Schlising 1981-4-6 4013 Butte S of Oroville along Hwy 170; S of Baggatt Road, grassland along highway. Comment
  CHSC29279  Plagiobothrys glyptocarpus R. A. Schlising 1980-4-7 3552 Butte North of Oroville, at Thermalito Forebay Recreation Area; seep in hillside. 91 Comment
  CHSC35062  Plagiobothrys greenei R. A. Schlising 1981-4-6 4016 Butte Along Hwy 70 S of Oroville, 0.2 mi S of jct with Cox Lane; roadside. Comment
  CHSC46781  Plagiobothrys greenei Lowell Ahart 1980-5-4 2175 Butte On the bottom of a small vernal pool and along small swales in a pasture, south-west of the intersection of Nelson Avenue and 20th. Street in Thermalito. 60 Comment
  CHSC87225  Plagiobothrys greenei Lowell Ahart 2004-4-4 10713 Butte 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
  JEPS105995  Plagiobothrys greenei Lowell Ahart 2004-4-4 10713 Butte 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
  SBBG119952  Plagiobothrys greenei L. Ahart 2004-4-4 10713 Butte ca. 250 yards E of Wilber Rd, NE of the high hill crossed by Wilber Rd, ca. 3 air mi W of Thermalito 48 Comment
  CHSC87195  Plagiobothrys scriptus Lowell Ahart 2004-4-4 10715 Butte Bottom of a vernal pool, about 250 yards east of Wilber Road, northeast of the high hill crossed by Wilber Road, pasture, about 3 miles (air) west of Thermalito. 48 Comment
  JEPS106005  Plagiobothrys scriptus Lowell Ahart 2004-4-4 10715 Butte Bottom of a vernal pool, about 250 yards east of Wilber Road, northeast of the high hill crossed by Wilber Road, pasture, about 3 miles (air) west of Thermalito 48 Comment
  CHSC35067  Plagiobothrys shastensis R. A. Schlising 1981-4-6 4012 Butte S of Oroville along Hwy 70, S of Baggatt Road, along highway. Comment
  CHSC35068  Plagiobothrys shastensis R. A. Schlising 1981-4-6 4018 Butte W of Oroville and SW of Thermalito, at S border of Oroville Municipal Airport; off Larkin Road, 1.2 mi S of jct with Hwy 162. Comment
  CHSC84126  Plagiobothrys shastensis Lowell Ahart 2003-5-9 10124 Butte North of the Larkin Road Boat Ramp, on the north side of the access road to the boat ramp at the Thermalito Afterbay, about 300 yards west of Larkin road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 38 Comment
  JEPS104013  Plagiobothrys shastensis Lowell Ahart 2003-5-9 10124 Butte North of the Larkin Rd Boat Ramp, on the n side of the access road to the boat ramp at the Thermalito Afterbay, ca 300 yd w of Larkin road, ca 1 1/4 mi south of the Oroville Airport, ca 5 mi (air) sw of Oroville. 38 Comment
  CHSC112886  Plagiobothrys stipitatus var. micranthus Robin Carter; Sabrina Bell 2011-6-1 Butte Sacramento Valley. Ca 3 air mi E of Hwy 99, off SE corner of Thermalito Afterbay ca 0.5 mi NE of the Afterbay outlet and ca 170 ft NW of Larkin Road. 42 Comment
  CHSC115203  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2015-5-5 20137 Butte Located on the bottom of a large vernal pool, about 30 yards north of Larkin Road, about 400 yards south of Larkin Road Boat Launch Area, near the Themalito Afterbay, about 1 mile southwest of Oroville Airport, about 6 miles (air) southwest of Oroville. Valley Grassland. 42 Comment
  CHSC43551  Plagiobothrys stipitatus var. micranthus Lowell Ahart 1977-3-29 1234 Butte In the borrow area about 5 miles south-west of Oroville. 30 Comment
  CHSC46774  Plagiobothrys stipitatus var. micranthus Lowell Ahart 1980-5-4 2176 Butte On the bottom of small vernal pools and along small washes, in a pasture, south-west of the intersection of Nelson Avenue and 20th Street in Thermalito. 60 Comment
  CHSC77981  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2000-5-13 8352 Butte In the mudhole of a poor dirt road, 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
  CHSC78130  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2000-5-18 8373 Butte On the bottom of the Clay Pit, east of the Cottonwood trees, about 1/8 mile west of the Oroville Airport and Larkin Road, about 4 1/2 miles (air) southwest of Oroville. 36 Comment
  JEPS123887  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2015-5-5 20137 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
  JEPS98559  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2000-5-18 8373 Butte 4 1/2 air miles SW of Oroville (on bottom of the Clay Pit, E of the Cottonwood trees, about 1/8 mi W of Oroville Airport and Larkin Road) 36 Comment
  JEPS98580  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2000-5-13 8352 Butte 5 air miles SW of Oroville (S side of the access road to the boat ramp at the Thermalito Afterbay, W of Larkin Road, 1 1/4 mi S of the Oroville Airport) 42 Comment
  RSA0114655  Plagiobothrys stipitatus var. micranthus Lowell A. Ahart 2015-5-5 20137 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
  SEINET12765222  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2000-5-18 8373 Butte On the bottom of the Clay Pit, east of the Cottonwood trees, about 1/8 mile west of the Oroville Airport and Larkin Road, about 4 1/2 miles (air) southwest of Oroville.; 0 37 Comment
  CDA42767  Plantago coronopus L. Ahart 2011-5-1 17343 Butte North side of the intersection of Georgia Pacific Way and Feather River Blvd, about 100 yards east of Highway 70, about 1 mile south of Oroville. Comment
  CHSC106870  Plantago coronopus Lowell Ahart 2011-5-1 17343 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
  CHSC108776  Plantago coronopus L. P. Janeway 2011-4-26 10238 Butte Sacramento Valley. Oroville; in gravel parking area at east side of Feather River Ranger District office (875 Mitchell Ave.). 59 Comment
  CHSC45342  Plantago coronopus Vernon Oswald 1985-4-11 1706 Butte Beside a gravel road at the shooting area in the Oroville Wildlife Area. Comment
  CHSC77990  Plantago coronopus Lowell Ahart 2000-5-13 8347 Butte On the edge of a poor dirt road, 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
  JEPS118250  Plantago coronopus Lowell Ahart 2011-5-1 17343 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
  JEPS98424  Plantago coronopus Lowell Ahart 2000-5-13 8347 Butte 5 air mi SW of Oroville (edge of a poor dirt rd, S side of the access rd to boat ramp at the Thermolito Afterbay, W of Larkin Road, 1 1/4 mi S of the Oroville Airport) 42 Comment
  CHSC83950  Plantago elongata Lowell Ahart 2003-3-31 10027 Butte On the south side of the access road to the boat ramp at the Thermalito Afterbay, about 300 yards west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 43 Comment
  JEPS104322  Plantago elongata Lowell Ahart 2003-3-31 10027 Butte On the south side of the access road to the boat ramp at the Thermalito Afterbay, ca 300 yd w of Larkin Rd, ca 1 1/4 mi south of the Oroville Airport, ca 5 mi (air) sw of Oroville. 43 Comment
  SEINET13710565  Plantago elongata Lowell William Ahart, Lowell William Ahart 2003-1 10127 Butte 1.25 Mi. S or Oroville Airport, 5 Mi. SW of Oroville (39 Deg 28'03.6"N, 121 Deg 37'52.6"W) 142 Ft. 43 Comment
  CHSC77991  Plantago virginica Lowell Ahart 2000-5-13 8348 Butte On the margin of the Thermalito Afterbay, on the south side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 42 Comment
  CHSC80670  Plantago virginica Lowell Ahart 2001-6-1 8745 Butte On the margin of 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
  JEPS102499  Plantago virginica Lowell Ahart 2001-6-1 8745 Butte On the margin of 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) SW of Oroville. 42 Comment
  JEPS98311  Plantago virginica Lowell Ahart 2000-5-13 8348 Butte 5 air miles SW of Oroville (margin of Thermalito Afterbay, S side of access road to boat ramp, W of Larkin Road, 1 1/4 mi S of Oroville Airport) 42 Comment
  JEPS98313  Plantago virginica Lowell Ahart 2000-5-13 8348 Butte 5 air miles SW of Oroville (margin of Thermalito Afterbay, S side of access road to boat ramp, W of Larkin Road, 1 1/4 mi S of Oroville Airport) 42 Comment
  CHSC50063  Plectritis ciliosa Lowell Ahart 1990-4-8 6447 Butte On the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CHSC50706  Poa secunda subsp. secunda Lowell Ahart 1990-4-28 6471 Butte On the banks on the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 39 Comment
  UC1562449  Poa secunda subsp. secunda Lowell Ahart 1990-4-28 6471 Butte ca 3 1/2 mi sw Oroville (s side of Pacific Heights Rd) 39 Comment
  CHSC67521  Pogogyne zizyphoroides James D. Jokerst; Chuck Ricard 1993-4-12 3949 Butte Vernal pool preserve S and adjacent to Table Mtn. Municipal Golf Course, W and adjacent to Oroville Municipal Airport. 53 Comment
  CHSC106868  Polycarpon tetraphyllum Lowell Ahart 2011-5-1 17338 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
  CHSC49836  Polycarpon tetraphyllum Vernon H. Oswald 1990-4-2 4142 Butte Bedrock Park on the e side of the Feather River in Oroville. Margin of a slough. 42 Comment
  JEPS118324  Polycarpon tetraphyllum Lowell Ahart 2011-5-1 17338 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
  CHSC46204  Polygonum aviculare L. P. Janeway 1986-10-19 1940 Butte Wet area along small creek feeding Thermalito Forebay from the NE. Between bay and hwy 99 and just N of the State Park picnic grounds. 67 Comment
  CHSC63715  Polygonum californicum Lowell Ahart 1994-10-8 7553 Butte Open low rounded mounds, east of the large pond, on the south side of the Shooting Area, about 1 1/2 miles south of the Oroville Airport, south-west of Oroville. 45 Comment
  CHSC50015  Polypodium calirhiza Lowell Ahart 1990-3-19 6419 Butte On the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. Comment
  CHSC50392  Polypogon australis Vernon Oswald 1990-6-2 4279 Butte Oroville Wildlife Area on the northwest side of the Feather River, just upstream from the outlet of Thermalito Afterbay. On the bank of the river. 33 Comment
  CHSC50016  Polystichum imbricans subsp. imbricans Lowell Ahart 1990-3-19 6418 Butte On the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  A382278  Populus fremontii A. A. Heller 1913-4-4 10693 Unknown Levee at Oroville Comment
  CAS-BOT-BC102493  Populus fremontii A. A. Heller 1913-4-4 10693 Butte Levee at Oroville Comment
  GH382279  Populus fremontii A. A. Heller 1913-4-4 10693 Unknown Levee at Oroville Comment
  CHSC108758  Populus fremontii subsp. fremontii L. P. Janeway 2011-5-9 10254 Butte Sacramento Valley. South side Feather River just east of Bedrock Park, Oroville; about 10-15 m back from the edge of the water. 42 Comment
  CHSC112650  Potamogeton Lowell Ahart 2013-10-16 19115 Butte Thermalito Afterbay, about 20 feet north of the base of the large rock levee, about 100 yards north of Larkin Road, about 4 miles (air) north of East Biggs. 49 Comment
  JEPS120719  Potamogeton Lowell Ahart 2013-10-16 19115 Butte Thermalito Afterbay, about 20 feet north of the base of the large rock levee, about 100 yards north of Larkin Road, about 4 air miles north of East Biggs. Comment
  CHSC55813  Potamogeton diversifolius Vernon H. Oswald; Lowell Ahart 1991-8-28 4856 Butte Impoundment just south of the Clay Pit Area of the Oroville Wildlife Area, on the east side of Larkin Rd, ca. 2 miles south of Hwy 162, Thermalito. In a pond. 39 Comment
  UC1586506  Potamogeton diversifolius Vernon H. Oswald and Lowell Ahart 1991-8-28 4856 Butte just s of the Clay pit area (on the e side of Larking Rd, 2 mi s of Hwy 162, Thermalito, Fernandez Land Grant); Oroville Wildlife Area 39 Comment
  CHSC112658  Potamogeton nodosus Lowell Ahart 2013-10-16 19114 Butte Thermalito Afterbay, about 20 feet north of the base of the large rock levee, about 100 yards north of Larkin Road, about 4 miles (air) north of East Biggs. 49 Comment
  CHSC1066  Proboscidea louisianica E. Walker 1932-9-1 Butte Oroville-Marysville road. Comment
  CAS-BOT-BC154609  Prunus subcordata Lowell Ahart 1990-3-19 6420 Butte On the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville 33 Comment
  CHSC30026  Pseudognaphalium stramineum L. Ahart 1980-5-4 2184 Butte Pasture, southwest of the intersection of Nelson Ave and 20th, Thermalito. 65 Comment
  CHSC50646  Pseudognaphalium stramineum Lowell Ahart 1990-4-28 6467 Butte In the borrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  CHSC77980  Pseudognaphalium stramineum Lowell Ahart 2000-5-13 8346 Butte On the margin of the Thermalito Afterbay, on the south side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 42 Comment
  JEPS98581  Pseudognaphalium stramineum Lowell Ahart 2000-5-13 8346 Butte 5 air miles SW of Oroville Oroville 42 Comment
  CAS-BOT-BC361741  Psilocarphus brevissimus var. brevissimus Lowell Ahart 1980-5-4 2160 Butte Thermalito 65 Comment
  CHSC115352  Pyracantha koidzumii Lowell Ahart 2015-1-27 19929 Butte On the northwest side of Larkin Road, about 200 yards south of Larkin Road Boat Launch Area, about 1 mile southwest of the Oroville Airport, about 6 miles (air) southwest of Oroville. 35 Comment
  CHSC94920  Pyracantha koidzumii L. P. Janeway 2006-10-4 8904 Butte Sacramento Valley. Oroville Wildlife Area; 180 m east of Feather River, on west bank of narrow slough; 1.4 km south-southeast of the Thermalito Afterbay outlet. 32 Comment
  JEPS113317  Pyracantha koidzumii L. P. Janeway 2006-10-4 8904 Butte Sacramento Valley. Oroville Wildlife Area; 150 m east of Feather River, on west bank of narrow slough; 1.7 km south-southeast of the Thermalito Afterbay outlet. Comment
  CAS-BOT-BC104152  Quercus X morehus John Thomas Howell 1961-9-22 36747 Butte Feather River Highway 3 miles from Oroville Comment
  A344383  Quercus douglasii A. A. Heller 1913-3-9 10688 Unknown Hills two miles north of Oroville Comment
  CAS-BOT-BC86633  Quercus douglasii A. A. Heller 1913-3-9 10688 Butte Hills two miles N of Oroville Comment
  GH344337  Quercus douglasii A. A. Heller 1913-3-9 10688 Unknown Hills two miles north of Oroville Comment
  UC176364  Quercus douglasii A. A. Heller 1913-3-9 10688 Butte 2 mi n Oroville Comment
  CDA19814  Quercus lobata P. Akers 2002-5-5 s.n. Butte Northern California; Pacific Heights Rd, Oroville. 36 Comment
  UCD46845  Quercus lobata P. Akers 2002-5-5 s.n. Butte Pacific Heights Rd, Oroville, near river. 36 Comment
  A343609  Quercus wislizeni A. A. Heller 1913-3-9 10689 Unknown Hills two miles north of Oroville Comment
  CAS-BOT-BC104690  Quercus wislizeni A. A. Heller 1913-3-2 10689 Butte Hills two miles N of Oroville Comment
  GH343724  Quercus wislizeni A. A. Heller 1913-3-9 10689 Unknown Hills two miles north of Oroville Comment
  UC176384  Quercus wislizeni A. A. Heller 1913-3-9 10689 Butte 2 mi n Oroville Comment
  CHSC115288  Ranunculus bonariensis var. trisepalus Lowell Ahart 2015-5-5 20138 Butte On the bottom of a large vernal pool, 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. 42 Comment
  JEPS123888  Ranunculus bonariensis var. trisepalus Lowell Ahart 2015-5-5 20138 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
  RSA0114656  Ranunculus bonariensis var. trisepalus Lowell A. Ahart 2015-5-5 20138 Butte About 30 yards north of Larkin Road, about 400 yards south of Larkin Road Boat Launch Area, near the Thermalito Afterbay, about 1 mile southwest of the Oroville Airport, about 6 miles (air) southwest of Oroville. 43 Comment
  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
  CHSC50056  Ranunculus hebecarpus Lowell Ahart 1990-3-19 6421 Butte At the base of banks along the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  JEPS124188  Ranunculus hebecarpus Lowell Ahart 2015-3-24 19963 Butte About 3 1/2 miles (air) southwest of Oroville. Comment
  CHSC115202  Ranunculus pusillus Lowell Ahart 2015-5-5 20139 Butte Located on the bottom of a large vernal pool, about 30 yards north of Larkin Road, about 400 yards south of Larkin Road Boat Launch Area, near the Themalito Afterbay, about 1 mile southwest of Oroville Airport, about 6 miles (air) southwest of Oroville. Valley Grassland. 42 Comment
  CHSC77994  Ranunculus pusillus Lowell Ahart 2000-5-13 8356 Butte On the margin of the Thermalito Afterbay, on the south side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 42 Comment
  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
  JEPS98314  Ranunculus pusillus Lowell Ahart 2000-5-13 8356 Butte 5 air miles SW of Oroville (margin of Thermalito Afterbay S side of access road to boat ramp, W of Larkin Road, about 1 1/4 mi S of Oroville Airport) 42 Comment
  JEPS98680  Ranunculus pusillus Lowell Ahart 2000-5-13 8356 Butte 5 air miles SW of Oroville (Thermalito Afterbay, S side of access road to the boat ramp, W of Larkin Road, 1 1/4 mi S of Oroville Airport) 42 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
  CHSC61204  Rhus aromatica Lowell Ahart 1993-4-8 6929 Butte on east side of the gravel road, Oroville Wildlife Area, east of the Feather River, about 2 1/2 miles south of the Oroville Airport. 30 Comment
  UC1609009  Rhus trilobata Lowell Ahart 1993-8-4 6929 Butte 2.5 mi s Oroville Airport (e side of gravel road, e of Feather River); Oroville Wildlife Area 30 Comment
  CDA43069  Robinia pseudoacacia L. P. Janeway 2011-5-2 10251 Butte Sacramento Valley.; South side Feather River just east of Bedrock Park, Oroville; about 10-15 m back from the edge of the water and about 1 m higher. Comment
  CHSC108764  Robinia pseudoacacia L. P. Janeway 2011-5-2 10251 Butte Sacramento Valley. South side Feather River just east of Bedrock Park, Oroville; about 10-15 m back from the edge of the water. 42 Comment
  JEPS118634  Robinia pseudoacacia L. P. Janeway 2011-5-2 10251 Butte Sacramento Valley. South side Feather River just east of Bedrock Park, Oroville; about 10-15 m back from the edge of the water and about 1 m higher. Comment
  CHSC90654  Romulea rosea var. australis Rod Lacey 2005-3-28 Butte Thermalito; 2 blocks north of Hwy 162, between 10th Street and 12th Street. 54 Comment
  JEPS108155  Romulea rosea var. australis Rod Lacey 2005-3-28 Butte Thermalito; 2 blocks north of Hwy 162, between 10th Street and 12th Street. Ruderal Valley Grassland 54 Comment
  CHSC77982  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2000-5-13 8350 Butte On the margin of the Thermalito Afterbay, on the south side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 42 Comment
  CHSC78858  Rotala indica Lowell 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. 42 Comment
  CHSC78981  Rotala indica Vernon H. Oswald 2000-10-4 9975 Butte Thermalito Afterbay at the boat launching facility off of Larkin Rd. 30 Comment
  JEPS98374  Rotala indica Lowell Ahart 2000-10-15 8707 Butte 5 air miles S of Oroville (strand of the Thermalito Afterbay, S side of access road to the boat ramp; W of Larkin Road, about 1 1/4 mi S of Oroville Airport) 42 Comment
  CHSC45811  Rubus armeniacus L. P. Janeway 1987-5-7 2023 Butte Table Mtn Rd where it is at the base of the RR fill and overlooking Thermalito Forebay. 91 Comment
  CHSC35029  Sagina apetala R. A. Schlising 1981-4-6 4017 Butte SW of Oroville along Hwy 70, 0.8 mi N of jct with Cox Lane. Comment
  CHSC35034  Sagina apetala R. A. Schlising; R. Banchero, J. Jokerst 1981-3-22 4007 Butte NW of Oroville and N of Thermalito Forebay, in Campbell Hills. 106 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
  CHSC87192  Sagina decumbens subsp. occidentalis Lowell Ahart 2004-4-4 10719 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
  CAS-BOT-BC129903  Salix bonplandiana A. A. Heller 1913-4-4 10694 Butte Levee at Oroville Comment
  CHSC108835  Salix exigua var. hindsiana Lowell Ahart 2012-4-17 17883 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
  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
  JEPS119590  Salix exigua var. hindsiana Lowell Ahart 2012-4-17 17883 Butte About 200 yards southeast of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. Comment
  JEPS119591  Salix exigua var. hindsiana Lowell Ahart 2012-4-17 17884 Butte About 200 yards southeast of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. Comment
  RSA0045623  Salix exigua var. hindsiana Lowell A. Ahart 2012-4-17 17884 Butte Area where cobbles were removed for Oroville Dam, about 100 yards south of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. 35 Comment
  CHSC108766  Salix gooddingii L. P. Janeway 2011-5-9 10253 Butte Sacramento Valley. South side Feather River just east of Bedrock Park, Oroville; about 10-15 m back from the edge of the water. 42 Comment
  CHSC108823  Salix gooddingii Lowell Ahart 2012-4-17 17872 Butte On the west side of a deep ditch, area where cobbles were removed for Oroville Dam, about 100 yards south of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. 35 Comment
  JEPS119578  Salix gooddingii Lowell Ahart 2012-4-17 17872 Butte About 100 yards south of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. Comment
  RSA0045621  Salix gooddingii Lowell A. Ahart 2012-4-17 17872 Butte Area where cobbles were removed for Oroville Dam, about 100 yards south of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. 35 Comment
  A383166  Salix laevigata A. A. Heller 1913-3-9 10694 Unknown Hills two miles north of Oroville Comment
  GH383215  Salix laevigata A. A. Heller 1913-4-4 10694 Unknown Levee at Oroville Comment
  GH383480  Salix lasiolepis A. A. Heller 1913-4-4 10695 Unknown Levee at Oroville Comment
  CAS-BOT-BC239956  Scribneria bolanderi Lowell Ahart 1980-5-4 2173 Butte Thermalito 65 Comment
  CHSC29300  Scribneria bolanderi J. D. Prouty 1980-4-25 80 .81 Butte N of Serene Lane ca. 3 mi. s of Oroville. 82 Comment
  CHSC30028  Scribneria bolanderi L. Ahart 1980-5-4 2173 Butte Pasture field southwest of the intersection of Nelson Ave and 20th, Thermalito. 65 Comment
  CDA43075  Senecio vulgaris L. P. Janeway 2011-6-7 10364 Butte Sacramento Valley.; Along Nelson Ave 1.0 road km west of its bridge over Thermalito Forebay, about 5.7 air km west of Oroville. Comment
  CHSC108784  Senecio vulgaris L. P. Janeway 2011-6-7 10364 Butte Sacramento Valley. Along Nelson Ave 1.0 road km west of its bridge over Thermalito Forebay, about 5.7 air km west of Oroville. Weedy edge of road side drainage. 99 Comment
  CHSC45011  Senecio vulgaris Lowell Ahart 1977-3-29 1233 Butte In the borrow area, about 5 air miles south-west of Oroville. 30 Comment
  CDA31831  Sesbania punicea C. Owens 2010-7-2 s.n. Butte Oroville Wildlife Area, adjacent to the Feather River. 0 Comment
  CDA43366  Sesbania punicea D. G. Kelch 2012-9-19 12 .354 Butte Oroville, immediately west of sewage treatment plant. Comment
  CHSC78516  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
  SEINET9759302 Image available Sesbania punicea Richard Carter 2006-7-31 Butte ca. 4 airmiles S Oroville jct. Hwy CA 70 and Hwy CA 162, Oroville Wildlife Area Comment
  SEINET9798642 Image available Sesbania punicea Richard Carter 2006-7-31 Butte ca. 4 airmiles S Oroville jct. Hwy CA 70 and Hwy CA 162, Oroville Wildlife Area Comment
  CDA37215  Setaria parviflora CDFA Staff 2004-7-1 s.n. Butte Thermalito Afterbay. 0 Comment
  CHSC112631  Setaria parviflora Lowell Ahart 2013-10-16 19118 Butte South edge of the paved road, about 100 yards southeast of the restroom, near end of road to the Larkin Road Boat Launch Area, about 1/4 mile west of Larkin Road, about 2 miles (air) southwest of the Oroville Airport. 28 Comment
  CHSC95998  Setaria parviflora L. P. Janeway 2006-7-19 8820 Butte Sacramento Valley. Shallow arm of Thermalito Afterbay, 150 m east of Wilber Road, 2.1 km south of Hwy 162. 41 Comment
  JEPS120725  Setaria parviflora Lowell Ahart 2013-10-16 19118 Butte South edge of the paved road, about 100 yards SE of the restroom, near end of road to the Larkin Road Boat Launch Area, about 1/4 mile W of Larkin Road, about 2 air miles SW of the Oroville Airport. Comment
  RSA724863  Setaria parviflora L. P. Janeway 2006-7-19 8820 Butte Sacramento Valley, Shallow arm of Thermalito Afterbay, 150 m east of Wilbur Road, 2.1 km south of Hwy 162. 41 Comment
  CHSC116568  Sidalcea calycosa subsp. calycosa B. Castro; Robin Carter 2016-4-14 2130 Butte Sacramento Valley. CA 1.9 air mi E of Hwy 99, 1.3 mi S of Hwy 162E and 1.1 mi SSW of the Oroville Airpor, off N edge of SE protion of the Thermalito Afterbay, near S end of old wilbur Road. 42 Comment
  CHSC13720  Sidalcea hartwegii J. G. Moore 1969-5-5 145 Butte Hwy. 70, 3 mi. S of Oroville. Comment
  HSC23513  Sidalcea hartwegii J. Moore 1969-5-5 145 Butte Hwy. 70, 3 mi. S of Oroville Comment
  CHSC116567  Sidalcea hirsuta B. Castro; Robin Carter 2016-4-14 2129 Butte Sacramento Valley. CA 2 air mi E of Hwy 99, 1.3 mi S of Hwy 162E and 1.1 mi SSW of the Oroville Airpor, off N edge of SE protion of the Thermalito Afterbay, near S end of old Wilbur Road. 42 Comment
  CHSC50663  Silene antirrhina Lowell Ahart 1990-4-28 6469 Butte In the borrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  UC1562447  Silene antirrhina Lowell Ahart 1990-4-28 6469 Butte in the borrow area about 1/4 mi s Feather River ( about 4/10 mi w of Pacific Heights Road, about 4 1/2 mi sw of Oroville); s of the Feather River 30 Comment
  CHSC35024  Sisymbrium officinale R. E. Preston 1982-3-27 205 Butte Along dirt road; Campbell Hills, n of Thermalito Afterbay, Oroville. In saddle. 121 Comment
  CHSC47513  Solanum americanum Lowell Ahart 1989-11-12 6403 Butte In the borrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  CHSC107121  Soliva sessilis L. P. Janeway 2011-4-26 10237 Butte Sacramento Valley. Oroville; in gravel parking area at east side of Feather River Ranger District office (875 Mitchell Ave.) 59 Comment
  UCD169794  Soliva sessilis L. P. Janeway 2011-4-26 10237 Butte Sacramento Valley. Oroville; in gravel parking area at east side of Feather River Ranger District office (875 Mitchell Ave). 59 Comment
  CHSC108785  Sonchus asper subsp. asper L. P. Janeway 2011-6-7 10363 Butte Sacramento Valley. Along Nelson Ave 1.0 road km west of its bridge over Thermalito Forebay, about 5.7 air km west of Oroville. Weedy edge of road side drainage. 99 Comment
  JEPS118736  Sonchus asper subsp. asper L. P. Janeway 2011-6-7 10363 Butte Sacramento Valley. Along Nelson Ave 1.0 road km west of its bridge over Thermalito Forebay, about 5.7 air km west of Oroville. Oroville 7.5' quad. Comment
  CDA43068  Spartium junceum L. P. Janeway 2011-5-2 10250 Butte Sacramento Valley.; South side Feather River just east of Bedrock Park, Oroville; about 10-15 m back from the edge of the water and about 1 m higher. Comment
  CHSC108763  Spartium junceum L. P. Janeway 2011-5-2 10250 Butte Sacramento Valley. South side Feather River just east of Bedrock Park, Oroville; about 10-15 m back from the edge of the water. 42 Comment
  CHSC106882  Spergularia bocconi Lowell Ahart 2011-5-1 17339 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
  CHSC108783  Spergularia rubra L. P. Janeway 2011-6-7 10365 Butte Sacramento Valley. Along Nelson Ave 1.0 road km west of its bridge over Thermalito Forebay, about 5.7 air km west of Oroville. Weedy edge of road side drainage. 99 Comment
  CHSC50665  Spergularia rubra Lowell Ahart 1990-4-28 6470 Butte In the borrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  UC1562452  Spergularia rubra Lowell Ahart 1990-4-28 6470 Butte in the borrow <sic> area about 1/4 mi s Feather River (about 0.4 mi w of Pacific Heights Rd., about 4 1/2 mi sw of Oroville) 30 Comment
  CHSC84398  Stachys pycnantha Lowell Ahart 2003-7-23 10439 Butte Around the margins of ponds, Oroville Wildlife Area, about 1/4 mile west of Pacific Heights Road, about 5 miles (air) southwest of Oroville. 26 Comment
  JEPS104639  Stachys pycnantha Lowell Ahart 2003-7-23 10439 Butte Around the margins of ponds, Oroville Wildlife Area, ca 1/4 mi w of Pacific Heights Rd, ca 5 mi (air) sw of Oroville. 26 Comment
  CHSC42243  Stachys stricta L. P. Janeway 1986-10-19 1942 Butte Along Table Mtn Rd ca 0.7 mi NW of Garden Dr. and at base of RR fill slope; overlooking Thermalito Forebay. 91 Comment
  CHSC52077  Stachys stricta B. Castro 1987-7-24 187 Butte Between curve in Table Mtn Blvd and the W. Pacific RR line. 103 Comment
  CHSC35039  Stellaria nitens R. Schlising; J. D. Jokerst, R. Banchero 1981-3-22 4003 Butte NW of Oroville and N of Thermalito Forebay, in Campbell Hills. 106 Comment
  CHSC50034  Stellaria nitens Lowell Ahart 1990-3-19 6423 Butte Along the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 36 Comment
  CHSC34018  Stephanomeria elata L. Ahart 1981-7-18 2939 Butte On the burrow area ca. 4.5 mi sw of Oroville. Along the dirt rd near the base of the levee. 35 Comment
  CAS-BOT-BC221936  Taeniatherum caput-medusae John Thomas Howell 1962-6-15 37422 Butte 5 miles west of Oroville Comment
  CHSC50057  Thalictrum fendleri var. polycarpum Lowell Ahart 1990-4-8 6445 Butte On the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  UCD93334  Thinopyrum ponticum Beecher Crampton 1971-3-30 8666 Butte 4 miles SW of Oroville. Comment
  CHSC50029  Thysanocarpus curvipes Lowell Ahart 1990-3-9 6415 Butte On the banks on the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CHSC35027  Thysanocarpus radians R. E. Preston 1982-3-27 211 Butte S boundary of State Park Shooting Area, ca. 2 mi s of Oroville Municipal Airport. 45 Comment
  CHSC50657  Thysanocarpus radians Lowell Ahart 1990-4-23 6463 Butte In field, about 1/2 mile east of Larkin Road, about 1 mile south of the Oroville Airport. 45 Comment
  CHSC566  Thysanocarpus radians R. Carter 1964-7-13 39 Butte 4 mi. NE of Oroville on SW corner of Nelson Ave. and 20th St. Comment
  CHSC65491  Thysanocarpus radians Ron P. Garcia 1995-3-31 1 Butte Ca. 100 ft w of Rabe Rd, ca. 1.1 mi e of Larkin Rd, ca. 4 mi sw of Oroville. Fernandez Land Grant. 47 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
  CHSC88971  Thysanocarpus radians Christine Hantelman 2000-4-8 66 Butte In vernal pool preserve between Oroville airport runway and Table Mountain golf course. Around pools. 60 Comment
  CHSC90605  Thysanocarpus radians Jose Romero 1983-4-20 6 Butte Site located on the Oroville Wildlife Area. Junction of Larkin and Timothy Roads, 4 mi southwest of Oroville. 45 Comment
  HSC95810  Thysanocarpus radians L. Ahart 2003-3-24 10023 Butte 50 yds. N of the access road to the boat ramp at the Thermalito Afterbay, 200 yds. W of Larkin Rd., 1.25 mi. S of Oroville Airport, 5 mi. SW of Oroville 49 Comment
  JEPS104016  Thysanocarpus radians Lowell Ahart 2003-3-24 10023 Butte Fields, ca 50 yd n of the access road to the boat ramp at the Thermalito Afterbay, ca 200 yd w of Larkin Rd, ca 1 1/4 mi south of the Oroville Airport, ca 5 mi (air) sw of Oroville. 48 Comment
  UC1562453  Thysanocarpus radians Lowell Ahart 1990-4-23 6463 Butte about 1/2 mi e of Larkin Road about 1 mi s Oroville Airport; s of the Oroville Airport 45 Comment
  UCD73330  Thysanocarpus radians Chuck Hughes 2008-3-18 21 Butte Oroville, west of 6th St. between Nelson Ave. school and baseball fields. Field has been approved for development. 71 Comment
  UCR228716  Thysanocarpus radians Charles Hughes 2008-3-18 021 Butte Oroville, west of 6th Street between Nelson Avenue School and baseball fields 105 Comment
  CHSC108769  Tribulus terrestris L. P. Janeway 2011-6-7 10366 Butte Sacramento Valley. Along Nelson Ave 1.0 road km west of its bridge over Thermalito Forebay, about 5.7 air km west of Oroville. Weedy edge of road side drainage. 99 Comment
  UCD169100  Trifolium albopurpureum Ramona Robison 2013-4-15 5 Butte Clay Pit State Vehicular Recreation Area. 41 Comment
  CHSC87223  Trifolium albopurpureum var. olivaceum Lowell Ahart 2004-4-4 10722 Butte About 300 yards east of Wilber Road, southeast of the high hill crossed by Wilber Road, southeast of the wash, cattle pasture, about 3 miles (air) west of Thermalito. 48 Comment
  JEPS105934  Trifolium albopurpureum var. olivaceum Lowell Ahart 2004-4-4 10722 Butte About 300 yards east of Wilber Road, southeast of the high hill crossed by Wilber Road, southeast of the wash, cattle pasture, about 3 miles (air) west of Thermalito 48 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
  CHSC77988  Trifolium cernuum Lowell Ahart 2000-5-13 8343 Butte 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
  JEPS98578  Trifolium cernuum Lowell Ahart 2000-5-13 8343 Butte 5 air miles SW of Oroville (S side of access road to the boat ramp, Thermalito Afterbay, W of Larkin Road, 1 1/4 mi S of Oroville airport) 42 Comment
  JEPS98712  Trifolium cernuum Lowell Ahart 2000-5-13 8343 Butte 5 air miles SW of Oroville (S side of access road to the boat ramp, Thermalito Afterbay, W of Larkin Road, 1 1/4 mi S of Oroville airport) 42 Comment
  CHSC50671  Trifolium ciliolatum Lowell Ahart 1990-4-8 6441 Butte On steep banks, on the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CDA27935  Trifolium depauperatum var. depauperatum L. Ahart 2004-4-1 10707 Butte On the north side of Nelson Avenue, about 45 yards west of the intersection of 20th Street and Nelson Avenue, Thermalito. Comment
  CHSC87194  Trifolium depauperatum var. depauperatum Lowell Ahart 2004-4-1 10708 Butte On the bottom of a drain ditch, o nthe south side of the basalt levee, on the north side of Nelson Avenue, about 45 yards west of the intersection of 20th Street and Nelson Avenue, Thermalito. 53 Comment
  CHSC87198  Trifolium depauperatum var. depauperatum Lowell Ahart 2004-4-1 10707 Butte On the margins of vernal pools, on the north side of Nelson Avenue, about 45 yards west of the intersection of 20th Street and Nelson Avenue, Thermalito. 53 Comment
  CHSC90491  Trifolium depauperatum var. depauperatum Jose Romero 1983-4-20 4 Butte Site located on the Oroville Wildlife Area. Junction of Larkin and Timothy Rds., 4 mi. s.w. of Oroville. 45 Comment
  JEPS106003  Trifolium depauperatum var. depauperatum Lowell Ahart 2004-4-1 10707 Butte On the margins of vernal pools, on the north side of Nelson Avenue, about 45 yards west of the intersection of 20th Street and Nelson Avenue, Thermalito 53 Comment
  CHSC77989  Trifolium dubium Lowell Ahart 2000-5-13 8342 Butte 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
  JEPS98421  Trifolium dubium Lowell Ahart 2000-5-13 8342 Butte 5 air miles SW of Oroville (S side of access road to boat ramp at the Thermalito Afterbay, W of Larkin Road, 1 1/4 mi S of Oroville Airport) 42 Comment
  CDA42766  Trifolium glomeratum L. Ahart 2011-5-1 17342 Butte North side of the intersection of Georgia Pacific Way and Feather River Blvd, about 100 yards east of Highway 70, about 1 mile south of Oroville. Comment
  CHSC106869  Trifolium glomeratum Lowell Ahart 2011-5-1 17342 Butte North side of the intersection of Georgia Pacific Way and Feather River Blvd, about 100 yards east of Highway 70, about 1 mile south of Oroville. 42 Comment
  JEPS118325  Trifolium glomeratum Lowell Ahart 2011-5-1 17342 Butte North side of the intersection of Georgia Pacific Way and Feather River Blvd, about 100 yards east of Highway 70, about 1 mile south of Oroville 42 Comment
  RSA0080128  Trifolium glomeratum Lowell Ahart 2011-5-1 17342 Butte North side of the intersection of Georgia Pacific Way and Feather River Blvd., about 100 yards east of Highway 70, about 1 mile south of Oroville. 42 Comment
  CHSC90521  Trifolium hirtum Jose Romero 1983-4-20 10 Butte Site located at the Oroville Wildlife Area. Junction of Larkin and Timothy Roads, 4 mi southwest of Oroville. 45 Comment
  CHSC87224  Trifolium microcephalum Lowell Ahart 2004-4-4 10721 Butte About 300 yards east of Wilber Road, southeast of the high hill crossed by Wilber Road, southeast of the wash, cattle pasture, about 3 miles (air) west of Thermalito. 48 Comment
  JEPS105935  Trifolium microcephalum Lowell Ahart 2004-4-4 10721 Butte About 300 yards east of Wilber Road, southeast of the high hill crossed by Wilber Road, southeast of the wash, cattle pasture, about 3 miles (air) west of Thermalito 48 Comment
  CHSC50043  Trifolium oliganthum Lowell Ahart 1990-4-8 6646 Butte On the south side of Pacific Heights Road, about 3 1/2 miles southwest of Oroville. 39 Comment
  CHSC112892  Trifolium tomentosum Robin Carter; Sabrina Bell 2012-6-6 Butte Sacramento Valley. N side of Thermalito Forebay/Power Canal, ca 0.3 mi W of Hwy 70 and ca 0.2 mi S of Garden Drive, at S end of picnic/boat ramp recreation area, on the north end of Oroville. 71 Comment
  UC176293  Trifolium variegatum var. melananthum A. A. Heller 1913-3-9 10684 Butte 2 mi n Oroville (hills) Comment
  CHSC117332  Trifolium willdenovii L. P. Janeway 2016-4-26 11940 Butte Sacramento Valley. Along Nelson Road 1.0 road km west of its bridge across Thermalito Forebay; where the road crosses Campbell Hills. 94 Comment
  CHSC87214  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
  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
  SBBG119953  Trifolium willdenovii L. Ahart 2004-4-4 10723 Butte ca. 300 yards E of Wilber Rd, SE of the high hill crossed by Wilber Rd, SE of the wash, ca. 3 mi (air) W of Thermalito 48 Comment
  CHSC77984  Triodanis biflora Lowell Ahart 2000-5-13 8344 Butte On the margin of the Thermalito Afterbay, on the south side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 42 Comment
  JEPS98583  Triodanis biflora Lowell Ahart 2000-5-13 8344 Butte 5 air miles SW of Oroville (margin of the Thermalito Afterbay, S side of access road to the boat ramp, W of Larkin Road, 1 1/4 mi S of the Oroville Airport) 42 Comment
  JEPS98715  Triodanis biflora Lowell Ahart 2000-5-13 8344 Butte 5 air miles SW of Oroville (margin of the Thermalito Afterbay, S side of access road to the boat ramp, W of Larkin Road, 1 1/4 mi S of the Oroville Airport) 42 Comment
  CHSC2506  Triphysaria eriantha W. Fitzwater 1958-4-3 Butte Oroville plains. Comment
  CHSC90165  Triphysaria eriantha Jose Romero 1983-4-20 13 Butte Site located on the Oroville Wildlife Area. Junction of Larkin and Timothy Rds., 4 mi. s.w. of Oroville. 45 Comment
  SJSU7522  Triphysaria eriantha L. S. Rose 1967-5-6 67054 Butte Oroville 51 Comment
  UCD73328  Triphysaria eriantha subsp. eriantha Chuck Hughes 2008-3-18 19 Butte Oroville, west of 6th St. between Nelson Ave. school and baseball fields. Field has been approved for development. 71 Comment
  UCR228715  Triphysaria eriantha subsp. eriantha Charles Hughes 2008-3-18 019 Butte Oroville, west of 6th Street between Nelson Avenue School and baseball fields 105 Comment
  CHSC65524  Triteleia hyacinthina Ron P. Garcia 1995-4-11 17 Butte Ca. 100 ft s of Rabe Rd, ca. 0.4 mi e of Larkin Rd, ca. 4 mi sw of Oroville. Fernandez Land Grant. 47 Comment
  CHSC65866  Triteleia hyacinthina Mark S. Cederborg 1995-4-11 17 Butte Ca. 100 ft s of Rabe Rd, ca. 0.4 mi e of Larkin Rd, ca. 4 mi sw of Oroville. Fernandez Land Grant. 47 Comment
  CHSC88980  Triteleia hyacinthina Christine Hantelman 2000-4-8 68 Butte On vernal pool preserve between Oroville airport runway and Table Mountain golf course. Around pools. 60 Comment
  CHSC90571  Triteleia laxa Tyler Williams 1984-4-5 12 Butte Oroville. Ca. 1 yd s of Pacific Heights Rd., 1.0 mi sw of its junction with Ophir Rd. on road shoulder. 45 Comment
  CHSC33217  Tropidocarpum gracile R. Schlising; J. Jokerst, R. Banchero 1981-3-22 4006 Butte NW of Oroville and N of Thermalito Forebay in the Campbell Hills. In pasture. 137 Comment
  CAS-BOT-BC91082  Umbellularia californica Lowell Ahart 1977-3-29 s.n. Butte About 5 miles southwest of Oroville. 33 Comment
  CHSC47425  Umbellularia californica Lowell Ahart 1977-3-29 1232 Butte Along the Feather River, about 5 miles south-west of Oroville. 30 Comment
  CAS-BOT-BC381823  Uropappus lindleyi Lowell Ahart 1990-4-8 6440 Butte On the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville 33 Comment
  CHSC50020  Uropappus lindleyi Lowell Ahart 1990-4-8 6440 Butte On the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CHSC54528  Utricularia gibba Lowell Ahart 1991-8-17 6702 Butte Dredge pond on the north side of the Feather River northwest of the Hwy 70 Bridge in Oroville. 36 Comment
  UC1586514  Utricularia gibba Lowell Ahart 1991-8-17 6702 Butte n.w. of Hwy. 70 bridge in Oroville (dredge pond on n. side of Feather R.) 36 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
  CHSC205  Viburnum nudum K. Stern 1963-9-25 Butte Near Oroville. 52 Comment
  CHSC117588  Vicia americana subsp. americana L. P. Janeway 2016-6-26 11939 Butte Sacramento Valley. Along Nelson Road 1.0 road-km west of its brridge across Thermalito Forebay; were the road crosses Campbell Hills. 94 Comment
  CHSC50045  Vicia americana var. americana Lowell Ahart 1990-4-8 6444 Butte On the south side of Pacific Heights Road, about 3 1/2 miles southwest of Oroville. 33 Comment
  CHSC90367  Vicia villosa Jose Romero 1983-4-20 15 Butte Site located on the Oroville Wildlife Area. Junction of Larkin and Timothy Roads, 4 mi southwest of Oroville. 45 Comment
  CHSC117608  Vicia villosa subsp. varia L. P. Janeway 2016-4-26 11938 Butte Sacramento Valley. Along Nelson Road 1.0 road-km west of its bridge across Thermalito Forebay; where the road crosses Camp-bell Hills. 94 Comment
  CAS-BOT-BC203024  Vitis californica John Thomas Howell 1961-9-22 36751 Butte Feather River Highway 3 miles from Oroville Comment
  CHSC29306  Vulpia bromoides J. D. Prouty 1980-4-25 80 .80 Butte Vernal pools and drainages. Between Power House Rd. and Lone Tree Rd. 68 Comment
  CAS-BOT-BC199943  Vulpia microstachys var. ciliata John Thomas Howell 1962-6-15 37423 Butte 5 miles west of Oroville Comment
  CHSC50708  Vulpia microstachys var. pauciflora Lowell Ahart 1990-4-28 6472 Butte At the base of steep banks on the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  UC1562450  Vulpia microstachys var. pauciflora Lowell Ahart 1990-4-28 6472 Butte about 3.5 mi sw Oroville (steep banks on the s side of Pacific Heights Road) 33 Comment
  CHSC29304  Vulpia myuros var. myuros J. D. Prouty 1980-4-25 80 .85 Butte N of Serene Lake ca. 3 mi. s of Oroville. 82 Comment
  CHSC108824  Wolffia borealis Lowell Ahart 2012-4-17 17876 Butte Bare area where cobbles were removed for Oroville Dam, about 100 yards south of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. 35 Comment
  CHSC45326  Wolffia globosa Lowell Ahart 1988-10-16 6186 Butte Dredge pond located ca. 300 ft ne of intersection of Pacific Heights Rd. and Hwy 70, ca. 1 mi s of Oroville. 45 Comment
  CAS-BOT-BC383677  Xanthium strumarium John Thomas Howell 1961-9-22 36720 Butte Bank of Feather River, Oroville 53 Comment
  CHSC50019  Yabea microcarpa Lowell Ahart 1990-4-8 6448 Butte On the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment



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