Search Results — 2000 specimen records retrieved (1603 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)

Results for search: County=BUTTE; Source=All;   
Map/download results:

BerkeleyMapper with layers and yellow flags

Download Options:
Select all records · Select records with coordinates

Include annotations and voucher information

PLEASE NOTE: Due to changes in newer versions of Excel, directly copying text from the above selected results does not produce a usable table.
    Follow these steps:
      1. The contents of the selected results window must be copied into a text editor like TextEdit for Mac or WordPad for Windows
      2. The selected results must be saved as a new text document.
      3. This new text document can now be copied into Excel or imported as a tab delimited text file.

(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page.
A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC600580  Abies magnifica var. magnifica H. F. Copeland 1931-6-11 Butte near Jonesville (woods above Kirby Meadows) Comment
  JEPS95255  Acer circinatum Steve Edwards 1992-5-17 Butte Vilas Road, 0.9 mi from its junction with Cohasset Road Comment
  CHSC99657  Acer macrophyllum H. Koeth; H. Jansen 2007-5-2 Butte Big Chico Creek Ecological Reserve, Chico (Forest Ranch). UTM10 610006E 4406721N. 471 Comment
  CAS-BOT-BC21750  Achillea millefolium John Thomas Howell 1962-6-16 37581 Butte Pentz road 2 mi. s. of Magalia 609 Comment
  CHSC80585  Achillea millefolium Lowell Ahart 2001-6-13 8818 Butte Center of the dirt road east of the large pump, on the south side of Evans-Reimer Road, about 1 mile east of Pennington Road, Gray Lodge Waterfowl Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  JEPS110242  Achnatherum lemmonii Lowell Ahart 2006-5-10 12625 Butte Road bank, on the south side of the poor dirt road, Bardees Bar Road, south of the small stream, about 200 yards northwest of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 1/2 miles (air) southwest of Pulga 385 Comment
  JEPS116068  Achnatherum lemmonii Lowell Ahart 2009-5-30 15796 Butte About 50 yards south of the fence and about 100 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 269 Comment
  RSA268070  Achnatherum lemmonii var. lemmonii J. R. Reeder, C. G. Reeder 1972-6-6 5654 Butte Ca. 4 miles N of Forest Ranch. 1067 Comment
  CDA13731  Achnatherum occidentale subsp. pubescens G. F. Hrusa, T. D. Wilfred 1997-6-27 13909 Butte Sierra Nevada; Feather Falls/Cascade Rd. to USFS 21N22Y, 1 km. E to summit. Slopes densely forested with rare granite rock outcrops & gravelly open areas. Small colony in sandy-gravelly opening. Perennial, bunching. Comment
  CAS-BOT-BC218050  Achnatherum stillmanii Lowell Ahart 1983-6-30 4190 Butte About 1.5 miles SE of Stirling City 1100 Comment
  JEPS110267  Achnatherum stillmanii Lowell Ahart 2006-6-24 12852 Butte On the east side of the dirt road (Ponderosa Way), on Cohasset Ridge, about 3 1/2 miles (air) northeast of Cohasset 1130 Comment
  UCD51409  Achnatherum stillmanii M. L. Maynard 1984-8-1 s.n. Butte Hwy. 32, 30 miles east of Chico. Comment
  CHSC111347  Achyrachaena mollis Lowell Ahart 2012-5-2 17951 Butte On damp dark clay soil, 20 yards south of the fence, west of the Government Pole Line, Upper Bidwell Park, about 1 mile east of Chico. 85 Comment
  UCR187085  Achyrachaena mollis Anna M. Hurlbutt, C. R. Weeks 2007-4-26 007 Butte Sierra Nevada Mtns., Paradise, < 0.25 mi N of Skyway, c. 5 mi E of Oroville Reservoir, bluffs above Hamlin Canyon, formed by Butte Cr. and Little Butte Cr. 488 Comment
  CHSC113449  Acmispon americanus var. americanus Lowell Ahart 2014-7-10 19625 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1664 Comment
  UCD103796  Acmispon americanus var. americanus A. A. Heller 1914-7-24 11625 Butte Forest Ranch. 731 Comment
  CHSC50667  Acmispon argophyllus var. fremontii Lowell Ahart 1990-5-25 6482 Butte Near the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/8 mile north-west of the Enterprise Bridge across Lake Oroville. 274 Comment
  CHSC108789  Acmispon brachycarpus Lowell Ahart 2012-4-9 17845 Butte Near the high east cliff edge of Big Chico Creek, about 5 yads west of South Rim Trail, south part of Upper Bidwell Park, about 2 1/2 miles (air) northeast of Chico. 206 Comment
  UCD103754  Acmispon denticulatus R. N. Raynor; H. A. Hannesson 1941-5-9 s.n. Butte Feather River, 4 mi. S. of Oroville. Comment
  CHSC65555  Acmispon grandiflorus var. macranthus L. P. Janeway 1995-6-6 4775 Butte South-trending ridgetop at the far western end of Jackson Ranch Ridge, about 0.9 mi east-northeast of the falls of Feather Falls. 1054 Comment
  CHSC28864  Acmispon parviflorus J. D. Jokerst; T. B. Devine, D. Greenstein 1979-5-18 467 Butte Top of North Table Mt., ca 400 m NW of Jct of Cherokee Rd., and E edge of Mt. 396 Comment
Read comments
Jan 19 2011
  CAS-BOT-BC391597  Actaea rubra Lowell Ahart 1981-9-21 3194 Butte Half a mile north of the Lost Creek Reservoir 1100 Comment
  CHSC30820  Adiantum capillus-veneris M. S. Taylor; J. D. Jokerst 1980-4-18 2540 Butte S side of Humbug Rd, ca. 1 mi ne of Centerville. 365 Comment
  CHSC21827  Adiantum jordanii B. L. Wiley 1975-4-4 5 Butte Ca. 100 yds s of Butte Creek and 0.4 mi w of Covered Bridge, 6.4 mi ese of Chico. 115 Comment
  CHSC84642  Adiantum jordanii Matt Quinn 2001-4-4 13 Butte Found along vertical bedrock wall on south side of Honey Run Creek, approximately 3/4 mile upstream of confluence with Little Butte Creek. 243 Comment
  CDA415  Aegilops triuncialis L. Ahart 2005-7-12 12142 Butte Poor road on the south side of Forest Road 21N40, about 100 yards west of Encina Grade Road (Bloomer Hill Road) (Forest Road 21N39), about 3/4 of a mile (air) west of Bloomer Hill, about 6 miles west of Oroville Quincy Highway. Comment
  CDA43077  Aegilops triuncialis L. P. Janeway 2011-6-29 10415 Butte Northern High Sierra Nevada.; Along Encino Grande (Ponderosa Way) 1.0 road km west of the top of Bloomer Hill; 0.7 air km west-northwest of the top of Bloomer Hill. Comment
  SEINET10942474  Aegilops triuncialis K. Bridwell 1978-5-25 Bridwell 110 Butte Ungrazed rangeland, ca. 300 yds. S of Pentz Rd., ca. 3 mi. E of intersection with Hwy. 99, ca. 12 mi. SE of Chico. Annual grassland. 76 Comment
  CHSC90077  Aesculus californica Elizabeth A. Ballou 1991-4-23 7 Butte About 0.25 mi up Cohasset Ridge off of Cohasset Highway. 335 Comment
  CHSC38317  Agoseris grandiflora Vernon Oswald 1983-6-16 691 Butte Upper Bidwell Park, Chico, on the north rim ca. 800 ft W of the E end of the North Rim Trail. 414 Comment
  CHSC30030  Agoseris heterophylla Lowell Ahart 1980-5-4 2209 Butte Ca. 50 m SW of the intersection of Forbestown Rd and Hurleton Swedes Flat Rd, ca. 1/2 mi SE of Hurleton. 600 Comment
  CHSC97343  Agrimonia gryposepala L. P. Janeway 2007-8-6 9153 Butte Northern High Sierra Nevada. Plumas National Forest; Hughes Place, at head of eastern side drainage of Chino Creek and near head of Jack Creek, at break between Chino Ridge and Swayne Hill; 3.5 km north of mouth of French Creek at North Fork Feather River arm of Lake Oroville. At an old abandoned farm or small lumber mill pond in an opening in mixed conifer forest. Diffuse patch of this on slope next to east side of pond (with Pycnanthemum californicum) and scattered elsewhere around the pond berm. 776 Comment
  CHSC78352  Agrostis elliottiana Lowell Ahart 2000-6-27 8531 Butte On the north side of Bean Creek Road, about 1/4 mile southeast of Little Bald Rock, about 1 1/4 mile northeast of Big Bald Rock, about 4 miles (air) northeast of Madrone Lake, about 13 miles (air) northeast of Oroville. 1066 Comment
  CHSC42996  Agrostis exarata Lowell Ahart 1987-7-8 5799 Butte Along Big Bar Mountain Road, about 3 miles south-west of Coyote Gap, south-east of Pulga. 1280 Comment
  CHSC84154  Agrostis exarata Lowell Ahart 2003-6-30 10333 Butte In the gutter on the north side of Fields Ridge Road, north of the Ponderosa Reservoir, about 3 miles (air) north of Forbestown. 491 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
  SEINET10507089  Agrostis gigantea Lowell Ahart 1985-11-7 Ahart 5235 Butte Lake Oroville, on the north side of the South Fork of the Feather River, about 200 yards north-west of the Ponderosa Dam. Comment
  CHSC78355  Agrostis pallens Lowell Ahart 2000-6-29 8538 Butte On the west side of Concow Road at Flea meadow, about 1/2 mile west of Flea Mountain, about 3 1/2 miles (air) north of Concow Reservoir, about 5 miles (air) east of Magalia. 1036 Comment
  CHSC46077  Agrostis scabra J. D. Jokerst; R. A. Schlising 1982-10-7 1657 Butte Coon Hollow ca 1/2 mile west of where forest service road 27N74 crosses the West Branch of the Feather River. 1676 Comment
  CHSC28561  Agrostis stolonifera M. S. Taylor 1978-7-21 1796 Butte Lake Madrone, at its junction with Oroville-Quincy Hwy ca. 10 mi ne of Oroville. 609 Comment
  CHSC45103  Agrostis stolonifera Lowell Ahart 1988-9-4 6178 Butte Near Big Kimshew Creek, about 1 air miles north-east of Jones Meadow. 1920 Comment
  CHSC71407  Agrostis stolonifera Lowell Ahart 1998-7-18 8041 Butte Southwest of the lone oak tree, west of the cow chute on the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CHSC94427  Agrostis stolonifera Lowell Ahart 2006-8-15 13185 Butte Bare shallow drainage, east part of a large meadow with bogs, 5 yards west of Willow Creek, about 100 yards southeast of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1569 Comment
  CAS-BOT-BC138577  Agrostis variabilis A. A. Heller 1914-8-7 11660 Butte At the summit east of Jonesville. 2133 Comment
  CHSC105681  Agrostis variabilis Lowell Ahart 2010-9-21 17220 Butte Open meadow-like area, near a poor camp, 30 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1917 Comment
  CAS-BOT-BC48025  Ailanthus altissima John Thomas Howell 1959-9-20 34627 Butte Sierra Nevada - Foothills, east of Oroville Comment
  SEINET4342342  Aira caryophyllea J. Nachlinger 1984-4-8 910 Butte Table Mouintain, 4 miles north of Oroville 366 Comment
  CAS-BOT-BC138408  Aira caryophyllea var. capillaris M. S. Taylor; J. D. Jokerst; L. Ahart 1980-4-6 2442 Butte Old road ca. 100 feet west of Rocky Honcut Creek, ca. 1/8 mile north of Swedes Flat Road, ca. 2 miles east of Oroville-Bangor Highway, ca. 10 miles southeast of Oroville. 365 Comment
  JEPS98406  Aira elegantissima Lowell Ahart 2000-5-17 8363 Butte 7 1/2 air miles W of Oroville (S margin of Thermalito Afterbay, N side of the poor dirt road, about 1/10 mi N of the Richvale Hwy, 1/2 mi E of Hwy 99) 42 Comment
  CHSC38488  Albizia julibrissin Vernon Oswald 1983-6-13 671 Butte Upper Bidwell Park, Chico, along the n edge of the Hooker Oak Recreation Area. 80 Comment
  CHSC117325  Alisma lanceolatum B. Castro 2008-7-15 1769 Butte Sacramento Valley. Ca 2.5 mi W of Hwy 99 and 1.1 mi SE of Richvale,and ca 0.5 mi E of the Midway. Near jcn of Cherokee Canal, Southern Pacific RR and the Biggs Extension Canal along edge of rice field in adjacent ditch. 31 Comment
  CAS-BOT-BC445313  Alisma lanceolatum Lowell Ahart 1981-5-25 2837 Butte Along Central House Road, Honcut. 35 Comment
  CAS-BOT-BC445314  Alisma lanceolatum Lowell Ahart 1981-6-4 2838 Butte Peter Ahart Ranch, Honcut. 50 Comment
  JEPS113499  Alisma plantago-aquatica Lowell Ahart 2007-7-8 14277 Butte On the south side of North Honcut Creek, Peter Ahart Ranch, about 3/4 miles north and 2 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville 45 Comment
  CHSC21037  Alisma triviale M. S. Taylor 1975-10-3 922 Butte In slough, at bridge over Little Chico Creek on River Rd, ca. 10 mi w of Chico. 36 Comment
  CHSC31017  Alisma triviale M. S. Taylor; J. D. Jokerst 1979-11-11 2285 Butte Comment
  CHSC2059  Allium amplectens P. Delaplane 1965-4-6 58 Butte Ca. 3/4 mi above turnoff to Richardson Springs Rd. on Cohasset Rd. Comment
  CHSC30980  Allium amplectens M. S. Taylor; R. Schlising, L. Ahart 1980-5-31 2754 Butte Kunkle Reservoir, on e side of Pentz-Magalia Hwy, ca. 2 mi s of Paradise. 441 Comment
  CHSC96559  Allium amplectens L. P. Janeway 2006-4-30 8569 Butte Cascade Range Foothills. East edge of city of Chico; northwest side of Humboldt Road 2.4 km northeast of Bruce Road. 149 Comment
  SEINET195011  Allium amplectens A. A. Heller 1941-5-24 16152 Butte Clark Road 2 miles below Paradise. Comment
  UC1299745  Allium amplectens Freed W. Hoffman 1949-5-14 2805 Butte nw Oroville (summit of Table Mountain); Table Mountain Comment
  CAS-BOT-BC460728  Allium amplectens Frances Brown 1935-5-1 s.n. Butte Near Durham Comment
  CAS-BOT-BC460740  Allium amplectens A. A. Heller; H. E. Brown 1902-5-7 5480 Butte Berry Canyon (Near Clear Creek) Comment
  HSC38141  Allium amplectens Thomas W. Nelson, Jane P. Nelson 1976-5-9 2446 Butte Intersection of Palermo Rd. and SR 70, 4 mi. S of Oroville Comment
  POM110214  Allium amplectens C. C. Bruce 1897-05 1899 Butte [No locality information provided] Comment
  UC725435  Allium cratericola A. A. Heller 1938-4-3 15012 Butte summit of Table Mountain Table Mountain 304 Comment
  SEINET12046121  Allium howellii J. D. Mott 1978-1 19 Butte .5 mi E of Monk's store, Cohasset Stage Comment
  CAS-BOT-BC135817  Allium jepsonii B. Castro 1993-8-3 491 Butte Ca 1 mi S of Big Bar Mtn., 0.5 mi SE of Hungry Hunt Peak, on USFS rd 22N83 ca 0.1 mi W of its jcn with Rd 23N28. 1127 Comment
  SEINET194958  Allium membranaceum A. A. Heller 1938-5-28 15113 Butte Along Feather River Hwy E side of Jarboe Pass 22 mi from Oroville 610 Comment
  SEINET10471986  Allium obtusum Mary Susan Taylor 1980-5-27 Taylor 2695 Butte T21N R6E sc sec 30. Big Bend quad. On Big Bald Rock, ca. 3 mi E of Lake Madrone; Yellow Pine Forest, large granite dome 998 Comment
  CHSC95126  Allium obtusum var. obtusum L. P. Janeway 2006-5-28 8642 Butte Northern High Sierra Nevada. 0.6 km east of Concow Road, 1.1 km northeast of Rag Dump, 3.8 mi north of Flea Mountain. Northeast edge of +/- exposed granite ridge surrounded by mixed conifer forest. 1248 Comment
  JEPS108540  Allium obtusum var. obtusum L. P. Janeway 2006-5-28 8642 Butte Northern High Sierra Nevada. 0.6 km east of Concow Road, 1.1 km northeast of Rag Dump, 3.8 mi north of Flea Mountain. Northeast edge of +/- exposed granite ridge surrounded by mixed conifer forest 1248 Comment
  SEINET12050260  Allium peninsulare Unknown 1985-1 5003 Butte 1/8 mi E of the dirt road, about 1.5 mi NE of Concow of Reservoir 732 Comment
  CHSC49704  Allium peninsulare var. peninsulare Vernon Oswald 1985-5-6 1744 Butte Concow Rd. 1.1 me sw of its jct. With Ponderosa Way. 853 Comment
  POM110046  Allium peninsulare var. peninsulare George B. Grant 1902-05 H 5538 Butte Clear Creek. Comment
  CHSC33657  Allium validum R. Schlising; R. Banchero, J. Fuller, M. Merryman 1981-7-19 4154 Butte E of Stirling City, on S side of Bald Mt. 1691 Comment
  JEPS117691  Allium vineale Lowell Ahart 2010-6-6 16770 Butte Peter Ahart Ranch, about 1 3/4 miles north and 1 1/4 mile east of Honcut, about 12 miles south of Oroville 39 Comment
  CHSC35102  Allophyllum integrifolium R. Schlising; R. Banchero 1980-7-31 3944 Butte N end of Snag Lake. 1725 Comment
  CHSC27056  Alopecurus carolinianus Lowell Ahart 1978-4-21 1660 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC42836  Alopecurus carolinianus Lowell Ahart 1987-5-10 5606 Butte 1/8 mile south of Central House Road, east of the Western Pacific Railroad, about 1 1/2 miles north and 1 mile west of Honcut, about 12 miles south of Oroville. 30 Comment
  RSA0115343  Alopecurus carolinianus Lowell Ahart 2008-5-2 14704 Butte Below the high water line of Lake Oroville, about 300 yards east of the Enterprise Boat Lunch [Launch?] Area about 10 1/2 miles (air) northeast of Oroville. 217 Comment
  UC1594607  Alopecurus carolinianus Lowell Ahart 1992-4-7 6743 Butte ca. 2 mi. w. Biggs (on s. side of Biggs Princeton Rd.) 30 Comment
  CAS-BOT-BC137939  Alopecurus saccatus Lowell Ahart 1982-5-30 3429 Butte Sierra Nevada. Peter Ahart Ranch, ca. 2.5 mile north and 1/8 mile east of Honcut. 50 Comment
  CDA3268  Amaranthus albus Richard R. Halse 2006-8-2 6981 Butte In the Lindo Channel Greenway where it crosses under Mangrove Avenue, Chico. Comment
  JEPS110467  Amaranthus retroflexus Lowell Ahart 2006-9-28 13365 Butte On the east side of the North Fork of the Feather River, on the west side of Highway 70, about 50 yards southwest of the Shady Rest Area south of the Arch Rock Tunnel 445 Comment
  CHSC43583  Amaranthus rudis Vernon Oswald 1983-10-10 1061 Butte Bidwell State Park on the e bank of the Sacramento R. w of Chico. Between the parking lot at the boat ramp and the river. Comment
  CHSC50790  Ambrosia artemisiifolia Vernon H. Oswald; Lowell Ahart 1990-7-31 4425 Butte Camelot Estates Subdivision on the north side of Concow Reservoir. 621 Comment
  UC726737  Amelanchier utahensis A. A. Heller 1939-4-26 15383 Butte near river at foot of grade leading down from Stirling City Comment
  CHSC108142  Ammannia coccinea Lowell Ahart 2011-10-29 17719 Butte On the bare sides of a ditch, on the south side of Biggs Princeton Road, about 500 yards west of Riceton Highway, about 1 mile northwest of Biggs. 27 Comment
  CHSC42098  Ammannia coccinea Lowell Ahart 1986-11-9 5442 Butte About 1/10 mile south of the clay burrow for Oroville Dam, 1.4 mile east of Larkin Road, about 6 miles south-west of Oroville. 36 Comment
  UC1191563  Ammannia coccinea Herbert L. Mason 1945-9-19 12739 Butte n.w. Pennington (Gray Lodge Game Refuge); Gray Lodge Game Refuge Comment
  UC1563265  Ammannia coccinea Lowell Ahart 1990-10-5 6632 Butte ca. 3/4 mi. n.w. of Enterprise Bridge across Lake Oroville (ca. 1/8 mi. s.w. of Enterprise Boat Launch Area) 228 Comment
Read comments
1
  UCD169263  Amorpha fruticosa Lowell Ahart 2012-6-9 18177 Butte About 30 yards east of Ten Mile Road House, about 1/8 mile north of the old homestead, Upper Bidwell Park, about 9 miles (air) northeast of Chico. 269 Comment
  CDA40596  Amsinckia intermedia L. Ahart 2005-4-14 11700 Butte East of the railroad tracks, north of Spruce Street, Gridley. Comment
  CHSC90931  Amsinckia intermedia Lowell Ahart 2005-4-14 11700 Butte On the west bank of a deep ditch, east of the railroad tracks, north of Spruce Street, Gridley. 28 Comment
  RSA0090927  Amsinckia intermedia var. eastwoodiae C. C. Bruce 1897-05 1926 Butte [No locality information provided] Comment
  UC1609202  Amsinckia lycopsoides Lowell Ahart 1993-5-13 6935 Butte 1 3/4 mi n and 1/8 mi e of Honcut (about 12 mi s of Oroville); Peter Ahart Ranch 30 Comment
  UC726358  Amsinckia lycopsoides A. A. Heller 1941-3-16 15889 Butte along road 1/2 mi w Pentz Comment
  CHSC82568  Anagallis arvensis Tara Morgan 2002-5-7 59 Butte Within the Yankee Hill area on the east side of Oroville Lake and Highway 70 within a burn area from the 2001 Yankee Hill Fire. 549 Comment
  SEINET10507169  Andropogon glomeratus Mary Susan Taylor 1977-11-12 Taylor 1532 Butte Devil's Kitchen area, on S side of Upper Bidwell Park Road, Upper Bidwell Park, Chico. Foothill Woodland. Comment
  CHSC11879  Angelica breweri E. B. Copeland 1930-7-21 429 Butte Jonesville. 1650 Comment
  SBBG26817  Angelica breweri E. B. Copeland 1930-7-21 Butte Jonesville 1650 Comment
  UC426922  Angelica breweri E. B. Copeland 1930-7-21 429 Butte Jonesville 1650 Comment
  CHSC6060  Anisocarpus madioides E. Parreno 1968-5-13 107 Butte Roadside of Upper Bidwell Rd. ca. 25 m from Devil's Kitchen. Comment
  UCD129052  Anthemis cotula A. A. Heller 1914-7-18 11479 Butte near Durham. Comment
  RSA518695  Antirrhinum leptaleum L. Ahart 1990-10-5 6630 Butte Below the high water line of Lake Oroville, about 0.25 mile south-west of the Enterprise Bridge across Lake Oroville. 267 Comment
  SEINET10547631  Antirrhinum vexillocalyculatum subsp. intermedium Mary Susan Taylor 1979-6-22 Taylor 2169 Butte T22N R5E sw 1/4 sec 32. Pulga bridge on Hwy 70, on N side of trail leading from NE side of the bridge, ca. 27 mi N of Oroville; serpentine soils. 488 Comment
  CHSC28753  Aphanes occidentalis J. D. Jokerst 1979-3-18 172 Butte 200 met. N.W. of Hwy 32, 7.7 mi. E. of Chico, top of ridge. 365 Comment
  SD261367  Aphyllon epigalium subsp. epigalium K. D. Cox 1974-6-1 188 Butte Found in yard at 1332 Elliott Rd., Paradise Ca. 609 Comment
  CHSC111362  Aphyllon purpureum Lowell Ahart 2012-5-4 17987 Butte On damp dark rocky soil, on and around basalt on a steep slope, about 200 feet south of stream in Beatson Hollow, about 1 1/4 mile northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 286 Comment
  CHSC115363  Aphyllon purpureum Lowell Ahart 2015-3-14 19955 Butte On steep basalt slope, on the south side Beatson Hollow, south of where the small stream flows into the stream on the bottom of Beatson Hollow, about 1 1/4 miles (air) northwest of Cherokee Road, about 7 miles (air) north of Oroville. 302 Comment
  UC426935  Apocynum androsaemifolium E. B. Copeland 1930-7-7 442 Butte Jonesville 1650 Comment
  CHSC94614  Apocynum cannabinum Lowell Ahart 2006-9-11 13272 Butte Gravel bar, south side of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville. 431 Comment
  SEINET10873858  Apocynum pumilum Mary Susan Taylor 1975-6-30 Taylor 812 Butte Ca. 500 yds E of Cohasset Hwy, behind Greenwood Store, Cohasset, ca. 18 mi NE of Chico; Yellow Pine Forest. 853 Comment
  UC600707  Arabis rectissima var. rectissima H. F. Copeland 1931-6-10 1518 Butte gulch draining into Colby Canyon Jonesville 1524 Comment
  CAS-BOT-BC167246  Aralia californica Clarence R. Quick 1952-7-1 52 -116 Butte Mill Creek Road between Feather River Highway and Coyote Gap Comment
  CHSC23403  Arbutus menziesii M. S. Taylor 1976-3-6 1007 Butte Ca. 50 ft E of Lumpkin Rd, ca. 1 mi NE of Forbestown Rd, ca. 12 miles E of Oroville. Comment
  UCD101990  Arceuthobium campylopodum D. Sanchez-Mata; P. Rodriguez-Rojo 1997-8-16 s.n. Butte Magalia near Magalia Reservoir. 680 Comment
  UCD52160  Arctostaphylos manzanita John Thomas Howell 1975-6-15 51097 Butte In Upper Sonoran Zone on volcanic rock; about 2 miles from Paradise on 'Skyway' to Chico. 396 Comment
  UCD52243  Arctostaphylos manzanita John Thomas Howell 1976-4-2 51563 Butte In Upper Sonoran Life Zone on volcanic rock; about 2 miles from Paradise on 'Skyway' to Chico. 396 Comment
  CAS-BOT-BC24409  Arctostaphylos manzanita subsp. manzanita John Thomas Howell 1976-4-2 51567 Butte About 2 mi. from Paradise on Skyway to Chico. 396 Comment
  CAS-BOT-BC38873  Arctostaphylos manzanita subsp. manzanita A. A. Heller 1940-2-4 15487 Butte 1 mile west of the Spring House on the Neal Road to Paradise. Comment
  CHSC21280  Arctostaphylos manzanita subsp. manzanita M. S. Taylor 1974-4-22 255 Butte Ca. 50 ft E to Cohasset Hwy, ca. 2 mi N of Cohasset. 762 Comment
  CHSC21775  Arctostaphylos manzanita subsp. manzanita Robert A. Schlising 1974-9-17 3157 Butte Along Hwy 32, 9.4 mi NE of junction with Hwy 99 in Chico. Comment
  CAS-BOT-BC24251  Arctostaphylos mewukka Lowell Ahart 1985-2-17 4840 Butte Near Kunkle Res., about 2 mi. s. of Paradise. 550 Comment
  UC725979  Arctostaphylos mewukka A. A. Heller 1942-1-18 16349 Butte Pentz-Magalia Rd one mi e Bille Road; Paradise Comment
  UC726237  Arctostaphylos mewukka A. A. Heller 1940-2-6 15489 Butte Neal Rd at Game Refuge above Bowle's Mansion; Paradise Comment
  JEPS119541  Arctostaphylos mewukka subsp. mewukka Lowell Ahart 2012-1-12 17735 Butte Peter Ahart Ranch, about 1 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles southeast of Oroville. Comment
  CAS-BOT-BC38527  Arctostaphylos mewukka subsp. truei John Thomas Howell 1975-6-15 51109 Butte Paradise. Skyway just ne. of Billie Rd. 609 Comment
  CHSC90965  Arctostaphylos nevadensis L. P. Janeway; Matt Brown, Samantha Mackey Hillaire 2005-5-11 8387 Butte Northern High Sierra Nevada. Plumas National Forest; upper slope overlooking Lockerman Creek, 0.5 km east of Lockerman Creek and 2.3 km north-northeast of its confluence at Camp Creek. 1250 Comment
  UCD51949  Arctostaphylos truei John Thomas Howell 1975-6-15 51092 Butte In Upper Sonoran Zone on volcanic rock, about 2 miles from Paradise on 'Skyway' to Chico, Butte County. Comment
  SEINET11989217  Arctostaphylos truei J. T. Howell 1975-1 51090 Butte about 2 mi from Paradise on Skyway to Chico 396 Comment
  UCD52618  Arctostaphylos viscida John Thomas Howell 1975-6-15 51106 Butte Paradise, Butte County. Transition Zone. Billie Road at Cliff Drive. 609 Comment
  CAS-BOT-BC48252  Arctostaphylos viscida subsp. viscida Carl B. Wolf 1937-3-29 8339 Butte Sierra Nevada Foothills, 3 1/2 mi. below Magalia on Oroville Road. 487 Comment
  CHSC38436  Arctostaphylos viscida subsp. viscida Vernon Oswald 1983-2-14 70 Butte Upper Bidwell Park, Chico, on the S side of Upper Park Rd. just e of the intermittent stream located 0.8 mi E of the power lines. 115 Comment
  CHSC84407  Aristida dichotoma Lowell Ahart 2003-7-30 10461 Butte On the north side of Bean Creek Road, about 1/2 mile southeast of Little Bald Rock, about 2 1/2 miles (air) southeast of Brush Creek. 1000 Comment
  CHSC30863  Aristolochia californica J. D. Jokerst 1979-3-23 1159 Butte Top of North Table Mt., W edge of Mt, immediately N of the waterfalls of the S fork of Coal Cr Canyon. 365 Comment
  UC176145  Aristolochia californica A. A. Heller 1913-3-9 10687 Butte hills 2 mi. n. of Oroville Comment
  UCD129196  Arnica dealbata E. B. Copeland 1929-7-18 399 Butte Jonesville. 1550 Comment
  CAS-BOT-BC82412  Arnica discoidea Helen M. Edwards 1917-6-1 s.n. Butte De Sabla Comment
  CHSC45632  Arnica mollis Vernon H. Oswald 1985-7-2 1878 Butte Scotts John Creek 0.6 mi N of the road connecting Humboldt and Humbug Rds. 1780 Comment
  CHSC94006  Arnica mollis R. Fischer 2005-9-5 669 Butte Location about 4 road miles east of Jonesville adjacent to county road 26N11, ca. 1 mile north of Humboldt Road. Plants growing along Scotts John Creek in an area of mixed pine and fir forest. 1737 Comment
  RSA0039299  Artemisia douglasiana Lowell Ahart 2008-7-23 15150 Butte On the north side of Ponderosa Way, north of the waterfall, about 1 mile (air) southwest of the Ponderosa Dam, about 2 1/4 miles (air) northwest of Forbestown. 482 Comment
  SD5837  Artemisia douglasiana E. B. Copeland 1930-7-27 Butte Jonesville 1550 Comment
  CAS-BOT-BC93885  Artemisia dracunculus Lowell Ahart 1987-8-3 5850 Butte Along the North Fork of the Featehr River, near Poe Power House, about 2 miles southeast of Jarbo Gap. 271 Comment
  CAS-BOT-BC400633  Asarum hartwegii A. A. Heller 1915-4-12 11809 Butte Near Cohasset Comment
  CAS-BOT-BC400634  Asarum hartwegii A. A. Heller 1915-4-12 11809 Butte Near Cohasset Comment
  CAS-BOT-BC400632  Asarum hartwegii Helen M. Edwards 1917-6-1 s.n. Butte De Sabla Comment
  CHSC2520  Asclepias cordifolia W. Fitzwater 1958-4-19 Butte Chico Canyon, Chico area. 365 Comment
  SFV10920  Asclepias cordifolia M. L. Vincent 1963-6-8 405 Butte Sierra Nevada Honey Run Road. West of Paradise. Comment
  CHSC40364  Asclepias fascicularis Lowell Ahart 1985-6-30 5074 Butte Along the road at the intersection of Forbestown Road and Black Bart Road, about 1 mile west of intersection with Robinson Mill Road. 609 Comment
  UCR219262  Asclepias fascicularis George K. Helmkamp, E. A. Helmkamp 2009-9-5 15591 Butte Sacramento Valley, Palermo Road 0.3 mi. east of its junction with CA-70, 6.1 mi. ENE (76 deg. ) of Biggs 58 Comment
  CHSC28669  Asclepias speciosa S. Posner 1972-10-12 Butte Upper Bidwell Park, North bank Chico Creek. Vicinity of Archery Range. Chico. Comment
  SEINET10529842  Aspidotis californica Mary Susan Taylor 1981-5-4 Taylor 3604 Butte Brush Creek quad. Ca. 1/8 mi SW of 2lN80, S side of spur rd near plantation, ridge S of Galen Ridge, ca. 3 mi SW of Brush Creek. 914 Comment
  CAS-BOT-BC65908  Aspidotis densa E. B. Copeland 1929-7-13 328 Butte Jonesville 1700 Comment
  CHSC25358  Aspidotis densa Marc P. Hayes 1977-4-22 8 Butte Ca. 0.8 km sw of Pulga, 120 m n of North Fork of Feather River, along Pulga Rd., ca. 100 m from junction with Hwy 70. 495 Comment
  CHSC64265  Aspidotis densa H. H. Schmidt; M. Merello, L. Woodruff 1993-6-15 870 Butte Plumas National Forest. On state road 23N06 ca. 3 miles N of the junction with highway 70. 1010 Comment
  RSA4658  Aspidotis densa E. B. Copeland 1929-7-13 328 Butte Jonesville 1700 Comment
  POM219492  Aster eatonii H. F. Copeland 1927-9-2 407 Butte Jonesville. Comment
  SEINET10474436  Aster oregonensis subsp. californicus Lowell Ahart 1985-8-15 Ahart 5165 Butte In an area where serpentine is covered with shallow red rocky soil, 50 yards south of the road to the Forbestown, Res., about 2 1/2 miles north-east of Forbestown. Comment
  CHSC42026  Aster radulinus Lowell Ahart 1986-8-15 5382 Butte North of the dirt road, about 1/2 mile southwest of Bald Mountain, about 4 1/2 miles northeast of Stirling City. 1615 Comment
  CHSC48130  Aster radulinus Vernon H. Oswald 1985-9-5 1940 Butte Forbestown Reservoir Rd. 2.9 mi NE of Forbestown Rd. 807 Comment
  CHSC40307  Astragalus gambelianus Ahart; Jokerst 1985-5-10 4962 Butte 1/2 mile south of Box Hall Flat, about 1 mile east of Potter Ravine, about 2 and 3/4 miles north-east of Oroville Dam. 320 Comment
  CHSC45903  Astragalus gambelianus Lowell Ahart 1981-4-24 2789 Butte Near North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  UC204731  Astragalus pauperculus A. A. Heller 1914-4-13 11286 Butte Chico-Oroville road 11 mi from Chico; 11 mi from Chico Comment
  UC862994  Astragalus pauperculus A. A. Heller 1938-4-3 15013 Butte n Oroville (treeless summit Table Mountain); n of Oroville, summit Table Mountain 304 Comment
  SEINET10452232  Astragalus pauperculus Mary Susan Taylor 1984-4-6 Taylor 5410 Butte T22N R4E nw sec 3l. Ca. 0.5 mi N of Kunkle Reservoir, on E side of Pentz-Magalia Hwy, ca. 3 mi S of Paradise. Comment
  SEINET10532293  Athyrium filix-femina var. californicum Mary Susan Taylor 1977-7-15 Taylor 1422 Butte Along West Branch of the Feather River, ca. 1 mi E of the Skyway, ca. 1 mi N of Magalia. Riparian Woodland. 678 Comment
  CHSC34238  Athyrium filix-femina var. cyclosorum M. S. Taylor 1981-4-28 3568 E Butte On Four Trees Rd, ca. 1/2 mi e of Hwy 70, ca. 2 mi ne of Pulga. 701 Comment
  JEPS94925  Athyrium filix-femina var. cyclosorum Lowell Ahart 1997-8-1 7765 Butte about 1/4 mi e Table Mountain (on e side of creek, where basalt is eight sided, about 8 air mi ne of Stirling City); Snow Meadow, Little Kimshew Creek 1524 Comment
  UC1594560  Athysanus pusillus Lowell Ahart 1992-3-9 6736 Butte about 1/6 mi e of Enterprise Boat Launch Area (about 1/2 mi nw of the Enterprise Bridge across Lake Oroville); Lake Oroville 274 Comment
  CHSC34124  Atriplex lentiformis L. Ahart 1981-9-10 3144 Butte Near the entrance to the Gray Lodge Waterfowl Mgmt HQ, w of Pennington Rd, ca. 12 mi sw of Gridley. 35 Comment
  UCD97614  Atriplex prostrata L. Ahart 1982-10-11 3855 Butte west of check-in station, Graylodge Wildlife Refuge, 12 miles SW of Gridley. Comment
  CHSC31391  Avena barbata J. D. Jokerst 1979-4-13 1200 Butte Top of North Table Mt in the vicinity of Coal Cr Canyon. 396 Comment
  UC203847  Avena barbata A. A. Heller 1914-3-18 11207 Butte along small stream 8 mi n Oroville (near w base of Table Mt.) Comment
  SEINET11689137  Avena barbata Unknown 1980-1 s.n. Butte 0.5 mi N of the airport turn-off on Cohasset rd, N of Chico city limits 76 Comment
  JEPS110442  Avena fatua Lowell Ahart 2005-12-11 12515 Butte On the sides of small ditches, on the Rice Experiment Station, between the Main Ditch and Stine Lateral, on the north side of Hamilton Road, about 1/4 mile east of Riceton Highway, about 2 1/4 miles (air) east of Biggs 30 Comment
  JEPS117709  Avena fatua Lowell Ahart 2010-5-7 16629 Butte On both sides of Guardian Trail, about 1/2 mile west of Highway 32, Upper Bidwell Park, about 4 1/2 miles (air) northeast of Chico 246 Comment
  CHSC46165  Azolla filiculoides Lowell Ahart 1981-9-27 3214 Butte About 1/8 mile north-east of the intersection of Lower Wyandotte Road and Upper Palermo Road, about 4 miles north-east of Palermo. 73 Comment
  SEINET11842155  Baccharis pilularis subsp. consanguinea D. R. Fisher 1981-1 20 Butte Singer Creek, ca 1 km W of hiway 99, 16 km N of Chico 58 Comment
  CHSC84645  Baccharis salicifolia Matt Quinn 2001-4-24 58 Butte Found on gravel bar along Big Chico Creek, at Day Camp beach, in Upper Bidwell Park. 94 Comment
  CHSC113982  Bacopa rotundifolia Lowell Ahart 2014-10-14 19882 Butte Open area in a rice field, Peter Ahart Ranch, about 2-1/4 miles north and 1/4 mile east of Honcut, about 12 miles south of Oroville. 29 Comment
  CAS-BOT-BC106428  Balsamorhiza sagittata A. A. Heller 1915-6-16 12026 Butte Summit of the Sierra Nevada above Jonesville, on the summit of a ridge 2133 Comment
  CHSC50099  Balsamorhiza sagittata Vernon Oswald 1990-5-12 4203 Butte Jonesville-Butte Creek House Trail, along the section between Scotts John Creek and Willow Creek. 1676 Comment
  CHSC20900  Barbarea orthoceras M. S. Taylor 1975-8-31 892 Butte On Ernies Island in Butte Creek, ca. 50 ft s of Humboldt Rd, ca. 1/2 mi e of Butte Meadows. 609 Comment
  CHSC38266  Berberis aquifolium var. dictyota Vernon Oswald 1983-5-11 473 Butte Upper Bidwell Park, Chico, near rim rock on the brush-covered slope s of the Police Pistol Range at the Golf Course. 146 Comment
  SFV1330  Berberis aquifolium var. repens M. L. Vincent 1961-3-31 12 Butte Sierra Nevada Paradise. 0.5 miles west of Harrison and Stearns roads. 530 Comment
  CHSC112541  Bergia texana B. Castro 2012-9-2 1984 Butte Sycamore Creek Sediment Removal Project: Revegetation Phase. Sacramento Valley. At N end of Chico, just S of the Chico Airport, along Sycamore Creek, ca 600 ft downstream (W) of its crossing under the Cohasset Hwy bridge. 57 Comment
  CHSC110394  Bidens frondosa Lowell Ahart 2012-9-28 18468 Butte Gravel bar in the middle of Big Chico Creek, about 30 yards east of the freeway, Lower Bidwell Park, Chico. 65 Comment
  CHSC30414  Bidens frondosa M. Merryman 1979-9-23 50 Butte SW of Chico, just E of Ord Ferry and Sacramento River. 30 Comment
  JEPS108975  Bidens frondosa Lowell Ahart 2006-9-11 13274 Butte South edge of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville 431 Comment
  JEPS119942  Bidens frondosa Lowell Ahart 2012-9-28 18458 Butte Just east of the east end of Sycamore Pool in Big Chico Creek, Lower Bidwell Park, Chico. Comment
  NY31002  Blennosperma californicum A. A. Heller 1914-2-16 11180 Butte Hills twelve miles from Chico on the Chico-Oroville road Comment
  RSA20872  Blennosperma nanum C. B. Wolf 1937-3-29 8333 Butte Sacramento Valley, 1/2 mile SE of Butte Creek on Chico-Oroville Rd 58 Comment
  CAS-BOT-BC100692  Blennosperma nanum var. nanum Lowell Ahart 1975-4-2 s.n. Butte Honcut 45 Comment
  JEPS119678  Blennosperma nanum var. nanum Lowell Ahart 2012-5-4 17988 Butte About 1 1/4 miles northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  CHSC113241  Boechera breweri subsp. shastaensis Lowell Ahart 2014-4-20 19388 Butte Near the top of rim cliffs, about 30 yards west of the small drainage, about 80 yards southwest of a small falls, about 3/4 mile northwest of parking area on the west side of Cherokee Road, about 7 miles (air) north of Oroville. 378 Comment
  UC726942  Boechera breweri subsp. shastaensis A. A. Heller 1920-3-28 13359 Butte Ten Mile House Comment
  CHSC33406  Boechera platysperma R. E. Preston 1981-7-8 101 Butte 10 m w of Scotts John Creek, ca. 1.0 km e of Humboldt Peak. 1928 Comment
  CHSC58892  Boechera platysperma Lowell Ahart 1992-7-26 6841 Butte West of a small stream, on the south side of Coon Hollow, about 1/2 mile north of the Carr Mine, about 2 miles (air) south of Snow Mountain. 1767 Comment
  CAS-BOT-BC14633  Boechera rectissima E. B. Copeland 1929-7-14 367 Butte Jonesville. 1550 Comment
  SEINET10453127  Boisduvalia densiflora Mary Susan Taylor 1978-7-18 Taylor 1687 Butte On N side of Old Humboldt Road in open gravelly-rocky area in Yellow Pine Forest, ca. 1 mi E of junction of Old Humboldt Road and Hwy 32, ca. 5 mi W of Butte Meadows. 1326 Comment
  SEINET10939933  Boisduvalia densiflora Mary Susan Taylor 1974-10-11 Taylor 333 Butte Along Sacramento River, in vicinity of the washout on River Road, ca. 10 mi W of Chico. Riparian Woodland. 61 Comment
  UC955482  Botrychium multifidum Mrs. Carlotta C. Hall 1914-7-30 9820 Butte Jonesville, E of Stephen's Hotel 1554 Comment
  CHSC48890  Boykinia major Vernon Oswald 1985-7-21 1910 Butte Near the bridge over the W. Branch of the Feather R., ca. 1 air mi ne of Inskeep. 1341 Comment
  CAS-BOT-BC36721  Brassica rapa Lowell Ahart 1983-2-21 3903 Butte Peter Ahart Ranch. About 2.5 miles north and 0.75 mile east of Honcut. 40 Comment
  CDA10540  Brickellia californica D. G. Kelch 2006-8-2 6 .348 Butte Along Butte Creek, north of Durham-Dayton Hwy. Comment
  CHSC6716  Briza minor V. Hagaman 1968-4-19 479 Butte Cherokee Village ca 200 yards E. of cemetary. Comment
  CAS-BOT-BC482217  Brodiaea californica subsp. californica A. A. Heller 1914-5-11 11389 Butte Hills 8 miles north Oroville Comment
  UCD77145  Brodiaea coronaria Robert E. Preston 2003-5-11 2134 Butte Chico, Upper Bidwell Park, ca. 0.2 mi NE of jct Wildwood Ave. and Upper Park Rd 83 Comment
  CHSC39543  Brodiaea elegans Lowell Ahart 1983-6-6 4028 Butte Peter Ahart Ranch, about 2 miles north and 1/4 mile east of Honcut. 50 Comment
  SEINET194883  Brodiaea minor A. A. Heller 1927-5-3 14364 Butte Ten miles north of Chico Comment
  SEINET10534140  Brodiaea purdyi Mrs. R. M. Austin 1896-1 Austin 816 Butte Mesa-east of Chico Comment
  SEINET10534142  Brodiaea purdyi R. M. Austin Austin 32 Butte Sutton House Comment
  CHSC92936  Brodiaea sierrae L. P. Janeway 2005-7-16 8497 Butte Northern High Sierra Nevada. On Rocky Ridge, along Rim Road (Ponderosa Way); about 1.3 km south of Batchelor Point. Near ridgetop. 927 Comment
  CHSC61530  Bromus carinatus Lowell Ahart 1993-6-16 6964 Butte South-west of the intersection of Black Bart Road and Forbestown Road, about 3 1/2 (air) miles south-west of Forbestown. 609 Comment
  JEPS106169  Bromus carinatus var. carinatus Lowell Ahart 2004-6-22 11115 Butte On the north side of Doe Mill Road, about 100 yards southwest of the bridge across Butte Creek, about 2 miles (air) southeast of Forest Ranch, about 5 miles (air) west of Stirling City 692 Comment
  CDA13294  Bromus ciliatus G. F. Hrusa, T. D. Wilfred 1996-7-9 13142 Butte Plumas National Forest; Above Jordan Creek S of Hwy 162 near Roger's Cow Camp. Comment
  CHSC66172  Bromus commutatus Vernon H. Oswald; Lowell Ahart 1996-5-27 7660 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. On the S side of the levee road at the SW corner of Tract 3.4, Sanctuary II. 32 Comment
  JEPS104210  Bromus commutatus Lowell Ahart 2003-5-27 10222 Butte About 100 yd w of the dirt road, w of Diversion Dam on Big Chico Creek, w of Parking Area L, Upper Bidwell Park, ca 3 1/2 mi e of Manzanita Avenue, Chico. 121 Comment
  CHSC56624  Bromus diandrus T. B. Devine 1980-3-10 605 Butte Chico Sewage Treatment Plant. Comment
  HSC32411  Bromus diandrus Dave Knorr 1974-4-20 120 Butte On Pentz Rd. near intersection with Clark Rd. Comment
  CHSC36546  Bromus hordeaceus L. Ahart 1982-6-4 3549 Butte On a lava cap, 1.5 mi e of Camp 18, ca. 8 mi e of Feather Falls. 1000 Comment
  JEPS115956  Bromus hordeaceus Lowell Ahart 2009-4-26 15638 Butte On the west side of Guardians Trail, just south of Pine Trail, Upper Bidwell Park, about 3/8 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  RSA725192  Bromus hordeaceus L. P. Janeway 2006-4-30 8567 Butte Cascade range Foothills. East edge of city of Chico; northwest side of Humbolt Road 2.4 km northeast of Bruce Road. 149 Comment
  CAS-BOT-BC162454  Bromus laevipes John Thomas Howell 1962-6-15 37495 Butte Sierra Nevada. Magalia. 731 Comment
  CAS-BOT-BC162467  Bromus laevipes Lowell Ahart 1982-9-13 3806 Butte Sierra Nevada. Along the edges of a small wash that flows into Pinkard Creek, ca. 1/8 mile north of the Lost Creek Res. Dam, ca. 2.15 miles northwest of Strawberry Balley. 1100 Comment
  CHSC39523  Bromus laevipes Lowell Ahart 1983-6-21 4058 Butte On the cut-bank along Bloomer Hill Road, 1/8 mile west of the Oroville Quincy Highway, 1 1/4 miles south of the Berry Creek School, north-east of Oroville. 400 Comment
  SEINET10520252  Bromus laevipes Lowell Ahart 1977-5-2 Ahart 1347 Butte On dry rocky soil and around large rocks on the sides of North Honcut Creek. Uncommon in this area. Peter Ahart Ranch, Honcut. Foothill Woodland. 50 Comment
  CHSC49522  Bromus madritensis subsp. madritensis Vernon Oswald 1985-4-29 1727 Butte Oroville-Quincy Hwy 1.9 mi s of Bidwell Bar Bridge. 316 Comment
  CHSC101324  Bromus madritensis subsp. rubens Lowell Ahart 2009-4-17 15557 Butte South slope of a ridge, about 300 yards west of Highway 32, near the south boundary, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 351 Comment
  UCR143553  Bromus marginatus H. F. Copeland 1930-7-20 1345 Butte Jonesville 1524 Comment
  UCD59586  Bromus rubens Mrs. C. C. Bruce 1896-4-1 42 Butte East of Chico. Comment
  UCD80527  Bromus rubens CNPS SN Foothill Team 2005-5-6 SNFN 0160 a Butte City of Chico, Upper Bidwell Park, on the northwest side of Upper Park Road, directly across from parking area 'M. 149 Comment
  SEINET10507343  Bromus sterilis Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4238 Butte T22N R6E sw sec 36. Ca. 0.5 mi e of Milsap Bar, ca. 25 mi ne of Oroville. Yellow Pine Forest; 500 m. 500 Comment
  UCR115097  Bromus suksdorfii G. Fred Hrusa, T. D. Wilfred 1996-7-9 13139 Butte Sierra Nevada Mtns., Plumas National Forest. Above Jordan Creek, south of Hwy 162 near Roger's Cow Camp 1250 Comment
  CHSC105533  Calamagrostis canadensis Lowell Ahart 2010-9-21 17222 Butte On damp soil, open meadow, about 10 yards east of poor dirt road, 200 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrood Reservoir. 1917 Comment
  CHSC49525  Calamagrostis canadensis Vernon Oswald; Lowell Ahart 1987-7-1 3059 Butte Scotts John Creek 1.3 mi n of the road connecting Humboldt and Humbug Rds, ca. 2.5 mi ene of Jonesville. On the edge of the creek. 1813 Comment
  CHSC97379  Callitriche heterophylla var. bolanderi Paul Maslin 2006-5-3 37 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). UTM: 10609374E 4410375N. 342 Comment
  CHSC113215  Callitriche heterophylla var. heterophylla Lowell Ahart 2014-4-26 19415 Butte Sides of a cleaned ditch, on the south side of Butte City Highway (Highway 162), collected from the railroad to the east about 200 yards, east of the Rice Experimental Station. 30 Comment
  CHSC103742  Callitriche marginata Lowell Ahart 2010-5-16 16687 Butte About 1/4 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 371 Comment
  JEPS117624  Callitriche marginata Lowell Ahart 2010-5-22 16711 Butte South of the road, about 120 yards east of the fence, about 220 yards east of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville 379 Comment
  CHSC31419  Calocedrus decurrens L. Ahart 1980-9-10 2623 Butte Along the edge of Bean Creek Rd, ca. 1 mi se of Little Bald Rock, ne of Oroville. 335 Comment
  HSC38016  Calochortus albus Thomas W. Nelson, Jane P. Nelson 1976-5-10 2476 Butte S facing slope beside Hwy. 191, 1 mi. W of Paradise Comment
  CAS-BOT-BC487815  Calochortus coeruleus Lowell Ahart 1973-5-28 s.n. Butte South and East of La Porte 1371 Comment
  CAS-BOT-BC487816  Calochortus coeruleus Lowell Ahart 1970-5-19 s.n. Butte Along Doon Grade, near Paradise 914 Comment
  CAS-BOT-BC489922  Calochortus leichtlinii Lowell Ahart 1982-6-4 3551 Butte About 8 miles east of Feather Falls. 304 Comment
  SEINET10469592  Calochortus leichtlinii Mary Susan Taylor 1980-8-2 Taylor 3208 Butte T27N R5E center sec 32, Jonesville quad. Humboldt Peak, N tip of the county. 2155 Comment
  CHSC4581  Calochortus luteus C. Glascock 1965-5-16 384 Butte 1/2 mi. e of Oro-Bangor Hwy on Foothill Blvd, Oroville. Comment
  CHSC75414  Calochortus luteus Jennifer Slater 1997-4-27 38 Butte At the Wurlitzer addition of the Vina Plains Preserve, west of Highway 99, approx. 10 miles north of Chico. 67 Comment
  CHSC79619  Calochortus luteus Leanna Brown; Shirley Innecken 1999-5-3 79 Butte Vista La Mesa Dr. 428 Comment
Read comments
Jul 24 2008
  CAS-BOT-BC491845  Calochortus luteus David D. Keck 1933-5-31 2416 Butte 5 miles east of Oroville on road to Bangor Comment
  CAS-BOT-BC491846  Calochortus luteus Grace Kermode 1899-5-30 s.n. Butte Centerville Comment
  SEINET12044178  Calochortus luteus L. S. Rose 1931-1 s.n. Butte Coast Ranges and foothills of Sierra Nevada Comment
  UCSB63609  Calochortus luteus McKirahan, Kim 1986-4-13 Butte Ca. 46 miles north of Horseshoe Lake in upper Bidwell Park, Richardson Springs; quadrangle, nw 1/4 of sw 1/4 Sec 8,T23N,R1W 137 Comment
  CHSC101328  Calochortus monophyllus Lowell Ahart 2009-4-22 15597 Butte West side of Guardians Trail, about 100 yards north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  CHSC84919  Calochortus monophyllus Janice Morris 1995-4-24 91 Butte Ca. 1/2 mi. s of Mud Creek, 1/2 mi e of Richardson Springs Resort. 304 Comment
  CDA15391  Calochortus tolmiei G. F. Hrusa 1997-4-3 13689 Butte Sierra Nevada; Immed. above Paradise Lake dam along Old Railroad Grade Rd., approx. 3 m. N of Magalia. Comment
  CHSC116973  Calochortus tolmiei Danielle Gee 2013-4-27 Butte Detlow Road, about 20 yards off Hwy 70, along road cut. 642 Comment
  RSA21533  Calochortus tolmiei Carl B. Wolf 1937-5-17 8719 Butte Northern Sierra Nevada. Road from De Sabla to Humboldt Road, 2.2 mi. W. of Big Butte Creek 762 Comment
  RSA394720  Calochortus tolmiei Carl B. Wolf 1937-5-17 8719 Butte Northern Sierra Nevada. Road from De Sabla to Humboldt Road, 2.2 mi. W. of Big Butte Creek 762 Comment
  SEINET12046803  Calochortus tolmiei T. R. Norton 1977-1 10 Butte ca 5 mi NE of Paradise, 0.8 mi N of Magalia, 0.25 mi NE of Skyway, 1mi SE of Magalia Reservoir 671 Comment
  CHSC53699  Caltha leptosepala var. biflora Kirsten Tarp 1983-8-12 346 Butte Philbrook Reservoir. Near streamlet in meadow. 1706 Comment
  UC596512  Calycadenia fremontii R. F. Hoover 1937-5-19 2244 Butte 10 mi nw of Chico Comment
  CAS-BOT-BC273291  Calycadenia fremontii David D. Keck 1933-5-31 2408 Butte Bridge crossing Mud Creek, 2.9 miles west of Richardson Springs Comment
  CAS-BOT-BC106097  Calycadenia oppositifolia A. A. Heller 1914-5-22 11426 Butte About 5 miles north of Chico on the Richardson Springs Road Comment
  CHSC38331  Calycadenia oppositifolia Vernon Oswald 1983-5-18 504 Butte Upper Bidwell Park, Chico, 300 ft N of Upper Park Rd. and 2.4 mi E of the power lines. 243 Comment
  CHSC44060  Calycadenia oppositifolia L. P. Janeway 1988-5-30 2720 Butte Cyn of Big Chico Cr; Upper Bidwell Park, along Upper Park Rd 4.3 mi from Wildwood Ave. 228 Comment
  JEPS22852  Calycadenia oppositifolia A. A. Heller 1938-5-22 15108 Butte near Chico airport Comment
  CAS-BOT-BC275389  Calycadenia truncata var. truncata Lowell Ahart 1980-7-4 2449 Butte Near Hurleton 600 Comment
  CAS-BOT-BC275387  Calycadenia truncata var. truncata Lowell Ahart 1980-7-20 2468 Butte Near the Suspension Bridge, Lake Oroville 330 Comment
  CHSC35975  Calyptridium monospermum M. S. Taylor 1982-6-24 4743 Butte Disturbed soils in meadow at Rag Dump 5, ca. 2 mi n of Flea Mt, ca. 10 mi n of Jarbo Gap on Hwy 70. 1158 Comment
  UC600489  Calyptridium umbellatum H. F. Copeland 1931-6-11 Butte Jonesville, Butte Creek Meadows Butte Creek Meadows; Jonesville, Butte Creek Meadows 1828 Comment
  CHSC46784  Calystegia occidentalis R. A. Schlising 1983-6-9 4424 Butte Along Hwy 32, 0,8 miles S of Nopel Road crossroad in Forest Ranch. Comment
  POM71019  Calystegia occidentalis subsp. occidentalis C. C. Bruce 1897-05 2039 Butte Little Chico. Comment
  UC843746  Camassia quamash A. A. Heller 1915-6-11 11959 Butte Butte Meadows in the Sierra Nevada Butte Meadows; Sierra Nevada, Butte Meadows 1219 Comment
  RSA699700  Campanula prenanthoides L. Ahart 2004-7-11 11247 Butte On the southeast edge of Paradise Lake, about 3/4 mi. northeast of the picnic area, about 1 mi. northeast fo Paradise Dam, about 4 mi. (air) southwest of Stirling City. Yellow Pine Forest. 815 Comment
  SEINET10462927  Campanula prenanthoides Conger 1907-1 CONGER s.n. Butte BRUSH CREEK Comment
  SEINET10463241  Campanula prenanthoides Carter 1965-7-6 Carter 276 Butte 1.4 miles north of Mountain House on Oroville-Quincy road on east bank above road 914 Comment
  UC1609329  Campanula scouleri Lowell Ahart 1993-7-22 7078 Butte in campground on w side bridge across Fall River (about 6 air mi ne of Feather Falls) 1036 Comment
  JEPS103602  Capsella bursa-pastoris Lowell Ahart 2002-3-2 9415 Butte Along the sides of a dirt road by a rice field, W of the Midway, ca 1 mile N of Richvale. 30 Comment
  JEPS119515  Capsella bursa-pastoris Lowell Ahart 2012-3-2 17766 Butte About 100 yards west of Guardian Trail, about 1/2 mile west of Highway 32, about 7 1/2 miles northeast of Chico. Comment
  UC600711  Cardamine breweri H. F. Copeland 1929-6-9 1251 Butte Jonesville 1524 Comment
  POM95848  Cardamine californica var. integrifolia C. C. Bruce 1897-02 1944 Butte Little Chico Comment
  CHSC10623  Cardamine oligosperma Lowell Ahart 1967-3-30 Butte Peter Ahart Ranch, Honcut. 42 Comment
  CAS-BOT-BC37879  Cardamine oligosperma Lowell Ahart 1979-4-3 s.n. Butte Honcut. Peter Ahart Ranch. Near edges of North Honcut Creek. 50 Comment
  SEINET10448559  Cardamine oligosperma Mary Susan Taylor 1979-3-31 Taylor 1966 Butte On property belonging to Deanne Lickey; along Ishi Trail Road, ca. 0.5 mi NE of Concow Road and Lake Concow, ca. 25 mi N of Oroville; Yellow Pine Forest; granite soils. 671 Comment
  CHSC104817  Carduus pycnocephalus Lowell Ahart 2010-6-1 16749 Butte Along Centennial Avenue, about 100 yards east of Chico Canyon Road, on the south side of Big Chico Creek, Upper Bidwell Park, Chico. 71 Comment
  CAS-BOT-BC18212  Carex Lowell Ahart 1985-6-30 5078 Butte East of the dirt road to the Forbestown Res., about 2.5 miles northeast of Forbestown. 868 Comment
  CHSC52280  Carex abrupta L. P. Janeway 1987-7-4 2426 Butte NW-facing slopes above Last Chance Cr; along road to Jnes Meadow 9.6 mi from Inskip. 1676 Comment
  CHSC92355  Carex abrupta Robert F. C. Naczi; Lawrence P. Janeway 2004-7-23 10504 Butte Ca. 3 mi SSE of village of Butte Meadows, along Coon Creek at its crossing by the Skyway (county road 51262). (WGS 84) 1551 Comment
  NY25081  Carex abrupta A. A. Heller 1913-6-7 10820 Butte West branch of the North Fork of the Feather River near Stirling 914.4 Comment
  CHSC113957  Carex angustata Lowell Ahart 2014-7-7 19579 Butte North of the bog, Coon Hollow, about 2 miles (air) north of Philbrook Reservoir. 1690 Comment
  JEPS105638  Carex angustata L. P. Janeway 2003-6-8 7823 Butte High Cascade Range. Flea Valley: meadow at head of Concow Creek 1091 Comment
  JEPS121995  Carex angustata Lowell Ahart 2014-7-13 19643 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  UCD140104  Carex angustata Robert E. Preston 1982-7-16 338 Butte Crane Valley, on streambank. 1584 Comment
  UC1594681  Carex athrostachya Lowell Ahart 1992-7-21 6805 Butte about 2 (air) mi ne Philbrook Reservoir (on the s side of Coon Hollow); Coon Hollow 1737 Comment
  UC600700  Carex athrostachya H. F. Copeland 1928-8-20 1063 Butte Jonesville 1524 Comment
  CHSC102721  Carex barbarae Lowell Ahart 2009-6-3 15825 Butte Meadow about 15 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 254 Comment
  CHSC52269  Carex bolanderi L. P. Janeway 1987-5-20 2086 Butte Canyon of North Fork Feather River; seep along Hwy 70, 0.3 mi N of Arch Rock Tunnel. 472 Comment
  SEINET10586772  Carex bolanderi Lowell Ahart 2010-6-12 Ahart 16796 Butte T22N, R2E, northwest 1/4 Section 35. About 150 yards east of Ten Mile House Road, about 3.4 mile (air) west of Highway 32, about 9 miles (air) northeast of Chico. 238 Comment
  SEINET7552591 Image available Carex bolanderi Robert F. C. Naczi, Anton A. Reznicek 2006-8-1 11403 Butte ca. 4 mi NE of community of Butte Meadows, ca. 0.1 mi N of Cherry Hill Campground, at crossing of small tributary of Butte Creek, W side of paved road. 1448 Comment
  CHSC100989  Carex brainerdii L. P. Janeway 2006-5-28 8646 Butte Northern High Sierra Nevada. 0.2 km east of Concow Road, 1.24 km north-northeast of Rag Dump, 4.3 km north of Flea Mountain. 1268 Comment
  CHSC52847  Carex brainerdii L. P. Janeway; R. A. Schlising, B. Castro 1988-7-30 3145 Butte SW-facing slope above Coon Hollow; along dirt road 0.8 mi NE of the creek. 1783 Comment
  JEPS121423  Carex cyrtostachya Peter F. Zika 2011-7-6 25536 Butte Pinkard Creek, below Mooreville Ridge Rosd, 1.2 road miles N of dam on Lost Creek Reservoir, northern Sierra Nevada Highlands (n SNH) Comment
  SEINET10785816 Image available Carex cyrtostachya Peter F. Zika 2011-7-6 Zika 25536 Butte Pinkard Creek, below Mooreville Ridge Road, 1.2 road miles N of dam on Lost Creek Reservoir, northern Sierra Nevada Highlands (n SNH). 1040 Comment
  CAS-BOT-BC34952  Carex densa J. D. Jokerst 1985-5-11 2325 Butte Ca. 0.5 mile south of Bax Hall Flat, 1 mile east of Potter Ravine, immediately north of Lake Oroville. Comment
  CHSC68373  Carex densa L. P. Janeway 1996-5-27 4984 Butte South side of Lunt Road, 300 ft east of Nelson Bar Road. Between Lunt Road and a branch of Hodapp Creek. 457 Comment
  UCR7845  Carex dudleyi Marilyn Malin 1968-4-19 245 Butte W side of Cherokee Road, c. 2 mi south of Cherokee, & 100 yards east of the Cherokee Graveyard 405 Comment
  CAS-BOT-BC19997  Carex feta A. A. Heller 1928-6-16 14620 a Butte Butte Meadows. Comment
  CHSC111132  Carex feta Lowell Ahart 2012-6-2 18138 Butte Along a small stream, west of a poor dirt road, about 40 yards north of Truex Road, about 1/8 mile northwest of the West Branch Bridge across Lake Oriville. 286 Comment
  CHSC71196  Carex feta Lowell Ahart 1998-6-9 7990 Butte Large seep, southwest of the lone oak tree, northwest of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  HSC96354  Carex feta L. P. Janeway 2003-6-8 7818 Butte Flea Valley, meadow at head of Concow Creek 1116 Comment
  UCR7833  Carex feta Marilyn Malin 1968-4-19 246 Butte W side of Cherokee Road, c. 2 mi south of Cherokee, & 100 yards east of the Cherokee Graveyard 405 Comment
  CAS-BOT-BC20004  Carex feta Lowell Ahart 1988-6-23 6065 Butte North of Forbestown Road, about .08 mile east of the intesection of Black Bart Road and Forbestown Road. 670 Comment
  CHSC113415  Carex fracta Lowell Ahart 2014-7-16 19678 Butte Northeast of a large wet meadow (some bog), about 50 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  JEPS115995  Carex fracta Lowell Ahart 2009-6-3 15826 Butte By a small wash, about 130 yards south of the fence and about 120 yards east of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 279 Comment
  UC532225  Carex fracta H. F. Copeland 1930-7-21 1367 Butte Jonesville 1524 Comment
  CHSC85918  Carex gracilior L. P. Janeway; Gavin Blosser, Adam Henderson 2003-4-10 7755 Butte Northern High Sierra Nevada. Near western end of peninsula between Middle and South Forks Feather River arms of Lake Oro-ville; 2.1 km east of the Bidwell Bar Bridge; next to Craig Saddle Boat-in Campground. 290 Comment
  JEPS105634  Carex gracilior L. P. Janeway, John Hunt 2003-5-8 7782 Butte Sacramento Valley. North end of Chico; along Sycamore Creek 160 m west of Cohasset Road bridge 56 Comment
  SEINET7485255 Image available Carex gracilior Peter F. Zika 2009-1 24509 Butte SE side of Concow Road at south end of Concow Reservoir, 3.7 road miles N of Route 70, Cascade Range Highlands (CaRH) 640 Comment
  SEINET4286140 Image available Carex infirminervia L. Janeway, Gog, L 2008-1 3193 B Butte Just east of Philbrook Resevoir. Comment
  CHSC45258  Carex laeviculmis L. P. Janeway 1988-6-16 2808 Butte Along Butte Cr 1.4 mi S of Humboldt Rd via the rd in the W side of the cyn. 1264 Comment
  HSC87069  Carex lemmonii L. P. Janeway 1987-6-27 2344 Butte Just E of Keyser Creek, 4.3 mi. N of Ramsey Bar along Concow Rd. 1479 Comment
  UC478550  Carex lemmonii E. B. Copeland 1929-7-5 Butte Jonesville 457 Comment
  SEINET7899355 Image available Carex lemmonii H. F. Copeland 1932-7-17 s.n. Butte vicinity of Jonesville, Lassen National Forest Comment
  CHSC3763  Carex multicaulis R. L. Adams 1964-4-12 87 Butte 1/2 mi. W. Ten Mile House, Highway 32 on N. side road. 8 mi. from Chico. Comment
  CHSC43900  Carex multicaulis L. P. Janeway 1987-6-5 2147 Butte Along the Peavine Cr road (22N39) 0.1 mi E of its beginning at French Cr. 640 Comment
  CHSC9145  Carex multicaulis R. J. Swift 1970-4-21 85 Butte Alongside of Skyway ca. 1.5 miles N.E. of Magalia. 670 Comment
  SEINET7568477 Image available Carex multicaulis Lowell Ahart 1987-5-11 5623 Butte North of the Forbestown Ditch along the dirt road, about 2 1/2 miles north-east of Forbestown. 853 Comment
  SEINET8469644 Image available Carex nervina L. Janeway, Gog, L 2008-1 3195 (A & B) Butte Just E of Philbrook Reservoir Comment
  UCD140541  Carex nervina L. P. Janeway; R. A. Schlising 1988-7-22 3056 Butte Coon Hollow Creek. 1920 Comment
  SEINET7569421 Image available Carex nudata L. P. Janeway 2003-5-11 7783 Butte Stirling City 7.5' quad. High Cascade Range, along west edge of Butte Creek, 700 m south-southwest of the Ponderosa Way bridge (Forks of Butte), just upstream of the diversion structure. 588 Comment
  CHSC94253  Carex pachystachya Lowell Ahart 2006-7-16 12980 Butte West edge of a large meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1569 Comment
  CHSC112105  Carex pendula Lowell Ahart 2012-5-31 18116 Butte On the north side of Comanche Creek, on the east side of Highway 99, Chico. 64 Comment
  SEINET12649677 Image available Carex pendula Peter F. Zika 2010-1 24824 Butte 45 Comment
  SEINET7571067 Image available Carex pendula L. P. Janeway 2004-6-20 8137 Butte Chico 7.5' quad, Sacramento Valley. South end of Chico, along edge of Comanche Creek at the bicycle bridge (former railroad bridge) about 150 m southeast (upstream) of the Midway (road) bridge across the creek. 59 Comment
  JEPS104628  Carex praegracilis Lowell Ahart 2000-4-27 8330 Butte On the cut bank on the west side of Pennington Road, about 400 feet north of Rutherford Road, Gray Lodge Waterfowl Management Area, about 6 miles (air) SW of Gridley. 21 Comment
  CHSC47052  Carex retroflexa var. texensis L. P. Janeway 1989-6-1 3270 Butte Campus of California State University, Chico; semi-natural area on N side of Big Chico Cr opposite Holt Hall. 57 Comment
  CAS-BOT-BC117542  Carex serratodens L. P. Janeway; C. A. Janeway 1986-10-12 1918 Butte Side canyon on N side of N Fk Feather River and along Hwy 70 ca 5 mi E of Jarbo Gap. 487 Comment
  CHSC113403  Carex simulata Lowell Ahart 2014-7-7 19584 Butte In the east part of the bog, Coon Hollow, about 2 miles (air) north of Philbrook Reservoir. 1690 Comment
  CHSC41297  Carex simulata S. C. Morey 1983-7-21 492 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  CHSC44993  Carex simulata S. C. Morey 1983-8-4 701 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  CHSC45244  Carex subfusca S. C. Morey 1983-8-3 691 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  CHSC65601  Carex subfusca L. P. Janeway 1995-7-16 4861 Butte 0.8 mi northwest of Oak Point; 0.8 mi east of Transfer Ridge; east side of Breakneck Canyon 1.5 mi north of Kimshew Creek; along Concow Road 8.2 mi east of West Branch Feather River. 1402 Comment
  CHSC83287  Carex subfusca L. P. Janeway; B. Castro 2002-7-7 7616 Butte High Cascade Range. Along logging spur road, 0.5 km east of the County Road (Forest Service Road 25N02); 3.4 km northeast of Bald Mountain Lookout and 1.6 km southwest of Jones Meadow. 1829 Comment
  SEINET10750078  Carex subfusca Lawrence P. Janeway, Robert A. Schlising; B. Castro; Pauleen Broyles 1987-7-19 Janeway 2497 Butte T26N, R4E, Jonesville quad (15') SE1/4 of sec. 36. Coon Hollow, 1.0 mi SE of the Humbug Summit Rd. 1661 Comment
  CHSC47128  Carex tumulicola L. P. Janeway 1989-5-13 3236 Butte Grassy mdw on E side of Concow Reservoir; along Concow Rd 5.2 mi N of Hwy 70. 629 Comment
  CHSC113951  Carex vesicaria Lowell Ahart 2014-7-13 19666 Butte West part of a large wet meadow (some bog), about 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  UC1594543  Carex vesicaria Lowell Ahart 1992-7-21 6806 Butte about 2 (air) mi ne Philbrook Reservoir (on the s side of Coon Hollow) 1737 Comment
  HSC104270  Carex xerophila P. F. Zika, L. P. Janeway 2012-5-16 25868 Butte Northern Sierra Nevada Highlands; Magalia Serpentine, Coutolenc Rd., 0.1 mi. N of Skyway Rd. 720 Comment
  CHSC111130  Carpenteria californica Lowell Ahart; Susan Bazell, Josephine Guardino, Wes Dempsey 2012-6-21 18201 Butte About 50 yards south of the dam at Sycamore Pool, Lower Bidwell Park, Chico. 62 Comment
Read comments
Feb 9 2019
  CHSC115404  Castilleja affinis M. Rogers 2013-5-14 Butte Oroville, Brad Freeman Tail off Oro Powerhouse Road next to the spillway. 80 Comment
  JEPS81862  Castilleja affinis subsp. affinis L. R. Heckard with J. C. Hickman and R. C. Bacigalupi 1982-5-11 5849 Butte about 10 mi e Oroville (along Olive Highway, 0.3 mi w of Forbestown Road) Comment
  SD7119  Castilleja applegatei subsp. pinetorum Mrs. R. M. Austin 1883-1 Butte Butte County Comment
  UC1063041  Castilleja applegatei subsp. pinetorum P. L. Johannsen 1936-7-17 933 Butte 2.5 mi sse Butte Meadow; Lassen National Forest, Paynes Creek Quad. 1554 Comment
  SEINET10865280  Castilleja applegatei var. fragilis Mary Susan Taylor 1978-5-6 Taylor 1583 Butte Just N of Magalia, in large serpentine area along the Skyway. 610 Comment
  CHSC50843  Castilleja arachnoidea Vernon Oswald; Lowell Ahart 1990-7-19 4367 Butte Slope on the south side of Philbrook Creek, ca. 3 mi east of Philbrook Reservoir, ca. 0.4 mi west of the Plumas County line. 2011 Comment
  CHSC1811  Castilleja attenuata P. Delaplane 1965-4-6 5 Butte Along W. side of Cohasset Rd. ca 1/4 mi. S.W. of intersection of Cohasset Rd. and Keefer Rd., Chico. 152 Comment
  CHSC55418  Castilleja attenuata L. P. Janway 1991-4-30 3920 Butte Ridge between Montgomery Bar Ravine and Lannigan Gulch, ca 3/4 mi west of Crystal Hill and ca 1/2 mi south of middle Fork Feather River. 426 Comment
  UCD73007  Castilleja attenuata Ayzik Solomeshch 2003-4-9 s. n. Butte Wurlitzer Reserve, about 10 mi. north from Chico on Hwy 99, west side of the road. Comment
  CHSC47694  Castilleja campestris subsp. campestris Lowell Ahart 1978-5-1 1689 Butte Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  UC1609089  Castilleja campestris subsp. campestris Lowell Ahart 1993-5-17 6950 Butte about 1.5 mi n and 3 mi e Honcut (on the w side of Dunstone Road, about 12 mi se of Oroville) 60 Comment
  JEPS4561  Castilleja campestris subsp. campestris Harry A. Dutton 1921-4-25 Butte sw of Oroville Comment
  CHSC3842  Castilleja exserta Susan Carrauthers 1966-3-28 80 Butte Table Mountain. Ca. 6 mi. N. of city of Oroville. Comment
  HSC43086  Castilleja exserta subsp. exserta Maralyn O'Meara 1974-4-20 293 Butte Table Mtn. 305 Comment
  CHSC1825  Castilleja lacera L. Oliver; S. Sloan 1935-5-4 Butte Butte Creek Canyon. Comment
  JEPS81865  Castilleja lacera L. R. Heckard with J. C. Hickman, J. Bartel and A. Q. Howard 1982-4-26 5843 Butte 2.0 mi e Keefer junction (along Cohasset Road, ca 8 air mi ne of Chico at Big Chico Creek); Big Chico Creek 182 Comment
  UC726419  Castilleja lacera A. A. Heller 1941-5-9 16107 Butte 0.5 mi above old Clear Creek Post Office site (on the Clark Road to Paradise) Comment
  CAS-BOT-BC241127  Castilleja miniata E. B. Copeland 1929-7-25 s.n. Butte Jonesville 1500 Comment
  POM181782  Castilleja miniata H. F. Copeland 1927-09 253 Butte Jonesville. Comment
  RSA4171  Castilleja miniata E. B. Copeland 1929-7-25 467 Butte Jonesville. 1500 Comment
  CHSC62130  Castilleja rubicundula subsp. rubicundula B. Castro; R. A. Schlising 1986-5-6 50 a Butte Ca 7 air mi N of Chico in a pasture on NW side of Meridian Road ca 0.2 mi E of its jcn with Hwy 99. 56 Comment
  CAS-BOT-BC48545  Ceanothus cordulatus A. A. Heller 1914-7-24 11623 Butte Sierra Nevada at Butte Meadows, on th banks of Butte Creek 1219 Comment
  OBI5725  Ceanothus cordulatus H. F. Cofeland 1927-9-2 232 Butte Jonesville 1524 Comment
  CAS-BOT-BC50825  Ceanothus integerrimus Clarence R. Quick 1952-6-30 52 -99 Butte Sierra Nevada - Ridge-top, Big Bar Mt., east of Pulga Comment
  CHSC81297  Ceanothus integerrimus J. Trizzino 2001-4-24 48 Butte Yahi Trail off Wildwood Road in Upper Bidwell Park, about 3/8 mi from trailhead. Riparian corridor along Big Chico Creek. 91 Comment
  UC1070736  Ceanothus integerrimus C. G. Albertus 1933-6-26 35 Butte 2 mi e Paradise; Chico quad. 152 Comment
  UC203678  Ceanothus integerrimus A. A. Heller 1914-4-16 11293 Butte 8 mi from Chico (on the Chico-Centerville rd) Comment
  CHSC35972  Ceanothus integerrimus var. californicus M. S. Taylor 1982-5-23 4508 Butte In granite on e side of Arch Rock Tunnel, n side of Hwy70, ca. 0.5 mi w of Butte-Plumas county line. 487 Comment
  CHSC4641  Ceanothus lemmonii R. Carter 1966-4-26 362 Butte Found ca. 10 mi. NE of Oroville along W side USFS road 21N40 to Bloomer Mt., growing along rocky roadside 1.4 mi. W from intersection with Oroville-Quincy Rd. 731 Comment
  LA44872  Ceanothus lemmonii Lewis S. Rose; 1937-6-10 37377 Butte Forbestown 838 Comment
  UC1070788  Ceanothus lemmonii C. G. Albertus 1933-5-26 3 Butte 2 miles E of Paradise Chico Quad. 152 Comment
  CHSC86137  Ceanothus parvifolius John Dittes 2002-6-29 624 Butte Northern High Sierra Nevada Range; Watson Ridge; ca. 2.3 air-miles south of Middle Fork Feather River, ca. 2.9 air-mile west by southwest of Cascade, ca. 6.8 air-miles north by northeast of town of Feather Falls. On slope above FS access road. 1255 Comment
  RSA77695  Ceanothus prostratus F. W. Peirson 1926-6-21 6780 Butte Butte Meadow, Humboldt Road Comment
  UCR131691  Ceanothus prostratus C. B. Wolf 1941-7-23 11054 Butte Northern Sierra Nevada Mtns., 7 miles west of De Sable on road to Forest Ranch 762 Comment
  CDA43059  Celtis australis L. P. Janeway, B. Castro 2010-6-4 9990 Butte Sacramento Valley.; Lower Bidwell Park, Chico; south side of Big Chico Creek, between South Park Drive and the creek; at junction of South Park Drive and Centennial Ave. Comment
  CHSC27158  Celtis occidentalis M. MacArthur 1968-6-23 286 Butte Ca. 10 ft. SE of Big Chico Creek, opposite SW entrance to LS bld., Chico State College. 60 Comment
  CAS-BOT-BC282002  Centaurea calcitrapa J. D. Jokerst 1985-6-17 2746 Butte Along the intermittent creek draining Box Hall Flat, between Lake Oroville and Potters Ravine 518 Comment
  CAS-BOT-BC282003  Centaurea calcitrapa W. Gilbert; R. Dodd 1970-7-22 s.n. Butte Highway 32 to Lake Almanor, NE of Forest Ranch, 19.5 miles NE of Chico Comment
  CHSC61294  Centaurea jacea Lowell Ahart 1993-8-8 7154 Butte On the west side of La Porte Road, about 2 miles south-west of Clipper Mills. 1066 Comment
  CDA7260  Centaurea maculosa T. C. Fuller 1971-8-18 19925 Butte North side of overlook parking lot, Oroville Dam, 7 miles east of Oroville. Comment
  CHSC109623  Centaurea melitensis Lowell Ahart 2012-5-20 18101 Butte On the east side of the Humboldt Trail, southeast part of Upper Bidwell Park, northeast of Chico. 414 Comment
  CAS-BOT-BC272091  Centaurea melitensis Lowell Ahart 1988-7-24 6129 Butte In logged over area, about 1/20 mile north-east of the intersection of Ponderosa Way adn Lower Forbestown Road, west of Sunset Hill, near Forbestown 731 Comment
  CHSC102513  Centaurea solstitialis Lowell Ahart 2009-5-30 15953 Butte Open area west of the Guardian Rock Trail, about 120 yards north of Pine Trail, about 3/8 mile (air) southwest of the intersection of Ten Mile House Road and Highway 32, Upper Bidwell Park, about 10 miles northeast of Chico. 398 Comment
  SFV3800  Centaurea solstitialis M. L. Vincent 1960-7-12 95 Butte Sierra Nevada 4 miles south of Paradise. Nelson Bar Road, off Pentz Road, near flume. 300 Comment
  CAS-BOT-BC284505  Centaurea solstitialis Forman T. McLean 1921-10-20 33 Butte Chico Comment
  OBI69158  Centaurea solstitialis Kari Fisher 2000-10-7 11 Butte Lindo Channel, 100 ft from E. First St 82 Comment
  CHSC62110  Centaurium tenuiflorum L. P. Janeway 1993-7-2 4424 A Butte Plumas National Forest. Along Rd 22N84 0.45 mi west of Stony Creek and 1.45 mi west of Rd 23N28 (the road from Swaybe Hill to Big Bar Mtn). 926 Comment
  POM76323  Centaurium venustum C. C. Bruce 1897-06 2002 Butte Plains Comment
  CAS-BOT-BC271504  Centromadia parryi subsp. rudis Lowell Ahart 1981-5-16 2803 Butte Gray Lodge Waterfowl Management Area, 11 miles southwest of Gridley, Sutter Buttes Area 35 Comment
  JEPS46151  Cephalanthera austiniae Duncan Dunning 1922-7-18 Butte n. Pulga (Flea Valley); Flea Valley Comment
  RSA754371  Cephalanthus occidentalis var. californicus L. Ahart 2009-7-9 16019 Butte E side of Big Chico Creek, about 50 yards W of Ten Mile House Road, Upper Bidwell park, about 3/4 mile (air) W of Highway 32, about 10 miles NE of Chico. 204 Comment
  CAS-BOT-BC388259  Cerastium glomeratum A. A. Heller 1914-3-7 11187 Butte Hills 8 miles north of Oroville Comment
  RSA31137  Cercis occidentalis A. A. Heller 1914-5-18 11406 Butte West slope of the Sierra near Forest Ranch. 610 Comment
  CHSC115455  Cercocarpus betuloides M. Sutton; C. Yasuda, S. Luse 2013-3-5 6 Butte Ten mile house trail. 391 Comment
  POM89488  Cercocarpus betuloides C. C. Bruce 1897-04 1817 Butte Big Chico Comment
  CHSC40473  Chaenactis glabriuscula var. heterocarpha Lowell Ahart 1985-5-15 4968 Butte West of Lunt Road, about 1/2 mile north of the intersection of Lunt Road and Highway 70, north of Yankee Hill. 502 Comment
  SEINET263347  Chamaesyce nutans V. H. Oswald, L Ahart 1991-8-28 4850 Butte Rice Experiment Station on the south side of Hwy 162 ca. 3.5 mi NNW of Biggs 30 Comment
  CHSC102992  Chamaesyce ocellata subsp. ocellata Lowell Ahart 2009-8-15 16284 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 33 Comment
  JEPS94872  Chamaesyce ocellata subsp. ocellata Lowell Ahart 1998-9-11 8058 Butte about 7 air mi n of Oroville (about 1/4 mi w of the cow chute on w side of Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 388 Comment
  RSA755772  Chamaesyce ocellata subsp. ocellata L. Ahart 2009-8-15 16284 Butte Road edges, Peter Ahart Ranch, about 1.5 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 34 Comment
  CHSC110329  Chamaesyce serpillifolia subsp. serpillifolia B. Castro; Margie Graham 2006-8-24 1604 Butte Sacramento Valley. Ca 1,8 mi W of Hwy 99 and 1 mi E of Richvale, ).25 mi N of Richvale Hwy in Cherokee Canal. On E side of canal abt 50 ft from toe of E levee. 32 Comment
  CHSC20970  Chamaesyce serpillifolia subsp. serpillifolia M. S. Taylor 1975-8-31 900 Butte Ca. 30 ft n of Humboldt Rd, ca. 1/2 mi e of Butte Meadows. 1341 Comment
  CHSC34045  Chamaesyce serpillifolia subsp. serpillifolia L. Ahart 1981-7-26 3001 Butte Along the edge of the rd, 1/10 mi w of Pennington Rd on the dirt rd that leads to the Graylodge Waterfowl HQ, ca. 12 mi sw of Gridley. 35 Comment
  CAS-BOT-BC69476  Cheilanthes cooperae Wayne D. Dakan 1974-4-15 s.n. Butte Near bridge at West Branch of Feather River on Hwy. 70. Comment
  CAS-BOT-BC69440  Cheilanthes gracillima M. S. Taylor 1978-7-21 1840 Butte Big Bald Rock, ca. 2 mi. e. of Lake Madrone. 997 Comment
  CAS-BOT-BC69448  Cheilanthes gracillima E. B. Copeland 1929-7-13 327 Butte Jonesville. 1700 Comment
  UC1609401  Cheilanthes gracillima Lowell Ahart 1993-6-26 7039 Butte ca 1 air mi nw Lost Creek Reservoir Dam; Jackass Flat, Mooreville Ridge 1158 Comment
  SEINET10479039  Chenopodium ambrosioides Mary Susan Taylor 1980-10-6 Taylor 3358 Butte T23N R5E se sec 15, Pulga quad. S side of Hwy 70, ca. 0.4 mi W of Bear Creek jct with N Fork Feather River, ca. 0.5 mi W of Arch Rock Tunnel Rest Stop, near Butte-Plumas county line; granitic soils. 488 Comment
  JEPS95932  Chenopodium botrys Lowell Ahart 1999-8-13 8178 Butte northwest of Parrott Landing; about 1 mile southeast of Ord Ferry; about 2 miles southeast of Ordbend; about 12 miles (air) southwest of Chico 32 Comment
  RSA726435  Chenopodium pumilio L. Ahart 2007-11-3 14566 Butte About 3/4 mile east of the Power House below Kuncke Reservoir, about 1.25 miles north of the Lime Saddle Campground, about 5 miles (air) southeast of Paradise. 259 Comment
  CAS-BOT-BC497800  Chlorogalum angustifolium Lowell Ahart 1988-5-12 5986 Butte About 1/2 mile north-east of the Honcut Cemetery, Joie Osgood Ranch, about 3 miles east and 1 1/2 miles north of Honcut. 60 Comment
  CAS-BOT-BC498629  Chlorogalum angustifolium John Thomas Howell 1962-6-15 37420 Butte 5 miles west of Oroville; Sierra Nevada Comment
  CHSC38877  Chlorogalum pomeridianum var. pomeridianum Vernon Oswald 1983-6-20 726 Butte Upper Bidwell park, Chico, along Yahi Trail e of Brown's Hole. 198 Comment
  JEPS55718  Chlorogalum pomeridianum var. pomeridianum Theodore Niehaus 1968-5-26 822 Butte on Pentz Road ca 1/4 mi w Pentz Comment
  CHSC6035  Choenomeles japonica M. MacArthur 1968-6-18 225 Butte Ca. 30 ft. E of Big Chico Creek, near end of PSA bld. bridge, Chico State College. 60 Comment
  RSA104166  Chorizanthe membranacea R. M. Austin 1883-1 s.n. Butte [No location data on label] Comment
  CHSC108991  Chorizanthe polygonoides var. polygonoides Lowell Ahart 2012-4-30 17944 Butte North end of the Disc Golf Area, about 50 yards west of Highway 32, about 5 miles (air) northeast of Chico. 395 Comment
  CHSC43863  Chorizanthe polygonoides var. polygonoides Vernon Oswald 1988-4-4 3266 Butte Harter's Cherokee Ranch located on the w side of Hwy 99 between Hwy 149 and Dry Creek. In the northeast part of the ranch. 60 Comment
  CHSC84285  Chorizanthe stellulata Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2003-5-27 10218 Butte Rifle and Trap Range, northeast of Horseshoe Lake, north of Parking Area E, Upper Bidwell Park, about 1 1/2 miles east of Manzanita Avenue, Chico. 103 Comment
  CAS-BOT-BC36369  Chrysolepis sempervirens E. B. Copeland 1931-7-27 625 Butte Jonesville 1650 Comment
  CAS-BOT-BC279859  Cichorium intybus A. A. Heller 1914-7-11 11559 Butte Near Chico Comment
  CAS-BOT-BC279862  Cichorium intybus John Thomas Howell 1959-9-20 34629 Butte Eastern outskirts of Oroville 60 Comment
  UC1586527  Cinna latifolia Lowell Ahart 1991-8-25 6708 Butte along Haphazard Creek (about 1 mi nw of Rogers Cow Camp, w of Oroville-Quincy Hwy about 6 mi ne of Brush Creek); along Haphazard Creek 1219 Comment
  CHSC44043  Circaea alpina subsp. pacifica L. P. Janeway 1987-6-26 2304 Butte Edge of pond in Camp Cr next to crossing of road, 2.5 mi east of Granite Ridge along the road to Lynch and Logue Mdws. 1365 Comment
  SEINET10453137  Circaea alpina subsp. pacifica Mary Susan Taylor 1978-7-21 Taylor 1817 Butte On S side of Oroville-Quincy Hwy, along creek and in meadow, ca. 14 mi N of Lake Madrone, ca. 24 mi NE of Oroville; Yellow Pine Forest. 1463 Comment
  CAS-BOT-BC228755  Cistanthe umbellata Clarence R. Quick 1952-7-1 52 -118 Butte Mill Creek Road between Feather River Highway and Coyote Gap Comment
  CAS-BOT-BC228756  Cistanthe umbellata E. B. Copeland 1930-7-12 413 A Butte Above Jonesville 2000 Comment
  CHSC43549  Clarkia arcuata Lowell Ahart 1978-5-2 1710 Butte On slopes near the top of Table Mountain, near the large parking area near the top of Table Mountain, about 7 miles north of Oroville. 365 Comment
  UCD104329  Clarkia biloba subsp. brandegeeae L. P. Janeway 1993-9-20 4589 Butte Near Ponderosa Dam, South Fork Feather River. Comment
  UCD104349  Clarkia biloba subsp. brandegeeae Joseph M. DiTomaso 1976-5-23 472 Butte Lake Oroville, peninsula at south end. 274 Comment
  CAS-BOT-BC165940  Clarkia gracilis Lowell Ahart 1975-5-12 s.n. Butte Peter Ahart Ranch, Honcut Comment
  RSA108396  Clarkia gracilis subsp. albicaulis Harlan Lewis, M. Roberts 1951-5-19 830 Butte Road from Nimshew to Butte Creek Canyon, 2.3 miles above bridge across Big Butte Creek. Comment
  CHSC46131  Clarkia gracilis subsp. gracilis Lowell Ahart 1975-5-12 755 Butte On dredger piles, along North Honcut Creek, Peter Ahart Ranch, about 3/4 mile north and 2 1/2 miles east of Honcut, about 12 miles south of Oroville. 36 Comment
  UC1732065  Clarkia mildrediae subsp. lutescens L. P. Janeway 1993-7-12 4437 Butte 0.5 mi N of Mountain House (along Road 22N49 1.2 mi SW of Fourmile Ridge Road (Road 22N33)) 853 Comment
  CHSC100858  Clarkia mildrediae subsp. mildrediae B. Castro; David Toren 2005-7-21 1521 Butte Ca 8.5 air mi NE of Paradise, on slopes just W of Lockerman Ck. On NW-facing roadcut by USFS Rd 24N13, about 5 ft off road. 890 Comment
  CAS-BOT-BC172528  Clarkia purpurea subsp. purpurea A. A. Heller 1914-5-11 11384 Butte Hills 8 miles north of Oroville Comment
  SD111901  Clarkia purpurea subsp. quadrivulnera Barbara Ertter, Lowell Ahart & Jeff Strachan 1980-5-6 3278 Butte Peter Ahart Ranch ca 2 1/2 miles NNE of Honcut between Oroville & Marysville, stream through Valley Grassland and grainfield. 29 Comment
  CHSC3528  Clarkia purpurea subsp. viminea John Francis 1966-5-7 155 Butte 3.6 miles N. of intersection of Pentz Rd. and Hwy. 99E., on Pentz Rd. Beside road. Comment
  CHSC38567  Clarkia rhomboidea Vernon Oswald 1983-5-21 518 Butte Upper Bidwell Park, Chico, on the north rim 1500 ft e of the power lines. 274 Comment
  POM271488  Clarkia rhomboidea J. W. Morrison 1929-06 s.n. Butte Oroville-Quincy. Sierra Nevada mtn range. Feather River watershed. Comment
  SEINET10885379  Clarkia rhomboidea Mary Susan Taylor 1982-6-24 Taylor 4727 Butte T23N R5E center sec 30. Pulga SW quad. Forest opening on disturbed soild, e side of Flea Mt. ridge, ca 1 mile se of Flea Mt., 1.7 miles se of Ponderosa Way, ca 8.9 miles n of Jarbo Gap on Hwy 70. Mixed Evergreen Forest; 3600 feet. With Silene pratensis. 1095 Comment
  CHSC43719  Claytonia palustris Vernon Oswald 1983-6-22 738 Butte Soda Springs Campground near Calif. Hwy 32, 17.8 mi n-e of Forest Ranch. 1112 Comment
  RSA65644  Claytonia palustris F. W. Peirson 1926-6-21 6774 Butte Butte Meadow, Humboldt Road Comment
  CHSC10812  Claytonia parviflora subsp. parviflora Lowell Ahart 1965-4-11 Butte Walsh Ranch. 60 Comment
  JEPS114966  Claytonia parviflora subsp. parviflora Lowell Ahart 2008-5-8 14718 Butte Below the high water line of Lake Oroville, about 300 yards south of the poor parking area, on the west side of McCabe Creek, about 3/4 mile southwest of the Enterprise Bridge, about 11 miles (air) east of Oroville 259 Comment
  RSA712990  Claytonia perfoliata L. Ahart 2006-4-28 12546 Butte 3/4 mile NW of Iron Gate along Cherokee Road, N TAble Mtn, 7 miles air N of Oroville 318 Comment
  CHSC34944  Claytonia perfoliata subsp. perfoliata Patricia Haberkern 1974-3-24 21 Butte Abundant in grassy, shaded meadow ca. 50 yds. w Sycamore Pool in Bidwell Park, Chico. 60 Comment
  CHSC39068  Claytonia perfoliata subsp. perfoliata R. A. Schlising 1983-3-20 4395 Butte Richvale Vernal Pools, 0.25 mile south of junction with Highway 162 to Oroville, along Highway 99, and across from Thermalito Afterbay. On hilltop near scattered trees. Comment
  RSA469284  Claytonia rubra H. F. Copeland 1929-6-11 1516 Butte Jonesville. 1524 Comment
  SEINET10962339  Claytonia rubra Mary Susan Taylor 1981-4-28 Taylor 3564 Butte T22N R5E nw/sw sec 21. Berry Creek quad. N side of Rd 23N28.2, in loop of the rd, ca. 1.2 mi W of Chino Creek, ca. 4 air mi E of Jarbo Gap, ca. 23 air mi NW of Oroville. On decomposed granite; 3050 ft. 930 Comment
  CHSC32679  Claytonia rubra subsp. rubra M. S. Taylor 1981-3-24 3440 Butte S side of Hwy 70 just e of Heinz Creek, ca. 1 mi e of Pulga. Comment
  CHSC42407  Claytonia rubra subsp. rubra Lowell Ahart 1987-5-6 5534 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC52782  Clematis lasiantha Neal Schaeffer 1982-4-18 10 Butte Between Pentz Rd and Kunkle Reservoir, ca. 20 m from road, 50 m n of reservoir access road. 450 Comment
  SEINET10536025  Clematis lasiantha Mary Susan Taylor 1975-4-25 Taylor 491 Butte Ca. 1/4 to 1/2 mi E of Cohasset Hwy, along dirt rd leading up onto ridge, ca. 10 mi NE of Chico. Soil wet red clay. Mixed Chaparral. Comment
  SEINET194862  Cogswellia marginata A. A. Heller 1941-4-16 16065 Butte Along US highway 99E 4 miles north of Biggs. Comment
  SEINET10548267  Collinsia parviflora Mary Susan Taylor 1980-4-16 Taylor 2482 Butte T21N R4E s sec 17 Cherokee quad. Lake Oroville State Recreation Area, up to 0.5 mi SE of Parish Camp, just S of Lime Saddle Memorial Park, ca. 5 mi S of Paradise; Foothill Woodland. 305 Comment
  RSA589931  Collinsia sparsiflora Michael A. Vincent, Robert M. Rhode, Jim Snowden 1996-3-29 7216 Butte North Table Mountain, W of Cherokee Rd. N of Oroville. N side of Beatson Hollow, 2.1 miles along trail from entrance on Cherokee Rd. Comment
  CHSC46087  Collinsia sparsiflora var. collina Lowell Ahart 1989-3-25 6198 Butte Along an old road to Lake Oroville, near Lake Oroville, about 1/4 miles north-west of the West Branch Bridge across Lake Oroville. 304 Comment
  CHSC82275  Collinsia sparsiflora var. collina J. Marr 1988-3-19 12 Butte 2.5 mi WNW of Cherokee Rd on Table Mtn, 6 mi N of Oroville. 304 Comment
  CHSC34995  Collomia heterophylla R. A. Schlising 1980-6-2 3620 Butte Along Highway 32, 10.3 mi N of jct with Forest Ranch Road in village of Forest Ranch; at roadside. Comment
  SEINET2445717  Collomia heterophylla R. M. McKee 1918-5-26 s.n. Butte Stirling City, Calif. Comment
  CHSC41369  Collomia tinctoria R. A. Schlising; Sandra Morey 1982-8-31 4381 Butte N Butte County, Cherry Hill Meadow, N and E of Butte Meadows off Humboldt Road and N of Butte Creek. At stream edge. 1524 Comment
  CHSC45348  Collomia tinctoria Vernon Oswald 1987-6-23 3019 Butte High Lakes Rd. 4.8 mi (odometer) n of Philbrook Rd. On wall of gravel pit. 1889 Comment
  UC478478  Collomia tinctoria E. B. Copeland 1931-6-29 679 Butte on gravel bars along creek Jonesville, Butte Creek 1500 Comment
  CHSC1623  Comandra umbellata subsp. californica V. Holt 1935-5-3 Butte Butte Creek. Bank of road cut. 121 Comment
  CHSC40381  Comandra umbellata subsp. californica Lowell Ahart 1985-5-15 4983 Butte East along the dirt road, about 1/2 mile north-east of Concow Res. 594 Comment
  UCD126193  Convolvulus arvensis A. A. Heller 1916-9-8 12657 Butte near Durham. Comment
  LA209148  Cordylanthus tenuis subsp. tenuis E. B. Copeland; 1929-7-29 sn Butte Jonesville 502 Comment
  CHSC80534  Coriandrum sativum Lowell Ahart 2001-5-10 8742 Butte On the sides of the dirt road east of the large pump, on the south side of Evans-Reimer Road, about 1 mile east of Pennington Road, Gray Lodge Waterfowl Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  SEINET12137515  Cornus nuttallii Unknown 1979-1 14 Butte N rim of Magalia Reservoir, ca 300 yds E of intersection between Dogtown Rd & Skyway 914 Comment
  UC175520  Cornus sericea subsp. sericea A. A. Heller 1913-6-7 10817 Butte W. Branch of N. Fork of Feather R. near Stirling; W. Branch of N. Fork of Feather R. 914 Comment
  UC426924  Cornus sericea subsp. sericea E. B. Copeland 1930-6-23 431 Butte Jonesville 1500 Comment
  POM77766  Cornus sessilis Mrs. R. M. Austin 1883-06 s.n. Butte Lomo Comment
  UCD169337  Coronilla varia Lowell Ahart 2004-6-22 11121 Butte About 5 miles (air) southwest of Stirling City, about 2 1/2 miles (air) southeast of Forest Ranch, about 1 mile southeast of the bridge across Butte Creek, on the west side of Doe Mill Road. 713 Comment
  CAS-BOT-BC401860  Corydalis caseana subsp. caseana E. B. Copeland 1929-7-3 365 Butte Jonesville 1500 Comment
  CHSC58279  Cotoneaster pannosus Lowell Ahart 1991-12-30 6735 Butte Along the Dan Beebe Trail in Lake Oroville Recreation Area, between Canyon Drive and Oroville Dam Blvd East, south-west of Oroville Dam. 213 Comment
  CAS-BOT-BC287213  Cotula australis Lowell Ahart 1983-4-1 3916 Butte Old Highway 40, near the water fountain, near the end of the road where it runs into Lake Oroville, about 4 miles S of Jarbo Gap 350 Comment
  CAS-BOT-BC287214  Cotula australis Lowell Ahart 1988-11-27 5927 Butte Near the SW corner of Wells Fargo Bank, Gridley 28 Comment
  CHSC36526  Cotula coronopifolia L. Ahart 1982-7-29 3450 Butte Field n of the Peter Ahart Ranch, ca. 2.5 mi n and 1 1/4 mi e of Honcut. 50 Comment
  JEPS128723  Cotula coronopifolia Lowell Ahart 2017-4-22 21390 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles (air) south of Oroville. Comment
  CHSC82214  Crassula aquatica Lowell Ahart 2002-4-15 9490 Butte Just above the water on the east side of a canal bank, on the west side of Faris Road, 3 miles west of West Biggs Gridley Road, about 3 miles (air) southwest of Biggs. 24 Comment
  JEPS117153  Crassula aquatica Lowell Ahart 2010-4-7 16574 Butte About 50 feet west of Virginia Street, about 20 feet south of Spruce Street, in Gridley 28 Comment
  CHSC26736  Crassula connata M. S. Taylor; M. Hayes 1978-4-14 1552 Butte E of Williams Rd ca. 1/4 mi n of Pentz Rd on Butte College Campus, ca. 15 mi s of Chico. 60 Comment
  CHSC29227  Crassula tillaea M. S. Taylor; J. D. Jokerst, L. Ahart 1980-4-6 2444 Butte Ca. 500 yds n of Swedes Flat Rd, ca. 50 ft w of Rocky Honcut Creek, ca. 2 mi e of Oroville-bangor Hwy, ca. 10 mi s of Oroville. 365 Comment
  CHSC108167  Croton setiger L. P. Janeway 2011-8-17 10655 Butte Northern High Sierra Nevada. Plumas National Forest; east slope of Bloomer Hill, 1.0 km east-southeast of the top. Common on old roadbeds mostly reverted to natural habitat; occasionally scattered throughout the opening. 710 Comment
  UCR219265  Croton setiger George K. Helmkamp, E. A. Helmkamp 2009-9-5 15588 Butte Sacramento Valley, Lower Honcut Road, 0.9 rd. mi. west of Honcut, 7.8 mi. SE (111 deg. ) of Gridley 34 Comment
  CHSC118498  Crucianella angustifolia L. P. Janeway 2016-5-9 11953 Butte Northern High Sierra Nevada. Plumas National Forest; upper north-facing slope above the South Fork Feather River arm of Lake Oroville, 0.4 km northwest of junction of Ponderosa Way and Road 19N19. 701 Comment
  CHSC84052  Crucianella angustifolia Lowell Ahart 2003-5-26 10214 Butte On the west side of North Honcut Creek, about 2 1/2 miles north and 2 2/3 miles east of Honcut, about 12 miles southeast of Oroville. 60 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
  RSA755640  Crucianella angustifolia L. Ahart 2009-5-15 15706 Butte East side of Big Chico Creek, on the east side of Ten Mile House Road, Upper Bidwell Park, about 3/4 air mile west of Highway 32, about 10 miles northeast of Chico. 234 Comment
  CHSC116139  Crypsis schoenoides Lowell Ahart 2015-10-26 20601 Butte Strand of Lake Oroville, on west side of West Branch of Feather River, about 1 mile (air) southeast of Kunckle Reservoir, about 5 miles (air) southeast of Paradise. 207 Comment
  CHSC34195  Crypsis schoenoides J. D. Jokerst; L. Ahart 1981-9-26 1488 Butte On sand bars adjacent to and E of Sacramento River at the Bidwell River State Park (Chico Landing), ca. 5.0 mi W of Chico. Comment
  CHSC51286  Crypsis schoenoides Lowell Ahart 1990-9-30 6603 Butte Along the edges of Canyon Creek, below the high water line of Lake Oroville, below the Canyon Creek Bridge across Lake Oroville. 228 Comment
  POM313218  Crypsis schoenoides H. L. Mason 1945-9-19 12729 Butte Gray Lodge Game Refuge, northwest of Pennington Comment
  POM183197  Cryptantha affinis H. F. Copeland 1930-7-28 1386 Butte Neighborhood of Jonesville. 1829 Comment
  SBBG119797  Cryptantha affinis L. Ahart 2006-7-16 13000 Butte Willow Crk, ca. 0.75 air mi NW of Jonesville, ca. 5 air mi NE of Butte Meadows 1524 Comment
  SEINET10497261  Cryptantha affinis Lowell Ahart 1983-8-16 Ahart 4292 Butte T26N R4E nw section 28. Along a small stream that flows into Butte Creek, ca. 1 mi east of Butte Meadows. Yellow Pine Forest; 1450 m. 1450 Comment
  SD122570  Cryptantha flaccida Lowell Ahart, Peter Ahart 1984-5-28 4649 Butte On a large road cutbank along Highway 40, now called Dark Canyon Road, 2 miles east of the Old Yankee Hill, ca 16 miles northeast of Oroville 449 Comment
  SEINET10497273  Cryptantha flaccida Lowell Ahart 1984-5-19 Ahart 4609 Butte On a small hill a little east of Kunkle Creek, ca. 0.5 mi N of Kunkle Reservoir, ca. 2 mi S of Paradise, on E side of Pentz-Magalia Hwy; Foothill Woodland; 600 m. 600 Comment
  SEINET10497278  Cryptantha flaccida Lowell Ahart 1984-6-8 Ahart 4668 Butte At the Ponderosa Dam, ca. 2 mi NW of Forbestown; Yellow Pine Forest; 370 m. 370 Comment
  SEINET12329571  Cryptantha flaccida L. Ahart, Ahart, P. 1984-1 4649 Butte on a large road cutbank along Hwy 40, now called Dark Canyon Rd, ca 2 mi E of Old Yankee Hill.. 450 Comment
  SBBG63701  Cryptantha glomeriflora M. M. Miles -May-1886 Butte Butte County [no specific locality] Comment
  CHSC33418  Cryptantha intermedia R. A. Schlising; J. D. Jokerst 1980-7-2 3821 Butte 1.4 miles S of Nimshew junction of the Centerville and Nimshew Roads. Along Centerville Road. Comment
  CHSC43576  Cryptogramma acrostichoides Vernon Oswald 1987-6-9 2969 Butte Summit Lake ca. 4 mi se of Jonesville, ca. 1 mi n of Snow Mt. 1901 Comment
  CHSC61018  Cupressus arizonica subsp. arizonica Vernon H. Oswald 1993-7-29 5732 Butte Gray Lodge Wildlife Management Area W of Gridley, S side of Rutherford Rd. at Parking lot 4, ca. 1.5 mi W of Pennington Rd. 19 Comment
  CHSC7190  Cupressus macnabiana F. Kimball 1969-4-23 67 Butte Roadsides of Coutolenc Rd. 0.3 mi n of Paradise-Stirling City Skyway, 0.5 mi n of Magalia. 762 Comment
  SEINET5716135 Image available Cupressus macnabiana Lowell Ahart 1985-1 5094 Butte About 2.5 miles NE of Forbestown.; Forbestown 869 Comment
  CHSC45036  Cuscuta californica Lowell Ahart 1988-8-10 6170 Butte West of Lunt Road, about 1/2 mile north-west of Highway 70. 548 Comment
  RSA718086  Cuscuta californica L. Ahart 2006-7-16 12959 Butte About 50 yards south of Humboldt Road, about 1 1/2 miles (air) southwest of Butte Meadows. 1436 Comment
  RSA718398  Cuscuta californica L. Ahart 2006-7-4 12911 Butte Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 31 Comment
  JEPS98505  Cuscuta campestris Lowell Ahart 2000-8-28 8668 Butte West edge of a large man made lake, Oroville Wildlife Area, about 1/2 mile west of Oak Grove and Highway 70, about 6 miles (air) southwest of Oroville. 42 Comment
  CHSC48363  Cuscuta pentagona Vernon Oswald 1988-6-22 3512 Butte Hwy 99, 0.6 mi s of Dry Creek. Comment
  JEPS108864  Cuscuta pentagona Lowell Ahart 2006-10-1 13388 Butte Bottom of a large dredger pond, west of North Honcut Creek, about 2 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville 54 Comment
  JEPS95935  Cycloloma atriplicifolium Lowell Ahart 1999-8-13 8159 Butte northwest of Parrott Landing; about 1 mile southeast of Ord Ferry; about 2 miles southeast of Ordbend; about 12 miles (air) southwest of Chico 32 Comment
  SEINET10479028  Cycloloma atriplicifolium Mary Susan Taylor 1979-10-2 Taylor 2210 A Butte Sacramento River Chico Landing and park, off River Road near the washout, ca. 5 mi W of Chico; Riparian Woodland. 30 Comment
  JEPS105911  Cymopterus terebinthinus var. californicus Lowell Ahart 2004-8-2 11334 Butte On both sides of the dirt County Road, between the Sky High Mine and Dresser Camp, about 2 miles (air) southeast of the Philbrook Reservoir Dam, about 7 miles (air) southeast of Butte Meadows 1912 Comment
  CAS-BOT-BC190245  Cynodon dactylon Lowell Ahart 1962-6-10 s.n. Butte Peter Ahart Ranch, Honcut. 45 Comment
  CAS-BOT-BC190246  Cynodon dactylon Lowell Ahart 1980-8-16 2585 Butte Peter Ahart Ranch, Honcut. 50 Comment
  SEINET10507349  Cynodon dactylon Mary Susan Taylor 1979-8-4 Taylor 2181 Butte T23N R5E center of S border sec. 22/27. Ca. 1 mi N of Cresta Powerhouse on Hwy 70, ca. 30 mi N of Oroville; granitic soils. 488 Comment
  SEINET9084612  Cyperus bipartitus L. Ahart 2000-8-23 8663 Butte Oroville Wildlife Area, ca 0.5 mile W of Pacific Heights Road; ca 4 air miles SW of Oroville. 43 Comment
  CHSC30503  Cyperus difformis J. D. Jokerst; M. S. Taylor 1979-11-1 634 Butte Field north of Goodspeed-Watt Road, 0.1 mi N of its jct with Nelson, ca 6.0 mi S of Chico. Comment
  CAS-BOT-BC114597  Cyperus eragrostis L. P. Janeway; C. A. Janeway 1986-10-12 1919 Butte In rocks, gravel and sand on the N side of North Fork Feather River at Pulga 426 Comment
  CHSC76299  Cyperus eragrostis Lowell Ahart 1999-9-21 8272 Butte Large disturbed area along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CHSC100231  Cyperus erythrorhizos John Dittes 2003-10-8 848 Butte Undesignated section of Arroyo Chico Land Grant; Northern Sacramento Valley; ca. 6.0 air-miles west by southwest of Chico, ca. 2.3 air-miles south of State Hwy 32, east bank of Sacramento River, Bidwell-Sacramento River State Park. 38 Comment
  CHSC68386  Cyperus erythrorhizos L. P. Janeway 1986-9-20 1868 Butte Northwest side of Little Chico Creek near River Road, about 2 mi south of Chico River Road. 36 Comment
  SEINET10971818  Cyperus erythrorhizos Lowell Ahart 1984-8-19 Ahart 4789 Butte West of Pacific Heights Road, about 5 miles south-west of Oroville. Comment
  UCD141048  Cyperus erythrorhizos E. M. Johnston 1915-1 W 153 J Butte Biggs. Comment
  SEINET7581945 Image available Cyperus flavescens Lowell Ahart 1987-1 5865 Butte Along the north fork of the Feather River, near the Poe Power House, about 2 miles southeast of Jarbo Gap. 271 Comment
  SEINET9084642  Cyperus flavescens L. Ahart 2000-8-23 8664 Butte Oroville Wildlife Area, ca 0.5 mile W of Pacific Heights Road; ca 4 air miles SW of Oroville. 43 Comment
  CHSC78398  Cyperus fuscus Lowell Ahart 2000-7-23 8603 Butte Near 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
  CHSC116142  Cyperus niger Lowell Ahart 2015-10-26 20598 Butte Strand of Lake Oroville, on the west side of the West Branch of the Feather River, about 1 mile (air) southeast of Kunckle Reservoir, about 5 miles (air) southeast of Paradise. 207 Comment
  CHSC94763  Cyperus niger Lowell Ahart 2006-9-13 13316 Butte South edge of the North Fork of the Feather River, about 100 yards west of Mill Creek, north side of Highway 70, about 1/8 mile west of Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville. 431 Comment
  POM111856  Cyperus squarrosus C. C. Bruce 1897-06 1882 Butte Little Chico Comment
  UC1550  Cyperus squarrosus E. L. G. 1900-6-27 Butte Chico Comment
  CAS-BOT-BC114208  Cyperus strigosus Ira L. Wiggins 1928-9-9 3337 Butte Sandy Gulch Creek, 3 mi W of Chico. Comment
  CHSC116137  Cyperus strigosus Lowell Ahart 2015-11-7 20632 Butte On the bottom of Grizzly Creek, flows into Dark Canyon, about 1/8 mile southwest of the parking area at the end of old highway Alternate 40, strand of Lake Oroville, about 4 miles (air) south of Highway 70, about 8 miles (air) southeast of Paradise. 231 Comment
  CHSC68407  Cyperus strigosus L. P. Janeway; C. A. Janeway 1986-9-14 1861 Butte Sycamore Creek at Cohasset Avenue near Eaton Road. 54 Comment
  UCD141152  Cyperus strigosus L. E. Hazeltine 1916-7-27 s.n. Butte Chico. Comment
  SEINET8773192 Image available Cyperus strigosus H. E. Brown Butte Near Clear Creek Comment
  CHSC99483  Danthonia unispicata Lowell Ahart; John Dittes 2008-6-19 14869 Butte Open hillside, about 100 yards east of Willow Creek, about 120 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber. 1578 Comment
Read comments
Oct 5 2019
  UCSB34189  Danthonia unispicata Reisentz, Paul 1979-5-13 Butte 4 mi E on Cherokee Rd from Hwy 70 Comment
  CHSC6024  Daphne odora M. MacArthur 1968-6-19 263 Butte SE side of Auditorium bld., Chico State College. 60 Comment
  CHSC33371  Darmera peltata Steven Azevedo 1980-4-16 15 Butte Middle of Mud Creek, 1 mi. e of Richardson Spring. 243 Comment
  CHSC84373  Darmera peltata Lowell Ahart 2003-8-26 10547 Butte On the bottom of the South Fork of the Feather River, about 1/2 mile north of Golden Trout Crossing, about 6 miles (air) northeast of Feather Falls. 975 Comment
  SEINET10546583  Datura meteloides Lowell Ahart 1985-9-14 Ahart 5167 Butte On dry red soil on the east side of a building, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. Comment
  CHSC38722  Datura wrightii Vernon Oswald 1983-10-8 1054 Butte Upper Bidwell Park, Chico, on the south edge of the parking lot at Five Mile Recreation Area. 85 Comment
  CAS-BOT-BC8566  Delphinium hansenii A. A. Heller 1922-5-28 13625 Butte Along Chico Creek near Salt Spring, upper end of Bidwell Park Comment
  CHSC3562  Delphinium nudicaule R. D. Briggs 1966-3-2 51 Butte Salmon Hole,' 4 miles N.E. of the Bidwell Park golf course, Chico. Ledge above creek. Comment
  SEINET12089324  Delphinium nudicaule J. D. Mott 1978-1 20 Butte Cherokee Quadrangle, upper Miocene Canal 448 Comment
  POM99888  Delphinium nuttallianum C. C. Bruce 1897-03 1916 Butte Butte Creek. Comment
  CHSC56876  Delphinium patens Keith Lickey 1976-4-17 68 Butte Hwy 70, 500 m sw of Grizzly Dome Tunnel; n-nw slope. 914 Comment
  CHSC2463  Delphinium patens subsp. patens R. Carter 1964-3-23 58 Butte 5 mi. E of Chico Rd. on Cherokee Rd. Ca. 200 yds. E of rd. along base of cliffs. 60 Comment
  CAS-BOT-BC121610  Delphinium patens subsp. patens A. A. Heller 1919-5-18 13176 Butte Mosquito Creek between Appleton and Coutelence Comment
  CAS-BOT-BC121625  Delphinium patens subsp. patens Lowell Ahart 1990-3-28 6429 Butte South side of Pacific Heights Road, about 3 1/2 miles southwest of Oroville 39 Comment
  UC765797  Delphinium recurvatum R. F. Hoover 1937-5-18 2231 Butte 2 mi s Nelson Comment
  UCD96741  Delphinium variegatum J. P. Smith; J. O. Sawyer 1973-4-14 6058 Butte Bruce Lane, between Skyway and Humboldt Road east of Chico. Comment
  CHSC25134  Delphinium variegatum subsp. variegatum C. A. Gardner 1974-4-16 15 Butte On Table Mountain ca. 6 mi n of Oroville, ca. 100 yds. off w side of Cherokee-Table Mountain Rd. 243 Comment
  CHSC85393  Delphinium variegatum subsp. variegatum John Dittes; Josephine Guardino 1992-5-7 479 Butte Cascade Range Foothills; ca. 5.1 air-miles northeast of Chico City Hall, ca. 1.3 air-miles east by southeast of Horseshoe Lake, ca. 1.2 air-mile west of Hwy 32; north of tributary of Dead Horse Slough, east of Canyon Oaks Golf Course. 176 Comment
  CHSC90007  Delphinium variegatum subsp. variegatum Charles Crannell 1991-4-22 18 Butte Found along side of Hwy 32, 4.1 mi northeast of Chico. 243 Comment
  CAS-BOT-BC17023  Delphinium variegatum subsp. variegatum A. A. Heller 1918-4-19 12987 Butte Valley oak belt on the banks of Pine creek 12 miles north of Chico Comment
  CAS-BOT-BC17025  Delphinium variegatum subsp. variegatum A. A. Heller 1914-3-18 11205 Butte Hills 8 miles north of Oroville Comment
  UC855062  Dendromecon rigida A. A. Heller 1938-6-14 15150 Butte along the Feather River Hwy near Yankee Hill Road (about 20 mi from Oroville) Comment
  SEINET10448606  Dentaria pachystigma var. dissectifolia Mary Susan Taylor 1975-5-9 Taylor 570 Butte Abundant in serpentine area, ca. 50 ft E of the Skyway, ca. 1/4 mi N of DeSabla turnoff, Magalia; with Arctostaphylos sp. 732 Comment
  CHSC103948  Deschampsia danthonioides Lowell Ahart 2010-5-14 16643 Butte On the west side of the old Humboldt Road, Disc Golf Area, about 150 yards north of the entrance to the Disc Golf Area, about 40 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 395 Comment
  SEINET10524182  Deschampsia danthonioides Lowell Ahart 1982-1 Ahart 3398 Butte On dry soil in low area in a grassy field near dirt rd, ca. 3/4 mi w of check-in station, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. Common. 35 Comment
  CHSC38807  Deschampsia elongata Vernon Oswald 1983-6-14 687 Butte Upper Bidwell Park, Chico, beside Yahi Trail e of Brown's Hole. Near the creek. 207 Comment
  JEPS121310  Descurainia sophia Lowell Ahart 2013-4-20 18558 Butte Corral at the barn, about 1/4 mile N of Honcut Cemetery, about 3 1/4 air miles NE of Honcut. Comment
  UC398915  Dicentra formosa E. B. Copeland 1929-7-22 364 Butte Jonesville 1500 Comment
  CHSC105687  Dicentra formosa subsp. formosa Lowell Ahart 2010-9-21 17202 Butte About 50 yards east of the poor dirt road, about 100 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1917 Comment
  CAS-BOT-BC402562  Dicentra uniflora Lowell Ahart 1988-3-28 5955 Butte Near Lumpkin Ridge Road, about 1 1/2 miles east of Camp 18, about 8 miles east of Feather Falls 1280 Comment
  CHSC56757  Dicentra uniflora J. Monelo; B. Castro 1990-4-16 185 Butte Butte meadows- Humboldt Rd ca 1.9 mi n from Hwy 32 n facing rock ca 100 ft nw of Humboldt Rd. 1341 Comment
  JEPS108960  Dichanthelium acuminatum subsp. fasciculatum Lowell Ahart 2006-9-11 13307 Butte South edge of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville 431 Comment
  POM116006  Dichanthelium acuminatum var. fasciculatum C. C. Bruce 1897-05 1879 Butte Little Chico Comment
  SEINET10508815  Dichanthelium lanuginosum Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4138 Butte T20N R5E se/ne sec 10. Along edge of East Fork Canyon Creek, near Ponderosa Way (Big Ridge Rd), ca. 14 mi ne of Oroville. Foothill Woodland; 500 m. 500 Comment
  SEINET12050634  Dichelostemma capitatum L. R. Perry 1988-1 10 Butte vic. Salmon Hole, ca 5 mi E of Chico Municpal Golf Course 122 Comment
  CHSC92530  Dichelostemma capitatum subsp. capitatum L. P. Janeway 2005-3-1 8339 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  HSC32647  Dichelostemma capitatum subsp. capitatum Dave Knorr 1974-4-20 121 Butte On Pentz Rd. near intersection with Clark Rd. Comment
  CAS-BOT-BC483252  Dichelostemma capitatum subsp. pauciflorum Lowell Ahart 1970-2-25 s.n. Butte Peter Ahart Ranch, Honcut 150 Comment
  CAS-BOT-BC483253  Dichelostemma capitatum subsp. pauciflorum Lowell Ahart 1980-3-22 2049 Butte Peter Ahart Ranch, Honcut 50 Comment
  CHSC2070  Dichelostemma congestum V. Holt 1935-5-26 Butte Humboldt road 76 Comment
  JEPS26745  Dichelostemma multiflorum P. C. Hutchison 1961-6-9 2090 Butte 7 mi s Jarbos Gap (along U.S. Hwy 40 Alt., canyon of the North Fork of the Feather River); Canyon of the North Fork of the Feather River Comment
  CAS-BOT-BC501078  Dichelostemma multiflorum Lowell Ahart 1985-6-17 5057 Butte 100 yards south of the dirt rood, 1 1/2 miles east of Camp 18, about 8 miles northeast of Feather Falls 975 Comment
  CAS-BOT-BC501091  Dichelostemma multiflorum C. R. Quick 1941-6-8 41 -02 Butte About 2 miles south of Big Bar Mt. Comment
  SEINET10839403  Dichelostemma multiflorum Lowell Ahart 1985-6-17 Ahart 5057 Butte Lumpkin Ridge, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. Comment
  SD6374  Dichelostemma volubile Mrs. R. M. Austin 1883-1 Butte No further locality information on label. Comment
  SEINET12053854  Dichelostemma volubile Unknown 6 s.n. Butte no further locality Comment
  CHSC44383  Dichondra donelliana Lowell Ahart 1988-6-7 6035 Butte On the Henry Smith Ranch, about 1/4 mile west of the Oroville Bangor Highway, about 1/2 mile north-west of Bangor. 213 Comment
  CAS-BOT-BC208972  Digitaria ischaemum John Thomas Howell 1961-9-22 36734 Butte Bank of Feather River, Oroville - Sierra Nevada 53 Comment
  RSA126966  Digitaria sanguinalis H. S. Yates 1936-8-14 6118 Butte 10 miles S. of Durham 30 Comment
  CHSC7110  Diplacus angustatus F. Kimball 1969-4-19 46 Butte 20 yds, s of Wayland Rd. at Foster Rd. in wet track. 365 Comment
  SD234187  Diplacus douglasii Virginia Pinkus Ryder 1965-4-3 379 Butte Table Mtns. Open lava meadows. 381 Comment
  CHSC33585  Diplacus grandiflorus M. S. Taylor 1981-5-5 3599 Butte E side of Lumpkin-La Porte Rd, 1 mi n of Enterprise bridge over south fork Feather River, ca. 10 air mi e of Oroville. 457 Comment
  CHSC94933  Diplacus grandiflorus K. Lang 2005-5-5 42 Butte Lime Saddle Boat Launch, near Oroville. 279 Comment
  CHSC49001  Diplacus jepsonii Vernon Oswald 1984-7-2 1339 Butte Humbug Summit. 2320 Comment
  CAS-BOT-BC153213  Diplacus kelloggii Helen M. Edwards 1917-6-1 s.n. Butte De Sabla Comment
  CAS-BOT-BC153212  Diplacus kelloggii Lowell Ahart 1988-3-27 5944 Butte Along Poe Power House Road, about 1/2 mile north-west of the Poe Power House, about 1 1/2 miles south-east of Jarbo Gap 426 Comment
  CAS-BOT-BC153214  Diplacus kelloggii C. C., Mrs. Bruce 1897-4-1 2102 Butte Little Chico Comment
  CHSC46409  Diplacus layneae Lowell Ahart 1989-5-28 6292 Butte South of Oregon Gulch Road, about 1/2 mile north of the Cemetery, about 1 1/4 miles west of Rocky Point, about 10 miles east and 3 miles north of Oroville. 335 Comment
  CHSC44769  Diplacus torreyi R. Banchero 1980-6-17 246 Butte Along the Skyway 1.1 mi NE of its jct with Coutolenc Rd, 2.4 mi W of Stirling City. 865 Comment
  CHSC1800  Diplacus tricolor E. Canfield 1904-5-7 Butte Hooker Oak Field. 76 Comment
  CAS-BOT-BC154169  Diplacus tricolor Mrs. C. C. Bruce 1897-5-1 2107 Butte Fields Comment
  CHSC43281  Dipsacus fullonum Lowell Ahart 1987-9-4 5874 Butte Along the Biggs-Princeton Highway, under P.G. and E. power lines, about 1 mile west of Biggs. 28 Comment
  CHSC108592  Dittrichia graveolens L. P. Janeway 2011-10-20 10778 Butte Sacramento Valley. South end of Chico; along west side of Hwy 99 0.6 km south of Skyway/East Park Ave and 0.3 km south of Comanche Creek. 66 Comment
  RSA461468  Dodecatheon alpinum H. F. Copeland 1929-6-10 1215 Butte [Unspecified] 1524 Comment
  CHSC81291  Dodecatheon clevelandii subsp. patulum J. Trizzino 2001-2-22 4 Butte North side of Humboldt Road, ca. 0.5 mi east of intersection with Bruch Road, about 300' south of rock wall on grazed area. 112 Comment
  CHSC14051  Dodecatheon hendersonii J. F. Goodwin 1972-3-21 247 Butte Ca. 4 mi se on Cherokee Rd, from Hwy 70, ca. 500 ft w of road near oaks in cow pasture. Comment
  CDA6253  Dopatrium junceum G. D. Barbe, June McCaskill 1990-9-5 4395 Butte Experimental fields of the Rice Experiment Station, West Hamilton Road at Riceton Highway, north of Biggs. 0 Comment
  CHSC55483  Downingia bella L. P. Janeway 1991-5-2 3926 Butte 1 mi east of Palermo-Honcut Hwy and ca 2 1/2 mi north of Honcut. 38 Comment
  POM59142  Downingia bicornuta E. B. Copeland 1903-5-15 3176 Butte Chico. Comment
  RSA21491  Downingia bicornuta C. B. Wolf 1937-5-14 8673 Butte Sacramento Valley; 5 miles W of Chico on Hamilton City Road. 46 Comment
  SEINET12326987  Downingia cuspidata Unknown 1984-1 15 Butte Oroville, Small drainage area crossing Cottonwood Rd., S side, 3.2 mi E of its junction with State 46 Comment
  UC195392  Downingia insignis A. A. Heller 1914-5-30 11468 Butte about 6 mi nw Chico; Sacramento Valley Comment
  UCD149944  Downingia insignis TBS 1967-5-9 s.n. Butte Gray Lodge. Comment
  POM59144  Downingia ornatissima A. A. Heller, H. E. Brown 1902-5-14 5549 Butte Berry Canyon (near Clear Creek) Comment
  CHSC35015  Draba verna var. aestivalis R. E. Preston 1982-3-20 192 Butte Along trail to Bear Ranch Creek falls, at Hwy 70, ca. 22 mi nne of Oroville. 463 Comment
  SEINET10448473  Draba verna var. aestivalis Mary Susan Taylor 1979-3-19 Taylor 1929 Butte T23N R5E Pulga quad. In the vicinity of Pulga bridge over Feather River on Hwy 70, ca. 25 mi NE of Oroville. 488 Comment
  UC572409  Draperia systyla P. L. Johannsen 1936-7-28 966 Butte 2.25 miles north of junction of Butte Creek and Secret Creek; Paynes Creek Quad. 1280 Comment
  UCD170794  Drosera rotundifolia Barry Rice 2017-9-4 BR- 170901 Butte Butte Creek. 1500 Comment
  UC1562388  Drymocallis glandulosa var. glandulosa Vernon Oswald and Lowell Ahart 1990-6-27 4332 Butte between Four Trees and Coyote Gap Rd 23N31 nw Four Trees Rd.; between Four Trees and Coyote Gap 1463 Comment
  CHSC39351  Dryopteris arguta Lowell Ahart 1983-6-30 4171 Butte Along old Highway 40, near the water fountain, about 4 miles south of Jarbo Gap, Section 11. 350 Comment
  CHSC42954  Dryopteris arguta Lowell Ahart 1987-7-3 5751 Butte Along the edge of Power House Road, about 1 mile north-west of the Poe Power House, about 1 mile south-east of Jarbo Gap. 487 Comment
  JEPS122333  Dryopteris arguta Lowell Ahart 2014-8-24 19721 Butte On the south side of the road, about 150 yards southwest of the Forbestown Reservoir Dam, about 4 miles (air) northeast of Forbestown. Comment
  CAS-BOT-BC70856  Dryopteris arguta Lowell Ahart 1975-3-7 s.n. Butte 1/2 mile from the Forbestown Reservoir, Forbestown 365 Comment
  SEINET10470595  Dryopteris arguta Lowell Ahart, Peter Ahart 1983-6-30 Ahart 4171 Butte T21N R4E ne sec 11. Dark Canyon, along old Hwy 40, ca. 4 mi s of Jarbo Gap, ne of Oroville. Foothill Woodland; 350 m. 350 Comment
  CHSC36120  Dudleya cymosa K. Bridwell 1978-5-25 114 Butte Along n side of Skyway Rd, ca. 3 mi sw of Paradise. 609 Comment
  CAS-BOT-BC428073  Dudleya cymosa subsp. cymosa Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  CAS-BOT-BC428074  Dudleya cymosa subsp. cymosa Herbert Copeland 1920-5-1 s.n. Butte Jonesville Comment
  CHSC78073  Dudleya cymosa subsp. cymosa Caleb E. Casey 1999-5-11 Butte Green Gate road near 10 mile house, off Hwy 32. 365 Comment
  CAS-BOT-BC428072  Dudleya cymosa subsp. cymosa Junea Kelley 1920-4-24 s.n. Butte Los Vergils Comment
  CHSC36509  Dysphania ambrosioides L. Ahart 1981-9-26 3206 Butte On a sand bar near the Sacramento River. 40 Comment
  JEPS120583  Dysphania pumilio Lowell Ahart 2013-11-18 19272 Butte Below the high-water line of Lake Oroville, about 200 yards east of the boat ramp at the end of Stringtown Road, about 2.5 air miles northeast of Hurleton. Comment
  SBBG126093  Echinochloa crus-galli L. Ahart 2011-10-29 17727 Butte S side of Biggs Princeton Rd, ca 500 yards W of Riceton Hwy, ca 1 mi NW of Biggs 27 Comment
  SEINET231721 Image available Echinochloa crus-galli Lowell Ahart 1984-9-17 4792 Butte Peter Ahart Ranch ca 2.3 mi N and 0.3 mi E of Honcut ca 12 mi S of Oroville 50 Comment
  UCD60909  Echinochloa crus-galli L. Ahart 1984-9-17 4792 Butte Peter Ahart Ranch, ca. 2.3 mi N and 0.3 mi E of Honcut, ca. 12 mi S of Oroville. 50 Comment
  SEINET10564198  Echinochloa crus-galli Mary Susan Taylor 1979-11-11 Taylor 2284 Butte 6 mi S of Chico on W side of Goodspeed-Watt Road. With Jim Jokerst. Edge of ricefield. 34 Comment
  CDA2011  Echinochloa crus-galli var. crus-galli G. D. Barbe, T. C. Fuller 1977-9-2 2337 Butte Rice Experiment Station, Biggs. 0 Comment
  CAS-BOT-BC197251  Echinochloa muricata Lowell Ahart 1987-7-3 5758 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  SEINET239848 Image available Echinochloa oryzoides E. Dean, J. Ditomaso; E. Healy 2001-8-20 853 Butte Biggs UC Field Station 30 Comment
  SEINET10552489  Echinochloa oryzoides Crampton 1963-9-9 CRAMPTON 6887 Butte Butte County, 5 miles NW of Biggs, Biggs Rice Experiment Station. Comment
  CHSC31454  Echinodorus berteroi L. Ahart 1980-11-9 2692 Butte On the sides of the water hole on the Peter Ahart Ranch, ca. 1.5 mi n and 2 mi e of Honcut. 50 Comment
  CHSC34025  Echinodorus berteroi L. Ahart 1981-7-26 3014 Butte Ca. 1/2 mi s of the Gray Lodge Waterfowl Mgmt. HQ, ca. 12 mi sw of Gridley. 35 Comment
  CHSC42128  Elatine ambigua Lowell Ahart 1978-5-12 1716 Butte Peter Ahart Ranch, about 2-1/4 miles north and 1/4 mile east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC65778  Elatine heterandra Vernon H. Oswald 1996-4-10 7354 Butte Sacramento National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. 33 Comment
  CHSC51022  Eleocharis bella Lowell Ahart; Vern Oswald 1990-7-5 6550 b Butte Small meadow, about 1/2 mile north of Butte Creek House, about 2 miles north-east of Snag Lake. 1828 Comment
  CHSC78294  Eleocharis bolanderi Lowell Ahart 2000-7-7 8560 Butte Seeps, on the north side of Lumpkin Ridge Road, upper west branch of Know-nothing Creek, about 1 mile southwest of the intersection of Lumpkin Ridge Road, road to Fall River, and the County Road, about 4 miles (air) northeast of Feather Falls. 1219 Comment
  CHSC31666  Eleocharis macrostachya L. Ahart 1972-6-20 114 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC78188  Eleocharis macrostachya Lowell Ahart 2000-5-21 8376 Butte Slickens from the Cherokee mine, on the east side of Clark Road (Highway 191), about 200 yards south of Dry Creek, about 10 miles (air) northwest of Oroville. 60 Comment
  CHSC82383  Eleocharis montevidensis Lowell Ahart 2002-6-7 9710 Butte On the south side of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 38 Comment
  JEPS95984  Eleocharis obtusa Lowell Ahart 1999-10-28 8304 Butte large disturbed area along the east side of the Sacramento River; northwest of Parrott Landing; about 1 mile southeast of Ord Ferry; about 2 miles southeast of Ordbend; about 12 miles (air) southwest of Chico 32 Comment
  CHSC76304  Eleocharis parishii Lowell Ahart 1999-9-21 8277 Butte Large disturbed area along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  JEPS115253  Eleocharis radicans Lowell Ahart 2008-11-4 15403 Butte On the sides of Potter Ravine, in shallow water, below the high water line of Lake Oroville, about one mile north of the large parking area on the north end of Oroville Dam, about 5 miles (air) northeast of Oroville 242 Comment
  CAS-BOT-BC112032  Eleocharis suksdorfiana M. S. Taylor 1978-6-24 1668 Butte In Montane Meadow, on n side of Old Humboldt Rd across from Butte Meadows. 1371 Comment
  CHSC84055  Elymus caput-medusae Lowell Ahart 2003-5-15 10177 Butte Pasture fields, Peter Ahart Ranch, about 2 miles north and 2 miles east of Honcut, about 12 miles southeast of Oroville. 48 Comment
  CHSC8599  Elymus caput-medusae Dave Isle 1969-5-17 477 Butte On E. side of the Bare Hole turn-off from the Upper Bidwell Park road (E. of Chico). 59 Comment
  CHSC61551  Elymus elymoides subsp. californicus Lowell Ahart 1993-6-20 7005 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CAS-BOT-BC203427  Elymus glaucus subsp. glaucus H. F. Copeland 1930-7-21 1341 Butte Jonesville 1524 Comment
  CHSC109618  Elymus glaucus subsp. glaucus Lowell Ahart; Susan Bazell, Josephine Guardino 2012-5-31 18122 Butte 40 yards north of the paved park road (Peterson Drive) about 700 yards west of the gate, northwest of the parking area, Lower Bidwell Park, Chico 76 Comment
  CHSC69061  Elymus glaucus subsp. glaucus Lowell Ahart 1997-8-1 7783 Butte Near some small streamlets of Little Kimshew Creek, in Snow Meadow, about 1/4 mile east of Table Mountain, about 8 miles (air) northeast of Stirling City. 1524 Comment
  CHSC39310  Elymus multisetus Lowell Ahart 1983-6-26 4114 Butte Along Ponderosa Way, about 1/8 mile east of the intersection of the Oroville Quincy Highway and Ponderosa Way, about 15 miles north-east of Oroville. Note: the sign gives Big Ridge Road instead of Ponderosa Way. 500 Comment
  JEPS87480  Elymus stebbinsii Lowell Ahart 1993-6-26 7025 Butte ca. 1 mi. w. Lost Creek Reservoir (w. side of dirt rd., Mooreville Ridge); Mooreville Ridge 1188 Comment
  CHSC12627  Enemion occidentale M. S. Taylor 1974-3-16 81 Butte In Devil's Kitchen, Upper Bidwell Park, Chico. Comment
  CHSC28794  Enemion occidentale J. D. Jokerst 1979-3-31 183 Butte Just s of Little Chico Cr. Comment
  SEINET6635565 Image available Epilobium angustifolium subsp. circumvagum H. F. Copeland 1928-1 443 Butte neighborhood of Jonesville; above Jones Creek 1829 Comment
  CHSC43100  Epilobium brachycarpum Pauleen Broyles 1987-10-26 1088 Butte Wurlitzer Addition to Vina Plains Preserve. In area of Singer Creek. 55 Comment
  UCD105292  Epilobium brachycarpum L. E. Hazeltine 1916-8-2 s.n. Butte Chico. Comment
  CHSC117433  Epilobium campestre Lowell Ahart 2016-5-31 20906 Butte On the sides of a deep wash, about 1/8 mile east of Palermo Honcut Highway, Peter Ahart Ranch, about 2 1/4 miles north and 1/8 east of Honcut, about 12 miles (air) south of Oroville. 29 Comment
  CHSC13471  Epilobium canum subsp. latifolium J. R. Birmingham 1972-4-5 7 Butte Against cliff, ca. 1000 yds. se of Municipal Golf Building, Chico. 182 Comment
  CHSC28433  Epilobium ciliatum subsp. ciliatum J. D. Jokerst 1979-10-12 372 Butte 1.0 mi. N.E. of end of Upper Park Rd., 50 mrt. E. of Big Chico Cr. 213 Comment
  CHSC75969  Epilobium ciliatum subsp. ciliatum Lowell Ahart; Vernon H. Oswald 1999-8-13 8171 Butte Along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  POM173678  Epilobium ciliatum subsp. ciliatum H. F. Copeland 1923-6-4 920 Butte Nelson. Comment
  CHSC35105  Epilobium densiflorum R. Banchero; R. Schlising, M. Merryman 1979-10-7 21 Butte 7.7 mi S from intersection of Ord Ferry Road and Dayton Road, south of Chico; along canal. Comment
  SEINET12194727  Epilobium glaberrimum M. S. Taylor 1978-1 1726 Butte on N side of Butte Creek, ca 0.12 mi W of Road Island Jct, at jct of Butte Creek and Old Humboldt Rd 1524 Comment
  POM184022  Epilobium glaberrimum subsp. glaberrimum H. F. Copeland 1932-8-17 s.n. Butte Jonesville; in woods along Butte Creek 457 Comment
  CHSC58932  Epilobium hornemannii subsp. hornemannii Lowell Ahart 1992-7-26 6854 Butte In a small stream, about 1/2 mile north of the Carr Mine, about 2 (air) miles south of Snow Mountain. 1798 Comment
  UC1564730  Epilobium hornemannii subsp. hornemannii V. Oswald and L. Ahart 1989-7-21 3877 Butte ca 0.7 air mi se Summit Lake (ca 4.5 air mi se of Jonesville); southwest branch of Upper Butte Creek 1828 Comment
  CHSC109575  Epilobium minutum L. P. Janeway 2012-6-7 10866 Butte Northern High Sierra Nevada. Southwestern spur of Rocky Ridge, 0.6 air km south of Batchelor Point; along Road 23N06E 0.8 road km southeast of Rim Road/Ponderosa Way. 895 Comment
  SBBG32323  Epilobium minutum L. S. Rose 1963-6-2 Butte 2 mi S of Pulga, N Fork of Feather River 579 Comment
  CHSC46455  Epilobium oregonense V. Oswald; L. Ahart 1989-6-27 3824 Butte Humbug Rd at Butte Creek House, ca. 3.3 mi (air) se of Jonesville. In a meadow along Butte Creek. 1767 Comment
  CHSC36555  Epilobium pygmaeum L. Ahart 1982-7-10 3669 Butte Ca. 1/4 mi se of Headquarters, Graylodge Wildlife Refuge, ca. 12 mi w of Gridley. In a duck pond. 35 Comment
  SEINET7073008 Image available Epilobium torreyi A. G. Vestal 1963-5-31 s.n. Butte About 8.2 miles north-northwest of Oroville on Route 149. UTM Zone 10, 614599mE, 4384406mN. Coordinate datum: NAD27. Comment
  CHSC38887  Epipactis gigantea Vernon Oswald 1983-6-2 605 Butte Upper Bidwell Park, Chico, along Yahi Trail e of Brown's Hole. 207 Comment
  CHSC66067  Equisetum arvense Vernon H. Oswald 1996-5-22 7618 Butte U. S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Sacramento River National Wildlife Refuge, Llano Seco Unit. 30 Comment
  UC426894  Equisetum arvense E. B. Copeland 1930-6-28 402 Butte Jonesville 1500 Comment
  CHSC11938  Equisetum hyemale subsp. affine E. B. Copeland 1929-7-6 330 Butte Jonesville. Comment
  CHSC3147  Equisetum hyemale subsp. affine Gary Dutton 1966-4-23 241 Butte Found 6 miles north of Butte Meadows. Comment
  CAS-BOT-BC57255  Equisetum laevigatum E. B. Copeland 1930-6-24 403 Butte Jonesville 1500 Comment
  CHSC49542  Eragrostis cilianensis V. Oswald; R. Cunningham 1988-8-6 3682 Butte In s Chico, s of Park Ave., near the end of Paseo Campaneros. In the garden of Ruth and Glenn Cunningham. 64 Comment
  SEINET10562573  Eragrostis cilianensis Lowell Ahart 1988-7-24 Ahart 6134 Butte On dry bare disturbed soil, along the edge of La Porte Road, about 2 1/2 miles NE of Bangor. Foothill Woodland. 274 Comment
  CHSC97685  Eragrostis hypnoides Lowell Ahart 2007-11-3 14559 Butte Along a very small stream, below the high water line of Lake Oroville, about 3/4 mile east of the Power House below Kunckle Reservoir, about 1 1/4 miles north of the Lime Saddle Campground, about 5 miles (air) southeast of Paradise. 259 Comment
  JEPS76253  Eragrostis pectinacea var. pectinacea W. L. Jepson 1939-8-17 19465 Butte Feather River bottom near Oroville; Feather River bottom 45 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
  JEPS113670  Eragrostis pilosa var. pilosa Lowell Ahart 2007-8-19 14491 Butte About 2 1/4 miles (air) southeast of Honcut, about 13 miles (air) southeast of Oroville 49 Comment
  CHSC60278  Eremogone cliftonii L. P. Janeway 1987-5-20 2082 Butte Cyn of N Fk Feather R. N-facing slope just above hwy 70 3.1 mi NE of Pulga bridge. 472 Comment
Read comments
Jul 8 2014
  CHSC94018  Ericameria bloomeri R. Fischer 2005-9-5 664 Butte Location about 3 road miles north of Jonesville adjacent to county road 27N43, ca. 1 mile south of Humboldt Peak. Plants growing at edge of road on an open, rocky ridge in an area of mixed pine and fir forest. 1828 Comment
  CHSC45661  Erigeron bonariensis Vernon Oswald 1987-6-12 2991 Butte East side of Sacramento River just n of Golden State Island (perhaps technically in Glenn County because of shifting channel). 33 Comment
  CHSC46917  Erigeron bonariensis Lowell Ahart 1974-11-9 678 Butte On levees around a rice field, Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC103424  Erigeron canadensis Lowell Ahart 2009-11-19 16555 Butte On the west side of the trail, north side of the pond, about 30 yards northwest of the table, 100 yards south of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) west of Highway 32, about 10 miles northeast of Chico. 239 Comment
  CHSC58252  Erigeron foliosus var. hartwegii Lowell Ahart 1992-5-9 6756 Butte Along Oregon Gulch, Lake Oroville Recreation Area, about 1 1/4 miles west of Oroville Dam. 91 Comment
  SD5419  Erigeron glacialis var. glacialis E. B. Copeland 1930-7-12 Butte Above Jonesville 1800 Comment
  CHSC44154  Erigeron lassenianus var. lassenianus V. Oswald; L. Ahart 1988-7-26 3617 Butte Snow Mt. region located ca. 6 air mi se of Jonesville. 1996 Comment
  CAS-BOT-BC295771  Erigeron petrophilus var. sierrensis M. S. Taylor 1981-6-19 3962 Butte N side of Feather River Hwy 70, at nw end of Pulga bridge and along Pulga Rd, ca. 20 mi ne of Oroville Comment
  CHSC34042  Erigeron petrophilus var. sierrensis L. Ahart 1981-7-7 2932 Butte On a large hillside s of the rd, ca. 1/2 mi w of the Forbestown Reservoir, ne of Forbestown. 750 Comment
  RSA0118748  Erigeron petrophilus var. sierrensis Lowell Ahart 2014-8-24 19732 Butte On the south side of the road, about 50 yards west of Woodleaf Creek, about 1/2 mile southwest of the Forbestown Reservoir Dam, about 4 miles (air) northeast of Forbestown 611 Comment
  CAS-BOT-BC295951  Erigeron philadelphicus Lowell Ahart 1987-6-9 5741 Butte On the west side of the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  CHSC100467  Eriobotrya japonica Lowell Ahart; John Dittes, Josephine Guardino 2008-11-8 15419 Butte On the west side of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  CAS-BOT-BC216046  Eriodictyon californicum A. A. Heller 1915-4-20 11856 Butte 7 miles below Centerville in the Sierra foothills on the banks of Butte Creek 76 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
  UCD100307  Eriogonum luteolum P. Rodriguez-Rojo; D. Sanchez-Mata 1997-8-16 s.n. Butte Magalia. Westside of Magalia Res. 310 Comment
  JEPS94312  Eriogonum nudum var. pubiflorum Lowell Ahart 1997-8-1 7791 Butte about 8 air mi ne of Stirling City (about 1/4 mi e of Table Mountain, e of Snow Meadow, e of Little Kimshew Creek) 1524 Comment
  UC1562313  Eriogonum nudum var. pubiflorum Vernon Oswald and Lowell Ahart 1990-6-27 4337 Butte ca. 0.5 air mi ne Junction House (site) (Jordan Creek-Marble Creek Rd. (23N60) between Spoon Ravine and Marble Creek, e side of Oro-Quincy Hwy.) 1109 Comment
  UC489637  Eriogonum nudum var. pubiflorum A. A. Heller 1917-7-26 12823 Butte Butte Meadows 1402 Comment
  POM306193  Eriogonum nudum var. pubiflorum Henry J. Ramsey 1939-10-16 s.n. Butte Oroville Comment
  CHSC59563  Eriogonum roseum Lowell Ahart 1992-9-20 2923 Butte Below the high water line of Lake Oroville, about 1/8 mile west of the Enterprise Boat Launch Ramp, about 3/4 mile south-west of Rocky Point. 243 Comment
  SEINET782824 Image available Eriogonum umbellatum var. ahartii J. L. Reveal 1975-8-24 3977 Butte Along California Highway 70 in Feather River Canyon at the turnoff to Pulga Comment
  SEINET10479575  Eriogonum ursinum Mary Susan Taylor 1982-6-6 Taylor 4608 Butte T22N R5E ne/ne sec 6. Pulga SW quad. Pulga serpentine, along Pulga Rd, just n of its jct with Hwy 70, ca. 20 air mi ne of Oroville. 1600 ft. 488 Comment
  CHSC73976  Eriogonum ursinum var. ursinum B. Castro; L. Gehrung 1998-7-2 801 Butte Ca y air mi NW of Brush Creek, ca 0.5 mi E of Hungry Hunt Peak, ca 200 ft W of USFS Rd 23N28. 1091 Comment
  CHSC95179  Eriophorum gracile R. D. Fischer 2005-6-5 22 Butte Chico Meadows. Northern Sierra Nevada, n. of Forest Ranch, 5 miles w. of Hwy 32 off Humboldt Road to Butte Meadows and ca. 3 miles n. to Chico Meadow (Camp Lassen, BSC) on Scout Road. Plant growing in wet portion of Chico Meadow above pond. 1280 Comment
  SEINET10821160  Eriophyllum lanatum Melvin L. Conrad, David B. Dunn; Douglas G. LeDoux 1973-6-5 Conrad 7029 Butte 2.6 miles west of Paradise on Chico Road. 610 Comment
  CHSC4710  Eriophyllum lanatum var. grandiflorum R. Carter 1966-7-10 470 Butte Found Feather R. Canyon 4.4 mi. W of Butte Co. line along W side of Hwy. 70. 609 Comment
  UC201314  Eriophyllum lanatum var. grandiflorum A. A. Heller 1917-7-26 12821 Butte Butte Meadows 1402 Comment
  HSC27262  Erodium botrys J. P. Smith 1972-3-23 5095 Butte 1.6 mi. from junction with Hwy. 99 on road to Paradise Comment
  HSC8490  Erodium cicutarium William J. Ferlatte 1963-5-11 41 Butte Chico State College campus Comment
  CAS-BOT-BC41444  Eruca vesicaria subsp. sativa A. A. Heller 1914-7-11 11560 Butte Chico-Hamilton road 6 miles from Chico. Comment
  CHSC35701  Eryngium castrense J. D. Jokerst 1982-5-1 1549 Butte Top of North Table Mt. Ca 200 met SE of Cherokee Rd at the mesa's E edge. Comment
  UCD127489  Eryngium castrense W. R. Powell 1970-4-8 1700 Butte 2.5 miles southwest of Oroville. 73 Comment
  CHSC9287  Erysimum capitatum var. capitatum D. C. Burns 1971-4-3 116 Butte At base of cliff, ca. 3.5 mi e of Jarbo, (2.5 mi w of 1st bridge that crosses the n fork of the Feather River). 609 Comment
  CHSC62588  Erythranthe bicolor L. P. Janeway 1993-6-10 4382 Butte Plumas National Forest. Southwest side of Watson Ridge, ca. 1.5 mi east of Bald Rock Dome. 822 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
  CHSC51924  Erythranthe glaucescens S. B. Collom 1988-4-25 11 Butte Chico: 100 yds E from 5th Ave bridge in Lindo Channel, on N side. Comment
  SEINET8205909  Erythranthe glaucescens Lowell Ahart 2006-5-10 12614 Butte north side of the poor dirt road, Bardees Bar Road, about 100 yards north of the poor bride across the North Fork of the Feather River at Bardees Bar, about 2 1/2 miles (air) southwest of Pulga. 354 Comment
  CHSC11898  Erythranthe guttata E. B. Copeland 1929-7-28 464 Butte Jonesville. 1500 Comment
  CHSC2527  Erythranthe guttata W. Fitzwater 1958-3-15 Butte Rock Creek, Chico area. 243 Comment
  CHSC90162  Erythranthe guttata Evelyn Jo Baker 1984-3-28 4 Butte E side of Hwy 70, 1 mi se of intersection with Hwy 149, 6 mi nw of Oroville. 57 Comment
  CHSC94605  Erythranthe guttata Lowell Ahart 2006-9-13 13322 Butte South edge of the North Fork of the Feather River, about 100 yards west of the Cresta Power House, north side of Highway 70, about 2 3/4 miles northeast of Pulga, about 23 miles (air) northeast of Oroville. 437 Comment
  SEINET8340799  Erythranthe latidens A. A. Heller 1914-5-1 11343 Butte on the Chico-Hamilton road, 6 miles from Chico in a low grain field. Comment
  CHSC44816  Erythranthe pulsiferae R. Banchero 1980-6-12 208 Butte Along Hwy 32 ca 3.9 mi S of its jct with Humbolt Rd, 8.3 mi N of the town of Forest Ranch. 999 Comment
  CHSC32643  Erythronium multiscapideum M. S. Taylor 1981-4-2 3473 Butte S side of rd 20N67A (old RR bed) at curve in rd, ca. 1/10 mi s of its jct with 20N67, ca. 1/4 mi nw of Lumpkin Rd, ca. 1.5 mi w of Feather Falls. Comment
  CHSC42009  Erythronium multiscapideum Lowell Ahart 1976-4-15 1080 Butte Along Swede's Flat Road, about 2 miles east of the Bangor Oroville Highway, north-east of Bangor. 457 Comment
  CHSC49690  Erythronium multiscapideum Vernon Oswald 1985-4-3 1697 Butte Concow Rd. n of Lake Concow. 792 Comment
  CHSC51944  Erythronium multiscapideum Laraine Roothoff 1979-4-18 7 Butte 3 mi N of Magalia Reservoir on Skyway Rd, then 0.5 mi W of Holly Rd 0.2 mi W of road's end. 762 Comment
  CAS-BOT-BC504538  Erythronium multiscapideum M. S. Taylor 1981-4-21 3551 Butte W side and downslope from spur rd (to Old Utah Mine) off Ponderosa Way (Jordan Hill Rd) ca. 1 air mi ne of Magalia 853 Comment
  CHSC43796  Erythronium purpurascens Vernon Oswald 1984-7-12 1575 Butte High Lakes Rd. near the Plumas Co. line. 1981 Comment
  CAS-BOT-BC402968  Eschscholzia californica A. A. Heller 1914-4-3 s.n. Butte Hills 8 miles north of Oroville Comment
  CHSC24874  Eschscholzia californica P. Goldman 1976-4-4 15 Butte On west side of Cohasset Hwy, ca. 8 mi n of Chico. 121 Comment
  CHSC37283  Eschscholzia californica M. S. Taylor 1982-5-2 4388 Butte Pulga serpentine oucrops on n side of Hwy 70 at Pulga bridge, ca 20 mi ne of Oroville. 487 Comment
  CHSC3564  Eschscholzia lobbii R. D. Briggs 1966-3-6 63 Butte North end of Bidwell Park golf course, Chico. Comment
  RSA590210  Eschscholzia lobbii Michael A. Vincent, Robert Rhode, Jim Snowden 1996-3-29 7235 Butte North Table Mountain, W of Cherokee Rd. N of Oroville. S side of Beatson Hollow, from center to west edge of butte. Comment
  JEPS114196  Eucalyptus camaldulensis L. P. Janeway 2008-1-9 9228 Butte Northern Sierra Nevada Foothills. Southwest corner of Kelly Ridge, Oroville; 740 m south-southwest of the southern end of Oroville Dam, at junction of Oro-Dam Blvd and Canyon Drive. Comment
  CAS-BOT-BC312032  Eucephalus breweri J. D. Jokerst; M. S. Taylor 1979-7-21 2165 Butte On trail to Humboldt Peak on Humboldt Summit 2133 Comment
  CAS-BOT-BC312033  Eucephalus breweri Vernon Oswald; Lowell Ahart 1987-8-5 3178 Butte Near Humboldt Peak 2148 Comment
  SEINET10475035  Eupatorium occidentale Mary Susan Taylor 1980-8-2 Taylor 3216 Butte T27N R5E center sec 32, Jonesville quad. Humboldt Peak, N tip of the county. 2155 Comment
  CAS-BOT-BC202427  Euphorbia ocellata A. A. Heller 1913-9-16 11140 Butte Hills near Big Chico Creek, east of Chico Comment
  SD126343  Euphorbia serpillifolia Lowell Ahart 1985-10-12 5200 Butte End of Nelson Bar Road, south of Kunkle Reservoir, South of Paradise 298 Comment
  JEPS94953  Euphorbia spathulata Lowell Ahart 1997-3-25 7714 Butte about 12 air mi se of Oroville (about 2 1/4 mi n and 2 1/2 mi e of Honcut, w of the ditch for the Old Honcut Flume, w of North Honcut Creek) 60 Comment
  UC1586603  Euphorbia spathulata Vernon H. Oswald and Lowell Ahart 1991-5-11 4576 Butte Loafer Creek Recreation Area Lake Oroville (along Roy Rodgers Trail, near the group camps) 341 Comment
  CAS-BOT-BC312201  Eurybia radulina Lowell Ahart 1980-9-10 2640 Butte 7 miles east of Milsap Bar, Sierra Nevada 1200 Comment
  CAS-BOT-BC413861  Fallopia convolvulus Lowell Ahart 1983-8-10 4269 Butte Along La Porte Road, about 4 miles north-east of Bangor 350 Comment
  CHSC38794  Festuca arundinacea Vernon Oswald 1983-5-9 462 Butte Upper Bidwell Park, Chico, along Yahi Trail where it follows the margin of Chico Creek e of Brown's Hole. 207 Comment
  CHSC49545  Festuca arundinacea Vernon Oswald 1985-5-13 1756 Butte Upper Bidwell Park, Chico, on the s perimeter of the Police Pistol Range. 91 Comment
  POM206211  Festuca elmeri A. A. Heller 1902-5-16 5562 Butte Marysville Buttes (rocky slope of East Butte) Comment
  CHSC42919  Festuca occidentalis Lowell Ahart 1987-7-8 5801 Butte Along Big Bar Mountain Road, about 3 miles south-west of Coyote Gap, south-east of Pulga. 1280 Comment
  RSA754865  Festuca subulata L. Ahart 2008-6-2 14807 Butte South side of Ponderosa Way, about 1 air mile SW of the Ponderosa Dam, about 2.25 air miles NW of Forbestown. 671 Comment
  JEPS88545  Foeniculum vulgare Vernon H. Oswald and Lowell Ahart 1996-7-22 8076 Butte U.S. Fish & Wildlife Service parcel betw. 7 Mile Lane and Sacramento R. (edge of levee rd. along n. side of Tract 6 - Sanctuary 1); Sacramento R. Nat'l Wildlife Refuge, Llano Seco Unit 33 Comment
  CAS-BOT-BC437082  Fragaria virginiana subsp. platypetala H. F. Copeland 1929-6-10 1206 Butte Jonesville 1524 Comment
  CAS-BOT-BC437083  Fragaria virginiana subsp. platypetala E. B. Copeland 1929-7-16 373 Butte Jonesville 1550 Comment
  CAS-BOT-BC437084  Fragaria virginiana subsp. platypetala E. B. Copeland 1929-7-16 373 Butte Jonesville 1550 Comment
  CAS-BOT-BC62904  Frangula californica subsp. tomentella Helen M. Edwards 1917-6-1 s.n. Butte De Sabla Comment
  JEPS119744  Frangula californica subsp. tomentella Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-17 18072 Butte On the sides of a horse trail, about 50 feet south of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  SJSU7511  Frangula californica subsp. tomentella L. S. Rose 1968-6-12 68113 Butte Feather R Canyon, Pulga 487 Comment
  UCD112766  Frangula californica subsp. tomentella Joseph M. DiTomaso 1976-5-23 460 Butte peninsula on south end of Lake Oroville. 274 Comment
  CAS-BOT-BC55657  Frangula purshiana C. R. Quick 1953-8-11 53 -126 Butte Rag Dump Meadow se. of Stirling City Comment
  SEINET10493572  Frangula purshiana Mary Susan Taylor 1981-5-13 Taylor 3703 Butte 4000 ft. T22N R6E ne sec 5, Pulga SE quad. Along creek crossing 22N66X (old RR bed) just N of Foreman Creek, ca. 1.5 mi S of Four Trees Rd, ca. 0.5 mi W of Elks Retreat on Oroville-Quincy Hwy. 1219 Comment
  CDA38769  Fraxinus dipetala L. Ahart 2012-4-2 17896 Butte On the west side of South Rim Trail, about 5/8 mile west of Highway 32, about 8 1/2 mile northeast of Chico, south part of Upper Bidwell Park. Comment
  CHSC46117  Fraxinus dipetala L. P. Janeway; B. Castro 1989-4-12 3216 Butte Ridge overlooking Little Chico Cr; along the old hwy (hwy 32) near Crown Pt. Dr. 449 Comment
  POM76346  Fraxinus dipetala C. C. Bruce 1898-03 2471 Butte Foothills [no specific locality given] Comment
  SEINET10457422  Fraxinus dipetala Mary Susan Taylor 1980-4-18 Taylor 2522 Butte E side of Humbug Road, ca. 2 mi NE of Centerville; on dry bluff. With J.D. Jokerst. 488 Comment
  CHSC1085  Fraxinus latifolia 1954-5-30 Butte Nelson's Bar, West Branch of Feather River. 304 Comment
  CHSC115408  Fraxinus latifolia M. Rogers 2013-5-4 Butte Pine Creek Unit of SRNWR near Hwy 32. 39 Comment
  JEPS120065  Fraxinus latifolia Lowell Ahart 2012-5-17 18086 Butte On the north side of Big Chico Creek, on the south side of the paved park road, south of the old walnut orchard, south of Vallombrosa Avenue, about 1/10 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  CHSC86423  Fritillaria affinis R. D. Fischer; Paul Maslin 2004-2-7 57 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). Plants located about half mile south of main entrance. UTM: 10 609847E 4408885N. 381 Comment
  CDA14072  Fritillaria eastwoodiae G. F. Hrusa, T. D. Wilfred 1997-5-1 13719 Butte Sierra Nevada; NE side of upper end of Paradise Lake. Where last tributaries from E enter. Comment
  HSC72756  Fritillaria eastwoodiae M. S. Taylor, D. V. Hemphill 1981-3-18 3430 Butte Ridge NNW of sawmill Peak of Jordan Hill Rd., 1.0 mi. NE of Magalia 701 Comment
  SEINET10905373  Fritillaria eastwoodiae Mary Susan Taylor, L. Hanson 1981-4-2 Taylor 3475 Butte T23N R4E northcentral sec 30; Paradise quad. Ca. 1/5 mi se of Ponderosa Way Bridge over West Branch Feather River, in Genii Mine area, ca. 3/4 mi ne (and downhill) of Magalia. Steep serpentine slope; 1800 ft. 549 Comment
  RSA31669  Fritillaria pluriflora A. A. Heller 1916-3-5 s.n. Butte Along Hwy 10 miles north of Chico Comment
  CHSC92557  Fritillaria recurva L. P. Janeway 2005-4-25 8366 Butte Northern High Sierra Nevada. Plumas National Forest; ridgetop northern end of Rocky Ridge; just above Rim Road (Ponderosa Way) 200 m east-southeast of junction with Concow Road; head of upper side drainage of Flea Valley Creek. 988 Comment
  CAS-BOT-BC508150  Fritillaria recurva A. A. Heller 1919-5-17 s.n. Butte Banks of the Feather river near Stirling Comment
  CHSC47477  Galium aparine Lowell Ahart 1974-4-14 398 Butte Peter Ahart Ranch, about 1 mi north and 1 1/4 miles east of Honcut, about 12 miles south of Oroville. 48 Comment
  CHSC54164  Galium aparine Lowell Ahart 1991-4-19 6646 Butte On the west side of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 2 and 3/4 miles east of Honcut, about 12 miles south-east of Oroville. 45 Comment
  CHSC93456  Galium aparine Lowell Ahart 2006-5-8 12597 Butte Steep bank on the south side of a small stream, about 50 yards east of the fence and reservoir, about 2 1/4 miles west of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 296 Comment
  UC426968  Galium bifolium E. B. Copeland 1930-6-28 473 Butte Jonesville 1650 Comment
  CHSC102984  Galium bolanderi Lowell Ahart 2009-6-3 15813 Butte On the west side of the trail, about 150 yards southwest of the table at the old homestead and Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 273 Comment
  CHSC34229  Galium bolanderi M. S. Taylor 1981-5-5 3611 Butte W side of spur rd, ca. 1.5 air mi NW of its jct with 21N35Y, ca. 1 air mi N of Feather Falls. 792 Comment
  UC195388  Galium bolanderi A. A. Heller 1914-7-24 11627 Butte slopes near Forest Ranch 731 Comment
  SEINET10500698  Galium bolanderi Mary Susan Taylor 1978-7-21 Taylor 1801 Butte Vicinity of Lake Madrone, at Oroville- Quincy Hwy turnoff, ca. 10 mi NE of Oroville; Yellow Pine Forest. 610 Comment
  CDA34715  Galium murale L. Ahart 2010-5-28 16748 Butte Cedar Grove Parking Area, in Lower Bidwell Park, Chico. Comment
  CHSC82401  Galium murale Lowell Ahart 2002-5-7 9631 Butte High banks of a pond, at the beginning of a southeast branch of Schirmer Ravine, about 50 yards east of the pond on the east side of Cherokee Road, North Table Mountain, about 4 miles (air) north of Oroville. 228 Comment
  UCSB63626  Galium nuttallii subsp. nuttallii Kirkpatrick, R. 1972-4-23 Butte ca. 30 yds. s Hwy. 32 and ca. 2 mi e Crown Point Rd. 609 Comment
  CHSC1615  Galium porrigens var. tenue M. Roberson 1956-4-9 Butte SW of Paradise. 426 Comment
  CHSC55406  Galium porrigens var. tenue Charlie Crannell 1991-4-22 9 Butte 10.4 mi NE of Chico near Hwy 32. 243 Comment
  CHSC64217  Galium trifidum var. pacificum S. C. Morey 1983-8-1 654 Butte On E side of Scout Rd., ca. 1 mi N of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  SEINET10500748  Galium trifidum var. pacificum Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4750 Butte Along the road, about 1 1/2 mile south-east of Bald Mountain, 1/4 mile east of Oak Point, about 5 miles north-east of Stirling City. Comment
  CHSC47481  Galium trifidum var. pusillum Lowell Ahart 1981-8-15 3031 Butte On the north side of Snag Lake, about 10 miles north of Inskip. 1767 Comment
  SEINET10500749  Galium trifidum var. pusillum Mary Susan Taylor, Lowell Ahart 1981-8-15 Taylor 4187 Butte T26N R5E ne 1/4 ne 1/4 sec. 30. Jones- ville SW quad. N end of Snag Lake (dry this year), dry clay soil, Yellow Pine Forest and Montane Meadow, E side of Humbug Rd. ca. 14 mi NE of Stirling City. 5700 ft. 1737 Comment
  CHSC27238  Gardenia jasminoides P. Moyer 1971-9-25 1 Butte CSUC Campus. E side of University Service Bldg. along walkway to bridge. 60 Comment
  CHSC108850  Garrya fremontii Lowell Ahart 2012-3-2 17759 -A Butte About 200 yards north of Ten Mile House Road, about 200 yards west of Highway 32, about 9 miles northeast of Chico. 422 Comment
  CHSC102162  Gastridium phleoides Lowell Ahart 2009-6-19 15931 Butte On dry rocky soil, on the sides of the cutoff trail, on the south side of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 2/3 mile (air) west of Highway 32, about 10 miles northeast of Chico. 267 Comment
  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
  CHSC93870  Gastridium phleoides Lowell Ahart 2006-6-9 12652 Butte On the east side of Bardees Bar Road, south of the small stream, about 1/4 mile southwest of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga. 403 Comment
  RSA716153  Gastridium phleoides L. Ahart 2005-7-13 12149 Butte About 20 yards east of the intersection of Forbestown Road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown, about 12 miles (air) east of Oroville. 759 Comment
  JEPS107518  Gastridium ventricosum Lowell Ahart 2005-7-13 12149 Butte About 20 yards east of the intersection of Forbestown Road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown, about 12 miles (air) east of Oroville 759 Comment
  CHSC109532  Gaultheria ovatifolia L. P. Janeway; Tom Carlberg, Linnea Hanson+ 2012-5-27 10825 Butte Northern High Sierra Nevada. Along the road to Sly Creek Reservoir dam, 0.9 road km west of the south end of the dam; overlooking the upper end of Lost Creek Reservoir from the south. 1035 Comment
  SEINET10453072  Gayophytum diffusum subsp. parviflorum Mary Susan Taylor 1977-8-17 Taylor 1459 Butte Abundant on E side of Humboldt Road, in thin, dry rocky soil, open area in Yellow Pine Forest, ca. 4.5 mi NE of Butte Meadows turnoff from Hwy 32. 1326 Comment
  SEINET12193693  Gayophytum humile R. Banchero, Schlising, R. A. 1980-1 3905 Butte N part of county at N end of Snag Lake 1731 Comment
  UC1128922  Genista monspessulana C. G. Albertus 1933-6-6 15 Butte 1 mi. n.w. Nelson's Bar; Chico Quad. Comment
  CHSC51884  Gentianopsis simplex L. P. Janeway 1988-7-29 3120 Butte Mdw near Humbug Summit Rd 1.5 mi NE of the Snag Lake dam. 1767 Comment
  SEINET10454851  Gentianopsis simplex Mary Susan Taylor 1977-8-17 Taylor 1495 Butte Scattered in Montane Meadow on S side of Humbug Rd, ca. 1 mi N of Snag Lake. 1829 Comment
  CHSC672  Geranium carolinianum V. Holt 1935-3-30 Butte Chico Creek ridge. 365 Comment
  CHSC31734  Geranium dissectum L. Ahart 1975-4-6 742 Butte On the edge of North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC35699  Geranium dissectum J. D. Jokerst 1982-5-1 1555 Butte North Table Mountain. Locally abundant in ephernal seep ca. 200 Met E of Phantom Falls (at the N fork of Coal Cr. canyon). Comment
  RSA29020  Gilia capitata Lincoln Constance 1941-5-28 2827 Butte S Branch of the Feather River at Magalia, Sierra Nevada foothills. 488 Comment
  UCD14392  Gilia tricolor Maura Cullinane 1983-4-1 5 Butte Butte Co.; from Interstate 80 go north onto 99, pass Chico, take the Cohasset exit NE, turn right on Richardson's Springs Road, drive form 3 mi. to Springs of Living Water Camp; cabins off to the right, go ca. 100 ft. east of Cabin 17; Comment
  UC1537502  Gilia tricolor subsp. diffusa Gordon H. True Jr. 1936-3-27 384 Butte near West Butte (canyon on n side of Marysville Buttes); n side Marysville Buttes, near West Butte 76 Comment
  CHSC3229  Ginkgo biloba Virginia Hagaman 1966-5-5 165 Butte Chico State College Campus. Comment
  CHSC44275  Githopsis pulchella subsp. campestris Vernon Oswald 1988-6-14 3381 Butte Jordan Hill Rd. 1.1 mi (odometer) n of Griffin Gulch. 688 Comment
  CHSC50106  Githopsis pulchella subsp. campestris Vernon Oswald 1990-4-24 4170 Butte Lime Saddle Recreation Area on the West Branch of Lake Oroville, ca. 0.2 mi northeast of Nelson Bar Launch, ca. 0.2 mi east of Lime Saddle Powerhouse. 292 Comment
  SEINET10873414  Githopsis pulchella subsp. campestris A. Arthur Heller, H. E. Brown 1902-5-14 Heller 5548 Butte Berry Canyon, near Clear Creek Comment
  UC727174  Githopsis pulchella subsp. campestris A. A. Heller 1941-5-9 16106 Butte Clark Road, foot of the Paradise grade Paradise Grade Comment
  CHSC101128  Githopsis specularioides Lowell Ahart 2009-4-22 15572 Butte On the west side of Guardians Trail, about 100 yards north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  CHSC12169  Githopsis specularioides Lowell Ahart 1973-5-6 Butte Swedes Flat Road, near Bangor. 457 Comment
  CHSC97346  Githopsis specularioides R. Fischer 2006-4-30 993 Butte Chico. Sierra Nevada foothills, adjacent Hwy. 32, below Forest Ranch in the Big Chico Creek Ecological Reserve off Lookout Trail. 518 Comment
  SEINET10464591  Githopsis specularioides Watts 1974-4-30 Watts 29 Butte About 15 miles northeast of Chico on Cohasset road Comment
  CHSC76420  Glinus lotoides Lowell Ahart 1999-10-28 8297 Butte On the bottom of a small wash, just southeast of the small pond where you can park, large disturbed area along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  SEINET10537439  Glinus lotoides Lowell Ahart 1990-10-5 Ahart 6628 Butte On the bottom of McCabe Creek, below the high water line of Lake Oroville, about 1/4 mile south-west of the Enterprise Bridge across Lake Oroville. Foothill Woodland (destroyed). T19N R6E NW/S7. 229 Comment
  CAS-BOT-BC282821  Glyceria X occidentalis L. P. Janeway 1991-6-7 3990 Butte Ca 0.8 mi. east of Palermo-Honcut Road ca. 5.1 mi. south of Palermo 38 Comment
  POM358819  Gnaphalium chilense H. F. Copeland 1923-6-4 520 Butte Nelson. Comment
  CAS-BOT-BC302469  Gnaphalium palustre A. A. Heller 1917-7-28 12827 Butte Butte Meadows 1280 Comment
  CHSC60953  Gnaphalium palustre Lowell Ahart 1993-7-6 7048 Butte On the south side of the dirt road, about 1/4 mile west of the Lost Creek Reservoir. 1036 Comment
  RSA4455  Gnaphalium palustre E. B. Copeland 1931-7-18 694 Butte Jonesville. 1500 Comment
  UC1609043  Gnaphalium palustre Lowell Ahart 1993-7-23 7103 Butte about 100 yds w bridge across river (about 6 air mi ne of Feather Falls, sand bar on w side of river); Fall River 1036 Comment
  UCR143347  Gnaphalium palustre H. F. Copeland 1928-8-17 679 Butte Jonesville 1524 Comment
  SEINET6167160  Goodyera oblongifolia P. B. Kennedy 1901-8-15 407 Butte Bearmans camp, north fork of American River Comment
  JEPS98418  Gratiola ebracteata Lowell Ahart 2000-6-6 8450 Butte 5 mi (air) E of Oroville Dam (sides of an old gold mining pit, SE of where the dirt road crosses Oregon Gulch Creek, 1/4 mi NE of cemetery, 1 1/2 mi S of Crystal Hill) 304 Comment
  RSA169400  Gratiola ebracteata L. S. Rose 1963-6-5 6314 -2 Butte 3 mi. w of Palmero 46 Comment
  CHSC23381  Grevillea banksii 1966-3-31 Butte Comment
  POM161686  Hackelia nervosa E. B. Copeland 1929-7-17 s.n. Butte About Jonesville. 2000 Comment
  CAS-BOT-BC282856  Hainardia cylindrica Lowell Ahart 1980-6-15 2382 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC302419  Hazardia whitneyi J. D. Jokerst 1980-10-13 396 Butte Along edges of Jordan Hill Road 7.5 miles north of jct. with Concow Road, 1 mile SE of Sawmill Peak 944 Comment
  JEPS119776  Hedypnois rhagadioloides Lowell Ahart 2012-5-12 18032 Butte On the sides of South Rim Trail, about 1/2 mile southwest of the old homestead, about 5/8 west of Highway 32, south part of Upper Bidwell Park, about 8 /12 miles (air) northeast of Chico. Comment
  SEINET10487247  Hedysarum boreale Mary Susan Taylor 1981-5-22 Taylor 3799 Butte Open grassy areas around a landing, ridge N of Flea Valley Creek drainage and above Pulga, about 5 air mi E of Magalia. 1006 Comment
  CHSC31428  Helenium bigelovii L. Ahart 1980-7-20 2479 Butte Near the edges of seeps, near Bean Creek Rd, on the s side of Little Bald Rock, ca. 15 mi ne of Oroville. 1100 Comment
  CAS-BOT-BC309401  Helenium puberulum Lowell Ahart 1987-6-9 5721 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  CHSC47656  Helianthus bolanderi Lowell Ahart 1989-9-17 6387 Butte On the west side of North Honcut Creek, about 2 1/2 miles north and 2 1/2 miles east of Honcut, about 12 miles south-east of Oroville. 60 Comment
  CHSC117400  Heliotropium europaeum Lowell Ahart 2016-5-30 20888 Butte On the bottom of a deep wash (west of where we removed gravel), Peter Ahart Ranch, about 1 1/2 miles north and 1 1/8 miles east of Honcut, about 12 miles (air) southeast of Oroville. 31 Comment
  RSA722688  Heliotropium europaeum R. R. Halse 2006-8-2 6978 Butte Chico. In the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  CHSC111160  Helminthotheca echioides Lowell Ahart 2012-6-21 18221 Butte About 15 yards east of the Freeway, South of Big Chico Creek, Lower Bidwell Park, Chico. 62 Comment
  CHSC25344  Hemizonia congesta subsp. luzulifolia M. Hayes 1977-7-3 23 Butte Along Pentz Rd. 2.0 km east of Highway 99. 80 Comment
  CAS-BOT-BC309787  Hemizonia congesta subsp. luzulifolia Lowell Ahart 1982-9-9 3768 Butte About 100 meters north of the Check-in-Station, Gray Lodge, about 12 miles south-west of Gridley 35 Comment
  CHSC62723  Herniaria hirsuta subsp. hirsuta L. P. Janeway 1993-6-3 4367 Butte Plumas National Forest. South end of Swayne Hill, along the road to Big Bar Mtn (23N28). At edge of graveled road. 731 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
  UCD73011  Hesperevax acaulis Ayzik Solomeshch 2003-4-9 s. n. Butte Wurlitzer Reserve, about 10 mi. north from Chico on Hwy 99, west side of the road. Comment
  CHSC45497  Hesperocnide tenella Lowell Ahart 1974-4-14 399 Butte Peter Ahart Ranch, about 1 mile north and 1 1/4 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CAS-BOT-BC175999  Hesperolinon californicum Lowell Ahart 1988-5-12 5987 Butte About 1/2 mile north-east of the Honcut Cemetery, Joie Osgood Ranch, about 3 1/2 miles east and 1 1/2 miles north of Honcut 60 Comment
  CHSC58673  Hesperolinon californicum M. Bailey 1991-5-25 Butte Growing on thin soils on a slope on Butte College campus, ca 300 ft east of Williams Road, nw portion of the campus. 83 Comment
  CAS-BOT-BC175997  Hesperolinon californicum Lowell Ahart 1977-5-11 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CHSC29090  Hesperolinon micranthum M. S. Taylor; J. D. Jokerst 1980-5-15 2637 Butte Ca. 1/4 mi e of Cohasset Rd, on Cohasset Ridge, ca. 9 mi ne of Chico. 396 Comment
  JEPS98429  Hesperolinon micranthum Lowell Ahart 2000-5-31 8427 Butte 3 mi SE of Paradise (just W of Lake Oroville, about 400 yds E of where Kunkle Creek enters Lake Oroville, E of the Kunkle Power House) 286 Comment
  POM312837  Heteranthera dubia H. L. Mason, Verne Grant 1946-8-14 13041 Butte Butte Sink Comment
  CDA2655  Heteranthera limosa G. D. Barbe, C. Wick, June McCaskill 1983-9-14 4103 Butte Cooperative Rice Experiment Station, Biggs. 0 Comment
  CHSC51861  Heterocodon rariflorum L. P. Janeway 1988-6-19 2832 Butte 3.1 mi N of Stirling City Towards Inskip. Along loggins rd 0.2 mi W of the Skyway. 1219 Comment
  CHSC78242  Heterocodon rariflorum Lowell Ahart 2000-6-27 8527 Butte North part of Big Bald Rock, area is about 100 yards south and west of the north and east forest line,about 3 miles (air) east of madrone Lake, about 12 miles (air) northeast of Oroville. 963 Comment
  UCSB63791  Heterocodon rariflorum Ahart, Lowell 1997-8-1 Butte Damp rocky dark soil, near some small streamlets of Little Kimshew Creek, in Snow Meadow, about 1/4 mile east of Table Mountain, about 8 miles (air) northeast of Stirling City. Uncommon, inconspicuous. Lodgepole Pine in a meadow in Red Fir Forest 1524 Comment
  CAS-BOT-BC143629  Heteromeles arbutifolia A. A. Heller 1913-12-5 11149 Butte In the canyon of Big Chico Creek east of Chico 91 Comment
  RSA719537  Heteromeles arbutifolia Michael A. Vincent, K. Levings 2006-7-29 12882 Butte E of Chico along Rt 32 Comment
  SEINET5733943 Image available Heteromeles arbutifolia Lowell Ahart 1985-1 5092 Butte Ca. 2.5 mi. NE of Forbestown. 200 yds. S of the dirt road to the Forbestown Res. Yellow Pine Forest.; Forbestown 899 Comment
  CHSC38362  Heterotheca grandiflora Vernon Oswald 1982-10-23 5 Butte Bidwell Park, Chico. On the s edge of the Diversion Channel near its junction with Lindo Channel at the location of the Old Horse Arena. 79 Comment
  JEPS103460  Heterotheca oregona var. rudis Lowell Ahart 2002-9-27 9940 Butte Along the E side of the Sacramento River, NW of Parrott Landing, ca 1 mile SE of Ord Ferry, ca 2 miles SE of Ordbend, ca 12 miles (air) SW of Chico. 32 Comment
  CHSC107596  Heuchera micrantha var. erubescens Lowell Ahart 2011-7-9 17578 Butte Northwest part of a large open bare granite area, about 3/8 mile northeast of Little Bald Rock, about 2 miles (air) southeast of Brush Creek, about 15 miles (air) northeast of Oroville. 967 Comment
  UC114811  Heuchera micrantha var. erubescens Mrs. R. M. Austin Mar 1896 673 Butte Little Chico Canyon Comment
  CHSC20529  Hibiscus syriacus Pamela Caldwell 1971-10-30 Butte NE corner of Art Bldg. CSUC campus. Comment
  JEPS94304  Hieracium albiflorum Lowell Ahart 1997-8-1 7779 Butte Near some small streamlets of Little Kimshew Creek, in snow Meadow, about 1/4 mile east of Table Mountain, about 8 air miles northeast of Stirling City. 1524 Comment
  SEINET10475294  Hieracium argutum Lowell Ahart, Peter Ahart 1983-7-24 Ahart 4210 Butte T20N R7E ne sec 32. At the Forbestown Reservoir, ca. 5 mi ne of Forbestown. Yellow Pine Forest; 450 m. 450 Comment
  CAS-BOT-BC55327  Hirschfeldia incana John Thomas Howell 1961-9-22 36712 Butte Sierra Nevada. Bank of Feather River, Oroville. 53 Comment
  CHSC102729  Hirschfeldia incana Lowell Ahart 2009-7-9 16020 Butte On the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 203 Comment
  CHSC38413  Hirschfeldia incana Vernon Oswald 1983-5-2 413 Butte Upper Bidwell Park, Chico, in a field on the s side of Lindo Channel just upstream from the flood-control gates. 79 Comment
  OBI69218  Hirschfeldia incana Kari Fisher 2000-10-7 5 Butte Lindo Channel, 100 ft from E First Street 82 Comment
  CHSC39560  Hoita macrostachya Lowell Ahart 1983-7-24 4201 Butte About 1/2 mile south-west of the intersection of the Oroville Forbestown Road and Black Bart Road, about 6 miles south-west of Forbestown. 750 Comment
  CHSC26788  Hordeum marinum subsp. gussoneanum M. S. Taylor; M. Hayes 1978-5-7 1598 Butte Richvale vernal pools, on w side of Hwy 99, ca. 20 mi s of Chico. 30 Comment
  CHSC42373  Hordeum marinum subsp. gussoneanum Lowell Ahart 1987-5-6 5563 Butte On a gravel bar along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  UCD80562  Hordeum marinum subsp. gussoneanum CNPS SN Foothill Team 2005-5-3 SNFN 0198 c Butte City of Chico, Doe Mill Meadowfoam Preserve, ~200 m at 240 degrees from the preserve gate, and ~75 m from the east fence. 85 Comment
  CHSC6745  Hordeum murinum subsp. leporinum Marilyn Lee 1968-4-15 178 Butte 1076 E. First Ave., Chico. Almond orchard. Comment
  CHSC8218  Hordeum murinum subsp. leporinum Dave Isle 1969-3-21 260 Butte Just off the S. side of the road through Upper Bidwell Park about 50 yards W. of the entrance to the golf course (E. of Chico). 59 Comment
  CHSC86111  Horkelia californica subsp. dissita L. P. Janeway; John Hunt 2003-4-22 7761 Butte Northern Sierra Nevada Foothills. Just below high water line of Lake Oroville on south side of Bloomer Point Campground (west side of the lake); 4.7 km southwest of Bloomer Hill. Large meadow that extends above and below high water line. 271 Comment
  CAS-BOT-BC536584  Horkelia californica var. elata Lowell Ahart 1980-7-29 2505 Butte Sierra Nevada, near Forbestown Road 750 Comment
  SEINET10483365  Horkelia fusca subsp. parviflora Mary Susan Taylor, Lowell Ahart 1981-8-16 Taylor 4201 Butte T25 N R5E SW 1/4 sec 29. Pulga NW quad. Jones Meadow, ca. 3 mi S of Philbrook Reservoir, ca. 6 mi NE of Stirling City. Montane Meadow. 6000 ft. 1829 Comment
  SEINET10970307  Horkelia fusca subsp. parviflora Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4753 Butte Along the road, about 1 1/2 mile south-east of Bald Mountain, 1/4 mile east of Oak Point, about 5 miles north-east of Stirling City. Comment
  POM220122  Horkelia fusca subsp. tenella H. F. Copeland 1928-8-20 458 Butte Jonesville. 1524 Comment
  UC398921  Horkelia fusca subsp. tenella E. B. Copeland 1929-7-25 371 Butte Jonesville 1550 Comment
  RSA4664  Horkelia tridentata E. B. Copeland 1929-7-23 370 Butte Jonesville. 1550 Comment
  CHSC1557  Horkelia tridentata subsp. flavescens M. Davidson 1929-5-2 Butte Paradise. 609 Comment
  SBBG128726  Hypericum anagalloides L. Ahart 2011-7-9 17575 Butte seeps, SE edge of large open bare granite area, ca. 3.8 mi NE of Little Bald Rock, ca. 2 mi (air) SE of Brush Crk, ca. 15 mi (air) NE of Oroville 974 Comment
  SJSU768  Hypericum concinnum A. W. Jacobs 1942-6-26 Butte c. 22 mi NE of Oroville on Hwy 24 Comment
  RSA25678  Hypericum concinnum C. B. Wolf 1941-7-23 4315 Butte Northern Sierra Nevada. 6 6/10 mi. W. of De Sabla on road to Forest Ranch. 762 Comment
  CHSC94999  Hypericum formosum var. scouleri Lowell Ahart 2006-10-26 13510 Butte West side of a large meadow with bogs, about 75 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1560 Comment
  UC600533  Hypericum formosum var. scouleri H. F. Copeland 1930-7-24 1316 Butte Jonesville Comment
  UC871991  Hypericum formosum var. scouleri A. A. Heller 1914-7-23 11599 Butte Chico meadows 1219 Comment
  CHSC116020  Hypericum mutilum subsp. mutilum Lowell Ahart 2015-10-20 20573 Butte On the west side of the Feather River, about half way of and east of One Mile Pond, about 6 miles (air) east of Biggs. 26 Comment
  RSA150570  Iris hartwegii Lee W. Lenz 1961-6-20 24350 Butte Feather River Canyon, between first and second power dams-- near Cresta power station Comment
  CHSC50118  Iris hartwegii subsp. pinetorum Vernon Oswald 1990-4-30 4176 Butte Feather Falls Trail near the 2-mile marker, between Fray Creek and Wagners Valley. 445 Comment
  UC143451  Iris macrosiphon Mrs. R. M. Austin Mar 1896 13 Butte Little Chico Creek Comment
  RSA135853  Iris macrosiphon Lee W. Lenz, E. K. Balls 1955-5-13 20694 Butte Ca. 1 mile from Pentz (west) on road to Highway 40 alt. 305 Comment
  SEINET3876030  Iris macrosiphon D. W. McNeal, Todd McIntyre 1989-4-18 3369 Butte Shady oak woodland on the margin of a barren serpentine outcrop above Lunt Rd., 0.4 mi. North of Highway #70.; 0 Comment
  SEINET3863772  Isoetes howellii Alv Dan Youngberg 1968-4-13 901 Butte On Table Mountain above Oroville.; 0 Comment
  CHSC113230  Isoetes nuttallii Lowell Ahart 2014-5-2 19426 A Butte On the north side of a small drainage, about one mile (air) northwest of the Improved Parking Area and Cherokee Road, North Table Mountain, about 8 miles (air) north of Oroville. 391 Comment
  CHSC86594  Isoetes nuttallii L. P. Janeway 2003-5-7 7774 Butte Northern Sierra Nevada Foothills. Kelly Ridge between Lake Oroville Visitors Center and south end of Oroville Dam. 329 Comment
  JEPS98371  Isoetes nuttallii Lowell Ahart 2000-6-29 8545 Butte 5 air miles E of Magalia (SW part of Flea Meadow, about 1/2 mi W of Flea Mountain, 3 1/2 air miles N of Concow Reservoir) 1036 Comment
  CHSC51025  Isolepis setacea Lowell Ahart 1990-7-15 6564 Butte Along a small stream, below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/4 mile north-west of the Enterprise Bridge across Lake Oroville. 243 Comment
  CHSC78323  Isolepis setacea Lowell Ahart 2000-7-11 8563 Butte Seep on basalt, about 100 yards south of the dirt road, about 200 yards southeast of Lumpkin Ridge Road, about 1 1/2 miles east of Camp 18, about 6 1/2 miles (air) northeast of Feather Falls. 1280 Comment
  CHSC109653  Jasminum mesnyi Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-19 18021 Butte On the north side of Big Chico Creek, on the north side of the paved park raod, southeast part of the old walnut orchard, south of Vallombrosa Avenue, about 1/8 mile west of Peterson Drive, Lower Bidwell Park, Chico. 76 Comment
  SEINET4691794  Juncaceae Peter F. Zika 2011-1 25543 Butte near parking for Big Bald Rocks Trailhead, 0.2 air miles E of Big Bald Rocks 1050 Comment
  CHSC31841  Juncus acuminatus L. Ahart 1975-6-19 797 Butte Along edge of North Honcut Creek. Peter Ahart Ranch,Honcut. 50 Comment
  JEPS94727  Juncus acuminatus Lowell Ahart 1998-6-30 8007 Butte about 7 air mi n of Oroville (w of the ione oak tree, w of the cow chute on the w side of Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 403 Comment
  CHSC78326  Juncus articulatus Lowell Ahart 2000-7-11 8567 Butte On the sides of a dirt road, about100 yards north of Lumpkin Ridge Road, upper west branch of Know-nothing Creek, about 1 mile southwest of the intersection of Lumpkin Ridge Road, road to Fall River, and the County Road, about 4 miles (air) mortheast of Feather Falls. 1219 Comment
  CHSC42079  Juncus balticus L. A. Hinman 1986-4-3 7 Butte Ca. 6.5 mi ne of Chico. NW side of Mud Creek, ca. 20 yd w of creek. 195 Comment
  JEPS113867  Juncus brachyphyllus Lowell Ahart 2007-6-12 14077 Butte Along a small dry wash, about 70 yards south of Bean Creek Road, about 1/4 mile (air) southeast of Little Bald Rock, about 15 miles (air) northeast of Oroville 974 Comment
  SEINET10872268  Juncus brachyphyllus Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4135 Butte T20N R5E sw sec 10. Near edges of Ponderosa Way (Big Ridge Rd), near East Fork of Canyon Creek, ca. 14 mi ne of Oroville. Foothill Woodland; 500 m. 500 Comment
  UC600806  Juncus bufonius H. F. Copeland 1930-7-28 Butte Jonesville, bu Humbug Road Jonesville 1828 Comment
  CHSC113522  Juncus bufonius var. bufonius Lowell Ahart 2014-7-7 19593 Butte On the south side of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1664 Comment
  CHSC26800  Juncus bufonius var. bufonius M. S. Taylor; M. Hayes 1978-4-14 1559 Butte Vernal pools, on e side of Williams Rd, ca. 1/4 mi n of Pentz Rd, on Butte College campus, ca. 15 mi s of Chico. 30 Comment
  CHSC6131  Juncus bufonius var. bufonius E. Parreno 1968-5-13 110 Butte E Boundary of Upper Bidwell Park at the left of the road's end. Chico. Comment
  CHSC61346  Juncus bufonius var. bufonius Lowell Ahart 1993-7-29 7118 Butte Near a seep, about 2 1/2 miles north-east of Bald Mountain, about 6 1/2 miles north-east of Stirling City. 1584 Comment
  JEPS94875  Juncus bufonius var. congestus Lowell Ahart 1998-5-2 7957 Butte about 5 air mi sw of Gridley (n side of Evans Reimer Road, about 1/4 mi e of Pennington Road); Evans Reimer Road 21 Comment
Read comments
1
  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
  JEPS118087  Juncus covillei Lowell Ahart 2011-8-19 17640 Butte On the north side ofa good forest road and in the west gutter of a secondary road, about 1/2 mile north of the Lost Creek Reservoir Dam, about 4-1/2 miles (air) north of Clipper Mills 1266 Comment
  JEPS120918  Juncus cyperoides Lowell Ahart 2013-5-27 18711 Butte On the E side of Black Bart Road, about 3/4 road miles SW of the intersection of Forbestown Road and Black Bart Road, about 3.5 air miles SW of Forbestown. Comment
  UC1562378  Juncus dubius Vernon Oswald and Lowell Ahart 1990-7-31 4419 Butte ca 4 mi n Concow (meadow at the headwaters of Concow Creek); Concow Creek 1097 Comment
  SEINET10472478  Juncus effusus var. pacificus Mary Susan Taylor 1978-7-18 Taylor 1721 Butte On N side of Butte Creek, ca. 1/8 mi W of Road Island Junction, at junction of Butte Creek and Old Humboldt Road, ca. 1 mi W of Cherry Hill Campground; Yellow Pine Forest. 1524 Comment
  SEINET10472479  Juncus effusus var. pacificus Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4099 Butte T21N R5E sec 30. Along Bloomer Hill Rd, ca. 3 mi nw of Oroville-Quincy Hwy, ca. 16 mi ne of Oroville. Yellow Pine Forest; 700 m. 700 Comment
  SEINET10872269  Juncus effusus var. pacificus Lowell Ahart, Peter Ahart 1983-7-24 Ahart 4202 Butte T19N R7E sec 6. Ca. 2 mi sw of the Forbestown Reservoir, ca. 3 mi ne of Forbestown. Yellow Pine Forest; 550 m. 550 Comment
  CHSC38921  Juncus ensifolius Vernon Oswald 1983-6-24 765 Butte Upper Bidwell Park, Chico, near the retaining wall at the e end of Centennial Ave. 85 Comment
  SEINET11787692  Juncus ensifolius J. D. Jokerst, Schlising, R. A. 1982-1 1650 Butte W edge of Skyway 1.1 mi S of Innskip 1433 Comment
  CHSC113432  Juncus hemiendytus var. hemiendytus Lowell Ahart 2014-7-7 19581 Butte West of the bog, Coon Hollow, about 2 miles (air) north of Philbrook Reservoir. 1690 Comment
  JEPS45835  Juncus howellii Duncan Dunning 1921-7-29 Butte Butte Meadows Comment
  RSA795245  Juncus laccatus L. Ahart 2011-8-23 17647 Butte In the large meadow, Pinkard Creek flows through the meadow, east of the corral, about 1 mile north of Lost Creek Reservoir Dam, about 4 air miles northeast of Clipper Mills. 1134 Comment
  UCD169927  Juncus laccatus Lowell Ahart 2011-8-19 17641 Butte About 1/2 mile north of the Lost Creek Reservoir Dam, about 4 1/2 miles (air) north of Clipper Mills. Along the wet road gutter, on the south side of a good forest road. 1266 Comment
  SEINET11783989  Juncus leiospermus var. ahartii Unknown 1973-1 192 Butte Peter Ahart Ranch, Honcut 46 Comment
  CHSC29733  Juncus leiospermus var. leiospermus J. D. Jokerst 1980-4-17 594 Butte In the bottoms of vernal pools below the high water mark. Top of North Table Mt. 441 Comment
  CHSC93494  Juncus leiospermus var. leiospermus Lowell Ahart 2006-5-8 12603 Butte Margins of a vernal pool where there is basalt shelfing, about 1 1/2 miles west of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 327 Comment
  JEPS110148  Juncus leiospermus var. leiospermus Lowell Ahart 2006-5-8 12602 Butte Center of a small swale, about 100 yards southwest of the reservoir dam, about 2 3/4 miles west of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 280 Comment
  RSA712857  Juncus leiospermus var. leiospermus L. Ahart 2006-5-8 12584 Butte About 3/4 mile northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 397 Comment
  CHSC113462  Juncus occidentalis Lowell Ahart 2014-7-7 19594 Butte Depression in a large disturbed area on the south side of Philbook Road, about 1 mile (air) west of Philbrook Reservoir. 1664 Comment
  CHSC82471  Juncus occidentalis Lowell Ahart; John Dittes, Josephine Guardino 2002-6-21 9740 Butte On the sides of a poor dirt road, Watson Ridge, about 2 miles (air) northeast of Bald Rock Dome, about 5 miles (air) north of Feather Falls (the town). Comment
  CHSC31907  Juncus oxymeris L. Ahart 1977-7-19 1482 Butte Along the edges of North Honcut Creek, Peter Ahart Ranch, Honcut. 50 Comment
  CHSC61352  Juncus oxymeris Lowell Ahart 1993-7-29 7133 Butte In a large bog, on the north side of the dirt road to Big Kimshew Creek, about 1 1/2 miles southeast of Bald Mountain, northeast of Stirling City. 1493 Comment
  CHSC99486  Juncus oxymeris Lowell Ahart 2008-6-13 14817 Butte East side of a small meadow, bottom of an old gold mined area, about 150 yards west of the cemetery, about 150 yards north of Oregon Gulch, about 10 miles (air) northeast of Oroville. 311 Comment
  POM197255  Juncus oxymeris H. F. Copeland 1923-8-13 1099 Butte Nelson. Comment
  JEPS115909  Juncus patens Lowell Ahart 2009-7-9 16004 Butte On the east side of Ten Mile House Road, Upper Bidwell Park about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 209 Comment
  CHSC32375  Juncus tenuis J. D. Jokerst 1980-6-14 837 Butte Bald Rock, on its N slopes. 914 Comment
  CHSC42386  Juncus tenuis Lowell Ahart 1987-5-27 5695 Butte On a sand bar along the North Fork of the Feather River, near the Poe Power House, about 2 miles southeast of Jarbo Gap. 271 Comment
  JEPS113842  Juncus tenuis Lowell Ahart 2007-7-2 14244 Butte On the east side of the restroom, at the parking area at Big Bald Rock, about 14 miles (air) northeast of Oroville 1001 Comment
  JEPS117673  Juncus tenuis Lowell Ahart 2010-9-21 17225 Butte On damp bare disturbed soil, bottom and sides of a small wash, on the south side of a poor dirt road, about 1 mile (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir 1899 Comment
  JEPS113273  Juncus triformis Lowell Ahart 2007-5-22 13902 Butte Northeast of Little Bald Rock, about 300 yards east of Bean Creek road, about 16 miles (air) northeast of Oroville 1009 Comment
  CAS-BOT-BC279912  Juncus trilocularis Peter F. Zika 2011-7-6 25540 Butte Above Oroville-Quincy Highway, 0.8 road miles S of Stevens Ridge Road, 2.5 air miles NE of Wild Yankee Hill, northern Sierra Nevada Highlands (n SNH) 830 Comment
  CHSC109614  Juncus usitatus Lowell Ahart; Linnea Hanson, Josephine Guardino 2012-5-23 18105 Butte Along the horse trail, north of Table 25, about 20 yards south of Vallombrosa aveune, southwest of Madrone, Lower Bidwell Park, Chico. 70 Comment
  CHSC111175  Juncus usitatus Lowell Ahart 2013-6-18 18808 Butte About 60 yards west of Parking Lot 14, Gray Lodge Wildlife Management Area, about 7 miles (air) southest of Gridley. 19 Comment
  CHSC59019  Juncus usitatus Lowell Ahart 1992-7-23 6828 Butte On the north side of the Thermalito Diversion Pool, near Longs Bar Monument, Lake Oroville Recreation Area, about 2 miles west of Oroville Dam. 76 Comment
  CHSC45224  Juniperus californica Lowell Ahart 1983-4-10 3922 Butte About 1 1/2 miles north-east of Highway 99 and Pentz Road. 91 Comment
  UC2026866  Juniperus lusitanica Lowell Ahart, Susan Bazell, Josephine Guardino, Wes Dempsey 2012-7-5 18265 Butte Cedar Grove, parking area, Lower Bidwell Park, Chico. Comment
  RSA34926  Keckiella breviflora subsp. glabrisepala A. A. Heller, H. E. Brown 1902-5-6 5471 Butte Berry Canyon (near Clear Creek). Comment
  UCR47786  Keckiella lemmonii D. C. Michener 1980-8-4 3778 Butte Northern Sierra Nevada Mtns, Rocky slopes and fill along the Feather River about 2.9 mi south of the Plumas County line 549 Comment
  CHSC43739  Kelloggia galioides Vernon Oswald 1983-7-6 815 Butte Near Humboldt Rd. (to Butte Meadows) 2.0 m NE of its jct. with Calif. Hwy. 32. 1386 Comment
  CHSC66678  Kickxia elatine Vernon H. Oswald 1996-7-17 8063 Butte Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Sacramento River National Wildlife Refuge, Llano Seco Unit. 30 Comment
  UCR219110  Kickxia elatine George K. Helmkamp, E. A. Helmkamp 2009-9-5 15596 Butte Sacramento Valley, Palermo Road 0.3 mi. east of its junction with CA-70, 6.1 mi. ENE (76 deg. ) of Biggs 58 Comment
  CDA35627  Kickxia elatine J. R. Keck Jr., L. Adams 1978-10-26 PDR# 330073 Butte Chico; Rancho Llano Seco. 0 Comment
  HSC102772  Koeleria gerardi J. P. Smith 2014-4-30 13838 Butte Along State Route 32. 389 Comment
  CHSC43728  Kumlienia hystricula Vernon Oswald 1984-5-23 1201 Butte Near the falls on Bear Ranch Creek s-e of Calif. Hwy 70 at the Cresta Rest Area. 512 Comment
  CAS-BOT-BC340328  Kyhosia bolanderi A. A. Heller 1914-8-7 11653 Butte Butte Meadows 1219 Comment
  CAS-BOT-BC111944  Kyllinga brevifolia John Thomas Howell 1959-9-20 34641 Butte Lower foothills, eastern outskirts of Oroville. 60 Comment
  JEPS95527  Lactuca canadensis Lowell Ahart 1994-10-23 7568 Butte 4 mi W and 0.5 mi N of Stirling City (3 mi N of De Sabla reservoir) 853 Comment
  CHSC113600  Lactuca saligna Lowell Ahart 2014-8-24 19731 Butte On the south side of the road, about 50 yards west of Woodleaf Creek, about 1/2 mile southwest of the Forbestown Reservoir Dam, about 4 miles (air) northeast of Forbestown. 611 Comment
  CHSC38365  Lactuca saligna Vernon Oswald 1983-6-29 798 Butte Upper Bidwell Park, Chico, at the edge of Parking Area L at Diversion Dam. 121 Comment
  CHSC111604  Lactuca serriola Lowell Ahart 2012-8-10 18417 Butte The north side of the parking area, Bidwell Mansion, Chico. Uncommon. Urban. 60 Comment
  CHSC37372  Lactuca serriola R. A. Schlising 1981-9-20 4200 Butte Richvale Vernal Pools, 1/4 mi s of jct Hwy 162 to Oroville and Hwy 99, along latter and across from Thermalito Afterbay. Comment
  CAS-BOT-BC271247  Lamarckia aurea Lowell Ahart 1980-3-23 2050 Butte West Branch Bridge, Highway 70 Comment
  JEPS119503  Lamium purpureum Lowell Ahart, John Dittes, Josephine Guardino 2012-4-6 17814 Butte On the north side of Big Chico Creek, Lost Park in Bidwell Park, City of Chico. Comment
  CHSC113441  Lapsana communis Lowell Ahart 2014-7-7 19564 Butte About 5 yards east of the Skyway, about one-mile north of Stirling City. 1142 Comment
  CAS-BOT-BC337912  Lasthenia californica Lowell Ahart 1970-4-20 s.n. Butte Peter Ahart Ranch, Honcut 150 Comment
  CHSC8158  Lasthenia californica D. McClain 1969-3-20 82 Butte 20 yds. from Upper Bidwell Park Rd., 1/2 mi. from entrance of Upper Bidwell Park, Chico. 60 Comment
  CDA42855  Lasthenia fremontii L. Ahart 2012-5-2 17963 Butte In a small vernal pool, about 30 yards west of the Easter Cross Parking Lot, Upper Bidwell Park, about 1 mile east of Chico. Comment
  CAS-BOT-BC354119  Lasthenia fremontii A. A. Heller; H. E. Brown 1902-5-2 5441 Butte Near Butte City. Comment
  CHSC66159  Lathyrus angulatus Vernon H. Oswald; Lowell Ahart 1996-5-27 7652 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. In weeds between the hiking trail and the S end of Tract 2, Sanctuary II. 33 Comment
  CAS-BOT-BC213337  Lathyrus jepsonii subsp. californicus Peter H. Raven 1953-5-9 5426 Butte 8 miles from Bangor on Oroville Road Comment
  UC204733  Lathyrus jepsonii var. californicus A. A. Heller 1914-5-1 11345 Butte w of Chico (bank of Sacramento River); Sacramento River Comment
  CHSC36963  Lathyrus latifolius M. S. Taylor 1982-8-16 4985 Butte Just S of old RR crossing over Coutelenc Rd, at its jct with the Skyway, Magalia. 731 Comment
  RSA424763  Lathyrus latifolius Aaron Liston, M. Blumler 1987-4-24 659 -2 Butte Table Mountain, N of Oroville on Cherokee Road. Comment
  CHSC115496  Lathyrus nevadensis var. nevadensis L. P. Janeway 2015-3-16 11639 Butte Northern High Sierra Nevada. Plumas National Forest; along Ponderosa Way at Road 19N19, 1.0 road-km northwest of Lower Forbestown Road, just before the canyon becomes steep into South Fork Feather River arm of Lake Oroville. 747 Comment
  CAS-BOT-BC213291  Lathyrus sulphureus A. A. Heller 1915-4-20 11846 Butte 3 miles above Centerville in the Sierra foothills. Comment
  CHSC861  Lathyrus tingitanus V. Holt 1947-5-1 Butte Nimshew grade. 609 Comment
  CHSC114985  Lavandula Lowell Ahart 2015-4-11 20027 Butte On the north side of Lower Honcut Road, about 1/4 mile west of the intersection of Palermo Honcut Highway and Lower Honcut Road, west of Honcut, about 13 miles (air) south of Oroville. 23 Comment
  UC89144  Layia fremontii E. B. Copeland 1903-4-11 3039 Butte Chico Comment
  POM53359  Layia fremontii E. B. Copeland 1903-4-11 3039 Butte Chico Comment
  SBBG17071  Layia fremontii M. Vincent 1961-3-29 Butte Chico Rd, ca. 1 mi E of Chico Comment
  CHSC48320  Lepidium appelianum Vernon Oswald 1987-5-3 2365 Butte Rancho Bosquejo. East side of the Sacramento River at the w end of Cana Hwy (Feenstra's Riverview Orchard). 48 Comment
  CHSC35633  Lepidium dictyotum R. E. Preston 1982-4-4 216 Butte Dirt road on dike, Gray Lodge State Wildlife Area, ca. 0.3 mi w of Headquarters. 20 Comment
  JEPS87616  Lepidium latifolium Lowell Ahart 1994-9-26 7548 Butte about 1.5 mi n and 1 mi e Honcut (about 12 mi s of Oroville, Peter Ahart Ranch); Peter Ahart Ranch 36 Comment
  CAS-BOT-BC89879  Lepidium nitidum A. A. Heller 1919-3-29 13096 Butte Cherokee mine. Comment
  RSA767799  Lepidium nitidum var. nitidum L. Ahart 2010-3-14 16571 Butte About 50 yards north of the wash, Peter Ahart Ranch, about 1.5 miles north and 1.25 miles east of Honcut, about 12 miles south of Oroville. 36 Comment
  CAS-BOT-BC12800  Lepidium perfoliatum Lowell Ahart 1981-4-6 2742 Butte A little west of the Gray Lodge Headuarters, ca. 8 miles southwest of Gridley. 35 Comment
  CHSC35012  Lepidium strictum R. E. Preston 1982-3-6 185 Butte Ca. 100 yds n of Horseshoe Lake, Upper Bidwell Park, Chico. 106 Comment
  CHSC42700  Lepidium virginicum var. pubescens Lowell Ahart 1987-5-6 5511 Butte On a gravel bar along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  UCR148775  Leptochloa dubia Lowell Ahart 2000-11-4 8714 Butte W side of Hwy 70, about 100 yd N of Rich Gulch Road, 1 mi N of the West Branch Bridge across Lake Oroville, and 5 air mi SE of Paradise 335 Comment
  JEPS119961  Leptochloa fascicularis Lowell Ahart 2011-10-29 17731 Butte On the south side of Biggs Princeton Road, about 500 yards west of Riceton Highway, about 1 miles northwest of Biggs. Comment
  CHSC66175  Leptochloa fusca subsp. fascicularis Vernon H. Oswald; Lowell Ahart 1996-5-27 7664 .1 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. On the S side of Tract 1.1, Sanctuary II. 33 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
  CHSC36716  Leptosiphon bolanderi R. Schlising; R. Banchero 1980-5-13 3587 Butte Serpentine outcrop above Hwy 70 and above Bardees Bar on N Fork of Feather River, ca 2 mi S of Pulga. 441 Comment
  CHSC2429  Leptosiphon ciliatus R. Carter 1965-6-21 251 Butte Found on Oroville-Quincy Rd. at Merrimac, 5.5 mi. N of Mountain House, E 10' from road and S 15' from creek. 1176 Comment
  CHSC59955  Lesquerella occidentalis subsp. occidentalis S. M. Fleshman 1989-5-1 5 Butte Ca. 1 mi se of junction of Cohasset and Vilas roads. Ca. 12 mi e of Chico. 579 Comment
  CHSC31181  Lessingia nana M. S. Taylor; R. Schlising 1980-7-5 3059 Butte On w side of Hwy 32, ca. 0.1 mi s of Loma, up on edge of forest. 1127 Comment
  CAS-BOT-BC341783  Lessingia nemaclada Lowell Ahart 1983-6-30 4179 Butte About 1 1/2 miles north-east of Concow Res. 550 Comment
  CAS-BOT-BC341784  Lessingia nemaclada John Thomas Howell 1959-9-26 35084 Butte Arch Rock, North Fork Feather River 457 Comment
  CHSC113164  Lessingia nemaclada Lowell Ahart 2013-11-13 19253 Butte Between the road and the large cutbank, about 50 yards southeast of the Ponderosa Dam spillway. 299 Comment
  CHSC23377  Lessingia nemaclada Lowell Ahart 1975-9-4 977 Butte Along edge of Ponderosa Way two miles south-west of Feather Falls. 396 Comment
  CHSC38121  Lessingia nemaclada R. L. Ondricek-Fallscheer 1982-10-30 160 Butte At edge of road, sw tip of Flatiron Ridge, ca. 3 1/2 mi wsw of Paradise. 134 Comment
  SD8923  Lessingia nemaclada Mrs. R. M. Austin 1883-1 Butte Butte Co. Comment
  CAS-BOT-BC341782  Lessingia nemaclada Lowell Ahart 1986-11-8 5432 Butte About 1 1/2 miles north of French Creek, along Swayne Hill, about 3 air miles north-west of the Brush Creek Work Center, about 25 miles north-east of Oroville 640 Comment
  SEINET10904896  Lessingia nemaclada Mary Susan Taylor 1979-10-13 Taylor 2274 Butte T23N R4E e center sec 29. Serpentine outcrop on Jordan Hill Road (Ponderosa Way on some maps), ca. 11.1 mi N of its jct with Concow Road, 1.9 mi N of Sawmill Peak, ca. 2 mi NE of Magalia. With Jim Jokerst. 853 Comment
  CHSC23865  Lessingia virgata Lowell Ahart 1976-9-4 1193 Butte Peter Ahart Ranch, Honcut. 45 Comment
  RSA126788  Lessingia virgata J. E. Sowder 1933-6-15 85 Butte 1 mile west of Tres Vias 46 Comment
  CAS-BOT-BC56388  Leucothoe davisiae Lowell Ahart 1986-8-15 5388 Butte about 1 mile south-west of Bald Mountain, about 4 miles north-east of Stirling City 1493 Comment
  CHSC97256  Lewisia cantelovii Lowell Ahart 2007-5-16 13894 Butte On the east side of Highway 70, about 150 yards no ... Field redacted by CHSC, contact the data manager for more information 463 Comment
  CHSC100828  Lewisia nevadensis Susan Bazell; Robert Schlising 2006-7-6 63 Butte Scotts John Meadow. E of Jonesville on road 26N27 towards Humbug Road, about 0.2 mi S of dirt road following Scotts John Creek. In upper wet part of meadow. 1767 Comment
  CHSC27995  Ligusticum californicum M. S. Taylor 1978-7-18 1679 Butte On w side of Hwy. 32 on edge of Yellow Pine Forest, ca. 1/4 mi n of Forest Ranch. 718 Comment
  CHSC42590  Ligusticum grayi Vernon Oswald 1985-7-2 1879 Butte Scotts John Rd. 0.6 mi n of the road connecting Humboldt and Humbug Rds. 1780 Comment
  JEPS120070  Ligustrum sinense Lowell Ahart 2012-6-21 18208 Butte On the south bank of Big Chico Creek, about 200 yards east of the dam at Sycamore Pool, Lower Bidwell Park, Chico. Comment
  CHSC38881  Lilium humboldtii subsp. humboldtii Vernon Oswald 1983-6-9 659 Butte Upper Bidwell Park, Chico, near Brown's Hole. ... Field redacted by CHSC, contact the data manager for more information 195 Comment
  CHSC30287  Lilium pardalinum subsp. shastense M. S. Taylor; R. A. Schlising 1980-7-6 3069 Butte On side of Old Humboldt Rd, ca. 0.8 mi ne of Cherry Hill Campground. 1463 Comment
  LA22091  Lilium washingtonianum E. B. Copeland; 1931-7-12 615 Butte Jonesville 1600.0 Comment
  UC436287  Lilium washingtonianum subsp. washingtonianum E. B. Copeland Jul 1930 Butte Jonesville 1600 Comment
  CHSC42196  Limnanthes alba John E. Hunter 1986-4-12 46 Butte Vacant lot within City of Chico, ca 75 m nw of the intersection of East Ave. and Ceanothus Ave. Vernal pool margin. 62 Comment
  UC869472  Limnanthes alba A. A. Heller 1917-4-15 12674 Butte ten mi n Chico 64 Comment
  CHSC111315  Limnanthes alba Julie Kierstead Nelson 2013-4-16 2013 -005 Butte 5 mi. N of Shasta College, NE of Redding, in rural residential area, intersection of Portero and Paso Robles; UTM Zone 10N, 557750E 4500503N. 199 Comment
Read comments
Mar 14 2021
  POM86187  Limnanthes alba R. M. Austin 1883-05 s.n. Butte No locality information provided. Comment
  UCD22645  Limnanthes douglasii Joseph Laferriere 1982-4-18 2 Butte Table Mountain, 5 miles north of Oroville on Cherokee Road, near creek. 396 Comment
  RSA262376  Limnanthes douglasii subsp. douglasii Gary L. Carlin 1971-4-10 4 Butte Cherokee Road, north rim of Table Mountain, 6.5 miles north of Oroville. Comment
  CHSC10643  Limnanthes douglasii subsp. nivea Lowell Ahart 1969-4-8 Butte Table Mountain, Oroville. 396 Comment
  CHSC33850  Limnanthes douglasii subsp. rosea R. E. Preston 1979-4-19 14 Butte Northernmost Butte County. Ditches along Cana-Pine Creek Road nw of Singer Creek. 56 Comment
  RSA33078  Limnanthes douglasii subsp. rosea A. A. Heller 1938-4-14 s.n. Butte Flat, treeless summit of Table Mountain north of Oroville. Upper Sonoran Life Zone. 305 Comment
  UCD116438  Limnanthes floccosa Jeff Dole 1988-3-28 s.n. Butte east of Chico airport. 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
  UC1586606  Linanthus bicolor Vernon H. Oswald and Lowell Ahart 1991-5-31 4634 Butte s side Thermalito Diversion Pool (Dan Beebe Trail, between Oroville Dam Blvd East and Glen Pond, in the Lake Oroville State Recreation Area); Lake Oroville State Recreation Area 91 Comment
  UC880314  Linanthus bicolor A. A. Heller 1938-4-11 15022 a Butte e of Chico (on hills back of the rifle range) Comment
  SEINET12329568  Linanthus ciliatus L. Ahart, Ahart, P. 1984-1 4645 Butte about 1 mi NE of the West Branch Bridge, ca 2 mi S of Old Yankee Hill, ca 16 mi NE of Oroville 450 Comment
  SEINET10837197  Linanthus filipes Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4257 Butte T22N R7E sw sec 31. Ca. 3 mi e of Milsap Bar, ca. 25 mi ne of Oroville. Yellow Pine Forest; 1100 m. 1100 Comment
  CHSC42119  Lindernia dubia Lowell Ahart 1986-11-9 5443 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
  CHSC37385  Lindernia dubia var. anagallidea R. A. Schlising 1980-9-2 3989 Butte Bidwell R. State Park west of Chico. Comment
  CHSC117308  Linnaea borealis var. longiflora L. P. Janeway 2016-7-28 12122 Butte Northern High Sierra Nevada. Plumas National Forest; along Road 21N70 0.9 road-km north of Road 21N20; above the west side of Sly Creek 1.4 air-km northeast of the upper end of Sly Creek Reservoir. 1125 Comment
  JEPS127061  Linum bienne Lowell Ahart 2016-5-14 20825 Butte On the east side of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 2 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. Comment
  RSA0080120  Linum bienne Lowell Ahart 2011-6-5 17365 Butte On the west edge of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 42 Comment
  CHSC75980  Lipocarpha micrantha Lowell Ahart 1999-8-13 8180 Butte Large disturbed area along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CHSC39966  Lithocarpus densiflorus L. Ahart; P. Ahart 1983-7-24 4203 Butte Ca. 2 mi sw of the Forbestown Reservoir, ca. 3 mi ne of Forbestown. 550 Comment
  CAS-BOT-BC36175  Lithocarpus densiflorus var. densiflorus Lowell Ahart 1987-9-18 5885 Butte along the dirt road, about 1/2 mile west of Pinkard Creek, 1.5 miles west of the Sly Creek Reservoir 1097 Comment
  RSA157759  Lithophragma heterophyllum I. L. Wiggins 1925-3-22 1474 Butte Chico Creek Canyon about 5 miles above Chico. Comment
  CHSC36357  Lithophragma parviflorum J. D. Jokerst; R. A. Schlising 1982-6-4 1588 Butte At the headwaters of Concow Creek. South of and adjacent to Flea Valley. 1097 Comment
  CHSC12180  Lithophragma parviflorum var. parviflorum Lowell Ahart 1969-4-8 Butte Table Mountain, Oroville. 396 Comment
  UC589702  Lithophragma parviflorum var. trifoliatum R. Holdenried 1938-4-2 59 Butte Paradise Comment
  CAS-BOT-BC428448  Lithophragma trifoliatum A. A. Heller 1921-3-27 13531 Butte Along Butte Creek east of Chico near the Honey Run grade bridge. Comment
  CHSC33582  Lithospermum californicum M. S. Taylor 1981-4-27 3556 Butte Ridge between 21N33 and 21N80, ca. 1 mi sw of Bald Rock Rd, ca. 0.5 mi n of Zink Rd, ca. 2 mi sw of Brush Creek. 1005 Comment
  CAS-BOT-BC342217  Logfia filaginoides E. K. Balls; L. W. Lenz 1955-5-13 20693 Butte 0.5 mi. s. of Paradise on road from Oroville to Magalia 426 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
  CHSC26713  Logfia gallica M. P. Hayes 1978-4-7 152 Butte On top of ne butte on Butte College campus at the corner of Pentz and Clark roads. 170 Comment
  CAS-BOT-BC342385  Logfia gallica A. A. Heller 1914-6-2 11148 Butte Hills 8 miles north of Oroville Comment
  CAS-BOT-BC342386  Logfia gallica A. A. Heller 1914-6-2 11148 Butte Hills 8 miles north of Oroville Comment
  CHSC4377  Lolium multiflorum M. M. Gregg 1966-5-21 171 Butte NW corner of CSC campus around the artificial ski jump. Chico. Comment
  CHSC56829  Lolium multiflorum J. D. Jokerst 1980-4-22 Butte Along Hwy 32, 1.0 mi east of Chico. Comment
  CHSC6662  Lolium multiflorum Marilyn Lee 1968-3-15 112 Butte East side of Cohasset Road, 100 yards north of entrance to Chico Airport. Comment
  JEPS75439  Lolium multiflorum W. L. Jepson 1934-5-4 16606 Butte 1 1/2 mi s Nord (swales of Pine Creek, near Sacramento River); near Sacramento River, Pine Creek Comment
  JEPS117707  Lolium temulentum Lowell Ahart 2010-6-1 16761 Butte Both sides of the Guardians Trail, about 1/8 mile west of the power lines, Upper Bidwell Park, about 1 3/4 miles (air) east of Chico 172 Comment
  CHSC49556  Lolium temulentum var. leptochaeton Vernon Oswald 1984-6-3 1253 Butte Sacramento River, ca. 0.5 mi downstream from the mouth of Stony Creek. On a sandbar on the edge of the river. 39 Comment
  UC726872  Lomatium caruifolium var. denticulatum A. A. Heller 1938-4-23 15056 Butte 1/4 mi. e. Jarboe Pass (on State Hwy. #24) Comment
  CHSC42477  Lomatium macrocarpum Lowell Ahart 1987-5-11 5616 Butte South of the Forbestown Ditch, about 2 1/2 miles north-east of Forbestown. 868 Comment
  JEPS119532  Lomatium macrocarpum Lowell Ahart 2012-4-20 17897 Butte On the west side of South Rim Trail, animal trail north of Bloody Pin Trail, about 5/8 mile west of Highway 32, about 7 3/8 miles northeast of Chico, south part of Upper Bidwell Park. Comment
  CHSC39664  Lomatium marginatum Lowell Ahart 1983-6-21 4098 Butte Along Bloomer Hill Road, about 3 miles north-west of the Oroville Quincy Highway, about 16 miles north-east of Oroville. Section 30. 700 Comment
  CHSC42625  Lomatium marginatum var. marginatum Vernon Oswald 1986-4-3 1700 Butte Near the sw abutment of the Hwy 70 Bridge over the North Fork of the Feather River. Comment
  CHSC34609  Lomatium utriculatum Eric F. Heinitz 1979-4-25 2 Butte North side of Skyway. Grassy flat ca. 25m n of road. 243 Comment
  JEPS26742  Lomatium utriculatum P. C. Hutchison 1961-6-9 2092 Butte 7 mi. s. Jarbos Gap (n. fork Feather R. along Hwy. U.S. Alt. 40); n. fork Feather R. Comment
  POM319309  Lonicera Patricia Wilder 1971-6-23 5197 Butte One mile E of Forbestown on Challenge cut-off Road, near junction with Forbestown Road. East of Oroville.; Mt. Range: West slope of the Sierra Nevada; Drainage Area: Feather River. 823 Comment
  CAS-BOT-BC240448  Lonicera hispidula Margaret J. Williams; Wayne Roderick 1984-5-25 84- 23 -1 Butte Feather River Canyon, Hwy 70, 1.5 mi W of Poe Power Dam 457 Comment
  CHSC39677  Lonicera hispidula Lowell Ahart 1983-8-21 4066 Butte Just off of Bloomer Hill Road, about 1/2 mile west of the Oroville Quincy Highway, about 15 miles north-east of Oroville. 400 Comment
  CHSC869  Lotus corniculatus D. Bower 1953-8-6 Butte 1B Llano Seco. 30 Comment
  SEINET10452682  Lotus grandiflorus var. macranthus Mary Susan Taylor 1981-5-19 Taylor 3808 Butte T22N R5E sw sec 23. Berry Creek quad. Both sides of 22N31, on Chibo Ridge ca. 2 mi NW of its jct with French Creek, ca. 4 air mi S of Coyote Gap, ca. 17 air mi NE of Oro- ville. Yellow Pine Forest; gravelly decomposed granite: 2800 ft. 853 Comment
  SFV1836  Lotus humistratus B. Fuller 1962-5-26 s. n. Butte Sierra Nevada Near Stearns Road and Harrison Road. Rocky hillside near road. 535 Comment
  UC176294  Lotus purshianus var. purshianus A. A. Heller 1913-9-12 11132 Butte on Big Chico Creek Chico, Big Chico Creek Comment
  SEINET10874145  Lotus strigosus Lowell Ahart 1985-5-31 Ahart 5034 Butte Lake Oroville, 1/8 mile east of the Enterprise Launch Area, about 1/2 mile west of the Enter- prise Bridge across Lake Oroville, north-east of Oroville. Comment
  CHSC38574  Ludwigia palustris Vernon Oswald 1983-8-26 1029 Butte Upper Bidwell Park, Chico, at the retaining wall at the e end of Centennial Ave. On the bed of Chico Creek. 85 Comment
  CHSC75970  Ludwigia peploides subsp. montevidensis Lowell Ahart; Vernon H. Oswald 1999-8-13 8172 Butte Along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CHSC93351  Lunaria annua Lowell Ahart 2006-5-3 12554 Butte About 75 yards southeast of the Concow Grange building, on the west side of Big Bend Road, about 1 1/4 miles (air) south of Jarbo Gap. 548 Comment
  NY16038  Lupinus A. A. Heller 1914-2-2 11166 Butte Cañon [o]f Big Chico creek 6 miles east of Chico Comment
  CHSC84888  Lupinus affinis R. D. Fischer; Jenny Marr 2003-4-29 4 Butte Upper Bidwell Park, east side of Big Chico Creek. Located at western end of mdw and adjacent road/trail. Northern most patch approx 300 ft south of gated end of park property. 231 Comment
  CHSC24660  Lupinus albicaulis Keith Lickey 1976-4-9 55 Butte Hwy 70 ca 1 km ne of Concow Rd; on north shoulder. 609 Comment
  CHSC96862  Lupinus albicaulis Lowell Ahart 2007-6-3 13979 Butte On the east side of Highway 70, about 1/4 mile northeast of the Poe Dam on the North Fork of the Feather River. 486 Comment
  CHSC97355  Lupinus albicaulis Paul Maslin 2005-4-27 52 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). UTM: 10610536E 4412518N. 292 Comment
  UCD105852  Lupinus albicaulis E. B. Copeland 1929-7-17 378 Butte above Jonesville. 2000 Comment
  CHSC35985  Lupinus albicaulis var. shastensis J. D. Jokerst 1982-5-16 1571 Butte Ponderosa Way 0.5 mi N of its jct, with Lower Forbestown Road. 731 Comment
  CHSC38504  Lupinus albifrons Vernon Oswald 1983-4-1 252 Butte Upper Bidwell Park, Chico, s of the creek and e of the footbridge near the 4th green of the Golf Course. 91 Comment
  SEINET10870639  Lupinus albifrons var. albifrons Melvin L. Conrad, David B. Dunn; Douglas G. LeDoux 1973-6-5 Conrad 7041 Butte Jarbo pass on hwy 70. Yellow pine, california buckeye, and shrubby lupine 701 Comment
  POM24999  Lupinus albifrons var. eminens C. C. Bruce 1892-05 2022 Butte Creek bottoms Comment
  SD2410  Lupinus angustiflorus E. B. Copeland 1929-7-17 378 Butte Above Jonesville, on porous soil in full sunshine 2000 Comment
  CHSC91265  Lupinus apertus L. P. Janeway 2005-5-29 8405 Butte Northern High Sierra Nevada. Top of south end of Granite Ridge (between Rock Creek and Camp Creek), about 2.3 km south of Kimshew Point. On southeast-facing side of ridge top. 1317 Comment
  CHSC51045  Lupinus arbustus J. D. Jokerst 1985-4-22 2261 Butte Top of Cohasset Ridge in community of Cohasset, SE of Cohasset Hwy and Cave Creek. 609 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
  HSC32640  Lupinus bicolor Dave Knorr 1974-4-20 130 Butte Oroville's Table Mtn. near Cherokee Rd. Comment
  SEINET10484853  Lupinus bicolor Barbara J. Ertter, Jeffrey Strachen; Lowell Ahart 1980-5-7 Ertter 3306 Butte North Table Mountain ca 5 airmiles north of Oroville, flat-topped basalt butte, near parking area. 396 Comment
  SEINET10484922  Lupinus bicolor subsp. tridentatus Mcbride 1981-4-18 MCBRIDE 1 Butte Small population, 1.5 km e of chico and 1 km n of little chico creek. Open Area within transitional zone between valley loland and foothills. 90 Comment
  CHSC87808  Lupinus latifolius var. columbianus Paul Maslin 2004-4-21 25 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). UTM: 10611499E 4411082N. 548 Comment
  UC1564806  Lupinus lepidus var. sellulus V. Oswald and L. Ahart 1989-7-12 3847 Butte ca 3 mi air se Philbrook Reservoir (road between Jones Meadow and Lotts Lake) 1901 Comment
  CHSC34689  Lupinus nanus M. S. Taylor 1981-5-5 3601 Butte E side of Lumpkin-LaPorte Rd, 1 mi n of Enterprise bridge over south fork Feather River, ca. 10 air mi e of Oroville. 457 Comment
  UC865348  Lupinus nanus A. A. Heller 1938-4-14 15034 Butte summit of Table Mountain 609 Comment
  SEINET10452645  Lupinus nanus Heidi H. Schmidt 1993-6-15 Schmidt 865 Butte Plumas National Forest on state road 23N06 1.5 miles N of the junction with highway 70. Mixed hardwood forest. 880 Comment
  SEINET8057003  Lupinus nanus M. J. Williams 1967-4-22 s.n. Butte Table Mt., Cherokee Road near Oroville 610 Comment
  CHSC3651  Lupinus nanus var. apricus Robert D. Briggs 1966-3-28 R.- 94 Butte East end of table Mt., 2 miles east of Cherokee. Comment
  JEPS117212  Lupinus nanus var. vallicola Lowell Ahart 2010-5-16 16679 Butte About 1/4 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville 378 Comment
  CHSC48536  Lupinus obtusilobus Vernon Oswald; Lowell Ahart 1987-7-1 3069 Butte Humbug Rd. 0.3 mi w of Butte Creek, ca. 2 mi (air) ese of Jonesville. 1755 Comment
  CHSC38512  Lupinus pachylobus Vernon Oswald 1983-3-13 166 Butte Upper Bidwell Park, Chico, ca. 100 ft s of Upper Park Rd. and 800 ft e of Parking Area N at Salmon Hole. 176 Comment
  CHSC94029  Lupinus pachylobus R. D. Fischer 2005-4-9 733 Butte Sierra Nevada foothills, adjacent Hwy. 32, below Forest Ranch in the Big Chico Creek Ecological Reserve off Lookout Trail. Plants growing on roadbed of the main Overlook Trail in old refuse pile. 487 Comment
  CAS-BOT-BC8228  Lupinus pennellianus Amos Arthur Heller 1940-6-5 15705 Butte Along the Feather River Higway between Arch Rock Tunnel and Pulga Comment
  CAS-BOT-BC8229  Lupinus pennellianus Amos Arthur Heller 1940-6-5 15705 Butte Along the Feather River Higway between Arch Rock Tunnel and Pulga Comment
  SEINET3449375  Lupinus polycarpus Unknown 2003-4-8 10050 Butte Oroville, Oroville, about 7 air miles north, North Table Mountain, northwest of Cherokee Road, about 0.25 miles northwest of the iron gate and fence 320 Comment
  SEINET10452664  Lupinus stiversii Mary Susan Taylor 1980-5-27 Taylor 2670 Butte T21N R6E sc sec 30. Big Bend quad. On Big Bald Rock, ca. 3 mi E of Lake Madrone; Yellow Pine Forest, large granite dome 998 Comment
  SEINET10939999  Lupinus succulentus Mary Susan Taylor 1982-4-28 Taylor 4354 A Butte T17N R1E se/s sec 13. Pennington quad. Graylodge Waterfowl Refuge, n side of Rutherford Rd, 1/8 mi w of Pennington Rd, ca. 12 mi sw of Gridley. 70 ft. 21 Comment
  CHSC52705  Luzula cascadensis L. P. Janeway 1987-6-13 2207 Butte Along Dogwood Creek; road to Mayaro 2.4 mi E of Concow Road. 990 Comment
  CAS-BOT-BC436564  Luzula cascadensis H. F. Copeland 1920-8-29 145 Butte Jonesville meadow 1219 Comment
  SEINET10472473  Luzula comosa Mary Susan Taylor 1981-4-8 Taylor 3514 Butte T22N R4E east center sec 1, Pulga SW quad. On serpentine slope, w side of Ponderosa Way, where powerlines cross the rd on Rocky Ridge, ca. 6 mi n of Jarbo Gap on Hwy 70, ca. 21 air mi n of Oroville. 3000 ft. 914 Comment
  CHSC52714  Luzula comosa var. subsessilis L. P. Janeway 1987-5-10 2040 Butte Near PG and E ditch ca 3/4 mi north of DeSAbla Reservoir and near where Doe Mill Road crosses the ditch. 853 Comment
  UC1191829  Lycopus americanus Herbert L. Mason and Verne Grant 1946-8-14 13025 Butte canal near big pond on Sacramento Outing Club Comment
  UC1594713  Lycopus americanus Lowell Ahart 1992-7-23 6830 Butte ca. 2 mi. w. Oroville Dam (n. side of Thermalito Diversion Pool, near Longs Bar Monument); Lake Oroville Recreation Area 76 Comment
  CDA40736  Lycopus americanus Margaret Bellue 1947-7-23 s.n. Butte Afton Road near Biggs. 0 Comment
  UCD124965  Lycopus americanus L. E. Hazeltine 1916-6-24 s.n. Butte Chico. Comment
  CHSC1029  Lythrum hyssopifolia V. Holt 1935-5-28 Butte Butte Creek canyon. 91 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
  CHSC68836  Lythrum salicaria Lowell Ahart 1997-6-29 7742 Butte On the south side of Wyman Ravine, on the west side of Lone Tree Road, about 6 miles south of Oroville. 36 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
  CHSC84026  Lythrum tribracteatum Lowell Ahart 2003-6-23 10311 Butte In a rice field, Peter Ahart Ranch, about 300 yards east of the Palermo Honcut Highway, about 2 1/8 miles north of Honcut, about 12 miles south of Oroville. 30 Comment
  CHSC44272  Madia citrigracilis Vernon Oswald; Bruce Baldwin 1988-6-16 3388 Butte Camp Creek Rd. ca. 0.5 mi ene of Pulga. 512 Comment
  CAS-BOT-BC342718  Madia elegans Mrs. C. C. Bruce 1897-4-1 1986 Butte Forest - Ranch Comment
  JEPS104323  Madia elegans subsp. elegans Lowell Ahart 2003-6-30 10321 Butte North of the small stream, on the e side of Ponderosa Way, ca 2 1/2 mi (by road) sw of the Ponderosa Dam, ca 2 mi (air) nw of Forbestown. 578 Comment
  CHSC43621  Madia exigua Vernon Oswald 1984-5-23 1200 Butte Beside the dirt road leading to the falls on Bear Ranch Creek s-e of Calif. Hwy 70 at the Cresta Rest Area. 487 Comment
  CHSC34056  Madia gracilis L. Ahart; M. S. Taylor 1981-8-15 3037 Butte Near the dirt road on n side of Snag Lake, ca. 10 mi n of Inskip. 1500 Comment
  CHSC40301  Madia gracilis Lowell Ahart 1985-5-31 5035 Butte About 25 feet below the high water line of Lake Oroville, 1/8 mile east of the Enterprise Launch Area, about 1/2 mile west of the Enterprise Bridge across Lake Oroville, north-east of Oroville. 274 Comment
  SEINET10474817  Madia gracilis Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4232 Butte T21N R6E ne sec 2. Ca. 1/4 mi w of Milsap Bar, ca. 25 mi ne of Oroville. Yellow Pine Forest; 500 m. 500 Comment
  JEPS107879  Madia subspicata Lowell Ahart 2005-5-7 11788 Butte On the east side of North Honcut Creek, Peter Ahart Ranch, about 1 1/4 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville 48 Comment
  CHSC28499  Maianthemum racemosum M. S. Taylor; J. Jokerst 1979-7-21 2152 Butte Along trail below Humboldt Peak, on Humboldt Summit. 2154 Comment
  CHSC66293  Maianthemum racemosum Lowell Ahart 1996-6-5 7683 Butte About 1/10 mile north of the bridge across the South Fork of the Feather River, about 1 mile north of Golden Trout Crossing, about 7 air miles east of Feather Falls. 914 Comment
  CAS-BOT-BC510727  Maianthemum racemosum subsp. amplexicaule A. A. Heller 1915-6-11 11968 Butte Chico Meadows in the Sierra Nevada 1219 Comment
  CHSC47079  Maianthemum stellatum R. A. Schlising; L. Janeway 1988-7-1 4553 Butte N part of county, NE of Snow Mountain. Comment
  CHSC44376  Malacothrix floccifera Lowell Ahart 1988-6-21 6050 Butte Along the edge of the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap/ 271 Comment
  CHSC45328  Malva neglecta Vernon Oswald 1983-10-10 1058 Butte City of Chico Sewage Treatment Plant on Chico River Rd., 1/4 mi w of its jct with Alberton Ave. Comment
  POM85083  Malva nicaeensis C. C. Bruce 1897-04 1919 Butte [name of locality illegible] Comment
  JEPS87781  Malva parviflora Lowell Ahart 1994-3-30 7277 Butte about 7 mi n Oroville (garden area at ne corner of Oregon City School, Oregon City); Oregon City 365 Comment
  SEINET11985464  Marah fabacea J. K. Johnson 1978-1 10 Butte E side of Sacramento River, 50 yds N of Big Chico Creek, 6 mi WSW of Chico 40 Comment
  CHSC65687  Marah fabacea var. agrestis Vernon H. Oswald 1996-3-29 7278 Butte Between ranch road and the slough on the E side of Goodman Opening at the S end of the Riparian Sanctuary. Sacramento River National Wildlife Refuge, Llano Seco Unit. 27 Comment
  CHSC63048  Marah watsonii Vernon H. Oswald 1994-4-14 6105 Butte Old railroad grade along the N. Fork Freather River ca. 0.25 mi W of Stony Creek, E of Poe Powerhouse. 301 Comment
  CHSC19932  Marrubium vulgare M. S. Taylor 1975-2-16 386 Butte Abundant ca. 2 mi s of Concow Reservoir on Jordan Hill Rd. Comment
  CHSC1206  Meconella californica S. Carter 1929-3-25 Butte Richardson Springs road. Comment
  UCD95459  Meconella californica R. N. Bowman 1977-3-30 1350 Butte 0.1 mile southwest of Nimshew covered bridge on Humbug Road, ca. 6 miles southwest of Paradise. 228 Comment
  CHSC38515  Medicago arabica Vernon Oswald 1983-5-2 419 Butte Upper Bidwell Park, Chico, beside the dirt road which leads to the Police Pistol Range on the s edge of the Golf Course. 91 Comment
  SEINET8721630 Image available Medicago ciliaris Roland McKee 1908-1 7742 Butte Chico Comment
  SEINET10874084  Medicago lupulina Lowell Ahart, Peter Ahart 1984-6-10 Ahart 4693 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown; Yellow Pine Forest; 700 m. 700 Comment
  JEPS107779  Medicago praecox Lowell Ahart 2005-5-2 11779 -A Butte Overflow area on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico 25 Comment
  CHSC67412  Melica californica James D. Jokerst; R. A. Schlising 1985-4-8 2218 Butte Serpentine Point W of and adjacent to Hwy. 70 ca. 0.5 mi S of Lunt Rd. 548 Comment
  CHSC105478  Melica harfordii L. P. Janeway 2010-6-19 10021 Butte Northern High Sierra Nevada. About 1.2 km south of Bald Rock Dome near a saddle along the ridge between Middle Fork Feather River and Bean Creek drainage; along Bean Creek Road at spur road to Dome Trail trailhead. 858 Comment
  CHSC42928  Melica harfordii Lowell Ahart 1987-7-8 5798 Butte Along Big Bar Mountain Road, about 3 miles south-west of Coyote Gap, south-east of Pulga. 1280 Comment
  CHSC74168  Melica harfordii B. Castro; L. Gehrung 1998-7-2 800 Butte Ca 6 air mi NW of Brush Creek, ca 1 mi SE of Hungry Hunt Peak, ca 50 ft N of USFS Rd 23N28 as it loops around a drainage. 1021 Comment
  RSA700278  Melica subulata L. Ahart 2004-7-23 11300 Butte On the east side of the road, north of the West Branch Campground, south of the bridge across the West Branch of the Feather River. About 1.5 miles (air) southeast of Butte Meadows. 1457 Comment
  CHSC24804  Melilotus indicus E. L. Rilla 1976-9-18 28 Butte .5 mi s of Gridley Rd on Pennington Rd in the Gray Lodge Waterfowl Management Area. Bench Marker 72, 1 mi directly w of collection area. 21 Comment
  CHSC102727  Melissa officinalis Lowell Ahart 2009-6-19 15949 Butte On the east side of Big Chico Creek, southwest of the meadow, about 30 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 209 Comment
  CHSC34144  Melissa officinalis L. Ahart 1981-9-27 3210 Butte On sides of dredger piles ca. 1/8 mi ne of jct of Lower Wyandotte Rd and Upper Palermo Rd, ca. 4 mi ne of Palermo. 80 Comment
  CHSC110327  Mentha arvensis B. Castro; Margie Graham 2006-8-25 1608 Butte Sacramento Valley. Ca 3 mi W of Highway 99 and 2 mi S of Richvale and ca 250 ft N of Hwy 162 in Cherokee Canal.. On E side of canal abt 120 ft in from toe of E levee. 29 Comment
  SBBG127999  Mentha arvensis L. Ahart 2009-7-9 16009 Butte E side of Ten Mile House Rd, upper Bidwell Park, ca. 0.75 mi W of Hwy 32, ca. 10 mi NE of Chico 236 Comment
  CAS-BOT-BC7430  Mentha arvensis f. brevipilosa Amos Arthur Heller 1914-7-11 11561 Butte Chico-Hamilton road, 6 miles NW of Chico Comment
  JEPS115650  Mentha spicata var. spicata Lowell Ahart 2009-8-13 16279 Butte Near Big Chico Creek, about 150 yards east of the diversion structure that controls Mud Creek Diversion and Lindo Channel, Chico 68 Comment
  CHSC39241  Micranthes californica M. S. Taylor; K. Tharp 1983-3-12 5235 Butte Along small rd off Stillson Canyon Rd (leading to Mannion property), ca. 3 mi sse of Chico. 152 Comment
  CHSC39607  Micranthes integrifolia Lowell Ahart 1983-2-21 3902 Butte Peter Ahart Ranch, about 2 1/2 miles north and 1/2 mile east of Honcut. 35 Comment
  LA209006  Micranthes integrifolia E. B. Copeland; 1929-7-20 369 Butte Jonesville 1550.0 Comment
  CAS-BOT-BC429075  Micranthes odontoloma Mrs. C. C. Bruce 1898-7-1 2409 Butte Lassen peaks Comment
  CHSC11903  Micranthes oregana E. B. Copeland 1929-7-20 369 Butte Jonesville. In swamp. 1550 Comment
  CHSC101220  Micropus californicus var. californicus G. F. Hrusa; R. Gross, L. Houser 2008-4-11 17094 Butte Open, chaparral slopes with woodland on N faces immediately below Indian Valley Reservoir spillway into North Fork Cache Creek tailrace. 396 Comment
  HSC32400  Micropus californicus var. californicus Gary S. Lester 1974-4-20 102 Butte Along Pentz Rd. 300 yds. S of intersection with Clark Rd. 76 Comment
  CAS-BOT-BC348882  Microseris douglasii subsp. douglasii A. A. Heller 1914-4-14 11291 Butte 8 miles north of Oroville Comment
  POM35005  Microseris lindleyi C. C. Bruce 1898-05 2461 Butte [No locality information provided] Comment
  CHSC3263  Microsteris gracilis M. L. Hillier 1966-3-4 Butte Along rd. side about 400 yds. s. of Rock Creek bridge of Cohasset Rd. Comment
  CHSC32660  Microsteris gracilis M. S. Taylor; L. Hanson 1981-3-16 3412 Butte E side of Truex Rd, ca 1/2 mi s of its jct with Hwy 70, ca. 7 mi n of Oroville. 304 Comment
  CHSC34992  Microsteris gracilis R. A. Schlising 1980-6-10 3664 Butte Along Humboldt Road, 1.9 mi NE of jct with Highway 32 at Lomo. Comment
  CHSC44329  Microsteris gracilis Lowell Ahart 1988-3-28 5956 Butte Near the dirt road to Sugar Pine Point, about 1/8 mile south of Lumpkin Ridge Road, about 1 1/2 miles east of Camp 18, about 8 miles east of Feather Falls. 1280 Comment
  CHSC45354  Microsteris gracilis Vernon Oswald 1987-4-16 2332 Butte Butte Creek Reserve on the n side of Butte Creek e of the Skyway. 74 Comment
  CHSC21050  Mimetanthe pilosa M. S. Taylor 1975-10-3 938 Butte Scattered on sand bar on Sacramento River, ca. 1/4 mi n of the washout on River Rd, ca. 10 mi w of Chico. 36 Comment
  CHSC42770  Mimetanthe pilosa Lowell Ahart 1987-8-8 5853 Butte On the bottom of North Honcut Creek, about 2miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 67 Comment
  HSC23384  Mimulus angustatus G. G. Poulsen, Jr. 1971-4-13 9 Butte Ca. 2 mi. N of Oregon City turnoff on Cherokee Rd. 427 Comment
  HSC32580  Mimulus angustatus Linda M. Barker 1974-4-20 152 Butte Cherokee-Table Mt. Rd., 2 mi. S of Cherokee 244 Comment
  SEINET12319567  Mimulus angustatus C. A. Gardner 1974-1 14 Butte Table Mountain, ca 6 mi N of Oroville 244 Comment
  UCD96092  Mimulus angustatus Dena Grossenbacher; Brian Green 2008-5-2 812 Butte Campbell Flat, about 0.6 miles south of Humpyback and Cherokee Road junction along both sides of Cherokee Road and within 20 meters of it, North Table Mountain. 424 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
  JEPS4727  Mimulus bicolor Lincoln Constance 1941-5-28 2831 Butte Magalia Sierra Nevada foothills, South Branch Feather River 487 Comment
  UC600647  Mimulus bicolor E. B. Copeland 1931-5-9 Butte Jonesville Comment
  RSA29027  Mimulus bicolor Lincoln Constance 1941-5-28 2831 Butte South Branch of the Feather River at Magalia, Sierra Nevada foothills. 488 Comment
  UC1609349  Mimulus floribundus Lowell Ahart 1993-5-10 6934 Butte about 3/4 mi n and 2 1/4 mi e Honcut (about 12 mi se of Oroville); Peter Ahart Ranch 36 Comment
  JEPS5550  Mimulus glaucescens R. F. Hoover 1936-5-21 1158 Butte 3 mi n Chico Comment
  JEPS86890  Mimulus guttatus David M. Thompson 1988-6-8 938 Butte 0.1 mi nw Hwy 70 (along Pulga Road (Pulga Road leaves Hwy 70 at w side of Feather River bridge)) 500 Comment
  UC886180  Mimulus guttatus A. A. Heller 1917-7-26 12813 Butte Butte Meadows 1280 Comment
  UCD96009  Mimulus microphyllus Dena Grossenbacher; Brian Green 2008-4-8 759 Butte About 0.5 miles west of main parking area at North Table Mountain Ecological Reserve located on Cherokee Road just south of junction with Derrick Road. 373 Comment
  UCD96094  Mimulus microphyllus Dena Grossenbacher; Brian Green 2008-5-3 813 Butte About 2.25 miles from Bardees Bar Road junction on forest service road 22N37. 328 Comment
  JEPS7098  Mimulus moniliformis Rimo Bacigalupi with L. R. Heckard 1951-8-7 3474 Butte 1/4 mi e Butte Meadows road (at crossing of Chaparral-Butte Meadows road, at very edge of boundary with Tehama Co.); Butte Creek 1325 Comment
  CHSC28680  Mimulus moschatus M. S. Taylor 1978-7-21 1827 Butte On s side of Oroville-Quincy Hwy along creek in meadow in Yellow Pine Forest, ca. 14 mi n of Lake Madrone. 1463 Comment
  CHSC44808  Mimulus moschatus R. Banchero 1980-6-6 201 Butte Along Bald Rock Rd 1.7 mi S of the N jct with Hwy 162, 7.6 mi NE of the S jct with Hwy 162, ca 1/4 mi E of the Rd. 963 Comment
  RSA754817  Mimulus moschatus L. Ahart 2009-6-30 15978 Butte Along a small flowing stream about 55 yards SE of the gate, about 45 yards E of Ten Mile House Road, Upper Bidwell Park, about 3/4 air miles W of Highway 32, about 10 miles NE of Chico. 270 Comment
  JEPS121901  Mimulus primuloides var. primuloides Lowell Ahart 2014-7-10 19613 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  SEINET10570287  Mimulus torreyi Mary Susan Taylor 1980-5-27 Taylor 2660 Butte T21N R6E sc sec 30. Big Bend quad. On Big Bald Rock, ca. 3 mi E of Lake Madrone; Yellow Pine Forest, large granite dome 998 Comment
  RSA21489  Mimulus tricolor Carl B. Wolf 1937-5-14 8671 Butte Sacramento Valley; 5 miles W of Chico on Hamilton City Road. 46 Comment
  CHSC55486  Minuartia californica Dan Morgan 1991-4-21 16 Butte Indian Springs Rd., .3 mi w of Neal Rd., Paradise. 243 Comment
  UC1125782  Minuartia californica J. E. Sowder 1935-6-10 601 Butte 6 mi se Durham; Chico Quadrangle Comment
  UCD98264  Minuartia californica Michael A. Vincent; Ethan H. Freid 1998-4-6 8122 Butte Table Mountain. Comment
  POM285522  Minuartia californica Lyman Benson 1935-3-27 6359 Butte 10 mi. W. of Oroville. Watershed: Sacramento River. 91 Comment
  UCD98228  Minuartia cismontana G. F. Hrusa 1989-4-15 5922 Butte North Table Mountain. On west side of Cherokee Mountain Road. 300 Comment
  UCSB44145  Minuartia douglasii 1979-5-13 Butte 0.7 miles west on Lunt Road from Highway 70 Comment
  SEINET10537429  Mollugo verticillata Lowell Ahart 1985-10-12 Ahart 5204 Butte At the end of Nelson Bar Road, about 1 mile south of Kunkle Reservoir, about 3 miles south of Paradise. Comment
  SEINET10965504  Mollugo verticillata Lowell Ahart 1984-8-19 Ahart 4787 Butte West of Pacific Heights Road, about 5 miles south-west of Oroville. Comment
  CAS-BOT-BC222752  Monardella odoratissima Lowell Ahart 1980-7-4 2453 Butte Near Hurleton 600 Comment
  CHSC52037  Monardella odoratissima subsp. pallida B. Castro; L. P. Janeway, R. A. Schlising 1988-7-23 279 Butte W edge of Scotts John Rd 1.7 mi n. of its jct with Humbug/ Humboldt Rd, in open flat overlooking Scotts John Ck. 1828 Comment
  HSC87333  Monardella odoratissima subsp. pallida L. P. Janeway 1987-7-4 2422 Butte Last Chance Creek, along rd. to Jones Meadow 6.5 mi. from Inskip 1524 Comment
  CHSC102988  Monardella sheltonii Lowell Ahart 2009-6-3 15822 Butte On the west side of Ten Mile House Road, about 200 yards northwest of the table at the old homestead, Upper Bidwell Park, about 3/4 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 232 Comment
  CHSC109560  Monardella sheltonii L. P. Janeway 2012-6-23 10888 Butte Northern High Sierra Nevada. Southwest spur of Rocky Ridge, 0.6 air km south of Batchelor Point; along Road 23Np6E 0.8 road km southeast of Rim Road/Ponderosa Way. 895 Comment
  UC2035834  Monardella villosa subsp. villosa Chester Dudley 1940-6-1 Butte near Magalia Comment
  CHSC46452  Monolepis nuttalliana V. Oswald; L. Ahart 1989-6-27 3833 Butte Humbug Rd at Butte Creek House, ca. 3.3 mi (air) se of Jonesville. 1767 Comment
  CHSC46732  Montia fontana subsp. amporitana Lowell Ahart 1978-3-15 1614 Butte Peter Ahart Ranch, about 1 1/4 miles north and 1 1/4 miles east of Honcut, about 12 miles south of Oroville. 42 Comment
  CHSC62157  Montia fontana subsp. chondrosperma B. Castro; L. P. Janeway, M. Meyer, P. Kelly 1987-3-26 51 Butte Ca 1 mi E of Chico on the S side of Humboldt Rd, near jcn with Bruce Rd, in an area with vernal pools and swales. 76 Comment
  CHSC34698  Montia parvifolia M. S. Taylor 1981-5-12 3692 Butte Jct of French Creek and 22N93, ca. 3.5 mi s of Coyote Gap, ca. 17 air mi ne of Oroville. 853 Comment
  SEINET10572672  Montia parvifolia Mary Susan Taylor 1981-5-7 Taylor 3634 Butte T20N R6E ne sec 33, Forbestown quad. N side of Ponderosa Way, N of the Sucker Creek bridge, ca. 4 air mi SW of Feather Falls community. Yellow Pine Forest; 1200 ft. 366 Comment
  SEINET10962338  Montia sibirica var. heterophylla Mary Susan Taylor 1977-7-15 Taylor 1402 Butte Butte Meadows, ca. 20 mi NE of Chico off Hwy 32. 1326 Comment
  SD8156  Montia verna Mrs. R. M. Austin 1883-1 Butte Butte Co Comment
  CAS-BOT-BC73670  Morus alba John Thomas Howell 1961-9-22 36738 Butte Sierra Nevada - bank of Feather River, Oroville. 53 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
  JEPS119547  Morus alba Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17864 Butte East of the Deer Pen, between Tables 12 & 13 Lower Bidwell Park, Chico. Comment
  RSA500430  Muhlenbergia andina Vernon H. Oswald, L. Ahart 1989-8-15 3937 Butte Soda Ridge Road, 1.4 miles west of its junction with Coon Hollow Road, ca. 1.2 miles (air) north of Philbrook Reservoir. 1753 Comment
  SEINET10605684  Muhlenbergia andina Lowell Ahart 1987-6-9 Ahart 5740 Butte On dry sand, around rocks, on the west side of the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  UC1563262  Muhlenbergia mexicana unknown 1990-9-30 6610 Butte 1/8 mi ne Canyon Creek Bridge across Lake Oroville (creek bottom below high water line of lake); East Fork of Canyon Creek 243 Comment
  CHSC11973  Muhlenbergia minutissima E. B. Copeland 1929-7-29 341 Butte Above Jonesville. On bank of pond. 1750 Comment
  UC398891  Muhlenbergia minutissima E. B. Copeland 1929-7-29 341 Butte above Jonesville (bank of pond) 1750 Comment
  CHSC6180  Muhlenbergia rigens J. Wheeler 1968-5-16 361 Butte N of Bare Hole, Upper Bidwell Park. Comment
  SEINET10508208  Muhlenbergia rigens Mary Susan Taylor 1979-10-13 Taylor 2253 Butte T22N R4E sw 1/4 sec 21. Riparian Woodland along creek crossing Jordan Hill Road (Ponderosa Way on some maps), ca. 0.8 mi N of its jct with Concow Road, ca. 5 mi E of Paradise. With J.D. Jokerst. 427 Comment
  RSA0025076  Myriophyllum aquaticum L. P. Janeway, B. Castro, Laurie Archambault 2006-1-16 8554 Butte Sacramento Valley. Gray Lodge Wildlife Area; in shallow sluggish canal between the main waterfowl viewing parking area and the headquarters area. 18 Comment
  CHSC42813  Narthecium californicum L. P. Janeway 1987-6-27 2363 Butte On east slope of Bald Mtn, along the Concow Rd. 1706 Comment
  CHSC13808  Nassella pulchra J. G. Moore 1969-4-18 11 Butte Along side road on Cherokee Rd. 2.5 mi. s of Hwy. 70. 365 Comment
  CHSC6156  Nassella pulchra E. Parreno 1968-4-19 66 Butte Roadside of Cherokee Rd. e of Cherokee cemetery. Comment
  CAS-BOT-BC60375  Nasturtium officinale Lowell Ahart 1989-5-23 6239 Butte North of the new subdivision road, 0.5 mile east of Dunstone Drive, about 0.5 mile north of Bangor Park Road. 76 Comment
  CHSC100805  Navarretia capillaris R. A. Schlising; L. Janeway 1988-7-16 4604 Butte N part of county, S of Humbug Summit at upper reaches of Willow Creek; edge of meadow. 1950 Comment
  CHSC35114  Navarretia capillaris R. A. Schlising 1980-7-16 3912 Butte N part of county NE of Butte Meadows and SW of Jonesville; meadow and streamside of Butte Creek near Cherry Hill Campground. Comment
  JEPS121907  Navarretia capillaris Lowell Ahart 2014-7-16 19681 Butte About 60 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  CHSC61326  Navarretia divaricata subsp. divaricata Lowell Ahart 1993-7-29 7125 Butte On the east side of an old water ditch for gold mining, about 1/8 mile north of the Snow Mine, about 2 1/2 miles north-east of Bald Mountain, about 6 1/2 miles north-east of Stirling City. 1676 Comment
  CHSC97038  Navarretia divaricata subsp. vividior B. Castro; Plumas NF/Feather River RD botanists 2005-6-6 1483 Butte On SW end of Lumpkin Ridge, ca 6 3/4 air mi NE of town of Feather Falls and 1.3 mi E of the 'Camp 18' site on topo maps. Ca 300 ft SE of USFS Rd 22N27 (Lumpkin Rd). ca 2 mi E of its jcn with the County Rd and USFS Rd 22N94 to Fall River. 1295 Comment
  RSA73728  Navarretia filicaulis Mary E. Wall 1940-7-24 s.n. Butte Paradise. Comment
  CHSC105274  Navarretia heterandra Lowell Ahart 2010-6-20 16833 Butte About 1/4 mile north of Cox Lane, about 1 1/2 miles east of Palermo Honcut Highway, Guidci Ranch, about 7 1/2 miles (air) southeast of Oroville. 59 Comment
  CHSC38600  Navarretia heterandra Vernon Oswald 1983-5-22 531 Butte Upper Bidwell Park, Chico, along the n side of Horseshoe Lake. 100 Comment
  CHSC44338  Navarretia heterandra Lowell Ahart 1988-5-5 5981 Butte In pasture fields, Peter Ahart Ranch, about 2 1/4 miles north and 1 1/2 miles east of Honcut, about 12 miles south of Oroville. 42 Comment
  UCD33122  Navarretia heterandra Beecher Crampton 1966-6-27 7767 Butte Butte County, ca. 13 miles N.W. of central Chico (indirect line) about 1 mile east of Hwy. 99, Roney Ranch. Comment
  CHSC116720  Navarretia intertexta Lowell Ahart 2016-5-24 20864 Butte On the bottom of a large drainage, about 50 yards north of the ditch, about 150 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. 44 Comment
  RSA755759  Navarretia intertexta subsp. intertexta L. Ahart 2009-5-23 15766 Butte West side of Guardians Trail, just northwest of Pine Trail, Upper Bidwell park, about 3/8 air mile southwest of the intersection of Highway 32 and Ten Mile House Road, bout 10 miles northeast of Chico. 382 Comment
  SEINET7072733  Navarretia intertexta subsp. intertexta A. G. Vestal 1963-5-9 s.n. Butte About 11 miles southeast of Chico on Route 99. UTM Zone 10, 612125mE, 4386570mN. Coordinate datum: NAD 27.) Comment
  CHSC27992  Navarretia leptalea M. S. Taylor 1978-7-18 1688 Butte On n side of Old Humboldt Rd, ca. 1 mi e of jct of Old Humboldt Rd and Hwy 32. 1326 Comment
  CHSC31164  Navarretia leptalea M. S. Taylor 1978-7-19 1762 Butte On e side of Upper Scotts John Rd, ca. 3 mi n of its jct with Scotts John Rd, ca. 7 mi ne of Jonesville. 1889 Comment
  UC1609318  Navarretia leptalea subsp. leptalea Lowell Ahart 1993-6-26 7035 Butte about 1 (air) mi nw Lost Creek Reservoir Dam (Jackass Flat, Mooreville Ridge); nw of Lost Creek Reservoir Dam, Mooreville Ridge, Jackass Fl 1158 Comment
  UC196266  Navarretia leptalea subsp. leptalea A. A. Heller 1914-7-22 11590 Butte Sierra Nevada between La Loma and Little Summit; Sierra Nevada btw La Loma and Little Summit 1219 Comment
  CHSC59336  Navarretia leucocephala J. L. Guardino 1992-4-21 24 Butte On Cana Pine Creek Rd., 0.5 mi sw of Hwy 99. Near vernal pool. 60 Comment
  SJSU11523  Navarretia leucocephala J. B. Willis Jr. 1969-5-3 Butte by Cherokee Rd 8 mi NE of Oroville Comment
  CHSC28478  Navarretia nigelliformis R. A. Schlising 1979-6-3 3431 Butte Richvale vernal pools, 1/4 mi s jct Hwy 99 and 162 to Oroville, across from Thermalito Afterbay. Comment
  CHSC36708  Navarretia nigelliformis D. H. Ikeda 1980-5-8 348 Butte 0.3 mi n of intersection of Pentz Rd. and Williams Rd. on e side road. In vernal pools. 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
  CHSC27501  Navarretia viscidula subsp. purpurea Robert A. Schlising 1978-5-29 3283 Butte Bidwell Park, Chico, near the end of paved road at golf course and old rifle range. Comment
  CHSC40403  Nemacladus capillaris Lowell Ahart 1985-6-17 5059 Butte Near a small seep, 100 yards south of the dirt road, 1 1/2 miles east of Camp 18, about 8 miles northeast of Feather Falls. 975 Comment
  SEINET12331843  Nemacladus capillaris Unknown 1985-1 5059 Butte Lumpkin Ridge, 1-1/2 mi E of Camp 18, about 8 mi north-east of Feather Falls 975 Comment
  UC1562431  Nemacladus interior Lowell Ahart 1990-5-25 6495 Butte about 1.25 mi nw Enterprise Bridge across Lake Oroville (about 0.25 mi w of Enterprise Boat Launch Area, just below the high water line of Lake Oroville); Lake Oroville 274 Comment
  CAS-BOT-BC219364  Nemophila John Thomas Howell 1976-4-1 51524 Butte Table Mountain, 4 to 5 miles north of Oroville 152 Comment
  CHSC31177  Nemophila heterophylla M. S. Taylor 1979-5-4 1994 Butte Millsap Bar Campground, ca. 9 mi ne of the jct of Millsap Bar Rd and Brush Creek Rd, ca. 26 mi ne of Oroville. 1005 Comment
  CHSC90479  Nemophila heterophylla Lowell Ahart; Paul Maslin, John Dittes 2005-3-17 11679 Butte Big Chico Creek Ecological Reserve. On the west side of Chico Canyon Road, about 1 mile (air) west of Highway 32, about 7 miles (air) northeast of Chico. 236 Comment
  RSA769679  Nemophila heterophylla L. Ahart 2009-4-3 15531 Butte North margin of gravel road, east of Cedar Grove Parking Area in Lower Bidwell park, Chico 67 Comment
  UC1292078  Nemophila heterophylla A. A. Heller 1926-3-24 13913 Butte along Chico Creek about 4 mi e Chico; e of Chico, Chico Creek Comment
  UC126923  Nemophila heterophylla H. M. Hall 1908-4-5 8025 Butte near Oroville (in the foothills of the Sierra Nevada); foothills Sierra Nevada, nar Oroville 150 Comment
  CHSC62467  Nemophila menziesii var. menziesii B. Castro; L. Janeway 1991-4-19 443 Butte Ca 10 air mi NE of Oroville, 0.25 mi NW of Oregon Gulch, on gentle E-facing slope in N part of a 'Y' formed by jcn of old RR bed and road from Oregon Gulch to Hollow Spring. 295 Comment
  CHSC95152  Nemophila spatulata R. D. Fischer 2005-6-5 828 Butte Chico Meadows. Northern Sierra Nevada, n. of Forest Ranch, 5 miles w. of Hwy 32 off Humboldt Road to Butte Meadows and c. 3 miles n. to Chico Meadow (Camp Lassen, BSC) on Scout Road. Along eastern edge of Chico Meadow. 1280 Comment
  SEINET10869750  Nemophila spatulata Mary Susan Taylor 1979-3-31 Taylor 1967 Butte On property belonging to Deanne Lickey; along Ishi Trail Road, ca. 0.5 mi NE of Concow Road and Lake Concow, ca. 25 mi N of Oroville; Yellow Pine Forest; granite soils. 671 Comment
  CHSC105956  Nicotiana acuminata var. multiflora Lowell Ahart 2010-9-24 17235 Butte Near the southwest edge of the Golf Course, along trail from the end of Centennial Avenue to the footbridge across Big Chico Creek, Bidwell Park. 91 Comment
  CHSC116131  Nicotiana acuminata var. multiflora Lowell Ahart 2015-11-7 20625 Butte On the bottom and on the west side of Dark Canyon, west of the parking area at the end of old highway Alternate 40, strand of Lake Oroville, Dark Canyon, about 4 miles (air) south of Highway 70, about 8 miles (air) southeast of Paradise. 224 Comment
  CDA41165  Nicotiana quadrivalvis L. Ahart, Vernon H. Oswald 1999-8-13 8136 Butte Along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. Comment
  SBBG25316  Notholithocarpus densiflorus var. densiflorus F. C. Raney 1964-9-10 Butte 10 mi NE of Feather Falls Comment
  JEPS22684  Odontostomum hartwegii Rimo Bacigalupi with Drs. Herbert and Lucille Mason 1958-4-24 6323 Butte 1 mi. n. Chico airport (along Cohasset Rd., drainage of Mud Creek) 91 Comment
  CHSC104011  Olea europaea Lowell Ahart 2010-6-1 16750 Butte On the north side of the Guardians Trail, about 100 yards east of the end of Centennial Avenue, Upper Bidwell Park, about 1/2 mile east of Chico Canyon Road. 125 Comment
Read comments
Mar 18 2012
  CHSC87568  Orobanche fasciculata R. D. Fischer 2004-4-20 141 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located along southern end of Humboldt Trail, at edge of trail. 396 Comment
  UC600432  Orobanche fasciculata E. B. Copeland 1931-7-6 Butte Jonesville, W of Willow Creek. Comment
  POM298005  Orthocarpus erianthus A. A. Heller 1913-4-6 10717 Butte Bottoms along Big Chico Creek, east of Chico. Comment
  CHSC25254  Osmorhiza chilensis M. S. Taylor 1977-6-26 1378 Butte S side of Ponderosa Way, ca. 3 mi w of Forest Ranch. 609 Comment
  SEINET10495035  Oxalis corniculata Mary Susan Taylor 1975-4-6 Taylor 438 Butte Chico. 52 Comment
  CHSC44306  Oxalis laxa Lowell Ahart 1988-4-30 5973 Butte Along the west side of North Honcut Creek, on the Joie Osgood Ranch, about 1 and 3/4 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 60 Comment
  CHSC27249  Oxalis rubra P. Moyer 1972-3-18 151 Butte CSUC campus. 2nd and Hazel, lawn. Comment
  CHSC42642  Oxypolis occidentalis Vernon Oswald 1985-8-4 1925 Butte Slightly w of the Skyway 1.4 mi s of Inskeep. 1424 Comment
  CHSC101489  Packera eurycephala var. lewisrosei Samantha Mackey Hillaire 2008-6-12 1254 Butte Lassen National Forest, administered by Plumas National Forest. Powerline survey, on Rocky Ridge. East of intersection of Rim Road (23N06) and 23N06C. Approx. 1 airmile SSW of Pulga. Also T22N, R04E, S01. Area centered on roughly 631167.524638359, 4406717.59894074. 975 Comment
  CHSC109848  Packera eurycephala var. lewisrosei L. P. Janeway 2012-6-7 10864 Butte Northern High Sierra Nevada. Southwestern spur of Rocky Ridge, 0.6 air km south of Batchelor Point; along Road 23N06E 0.8 road km southeast of Rim Road/Ponderosa Way. 895 Comment
  JEPS24983  Packera subnuda E. B. Copeland 1930-6-27 497 Butte Jonesville 1550 Comment
  CHSC34791  Panicum acuminatum M. S. Taylor 1978-7-21 1838 Butte Big Bald Rock, ca. 2 mi e of Lake Madrone. 997 Comment
  CHSC75573  Panicum acuminatum var. acuminatum G. F. Hrusa; T. D. Wilfred 1997-5-8 13758 Butte Sierra Nevada. Slope above Little Butte Creek, N of Magalia, above Magalia Res. Immed. E of Holmwood Drive. [Lat./Long. on label is '39 51 N, 121 34 W']. 720 Comment
  CAS-BOT-BC253696  Panicum capillare Lowell Ahart 1974-11-9 s.n. Butte Edge of rice field, Peter Ahart Ranch, Honcut 45 Comment
  CHSC34203  Panicum capillare J. D. Jokerst 1981-9-26 1486 Butte Bidwell River State Park (Chico landing) ca 5.0 mi W of Chico. Comment
  CHSC4359  Panicum capillare R. L. Smith 1966-5-28 7 Butte US Plant Introduction Station 5 mi sw of Chico. Comment
  CHSC47625  Panicum capillare Lowell Ahart 1974-8-14 601 Butte Along the edge of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 1/2 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC26456  Panicum dichotomiflorum L. Ahart 1977-10-15 Butte Along edge of a swale. Peter Ahart Ranch, Honcut. Comment
  UCD38753  Panicum dichotomiflorum Beecher Crampton 1957-9-17 4627 Butte 5 miles NW of Biggs, Biggs Rice Experiment Station. Comment
  CHSC116140  Panicum dichotomiflorum subsp. dichotomiflorum Lowell Ahart 2015-10-26 20606 Butte Strand of Lake Oroville, on west side of West Branch of Feather River,about 1 mile (air) southeast of Kunckle Reservoir, about 5 miles (air) southest of Paradise. 207 Comment
  CAS-BOT-BC253852  Panicum miliaceum Lowell Ahart 1988-8-10 6168 Butte On the S edge of Pentz Road, about 1 mile E of Highway 99 60 Comment
  JEPS108539  Parentucellia viscosa L. P. Janeway 2006-5-4 8574 Butte Northern High Sierra Nevada Foothills. Abundant on the slopes above the east side of Pentz Road 0.5 km north of Durham-Pentz Road 201 Comment
  UC830990  Parvisedum pumilum A. A. Heller 1914-4-27 11329 Butte along Chico-Oroville Road on the lava plains 6 mi from Chico; Chico-Oroville Road Comment
  UCD88690  Paspalum boscianum Elizabeth Wilson 1934-8-9 s.n. Butte Biggs Rice Station. Comment
  CHSC37660  Paspalum distichum T. B. Devine 1981-9-3 764 Butte At edge of Horseshoe Lake, Upper Bidwell Park, Chico. 106 Comment
  UC1037265  Paspalum distichum E. Wilson 1934-9-3 70 Butte Biggs Rice Station Comment
  CHSC112678  Paspalum urvillei Lowell Ahart 2013-7-1 18822 Butte Seep along road gutter, on the east side of Black Bart Road, about 3/4 mile (by road) southwest from the intersection of Forbestown Road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown. 731 Comment
  CHSC43277  Paspalum urvillei Lowell Ahart 1987-10-16 5912 Butte Along Oroville Quincy Highway, along the edge of Madrone Lake. 609 Comment
  JEPS120835  Paspalum urvillei Lowell Ahart 2013-7-1 18822 Butte On the E side of Black Bart Road, about 3/4 mile by road SW from the intersection of Forbestown Road and Black Bart Road, 3.5 air miles SW of Forbestown. Comment
  NY68338  Pedicularis A. A. Heller 1914-7-23 11609 Butte Chico Meadows. 1219.2 Comment
  CHSC94245  Pedicularis attollens Lowell Ahart 2006-7-16 12979 Butte In the west edge of a wet meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 miles (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1569 Comment
  UC177581  Pedicularis attollens H. M. Hall 1914-7-22 9771 Butte near Jonesville (on Willow Creek); Willow Creek 1554 Comment
  SEINET10865264  Pedicularis densiflora Mary Susan Taylor 1980-5-27 Taylor 2675 Butte T21N R6E sc sec 30. Big Bend quad. On Big Bald Rock, ca. 3 mi E of Lake Madrone; Yellow Pine Forest, large granite dome 998 Comment
  CAS-BOT-BC71201  Pellaea andromedifolia Ira L. Wiggins 1925-3-22 1487 Butte Chico Creek Canyon about five miles above Chico Comment
  CHSC27958  Pellaea andromedifolia Sam M. Grossberg 1978-4-22 21 Butte North Table Mountain, ca. 2.5 mi nne of Cherokee Road, 6.0 mi n of Oroville. 365 Comment
  SEINET11715829  Pellaea andromedifolia S. M. Leary 1978-1 15 Butte North Table Mountain, 6.5 mi N of Oroville, ca 3 mi NNW of Cherokee Rd, upper ridge of Coal Canyon 366 Comment
  CHSC23651  Pellaea mucronata M. S. Taylor 1976-4-24 1068 Butte On Big Bald Rock, ca. 1/4 mi w of Bald Rock Rd, ca. 3 mi e of Lake Madrone, ca. 13 mi ne of Oroville. 997 Comment
  CHSC27944  Pellaea mucronata M. S. Taylor 1979-3-20 1954 Butte Ca. 1 mi n of jct of north fork Feather River and Hwy 70. Ca. 10 mi n of Oroville. 304 Comment
  SEINET11715828  Pellaea mucronata Unknown 1978-1 7 Butte ca 150 ft NW of Skyway Rd, ca 5 mi NE of bridge crossing Butte Creek between Chico & Paradise 244 Comment
  UC1605504  Pellaea mucronata var. mucronata T. A. Ranker and P. G. Trapp 1994-6-17 1623 Butte s of Paradise (Pence Rd, along pipeline below Kunkel Reservoir); Cherokee Quadrangle 7.5 min topo. map 395 Comment
  CHSC93445  Penstemon azureus var. azureus Lowell Ahart 2006-5-10 12618 Butte Road cut bank, on the north side of the poor dirt road, Bardees Bar Road, about 100 yards north of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 1/2 miles (air) southwest of Pulga. 354 Comment
  SEINET3160230  Penstemon breviflorus L. S. Rose 1940-5-30 40425 Butte Feather River Canyon, 25 mi NE of Oroville 610 Comment
  CHSC8583  Penstemon heterophyllus Paul E. Kaehler 1968-4-21 Butte Cohasset Hiway, 3.3 miles north of Chico Airport, left side of road. Comment
  UCD124230  Penstemon heterophyllus Tracy I. Storer 1961-6-6 s.n. Butte State Highway 32, 13 miles east of Chico. 365 Comment
  CHSC31448  Penstemon laetus var. leptosepalus L. Ahart 1980-9-10 2641 Butte Along the edge of the rd, ca. 7 mi e of Millsap Bar, ca. 32 mi ne of Oroville. 1200 Comment
  CHSC62789  Penstemon laetus var. leptosepalus L. P. Janeway 1993-6-3 4369 Butte Plumas National Forest. South end of Swayne Hill, along the road to Big Bar Mtn (23N28). 731 Comment
  CHSC86545  Penstemon laetus var. leptosepalus L. P. Janeway; John Hunt 2003-6-13 7826 Butte Northern High Sierra Nevada. North side of South Fork Feather River arm of Lake Oroville, 140 m northwest of the north end of Enterprise Bridge. 287 Comment
  UC1063502  Penstemon laetus var. leptosepalus P. L. Johannsen 1936-7-16 917 Butte 1 3/4 mi ese Butte Mdws; Lassen National Forest, Paynes Creek Quad. Comment
  POM43769  Penstemon laetus var. leptosepalus C. C. Bruce 1898-06 2415 Butte Forest Ranch. Comment
  SD122577  Penstemon laetus var. leptosepalus Lowell Ahart 1984-6-8 5679 Butte Along the dirt road near the water tower, ca. 1 mi E of Ponderosa Dam, ca. 2 mi N of Forbestown 474 Comment
  UC103112  Penstemon laetus var. leptosepalus D. Cleveland 1882-7-14 141 Butte Sutton House Comment
  JEPS94299  Penstemon neotericus Lowell Ahart 1997-8-1 7771 Butte about 8 air mi ne of Stirling City (about 1/4 mi e of Table Mountain, on the w side of Little Kimshew Creek, Snow Meadow); Snow Meadow, Little Kimshew Creek 1524 Comment
  CAS-BOT-BC245682  Penstemon newberryi var. newberryi E. B. Copeland 1930-7-6 458 Butte Above Jonesville 1900 Comment
  CAS-BOT-BC245683  Penstemon newberryi var. newberryi E. B. Copeland 1930-7-6 458 Butte Above Jonesville 1900 Comment
  CAS-BOT-BC245684  Penstemon newberryi var. newberryi Lowell Ahart 1980-5-19 2312 Butte Near bridge, South Fork of Feather River, Sierra Nevada 800 Comment
  NY627343  Penstemon newberryi var. newberryi A. A. Heller 1915-6-10 11958 Butte Little Summit in the Sierra Nevada 1371.6 Comment
  RSA443117  Penstemon personatus L. Ahart, P. Ahart 1984-7-19 4761 Butte About 0.5 mile east of Bald Mountain, about 5 miles NE of Stirling City. 1900 Comment
  LA209562  Penstemon procerus E. B. Copeland; 1931-6-20 Butte Jonesville, Butte Creek 1500.0 Comment
  CAS-BOT-BC239445  Penstemon rydbergii var. oreocharis E. B. Copeland 1931-6-20 s.n. Butte Jonesville. On gravel bars by Butte Creek 1500 Comment
  CAS-BOT-BC239446  Penstemon rydbergii var. oreocharis E. B. Copeland 1931-6-20 s.n. Butte Jonesville. On gravel bars by Butte Creek 1500 Comment
  CHSC32623  Pentagramma triangularis M. S. Taylor 1981-3-31 3464 Butte S side of Concow Rd, ca. 1/2 mi s of its jct with Ponderosa Way, ca. 20 air mi n of Oroville. 853 Comment
  CHSC39800  Pentagramma triangularis Maxey-Jones 1928-2-27 Butte Iron Canyon. Comment
  CHSC48080  Pentagramma triangularis Sharol Lindenstein 1989-4-11 44 Butte Upper Bidwell Park, 0.1 mi nw of Upper Park Rd., 2.7 mi e of jct of Upper Park Rd. and Wildwood Ave., e side of Chico. 79 Comment
  UCD137761  Pentagramma triangularis M. S. Taylor 1980-4-1 2425 Butte south side of Butte Creek, ca. 0.25 mile down stream from Honey Run Covered Bridge, ca. 6 miles east of Chico. 182 Comment
  CHSC32689  Pentagramma triangularis subsp. semipallida M. S. Taylor; L. Hanson 1981-3-16 3408 Butte E side of Truex Rd, ca. 1/2 mi s of its jct with Hwy 70, ca. 7 mi n of Oroville. 304 Comment
  JEPS104146  Pentagramma triangularis subsp. triangularis Lowell Ahart 2003-4-15 10088 Butte Northeast of the tall Digger Pine on the south edge of Beatson Hollow, ca 3/4 mi nw of the iron gate and fence, nw of Cherokee Rd, North Table Mountain, ca 7 mi (air) n of Oroville. 299 Comment
  CAS-BOT-BC77087  Pentagramma triangularis subsp. triangularis Rod O'Sullivan 1977-2-12 4 Butte Little Chico Creek Canyon, 9.2 mi. NE of Chico on Hwy 32 and 1 mile E of Tenmile House, Paradise Quadrangle 268 Comment
  SFV10664  Pentagramma triangularis subsp. triangularis M. L. Vincent 1965-4-16 624 Butte Pentz Road, 0.5 miles east of Pentz school. Comment
  CHSC40438  Perideridia bacigalupii Lowell Ahart 1985-8-15 5163 Butte 50 yards south of the road to the Forbestown Res., about 2 1/2 miles north-east of Forbestown. 883 Comment
  CHSC42645  Perideridia bacigalupii Vernon Oswald 1985-9-5 1938 Butte Black Bart Rd. 2.1 mi se of its western junction with Forbestown Rd. 662 Comment
  UCD127897  Perideridia kelloggii W. S. Wilkinson 1921-7-16 s.n. Butte Chico. Comment
  CHSC91467  Perideridia lemmonii Lowell Ahart 2005-7-12 12143 Butte About 40 yards south of Encina Grade Road (Bloomer Hill Road) (Forest Road 21N39), about 40 yards east of Forest Road 21N40, about 3/4 mile (air) west of Bloomer Hill, about 6 miles west of Oroville Quincy Highway. 822 Comment
  CHSC38742  Perideridia oregana Vernon Oswald 1983-6-9 657 Butte Upper Bidwell Park, Chico, beside Yahi Trail w of Brown's Hole. 182 Comment
  CHSC31065  Perideridia parishii subsp. latifolia M. S. Taylor 1978-7-19 1788 Butte On n end of Snag Lake between creek and Humbug Rd, ca. 3 mi s of jct of Humbug Rd and Scotts John Rd. 1920 Comment
  CHSC34192  Persicaria hydropiper L. Ahart 1981-9-19 3177 Butte Along edge of the road just a few feet n of the Arch Rock Tunnel, on Hwy 70, ca. 10 mi s of Storrie. 550 Comment
  CHSC76288  Persicaria hydropiper Lowell Ahart 1999-9-21 8271 Butte Large disturbed area along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CHSC42948  Persicaria lapathifolia Lowell Ahart 1987-7-3 5766 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of the Jarbo Gap. 271 Comment
  CHSC51273  Persicaria lapathifolia Lowell Ahart 1990-10-3 6613 Butte On the north side of the East Fork of Canyon Creek, below the high water line of Lake Oroville, about 1/8 mile north-east of the Canyon Creek Bridge across Lake Oroville. 243 Comment
  CHSC110398  Persicaria maculosa Lowell Ahart 2012-9-28 18462 Butte Just east of the east end of Sycamore Pool in Big Chico Creek, Lower Bidwell Park, Chico. 62 Comment
  CAS-BOT-BC419179  Persicaria maculosa A. A. Heller 1916-9-30 12663 Butte Hills 8 miles north of Oroville Comment
  CHSC42055  Persicaria pensylvanica Lowell Ahart 1986-11-14 5457 Butte On the bottom of a pond, about 1/10 mile south of the clay burrow for Oroville Dam, 1/4 mile east of Larkin road, about 6 miles south-west of Oroville. 36 Comment
  CHSC101313  Petrorhagia dubia Lowell Ahart 2009-4-22 15573 Butte West side of Guardians Trail, south side of the drainage just north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  RSA725056  Petrorhagia dubia L. P. Janeway 2006-4-30 8563 Butte Cascade range Foothills. East edge of city of Chico; NW side of Humbolt Road 2.4 km northeast of Bruce Road. 149 Comment
  SEINET207369  Petrorhagia dubia Rimo Bacigalupi, G. T. Robbins; F. Chisaki 1956-4-19 5615 Butte Along road from Oroville to Bangor, 5.3miles North of Bangor. 183 Comment
  SEINET10932244  Petrorhagia velutina Mary Susan Taylor 1982-5-2 Taylor 4382 Butte T21N R4E sw/se sec 16. Cherokee quad. Along Truex Rd in Foothill Woodland, 0.5 mi w of its jct with Hwy 70, ca. 5 mi n of Oroville. 1200 ft. 366 Comment
  CHSC31964  Phacelia distans J. D. Jokerst 1979-4-20 1213 Butte Top of North Table Mt, W edge of mountain. 396 Comment
  CHSC118390  Phacelia egena Tim Kask 2015-2-18 225 Butte Antelope Creek, upstream from Fischer CG. 10T 0595755/4455054 Comment
  SEINET11263935  Phacelia egena Lowell Ahart 1992-9-20 6922 Butte Lake Oroville, about 1/8 miles west of the Enterprise Boat Launch Ramp, about 3/4 miles SW of Rocky Point.; 0 244 Comment
  UC1046983  Phacelia imbricata Butte just below Los Plumas road junction with the Feather River Highway, about 14 miles northeast of Oroville Comment
  CHSC48474  Phacelia purpusii Vernon Oswald 1983-6-22 733 Butte Beside Calif. Hwy. 32 0.2 mi s-w of its jct. with Humboldt Rd. to Butte Meadows. 1158 Comment
  RSA152187  Phacelia purpusii Lincoln Constance, E. Moleseed, John Weiler 1960-6-12 3677 Butte 3 miles above junction of Highway 32 and Butte Meadows Road, 33 miles northeast of Chico. 1220 Comment
  CAS-BOT-BC265845  Phalaris brachystachys A. A. Heller 1902-5-3 5446 Butte Near Nelson Comment
  CHSC78113  Phalaris brachystachys Shelly Pirtle 1997-4-9 32 Butte +/- 20 miles south of Chico off of Biggs-Afton Road: Little Dry Creek. Fields. Comment
  CHSC84009  Phalaris brachystachys Lowell Ahart 2003-6-16 10286 Butte On the east side of Wickman Road, about 100 yards south of Richvale West Road, about 1 3/4 miles west of Richvale. 29 Comment
  UCD88990  Phalaris lemmonii H. A. Hannesson; R. N. Raynor 1941-5-9 s.n. Butte 10 miles S of Oroville on Marysville Road. Comment
  SEINET3450770  Phalaris minor Unknown 2003-6-16 10286 Butte Richvale, Richvale, about 1.75 miles west, east side of Wickman Road, about 110 yards south of Richvale West Road 20 Comment
  SEINET10716717  Phalaris paradoxa A. Arthur Heller 1919-8-13 Heller 13352 Butte Rice fields between Nelson and Richvale in moist adobe Comment
  CDA25504  Philadelphus lewisii subsp. californicus J. R. Keck Jr. 1978-5-23 PDR# 330032 Butte Highway 70, Jarboe Gap. Near Poe Power House. 0 Comment
  CHSC6628  Phlox M. MacArthur 1968-6-13 323 Butte SE yard of building V, Chico State College campus. 60 Comment
  SD3827  Phlox caespitosa E. B. Copeland 1931-6-19 Butte Jonesville, on and below crags west of The Summit 2100 Comment
  CHSC93966  Phlox diffusa R. D. Fischer 2004-6-20 748 Butte Sierra Nevada Mountains, north-east corner of Butte County and ca. 2 miles west of Butte Meadows on Humboldt Road. Roadside. 1417 Comment
  SEINET7073610  Phlox speciosa A. G. Vestal 1955-5-21 s.n. Butte About 13.8 miles east of Oroville on the Forbestown Road. UTM Zone 10, 643814mE, 4373382mN. Coordinate datum: NAD27. Comment
  SD1138  Phoradendron juniperinum E. B. Copeland 1931-7-28 627 Butte Jonesville 1500 Comment
  CAS-BOT-BC141119  Phoradendron serotinum subsp. macrophyllum Lowell Ahart 1983-3-27 991 Butte Peter Ahart Ranch, about 1 1/2 miles N and 1 mile E of Honcut 50 Comment
  CHSC102794  Phoradendron villosum Lowell Ahart 2009-6-30 15959 Butte West of the Guardian Rock Trail, about 100 yards north of Pine Trail, about 3/8 mile (air) southwest of the intersection of Ten Mile House Road and Highway 32, Upper Bidwell Park, about 10 miles northeast of Chico. 398 Comment
  CHSC58961  Phyla nodiflora var. rosea Lowell Ahart 1992-7-23 6832 Butte On the bottom of Oregon Gulch, north of the Thermalito Diversion Pool, Lake Oroville Recreation Area, about 1 1/4 miles north-west of Oroville Dam. 91 Comment
  JEPS127067  Physalis lancifolia Lowell Ahart 2016-5-30 20891 Butte Peter Ahart Ranch, about 2 1/2 miles north and 1/2 mile east of Honcut, about 12 miles (air) south of Oroville. Comment
  CHSC87780  Physocarpus capitatus Paul Maslin 2004-5-6 32 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). On Big Chico Creek flood plain. UTM: 10609800E 4410330N. 243 Comment
  SEINET10970314  Physocarpus capitatus Mary Susan Taylor 1981-5-17 Taylor 3805 Butte T22N R3E ne sec 10, Paradise SE quad. Along creek, Phillips property, 685 Wagstaff, Paradise. Riparian Woodland in Yellow Pine Forest; 1900 ft. 579 Comment
  CAS-BOT-BC76941  Pilularia americana Lowell Ahart 1973-4-15 s.n. Butte Peter Ahart Ranch, Honcut 45 Comment
  CHSC118034  Pilularia americana Daphne K. Christopher; Hannah Stevens, Lowell Ahart 2003-4-21 230 Butte Off Hwy 99. Ahart Family Ranch along boundary on access road and edge of field 41 Comment
  NY61576  Pinus jeffreyi E. B. Copeland 1929-7-19 333 Butte This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  POM220654  Pinus monticola H. F. Copeland 1928-8-29 332 Butte Near Jonesville. Summit of Humboldt Road. 2134 Comment
  CHSC31785  Piperia michaelii L. Ahart 1974-5-5 450 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CDA13231  Piperia transversa G. F. Hrusa, T. D. Wilfred 1996-7-8 13078 Butte Plumas National Forest; Old Railroad Grade Rd. immed. above Paradise Lake dam, approx. 3 m. N of Magalia. Comment
  CHSC65869  Piperia transversa L. P. Janeway 1995-7-16 4862 Butte Along Jordan Hill Road 0.3 mi south of the turn to Sawmill Peak Lookout; about 2 mi east of Magalia. 929 Comment
  CHSC81424  Piperia transversa L. P. Janeway 1996-5-27 4981 Butte Northern Sierra Nevada Foothills. Next to the road into Vinton Gulch; 100 ft east of Cherokee Road. 307 Comment
  CAS-BOT-BC254405  Piptatherum miliaceum Lowell Ahart; Jokerst 1985-5-10 4965 Butte About 0.25 mile W of a small stream, 0.5 mile S of Box Hall Flat, about 1 mile E of Potter Ravine, about 2.75 miles NE of Oroville Dam 350 Comment
  CAS-BOT-BC254406  Piptatherum miliaceum Lowell Ahart 1988-5-30 6016 Butte Near the N Fork of the Feather River, near the Poe Power House, about 2 miles SE of Jarbo Gap 274 Comment
  CHSC4403  Piptatherum miliaceum R. L. Smith 1966-5-5 3 Butte Paradise, 5 mi sw of post office. Comment
  CHSC27273  Pistacia chinensis P. Moyer 1971-10-1 19 Butte CSUC Campus. S side of Bidwell Mansion Along So-wil-len-no Ave. 60 Comment
  CHSC102375  Pistacia vera L. P. Janeway 2009-10-13 9950 Butte Upper Bidwell Park, Chico; south side of Big Chico Creek, along South Rim Trail/Annie Bidwell Trail 155 m east-northeast of its start at the east end of Centennial Ave. and Chico Canyon Road. 87 Comment
  CHSC26445  Pittosporum tobira Pam Moyer 1971-10-1 25 Butte CSUC Campus. Bidwell Mansion front lawn. Comment
  SEINET10470241  Pityrogramma pallida Lowell Ahart 1984-2-3 Ahart 4494 Butte Ca. 1/4 mile south of Cox Lane, east of the pole line tower; ca. 3.5 miles NE of Honcut. Foothill Woodland; 100 m. 100 Comment
  SEINET10899935  Pityrogramma triangularis var. semipallida Mary Susan Taylor 1979-3-20 Taylor 1958 Butte T21N R4E nw1/4 sec. 21. Cherokee Quad. Along old road on N side of Hwy 70 following West Branch of the Feather River, which begins at S side of bridge over N fork of Feather River, ca. 10 mi N of Oroville; limestone outcrops within Foothill Woodland. 305 Comment
  CHSC103976  Plagiobothrys austiniae Lowell Ahart 2010-5-7 16609 Butte Area of erosion control, disk golf area, on a ridge about 200 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 369 Comment
  CHSC47996  Plagiobothrys bracteatus Vernon Oswald 1984-5-13 1185 Butte Calif. Hwy 32 at the second bridge w of Nord-Hamilton-Cana Hwy. In a slough. 39 Comment
  CHSC13487  Plagiobothrys canescens S. Poe 1974-4-22 15 Butte Adjacent to Fern Bank area, upper Bidwell Park. Comment
  UC78035  Plagiobothrys canescens Mrs. R. M. Austin Mar 1896 Butte Comment
  UCD80148  Plagiobothrys fulvus var. campestris CNPS SN Foothill Team 2005-4-14 SNFN 0033 a Butte Private Rock Ranch. Plot is located in the horse pasture, near the NE corner of the pasture located west of the barn and house, ~10 m from corner of pasture fence. 105 Comment
  JEPS108838  Plagiobothrys glyptocarpus var. glyptocarpus Lowell Ahart 2006-5-3 12566 Butte Banks of a small stream, near basalt cliffs on the south side of the stream, about 100 yards south of the fence, about 1 mile northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 378 Comment
  CHSC82259  Plagiobothrys greenei Lowell Ahart 2002-4-24 9526 Butte Vernal pools and swales, in a field, on the east side of Lone Tree Road, about 1 1/8 miles north of Cox Lane, about 3 miles (air) southwest of Palermo, about 7 miles (air) south of Oroville. 35 Comment
  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
  CHSC46553  Plagiobothrys hispidulus V. Oswald; L. Ahart 1989-7-12 3852 Butte Meadow near the headwaters of Big Kimshew Creek, ca. 2 mi (air) sw of Lotts Lake, ca. 3 mi (air) se of Philbrook Reservoir. 1901 Comment
  CHSC61634  Plagiobothrys hispidulus Lowell Ahart 1993-9-13 7238 Butte On the bottom of a small wash on the north side of Bolt Creek, about 1 mile south-east of Butte Meadows. 1325 Comment
  UC1609306  Plagiobothrys hispidulus Lowell Ahart 1993-9-13 7238 Butte small wash on n side Bolt Creek (about 1 mi se of Butte Meadows) 1325 Comment
  UC480658  Plagiobothrys hispidulus H. F. Copeland 1930-7-28 Butte Willow Creek Jonesville, Willow Creek 1828 Comment
  CHSC46251  Plagiobothrys leptocladus Vernon Oswald 1989-4-20 3749 Butte Butte Sink Wildlife Area (w portion of Schohr Ranch), on the ranch road ca. 0.3 mi n of the main gate at Gridley-Colusa Hwy. 18 Comment
  CHSC167  Plagiobothrys nothofulvus Edna Canfield 1904-4-9 Butte Hooker Oak field 76 Comment
  CHSC46761  Plagiobothrys nothofulvus Lowell Ahart 1980-4-7 2072 Butte On the north side of Swedes Flat Road, about 1 mile east of the Bangor Oroville Highway, north of Bangor. 304 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
  CHSC46767  Plagiobothrys shastensis Lowell Ahart 1979-5-12 1872 Butte In pasture fields, Peter Ahart Ranch, about 1 1/2 miles north and 1 1/2 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CDA40661  Plagiobothrys stipitatus T. C. Fuller 1958-4-15 4794 Butte Highway 99E, 10 miles northwest of Chico. 0 Comment
  UC78200  Plagiobothrys stipitatus R. M. Austin Apr 1896 626 Butte Adobe Swales Butte Creek Comment
  CHSC87205  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2004-4-10 10731 Butte Road gutter on the north side of Highway 149, about 1 mile northwest of the intersection of Highway 149 and Highway 70, about 6 miles (air) northwest of Oroville. 69 Comment
  CHSC99476  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2008-6-13 14824 Butte Depression in a small meadow, bottom of an old gold mined area, about 350 yards southwest of the cemetery, about 50 yards north of Oregon gulch, about 10 miles (air) northeast of Oroville. 305 Comment
  JEPS104318  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2003-5-28 10229 Butte Center of a vernal pool, ca 100 feet w of Hendricks ditch, ca 1 3/4 mi nw of the iron gate and fence, nw of Cherokee Rd, North Table Mountain, ca 7 mi (air) n of Oroville. 271 Comment
  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
  RSA0036030  Plagiobothrys stipitatus var. micranthus Lowell A. Ahart 2012-5-2 17960 Butte About 20 yards west of the Horseshoe Lake Dam, Upper Bidwell Park, about 1 1/4 miles east of Chico. 97 Comment
  SD116549  Plagiobothrys stipitatus var. micranthus B. Ertter, Jeff Strachan 1980-5-5 3264 Butte Peter Ahart Ranch ca 1.5 mi northeast of Honcut between Oroville and Marysville, pasture of annual grasses and herbs north of house. 29 Comment
  SEINET7072732  Plagiobothrys stipitatus var. micranthus A. G. Vestal 1963-5-9 s.n. Butte North of Oroville on Alternate Route 40 (Route 70). UTM Zone 10, 621508mE, 4387718mN. Coordinate datum: NAD 27.) Comment
  CHSC46081  Planodes virginica Lowell Ahart 1989-3-20 6192 Butte In a prune orchard, west of the intersection of Highway 70 and Lower Honcut Road, about 3 miles west of Honcut, about 13 miles south of Oroville. 30 Comment
  CAS-BOT-BC60824  Planodes virginica Lowell Ahart 1985-3-14 4846 Butte Peter Aharts Ranch, about 1.5 mile north and 1 mile east of Honcut, about 12 miles south of Oroville. 50 Comment
  CHSC31782  Plantago bigelovii L. Ahart 1974-3-24 336 Butte Peter Ahart Ranch, Honcut. 45 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
  JEPS117270  Plantago coronopus Lowell Ahart 2010-5-14 16638 Butte Along the east side of the poor dirt road, parking area, about 100 yards north of the entrance to the Disc Golf Area, west side of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 394 Comment
  CHSC70853  Plantago elongata Lowell Ahart 1988-4-8 7949 Butte West of the dirt road, 1/10 mile north of the Thermalito Diversion Dam, east of the Thermalito Diversion Pool, 1/4 mile northeast of Oroville. 67 Comment
  JEPS103364  Plantago elongata Lowell Ahart 2002-3-16 9417 Butte On the bottom and sides of a depression, on the N side of a poor dirt road, ca 50 yards N of Highway 32, ca 1/4 mile E of the intersection of Bruce Road and Highway 32, E of Chico. 73 Comment
  CHSC29120  Plantago erecta M. S. Taylor 1980-4-6 2450 Butte On s side of Melody Lane, ca. 1 mi e of its jct with Honcut-Palermo Rd, ca. 5 mi s of Palermo. 38 Comment
  CHSC4179  Plantago erecta M. Lee 1967-4-10 15 Butte In field, W. side of Cherokee Rd., ca. 8 1/2 mi. N. of Oroville. 373 Comment
  CHSC47464  Plantago erecta Lowell Ahart 1978-5-1 1697 Butte Growing in a farmed field, Peter Ahart Ranch, about 2 1/2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC52101  Plantago erecta William Nielson 1984-3-28 16 Butte 5 m s of Skyway, ca. 2 km w of jct with Hwy 99. 95 Comment
  UCSC008326  Plantago erecta Lowell Ahart 2012-4-9 17838 Butte Northwest of South Rim Trail, south part of Upper Bidwell Park, about 2-1/4 (air) miles northeast of Chico. 142 Comment
  SEINET10499851  Plantago erecta Mary Susan Taylor 1979-3-31 Taylor 1974 Butte Junction of Pentz-Magalia Hwy and Pentz Road, ca. 1/4 mi W of Hwy 70, ca. 22 mi N of Oroville; Valley Grassland. 198 Comment
  CHSC61323  Plantago lanceolata Lowell Ahart 1993-7-23 7095 Butte On a large gravel bar on the west side of Fall River, about 100 yards west of the bridge across Fall River, about 6 (air) miles north-east of Feather Falls. 1036 Comment
  JEPS114771  Plantago major Lowell Ahart 2008-7-23 15145 Butte On the north edge of the South Fork of the Feather River, about 10 yards east of where Sucker Creek enters the South Fork of the Feather River, below the high water line of Lake Oroville, about 1/4 mile west of the Ponderosa Dam 258 Comment
  JEPS124275  Plantago major Lowell Ahart 2015-11-18 20663 Butte About 1 1/2 miles southeast of intersection of Palm Avenue and Larkin Road, about 5 miles (air) northeast of Gridley. Comment
  CHSC5991  Plantago major var. scopulorum M. MacArthur 1968-6-12 159 Butte In lawn on SW side of Life Science bld., Chico State College campus. 60 Comment
  JEPS122066  Platanthera dilatata var. leucostachys Lowell Ahart 2014-7-13 19644 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir Comment
  SEINET10470061  Platanthera dilatata var. leucostachys Mary Susan Taylor 1978-1 Butte Comment
  JEPS87172  Platanthera leucostachys Lowell Ahart 1992-6-26 6781 Butte about 1/2 mi nw Merrimac (e side Rogers Cow Camp); e side Rogers Cow Camp 1219 Comment
  JEPS94565  Platanthera leucostachys Lowell Ahart 1997-7-11 7746 Butte se Cold Creek (along small stream from springs, n of dirt road, about 2 air mi sw of Bald Mt., about 9 mi by road e (or about 2 air mi ne) of Stirling City) 1219 Comment
  UC1609272  Platanthera leucostachys Lowell Ahart 1993-6-26 7006 Butte about 0.25 mi w Lost Creek Reservoir (on the n side of the dirt road) 1036 Comment
  UC600640  Platanthera limosa E. B. Copeland July 1929 Butte Jonesville Comment
  CHSC20549  Platanus racemosa M. S. Taylor 1975-7-4 829 Butte Along Big Chico Creek, Five Mile, Upper Bidwell Park, Chico. 76 Comment
  SBBG127997  Platanus racemosa L. Ahart 2009-8-23 16296 Butte W side of Ten Mile House Rd, Upper Bidwell Park, ca. 0.75 mi W of Hwy 32, ca. 10 mi NE of Chico 209 Comment
  CAS-BOT-BC91590  Platystemon californicus A. A. Heller 1928-4-21 14529 Butte Near Sandy Gulch on the road to golf links near Chico. Comment
  CHSC76953  Platystemon californicus Ida Ryan 1893-4-1 Butte Rancho Chico. Comment
  UC176196  Platystemon californicus A. A. Heller 1913-4-6 10718 Butte along Big Chico Creek (e of Chico) Comment
  POM97353  Platystemon californicus var. californicus C. C. Bruce 1897-04 1877 Butte Butte Creek. Comment
  SEINET10938875  Plectritis ciliosa Mary Susan Taylor 1980-4-16 Taylor 2488 Butte T21N R4E s sec 17 Cherokee quad. Lake Oroville State Recreation Area, up to 0.5 mi SE of Parish Camp, just S of Lime Saddle Memorial Park, ca. 5 mi S of Paradise; Foothill Woodland. 305 Comment
  CHSC11088  Poa annua Lowell Ahart 1969-3-27 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC51042  Poa annua Lowell Ahart 1990-8-15 6584 Butte Along McCabe Creek, below the high water line of Lake Oroville, about 1/2 mile south-west of the Enterprise Bridge across Lake Oroville. 228 Comment
  CHSC59054  Poa annua Lowell Ahart 1992-7-21 6823 Butte Along Coon Hollow Creek, east of the logging road, about 2 1/2 miles (air) north-east of Philbrook Reservoir. 1706 Comment
  CAS-BOT-BC255687  Poa bolanderi Lowell Ahart 1985-7-16 5147 Butte Near Willow Creek, about 4 miles E of Cherry Hill, about 7 miles NE of Butte Meadows 1828 Comment
  CDA14074  Poa compressa G. F. Hrusa, T. D. Wilfred 1997-7-3 13957 Butte Sierra Nevada; NE side of upper end of Paradise Lake. Where last tributaries from E enter. Old growth Douglas-fir/mixed hardwoods. Rhizomatous perennial in moist, formerly disturbed areas at lake margin. Comment
  CHSC64262  Poa pratensis S. C. Morey 1983-8-1 652 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  CHSC42234  Pogogyne zizyphoroides Steve Holloway 1986-4-12 12 Butte 100 m w of Cohasset Hwy. 2.5 km n of Chico Municipal Airport. 102 Comment
  JEPS117265  Pogogyne zizyphoroides Lowell Ahart 2010-5-14 16646 Butte On the west side of the old Humboldt Road, Disc Golf Area, about 150 yards west of the entrance to the Disc Golf Area, about 40 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 395 Comment
  RSA0022186  Pogogyne zizyphoroides A. A. Heller 1938-4-22 15043 Butte On U. S. Highway 99E, near the Cana road. Comment
  SEINET10498988  Pogogyne zizyphoroides Mary Susan Taylor 1978-5-7 Taylor 1613 Butte In and around Richvale vernal pool area, ca. 20 mi S of Chico, on W side of Hwy 99; Valley Grassland. 30 Comment
  SEINET10498989  Pogogyne zizyphoroides Lowell Ahart 1983-5-12 Ahart 3980 Butte Along the power line, ca. 0.5 mi ne of jct of Hwy 99 and Pentz Rd, ca. 16 mi s of Chico. Valley Grassland; 65 m. 65 Comment
  UC598550  Pogogyne zizyphoroides John Bright 1936-5-6 13043 Butte along highway near Chico 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
  CHSC45569  Polycarpon tetraphyllum John T. Howell 1974-5-3 50334 Butte Sidewalk east of Wells Fargo Bank, at the Shell Gas Station, in Gridley. 30 Comment
  CHSC46498  Polygala cornuta Lowell Ahart 1989-5-31 6334 Butte On the west side of a small stream, north of the end of Truex Road, near Lake Oroville, about 1/4 mile north-west of the West Branch Bridge across Lake Oroville. 304 Comment
  SEINET1004840  Polygala cornuta var. cornuta Lewis S. Rose 1935-1 55102 Butte 6 mi. SE of Paradise on Pentz Road. 427 Comment
  CHSC42052  Polygonum aviculare Lowell Ahart 1986-11-9 5453 Butte On the bottom of a pond, about 1/10 mile south of the clay burrow for Oroville Dam, 1/4 mile east of Larkin Road, about 6 miles south-west of Oroville. 36 Comment
  UCD99986  Polygonum aviculare subsp. depressum H. F. Copeland 1923-6-4 s.n. Butte Nelson. Comment
  CAS-BOT-BC109137  Polygonum bidwelliae C. R. Quick 1951-6-5 51 -87 Butte 5 miles northeast of Chico, Deer Creek road. Comment
  POM196100  Polygonum bistortoides E. B. Copeland 1929-7-20 s.n. Butte Jonesville. 1550 Comment
  CAS-BOT-BC414368  Polygonum californicum Lowell Ahart 1981-11-6 3216 Butte Peter Ahart Ranch, Honcut 50 Comment
  CHSC61003  Polygonum douglasii subsp. douglasii Lowell Ahart 1993-6-20 6984 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile northwest of the Lost Creek Reservoir Dam. 1158 Comment
  UC1609060  Polygonum douglasii subsp. douglasii Lowell Ahart 1993-6-20 6984 Butte about 1 air mi nw Lost Creek Reservoir Dam; Mooreville Ridge, Jackass Flat 1158 Comment
  CHSC25324  Polygonum douglasii subsp. spergulariiforme M. Hayes; Taylor, Schlising 1977-8-17 41 Butte On gravelly flat along road to Butte Meadows, 1.2 mi s of Bull Hill Road. 1219 Comment
  UC1509657  Polygonum hydropiper L. Ahart 1982-10-6 3846 Butte ca 3 mi ne Honcut; Peter Ahart Ranch, North Honcut Creek 50 Comment
  RSA724853  Polygonum lapathifolium L. Ahart 2006-9-28 13371 Butte E side of the N Fork of the Feather River, on the W side of Hwy 70, 50 yards SW of the Shady Rest Area S of the Arch Rock Tunnel. Comment
  RSA795242  Polygonum lapathifolium L. Ahart 2011-8-17 17628 Butte About 10 yards north of the trail, north of the crossing and on the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 0.75 air miles west of Highway 32, about 10 miles northeast of Chico. 204 Comment
  RSA4447  Polygonum minimum E. B. Copeland 1931-7-18 631 Butte Jonesville, by Butte Creek 1500 Comment
  SEINET10970715  Polygonum punctatum Lowell Ahart 1991-9-14 Ahart 6714 Butte On the sides of a large reservoir, Joie Osgood Ranch, about 2 miles east of Honcut. Valley Grassland. T17N R4E S/C/S14. 46 Comment
  UC122768  Polypodium Mrs. R. M. Austin Mar, 1896 237 Butte Little Chico Canyon Comment
  SEINET10470877  Polypodium californicum Lowell Ahart 1983-3-28 Ahart 3911 Butte E bank of Woodleaf Creek above the rd, ca. 3/8 mi sw of Forbestown Reserv., ca. 4 mi ne of Forbestown. Yellow Pine Forest. 450 Comment
  CHSC103672  Polypodium calirhiza Lowell Ahart 2010-4-30 16592 Butte Below rim and above cliffs, north side of disk golf area, on a ridge about 250 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 360 Comment
  JEPS107675 Image available Polypodium calirhiza Lowell Ahart, P. Maslin, S. Green, J. Guardino, J. Dittes 2005-2-6 11553 Butte Big Chico Creek Ecological Reserve. At the base of Lovejoy Basalt cliffs, about 300 yards west of Highway 32, about 8 miles northeast of Chico 406 Comment
  SEINET10530417  Polypodium glycyrrhiza Mary Susan Taylor 1981-3-24 Taylor 3433 Butte Two mile stretch along both sides of Feather River Hwy (70), just ne of Pulga to Cresta Powerhouse, ca. 20 mi ne of Oroville; granite gravels & soil; ca. 1700 ft. T23N R5E Pulga quad. 518 Comment
  CAS-BOT-BC232965  Polypogon australis P. B. Kennedy 1915-5-15 s.n. Butte Biggs Comment
  CAS-BOT-BC232966  Polypogon australis A. A. Heller 1914-5-19 11419 Butte Hills 8 miles N of Oroville Comment
  JEPS94693  Polypogon australis Lowell Ahart 1998-6-9 7988 Butte about 7 air mi n of Oroville (sw of the ione oak tree, nw of the cow chute along Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 403 Comment
  UC204879  Polypogon australis A. A. Heller 1914-5-19 11419 Butte 8 mi n Oroville Comment
  UCD90526  Polypogon australis L. E. Hazeltine 1916-6-10 s.n. Butte Chico. Comment
  CAS-BOT-BC233207  Polypogon maritimus A. A. Heller 1914-5-13 11398 Butte Near Butte Creek between Durham and Nelson Comment
  CAS-BOT-BC233209  Polypogon maritimus Lowell Ahart 1982-7-18 3681 Butte Along the sides and on the bottom of a small wash, Peter Ahart Ranch, ca. 1.5 miles N and 1.5 miles E of Honcut 50 Comment
  CAS-BOT-BC232571  Polypogon monspeliensis Lowell Ahart 1979-6-2 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  CDA2346  Polypogon monspeliensis L. Ahart 2002-5-7 9635 Butte East side of Cherokee Road, North Table Mountain, about 4 miles (air) north of Oroville. At the beginning of the southeast branch of Schirmer Ravine, about 50 yards east of the pond. Comment
  CHSC29716  Polypogon monspeliensis J. D. Jokerst; T. B. Devine, D. Greenstein 1979-5-18 433 Butte Top of North Table Mt ca 200 met nw of jct of east edge of Mt and Cherokee Rd. Comment
  CHSC4297  Polypogon monspeliensis R. Jaegel 1966-5-15 7 Butte In upper Bidwell Park at the drainage of the Golf Coarse Lake. Comment
  UCD136477  Polystichum californicum G. F. Hrusa 1997-5-29 13794 Butte Sierra Nevada, Plumas National Forest. Immediately above Sucker Creek, 1.5 miles SSE of Feather Falls. 720 Comment
  CHSC28416  Polystichum imbricans M. S. Taylor 1979-10-5 2232 Butte Se side of Paradise Lake, ca. 1/2 mi n of Coutolenc Rd., ca. 5 mi n of Magalia. 731 Comment
  SEINET10530117  Polystichum imbricans Mary Susan Taylor 1979-9-28 Taylor 2202 Butte Butte County line at Hwy 70, between boundry and Arch Rock tunnel; granitic soils and dome outcrop. 488 Comment
  CHSC28408  Polystichum imbricans subsp. curtum M. S. Taylor 1979-9-28 2202 Butte Butte county line at Hwy 70, between boundary and Arch Rock tunnel. 487 Comment
  RSA700216  Polystichum imbricans subsp. curtum L. Ahart 2004-6-22 11118 Butte On the east side of Doe Mill Road, about 1/4 mile southeast of the bridge across Butte Creek, about 2 1/4 miles (air) southeast of Forest Ranch, about 5 (air) miles west of Stirling City 629 Comment
  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
  RSA713016  Polystichum imbricans subsp. imbricans L. Ahart 2005-11-12 12488 Butte On the west side of Dark Canyon Creek, about 150 yards south of the train tunnels, west of Dark Canyob Road about 2.5 air mile south of Highway 70 at Big Bend Road. 294 Comment
  CHSC34679  Polystichum munitum L. Ahart 1981-11-8 3231 Butte Along the road to the Golden Trout Crossing, ca. 7 mi w of Sly Creek Dam. 800 Comment
  CHSC37655  Polystichum munitum T. B. Devine 1981-8-25 758 Butte Beside Hwy 70 near Bear Ranch Creek, along N Fork of Feather River near Cresta. 426 Comment
  UC478558  Potamogeton berchtoldii E. B. Copeland 1931-7-20 604 Butte Jonesville 1650 Comment
  JEPS106244  Potamogeton diversifolius Lowell Ahart 2004-7-11 11226 Butte On the southeast shore of Paradise Lake, about 3/4 mile northeast of the picnic area, about 1 mile northeast of Paradise Dam, about 4 miles (air) southwest of Stirling City 814 Comment
  CAS-BOT-BC453687  Potamogeton gramineus H. F. Copeland 1930-7-29 1536 Butte Jonesville 1828 Comment
  UCD113869  Potentilla gracilis A. A. Heller 1917-7-26 12836 Butte Butte Meadows. 1280 Comment
  CHSC44349  Poterium sanguisorba Lowell Ahart 1988-5-15 6000 Butte On the west side of Lone Tree Road, about 1 mile north of Central House Road, about 11 miles south of Oroville. 36 Comment
  JEPS117525  Proboscidea lutea Lowell Ahart 2010-9-24 17238 Butte Near the east edge of the Golf Course, about 10 yards north of the footbridge, northeast of the Golf Club House, on the north side of Big Chico Creek, Bidwell Park. 94 Comment
  UCSC000640  Prunella vulgaris subsp. lanceolata Kate Conger 1907-1 s.n. Butte Brush Creek Comment
  CHSC28927  Prunella vulgaris var. lanceolata M. S. Taylor 1978-7-21 1819 Butte On s side of Oroville-Quincy Hwy along creek, in a meadow, ca. 14 mi n of Lake Madrone. 1463 Comment
  CHSC52062  Prunella vulgaris var. lanceolata B. Castro; P. Broyles, R. A. Schlising, L. P. Janeway 1987-7-19 146 Butte Ca 5.5 mi n of Inskip on e side of Humbug Summit Road ('Skyway' on quad map) opposite Cornelia Lott Sank Memorial Spring. 1536 Comment
  CHSC776  Prunella vulgaris var. lanceolata R. M. Staley 1952-7-1 Butte Honey Run. 182 Comment
  UC139772  Prunella vulgaris var. lanceolata Mrs. R. M. Austin July 1896 566 Butte Colby Comment
  CAS-BOT-BC159827  Prunus avium C. R. Quick 1953-8-11 53 -125 Butte Rag Dump Meadow se. of Stirling City Comment
  CAS-BOT-BC159927  Prunus emarginata E. B. Copeland 1931-7-28 650 Butte Jonesville. On ridge west of North Willow Creek 1650 Comment
  CHSC1586  Prunus virginiana var. demissa M. Davidson 1929-2-24 Butte Butte Creek. Comment
  CHSC82272  Pseudobahia heermannii R. A. Schlising 1980-3-24 3526 Butte NE of Chico at Covered Bridge over Butte Creek, at junction of Humbug and Honey Run Roads. Comment
  CHSC37501  Pseudognaphalium beneolens J. D. Jokerst; L. Ahart, M. S. Taylor 1983-1-17 1686 Butte Table Mountain. At the north edge of the mesa. Top of North Table Mt. Comment
  JEPS124134  Pseudognaphalium beneolens Lowell Ahart 2015-11-7 20624 Butte About 1/8 mile south of the end of Alternate 40, strand of Lake Oroville, Dark Canyon, about 4 miles (air) south of Highway 70, about 8 miles (air) southeast of Paradise. Comment
  CHSC42464  Pseudognaphalium luteoalbum Lowell Ahart 1987-5-6 5500 Butte Along the North Fork of the Feather River, near Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CAS-BOT-BC357002  Pseudognaphalium luteoalbum Lowell Ahart 1979-12-29 2024 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC357003  Pseudognaphalium luteoalbum Lowell Ahart 1980-5-25 2348 Butte Along Ponderosa Way 500 Comment
  CAS-BOT-BC357004  Pseudognaphalium luteoalbum Lowell Ahart 1987-5-6 5500 Butte Along the North Fork of the Feather River, near Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  SEINET11739303  Pseudotsuga menziesii Unknown 1982-1 1 Butte 50 m W of Coultolenic Road, 150 m E of Skyway, 0.5 km N of Magalia 700 Comment
  UCD135121  Pseudotsuga menziesii var. menziesii John Thomas Howell 1962-6-15 37434 Butte Sierra Nevada, Magalia. 731 Comment
  CAS-BOT-BC361829  Psilocarphus oregonus E. B. Copeland 1931-7-20 s.n. Butte Jonesville. Near Butte Creek House 1700 Comment
  CHSC28147  Psilocarphus oregonus Robert A. Schlising; Ellen Sanders 1979-4-29 3378 Butte Richvale vernal pools, 1/4 mi n of jct Hwy 99 and Hwy 162 to Oroville; across from Thermalito Afterbay. Only in pools close to Hwy 99. Comment
  CHSC46965  Psilocarphus oregonus Lowell Ahart 1979-5-11 1869 Butte In a grain field, Peter Ahart Ranch, about 2 miles north and 3/4 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  SEINET10475180  Psilocarphus oregonus Mary Susan Taylor 1979-5-6 Taylor 2003 Butte Peter & Lowel Ahart Ranch, Honcut; Valley Grassland. Comment
  CHSC112199  Psilocarphus tenellus Lowell Ahart 2013-4-20 18555 Butte In corral at the barn, about 1/4 mile north of the Honcut Cemetary, about 3 1/4 mile (air) northeast of Honcut. 47 Comment
  JEPS120953  Psilocarphus tenellus Lowell Ahart 2013-4-20 18555 Butte Corral at the barn, about 1/4 mile N of Honcut Cemetery, about 3.25 air miles NE of Honcut. Comment
  JEPS117508  Psilocarphus tenellus var. globiferus Lowell Ahart 2010-5-22 16722 Butte North of the road, about 100 yards west of the fence, about 1/4 mile east of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville 387 Comment
  CHSC70975  Psilocarphus tenellus var. tenellus Vernon Oswald 1998-5-6 8989 Butte Upper Bidwell Park (new addition), South Rim Trail ca. 0.25 mi west of Pine Trail. 396 Comment
  SEINET10452195  Psoralea macrostachya Lowell Ahart 1985-6-30 Ahart 5080 Butte About 2 1/2 miles north-east of Forbestown. Alt. 2850 ft. 868 Comment
  CHSC20719  Pteridium aquilinum var. pubescens M. S. Taylor 1975-8-31 897 Butte On w side of Butte Creek, ca. 5 ft n of Humboldt Rd, ca. 1/2 mi e of Butte Meadows. 1341 Comment
  CHSC28127  Pteridium aquilinum var. pubescens R. E. Barry 1972-5-6 58 Butte Located ca 50 yds s of the KHSL transmitter on the w side of Cohasset Road, ca 15 mi n of Chico Municipal Airport. 1066 Comment
  CDA13287  Pterospora andromedea G. F. Hrusa, T. D. Wilfred 1996-7-9 13135 Butte Plumas National Forest; E of Jordan Creek near headwaters, S of Hwy 162 near Roger's Cow Camp. Comment
  CAS-BOT-BC239788  Puccinellia arctica Lowell Ahart 1981-7-18 2943 Butte About 5.5 mi. SW of Oroville 35 Comment
  CHSC78245  Pyrola aphylla Lowell Ahart 2000-7-11 8573 Butte On the north side of a dirt road, about 100 yards north of Lumpkin Ridge Road, upper west branch of Know-nothing Creek, about 1 mile southwest of the intersection of Lumpkin Ridge Road, road to Fall River, and the County Road, about 4 miles (air) northeast of Feather Falls. 1219 Comment
  UC726204  Pyrola picta A. A. Heller 1941-6-22 16181 Butte at Cohassett Comment
  JEPS119748  Pyrus communis Lowell Ahart 2012-5-17 18079 Butte North of Big Chico Creek, on the west side of the horse trail, southwest of the southwest corner of the old walnut orchard, about 3/5 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  JEPS46211  Quercus X morehus W. I. Follett 1934-7-8 Butte Bidwell Bar Comment
  CHSC101305  Quercus berberidifolia Lowell Ahart 2009-4-22 15577 Butte West side of Guardians Trail, about 100 yards north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  CHSC25470  Quercus berberidifolia Hayes; Warner 1977-9-11 65 Butte Along Hwy 32 at Toll Gate Way below Forest Ranch, exactly 14.4 mi from the Hwy 99 overpass. 609 Comment
  UCSB1123  Quercus berberidifolia Copeland, H. 1939-7-8 Butte Humboldt Road 12 miles east of Chico Comment
  CHSC20506  Quercus chrysolepis M. S. Taylor 1975-5-2 549 Butte Ca. 1/4 mi w of Cohasset Rd, ca. 21 mi ne of Chico. 1036 Comment
  CHSC29708  Quercus chrysolepis J. D. Jokerst 1980-4-21 630 Butte Top of North Table Mt., N of Cherokke Rd. 381 Comment
  UCD45944  Quercus durata D. Sanchez-Mata; P. Rodriguez-Rojo 1997-8-16 s.n. Butte Magalia near Magalia Reservoir. 680 Comment
  CDA13879  Quercus garryana var. semota G. F. Hrusa, T. D. Wilfred 1997-5-7 13738 Butte Sierra Nevada; Slopes facing Little Butte Creek above Magalia Reservioir, N of Magalia. Comment
  CHSC30793  Quercus kelloggii M. S. Taylor 1980-5-27 2657 Butte On trail to Big Bald Rock from parking lot, ca. 3 mi e of Lake Madrone. 996 Comment
  RSA134791  Quercus lobata Percy C. Everett, E. K. Balls 1959-10-20 23905 Butte Bidwell Park, Chico. Comment
  CHSC100469  Quercus robur Lowell Ahart; John Dittes 2008-11-14 15453 Butte In the south part of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  CAS-BOT-BC104488  Quercus vacciniifolia Lowell Ahart 1988-7-28 6140 Butte At the north side of the dam at Lost Creek Reservoir 1005 Comment
  CAS-BOT-BC104691  Quercus wislizeni John Thomas Howell; H. Keith Wagnon 1980-5-28 53712 Butte Honcut Creek on road from Oroville to Marysville 30 Comment
  UC5836  Quercus wislizeni unknown 1472 Butte Table Mountain, near Oroville Comment
  CHSC622  Quercus wislizeni var. frutescens M. Roberson 1956-4-7 Butte SW of Paradise along Skyway. 426 Comment
  CHSC70902  Ranunculus alismifolius var. hartwegii Vernon Oswald 1998-4-30 8985 Butte Meadow on the north side of Humboldt Rd. just west of Scout Rd. in Butte Meadows. In a swale running along the north side of the meadow. 1325 Comment
  CHSC48697  Ranunculus aquatilis var. aquatilis Vernon Oswald 1984-3-2 1088 Butte Beside Meridian Rd. ca 9.5 mi nnw of Chico and 0.6 mi s of the Tehama-Butte County line. In a drainage in a field. 83 Comment
  UC600476  Ranunculus aquatilis var. capillaceus H. F. Copeland 1920-7-12 Butte Jonesville; in creek Comment
  CHSC52775  Ranunculus aquatilis var. hispidulus R. Preston; R. Banchero, J. Fuller, R. A. Schlising 1981-7-21 4159 Butte NE part of county, N of Snow Mountain ridge. In small lake. 1950 Comment
  CHSC41528  Ranunculus aquatilis var. subrigidus Kirsten Tarp 1983-8-27 356 Butte N part of county, n of Philbrook Reservoir, at Coon Hollow. In stream. 1706 Comment
  RSA516356  Ranunculus bonariensis var. trisepalus Barbara J. Ertter 1986-4-13 5901 Butte 2 air miles NNE of Honcut between Oroville and Marysville, Peter Ahart Ranch (mostly used as sheep pasture). 30 Comment
  CHSC1477  Ranunculus canus Garnett; Durbrow 1928-2-19 Butte Richardson Springs road. Comment
  RSA3795  Ranunculus canus A. A. Heller 1926-3-31 13916 Butte 14 miles S of Chico. Comment
  SEINET8359672  Ranunculus canus A. Heller 1926-3-31 13916 Butte Nelson, 14 miles S of Chico. Comment
  CHSC53701  Ranunculus hebecarpus Kirsten Tarp 1983-4-3 260 Butte S part of county, sw of Bangor on Bangor Park Rd., roadside. 103 Comment
  CHSC20518  Ranunculus muricatus M. S. Taylor 1975-4-26 532 Butte In meadow ca. 1/4 mi ne of Kunkle Reservoir, ca. 1 mi s of Paradise. 609 Comment
  CHSC4583  Ranunculus muricatus C. Glascock 1965-4-26 357 Butte 2723 Oro-Quincy Hwy. in e lawn, Oroville. Comment
  CHSC8739  Ranunculus muricatus S. Chulasmai 1966-4-15 5 Butte Stream bank (Keefer Rd). Comment
  UC204949  Ranunculus occidentalis A. A. Heller 1914-6-22 11498 Butte Chico Meadows Sierra Nevada 1219 Comment
  CHSC3636  Ranunculus occidentalis var. occidentalis Alice L. Stoll 1966-2-28 31 Butte 7.9 miles N.E. of Chico E. of road near Salmon Hole, Upper Bidwell Park. Comment
  CHSC11809  Ranunculus occidentalis var. ultramontanus E. B. Copeland 1930-6-26 642 Butte Jonesville. In meadows. 1550 Comment
  CHSC41519  Ranunculus occidentalis var. ultramontanus Kirsten Tarp 1983-8-6 341 Butte E of Butte Meadows, near creek. 1341 Comment
  CHSC52827  Ranunculus orthorhynchus var. orthorhynchus Kirsten Tarp 1983-7-28 309 Butte Chico Meadows, ca. 1 mi n of Butte Meadows in ne part of county. In meadow. 1295 Comment
  SEINET10907334  Raphanus sativus Mary Susan Taylor 1975-3-25 Taylor 422 Butte Chico. Comment
  CAS-BOT-BC74262  Raphanus sativus A. A. Heller 1914-3-16 11203 Butte Low hills 8 miles north of Oroville. Comment
  CAS-BOT-BC59878  Rhamnus ilicifolia John Thomas Howell; Gordon H. True 1968-5-13 44334 Butte Cherry Hill Road at Rincon Trail, Brush Creek Canyon. Kern Plateau. 1463 Comment
  CHSC88070  Rhamnus ilicifolia R. D. Fischer 2004-6-6 156 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located on Guardian Trail just south of the 10 Mile House Road junction. 420 Comment
  UC1121842  Rhamnus ilicifolia J. E. Sowder 1933-11-27 132 Butte near Hog Spring; Chico Quad. 243 Comment
  POM219424  Rhamnus rubra E. B. Copeland 1931-7-28 657 Butte Jonesville. 1650 Comment
  SEINET5569772  Rhamnus rubra H. S. Gentry, S. Koch 1962-1 19761 Butte 6-7 mi. south of Cohasset, along road from Chico. 609 Comment
  CHSC82376  Rhamnus tomentella subsp. tomentella Lowell Ahart 2002-6-2 9676 Butte West of a small open dry meadow, southwest of the intersection of Black Bart Road and Forbestown Road, about 3 miles (air) southwest of Forbestown. 670 Comment
  JEPS48071  Rhamnus tomentella subsp. tomentella Paul C. Hutchison with J. K. Wright and R. Bacigalupi 1963-6-1 2689 Butte w side Pulga Bridge (at Pulga Bridge); North Fork of Feather River Comment
  CAS-BOT-BC200684  Rhus aromatica Lewis S. Rose 1945-5-12 45026 Butte Richardson Springs 304 Comment
  CHSC51992  Rhus aromatica L. P. Janeway 1988-4-10 2617 Butte Butte Cyn; grassy slope below Centerville Rd (Humbug Rd) 1.0 mi NE of Honey Run Rd. 115 Comment
  JEPS87159  Rhynchospora capitellata Lowell Ahart 1992-8-2 6901 Butte about 3 (air) mi ne Concow Reservoir (w side of meadow); Concow Meadow 1097 Comment
  JEPS98301  Rhynchospora capitellata Lowell Ahart 2000-6-27 8521 Butte Seepy area, north part of Big Bald Rock, area is about 100 yards south and west of the north and east forest line, about 3 miles (air) east of Madrone Lake, about 12 miles (air) northeast of Oroville. 963 Comment
  SEINET7589325 Image available Rhynchospora capitellata L. P. Janeway, S. Galen Smith 2006-7-27 8821 Butte Pulga 7.5' quad, Northern High Sierra Nevada. Northeast side of Flea Valley, 1.1 km west-northwest of Flea Mountain. 1140 Comment
  CAS-BOT-BC92267  Ribes amarum A. A. Heller 1938-5-1 15057 Butte Near DeSabla. Comment
  SEINET3118940 Image available Ribes cereum E. B. Copeland 1931-1 645 Butte Jonesville, Kirby's Meadow 1800 Comment
  CAS-BOT-BC212669  Ribes nevadense A. A. Heller 1913-6-7 10823 Butte West Branch of the North Fork of the Feather River near Stirling 914 Comment
  CHSC20051  Ribes roezlii M. S. Taylor 1975-4-25 496 Butte Abundant along dirt rd, ca. 1/4 mi e of Cohasset Hwy, ca. 10 mi n of Chico. Comment
  CHSC44939  Ribes roezlii Richard Steward 1988-4-25 8 Butte Ca. 6 mi n, 1.5 mi nw of Paradise. 640 Comment
  LA205496  Ribes roezlii E. B. Copeland; 1931-5-9 sn Butte Jonesville 1500.0 Comment
  SFV10389  Ribes roezlii M. L. Vincent 1964-4-10 559 Butte Highway 32, 10 miles northeast of Chico. 520 Comment
  UCD102477  Ribes roezlii M. Vincent 1964-4-10 559 Butte Hwy. 32. 10 miles NE of Chico. Comment
  SEINET13942773 Image available Ribes roezlii A. A. Heller 2015-1 11031 Butte Summit of the Sierra Nevada above Jonesville, elevation 7000 feet, on the summit of a ridge about rocks. 2134 Comment
  CHSC27203  Robinia pseudoacacia P. Moyer 1972-4-9 163 Butte CSUC Campus. S bank Chico Ck. at L.S. Bridge. 60 Comment
  CAS-BOT-BC74459  Rorippa curvisiliqua Lowell Ahart 1982-8-22 3761 Butte Along the bottom of North Honcut Creek, a little southwest of the Peter Ahart Ranch. 50 Comment
  CHSC65453  Rorippa curvisiliqua V. Oswald; L. Ahart 1990-2-26 4136 Butte Enterprise Launch Area on the South Fork of Lake Oroville. Along a streamlet on the upper strand of the lake east of the launching ramp. 268 Comment
  UC1594677  Rorippa curvisiliqua Lowell Ahart 1992-3-21 6738 Butte s Spillway Boat Launch Area (below the high water line Lake Oroville); below the high water line of Lake Oroville 243 Comment
  CHSC94178  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2006-6-18 12795 Butte Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. In a rice field. 31 Comment
  CHSC112744  Rorippa curvisiliqua var. orientalis Lowell Ahart 2013-11-13 19230 Butte Below the high water line of Lake Oroville, along the sides of Sucker Creek, about 30 yards north of the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 244 Comment
  CHSC36687  Rorippa curvisiliqua var. orientalis R. E. Preston 1982-5-19 289 Butte In meadow; 1/4 mi n of Fall River Campground. 1021 Comment
  JEPS103432  Rorippa palustris var. occidentalis Lowell Ahart 2002-4-15 9491 Butte On the E side of a canal bank, on the W side of Faris Road, 3 miles W of West Biggs Gridley Road, ca 3 miles (air) SW of Biggs. 24 Comment
  JEPS113534  Rosa Lowell Ahart 2007-6-12 14067 Butte North of the parking area at Big Bald Rock, about 14 miles (air) northeast of Oroville 893 Comment
  CAS-BOT-BC146436  Rosa bridgesii A. A. Heller 1913-6-7 10809 Butte Near Stirling 1074 Comment
  CHSC50339  Rosa bridgesii Vernon Oswald 1990-5-14 4215 Butte Dirt road to the marsh on the west branch of Brush Creek, 0.3 mile east of Bald Rock Rd, ca. 0.75 mile south of the town of Brush Creek. 1033 Comment
  JEPS110144  Rosa bridgesii Lowell Ahart 2006-6-24 12857 Butte Disturbed area on the west side of the dirt road (Ponderosa Way), at an intersection, a gated road goes northwest, on Cohasset Ridge, about 3 3/4 miles (air) northeast of Cohasset 1127 Comment
  CHSC30739  Rosa gymnocarpa M. S. Taylor 1980-5-27 2732 Butte On n side of Bald Rock Rd, ca. 0.5 mi e of its jct with Oroville-Quincy Hwy, ca. 0.5 mi s of Lake Madrone. 701 Comment
  RSA718379  Rosa gymnocarpa L. Ahart 2006-6-24 12856 Butte On the W side of the dirt road (Ponderosa Way) at an intersection, a gated road goes NW, on Cohasset Ridge, about 3.75 miles (air) NE of Cohasset. 1128 Comment
  CHSC103228  Rosa multiflora L. P. Janeway; B. Castro 2010-4-30 9970 Butte Sacramento Valley. Lower Bidwell Park, Chico; along southeast side of Big Chico Creek about 160 m northeast of intersection of E. 8th Street and El Monte Avenue. 75 Comment
  SD241945  Rosa pisocarpa subsp. ahartii Barbara Ertter, Lowell Ahart 2007-6-23 19074 Butte Black Bart Road 1.3 miles from lower junction with Forbestown Road, ca 10 airmiles ESE of Oroville. 655 Comment
  UC1926782 Image available Rosa pisocarpa subsp. ahartii Barbara Ertter, Lowell Ahart 2007-6-23 19074 Butte Butte County: Black Bart Road 1.3 miles from lower junction with Forbestown Road, ca 10 airmiles ESE of Oroville. 655 Comment
  JEPS120765  Rotala ramosior Lowell Ahart 2013-9-20 19059 Butte About 100 yards west of the railroad, about 400 yards south of the Rice Experiment Station buildings, about 2 miles SE of Richvale. Comment
  JEPS88409  Rotala ramosior Vernon H. Oswald and Lowell Ahart 1996-7-22 8085 Butte U.S. Fish and Wildlife Service between Seven Mile Lane and Sacramento River (Sacramento River National Wildlife Refuge, Llano Seco Unit, nw corner of Tract 9.1, Sanctuary I); Sacramento River National Wildlife Refuge, Llano Seco Unit 30 Comment
  RSA0112567  Rotala ramosior Lowell A. Ahart 2013-9-20 19059 Butte About 100 yards west of the railroad, about 400 yards south of the Rice Experiment Station buildings, about 2 miles southeast of Richvale. 31 Comment
  CDA31997  Rubus armeniacus L. Ahart 2008-5-23 15771 Butte On the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. Comment
  CHSC96817  Rubus glaucifolius Lowell Ahart 2007-5-29 13922 Butte About 1/8 mile south of Bald Rock Dome, on the east side of the Dome Trail, trail leads to the Middle Fork of the Feather River, about 1 1/4 miles by the trail from the trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Big Bald Rock, about 16 miles (air) northeast of Oroville. 685 Comment
  JEPS127564  Rubus glaucifolius Emily Meigs Doe 2015-4-23 25 Butte Northern High Sierra Nevada. Plumas National Forest. About 2.7 miles west-northwest of Forbestown. Approximated 150 ft east of Road 19N19, approximated 250 ft NE of its intersection with Ponderosa Way. Forbestown 7.5' Quad. Comment
  CAS-BOT-BC148351  Rubus laciniatus Clarence R. Quick 1962-8-19 62 -81 Butte Coyote Gap-Four Trees Road, Plumas National Forest Comment
  SEINET10483573  Rubus laciniatus Mary Susan Taylor 1980-5-8 Taylor 2606 Butte T24N R3E e half nw sec 33. Paradise quad. Ca. 3 mi N of Forest Ranch, ca. 1 mi E of Hwy 32; area soon to be deve loped; Yellow Pine Forest. 853 Comment
  SEINET10483578  Rubus laciniatus Lowell Ahart, Peter Ahart 1984-6-10 Ahart 4696 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown; Yellow Pine Forest; 700 m. 700 Comment
  SEINET10483603  Rubus procerus Mary Susan Taylor 1975-5-24 Taylor 771 Butte Lower Bidwell park, between Cork Oak Grove and Cypress Grove Picnic Area, Chico. 61 Comment
  CAS-BOT-BC158770  Rubus ursinus John Thomas Howell 1975-6-15 51077 Butte Butte Creek near Chico 60 Comment
  CHSC45768  Rudbeckia hirta var. pulcherrima Vernon Oswald 1985-7-30 1913 Butte Oroville-Quincy Hwy 8.0 mi nne of Brush Creek at Merrimac site. In meadow at the head of Peavine Creek. 1219 Comment
  CHSC6574  Rudbeckia hirta var. pulcherrima R. Carter 1966-7-10 485 Butte Found 1 mi. S Butte-Plumas Co., line along W side Oroville-Quincy Rd., in field. 1371 Comment
  CHSC113447  Rumex acetosella Lowell Ahart 2014-7-10 19632 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1664 Comment
  UC600493  Rumex acetosella H. F. Copeland 1929-6-10 Butte Jonesville Comment
  JEPS115372  Rumex conglomeratus Lowell Ahart 2009-6-3 15820 Butte Drainage below dam, about 100 yards west of the table at the old homestead and about 50 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) southwest of the intersection of Highway 32 and Ten Mile House road, about 10 miles no 232 Comment
  CAS-BOT-BC433476  Rumex dentatus Lowell Ahart 1981-5-16 2804 Butte Gray Lodge, 11 miles southwest of Gridley. Gray Lodge Waterfowl Management Area. 35 Comment
  CHSC103944  Rumex pulcher Lowell Ahart 2010-5-22 16717 Butte About 140 yards east of the fence, about 240 yards east of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 392 Comment
  CHSC52187  Rumex pulcher Pauleen Broyles 1987-5-21 1052 Butte The Nature Conservancy Vina Plains Preserve. Wurlitzer Addition. On a knoll above the confluence of Singer and Pine Creeks. Comment
  CHSC100897  Rumex salicifolius var. salicifolius R. A. Schlising; Lawrence Janeway 1988-8-2 4655 Butte Northern Butte County, north of Lomo and west of Butte Meadows, along Hwy 32 at Soda Springs Campground. 1139 Comment
  RSA0039297  Rumex salicifolius var. salicifolius Lowell Ahart 2008-6-13 14832 Butte On the bottom of Oregon Gulch, about 50 yards west of the road culvert across Oregon Gulch, bottom of an old gold mined area, about 150 yards south of the cemetery, about 10 miles (air) northeast of Oroville. 305 Comment
  CHSC106864  Sagina apetala Lowell Ahart 2011-4-28 17331 Butte Along trail in the Disc Golf Area, about 130 yards north of the entrance to the Disc Golf Area, about 40 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 398 Comment
  CHSC45580  Sagina apetala Lowell Ahart 1974-4-24 421 Butte Peter Ahart Ranch, about 1 1/2 miles north and 2 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC90917  Sagina apetala Lowell Ahart 2005-4-18 11744 Butte Overflow area on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 25 Comment
  SEINET10537649  Sagina apetala var. barbata Mary Susan Taylor 1978-4-14 Taylor 1563 Butte On E side of Williams Road in Valley Grassland, ca. 1/4 mi N of Pentz Road, on Butte College Campus, ca. 15 mi S of Chico. With Marc Hayes. 30 Comment
  CHSC52011  Sagina saginoides L. P. Janeway 1987-6-20 2271 Butte Along rd to Fall River and Cascade, 3.0 mi N of the Feather Falls-Lumpkin Ridge Rd. Near the river. 1013 Comment
  UC600587  Sagittaria cuneata E. B. Copeland 1930-7-29 405 Butte above Jonesville; above Jonesville 1700 Comment
  CAS-BOT-BC445728  Sagittaria latifolia E. B. Copeland 1929-7-29 s.n. Butte Jonesville, near Butte Creek House 1750 Comment
  UCD150366  Sagittaria montevidensis subsp. calycina William Anderson 1964-8-15 s.n. Butte Richvale-Oroville Rd. Comment
  UCD138067  Sagittaria sanfordii J. Jones 1924-11-20 s.n. Butte Biggs. Comment
  CHSC108820  Salix babylonica Lowell Ahart; John Dittes, Josephine Guardino 2012-4-6 17804 Butte On the north side of Big Chico Creek, Lost Park in Bidwell Park, city of Chico. 60 Comment
  UC600408  Salix boothii E. B. Copeland 1931-6-11 Butte at outlet Kirby Meadow; Jonesville 1800 Comment
  CHSC8626  Salix exigua E. L. Smith 1969-3-29 Butte 2 Mi. SE Chico. Comment
  RSA30394  Salix exigua Unspecified 11397 Butte Near Butte creek on the road between Durham and Nelson. Comment
  JEPS119562  Salix exigua var. hindsiana Lowell Ahart 2012-6-28 18237 Butte On the north side of Big Chico Creek, east of Sycamore Pool, Lower Bidwell Park, Chico. Comment
  RSA0045618  Salix exigua var. hindsiana Lowell A. Ahart 2012-4-9 17828 Butte East of the cement dam in Big Chico Creek, west of South Rim Trail, south part of Upper Bidwell Park, about 2 miles (air) northeast of Chico. 111 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
  RSA28801  Salix gooddingii A. A. Heller 1914-4-6 11262 Butte Chico-Oroville road 12 miles from Chico on the banks of Dry Creek. Comment
  CAS-BOT-BC104081  Salix hindsiana A. A. Heller 1914-5-13 11397 Butte near Butte Creek on the road between Durham and Nelson, along the Sacramento River Comment
  CHSC11348  Salix laevigata Lowell Ahart 1970-3-18 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CAS-BOT-BC125178  Salix lasiandra var. lasiandra A. A. Heller 1914-7-23 11594 Butte On the headwaters of Chico Creek in Chico Meadows 1219 Comment
  CAS-BOT-BC106982  Salix lasiolepis M. S. Taylor 1979-3-19 1934 Butte 1.5 mi e of Pulga bridge over Feather River, along Hwy 70, near Bear Ranch Creek, ca. 25 air mi n of Oroville 487 Comment
  CAS-BOT-BC106983  Salix lasiolepis John Thomas Howell; Gordon H. True 1969-4-8 45486 Butte Near Pulga Bridge west of Pulga 411 Comment
  CAS-BOT-BC106984  Salix lasiolepis Lowell Ahart 1987-4-30 5492 Butte along North Honcut Creek, about 2 1/2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville 67 Comment
  JEPS119530  Salix lasiolepis Lowell Ahart 2012-4-20 17887 Butte On the east side of Big Chico Creek, about 20 yards west of the trail, about 200 yards west of Ten Mile House Road, about 3/4 mile west of Highway 32, about 9 miles northeast of Chico, south part of Upper Bidwell Park. Comment
  CAS-BOT-BC129581  Salix lasiolepis var. lasiolepis A. A. Heller 1914-4-27 11324 Butte Hills 8 miles north of Oroville, on the stony banks of a winter stream 8 miles north of Oroville Comment
  UC600413  Salix lemmonii H. F. Copeland 1931-6-11 1544 Butte Kirby Meadows Jonesville; , Kirby Meadows 1828 Comment
  UC446429  Salix ligulifolia E. B. Copeland 1931-6-10 Butte below <Copeland> house between Copeland meadows Jonesville (above lower meadow) 1500 Comment
  CHSC38670  Salix lucida subsp. lasiandra Vernon Oswald 1983-5-2 411 Butte Upper Bidwell Park, Chico, along the edge of Lindo Channel downstream from the flood-control gates. 79 Comment
  JEPS120012  Salsola tragus Lowell Ahart 2012-10-28 18517 Butte East edge of Highway 70, about 1/4 mile south of Cottonwood Road, about 3 miles north of Oroville. Comment
  CHSC59109  Salvia sonomensis L. P. Janeway; B. Castro 1992-5-3 4155 Butte Forest Ranch, 1 1/2 mi south of Platte Mtn; junction of Headwaters Road and Homeplace Loop (just off Hwy 32). 960 Comment
  SD6666  Salvia sonomensis Mrs. R. M. Austin Butte Comment
  SEINET10465318  Sambucus mexicana Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4254 Butte T22N R7E nw sec 31. Ca. 2 mi e of Milsap Bar, ca. 25 mi ne of Oroville. Yellow Pine Forest; 900 m. 900 Comment
  CAS-BOT-BC238619  Sambucus nigra subsp. caerulea E. B. Copeland 1931-7-29 s.n. Butte Jonesville 1550 Comment
  CHSC43264  Samolus parviflorus Lowell Ahart 1987-9-4 5884 Butte On the bottom of North Honcut Creek, about 2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 67 Comment
  CHSC28871  Sanicula bipinnata M. S. Taylor; J. Jokerst 1980-2-23 2318 Butte Ca. 1/4 mi n of Neal Rd, on north-facing bluffs overlooking Nance Canyon, ca 4 mi sw of Paradise. 198 Comment
  CHSC38745  Sanicula bipinnatifida Vernon Oswald 1983-2-19 90 Butte Upper Bidwell Park, Chico, on the n edge of Upper Park Rd. near Parking Area P (2.0 mi e of the power lines). 207 Comment
  CHSC82487  Sanicula bipinnatifida var. flava Lowell Ahart; John Dittes, Josephine Guardino 2002-6-21 9752 Butte On the south side of a poor dirt road, Watson Ridge, about 2 miles (air) northeast of Bald Rock Dome, about 5 miles (air) north of Feather Falls (the town). Comment
  CHSC99582  Sanicula bipinnatifida var. flava L. P. Janeway 2008-5-26 9385 Butte Northern High Sierra Nevada. Saddle at head of Empire Creek, about 1.6 km west of Flea Valley. 1079 Comment
  JEPS104026  Sanicula tuberosa Lowell Ahart 2003-4-15 10101 Butte Slopes of Beatson Hollow, sw of drainage entering Beatson Hollow, ca 1 1/4 mi nw of the iron gate and fence, nw of Cherokee Rd, North Table Mountain, ca 7 mi (air) n of Oroville. 284 Comment
  SEINET10454587  Sanicula tuberosa Mary Susan Taylor 1981-3-16 Taylor 3414 A Butte T21N R4E southcenter sec 16; Cherokee q. E side of Truex Rd, ca. 0.5 mi s of its jct with Hwy 70, ca. 7 mi n of Oroville. Foothill Woodland; 1000 ft. 305 Comment
  CHSC3285  Scandix pecten-veneris M. L. Hillier 1966-5-7 Butte About 3 miles n.e. of Skyway on Humbug rd. Comment
  CHSC102597  Schedonorus arundinaceus L. P. Janeway; B. Castro 2009-7-4 9840 Butte Northern High Sierra Nevada. Along Four Trees Road 3.4 road km east of Coyote Gap; at head of minor drainage into Clear Creek, head of French Creek Basin. 1469 Comment
  CHSC24812  Schoenoplectus acutus var. occidentalis E. L. Rilla 1976-9-18 27 Butte Freshwater Marsh, .5 mi s of Gridley Rd on Pennington Rd in the Gray Lodge Waterfowl Management Area. Bench Marker 72 1 mi directly w of collection area. 21 Comment
  CHSC36552  Schoenoplectus acutus var. occidentalis L. Ahart 1982-7-10 3674 Butte On bottom of a dry duck pond, ca. 1/4 mi se of Headquarters, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CAS-BOT-BC111371  Schoenoplectus acutus var. occidentalis Lowell Ahart 1982-7-10 3674 Butte Gray Lodge, ca. 13 mi. SW of Gridley, 1/4 mile SE of the Gray Lodge Headquarters 35 Comment
  RSA127022  Schoenoplectus acutus var. occidentalis H. S. Yates 1936-8-14 6122 Butte 10 miles S. of Durham 30 Comment
  POM312850  Schoenoplectus mucronatus H. L. Mason 1946-9-27 13135 Butte 3 miles west of Biggs. Comment
  CHSC45186  Scirpus congdonii Lowell Ahart 1984-7-19 4754 Butte Bog like meadow, about 1/2 mile east of Bald Mountain, about 5 air miles north-east of Stirling City. 1905 Comment
  CHSC56806  Scirpus diffusus L. P. Janeway 1988-7-29 3130 Butte Meadow near Humbug Summit Road, 1.5 mi northeast of the Snag Lake dam. 1767 Comment
  SEINET10466961  Scirpus validus Mary Susan Taylor 1977-11-12 Taylor 1539 Butte Up to 1/4 mi beyond end of Upper Bidwell Park Road, just out of Upper Bidwell Park, Chico. Foothill Woodland. Comment
  CHSC38147  Scribneria bolanderi J. D. Jokerst 1983-5-12 1758 Butte North Table Mountain. Comment
  CHSC19935  Scrophularia californica subsp. floribunda M. S. Taylor 1975-2-16 372 Butte Ca. 1.4 mi w of Pentz-Magalia Hwy, ca. 5 mi s of Paradise, in vicinity of Lime Saddle Reservoir. Comment
  CHSC2485  Scrophularia californica subsp. floribunda W. Fitzwater 1958-4-19 Butte Chico canyon, Chico area. 350 Comment
  CHSC27791  Scrophularia californica subsp. floribunda Steven R. Johnson 1978-4-25 15 Butte Ca. 22 km n of Chico, ca. 4.8 km s of Cohasset. 590 Comment
  CAS-BOT-BC214186  Scutellaria Clare B. Hardham 1975-6-7 20426 Butte South end of Oroville Dam Comment
  CHSC39494  Scutellaria californica Lowell Ahart 1983-6-21 4060 Butte Along Bloomer Hill Road, 1/8 mile west of the Oroville Quincy Highway, 1 1/4 miles south of the Berry Creek School, north-east of Oroville. Section 5. 400 Comment
  CHSC44401  Scutellaria californica Lowell Ahart 1988-6-29 6110 Butte On bridge on Bean Creek Road, where road crosses Bean Creek, about 1/2 mile south-west of Johnson Ranch, about 2 miles south of Little Bald Rock. 609 Comment
  JEPS98476  Scutellaria californica Lowell Ahart 2000-5-31 8412 Butte 3 mi SE of Paradise (E of where Kunkle Creek enters Lake Oroville, E of Kunkle Power House) 304 Comment
  SFV5836  Scutellaria siphocampyloides M. L. Vincent 1968-6-5 768 Butte 1 mile south of Cherokee on road to Oroville. Roadside at old Campbell Ranch. 410 Comment
  JEPS115310  Scutellaria tuberosa Lowell Ahart 2009-4-22 15582 Butte South side of Guardians Trail, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  CHSC84128  Sedella pumila Lowell Ahart 2003-4-10 10082 Butte Near the easat side of the 'sunken area,' about 150 yards west of the east rim of South Table Mountain, about 2 1/2 miles (air) north of Oroville. 320 Comment
  HSC27264  Sedella pumila J. P. Smith 1972-3-23 5096 Butte 1.6 mi. from junction with Hwy. 99 on road to Paradise Comment
  POM264334  Sedella pumila H. L. Mason 1941-4-4 12409 Butte 3 miles S of Chico near junction of road to Paradise. 91 Comment
  CHSC24643  Sedum spathulifolium S. Deaton 1976-4-23 37 Butte Ca. 1 3/4 mi n of Feather Falls trail parking lot, n side of trail. 853 Comment
  CAS-BOT-BC63854  Sedum spathulifolium Junea Kelley 1970-4-24 s.n. Butte Los Vergils Comment
  CHSC117771  Selaginella hansenii L. P. Janeway 2016-11-9 12176 Butte Northern High Sierra Nevada. Plumas National Forest; rocky bench above Pulga Road 0.5 road-km north of Hwy 70 at Pulga Bridge. 502 Comment
  CHSC41990  Selaginella hansenii Lowell Ahart 1976-4-17 1082 Butte Along the trail to Feather Falls, near the Feather Falls overlook, about 5 miles north of Feather Falls. 609 Comment
  CAS-BOT-BC62114  Selaginella hansenii E. B. Copeland 1899-4-29 s.n. Butte near Chico Comment
  SEINET11718084  Selaginella hansenii R. E. Alumbaugh 1984-1 13 Butte 8.3 mi E of Chico, 6.2 mi E of Rt. 99 and ca 350 yards N of Skyway 387 Comment
  CHSC28532  Selaginella wallacei M. S. Taylor; J. D. Jokerst, L. Ahart 1979-11-15 2289 Butte North Honcut Creek, Peter Ahart Ranch, Honcut. 45 Comment
  CHSC65799  Selaginella wallacei L. P. Janeway 1994-10-23 4760 Butte On lower face of Bald Rock Dome, along Dome Trail; overlooking Middle Fork Feather River. 441 Comment
  HSC72949  Selaginella wallacei M. S. Taylor 1980-9-27 3345 Butte S side of Hwy. 70 at Butte-Plumas Co. line 549 Comment
  CAS-BOT-BC69726  Selaginella wallacei Lowell Ahart 1979-4-3 s.n. Butte Near N. Honcut Creek, Peter Ahart Ranch, Honcut. 50 Comment
  CDA14051  Senecio aronicoides G. F. Hrusa, T. D. Wilfred 1997-5-1 13699 Butte Sierra Nevada; NE side of upper end of Paradise Lake. Where last tributaries from E enter. Comment
  CHSC89479  Senecio eurycephalus var. eurycephalus Jenny Marr 1994-7-6 210 Butte Located in the mountains above Oroville off Forbestown Reservoir Road. 883 Comment
  CHSC86443  Senecio eurycephalus var. lewisrosei Jenny Marr 1993-7-1 95 Butte Located in Northern Sierra Nevada, between Concow and Pulga, on a serpentine outcrop belonging to LNF. Site approx. 4 air miles NE of Concow Reservoir. 1105 Comment
  JEPS122186  Senecio vulgaris Lowell Ahart 2014-4-16 19358 Butte On the sides but near the bottom of a large canal, about 100 yards north of East Gridley Road, on the west side of the Feather River, about 2 miles east of Gridley. Comment
  CHSC34158  Sericocarpus oregonensis Lowell Ahart 1981-8-31 3053 Butte S of the jct of Black Bart Rd and Oroville-Forbestown rd, ca. 10 mi W of Forbestown. 750 Comment
  CDA32075  Sesbania punicea C. Owens 2010-9-23 s.n. Butte Chico; 10 meters downstream of River Road in Shady Oak Slough (which connects to Little Chico Creek). 0 Comment
  SEINET10901938  Setaria glauca Mary Susan Taylor 1975-10-3 Taylor 929 Butte At bridge over Little Chico Creek on River Road, ca. 10 mi W of Chico; Ripar ian Woodland disturbed area. 37 Comment
  SEINET10901939  Setaria glauca Mary Susan Taylor 1979-10-3 Taylor 2221 Butte T23N R3E center of E eighth of sec 33. Riparian Woodland in Butte Creek Canyon, ca. 1/4 mi upstream from bridge crossing Butte Creek at Helltown Road, ca. 7 mi E of Honey Run Covered Bridge. 244 Comment
  CHSC45319  Setaria parviflora Vernon Oswald 1988-10-29 3722 Butte Chico Tree Improvement Center (former USDA Plant Introduction Station) in se Chico. 68 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
  CHSC66102  Setaria sphacelata Vernon H. Oswald 1996-5-23 7630 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. At the NE corner of Tract 7.2. Sanctuary I. 33 Comment
  JEPS119816  Setaria viridis Lowell Ahart 2012-8-10 18416 Butte On the west northeast side of Bidwell Mansion, on the southwest side of the parking area, Bidwell Mansion, Chico. Comment
  POM319038  Sidalcea Patricia Wilder 1971-6-23 5196 Butte One mile E of Forbestown on Challenge cut-off Road, near junction with Forbestown Road. East of Oroville.; Mt. Range: West slope of the Sierra Nevada; Drainage Area: Feather River. 823 Comment
  JEPS97942  Sidalcea gigantea G. Clifton 1999-7-3 36019 Butte Pulga Comment
Read comments
Feb 9 2008
  JEPS97945  Sidalcea gigantea G. Clifton 1999-7-3 36019 Butte Pulga Comment
Read comments
Feb 9 2008
  UC600531  Sidalcea glaucescens E. B. Copeland 1929-7-22 Butte Jonesville 1550 Comment
  UCD116651  Sidalcea glaucescens H. F. Copeland 1930-7-20 s.n. Butte Jonesville. 1524 Comment
  POM84284  Sidalcea hartwegii C. C. Bruce 1897-05 1922 Butte [No location information on label.] Comment
  CHSC34958  Sidalcea hirsuta Michelle Snipes 1977-4-18 11 Butte Small population ca 0.3 mi W of Highway 99 near Cana Highway. 59 Comment
  SJSU8536  Sidalcea hirsuta J. B. Willis Jr. 1969-5-3 99 Butte by State Hwy 70 c. 7 mi NE of Oroville Comment
  CHSC29963  Sidalcea oregana subsp. spicata R. A. Schlising 1980-6-26 3786 Butte Chico Meadows, S of Scout Road, 1.1 mi N of Butte Meadows junction of Skyway and Humboldt Roads. 1310 Comment
  JEPS121909  Sidalcea oregana subsp. spicata Lowell Ahart 2014-7-16 19683 Butte About 30 yards east of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  CAS-BOT-BC384465  Silene antirrhina Lowell Ahart 1988-5-30 6027 Butte Near the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  CAS-BOT-BC384466  Silene antirrhina Lowell Ahart 1985-5-31 5032 Butte About 25 feet below the high water line of Lake Oroville, 1/8 mile east of the Enterprise Launch Area, about 1/2 mile west of the Enterprise Bridge across Lake Oroville, north-east of Oroville 274 Comment
  CHSC40792  Silene antirrhina Lowell Ahart 1985-5-31 5032 Butte About 25 feet below the high water line of Lake Oroville, 1/8 mile east of the Enterprise Launch Area, about 1/2 mile west of the Enterprise Bridge across Lake Oroville, north-east of Oroville. 274 Comment
  CAS-BOT-BC174847  Silene bernardina Lowell Ahart 1988-7-31 6163 Butte On the south side of the road, about 1 air mile north-east of Bald Mountain, about 4 1/2 air miles north-east of Stirling City 1676 Comment
  CHSC48265  Silene bernardina Vernon Oswald 1985-7-21 1909 Butte Jones Meadow Rd. ca. 0.1 mi s of its jct. with the dirt road coming in from Inskeep, ca. 0.7 air mi wnw of Jones Meadow Lake. On the edge of the road. 1737 Comment
  RSA755037  Silene californica L. Ahart 2009-4-26 15624 Butte About 120 yards SW of Ten Mile House Road, Upper Bidwell Park, about 1/2 air miles SW of the intersection of Highway 32 and Ten Mile House Road, about 10 miles NE of Chico. 287 Comment
  CHSC11855  Silene douglasii var. douglasii E. B. Copeland 1931-6-19 634 Butte Jonesville. Near 'the Summit. 2100 Comment
  CHSC32372  Silene gallica J. D. Jokerst 1979-5-2 1222 Butte Top of North Table Mt., S of Cherokee Rd at the E edge of the mountain. 396 Comment
  CHSC44487  Silene gallica Lowell Ahart 1988-5-12 5988 Butte Pasture field, about 1/4 mile north-east of the Honcut Cemetery, Joie Osgood Ranch, about 3 1/2 miles east and 1 1/2 miles north of Honcut. 60 Comment
  HSC38052  Silene gallica Thomas W. Nelson, Jane P. Nelson 1976-5-9 2458 Butte Intersection of Palermo Rd. and Hwy. 70, 4 mi. S of Oroville Comment
  CHSC9280  Silene laciniata subsp. californica D. C. Burns 1971-4-2 109 Butte On n side of Cohasset rd. ca. 1.5 mi w of the intersection of Cohasset rd. and Vilas rd. 487 Comment
  SEINET7073605  Silene noctiflora A. G. Vestal 1955-5-20 s.n. Butte Bank of Honey Run Road about 8 miles east of Chico. UTM Zone 10, 613369mE, 4399651mN. Coordinate datum: NAD27. Comment
  CAS-BOT-BC181358  Silene occidentalis A. A. Heller 1917-7-26 12820 Butte Butte Meadows 1402 Comment
  SBBG119799  Sisyrinchium bellum L. Ahart 2006-7-16 12998 Butte Willow Crk, ca. 0.75 air mi NW of Jonesville, ca. 5 air mi NE of Butte Meadows 1515 Comment
  CHSC38725  Solanum americanum Vernon Oswald 1983-7-21 887 Butte Upper Bidwell Park, Chico, in Lindo Channel near the flood-control gates. 79 Comment
  CHSC97398  Solanum americanum Robert Fischer 2006-6-27 1004 Butte Chico. Within upper Bidwell Park in the City of Chico. 60 Comment
  RSA4121  Solanum parishii E. B. Copeland 1930-7-27 453 Butte Jonesville. 1600 Comment
  CAS-BOT-BC231712  Solanum umbelliferum Frances Brown 1935-4-1 s.n. Butte Near Durham Comment
  UC1125062  Solanum umbelliferum C. G. Albertus 1933-6-26 32 Butte 1/2 mi s of Nelson's Bar 365 Comment
  CAS-BOT-BC365377  Solidago elongata H. F. Copeland 1920-8-12 125 Butte In Jonesville Meadow 1219 Comment
  CAS-BOT-BC365840  Soliva sessilis Lowell Ahart 1979-5-11 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CHSC37276  Sonchus asper M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4351 Butte Graylodge Waterfowl Refuge, n side of Rutherford Rd, ca. 1.8 mi w of its jct with Pennington Rd at the checking station, ca. 12 mi sw of Gridley. 21 Comment
  CHSC44899  Sonchus asper Lowell Ahart 1988-7-31 6155 Butte Along the road gutter, north of small stream, 1 1/2 air miles west and a little south of Bald Mountain, about 3 air miles north-east of Stirling City. 1066 Comment
  SEINET10938100  Sonchus asper Mary Susan Taylor 1981-5-15 Taylor 3736 Butte T22N R5E nw/nw sec 5, Pulga SW quad. SE side of jct of Four Trees Rd and Feather River Hwy 70, ca. 3/4 mi N of Pulga bridge. l500 ft. 457 Comment
  CHSC36090  Sorbus scopulina R. A. Schlising; F. J. Fuller, R. Banchero 1982-6-30 4311 Butte NE part of county, E of Inskip and SE of Jones Meadow. At side of stream. 1767 Comment
  CDA13256  Sorbus scopulina var. cascadensis G. F. Hrusa, T. D. Wilfred 1996-7-9 13107 Butte Plumas National Forest; Drainage of Jordan Creek, S of Hwy 162 near Roger's Cow Camp. Comment
  UC1099803  Sparganium eurycarpum var. eurycarpum Herbert L. Mason and Verne Grant 1946-8-14 13016 Butte Butte Sink; Sacramento Outing Club Comment
  CHSC35004  Spergula arvensis subsp. arvensis R. A. Schlising; R. Banchero 1981-4-17 4039 Butte S part of county, NE of Honcut and SW of Bangor; 2.5 miles N of La Porte road along Dunstone Road. At roadside. Comment
  CHSC45898  Spergularia bocconi Lowell Ahart 1974-6-9 478 Butte Near roads, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC66074  Spergularia bocconi Vernon H. Oswald 1996-5-22 7622 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. On a bank along the Sacramento River at the N end of the Riparian Sanctuary. 30 Comment
  CAS-BOT-BC390131  Spergularia bocconi Lowell Ahart 1981-4-6 2743 Butte Sutter Buttes Region. West of the Gray Lodge Headquarters, about 8 miles southwest of Gridley 35 Comment
  CHSC50033  Spergularia rubra Lowell Ahart 1990-4-15 6461 Butte Near a small stream, below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/8 mile north-west of the Enterprise Bridge across Lake Oroville. 289 Comment
  RSA0098132  Spergularia rubra L. Ahart 2008-5-8 14712 Butte About 100 yards south of the poor parking area, about 50 yards east of McCabe Creek, about 3/4 mile southwest of the Enterprise Bridge, about 11 air miles east of Oroville. 260 Comment
  SEINET10937235  Spiraea densiflora Mary Susan Taylor 1980-8-2 Taylor 3213 Butte T27N R5E center sec 32, Jonesville quad. Humboldt Peak, N tip of the county. 2155 Comment
  CAS-BOT-BC147948  Spiraea douglasii E. B. Copeland 1929-7-15 374 Butte Jonesville 1500 Comment
  CHSC45809  Spiraea douglasii L. P. Janeway; R. A. Schlising 1988-7-22 3045 B Butte Near the saddle between Coon Hollow and Chips Cr. 1889 Comment
  NY43529  Spiraea douglasii S. Bianco 1995-9-17 1028 Butte Near Camp Creek Rd, along Dogwood Creek 1098 Comment
  SEINET264180  Spiraea douglasii R. J. Becraft 1929-7-21 Butte Philbrook Creek 1829 Comment
  CHSC26677  Spiranthes porrifolia M. S. Taylor; M. Hayes, R. Schlising 1977-8-17 1464 Butte Near Butte Creek, between creek and Old Humboldt Rd, ca. 3.4 mi e of where Butte Creek crosses Old Humboldt Rd near Butte Meadows. 1341 Comment
  CHSC11986  Stachys ajugoides var. rigida E. B. Copeland 1930-7-20 451 Butte Jonesville. 1500 Comment
  CHSC43641  Stachys ajugoides var. rigida B. Castro 1987-5-18 95 Butte On w-facing hillside about 1/2 mi e of Hwy 32, ca 9 mi e of Chico via Hwy 32 and Altatina Dr. 451 Comment
  CHSC808  Stachys ajugoides var. rigida M. Roberson 1956-5-14 Butte SW of Paradise, along Skyway. 426 Comment
  CHSC42939  Stachys pycnantha Lowell Ahart 1987-7-17 5826 Butte Along the edge of the North Fork of the Feather River, near the Poe Power House, about 2 miles southeast of Jarbo Gap. 271 Comment
  UC128776  Stachys pycnantha Miss Kate Conger 1907-1 Butte Brush Creek. Comment
  SEINET10836994  Stachys pycnantha Mary Susan Taylor Taylor 319 Butte 61 Comment
  CHSC61309  Stellaria crispa Lowell Ahart 1993-7-22 7089 Butte In the campground on the west side of the bridge across Fall River, about 6 (air) miles north-east of Feather Falls. 1036 Comment
  UC1594589  Stellaria crispa Lowell Ahart 1992-6-26 6782 Butte about 0.5 mi nw Merrimac (on the e side of Rogers Cow Camp) 1219 Comment
  CHSC11852  Stellaria longifolia E. B. Copeland 1931-1-1 638 Butte Jonesville. In meadows. 1500 Comment
Read comments
May 18 2006
  CAS-BOT-BC391088  Stellaria longipes subsp. longipes H. F. Copeland 1920-8-1 190 Butte Jonesville 1219 Comment
  UC1609205  Stellaria nitens Vernon H. Oswald and Lowell Ahart 1993-3-24 5235 Butte 2 mi n Pentz Road (n of historical site of Pentz, e side of Dry Creek Canyon, on the e side of a secondary drainage entering Dry Creek); Dry Creek Canyon 243 Comment
  CHSC42694  Stellaria umbellata Vernon Oswald; Lowell Ahart 1987-7-1 3047 Butte Scotts John Rd. at 'Big Rock Meadow,' 1.0 mi n of the road connecting Humboldt and Humbug Rds, ca. 2.5 mi ene of Jonesville. In a small meadow. 1780 Comment
  CHSC50823  Stephanomeria elata Vernon Oswald 1990-7-28 4402 Butte Doe Mill Rd (Ponderosa Way), 1.5 mi (odometer) southwest of Butte Creek Bridge, ca. 2 miles (air) east-northeast of Forest Ranch. Roadside. 847 Comment
  CHSC62435  Stephanomeria paniculata L. P. Janeway 1993-9-22 4597 Butte Plumas National Forest. Canyon of North Fork Feather River; along dirt road to Bear Ranch Creek falls from Hwy 70. 487 Comment
  SEINET10827386  Stipa lettermanii Edwin B. Copel 1929-7-16 Copeland 342 Butte Jonesville; bunch forming, on light soil in open brush, moist in spring. 1550 Comment
  CHSC113959  Stipa stillmanii Lowell Ahart 2014-7-7 19567 Butte Along the east side of the Skyway, about one mile south of Inskip. 1449 Comment
  SEINET10841528  Streptanthus campestris Lowell Ahart 1983-8-16 Ahart 4283 Butte Near Humboldt Rd, ca. 3 mi sw of Butte Meadows. Yellow Pine Forest; 1450 m. 1450 Comment
  HSC35736  Streptanthus diversifolius Dave Knorr 1974-4-20 136 Butte Oroville's Table Mtn. near Cherokee Rd. Comment
  UCD78022  Streptanthus longisiliquus Robert E. Preston 2001-7-9 1673 Butte N side of The Skyway, ca. 0.15 m w of Dogtown Rd, T23N R3E nw 1/4 of ne 1/4 Section 36 713 Comment
  CHSC95054  Streptanthus polygaloides L. P. Janeway 2006-5-28 8647 Butte Northern High Sierra Nevada. Northwest side of Rim Road (Ponderosa Way) at southern end of Rocky Ridge and southern end of its serpentine openings. Southeast-facing slope near ridge top. 847 Comment
  JEPS110269  Streptanthus polygaloides Lowell Ahart 2006-6-9 12653 Butte On the west side of Bardees Bar Road, north of the small stream, about 1/8 mile west of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga 385 Comment
  RSA700213  Streptanthus polygaloides L. Ahart 2004-6-22 11111 Butte On west margin of a gravel road, road leads to Butte Creek, S of Doe Mill Road, about 1/8 mile SW of the bridge across Butte Creek, about 2 miles (air) W of Stirling City. 692 Comment
  SEINET11994741  Streptanthus polygaloides Unknown 1985-1 4975 Butte W of Lunt Rd, about 0.5 mi N of intersection of Lunt Rd & Hwy 70, N of Yankee Hill, N of Oroville 503 Comment
  CAS-BOT-BC87515  Streptanthus tortuosus L. P. Janeway 1993-6-23 4397 Butte Plumas National Forest. Oroville Ranger Station. Bald Rock Compartment. Upper end of Galen Ridge. 1036 Comment
  SEINET10841529  Streptanthus tortuosus Mary Susan Taylor 1981-5-13 Taylor 3702 Butte T22N R6E sw sec 5, Pulga SE quad. In sandy granite, on ridge above Foreman Creek, ca. 0.5 mi w of 23N15.5, ca. 1.5 mi S of its jct with Four Trees Rd, ca. 0.5 mi W of Oroville-Quincy Hwy, ca. 2 mi W of Elks Retreat. 4300 ft. 1310 Comment
  CHSC58895  Streptanthus tortuosus var. tortuosus Lowell Ahart 1992-7-29 6872 Butte About 1 miles north-east of the Carr Mine, about 3/4 mile north-west of Lotts Lake. 1798 Comment
  CHSC29799  Swertia albicaulis var. nitida M. S. Taylor; J. D. Jokerst 1980-6-14 2880 Butte On n side of Zink Rd, near entrance to Zink Ranch, ca. 2 mi e of Lake Madrone. 762 Comment
  SD4985  Symphoricarpos acutus E. B. Copeland 1930-7-7 Butte Jonesville. 1600 Comment
  SD6581  Symphoricarpos mollis Mrs. R. M. Austin 1883-1 Butte Comment
  CHSC11846  Symphyotrichum bracteolatum E. B. Copeland 1930-8-26 487 Butte Jonesville. 1500 Comment
  CHSC42993  Symphyotrichum bracteolatum Lowell Ahart 1987-7-3 5784 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles southeast of Jarbo Gap. 271 Comment
  CAS-BOT-BC98059  Symphyotrichum lentum A. A. Heller 1914-9-3 11760 Butte On the Chico-Hamilton Road 6 miles from Chico Comment
  CHSC63806  Symphyotrichum spathulatum S. C. Morey 1983-8-1 662 Butte Chico Meadows. On E side of Scout Rd., ca. 1 mi N of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  CHSC110351  Symphyotrichum subulatum var. parviflorum B. Castro; Margie Graham 2006-9-7 1610 Butte Sacramento Valley. 2 mi W of Hwy 99, 3 mi ESE of Richvale and ca 600 ft S of Richvale Hwy in Cherokee Canal.. 32 Comment
  CHSC27924  Symphyotrichum subulatum var. parviflorum M. S. Taylor 1977-11-10 1526 Butte Ca 1 mi E of jct of Nelson West Rd. and Chico-Butte Hwy on N side of Nelson West Rd. Ca 23 mi S of Chico. 30 Comment
  CAS-BOT-BC221935  Taeniatherum caput-medusae John Thomas Howell 1967-6-22 42628 Butte Magalia 701 Comment
  CAS-BOT-BC221936  Taeniatherum caput-medusae John Thomas Howell 1962-6-15 37422 Butte 5 miles west of Oroville Comment
  CHSC109354  Tanacetum vulgare T. M. Hanson 2012-10-17 Butte Northern High Si