Search Results — 2000 specimen records retrieved (1599 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)

Results for search: County=BUTTE; Source=All;   

Mapping Options:

BerkeleyMapper with county and bioregion layers
BerkeleyMapper without layers.
KML export
(Note: only records with coordinates are mappable)

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.
Turn on yellow flags to show possible range discrepancies. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CHSC26468  Abelia X grandiflora Pamela Caldwell 1971-9-26 Butte SW corner of Auditorium CSUC. Comment
  CHSC110871  Acer circinatum Tim Hanson 2013-9-24 11 Butte Northern Sierra Nevada Foothills. On the north side of Camp Creek just west of the Dixie Creek bridge and 1.5 air km northwest of the Camp Creek Powerhouse. 902 Comment
  UC600416  Acer glabrum var. glabrum H. F. Copeland 1932-6-29 Butte at the summit Jonesville Comment
  CHSC248  Achillea millefolium R. M. Staley 1952-6-28 Butte W. Branch Feather River Comment
  CHSC27659  Achnatherum lemmonii Robert A. Schlising 1978-4-23 3229 Butte Magalia; just S of the Magalia Reservoir (just W of S. T. RR and Coutelenc Road). Comment
  UCD50642  Achnatherum lemmonii W. R. Powell 1968-5-17 1512 Butte Along new Oro-Feather Falls Road, 4 miles north-northwest of Rackerby, Butte County, California. 548 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
  CHSC74035  Achnatherum nelsonii subsp. dorei B. Castro; Linnea Hanson 1996-5-24 665 Butte Ca 4 air mi E of North Fork Feather River, ca 0.5 mi S of Coyote Gap, on W side of sharp curve in USFS Rd 23N00. 1216 Comment
  CAS-BOT-BC217018  Achnatherum occidentale V. Oswald; L. Ahart 1988-7-13 s.n. Butte S side of road to High Lakes, E of Philbrook Reservoir 1859 Comment
  CHSC31213  Achnatherum occidentale subsp. californicum M. S. Taylor; J. D. Jokerst 1979-7-21 2164 Butte Humboldt Peak, at Humboldt Summit. 2154 Comment
  CHSC50441  Achnatherum occidentale subsp. californicum Vernon Oswald; Lowell Ahart 1990-6-27 4323 Butte Small lake located about 1 mile south of Brush Creek. 993 Comment
  UC590008  Achnatherum occidentale subsp. californicum P. L. Johannsen 1936-7-17 933 Butte 2 1/2 mi sse Butte Meadows; Lassen National Forest, Paynes Cr. Quadrangle 1554 Comment
  CHSC49586  Achnatherum stillmanii Vernon Oswald 1985-6-30 1872 Butte Cohasset Rd. 0.7 mi n of KHSL transmission tower. 1109 Comment
  CHSC113845  Acmispon americanus var. americanus Lowell Ahart 2014-8-24 19276 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
  CHSC28007  Acmispon americanus var. americanus M. S. Taylor 1978-7-21 1795 Butte Lake Madrone at its jct with Oroville-Quincy Hwy ca. 10 mi ne of Oroville. 609 Comment
  UCD103793  Acmispon americanus var. americanus L. E. Hazeltine 1916-7-21 s.n. Butte Chico. Comment
  JEPS119579  Acmispon brachycarpus Lowell Ahart 2012-4-17 17878 Butte About 200 yards southeast of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. Comment
  SD122541  Acmispon glaber Lowell Ahart, Peter Ahart 1984-6-10 4691 Butte Along edge of a new subdivision road ca. 1 mi SE of Hurleton, 1/12 mi E of Oak Grove Cemetary, ca. 10 mi E of Oroville; Foothill Woodland 500 Comment
  CHSC6600  Acmispon grandiflorus var. macranthus G. Estrem 1968-4-23 2 Butte Ca. 20 mi e of Oroville on hwy. 70. Ca. 100 yds. s of road on n facing slope. Comment
  JEPS120601  Acmispon nevadensis Lowell Ahart 2013-11-17 19269 Butte About 60 yards east of McCabe Creek, below the high water line of Lake Oroville, about 5/8 mile southwest of the enterprise Bridge across Lake Oroville. Comment
  CHSC113908  Acmispon parviflorus Lowell Ahart 2014-5-8 19450 Butte North of a small drainage, below the high water line of Lake Oroville, about 250 yards southeast of the trail, trail starts at the parking area at the Enterprise Boat Launch Area, about 11 miles (air) east of Oroville. 241 Comment
  SEINET12765096  Acmispon parviflorus Lowell Ahart 2014-5-13 19456 Butte Trail starts at the Enterprise Boat Launch Area, about 11 miles (air) east of Oroville.; 0 242 Comment
  CHSC101143  Acmispon wrangelianus Lowell Ahart 2009-5-15 15705 Butte On the east side of Big Chico Creek, on the east side of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 234 Comment
  CHSC111345  Acmispon wrangelianus Lowell Ahart 2012-5-2 17956 Butte On dry bare soil, 30 yards south of the fence, about 80 yards northeast of the oak tree, Upper Bidwell Park, about 1 mile east of Chico. 115 Comment
  CHSC52673  Aconitum columbianum var. columbianum Kirsten Tarp 1983-8-12 348 Butte NW of Philbrook Reservoir, near streamlet. 1798 Comment
  JEPS108865  Adenocaulon bicolor Lowell Ahart 2006-7-25 13053 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
  CHSC4632  Adiantum aleuticum R. Carter 1966-4-26 461 Butte Found ca. 15 mi. NE of Oroville at old Berry Creek RR station on N Fork Feather R., 500 yds. Up E side Berry Cr. 457 Comment
  CHSC3630  Adiantum capillus-veneris John Francis 1966-2-28 56 Butte Upper Bidwell Park, in canyon across road from and 1/4 mile E. of Salmon Hole. Comment
  CHSC39801  Adiantum capillus-veneris Ruby Gist 1935-3-1 Butte Fern Banks. Comment
  SEINET10529852  Adiantum capillus-veneris Mary Susan Taylor 1980-4-19 Taylor 2540 Butte S side of Humbug, NE of Centerville. With J.D. Jokerst. 366 Comment
  CHSC41988  Adiantum jordanii Lowell Ahart 1975-3-7 704 Butte Along Ponderosa Way, about 1 1/2 miles south of the Ponderosa Reservoir, north-west of Forbestown. 426 Comment
  SEINET10966247  Adiantum jordanii Mary Susan Taylor 1976-4-4 Taylor 1059 Butte Yellow Pine Forest, ca. 2-5 mi W of junction of Ponderosa Way and Hwy 32, ca. 2-10 ft N and S of Ponderosa Way, ca. 23 mi NE of Chico; with Sanicula bipinnata, Calochortus monophyllus. 488 Comment
  CDA1641  Aegilops cylindrica D. Conway Jun 1991 Butte Butte College campus, 3536 Butte Campus Drive, 4 miles east of Durham on Durham-Penz Road 0 Comment
  CAS-BOT-BC202592  Aesculus californica Grace Kermode 1899-5-30 s.n. Butte Centerville Comment
  CHSC37636  Agoseris retrorsa T. B. Devine 1981-5-28 733 Butte Ca. 1/4 mi from Bucks Lake Road on Mountain House Creek Road. 1066 Comment
  CHSC31440  Agrimonia gryposepala L. Ahart 1980-7-29 2504 Butte Near Forbestown Rd, ca. 100 m e of the jct of Black Bart Rd and Forbestown Rd, ca. 1 mi w of Robinson Mill Rd, w of Forbestown. 750 Comment
  SEINET10506789  Agrostis Mary Susan Taylor 1978-7-21 Taylor 1810 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
  RSA754963  Agrostis avenacea L. Ahart 2008-5-21 14779 Butte Lake Oroville, north and south side of the South Fork of the Feather River, where Sucker Creek enters the South Fork of the Feather River, about 0.25 mile northwest of the Ponderosa Dam. 246 Comment
  CAS-BOT-BC127331  Agrostis exarata A. A. Heller 1914-8-6 11648 Butte Chico Meadows. 1219 Comment
  CAS-BOT-BC127333  Agrostis exarata Lowell Ahart 1977-6-16 s.n. Butte Peter Ahart Ranch, Honcut. Edge of North Honcut Creek. 50 Comment
  UC1594700  Agrostis exarata Lowell Ahart 1992-7-21 6810 Butte about 2 (air) mi ne Philbrook Reservoir (s side Coon Hollow); s side Coon Hollow 1737 Comment
  UC1609047  Agrostis exarata Lowell Ahart 1993-7-23 7092 Butte about 6 air mi ne Feather Falls (on the w side of Fall River, about 100 yds w of the bridge across Fall River) 1036 Comment
  SEINET10507080  Agrostis exarata Lowell Ahart 1983-8-16 Ahart 4290 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
  SEINET10789979  Agrostis exarata Lowell Ahart 1982-1 Ahart 3823 Butte On damp red granite soil & on a steep shaded road bank along dirt road by Pinkard Creek, ca. 1/8 mi. N of Lost Creek Reservoir Dam, ca. 1/2 mi NW of Strawberry Valley. Yellow Pine Forest. 1100 Comment
  CHSC51285  Agrostis exarata var. monolepis Lowell Ahart 1990-9-30 6608 Butte On the bottom 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
  JEPS116002  Agrostis pallens Lowell Ahart 2009-6-19 15929 Butte Meadow, about 30 yards south of the fence and about 100 yards east of Ten Mile House Road, Upper Bidwelll Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 269 Comment
  UCD53330  Agrostis scabra A. A. Heller 1917-7-26 12847 Butte Butte Meadows. 1280 Comment
  CAS-BOT-BC138579  Agrostis variabilis V. Oswald; L. Ahart 1988-8-16 3692 Butte Ca. 5 miles (air) southeast of Jonesville on the ridge running eastwards from the peak of Snow Mountain. 2103 Comment
  SEINET10510827  Aira elegantissima Watts 1974-5-1 Watts 30 Butte Found un upper Bidwell Park, Chico, near Horseshoe Lake. Comment
  CAS-BOT-BC131911  Allium John Thomas Howell 1955-6-15 30514 Butte West Branch of North Fork of Feather River 182 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
  CHSC27792  Allium amplectens Rod Bunday 1978-4-25 16 Butte Ca. 200 ft w of Cohasset Rd ca. 12 mi ne of East Ave. between Chico and Cohasset. 304 Comment
  CHSC90189  Allium amplectens Jody Henderson 1989-4-25 5 Butte 100 yds n of Rock Creek, 6 mi. n of Chico, Hwy 99 n to Meridian to Kilkare Ln., 100 yds s of Kilkare Ln. 72 Comment
  UCSC000150  Allium amplectens Kate Conger 1907-1 s.n. Butte Brush Creek Comment
  CAS-BOT-BC460737  Allium amplectens Lowell Ahart 1980-6-19 2384 Butte Along Swedes Flat Road, near Bangor. Comment
  SEINET12053364  Allium amplectens Unknown 5 s.n. Butte Chico Comment
  SEINET3883765  Allium amplectens D. W. McNeal 1974-4-24 1426 Butte Along Hwy. #70, 4.4 mi. s. of the Oroville Dam Exit (Hwy. #126).; 0 Comment
  SEINET5641950  Allium amplectens Linda M. Barker 1974-4-20 144 Butte Chico Quad. Skyway Road, one mile east of Hwy. 99.; 0 61 Comment
  SEINET8112090  Allium amplectens W. Roderick 1967-4-15 s.n. Butte SW of Paradise. 457 Comment
  UC600453  Allium campanulatum H. F. Copeland 1930-7-19 1330 Butte Jonesville 1524 Comment
  CAS-BOT-BC466719  Allium cratericola Jokerst 1985-3-24 4863 Butte Near Lint Road, north of Yankee Hill. West of Lunt Road and Highway 70 550 Comment
  RSA770536  Allium jepsonii S. Mashayekhi, M. Biabani 2010-6-11 SM 061 Butte 0.29 miles north on Andy Mt. Road with its junction of Hwy 70. West side of road. 955 Comment
  RSA32794  Allium membranaceum A. A. Heller 1938-5-28 15113 Butte Along the Feather River Highway east side of Jarboe Pass, 22 miles from Oroville. 610 Comment
  CHSC42220  Allium peninsulare J. P. Arts 1986-4-19 3 Butte Ca. 4 mi. s of Centerville, ca 7 mi ne of Chico. 234 Comment
  SEINET12048118  Allium sanbornii M. Ownbey, Ownbey, G. B. 1946-1 2948 Butte Hwy. 24, 21 mi NE of Oroville, just beyond Yankee Hill Rd Comment
  CAS-BOT-BC476715  Allium validum E. B. Copeland 1930-7-21 407 Butte Jonesville 1500 Comment
  CHSC35100  Allophyllum integrifolium R. A. Schlising 1980-7-16 3911 Butte NE of Butte Meadows and SW of Jonesville, near Cherry Hill Campground. At Butte Creek streamside. Comment
  CHSC35102  Allophyllum integrifolium R. Schlising; R. Banchero 1980-7-31 3944 Butte N end of Snag Lake. 1725 Comment
  SEINET10496947  Allophyllum integrifolium Lowell Ahart 1983-8-16 Ahart 4298 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
  CHSC5944  Alnus rhombifolia M. MacArthur 1968-6-17 174 Butte Location: Hanging over SW edge of Big Chico Creek Ne of Dining Hall, Chico State College Campus. 60 Comment
  UC436297  Alopecurus aequalis E. B. Copeland August, 1930 Butte above Jonesville Jonesville 1650 Comment
  RSA299120  Alopecurus carolinianus L. Ahart 1977-4-19 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  CAS-BOT-BC137935  Alopecurus saccatus A. A. Heller 1902-5-3 5445 Butte Near Nelson. Comment
  CHSC29717  Alopecurus saccatus J. D. Jokerst; T. B. Devine, D. Greenstein 1979-5-18 427 Butte Top of North Table Mt, ca 1.0 mi n of jct of e edge of Mt and Cherokee Rd. 381 Comment
  CHSC30543  Alopecurus saccatus J. D. Jokerst 1980-3-20 484 Butte E of Chico, 0.3 mi E of El Monte Ave, between Hwy 32 and Humboldt Rd. Comment
  CHSC54352  Alopecurus saccatus Lowell Ahart 1991-5-16 6654 Butte Peter Ahart Ranch, about 2 1/4 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC8197  Alopecurus saccatus Dave Isle 1969-4-18 373 Butte 6 1/2 miles N. of Oroville on Cherokee Road (about 500 + yards W. of road on Table Mtn.) 289 Comment
  UC1586628  Alopecurus saccatus Lowell Ahart 1991-5-16 6654 Butte ca. 12 mi. s. of Oroville (ca. 2 1/4 mi. n. and 1/2 mi. e. of Honcut, Peter Ahart Ranch); Peter Ahart Ranch 36 Comment
  UCD55916  Alopecurus saccatus H. A. Hannesson; R. N. Raynor 1941-5-9 s.n. Butte 4 miles N of Gridley. Comment
  JEPS120614  Amaranthus albus Lowell Ahart 2013-11-13 19227 Butte Below the high water line of Lake Oroville, along the sides of Sucker Creek, about 30 yards north of the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. Comment
  UCD97101  Amaranthus albus L. Ahart 1982-7-10 3671 Butte 1/4 mi se of Graylodge HQ, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. Comment
  SEINET10937690  Amaranthus albus Lowell Ahart 1985-11-7 Ahart 5228 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
  CHSC37532  Amaranthus blitoides M. S. Taylor; L. Ahart 1982-10-11 5159 Butte Graylodge Wildlife Refuge, on n side of loop road w of HQ, 12 mi sw of Gridley. 18 Comment
  JEPS96093  Amaranthus blitoides Vernon H. Oswald and Lowell Ahart 1996-6-10 7751 Butte US Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. On the E side of Fish Camp, Riparian Sanctuary. 28 Comment
  CHSC51248  Amaranthus californicus Lowell Ahart 1990-9-30 6602 Butte Along the edges of Canyon Creek, below the high water line of Lake Oroville, below the Canyon Creek Bridge across Lake Oroville. 228 Comment
  CHSC51344  Amaranthus californicus Vernon Oswald 1990-8-14 4431 Butte West Branch of Lake Oroville, Vinon Gulch access, 0.5 mi north of Cherokee. Occasional on and along the track below the lower end of the paved launching ramp. 259 Comment
  JEPS124158  Amaranthus californicus Lowell Ahart 2015-11-7 20616 Butte About 1/4 mile south of the end of Alternate 40, Dark Canyon, about 4 miles (air) south of Highway 70, about 8 miles (air) southeast of Paradise. Comment
  UCSB64012  Amaranthus deflexus Ahart, Lowell 1982-7-10 Butte Near a small building in the parking area at the Gray Lodge check in station, about 12 miles south-west of Gridley 30 Comment
  CHSC38258  Amaranthus retroflexus Vernon Oswald 1983-6-27 769 Butte Upper Bidwell Park, Chico, at the edge of the Horse Arena. Growing in disurbed area along the edge of the parking lot. 79 Comment
  CHSC94650  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
  UCD128817  Ambrosia psilostachya A. A. Heller 1914-8-11 11759 Butte Chico-Hamilton road, 6 miles from Chico. Comment
  UC726481  Amelanchier utahensis A. A. Heller 1919-5-17 13156 Butte near Stirling (Feather River); Feather River 975 Comment
  CHSC47437  Ammannia coccinea Lowell Ahart 1974-11-9 676 Butte Peter Ahart Ranch, about 2 1/4 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  UCR136869  Ammannia coccinea Beecher Crampton 1957-9-17 4631 Butte Sacramento Valley, 5 miles northwest of Biggs, Biggs Rice Experiment Station [955 Butte City Hwy, Hwy 162, 2.5 mi. west of Hwy 99] 30 Comment
  CHSC26653  Ammannia robusta M. S. Taylor 1977-11-10 1527 Butte Ca. 1 mi e of jct of Nelson West Rd and Chico-Butt Hwy, on n side of Nelson-West Rd in large drying creek, ca. 23 mi s of Chico. 30 Comment
  CDA42886  Amorpha californica L. Ahart 2012-5-12 18027 Butte North side of a deep drainage, north of the large meadow, northeast of the old homestead, about 300 yards southwest of Ten Mile House road, about 1/2 mile (air) west of Highway 32, south part of Upper Bidwell Park, about 9 miles (air) northeast of Chico. Comment
  CHSC3876  Amsinckia intermedia Susan Carrauthers 1966-3-14 63 Butte Ca. 4 mi N.W. of city of Chico on Highway 32 next to Lindo Channel. Comment
  UCD119727  Amsinckia lycopsoides A. A. Heller 1914-4-21 11310 Butte Chico. Comment
  CHSC42004  Anaphalis margaritacea Lowell Ahart 1975-9-4 972 Butte Along the South Fork of the Feather River, about 1/2 mile north of Golden Trout Crossing, about 15 miles north of Feather Falls. 762 Comment
  UCD56063  Andropogon glomeratus var. pumilus Bellue 1942-3-17 s.n. Butte About 2 miles SE Oroville. Comment
  POM197048  Angelica breweri H. F. Copeland 1928-8-18 1065 Butte Neighborhood of Jonesville 1524 Comment
  UC1122893  Angelica breweri P. L. Johannsen 1936-7-21 957 Butte 1 1/2 mi ese of Chaparral House (Lassen National Forest); Lassen National Forest 1645 Comment
  CHSC48969  Antirrhinum cornutum Vernon Oswald 1986-7-22 2216 Butte Hwy 32, 1.2 mi n of Chico Creek near the spring. 1097 Comment
  RSA505433  Antirrhinum cornutum R. C. Bacigalupi, Howard Whisler 1957-7-26 6041 Butte Along Humbug Road, 3.1 miles below and south of Nimshew. 366 Comment
  JEPS98474  Antirrhinum vexillocalyculatum subsp. intermedium Lowell Ahart 2000-5-31 8423 Butte 3 mi SE of Paradise (200 yds E of where Kunkle Creek enters Lake Oroville, E of Kunkle Power House) 335 Comment
  CHSC12931  Aphyllon epigalium subsp. epigalium K. D. Cox 1974-6-1 188 Butte Found in yard at 1332 Elliott Rd., Paradise. 609 Comment
  CHSC51049  Apocynum androsaemifolium Pauleen Broyles 1987-5-21 1042 Butte Bike path N and S of Elliott Road, in Paradise. Comment
  SFV2781  Apocynum androsaemifolium M. L. Vincent 1960-7-16 107 Butte Sierra Nevada Paradise. Lot south of 5330 Harrison Road. 515 Comment
  CHSC38260  Apocynum cannabinum Vernon Oswald 1983-6-2 604 Butte Upper Bidwell Park, Chico, at the e end of Yahi Trail. 207 Comment
  CAS-BOT-BC392106  Aquilegia formosa Lowell Ahart 1984-6-10 4703 Butte Along the road about 2 miles south-west of the Forbestown Diversion Dam, north-east of Forbestown 700 Comment
  CHSC46839  Aquilegia formosa var. truncata Kirsten Tarp 1982-7-18 214 Butte N part of county near Snow Mt. 2072 Comment
  CHSC52457  Aquilegia formosa var. truncata Kirsten Tarp 1982-7-16 207 Butte Crane Valley; streamlike on rocks, in opening of Fir Forest. 1560 Comment
  SEINET10448429  Arabis sparsiflora var. arcuata Lowell Ahart 1983-5-28 Ahart 4017 Butte Along trail to Feather Falls, ca. 5 mi n of the town of Feather Falls. Yellow Pine Forest; 600 m. 600 Comment
  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
  CHSC39785  Arbutus menziesii Eloise Gallatin 1935-5-19 Butte Lake Madrone. Comment
  UC463026  Arceuthobium campylopodum E. B. Copeland 1931-7-13 Butte Big Summit Jonesville 640 Comment
  UC600690  Arceuthobium campylopodum E. B. Copeland July 1929 Butte Jonesville 487 Comment
  CAS-BOT-BC409922  Arceuthobium campylopodum Lewis S. Rose 1931-1-2 s.n. Butte Bangor Comment
  CAS-BOT-BC409928  Arceuthobium campylopodum V. Oswald; Lowell Ahart 1988-7-29 3633 Butte along the road connecting Humboldt and Humbug Roads at a point 0.9 miles W of Humbud Road, ca. 3 miles E of Jonesville 1804 Comment
  CAS-BOT-BC56916  Arctostaphylos Walter Knight; Irja Knight; Tiffany Knight 1988-7-24 6301 Butte Magalia near junction of The Skyway and Pentz Road 289 Comment
  RSA629063  Arctostaphylos Jon E. Keeley 1983-6-27 7817 Butte Highway 70 and Magolia Pentz Road. Comment
  CAS-BOT-BC24415  Arctostaphylos manzanita subsp. manzanita A. A. Heller 1914-2-16 s.n. Butte Table Mountain 8 mi. n. of Oroville. Comment
  CAS-BOT-BC38827  Arctostaphylos manzanita subsp. manzanita Lewis S. Rose 1945-5-12 45033 Butte Richardson Springs 304 Comment
  CAS-BOT-BC38868  Arctostaphylos manzanita subsp. manzanita John Thomas Howell 1975-6-15 51111 Butte Paradise, Skyway and Wagstaff Road 609 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
  CHSC48369  Arctostaphylos manzanita subsp. manzanita Vernon H. Oswald 1983-2-2 59 Butte Arroyo Chico. Upper Bidwell Park, Chico, trail along creek between Alligator Hole (Parking area G) and Day Camp (Parking Area H). 91 Comment
  JEPS115252  Arctostaphylos manzanita subsp. manzanita Lowell Ahart, John Dittes, Steve Green 2009-1-17 15468 Butte On the north side of Humboldt Trail, about 50 yards south of Guardian Rock Trail, Upper Bidwell Park, about 300 yards west of Highway 32 330 Comment
  UC725305  Arctostaphylos mewukka A. A. Heller 1940-2-6 15491 Butte Neal Rd at Game Refuge above Bowle's Mansion; Paradise Comment
  UC725752  Arctostaphylos mewukka A. A. Heller 1941-12-17 16337 Butte Neal Rd 3 mi below Paradise Comment
  UC725989  Arctostaphylos mewukka A. A. Heller 1942-3-1 16383 Butte three mi below Paradise (on Pentz-Magalia road) Comment
  UC726642  Arctostaphylos mewukka A. A. Heller 1942-1-29 16356 Butte on State Hwy 32 near Lone Pine Forestry Station (14 mi e of Chico) Comment
  JEPS119557  Arctostaphylos mewukka subsp. mewukka Lowell Ahart 2012-2-22 17751 Butte On the south side of Ten Mile House Road, about 1/2 miles west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  CAS-BOT-BC38561  Arctostaphylos mewukka subsp. truei Lewis S. Rose 1955-6-15 55103 Butte 6 mi. SE. of Paradise on pentz Road. 426 Comment
  CAS-BOT-BC38605  Arctostaphylos mewukka subsp. truei Wayne Roderick 1981-7-19 s.n. Butte 3 miles n.e. of Magalia Comment
  CHSC41235  Arctostaphylos mewukka subsp. truei J. D. Jokerst 1984-8-15 2145 Butte Backbone of first ridge east of Camp Creek in the canyon of the North Fork Feather River. Comment
  SBBG103606  Arctostaphylos mewukka subsp. truei J. T. Howell 1976-4-2 51569 Butte Paradise 609 Comment
  UC726236  Arctostaphylos mewukka subsp. truei A. A. Heller 1940-2-19 15501 Butte on the Neal Road w Optimo Lodge (between Paradise and Magalia) Comment
  CHSC99887  Arctostaphylos nevadensis James I. Mallory 1969-10-2 362 Butte 1 mile east of Quartz Hill, 1 mile south of Fall River Campground in abandoned logging road. Just north of the center of the section. 1127 Comment
  SD3597  Arctostaphylos nevadensis E. B. Copeland 1931-6-22 Butte Jonesville, on ridge east of the Summit. 2100 Comment
  SEINET10973498  Arctostaphylos patula Mary Susan Taylor 1980-5-8 Taylor 2602 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
  CAS-BOT-BC47390  Arctostaphylos viscida subsp. viscida Lowell Ahart 1975-4-1 s.n. Butte Near Feather Falls. 396 Comment
  CHSC21776  Arctostaphylos viscida subsp. viscida Robert A. Schlising 1974-9-17 3158 Butte Along Hwy 32, 9.4 mi NE of junction with Hwy 99 in Chico. Comment
  CHSC35047  Arenaria kingii var. glabrescens R. A. Schlising 1981-6-28 4115 Butte NE part of county, E of Stirling City and W of Little Kimshew Creek at white Table Mountain. 1828 Comment
  SEINET10507232  Aristida hamulosa Lowell Ahart 1983-8-16 Ahart 4277 Butte T22N R2E sec 14? Along Hwy 32, ca. 1 mi e of Chico. Valley Grassland; 100 m. 100 Comment
  CHSC108045  Aristida oligantha L. P. Janeway 2011-10-12 10772 Butte Cascade Range Foothills/Sacramento Valley. Upper Bidwell Park, Chico; 1.0 km southwest of Horseshe Lake, along Upper Park Road at the road to Five Mile Recreation Area, north side of Big Chico Creek. 91 Comment
  RSA718156  Aristida oligantha L. Ahart 2006-10-13 13504 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 1/8 miles east of Honcut, about 12 miles southeast of Oroville. 34 Comment
  UCD56442  Aristida oligantha R. Tofsrud 1947-7-1 241 Butte 7 miles north of Oroville. Comment
  UCD56476  Aristida oligantha Beecher Crampton 1963-9-9 6882 Butte 3.5 miles east of Honcut, La Porte Road. Comment
  SEINET10512738  Aristida oligantha Mary Susan Taylor 1977-8-16 Taylor 1434 Butte On S side of Pentz Rd, near culvert in natural drainage, ca 1.2 e of jct of Pentz Rd & Hwy 99, ca 15 mi S of Chico. 61 Comment
  CHSC108862  Aristolochia californica Lowell Ahart 2012-2-22 17756 Butte Climbing on a fence, along the short trail to Ten Miles House Road, about 50 feet from Highway 32, about 9 miles northeast of Chico. 469 Comment
  CHSC38262  Aristolochia californica Vernon Oswald 1983-3-4 107 Butte Upper Bidwell Park. Brush beside Upper Park Rd. at the power lines. 97 Comment
  POM165725  Aristolochia californica E. B. Copeland 1903-4-10 s.n. Butte Chico Comment
  UCD137818  Aristolochia californica K. L. McElroy 1968-4-13 37 Butte Table Mountain. 243 Comment
  UCD129211  Arnica longifolia Robert E. Preston 1982-7-21 352 Butte Philbrook Creek, where dirt road crosses creek ca. 0.25 mile east of Philbrook Reservoir. 1688 Comment
  CAS-BOT-BC90288  Artemisia douglasiana A. A. Heller 1916-9-23 12661 Butte near Forest Ranch Comment
  CHSC109058  Arum Lowell Ahart; Linnea Hanson, Kaline Le Coq, Josephine Guardino 2012-4-27 17904 Butte On the north side of Big Chico Creek, south of the path, near the sign, southwest of the intersection of Vallombrosa Avenue and Manzanita Avenue, Lower Bidwell Park, Chico. 80 Comment
  JEPS104737  Asarum hartwegii John L. Morrison 1940-5-19 3163 Butte 5.9 mi from Flea Valley; along Ponderosa Way 900 Comment
  SFV11162  Asarum hartwegii M. L. Vincent 1963-6-7 384 A Butte Paradise Dam, 4 miles north of Paradise. 760 Comment
  SBBG17264  Asclepias cordifolia M. Vincent 1962-4-19 212 Butte Humbug Rd, 3 mi NE of Centerville Comment
  CHSC4692  Asclepias eriocarpa R. Carter 1966-7-6 465 Butte Found ca. 7 mi. E of Oroville on e side of Feathervale .25 mi. S of intersection with Wyandotte-LaPorte Rd. 243 Comment
  CAS-BOT-BC68881  Aspidotis californica Judy Wheeler 1980-3-19 6 Butte Ca. 16.5 mi. E of Oroville on S side of Lumpkin Rd, 150 yd upstream on McCabe Creek 384 Comment
  HSC66084  Aspidotis carlotta-halliae M. S. Taylor 1979-3-19 1927 Butte In the vicinity of Pulga bridge over Feather River on Hwy. 70, 25 mi. NE of Oroville 488 Comment
Read comments
Mar 28 2013
  CHSC24899  Aspidotis densa P. Laherty 1976-4-4 19 Butte Scattered on the n side of Ponderosa Way, ca. 4 mi w of junc of Ponderosa Way and Hwy 32, ca. 22 mi ne of Chico. 426 Comment
  CHSC27993  Aspidotis densa M. S. Taylor 1978-7-18 1686 Butte On n side of Old Humboldt Rd, ca. 1 mi e of jct of Old Humboldt Rd and Hwy 32. 1326 Comment
  CHSC32688  Aspidotis densa M. S. Taylor 1981-3-18 3423 Butte W side of West Branch Feather River, ca. 100 ft s of Ponderosa Way bridge crossing, ca 1 mi ne of Magalia. 487 Comment
  JEPS110230  Aspidotis densa Lowell Ahart 2006-7-16 12965 Butte Deep road cut, west of the open mudflow area, on the south side of Humboldt Road, about 1 1/2 miles (air) southwest of Butte Meadows 1435 Comment
  UC474223  Aspidotis densa H. F. Copeland 1920-8-2 200 Butte Jonesville 1600 Comment
  HSC66087  Aspidotis densa M. S. Taylor 1980-3-8 2373 Butte 100 ft. SW of Pulga bridge over Hwy. 70 28 mi. NE of Oroville 488 Comment
  SEINET10475264  Aster alpigenus subsp. andersonii Mary Susan Taylor 1978-6-24 Taylor 1667 Butte Montane Meadow, on N side of Old Humboldt Road, across the road from Butte Meadows; Yellow Pine Forest. 1372 Comment
  RSA32898  Aster subulatus var. parviflorus A. A. Heller 1923-10-13 13828 Butte Near Richvale Comment
  CHSC103968  Astragalus gambelianus Lowell Ahart 2010-5-7 16611 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
  HSC93425  Astragalus gambelianus L. Ahart 1995-5-30 7577 Butte N Table Mtn., about 7 mi. N of Oroville, about 2 mi. NW of Cherokee Rd., 1/10 mi. SE of the reservoir. 305 Comment
  CAS-BOT-BC192801  Astragalus pauperculus A. A. Heller 1938-4-3 15013 Butte Summit of Table Mountain 304 Comment
  CHSC43861  Astragalus pauperculus Vernon Oswald 1988-3-14 3253 Butte Harter's Cherokee Ranch is located on the w side of Hwy 99 between Hwy 149 and Dry Creek. Along the Hwy 99 fence line near the north tip of the ranch. 71 Comment
  RSA481897  Astragalus pauperculus Aaron Liston 1988-3-15 694 -1 Butte 15 km (air) SE of Chico; 1/4 mile S of Pentz Rd., 1/8 mile E of Hwy 99. 55 Comment
  NY5727  Astragalus tener var. bruceae Mrs. C. C. Bruce 03 1898 2430 Butte Plains. Comment
  CDA26750  Astragalus tener var. ferrisiae L. Ahart 2001-4-15 8721 Butte About 15 feet southeast of the large pump, on the south side of Evans-Reimer Road, about 1 mile east of Pennington Road, Gray Lodge Waterfowl Management Area, about 4 miles (air) southwest of Gridley. Comment
  JEPS102548  Astragalus tener var. ferrisiae Lowell Ahart 2001-4-15 8721 Butte About 15 feet southeast 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
  SBBG28169  Athyrium filix-femina var. cyclosorum E. B. Copeland 1929-7-29 Butte Jonesville 1600 Comment
  CHSC11383  Athysanus pusillus Lowell Ahart 1969-3-27 Butte Peter Ahart Ranch, Honcut. 45 Comment
  UCD56132  Avena barbata P. B. Kennedy 1914-5-1 4752 Butte Grade to Paradise. Comment
  JEPS115991  Avena fatua Lowell Ahart 2009-5-8 15665 Butte On the south side of the gravel road, about 10 yards east of Cedar Grove Parking Area in Lower Bidwell Park, Chico 67 Comment
  CHSC43601  Azolla filiculoides Vernon Oswald 1987-4-30 2361 Butte Butte Creek Reserve on the s side of Butte Creek, ne of the Skyway. 80 Comment
  CHSC79632  Azolla filiculoides Lowell Ahart 2001-1-26 8718 Butte On the east side of the parking lot, on the north side of Rutherford Road, about 1/4 mile west of Pennington Road, Gray Lodge Waterfowl Management Area, about 6 miles (air) southwest of Gridley. 21 Comment
  CAS-BOT-BC66254  Azolla mexicana M. S. Taylor; L. Ahart 1982-10-11 5162 Butte Pennington quad. Graylodge Wildlife Refuge, m side of Rutherford Rd, ca. 1/2 mi e of Pennington Rd, 21 Comment
  CHSC59166  Azolla microphylla Vernon H. Oswald 1992-9-21 5218 Butte SE corner of Llano Seco, in a ditch crossing Seven Mile Lane ca. 0.25 mi N of Nelson West Rd. 30 Comment
  CHSC115409  Baccharis pilularis M. Rogers 2013-5-4 Butte Pine Creek Unit of SRNWR near Hwy 32. 39 Comment
  CHSC97721  Baccharis pilularis Lowell Ahart 2007-10-30 14508 Butte Both sides of the water ditch, north side of Lower Wyandotte Road, about 2 1/2 miles (air) northeast of Palermo, about 4 1/4 miles (air) southeast of Oroville. 129 Comment
  UC1594585  Balsamorhiza deltoidea Vernon H. Oswald and Lowell Ahart 1992-3-24 4891 Butte .2 mi n of, (n side Thermalito Diversion Pool, along 1st stream w of spillway) Burma Rd.; Lake Oroville Recreation Area 76 Comment
  UC600734  Balsamorhiza sagittata H. F. Copeland 1932-6-29 Butte Jonesville 2000 Comment
  SEINET10448247  Barbarea orthoceras Mary Susan Taylor 1975-8-31 Taylor 892 Butte Riparian Woodland, on Ernies Island in Butte Creek, ca. 50 ft S of Humboldt Rd, ca. 0.5 mi E of Butte Meadows. 1341 Comment
  SD48506  Barbarea verna E. K. Balls 1957-5-22 22517 Butte Southwest shore, Lake Almanor, just beyond Big Meadows Dam. 1399 Comment
  UCD169795  Bellis perennis L. P. Janeway 2011-4-6 10362 Butte Sacramento Valley. City of Chico; in the lawn between Bidwell Mansion, Modoc Hall (Calif. State Univ., Chico), and Sol-Wil-Le-No Ave. 60 Comment
  CAS-BOT-BC75953  Berberis pumila A. A. Heller 1962-6-15 37515 Butte Sierra Nevada. Magalia. 731 Comment
  CAS-BOT-BC102075  Bidens frondosa Lowell Ahart 1983-9-17 4433 Butte At Dunkle Res., near Paradise 600 Comment
  CHSC44048  Bistorta bistortoides L. P. Janeway 1987-6-26 2322 Butte SW end of Logue Meadows. 1325 Comment
  CHSC4653  Blennosperma nanum R. Carter 1966-3-22 308 Butte Found ca. 5 mi NE of Oroville on top of Table Mountain; growing 15 yds off E side Old Cherokee Rd. 5.5 mi from Chico Rd. Comment
  UC478515  Boechera platysperma E. B. Copeland 1931-6-19 643 Butte Jonesville 1550 Comment
  UC600709  Boechera platysperma H. F. Copeland 1932-8-16 Butte Jonesville 1500 Comment
  RSA475190  Boisduvalia cleistogama Aaron Liston, Sara Meury 1988-5-28 743 -6 Butte 15 km (air) SE of Chico. 1/4 mi. S of Pentz Rd., 1/8 mi. E of Hwy 99 55 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
  RSA166329  Boisduvalia glabella D. M. Moore 1960-6-1 89 Butte 1.1 mile W of U.S. 40A on road to Honcut Comment
  RSA715559  Boisduvalia stricta L. Ahart 2005-5-11 11795 Butte South part of North Table Mountain, about 200 yards northwest of the poor dirt road off of Cherokee Road, about 200 yards south of the rim into Beatson Hollow, about 7 miles (air) north of Oroville. 359 Comment
  UCD150349  Bolboschoenus fluviatilis E. Littrell 1972-4-27 s.n. Butte Gray Lodge Wildlife Management Area. Comment
  CHSC36842  Bolboschoenus glaucus M. S. Taylor 1982-5-22 4503 Butte Graylodge Waterfowl Refuge, in vicinity of parking lot 6, on Rutherford Rd, ca. 1/2 mi e of its jct with Pennington Rd, ca. 12 mi sw of Gridley. 21 Comment
  CHSC45122  Bolboschoenus glaucus Vernon Oswald 1985-5-8 1751 Butte Graylodge Waterfowl Management Area near Parking Lot #5 on Rutherford Rd. Comment
  CHSC66684  Bolboschoenus maritimus Vernon H. Oswald; Lowell Ahart 1996-7-22 8095 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Seasonal marsh in the NE corner of Tract 1.1, Sanctuary II. 33 Comment
  UC1472740  Botrychium multifidum Mrs. Carlotta C. Hall 1914-7-30 9805 3-a Butte Jonesville 1524 Comment
  RSA0036437  Brachypodium distachyon L. P. Janeway 2012-4-29 10806 Butte Cascade Range Foothills. Upper Bidwell Park, Chico; along South Rim Trail, upper slope overlooking Big Chico Creek from the south; about 1.8 km east of the powerlines. 183 Comment
  SEINET10448435  Brassica geniculata Mary Susan Taylor 1975-10-29 Taylor 974 Butte Butte Creek, ca. 2-500 yds S of Humbug Road, ca. 2 mi E of junction of the Skyway and Humbug Road; with Platanus racemosa, Rhus trilobata. Comment
  SEINET10448437  Brassica geniculata Lowell Ahart, Peter Ahart 1984-6-10 Ahart 4689 Butte Along edge of a new subdivision road ca. 1 mi SE of Hurleton, 1/12 mi E of Oak Grove Cemetary, ca. 10 mi E of Oroville; Foothill Woodland; 500 m. 500 Comment
  CHSC38059  Brassica oleracea var. gemmifera R. E. Preston 1982-3-25 198 Butte In a garden in Chico. Comment
  CHSC43959  Brassica rapa Vernon Oswald 1988-6-2 3350 Butte Soda Springs Campground on the e side of Hwy 32 n of Lomo. On the edge of Cascade Creek at the campground. 1139 Comment
  CHSC58285  Briza maxima Lowell Ahart 1992-5-9 6767 Butte On the west side of a small stream, east of Cherokee Road, Lake Oroville Recreation Area, about 2 (air) miles north of Oroville. 91 Comment
  CHSC89035  Briza maxima A. Peterson 2003-5-6 75 Butte Southeast of Chico, Pentz Rd near jct with Magalia Hwy, on road shoulder. 213 Comment
  SEINET10967594  Briza minor A. Arthur Heller, H. E. Brown 1902-5-6 Heller 5475 Butte Berry Canyon (near Clear Creek). Comment
  SEINET201433  Brodiaea californica Rimo Bacigalupi, G. Bacigalupi; Heckard Sanderson 1952-6-20 3752 Butte Along road from Oroville to Forbestown 1.2 miles west of Hurleton 442 Comment
  SD48546  Brodiaea californica subsp. californica E. K. Balls 1957-5-23 22531 Butte U.S. Highway 99E, 1.7 miles northwest from junction with road from Pentz. Open grassland. 91 Comment
  CHSC75412  Brodiaea californica var. californica Jennifer Slater 1997-4-20 29 Butte At the Wurlitzer addition of the Vina Plains Preserve, west of Highway 99, approx. 10 miles north of Chico. 94 Comment
  UC143058  Brodiaea californica var. californica Mrs. R. M. Austin May 1896 45 Butte Iron Canyon Comment
  CHSC90224  Brodiaea elegans subsp. elegans Robert Kissane 1989-5-12 2 Butte East side of Bruce Road, ca. 500 m s of Humboldt Road, Chico. 80 Comment
Read comments
Jun 17 2014
  SEINET3884982  Brodiaea multiflora Margaret J. Williams, W. Roderick 1984-5-25 84- 22 -4 Butte Magalia, near skyline road to Paradise.; 0 168 Comment
  SEINET3885151  Brodiaea multiflora D. W. McNeal, Todd McIntyre 1989-4-18 3368 Butte Along the rd. bank beside Hwy. #70. 4.5 mi. s. of the jct. of Hwy #162 in Oroville.; 0 Comment
  UCD22630  Brodiaea pulchella Joseph Laferriere 1982-4-18 4 Butte Table Mountain, NW of Cherokee Rd., 5 miles north of Oroville. 396 Comment
  CAS-BOT-BC484590  Brodiaea purdyi H. C. Cantelow 1940-5-10 3913 Butte s.w. of Oroville Hwy 24 Comment
  SEINET10533863  Brodiaea volubilis A. Arthur Heller 1913-3-28 Heller 10765 Butte Ditch along Table Mountain 8 miles north of Oroville. 600 feet. Comment
  SEINET10508554  Bromus alopecuros Lowell Ahart 1985-5-9 Ahart 4939 Butte Peter Ahart Ranch, about 1 mile north and 1/4 mile east of Honcut, about 12 miles south of Oroville. Comment
  CHSC4301  Bromus catharticus V. Hagaman 1966-5-21 Butte Bare Hole about 20 ft. above the stream up the side of the bank. Comment
  CAS-BOT-BC155461  Bromus hordeaceus Lowell Ahart 1982-6-4 3549 Butte Sierra Nevada. On a lava cap, ca. 1.5 mile east of Camp 18, ca. 8 miles east of Feather Falls. 1000 Comment
  CHSC31946  Bromus hordeaceus J. D. Jokerst 1979-4-20 1211 Butte Top of North Table Mt., ca. .75 mi N of Cherokee Rd. 396 Comment
  JEPS117561  Bromus hordeaceus Lowell Ahart 2010-6-20 16816 Butte Under the government pole line, about 20 yards south of the pole, about 50 yards north of Wyandotte Creek, about one mile east of Palermo Honcut Highway, Guidci Ranch, about 7 miles (air) southeast of Oroville 64 Comment
  CAS-BOT-BC162465  Bromus laevipes Lowell Ahart 1985-5-15 1471 Butte 1.5 mile northeast of Concow Res.East of the dirt road, about 1.5 mile northeast of Concow Res. 800 Comment
  SEINET3923094  Bromus laevipes Lowell Ahart, Peter Ahart 1984-6-10 4699 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown; Yellow Pine Forest.; 0 700 Comment
  CAS-BOT-BC162359  Bromus madritensis John Thomas Howell 1962-6-15 37490 Butte Sierra Nevada. Magalia. 731 Comment
  JEPS110237  Bromus madritensis subsp. madritensis Lowell Ahart 2006-5-10 12622 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
  CHSC88273  Bromus orcuttianus Lowell Ahart 2004-7-11 11232 Butte Along the road, on the northeast edge of Paradise Lake, about 3/4 mile northeast of the picnic area, about 1 mile northeast of Paradise Dam, about 4 miles (air) southwest of Stirling City. 814 Comment
  JEPS110320  Bromus orcuttianus Lowell Ahart 2006-7-25 13054 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
  CHSC49516  Bromus racemosus Vernon Oswald 1988-5-18 3318 Butte Honey Run Rd. 0.7 mi sw of the Skyway, Paradise. On the edge of the road. 426 Comment
  SEINET10791270  Bromus rubens M. Coulon 1974-4-29 Coulon 44 Butte Located approx. 80 ft. from intersection of East Ave. and Mariposa Ave on the NE side of Mariposa Ave., Chico. Along a roadside ditch. Soil very moist. Associates: Hordeum sp., Bromis mollis and Brassica sp. 61 Comment
  CAS-BOT-BC161612  Bromus sterilis Lowell Ahart 1977-6-16 1474 Butte Peter Ahart Ranch, Honcut. North Honcut Creek. 50 Comment
  CAS-BOT-BC161618  Bromus sterilis Lowell Ahart 1980-5-17 2292 Butte 0.5 mile southeast of Hurleton. 600 Comment
  CDA31949  Bromus sterilis L. Ahart 2009-4-26 15614 Butte East edge of a small open meadow, about 150 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico Comment
  JEPS87443  Bulbostylis capillaris Lowell Ahart 1993-7-29 7117 Butte 2.5 mi ne Bald Mountain (about 6.5 mi ne of Stirling City) 1584 Comment
  CHSC101090  Calandrinia ciliata Lowell Ahart; John Dittes 2009-3-20 15512 Butte Open area west of the Guardian Rock Trail, about 175 yards southwest of the Ten Mile House Road Trail, about 300 yards west of Highway 32, west of the intersection of Highway 32 and Ten Mile House Road, Upper Bidwell Park, about 10 miles northeast of Chico. 407 Comment
  RSA521825  Callitriche heterophylla Vernon H. Oswald 1988-5-19 3324 Butte Portion of Rancho Bosquero; Feenstra's Riverview Orchard located at the W end of Cana Hwy between the S half of Cana Lake (on Dicus Slough) and the Sacramento river. 46 Comment
  CHSC12181  Callitriche heterophylla var. bolanderi Lowell Ahart 1973-3-26 186 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC40398  Callitriche heterophylla var. bolanderi Ahart; Jokerst 1985-5-10 4946 Butte On the bottom of the east branch of Potter Ravine, about 2 1/4 miles north of Oroville Dam. 320 Comment
  JEPS95736  Callitriche heterophylla var. heterophylla Lowell Ahart 1995-5-26 7574 Butte 12 mi S of Oroville (Peter Ahart Ranch, 2 mi N and 1/4 mi E of Honcut) 36 Comment
  JEPS95760  Callitriche heterophylla var. heterophylla Lowell Ahart 1995-5-26 7574 Butte 12 mi S of Oroville (Peter Ahart Ranch, 2 mi N and 1/4 mi E of Honcut) 36 Comment
  CAS-BOT-BC80359  Calocedrus decurrens E. B. Copeland 1931-7-28 603 Butte Jonesville, on ridge west of North Willow Creek 1650 Comment
  SD36  Calocedrus decurrens E. B. Copeland 1931-7-28 Butte Jonesville, on ridge west of North Willow Creek 1650 Comment
  CHSC10610  Calochortus albus Lowell Ahart 1962-4-25 Butte Ahart Ranch, Honcut. 45 Comment
  CHSC51938  Calochortus albus C. E. Stewart 1983-4-17 1 Butte At S end of Table Mountain, 10 ft W of Cherokee-Table Mountain Rd, 5.5 mi N of Oroville. 335 Comment
  RSA377250  Calochortus albus M. Vincent 1962-4-16 200 Butte One mile W of Paradise on Honeyrun Rd. Butte Creek Canyon. Comment
  CAS-BOT-BC487515  Calochortus albus H. E. Brown 1897-4-15 s.n. Butte Near Clear Creek 53 Comment
  RSA369031  Calochortus albus J. H. Morrison 1932-5-1 s.n. Butte Durham Comment
  SEINET10971609  Calochortus leichtlinii Mary Susan Taylor 1978-7-18 Taylor 1702 Butte On top of Humboldt Peak, at Humboldt Summit, on Butte-Tehama County line. 2159 Comment
  CHSC51941  Calochortus luteus Denise Monceau 1984-4-20 4 Butte Ca 6 mi NE on Wildwood Ave, SE side of rd, 1/4 mi NE on trail. 83 Comment
  CAS-BOT-BC491859  Calochortus luteus H. C. Cantelow 1940-5-10 s.n. Butte 8 1/2 miles south west of Oroville, hwy. 24 Comment
  CHSC82634  Calochortus monophyllus Tara Morgan 2002-4-23 35 Butte Found along the south rim trail located on the east side of Big Chico Creek. Located down from the green gate off of Highway 32 down the trail. On the side of the trail. 414 Comment
  UC3375  Calochortus monophyllus Carl Purdy 1821-1 Butte Chico Comment
  UCR190818  Calochortus monophyllus Ken Osborne 2007-5-13 s.n. Butte Sierra Nevada Foothills, along Ponderosa Way at Mud Creek, c. 1.5 mi. SE of Cohasset 701 Comment
  CHSC80707  Calochortus nudus R. E. Preston 1982-7-1 323 Butte Meadow; ca. 1 mi S of Humbug Summit. 1950 Comment
  CHSC44529  Calochortus tolmiei Lowell Ahart 1988-3-27 5941 Butte Along Poe Power House Road, about 1/10 mile north of the bridge across the North Fork of the Feather River, about 2 miles south-east of Jarbo Gap. 350 Comment
  CAS-BOT-BC494319  Calochortus tolmiei A. A. Heller 1913-6-7 10812 Butte near Stirling 1072 Comment
  POM219011  Caltha leptosepala E. B. Copeland 1930-06 s.n. Butte Jonesville. 1500 Comment
  UC1876193  Calycadenia fremontii Gerald D. Carr 1971-6-15 563 Butte 0.4 mi W of E boundary of Upper Bidwell Park, SE of Chico. Comment
  CAS-BOT-BC106085  Calycadenia oppositifolia R. L. Carr 1978-7-7 789 Butte NE of Chico, ca. 0.3 mi SW of N boundary of Upper Bidwell Park (Devil's Kitchen), ca. 5.6 mi NE of Manzanita Ave. 244 Comment
  CHSC29833  Calycadenia oppositifolia M. S. Taylor; R. S. Schlising, L. Ahart 1980-5-31 2753 Butte Kunkle Reservoir, on E side of Pentz-Magalia Hwy, ca. 3 mi S of Paradise. 441 Comment
  CHSC30940  Calycadenia oppositifolia L. Ahart 1980-7-4 2448 Butte Near the Oak Grove Cemetary, ca. 1/2 mi SE of Hurleton. 600 Comment
  CHSC78118  Calycadenia oppositifolia Lowell Ahart 2000-5-31 8415 Butte A serpentine ridge, about 200 yards east of where Kunkle Creek enters Lake Oroville, east of the Kunkle Power House, about 3 miles southeast of Paradise. 335 Comment
  RSA255507  Calycadenia oppositifolia Gerald D. Carr 1971-6-15 564 Butte 0.7 miles W of Paradise, south side of Chico-Paradise Hwy Comment
  UCD129789  Calycadenia oppositifolia M. Vincent 1963-6-6 374 Butte 1 mile west in Mt. Meadow from Nelson Bar Road. Comment
  UCD80040  Calycadenia oppositifolia CNPS SN Foothill Team 2005-5-4 SNFN 0201 e Butte City of Chico, Upper Bidwell Park, on the west side of Big Chico Creek, on an east-facing slope. The plot location is ~1 mile from the end of Upper Park road, and about 110 m upslope of the road. 273 Comment
  JEPS120621  Calycadenia truncata Lowell Ahart 2013-11-13 19254 Butte About 50 yards southeast of the Ponderosa Dam spillway. Comment
  POM51575  Calycadenia truncata subsp. truncata Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  CHSC99663  Calycanthus occidentalis H. Koeth 2007-4-12 Butte Chico State Campus, South of Holt Hall (below walking bridge). 57 Comment
  SEINET5336314  Calyptridium paniculatum K. Conger 1907-1 s.n. Butte Brush Creek. Comment
  SEINET263497  Calyptridium umbellatum R. J. Shaw 1993-5-23 5094 Butte East of Chico at mile marker 31 of Hwy 32 1000 Comment
  CAS-BOT-BC223608  Calystegia atriplicifolia subsp. buttensis R. K. Brummitt; R. Schlising 1998-5-16 19866 Butte Between Paradise and Magalia; beside Skyway 650 Comment
  JEPS105268  Calystegia atriplicifolia subsp. buttensis Dean W. Taylor 1995-8-6 15398 Butte near Concow Reservoir (ca. 6 air miles E of Paradise) along Hoffman Road 0.3 miles West of Concow Road; Lassen National Forest 670 Comment
  JEPS109588  Calystegia atriplicifolia subsp. buttensis Dean Wm. Taylor, Tom Engstrom 2002-7-3 18213 Butte logging road ca. 0.2 miles E of Highway 32, 1.9 miles South of Lomo (road 160G 0.6 miles South of Highway 32) 1158 Comment
  RSA718789  Calystegia atriplicifolia subsp. buttensis L. P. Janeway 2006-6-25 8696 Butte Along a major dirt road 2.6 km south of Stirling City towards West Branch Feather River crossing. 1006 Comment
  UC1601755  Calystegia occidentalis var. tomentella E. B. Copeland July, 1930 Butte Jonesville Comment
  SEINET10496683  Calystegia polymorpha Mary Susan Taylor 1981-5-15 Taylor 3755 Butte T22N R5E nw sec 20, Berry Creek quad. N side of 22N84, ca. 1 air mi SW of Hungrey Hunt Peak, ca. 3 air mi S of Pulga on Feather River Hwy 70. 3300 ft. 1006 Comment
  RSA4633  Camassia leichtlinii subsp. suksdorfii E. B. Copeland 1930-6-27 408 Butte Jonesville 1550 Comment
  POM32729  Camissonia graciliflora Kate Conger 1905-1 s.n. Butte Brush Creek Comment
  CDA13228  Campanula prenanthoides G. F. Hrusa, T. D. Wilfred 1996-7-8 13075 Butte Plumas National Forest; Along Old Railroad Grade Rd. immed. above Paradise Lake dam, approx. 3 m. N of Magalia. Comment
  CHSC108863  Capsella bursa-pastoris Lowell Ahart 2012-3-2 17766 Butte On the sides of the Bloody Pin Trail, about 100 yards west of Guardian Trail, about 1/2 mile west of Highway 32, about 7 1/2 miles northeast of Chico. 304 Comment
  CHSC486  Capsella bursa-pastoris V. Holt 1935-3-20 Butte Chico. 57 Comment
  CHSC27055  Cardamine breweri Lowell Ahart 1978-5-31 1748 Butte South Fork of the Feather River. Found along the edge of the S. Fork. Found .5 mi above the Golden Trout Crossing on S Fork. Ca 4 mi west of Sly Creek Res. which is w of Strawberry Valley, Yuba County. Found only in this one area near the log bridge across the river. 750 Comment
  SD8269  Cardamine californica Mrs. R. M. Austin 1883-1 Butte Comment
  CHSC31096  Cardamine oligosperma Diane M. Reilly 1980-3-21 3 Butte 1/4 mi off Big Bend Rd on old dirt road, ca. 4 mi off Hwy 70, ca. 25 mi e of Chico. 365 Comment
  CHSC70788  Cardamine pachystigma B. Castro 1995-5-9 566 Butte Ca 10 air mi E of Oroville, across Forbestown Road from jcn with road up to Sunset Hill Lookout. within 15 ft of S edge of Forbestown Rd. 990 Comment
  CHSC32739  Cardamine pachystigma var. dissectifolia M. S. Taylor 1981-4-14 3534 Butte W side of Ponderosa Way (Rim Rd, rd to Flea Valley), ca. 6 mi n of Jarbo Gap on Hwy 70, ca. 20 air mi n of Oroville. 914 Comment
  JEPS118072  Carex Lowell Ahart 2011-7-9 17574 Butte Southeast edge of a large open bare granite area, about 3/8 mile east of Little Bald Rock, about 2 miles (air) southeast of Brush Creek, about 15 miles (air) northeast of Oroville 974 Comment
  JEPS118073  Carex Lowell Ahart 2011-8-19 17635 Butte On the south side of a good forest road, on the east side of Know-northing Creek, in low area on the north side of Lumpkin Ridge Road, about 1/2 mile southwest of the intersection of Lumpkin Ridge Road, County Road and road to Cascade, about 5 miles (air) northeast of Feather Falls 1252 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
  SEINET8986974  Carex abrupta L. Janeway, Gog, L 2008-1 3191 (A & B) Butte Near Cornelia Lott Sank Memorial Spring. Comment
  CHSC94002  Carex amplifolia R. D. Fischer 2004-6-20 782 Butte Sierra Nevada Mountains, north-east corner of Butte County and ca. 4 miles north of Butte Meadows off Scout Road. Boy Scout Camp. In drainage ditch at north end of camp where Scout Road passes through Chico Meadows. 1371 Comment
  CHSC113952  Carex angustata Lowell Ahart 2014-7-13 19643 Butte West part of a large wet meadow (some bog), about 10 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC53716  Carex angustata L. P. Janeway 1987-7-4 2417 Butte Along West Branch Feather River at bridge 1.8 mi from Inskip. 1341 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
  JEPS106373  Carex angustata Lowell Ahart 2004-7-23 11310 Butte In a small bog, on the south side of the dirt road, about 200 yards east of the large bog, about 3/8 mile (air) east of Bald Mountain Lookout, about 4 1/4 miles (air) northeast of Stirling City 1702 Comment
  CAS-BOT-BC17904  Carex angustata J. D. Jokerst 1980-10-7 1649 Butte Ca. 50 feet west of the Skyway 1.1 miles south of Innskip. 1432 Comment
  CAS-BOT-BC18049  Carex athrostachya L. P. Janeway; R. A. Schlising 1988-7-16 3037 Butte Vernal pool next to Humbug Summit Road ca. 0.8 mile west of Butte Creek House. 1805 Comment
  CHSC11936  Carex aurea E. B. Copeland 1930-6-23 608 Butte Jonesville. 1500 Comment
  SEINET10585654  Carex aurea Edwin B. Copel 1930-6-23 Copeland 608 Butte Jonesville. In wet meadows. 1500 Comment
  UCD140165  Carex barbarae John Thomas Howell 1955-9-6 30908 Butte Bank of Butte Creek east of Butte City. Comment
  CHSC48547  Carex bolanderi Vernon Oswald 1983-6-17 704 Butte Upper Bidwell Park, Chico, on the s side of Chico Creek ca. 100 ft w of Day Camp. 91 Comment
  CHSC50377  Carex bolanderi Vernon Oswald 1990-6-1 4275 Butte Butte Creek Trail, ca. 1.75 miles north-northwest of Lake De Sabla. 579 Comment
  JEPS116003  Carex bolanderi Lowell Ahart 2009-6-19 15928 Butte On wet soil, drainage in woodland, about 30 yards south of the fence and about 120 yards east of Ten Mile House Road, Upper Bidwell park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 269 Comment
  JEPS97578  Carex bolanderi R. D. Stone and W. B. Davilla 1984-5-16 604 Butte Drainage of the Little West Fork of West Branch Feather River Stirling City (0.5 mi SE of confluence of the Little West Fork and Cunningham Ravine; ca, 2 mi WSW of) Comment
  RSA767484  Carex bolanderi L. Ahart 2010-6-12 16796 Butte North side of a small stream, about 150 yards east of Ten Mile House Road, about 3/4 air miles west of Highway 32, about 9 air miles northeast of Chico. 238 Comment
  CHSC44034  Carex capitata S. C. Morey 1983-7-23 572 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  CHSC47135  Carex cyrtostachya L. P. Janeway 1988-7-2 2955 Butte Near the marsh/mdw at upper reach of Brush Creek, ca 1.5 mi S of 'town' of Brush Creek. Near the creeklet draining the marsh/mdw. 952 Comment
  RSA0034291  Carex cyrtostachya Peter F. Zika 2011-7-6 25536 Butte Pinkard Creek, below Mooreville Ridge Road, 1.2 road miles N of dam on Lost Creek Resevoir, northern Sierra Nevada Highlands. 1040 Comment
  CHSC102834  Carex densa Lowell Ahart 2009-6-3 15818 Butte About 100 yards west of the table at the old homestead and about 50 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 232 Comment
  CHSC39585  Carex densa Vernon Oswald 1983-6-7 647 Butte Upper Bidwell Park, Chico, on the north slope near the head of the stream which crosses Upper Park Rd. 0.5 mi e of the power lines. 198 Comment
  CHSC41227  Carex densa J. D. Jokerst 1985-5-11 2325 Butte Along intermittent creek that drains Box Hall Flat. Ca. 1.0 mile east of Potter Ravine, north of adjacent to to Lake Oroville. Comment
  CHSC52853  Carex densa L. P. Janeway 1987-5-20 2057 Butte Near Gold Flat and Hodap Creek; jct of Lunt Road and Nelson Bar Road. 457 Comment
  CHSC106048  Carex divulsa L. P. Janeway 2010-6-3 9989 Butte Sacramento Valley. Oroville: Centennial Plaza on top of the levee along the south side of Feather River between the north ends of Lincoln Street and Oak Street. 57 Comment
  CAS-BOT-BC422333  Carex divulsa subsp. divulsa P. F. Zika; L. Janeway 2012-5-17 25873 Butte Near Camelia Way bridge, N bank of Big Chico Creek, Chico, Sacramento Valley (ScV), Ahart's station 60 Comment
  SBBG128721  Carex divulsa subsp. divulsa L. Ahart 2012-5-25 18113 Butte NW of intersection of W Frances Willard Avenue and Arcadian Avenue, one block S of Chico High School, Chico 59 Comment
  CHSC50350  Carex echinata subsp. echinata Vernon Oswald 1990-5-14 4209 Butte Small lake located ca. 1 mile south of Brush Creek. 996 Comment
  CAS-BOT-BC20001  Carex feta J. D. Jokerst 1984-5-19 2025 Butte At the edge of Highway 70. Comment
  CHSC105486  Carex feta B. Castro 2010-6-19 100028 Butte Northern High Sierra Nevada. Along Bean Creek Road 0.4 km northwest of spur road to Dome Trail trailhead; 1.2 km south-southwest of Bald Rock Dome; on ridge between Middle Fork Feather River and Bean Creek. 883 Comment
  CHSC45710  Carex feta L. P. Janeway 1987-5-7 2026 Butte Wet drainage edge of Cottonwood Rd 2.2 mi W of Table Mtn Rd at Cottonwood Creek. 48 Comment
  SEINET7558570 Image available Carex feta L. P. Janeway 2003-6-8 7818 Butte High Cascade Range. Flea Valley, at head of Concow Creek. Pulga 7.5' quad. 1116 Comment
  CHSC43912  Carex fracta L. P. Janeway 1987-6-26 2308 Butte Above Camp Cr, 2.5 mi E of Granite Ridge along rd to Lynch and Logue Mdws. 1365 Comment
  SEINET7559905 Image available Carex globosa John Thomas Howell 1962-6-16 37537 Butte Magalia. 732 Comment
  SEINET4231861 Image available Carex gracilior Unknown 2009-1 15710 Butte On the east bank of Big Chico Creek, on the west side of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 milesortheast of Chico. Comment
  SEINET4231863 Image available Carex gracilior Unknown 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. Comment
  SEINET10855729  Carex gracilior Lowell Ahart 1982-5-28 Ahart 3441 Butte On dry rocky soil and under oak trees near North Honcut Creek, n of Peter Ahart Ranch, 3 mi ne of Honcut. Foothill Woodland. 50 Comment
  SEINET7561219 Image available Carex gynodynama Lowell Ahart 1980-7-4 2461 Butte Along Forbestown Road, Yellow Pine Forest. 750 Comment
  CHSC113407  Carex hirtissima Lowell Ahart 2014-7-13 19642 Butte West part of a large wet meadow (some bog), about 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC35706  Carex hirtissima J. D. Jokerst 1982-5-8 1568 Butte N of Forbestown along Ponderosa Way 3/10 mi N of its junction with Lower Forbestown Road. Comment
  CHSC48550  Carex hoodii L. P. Janeway; R. A. Schlising, B. Castro 1988-7-30 3144 Butte Southwest-facing slope above Coon Hollow; near dirt road 1.2 mi W of its high point near the county line. 1950 Comment
  CHSC44119  Carex jonesii L. P. Janeway 1987-6-26 2292 Butte At Rag Dump. 1173 Comment
  CHSC113953  Carex laeviculmis Lowell Ahart 2014-7-10 19608 Butte About 100 yards east of Memorial Spring and the Skyway,about a mile southwest of the intersection of Humbug Road and Philbrook Road, about 2-1/2 miles (air) northwest of Philbrook Reservoir. 1561 Comment
  CHSC109968  Carex lemmonii Peter F. Zika 2011-7-6 25531 Butte Mooreville Ridge Road, 0.4 road miles N of dam on Lost Creek Reservoir. Northern Sierra Nevada Highlands (n SNH). 1025 Comment
  CHSC45254  Carex lemmonii L. P. Janeway 1988-7-2 2946 Butte Marsh/mdw at upper reach of Brush Cr, ca 1.5 mi S of 'town' of Brush Creek. 952 Comment
  JEPS106372  Carex lemmonii Lowell Ahart 2004-7-23 11296 Butte On sides of small stream, ca. 20 yd NW of the dirt road to the West Branch Cpgd, ca. 50 yd SE of the intersection of Humbug Rd and Philbrook Reservoir Rd, ca. 1 3/4 mi (air) W of Philbrook Reservoir Dam, ca. 3 mi (air) SE of Butte Meadows 1586 Comment
  CHSC52283  Carex mariposana L. P. Janeway; R. A. Schlising, B. Castro, F. Jay Fuller 1988-7-11 2995 Butte At Crane Valley (upper Big Kimshew Cr); a large montane meadow. 1569 Comment
  CAS-BOT-BC32151  Carex multicaulis Lowell Ahart 1987-5-11 5623 Butte North of the forbestown Ditch along the dirt road, ca 2.5 mi NE of Forbestown. 853 Comment
  SEINET10713512  Carex multicaulis Lawrence P. Janeway 1988-6-19 Janeway 2830 Butte T24N, R4E, Stirling City quad. NW1/4 of sec. 16. 2.4 mi N of Stirling City towards Inskip, along dirt logging road 0.1 mi W of Skyway. W-facing roadcut of steep soft dirt. With C. brainerdii. 1173 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
  CHSC52262  Carex nebrascensis L. P. Janeway 1988-7-2 2950 Butte Marsh/meadow at upper reach of Brush Creek, ca 1.5 mi S of 'town' of Brush Creek. 952 Comment
  JEPS120083  Carex pendula Lowell Ahart 2012-5-31 18116 Butte On the north side of Comanche Creek, on the east side of Highway 99, Chico. Comment
  HSC100764  Carex scopulorum var. bracteosa Lowell Ahart 2010-9-28 17264 Butte S edge of 10 acre meadow, ~100 yd. E of Big Kimshew Creek, 1.5 (air) mi. NE of Jones Meadow, 2.5 (air) mi. SE of Philbrook Reservoir. 1887 Comment
  UC1609335  Carex stipata var. stipata Lowell Ahart 1993-7-6 7051 Butte about 1/4 mi w Lost Creek Reservoir (on the n side of the dirt road) 1036 Comment
  CHSC52875  Carex subfusca L. P. Janeway; Patty Costello 1987-9-5 2577 Butte NW side of Big Chico Cr below the road to Soda Springs campground, near Hwy 32. 1127 Comment
  SEINET7577202 Image available Carex subfusca Robert F. C. Naczi, A. A. Reznicek 2006-8-1 11402 Butte Jonesville, along Jones Creek, just NE of the historic Jonesville Inn. 1535 Comment
  HSC95493  Carex texensis L. P. Janeway 1997-4-20 5105 Butte S side of City of Chico, 129 W 19th St. 61 Comment
  SEINET11635243  Carex texensis L. P. Janeway 1989-1 3270 Butte Campus of California State University, Chico, N side of Big Chico Cr opposite Holt Hall 58 Comment
  RSA769593  Carex utriculata L. Ahart 2010-9-28 17262 Butte About 50 yards east of the poor dirt road, about 20 yards west of Big Kimshew Creek, about 1.5 air miles northeast of Jones Meadow, 2.5 air miles southeast of Philbrook Reservoir. 1887 Comment
  JEPS121948  Carex whitneyi Lowell Ahart 2014-7-7 19603 Butte On the south side of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  JEPS122426  Carex xerophila Peter F. Zika with L. P. Janeway 2012-5-16 25868 Butte Magalia Serpentine, Coutolenc Road 0.1 miles N of Skyway Road. Northern Sierra Nevada Highland (n SNH) Comment
  SD257104  Carex xerophila P. F. Zika, L. P. Janeway 2012-5-16 25868 Butte Coutolenc Road 0.1 mile north of Skyway Road. 719 Comment
  JEPS18864  Castilleja Rimo Bacigalupi with G. T. Robbins and Fran Chisaki 1956-4-19 5600 Butte w limits (lower) Paradise 457 Comment
  JEPS86449  Castilleja affinis subsp. affinis L. R. Heckard 1973-6-9 3426 Butte ca 5 mi e Oroville (Olive Hwy ca 0.4 mi from junction with Forbestown Rd) 365 Comment
  CDA13307  Castilleja applegatei subsp. pinetorum G. F. Hrusa, T. D. Wilfred 1996-7-9 13153 Butte Sierra Nevada; E side of bridge over Marble Creek on USFS N60. Comment
  CHSC24676  Castilleja applegatei subsp. pinetorum C. E. Stopher 1976-4-15 21 Butte 1.6 km nw of Forest Ranch. 579 Comment
  CHSC25364  Castilleja applegatei subsp. pinetorum Marc P. Hayes 1977-3-20 1 Butte Ca. 2.6 km nw of Jarbo Gap, 4.1 km ssw of Pulga, 10 m on n side of Hwy 70. 650 Comment
  JEPS124299  Castilleja applegatei subsp. pinetorum Lowell Ahart 2015-4-13 20036 Butte About 3 miles (air) north of Jarbo Gap, about 17 1/2 miles (air) north of Oroville. Comment
  JEPS26677  Castilleja applegatei subsp. pinetorum P. C. Hutchison 1961-6-9 2103 Butte along U.S. Alt 40 at Pulga Bridge (canyon of the north fork of the Feather River, w side of river) Comment
  JEPS8021  Castilleja applegatei subsp. pinetorum Rimo Bacigalupi with Lawrence R. Heckard 1951-8-7 3475 Butte 0.3 mi w Jonesville (at crossing of Butte Creek on road from Butte Meadows); Butte Creek 1524 Comment
  JEPS80633  Castilleja applegatei subsp. pinetorum M. S. Taylor 1981-4-5 3484 Butte 2.2 mi s Dark Canyon Rd. junction with Big Bend Rd. (e side of Dark Canyon Rd, ca 3 air mi s of Jarbo Gap on Hwy 70); Berry Creek Quad. 426 Comment
  JEPS81458  Castilleja applegatei subsp. pinetorum M. S. Taylor 1978-7-18 1701 Butte Humboldt Summit, on top of HUmboldt Peakon Butte-Tehama County line Humboldt Peak 2158 Comment
  JEPS81460  Castilleja applegatei subsp. pinetorum M. S. Taylor 1978-7-19 1776 Butte ca 5 mi ne Jonesville (on e side of Upper Scotts John Rd, ca 2 mi n of its junction with Scotts John Rd) 1889 Comment
  SBBG28929  Castilleja applegatei subsp. pinetorum E. B. Copeland 1930-7-12 Butte Jonesville 1750 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
  CAS-BOT-BC255464  Castilleja applegatei var. pinetorum E. B. Copeland 1930-7-12 466 Butte Jonesville 1550 Comment
  UC426962  Castilleja arachnoidea E. B. Copeland 1930-7-12 468 Butte above Jonesville 2100 Comment
  CHSC77997  Castilleja attenuata Lowell Ahart 2000-5-13 8349 Butte On the south side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 42 Comment
  CDA41336  Castilleja attenuata T. C. Fuller 1958-4-15 3804 Butte 1 mile south of Oroville. 0 Comment
  UCD122337  Castilleja attenuata M. Vincent 1964-4-9 532 Butte 1 1/2 miles south of Pearson Rd. Comment
  JEPS4547  Castilleja campestris subsp. campestris A. A. Heller 1938-5-13 15078 Butte e of Richvale (s of the Y, field on U.S. Hwy 99E) 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
  CHSC3842  Castilleja exserta Susan Carrauthers 1966-3-28 80 Butte Table Mountain. Ca. 6 mi. N. of city of Oroville. Comment
  CHSC9268  Castilleja exserta D. C. Burns 1971-4-4 120 Butte Ca. 20 yds. e of highway 70, ca. 7 mi n of Oroville. 82 Comment
  CHSC2427  Castilleja lacera R. Carter 1965-6-15 233 Butte Found .5 mi. N of Derrick Rd. on Old Cherokee Rd. along W side of orad ca. 5' from edge of road, North Table Mountain ca 5 mi. of Oroville. 335 Comment
  CHSC43193  Castilleja lacera R. A. Schlising 1981-4-27 4042 Butte S of Cohasset. Immediate roadside of Cohasset hwy, 2.9 mi NE jct with road to Richardson Springs. 201 Comment
  CHSC62585  Castilleja lacera L. P. Janeway 1993-4-27 4332 Butte Upper Bidwell Park, Chico. Steep southeast-facing slope just below the rin, overlooking Day Camp, ca. 0.3 mi east of the powerlines. 228 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
  CAS-BOT-BC241125  Castilleja miniata A. A. Heller 1914-7-23 11612 Butte Sierra Nevada at Chico Meadows 1280 Comment
  CHSC1724  Castilleja pruinosa H. Summers 1929-3-11 Butte Richardson Springs Road. 152 Comment
  CHSC43963  Castilleja rubicundula subsp. rubicundula V. Oswald 1988-5-25 3340 Butte Gray Lodge Waterfowl Management Area, ca. 0.25 mi s of Rutherford Rd., 0.5 mi w of Pennington Rd. 21 Comment
  CHSC31643  Caulanthus lasiophyllus L. Ahart 1974-4-14 415 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CAS-BOT-BC56923  Ceanothus Carl B. Wolf 1941-7-23 11049 Butte Northern Sierra Nevada. 5 mi. below Magalia on Oroville Road 609 Comment
  UC1070967  Ceanothus cordulatus C. G. Albertus 1933-7-25 48 Butte just s Thompson's; Chico quad 1280 Comment
  SEINET10493628  Ceanothus cuneatus Mary Susan Taylor 1975-4-26 Taylor 523 Butte Kunkle Reservoir, ca. 500 yds E of Pentz-Magalia Hwy, ca. 1 m SE of Paradise. With Orthocarpus erianthus, Centaurea solstitus, Lupinus bicolor, Typha latifolia. 610 Comment
  SEINET12210968  Ceanothus cuneatus Unknown 1977-1 14 Butte 4 mi N of Paradise and 100 yds N of Magalia 732 Comment
  SEINET13945814 Image available Ceanothus cuneatus T. A. Ranker, P. G. Trapp 1994-1 1618 Butte Pence Road, S of Paradise, Cherokee Quad (7.5 min TOPO map); ca 1300 ft alt., T21N R4E SEC6 396 Comment
  CAS-BOT-BC50776  Ceanothus integerrimus Lewis S. Rose 1968-6-12 68112 Butte Feather River Canyon - Pulga 487 Comment
  UC725821  Ceanothus integerrimus A. A. Heller 1938-5-28 15126 Butte near Pulga (along the Feather River Hwy.) 420 Comment
  CHSC45726  Ceanothus integerrimus var. californicus Richard Steward 1988-4-25 9 Butte Ca. 6 mi n, 1.8 mi nw of Paradise. 640 Comment
  RSA107427  Ceanothus integerrimus var. puberulus L. S. Rose 1955-6-15 55099 Butte Paradise 518 Comment
  CAS-BOT-BC51147  Ceanothus lemmonii John Thomas Howell 1975-6-15 51115 Butte Paradise, Skyway near Billie Road 609 Comment
  CHSC42001  Ceanothus lemmonii Lowell Ahart 1973-4-15 202 Butte Along Swedes Flat Road, north of Bangor. 304 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
  CAS-BOT-BC52018  Ceanothus prostratus A. A. Heller 1915-6-11 11971 Butte Chico Meadows in the Sierra Nevada 1219 Comment
  RSA719720  Ceanothus prostratus Michael A. Vincent, K. Levings 2006-7-29 12891 Butte NE of Chico along Rt. 32. Comment
  RSA753078  Ceanothus prostratus Dylan O. Burge 2007-5-11 DOB- 921 b Butte East shore of Lake de Sabla, 1.5 road miles (2.4 km) N of intersection with Magalia Nimshew Road on Skyway, 7.35 km 338 degrees (True) NNW of Magalia. 850 Comment
  SEINET194924  Ceanothus prostratus A. A. Heller 1941-6-22 16179 Butte Cohasset Comment
  CHSC100800  Ceanothus velutinus R. A. Schlising; L. Janeway 1988-7-1 4547 Butte N part of county; end of road above Summit Lake, on Snow Mountain. Comment
  LA45120  Ceanothus velutinus E. B. Copeland; 1930-6-29 424 Butte Jonesville 1550.0 Comment
  CHSC6002  Cedrus atlantica M. MacArthur 1968-6-19 246 Butte Front of Administration bld., Chico State College. 60 Comment
  JEPS120067  Celtis australis Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 17997 Butte On the south side Vallombrosa Avenue, north side of the old walnut orchard, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  JEPS120082  Celtis australis Lowell Ahart, Linnea Hanson, Kaline Le Coq, Josephine Guardino 2012-4-27 17910 Butte On the north side of the path, near the table 14, on the north side of Centennial Avenue, Lower Bidwell Park, Chico. Comment
  UC2026880  Celtis occidentalis Lowell Ahart, Susan Bazell, Josephine Guardino, Wes Dempsey 2012-7-5 18271 Butte Path in Cedar Grove, west parking area, Lower Bidwell Park, Chico. Comment
  CAS-BOT-BC272093  Centaurea melitensis A. A. Heller 1916-4-13 1753 Butte Stilson Canyon east of Chico Comment
  UCD130046  Centaurea melitensis L. E. Hazeltine 1916-6-27 s.n. Butte Chico. Comment
  CHSC90928  Centaurea solstitialis Lowell Ahart 2005-4-14 11722 Butte North side of a deep drain ditch, about 200 feet east of the railroad tracks, north of Spruce Street, Gridley. 28 Comment
  CHSC84382  Centaurium tenuiflorum Lowell Ahart 1983-6-26 4128 Butte Along Ponderosa Way, about 2 miles south-east of the intersection of the Oroville Quincy Highway and Ponderosa Way, about 15 miles north-east of Oroville. Note: the sign gives Big Ridge Road instead of Ponderosa Way. 500 Comment
  UC763199  Centaurium venustum Robert F. Hoover 1936-5-21 1163 Butte 7 mi n Chico Comment
  SEINET10454835  Centaurium venustum subsp. abramsii Mary Susan Taylor 1980-5-31 Taylor 2759 Butte T22N R4E sw sec 31. Kunkle Reservoir, on E side of Pentz-Magalia Hwy, ca. 2 mi SE of Paradise. With R.A. Schlising and L. Ahart. 442 Comment
  SEINET10454837  Centaurium venustum subsp. abramsii Mary Susan Taylor 1980-6-14 Taylor 2874 Butte T21N R6E nw sec 29. Big Bend quad. Little Bald Rock, on granite dome, ca. 4 mi E of Lake Madrone. 1016 Comment
  CHSC45958  Centunculus minimus Lowell Ahart 1975-6-19 795 Butte Along the edge of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 3 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  CAS-BOT-BC388176  Cerastium fontanum Lowell Ahart 1987-5-22 5679 Butte About 1/8 mile north-east of Camp 18, about 6 1/2 miles north-east of Feather Falls 1219 Comment
  CHSC64040  Cerastium fontanum subsp. vulgare S. C. Morey 1983-8-4 722 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  JEPS122198  Ceratophyllum demersum Lowell Ahart 2014-4-16 19373 Butte On 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
  CHSC115429  Cercis occidentalis Ariana Gehrig 2013-4-18 Butte City of Chico. Big Chico Creek at Rio Chico Way. 64 Comment
  OBI69157  Cercis occidentalis Kari Fisher, Bill Fisher 2000-10-8 27 Butte Upper Bidwell Park, along Upper Bidwell Park rd 98 Comment
  RSA719533  Cercis occidentalis Michael A. Vincent, K. Levings, Karl Vincent 2006-7-29 12880 Butte East of Chico along Rt. 32. Comment
  SD4456  Chamaesaracha nana E. B. Copeland 1929-7-16 396 Butte Jonesville, bare summer dry ground 1550 Comment
  CHSC113145  Chamaesyce maculata Lowell Ahart 2013-11-13 19252 Butte Along road, about 100 yards west of the intersection of Sucker Run Road and Ponderosa Way, about 400 yards north of the Ponderosa Dam spillway. 299 Comment
  CHSC94599  Chamaesyce maculata Lowell Ahart 2006-9-11 13284 Butte South edge of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville. 431 Comment
  JEPS115356  Chamaesyce maculata Lowell Ahart 2009-7-3 15987 Butte On the east side of the road, 30 yards southeast of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 100 yards east of Cedar Grove, Lower Bidwell Park, Chico 67 Comment
  JEPS115727  Chamaesyce maculata Lowell Ahart 2009-8-15 16283 Butte Garden area, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville 33 Comment
  RSA755374  Chamaesyce maculata L. Ahart 2009-8-13 16272 Butte In the channel, about 100 yards east of the diversion structure that controls Mud Creek diversion and Lindo Channel, northeast of Hooker Oak, Upper Bidwell Park, Chico. 69 Comment
  CHSC38440  Chamaesyce nutans Vernon Oswald 1983-7-8 844 Butte Upper Bidwell Park, Chico, in the bed of Lindo Channel near the flood-control weir. 79 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
  CHSC38442  Chamaesyce serpillifolia subsp. serpillifolia Vernon Oswald 1983-6-24 757 Butte Upper Bidwell Park, Chico, in Lindo Channel near Five Mile Recreation Area. 79 Comment
  JEPS95806  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 1999-10-28 8310 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
  SEINET10529874  Cheilanthes cooperae Mary Susan Taylor 1979-5-4 Taylor 1990 Butte T21N R6E sec 10. Millsap Bar Campground, ca. 9 mi NE of junction of Millsap Bar Road with Brush Creek Road, ca. 26 mi NE of Oroville; Yellow Pine Forest with limestone outcrops. 1006 Comment
  CAS-BOT-BC69441  Cheilanthes gracillima M. S. Taylor; L. Ahart; J. Jokerst 1982-1-17 5214 Butte Vicinity of mouth of Flag Canyon. On top of N. Table Mt., ca. 8 mi. n. of Oroville. 373 Comment
  SEINET10529917  Cheilanthes gracillima Mary Susan Taylor 1980-5-27 Taylor 2663 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
  SEINET10479109  Chenopodium ambrosioides var. vagans Mary Susan Taylor 1975-10-3 Taylor 933 Butte Ca. 1/4 mile N of the Washout, between River Road and the Sacramento River, ca. 10 mi W of Chico. Riparian Woodland and sloughs, wet and humid. 37 Comment
  SEINET10479018  Chenopodium botrys Mary Susan Taylor 1979-10-5 Taylor 2226 Butte T23N R4E sec 18. SE side of Paradise Lake (from picnic area to first creek coming into lake, along road), ca. 0.5 mi N of Coutolenc Rd, ca. 5 mi N of Magalia. 732 Comment
  UCSB64026  Chenopodium murale Ahart, Lowell 1981-7-26 Butte 1/10 mile west of Pennington Road, just west of the road to the Gray Lodge Waterfowl Management Area Headquarters, about 12 miles south-west of Gridley 30 Comment
  SD3529  Chimaphila menziesii E. B. Copeland 1930-7-27 433 Butte Jonesville Scattered or solitary in coniferous woods. 1600 Comment
  UC1609417  Chimaphila menziesii Lowell Ahart 1993-7-29 7129 Butte ca. 6 1/2 mi. n.e. Stirling City (ca. 1/8 mi. s.w of Snow Mine, ca. 2 1/2 mi. e. of Bald Mt.) 1463 Comment
  CHSC48671  Chimaphila umbellata Vernon Oswald 1987-7-16 3128 Butte West Branch of Feather River where it crosses the road to Jones Meadow, ca. 1 mi (air) ne of Inskip. 1341 Comment
  SBBG16796  Chimaphila umbellata E. B. Copeland 1930-6-24 Butte Jonesville 1550 Comment
  CAS-BOT-BC451487  Chimaphila umbellata Lowell Ahart 1989-5-29 6310 Butte S. side of gravel road to the Forbestown Reservoir, about 1 mile NE of Forbestown Rd., about 2.5 miles NE of Forbestown 822 Comment
  JEPS50846  Chlorogalum pomeridianum var. pomeridianum D. A. Hutt and H-M. Beard Aug 2 1965-Aug 3 1967 57 .838 Butte Comment
  UCD99736  Chorizanthe membranacea L. Ahart 1984-6-8 4678 Butte Along the dirt road near the water tower, above the generator, ca. 1 mi E of Ponderosa Dam, ca. 2 mi N of Forbestown. 475 Comment
  CHSC39074  Chorizanthe polygonoides var. polygonoides R. A. Schlising 1980-4-6 3545 Butte E of Chico along Skyway, 3.5 mi S of Paradise. 213 Comment
  CHSC45362  Chorizanthe polygonoides var. polygonoides Vernon Oswald 1987-4-14 2323 Butte Hwy 32 between Chico and Forest Ranch 0.8 mi s of Crown Point Rd. 524 Comment
  CHSC38609  Chorizanthe stellulata Vernon Oswald 1983-5-14 489 Butte Upper Bidwell Park, Chico, on the north rim ca. 1600 ft e of the power lines. 274 Comment
  CHSC35077  Cicendia quadrangularis R. A. Schlising 1980-3-24 3527 Butte NE of Chico at Covered Bridge over Butte Creek, at junction of Humbug and Honey Run Roads. Comment
  CAS-BOT-BC279860  Cichorium intybus A. A. Heller 1914-7-11 11559 Butte Near Chico Comment
  SEINET10901866  Cinna latifolia Lowell Ahart 1983-8-16 Ahart 4287 Butte T26N R4E nw section 28. Along a small stream that flows into Butte Creek, ca. 1 mi east of Butte Meadows. Yellow Pine Forest; 1450 m. 1450 Comment
  CHSC40774  Circaea alpina subsp. pacifica Lowell Ahart 1985-7-9 5116 Butte Along Fall River, about 100 yards south of the bridge across Fall River. about 1/2 mile west of Lumpkin Ridge Road, about 2 1/2 miles north-east of Camp 18, about 9 miles north-east of Feather Falls. 914 Comment
  RSA4232  Circaea alpina subsp. pacifica E. B. Copeland 1929-7-20 386 Butte Jonesville. 1500 Comment
  CHSC37410  Cirsium arvense R. A. Schlising; J. D. Jokerst 1982-9-7 4390 Butte N part of county, n of Philbrook Reservoir, in Coon Hollow. Roadside. 1706 Comment
  UC179477  Cirsium douglasii var. breweri A. A. Heller 1914-8-7 11652 Butte Butte Meadows 1219 Comment
  SEINET10473708  Cirsium proteanum Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4075 Butte T20N R5E sec 6. Along Bloomer Hill Rd, ca. 3/4 mi w of Oroville-Quincy Hwy, ca. 15 mi ne of Oroville. Foothill Woodland; 425 m. 425 Comment
  CAS-BOT-BC228757  Cistanthe umbellata A. A. Heller 1917-7-29 12858 Butte Summit above Jonesville 2133 Comment
  HSC66229  Clarkia arcuata Thomas A. Welgan 1979-4-15 4 Butte 6 mi. N of Oroville, 100 ft. W of Cherokee Mtn. Rd. 366 Comment
  SFV10929  Clarkia biloba M. L. Vincent 1963-6-8 394 Butte Sierra Nevada Honey Run Road. West of Paradise. Comment
  CHSC84864  Clarkia concinna subsp. concinna L. P. Janeway; John Hunt 2003-6-5 7810 Butte Northern Sierra Nevada Foothills. Steep north-facing slope above Lake Oroville 550 m east of the south end of Bidwell Bar Bridge. 290 Comment
  CAS-BOT-BC164521  Clarkia gracilis subsp. albicaulis Mrs. C. C. Bruce 1892-5-1 1954 Butte Little Chico Comment
  CAS-BOT-BC164523  Clarkia gracilis subsp. albicaulis Lowell Ahart 1987-5-9 5605 Butte Near the bridge across the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 304 Comment
  CAS-BOT-BC171885  Clarkia gracilis subsp. gracilis Lowell Ahart 1983-6-26 4142 Butte Along Ponderosa Way, just a little south of the East Fork of Canyon Creek, 14 miles north-east of Oroville, Note: the sign gives Big Ridge Road instead of Ponderosa Way. 500 Comment
  SEINET10973132  Clarkia mildrediae Lowell Ahart, Peter Ahart 1983-6-30 Ahart 4186 Butte T23N R4E nw sec 10. Along edge of dirt road, ca. 3 mi se of Stirling City, on w side of West Branch of Feather River. Yellow Pine Forest; 1100 m. 1100 Comment
  CHSC37426  Clarkia mosquinii R. A. Schlising; K. Tarp, R. Banchero 1981-7-11 4134 A Butte NE of Oroville; N of the French Creek Road crossing of Peavine Creek. Roadside. 647 Comment
  CHSC65575  Clarkia mosquinii L. P. Janeway 1995-7-7 4835 Butte Along Hwy 70 1.9 mi northeast of Jarbo Gap. Southeast-facing road cutbank through mid-slope of North Fork Feather River canyon. 649 Comment
  SEINET10492502  Clarkia mosquinii subsp. mosquinii Lawrence P. Janeway 1991-6-1 Janeway 3978 Butte Berry Creek quad T22N, R4E, SE 1/4 of SW 1/4 of sec 35, elev. 1780 feet. West-facing rocky cut-bank of Dark Canyon Road 0.6 mile south of Big Bend Road/Parkhill. Mid-slope of canyon in mixed conifer forest. 545 Comment
  UCD104851  Clarkia purpurea H. A. Hannesson; R. N. Raynor 1941-5-9 s.n. Butte 4 miles N of Gridley. Comment
  CAS-BOT-BC163656  Clarkia purpurea subsp. quadrivulnera John Thomas Howell 1962-6-16 37554 Butte Magalia 731 Comment
  CHSC75386  Clarkia purpurea subsp. quadrivulnera Jennifer Slater 1997-4-12 16 Butte Upland area at the Wurlitzer addition of the Vina Plains Preserve approx. one mile west of Highway 99. 67 Comment
  CHSC48629  Clarkia purpurea subsp. viminea Vernon Oswald 1988-6-14 3377 Butte Jordan Hill Rd. between Coutolenc Rd. and the West Branch of the Feather River. 512 Comment
  CAS-BOT-BC172381  Clarkia purpurea subsp. viminea Lowell Ahart 1984-5-28 4650 Butte Along Old Highway 40, now Dark Canyon Road, about 2 miles east of Old Yankee Hill, about 16 miles north-east of Oroville 450 Comment
  CAS-BOT-BC164778  Clarkia rhomboidea Lowell Ahart 1982-6-15 3581 Butte About 1 1/2 miles east of Camp 18, about 8 miles east of Feather Falls 1000 Comment
  CAS-BOT-BC164791  Clarkia rhomboidea Mrs. J. H. Morrison 1932-5-30 s.n. Butte Durham Comment
  CHSC1114  Clarkia rhomboidea R. Carter 1964-5-16 91 Butte Feather River Canyon, 1/4 mi. W of Cresta powerhouse on S side of Hwy. 40A. 670 Comment
  CHSC70753  Clarkia rhomboidea L. P. Janeway 1993-7-2 4419 Butte Southwest side of Swayne Hill 1 mi northeast of mouth of French Creek; along Road 23N28 1.3 mi north of Road 22N34. 743 Comment
  CHSC96755  Clarkia rhomboidea Lowell Ahart 2007-5-29 13923 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
  CHSC1117  Clarkia xantiana J. Wakeman 1963-5-18 Butte In College Greenhouse. 57 Comment
  SEINET10572685  Claytonia heterophylla Lowell Ahart 1983-8-16 Ahart 4289 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
  UC1562475  Claytonia lanceolata Vernon Oswald and Lowell Ahart 1990-6-20 4306 Butte s side Philbrook Creek (between Philbrook Reservoir and Carr Mine; ca 0.5 mi w of the Butte-Plumas county line) 1920 Comment
  UCD100547  Claytonia palustris H. F. Copeland 1929-6-9 s.n. Butte Jonesville. 1524 Comment
  RSA0005217  Claytonia palustris J. R. Swanson 1959-7-4 490 Butte Jonesville, 0.4 Km east of the Jonesville Hotel. Comment
  CHSC54368  Claytonia parviflora subsp. parviflora M. Bailey 1991-3-6 545 Butte On property s of Honey Run Road and e of Butte Creek; proposed location of Butte Creek Volunteer Fire Station. 103 Comment
  JEPS119842  Claytonia parviflora subsp. parviflora Lowell Ahart 2012-3-23 17802 Butte About 70 yards west of Ten Mile House Road, about 3/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  SFV1192  Claytonia perfoliata M. L. Vincent 1961-3-29 27 Butte Sacramento Valley Chico. Bidwell Park. 100 Comment
  CHSC92572  Claytonia perfoliata subsp. perfoliata L. P. Janeway 2005-3-1 8342 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  RSA469284  Claytonia rubra H. F. Copeland 1929-6-11 1516 Butte Jonesville. 1524 Comment
  UCR66727  Claytonia sibirica H. F. Copeland 1931-6-9 1515 Butte Jonesville, by Jones Creek 1524 Comment
  CAS-BOT-BC91351  Clematis lasiantha Jeanne McFarland; Kathie Meyer; Anne Mullenniex 1995-4-9 48 Butte About 5 miles south of Paradise on Pentz Road, at intersection with Kuncle Reservoir Road. Comment
  JEPS115846  Clematis lasiantha Lowell Ahart 2009-4-22 15589 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
  CDA36307  Clematis lasiantha J. R. Keck Jr. 1978-5-23 s.n. Butte Highway 70, Jarboe Gap. Near Poe Power House. 0 Comment
  CHSC84380  Clematis ligusticifolia L. Ahart; P. Ahart 1983-7-24 4215 Butte At the Forbestown Reservoir, ca. 5 mi ne of Forbestown. 450 Comment
  RSA325883  Clematis ligusticifolia L. Ahart, P. Ahart 1983-7-24 4215 Butte S32 at the Forbestown Reservoir, 5 miles NE of Forbestown, Yellow Pine Forest. 450 Comment
  CHSC1733  Collinsia heterophylla R. M. Staley 1952-7-15 Butte Honey Run. 106 Comment
  POM42868  Collinsia heterophylla C. C. Bruce 1897-04 1846 Butte Little Chico. Comment
  SBBG17350  Collinsia heterophylla M. Vincent 1962-4-20 214 Butte Hwy 40, Feather River Cyn Rd, 6 mi NE of Oroville near site of Feather River Dam Comment
  CHSC29820  Collinsia sparsiflora M. S. Taylor 1980-4-16 2482 Butte Lake Oroville State Recreation Area, Parish Camp (about 1/2 s of it), just south of Lime Saddle Memorial Park, ca. 5 mi s of Paradise. 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
  UC725864  Collinsia sparsiflora var. collina A. A. Heller 1942-4-26 Butte halfway from Cherokee to Oregon City road Cherokee; Table Mountain Comment
  POM43045A  Collinsia sparsiflora var. collina C. C. Bruce 1897-03 2062 Butte [No location information provided.] Comment
  CHSC11958  Collomia grandiflora E. B. Copeland 1931-7-14 677 Butte Jonesville. 1550 Comment
  SEINET10496933  Collomia grandiflora Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4747 Butte About 1 1/2 mile south-east of Bald Mountain, 3/4 mile west of Oak Point, about 4 miles north-east of Stirling City. Comment
  SEINET2440903  Collomia heterophylla R. M. McKee 1918-5-12 s.n. Butte Magalia. Comment
  SEINET10496711  Collomia linearis Mary Susan Taylor 1978-6-24 Taylor 1644 Butte Ernies Island, in Butte Creek, junction with Old Humboldt Road, ca. 0.5 mi W of Butte Meadows; Yellow Pine Forest. 1372 Comment
  CHSC29378  Collomia tinctoria R. A. Schlising; R. Banchero 1980-6-12 3691 Butte 0.25 mi s of Tehama Co. line on Hwy 32. Roadside. 1121 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
  UC478478  Collomia tinctoria E. B. Copeland 1931-6-29 679 Butte on gravel bars along creek Jonesville, Butte Creek 1500 Comment
  CAS-BOT-BC180251  Comandra umbellata subsp. californica A. A. Heller 1915-4-20 11845 Butte 3 miles above Centerville in the Sierra foothills Comment
  CAS-BOT-BC180253  Comandra umbellata subsp. californica Helen M. Edwards 1917-6-1 s.n. Butte De Sabla Comment
  CHSC3441  Convolvulus arvensis Judy Potter 1966-5-14 Butte Nord Highway, 2 miles west of US 99E. Comment
  CHSC40475  Conyza floribunda Lowell Ahart 1985-1-27 4836 Butte Along the road at Kunkle Res., about 2 miles south of Paradise. 550 Comment
  CHSC33797  Corallorhiza maculata M. S. Taylor; L. Hanson, H. Phillips 1981-5-27 3804 Butte W side of Paradise lake, ca. half way between Butte Creek entrance to the north and dam to the south, ca. 50 ft up from lake edge, ca. 3 air mi n of Magalia. 792 Comment
  UC429104  Corallorhiza striata R. M. Austin July, 1896 224 Butte Colby Comment
  CHSC105792  Cordylanthus pilosus subsp. hansenii Lowell Ahart 2010-9-12 17150 Butte Below the high water line of Lake Oroville, about 150 yards north of the South Fork of the Feather River, about 50 yards east of Sucker Creek, about 1/4 mile (air) northwest of the Ponderosa Dam. 243 Comment
  JEPS115275  Cordylanthus pilosus subsp. hansenii Lowell Ahart 2009-6-30 15973 Butte On the west side of Ten Mile House Road, about 30 yards east of Big Chico Creek, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 234 Comment
  RSA719716  Cordylanthus pilosus subsp. pilosus Michael A. Vincent, K. Levings 2006-7-29 12895 Butte NE of Chico along Rt. 32. Comment
  CDA41358  Cordylanthus pilosus subsp. trifidus L. Ahart 2003-8-7 10479 Butte On the south side of a poor dirt road, about 1/2 mile north of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  RSA88133  Cordylanthus pilosus subsp. trifidus J. T. Howell 1951-6-26 27515 Butte Feather River Canyon. 213 Comment
  CHSC48988  Cordylanthus tenuis subsp. viscidus Vernon Oswald 1985-7-15 1906 Butte Concow Rd. 0.2 mi s of Ponderosa Way, also called Rim Rd. 950 Comment
  SD3504  Cornus californica E. B. Copeland 1930-6-25 Butte Jonesville 1500 Comment
  CHSC3863  Cornus florida Gary Dutton 1966-4-13 210 Butte CSC; East side of Shasta Dining Hall along creek and foot bridge. Comment
  CHSC5947  Cornus florida M. MacArthur 1968-6-17 170 Butte SW end of bridge over Big Chico Creek NW of Dining Hall, Chico State College campus. 60 Comment
  RSA28808  Cornus nuttallii A. A. Heller 1914-6-24 11513 Butte West side of the Sierra Nevada at West Branch. 1037 Comment
  UC1122804  Cornus sessilis R. Bacigalupi 1934-9-2 2325 Butte 10 mi. s.w. Butte Meadows (along Chico-Butte Meadows Rd., canyon of W. Fork Campbell Creek); Lassen Nat'l Forest, Chico Quad., W. Fork Campbell Creek Comment
  RSA32004  Cornus stolonifera A. A. Heller 1938-7-20 15282 Butte Upper end of Snag lake 7 miles east of Chaparral on the Humbug Road. 1524 Comment
  CHSC11913  Corydalis caseana subsp. caseana E. B. Copeland 1929-7-3 365 Butte Jonesville. 1500 Comment
  UCD40400  Corylus cornuta subsp. californica Rodney Gale Myatt 1971-6-13 722 Butte 1 mi. north of Inskip. Skyway Road, north of Paradise. Road between Butte Meadows and Magala. Comment
  CHSC28013  Corylus cornuta var. californica M. S. Taylor 1978-7-21 1779 Butte Lake Madeone at its jct with Oroville-Quincy Hwy ca. 10 mi ne of Oroville. 609 Comment
  JEPS117559  Cotula coronopifolia Lowell Ahart 2010-6-20 16818 Butte Bottom of Wyandotte Creek, under the government pole line, about 100 yards south of the pole, about one mile east of Palermo Honcut Highway, Guidci Ranch, about 7 miles (air) southeast of Oroville 47 Comment
  CHSC26728  Crassula aquatica M. S. Taylor; M. Hayes 1978-4-14 1553 Butte 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
  CHSC36291  Crassula aquatica M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4358 Butte Graylidge Waterfowl Refuge, n side of Rutherford Rd, w of Pennington Rd, ca. 12 mi sw of Gridley. 21 Comment
  CHSC100971  Crassula connata L. P. Janeway 2008-3-18 9238 Butte Cascade Range Foothills. East edge of City of Chico; south side of Humboldt Road 1.4 km northeast of Bruce Road. 126 Comment
  CHSC50035  Crassula connata Lowell Ahart 1990-4-8 6442 Butte On the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CHSC46743  Crassula tillaea Lowell Ahart 1974-4-11 382 Butte On the north side 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. 42 Comment
  CAS-BOT-BC427957  Crassula tillaea Lowell Ahart 1979-5-11 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  CHSC102563  Crataegus monogyna L. P. Janeway 2010-4-1 9969 Butte Cascade Range Foothills. Upper Bidwell Park, Chico; south side of Upper Park Road, east side of the start of Yahi Trail (at Upper Park Road). 91 Comment
  JEPS118636  Crataegus monogyna L. P. Janeway 2011-6-28 10247 Butte Cascade Range Foothills. Upper Bidwell Park, Chico; along Lower Trail 46 m north of Upper Park Road and 90 m north of Big Chico Creek; 0.4 km west of Day Camp. Comment
  JEPS126582  Crucianella angustifolia Lowell Ahart 2016-5-25 20877 Butte About 200 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. Comment
  SD116531  Crucianella angustifolia Barbara Ertter, L. Ahart, J. Strachan 1980-5-6 3282 Butte Peter Ahart Ranch ca 2I(c) mi NNE of Honcut between Oroville & Marysville, stream 29 Comment
  HSC97072  Crypsis alopecuroides L. Ahart 2006-9-11 13302 Butte S edge of the N Fork of the Feather River, N side of Highway 70, about 1/8 miles W of the Poe Dam, about 3/4 mile NE of Pulga, about 21 miles (air) NE of Oroville 432 Comment
  CAS-BOT-BC190089  Crypsis schoenoides Lowell Ahart 1980-8-16 2584 Butte Near Honcut. 60 Comment
  CHSC66367  Crypsis schoenoides Vernon H. Oswald 1996-6-20 7826 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 bed of a marsh at the SW corner of Tract 2, Sanctuary II. 33 Comment
  CHSC37662  Crypsis vaginiflora T. B. Devine 1981-9-3 768 Butte At edge of Horseshoe Lake, Upper Bidwell Park, Chico. 106 Comment
  CHSC151  Cryptantha S. Ptomey 1929-3-26 Butte Chico Golf Links. 60 Comment
  UCR244659  Cryptantha J. T. Howell, H. K. Wagnon 1980-5-26 53576 Butte Sierra Nevada Mtns., Feather River Canyon Highway, 2.4 miles southwest of Pulga Bridge 598 Comment
  CHSC46451  Cryptantha affinis V. Oswald; L. Ahart 1989-6-27 3820 Butte Ridge east of Scotts John Creek, ca. 3.3 mi (air) e of Jonesville. 2042 Comment
  POM183197  Cryptantha affinis H. F. Copeland 1930-7-28 1386 Butte Neighborhood of Jonesville. 1829 Comment
  UC1609327  Cryptantha affinis Lowell Ahart 1993-6-26 7018 Butte about 1 mi w Lost Creek Reservoir (e side of the dirt road) 1188 Comment
  UC857135  Cryptantha affinis A. A. Heller 1914-6-22 11487 Butte Little Summit 1463 Comment
  CHSC103215  Cryptantha crinita Paul Kirk 2010-5-25 102 Butte Bidwell-Sacramento River State Park, large gravel bar on the east side of Sacramento River just upstream of confluence with Big Chico Creek. UTM, Zone 10: E 590655, N 4394848. 36 Comment
  CHSC107243  Cryptantha flaccida Lowell Ahart 2011-6-5 17366 Butte On a large gravel bar, on the north side of 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
  SEINET10497604  Cryptantha hendersonii Lowell Ahart, Peter Ahart 1983-6-30 Ahart 4180 Butte T22N R4E nw/nw sec 1. Ca. 1.5 mi ne of Concow Reservoir. Foothill Woodland; 550 m. NE of Oroville. 550 Comment
  CHSC62534  Cryptantha intermedia L. P. Janeway 1993-5-2 4337 Butte Sperpentine rocky outcrop narrow ridge, south of Serpentine Point and above Hwy 70. 518 Comment
  SD4203  Cryptantha torreyana E. B. Copeland 1929-7-29 Butte Jonesville 1700 Comment
  CHSC113400  Cryptantha torreyana var. torreyana Lowell Ahart 2014-7-7 19565 Butte About 5 yards east of the Skyway, about one-mile north of Stirling City. 1142 Comment
  CHSC37405  Cryptogramma acrostichoides R. A. Schlising 1982-6-30 4313 Butte E of Inskip and SE of Jones Meadow in NE part of county. 1783 Comment
  JEPS94944  Cryptogramma acrostichoides Lowell Ahart 1997-8-1 7786 Butte about 1/4 mi e Table Mountain (near some small streamlets of creek, about 8 air mi ne of Stirling City); Snow Meadow, Little Kimshew Creek 1524 Comment
  SEINET9628262 Image available Cryptogramma acrostichoides H. F. Copeland 1932-8-19 Butte Woods below crest Butte Creek. Vicinity of Jonesville, Lassen National Forest. 1700 Comment
  SEINET10932809  Cupressus macnabiana Carl B. Wolf, E. R. Johnson 1934-10-5 Wolf 2121 Butte Sierra Nevada foothills, at Magalia. Upper sonoran:- Digger Pines. Sun. Bright green serpentine. 700 Comment
  CHSC27180  Cupressus sempervirens M. MacArthur 1968-6-22 272 Butte Ca. 20 ft. NW EP bld., Chico State College. 60 Comment
  JEPS93811  Cuscuta californica Lowell Ahart 1998-7-19 8048 Butte along Hurleton Swedes Flat Road 1 1/2 air mi s of Hurleton (about 11 air mi se of Oroville); Hurleton Swedes Flat Road 487 Comment
  CHSC47406  Cuscuta howelliana Lowell Ahart 1980-6-15 2373 Butte About 2-1/2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  RSA299404  Cuscuta howelliana L. Ahart 1979-10-7 s.n. Butte Peter Ahart Ranch, Honcut. In vernal pool in a farmed field in Valley Grassland. 35 Comment
  JEPS110300  Cuscuta pentagona Lowell Ahart 2006-9-13 13313 Butte South edge of the North Fork of the Feather River, just west of Mill Creek, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville 431 Comment
  CAS-BOT-BC190247  Cynodon dactylon Lowell Ahart 1979-6-2 s.n. Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC78065  Cynoglossum grande Caleb E. Casey 1999-3-4 Butte Upper Bidwell park, below bluffs on south side over Bear Hole. 30 Comment
  JEPS117276  Cynosurus echinatus Lowell Ahart 2010-5-14 16660 Butte Area of erosion control, Disc Golf Area, about 100 yards west of the entrance to the Disc Golf Area, about 120 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 372 Comment
  JEPS127226  Cynosurus echinatus Lowell Ahart 2016-5-30 20902 Butte Peter Ahart Ranch, about 2 1/2 miles north and 1/4 mile east of Honcut, about 12 miles (air) south of Oroville. Comment
  UCD60178  Cynosurus echinatus Beecher Crampton 1965-6-17 7384 Butte 1/2 mile west Rackerby Store, La Porte Road. 426 Comment
  SEINET10502764  Cyperus Lowell Ahart 1984-9-24 Ahart 4810 Butte Along edge of Middle Honcut Road, ca. 3/4 mi E of Hwy 70, ca. 12 mi S of Oroville. Valley Grassland; 35 m. 35 Comment
  CHSC76850  Cyperus difformis L. P. Janeway 1999-6-26 6487 Butte Sacramento Valley. Along east side of Sacramento River 1.0 mi southeast of the Ord Ferry Road bridge. 28 Comment
  JEPS104238  Cyperus difformis Lowell Ahart 2003-6-23 10314 Butte In a rice field, Peter Ahart Ranch, ca 300 yd e of the Palermo Honcut Highway, ca 2 1/8 mi n of Honcut, ca 12 mi south of Oroville. 30 Comment
  UCD169397  Cyperus difformis L. P. Janeway 2001-6-13 7167 Butte Sacramento Valley. On east side of the Sacramento River about 1.8 km southeast of Ord Ferry Road bridge. 29 Comment
  SEINET8756313 Image available Cyperus difformis J. M. Tucker 1953-8-28 Butte Biggs Rice Experiment Station Comment
  CDA34640  Cyperus eragrostis L. Ahart 2009-6-3 15968 Butte On the east side of Ten Mile House Road, about 30 yards east of Big Chico Creek, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. Comment
  CHSC4293  Cyperus eragrostis M. M. Gregg 1966-5-27 182 Butte CSC Campus: in lawn, across from the Dick Lewis Memorial Barbecue Pit. Which is found behind the dining hall. Chico. Comment
  CHSC68380  Cyperus eragrostis L. P. Janeway 1987-5-7 2024 Butte Table Mountain Road where it is right at the base of the railroad fill and overlooking Thermalito Forebay. 91 Comment
  CHSC68382  Cyperus eragrostis L. P. Janeway 1988-5-29 2706 Butte Low in canyon of Little Chico Creek, about 2 mi south of Ten Mile House. 228 Comment
  JEPS110535  Cyperus eragrostis Lowell Ahart 2006-10-28 13516 Butte On the bottom of a small wash, Peter Ahart Ranch, about 1 1/2 miles north and 1 1/8 miles east of Honcut, about 12 miles southeast of Oroville 33 Comment
  UC1100468  Cyperus erythrorhizos Herbert L. Mason and Verne Grant 1946-8-14 13023 Butte canal near big pond by Sacramento Outing Club; Butte Sink Comment
  CAS-BOT-BC114272  Cyperus esculentus A. A. Heller 1939-8-26 15480 Butte Wet ground in a field opposite the sewer farm on the River Road west of Chico. Comment
  CHSC42844  Cyperus flavescens John Thomas Howell 1961-9-22 Butte Arch Rock Tunnel, along Highway 70, about 20 miles north-east of Oroville. Comment
  RSA724967  Cyperus flavescens L. Ahart 2006-10-8 13429 Butte East side of the North Fork of the Feather River, just east of where the river flows into a pool, on the west side of Hwy 70, about 0.5 mile north of the Cresta Power House. 610 Comment
  CAS-BOT-BC114223  Cyperus flavescens Lowell Ahart 1981-9-6 3123 Butte Arch Rock Tunnel, Feather River Highway. 500 Comment
  CHSC43783  Cyperus fuscus Vernon Oswald 1983-8-19 1005 Butte Upper Bidwell Park, Chico, 0.2 mi e of the end of the pavement on Upper Park Rd. Growing at the edge of Chico Creek. 91 Comment
  CHSC76013  Cyperus fuscus Lowell Ahart; Vernon H. Oswald 1999-8-13 8181 Butte Along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  SEINET3441886  Cyperus fuscus Unknown 2000-7-23 8603 Butte Chico, Chico, about 12 air miles southwest, about 2 miles southeast of Ordbend, about 1 mile southeast of Ord Ferry, northwest of Parrott Landing, east side of the Sacramento River 30 Comment
  CDA42934  Cyperus iria L. Ahart 2012-10-5 18476 Butte South edge of parking area at the restroom, end of road to the Larkin Road Boat Launch Area, about 1/4 mile west of Larkin Road, about 2 miles (air) southwest of the Oroville Airport. Comment
  UCD139947  Cyperus iria Whitney Brim-DeForest 2013-8-1 s.n. Butte Biggs Rice Station, NNW of the town of Biggs. In rice field located just on the north side of West Hamilton Road, ca. 1.74 miles west of Hwy 99. 29 Comment
  CHSC68396  Cyperus niger L. P. Janeway; C. A. Janeway 1986-10-12 1924 Butte Canyon of North Fork Feather River near Heinz Creek; at a small side creek and seeps along Hwy 70 about 2 mi east of the Pulga turnoff. 441 Comment
  CHSC97724  Cyperus niger Lowell Ahart 2007-11-3 14554 Butte Below the high water line of Lake Oroville, about 3/4 mile east of the Power House below Kunckle Reservoir, about 1 1/4 miles north of the Lime Saddle Campground, about 5 miles (air) southeast of Paradise. 259 Comment
  UCD141197  Cyperus niger John Thomas Howell 1959-9-20 34639 Butte eastern outskirts of Oroville. 60 Comment
  CHSC56608  Cyperus squarrosus L. P. Janeway; R. A. Schlising 1988-7-16 3036 Butte Vernal pool next to Humbug Summit Road ca 0.8 mi west of Butte Creek House. 1805 Comment
  CHSC76852  Cyperus squarrosus L. P. Janeway 1999-6-26 6489 Butte Sacramento Valley. Along east side of Sacramento River 1.0 mi southeast of Ord Ferry Road bridge. 29 Comment
  CHSC78489  Cyperus strigosus Lowell Ahart 2000-8-23 8661 Butte On the margins of a small pond, about 1/2 mile west of Pacific Heights road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. 42 Comment
  JEPS120149  Cyperus strigosus Lowell Ahart 2012-10-20 18501 Butte On the south side of Big Chico Creek, about 100 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  SEINET3164918  Cyperus vegetus L. S. Rose 1939-6-11 39277 Butte 6 mi. e. of Honcut 137 Comment
  CHSC100124  Cystopteris fragilis L. P. Janeway 2008-8-10 9538 Butte Northern High Sierra Nevada. Along Four Trees Road at crossing of South Branch Mill Creek, 4.5 road km east-southeast of Hwy 70. Along moist roadside gutter. 823 Comment
  CHSC28889  Cystopteris fragilis M. S. Taylor 1979-5-4 1998 Butte Along Millsap Bar Rd, ca. 4 mi ne of its jct with Brush Creek Rd, ca. 26 mi ne of Oroville. 1005 Comment
  CAS-BOT-BC190484  Dactylis glomerata Lowell Ahart 1987-7-8 5803 Butte Along Big Bar Mountain Road, about 3 miles southwest of Coyote Gap, southeast of Pulga. 1280 Comment
  JEPS116058  Dactylis glomerata Lowell Ahart 2009-6-19 15916 Butte Upper Bidwell Park, on the north side of Ten Mile House Road, about 100 yards west of the intrsection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 461 Comment
  JEPS95166  Danthonia californica var. americana Lowell Ahart 1997-7-11 7755 Butte about 2 air mi sw of Bald Mountain (se of Cold Creek, about 9 mi by road from Stirling City or about 2 air mi ne of Stirling City, along a small stream n of the dirt road) 1219 Comment
  RSA774130  Danthonia californica var. americana L. Ahart 2010-9-21 17230 Butte North side of the poor dirt road, about 1 air mile NE of Jones Meadow, about 2.5 air miles SE of Philbrook Reservoir 1900 Comment
  CHSC34232  Darmera peltata M. S. Taylor 1981-5-7 3636 Butte Along Sucker Creek, on e side of bridge, ca. 4 air mi sw of Feather Falls. 304 Comment
  SEINET10546586  Datura meteloides Mary Susan Taylor 1974-10-11 Taylor 329 Butte Along Sacramento River, in vicinity of the washout on River Road, ca. 10 mi W of Chico. Riparian Woodland. 61 Comment
  CHSC51278  Datura stramonium var. stramonium Lowell Ahart 1990-9-30 6611 Butte On the south side of the East Fork of Canyon Creek, below the high water line of Lake Oroville, about 1/8 mile north-east of the Canyon Creek Bridge across Lake Oroville. 243 Comment
  LA38372  Delphinium hansenii Lewis; 765 Butte 6.4 mi. E. of Oroville City Limits Comment
  CHSC21259  Delphinium nudicaule M. S. Taylor 1973-4-23 20 Butte 6 mi ne of Chico on Cohasset Hwy, ca. 20 ft n of horse trough. 237 Comment
  CHSC56776  Delphinium patens subsp. patens J. D. Jokerst; Lowell Ahart, M. S. Taylor 1980-4-7 567 Butte Edge of Swedes Flat Road, 0.8 mi east of its junction with Oroville-Bangor Hwy, ca 10 mi southeast of Oroville. Comment
  CHSC56877  Delphinium patens subsp. patens Eric F. Heinitz 1979-4-25 2 Butte North side of Skyway. Field ca. 30 m n of road. 243 Comment
  CHSC28157  Delphinium variegatum R. J. Goedl 1979-4-14 17 Butte Ca. 3.5 mi e of Highway 99, 20 ft n of Skyway. Field. 213 Comment
  CHSC31845  Delphinium variegatum L. Ahart 1974-3-18 323 Butte In pasture fields; Peter Ahart Ranch, Honcut. 45 Comment
  CAS-BOT-BC16981  Delphinium variegatum subsp. variegatum A. A. Heller 1902-5-13 5520 Butte Near Clear Creek Comment
  RSA755267  Delphinium variegatum subsp. variegatum L. Ahart 2009-5-15 15702 Butte About 20 yards E of the dirt road that is Ten Mile House Road, Upper Bidwell Park, about 3/4 air mile W of Highway 32, about 10 miles NE of Chico. 234 Comment
  HSC38033  Dendromecon rigida Thomas W. Nelson, Jane P. Nelson 1976-5-10 2484 Butte Just E of Magalia Comment
  CHSC64255  Deschampsia cespitosa S. C. Morey 1983-8-2 675 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  LA206368  Deschampsia cespitosa A. A. Heller; 1928-7-10 14621 Butte Butte Meadows Comment
  CHSC94287  Deschampsia cespitosa subsp. cespitosa Lowell Ahart 2006-7-25 13057 Butte In the west part of a large wet meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1569 Comment
  JEPS122069  Deschampsia cespitosa subsp. cespitosa Lowell Ahart 2014-7-13 19656 Butte About 150 yards southeast of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir Comment
  CDA31664  Deschampsia danthonioides Vernon H. Oswald & Lowell Ahart 1998-6-11 9223 Butte Butte Valley National Grassland near the junction of Meiss Lake-Sams Neck Rd. and Hwy. 97 ca. 5 mi. north of Macdoel. Comment
  CHSC6704  Deschampsia danthonioides Marilyn Lee 1968-4-19 135 Butte Field on W. side of Cherokee Road, Table Mt. Comment
  UCD62543  Deschampsia danthonioides R. N. Raynor; H. A. Hannesson 1941-5-9 Butte 10 miles S of Oroville on Marysville Road. Comment
  CHSC112523  Deschampsia elongata B. Castro 2012-10-18 1990 Butte Sacramento Valley. At N end of Chico, just S of the Chico Airport, along Sycamore Creek, ca 900 ft downstream (W) of its crossing under the Cohasset Hwy bridge. 54 Comment
  CHSC39497  Deschampsia elongata Lowell Ahart 1983-6-21 4073 Butte Along Bloomer Hill Road, about 3/4 mile west of the Oroville Quincy Highway, about 15 miles north-east of Oroville. 425 Comment
  UC1594695  Deschampsia elongata Lowell Ahart 1992-7-21 6808 Butte ca. 2 (air) mi. n.e. of Philbrook Reservoir (s. side of Coon Hollow) 1737 Comment
  CHSC636  Dicentra formosa R. M. Staley 1952-7-13 Butte Ponderosa Way. 609 Comment
  CHSC9699  Dicentra formosa Nancy Mosman 1971-7-3 53 Butte Along n side of Humboldt Road ca. 0.7 mi e of Butte Meadow Ranger Station. 1371 Comment
  UC1126524  Dicentra formosa P. L. Johannsen 1936-6-17 931 Butte 0.5 mi s Butte Meadows; Lassen National Forest, Paynes Creek Quad. 1341 Comment
  UC1362274  Dicentra formosa James Guthrie 1964-4-28 Butte ca 1.5 mi n Magalia (on Skyway) Comment
  CHSC19650  Dicentra formosa subsp. oregana K. R. Stern 1966-3-31 Butte From Montreal Botanical Gardens; Planted in 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
  SEINET10508817  Dichanthelium lanuginosum Mary Susan Taylor 1979-10-3 Taylor 2218 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
  UCD139225  Dichelostemma capitatum Craig Martz 1982-3-22 30 Butte east side of State Route 191 at intersection of Pentz Road. 91 Comment
  CHSC12184  Dichelostemma capitatum subsp. capitatum Lowell Ahart 1973-3-7 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC3856  Dichelostemma capitatum subsp. capitatum L. E. Dunkel 1965-3-14 6 Butte Ca. 50 yards w of Chico Rod and Gun Club building in Upper Bidwell Park. 35 Comment
  CHSC4224  Dichelostemma capitatum subsp. capitatum J. Senter 1967-3-10 26 Butte Abundant along Upper Bidwell Rd. from Horseshoe Lake east, Chico. 152 Comment
  CHSC4252  Dichelostemma capitatum subsp. capitatum J. W. Cherry 1967-3-26 Butte Ca. 50 yds. S. of Bidwell Park road, 0.3 mi. e. of Salmon Hole. 170 Comment
  CDA13865  Dichelostemma multiflorum G. F. Hrusa, T. D. Wilfred 1997-5-7 13723 Butte Sierra Nevada; SSE slope above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. Comment
  JEPS23896  Dichelostemma multiflorum A. A. Heller 1914-4-13 11287 Butte 11 mi from Chico (Chico-Oroville road) Comment
  CAS-BOT-BC501089  Dichelostemma multiflorum A. A. Heller 1915-5-28 11902 Butte Near Cohasset, Sierra foothills Comment
  SEINET10866725  Dichelostemma multiflorum Charles C. Parry Parry s.n. Butte Chico Comment
  CAS-BOT-BC502524  Dichelostemma volubile H. E. Brown 1897-4-15 210 Butte Near Clear Creek Comment
  UCD63992  Digitaria sanguinalis L. E. Hazeltine 1916-7-10 Butte Chico. Comment
  CHSC6615  Dioscorea M. MacArthur 1968-6-17 305 Butte Location: SE yard of Building U, on Chico State College campus. 60 Comment
  CHSC1761  Diplacus douglasii L. Oliver; D. Sloan 1935-3-17 Butte Salmon Hole on Chico Creek. 152 Comment
  CAS-BOT-BC150496  Diplacus grandiflorus John Thomas Howell; Gordon H. True 1967-7-12 43386 Butte North Fork Feather River near Cresta Powerhouse 426 Comment
  CHSC1752  Diplacus grandiflorus H. Summers 1929-5-19 Butte Comment
  CHSC44771  Diplacus grandiflorus R. Banchero 1980-6-19 258 Butte Along Concow Rd 4.95 mi N of its jct with Deadwood Rd, 5.8 mi N of the town of Concow. 646 Comment
  CDA41674  Diplacus grandiflorus James I. Mallory 1970-5-26 374 Butte Comment
  CAS-BOT-BC153207  Diplacus kelloggii L. P. Janeway 1993-5-20 4349 Butte Swayne Hill. South-facing road cutbank overlooking lower French Creek 746 Comment
  CAS-BOT-BC153216  Diplacus kelloggii A. A. Heller 1914-5-8 11374 Butte About the Clear Creek-Paradise grade Comment
  CHSC3270  Diplacus kelloggii M. L. Hillier 1966-3-28 Butte W. about 1/2 mile from Cherokee rd. in a pasture on top of Table Mt. Comment
  CHSC90152  Diplacus kelloggii Terril Wolt 1970-3-4 2 Butte Found on north side of Concow Creek where it empties into Lake Oroville, 16 mi north of Oroville. Comment
  SEINET13700565  Diplacus kelloggii M. J. Williams 1967-4-22 s.n. Butte Road from Oroville to Feather Falls. 244 Comment
  CAS-BOT-BC153214  Diplacus kelloggii C. C., Mrs. Bruce 1897-4-1 2102 Butte Little Chico Comment
  CHSC36085  Diplacus mephiticus R. A. Schlising 1982-7-24 4346 Butte E part of county, E of Stirling City at Ramsey Bar on Kimshew Creek. 1341 Comment
  CAS-BOT-BC154030  Diplacus torreyi E. B. Copeland 1929-7-18 462 Butte Jonesville 1550 Comment
  CHSC110049  Diplacus tricolor Lowell Ahart 2012-5-2 17962 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. 89 Comment
  SEINET8373690  Diplacus tricolor A. A. Heller 1914-4-24 11314 Butte Chico-Oroville road 8 miles from Chico. Comment
  CHSC50352  Disporum hookeri Vernon Oswald 1990-5-14 4214 Butte Marsh located ca. 1.5 mile south-southeast of Brush Creek. 950 Comment
  CDA35059  Dittrichia graveolens L. P. Janeway 2010-11-23 10221 Butte Sacramento Valley; Oroville; gravelly flat on northern edge of the south levee of the Feather River, just east of Centennial Park. Comment
  CAS-BOT-BC136237  Dodecatheon alpinum A. A. Heller 1915-6-11 11960 Butte Butte Meadows in the Sierra Nevada 1219 Comment
  RSA4135  Dodecatheon alpinum subsp. majus E. B. Copeland 1930-6-26 s.n. Butte Jonesville. 1550 Comment
  CHSC92570  Dodecatheon clevelandii subsp. patulum L. P. Janeway 2005-3-1 8338 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  CHSC67293  Dodecatheon hendersonii James D. Jokerst 1984-3-20 1955 Butte Peter Ahart Ranch on bluff top of the North Fork Honcut Creek. Growing within 0.2-0.3 mi of #1952 and 1953. Comment
  SEINET194858 Image available Dodecatheon hendersonii A. A. Heller 1938-4-3 15011 Butte Table Mountain, near Cherokee. Comment
  UCD118955  Dodecatheon hendersonii M. R. Nichols 1975-4-23 5 Butte 5.6 mi e of Chico on Skyway from Hwy 99. 304 Comment
  SEINET10449649  Dodecatheon hendersonii subsp. hendersonii Mary Susan Taylor 1981-3-16 Taylor 3405 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
  SEINET10449642  Dodecatheon jeffreyi Mary Susan Taylor 1980-3-19 Taylor 2395 Butte T19N R6E sw sec 8. Macabes Creek Canyon ca. 100 ft E of Lumpkin Rd, ca. 2.5 mi N of its jct with Forbestown Road, ca. 18 mi NE of Oroville. Cool, wet Ripar ian Woodland. 396 Comment
  CHSC31869  Dopatrium junceum L. Ahart 1974-7-20 555 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CDA6254  Dopatrium junceum L. L. Davis 1944-8-23 Butte Biggs Rice Field Station, Biggs. 0 Comment
  SD122580  Downingia bella Lowell Ahart 1984-5-7 4587 Butte Peter Ahart Ranch, ca. 1.5 mile north and 0.5 mile east of Honcut., 12 miles south of Oroville. 49 Comment
  SEINET10458513  Downingia bicornuta Lowell Ahart 1984-5-8 Ahart 4599 Butte T17N R4E. Ca. 2.5 mi N and 1.4 mi E of Honcut, ca. 12 mi S of Oroville. Valley Grassland; 40 m. 40 Comment
  SEINET12319544  Downingia bicornuta Unknown 1980-1 18 Butte N of Chico. T23N, R1W, Sec. 4. (Richardson Spgs. NW quad, 7.5') 58 Comment
  UC766390  Downingia cuspidata R. F. Hoover 1938-4-24 3251 Butte 3 mi e Richvale Comment
  SEINET12326977  Downingia cuspidata R. T. Retuta 1978-1 17 Butte 5 ft. E of Broyles Rd, ca 1500 W of Hwy 99, ca 8.5 mi NW of Chico, Sect. 10, T23N, R1W 62 Comment
  CAS-BOT-BC41343  Draba verna Lowell Ahart 1975-3-4 s.n. Butte Honcut. Peter Ahart Ranch. 45 Comment
  RSA325019  Draba verna L. Ahart 1984-2-27 4497 Butte Peter Ahart Ranch, NE of Honcut, ca 12 miles S of Oroville. 50 Comment
  SEINET10448471  Draba verna Lowell Ahart 1983-5-7 Ahart 3967 Butte Peter Ahart Ranch, ca. 3 mi ne of Honcut. Foothill Woodland; 50 m. 50 Comment
  JEPS116036  Draba verna var. aestivalis Lowell Ahart, John Dittes 2009-3-20 15503 Butte Open area along the Guardian Rock Trail, about 150 yards southwest of the Ten Mile House Road Trail, about 300 yards west of Highway 32, west of the intersection of Highway 32 and Ten Mile House Road, Upper Bidwell Park, about 10 miles northeast of Chico 407 Comment
  UC726882  Draperia systyla A. A. Heller 1938-5-28 15128 Butte Along Feather River Highway near Pulga 725 Comment
  CAS-BOT-BC401554  Drosera rotundifolia M. S. Taylor; L. Ahart 1981-8-16 4202 Butte Jones Meadow, ca. 3 mi s of Philbrook Reservoir, ca. 6 mi ne of Stirling City 1828 Comment
  CHSC36294  Drosera rotundifolia M. S. Taylor 1982-8-16 5004 Butte N side of spur road off 52513, 1 mi s of Jones Mea ... Field redacted by CHSC, contact the data manager for more information 1798 Comment
  CAS-BOT-BC401556  Drosera rotundifolia H. F. Copeland 1931-8-8 1421 Butte Jonesville Comment
  JEPS120572  Drymocallis glandulosa L. P. Janeway 2013-5-5 11097 Butte Northern High Sierra Nevada. Plumas National Forest; eastern slope of Bloomer Hill, 1.0 air km east of the top. Comment
  CHSC3432  Dryopteris arguta Judy Potter 1966-3-7 112 Butte Above Honey Run Bridge. 2.3 miles south The Skyway. Comment
  CHSC39979  Dryopteris arguta L. Ahart; P. Ahart 1983-7-24 4207 Butte At the Forbestown Reservoir, ca. 5 mi ne of Forbestown. 450 Comment
  RSA715710  Dryopteris arguta L. Ahart 2005-1-20 11473 Butte West side of McCabe Creek, above the high water mark of Lake Oroville, about 1/4 mile soutj of the siphon. about 3 mi northeast of Hurleton, about 7 mi east of Oroville Dam. 305 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
  SEINET10530135  Dryopteris arguta Mary Susan Taylor 1976-3-6 Taylor 1012 Butte Riparian Woodland along Macabe's Creek, ca. 50 ft E of Lumpkin Rd, ca. 1 mi NE of Forbestown Rd, ca. 12 mi E of Orovil le; shaded, wet, cool area. 244 Comment
  CAS-BOT-BC536732  Duchesnea indica Lee Richardson 1939-6-3 s.n. Butte Established at Richardson's Springs Comment
  CAS-BOT-BC428075  Dudleya cymosa subsp. cymosa Mrs. J. H. Morrison 1932-5-1 s.n. Butte Durham Comment
  UCSB64005  Dysphania ambrosioides Ahart, Lowell; Jokerst, Jim 1981-9-26 Butte Near the Sacramento River, about 6 miles west of Chico 36 Comment
  CHSC113116  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 1/2 miles (air) northeast of Hurleton. 267 Comment
  CHSC52010  Dysphania pumilio L. P. Janeway; C. A. Janeway 1986-11-23 1944 Butte Foreman Creek access to Lake Oroville. On a +/- muddy and gravelly point in Lake Oroville ca 20-40 ft low below high watr mark. 274 Comment
  CHSC74084  Dysphania pumilio B. Castro 1996-8-20 716 Butte Ca 5 air mi N of Brush Creek, ca 0.25 mi S of Rogers Cow Camp via 'J' spur rd S of USFS Rd 23N15. 1222 Comment
  CHSC112660  Echinochloa colona Lowell Ahart 2013-10-12 19106 Butte On the east side of Palermo Honcut Highway, about 20 yards south of Palermo Road, Palermo. 51 Comment
  JEPS120722  Echinochloa colona Lowell Ahart 2013-10-12 19106 Butte On the east side of Palermo Honcut Highway, about 20 yards south of Palermo Road, Palermo. Comment
  JEPS96001  Echinochloa crus-galli Vernon H. Oswald and Lowell Ahart 1996-5-27 7664 Butte U.S. Fish and Wildlife Service parcel between Seven Mile Lane and Sacramento River (on the s side of Tract 1.1, Sanctuary II); Sacramento River National Wildlife Refuge, Llano Seco Unit 33 Comment
  SBBG116106  Echinochloa crus-galli B. Crampton 1963-9-9 6887 Butte ca. 5 mi NW of Biggs, Biggs Rice Experiment Stn Comment
  SEINET6830746 Image available Echinochloa crus-galli L. Ahart 1984-9-17 4792 B Butte Peter Ahart Ranch, ca. 2.3 mi N and 0.3 mi E of Honcut, ca. 12 mi S of Oroville 50 Comment
  SEINET10509298  Echinochloa crus-galli var. frumentacea Lowell Ahart 1984-9-17 Ahart 4791 B Butte Peter Ahart Ranch, ca. 2.3 mi N and 0.3 mi E of Honcut, ca. 12 mi S of Oroville. Valley Grassland; 50 m elev. 50 Comment
  SEINET3928604  Echinochloa muricata Lowell Ahart 1984-9-17 4792 Butte Peter Ahart Ranch, ca. 2.3 miles north and 0.3 miles east of Honcut, ca. 12 miles S of Oroville.; 0 50 Comment
  JEPS124280  Egeria densa Lowell Ahart 2015-11-18 20653 Butte About 2 miles southeast of intersection of Palm Avenue and Larkin Road, about 5 miles (air) northeast of Gridley. Comment
  CHSC82218  Elatine ambigua Lowell Ahart 2002-4-22 9522 Butte On the bottom and sides of ponds and ditches, east of Parking Lot 10, Gray Lodge State Wildlife Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  POM312315  Elatine ambigua H. L. Mason, Verne Grant, C. T. Mason 1946-8-15 13052 Butte #833 Irrigation Ditch, near caretaker's house, Greylodge Game Refuge, Butte Sink. Comment
  SEINET10447969  Elatine rubella Mary Susan Taylor 1978-7-22 Taylor 1850 Butte On SE corner of Richvale East Road and Erickson Road, Richvale; in rice field. 30 Comment
  CHSC116026  Eleocharis acicularis Lowell Ahart 2015-10-20 20566 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
  CHSC78285  Eleocharis acicularis Lowell Ahart 2000-7-11 8576 Butte Pond edges, 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
  CDA38952  Eleocharis acicularis var. acicularis L. Ahart 2000-10-21 8711 Butte About 100 feet north of Hamilton Road, about 1/8 mile east of Riceton Road, Rice Experiment Station northwest Biggs, 2 1/4 miles (air) north of Biggs Comment
  JEPS98319  Eleocharis acicularis var. occidentalis Lowell Ahart 2000-6-17 8487 Butte 7 air mi N of Oroville Oroville (North Table Mountain, W side of Cherokee Rd, large spring-like area, W of the lone oak tree, W of the cow shute and large parking area) 403 Comment
  CHSC45116  Eleocharis bolanderi Vernon Oswald 1988-5-18 3317 Butte Honey Run Rd. 0.7 mi sw of the Skyway, Paradise. 426 Comment
  CHSC45313  Eleocharis coloradoensis Vernon Oswald 1988-9-21 3703 Butte Rancho Arroyo Chico. East side of Sacramento River just upstream from the Washout (Chico Landing Site). 35 Comment
  CHSC83294  Eleocharis decumbens L. P. Janeway; B. Castro 2002-7-7 7608 Butte High Cascade Range. Soggy sedge-dominated meadow below the head of Keyser Creek and just below the dirt road; 0.5 km east of Bald Mountain Lookout. 1695 Comment
  JEPS98588  Eleocharis decumbens Lowell Ahart 2000-6-29 8541 Butte 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
  CAS-BOT-BC113367  Eleocharis engelmannii Beecher Crampton 1957-9-17 4623 Butte Biggs Rice Experiment Station, 5 mi NW of Biggs. Comment
  CAS-BOT-BC112785  Eleocharis macrostachya John Thomas Howell 1959-9-20 34660 Butte Lower foothills, eastern outskirts of Oroville. 60 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
  CHSC94556  Eleocharis macrostachya Lowell Ahart 2006-9-13 13315 Butte South edge of the North Fork of the Feather River, about 100 yards west of Mill Creek, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville. 431 Comment
  JEPS127225  Eleocharis macrostachya Lowell Ahart 2016-5-30 20893 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
  CDA38946  Eleocharis macrostachya G. D. Barbe, T. C. Fuller 1982-6-14 3678 Butte Black Bart Road, 1.25 miles west of Forbestown Road. Comment
  CHSC78399  Eleocharis pachycarpa Lowell Ahart 2000-7-18 8597 Butte On the margins of a small pond, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. 42 Comment
  CHSC44294  Eleocharis quadrangulata V. Oswald 1988-6-8 3361 Butte Southeast end of the large pond in the Oroville Wildlife Area on the west side of the Feather River at about the level of Walnut Ave. 32 Comment
  CHSC78200  Eleocharis quinqueflora Lowell Ahart 2000-5-30 8411 Butte About 1/4 mile northeast of Kunkle Reservoir, east of the Pentz Magalia Road, about 2 miles south of Paradise. 548 Comment
  CDA33182  Eleocharis quinqueflora L. Ahart 2000-7-7 8555 Butte Just west of the bridge across Fall River, on the north side of Fall River, about 3 miles north of Lumpkin Ridge Road, about 5 miles (air) northeast of Feather Falls Comment
  CHSC113146  Eleocharis radicans Lowell Ahart 2013-11-13 19238 Butte Below the high water line of Lake Oroville, along the sides of Sucker Creek, about 30 yards north of the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 244 Comment
  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
  JEPS98377  Eleocharis radicans Lowell Ahart 2000-10-2 8700 Butte 2 mi SE of Ordbend (N of a large pond on E side of Sacramento River, NW of Parrott Landing, 1 mi SE of Ord Ferry, 12 air miles SW of Chico) 32 Comment
  SEINET7587178 Image available Eleocharis suksdorfiana Lowell Ahart 2000-7-5 8552 Butte About 100 yards west of the Skyway, about 1 mile south of Inskip, about 4 1/2 miles north of Stirling City. Comment
  CHSC69974  Eleusine indica L. P. Janeway 1997-10-5 5367 Butte Campus of California State University, Chico; within the city of Chico. In landscaping around Holt Hall. 60 Comment
  CAS-BOT-BC221629  Elymus arizonicus Lowell Ahart 1988-6-21 6052 Butte Along Poe Power House Road, about 1/2 mile north of the Poe Power House, about 1 1/2 miles south-east of Jarbo Gap 365 Comment
  CHSC25268  Elymus glaucus M. S. Taylor 1977-6-25 1364 Butte On Sacramento River, ca. 10 mi e of Chico on River Rd. 30 Comment
  CHSC46230  Elymus glaucus Pauleen Broyles 1987-6-26 1065 Butte Ca 1 air mile n.e. of Inskip. On a gravel bar in West Branch of North Fork of Feather River, ca 90 m. above road-crossing bridge. 1400 Comment
  CAS-BOT-BC234102  Elymus multisetus Lowell Ahart 1977-6-16 1506 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC234108  Elymus multisetus John Thomas Howell 1962-6-15 37528 Butte Magalia, Sierra Nevada 731 Comment
  CDA13316  Elymus stebbinsii G. F. Hrusa, T. D. Wilfred 1996-7-9 13162 Butte Sierra Nevada; Dry, sunny, sandy bank on USFS N60 approx. immed. E of bridge over Marble Creek. Steep, dry rocky area, slopes near vertical. Perennial, uncommon here. Comment
  JEPS113255  Elymus stebbinsii subsp. septentrionalis Lowell Ahart 2007-5-29 13936 Butte On the east side of Bald Rock Dome, on the west side of the Dome Trail, trail leads to the Middle Fork of the Feather River, about 1 3/4 miles by the trail from the trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Bi 585 Comment
  CHSC61536  Elytrigia intermedia subsp. barbulata Lowell Ahart 1993-6-26 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC12627  Enemion occidentale M. S. Taylor 1974-3-16 81 Butte In Devil's Kitchen, Upper Bidwell Park, Chico. Comment
  UC204379  Epilobium brachycarpum A. A. Heller 1914-7-23 11602 Butte edge of the forest about Chico Meadows 1219 Comment
  UC873511  Epilobium brachycarpum A. A. Heller 1916-9-5 12648 Butte 8 mi n Oroville Comment
  SEINET10841098  Epilobium brachycarpum Mary Susan Taylor 1978-9-8 Taylor 1894 Butte Along flood control slough, ca. 4 mi N of Chico, along Hwy 99. 61 Comment
  CAS-BOT-BC166845  Epilobium canum subsp. latifolium Lowell Ahart 1980-9-10 2627 Butte 1 mile north-east of Milsap Bar 900 Comment
  CHSC51003  Epilobium ciliatum subsp. ciliatum Lowell Ahart 1990-7-4 6540 Butte Near McCabe Creek, below the high water line of Lake Oroville, about 1/2 mile south-west of the Enterprise Bridge across Lake Oroville. 243 Comment
  CHSC102993  Epilobium densiflorum Lowell Ahart 2009-6-30 15962 Butte West of Guardian Rock Trail, about 5/8 mile (air) southwest of the intersection of Ten Mile House Road and Highway 32, Upper Bidwell Park, about 10 miles northeast of Chico. Comment
  JEPS124102  Epilobium densiflorum Lowell Ahart 2015-6-6 20203 Butte About 5/8 mile northwest of the iron gate along Cherokee Road, Beatson Hollow, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  CHSC11780  Epilobium obcordatum E. B. Copeland 1931-7-13 664 Butte Jonesville. At 'the Summit. 2000 Comment
  CHSC45336  Epilobium obcordatum Vernon Oswald 1983-8-17 987 Butte Trail between Humboldt Summit and Humboldt Peak, n-e of Jonesville. 2097 Comment
  CHSC109598  Epilobium pallidum Lowell Ahart 2012-5-31 18124 Butte About half way between Salmon Hole trail and Parking Area O, Upper Bidwell Park. 121 Comment
  JEPS117208  Epilobium torreyi Lowell Ahart 2010-5-14 16659 Butte Area of erosion control, Disc Golf Area, about 100 yards west of the entrance to the Disc Golf Area, about 120 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 372 Comment
  JEPS121918  Epilobium torreyi Lowell Ahart 2014-7-10 19621 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  CHSC20899  Equisetum arvense M. S. Taylor 1975-8-31 891 Butte On Ernies Island, in Butte Creek, ca. 50 ft s of Humboldt Rd, ca. 1/2 mi e of Butte Meadows. 609 Comment
  SBBG17368  Equisetum arvense M. Vincent 1962-4-15 180 Butte 1 mi S of Stirling City on Skyway near small stream Comment
  CHSC33694  Equisetum laevigatum L. Ahart 1981-4-9 2752 Butte Near the edge of North Honcut Creek on Peter Ahart Ranch, ca. 1 mi n and 3 mi e of Honcut. 50 Comment
  CHSC38236  Equisetum laevigatum Vernon Oswald 1983-3-19 195 Butte Upper Bidwell Park, Chico, at the turn-around at the e end of Upper Park Rd. 207 Comment
  JEPS110229  Equisetum laevigatum Lowell Ahart 2006-7-16 12984 Butte In the west edge of a large wet meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
  RSA285081  Equisetum laevigatum J. T. Howell 1975-6-15 51072 Butte Skyway between Chico and Paradise at Butte Creek. 61 Comment
  SEINET10530314  Equisetum telmateia var. braunii Mary Susan Taylor, K. Tharp 1982-4-8 Taylor 4288 Butte T19N R4E border sac 1/2. Oroville quad. Along both side of Oroville Dam Blvd (Alt. 40), ca. 1.5 mi s of Oroville Dam Visitors Center, Oroville. Foothill Woodland; 800 ft. 244 Comment
  UC1562294  Eragrostis hypnoides Lowell Ahart 1990-7-15 6557 Butte about 1.25 mi nw Enterprise Bridge across Lake Oroville (e of Enterprise Boat Launch Area, just below the high water line of Lake Oroville); Lake Oroville 243 Comment
  SEINET10954137  Eragrostis mexicana subsp. virescens Lowell Ahart 1999-10-28 Ahart 8306 Butte T20N, R1W, Section not surveyed. Large disturbed area along the east side of the Sacramento River, northwest of Parrott Landing, aout 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CAS-BOT-BC284081  Eragrostis pectinacea var. pectinacea Lowell Ahart 1984-9-24 1492 Butte The edge of Middle Honcut Road, about 3/4 mile east of Highway 70, about 12 miles south of Oroville 35 Comment
  CAS-BOT-BC278511  Eragrostis pilosa var. pilosa Lowell Ahart 1977-8-14 1492 Butte Peter Ahart Ranch, Honcut 50 Comment
  CHSC83002  Eragrostis pilosa var. pilosa Lowell Ahart 2002-9-7 9927 Butte On the east side of Cherokee Road, north of the Thermalito Diversion Canal, on the west side of the water purification pond, about 1 mile north of Oroville. 130 Comment
  UC1562287  Eragrostis pilosa var. pilosa Lowell Ahart 1990-8-15 6585 Butte about 1/2 mi sw Enterprise Bridge across Lake Oroville (across Lake Oroville, along McCabe Creek); below high water line Lake Oroville 228 Comment
  CHSC105793  Eremocarpus setiger Lowell Ahart 2010-9-12 17148 Butte Below the high water line of Lake Oroville, about 150 yards north of the South Fork of the Feather River, about 50 yards east of Sucker Creek, about 1/4 mile (air) northwest of the Ponderosa Dam. 243 Comment
  CHSC35050  Eremogone cliftonii R. A. Schlising; R. Banchero 1981-6-29 4124 Butte NE part of county, 0.5 mi SW of Ramsey Bar on Little Kimshew Creek. 1417 Comment
Read comments
Jul 8 2014
  CHSC91174  Eremogone cliftonii L. P. Janeway 2005-5-29 8404 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
Read comments
Jul 8 2014
  CHSC28608  Erigeron canadensis M. S. Taylor 1977-11-10 1515 Butte At jct of Chico-Butte Hwy and Ord Ferry Rd, ca. 6 mi s of Chico. 36 Comment
  CHSC69447  Erigeron canadensis Lowell Ahart 1997-9-6 7886 Butte Near the McNab Cypress grove, near the steel tower power line, along the sides of a logging road, about 1/4 mile west of Rim Road, about 2 miles (air) northeast of Concow Reservoir. 731 Comment
  CAS-BOT-BC295165  Erigeron inornatus Lowell Ahart 1988-7-28 6138 Butte Hillside at the north side of the dam at Lost Creek Reservoir 1036 Comment
  CAS-BOT-BC295420  Erigeron inornatus var. calidipetris H. F. Copeland 1920-8-12 123 Butte Jonesville 1219 Comment
  CHSC33714  Erigeron inornatus var. inornatus J. D. Jokerst; R. A. Schlising, B. Banchero 1981-6-13 1338 Butte Road to Milsap Bar on the Middle Fork of the Feather River 1.7 mi below it's junction with the road to Big Bald Rock. Alongside road. Comment
  JEPS117381  Erigeron lassenianus var. lassenianus L. Ahart 2010-9-21 17227 Butte South side of a poor dirt road, about 1 air mile NE of Jones Meadow, about 2.5 air miles SE of Philbrook Reservoir 1900 Comment
  CHSC323  Erigeron philadelphicus R. M. Staley 1952-7-14 Butte Butte Creek. Comment
  JEPS120723  Eriochloa acuminata var. acuminata Lowell Ahart 2013-10-12 19108 Butte On the east side of Palermo Honcut Highway, about 20 yards south of Palermo Road, Palermo. Comment
  CHSC33364  Eriodictyon californicum S. Posner 1972-9-24 Butte Betweem dredger tailings off Humbug Rd. 200 yds. south of Humbug Rd., 3 miles east of Skyway. Comment
  RSA769683  Eriodictyon californicum L. Ahart 2009-4-22 15591 Butte W side of Guardians Trail, about 100 yards N of Pine Trail, Upper Bidwell Park, W of the intersection of Highway 32 and Ten Mile House Road, about 10 miles NE of Chico. 382 Comment
  CHSC29787  Eriogonum lobbii M. S. Taylor; R. S. Schlising, J. D. Jokerst 1980-6-14 2872 Butte Little Bald Rock, on granite dome, ca. 4 mi e of Lake Madrone. 1016 Comment
  SEINET10838767  Eriogonum lobbii Mary Susan Taylor 1980-6-14 Taylor 2872 Butte T21N R6E nw sec 29. Big Bend quad. Little Bald Rock, on granite dome, ca. 4 mi E of Lake Madrone. 1016 Comment
  CHSC30839  Eriogonum luteolum var. luteolum M. S. Taylor 1978-7-18 1670 Butte On w side of Hwy 32 on edge of Yellow Pine Forest, in dry open area, ca. 1/4 mi n of Forest Ranch. 701 Comment
  CAS-BOT-BC261718  Eriogonum nudum var. oblongifolium A. A. Heller 1914-7-22 11585 Butte Little Summit near Butte Meadows 1463 Comment
  SEINET10479531  Eriogonum nudum var. oblongifolium Mary Susan Taylor 1975-9-19 Taylor 916 Butte Ca. 0.5 mi N of Magalia, ca. 50 ft E of Skyway; serpentine area surrounded by Yellow Pine Forest. 610 Comment
  CAS-BOT-BC269843  Eriogonum nudum var. pubiflorum E. B. Copeland 1930-7-16 s.n. Butte Jonesville 1500 Comment
  SEINET11934611  Eriogonum nudum var. pubiflorum L. P. Janeway 1988-1 2967 Butte Pulga quad. nr. roadside into French Creek .6 mi S of Coyote Gap. Shaley SE-faceing ridge outcrop 1219 Comment
  CHSC92286  Eriogonum umbellatum var. ahartii L. P. Janeway; B. Castro 2005-8-1 8516 Butte Northern High Sierra Nevada. Plumas National Forest; open serpentine slope/knob 0.5 km south of the Paradise Lake dam; east side of Little Butte Creek. 756 Comment
  CHSC58941  Eriogonum umbellatum var. nevadense Lowell Ahart 1992-7-29 6868 Butte About 1 mile east of the Carr Mine, about 1/2 mile northwest of Lotts Lake. 1828 Comment
  CAS-BOT-BC262212  Eriogonum ursinum F. N. Bassett 1923-6-16 s.n. Butte Jonesville Comment
  LA207080  Eriogonum ursinum E. B. Copeland; 1930-7-6 sn Butte Jonesville 624 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
  CAS-BOT-BC262341  Eriogonum vimineum John Thomas Howell 1959-9-20 34615 Butte Along Feather River about 1 mi. west of Oroville 45 Comment
  UC171430  Eriophyllum lanatum var. croceum A. A. Heller 1913-6-7 10806 Butte near Stirling 1074 Comment
  CAS-BOT-BC308159  Eriophyllum lanatum var. grandiflorum John Thomas Howell 1962-6-15 37523 Butte Magalia, Sierra Nevada 731 Comment
  CAS-BOT-BC308170  Eriophyllum lanatum var. grandiflorum A. A. Heller 1914-6-22 11484 Butte North slope at Little Summit near Butte Meadows 1463 Comment
  CDA13725  Eriophyllum lanatum var. grandiflorum G. F. Hrusa, T. D. Wilfred 1997-6-27 13903 Butte Sierra Nevada; Feather Falls/Cascade Rd. to USFS 21N22Y, 1 km. E to summit. Comment
  CHSC329  Eriophyllum lanatum var. grandiflorum M. Roberson 1956-5-21 Butte Near Paradise along Skyway. 548 Comment
  CHSC38346  Eriophyllum lanatum var. grandiflorum Vernon Oswald 1983-4-25 389 Butte Upper Bidwell Park, Chico, on the north rim ca. 0.4 mi w of the power lines. 182 Comment
  RSA302658  Eriophyllum lanatum var. grandiflorum J. R. Shevock 1972-5-19 1781 Butte Hwy 70, Feather River Canyon. 610 Comment
  RSA727541  Eriophyllum lanatum var. grandiflorum Ken Osborne 2007-5-13 s.n. Butte Sierra Nevada Foothills: along Ponderosa Way at Mud Creek, c. 1.5 mi. SE of Cohasset. 701 Comment
  UC1118260  Eriophyllum lanatum var. grandiflorum J. E. Sowder 1933-6-6 80 Butte 0.5 mi nw of Nelson's Bar; Chico Quadrangle 457 Comment
  UC1577644  Eriophyllum lanatum var. grandiflorum E. B. Copeland 1930-7-11 492 Butte Jonesville 1550 Comment
  SEINET5320907  Erodium botrys Unknown 2002-3-27 6154 Butte Chico; At the junction of State Highway 99 and Hamilton Nord Cana Highway, about 8 miles northwest of Chico 40 Comment
  CHSC25361  Erysimum capitatum var. capitatum Marc P. Hayes 1977-4-22 5 Butte Ca. .8 km sw of Pulga, 110 m n of North Fork of Feather River, along Pulga Rd., ca. 100 m from juncture with Hwy 70. 490 Comment
  CHSC51017  Erythranthe cardinalis Lowell Ahart 1990-8-15 6581 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
  CHSC94652  Erythranthe floribunda Lowell Ahart 2006-9-28 13374 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
  CHSC112893  Erythranthe glaucescens Tim Hanson 2014-4-3 18 Butte Southrn Sierra Nevada Foothills. Upper Bidwell Park, approximately 2.5 air km east of Horseshoe Lake. Directly west of Upper Trail where it crosses a small perennially damp drainage north of the Bear Hole. 186 Comment
  CHSC27272  Erythranthe glaucescens P. Moyer 1972-4-16 173 Butte CSUC Campus. S. bank Chico Ck., e of Warner St. Bridge. 60 Comment
  CHSC44677  Erythranthe glaucescens R. Banchero 1980-4-11 105 Butte Along Honeyrun Rd ca 3.6 mi NE of the Covered Bridge, Ca 3.7 mi SW of Paradise. 243 Comment
  CHSC90150  Erythranthe glaucescens J. Lund 1980-4-19 Butte On the trail leading up to the falls above Richardson Springs 2.0 mi east of Chico. 121 Comment
  CHSC102412  Erythranthe guttata Lowell Ahart 2009-6-19 15926 Butte On wet soil, drainage in meadow, about 30 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
  CHSC41284  Erythranthe guttata S. C. Morey 1983-7-21 502 Butte Cherry Hill Meadow. On n side of Humbolt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  CHSC90015  Erythranthe guttata Rebecca L. Hill 1990-4-19 13 Butte W side of the East Branch of Clear Creek, ca. 200 yds ne of Clear Creek Cemetery Road. Ca. 6 mi s of Paradise off of Clark Rd. 121 Comment
  CHSC43762  Erythranthe pulsiferae Vernon oswald; Lowell Ahart 1987-6-10 2979 Butte Forest Service road joining Humbug Rd. in about the center of Section 22, in the first drainage e of Humbug Rd. 1874 Comment
  CHSC49009  Erythranthe pulsiferae Vernon Oswald 1987-6-9 2973 Butte Lily Pond 0.25 mi se of the benchmark on the s edge of Humbuf Rd. between Butte Creek House and Snag Lake. 1813 Comment
  POM298049  Erythranthe pulsiferae A. A. Heller 1915-4-12 11805 Butte Near Cohasset. Comment
  CHSC32653  Erythronium multiscapideum M. S. Taylor; D. Hemphill 1981-3-18 3416 Butte S side of Hwy 70 just e of Pulga Bridge by turnout. 487 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
  CHSC55459  Erythronium multiscapideum Charlie Crannell 1991-4-13 17 Butte Along Doe Mill Road 1000 ft s of Royal Drift Mine access road. 707 Comment
  CHSC27786  Eschscholzia caespitosa Rene T. Retuta 1978-4-4 2 Butte .50 miles se of Cherokee Rd., ca. 5 miles n of Oroville, North Table Mountain. 396 Comment
  CAS-BOT-BC402638  Eschscholzia caespitosa A. A. Heller 1914-4-16 11296 Butte On the Chico-Centerville road 8 miles from Chico Comment
  CHSC21013  Eschscholzia californica M. S. Taylor 1975-10-4 962 Butte On s edge of Kunkle Reservoir, ca. 50 ft e of Pentz-Magalia Hwy, ca. 1mi s of Paradise. 609 Comment
  RSA178627  Eschscholzia lobbii A. A. Heller 1928-4-30 14537 Butte Along the Neal road about 4 miles below Paradise Comment
  HSC92486  Eschscholzia lobbii N. Wynne, M. Peckham, J. Bamesberger 1994-3-30 24 Butte Table Mtn., Cherokee Rd., about 2 mi. from Hwy. 70 Comment
  UCSB63594  Eschscholzia lobbii Cederborg, Mark 1995-4-18 Butte Ca. 200 yds w of Cherokee Rd; ca. 6 mi n of Oroville; Oroville U.S.G.S. Quadrangle; 15'. Ne 1/4 Sect 17. T20.R4E 390 Comment
  CAS-BOT-BC312033  Eucephalus breweri Vernon Oswald; Lowell Ahart 1987-8-5 3178 Butte Near Humboldt Peak 2148 Comment
  CDA13267  Euonymus occidentalis var. occidentalis G. F. Hrusa, T. D. Wilfred 1996-7-9 13115 Butte Plumas National Forest; Jordan Creek at old Picnic Area above falls before confluence with Marble Creek. Comment
  SEINET10453755  Euphorbia crenulata Mary Susan Taylor 1980-5-8 Taylor 2615 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
  UCD142580  Euphorbia maculata L. Ahart 1981-9-26 3200 Butte Along the Sacramento River, ca. 6 mi. W of Chico. 40 Comment
  CAS-BOT-BC202424  Euphorbia ocellata A. A. Heller 1913-9-24 11143 Butte Table Mountain Olive Ranch 8 miles north of Oroville 121 Comment
  CAS-BOT-BC202426  Euphorbia ocellata A. A. Heller 1919-9-5 12645 Butte Hills 8 miles north of Oroville Comment
  SEINET10841056  Euphorbia serpillifolia Mary Susan Taylor 1978-9-8 Taylor 1887 Butte Along flood control slough, ca. 4 mi N of Chico, along Hwy 99. 61 Comment
  SD122516  Festuca californica Lowell Ahart, Peter Ahart 1984-6-10 4701 Butte Yellow Pine Forest, about 2 miles southwest of Forbestown Diversion Dam, northeast of Forbestown 700 Comment
  CAS-BOT-BC282486  Festuca elmeri A. A. Heller 1902-5-16 5562 Butte East Butte, Marysville Buttes Comment
  CHSC50389  Festuca elmeri Vernon Oswald 1990-6-1 4273 Butte Butte Creek Trail, ca. 1.75 miles north-northwest of Lake De Sabla. On slopes along trail. 579 Comment
  UC1562328  Festuca elmeri Vernon Oswald and Lowell Ahart 1990-6-27 4325 Butte ca 0.5 mi (air) ne Junction House (site) (Jordan Creek-Marble Creek Rd (23N60) between Spoon Ravine and Marble Creek, e side of Oro-Quincy Hwy) 1109 Comment
  CHSC109547  Festuca microstachys L. P. Janeway 2012-6-7 10865 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
  CAS-BOT-BC278800  Festuca occidentalis Lowell Ahart 1983-6-26 4165 Butte Along bare edges of Bean Creek Road, ca. 0.5 mi. S of Little Bald Rock, ca. 20 mi. NE of Oroville 1000 Comment
  CAS-BOT-BC278925  Festuca rubra Lowell Ahart 1987-7-8 5810 Butte Along Walker Plains Road, ca. 1/8 mi. N of Coyote Gap, ca. 5 mi. E of Pulga 1280 Comment
  CHSC73716  Festuca rubra H. Durio 1995-8-1 Butte Pinkard Meadow. Meadow along Pinkard Creek, ca 0.7 air mi W of Sly Creek Reservoir and 0.5 mi E of Mooreville Ridge, via a spur off USFS Rd 22N24.5. In meadow E of road. 1143 Comment
  CHSC102413  Ficus carica Lowell Ahart 2009-6-30 15976 Butte On dry soil, along a small flowing stream, about 20 yards south of the fence, about 150 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. 242 Comment
  CHSC12611  Ficus carica S. Posner 1972-9-24 Butte Ca. 150 yds S of Humbug Road, 3 mi E of Skyway. Comment
  CHSC77487  Ficus carica Anna Pinsky 1997-4-24 23 Butte Chico, Upper Bidwell Park, Salmon Hole, adjacent to Big Chico Creek. Comment
  JEPS115276  Ficus carica Lowell Ahart 2009-6-30 15976 Butte On dry soil, along a small flowing stream, about 20 yards south of the fence, about 150 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 242 Comment
  CHSC50553  Floerkea proserpinacoides Vernon Oswald; Lowell Ahart 1990-7-5 4352 Butte Headwaters of Willow Creek, 0.7 mi (odometer) west of Humbug Rd along a logging road just south of Cold Springs (near Humbug Summit), ca. 4 mi east of Jonesville. 1950 Comment
  CHSC42909  Foeniculum vulgare Lowell Ahart 1987-7-12 5820 Butte Along North Honcut Creek, about 2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 64 Comment
  CHSC79562  Fragaria vesca G. F. Hrusa; T. D. Wilfred 1997-5-1 13700 Butte Northern California. Sierra Nevada. NE side of upper end of Paradise Lake. Where last tributaries from E enter. [Lat./Long. on label is '39 52 N; 121 35 W']. 775 Comment
  CAS-BOT-BC55657  Frangula purshiana C. R. Quick 1953-8-11 53 -126 Butte Rag Dump Meadow se. of Stirling City Comment
  CHSC33277  Frangula purshiana R. A. Schlising 1981-6-28 4118 Butte NE part of county, E of Stirling City and W of Little Kimshew Creek on E side andesitic Table Mt. 1767 Comment
  CHSC109215  Frangula rubra B. Castro; L. P. Janeway 2004-6-13 1467 A Butte Northern High Sierra Nevada. Along Old Forbestown Road 1.6 road mi SE of Forbestown Reservoir Road; 2.25 air mi E of Forbestown; near headwaters of Costa Creek; 0.15 rd mi NW of jcn with Abernathy Road. 829 Comment
  CHSC23678  Fraxinus dipetala M. S. Taylor 1976-4-27 1088 Butte Ca. 50 ft e of Cohasset Hwy, ca. 8 mi n of Chico. 137 Comment
  CHSC42222  Fremontodendron californicum Mary H. Hardin 1986-4-21 19 Butte Ca 1 1/2 mi ese of Cohasset Hwy, 9 mi nne of Chico in chaparral. 518 Comment
  CHSC9279  Fritillaria affinis D. C. Burns 1971-3-6 99 Butte Ca. 1 mi e of the intersection of Manzanita Ave. and Centenial Ave. (lower Big Chico Creek Canyon, called the Fern Banks). 82 Comment
  CAS-BOT-BC130313  Fritillaria eastwoodiae L. C. Hanson 1987-4-27 s.n. Butte De Sabla Reservoir, near Magalia Comment
  SEINET10469654  Fritillaria eastwoodiae Mary Susan Taylor 1979-3-20 Taylor 1947 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
  CAS-BOT-BC124014  Fritillaria eximia Mrs. J. H. Morrison 1932-3-1 s.n. Butte On the Pence grade, east of Paradise Comment
  CHSC34223  Fritillaria recurva M. S. Taylor 1981-5-21 3784 Butte Jct of Camp Creek and rd 23N10, ca. 4 mi n of Pulga on Feather River Hwy 70. 1005 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
  POM109786  Fritillaria recurva C. C. Bruce 1897-02 2026 Butte Little Chico Comment
  CHSC82424  Galium aparine Lowell Ahart 2002-5-7 9630 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
  CHSC33859  Galium bolanderi J. D. Jokerst; B. Banchero, R. A. Schlising 1980-6-16 854 Butte Carpenter Ridge, 50 met N of Humboldt Rd at a point 1.9 mi N of it's jct with Hwy 32. Comment
  CHSC86431  Galium bolanderi Jenny Marr 1994-6-13 85 Butte Located in Northern Sierra Nevada, north of the town of Magalia, on an exposed serpentine outcrop belonging to LNF. Site approx. 0.3 air miles north of Magalia Reservoir. 759 Comment
  HSC97151  Galium bolanderi L. Ahart 2006-6-9 12661 Butte E side of Bardees Bar Rd. 1/8 mile W of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) SW of Pulga 386 Comment
  UCD121612  Galium bolanderi Harriet Sindel 1970-5-10 8 Butte Cohasset Highway 11.5 miles northeast of intersection with Keefer Lane, Cohasset. 609 Comment
  CHSC86597  Galium divaricatum L. P. Janeway 2003-5-7 7779 A Butte Northern Sierra Nevada Foothills. Kelly Ridge between Lake Oroville Visitors Center and south end of Oroville Dam. 329 Comment
  CDA6669  Galium mollugo Sterling O. Mattoon, L. C. Going 1962-6-19 Butte Southwest of Nord Avenue & Bell Road, Chico. 0 Comment
  HSC38059  Galium parisiense Thomas W. Nelson, Jane P. Nelson 1976-5-10 2466 Butte Beside SR 191 just N of its junction with SR 70 Comment
  UCD121849  Galium parisiense L. Ahart 1982-5-29 3446 Butte Peter Ahart Ranch, ca. 2.3 mi ne of Honcut. 50 Comment
  CHSC32843  Galium tricornutum S. Scott 1981-4-24 Butte 1 km E of Manzanita Ave and Centenial Ave jct, 2.5 km E of Chico. 97 Comment
  UC426971  Galium trifidum E. B. Copeland 1930-7-16 476 Butte Jonesville 1500 Comment
  UC1609077  Galium trifidum var. pusillum Lowell Ahart 1993-6-26 7017 Butte about 1/4 mi w Lost Creek Reservoir (small meadow n of dirt road) 1036 Comment
  CAS-BOT-BC303381  Gamochaeta ustulata Lowell Ahart 1980-5-25 2326 Butte Along Swedes Flat Rd, near Bangor 320 Comment
  CHSC96555  Garrya fremontii L. P. Janeway; Dan Lubin 2006-5-3 8573 Butte Northern High Sierra Nevada. South side of the ridge between Sawmill Peak and Jordan Hill Road; 600 m east-southeast of the Sawmill Peak lookout. 954 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
  CHSC108757  Gaura L. P. Janeway; B. Castro 2011-6-5 10361 Butte Sacramento Valley. No sections here (Arroyo Chico) Chico; northeast side of Hwy 99 just southeast of Cohasset Road overcrossing. Generally planted areas bordering the roadway. 62 Comment
  CHSC113439  Gayophytum diffusum subsp. parviflorum Lowell Ahart 2014-7-7 19561 Butte About 20 yards east of the Skyway, about one-mile north of Stirling City. 1142 Comment
  UCD103683  Gayophytum diffusum subsp. parviflorum R. A. Schlising; Banchero, Fuller, Tarp 1981-7-3 4129 Butte E of Philbrook Reservoir. 1828 Comment
  SD7373  Gayophytum heterozygum Daniel Cleveland 1882-7-14 Butte Sutton House Comment
  JEPS118635  Genista monspessulana L. P. Janeway 2011-5-2 10249 Butte Sacramento Valley. South side Feather River just east of Bedrock Park, Oroville; about 10-15 m back from the edge of the water and about 1 m higher. Comment
  CHSC33961  Gentianopsis simplex M. S. Taylor; L. Ahart 1981-8-16 4199 Butte Jones Meadow, ca. 3 mi s of Philbrook Reservoir, ca. 6 mi ne of Stirling City. 1828 Comment
  UC600682  Gentianopsis simplex H. F. Copeland 1924-8-12 Butte Jonesville Comment
  RSA0028177  Geranium carolinianum L. Ahart 2012-4-30 17945 Butte South side of the path near the sign, southwest of the intersection of Vallombrosa Avenue and Manzanita Avenue, Lower Bidwell Park. 81 Comment
  CDA5617  Geranium dissectum L. Ahart 2005-4-14 11704 Butte At the base of the railroad roadbed, east side of the railroad tracks, south of the railroad bridge, north of Spruce Street, Gridley. Comment
  JEPS119709  Geranium dissectum Lowell Ahart 2012-5-2 17968 Butte About 100 yards west of the Easter Cross Parking Lot, Upper Bidwell Park, about 1 mile east of Chico. Comment
  HSC23409  Gilia tricolor Marsha Caunt 1971-3-20 1 Butte .5 mi. NE of Diversion Dam on N cliff overlooking Big Chico Creek, Salmon Hole 76 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
  UC880189  Gilia tricolor subsp. tricolor A. A. Heller 1914-3-26 11228 Butte canyon of Chico Creek Comment
  CHSC39534  Githopsis specularioides Lowell Ahart 1983-6-12 4041 Butte Found growing along the road near a small meadow, about 1 mile south of Crystal Hill, near Oregon Gulch, near Lake Oroville, about 7 miles south-west of Feather Falls. 425 Comment
  UC890660  Githopsis specularioides A. A. Heller 1915-4-20 11853 Butte 3 mi from Chico (Chico-Centerville road) Comment
  SEINET10464572  Githopsis specularioides A. Arthur Heller 1915-4-20 Heller 11853 Butte Chico-Centerville road 3 miles from Chico at the lower limit of the digger pine belt Comment
  SEINET10906067  Githopsis specularioides Deaton 1976-4-23 DEATON 36 Butte 10 ft. down south side of Feather Falls trail, about 1 7/8 miles north of Falls parking lot 853 Comment
  CHSC83085  Glinus lotoides Lowell Ahart 2002-10-17 9982 Butte On the gentle hills below the high water line of Lake Oroville, about 1 1/2 miles south of Highway 162 (Oroville Quincy Highway), about 3 miles (air) northeast of Oroville Dam. 227 Comment
  JEPS113579  Glinus lotoides Lowell Ahart 2007-8-19 14484 Butte About 2 1/4 miles (air) southeast of Honcut, about 13 miles (air) southeast of Oroville 49 Comment
  CDA13341  Glyceria elata G. F. Hrusa, T. D. Wilfred 1996-7-9 13189 Butte Sierra Nevada; Wet, deeply shaded springline above spring on 23N15, approx. 100 m to S of Hwy 162 across from entrance to Rogers Cow Camp. Individuals to 2 m. tall. Coniferous forest, w/ generally dry understory. Comment
  CHSC51873  Glycyrrhiza lepidota L. P. Janeway 1988-6-5 2729 Butte Cyn of Big Chico Cr ca 1 mi NE of the end of Upper Park Rd. 213 Comment
  SEINET10473435  Gnaphalium Mary Susan Taylor 1977-11-12 Taylor 1536 Butte Devil's Kitchen area, on S side of Upper Bidwell Park Road, Upper Bidwell Park, Chico. Foothill Woodland. Comment
  CHSC38354  Gnaphalium palustre Vernon Oswald 1983-6-3 620 Butte Upper Bidwell Park, Chico, at Horseshoe Lake. 100 Comment
  SEINET10474675  Gnaphalium palustre Lowell Ahart 1985-11-7 Ahart 5239 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
  SEINET10475273  Gnaphalium thermale Mary Susan Taylor 1977-10-10 Taylor 1511 Butte In drying irrigation ditch on S side of Crauch Rd, ca. 300 ft W of its junction with Lone Pine Ave, ca. 4 mi S of Chico. 30 Comment
  CHSC25448  Goodyera oblongifolia Hayes; Warner 1977-9-11 75 Butte Ca. 100 m n of road between Jonesville and Butte Meadows, exactly 8.4 mi from the junction of the Butte Meadows road with Hwy 32. 1219 Comment
  SEINET10470040  Goodyera oblongifolia Mary Susan Taylor 1978-9-9 Taylor 1908 Butte Along Bull Run Road, ca. 10-11 mi S of Butte Meadows in northern portion of the county; Yellow Pine Forest. 1463 Comment
  RSA256646  Gratiola ebracteata R. A. Vanbianchi 1974-4-20 208 Butte Paradise Skyway, 1 mile east of U.S. Highway 99. Comment
  CHSC23381  Grevillea banksii 1966-3-31 Butte Comment
  SEINET10473780  Grindelia camporum Mary Susan Taylor 1975-6-30 Taylor 811 Butte E side of Cohasset Hwy, ca. 2 mi N of Chico; Valley Grassland. 244 Comment
  CHSC44189  Grindelia camporum var. camporum Vernon Oswald 1988-6-22 3511 Butte Harter's Cherokee Ranch located on the w side of Hwy 99 between Hwy 149 and Dry Creek. Rice paddy in the southeast part of the ranch. 53 Comment
  CAS-BOT-BC305284  Grindelia hirsutula A. A. Heller 1913-6-4 10780 Butte Table Mountain Olive Ranch north of Oroville Comment
  SEINET10475566  Grindelia hirsutula var. davyi Heidi H. Schmidt 1993-6-15 Schmidt 864 Butte Plumas National Forest on state road 23N06 1.5 miles N of the junction with highway 70. Mixed hardwood forest. 880 Comment
  POM220946  Hackelia californica D. D. Keck, J. Clausen 1935-6-25 3772 Butte Spring Valley Reservoir 5 miles N.E. of Chaparral. 1707 Comment
  CHSC37412  Hackelia micrantha R. A. Schlising 1982-7-21 4331 Butte Meadow n of Philbrook Res. in n part of county. 1706 Comment
  UC897381  Helenium bigelovii A. A. Heller 1938-7-20 15284 Butte 7 mi e Chaparral (upper end of lake); Snag Lake 1524 Comment
  JEPS120538  Helenium puberulum B. Castro, Margie Graham 2006-9-7 1609 Butte Sacramento Valley. Ca 1.75 mi W of Hwy 99, 1.3 mi ENE of Richvale and ca 0.4 mi N of Richvale Hwy in Cherokee Canal. On W side of canal ~ 20 ft in from toe of W levee. Comment
  SEINET10508799  Heleochloa schoenoides Mary Susan Taylor 1978-9-8 Taylor 1882 Butte Along flood control slough, ca. 4 mi N of Chico, along Hwy 99. 61 Comment
  CAS-BOT-BC314757  Helianthella californica var. nevadensis E. B. Copeland 1931-6-22 695 Butte Jonesville 2150 Comment
  RSA771482  Helianthus bolanderi George K. Helmkamp, E. A. Helmkamp 2009-9-5 15581 Butte Lower Honcut Road, 1.2 miles east of its junction with CA-70, 1.85 mi. WSW (258 deg ) of Honcut, 7.2 mi. SE (114 deg ) of Gridley 35 Comment
  UCD146601  Helianthus bolanderi G. F. Hrusa; T. D. Wilfred 1997-7-3 13984 Butte above Little Butte Creek, north of Magalia. Immediately east of Holmwood Drive. 725 Comment
  CDA5437  Heliotropium europaeum D. G. Kelch 2006-8-2 6 .34 Butte Along Butte Creek, north of Durham-Dayton Hwy. Comment
  JEPS124123  Heliotropium europaeum Lowell Ahart 2015-10-9 20542 Butte About 3/4 mile northwest of the intersection of Bull Hill Road, Skyway, and Humbug Road, about 4 miles (air) north of Inskip. Comment
  CDA42909  Helminthotheca echioides L. Ahart 2012-6-21 18221 Butte About 15 yards east of the Freeway, South of Big Chico Creek, Lower Bidwell Park, Chico. Comment
  JEPS119737  Helminthotheca echioides Lowell Ahart 2012-6-21 18221 Butte About 15 yards east of the Freeway, south of Big Chico Creek, Lower Bidwell Park, Chico. Comment
  JEPS124122  Hemizonella minima Lowell Ahart 2015-6-16 20227 Butte About 4 miles (by road) northwest of Fall River Bridge, about 5 1/2 miles (air) northwest of Camp 18, about 9 miles (air) northeast of Feather Falls. Comment
  CHSC51855  Hemizonia congesta subsp. luzulifolia L. P. Janeway 1986-10-19 1943 Butte Between hwy 99 and Thermalito Forebay Picnic Ground. 67 Comment
  CHSC74081  Herniaria hirsuta subsp. hirsuta B. Castro 1996-8-20 715 Butte Black Jack Fire. Ca 5 air mi N of Brush Creek, ca 0.25 mi S of Rogers Cow Camp via 'J' spur rd S of USFS Rd 23N15. 1222 Comment
  CHSC90475  Hesperevax acaulis var. ambusticola Lowell Ahart; Paul Maslin, John Dittes 2005-3-17 11676 Butte Big Chico Creek Ecological Reserve. Ridge top, in the center of a very poor dirt road, about 1 mile southwest of the Indian Cave, about 1 3/4 miles west of Big Chico Creek, about 4 miles (air) northeast of Chico. 484 Comment
  CHSC31609  Hesperevax acaulis var. robustior L. Ahart 1979-5-8 1863 Butte Ca. 1/4 mi n of the Peter Ahart Ranch near the w bank of North Honcut Creek. 3 mi ne of Honcut. 70 Comment
  CHSC36119  Hesperevax caulescens Mary Banchero 1979-4-18 17 Butte Northernmost Butte County, ca. 0.5 mi n of Pine Creek, nw of Singer Creek; 7 mi nw of Nord on Cana-Pine Creek Road. 56 Comment
  CHSC44469  Hesperevax caulescens Lowell Ahart 1988-4-29 5964 Butte Near the ditch which was part of the Honcut Flume, on the Joie Osgood Ranch, about 2 miles north and 2 1/2 miles east of Honcut, about 12 miles south-east of Oroville. 76 Comment
  CHSC27304  Hesperolinon californicum T. B. Devine 1977-5-22 401 Butte Wurlitzer Farm, Vina Prairie. In grazed field next to Haile Rd ca 1 mi sw of Hwy 99. 57 Comment
  CHSC78153  Hesperolinon californicum Lowell Ahart 2000-5-17 8368 Butte Near the southeast margin of the Thermalito Afterbay, west of the poor dirt road, about 1/8 mile north of the Richvale Highway, about 3/4 mile east of Highway 99, about 7 1/4 miles (air) west of Oroville. 42 Comment
  JEPS32279  Hesperolinon californicum Mrs. R. M. Austin April, 1896 194 Butte plains near Chico 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
  SEINET10460745  Heterocodon rariflorum Mary Susan Taylor 1980-4-27 Taylor 2548 Butte T23N R3E ne sec 27. Paradise quad. Ca. 1 mi S of Nimshew, ca. 1/4 mi E of Nimshew Rd; Yellow Pine Forest. With J.D. Jokerst. 610 Comment
  SEINET10460747  Heterocodon rariflorum Mary Susan Taylor 1980-7-20 Taylor 3191 Butte Big Bald Rock, ca. 3 mi E of Lake Mad rone, NE of Oroville. With L. Ahart, R. Schlising & J. Jokerst. 998 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
  CHSC38643  Heteromeles arbutifolia Vernon Oswald 1983-6-9 656 Butte Upper Bidwell Park, Chico, near Parking Area R (2.3 mi e of the power lines). 228 Comment
  CHSC34709  Heterotheca oregona var. compacta M. S. Taylor 1980-9-26 3340 Butte In Lindo Channel, jct of Mangrove and Cohasset, in Chico. 45 Comment
  CHSC83119  Heterotheca oregona var. rudis Lowell Ahart 2002-9-27 9940 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
  CHSC23417  Hibiscus lasiocarpos var. occidentalis K. Stern 1970-8-1 Butte S. end of Eddy Lake. Rancho Llano Seco. Comment
  CHSC11827  Hieracium albiflorum E. B. Copeland 1930-7-16 495 Butte Jonesville. 1600 Comment
  CAS-BOT-BC55328  Hirschfeldia incana John Thomas Howell 1962-6-16 37570 Butte Sierra Nevada. Magalia. 731 Comment
  CAS-BOT-BC55331  Hirschfeldia incana Lowell Ahart 1974-5-18 s.n. Butte Near Honcut. 175 Comment
  CHSC25485  Hoita orbicularis L. Ahart 1977-6-17 1428 Butte Growing along North Honcut Creek. Peter Ahart Ranch, Honcut. 50 Comment
  CDA42902  Holcus lanatus L. Ahart 2012-6-14 18193 Butte Dry high bank on the north side of Big Chico Creek, about 30 yards east of Mangrove Avenue, Annie's Glen, Lower Bidwell Park, Chico. Uncommon. Riparian Woodland. Comment
  CHSC27242  Holcus lanatus P. Moyer 1972-4-9 170 Butte Chico State campus. Railroad tracks service road. 60 Comment
  CHSC41281  Holcus lanatus S. C. Morey 1983-7-21 499 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  SEINET10591428  Holcus lanatus Lowell Ahart 1987-6-9 Ahart 5728 Butte On dry sand along the edge of the North Fork of the Feather River, near the Poe Power House about 2 miles southeast of Jarbo Gap. 274 Comment
  CAS-BOT-BC311881  Holozonia filipes Lowell Ahart 1981-7-7 2914 Butte Sutter Buttes Area. About 1 mile south of the Oroville Forbestown Road on the Hurleton Swedes Flat Road 600 Comment
  CAS-BOT-BC285092  Hordeum marinum subsp. gussoneanum John Thomas Howell 1962-6-15 37485 Butte Magalia 731 Comment
  UCD85770  Hordeum marinum subsp. gussoneanum L. Ahart 1982-4-29 3397 Butte Graylodge Wildlife Refuge. Ca. 3/4 miles W of check-in station. Ca. 12 miles SW of Gridley. 35 Comment
  CAS-BOT-BC143978  Horkelia fusca var. tenella H. F. Copeland 1920-8-29 158 Butte Jonesville Meadow 1219 Comment
  CHSC30709  Horkelia tridentata M. S. Taylor 1980-5-27 2711 Butte On edge of Little Bald Rock near creek, ca. 3 mi s of Brush Creek. 1016 Comment
  CHSC48854  Horkelia tridentata Vernon Oswald 1983-6-22 743 Butte Near Humboldt Rd. (to Butte Meadows) 2.1 mi n-e of Calif. Hwy 32. 1310 Comment
  CAS-BOT-BC143357  Horkelia tridentata Lowell Ahart 1980-5-25 2350 Butte Along Ponderosa Way 500 Comment
  UCD113567  Horkelia tridentata var. flavescens L. P. Janeway 1987-6-26 2297 Butte At Rag Dump. 1173 Comment
  CAS-BOT-BC536251  Horkelia tridentata var. tridentata H. F. Copeland 1920-7-11 53 Butte By Butte Creek 1828 Comment
  CHSC42943  Hosackia stipularis var. ottleyi Lowell Ahart 1987-7-8 5804 Butte Near Big Bar Mountain Road, about 1 mile south-west of Coyote Gap, about 5 miles east of Pulga. 1280 Comment
  SEINET10720066  Hypericum anagalloides A. Arthur Heller 1914-8-6 Heller 11637 Butte Chico Meadows. 1219 Comment
  LA212279  Hypericum concinnum James R. Shevock; 1972-5-19 s.n. Butte Near Lake Oroville, along Highway #70. 91 Comment
  JEPS110536  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
  UC426919  Hypericum formosum var. scouleri E. B. Copeland 1930-7-18 426 Butte Jonesville 1550 Comment
  UC1563288  Hypericum perforatum unknown 1990-10-3 6616 Butte ca. 1/4 mi. n.e. of Canyon Creek Bridge across Lake Oroville (E. Fork Canyon Creek); E. Fork Canyon Creek 259 Comment
  CHSC6687  Hypochaeris glabra Marilyn Lee 1968-4-19 125 Butte Along Cherokee Road ca 2 miles S. of Cherokee, 105 yards E. of cemetary. Table Mt. Comment
  CAS-BOT-BC312927  Hypochaeris glabra M. S. Taylor; L. Hanson; B. Smith 1981-5-29 3809 Butte Plumas NF/Oroville Rd. Chino Ridge 853 Comment
  CHSC45686  Hypochaeris radicata Vernon Oswald 1985-4-29 1728 Butte Bald Rock Rd. 0.3 mi e of Oroville-Quincy Hwy. 640 Comment
  UC398944  Ipomopsis aggregata E. B. Copeland 1929-7-24 394 Butte Jonesville 1500 Comment
  RSA565165  Iris hartwegii R. J. Shaw 1993-5-23 5092 Butte ca. 15 miles east of Chico at junction of Highway 32 and Sugar Pine Place 1000 Comment
  CHSC3250  Iris macrosiphon Virginia Hagaman 1966-3-28 82 Butte Covered Bridge in ravine at bottom of canyon. Comment
  CHSC49824  Isoetes nuttallii Vernon Oswald; Lowell Ahart 1990-4-9 4158 Butte Feather Falls on Fall River near its junction with the Middle Fork of Lake Oroville. 548 Comment
  CHSC54295  Isoetes nuttallii Vernon H. Oswald; Lowell Ahart 1991-6-5 4641 Butte Dirt road to Minnie-Ha-Ha Mine located on Big Chico Creek on the west side of Hwy 32, ca. 1.5 miles (air) northwest of Platte Mtn Lookout, between Forest Ranch and Lomo. 853 Comment
  JEPS117727  Isoetes nuttallii Lowell Ahart 2010-5-14 16655 Butte In the tracks of an old road, Disc Golf Area, about 100 yards west of the entrance to the Disc Golf Area, about 120 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 372 Comment
  JEPS127194  Isoetes nuttallii Lowell Ahart 2016-4-15 20743 Butte About 1/2 mile southwest of Dutch Ravine, about 8 miles (air) southeast of Oroville. Comment
  CHSC45120  Isolepis setacea V. Oswald; L. Ahart 1988-6-17 3405 Butte Pinkard Creek ca. 1.5 mi n of Lost Creek Reservoir. Along the edge of the creek where it flows through a large meadow developed on impounded tailings from placer and hydraulic mining upstream. 1066 Comment
  JEPS98569  Isolepis setacea Lowell Ahart 2000-6-6 8454 Butte 5 mi (air) E of Oroville Dam (bottom of old gold mining pit, E of where dirt road crosses Oregon Gulch creek, 1/4 mi NE of cemetary, 1 1/2 mi S of Crystal Hill) 304 Comment
  CHSC57795  Jensia rammii Vernon H. Oswald; John Dittes 1992-4-28 4927 Butte Ca. 0.5 mi SE of the southern end of Libby Rd. in SE Paradise. On the east side of and intermittent streamlet draining Dry Creek. 457 Comment
  CAS-BOT-BC340246  Jensia rammii Lowell Ahart 1983-6-26 4157 Butte Along Ponderosa Way, about 2 1/2 miles east of where Ponderosa Way crosses the East Fork of Canyon Creek, about 15 1/2 miles north-east of Oroville 600 Comment
  CHSC3283  Juglans californica var. hindsii M. L. Hillier 1966-4-11 Butte Bidwell Park Nature Trail near Cedar Grove. Comment
  RSA134790  Juglans hindsii Percy C. Everett, E. K. Balls 1959-10-20 23906 Butte Henshaw Ave., Chico. 59 Comment
  CHSC27163  Juglans regia M. MacArthur 1968-6-13 307 Butte Parkinbg lot NE of Building U, Chico State College campus. 60 Comment
  SEINET10472534  Juncus Mary Susan Taylor 1980-5-27 Taylor 2688 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
  CHSC112339  Juncus acuminatus Lowell Ahart 2013-7-9 18829 Butte South side of North Honcut Creek, west of the steel power line, about 2 mile (air) northeast of Honcut, about 13 miles (air) southeast of Oroville. 37 Comment
  CHSC49696  Juncus acuminatus Vernon Oswald 1985-5-20 1776 Butte Oroville Wildlife Area near the outlet of Thermalito Afterbay. Comment
  CHSC97299  Juncus acuminatus Lowell Ahart 2007-8-19 14488 Butte About 2 1/4 miles (air) southeast of Honcut, about 13 miles (air) southeast of Oroville. 49 Comment
  CHSC28657  Juncus articulatus J. D. Jokerst 1979-10-12 375 Butte 1.0 mi. N. E. of end of Upper Park Rd., 50 met. E. of Big Chico Cr. 213 Comment
  CHSC37255  Juncus articulatus L. Ahart 1982-8-22 3747 Butte Along edges of North Honcut Creek, Peter Ahart Ranch, ca. 1 mi n and 3 mi e of Honcut. 50 Comment
  CHSC49605  Juncus balticus Vernon Oswald 1984-6-11 1284 Butte Near Humboldt Rd. at Butte Creek, 0.2 mi w of Cherry Hill Campground. 1414 Comment
  CHSC39661  Juncus bufonius var. bufonius Lowell Ahart 1983-6-21 4096 Butte Along the edge of Bloomer Hill Road, about 3 miles north-west of the Oroville Quincy Highway, about 16 miles north-east of Oroville. Section 30. 700 Comment
  CHSC82417  Juncus bufonius var. bufonius Lowell Ahart 2002-5-7 9633 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
  CHSC62515  Juncus bufonius var. congestus B. Castro; L. P. Janeway 1992-5-10 455 a Butte Banks of winding drainage channels in flats just SE of Neal Road. 54 Comment
  CHSC97238  Juncus bufonius var. congestus Lowell Ahart 2007-6-3 13971 Butte West of the bridge across Concow Creek, west side of Jordan Hill Road, about 1 1/2 miles (air) southwest of Concow Reservoir. 415 Comment
  UCSB63749  Juncus bufonius var. congestus Ahart, Lowell 1998-5-2 Butte T17N, R2E, southwest 1/4 Section 7; graded north side of Evans Reimer Road; about 1/4 mile east of Pennington Road; about 5 miles (air) southwest of Gridley 21 Comment
  UC1609050  Juncus bufonius var. occidentalis Lowell Ahart 1993-8-29 7119 Butte about 6 1/2 mi ne of Stirling City (about 2 1/2 mi ne of Bald Mountain) 1584 Comment
  CHSC112909  Juncus capitatus B. Castro; Robin Carter 2011-4-29 1871 Butte Sacramento Valley. Between Hwy 99 and the Thermalito Afterbay levee, 0.37 mi S of jcn of Hwys 99 and 162W, ca 0.6 mi N of Hamilton Rd. 36 Comment
  UC1609269  Juncus covillei var. covillei Lowell Ahart 1993-7-23 7109 Butte about 6 air mi ne of Feather Falls (about 1/8 mi s of the campgrounds on the large gravel bar along Fall River); s of Fall River 1036 Comment
  SEINET10971397  Juncus cyperoides Lowell Ahart, Peter Ahart 1984-6-10 Ahart 4692 Butte About 0.5 mi SW of the jct of Black Bart Rd and Forbestown Rd, ca. 14 mi E of Oroville; Yellow Pine Forest; 650 m. 650 Comment
  JEPS98347  Juncus dubius Lowell Ahart 2000-6-29 8537 Butte 5 air miles E of Magalia (W side of Flea Meadow, 1/2 mi W of Flea Mountain, 3 1/2 air miles N of Concow Reservoir) 1036 Comment
  CHSC28546  Juncus effusus subsp. pacificus M. S. Taylor 1978-7-18 1721 Butte On n side of Butte Creek, ca. 1/8 mi w of Road Island jct, at jct of Butte Creek and Old Humboldt Rd, ca. 1 mi w of Cherry Hill Campground, sw of Jonesville. 1524 Comment
  CHSC96957  Juncus effusus subsp. pacificus Lowell Ahart 2007-7-15 14304 Butte Along the east side of Encina Grande Road (Bloomer Hill Road), about 50 yards north of the home, about 1/4 miles (air) southwest of Bloomer Hill. 808 Comment
  CHSC96972  Juncus effusus subsp. pacificus Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-10 14280 Butte Northwest part of a large open area, about 250 yards east of Bean Creek Road, northeast of Little Bald Road, about 16 miles (air) northeast of Oroville. 1024 Comment
  JEPS113843  Juncus effusus subsp. pacificus Lowell Ahart 2007-7-11 14288 Butte About 100 yards west of the high gravel road (at turn, before washout), about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville 35 Comment
  RSA726658  Juncus effusus subsp. pacificus L. Ahart, L. P. Janeway, Linnea Hanson 2007-7-13 14301 Butte About 30 yards east of a poor dirt road, about 1 1/2 milea (air) northeast of Clipper Mills. 1046 Comment
  SEINET10905121  Juncus effusus var. pacificus Mary Susan Taylor 1978-7-21 Taylor 1811 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
  CHSC44647  Juncus ensifolius J. D. Jokerst; R. A. Schlising 1982-10-7 1660 Butte Along the margins of the West Branch of the Feather River, at Coon Hollow where Forest Service Road 27N74 crosses the river. 1615 Comment
  JEPS110169  Juncus ensifolius Lowell Ahart 2006-9-13 13317 Butte South edge of the North Fork of the Feather River, about 100 yards west of Mill Creek, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville 431 Comment
  SEINET10839421  Juncus ensifolius Mary Susan Taylor 1978-4-14 Taylor 1565 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
  UCD141521  Juncus ensifolius H. F. Copeland 1930-7-25 s.n. Butte Jonesville. 1524 Comment
  CHSC44445  Juncus howellii Lowell Ahart 1988-6-29 6095 Butte Along a small seep south of Bean Creek Road, about 1/2 mile southeast of Little Bald Rock. 975 Comment
  CHSC95186  Juncus howellii R. D. Fischer; Jenny Marr 2004-9-5 787 Butte Sierra Nevada Mountains, the north-east corner of Butte County and ca. 6 miles north of Butte Meadows and 1 mile north of Humboldt Road along Scotts John Road/creek. 1524 Comment
  RSA726662  Juncus howellii L. Ahart 2007-6-12 14079 Butte North edge of Bald Rock Road, about 100 yards northeast of the intersection of Bald Rock Road and Rockefeller Road, about 13 miles (air) northeast of Oroville. 982 Comment
  CDA39192  Juncus howellii T. C. Fuller 1962-7-12 9200 Butte Road to Jonesville, 2 miles east of Butte Meadows. 0 Comment
  SEINET10472446  Juncus howellii Lowell Ahart 1983-8-16 Ahart 4294 Butte T26N R4E nw section 28. Along a small stream that flows into Butte Creek, ca. 1 mi east of Butte Meadows. Yellow Pine Forest; 1450 m. 1450 Comment
  JEPS94188  Juncus leiospermus Lowell Ahart 1998-4-29 7953 Butte ca. 7 mi. n. Oroville (n.e. of the large parking area on North Table Mt., e. side of Cherokee Rd.); North Table Mt. 426 Comment
  SEINET10472452  Juncus leiospermus Lowell Ahart 1984-4-6 Ahart 4543 Butte T22N R4E sec 31. Ca. 0.5 mi N of Kunkle Reservoir, ca. 2 miles S of Paradise, east side of Pentz-Magalia Hwy. Foothill Woodland; 600 m. 600 Comment
  CAS-BOT-BC110145  Juncus leiospermus var. ahartii Lowell Ahart 1974-6-5 s.n. Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC47565  Juncus leiospermus var. ahartii Lowell Ahart 1978-4-18 1648 Butte On the bottom of vernal pools, Peter Ahart Ranch, about 2 1/4 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CAS-BOT-BC110137  Juncus leiospermus var. leiospermus Lowell Ahart 1979-5-29 1895 Butte Sierra Nevada. Near Krinkle Reservoir, ca. 2.5 miles southeast of Paradise. 500 Comment
  JEPS104273  Juncus leiospermus var. leiospermus Lowell Ahart 2003-4-8 10042 Butte On the high water line of vernal pools, pasture field, ca 130 yd south 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. 302 Comment
  JEPS110151  Juncus leiospermus var. leiospermus Lowell Ahart 2006-5-8 12604 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 339 Comment
  CHSC11960  Juncus nevadensis E. B. Copeland 1929-7-29 348 Butte Near Butte Creek House, above Jonesville. 1750 Comment
  CHSC32374  Juncus occidentalis J. D. Jokerst; R. A. Schlising, M. S. Taylor 1980-6-14 832 Butte Big Bald Rock, N of Oroville and E of Berry Creek. 914 Comment
  CHSC78338  Juncus occidentalis Lowell Ahart 2000-6-29 8535 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
  JEPS98471  Juncus occidentalis Lowell Ahart 2000-6-29 8535 Butte 5 air miles E of Magalia (W side of Concow Road at Flea Meadow, 1/2 mi W of Flea Mountain, 3 1/2 air miles N of Concow Reservoir) 1036 Comment
  CHSC110408  Juncus orthophyllus Lowell Ahart 2012-9-5 18441 Butte On the east sided of the South Fork of the Feather River, about 300 yards northeast of the County Road where it crosses the South Fork of the Feather River, about 3/4 mile (air) southwest of Pilot Peak, about 8 1/2 miles (air) northeast of La Porte. 1882 Comment
  CHSC78341  Juncus orthophyllus Lowell Ahart 2000-6-17 8484 Butte In seeps, about 1/4 mile northeast of Kunkle Reservoir, east of Pentz Magalia Road, about 2 miles south of Paradise. 548 Comment
  CHSC41353  Juncus oxymeris R. A. Schlising 1983-5-15 4408 Butte Richvale Vernal Pools; 0.25 mile S of junction Hwy 162 to Oroville with Highway 99; along the latter and across from Thermalito Afterbay. In pools in SE portion of area. Comment
  UC600813  Juncus parryi H. F. Copeland 1930-7-12 Butte above Butte Creek House; Jonesville Comment
  CHSC99817  Juncus tenuis Lowell Ahart 2008-7-23 15143 Butte On the north side of the South Fork of the Feather River, about 10 yards west of where Sucker Creek enters the South Fork of the Feather River, below the high water line of Lake Oroville, about 1/4 mile west of the Ponderosa Dam. 258 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
  RSA726660  Juncus tenuis L. Ahart 2007-6-12 14081 Butte Rockefeller Road, at the intersection of Bald Rock Road and Rockefeller Road, about 13 miles (air) northeast of Oroville. 1012 Comment
  CHSC78344  Juncus triformis Lowell Ahart 2000-6-27 8529 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
  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
  UC1561852  Juncus uncialis Barbara Ertter with Lowell Ahart 1986-4-13 5892 Butte ca 2 air mi nne Honcut (Peter Ahart Ranch, between Oroville and Marysville) 30 Comment
  CAS-BOT-BC80921  Juniperus californica Arthur Menzies 1969-8-1 s.n. Butte Near Gillem's Bluff, Little Butte Creek, Nelson West Rd & Chico-Butte City Hwy. Comment
  CHSC28868  Juniperus californica M. S. Taylor 1980-3-1 2334 Butte Ca. 100 ft n of Neal Rd, ca. 2 1/2 mi e of its jct with Hwy 99, ca. 7 mi s of Chico. 137 Comment
  UC1562418  Keckiella breviflora var. glabrisepala Lowell Ahart 1990-5-21 6477 Butte about 4.5 mi sw Oroville (about 0.25 mi s of the Feather River, about 0.4 mi w of Pacific Heights Road) 30 Comment
  SEINET10968831  Kelloggia galioides Mary Susan Taylor 1977-8-17 Taylor 1484 Butte Scattered in Red Fir Forest, at Humboldt Summit at Butte-Tehama County line, ca. 50-100 ft W of Old Humboldt Rd on Butte County side; with Arctostaphylos neva densis, Hackelia californica. 2134 Comment
  CHSC102712  Kickxia elatine Lowell Ahart 2009-7-3 15991 Butte 10 yards north of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove parking area, Lower Bidwell park, Chico. 67 Comment
  CHSC113115  Kickxia elatine Lowell Ahart 2013-11-18 19286 Butte Below the high water line of Lake Oroville, about 150 yards northeast of the boat ramp at the end of Stringtown Road, about 50 yards north of the road, about 2 1/2 miles (air) northeast of Hurleton. 261 Comment
  JEPS115062  Kickxia elatine Lowell Ahart 2007-10-31 14519 Butte West of the official parking area, strand of Lake Oroville, Foreman Creek Area, about 1 mile south of Highway 162 (Oroville Quincy Road), about 7 miles (air) northeast of Oroville 224 Comment
  SEINET13711424  Kickxia elatine Lowell William Ahart, Lowell William Ahart 1999-1 8132 Butte 12 Air Mi SW of Chich, 2 Mi SE Ordbend, Sacramento River Comment
  SEINET3450721  Kickxia elatine Unknown 2003-6-25 10316 Butte Oroville, Oroville, about 12 miles southeast, Peter Ahart Ranch, about 1.5 miles north and 1.67 miles east of Honcut 30 Comment
Read comments
Oct 9 2018
  CHSC4140  Kumlienia hystricula R. Carter 1966-4-28 379 Butte Found in Feather R. Canyon 11 mi. NW of Butte-Plumas Co. line along N side of Hwy 70. On cliff above road just S of water fountain. 701 Comment
  CHSC43864  Kumlienia hystricula Vernon Oswald 1988-3-20 3260 Butte Centerville flume upstream from Humbug Rd. at the s end of the tunnel. 353 Comment
  CAS-BOT-BC340330  Kyhosia bolanderi E. B. Copeland 1930-8-4 s.n. Butte Jonesville 1500 Comment
  CAS-BOT-BC274277  Lachnagrostis filiformis Lowell Ahart 1977-6-2 1520 Butte Peter Ahart Ranch, Honcut 50 Comment
  CHSC365  Lactuca serriola D. Bower 1953-8-13 Butte 3A Llano Seco. Rice field. 30 Comment
  CAS-BOT-BC341315  Lagophylla glandulosa David D. Keck 1932-7-2 1612 Butte 6 miles NE. of Oroville. (On road to Quincy) 250 Comment
  SEINET10474763  Lagophylla glandulosa Mary Susan Taylor 1980-8-15 Taylor 3251 Butte T20N R4E sw sec 32, Oroville quad. Ca. 0.5 mi N of Oroville, on W side of Cherokee Rd, on the SE slope of South Table Mt. With E. Pierce. 244 Comment
  CHSC48174  Lagophylla ramosissima subsp. ramosissima Vernon Oswald 1984-5-21 1191 Butte Humbug Rd. (Centerville Rd.), 4.1 mi s-w of Nimshew Ridge Rd. 396 Comment
  CHSC35667  Lamarckia aurea R. E. Preston 1982-4-22 257 Butte Slope at lakeside; Lake Oroville, ca. 0.9 mi ne of Lime Saddle Powerhouse, ca. 4.5 mi se of Paradise. 280 Comment
  CHSC31888  Lamium amplexicaule L. Ahart 1973-4-15 201 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CAS-BOT-BC337912  Lasthenia californica Lowell Ahart 1970-4-20 s.n. Butte Peter Ahart Ranch, Honcut 150 Comment
  CHSC56754  Lasthenia fremontii J. D. Jokerst 1980-3-26 Butte East side of Chico; 100 m northeast of junction of Bruce Road and Skyway. Comment
  SD111946  Lasthenia fremontii B. Ertter, Jeff Strachan 1980-5-5 3247 Butte Peter Ahart Ranch, 1.5 miles northeast of Honcut between Oroville and Marysville. 29 Comment
  UC196261  Lasthenia fremontii A. A. Heller 1914-4-3 11260 Butte on the Chico-Oroville road 8 mi from Oroville Comment
  SEINET9327375  Lasthenia fremontii Unknown 1988-4-20 303 Butte Near Chico, along hwy 99 in pasture, 2.5 km S of Meridien Rd. on E side of the rd Comment
  CAS-BOT-BC352920  Lasthenia glaberrima Lowell Ahart 1979-5-11 s.n. Butte Honcut 35 Comment
  CHSC117437  Lathyrus angulatus Lowell Ahart 2016-5-30 20896 Butte On the south side of a deep wash, west of Little Pump, Peter Ahart Ranch, about 2 1/2 miles north and 1/4 mile east ofd Honcut, about 12 miles (air) south of Oroville. 30 Comment
  CHSC45907  Lathyrus angulatus Lowell Ahart 1978-5-15 1727 Butte Peter Ahart Ranch, about 2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC78248  Lathyrus hirsutus Lowell Ahart 2000-6-17 8483 Butte Near seeps, about 1/4 mile northeast of Kunkle Reservoir, east of Pentz Magalia Road, about 2 miles south of Paradise. 548 Comment
  CAS-BOT-BC213343  Lathyrus jepsonii subsp. californicus Helen M. Edwards 1917-6-1 s.n. Butte De Sabla Comment
  UCD106258  Lathyrus jepsonii var. californicus A. A. Heller 1914-5-1 11345 Butte Chico-Hamilton road 6 miles from Chico. Comment
  CHSC65553  Lathyrus nevadensis var. nevadensis L. P. Janeway 1995-6-13 4783 Butte About 0.75 mi east of the western end of Jackson Ranch Ridge; along Road 21N25Y. 1158 Comment
  CHSC44203  Lathyrus sphaericus Vernon Oswald 1988-5-27 3343 Butte 5782 Kibler Rd, Paradise. 585 Comment
  CHSC115430  Lathyrus sulphureus Ariana Gehrig 2013-4-30 Butte Paradise Lake, Magalia. Along pathway. 783 Comment
  CHSC100983  Lathyrus tingitanus L. P. Janeway 2008-4-2 9243 Butte Northern Sierra Nevada Foothills. Oroville; along high flat bank on east side of Feather River between Thermalito Diversion Dam and the Fish Barrier Dam. 65 Comment
  CHSC101972  Layia fremontii J. Boze 1982-5-8 437 Butte Along edge of Horseshoe Lake in Upper Bidwell Park, Chico. Comment
  CHSC3453  Layia fremontii Judy Potter 1966-3-21 Butte Roadside-Pentz Road 1 mile east of US 99E. Comment
  POM30571  Layia fremontii C. C. Bruce 1897-05 1845 Butte [Unspecified] Comment
  SEINET7042711  Layia fremontii A. G. Vestal 1963-5-9 s.n. Butte Ca. 14.2 miles southeast of Chico. Nelson quadrangle UTM Zone 10, 606440mE, 4378330mN. Comment
  JEPS87140  Leersia oryzoides Lowell Ahart 1992-9-9 6919 Butte about 1/2 mi se of Kunkle Reservoir (below the high water line of Lake Oroville); Lake Oroville 243 Comment
  CHSC34086  Lemna minor J. D. Jokerst 1981-3-29 1271 Butte Top of North Table Mt, ca 1.0 mi N of Cherokee Rd. 373 Comment
  UCD150365  Lemna minor William Anderson 1964-8-15 s.n. Butte Richvale-Oroville Rd. Comment
  CDA42937  Lemna minuta L. Ahart 2012-10-2 18491 Butte On the south side of Big Chico Creek, about 50 yards east of Table 5, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  SEINET10474774  Leontodon leysseri Mary Susan Taylor 1977-8-16 Taylor 1444 Butte Butte College Campus, ca. 15 mi S of Chico. With Marc Hayes. 61 Comment
  CHSC82421  Leontodon saxatilis subsp. longirostris Lowell Ahart 2002-5-7 9610 Butte High banks of a pond, at the beginning of a southeast branch of Schirmer Ravine, about 50 yards east of the pond on the east side of Cherokee Road, North Table Mountain, about 4 miles (air) north of Oroville. 228 Comment
  CHSC99323  Leontodon saxatilis subsp. longirostris Lowell Ahart 2008-5-8 14728 Butte Below the high water line of Lake Oroville, about 250 yards south of the poor parking area, on the east side of McCabe Creek, about 3/4 mile southwest of the Enterprise Bridge, about 11 miles (air) east of Oroville. 259 Comment
  UCR237329  Leontodon taraxacoides George K. Helmkamp, E. A. Helmkamp 2012-4-14 18736 Butte Northern Sacramento Valley, Middle Honcut Road, 1.5 miles east of CA-70, ESE of Gridley 18 Comment
  JEPS115570  Lepechinia calycina Lowell Ahart 2009-5-23 15759 Butte About 10 miles northeast of Chico, Upper Bidwell Park, about 1/4 mile west of the intersection of Highway 32 and Ten Mile House Road. On the east side of Guardians Trail by shrubs, about 150 yards southwest of Ten Mile House Road 407 Comment
  SEINET13946707 Image available Lepechinia calycina T. A. Ranker, P. G. Trapp 1994-1 1615 Butte Pence Road, S of Paradise, Cherokee Quad (7.5 min map), along road; ca 1300 ft alt., T21N, R4E, SEC6 396 Comment
  CHSC65989  Lepidium didymum Vernon H. Oswald 1996-5-9 7548 Butte Sacramento Valley. 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 levee at the SW corner of the S paddock of Tract 7, Sanctuary II. 32 Comment
  JEPS120954  Lepidium didymum Lowell Ahart 2013-4-20 18557 Butte Corral at the barn, about 1/4 mile N of Honcut Cemetery, about 3.25 air miles NE of Honcut. Comment
  RSA500419  Lepidium latipes Vernon H. Oswald, L. P. Janeway 1989-4-17 3735 Butte Butte Sink Wildlife Area (W portion of Schohr Ranch), between the ranch road and Little Dry Creek near the S gate on Gridley-Colusa Hwy. 18 Comment
  HSC64066  Lepidium nitidum J. P. Smith 1973-3-22 5910 Butte Along Hwy. 149, just N of junction with Hwy. 70 Comment
  SEINET10841497  Lepidium perfoliatum Lowell Ahart 1984-6-8 Ahart 4680 Butte Along the edge of the dirt road, the road forks here and one goes to Feather Falls and the other to Lumpkin Ridge Rd, ca. 3 mi NE of Ponderosa Dam, ca. 3 mi N of Forbestown; Yellow Pine Forest. 500 Comment
  CAS-BOT-BC273950  Leptochloa fusca subsp. fascicularis Herbert L. Mason 1945-9-19 12730 Butte Gray Lodge Game Refuge, northwest of Pennington Comment
  CHSC110334  Leptochloa fusca subsp. fascicularis B. Castro 2011-10-19 1915 Butte Sacramento Valley. At N end of Chico, just S of the Chico Airport, along Sycamore Creek ca 0.6 mi downstream (W) of its crossing under the Cohasset Hwy bridge and ca 500 ft E of its confluence with Sheep's Hollow. Depression in low flat floodplain on N side of channel, excavated and leveled in 2010 in a sediment removal project. 54 Comment
  CHSC113099  Leptochloa fusca subsp. fascicularis Lowell Ahart 2013-10-12 19109 Butte On the east side of Palermo Honcut Highway, about 20 yards south of Palermo Road, Palermo. 51 Comment
  CHSC75986  Leptochloa fusca subsp. fascicularis Lowell Ahart; Vernon H. Oswald 1999-8-13 8153 Butte Along the east side of the Sacramento River, northwest of Parrott Landing, about 1 miles southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  RSA796044  Leptochloa fusca subsp. fascicularis L. Ahart 2011-10-29 17731 Butte South side of Biggs Princeton Road, about 500 yards west of Riceton Highway, about 1 mile northwest of Biggs. 27 Comment
  UCSB63627  Leptosiphon bicolor Curtis, Lisa 1982-4-17 Butte no data 88 Comment
  CHSC67372  Leptosiphon bolanderi James D. Jokerst; R. A. Schlising 1985-4-8 2222 Butte Above Hwy. 70 2.3 mi SW of Pulga Rd. 609 Comment
  JEPS124394  Leptosiphon ciliatus Lowell Ahart 2015-6-16 20236 Butte About 4 miles (by road) northwest of Fall River Bridge, about 5 1/2 miles (air) northwest of Camp 18, about 9 miles (air) northeast of Feather Falls. Comment
  CHSC33250  Leptosiphon filipes R. A. Schlising; R. Banchero 1980-7-7 3852 Butte NE of village of Feather Falls, 0.5 mi N of Fall River Campground and bridge. Roadside. Comment
  CHSC62125  Leptosiphon filipes L. P. Janeway 1993-6-23 4401 Butte Plumas National Forest. North side of French Creek, 0.5 mi west of mouth of Ram Creek; north side of Rd 22N34. 615 Comment
  CHSC94279  Leptosiphon harknessii Lowell Ahart 2006-7-16 13008 Butte On the west side of the poor dirt road, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1524 Comment
  POM219474  Leptosiphon harknessii E. B. Copeland 1931-7-1 681 Butte Jonesville. 1500 Comment
  CHSC86859  Leptosiphon parviflorus L. P. Janeway; John Hunt 2003-5-21 7790 Butte Northern Sierra Nevada Foothills. Foreman Creek Recreation Area, Lake Oroville; top of north/south trending ridge between Foreman Creek and Lake Oroville to the west; 2.6 km west-northwest of Canyon Creek Bridge. 442 Comment
  CHSC25325  Lessingia nana M. Hayes; Warner 1977-8-29 52 Butte Next to Firing Range in Upper Bidwell Park, Chico. 80 Comment
  CHSC38376  Lessingia nemaclada Vernon Oswald 1983-10-2 1050 Butte Upper Bidwell Park, Chico, on the north rim about half way between the heads of the intermittent streams which flow into Sycamore Creek. 347 Comment
  CHSC39349  Lessingia nemaclada Lowell Ahart 1983-6-30 4179 Butte Along the dirt road, about 1 1/2 miles north-east of Concow Res. 550 Comment
  UC1287454  Lessingia virgata Willard Spence 1962-7-24 731 Butte along alternate Rt. 40 4 mi s Oroville Comment
  CHSC3416  Leucojum aestivum Judy Potter 1966-3-9 Butte Chico State College, Chico. 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
  SEINET10895981  Lewisia cantelovii Mary Susan Taylor 1979-9-28 Taylor 2194 Butte Butte County line at Hwy 70, between boundry and Arch Rock tunnel; granitic soils and dome outcrop. 488 Comment
  CHSC57131  Lewisia nevadensis L. P. Janeway; R. A. Schlising 1988-7-16 3024 Butte Meadow at 'headwaters' of Willow Creek. 1935 Comment
  CHSC57134  Lewisia triphylla L. P. Janeway; R. A. Schlising 1988-7-22 3050 Butte Upper Coon Hollow; just below saddle between Coon Hollow and Chips Creek. 1920 Comment
  CHSC105519  Ligusticum grayi Lowell Ahart 2010-9-28 17243 Butte On damp black rich soil, meadow edges or under red fir trees, about 50 yards east of the poor dirt road, 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 Philbrood Reservoir. 1886 Comment
  JEPS117613  Lilaea scilloides Lowell Ahart 2010-6-9 16789 Butte About 100 yards west of the fence, about 1/2 mile south of the improved parking area and Cherokee Road, North Table Mountain, about 5 1/2 iles (air) northeast of Oroville 398 Comment
  UCR231506  Lilium Anna M. Hurlbutt 2009-8-7 023 Butte Northern Sierra Nevada Mtns., vicinity of Inskip Inn, end of paved part of Skyway Rd., north of Paradise 1463 Comment
  CHSC43046  Lilium pardalinum subsp. pardalinum L. P. Janeway 1987-6-5 2139 Butte French Cr Rd 6.2 mi from OroQuincy Hwy and Stanwood Saddle. Along Ram Cr ca 0.2 mi up from mouth at French Cr. 609 Comment
  CHSC44652  Lilium pardalinum subsp. pardalinum L. P. Janeway 1988-7-2 2962 Butte Near the rd to French Cr, 0.9 mi S of Coyote Gap. 1188 Comment
  CAS-BOT-BC133047  Lilium washingtonianum subsp. washingtonianum A. A. Heller 1928-6-28 14670 Butte On the ridge south Butte Creek, Butte Meadows Comment
  CAS-BOT-BC110626  Limnanthes alba Helen M. Edwards 1917-6-1 s.n. Butte De Sabla. Comment
  CHSC31351  Limnanthes alba P. Lynn Lester 1980-4-14 21 Butte Ca. 3 yds e of Meridian Rd, ca. 0.1 mi n of Wookey Rd, ca. 0.9 mi s of Pine Cr, ca. 3 mi e of Hwy 99, ca. 7 mi nnw of Chico. 88 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
  SEINET10903112  Limnanthes alba Mary Susan Taylor 1980-4-19 Taylor 2541 Butte S side of Butte Creek, on dry bluffs above the creek in Foothill Woodland, ca. 1/4 mi upstream from Honey Run Covered Bridge, ca.. 6 mi E of Chico. With J.D. Jokerst. 183 Comment
  CHSC46293  Limnanthes alba subsp. alba Vernon Oswald 1989-5-11 3763 Butte Santos Rd between Hwy 32 and Doe Mill Ridge, s of Little Chico Creek. 335 Comment
  CHSC60992  Limnanthes alba subsp. alba Lowell Ahart 1993-5-17 6951 Butte On the bottom of a large vernal pool, on the west side of Dunstone Road, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 60 Comment
  CHSC52408  Limnanthes douglasii subsp. rosea John Copeland 1980-2-20 10 Butte Bordering vernal pool, 55 ft NE of locked gate, 0.5 mi E of Meridian Rd, 1.5 mi N of hwy 99N, 5.2 mi N of Chico. Comment
  UCD116438  Limnanthes floccosa Jeff Dole 1988-3-28 s.n. Butte east of Chico airport. Comment
  CHSC29028  Limnanthes floccosa subsp. californica J. D. Jokerst 1980-3-27 520 Butte Ca 1/2 mi N of Chico Muni Airport, E of Cohasset Hwy. 97 Comment
  CHSC67555  Limnanthes floccosa subsp. californica James D. Jokerst 1991-4-18 3241 Butte N of Hwy. 32 across from church. 76 Comment
  UC1748336  Limnanthes floccosa subsp. floccosa James D. Jokerst 1988-3-15 3047 Butte ca. 100 m SE of Keefer Road Comment
  RSA0119059  Limnophila X ludoviciana Lowell Ahart 2013-9-20 19062 Butte About 20 yards north of Hamilton Road, about 1/8 mile east of Riceton Highway, about one mile southeast of the Rice Experiment Station. 30 Comment
  CHSC42871  Limosella aquatica Lowell Ahart 1987-5-6 5576 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  UC718541  Linanthus bolanderi Carl B. Wolf 1937-3-29 Butte 7.8 mi below Paradise (on Chico Road); Sierra Nevada Foothills 152 Comment
  CHSC3813  Linanthus dichotomus L. E. Dunkel 1965-3-30 4 Butte Side of hill ca. 25 yards east of State Highway 32 at curve 7 mi. e of Chico City limits (99 Freeway overpass). 357 Comment
  JEPS48319  Linanthus filipes Paul C. Hutchison with J. K. Wright and R. Bacigalupi 1963-6-1 2687 Butte w side Pulga Bridge; North Fork of Feather River 472 Comment
  UC726830  Linanthus filipes A. A. Heller Apr 1938 15023 a Butte e of Chico (just n of the golf links) Comment
  UC947528  Linanthus parviflorus A. G. Vestal 1947-4-30 Butte road to Cherokee Comment
  CHSC31875  Lindernia dubia var. anagallidea L. Ahart 1973-6-21 255 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC76007  Lindernia dubia var. anagallidea Lowell Ahart; Vernon H. Oswald 1999-8-13 8131 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
  JEPS120849  Lindernia dubia var. anagallidea Lowell Ahart 2013-7-9 18832 Butte South side of North Honcut Creek, west of the steel power line, about 2 air miles northeast of Honcut, about 13 air miles southeast of Oroville. Comment
  UC1101441  Lindernia dubia var. dubia Herbert L. Mason and Verne Grant 1946-9-26 13138 Butte 3 mi w Biggs Comment
  CDA13285  Linnaea borealis var. longiflora G. F. Hrusa, T. D. Wilfred 1996-7-9 13133 Butte Plumas National Forest; along Jordan Ck, at top of waterfall above confluence with Marble Creek. S of Hwy 162 near Roger's Cow Camp Comment
  CHSC31954  Lipocarpha aristulata J. D. Jokerst; R. A. Schlising 1980-7-2 926 Butte Adjacent to Garland Rd. 1.3 mi SE of Hwy 32 (ca. 4 airline miles NNE of Forest Ranch). Comment
  CHSC45133  Lipocarpha aristulata Vernon Oswald 1987-9-7 3231 Butte Feenstra's Riverview Orchard located at the w end of Cana Hwy between the s half of Cana Lake (on Dicus Slough) and the Sacramento River. 45 Comment
  CHSC112327  Lipocarpha micrantha Lowell Ahart 2013-7-9 18831 Butte South side of North Honcut Creek, west of the steel power line, about 2 mile (air) northeast of Honcut, about 13 miles (air) southeast of Oroville. 37 Comment
  UC2026863  Liquidambar styraciflua Lowell Ahart, Susan Bazell, Josephine Guardino, Wes Dempsey 2012-6-28 18233 Butte On the northeast side of Sycamore Pool, Lower Bidwell Park, Chico. Comment
  SEINET10477991  Lithocarpus densiflorus var. echinoides Mary Susan Taylor 1980-5-27 Taylor 2642 Butte T21N R6E sc sec 30. Big Bend quad. On trail (around parking lot) to Big Bald Rock, ca. 3 mi E of Lake Madrone; Yellow Pine Forest, granitic soils. 998 Comment
  CAS-BOT-BC430879  Lithophragma bolanderi Lowell Ahart 1980-5-29 2357 Butte 5 miles north-east of Mountain House 1100 Comment
  CHSC2819  Lithophragma bolanderi David Prall 1965-3-14 9 Butte At edge of cliff ca. 30 yds. south of Neal Rd. 1mile East of HW 99E. 106 Comment
  CAS-BOT-BC432266  Lithophragma campanulatum A. A. Heller 1919-5-18 13178 Butte Mosquito Creek between Appleton and Coutelence Comment
  SEINET12216579  Lithophragma heterophyllum S. T. Heaston 1982-1 4 Butte ca 1 mi NE of Chico Golf Course Bridge, along N side of Big Chico Creek 122 Comment
  JEPS105681  Logfia filaginoides L. P. Janeway and John Hunt, Adam Henderson 2003-5-13 7784 Butte Northern High Sierra Nevada; E side of Middle Fork Feather River arm of Lake Oroville, 1.0 km SW of mouth of Frey Creek 299 Comment
  JEPS107767  Logfia gallica Lowell Ahart 2005-5-7 11787 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
  HSC38061  Logfia gallica Thomas W. Nelson, Jane P. Nelson 1976-5-10 2468 Butte Beside SR 191 just N of its junction with SR 70 Comment
  CHSC66461  Lolium multiflorum Vernon H. Oswald; Lowell Ahart 1996-6-10 7734 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 bank of the Sacramento River at the N end of the Riparian Sanctuary. 28 Comment
  JEPS103519  Lolium perenne Lowell Ahart 2002-6-2 9675 Butte Drainage, E of the large exposed drain pipe, road cut on the S side of Lumpkin Road, ca 1 mile NE of the intersection of Lumpkin Road and Forbestown Road, ca 12 miles (air) E of Oroville. 548 Comment
  RSA718953  Lolium perenne subsp. multiflorum L. Ahart 2006-9-28 13382 Butte East side of the North Fork of the Feather river, on the west side of Highway 70, about 50 yards southwest of the Shady Rest Area south of the Arch Rock Tunnel. 445 Comment
  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
  UCD66624  Lolium temulentum R. N. Raynor; H. A. Hannesson 1941-5-9 Butte 4 mi. N of Gridley. Comment
  CHSC29765  Lomatium dasycarpum subsp. tomentosum M. S. Taylor 1980-5-24 2742 Butte Along Rocky Honcut Creek, Peter Ahart Ranch, Honcut. 50 Comment
  CHSC62411  Lomatium macrocarpum B. Castro 1987-5-21 115 Butte Ca 9 mi E of Chico via Hwy 32 and ca 2 mi E on Altatina Drive. 493 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
  CHSC96573  Lomatium marginatum var. marginatum L. P. Janeway 2006-5-14 8596 Butte Northern High Sierra Nevada. Upper part of open serpentine slope just west of Jordan Hill Road; 0.9 km east of Sawmill Peak lookout. 953 Comment
  CHSC3473  Lomatium utriculatum Roger Jaegel 1966-3-14 88 Butte Located one forth mile north east of the Chico airport. Chico. Comment
  CHSC77417  Lomatium utriculatum Laura Bogni 1997-3-25 23 Butte Magalia grove. West side of Coutelenc Rd.; 1 mi. due W of Sawmill Peak; 1/2 mi. SE of Magalia Reservoir. 701 Comment
  JEPS48084  Lomatium utriculatum P. C. Hutchison with J. K. Wright and R. Bacigalupi 1963-6-1 2692 Butte at w. side Pulga Bridge (N. Fork Feather R.); , Pulga Bridge Comment
  CAS-BOT-BC240445  Lonicera hispidula Lowell Ahart 1983-6-21 4066 Butte Along Bloomer Hill Road. Along a poor road near a branch of Canyon Creek, 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
  CAS-BOT-BC240452  Lonicera hispidula John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-26 54412 Butte Madrone Lake near Berry Creek 600 Comment
  JEPS119550  Lonicera hispidula Lowell Ahart 2012-2-22 17739 Butte About 100 yards west of Ten Mile House Road, about 3/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  CAS-BOT-BC240685  Lonicera interrupta A. A. Heller 1914-5-18 11408 Butte Collected near Hog Spring on the Chico-Butte Meadow road. Between Chico and Forest Ranch, 8 miles from Chico Comment
  CHSC44147  Lonicera involucrata var. involucrata V. Oswald; L. Ahart 1988-7-26 3631 Butte Snow Mt. Region located ca. 6 air mi SE of Jonesville. At the base of a cliff along the north brow of a ridge running eastwards from Snow Mt. 2072 Comment
  SEINET10465044  Lonicera japonica Mary Susan Taylor 1975-6-22 Taylor 784 Butte California State University, Chico, campus. 61 Comment
  SEINET10970287  Lotus Mary Susan Taylor 1982-6-24 Taylor 4734 A Butte T23N R5E nw/se sec 30. Pulga SW quad. Around large landing site on saddle of ridge se of Flea Mt, n of Pulga, ca. 5 air mi e of Magalia. 3600 ft. 1097 Comment
  CDA31938  Lotus nevadensis var. nevadensis L. Ahart 2008-5-12 14729 Butte Below the high water line of Lake Oroville, on the east side of Sucker Creek, about 40 yards east of where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile west of the Ponderosa Dam. Comment
  SEINET10452002  Lotus purshianus Mary Susan Taylor 1979-8-4 Taylor 2171 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
  UC566229  Lotus purshianus var. purshianus C. G. Albertus 1933-7-14 44 Butte 0.5 mi w Fourteen Mile House; Chico Quad. 335 Comment
  SEINET10452013  Lotus scoparius Lowell Ahart 1985-5-31 Ahart 5037 Butte About 25 feet above the high water line of Lake Oroville, about 1/4 mile west of the Enterprise Launch Area, about 1 mile north-east of Oroville. Comment
  SEINET10874146  Lotus strigosus Lowell Ahart 1983-5-28 Ahart 4021 Butte Along trail to Feather Falls, ca. 5 mi n of the town of Feather Falls. Yellow Pine Forest; 600 m. 600 Comment
  CHSC33361  Lotus wrangelianus R. M. Winchell 1980-4-16 8 Butte Bidwell Park e of Chico along dry wash. Comment
  CHSC97334  Ludwigia palustris L. P. Janeway 2007-8-6 9149 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. Common matted plant on the floor of the pond where water level has dropped, especially closer to the edge of the pond. 776 Comment
  JEPS95926  Ludwigia palustris Lowell Ahart 1999-8-22 8186 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
  SEINET10453036  Ludwigia peploides Mary Susan Taylor 1978-5-7 Taylor 1608 Butte In and around Richvale vernal pool area, ca. 20 mi S of Chico, on W side of Hwy 99; Valley Grassland. 30 Comment
  CHSC13718  Ludwigia peploides subsp. peploides K. R. Stern 1972-9-19 3775 Butte Margin of Perkins Lake, Llano Seco Rancho, ca. 5 mi wsw of Chico. Comment
  CHSC61054  Ludwigia peploides subsp. peploides Vernon H. Oswald 1993-7-29 5736 Butte Gray Lodge Wildlife Management Area W of Gridley, 0.3 mi S of Rutherford Rd. on the first levee road E of the headquarters complex. In a drainage ditch. 19 Comment
  LA205032  Lupinus albicaulis E. B. Copeland; 1929-7-17 378 Butte above Jonesville 2100.0 Comment
  UC702964  Lupinus albicaulis A. A. Heller 1940-6-5 15704 Butte along Feather River Highway about two mi w Arch Rock Tunnel; along Feather River Highway Comment
  SEINET10874088  Lupinus albicaulis Mary Susan Taylor 1982-6-24 Taylor 4747 Butte T22N R4E se/se sec 1. Pulga quad. On serpentine on Rocky Ridge, both sides of Ponderosa Way (Rim Rd), 6.1 mi n of Jarbo Gap on Hwy 70, ne of Oroville. 2700 ft. 823 Comment
  CHSC31442  Lupinus albicaulis var. shastensis L. Ahart 1980-9-10 2642 Butte Along the edge of the road ca. 7 mi e of Millsap Bar, ca. 32 mi ne of Oroville. 1200 Comment
  CAS-BOT-BC198378  Lupinus albifrons Charles Piper Smith 1949-4-16 49104 Butte Bangor, 2.6 miles east, Yuba-Butte Bridge, Loma Rica Road Comment
  RSA104809  Lupinus albifrons var. eminens A. A. Heller 1913-5-28 10764 Butte 8 mi N of Oroville. Comment
  CHSC65456  Lupinus andersonii var. apertus Vernon Oswald 1985-6-3 1808 Butte Skyway 2.7 mi n of Stirling City. 1194 Comment
  UC204553  Lupinus bicolor A. A. Heller 1914-3-13 11198 Butte near the western base Table Mountain (hills eight mi n of Oroville); near western base of Table Mountain Comment
  UCD107337  Lupinus bicolor Collector Unknown 1925-5-17 1740 Butte Marysville Buttes. Comment
  HSC38143  Lupinus bicolor Thomas W. Nelson, Jane P. Nelson 1976-5-10 2462 Butte Beside SR 191 just N of its junction with SR 70 Comment
  UCD107191  Lupinus bicolor A. A. Heller 1914-2-2 11166 Butte Canon hf Big Chico creek 6 miles east of Chico. Comment
  RSA754861  Lupinus bicolor subsp. tridentatus L. Ahart 2009-4-26 15619 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
  SEINET10452693  Lupinus latifolius subsp. longipes Mary Susan Taylor, Lowell Ahart 1981-8-16 Taylor 4197 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
  CHSC23667  Lupinus microcarpus var. densiflorus M. S. Taylor 1976-4-27 1097 Butte On n side of Ponderosa Way, ca. 4 mi e of junct of Villas Rd and Cohasset Hwy, ca. 23 mi ne of Chico. 609 Comment
  CHSC33395  Lupinus microcarpus var. microcarpus Jeffrey D. Prouty 1979-4-18 214 Butte H. Wurlitzer Ranch, ca. 10 mi. n of Chico. In pasture ca. 800 yds. n of Singer Creek, ca. 100 yds. e of Cana-Pine Creek Road. 57 Comment
  CHSC55704  Lupinus nanus var. vallicola Steven Triano 1988-4-17 65 Butte Along e side of Hwy. 32 ca 6.5 mi n of Forest Ranch. 984 Comment
  CHSC111346  Lupinus polycarpus Lowell Ahart 2012-5-2 17952 Butte On damp dark clay soil, along the fence, west of the Government Pole Line, Upper Bidwell Park, about 1 mile east of Chico. 85 Comment
  JEPS108777  Lupinus polyphyllus var. burkei Lowell Ahart 2006-7-16 12991 Butte On the west side of Willow Creek, on the east side of a large meadow and bog, about 200 yards southeast of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
  SEINET10837992  Lupinus sellulus var. artulus Edwin B. Copel 1929-7-17 Copeland 377 Butte Above Jonesville. 2000 Comment
  SEINET12162064  Lupinus stiversii M. S. Taylor 1980-1 2715 Butte S side of Bald Rock Rd, ca 1miE of Lake Madrone Comment
  CHSC90808  Lupinus succulentus Lowell Ahart 2005-5-2 11757 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
  JEPS107771  Lupinus succulentus Lowell Ahart 2005-5-2 11757 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
  CHSC31951  Luzula cascadensis J. D. Jokerst; B. Banchero, R. A. Schlising 1980-7-16 848 Butte Chico Meadows, Scout Rd 1.1 miles N of its jct with the Skyway and Humboldt Rd. 1341 Comment
  UC600794  Luzula cascadensis H. F. Copeland 1932-8-12 Butte Meadow by Butte Creek; Jonesville 1500 Comment
  RSA774132  Luzula comosa var. comosa L. Ahart 2010-9-21 17203 Butte About 50 yards east of the poor dirt road, abut 100 yards west of Big Kimshew Creek, about 1.5 air miles NE of Jones Meadow, about 2.5 air miles SE of Philbrook Reservoir 1918 Comment
  CHSC11962  Luzula comosa var. laxa E. B. Copeland 1929-7-16 345 Butte Jonesville. 1550 Comment
  JEPS110339  Luzula comosa var. laxa Lowell Ahart 2006-7-16 12970 Butte In the 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
  CHSC30509  Luzula macrantha N. E. H. Prouty 1980-4-7 110 Butte Along Lower Rocky Honcut Creek, south of Swedes Flat Rd. 381 Comment
  CHSC94067  Luzula macrantha R. Fischer 2005-3-9 745 Butte Sierra Nevada foothills, off Hwy. 32, about 4 miles east of Chico off 10 Mile House Road in Bidwell Park. Collection made at bottom of trail near Big Chico Creek from the grassy edge of the riparian zone. 219 Comment
  CAS-BOT-BC441203  Luzula macrantha Lowell Ahart 1975-3-23 s.n. Butte Peter Ahart Ranch, Honcut Comment
  JEPS120131  Luzula subsessilis Lowell Ahart 2012-5-12 18031 Butte On the sides of South Rim Trail, about 1/2 mile southwest of the old homestead, about 5/8 mile west of Highway 32, south part of Upper Bidwell Park, about 8 1/2 miles (air) northeast of Chico. Comment
  SEINET10537469  Lychnis coronaria Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4229 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
  JEPS94688  Lycopus americanus Lowell Ahart 1998-7-18 8042 Butte about 7 air mi n of Oroville (sw of the ione oak tree, w of the cow chute on the w side of Cherokee Road); North Table Mountain, Cherokee Road 403 Comment
  POM180888  Lycopus americanus H. F. Copeland 1923-6-4 816 Butte Nelson. Comment
  CHSC74097  Lythrum hyssopifolia B. Castro; L. P. Janeway 1996-5-19 662 Butte Ca 3 air mi NE of Chico, in Upper Bidwell Park on spine of ridge between Sycamore and Big Chico Creeks, just S of North Rim Trail. 320 Comment
  UCD103040  Lythrum hyssopifolia E. M. Johnston 1915-1 W- 134 J Butte Biggs. Comment
  CHSC112044  Lythrum salicaria Lowell Ahart 2012-8-22 18422 Butte South edge of parking area at the restroom, end of road to the Larkin Road Boat Launch Area, about 1/4 mile west of Larkin Road, about 2 miles (air) southwest of the Oroville Airport. 28 Comment
  CAS-BOT-BC342654  Madia citriodora Bruce G. Baldwin; Vern Oswald 1988-6-16 715 Butte Upper Bidwell Park, south side of Big Chico Creek, just above police pistol range 91 Comment
  CHSC36529  Madia elegans L. Ahart 1982-6-4 3543 Butte 1.5 mi e of Camp 18, ca. 8 mi e of Feather Falls. 304 Comment
  UC1609068  Madia elegans Lowell Ahart 1993-6-20 6998 Butte about 1 air mi nw Lost Creek Reservoir Dam; Mooreville Ridge, Jackass Flat 1158 Comment
  SFV10347  Madia elegans M. L. Vincent 1963-6-6 370 Butte Nelson Bar Road at PGE. 300 Comment
  RSA746979  Madia elegans subsp. densifolia George K. Helmkamp, E. A. Helmkamp 2007-10-7 13078 Butte along Biggs East Highway, 1.6 miles east of CA-99 in Biggs 35 Comment
  CHSC36840  Madia elegans subsp. elegans M. S. Taylor 1982-6-24 4732 Butte Around large landing on saddle of ridge se of Flea Mt, n of Pulga, ca. 5 air mi e of Magalia. 1097 Comment
  CHSC76036  Madia elegans subsp. elegans G. F. Hrusa; T. D. Wilfred 1996-7-9 13172 Butte Sierra Nevada. Plumas National Forest. At S end of 22N12X. Approx. 0.5 m. on 22N89 and 22N12x. Immed. S of Rogers Cow Camp on Hwy 162. [Original Lat./Long. on label is '39 45 N; 121 18 W']. 1100 Comment
  CAS-BOT-BC344308  Madia exigua L. P. Janeway 1995-6-19 4796 Butte About 0.5 mi east of the western end of Jackson Ranch Ridge 1097 Comment
  JEPS124028  Madia exigua Lowell Ahart 2015-6-16 20231 Butte About 3 1/2 miles (by road) northwest of Fall River Bridge, about 5 miles (air) northwest of Camp 18, about 8 1/2 miles (air) northeast of Feather Falls. Comment
  CAS-BOT-BC342969  Madia gracilis John Thomas Howell 1962-6-15 37479 Butte Magalia 731 Comment
  CDA8274  Madia gracilis G. D. Barbe, T. C. Fuller 1982-6-14 3682 Butte Highway 70 in Feather River Canyon, above Pulga, 1.6 miles below PG&E power plant. Comment
  CHSC43623  Madia gracilis Vernon Oswald 1985-5-28 1780 Butte Service road leading to Bidwell Bar Bridge and joining Oroville-Quincy Hwy 0.2 mi s of the bridge. 304 Comment
  JEPS115868  Madia gracilis Lowell Ahart 2009-5-23 15722 Butte On the north side of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 311 Comment
  SEINET10833525  Mahonia dictyota Mary Susan Taylor 1981-4-8 Taylor 3513 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
  CAS-BOT-BC510728  Maianthemum racemosum subsp. amplexicaule A. A. Heller 1915-6-11 11968 Butte Chico Meadows in the Sierra Nevada 1219 Comment
  CAS-BOT-BC512737  Maianthemum stellatum C. R. Quick 1953-8-11 53 -99 Butte Rag Dump meadow south east of Stirling City Comment
  CHSC116212  Malacothrix floccifera Lowell Ahart 2015-6-16 20241 Butte On the northwest side of the paved road, about 3 1/2 miles (by road) northwest of Fall River Bridge, about 5 miles (air) northwest of Camp 18, about 8 1/2 miles (air) northeast of Feather Falls. 1301 Comment
  CHSC35981  Malacothrix floccifera M. S. Taylor 1982-6-24 4723 Butte E side of Ponderosa Way (Rim Rd), 1.3 mi n of its jct with Hwy 70 at Jarbo Gap. 853 Comment
  CAS-BOT-BC347379  Malacothrix floccifera John Thomas Howell 1955-6-15 30510 Butte West Branch of North Fork of Feather River 182 Comment
  SEINET10475284  Malacothrix floccifera Mary Susan Taylor 1980-7-6 Taylor 3067 Butte T26N R3E ne sec 24, Butte Meadows quad; on both sides of Hwy 32, ca. 1 mi N of Soda Springs. With R.A. Schlising. 1280 Comment
  CHSC107242  Malva nicaeensis Lowell Ahart 2011-6-3 17363 Butte Wood chipped planter area between Bidwell Mansion parking area and Gateway Science Museum, Chico. 60 Comment
  JEPS88407  Malvella leprosa Vernon H. Oswald and Lowell Ahart 1996-7-22 8094 Butte U.S. Fish & Wildlife Service parcel between 7 Mile Lane & Sacramento R. (n.e. c); Sacamento R. Nat'l Wildlife Refuge, Llano Seco Unit 33 Comment
  RSA440947  Marah fabacea K. M. Stocking 1947-4-17 27 Butte 1.2 miles S of 19th St.; Chico on Hwy 99. 59 Comment
  CHSC34446  Marah fabacea var. agrestis R. E. Preston 1979-4-19 15 Butte 75 yds nw of Singer Creek, northernmost Butte County. 56 Comment
  UC890412  Marah watsonii A. A. Heller 1914-4-27 11328 Butte 8 mi n Oroville Comment
  CHSC12135  Marsilea vestita B. A. Jenkins 1972-5-1 2 Butte 75 yds se of Humboldt Road-Fir Street Junction, Chico. Comment
  CHSC8738  Marsilea vestita S. Chulasmai 1966-4-15 6 Butte Keefer Roadside. Comment
  SEINET13709914  Marsilea vestita Lowell William Ahart, Lowell William Ahart 2002-1 9659 Butte Gray Lodge State Wildlife Management Area, 4 Mi. SW of Gridley, Edge of Drying Pond (T17N, R2E, sec 17, SE 1/4), 74 Ft. Comment
  CHSC33121  Matricaria discoidea M. S. Taylor 1981-5-15 3743 Butte Jct of 22N92 and 23N00.1, ca. 1.5 mi s of Coyote Gap, ca. 4 air mi e of Pulga on Feather River Hwy 70. 975 Comment
  CHSC390  Matricaria discoidea P. Delaplane 1965-3-23 7 Butte At entrance to H. Wurlitzer Ranch: Ca. 13 mi NW of Chico. W of Hwy 99E N. 106 Comment
  CAS-BOT-BC348087  Matricaria discoidea Lowell Ahart 1979-4-14 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CHSC23465  Meconella californica J. R. Lee 1972-4-20 2 Butte Found on hill 600 yds sw of Covered Bridge, 7.2 mi from the Chico city limits. 182 Comment
  CAS-BOT-BC422642  Meconella californica Junea Kelley 1920-4-24 s.n. Butte Los Vergils Comment
  SEINET12091625  Meconella californica S. E. Bigbee 1984-1 37 Butte Ca 50 yds S of Butte Creek and ca 350 yds W of Covered Bridge, 6.2 mi ESE of Chico 121 Comment
  CHSC71175  Medicago polymorpha Lowell Ahart 1998-6-9 7978 Butte On the east side of Cherokee Road, about 200 yards south of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CHSC947  Medicago polymorpha D. Bower 1953-7-16 Butte 4A Llano Seco. 30 Comment
  UC204541  Medicago polymorpha A. A. Heller 1914-3-7 11186 Butte along a small stream in olive orchard 8 mi n Oroville Comment
  JEPS113256  Melica californica Lowell Ahart 2007-5-29 13924 Butte About 1/8 mile south of Bald Rock Dome, on the west side of the Dome Trail, trail leads to the Middle Fork of the Feather River, about 1 1/4 miles by the trail from the trail head which is 3/10 mile east of Bean Creek Road, about 2 1/2 miles (air) northea 598 Comment
  SEINET10508156  Melica californica Lowell Ahart 1985-5-15 Ahart 4974 Butte West of Lunt Road, about 1/2 mile north of the inter- section of Lunt Road and Highway 70, north of Yankee Hill, N of Oroville. Comment
  SEINET10860812  Melica californica Roland McKee 1918-4-26 McKee s.n. Butte Dry foothills by rocks, Butte Creek, Chico Comment
  CHSC110224  Melica californica var. californica L. P. Janeway 2012-6-2 10837 Butte Northern High Sierra Nevada. Plumas National Forest; eastern slope of Bloomer Hill, 1.0 air km east of the top. 701 Comment
  CHSC110453  Melica harfordii L. P. Janeway 2013-5-20 11112 Butte Northern High Sierra Nevada. Plumas National Forest; mid-slope North Fork Feather River canyon 0.8 air km west-northwest of Cresta Powerhouse, along Camp Creek Road 0.2 road km northeast of Dixie Road. 646 Comment
  JEPS106168  Melica harfordii Lowell Ahart 2004-6-22 11112 Butte On the east margin of a gravel road, road leads to Butte Creek, south of Doe Mill Road, about 1/8 mile southwest of the bridge across Butte Creek, about 2 miles (air) southeast of Forest Ranch, about 5 miles (air) west of Stirling City 692 Comment
  RSA700220  Melica harfordii L. Ahart 2004-6-22 11112 Butte on the east margin of a gravel road, road leads to Butte Creek, south of Doe Mill Road, about 1/8 mile southwest of the bridge across Butte Creek, about 2 miles (air) southeast of Forest Ranch;, about 5 miles (air) west of Stirling City. 692 Comment
  SEINET10901843  Melica harfordii Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4231 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
  SEINET10452218  Melilotus albus Mary Susan Taylor 1975-7-4 Taylor 830 Butte On S side of Big Chico Creek, at Five Mile Dam, Upper Bidwell Park, Chico. 91 Comment
  HSC96978  Melilotus indicus L. Ahart 2005-5-2 11772 Butte E side of the Sacramento River, NW of Parrott Landing, about 1 mi. SE of Ord Ferry, about 2 mi. SE of Ordbend, about 12 mi. SW of Chico. 26 Comment
  CHSC54438  Melilotus officinalis Vernon H. Oswald; Lowell Ahart 1991-7-15 4734 Butte Forest Rd 23N60 (Jordan Creek-Marble Creek Rd), 2.1 miles east of its junction with Oroville-Quincy Hwy, ca. 5.75 miles (air) northeast of Brush Creek. 1082 Comment
  CHSC102627  Melissa officinalis Lowell Ahart 2009-7-9 16014 Butte On the east edge of big Chico Creek, about 15 yards west of Ten Mile House Road, Upper Bidwell Park about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 181 Comment
  CHSC29816  Melissa officinalis M. S. Taylor; J. D. Jokerst 1979-10-13 2252 Butte By creek crossing Jordan Hill Rd (Ponderosa Way on some maps) ca. 0.8 mi n of its jct with Concow rd., ca. 5 mi e of Paradise. 426 Comment
  JEPS120581  Mentha arvensis Lowell Ahart 2013-10-19 19142 Butte Along the west side of the Sacramento River, about 300 yards north of the bridge, west of Butte City Comment
  CHSC44398  Mentha canadensis Lowell Ahart 1988-6-21 6045 Butte Along the edge of te North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC116316  Mentha pulegium Lowell Ahart 2015-11-18 20661 Butte Marsh like area, on the west side of the Feather River, about 1/2 mile south of Palm Avenue, about 1 1/2 miles southeast of the intersection of Palm Avenue and Larkin Road, about 5 miles (air) northeast of Gridley. 26 Comment
  CHSC46454  Mentzelia dispersa V. Oswald; L. Ahart 1989-6-27 3817 Butte Ridge east of Scotts John Creek, ca. 3.3 mi (air) e of Jonesville. 2042 Comment
  UC426943  Mertensia ciliata E. B. Copeland 1930-6-23 450 Butte Jonesville 1500 Comment
  CHSC100807  Micranthes aprica R. A. Schlising; L. Janeway 1988-7-1 4550 Butte N part of county: end of road above Summit Lake, on Snow Mountain. Comment
  CHSC29229  Micranthes californica M. S. Taylor; J. D. Jokerst, L. Ahart 1980-4-6 2436 Butte SE corner of jct of Rocky Honcut Creek and Swedes Flat Rd, ca. 2 mi e of Oroville-Bangor Hwy, ca. 10 mi s of Oroville. 365 Comment
  CHSC82595  Micranthes californica Samantha Mackey Hillaire 2002-3-18 307 Butte Table Mountain, on a cliff overlooking Beatson Hollow next to a waterfall. On the south side of a stream channel. 365 Comment
  UCD102751  Micranthes integrifolia E. B. Copeland 1929-7-20 369 Butte Jonesville. 1550 Comment
  SEINET223506  Microcala quadrangularis Unknown 1980-5-7 3294 Butte Peter Ahart Ranch ca 2-1/2 mi NNE of Honcut between Oroville and Maryville, 30 Comment
  CHSC39531  Micropus californicus var. californicus Lowell Ahart 1983-6-12 4043 Butte Along the edge of the road and near a small meadow, about 1 mile south of Crystal Hill, near Oregon Gulch, near Lake Oroville, about 7 miles south-west of Feather Falls. 425 Comment
  CAS-BOT-BC348699  Microseris acuminata Lowell Ahart 1979-5-11 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  POM35005  Microseris lindleyi C. C. Bruce 1898-05 2461 Butte [No locality information provided] Comment
  CHSC24770  Microsteris gracilis P. J. Welch 1976-4-11 7 Butte Ca. 2 yds s of Sycamore Creek and ca.100 yds w of Cohasset Rd., 2.35 mi n of Chico. 60 Comment
  RSA712856  Mimulus aurantiacus subsp. aurantiacus L. Ahart 2006-5-10 s.n. Butte 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. 355 Comment
  SBBG40472  Mimulus douglasii J. Ingram, A. Ingram 1960-4-5 288 Butte Neal Rd, ca. 2 mi S of Paradise Comment
  SEINET12334056  Mimulus glaucescens Unknown 1968-1 7 Butte ca 2.2 mi from end of pavement in Upper Bidwell Park, Chico 183 Comment
  JEPS110327  Mimulus guttatus Lowell Ahart 2006-7-25 13063 Butte In the west part 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
  JEPS126560  Mimulus guttatus Lowell Ahart 2016-5-24 20862 Butte About 150 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. Comment
  POM43708  Mimulus guttatus C. C. Bruce 1897-02 2105 Butte Little Chico. Comment
  RSA409258  Mimulus kelloggii J. H. Morrison 1932-5-30 s.n. Butte Durham. Comment
  RSA712757  Mimulus layneae L. P. Janeway 2005-5-29 8399 Butte Northern High Sierra Nevada. Between the east end of Hollywood Drive, Magalia and the upper end of Magalia Reservoir. (NAD83) 762 Comment
  JEPS87142  Mimulus leptaleus Lowell Ahart 1992-7-29 6870 Butte about 1/2 mi nw Lotts Lake (about 1 mi e of the Carr Mine) 1828 Comment
  CHSC44774  Mimulus moschatus R. Banchero 1980-7-2 277 Butte Along Powelton Rd 4.5 mi NE of its jct with the Skyway (near old Powelton site). 1097 Comment
  UC1509660  Mimulus nasutus M. S. Taylor and K. Tharp 1983-3-12 5442 Butte ca. 3 mi sse Chico (along small rd. off Stillson Canyon Rd. (leading to Mannion property)); Chico quad. 152 Comment
  UC1586471  Mimulus nasutus Vernon H. Oswald and Lowell Ahart 1991-7-15 4741 Butte ca. 5.5 air mi ene Brush Creek (Milsap Bar Rd. (Forest Rd. 22N62), 6.4 mi w of Feather Falls-Little Grass Valley Rd. (Forest Rd. 22N94)) 845 Comment
  POM193346  Mimulus primuloides var. pilosellus E. B. Copeland 1930-7-15 460 -A Butte Jonesville. 1500 Comment
  POM181509  Mimulus tricolor H. F. Copeland 1923-5-1 s.n. Butte Nelson. Comment
  CHSC10733  Minuartia californica Lowell Ahart 1967-4-11 Butte Peter Ahart Ranch, Honcut. 42 Comment
  CHSC40650  Minuartia californica Ahart; Jokerst 1985-3-24 4868 Butte Found west of Lunt Road, about 1/2 mile north of the intersection of Lunt Road and Highway 70, north of Yankee Hill. 550 Comment
  HSC68100  Minuartia californica J. P. Smith 1973-3-22 5907 Butte Along S.R. 149 just N of junction with U.S. 70 Comment
  JEPS110185  Minuartia cismontana Lowell Ahart 2006-4-28 12548 Butte Open flat pasture, south of the old dirt road, about 1/4 mile southeast of the reservoir, about 2 miles by the dirt road northwest of the Iron Gate along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 316 Comment
  JEPS114588  Moenchia erecta subsp. erecta Lowell Ahart 2008-5-30 14800 Butte Mowed parking area at the cemetery, about 300 yards north of Oregon Gulch, about 10 miles (air) northeast of Oroville 331 Comment
  RSA0106565  Mollugo verticillata Lowell Ahart 2014-9-23 19870 Butte On the northeastern part of Horseshoe Lake, about 100 yards northeast of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. 89 Comment
  RSA755371  Mollugo verticillata L. Ahart 2009-8-13 16274 Butte In the channel, about 100 yards east of the diversion structure that controls Mud Creek diversion and Lindo Channel, northeast of Hooker Oak, Upper Bidwell Park, Chico. 69 Comment
  UCD99635  Mollugo verticillata Richard R. Halse 2006-8-2 6979 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  CAS-BOT-BC435068  Mollugo verticillata A. A. Heller 1914-6-2 11473 Butte Hills 8 miles north of Oroville Comment
  CAS-BOT-BC435073  Mollugo verticillata Lowell Ahart 1979-5-20 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  CHSC97331  Monardella breweri subsp. lanceolata L. P. Janeway 2007-6-26 9074 Butte Northern High Sierra Nevada. Plumas National Forest; along Road 28 along the southern end of Swayne Hill; about 1.7 air km northeast of the confluence of French Creek at the North Fork Feather River arm of Lake Oroville. 750 Comment
  LA87862  Monardella odoratissima Elizabeth McClintock; 1968-8-1 sn Butte Feather River, Pulga Bridge Comment
  CHSC52213  Monardella sheltonii L. P. Janeway 1988-6-25 2888 Butte Near Paradise; Wayland Rd (Foster Rd) 1.1 mi E of Neal Rd. 381 Comment
  RSA71308  Monardella sheltonii L. S. Rose 1951-6-26 51019 Butte Jarboe Pass. 22 mi. n. of Oroville 579 Comment
  UC1564772  Monolepis nuttalliana V. Oswald and L. Ahart 1989-8-22 3959 Butte ca. 3.5 mi. (air) s.e. Jonesville (Butte Creek House Meadow on e. side of Humbug Rd., at the corral); Butte Creek House Meadow 1767 Comment
  RSA636051  Montia fontana Michael A. Vincent, Ethan H. Freid 1998-4-6 8127 Butte Table Mountain Comment
  CHSC46092  Montia fontana subsp. amporitana L. P. Janeway; B. Castro 1989-1-29 3172 Butte North side of cyn of Big Chico Cr at upper edge of flat top of the spur ridge above the diversion; 3.1 mi E of Wildwood Ave via Upper Park Rd. 231 Comment
  CHSC97378  Montia fontana subsp. chondrosperma Paul Maslin 2006-3-17 38 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). UTM: 1061036E 4412565N. Comment
  CHSC33124  Montia linearis M. S. Taylor 1981-5-22 3801 Butte In Flea Valley, ca. 100 ft e of jct Ponderosa Way and turnoff to Sawmill Peak, ca. 2 ft n of Sawmill Peak Rd. ca/ 4 air mi e of Magalia. 1127 Comment
  SEINET10572665  Montia linearis Mary Susan Taylor 1981-5-22 Taylor 3801 Butte T23N R4E sw/sw sec 24, Pulga quad. In Flea Valley, ca. 100 ft E of jct of Ponderosa Way and turnoff to Sawmill Peak, ca. 2 ft N of Sawmill Peak Rd, ca. 4 air mi E of Magalia. 3700 ft. 1128 Comment
  CHSC12406  Montia parvifolia Lowell Ahart 1973-5-31 Butte Near Little North Fork, Feather River. 1066 Comment
  CAS-BOT-BC264288  Muhlenbergia andina Lowell Ahart 1987-6-9 5740 Butte On the east side of the North Fork of the Feather River, near the Poe Power House, about 2 miles outh-east of Jarbo Gap 271 Comment
  CAS-BOT-BC260541  Muhlenbergia filiformis Clarence R. Quick 1963-7-16 63 54 b Butte Section Corner Meadow, E of Pulga, Feather River Canyon 1463 Comment
  CHSC40647  Muhlenbergia filiformis Lowell Ahart 1985-10-12 5198 Butte Near the east side of Kunkle Reservoir, about 2 miles south of Paradise. 502 Comment
  CHSC69739  Muhlenbergia filiformis Lowell Ahart 1997-10-20 7931 Butte On the west side of the sharp bend in the South Fork of the Feather River, about 1/4 mile north of the bridge across the river, about 3/4 mile north of Golden Trout Crossing, 3 miles (air) northwest of Sly Creek Reservoir Dam. 914 Comment
  RSA129344  Muhlenbergia filiformis H. S. Yates 1936-8-13 6100 Butte Butte Meadow. 1341 Comment
  UC1609245  Muhlenbergia filiformis Lowell Ahart 1993-7-6 7047 Butte on s side of dirt road about 1/4 mi w Lost Creek Reservoir 1036 Comment
  CHSC113427  Muhlenbergia minutissima Lowell Ahart 2014-7-7 19580 Butte North of the bog, Coon Hollow, about 2 miles (air) north of Philbrook Reservoir. 1690 Comment
  SEINET10508207  Muhlenbergia rigens Mary Susan Taylor Taylor 992 Butte Bidwell Park, Chico. Comment
  CHSC12765  Myosurus apetalus var. borealis T. Rinker 1974-4-23 23 Butte Found in vernal pool at Broyles Road and Hwy. 99, ca. 14 mi n of Chico. 54 Comment
  CHSC45423  Myosurus minimus Lowell Ahart 1980-5-4 2180 Butte On the sides of a small wash in a pasture, south-west of the intersection of Nelson Avenue and 20th. Street in Thermalito. 60 Comment
  CHSC45962  Myosurus minimus subsp. minimus Lowell Ahart 1974-3-18 324 Butte On the bottom of a vernal pool, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC58675  Myosurus minimus subsp. minimus M. Bailey 1991-4-21 Butte Bottom of drainages, Butte Community College campus. Drainages located atop a ridge north of Wallis Ponds and east of Williams Road, ca 1/4 mi north of Pentz Road. 121 Comment
  UC1100017  Najas graminea Verne Grant and Herbert L. Mason 1946-8-15 13047 Butte Greylodge Game Refuge, near caretaker's house Greylodge Game Refuge. Comment
  UC1586518  Najas graminea Lowell Ahart 1991-9-14 6723 Butte About 2 miles east of Honcut, Joie Osgood Ranch. 45 Comment
  UCD138158  Najas guadalupensis subsp. guadalupensis Herbert L. Mason; Verne Grant 1946-8-15 13053 Butte #833 Irrigation Ditch, near caretaker's house, Greylodge Game Refuge, Butte Sink. Comment
  CHSC101668  Nassella pulchra Lowell Ahart 2009-4-26 15617 Butte In a small open meadow, about 150 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles norhteast of Chico. 286 Comment
  JEPS115953  Nassella pulchra Lowell Ahart 2009-4-26 15617 Butte In a small open meadow, about 150 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles norhteast of Chico 286 Comment
  UCD116084  Nasturtium officinale Charles Martin 1986-4-26 11 Butte California: Sutter Co. Sutter Buttes, Canyon SE of North Butte, R2E, T16N, Sec. 20, SW 1/4. Elev. ca. 600 ft. 182 Comment
  SEINET12279150  Navarretia cotulifolia Unknown 1936-1 13045 Butte near Chico Comment
  UC1609052  Navarretia divaricata Lowell Ahart 1993-7-29 7125 Butte 6.5 mi ne Stirling City (2.5 mi ne of Bald Mountain, .12 mi n of the Snow Mine, on the e side of an old water ditch for gold mining) 1676 Comment
  UC426936  Navarretia divaricata E. B. Copeland 1930-7-17 443 Butte Jonesville 1550 Comment
  UCD48390  Navarretia divaricata H. F. Copeland 1930-7-28 s.n. Butte Jonesville, Butte County. Beside South Willow Creek in shady flat. 1828 Comment
  CHSC109216  Navarretia filicaulis B. Castro; L. P. Janeway 2004-7-13 1469 Butte Northern High Sierra Nevada. Along Old Forbestown Road 1.6 road mi SE of Forbestown Reservoir Road; 2.25 air mi E of Forbestown; near headwaters of Costa Creek; 0.15 rd mi NW of jcn with Abernathy Rd. 829 Comment
  CHSC112682  Navarretia filicaulis Lowell Ahart 2013-7-1 18818 Butte Open disturbed area, about 150 yards east of the intersection of Forbestown Road and Black Bart Road, about 3 1/4 miles (air) southwest of Forbestown. 737 Comment
  CHSC33252  Navarretia filicaulis M. Banchero 1979-9-2 28 Butte 6 mi NE Forest Ranch on Hwy 32; on roadside fill. Comment
  JEPS104308  Navarretia heterandra Lowell Ahart 2003-5-27 10216 Butte Rifle and Trap Range, ne of Horseshoe Lake, n of Parking Area E, Upper Bidwell Park, ca 1 1/2 mi e of Manzanita Avenue, Chico. 103 Comment
  UC1719865  Navarretia heterandra David Fruchter 1979-9-18 177 Butte Oroville Airport Comment
  UC196268  Navarretia intertexta A. A. Heller 1914-5-11 11386 Butte 8 mi n Oroville Comment
  CHSC35115  Navarretia leptalea R. A. Schlising 1980-7-7 3856 Butte E part of county, Lumpkin Ridge, along Lumpkin/La Porte Road, just W of road dropping down to Fall River. 1280 Comment
  CHSC20676  Navarretia leucocephala M. S. Taylor 1975-4-29 539 Butte In vernal ponds, ca. 500 yds s of Pentz Rd, ca. 1/4 mi e of Hwy 99, ca. 15 mi s of Chico. 60 Comment
  UCSB63717  Navarretia leucocephala Romano, Marci 1986-4-15 Butte junction of Broyles Rd and Hwy 99 11 m N of Chico 68 Comment
  CHSC75392  Navarretia leucocephala subsp. leucocephala Jennifer Slater 1997-4-20 24 Butte Upland area at the Wurlitzer addition of the Vina Plains Preserve, west of Highway 99, approx. 10 miles north of Chico. 67 Comment
  UCD80642  Navarretia leucocephala subsp. leucocephala CNPS SN Foothill Team 2005-5-3 SNFN 0198 d Butte City of Chico, Doe Mill Meadowfoam Preserve, ca. 200 m at 240 degrees from the preserve gate, and ca. 75 m from the east fence. 85 Comment
  UC702921  Navarretia leucocephala subsp. minima Lewis S. Rose 1939-6-5 39196 Butte Honcut 30 Comment
  CHSC45358  Navarretia nigelliformis subsp. nigelliformis Vernon Oswald 1988-4-18 3274 Butte Harter's Cherokee Ranch located on the w side of Hwy 99 between Hwy 149 and Dry Creek. 53 Comment
  CAS-BOT-BC233625  Navarretia pubescens Lewis S. Rose 1945-5-12 45012 Butte Richardson Springs 304 Comment
  CHSC46223  Navarretia pubescens Pauleen Broyles 1987-6-19 1058 Butte Ca 13 km ne of Oroville. Ca 1.6 km s of Crystal Hill between middle and south forks of Feather River on Lake Oroville. Along a dirt road. 360 Comment
  JEPS107891  Navarretia tagetina Lowell Ahart 2005-5-28 11821 -A Butte South edge of Falager Ct., intersection of Falager Ct. and Durham Pentz Road, east of Highway 99 East, about 4 miles east of Durham 70 Comment
  SEINET3860241  Navarretia tagetina Leigh A. Johnson 2004-5-15 04 -064 Butte Eastbound from Chico on Skyway Drive, in 10 meters between large pullover area and fence, 4.2 miles west of Skyway crossroad; 5.3 miles west of Neal jct.; 0 209 Comment
  UC518029  Navarretia tagetina Lewis S. Rose 1933-5-27 33187 Butte Honcut 32 Comment
  UCD18876  Navarretia tagetina Vernal Pool Team 2001; Carol Witham and Jennifer Buck 2001-5-3 184 Butte off of Hwy 99, 2 mi. north of its intersection with Hwy 149, Book Family Farm, Book Ranch Site, pool # BOO072, UTMs: 10S0611198; 4386920. Comment
  HSC38282  Navarretia tagetina Thomas W. Nelson, Jane P. Nelson 1976-5-10 2469 Butte Beside SR 191 just N of its junction with SR 70 Comment
  UC856899  Navarretia viscidula A. A. Heller 1914-5-22 11427 Butte about 5 mi n Chico (on the Richardson Springs road) Comment
  UCD123941  Nemacladus interior M. Vincent 1968-6-10 843 Butte 2/10 mile north of Cresta Power Station. Comment
  CAS-BOT-BC7184  Nemophila alata H. E. Brown 1897-3-3 173 Butte Near Clear Creek 53 Comment
  NY337171  Nemophila fallax Mrs. C. C. Bruce 2037 Butte Comment
  CHSC40031  Nemophila heterophylla L. Constance; J. L. Morrison 1938-4-30 2177 Butte Moist NE. canyon slope, between Big and Little Chico creeks, 8 miles N. of Chico, Sierra Nevada foothills. 609 Comment
  CHSC62748  Nemophila heterophylla L. P. Janeway 1993-6-9 4374 Butte Plumas National Forest. Oroville Ranger District. Swayne Hill Compartment. Southeast of Swayne Hill, along road 11N24 1.8 mi south of the 'low water crossing' of French Creek. East-facing slope above French Creek. Partially shaded road cutbank. 621 Comment
  CHSC65264  Nemophila heterophylla H. M. Hall 1908-4-5 8025 Butte Near Oroville, in the foothills of the Sierra Nevada. 150 Comment
  UC196272  Nemophila heterophylla A. A. Heller 1914-5-8 11376 Butte plateau above Clear Creek (on the Paradise Road); above Clear Creek Comment
  CHSC88986  Nemophila menziesii Christine Hantelman 2000-2-18 6 Butte 1.5 mi east on Wookey Road. 112 Comment
  CHSC60986  Nemophila pedunculata Lowell Ahart 1993-6-20 7002 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile northwest of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC90647  Nemophila pedunculata Lowell Ahart 2005-4-2 11694 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
  CHSC90799  Nemophila pedunculata Lowell Ahart; P. Maslin, S. Green, J. Guardino, J. Dittes 2005-2-6 11554 Butte Butte Creek Ecological Reserve. About 50 yards east of Chico Canyon Road, about 1/2 mile west of Highway 32, about 8 miles northeast of Chico. 242 Comment
  CHSC49436  Nicotiana acuminata var. multiflora Vernon Oswald 1984-6-3 1250 Butte Sacramento River, ca. 0.5 mi downstream from the mouth of Stony Creek. 39 Comment
  SBBG25316  Notholithocarpus densiflorus var. densiflorus F. C. Raney 1964-9-10 Butte 10 mi NE of Feather Falls Comment
  SEINET8501843  Odontostomum hartwegii C. Witham, J. Buck 2001-5-3 182 Butte Book Family Farm, off of Hwy 99, 2 miles N of its intersection with Hwy 149, Book Ranch Site, pool # BOO072. Comment
  UC398696  Odontostomum hartwegii A. A. Heller 1926-4-28 13933 Butte 4 mi. n. Chico (on Richardson Springs rd.) Comment
  POM253051  Odontostomum hartwegii A. A. Heller 1938-5-22 15108 a Butte Near the Chico Airport Comment
  RSA7434  Odontostomum hartwegii J. H. Morrison 1932-04 s.n. Butte Durham Comment
  SEINET12265276  Odontostomum hartwegii J. H. Morris 1932-1 s.n. Butte Durham Comment
  CAS-BOT-BC71182  Ophioglossum californicum Lowell Ahart 1984-2-18 4496 Butte On the Joie Osgood Ranch, about 4 miles northeast of Honcut 85 Comment
  CHSC98644  Orcuttia tenuis Elena Alfieri 2008-6-25 Butte Sacramento Valley. Palermo. Collected in a cattle pond. 45 Comment
  CHSC26855  Oreostemma alpigenum var. andersonii M. S. Taylor; M. Hayes 1978-6-24 1667 Butte On N side of Old Humboldt Rd, across from Butte Meadows. 1371 Comment
  JEPS80620  Orobanche fasciculata M. S. Taylor 1980-5-15 2640 Butte ca. 9 mi. n.e. Chico (ca. 0.25 mi. e. of Cohasset Rd. on Cohasset Ridge); Cohasset Ridge 396 Comment
  UC600432  Orobanche fasciculata E. B. Copeland 1931-7-6 Butte Jonesville, W of Willow Creek. Comment
  SEINET10549647  Orthocarpus attenuatus Mary Susan Taylor 1975-4-26 Taylor 506 Butte Kunkle Reservoir, ca. 500 yds E of Pentz-Magalia Hwy, ca. 1 m SE of Paradise. With Orthocarpus erianthus, Centaurea solstitus, Lupinus bicolor, Typha latifolia. 610 Comment
  POM15361  Orthocarpus purpurascens E. B. Copeland 1903-4-10 3035 Butte Chico. Comment
  SEINET10454521  Osmorhiza chilensis Mary Susan Taylor 1981-5-14 Taylor 3712 Butte 3200 ft. T21N R6E ne/ne sec 5, Brush Creek quad. S side of 22N49, at jct where creek crosses the rd (next creek E of Little Ram Creek), ca. 1 mi SW of the rds jct with Four Mile Ridge Rd, ca. 0.5 mi N of Mountain House on Oroville-Quincy Hwy. 975 Comment
  CHSC89745  Osmorhiza occidentalis L. P. Janeway; Robert F. C. Naczi 2004-7-23 8181 Butte High Cascade Range. Forested slope about 0.3 km southeast of the east end of Philbrook Reservoir. Northwest-facing slope. 1707 Comment
  CHSC21007  Oxalis corniculata M. S. Taylor 1975-4-6 438 Butte In lawn, e side of 1200 block of Arcadian, Chico. 60 Comment
  JEPS95963  Oxalis corniculata Vernon H. Oswald 1999-5-6 9724 Butte Bidwell Sacramento River State Park; Sacramento River; Big Chico Creek; Chico 36 Comment
  RSA724822  Oxypolis occidentalis L. Ahart 2006-9-9 13247 Butte West side of a large meadow with bogs, about 75 yards south of the cabin, about 3/4 air mile northwest of Jonesville, about 5 air miles northeast of Butte Meadows 1561 Comment
  CAS-BOT-BC316890  Packera eurycephala var. lewisrosei Lewis Samuel Rose 1954-5-31 54085 Butte Feather River Canyon, near Pulga 396 Comment
  CAS-BOT-BC10501  Paeonia brownii A. A. Heller 1915-6-11 12046 Butte Jonesville in the Sierra Nevada 1676 Comment
  UC600480  Paeonia brownii H. F. Copeland 1920-5-22 205 Butte Jonesville Comment
  CAS-BOT-BC253704  Panicum capillare A. A. Heller 1916-9-30 12665 Butte S [5?] miles N of Oroville Comment
  JEPS120644  Panicum capillare Lowell Ahart 2013-11-13 19242 Butte Below the high water line of Lake Oroville, along the sides of Sucker Creek, about 30 yards north of the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. Comment
  CHSC112934  Parentucellia viscosa B. Castro 2012-6-21 1930 Butte Sacramento Valley. CA 3 air mi E of Hyw 99, off SE corner of Thermalio Afterbay ca 0.5 mi NE of the Afterbay outlet and ca 400 ft NW of Larkin Road 42 Comment
  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
  UCD88690  Paspalum boscianum Elizabeth Wilson 1934-8-9 s.n. Butte Biggs Rice Station. Comment
  CHSC37107  Paspalum dilatatum L. Ahart 1982-10-15 3895 Butte Along edges of North Honcut Creek, ca. 2.7 mi ne of Honcut. 50 Comment
  CHSC37660  Paspalum distichum T. B. Devine 1981-9-3 764 Butte At edge of Horseshoe Lake, Upper Bidwell Park, Chico. 106 Comment
  CHSC66464  Paspalum distichum Vernon H. Oswald; Lowell Ahart 1996-6-10 7759 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 bed of a seasonal marsh near the center of the W side of Tract 7.1, Sanctuary I. 33 Comment
  CHSC39228  Paxistima myrsinites M. S. Taylor; K. Tharp 1983-3-11 5224 Butte Big Bald Rock, ca. 3 mi s of Brush Creek, ne of Oroville. 975 Comment
  CHSC47378  Pectocarya penicillata Lowell Ahart 1989-11-12 6401 Butte On the bottom of a wash, in the borrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  UC600441  Pedicularis attollens H. F. Copeland 1930-7-24 1329 Butte Jonesville 1524 Comment
  CHSC3535  Pedicularis densiflora John Francis 1966-4-6 83 Butte 0.3 mi from intersection of Pentz-Magalia Rd. and Nelson Bar Rd., on Nelson Bar Rd. Comment
  UC478469  Pedicularis semibarbata E. B. Copeland 1931-6-21 688 Butte Jonesville 1550 Comment
  CAS-BOT-BC71198  Pellaea andromedifolia M. S. Taylor 1979-3-20 1957 Butte along north fork of Feather River, ca. 3 mi n of jct of Feather River and Hwy 70, ca. 10 mi n of Oroville 304 Comment
  SEINET10529788  Pellaea andromedifolia Mary Susan Taylor 1980-3-30 Taylor 2411 Butte Upper Bidwell Park, Chico. 244 Comment
  CHSC33896  Pellaea mucronata M. S. Taylor 1981-5-15 3733 Butte N side of Feather River Hwy 70, at Plumas NF boundary, ca. 2 mi ne of Jarbo Gap. 609 Comment
  UCD80691  Pellaea mucronata subsp. mucronata CNPS SN Foothill Team 2006-5-25 SNNR 0959 Butte Horning Ranch, private. This stand lies between 2 previous RA stands and wraps around the southern tip of projecting finger into canyon. 185 Comment
  UC382581  Pellaea mucronata var. mucronata Mrs. Carlotta C. Hall 1912-5-27 Butte canyon near Richardson's Springs Chico Comment
  UC474209  Pellaea mucronata var. mucronata H. F. Copeland March, 1926 541 Butte near Chico (Iron Canyon) Comment
  RSA780097  Penstemon breviflorus subsp. glabrisepalus C. C. Bruce 1898-06 2414 Butte [No location information provided.] Comment
  UC600439  Penstemon gracilentus H. F. Copeland June, 1931 Butte Jonesville Comment
  SEINET10547987  Penstemon gracilentus Mary Susan Taylor 1980-8-2 Taylor 3209 Butte T27N R5E center sec 32, Jonesville quad. Humboldt Peak, N tip of the county. 2155 Comment
  SEINET10548024  Penstemon laetus Mary Susan Taylor 1980-6-14 Taylor 2878 Butte T21N R5E ne sec 25. Big Bend quad. On N sid eof Zink Road, near entrance to Zink Ranch, ca. 2 mi E of Lake Madrone; Yellow Pine Forest. 762 Comment
  CHSC87976  Penstemon laetus var. leptosepalus Lowell Ahart 2004-6-22 11122 Butte On the west side of Doe Mill Road, about 1 mile southeast of the bridge across Butte Creek, about 2 1/2 miles (air) southeast of Forest Ranch, about 5 miles (air) southwest of Stirling City. 713 Comment
  CHSC9700  Penstemon neotericus Nancy Mosman 1971-7-3 54 Butte In meadow on n side of Humboldt Road ca. 0.2 mi e of Butte Meadow Ranger Station. 1371 Comment
  UC423642  Penstemon neotericus David D. Keck 1930-7-24 970 Butte 7 mi above Chaparral ((near Humbug Summit)); Sierra Nevada, above Chaparral, nr Humbug Summit 1706 Comment
  CHSC11884  Penstemon newberryi E. B. Copeland 1930-7-6 458 Butte Jonesville. 579 Comment
  UC426951  Penstemon newberryi var. newberryi E. B. Copeland 1930-7-6 458 Butte above Jonesville; above Jonesville 1900 Comment
  CHSC42829  Penstemon personatus L. P. Janeway 1987-6-27 2356 Butte Overlooking Keyser Cr; 5.4 mi N of Ramsey Bar along the Concow Rd. Mostly on NW-facing roadcut but also scattered on slope immed. above. 1554 Comment
  SEINET10548093  Penstemon personatus Mary Susan Taylor 1982-8-16 Taylor 4998 Butte T24N R4E n/nw sec 12. Pulga NW quad. Along rd and in saddle, ca. 0.5 mi n of Bald Mt, ca. 4 air mi ne of Stirling City. Mixed Coniferous Forest; 5600- 5700 ft. 1737 Comment
  CHSC44729  Penstemon rydbergii R. Banchero 1980-6-26 266 Butte Chico Meadows, 0.95 mi N of the jct of Humboldt Rd and the Skyway. 1316 Comment
  SEINET12320809  Pentagramma triangularis Unknown 1974-1 16 e Butte 7 ft S of Honey Run Road & 4.1 mi E of Honey Run Covered Bridge 305 Comment
  CHSC28409  Pentagramma triangularis subsp. semipallida M. S. Taylor 1979-9-28 2201 Butte Butte county line at Hwy 70, between boundary and Arch Rock tunnel. 487 Comment
  CHSC29791  Pentagramma triangularis subsp. semipallida M. S. Taylor; J. D. Jokerst, R. Schlising 1980-6-14 2869 Butte At Big Bald Rock, ca. 3 mi e of Lake Madrone. 997 Comment
  JEPS116128  Pentagramma triangularis subsp. triangularis Lowell Ahart 2009-4-22 15564 Butte South side of Guardians Trail, about 50 yards west of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  UC122975  Pentagramma triangularis subsp. triangularis Mrs. R. M. Austin 1879-1 Butte Cold Canyon Comment
  CDA13912  Perideridia lemmonii G. F. Hrusa, T. D. Wilfred 1997-7-3 13988 Butte Sierra Nevada; onabove Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. Comment
  CHSC40217  Perideridia lemmonii Lowell Ahart 1985-6-17 5064 Butte 120 yards south of the dirt road, Lumpkin Ridge, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 975 Comment
  SBBG120014  Perideridia lemmonii L. Ahart 2006-8-15 13176 Butte 0.75 mi (air) NW of Jonesville, about 5 mi (air) NE of Butte Meadows 1569 Comment
  CHSC33964  Perideridia parishii subsp. latifolia M. S. Taylor; L. Ahart 1981-8-16 4204 Butte Jones Meadow, ca. 3 mi s of Philbrook Reservoir, ca. 6 mi ne of Stirling City. 1828 Comment
  HSC73010  Perideridia parishii subsp. latifolia M. S. Taylor, L. Ahart 1981-8-16 4204 Butte Jones Meadow, 3 mi. S of Philbrook Reservoir, 6 mi. NE of Stirling City 1829 Comment
  CHSC37113  Persicaria hydropiper L. Ahart; M. S. Taylor 1982-10-11 3864 Butte Along edges of large duck pond, ca. 0.1 mi w of Graylodge HQ, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CHSC45466  Persicaria hydropiper Lowell Ahart 1983-9-17 4437 Butte On the sides of a deep wash, about 1/4 mile south-east of Stirling City. 1097 Comment
  CHSC37070  Persicaria hydropiperoides L. Ahart 1982-10-6 3847 Butte Peter Ahart Ranch, ca. 3 mi ne of Honcut. Along edges of North Honcut Creek. 50 Comment
  CAS-BOT-BC418861  Persicaria hydropiperoides Herbert L. Mason; Verne Grant 1946-8-14 13027 Butte Butte Sink. On Sacramento Outing Club Comment
  CHSC37072  Persicaria maculosa L. Ahart 1982-10-6 3845 Butte Along edges of North Honcut Creek, Peter Ahart Ranch, ca. 3 mi ne of Honcut. 50 Comment
  CHSC43101  Persicaria maculosa Pauleen Broyles 1987-10-26 1092 Butte The Nature Conservancy Vina Plains Preserve. Wurlitzer Parcel. Damp edges of manmade reservoir. 55 Comment
  CAS-BOT-BC419181  Persicaria maculosa Forman T. McLean 1921-10-1 37 Butte Nelson Comment
  CHSC26675  Persicaria punctata M. S. Taylor; M. Hayes 1977-8-16 1450 Butte Abundant in Clear Creek on Butte College Camputs, ca. 15 mi s of Chico. 60 Comment
  CHSC25277  Petroselinum crispum K. R. Stern 1977-4-25 Butte Comment
  CHSC33711  Phacelia corymbosa J. D. Jokerst 1981-5-21 1327 Butte Pulga Rd., ca 1/10 mi NE of its junction with Hwy 70. Comment
  CHSC40034  Phacelia corymbosa A. A. Heller 1938-5-28 15118 Butte On a steep gravelly slope about scattered shrubs on the Feather River Highway 23 miles from Oroville. Comment
  CHSC71118  Phacelia egena Jan Monelo 1989-4-11 9 Butte Ca 75 yds w of Covered Bridge on w side of Honey Run Rd, ca 7 mi e of Chico. 121 Comment
  CHSC118390  Phacelia egena Tim Kask 2015-2-18 225 Butte Antelope Creek, upstream from Fischer CG. 10T 0595755/4455054 Comment
  CHSC45936  Phacelia heterophylla subsp. virgata Lowell Ahart 1984-7-19 4722 Butte Along a logging road near the dirt road, about 1 1/2 miles southeast of Bald Mountain, 3/4 mile west of Oak Point, about 4 miles north-east of Stirling City. 1371 Comment
  SD122566  Phacelia imbricata Lowell Ahart, Peter Ahart 1984-5-28 4654 Butte On a large road cutbank along Highway 40, now called Dark Canyon Road, ca. 2.0 miles east of Old Yankede Hill, ca. 16 miles northeast of Oroville. 449 Comment
  UC1046983  Phacelia imbricata Butte just below Los Plumas road junction with the Feather River Highway, about 14 miles northeast of Oroville Comment
  RSA428016  Phacelia imbricata subsp. imbricata L. Ahart, P. Ahart 1984-5-28 4654 Butte On a large road cutbank along Highway 40, now called Dark Canyon Road, ca. two miles east of Old Yankee Hill, ca. 16 miles northeast of Oroville. 450 Comment
  UC196301  Phacelia mutabilis A. A. Heller 1914-7-23 11600 Butte edge of forest about Chico Meadows 1219 Comment
  UC909976  Phacelia mutabilis A. A. Heller 1917-7-26 12831 Butte Butte Meadows 1402 Comment
  CHSC93963  Phacelia purpusii R. D. Fischer 2004-6-20 760 Butte Sierra Nevada Mountains, north-east corner of Butte County and ca. 2 miles west of Butte Meadows on Humboldt Road. Plants collected roadside off eroded, gravelly volcanic soil. 1371 Comment
  UCD88794  Phalaris caroliniana P. B. Kennedy 1924-5-1 s.n. Butte Gridley. Comment
  SEINET10854954  Phalaris paradoxa Lowell Ahart 1999-5-21 Ahart 8068 Butte T17N, R2E, southeast 1/4 Section 7. 50 yards north of Evans Reimer Road, about 7/8 mile east of Pennington Road, about 5 miles (air) southwest of Gridley. 21 Comment
  SEINET10949139  Phalaris paradoxa Lewis S. Rose 1937-6-11 Rose 37381 Butte 7 mi W of Honcut. Open fields 23 Comment
  JEPS123884  Philadelphus lewisii Lowell Ahart 2015-5-5 20144 Butte Oroville Wildlife Area, about one mile south of the Headquarters, about one mile south of Thermalito. Comment
  UC1609449  Philadelphus lewisii Lowell Ahart 1993-7-6 7060 Butte about 1 air mi nw Lost Creek Reservoir Dam; Mooreville Ridge, Jackass Flat 1158 Comment
  RSA0057767  Philadelphus lewisii M. M. Boney 1897-1 s.n. Butte Unspecified. Comment
  CAS-BOT-BC250863  Phleum pratense John Thomas Howell 1973-7-9 49694 Butte NE of Pulga Bridge, Feather River highway 417 Comment
  JEPS114181  Phlox speciosa subsp. occidentalis L. P. Janeway 2007-5-6 8969 Butte Northern High Sierra Nevada. Ridge top along a side road north off the road from Sawmill Peak to Flea Valley, 1.8 air km northeast of Sawmill Peak. Comment
  HSC38024  Phoradendron bolleanum Thomas W. Nelson, Jane Nelson 1976-5-10 2488 Butte Just E of Magalia Comment
  JEPS82727  Phoradendron densum Wayne Roderick 1983-7-23 Butte near old R.R. station Magalia 762 Comment
  CAS-BOT-BC135100  Phoradendron juniperinum M. S. Taylor 1981-4-8 3509 Butte N side of spur rd, ca. 1/3 mi W of its jct with Ponderosa way, ca. 5 mi N of its jct with Hwy 70 at Jarbo Gap, ca. 20 air mi N of Oroville Comment
  CAS-BOT-BC135130  Phoradendron juniperinum Clarence R. Quick 1962-8-19 62 -82 Butte Coyote Gap-Four Trees Road. Plumas National Forest 1463 Comment
  SEINET12230295  Phoradendron juniperinum M. S. Taylor 1976-1 997 Butte abundant in Yellow Pine Forest, 2 mi N of Cohasset, 10 ft E of Cohasset Hwy 762 Comment
  CHSC113291  Phoradendron serotinum subsp. macrophyllum Lowell Ahart 2014-5-5 19321 Butte About 40 feet north of the northeast corner of Washington Street and Spruce Street, in Gridley. 23 Comment
  JEPS120060  Photinia Lowell Ahart 2012-4-9 17824 Butte On the north side of South Rim Trail, about 30 yards east of Big Chico Creek, south part of Upper Bidwell Park, about 3/4 mile east of the power lines, about 1 3/4 miles (air) northeast of Chico. Comment
  CDA5828  Physalis lancifolia Margaret Bellue 1947-8-23 Butte Afton Road near Biggs. 0 Comment
  UC1143157  Physalis lancifolia H. S. Yates 1936-8-14 6127 Butte 3 mi nw Nelson; Chico Quad. 30 Comment
  RSA325148  Physocarpus capitatus M. S. Taylor, L. Hanson 1981-5-17 3805 Butte Along creek, Phillips property, 685 Wagstaff, Paradise. 579 Comment
  CHSC109764  Phytolacca americana var. americana Lowell Ahart 2012-10-28 18524 Butte About 50 yards east of Table 5, west of Cedar Grove, Lower Bidwell Park, Chico. 68 Comment
  CAS-BOT-BC76941  Pilularia americana Lowell Ahart 1973-4-15 s.n. Butte Peter Ahart Ranch, Honcut 45 Comment
  JEPS117720  Pilularia americana Lowell Ahart 2010-6-9 16779 Butte About 30 yards south of the poor dirt road, about 70 yards west of the fence, about 1/4 mile east of Cherokee Road, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville 392 Comment
  CAS-BOT-BC76939  Pilularia americana Lowell Ahart 1979-5-25 s.n. Butte 2 miles south of Palermo. Pond on west side of the Western Pacific RR 35 Comment
  SEINET10938354  Pilularia americana Lowell Ahart 1984-5-12 Ahart 4603 Butte T17N R4E. Peter Ahart Ranch, ca. 2.5 mi NE of Honcut, ca. 12 mi S of Oroville. Valley Grassland; 50 m. 50 Comment
  CAS-BOT-BC78935  Pinus monticola A. A. Heller 1915-6-26 12033 Butte Summit of the Sierra Nevada above Jonesville 2133 Comment
  RSA323805  Pinus ponderosa K. R. Fechko 1982-4-11 2 Butte North east part of the county, approx. 1.8 miles south of Tehama county line on west side of Cohasset Road. 976 Comment
  CHSC54350  Piperia elongata Lowell Ahart 1991-5-31 6657 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
  JEPS117404  Piperia elongata Lowell Ahart 2010-5-14 16673 Butte On the south side of Guardian Trail, about 1/4 mile west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 301 Comment
  CHSC49680  Piperia transversa Vernon Oswald 1983-7-26 914 Butte Calif. Hwy 32, 6.2 mi n-e of Forest Ranch. 1036 Comment
  CHSC61359  Piperia transversa Lowell Ahart 1993-7-22 7070 Butte On the east side of the dirt road, about 1/4 mile north-west of Camp 18, about 5 (air) miles north-east of Feather Falls. 1219 Comment
  POM365989  Piptatherum miliaceum L. Ahart, Peter Ahart 1984-6-10 4690 Butte Along edge of a new subdivision road 1 mile SE of Hurleton, 1/12 mile E of Oak Grove Cemetery, 10 miles E of Oroville. 500 Comment
  CHSC27196  Pistacia chinensis P. Moyer 1971-10-1 19 Butte CSUC Campus. S side of Bidwell Mansion Along So-wil-len-no Ave. 60 Comment
  JEPS120071  Pistacia chinensis Lowell Ahart, Linnea Hanson, Kaline Le Coq, Josephine Guardino 2012-4-27 17903 Butte On the north side of Big Chico Creek, south of the path, near the sign, southwest of the intersection of Vallombrosa Avenue and Manzanita Avenue, Lower Bidwell Park, Chico. Comment
  SEINET10966245  Pityrogramma triangularis Mary Susan Taylor 1981-3-31 Taylor 3464 Butte T22N R4E north border sec 2/1. Pulga SW quad. S side of Concow Rd, ca. 0.5 mi s of its jct with Ponderosa Way, ca. 20 air mi n of Oroville; 2800 ft. 853 Comment
  CHSC31258  Plagiobothrys bracteatus R. A. Schlising 1980-6-1 3610 Butte S of Paradise, at Kunkle Reservoir, off Pentz Hwy. 440 Comment
  UC78216  Plagiobothrys bracteatus Mrs. R. M. Austin Apr. 1896 Butte Comment
  SEINET12275923  Plagiobothrys fulvus Unknown 3 s.n. Butte no further locality Comment
  POM223244  Plagiobothrys greenei H. F. Copeland 1923-4-12 604 Butte near Biggs Comment
  SEINET12249492  Plagiobothrys greenei Unknown 1977-1 1297 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC228251  Plagiobothrys hispidulus A. A. Heller 1915-6-11 11969 Butte Chico Meadows in the Sierra Nevada 1219 Comment
  CHSC29271  Plagiobothrys hispidulus R. A. Schlising 1980-6-2 3627 Butte Northern Butte Co., 0.1 mi s of jct Humboldt Road and Humbug/Skyway at Butte Meadows. Comment
  RSA638256  Plagiobothrys nothofulvus Michael A. Vincent, Ethan H. Freid 1998-4-6 8111 Butte Table Mountain Comment
  CHSC39029  Plagiobothrys scriptus Lowell Ahart 1983-4-10 3918 Butte Central part of county, north-east of highway 99 and Pentz Road about 1 mile. 65 Comment
  CHSC35068  Plagiobothrys shastensis R. A. Schlising 1981-4-6 4018 Butte W of Oroville and SW of Thermalito, at S border of Oroville Municipal Airport; off Larkin Road, 1.2 mi S of jct with Hwy 162. Comment
  CHSC26798  Plagiobothrys stipitatus M. S. Taylor; H. Hayes 1978-4-14 1566 Butte In 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
  POM225866  Plagiobothrys stipitatus J. H. Morrison 1932-4-3 s.n. Butte Durham. Comment
  CHSC35052  Plagiobothrys stipitatus var. micranthus R. Schlising; R. Banchero 1981-5-19 4049 Butte NW of Oroville along Cottonwood Road, 0.5 mile E of jct with Hwy 99. In roadside ditch. 41 Comment
  CHSC52005  Plagiobothrys stipitatus var. stipitatus B. Castro 1982-4-21 19 a Butte On and near banks of Singer Ck, ca 1 mi w of Hwy 99 off Haille road, ca 12 mi n of Chico. Among vernal pools. 60 Comment
  CHSC54377  Plagiobothrys stipitatus var. stipitatus M. Bailey 1991-4-19 564 Butte Butte College campus. On margins of drainages, w of Well #3 ca 500 ft e of Williams Road and 1/4 mi n of Pentz Road. 85 Comment
  CHSC29274  Plagiobothrys tenellus R. A. Schlising 1980-4-19 3567 Butte North of village of Feather Falls, along trail to Feather Falls (on Fall River) from ne. 792 Comment
  CHSC33687  Plagiobothrys tenellus L. Ahart 1981-3-29 2710 Butte Along edge of Ponderosa Way near the Ponderosa Dam, near Forbestown. 350 Comment
  JEPS115845  Plagiobothrys tenellus Lowell Ahart 2009-4-22 15571 Butte West side of Guardians Trail, about 100 yards north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  CHSC40445  Planodes virginica Lowell Ahart 1985-3-14 4846 Butte Around vernal pools, in one of the pasture fields, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 50 Comment
  JEPS122274  Planodes virginica Lowell Ahart 2014-4-9 19325 Butte On the north side of Colusa Highway, about 4/10 mile east of the intersection of Pennington Road and Colusa Highway, about 5 1/2 miles west of Gridley. Comment
  CDA34708  Plantago coronopus L. Ahart 2010-5-22 16713 Butte About 140 yards east of the fence, about 240 yards east of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. Comment
  HSC92460  Plantago coronopus L. Ahart 1981-5-16 2795 Butte Gray Lodge Waterfowl Management Area, 11 mi. SW of Gridley 30 Comment
  CHSC47461  Plantago erecta Lowell Ahart 1974-4-7 348 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 1/2 miles east of Honcut, about 12 miles south of Oroville. 42 Comment
  RSA754583  Plantago erecta L. Ahart 2009-4-22 15584 Butte W side of Guardians Trail, about 100 yards N of Pine Trail, Upper Bidwell Park, W of the intersection of Highway 32 and Ten Mile House Road, about 10 miles NE of Chico. 382 Comment
  UCD18734  Plantago erecta Vernal Pool Team 2001; Carol Witham and Jennifer Buck 2001-4-10 27 Butte one mi. east of Rock River Mine and parking area, off Cherokee Rd., North Table Mountain, Oroville site. Comment
  CHSC55392  Plantago hookeriana Dan Morgan 1991-4-21 17 Butte Indian Springs Road, 0.3 mi west of Neal Road, Paradise. 243 Comment
  UCD124510  Plantago major L. E. Hazeltine 1916-6-5 s.n. Butte Chico. Comment
  CHSC49682  Platanthera leucostachys Vernon Oswald 1983-6-22 735 Butte Soda Spring Campground near Calif. Hwy 32, 17.8 mi n-e of Forest Ranch. Beside Chico Creek. 1112 Comment
  CHSC50438  Platanthera sparsiflora Vernon Oswald; Lowell Ahart 1990-6-20 4303 Butte Headwaters of Philbrook Creek, ca. 0.25 mi west of the Butte-Plumas county line, between Philbrook Reservoir and Carr Mine. 1889 Comment
  CHSC3016  Platycladus orientalis Carl Pejsa 1958-4-19 115 Butte Bidwell Park Forestry Station. Comment
  SEINET10464978  Plectritis ciliosa Mary Susan Taylor 1974-3-19 Taylor 85 Butte Along Butte Creek at Honey Run Covered Bridge, ca. 10 mi E of Chico. Comment
  UC890146  Plectritis macrocera A. A. Heller 1938-4-14 15026 Butte summit of Table Mountain Table Mountain 304 Comment
  CHSC30086  Pleuricospora fimbriolata M. S. Taylor 1980-8-2 3210 Butte Humboldt Summit, ca. 100 ft w of Old Humboldt Rd. 2011 Comment
  HSC66331  Pleuricospora fimbriolata M. S. Taylor 1980-8-2 3210 Butte Humboldt Summit, 100ft. W of Old Humboldt Rd. 2012 Comment
  CAS-BOT-BC244401  Poa annua Lowell Ahart 1983-3-28 3908 Butte About 0.5 mile SW of Forbestown Res., along the road, about 4 miles NE of Forbestown 450 Comment
  CHSC47627  Poa annua Lowell Ahart 1974-3-12 317 Butte In garden, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC40294  Poa bolanderi Lowell Ahart 1985-7-16 5147 Butte Near Willow Creek, about 4 miles east of Cherry Hill, about 7 miles north-east of Butte Meadows. 1828 Comment
  CDA34180  Poa bulbosa L. Ahart 2009-4-22 15598 Butte South side of Guardian s Trail, about 50 yards west of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road. Approximately, 10 miles northeast of Chico. Comment
  CHSC38845  Poa compressa Vernon Oswald 1983-6-24 762 Butte Upper Bidwell Park, Chico, in the bed of Lindo Channel near the diversion weir. 79 Comment
  JEPS116023  Poa compressa Lowell Ahart 2009-7-9 16022 Butte On the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 1/4 mile west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 203 Comment
  UC4609251  Poa compressa Lowell Ahart 1993-7-23 7094 Butte ca 6 air mi ne Feather Falls (w side of Fall River, ca 100 yds w of bridge across Fall River) 1036 Comment
  SEINET10921189  Poa compressa Lowell Ahart 1988-6-29 Ahart 6090 Butte East of Galen Ridge Road, about 1/2 mile east of the Oroville Quincy Highway, north of Lake Madrone, Butte County, California. Common. Yellow Pine Forest. 622 Comment
  CHSC113420  Poa palustris Lowell Ahart 2014-7-10 19609 Butte About 100 yards southwest of Memorial Spring and the Skyway, about a mile southwest of the intersection of Humbug Road and Philbrook Road, about 2 1/2 miles (air) northwest of Philbrook Reservoir. 1561 Comment
  JEPS116022  Poa palustris Lowell Ahart 2009-6-3 15815 Butte About 100 yards west of the table at the hold homestead and southwest of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 239 Comment
  LA12615  Poa pringlei E. B. Copeland; 1931-6-22 606 Butte Jonesville, at The Summit 609 Comment
  CHSC110452  Poa sierrae L. P. Janeway 2013-5-16 11101 Butte Northern High Sierra Nevada. Plumas National Forest; mid-slope North Fork Feather River canyon +/- overlooking Arch Rock and the Hwy 70 rest area, along Camp Creek Road 5.4 road km northeast of Dixie Road. 702 Comment
  RSA0022168  Pogogyne zizyphoroides A. A. Heller 1938-4-22 15043 Butte On U. S. Highway 99E, near the Cana road. Comment
  CHSC14112  Polanisia dodecandra subsp. trachysperma F. T. Griggs 1974-8-8 143 Butte Growing on top of a sandbar in the Sacramento River, between Hamilton City Bridge and the mouth of Big Chico Creek. Comment
  CHSC75992  Polanisia dodecandra subsp. trachysperma Lowell Ahart; Vernon H. Oswald 1999-8-13 8157 Butte Large disturbed 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. 32 Comment
  CHSC25467  Polemonium pulcherrimum Hayes; Warner 1977-9-11 87 Butte Near top of Humboldt Peak, ca. 2 km e of Humboldt Summit on Butte-Tehama County line. 2133 Comment
  CHSC58938  Polygala cornuta Lowell Ahart 1992-8-2 6913 Butte East of the intersection, about 1/2 mile north of Flea Valley, about 4 1/2 (air) miles north-east of Concow Reservoir. 1158 Comment
  SBBG121598  Polygala cornuta var. cornuta L. Ahart 2007-5-29 13921 Butte ca. 1/8 mi S of Bald Rock Dome on both sides of the Dome Trail, trail leads to the Middle Fork of the Feather River 685 Comment
  JEPS115577  Polygonum arenastrum Lowell Ahart 2009-6-12 15846 Butte At Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove, Lower Bidwell Park, Chico 67 Comment
  CHSC92508  Polygonum aviculare Lowell Ahart 2005-12-11 12521 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
  CDA43082  Polygonum aviculare subsp. depressum L. P. Janeway 2011-10-2 10780 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. Comment
  CAS-BOT-BC414191  Polygonum aviculare subsp. depressum Lowell Ahart 1976-9-21 s.n. Butte Along the edge of the road 1/8 mile east of Golden Trout Crossing, a bridge across South Fork Feather Riv; about 3 miles west of Sly Creek Reservoir Comment
  CAS-BOT-BC109139  Polygonum bidwelliae L. P. Janeway; B. Castro 1992-5-16 4186 Butte Unnamed canyon on southeast side of Neal Road opposite the entrance to the Butte County Land Fill. 68 Comment
  CHSC40067  Polygonum bidwelliae A. A. Heller 1927-5-18 14391 Butte Thin soil on volcanic rocks along the Neale grade between Chico and Paradise. Comment
  LA207131  Polygonum bidwelliae A. A. Heller; 1927-5-18 14391 Butte volcanic outcrops along Neale grade on road from Chico to Paradise Comment
  SEINET3405100 Image available Polygonum bidwelliae A. A. Heller 1941-5-25 16149 Butte Just back of the Rifle Range, 5 miles E of Chico, opposite Golf Links Comment
  UC398908  Polygonum bistortoides E. B. Copeland 1929-7-20 357 Butte Jonesville 1550 Comment
  CAS-BOT-BC414371  Polygonum californicum A. A. Heller 1914-9-4 11763 Butte Hills 8 miles north of Oroville Comment
  JEPS94929  Polygonum californicum Lowell Ahart 1996-11-2 7707 Butte about 12 mi s of Oroville (Peter Ahart Ranch, about 1 1/2 mi n and 1 mi e of Honcut); Peter Ahart Ranch 36 Comment
  UC466038  Polygonum californicum Mrs. R. M. Austin Apr. 1896 174 Butte plains Comment
  CAS-BOT-BC414418  Polygonum douglasii A. A. Heller 1914-7-23 11603 Butte About Chico Meadows 1219 Comment
  CHSC58944  Polygonum douglasii subsp. douglasii Lowell Ahart 1992-7-29 6873 Butte About 1 mile northeast of the Carr Mine, about 3/4 mile northwest of Lotts Lake. 1798 Comment
  SEINET10479466  Polygonum hydropiper Lowell Ahart 1983-9-17 Ahart 4437 Butte T24N R4E section 34. Ca. 1/4 mi se of Stirling City. Yellow Pine Forest; 1100 m. 1100 Comment
  CDA38789  Polygonum lapathifolium L. Ahart 2011-10-29 17725 Butte On the south side of Biggs Princeton Road, about 500 yards west of Riceton Highway, about 1 mile northwest of Biggs. Comment
  JEPS96004  Polygonum lapathifolium Vernon H. Oswald and Lowell Ahart 1996-5-27 7665 Butte U.S. Fish and Wildlife Service Parcel between 7 Mile Lane and Sacramento River (seasonal marsh on s side of Tract 1.1, Sanctuary II); Sacramento River National Wildlife Refuge, Llano Seco Unit 33 Comment
  CAS-BOT-BC414714  Polygonum minimum E. B. Copeland 1931-7-18 631 Butte Jonesville 1500 Comment
  JEPS121990  Polygonum minimum Lowell Ahart 2014-7-13 19654 Butte About 100 yards south of Philbrook Road, from the large meadow go west to the snow lake, go on about 100 yards to the open logged area, about 1 mile (air) west of Philbrook Reservoir. Comment
  CHSC94265  Polygonum polygaloides subsp. kelloggii Lowell Ahart 2006-7-16 13006 Butte On the west side of the poor dirt road, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1524 Comment
  POM219441  Polygonum spergulariiforme H. F. Copeland 1928-8-14 418 Butte Top of fire-swept ridge between Jones Creek and Scotch John Creek, Neighborhood of Jonesville. 1829 Comment
  SD1351  Polygonum spergulariiforme E. B. Copeland 1931-7-3 632 Butte Jonesville, Colby Canyon 1550 Comment
  POM22456  Polypodium californicum E. B. Copeland 1902-12-29 2749 Butte Chico Canyon Comment
  CHSC31236  Polypodium calirhiza M. S. Taylor 1979-3-20 1950 Butte Along old road on n side of Hwy 70 following Feather River which begins at s side of bridge over n fork of Feather River, ca. 10 mi n of Oroville. 304 Comment
  JEPS107782  Polypogon interruptus Lowell Ahart 2005-5-2 11779 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
  UCD51660  Polypogon interruptus R. N. Raynor 1940-4-19 s.n. Butte Gridley. Comment
  CAS-BOT-BC233207  Polypogon maritimus A. A. Heller 1914-5-13 11398 Butte Near Butte Creek between Durham and Nelson Comment
  CHSC39324  Polypogon maritimus Lowell Ahart 1983-6-26 4158 Butte Along Ponderosa Way, about 2 1/2 miles east of where Ponderosa Way crosses the East Fork of Canyon Creek, about 15 1/2 miles north-east of Oroville. Note: the sign gives Big Ridge Road instead of Ponderosa Way. 600 Comment
  CHSC2178  Polypogon monspeliensis H. Silberman; D. Isaac 1949-5-17 Butte Drainage of Golf course reservoir, Chico. 91 Comment
  CHSC47635  Polypogon monspeliensis Lowell Ahart 1966-5-7 14 Butte In swales, Peter Ahart Ranch, about 1 1/2 miles north and 1 1/4 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  SEINET10530115  Polystichum imbricans Mary Susan Taylor, L. Hanson 1981-4-2 Taylor 3470 Butte T20N R7E ne sec 32; Clipper Mills quad. South side of Forbestown Reservoir, in serpentine cliff, south side of Rd 20N29, ca. 3 air mi north of Woodleaf. l800 ft. 549 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
  JEPS124287  Polystichum imbricans subsp. curtum Lowell Ahart 2015-10-23 20582 Butte About 400 yards southwest of the Forbestown Reservoir Dam, about 4 miles (air) northeast of Forbestown. 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
  CHSC78231  Polystichum imbricans subsp. imbricans Lowell Ahart 2000-6-27 8528 Butte Along the wash and north of the trail to Big Bald Rock, about 3 miles (air) east of madrone Lake, about 12 miles (air) northeast of Oroville. 975 Comment
  CHSC84396  Polystichum imbricans subsp. imbricans Lowell Ahart 2003-7-30 10459 Butte Along a small stream, on the north side of Little Bald Rock, on the south side of Bean Creek road, about 2 miles (air) southeast of Brush Creek. 1000 Comment
  CAS-BOT-BC102692  Populus tremuloides Lowell Ahart 1986-8-15 5384 Butte south of the dirt road, about 1/2 miles south-west of Bald Mountain, about 4 1/2 miles north-east of Stirling City 1615 Comment
  UC600407  Populus tremuloides H. F. Copeland 1930-7-26 Butte Jonesville Comment
  CHSC38888  Potamogeton crispus Vernon Oswald 1983-6-7 650 Butte Upper Bidwell Park, Chico, ca. 0.1 mi e of the end of the pavement on Upper Park Rd. Along the edge of Chico Creek. 91 Comment
  SEINET10501686  Potamogeton crispus Mary Susan Taylor 1979-10-2 Taylor 2216 Butte Sacramento River Chico Landing and park, off River Road near the washout, ca. 5 mi W of Chico; Riparian Woodland. 30 Comment
  CHSC65474  Potamogeton filiformis Vernon Oswald 1987-5-25 2927 Butte Butte Creek Reserve on the n side of Butte Creek ne of the Skyway. In a pond along a channel. 79 Comment
  UCD169275  Potamogeton foliosus subsp. foliosus Lowell Ahart 2013-7-6 18823 Butte Peter Ahart Ranch, about 1 3/4 miles north and 1 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville. 37 Comment
  SEINET3837458  Potamogeton heterophyllus Unknown 1930-7-28 406 Butte Above Jonesville 1700 Comment
  UCD138255  Potamogeton nodosus H. L. Mason; Verne Grant 1945-7-10 12640 Butte Stanford Slough, Butte Sink, southwest corner of county. Comment
  CAS-BOT-BC454086  Potamogeton pusillus subsp. tenuissimus E. B. Copeland 1931-7-20 604 Butte Jonesville 1650 Comment
  SEINET10483112  Potentilla glandulosa subsp. glandulosa Mary Susan Taylor 1982-5-2 Taylor 4393 Butte T23N R5E ne/ne sec 6. Pulga Sw quad. Pulga serpentine outcrops on both sides of bridge across Hwy 70 at Pulga, ca. 20 mi ne of Oroville. 1600 ft. 488 Comment
  SEINET10483125  Potentilla glandulosa subsp. nevadensis Mary Susan Taylor 1978-7-21 Taylor 1830 Butte On N side of Oroville-Quincy Hwy, in open meadow, ca. 1 mi S of Butte-Plumas County line; Yellow Pine Forest. 1341 Comment
  CAS-BOT-BC158499  Potentilla millefolia Vesta Holt 1932-5-1 s.n. Butte Mountains near Chico Comment
  CHSC37530  Proboscidea lutea M. S. Taylor; L. Ahart 1982-10-11 5158 Butte Graylodge Wildlife Refuge, just se of HQ quad, 12 mi sw of Gridley. 19 Comment
  CHSC52063  Prunella vulgaris var. lanceolata B. Castro; P. Broyles, R. A. Schlising, L. P. Janeway 1987-7-19 148 Butte 0.95 mi into Coon Hollow below Campground, by edge of Coon Creek and on edge of adjacent meadow. 1664 Comment
  CHSC32669  Pseudognaphalium luteoalbum M. S. Taylor 1981-3-18 3425 Butte Ca. 100 ft s of Ponderosa Way bridge crossing West Branch Feather River, ca. 1 mi ne of Magalia. Near large serpentine outcrop. 487 Comment
  CHSC38351  Pseudognaphalium stramineum Vernon Oswald 1983-5-27 560 Butte Upper Bidwell Park, Chico, 200 ft n of Upper Park Rd. at Diversion Dam. 121 Comment
  JEPS88522  Pseudognaphalium stramineum Lowell Ahart 1996-6-25 7685 Butte about 1 1/4 mi n and 1/2 mi e Honcut (about 12 mi s of Oroville); Peter Ahart Ranch 36 Comment
  CAS-BOT-BC361915  Psilocarphus tenellus Lowell Ahart 1983-6-12 4042 Butte About 1 mile south of Crystal Hill, near Oregon Gulch, near Lake Oroville, about 7 miles south-west of Feather Falls 425 Comment
  CAS-BOT-BC72553  Pteridium aquilinum Javier Penalosa 1962-6-18 2443 Butte Near confluence of French and Peavine Crks. 609 Comment
  CAS-BOT-BC72550  Pteridium aquilinum T. P. Spira 1974-4-28 7 Butte along Contolene Rd, ca. 2 mi e of Paradise 609 Comment
  CHSC2418  Pterospora andromedea R. Carter 1965-6-21 258 Butte Found along E side of Oroville-Quincy Rd. 1.05 mi. S of Buckeye Water Hole, growing ca. 15' from road. 1219 Comment
  CHSC27182  Pyracantha crenulata M. MacArthur 1968-6-12 151 Butte NW side of LS bld. at the SW corner, Chico State College campus. 60 Comment
  CHSC94168  Pyrola dentata Lowell Ahart 2006-6-24 12855 Butte On the west side of the dirt road (Ponderosa Way), on Cohasset Ridge, about 3 1/2 miles (air) northeast of Cohasset. 1130 Comment
  JEPS108897  Pyrola dentata Lowell Ahart 2006-7-11 12943 Butte About 100 yards south of Humboldt Road, about 1 3/8 miles (air) southwest of Butte Meadows 1400 Comment
  UC709717 Image available Pyrola dentata var. apophylla H. F. Copeland 1935-7-28 Butte woods by Mickey's cabin Jonesville; Jonesville, Butte Co. 1550 Comment
  SBBG28971  Pyrola picta E. B. Copeland 1931-7-15 669 Butte Jonesville 1600 Comment
  UC392203  Pyrola picta E. B. Copeland Jul 1929 Butte Jonesville 1600 Comment
  CAS-BOT-BC466012  Pyrola picta E. B. Copeland 1920-8-2 195 Butte Jonesville 1219 Comment
  HSC104019  Quercus X morehus L. Ahart 2012-3-23 17799 Butte About 5 air mi. NE of Chico, ~ 50 yds. W of Hwy. 32; on the south side of the Old Humboldt Road cut, north end of the Disc Golf Area 395 Comment
  CAS-BOT-BC62688  Quercus chrysolepis Ella Dales Cantelow 1939-5-19 2436 Butte 17 mi. e of Oroville on old road to Quincy nr. Berry Creek Comment
  CHSC32645  Quercus chrysolepis M. S. Taylor 1981-3-18 3421 Butte In shady ravine, n side of Pulga Rd, ca. 1/2 mi e of its jct with Hwy 70 at Pulga Bridge. 487 Comment
  UC176364  Quercus douglasii A. A. Heller 1913-3-9 10688 Butte 2 mi n Oroville Comment
  CAS-BOT-BC86114  Quercus dumosa A. A. Heller 1916-9-8 12650 Butte Ten mile house E of Chico Comment
  UCD45944  Quercus durata D. Sanchez-Mata; P. Rodriguez-Rojo 1997-8-16 s.n. Butte Magalia near Magalia Reservoir. 680 Comment
  CAS-BOT-BC61581  Quercus lobata Alice Eastwood 1913-6-18 s.n. Butte Hooker Oak, Bidwell Park, Chico Comment
  UC848109  Quercus lobata A. A. Heller 1915-4-1 11791 Butte near Durham; Sacramento Valley 68 Comment
  UCD47410  Quercus vacciniifolia J. I. Mallory 1970-8-20 378 Butte 3/4 mile north of Ramsey Bar, ca. 10 miles northeast of Stirling City, Butte County, California. 1402 Comment
  CHSC108750  Quercus wislizeni B. Castro 2002-6-14 1376 Butte Northern Sierra Nevada Foothills. Near Spring on E side of Dark Canyon Road ~0.8 mi NE of boatramp into arm of Lake Oroville. By side of road under transmission lines. 359 Comment
  UCR219105  Quercus wislizeni var. wislizeni George K. Helmkamp, E. A. Helmkamp 2009-9-5 15597 Butte Sierra Nevada Mountains Foothills, Oro Dam Blvd. c. 2 mi. NE of Oroville and about one mile SW of the dam 88 Comment
  CAS-BOT-BC186693  Ranunculus John Thomas Howell 1976-4-2 51548 Butte About 2 miles southeast of Chico 60 Comment
  CHSC52818  Ranunculus alismifolius var. hartwegii Kirsten Tarp 1983-7-31 317 Butte S of Butte Creek House ca. 32 air miles ne of Chico. In meadow. 1828 Comment
  CAS-BOT-BC378986  Ranunculus arvensis Lowell Ahart 1980-5-10 2234 Butte Honcut, Peter Ahart Ranch 50 Comment
  HSC40652  Ranunculus arvensis J. P. Smith 1974-4-20 7344 Butte 1.0 mi. E of Hwy. 99 61 Comment
  CHSC117430  Ranunculus bonariensis var. trisepalus Lowell Ahart 2016-5-30 20885 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 1/8 miles east of Honcut, about 12 miles (air) southeast of Oroville. 31 Comment
  POM99305  Ranunculus hystriculus C. C. Bruce 1897-02 1891 Butte Little Chico. Comment
  CHSC10720  Ranunculus muricatus Lowell Ahart 1966-5-7 Butte Peter Ahart Ranch, Honcut. 45 Comment
  JEPS43466  Ranunculus occidentalis Joan O. Danielson 1966-4-6 6 Butte Cherokee Rd. 1 mi. s. on way to Table Mt. 609 Comment
  UC204949  Ranunculus occidentalis A. A. Heller 1914-6-22 11498 Butte Chico Meadows Sierra Nevada 1219 Comment
  CHSC31207  Ranunculus occidentalis var. ultramontanus M. S. Taylor 1978-7-18 1723 Butte On n side of Butte Creek, ca. 1/8 mi w of Road Island Junction, at jct of Butte Creek and Old Humboldt Rd, ca. 1 mi w of Cherry Hill Campground. 1524 Comment
  CHSC41519  Ranunculus occidentalis var. ultramontanus Kirsten Tarp 1983-8-6 341 Butte E of Butte Meadows, near creek. 1341 Comment
  POM219014  Ranunculus occidentalis var. ultramontanus E. B. Copeland 1930-6-26 642 Butte Jonesville. 1550 Comment
  SEINET12080672  Ranunculus pusillus Unknown 1974-1 444 Butte Peter Ahart Ranch, about 2 mi N and 1/2 mi E of Honcut, about 12 mi S of Oroville 37 Comment
  CHSC54389  Raphanus raphanistrum M. Bailey 1991-3-8 649 Butte North side of Butte Campus Drive, across from the Fire Training facility, Butte College Campus. Roadside. 76 Comment
  CAS-BOT-BC74263  Raphanus sativus A. A. Heller 1914-3-16 11203 Butte Low hills 8 miles north of Oroville. Comment
  UCD115181  Raphanus sativus A. A. Heller 1914-3-16 11203 Butte 8 miles north of Oroville. Comment
  SEINET10493567  Rhamnus Mary Susan Taylor, Vernon H. Oswald 1985-5-30 Taylor 5513 Butte Trees Road between Hwy 70 and Coyote Gap, ca. 25 air mi NE of Oroville. Yellow Pine Forest. Comment
  SEINET13946281 Image available Rhamnus californica A. A. Heller 1915-1 11869 Butte Chico-Centerville road 3 miles from Chico Comment
  CDA35703  Rhamnus californica subsp. californica L. Ahart 2002-6-2 9679 Butte South of the intersection of Black Bart Road and Forbestown Road, about 3 miles (air) southwest of Forbestown. Comment
  SEINET10493587  Rhamnus californica subsp. tomentella Mary Susan Taylor 1981-4-8 Taylor 3505 Butte T22N R4E north center border sec 12, Pulga SW quad. Serpentine ridge n of logging landing site just w of power lines, 1/2 mi w of Ponderosa Way/Rim Rd, ca. 5 mi n of Jarbo Gap on Hwy 70; n of Oroville. 2900 ft. 884 Comment
  CHSC30898  Rhamnus ilicifolia M. S. Taylor 1979-3-19 1931 Butte In vicinity of Pulga Bridge over Feather River on Hwy 70, ca. 25 mi ne of Oroville. 487 Comment
  UC204566  Rhamnus rubra A. A. Heller 1914-5-17 11404 Butte between 14 Mile House and Forest Ranch; Sierra Nevada 731 Comment
  RSA4444  Rhamnus rubra subsp. obtusissima E. B. Copeland 1931-7-28 657 Butte Jonesville. 1650 Comment
  RSA301134  Rhamnus tomentella subsp. tomentella D. C. Michener 1982-7-28 4137 Butte Foothill woodland on volcanic soils on both sides of 32, 8.3 miles NE of jct with 99 near Chico. Comment
  CHSC27208  Rhaphiolepis rubra P. Moyer 1972-4-4 155 Butte CSUC Campus. NE corner of library. 60 Comment
  CHSC23706  Rhododendron occidentale M. S. Taylor 1976-5-5 1101 Butte On e side of Bald Rock Rd, ca. 4 mi s of Big Bald Rock, ca. 13 mi ne of Oroville. 914 Comment
  JEPS117275  Rhus trilobata Lowell Ahart 2010-5-14 16674 Butte On the south side of the Guardian Trail, about 1/4 mile west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 301 Comment
  CHSC96970  Rhynchospora capitellata Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-10 14278 Butte Northwest part of a large open area, about 250 yards east of Bean Creek Road, northeast of Little Bald Road, about 16 miles (air) northeast of Oroville. 1024 Comment
  CHSC11907  Ribes cereum E. B. Copeland 1931-6-11 645 Butte Jonesville. Kirby's Meadow, in the open. 1800 Comment
  CHSC44939  Ribes roezlii Richard Steward 1988-4-25 8 Butte Ca. 6 mi n, 1.5 mi nw of Paradise. 640 Comment
  CAS-BOT-BC198957  Ribes roezlii var. roezlii H. F. Copeland 1929-6-11 1237 Butte Jonesville 1524 Comment
  UC436294  Ribes viscosissimum E. B. Copeland July, 1930 Butte above Jonesville 1950 Comment
  SEINET13942866 Image available Ribes viscosissimum A. A. Heller 1915-1 12032 Butte Summit of the Sierra Nevada above Jonesville, elevation 7000 feet, on the summit of a ridge about rocks. 2134 Comment
  CHSC37831  Ribes viscosissimum var. viscosissimum R. A. Schlising; K. Tarp 1982-7-24 4338 Butte E of Stirling City, below Diversion Dam on West Branch of Feather River, on Retson Road. At streamside. 975 Comment
  UC221006  Rorippa Dr. Edward Palmer Jun 7 1892-Jun 12 1892 2089 Butte near Chico; near Chico Comment
  CDA25116  Rorippa curvisiliqua var. occidentalis L. Ahart 2002-10-17 9988 Butte About 1 1/2 miles south of Highway 162 (Oroville Quincy Highway), about 3 miles (air) northeast of Oroville Dam. On the gentle hills below the high water line of Lake Oroville. Comment
  CHSC65775  Rorippa curvisiliqua var. occidentalis Vernon H. Oswald 1996-4-10 7352 Butte Sacramento Valley. 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 levee between Tract 10.1 and Tract 10.2 (seasonal marshes), Sanctuary 1. 32 Comment
  CHSC50027  Rorippa curvisiliqua var. orientalis Lowell Ahart 1990-4-15 6452 Butte Below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/8 mile north-west of the Enterprise Bridge across Lake Oroville. 289 Comment
  JEPS115373  Rorippa nasturtium-aquaticum Lowell Ahart 2009-6-3 15819 Butte Drainage below dam, about 100 yards west of the table at the old homestead and 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 intersecti 232 Comment
  UC1594531  Rorippa palustris Lowell Ahart 1992-4-7 6745 Butte on s side Biggs Princeton Road about 3 mi w Biggs; w of Biggs 30 Comment
  UCD149847  Rorippa palustris BED 1974-6-17 s.n. Butte Gray Lodge Wildlife Area, Field 53. Comment
  CHSC75990  Rorippa palustris var. hispida Lowell Ahart; Vernon H. Oswald 1999-8-13 8182 Butte Along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  UC2026882  Rosa banksiae Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17869 Butte Between the edge of the paved road and the back of a home, east of the Deer Pen, between Table 12 & 13, Lower Bidwell Park, Chico. Comment
  UC481514  Rosa bridgesii H. F. Copeland 1931-6-10 Butte rock crest between Willow Creek and Colby Creek; Jonesville Comment
  RSA755419  Rosa californica L. Ahart 2009-8-3 16264 Butte About 100 yards west of the table at the old homestead and southwest of Ten Mile House Road, Upper Bidwell Park, about 3/4 air mile southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 240 Comment
  SEINET10483501  Rosa californica Mary Susan Taylor 1975-7-4 Taylor 833 Butte Washout area, Sacramento River off River Road, ca. 10 mi E of Chico. Riparian Woodland with Populus fremontii, Sorghum halepense. 30 Comment
  SEINET10904100  Rosa californica Mary Susan Taylor 1980-5-24 Taylor 2747 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CAS-BOT-BC148125  Rosa gymnocarpa Helen M. Edwards 1917-6-1 s.n. Butte DeSabla Comment
  CHSC93959  Rosa pisocarpa R. D. Fischer 2004-6-20 756 Butte Sierra Nevada Mountains, north-east corner of Butte County and ca. 4 miles north of Butte Meadows off Scout Road. Boy Scout Camp. Plants collected off a dirt road running on the east side and parallel to Chico Meadows. 1371 Comment
  JEPS94329  Rosa pisocarpa subsp. ahartii Lowell Ahart 1997-8-1 7797 Butte about 1/4 mi e of Table Mountain (about 8 air mi ne of Stirling City, on the bottom of Little Kimshew Creek); Little Kimshew Creek 1371 Comment
  CHSC23537  Rubus armeniacus M. S. Taylor 1976-3-16 1027 Butte On n side of Butte Creek, ca. 5 ft w of Honey Run Bridge, ca. 8 mi e of Chico. 152 Comment
  CHSC52470  Rubus armeniacus L. P. Janeway 1987-5-20 2067 Butte Turnout and seepy area on E side of Hwy 70 just S of the 'Rock House' and 0.5 mi S of Jarbo Gap. 670 Comment
  CHSC52472  Rubus armeniacus L. P. Janeway 1987-5-20 2061 Butte Near Gold Flat, Hodap Cr, jct of Lunt Rd and Nelson Bar Rd. Creek bottom. 457 Comment
  CHSC102620  Rubus laciniatus Lowell Ahart 2009-7-9 16013 Butte On the east edge of big Chico Creek, about 15 yards west of Ten Mile House Road, Upper Bidwell Park about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 181 Comment
  UC426912  Rubus parviflorus E. B. Copeland 1930-7-16 419 Butte Jonesville 1600 Comment
  CHSC43632  Rudbeckia occidentalis var. occidentalis Vernon Oswald 1987-7-16 3127 Butte West Branch of Feather River upstream of where it crosses the road to Jones Meadow, ca. 1 mi (air) ne of Inskip. 1341 Comment
  CHSC37136  Rumex acetosella L. Ahart 1982-5-28 3443 Butte Under a Digger Pine and near a small wash, e of North Honcut Creek, ca. 1.5 mi n and 3 mi e of Honcut. 50 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
  CHSC33679  Rumex crispus L. Ahart 1981-5-16 2810 Butte In one of the drying duck ponds on Graylodge Waterfowl Mgmt Area, 11 mi sw of Gridley. 35 Comment
  CHSC25289  Rumex obtusifolius subsp. agrestis M. S. Taylor 1977-7-15 1420 Butte Scattered along w branch of Feather River, ca. 1 mi n of Magalia, ca. 1 mi e of the Skyway. 677 Comment
  CAS-BOT-BC433780  Rumex pulcher Lowell Ahart; John Thomas Howell; Gordon H. True 1974-5-3 50335 Butte Honcut Comment
  UC600492  Rumex salicifolius var. triangulivalvis H. F. Copeland 1932-8-17 Butte Butte Creek Jonesville 1500 Comment
  UCD77982  Rupertia hallii Robert E. Preston 2003-7-17 2161 Butte Ca. 1 mi SW of Butte Meadows, along both sides of The Skyway 1447 Comment
  JEPS94145  Sagina apetala Lowell Ahart 1998-6-9 8003 Butte ca. 7 mi. (air) n. Oroville (ca. 5/8 mi. n.w. of the lone oak tree, n.w. of the cow chute along Cherokee Rd., in tracks of dirt rd., North Table Mt.); North Table Mt. 396 Comment
  UCSB64010  Sagina apetala Ahart, Lowell 1985-3-4 Butte At the Palermo Post Office, Palermo 36 Comment
  CHSC98975  Sagina decumbens subsp. occidentalis Lowell Ahart 2008-5-12 14732 Butte Below the high water line of Lake Oroville, on the east side of Sucker Creek, about 40 yards north of where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile west of the Ponderosa Dam. 258 Comment
  UC1562015  Sagina decumbens subsp. occidentalis Barbara Ertter with Lowell Ahart 1986-4-13 5896 Butte ca. 2 airmiles n.-n.e. Honcut (between Oroville and Marysville, Peter Ahart Ranch); Peter Ahart Ranch 30 Comment
  CHSC52012  Sagina saginoides L. P. Janeway 1988-6-16 2814 Butte Along Butte Cr 1.4 mi S of Humboldt Rd via the rd in the W side of the cyn. 1264 Comment
  UC1602295  Sagina saginoides unknown 1892-6-29 Butte Jonesville Comment
  CHSC52143  Sagittaria longiloba L. P. Janeway 1988-6-12 2758 Butte Corner of rice field near jct of hwy 162 and Midway; 2 mi S of Richvale. 28 Comment
  UC2026859  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. Comment
  CAS-BOT-BC129948  Salix bonplandiana A. A. Heller 1919-4-12 13103 Butte Cherokee mine in the blue oak and digger pine belt. Comment
  POM218986  Salix eastwoodiae E. B. Copeland 1931-6-11 617 Butte Jonesville. Kirby's Meadow. 1750 Comment
  POM219139  Salix eastwoodiae H. F. Copeland 1931-6-11 1544 Butte Jonesville. Kirby Meadows. 1829 Comment
  RSA4404  Salix eastwoodiae E. B. Copeland 1931-6-11 617 Butte Jonesville. Kirby's Meadow. 1750 Comment
  UC1134894  Salix exigua var. hindsiana P. L. Johannsen 1936-8-12 980 Butte 3/4 mi nw of junction of Chico and Campbell Creeks; Paynes Creek Quadrangle Comment
  CAS-BOT-BC107831  Salix gooddingii A. A. Heller 1914-4-6 11262 Butte Chico-Oroville Road 12 miles from Chico Comment
  CAS-BOT-BC129576  Salix lasiolepis var. lasiolepis John Thomas Howell; Gordon H. True 1969-4-8 45487 Butte Near Pulga Bridge west of Pulga - Sierra Nevada 411 Comment
  CHSC42542  Salix lucida subsp. lasiandra Lowell Ahart 1987-5-22 5684 Butte About 1/8 mile north-east of Camp 18, about 6 1/2 miles north-east of Feather Falls. 1219 Comment
  CAS-BOT-BC129493  Salix melanopsis Lowell Ahart 1987-5-6 5539 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. 274 Comment
  SEINET12320802  Sambucus caerulea Unknown 1974-1 s.n. Butte ca 6mi NE of Chico Municipal Airport on Cohasset Rd 518 Comment
  CHSC81480  Sambucus mexicana Petra M. Lee 2000-4-30 Butte Chico. 1 mile NE of Horseshoe lake in Upper Bidwell Park 500 yards away from Big Chico Creek. 91 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
  POM193376  Sambucus microbotrys E. B. Copeland 1930-7-12 480 Butte Above Jonesville, along north brow of high ridge 2100 Comment
  SD4966  Sambucus racemosa E. B. Copeland 1930-7-12 Butte Above Jonesville 2100 Comment
  CHSC45960  Samolus parviflorus Lowell Ahart 1984-7-25 4762 Butte Peter Ahart Ranch, about 1 mile north and 3 miles east of Honcut, about 12 miles south of Oroville. Along the wet edges of North Honcut Creek. 42 Comment
  CHSC87440  Sanicula bipinnatifida R. D. Fischer; Jenny Marr 2004-4-2 104 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Collected along Guardian Trail south of Pine Trail junction. 396 Comment
  UC566789  Sanicula bipinnatifida Herbert L. Mason 1927-5-10 3713 Butte ne of Oroville (Table Mountain, Cherokee Mine); Table Mountain, Cherokee Mine 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
  CHSC96828  Sanicula graveolens Lowell Ahart 2007-5-29 13950 Butte On the south side of the Dome Trail, trail leads to the Middle Fork of the Feather River, about 100 yards northeast of the trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Big Bald Rock, about 16 miles (air) northeast of Oroville. 844 Comment
  RSA4483  Sanicula graveolens E. B. Copeland 1931-6-22 666 Butte Jonesville. On ridge east of the Summit 2100 Comment
  CHSC65441  Sanicula tuberosa L. P. Janeway 1995-5-18 4763 Butte Jackson Ranch Ridge, between Fall River and Frey Creek. 1106 Comment
  SD3415  Sanicula tuberosa E. B. Copeland 1929-7-20 Butte Jonesville 1550 Comment
  SEINET10965510  Saponaria officinalis Mary Susan Taylor 1982-8-16 Taylor 4987 Butte T24N R4E sw/se sec 28. Paradise NE quad. S end of Stirling City, along both sides of the Skyway. Mixed Evergreen Forest; 3400 ft. 1036 Comment
  UC1594731  Saxifraga bryophora Lowell Ahart 1992-7-26 6857 Butte about 1/4 mi ne of the Carr Mine (about 2 air mi se of Snow Mountain) 1798 Comment
  CHSC24651  Saxifraga californica S. Deaton 1976-4-14 12 Butte 2 mi n of Feather Falls parking lot. 20 ft off s side of trail. 853 Comment
  RSA699518  Saxifraga californica R. D. Fischer 2004-3-22 117 Butte Upper Bidwell Park in Chico, on the lower E side. along road leading to old pistol range at bottom of the nearly sheer road cut. Tuscan Formation and N facing 76 Comment
  UC1212527  Saxifraga odontoloma H. F. Copeland 1932-8-22 Butte vicinity of Jonesville (se of crest of Butte Creek); Lassen National Forest Comment
  CHSC100982  Scandix pecten-veneris L. P. Janeway 2008-4-2 9242 Butte Northern Sierra Nevada Foothills. Along edge of Pentz Road 0.6 km north of Durham-Pentz Road. Narrow gravel road shoulder. 198 Comment
  CHSC44619  Sceptridium multifidum Vernon Oswald 1985-9-2 1935 Butte Concow Rd. ca. 6 air miles nne of Lake Concow at Rag Dump. Near Fall Creek. 1170 Comment
  CAS-BOT-BC283623  Schedonorus pratensis Lowell Ahart 1982-4-29 3399 Butte Along side of the dirt road, W of the Gray Lodge Headquarters ca 0.25 mile, Gray Lodge, ca 12 miles SW of Gridley 35 Comment
  SEINET10467273  Scirpus congdonii Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4754 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
  UCD141241  Scirpus congdonii Robert E. Preston 1982-7-16 336 Butte Crane Valley. 1584 Comment
  UC1100855  Scirpus maritimus Herbert L. Mason 1945-9-19 12732 Butte nw Pennington (Gray Lodge Game Refuge); , nw of Pennington Comment
  CHSC98953  Scleranthus annuus subsp. annuus Lowell Ahart 2008-5-12 14743 Butte Below the high water line of Lake Oroville, on the east side of Sucker Creek, about 100 yards north of where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile west of the Ponderosa Dam. 258 Comment
  CHSC29300  Scribneria bolanderi J. D. Prouty 1980-4-25 80 .81 Butte N of Serene Lane ca. 3 mi. s of Oroville. 82 Comment
  JEPS117411  Scribneria bolanderi Lowell Ahart 2010-5-22 16714 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
  SFV3445  Scrophularia californica subsp. floribunda M. L. Vincent 1962-4-17 199 Butte Sierra Nevada At Pentz and Nelson Bar Roads. 5 miles south of Paradise. 330 Comment
  CHSC55501  Scutellaria californica L. P. Janeway 1991-6-8 3994 Butte Side ravine on south side of Montgomery Bar Ravine, ca 0.3 mi from Lake Oroville high water mark. 377 Comment
  CHSC93861  Scutellaria californica Lowell Ahart 2006-6-9 12658 Butte On the north side of Bardees Bar Road, north of the small stream, on the east side of the large stream, about 1/8 mile northwest of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga. 385 Comment
  CHSC51234  Scutellaria siphocampyloides Lowell Ahart 1977-5-20 1388 Butte Growing on the banks of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles south of Oroville. 54 Comment
  CHSC59326  Scutellaria tuberosa J. L. Guardino 1992-4-16 5 Butte Paradise, 1/4 mi s of Circle Dr., terminus. 472 Comment
  CHSC3945  Sedella pumila M. Lee 1967-4-10 7 Butte On w. side of Cherokee Rd. 8 1/2 mi. N. of Oroville. Comment
  CHSC90599  Sedella pumila Ramona Hurst 1984-4-22 9 Butte Found on s side of Humboldt Ave. ca. 6 yds s of rd, 0.5 mi e of intersection with Bruce Rd. 64 Comment
  JEPS107760  Sedella pumila Lowell Ahart 2005-5-11 11802 Butte Steep slope on the south side of Beatson Hollow, southwest of drainage entering Beatson Hollow, about 1 1/4 miles northwest of the poor dirt road off of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  CHSC4666  Sedum spathulifolium R. Carter 1966-4-11 332 Butte Found Ca. 1 mi. E of Bidwell Bar along R.R. tracks, just W of R.R. bridge over S Fork. 152 Comment
  CHSC28877  Selaginella hansenii M. S. Taylor 1980-3-1 2330 Butte West end of county dump on n side of Neal Rd, ca. 1 mi e of Hwy 99, ca. 7 mi s of Chico. 76 Comment
  SEINET10530433  Selaginella hansenii Mary Susan Taylor 1979-11-11 Taylor 2289 Butte T20 N R1E. Ca. 6 mi S of Chico, on W side of Goodspeed-Watt Road. With Jim Jokerst. 34 Comment
  SEINET10530445  Selaginella wallacei Mary Susan Taylor 1980-5-27 Taylor 2666 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
  HSC78629  Selaginella wallacei L. P. Janeway 1984-10-8 1180 Butte Along Hwy. 70, along N fork of Feather River 488 Comment
  UC492746  Senecio aronicoides E. B. Copeland 1931-6-22 Butte mountain top w of Big Summit; Jonesville 2200 Comment
  NY233354  Senecio lewisrosei L. S. Rose 1939-6-7 39247 Butte North Fork of Feather River, 3 miles south of Pulga 609.6 Comment
  CHSC101142  Senecio sylvaticus Lowell Ahart 2009-5-15 15692 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
  JEPS122147  Senecio sylvaticus Lowell Ahart 2014-8-13 19706 Butte About 120 yards east of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  CAS-BOT-BC364269  Senecio triangularis H. F. Copeland 1920-8-12 115 Butte Jonesville 1219 Comment
  UC478458  Senecio triangularis E. B. Copeland 1931-7-4 699 Butte Jonesville 1550 Comment
  UC832133  Senecio triangularis A. A. Heller 1914-7-23 11591 Butte in meadows Chico; in Chico meadows 1219 Comment
  CDA8687  Senecio triangularis T. C. Fuller 1962-7-12 9168 Butte 2 miles east of Butte Meadows. 0 Comment
  CAS-BOT-BC364551  Senecio vulgaris T. C. Fuller 1962-12-7 9958 Butte Hipp Ranch, end of Oliva Ave., 0.5 mi. e. of Mt. Ida Rd., ca. 7 mi. e. of Oroville Comment
  CHSC28776  Sericocarpus oregonensis J. D. Jokerst 1979-7-12 323 Butte 1.0 mi W of Kimshew Falls and W. Branch Feather River along smaller stream. 853 Comment
  CHSC40469  Sericocarpus oregonensis Lowell Ahart 1985-8-15 5165 Butte East of the road to the Forbestown Res., about 2 1/2 miles northeast of Forbestown. 883 Comment
  CHSC48129  Sericocarpus oregonensis Vernon H. Oswald 1985-8-15 1930 Butte Skyway 0.2 mi S of Inskeep. 1463 Comment
  JEPS98698  Sesbania punicea Lowell Ahart 2000-8-23 8660 Butte On the margins of a small pond, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. 42 Comment
  CHSC6147  Setaria gracilis E. Parreno 1968-5-1 81 Butte Front lawn of house on nw corner of Ivy and W 2nd Sts., Chico. 59 Comment
  UC1563269  Setaria pumila unknown 1990-10-21 6638 Butte ca. 1/2 mi. w. Gold Flat (ca. 1 mi. n. of Nelson Bar Rd., Lake Oroville); Lake Oroville 213 Comment
  SEINET10609527  Setaria pumila Roland McKee 1918-8-12 McKee s.n. Butte Weed in alfalfa plots, Plant Industry Station, Chico. Comment
  CHSC46086  Sherardia arvensis Lowell Ahart 1989-3-25 6199 Butte Along an old dirt road, near Lake Oroville, about 1/4 mile north-west of the West Branch Bridge across Lake Oroville. 304 Comment
  CHSC82397  Sherardia arvensis Lowell Ahart 2002-5-7 9643 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
  SEINET11994748  Sibara virginica Unknown 1985-1 4871 A Butte along Wyandotte Creek & Central House Road, NW of Honcut, about 12 mi S of Oroville 35 Comment
  CHSC45307  Sibbaldia procumbens V. Oswald; L. Ahart 1988-10-6 3705 Butte Meadow near the headwaters of Big Kimshew Creek, ca. 1.5 mi (air) ne of Jones Meadow. 1889 Comment
  CHSC29406  Sidalcea asprella R. A. Schlising; D. Ikeda, R. Banchero 1980-6-23 3759 Butte E of Lake Oroville, 3.4 mi N and W of Forbestown along Forbestown Road. 892 Comment
  CHSC29978  Sidalcea asprella Lowell Ahart 1980-5-12 2255 Butte Peter Ahart Ranch, ca 1.5 mi N and 2.75 mi E of Honcut; near North Honcut Creek. 50 Comment
  UC764088  Sidalcea calycosa subsp. calycosa R. F. Hoover 1936-5-21 1164 Butte 7 mi n Chico; n of Chico Comment
  JEPS118038  Sidalcea diploscypha Lowell Ahart 2011-5-27 17357 Butte On damp brown to black clay soil, about 150 yards west of the west edge (dredged area) of North Honcut Creek, about 2 1/2 north and 2 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville 65 Comment
  UC478500  Sidalcea glaucescens E. B. Copeland 1930-7-21 658 Butte Jonesville 1550 Comment
  SEINET8945015  Sidalcea hartwegii A. A. Heller, H. E. Brown 1902-5-9 5512 Butte Berry Canyon, near Clear Creek. Comment
  UC726656  Sidalcea hartwegii A. A. Heller 1927-5-7 14366 Butte Paradise Grade Clear Creek, Paradise Grade Comment
  CHSC28473  Sidalcea hirsuta R. A. Schlising 1979-5-30 3429 Butte Richvale vernal pools; 1/4 mile S of jct Hwy 162-to-Oroville and Hwy 99, along latter and across from Thermalito Afterbay. Comment
  CHSC44085  Sidalcea hirsuta John E. Hunter 1986-3-31 42 Butte Vacant lot within City of Chico, ca. 75 m nw of the intersection of East Ave. and Ceanothus. 62 Comment
  UC871460  Sidalcea hirsuta A. A. Heller 1915-5-16 11871 Butte Chico-Centerville road 3 mi from Chico; 3 mi from Chico Comment
  NY43505  Sidalcea oregana S. Bianco 1995-10-19 1044 Butte E side of Concow Rd, ca. 0.8km S of Hoffman Rd, on S side of creek 760 Comment
  CHSC39411  Sidalcea oregana subsp. spicata L. Ahart 1983-8-16 4308 Butte In small mountain meadow, near Bull Hill Rd, ca. 3.5 mi south of Butte Meadows. 487 Comment
  LA205945  Sidalcea oregana subsp. spicata E. B. Copeland; 1930-7-15 sn Butte Jonesville 1500.0 Comment
  SEINET10480011  Sidalcea oregana subsp. spicata Mary Susan Taylor 1975-8-31 Taylor 882 Butte Riparian Woodland, on Ernies Island in Butte Creek, ca. 50 ft S of Humboldt Rd, ca. 0.5 mi E of Butte Meadows. 1341 Comment
  RSA755645  Sidalcea robusta L. Ahart 2009-5-15 15681 Butte About 10 yards E of the dirt road that is Ten Mile House Road, Upper Bidwell Park, about 3/4 air mile W of Highway 32, about 10 miles NE of Chico. 235 Comment
  CAS-BOT-BC385884  Silene douglasii A. A. Heller 1914-8-7 11661 Butte Summit east of Jonesville 2133 Comment
  SEINET10537580  Silene douglasii Mary Susan Taylor 1979-7-21 Taylor 2146 Butte Humboldt Peak, at Humboldt Summit, tallest point in the county, on Butte- Tehama County line. 2155 Comment
  CAS-BOT-BC387069  Silene gallica Lowell Ahart 1988-5-12 5988 Butte about .25 mile NE of the Honcut Cemetery, Joie Osgood Ranch, about 3.5 miles E and 1.5 miles N 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
  CAS-BOT-BC389012  Silene laciniata subsp. californica Lowell Ahart 1989-5-29 6313 Butte Along the road to the Forbestown Reservoir, about 1/2 mile south-west of the Forbestown Reservoir, about 4 miles north-east of Forbestown 548 Comment
  UCD99006  Silene laciniata subsp. californica Frank Polach 1967-4-22 15 Butte 1/2 mile from railroad, Feather Falls. 914 Comment
  CHSC481  Sinapis arvensis M. Goin 1933-3-17 Butte Field near Chico. 57 Comment
  CHSC118551  Sisymbrium altissimum Lowell Ahart 2017-4-22 21390 A Butte Where we park vehicals, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles (air) south of Oroville. 31 Comment
  CHSC48345  Sisymbrium irio Vernon Oswald 1984-3-24 1103 Butte Chico Municipal Airport, ca. 200 ft e of the e end of Piper Ave. 82 Comment
  UC600466  Smilacina racemosa E. B. Copeland July, 1930 Butte Jonesville 1550 Comment
  UC119654  Smilacina stellata Mrs. R. M. Austin 14 Butte Little Chico Canyon Comment
  NY201648  Smilax californica S. Bianco 1995-9-24 1031 Butte Between Ishi Trail and unnamed creek to the S 762 Comment
  SEINET3893523  Smilax californica H. F. Copeland 1929-5-4 1125 Butte Canyon of Chico Creek.; 0 Comment
  CHSC97697  Solanum americanum Lowell Ahart 2007-10-31 14521 Butte West of the official parking area, strand of Lake Oroville, Foreman Creek Area, about 1 mile south of Highway 162 (Oroville Quincy Road), about 7 miles (air) northeast of Oroville. 224 Comment
  CHSC11881  Solanum parishii E. B. Copeland 1930-7-27 453 Butte Jonesville. 1600 Comment
  HSC23325  Solanum parishii Carolyn Fante 1971-10-19 23 Butte E side Humbug Rd. 146 Comment
  CAS-BOT-BC365382  Solidago elongata A. A. Heller 1914-7-23 11611 Butte Sierra Nevada at Chico Meadows 1219 Comment
  CAS-BOT-BC364938  Solidago velutina subsp. californica Lowell Ahart 1982-9-12 3799 Butte On the high banks of North Honcut Creek, Peter Ahart Ranch, about 1 1/4 miles north and 3 miles east of Honcut 50 Comment
  CHSC111368  Sonchus oleraceus Lowell Ahart 2012-5-14 18061 Butte Planted area between sidewalk and Vallombrosa Avenue, west of Manzanita Avenue, just west of the bridge across Big Chico Creek, Lower Bidwell Park, Chico. 79 Comment
  UCD136187  Sonchus oleraceus E. M. Johnston 1915-1 140 J Butte Biggs. Comment
  CHSC79905  Sorbus scopulina G. F. Hrusa; T. D. Wilfred 1996-7-9 13107 Butte Northern California, Plumas National Forest. Drainage of Jordan Creek, S of Hwy 162 near Roger's Cow Camp. [Lat./Long. on label is '39 46 N; 121 17 W']. 1175 Comment
  CHSC9344  Sorghum halepense B. Anthony 1968-5-8 513 Butte 2 miles E. of Hamilton City, Hwy. 32. Comment
  CHSC44488  Spergula arvensis subsp. arvensis Lowell Ahart 1988-5-12 5989 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
  CHSC225  Spergularia bocconi V. Holt 1935-4-24 Butte Roadside near Plant Gardens. 60 Comment
  JEPS115355  Spergularia bocconi Lowell Ahart 2009-7-3 15986 Butte On the north side of the road, 30 yards west of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 30 yards east of Cedar Grove, Lower Bidwell Park, Chico 67 Comment
  CHSC90650  Spergularia rubra Lowell Ahart 2005-4-2 11688 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
  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
  SEINET10537508  Spergularia rubra Mary Susan Taylor 1979-8-4 Taylor 2182 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
  CHSC94015  Sphenosciadium capitellatum R. Fischer 2005-9-5 661 Butte Location about 4 road miles east of Jonesville adjacent to county road 26N11, ca. 1 mile north of Humboldt Road. Plants growing at edge of Scotts John Creek in an area of mixed pine and fir forest. 1737 Comment
  JEPS105915  Spiranthes stellata Lowell Ahart 2004-8-2 11325 Butte Small bog in a large meadow, about 200 yards east of Keyser Creek, on the north side of the dirt County Road, about 3/4 mile (air) northeast of Oak Point, about 1/2 mile (air) west of Big Kimshew Creek, about 1 3/4 miles southeast of Bald Mountain 1452 Comment
  CHSC60990  Stachys ajugoides var. ajugoides Lowell Ahart 1993-6-19 6973 Butte On the west side of Hatch Road (Goodspeed Watt Road), 8 miles west of Gridley. 21 Comment
  UC726522  Stachys ajugoides var. rigida A. A. Heller 1917-7-26 12815 Butte Butte Meadows 1280 Comment
  UC884348  Stachys ajugoides var. rigida A. A. Heller 1915-5-28 11907 Butte near Cohasset; Sierra foothills Comment
  JEPS115720  Stachys pycnantha Lowell Ahart 2009-8-23 16259 Butte Drainage 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
  SD6179  Stachys rigida var. rigida E. B. Copeland 1930-7-20 Butte Jonesville 1500 Comment
  CHSC26645  Stachys stricta M. S. Taylor 1977-11-12 1534 Butte In Devil's Kitchen, Upper Bidwell Park, Chico. 243 Comment
  CHSC39548  Stachys stricta Lowell Ahart 1983-7-29 4217 Butte About 2 1/2 miles west on Bloomer Hill Road from the Oroville Quincy Highway, about 13 miles north of Oroville. 500 Comment
  UC600630  Stellaria borealis subsp. sitchana E. B. Copeland 1930-7-4 Butte Jonesville Comment
  SEINET10833472  Stellaria jamesiana Mary Susan Taylor 1978-7-19 Taylor 1753 Butte On W side of Upper Scotts John Road, ca. 2 mi N of its junction with Scotts John Road, ca. 4 mi E of Jonesville. 1829 Comment
  JEPS121997  Stellaria longifolia Lowell Ahart 2014-7-13 19649 Butte About 100 yards southeast of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  CHSC39071  Stellaria media R. A. Schlising 1983-3-20 4399 Butte Richvale Vernal Pools, 0.25 mile south of junction with Highway 162 to Oroville, along Highway 99 and across from Thermalito Afterbay. Near fences. Comment
  CAS-BOT-BC395120  Stellaria nitens Ahart; Jokerst 1985-3-24 4862 Butte W of Lunt Road, about 1/2 mile N of the intersection of Lunt Road and Highway 70, N of Yankee Hill 550 Comment
  CHSC48281  Stellaria obtusa Vernon Oswald 1987-7-29 3160 Butte Near Coon Hollow Rd. at the W. Branch of the Feather River, ca. 2.5 mi (air) n of Philbrook Reservoir. On the edge of a small backwater of the river. 1621 Comment
  JEPS113238  Stellaria pallida Lowell Ahart 2007-3-12 13591 Butte At the information sign, north side of Rutherford Road, 50 yards west of Pennington Road, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area), about 6 miles (air) southwest of Gridley 21 Comment
  CHSC50989  Stephanomeria elata Lowell Ahart 1990-8-15 6592 Butte Below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/2 mile north-west of the Enterprise Bridge across Lake Oroville. 274 Comment
  CHSC11835  Stephanomeria lactucina E. B. Copeland 1930-7-24 500 Butte Jonesville. 1550 Comment
  POM219097  Stephanomeria lactucina H. F. Copeland 1928-8-14 393 Butte Jonesville. Comment
  SD5078  Stephanomeria lactucina E. B. Copeland 1930-7-24 Butte Jonesville 1550 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
  UC1562279  Stephanomeria paniculata Lowell Ahart 1990-8-15 6592 Butte Below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/2 mile north-west of the Enterprise Bridge across Lake Oroville. 274 Comment
  UC1586575  Stephanomeria paniculata Lowell Ahart 1991-8-25 6704 Butte On the north side of the dirt road, Forest Road 23N60 (Jordan Creek-Marble Creek Road) east of Marble Creek, about 6 miles (air) northeast of Brush Creek. 1097 Comment
  CHSC109681  Stipa miliacea var. miliacea Lowell Ahart 2012-6-21 18216 Butte On the south side of Big Chico Creek about 20 yards west of the Freeway, Lower Bidwell Park, Chico. 62 Comment
  SEINET10508395  Stipa nelsonii Mary Susan Taylor, L. Hanson 1981-4-10 Taylor 3522 Butte T22N R4E ne sec 2, Pulga SW quad. S-facing barren serpen- slope ca. 50 ft. up from creek, ca. 1/4 mi n of Pine Cluster Ranch, base of open dry serptentine outcrop between Concow Rd and a large knoll, ca. 6 mi n of Jarbo Gap on Hwy 70; 2400 ft. 721 Comment
  CDA25173  Streptanthus diversifolius L. Ahart 1998-6-3 7967 Butte About 1/4 mile north of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  CHSC38026  Streptanthus drepanoides R. E. Preston 1982-6-2 293 Butte Ca. 0.6 mi ese of Kunkle Reservoir, on W. Branch Feather River arm of Lake Oroville, ca. 4.5 mi se of Paradise. 280 Comment
  CHSC31143  Streptanthus longisiliquus M. S. Taylor 1980-7-6 3074 Butte On s side of Old Humboldt Rd, slope beneath power lines, ca. 0.9 mi w of Butte Meadows Forestry Station. 1341 Comment
  CAS-BOT-BC87429  Streptanthus polygaloides John Thomas Howell 1955-6-14 30460 Butte Sierra Nevada. Magalia. 731 Comment
  CHSC33179  Streptanthus polygaloides R. E. Preston 1981-6-2 76 Butte Ca. 100 m n of Bardee's Bar Rd., ca. 0.8 km from its jct with Big Bend Rd., ca. 24 km nne of Oroville. 670 Comment
  CHSC86434  Streptanthus polygaloides Jenny Marr 1994-6-13 89 Butte Located in Northern Sierra Nevada, north of the town of Magalia, on an exposed serpentine outcrop belonging to LNF. Site approx. 0.3 air miles north of Magalia Reservoir. 759 Comment
  CAS-BOT-BC87511  Streptanthus tortuosus Lowell Ahart 1982-6-15 3558 Butte About 1.5 mile east of Camp 18, about 8 miles east of Feather Falls. 1000 Comment
  CHSC33187  Streptanthus tortuosus R. E. Preston 1981-6-2 79 Butte Ca. 400 m w of Butte/Plumas county line, on s side of Hwy 70, ca. 41 km nne of Oroville. 488 Comment
  CDA13264  Streptanthus tortuosus var. tortuosus G. F. Hrusa, T. D. Wilfred 1996-7-9 13112 Butte Plumas National Forest; Nr. headwaters of Jordan Creek, S of Hwy 162 near Roger's Cow Camp. Comment
  UCSB13228  Swertia albicaulis var. nitida Dearing, Hugh; Dearing, Margaret 1938-6-21 Butte 21 mi. N. of Chico; nr. Lone Pine Lookout; Butte Co., Calif 1219 Comment
  RSA4159  Symphoricarpos acutus E. B. Copeland 1930-7-7 479 Butte Jonesville. 1700 Comment
  CAS-BOT-BC99223  Symphyotrichum ascendens H. F. Copeland 1920-8-1 168 Butte Jonesville 1219 Comment
  SD5377  Symphyotrichum bracteolatum E. B. Copeland 1930-8-26 Butte Jonesville,in and near springs. 1500 Comment
  CHSC69669  Symphyotrichum chilense Vernon H. Oswald 1988-5-18 3319 Butte West edge of Kunkie Reservoir SE of Paradise. 445 Comment
  JEPS118055  Symphyotrichum spathulatum Lowell Ahart 2011-8-23 17650 Butte In the large meadow, Pinkard Creek flows through the meadow, east of the corral, about 1 mile north of Lost Creek Reservoir Dam, about 4 miles (air) northeast of Clipper Mills 1133 Comment
  UC600723  Symphyotrichum spathulatum H. F. Copeland 1932-8-19 Butte Jonesville, at the Lily Pond 1700 Comment
  UCD136687  Symphyotrichum subulatum var. parviflorum E. M. Johnston 1915-1 s.n. Butte Biggs. Comment
  CHSC428  Taraxacum officinale B. Richardson 1929-4-8 Butte Chico. 57 Comment
  SEINET10454609  Tauschia hartwegii Mary Susan Taylor 1975-2-16 Taylor 382 Butte Ca. 1/4 mi W of Pentz-Magalia Hwy, ca. 5 mi S of Paradise, in vicinity of Lime Saddle Reservoir. Foothill Woodland. Comment
  CAS-BOT-BC197423  Thinopyrum ponticum Lowell Ahart 1987-7-8 5805 Butte Along Big Bar Mountain Road, about 1 mile south-west of Coyote Gap, about 5 miles east of Pulga 1280 Comment
  CAS-BOT-BC88231  Thysanocarpus curvipes Copeland 1903-4-10 3031 Butte Chico. Comment
  CHSC101094  Thysanocarpus curvipes Lowell Ahart; John Dittes 2009-3-20 15500 Butte Open area west of the Guardian Rock Trail, about 175 yards southwest of the Ten Mile House Road Trail, about 300 yards west of Highway 32, west of the intersection of Highway 32 and Ten Mile House Road, Upper Bidwell Park, about 10 miles northeast of Chico. 407 Comment
  JEPS108848  Thysanocarpus curvipes var. elegans Lowell Ahart 2006-5-8 12608 Butte North of Phantom Falls, about 3/4 mile northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 384 Comment
  CHSC10663  Thysanocarpus radians Lowell Ahart 1971-4-5 Butte Peter Ahart Ranch, Honcut. 45 Comment
  UC1562453  Thysanocarpus radians Lowell Ahart 1990-4-23 6463 Butte about 1/2 mi e of Larkin Road about 1 mi s Oroville Airport; s of the Oroville Airport 45 Comment
  CHSC27270  Tilia americana P. Moyer 1972-6-5 226 Butte S side Chico Ck. next to curb of So-Wil-Len-No Ave., n of Ed-Psych. Bldg. 60 Comment
  CHSC3007  Tilia americana Carl Pejsa 1958-4-19 113 Butte Bidwell Park Forestry Station. Comment
  CHSC6037  Tilia americana M. MacArthur 1968-6-19 258 Butte Ca. 30 ft. SW of Esplanade bridge, along S side of Big Chico Creek, Chico State College. 60 Comment
  SEINET10449704  Tillaea erecta Mary Susan Taylor 1979-3-31 Taylor 1972 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
  CHSC39321  Torilis arvensis subsp. purpurea Lowell Ahart 1983-6-26 4111 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. 500 Comment