Search Results — 2000 specimen records retrieved (1571 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)

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

BerkeleyMapper with layers and yellow flags

Download Options:
Select all records · Select records with coordinates

Include annotations and voucher information

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

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

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

Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page.
A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SEINET10479965  Abutilon theophrasti Mary Susan Taylor 1978-9-8 Taylor 1905 Butte Around rice fields, ca. 6 mi N of Chico. 61 Comment
  CHSC33686  Acacia dealbata L. Ahart 1981-3-29 2708 Butte Along edge of Upper Palermo Rd, along edge of irrigation ditch; population spreading up and down ditch. 50 Comment
  JEPS95255  Acer circinatum Steve Edwards 1992-5-17 Butte Vilas Road, 0.9 mi from its junction with Cohasset Road Comment
  POM85639  Acer macrophyllum Edward Palmer 1892-6-7 2055 Butte Near Chico Comment
  RSA755322  Acer macrophyllum L. P. Janeway, B. Castro 2007-7-25 9227 Butte Cascade Range Foothills. Upper Bidwell Park, Chico; 6 m north of Big Chico Creek and about 6 m higher than the creek, between Upper Park Road and Yahi Trail, between Day Camp and the power lines. 91 Comment
  CHSC110943  Acer saccharinum L. P. Janeway 2013-3-19 11085 Butte Sacramento Valley. North slope of levee on south side of Feather River, Oroville; opposite (north of) the north end of 2nd Ave and Rotary Park. 46 Comment
  CHSC38313  Achillea millefolium Vernon Oswald 1983-5-11 474 Butte Upper Bidwell Park, Chico, on the slope s of the Pistol Range on the s border of the Golf Course. 121 Comment
  UC1133083  Achnatherum occidentale subsp. californicum P. L. Johannsen 1936-7-17 938 Butte 2 1/2 mi sse Butte Meadows; Paynes Creek Quadrangle Comment
  UC1594726  Achnatherum occidentale subsp. californicum Lowell Ahart 1992-7-26 6843 Butte 1/2 mi n Carr Mine (about 2 (air) mi s of Snow Mountain; w of small stream) 1767 Comment
  UC392235  Achnatherum occidentale subsp. californicum E. B. Copeland July, 1929 Butte woods w Willow Creek; Jonesville, Willow Creek 1600 Comment
  CHSC33374  Achyrachaena mollis Alisa Goldman 1980-4-23 20 Butte North of Chico. 57 Comment
  CHSC97720  Acmispon americanus var. americanus Lowell Ahart 2007-10-31 14518 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
  CHSC94053  Acmispon brachycarpus R. D. Fischer 2005-3-20 727 Butte Sierra Nevada foothills, adjacent Hwy. 32, below Forest Ranch in the Big Chico Creek Ecological Reserve on Lookout Trail. Plants growing on moist bank next to road side. 518 Comment
  CHSC40419  Acmispon grandiflorus var. macranthus Lowell Ahart 1985-5-15 4982 Butte East along the dirt road, about 1/2 mile north-east of Concow Res. 594 Comment
  CHSC33584  Acmispon parviflorus M. S. Taylor 1981-5-5 3597 Butte E side of Lumpkin-LaPorte Rd, 1 mi n of Enterprise bridge over south fork Feather River, ca. 10 air mi e of Oroville. Comment
  CHSC69113  Aconitum columbianum Lowell Ahart 1997-8-1 7768 Butte On the east side of Little Kimshew Creek, where the basalt is eight sided, Snow Meadow, about 1/4 mile east of Table Mountain, about 8 miles (air) northeast of Stirling City. 1524 Comment
  CAS-BOT-BC391378  Aconitum columbianum subsp. columbianum Mrs. J. H. Morrison 1932-7-4 s.n. Butte Mountains above Durham Comment
  CHSC45536  Aconitum columbianum var. columbianum Kirsten Tarp 1982-7-12 195 Butte N part of county, e of Butte Creek House. In meadow. 1926 Comment
  CHSC55251  Aconogonon phytolaccifolium Lowell Ahart 1991-8-25 6709 Butte Along the edges of Wildcat Creek, about 2 miles north-west of Four Trees, about 2 miles west of the Oroville-Quincy Highway, about 2 miles north-east of Coyote Gap. 1219 Comment
  SEINET8254686  Adelinia grandis Louis Whitaker 1935-5-11 Butte Bald Rock. Comment
  RSA718733  Adenocaulon bicolor L. Ahart 2006-7-25 13053 Butte About 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1570 Comment
  CHSC30851  Adiantum capillus-veneris L. Ahart 1980-9-10 2628 Butte Ca. 1 mi ne of Millsap Bar, ca. 25 mi ne of Oroville. 900 Comment
  UC440495  Adiantum jordanii Mrs. R. M. Austin 1896-5-1 242 Butte bluff of Butte Creek Comment
  UCD80687  Adiantum jordanii CNPS SN Foothill Team 2005-4-6 SNFN 0097 b Butte CDFG North Table Mountain Wildlife Area, on the north-facing slope of the south fork of Coal Canyon, approximately half-way down slope from the Table Top before creek. 377 Comment
  UCD137231  Adiantum jordanii G. M. Trimble 1974-4-28 sc- 17 Butte 300 yards W. of Covered Bridge; ca. 100 yards above the river. 266 Comment
  CHSC107910  Aegilops triuncialis L. P. Janeway 2011-6-29 10415 Butte Northern High Sierra Nevada. Along Encino Grande (Ponderosa Way) 1.0 road km west of the top of Bloomer Hill; 0.7 air km west-northwest of the top of Bloomer Hill. 820 Comment
  HSC93184  Aegilops triuncialis L. Ahart 1995-5-30 7581 Butte S of Beatson Hollow, 1/8 mi. N of Cherokee Road, N Table Mtn., 7 mi. N of Oroville. 335 Comment
  CHSC38456  Aesculus californica Vernon Oswald 1983-5-21 519 Butte Upper Bidwell Park, Chico, on the north rim 3400 ft e of the power lines. 292 Comment
  CHSC32379  Agoseris grandiflora J. D. Jokerst 1980-6-15 839 Butte Oroville-Quincy Highway, ca. 2 mi N of the bridge over Lake Oroville, (the northernmost bridge). Comment
  CHSC44148  Agoseris grandiflora Vernon Oswald 1988-8-3 3657 Butte Meadow on the N side of Butte Creek E of the road island on Humboldt Rd. S of Cherry Hill Campground. 1414 Comment
  CHSC101652  Agoseris heterophylla Lowell Ahart 2009-4-26 15634 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 Ten Mile House Road, just northeast of Guardians Trail. 381 Comment
  SEINET10506829  Agropyron Mary Susan Taylor 1981-5-22 Taylor 3794 A Butte T23N R5E nw/se sec 30, Pulga quad. Around large landing on saddle of ridge running SE from Flea Mt, above Pulga, ca. 5 air mi E of Magalia. 3600 ft. 1097 Comment
  RSA129582  Agrostis exarata H. S. Yates 1936-8-13 6105 Butte Paynes Creek; 2.5 miles S.S.E. of Butte Meadow 1494 Comment
  SEINET10507085  Agrostis exigua Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4166 Butte T21N R6E nw sec 29. Along a small seep near Bean Creek Rd, ca. 1/4 mi s of Little Bald Rock, ca. 20 mi ne of Oroville. Yellow Pine Forest; 1000 m. 1000 Comment
  JEPS98366  Agrostis hendersonii Lowell Ahart 2000-6-27 8515 Butte 12 air miles NE of Oroville (Big Bald Rock, 3 air miles E of Madrone Lake) 993 Comment
  UC1564752  Agrostis idahoensis V. Oswald and L. Ahart 1989-8-15 3944 Butte Soda Ridge Road 1.4 mi w of its junction with Coon Hollow Road (ca 1.2 mi (air) n of Philbrook Reservoir) 1752 Comment
  CHSC107924  Agrostis pallens L. P. Janeway 2011-7-18 10516 Butte Northern High Sierra Nevada. Plumas National Forest; along Dome Trail 0.3 km northeast of the trailhead, 1.1 air km south-southeast of Bald Rock Dome. Along top of northeast-trending ridge, often abundant along edges of the trail. 725 Comment
  CAS-BOT-BC138776  Agrostis scabra Lowell Ahart 1983-7-29 4220 Butte Sierra Nevada. Along the dirt road, ca. 2 miles south of Milsap Bar, ca. 23 miles northeast of Oroville. 750 Comment
  CHSC39555  Ailanthus altissima Lowell Ahart 1983-7-24 4208 Butte Near the dirt road at the Forbestown Res., about 5 miles north-east of Forbestown. 450 Comment
  CAS-BOT-BC138423  Aira caryophyllea Lowell Ahart 1980-5-17 2270 Butte 0.5 mile southeast of Hurleton. 600 Comment
  CHSC98974  Aira caryophyllea Lowell Ahart 2008-5-12 14740 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
  CAS-BOT-BC138411  Aira caryophyllea var. capillaris Lowell Ahart 1980-5-4 2191 Butte Near Hurleton. 600 Comment
  CHSC29993  Aira elegans L. Ahart 1980-4-13 2079 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC30029  Aira elegans L. Ahart 1980-5-4 2191 Butte Ca. 50 m sw of the intersection of Forbestown Rd and Hurleton Swedes Flat Rd, ca. 1/2 mi se of Hurleton. 600 Comment
  SEINET10869149  Aira elegans Mary Susan Taylor 1980-3-1 Taylor 2351 Butte T21N R3E nw 1/4 sec 5. Near Elliot Spring House, S side of Neal Road, ca. 2 mi SW of Paradise. 302 Comment
  CAS-BOT-BC131910  Allium John Thomas Howell 1955-6-14 30437 A Butte At Magalia 731 Comment
  RSA768995  Allium amplectens Lowell Ahart 2010-5-23 16729 Butte West side of Guardians Trail, north of the small drainage, about 50 yards north of Pine Trial, about 1/4 air mile west of Highway 32, about 9 air miles northeast of Chico. 430 Comment
  UCD73057  Allium amplectens Ayzik Solomeshch 2003-4-9 s. n. Butte Wurlitzer Reserve, about 10 mi. north from Chico on Hwy 99, west side of the road. Comment
  SEINET8112102  Allium amplectens K. Conger 1907-1 s.n. Butte Brush Creek. Comment
  SEINET3153878  Allium attenuifolium K. Conger 1907-1 sn Butte Brush Creek Comment
  CHSC36904  Allium campanulatum R. A. Schlising; R. Banchero 1980-6-12 3692 Butte N part of county along Hwy 32, 0.25 mi s of Tehama County line. 1121 Comment
  CHSC49473  Allium campanulatum Vernon Oswald 1983-6-22 746 Butte On the s side of Humboldt Rd. (to Butte Meadows) 3.3 mi n-e of Calif. Hwy 32. 1386 Comment
  CHSC40617  Allium cratericola Ahart; Jokerst 1985-3-24 4863 Butte West of Lunt Road, about 1/2 mile north of the intersection of Lunt Road and Highway 70, north of Yankee Hill. 550 Comment
  UCD138462  Allium cratericola C. D. Snider 1975-4-20 25 Butte Table Mountain: 7 mi. S of Hwy 70, Cherokee Road 5 mi S of Cherokee. 0.5 mi NW of road. 381 Comment
  CDA13909  Allium jepsonii G. F. Hrusa, T. D. Wilfred 1997-7-3 13990 Butte Sierra Nevada; Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. Comment
  CHSC75936  Allium jepsonii G. F. Hrusa; T. D. Wilfred 1997-7-3 13990 Butte Sierra Nevada. Above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. [Incomplete Lat./Long. on label is '39 51 N; 121 34 W']. 740 Comment
  CHSC101176  Allium membranaceum Matt Brown; Jamie Tuitele-Lewis 2005-6-3 Butte Northern High Sierra Nevada. East side of Cedar Creek and about 200 m uphill from it; 2.0 km northwest of Arch Rock Tunnel. UTM Zone 10: 4414000N, 636100E. 1280 Comment
  CHSC36953  Allium membranaceum R. A. Schlising; D. Ikeda, R. Banchero 1980-6-23 3761 Butte 0.6 mi W of Forbestown, along Forbestown Road. 902 Comment
  CHSC37127  Allium membranaceum M. S. Taylor 1982-6-24 4737 Butte On Flea Valley Ridge, ca. 1 mi se of Flea Mt, ca. 9 mi ne of Jarbo Gap on Hwy 70, ca. 20 air mi ne of Oroville. 1097 Comment
  CHSC7129  Allium peninsulare Nancy Wiseman 1969-5-5 Butte Across the creek from Chico Municipal Golf Course Club House, Chico. Comment
  CAS-BOT-BC132070  Allium peninsulare var. peninsulare Carl B. Wolf 1937-5-13 8658 Butte Sierra Nevada Foothills, 6 6/10 mi. SE. of Oroville on road to Wyandotte 121 Comment
  CHSC49481  Allium validum Vernon Oswald; Lowell Ahart 1987-7-1 3046 Butte Scotts John Rd. at 'Big Rock Meadow,' 1.0 mi n of the road connecting Humboldt and Humbug Rds, ca. 2.5 mi ene of Jonesville. 1780 Comment
  CHSC39975  Allophyllum divaricatum L. Ahart; P. Ahart 1983-7-29 4258 Butte Ca. 3 mi e of Milsap Bar, ca. 25 mi ne of Oroville. Along edge of dirt road. 1100 Comment
  SEINET10969174  Allophyllum gilioides Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4163 Butte T21N R6E ne sec 29. Along sides of Bean Creek Rd, ca. 0.5 mi s of Little Bald Rock, ca. 19 mi ne of Oroville. Yellow Pine Forest; 1000 m. 1000 Comment
  CHSC46477  Alnus rhombifolia Lowell Ahart 1977-11-21 1226 Butte Along the edge of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles south of Oroville. 54 Comment
  CHSC49505  Alopecurus aequalis Vernon Oswald 1987-5-26 2932 Butte Rancho Bosquejo. East side of the Sacramento River at the w end of Cana Hwy (Feenstra's Riverview Orchard). 48 Comment
  CHSC113278  Alopecurus carolinianus Lowell Ahart 2014-4-26 19417 Butte Sides of a cleaned ditch, on the south side of Butte City Highway (Highway 162), collected from the railroad to the east about 200 yards, east of the Rice Experimental Station. 30 Comment
  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
  SBBG128584  Alopecurus saccatus L. Ahart 2010-5-16 16691 Butte bottom of vernal pools, ca. 0.25 mi S of parking area, N Table Mtn, ca. 4.5 mi (air) NE of Oroville 371 Comment
  UCD55955  Alopecurus saccatus A. A. Heller 1914-4-24 11319 Butte 10 miles from Chico on the Chico-Oroville road. Comment
  SEINET10511195  Alopecurus saccatus M. E. Banning 1969-4-18 Banning 76 Butte Table Mt., 1/2 mi. from Ore. City junction. 488 Comment
  CHSC107407  Alyssum desertorum Jake Ruygt 2009-5-24 5420 g Butte McArthur-Burney Falls State Park. 895 Comment
  RSA0060806  Amaranthus deflexus Lowell A. Ahart 2012-10-20 18516 Butte Ion[on?] the south side of the paved park road, about 30 yards east of Table 33, west of Cedar Grove, Lower Bidwell Park, Chico. 69 Comment
  RSA702776  Amaranthus deflexus L. Ahart 2004-9-28 11404 Butte On the south side of the Oroville Chico Highway, west of Butte Creek, about 1 1/8 miles southeast of the Midway, about 2 1/8 miles northeast of Durham, about 3 1/2 miles southeast of Chico 58 Comment
  CHSC21137  Amaranthus retroflexus M. S. Taylor 1975-10-3 930 Butte Along slough near bridge over river rd, ca. 10 mi w of Chico. 36 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
  CAS-BOT-BC55584  Ambrosia psilostachya Lowell Ahart 1982-10-11 3859 Butte Gray Lodge, south-west of Gridley 35 Comment
  RSA6525  Ammannia coccinea Jens Clausen 1932-9-16 658 Butte 20 miles south of Chico, between Richvale & Nelson Comment
  CHSC2811  Amsinckia intermedia David Prall 1965-3-14 3 Butte Along side of Neal Rd. 1 mile east of Highway 99E. 106 Comment
  JEPS115309  Amsinckia intermedia Lowell Ahart 2009-4-17 15545 Butte On the south slope of a ridge, about 150 yards west of Highway 32, near the south boundary, Upper Bidwell Park, about 5 miles (air) northeast of Chico 373 Comment
  SEINET10497092  Amsinckia intermedia Mary Susan Taylor 1974-3-5 Taylor 75 Butte Along Cohasset Road, N of Chico. Assoc iates: Amsinckia intermedia, Dodecatheon clevelandii var. patulum, Blennospermum nanum, Orthocarpus erianthus. Comment
  SEINET12326796  Amsinckia intermedia M. S. Taylor, Tharp, K. 1983-1 5240 Butte along small road off Stillson Canyon Rd, ca 3 mi SSE of Chico 152 Comment
  CHSC60662  Amsinckia lycopsoides Vernon H. Oswald 1993-4-24 5295 Butte Gray Lodge Wildlife Manegement Area, 0.1 mi N of Rutherford Rd in levee raod leading to Parking Lots 1, 2, and 3, ca. 0.5 mi E of Headquarters. 19 Comment
  UC172861  Amsinckia lycopsoides A. A. Heller 1913-3-9 10683 Butte hills 2 mi n Oroville Comment
  CHSC8166  Andropogon glomeratus var. scabriglumis K. Henegar 1969-5-15 61 Butte Upper Bidwell Park, on n side of road opposite Bear Hole. Comment
  UCD56079  Andropogon virginicus Eldon F. Azevedo 1952-10-8 s.n. Butte Oroville. Comment
  CAS-BOT-BC137802  Andropogon virginicus var. virginicus M. K. Bellue 1938-3-18 s.n. Butte Near Thermalito. Comment
  CHSC60957  Anisocarpus madioides Lowell Ahart 1993-6-16 6971 Butte South-west of the intersection of Black Bart Road and Forbestown Road, about 3 1/2 (air) miles south-west of Forbestown. 609 Comment
  CHSC51920  Antirrhinum vexillo-calyculatum subsp. intermedium L. P. Janeway 1987-5-20 2071 Butte Hwy 70 3.5 mi NE of Jarbo Gap. 594 Comment
  CHSC44364  Apocynum cannabinum Lowell Ahart 1988-6-29 6115 Butte Along Rockefeller Road, about 1/2 mile south of the Rockefeller School, about 2-1/2 miles southwest of Big Bald Rock. 762 Comment
  RSA725004  Apocynum cannabinum L. Ahart 2006-9-11 13272 Butte South edge of the North Fork of the Feather River, north side of highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 air miles northeast of Oroville. 432 Comment
  SD1683  Aquilegia formosa E. B. Copeland 1929-7-15 362 Butte Jonesville, in brush and open woods 1550 Comment
  CAS-BOT-BC392114  Aquilegia formosa Mrs. J. H. Morrison 1932-5-1 s.n. Butte Near Durham Comment
  CHSC29376  Arabidopsis thaliana R. A. Schlising; R. Banchero 1980-6-2 3622 Butte 10.3 mi n of jct Forest Ranch Road (which is just n of village of Forest Ranch), along Hwy 32. Comment
  JEPS119576  Arabidopsis thaliana Lowell Ahart 2012-4-17 17873 Butte About 200 yards southeast of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. Comment
  JEPS124181  Arabidopsis thaliana Lowell Ahart 2015-2-26 19940 Butte About 1/4 mile north of Miners Ranch Reservoir, about 4 miles east of Oroville. Comment
  CHSC28418  Aralia californica M. S. Taylor 1979-10-5 2227 Butte Along stream entering Paradise Lake on se side, ca 1/2 mi n of Coutolenc Rd., ca. 5 mi n of Magalia. 731 Comment
  CHSC90566  Arbutus menziesii Richard Steward 1988-4-21 5 Butte Ca. .6 mi ne of De Sabla General Store. 792 Comment
  SBBG50849  Arbutus menziesii D. B. Marcum 1969-4-12 38 Butte Yankee Hill, Rd 70 640 Comment
  CAS-BOT-BC407722  Arceuthobium abietinum E. B. Copeland 1930-7-28 414 Butte Jonesville 1550 Comment
  CHSC33970  Arceuthobium abietinum M. S. Taylor; L. Ahart 1981-8-15 4185 Butte N end of Snag Lake, e side of Humbug Rd, ca. 14 mi ne of Stirling City. 1737 Comment
  JEPS118642  Arceuthobium campylopodum B. Castro and L. P. Janeway 2002-7-7 1378 Butte High Cascade Range. Along logging spur road, 2.1 mi NE of Bald Mountain Lookout and 0.6 mi SW of Jones Meadow. Comment
  UC463034  Arceuthobium campylopodum E. B. Copeland 1931-8-5 Butte Jonesville 1500 Comment
  CAS-BOT-BC27258  Arctostaphylos laxiflora Amos Arthur Heller 1940-2-6 15493 Butte Neal Road near the junctin of the first road E of the Bille Road, old sawmill site. East of Paradise. Comment
  CHSC31916  Arctostaphylos manzanita subsp. manzanita M. S. Taylor; E. Pierce 1981-1-29 3374 Butte Cohasset Ridge SW of Cohasset Hwy, ca. 1 mi S of Cohasset. 60 Comment
  CHSC41220  Arctostaphylos manzanita subsp. manzanita J. D. Jokerst 1985-7-18 2515 Butte Canyon of Rock Cr. between creek and Cohasset Hwy, NW of Cohasset on lower canyon slope. Comment
  UC726684  Arctostaphylos mewukka A. A. Heller 1942-2-7 16363 Butte along Wagstaff Rd near junction with the Neal Road; Paradise Comment
  CHSC109113  Arctostaphylos mewukka subsp. mewukka Lowell Ahart 2012-1-12 17735 Butte Peter Ahart Ranch, about 1-1/2 miles north and 2-3/4 miles east of Honcut, about 12 miles southeast of Oroville. 45 Comment
  CAS-BOT-BC38558  Arctostaphylos mewukka subsp. truei John Thomas Howell 1976-4-2 51565 Butte About 2 mi. from Paradise on Skyway to Chico. 396 Comment
  LA42209  Arctostaphylos nevadensis E. B. Copeland; 1930-7-6 437 Butte above Jonesville 2050.0 Comment
  SD3597  Arctostaphylos nevadensis E. B. Copeland 1931-6-22 Butte Jonesville, on ridge east of the Summit. 2100 Comment
  CAS-BOT-BC46714  Arctostaphylos patula H. F. Copeland 1928-5-6 223 Butte Jonesville. 1524 Comment
  CAS-BOT-BC46715  Arctostaphylos patula A. A. Heller 1915-6-26 12035 Butte Summit of the Sierra Nevada above Jonesville. 2133 Comment
  SBBG60044  Arctostaphylos patula E. B. Copeland 1932-6-29 A 7 Butte The Summit, Jonesville Comment
  UC535024  Arctostaphylos patula H. F. Copeland 1932-6-29 A 7 Butte The Summit Jonesville Comment
  UCD51935  Arctostaphylos truei John Thomas Howell 1975-6-15 51110 Butte Skyway near Billie Road, Paradise, Butte County. Transition Zone. 609 Comment
  UCD51946  Arctostaphylos truei John Thomas Howell 1975-6-15 51090 Butte In Upper Sonoran Zone on volcanic rock, about 2 miles from Paradise on 'Skyway' to Chico, Butte County. 396 Comment
  UCD51952  Arctostaphylos truei John Thomas Howell 1975-6-15 51113 Butte Skyway and Montana Drive, Paradise, Butte County, Transition Zone. 609 Comment
  SEINET11989217  Arctostaphylos truei J. T. Howell 1975-1 51090 Butte about 2 mi from Paradise on Skyway to Chico 396 Comment
  SJSU10836  Arctostaphylos viscida L. J. Ericsen 1955-4-16 106 Butte between Paradise & Megalia 609 Comment
  SEINET10973472  Arctostaphylos viscida Mary Susan Taylor 1981-3-31 Taylor 3456 Butte T22N R4E ne sec 12. Pulga SW quad. N side of spur rd 1/4 mi w of its jct with Ponderosa Way (Rim Rd), ca. 5 air mi n of its jct with Hwy 70 at Jarbo Gap, 18 air mi ne of Oroville; 2600 ft. 792 Comment
  CAS-BOT-BC47374  Arctostaphylos viscida subsp. viscida John Thomas Howell 1975-6-15 51087 Butte about 2 miles from Paradise on Skyway to Chico 396 Comment
  CAS-BOT-BC47375  Arctostaphylos viscida subsp. viscida John Thomas Howell 1975-6-15 51088 Butte about 2 miles from Paradise on Skyway to Chico 396 Comment
  CAS-BOT-BC48282  Arctostaphylos viscida subsp. viscida Lowell Ahart 1975-4-2 s.n. Butte Pater Ahart Ranch, Honcut 48 Comment
  CAS-BOT-BC48292  Arctostaphylos viscida subsp. viscida John Thomas Howell; Lowell Ahart 1976-4-1 51540 Butte In foothill woodland south of Cherokee on road to Oregon City. Comment
  CHSC31919  Arctostaphylos viscida subsp. viscida M. S. Taylor; T. Devine, M. Merryman 1981-2-11 3376 Butte E side of Lumpkin Rd, ca. 300 ft N of Macabes Creek, ca. 2 mi N of jct of Lumpkin Rd and Oroville-Quincy Hwy (162), ca. 13 mi NE of Oroville. 457 Comment
  RSA13427  Arctostaphylos viscida subsp. viscida H. F. Copeland 1932-6-24 A 3 Butte Humboldt Grade, about 12 mils from Chico. Comment
  JEPS98293  Aristida dichotoma Lowell Ahart 2000-6-27 8519 Butte Big Bald Rock, about 3 miles (air) east of Madrone Lake, about 12 miles (air) northeast of Oroville. 993 Comment
  CHSC38786  Aristida oligantha Vernon Oswald 1983-7-28 934 Butte Upper Bidwell Park, Chico, near parking Area A on Upper Park Rd. 83 Comment
  UCD56476  Aristida oligantha Beecher Crampton 1963-9-9 6882 Butte 3.5 miles east of Honcut, La Porte Road. Comment
  UC176145  Aristolochia californica A. A. Heller 1913-3-9 10687 Butte hills 2 mi. n. of Oroville Comment
  UCD137812  Aristolochia californica Kathy Corson 1969-4-6 11 Butte Stillsen Canyon Creek bottom, past the garbage dump 9 miles east of Chico. Comment
  SEINET10475905  Aristolochia californica Mary Susan Taylor 1981-3-16 Taylor 3407 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
  CAS-BOT-BC295835  Arnica dealbata A. A. Heller 1913-6-7 10824 Butte West Branch of the North Fork of the Feather River near Stirling 914 Comment
  UC492750  Arnica mollis H. F. Copeland 1927-9-4 1122 Butte Jonesville 1524 Comment
  CDA10154  Artemisia douglasiana D. G. Kelch 2006-8-2 6 .351 Butte Along Butte Creek, north of Durham-Dayton Hwy. Comment
  CHSC11849  Artemisia douglasiana E. B. Copeland 1930-7-27 484 Butte Jonesville. 1550 Comment
  CHSC45634  Artemisia douglasiana Vernon Oswald 1985-8-4 1923 Butte Scotts John Rd. 2.7 mi N of Humboldt-Humbug connector road. 1920 Comment
  CHSC93176  Asclepias cordifolia L. P. Janeway 1994-6-6 4657 Butte Northern High Sierra Nevada. East end of Watson Ridge; along Road 21N25 about 0.5 mi north of Fall River and about 1.7 mi west of Kenebeck Ridge. Ridge top and road cutbank. 1158 Comment
  SEINET10961641  Asclepias eriocarpa R. Carter 1966-7-6 Carter 465 Butte 7 mi E of Oroville on E side of Feathervale, 0.23 mi S of intersection of Wyandotte-LaPorte Rds. 244 Comment
  UC878976  Asclepias eriocarpa A. A. Heller 1914-7-13 11573 Butte 10 mi e Oroville (Mt. Ida ranch) Comment
  SEINET10923199  Asclepias fascicularis R. Carter 1966-7-6 Carter 464 Butte 7 mi E of Oroville on NE corner of intersection of Miners Ranch Road and Mr. Ida Road 244 Comment
  CHSC66430  Asclepias speciosa Vernon H. Oswald; Lowell Ahart 1996-6-10 7749 Butte Sacramento National Wildlife Refuge, Llano Seco Unit. Near a U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. 28 Comment
  CAS-BOT-BC65914  Aspidotis densa John Thomas Howell 1962-6-16 37543 Butte Magalia 731 Comment
  CAS-BOT-BC65915  Aspidotis densa John Thomas Howell 1959-9-26 35093 Butte Pulga Bridge, N. Fk. Feather River 411 Comment
  POM193101  Aster alpigenus E. B. Copeland 1930-7-26 s.n. Butte Jonesville. 1550 Comment
  POM219492  Aster eatonii H. F. Copeland 1927-9-2 407 Butte Jonesville. Comment
  CHSC44493  Astragalus pauperculus Lowell Ahart 1988-5-12 5990 Butte Open pasture field, about 1/2 mile north-east of the Honcut Cemetery, Joie Osgood Ranch, about 3 1/2 miles east and 1 1/2 miles north of Honcut. 60 Comment
  UC625529  Astragalus pauperculus Frank W. Gould 1938-4-23 316 Butte two mi n Chico; n of Chico 60 Comment
  CAS-BOT-BC69540  Athyrium alpestre subsp. americanum V. Oswald; L. Ahart 1988-7-29 3651 Butte Ca. 5 mi. (air) se. of Jonesville on the ridge running eastwards from the peak of Snow Mtn. 2097 Comment
  CHSC37832  Athyrium distentifolium var. americanum R. Schlising; K. Tarp, J. F. Fuller 1982-7-18 4329 Butte N part of county, n of Philbrook Reservoir and se of Snow Mountain peak. On flanks of the mountain. 2057 Comment
  CAS-BOT-BC68686  Athyrium filix-femina var. californicum Lowell Ahart 1981-9-15 3153 Butte Sierra Nevada - One hald mile N of the Lost Creek Reservoir 1100 Comment
  CAS-BOT-BC68696  Athyrium filix-femina var. californicum Clarence R. Quick 1952-7-1 52 -122 Butte Sierra Nevada - Mill Creek Road between Feather River Highway and Coyote Gap Comment
  UCSB63847  Athyrium filix-femina var. cyclosorum Ahart, Lowell 1997-8-1 Butte On the east side of Little Kimshew Creek, where the basalt is eight sided, Snow Meadow, about 1/4 mile east of Table Mountain, about 8 miles (air) northeast of Stirling City; T25N, R5E, Section 33 1524 Comment
  POM143745  Athysanus pusillus C. F. Baker 1903-4-10 3027 Butte Chico. Comment
  SEINET10448433  Athysanus pusillus Mary Susan Taylor 1980-2-23 Taylor 2318 Butte T23N R4E central west border of sec 30. Magalia serpentine area near jct of the Skyway and Coutelenc Rd. 701 Comment
  JEPS90672  Atriplex cordulata Vernon H. Oswald 1993-7-29 5734 Butte w of Gridley (Gray Lodge Wildlife Management Area, w side of levee road and on s side of Rutherford Road, just e of headquarters complex, 1.75 mi w of Pennington Road); Gray Lodge Wildlife Management Area 19 Comment
  CHSC46262  Atriplex depressa Vernon Oswald 1989-4-20 3746 Butte Gray Lodge Wildlife Area, S side of Rutherford Rd at Parking Area 5. 19 Comment
  CAS-BOT-BC176602  Atriplex serenana var. serenana Lowell Ahart 1981-9-10 3145 Butte Gray Lodge, SW of Gridley 35 Comment
  JEPS90626  Atriplex subtilis Vernon H. Oswald 1993-7-29 5730 Butte w side of levee rd. ca. 100 ft s Parking Lot 5 on Rutherford Road (0.5 mi w of Pennington Rd., w of Gridley); Gray Lodge Wildlife Management Area 21 Comment
  JEPS90629  Atriplex subtilis Dean W. Taylor 1993-8-31 14076 Butte 120 m s Rutherford Road (and (as depicted on the refuge map) public shooting parking lot no. 5, (Pennington 7 1/2 USGS quadrangle, 1973 edition), ca. 1.5 mi e of refuge hq.); Sacramento Valley, Gray Lodge State Wildlife Area (Westside 21 Comment
  CAS-BOT-BC146179  Avena barbata Lowell Ahart 1979-5-12 s.n. Butte Honcut. Peter Ahart Ranch. Along North Honcut Creek. 50 Comment
  CHSC38789  Avena fatua Vernon Oswald 1983-3-14 186 Butte Upper Bidwell Park, Chico, on the north slope near rim rock on the level of the e end of Horseshoe L. 152 Comment
  CHSC39420  Avena fatua J. D. Jokerst 1984-4-7 1968 Butte Along the edge of Cherokee Rd. Top of North Table Mountain at the mesa's east edge. Comment
  JEPS115988  Avena fatua Lowell Ahart 2009-4-17 15553 Butte On the south slope of a ridge, about 150 yards west of Highway 32, near the south boundary, Upper Bidwell Park, about 5 miles (air) northeast of Chico 373 Comment
  RSA129570  Avena fatua C. G. Albertus 1933-6-6 21 Butte 1/4 mi. W. of Pentz [Rd.]; Chico 137 Comment
  JEPS124325  Azolla filiculoides Lowell Ahart 2015-10-20 20570 Butte About half way of and east of One Mile Pond, about 6 miles (air) east of Biggs. Comment
  UCSB61658  Azolla filiculoides Ahart, Lowell 1990-5-20 Butte In the borrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville 30 Comment
  CHSC46038  Azolla microphylla Lowell Ahart 1975-1-9 697 Butte On the west side of North Honcut Creek, about 2 1/2 miles north and 3 miles east of Honcut, from Honcut go east to Dunstone Drive and stop when you get to the 'S' curve, then go west about 1/4 mile to North Honcut Creek. 60 Comment
  CHSC66661  Baccharis douglasii Vernon H. Oswald 1996-7-17 8069 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. 28 Comment
  SFV3762  Balsamorhiza sagittata M. L. Vincent 1962-4-20 218 Butte Sierra Nevada Paradise. Stearns Road, 0.5 miles west of Harrison Road. Roadside. 530 Comment
  CHSC36683  Barbarea orthoceras R. E. Preston 1982-7-21 347 Butte At roadside; ca. 1/4 mi se of Philbrook Reservoir. 1706 Comment
  CHSC48314  Barbarea orthoceras Vernon Oswald 1984-5-9 1180 Butte Near Camp Lassen, Chico Meadows on Scout Rd ca. 1 mi n of Butte Meadows. 1292 Comment
  CHSC60577  Barbarea orthoceras Vernon H. Oswald; Lowell Ahart 1993-4-21 5294 Butte Along the Skyway ca. 1 mi S of De Sabla. 804 Comment
  CHSC77820  Bellardia trixago Lowell Ahart 2000-4-22 8329 Butte On the south side of Highway 162, about 1/4 mile west of Highway 99, about 10 miles sothwest of Oroville. 32 Comment
  UC854679  Berberis aquifolium var. dictyota A. A. Heller 1917-3-18 12669 Butte lower end of Iron Canyon (Chico Creek) Comment
  CHSC113531  Bergia texana Lowell Ahart 2014-9-23 19865 Butte On the southeast part of Horseshoe Lake, near the northwest corner of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. 88 Comment
  JEPS104405  Bergia texana Lowell Ahart 2003-6-23 10306 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. Comment
  CDA10506  Bidens frondosa L. Ahart 2006-9-11 13274 Butte South edge of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville. Comment
  CHSC100908  Bistorta bistortoides R. A. Schlising; Lawrence Janeway 1988-8-2 4657 Butte North of Lomo and west of Butte Meadows, along Hwy 32 at Soda Springs Campground. Comment
  UCD80035  Blennosperma nanum CNPS SN Foothill Team 2005-4-6 SNFN 0098 a Butte CDFG North Table Mountain Wildlife Area, Oroville. Stand is approximately 30 meters east of Coal Canyon rim. 366 Comment
  POM29973  Blennosperma nanum C. C. Bruce 1897-01 2074 Butte Foothills Comment
  CHSC38408  Boechera breweri subsp. shastaensis Vernon Oswald 1983-3-13 159 Butte Upper Bidwell Park, Chico, 20 ft s of Upper Park Rd. e of Devil's Kitchen (2.2 mi e of the power lines). On outcrops overlooking Chico Creek canyon. 222 Comment
  JEPS104354  Boechera breweri subsp. shastaensis Lowell Ahart 2003-4-10 10063 Butte On basalt cliffs, on the e rim of South Table Mountain, ca 2 1/2 mi (air) n of Oroville. 332 Comment
  CAS-BOT-BC14290  Boechera platysperma A. A. Heller 1917-7-29 12859 Butte Summit above Jonesville. 2133 Comment
  CHSC33633  Boechera platysperma R. E. Preston; R. A. Schlising, R. Banchero, D. Burk 1981-7-21 112 Butte N ridge of Snow Mtn, ca. 7.2 km se of Jonesville. 2050 Comment
  CHSC36678  Boechera platysperma R. E. Preston 1982-7-21 349 Butte Ca. 1 mi se of Philbrook Reservoir. 1972 Comment
  SEINET3356337 Image available Boisduvalia sparsiflora A. A. Heller 1914-7-24 11621 Butte Butte Meadows 1219 Comment
  RSA166310  Boisduvalia stricta D. M. Moore 1960-6-1 91 Butte U.S. 40A, 4.7 mi. S of S Oroville (Dahl s Motel) Comment
  UC1100844  Bolboschoenus fluviatilis Herbert L. Mason, Verne Grant 1946-8-14 13017 Butte canal near big pond on Sacramento Outing Club (Butte Sink); , on Sacramento Outing Club Comment
  UCD150349  Bolboschoenus fluviatilis E. Littrell 1972-4-27 s.n. Butte Gray Lodge Wildlife Management Area. Comment
  UC1100853  Bolboschoenus maritimus Herbert L. Mason 1945-9-19 12734 Butte nw Pennington (Gray Lodge Game Refuge); , nw of Pennington Comment
  UC1472738  Botrychium multifidum Mrs. Carlotta C. Hall 1914-7-30 9805 4a&b Butte Jonesville 1524 Comment
  CDA20151  Boykinia occidentalis B. Smith August 1996 s.n. Butte Plumas National Forest; 1.5 mi S of Feather Falls along Owl Creek. 0 Comment
  CDA1769  Brachypodium distachyon L. Ahart 2000-5-16 8359 Butte West of Larkin Road, about 1 1/4 miles south of the Oroville Airport. About 5 miles (air) southwest of Oroville. On the north side of the access road to the boat ramp at the Thermalito Afterbay. Comment
  UCD57008  Brachypodium distachyon G. L. Stebbins Jr. 1939-7-5 2894 Butte 3 miles east of Oroville. 152 Comment
  SEINET5541525  Brassica campestris H. S. Gentry, S. Koch 1962-1 19785 Butte Near Richvale. 53 Comment
  CAS-BOT-BC30307  Brassica nigra Lowell Ahart 1974-5-18 s.n. Butte About 3 miles north of Honcut. 150 Comment
  UCD114731  Brassica nigra L. Ahart 1982-5-29 3449 Butte N of Peter Ahart Ranch, ca. 2.5 mi ne of Honcut. Comment
  SEINET10971165  Brickellia californica Mary Susan Taylor 1979-9-28 Taylor 2197 Butte Butte County line at Hwy 70, between boundry and Arch Rock tunnel; granitic soils and dome outcrop. 488 Comment
  UCD57149  Briza maxima Beecher Crampton 1965-6-17 7385 Butte 2 miles northeast of Bangor, La Porte Road. Comment
  CHSC118032  Briza minor Daphne K. Christopher; Hannah Stevens, Lowell Ahart 2003-4-21 229 Butte Off Hwy 99. Ahart Family Ranch along boundary on access road and edge of field 41 Comment
  RSA32795  Brodiaea californica A. A. Heller 1938-5-22 15106 Butte Near the Chico Airport Comment
  CAS-BOT-BC482216  Brodiaea californica subsp. californica A. A. Heller 1938-5-22 15106 Butte Plentiful near Chico airport Comment
  SEINET10872217  Brodiaea elegans Lowell Ahart 1983-6-6 Ahart 4028 Butte Peter Ahart Ranch, ca. 2.5 mi ne of Honcut. Valley Grassland; 50 m. 50 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
  JEPS127076  Brodiaea elegans subsp. elegans Lowell Ahart 2016-5-24 20872 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 3/4 miles (air) northeast of Honcut. Comment
  POM169538  Brodiaea elegans subsp. elegans A. A. Heller, H. E. Brown 1902-5-8 5492 Butte Berry Canyon (near Clear Creek) Comment
  CAS-BOT-BC482196  Brodiaea elegans subsp. elegans Lowell Ahart 1983-6-6 4028 Butte Peter Ahart Ranch, about 2 miles north and 1/4 mile east of Honcut 50 Comment
  CAS-BOT-BC482199  Brodiaea elegans subsp. elegans A. A. Heller 1914-5-11 11385 Butte Hills 8 miles north of Oroville Comment
  SEINET3559684 Image available Brodiaea hyacinthina Lewis S. Rose 1933-5-27 33194 Butte Bangor. 267 Comment
  CHSC71203  Brodiaea minor Lowell Ahart 1988-6-9 7983 Butte West of Cherokee Road, about 50 feet southwest of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CHSC78345  Brodiaea minor Lowell Ahart 2000-6-17 8480 Butte About 1/4 mile northeast of Kunkle Reservoir, east of the Pentz Magalia Road, about 2 miles south of Paradise. 548 Comment
  JEPS93839  Brodiaea minor Lowell Ahart 1998-7-1 8026 Butte about 7 air mi n of Oroville (about 5/8 mi n of the cow chute along Cherokee Road, about 100 yards s of a east west fence, North Table Mountain); North Table Mountain, Cherokee Road 403 Comment
  UC203644  Brodiaea minor A. A. Heller 1914-4-24 11321 Butte about 5 mi sw Pentz Comment
  UC203651  Brodiaea minor A. A. Heller 1914-7-24 11619 Butte Butte Meadows Sierra Nevada, Butte Meadows 1219 Comment
  CAS-BOT-BC484505  Brodiaea minor A. A. Heller; H. E. Brown 1902-5-10 5524 Butte Berry Canyon near Clear Creek Comment
  SEINET10866714  Brodiaea minor A. Arthur Heller 1927-5-3 Heller 14364 Butte Stiff clay soil 10 miles north of Chico in a treeless region. The type was collected near Chico. 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
  CHSC112681  Brodiaea sierrae Lowell Ahart 2013-7-1 18812 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
  UCD60270  Bromus E. Wilson 1940-6-21 s.n. Butte De Sabla. Comment
  UC1530704  Bromus alopecuros Lowell Ahart 1985-5-9 4939 Butte about 1 mi n and 1/4 mi e of Honcut (about 12 mi s of Oroville, Peter Ahart Ranch); Peter Ahart Ranch 50 Comment
  CHSC34209  Bromus carinatus var. marginatus J. D. Jokerst 1981-8-1 1452 Butte N face of Humboldt Peak ca 200 feet NE of summit. Extreme N corner of Butte county. 2133 Comment
  CHSC31732  Bromus catharticus L. Ahart 1979-5-3 1855 Butte Peter Ahart Ranch, Honcut. 50 Comment
  JEPS88260  Bromus commutatus Vernon H. Oswald and Lowell Ahart 1996-5-27 7660 Butte U.S. Fish and Wildlife Service parcel between Seven Mile Lane and Sacramento River (sw corner of Tract 3.4, Sanctuary II, Sacramento R. National Wildlife Refuge, Llano Seco Unit); Sacramento River National Wildlife Refuge, Llano Seco Unit 32 Comment
  SEINET10868335  Bromus commutatus Lowell Ahart 1988-5-30 Ahart 6031 Butte Hairy Chess, On damp disturbed soil, near a seep, about 1/12 mile N of the brige across the North Fork of the Feather River, along Poe Power House Road, about 2 miles SE of Jarbo Gap. 338 Comment
  SEINET6778864  Bromus diandrus M. Maynarel 1975-5-15 Butte Chico, Abandoned field Comment
  CAS-BOT-BC155464  Bromus hordeaceus Javier Penalosa 1962-6-18 2464 Butte Near Confluence of French and Peavine Creeks. 609 Comment
  CHSC61532  Bromus hordeaceus Lowell Ahart 1993-6-20 7005 A Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  JEPS117608  Bromus hordeaceus Lowell Ahart 2010-6-12 16797 Butte Along the south side of a small stream, about 150 yards east of Ten Mile House Road, about 3/4 mile (air) west of Highway 32, about 9 miles (air) northeast of Chico 238 Comment
  CAS-BOT-BC162463  Bromus laevipes Lowell Ahart 1977-5-2 1470 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC25476  Bromus laevipes L. Ahart 1977-6-16 1412 Butte Along the banks of North Honcut Creek. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC87956  Bromus laevipes Lowell Ahart 2004-6-22 11109 Butte On the east margin of a gravel road, road leads to Butte Creek, south of Doe Mill Road, about 1/8 mile southwest of the bridge across Butte Creek, about 2 miles (air) southeast of Forest Ranch, about 5 miles (air) west of Stirling City. 692 Comment
  JEPS117882  Bromus madritensis subsp. madritensis L. P. Janeway 2008-4-2 9249 Butte East edge of City of Chico Cascade Range Foothills (slope on north side of Humboldt Road 2.9 km northeast of Bruce Road) 167 Comment
  RSA718786  Bromus orcuttianus L. P. Janeway 2006-6-27 8702 Butte Norther High Sierra Nevada. Along a major dirt road 2.6 km south of Stirling City towards West Branch Feather River crossing. Comment
  UCD59073  Bromus orcuttianus H. F. Copeland 1930-7-21 s.n. Butte Jonesville. By Butte Creek. 1524 Comment
  SEINET11688661  Bromus rubens J. M. Lund 1980-1 20 Butte 0.5 mi N of airport turn off, on Cohasette road, N of Chico 76 Comment
  CAS-BOT-BC161579  Bromus suksdorfii V. Oswald; L. Ahart 1988-7-26 3626 Butte Snow Mountain region located ca. 6 air miles southeast of Jonesville. 2042 Comment
  CHSC41431  Bromus tectorum Lowell Ahart 1986-5-20 5279 Butte Near the edge of the road that goes to the Forbestown Reservoir, about 1 mile south-west of the Forbestown Reservoir, about 3 1/2 miles north-east of Forbestown. 609 Comment
  SEINET10843220  Bromus villosus A. Arthur Heller 1914-4-11 Heller 11280 Butte Hills 8 miles north of Oroville. Comment
  CHSC25120  Calandrinia ciliata var. menziesii G. G. Poulsen Jr. 1971-4-13 9 Butte Ca 2 mi n. of Oregon City turn off on Cherokee Rd. Grows in clusters in open fields and in shaded areas. 426 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
  CHSC21073  Callitriche heterophylla var. bolanderi M. S. Taylor 1975-4-26 529 Butte In small pool on e side of Kunkle Reservoir, ca. 500 yds e of Pentz-Magalia Hwy, ca. 1 mi s of Paradise. Comment
  JEPS119795  Callitriche marginata Lowell Ahart 2012-5-4 17989 Butte About 1 1/4 miles northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  CHSC78134  Callitriche trochlearis Lowell Ahart 2000-5-21 8380 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
  CAS-BOT-BC80356  Calocedrus decurrens Lowell Ahart 1985-9-18 5168 Butte about 2 miles west of Sly Creek Reservoir, east of the intersection of Golden Trout Crossing road on Reville Ridge 1000 Comment
  CHSC27198  Calocedrus decurrens P. Moyer 1971-10-2 27 Butte N side Ed.-Psych. Bldg. On CSUC campus. 60 Comment
  CHSC77412  Calocedrus decurrens Laura Bogni 1997-3-25 30 Butte West side of Coutelenc Rd.; 1 mi. due W of Sawmill Peak; 1/2 mi. SE of Magalia Reservoir. Magalia grove. 701 Comment
  CHSC67726  Calochortus luteus James D. Jokerst 1979-5-9 224 Butte At junction of Skyway and Coutolenc Rd. Magalia serpentine. Comment
  CHSC79619  Calochortus luteus Leanna Brown; Shirley Innecken 1999-5-3 79 Butte Vista La Mesa Dr. 428 Comment
Read comments
Jul 24 2008
  CAS-BOT-BC491862  Calochortus luteus Lewis S. Rose 1945-5-12 45047 Butte Richardsons Springs 304 Comment
  CHSC24843  Calochortus monophyllus T. L. Reynolds 1976-4-23 55 Butte 0.3 mi ne of Covered Bridge, 7.2 mi ese of Chico. 121 Comment
  UC648384  Calochortus monophyllus Marion Ownbey and Ruth P. Ownbey 1938-7-13 1730 Butte 15 mi ne Chico Comment
  POM169425  Calochortus monophyllus Kate Conger 1907-1 s.n. Butte Brush Creek Comment
  CHSC44977  Calochortus tolmiei Pamela A. Mallen 1987-4-15 11 Butte On Bardees Bar Rd., ca. 4 mi ne of Big Bend Rd. and 0.5 mi w of Hwy 70, 18 mi n of Oroville. 499 Comment
  RSA4438  Caltha howellii E. B. Copeland 1930-06 639 Butte Jonesville. 1500 Comment
  JEPS117414  Caltha leptosepala var. biflora Lowell Ahart 2010-9-28 17266 Butte On the south edge of a 10 acre meadow, about 100 yards east of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir 1886 Comment
  CHSC25422  Calycadenia ciliosa M. Hayes; Warner 1977-9-6 54 Butte Upper Bidwell Park, ca. 1.8 mi from end of paved road (Wildwood Drive) across from Chico Municipal Golf Course, ca. 200 yds up SE facing slope of Big Chico Creek Canyon. 129 Comment
  UCD135720  Calycadenia fremontii Bruce G. Baldwin; Gerald D. Carr 1988-6-9 710 Butte ca. 1 mile south of Broyles Road, less than 1 mile west of State Highway 99. Comment
  CHSC71459  Calycadenia multiglandulosa Lowell Ahart 1998-7-19 8047 Butte Along Hurleton Swedes Flat Road, 1 1/2 miles (air) south of Hurleton, about 11 miles (air) southeast of Oroville. 487 Comment
  CAS-BOT-BC106076  Calycadenia oppositifolia David D. Keck 1930-7-25 975 Butte Hurleton, ten miles east of Oroville, on Forbestown Road, eastern Butte County. 487 Comment
  CHSC44955  Calycadenia oppositifolia Pauleen Broyles 1988-4-19 1107 Butte Lower Nance Canyon. 90 Comment
  CHSC45540  Calycadenia oppositifolia 1976-5-28 Butte PG and E power line right-of-way on rd to Miller's Pond, ca 0.5 mi W of Hwy 70 at Rockhouse; 0.5 mi S of Jarbo Gap. 655 Comment
  CHSC76828  Calycadenia oppositifolia L. P. Janeway 1999-11-15 6628 Butte Northern Sierra Nevada foothills. Between Nelson Bar Road and Lake Oroville, 0.25 mi north-northwest of Lime Saddle. 281 Comment
  CHSC86848  Calycadenia oppositifolia L. P. Janeway; Christine Hantelman 2003-7-10 7894 Butte Northern Sierra Nevada Foothills. Above western edge of Rich Gulch arm of West Branch Feather River arm of Lake Oroville; 895 m east of north end of West Branch Bridge (Hwy 70). 294 Comment
  POM298231  Calycadenia oppositifolia D. D. Keck 1933-5-31 2411 Butte 4.3 miles N of Chico on Richardson Springs Rd. Comment
  UC195401  Calycadenia oppositifolia A. A. Heller 1914-5-22 11426 Butte about 5 mi n of, on the Richardson Springs road Chico Comment
  SEINET10473676  Calycadenia oppositifolia Mary Susan Taylor 1979-6-12 Taylor 2294 Butte Magalia serpentine area down to Feather River. With J.D. Jokerst & L. Ahart. 671 Comment
  CAS-BOT-BC270881  Calycadenia spicata H. M. Hall 1930-8-10 12873 Butte Oroville Road, 9 miles from Chico 60 Comment
  CHSC117664  Calycanthus occidentalis Lowell Ahart 2016-8-30 21318 Butte In ravine on the north side of La Porte Road, about one mile west of Marysville Road, about 4 miles (air) southwest of Brownsville. 609 Comment
  CHSC94936  Calycanthus occidentalis K. Lang 2005-5-5 11 Butte Lime Saddle Boat Launch, near Oroville. 279 Comment
  SEINET10535836  Calycanthus occidentalis Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4104 Butte T21N R5E se/se sec 32. Ca. 1/8 mi e of jct of Oroville-Quincy Hwy & Ponderosa Way (Big Ridge Rd), ca. 15 mi ne of Oroville. Foothill Woodland. 500 Comment
  CHSC4592  Calyptridium monospermum C. Glascock 1965-6-12 435 Butte Moist rocky meadow ca. 34 mi. ne of Oroville on Old Quincy Road. Comment
  CHSC33652  Calystegia atriplicifolia subsp. buttensis R. A. Schlising 1975-6-20 3167 Butte N of Magalia and NE of De Sabla, just NE of junction of Skyway and Humbug/Humboldt Roads. 853 Comment
  JEPS110268  Calystegia atriplicifolia subsp. buttensis Lowell Ahart 2006-6-24 12858 Butte Disturbed area on the west side of the dirt road (Ponderosa Way), at an intersection, a gated road goes northwest, on Cohasset Ridge, about 3 3/4 miles (air) northeast of Cohasset 1127 Comment
  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
  SEINET10496583  Calystegia malacophylla Mary Susan Taylor 1978-7-19 Taylor 1769 Butte On E side of Upper Scotts John Road, ca. 3 mi N of its junction with Scotts John Road, ca. 7 mi E of Jonesville. 1890 Comment
  UCD126116  Calystegia malacophylla H. F. Copeland 1930-7-20 s.n. Butte Jonesville. Comment
  CHSC27311  Calystegia occidentalis subsp. occidentalis t. B. Devine 1976-7-31 344 Butte Beside Humbug Road ca 2 mi S of Nimshaw. 548 Comment
  CHSC443  Calystegia occidentalis subsp. occidentalis M. Roberson 1956-5-28 Butte Near Paradise along Skyway. 548 Comment
  CHSC27224  Camellia japonica P. Moyer 1971-2-1 71 Butte CSUC Campus. Within stand of camellias, n bank Chico Ck., n of Cafe Annex bridge. 60 Comment
  JEPS11847  Campanula prenanthoides Duncan Dunning 1921-8-25 Butte Merrimac Comment
  CHSC113302  Capsella bursa-pastoris Lowell Ahart 2014-4-9 19326 Butte Rice field road, near the pump, on the north side of Colusa Highway, about 4/10 of a mile east of the intersection of Pennington Road and Colusa Highway, about 5 1/2 miles west of Gridley. 22 Comment
  CHSC26512  Capsella bursa-pastoris P. Moyer 1972-3-4 109 Butte CSUC Campus. 1st and 2nd on Ivy, w side. 60 Comment
  CAS-BOT-BC37062  Capsella bursa-pastoris Lowell Ahart 1973-2-21 s.n. Butte Sutter Buttes Region. Peter Ahart Ranch, Honcut. 150 Comment
  CAS-BOT-BC37266  Cardamine breweri Lowell Ahart 1977-5-18 s.n. Butte Sutter Buttes Region. Near Golden Trout Crossing, South Fork of the Feather River. 700 Comment
  UC1609151  Cardamine californica Vernon H. Oswald and Lowell Ahart 1993-4-19 5280 Butte Rattlesnake Creek Trail on a serpentine outcrop between Jordan Hill Rd. and Sawmille Peak (Lookout ene of Magalia); Lookout, ene of Magalia 701 Comment
  CDA24758  Cardamine oligosperma L. Ahart 2005-4-2 11684 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. Comment
  CHSC113275  Cardamine oligosperma Lowell Ahart 2014-4-16 19361 Butte On the sides but near the bottom of a large canal, about 100 yards north of East Gridley Road, on the west side of the Feather River, about 2 miles east of Gridley. 29 Comment
  SEINET11983098  Cardamine oligosperma Unknown 1978-1 4 Butte ca 125 ft S of Rock Creek 213 Comment
  CAS-BOT-BC38061  Cardamine pachystigma Lowell Ahart 1983-3-28 3906 Butte About 0.5 mile southwest of the Forbestown Reservoir, along the road. About 4 miles northeast of Forbestown. 450 Comment
  CHSC28643  Cardamine pachystigma M. S. Taylor 1979-3-31 1970 Butte Lickey Ranch, along Ishi Trail Rd, ca. 1/2 mi ne of Concow Rd and Lake Concow, ca. 25 mi n of Oroville. 670 Comment
  JEPS105650  Cardamine pachystigma L. P. Janeway, Gavin Blosser, Adam Henderson 2003-3-19 7743 Butte Northern High Sierra Nevada. North-facing slope just above French Creek (Lake Oroville) about 300 m south-southeast of its confluence at North Fork Feather River 341 Comment
  CHSC33901  Cardamine pachystigma var. dissectifolia M. S. Taylor 1981-5-15 3752 Butte End of spur rd 22N84A, ridge sw of Stony Creek, ca. 2.5 air mi due e of Jarbo Gap on Feather River Hwy 70. 944 Comment
  POM95602  Cardamine pensylvanica C. C. Bruce 1897-05 2064 Butte Little Chico Comment
  CHSC88087  Carduus pycnocephalus R. D. Fischer 2004-4-18 172 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located along Lower Yahi Trail between Alligator Hole and Day Camp, 75 ft. w. Carex barbarae trail sign. UTM: 10606018E 4403002N. 95 Comment
  CHSC106229  Carduus pycnocephalus subsp. pycnocephalus L. P. Janeway; B. Castro 2010-5-23 9976 Butte Cascade Range Foothills. Upper Bidwell Park, Chico; north side of Big Chico Creek, along Yahi Trail about 450 m west of Day Camp. 90 Comment
  UC8055  Carex W. H. Brewer 1470 Butte near Chico Comment
  CHSC45073  Carex abrupta Vernon Oswald 1987-7-13 3112 Butte Near Summit Lake on the n side of Snow Mt, ca. 4 mi (air) se of Jonesville. At the turn-around at the end of the spur road on the n side of the lake. 1901 Comment
  CAS-BOT-BC17810  Carex amplifolia Lowell Ahart 1981-9-21 3195 Butte Sierra Nevada. Along French Creek. 1300 Comment
  JEPS94568  Carex amplifolia Lowell Ahart 1997-7-11 7749 Butte se Cold Creek (along small stream from springs, n of dirt road, about 2 air mi sw of Bald Mt., about 9 mi by road e (or about 2 air mi ne) of Stirling City) 1219 Comment
  CHSC51503  Carex angustata S. C. Morey 1983-7-25 626 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  JEPS117596  Carex angustata Lowell Ahart 2010-9-28 17261 Butte West edge of a 10 acre meadow, about 50 yards east of the poor dirt road, about 20 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir 1886 Comment
  JEPS121965  Carex angustata Lowell Ahart 2014-7-7 19579 Butte North of the bog, Coon Hollow, about 2 miles (air) north of Philbrook Reservoir. Comment
  JEPS121995  Carex angustata Lowell Ahart 2014-7-13 19643 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  CHSC85920  Carex aquatilis var. aquatilis L. P. Janeway; Gavin Blosser, Paul Kirk 2003-3-27 7748 Butte Northern Sierra Nevada Foothills. At high water line of Middle Fork Feather River arm of Lake Oroville, at the mouth of Syca-more Creek; 3.1 km north-northeast of the Bidwell Bar Bridge. 274 Comment
  CAS-BOT-BC18054  Carex athrostachya E. B. Copeland 1928-7-28 607 Butte Jonesville. 1700 Comment
  CAS-BOT-BC18055  Carex athrostachya H. F. Copeland 1928-8-20 1063 Butte Jonesville. Comment
  SEINET10585654  Carex aurea Edwin B. Copel 1930-6-23 Copeland 608 Butte Jonesville. In wet meadows. 1500 Comment
  SEINET3128047  Carex barbarae L. S. Rose 1939-6-5 39199 Butte Honcut 30 Comment
  CAS-BOT-BC422329  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 Reservoir, northern Sierra Nevada Highlands (n SNH) 1040 Comment
  JEPS121376 Image available Carex cyrtostachya P. F. Zika, B. Wilson, L. Ahart, L. Janeway 2011-8-5 25715 Butte Forest Road 20N03 (Moreville Ridge Road), 2 air miles SE of Sugar Pine Point, Pinkard Creek drainage, W northern Sierra Nevada Highlands (n SNH). Comment
  SEINET12649319 Image available Carex cyrtostachya Peter F. Zika 2011-1 25536 Butte 1040 Comment
  UCR246357  Carex cyrtostachya Peter F. Zika 2011-7-6 25536 Butte Northern Sierra Nevada Highlands (n SNH), Pinkard Creek, below Mooreville Ridge Road, 1.2 road miles north of dam on Lost Creek Reservoir 1040 Comment
  CHSC65784  Carex densa Vernon H. Oswald 1996-4-10 7346 Butte Sacramento River National Wildlift Refuge, Llano Seco Unit. U.S. Fish and Wildlife Services parcel between 7 Mile Lane and the Sacramento River. In a shallow roadside ditch on the S side of the ranch road at the N end of Tract 7.2, Sanctuary 1. Sacramento Valley. 33 Comment
  CDA33058  Carex densa L. P. Janeway 1996-5-27 4984 Butte South side of Lunt Road, 300 ft east of Nelson Bar Road. Between Lunt Road and a branch of Hodapp Creek Comment
  UCD169355  Carex divulsa subsp. divulsa Lowell Ahart 2012-5-25 18113 Butte Northwest of the intersection of W. Frances Willard Avenue and Arcadian Avenue, one block south of Chico High School. 59 Comment
  CAS-BOT-BC75503  Carex echinata var. ormantha F. N. Bassett 1923-6-21 s.n. Butte Jonesville via Butte Meadows. Comment
  CHSC43951  Carex feta Vernon Oswald 1988-4-18 3277 Butte Harter's Cherokee Ranch located on the w side of Hwy 99 between Hwy 149 and Dry Creek. Marshy place along the edge of Dry Creek ca. 0.25 mi w of Hwy 99. 51 Comment
  SEINET10650513  Carex feta Lowell Ahart 1987-5-6 Ahart 5544 Butte On damp to dry sand, along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  SEINET8067785 Image available Carex fracta L. Janeway, Gog, L 2008-1 3188 Butte Near Cornelia Lott Sank Memorial Spring. Comment
  UC532225  Carex fracta H. F. Copeland 1930-7-21 1367 Butte Jonesville 1524 Comment
  UCD140345  Carex fracta L. P. Janeway; R. A. Schlising, B. Castro, P. Broyles 1987-7-19 2502 Butte Coon Hollow, 1.0 mile SE of the Humbug Summit Road. 1661 Comment
  CHSC45237  Carex geyeri L. P. Janeway; R. A. Schlising, B. Castro, Pauleen Broyles 1987-7-19 2493 Butte Near Humbug Summit Rd ca 5 1/2 mi N of Inskip, at the Cornelia Lott Sank Memorial Spring. 1539 Comment
Read comments
Nov 14 2011
  CHSC55428  Carex gracilior L. P. Janeway 1991-4-30 3917 Butte At the head of Spring Hollow, 2 mi E of confluence of South and North Forks Feather River (under Lake Oroville). 350 Comment
  JEPS113289  Carex gracilior Lowell Ahart 2007-4-16 13675 Butte On the west side fo North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 2 2/3 miles east of Honcut, about 12 miles southeast of Oroville 52 Comment
  SEINET7560148 Image available Carex gracilior L. P. Janeway, Gavin Blosser, Adam Henderson 2003-4-10 7755 Butte Oroville Dam Quad 7.5' quad. Northern High Sierra Nevada. Near western end of peninsula between Middle and South Forks Feather River arms of Lake Oroville, 2.1 km east of the Bidwell Bar Bridge, next to Craig Saddle Boat-in Campground. 290 Comment
  CAS-BOT-BC28376  Carex gracilior A. A. Heller 1929-5-1 14853 Butte Osage Avenue, Chico-Hamilton City road. Comment
  CAS-BOT-BC146661  Carex hirtissima Lewis S. Rose 1937-6-10 37375 Butte Forbestown 838 Comment
  CHSC47058  Carex hirtissima L. P. Janeway 1989-5-17 3241 Butte Drying wet area along Forbestown Rd 9.2 mi E of Oroville-Quincy Hwy, and 0.1 mi W of Lower Forbestown Rd. 798 Comment
  RSA0037178  Carex hoodii Lowell A. Ahart 2010-9-21 17201 Butte About 50 yards east of the poor dirt road, about 100 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1917 Comment
  SEINET4286140 Image available Carex infirminervia L. Janeway, Gog, L 2008-1 3193 B Butte Just east of Philbrook Resevoir. Comment
  CHSC113460  Carex integra Lowell Ahart 2014-7-7 19592 Butte Disturbed area on the south side of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1664 Comment
  CHSC52910  Carex integra L. P. Janeway 1987-7-5 2459 Butte Meadow near Dresser Camp, 3.0 mi N of Jones Meadow along road to Philbrook Reservoir. 1889 Comment
  JEPS121954  Carex integra Lowell Ahart 2014-7-7 19591 Butte On the south side of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  CAS-BOT-BC7557  Carex integra L. P. Janeway; R. A. Schlising 1988-7-22 3044 Butte Just below saddle between Coon Hollow and Chips Creek. West facing rocky outcrop near dry minor drainage. 1889 Comment
  JEPS121019  Carex inversa Peter F. Zika 2010-5-16 24827 Butte Baldwin Avenue near Spencer Avenue, Oroville Comment
  CAS-BOT-BC17169  Carex jonesii V. Oswald; Lowell Ahart 1988-6-17 3404 Butte Pinkard Creek ca. 1.5 mi. N of Lost Creek Reservoir 1066 Comment
  JEPS105629  Carex jonesii L. P. Janeway 2003-7-13 7900 Butte High Cascade Range. Meadow along southeast side of Humbug Summit Road, at the Cornelia Lott Sank Memorial Spring 1519 Comment
  SEINET4285869 Image available Carex jonesii L. Janeway, Gog, L 2008-1 3186 B Butte Near Cornelia Lott Sank Memorial Spring. Comment
  SEINET7563140 Image available Carex jonesii L. P. Janeway 2003-7-13 7900 Butte High Cascade Range, meadow along southeast side of Humbug Summit Road, at the Cornelia Lott Sank Memorial Spring. Butte Meadows 7.5' Quad. 1519 Comment
  CHSC42690  Carex laeviculmis L. P. Janeway 1987-6-27 2342 Butte Along Little Kimshew Cr 0.7 mi north of the Concow Rd. 1508 Comment
  CHSC43884  Carex laeviculmis L. P. Janeway 1987-6-26 2295 Butte At Rag Dump. Near Fall Creek. 1173 Comment
  SEINET4110849  Carex laeviculmis D. W. Taylor 2006-1 19610 Butte Keyser Creek; West Branch Feather River watershed. 1524 Comment
  CAS-BOT-BC31122  Carex lemmonii Herbert Faulkner Copeland 1932-7-17 s.n. Butte Jonesville. Comment
  CHSC113960  Carex lemmonii Lowell Ahart 2014-7-16 19676 Butte North part of a large wet meadow (some bog), about 50 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC42820  Carex lemmonii L. P. Janeway 1987-7-5 2449 Butte 0.4 mi E on a spur rd from the Concow Rd, which is 1.0 mi SW of Jones Mdw. 1798 Comment
  CHSC45081  Carex lemmonii V. Oswald; L. Ahart 1988-6-17 3403 Butte Pinkard Creek ca. 1.5 mi n of Lost Creek Reservoir. 1066 Comment
  CAS-BOT-BC32158  Carex multicaulis L. P. Janeway; Robert A. Schlising; B. Castro; Pauleen Broyles 1987-7-19 2493 Butte Butte Meadows quad. Near Humbug summit Rd ca 5.5 mi N of Inskip, 1539 Comment
  CHSC43876  Carex multicaulis L. P. Janeway; C. A. Janeway 1986-8-31 1802 Butte South side of hwy 32, 19 mi E of hwy 99; near Platte Mtn Lookout CDF fire station. 1066 Comment
  CHSC61219  Carex nudata Lowell Ahart 1993-4-8 6932 Butte On the banks and sides of a deep almost dry ditch, on the south side of the Biggs Princeton Road, about 1 1/4 miles west of Biggs. 30 Comment
  CHSC52232  Carex pachystachya L. P. Janeway 1987-6-20 2254 Butte South Fork Feather River at crossing of road from Lumpkin Ridge to Mooreville Ridge, 3.3 mi from the Feather Falls-Lumpkin Ridge Road. 975 Comment
  SEINET8989730 Image available Carex pachystachya Unknown 2006-1 12980 Butte About 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jones- ville, about 5 miles (air) northeast of Butte Meadows.Yellow Pine Forest. Comment
  CHSC102840  Carex praegracilis Lowell Ahart 2009-6-3 15824 Butte On the east side of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 236 Comment
  CHSC68376  Carex praegracilis L. P. Janeway 1996-5-27 4982 Butte South side of Lunt Road, 300 ft east of Nelson Bar Road. Between Lunt Road and a branch of Hodapp Creek. 457 Comment
  UCSB63750  Carex praegracilis Janeway, L. 1996-5-27 Butte Cherokee quad.; T21N, R4E, NW1/4 of NW1/4 of sec. 4; south side of Lunt Road; 300 ft. east of Nelson Bar Road; between Lunt Road and a branch of Hodapp Creek 457 Comment
  SEINET4289482 Image available Carex simulata L. Janeway, Gog, L 2008-1 3198 B Butte Pat's Meadow. Along Butte Creek, 0.6 mi. W of Cherry Creek Campground. Comment
  CHSC44108  Carex stipata var. stipata L. P. Janeway 1988-7-2 2953 Butte Marshy mdw at upper reach of Brush Cr, ca 1.5 mi S of 'town' of Brush Cr. 952 Comment
  CHSC76324  Carex subfusca G. F. Hrusa; T. D. Wilfred 1997-5-8 13759 Butte Northern California, Sierra Nevada. SE-facing serpentine slope above Little Butte Creek, N of Magalia, above Magalia Res. Immed. E of Holmwood Drive. [Original Lat./Long. on label is '39 51 N; 121 34 W']. 720 Comment
  SEINET4292177 Image available Carex subfusca Unknown 1995-1 4861 Butte 0.8 mi northwest of Oak Point; 0.8 mi east of Transfer Ridge; east side of Breakneck Canyon 1.5 mi north of Kimshew Creek; along Concow Road 8.2 mi east of West Branch Featheriver. Comment
  UCD141166  Carex subfusca L. P. Janeway 1986-8-31 1809 Butte along edge of Philbrook Road 2 miles west of Philbrook Dam. 1569 Comment
  JEPS117914  Carex whitneyi L. P. Janeway & Linus Gog 2008-7-19 9443 Butte North sid of Scotts John Creek at crossing of Road 26N27 (the connector between Humboldt Road and Humbug Summit Road). High Cascade Range 1740 Comment
  CDA13904  Carex xerophila G. F. Hrusa, T. D. Wilfred 1997-5-8 13761 Butte Sierra Nevada; Above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. Comment
  CHSC75551  Carex xerophila G. F. Hrusa; T. D. Wilfred 1997-5-8 13761 Butte Sierra Nevada. Near summit of slope facing SSE above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. [Lat./Long. on label is '39 51 N, 121 34 W']. 750 Comment
  CHSC109660  Carya glabra Lowell Ahart; Susan Bazell, Josephine Guardino, Wes Dempsey 2012-7-5 18275 Butte Path in redwood grove north of the Deer Pen, near Table 9, Lower Bidwell Park, Chlico. 71 Comment
  POM15992  Castilleja affinis A. A. Heller, H. E. Brown 1902-5-6 5467 Butte Berry Canyon (near Clear Creek). Comment
  CAS-BOT-BC249113  Castilleja affinis Mrs. J. H. Morrison 1932-4-3 s.n. Butte Durham Comment
  CHSC111969  Castilleja affinis subsp. affinis Lowell Ahart 2012-6-2 18127 Butte Along the sides of Truex Road, west of the intersection of Truex Road and Trevor Road, about 1/8 mile northwest of the West Branch Bridge across Lake Oroville. 286 Comment
  CAS-BOT-BC249588  Castilleja applegatei subsp. pinetorum Mrs. Eva Pattee 1923-5-15 s.n. Butte Shady Rest near Cresta Comment
  CDA13899  Castilleja applegatei subsp. pinetorum G. F. Hrusa, T. D. Wilfred 1997-5-8 13756 Butte Sierra Nevada; on above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. Comment
  CHSC11899  Castilleja applegatei subsp. pinetorum E. B. Copeland 1930-7-12 466 Butte Jonesville. 1550 Comment
  JEPS115589  Castilleja applegatei subsp. pinetorum Lowell Ahart 2009-4-22 15594 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
  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
  SEINET10549333  Castilleja applegatei var. fragilis Mary Susan Taylor 1978-7-19 Taylor 1776 Butte On E side of Upper Scotts John Road, ca. 2 mi N of its junction with Scotts John Road, ca. 6 mi NE of Jonesville. 1890 Comment
  CAS-BOT-BC255460  Castilleja applegatei var. pinetorum A. A. Heller 1914-8-6 11646 Butte Edge of forest about Chico Meadows 1219 Comment
  UC492741  Castilleja arachnoidea H. F. Copeland 1932-8-24 Butte just above Butte Creek meadows (to the crest of w wall of Butte Creek drainage basin); Jonesville, Butte Creek Comment
  CHSC43536  Castilleja attenuata Lowell Ahart 1979-4-17 1827 Butte North of Honcut Creek, about 1/2 mile north of Avocado Avenue and near bridge across North Honcut Creek, about 3 miles north-west of Bangor. 91 Comment
  CHSC90167  Castilleja attenuata J. Lund 1980-4-19 Butte On a trail leading to the falls above Richardson Springs, northeast of Chico. On hillside. 121 Comment
  UCD122348  Castilleja campestris R. N. Raynor; H. A. Hannesson 1941-5-9 s.n. Butte 4 miles W. of Oroville. Comment
  CHSC11343  Castilleja campestris subsp. campestris Lowell Ahart 1970-4-23 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC3657  Castilleja exserta Robert D. Briggs 1966-4-12 R- 117 Butte 3 miles south of downtown Chico. Comment
  CHSC90141  Castilleja exserta subsp. exserta Dennis Chambers 1981-4-24 16 Butte Cal State Chico Range approximately 1.7 mi north on Meridian Road off of Hwy 99, east 0.7 mi on north side of road. 65 Comment
  CHSC43539  Castilleja lacera Lowell Ahart 1973-4-15 195 Butte Along the edge of Swedes Flat Road, north-east of Bangor. 304 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
  JEPS119798  Castilleja lacera Lowell Ahart 2012-5-20 18100 Butte On the north side of the Humboldt Trail, about 50 yards northwest of the poor dirt road south of Highway 32, southeast part of Upper Bidwell Park, northeast of Chico. Comment
  JEPS124106  Castilleja lacera Lowell Ahart 2015-5-27 20193 Butte About 100 yards south of the intersection of Forbestown Road and Black Bart Road, about 3 miles (air) southwest of Forbestown, about 11 miles (air) east of Oroville. Comment
  JEPS4518  Castilleja lacera Rimo Bacigalupi and L. R. Heckard 1952-6-20 3754 Butte 3.0 mi e Hurlebut (along road between Hurlebut and Forbestown) 762 Comment
  CHSC115280  Castilleja pruinosa Lowell Ahart 2015-4-30 20119 Butte About 1/4 mile south of Forbestown Reservoir Road, about 2 1/2 miles (air) northeast of Forbestown. 890 Comment
  CAS-BOT-BC40504  Caulanthus lasiophyllus Lowell Ahart 1974-4-11 s.n. Butte Sierra Nevada. Honcut. 45 Comment
  CAS-BOT-BC49257  Ceanothus cuneatus Lewis S. Rose 1945-5-12 45024 Butte Richardson Springs 304 Comment
  SEINET10493633  Ceanothus cuneatus Mary Susan Taylor 1974-3-19 Taylor 87 Butte Along Butte Creek at Honey Run Covered Bridge, ca. 10 mi E of Chico. Comment
  CHSC36071  Ceanothus diversifolius R. A. Schlising; J. D. Jokerst 1982-6-6 4288 Butte Along Concow Road, n of Concow Reservoir, near Flea Mt. 1097 Comment
  CHSC115316  Ceanothus integerrimus var. macrothyrsus Lowell Ahart 2015-4-18 20054 Butte On the east side of the road to the Forbestown Reservoir, about 1/4 mile southwest of the Forbestown Reservoir, about 3 1/2 miles (air) northeast of Forbestown. 573 Comment
  SEINET5543271  Ceanothus integerrimus var. macrothyrsus H. S. Gentry, S. Koch 1962-1 19762 Butte Cohasset. 914 Comment
  CAS-BOT-BC51730  Ceanothus lemmonii A. A. Heller 1914-5-18 11371 Butte Forest Ranch, West slope of the Sierra near Forest Ranch 822 Comment
  RSA19310  Ceanothus lemmonii L. S. Rose 1937-6-10 37377 Butte Forbestown. 838 Comment
  CAS-BOT-BC83773  Ceanothus prostratus D. O. Burge 2007-5-11 921 a Butte East shore of Lake de Sabla 850 Comment
  CHSC39798  Ceanothus prostratus Eloise Gallatin 1935-5-4 Butte Doe Mill Mine Road. Comment
  RSA481917  Ceanothus prostratus Aaron Liston 1988-3-15 6972 Butte East of Cohasset, Ponderosa Way 500 Comment
  SEINET194924  Ceanothus prostratus A. A. Heller 1941-6-22 16179 Butte Cohasset Comment
  SBBG128464  Celtis australis L. Ahart, L. Hanson, K. LeCoq, J. Guardino 2012-4-27 17910 Butte N side of Centennial Avenue, Lower Bidwell Park; Chico 80 Comment
  JEPS117916  Celtis laevigata L. P. Janeway 2008-10-8 9603 Butte Upper Bidwell Park, Chico Cascade Range Foothills (north side of Big Chico Creek 455 m west of Day Camp) 91 Comment
  CDA18839  Centaurea diffusa M. Stewart, Riley, Rick Keck 1997-8-12 PDR 1145796 Butte along N/S Humboldt Rd., 1.2 miles west of USFS CDF fire station, Butte Meadows. 0 Comment
  CDA7258  Centaurea maculosa W. Gilbert, R. Dodd 1970-7-22 Butte North side of Highway 32 west of California Forestry Station, Forest Ranch, northeast of Chico. 0 Comment
  CHSC37382  Centaurea solstitialis R. A. Schlising 1980-8-3 3962 Butte Richvale Vernal Pools, 1/4 mi s of jct Hwy 162 to Oroville and Hwy 99, along latter and across from Thermalito Afterbay. Comment
  JEPS115353  Centaurea solstitialis Lowell Ahart 2009-7-3 15984 Butte 30 yards west of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 30 yards east of Cedar Grove parking area, Lower Bidwell park, Chico 67 Comment
  JEPS124130  Centaurea stoebe subsp. micranthos Lowell Ahart 2015-9-8 20533 Butte About one mile northeast of the bridge across Fall River, about 8 miles (air) northeast of the school in Feather Falls. Comment
  SEINET10454833  Centaurium floribundum Mary Susan Taylor 1979-10-13 Taylor 2271 Butte T23N R4E sec 29. Along creek on Jordan Hill Road (Ponderosa Way on some maps), ca. 10.7 mi N of its jct with Concow Road, ca. 2 mi NE of Magalia. With Jim Jokerst. 853 Comment
  JEPS117547  Centaurium muehlenbergii Lowell Ahart 2010-6-20 16828 Butte About 1/4 mile north of Cox Lane, about 1 1/2 miles east of Palermo Honcut Highway, Guidci Ranch, about 7 1/2 miles (air) southeast of Oroville 59 Comment
  CAS-BOT-BC288528  Centromadia fitchii A. A. Heller 1913-9-16 11136 Butte Hills near Big Chico Creek, E of Chico Comment
  CHSC37398  Centromadia fitchii R. A. Schlising 1980-8-31 3968 Butte Richvale Vernal Pools, 1/4 mi s of jct Hwy 162 to Oroville and Hwy 99, along latter and across from Thermalito Afterbay. Throughout the area. Comment
  UCD130186  Centromadia fitchii W. R. Powell 1968-11-12 1613 Butte Ellis Ranch, 200 yards north of La Porte Road, 4 miles southwest of Bangor. 91 Comment
  SFV3982  Centromadia pungens M. L. Vincent 1960-9-8 53 Butte Sierra Nevada On bluff overlooking Butte Creek Canyon on the road (Skyway) to Chico from Paradise. 215 Comment
  CAS-BOT-BC222892  Cephalanthus occidentalis Lowell Ahart 1973-8-13 s.n. Butte Peter Ahart Ranch, Honcut 150 Comment
  RSA0035326  Cephalanthus occidentalis Lowell Ahart 2012-7-5 18278 Butte On the south edge of Big Chico Creek, at Table 11, east of the Deer Pen, Lower Bidwell Park, Chico. 74 Comment
  JEPS108153  Cerastium arvense L. P. Janeway, J. Tuitele-Lewis, S. Mackey Hillaire, M. Brown 2005-5-9 8382 Butte Northern High Sierra Nevada. Plumas National Forest; Ridge on southwest side of Rim Road (Ponderosa Way) 0.9 km southeast of junction with Concow Road; north end of Rocky Ridge 991 Comment
  CHSC115479  Cerastium glomeratum L. P. Janeway; Emily Meigs Doe 2015-4-22 11667 Butte Northern High Sierra Nevada. Plumas National Forest; southwest side of Old Forbestown Road, 0.8 road-km north of Forbestown Road and New York Flat Road. 855 Comment
  CHSC46350  Cerastium glomeratum Lowell Ahart 1989-5-23 6243 Butte Along the edge of a new subdivision road, 1/2 mile east of Dunstone Drive, about 1/2 mile north of Bangor Park Road, west of Bangor. 76 Comment
  CAS-BOT-BC388255  Cerastium glomeratum A. A. Heller 1915-5-28 11915 Butte Near Cohasset Comment
  CAS-BOT-BC388266  Cerastium glomeratum Lowell Ahart 1980-5-4 2181 Butte Thermalito 65 Comment
  SD234126  Cercis occidentalis Virginia Pinkus Ryder 1965-4-3 350 Butte Paradise 456 Comment
  UCSB63611  Cercis occidentalis Hardin, Mary 1986-4-18 Butte Ca. 0.5 mi. ESE of Cohasset Hwy.; 9 mi. NNE of Chico 548 Comment
  CAS-BOT-BC137003  Cercocarpus betuloides var. betuloides Lowell Ahart 1987-7-3 5748 Butte Along the edge of Poe Power House Road, about 1 mile north-west of the Poe Power House, about 1 mile south-east of Jarbo Gap 548 Comment
  CAS-BOT-BC277629  Chaenactis glabriuscula var. megacephala Mrs. C. C. Bruce 1897-4-1 1988 Butte Forest Ranch Comment
  CHSC86856  Chamaebatia foliolosa L. P. Janeway; Gavin Blosser 2003-9-3 7973 Butte Northern High Sierra Nevada. Along southwest edge of Ponderosa Reservoir 180 m south of Ponderosa Dam (South Fork Feather River). 299 Comment
  CHSC102521  Chamaesyce maculata Lowell Ahart 2009-10-8 16414 Butte South of a large ditch, on the north side of the road, about 20 yards northeast of Parking Lot 12, Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley. 19 Comment
  CHSC31695  Chamaesyce maculata L. Ahart 1973-6-28 258 Butte Near a creek. Peter Ahart Ranch, Honcut. 45 Comment
  POM215884  Chamaesyce maculata Willis H. Wheeler 1935-10-24 296 Butte Foreign Plant Introduction Sta., Chico. 76 Comment
  CHSC38441  Chamaesyce ocellata Vernon Oswald 1983-7-22 900 Butte Upper Bidwell Park, Chico, on the edge of Upper Park Rd. near the w entrance to Parking Area K (Bare Hole). 128 Comment
  CHSC113526  Chamaesyce ocellata subsp. ocellata Lowell Ahart 2014-9-23 19878 Butte About 30 yards northeast of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. 88 Comment
  CHSC83024  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2002-10-17 9995 Butte On the hills below the high water line of Lake Oroville, about 1 1/2 miles south of Highway 162 (Oroville Quincy Highway), about 3 miles (air) northeast of Oroville Dam. 227 Comment
  SEINET10966199  Cheilanthes siliquosa Mary Susan Taylor 1981-3-31 Taylor 3454 Butte T22N R4E ne sec 12. Pulga SW quad. N side of spur rd 1/4 mi w of its jct with Ponderosa Way (Rim Rd), ca. 5 air mi n of its jct with Hwy 70 at Jarbo Gap, 18 air mi ne of Oroville; 2600 ft. 792 Comment
  UC1191352  Chenopodium ambrosioides Herbert L. Mason and Verne Grant 1946-8-14 13026 Butte Sacramento Outing Club Butte Sink (canal near big pond) Comment
  CHSC69680  Chenopodium pratericola Vernon Oswald 1987-6-15 3002 Butte Butte Creek Reserve on the n side of Butte Creek, ne of the Skyway. 76 Comment
  RSA0058878  Chenopodium strictum var. glaucophyllum Lowell A. Ahart 2008-7-23 15147 Butte On the north edge of the South Fork of the Feather River, about 10 yards east of where Sucker Creek enters the South Fork of the Feather River, below the high water line of Lake Oroville, about 1/4 mile west of the Ponderosa Dam. 258 Comment
  UC1586525  Chenopodium vulvaria Lowell Ahart 1991-8-17 6703 Butte Durham Elementary School Durham (native plant garden) 54 Comment
  CHSC11806  Chimaphila menziesii E. B. Copeland 1930-7-27 433 Butte Jonesville. 1600 Comment
  JEPS87387  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
  CAS-BOT-BC451484  Chimaphila umbellata E. B. Copeland 1929-7-1 s.n. Butte Jonesville, along Butte Creek 1500 Comment
  CHSC30760  Chimaphila umbellata M. S. Taylor 1978-9-9 1907 Butte Bull Run Rd., ca. 50 ft. w of the rd, ca. 10 mi s of Butte Meadows. 1463 Comment
  UC474266  Chimaphila umbellata H. F. Copeland 1928-8-14 1002 Butte neighborhood Jonesville (on ridge above Scotch-John Creek) Comment
  UCD117414  Chimaphila umbellata Franklin C. Raney 1964-9-10 s.n. Butte Ten miles northeast of Feather Falls. Comment
  CAS-BOT-BC184906  Chloris virgata Lowell Ahart 1988-7-31 6141 Butte On the east side of Lone Tree Road, about 50 yards north of the intersection with Cox Lane, about 8 miles south of Oroville. 33 Comment
  RSA0058881  Chondrilla juncea Lowell A. Ahart 2008-7-23 15151 Butte On the north side of Ponderosa Way, north of the water fall, about 1 mile (air) southwest of the Ponderosa Dam, about 2 1/4 miles(air) northwest of Forbestown. 483 Comment
  CAS-BOT-BC252670  Chorizanthe membranacea Lowell Ahart 1984-6-8 4678 Butte Along the dirt road 1/10 mile north-west of the water tower, above the genterator about 1 mile east of teh Ponderosa Dam, about 2 miles north of Forbestown 475 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
  SEINET10479752  Chorizanthe polygonoides Mary Susan Taylor 1980-5-31 Taylor 2756 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
  UCD99938  Chorizanthe stellulata W. R. Powell 1968-4-23 1469 Butte 2 miles south-southeast of Oroville. 71 Comment
  CHSC46802  Chrysolepis sempervirens R. A. Schlising; B. Castro, L. Janeway 1988-7-30 4653 Butte 4.1 miles N of Inskip along Skyway/Humbug Road, at junction with Bull Hill Road to Butte Meadows. 1566 Comment
  SEINET10938010  Chrysothamnus nauseosus Mary Susan Taylor 1975-9-19 Taylor 920 Butte Ca. 0.5 mi N of Magalia, ca. 50 ft E of Skyway; serpentine area surrounded by Yellow Pine Forest. 610 Comment
  JEPS115351  Cichorium intybus Lowell Ahart 2009-7-3 15985 Butte 10 yards east of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 90 yards east of Cedar Grove, Lower Bidwell Park, Chico 67 Comment
  UCD130484  Cichorium intybus A. A. Heller 1914-7-11 11559 Butte Chico. Comment
  SEINET10475748  Cinnamomum camphora Mary Susan Taylor Taylor 453 Butte Campus of the California State University, Chico. 61 Comment
  CDA13340  Circaea alpina subsp. pacifica G. F. Hrusa, T. D. Wilfred 1996-7-9 13188 Butte Sierra Nevada; on USFS 23N15, approx. 100 meters to S of Hwy 162 across from entrance to Rogers Cow Camp. Comment
  RSA0070562  Cirsium andersonii H. F. Copeland 1928-8-14 1003 Butte Neighborhood of Jonesville. 1829 Comment
  CHSC94463  Cirsium douglasii var. breweri Lowell Ahart 2006-8-15 13188 Butte East part of a large meadow with bogs, 15 yards west of Willow Creek, about 100 yards southeast of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1569 Comment
  SD5918  Cirsium douglasii var. breweri E. B. Copeland 1930-7-28 Butte Jonesville 1600 Comment
  CHSC103144  Cirsium vulgare Lowell Ahart 2009-8-3 16262 Butte On the east side of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 236 Comment
  CAS-BOT-BC228761  Cistanthe umbellata Lowell Ahart 1983-7-29 4247 Butte About 2 miles east of Milsap Bar, about 25 miles north-east of Oroville 900 Comment
  CHSC24880  Clarkia arcuata T. L. Reynolds 1976-4-25 63 Butte Ca. 200 yds s of Butte Creek and ca. 400 yds sw of Covered Bridge, 6.9 mi ese of Chico. 121 Comment
  CHSC1096  Clarkia concinna subsp. concinna R. Carter 1964-6-12 119 Butte About 5 mi. NW of Forbestown on old Forbestown-Feather Falls Rd. 548 Comment
  RSA32817  Clarkia concinna subsp. concinna A. A. Heller 1938-5-28 15114 Butte On wooded slope in leaf mold on Feather River Highway 22 miles from Oroville. 610 Comment
  RSA699539  Clarkia gracilis subsp. albicaulis R. D. Fischer 2004-4-17 170 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located on edge of 10 Mile House Road at roads closest point to Big Chico Creek. 216 Comment
  SEINET10453151  Clarkia gracilis subsp. albicaulis Mary Susan Taylor 1977-6-25 Taylor 1380 Butte Foothill Woodland-Yellow Pine Forest transition zone, on Ponderosa Way betwe en Cohasset and Forest Ranch. 610 Comment
  CAS-BOT-BC171877  Clarkia gracilis subsp. gracilis L. P. Janeway; Linnea Hanson; Perrie Cobb 1993-5-5 4344 Butte East side of Stringtown Road 0.25 mi north of Hurlton Road 451 Comment
  SEINET10841116  Clarkia mildrediae Mary Susan Taylor 1978-7-21 Taylor 1804 Butte On N and S side of Oroville-Quincy Hwy, ca. 9 mi N of Lake Madrone, ca. 19 mi NE of Oroville; Yellow Pine Forest. 914 Comment
  CHSC71143  Clarkia mildrediae subsp. lutescens L. P. Janeway 1993-7-2 4426 Butte 1.3 mi south-southwest of Hungry Hunt Peak; along Road 22N84 2.6 mi from Rd 23N28. South-facing road cutbank. 993 Comment
  CHSC1104  Clarkia mildrediae subsp. mildrediae V. Holt 1935-5-28 Butte Butte Creek. 243 Comment
  UC1730254  Clarkia mosquinii L. P. Janeway and Perrie Cobb 1993-7-6 4430 Butte 1.8 mi E-NE of Bald Rock Dome (Watson Ridge, southwestern end, 0.7 mi NW of Fall River) 1097 Comment
  CHSC7120  Clarkia purpurea E. L. Williams 1969-5-2 13 Butte Across from Chico Airport Entrance. 137 Comment
  JEPS108567  Clarkia purpurea subsp. purpurea L. P. Janeway 2005-5-17 8393 Butte Sacramento Valley. 0.5 km west of Larkin Road, 1.7 km south of Hwy. 162, about 0.5 km northeast of Thermalito Afterbay 43 Comment
  UC107844  Clarkia purpurea subsp. purpurea H. E. Brown Mar 3 1897-Mar 23 1897 212 Butte near Clear Creek 53 Comment
  CHSC1109  Clarkia purpurea subsp. quadrivulnera E. Hembree 1929-5-15 Butte Cohasset. 457 Comment
  SEINET10973133  Clarkia purpurea subsp. viminea Lowell Ahart, Peter Ahart 1984-5-28 Ahart 4650 Butte On a large road cutbank along Hwy 40, now called Dark Canyon Rd, ca. 2 mi E of Old Yankee Hill, ca. 16 mi NE of Oroville; Foothill Woodland; 450 m. 450 Comment
  CHSC59114  Clarkia rhomboidea L. P. Janeway 1991-6-1 3979 Butte West-facing cut-bank of Dark Canyon Road 0.9 mi south of Big Bend Road/Parkhill. 512 Comment
  CHSC60837  Clarkia rhomboidea Vernon H. Oswald; Lowell Ahart 1993-6-22 5554 Butte Powellton Rd., 2.1 mi N of Doe Mill Rd. (Ponderosa Way), N of De Sabla. 963 Comment
  CHSC70747  Clarkia rhomboidea L. P. Janeway 1993-6-16 4389 Butte Upper slopes, east-facing, in North Fork Feather River; along Hwy 70 1.1-1.3 mi northeast of Jarbo Gap. 670 Comment
  JEPS113191  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 685 Comment
  RSA144793  Clarkia rhomboidea G. I. Stage, R. Thorp 1959-6-21 59 -118 Butte Highway 32 at line between Tehama County and Butte County. Comment
  CHSC56066  Claytonia palustris L. P. Janeway 1988-7-29 3103 Butte Along Butte Creek at Butte Meadows, at crossing of Bull Hill Road (Skyway). 1325 Comment
  SFV1151  Claytonia palustris J. R. Swanson 1959-6-13 477 Butte Jonesville. Along margins of Jones Creek. 1677 Comment
  SEINET10674969 Image available Claytonia palustris John R. Swanson 1959-7-4 Swanson 490 Butte Butte Co., Jonesvile, marshy, sloping, stream-fed meadow above south bank of Jones Creek. 0.4 km. east of the Jonesville Hotel. 1550 Comment
  CHSC37285  Claytonia parviflora subsp. parviflora M. S. Taylor 1982-5-2 4394 Butte Pulga serpentine outcrops, on n side of Hwy 70 at Pulga bridge ca 20 mi ne of Oroville. 487 Comment
  CHSC56069  Claytonia parviflora subsp. parviflora L. P. Janeway 1988-7-2 2961 Butte Along road to French Creek, 1.2 mi south of Coyote Gap. Shady seepy area above the road. 1127 Comment
  SEINET11946901  Claytonia parviflora subsp. parviflora Unknown 1998-4-11 15 Butte Chico, Upper Bidwell Park about 1 km E of Horseshoe Lake, along gravel road that follows Chico Creek 104 Comment
  CHSC19934  Claytonia perfoliata subsp. perfoliata M. S. Taylor 1975-3-10 380 Butte Abundant on s side of Butte Creek, ca. 30 ft s of Covered Bridge, ca. 8 mi e of Chico. Comment
  CHSC34945  Claytonia perfoliata subsp. perfoliata Debra Barton 1974-4-7 11 Butte Abundant at Campotel Campground, 3 mi e of Oroville on Hwy. 162, left side of left road entrance, 400 ft from entrance. Comment
  CHSC42078  Claytonia perfoliata subsp. perfoliata Kim McKirahan 1986-4-11 9 Butte Wurlitzer Addition to Vina Plains Preserve. Pine Creek. 56 Comment
  CAS-BOT-BC443703  Claytonia rubra M. S. Taylor 1982-5-23 4510 Butte S side of hwy 70, by Arch Rock Tunnel, ca. 1/2 mi sw of Butte-Plumas county line. 487 Comment
  UC726582  Claytonia rubra subsp. rubra A. A. Heller 1918-5-5 13007 Butte Magalia Comment
  UC135532  Clematis lasiantha Mrs. R. M. Austin May 1896 758 Butte Comment
  CHSC44298  Clintonia uniflora V. Oswald; L. Ahart 1988-6-17 3401 Butte West side of Pinkard Creek ca. 1 mi n of Lost Creek reservoir. 1028 Comment
  RSA7435  Collinsia heterophylla J. H. Morrison 1932-05 s.n. Butte Deerhaw. Comment
  UC426947  Collinsia parviflora E. B. Copeland 1930-6-28 454 Butte Jonesville 1650 Comment
  RSA589931  Collinsia sparsiflora Michael A. Vincent, Robert M. Rhode, Jim Snowden 1996-3-29 7216 Butte North Table Mountain, W of Cherokee Rd. N of Oroville. N side of Beatson Hollow, 2.1 miles along trail from entrance on Cherokee Rd. Comment
  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
  JEPS124175  Collinsia sparsiflora var. collina Lowell Ahart 2015-3-14 19953 Butte About 1 1/4 miles (air) northwest of Cherokee Road, about 7 miles (air) north of Oroville. Comment
  UC196054  Collinsia sparsiflora var. sparsiflora A. A. Heller 1914-3-9 11190 Butte Chico, in a field near the U.S. Plant Introduction Garden Chico Comment
  CDA31999  Collinsia tinctoria L. Ahart 2008-5-3 15785 Butte Around large rocks, north of a broad open drainage in oak woodland, about 100 yards north of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) west of Highway 32, about 10 miles northeast of Chico 0 Comment
  CHSC40882  Collinsia tinctoria Lowell Ahart 1985-5-15 4977 Butte West of Lunt Road, about 1/2 mile north of the intersection of Lunt Road and Highway 70, north of Yankee Hill. 502 Comment
  CHSC84862  Collinsia tinctoria L. P. Janeway; John Hunt 2003-6-6 7814 Butte Northern Sierra Nevada Foothills. East-southeast facing slope above Lake Oroville 350 m northeast of the north end of Bidwell Bar Bridge. 296 Comment
  JEPS94771  Collinsia tinctoria Lowell Ahart 1998-6-3 7970 Butte about 7 air mi n of Oroville (about 1/4 mi n of the cow chute along Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 403 Comment
  CHSC26171  Collomia heterophylla J. P. Kroessig 1977-6-14 39 Butte Ca 8 km n and w on dirt road at n end of Concow Road, ca 13 km ne of Paradise. 1100 Comment
  CHSC34597  Collomia heterophylla R. A. Schlising; P. Broyles 1979-5-15 3405 Butte NW of Concow Reservoir at Griffin Gulch. Roadside. 640 Comment
  CHSC34995  Collomia heterophylla R. A. Schlising 1980-6-2 3620 Butte Along Highway 32, 10.3 mi N of jct with Forest Ranch Road in village of Forest Ranch; at roadside. Comment
  CAS-BOT-BC180389  Comandra umbellata subsp. californica John Thomas Howell 1961-9-22 s.n. Butte N Fork of Feather River, 10 mi from Oroville. Sierra Nevada Comment
  CHSC440  Convolvulus arvensis E. Lusk 1949-5-30 Butte Lindo Channel near Chico. 57 Comment
  CAS-BOT-BC286059  Conyza canadensis Ira L. Wiggins 1928-9-9 3348 Butte Sandy Gulch Creek, 3 miles west of Chico Comment
  CAS-BOT-BC286065  Conyza canadensis Lowell Ahart 1987-7-17 5836 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  CAS-BOT-BC237927  Cordylanthus Lowell Ahart 1980-7-29 2495 Butte Along Hurleton Swedes Flat Road 600 Comment
  SEINET12331907  Cordylanthus pilosus subsp. bolanderi Unknown 1985-1 5153 Butte along Forbestown Ditch, about 2.5 mi NE of Forbestown 869 Comment
  CDA38806  Cordylanthus pilosus subsp. hansenii L. Ahart 2010-9-12 17150 Butte Just above 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. Comment
  HSC90868  Cordylanthus tenuis subsp. viscidus L. R. Heckard, T. I. Chuang 1971-8-15 2768 Butte Ca. 1.5 mi. W of Butte Meadows at Thatcher Ridge road junction 1280 Comment
  POM77773  Cornus nuttallii C. C. Bruce 1898-05 s.n. Butte Forest Ranch Comment
  SEINET12137282  Cornus nuttallii T. R. Norton 1977-1 11 Butte ca 6.5 NE of Paradise, 1.5 mi N of Magalia, 0.5 mi N of Magalia Reservoir, 0.25 mi E of the Skyway Comment
  SEINET12137515  Cornus nuttallii Unknown 1979-1 14 Butte N rim of Magalia Reservoir, ca 300 yds E of intersection between Dogtown Rd & Skyway 914 Comment
  CHSC48307  Cornus sericea subsp. sericea Vernon Oswald 1987-6-23 3007 Butte Just w of the Skyway, 1.4 mi (odometer) s of Inskip. 1426 Comment
  CHSC38401  Cornus sessilis Vernon Oswald 1983-6-2 608 Butte Upper Bidwell Park, Chico, along Yahi Trail e of Brown's Hole. On the bank of Chico Creek. 207 Comment
  UC193079  Cornus sessilis Dr. Parry April, 1883 Butte Chico Creek Comment
  CHSC103167  Cotoneaster lacteus Lowell Ahart 2009-11-19 16562 Butte On the south side of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 311 Comment
  CHSC110992  Cotoneaster lacteus Lowell Ahart 2012-6-21 18223 Butte About 25 yards west of the Freeway, 70 yards south of Big Chico Creek, Lower Bidwell Park, Chico. 62 Comment
  UC1562410  Cotula australis Lowell Ahart 1990-5-28 6498 Butte about 2 1/2 mi n.e. East Gridley (along edges of Palm Avenue, about 1/12 mi. e. of Larkin Road) 30 Comment
  CAS-BOT-BC427665  Crassula connata Lowell Ahart 1990-4-8 6442 Butte On the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville 33 Comment
  CHSC70850  Crassula connata Lowell Ahart 1998-4-8 7950 Butte 1/10 mile north of the Thermalito Diversion Dam, east of the Thermalito Diversion Pool, 1/4 mile northeast of Oroville. 67 Comment
  RSA636050  Crassula connata var. erectoides Michael A. Vincent, Ethan H. Freid 1998-4-6 8126 Butte Table Mountain Comment
  SEINET10449718  Crassula muscosa Mary Susan Taylor 1980-4-6 Taylor 2444 Butte T8N R5E ec border sec 3. Junction of Rocky Honcut Creek and Swedes Flat Rd, ca. 2 mi E of Oroville-Bangor Hwy, ca. 10 mi SE of Oroville. With L. Ahart & J.D. Jokerst. 366 Comment
  CHSC31173  Crassula tillaea M. S. Taylor 1980-4-16 2492 Butte Lake Oroville State Recreation Area, ca. 1/4 mi s of Parish Camp just s of Lime Saddle Memorial Park, ca. 5 mi s of Paradise. 304 Comment
  CHSC35689  Crassula tillaea J. D. Jokerst 1982-4-12 1522 Butte W side hwy 149, 3/10 mi N of hwy 70. Comment
  CHSC110990  Crataegus monogyna Lowell Ahart 2012-5-17 18084 Butte On both sides of the horse trail, between the paved park road and the poor dirt road, between Table 21 and Larch, Lower Bidwell Park, Chico. 73 Comment
  SEINET10483806  Crataegus oxyacantha Mary Susan Taylor 1975-5-24 Taylor 769 Butte Lower Bidwell park, between Cork Oak Grove and Cypress Grove Picnic Area, Chico. 61 Comment
  CAS-BOT-BC290528  Crepis capillaris Lowell Ahart 1988-6-29 6092 Butte East of Galen Ridge Road, about 1/2 mile east of the Oroville Quincy Highway, north of Lake Madrone 621 Comment
  CHSC21015  Croton setiger M. S. Taylor 1975-10-3 947 Butte Roadsides, ca. 1/4 mi n of the washout, between River Road and the Sacramento River, ca. 10 mi w of Chico. 36 Comment
  SEINET11170847  Crucianella angustifolia B. Ertter, L. Ahart, J. Strachan 1980-5-6 3282 Butte Peter Ahart Ranch ca 2 1/2 mi NNE of Honcut between Oroville and Marysville, 30 Comment
  CHSC113533  Crypsis alopecuroides Lowell Ahart 2014-9-23 19873 Butte Near a small drainage, on the northeast part of Horseshoe Lake, about 100 yards northeast of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. 88 Comment
  CAS-BOT-BC190090  Crypsis schoenoides Lowell Ahart 1986-11-14 5481 Butte About 0.1 mile south of the clay burrow for Oroville Dam, about 0.25 mile east of Larkin Road, about 6 miles southwest of Oroville. 36 Comment
  JEPS122249  Crypsis vaginiflora Lowell Ahart 2014-9-23 19875 Butte On the northeast part of Horseshoe Lake, about 100 yards northeast of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. Comment
  CHSC97357  Cryptantha flaccida Paul Maslin 2005-4-30 54 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). UTM: 10610150E 4408939N. 518 Comment
  CHSC38272  Cryptantha intermedia Vernon Oswald 1983-4-27 397 Butte Upper Bidwell Park, Chico, beside Upper Park Rd. ca. 100 ft e of the entrance to Parking Area S (Brown's Hole). 231 Comment
  CHSC47049  Cryptantha intermedia Lowell Ahart 1983-6-30 4180 Butte 1.5 miles north-east of Concow Reservoir. 550 Comment
  CHSC29972  Cryptantha milobakeri R. A. Schlising 1980-6-10 3673 Butte Along Humboldt Road, 1.9 mi NE jct with Hwy 32 at Loma. Comment
  CHSC39025  Cryptantha milobakeri R. A. Schlising 1983-5-13 4405 Butte Bald Rock Dome area in e-central part of county. 548 Comment
  UC726521  Cryptantha torreyana A. A. Heller 1917-7-26 12818 Butte Butte Meadows 1402 Comment
  CHSC44897  Cryptogramma acrostichoides Lowell Ahart 1988-7-31 6164 Butte About 1 air mile north-east of Bald Mountain, about 4 1/2 air miles north-east of Stirling City. 1676 Comment
  CHSC3021  Cupressus lusitanica Carl Pejsa 1958-4-19 34 Butte Bidwell Park Forestry Station. Comment
  NY16699  Cupressus macnabiana A. A. Heller 1918-5-5 13009 Butte This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SEINET10531457  Cupressus macnabiana Mary Susan Taylor 1981-4-8 Taylor 3503 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
  CHSC41918  Cuscuta californica Lowell Ahart 1983-8-16 4282 Butte Along Humboldt Road, about 3 miles south-west of Butte Meadows. 1450 Comment
  CHSC44159  Cuscuta californica var. breviflora V. Oswald; L. Ahart 1988-7-29 3653 Butte Ca. 5 mi (air) se of Jonesville on the ridge running eastwards from the peak of Snow Mtn. 2097 Comment
  JEPS110256  Cuscuta californica var. californica Lowell Ahart 2006-7-4 12911 Butte Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville 30 Comment
  CHSC31645  Cuscuta indecora L. Ahart 1977-8-18 1555 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC113062  Cuscuta occidentalis Lowell Ahart 2013-7-16 18838 Butte On dry smoothed dredge tailings, northwest of a large wash, about 1/2 mile southeast of Honcut Cemetary, about 3 1/4 miles (air) northeast of Honcut. 54 Comment
  CHSC116115  Cynodon dactylon Lowell Ahart 2015-11-7 20622 Butte Crack in the paved road, strand of Lake Oroville, on the east side of the old highway Alternate 40, about 1/8 mile south of the end of Alternate 40, Dark Canyon, about 4 miles (air) south of Highway 70, about 8 miles (air) southeast of Paradise. 240 Comment
  POM72532  Cynoglossum grande C. C. Bruce 1897-03 2092 Butte Little Chico Comment
  CHSC82508  Cynosurus echinatus Lowell Ahart; John Dittes, Josephine Guardino 2002-6-21 9737 Butte On the sides of a poor dirt road, Watson Ridge, about 2 miles (air) northeast of Bald Rock Dome, about 5 miles (air) north of Feather Falls (the town). Comment
  CHSC34199  Cyperus bipartitus J. D. Jokerst; L. Ahart 1981-9-26 1493 Butte Swale 100 m E of Sacramento River at the Bidwell River State Park (Chico Landing) ca 5.0 mi W of Chico. Comment
  UCD150346  Cyperus bipartitus William Anderson 1965-9-4 s.n. Butte Dry Creek-Oro-Paradise Rd. Comment
  HSC87073  Cyperus difformis C. A. Janeway 1986-10-10 Butte Chico, gravel bar on N side of Chico Creek at 5-mile recreation area 79 Comment
  CHSC31478  Cyperus eragrostis L. Ahart 1980-7-29 2499 Butte Along the edge of a small stream, near Hurleton Swedes Flat Rd, near Hurlton. 600 Comment
  CHSC68379  Cyperus eragrostis L. P. Janeway; C. A. Janeway 1986-9-14 1860 Butte Sycamore Creek at Cohasset Avenue near Eaton Road. 54 Comment
  SEINET10466874  Cyperus eragrostis Mary Susan Taylor 1978-9-8 Taylor 1881 Butte Along flood control slough, ca. 4 mi N of Chico, along Hwy 99. 61 Comment
  JEPS97341  Cyperus flavescens Lowell Ahart 1995-8-19 7618 Butte 1 mi N and 2 3/4 mi E of Honcut; Peter Ahart Ranch 36 Comment
  SEINET7581945 Image available Cyperus flavescens Lowell Ahart 1987-1 5865 Butte Along the north fork of the Feather River, near the Poe Power House, about 2 miles southeast of Jarbo Gap. 271 Comment
  JEPS95883  Cyperus fuscus Lowell Ahart 1999-10-3 8287 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
  CHSC26749  Cyperus niger M. S. Taylor; M. Hayes 1977-8-16 1447 Butte Near the man-made ponds on Clear Creek, Butte College Campus, ca. 15 mi s of Chico. 60 Comment
  CHSC76301  Cyperus niger Lowell Ahart 1999-9-21 8274 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
  JEPS120156  Cyperus niger Lowell Ahart 2012-10-20 18502 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
  POM313079  Cyperus niger var. capitatus H. L. Mason, Verne Grant 1946-9-27 13141 Butte 3 miles west of Biggs. Comment
  CHSC37082  Cyperus odoratus L. Ahart 1982-10-11 3854 Butte On bottom of deep ditch, w of check-in station, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CHSC43137  Cyperus squarrosus Robert Banchero 1981-8-6 638 Butte Ca 3 air mi se of Jonesville. 1853 Comment
  JEPS95982  Cyperus squarrosus Lowell Ahart 1999-10-28 8302 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
  POM183187  Cyperus squarrosus H. F. Copeland 1930-7-29 1351 Butte Neighborhood of Jonesville 1829 Comment
  SBBG50427  Cyperus strigosus J. T. Howell 1959-9-20 Butte eastern outskirts of Oroville 60 Comment
  CHSC23703  Cystopteris fragilis M. S. Taylor 1976-5-5 1118 Butte On s side of Bear Creek, ca. 1/4 mi s of Hwy 70, ca. 30 mi ne of Oroville. Comment
  UC399284  Cystopteris fragilis Mrs. Carlotta C. Hall July 1914 9791 Butte Humboldt Rd Comment
  CHSC110336  Cytisus scoparius L. P. Janeway 2013-5-9 11099 Butte Northern High Sierra Nevada. Plumas National forest; along Oroville-Quincy Hwy 0.3 km north of Madrone Lake. 632 Comment
  CAS-BOT-BC190482  Dactylis glomerata M. S. Taylor 1978-7-21 1815 Butte On south side of Oroville-Quincey Highway. Ca. 14 miles north of Lake Madrone. 1463 Comment
  CHSC39662  Danthonia unispicata Lowell Ahart 1983-6-21 4093 Butte Found along Boomer Hill Road, about 1 1/4 miles west of the Oroville Quincy Highway, about 15 miles north-east of Oroville. 450 Comment
  CHSC87576  Darmera peltata R. D. Fischer 2004-5-2 127 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located on margins of Big Chico Creek near bottom of 10 Mile House Road. 192 Comment
  UC858320  Darmera peltata A. A. Heller 1916-4-13 12317 Butte e of Chico (Stilson canyon) Comment
  CAS-BOT-BC420355  Darmera peltata C. C., Mrs. Bruce 1897-5-1 s.n. Butte unspecified Comment
  CHSC45735  Datura wrightii Elizabeth L. Knight 1988-4-15 7 Butte At Parrott Landing ca. 50 ft e of Sacramento River ca. 11 m sw of Chico. River bank. 30 Comment
  CHSC35967  Daucus pusillus M. S. Taylor 1982-5-21 4491 Butte On n side of Hwy 70 along Pulga Rd near Pulga bridge over the Feather River, ca. 20 air mi ne of Oroville. 487 Comment
  CHSC38733  Daucus pusillus Vernon Oswald 1983-5-7 446 Butte Upper Bidwell Park, Chico, on the north rim ca. 1600 ft e of the power lines. 274 Comment
  SEINET10873898  Daucus pusillus Mary Susan Taylor 1982-5-21 Taylor 4491 Butte T23N R5E ne/ne sec 6. Pulga Sw quad. On n side of Hwy 70 along Pulga Rd, near Pulga bridge over Feather River, ne of Oroville. On serpentine; 1600 ft. 488 Comment
  SEINET10536226  Delphinium Mary Susan Taylor 1976-3-9 Taylor 1022 Butte Valley Grassland, on Burton's Mesa, ca. 500 yds N of the Skyway, ca. 13 mi E of Chico. 457 Comment
  CAS-BOT-BC8569  Delphinium hansenii Lowell Ahart 1988-6-29 6086 Butte Along Bloomer Hill Road (Ponderosa Way), about 1.5 miles W of Oroville Quincy Highway 457 Comment
  CAS-BOT-BC8568  Delphinium hansenii Lowell Ahart 1989-5-31 6328 Butte Along Truex Road, near lake Oroville, about 0.25 miles north-west of the West Branch Bridge across Lake Oroville 304 Comment
  CAS-BOT-BC8571  Delphinium hansenii John Thomas Howell 1962-6-16 37627 Butte Concow School north of Yankee Hill 533 Comment
  UC9172  Delphinium hansenii subsp. hansenii Mrs. R. M. Austin and Bruce June 1898 1913 Butte Comment
  HSC41698  Delphinium hesperium J. P. Smith, J. O. Sawyer 1973-4-14 6058 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  CHSC84134  Delphinium hesperium subsp. pallescens Lowell Ahart 2003-5-14 10174 Butte About 150 yards west of the dredge piles along North Honcut Creek, about 2 1/2 miles north and 2 1/2 miles east of Honcut, about 12 miles southeast of Oroville. 60 Comment
  CAS-BOT-BC10106  Delphinium hesperium subsp. pallescens Mrs. H. C. Cantelow 1940-5-10 4255 Butte 8.5 mi. SW of Oroville along Hwy. 24 Comment
  CAS-BOT-BC8068  Delphinium nuttallianum A. A. Heller 1915-6-27 12038 Butte Jonesville in the Sierra Nevada 1676 Comment
  CAS-BOT-BC8069  Delphinium nuttallianum A. A. Heller 1915-6-27 12038 Butte Jonesville in the Sierra Nevada 1676 Comment
  CHSC97408  Delphinium nuttallianum Robert Fischer 2006-6-17 1027 Butte Butte Meadows. Cascade Range High, off Hwy. 32 on Humboldt Road between Lomo and Butte Meadows. 1402 Comment
  CHSC77437  Delphinium patens Laura Bogni 1997-4-5 18 Butte Magalia grove. West side of Coutelenc Rd.; 1 mi. due W of Sawmill Peak; 1/2 mi. SE of Magalia Reservoir. 701 Comment
  CHSC56774  Delphinium patens subsp. patens M. S. Taylor 1976-3-9 1022 Butte On Burton's Mesa, ca. 500 yds n of the Skyway, ca. 13 mi e of Chico. 457 Comment
  CAS-BOT-BC121611  Delphinium patens subsp. patens A. A. Heller 1919-5-18 13176 Butte Mosquito Creek between Appleton and Coutelence Comment
  CAS-BOT-BC121623  Delphinium patens subsp. patens Saichi Kawahara 1968-5-4 394 Butte James Ripley's property, Graham Road, Paradise 640 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
  CHSC23655  Delphinium variegatum subsp. variegatum M. S. Taylor 1976-3-9 1023 Butte On Burton's Mesa, ca. 500 yds n of the Skyway, ca. 13 mi e of Chico. 457 Comment
  CAS-BOT-BC17023  Delphinium variegatum subsp. variegatum A. A. Heller 1918-4-19 12987 Butte Valley oak belt on the banks of Pine creek 12 miles north of Chico Comment
  CAS-BOT-BC82872  Dendromecon rigida A. A. Heller 1918-5-5 13010 Butte Near Magalia. Comment
  POM97723  Dendromecon rigida C. C. Bruce 1898-05 2417 Butte Doe mill Comment
  SEINET10973508  Dentaria tenella var. palmata Mary Susan Taylor 1979-3-31 Taylor 1970 Butte On property belonging to Deanne Lickey; along Ishi Trail Road, ca. 0.5 mi NE of Concow Road and Lake Concow, ca. 25 mi N of Oroville; Yellow Pine Forest; granite soils. 671 Comment
  SEINET3450775  Deschampsia cespitosa var. cespitosa Unknown 2003-7-14 10395 Butte Bear Valley, Bear Valley, about 2 air miles west, Barrel Spring, about 1.5 air miles south of Bartlett Springs Road 390 Comment
  CAS-BOT-BC192657  Deschampsia danthonioides A. A. Beetle 1941-6-27 2746 Butte Near Lomo at road forking to Chico Creek Comment
  RSA715565  Deschampsia danthonioides L. Ahart 2005-5-2 11768 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 Ord bend, about 12 miles (air) southwest of Chico. 26 Comment
  SEINET10788955  Deschampsia danthonioides Roland McKee 1909-1 McKee s.n. Butte Chico. Comment
  SEINET10508566  Deschampsia danthonioides Mary Susan Taylor 1978-4-14 Taylor 1547 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
  CHSC94017  Deschampsia elongata R. Fischer 2005-9-5 663 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
  CHSC44385  Dianthus armeria Lowell Ahart 1988-6-29 6089 Butte Along Galen Ridge Road, about 1/2 mile east of the Oroville Quincy Highway, north of Lake Madrone. 621 Comment
  CHSC636  Dicentra formosa R. M. Staley 1952-7-13 Butte Ponderosa Way. 609 Comment
  CHSC105687  Dicentra formosa subsp. formosa Lowell Ahart 2010-9-21 17202 Butte About 50 yards east of the poor dirt road, about 100 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1917 Comment
  CHSC19651  Dicentra formosa subsp. formosa K. R. Stern 1966-4-1 Butte Chico. Comment
  CAS-BOT-BC254523  Dichanthelium acuminatum subsp. acuminatum John Thomas Howell 1961-9-22 36729 Butte Feather River, Oroville 53 Comment
  CAS-BOT-BC500056  Dichelostemma capitatum Jim Riley 1923-4-2 s.n. Butte Richardson Springs/. Comment
  CAS-BOT-BC500059  Dichelostemma capitatum Helen Edwards 1917-6-1 s.n. Butte DeSabla Comment
  CAS-BOT-BC500065  Dichelostemma capitatum A. A. Heller 1915-3-24 11778 Butte Low grassy hills 8 miles north of Oroville below the blue oak belt in red clay soil, where it is plentiful, associated with Lepidium, Dodacatheon and Athysanus, the first plants in bloom.. Comment
  SEINET12047241  Dichelostemma capitatum W. A. Vaccaro 1976-1 2 Butte S side of Humbug Rd, 2.4 mi E of Centerville 128 Comment
  UCD139185  Dichelostemma capitatum Craig Martz 1982-3-16 31 Butte Along State Route 70, 1 mile north of intersection with Palermo road, south of Oroville. 45 Comment
  CHSC79869  Dichelostemma capitatum subsp. capitatum Leanna Brown 1999-3-9 20 Butte Canyon Rim Pl. Rd. and Skyway. 130 Comment
  UCD139211  Dichelostemma capitatum subsp. capitatum Kathy Corson 1969-4-6 2 Butte around 10 miles east of Chico on State Highway 32. Comment
  CAS-BOT-BC501097  Dichelostemma multiflorum John Thomas Howell 1955-6-14 30435 Butte Magalia, Sierra Nevada 731 Comment
  RSA256665  Dichelostemma multiflorum Kitsy Kelly 1974-4-20 16 Butte 300 yards south of the intersection of Pentz and Clark Roads 61 Comment
  CHSC4716  Dichelostemma volubile R. Carter 1966-4-30 387 Butte Found 7 mi. E of Oroville ca. 1/8 mi. W off Feathervale at 6120 Woodleaf St. Rt. 243 Comment
  SEINET8476819  Dichelostemma volubile M. J. Williams, W. Roderick 1984-5-25 84- 21 -2 Butte 3.3 mi from Paradise on Honey Run Road. 168 Comment
  UC143025  Dichelostemma volubile Mrs. R. M. Austin May 1896 836 Butte Iron Canyon Comment
  CAS-BOT-BC502524  Dichelostemma volubile H. E. Brown 1897-4-15 210 Butte Near Clear Creek Comment
  SD120609  Dichondra donelliana Barbara Ertter, Jeffrey Strachan and Lowell Ahart 1980-5-8 331 2a Butte North Honcut Creek, Ahart Ranch, ca. 2.5 miles northest of Honcut between Marysville and Oroville. 49 Comment
  CAS-BOT-BC209035  Digitaria sanguinalis Ira L. Wiggins 1928-9-9 3340 Butte Sandy Gulch Creek, 3 miles west of Chico 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
  CHSC3011  Diospyros virginiana Carl Pejsa 1958-4-19 35 Butte Bidwell Park Forestry Station. Comment
  CHSC44776  Diplacus angustatus R. Banchero 1980-4-9 102 Butte Along Cherokee Rd ca 1.0 mi N of its jct with Oregon rd, 2.3 mi S of the town Cherokee. 426 Comment
  CHSC7110  Diplacus angustatus F. Kimball 1969-4-19 46 Butte 20 yds, s of Wayland Rd. at Foster Rd. in wet track. 365 Comment
  CAS-BOT-BC150508  Diplacus grandiflorus Lewis S. Rose 1933-5-26 33186 Butte Feather River Canyon, 5 mi. E. of Oroville 152 Comment
  CHSC22325  Diplacus grandiflorus Robert A. Schlising 1964-6-12 2727 Butte Foothills. 9.5 miles south of Injun Jim Camp (in Plumas Co. near Tobin) along Alt. Hwy. 40 and Feather River. Comment
  CHSC3801  Diplacus grandiflorus R. L. Adams 1964-4-2 68 Butte Found: S. side of road, 1/4 mi. from 14 Mi. House on Hwy. 32, approx. 25 yrds. in canyon. About 12 mi. from Chico. Comment
  CHSC62786  Diplacus grandiflorus L. P. Janeway 1993-6-3 4368 Butte Plumas National Forest. South end of Swayne Hill, along the road to Big Bar Mtn (23N28). On road cutbank. 731 Comment
  CHSC71193  Diplacus kelloggii Lowell Ahart 1998-6-3 7971 Butte About 1/4 mile north of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CHSC44731  Diplacus torreyi R. Banchero 1980-6-16 239 Butte Along Humbolt Rd 1.9 mi SW of the jct with the Skyway, Ca 3.1 mi NE of the jct of Humbolt Rd and Hwy 32. 1414 Comment
  CAS-BOT-BC154166  Diplacus tricolor Lowell Ahart 1982-5-12 3433 Butte Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut 50 Comment
  CAS-BOT-BC154169  Diplacus tricolor Mrs. C. C. Bruce 1897-5-1 2107 Butte Fields Comment
  CHSC109851  Dittrichia graveolens L. P. Janeway 2012-11-14 11083 Butte Cascade Range Foothills. Along Skyway between Chico and Para-dise, 5.3 road km east of its bridge over Butte Creek; along inner edge of west-bound lane. 215 Comment
  CHSC3290  Dodecatheon clevelandii subsp. patulum M. L. Hillier 1966-2-21 Butte Old Oroville Chico rd. 3/4 miles w. of highway 99E along rd. side. Comment
  CHSC3563  Dodecatheon clevelandii subsp. patulum R. D. Briggs 1966-3-21 39 Butte Along Durham-Pentz Rd., 5 miles SSE of downtown Chico and 1 mile west of hwy US 99E. 57 Comment
  CHSC27955  Dodecatheon hendersonii M. S. Taylor 1979-3-20 1944 Butte Ca. 1 mi n of jct of north fork Feather River and Hwy 70 along an old road, ca. 10 mi n of Oroville. 304 Comment
  CHSC4174  Dodecatheon hendersonii Kathy Sommerstrom 1967-4-25 25 Butte Found 1/8 mi west of covered bridge, 100 yds from Butte Creek on South bank. 76 Comment
  CHSC67289  Dodecatheon hendersonii James D. Jokerst; L. Ahart 1985-3-24 2178 Butte Rocky Ridge' ca. 1.33 mi NE of N edge of Lake Concow on road to Flea Mtn. Comment
  SEINET12319544  Downingia bicornuta Unknown 1980-1 18 Butte N of Chico. T23N, R1W, Sec. 4. (Richardson Spgs. NW quad, 7.5') 58 Comment
  CHSC47396  Downingia cuspidata Lowell Ahart 1978-5-2 1701 Butte Growing in shallow water in a vernal pool, near the large parking area on top of Table Mountain, about 7 miles north of Oroville. 426 Comment
  SEINET3450898  Downingia cuspidata Unknown 2003-5-28 10227 Butte Oroville, Oroville, about 7 miles north, north Table Mountain, about 1.75 miles west of the iron gate and fence west of Cherokee Road, bottom of Hendricks ditch 270 Comment
  CHSC23476  Downingia ornatissima var. ornatissima Tim Manolis 1974-4-23 36 Butte SW of corner of jct. of Broyle Rd. and Hwy 99, 12 mi. N of Chico. Comment
  JEPS14465  Downingia ornatissima var. ornatissima R. F. Hoover 1936-5-20 1151 Butte 10 mi sw Oroville Comment
  UC196263  Downingia ornatissima var. ornatissima A. A. Heller 1914-4-17 11305 Butte 8 mi n Oroville Comment
  UC635661  Downingia ornatissima var. ornatissima Herbert L. Mason 1927-5-9 3708 Butte 15 mi w Oroville; Sacramento Valley Comment
  CHSC35901  Draperia systyla M. S. Taylor 1982-5-23 4512 Butte S side of Jwy 70, e side of Arch Rock Tunnel, ca. 1/2 mi sw of Butte-Plumas county line. 487 Comment
  CHSC687  Draperia systyla R. Carter 1964-5-16 90 Butte Feather R. Canyon, S side Hwy. 40 A along old road ca. 300 yds. E of Bear Cr. 731 Comment
  CHSC12109  Dryopteris arguta J. M. Pitts 1972-4-16 133 Butte Locally abundant 100 yards se of Humbug Rd. 7.9 mi ne past Honeyrun Bridge. 426 Comment
  CHSC34  Dryopteris arguta V. Holt 1935-11-1 Butte Honey Run grade. 365 Comment
  CHSC27259  Duchesnea indica P. Moyer 1972-3-11 123 Butte CSUC Campus. 200 ft. from n side of cafe annex bridge, w side off walkway. 60 Comment
  CAS-BOT-BC109477  Dudleya John Thomas Howell 1962-6-16 37597 Butte Sierra Nevada. Feather River West Branch southwest of Nelson Bar. 304 Comment
  CHSC31794  Dudleya cymosa L. Ahart 1976-4-7 1038 Butte Along North Honcut Creek, Peter Ahart Ranch, Honcut. 45 Comment
  CHSC42110  Dysphania ambrosioides Lowell Ahart 1986-11-7 5419 Butte In a prune orchard, east of the Feather River, north of the Oroville Gridley Highway, about 3 miles east of Gridley. 28 Comment
  RSA0118933  Dysphania botrys Lowell Ahart 2013-11-13 19232 Butte Below the high water line of Lake Oroville, along the sides of Sucker Creek, about 30 yards north of the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 244 Comment
  CAS-BOT-BC197098  Echinochloa crus-galli John Thomas Howell 1951-6-26 27519 Butte Big Bend Mt. 609 Comment
  CHSC34206  Echinochloa crus-galli J. D. Jokerst; L. Ahart 1981-9-26 1485 Butte In swale (old river channel). Bidwell River State Park (Chico Landing) ca. 5. mi W of Chico. E bank Sacramento River. Comment
  RSA29944  Echinochloa crus-galli I. L. Wiggins 1928-9-9 3338 Butte Sandy Gulch Creek, 3 miles west of Chico Comment
  CDA2010  Echinochloa crus-galli var. crus-galli J. Harroun 1958-9-16 1233 -58 Butte 0 Comment
  JEPS93836  Echinochloa muricata Lowell Ahart 1998-7-1 8031 Butte about 7 air mi n of Oroville (50 yards n of a poor east west fence, about 3/4 mi nw of the cow chute along Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 350 Comment
  UCD61090  Echinochloa muricata P. B. Kennedy 1921-9-9 Butte Rice Station, Biggs. Comment
  UCD61094  Echinochloa muricata P. B. Kennedy 1921-8-9 Butte Rice Station, Biggs. Comment
  UCD61106  Echinochloa muricata L. E. Hazeltine 1916-7-25 Butte Chico. Comment
  CDA1993  Echinochloa oryzicola G. D. Barbe, T. C. Fuller 1977-9-2 2335 Butte Rice Experiment Station, Biggs. 0 Comment
  UCR136870  Echinochloa oryzicola var. mutica Beecher Crampton 1957-9-17 4626 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
  POM365245  Echinochloa oryzoides 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
  SEINET239848 Image available Echinochloa oryzoides E. Dean, J. Ditomaso; E. Healy 2001-8-20 853 Butte Biggs UC Field Station 30 Comment
  CHSC115337  Elatine Lowell Ahart 2015-4-24 20067 Butte Normal size plants, on damp bare soil, bottom of a large duck field. 19 Comment
  JEPS123910  Elatine Lowell Ahart 2015-4-24 20074 Butte About 2 miles east of Pennington Road, Gray Lodge Wildlife Area, about 3 1/2 miles (air) southwest of Gridley. Comment
  CHSC112606  Elatine ambigua Lowell Ahart 2013-9-20 19061 Butte Along a ditch, about 100 yards west of the railroad, about 400 yards south of the Rice Experiment Station buildings, about 2 miles southeast of Richvale. 30 Comment
  CHSC74724  Eleocharis B. Castro; L. Gehrung 1998-7-2 797 Butte Ca 6 air mi NW of Brush Creek, ca 1 mi SE of Hungry Hunt Peak, ca 50 ft N of USFS Rd 23N28 as it loops around a drainage. 1021 Comment
  CHSC11931  Eleocharis acicularis E. B. Copeland 1929-7-19 344 Butte Jonesville. 1550 Comment
  RSA4221  Eleocharis acicularis var. acicularis E. B. Copeland 1929-7-19 344 Butte Jonesville. 1550 Comment
  CHSC94332  Eleocharis decumbens Lowell Ahart 2006-7-25 13060 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
  CAS-BOT-BC113373  Eleocharis engelmannii Lowell Ahart 1974-11-9 s.n. Butte In rice field, Peter Ahart ranch, Honcut 45 Comment
  CHSC78192  Eleocharis engelmannii Lowell Ahart 2000-6-4 8445 Butte In the small meadow south of the intersection of Black Bart Road and Forbestown Road, about 3 1/2 miles (air) southwest of Forbestown. 731 Comment
  CHSC56613  Eleocharis macrostachya L. P. Janeway 1988-6-26 2886 Butte Southeast rim of Coon Ridge overlooking Nance Canyon; ca 0.6 mi northeast of the high-voltage power-lines. 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
  CHSC33713  Eleocharis pachycarpa J. D. Jokerst; R. A. Schlising, B. Banchero 1981-6-13 1336 Butte N of and adjacent to Hwy 162 opposite Lake Madrone. 600 Comment
  JEPS115999  Eleocharis parishii Lowell Ahart 2009-6-19 15923 Butte On the east side of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 236 Comment
  SEINET9770291 Image available Eleocharis quadrangulata Richard Carter 2006-7-31 Butte ca. 4 airmiles S Oroville jct. Hwy CA 70 and Hwy CA 162, Oroville Wildlife Area Comment
  CHSC78202  Eleocharis quinqueflora Lowell Ahart 2000-5-23 8386 Butte Along a large wash, northeast of the pond, about 1/8 mile north of La Porte Road, about 1/2 mile southeast of the Honcut Cemetery, about 4 miles northeast of Honcut, about 13 miles (air) southeast of Oroville. 54 Comment
  CHSC78305  Eleocharis quinqueflora Lowell Ahart 2000-6-27 8530 Butte Seeps, on the north side of Bean Creek Road, about 1/4 mile southeast of Little Bald Rock, about 4 miles (air) northeast of Madrone Lake, about 13 miles (air) northeast of Oroville. 1066 Comment
  JEPS98613  Eleocharis quinqueflora Lowell Ahart 2000-6-27 8530 Butte Seeps, on the north side of Bean Creek Road, about 1/4 mile southeast of Little Bald Rock, about 4 miles (air) northeast of Madrone Lake, about 13 miles (air) northeast of Oroville. 1066 Comment
  SEINET7587005 Image available Eleocharis quinqueflora Lowell Ahart 2000-7-5 8553 Butte West of the cow chute and the large parking area on the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 404 Comment
  SEINET13710126  Eleocharis suksdorfiana Lowell William Ahart, Lowell William Ahart 2000-1 8552 Butte 4.5 Mi. N of Stirling City (T25N, R4E, sec 33, SW 1/4) 4300 Ft. 1311 Comment
  CHSC38816  Eleusine indica Vernon Oswald 1983-10-3 1051 Butte Upper Bidwell Park, Chico, at the north entrance to the parking lot at Hooker Oak Recreation Area. Roadside. 79 Comment
  POM319562  Elymus Patricia Wilder 1971-6-23 5285 Butte Magalia: north of Paradise; Coutelenc Road, just north of junction with Skyway Road, along railroad track. West slope of Sierra Nevada Mt. Range 732 Comment
  RSA755038  Elymus elymoides subsp. californicus L. Ahart 2009-5-15 15683 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
  CHSC44454  Elymus glaucus Lowell Ahart 1988-5-30 6015 Butte Near the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 274 Comment
  CAS-BOT-BC203428  Elymus glaucus subsp. glaucus John Thomas Howell 1961-9-22 36736 Butte Bank of Feather River, Oroville 53 Comment
  CHSC102502  Elymus glaucus subsp. jepsonii Lowell Ahart 2009-5-30 15795 Butte About 50 yards south of the fence and about 120 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 269 Comment
  CHSC65611  Elymus glaucus subsp. jepsonii L. P. Janeway 1995-7-27 4878 Butte Top of Jackson Ranch Ridge, along Road 21N25Y ca 0.6 mi east of the western end of the ridge. 1143 Comment
  CHSC108856  Enemion occidentale Lowell Ahart 2012-2-22 17746 Butte On the east bank of South Rim Trail, about 1/4 mile southwest of the pond, about 5/8 mile west of Highway 32, about 8 3/4 miles (air) northeast of Chico. 254 Comment
  CHSC29022  Enemion occidentale M. S. Taylor; J. D. Jokerst, L. Ahart 1980-4-4 2460 Butte On s side of Swedes Flat Rd, ca. 1 mi e of its jct with Bangor-Oroville Hwy, ca. 10 mi se of Oroville. 335 Comment
  SEINET6635565 Image available Epilobium angustifolium subsp. circumvagum H. F. Copeland 1928-1 443 Butte neighborhood of Jonesville; above Jones Creek 1829 Comment
  UCD105294  Epilobium brachycarpum A. A. Heller 1916-9-5 12648 Butte 8 miles N of Oroville. Comment
  CHSC32125  Epilobium canum subsp. latifolium L. Ahart 1975-9-4 970 Butte Along South Fork of Feather River ca. 0.5 mi n of Golden Trout Crossing. 762 Comment
  CHSC46679  Epilobium canum subsp. latifolium V. Oswald; L. Ahart 1989-8-15 3946 Butte Outcrop between High Lakes Rd and Carr Mine, ca. 2 mi (air) e of Philbrook Reservoir. 1920 Comment
  SEINET10453052  Epilobium canum subsp. latifolium Mary Susan Taylor 1979-10-13 Taylor 2249 Butte T22N R4E sw 1/4 sec 21. Riparian Woodland along creek crossing Jordan Hill Road (Ponderosa Way on some maps), ca. 0.8 mi N of its jct with Concow Road, ca. 5 mi E of Paradise. With J.D. Jokerst. 427 Comment
  CHSC113171  Epilobium ciliatum subsp. ciliatum Lowell Ahart 2013-11-13 19246 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
  POM183926  Epilobium ciliatum subsp. ciliatum H. F. Copeland 1932-08 s.n. Butte Jonesville, in woods along Butte Creek 1500 Comment
  UCD105781  Epilobium ciliatum subsp. ciliatum L. E. Hazeltine 1916-7-16 s.n. Butte Appleton. Comment
  CHSC94617  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2006-9-11 13287 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
  JEPS117420  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2010-9-28 17248 Butte On damp rocky soil, along west side of Big Kimshew Creek, about 100 yards east of the poor dirt road, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrood Reservoir 1886 Comment
  UC398938  Epilobium ciliatum subsp. glandulosum E. B. Copeland 1929-7-25 388 Butte Jonesville 1500 Comment
  CHSC58928  Epilobium densiflorum Lowell Ahart 1992-8-2 6903 Butte In Concow Meadow, about 3 (air) miles north-east of Concow Reservoir. 1097 Comment
  CHSC65170  Epilobium densiflorum Lowell Ahart 1995-8-19 7609 Butte East side of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 3/4 miles east of Honcut, about 12 miles south-east of Oroville. 36 Comment
  JEPS105893  Epilobium densiflorum Lowell Ahart 2004-7-20 11287 Butte On the north side of a deep wash, about 200 yards north of the home, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles (air) south of Oroville 30 Comment
  SEINET3449320  Epilobium densiflorum Unknown 2003-6-30 10330 Butte Forbestown, Forbestown, about 2 air miles northwest, north side of Ponderosa Way, about 1.5 road miles southwest of the Ponderosa Dam 400 Comment
  UC873150  Epilobium densiflorum Lewis S. Rose 1939-6-11 39276 Butte 6 mi e Honcutt 137 Comment
  UC873154  Epilobium densiflorum A. A. Heller 1914-7-13 11564 Butte 10 mi e Oroville (stream banks); Mt. Ida Ranch Comment
  CHSC46574  Epilobium glaberrimum subsp. glaberrimum Vernon Oswald 1987-7-16 3132 Butte Bull Hill Rd. (Skyway) where it parallels Bull Creek, between Inskip and Butte Meadows. On the edge of the creek. 1487 Comment
  CHSC23422  Epilobium minutum T. Rinker 1974-4-30 29 Butte On side of canyon ca. 40 yds n of Cohasset Rd., ca. 7.9 mi ne of Chico Municipal Airport. 518 Comment
  CHSC26796  Epilobium minutum M. S. Taylor 1978-5-6 1572 Butte By RR tracks, Magalia. 609 Comment
  CHSC70334  Epilobium minutum R. A. Schlising 1983-6-9 4419 Butte N part of county, along Humboldt Road, 1.9 mi NE of junction with Hwy 32 at Lomo. Carpenter Ridge. 1356 Comment
  CHSC70342  Epilobium minutum R. A. Schlising 1980-6-17 3732 a Butte Along Skyway, N of Magalia and De Sabla, ca. 1.5 mi SW of junction with Coutelenc Road at Lovelock. 780 Comment
  CHSC46455  Epilobium oregonense V. Oswald; L. Ahart 1989-6-27 3824 Butte Humbug Rd at Butte Creek House, ca. 3.3 mi (air) se of Jonesville. In a meadow along Butte Creek. 1767 Comment
  CHSC38564  Epilobium torreyi Vernon Oswald 1983-5-30 577 Butte Upper Bidwell Park, Chico, on the north rim ca. 0.6 mi e of the power lines. 304 Comment
  CHSC46384  Epilobium torreyi Lowell Ahart 1989-5-23 6257 Butte Along the edges of Avocado Road, about 1/2 mile west of the Oroville Bangor Highway, about 1 mile north-west of Bangor. 213 Comment
  JEPS127074  Epilobium torreyi Lowell Ahart 2016-5-30 20898 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
  CHSC28760  Epipactis gigantea J. D. Jokerst 1979-6-16 142 Butte Upper Bidwell Park, Big Chico Cr. 167 Comment
  RSA754451  Epipactis gigantea Lowell A. Ahart 2009-6-3 15833 Butte On E side of Big Chico Creek, SW of the meadow, about 30 yards W of Ten Mile House Road, Upper Bidwell Park, about 3/4 air miles W of Highway 32, about 10 miles NE of Chico. 209 Comment
  CHSC28508  Equisetum arvense M. S. Taylor; J. D. Jokerst 1979-10-13 2251 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
  CHSC11938  Equisetum hyemale subsp. affine E. B. Copeland 1929-7-6 330 Butte Jonesville. Comment
  CHSC66068  Equisetum laevigatum Vernon H. Oswald 1996-5-22 7617 Butte U. S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Sacramento River National Wildlife Refuge, Llano Seco Unit. 30 Comment
  CHSC87800  Equisetum laevigatum Paul Maslin 2004-4-15 17 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). UTM: 10610629E 4414004N. On edge of Big Chico Creek. 274 Comment
  CHSC38819  Eragrostis cilianensis Vernon Oswald 1983-6-29 792 Butte Upper Bidwell Park, Chico, ca. 300 ft w of Day Camp. In the bed of an oxbow of Chico Creek. 91 Comment
  CHSC45212  Eragrostis cilianensis Lowell Ahart 1984-10-5 4813 Butte In pasture fields, Peter Ahart Ranch, about 1 1/2 miles north and 1 3/4 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC97293  Eragrostis cilianensis Lowell Ahart 2007-8-19 14490 Butte About 2 1/4 miles (air) southeast of Honcut, about 13 miles (air) southeast of Oroville. 49 Comment
  CHSC49240  Eragrostis hypnoides Vernon Oswald 1984-6-3 1252 Butte Sacramento River, ca. 0.5 mi downstream from the mouth of Stony Creek. On the edge of the river. 39 Comment
  CHSC75983  Eragrostis hypnoides Lowell Ahart; Vernon H. Oswald 1999-8-13 8151 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
  JEPS103447  Eragrostis hypnoides Lowell Ahart 2002-10-17 10001 Butte Bottom of a wash, between the gentle hills below the high water line of Lake Oroville, ca 1 1/2 miles S of Highway 162 (Oroville Quincy Highway), ca 3 miles (air) NE of Oroville Dam. 227 Comment
  JEPS95948  Eragrostis hypnoides Lowell Ahart 1999-8-13 8151 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
  CHSC34778  Eragrostis mexicana subsp. virescens L. Ahart 1981-11-6 3229 Butte Ca. 1/8 mi e of Gridley Bridge across the Feather River, ca. 2 mi w of Hwy 70, ca. 4 mi e of Gridley. Along edge of the road. 35 Comment
  UCD63884  Eragrostis mexicana subsp. virescens John Thomas Howell 1959-9-20 34675 Butte Sierra Nevada, lower foothills, eastern outskirts of Oroville. 60 Comment
  CHSC66458  Eragrostis pectinacea var. pectinacea Vernon H. Oswald; Lowell Ahart 1996-6-10 7733 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 river at the N end of the Riparian Sanctuary. 28 Comment
  JEPS110298  Eragrostis pectinacea var. pectinacea Lowell Ahart 2006-9-11 13338 Butte South side of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville 431 Comment
  JEPS76254  Eragrostis pectinacea var. pectinacea W. L. Jepson 1939-8-17 19465 Butte Feather River bottom near Oroville; Feather River bottom 45 Comment
  SEINET10864765  Eragrostis pilosa A. Arthur Heller 1914-8-20 Heller 11688 Butte Plentiful in a young olive orchard 8 miles north of Oroville near the base of Table mountain. Comment
  JEPS103327  Eragrostis pilosa var. pilosa Lowell Ahart 2002-9-7 9927 Butte On the E side of Cherokee Road, N of the Thermalito Diversion Canal, on the W side of the water purification pond, ca 1 mile N of Oroville. 130 Comment
  JEPS108151  Eremogone cliftonii L. P. Janeway, C. Christofferson, S. Mackey Hillaire, M. Brown 2005-5-11 8388 Butte Northern High Sierra Nevada. Plumas National Forest; upper slope overlooking Lockerman Creek, 0.7 km east of Lockerman Creek and 1.2 km east-northeast of its confluence at Camp Creek 1234 Comment
  CHSC50545  Eremogone congesta var. congesta Vernon Oswald; Lowell Ahart 1990-6-20 4300 Butte High Lakes Rd, 0.2 mi north of its junction with Philbrook Rd, just west of Philbrook Reservoir. 1706 Comment
  CAS-BOT-BC291277  Ericameria bloomeri A. A. Heller 1928-7-25 14704 Butte Butte Creek House Comment
  CHSC61630  Ericameria bloomeri Lowell Ahart 1993-9-8 7172 Butte Ridge top, about 1 mile east of Snow Mountain. 2103 Comment
  UC1609016  Ericameria bloomeri Lowell Ahart 1993-9-8 7170 Butte ridge top about 1 mi e Snow Mountain 2103 Comment
  CAS-BOT-BC296823  Erigeron divergens A. A. Heller; H. E. Brown 1902-5-6 5463 Butte Berry Canyon near Clear Creek Comment
  LA203585  Erigeron inornatus E. B. Copeland; 1930-8-6 490 Butte Jonesville 1550.0 Comment
  CHSC94044  Erigeron inornatus var. inornatus R. D. Fischer 2005-9-7 708 Butte Sierra Nevada foothills, adjacent Hwy. 32, below Forest Ranch on the Big Chico Creek Ecological Reserve and on the north side of the hwy. at Crown Point Road junction. 518 Comment
  RSA699540  Erigeron inornatus var. inornatus R. D. Fischer 2004-6-12 162 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Rocky canyon edge of Humboldt Trail N of Bloody Pin Trail junction 412 Comment
  CAS-BOT-BC295468  Erigeron lassenianus var. lassenianus V. Oswald; L. Ahart 1988-7-26 3617 Butte Snow Mt. region located ca. 6 air mi se of Jonesville 1996 Comment
  CAS-BOT-BC295772  Erigeron petrophilus var. sierrensis Lowell Ahart 1981-7-7 2932 Butte Ca. 0.5 mi. W of the Forbestown Res., NE of Forbestown 750 Comment
  SEINET10473751  Erigeron philadelphicus Lowell Ahart 1985-7-24 Ahart 5155 Butte Below the high water line of the Forbestown Res., about 50 yards sough of the Generator, about 4 1/2 miles north-east of Forbestown. Comment
  CHSC27256  Eriobotrya japonica P. Moyer 1971-2-1 79 Butte CSUC Campus. S bank Chico Ck., at base of sycamore tree, w of L.S.-Ed. Psych. Bridge. 60 Comment
  CHSC112630  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. 51 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
  RSA703154  Eriochloa acuminata var. acuminata L. Ahart 2004-9-14 11400 Butte On the east side of Palermo Honcut Highway, about 20 feet south of Palermo Road, east part of Palermo. 58 Comment
  JEPS128619  Eriochloa contracta Lowell Ahart 2017-8-1 21654 Butte Park west of railroad, northeast of the intersection of Virginia Street and Sycamore Street, in Gridley. Comment
  CHSC679  Eriodictyon californicum A. Goekler 1928-4-25 Butte Bidwell Park 76 Comment
  UCD100510  Eriogonum nudum W. R. Powell 1968-11-12 1614 Butte George Ellis Ranch, 200 yards north of the LaPorte Road and 4 miles southwest of Bangor. 91 Comment
  RSA781350  Eriogonum nudum var. deductum Anna Kostikova, Glenn Litsios, Sarah Burgy 2010-7-1 149 Butte Humboldt road. Comment
  CHSC21237  Eriogonum nudum var. oblongifolium M. S. Taylor 1975-9-19 916 Butte In serpentine area, ca. 1/2 mi n of Magalia, ca. 50 ft e of the Skyway. 609 Comment
  UC725365  Eriogonum nudum var. pubiflorum A. A. Heller 1940-9-28 15839 Butte w Pentz (roadside bank) Comment
  CAS-BOT-BC253051  Eriogonum roseum Lowell Ahart 1989-7-4 6366 Butte On and around graves in the Cementery about 1/2 mile south of Oregon Gulch Road about 1 mile west of Rocky Point, about 10 miles east and 3 miles north of Oroville 335 Comment
  CHSC39087  Eriogonum spergulinum var. reddingianum R. A. Schlising; K. Tarp 1983-8-12 4438 Butte N part of county, NE of Philbrook Reservoir, on road leading to Carr Mine. 1981 Comment
  RSA0005154  Eriogonum umbellatum var. ahartii James L. Reveal 1975-8-24 3977 Butte Along California Highway 70 in Feather River Canyon at the turnoff to Pulga. Comment
  CAS-BOT-BC265214  Eriogonum umbellatum var. speciosum John Thomas Howell 1951-6-26 27524 Butte Near Pulga, Sierra Nevada 417 Comment
  LA207080  Eriogonum ursinum E. B. Copeland; 1930-7-6 sn Butte Jonesville 624 Comment
  CHSC88276  Eriogonum vimineum Lowell Ahart 2004-7-11 11224 Butte On the southeast edge of Paradise Lake, about 3/4 mile northeast of the picnic area, about 1 mile northeast of Paradise Dam, about 4 miles (air) southwest of Stirling City. 814 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
  SEINET10937587  Eriogonum vimineum Mary Susan Taylor 1975-9-19 Taylor 921 Butte Ca. 0.5 mi N of Magalia, ca. 50 ft E of Skyway; serpentine area surrounded by Yellow Pine Forest. 610 Comment
  UCD101524  Eriogonum vimineum John Thomas Howell 1959-9-20 34615 Butte along Feather River near Oroville. 45 Comment
  CHSC63429  Eriophorum gracile V. H. Oswald; L. P. Janeway, L. Hanson, et al. 1994-6-22 6350 Butte Large marshy meadow on the W side of Willow Creek near the Tehama County boundary, ca. 1 mi NW of Jonesville. 1539 Comment
  CHSC95179  Eriophorum gracile R. D. Fischer 2005-6-5 22 Butte Chico Meadows. Northern Sierra Nevada, n. of Forest Ranch, 5 miles w. of Hwy 32 off Humboldt Road to Butte Meadows and ca. 3 miles n. to Chico Meadow (Camp Lassen, BSC) on Scout Road. Plant growing in wet portion of Chico Meadow above pond. 1280 Comment
  LA203593  Eriophyllum lanatum E. B. Copeland; 1930-7-11 492 Butte Jonesville, near the head of North Willow Creek 1550.0 Comment
  POM53933  Eriophyllum lanatum var. grandiflorum A. A. Heller, H. E. Brown 1902-5-7 5483 Butte Berry Canyon (Near Clear Creek). Comment
  UC1080207  Eriophyllum lanatum var. grandiflorum L. R. Heckard, J. R. Sweeney 1953-4-27 341 A Butte above Feather River (Calif. Highway No.24, 15.5 mi ne Oroville); Calif. Highway No.24 304 Comment
  UC179658  Eriophyllum lanatum var. grandiflorum A. A. Heller 1914-6-22 11484 Butte near Butte Meadows; Little Summit 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
  CHSC101331  Erodium cicutarium Lowell Ahart 2009-4-22 15579 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
  CHSC33689  Erodium cicutarium L. Ahart 1981-3-29 2712 Butte Along the edge of Ponderosa Way, near the Ponderosa Dam, near Forbestown. 350 Comment
  CHSC99320  Erodium cicutarium Lowell Ahart 2008-5-21 14765 Butte Below the high water line of Lake Oroville, on the south side of the South Fork of the Feather River, where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 246 Comment
  CHSC71180  Erodium moschatum Lowell Ahart 1998-6-9 8002 Butte About 5/8 mile northwest of the lone oak tree, northwest of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 396 Comment
  SEINET10495135  Erodium obtusiplicatum Mary Susan Taylor 1975-2-16 Taylor 374 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
  CHSC61504  Erythranthe bicolor Lowell Ahart 1993-6-20 6993 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC113492  Erythranthe breviflora Lowell Ahart 2014-7-10 19615 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1664 Comment
  CHSC105166  Erythranthe glaucescens Christopher T. Ivey 2007-3-31 370 Butte Big Chico Creek Ecological Reserve. 360 Comment
  CHSC78102  Erythranthe glaucescens Caleb E. Casey 1999-4-6 Butte Bear Hole, Upper Bidwell Park. Found near Chico creek along old diversion canal. 121 Comment
  CHSC9274  Erythranthe glaucescens D. C. Burns 1971-4-2 113 Butte Along Cohasset rd. on s side of road, ca. 4.7 mi w of intersection of Cohasset rd. and Vilas rd. 173 Comment
  CHSC40891  Erythranthe guttata Lowell Ahart 1985-6-17 5056 Butte 100 yards south of the dirt road, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 975 Comment
  SEINET8340799  Erythranthe latidens A. A. Heller 1914-5-1 11343 Butte on the Chico-Hamilton road, 6 miles from Chico in a low grain field. Comment
  CHSC90170  Erythranthe microphylla Jose Romero 1983-4-20 2 Butte Site located on the Oroville Wildlife Area. Junction of Larkin and Timothy Rds., 4 mi. s.w. of Oroville. 45 Comment
  CHSC27064  Erythranthe nasuta Lowell Ahart 1978-5-1 1677 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC44779  Erythranthe nasuta R. Banchero 1980-3-15 64 Butte Along Cohasset Hwy 11.9 mi N of Chico, 5.6 mi NE of first jct of Cohasset Hwy and Rock Creek Rd. 323 Comment
  CHSC11896  Erythranthe primuloides E. B. Copeland 1929-7-13 459 Butte Jonesville. 1550 Comment
  SD4668  Erythranthe primuloides E. B. Copeland 1929-7-13 459 Butte Joneville, clear openings in woods 1550 Comment
  SBBG17080  Erythronium citrinum M. Vincent 1961-3-27 19 Butte 1 mi N of Magalia 762 Comment
  CHSC33565  Erythronium multiscapideum M. S. Taylor; L. Hanson 1981-4-21 3551 Butte W side and downslope from spur rd (to Old Utah Mine) off Ponderosa Way (Jordan Hill Rd) ca. 1 air mi ne of Magalia. 853 Comment
  CHSC88662  Erythronium multiscapideum Linnea Hanson 1983-4-6 178 Butte Plumas National Forest. East side of West Branch of Feather River. 1005 Comment
  CAS-BOT-BC504521  Erythronium multiscapideum Mrs. J. H. Morrison 1932-3-13 s.n. Butte Durham Comment
  CAS-BOT-BC504535  Erythronium multiscapideum John Thomas Howell; Gordon H. True 1969-4-9 45492 Butte Magalia 701 Comment
  HSC72760  Erythronium multiscapideum M. S. Taylor, D. V. Hemphill 1981-3-18 3422 Butte Near and W of bridge crossing W Branch of Feather River on Ponderosa Way 488 Comment
  CAS-BOT-BC402968  Eschscholzia californica A. A. Heller 1914-4-3 s.n. Butte Hills 8 miles north of Oroville Comment
  CAS-BOT-BC402972  Eschscholzia californica Grace Kermode 1899-6-9 s.n. Butte Chico Comment
  CHSC112099  Eschscholzia californica Lowell Ahart 2012-6-21 18220 Butte On the south side of Big Chico Creek, about 5 yards east of the Freewy, Lower Bidwell Park, Chico. 62 Comment
  CHSC99652  Eschscholzia californica H. Koeth 2007-4-26 Butte 20th and Salem St., Chico. Growing in an unmanaged lawn. UTM 10 600693E 4396754N 57 Comment
  SEINET3296966 Image available Eschscholzia californica A. A. Heller 1938-4-23 15052 Butte West side of the summit on the Feather River Highway ne near the Yankee Hill road. Comment
  RSA21633  Eschscholzia californica var. crocea Carl B. Wolf 1937-6-12 8787 Butte Sacramento Valley, 1 mi. no. of Durham. 46 Comment
  UC204950  Eschscholzia lobbii A. A. Heller 1914-3-7 11188 Butte 8 mi n Oroville Comment
  HSC86836  Eschscholzia lobbii Debby Reber 1981-4-14 18 Butte 1/4 mi. SW of Horseshoe Lake 91 Comment
  SBBG17169  Eschscholzia lobbii M. Vincent 1961-3-27 40 Butte Table Mtn, 3 mi E of Cherokee 762 Comment
  SEINET10476228  Eschscholzia lobbii Mary Susan Taylor 1980-4-6 Taylor 2453 Butte On S side of Melody Lane, ca. 1 mi E of its junction with Honcut-Palermo Rd, ca. 5 mi S of Palermo. With L. Ahart & J.D. Jokerst. 38 Comment
  CHSC48614  Eucalyptus camaldulensis Vernon Oswald 1987-7-4 3090 Butte Rancho Aquas Frias. Nelson West Rd. at 7-Mile Lane, between Chico and Butte City. 30 Comment
  CHSC48128  Eucephalus breweri Vernon H. Oswald 1987-7-13 3109 Butte Summit Lake on the N side of Snow Mt, ca. 4 mi (air) SE of Jonesville. 1901 Comment
  SEINET10493553  Euphorbia Mary Susan Taylor 1979-7-21 Taylor 2156 Butte Humboldt Peak, at Humboldt Summit, tallest point in the county, on Butte- Tehama County line. 2155 Comment
  SEINET10453750  Euphorbia crenulata Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4069 Butte T20N R5E sec 5. Along Bloomer Hill Rd, ca. 0.5 mi w of Oroville-Quincy Hwy, ca. 15 mi ne of Oroville. Foothill Woodland. 400 Comment
  CHSC104841  Euphorbia maculata Lowell Ahart 2010-6-25 16838 Butte In the planter areas, in the parking area at Bidwell Mansion, Chico. 60 Comment
  CAS-BOT-BC202422  Euphorbia ocellata A. A. Heller 1927-9-5 14469 Butte About 3 miles east of Chico Comment
  CHSC96242  Euphorbia spathulata R. Fischer 2006-4-21 985 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east -side addition along Hwy. 32. Plants growing on a grassy hillside east of Big Chico Creek at the bottom of 10 Mile House Road, ca. 250 ft. s of gated park property line. 228 Comment
  JEPS110142  Festuca Lowell Ahart 2006-5-19 12635 A Butte On the west side of the dirt road, Bardees Bar Road, south of the small stream, about 1/4 mile southwest of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga 405 Comment
  CHSC102176  Festuca arundinacea Lowell Ahart 2009-5-30 15797 Butte About 20 yards south of the fence and about 30 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 269 Comment
  CHSC49545  Festuca arundinacea Vernon Oswald 1985-5-13 1756 Butte Upper Bidwell Park, Chico, on the s perimeter of the Police Pistol Range. 91 Comment
  JEPS120010  Festuca bromoides Lowell Ahart, Linnea Hanson, Kaline Le Coq, Josephine Guardino 2012-4-27 17906 Butte Southwest of the intersection of Valllombrosa Avenue and Manzanita Avenue, Lower Bidwell Park, Chico. 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-BC77690  Ficus carica John Thomas Howell 1959-9-20 34712 Butte Feather River Highway at West Branch bridge 152 Comment
  CHSC13519  Fragaria vesca A. R. Morrison 1974-4-20 Butte On trail to Feather Falls, ca. 2 mi. upstream from Lake Oroville. Comment
  CAS-BOT-BC62905  Frangula californica subsp. tomentella A. A. Heller 1912-5-23 10753 Butte Table Mountain Olive Ranch n. of Oroville. Comment
  HSC18389  Frangula californica subsp. tomentella L. S. Rose 1968-6-12 68113 Butte Feather River Canyon, Pulga 488 Comment
  CAS-BOT-BC62908  Frangula californica subsp. tomentella A. A. Heller 1915-5-17 11882 Butte Canyon of Chico creek 5 mi. e. of Chico. The type was collected about 50 mi. to the s., probably along the Bear River. Comment
  CHSC34146  Frangula purshiana L. Ahart 1981-9-15 3151 Butte Along edge of rd, ca. 1/2 mi n of Lost Creek Reservoir, along Pinkard Creek. 1100 Comment
  SEINET7417508 Image available Frangula purshiana A. A. Heller 1919-1 13157 Butte Feather River near Stirling [City] Comment
  CAS-BOT-BC53825  Frangula rubra A. A. Heller 1914-5-18 11404 Butte Between Chico and Forest Ranch, 14 miles from Chico. 731 Comment
  SEINET10454870  Frasera albicaulis subsp. nitida Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4085 Butte T21N R5E sec 31. Along Bloomer Hill Rd, ca. 1.3 mi w of Oroville-Quincy Hwy, ca. 15 mi ne of Oroville. Foothill Woodland; 450 m. 450 Comment
  CHSC109662  Fraxinus profunda Lowell Ahart; Susan Bazell, Josephine Guardino, Wes Dempsey 2012-7-5 18273 Butte Path in Cedar Grove, west of parking area. Lower Bidwell Park, Chico. 71 Comment
  SEINET10871601  Fremontodendron californicum Mary Susan Taylor 1980-5-15 Taylor 2638 Butte T23N R2E ne sec 7. In and around vernal pools in Chaparral area on Cohasset Ridge, ca. 1/4 mi E of Cohasset Rd, ca. 9 mi NE of Chico. 396 Comment
  SEINET10838744  Fremontodendron decumbens Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4084 Butte T21N R5E sec 31. Along Bloomer Hill Rd, ca. 1.3 mi w of Oroville-Quincy Hwy, ca. 15 mi ne of Oroville. Foothill Woodland; 450 m. 450 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
  CDA14072  Fritillaria eastwoodiae G. F. Hrusa, T. D. Wilfred 1997-5-1 13719 Butte Sierra Nevada; NE side of upper end of Paradise Lake. Where last tributaries from E enter. Comment
  RSA0000355  Fritillaria eastwoodiae J. H. Morrison 1932-4-17 s.n. Butte Near Durham. Comment
  SEINET10469653  Fritillaria eastwoodiae Mary Susan Taylor 1981-3-16 Taylor 3404 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
  CAS-BOT-BC130424  Fritillaria pluriflora A. A. Heller 1916-3-5 12278 Butte Along the highway 10 miles north of Chico Comment
  CHSC37264  Galium aparine L. Ahart 1982-6-15 3569 Butte Ca. 1.5 mi E of Camp 18, ca. 8 mi E of Feather Falls. 1000 Comment
  CHSC113490  Galium bifolium Lowell Ahart 2014-7-10 19616 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1664 Comment
  SEINET10500724  Galium murale Mary Susan Taylor 1980-4-16 Taylor 2494 Butte T21N R4E s sec 17 Cherokee quad. Lake Oroville State Recreation Area, up to 0.5 mi SE of Parish Camp, just S of Lime Saddle Memorial Park, ca. 5 mi S of Paradise; Foothill Woodland. 305 Comment
  CHSC46460  Galium trifidum var. pusillum V. Oswald; L. Ahart 1989-6-27 3825 Butte Humbug Rd at Butte Creek House, ca. 3.3 mi (air) SE of Jonesville. 1767 Comment
  CAS-BOT-BC303383  Gamochaeta ustulata Lowell Ahart 1985-5-31 5036 Butte About 0.25 mile W of the Enterprise Launch Area about 25 ft above the high water line of Lake Oroville, NE of Oroville 274 Comment
  CHSC11984  Garrya fremontii E. B. Copeland 1932-7-27 667 Butte Jonesville. 1650 Comment
  SFV11166  Garrya fremontii M. L. Vincent 1964-4-10 560 Butte Highway 32, 10 miles northeast of Chico. 520 Comment
  SEINET10453489  Garrya fremontii Mary Susan Taylor, E. Pierce 1981-1-29 Taylor 3375 Butte Both sides of Cohasset Hwy, ca. 3 mi s of Cohasset. Chaparral. Comment
  SEINET10453490  Garrya fremontii Mary Susan Taylor 1979-10-13 Taylor 2260 Butte T22N R4E n half sec 17. Foothill Woodland on Jordan Hill Road (Ponderosa Way on some maps), ca. 4.8 mi N of its jct with Concow Road, ca. 2 mi E of Paradise. With Jim Jokerst. 610 Comment
  CAS-BOT-BC282606  Gastridium phleoides John Thomas Howell 1962-6-16 37592 Butte 3.5 mi. n. of Pentz, Sierra Nevada 396 Comment
  CDA2169  Gastridium phleoides L. Ahart 2000-5-13 8340 Butte On the south side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. Comment
  CHSC82418  Gastridium phleoides Lowell Ahart 2002-5-7 9639 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
  CHSC97243  Gastridium phleoides Lowell Ahart 2007-6-3 13978 Butte On the east side of Jordan Hill Road, about 1 1/2 miles northwest of Concow Creek, about 1 1/2 miles west of Concow Reservoir. 358 Comment
  SEINET3441865  Gastridium phleoides Unknown 2003-6-29 10319 Butte Brownsville, Brownsville, about 1 air miles west, east side of Ponderosa Way, about 1.5 miles north of La Porte Road 700 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
  UC600544  Gayophytum humile H. F. Copeland 1932-7-24 Butte Butte Creek Canyon Jonesville (w wall, near headwaters) Comment
  CHSC48451  Gentianella amarella subsp. acuta Vernon Oswald; Lowell Ahart 1987-8-5 3191 Butte Scotts John Creek 0.6 mi n of the road connecting Humboldt and Humbug roads. 1780 Comment
  CHSC113300  Geranium dissectum Lowell Ahart 2014-4-9 19341 Butte Bottom of a drying pond, about 100 yards west of the parking area, west end of West Liberty Road, about one mile (air) south of Colusa Highway, about 7 miles (air) southwest of Gridley. 19 Comment
  RSA0045624  Geranium dissectum Lowell A. Ahart 2012-4-30 17926 Butte 20 yards north of the table at the old homestead, about 20 yards southeast of the intersection of South Rim Trail and Ten Mile House Road, about 5/8 mile west of Highway 32, about 9 miles (air) northeast of Chico, south part of Upper Bidwell Park. 250 Comment
  SEINET10495122  Geranium dissectum Mary Susan Taylor 1979-5-6 Taylor 1993 A Butte Peter & Lowel Ahart Ranch, Honcut; Valley Grassland. Comment
  RSA31676  Gilia capitata subsp. mediomontana A. A. Heller 1938-5-28 15112 Butte along the Feather River Highway, 22 miles from Oroville Comment
  CHSC52451  Gilia tricolor Ken R. Pearson 1983-4-14 9 Butte Ca 120 m NW of Rock Cr, 0.5 km E of Meridian Rd, 6.7 km NNW of Chico. 67 Comment
  SEINET12350112  Gilia tricolor subsp. tricolor Unknown 1998-4-11 7 Butte Chico, Upper Bidwell Park about 1 km E of Horseshoe Lake, along gravel road that follows Chico Creek 104 Comment
  CHSC30823  Githopsis specularioides M. S. Taylor; J. D. Jokerst 1980-4-18 2526 Butte On dry open bluff, on e side of Humbug Rd, ca. 3 mi sw of Nimshew. 518 Comment
  UCSB40621  Githopsis specularioides Reisentz, Paul 1979-5-13 Butte 3 miles up Corcow Road from Hwy 70 Comment
  CHSC45500  Gleditsia triacanthos Lowell Ahart 1988-10-28 6190 Butte On the south side of Lower Honcut Road, about 1/2 mile west of the Southern Pacific Railroad, about 2 miles west of Honcut. 30 Comment
  CHSC51001  Glinus lotoides Lowell Ahart 1990-7-2 6537 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
  CAS-BOT-BC434994  Glinus lotoides Lowell Ahart 1986-11-9 5437 Butte About 1/10 mile south of the clay burrow for Oroville Dam, 1/4 mile east of Larkin Road, about 6 miels south-west of Oroville 36 Comment
  JEPS87474  Glyceria declinata Lowell Ahart 1993-4-5 6927 Butte s. side of Cottonwood Rd. ca. 1/2 mi. e. of Hwy. 99 36 Comment
  SEINET10843174  Glyceria elata A. Arthur Heller 1928-7-10 Heller 14694 Butte Wet meadows at Butte Meadows in the yellow pine belt. Comment
  SEINET10475151  Gnaphalium microcephalum var. thermale Mary Susan Taylor 1977-7-15 Taylor 1419 Butte Along West Branch of the Feather River, ca. 1 mi E of the Skyway, ca. 1 mi N of Magalia. Riparian Woodland. 678 Comment
  CAS-BOT-BC302466  Gnaphalium palustre Mrs. C. C. Bruce 1897-6-1 2110 Butte Little Chico Comment
  CAS-BOT-BC302469  Gnaphalium palustre A. A. Heller 1917-7-28 12827 Butte Butte Meadows 1280 Comment
  CHSC46926  Gnaphalium palustre Lowell Ahart 1974-5-31 461 Butte Small wash, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC75353  Gnaphalium palustre Lowell Ahart 1999-6-12 8086 Butte High water line on the south side of the reservoir, 50 yards east of the dam, north of Beatson Hollow, North Table Mountain, about 2 1/2 miles (air) west of the entrance gates along the west side of Cherokee Road, about 7 miles (air) north of Oroville. 297 Comment
  JEPS120700  Gnaphalium palustre Lowell Ahart 2013-10-26 19207 Butte On south side of Philbrook Creek, below the high water line (strand) of Philbrook reservoir. Comment
  SEINET10475274  Gnaphalium thermale Mary Susan Taylor 1977-8-17 Taylor 1500 Butte On E side of the Skyway, at Inskip. 1615 Comment
  SEINET10839605  Goodyera oblongifolia Mary Susan Taylor 1978-9-9 Taylor 1920 Butte Along the Skyway in the village of Inskip. 1468 Comment
  SEINET6167160  Goodyera oblongifolia P. B. Kennedy 1901-8-15 407 Butte Bearmans camp, north fork of American River Comment
  CHSC44429  Gratiola ebracteata Lowell Ahart 1988-5-29 6009 Butte About 1/10 mile north-east of the old barn, about 1/2 mile north-east of the Honcut Cemetery, Joie Osgood Ranch, about 3 1/2 miles east and 1 1/2 miles north of Honcut. 60 Comment
  JEPS103378  Gratiola ebracteata Lowell Ahart 2002-4-24 9533 Butte Vernal pools and swales, in a field, on the E side of Lone Tree Road, ca 1 1/8 miles N of Cox Lane, ca 3 miles (air) SW of Palermo, ca 7 miles (air) S of Oroville. 35 Comment
  JEPS104637  Grindelia hirsutula Lowell Ahart 2003-7-30 10462 Butte At the trail head to Bald Rock Dome, ca 1/8 mi e of Bean Creek Rd, ca 1 1/4 mi (air) se of Little Bald Rock, ca 4 mi (air) se of Brush Creek. 801 Comment
  CHSC37648  Grindelia hirsutula var. davyi T. B. Devine 1981-8-25 749 Butte Along Durham-Pentz Road, at its junction with Pentz-Magalia Hwy. 205 Comment
  UC392205  Hackelia nervosa E. B. Copeland 1929-7-17 Butte above Jonesville 2000 Comment
  CAS-BOT-BC508210  Hastingsia alba H. F. Copeland 1920-8-21 215 Butte Ridge above Butte Creek in Spring Comment
  CHSC38357  Hedypnois cretica Vernon Oswald 1983-5-4 423 Butte Upper Bidwell Park, Chico, along the e border of the parking lot at Day Camp. 91 Comment
  CDA35648  Helenium bigelovii J. R. Keck Jr. 1985-7-25 PDR# 331426 Butte Jones Meadow, near Stirling City. Lassen National Forest. 0 Comment
  SEINET10891993 Image available Helenium bigelovii R. M. Austin Austin 790 Butte Colby. Comment
  CHSC35991  Helianthella californica var. nevadensis J. D. Jokerst 1982-5-8 1567 Butte N of Forbestown along Ponderosa Way 3/10 mi. N of its jct with Lower Forbestown Rd. Comment
  CHSC14125  Heliotropium curassavicum L. V. Ritter 1969-6-15 383 Butte N and T Corporation Land, near Murphy Slough along bank of Sacramento River. Comment
  CHSC108137  Heliotropium europaeum Lowell Ahart 2011-10-30 17732 Butte Garden, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 33 Comment
  CHSC21381  Hemerocallis fulva M. S. Taylor 1975-6-22 782 Butte On s side of Big Chico Creek, ca. 50 ft e of Little Cafeteria, California State University Chico. Comment
  CDA7021  Hemizonia congesta subsp. luzulifolia A. C. Browne 1951-8-23 Butte Robinson s Corners, Gridley-Oroville Road. 0 Comment
  CDA7022  Hemizonia congesta subsp. luzulifolia T. C. Fuller 1964-10-6 12676 Butte Northwest corner of Hamilton City Road & Highway 99E to Chico, 2 miles north of Biggs. 0 Comment
  CHSC45571  Herniaria hirsuta subsp. hirsuta Lowell Ahart 1978-6-17 1778 Butte Along roadways, about 1 mile north and 1 mile east of Honcut, about 12 miles south of Oroville. 38 Comment
  CHSC44868  Hesperevax acaulis var. robustior Lowell Ahart 1979-4-17 1828 Butte On a bank of North Honcut Creek, about 1/2 mile north of Avacado Avenue, about 3 air miles north-west of Bangor. 91 Comment
  HSC1208  Hesperocyparis macnabiana C. E. Fellows 1965-12-29 215 Butte Coutelenc Rd. 0.5 mi. NNW of Magalia 701 Comment
  SD40685  Hesperocyparis macnabiana Carl B. Wolf, E. R. Johnson 1934-10-5 Butte Sierra Nevada Foothills, at Magalia 700 Comment
  CHSC47435  Hesperolinon micranthum Lowell Ahart 1979-5-29 1890 Butte About 1/4 mile north of Kunkle Reservoir, west of Kunkle Creek, about 2 1/2 miles south-east of Paradise. 487 Comment
  UCD110549  Hesperolinon micranthum P. Rodriguez-Rojo; D. Sanchez-Mata 1997-8-16 s.n. Butte Magalia. Westside Magalia Res. 310 Comment
  SEINET10903214  Hesperolinon micranthum Mary Susan Taylor 1978-5-6 Taylor 1575 Butte Just N of Magalia, in large serpentine area along the Skyway. 610 Comment
  SEINET10905358  Heteranthera limosa Mary Susan Taylor 1978-7-22 Taylor 1847 Butte Ca. 20 ft E of the Midway, ca. 7 mi S of Durham, S of Chico, in rice field. 30 Comment
  CHSC116746  Heterocodon rariflorum Lowell Ahart 2016-5-24 20858 Butte About 50 yards north of the ditch, about 150 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. 44 Comment
  CHSC78242  Heterocodon rariflorum Lowell Ahart 2000-6-27 8527 Butte North part of Big Bald Rock, area is about 100 yards south and west of the north and east forest line,about 3 miles (air) east of madrone Lake, about 12 miles (air) northeast of Oroville. 963 Comment
  SEINET10460699  Heterocodon rariflorum Edwin B. Copel 1929-7-16 Copeland 398 Butte Jonesville 1550 Comment
  CHSC84637  Heteromeles arbutifolia Matt Quinn 2001-3-6 14 Butte Along Green Gate Road (10-mile House Road) on north facing slope on Big Chico Creek Canyon. Approximately 1/4 mile downslope from Highway 32. 365 Comment
  CHSC29785  Heuchera micrantha var. erubescens M. S. Taylor 1982-5-27 2685 Butte On Bald Rock, granite dome, ca. 3 mi e of Lake Madrone. 997 Comment
  CDA7965  Hieracium albiflorum T. C. Fuller 1962-7-12 9193 Butte Road to Jonesville, 2 miles east of Butte Meadows. 0 Comment
  UCD133143  Hieracium albiflorum L. E. Hazeltine 1916-7-16 s.n. Butte Appleton. Comment
  JEPS120024  Hirschfeldia incana Lowell Ahart 2012-10-28 18533 Butte On the north side of Big Chico Creek, south of Table 34, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CHSC39560  Hoita macrostachya Lowell Ahart 1983-7-24 4201 Butte About 1/2 mile south-west of the intersection of the Oroville Forbestown Road and Black Bart Road, about 6 miles south-west of Forbestown. 750 Comment
  CHSC84242  Hoita macrostachya Lowell Ahart 2003-7-17 10420 Butte On the east side of Black Bart Road, about 1/2 mile west of the intersection of Forbestown Road and Black Bart Road, about 4 miles (air) southwest of Forbestown. 716 Comment
  CAS-BOT-BC280714  Holcus lanatus Lowell Ahart 1980-7-4 2460 Butte Along Forbestown Road 750 Comment
  CHSC45112  Holocarpha virgata Lowell Ahart 1976-9-7 1195 Butte Along the edge of Palermo Honcut Highway, about 1/2 mile north of Honcut. 33 Comment
  SD149201  Hordeum brachyantherum Lowell Ahart 1981-5-24 2836 Butte Peter Ahart Ranch, ca. 1.5 mi. N and 1/15 mi. E of Honcut, Valley Grassland 49 Comment
  SEINET10968248  Hordeum depressum Mary Susan Taylor 1978-5-7 Taylor 1598 Butte In and around Richvale vernal pool area, ca. 20 mi S of Chico, on W side of Hwy 99; Valley Grassland. 30 Comment
  CDA34626  Hordeum murinum subsp. leporinum L. Ahart 2009-4-17 15562 Butte On the south slope of a ridge about 150 yards west of Highway 32, near the south boundary, Upper Bidwell Park, about 5 miles (air) northeast of Chico. Comment
  CHSC31717  Hordeum murinum subsp. leporinum L. Ahart 1970-4-16 43 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CAS-BOT-BC143980  Horkelia fusca var. tenella H. F. Copeland 1920-8-2 205 Butte Jonesville Meadow 1219 Comment
  CHSC23677  Horkelia tridentata M. S. Taylor 1976-4-24 1067 Butte Ca. 5 ft e of Oroville-Quincy Hwy, ca. 4 mi ne of Lake Madrone, ca. 13 mi ne of Oroville. Comment
  CHSC40328  Horkelia tridentata Lowell Ahart 1985-5-15 5001 Butte East of a small dry stream, 1/8 mile east of the dirt road, 1 1/2 miles north-east of Concow Res. 731 Comment
  CHSC99565  Horkelia tridentata subsp. tridentata L. P. Janeway 2008-5-26 9387 Butte Northern High Sierra Nevada. Saddle at head of Empire Creek, about 1.6 km west of Flea Valley. 1079 Comment
  CHSC36515  Hosackia stipularis var. ottleyi L. Ahart 1982-6-1 3530 Butte Above road, ca. 1/8 mi n of jct of Lower Forbestown Rd and Ponderosa Way, along Ponderosa Way, ca. 5 mi w of Forbestown. 700 Comment
  JEPS113728  Hydrocotyle umbellata Lowell Ahart 2007-7-11 14285 Butte About 100 yards west of the high gravel road (at turn, before washout), about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville 35 Comment
  CAS-BOT-BC400828  Hypericum anagalloides A. A. Heller 1916-9-8 12652 Butte Ten mile house east of Chico Comment
  CDA13229  Hypericum concinnum G. F. Hrusa, T. D. Wilfred 1996-7-8 13076 Butte Plumas National Forest; Old gun range along Old Railroad Grade Rd. immed. above Paradise Lake dam, approx. 3 m. N of Magalia. Comment
  UC129113  Hypericum concinnum Miss Kate Conger 1907-1 Butte Brush Creek Comment
  LA212279  Hypericum concinnum James R. Shevock; 1972-5-19 s.n. Butte Near Lake Oroville, along Highway #70. 91 Comment
  CHSC11965  Hypericum formosum var. scouleri E. B. Copeland 1930-7-18 Butte Jonesville. 1550 Comment
  SEINET10472163  Hypericum formosum var. scouleri Mary Susan Taylor 1977-7-15 Taylor 1403 Butte Butte Meadows, ca. 20 mi NE of Chico off Hwy 32. 1326 Comment
  CHSC51264  Hypericum mutilum Lowell Ahart 1990-10-3 6627 Butte On the bottom of the East Fork of Canyon Creek, below the high water line of Lake Oroville, about 1/4 mile north-east of the Canyon Creek Bridge across Lake Oroville. 259 Comment
Read comments
Mar 31 2009
  CHSC20491  Hypericum perforatum M. S. Taylor 1975-6-25 792 Butte Abundant along Mud Creek, ca. 1/2 mi n of Richardson Springs Hotel, ca. 6 mi ne of Chico. 121 Comment
  CHSC38470  Hypericum perforatum Vernon Oswald 1983-5-31 588 Butte Upper Bidwell Park, Chico, on the bank of a dry oxbow ca. 200 ft w of Day Camp. 91 Comment
  CHSC94032  Hypericum perforatum R. D. Fischer 2005-6-6 737 Butte Sierra Nevada foothills, off Hwy. 32, on 10 Mile House Road in Bidwell Park about 4 miles east of Chico. Plants found growing near trailhead adjacent highway. 457 Comment
  CHSC8122  Hypochaeris glabra K. Henegar 1969-4-17 92 Butte Pentz Road, 1/4 m from junction with 99 E. Comment
  CHSC29031  Iris macrosiphon J. D. Jokerst 1980-3-28 526 Butte E of the northern most portion of North Table Mt. 365 Comment
  CHSC3991  Iris macrosiphon A. K. Revard 1967-4-16 22 Butte S. of dirt roadside ca. 0.3 mi up from Cohasset Hwy., and ca. 3.3 mi n on Cohasset Hwy. from the Richardson Springs Rd. Comment
  RSA135853  Iris macrosiphon Lee W. Lenz, E. K. Balls 1955-5-13 20694 Butte Ca. 1 mile from Pentz (west) on road to Highway 40 alt. 305 Comment
  SEINET8752804  Iris macrosiphon M. J. Williams 1967-4-15 s.n. Butte Near Magalia Comment
  CDA19115  Isatis tinctoria Harrie D. Riley, Ernie Simpson 2001-4-27 PDR 1170765 Butte Sacramento Valley; Vicinity of Chico. Approx 1/5 mi on E side of Mud Creek and N side of Hwy 32 0 Comment
  JEPS127197  Isoetes howellii Lowell Ahart 2016-5-30 20881 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 1/8 miles east of Honcut, about 12 miles (air) southeast of Oroville. Comment
  CHSC116645  Isoetes nuttallii Lowell Ahart 2016-4-15 f 20743 Butte On the west side of Swedes Flat Road, about 1/2 mile southwest of Dutch Ravine, about 8 miles (air) southeast of Oroville. 384 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
  CAS-BOT-BC61869  Isoetes nuttallii M. S. Taylor; J. D. Jokerst 1980-3-28 2397 Butte in Valley Grassland, just e of Chico, ne corner of jct of Notre Dam Blvd and the Skyway, ca. 1/8 mi e of Hwy 99 68 Comment
  SEINET3441891  Isolepis cernua Unknown 2000-5-10 8334 Butte Oroville, Oroville, about 12 air miles southeast, about 1.75 miles north and 1.25 miles east of Honcut, Peter Ahart Ranch, about 100 yards south of a deep wash, just east of a dirt road 30 Comment
  JEPS98518  Isolepis setacea Lowell Ahart 2000-7-11 8563 Butte Seep on basalt, about 100 yards south of the dirt road, about 200 yards southeast of Lumpkin Ridge Road, about 1 1/2 miles east of Camp 18, about 6 1/2 miles (air) northeast of Feather Falls. 1280 Comment
  JEPS114387  Jensia rammii Lowell Ahart 2008-6-13 14823 Butte Bottom of an old gold mined area, about 350 yards southwest of the cemetery, about 50 yards north of Oregon Gulch, about 10 miles (air) northeast of Oroville 305 Comment
  HSC23348  Juglans hindsii S. K. Ray 1971-4-27 19 Butte N side of Gridley-Colusa Hwy., 0.5 mi. W of Randolph Ave. Jct., 0.5 mi. W of Gridley Comment
  CDA39581  Juglans hindsii J. T. Howell 1959-9-2 34703 Butte Feather River Highway 2 miles below West Branch Bridge. Comment
  CAS-BOT-BC109892  Juncus Lowell Ahart 1981-7-24 2999 Butte Sierra Nevada. About 0.5 mile southwest of the intersection of Black Bart Road and Forbestown Road, west of Forbestown. 700 Comment
  JEPS98527  Juncus articulatus Lowell Ahart 2000-7-11 8567 Butte sides of dirt rd, 100 yds N of Lumpkin Ridge Rd, upper W branch of Know-nothing Creek, 1 mi SW of int of Lumpkin Ridge Rd, rd to Fall River, and the County Rd, 4 air mi NE of Feather Falls 1219 Comment
  JEPS98459  Juncus brachyphyllus Lowell Ahart 2000-6-6 8459 Butte 5 air miles E of Oroville Dam (old gold mining pit, 200 yds NW of where the dirt road crosses Oregon Gulch creek, about 1/4 mi NE of the cemetery, 1 1/2 mi S of Crystal Hill) 304 Comment
  CHSC42378  Juncus bufonius var. bufonius Lowell Ahart 1987-5-6 5545 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC61517  Juncus bufonius var. bufonius Lowell Ahart 1993-6-20 6992 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  JEPS110161  Juncus bufonius var. bufonius Lowell Ahart 2006-9-11 13300 Butte South edge of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville 431 Comment
  JEPS110163  Juncus bufonius var. bufonius Lowell Ahart 2006-10-8 13424 Butte Near a large gravel bar, east side of the North Fork of the Feather River, just east of where the river flows into a pool, on the west side of Highway 70, about 1/2 mile north of the Cresta Power House 609 Comment
  RSA715584  Juncus bufonius var. bufonius L. Ahart 2005-4-14 11719 Butte About 200 feet east of the railroad tracks, north of Spruce Street, Gridley. 28 Comment
  JEPS107948  Juncus bufonius var. congestus Lowell Ahart 2005-4-18 11737 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
  JEPS94875  Juncus bufonius var. congestus Lowell Ahart 1998-5-2 7957 Butte about 5 air mi sw of Gridley (n side of Evans Reimer Road, about 1/4 mi e of Pennington Road); Evans Reimer Road 21 Comment
Read comments
1
  CHSC30508  Juncus capitatus N. E. H. Prouty 1980-4-25 145 Butte Off of Serene Lane. 82 Comment
  SBBG119954  Juncus capitatus L. Ahart 2004-4-4 10718 Butte ca. 5 yards E of Wilber Rd, N of the high hill crossed by Wilber Rd, S of the wash, ca. 3 air mi W of Thermalito 48 Comment
  CHSC61349  Juncus covillei var. covillei Lowell Ahart 1993-7-23 7112 Butte On the south side of the dirt road, about 200 yards south-west of the bridge across Fall River, about 6 (air) miles northeast of Feather Falls. 1036 Comment
  CHSC61351  Juncus covillei var. covillei Lowell Ahart 1993-7-23 7101 Butte On the west side of Fall River, about 100 yards west of the bridge across Fall River, about 6 (air) miles northeast of Feather Falls. 1036 Comment
  CHSC78400  Juncus diffusissimus Lowell Ahart 2000-7-18 8596 Butte On the margins of a small pond, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. 42 Comment
  CHSC44443  Juncus dubius Lowell Ahart 1988-6-23 6072 Butte In the meadow, south of the intersection of Black bart Road and Forbestown Road, about 1 mile west of Robinson Mill Road. 670 Comment
  JEPS118054  Juncus dubius Lowell Ahart 2011-8-23 17648 Butte In the large meadow, Pinkard Creek flows through the meadow east of the corral, about 1 miles north of Lost Creek Reservoir Dam, about 4 miles (air) northeast of Clipper Mills 1133 Comment
  CHSC65472  Juncus effusus subsp. pacificus Vernon Oswald 1988-5-25 3342 Butte Harter's Cherokee Ranch located on the w side of Hwy 99 between Hwy 149 and Dry Creek. In a ditch along Hwy 99 just n of the entrance to the ranch. 57 Comment
  CHSC84202  Juncus effusus subsp. pacificus Lowell Ahart 2003-6-30 10335 Butte In the gutter on the north side of Fields Ridge Road, north of the Ponderosa Reservoir, about 3 miles (air) north of Forbestown. 491 Comment
  RSA726659  Juncus effusus subsp. pacificus L. Ahart, L. P. Janeway, Linnea Hanson 2007-7-13 14300 Butte About 30 yards east of a poor dirt road, about 1 1/2 milea (air) northeast of Clipper Mills. 1046 Comment
  JEPS115973  Juncus effusus var. pacificus Lowell Ahart 2009-6-30 15980 Butte About 55 yards southeast of the gate, about 45 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
  JEPS106096  Juncus ensifolius Lowell Ahart 2004-8-2 11328 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
  POM219442  Juncus ensifolius H. F. Copeland 1928-8-18 414 Butte Neighborhood of Jonesville. 1524 Comment
  CHSC28654  Juncus exiguus J. D. Jokerst; M. S. Taylor 1979-10-13 392 Butte Adjacent to creek. Intersecton of Jordan Hill Rd. (Ponderosa Way) and Griffth Gulch. 701 Comment
  SEINET10472445  Juncus howellii Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4749 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
  UCD169927  Juncus laccatus Lowell Ahart 2011-8-19 17641 Butte About 1/2 mile north of the Lost Creek Reservoir Dam, about 4 1/2 miles (air) north of Clipper Mills. Along the wet road gutter, on the south side of a good forest road. 1266 Comment
  CAS-BOT-BC110102  Juncus leiospermus var. ahartii Lowell Ahart 1978-3-26 1620 Butte Peter Ahart Ranch, Honcut. 50 Comment
  HSC100809  Juncus leiospermus var. leiospermus Lowell Ahart 2010-5-22 16726 Butte ~100 yd. E of Cherokee Rd., ~200 yd. NE of parking area, North Table Mountain, 4.5 (air) mi. NE of Oroville. 386 Comment
  SBBG55177  Juncus leiospermus var. leiospermus B. Ertter, J. L. Strachan 1980-5-7 3309 Butte North Table Mtn, ca. 5 air mi N of Oroville 396 Comment
  CHSC113943  Juncus nevadensis var. nevadensis Lowell Ahart 2014-8-13 19709 Butte Near a small 'pond,' in the southwest part of a large wet meadow, about 110 yards southeast of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC113462  Juncus occidentalis Lowell Ahart 2014-7-7 19594 Butte Depression in a large disturbed area on the south side of Philbook Road, about 1 mile (air) west of Philbrook Reservoir. 1664 Comment
  UC398898  Juncus orthophyllus E. B. Copeland 1929-7-16 347 Butte Jonesville 1550 Comment
  CHSC96963  Juncus triformis Lowell Ahart 2007-6-12 14070 Butte Along swales, in a large bare granite opening (about an acre in size), northeast of Little Bald Rock, about 300 yards east of Bean Creek Road, about 16 miles (air) northeast of Oroville. 1009 Comment
  CHSC78337  Juncus trilocularis Lowell Ahart 2000-6-27 8512 Butte Big Bald Rock, about 3 miles (air) east of Madrone Lake, about 12 miles (air) northeast of Oroville. 993 Comment
  UCR261234  Juncus trilocularis Peter F. Zika 2011-7-6 25540 Butte Northern Sierra Nevada Range, highlands, above Oroville-Quincy Hwy, 0.8 road mi south of Stevens Ridge Road, 2.5 air mi northeast of Wild Yankee Hill 830 Comment
  CHSC38925  Juncus uncialis Vernon Oswald 1983-5-15 499 Butte Upper Bidwell Park, Chico, at the s-w corner of the Omicron Enclosure (500 ft e of the junction of Upper Park Rd. and Wildwood Ave. In vernal pond. 85 Comment
  CHSC97203  Juncus usitatus Lowell Ahart 2007-7-27 14397 Butte On the south strand of Thermalito Afterbay, about 200 yards north of Highway 162, about 5 miles west of the intersection of Highway 162 and Highway 70, about 5 1/2 miles (air) west of Oroville. 36 Comment
  RSA726656  Juncus usitatus L. Ahart 2007-7-5 14249 Butte 25 yards west of French Avenue, on the north side of Evans Reimer Road, about 2 miles (air southwest of Gridley. 25 Comment
  LA28295  Keckiella breviflora A. A. Heller; Howard S. Brown 1902-5-6 5471 Butte Berry Canyon (near Clear Creek) Comment
  CHSC44722  Keckiella breviflora var. glabrisepala R. Banchero 1980-6-17 251 Butte Along Coutolenc Rd 1.2 mi N of its lower jct with the Skyway, 1.1 mi S of the Paradise Lake turnoff. 646 Comment
  RSA0111938  Keckiella breviflora var. glabrisepala Lowell A. Ahart 2015-5-5 20143 Butte On the south side of the gravel road, Oroville Wildlife Area, about one mile south of the Headquarters, about one mile south of Thermalito. 40 Comment
  POM161683  Kelloggia galioides E. B. Copeland 1929-7-16 s.n. Butte Jonesville. 1550 Comment
  CDA31990  Kickxia elatine L. 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. Comment
  JEPS95757  Kickxia elatine Lowell Ahart 1995-8-19 7611 Butte 12 mi S of Oroville (Peter Ahart Ranch; E side of North Honcut Creek; 1 mi N and 2 3/4 mi E of Honcut) 36 Comment
  CHSC113443  Kyhosia bolanderi Lowell Ahart 2014-7-13 19647 Butte Southwest edge of a large wet meadow (some bog), about 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  OBI4692  Kyllinga brevifolia T. C. Fuller 1962-12-7 9952 Butte 282 Chico Rd, Oroville Comment
  CHSC110043  Lactuca saligna Lowell Ahart 2012-10-28 18518 Butte South of the paved park road, about 30 yards east of the restrooms and bridge, west part of Cedar Grove, Lower Bidwell Park, Chico. 70 Comment
  CHSC84400  Lactuca saligna Lowell Ahart 2003-8-6 10476 Butte In the road gutter on the east side of Encina Grande Road, just south of a small branch of Canyon Creek, about 1 mile west of Oroville Quincy Highway, about 2 1/2 miles (air) southwest of Berry Creek. 632 Comment
  SEINET10839260  Lactuca saligna Lowell Ahart 1983-9-19 Ahart 4459 Butte T17N R1E section 14. Ca. 1/8 mi s of the Graylodge Wildlife Refuge headquarters, ca. 12 mi sw of Gridley. Valley Grassland; 35 m. 35 Comment
  SEINET10872059  Lactuca scariola var. integrata Mary Susan Taylor 1981-2-11 Taylor 3377 Butte T19N R6E sw sec 8. Big Bend quad. E side of Lumpkin Rd, along Macabes Creek, 2 mi n of jct of Lumpkin Rd & Oroville-Quincy Hwy (162), ca. 13 mi ne of Oroville. Riparian Wdlnd; 1500 ft. 457 Comment
  CHSC111604  Lactuca serriola Lowell Ahart 2012-8-10 18417 Butte The north side of the parking area, Bidwell Mansion, Chico. Uncommon. Urban. 60 Comment
  CAS-BOT-BC340529  Lactuca serriola Lowell Ahart 1983-9-19 4458 Butte About 1/8 mile south of the Gray Lodge Waterfowl Management Area Headquarters, about 12 miles south-west of Gridley 35 Comment
  UC217501  Lagophylla glandulosa H. M. Hall 1917-5-13 10299 Butte Butte Creek Comment
  CAS-BOT-BC341304  Lagophylla glandulosa David D. Keck 1933-5-31 2409 Butte Bridge crossing Mud Creek, 2.9 miles west of Richardson Springs Comment
  CHSC45315  Landoltia punctata Lowell Ahart 1988-10-16 6187 Butte Dredge pond located ca. 300 ft ne of intersection of Pacific Heights Rd. and Hwy 70, ca. 1 mi s of Oroville. 45 Comment
  CHSC113441  Lapsana communis Lowell Ahart 2014-7-7 19564 Butte About 5 yards east of the Skyway, about one-mile north of Stirling City. 1142 Comment
  CHSC31115  Lasthenia californica Roberta A. Boer 1980-4-13 9 Butte Ca. 1/4 mi w of Foothill Blvd. and 2.7 mi se of jct of Olive Hwy and Foothill Blvd., ca. 3.5 mi se of Oroville. 121 Comment
  SJSU11864  Lasthenia californica subsp. californica J. B. Willis Jr. 1969-5-3 96 Butte by Cherokee Rd 8 mi NE of Oroville Comment
  CHSC20057  Lasthenia fremontii M. S. Taylor 1975-4-18 485 Butte Around vernal pool, ca. 1/2 mi e of Hwy 99 on Keefer Rd, ca. 1/2 mi ne of Keefer-Lassen Rd, ca. 5 mi n of Chico. Comment
  CHSC33352  Lasthenia fremontii R. M. Winchell 1980-4-23 4 Butte N of Chico. Between Singer Creek and Cana-Pina Road. Comment
  CHSC45688  Lasthenia glaberrima Vernon Oswald 1986-4-28 1985 Butte Hamilton-Nord-Cana Hwy 0.5 mi n of Bennett Rd. 48 Comment
  CHSC2426  Lasthenia gracilis R. Carter 1965-3-13 162 Butte On North Table Mt., these found 40 yds. E of point where Old Cherokee Rd. comes over rim of table, on top of table ca. 15 yds from rim. 304 Comment
Read comments
Jan 19 2011
  JEPS117244  Lathyrus angulatus L. Ahart 2010-5-5 16607 Butte Parking area east of McCabe Creek, a few feet below the high water line of Lake Oroville, about 11 air miles northeast of Oroville 264 Comment
  CHSC74087  Lathyrus brownii L. Gehrung; E. Hubert 1996-7-17 Butte Ca 2 air mi NNW of town of Brush Creek, on Mosquito Ridge, on N side of USFS Rd 22N96X. In large clearcut area on SW side of tributary to Ram Creek. 792 Comment
  RSA406664  Lathyrus jepsonii subsp. californicus M. M. Boney 1897-1 1724 Butte [No location data on label] Comment
  CHSC116512  Lathyrus jepsonii var. californicus B. Castro; Josh Brown, Melinda Carlson 2008-4-25 1732 Butte Sacramento Valley. E bank of Sacramento River, ca 0.2 mi N (upstream) of Gianelli Bridge at Hamilton City, just up from water's edge. 39 Comment
  CHSC104779  Lathyrus nevadensis var. nevadensis L. P. Janeway 2010-6-19 10018 Butte Northern High Sierra Nevada. About 1.2 km south of Bald Rock Dome near a saddle along the ridge between Middle Fork Feather River and Bean Creek drainage; along Bean Creek Road at spur road to Dome Trail trailhead. 858 Comment
  SEINET956196  Lathyrus sulphureus Lowell Ahart 1987-1 5621 Butte South of the Forbestown Ditch, about 2.5 miles north-east of Forbestown. 869 Comment
  RSA303518  Lathyrus tingitanus James R. Shevock 1972-5-19 1760 Butte South of Oroville, Hwy 70. 52 Comment
  SEINET10452347  Lathyrus tingitanus Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4127 Butte T20N R8E ne sec 9. Along Ponderosa Way (Big Ridge Rd), ca. 2 mi se of the jct with Oroville-Quincy Hwy, ca. 15 mi ne of Oroville. Foothill Woodland; 500 m. 500 Comment
  CAS-BOT-BC321758  Layia fremontii Richard R. Halse 2002-3-27 6151 Butte At the junction of State Hwy 99 and Hamilton Nord Cana Hwy, ca 8 miles NW of Chico. 40 Comment
  HSC32399  Layia fremontii Gary S. Lester 1974-4-20 105 Butte Along Pentz Rd. 300 yds. S of intersection with Clark Rd. 76 Comment
  CAS-BOT-BC380894  Layia platyglossa A. A. Heller 1914-4-29 11331 Butte Chico [however note comments in record; possibly near Vina in Tehama Co.] Comment
  CHSC66153  Leontodon saxatilis subsp. longirostris Vernon H. Oswald 1996-5-9 7544 Butte Sacramento Valley. Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife parcel between 7 Mile Lane and the Sacramento River. In the S paddock of Tract 7, Sanctuary II. 32 Comment
  JEPS119756  Leontodon saxatilis subsp. longirostris Lowell Ahart 2012-5-14 18054 Butte North edge of the path to Table 12, south of Big Chico Creek, north of the paved road, Lower Bidwell Park, Chico. Comment
  JEPS127008  Leontodon saxatilis subsp. longirostris Lowell Ahart 2016-5-24 20855 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
  CDA7529  Leontodon taraxacoides subsp. taraxacoides L. Heinricks 1968-8-15 Butte 4675 Bagget-Marysville Road, Oroville. 0 Comment
  UCSC010731  Lepechinia calycina Brett Hall, Annee Hall 1991-1 BH 115 .91 Butte Between Chico and Forest Ranch Comment
  CHSC35633  Lepidium dictyotum R. E. Preston 1982-4-4 216 Butte Dirt road on dike, Gray Lodge State Wildlife Area, ca. 0.3 mi w of Headquarters. 20 Comment
  JEPS95462  Lepidium latifolium Lowell Ahart 1994-9-26 7548 Butte 12 mi S of Oroville (Peter Ahart Ranch, 1 1/2 mi N and 1 mi E of Honcut) 36 Comment
  CAS-BOT-BC89877  Lepidium nitidum A. A. Heller 1915-2-26 11764 Butte Near Hog Springs, 6 miles east of Chico. Comment
  CHSC40530  Lepidium perfoliatum Lowell Ahart 1985-4-1 4874 Butte Along Table Mountain Boulevard, near the Cambell Overflow, a little south of the intersection of Highway 70 and 149, about 7 miles north of Oroville. 100 Comment
  CHSC38057  Lepidium strictum R. E. Preston 1983-5-26 386 Butte At roadside; at PG and E rest stop near Arch Rock Tunnel, ca. 4 mi NE of Pulga. 475 Comment
  CHSC65685  Lepidium strictum Vernon H. Oswald 1996-3-22 7248 Butte Sacramento Valley. Sacramento River National Wildlife Refuge, Llano Seco Unit. Sanctuary 1, NE corner of Tract 7.2. Ranch and levee roads at this location. 33 Comment
  CHSC94004  Lepidium strictum R. Fischer 2005-4-10 676 Butte Collection from along Hwy. 32, ca. 4 miles north of Chico in Bidwell Park. On the road bed of the 10 Mile House Road at the trail head. 457 Comment
  UC600713  Lepidium virginicum H. F. Copeland 1930-7-18 1333 Butte Jonesville 1524 Comment
  UCD63613  Leptochloa dubia L. Ahart 2000-11-4 8714 Butte on the west side of Highway 70, about 100 yards north of Rich Gulch Road, about 1 mile north of the West Branch Bridge across Lake Oroville, about 5 miles (air) southeast of Paradise. 335 Comment
  CDA38812  Leptochloa fascicularis L. Ahart 2011-10-29 17731 Butte On the south side of Biggs Princeton Road, about 500 yards west of Riceton Highway, about 1 mile northwest of Biggs. Comment
  JEPS98448  Leptochloa fascicularis Lowell Ahart 2000-5-18 8372 Butte 4 1/2 air miles SW of Oroville (on bottom of the Clay Pit, about 1/8 mi W of Oroville Airport and Larkin Road) 36 Comment
  CHSC31721  Leptochloa fusca subsp. fascicularis L. Ahart 1974-7-20 554 Butte On margins of rice field. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC34196  Leptochloa fusca subsp. fascicularis J. D. Jokerst; L. Ahart 1981-9-26 1496 Butte Ca 100 m E of Sacramento River at the Bidwell River State Park (Chico Landing) ca 5.0 mi W of Chico. Comment
  CHSC113227  Leptosiphon bicolor Lowell Ahart 2014-5-2 19436 Butte Along the trail, north side of Beatson Hollow, about 1 1/2 miles southwest of the Improved Parking Area and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 305 Comment
  UCSB63627  Leptosiphon bicolor Curtis, Lisa 1982-4-17 Butte no data 88 Comment
  CHSC36716  Leptosiphon bolanderi R. Schlising; R. Banchero 1980-5-13 3587 Butte Serpentine outcrop above Hwy 70 and above Bardees Bar on N Fork of Feather River, ca 2 mi S of Pulga. 441 Comment
  CHSC2379  Leptosiphon ciliatus R. Carter 1965-4-12 179 Butte Found ca. 7.5 mi. E of Oroville at 6120 W.S.R., 30 yds. due E of garage growing along foot path. 274 Comment
  CHSC29379  Leptosiphon ciliatus R. A. Schlising; R. Banchero 1980-6-12 3686 Butte 4.6 mi s of Butte/Tehama County line on Hwy 32; roadside. Comment
  CHSC27960  Leptosiphon harknessii M. S. Taylor 1978-7-19 1772 Butte On e side of Upper Scotts John Rd, ca. 3 mi n of its jct with Scotts John Rd, ca. 7 mi ne of Jonesville. 1889 Comment
  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
  CHSC31181  Lessingia nana M. S. Taylor; R. Schlising 1980-7-5 3059 Butte On w side of Hwy 32, ca. 0.1 mi s of Loma, up on edge of forest. 1127 Comment
  CHSC38375  Lessingia nana Vernon Oswald 1983-8-2 948 Butte Upper Bidwell Park, Chico, near Parking Area C, Horseshoe Lake. 100 Comment
  CHSC50799  Lessingia nana Vernon Oswald; Mary Bailey 1990-8-2 4430 Butte North side of Neal Rd, 0.3 mi east of Hwy 99. Pasture bordering the intermittent stream draining Nance Canyon. 60 Comment
  CAS-BOT-BC341788  Lessingia nemaclada John Thomas Howell 1967-6-22 42606 Butte Magalia 701 Comment
  CAS-BOT-BC341794  Lessingia nemaclada R. F. Hoover 1938-8-2 3721 Butte Magalia Comment
  CHSC27731  Lessingia nemaclada Robert A. Schlising 1978-10-10 3343 Butte Highway 70, Feather River Canyon, just south of Arch Rock Tunnel at P.G. and E. Roadside Rest Area. Comment
  CHSC30275  Lessingia nemaclada M. S. Taylor 1979-7-22 2170 Butte Pulga bridge, on n side of trail leading from ne side of Pulga bridge over Hwy 70, ca. 27 mi n of Oroville. 487 Comment
  JEPS108726  Lessingia nemaclada Lowell Ahart 2006-9-28 13362 Butte At the end of the dirt road, about 50 yards west of the falls on Bear Ranch Creek, about 10 yards north of the tunnel and Bear Ranch Creek, about 1/8 mile east of Highway 70, about 1/4 mile southeast of the Shady Rest Area south of the Arch Rock Tunnel 480 Comment
  SEINET10839206  Lessingia nemaclada Mary Susan Taylor 1979-8-4 Taylor 2171 A 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
  RSA126788  Lessingia virgata J. E. Sowder 1933-6-15 85 Butte 1 mile west of Tres Vias 46 Comment
  CHSC50402  Leucanthemum maximum Vernon Oswald; Lowell Ahart 1990-6-27 4322 Butte West side of Galen Creek, ca. 0.5 mi northeast of Berry Creek and Madrone Lake. 609 Comment
  CAS-BOT-BC334597  Leucanthemum vulgare Lowell Ahart 1987-5-27 5692 Butte Along the North Fork of teh Feather River near the Poe Power House about 2 miles south-east of Jarbo Gap 271 Comment
  CHSC43879  Leucothoe davisiae L. P. Janeway 1987-6-26 2306 Butte Edge of man-made pond in Camp Cr next to crossing of road, 2.5 mi east of Granite Ridge along the road to Lynch and Logue Mdws. 1365 Comment
  RSA467654  Leucothoe davisiae Anstruther Davidson 1928-07 s.n. Butte Feather River Comment
Read comments
Feb 6 2012
  CHSC100835  Lewisia triphylla R. A. Schlising; R. Banchero 1981-5-20 4067 Butte E of village of Feather Falls on Lumpkin Ridge. 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
  CHSC37670  Ligusticum californicum M. S. Taylor 1982-8-16 4997 Butte At seep and creek crossing rd to Bald Mt, ca. 1/4 mi sw of Bald mt, ca. 3 mi ne of Stirling City. 1645 Comment
  CHSC33967  Ligusticum grayi M. S. Taylor; L. Ahart 1981-8-15 4191 A Butte S side of Coon Hollow Rd (26N74), 1.1 mi e of its jct with Humbug Rd, ca. 12 mi ne of Stirling City; 1676 Comment
  CHSC42588  Ligusticum grayi Vernon Oswald 1985-6-20 1849 Butte Scotts John Rd., 0.6 mi n of Rd. 26N27, ca. 2.25 air miles e of Jonesville. 1755 Comment
  CHSC42592  Ligusticum grayi Vernon Oswald 1985-8-4 1922 Butte Scotts John Rd. 0.9 mi n of the road connecting Humboldt and Humbug Rds. 1780 Comment
  CHSC2291  Lilium humboldtii V. Holt 1935-7-1 Butte De Sabla. ... Field redacted by CHSC, contact the data manager for more information 762 Comment
  CHSC43073  Lilium humboldtii R. A. Schlising; Diane Ikeda 1987-6-12 4512 Butte S of Cohasset, along Cohasset Rd. ... Field redacted by CHSC, contact the data manager for more information 457 Comment
  SEINET3992016  Lilium parvum var. luteum E. B. Copeland, Mrs. Austin 1930-7-18 614 Butte Jonesville 1500 Comment
  SEINET12183093  Limnanthes douglasii A. K. Bos 1978-1 4 Butte Along Skyway at intersection of Skyway and Bruce Rd., 3.5 mi ESE of Chico Comment
  CHSC104843  Limnanthes douglasii subsp. nivea Lowell Ahart 2010-6-9 16788 Butte Open field about 100 yards west of the fence, about 1/2 mile south of the improved parking area and Cherokee Road, North Table Mountain, about 5 1/2 miles (air) northeast of Oroville. 398 Comment
  JEPS104319  Limnanthes douglasii subsp. nivea Lowell Ahart 2003-4-10 10083 Butte Along a drainage, sw of the ''sunken area,'' on the top of South Table Mountain, ca 2 1/2 mi (air) n of Oroville. 310 Comment
  JEPS110435  Limnanthes douglasii subsp. nivea Lowell Ahart 2006-4-28 12542 Butte Along a small stream, south part of drainage into Beatson Hollow, west of the dirt road, about 1/4 mile northwest of the Iron Gate along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 320 Comment
  CHSC52409  Limnanthes douglasii subsp. rosea Rene T. Retuta 1978-4-18 18 Butte Ca 100 ft W of Broyles Rd, ca. 1500 ft W of hwy 99, 8.5 mi NW of Chico. 62 Comment
  SFV2130  Limnanthes douglasii subsp. rosea M. L. Vincent 1962-4-17 203 Butte Sierra Nevada Cherokee Road near Table Mountain. Comment
  JEPS18178  Limnanthes douglasii subsp. rosea Rimo Bacigalupi with G. T. Robbins and F. Chisaki 1956-4-19 5611 Butte near junction of road to Oregon City (along Oroville-Concow road) 388 Comment
  RSA31668  Limnanthes douglasii subsp. rosea A. A. Heller 1916-3-8 s.n. Butte 8 miles north of Oroville. Comment
  RSA435675  Limnanthes douglasii subsp. rosea C. T. Mason 1949-4-23 1257 Butte Highway 99 E, 7 mi. north of Chico. Comment
  SEINET6670565  Limnanthes douglasii subsp. rosea R. McKee 1909-1 s.n. Butte Chico Comment
  SDSU8107  Limnanthes douglasii var. rosea Scott McMillan 1992-4-11 Butte The pool was under an electrical tower north of Upper Park Rd., in Upper Bidwell Park, Chico, California. 78 Comment
  UC1748332  Limnanthes floccosa subsp. californica James D. Jokerst 1991-4-18 3241 Butte N of Hwy. 32 across from church 76 Comment
  CHSC112705  Limosella acaulis Lowell Ahart 2013-10-26 19218 Butte South side of Philbrook Creek, below the high water line (strand) of Philbrook Reservoir. 1681 Comment
  CHSC32586  Limosella acaulis L. Ahart 1980-5-11 2242 Butte On the w side of Pentz-Magalia Hwy, ca. 1/2 mi sw of Kunkle Reservoir, ca. 3 mi s of Paradise. 500 Comment
  JEPS123907  Limosella acaulis Lowell Ahart 2015-4-24 20068 Butte About 3/4 mile north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. Comment
  SEINET10546852  Linanthus Mary Susan Taylor 1981-5-21 Taylor 3777 Butte T22N R4E nw/nw sec l and ne/ne sec 2, Pulga SW quad. S side of Concow Rd, ca. 0.5 mi S of its jct with Ponderosa Way (Rim Rd), ca. 20 air mi N of Oroville. In reddish weathered serpentine; 2800 ft. 853 Comment
  SEINET12319547  Linanthus ciliatus Unknown 1970-1 57 Butte 2.3 mi on Upper Park Rd, Bidwell Park, Chico Comment
  CHSC2480  Linanthus dichotomus W. Fitzwater 1958-4-19 Butte Humboldt Rd., Chico area. On top of ridge. 457 Comment
  POM65888  Linanthus dichotomus subsp. meridianus E. B. Copeland 1903-4-11 3030 Butte Chico. Comment
Read comments
May 3 2021
  JEPS98369  Linanthus filipes Lowell Ahart 2000-6-27 8526 Butte 12 air miles NE of Oroville (N part of Big Bald Rock, 100 yds S and W of the N and E forest line, 3 air miles E of Madrone Lake) 963 Comment
  RSA713020  Linaria genistifolia subsp. dalmatica L. Ahart 2005-11-12 12484 Butte Flat area on the S side of Dark Canyon Creek, 50 yards S of the train tunnels, W of Dark canyon Road. 2.5 miles air S of Hwy 70 at Big Bend Road. 294 Comment
  HSC93349  Lindernia dubia L. Ahart 1995-7-15 7595 Butte Small wash, Peter Ahart Ranch, 1.5 mi. N and 0.75 mi. E of Honcut, 12 mi. S of Oroville 37 Comment
  UC1101442  Lindernia dubia var. dubia Malcolm A. Nobs and S. Galen Smith 1949-7-29 1082 Butte ca 5 mi w Richland Comment
  SD2733  Linum lewisii E. B. Copeland 1929-7-17 Butte Above Jonesville 2000 Comment
  SEINET12186146  Linum lewisii Unknown 1985-1 4993 Butte 1/8 mi E of the dirt rd, about 1.5 mi NE of Concow of Reservoir 732 Comment
  CHSC109570  Linum lewisii var. lewisii L. P. Janeway 2012-6-7 10867 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
  CHSC51024  Lipocarpha Lowell Ahart 1990-7-4 6547 Butte Along McCabe Creek, below the high water line of Lake Orovile, abou 1/2 mile south-west of the Enterprise Bridge across Lake Oroville. 243 Comment
  RSA0106687  Lipocarpha micrantha Lowell Ahart 2013-11-13 19239 Butte Below 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
  CAS-BOT-BC111975  Lipocarpha micrantha Lowell Ahart 1969-9-9 s.n. Butte Peter Ahart Ranch, Honcut. Along North Honcut Creek. 150 Comment
  SEINET9782028 Image available Lipocarpha occidentalis Richard Carter 2006-7-30 Butte N Chico, 0.3 mi N jct. Nord Hwy and Esplanade, between Esplanade and Hwy CA 99 Comment
  SEINET10483075  Lithophragma bolanderi Mary Susan Taylor 1980-4-16 Taylor 2497 Butte T21N R4E s sec 17 Cherokee quad. Lake Oroville State Recreation Area, up to 0.5 mi SE of Parish Camp, just S of Lime Saddle Memorial Park, ca. 5 mi S of Paradise; Foothill Woodland. 305 Comment
  CHSC29225  Lithophragma parviflorum var. trifoliatum M. S. Taylor; J. D. Jokerst, L. Ahart 1980-4-6 2435 Butte SE corner of jct of Rcky Honcut Creek and Swedes Flat Rd, ca. 2 mi e of Oroville-Banger Hwy, ca. 10 mi s of Oroville. 365 Comment
  CHSC92562  Lithophragma parviflorum var. trifoliatum L. P. Janeway 2005-3-10 8354 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  CAS-BOT-BC428443  Lithophragma trifoliatum Forest Sheehan 1970-4-7 s.n. Butte Table Mt. near Oroville Comment
  CHSC29287  Lithospermum californicum R. A. Schlising 1980-5-23 3597 Butte N of Lake Oroville State Rec. Area in Lassen Nat. Forest, 3.5 mi e junction Hwy 70 and Big Bend Road and from here, at community of Big Bend, 1.0 mi s; roadside. Comment
  RSA727542  Lithospermum californicum 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
  CAS-BOT-BC317345  Lithospermum californicum Lowell Ahart 1982-5-8 4090 Butte Along Bloomer Hill Road, about 1.25 miles W of the Oroville Quincy Highway, about 15 miles NE of Oroville. Section 31. 450 Comment
  CAS-BOT-BC269075  Lolium perenne John Thomas Howell; Gordon H. True 1967-6-11 42557 Butte On northwest side of Feather River Canyon near Pulga Bridge Comment
  CHSC3873  Lomatium Susan Carrauthers 1966-3-14 56 Butte Ca. 4 mi. N.W. of city of Chico on Highway 32. Next to Lindo Channel. Comment
  CHSC54522  Lonicera cauriana Vernon H. Oswald; Lowell Ahart 1991-8-11 4823 Butte Marshy meadow located on the southeast side of Humbug Rd, ca. 0.5 mile northeast of the northeast end of Snag Lake. 1767 Comment
  CDA18830  Lonicera hispidula Riley, Ranft 1999-6-28 PDR 1145797 Butte along N/S Forbestown Rd, 1.4 mi E of Black Bart Rd., Oroville. 0 Comment
  CHSC51218  Lonicera involucrata var. involucrata L. P. Janeway 1987-6-19 2245 Butte Strawberry Valley Cr at crossing of Barton Hill Rd 2.4 mi from Travis Saddle and the Challenge-LaPorte Rd. 1051 Comment
  JEPS120007  Lonicera japonica Lowell Ahart, Linnea Hanson, Kaline Le Coq, Josephine Guardino 2012-4-27 17914 Butte Near table 17, on the north side of Centennial Avenue, Lower Bidwell Park, Chico. Comment
  UC864769  Lotus argophyllus var. fremontii Lewis S. Rose 1940-5-30 40424 Butte 25 mi ne Oroville; Feather River Canyon 609 Comment
  SEINET957207  Lotus balsamiferus Lowell Ahart 1987-1 5804 Butte On dry bare distrubed soil, near Big Bar Mountian Road, about 1 mile south-west of Coyote Gap, about 5 miles east of Pulga. Comment
  CHSC65167  Lotus corniculatus Lowell Ahart 1995-8-19 7612 Butte East side of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 3/4 miles east of Honcut, about 12 miles south-east of Oroville. 36 Comment
  RSA126007  Lotus grandiflorus var. macranthus E. K. Balls 1957-5-22 22513 Butte N. fork Feather River, above Camp Rogers, on trail to Bucks Lake. 655 Comment
  SEINET10451972  Lotus humistratus Mary Susan Taylor 1978-5-6 Taylor 1571 Butte Just N of Magalia, in large serpentine area along the Skyway. 610 Comment
  SEINET10451976  Lotus humistratus Lowell Ahart 1985-5-15 Ahart 4972 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
  CDA27292  Lotus purshianus D. G. Kelch 2006-8-2 6 .345 Butte Along Butte Creek, north of Durham-Dayton Hwy. Comment
  UC1562315  Lotus stipularis Vernon Oswald and Lowell Ahart 1990-6-27 4334 Butte 0.5 mi n Coyote Gap (Four Trees Rd) 1341 Comment
  CHSC112877  Ludwigia decurrens Evan Padgett 2014-8-20 Butte Sacramento Valley. Agricultural fields between Richvale and Highway 162, west of Midway, next to rice fields. 26 Comment
  JEPS110472  Lunaria annua Lowell Ahart 2006-5-3 12554 Butte About 75 yards southeast of the Concow Grange building, on the west side of Big Bend Road, about 1 1/4 miles (air) south of Jarbo Gap 548 Comment
  CAS-BOT-BC198304  Lupinus Charles Piper Smith 1949-4-21 49122 Butte Magalia, 2.5 miles northeast, De Sable Road Comment
  NY16038  Lupinus A. A. Heller 1914-2-2 11166 Butte Cañon [o]f Big Chico creek 6 miles east of Chico Comment
  CHSC96862  Lupinus albicaulis Lowell Ahart 2007-6-3 13979 Butte On the east side of Highway 70, about 1/4 mile northeast of the Poe Dam on the North Fork of the Feather River. 486 Comment
  SEINET12161341  Lupinus albifrons T. E. Lewis 1978-1 5 Butte on Magalia Hwy, E side of rd ca 50 m S of Pent Rd jct, ca 11km S of Paradise 270 Comment
  CAS-BOT-BC201350  Lupinus albifrons var. albifrons L. S. Rose 1931-4-11 s.n. Butte In outskirts of Oroville Comment
  RSA712785  Lupinus albifrons var. albifrons L. P. Janeway, B. Castro 1994-4-21 4644 Butte Northern High Sierra Nevada. At end of south-trending spur ridge at western end of Watson Ridge about 2.0 mi east-northeast of Bald Rock Dome. 1052 Comment
  CHSC90018  Lupinus bicolor Rebecca L. Hill 1990-4-7 10 Butte Ca. .4 mi ese on Clear Creek Cemetery Rd., ca. 6 mi s of Paradise off of Clark Rd. 121 Comment
  SFV11554  Lupinus bicolor M. L. Vincent 1964-4-8 499 Butte Pentz Road, 0.25 miles west of Barnum Road. Comment
  RSA32827  Lupinus bicolor subsp. tridentatus A. A. Heller 1939-4-10 15376 Butte Lower part of the Cohasset road near the foot of the grade near Rock Creek. Comment
  CHSC35320  Lupinus bicolor var. pipersmithii M. S. Taylor; K. Tharp 1982-4-8 4291 Butte Along both sides of Oroville Dam Blvd, ca. 1.5 mi s of Oroville Dam Visitors Center, Oroville. 243 Comment
  SEINET10485237  Lupinus densiflorus var. lacteus Mary Susan Taylor 1981-5-1 Taylor 3589 A Butte T20n r3e ne1/4ne1/4 sec 22. Oroville quad. Nw corner of jct of hwy 70 with Hwy 149, at wicks corner, ca 4 mi. N of oroville. Assoc: trifolium hirtum. 91 Comment
  POM23941  Lupinus grayi C. C. Bruce 1898-05 2456 Butte Doe mill Comment
  CHSC91928  Lupinus latifolius var. columbianus L. P. Janeway 2005-7-16 8493 Butte Northern High Sierra Nevada. Along Road 24N13 at small side drainage west to Lockerman Creek, opposite confluence of Lockerman Creek at Camp Creek. 969 Comment
  CHSC50997  Lupinus lepidus var. confertus Lowell Ahart 1990-7-22 6576 Butte On the west side of Concow Road, Concow. 640 Comment
  CDA13344  Lupinus nanus G. F. Hrusa, T. D. Wilfred 1996-7-9 13192 Butte Sierra Nevada; along Hwy 162. Near entrance to Rogers Cow Camp. Comment
  CHSC90191  Lupinus nanus Eric M. Haney 1989-4-21 1 Butte Found in Bidwell Park, ca. 100 m e of Horseshoe Lake. Comment
  UCD108996  Lupinus nanus A. A. Heller 1915-5-25 11890 Butte on the Forbestown road 15 miles east of Oroville. 457 Comment
  CHSC23660  Lupinus nanus var. apricus M. S. Taylor 1976-3-30 1042 Butte Ca. 1/2 mi e of Cherokee Rd, ca. 2 mi ne of Oroville on Table Mountain. 373 Comment
  CHSC109127  Lupinus nanus var. latifolius Lowell Ahart 2012-3-23 17793 Butte Near large rocks, about 250 yards east of Big Chico Creek, about 150 yards west of Ten Mile House Road, below and north of the old homestead, about 3/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. 215 Comment
  CHSC3829  Lupinus nanus var. vallicola R. L. Adams 1964-4-12 72 Butte Junction Hwy. 32 and River Rd. on S. side 32. Comment
  CHSC38511  Lupinus nanus var. vallicola Vernon Oswald 1983-5-7 440 Butte Upper Bidwell Park, Chico, on the north rim 50 ft e of the turn-around at the end of the jeep trail. 426 Comment
  JEPS115828  Lupinus nanus var. vallicola Lowell Ahart 2009-4-26 15618 Butte In a small open meadow, about 150 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 286 Comment
  RSA718075  Lupinus polyphyllus var. burkei L. 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, above 5 miles (air) northeast of Butte Meadows. 1570 Comment
  POM196153  Lupinus sellulus var. artulus E. B. Copeland 1929-7-17 377 Butte Above Jonesville. 2000 Comment
  CDA27576  Lupinus stiversii L. L. Heinrichs 1963-5-21 Butte Olive Highway, 5 miles from Oroville. 0 Comment
  SEINET10452665  Lupinus stiversii Mary Susan Taylor 1981-5-6 Taylor 3627 A Butte T20N R6E ne sec 33. Forbestown quad. N side of Ponderosa Way, 0.2 mi N of small bridge over Sucker Creek, ca. 3 air mi E of Enterprise Bridge, ca. 4 air mi SW of Feather Falls community. Yellow Pine Forest; 1100 ft. 335 Comment
  CHSC33674  Lupinus succulentus L. Ahart 1981-5-16 2806 Butte In Graylodge Waterfowl Mgmt Area, 11 mi sw of Gridley. 35 Comment
  CHSC116230  Luzula cascadensis Lowell Ahart 2015-6-16 20240 Butte On the west side of the paved road, 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. 1406 Comment
  UC1594729  Luzula comosa var. laxa Lowell Ahart 1992-8-26 6845 Butte About 1/2 mile north of the Carr Mine about 2 (air) miles south of Snow Mountain 1767 Comment
  JEPS113268  Luzula comosa var. subsessilis Lowell Ahart 2007-4-30 13705 Butte On the west side of Jordan Hill Road, about 1 1/2 miles northwest of Concow Creek, about 1 1/2 miles west of Concow Reservoir 358 Comment
  CHSC61521  Luzula parviflora Lowell Ahart 1993-6-26 7011 Butte Along a seep in a small meadow, north of the dirt road, about 1/4 mile west of the Lost Creek Reservoir. 1036 Comment
  CHSC95231  Luzula parviflora L. P. Janeway 2006-8-6 8830 Butte Northern High Sierra Nevada. Near road along west side of lower Pinkard Creek, 1.2 mi north of Lost Creek Reservoir dam. 1021 Comment
  CHSC51367  Lycopus americanus Vernon Oswald 1990-8-14 4435 Butte Kunkle Reservoir on the east side of Pentz-Magalia Hwy south of Paradise. Along the edge of the reservoir on the north side of the dam. 441 Comment
  SEINET10498035  Lycopus americanus Mary Susan Taylor 1977-10-10 Taylor 1520 Butte Ca. 4-5 mi S of junction of Chico-Butte Hwy and Ord Ferry Road, ca. 20 mi S of Chico, on both sides of Chico-Butte Hwy; dried up Freshwater Marsh, and slough area. 30 Comment
  UCD124961  Lycopus asper E. M. Johnston 1915-1 W 136 J Butte Biggs. Comment
  SEINET13711409  Lythrum hyssopifolia Lowell William Ahart, Lowell William Ahart 1999-1 8169 Butte 12 Air Mi SW of Chico, 2 Mi SE of Ordbend, Sacramento River Comment
  UC204408  Lythrum hyssopifolia A. A. Heller 1914-7-31 11631 Butte about 6 mi nw of Chico (Sacramento Valley); Sacramento Valley Comment
  CDA5138  Lythrum hyssopifolia T. C. Fuller 1962-5-17 8716 Butte Highway 99E, 12.3 miles northwest of Chico. 0 Comment
  NY366307  Lythrum salicaria L. Ahart 1984-8-19 4782 Butte North of the state burrow area, west of Pacific Heights Road, about 5 miles southwest of Oroville 40 Comment
  RSA4140  Madia bolanderi E. B. Copeland 1930-8-4 S.N. Butte Jonesville 1500 Comment
  CAS-BOT-BC342712  Madia elegans Lowell Ahart 1983-6-26 4116 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 500 Comment
  SEINET10474299  Madia elegans Mary Susan Taylor 1977-11-12 Taylor 1541 Butte Up to 1/4 mi beyond end of Upper Bidwell Park Road, just out of Upper Bidwell Park, Chico. Foothill Woodland. Comment
  CHSC46954  Madia elegans subsp. densifolia Lowell Ahart 1977-9-20 1581 Butte Along North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC45692  Madia exigua Vernon Oswald 1987-4-14 2321 Butte Hwy 32 between Chico and Forest Ranch at the 17.0 mile marker. 390 Comment
  CAS-BOT-BC344310  Madia exigua A. A. Heller 1928-5-27 14561 Butte Along the Neal road, Paradise Comment
  CAS-BOT-BC342964  Madia gracilis Lowell Ahart 1981-8-15 3037 Butte Snag Lake (about 3 miles south of Jonesville) 1524 Comment
  CHSC86135  Madia gracilis John Dittes; Josephine Guardino 2002-6-21 618 Butte Northern High Sierra Nevada Range; Watson Ridge; ca. 1.2 air-miles east of Middle Fork Feather River, ca. 1.7 air-mile north by northwest of Feather Falls Overlook, ca. 5.4 air-miles west by southwest of Cascade. 1133 Comment
  JEPS108733  Madia gracilis Lowell Ahart 2006-6-9 12649 Butte On the east side of Bardees Bar Road, south of the small stream, about 1/4 mile southwest of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga 403 Comment
  CAS-BOT-BC342958  Madia gracilis A. A. Heller No date on label 12816 Butte Butte Meadows 1402 Comment
  CAS-BOT-BC345240  Madia subspicata David D. Keck 1933-5-30 2404 Butte 3 miles southwest of Richardson Springs, on bluff at south side of Mud Creek Comment
  CAS-BOT-BC510730  Maianthemum racemosum subsp. amplexicaule H. F. Copeland 1916-11-29 1236 Butte Woods near Butte Creek. Comment
  UC1609223  Malacothrix floccifera Lowell Ahart 1993-6-26 7028 Butte about 1 mi w Lost Creek Reservoir (w side of the dirt road); Mooreville Ridge 1188 Comment
  CHSC43735  Malus Vernon Oswald 1987-3-30 2300 Butte Butte Creek Reserve between Butte Creek and the Durham Mutual Ditch ne of Hwy 99. 70 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
  CHSC46834  Malva parviflora R. A. Schlising 1986-11-28 4510 Butte Gray Lodge Waterfowl Management Area. 18 Comment
  JEPS87782  Malva parviflora Lowell Ahart 1994-3-30 7277 Butte about 7 mi n Oroville (garden area at ne corner of Oregon City School, Oregon City); Oregon City 365 Comment
  CHSC20126  Marah fabacea var. agrestis M. S. Taylor 1975-5-6 552 Butte On s side of Big Chico Creed, ca. 60 ft e of Little Cafeteria, California State University, Chico. Comment
  CHSC26877  Marah watsonii Robert A. Schlising 1963-5-4 2557 Butte 0.7 miles southwest of junction with Skyway Road, along Honeyrun Road (in city of Paradise). Comment
  RSA0028781  Marah watsonii K. M. Stocking 28 Butte 0.9 mile down from Paradise on short cut to Chico. [W of Paradise] 457 Comment
  CHSC58671  Marsilea vestita M. Bailey 1991-7-27 Butte Lake Concow Reservoir. 762 Comment
  SEINET10530353  Marsilea vestita Mary Susan Taylor 1978-9-8 Taylor 1879 Butte Along flood control slough, ca. 4 mi N of Chico, along Hwy 99. 61 Comment
  CHSC3406  Matricaria discoidea Alice L. Stoll 1966-4-17 127 Butte At 630 Esplanade, Chico. Comment
  CHSC25479  Matricaria occidentalis L. Ahart 1977-4-25 1320 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC1206  Meconella californica S. Carter 1929-3-25 Butte Richardson Springs road. Comment
  SEINET12091631  Meconella californica Unknown 1984-1 23 Butte Ca 10 yds S of Butte Creek and 300 yds W of Covered Bridge, 6.5 mi ESE of Chico 122 Comment
  UCD106765  Medicago arabica P. B. Kennedy 1914-5-8 s.n. Butte Chico. Comment
  CHSC20470  Medicago lupulina M. S. Taylor 1975-6-25 797 Butte Ca. 100 yds w of Mud Creek, ca. 1 mi n of Richrdson Springs Hotel, ca. 6 mi ne of Chico. 121 Comment
  CHSC75971  Medicago polymorpha Lowell Ahart; Vernon Oswald 1999-8-13 8162 Butte Along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  SEINET12155149  Medicago sativa P. L. Ricker 1912-1 3920 Butte Chico Comment
  CHSC116524  Melia azedarach B. Castro 2013-4-25 1993 Butte Sacramento Valley. Just N of Chico, on W edge of Hwy 99 ca 150 ft N of its jcn with Wilson Landing Rd. 54 Comment
  CAS-BOT-BC269377  Melica californica Lowell Ahart 1983-6-26 4108 Butte Along Ponderosa Way, ca. 1/8 mi. E of the intersection of the Oroville Quincy Highway and Ponderosa Way, ca. 15 mi. NE of Oroville 500 Comment
  CHSC31704  Melica californica L. Ahart 1978-5-16 1732 Butte Along the edges of North Honcut Creek. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC44575  Melica californica Lowell Ahart 1979-5-29 1893 Butte West of Kunkle Creek, about 2 1/2 miles south-east of Paradise. 457 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
  JEPS48096  Melica californica Paul C. Hutchison with J. K. Wright and R. Bacigalupi 1963-6-1 2691 Butte w side Pulga Bridge; North Fork of Feather River 487 Comment
  UCR21798  Melica californica Paul Reisentz 1979-5-13 s.n. Butte 4 mi south of Cresta Power House on Hwy 70, 5 mi north of Jarbo Gap Gas Station on the Feather River. Comment
  SEINET10599356  Melica californica Lawrence P. Janeway 1995-6-19 Janeway 4797 Butte Cascade quad. T21N R6E S25 SE1/4 NW1/4. About 0.5 mi east of the western end of Jackson Ranch Ridge. Open areas in open ponderosa pine dominated mixed conifer forest. 1097 Comment
  CDA32494  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. Comment
  CHSC42928  Melica harfordii Lowell Ahart 1987-7-8 5798 Butte Along Big Bar Mountain Road, about 3 miles south-west of Coyote Gap, south-east of Pulga. 1280 Comment
  SEINET10508161  Melica harfordii Lowell Ahart, Peter Ahart 1983-7-24 Ahart 4216 Butte T20N R7E ne sec 32. At the Forbestown Reservoir, ca. 5 mi ne of Forbestown. Yellow Pine Forest; 450 m. 450 Comment
  LA12166  Melica subulata E. B. Copeland; 1929-7-16 338 Butte Jonesville 1550.0 Comment
  CAS-BOT-BC262497  Melica torreyana Lowell Ahart 1989-5-10 6221 Butte Near Lake Oroville, about 1/10 mile north-west of the West Branch Bridge across Lake Oroville 289 Comment
  UC4586585  Melica torreyana Vernon H. Oswald and Lowell Ahart 1991-5-13 4584 Butte between Canyon Drive and Oroville Dam Blvd East (opposite spillway) Dan Beebe Trail; Lake Oroville Recreation Area Comment
  CHSC5965  Melilotus albus M. MacArthur 1968-6-17 150 Butte SE side Big Chico Creek just below Headhouse, Chico State College campus. 60 Comment
  JEPS119719  Melilotus albus Lowell Ahart 2012-6-28 18243 Butte On the north side of Big Chico Creek, east of Sycamore Pool, Lower Bidwell Park, Chico. Comment
  JEPS98987  Melilotus officinalis Lowell Ahart 2001-6-1 8747 Butte On the south side of Biggs-Princeton Road, about 1/2 mile east of Butte Creek, about 8 miles west of Biggs. 21 Comment
  CHSC83001  Melissa officinalis Lowell Ahart 2002-9-8 9931 Butte On the south side of the paved road, just south of the first parking spaces at the Feather Falls Trailhead, in Bryant Ravine, about 2 miles north by road from the town of Feather Falls. 741 Comment
  SBBG127999  Mentha arvensis L. Ahart 2009-7-9 16009 Butte E side of Ten Mile House Rd, upper Bidwell Park, ca. 0.75 mi W of Hwy 32, ca. 10 mi NE of Chico 236 Comment
  CHSC20720  Mentha canadensis M. S. Taylor 1975-8-31 885 Butte On Ernies Island in Butte Creek, ca. 50 ft s of Humboldt Rd, ca. 1/2 mi e of Butte Meadows. 1341 Comment
  JEPS87131  Mentha spicata Lowell Ahart 1992-7-23 6831 Butte about 1.25 mi nw Oroville Dam (bottom of Oregon Gulch, n of the Thermalito Diversion Pool, Lake Oroville Recreation Area); Lake Oroville Recration Area, Oregon Gulch 91 Comment
  SEINET178042  Mentzelia dispersa E. B. copeland 1929-7-19 385 Butte Jonesville, found on two rock -slides in full sunlight, along Butte Creek. 1550 Comment
  CHSC47992  Mertensia ciliata Vernon Oswald 1985-6-3 1807 Butte Scotts John Rd. 0.9 mi n of Rd 26N27 which connects Humboldt Rd. and Humbug Rd. ca. 2.25 air miles ene of Jonesville. Along the creek. 1767 Comment
  CHSC76341  Mertensia ciliata L. P. Janeway 1999-7-17 6507 Butte Along Scotts John Creek 0.2 mi north of the road that connects Humboldt Road and Humbug Road. 1749 Comment
  SD4159  Mertensia ciliata var. stomatechoides E. B. Copeland 1930-6-23 Butte Jonesville 1500 Comment
  CAS-BOT-BC428753  Micranthes californica Lowell Ahart 1981-3-29 2715 Butte Along the edge of Ponderosa Way, about 1/8 mile south of the Ponderosa Dam, near Forbestown. 350 Comment
  CHSC30372  Micranthes integrifolia J. D. Jokerst 1979-3-5 1138 Butte Top of North Table Mt., 300 m NW of the intersection of Cherokee Rd and the E edge of section 17. Comment
  CHSC3287  Micranthes integrifolia M. L. Hillier 1966-3-6 Butte 4 miles s.e. of C.S.C. Admin. build. on the Skyway to Paradise about 50 ft. from the rd. on the s. side of Butte Creek. Comment
  CHSC3638  Micranthes integrifolia Alice L. Stoll 1966-3-7 50 Butte Near Covered Bridge, Honey Run Road, Paradise. Comment
  CHSC108868  Micranthes nidifica Lowell Ahart 2012-3-23 17779 Butte In a small meadow opening in brush, about 100 yards south of the intersection of Guardian Ten Mile House Road, about 1/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. 437 Comment
  CHSC40549  Micropus californicus var. californicus Ahart; Jokerst 1985-3-24 4852 Butte Serpentine Point, west of Yankee Hill. 550 Comment
  CAS-BOT-BC348700  Microseris acuminata Lowell Ahart 1979-5-11 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  CHSC30418  Microseris acuminata J. D. Jokerst 1980-4-1 541 Butte Ca 1.0 mi E of Richardson Springs, N of the East Branch of Mud Creek. 274 Comment
  POM35004  Microseris acuminata C. C. Bruce 1898-03 1993 Butte Plains [no specific locality given] Comment
  CHSC31605  Microseris douglasii L. Ahart 1978-4-27 1665 Butte Peter Ahart Ranch, Honcut. Fields. 50 Comment
  CAS-BOT-BC348876  Microseris douglasii subsp. douglasii Lowell Ahart 1985-4-29 4887 Butte Peter Ahart Ranch, about 2 miles north and 2 miles east of Honcut, about 12 miles south of Oroville 50 Comment
  CHSC20962  Microsteris gracilis M. S. Taylor 1974-3-5 78 Butte On old dirt road parallel to Cohasset Road, near entrance to Seven-toed Pete's Wildlife Reserve, ca. 6 mi n of Chico. Comment
  CHSC24988  Microsteris gracilis M. Coulon 1974-3-3 39 Butte Located along the w side of Cohasset Road approx. 10 miles n of Chico, near Seven Toed Petes Wildlife refuge. Comment
  SD87566  Microsteris gracilis E. B. Copeland 1931-6-29 Butte Jonesville. In sandy open spaces by Butte Creek. 1500 Comment
  RSA535780  Mimulus angustatus David M. Thompson 1988-3-24 853 Butte Cohasset Ridge. Griffith residence, 4.4 mi NE of Keefer Road along cohasset Hsy, then 0.4-0.6 mi s along private dirt road; 396 Comment
  UC767436  Mimulus bicolor R. F. Hoover 1936-5-21 1161 Butte 7 mi n Chico Comment
  POM173673  Mimulus breweri H. F. Copeland 1928-8-17 958 Butte Jonesville. Comment
  SEINET10570115  Mimulus discolor Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4161 Butte T20N R6E se sec 6. Along Bean Creek Rd, ca. 4.5 mi s of Little Bald Rock, ca. 17.5 mi ne of Oroville. Foothill Woodland; 600 m. 600 Comment
  RSA0087958  Mimulus glaucescens Christopher T. Ivey 2013-5-9 378 Butte Paradise Lake, SE margin of lake, about 0.5 km along footpath from parking lot at end of Lucretia Rd. 780 Comment
  UCD96096  Mimulus glaucescens Dena Grossenbacher; Brian Green 2008-5-3 814 Butte Along Bardees Bar Road about 0.1 miles from Bardees Bar. 371 Comment
  HSC32415  Mimulus guttatus Kitsy Kelly 1974-4-20 27 Butte Table Mtn. Volcanic area 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
  LA38958  Mimulus guttatus Frank W. Peirson; 1926-6-21 6775 Butte Butte Meadows, Humbolt Road Comment
  POM183038  Mimulus kelloggii A. A. Heller, H. E. Brown 1902-5-6 5464 Butte Berry Canyon (near Clear Creek). Comment
  CHSC28680  Mimulus moschatus M. S. Taylor 1978-7-21 1827 Butte On s side of Oroville-Quincy Hwy along creek in meadow in Yellow Pine Forest, ca. 14 mi n of Lake Madrone. 1463 Comment
  SEINET10863351  Mimulus moschatus Mary Susan Taylor 1975-8-31 Taylor 881 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
  HSC92448  Mimulus pilosus L. Ahart 1982-8-22 3752 Butte Along edges of N Honcut Creek, a little S of the Peter Ahart Ranch, ca. 0.75 mi. N and 2.75 mi. E of Honcut, ca. 12 mi. S of Oroville 40 Comment
  JEPS117422  Mimulus primuloides subsp. primuloides Lowell Ahart 2010-9-28 17255 Butte On damp black soil, about 10 yards west of Big Kimshew Creek, about 100 yards east of the poor dirt road, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrood Reservoir 1886 Comment
  JEPS117713  Minuartia cismontana Lowell Ahart 2010-4-30 16602 Butte Open are along a ridge, on both sides of a trail, west of disk golf area, on a ridge about 350 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 353 Comment
  UCD80208  Minuartia douglasii CNPS SN Foothill Team 2005-3-31 SNFN 0031 b Butte CDFG North Table Mountain Wildlife Area, located in the Table Mt. Ecological Reserve on a 'lava finger' in the middle of the northern portion of the reserve. 364 Comment
  CHSC76001  Mollugo verticillata Lowell Ahart; Vernon H. Oswald 1999-8-13 8176 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
  JEPS103455  Mollugo verticillata Lowell Ahart 2002-10-17 9983 Butte On the gentle hills below the high water line of Lake Oroville, ca 1 1/2 miles S of Highway 162 (Oroville Quincy Highway), ca 3 miles (air) NE of Oroville Dam. 227 Comment
  CAS-BOT-BC435073  Mollugo verticillata Lowell Ahart 1979-5-20 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  CAS-BOT-BC219943  Monardella breweri subsp. lanceolata Lowell Ahart 1983-7-29 4255 Butte About 3 miles east of Milsap Bar, about 25 miles north-east of Oroville 1100 Comment
  SD6873  Monardella breweri subsp. lanceolata R. M. Austin 1883-1 Butte Comment
  SEINET10582062  Monardella lanceolata A. Graff 1993-7-23 Graff 342 Butte Plumas National Forest. Hwy. 70, 2 miles past Arch Rock Tunnel, on left roadside. T23N,R5E,S14. Small, dense population growing in granitic soil in the understory of Abies concolor, Umbellularia californica, Quercus kelloggii, Q. chrysolepis, Platanus racemosa. End of bloom. Comment
  RSA500423  Monardella lanceolata var. lanceolata Vernon H. Oswald 1989-6-8 3801 Butte Truex Rd just n of the Hwy 70 bridge over the North Fork of the Feather River 335 Comment
  CHSC65566  Monardella odoratissima R. Banchero 1981-6-26 530 Butte Oak Point where Keyser Ck runs through. 1487 Comment
  UC175380  Monardella odoratissima subsp. glauca A. A. Heller 1913-7-7 10792 Butte near Stirling 1036 Comment
  CHSC52228  Monardella odoratissima subsp. pallida L. P. Janeway; R. A. Schlising 1988-7-22 3067 Butte Upper Philbrook cyn, 0.7 mi W of the pass. 1889 Comment
  RSA14298  Monardella odoratissima subsp. pallida Daniel Cleveland 1882-7-14 s.n. Butte [?] House Comment
  CHSC43015  Monardella sheltonii L. P. Janeway 1987-6-8 2178 B Butte 5.7 mi south of Big Bar Mtn (via rd). Rocky S-facing cutbank; overlooking young forest plantation. 792 Comment
  CHSC110443  Monardella venosa B. Castro 2007-5-19 1623 Butte Sacramento Valley. Ca 5.5 air mi SE of town of Paradise, in bottom of unnamed canyon just S of Neal Road, ca 70 ft N of creek channel directly under transmission lines. 85 Comment
  CHSC59107  Monardella venosa L. P. Janeway; B. Castro 1992-5-9 4162 Butte Unnamed canyon on southeast side of Neal Road up canyon ca 1/2 mi from the Butte County Land Fill; ca 1 3/4 mi northeast of Hwy 99 and directly under the high voltage power transmission lines. 88 Comment
  CDA40936  Monardella venosa James D. Jokerst & Barbara Castro 1992-5-19 3355 Butte Unnamed canyon north of Nugen Canyon on the south side of Neal Rd. near the Butte County Sanitary Landfill. Comment
  UCD125266  Monardella venosa James D. Jokerst 1992-5-19 3355 Butte Unmaned canyon north of Nugen Canyon on the south side of Neal Road, near the Butte County Sanitary Landfill. 76 Comment
  RSA718313  Monardella villosa subsp. sheltonii L. Ahart 2006-6-9 12655 Butte on east side of Bardees Bar Road, north of the small stream, about 1/8 mile west of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga 386 Comment
  CHSC34130  Monochoria vaginalis L. Ahart 1981-9-19 3193 Butte In a rice field a little w of the Butte County Rice Experiment Station, ca. 3 mi w of Hwy 99 on Hwy 162, ca. 3 mi n of Biggs. 35 Comment
  UCD39222  Monochoria vaginalis Beecher Crampton 1957-9-17 4628 Butte 5 miles northwest of Biggs. Biggs Rice Experiment Station. Comment
  CAS-BOT-BC444888  Montia fontana A. A. Heller 1914-3-18 11209 Butte Eight miles north of Oroville Comment
  JEPS124215  Montia fontana Lowell Ahart 2015-2-26 19939 Butte About 1/4 mile north of Miners Ranch Reservoir, about 4 miles east of Oroville. Comment
  CHSC32764  Montia fontana subsp. amporitana J. D. Jokerst 1981-3-29 1272 Butte Top of North Table Mt, ca 1.0 mi N of Cherokee Rd. 373 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
  CHSC1377  Montia parvifolia V. Holt 1935-5-1 Butte Butte Creek near Covered Bridge. 91 Comment
  CHSC7114  Montia parvifolia Paul Kinnison 1969-5-6 11 Butte On Highway 70 e 200 yds. up Bear Creek where it hits the road. Just before the abandon tunnel. Comment
  CAS-BOT-BC445134  Montia parvifolia Mrs. C. C. Bruce 1897-6-1 1117 Butte Forest Ranch Comment
  SEINET10605678  Muhlenbergia andina Vernon H. Oswald, Lowell Ahart 1989-8-15 Oswald 3937 Butte Soda Ridge Rd, 1.4 mi w of its junction with Coon Hollow Rd, ca. 1.2 mi (air) n of Philbrook Reservoir. Locally abundant in moist soil on the edge of a shallow, marshy, spring-fed lake n of and visible from the road. T25N R5E se/S6, Red Fir Forest. 1753 Comment
  SEINET10605679  Muhlenbergia andina Vernon H. Oswald, Lowell Ahart 1989-7-21 Oswald 3885 Butte T26N R5E nw/nw/S29, Red Fir Forest. Meadow paralleling Humbug Rd, just ne of the West Branch of the Feather River, ca. 0.5 mi ne of Snag Lake, ca. 2.5 mi (air) se of Jonesville. Along a small drainage in a marshy part of the meadow. 1780 Comment
  CAS-BOT-BC260531  Muhlenbergia filiformis Lowell Ahart 1981-9-15 3168 Butte Along French Creek 1300 Comment
  CHSC42437  Muhlenbergia filiformis Lowell Ahart 1987-5-6 5558 Butte On a gravel bar along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC61544  Muhlenbergia filiformis Lowell Ahart 1993-7-6 7047 Butte On the south side of the dirt road, about 1/4 mile west of the Lost Creek Reservoir. 1036 Comment
  SEINET10827782  Muhlenbergia filiformis Edwin B. Copel 1929-7-16 Copeland 339 Butte Jonesville. In open wet ground; the first grass to appear in such places. 1550 Comment
  CHSC42763  Myosotis laxa Lowell Ahart 1987-8-3 5848 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC106872  Myosurus minimus Lowell Ahart 2011-5-2 17349 Butte Open pasture field, about 100 yards west of the dredged edge of North Honcut Creek, about 2 1/2 miles north and 2 1/2 miles east of Honcut, about 12 miles southeast of Oroville. 58 Comment
  SEINET10965657  Myosurus minimus var. apus Lowell Ahart 1991-5-20 Ahart 6656 Butte On the north side of Rutherford Road, Gray Lodge Waterfowl Management Area, about 1/4 mile west of Pennington Road, about 10 miles southwest of Gridley. Freshwater Marsh. T17N R1E S13. 20 Comment
  CHSC44208  Myriophyllum hippuroides Vernon Oswald 1988-7-4 3550 Butte Rancho Llano Seco. 7-Mile Lane 0.7 mi n of Nelsoon West Rd. Marshy slough. 30 Comment
  JEPS120717  Myriophyllum spicatum Lowell Ahart 2013-10-16 19113 Butte Thermalito Afterbay, about 20 feet north of the base of the large rock levee, about 100 yards north of Larkin Road, about 4 air miles north of East Biggs. Comment
  CAS-BOT-BC60374  Nasturtium officinale Lowell Ahart 1980-5-12 2258 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CAS-BOT-BC60375  Nasturtium officinale Lowell Ahart 1989-5-23 6239 Butte North of the new subdivision road, 0.5 mile east of Dunstone Drive, about 0.5 mile north of Bangor Park Road. 76 Comment
  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
  CHSC50415  Navarretia capillaris Vernon Oswald; Lowell Ahart 1990-6-27 4331 Butte Oro-Quincy Hwy at the south edge of Walker Plains, 0.3 mi west-northwest of Buckeye (site). 1536 Comment
  CHSC11950  Navarretia divaricata E. B. Copeland 1930-7-17 443 Butte Jonesville. 1550 Comment
  CHSC102842  Navarretia filicaulis Lowell Ahart 2009-6-30 15967 Butte Along the Guardian Rock Trail, about 1/4 mile (air) southwest of the intersection of Ten Mile House Road and Highway 32, Upper Bidwell Park, about 10 miles northeast of Chico. 398 Comment
  CHSC62126  Navarretia filicaulis B. Castro 1987-5-21 123 Butte Ca 9 mi E of Chico via Hwy 32 and ca 2 mi E on Altatina Drive. In middle of dirt road along top of ridge. 487 Comment
  SD7460  Navarretia filicaulis Mrs. R. M. Austin 1883-1 Butte Butte Co Comment
  SEINET7373988 Image available Navarretia filicaulis Lowell Ahart 2013-7-1 18818 Butte Three and one-quarter miles SW of Forbestown, intersection of Forbestown Rd. and Black Bart Rd. 150 yds E of intersection. Comment
  CHSC91110  Navarretia heterandra Lowell Ahart 2005-5-28 11823 Butte Pasture, on the north side of Falager Ct., south of the Durham Pentz Road, east of Highway 99 East, about 4 miles east of Durham. 70 Comment
  JEPS104076  Navarretia heterandra Lowell Ahart 2003-6-18 10290 Butte About 150 yd w of the dredge piles along North Honcut Creek, ca 2 1/2 mi n and 2 1/2 mi e of Honcut, ca 12 mi se of Oroville. 60 Comment
  JEPS126592  Navarretia heterandra Lowell Ahart 2016-5-24 20846 Butte About 200 yards west of Loma Rica Road, about 250 yards southwest of the intersection of Loma Rica Road and La Porte Road, about 3 1/2 miles (air) northeast of Honcut. Comment
  UCD85193  Navarretia heterandra CNPS SN Foothill Team 2006-5-18 SNNR 0978 Butte Shasta Land Trust Easement, Hathaway Ranch. 268 Comment
  CHSC36719  Navarretia intertexta D. H. Ikeda 1980-5-26 387 Butte 1.0 mi w of intersection of Lunt Rd. and Nelson-Bar Rd. Comment
  UC172824  Navarretia intertexta A. A. Heller 1913-5-25 10759 Butte near Pentz 152 Comment
  CHSC31825  Navarretia leucocephala L. Ahart 1977-4-15 1296 Butte Peter Ahart Ranch, Honcut. On bottom of vernal pool. 50 Comment
  UCD37442  Navarretia nigelliformis Beecher Crampton 1960-6-15 5622 Butte Butte County, 10 miles southeast of central Chico. Comment
  CAS-BOT-BC233622  Navarretia pubescens A. A. Heller; H. E. Brown 1902-5-14 5477 Butte Berry Canyon, near Clear Creek Comment
  CDA40119  Navarretia pubescens L. Ahart 2005-5-28 11819 Butte South side of Nelson Avenue, east of the bridge across the Thermalito Forebay, Thermalito. Comment
  CAS-BOT-BC232628  Navarretia pubescens Clare B. Hardham 1975-6-7 20432 Butte Cherokee Comment
  SEINET10902898  Navarretia tagetina Mary Susan Taylor 1978-5-7 Taylor 1597 Butte In Valley Grassland, on E side of Williams Road, ca. 1/4 mi N of Pentz Road, on Butte College Campus, ca. 15 mi S of Chico. 30 Comment
  SEINET12329565  Nemacladus interior Unknown 1984-1 4669 Butte At the Ponderosa Dam, ca 2 mi NW of Forbestown;along dirt road to the generator on the N side of 370 Comment
  RSA0000011  Nemophila fallax C. C. Bruce 1897-03 2037 Butte [No location information on label.] Comment
  CHSC32727  Nemophila heterophylla M. S. Taylor 1981-4-8 3494 Butte At end of Dark Canyon Rd around the turnout near the restroom, up from the boat ramp to West Branch Feather River, ca. 3.5 mi s of its jct with Big Bend Rds jct, ca. 5 air mi s of Jarbo Gap on Hwy 70. 304 Comment
  SFV11585  Nemophila heterophylla M. L. Vincent 1964-4-8 504 Butte Sierra Nevada Highway 40, 1 mile northeast of new bridge. 450 Comment
  SEINET10497053  Nemophila heterophylla Mary Susan Taylor 1981-3-16 Taylor 3411 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
  CAS-BOT-BC7219  Nemophila menziesii H. E. Brown 1897-4-15 145 Butte Near Clear Creek 53 Comment
  CHSC62467  Nemophila menziesii var. menziesii B. Castro; L. Janeway 1991-4-19 443 Butte Ca 10 air mi NE of Oroville, 0.25 mi NW of Oregon Gulch, on gentle E-facing slope in N part of a 'Y' formed by jcn of old RR bed and road from Oregon Gulch to Hollow Spring. 295 Comment
  POM65386  Nemophila menziesii var. menziesii Winifred Paine 1902-3-29 s.n. Butte Chico. Comment
  CHSC46084  Nemophila pedunculata Lowell Ahart 1989-3-25 6201 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
  CHSC70797  Nemophila spatulata B. Castro 1995-5-18 570 Butte Ca 2 air mi N of Feather Falls, towards western end of Watson Ridge, in meadow at the old Watson Cabin site, north of USFS Rd 21N25. In upper third of meadow, in very moist soil just downslope from spring. 1109 Comment
  CHSC66446  Nicotiana acuminata var. multiflora Vernon H. Oswald; Lowell Ahart 1996-6-10 7736 .1 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. On the riprapped bank of the Sacramento River at the N end of the Riparian Sanctuary. 28 Comment
  UC76176  Nicotiana glauca H. E. Brown Nov 15 1896-Nov 30 1896 116 Butte near Clear Creek 53 Comment
  RSA0006688  Nuphar lutea subsp. polysepala E. B. Copeland 1930-6-29 415 Butte Jonesville. 1700 Comment
  CAS-BOT-BC400069  Nuphar polysepala E. B. Copeland 1929-7-29 s.n. Butte Jonesville, near Butte Creek House 1750 Comment
  CDA14775  Nymphaea odorata G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-26 3379 Butte Madrone Lake (Berry Creek). 600 Comment
  UCD137748  Nymphaea odorata T. C. Fuller 1969-8-19 18816 Butte N. side of Nelson West Rd., just east of Chico-Butte City Road, dodge Land. Comment
  CHSC108854  Oemleria cerasiformis Lowell Ahart 2012-3-2 17770 Butte About 30 yards south of Ten Mile House Road, about 1/4 mile west of Highway 32, about 9 miles northeast of Chico. Comment
  CHSC6625  Oenothera M. MacArthur 1968-6-17 319 Butte NE side of Building T, Chico State College campus. 60 Comment
  SEINET10529930  Onychium densum Mary Susan Taylor 1976-4-24 Taylor 1075 Butte Abundant on Big Bald Rock, ca. one quarter mi W of Bald Rock Rd, ca. 3 mi E of Lake Madrone, ca. 13 mi NE of Orovil le; with Quercus chrysolepis. 998 Comment
  CHSC54160  Ophioglossum californicum Lowell Ahart 1991-3-11 6642 Butte Joie Osgood Ranch, about 2 1/2 miles north and 3 and 3/4 miles east of Honcut, about 12 miles south-east of Oroville. 91 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
  RSA0087779  Orobanche fasciculata E. K. Balls 1957-5-22 22511 Butte N. Fork Feather River, on trail to Buck's Lake, above Camp Rogers. 655 Comment
  SEINET10500395  Orobanche fasciculata var. franciscana Lowell Ahart 1985-5-10 Ahart 4961 Butte 1/2 mile east of Potter Ravine, south of the east branch of Potter Ravine, about 2 1/2 miles north-east of Oroville Dam. Comment
  CHSC91671  Orthilia secunda L. P. Janeway; Matt Brown 2005-7-13 8491 Butte Northern High Sierra Nevada. Plumas National Forest; Along Cedar Creek 0.4 km south of the Plumas County line; about 1.9 km northwest of North Fork Feather River. 1244 Comment
  CAS-BOT-BC457670  Orthilia secunda H. F. Copeland 1920-8-29 153 Butte Jonesville woods 1219 Comment
  SEINET10549648  Orthocarpus attenuatus Mary Susan Taylor 1975-4-11 Taylor 455 Butte Ca. 1/4 mi E of Salmon Hole, between Chico Creek and Upper Bidwell Park Rd, Upper Bidwell Park, Chico. Associates: Quercus spp., Pinus sabiniana, Galium aparine, Brodiaea hyacinthina. Foothill Woodland. 183 Comment
  SEINET10549650  Orthocarpus attenuatus Mary Susan Taylor 1974-4-20 Taylor 184 Butte On W side of Richardson Springs Rd, ca. 2 mi NE of Cohasset Rd, ca. 6 mi N of Chico. Comment
  RSA0006075  Orthocarpus bicolor A. A. Heller, H. E. Brown 1902-5-10 5519 Butte Berry Canyon (Near Clear Creek). Comment
  NY90837  Orthocarpus brownii A. A. Heller 1902-5-6 5459 Butte Berry Canyon, (near Clear Creek). Comment
  RSA20876  Orthocarpus erianthus Carl B. Wolf 1937-3-29 8337 Butte Sierra Nevada foothills, 7.8 miles below Paradise on Chico Road. 152 Comment
  SEINET10964398  Orthocarpus lithospermoides Mary Susan Taylor 1978-5-6 Taylor 1620 Butte Along Cohasset Road, ca. 8 mi N of Chico; Foothill Woodland. 137 Comment
  SEINET12318313  Orthocarpus purpurascens S. M. Leary 1978-1 14 Butte North Table Mountain, ca 6.5 mi N of Oroville, ca 2 mi NNW of Cherokee Rd 396 Comment
  CHSC30979  Osmorhiza chilensis M. S. Taylor; R. Schlising 1980-7-6 3082 Butte On w side of Hwy 32, ca. 0.3 mi s of Soda Springs Campground. 1127 Comment
  CHSC40214  Osmorhiza chilensis Lowell Ahart 1985-7-9 5119 Butte Along the dirt road, about 1/4 mile south of the bridge across Fall River, east of Fall River, about 1/2 mile west of Lumpkin Ridge Road, about 2 1/2 miles north-east of Camp 18, about 9 miles north-east of Feather Falls. 914 Comment
  CHSC42636  Osmorhiza chilensis Vernon Oswald 1984-6-11 1272 Butte Humboldt Rd. to Butte Meadows, 2.0 mi n-e of its jct. with Hwy 32. 1380 Comment
  CHSC42640  Osmorhiza occidentalis Vernon Oswald 1985-7-21 1908 Butte Jones Meadow Rd. ca. 0.1 mi s of its jct. with the dirt road coming in from Inskeep, ca. 0.7 air mi wnw of Jones Meadow Lake. 1737 Comment
  CHSC113941  Oxypolis occidentalis Lowell Ahart 2014-8-13 19703 Butte Near a small 'pond,' in the southwest part of a large wet meadow, about 110 yards southeast of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CAS-BOT-BC316885  Packera eurycephala var. lewisrosei John Thomas Howell 1978-4-18 52847 Butte Magalia 731 Comment
  CAS-BOT-BC316896  Packera eurycephala var. lewisrosei Lewis Samuel Rose 1954-5-31 54085 Butte Feather River Canyon, near Pulga 396 Comment
  CAS-BOT-BC316899  Packera eurycephala var. lewisrosei Clarence Roy Quick 1964-7-9 64 -50 Butte Steep rocky slope north of Jarbo Gap Comment
  UC831739  Packera eurycephala var. lewisrosei A. A. Heller 1938-5-28 15115 Butte 23 mi from Oroville (on the Feather River Highway); Feather River Highway Comment
  SEINET10948596 Image available Packera eurycephala var. lewisrosei Lewis S. Rose 1939-6-7 Rose 39247 Butte North Fork of Feather River. 3 mi. s. of Pulga. Canyon side. 610 Comment
  CAS-BOT-BC10502  Paeonia brownii A. A. Heller 1915-6-11 12046 Butte Jonesville in the Sierra Nevada 1676 Comment
  CHSC28559  Panicum acuminatum var. acuminatum M. S. Taylor 1978-7-21 1839 Butte Big Bald Rock, ca. 2 mi e of Lake Madrone. 997 Comment
  CHSC4392  Panicum acuminatum var. acuminatum V. Hagaman 1966-5-21 Butte Alligator Hole in Upper Bidwell Park just n of stream-on bank. Comment
  UC596487  Panicum acuminatum var. acuminatum R. F. Hoover 1936-5-21 1165 Butte 7 mi n Chico; n of Chico Comment
  CAS-BOT-BC253704  Panicum capillare A. A. Heller 1916-9-30 12665 Butte S [5?] miles N of Oroville Comment
  RSA724812  Panicum dichotomiflorum L. Ahart 2006-9-11 13308 Butte South edge of the North Fork of the Feather River, North side of Highway 70, About 1/8 mile west of the Poe Dam, About 3/4 mile northeast of Pulga, About 21 miles (air) northeast of Oroville. 432 Comment
  CHSC51041  Panicum dichotomiflorum subsp. dichotomiflorum Lowell Ahart 1990-8-15 6582 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. 228 Comment
  UC625524  Parvisedum pumilum Frank W. Gould 1938-4-23 306 Butte 2 mi n of Chico (along road) 60 Comment
  CHSC32589  Pectocarya pusilla J. D. Jokerst; Jeri Donovan 1981-3-21 1259 Butte Ca 0.5 mi N of Horseshoe Lake (ca 3 mi E of Chico, in Bidwell Park). Where foothills begin their initial rise. Comment
  CHSC36083  Pectocarya pusilla R. Schlising; J. D. Jokerst 1981-4-15 4032 Butte E and S of Palermo, along Swedes Flat Road and Lower Honcut Creek. Comment
  CHSC2489  Pedicularis densiflora W. Fitzwater 1958-3-19 Butte Forest Ranch area ca. 15 mi. NE of Chico. Comment
  POM297982  Pedicularis densiflora A. A. Heller 1919-3-29 13097 Butte Cherokee mine. Comment
  CAS-BOT-BC71201  Pellaea andromedifolia Ira L. Wiggins 1925-3-22 1487 Butte Chico Creek Canyon about five miles above Chico Comment
  CAS-BOT-BC67552  Pellaea mucronata Lowell Ahart 1979-4-6 s.n. Butte 3 mi. nw of Bangor, along the west side of North Honcut Creek. 100 Comment
  CAS-BOT-BC67599  Pellaea mucronata Lowell Ahart 1983-3-28 3912 Butte Near the Forbestown Res., in a dry open area above the road and on the east side of Woodleaf Creek, 450 Comment
  SEINET10834168  Pellaea mucronata Mary Susan Taylor 1980-4-18 Taylor 2524 Butte On dry open bluff, on E side of Humbug Road, ca. 3 mi SW of Nimshew; Foothill Woodland. With J.D. Jokerst. 518 Comment
  SEINET10529971  Pellaea mucronata subsp. californica Mary Susan Taylor 1980-4-6 Taylor 2432 Butte T8N R5E ec border sec 3. Junction of Rocky Honcut Creek and Swedes Flat Rd, ca. 2 mi E of Oroville-Bangor Hwy, ca. 10 mi SE of Oroville. With L. Ahart & J.D. Jokerst. 366 Comment
  CHSC27977  Penstemon deustus var. suffrutescens M. S. Taylor 1978-7-18 1710 Butte On e side of Humboldt Peak at Humboldt Summit. 2133 Comment
  CHSC29802  Penstemon laetus var. leptosepalus M. S. Taylor; J. D. Jokerst 1980-6-14 2878 Butte On n side of Zink Rd, near entrance to Zink Ranch, ca. 2 mi e of Lake Madrone. 762 Comment
  CHSC62789  Penstemon laetus var. leptosepalus L. P. Janeway 1993-6-3 4369 Butte Plumas National Forest. South end of Swayne Hill, along the road to Big Bar Mtn (23N28). 731 Comment
  POM220089  Penstemon laetus var. leptosepalus H. F. Copeland 1927-9-4 480 Butte Jonesville. Comment
  UC887104  Penstemon laetus var. leptosepalus Lewis S. Rose 1939-6-7 39236 Butte 3 mi s Pulga (S Fork Feather River); , s of Pulga 609 Comment
Read comments
Jul 24 2008
  CAS-BOT-BC245635  Penstemon personatus Lowell Ahart 1984-7-19 4761 Butte About 1 mile north-east of Bald Mountain, about 6 miles north-east of Stirling City 1900 Comment
  CHSC36300  Penstemon personatus M. S. Taylor 1982-8-16 4998 A Butte Along rd from Bald Mt to High Rock Ravine, ca. 4 air mi ne of Stirling City. 1706 Comment
  RSA443117  Penstemon personatus L. Ahart, P. Ahart 1984-7-19 4761 Butte About 0.5 mile east of Bald Mountain, about 5 miles NE of Stirling City. 1900 Comment
  CAS-BOT-BC239451  Penstemon rydbergii var. oreocharis A. A. Heller 1928-7-10 14652 Butte At Butte Meadows Comment
  NY651299  Penstemon rydbergii var. oreocharis E. B. Copeland 1931-6-20 689 Butte Jonesville. On gravel bars by Butte Creek. 1500 Comment
  JEPS104146  Pentagramma triangularis subsp. triangularis Lowell Ahart 2003-4-15 10088 Butte Northeast of the tall Digger Pine on the south edge of Beatson Hollow, ca 3/4 mi nw of the iron gate and fence, nw of Cherokee Rd, North Table Mountain, ca 7 mi (air) n of Oroville. 299 Comment
  CAS-BOT-BC77087  Pentagramma triangularis subsp. triangularis Rod O'Sullivan 1977-2-12 4 Butte Little Chico Creek Canyon, 9.2 mi. NE of Chico on Hwy 32 and 1 mile E of Tenmile House, Paradise Quadrangle 268 Comment
  SEINET13095371  Perideridia bolanderi subsp. involucrata Unknown 1967-6-21 3778 Butte Road to Magalia 1.8 miles N of Pentz Store. 137 Comment
  JEPS115705  Perideridia kelloggii Lowell Ahart 2009-7-9 16028 Butte About 20 yards east of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 234 Comment
  CHSC64034  Perideridia parishii subsp. latifolia S. C. Morey 1983-8-4 708 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  CHSC26610  Persicaria amphibia M. P. Hayes 1977-9-24 118 Butte In drainage of Little Butte Creek where Little Butte Creek intersects road Z (Chico-Butte City Highway). In ditch along edge of road. 30 Comment
  CHSC48661  Persicaria amphibia Vernon Oswald 1987-7-4 3091 Butte Rancho Aquas Frias. 7-Mile Lane, 2.8 mi s of Dayton-Ord Hwy, between Chico and Butte City. Growing in a dry roadside ditch. 33 Comment
  UCD99056  Persicaria capitata H. Clem Meith 1966-9-5 Butte Oroville. Comment
  CAS-BOT-BC413705  Persicaria hydropiper Lowell Ahart 1982-10-11 3864 Butte About 1/10 mile west of the Gray Lodge Headquarters, Gray Lodge, about 12 miles south-west of Gridley 35 Comment
  CHSC113118  Persicaria lapathifolia Lowell Ahart 2013-11-17 19262 Butte Along the sides of McCabe Creek, below the high water line of Lake Oroville, about 5/8 of a mile southwest of the Enterprise Bridge across Lake Oroville. 245 Comment
  CHSC37111  Persicaria maculosa L. Ahart 1982-10-15 3891 Butte On bottom of North Honcut Creek, ca. 2.7 mi ne of Honcut. 50 Comment
  CAS-BOT-BC419173  Persicaria maculosa Lowell Ahart 1981-9-19 3189 Butte Cresta Power House 550 Comment
  SEINET5726582 Image available Petrorhagia dubia Gary L. Carlin 1971-1 28 Butte Honey Run Road crossing of Butte Creek, 3.7 miles east of Chico.; Chico 122 Comment
  CHSC13885  Phacelia egena M. A. Davis 1969-4-10 9 Butte Comment
  CHSC69213  Phacelia egena J. D. Jokerst 1984-5-19 2022 Butte Along edge of road cut for Pulga Road within 100 feet of its junction with Highway 70 in the canyon of the North Fork of the Feather River. Comment
  CHSC59549  Phacelia imbricata Lowell Ahart 1992-9-20 6922 Butte Below the high water line of Lake Oroville, about 1/8 mile west of the Enterprise Boat Launch Ramp, about 3/4 mile south-west of Rocky Point. 243 Comment
  SEINET10969177  Phacelia imbricata Lowell Ahart, Peter Ahart 1984-5-28 Ahart 4654 Butte On a large road cutbank along Hwy 40, now called Dark Canyon Rd, ca. 2 mi E of Old Yankee Hill, ca. 16 mi NE of Oroville; Foothill Woodland; 450 m. 450 Comment
  UC1046983  Phacelia imbricata Butte just below Los Plumas road junction with the Feather River Highway, about 14 miles northeast of Oroville Comment
  CHSC39122  Phacelia procera R. A. Schlising 1980-7-5 3838 Butte First crossing of Butte Creek on main road, e of Butte Meadows; at immediate roadside in region of streamside vegetation. 1341 Comment
  POM73566  Phacelia purpusii C. C. Bruce 1898-05 2388 Butte Mountains. Comment
  CHSC38467  Phacelia tanacetifolia Vernon Oswald 1983-3-14 181 .5 Butte Upper Bidwell Park, Chico, on the north rim ca. 0.9 mi e of the power lines. 320 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
  CAS-BOT-BC77373  Philadelphus lewisii A. A. Heller 1915-5-17 11875 Butte Canyon of Chico Creek 5 miles east of Chico; about 50 miles to the south, probably along the Bear River 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
  UCD89627  Phleum pratense August L. Hormay 1929-6-28 s.n. Butte Chico Meadows. Comment
  CHSC93966  Phlox diffusa R. D. Fischer 2004-6-20 748 Butte Sierra Nevada Mountains, north-east corner of Butte County and ca. 2 miles west of Butte Meadows on Humboldt Road. Roadside. 1417 Comment
  UCD118397  Phlox diffusa E. B. Copeland 1931-6-19 683 Butte Jonesville. 2100 Comment
  RSA325114  Phoradendron bolleanum var. densum M. S. Taylor 1975-9-19 918 Butte Ca 0.5 mi N of Magalia, ca 50 ft E of Skyway. 610 Comment
  CHSC3253  Phoradendron densum Virginia Hagaman 1966-4-17 121 Butte 3.5 miles north of Magalia. Comment
  SEINET10936355  Phoradendron villosum Mary Susan Taylor 1981-1-5 Taylor 3373 Butte T21N R4E sw sec 6. Cherokee quad. Ca. 100 ft e of Pentz-Magalia Hwy, ca. 1 mi s of Kunkle Reservoir, ca. 3 mi s of Paradise. Foothill Woodland and Savannah; 1350 ft. 411 Comment
  UCD113673  Physocarpus capitatus B. Castro 1987-9-12 218 Butte At N edge of Butte Ck ca. 1.1 mi S of Ponderosa Way bridge, ca 1 mi S on the Butte Creek Trail, at base of rock slide with large boulders. 585 Comment
  JEPS95155  Phytolacca americana Lowell Ahart 1997-7-31 7758 Butte Durham, Durham Elementary School Durham Elementary School; Durham, Durham Elementary School 57 Comment
  CHSC46365  Pickeringia montana Lowell Ahart 1989-5-29 6304 Butte Along Robinson Mill Road, about 1 1/2 miles south of Forbestown Road. 670 Comment
  CHSC42502  Pinus attenuata Lowell Ahart 1987-5-11 5611 Butte Along Lumpkin Road, about 1.5 miles north-east of Forbestown Road. 426 Comment
  CHSC28693  Pinus ponderosa M. S. Taylor 1978-9-9 1914 Butte On w side of Bull Run Rd, ca. 11 mi s of Butte Meadows. 1463 Comment
  SEINET10530811  Pinus ponderosa Mary Susan Taylor 1978-9-9 Taylor 1914 Butte Along Bull Run Road, ca. 10-11 mi S of Butte Meadows in northern portion of the county; Yellow Pine Forest. 1463 Comment
  CHSC10728  Pinus sabiniana Lowell Ahart 1969-7-12 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC79  Pinus sabiniana M. Roberson 1956-5-14 Butte SW of Paradise, along Skyway. 426 Comment
  NY62730  Pinus sabiniana Anonymous 1925-7-22 s.n. Butte Chico Comment
  CHSC96234  Piptatherum miliaceum R. Fischer 2006-5-28 996 Butte Sierra Nevada foothills, adjacent Hwy. 32, below Forest Ranch in the Big Chico Creek Ecological Reserve off Lookout Trail. These bunch grasses were growing adjacent Hwy. 32, west side of road, and adjacent the BCCER. 487 Comment
  CHSC43590  Pistacia terebinthus Vernon Oswald 1987-4-29 2351 Butte Chico Tree Improvement Center (former USDA Plant Introdution Station) in se Chico 68 Comment
  SEINET10966243  Pityrogramma triangularis Mary Susan Taylor 1980-4-18 Taylor 2516 Butte W side of Humbug Road, ca. 1 mi S of Nimshew. With J.D. Jokerst. 610 Comment
  CHSC114949  Plagiobothrys Lowell Ahart 2015-3-10 19944 Butte 60 feet north of the fence, north of the parking area, north of Larkin Road, about 6 miles (air) southwest of Oroville. 44 Comment
  CAS-BOT-BC169827  Plagiobothrys Ira L. Wiggins 1411 Butte 3 1/2 mi E of Durham on Slate Land Colony Highway Comment
  CHSC111351  Plagiobothrys austiniae Lowell Ahart 2012-5-4 17982 Butte On damp bare soil, on the bottom and sides of a small vernal pool, on the south rim of Beatson Hollow, about 1/2 mile northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 351 Comment
  SEINET7072731  Plagiobothrys fulvus A. G. Vestal 1963-5-9 s.n. Butte About 14.2 miles southeast of Chico on Route 140. UTM Zone 10, 616438mE, 4383522mN. Coordinate datum: NAD 27.) Comment
  CHSC44480  Plagiobothrys greenei Lowell Ahart 1988-5-12 5995 Butte On the bottom of a mine hole, in a mined over area, about 1/2 mile north-east of the Honcut Cemetery, Joie Osgood Ranch, about 3 1/2 miles east and 1 1/2 miles north of Honcut. 60 Comment
  CHSC90101  Plagiobothrys nothofulvus Rebecca L. Hill 1990-3-21 1 Butte Ca. 20 yds se of jct of Oroville Chico Highway and Mesa Road, on the e side of Oroville Chico Hwy, ca. 5.5 mi of Chico. 47 Comment
  UC480696  Plagiobothrys nothofulvus H. F. Copeland 1923-4-1 600 Butte near Bidwell Park; Chico Comment
  SEINET10497553  Plagiobothrys nothofulvus Mary Susan Taylor, K. Tharp 1983-3-12 Taylor 5239 Butte T22N R2E nw sec 27. Chico quad. Along small rd off Stillson Canyon Rd (leading to Mannion property), ca. 3 mi sse of Chico. Elevation ca. 500 ft. 152 Comment
  CHSC67186  Plagiobothrys scriptus James D. Jokerst 1989-4-8 3091 Butte North Table Mtn., N and adjacent to Cherokee Rd. at E edge of mesa. Roadside area next to metal corral. Comment
  UCR70803  Plagiobothrys stipitatus C. B. Wolf 1937-5-14 08674 Butte Sacramento Valley, 5 mi NW of Chico on [Hwy 32; Nord Ave.] Hamilton City Rd 46 Comment
  CHSC112245  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2013-4-20 18562 Butte In corral at the barn, about 1/4 mile north of the Honcut Cemetary, about 3 1/4 miles (air) northeast of Honcut. 47 Comment
  CHSC112708  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2013-10-26 19208 Butte On the south side of Philbrook Creek, below the high water line (strand) of Philbrook Reservoir. 1681 Comment
  CDA40654  Plagiobothrys stipitatus var. micranthus L. Ahart 2002-5-7 9614 Butte About 30 yards east of the pond on the east side of Cherokee Road, North Table Mountain, about 4 miles (air) north of Oroville. Comment
  CHSC65897  Plagiobothrys stipitatus var. stipitatus Vernon H. Oswald 1996-4-10 7355 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. Along a check in an old irrigated pasture at the S end of Tract 7, Sanctuary 2. 33 Comment
  CHSC28979  Plagiobothrys tenellus R. A. Schlising 1980-3-17 3516 Butte E of Chico and SW of Paradise, along Skyway; on cliff edges above Butte Creek. 213 Comment
  SEINET10499838  Plantago bigelovii Lowell Ahart 1983-4-10 Ahart 3919 Butte S of a large wash, 1/10 mi e of the large barn, ca. 1.4 mi ne of Hwy 99 and Pentz Rd jct, ca. 16 mi s of Chico. Valley Grassland; 65 m. 65 Comment
  SEINET10499839  Plantago bigelovii Lowell Ahart 1984-4-24 Ahart 4584 Butte Peter Ahart Ranch, ca. 2.5 mi NE of Honcut, ca. 12 mi S of Oroville. Valley Grassland; 50 m. 50 Comment
  CHSC106870  Plantago coronopus Lowell Ahart 2011-5-1 17343 Butte North side of the intersection of Georgia Pacific Way and Feather River Blvd, about 100 yards east of Highway 70, about 1 mile south of Oroville. 42 Comment
  CHSC52097  Plantago coronopus Paul B. McKim 1979-4-21 10 Butte Ca. 11 mi n of Chico on Hwy. 99. 76 Comment
  HSC86822  Plantago coronopus Lisa Sedlacek 1978-4-18 15 Butte 25 yds. down from junction Hwy. 99 and Broyles Rd., NW corner of Butte County 61 Comment
  SEINET10499802  Plantago coronopus Mary Susan Taylor 1975-4-18 Taylor 481 Butte SW corner of Broyles Rd and Hwy 99, ca. 6 mi N of Chico; Valley Grassland. Associates: Orthocarpus erianthus and attenuatus, Layia fremontii, Limnanthes alba. 61 Comment
  CHSC109178  Plantago elongata Lowell Ahart 2012-5-4 17981 Butte On the bottom and sides of a small vernal pool, on the south rim of Beatson Hollow, about 1/2 mile northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 351 Comment
  JEPS104005  Plantago elongata Lowell Ahart 2003-4-8 10032 Butte On the high water line of a small vernal pool, ca 20 yd south of a faint poor dirt road, pasture field, ca 150 yd sw of the iron gate and fence, w of Cherokee Rd, North Table Mountain, ca 7 mi (air) n of Oroville. 348 Comment
  JEPS22686  Plantago elongata Rimo Bacigalupi with Drs. Herbert and Lucille Mason 1958-4-25 6324 -A Butte 1.25 mi s Wicks Corner (along road from Chico to Oroville) 94 Comment
  UCSC008612  Plantago elongata Lowell Ahart 2012-4-9 17835 Butte West of South Rim Trail, south part of Upper Bidwell Park, about 2-1/4 (air) miles northeast of Chico. 142 Comment
  CHSC41133  Plantago erecta B. Anthony 1967-4-9 43 Butte Bare Hole, along Yahi Trail, Bidwell Park, Chico. 1828 Comment
  CHSC4179  Plantago erecta M. Lee 1967-4-10 15 Butte In field, W. side of Cherokee Rd., ca. 8 1/2 mi. N. of Oroville. 373 Comment
  CHSC34246  Plantago lanceolata M. S. Taylor 1981-8-15 4180 Butte Weed lot on n side of the Skyway, Inskip. 1463 Comment
  CHSC47468  Plantago lanceolata Lowell Ahart 1973-8-13 264 Butte Growing along North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 1/2 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC61323  Plantago lanceolata Lowell Ahart 1993-7-23 7095 Butte On a large gravel bar on the west side of Fall River, about 100 yards west of the bridge across Fall River, about 6 (air) miles north-east of Feather Falls. 1036 Comment
  CHSC88176  Plantago major Lowell Ahart 2004-7-23 11302 Butte In a small meadow, on the west side of the road, north of the West Branch Campground, south of the Bridge across the West Branch of the Feather River, about 1 1/2 miles (air) west of Philbrook Reservoir Dam, about 3 3/4 miles (air) southeast of Butte Meadows. 1456 Comment
  CHSC38585  Plantago virginica Vernon Oswald 1983-5-2 421 Butte Upper Bidwell Park, Chico, at the Police Pistol Range. 91 Comment
  CHSC35652  Platystemon californicus R. E. Preston 1982-4-7 236 Butte Ca. 10 ft above high water mark, w branch Feather River arm of Lake Oroville, ca. 1 mi. n of Nelson Bar launch ramp, ca 4 mi sw of Paradise. 304 Comment
  POM193018  Plectritis ciliosa subsp. insignis R. M. Austin 1896-07 824 Butte [No location information provided.] Comment
  CHSC103686  Plectritis macrocera Lowell Ahart 2010-4-30 16596 Butte Below rim and above cliffs, north side of disk golf area, on a ridge about 250 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 360 Comment
  UC463030  Pleuricospora fimbriolata E. B. Copeland 1931-7-30 Butte Jonesville Comment
  CAS-BOT-BC458150  Pleuricospora fimbriolata E. B. Copeland 1920-4-2 209 Butte Jonesville 1219 Comment
  UCD90353  Poa annua A. A. Heller 1914-3-28 11243 Butte Chico. Comment
  SEINET10593496  Poa annua Isle 1969-4-18 ISLE 352 Butte About 30 yards S. of the Pentz-Magalia HW-Pentz Road intersection off the W. side of the Pentz-Magalia HW. 213 Comment
  CAS-BOT-BC255686  Poa bolanderi M. S. Taylor 1978-7-19 1777 Butte On E side of Upper Scotts John Road, ca. 2 miles N of its junction with Scotts John Road, ca. 6 miles NE of Jonesville 1828 Comment
  CHSC46980  Poa compressa Vernon H. Oswald 1989-9-27 4018 Butte Paradise Lake ca. 3 mi n of Magalia. On the edge of Little Butte Creek where it enters the lake. 775 Comment
  SEINET10655771  Poa epilis Vernon H. Oswald, Lowell Ahart 1990-7-19 Oswald 4371 Butte Slope on the south side of Philbrook Creek, ca. 3 miles east of Philbrook Reservoir, ca. 0.8 mile west of the Plumas County line. T25N R5E SW/S16. Red Fir Forest. 1966 Comment
  SEINET9349748  Poa pratensis Unknown 1931-6-22 606 Butte Butte Comment
  JEPS110191  Poa pratensis subsp. pratensis Lowell Ahart 2006-7-16 12973 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
  RSA4414  Poa pringlei E. B. Copeland 1931-6-22 s.n. Butte Jonesville 2000 Comment
  CHSC50706  Poa secunda subsp. secunda Lowell Ahart 1990-4-28 6471 Butte On the banks on the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 39 Comment
  CHSC92660  Poa secunda subsp. secunda L. P. Janeway 2005-5-29 8413 Butte Northern High Sierra Nevada. 0.2 km northwest of Concow Road at the gap between the head of Rock Creek and the Little Kimshew Creek drainage. 1478 Comment
  JEPS117704  Poa secunda subsp. secunda Lowell Ahart 2010-5-14 16676 Butte On the south side of the Guardian Trail, at the intersection of Guardian Trail and Humboldt Trail, about 1/8 mile west of Highway 32, Upper Bidwell Park, about 5 miles (air) northweat of Chico 320 Comment
  CAS-BOT-BC244153  Poa sierrae Lowell Ahart 1978-4-19 1486 Butte Along the trail to Feather Falls, about 0.5 mile from the trail head 650 Comment
  CHSC114680  Pogogyne ziziphoroides D. B. Joley 1971-4-24 Butte Chico; Morrow Lane, ca. 50 yards east of Pacific Telephone, 5 yards north of road. 61 Comment
  UCD125427  Pogogyne zizyphoroides Paula J. Minton 1980-5-14 1 Butte 1 mile east of Chico, around 100 ft on north side of the Skyway. 70 Comment
  CHSC83118  Polanisia dodecandra subsp. trachysperma Lowell Ahart 2002-9-27 9938 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
  CHSC64205  Polemonium occidentale S. C. Morey 1983-7-23 586 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. Meadow. 1414 Comment
  POM74713  Polemonium occidentale Mrs. R. M. Austin 1895-07 512 Butte Willow Creek (Devils Garden) Comment
  CAS-BOT-BC167548  Polygala cornuta var. cornuta Lowell Ahart 1988-6-15 6042 Butte North-west of the intersection of Black Bart Road and Forbestown Road, about 1 mile west of Robinson Mill Road 670 Comment
  CAS-BOT-BC167558  Polygala cornuta var. cornuta H. F. Copeland 1920-8-26 179 Butte Near Jonesville 1219 Comment
  CAS-BOT-BC109133  Polygonum bidwelliae Mary E. Wall 1942-6-26 s.n. Butte Paradise Valley. Comment
  CHSC60131  Polygonum bidwelliae B. Castro; L. P. Janeway 1992-5-9 451 Butte On SE-facing slope of unnamed canyon SE of Neal Road, on lava benches. 73 Comment
  JEPS117267  Polygonum bidwelliae Lowell Ahart 2010-5-14 16642 Butte On the bottom of the old Humboldt Road, Disc Golf Area, about 150 yards north of the entrance to the Disc Golf Area, about 40 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 395 Comment
  SBBG61484  Polygonum bidwelliae A. A. Heller 1927-5-18 14391 Butte Neale grade on rd from Chico to Paradise Comment
  UC85634  Polygonum bidwelliae Mrs. R. M. Austin 1883-1 Butte Butte County Comment
  UC398908  Polygonum bistortoides E. B. Copeland 1929-7-20 357 Butte Jonesville 1550 Comment
  CAS-BOT-BC414416  Polygonum douglasii H. F. Copeland 1920-7-24 18 Butte Meadow by Colby Creek 1828 Comment
  JEPS121919  Polygonum douglasii Lowell Ahart 2014-7-10 19631 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  CAS-BOT-BC414419  Polygonum douglasii Lowell Ahart 1988-7-31 6158 Butte On the north side of the stream that is a branch of Last Chance Creek, about 1 air mile west and a little north of Bald Mountain, about 3 1/2 air miles north-east of Stirling City 1066 Comment
  CAS-BOT-BC414420  Polygonum douglasii Lowell Ahart 1988-9-4 6182 Butte On the bank of Big Kimshew Creek. About 1 air mile north-east of Jones Meadow 1920 Comment
  UC1509659  Polygonum hydropiper L. Ahart 1982-10-11 3864 Butte large duckpond ca 1/10 mi w Graylodge Wildlife Refuge (ca 12 mi sw of Gridley) 35 Comment
  UC1562373  Polygonum hydropiper Lowell Ahart 1990-6-16 6521 Butte along creek about 1/2 mi sw Enterprise Bridge across lake (below high-water line of lake); Lake Oroville, McCabe Creek 243 Comment
  SEINET13711408  Polygonum lapathifolium Lowell William Ahart, Lowell William Ahart 1999-1 8174 Butte 12 Air Mi SW of Chico, 2 Mi SE of Ordbend, Sacramento River Comment
  CAS-BOT-BC414716  Polygonum minimum V. Oswald; L. Ahart 1988-7-13 3581 Butte Road to High Lakes e of Philbrook Reservoir 1859 Comment
  CHSC39131  Polygonum minimum R. A. Schlising; R. Banchero 1980-7-14 3904 Butte N end of county, N of Snag Lake. 1731 Comment
  RSA4447  Polygonum minimum E. B. Copeland 1931-7-18 631 Butte Jonesville, by Butte Creek 1500 Comment
  SEINET10479668  Polygonum persicaria Mary Susan Taylor 1977-10-10 Taylor 1513 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
  SEINET10479669  Polygonum persicaria Mary Susan Taylor 1975-10-3 Taylor 924 Butte At bridge over Little Chico Creek on River Road, ca. 10 mi W of Chico; Ripar ian Woodland disturbed area. 37 Comment
  SEINET10479671  Polygonum phytolaccifolium Lowell Ahart, Peter Ahart 1985-7-9 Ahart 5118 Butte 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. Comment
  RSA725032  Polygonum punctatum L. Ahart 2006-8-29 13237 Butte N of the canal and parking lot 16, W of the gravel road, Gray Lodge Wildlife area (Gray Lodge Waterflow Management area). 20 Comment
  RSA796043  Polygonum punctatum L. Ahart 2011-10-29 17724 -A Butte South side of Biggs Princeton Road, about 500 yards west of Riceton Highway, about 1 mile northwest of Biggs. 27 Comment
  CDA13261  Polygonum spergulariiforme G. F. Hrusa, T. D. Wilfred 1996-7-8 13105 Butte Sierra Nevada; Corner of Skyway Rd. and Rd. to Paradise Lake, at N boundary of Magalia. Comment
  CAS-BOT-BC420997  Polygonum spergulariiforme H. F. Copeland 1920-8-24 218 Butte Scotch John Meadow Comment
  SEINET11715827  Polypodium californicum J. D. Mott 1978-1 13 Butte West Branch Feather River 280 Comment
  CAS-BOT-BC71872  Polypodium californicum Lowell Ahart 1987-5-9 5598 Butte along Pulga Road, about 1/2 mile southwest of Bardees Bar, along the North Fork of the Feather River 365 Comment
  CHSC24893  Polypodium calirhiza T. F. Burnham 1976-4-19 19 Butte Ca. 20 ft s of Butte Creek and 0.4 ft w of Covered Bridge, 6.4 mi e of Chico. 115 Comment
  CHSC2834  Polypodium calirhiza David Prall 1965-4-16 22 Butte NW side of Humbug road 0.3 miles east of junction with Sunhill Dr. 198 Comment
  CHSC79432  Polypodium glycyrrhiza G. F. Hrusa; T. D. Wilfred 1997-5-1 13706 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']. 790 Comment
  UCD90979  Polypogon australis A. A. Heller 1914-5-19 11419 Butte 8 miles north of Oroville Comment
  CAS-BOT-BC233058  Polypogon interruptus Lowell Ahart 1977-6-2 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CDA2331  Polypogon interruptus A. A. Beetle 1941-6-27 2745 Butte Near Lomo, 13 miles west of Chester, near road to Chico Creek. 0 Comment
  CHSC90814  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
  JEPS107328  Polypogon interruptus Lowell Ahart 2005-4-14 11720 Butte Bottom of a deep drain ditch, about 200 feet east of the railroad tracks, north of Spruce Street, Gridley 28 Comment
  SEINET10507585  Polypogon maritimus Lowell Ahart, Peter Ahart 1983-6-12 Ahart 4052 Butte T20N R5E n half sec 36. Ca. 1 mi s of Crystal Hill, n of Oregon Gulch, near Lake Oroville, ca. 7 mi sw of Feather Falls. Yellow Pine Forest. Comment
  UCD91344  Polypogon monspeliensis E. M. Johnston 1915-1 W- 135 J Butte Biggs. Comment
  CHSC116275  Polystichum imbricans subsp. curtum Lowell Ahart 2015-10-24 20583 Butte On the east side of Doe Mill Road, about a 1/2 mile southeast of the bridge across Butte Creek, about 2 1/2 miles (air) noth of De Sabla Resevoir. 710 Comment
  RSA754818  Polystichum imbricans subsp. curtum L. Ahart 2009-6-30 15971 Butte E bank of Big Chico Creek, on W side of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 air miles W of Highway 32, about 10 miles NE of Chico. 234 Comment
  CHSC113580  Polystichum imbricans subsp. imbricans Lowell Ahart 2014-8-24 19722 Butte On the south side of the road, about 150 yards southwest of the Forbestown Reservoir Dam, about 4 miles (air) northeast of Forbestown. 577 Comment
  JEPS124288  Polystichum imbricans subsp. imbricans Lowell Ahart 2015-10-23 20581 Butte About 400 yards southwest of the Forbestown Reservoir Dam, about 4 miles (air) northeast of Forbestown. Comment
  UC474222  Polystichum scopulinum H. F. Copeland 1920-8-24 423 Butte near the Summit Jonesville 2200 Comment
  CHSC61216  Populus alba Lowell Ahart 1993-4-5 6926 Butte On the east side of upper Palermo Road, about 2 miles north-east of Palermo. 121 Comment
  CHSC13715  Populus fremontii M. S. Taylor 1974-10-11 326 Butte Ca. 50 ft e of Sacramento River, ca. 1/4 mi n of washout, ca. 10 mi w of Chico. Comment
  SEINET10460761  Porterella carnosula Edwin B. Copel 1929-7-29 Copeland 397 Butte Above Jonesville 1750 Comment
  CAS-BOT-BC452107  Potamogeton crispus M. S. Taylor 1979-10-2 2216 Butte On e bank of Sacramento River at Chico Landing, ca. 5 mi w of Chico. 30 Comment
  CHSC55813  Potamogeton diversifolius Vernon H. Oswald; Lowell Ahart 1991-8-28 4856 Butte Impoundment just south of the Clay Pit Area of the Oroville Wildlife Area, on the east side of Larkin Rd, ca. 2 miles south of Hwy 162, Thermalito. In a pond. 39 Comment
  JEPS95967  Potamogeton diversifolius Lowell Ahart 1999-6-12 8089 Butte on the west side of the dam; large reservoir north of Beatson Hollow; North Table Mountain; about 2 1/2 miles (air) west of the entrance gates along the west side of Cherokee Road; about 7 miles (air) north of Oroville. Common 295 Comment
  CHSC50709  Potamogeton foliosus Lowell Ahart 1990-7-1 6533 Butte In a ditch on the east side of the road, at the Forbestown Generator, on the east side of the Forbestown Reservoir. 487 Comment
  UC1099872  Potamogeton foliosus Herbert L. Mason, Verne Grant 1945-7-10 12638 Butte Sandford Slough, sw corner of Butte County Sandford Slough Comment
  JEPS120837  Potamogeton foliosus subsp. foliosus Lowell Ahart 2013-7-6 18823 Butte Peter Ahart Ranch, about 1.75 miles north and 1.5 miles east of Honcut, about 12 air miles southeast of Oroville. Comment
  UCD138255  Potamogeton nodosus H. L. Mason; Verne Grant 1945-7-10 12640 Butte Stanford Slough, Butte Sink, southwest corner of county. Comment
  CDA13900  Potentilla glandulosa subsp. glandulosa G. F. Hrusa, T. D. Wilfred 1997-5-8 13757 Butte Sierra Nevada; Little Butte Creek, N of Magalia, above Magalia Res. Immed. E of Holmwood Drive. Comment
  CHSC45583  Potentilla glandulosa subsp. glandulosa L. P. Janeway 1987-5-10 2041 Butte Near PG and E ditch ca 3/4 mi north of DaSAbla Res. at crossing of rd to Forks of Butte (Doe Mill Rd). 853 Comment
  CHSC90472  Potentilla glandulosa subsp. glandulosa Lowell Ahart; Paul Maslin, John Dittes 2005-3-17 11624 Butte Big Chico Creek Ecological Reserve. On the cliff edge of the floor of the Indian Cave, about 100 yards north of the very poor dirt road, about 1/2 mile west of Big Chico Creek, about 4 1/2 miles (air) northeast of Chico. 430 Comment
  SD2236  Potentilla gracilis var. fastigiata E. B. Copeland 1929-7-24 372 Butte Jonesville 1550 Comment
  UCD122082  Proboscidea lutea A. A. Heller 1914-8-29 11685 Butte Hills 8 miles north of Oroville. Comment
  JEPS110470  Prosopis glandulosa var. torreyana Lowell Ahart, Mike G. Womack 2006-8-29 13240 Butte Near pump 24, about 1/4 mile southwest of Parking Lot 9, about 1 1/2 miles east of Pennington Road, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area) 21 Comment
  UCSC000640  Prunella vulgaris subsp. lanceolata Kate Conger 1907-1 s.n. Butte Brush Creek Comment
  CHSC2416  Prunella vulgaris var. lanceolata R. Carter 1965-6-20 243 Butte Found 4 mi. E of intersection of Lumpkin Rd. and Forbestown Rd. on Forbestown Rd. growing in moist meadow 25' N of road; ca. 14 mi. E of Oroville. 609 Comment
  CHSC43831  Prunella vulgaris var. lanceolata L. P. Janeway 1987-6-26 2316 Butte SW end of Logue Meadows. 1325 Comment
  CHSC52061  Prunella vulgaris var. lanceolata B. Castro; L. P. Janeway, R. A. Schlising 1988-7-30 284 Butte By side of road on sw-facing slope above Coon Hollow. 1859 Comment
  SEINET10838463  Prunus avium Mary Susan Taylor 1980-4-27 Taylor 2558 Butte T23N R3E nw sec 27. Paradise quad. Along Middle Butte Creek off of Little Butte Creek in Riparian Woodland, very shady, ca. 1.5 mi SE of Nimshew. With J.D. Jokerst. 610 Comment
  CHSC110115  Prunus cerasifera L. P. Janeway 2012-3-21 10816 Butte Sacramento Valley. City of Chico; Lower Bidwell Park, north side Big Chico Creek between creek and Vallombrosa Ave near Crister Ave. 62 Comment
  CHSC70838  Prunus cerasifera Vernon Oswald 1998-4-12 8902 Butte Upper Bidwell Park (new addition), Pine Trail between the trailhead on Hwy. 32 opposite Santos Rd. (between Chico and Forest Ranch) and South Rim Trail. 441 Comment
  CAS-BOT-BC356393  Pseudognaphalium beneolens Lowell Ahart 1983-9-17 4435 Butte Below the dirt road and about 2 1/2 miles south of Stirling City 1100 Comment
  CHSC26751  Pseudognaphalium luteoalbum M. S. Taylor; M. Hayes 1977-8-16 1448 Butte In flower bed near maintenance buildings, Butte College Campus, ca. 15 mi s of Chico. 60 Comment
  JEPS108883  Pseudognaphalium luteoalbum Lowell Ahart 2005-12-11 12511 Butte On the sides of small ditches, on the Rice Experiment Station, between the Main Ditch and Stine Lateral, on the north side of Hamilton Road, about 1/4 mile east of Riceton Highway, about 2 1/4 miles (air) east of Biggs 30 Comment
  CHSC30026  Pseudognaphalium stramineum L. Ahart 1980-5-4 2184 Butte Pasture, southwest of the intersection of Nelson Ave and 20th, Thermalito. 65 Comment
  CHSC39276  Pseudognaphalium stramineum Lowell Ahart 1983-7-29 4226 Butte Slide area along the dirt road, about 1/4 mile west of Milsap Bar. about 25 miles north-east of Oroville. 500 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
  CHSC52014  Pseudostellaria jamesiana L. P. Janeway 1988-6-25 2864 Butte Near Coon Cr and Near Bull Hill Rd 1.0 mi from the Skyway. 1554 Comment
  CAS-BOT-BC361742  Psilocarphus brevissimus var. brevissimus Lowell Ahart 1979-5-11 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  CHSC103718  Psilocarphus brevissimus var. brevissimus Lowell Ahart 2010-5-14 16649 Butte On the west side of the old Humboldt Road, Disc Golf Area, about 150 yards west of the entrance to the Disc Golf Area, about 40 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 395 Comment
  CHSC11830  Psilocarphus oregonus E. B. Copeland 1931-7-20 698 Butte Jonesville, near Butte Creek House. 1700 Comment
  POM36283  Psilocarphus oregonus C. C. Bruce 1897-06 2113 Butte Chico Comment
  CAS-BOT-BC361918  Psilocarphus tenellus Lowell Ahart 1979-5-11 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  UC1602323  Ptelea crenulata J. E. Sowder 1933-7-7 110 Butte Camel Mound; Chico Quad. 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
  CHSC12130  Pteridium aquilinum var. pubescens J. M. Pitts 1972-4-16 122 Butte 6.1 mi ne past Honeyrun Bridge on Humbug Rd. 335 Comment
  CHSC44618  Pteridium aquilinum var. pubescens Vernon Oswald 1983-7-26 915 Butte Calif. Hwy 32, 11.8 mi n-e of Forest Ranch. 1158 Comment
  CHSC61646  Pterospora andromedea Lowell Ahart 1993-9-8 7162 Butte On the north side of the ridge, about 1 mile east of Snow Mountain. 2072 Comment
  CHSC90241  Pterostegia drymarioides Michael J. McNairn 1989-4-22 17 Butte At the base of rocks along Yahi trail above Salmon Hole. Bidwell Park. Ca. 3 mi. e of 5-mile swimming area, ne Chico. 106 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
  CDA34560  Pyracantha koidzumii L. Ahart, John Dittes, Josephine Guardino 2008-11-8 15422 Butte South of the trail on the south side of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CHSC20527  Pyracantha koidzumii Pamela Caldwell 1971-10-8 Butte CSUC campus. Bordering front lawn of Administration Bldg. Comment
  CHSC46586  Pyrola asarifolia subsp. asarifolia V. Oswald; L. Ahart 1989-7-21 3880 Butte Meadow paralleling Humbud Rd, just ne of the West Branch of the Feather River, ca. 0.5 mi ne of Snag Lake, ca. 2.5 mi (air) se of Jonesville. 1780 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
  SBBG28968  Pyrola picta E. B. Copeland 1930-7-29 Butte Jonesville 1600 Comment
  UC876268  Pyrola picta A. A. Heller 1914-7-23 11597 Butte in (burnt over) tracts about Chico meadows Chico; Chico meadows 1219 Comment
  CAS-BOT-BC466306  Pyrola picta A. A. Heller 1914-7-23 11597 Butte About Chico meadows 1219 Comment
  CHSC110118  Pyrus calleryana L. P. Janeway 2012-5-2 10819 Butte Sacramento Valley. City of Chico; semi-natural riparian strip be-tween Big Chico Creek and Vallombrosa Way just southwest of One Mile Recreation Area; northwest side of the creek. 62 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
  SEINET13953128 Image available Quercus berberidifolia T. A. Ranker, P. G. Trapp 1994-1 1619 Butte Pence Road, south of Paradise, T21N, R4E, S6 ca 1,300 ft (395m). 396 Comment
  CHSC109218  Quercus durata B. Castro; L. P. Janeway 2004-6-13 1467 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
  SEINET10477878  Quercus durata Lowell Ahart 1985-6-30 Ahart 5093 Butte About 2 1/2 miles north-east of Forbestown. Alt. 2850 ft. 868 Comment
  SEINET10477879  Quercus durata Mary Susan Taylor, L. Hanson 1981-4-2 Taylor 3479 Butte T23N R4W east center sec 30; Paradise quad; open serpentine ridge nnw of Sawmill Peak, off Jordan Hill Rd/ Ponderosa Way, ca. 1 air mi ne of Magalia; serpentine outcrop; 2300 ft. 701 Comment
  UCD45957  Quercus durata var. durata Clarence R. Quick 1961-9-21 61 38 Butte West Branch of N. Fork of Feather River, Butte Co. Comment
  JEPS38008  Quercus garryana var. breweri A. E. Wieslander 1927-6-29 Butte Humboldt road from Chico (Fourteen-mile House) Comment
  UCD169286  Quercus garryana var. breweri L. P. Janeway; B. Castro 2007-5-6 8976 Butte Slopes above the east side of West Branch Feather River; along Jordan Hill Road 1 road km north-northeast of the bridge crossing; 1.9 air km north-northwest of Sawmill Peak. 555 Comment
  UCD46647  Quercus kelloggii C. G. Albertus; J. E. Sowder 1935-7-14 114 Butte 1/2 mile west of 14 Mile House. 335 Comment
  CAS-BOT-BC61583  Quercus lobata Lowell Ahart 1979-5-12 s.n. Butte near banks of Honcut Creek 50 Comment
  JEPS38059  Quercus lobata H. A. Dutton 1921-8-21 Butte Chico Comment
  SEINET10477291  Quercus lobata Mary Susan Taylor 1975-5-6 Taylor 558 Butte Campus of California State University Chico, along creek between bridge between Holt Hall and Butte Hall, and bridge between Holt Hall and Chemistry Bldg; Riparian Woodland. 61 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
  UCD47414  Quercus vacciniifolia Leonard H. Day 1948-7-11 s.n. Butte Lava Top, in Butte County, ca. 1 mile south of Cascade (Plumas County), California. 1435 Comment
  CDA19813  Quercus wislizeni var. wislizeni P. Akers 2002-5-5 s.n. Butte Northern California; Road to Table Mtn from Oroville. 293 Comment
  SEINET12094427  Ranunculus alismifolius Unknown 1983-1 353 Butte E. of Philbrook Reservoir at county line, T25N, R5E, sec. 16, Jonesville 15' quad 1975 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
  CHSC113211  Ranunculus aquatilis var. aquatilis Lowell Ahart 2014-4-16 19370 Butte On the sides but near the bottom of a large canal, about 100 yards north of East Gridley Road, on the west side of the Feather River, about 2 miles east of Gridley. 29 Comment
  CHSC84471  Ranunculus aquatilis var. aquatilis Vernon Oswald 1983-4-9 315 Butte Upper Bidwell Park, Chico, 50 ft n of Upper Park Rd. in the ditch draining Horseshoe Lake. 91 Comment
  POM196104  Ranunculus aquatilis var. capillaceus E. B. Copeland 1929-7-28 360 Butte Jonesville. 1500 Comment
  CHSC46842  Ranunculus aquatilis var. hispidulus L. V. Ritter 1969-5-5 259 Butte E shoe of Horseshoe Lake, Bidwell Park. Comment
  CHSC52121  Ranunculus arvensis John Lowrie 1979-4-26 Butte S. of the Skyway, 4 mi w. of Paradise. Comment
  JEPS103494  Ranunculus bonariensis var. trisepalus Lowell Ahart 2002-4-24 9529 Butte Vernal pools and swales, in a field, on the E side of Lone Tree Road, ca 1 1/8 miles N of Cox Lane, ca 3 miles (air) SW of Palermo, ca 7 miles (air) S of Oroville. 35 Comment
  CHSC52788  Ranunculus canus J. D. Jokerst; M. S. Taylor 1980-2-24 452 Butte Along hillsides at base of rimrock ca 0.5 mi E of Richardson Springs. 243 Comment
  CHSC61609  Ranunculus canus A. A. Heller 1926-3-31 13916 Butte At Nelson, 14 miles south of Chico. Comment
  UC118186  Ranunculus canus Mrs. R. M. Austin April 1896 Butte e Chico Comment
  UC176136  Ranunculus canus var. canus A. A. Heller 1913-4-7 10727 Butte Hills six miles north of Oroville Comment
  CHSC52792  Ranunculus flammula var. ovalis R. Preston; J. Fuller, R. A. Schlising 1981-7-21 4158 Butte Ne part of county, N of Snow Mountain ridge. In shoreline of small lake. 1950 Comment
  CHSC101333  Ranunculus hebecarpus Lowell Ahart 2009-4-22 15592 Butte Along the 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
  CHSC53700  Ranunculus hebecarpus Kirsten Tarp 1982-4-8 111 Butte Near Oroville Dam. Comment
  CHSC1487  Ranunculus muricatus R. Morford 1941-4-21 Butte Butte Creek. 121 Comment
  UC204954  Ranunculus muricatus A. A. Heller 1914-4-17 11306 Butte 8 mi n Oroville Comment
  UC827722  Ranunculus occidentalis A. A. Heller 1938-4-23 15054 Butte 20 mi from Oroville (Feather River Hwy at summit) Comment
  CHSC13496  Ranunculus occidentalis var. occidentalis P. Fehr 1974-4-17 9 Butte Creek bed ca. 15 yards from w side of Cherokee Rd. .5 miles s of Cherokee. 391 Comment
  CHSC39325  Ranunculus occidentalis var. occidentalis Lowell Ahart 1983-6-26 4155 Butte Found along Ponderosa Way, about 2 miles east of where Ponderosa Way crosses the East Fork of Canyon Creek, about 15 miles north-east of Oroville. Note: the sign gives Big Ridge Road instead of Ponderosa Way. 600 Comment
  CHSC11809  Ranunculus occidentalis var. ultramontanus E. B. Copeland 1930-6-26 642 Butte Jonesville. In meadows. 1550 Comment
  CHSC38424  Raphanus raphanistrum Vernon Oswald 1982-12-28 37 Butte Upper Bidwell Park, Chico, at the w end of Horseshoe Lake near Parking Area C. 97 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
  CHSC44156  Ratibida columnifera Vernon Oswald 1988-7-22 3611 Butte Harter's Cherokee Ranch located on the w side of Hwy 99 between Hwy 149 and Dry Creek. Along the edge of the ranch road where it parallels Hwy 99. 56 Comment
  SEINET13946269 Image available Rhamnus californica Lewis S. Rose 1955-1 55097 Butte Magalia; 2400 ft alt. 732 Comment
  SEINET10493592  Rhamnus californica subsp. tomentella Mary Susan Taylor 1981-7-10 Taylor 4066 Butte T22N R5E ne sec 6, Pulga quad. N side of Feather River Hwy 70 at Pulga bridge, on large serpentine outcrop, ca. 20 mi NE of Oroville. 1600 ft elev. 488 Comment
  CAS-BOT-BC59884  Rhamnus ilicifolia A. A. Heller 1915-4-20 11847 Butte 2 mi. below Centerville in the Sierra Foothills. Comment
  CAS-BOT-BC59885  Rhamnus ilicifolia A. A. Heller 1939-5-10 15375 Butte On the Cohasset grade above Rock Creek. Comment
  CHSC29815  Rhamnus ilicifolia M. S. Taylor; J. D. Jokerst 1979-10-13 2259 Butte On Jordan Hill Rd, ca. 4.8 mi n of its jct with Concow Rd, ca. 2 mi e of Paradise. 609 Comment
  UC1121842  Rhamnus ilicifolia J. E. Sowder 1933-11-27 132 Butte near Hog Spring; Chico Quad. 243 Comment
  JEPS88908  Rhamnus rubra Lowell Ahart 1994-6-5 7309 Butte about 3.5 mi sw Forbestown (s of the intersection of Black Bart Road and Forbestown Road) 609 Comment
  CHSC1525  Rhamnus tomentella subsp. tomentella A. Goekler 1928-5-25 Butte Bidwell Park. 60 Comment
  CHSC92743  Rhamnus tomentella subsp. tomentella L. P. Janeway 2005-6-26 8433 Butte Northern High Sierra Nevada. South-facing slope 0.4 km south of top of Batchelor Point, 0.6 km east of top of Rocky Ridge and Rim Road (Ponderosa Way). 945 Comment
  CHSC27208  Rhaphiolepis rubra P. Moyer 1972-4-4 155 Butte CSUC Campus. NE corner of library. 60 Comment
  CAS-BOT-BC199744  Rhododendron occidentale var. californicum A. A. Heller 1913-6-7 10800 Butte Near Stirling 1074 Comment
  CHSC44064  Rhynchospora californica L. P. Janeway 1988-5-30 2717 Butte Cyn of Big Chico Cr; upper Bidwell Park, 2.8 mi along Upper Park Rd from Wildwood Ave and ca 1/4 mi NW up the slope; also ca 1/2 mi NE of the power lines. 152 Comment
  SD2126  Ribes californicum E. B. Copeland 1931-7-31 Butte Woods near Butte Creek Comment
Read comments
Jul 22 2018
  UC600615  Ribes inerme var. inerme H. F. Copeland 1930-7-25 Butte Jonesville, meadow below cabin Jonesville Comment
  CAS-BOT-BC212674  Ribes nevadense Clarence R. Quick 1952-6-29 5293 Butte Near spring, 0.3 mile W of Coyote Gap on Mill Creek Road Comment
  LA205548  Ribes nevadense E. B. Copeland; 1931-7-31 647 Butte Jonesville 1550.0 Comment
  SBBG83400  Ribes nevadense D. Neubacher 1976-5-25 23 Butte Rag Dump Rd, 14 mi SE of Stirling City 1280 Comment
Read comments
Jan 13 2018
  RSA0022849  Ribes nevadense E. B. Copeland 1931-7-31 647 Butte Jonesville, near Butte Creek. 1550 Comment
  CDA13286  Ribes roezlii G. F. Hrusa, T. D. Wilfred 1996-7-9 13134 Butte Plumas National Forest; E side above Jordan Creek headwaters S of Hwy 162 near Roger's Cow Camp. Comment
  SBBG17303  Ribes roezlii M. Vincent 1962-4-15 183 Butte 1 mi S of Stirling City on the Skyway Comment
  UC857965  Ribes roezlii A. A. Heller 1915-6-26 11031 Butte Summit of Sierra Nevada above Jonesville; Sierra Nevada 2133 Comment
  CAS-BOT-BC198957  Ribes roezlii var. roezlii H. F. Copeland 1929-6-11 1237 Butte Jonesville 1524 Comment
  CHSC109111  Ribes roezlii var. roezlii Lowell Ahart 2012-2-22 17753 Butte On the south side of Ten Mile House road, about 1/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. 387 Comment
  CHSC76413  Rorippa curvisiliqua var. occidentalis Lowell Ahart 1999-10-28 8298 Butte On the bottom of a wash, just southeast of the small pond where you can park, along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  JEPS121305  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2013-11-29 19291 Butte Below the high water line of Lake Oroville, about 250 yards W of the old road, about 3.5 air miles NE of Oroville Dam. Comment
  SEINET10940298  Rorippa curvisiliqua var. occidentalis Lowell Ahart 1985-4-20 Ahart 4877 Butte On the floor of a rice field, Peter Ahart Ranch, about 2 miles north and 1/8 mile east of Honcut, about 12 miles south of Oroville. 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
  CHSC82213  Rorippa palustris var. occidentalis Lowell Ahart 2002-4-15 9491 Butte On the east side of a canal bank, on the west side of Faris Road, 3 miles west of West Biggs Gridley Road, about 3 miles (air) southwest of Biggs. 24 Comment
  CHSC43212  Rosa bridgesii L. P. Janeway 1987-6-19 2240 Butte Side ravine south from Sly Cr; 1.6 mi from the Challenge-LaPorte Rd along the road to the SE side of Sly Cr Reservoir. 1097 Comment
  CHSC65429  Rosa bridgesii Vernon Oswald 1984-5-28 1211 Butte Cohasset Rd., 1.3 mi n of the end of the pavement. 1005 Comment
  CDA42871  Rosa californica L. Ahart 2012-5-14 18059 Butte Just west of Table 16, south of Big Chico Creek, on the north side of the paved path. Lower Bidwell Park. Comment
  POM89739  Rosa californica C. C. Bruce 1897-05 1800 Butte Fourteen mile house Comment
  CHSC102517  Rosa pisocarpa Lowell Ahart 2009-5-30 15800 Butte South of a small stream, meadow, about 30 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 209 Comment
  CHSC29764  Rosa pisocarpa subsp. ahartii M. S. Taylor 1980-5-24 2747 Butte Peter Ahart Ranch, along Rocky Honcut Creek, Honcut. 50 Comment
  JEPS107939  Rosa pisocarpa subsp. ahartii Lowell Ahart 2005-7-13 12144 Butte Ditch, about 20 yards south of the intersection of Forbestown Road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown, about 12 miles (air) east of Oroville 748 Comment
  UC1862495  Rosa pisocarpa subsp. ahartii Barbara Ertter with Lowell Ahart 2006-8-1 18750 b Butte Black Bart Road 1.3 mi from lower junction with Forbestown Road, ca 10 airmiles ESE of Oroville 655 Comment
  CHSC31887  Rotala ramosior L. Ahart 1975-7-5 850 Butte Peter Ahart Ranch, Honcut. Along the edge of North Honcut Creek on mud. 45 Comment
  CDA37503  Rotala ramosior G. D. Barbe, J. McCaskill 1990-9-5 4369 Butte Experimental fields of the Rice Experiment Station, West Hamilton Road at Riceton Highway, north of Biggs. 0 Comment
  CHSC35970  Rubus armeniacus M. S. Taylor 1982-5-23 4516 Butte N side of Hwy 70, vicinity of Arch Rock Tunnel, ca. 0.5 mi sw of Butte-Plumas county line. 487 Comment
  CHSC45822  Rubus armeniacus L. P. Janeway 1987-6-5 2150 Butte Along Peavine Cr near mouth of Coon Cr and where the Peavine Cr rd crosses. 746 Comment
  SEINET10483860  Rubus armeniacus Lowell Ahart, Peter Ahart 1984-6-10 Ahart 4716 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown; Yellow Pine Forest; 700 m. 700 Comment
  JEPS115598  Rubus discolor Lowell Ahart 2009-5-23 15771 Butte On the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 203 Comment
  CHSC89467  Rubus laciniatus R. D. Fischer 2004-7-18 446 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located at bottom of 10 Mile House Road near end of park property. At creek edge. 207 Comment
  POM366455  Rubus laciniatus L. Ahart, P. Ahart 1984-6-10 4696 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown. 700 Comment
  SEINET10483593  Rubus parviflorus Mary Susan Taylor 1976-5-5 Taylor 1112 Butte Abundant along creek, ca. 5 ft S of Hwy 70, ca. 20 mi NE of Oroville; granitic soils. Comment
  CHSC51370  Rubus pensilvanicus Vernon Oswald 1990-8-28 4444 Butte Chico Meadows, ca. 1 mile north of Butte Meadows. Northeast of the 'swimming hole' at the Boy Scout Camp. 1292 Comment
  CHSC52128  Rubus ursinus L. P. Janeway 1988-5-19 2668 Butte West Branch Mud Cr at Vilas Rd crossing, just E of Cohasset. At edge of rd. 746 Comment
  POM91605  Rubus vitifolius C. C. Bruce 1898-05 1793 Butte One valley, two mountains. Comment
Read comments
Mar 5 2011
  CHSC45768  Rudbeckia hirta var. pulcherrima Vernon Oswald 1985-7-30 1913 Butte Oroville-Quincy Hwy 8.0 mi nne of Brush Creek at Merrimac site. In meadow at the head of Peavine Creek. 1219 Comment
  CHSC75394  Rumex acetosella Lowell Ahart 1999-6-12 8090 Butte West of the south part of the dam, large reservoir north of Beatson Hollow, North Table Mountain, about 2 1/2 miles (air) west of the entrance gates along the west side of Cherokee Road, about 7 miles (air) north of Oroville. 295 Comment
  UCD170307  Rumex acetosella L. Ahart 1982-5-28 3443 Butte Under a Digger Pine and near a small wash, E of North Honcut Creek, ca. 3 mi NE of Honcut. 50 Comment
  CHSC1356  Rumex crispus H. Goodyear 1939-5-29 Butte Near Chico. 57 Comment
  CHSC51008  Rumex fueginus Lowell Ahart 1990-8-15 6588 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. 228 Comment
  CHSC99487  Rumex salicifolius var. salicifolius Lowell Ahart 2008-6-13 14832 Butte Bottom of Oregon Gulch, about 50 yards west of the road culvert across Oregon Gulch, bottom of an old gold mined area, about 150 yards south of the cemetery, about 10 miles (air) northeast of Oroville. 305 Comment
  UC600492  Rumex salicifolius var. triangulivalvis H. F. Copeland 1932-8-17 Butte Butte Creek Jonesville 1500 Comment
  CHSC26723  Sagina apetala M. S. Taylor; M. Hayes 1978-4-14 1563 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
  JEPS122065  Sagina decumbens subsp. occidentalis Lowell Ahart 2014-5-21 19530 Butte South bank of river, where Sucker Creek flows into the South Fork of the Feather River, below the high water line of Lake Oroville, about 1/4 mile west of the Ponderosa Dam. Comment
  RSA0118700  Sagina decumbens subsp. occidentalis Lowell A. Ahart 2014-4-26 19410 Butte On the south side of Butte City Highway (Highway 162), collected from the railroad to the east about 200 yards, east of the Rice Experiment Station. 31 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
  SEINET10905440  Sagittaria montevidensis subsp. calycina Mary Susan Taylor 1978-7-22 Taylor 1852 A Butte On SE corner of Richvale East Road and Erickson Road, Richvale; in rice field. 30 Comment
  POM219139  Salix eastwoodiae H. F. Copeland 1931-6-11 1544 Butte Jonesville. Kirby Meadows. 1829 Comment
  POM219140  Salix geyeriana var. argentea H. F. Copeland 1931-6-11 1545 Butte Jonesville. Kirby Meadows. 1829 Comment
  CHSC38666  Salix gooddingii Vernon Oswald 1983-5-4 432 Butte Upper Bidwell Park, Chico, along the top of the s dike of Horseshoe Lake. 100 Comment
  JEPS119845  Salix gooddingii Lowell Ahart 2012-3-23 17794 Butte Spring like area at the old homestead, about 30 yards southeast of intersection of South Rim Trail and Ten Mile House Road, about 5/8 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  UC203649  Salix gooddingii A. A. Heller 1914-4-6 11262 Butte 12 mi from Chico (on Chico-Oroville rd; banks of Dry Creek); Sacramento Valley, Dry Creek Comment
  CHSC65018  Salix jepsonii V. Oswald; L. Ahart 1988-10-6 3708 Butte Last Chance Creek where it crosses the road between Inskip and Jones Meadow. 1560 Comment
  CHSC38669  Salix laevigata Vernon Oswald 1983-3-31 236 Butte Upper Bidwell Park, Chico, 300 ft s of Upper Park Rd. ca. 1200 ft e of Parking Area N at Salmon Hole (1.4 mi e of the power lines). 176 Comment
  CHSC57510  Salix lasiolepis Rebecca L. Hill 1990-4-7 8 Butte E side of the East Branch of Clear Creek, ca. 0.3 mi ne of Clear Creek Cemetary rd., ca. 6 mi s of Paradise off of Clark Rd. 121 Comment
  CHSC9696  Salix lasiolepis var. sandbergii E. L. Smith 1971-9-12 1068 Butte On Big Chico Creek at Bidwell Park in Chico. Comment
  CAS-BOT-BC124572  Salix lemmonii E. B. Copeland 1931-8-1 620 Butte Jonesville, about the Lily Pond 1700 Comment
  UC446424  Salix ligulifolia E. B. Copeland 1931-6-20 Butte beside Butte Creek Jonesville; , Butte Creek 1500 Comment
  UC446429  Salix ligulifolia E. B. Copeland 1931-6-10 Butte below <Copeland> house between Copeland meadows Jonesville (above lower meadow) 1500 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
  CHSC94971  Salix melanopsis Lowell Ahart 2006-10-14 13507 Butte On the north side of North Honcut Creek, Peter Ahart Ranch, about 3/4 mile north and 2 1/2 miles east of Honcut, about 12 miles southeast of Oroville. 44 Comment
  UC446420  Salix scouleriana E. B. Copeland 1931-6-10 Butte in pockets on ridge Jonesville 1600 Comment
  UC176385  Salix sitchensis A. A. Heller 1913-6-7 10832 Butte w. branch N. Fork Reather R. near Stirling; w. branch N. Fork Reather R. 914 Comment
Read comments
Jul 5 2010
  CHSC110041  Salsola tragus Lowell Ahart 2012-10-28 18517 Butte East edge of Highway 70, about 1/4 mile south of Cottonwood Road, about 3 miles north of Oroville. 90 Comment
  JEPS120012  Salsola tragus Lowell Ahart 2012-10-28 18517 Butte East edge of Highway 70, about 1/4 mile south of Cottonwood Road, about 3 miles north of Oroville. Comment
  CHSC20129  Salvia columbariae D. Joley 1968-8-5 73 Butte Found growing on Centerville Rd. Comment
  CAS-BOT-BC221111  Salvia sonomensis Mrs. C. C. Bruce 1898-5-1 1983 Butte Forest ranch Comment
  CHSC65569  Salvia sonomensis R. Banchero 1980-4-27 139 Butte Ca 6.1 mi NE of jcn of Keefer Rd and Cohasset Rd, ca 1.4 mi E of Cohasset Hwy. 609 Comment
  UC1124851  Salvia sonomensis H. A. Jensen 1934-10-26 390 Butte Cohasset Ridge (Keefer Ridge on map); Chico Quad. 548 Comment
  SEINET10869907  Salvia sonomensis Mary Susan Taylor 1975-4-25 Taylor 493 Butte Ca. 1/4 to 1/2 mi E of Cohasset Hwy, along dirt rd leading up onto ridge, ca. 10 mi NE of Chico. Soil wet red clay. Mixed Chaparral. Comment
  RSA4458  Sambucus caerulea E. B. Copeland 1931-7-29 691 Butte Jonesville. 1550 Comment
  CHSC11858  Sambucus racemosa E. B. Copeland 1930-7-12 480 Butte Above Jonesville. Along north brow of high ridge. 640 Comment
  JEPS98675  Sanguisorba annua Lowell Ahart 2000-6-29 8544 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
  JEPS115606  Sanguisorba minor subsp. muricata Lowell Ahart 2009-5-23 15732 Butte On the east side of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 236 Comment
  CHSC2821  Sanicula bipinnata David Prall 1965-3-14 6 Butte Ca. 10 yds. from edge of cliff ca. 30 yds. from Neal Rd., 1 mile east of HW 99E. Comment
  SEINET10454565  Sanicula bipinnata Mary Susan Taylor 1975-4-26 Taylor 512 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
  UC726870  Sanicula bipinnatifida A. A. Heller 1918-5-5 13015 Butte Paradise Comment
  UC875445  Sanicula bipinnatifida Lewis S. Rose 1937-6-10 37367 Butte Forbestown 838 Comment
  UCD127926  Sanicula bipinnatifida L. Ahart 1978-4-13 1633 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC115282  Sanicula bipinnatifida var. flava Lowell Ahart 2015-4-30 20118 Butte About 1/4 miles south of Forbestown Reservoir Road, about 2 1/2 miles (air) northeast of Forbestown. 890 Comment
  CHSC24934  Sanicula bipinnatifida var. flava Brad R. Parker 1976-4-21 1 Butte Ca. 1.7 mi ne of Oroville and Glen Drive on the ne side of Glen Circle Drive, after passing 19 Glen Circle Drive. 114 Comment
  CHSC99550  Sanicula bipinnatifida var. flava L. P. Janeway 2008-5-26 9371 Butte Northern High Sierra Nevada. Steep northeast-facing slope high above West Branch Feather River about 1.9 air km northeast of Magalia; along Jordan Hill Road (old Ponderosa Way) 1.9 road km northeast of the bridge over West Branch Feather River. 666 Comment
  UCD127972  Sanicula crassicaulis Joseph M. DiTomaso 1976-5-23 473 Butte Lake Oroville, peninsula at south end. 274 Comment
  CHSC58874  Sanicula graveolens Lowell Ahart 1992-7-29 6886 Butte About 1 mile north-east of the Carr Mine, about 3/4 mile north-west of Lotts Lake. 1798 Comment
  CHSC42671  Sanicula tuberosa Vernon Oswald 1985-1-24 1680 Butte Upper Bidwell Park, Chico, on the north rim just e of the head of the west intermittent stream flowing into Sycamore Creek. 304 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
  CHSC100974  Scandix pecten-veneris L. P. Janeway 2008-3-18 9234 Butte Cascade Range Foothills. East edge of City of Chico; south side of Humboldt Road 1.3 km northeast of Bruce Road. 123 Comment
  CHSC32376  Scandix pecten-veneris J. D. Jokerst 1979-5-2 1223 Butte Table Mountain. Top of North Table Mt at the E edge along sides of Cherokee Rd. 396 Comment
  CHSC39231  Scandix pecten-veneris M. S. Taylor; K. Tharp 1983-3-11 5225 Butte At jct of Bell Ranch Rd and Oroville-Quincy Hwy (162), ca. 1 mi sw of Berry Canyon School, s of Lake Madrone. Ca. 8 air mi ne of Oroville. Comment
  CHSC65191  Scandix pecten-veneris Lowell Ahart 1995-5-30 7586 Butte Along the edge of Beatson Hollow Creek, about 1 mile north-west of Cherokee Road, North Table Mountain, about 7 miles north of Oroville. 304 Comment
  CHSC34149  Sceptridium multifidum L. Ahart 1981-9-21 3197 Butte Along French Creek, ca. 100 m w of the swamp and where the road crosses the creek, ca. 1 mi s of Sly Creek Reservoir. 1300 Comment
  CHSC28556  Schoenoplectus mucronatus M. S. Taylor 1978-7-21 1848 Butte On se corner of Richvale East Rd and Erickson Rd, Richvale. 30 Comment
  CAS-BOT-BC111654  Schoenoplectus mucronatus Bellue 1947-7-23 s.n. Butte By 730 Princeton. 1 mi So-1 mi W Butte City 4 corners. Comment
  JEPS118065  Scirpus acutus var. occidentalis Lowell Ahart 2011-8-17 17632 Butte On the west edge of the pond, on the east side of the trail and dam, at the old homestead, about 100 yards south of Ten Mile House Road, about 5/8 mile (air) west of Highway 32, about 9 miles (air) northeast of Chico 249 Comment
  SEINET13711019  Scirpus cernuus Lowell William Ahart, Lowell William Ahart 2000-1 8390 Butte 12 Air Mi. SSE of Oroville (T17N, R4E, sec 11, SE 1/4) 130 Ft. 40 Comment
  CHSC45137  Scirpus congdonii Vernon Oswald; Lowell Ahart 1987-7-1 3083 Butte Cluster of 3 snow lakes ca. 3 mi (air) s of Humbug Summit, 0.5 mi w of the Butte-Plumas county line, ca. 5.5 mi (air) se of Jonesville. At the e end of the large lake. 1935 Comment
  JEPS98280  Scirpus diffusus Lowell Ahart 2000-6-29 8547 Butte By the road culvert, on the northwest side of Flea Meadow, about 1/2 mile west of Flea Mountain, about 3 1/2 miles (air) north of Concow Reservoir, about 5 miles (air) east of Magalia. 1036 Comment
  RSA4222  Scirpus diffusus E. B. Copeland 1929-7-19 343 Butte Jonesville. 1550 Comment
  UC1100920  Scirpus maritimus Herbert L. Mason, Verne Grant 1946-8-15 13046 Butte Greylodge Game Refuge near caretaker's house (Butte Sink); , Greylodge Game Refuge Comment
  CAS-BOT-BC110890  Scirpus microcarpus Lowell Ahart 1981-9-15 3173 Butte Along French Creek 1300 Comment
  CHSC40416  Scirpus microcarpus Lowell Ahart 1985-6-30 5076 Butte East of the dirt road to the Forbestown Res., about 2 1/2 miles north-east of Forbestown. 868 Comment
  SEINET10938716  Scirpus microcarpus Lowell Ahart 1985-6-30 Ahart 5076 Butte East of the dirt road to the Forbestown Res., about 2 1/2 miles north-east of Forbestown. Comment
  SEINET10466954  Scirpus mucronatus Mary Susan Taylor 1978-7-22 Taylor 1848 Butte On SE corner of Richvale East Road and Erickson Road, Richvale; in rice field. 30 Comment
  CAS-BOT-BC239955  Scribneria bolanderi Lowell Ahart 1989-5-23 6263 Butte Along Swedes Flat Road, about 1 mile east of the Oroville Bangor Highway, north of Bangor 426 Comment
  CHSC97369  Scribneria bolanderi Paul Maslin 2006-1-1 40 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). Comment
  SEINET10968193  Scribneria bolanderi Mary Susan Taylor 1980-5-15 Taylor 2633 Butte T23N R2E ne sec 7. In and around vernal pools in Chaparral area on Cohasset Ridge, ca. 1/4 mi E of Cohasset Rd, ca. 9 mi NE of Chico. 396 Comment
  CHSC42833  Scutellaria californica L. P. Janeway 1987-6-5 2146 Butte Along the Peavine Cr road (22N39) 0.1 mi E of its beginning at the rd along French Cr. 640 Comment
  CHSC62752  Scutellaria californica L. P. Janeway; Gail Kuenster, Perrie Cobb, Justine Biddison 1993-5-25 4356 Butte About 2.2 mi northeast of Lake Wyandotte; along Stringtown Road 1.3 mi northeast of the saddle where the road starts down to Lake Oroville. 381 Comment
  JEPS115568  Scutellaria californica Lowell Ahart 2009-5-23 15762 Butte South of a small drainage, about 30 yards west of Guardians Trail, about 100 yards northeast of Pine Trail, Upper Bidwell Park, about 3/8 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  CHSC43688  Scutellaria siphocampyloides Vernon Oswald 1984-6-5 1254 Butte Upper Bidwell Park, Chico, in Lindo Channel between Five Mile Recreation Area and the flood control gate. 79 Comment
  CHSC44282  Scutellaria siphocampyloides Vernon H. Oswald; Lowell Ahart 1988-6-17 3390 Butte East of Forbestown Rd. at the e end of Black Bart Rd. 743 Comment
  CHSC101326  Scutellaria tuberosa Lowell Ahart 2009-4-22 15582 Butte South side of Guardians Trail, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  CHSC62564  Scutellaria tuberosa B. Castro 1993-4-28 464 Butte Ca 1 air mi N of Bald Rock Dome on SW end of Watson Ridge. On knoll of S-trending ridge, 10-15 ft E of Feather Falls Trail. 929 Comment
  POM69995  Scutellaria tuberosa C. C. Bruce 1897-04 1836 Butte Little Chico. Comment
  RSA325147  Sedella pumila M. S. Taylor, L. Ahart, J. D. Jokerst 1984-4-8 5141 Butte North Table Mt., 8 miles N of Oroville. 373 Comment
  CHSC32684  Sedum albomarginatum M. S. Taylor; D. Hemphill 1981-3-18 3418 Butte N side of Pulga Rd, at its jct with Hwy 70 at Pulg ... Field redacted by CHSC, contact the data manager for more information 487 Comment
  RSA0081478  Sedum spathulifolium C. C. Bruce 1897-05 1778 Butte Butte Creek. Comment
  UCD69268  Selaginella asprella D. Sanchez-Mata; P. Rodriguez-Rojo 1997-8-16 s.n. Butte Parkhill-Pulga near Pulga Road. 520 Comment
  SEINET11718081  Selaginella hansenii Unknown 1981-1 20 Butte Paradise Quad 335 Comment
  CHSC30693  Selaginella wallacei M. S. Taylor 1980-5-27 2666 Butte On Big Bald Rock, ca. 3 mi e of Lake Madrone. 997 Comment
  HSC85711  Selaginella wallacei L. P. Janeway 1984-10-20 1185 Butte Along dirt road 1.25 mi. E of Bilsap Bar, above the middle fork of the Feather River 640 Comment
  UC174133  Senecio integerrimus var. exaltatus T. S. Brandegee 1892-6-29 Butte Jonesville Comment
  CAS-BOT-BC363994  Senecio integerrimus var. major Lowell Ahart 1987-5-22 5670 Butte About 1/8 mile south-east of Lumpkin Ridge Road, about 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls 1280 Comment
  LA204252  Senecio integerrimus var. major E. B. Copeland; 1929-7-14 498 Butte Jonesville 502 Comment
  RSA4143  Senecio subnudus E. B. Copeland 1930-6-27 497 Butte Jonesville. 1550 Comment
  CHSC116206  Senecio sylvaticus Lowell Ahart 2015-7-4 20269 Butte Clear cut area on the south side of the County Road, about 3/4 mile west of the intersection of Lumpkin Ridge Road, road to Cascade or Fall River and County Road, about 7 (air) miles northeast of Feather Falls. 1270 Comment
  CHSC94021  Senecio triangularis R. D. Fischer 2005-9-5 667 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
  POM219171  Senecio triangularis H. F. Copeland 1928-8-17 251 Butte Jonesville. Comment
  SEINET10473958  Senecio triangularis Mary Susan Taylor 1978-7-19 Taylor 1743 Butte Cherry Hill Campground, on S side of Old Humboldt Road, ca. 2 mi SW of Jonesville. 1524 Comment
  CHSC101284  Senecio vulgaris Lowell Ahart 2009-4-17 15539 Butte South slope of a ridge, about 150 yards west of Highway 32, near the south boundary, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 373 Comment
  CHSC19942  Senecio vulgaris M. S. Taylor 1975-3-26 428 Butte In field between 11th and 12th Sts, at end of Citrus Ave, Chico. Comment
  CHSC34158  Sericocarpus oregonensis Lowell Ahart 1981-8-31 3053 Butte S of the jct of Black Bart Rd and Oroville-Forbestown rd, ca. 10 mi W of Forbestown. 750 Comment
  JEPS104835  Sericocarpus oregonensis Dean W. Taylor 1995-8-6 15388 Butte N end Rocky Ridge; 6 air mi E of Paradise, northern rim of North Fork Feather River canyon; Lassen National Forest 975 Comment
  CAS-BOT-BC364730  Sericocarpus oregonensis subsp. californicus A. A. Heller 1916-9-23 12658 Butte Sierra Foothills near Forest Ranch Comment
  CDA32075  Sesbania punicea C. Owens 2010-9-23 s.n. Butte Chico; 10 meters downstream of River Road in Shady Oak Slough (which connects to Little Chico Creek). 0 Comment
  CHSC97657  Setaria parviflora Lowell Ahart 2007-9-30 14501 Butte West bank of North Honcut Creek, about 1 mile north and 2 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville. 32 Comment
  JEPS102345  Sibara virginica Lowell Ahart 2001-4-27 8733 Butte 1 3/4 mi W of Honcut (just NW of bridge across Wyandotte Creek, N of Lower Honcut Road, 125 yds W of the railroad) 26 Comment
  UC1565640  Sibara virginica Lowell Ahart 1989-3-20 6192 Butte about 3 mi w Honcut (about 13 mi s of Oroville, w of the intersection of Highway 70 and Lower Honcut Road); w of Honcut, s of Oroville 30 Comment
  SEINET10940380  Sibara virginica Lowell Ahart 1985-3-14 Ahart 4846 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. Comment
  CHSC24942  Sidalcea asprella E. Rilla 1976-4-4 12 Butte On slope, ca. 3 ft n of Ponderosa Way, ca. 1 mi w of junc of Ponderosa Way and Hwy 32, ca. 22 mi ne of Chico. 487 Comment
  UC871456  Sidalcea calycosa A. A. Heller 1914-3-23 11225 Butte 8 mi n Oroville; n of Oroville Comment
  UC764088  Sidalcea calycosa subsp. calycosa R. F. Hoover 1936-5-21 1164 Butte 7 mi n Chico; n of Chico Comment
  UC1586587  Sidalcea diploscypha Vernon H. Oswald and Lowell Ahart 1991-5-31 4635 Butte on the sw side Glen Pond (Dan Beebe Trail in the Lake Oroville State Recreation Area, on the s side of Thermalito Diversion Pool); Lake Oroville State Recreation ARea, sw side Glen Pond Comment
  UC1755046  Sidalcea gigantea Dean W. Taylor 1995-8-6 15380 Butte 3 air mi NE of Stirling City (near Jackass Flat); Plumas National Forest 1219 Comment
  CHSC59328  Sidalcea hartwegii J. L. Guardino 1992-4-18 14 Butte Grassy area 20 ft s of ephemeral stream. Southern rim of Chico Creek Canyon, 1.7 mi e of Oak Hollow Ln. 268 Comment
  UC725875  Sidalcea hartwegii A. A. Heller 1926-4-28 13934 Butte near Little Chico Creek; near Little Chico Creek 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
  RSA87488  Sidalcea malviflora subsp. asprella C. L. Hitchcock 1952-5-28 s.n. Butte Oroville-Forbestown Rd, 6 miles W. of Forbestown. Comment
  UC455230  Silene californica Miss Kate Conger 1907-1 Butte Brush Creek Comment
  POM100876  Silene californica C. C. Bruce 1897-05 1875 Butte Forest- Ranch. Comment
  CAS-BOT-BC385887  Silene douglasii E. B. Copeland 1931-6-19 634 Butte Jonesville, near the Summit 2100 Comment
  CDA31994  Silene gallica L. Ahart 2008-5-12 15690 Butte On the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. Comment
  CHSC11054  Silene gallica Lowell Ahart 1966-5-7 Butte Peter Ahart Ranch, Honcut. 45 Comment
  JEPS115630  Silene gallica Lowell Ahart 2009-5-15 15690 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
  CAS-BOT-BC389286  Silene lemmonii E. B. Copeland 1929-7-15 359 Butte Jonesville 1550 Comment
  CHSC25355  Silene lemmonii Marc P. Hayes 1977-4-22 11 Butte Along Hwy 70 ca. 3 km nw of Butte-Plumas county line, ca. 22 km nw of Paradise. 485 Comment
  CHSC32665  Silene lemmonii M. S. Taylor 1981-3-24 3436 Butte S side of Hwy 70, ca. 1/2 mi w of Cresta Powerhouse, ca. 1.5 mi e of Pulga. 487 Comment
  CHSC44513  Silene lemmonii Lowell Ahart 1988-6-29 6105 Butte Along the road to the Andy Smith Ranch, about 100 yards east of Bean Creek Road, about 1 1/2 miles south-east of Little Bald Rock. 914 Comment
  UC600625  Silene lemmonii E. B. Copeland 1930-7-28 Butte Jonesville Comment
  CAS-BOT-BC389289  Silene lemmonii A. A. Heller 1924-4-27 13854 Butte Near the Enloe Sanitarium at Paradise Comment
  SEINET7073605  Silene noctiflora A. G. Vestal 1955-5-20 s.n. Butte Bank of Honey Run Road about 8 miles east of Chico. UTM Zone 10, 613369mE, 4399651mN. Coordinate datum: NAD27. Comment
  JEPS97370  Silene occidentalis subsp. longistipitata Vernon H. Oswald 1995-8-2 7170 Butte T26N R5E SW1/4 SW1/4 Sec. 4, 6000 ft, High Cascade Range, Red Fir Forest. Scotts John Rd. (Forest Rd. 26N11) 1.5 mi N of Jonesville Rd. (Forest Rd. 26N27), between Spurs A and B. 1828 Comment
  CHSC113213  Sinapis arvensis Lowell Ahart 2014-4-9 19337 Butte Near the parking area, west end of West Liberty Road, about one mile (air) south of Colusa Highway, about 7 miles (air) southwest of Gridley. 19 Comment
  CHSC11380  Sisymbrium officinale Lowell Ahart 1972-5-20 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC12106  Sisyrinchium bellum J. M. Pitts 1972-4-19 149 Butte 3.5 mi ne Honeyrun Rd on Humbug Rd. n side of road. Comment
  CHSC52361  Sisyrinchium bellum L. P. Janeway 1989-5-17 3240 Butte Along Forbestown Rd 9.2 mi E of Oroville-Quincey Hwy; 0.1 mi W of Lower Forbestown Rd. 798 Comment
  UC844610  Smilacina racemosa A. A. Heller 1915-6-11 11968 Butte Chico Meadows Sierra Nevada 1219 Comment
  RSA0118931  Solanum americanum Lowell Ahart 2013-11-13 19248 Butte Below the high water line of Lake Oroville, along the sides of Sucker Creek, about 30 yards north of the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 244 Comment
  CAS-BOT-BC157482  Solanum umbelliferum R. R. Kehlor 1951-3-10 12 Butte J. M. Kehlor ranch, 6 1/4 miles east of Oroville Comment
  SEINET12321224  Solanum umbelliferum Unknown 1890-1 s.n. Butte no further locality Comment
  SEINET10839147  Solidago canadensis subsp. elongata Mary Susan Taylor 1978-7-21 Taylor 1832 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
  CHSC89491  Solidago velutina subsp. californica R. D. Fischer 2004-8-22 442 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located at bottom of 10 Mile House Road near gated end of park property and up eastern slope. On hillside above mdw and creek. 304 Comment
  UC195368  Solidago velutina subsp. californica A. A. Heller 1916-9-9 12656 Butte near Durham Comment
  CHSC46338  Soliva sessilis Lowell Ahart 1989-5-10 6219 Butte At the end of the dirt road that leads to Lake Oroville, about 1 1/2 mile north-west of the West Branch Bridge across Lake Oroville. 274 Comment
  CHSC107291  Sonchus asper subsp. asper L. P. Janeway 2011-6-29 10408 Butte Northern High Sierra Nevada. Top of Bloomer Hill, at southwest corner of the fence around the upper communication tower; between the chain-link fence and a little used short access dirt road. 908 Comment
  UCD136130  Sonchus asper subsp. asper E. M. Johnston 1915-1 W- 139 J Butte Biggs. Comment
  JEPS124183  Sonchus oleraceus Lowell Ahart 2015-1-27 19923 Butte Northwest of intersection of Hazel Street and Virginia Street, Gridley. Comment
  POM181473  Sonchus oleraceus H. F. Copeland 863 Butte Nelson. Comment
  CHSC37529  Sonchus tenerrimus M. S. Taylor; L. Ahart 1982-10-11 5050 Butte Graylodge Wildlife Refuge, near check-in station, sw jct of Pennington and Rutherford Rds, ca. 12 mi sw of Gridley. 21 Comment
  CHSC36090  Sorbus scopulina R. A. Schlising; F. J. Fuller, R. Banchero 1982-6-30 4311 Butte NE part of county, E of Inskip and SE of Jones Meadow. At side of stream. 1767 Comment
  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
  UCD92884  Sorghum R. J. Strong 1915-9-1 s.n. Butte Oroville. Comment
  CHSC2192  Sorghum halepense H. Silberman; D. Isaac 1949-5-31 Butte Chico. 57 Comment
  JEPS120721  Sorghum halepense Lowell Ahart 2013-10-12 19110 Butte On the west side of Upper Palermo Road, about 250 yards south of the intersection, about 2 air miles NE of Palermo. Comment
  SEINET10973170  Spartium junceum Mary Susan Taylor 1980-4-27 Taylor 2565 Butte T22N R2E se sec 25. On S side of Humbug Rd, ca. 0.5 mi upstream from Honey Run Covered Bridge, ca. 7 mi E of Chico; Foothill Woodland on edge of Riparian Woodland. With J.D. Jokerst. 137 Comment
  CAS-BOT-BC389943  Spergula arvensis Lowell Ahart 1980-3-22 2047 Butte Peter Ahart Ranch, Honcut 50 Comment
  CDA7727  Spergula arvensis subsp. arvensis L. Ahart 2006-4-23 12533 Butte On the west side of Cherokee Road, about 200 yards south of the cattle chute and parking area on the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  UC1562500  Spergula arvensis subsp. arvensis Barbara Ertter with Lowell Ahart 1986-4-13 5890 Butte ca. 2 airmiles n.-n.e. Honcut (between Oroville and Marysville, Peter Ahart Ranch); Peter Ahart Ranch 30 Comment
  CHSC103974  Spergularia bocconi Lowell Ahart 2010-5-7 16610 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
  CHSC28823  Spergularia rubra J. D. Jokerst; T. B. Devine, D. Greenstein 1979-5-18 415 Butte Top of north Table Mt, ca 1.0 mi n of Cherokee Rd. Along dirt roads. 381 Comment
  SEINET10537505  Spergularia rubra Mary Susan Taylor 1980-10-6 Taylor 3360 Butte T23N R5E se sec 15, Pulga quad. S side of Hwy 70, ca. 0.4 mi W of Bear Creek jct with N Fork Feather River, ca. 0.5 mi W of Arch Rock Tunnel Rest Stop, near Butte-Plumas county line; granitic soils. 488 Comment
  CHSC113962  Sphenosciadium capitellatum Lowell Ahart 2014-7-13 19648 Butte North part of a large wet meadow (some bog), about 100 yards southeast of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC42678  Sphenosciadium capitellatum Vernon Oswald 1983-8-4 955 Butte Near Humboldt Rd. 3.5 mi NE of Butte Meadows. 1414 Comment
  CHSC8559  Spiraea M. MacArthur 1968-6-16 368 Butte E yard of Building T, Chico State College campus. 60 Comment
  UC2026894  Spiraea Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17868 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
  SEINET10483625  Spiraea douglasii Mary Susan Taylor 1977-7-15 Taylor 1410 Butte Ernie's Island, in Butte Creek, at its junction with old Humboldt Rd, Butte Meadows area, ca. 20 air mi NE of Chico. 1311 Comment
  SEINET10483632  Spiraea prunifolia Mary Susan Taylor Taylor 444 Butte Campus of the California State University, Chico. 61 Comment
  CHSC43642  Stachys ajugoides var. rigida B. Castro 1987-7-19 147 Butte Along Coon Ck, near campground 0.95 mi by road into Coon Hollow. 1664 Comment
  CHSC44403  Stachys ajugoides var. rigida Lowell Ahart 1988-6-23 6063 Butte North of Forbestown Road, about 1/12 mile east of the intersection of Black Bart Road and Forbestown Road, about 1 mile west of Robinson Mill Road. 670 Comment
  CHSC65426  Stachys ajugoides var. rigida Vernon Oswald 1983-7-19 875 Butte Doon Campground, ca. 1 mi e of Lovelock on the Skyway n-e of Paradise. 822 Comment
  CDA24151  Stellaria longipes T. C. Fuller 1962-7-12 9182 Butte Road to Jonesville, 2 miles east of Butte Meadows. 0 Comment
  POM161690  Stellaria longipes E. B. Copeland 1929-07 s.n. Butte Jonesville. 1550 Comment
  SEINET10537514  Stellaria longipes Mary Susan Taylor 1978-6-24 Taylor 1637 Butte Ernies Island, in Butte Creek, junction with Old Humboldt Road, ca. 0.5 mi W of Butte Meadows; Yellow Pine Forest. 1372 Comment
  SEINET10537517  Stellaria longipes Lowell Ahart 1983-8-16 Ahart 4306 Butte T26N R4E section 32? On dry dark soil in a small mountain meadow, near Bull Hill Rd, ca. 3.5 mi south of Butte Meadows. Yellow Pine Forest; l600 m. 1600 Comment
  UC852203  Stellaria media A. A. Heller 1914-3-28 11242 Butte Chico; Sacramento Valley Comment
  CHSC59509  Stephanomeria elata Lowell Ahart 1992-9-9 6918 Butte Below the high water line of Lake Oroville, about 1/2 mile south-east of Kunkle Reservoir. 243 Comment
  SEINET10508401  Stipa pulchra Lowell Ahart 1983-6-15 Ahart 4055 Butte Peter Ahart Ranch, ca. 2.5 mi ne of Honcut. Foothill Woodland; 50 m. Along the edges of North Honcut Creek. 50 Comment
  CHSC48347  Streptanthus longisiliquus Vernon Oswald 1983-6-22 748 Butte On the s side of Humboldt Rd. (to Butte Meadows) 3.3 mi n-e of Calif. Hwy 32. 1386 Comment
  CDA13890  Streptanthus polygaloides G. F. Hrusa, T. D. Wilfred 1997-5-8 13747 Butte Sierra Nevada; On slopes facing SSE above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. Comment
  CHSC109572  Streptanthus polygaloides L. P. Janeway 2012-6-7 10860 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
  CHSC52007  Streptanthus polygaloides L. P. Janeway 1988-7-2 2969 Butte Near the road to French Creek 0.6 mi S of Coyote Gap. 1219 Comment
  CHSC87883  Streptanthus polygaloides Lowell Ahart 2004-6-22 11111 Butte On the west 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
  CAS-BOT-BC87434  Streptanthus polygaloides John Thomas Howell; Harvey Keith Wagnon 1980-5-26 53578 Butte Sierra Nevada. Feather River Canyon Highway, 2.4 miles southwest of Pulga Bridge. Comment
  CAS-BOT-BC87435  Streptanthus polygaloides Lincoln Constance 1941-5-28 2826 Butte Sierra Nevada Foothills. South Branch of the Feather River at magalia. 487 Comment
  CAS-BOT-BC87516  Streptanthus tortuosus John Thomas Howell 1978-4-17 52840 Butte Sierra Nevada. Table Mountain. 381 Comment
  HSC96695  Streptanthus tortuosus var. suffrutescens L. Ahart 2006-6-9 12647 Butte W side of Bardees Bar Rd., S of small stream, 0.25 mi. SW of bridge across N Fork Feather River at Bardees Bar, 2.75 mi. SW of Pulga 404 Comment
  CAS-BOT-BC516473  Streptopus amplexifolius V. Oswald; L. Ahart 1988-6-17 3400 Butte West side of Pinkard Creek ca. 1 mile north of Lost Creek Reservoir 1028 Comment
  CHSC46873  Suaeda calceoliformis Vernon Oswald 1989-9-6 3981 Butte West Liberty Rd along the n boundary of Gray Lodge Wildlife Area, 0.8 mi w of Pennington Rd. Roadside drainage. 19 Comment
  SEINET11933193  Suaeda nigra Unknown 1983-1 4452 Butte ca 0.12 mi S of the Graylodge Wildlife Refuge HQ, ca 12 mi SW of Gridley 35 Comment
  CDA15367  Symphoricarpos albus var. laevigatus G. F. Hrusa 1997-5-29 13797 Butte Sierra Nevada; S side of Sucker Run Creek, ~1.5 mi. SSE of Feather Falls townsite. Comment
  CAS-BOT-BC234612  Symphoricarpos mollis Vernon Oswald; Lowell Ahart 1987-7-1 3055 Butte Scotts John Rd. 1.3 mi n of the road connecting Humboldt and Humbug Rds, ca. 2.5 mi ene of Jonesville. On the w side of Scotts John Creek 1828 Comment
  CHSC11846  Symphyotrichum bracteolatum E. B. Copeland 1930-8-26 487 Butte Jonesville. 1500 Comment
  CHSC27722  Symphyotrichum bracteolatum Robert A. Schlising 1978-10-10 3342 Butte Highway 70, Feather River Canyon, just south of Arch Rock Tunnel at P.G. and E. Roadside Rest area. Comment
  UC179637  Symphyotrichum bracteolatum A. A. Heller 1914-8-7 11651 Butte Butte Meadows 1219 Comment
  UC179692  Symphyotrichum spathulatum A. A. Heller 1914-9-3 11760 Butte 6 mi from, (on the Chico-Hamilton rd) Chico Comment
  UC600723  Symphyotrichum spathulatum H. F. Copeland 1932-8-19 Butte Jonesville, at the Lily Pond 1700 Comment
  JEPS108934  Symphyotrichum spathulatum var. spathulatum Lowell Ahart 2006-9-9 13245 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
  CAS-BOT-BC376773  Tanacetum parthenium Lowell Ahart 1985-7-9 5109 Butte Along Ponderosa Way, about 1/2 mile south of the Ponderosa Dam across the South Fork of the Feather River, about 3 1/2 miles north-west of Forbestown 457 Comment
  CHSC87775  Tauschia hartwegii Paul Maslin 2004-4-22 28 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). UTM: 10611524E 4411103N. Comment
  CHSC48910  Tellima grandiflora Vernon Oswald 1984-4-9 1132 Butte Feather Falls Trail, 2.1 trail mi. from the trail head at the end of Bryant Ravine Rd. 457 Comment
  UC444993  Thalictrum sparsiflorum E. B. Copeland 1930-8-26 Butte above Butte Creek; Jonesville 1800 Comment
  CHSC25274  Thymus vulgaris K. R. Stern 1977-6-25 Butte Comment
  CHSC35020  Thysanocarpus curvipes R. E. Preston 1982-3-25 199 Butte W side of Hwy 70 at jct with Yankee Hill Rd, ca. 13 mi n of Oroville. 518 Comment
  JEPS119789  Thysanocarpus curvipes var. curvipes Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18014 Butte South of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  RSA755350  Thysanocarpus curvipes var. curvipes L. P. Janeway 2008-3-18 9233 Butte Cascade Range Foothills. East edge of City of Chico, south side of Humboldt Road 1.3 km northeast of Bruce Road. 123 Comment
  CHSC103659  Thysanocarpus radians Lowell Ahart 2010-3-31 16572 Butte Open pasture field, about 1 1/2 miles north and 2 1/2 miles east of Honcut, about 12 miles southeast of Oroville. 66 Comment
  UC725966  Thysanocarpus radians A. A. Heller 1929-3-13 14809 Butte Richardson Springs road Comment
  UC857581  Thysanocarpus radians A. A. Heller 1916-3-18 12281 Butte 8 mi n Oroville Comment
  CHSC100474  Tilia europaea Lowell Ahart; John Dittes 2008-11-14 15448 Butte On the north side of the deer pen, 10 yards east of the small storage building, about 100 yards east of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  UC600467  Tofieldia occidentalis subsp. occidentalis H. F. Copeland 1924-8-12 Butte Jonesville Comment
  CHSC42683  Torilis arvensis subsp. arvensis Vernon Oswald 1985-6-5 1809 Butte River Rd. 0.7 mi sw of its jct. with Chico River Rd. 36 Comment
  CHSC71254  Torilis arvensis subsp. purpurea Lowell Ahart 1998-7-1 8018 Butte Southwest of the Ione oak tree, west of the cow chute on the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CHSC38752  Torilis nodosa Vernon Oswald 1983-5-7 441 Butte Upper Bidwell Park, Chico, on the north rim at the head of the east tributary of Sycamore Creek. 365 Comment
  SEINET11192984  Torilis nodosa B. Ertter, L. Ahart, J. Strachan 1980-5-6 3281 Butte Peter Ahart Ranch, ca 2.5 miles NNE of Honcut, between Oroville and Marysville. 30 Comment
  JEPS116038  Toxicodendron diversilobum Lowell Ahart 2009-4-22 15565 Butte West side of Guardians Trail, about 50 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
  SFV2133  Toxicodendron diversilobum M. L. Vincent 1960-9-8 90 Butte Sierra Nevada Paradise. In lot across street from 5330 Harrison Road. 525 Comment
  UC176924  Toxicodendron diversilobum A. A. Heller 1913-6-6 10787 Butte 8 mi. n. Oroville (Table Mt.); Table Mt. 182 Comment
  CAS-BOT-BC377069  Tragopogon dubius Lowell Ahart 1988-5-30 6030 Butte Along Poe Power House Road, about 1/10 mile north of the Poe Power House, about 2 miles south-east of Jarbo Gap 335 Comment
  SEINET10494783  Tribulus terrestris Lowell Ahart 1985-6-9 Ahart 5043 Butte Cherry Street, between 9th and 8th Street, Chico. Comment
  JEPS115632  Trichostema lanceolatum Lowell Ahart 2009-8-20 16287 Butte Near the rim edge, west edge of the open area west of the Guardian Rock Trail, about 100 yards north of Pine Trail, about 3/8 mile (air) southwest of the interesection of Ten Mile House Road and Highway 32, Upper Bidwell Park, about 10 miles northeast of 398 Comment
  HSC86881  Trichostema oblongum L. P. Janeway, R. S. Schlising 1988-7-16 3035 Butte Next to Humbug Rd .8 mi. W of Butte Creek house 1806 Comment
  CHSC98659  Trichostema simulatum B. Castro; L. P. Janeway 2005-8-2 1508 Butte Ca. 1.5 mi E of Magalia, 0.5 mi E of Sawmill Peak, on N side of USFS Rd 23N07 connecting Ponderosa Way with the Lookout. Just off N edge of road. 950 Comment
  CHSC116323  Trifolium Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-7-31 20413 Butte Along dirt road leading to the edge of Wilson Lake, east of County Road 769, 2.05 air-miles east of intersection of State Highway 36 and Wilson Lake Road, 2.32 air-miles north-northeast of Gurnsey Creek Campground, 10.74 air-miles south-southeast of Lassen Peak. 1606 Comment
  UC572619  Trifolium albopurpureum F. W. Embree 1934-4-24 40 Butte 6 mi ne Biggs; Marysville quadrangle 30 Comment
  RSA754788  Trifolium albopurpureum var. albopurpureum L. Ahart 2009-4-26 15629 Butte N side of Ten Mile House Road, Upper Bidwell Park, about 1/2 air mile SW of the intersection of Highway 32 and Ten Mile House Road, about 10 miles NE of Chico 311 Comment
  CDA38822  Trifolium bifidum var. bifidum L. Ahart 2012-4-3 17924 Butte North of the meadow, southwest of Ten Mile House Road, about 1/4 mile west of Highway 32, about 9 miles (air) northeast of Chico, south part of Upper Bidwell Park. Comment
  HSC103998  Trifolium bifidum var. bifidum L. Ahart 2012-5-12 18026 Butte About 9 air mi. NE of Chico, southern part of Upper Bidwell Park, ~0.5 air mi. W of Hwy. 32, ~300 yds. SW of Ten Mile House Rd., north of the large meadow 268 Comment
  JEPS119768  Trifolium bifidum var. bifidum Lowell Ahart 2012-5-12 18042 Butte On the grassy sides of Guardian Trail, about 300 yards north of Humboldt Trail, about 1/8 mile west of Highway 32, south part of Upper Bidwell Park, about 8 miles (air) northeast of Chico. Comment
  CHSC93975  Trifolium breweri R. D. Fischer 2004-6-20 775 Butte Sierra Nevada Mountains, north-east corner of Butte County and ca. 4 miles north of Butte Meadows off Scout Road. Boy Scout Camp. At north end of Chico Meadows in wooded area between Scout Road and meadow. 1371 Comment
  JEPS98408  Trifolium campestre Lowell Ahart 2000-5-17 8361 Butte 7 1/2 air miles W of Oroville (S margin of Thermalito Afterbay, N side of the poor dirt road, about 1/10 mi N of the Richvale Hwy, 1/2 mi E of Hwy 99) 42 Comment
  JEPS123912  Trifolium ciliolatum Lowell Ahart 2015-4-27 20082 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
  UCSC008268  Trifolium cyathiferum Lowell Ahart 2006-7-19 13052 Butte About 40 yards of the abandoned logging road, about 250 yards north of where the dirt road crosses Colby Creek, about 2 miles (air) southeast of Colby Mountain, about 5 1/8 miles (air) northeast of Butte Meadows. 1540 Comment
  CHSC65201  Trifolium depauperatum var. amplectens Lowell Ahart 1995-5-30 7579 Butte Along the edge of the dirt road, south of Beatson Hollow, about 1/8 mile north of Cherokee Road, North Table Mountain, about 7 miles north of Oroville. 335 Comment
  JEPS119694  Trifolium depauperatum var. amplectens Lowell Ahart 2012-5-2 17949 Butte West of the Government Pole Line, Upper Bidwell Park, about 1 mile east of Chico. Comment
  CHSC83920  Trifolium depauperatum var. depauperatum Lowell Ahart 2003-4-10 10062 Butte Near the east side of the 'sunken area,' about 150 yards west of the east rim of South Table Mountain, about 2 1/2 miles (air) north of Oroville. 320 Comment
  UCD72998  Trifolium depauperatum var. depauperatum Ayzik Solomeshch 2003-4-9 s.n. Butte Wurlitzer Reserve, about 10 mi. north from Chico on Hwy 99, west side of the road. Comment
  POM28729  Trifolium dichotomum C. C. Bruce 1898-05 2426 Butte [No location information provided.] Comment
  SEINET10452503  Trifolium dubium Mary Susan Taylor 1978-7-19 Taylor 1730 Butte Cherry Hill Campground, on S side of Old Humboldt Road, ca. 2 mi SW of Jonesville. 1524 Comment
  CHSC102500  Trifolium glomeratum Lowell Ahart 2009-5-30 15777 Butte On the north side of Ten Mile House Road, Upper Bidwell Park, about 3/8 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 356 Comment
  CHSC38527  Trifolium hirtum Vernon Oswald 1983-5-1 400 Butte Upper Bidwell Park, Chico, beside Yahi Trail ca. 1000 ft e of Salmon Hole. 182 Comment
  RSA634248  Trifolium incarnatum Michael A. Vincent 1998-4-6 8108 Butte Oroville. Along Rt. 162 of Lincoln Boulevard. Comment
  JEPS104008  Trifolium jokerstii Lowell Ahart 2003-4-8 10041 Butte 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. 330 Comment
  UCD18731  Trifolium jokerstii Vernal Pool Team 2001; Carol Witham and Jennifer Buck 2001-4-10 24 Butte one mi. east of Rock River Mine and parking area, off Cherokee Rd., North Table Mountain, Oroville site, pool # ORO002, UTMs: 10S0624439; 4384482. Comment
  CHSC96794  Trifolium microcephalum Lowell Ahart 2007-4-30 13709 Butte On the north side of Jordan Hill Road, about 2 miles northwest of Concow Creek, about 2 miles northwest of Concow Reservoir. 484 Comment
  UCD73008  Trifolium microcephalum Ayzik Solomeshch 2003-4-9 s. n. Butte Wurlitzer Reserve, about 10 mi. north from Chico on Hwy 99, west side of the road. Comment
  CHSC30643  Trifolium obtusiflorum M. S. Taylor 1979-8-4 2179 Butte Ca. 1 mi n of Cresta Powerhouse on Hwy 70, ca. 30 mi n of Oroville. 487 Comment
  JEPS87708  Trifolium oliganthum Lowell Ahart 1994-4-16 7283 Butte ca 12 mi se Oroville (steep e slope of w side of North Honcut Creek, Peter Ahart Ranch, ca 1 1/4 mi n and 2 3/4 mi e of Honcut) 45 Comment
  SEINET10841161  Trifolium oliganthum Lowell Ahart 1991-4-8 Ahart 6644 Butte On a steep slope on the west side of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 2 and 3/4 miles east of Honcut, about 12 miles southeast of Oroville. Foothill Woodland. T17N R4E S11. 46 Comment
  CHSC64042  Trifolium repens S. C. Morey 1983-8-4 713 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  POM27846  Trifolium repens C. C. Bruce 1898-05 2427 Butte Butte Creek. Comment
  CHSC111353  Trifolium variegatum var. major Lowell Ahart 2012-5-4 17990 Butte On wet dark soil, on the sides of a drainage, about 1/2 mile southwest of the lone pine tree on the rim of Beatson Hollow, about 1 1/4 mile northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 302 Comment
  CHSC23431  Trifolium variegatum var. major M. S. Camp 1974-4-27 20 Butte N side of Table Mountain 6 mi n of Oroville. Comment
  CHSC42534  Trifolium variegatum var. variegatum Lowell Ahart 1987-5-12 5629 Butte Near a seep, south of Lumpkin Ridge Road, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 1280 Comment
  CHSC110317  Trifolium vesiculosum B. Castro 2012-6-27 1934 Butte Sacramento Valley. At N end of Chico, just S of the Chico Airport, along sycamore Creek ca 0.5 mi downstream (W) of its crossing under the Cohasset Hwy bridge. Low flat floodplain on S side of channel, excavated and leveled in 2010 in a sediment removal project. 54 Comment
  UC1303181  Trifolium willdenovii A. A. Heller May 1907 13918 Butte ca 4 mi e Chico (near the Hooker Oak); Bidwell Ranch Comment
  CHSC28548  Trifolium wormskioldii M. S. Taylor; J. T. Howell 1978-7-18 1725 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
  CHSC63814  Trifolium wormskioldii S. C. Morey 1983-8-1 661 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  JEPS110193  Trifolium wormskioldii Lowell Ahart 2006-7-16 12985 Butte In a bog, 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
  UC80467  Trifolium wormskioldii T. S. Brandegee 1892-6-28 Butte Jonesville Comment
  POM109151  Trillium albidum Mrs. R. M. Austin, C. C. Bruce 1898-05 2420 Butte Sutton House Comment
  CHSC43602  Triodanis biflora Lowell Ahart 1974-5-14 455 Butte Peter Ahart Ranch, about 12 miles south of Oroville. 45 Comment
  CHSC3571  Triphysaria eriantha R. D. Briggs 1966-2-21 38 Butte Side of Durham-Pentz Rd., 5 miles s.s.e. of downtown Chico and 1 mile west of hwy. US 99E. 59 Comment
  HSC70518  Triphysaria eriantha subsp. eriantha J. P. Smith 1973-3-22 5927 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  SBBG93235  Triphysaria eriantha subsp. eriantha J. Ingram, A. Ingram 1960-4-5 285 Butte Neal Rd, ca. 2 mi S of Paradise Comment
  POM195807  Triphysaria eriantha subsp. eriantha A. A. Heller 1926-3-22 13910 Butte East of Chico near the Hooker Oak, Comment
  CHSC34230  Triphysaria pusilla M. S. Taylor 1981-5-6 3623 Butte W side of rd leading to Jackson Ranch, ca. 1 mi sw of its jct with 21N25Y.1, ca. 5 air mi n of Feather Falls. 1127 Comment
  HSC97036  Triphysaria versicolor subsp. faucibarbata L. Ahart 2004-4-4 10727 Butte N side of Richvale Hwy., 0.5 mi. E of Richvale 32 Comment
  CHSC55316  Trisetum projectum Lowell Ahart 1991-9-19 6727 Butte Near where the two branches of Wildcat Creek come together, about 2 miles north-west of Four Trees, about 2 miles west of the Oroville-Quincy Highway, about 2 miles north-east of Coyote Gap. 1219 Comment
  UC421849  Triteleia bridgesii R. M. A. May 1883 201 Butte Comment
  UCD139356  Triteleia bridgesii B. L. Halleck 1979-4-21 26 Butte 1 mile east towards Nelson Bar off the Magalia and Pentz Hwy., on the west forl of the Feather River. Comment
  CHSC30976  Triteleia hyacinthina Roberta A. Boer 1980-4-13 8 Butte Ca. 1/4 mi w of Foothill Blvd. And 2.7 mi se of jct of Olive Hwy and Foothill Blvd., ca. 3.5 mi se of Oroville. 121 Comment
  POM169389  Triteleia hyacinthina A. A. Heller, H. E. Brown 1902-5-5 5453 Butte Near Chico Comment
  POM196144  Triteleia ixioides subsp. anilina E. B. Copeland 1929-7-15 351 Butte Jonesville. 1550 Comment
  SEINET10472683  Triteleia ixioides subsp. scabra Mary Susan Taylor 1980-4-16 Taylor 2487 Butte T21N R4E s sec 17 Cherokee quad. Lake Oroville State Recreation Area, up to 0.5 mi SE of Parish Camp, just S of Lime Saddle Memorial Park, ca. 5 mi S of Paradise; Foothill Woodland. 305 Comment
  UCD139348  Triteleia ixioides subsp. scabra W. R. Powell 1968-5-17 1513 Butte 3.5 miles east-northeast of Lake Wyandotte and 3 miles north of Rackerby. 466 Comment
  CHSC29727  Triteleia ixioides subsp. unifolia J. D. Jokerst 1980-4-17 601 Butte Top of North Table Mountain, N of Cherokee Rd. 426 Comment
  CHSC90569  Triteleia laxa Ken R. Pearson 1983-4-5 6 Butte Ca. 100 m w of Chico Creek, 1 km nw of diversion dam, 3.2 km nne of Chico. 180 Comment
  CHSC96395  Triteleia laxa L. P. Janeway 2006-4-30 8560 Butte Cascade Range Foothills. East edge of city of Chico; northwest side of Humboldt Road 2.4 km northeast of Bruce Road. 149 Comment
  RSA725053  Triteleia laxa L. P. Janeway 2006-4-30 8560 Butte Cascade range Foothills. East edge of city of Chico; NW side of Humbolt Road 2.4 km northeast of Bruce Road. 149 Comment
  CAS-BOT-BC522168  Triteleia laxa Ira L. Wiggins 1925-3-25 1428 Butte 3 miles west of Pence on Pence-Durham Road Comment
  SEINET10533661  Triteleia laxa H. E. Brown 1897-4-15 Brown 178 Butte Collected near Clear Creek. 175 feet. Comment
  SEINET10938213  Triteleia laxa Mary Susan Taylor, Vernon H. Oswald 1984-4-4 Taylor 5380 Butte T22N R2E nw sec 25. N side of Humbug Rd, ca. 0.5 mi E of Honey Run Covered Bridge, ca. 6 air mi E of Chico. Foothill Woodland; 600 ft elev. 183 Comment
  CHSC107397  Triteleia lilacina Blake McSorley 2010-4-6 Butte Dye Creek Preserve. 135 Comment
  UC1280471  Triteleia lilacina Theodore F. Niehaus 1965-3-28 372 Butte e side Table Mountain top (along both sides of road); Table Mountain Comment
  JEPS116049  Triticum aestivum Lowell Ahart 2009-4-3 15537 Butte Along the south side of the gravel road, east of the Cedar Grove parking area in Lower Bidwell Park, Chico 67 Comment
  CHSC37098  Turritis glabra L. Ahart 1982-9-13 3819 Butte Along edge of dirt rd that is near Pinkard Creek, ca. 1/8 mi n of Lost Creek Reservoir Dam, ca. 2.2 mi nw of Strawberry Valley. 1100 Comment
  CHSC97366  Turritis glabra Paul Maslin 2006-5-1 49 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). UTM: 10608658E 4408902N. 414 Comment
  RSA0035333  Ulmus parvifolia Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 17999 Butte On the east side of the horse path, about 100 yards north of the paved park road, west side of the old walnut orchard, south of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. 76 Comment
  CHSC32650  Umbellularia californica M. S. Taylor 1981-3-18 3424 A Butte On n bank of West Branch Feather River, near bridge on Ponderosa Way (Jordan Hill Rd), ca. 1 mi ne of Magalia. 487 Comment
  CHSC109104  Uropappus lindleyi Lowell Ahart 2012-3-23 17782 Butte On the sides of the trail down to Big Chico Creek, about 50 yards west of Ten Mile House Road, about 3/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. 215 Comment
  CHSC35074  Uropappus lindleyi R. A. Schlising 1980-4-3 3544 Butte E of Chico and SW of Paradise along Skyway. Comment
  CHSC63241  Urospermum picroides Lowell Ahart 1994-4-29 7290 Butte Dredge trailings, on the west side of North Honcut Creek, about 2 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles south-east of Oroville. 54 Comment
  SEINET3449417  Urospermum picroides Unknown 2003-5-14 10176 Butte Oroville, Oroville, about 12 miles southeast, dredge piles on west side of North Honcut Creek, about 2.5 miles north and 2.6 miles east of Honcut 60 Comment
Read comments
May 8 2019
  CAS-BOT-BC193408  Vaccinium uliginosum E. B. Copeland 1930-6-24 438 Butte Jonesville 1700 Comment
  CHSC61649  Valeriana californica Lowell Ahart 1993-9-8 7168 Butte On ridge, about 1/2 mile east of Snow Mountain. 2103 Comment
  CHSC43410  Velezia rigida Lowell Ahart 1979-5-29 1899 Butte Along the edges of a small wash, east of Kunkle Creek, about 2 1/2 miles south-east of Paradise. 487 Comment
  SEINET10537543  Velezia rigida Mary Susan Taylor 1980-5-31 Taylor 2766 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
  JEPS117558  Verbascum blattaria Lowell Ahart 2010-6-25 16840 Butte East edge of the wet area west of the lone oak tree, about 80 yards west of the improved parking area, cattle chute and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 406 Comment
  UCD124730  Verbascum thapsus L. E. Hazeltine 1916-7-3 s.n. Butte Chico. Comment
  CHSC66449  Verbena hastata Vernon H. Oswald; Lowell Ahart 1996-6-10 7762 Butte Sacramento National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service Parcel between 7 Mile Lane and the Sacramento River. Near the farm road crossing a branch of Angel Slough at the SE corner of Tract 1, Sanctuary I. 32 Comment
  SBBG128793  Verbena hastata L. Ahart 2012-10-20 18490 Butte S side of Big Chico Crk, ca. 50 yards E of Table 5, W of Cedar Grove, Lower Bidwell Park, Chico 68 Comment
  CHSC42874  Veronica arvensis Lowell Ahart 1987-5-12 5626 Butte South of Lumpkin Ridge Road, south of the dirt road, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 1280 Comment
  JEPS115245  Veronica arvensis Lowell Ahart 2009-4-3 15535 Butte Along the north margin of the gravel road, east of the Cedar Grove parking area in Lower Bidwell Park, Chico 67 Comment
  POM44581  Veronica peregrina var. xalapensis C. C. Bruce 1898-05 s.n. Butte [No location information provided.] Comment
  CHSC90807  Veronica persica Lowell Ahart 2005-4-18 11728 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
  JEPS113140  Veronica persica Lowell Ahart 2007-3-12 13593 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
  JEPS115257  Veronica persica Lowell Ahart, Josephine Guardino, Steve Green 2009-2-20 15493 Butte Near the north side of Cedar Grove, Lower Bidwell Park, Chico 67 Comment
  CHSC105818  Veronica serpyllifolia subsp. humifusa Lowell Ahart 2010-9-28 17268 Butte Along the east side of Big Kimshew Creek, about 100 yards east of the poor dirt road, about 1-1/2 miles (air) northeast of Jones Meadow, about 2-1/2 miles (air) southeast of Philbrook Reservoir. 1886 Comment
  CHSC205  Viburnum nudum K. Stern 1963-9-25 Butte Near Oroville. 52 Comment
  CHSC54386  Vicia faba M. Bailey 1991-3-6 610 Butte Butte College campus, south of the library, west of the tennis courts. Comment
  CHSC51056  Vicia sativa Pauleen Broyles 1987-4-29 1020 Butte The Nature Conservancy Vina Plains Preserve. Wurlitzer Addition. Comment
  CHSC44960  Vicia sativa subsp. nigra Lance E. Neuman 1987-4-10 12 Butte Ca. 100 yd n of Horseshoe Lake. 106 Comment
  CDA42888  Vicia sativa subsp. sativa L. Ahart 2012-5-2 18102 Butte Where the Humboldt Trail comes out to the old road and Highway 32, southeast part of Upper Bidwell Park, northeast of Chico. Comment
  CHSC113204  Vicia sativa subsp. sativa Lowell Ahart 2014-4-16 19377 Butte On the sides but near the top of a large canal, about 100 yards north of East Gridley Road, on the west side of the Feather River, about 2 miles east of Gridley. 29 Comment
  SEINET10943915  Vicia villosa subsp. varia Lowell Ahart 2005-4-14 Ahart 11701 Butte T18N, R2E, southeast 1/4 Section 36. The tip of a 3-4 foot long stem, on damp good soil, east of the railroad tracks, north of Spruce Street, Gridley. 28 Comment
  CHSC80552  Vicia villosa subsp. villosa Lowell Ahart 2001-5-10 8737 Butte On the sides of the dirt road east of the large pump, on the south side of Evans-Reimer Road, about 1 mile east of Pennington Road, Gray Lodge Waterfowl Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  CHSC11043  Vinca major Lowell Ahart 1967-4-12 Butte Near Bidwell Bar. 304 Comment
  CHSC10637  Viola douglasii Lowell Ahart 1971-4-5 Butte Peter Ahaart Ranch, Honcut. 45 Comment
  SEINET11991656  Viola douglasii D. E. Nay 1975-1 31 Butte 1 mi SE of 99E/Skyway jct, Chico 84 Comment
  UC478498  Viola glabella E. B. Copeland 1931-5-9 660 Butte Jonesville 1500 Comment
  CAS-BOT-BC536514  Viola glabella E. B. Copeland 1931-5-9 s.n. (distributed as Baker's 660 ) Butte Jonesville 1500 Comment
  RSA402206  Viola lobata E. B. Copeland 1929-6-11 1207 Butte Jonesville. 1524 Comment
  RSA4234  Viola lobata E. B. Copeland 1929-7-13 384 Butte Jonesville. 1550 Comment
  CAS-BOT-BC530156  Viola lobata L. W. Swift 1934-8-5 104 Butte Plumas N.F., S. Challenge 914 Comment
  CAS-BOT-BC530159  Viola lobata H. F. Copeland 1920-5-9 s.n. Butte near Jonesville 1219 Comment
  CAS-BOT-BC530165  Viola lobata A. A. Heller 1915-6-25 12021 Butte Chico Meadows in the Sierra Nevada 1219 Comment
  CHSC2014  Viola lobata subsp. lobata E. Crouch 1929-5-19 Butte Butte Meadows. 1219 Comment
  POM219290  Viola macloskeyi H. F. Copeland 1927-5-6 227 Butte Jonesville. 1524 Comment
  CAS-BOT-BC168218  Viola purpurea Lowell Ahart 1982-6-4 3535 Butte 1 1/2 miles east of Camp 18, about 8 miles east of Feather Falls 1000 Comment
  CHSC32638  Viola purpurea subsp. purpurea M. S. Taylor; L. Hanson 1981-3-31 3458 Butte N side of spur rd, ca 1/10 mi w of its jct with Ponderosa Way (Rim Rd, rd to Flea Valley) ca. 5 mi ne of its jct with Hwy 70 at Jarbo Gap, ca. 18 air mi n of Oroville. 792 Comment
  RSA31754  Viola purpurea subsp. purpurea A. A. Heller 1918-5-5 13014 Butte Magalia. Comment
  CHSC2031  Viola purpurea subsp. quercetorum R. Carter 1965-3-13 156 Butte Found on North Table Mt. ca. 10 yds. SE of point where Old Cherokee Rd. comes over S rim of table. 304 Comment
  JEPS93840  Viola purpurea subsp. quercetorum Lowell Ahart 1998-6-3 7974 Butte about 7 air mi n of Oroville (about 1/4 mi n of the cow chute along Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 403 Comment
  POM83869  Viola purpurea subsp. quercetorum C. C. Bruce 1897-05 1968 Butte Little Chico. Comment
  POM173373  Viola purpurea subsp. venosa H. F. Copeland 1927-5-6 1006 Butte Jonesville. Comment
  CDA35710  Vitis californica J. T. Howell 1961-9-22 36761 Butte North Fork of Feather River, 10 miles from Oroville. 0 Comment
  UCD93866  Vulpia microstachys var. ciliata M. Vincent 1964-4-11 570 Butte Rocky Hill. 3 miles south of Cherokee. Oroville. Comment
  CDA13894  Vulpia microstachys var. pauciflora G. F. Hrusa, T. D. Wilfred 1997-5-8 13751 Butte Sierra Nevada; Above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. Comment
  CHSC31744  Vulpia microstachys var. pauciflora L. Ahart 1978-5-16 1730 Butte In a pasture field. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC49595  Vulpia myuros Vernon Oswald 1983-4-4 264 Butte Upper Bidwell Park, Chico, on the north rim ca. 2 mi e of the power lines. 390 Comment
  CHSC61553  Vulpia myuros var. hirsuta Lowell Ahart 1993-6-20 7004 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of Lost Creek Reservoir Dam. 1158 Comment
  CAS-BOT-BC382899  Wyethia angustifolia L. P. Janeway 1995-6-28 4822 Butte South side of Watson Ridge about 1.5 mi south of Pompys Point 1097 Comment
  SEINET10474067  Xanthium strumarium Mary Susan Taylor 1974-1 Taylor 324 Butte 61 Comment
  UC142123  Zigadenus venenosus var. venenosus Mrs. R. M. Austin Apr 1896 31 Butte Little Chico Creek Comment



  Copyright © 2019 Regents of the University of California — Updated 11 January 2019
0.15 processing seconds