Search Results — 2000 specimen records retrieved (1584 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  POM220655  Abies concolor H. F. Copeland 1928-8-20 201 Butte Jonesville. 1524 Comment
  CHSC81447  Acer circinatum D. Tellefson 2000-4-18 Butte Paradise Lake, north of Paradise. 700 Comment
  CAS-BOT-BC331604  Acer macrophyllum A. A. Heller 1914-3-19 11213 Butte Canon of Big Chico creek along the stream. Comment
  CAS-BOT-BC331608  Acer macrophyllum A. A. Heller 1921-3-28 13536 Butte Chico Comment
  RSA18969  Acer negundo subsp. californicum L. S. Rose 1937-6-10 37378 Butte 7 miles west of Honcut, along the banks of the Feather River 23 Comment
  SEINET10454009  Acer saccharinum Mary Susan Taylor 1975-5-6 Taylor 555 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
  JEPS117291  Achillea millefolium Lowell Ahart 2010-9-21 17216 Butte About 70 yards east of the poor dirt road, about 80 yards west of Big Kimshew Creek, about 1 1/2 miles (air)northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir 1917 Comment
  CAS-BOT-BC210635  Achnatherum lemmonii Lowell Ahart 1985-5-15 5004 Butte 1/8 mile east of the dirt road, about 1 1/2 miles north-east of Concow Res. 800 Comment
  CHSC27659  Achnatherum lemmonii Robert A. Schlising 1978-4-23 3229 Butte Magalia; just S of the Magalia Reservoir (just W of S. T. RR and Coutelenc Road). Comment
  JEPS113329  Achnatherum lemmonii L. P. Janeway 2006-6-25 8701 Butte Northern High Sierra Nevada. Along a major dirt road 2.6 km south of Stirling City towards West Branch Feather River crossing. Comment
  UCD50598  Achnatherum lemmonii Elizabeth Wilson 1940-6-21 s.n. Butte Butte County, near De Sabla, California. Comment
  UCD50642  Achnatherum lemmonii W. R. Powell 1968-5-17 1512 Butte Along new Oro-Feather Falls Road, 4 miles north-northwest of Rackerby, Butte County, California. 548 Comment
  RSA268070  Achnatherum lemmonii var. lemmonii J. R. Reeder, C. G. Reeder 1972-6-6 5654 Butte Ca. 4 miles N of Forest Ranch. 1067 Comment
  RSA299172  Achnatherum lemmonii var. lemmonii J. T. Howell 1962-6-16 37566 Butte Magalia 732 Comment
  RSA712954  Achnatherum lemmonii var. lemmonii L. Ahart 2006-5-10 12625 Butte Bardees Bar Road, South of the small stream, About 200 yrds NW of poor bridge across the North Fork of the Feather River at Bardees Bar, About 2.5 air mi SW of Pulga Comment
  CHSC56744  Achyrachaena mollis J. D. Jokerst 1980-3-26 Butte East side of Chico; 100m northeast of junction of Bruce Road and Skyway. Comment
  CHSC56837  Achyrachaena mollis R. L. Ondricek-Fallscheer 1983-5-7 167 Butte At southwestern-most end of Flatiron Ridge, ca 3 1/2 mi west-southwest of Paradise. 152 Comment
  SEINET11838910  Achyrachaena mollis Unknown 1978-1 13 Butte Small population ca 2 mi N of Chico on State Hwy. 99 67 Comment
  CHSC102163  Acmispon americanus var. americanus Lowell Ahart 2009-6-19 15930 Butte On dry soil, 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. 379 Comment
  CHSC28007  Acmispon americanus var. americanus M. S. Taylor 1978-7-21 1795 Butte Lake Madrone at its jct with Oroville-Quincy Hwy ca. 10 mi ne of Oroville. 609 Comment
  CHSC42108  Acmispon americanus var. americanus Lowell Ahart 1986-11-14 5479 Butte On the drying margins of a pond, about 1/10 mile south of the clay burrow for Oroville Dam, 1/4 mile east of Larkin Road, about 6 miles south-west of Oroville. 36 Comment
  CHSC78250  Acmispon americanus var. americanus Lowell Ahart 2000-6-27 8525 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
  HSC104010  Acmispon americanus var. americanus L. Ahart 2013-11-18 19282 Butte About 2.5 air mi. NE of Hurleton, below the high water line of Lake Oroville, ~150 yds. NE of the boat ramp at the end of Stringtown Rd.,~ 50 yds. north of the road 261 Comment
  UCD103797  Acmispon americanus var. americanus A. A. Heller 1914-8-11 11675 Butte Chico-Hamilton road, 6 miles from Chico. Comment
  CHSC39499  Acmispon brachycarpus Lowell Ahart 1983-5-28 4022 Butte Above the trail to the over-look at Feather Falls, about 5 1/4 miles north of the town of Feather Falls. 600 Comment
  JEPS120584  Acmispon brachycarpus Lowell Ahart 2013-11-18 19281 Butte Below the high-water line of Lake Oroville, about 150 yards northeast of the boat ramp at the end of Stringtown Road, about 50 yards north of the road, about 2.5 air miles northeast of Hurleton. Comment
  UCD103752  Acmispon denticulatus A. A. Heller 1914-3-28 11238 Butte Hills 8 miles north of Oroville. Comment
  CHSC6600  Acmispon grandiflorus var. macranthus G. Estrem 1968-4-23 2 Butte Ca. 20 mi e of Oroville on hwy. 70. Ca. 100 yds. s of road on n facing slope. Comment
  JEPS120601  Acmispon nevadensis Lowell Ahart 2013-11-17 19269 Butte About 60 yards east of McCabe Creek, below the high water line of Lake Oroville, about 5/8 mile southwest of the enterprise Bridge across Lake Oroville. Comment
  UCD104256  Acmispon nevadensis var. nevadensis A. A. Heller 1917-7-26 12828 Butte Butte Meadows. 1402 Comment
  CHSC108831  Acmispon strigosus Lowell Ahart 2012-4-17 17878 Butte Bare areas where cobbles were removed for Oroville Dam, about 200 yards southeast of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. 35 Comment
  CHSC33695  Acmispon wrangelianus L. Ahart 1981-4-9 2750 Butte On bare area near North Honcut Creek on Peter Ahart Ranch, ca. 1 mi n and 3 mi e of Honcut. 50 Comment
  CAS-BOT-BC391377  Aconitum columbianum subsp. columbianum H. F. Copeland 1920-8-12 127 Butte Beside Butte Creek 1676 Comment
  CHSC45537  Aconitum columbianum var. columbianum Kirsten Tarp 1982-7-12 195 Butte N part of county, e of Butte Creek House. In meadow. 1926 Comment
  CAS-BOT-BC412867  Aconogonon davisiae E. B. Copeland 1931-6-19 629 Butte Jonesville 2100 Comment
  SDSU13784  Adelinia grandis Kate Conger Butte Brush Creek. 1077 Comment
  CHSC11851  Adenocaulon bicolor E. B. Copeland 1930-8-9 483 Butte Jonesville. 1500 Comment
  JEPS108865  Adenocaulon bicolor Lowell Ahart 2006-7-25 13053 Butte West edge of a large meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
  UC203816  Adenocaulon bicolor A. A. Heller 1917-7-26 12830 Butte Butte Meadows 1280 Comment
  SEINET10529974  Adiantum aleuticum Mary Susan Taylor 1976-5-5 Taylor 1117 Butte Abundant along or near in drier areas of Bear Creek, ca. 500 ft to 1/8 mi S of Hwy 70, ca. 30 mi NE of Oroville. Comment
  UC185198  Adiantum capillus-veneris Mrs. Carlotta C. Hall 1914-7-17 9754 Butte e Chico (Honeyrun Grade) 304 Comment
  POM120400  Adiantum jordanii R. M. Austin 1882-10 49 Butte Unspecified Comment
  UC42033  Adiantum jordanii Miss E. P. Patton Dec. 1879 Butte near Fall River Fall River Comment
  CHSC65209  Aegilops triuncialis Lowell Ahart 1995-5-30 7581 Butte South of Beatson Hollow, about 1/8 mile north of Cherokee Road, North Table Mountain, about 7 miles north of Oroville. 335 Comment
  RSA718339  Aegilops triuncialis L. Ahart 2006-6-9 12640 Butte Along the south side of the service road to Bardees Bar along the North Fork of the Feather River, about 50 yards east of the electric tower, on the east side of Highway 70, about 2 3/4 miles (air) southwest of Pulga. 535 Comment
  CHSC77486  Aesculus californica Anna Pinsky 1997-4-24 17 Butte Chico, Upper Bidwell Park, Salmon Hole, 100 ft. above Big Chico Creek, on grassy hill between large rock outcrops. Comment
  CHSC3137  Aesculus hippocastanum Gary Dutton 1966-4-13 204 Butte Found on C. S. C. north side of Add. Bld. Comment
  CHSC40548  Agoseris heterophylla Ahart-Jokerst 1985-3-24 4866 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
  UC1562421  Agoseris heterophylla var. heterophylla Lowell Ahart 1990-6-16 6509 Butte Just south of the Forbestown Generator, on the south side of the Forbestown Reservoir. 487 Comment
  CAS-BOT-BC13346  Agoseris retrorsa L. P. Janeway 1995-6-1 4767 Butte At the far western end of Jackson Ranch Ridge, about 0.9 mi ENE of the falls of Feather Falls. 1054 Comment
  CHSC111146  Agrostis avenacea Lowell Ahart 2012-6-5 18167 Butte On the strand of the reservoir, north of Beatson Hollow, about 1 3/4 miles northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 6 miles (air) north of Oroville. 295 Comment
  CHSC50567  Agrostis capillaris Vernon Oswald 1990-7-9 4357 Butte Paradise Lake, ca. 3 mi north of Magalia. 777 Comment
  CAS-BOT-BC127446  Agrostis elliottiana Lowell Ahart 1985-5-22 5028 Butte Along the edge of Bean Creek Road, about 0.5 mile southeast of Little Bald Rock. 1066 Comment
  CDA42905  Agrostis exarata L. Ahart 2012-6-21 18204 Butte On the south side of Big Chico Creek, about 200 yards east of the dam at Sycamore Pool, Lower Bidwell park, Chico. Comment
  CHSC42907  Agrostis exarata Lowell Ahart 1987-7-3 5765 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC51285  Agrostis exarata var. monolepis Lowell Ahart 1990-9-30 6608 Butte On the bottom of the East Fork of Canyon Creek, below the high water line of Lake Oroville, about 1/8 mile north-east of the Canyon Creek Bridge across Lake Oroville. 243 Comment
  CHSC41244  Agrostis hendersonii J. D. Jokerst; Linnea Hanson 1984-5-22 2026 Butte Common in granite-filled, vernally wet depressions and drainageways that drain Big Bald Rock. Comment
  CHSC43171  Agrostis idahoensis Robert Banchero 1981-7-18 601 Butte Ca 0.3 mi e of jct Jonesville Rd and Scotts-John Rd. 1749 Comment
  CHSC78354  Agrostis pallens Lowell Ahart 2000-6-27 8517 Butte Big Bald Rock, about 3 miles (air) east of Madrone Lake, about 12 miles (air) northeast of Oroville. 993 Comment
  UC1564744  Agrostis pallens V. Oswald and L. Ahart 1989-8-15 3947 Butte metavolcanic outcrop between High Lakes Rd and Carr Mine (ca 2 mi (air) e of Philbrook Reservoir) 1920 Comment
  CAS-BOT-BC138770  Agrostis scabra Lowell Ahart 1984-7-19 4738 Butte About 1.5 mile southeast of Bald Mountain, 0.75 mile west of Oak Point, about 4 miles northeast of Stirling City. 1500 Comment
  CAS-BOT-BC138771  Agrostis scabra A. A. Heller 1917-7-26 12847 Butte Butte Meadows. 1280 Comment
  UC815077  Agrostis scabra A. A. Heller 1917-7-26 12847 Butte Butte Meadows 1280 Comment
  CHSC94427  Agrostis stolonifera Lowell Ahart 2006-8-15 13185 Butte Bare shallow drainage, east part of a large meadow with bogs, 5 yards west of Willow Creek, about 100 yards southeast of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1569 Comment
  SEINET10510739  Agrostis tenuis Lowell Ahart 1988-9-4 Ahart 6179 Butte On damp rocky soil, on the bottom and sides of Big Kimshew Creek, the creek crosses a large meadow. about 1 air mile north-east of Jones Meadow. Uncommon. Mountain meadow in Red Fir Forest. Comment
  CAS-BOT-BC138412  Aira caryophyllea var. capillaris Lowell Ahart 1980-4-13 2079 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC76010  Alisma triviale Lowell Ahart; Vernon H. Oswald 1999-8-13 8138 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
  CHSC31406  Allium amplectens Jane A. Rogers 1979-4-17 15 Butte N roadside ca. 1 mi. w of intersection of Broyles Rd. and Hwy. 99E. 54 Comment
  UC1299745  Allium amplectens Freed W. Hoffman 1949-5-14 2805 Butte nw Oroville (summit of Table Mountain); Table Mountain Comment
  UCD80409  Allium amplectens CNPS SN Foothill Team 2005-4-13 SNFN 0078 a Butte City of Chico, Doe Mill Meadowfoam Preserve, at the east end of Warfield Street, on the east side of the creek diversion between the diversion and the creek, ~85 m south of the Preserve gate entrance. 82 Comment
  CAS-BOT-BC460743  Allium amplectens Robert A. Schlising; Marc Hayes 1978-5-22 3266 Butte N of Chico along Cohasset Hwy, 4.3 mi N of Mud Creek. Comment
  POM110210  Allium amplectens George B. Grant 1899-04 H 4775 Butte Clear Creek. Comment
  SEINET10839457  Allium amplectens Mary Susan Taylor 1975-6-30 Taylor 822 Butte Ca. 1/4 mi W of Cohasset Hwy, ca. 400 yds N of Greenwood Store, Cohasset; Yellow Pine Forest. 853 Comment
  SEINET10472029  Allium bolanderi Mary Susan Taylor 1982-5-2 Taylor 4391 Butte T23N R5E ne/ne sec 6. Pulga Sw quad. Pulga serpentine outcrops on both sides of bridge across Hwy 70 at Pulga, ca. 20 mi ne of Oroville. 1600 ft. 488 Comment
  CHSC115468  Allium hyalinum L. P. Janeway 2015-3-5 11634 Butte Sacramento Valley. North side of Thermalito Forebay, on the west side of Nelson Ave. 72 Comment
  POM252945  Allium membranaceum A. A. Heller 1938-5-28 15113 Butte On wooded slope in leaf mold on Feather River Highway 22 miles from Oroville. 610 Comment
  JEPS97586  Allium peninsulare R. D. Stone and W. B. Davilla 1984-4-20 591 Butte Canyon of North Fork Feather River Pulga (above intersection of CA Hwy. 70 and Camp Creek (Pulga) RD.; ca. 0.75 mi SSW of) 487 Comment
  CHSC77451  Allium peninsulare var. peninsulare Tim Stofer 1997-4-9 5 Butte Located on the east side of trail 100 yds from the shooting range of the South Rim Trail off South Park Dr. in upper Bidwell Park. 76 Comment
  SEINET10478563  Alnus incana subsp. tenuifolia Mary Susan Taylor 1981-5-13 Taylor 3698 A Butte 4500 ft. T23N R6E se sec 32, Pulga SE quad. In decomposed granite on E side of 23N15.5, ca. 1 mi S of its jct with Four Trees Rd, ca. 8 air mi E of Pulga and 0.5 mi W of Oroville-Quincy Hwy. 1372 Comment
  CDA5624  Alopecurus carolinianus L. Ahart 2005-4-14 11716 Butte About 200 feet east of the railroad tracks, north of Spruce Street, Gridley. Comment
  CHSC46605  Alopecurus pratensis Vernon H. Oswald 1989-7-18 3867 Butte Meadow at Butte Creek House, ca. 3.3 mi (air) se of Jonesville. 1767 Comment
  CAS-BOT-BC137940  Alopecurus saccatus Lowell Ahart 1980-5-10 2236 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CAS-BOT-BC137941  Alopecurus saccatus Lowell Ahart 1983-5-12 3978 Butte Sierra Nevada. About 0.5 mile northeast of Highway 99 and Pentz Road. 65 Comment
  SEINET10511193  Alopecurus saccatus Roland McKee 1909-1 McKee s.n. Butte Chico. Comment
  SEINET10511201  Alopecurus saccatus A. Arthur Heller 1902-5-3 Heller 5445 Butte Near Nelson. Comment
  CHSC28733  Amaranthus albus R. Schlising 1979-10-7 3496 Butte 0.9 mi s of Chico along Dayton Road. Comment
  JEPS124125  Amaranthus albus Lowell Ahart 2015-10-9 20540 Butte About 3/4 mile northwest of the intersection of Bull Hill Road, Skyway, and Humbug Road, about 4 miles (air) north of Inskip. Comment
  CHSC31526  Amaranthus blitoides L. Ahart 1978-7-23 1789 Butte Peter Ahart Ranch, Honcut. 50 Comment
  JEPS96093  Amaranthus blitoides Vernon H. Oswald and Lowell Ahart 1996-6-10 7751 Butte US Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. On the E side of Fish Camp, Riparian Sanctuary. 28 Comment
  JEPS106013  Amaranthus deflexus Lowell Ahart 2004-9-28 11404 Butte Fallow field, 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 (air) northeast of Durham, about 3 1/2 miles (air) southeast of Chico 57 Comment
  CHSC43596  Ambrosia artemisiifolia Vernon Oswald 1987-8-24 3223 Butte Skyway 0.4 mi SW of Toadtown (between DeSabla and Lovelock). 841 Comment
  CAS-BOT-BC142903  Amelanchier A. A. Heller 1939-4-26 15383 Butte Edge of thickets near the Feather River at the foot of the grade leading down from Stirling City Comment
  SEINET10483111  Amelanchier pallida Mary Susan Taylor 1978-7-19 Taylor 1746 Butte Cherry Hill Campground, on S side of Old Humboldt Road, ca. 2 mi SW of Jonesville. 1524 Comment
  JEPS95943  Ammannia coccinea Lowell Ahart 1999-8-13 8167 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
  JEPS104209  Ammannia robusta Lowell Ahart 2003-6-19 10294 Butte In a rice field, Peter Ahart Ranch, ca 300 yd e of the Palermo Honcut Highway, ca 2 1/8 mi n of Honcut, ca 12 mi south of Oroville. 30 Comment
  CHSC136  Amsinckia eastwoodiae E. Canfield 1904-4-9 Butte Hooker Oak field. 76 Comment
  JEPS119611  Amsinckia eastwoodiae Lowell Ahart 2012-4-9 17821 Butte Along South Rim Trail, about 100 yards north of the homes, south part of Upper Bidwell Park, about 1/4 mile east of the power lines, about 1 1/4 miles (air) northeast of Chico. Comment
  UC1178253  Amsinckia eastwoodiae Francia Chisaki with R. Bacigalupi and G. T. Robbins 1956-4-19 680 Butte western section of town near road above the gorge Paradise Comment
  CHSC2811  Amsinckia intermedia David Prall 1965-3-14 3 Butte Along side of Neal Rd. 1 mile east of Highway 99E. 106 Comment
  SEINET12326971  Amsinckia intermedia J. S. Adams 1980-1 5 Butte Horseshoe Lake, opposite Golf Course, Upper Bidwell Park, Chico 98 Comment
  CHSC109077  Amsinckia lycopsoides Lowell Ahart 2012-4-20 17889 Butte South of the trail, about 50 yards east of Big Chico Creek, about 100 yards west of Ten Mile House Road, about 3/4 mile west of Highway 32, about 9 miles northeast of Chico, south part of Upper Bidwell Park. 202 Comment
  CHSC116719  Anagallis arvensis Lowell Ahart 2016-5-24 20865 Butte On the bottom of a large drainage, about 50 yards north of the ditch, about 150 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. 44 Comment
  CHSC3828  Anagallis arvensis R. L. Adams 1964-4-13 61 Butte Roadside 3/4 mi. from junction Cohasset and Richardson Springs Rd. on S. side of road. Comment
  CHSC28609  Andropogon glomeratus var. scabriglumis M. S. Taylor 1977-11-12 1532 Butte N side of Diversion Dam area, n side of Upper Bidwell Park Rd. Comment
  CHSC38785  Andropogon virginicus var. virginicus Vernon Oswald 1983-9-25 1047 Butte Upper Bidwell Park, Chico, in Lindo Channel just upstream from the flood-control gates. 79 Comment
  CHSC42566  Angelica californica Vernon Oswald 1985-7-15 1902 Butte Ponderosa Way (Rim Rd.) 3.1 mi n of Hwy 70 at Jarbo Gap. 853 Comment
  CHSC43179  Antennaria rosea subsp. confinis Robert Banchero 1981-6-28 538 Butte White Table Mountain summit. 1877 Comment
  CHSC36168  Anthriscus caucalis G. H. Snodgrass 1981-4-11 PT- 12 Butte Ca. 5 mi e of Chico, ca. 200 yds e of Rockwood Lake entrance on Honeyrun Rd. (previously Humbug Rd.). Comment
  CHSC48969  Antirrhinum cornutum Vernon Oswald 1986-7-22 2216 Butte Hwy 32, 1.2 mi n of Chico Creek near the spring. 1097 Comment
  RSA505433  Antirrhinum cornutum R. C. Bacigalupi, Howard Whisler 1957-7-26 6041 Butte Along Humbug Road, 3.1 miles below and south of Nimshew. 366 Comment
  SEINET10964533  Antirrhinum leptaleum Lowell Ahart 1990-10-5 Ahart 6630 Butte Below the high water line of Lake Oroville, about 1/4 mile south-west of the Enterprise Bridge across Lake Oroville. Foothill Woodland (destroyed). T19N R6E NW/S7. 267 Comment
  CHSC84169  Antirrhinum vexillo-calyculatum subsp. intermedium Lowell Ahart 2003-7-10 10370 Butte On both sides of the dirt road to the power generator, on the north side of Ponderosa Reservoir, about 1 1/2 miles (air) east of the Ponderosa Dam. 331 Comment
  CHSC26725  Aphanes occidentalis M. S. Taylor; M. Hayes 1978-4-14 1549 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
  CHSC1170  Aphyllon purpureum V. Holt 1935-3-27 Butte Salmon Hole, Chico Creek. 152 Comment
  CHSC96833  Apocynum androsaemifolium Lowell Ahart 2007-5-29 13949 Butte On the south side of the Dome Trail, trail leads to the Middle Fork of the Feather River, at the trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Big Bald Rock, about 16 miles (air) northeast of Oroville. 844 Comment
  SEINET10455429  Apocynum pumilum var. rhomboideum Lowell Ahart 1985-6-17 Ahart 5047 Butte Fields Ridge, about 4 miles south-east of Feather Falls. Comment
  CAS-BOT-BC392115  Aquilegia formosa H. F. Copeland 1920-8-29 149 Butte Jonesville 1219 Comment
  UCR88769  Aquilegia formosa J. T. Howell 1951-8-19 28156 Butte Sierra Nevada Mtns., 2 miles west of Pulga 366 Comment
Read comments
Oct 10 2010
  CHSC52189  Aquilegia formosa var. truncata Kirsten Tarp 1983-7-22 296 Butte Ca. 2.0 mi. E of Brush Creek near Indian Creek. 856 Comment
  CHSC52190  Aquilegia formosa var. truncata Kirsten Tarp 1982-7-28 234 Butte Ca. 1.4 mi SE of Pulga. 804 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
  CHSC105816  Arceuthobium abietinum Lowell Ahart 2010-9-21 17197 Butte Near the top of a tree over 100 feet tall, tree was cut down for lumber, on the west side of the County Road, about 1/4 mile north of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1911 Comment
  CAS-BOT-BC407716  Arceuthobium abietinum Lowell Ahart 1987-10-8 5911 Butte about 1.25 miles S of the Lost Creek Reservoir 1066 Comment
  CHSC43229  Arceuthobium campylopodum Lowell Ahart 1987-9-18 5886 Butte About 1 mile southwest of the crossing across Fall River, about 1 mile north-east of Camp 18, north-east of Feather Falls. 1310 Comment
  CHSC19715  Arceuthobium occidentale Lowell Ahart 1974-11-4 670 Butte Pine tree was growing along the edge of Noth Honcut Creek. Peter Ahart Ranch, Honcut, Calif. 45 Comment
  CHSC33288  Arctostaphylos S. Posner; K. Stern 1972-9-24 1 Butte 200 yds south of Humbug Rd., 3 miles east of Skyway. Comment
  SEINET10848278 Image available Arctostaphylos laxiflora A. Arthur Heller 1940-2-6 Heller 15492 Butte Along the railroad near the Wagstaff road, Paradise. A variation form the type, collected nearby. Comment
  CAS-BOT-BC24433  Arctostaphylos manzanita Lowell Ahart 1975-3-30 s.n. Butte Near ne. corner of Peter Ahart Ranch. 45 Comment
  CHSC115454  Arctostaphylos manzanita M. Sutton; C. Yasuda, S. Luse 2013-3-5 7 Butte Ten mile house trail. 391 Comment
  RSA632993  Arctostaphylos manzanita Jon E. Keeley 1996-6-20 27452 Butte Approximately 1/2 km west of Cohasset. 570 Comment
  UCD52250  Arctostaphylos manzanita John Thomas Howell 1976-4-2 51567 Butte In Upper Sonoran Life Zone on volcanic rock; about 2 miles from Paradise on 'Skyway' to Chico. 396 Comment
  SEINET10841467  Arctostaphylos manzanita Mary Susan Taylor, E. Pierce 1981-1-29 Taylor 3374 Butte Both sides of Cohasset Hwy, ca. 3 mi s of Cohasset. Chaparral. Comment
  CAS-BOT-BC24410  Arctostaphylos manzanita subsp. manzanita John Thomas Howell 1976-4-2 51568 Butte About 2 mi. from Paradise on Skyway to Chico. 396 Comment
  CAS-BOT-BC38863  Arctostaphylos manzanita subsp. manzanita A. A. Heller 1928-1-17 14473 Butte About a mile west of the Ten Mile House east of Chico in the digger pine belt. Comment
  RSA178612  Arctostaphylos manzanita subsp. manzanita A. A. Heller 1928-1-17 14473 Butte About a mile below the Ten Mile House east of Chico. Comment
  RSA31987  Arctostaphylos mewukka A. A. Heller 1942-1-4 16348 Butte Neal Road west of Optimo Lodge. Comment
  UC1303073  Arctostaphylos mewukka A. A. Heller 1928-2-22 14776 Butte near Forest Ranch Comment
  UC726639  Arctostaphylos mewukka A. A. Heller 1942-1-29 16359 Butte on Hwy 32 near Lone Pine Forestry Station (14 mi e of Chico) Comment
  CAS-BOT-BC38564  Arctostaphylos mewukka subsp. truei John Thomas Howell 1976-4-2 51569 Butte Paradise. 609 Comment
  CAS-BOT-BC38605  Arctostaphylos mewukka subsp. truei Wayne Roderick 1981-7-19 s.n. Butte 3 miles n.e. of Magalia Comment
  CHSC11941  Arctostaphylos nevadensis E. B. Copeland 1930-7-6 437 Butte Above Jonesville. 2050 Comment
  CHSC26697  Arctostaphylos patula subsp. patula M. S. Taylor; M. Hayes, R. Schlising 1977-8-17 1473 Butte On both sides of Old Humboldt Rd, ca. 3 mi E of its jct with Scotts John Rd, N of Jonesville. 1828 Comment
  RSA584780  Arctostaphylos truei J. T. Howell 1976-7-14 51817 Butte Just northeast of Pulga Bridge. 418 Comment
  UCD52634  Arctostaphylos viscida M. S. Taylor; T. 1981-11-11 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. 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-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
  CHSC37649  Arctostaphylos viscida subsp. viscida T. B. Devine 1981-8-25 750 Butte Along Durham-Pentz Road, at its junction with Pentz-Magalia Hwy. 205 Comment
  CHSC82658  Arctostaphylos viscida subsp. viscida Tara Morgan 2002-3-1 1 Butte In the Big Chico Creek watershed on the slope right off of Highway 32 towards Forest Ranch. 533 Comment
  CHSC78553  Aristida dichotoma Lowell Ahart; Vernon H. Oswald 2000-8-5 8624 Butte Above seeps on bare granite, on the north side of Bean Creek Road, about 1/4 mile southeast of Little Bald Rock, about 4 miles (air) northeast of Madrone Lake, about 13 miles (air) northeast of Oroville. 1066 Comment
  UC569953  Aristida oligantha H. A. Jensen 1933-11-28 367 Butte 2 1/2 mi s Wyandotte; Smartsville Quadrangle 152 Comment
  SEINET8521978  Aristida oligantha Kelly W. Allred 1991-1 5478 Butte along hwy 70, about 8 air miles north of Oroville, 1 mile northeast of Wheelock Road, annual valley grassland with scattered oaks 160 Comment
  CAS-BOT-BC146313  Aristida ternipes var. gentilis J. D. Jokerst 1985-11-6 2590 Butte South of the unnamed creek (first canyon south of Big Chico Creek, future site of Canyon Oaks development), due east of city of Chico. 121 Comment
  CHSC38262  Aristolochia californica Vernon Oswald 1983-3-4 107 Butte Upper Bidwell Park. Brush beside Upper Park Rd. at the power lines. 97 Comment
  UC176145  Aristolochia californica A. A. Heller 1913-3-9 10687 Butte hills 2 mi. n. of Oroville Comment
  CAS-BOT-BC82110  Arnica chamissonis A. A. Heller 1928-7-25 14701 Butte Butte Creek House Comment
  UC832874  Arnica dealbata A. A. Heller 1914-6-22 11505 Butte edge of the forest about Chico Meadows Chico Meadows 1219 Comment
  CAS-BOT-BC90290  Artemisia douglasiana John Thomas Howell 1961-9-22 36721 Butte Bank of Feather River, Oroville 53 Comment
  CHSC76398  Artemisia douglasiana Lowell Ahart; Vernon H. Oswald 1999-10-3 8292 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
  CHSC94973  Artemisia douglasiana Lowell Ahart 2006-10-12 13502 Butte On the west side of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 mile north and 2 3/4 miles east of Honcut, about 12 miles southeast of Oroville. 59 Comment
  JEPS118287  Asclepias fascicularis Lowell Ahart 2011-8-17 17629 Butte About 100 yards west of the table at the old homestead and southwest of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 239 Comment
  CHSC44365  Asclepias speciosa Lowell Ahart 1988-6-29 6112 Butte Along Bean Creek Road, near camping area along Bean Creek, about 3/4 mile south-west of Johnson Ranch, about 2 1/4 miles south of Little Bald Rock. 548 Comment
  JEPS120898  Asclepias speciosa Lowell Ahart 2013-6-11 18799 Butte About 10 yards N of the Forbestown Road, about 150 yards E of the intersection of Forbestown Road and Black Bart Road, about 3.25 air miles SW of Forbestown. Comment
  HSC66083  Aspidotis californica M. S. Taylor 1980-3-19 2393 Butte Embankment of Macabes Cr. 100 ft. E of Lumpkin Rd. 2.5 mi. N of its jct. with Forbestown Rd.18 mi. NE of Oroville 396 Comment
  CHSC11795  Aspidotis densa E. B. Copeland 1929-7-13 328 Butte Jonesville. 1700 Comment
  POM196124  Aspidotis densa E. B. Copeland 1929-7-13 328 Butte Jonesville 1700 Comment
  POM55205  Aster radulinus Kate Conger 1907-1 151 Butte Brush Creek. Comment
  CAS-BOT-BC178463  Astragalus gambelianus Lowell Ahart 1985-5-10 4940 Butte Along the edge of the Cherokee Road, north of where the public parks, about 5 miels north of Oroville. 450 Comment
  CHSC45902  Astragalus gambelianus Lowell Ahart; Jim Jokerst 1985-3-24 4851 Butte Serpentine Point, west of Yankee Hill. 518 Comment
  CHSC90942  Astragalus gambelianus Lowell Ahart 2005-4-18 11732 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
  JEPS119691  Astragalus gambelianus Lowell Ahart 2012-5-2 17957 Butte About 80 yards northeast to the oak tree, Upper Bidwell Park, about 1 mile east of Chico. Comment
  JEPS119766  Astragalus gambelianus Lowell Ahart 2012-5-12 18040 Butte Humboldt Trail, about 1/10 mile west of Highway 32, south part of Upper Bidwell Park, about 7 1/2 miles (air) northeast of Chico. Comment
  SEINET12164073  Astragalus gambelianus Unknown 1979-1 1 Butte S Side of Skyway, ca 4mi W of Paradise 305 Comment
  SEINET7042706  Astragalus gambelianus A. G. Vestal 1963-5-9 s.n. Butte Route 99E 11.8 miles north of Chico. Nelson quadrangle UTM Zone 10, 605211mE, 4382252mN. Comment
  CAS-BOT-BC192799  Astragalus pauperculus A. A. Heller 1914-4-13 11286 Butte Chico-Oroville road 11 miles from Chico Comment
  CHSC43882  Astragalus pauperculus L. P. Janeway 1988-5-8 2661 Butte Ridge between hwy 32 and the piece of old road that connects to Crown Point Drive, 2 mi north of Ten Mile House. 594 Comment
  CHSC2446  Asyneuma prenanthoides R. Carter 1965-7-6 276 Butte Found 1.4 mi. N of Mountain House on Oroville-Quincy Rd. on E bank above road. 914 Comment
  CHSC100123  Athyrium filix-femina var. cyclosorum L. P. Janeway 2008-8-10 9537 Butte Northern High Sierra Nevada. Along Four Trees Road at crossing of South Branch Mill Creek, 4.5 road km east-southeast of Hwy 70. Along moist roadside gutter. 823 Comment
  CHSC36961  Athyrium filix-femina var. cyclosorum M. S. Taylor 1982-8-16 5003 Butte Jct small creek and rd in High Rock Ravine, just s of Discovery Creek, ca. 4 air mi ne of Stirling City. 1463 Comment
  UC399384  Athyrium filix-femina var. cyclosorum Mrs. R. M. Austin July 1896 811 Butte Colby 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
  JEPS90589  Atriplex minuscula 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, ca. 1.5 mi e of refuge headquarters); Sacramento Valley, Pennington 7.5' USGS 21 Comment
  JEPS108754  Atriplex prostrata Lowell Ahart 2006-10-8 13431 Butte Mud flat, near a large gravel bar, east side of the North Fork of the Feather River, just east of where the river flows into a pool, on the west side of Highway 70, about 1/2 mile north of the Cresta Power House 609 Comment
  CAS-BOT-BC311784  Atriplex serenana Lowell Ahart 1981-11-6 3218 Butte Gray Lodge, south-west 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
  CHSC34170  Atriplex triangularis L. Ahart 1981-9-10 3146 Butte On wet soil along the edge of a ditch near entrance to Graylodge Waterfowl Mgmt HQ, w of Pennington Rd, ca. 12 mi sw of Gridley. 35 Comment
  CHSC2120  Avena barbata H. Silberman 1949-9-17 Butte N. side Golf Course, Chico. 76 Comment
  CHSC38788  Avena barbata Vernon Oswald 1982-12-19 29 Butte Bidwell Park, Chico, on the north rim ca 1 mi e of the power lines. 335 Comment
  CHSC41558  Avena barbata R. L. Ondricek-Fallscheer 1982-5-26 138 Butte At sw end of Flatiron Ridge, ca. 3 1/2 mi wsw of Paradise. 192 Comment
  CHSC92531  Avena barbata Lowell Ahart 2005-12-11 12514 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
  JEPS116047  Avena barbata Lowell Ahart 2009-4-17 15552 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
  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
  UC1101613  Azolla microphylla Herbert L. Mason and Verne Grant 1946-8-14 13018 Butte canal near big pond on Sacramento Outing Club Butte Sink Comment
  CAS-BOT-BC98621  Baccharis pilularis unspecified 1929-11-1 s.n. Butte Cultivated at Chico U.S. Experimental Station Comment
  CDA10378  Baccharis pilularis L. Ahart 2000-11-4 8715 Butte On the east side of Highway 70, about 50 yards south of Rich Gulch Road, about 1 mile north of the West Branch Bridge across Lake Oroville, about 5 miles (air) southeast of Paradise. Comment
  UC57396  Baccharis salicifolia subsp. salicifolia H. E. Brown 1896-10-2 120 Butte near Oroville 53 Comment
  RSA276695  Bacopa repens J. M. Tucker 1953-8-28 2684 Butte Biggs Rice Experiment Station Comment
  CHSC50099  Balsamorhiza sagittata Vernon Oswald 1990-5-12 4203 Butte Jonesville-Butte Creek House Trail, along the section between Scotts John Creek and Willow Creek. 1676 Comment
  SEINET10839234  Balsamorhiza sagittata Mary Susan Taylor 1978-7-19 Taylor 1770 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
  CAS-BOT-BC16378  Barbarea orthoceras Clarence Roy Quick 1963-7-16 63 48 a Butte Sierra Nevada. Feather River Canyon. Section Corner Meadow, east of Pulga. 1463 Comment
  CHSC21365  Berberis aquifolium M. S. Taylor 1975-4-8 454 Butte N side of Chemistry Bldg, California State University, Chico. 60 Comment
  CHSC20531  Berberis aquifolium var. repens Pamela Caldwell 1972-3-2 Butte CSUC campus. S side of Bidwell Mansion entrance. Comment
  CAS-BOT-BC75545  Berberis dictyota A. A. Heller 1928-3-2 14479 Butte Along Chico Creek east of Chico above the golf links. Comment
  CHSC28459  Bergia texana R. A. Schlising 1979-10-14 3507 Butte Along Sacramento River w of Chico, just n of Chico Landing Site in Bidwell River State Park. 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
  HSC93350  Bergia texana L. Ahart 1995-7-15 7594 Butte Small wash, Peter Ahart Ranch, 1.5 mi. N and 0.75 mi. E of Honcut, 12 mi. S of Oroville 37 Comment
  JEPS110125  Bidens frondosa Lowell Ahart 2006-9-28 13363 Butte On the east side of the North Fork of the Feather River, on the west side of Highway 70, about 50 yards southwest of the Shady Rest Area south of the Arch Rock Tunnel 445 Comment
  CAS-BOT-BC412955  Bistorta bistortoides Vesta Holt 1932-5-1 s.n. Butte Mountains near Chico Comment
  SEINET10474476  Blennosperma nanum Mary Susan Taylor 1973-1 Taylor 62 Butte Upper Bidwell Park, Chico. Associates: Stipa pulchra, Lasthenia chrysostoma, Layia fremontii. 61 Comment
  CHSC29740  Boechera breweri subsp. shastaensis J. D. Jokerst 1980-4-17 588 Butte Top of North Table Mt, cliffs at the northern edge. 472 Comment
  SD1978  Boechera rectissima E. B. Copeland 1929-7-14 Butte Jonesville 1550 Comment
  SEINET10973128  Boisduvalia glabella Mary Susan Taylor 1980-7-6 Taylor 3054 Butte T23N R1E nw sec 20, Richardson Springs quad; ca. 1 mi E of Meridian Rd, ca. 1/4 mi NE of its jct with Hwy 99, ca. 8 mi N of Chico. With R.A. Schlising. 67 Comment
  UCD140017  Bolboschoenus maritimus subsp. paludosus Lowell Ahart 1981-11-6 3226 Butte Gray Lodge, south-west of Gridley. 35 Comment
  UC955483  Botrychium multifidum Mrs. Carlotta C. Hall 1914-7-25 9780 Butte Jonesville 1554 Comment
  CHSC69114  Boykinia major Lowell Ahart 1997-8-1 7796 Butte At the bottom of Little Kimshew Creek, about 1/4 mile east of Table Mountain, about 8 miles (air) northeast of Stirling City. 1371 Comment
  CHSC68550  Brachypodium distachyon Lowell Ahart 1997-5-18 7740 Butte Clear Creek, south of the hay barn, Butte Junior College. 76 Comment
  SEINET10448436  Brassica geniculata Lowell Ahart 1985-7-24 Ahart 5157 Butte At the Generator, at the Forbestown Res., about 4 1/2 miles north-east of Forbestown. Comment
  CHSC80540  Brassica napus Lowell Ahart 2001-5-10 8739 Butte On the sides of the dirt road east of the large pump, on the south side of Evans-Reimer Road, about 1 mile east of Pennington Road, Gray Lodge Waterfowl Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  CHSC4029  Brassica rapa Sadie Gualtieri 1967-3-13 Butte Collected: Chico State College in a field parking lot behind Humanities Building on corner 2nd. St., N. side. Comment
  RSA755005  Briza minor L. Ahart 2009-5-23 15729 Butte East side of Ten Mile House Road, Upper Bidwell Park, about 3/4 air mile west of Highway 32, about 10 miles northeast of Chico. 236 Comment
  CAS-BOT-BC482926  Brodiaea elegans subsp. elegans A. A. Heller 1913-6-4 10770 Butte Table Mountain Olive Ranch north of Oroville Comment
  CHSC29094  Brodiaea minor M. S. Taylor; J. D. Jokerst 1980-5-15 2620 Butte Ca. 1/2 mi e of Cohasset Rd, ca. 3 mi n of Chico. 91 Comment
  HSC31885  Brodiaea minor R. A. Vanbianchi 1974-4-20 217 Butte 300 yds. S of intersection of Pentz and Clark Rds. Comment
  HSC32394  Brodiaea minor Gary S. Lester 1974-4-20 99 Butte 1 mi. E of Hwy. 99, Skyway Blvd. 61 Comment
  SEINET10534141  Brodiaea purdyi Lincoln Constance 1941-5-28 Constance 2825 Butte Three miles southwest of Paradise, Sierra Nevada foothills. Thin gravelly soil of open flat, with Linanthus, Polygonum, Lotus and Godetia, Quercus douglasii-Pinus douglasii-Pinus sabiniana belt, 1000 feet. Comment
  CAS-BOT-BC486487  Brodiaea sierrae Lowell Ahart 1983-6-21 4081 Butte Along Bloomer Hill Road, about 3/4 mile west of the Oroville Quincy Highway, about 15 miles north-east of Oroville. 425 Comment
  CHSC31701  Bromus diandrus L. Ahart 1975-5-12 761 Butte Along North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC4414  Bromus diandrus J. Francis 1966-5-18 Butte On perimeter of pond n of golf course, Bidwell Park. Chico. Comment
  JEPS115958  Bromus diandrus Lowell Ahart 2009-4-26 15611 Butte About 10 miles northeast of Chico, Upper Bidwell Park, on the west side of Highway 32, west of the parking area at the intersection of Highway 32 and Ten Mile House Road 461 Comment
  CHSC101667  Bromus hordeaceus Lowell Ahart 2009-4-26 15638 Butte On the west side of Guardians Trail, just south of Pine Trail, Upper Bidwell Park, about 3/8 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  JEPS115956  Bromus hordeaceus Lowell Ahart 2009-4-26 15638 Butte On the west side of Guardians Trail, just south of Pine Trail, Upper Bidwell Park, about 3/8 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  JEPS119865  Bromus hordeaceus Lowell Ahart 2012-5-14 18046 Butte A little east of Table 7, on the south side of Big Chico Creek, north of the paved road, northeast of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CHSC61531  Bromus laevipes Lowell Ahart 1993-6-16 6967 Butte Along a dirt road, south-west of the intersection of Black Bart Road and Forbestown Road, about 3 1/2 (air) miles south-west of Forbestown. 609 Comment
  SEINET10507836  Bromus laevipes Lowell Ahart 1985-5-15 Ahart 4987 Butte East of the dirt road, about 1 1/2 miles north-east of Concow Reservoir. north-east of Oroville. Comment
  SEINET10520260  Bromus laevipes Lowell Ahart 1982-9-13 Ahart 3806 Butte On damp soil along edges of small wash that flows into Pinkard Creek, ca. 1/8 mi N of Lost Creek Reservoir Dam, ca. 2.2 mi NW of Strawberry Valley. Scattered, not common. Yellow Pine Forest. 1100 Comment
  CAS-BOT-BC162360  Bromus madritensis Lowell Ahart 1983-6-21 4078 Butte Along Bloomer Hill Road, ca. 0.75 mile west of the Oroville Quincy Highway, ca. 15 mile northeast of Oroville. 425 Comment
  CAS-BOT-BC162361  Bromus madritensis Lowell Ahart 1980-8-2 2522 Butte Humboldt Peak. 2300 Comment
  CHSC75328  Bromus madritensis subsp. madritensis Lowell Ahart 1999-5-24 8078 Butte Along the sides of the museum, Butte County Historical Society museum, 2335 Baldwin Avenue, Oroville. 60 Comment
  CHSC75427  Bromus madritensis subsp. rubens Jennifer Slater 1997-4-27 41 Butte At the Wurlitzer addition of the Vina Plains Preserve, west of Highway 99, approx. 10 miles north of Chico. 67 Comment
  UCD59073  Bromus orcuttianus H. F. Copeland 1930-7-21 s.n. Butte Jonesville. By Butte Creek. 1524 Comment
  SEINET3450781  Bromus tectorum Unknown 2003-5-9 10120 Butte Gridley, Gridley, about 3 miles by air southwest, on the south side of Evans Reimer road, about 0.75 miles west of Block Road 20 Comment
  SEINET10843220  Bromus villosus A. Arthur Heller 1914-4-11 Heller 11280 Butte Hills 8 miles north of Oroville. Comment
  UC1609481  Bulbostylis capillaris Lowell Ahart 1993-7-29 7117 Butte 2.5 mi ne Bald Mountain (about 6.5 mi ne of Stirling City) 1584 Comment
  CHSC31419  Calocedrus decurrens L. Ahart 1980-9-10 2623 Butte Along the edge of Bean Creek Rd, ca. 1 mi se of Little Bald Rock, ne of Oroville. 335 Comment
  CHSC3242  Calocedrus decurrens Virginia Hagaman 1966-2-23 22 Butte Chico State College campus. Comment
  NY43613  Calocedrus decurrens S. Bianco 1995-11-9 1051 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
  UC478559  Calocedrus decurrens E. B. Copeland 1931-7-28 603 Butte on ridge w of North Willow Creek Jonesville 1650 Comment
  CHSC7125  Calochortus albus James M. Watson 1969-4-23 10 Butte 1 mi ne of Oroville on Cherokee Road. 304 Comment
  CHSC20263  Calochortus luteus Linda Homze 1972-4-24 6 Butte Collected at Salmon Hole in upper Bidwell Park. Comment
  CAS-BOT-BC491856  Calochortus luteus Carl B. Wolf 1937-5-18 2820 Butte Northern Sierra Nevada Foothills, 11 mi. below Magalia on Oroville Road 152 Comment
  POM109677  Calochortus luteus C. C. Bruce 1897-04 2119 Butte Little Chico Comment
  CAS-BOT-BC492563  Calochortus minimus H. F. Copeland 1920-7-11 69 Butte Scitch John meadows 1828 Comment
  CHSC11053  Calochortus monophyllus Lowell Ahart 1966-3-13 Butte Near Enterprise. 182 Comment
  CHSC67408  Calochortus monophyllus James D. Jokerst; R. A. Schlising 1985-4-8 2214 Butte Serpentine Point W of and adjacent to Hwy. 70 ca. 0.5 mi S of Lunt Rd. 548 Comment
  CHSC84919  Calochortus monophyllus Janice Morris 1995-4-24 91 Butte Ca. 1/2 mi. s of Mud Creek, 1/2 mi e of Richardson Springs Resort. 304 Comment
  CHSC90197  Calochortus monophyllus S. M. Fleshman 1989-5-1 20 Butte Ca. 1 mi se of junct. of Cohasset and Vilas roads ca. 12 mi e of Chico. 579 Comment
  CHSC90226  Calochortus monophyllus Eric M. Haney 1989-4-23 18 Butte Found on w side of Hwy 32, ca. 2 km n of Forest Ranch. Comment
  SEINET7067153  Calochortus monophyllus A. G. Vestal 1947-4-30 s.n. Butte Along the road to Cherokee. Coordinate datum: NAD27. UTM Zone 10, 626283mE, 4388764mN. Comment
  SEINET12048524  Calochortus monophyllus G. C. Russell 1975-1 1 Butte 8.2 km NE of Chico Municipal Airport 325 Comment
  CAS-BOT-BC493345  Calochortus superbus Lowell Ahart 1989-5-28 6297 Butte South of Oregon Gulch Road, about 1/2 mile north of the Cementery, about 1 1/4 miles west of Rocky Point, 335 Comment
  UC725931  Calochortus tolmiei A. A. Heller 1919-5-18 13168 Butte Stirling 1074 Comment
  UC600484  Caltha biflora E. B. Copeland June, 1930 Butte Willow Creek Meadow Jonesville. 1550 Comment
  CAS-BOT-BC273293  Calycadenia fremontii H. M. Hall 1930-8-11 12875 Butte Humboldt Road, 8.2 miles from Chico 381 Comment
  CHSC34157  Calycadenia multiglandulosa Lowell Ahart 1981-8-31 3052 Butte S of the jct of Black Bart Rd and Oroville-Forbestown Rd, ca. 10 mi W of Forbestown. 750 Comment
  CHSC97005  Calycadenia multiglandulosa B. Castro; L. P. Janeway 2005-6-5 1481 Butte Ca 6 air mi SE of Chico, in bottom of canyon SE of Neal Rd, ca 100 ft nw of intermittent creek. 85 Comment
  CAS-BOT-BC106086  Calycadenia oppositifolia David D. Keck 1933-5-31 2411 Butte 4.3 miles N. of Chico on Richardson Springs Road. Comment
  CHSC29833  Calycadenia oppositifolia M. S. Taylor; R. S. Schlising, L. Ahart 1980-5-31 2753 Butte Kunkle Reservoir, on E side of Pentz-Magalia Hwy, ca. 3 mi S of Paradise. 441 Comment
  CHSC44368  Calycadenia oppositifolia Lowell Ahart 1988-5-30 6033 Butte Along Poe Power House Road, about 1/10 mile north of the Feather River, about 2 miles south-east of Jarbo Gap. 365 Comment
  CHSC45089  Calycadenia oppositifolia L. P. Janeway 1988-6-14 2759 Butte Little Chico Cr ca 1 3/4 air mi S of Ten Mile House, along the road to Doe Mill Ridge. NW-facing slope on SE side of cyn. 274 Comment
  CHSC45090  Calycadenia oppositifolia L. P. Janeway 1988-6-19 2815 Butte Ca 100 ft (elev.) above Honey Run Rd, 2.6 mi from Humbug Rd, and near powerlines (3-wire, wooden pole). 243 Comment
  JEPS107874  Calycadenia oppositifolia Lowell Ahart 2005-7-12 12136 Butte On the west side of Encina Grade Road (Bloomer Hill Road), about 2 miles (air) southeast of Bloomer Hill, about 2 miles west of Oroville Quincy Highway 623 Comment
  POM53155  Calycadenia oppositifolia A. A. Heller, Brown 1902-5-9 s.n. Butte Berry Canyon (near Clear Creek) from type region Comment
  UCD129787  Calycadenia oppositifolia G. F. Hrusa 1997-7-3 14010 Butte Little Butte Creek, north of Magalia. Immediately east of Holmwood Drive. 725 Comment
  CHSC30937  Calycadenia spicata L. Ahart 1980-7-4 2447 Butte SE of the jct of Nelson Ave and 20th St. in Thermalito. 65 Comment
  SEINET10904846  Calycadenia spicata Mary Susan Taylor 1977-8-16 Taylor 1436 Butte Abundant in Valley Grassland, near cul vert in natural drainage, ca. 1.2 mi E of junction of Pentz Road and Hwy 99, ca. 15 mi S of Chico. 61 Comment
  UCD80045  Calycadenia truncata CNPS SN Foothill Team 2005-5-26 SNFN 0171 b Butte City of Chico, Upper Bidwell Park, accessed from Hwy 32 on the east side of the park. The plot is located off of Humboldt trail, approximately 100 m after the trail begins to descend from the top of the plateau. 402 Comment
  SDSU6419  Calycadenia truncata D. F. Howe 1960-9-20 2981 Butte Feather River Canyon, 8 miles from Oroville. 152 Comment
  UCD129875  Calycadenia truncata Gerald D. Carr 1971-6-15 562 Butte 0.4 miles west of east boundary of Upper Bidwell Park, SE of Chico. 171 Comment
  CAS-BOT-BC275386  Calycadenia truncata var. truncata John Thomas Howell 1951-6-26 27506 Butte Feather River Canyon 198 Comment
  CAS-BOT-BC90919  Calycanthus occidentalis Lowell Ahart 1983-6-26 4104 Butte About 1/8 mile east of the intersection of the Oroville Quincy Highway and Ponderosa Way. 500 Comment
  CDA13915  Calycanthus occidentalis G. F. Hrusa, T. D. Wilfred 1997-7-3 13982 Butte Sierra Nevada; Above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. Comment
  SEINET12096302  Calycanthus occidentalis M. S. Taylor, Oswald, V. 1985-1 5509 Butte Along Four Trees Road between Hwy 70 and Coyote Gap, ca 25 air mi NE of Oroville Comment
  CHSC95077  Calystegia atriplicifolia subsp. buttensis L. P. Janeway 2006-6-25 8695 Butte Northern High Sierra Nevada/High Cascade Range. 1.1 km north of De Sabla Reservoir, where Ponderosa Way (Understock Road) crosses the confluence of Butte Creek and Hendricks Canal. Along edge of the canal bank. 847 Comment
  CHSC46785  Calystegia occidentalis M. S. Taylor 1982-6-24 4735 Butte At end of spur rd along Flea Mt Ridge, ca. 1.5 mi of Flea Mt., ca. 9 mi ne of Jarbo Gap on Hwy 70. 1066 Comment
  JEPS95023  Calystegia occidentalis subsp. occidentalis Lowell Ahart 1997-7-11 7751 Butte about 2 air mi ne of Stirling City (s side of dirt road, se of Cold Creek, about 2 air mi sw of Bald Mountain, about 9 mi by road from Stirling City) 1219 Comment
  CHSC42808  Camassia quamash subsp. quamash L. P. Janeway 1987-7-5 2437 Butte 1.0 mi SW of Jones Mdw along the Concow Rd, then 0.4 mi E on a spur rd. 1798 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
  POM32729  Camissonia graciliflora Kate Conger 1905-1 s.n. Butte Brush Creek Comment
  SEINET10462920  Campanula prenanthoides Edwin B. Copel 1930-8-4 Copeland 482 Butte JONESVILLE, SOIL EXPOSED BY SLIDE, IN SHADE 1500 Comment
  SEINET10463111  Campanula prenanthoides Johannsen 1936-7-28 JOHANNSEN 967 Butte 2.25 MI N OF JUNCT. BUTTE & SECRET CREEKS. T25N R3E SEC 12 PAYNES CREEK QUAD 1280 Comment
  CHSC112203  Capsella bursa-pastoris Lowell Ahart 2013-4-20 18556 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
  CHSC19927  Capsella bursa-pastoris M. S. Taylor 1975-3-3 399 Butte Ca. 30 ft e of Richardson Springs Rd, ca. 2 mi ne of Cohasset Rd, ca. 6 mi n of Chico. 60 Comment
  CHSC35025  Capsella bursa-pastoris R. E. Preston 1982-3-27 206 Butte Along dirt road; Campbell Hills, n of Thermalito Afterbay, Oroville. In saddle. 121 Comment
  CHSC35028  Capsella bursa-pastoris Linyi Maslin 1981-2-25 3 Butte Upper Bidwell Park near Horseshoe Lake, Chico. 72 Comment
  JEPS103602  Capsella bursa-pastoris Lowell Ahart 2002-3-2 9415 Butte Along the sides of a dirt road by a rice field, W of the Midway, ca 1 mile N of Richvale. 30 Comment
  JEPS119515  Capsella bursa-pastoris Lowell Ahart 2012-3-2 17766 Butte About 100 yards west of Guardian Trail, about 1/2 mile west of Highway 32, about 7 1/2 miles northeast of Chico. Comment
  UC1609210  Cardamine oligosperma Vernon H. Oswald and Lowell Ahart 1993-3-24 5246 Butte n. of historical site of Pentz (on e. side of a secondary drainage entering Dry Creek 2 mi n. of Pentz Rd., e. side Dry Creek Canyon); Dry Creek Canyon, drainage entering Dry Creek 262 Comment
  CAS-BOT-BC37880  Cardamine oligosperma Lowell Ahart 1973-2-21 s.n. Butte Sutter Buttes Region. Peter Ahart Ranch, Honcut. 150 Comment
  SEINET10448559  Cardamine oligosperma Mary Susan Taylor 1979-3-31 Taylor 1966 Butte On property belonging to Deanne Lickey; along Ishi Trail Road, ca. 0.5 mi NE of Concow Road and Lake Concow, ca. 25 mi N of Oroville; Yellow Pine Forest; granite soils. 671 Comment
  SEINET10448560  Cardamine oligosperma Mary Susan Taylor 1981-4-5 Taylor 3498 Butte T21N R4E ne sec 14; Berry Creek quad. At end of Dark Canyon Rd at turnout near restroom, ca. 3.5 mi s of Big Bend Rds, ca. 5 air mi s of Jarbo Gap on Hwy 70, n of Oroville. Foothill Woodland; 1000 ft. 305 Comment
  SEINET10973517  Cardamine oligosperma Mary Susan Taylor 1980-3-1 Taylor 2342 Butte T21N R2E se sec 11. Among rocky outcrops on n-facing bluffs overlooking Nance Canyon, ca. 1/4 mi N of Neal Road, ca. 3 mi E of its jct with Hwy 99, ca. 7 mi S of Chico. 122 Comment
  CHSC27943  Cardamine pachystigma var. dissectifolia M. S. Taylor 1979-3-20 1946 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
  CHSC34523  Cardamine pachystigma var. dissectifolia R. E. Preston 1981-3-27 49 Butte Ca. 50 m e of Coutelenc Rd, 320 m n of its jct with the Skyway, Magalia. 700 Comment
  CDA42896  Carduus pycnocephalus subsp. pycnocephalus L. Ahart 2012-6-5 18172 Butte Along the poor dirt road, on the south side of Beatson Hollow, about 3/4 mile northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 6 miles (air) north of Oroville. Comment
  JEPS117697  Carex Lowell Ahart 2010-9-21 17204 Butte Open meadow like area in red fir forest, about 70 yards east of the poor dirt road, about 80 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir 1917 Comment
  SEINET260322  Carex Lowell Ahart 1988-4-15 5960 Butte P. Ahart Ranch ca 1.5 mi N and 1 mi E of Honcut ca 12 mi S of Oroville 37 Comment
  JEPS110198  Carex amplifolia Lowell Ahart 2006-7-16 12968 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
  NY25690  Carex amplifolia H. M. Hall 1914-7-25 9782 Butte Jonesville 1554.5 Comment
  SEINET7468090 Image available Carex amplifolia Robert F. C. Naczi, Anton A. Reznicek 2006-8-1 11399 Butte Jonesville, along Jones Creek, just NE of the historic Jonesville Inn 1535 Comment
  CAS-BOT-BC17906  Carex angustata L. P. Janeway 1988-6-25 2896 Butte Meadow adjacent to Bull Hill Road 2.6 miles from the Skyway. 1508 Comment
  JEPS105638  Carex angustata L. P. Janeway 2003-6-8 7823 Butte High Cascade Range. Flea Valley: meadow at head of Concow Creek 1091 Comment
  CAS-BOT-BC17975  Carex aquatilis J. D. Jokerst; R. A. Schlising 1982-6-4 1590 Butte Along the edges of Concow Creek at its headwaters. South of and adjacent to Flea Valley. 1097 Comment
  CAS-BOT-BC18050  Carex athrostachya L. P. Janeway; C. A. Janeway 1986-8-31 1813 Butte Northeast side of Philbrook Reservoir at PG&E picnic area. 1691 Comment
  CHSC113504  Carex aurea Lowell Ahart 2014-7-16 19677 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
  SD130961  Carex aurea Lowell Ahart 1981-8-15 3046 Butte Sierra Nevada; southeast of Snag Lake (about 3 miles south of Jonesville); 1 mile east of Coon Hollow Road. 1500 Comment
  SEINET10585654  Carex aurea Edwin B. Copel 1930-6-23 Copeland 608 Butte Jonesville. In wet meadows. 1500 Comment
  CAS-BOT-BC19199  Carex barbarae L. P. Janeway 1988-6-25 2853 Butte Along small creek below Hwy 191 (Clark Road), 3.0 miles north of Durham-Pentz Road. 176 Comment
  CAS-BOT-BC19415  Carex bolanderi L. P. Janeway 1987-6-5 2131 Butte Along French Creek Road 1.4 mile NE of OroQuincy Hwy and Stanwood Saddle. 929 Comment
  JEPS124417  Carex bolanderi Lowell Ahart 2015-6-16 20232 Butte About 3 1/2 miles (by road) northwest of Fall River Bridge, about 5 miles (air) northwest of Camp 18, about 8 1/2 miles (air) northeast of Feather Falls. Comment
  CHSC115466  Carex cyrtostachya P. F. Zika; B. Wilson, L. Ahart, L. Janeway 2011-8-3 25715 Butte Forest Road 20N03 (Moreville Ridge Road), 2 air miles SE of Sugar Pine Point, Pinkard Creek drainage, northern Sierra Nevada Highlands. 1075 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
  CAS-BOT-BC34952  Carex densa J. D. Jokerst 1985-5-11 2325 Butte Ca. 0.5 mile south of Bax Hall Flat, 1 mile east of Potter Ravine, immediately north of Lake Oroville. Comment
  CHSC52856  Carex densa L. P. Janeway 1987-6-8 2181 Butte Seep along dirt road 3.0 mi south of Big Bar Mtn. 1021 Comment
  CHSC84272  Carex densa Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2003-5-27 10220 Butte About 100 yards west of the dirt road, west of Diversion Dam on Big Chico Creek, west of Parking Area L, Upper Bidwell Park, about 3 1/2 miles east of Manzanita Avenue Chico. 121 Comment
  JEPS116020  Carex densa Lowell Ahart 2009-6-3 15818 Butte About 100 yards west of the table at the old homestead and about 50 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 232 Comment
  SEINET3450851  Carex densa Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2003-5-27 10220 Butte Chico, Chico, about 100 yards west of the dirt road, west of Diversion Dam on Big Chico Creek, west of Parking area L, Upper Bidwell Park, about 3.5 miles east of Manzanita Avenue, Ohio 120 Comment
  CHSC52864  Carex echinata subsp. echinata L. P. Janeway 1987-6-27 2348 Butte Meadow just E of Keyser Cr; 4.3 mi N of Ramsey Bar along the Concow Rd. 1478 Comment
  CHSC38896  Carex feta Vernon Oswald 1983-5-27 566 Butte Upper Bidwell Park, Chico, below the South Rim Trail between the Golf Course and the power lines. 121 Comment
  JEPS117617  Carex feta Lowell Ahart 2010-6-25 16839 Butte 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
  CAS-BOT-BC20000  Carex feta L. P. Janeway 1987-5-20 2077 Butte Along Hwy 70 2.1 miles NE of Pulga bridge, near Heinz Creek. 457 Comment
  HSC87284  Carex feta L. P. Janeway 1988-5-19 2664 Butte Along Rock Creek at the Rock Creek Rd. Bridge 113 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
  CHSC43903  Carex fracta L. P. Janeway 1987-5-20 2085 Butte North Fork Feather River. Seep along hwy 70 0.3 mi north of Arch Rock Tunnel. 472 Comment
  CHSC63288  Carex gracilior Lowell Ahart 1994-4-29 7291 Butte 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
  UC1748322  Carex heteroneura L. P. Janeway 1995-8-5 4891 Butte Along West Branch Feather River about 0.1 mi above Snag Lake. 1725 Comment
  HSC96350  Carex hirtissima L. P. Janeway 2003-6-8 7816 Butte Flea Valley, meadow at head of Concow Creek 1116 Comment
  JEPS105636  Carex hirtissima L. P. Janeway 2003-6-8 7816 Butte High Cascade Range. Flea Valley: meadow at head of Concow Creek 1116 Comment
  CHSC52267  Carex infirminervia L. P. Janeway 1986-9-1 1828 Butte East end of Philbrook Reservoir. 1691 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
  CHSC52914  Carex integra L. P. Janeway; R. A. Schlising 1988-7-22 3062 Butte Upper canyon of Philbrook Creek, 0.7 mi W of the pass. 1920 Comment
  JEPS110203  Carex jonesii Lowell Ahart 2006-7-16 12992 Butte On the west edge of Willow Creek, on the east side of a large meadow and bog, about 200 yards southeast of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
  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
  CAS-BOT-BC7781  Carex laeviculmis Lowell Ahart 1981-9-15 3171 Butte Along French Creek 1300 Comment
  CHSC92369  Carex laeviculmis Robert F. C. Naczi; Lawrence P. Janeway 2004-7-23 10501 Butte Ca. 3 mi SSE of village of Butte Meadows, along Coon Creek at its crossing by the Skyway (county road 51262), (WGS84). 1551 Comment
  UC1133395  Carex laeviculmis P. L. Johannsen 1936-7-17 950 Butte 3 mi se of Butte Meadows (Lassen National Forest); Lassen National Forest 1554 Comment
  UCD140489  Carex laeviculmis L. P. Janeway 1987-7-4 2424 Butte along road to Jones Meadow, 9.6 miles from Inskip. Last Chance Creek. 1676 Comment
  SEINET12649529 Image available Carex leavenworthii Lowell Ahart 2012-1 18190 Butte 62 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
  JEPS100487  Carex lemmonii Lowell Ahart 2000-7-11 8569 Butte Seeps, on the sides of a dirt road, about 100 yards north of Lumpkin Ridge Road, upper west branch of Know-nothing Creek, about 1 mile southwest of the intersection of Lumpkin Ridge Road, road to Fall River, and the County Road, about 4 miles (air) northe 1219 Comment
  UC1609198  Carex lemmonii Lowell Ahart 1993-6-26 7007 Butte about 1/4 mi w Lost Creek Reservoir (on the s side of the dirt road) 1036 Comment
  CHSC51506  Carex lenticularis var. impressa L. P. Janeway; R. A. Schlising, B. Castro, Pauleen Broyles 1987-7-19 2491 Butte Meadow along Humbug Summit Rd ca 5 1/2 mi N of Inskip, at the Cornelia Lott Sank Memorial Spring. 1539 Comment
  JEPS105277  Carex luzulina var. ablata Dean W. Taylor 1995-8-6 15393 Butte ca. 5 air miles NE of Stirling City; boggy meadow 0.5 miles E of Bald Mtn summit; Lassen National Forest 1219 Comment
  CHSC51511  Carex nebrascensis L. P. Janeway 1987-5-10 2044 Butte Meadow at junction of Skyway and Doe Mill/Humbug Road (just N of DeSabla Reservoir). 838 Comment
  CAS-BOT-BC94041  Carex pendula Peter F. Zika 2010-5-16 24824 Butte shores of Comanche Creek, both sides of channel and bridge, junction of Breslauer Ave. and Lone Pine Ave., SW of Chico 45 Comment
  CHSC31672  Carex praegracilis L. Ahart 1977-6-3 1405 Butte In a small wash, Peter Ahart Ranch, Honcut. 50 Comment
  UCD140748  Carex praegracilis Kathy Corson 1969-4-6 25 Butte Upper Park Road of Big Chico Canyon, 8 miles northeast of Chico. Comment
  CHSC94300  Carex simulata Lowell Ahart 2006-6-16 13011 Butte In the west edge of a large wet meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1569 Comment
  CHSC52872  Carex straminiformis L. P. Janeway; R. A. Schlising 1988-7-1 2916 Butte On the NE-facing flank of Snow Mtn and above Summit Lake. 2011 Comment
  SEINET7576411 Image available Carex straminiformis Robert F. C. Naczi, A. A. Reznicek 2006-8-1 11381 Butte Northernmost part of county, ca 3.2 mi NNE of Jonesville, ca 8 mi NE of community of Butte Meadows, N slopes of Humboldt Peak, near summit. 2118 Comment
  CDA13902  Carex subfusca G. F. Hrusa, T. D. Wilfred 1997-5-8 13759 Butte Sierra Nevada; Above Little Butte Creek, N of Magalia, above Magalia Res. Immed. E of Holmwood Drive. Comment
  CHSC45072  Carex subfusca Vernon Oswald 1987-5-7 2379 Butte Butte Creek Reserve on the n side of Butte Creek e of the Skyway. On the bottom of a drying dredger pond. 74 Comment
  CHSC52881  Carex subfusca L. P. Janeway 1989-5-17 3248 Butte Cyn overlook along road to Forbestown Diversion Dam 3.7 mi from Forbestown Rd. 693 Comment
  CHSC55447  Carex subfusca L. P. Janeway; R. A. Schlising 1988-7-22 3052 Butte Coon Hollow side of saddle between Coon Hollow and Chips Creek. 1920 Comment
  OBI22634  Carex subfusca H. F. Copeland 1932-7-14 s.n. Butte Vicinity of Jonesville, Lassen Natl Forest Comment
  SEINET259924  Carex subfusca M. S. Taylor 1978-7-21 1812 Butte On S side of Oroville-Quincy Hwy ca. 14 mi N of Lake Madrone ca. 24 mi NE of Oroville 1463 Comment
  SEINET7577159 Image available Carex subfusca Lowell Ahart 1987-5-6 5544 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC44688  Carex texensis L. P. Janeway 1987-4-28 2011 Butte CSUC campus. In ornamental landscaping on NE corner Hazel and 2nd St. 57 Comment
  HSC89352  Carex texensis L. P. Janeway 1989-6-1 3270 Butte CSU Chico campus, N side of Big Chico Creek, opposite Holt Hall 58 Comment
  UC203660  Carex utriculata A. A. Heller 1914-6-22 11494 Butte Chico Meadows 1219 Comment
  CHSC113958  Carex vesicaria Lowell Ahart 2014-7-7 19577 Butte North of the bog, Coon Hollow, about 2 miles (air) north of Philbrook Reservoir. 1690 Comment
  CAS-BOT-BC65489  Carex vesicaria var. vesicaria L. P. Janeway 1995-8-5 4889 Butte North side of Humbug Summit Rd about 1.2 mi northeast of Snag Lake. 1801 Comment
  CHSC44838  Carex whitneyi L. P. Janeway; R. A. Schlising, B. Castro 1988-7-23 3077 Butte Top of ridge between Snag Lake and Butte Cr; ca 1.4 air mi W of Butte Creek House. 1935 Comment
  CAS-BOT-BC499135  Carex xerophila Peter F. Zika; L. P. Janeway 2012-5-16 25868 Butte Coutolenc Road 0.1 mi N of Skyway Rd. 720 Comment
  CHSC45064  Carex xerophila Vernon Oswald 1984-4-16 1159 Butte Near the jct. of the Skyway and Coutolenc Rd. just n of Magalia. 716 Comment
  HSC103679  Carex xerophila L. P. Janeway 2006-5-14 8595 Butte Northern High Sierra Nevada. 'Magalia Serpentine', east side of Coutolenc Road, between that road and the first bend in the road down to the 'Magalia 73 Dam'. 707 Comment
  CHSC111130  Carpenteria californica Lowell Ahart; Susan Bazell, Josephine Guardino, Wes Dempsey 2012-6-21 18201 Butte About 50 yards south of the dam at Sycamore Pool, Lower Bidwell Park, Chico. 62 Comment
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Feb 9 2019
  CAS-BOT-BC249114  Castilleja affinis A. A. Heller 1919-4-12 13101 Butte Cherokee Mine Comment
  CAS-BOT-BC249118  Castilleja affinis Lowell Ahart 1989-5-10 6222 Butte Near Lake Oroville, about 1/10 mile north-west of the West Branch Bridge across Lake Oroville 289 Comment
  CHSC44705  Castilleja affinis R. Banchero 1980-4-7 95 Butte Along Swedes Flat Rd ca 2.6 mi E of its jct with the Bangor Hwy. Ca 0.8 mi W of the jct of the Hurleton-Swedes Flats Rd and Swede Flat rd. 373 Comment
  JEPS124196  Castilleja affinis subsp. affinis Lowell Ahart 2015-3-24 19962 Butte About 3 1/2 miles (air) southwest of Oroville. Comment
  CDA13307  Castilleja applegatei subsp. pinetorum G. F. Hrusa, T. D. Wilfred 1996-7-9 13153 Butte Sierra Nevada; E side of bridge over Marble Creek on USFS N60. Comment
  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
  CHSC114978  Castilleja applegatei subsp. pinetorum Lowell Ahart 2015-4-13 20032 Butte Road cut, on the west side of Rim Road, about 1/4 mile north of Jrbo Gap, about 15 miles (air) north of Oroville. 730 Comment
  CHSC44773  Castilleja applegatei subsp. pinetorum R. Banchero 1980-5-12 152 Butte Along Hwy 70, 1.7 mi N of Jarbo Gap, 3.6 mi SW of the jct of Hwy 70 and the Feather River. 658 Comment
  JEPS124198  Castilleja applegatei subsp. pinetorum Lowell Ahart 2015-4-13 20033 Butte About 2 1/2 miles (air) north of Jarbo Gap, about 17 miles (air) North of Oroville Comment
  JEPS80628  Castilleja applegatei subsp. pinetorum M. S. Taylor 1981-7-19 3957 Butte ca 0.25 mi <?> nw end of Pulga Bridge (along Pulga Rd, n side of Feather River Highway, ca 20 mi ne of Oroville); Pulga Quad. 487 Comment
  SEINET10931194  Castilleja applegatei var. fragilis Lowell Ahart, Peter Ahart 1983-6-30 Ahart 4177 Butte T22N R4E nw/nw sec 1. Ca. 1.5 mi ne of Concow Reservoir. Foothill Woodland; 550 m. NE of Oroville. 550 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
  CHSC47694  Castilleja campestris subsp. campestris Lowell Ahart 1978-5-1 1689 Butte Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC71191  Castilleja exserta subsp. exserta Lowell Ahart 1998-6-9 7996 Butte Northwest of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 396 Comment
  JEPS119784  Castilleja exserta subsp. exserta Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18015 Butte South of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  HSC23341  Castilleja exserta subsp. exserta L. Walk 1971-4-6 11 Butte .5 mi. SE of Keefer Rd., 1.5 mi. E of Hwy. 99 30 Comment
  CHSC44430  Castilleja lacera Lowell Ahart 1988-6-15 6040 Butte North of Forbestown Road, about 100 meters east of the intersection of Black Bart Road and Forbestown Road, about 1 mile west of Robinson Mill Road. 670 Comment
  CHSC59356  Castilleja lacera J. L. Guardino 1992-4-18 17 Butte Souther rim of Chico Creek Canyon, 1.7 mi e of Oak Halloe Ln. 268 Comment
  UC492736  Castilleja miniata H. F. Copeland 1932-7-24 Butte above Butte Creek Meadows (w wall of Butte Creek drainage, near rim); Jonesville, Butte Creek Comment
  POM284544  Castilleja miniata Lyman Benson 3956 Butte First Summit, Oroville-Quincy, Sierra Nevada, Feather River Watershed 1829 Comment
  CHSC114976  Castilleja pruinosa Lowell Ahart 2015-4-13 20035 Butte On the southwest side of Rim Road, about 3 miles (air) north of Jarbo Gap, about 17-1/2 miles (air) north of Oroville. 907 Comment
  POM44384  Castilleja subinclusa C. C. Bruce 1897-05 1940 Butte Butte Creek. Comment
  RSA32001  Castilleja subinclusa subsp. subinclusa A. A. Heller 1941-4-12 16006 Butte Pentz-Paradise grade; 2 m. above Pentz. A few scattered clumps in clay soil on a slope nar shrubs. Comment
  HSC59635  Ceanothus cuneatus J. P. Smith 1973-3-22 5933 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  SEINET10493626  Ceanothus cuneatus Lowell Ahart 1985-3-4 Ahart 4845 Butte On red rocky soil near Kunkle Res., about 2 miles south of Paradise. Comment
  SEINET13945813 Image available Ceanothus cuneatus A. A. Heller 1914-1 11210 Butte Canyon of Big Chico creek, elev about 250 ft 76 Comment
  CHSC39796  Ceanothus integerrimus Eloise Gallatin 1935-5-4 Butte Paradise. Comment
  RSA594181  Ceanothus integerrimus S. O. Mattoon 1978-9-21 51 Butte Southern Cascade Mtns: Ponderosa Way Forest Road at Middle Fork, Butte Creek, 5 air miles NW of Maglia. 671 Comment
  SEINET267155  Ceanothus integerrimus T. A. Ranker, P. G. Trapp 1994-6-17 1620 Butte Pence Road south of Paradise. 395 Comment
  UC203678  Ceanothus integerrimus A. A. Heller 1914-4-16 11293 Butte 8 mi from Chico (on the Chico-Centerville rd) Comment
  UC398933  Ceanothus integerrimus E. B. Copeland 1929-7-14 383 Butte Jonesville 1650 Comment
  CHSC55404  Ceanothus integerrimus var. macrothyrsus C. G. Morris 1991-4-18 14 Butte Collected 60 yds n of Castle Dr., 0.6 mi w of Oliver Rd., Paradise. 533 Comment
  RSA21542  Ceanothus integerrimus var. puberulus Carl B. Wolf 1937-5-18 8728 Butte Northern Sierra Nevada, 5 miles below Magalia on Oroville road. 610 Comment
  CAS-BOT-BC51734  Ceanothus lemmonii C. R. Quick 1941-6-8 41 -10 Butte about 2 miles S. of Big Bar Mt. Comment
  CHSC31411  Ceanothus lemmonii Debra Dockrey 1980-4-21 4 Butte Ca 10 mi n of Chico. 426 Comment
  POM85915  Ceanothus parvifolius C. C. Bruce 1897-05 1804 Butte Forest- Ranch. Comment
  CAS-BOT-BC52007  Ceanothus prostratus A. A. Heller 1939-4-10 15371 Butte upper end of Cohasset Comment
  UCD123936  Ceanothus prostratus D. O. Burge 2007-5-11 921 e Butte East shore of Lake de Sabla, 1.5 road miles (2.4 km) north of intersection with Magalia Nimshew Road on Skyway, 7.35 km 338 deg. (True) NNW of Magalia. 850 Comment
  CAS-BOT-BC52016  Ceanothus prostratus H. D. Thiers 1969-6-8 23444 Butte Forest Service road between McCloud and Dunsmuir, about 8 miles from Dunsmuir 1371 Comment
  CHSC97032  Centaurea cyanus L. P. Janeway 2007-7-9 9111 Butte Northern High Sierra Nevada. Plumas National Forest; near Road 21N25 in the southeastern corner of Watson Ridge, 1.0 km north-northeast of the mouth of Kenebeck Creek at Fall River and Nelsons Crossing. 1128 Comment
  CHSC103998  Centaurea melitensis Lowell Ahart 2010-6-20 16835 Butte About 3/8 mile north of Cox Lane, about 1 1/2 miles east of Palermo Honcut Highway, Guidci Ranch, about 7 1/2 miles (air) southeast of Oroville. 55 Comment
  CHSC42710  Centaurium tenuiflorum Lowell Ahart 1987-6-9 5744 Butte On the west side of the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC66439  Centaurium tenuiflorum Vernon H. Oswald; Lowell Ahart 1996-6-10 7758 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 mile Lane and the Sacramento River. At NE corner of Tract 7.2, Sanctuary I. 33 Comment
  CDA39704  Centaurium venustum L. Ahart 1998-7-1 8021 Butte Northwest of the lone oak tree, about 1/8 mile northwest of the cow chute on the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  CHSC22563  Centromadia fitchii Robert A. Schlising 1973-10-14 3118 Butte Bidwell Park, Chico, ca 0.25 mi NE of jct Upper Park Road and Manzanita Avenue. Comment
  CHSC48165  Centromadia pungens subsp. septentrionalis Vernon Oswald 1983-6-28 785 Butte Graylodge Waterfowl Management Area in Parking Lot 17. Comment
  JEPS46151  Cephalanthera austiniae Duncan Dunning 1922-7-18 Butte n. Pulga (Flea Valley); Flea Valley Comment
  CAS-BOT-BC222892  Cephalanthus occidentalis Lowell Ahart 1973-8-13 s.n. Butte Peter Ahart Ranch, Honcut 150 Comment
  CAS-BOT-BC222896  Cephalanthus occidentalis John Thomas Howell 1961-9-22 36764 Butte North Fork of Feather River, 10 miles from Oroville Comment
  SEINET9801333 Image available Cephalanthus 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
  CHSC102618  Cephalanthus occidentalis var. californicus Lowell Ahart 2009-7-9 16019 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
  UC924237  Cephalanthus occidentalis var. californicus H. S. Reed 1939-7-10 298 Butte 5 mi nw Chico (banks of Sacramento River); Sacramento River 60 Comment
  CHSC111148  Cerastium fontanum subsp. vulgare Lowell Ahart 2012-6-14 18192 Butte On the south side of the path, south of CARD Community Center, Lower Bidwell Park, Chico. 62 Comment
  JEPS94432  Cerastium fontanum subsp. vulgare Lowell Ahart 1997-10-20 7920 Butte 3 air mi nw of Sly Creek Reservoir Dam (about 3/4 mi n of Golden Trout Crossing, on w side of sharp bend in South Fork of Feather River, about 1/4 mi n of the bridge across river); South Fork of Feather River 914 Comment
  CHSC78070  Cerastium glomeratum Megan Lee Hudzik 1998-4-16 22 Butte Bidwell Park, 50 m w of Horseshoe Lake, 6 miles of s Bidwell Mansio. In field. 91 Comment
  UCD98036  Cerastium glomeratum Joseph M. DiTomaso 1976-5-23 474 Butte On south side of Lake Oroville. 274 Comment
  UCD113037  Cercocarpus betuloides J. I. Mallory 1968-7-1 297 Butte 2 miles W-SW of Mountain Home State Forest Headquarters, Sequoia National Forest. 1219 Comment
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Sep 9 2014
  CAS-BOT-BC136999  Cercocarpus betuloides var. betuloides Gladys L. Smith 1976-4-8 s.n. Butte Table Mountain 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
  CHSC11845  Chaenactis douglasii var. douglasii E. B. Copeland 1931-7-6 692 Butte Jonesville. 1900 Comment
  CHSC30415  Chaenactis glabriuscula var. heterocarpha R. Banchero 1980-5-4 50 B Butte N of Hwy 70 crossing of Lake Oroville St. Rec. Area, 1/4 mi north of jct Lunt Rd and Hwy 70. 609 Comment
  JEPS105900  Chamaemelum fuscatum Lowell Ahart 2004-4-10 10732 Butte Road gutter on the north side of Highway 149, about 1 mile northwest of the intersection of Highway 149 and Highway 70, about 6 miles (air) northwest of Oroville 69 Comment
  CHSC52637  Chamaesyce hooveri R. D. Stone 1986-7-15 750 Butte Central Valley. Esquon Lake, about 10 miles SE of Chico, 0.1 miles E of Highway 99 and 0.5 miles SE of its intersection with Pentz Road. Vernal pool. 54 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
  CHSC110407  Chamaesyce maculata Lowell Ahart 2012-9-28 18473 Butte Gravel bar in the middle of Big Chico Creek, about 30 yards east of the Freeway, Lower Bidwell Park, Chico. 65 Comment
  RSA0118934  Chamaesyce maculata Lowell Ahart 2013-10-19 19137 Butte Between the river and the large gravel bar, along the west side of the Sacramento River, southwest of the boat launch area, west of Butte City. 27 Comment
  SEINET10493564  Chamaesyce maculata Lowell Ahart 1984-8-19 Ahart 4784 Butte West of Pacific Heights Road, about 5 miles south-west of Oroville. 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
  UC765099  Chamaesyce ocellata R. F. Hoover 1938-8-2 3716 Butte 13 mi s Chico Comment
  CHSC102992  Chamaesyce ocellata subsp. ocellata Lowell Ahart 2009-8-15 16284 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 33 Comment
  SEINET10529874  Cheilanthes cooperae Mary Susan Taylor 1979-5-4 Taylor 1990 Butte T21N R6E sec 10. Millsap Bar Campground, ca. 9 mi NE of junction of Millsap Bar Road with Brush Creek Road, ca. 26 mi NE of Oroville; Yellow Pine Forest with limestone outcrops. 1006 Comment
  CHSC44088  Cheilanthes gracillima L. P. Janeway 1987-7-5 2465 Butte Along the road to High Lakes, 5.2 mi from the Skyway (Philbrook Rd.). 1844 Comment
  CHSC31539  Chenopodium album L. Ahart 1974-9-8 629 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CDA13235  Chenopodium botrys G. F. Hrusa, T. D. Wilfred 1996-7-8 13082 Butte Plumas National Forest; Old gun range on Old Railroad Grade Rd. nr. Paradise Lake Dam, approx. 3 m. N of Magalia. Comment
  SEINET10871663  Chenopodium botrys Lowell Ahart 1984-8-19 Ahart 4781 Butte West of Pacific Heights Road, about 5 miles south-west of Oroville. Comment
  RSA726435  Chenopodium pumilio L. Ahart 2007-11-3 14566 Butte About 3/4 mile east of the Power House below Kuncke Reservoir, about 1.25 miles north of the Lime Saddle Campground, about 5 miles (air) southeast of Paradise. 259 Comment
  SEINET10479078  Chenopodium pumilio Lowell Ahart 1985-10-12 Ahart 5203 Butte At the end of Nelson Bar Road, about 1 mile south of Kunkle Reservoir, about 3 miles south of Paradise. Comment
  UC455449  Chimaphila umbellata Miss Kate Conger 1907-1 Butte Bush Creek Comment
  CHSC49527  Chloris virgata Vernon Oswald 1983-7-3 799 Butte Located at the n-e corner of Calif. Hwy 32 and W. Lindo Ave. in Chico. Roadside, along edge of almond orchard. Comment
  CHSC38877  Chlorogalum pomeridianum var. pomeridianum Vernon Oswald 1983-6-20 726 Butte Upper Bidwell park, Chico, along Yahi Trail e of Brown's Hole. 198 Comment
  HSC97883  Chondrilla juncea L. Ahart 2003-7-10 10372 Butte N slope of Ponderosa Dam, about 2 mi. (air) NW of Forbestown 297 Comment
  CAS-BOT-BC252668  Chorizanthe membranacea Lewis S. Rose 1945-5-12 45014 Butte Richardson Springs 304 Comment
  CHSC38608  Chorizanthe membranacea Vernon Oswald 1983-5-14 490 Butte Upper Bidwell Park, Chico, on the north rim ca. 1600 ft. e of the power lines. 274 Comment
  CHSC9142  Chorizanthe stellulata L. W. Gray 1970-5-5 27 Butte Collected ca. 30 yds. N. of the Chico-Paradise Skyway ca. 7 mi. E. of the intersection of the Skyway with Highway 99 E. Was located ca. 5 ft. from the cliffs. Comment
  CHSC37344  Cicendia quadrangularis F. J. Fuller 1982-4-17 18 Butte Ca. 30 ft n of Broyles Rd, 0.4 mi w of Hwy 99. 59 Comment
  CHSC26652  Cichorium intybus M. S. Taylor 1977-11-10 1528 Butte Ca. 1 mi E of jct of Nelson West Rd and Chico-Butte Hwy, on N side of Nelson West Rd, ca. 23 mi S of Chico. 30 Comment
  SEINET10453140  Circaea alpina subsp. pacifica Lowell Ahart 1983-8-16 Ahart 4293 Butte T26N R4E nw section 28. Along a small stream that flows into Butte Creek, ca. 1 mi east of Butte Meadows. Yellow Pine Forest; 1450 m. 1450 Comment
  SEINET10971148  Cirsium coulteri Mary Susan Taylor 1975-6-30 Taylor 821 Butte Ca. 1/4 mi W of Cohasset Hwy, ca. 400 yds N of Greenwood Store, Cohasset; Yellow Pine Forest. 853 Comment
  CAS-BOT-BC285526  Cirsium occidentale var. candidissimum John Thomas Howell 1955-6-15 30485 Butte 6 miles from Paradise on road to Pentz 426 Comment
  CAS-BOT-BC288036  Cirsium occidentale var. venustum Lowell Ahart 1980-5-25 2328 Butte Along Swedes Flat Road near Bangor, Sierra Nevada 320 Comment
  CHSC46449  Cirsium scariosum V. Oswald; L. Ahart 1989-6-27 3828 Butte Humbug Rd at Butte Creek House, ca. 3.3 mi (air) se of Jonesville. Along Butte Creek. 1767 Comment
  CHSC27719  Clarkia concinna subsp. concinna Robert A. Schlising; Coleta Lawler 1978-5-29 3278 Butte Northern part of county near Cohasset; along Cohasset Road, 4.3 miles above crossing of Mud Creek and 4.1 miles NE of jct with road to Richardson Springs; bank of roadside. Comment
  CHSC30014  Clarkia concinna subsp. concinna L. Ahart 1980-5-25 2341 Butte Near the edge of Ponderosa Way, ca. 2 mi s of the Ponderosa Dam, near Forbestown. 600 Comment
  JEPS105640  Clarkia concinna subsp. concinna L. P. Janeway, John Hunt, Adam Henderson 2003-6-3 7804 Butte Northern High Sierra Nevada. Southeast side of Middle Fork Feather River arm of Lake Oroville, 1.4 km southwest of mouth of Bean Creek 283 Comment
  CHSC39038  Clarkia gracilis subsp. albicaulis Lowell Ahart 1983-6-26 4159 Butte About 17 miles ne of Oroville, along Bean Creek Road, about 5 miles s of Little Bald Rock. 600 Comment
  SD7361  Clarkia gracilis subsp. albicaulis R. M. Austin 1880-1 Butte Comment
  CAS-BOT-BC171879  Clarkia gracilis subsp. gracilis Carl B. Wolf 1937-6-12 8783 Butte Sierra Nevada Foothills, 2 1/2 mi. SE of Oroville on road to Wyandotte 91 Comment
  SEINET10939935  Clarkia mildrediae Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4745 Butte About 1 1/2 mile south-east of Bald Mountain, 3/4 mile west of Oak Point, about 4 miles north-east of Stirling City. Comment
  SEINET10973132  Clarkia mildrediae Lowell Ahart, Peter Ahart 1983-6-30 Ahart 4186 Butte T23N R4E nw sec 10. Along edge of dirt road, ca. 3 mi se of Stirling City, on w side of West Branch of Feather River. Yellow Pine Forest; 1100 m. 1100 Comment
  CHSC39035  Clarkia mildrediae subsp. lutescens Lowell Ahart 1983-7-29 4248 Butte About 25 miles north-east of Oroville and 2 miles east of Milsap Bar on Middle Fork of the Feather River; at roadside. 1000 Comment
  JEPS100226  Clarkia mildrediae subsp. lutescens Dean W. Taylor 2002-7-3 18219 Butte Forest Road 22N22 ca. 0.3 miles north of crossing of Fall River (ca. 1 air mile S of Walters Mine site) 1219 Comment
  CHSC91668  Clarkia mildrediae subsp. mildrediae L. P. Janeway; Samantha Mackey Hillaire 2005-7-11 8489 Butte Northern High Sierra Nevada. Near top of east side of broad ridge between Dogwood Creek and Camp Creek; 1.5 km southwest of confluence of Camp Creek and Lockerman Creek. Steep northeast-facing slope. 1079 Comment
  RSA108404  Clarkia mildrediae subsp. mildrediae Harlan Lewis, F. Vasek 1950-6-30 760 Butte Hwy 24, 2 miles S of Arch Rock on Feather River Comment
  CHSC82715  Clarkia mosquinii L. P. Janeway 2002-6-22 7604 Butte Northern High Sierra Nevada. Along Dark Canyon Road 1.5 km south of Big Bend Road. Burned area. 509 Comment
  JEPS109585  Clarkia mosquinii Dean Wm. Taylor, Tom Engstrom 2002-7-3 18214 Butte Fields Ridge, northerly rim South Fork Feather River canyon (ca. 3 air miles SE of Feather Falls mill site, ca. 19 miles E of Oroville, along Forest Road 20N24) 975 Comment
  LA91997  Clarkia mosquinii T. Mosquin; 1959-7-2 3336 Butte 0.2 mi W of Enterprise, along highway Comment
  CHSC25036  Clarkia purpurea G. Foster 1972-5-23 9 Butte On s side of hwy 32 ca. 3.2 mi e of highway 99 overpass. Comment
  CHSC52094  Clarkia purpurea R. C. Kirkpatrick 1972-4-25 39 Butte Found ca. 100 yds. se of Horseshoe Lake and ca. 50 yds sw of the skeet shooting range. 152 Comment
  SEINET10453160  Clarkia purpurea Mary Susan Taylor 1976-4-27 Taylor 1082 Butte Abundant in Valley Grassland, ca. 50 ft E of Cohasset Hwy, ca. 3 mi N of Chico. 61 Comment
  CAS-BOT-BC172530  Clarkia purpurea subsp. purpurea A. A. Heller 1914-5-11 11384 Butte Hills 8 miles north of Oroville Comment
  CAS-BOT-BC172531  Clarkia purpurea subsp. purpurea A. A. Heller; H. E. Brown 1902-5-6 5472 Butte Berry Canyon, near Clear Creek Comment
  CAS-BOT-BC163654  Clarkia purpurea subsp. quadrivulnera Lowell Ahart 1989-5-10 6224 Butte At the end of the dirt road that leads to Lake Oroville, about 1/12 mile north-west of the West Branch Bridge across Lake Oroville 280 Comment
  CAS-BOT-BC163658  Clarkia purpurea subsp. quadrivulnera Mrs. H. C. Cantelow 1940-5-10 4032 Butte S. W. of Oroville, Hy #24 Comment
  CHSC70745  Clarkia rhomboidea L. P. Janeway 1993-6-10 4378 Butte Southwest side of Watson Ridge about 1.5 mi east of Bald Rock Dome. 822 Comment
  CHSC70751  Clarkia rhomboidea L. P. Janeway 1993-6-23 4402 Butte Along Road 23N28 0.2 mi south of crossing of Last Chance Creek. 807 Comment
  CHSC88090  Clarkia rhomboidea R. D. Fischer 2004-4-17 175 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located mid-way down 10 Mile House Road on cut bank. 365 Comment
  UCD85105  Clarkia rhomboidea Dena Grossenbacher; Joel Smith 2009-6-22 1062 Butte 1.4 miles south of Arch Rock along Highway 70 next to the Feather River. 453 Comment
  SBBG4998  Clarkia rhomboidea H. and M. Dearing 1938-6-21 2052 Butte 21 mi NE of Chico Comment
  CHSC104824  Clarkia unguiculata Lowell Ahart 2010-6-1 16759 Butte On the north side of the Guardians Trail, about one mile east of the power lines, Upper Bidwell Park, about 3 miles (air) east of Chico. 180 Comment
  SEINET10453172  Clarkia unguiculata Lowell Ahart, Peter Ahart 1983-6-30 Ahart 4170 Butte T21N R4E ne sec 11. Dark Canyon, along old Hwy 40, ca. 4 mi s of Jarbo Gap, ne of Oroville. Foothill Woodland; 350 m. 350 Comment
  SEINET10572700  Claytonia parviflora Mary Susan Taylor, L. Hanson 1981-4-2 Taylor 3467 Butte T20N R7E ne sec 32; Clipper Mills quad. South side of Forbestown Reservoir, in serpentine cliff, south side of Rd 20N29, ca. 3 air mi north of Woodleaf. l800 ft. 549 Comment
  CHSC1381  Claytonia parviflora subsp. parviflora E. Dolittle 1929-3-15 Butte Bidwell Park. 60 Comment
  CHSC33698  Claytonia parviflora subsp. parviflora L. Ahart 1981-4-9 2755 Butte On dry grassy soil on banks of North Honcut Creek, Peter Ahart Ranch, ca. 1 mi n and 3 mi e of Honcut. 50 Comment
  SFV11272  Claytonia perfoliata M. L. Vincent 1963-6-8 397 Butte Sierra Nevada Honey Run Road. West of Paradise. Comment
  SFV1192  Claytonia perfoliata M. L. Vincent 1961-3-29 27 Butte Sacramento Valley Chico. Bidwell Park. 100 Comment
  CHSC3749  Claytonia rubra subsp. rubra R. L. Adams 1964-4-12 59 Butte Skyway, 1/2 mi. S. on Elliott Rd. Paradise. Comment
  CAS-BOT-BC91351  Clematis lasiantha Jeanne McFarland; Kathie Meyer; Anne Mullenniex 1995-4-9 48 Butte About 5 miles south of Paradise on Pentz Road, at intersection with Kuncle Reservoir Road. Comment
  UC135532  Clematis lasiantha Mrs. R. M. Austin May 1896 758 Butte Comment
  CHSC45417  Clematis ligusticifolia Lowell Ahart 1976-6-24 1144 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. 51 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
  CAS-BOT-BC238019  Collinsia Jim Riley 1923-4-2 s.n. Butte Richardson Springs Comment
  SEINET12319539  Collinsia grandiflora Unknown 1973-1 14 Butte ca 5 mi NE of Oroville, on top of Table Mt., 20 yds off E side of Old Cherokee Rd Comment
  SEINET12332664  Collinsia heterophylla L. J. Edson 1988-1 8 Butte vic. Chico Municipal Golf Course, ca 3 mi NE of Chico 91 Comment
  UC103369  Collinsia parviflora Mrs. R. M. Austin May 1896 258 Butte Little Chico Creek Comment
  UCD123647  Collinsia parviflora M. Vincent 1964-4-11 562 Butte Cherokee Road, beside the Campbell ranch 1/2 mile south of Cherokee. Comment
  POM43045A  Collinsia sparsiflora var. collina C. C. Bruce 1897-03 2062 Butte [No location information provided.] Comment
  CHSC11958  Collomia grandiflora E. B. Copeland 1931-7-14 677 Butte Jonesville. 1550 Comment
  CHSC42554  Collomia heterophylla Lowell Ahart 1987-5-6 5533 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CDA40005  Collomia linearis T. C. Fuller 1962-7-12 9171 Butte Road to Jonesville, 2 miles east of Butte Meadows. 0 Comment
  UC600656  Collomia tinctoria E. B. Copeland 1929-7-18 Butte on slides over Butte Creek; Jonesville 1550 Comment
  CAS-BOT-BC180250  Comandra umbellata subsp. californica A. A. Heller 1913-6-7 10805 Butte Near Stirling 1074 Comment
  CAS-BOT-BC180251  Comandra umbellata subsp. californica A. A. Heller 1915-4-20 11845 Butte 3 miles above Centerville in the Sierra foothills Comment
  CHSC102848  Convolvulus arvensis Lowell Ahart 2009-5-30 15787 Butte About 50 yards south of the fence and about 100 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 269 Comment
  CHSC31656  Convolvulus arvensis L. Ahart 1978-7-15 1784 Butte Peter Ahart Ranch, Honcut. On dry bare soil near the garden. 50 Comment
  CDA32106  Conyza canadensis L. Ahart 2008-11-4 15396 Butte Below the high water line of Lake Oroville, about one mile southeast of the large parking area on the north end of Oroville Dam, about 5 miles (air) northeast of Oroville. Comment
  JEPS99033  Conyza canadensis Lowell Ahart 1998-11-11 8063 Butte About 3/8 mile NW of the cattle chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 396 Comment
  CAS-BOT-BC286063  Conyza canadensis A. A. Heller 1914-8-13 11680 Butte 8 miles north of Oroville Comment
  CHSC40475  Conyza floribunda Lowell Ahart 1985-1-27 4836 Butte Along the road at Kunkle Res., about 2 miles south of Paradise. 550 Comment
  JEPS115279  Conyza floribunda Lowell Ahart 2008-11-4 15397 Butte Below the high water line of Lake Oroville, about one mile southeast of the large parking area on the north end of Oroville Dam, about 5 miles (air) northeast of Oroville 263 Comment
  SEINET10549249  Cordylanthus pilosus subsp. bolanderi Lowell Ahart 1983-8-16 Ahart 4279 Butte Near Humboldt Rd, ca. 3 mi sw of Butte Meadows. Yellow Pine Forest; 1450 m. 1450 Comment
  SEINET12326795  Cordylanthus pilosus subsp. bolanderi Unknown 1983-1 4279 Butte near Humboldt Rd, ca 3 mi SW of Butte Meadows 1450 Comment
  CHSC25475  Cordylanthus pilosus subsp. hansenii L. Ahart 1977-6-16 1427 Butte Peter Ahart Ranch, Honcut. 50 Comment
  JEPS66510  Cordylanthus tenuis subsp. viscidus L. R. Heckard and T. I. Chuang 1971-8-15 2767 Butte South entrance Manzanita Street (to Stirling City) 1066 Comment
  CHSC63246  Cornus glabrata Lowell Ahart 1994-6-5 7310 Butte In a small mountain meadow, south of the intersection of Black Bart Road and Forbestown Road, about 3 1/2 miles south-west of Forbestown. 609 Comment
  POM77913  Cornus glabrata C. C. Bruce 1897-05 1823 Butte Butte Creek. Comment
  CHSC31087  Cornus nuttallii Herb Allan McLane 1980-4-25 21 Butte 20 ft. n of Ponderosa Way, Plumas National Forest. 670 Comment
  UCD117253  Cornus nuttallii Sue Wagener 1955-5-28 78 Butte Powelton, on Diamond Match Road ca. 5 miles north of Lovelock, Stirling City area. 1127 Comment
  SEINET10453480  Cornus nuttallii Mary Susan Taylor 1975-4-17 Taylor 480 Butte Corner of Arcadian and Sacramento Streets, Chico. 61 Comment
  CHSC50830  Cornus sericea subsp. sericea Vernon Oswald; Lowell Ahart 1990-7-19 4365 Butte Slope on the south side of Philbrook Creek, ca. 3 mi east of Philbrook Reservoir, ca. 0.3 mi west of the Plumas County line. 2011 Comment
  RSA712760  Cornus sessilis L. P. Janeway, Matt Brown 2005-5-17 8392 Butte Plumas national Forest; along un-named creek 0.5 km west of Cedar Creek, 2.8 km north-northwest of its mouth at North Fork Feather River. 1097 Comment
  JEPS106093  Coronilla varia Lowell Ahart 2004-6-22 11121 Butte On the west side of Doe Mill Road, about 1 mile southeast of the bridge across Butte Creek, about 2 1/2 miles (air) southeast of Forest Ranch, about 5 miles (air) southwest of Stirling City 713 Comment
  RSA700215  Coronilla varia L. Ahart 2004-6-22 11121 Butte On the west side of Doe Mill Road, about 1 mile southeast of the bridge across Butte Creek, about 2 1/2 miles (air) southeast of Forest Ranch, about 5 miles (air) southwest of Stirling City. 714 Comment
  CDA24603  Corydalis caseana T. C. Fuller 1962-7-11 9204 Butte 0.2 mile east of Jonesville. 0 Comment
  CAS-BOT-BC401860  Corydalis caseana subsp. caseana E. B. Copeland 1929-7-3 365 Butte Jonesville 1500 Comment
  CAS-BOT-BC401861  Corydalis caseana subsp. caseana E. B. Copeland 1929-7-3 365 Butte Jonesville 1500 Comment
  SEINET10483826  Cotoneaster pannosus Lowell Ahart 1991-6-19 Ahart 6661 Butte Along the Dan Beebe Trail in Lake Oroville Recreation Area, between Canyon Drive and Oroville Dam Blvd. East, southwest of Oroville Dam. Foothill Woodland. T19N R4E c/s/S2. 213 Comment
  CHSC44467  Cotula australis Lowell Ahart 1988-11-27 5927 Butte Near the south-west corner of Wells Fargo Bank, Gridley. 28 Comment
  SEINET10473724  Cotula coronopifolia Mary Susan Taylor, D. Hemphill 1981-3-18 Taylor 100 Butte T23N R4E east center third sec 30 Paradise SE quad; Open serpentine ridge nnw of Sawmill Peak, off Ponderosa Way (Jordan Hill Rd), ca. 1 air mi ne of Magalia; 2300-2400 ft. 701 Comment
  CHSC112709  Crassula aquatica Lowell Ahart 2013-10-26 19213 Butte On the south side of Philbrook Creek, below the high water line (strand) of Philbrook Reservoir. 1681 Comment
  CHSC26728  Crassula aquatica M. S. Taylor; M. Hayes 1978-4-14 1553 Butte On e side of Williams Rd, ca. 1/4 mi n of Pentz Rd, on Butte College campus, ca. 15 mi s of Chico. 30 Comment
  JEPS98453  Crassula aquatica Lowell Ahart 2000-5-21 8379 Butte 10 mi NW of Oroville (slickens from the Cherokee mine, E side of Clark Road (Hwy 191), 200 yds S of Dry Creek) 60 Comment
  CHSC90630  Crassula tillaea Lowell Ahart; Paul Maslin, John Dittes 2005-3-17 11662 Butte Big Chico Creek Ecological Reserve. About 50 yards south of the fence, on the east side of the very poor dirt road, about 1/8 mile northwest of the Indian Cave, about 3/4 mile west of Big Chico Creek, about 4 1/2 miles (air) northeast of Chico. 481 Comment
  CHSC106606  Crataegus monogyna L. P. Janeway 2011-4-20 10235 Butte Sacramento Valley. Lower Bidwell Park, Chico; near northwest edge of the park, near Vallombrosa Ave between Madrone Ave and Crister Ave. 73 Comment
  CHSC82512  Crucianella angustifolia Lowell Ahart; John Dittes, Josephine Guardino 2002-6-21 9754 Butte On the south side of a poor dirt road, Watson Ridge, about 2 miles (air) northeast of Bald Rock Dome, about 5 miles (air) north of Feather Falls (the town). Comment
  CHSC84052  Crucianella angustifolia Lowell Ahart 2003-5-26 10214 Butte On the west side of North Honcut Creek, about 2 1/2 miles north and 2 2/3 miles east of Honcut, about 12 miles southeast of Oroville. 60 Comment
  JEPS103336  Crypsis schoenoides Lowell Ahart 2002-10-17 10000 Butte On the 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
  UCD59826  Crypsis schoenoides H. L. Mason 1945-9-19 12729 Butte Gray Lodge Game Refuge, northwest of Pennington. Comment
  JEPS108768  Cryptantha affinis Lowell Ahart 2006-7-16 13000 Butte On the west side of the poor dirt road, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1524 Comment
  UC179680  Cryptantha affinis A. A. Heller 1914-6-22 11489 Butte Chico Meadows 1219 Comment
  SEINET10870092  Cryptantha affinis Lowell Ahart, Peter Ahart 1984-6-10 Ahart 4708 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown; Yellow Pine Forest; 700 m. 700 Comment
  CHSC78127  Cryptantha flaccida Lowell Ahart 2000-6-6 8452 Butte On the bottom of an old gold mining pit, east of where the dirt road crosses Oregon Gulch creek, about 1/4 mile northeast of the cemetery, about 1 1/2 mile south of Crystal Hill, about 5 miles (air) east of Oroville Dam. 304 Comment
  CHSC42696  Cryptantha intermedia Lowell Ahart 1987-5-6 5573 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
  CHSC37405  Cryptogramma acrostichoides R. A. Schlising 1982-6-30 4313 Butte E of Inskip and SE of Jones Meadow in NE part of county. 1783 Comment
  CHSC43577  Cryptogramma acrostichoides Vernon Oswald; Lowell Ahart 1987-8-5 3179 Butte Near Humboldt Peak. 2151 Comment
  CHSC3014  Cupressus fastigiata Carl Pejsa 1958-4-19 33 A Butte Bidwell Park Forestry Station. Comment
  CHSC7190  Cupressus macnabiana F. Kimball 1969-4-23 67 Butte Roadsides of Coutolenc Rd. 0.3 mi n of Paradise-Stirling City Skyway, 0.5 mi n of Magalia. 762 Comment
  NY16719  Cupressus macnabiana C. B. Wolf 1934-10-5 6161 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
  SEINET11739306  Cupressus macnabiana Unknown 1979-1 8 Butte 0.5 mi N of Magalia on coutelenc, 100 ft. E of Skyway 732 Comment
  CHSC3600  Cupressus nevadensis Gerry Carrauthers 1966-3-5 30 Butte 1/2 mi W. of 99E. Freeway on Highway 32. E. of city of Chico. Comment
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Jul 25 2018
  CHSC40220  Cuscuta californica Lowell Ahart 1985-6-17 5066 Butte 120 yards south of the dirt road, Lumpkin Ridge, 1 1/2 miles east of Camp 18, about 8 miles northeast of Feather Falls. 975 Comment
  JEPS121891  Cuscuta campestris Lowell Ahart 2014-11-24 19918 Butte About 80 feet below the high water line of Lake Oroville, about 700 yards east of the second parking area, old Bidwell Bar Road, about one mile south of Oroville Quincy Highway, about 8 miles (air) northeast of Oroville. Comment
  SEINET10837235  Cuscuta indecora Mary Susan Taylor 1980-6-7 Taylor 2791 Butte S side of Hwy 162, at Butte County/ Glenn County border, ca. 20 mi N of Chico. 30 Comment
  JEPS118062  Cuscuta pentagona Lowell Ahart 2011-8-17 17627 Butte About 10 yards north of the trail, north of the crossing and on the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 203 Comment
  POM76966  Cycladenia humilis Mrs. R. M. Austin, C. C. Bruce 1898-05 s.n. Butte Doc Mill Comment
  CHSC42336  Cycladenia humilis var. humilis L. P. Janeway 1987-6-27 2336 Butte Ridge overlooking Little Kimshew Cr to the east; 0.6 mi north of Ramsey Bar along the Concow Rd. 1432 Comment
  CHSC78827  Cycloloma atriplicifolium Lowell Ahart 2000-10-15 8708 Butte North of a large pond on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CHSC28503  Cymopterus terebinthinus var. californicus M. S. Taylor; J. Jokerst 1979-7-21 2160 Butte On Humboldt Peak, at Humboldt Summit. 2133 Comment
  CHSC41555  Cynodon dactylon R. L. Ondricek-Fallscheer 1982-5-26 136 Butte In yard of house on plateau at sw end of Flatiron Ridge, ca. 3 1/2 mi wsw of Paradise. 192 Comment
  JEPS116005  Cynodon dactylon Lowell Ahart 2009-6-19 15932 Butte West of the trail, on the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 203 Comment
  CHSC32142  Cynoglossum grande L. Ahart 1975-4-1 731 Butte Trail head to Feather Falls near Feather Falls community. 487 Comment
  CHSC4515  Cynoglossum grande C. Glascock 1965-3-2 265 Butte Ca. 150 yds wsw of police firing range on Chico Canyon Rd., Chico. Comment
  UC480667  Cynoglossum occidentale H. F. Copeland 1930-7-16 Butte ridge above hotel Jonesville Comment
  CHSC116743  Cynosurus echinatus Lowell Ahart 2016-5-24 20871 Butte On the west side of a large drainage, about 50 yards north of the ditch, about 150 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. 44 Comment
  SEINET10518396  Cynosurus echinatus K. Henegar 1969-5-15 Henegar 55 Butte Upper Bidwell Park, near Big Chico Creek at Bear Hole. Shaded area, sandy soil. Comment
  CHSC31690  Cyperus difformis L. Ahart 1974-10-20 666 Butte Peter Ahart Ranch, Honcut. 45 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
  SEINET13709788  Cyperus difformis Lowell William Ahart, Lowell William Ahart 2002-1 9930 Butte E Side Cherokee Rd., 1 Mi. N of Oroville (39 Deg 31'49.5"N, 121 Deg 33'15"W) 427 Ft. 130 Comment
  CAS-BOT-BC114601  Cyperus eragrostis Ira L. Wiggins 1928-9-9 s.n. Butte Sandy Gulch Creek, 3 miles west of Chico. Comment
  CHSC28616  Cyperus eragrostis M. S. Taylor 1979-10-3 2223 Butte In Butte Creek Canyon, ca 1/4 mi upstream from bridge corssing Butte Creek at Helltown Rd, ca. 15 mi e of Chico. 243 Comment
  JEPS115191  Cyperus eragrostis Lowell Ahart 2009-6-19 15950 Butte About 30 yards south of the fence and about 100 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 269 Comment
  UC589979  Cyperus eragrostis H. S. Yates 1936-8-14 6123 Butte 10 mi. s. Durham; Chico Quad. 30 Comment
  UC838658  Cyperus eragrostis Lewis S. Rose 1939-6-11 39277 Butte 6 mi. e. Honcut 137 Comment
  UCSC000115  Cyperus eragrostis H. S. Yates 1936-8-19 6121 Butte 10 miles south of Durham - Chico 30 Comment
  CAS-BOT-BC114600  Cyperus eragrostis L. P. Janeway 1987-9-7 2582 Butte Chico E side, along Forest Ave between Little Chico Creek and I. 20th St. 82 Comment
  UCD141069  Cyperus eragrostis L. P. Janeway 1996-5-27 4980 Butte along Durham-Pentz Road 0.7 mile east of Clark Road. 118 Comment
  CHSC45126  Cyperus erythrorhizos Vernon Oswald 1987-7-8 3099 Butte Butte Creek Reserve, on the north side of Butte Creek east of the Skyway, east of Chico. 74 Comment
  UC1100518  Cyperus erythrorhizos Herbert L. Mason 1945-9-19 12738 Butte Gray Lodge Game Refuge n.w. Pennington; Gray Lodge Game Refuge Comment
  JEPS98501  Cyperus flavescens Lowell Ahart 2000-8-23 8664 Butte On the margins of a small pond, about 1/2 mile west of Pacific Heights road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. 42 Comment
  JEPS98603  Cyperus niger Lowell Ahart 2000-6-17 8482 Butte In seeps, ca 1/4 mile NE of Kunkle Reservoir, E of the Pentz Magalia Road, ca 2 miles S of Paradise. 548 Comment
  CHSC68392  Cyperus odoratus L. P. Janeway 1987-9-7 2583 Butte East side of City of Chico; along Forest Avenue between Little Chico Creek and East 20th Street. Along road at beginning of curb and gutter. 70 Comment
  CHSC113428  Cyperus squarrosus Lowell Ahart 2014-7-7 19576 Butte North of the bog, Coon Hollow, about 2 miles (air) north of Philbrook Reservoir. 1690 Comment
  CHSC40904  Cyperus squarrosus Lowell Ahart 1985-11-7 5232 Butte About 80 feet below the high water line of Lake Oroville, on the bottom of the South Fork of the Feather River, about 300 yards north-west of the Ponderosa Dam. 277 Comment
  JEPS94767  Cyperus squarrosus Lowell Ahart 1998-7-18 8037 Butte about 7 air mi n of Oroville (about 1/2 mi n of the ione oak tree, about 1/2 mi n of the cow chute along Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 408 Comment
  UC600705  Cyperus squarrosus H. F. Copeland 1930-7-29 1351 Butte neighborhood of Jonesville 1828 Comment
  RSA725029  Cyperus strigosus L. Ahart 2006-9-11 13299 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
  CHSC97182  Cystopteris fragilis Lowell Ahart 2007-5-22 13919 Butte About 1/8 mile south of Bald Rock Dome, on the west side of Dome Trail, trail leads to the Middle Fork of the Feather River, about 200 yards northeast of trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Big Bald Rock, about 16 miles (air) northeast of Oroville. 844 Comment
  UCD136366  Cystopteris fragilis M. S. Taylor 1980-4-1 2417 Butte Along S side of Butte Creek, ca. 1/4 mi. downstream from Honey Run Covered Bridge, ca. 6 mi. E of Chico. 121 Comment
  CHSC28140  Damasonium californicum J. D. Jokerst 1979-5-6 215 Butte Ditch. Cox Ln, 0.8mi w. of intersection with Palermo Honcut Hwy. Comment
  RSA21490  Damasonium californicum Carl B. Wolf 1937-5-14 8672 Butte Sacramento Valley; 5 miles NW of Chico on Hamilton City Road. 46 Comment
  UC725452  Damasonium californicum A. A. Heller 1940-5-13 15617 Butte field 3 mi. w. Chico Comment
  CAS-BOT-BC189852  Danthonia californica Lowell Ahart 1983-6-21 4093 Butte Sierra Nevada. Along Bloomer Hill Road, ca. 1.25 mile west of the Oroville Quincy Highway, ca. 15 miles northeast of Oroville. 450 Comment
  CHSC42901  Danthonia californica var. americana Lowell Ahart 1987-7-8 5812 Butte Near a stream, along Walker Plains Road, about 1/8 mile north of Coyote Gap, about 5 miles east of Pulga. 1280 Comment
  JEPS117179  Danthonia californica var. americana Lowell Ahart 2010-9-21 17230 Butte On damp bare disturbed soil, bottom and sides of a small wash, on the north side of a poor dirt road, about 1 mile (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir 1899 Comment
  CHSC6079  Danthonia unispicata B. Wilson 1968-4-19 164 Butte 2 mi s of Cherokee, on Table Mountain. Comment
  CHSC5967  Darmera peltata M. MacArthur 1968-6-17 184 Butte SE edge of Big Chico Creek just below Headhouse, Chico State College campus. 60 Comment
  UCD126512  Datura ferox L. Ahart 1976-9-24 1208 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC39491  Daucus pusillus Lowell Ahart 1983-6-21 4077 Butte Along Bloomer Hill Road, about 3/4 mile west of the Oroville Quincy Highway, about 15 miles north-east of Oroville. 425 Comment
  CHSC4562  Delphinium C. Glascock 1965-5-23 433 Butte Foothill Blvd 0.2 mi. e of its intersection with Oro-Bangor Hwy. Along roadside, Oroville. Comment
  CAS-BOT-BC8795  Delphinium gracilentum Lowell Ahart 1980-4-7 2070 Butte Along Swedes Flat Road, near Bangor 320 Comment
  CAS-BOT-BC8575  Delphinium hansenii Mrs. J. H. Morrison 1932-6-5 s.n. Butte Durham Comment
  CAS-BOT-BC10102  Delphinium hesperium subsp. pallescens A. A. Heller 1922-5-9 13623 Butte between Butte Creek and Nelson Comment
  CHSC78092  Delphinium nudicaule Caleb E. Casey 1999-3-4 Butte Upper Bidwell Park, below bluffs on south side of Bear Hole. 304 Comment
  UC765797  Delphinium recurvatum R. F. Hoover 1937-5-18 2231 Butte 2 mi s Nelson Comment
  CHSC53297  Delphinium variegatum R. O. Gilpatrick 1970-3-20 19 Butte Found 1 mile S. on Bruce Rd. from intersection of Humboldt Rd., Chico. N.W. side of road. Comment
  RSA725062  Delphinium variegatum L. P. Janeway 2006-4-30 8570 Butte Cascade Range Foothills, E edge of City of Chico, NW side of Humboldt road 2.2km NE of Bruce Road. 146 Comment
  POM150574  Delphinium variegatum E. B. Copeland 1903-5-2 3251 Butte Chico Comment
  POM99307  Delphinium variegatum C. C. Bruce 1897-03 1918 Butte [No location data on label] Comment
  CHSC52946  Delphinium variegatum subsp. variegatum Arlene Petlock 1982-4-17 97 Butte S side of Hwy 162 ca. 0.1 mi e of jct Hwys 99 and 162, ca. 10 mi s of Chico. 60 Comment
  CAS-BOT-BC82876  Dendromecon rigida Mrs. J. H. Morrison 1932-5-30 s.n. Butte Durham. Comment
  UC726213  Dendromecon rigida A. A. Heller 1938-6-14 15150 Butte along the Feather River Hwy about 1 mi w Jarboe Pass (about 20 mi from Oroville) 609 Comment
  SEINET10448610  Dentaria californica Mary Susan Taylor 1973-1 Taylor 48 Butte Upper Bidwell Park, Chico. Associates: Stipa pulchra, Lasthenia chrysostoma, Layia fremontii. 61 Comment
  SEINET10448603  Dentaria pachystigma var. dissectifolia Mary Susan Taylor 1981-4-14 Taylor 3535 A Butte 3400 ft. T23N R4E nw sec 36, Pulga SW quad. S side of Ponderosa Way (Rim Rd) around low rise off logging spur rd around a landing in the open, ca. 1/10 mi N of its jct with Concow Rd, ca. 2 mi N of Lake Concow, ca. 3/4 mi S of Flea Mt. 1036 Comment
  SEINET10841534  Dentaria pachystigma var. dissectifolia Mary Susan Taylor 1981-4-14 Taylor 3534 Butte T22N R4E east central third of sec 12, Pulga SW quad. Serpentine ridge on W side of Ponderosa Way (Rim Rd), ca. 2 mi N of Jarbo Gap on Hwy 70, ca. 20 air mi n of Oroville. 3000 ft. 914 Comment
  SEINET10507361  Deschampsia cespitosa Mary Susan Taylor 1978-6-24 Taylor 1663 Butte Montane Meadow, on N side of Old Humboldt Road, across the road from Butte Meadows; Yellow Pine Forest. 1372 Comment
  CHSC6095  Deschampsia danthonioides A. R. Jaegel 1968-4-21 121 Butte In ditch, 10 yds. below Horseshoe Lake, Bidwell Park, Chico. Comment
  CAS-BOT-BC201739  Deschampsia elongata Lowell Ahart 1984-6-10 4700 Butte About 2 miles south-west of the Forbestown Diversion Dam, north-east of Forbestown 700 Comment
  CAS-BOT-BC201740  Deschampsia elongata Lowell Ahart 1977-6-16 s.n. Butte Peter Ahart Ranch, Honcut. Near North Honcut Creek Comment
  CAS-BOT-BC201741  Deschampsia elongata Lowell Ahart 1987-7-8 5792 Butte Along Big Bar Mountain Road, about 3 miles south-west of Coyote Gap, south-east of Pulga 1280 Comment
  CHSC4594  Dicentra formosa C. Glascock 1965-6-12 434 Butte Ca. 34 mi. ne of Oroville on the Old Quincy Rd; ca. 50 yds n of road. Comment
  CAS-BOT-BC402384  Dicentra formosa subsp. formosa A. A. Heller 1915-6-11 11965 Butte Chico Meadows in the Sierra Nevada 1219 Comment
  CAS-BOT-BC402388  Dicentra formosa subsp. formosa H. F. Copeland 1920-8-29 156 Butte Jonesville woods 1219 Comment
  CHSC19655  Dicentra peregrina K. R. Stern 1966-5-14 Butte Chico. Comment
  CHSC19658  Dicentra spectabilis K. R. Stern 1965-7-23 2195 Butte Chico. Comment
  CAS-BOT-BC254524  Dichanthelium acuminatum subsp. acuminatum Lowell Ahart 1983-6-26 4138 Butte Along Ponderosa Way, ca. 14 miles NE of Oroville. Along the edges of the E Fork of Canyon Creek 500 Comment
  UCD111668  Dichelostemma capitatum Christopher Mallek 2008-1 HW1- 12 Butte Magalia. 756 Comment
  UCD139229  Dichelostemma capitatum Richard Sannar 1982-3-23 30 Butte south end of 18th street, about .25 mile south State route 162 in Thermalito. Comment
  CHSC2094  Dichelostemma capitatum subsp. capitatum N. Maxwell 1929-3-4 Butte Salmon Hole. 121 Comment
  CHSC3856  Dichelostemma capitatum subsp. capitatum L. E. Dunkel 1965-3-14 6 Butte Ca. 50 yards w of Chico Rod and Gun Club building in Upper Bidwell Park. 35 Comment
  UCD105288  Dichelostemma capitatum subsp. capitatum Robert E. Preston 2007-3-23 2418 Butte Ca. 3.7 mi NW of Oroville on NW side of PG and E substation. 45 Comment
  RSA333553  Dichelostemma capitatum subsp. capitatum Craig Martz, Richard F. Sannar 1982-3-23 32 Butte South end of 18th Street, about 0.25 mile S of State Route 162 in Thermalito. 150 Comment
  RSA333574  Dichelostemma capitatum subsp. capitatum Craig Martz, Richard F. Sannar 1982-3-16 23 Butte Along Cherokee Road, 0.5 mile N of intersection with Oregon Gulch Road, near South Table Mountain, N of Oroville. 450 Comment
  CAS-BOT-BC483262  Dichelostemma capitatum subsp. pauciflorum John Thomas Howell 1962-6-16 37549 Butte Magalia, Sierra Nevada 731 Comment
  CHSC4083  Dichelostemma multiflorum J. E. Bowlin 1967-4-21 27 Butte Ca. 3 feet n of Humbug Rd. and ca. 2.2 miles e of corner of Skyway and Humbug Rd., Chico. 60 Comment
  CHSC7132  Dichelostemma multiflorum J. Borgstrom 1969-5-2 23 Butte Ca. 100 yds e of 99E and Neal Rd, on Neal Rd, 3 ft. off of s side of rd. 39 Comment
  SD111968  Dichelostemma multiflorum Barbara Ertter, Lowell Ahart, Jeffrey Strachan 1980-5-6 3271 Butte Peter Ahart Ranch, ca. 2I(c) miles north-northeast of Honcut, between Oroville and Marysville. Dried vernal pool previously plowed as grainfield, now reverted, very rocky. 29 Comment
  SEINET10472710  Dichelostemma multiflorum Mary Susan Taylor 1981-4-5 Taylor 3488 Butte T21N R4E se sec 2; Berry Creek quad. E side of Dark Canyon Rd, 2.2 mi s of its jct with Big Bend Rds, ca. 3 air mi s of Jarbo Gap on Hwy 70, n of Oroville. Steep rock wall; 1400 ft. 427 Comment
  CHSC82641  Dichelostemma volubile Tara Morgan 2002-5-7 54 Butte Within the burn area of the 2001 Yankee Hill Fire within the area of Yankee Hill along Yankee Hill Rd. off of Highway 70 east of Lake Oroville. 481 Comment
  CAS-BOT-BC502523  Dichelostemma volubile R. F. Hoover 1936-5-21 1171 Butte Cana Comment
  SEINET10533886  Dichelostemma volubile A. Arthur Heller 1915-4-20 Heller 11848 Butte Thickets in the digger pine and oak belt, 2 miles below Centerville in the Sierra foothills, associated with Ceanothus, Aesculus and Toxicodendron in the blue oak-digger pine belt, where it is rather common. Comment
  SEINET12044674  Dichelostemma volubile L. S. Rose 1933-1 33195 Butte Bangor 267 Comment
  JEPS95153  Digitaria ischaemum Lowell Ahart 1997-10-25 7945 Butte Oroville, at the Butte County Historical Society Museum Butte County Historical Society Museum; Oroville, Butte County Historical Society Museum 60 Comment
  CAS-BOT-BC150253  Diplacus Grace Kermode 1899-6-9 s.n. Butte Sandy Gulch, Chico Comment
  CHSC3345  Diplacus grandiflorus Robert L. Smith 1966-5-17 5 Butte Honey Run Rd. 2 miles W of Paradise. Comment
  SEINET13751508 Image available Diplacus grandiflorus Margaret J. Williams, Wayne Roderick 1984-1 84- 24 -1 Butte Feather River Canyon, Hwy 70, near Arch Rock Tunnel. Comment
  CAS-BOT-BC153211  Diplacus kelloggii Rimo Bacigalupi 1962-6-16 s.n. Butte Nelson Bar 213 Comment
  CHSC44810  Diplacus kelloggii R. Banchero 1980-4-13 113 Butte Along the bluffs 0.7 mi NW of the Covered Bridge, ca 6.8 mi E of Chico. 304 Comment
  CHSC90152  Diplacus kelloggii Terril Wolt 1970-3-4 2 Butte Found on north side of Concow Creek where it empties into Lake Oroville, 16 mi north of Oroville. Comment
  CAS-BOT-BC153210  Diplacus kelloggii Lowell Ahart 1969-4-8 s.n. Butte Swedes Flat Road, near Bangor 1200 Comment
  SEINET215109  Diplacus kelloggii R. J. Planck 1963-1 28 Butte Ragdump Rd, 4 mi E of Stirling City log pond Comment
  CAS-BOT-BC154040  Diplacus torreyi E. B. Copeland 1929-7-18 462 Butte Jonesville 1550 Comment
  CAS-BOT-BC154039  Diplacus torreyi F. W. Peirson 1926-6-21 6778 Butte High ridge east of Butte Meadow, Humboldt Road Comment
  CAS-BOT-BC154174  Diplacus tricolor Peter H. Raven 1963-5-8 18360 Butte On State Highway 32, 5 miles west of Chico Comment
  SD111941  Diplacus tricolor Barbara Ertter, J. Strachan, L. Ahart 1980-5-8 3312 Butte Pater Ahart Ranch ca 2-1/2 mi NNE of Honcut between Marysville and Oroville, oatfield 29 Comment
  CHSC106283  Dittrichia graveolens L. P. Janeway 2010-11-23 10221 Butte Sacramento Valley. Oroville; gravelly flat on northern edge of the south levee of the Feather River, just east of Centennial Park. 60 Comment
  CHSC108044  Dittrichia graveolens L. P. Janeway 2011-10-21 10773 Butte Sacramento Valley. East edge of Hwy 99 at north corner of Durham-Pentz Road overpass fill slope. 52 Comment
  JEPS115045  Dittrichia graveolens Lowell Ahart 2007-10-30 14506 Butte Both sides of Lower Wyandotte Road, about 2 1/2 miles (air) northeast of Palermo, about 4 1/4 miles (air) southeast of Oroville 129 Comment
  CAS-BOT-BC136232  Dodecatheon alpinum H. F. Copeland 1929-6-10 1215 Butte Jonesville 1524 Comment
  UC175531  Dodecatheon hendersonii A. A. Heller 1913-3-9 10686 Butte two mi n Oroville; n of Oroville Comment
  SEINET12329564  Downingia bella Unknown 1984-1 4587 Butte T17N, R4E. Peter Ahart Ranch, ca 1.5 mi N and 0.5 mi E of Honcut, ca 12 mi S of Oroville. Valley 50 Comment
  SEINET12319544  Downingia bicornuta Unknown 1980-1 18 Butte N of Chico. T23N, R1W, Sec. 4. (Richardson Spgs. NW quad, 7.5') 58 Comment
  JEPS105996  Downingia cuspidata Lowell Ahart 2004-4-4 10725 Butte Bottom of a vernal pool, about 1/4 mile east of Wilber Road, east of the high hill crossed by Wilber Road, pasture, about 3 miles (air) west of Thermalito 48 Comment
  JEPS123830  Downingia insignis Lowell Ahart 2015-4-24 20058 Butte About 1 1/4 miles north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. Comment
  JEPS103648  Downingia montana Lisa Schultheis 1995-7-15 250 -95 Butte Butte Meadows. N side of Humboldt Road, off of Rt. 32, just W of entrance to Boy Scout Camp Lassen. 0.3 mile E of Butte Meadows National Forest Campground Comment
  CHSC111381  Downingia ornatissima var. ornatissima Lowell Ahart 2012-5-2 17965 Butte On the bottom of a small vernal pool, about 30 yards west of the Easter Cross Parking Lot, Upper Bidwell Park, about 1 mile east of Chico. 89 Comment
  RSA325019  Draba verna L. Ahart 1984-2-27 4497 Butte Peter Ahart Ranch, NE of Honcut, ca 12 miles S of Oroville. 50 Comment
  CHSC48460  Draperia systyla Vernon Oswald 1983-7-19 876 Butte Skyway, 1.3 mi s of Inskip. Growing on a dry forest floor in yellow pine forest. 1432 Comment
  CHSC109669  Drymocallis glandulosa var. glandulosa Lowell Ahart 2012-6-28 18241 Butte On the north side of Big Chico Creek, east of Sycamore Pool, Lower Bidwell Park, Chico. 61 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
  UCD80276  Dryopteris arguta CNPS SN Foothill Team 2005-4-6 SNFN 0097 a Butte CDFG North Table Mountain Wildlife Area, Coal Canyon. 377 Comment
  POM120873  Dryopteris arguta C. C. Bruce 1897-05 s.n. Butte Butte Creek. Comment
  SEINET10449678  Dudleya cymosa Mary Susan Taylor 1981-5-15 Taylor 3735 Butte T22N R5E sw/nw sec 18, Pulga SW quad. N side of Feather River Hwy 70, at Plumas National Forest boundary, ca. 2 mi NE of Jarbo Gap. 2000 ft. 610 Comment
  CHSC116141  Dysphania botrys Lowell Ahart 2015-10-26 20594 Butte Strand of Lake Oroville, on the west side of the West Branch of the Feather River, about 1 mile (air) southeast of Kunckle Reservoir, about 5 miles (air) southeast of Paradise. 207 Comment
  JEPS120583  Dysphania pumilio Lowell Ahart 2013-11-18 19272 Butte Below the high-water line of Lake Oroville, about 200 yards east of the boat ramp at the end of Stringtown Road, about 2.5 air miles northeast of Hurleton. Comment
  UC1131534  Echinochloa crus-galli H. S. Yates 1936-8-14 6120 Butte 10 mi s Durham; Chico Quad. Comment
  UCD41384  Echinochloa crus-galli E. Dean; with J. Ditomaso and E. Healy 2001-8-20 855 Butte Biggs UC Field Station. North of town of Biggs, W of jct of Hwys 99 and 162. North side of Hamilton Road, ca. 1/8 mile E of jct with Riceton Hwy. Along second north-south running dirt road leading N into rice fields, at intersection with first east-west running dirt road, corner of rice field. 30 Comment
  SEINET10934804  Echinochloa crus-galli Mary Susan Taylor 1975-10-3 Taylor 931 Butte At bridge over Little Chico Creek on River Road, ca. 10 mi W of Chico; Ripar ian Woodland disturbed area. 37 Comment
  SEINET10552489  Echinochloa oryzoides Crampton 1963-9-9 CRAMPTON 6887 Butte Butte County, 5 miles NW of Biggs, Biggs Rice Experiment Station. Comment
  UCD60732  Echinochloa walteri E. M. Johnston 1915-1 W- 152 -J Butte Biggs. Comment
  CDA4582  Eclipta prostrata L. Ahart 1999-9-21 8268 Butte Along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. Comment
  CHSC44295  Egeria densa V. Oswald 1988-6-8 3363 Butte Small pond in the Oroville Wildlife Area on the west side of the Feather River between the levels of Walnut and Biggs Ave. 32 Comment
  CHSC31681  Elatine ambigua Lowell Ahart 1974-5-1 449 Butte Peter Ahart Ranch, Honcut. Valley Grassland. 45 Comment
  JEPS120760  Elatine ambigua Lowell Ahart 2013-9-20 19061 Butte About 100 yards west of the railroad, about 400 yards south of the Rice Experiment Station buildings, about 2 miles SE of Richvale. Comment
  JEPS122151  Elatine californica Lowell Ahart 2014-4-30 19420 Butte About 50 yards south of the Lower Honcut Road, about 50 yards west of the Railroad, about 1 3/4 miles (air) southeast of Honcut. Comment
  CHSC45276  Elatine heterandra Vernon Oswald 1988-4-5 3269 Butte Harter's Cherokee Ranch located on the w side of Hwy 99 between Hwy 149 and Dry Creek. 45 Comment
  SEINET10836546  Eleocharis Mary Susan Taylor 1978-6-24 Taylor 1668 Butte Montane Meadow, on N side of Old Humboldt Road, across the road from Butte Meadows; Yellow Pine Forest. 1372 Comment
  CHSC116026  Eleocharis acicularis Lowell Ahart 2015-10-20 20566 Butte On the west side of the Feather River, about half way of and east of One Mile Pond, about 6 miles (air) east of Biggs. 26 Comment
  CDA38955  Eleocharis acicularis var. acicularis L. Ahart 2000-9-15 8691 Butte North of a large pond on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. Comment
  CHSC38903  Eleocharis acicularis var. occidentalis Vernon Oswald 1983-5-22 524 Butte Upper Bidwell Park, Chico, 75 ft n of Upper Park Rd. and 75 ft w of the road leading to the North Rim Trail. 91 Comment
  CHSC43524  Eleocharis acicularis var. occidentalis Lowell Ahart 1980-6-15 2381 Butte Along the edge of a large wash, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 45 Comment
  UCD49689  Eleocharis acicularis var. occidentalis L. Ahart 2000-9-15 8691 Butte Normal sized plants, on wet bare sand, north of a large pond on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CHSC97253  Eleocharis atropurpurea Lowell Ahart 2007-8-19 14489 Butte About 2 1/4 miles (air) southeast of Honcut, about 13 miles (air) southeast of Oroville. 49 Comment
  CHSC31664  Eleocharis bella L. Ahart 1980-9-8 2594 Butte Bottom of a small wash in one of the pasture fields, ca. 1.5 mi n and 1.5 mi e of Honcut. Peter Ahart Ranch, Honcut. 50 Comment
  JEPS104924  Eleocharis decumbens Dean W. Taylor 1995-8-6 15395 Butte 5 air mi NE of Stirling City, meadow 0.5 mi E of Bald Mountain summit 1706 Comment
  CHSC71199  Eleocharis engelmannii Lowell Ahart 1998-6-30 8014 Butte Southwest margins of a large seep, southwest of the lone oak tree, west of the cow chute on the west side of Cheorkee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  JEPS98509  Eleocharis engelmannii Lowell Ahart 2000-10-21 8712 Butte About 100 feet north of Hamilton Road, about 1/8 mile east of Riceton Road, Rice Experiment Station northwest of Biggs, 2 1/4 miles (air) north of Biggs. 30 Comment
  SEINET7585972 Image available Eleocharis engelmannii Lowell Ahart 2003-6-23 10302 Butte Peter Ahart Ranch, about 300 yards east of Palermo Honcut Highway, about 2 1/8 miles north of Honcut, about 12 miles south of Oroville. 30 Comment
  CHSC45131  Eleocharis macrostachya Vernon Oswald 1987-7-20 3139 Butte Butte Creek Reserve on the s side of Butte Creek, n of the Skyway, between the dam for Crouch Ditch and the double set of transmission lines. 82 Comment
  JEPS103568  Eleocharis montevidensis Lowell Ahart 2002-6-7 9710 Butte On the S side of North Honcut Creek, Peter Ahart Ranch, ca 1 mile N and 2 3/4 miles E of Honcut, ca 12 miles (air) SE of Oroville. 38 Comment
  CAS-BOT-BC113114  Eleocharis obtusa Lowell Ahart 1981-9-19 3186 Butte Cresta Power House 550 Comment
  CHSC68441  Eleocharis pachycarpa L. P. Janeway 1987-6-8 2164 Butte Along French Creek Road across from the mouth of Ram Creek. 617 Comment
  SEINET10466927  Eleocharis palustris Lawrence P. Janeway 1991-6-7 Janeway 3992 Butte Honcut quad T18N, R4E, SW 1/4 of sec 33, elev.100 feet. 30 Comment
  SEINET7586923 Image available Eleocharis parishii Lowell Ahart 2000-5-30 8409 Butte About 1/4 mile northeast of Kunkle Reservoir, east of the Pentz Magalia Road, about 2 miles south of Paradise. 549 Comment
  CHSC96094  Eleocharis quadrangulata L. P. Janeway 2006-7-19 8816 Butte Sacramento Valley. Waterfowl brood pond on shallow arm of Thermalito Afterbay, 225 m east of Wilber Road, 2.1 km south of Hwy 162. 41 Comment
  RSA0046897  Eleocharis quadrangulata Richard Carter 2006-7-31 17113 Butte Ca. 4 airmiles S Oroville jct. Hwy CA 70 and Hwy CA 162, Oroville Wildlife Area. Comment
  SEINET7587007 Image available Eleocharis quinqueflora Lowell Ahart 2000-6-29 8542 Butte On the northwest side of Concow Road at Flea Meadow, about 1/2 mile west of Flea Mountain, about 3 1/2 miles (air) north of Concow Reservoir, about 5 miles (air) east of Magalia. 1036 Comment
  SEINET7587014 Image available Eleocharis quinqueflora Lowell Ahart 2000-5-23 8386 Butte 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. 55 Comment
  CHSC78928  Eleocharis radicans Lowell Ahart 2000-10-2 8700 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
  CHSC68449  Eleocharis suksdorfiana L. P. Janeway; R. A. Schlising, B. Castro, Pauleen Broyles 1987-7-19 2499 Butte Coon Hollow, 1.0 mi southeast of the Humbug Summit Road. Meadows on north side of the creek. 1661 Comment
  CHSC45318  Eleusine indica Vernon Oswald 1988-8-30 3695 Butte California State University, Chico, along Mansion Ave. 59 Comment
  CHSC49574  Elymus elymoides subsp. californicus Vernon H. Oswald 1983-6-22 731 Butte Near Calif. Hwy. 32 11.7 mi n-e of Forest Ranch. 1143 Comment
  JEPS94307  Elymus elymoides subsp. californicus Lowell Ahart 1997-8-1 7782 Butte about 8 air mi ne of Stirling City (near some small streamlets of Little Kimshew Creek, in Snow Meadow, about 1/4 mi e of Table Mountain); Snow Meadow 1524 Comment
  CHSC102158  Elymus glaucus subsp. glaucus Lowell Ahart 2009-5-30 15794 Butte On dry soil, on the east side of Big Chico Creek, about 30 yards south of the gate, on both sides of north side of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway32, about 10 miles northeast of Chico. 269 Comment
  CDA31733  Elymus multisetus A. A. Beetle 1941-6-27 2740 Butte 20 miles northeast of Chico 0 Comment
  SD34470  Elymus multisetus A. A. Beetle 1941-6-27 2740 Butte 20 miles northeast of Chico Comment
  UCD62442  Elymus multisetus John Thomas Howell 1962-6-15 37528 Butte Magalia. 731 Comment
  RSA718076  Elymus trachycaulus subsp. subsecundus L. Ahart 2006-7-16 12999 Butte on northwest edge of Willow Creek, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1516 Comment
  CAS-BOT-BC409191  Enemion occidentale A. A. Heller 1919-3-29 13093 Butte Feather river near Yankee Hill Comment
  CHSC10547  Enemion occidentale Lowell Ahart 1970-3-18 Butte Swede's Flat Road, near Bangor. 121 Comment
  CHSC32668  Enemion occidentale M. S. Taylor 1981-3-24 3448 Butte S side of Hwy 70, ca. 100 ft w of Poe Dam, ca. 1/2 e of Pulga. Comment
  CAS-BOT-BC410230  Enemion occidentale Lowell Ahart 1980-3-26 2053 Butte Unspecified. Comment
  CAS-BOT-BC410231  Enemion occidentale Flower Shaw 1929-4-1 s.n. Butte Unspecified. Comment
  CHSC33246  Epilobium brachycarpum Mary Banchero; R. Schlising 1979-9-2 Butte 6 mi NE Forest Ranch on Hwy 32; roadside fill. Comment
  SEINET6635812 Image available Epilobium brachycarpum H. F. Copeland 1923-1 404 Butte Nelson Comment
  CHSC100797  Epilobium campestre R. A. Schlising 1986-9-27 4506 Butte E end of Paradise Lake, N of Paradise and Magalia. 762 Comment
  CHSC105262  Epilobium campestre Lowell Ahart 2010-6-20 16826 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
  CHSC38571  Epilobium canum subsp. latifolium Vernon Oswald 1982-10-22 4 Butte Bidwell Park, Chico. E end of Centennial Ave at the locked gate leading to the Police Pistol Range. On face of cliff. 85 Comment
  SEINET6637245 Image available Epilobium ciliatum subsp. ciliatum H. F. Copeland 1923-1 920 Butte Nelson Comment
  UC600555  Epilobium ciliatum subsp. glandulosum H. F. Copeland 1932-7-21 Butte near Kennedy's Meadow; Jonesville Comment
  CHSC117317  Epilobium densiflorum L. P. Janeway 2016-8-8 12143 Butte Northern High Sierra Nevada. Plumas National Forest; about 300 m south of Road 22N27 (Lumpkin Ridge Road) at the southern end of Lumpkin Ridge. 1282 Comment
  CHSC26743  Epilobium glaberrimum subsp. glaberrimum M. S. Taylor; M. Hayes, R. Schlising 1977-8-17 1468 Butte In meadows along Julie's Creek, between Old Humboldt Rd and Butte Creek, ca. 3.4 mi e of Butte Meadows. 1341 Comment
  CHSC46571  Epilobium hallianum Vernon H. Oswald 1989-7-18 3866 Butte Jonesville Rd between Humboldt and Humbug roads, just se of where the road crosses Scotts John Creek. In a meadow on the north side of the road. 1737 Comment
  CHSC46579  Epilobium hornemannii subsp. hornemannii V . Oswald; L. Ahart 1989-7-21 3877 Butte Southwest branch of upper Butte Creek, ca. 0.7 mi (air) se of Summit Lake, ca. 4.5 mi (air) se of Jonesville. On the edge of the creek. 1828 Comment
  CHSC32842  Epilobium minutum William Askea 1981-4-22 13 Butte Ca. 100 m w of Butte Creek and 1.2 km n of Magalia Reservoir, 2.5 km n of Magalia. 730 Comment
  CHSC54304  Epilobium minutum Vernon H. Oswald; Lowell Ahart 1991-6-5 4646 Butte Dirt road to Minnie-Ha-Ha Mine located on Big Chico Creek, on the west side of Hwy 32 ca. 1.5 miles (air) northwest of Platte Mtn Lookout, between Forest Ranch and Lomo. 701 Comment
  SEINET10841085  Epilobium minutum Lowell Ahart 1984-6-8 Ahart 4674 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; Yellow Pine Forest; 475 m. 475 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
  CHSC46582  Epilobium oregonense Vernon H. Oswald 1989-7-18 3864 Butte Humboldt Rd east of Butte Meadows, just e of the Butte Creek Bridge at Cherry Hill. Near the downstream corner of a meadow bordering Butte Creek. 1389 Comment
  UC172853  Epilobium pallidum A. A. Heller 1912-5-23 10750 Butte n Oroville; Table Mountain Olive Ranch Comment
  CHSC103720  Epilobium torreyi Lowell Ahart 2010-5-14 16659 Butte Area of erosion control, Disc Golf Area, about 100 yards west of the entrance to the Disc Golf Area, about 120 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 372 Comment
  UCD18875  Epilobium torreyi Vernal Pool Team 2001; Carol Witham and Jennifer Buck 2001-5-3 183 Butte Off of Hwy 99, 2 mi. north of its intersection with Hwy 149, Book Family Farm, Book Ranch Site, pool # BOO072, UTMs: 10S0611198; 4386920. Comment
  CHSC8750  Epipactis gigantea S. Chulasmai 1961-4-30 38 Butte Heloepine Spring (Upper Bidwell Park). 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
  SFV2  Equisetum arvense M. L. Vincent 1962-4-15 180 Butte Sierra Nevada 1 mile south of Stirling City on the Skyway near small stream. 975 Comment
  CHSC39211  Equisetum hyemale subsp. affine M. S. Taylor 1983-3-13 5244 Butte Community of Pulga, off n side of Hwy 70, ca. 20 mi ne of Oroville. 487 Comment
  CAS-BOT-BC33516  Equisetum laevigatum Edwin Bingham Copeland 1930-6-24 403 Butte Jonesville 1500 Comment
  CHSC60937  Equisetum laevigatum Lowell Ahart 1993-6-26 7012 Butte About 1/4 mile west of the Lost Creek Reservoir. 1036 Comment
  JEPS116131  Equisetum laevigatum Lowell Ahart 2009-5-15 15685 Butte On the east side of Big Chico Creek, about 50 years west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west Highway 32, about 10 miles northeast of Chico 203 Comment
  JEPS95928  Eragrostis cilianensis Lowell Ahart 1999-8-22 8187 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
  CAS-BOT-BC213614  Eragrostis mexicana subsp. virescens John Thomas Howell 1959-9-20 34683 Butte Eastern outskirts of Oroville, Sierra Nevada Comment
  CAS-BOT-BC284085  Eragrostis pectinacea var. pectinacea John Thomas Howell 1959-9-20 34687 Butte Eastern outskirts of Oroville, Sierra Nevada 60 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
  UCD65674  Eragrostis pilosa var. pilosa A. A. Heller 1914-8-20 11688 Butte 8 miles north of Oroville near the base of Table mountain. Comment
  CAS-BOT-BC298292  Ericameria nauseosa var. speciosa H. E. Brown 1896-11-15 46 Butte Near Clear Creek 53 Comment
  CHSC25440  Ericameria parryi var. latior Marc Hayes; Warner 1977-9-11 69 Butte Along Hunboldt Rd., exactly 4.2 miles from the junction of Hwy 32 and Butte Meadows Rd (Humboldt Rd.). 1219 Comment
  CHSC19722  Erigeron canadensis Lowell Ahart 1974-10-5 657 Butte North Honcut Creek, Peter Ahart Ranch, Honcut. 45 Comment
  CHSC88081  Erigeron divergens R. D. Fischer 2004-3-28 166 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located at base of cliffs below Disk Golf Course, above Guardian Trail. 304 Comment
  CAS-BOT-BC295773  Erigeron petrophilus var. sierrensis Walter S. Lennon 1974-1-1 s.n. Butte Near Pulga Comment
  JEPS100228  Erigeron petrophilus var. sierrensis Dean W. Taylor 2002-7-3 18216 Butte Fields Ridge, northerly rim South Fork Feather River canyon (ca. 3 air miles SE of Feather Falls mill site, ca. 19 miles E of Oroville) 1005 Comment
  CHSC37500  Erigeron sumatrensis J. D. Jokerst; L. Ahart, M. S. Taylor 1983-1-17 1677 Butte Top of North Table Mt. north of Cherokee Rd. Adjacent of basalt outcrop. 381 Comment
  CHSC30810  Eriodictyon californicum M. S. Taylor; J. D. Jokerst 1980-4-18 2532 Butte On e side of Humbug Rd, ca. 3 mi sw of Nimshew. 518 Comment
  CHSC38458  Eriodictyon californicum Vernon Oswald 1983-5-14 480 Butte Upper Bidwell Park, Chico, on the north rim ca. 1000 ft e of the power lines. 256 Comment
  JEPS26744  Eriodictyon californicum P. C. Hutchison 1961-6-9 2096 Butte Canyon of the North Fork of the Feather River along highway US Alt. 40, 1 mi s (above) Pulga Bridge; canyon of North Fork of the Feather River Comment
  SEINET10838767  Eriogonum lobbii Mary Susan Taylor 1980-6-14 Taylor 2872 Butte T21N R6E nw sec 29. Big Bend quad. Little Bald Rock, on granite dome, ca. 4 mi E of Lake Madrone. 1016 Comment
  RSA722693  Eriogonum luteolum R. R. Halse 2006-8-2 6983 Butte Chico. In the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  SD1343  Eriogonum marifolium E. B. Copeland 1930-7-12 Butte Above Jonesville; open fir woods 2000 Comment
  RSA0005066  Eriogonum marifolium var. apertum E. B. Copeland 1930-7-12 s.n. Butte Above Jonesville 610 Comment
  CAS-BOT-BC261717  Eriogonum nudum var. oblongifolium John Thomas Howell 1975-6-15 51120 Butte Paradise. Skyway near Clark Road 609 Comment
  CAS-BOT-BC269851  Eriogonum nudum var. pubiflorum Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  CAS-BOT-BC269850  Eriogonum nudum var. pubiflorum Gladys L. Smith 1976-6-5 4534 Butte Along banks of lower Feather River Canyon west of Belden 457 Comment
  POM306193  Eriogonum nudum var. pubiflorum Henry J. Ramsey 1939-10-16 s.n. Butte Oroville Comment
  CHSC59563  Eriogonum roseum Lowell Ahart 1992-9-20 2923 Butte Below the high water line of Lake Oroville, about 1/8 mile west of the Enterprise Boat Launch Ramp, about 3/4 mile south-west of Rocky Point. 243 Comment
  POM219384  Eriogonum spergulinum var. reddingianum H. F. Copeland 1931-6-10 1537 Butte Jonesville. In very dry ground in Colby Canyon. 1524 Comment
  CHSC69452  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-8-30 7882 Butte On the south side of the road to Forbestown Reservoir, west of Woodleaf Creek, 1/2 mile south of the Forbestown Reservoir Dam, about 4 miles (air) northeast of Forbestown. 609 Comment
  UC1594723  Eriogonum umbellatum var. nevadense Lowell Ahart 1992-7-29 6868 Butte about 1/2 mi nw Lotts Lake (about 1 mi e of the Carr Mine) 1828 Comment
  CAS-BOT-BC265210  Eriogonum umbellatum var. speciosum James L. Reveal 1975-8-24 3977 Butte Along California Highway 70 in Feather River Canyon at the turnoff to Pulga Comment
  CAS-BOT-BC265211  Eriogonum umbellatum var. speciosum John Thomas Howell 1951-8-19 28160 Butte 2 miles west of Pulga, Sierra Nevada 417 Comment
  RSA781351  Eriogonum ursinum Anna Kostikova, Glenn Litsios, Sarah Burgy 2010-7-1 150 Butte Humboldt road. Comment
  CHSC12920  Eriogonum vimineum K. R. Stern 1974-6-30 5777 Butte At roadside, 2.5 mi s of intersection of Hwy 32 and Butte Meadows turnoff, ca. 30 mi n of Chico. 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
  JEPS106049  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-BC262339  Eriogonum vimineum Lowell Ahart 1983-6-30 4181 Butte About 1/2 miles north-east of Concow Res. 550 Comment
  UCD101524  Eriogonum vimineum John Thomas Howell 1959-9-20 34615 Butte along Feather River near Oroville. 45 Comment
  CHSC19718  Eriogonum wrightii var. trachygonum Lowell Ahart 1974-9-30 636 Butte Found on a gravel bar along North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CAS-BOT-BC308159  Eriophyllum lanatum var. grandiflorum John Thomas Howell 1962-6-15 37523 Butte Magalia, Sierra Nevada 731 Comment
  CHSC40478  Eriophyllum lanatum var. grandiflorum Lowell Ahart 1985-5-15 4997 Butte West of a small dry stream, 1/8 mile east of the dirt road, about 1 1/2 miles north-east of Concow Res. 731 Comment
  RSA302658  Eriophyllum lanatum var. grandiflorum J. R. Shevock 1972-5-19 1781 Butte Hwy 70, Feather River Canyon. 610 Comment
  UC175162  Eriophyllum lanatum var. grandiflorum A. A. Heller 1913-5-28 10763 Butte 8 mi n Oroville (ditch along Table Mountain); Table Mountain 182 Comment
  UC896355  Eriophyllum lanatum var. grandiflorum A. A. Heller 1914-6-22 11484 Butte edge of a n slope at Little Summit Comment
  CHSC100872  Eriophyllum lanatum var. integrifolium L. P. Janeway; Linus Gog 2008-7-18 9437 Butte Northern High Sierra Nevada. Along Philbrook Creek between the east end of Philbrook Reservoir and Concow Road. 1689 Comment
  JEPS117915  Eriophyllum lanatum var. integrifolium L. P. Janeway & Linus Gog 2008-7-18 9437 Butte Along Philbrook Creek between the east end of Philbrook Reservoir and Concow Road Northern High Sierra Nevada 1689 Comment
  CHSC90176  Erodium botrys Robert Kissane 1989-4-18 10 Butte On Moore's ranch, 2090 Oak Park Ave., Chico. 70 Comment
  RSA726264  Erodium botrys R. R. Halse 2002-3-27 6154 Butte At the junction of State Highway 99 and Hamilton Nord Cana Highway. ca. 8 miles NW of Chico. 40 Comment
  UC204454  Erodium brachycarpum A. A. Heller 1914-3-21 11201 Butte 8 mi N of Oroville 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
  SEINET10495114  Erodium moschatum Mary Susan Taylor 1975-3-25 Taylor 420 Butte Chico. Comment
  CHSC23530  Eryngium castrense M. S. Taylor 1976-3-23 1033 Butte Ca. 10 ft s of corner of Broyles Rd and Hwy 99, ca. 11 mi n of Chico. 60 Comment
  UC600712  Erysimum capitatum H. F. Copeland 1931-6-10 1527 Butte woods between Willow Creek and Colby Creek; Jonesville 1524 Comment
  CHSC35763  Erysimum capitatum var. capitatum R. E. Preston 1982-6-18 306 Butte On roadcut on e side of Oro-Quincy Hwy; ca. 1.2 mi n of rd to Fourmile Ridge, ca. 3 mi ne of Brush Creek. 1036 Comment
  CHSC69724  Erythranthe floribunda Lowell Ahart 1997-10-24 7943 Butte About 200 yards north of the South Fork of the Feather River and on the east side of Sucker Creek, strand of Lake Oroville, about 1/4 mile west of the Ponderosa Dam. 274 Comment
  CHSC44685  Erythranthe glaucescens R. Banchero 1980-3-27 83 Butte Along Richardson's Springs Rd Ca 4 mi NE of its jct with Cohasset Hwy, Ca 1.3 mi W of the town of Richardson's Springs. 213 Comment
  CAS-BOT-BC292476  Erythranthe glaucescens Grace Kermode 1899-6-9 s.n. Butte Sandy Gulch, Chico. Comment
  SEINET8360340  Erythranthe glaucescens Sam M. Grossberg 1978-4-21 15 Butte ca. 100 yds wnw of Highway 32, 9.2 mi ne of Chico. 381 Comment
  CHSC90015  Erythranthe guttata Rebecca L. Hill 1990-4-19 13 Butte W side of the East Branch of Clear Creek, ca. 200 yds ne of Clear Creek Cemetery Road. Ca. 6 mi s of Paradise off of Clark Rd. 121 Comment
  CAS-BOT-BC151460  Erythranthe latidens Lowell Ahart 1978-5-1 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC151461  Erythranthe latidens A. A. Heller 1940-5-13 15615 Butte Field 3 miles west of Chico on State Highway #32 Comment
  CHSC3634  Erythranthe nasuta Alice L. Stoll 1966-2-28 30 Butte 7.9 miles N.E. of First and Main Streets, Chico. Salmon Hole, Upper Bidwell Park. Comment
  SEINET10469658  Erythronium cliftonii Mary Susan Taylor 1981-4-8 Taylor 3504 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
  SEINET10938447  Erythronium cliftonii Mary Susan Taylor 1979-3-19 Taylor 1925 Butte T23N R5E Pulga quad. In the vicinity of Pulga bridge over Feather River on Hwy 70, ca. 25 mi NE of Oroville. 488 Comment
  CHSC2267  Erythronium multiscapideum P. Delaplane 1965-5-4 54 Butte On S side of Concow Road. South side of Lake Concow. 1219 Comment
  CHSC3185  Erythronium multiscapideum Dona Kingsford 1966-5-1 Butte 23 miles SW of Chico and 1 mile S of Magalia. 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
  UC1485465  Erythronium multiscapideum M. S. Taylor 1981-4-8 3504 Butte serpentine ridge on n side logging landing site (just w of power lines off logging rd ca 1/2 mi w of its jct with Ponderosa Way (rd to Flea Valley), ca 5 mi n of its jct with Hwy 70); Pulga SW Quad 883 Comment
  CAS-BOT-BC504527  Erythronium multiscapideum A. A. Heller 1915-3-19 11774 Butte Hills 12 miles northeast of Chico near Rock creek Comment
  CAS-BOT-BC504540  Erythronium multiscapideum Jim Riley 1923-3-23 s.n. Butte About 3 miles above Centerville Comment
  POM219090  Erythronium multiscapideum H. F. Copeland 1928-4-3 350 Butte Near Magalia. Comment
  SEINET10971603  Erythronium multiscapideum Mary Susan Taylor, L. Hanson 1981-4-2 Taylor 3471 Butte T20N R7E ne sec 32; Clipper Mills quad. South side of Forbestown Reservoir, in serpentine cliff, south side of Rd 20N29, ca. 3 air mi north of Woodleaf. l800 ft. 549 Comment
  SEINET12048537  Erythronium multiscapideum Unknown 1984-1 11 Butte ca 1.8 mi S of Concow Res. & 100 yds W of Concow Rd 457 Comment
  CHSC103932  Eschscholzia caespitosa Lowell Ahart 2010-5-16 16696 Butte Basalt cliffs about 1/2 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 364 Comment
  CAS-BOT-BC402962  Eschscholzia californica Lowell Ahart 1980-5-12 2262 Butte Peter Ahart Ranch, Honcut 50 Comment
  CHSC1201  Eschscholzia californica P. Delaplane 1965-3-27 16 Butte In field on W. side of Cactus Ave at intersection of Manzanita, Chico. 30 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
  CAS-BOT-BC419502  Eschscholzia lobbii A. A. Heller 1938-4-14 15027 Butte Summit of Table Mountain Comment
  CHSC38579  Eschscholzia lobbii Vernon Oswald 1983-2-16 83 Butte Upper Bidwell Park, Chico, on the north rim ca. 1.4 mi e of the power lines. 304 Comment
  SJSU15292  Eschscholzia lobbii Lisa Morton 2002-3-30 13 Butte Upper Bidwell Park, Along N. Rim Trail on top of butte. 80 Comment
  SEINET12089321  Eschscholzia lobbii K. D. Johnson 1978-1 17 Butte North side of Skyway, 3.6 road mi E of California State Highway 99 overpass;.5 mi SE of Chico 152 Comment
  JEPS115504  Eucalyptus camaldulensis Lowell Ahart 2009-6-12 15843 Butte On the east side of the deep pen, about 50 yards north of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 130 yards east of Cedar Grove, Lower Bidwell Park, Chico 67 Comment
  SEINET10453755  Euphorbia crenulata Mary Susan Taylor 1980-5-8 Taylor 2615 Butte T24N R3E e half nw sec 33. Paradise quad. Ca. 3 mi N of Forest Ranch, ca. 1 mi E of Hwy 32; area soon to be deve loped; Yellow Pine Forest. 853 Comment
  SEINET10939887  Euphorbia ocellata Mary Susan Taylor 1975-10-3 Taylor 945 Butte Ca. 1/4 mile N of the Washout, between River Road and the Sacramento River, ca. 10 mi W of Chico. Riparian Woodland and sloughs, wet and humid. 37 Comment
  CHSC96222  Euphorbia peplus R. Fischer 2006-5-20 977 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east -side addition along Hwy. 32. Plants found along the access road to the southern Humboldt Trailhead, adjacent Hwy. 32. 313 Comment
  CHSC37100  Euthamia occidentalis L. Ahart 1982-9-12 3798 Butte Along North Honcut Creek, Peter Ahart Ranch, ca. 1 1/4 mi n and 3 mi e of Honcut. 50 Comment
  JEPS121967  Fallopia convolvulus Lowell Ahart 2014-7-7 19558 Butte About 5 yards east of the Skyway, about one-mile north of Stirling City. Comment
  SEINET10454411  Fatsia japonica Mary Susan Taylor Taylor 450 Butte Campus of the California State University, Chico. 61 Comment
  CHSC103996  Festuca arundinacea Lowell Ahart 2010-5-14 16640 Butte Along a trail in the Disc Golf Area, about 130 yards north of the entrance to the Disc Golf Area, about 40 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 398 Comment
  CHSC112688  Festuca arundinacea Lowell Ahart 2013-5-27 18717 Butte On the east side of Black Bart Road, about 3/4 mile (by road) southwest from the intersection of Forbestown Road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown. 731 Comment
  CHSC19641  Festuca arundinacea E. Parreno 1968-4-27 75 Butte Vacant lot behind Community Center on e 9th and Linden St., Chico. 59 Comment
  CHSC44535  Festuca arundinacea Lowell Ahart 1988-6-29 6104 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
  RSA300178  Festuca californica var. californica J. T. Howell, Gordon H. True 1967-6-11 42564 Butte On NW side of Feather River Canyon near Pulga Bridge. 427 Comment
  CHSC73888  Festuca occidentalis B. Castro 1997-6-13 740 Butte Mountain House proposed SIA. Ca 2 air mi NE of Brush Creek and 1.1 air mi E of Mtn. House, along the 'C' spur off USFS Rd 22N54, south of Mtn House Creek. 1082 Comment
  CHSC82473  Festuca occidentalis Lowell Ahart; John Dittes, Josephine Guardino 2002-6-21 9744 Butte On the north side of a poor dirt road, Watson Ridge, about 2 miles (air) northeast of Bald Rock Dome, about 5 miles (air) north of Feather Falls (the town). Comment
  SEINET10831660  Festuca occidentalis A. Arthur Heller 1913-6-7 Heller 10791 Butte Near Stirling. 1036 Comment
  CHSC61369  Festuca subulata Lowell Ahart 1993-7-23 7107 Butte On the sides of a stream, south of Fall River, about 1/8 mile south of the campgrounds on the large gravel bar along Fall River, about 6 (air) miles north-east of Feather Falls. 1036 Comment
  HSC95791  Festuca subulata L. Ahart 1997-7-11 7756 Butte Southeast of Cold Creek, 2 air mi. southwest of Bald Mountain, ~ 9 mi. by road from Stirling City, or ~ 2 air mi. northeast of Stirling City 1220 Comment
  CHSC52181  Ficus carica Pauleen Broyles 1987-5-21 1049 Butte Along the banks of Pine Creek. Comment
  JEPS117926  Fimbristylis autumnalis John Dittes 2003-10-8 845 Butte Undesignated section of Arroyo Chico Land Grant;ca. 6.0 air miles west by southwest of Chico ca. 2.3 air miles south of State Hwy 32, east Sacramento River, Bidwell-Sacramento River State Park; Northen Sacramento Valley Comment
  SEINET13711401  Fimbristylis autumnalis Lowell William Ahart, Lowell William Ahart 1999-1 8145 Butte 12 Air Mi SW of Chico, 2 Mi SE Ordbend Comment
  CHSC42909  Foeniculum vulgare Lowell Ahart 1987-7-12 5820 Butte Along North Honcut Creek, about 2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 64 Comment
  CDA5502  Foeniculum vulgare L. Ahart 2001-6-13 8816 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. Comment
  CAS-BOT-BC62907  Frangula californica subsp. tomentella A. A. Heller 1915-5-16 11869 Butte Chico-Centerville road 3 mi. from Chico. Comment
  CHSC33517  Frangula purshiana R. A. Schlising; R. Banchero, K. Tarp 1981-7-11 4142 Butte E of N fork Feather River at Coyote Gap region; on Four Trees Road. Comment
  CHSC109574  Frasera albicaulis var. nitida L. P. Janeway 2012-6-7 10863 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
  POM130462  Frasera albicaulis var. nitida Helen M. Edwards 1917-6-6 s.n. Butte De Sabla. Comment
  POM76517  Fraxinus latifolia C. C. Bruce 1897-03 1789 Butte Little Chico Comment
  CHSC35986  Fremontodendron californicum J. D. Jokerst 1982-5-15 1582 Butte Ca 2.5 airline miles SW of Berry Creek, ca 2.0 mi N of Oro-Quincy Hwy on Ponderosa Way. Comment
  CHSC19921  Fritillaria affinis M. S. Taylor 1975-3-3 403 Butte Ca. 1/4 mi n of Richardson Springs Camp, ca. 8 mi n of Chico. 91 Comment
  CAS-BOT-BC136069  Fritillaria affinis Flower Show 1929-4-1 s.n. Butte Flower show Comment
  CAS-BOT-BC130314  Fritillaria eastwoodiae L. C. Hanson 1987-4-15 s.n. Butte Forbestown Site, on road from Forbestown to Woodleaf Comment
  CAS-BOT-BC130318  Fritillaria eastwoodiae Frances Brown 1935-5-1 s.n. Butte Near Durham Comment
  SEINET8478820  Fritillaria eastwoodiae M. J. Williams 1967-4-15 s.n. Butte Near Magalia. 610 Comment
  UC726161  Fritillaria pluriflora A. A. Heller 1916-3-5 12278 Butte along the highway 10 mi n of Chico Comment
  CHSC49657  Fritillaria recurva Vernon Oswald 1984-5-9 1176 Butte Calif. Hwy 32, 12.0 mi n of Forest Ranch (between Forest Ranch and Lomo). 1158 Comment
  CHSC35216  Galium aparine M. S. Taylor 1981-5-14 3711 Butte N side of Four Mile Ridge, S of Sly Creek, ca. 1.5 mi NE of Mt House on Oroville-Quincy Hwy. 883 Comment
  CHSC54347  Galium aparine Lowell Ahart 1991-4-19 6646 Butte On the west side of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 2 and 3/4 miles east of Honcut, about 12 miles south-east of Oroville. 45 Comment
  SD4923  Galium grayanum subsp. grayanum E. B. Copeland 1930-7-25 474 Butte Jonesville, in crevices, dry rocky ridge 1700 Comment
  SEINET10500726  Galium nuttallii Mary Susan Taylor 1975-4-25 Taylor 495 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
  CHSC36511  Galium parisiense L. Ahart 1982-5-29 3446 Butte Peter Ahart Ranch, ca. 1.5 mi N and 2 1/4 mi E of Honcut. 50 Comment
  RSA718331  Galium parisiense L. Ahart 2006-6-9 12651 Butte On the E side of Bardees Bar Road. S of the small stream. About 1/4 mile SW of the poor bridge across the North Fork of the Feather River at Bardees Bar. About 2.75 miles (air) SW of Pulga. 404 Comment
  UC1143092  Galium porrigens C. G. Albertus 1933-6-6 23 Butte 1/4 mi w Pentz; Chico Quadrangle 137 Comment
  JEPS3276  Galium porrigens var. tenue Roxana S. Ferris 1952-5-16 12474 Butte 5 mi s Cherokee (on road to Oroville) 335 Comment
  CHSC77996  Galium tricornutum Lowell Ahart 2000-5-13 8453 Butte On the margin of the Thermalito Afterbay, on the south side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 42 Comment
  CHSC99567  Galium triflorum L. P. Janeway 2008-6-22 9430 Butte Northern High Sierra Nevada. Along Four Trees Road at crossing of South Branch Mill Creek (a tributary to North Fork Feather River); 2.7 air km east of Pulga Bridge (Hwy 70) over North Fork Feather River. On moist banks. 823 Comment
  CHSC21937  Garrya fremontii Robert A. Schlising 1974-9-17 3159 Butte Along Hwy 32, 9.4 mi NE of junction with Hwy 99 in Chico. Comment
  UC1122681  Garrya fremontii J. E. Sowder 1933-6-28 97 Butte 1.5 mi e Keefer's Old Mill; Chico Quad. 274 Comment
  CHSC42374  Gastridium phleoides Lowell Ahart 1987-5-27 5701 Butte On a sand bar along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC3194  Genista monspessulana Dona Kingsford 1966-3-31 Butte 1.2 miles from 4th. Street entrance of Bidwell Park. Comment
  UC463036  Gentiana newberryi E. B. Copeland 1931-7-21 Butte Jonesville 1500 Comment
  JEPS114965  Geranium carolinianum Lowell Ahart 2008-5-8 14721 Butte Below the high water line of Lake Oroville, about 50 yards east of the poor parking area, McCabe Creek area, about 3/4 mile southwest of the Enterprise Bridge, about 11 miles (air) east of Oroville 264 Comment
  JEPS107281  Geranium dissectum Lowell Ahart 2005-4-14 11704 Butte At the base of the railroad roadbed, east side of the railroad tracks, south of the railroad bridge, north of Spruce Street, Gridley 28 Comment
  RSA0028454  Geranium dissectum L. Ahart 2005-4-14 11704 Butte At the base of the railroad roadbed, east side of the railroad tracks, south of the railroad bridge, north of Spruce Street, Gridley. 28 Comment
  CHSC30298  Geranium molle M. S. Taylor 1980-5-27 2644 Butte Among grasses in parking lot, Big Bald Rock, ca. 3 mi e of Lake Madrone. 975 Comment
  CHSC38455  Geranium molle Vernon Oswald 1983-3-31 233 Butte Upper Bidwell Park, Chico, ca. 300 ft n of Upper Park Rd. near Parking Area R (Yahi Trail to Brown's Hole); about 2.3 mi e of the power lines. 243 Comment
  CHSC7107  Geranium molle James M. Watson 1969-4-4 7 Butte 2.1 mi e of Keefer Road and Cohasset Highway on s edge of Cohasset Highway. 182 Comment
  SBBG128083  Geranium purpureum L. Ahart 2008-5-12 14762 Butte E side of Ponderosa Way, ca. 1 mi SW of the Ponderosa Dam, ca. 2.25 mi NW of Forbestown 670 Comment
  SEINET12331812  Gilia capitata L. Ahart, Ahart, P. 1984-1 4748 Butte about 1.5 mi SE of Bald Mountain, 0.75 mi W of Oak Point, about 4 mi NE of Stirling City 1500 Comment
  POM264779  Gilia capitata subsp. mediomontana Lincoln Constance 1941-5-28 2827 Butte S Branch of the Feather River at Magalia, Sierra Nevada foothills. 488 Comment
  CAS-BOT-BC266584  Githopsis pulchella A. A. Heller 1937-5-31 15340 Butte Near the junction of Highway 24 and the Yankee Hill road, about 21 miles from Oroville Comment
  CAS-BOT-BC266588  Githopsis pulchella Roxana S. Ferris 1952-5-17 12485 Butte State Highway 32 about 6 miles E of Chico above Little Chico Creek Comment
  CDA11953  Githopsis specularioides G. F. Hrusa, J. Hart 1989-4-15 5917 Butte Sierra Nevada; Summit of North Table Mountain. Comment
  JEPS124255  Glinus lotoides Lowell Ahart 2015-10-26 20592 Butte About 1 mile (air) southeast of Kunckle Reservoir, about 5 miles (air) southeast of Paradise. Comment
  CAS-BOT-BC280564  Glyceria elata Lowell Ahart 1981-9-15 3174 Butte Along French Creek 1300 Comment
  SEINET10843174  Glyceria elata A. Arthur Heller 1928-7-10 Heller 14694 Butte Wet meadows at Butte Meadows in the yellow pine belt. Comment
  CDA6042  Gnaphalium luteoalbum G. D. Barbe, T. C. Fuller, P. W. Michael 1989-9-21 4367 Butte Rice Experiment Station, 3 miles north of Biggs on Highway 162. 0 Comment
  CHSC31594  Gnaphalium palustre L. Ahart 1972-6-21 115 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC69038  Gnaphalium palustre Lowell Ahart 1997-8-1 7798 Butte Along the edge of the dirt road and north of the camps along Little Kimshew Creek, about 1/4 mile north of the County Road, east of Bald Mountain, about 8 miles (air) northeast of Stirling City. 1219 Comment
  SEINET10474674  Gnaphalium palustre Mary Susan Taylor 1979-10-2 Taylor 2211 Butte Sacramento River Chico Landing and park, off River Road near the washout, ca. 5 mi W of Chico; Riparian Woodland. 30 Comment
  UC600633  Goodyera oblongifolia unknown 1924-8-10 857 Butte Jonesville Comment
  CHSC103931  Gratiola ebracteata Lowell Ahart 2010-5-16 16686 Butte On the bottom and sides of drainages and vernal pools, about 1/4 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 371 Comment
  CHSC34713  Grindelia hirsutula var. davyi M. S. Taylor 1981-7-10 4059 Butte North side of Feather River Hwy 70 at Pulga bridge, ca. 20 mi ne of Oroville. 487 Comment
  SEINET7728169  Gymnogramma triangularis Unknown Butte Chico Comment
  JEPS102325  Gypsophila elegans Lowell Ahart 2001-4-15 8726 Butte 4 air miles SW of Gridley (N side of dirt road E of the large pump, S side of Evans-Reimer Rd, 1 mi E of Pennington Rd, Gray Lodge Waterfowl Management Area) Comment
  RSA4125  Hackelia californica E. B. Copeland 1930-6-29 449 Butte Jonesville. 1550 Comment
  CHSC78224  Hainardia cylindrica Lowell Ahart 2000-5-17 8364 Butte Near the south margin of the Thermalito Afterbay, on the poor dirt road, about 1/10 mile north of the Richvale Highway, about 1/2 mile east of Highway 99, about 7 1/2 mioles (air) west of Oroville. 42 Comment
  JEPS113886  Hamamelis vernalis L. P. Janeway 2007-8-12 9155 Butte Northern High Sierra Nevada; Along old Berry Creek Road 1.6 road km N of Oroville-Quincy Hwy; 1.8 air km S of the mouth of Berry creek at North Fork Feather River (Lake Oroville); mostly above the road but also occasionally below. 421 Comment
  CHSC115059  Hazardia whitneyi var. whitneyi Don Lepley 2013-7-16 Butte Lassen National Forest, Almanor Ranger District. Between Road 26N11 and its B-spur, roughly 1-1/4 air miles southeast of Humboldt Peak. 1859 Comment
  CHSC86858  Hedera helix L. P. Janeway; Gavin Blosser 2003-9-3 7972 Butte Northern High Sierra Nevada. Along southwest edge of Ponderosa Reservoir 185 m south of Ponderosa Dam (South Fork Feather River). Around disintegrating structure. 299 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
  CHSC66431  Helenium puberulum Vernon H. Oswald; Lowell Ahart 1996-6-10 7737 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. On the bank of the Sacramento River at the N end of the Riparian Sanctuary. 28 Comment
  UC1609017  Helianthella californica subsp. nevadensis Lowell Ahart 1993-9-8 7171 Butte on top of ridge about 1 mi e Snow Mountain 2103 Comment
  CHSC11823  Helianthella californica var. nevadensis E. B. Copeland 1931-6-22 695 Butte Jonesville, at 'the Summit'. 2150 Comment
  POM55212  Helianthella californica var. nevadensis Kate Conger 1907-1 s.n. Butte Brush Creek. Comment
  CHSC20681  Helianthus bolanderi M. S. Taylor 1975-6-30 809 Butte In ditches on e side of Cohasset Hwy, ca. 2 mi n of Chico. 91 Comment
  UC134875  Helianthus bolanderi H. E. Brown Nov 15 1896-Nov 30 1896 126 Butte near Clear Creek 53 Comment
  CAS-BOT-BC134034  Heliotropium M. S. Taylor 1975-10-3 943 Butte Ca. 1/4 mi n of the washout, between River Rd and the Sacramento River, ca. 10 mi w of Chico 36 Comment
  JEPS96030  Heliotropium curassavicum Vernon H. Oswald and Lowell Ahart 1996-6-10 7748 Butte near U.S. Fish & Wildlife Service parcel between 7 Mile Lane & Sacramento R Sacramento R. Nat'l Wildlife Refuge (edge of farm rd. bordering slough e. side of Little Grant, near Riparian Sanctuary); , Llano Seco Unit 28 Comment
  SEINET10497652  Heliotropium curassavicum subsp. oculatum Mary Susan Taylor 1982-5-22 Taylor 4507 Butte T17N R2E nw/ne sec 19. Pennington quad. Graylodge Wildlife Refuge, near parking lot 6 on Rutherford Rd, e of Pennington Rd, ca. 12 mi sw of Gridley. 70 ft. 21 Comment
  CHSC28423  Heliotropium europaeum M. S. Taylor 1979-10-2 2212 Butte On sandbar in Sacramento River at Chico Landing, ca. 5 mi w of Chico. 30 Comment
  JEPS115652  Heliotropium europaeum Lowell Ahart 2009-8-13 16277 Butte In the channel, about 100 yards east of the diversion structure that controls Mud Creek diversion and Lindo Channel, northeast of Hooker Oak, Upper Bidwell Park, Chico 68 Comment
  UC478461  Hemizonella minima E. B. Copeland 1931-7-12 696 Butte ridge between Jones Creek and North Willow Creek; Jonesville 1700 Comment
  SEINET9340684  Hemizonia fitchii Unknown 1937-7-11 37380 Butte 7 mi W of Honcut Open field Comment
  UCD73011  Hesperevax acaulis Ayzik Solomeshch 2003-4-9 s. n. Butte Wurlitzer Reserve, about 10 mi. north from Chico on Hwy 99, west side of the road. Comment
  JEPS33802  Hesperevax caulescens W. L. Jepson 1932-5-9 16368 Butte 6 mi n Nord (e of Cana (a small station on the S.P. Railroad)) 45 Comment
  JEPS47390  Hesperevax caulescens L. R. Heckard, and Robert Ornduff, Hal Weidman 1966-4-27 1473 Butte field along US Hwy 99 about 11 mi se Chico Comment
  CHSC78153  Hesperolinon californicum Lowell Ahart 2000-5-17 8368 Butte Near the southeast margin of the Thermalito Afterbay, west of the poor dirt road, about 1/8 mile north of the Richvale Highway, about 3/4 mile east of Highway 99, about 7 1/4 miles (air) west of Oroville. 42 Comment
  JEPS127025  Hesperolinon micranthum Lowell Ahart 2016-6-4 20934 Butte On the west side of Ponderosa Way, about 1 mile (air) northwest of Sunset Hill, about 2 1/8 miles (air) northwest of Forbestown. Comment
  JEPS98429  Hesperolinon micranthum Lowell Ahart 2000-5-31 8427 Butte 3 mi SE of Paradise (just W of Lake Oroville, about 400 yds E of where Kunkle Creek enters Lake Oroville, E of the Kunkle Power House) 286 Comment
  RSA325952  Hesperolinon micranthum L. Ahart, P. Ahart 1983-6-21 s.n. Butte Along Bloomer Hill Rd., ca. 1.3 mi. w. of Oroville-Quincy Hwy., ca 15 mi. ne of Oroville. 450 Comment
  SEINET10840495  Heterocodon rariflorum Mary Susan Taylor 1978-7-21 Taylor 1828 Butte On S side of Oroville-Quincy Hwy, along creek and in meadow, ca. 14 mi N of Lake Madrone, ca. 24 mi NE of Oroville; Yellow Pine Forest. 1463 Comment
  SEINET10972530  Heterocodon rariflorum James D. Jokerst 1980-7-18 Jokerst 0996 Butte Top of North Table Mountain, about 100 mile northwest of the fct.(?) of Cherokee Road and the east edge of the mountain Comment
  SEINET7714837  Heterocodon rariflorum Unknown Butte Chico Comment
  CHSC13840  Heteromeles arbutifolia S. Posner 1972-10-12 Butte South slope Big Chico Creek, across from Golf Course, near firing range, Bidwell Park, Chico. Comment
  RSA0074384  Heterotheca grandiflora L. Ahart 2005-11-20 12491 Butte Along road, on the west side of the Poe Power House, east of North Fork of the Feather River. 276 Comment
  CHSC38673  Heuchera micrantha var. erubescens Vernon Oswald 1983-5-2 418 Butte Upper Bidwell Park, Chico, along the dirt road beside Chico Creek which leads to the Police Pistol Range on s side of the Golf Course. 91 Comment
  CHSC26676  Hibiscus lasiocarpos var. occidentalis M. S. Taylor; M. Hayes 1977-8-16 1441 Butte In small area on Clear Creek between the Organic garden and the man-made ponds, on Butte College Campus, ca. 15 mi s of Chico. 60 Comment
  SEINET10475086  Hieracium albiflorum Mary Susan Taylor 1975-9-12 Taylor 905 Butte Yellow Pine Forest, ca. 24 mi NE of Chico, ca. 500 m W of Hwy 32; with Torreya californica, Ceanothus prostratus. 1067 Comment
  CHSC88064  Hoita macrostachya R. D. Fischer 2004-6-12 150 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located at old cabin site, next to pond off the Annie Bidwell Trail, 150 ft s. of 10 Mile House Trail junction. 248 Comment
  CHSC34145  Holcus lanatus L. Ahart 1981-9-15 3156 Butte On sides of Pinkard Creek, ca. 1/2 mi n of Lost Creek Reservoir. 1100 Comment
  RSA0112643  Holocarpha virgata subsp. virgata Lowell Ahart 2013-9-5 19022 Butte On the west side of La Porte Road, about 1/4 mile southwest of Dunstone Drive, about 2 1/3 miles (air) northeast of Honcut. 40 Comment
  CAS-BOT-BC311883  Holozonia filipes A. A. Heller 1914-7-13 11565 Butte Mt. Ida Ranch, 10 miles east of Oroville Comment
  RSA550555  Hordeum brachyantherum L. Ahart 1981-5-24 2836 Butte Peter Ahart Ranch, ca. 1.5 mi. N and 1/15 mi. E of Honcut 50 Comment
  CHSC46274  Hordeum brachyantherum subsp. brachyantherum Vernon Oswald 1989-5-1 3755 Butte Butte Sink Wildlife Area (w portion of Schohr Ranch). Between the dike road and Butte Creek, ca. 1.3 mi n of Gridley-Colusa Hwy. 18 Comment
  CHSC61539  Hordeum brachyantherum subsp. brachyantherum Lowell Ahart 1993-5-15 6942 Butte Along the Cherokee Canal, near bridge of Biggs Princeton Road, about 3 miles west of Biggs. 30 Comment
  CHSC31417  Hordeum murinum subsp. leporinum L. Orme 1980-3-15 6 Butte .4 km. W. of railroad tracks, .8 km. SW. of Chico. Edge of a field. 54 Comment
  CHSC38824  Hordeum murinum subsp. leporinum Vernon Oswald 1983-3-5 114 Butte Upper Bidwell Park, Chico, at the edge of the turn-around on the road to the Horse Arena. 82 Comment
  CHSC42916  Hordeum murinum subsp. leporinum Lowell Ahart 1987-7-3 5782 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
  CHSC56633  Hordeum murinum subsp. leporinum J. M. Lund 1980-2-21 Butte Chico; south edge of East Avenue 0.2 mi east of Esplanade. On the edge of an orchard. 76 Comment
  CHSC36519  Horkelia tridentata L. Ahart 1982-5-8 3413 Butte On slope above the road, ca. 1/2 mi sw of the Forbestown Reservoir, ca. 4.5 mi ne of Forbestown. 800 Comment
  CHSC51993  Hydrocotyle umbellata B. Castro 1987-9-22 250 Butte S side of Pentz Rd ca 2.2 mi e of its jcn with Clark Rd. 115 Comment
  JEPS124324  Hydrocotyle umbellata Lowell Ahart 2015-10-20 20571 Butte About half way of and east of One Mile Pond, about 6 miles (air) east of Biggs. Comment
  CHSC102846  Hypericum anagalloides Lowell Ahart 2009-6-19 15922 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
  CHSC63819  Hypericum anagalloides S. C. Morey 1983-8-2 679 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  CHSC31583  Hypericum concinnum L. Ahart; 1371 1977-5-7 1351 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC46359  Hypericum concinnum Lowell Ahart 1989-5-23 6231 Butte Along the edge of a new subdivision road, 1/4 mile east of Dunstone Drive, about 1/2 mile north of Bangor Park Road, west of Bangor. 76 Comment
  CAS-BOT-BC312928  Hypochaeris glabra Lowell Ahart 1979-5-11 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  CHSC11955  Ipomopsis aggregata subsp. formosissima E. B. Copeland 1929-7-24 394 Butte Jonesville. 1550 Comment
  RSA137403  Iris hartwegii Lee W. Lenz, E. K. Balls 1957-5-23 22525 Butte State Highway 32, 6.9 miles south from Lomo, at junction with road from Butte Meadows 1037 Comment
  CHSC93187  Iris hartwegii subsp. hartwegii L. P. Janeway 1994-6-6 4659 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. 1158 Comment
  JEPS88861  Iris hartwegii subsp. hartwegii Carol A. Wilson 1992-5-18 92 -ph24 Butte 21 mi w Beldon (along Hwy 70, in Feather River Canyon); Feather River Canyon 426 Comment
  CHSC29031  Iris macrosiphon J. D. Jokerst 1980-3-28 526 Butte E of the northern most portion of North Table Mt. 365 Comment
  CHSC3250  Iris macrosiphon Virginia Hagaman 1966-3-28 82 Butte Covered Bridge in ravine at bottom of canyon. Comment
  CHSC40324  Iris macrosiphon Lowell Ahart 1985-3-22 4848 Butte Found about 1/2 mile northeast of the West Branch Bridge across Lake Oroville, 1/4 mile east of Highway 70, north of Oroville. 450 Comment
  HSC87295  Iris macrosiphon Bruce Hamren 1978-4-24 20 Butte Upper Miocene Canal 448 Comment
  UC143451  Iris macrosiphon Mrs. R. M. Austin Mar 1896 13 Butte Little Chico Creek Comment
  RSA135853  Iris macrosiphon Lee W. Lenz, E. K. Balls 1955-5-13 20694 Butte Ca. 1 mile from Pentz (west) on road to Highway 40 alt. 305 Comment
  SDSU1943  Isoetes bolanderi E. B. Copeland 1929-6-29 Butte Above Jonseville. 533 Comment
  CHSC29222  Isoetes nuttallii M. S. Taylor 1980-3-28 2404 Butte Just e of Chico, between Humboldt Rd, and Hwy 32, ca. 1/4 mi e of Forest Ave, ca. 1 1/4 mi e of Hwy 99. 76 Comment
  SEINET10530328  Isoetes nuttallii Mary Susan Taylor 1980-5-27 Taylor 2678 Butte T21N R6E sc sec 30. Big Bend quad. On Big Bald Rock, ca. 3 mi E of Lake Madrone; Yellow Pine Forest, large granite dome 998 Comment
  RSA606518  Isoetes nuttallii Jon E. Keeley 1981-4-11 7547 A Butte On the SE side of Kunkle Res, ca 1 mile S of Paradise. 600 Comment
  SEINET10530332  Isoetes nuttallii Mary Susan Taylor 1980-3-28 Taylor 2404 Butte T22N R2E north center border sec 30. Vernal pool area in Valley Grassland, just E of Chico, between Humboldt Rd, cand Hwy 32, ca. 1/4 mi E of Forest Ave., ca. 1.5 mi E of Hwy 99; area soon to be developed. With J.D. Jokerst. 76 Comment
  JEPS106164  Isoetes orcuttii Lowell Ahart 2004-4-4 10726 Butte Bottom of a vernal pool, about 1/4 mile east of Wilber Road, east of the high hill crossed by Wilber Road, cattle pasture, about 3 miles (air) west of Thermalito 48 Comment
  CHSC45183  Isolepis cernua Lowell Ahart 1984-5-12 4605 Butte Vernal pool, Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  JEPS98516  Isolepis setacea Lowell Ahart 2000-7-11 8564 Butte on the N side of Lumpkin Ridge Road, upper west branch of Know-nothing Creek, about 1 mile SW of the intersection of Lumpkin Ridge Road, road to Fall River, and the County Road, about 5 miles (air) NE of Feather Falls. 1219 Comment
  CHSC23691  Jensia rammii M. S. Taylor 1976-5-3 1102 Butte On Big Bald Rock, ca. 1/4 mi w of Bald Rock Rd, ca. 3 mi e of Lake Madrone, ca. 13 mi ne of Oroville. 997 Comment
  UCD133407  Jensia rammii L. Ahart 1976-4-15 1067 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC42079  Juncus balticus L. A. Hinman 1986-4-3 7 Butte Ca. 6.5 mi ne of Chico. NW side of Mud Creek, ca. 20 yd w of creek. 195 Comment
  CHSC4386  Juncus balticus M. Hillier 1966-5-30 Butte Near creek at s of Park Ave. Comment
  CHSC96946  Juncus balticus subsp. ater Lowell Ahart 2007-7-8 14266 Butte On the west side of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 53 Comment
  CHSC36969  Juncus bufonius var. bufonius M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4366 Butte Graylodge Wildlife Refuge, s of parking lot 1, ca. 1/2 mi ne of Headquarters, ca. 12 mi sw of Gridley. 19 Comment
  CHSC57154  Juncus bufonius var. bufonius J. D. Jokerst 1980-3-26 Butte East of Chico: 100 m northeast of junction of Skyway and Bruce Road. Comment
  CHSC6115  Juncus bufonius var. bufonius A. R. Jaegel 1968-4-19 152 Butte 1 mi s of Cherokee on Cherokee Rd. Comment
  CHSC96890  Juncus bufonius var. bufonius Lowell Ahart 2007-6-12 14082 Butte On the east side of Rockefeller Road, at the intersection of Bald Rock Road and Rockefeller Road, about 13 miles (air) northeast of Oroville. 1011 Comment
  JEPS113864  Juncus bufonius var. bufonius Lowell Ahart 2007-6-12 14082 A Butte On the east side of Rockefeller Road, at the intersection of Bald Rock Road and Rockefeller Road, about 13 miles (air) northeast of Oroville 1011 Comment
  JEPS114391  Juncus bufonius var. bufonius Lowell Ahart 2008-5-30 14791 Butte Along a small drainage, northwest part of the top of Big Bald Rock, about 14 miles (air) northeast of Oroville 976 Comment
  JEPS122033  Juncus bufonius var. bufonius Lowell Ahart 2014-7-7 19593 Butte On the south side of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  CHSC59018  Juncus bufonius var. occidentalis Lowell Ahart 1992-7-29 6882 Butte In a very small meadow, on rocky slopes, about 1 mile north-east of the Carr Mine, about 3/4 mile north-west of Lotts Lake. 1798 Comment
  JEPS103414  Juncus capitatus Lowell Ahart 2002-4-24 9535 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
  JEPS105998  Juncus capitatus Lowell Ahart 2004-4-4 10718 Butte On the fire guard, about 5 yards east of Wilber Road, north of the high hill crossed by Wilber Road, south of the wash, pasture, about 3 miles (air) west of Thermalito 48 Comment
  JEPS120831  Juncus cyperoides Lowell Ahart 2013-7-1 18820 Butte On the E side of Black Bart Road, about 3/4 mile by road SW from the intersection of Forbestown Road and Black Bart Road, 3.5 air miles SW of Forbestown. Comment
  CHSC73491  Juncus dubius B. Castro; L. Gehrung 1995-7-26 597 Butte Pinkard Meadow. Meadow along Pinkard Creek, ca 0.7 air mi W of Sly Creek Reservoir and 0.5 mi E of Mooreville Ridge, via a spur off USFS Rd 22N24.5. In center of moist meadow E of road. 1143 Comment
  CDA42851  Juncus effusus var. pacificus L. Ahart 2011-8-19 17637 Butte About 30 yards east of Know-nothing Creek, in low area on the north side of Lumpkin Ridge Road, about 1/2 mile southwest of the intersection of Lumpkin Ridge Road, County Road and road to Cascade, about 5 miles (air) northeast of Feather Falls. Comment
  CHSC102830  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
  CHSC50697  Juncus ensifolius Lowell Ahart 1990-5-25 6488 Butte Along a small stream, below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/8 mile north-west of the Enterprise Bridge across Lake Oroville. 259 Comment
  JEPS114775  Juncus ensifolius Lowell Ahart 2008-7-23 15142 Butte on the N side of the South Fork of the Feather River, about 10 yds W of where Sucker Creek enters the South Fork of the Feather River, below the high water line of Lake Oroville, about 1/4 mi W of the Ponderosa Dam 258 Comment
  UC1562429  Juncus ensifolius Lowell Ahart 1990-5-25 6488 Butte about 0.12 mi nw Enterprise Bridge across Lake Oroville (e of Enterprise Boat Launch Area, below the high water line of Lake Oroville); Lake Oroville 259 Comment
  CHSC94255  Juncus laccatus Lowell Ahart 2006-7-16 13012 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
  CHSC47556  Juncus leiospermus Lowell Ahart 1979-4-30 1854 Butte On the top of Table Mountain, near the large parking area, south-east side of the road, about 7 miles north of Oroville. 396 Comment
  CHSC31910  Juncus leiospermus var. ahartii L. Ahart 1974-4-24 423 Butte In small vernal pool. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC47564  Juncus leiospermus var. ahartii Lowell Ahart 1978-3-26 1620 Butte On the bottom and sides of vernal pools, Peter Ahart Ranch, about 2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CAS-BOT-BC110135  Juncus leiospermus var. leiospermus Lowell Ahart 1984-5-7 4589 Butte Near Kunkle Res., south of Paradise. 600 Comment
  CHSC84256  Juncus leiospermus var. leiospermus Lowell Ahart 2003-5-28 10230 Butte Edges of a large vernal pool, about 100 feet west of Hendricks ditch, about 1 3/4 miles northwest of the iron gate and fence, northwest of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 271 Comment
  JEPS122235  Juncus leiospermus var. leiospermus Lowell Ahart 2014-4-20 19381 Butte About 1/4 mile northwest of the parking area on the west side of Cherokee Road, about 7 miles (air) north of Oroville. Comment
  UC1543893  Juncus leiospermus var. leiospermus Lowell Ahart 1978-5-2 1703 Butte ca 7 mi n Oroville; Sierra Nevada, Table Mt. 400 Comment
  CHSC59022  Juncus nevadensis Lowell Ahart 1992-7-26 6859 Butte In a small meadow, about 1/4 mile northeast of the Carr Mine, about 2 (air) miles southeast of Snow Mountain. 1798 Comment
  UC1594619  Juncus nevadensis Lowell Ahart 1992-7-26 6859 Butte about 1/4 mi ne of the Carr Mine (about 2 air mi se of Snow Mountain) 1798 Comment
  UC600800  Juncus nevadensis H. F. Copeland 1930-7-25 Butte Jonesville Comment
  CHSC113956  Juncus orthophyllus Lowell Ahart 2014-7-16 19692 Butte Dry northwest part of a large wet meadow (some bog), about 30 yards east of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  POM110898  Juncus oxymeris C. C. Bruce, J. Bruce 1897-05 1884 Butte Chico ion Humboldt road Comment
  CHSC96881  Juncus tenuis Lowell Ahart 2007-7-11 14293 Butte About 100 yards west of the high gravel road (at turn, before washout), about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. 35 Comment
  JEPS113856  Juncus tenuis Lowell Ahart 2007-7-7 14262 Butte On the west side of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville 53 Comment
  JEPS116053  Juncus tenuis Lowell Ahart 2009-6-18 15910 Butte On the banks of a small wash, about 60 yards west of the dredger piles along North Honcutt Creek, about 2 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles southeast of Oroville 59 Comment
  CHSC96889  Juncus triformis Lowell Ahart 2007-6-12 14062 Butte Along swales, west of a high ridge on Big Bald Rock, about 14 miles (air) northeast of Oroville. 972 Comment
  SD243238  Juncus trilocularis Peter F. Zika 2011-7-6 25540 Butte Northern Sierra Nevada Highlands: above Oroville-Quincy Highway, 0.8 road miles S of Stevens Ridge Road, 2.5 air miles NE of Wild Yankee Hill. 829 Comment
  CHSC47572  Juncus uncialis Lowell Ahart 1974-4-11 364 Butte In a small vernal pool, Peter Ahart Ranch, about 2 1/4 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  JEPS115986  Juncus usitatus Lowell Ahart 2009-7-4 15999 Butte On the side of a pond, on the west side of the gravel road, about 100 yards south of parking lot 3, Gray Lodge Watefowl Management Area, about 6 miles (air) southwest of Gridley 21 Comment
  RSA727521  Juncus usitatus L. Ahart 2007-7-31 14401 Butte On the north side of Highway 162, at the intersection of Highway 162 and Wickman Road, about 3 miles (air) southwest of Richvale. 26 Comment
  CAS-BOT-BC80920  Juniperus californica Lowell Ahart 1983-4-10 3922 Butte about 1 1/2 miles north-east of HIghway 99 & Pentz Road 100 Comment
  CAS-BOT-BC235676  Keckiella breviflora var. glabrisepala A. A. Heller 1913-6-6 10785 Butte Ditch along Table Mountain 8 miles north of Oroville 182 Comment
  CAS-BOT-BC235680  Keckiella breviflora var. glabrisepala Mrs. C. C. Bruce 1898-5-1 2008 Butte Unspecified Comment
  CHSC1857  Keckiella corymbosa M. Underhill 1952-7-18 Butte Indian Marker for Richardson Springs. 243 Comment
  CAS-BOT-BC237821  Keckiella lemmonii Lowell Ahart 1983-7-24 4209 Butte On the road cutbanks at the Forbestown Res., about 5 miles north-east of Forbestown 450 Comment
  UC392182  Kelloggia galioides E. B. Copeland 1920-7-16 Butte Jonesville 1550 Comment
  CHSC113191  Kickxia elatine Lowell Ahart 2013-11-29 19293 Butte Below the high water line of Lake Oroville, about 250 yards west of the old road, about 3 1/2 miles (air) northeast of Oroville Dam. 225 Comment
  HSC97347  Kickxia elatine J. P. Smith, J. O. Sawyer 2007-9-2 12420 Butte Parking lot at observation platform at the Llano Seco Unit of the Upper Butte Basin Wildlife Area along Seven Mile Rd. Comment
  UCD123843  Kickxia elatine L. Ahart 1974-6-3 475 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31709  Koeleria phleoides Lowell Ahart 1974-4-14 412 Butte Peter Ahart Ranch, Honcut. 45 Comment
  JEPS117272  Koeleria phleoides Lowell Ahart 2010-5-14 16637 Butte Along the east side of the poor dirt road, parking area, about 100 yards north of the entrance to the Disc Golf Area, west side of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 394 Comment
  UC204878  Koeleria phleoides A. A. Heller 1914-5-19 11417 Butte Comment
  CHSC109148  Koelreuteria paniculata Lowell Ahart 2012-5-14 18066 Butte On the south side of the paved road, west of the horse trail, about 1/3 mile west of Peterson Drive, south of Vallombrosa Avenue, Lower Bidwell Park, Chico. 74 Comment
  CAS-BOT-BC340332  Kyhosia bolanderi H. M. Hall 1914-7-30 9815 Butte Near Jonesville Comment
  JEPS95527  Lactuca canadensis Lowell Ahart 1994-10-23 7568 Butte 4 mi W and 0.5 mi N of Stirling City (3 mi N of De Sabla reservoir) 853 Comment
  CHSC37528  Lactuca saligna M. S. Taylor; L. Ahart 1982-10-11 5151 Butte Graylodge Wildlife Refuge, near check-in station, sw jct of Pennington and Rutherford Rds, ca. 12 mi sw of Gridley. 21 Comment
  JEPS115713  Lactuca scariola var. integrata Lowell Ahart 2009-8-3 16251 Butte On the east side of Ten Mile House Road, just northeast of Guardians Trail, Upper Bidwell Park, about 1/4 mile west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  CHSC6020  Lagerstroemia indica M. MacArthur 1968-6-19 265 Butte SE side of Auditorium bld., Chico. 60 Comment
  CAS-BOT-BC341292  Lagophylla glandulosa John Thomas Howell 1962-6-15 37486 Butte Magalia 731 Comment
  CHSC25273  Lagophylla glandulosa M. S. Taylor 1977-6-27 1396 Butte Butte College campus, ca. 15 mi s of Chico. 30 Comment
  CHSC84326  Lagophylla glandulosa Lowell Ahart 2003-8-3 10465 Butte On the west side of North Honcut Creek, about 2 1/2 miles north and 2 2/3 miles east of Honcut, about 12 miles (air) southeast of Oroville. 60 Comment
  SEINET10474762  Lagophylla glandulosa Mary Susan Taylor 1977-8-16 Taylor 1438 Butte Abundant on both sides of Williams Road, N of its junction with Pentz Road, on Butte College Campus, ca. 15 mi S of Chico. With Marc Hayes. 61 Comment
  SEINET10839203  Lagophylla glandulosa Mary Susan Taylor 1980-7-6 Taylor 3058 Butte T23N R1E nw sec 20, Richardson Springs quad; ca. 1 mi E of Meridian Rd, ca. 1/4 mi NE of its jct with Hwy 99, ca. 8 mi N of Chico. With R.A. Schlising. 67 Comment
  CHSC38370  Lagophylla ramosissima subsp. ramosissima Vernon Oswald 1983-5-27 564 Butte Upper Bidwell Park. Chico, along the South Rim Trail between the Golf Course and the power lines. 121 Comment
  CHSC11371  Lamium amplexicaule Lowell Ahart 1962-3-10 Butte Peter Ahart Ranch, Honcut. 45 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
  CHSC274  Lasthenia californica H. Lowe 1963-3-15 Butte Stilson Canyon, Little Chico Creek. 91 Comment
  CHSC40551  Lasthenia californica Ahart; Jokerst 1985-3-24 4869 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
  CHSC45687  Lasthenia californica Vernon Oswald 1983-4-4 265 Butte Upper Bidwell Park, Chico, on the north rim ca. 2 mi e of the power lines. 390 Comment
  POM55160  Lasthenia californica E. B. Copeland 1903-4-10 3038 Butte Chico Comment
  SEINET11804897  Lasthenia chrysostoma M. J. Luesebrink 1978-1 2 Butte ca 300 ft N of Skyway Rd, 3.8 mi E of jct with Humbug Rd, 4.6 mi E of jct with Hwy 99, ESE of Chico 274 Comment
  JEPS107750  Lasthenia fremontii Lowell Ahart 2005-5-14 11811 Butte In a rice field, Peter Ahart Ranch, about 2 miles north and 1/4 mile east of Honcut, about 12 miles (air) southeast of Oroville 25 Comment
  UC1363794  Lasthenia fremontii Robert Ornduff 1958-4-19 4906 Butte 6 mi se of junction of Oroville-Chico Road with Hwy 99 e of Oroville-Chico Road Comment
  UC1562501  Lasthenia fremontii Barbara Ertter with Lowell Ahart 1986-4-13 5894 Butte ca. 2 airmiles nne Honcut (between Oroville and Marysville); Peter Ahart Ranch 30 Comment
  CAS-BOT-BC354116  Lasthenia fremontii A. A. Heller 1939-4-14 15379 Butte One mile N of Rock Creek along the county rd parallelling US Highway #99E. Comment
  RSA682149  Lasthenia platycarpha Richard R. Halse 2002-3-27 6152 Butte At the junction of State Hwy 99 and Hamilton Nord Cana Hwy, ca. 8 miles NW of Chico. 40 Comment
  SEINET10484229  Lathyrus Mary Susan Taylor 1981-5-21 Taylor 3759 Butte T22N R4E nw sec 15, Paradise SE quad. S side of Lake Concow, ca. 5 mi E of Paradise. Yellow Pine Forest; 2100 ft. 640 Comment
  CAS-BOT-BC213343  Lathyrus jepsonii subsp. californicus Helen M. Edwards 1917-6-1 s.n. Butte De Sabla Comment
  UC217238  Lathyrus nevadensis var. nevadensis H. M. Hall 1917-5-11 10293 Butte Keefer Mill, on Honey Run grade Keefer Ridge 731 Comment
  UC725530  Lathyrus nevadensis var. nevadensis A. A. Heller 1939-4-10 15373 Butte Comment
  CHSC23680  Lathyrus sulphureus M. S. Taylor 1976-4-27 1092 Butte Ca. 2 mi e of junc of Villas Rd and Cohasset Hwy, on n side of Ponderosa Way, ca. 23 mi ne of Chico. 609 Comment
  CHSC31837  Lathyrus sulphureus L. Ahart 1977-4-16 1308 Butte Peter Ahart Ranch, Honcut. Along the banks and sides of North Honcut Creek. 50 Comment
  JEPS117883  Lathyrus tingitanus L. P. Janeway 2008-4-2 9243 Butte Oroville along high flat bank on east side of Feather River between Thermalito Diversion Dam and the Fish Barrier Dam Northern Sierra Nevada Foothills 65 Comment
  CHSC90239  Layia fremontii Michael J. McNairn 1989-4-17 8 Butte Ca. 100 yds. ne of jct. Lupin Ave. and Ceres Ave., NE Chico. 76 Comment
  UC75375  Layia fremontii Copeland 1903-4-11 3039 Butte Chico Comment
  CAS-BOT-BC274350  Leersia oryzoides Willis Wheeler 1943-10-3 s.n. Butte Chico Foreign Plant Introduction Garden Comment
  CAS-BOT-BC274351  Leersia oryzoides John Thomas Howell 1959-9-20 34650 Butte Eastern outskirts of Oroville 60 Comment
  CHSC31633  Leersia oryzoides L. Ahart 1977-9-20 1574 Butte In North Honcut Creek, Peter Ahart Ranch, Honcut. 50 Comment
  CHSC66460  Leersia oryzoides Vernon H. Oswald; Lowell Ahart 1996-6-10 7760 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Near the center of the W side of Tract 7.1, Sanctuary 1. 33 Comment
  CHSC78401  Lemna minor Lowell Ahart 2000-7-23 8604 Butte Near a large pond on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CHSC49692  Lemna minuta Vernon Oswald 1987-3-20 2294 Butte West side of Hwy 99, 0.6 mi nw of Butte Creek. In a dredger pond. 67 Comment
  SEINET10466002  Lemna minuta Mary Susan Taylor 1982-4-28 Taylor 4371 Butte T17N R1E se/sw sec 14. Pennington quad. Aquatic in slough, ca. 1/2 mi s of HQ on Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 65 ft. 20 Comment
  CHSC108760  Leontodon saxatilis subsp. longirostris L. P. Janeway 2011-6-7 10367 Butte Sacramento Valley. Along Nelson Ave 1.0 road km west of its bridge over Thermalito Forebay, about 5.7 air km west of Oroville. Weedy edge of road side drainage. 99 Comment
  CHSC101831  Lepechinia calycina Lowell Ahart 2009-5-23 15759 Butte About 10 miles northeast of Chico, Upper Bidwell Park, about 1/4 mile west of the intersection of Highway 32 and Ten Mile House Road. On the east side of Guardians Trail by shrubs, about 150 yards southwest of Ten Mile House Road. 407 Comment
  CHSC3378  Lepidium perfoliatum Robert L. Smith 1966-4-23 35 Butte Paradise Dam SW side. Comment
  CAS-BOT-BC12846  Lepidium pinnatifidum Lowell Ahart 1981-7-26 3013 Butte Gray Lodge, southwest of Gridley. 35 Comment
  UCD115866  Lepidium pinnatifidum M. S. Taylor; L. Ahart 1982-10-11 5154 Butte Graylodge Wildlife Refuge, ca. 1/4 mi s of Rutherford Rd, on rd to parking lot 5, ca. 1/4 mi se of HQ, 12 mi sw of Gridley. 19 Comment
  UCSB64017  Lepidium pinnatifidum Ahart, Lowell 1981-7-26 Butte About 1/2 miles south of the Gray Lodge Waterfowl Management Headquarters, about 12 miles southwest of Gridley 30 Comment
  CHSC35012  Lepidium strictum R. E. Preston 1982-3-6 185 Butte Ca. 100 yds n of Horseshoe Lake, Upper Bidwell Park, Chico. 106 Comment
  SEINET10934951  Leptochloa fascicularis Lowell Ahart 1991-7-20 Ahart 6666 Butte On the east side of West Butte Road, about 1/2 mile south of North Butte Road. Valley Grassland. T17N R1E SE/S33. 21 Comment
  CHSC117322  Leptochloa fusca subsp. fascicularis B. Castro 2008-7-15 1759 Butte Sacramento Valley. Ca 2.5 mi W of Hwy 99 and 1.1 mi SE of Richvale, and ca 0.5 E of the Midway. Near jcn of Cherokee Canal, Southern Pacific RR and the Biggs Extension canal, along edge of rice field in adjacent ditch. 31 Comment
  CAS-BOT-BC274012  Leptochloa fusca subsp. uninervia Lowell Ahart 1986-11-14 5480 Butte About 1/10 mile south of the clay burrow for Oroville Dam, 1/4 mile east of Larkin Road, about 6 miles south-west of Oroville 36 Comment
  UC478475  Leptodactylon pungens E. B. Copeland 1931-6-22 682 Butte Jonesville; mountain top w of The Summit 2150 Comment
  CHSC29230  Leptosiphon bicolor M. S. Taylor 1980-4-16 2491 Butte Lake Oroville State Recreation Area, Parish Camp just south of Lime Saddle Memorial Park, ca. 5 mi s of Paradise. 304 Comment
  CHSC46392  Leptosiphon bicolor Lowell Ahart 1989-5-10 6214 Butte Along a dirt road, near a small stream, about 1/10 mile north-west of the West Branch Bridge across Lake Oroville, near Lake Oroville. 289 Comment
  HSC32655  Leptosiphon bicolor Steven Lagos 1974-4-20 10 Butte Skyway Rd. Comment
  CDA13325  Leptosiphon filipes G. F. Hrusa, T. D. Wilfred 1996-7-9 13171 Butte Sierra Nevada; Approx. 1 m. on 22N89 and 22N12x. Immed. S of Rogers Cow Camp on Hwy 162. Comment
  UCD118761  Leptosiphon harknessii E. B. Copeland 1931-7-1 681 Butte Jonesville, along Butte Creek. 1500 Comment
  CHSC39777  Leptosiphon parviflorus William Askea 1981-4-24 20 Butte Ca. 3 km s of Big Chico Creek and 5.4 km e of Highway 99, 5 km e of Chico. 230 Comment
  CHSC82718  Leptosiphon parviflorus Tara Morgan 2002-5-7 12 Butte Yankee Hill area around Yankee Hill Rd. located off of Highway 70 east of Lake Oroville. Within the area of the 2001 fire. 546 Comment
  JEPS124203  Leptosiphon parviflorus Lowell Ahart 2015-4-13 20041 Butte About 9 1/2 miles north of Oroville. Comment
  CHSC23593  Lessingia nana L. Thomas 1972-9-26 501 Butte Upper Bidwell Park, Chico; ca. 1/2 m e of Omicron study plot. Comment
  CAS-BOT-BC341795  Lessingia nemaclada R. F. Hoover 1965-10-16 9720 Butte Deer Creek Road east of Chico Comment
  CHSC63698  Lessingia nemaclada Lowell Ahart 1994-10-8 7550 Butte Along North Rim Trail, near the double power lines, Bidwell Park, about 1 mile east of Chico. 152 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-BC56388  Leucothoe davisiae Lowell Ahart 1986-8-15 5388 Butte about 1 mile south-west of Bald Mountain, about 4 miles north-east of Stirling City 1493 Comment
  CHSC33335  Leucothoe davisiae R. Banchero; R. Schlising 1980-6-26 275 Butte 1.1 mi s of Inskip. 4.5 mi n of Stirling City. 1426 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
  CHSC51868  Leucothoe davisiae L. P. Janeway 1988-7-2 2939 Butte Marsh/mdw at upper reach of Brush Cr, ca 1.5 mi S of 'town' of Brush Creek. 952 Comment
  CHSC44110  Lewisia kelloggii subsp. hutchisonii L. P. Janeway; R. A. Schlising 1988-7-22 3047 Butte Area of saddle between Coon Hollow and Chips Cr. Near jeep trail. 1920 Comment
  JEPS93942  Ligusticum californicum Vernon H. Oswald and Lowell Ahart 1998-8-11 9472 Butte Four Trees-Coyote Gap Road 1 mi w of Four Trees; Four Trees-Coyote Gap Road 1578 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
  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
  CAS-BOT-BC509474  Lilium kelleyanum E. B. Copeland 1930-7-18 614 Butte Jonesville 1500 Comment
  CAS-BOT-BC509478  Lilium kelleyanum H. F. Copeland 1920-8-29 152 Butte Jonesville Woods 1219 Comment
  SEINET10469576  Lilium pardalinum Mary Susan Taylor 1978-7-19 Taylor 1735 Butte Cherry Hill Campground, on S side of Old Humboldt Road, ca. 2 mi SW of Jonesville. 1524 Comment
  CAS-BOT-BC133049  Lilium washingtonianum subsp. washingtonianum Albert M. Vollmer; Ira L. Wiggins 1940-7-6 10 Butte About 1/2 mile west of Chaparral 1554 Comment
  UC1303182  Limnanthes alba A. A. Heller 1926-4-12 13917 Butte 8 mi n Chico Comment
  RSA256669  Limnanthes douglasii David Johnson 1974-4-20 15 Butte One mile east of Hwy. 99 along Skyway Rd. 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
  JEPS117706  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
  UC726864  Limnanthes douglasii subsp. rosea A. A. Heller 1938-3-27 15005 Butte along US Hwy 99E near Cana road junction (n of Chico) Comment
  CHSC29026  Limnanthes floccosa subsp. californica J. D. Jokerst; M. S. Taylor 1980-3-20 481 Butte 0.3 mi E of Elmonte Ave, between Hwy 32 and Humboldt Rd. Comment
  CHSC67543  Limnanthes floccosa subsp. californica James D. Jokerst 1988-3-16 3048 Butte Type Locality: W and adjacent to Hwy 99, S and adjacent to Gold Run Creek. Comment
  POM253301  Limnanthes floccosa subsp. floccosa A. A. Heller 1938-3-27 s.n. Butte Near the Chico Airport. 91 Comment
  JEPS107699  Limnophila X ludoviciana Lowell Ahart 2005-9-13 12368 Butte 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 Road Comment
  CHSC113244  Limosella acaulis Lowell Ahart 2014-4-26 19413 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
  SEINET10548868  Limosella acaulis Lowell Ahart 1985-4-20 Ahart 4876 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
  CHSC47039  Linanthus dichotomus R. A. Schlising; J. D. Jokerst 1985-4-8 4462 Butte N of Hwy 70 crossing of Lake Oroville and SW of village of Yankee Hill. Comment
  JEPS48319  Linanthus filipes Paul C. Hutchison with J. K. Wright and R. Bacigalupi 1963-6-1 2687 Butte w side Pulga Bridge; North Fork of Feather River 472 Comment
  CHSC48993  Linaria dalmatica subsp. dalmatica Vernon Oswald 1986-5-12 2032 Butte Skyway 1.3 mi wsw of Neal Rd. in Paradise. 405 Comment
  JEPS88435  Lindernia dubia var. anagallidea Vernon H. Oswald and Lowell Ahart 1996-7-22 8083 Butte U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River, in the NW corner of Tract 9.1., Sanctuary I, a unit managed for watergrass (Echinochloa). 30 Comment
  CHSC33338  Linnaea borealis var. longiflora R. Banchero; R. Schlising 1980-6-23 263 Butte 1.6 mi SW of Sly Res., 1.8 mi N of the jct of Laporte Rd and 'Eagle Gulch Rd. 1066 Comment
  CHSC112204  Linum bienne Lowell Ahart 2013-4-20 18553 Butte West side of Wilson Creek, southwest of the dredge pond, west of the barn, about 3 1/4 miles (air) northeast of Honcut. 45 Comment
  SEINET10936269  Linum lewisii Mary Susan Taylor, K. Tharp 1983-3-11 Taylor 5226 Butte T20N R5E se sec 18. Along Foreman Creek Rd leading to Foreman Creek Boat-In Camp on Lake Oroville, off Hwy 162, ne of Oroville. Comment
  SEINET12186044  Linum micranthum Unknown 1983-1 4286 Butte near Humboldt Rd., 3 mi SW of Butte Meadows, Yellow Pine Forest 1450 Comment
  CHSC55620  Lipocarpha L. P. Janeway 1987-6-5 2142 Butte Border area of small pool, near confluence of Ram Creek and French Creek. 609 Comment
  UC128928  Listera convallarioides Miss Kate Conger 1907-1 Butte Brush Creek Comment
  CAS-BOT-BC36173  Lithocarpus densiflorus var. densiflorus Mary E. Wall 1935-11-10 s.n. Butte Magalia Comment
  CHSC4193  Lithophragma Ann Dolder 1967-4-8 Butte Ca. 300 yards e of road on Table Mt., Oroville. 335 Comment
  SEINET10871263  Lithophragma Mary Susan Taylor 1981-5-13 Taylor 3695 Butte 4500 ft. T23N R6E se sec 32, Pulga SE quad. In decomposed granite on E side of 23N15.5, ca. 1 mi S of its jct with Four Trees Rd, ca. 8 air mi E of Pulga and 0.5 mi W of Oroville-Quincy Hwy. 1372 Comment
  SEINET12219412  Lithophragma affine Unknown 4 s.n. Butte no further locality Comment
  CHSC1651  Lithophragma bolanderi E. Canfield 1904-4-9 Butte Wood adjoining Hooker Oak field. 76 Comment
  CHSC52133  Lithophragma bolanderi Tyler Williams 1984-4-5 11 Butte On steep road bank, ca. 5 yd s of Pacific Heights Rd., 1.0 mi sw of its junction with Ophir Rd. 45 Comment
  UCD102715  Lithophragma bolanderi Michael A. Vincent; Ethan H. Freid 1998-4-6 8135 Butte Table Mountain. Comment
  JEPS5851  Lithophragma heterophyllum Robert Kehlor 1951-4-14 32 Butte 6 1/4 mi e Oroville (J. M. Kehlor ranch); e of Oroville Comment
  CHSC160  Lithospermum californicum V. Holt 1935-5-4 Butte Forest Ranch. 609 Comment
  SEINET10497327  Lithospermum californicum Mary Susan Taylor 1981-4-27 Taylor 3556 Butte T21N R5E se sec 24, Brush Creek quad. Ridge between 21N33 and 21N80, ca. 1 mi SW of Bald Rock Rd, ca. 0.5 mi N of Zink Rd, ca. 2 mi SW of Brush Creek. Yellow Pine Forest; 3300 ft. 1006 Comment
  JEPS102332  Lobularia maritima Lowell Ahart 2001-4-15 8722 Butte 4 air miles SW of Gridley (N side of the dirt road E of the large pump, S side of Evans-Reimer Road, 1 mi E of Pennington Road, Gray Lodge Waterfowl Management Area) 22 Comment
  CAS-BOT-BC342140  Logfia filaginoides A. A. Heller; H. E. Brown 1902-5-9 5515 Butte Berry Canyon (near Clear Creek) Comment
  CAS-BOT-BC342141  Logfia filaginoides A. A. Heller; H. E. Brown 1902-5-9 5515 Butte Berry Canyon (near Clear Creek) Comment
  CHSC86855  Logfia filaginoides L. P. Janeway; John Hunt, Adam Henderson 2003-5-13 7784 Butte Northern High Sierra Nevada. East side of Middle Fork Feather River arm of Lake Oroville, 1.0 km southwest of mouth of Frey Creek. 299 Comment
  CAS-BOT-BC283388  Lolium multiflorum Lowell Ahart 1981-5-24 2834 Butte Peter Ahart Ranch, ca 2 miles N and 2 miles E of Honcut 50 Comment
  CHSC107387  Lolium multiflorum Blake McSorley 2010-5-11 Butte Bidwell Park at Christer Ave. Found along Big Chico Creek. 71 Comment
  CHSC57166  Lolium multiflorum R. L. Ondricek-Fallscheer 1982-5-26 137 Butte In yard of house on plateau at southwest end of Flatiron Ridge, ca 3 1/2 mi west-southwest of Paradise. 192 Comment
  CHSC31716  Lolium perenne L. Ahart 1972-5-8 104 Butte Peter Ahart Ranch, Honcut. 45 Comment
  RSA755351  Lolium perenne subsp. multiflorum L. P. Janeway 2008-3-18 9235 Butte Cascade Range Foothills. East edge of City of Chico, south side of Humboldt Road 1.3 km northeast of Bruce Road. 123 Comment
  UCR187080  Lomatium Anna M. Hurlbutt, Carl R. Weeks 2007-4-26 013 Butte Sierra Nevada Mtns., Paradise, < 0.25 mi N of Skyway, c. 5 mi E of Oroville Reservoir, bluffs above Hamlin Canyon, formed by Butte Cr. and Little Butte Cr. 488 Comment
  CHSC60646  Lomatium dissectum var. multifidum Vernon H. Oswald 1993-4-12 5257 Butte S wall of Flag Canyon on the NW edge of North Table Mtn., N of Oroville. P 341 Comment
  SEINET10454503  Lomatium marginatum Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4098 Butte T21N R5E sec 30. Along Bloomer Hill Rd, ca. 3 mi nw of Oroville-Quincy Hwy, ca. 16 mi ne of Oroville. Yellow Pine Forest; 700 m. 700 Comment
  CHSC42624  Lomatium marginatum var. marginatum Vernon Oswald 1985-4-3 1695 Butte Concow Rd. n of Lake Concow. 792 Comment
  CDA38449  Lomatium utriculatum T. C. Fuller 1960-4-15 5007 Butte Highway 99E, ca. 10 miles northwest of Chico. 0 Comment
  SEINET12121859  Lomatium utriculatum Unknown 1985-1 4976 Butte W of Lunt Road, about 0.5 mi N of intersection of Lunt Rd & Hwy 70, N of Yankee Hill, N of Oroville 503 Comment
  CHSC11859  Lonicera conjugialis E. B. Copeland 1930-6-27 478 Butte Jonesville 1550 Comment
  RSA4160  Lonicera conjugialis E. B. Copeland 1930-6-27 478 Butte Jonesville. 1550 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
  CHSC83000  Lonicera hispidula Lowell Ahart 2002-9-8 9932 Butte On the west side of the paved road, about 1/4 mile south of the first parking spaces at the Feather Falls Trailhead, about 1 3/4 miles north by road from the town of Feather Falls. 854 Comment
  SEINET8056664  Lonicera hispidula M. J. Williams 1984-5-25 84- 34 -1 Butte Feather River Canyon, Hwy 70, 1.5 mile W of Poe Power Dam. 457 Comment
  CAS-BOT-BC240686  Lonicera interrupta A. A. Heller; H. E. Brown 1902-5-14 5551 Butte Berry Canyon (Near Clear Creek) Comment
  CHSC46357  Lonicera interrupta Lowell Ahart 1989-5-29 6306 Butte Along Robinson Mill Road, about 11/2 miles south of Forbestown Road. 670 Comment
  SEINET7085240  Lonicera interrupta Steven R. Hill 2010-7-17 38551 Butte Junction of Forbestown Road and upper end of Black Bart Road. Elevation 2800 - 3000 feet [2442 feet]. Sierra Nevada. Coordinate Datum: WGS84/NAD83. 744 Comment
  UCD80204  Lonicera interrupta CNPS SN Foothill Team 2005-5-5 SNFN 0158 b Butte City of Chico, Upper Bidwell Park, Upper Bidwell Park Road, approximately 3/4 mile from the north end of the road. 233 Comment
  UC864769  Lotus argophyllus var. fremontii Lewis S. Rose 1940-5-30 40424 Butte 25 mi ne Oroville; Feather River Canyon 609 Comment
  POM27895  Lotus humistratus C. C. Bruce 1897-05 2037 Butte [No location data on label] Comment
  JEPS115192  Lotus purshianus var. purshianus Lowell Ahart 2009-6-19 15930 Butte On dry soil, 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 379 Comment
  UC865565  Lupinus A. A. Heller 1915-5-4 11866 Butte two mi e Durham Comment
  UC398928  Lupinus angustiflorus E. B. Copeland 1929-7-17 378 Butte above Jonesville; above Jonesville 2000 Comment
  CHSC36098  Lupinus apertus R. A. Schlising; K. Tarp, D. Burk 1982-6-16 4298 Butte E part of county, 0.7 mi S of Plumas County line on Oroville-Quincy Hwy. 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
  RSA0036483  Lupinus bicolor Daisie Huang 2006-4-15 06041565 Butte Upper Bidwell Park, Horseshoe Lake. 114 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
  SEINET10937081  Lupinus densiflorus var. lacteus Emmrich 1975-5-2 EMMRICH 33 Butte Pentz rd. Ca. 1/4 Mi. W of intersection with hwy 70. Common along roadsides, Open areas of foothill woodland. Assoc: lupinus. Comment
  SEINET10452081  Lupinus formosus Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4076 Butte T20N R5E sec 6. Along Bloomer Hill Rd, ca. 3/4 mi w of Oroville-Quincy Hwy, ca. 15 mi ne of Oroville. Foothill Woodland; 425 m. 425 Comment
  POM23941  Lupinus grayi C. C. Bruce 1898-05 2456 Butte Doe mill Comment
  SEINET10452694  Lupinus latifolius subsp. longipes Mary Susan Taylor 1982-6-24 Taylor 4738 Butte T23N R5E center sec 30. Pulga SW quad. E side of Flea Mt ridge, ca. 1 mi se of Flea Mt, 1.7 mi se of Ponderosa Way, 8.9 mi n of Jarbo Gap on Hwy 70. Comment
  CHSC90294  Lupinus latifolius var. columbianus L. P. Janeway 1994-7-19 4698 Butte Northern High Sierra Nevada. South side of Cascade Creek 0.4 mi east of confluence with South Branch Middle Fork Feather River. 1179 Comment
  CHSC96218  Lupinus latifolius var. columbianus R. Fischer 2006-5-5 980 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east -side addition along Hwy. 32. Plants growing on wooded hillside, black oak overstory, ca. 0.25 miles east of Big Chico Creek on the north side of 10 Mile House Road. 304 Comment
  UCR237304  Lupinus nanus George K. Helmkamp, E. A. Helmkamp 2012-4-14 18757 Butte Northwestern Sacramento Valley, Cox Lane, 1.3 miles west of its intersection with La Loma Way, c. 10.3 mi. ENE (82 deg. ) of Gridley 91 Comment
  RSA638251  Lupinus nanus subsp. nanus Michael A. Vincent, Ethan H. Freid, Karl Vincent 1998-4-6 8117 Butte Table Mountain. Comment
  SEINET10484054  Lupinus nanus subsp. nanus Mary Susan Taylor 1981-4-14 Taylor 3528 Butte Valley Grassland, NW corner of the jct of Wheelock Rd and Hwy 70, ca. 5 mi N of Oroville. 137 Comment
  CHSC43386  Lupinus nanus var. vallicola Lowell Ahart 1978-5-2 1711 Butte Near the large parking area on the top of Table Mountain, about 7 miles north of Oroville. 457 Comment
  CHSC941  Lupinus nanus var. vallicola 1933-3-5 Butte Bidwell Park. 60 Comment
  CHSC65780  Lupinus polycarpus Vernon H. Oswald 1996-4-10 7348 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Sacramento Valley. Common among weeds on the N end of the levee road between Tract6 and Tract 7.1, Sanctuary 1. 32 Comment
  SBBG128005  Lupinus polyphyllus var. burkei L. Ahart 2010-9-21 17205 Butte ca. 70 yards E of the poor dirt rd, ca. 80 yards W of Big Kimshew Crk, ca. 1.5 mi NE of Jones Meadow, ca. 2.5 mi SE of Philbrook Reservoir 1917 Comment
  RSA126017  Lupinus stiversii E. K. Balls 1957-5-22 22510 Butte Near Tobins, about 7 mi. ne. Butte-Plumas Co. line. 640 Comment
  HSC23497  Lupinus vallicola L. E. Dunkel 1965-3-2 2 Butte .5 mi. SW of Municipal Golf Course building, Chico 61 Comment
  SEINET10452166  Lupinus vallicola Mary Susan Taylor 1981-5-1 Taylor 3588 Butte T20N R3E center sec 26, Oroville quad. E side of Hwy 70, ca. 4 air mi NW of Oroville. Valley Grassland; 300 ft. 91 Comment
  SEINET10491010  Lupinus vallicola subsp. vallicola Taylor 1981-5-21 Taylor 3762 Butte Paradise se quad. S side of lake concow, ca. 5 Mi e of paradise. Associates: Viola lobata. 640 Comment
  UCD111665  Luzula comosa Christopher Mallek 2008-1 HW2- 19 Butte Magalia. 756 Comment
  CHSC33727  Luzula comosa var. subsessilis M. S. Taylor 1981-3-12 3398 Butte Along s side of 20N53.2, ca. 1 mi sw of Feather Falls community. 883 Comment
  CHSC52031  Lycopus americanus B. Castro 1987-9-22 249 Butte S side of Pentz Rd ca 2.2 mi e of its jcn with Clark Rd. 115 Comment
  RSA725036  Lycopus americanus L. Ahart 2006-9-13 13320 Butte South edge of the North Fork of the Feather River, about 50 yards west of the Cresta Power House, north side of Highway 70, about 2 3/4 miles northeast of Pulga, about 23 miles (air) northeast of Oroville. 437 Comment
  SEINET7073010  Lythrum hyssopifolia A. G. Vestal 1963-5-31 s.n. Butte About 8.2 miles north-northwest of Oroville on Route 149. UTM Zone 10, 614599mE, 4384406mN. Coordinate datum: NAD27. Comment
  CHSC47442  Lythrum salicaria Lowell Ahart 1984-8-19 4782 Butte North of the state borrow area, west of Pacific Heights Road, about 5miles south-west of Oroville. 30 Comment
  SEINET6629282 Image available Lythrum salicaria Lowell Ahart 1984-1 4782 Butte W of Pacific Heights Road, ca. 5 miles SW of Oroville 40 Comment
  CHSC43620  Madia citriodora Vernon Oswald 1985-5-1 1738 Butte Upper Bidwell Park, Chico, on the slope bordering the s side of the Golf Course at the Police Pistol Range. 109 Comment
  UC1609068  Madia elegans Lowell Ahart 1993-6-20 6998 Butte about 1 air mi nw Lost Creek Reservoir Dam; Mooreville Ridge, Jackass Flat 1158 Comment
  CAS-BOT-BC344322  Madia exigua John Thomas Howell 1962-6-16 37609 Butte Feather River West Branch sw. of Nelson Bar 304 Comment
  CAS-BOT-BC344317  Madia exigua Lowell Ahart 1984-6-8 4666 Butte West of the little building at the Ponderosa Dam, about 2 miles north-west of Forbestown 370 Comment
  SEINET10475532  Madia exigua Lowell Ahart, Peter Ahart 1983-6-12 Ahart 4050 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
  CHSC97359  Madia gracilis Paul Maslin 2005-5-18 61 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). UTM: 106105194E 4412501N. 280 Comment
  JEPS104130  Madia gracilis Lowell Ahart 2003-6-30 10323 -A Butte Near the small stream, on the se side of Ponderosa Way, ca 2 1/2 mi (by road) sw of the Ponderosa Dam, ca 2 mi (air) nw of Forbestown. 578 Comment
  CAS-BOT-BC345234  Madia subspicata Lowell Ahart 1982-5-28 3438 Butte Sutter Buttes Area. Near North Honcut Creek, near the Peter Ahart Ranch, about 1.25 miles north and 3 miles east of Honcut 50 Comment
  CAS-BOT-BC345238  Madia subspicata Bruce G. Baldwin; Gerald D. Carr; Lowell Ahart 1988-6-9 713 Butte Peter Ahart Ranch, 1 mile north, 3 miles east of Honcut Comment
  CHSC6014  Magnolia M. MacArthur 1968-6-19 269 Butte NE end of PSA bld., Chico State College. 60 Comment
  HSC94149  Malacothrix floccifera G. Fred Hrusa, T. D. Wilfred 1996-7-9 13185 Butte Approx 1 mi. on 22N89. Immediately S of Rogers Cow Camp on Hwy. 162. 1150 Comment
  CHSC106871  Malva parviflora Lowell Ahart 2011-5-9 17352 Butte South side of Palm Avenue, about 2 miles (air) southeast of East Biggs. 29 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
  SEINET10479979  Malva parviflora Mary Susan Taylor 1982-4-28 Taylor 4374 Butte T17N R1E se/ne sec 22. Pennington quad. Graylodge Waterfowl Refuge, around parking lot 5, ca. l mi s of HQ, ca. 12 mi sw of Gridley. 65 ft. 20 Comment
  CHSC33214  Malvella leprosa R. E. Preston 1981-6-19 96 Butte In and along road, atop levee; ca. 0.8 km s of Headquarters, Grey Lodge State Wildlife Area, ca. 14.5 km ssw of Gridley. 20 Comment
  RSA440947  Marah fabacea K. M. Stocking 1947-4-17 27 Butte 1.2 miles S of 19th St.; Chico on Hwy 99. 59 Comment
  SEINET11991670  Marah fabacea J. M. Thayer 1984-1 1 Butte ca 30 ft from Big Chico Creek, ca 6 ft from South Park Drive, ca 1 mi from jct of Hwy 99 & 32 76 Comment
  CHSC31384  Marah fabacea var. agrestis J. D. Jokerst 1979-4-6 1189 Butte Top of North Table Mt in the vicinity of Coal Cr canyon. 365 Comment
  JEPS115503  Marrubium vulgare Lowell Ahart 2009-6-12 15845 Butte 10 yards north of Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove, Lower Bidwell Park, Chico 67 Comment
  CHSC31531  Marsilea vestita L. Ahart 1971-6-5 77 Butte Peter Ahart Ranch, Honcut. 45 Comment
  SEINET10474307  Matricaria matricarioides Mary Susan Taylor 1981-5-15 Taylor 3743 Butte T22N R5E nw sec 12, Pulga SE quad. Both sides of RD 22N92, between its jct with 23N00.1 and West Branch French Creek, ca. 1.5 mi S of Coyote Gap, ca. 4 air mi E of Pulga on Feather River Hwy 70. 2900 to 3200 ft; Yellow Pine F. 884 Comment
  CHSC65986  Matricaria occidentalis Vernon H. Oswald 1996-5-9 7545 Butte Sacramento River Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. In the S paddock of Tract 7, Sanctuary II. 32 Comment
  SEINET10839148  Matricaria occidentalis Mary Susan Taylor 1982-4-28 Taylor 4359 Butte T17N R1E se/sw sec 13. Pennington qud. Graylodge Wildlife Refuge, n side of Rutherford Rd, ca. 1/2 mi w ofits jct with Pennington Rd, ca. 12 mi sw of Gridley. 70 ft. 21 Comment
  UC1601097  Meconella californica Mrs. Austin 1883-1 47 Butte hills W of Chico Comment
  UC1609456  Medicago lupulina Lowell Ahart 1993-11-1 7274 Butte on s side of Butte City Hwy e Southern Pacific Railroad (w of Riceton Rd, about 3 1/4 mi nw of Biggs); Rice Experiment Station 30 Comment
  UC1506096  Medicago polymorpha Robert T. Clausen 1963-3-21 63011 Butte sewage disposal plant Sacramento Valley, Sacramento River Drainage, Chico (levee) 110 Comment
  CHSC108775  Medicago praecox L. P. Janeway 2011-4-26 10240 Butte Sacramento Valley. Oroville; in gravel parking area at east side of Feather River Ranger District office (875 Mitchell Ave.). 59 Comment
  SEINET10869195  Melica Mary Susan Taylor 1978-5-6 Taylor 1570 Butte Just N of Magalia, in large serpentine area along the Skyway. 610 Comment
  CHSC42520  Melica harfordii Lowell Ahart 1987-5-22 5676 Butte North of Lumpkin Ridge Road, about 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 1280 Comment
  CHSC87952  Melica harfordii Lowell Ahart 2004-6-22 11112 Butte On the east margin of a gravel road, road leads to Butte Creek, south of Doe Mill Road, about 1/8 mile southwest of the bridge across Butte Creek, about 2 miles (air) southeast of Forest Ranch, about 5 miles (air) west of Stirling City. 692 Comment
  JEPS103566  Melica harfordii Lowell Ahart 2002-6-21 9739 Butte On the sides of a poor dirt road, Watson Ridge, ca 2 miles (air) NE of Bald Rock Dome, ca 5 miles (air) N of Feather Falls (the town). 1086 Comment
  CHSC34062  Melica stricta L. Ahart; M. S. Taylor 1981-8-15 3049 Butte At base of cliffs near dirt road from Coon Hollow to Poison Springs, ca. 1 mi se of Snow Mt, ca. 15 mi ne of Inskip. 2000 Comment
  UCD80581  Melica torreyana CNPS SN Foothill Team 2005-5-25 SNFN 0170 a Butte City of Chico, Upper Bidwell Park, upslope on the east side of Big Chico Creek, about 300 m south of the northern boundary of Upper Bidwell Park. 278 Comment
  CHSC24804  Melilotus indicus E. L. Rilla 1976-9-18 28 Butte .5 mi s of Gridley Rd on Pennington Rd in the Gray Lodge Waterfowl Management Area. Bench Marker 72, 1 mi directly w of collection area. 21 Comment
  CHSC80644  Melilotus officinalis Lowell Ahart 2001-6-13 8817 Butte On the sides of the dirt road east of the large pump, on the south side of Evans-Reimer Road, about 1 miles east of Pennington Road, Gray Lodge Waterfowl Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  CHSC102616  Mentha arvensis Lowell Ahart 2009-7-9 16009 Butte Along streams, 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
  CHSC108311  Mentha spicata var. spicata Lowell Ahart 2011-8-17 17624 Butte About 20 yards south of the trail, south of the crossing and on the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 203 Comment
  CHSC28950  Mertensia ciliata var. stomatechoides M. S. Taylor 1978-7-19 1755 Butte On w side of Upper Scotts John Rd, ca. 2 mi n of jct of Upper Scotts John Rd and Scotts John Rd, ca. 4 mi e of Jonesville. 1828 Comment
  CAS-BOT-BC428754  Micranthes californica Lowell Ahart 1988-3-27 5943 Butte Along Poe Power House Road, about 1/10 mile north of the bridge across the North Fork of the Feather River, about 2 miles southeast of Jarbo Gap 350 Comment
  CAS-BOT-BC428758  Micranthes californica Mrs. C. C. Bruce 1898-2-1 2042 Butte Unspecified Comment
  CAS-BOT-BC428765  Micranthes californica Gladys L. Smith 1976-4-8 s.n. Butte Table Mountain. Comment
  CAS-BOT-BC428994  Micranthes fragosa A. A. Heller 1940-3-8 15507 Butte Just above the Spring House on the Neal Road to Paradise Comment
  CHSC4219  Micranthes integrifolia R. Carter 1966-3-13 294 Butte Found ca. 6 mi. E of Chico at intersection of Honey-Run Rd. and Humbug Rd. in Butte Cr. Canyon; on slope ca. 25 yds. up slope on S side canyon. Comment
  CHSC4656  Micranthes integrifolia R. Carter 1966-3-13 294 Butte Found ca. 6 mi. E of Chico at intersection of Honey-Run Rd. and Humbug Rd. in Butte Cr. Canyon; slope ca. 25 yds. up slope on S side canyon. Comment
  JEPS120079  Micranthes integrifolia Lowell Ahart 2012-3-2 17764 Butte On the west side of South Rim Trail, about 1/2 mile southwest of the of homestead, pond, and Ten Mile House Road, about 3/4 mile west of Highway 32, about 8 miles northeast of Chico. Comment
  CAS-BOT-BC429040  Micranthes nidifica Lowell Ahart 1980-2-23 2026 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC429041  Micranthes nidifica Lowell Ahart 1983-2-21 3902 Butte Peter Ahart Ranch, about 2 1/2 miles north and 1/2 mile east of Honcut 35 Comment
  CHSC64220  Micranthes oregana S. C. Morey 1983-8-2 677 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  CHSC101970  Micropus californicus J. Boze 1982-5-8 438 Butte Along edge of Horseshoe Lake in Upper Bidwell Park. Comment
  CHSC45894  Micropus californicus var. californicus Lowell Ahart 1975-5-12 767 Butte Peter Ahart Ranch, about 1 mile north and 2 1/2 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CAS-BOT-BC348705  Microseris acuminata A. A. Heller 1914-4-14 11291 Butte 8 miles north of Oroville 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
  SEINET11807772  Microseris douglasii subsp. tenella Unknown 1985-1 4888 Butte Peter Ahart Ranch, about 2 mi N & 2 mi E of Honcut, aobut 12 mi S of Oroville 50 Comment
  CHSC47660  Microseris sylvatica Lowell Ahart 1981-4-24 2787 Butte Near North Honcut Creek, about 1 mile north and 3 miles east of Honcut, Peter Ahart Ranch, about 12 miles south of Oroville. 45 Comment
  CHSC92560  Microsteris gracilis L. P. Janeway 2005-3-1 8337 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  CHSC20384  Mimetanthe pilosa L. M. Mayer 1975-6-21 400 Butte Growing beside the Sacramento River below Ord Ferry Bridge. Comment
  CHSC75973  Mimetanthe pilosa Lowell Ahart; Vernon Oswald 1999-8-13 8133 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
  HSC66316  Mimulus aurantiacus var. grandiflorus G. L. Cranford 1968-4-23 29 Butte 4 mi. E of Chico, on Covered Bridge Rd. 305 Comment
  POM264771  Mimulus bicolor Lincoln Constance 1941-5-28 2831 Butte South Branch of the Feather River at Magalia, Sierra Nevada foothills. 488 Comment
  SEINET12319564  Mimulus bifidus Unknown 1978-1 17 Butte ca 4 mi SE Concow Reservoir, 13.5 mi NE of Oroville, 0.7 mi S on Dark Canyon Rd, E side of road 549 Comment
  RSA796039  Mimulus bifidus subsp. bifidus L. Ahart 2012-6-2 18128 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. 287 Comment
  SEINET10830523  Mimulus cardinalis Mary Susan Taylor 1975-6-25 Taylor 798 Butte Richardson Springs on Mud Creek, ca. 3 mi NE of Cohasset Hwy, ca. 6 mi N of Chico, ca. 1 mi NE of the Hotel at the Springs. With Gary Jones. 244 Comment
  UC103740  Mimulus glaucescens Mrs. R. M. Austin 1890-1 159 Butte Little Chico Canyon Comment
  SEINET10570233  Mimulus glaucescens Mary Susan Taylor 1981-7-10 Taylor 4061 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
  CDA31944  Mimulus guttatus L. Ahart 2008-5-21 14774 A Butte Below the high water line of Lake Oroville, on the north and 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 Comment
  RSA589914  Mimulus guttatus Michael A. Vincent, Robert M. Rhode, Jim Snowden 1996-3-29 7206 Butte North Table Mountain, W of Cherokee Rd, N of Oroville. N side Beatson Hollow, ca. 1.9 mi. along trail from entrance on Cherokee Rd. Comment
  RSA60037  Mimulus guttatus G. R. Campbell 1950-6-8 15486 Butte 14 miles southeast of Paradise. Comment
  SEINET12326955  Mimulus guttatus L. D. Collins 1978-1 16 Butte 6 mi N of Oroville, 1 mi W of Cherokee Rd 305 Comment
  SEINET8269133  Mimulus guttatus C. E. Wickstrom 1964-3-3 15 Butte north rim of Big Chico Creek Canyon, vic. of Salmon Hole, upper Bidwell Park; Cico. Comment
  RSA256661  Mimulus kelloggii Dave Knorr 1974-4-20 137 Butte On Oroville's Table Mtn, near Cherokee Rd. Comment
  UCD122734  Mimulus kelloggii M. Vincent 1961-3-26 20 Butte Near Feather River bridge, Nelson Bar Road, two miles east of Spence Road. 457 Comment
  UC725754  Mimulus latidens A. A. Heller 1940-5-13 15615 Butte 3 mi w Chico (on State Highway #32) 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
  POM298033  Mimulus moschatus var. longiflorus A. A. Heller 1917-7-26 12829 Butte Butte Meadows. 1280 Comment
  JEPS121901  Mimulus primuloides var. primuloides Lowell Ahart 2014-7-10 19613 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  UCD85076  Mimulus torreyi Dena Grossenbacher; Marisano James 2009-6-7 1033 Butte Along Bean Creek Road 1.1 miles east of junction with Bald Rock Road. Private property. 983 Comment
  UC336556  Mimulus tricolor Edw. L. Greene June 1890 Butte Chico Comment
  UCSB64006  Minuartia californica Ahart, Lowell 1974-3-12 Butte Peter Ahart Ranch; about 1/2 miles north and 2 miles east of Honcut; about 12 miles south of Oroville 45 Comment
  CHSC207  Minuartia cismontana S. Carter 1929-3-25 Butte Richardson Springs road. Comment
  JEPS108841  Minuartia cismontana Lowell Ahart 2006-5-3 12567 Butte On basalt outcrops, about 3/4 mile northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 392 Comment
  CHSC103671  Minuartia douglasii Lowell Ahart 2010-4-30 16605 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
  CHSC33106  Minuartia douglasii M. S. Taylor 1981-5-15 3738 Butte At loop in rd 23N00.1, ca. 0.5 mi s of Coyote Gap on Four Trees Rd, ca. 4 air mi e of Pulga on Hwy 70. 1219 Comment
  CHSC37432  Moehringia macrophylla R. A. Schlising; S. Morey, J. Fuller 1982-5-23 4254 Butte N of Forest Ranch, off Hwy 32 near a serpentine outcrop above West Branch Butte Creek. 868 Comment
  JEPS42874  Mollugo verticillata W. L. Jepson 1939-8-17 19459 Butte near Oroville (Feather River); Feather River 45 Comment
  RSA0106565  Mollugo verticillata Lowell Ahart 2014-9-23 19870 Butte On the northeastern part of Horseshoe Lake, about 100 yards northeast of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. 89 Comment
  CAS-BOT-BC219950  Monardella breweri subsp. lanceolata A. A. Heller 1914-7-24 11628 Butte Near Forest Ranch 731 Comment
  CAS-BOT-BC219951  Monardella breweri subsp. lanceolata Lowell Ahart 1984-5-28 4652 Butte Along Old Highway 40, now Dark Canyon Road, about 2 miles east of Old Yankee Hill, about 16 miles north-east of Oroville 450 Comment
  RSA621750  Monardella douglasii subsp. venosa B. Castro 1996-5-18 659 Butte 5.5 airmiles SE of the town of Paradise, in bottom of unnamed canyon just S of Neal Road, 60 ft N of creek channel directly under transmission lines. 85 Comment
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  SEINET10836958  Monardella lanceolata Lowell Ahart 1984-6-8 Ahart 4662 Butte Along Ponderosa Way, ca. 1/8 mi W of Ponderosa Dam, ca. 2 mi NW of Forbestown; Yellow Pine Forest; 370 m. 370 Comment
  CHSC52039  Monardella odoratissima B. Castro; L. P. Janeway, R. A. Schlising 1988-7-30 282 Butte Abundant near top of ridge se of Snow Mtn at top of sw-facing slope above Coon Hollow. 2072 Comment
  CHSC52230  Monardella odoratissima L. P. Janeway; R. A. Schlising 1988-7-22 3042 Butte Saddle between Coon Hollow and Chips Cr. 1905 Comment
  RSA719715  Monardella odoratissima Michael A. Vincent, K. Levings 2006-7-29 12896 Butte NE of Chico along Rt. 32. Comment
  CAS-BOT-BC215539  Monardella odoratissima subsp. pallida A. A. Heller 1913-6-7 10792 Butte Near Stirling 1036 Comment
  CHSC94003  Monardella odoratissima subsp. pallida R. D. Fischer 2004-6-20 781 Butte Sierra Nevada Mountains, north-east corner of Butte County and ca. 2 miles west of Butte Meadows on Humboldt Road. Roadside. 1417 Comment
  CHSC50676  Monardella sheltonii Lowell Ahart 1990-5-28 6502 Butte Near a deep pond, south of Palm Avenue, about 1/4 mile east of Larkin Road, about 2 1/2 miles north-east of East Gridley. 30 Comment
  CHSC76342  Monardella sheltonii L. P. Janeway 1999-7-17 6504 Butte Steep northwest-facing slope on northwest side of Humboldt Road 2.1 mi northeast of Hwy 32; northwest edge of Carpenter Ridge. 1365 Comment
  POM70490  Monardella sheltonii C. C. Bruce 1897-05 1974 Butte Little Chico. Comment
  SEINET4173692 Image available Monardella sheltonii A. A. Heller 1938-6-14 15151 Butte 23 miles from Oroville east of Jarboe Pass on the Feather River Hwy Comment
  RSA277730  Monochoria vaginalis D. D. Keck, T. C. Fuller 1976-10-4 20166 Butte Rice Experiment Station, 3 miles N of Biggs, Butte County Comment
  POM280231  Montia clara Lyman Benson 1935-3-27 6370 Butte 5 miles NW of Oroville, Sierra Nevada Mt Range, Sacramento river watershed. 152 Comment
  CAS-BOT-BC444887  Montia fontana A. A. Heller 1914-3-18 11209 Butte Eight miles north of Oroville Comment
  CHSC38632  Montia fontana subsp. chondrosperma Vernon Oswald 1983-3-13 164 .5 Butte Upper Bidwell Park, Chico, ca. 400 ft s and 1200 ft e of Parking Area N (Salmon Hole). 170 Comment
  CHSC104007  Morus alba Lowell Ahart; Wes Dempsey, J. Guardino, S. Mason, S. Green 2010-5-28 16743 Butte On the north side of the path, about 30 yards southwest of the Cedar Grove Parking Area in lower Bidwell Park, Chico. 67 Comment
  CHSC20539  Morus alba Pamela Caldwell 1972-3-18 Butte Back parking lot of A. J. H. Bldg. CSUC campus. Comment
  JEPS95821  Muhlenbergia filiformis Lowell Ahart 1999-10-3 8284 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
  RSA4652  Muhlenbergia filiformis E. B. Copeland 1929-7-16 s.n. Butte Jonesville 1550 Comment
  SEINET10508180  Muhlenbergia filiformis Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4732 Butte About 1 1/2 mile south-east of Bald Mountain, 3/4 mile west of Oak Point, about 4 miles north-east of Stirling City. Comment
  CHSC113475  Muhlenbergia minutissima Lowell Ahart 2014-7-10 19639 Butte About 80 yards south of Philbrook Road, about 1 1/4 miles west of Philbrook Reservoir. 1648 Comment
  SD271  Muhlenbergia minutissima E. B. Copeland 1929-7-29 341 Butte Above Jonesville, on gravelly bank of pond, as water retreats during summer 1750 Comment
  SACT001603  Muhlenbergia repens Herbert Copeland 1929-6-9 Butte In dry open places. 1500.0 Comment
  CAS-BOT-BC274932  Muhlenbergia rigens Willis H. Wheeler 1940-10-9 846 Butte Foreign Plant Introduction Station, Chico Comment
  CHSC28540  Muhlenbergia rigens M. S. Taylor; J. D. Jokerst 1979-10-13 2253 Butte On n side of Jordan Hill Rd (Ponderosa Way on some maps) ca. .8 mi n of its jct with Concow Rd, ca. 5 mi e of Paradise. 426 Comment
  SEINET10536209  Myosurus minimus Mary Susan Taylor 1975-4-18 Taylor 483 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
  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
  CDA7128  Myriophyllum aquaticum L. P. Janeway, B. Castro, L. Archambault 2006-1-16 8554 Butte Sacramento Valley; Gray Lodge Wildlife Area; between the main waterfowl viewing parking area and the headquarters area. Comment
  UC1609490  Myriophyllum aquaticum Lowell Ahart 1993-10-31 7271 Butte ca. 4 mi. e. Palermo (on n. side of Grubbs Rd.) 152 Comment
  CAS-BOT-BC259752  Nassella cernua A. A. Heller 1902-5-8 5497 Butte Berry Canyon (near Clear Creek) Comment
  CHSC6749  Nassella pulchra V. Hagaman 1968-4-19 476 Butte Cherokee Village, ca 200 yards E. of cemetary. Comment
  POM282330  Navarretia breweri Lyman Benson 1932-7-28 3974 Butte First summit, Oroville-Quincy. Sierra Nevada Range, Feather River watershed. 1829 Comment
  CHSC36817  Navarretia divaricata D. H. Ikeda 1980-5-26 383 Butte Cohasset Ridge, s of Cohasset. 426 Comment
  UC1609065  Navarretia divaricata subsp. divaricata Lowell Ahart 1993-6-20 6999 Butte about 1 air mi nw Lost Creek Reserovir Dam; Mooreville Ridge, Jackass Flat 1158 Comment
  CHSC30685  Navarretia filicaulis M. S. Taylor; J. D. Jokerst, L. Ahart 1979-6-12 2297 Butte Off dirt rd leading from Magalia serpentine to Feather River, rd connects to Coutelenc Rd and Skyway jct. 670 Comment
  CHSC39514  Navarretia intertexta Lowell Ahart 1983-6-12 4038 Butte In a meadow, about 1 mile south of Crystal Hill, near Oregon Gulch, near Lake Oroville, about 7 miles south-west of Feather Falls. 425 Comment
  CHSC44415  Navarretia intertexta Lowell Ahart 1988-6-23 6077 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
  JEPS127016  Navarretia intertexta Lowell Ahart 2016-5-24 20864 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
  SEINET10496825  Navarretia intertexta Mary Susan Taylor 1978-5-7 Taylor 1590 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
  CHSC94249  Navarretia intertexta subsp. intertexta Lowell Ahart 2006-7-16 13003 Butte On the west side of the poor dirt road, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1524 Comment
  UC600669  Navarretia intertexta subsp. propinqua E. B. Copeland 1931-7-17 Butte Dry Lake Jonesville Comment
  SEINET10902897  Navarretia leucocephala Mary Susan Taylor 1975-4-29 Taylor 539 Butte Abundant in fields ca. 50-500 yds S of Pentz Road, ca. 1/4 mi E of Hwy 99, ca. 15 mi S of Chico. With Layia fremontii, Achyrachaena mollis, Delphinium spp. Comment
  UCSB63717  Navarretia leucocephala Romano, Marci 1986-4-15 Butte junction of Broyles Rd and Hwy 99 11 m N of Chico 68 Comment
  CHSC91113  Navarretia leucocephala subsp. leucocephala Lowell Ahart 2005-5-28 11818 Butte Pasture, on the south side of Nelson Avenue, east of the bridge across the Thermalito Forebay, Thermalito. 67 Comment
  CAS-BOT-BC233624  Navarretia pubescens A. A. Heller; H. E. Brown 1902-5-7 5477 Butte Berry Canyon, near Clear Creek Comment
  CHSC28486  Navarretia tagetina R. A. Schlising 1979-5-30 3425 Butte Richvale Vernal Pools. 1/4 mile S of jct Hwy 162 to Oroville and Hwy 99, along latter and across from Thermalito Afterbay. Comment
  CHSC38605  Navarretia tagetina Vernon Oswald 1983-5-21 510 Butte Upper Bidwell Park, Chico, on the north rim at the level of Horseshoe Lake. 152 Comment
  CHSC88072  Navarretia tagetina R. D. Fischer 2004-6-6 158 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located at the 10 Mile House Road parking area off Hwy 32, on ridge. 464 Comment
  JEPS107893  Navarretia tagetina Lowell Ahart 2005-5-28 11821 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
  SEINET3860241  Navarretia tagetina Leigh A. Johnson 2004-5-15 04 -064 Butte Eastbound from Chico on Skyway Drive, in 10 meters between large pullover area and fence, 4.2 miles west of Skyway crossroad; 5.3 miles west of Neal jct.; 0 209 Comment
  UCD48660  Navarretia tagetina M. Vincent 1963-6-5 381 Butte Pentz road 5 miles south of Paradise. Roadside. Comment
  CHSC40403  Nemacladus capillaris Lowell Ahart 1985-6-17 5059 Butte Near a small seep, 100 yards south of the dirt road, 1 1/2 miles east of Camp 18, about 8 miles northeast of Feather Falls. 975 Comment
  CHSC42132  Nemacladus interior Lowell Ahart 1984-6-8 4669 Butte Along the dirt road to the generator on the north side of the Ponderosa Reservoir, about 2 miles north of Forbestown. 411 Comment
  RSA0006287  Nemacladus montanus E. Brooks s.n. Butte Enterprise. Comment
  CHSC31689  Nemophila heterophylla L. Ahart 1975-3-23 715 Butte Peter Ahart Ranch, Honcut. Near North Honcut Creek. 45 Comment
  CHSC46196  Nemophila heterophylla L. P. Janeway 1988-7-2 2964 Butte Near the road to French Cr, 0.9 mi S of Coyote Gap. 1188 Comment
  JEPS115823  Nemophila heterophylla Lowell Ahart 2009-4-26 15641 Butte On the south of Guardians Trail, about 30 yards southwest 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
  CHSC10763  Nemophila pedunculata Lowell Ahart 1968-3-11 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC39933  Nemophila pedunculata M. S. Taylor; L. Ahart, J. Jokerst 1984-4-6 5400 Butte Ca. 0.5 mi N of Kunkle Reservoir, on E side of Pentz-Magalia Hwy, ca. 3 mi S of Paradise. Comment
  UC426938  Nemophila spatulata E. B. Copeland 1930-6-28 445 Butte Jonesville 1650 Comment
  CDA3526  Nymphaea odorata G. D. Barbe 1975-6-4 2029 Butte North side of Nelson West Road 1/4 mile east of Chico-Butte City Highway. 0 Comment
  CHSC38882  Odontostomum hartwegii Vernon Oswald 1983-4-25 392 Butte Upper Bidwell Park, Chico, on the north slope of Horseshoe Lake. 109 Comment
  SBBG57427  Odontostomum hartwegii A. A. Heller 1926-4-28 13933 Butte 4 mi N of Chico on the Richardson Springs rd Comment
  SDSU5332  Odontostomum hartwegii Scott McMillan 1992-4-11 11 IV92C Butte Found along the edge of a still moist vernal pool. The pool was under a electrical tower north of Upper Park Rd., in Upper Bidwell Park, Chico, California. 78 Comment
  CHSC47037  Oenothera elata subsp. hirsutissima R. A. Schlising 1985-10-6 4480 Butte At Sacramento River, W of Chico, N of Chico Landing site. Along E edge of river. 36 Comment
  CAS-BOT-BC349985  Oreostemma alpigenum var. andersonii A. A. Heller 1914-8-7 11650 Butte Butte Meadows 1219 Comment
  CHSC48642  Orobanche fasciculata Vernon Oswald 1984-6-7 1256 Butte Between Chico and Forest Ranch on an abandoned section of old Hwy 32, 9.9 mi n-e of Hwy 99. 487 Comment
  SEINET10500394  Orobanche fasciculata var. franciscana Mary Susan Taylor 1976-4-27 Taylor 1086 Butte Abundant ca. 50 ft E of Cohasset Hwy, ca. 8 mi N of Chico; in Chaparral, with Cerococarpus betuloides, Adenostoma fasiculatum, Lepechnia calycina. 137 Comment
  CHSC61330  Orthilia secunda Lowell Ahart 1993-7-29 7130 Butte Small bog about 1/8 mile south-west of the Snow Mine, about 2-1/2 miles east of Bald Mountain, about 6-1/2 miles north-east of Stirling City. 1463 Comment
  RSA176419  Orthocarpus campestris A. A. Heller 1927-4-25 14349 Butte Near the 'Y' along the state highway between Oroville and Richvale. This station is not many miles from where Hartweg collected the type. Comment
  RSA715538B  Orthocarpus lacerus L. Ahart 2005-7-13 12146 Butte About 10 yards east of the intersection of Forbestown Road and Black Bart Road, about 3.5 miles (air) southwest of Forbestown, about 12 miles (air) east of Oroville. 759 Comment
  CAS-BOT-BC6993  Orthocarpus lithospermoides var. bicolor Amos Arthur Heller; H. E. Brown 1902-5-10 5519 Butte Berry Canyon (Near Clear Creek) Comment
  POM44320  Orthocarpus purpurascens C. C. Bruce 1887-04 2090 Butte Chico. Comment
  CHSC31393  Oxalis corniculata J. D. Jokerst 1979-4-13 1192 Butte Top of North Table Mt., ca. 200 met N of the intersection of Cherokee Rd and the E edge of the mountain. Adjacent to vernal creek. 396 Comment
  JEPS34386  Packera eurycephala var. lewisrosei Rimo Bacigalupi, and P. C. Hutchison, J. K. Wright 1963-6-1 8862 Butte 0.75 mi s Pulga (above side road off U.S. Hwy 40, in canyon of the N Fk Feather River, at n base of grade over Jarbo Gap, and just before bridge across Feather River); North Fork of Feather River, Jarbo Gap 426 Comment
  CHSC38066  Panicum acuminatum R. E. Preston; R. A. Schlising 1982-6-23 311 Butte Bank on side of road just N of Fall Creek, SW of Rag Dump. 1158 Comment
  SEINET10973377  Parvisedum pumilum Mary Susan Taylor 1975-4-29 Taylor 537 Butte Abundant in fields ca. 50-500 yds S of Pentz Road, ca. 1/4 mi E of Hwy 99, ca. 15 mi S of Chico. With Layia fremontii, Achyrachaena mollis, Delphinium spp. Comment
  CAS-BOT-BC259720  Paspalum distichum John Thomas Howell 1959-9-20 34666 Butte Eastern outskirts of Oroville 60 Comment
  CAS-BOT-BC259721  Paspalum distichum Lowell Ahart 1975-7-5 s.n. Butte Honcut 45 Comment
  SEINET10836216  Paspalum urvillei Lowell Ahart, Peter Ahart 1983-6-12 Ahart 4049 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
  CHSC51865  Paxistima myrsinites L. P. Janeway 1988-6-14 2781 Butte Near Ewalt Camp, mdw along W Br Butte Cr 2.0 mi E from hwy 32 by dirt rd. Near small creeklet. 922 Comment
  CHSC61709  Pectiantia pentandra Lowell Ahart 1993-8-8 7149 A. Butte On bottom of stream, in area mined for gold, about 1/2 mile north-west of Lewis Flat, about 3/4 mile north-west of the Sly Creek Dam. 1097 Comment
  UC426966  Pedicularis attollens E. B. Copeland 1930-7-18 471 Butte Jonesville 1550 Comment
  UCR133597  Pedicularis attollens H. F. Copeland 1930-7-24 1329 Butte Jonesville 1524 Comment
  SEINET10549210  Pedicularis semibarbata Mary Susan Taylor 1978-6-24 Taylor 1647 Butte Summit of Humboldt Road, at Butte and Tehama County line. 2134 Comment
  UC122746  Pellaea andromedifolia Mrs. R. M. Austin April 1883 77 Butte Little Chico Canyon Comment
  CHSC29215  Pellaea mucronata Carl E. Yingst 1980-4-23 18 Butte Ca. 20 km ne of Chico, 1.8 km sw of Highway 32. 454 Comment
  CHSC44732  Penstemon azureus R. Banchero 1980-5-7 143 Butte Along Hwy 70, 2.4 mi S of its jct with the Feather River. 609 Comment
  CHSC114692  Penstemon azureus J. R. Keck Jr. 1978-5-23 Butte Highway 70, Jarboe Gap. Near Poe Power House. Roadside. Comment
  CHSC49023  Penstemon azureus var. azureus Vernon Oswald 1984-5-21 1197 Butte Coutolenc Rd., 4.2 mi s of its jct. with the Skyway at Lovelock. 792 Comment
  CHSC88056  Penstemon azureus var. azureus R. D. Fischer 2004-5-30 182 Butte Northern Sierra Nevada, 4-5 airmiles n. of Paradise, and w. of upper Paradise Pines. Turn w. off Skyway Road on Nimshew Road and take the s. turn on Centerville Road (on older maps Humbug Road), ca. 1 mile s. of this junction. 643 Comment
  CHSC11886  Penstemon gracilentus E. B. Copeland 1930-7-6 457 Butte Above Jonesville. 1950 Comment
  CHSC3360  Penstemon heterophyllus var. purdyi M. Gregg 1966-5-7 162 Butte 3 miles north east of the Skyway on Humbug Rd. Comment
  CHSC63930  Penstemon heterophyllus var. purdyi Larry A. Stauffer 1990-4-22 28 Butte About 310 feet north-west of north end of Horseshoe Lake. Upper Bidwell Park, about 5 miles north-east of Chico, 0.5 mile east-north-east from park entrance. 76 Comment
  SBBG7173  Penstemon laetus H. and M. Dearing 1938-6-20 2049 Butte 20 mi NE of Chico Comment
  CDA41857  Penstemon laetus subsp. leptosepalus L. Ahart 2004-6-22 11122 Butte On the west side of Doe Mill Road, about 1 mile southeast of the bridge across Butte Creek, about 2 1/2 miles (air) southeast of Forest Ranch, about 5 miles (air) southwest of Stirling City. Comment
  SEINET10548027  Penstemon laetus subsp. leptosepalus Mary Susan Taylor 1982-6-24 Taylor 4729 Butte T23N R5E nw/se sec 30. Pulga SW quad. Around large landing site on saddle of ridge se of Flea Mt, n of Pulga, ca. 5 air mi e of Magalia. 3600 ft. 1097 Comment
  CHSC44708  Penstemon laetus var. leptosepalus R. Banchero 1980-6-19 255 Butte Along Concow Rd 1.7 mi N of its jct with Hwy 70, 0.7 mi N of the town of Concow. 524 Comment
  CHSC87976  Penstemon laetus var. leptosepalus Lowell Ahart 2004-6-22 11122 Butte On the west side of Doe Mill Road, about 1 mile southeast of the bridge across Butte Creek, about 2 1/2 miles (air) southeast of Forest Ranch, about 5 miles (air) southwest of Stirling City. 713 Comment
  POM195089  Penstemon neotericus D. D. Keck 1930-7-24 970 Butte 7 miles above Chaparral (near Humbug Summit). 1707 Comment
  UC423641  Penstemon neotericus David D. Keck 1930-7-24 971 Butte near Chaparral; Sierra Nevada, near Chaparral 1645 Comment
  POM193323  Penstemon newberryi subsp. newberryi E. B. Copeland 1930-7-6 458 Butte Above Jonesville. 1900 Comment
  CHSC30368  Pentagramma triangularis J. D. Jokerst 1979-2-23 1132 Butte In the upper reaches of Hollow Cr, Top of North Table Mt., W edge. 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
  CHSC84394  Perideridia bacigalupii Lowell Ahart 2003-8-6 10474 Butte In the road gutter on the west side of Encina Grande Road, about 50 yards southeast of Truman Journey Way, about 2 miles (air) southeast of of Bloomer Hill, about 6 miles (air) northeast of Oroville Dam. Along the road for the next 3 miles. 609 Comment
  CDA14077  Perideridia lemmonii G. F. Hrusa, T. D. Wilfred 1997-7-3 13960 Butte Sierra Nevada; NE side of upper end of Paradise Lake. Where last tributaries from E enter. Comment
  SEINET10454549  Perideridia lemmonii Mary Susan Taylor 1977-8-17 Taylor 1467 Butte In Montane Meadows around Julie<s Creek between Old Humboldt Road and Butte Creek, ca. 3.4 mi E of where Butte Creek crosses Humboldt Road near Butte Meadows. 1341 Comment
  SEINET10454550  Perideridia lemmonii Lowell Ahart 1985-8-11 Ahart 5160 Butte Peter Ahart Ranch about 1 mile north and 3 miles east of Honcut, about 12 miles south of Oroville. Comment
  CAS-BOT-BC413474  Persicaria amphibia Lowell Ahart 1987-8-3 5852 Butte E of the Western Pacific Railroad S of Central House Road, ca. 1.5 mi. N and 1 mi. W of Honcut 30 Comment
  CHSC34192  Persicaria hydropiper L. Ahart 1981-9-19 3177 Butte Along edge of the road just a few feet n of the Arch Rock Tunnel, on Hwy 70, ca. 10 mi s of Storrie. 550 Comment
  CAS-BOT-BC413706  Persicaria hydropiper Lowell Ahart 1982-10-6 3846 Butte Along the edges of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 3 miles east of Honcut 50 Comment
  CAS-BOT-BC418953  Persicaria lapathifolia Lowell Ahart 1974-11-9 s.n. Butte Peter Ahart Ranch, Honcut 45 Comment
  JEPS120602  Persicaria lapathifolia Lowell Ahart 2013-11-17 19262 Butte McCabe Creek, below the high water line of Lake Oroville, about 5/8 mile southwest of the enterprise Bridge across Lake Oroville. Comment
  CAS-BOT-BC419318  Persicaria punctata Lowell Ahart 1987-5-27 5716 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  CDA42927  Persicaria punctata L. Ahart 2012-9-28 18461 Butte Just east of the east end of Sycamore Pool in Big Chico Creek, Lower Bidwell Park, Chico. Comment
  SEINET12326938  Phacelia heterophylla Unknown 1980-1 18 Butte ca .75 mi E of Oroville Quincy Highway, 10 ft S of Lumpkin Rd 402 Comment
  CHSC39114  Phacelia heterophylla subsp. virgata R. A. Schlising 1982-6-23 4299 Butte N of Concow, along Dogwood Creek. 1121 Comment
  CHSC42353  Phacelia heterophylla subsp. virgata Lowell Ahart 1987-5-9 5593 Butte On dry disturbed soil along Pulga Road, about 1/2 mile south-west of Bardees Bar along the North Fork of the Feather River, about 3 miles south-west of Pulga. 365 Comment
  SEINET10496979  Phacelia heterophylla var. pseudohispida Mary Susan Taylor 1978-7-19 Taylor 1784 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
  UC600782  Phacelia mutabilis H. F. Copeland 1927-9-2 956 Butte Jonesville Comment
  RSA718394  Phacelia purpusii L. Ahart 2006-7-16 12962 Butte Near the open mudflow area, on the S side (road edge) of Humboldt Road, about 1.5 miles (air) SW of Butte Meadows. 1436 Comment
  SEINET12765109  Phacelia purpusii Lowell Ahart 2006-7-16 12962 Butte Humboldt Road, about 1 1/2 miles (air) southwest of Butte Meadows.; 0 1436 Comment
  CAS-BOT-BC250703  Phalaris paradoxa Lowell Ahart 1981-5-16 2801 Butte In hole formed from irrig. pump, Gray Lodge Waterfowl Management Area, 11 mi. SW of Gridley 35 Comment
  CHSC27162  Philadelphus grandiflorus M. MacArthur 1968-6-17 306 Butte SE yard of Building U n Chico State College campus. 60 Comment
  CAS-BOT-BC77374  Philadelphus lewisii A. A. Heller 1913-6-6 10784 Butte Ditch along Table Mountain 8 miles north of Oroville 182 Comment
  CHSC10791  Philadelphus lewisii Lowell Ahart 1966-5-22 Butte Near Paradise. 91 Comment
  CHSC46608  Phleum alpinum V. Oswald; L. Ahart 1989-7-12 3853 Butte Meadow near the headwaters of Big Kimshew Creek, ca. 2 mi (air) sw of Lotts Lake, ca. 3 mi (air) se of Philbrook Reservoir. On meadow. 1901 Comment
  RSA700218  Phleum pratense L. Ahart 2004-6-22 11124 Butte on the north side of the Hupp Coutolenc Road, about 1/2 mile north of Paradise lake, about 1/2 mile northeast of De Sabla Reservior, about 4 miles (air) southwest of Stirling City. 822 Comment
  SEINET10507565  Phleum pratense Mary Susan Taylor 1978-7-18 Taylor 1720 Butte On N side of Butte Creek, ca. 1/8 mi W of Road Island Junction, at junction of Butte Creek and Old Humboldt Road, ca. 1 mi W of Cherry Hill Campground; Yellow Pine Forest. 1524 Comment
  CHSC11949  Phlox diffusa E. B. Copeland 1931-6-19 683 Butte On and below crags of 'the Summit. 2100 Comment
  CAS-BOT-BC134918  Phoradendron bolleanum C. R. Quick 1959-8-17 59 -45 Butte Magalia. Sierra Nevada Comment
  CHSC77448  Phoradendron densum Laura Bogni 1997-3-25 3 Butte Magalia grove; west side of Coutelenc Rd; 1 mi. due W of Sawmill Peak; 1/2 mi. SE of Magalia Reservoir. 701 Comment
  CAS-BOT-BC135099  Phoradendron juniperinum E. B. Copeland 1931-7-28 627 Butte Jonesville 1500 Comment
  CAS-BOT-BC141119  Phoradendron serotinum subsp. macrophyllum Lowell Ahart 1983-3-27 991 Butte Peter Ahart Ranch, about 1 1/2 miles N and 1 mile E of Honcut 50 Comment
  CHSC32113  Phoradendron serotinum subsp. macrophyllum L. Ahart 1977-3-19 1227 Butte Along edge of North Honcut Creek, 3 mi ne of Honcut. 60 Comment
  CAS-BOT-BC141247  Phoradendron serotinum subsp. tomentosum Lowell Ahart 1966-3-13 s.n. Butte Near Enterprise 304 Comment
  CDA13875  Phoradendron villosum G. F. Hrusa, T. D. Wilfred 1997-5-7 13733 Butte Sierra Nevada; Above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. Comment
  CHSC101261  Phoradendron villosum Lowell Ahart 2009-4-17 15559 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
  CHSC36095  Phyllodoce breweri R. A. Schlising; K. Tarp, F. J. Fuller 1982-7-18 4328 Butte NE part of county, N of Philbrook Reservoir; SE of Snow Mt. Peak, on flanks of mountain. 2057 Comment
  CHSC51930  Physalis lancifolia L. P. Janeway 1986-9-20 1887 Butte Inside the bend at the jct of Chico-Butte City Hwy and Road 48. 28 Comment
  UCD126004  Physalis lancifolia Beecher Crampton 1957-9-17 4616 Butte 5 miles northwest of Biggs, Biggs Rice Experiment Station. Comment
  CHSC34220  Physocarpus capitatus M. S. Taylor 1981-5-27 3805 Butte Along creek on Phillips property, 685 Wagstaff, Paradise. 579 Comment
  CHSC36431  Physocarpus capitatus Robert A. Schlising; Coleta Lawler 1981-8-8 4192 Butte E of Paradise at Concow Reservoir. Roadside. Comment
  SEINET10537235  Phytolacca americana Mary Susan Taylor 1975-6-22 Taylor 786 Butte California State University, Chico, campus. 61 Comment
  CAS-BOT-BC434419  Phytolacca americana Alice Eastwood 1913-6-18 s.n. Butte Experimental Station, Chico Comment
  CHSC46177  Pilularia americana Lowell Ahart 1984-5-12 4603 Butte Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  NY61631  Pinus lambertiana E. B. Copeland 1929-7-19 332 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
  CHSC107399  Pinus sabiniana Blake McSorley 2010-4-13 Butte Bidwell Park at Green Gate. 469 Comment
  CDA13729  Piperia leptopetala G. F. Hrusa, T. D. Wilfred 1997-6-27 13907 Butte Sierra Nevada; Feather Falls/Cascade Rd. to USFS 21N22Y, 1 km. E to summit. Comment
  CHSC61526  Piperia transversa Lowell Ahart 1993-6-16 6962 Butte South-west of the intersection of Black Bart Road and Forbestown Road, about 3 1/2 miles (air) south-west of Forbestown. 609 Comment
  CAS-BOT-BC254403  Piptatherum miliaceum John Thomas Howell 1961-9-22 36763 Butte N Fork of Feather River, 10 miles from Oroville 121 Comment
  CHSC49562  Piptatherum miliaceum Vernon Oswald 1985-6-12 1829 Butte Bidwell State Park slightly s of the Washout on River Rd. On a bank of the river. 38 Comment
  CHSC108965  Pistacia atlantica Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17862 Butte On the south side of Big Chico Creek, east of the Deer Pen, near Table 12, Lower Bidwell Park, Chico. 65 Comment
  CHSC111405  Pistacia atlantica Lowell Ahart; Susan Bazell, Josephine Guardino, Wes Dempsey 2012-7-5 18266 Butte Cedar Grove, south of parking area, Lower Bidwell Park, Chico. 71 Comment
  SEINET10932922  Pityrogramma triangularis Mary Susan Taylor 1980-4-1 Taylor 2425 Butte T22N R2E sc sec 25. In Foothill Savan nah, on bluffs above and S of Butte Creek, ca. 1/4 mi downstream from Honey Run Covered Bridge ca. 6 mi E of Chico. 183 Comment
  JEPS124178  Plagiobothrys Lowell Ahart 2015-3-10 19944 Butte North of Larkin Road, about 6 miles (air) southwest of Oroville. 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
  CHSC38274  Plagiobothrys austiniae Vernon Oswald 1983-3-13 161 Butte Upper Bidwell Park, Chico, along Yahi Trail 100 ft. w of Parking Area P (2.0 mi e of the power lines). Along the top of a cliff. 195 Comment
  UC78126  Plagiobothrys austiniae Mrs. R. M. Austin may 1883 Butte Comment
  SBBG128020  Plagiobothrys fulvus L. Ahart 2010-5-16 16684 Butte ca. 1/4 mi S of the parking area, N Table Mtn, ca. 4.5 mi NE of Oroville 371 Comment
  CHSC28996  Plagiobothrys fulvus var. campestris J. D. Jokerst 1980-3-12 473 Butte NE of Chico. 67 Comment
  SEINET10497369  Plagiobothrys fulvus var. campestris Mary Susan Taylor 1980-4-16 Taylor 2495 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
  CHSC29039  Plagiobothrys glyptocarpus J. D. Jokerst 1979-4-20 543 Butte In the bottoms of vernal pools below the high water mark. Top of North Table Mt, N of Cherokee Rd. 403 Comment
  UCD18741  Plagiobothrys glyptocarpus Vernal Pool Team 2001; Carol Witham and Jennifer Buck 2001-4-10 34 Butte one mi. east of Rock River Mine and parking area, off Cherokee Rd., North Table Mountain, Oroville site. Comment
  CHSC49829  Plagiobothrys leptocladus Vernon Oswald 1990-4-4 4145 Butte Vinton Gulch access to the West Branch of Lake Oroville, ca. 0.5 mi (air) north of Cherokee. 268 Comment
  RSA754790  Plagiobothrys nothofulvus L. Ahart 2009-4-26 15645 Butte Sides of Guardians Trail, about 200 yards SW of Pine Trail, Upper Bidwell Park, about 1/2 air miles SW of the intersection of Highway 32 and Ten Mile House Road, about 10 miles NE of Chico. 382 Comment
  CHSC118549  Plagiobothrys scriptus Lowell Ahart 2017-2-27 21383 Butte Along a poor road, open pasture field, Peter Ahart Ranch, about 2 miles north and 1 1/4 miles east of Honcut, about 12 miles southeast of Oroville. 33 Comment
  CHSC103692  Plagiobothrys shastensis Lowell Ahart 2010-5-7 16619 Butte On rock outcrop, on the north side of a trail, west of disk golf area, on a ridge about 350 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 353 Comment
  UC179610  Plagiobothrys stipitatus A. A. Heller 1914-5-30 11470 Butte 6 mi from Chico (Chico-Hamilton road) Comment
  CHSC117424  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2016-5-31 20904 Butte About 1/8 mile east of Palermo Honcut Highway, Peter Ahart Ranch, about 2 1/4 miles north and 1/8 mile east of Honcut, about 12 miles (air) south of Oroville. 29 Comment
  UCD80157  Plagiobothrys stipitatus var. micranthus CNPS SN Foothill Team 2005-4-13 SNFN 0080 b Butte Private Rock Ranch (horse ranch) owned by Chris and Maria Rock, near the SE corner of the south pasture, approximately 25 m from the south fence. 92 Comment
  CHSC103747  Plagiobothrys stipitatus var. stipitatus Lowell Ahart 2010-5-22 16709 Butte About 100 yards east of the fence, about 200 yards east of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 385 Comment
  CHSC101311  Plagiobothrys tenellus Lowell Ahart 2009-4-22 15571 Butte West side of Guardians Trail, about 100 yards north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  CHSC31263  Plagiobothrys tenellus R. A. Schlising 1980-3-24 3525 Butte NE of Chico at Covered Bridge over Butte Creek, at junction of Humbug and Honey Run Roads. Comment
  RSA32734  Plagiobothrys tenellus A. A. Heller 1938-4-14 15037 Butte Between Pentz and Cherokee. Comment
  CHSC42071  Plantago coronopus Jumilah Zakaria 1986-4-15 20 Butte S Hwy 99, ca. 2 mi from jct with Cana Creek Road. 182 Comment
  CHSC24970  Plantago erecta T. F. Burnham 1976-4-20 Butte 50 ft s of Cana Pine Creek Road, at the intersection of Hwy 99 and Cana Pine Creek Road. 97 Comment
  CHSC38582  Plantago erecta Vernon Oswald 1983-2-23 97 Butte Upper Bidwell Park, Chico, near Yahi Trail ca 700 ft e of the Diversion Dam Parking Area. 134 Comment
  HSC32591  Plantago erecta Linda M. Barker 1974-4-20 161 Butte Table Mtn., Central Valley 305 Comment
  JEPS119595  Plantago erecta Lowell Ahart 2012-4-9 17851 Butte On the north side of South Rim Trail, west of the power lines, Upper Bidwell Park, about one mile (air) northeast of Chico. Comment
  CHSC66165  Plantago lanceolata Vernon Oswald; Lowell Ahart 1996-5-27 7666 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service Parcel between 7 Mile Lane and the Sacramento River. Scattered plants in the formerly irrigated pasture in the S paddock of Tract 7, Sanctuary II. 32 Comment
  CHSC50438  Platanthera sparsiflora Vernon Oswald; Lowell Ahart 1990-6-20 4303 Butte Headwaters of Philbrook Creek, ca. 0.25 mi west of the Butte-Plumas county line, between Philbrook Reservoir and Carr Mine. 1889 Comment
  CHSC50063  Plectritis ciliosa Lowell Ahart 1990-4-8 6447 Butte On the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  JEPS119841  Plectritis ciliosa Lowell Ahart 2012-3-23 17781 Butte On the sides of the trail down to Big Chico Creek, about 50 yards west of Ten Mile House Road, about 3/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  SEINET10464977  Plectritis ciliosa Lowell Ahart 1984-4-3 Ahart 4538 Butte T17N R4E sec 1. Along North Honcut Creek, ca. 1 mile N and 2.7 miles E of Honcut; on Peter Ahart Ranch. Foothill Woodland; 50 m. 50 Comment
  CAS-BOT-BC244398  Poa annua Lowell Ahart 1979-5-12 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  CHSC39610  Poa annua Lowell Ahart 1983-3-28 3908 Butte About 1/2 mile south-west of the Forbestown Res., along the road where there is a serpentine slide area, about 4 miles north-east of Forbestown. 450 Comment
  CHSC47626  Poa annua Lowell Ahart 1977-4-2 1236 Butte In a pasture field, Peter Ahart Ranch, about 1 1/2 miles north and 1 1/4 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC60705  Poa annua Vernon H. Oswald 1993-4-3 5248 Butte 1007 Lori Dr., in northwest Chico. In garden. 53 Comment
  CAS-BOT-BC255683  Poa bolanderi A. A. Heller 1917-7-29 12868 Butte Summit above Jonesville 2133 Comment
  CHSC94258  Poa bolanderi Lowell Ahart 2006-7-16 12972 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
  JEPS110196  Poa bolanderi Lowell Ahart 2006-7-16 12972 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
  OBI22115  Poa bolanderi H. F. Copeland 1932-8-19 s.n. Butte Vicinity of Jonesville, Lassen Natl Forest 1700 Comment
  UCD90548  Poa bolanderi A. A. Heller 1917-7-29 12868 Butte Summit above Jonesville. 2133 Comment
  CHSC46441  Poa compressa Lowell Ahart 1989-5-28 6286 Butte In a meadow, in a mined over area south of Oregon Gulch Road, about 1/2 mile north of the Cementary, about 1 1/4 miles west of Rocky Point, about 10 miles east and 3 miles north of Oroville. 335 Comment
  CAS-BOT-BC255786  Poa infirma A. A. Heller 1914-3-28 11243 Butte Chico in the Sacramento Valley Comment
  SEINET10659386  Poa scabrella Lowell Ahart 1990-4-28 Ahart 6471 Butte South side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville.Growing on dry soil on steep banks. Foothill Woodland. 40 Comment
  SEINET10822308  Poa scabrella James D. Jokerst, Robert A. Schlising; Lowell Ahart 1982-5-8 Jokerst 1561 Butte Locally abundant on open steep serpentine slope adjacent on road to Forbestown Resv. just S of the North Fork of the Feather River, T20N, R7E nw1/4 se1/4 sec. 32. Comment
  CAS-BOT-BC236372  Poa secunda subsp. secunda Lowell Ahart 1980-3-15 2043 Butte Near intersection of Pentz Road and 99E 50 Comment
  JEPS110239  Poa secunda subsp. secunda Lowell Ahart 2006-5-10 12615 Butte Road cut bank, on the north side of the poor dirt road, Bardees Bar Road, about 100 yards north of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 1/2 miles (air) southwest of Pulga 354 Comment
  HSC41104  Poa tenerrima J. P. Smith, J. O. Sawyer 1973-4-14 6055 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  JEPS117708  Poa tenerrima Lowell Ahart 2010-5-14 16662 Butte Disc Golf Area, about 200 yards west of the entrance to the Disc Golf Area, west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 350 Comment
  CHSC12731  Pogogyne douglasii R. Howlett 1974-4-25 1 Butte On Bruce rd. Ca. 1 mi off of Stillson Canyon Rd. 70 Comment
  CHSC52215  Pogogyne zizyphoroides Linda Osborn 1980-4-22 18 Butte Ca 6 mi n jct of Esplanade on Hwy 99, 250 yds w. Comment
  SD111908  Pogogyne zizyphoroides B. Ertter, Jeff Strachan 1980-5-5 3249 Butte Peter Ahart Ranch, ca. 1.5 miles northeast of Honcut between Oroville and Marysville. 29 Comment
  CHSC27706  Polemonium pulcherrimum Robert A. Schlising; Marc P. Hayes 1978-6-24 3290 Butte Probably just within Butte County line on summit of Humboldt Peak. 2133 Comment
  CHSC49836  Polycarpon tetraphyllum Vernon H. Oswald 1990-4-2 4142 Butte Bedrock Park on the e side of the Feather River in Oroville. Margin of a slough. 42 Comment
  CHSC44418  Polygala 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
  CHSC88089  Polygala cornuta var. cornuta R. D. Fischer 2004-4-17 174 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located in riparian zone of Big Chico Creek w. of 10 Mile House Road where rd. and creek are closest. 198 Comment
  RSA76964  Polygala cornuta var. cornuta F. W. Peirson 1926-6-21 6764 Butte About 10 miles east of Chico on Humboldt Road. Comment
  JEPS88567  Polygonum amphibium var. emersum Vernon H. Oswald and Lowell Ahart 1996-5-27 7672 Butte U.S. Fish and Wildlife parcel between 7 Mile Lane and Sacramento River (in a ditch between 7 Mile Lane and Tract 6, Sanctuary 2, just n of the equipment parking lot); Sacramento River National Wildlife Refuge, Llano Seco Unit 32 Comment
  RSA697050  Polygonum amphibium var. emersum L. Ahart 2003-6-16 10287 Butte W side of Wickman Road, 1 mile S of Richvale West Road, 1.5 miles air SW of Richvale. 29 Comment
  CAS-BOT-BC414194  Polygonum aviculare subsp. depressum Lowell Ahart 1989-9-21 6393 Butte South of French Creek, about 1 mile west of the Sly Creek Reservoir 1158 Comment
  NY323753  Polygonum bidwelliae A. E. Bidwell 05 1878 s.n. Butte Comment
  SBBG61484  Polygonum bidwelliae A. A. Heller 1927-5-18 14391 Butte Neale grade on rd from Chico to Paradise Comment
  RSA261661  Polygonum bistortoides A. Kellogg 1870-6-21 s.n. Butte Chico Comment
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Jun 10 2012
  CHSC32757  Polygonum bolanderi J. D. Jokerst 1981-4-3 1282 Butte Butte Cr. Canyon, ca 1/2 mi E of Centerville at the top of the Penstock of PG and E power plant. 365 Comment
  SEINET10479627  Polygonum bolanderi Lowell Ahart 1983-8-16 Ahart 4280 Butte Near Humboldt Rd, ca. 3 mi sw of Butte Meadows. Yellow Pine Forest; 1450 m. 1450 Comment
  UCD100175  Polygonum californicum Lowell Ahart 1981-11-6 3216 Butte Peter Ahart Ranch, Honcut. 50 Comment
  NY323770  Polygonum greenei A. E. Bidwell 07 1878 s.n. Butte 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
  UC600495  Polygonum minimum H. F. Copeland 1928-7-18 1005 Butte near Butte Creek; Jonesville 1524 Comment
  CHSC33762  Polygonum parryi R. A. Schlising; R. Banchero 1980-6-17 3727 Butte N of Magalia and De Sabla, along Skyway, ca 1.5 mi SW of jct with Coutelenc Road at Lovelock. 780 Comment
  UC1609433  Polygonum parryi Lowell Ahart 1993-6-20 6985 Butte about 1 air mi nw Lost Creek Reservoir Dam; Mooreville Ridge, Jackass Flat 1158 Comment
  JEPS108976  Polygonum persicaria Lowell Ahart 2006-9-11 13290 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
  POM312540  Polygonum persicaria H. L. Mason, Verne Grant 1946-9-4 13111 Butte 833 Canal, W Gridley Road. 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
  CAS-BOT-BC419894  Polygonum polygaloides subsp. kelloggii A. A. Heller 1914-6-22 11490 Butte Sierra Nevada at Chico Meadows 1219 Comment
  CAS-BOT-BC71865  Polypodium californicum Lowell Ahart 1983-4-1 3917 Butte along old Highway 40, near the end of the road where it runs into Lake Oroville, about 4 miles south of Jarbo Gap 350 Comment
  SEINET10530409  Polypodium californicum Mary Susan Taylor 1980-5-27 Taylor 2651 Butte T21N R6E sc sec 30. Big Bend quad. On trail (around parking lot) to Big Bald Rock, ca. 3 mi E of Lake Madrone; Yellow Pine Forest, granitic soils. 998 Comment
  CHSC11324  Polypodium calirhiza Lowell Ahart 1965-3-1 13 Butte Peter Ahart Ranch, Honcut. 42 Comment
  CHSC23410  Polypodium calirhiza M. S. Taylor 1976-3-6 1014 Butte Along Macabes Creek, ca. 100 yds e of Lumpkin Rd, ca. 1 mi ne of Forbestown Rd, ca. 12 mi e of Oroville. 1066 Comment
  CHSC3273  Polypodium calirhiza M. L. Hillier 1966-3-7 Butte 100 to 300 yds. S. of covered bridge over Butte Creek about 9 miles from C. S. C. on Humbug rd. Comment
  HSC103916  Polypodium calirhiza L. Ahart 2012-2-22 17740 Butte About 9 mi. (air) NE of Chico; east edge of Big Chico Creek, ~100 yds. S of trail crossing creek, ~100 yds W of Ten Mile House Road; ~.75 mi. W of Hwy. 32 190 Comment
  JEPS104148  Polypodium calirhiza Lowell Ahart 2003-4-10 10077 Butte Face of basalt cliff, on the e rim of South Table Mountain, ca 2 1/2 mi (air) n of Oroville. 334 Comment
  JEPS115061  Polypodium calirhiza Lowell Ahart 2007-11-3 14549 Butte West of the high water line of Lake Oroville, about 1/2 mile east of the Power House below Kunckle Reservoir, about one mile north of the Lime Saddle Campground, about 5 miles (air) southeast of Paradise 322 Comment
  SEINET10530416  Polypodium glycyrrhiza Mary Susan Taylor, L. Hanson 1981-4-2 Taylor 3469 Butte T20N R7E ne sec 32; Clipper Mills quad. South side of Forbestown Reservoir, in serpentine cliff, south side of Rd 20N29, ca. 3 air mi north of Woodleaf. l800 ft. 549 Comment
  JEPS114970  Polypogon australis Lowell Ahart 2008-5-21 14778 Butte Dry bare granite soil, below the high water line of Lake Oroville, on the north 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
  RSA755345  Polypogon australis L. Ahart 2009-7-9 16012 Butte East side of Ten Mile House Road, Upper Bidwell Park, about 3/4 air miles west of Highway 32, about 10 miles northeast of Chico. 210 Comment
  CHSC38850  Polypogon interruptus Vernon Oswald 1983-6-17 700 Butte Upper Bidwell Park, Chico, on the s side of Chico Creek ca. 200 ft w of Day Camp. On ledge near creek. 91 Comment
  CHSC39972  Polypogon interruptus L. Ahart; P. Ahart 1983-6-26 4110 Butte Ca. 1/8 mi e of jct of Oroville-Quincy Hwy and Ponderosa Way (Big Ridge Rd), ca. 15 mi ne of Oroville. Along the road. 500 Comment
  CHSC45744  Polypogon interruptus S. A. Conley 1986-6-16 41 Butte On n. bank of Western Canal, at jct. with the Midway, 0.8 mi. s of Nelson. 35 Comment
  CHSC47631  Polypogon interruptus Lowell Ahart 1977-6-3 1400 Butte At the water hole, Peter Ahart Ranch, about 1 1/2 miles north and 1 1/2 miles east of Honcut, about 12 miles south of Oroville. 42 Comment
  CHSC117397  Polypogon maritimus Lowell Ahart 2016-5-30 20886 Butte On the bottom of a deep wash (where we removed gravel), Peter Ahart Ranch, about 1 1/2 miles north and 1 1/8 miles east of Honcut, about 12 miles (air) southeast of Oroville. 31 Comment
  CHSC82408  Polypogon monspeliensis Lowell Ahart 2002-5-7 9635 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
  CHSC30720  Polystichum imbricans M. S. Taylor 1980-5-27 2668 Butte On Big Bald Rock, ca. 3 mi e of Lake Madrone. 997 Comment
  CHSC116273  Polystichum imbricans subsp. curtum Lowell Ahart 2015-10-23 20577 Butte On the west side of Slate Creek Resevoir, about 100 yards northwest of the intake building, about 2 1/4 miles (air) northeast of La Porte Road, about 6 miles (air) southwest of La Porte. 1128 Comment
  CAS-BOT-BC72267  Polystichum imbricans subsp. curtum M. S. Taylor 1980-3-19 2388 A Butte Macabes Creek Canyon, ca. 100 ft e of Lumpkin Rd, ca. 2.5 mi n of its jct with Forbestown Rd, ca. 18 mi n of Oroville 396 Comment
  CHSC61291  Polystichum imbricans subsp. imbricans Lowell Ahart 1993-8-8 7151 Butte On the east side of Pinkard Creek, about 1 1/2 miles north-west of Lewis Flat, about 1 3/4 miles north-west of the Sly Creek Dam. 1097 Comment
  CHSC86424  Polystichum imbricans subsp. imbricans R. D. Fischer; Paul Maslin 2004-2-7 54 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). Plants located about half mile south of main entrance. UTM: 10 609952E 4408993N. 380 Comment
  CHSC92384  Polystichum imbricans subsp. imbricans Lowell Ahart 2005-11-12 12488 Butte On the west side of Dark Canyon Creek, about 150 yards south of the train tunnels, west of Dark Canyon Road, about 2 1/2 miles (air) south of Highway 70 at Big Bend Road. 293 Comment
  JEPS104593  Polystichum imbricans subsp. imbricans Lowell Ahart 2003-7-30 10459 Butte Along a small stream, on the n side of Little Bald Rock, on the south side of Bean Creek road, ca 2 mi (air) se of Brush Creek. 1000 Comment
  JEPS124285  Polystichum imbricans subsp. imbricans Lowell Ahart 2015-10-24 20584 Butte About 3 miles (air) north of De Sabla Reservoir. Comment
  JEPS99056  Polystichum imbricans subsp. imbricans Lowell Ahart 2002-6-21 9735 Butte 2 miles (air) NE of Bald Rock Dome; Watson Ridge; On a mountainside, Watson Ridge, about 2 miles (air) NE of Bald Rock Dome, about 5 miles (air) north of Feather Falls (the town). 1086 Comment
  CAS-BOT-BC76710  Polystichum lemmonii V. Oswald; L. Ahart 1988-7-29 3655 Butte Ca. 5 mi. (air) SE of Jonesville on the ridge running eastwards from the peak of Snow Mtn. 2097 Comment
  CHSC37655  Polystichum munitum T. B. Devine 1981-8-25 758 Butte Beside Hwy 70 near Bear Ranch Creek, along N Fork of Feather River near Cresta. 426 Comment
  CHSC4146  Polystichum munitum R. Carter 1966-6-26 463 Butte Found ca. 15 mi. NE of Oroville at old Berry Creek RR station on N Fork Feather R., 500 yds. Up E side Berry Cr. 457 Comment
  CHSC77445  Populus fremontii subsp. fremontii Tim Stofer 1997-4-29 30 Butte Located 50 ft from the enterance of the South Rim Trail off South Park Dr. in upper Bidwell Park. 76 Comment
  CHSC46824  Porterella carnosula R. A. Schlising; R. Banchero 1980-7-14 3907 Butte N part of county, 1.1 mi N of Snag Lake on the Skyway. Tiny, overgrown lake N of road. 1807 Comment
  SEINET10460841  Porterella carnosula Edwin B. Copel 1929-7-29 Copeland s.n. Butte Above Jonesville, on border of drying pond 1750 Comment
  UC1562436  Potamogeton foliosus Lowell Ahart 1990-7-1 6533 Butte on e side of Forbestown Reservoir (on e side of the road, at the Forbestown Generator) 487 Comment
  CHSC112658  Potamogeton nodosus Lowell Ahart 2013-10-16 19114 Butte Thermalito Afterbay, about 20 feet north of the base of the large rock levee, about 100 yards north of Larkin Road, about 4 miles (air) north of East Biggs. 49 Comment
  CHSC88252  Potamogeton nodosus Lowell Ahart 2004-7-11 11227 Butte On the northeast shore of Paradise Lake, about 1/4 mile southeast of Mosquito Creek, about 4 miles (air) southwest of Stirling City. 814 Comment
  POM218973  Potamogeton pusillus E. B. Copeland 1931-7-20 604 Butte Jonesville, Butte County. 1650 Comment
  CHSC11798  Potamogeton pusillus var. tenuissimus E. B. Copeland 1931-7-20 604 Butte Jonesville. 1650 Comment
  CHSC23634  Potentilla millefolia M. S. Taylor 1976-4-4 1047 Butte Meadow, ca. 500 m s of Old Humboldt Rd, ca. 1/2 mi e of Butte Creek, Butte Meadows. 1706 Comment
  CHSC46458  Potentilla millefolia V. Oswald; L. Ahart 1989-6-27 3826 Butte Humbug Rd at Butte Creek House, ca. 3.3 mi (air) se of Jonesville. Meadow along Butte Creek. 1767 Comment
  CHSC101760  Poterium sanguisorba 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
  CHSC29397  Poterium sanguisorba R. A. Schlising; R. Banchero 1980-6-17 3738 Butte N of Magalia, along Coutelenc Road, 0.7 mi S of jct with Skyway at Lovelock. In meadow. 902 Comment
  SEINET12331912  Poterium sanguisorba Unknown 1985-1 4958 Butte E branch of Potter Ravine, ca 2.25 mi N of Oroville Dam 350 Comment
  CHSC52060  Prunella vulgaris var. lanceolata B. Castro; L. P. Janeway, R. A. Schlising 1988-7-11 270 A Butte On edge of Big Kimshew Ck in Crane Valley. 1569 Comment
  CHSC52218  Prunella vulgaris var. lanceolata L. P. Janeway 1987-6-5 2137 Butte Along French Cr Rd 5.0 mi from OroQuincy Hwy and Stanwood Saddle. 701 Comment
  CHSC52222  Prunella vulgaris var. lanceolata L. P. Janeway 1988-6-19 2831 Butte 2.6 mi N of Stirling City towards Inskip. Along logging road 0.1 mi W of the Skyway. 1173 Comment
  CHSC776  Prunella vulgaris var. lanceolata R. M. Staley 1952-7-1 Butte Honey Run. 182 Comment
  CHSC48494  Prunella vulgaris var. vulgaris Vernon Oswald 1984-6-5 1255 Butte Upper Bidwell Park, Chico, at Five Mile Recreation Area. 85 Comment
  CHSC48865  Prunus avium Vernon Oswald 1987-3-30 2303 Butte Dredger tailings on the w side of Hwy 99 ca. 0.5 mi nw of Butte Creek Bridge. On the edge of a pond. 65 Comment
  CHSC110108  Prunus cerasifera L. P. Janeway 2012-2-28 10786 Butte Northern Sierra Nevada Foothills. Oroville; east side of the Feather River about 150 m southeast of the Thermalito Diversion Dam. 69 Comment
  CHSC110110  Prunus cerasifera L. P. Janeway 2012-5-2 10815 Butte Sacramento Valley. City of Chico; Lower Bidwell Park, north side Big Chico Creek between creek and Vallombrosa Ave near Crister Ave. 62 Comment
  SEINET10937252  Prunus emarginata Mary Susan Taylor 1976-4-4 Taylor 1063 Butte Yellow Pine Forest, ca. 2-5 mi W of junction of Ponderosa Way and Hwy 32, ca. 2-10 ft N and S of Ponderosa Way, ca. 23 mi NE of Chico; with Sanicula bipinnata, Calochortus monophyllus. 488 Comment
  UC2026867  Prunus ilicifolia subsp. ilicifolia Lowell Ahart, Susan Bazell, Josephine Guardino, Wes Dempsey 2012-6-21 18202 Butte About 50 yards south of the dam at Sycamore Pool, Lower Bidwell Park, Chico. Comment
  CHSC48868  Prunus mahaleb Vernon Oswald 1987-3-30 2301 Butte Butte Creek Reserve between Butte Creek and the Durham Mutual Ditch ne of Hwy 99. 68 Comment
  CHSC28977  Pseudobahia heermannii R. A. Schlising 1980-3-17 3515 Butte E of Chico and SW of Paradise, along Skyway; on cliff edges above Butte Creek. 213 Comment
  CHSC30422  Pseudobahia heermannii J. D. Jokerst; L. Ahart, M. Taylor 1980-4-7 553 Butte NE corner of the jct of Swedes Flat Rd and Rocky Honcut Cr, (10 mi SE of Oroville). Comment
  CAS-BOT-BC356954  Pseudognaphalium canescens John Thomas Howell 1976-7-14 51811 Butte Feather River Canyon Highway, just east of Jarbo Gap 640 Comment
  JEPS88522  Pseudognaphalium stramineum Lowell Ahart 1996-6-25 7685 Butte about 1 1/4 mi n and 1/2 mi e Honcut (about 12 mi s of Oroville); Peter Ahart Ranch 36 Comment
  CAS-BOT-BC357587  Pseudognaphalium stramineum A. A. Heller 1918-9-3 13087 Butte 8 miles north of Oroville Comment
  UCD135260  Psilocarphus brevissimus L. Ahart 1977-4-15 1302 Butte Peter Ahart Ranch. 50 Comment
  CHSC90580  Psilocarphus brevissimus var. brevissimus J. D. Prouty 1980-4-28 80 .94 Butte Roadside along Cherokee Road about 1.5 mi south of junction with Hwy 70, 0.5 mi north of Cherokee. 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
  CHSC30732  Pteridium aquilinum var. pubescens M. S. Taylor 1980-5-27 2649 Butte Big Bald Rock, ca. 3 mi e of Lake Madrone. 975 Comment
  CDA13287  Pterospora andromedea G. F. Hrusa, T. D. Wilfred 1996-7-9 13135 Butte Plumas National Forest; E of Jordan Creek near headwaters, S of Hwy 162 near Roger's Cow Camp. Comment
  SEINET10479894  Pterostegia drymarioides R. M. Austin Austin 16 Butte Rocks. Butte Canyon. Comment
  CHSC115352  Pyracantha koidzumii Lowell Ahart 2015-1-27 19929 Butte On the northwest side of Larkin Road, about 200 yards south of Larkin Road Boat Launch Area, about 1 mile southwest of the Oroville Airport, about 6 miles (air) southwest of Oroville. 35 Comment
  CHSC40266  Pyrola aphylla Lowell Ahart 1985-6-17 5052 Butte Along the dirt road on Fields Ridge, about 4 miles south-east of Feather Falls. 792 Comment
  CHSC44422  Pyrola aphylla Lowell Ahart 1988-6-15 6043 Butte North-west of the intersection of Black Bart Road and Forbestown Road, about 1 mile west of Robinson Mill Road. 670 Comment
  CHSC94101  Pyrola dentata Lowell Ahart 2006-7-11 12943 Butte About 100 yards south of Humboldt Road, about 1 3/8 miles (air) southwest of Butte Meadows. 1400 Comment
  CHSC4669  Pyrola picta Renee Carter 1966-6-15 441 Butte 1.5 mi. S of Brush Creek along E side of Bald Rock Rd., ca. 5 yds off road. 1097 Comment
  CAS-BOT-BC466010  Pyrola picta E. B. Copeland 1930-7-29 435 Butte Jonesville 1600 Comment
  CAS-BOT-BC466011  Pyrola picta E. B. Copeland 1930-7-29 435 Butte Jonesville 1600 Comment
  CHSC109102  Quercus X morehus Lowell Ahart 2012-3-23 17799 Butte On the south side of the Old Humboldt Road cut, north end of the Disc Golf Area, about 50 yards west of Highway 32, about 5 miles (air) northeast of Chico. 395 Comment
  UCR231084  Quercus chrysolepis Anna M. Hurlbutt 2009-8-12 016 Butte Northern Sierra Nevada Mtns., Paradise, yard of residence at end of Kerr Lane 526 Comment
  CHSC23663  Quercus douglasii M. S. Taylor 1976-4-26 1079 Butte Ca. 500 ft s of Bidwell Park Rd, ca. 1 mi w of Chico Municipal Golf Course, Upper Bidwell Park, Chico. Comment
  JEPS120044  Quercus ilex Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino, Wes Dempsey 2012-6-7 18175 Butte On the south side of the paved park road, south of Table 35, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  RSA28825  Quercus lobata A. A. Heller 1915-4-1 11791 Butte Low flat land in the Sacramento Valley near Durham. 69 Comment
  CDA19813  Quercus wislizeni var. wislizeni P. Akers 2002-5-5 s.n. Butte Northern California; Road to Table Mtn from Oroville. 293 Comment
  UC600479  Ranunculus alismifolius var. alismellus H. F. Copeland 1929-6-10 Butte Jonesville; swamp 1524 Comment
  CHSC50337  Ranunculus alismifolius var. hartwegii Vernon Oswald; Lowell Ahart 1990-5-29 4268 Butte Butte Creek House Meadow on the east side of Humbug Rd, ca. 3.5 miles (air) east-southeast of Jonesville. 1777 Comment
  CAS-BOT-BC379223  Ranunculus aquatilis var. aquatilis Lowell Ahart 1970-4-4 s.n. Butte Honcut, Peter Ahart Ranch 150 Comment
  CAS-BOT-BC379114  Ranunculus aquatilis var. diffusus E. B. Copeland 1929-7-28 360 Butte Jonesville 1500 Comment
  CHSC28756  Ranunculus arvensis J. D. Jokerst 1979-5-6 218 Butte Ca. 300 met n. of the intersection of Rock Cr. Rd. and Cohasset Hwy. 106 Comment
  CHSC78162  Ranunculus bonariensis var. trisepalus Lowell Ahart 2000-6-6 8460 Butte In a deep depression, on the bottom of an old gold mining pit, just southeast of where the dirt road crosses Oregon Gulch creek, about 1/4 mile northeast of the cemetery, about 1 1/2 mile south of Crystal Hill, about 5 miles (air) east of Oroville Dam. 304 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
  RSA739981  Ranunculus canus Carol W. Witham, Jennifer Buck 2001-4-10 2001 -38 Butte One mile eaast of Rock River Mine and parking area, off Cherokee Rd., North Table Mountain, Oroville site. Comment
  JEPS116083  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
  UC1561857  Ranunculus muricatus Barbara Ertter with Lowell Ahart 1986-4-13 5888 Butte ca 2 air mi nne Honcut (between Oroville and Marysville); Peter Ahart Ranch 30 Comment
  POM269273  Ranunculus muricatus Lyman Benson 1935-3-27 6361 Butte 5 miles NW of Oroville, Sierra Nevada Mt Range, Sacramento river watershed. 152 Comment
  SEINET10536142  Ranunculus muricatus Mary Susan Taylor 1980-4-1 Taylor 2416 Butte T22N R2E sw border sec 30. Valley Grassland, ungrazed vernal drainages, between Notre Dam Blvd. and Hwy 99, and the Skyway and Humboldt Road, just E of Chico; area soon to be developed. 70 Comment
  SD1769  Ranunculus occidentalis E. B. Copeland 1930-6-26 642 Butte Jonesville, in meadows 1550 Comment
  UCSB63943  Ranunculus occidentalis Copeland, John 1980-2-4 Butte T23N, R2E, Sec. 36, ne1/4 of ne1/4 of ne1/4 ca. 400 yards s of Honey Run Covered Bridge and old Honey Run Rd., ca. 5 miles ne of Skyway Rd. and Humbug Rd. intersection. Comment
  CHSC46850  Ranunculus occidentalis var. occidentalis Kirsten Tarp 1983-4-3 259 Butte S part of county, sw of Bangor, on Bangor Park Rd., roadside. 103 Comment
  SEINET11526628  Raphanus sativus Harris, Heinze 1963-4-16 s.n. Butte Chico. 61 Comment
  CAS-BOT-BC59888  Rhamnus ilicifolia P. Monnet 1913-3-1 683 Butte Feather River Canyon. Oroville. Comment
  UC1121842  Rhamnus ilicifolia J. E. Sowder 1933-11-27 132 Butte near Hog Spring; Chico Quad. 243 Comment
  RSA518945  Rhamnus tomentella subsp. tomentella J. T. Howell 1975-6-15 51073 Butte Butte Creek near Chico 6 Comment
  UC175334  Rhamnus tomentella subsp. tomentella A. A. Heller 1912-5-23 10753 Butte n of Oroville (Table Mountain Olive Ranch) Comment
  CDA14158  Rhododendron occidentale G. F. Hrusa 1997-6-27 13914 Butte Sierra Nevada; Banks of Fall River (not Shasta Co. Fall R.) at old Fall River Campground on USFS 24N94. Comment
  CHSC79727  Rhododendron occidentale G. F. Hrusa; T. D. Wilfred 1997-5-8 13745 Butte Northern California, Sierra Nevada. Above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. [Lat./Long. on label is '39 51 N; 121 34 W']. 740 Comment
  CAS-BOT-BC168128  Rhus aromatica A. A. Heller 1915-3-19 11773 Butte Along Rock Creek 12 miles northeast of Chico Comment
  CHSC103705  Rhus aromatica Lowell Ahart 2010-5-14 16674 Butte On the south side of the Guardian Trail, about 1/4 mile west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 301 Comment
  SEINET10973030  Rhus trilobata var. malacophylla Mary Susan Taylor 1980-4-19 Taylor 2542 Butte S side of Butte Creek, on dry bluffs above the creek in Foothill Woodland, ca. 1/4 mi upstream from Honey Run Covered Bridge, ca.. 6 mi E of Chico. With J.D. Jokerst. 183 Comment
  CHSC78320  Rhynchospora capitellata Lowell Ahart 2000-7-11 8572 Butte Seeps, on the north side of Lumpkin Ridge Road, upper west branch of Know-nothing Creek, about 1 mile southwest of the intersection of Lumpkin Ridge Road, road to Fall River, and the County Road, about 4 miles (air) northeast of Feather Falls. 1219 Comment
  UCSB63912  Ribes nevadense Ahart, Lowell 1997-8-1 Butte on the west side of Little Kimshew Creek; about 1/4 mile east of Table Mountain; about 8 miles (air) northeast of Stirling City 1432 Comment
  CHSC11904  Ribes roezlii E. B. Copeland 1931-5-9 648 Butte Jonesville. 1500 Comment
  CHSC62113  Ribes roezlii B. Castro 1987-5-21 118 Butte Ca 9 mi E of Chico via Hwy 32 and ca 2 mi E on Alatina Drive. At edge of dense thicket in bed of ephemeral stream between two S-trending ridges. 463 Comment
  SD2135  Ribes roezlii E. B. Copeland 1931-5-9 Butte Jonesville 1500 Comment
  UC1127571  Ribes roezlii J. E. Sowder 1933-7-5 105 Butte 2 mi se Promontory Point; Chico Quadrangle Comment
  CAS-BOT-BC198960  Ribes roezlii var. roezlii Jim Riley 1923-3-23 s.n. Butte Forest above De Sabla Comment
  CAS-BOT-BC198961  Ribes roezlii var. roezlii A. A. Heller 1939-4-26 15384 Butte Edge of thickets near the river at the foot of the grade leading down from Stirling City Comment
  CHSC109130  Ribes roezlii var. roezlii Lowell Ahart 2012-2-22 17754 Butte On the north side of Ten Mile House Road, about 100 yards northeast of Guardian Trail, about 1/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. 400 Comment
  UC177588 Image available Ribes viscosissimum H. M. Hall 1914-7-27 9788 Butte Big Summit of Humboldt Road Sierra Nevada Mountains 2042 Comment
  SEINET10971250  Rigiopappus leptocladus Mary Susan Taylor 1981-5-21 Taylor 3770 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
  CHSC3020  Robinia pseudoacacia Carl Pejsa 1958-4-19 102 Butte Bidwell Park Forestry Station. Comment
  CAS-BOT-BC74458  Rorippa curvisiliqua Lowell Ahart 1980-8-16 2582 Butte Near Honcut. 60 Comment
  RSA431531  Rorippa curvisiliqua H. F. Copeland 1929-6-10 1203 Butte Jonesville. 1524 Comment
  UC397035  Rorippa curvisiliqua Copeland 1929-7-29 Butte near Butte Creek House; near Butte Creek House 1750 Comment
  CAS-BOT-BC74465  Rorippa curvisiliqua Lowell Ahart 1990-4-15 6451 Butte Lake Oroville, east of the Enterprise Boat Launch Area, 1/8 mile northwest of Enterprise Bridge. 289 Comment
  CHSC43654  Rorippa curvisiliqua var. occidentalis Vernon Oswald 1984-5-13 1186 Butte Calif. Hwy 32 at the second bridge w of Hord-Hamilton-Cana Hwy. In the bed of a slough. 39 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
  CHSC112733  Rorippa curvisiliqua var. orientalis Lowell Ahart 2013-11-17 19260 Butte Along the sides of McCabe Creek, below the high water line of Lake Oroville, about 5/8 mile southwest of the Enterprise Bridge across Lake Oroville. 245 Comment
  JEPS122221  Rorippa palustris var. occidentalis Lowell Ahart 2014-4-25 19396 Butte On the west side of Richvale South Highway, south of the intersection of Richvale West Road and Richvale South Highway, Richvale. Comment
  UC176212  Rosa bridgesii A. A. Heller 1913-6-7 10809 Butte near Stirling 1074 Comment
  UC481514  Rosa bridgesii H. F. Copeland 1931-6-10 Butte rock crest between Willow Creek and Colby Creek; Jonesville Comment
  JEPS99064  Rosa eglanteria Lowell Ahart 2002-6-9 9715 Butte About 300 yards west of Dunstone Drive, about 200 yards east of North Honcut Creek, about 3 miles (air) NE of Honcut, about 12 miles (air) SE of Oroville. 60 Comment
  CAS-BOT-BC148125  Rosa gymnocarpa Helen M. Edwards 1917-6-1 s.n. Butte DeSabla Comment
  CHSC1595  Rosa gymnocarpa E. Silbersack 1931-4-21 Butte De Sabla. 762 Comment
  CDA42872  Rosa multiflora L. Ahart 2012-5-14 18060 Butte North side of Big Chico Creek, just east of the bridge across Big Chico Creek, Manzanita Avenue, Middle Bidwell Park, Chico. Comment
  JEPS116658  Rosa multiflora L. P. Janeway, B. Castro 2010-4-30 9970 Butte Lower Bidwell Park, Chico Chico (along southeast side of Big Chico Creek about 160 m northeast of intersection of E, 8th Street and El Monte Avenue); Sacramento Valley 75 Comment
  JEPS119754  Rosa multiflora Lowell Ahart 2012-5-14 18060 Butte North side of Big Chico Creek, just east of the bridge across Big Chico Creek, Manzanita Avenue, Middle Bidwell Park, Chico. 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
  UCD92292  Rostraria cristata A. A. Heller 1914-5-19 11417 Butte Butte County. Comment
  SEINET10597110  Rostraria cristata A. Arthur Heller 1902-5-13 Heller 5534 Butte Grade between Clear Creek and Paradise. Comment
  CHSC89501  Rotala indica G. Douglas Barbe 1978-8-14 2437 Butte Check-levees, Biggs Rice Experiment Station. [Lat./Long. on label is '39 degrees 44' N; 121 degrees 40' W']. Comment
  CHSC78521  Rotala ramosior Lowell Ahart 2000-8-28 8667 Butte Northwest edge of a large man made lake, Oroville Wildlife Area, about 1/2 mile west of Oak Grove and Highway 70, about 6 miles (air) southwest of Oroville. 42 Comment
  UCD166765  Rubus armeniacus Marcel Rejmanek 2016-10-6 2161 a Butte By Highway 99, ca 200 m south from the intersection with the West Hamilton Rd. Comment
  CHSC86141  Rubus glaucifolius John Dittes; Josephine Guardino 2002-6-21 620 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
  SEINET10483574  Rubus laciniatus Mary Susan Taylor 1980-2-17 Taylor 2362 Butte T20N R6E ne sec 5. Along a dirt road in Yellow Pine Forest, ca. 1/4 mi SW of Lower Forbestown Road, ca. 3 mi W of Forbestown. 396 Comment
  CAS-BOT-BC148369  Rubus leucodermis John Thomas Howell 1962-6-15 37454 Butte Magalia - Sierra Nevada 731 Comment
  CAS-BOT-BC147199  Rubus parviflorus Clarence R. Quick 1952-7-1 52 -124 Butte Mill Creek Road between Feather River Canyon and Coyote Gap Comment
  CHSC23700  Rubus parviflorus M. S. Taylor 1976-5-5 1112 Butte Along creek, ca. 5 ft s of Hwy 70, ca. 20 me ne of Oroville. Comment
  CHSC46054  Rubus parviflorus L. P. Janeway 1987-5-28 2110 Butte Creek bed crossing side rd (23N12Y) 0.3 mi from Four Trees Rd and 1.6 mi W of OroQuincy Hwy. 1478 Comment
  JEPS119753  Rubus ursinus Lowell Ahart 2012-5-14 18058 Butte 100 feet east of Table 13, south of Big Chico Creek, north side of the paved road, Lower Bidwell Park, Chico. Comment
  OBI69165  Rubus ursinus Kari Fisher, Bill Fisher 2000-11-11 56 Butte Bidwell Park, along path by 5 mi Rec area. 82 Comment
  CAS-BOT-BC421908  Rumex acetosella Lowell Ahart 1987-6-9 5742 Butte On the west side of the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  CHSC116294  Rumex conglomeratus Lowell Ahart 2015-10-16 20554 Butte On west side of Feather River, about half way of and east of ne Mile Pond, about 6 miles (air) east of Biggs. 26 Comment
  CHSC20716  Rumex crispus M. S. Taylor 1975-8-31 876 Butte On Ernies Island in Butte Creek, ca. 50 ft s of Humboldt Rd, ca. 1/2 mi e of Butte Meadows. 1341 Comment
  CAS-BOT-BC421620  Rumex crispus Lowell Ahart 1981-5-16 2810 Butte Gray Lodge, 11 miles southwest of Gridley. Duck ponds on Gray Lodge Waterfowl Management Area. 35 Comment
  CAS-BOT-BC421621  Rumex crispus Lowell Ahart 1982-5-29 3451 Butte Near the Peter Ahart Ranch, about 2 1/2 miles north and 1 1/4 miles east of Honcut 50 Comment
  CHSC39342  Rumex pulcher Lowell Ahart 1983-6-26 4145 Butte Around a small meadow along Ponderosa Way, about 1/2 mile south of the East Fork of Canyon Creek, about 13 1/2 miles north-east of Oroville. Note: the sign gives Big Ridge Road instead of Ponderosa Way. 550 Comment
  SEINET10479441  Rumex pulcher Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4145 Butte T20N R5E nw sec 15. Around a small meadow along Ponderosa Way (Big Ridge Rd), ca. 1/2 mi s of East Fork Canyon Creek, ca. 13.5 mi ne of Oroville. Foothill Woodland. 550 Comment
  CHSC43714  Rumex salicifolius var. denticulatus Vernon Oswald 1987-6-8 2960 Butte Butte Creek Reserve on the nw side of the creek, ne of Hwy 99. 67 Comment
  UC935746  Sagittaria latifolia Herbert L. Mason and Verne Grant 1946-8-14 13020 Butte Butte Sink; canal near big pond on Sacramento Outing Club Comment
  CAS-BOT-BC103450  Salix eastwoodiae H. F. Copeland 1931-6-11 1544 Butte Jonesville, Kirby Meadows 1828 Comment
  CAS-BOT-BC103451  Salix eastwoodiae E. B. Copeland 1931-6-11 617 Butte Jonesville, Kirby's Meadow 1750 Comment
  UC600414  Salix eastwoodiae H. F. Copeland 1931-6-11 1544 Butte Kirby Meadows Jonesville 1828 Comment
  JEPS119537  Salix gooddingii Lowell Ahart 2012-4-20 17893 Butte About 100 yards south of the intersection of South Rim Trail and and Ten Mile House Road, about 5/8 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  JEPS122277  Salix gooddingii Lowell Ahart 2014-4-9 19347 Butte West end of Liberty Road, about one mile (air) south of Colusa Highway, about 7 miles (air) southwest of Gridley. Comment
  JEPS115629  Salix laevigata Lowell Ahart 2009-5-15 15687 Butte On the east side of Big Chico Creek, about 50 yards west Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west Highway 32, about 10 miles northeast of Chico 203 Comment
  UC176160  Salix lasiolepis A. A. Heller 1913-4-5 Butte above Oroville (hills on n side of Feather River) Comment
  CAS-BOT-BC129582  Salix lasiolepis var. lasiolepis A. A. Heller 1919-4-12 13014 Butte Cherokee mine in the blue oak digger pine belt. Comment
  CAS-BOT-BC124576  Salix lemmonii E. B. Copeland 1931-8-1 620 Butte Jonesville, about the Lily Pond 1700 Comment
  UC478538  Salix lemmonii E. B. Copeland 1931-6-11 313 Butte Kirby's Meadow Jonesville 1750 Comment
  CHSC65012  Salix melanopsis Vernon Oswald 1987-7-6 3094 Butte Butte Creek Reserve on the s side of Butte Creek, ca. 0.25 mi e of the Hwy 99 bridge. 67 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
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Jul 5 2010
  CHSC31560  Sambucus mexicana L. Ahart 1974-5-14 452 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC77423  Sambucus mexicana Tim Stofer 1997-4-20 19 Butte This plant was located on the east side of the trail 1/4 mi. from the head of the South Rim Trail off South Park Dr. in upper Bidwell Park. 76 Comment
  CAS-BOT-BC238617  Sambucus nigra subsp. caerulea Lowell Ahart 1968-5-8 s.n. Butte Peter Ahart Ranch, Honcut 150 Comment
  CAS-BOT-BC238622  Sambucus nigra subsp. caerulea A. A. Heller 1914-4-27 11326 Butte 8 miles north of Oroville Comment
  CDA42912  Sambucus nigra subsp. caerulea L. Ahart 2012-7-5 18280 Butte On the south side of Big Chico Creek, east of the Deer Pen, between Tables 12 & 13, Lower Bidwell Park, Chico. 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
  RSA754445  Sanicula bipinnata L. Ahart 2009-4-17 15558 Butte S slope of a ridge, about 150-200 yards W of Highway 32, near the S boundary, Upper Bidwell park, about 5 air miles NE of Chico. 373 Comment
  CHSC90591  Sanicula bipinnatifida Gary R. Koses 1979-3-27 11 Butte 11 mi se of Chico, junction of Pentz rd and Pentz Magalia Hwy, s side of Pentz rd. Comment
  JEPS43475  Sanicula bipinnatifida Joan O. Danielson 1966-4-6 26 Butte Cherokee Rd past Oregon Gulch Road 609 Comment
  UCD72989  Sanicula bipinnatifida 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
  CAS-BOT-BC223243  Sanicula bipinnatifida A. A. Heller 1918-5-5 13015 Butte Near Paradise Comment
  SEINET10454569  Sanicula bipinnatifida Lowell Ahart, Peter Ahart 1984-6-10 Ahart 4715 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown; Yellow Pine Forest; 700 m. 700 Comment
  CHSC38746  Sanicula crassicaulis Vernon Oswald 1983-3-7 134 Butte Upper Bidwell Park, Chico, on the s side of Chico Creek ca 300 ft e of the Golf Course. 91 Comment
  CHSC33111  Sanicula tuberosa M. S. Taylor 1981-5-5 3618 Butte E side of spur rd off 21N35Y, ca. 0.5 mi se of Feather Falls trailhead, ca. 1 mi n of Feather Falls community. 822 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
  CHSC45883  Sanicula tuberosa Lowell Ahart 1982-5-8 3412 Butte On the north slope above the road, about 1/2 mile south-west of the Forbestown Reservoir, about 4 1/2 miles north-east of Forbestown. 731 Comment
  SEINET10537480  Saponaria officinalis Mary Susan Taylor Taylor 320 Butte 61 Comment
  POM219526  Sarcodes sanguinea John Copeland 1931-7-1 s.n. Butte Jonesville. 1550 Comment
  SBBG26811  Sarcodes sanguinea E. B. Copeland 1931-7-1 Butte Jonesville Comment
  UC474245  Sarcodes sanguinea H. F. Copeland 1928-8-17 Butte Jonesville Comment
  CHSC1672  Saxifraga californica D. Stover 1929-3-15 Butte Bidwell Park. 91 Comment
  SEINET12216574  Saxifraga californica G. H. Snodgrass 1981-1 PT- 16 Butte ca 8 mi E of Chico, S side of Butte Creek Canyon above Covered Bridge on Humbug Rd 244 Comment
  SEINET12121860  Scandix pecten-veneris Unknown 1985-1 4875 Butte along Table Mountain Boulevard, near Cambell Overflow, a little S of intersection of Hwy 70 & 149 100 Comment
  CAS-BOT-BC283624  Schedonorus pratensis John Thomas Howell 1951-6-26 27520 Butte Big Bend Mt 609 Comment
  CHSC36302  Schoenoplectus acutus var. occidentalis M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4367 Butte Graylodge Waterfowl Refuge, s side of lot 1, ca. 1/2 mi ne of HQ, ca. 12 mi sw of Gridley. 19 Comment
  CHSC66168  Schoenoplectus acutus var. occidentalis Vernon H. Oswald 1996-5-27 7656 Butte 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 drainage on the bed of seasonal marsh at the SW corner of Tract 2, Sanc-tuary II. 33 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
  JEPS110324  Scirpus diffusus Lowell Ahart 2006-7-25 13062 Butte In the west part of a large wet meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
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Feb 23 2009
  JEPS110323  Scirpus microcarpus Lowell Ahart 2006-7-25 13061 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
  CHSC98953  Scleranthus annuus subsp. annuus Lowell Ahart 2008-5-12 14743 Butte Below the high water line of Lake Oroville, on the east side of Sucker Creek, about 100 yards north of where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile west of the Ponderosa Dam. 258 Comment
  SEINET10934975  Scribneria bolanderi Lowell Ahart 1985-5-15 Ahart 4971 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
  CHSC42832  Scutellaria californica L. P. Janeway 1987-5-20 2074 Butte Along hwy 70 1.7 mi NE of Pulga bridge; N Fk Feather River at Poe Dam. 472 Comment
  UC1594542  Scutellaria californica Lowell Ahart 1992-5-9 6761 Butte about 2 air mi n of Oroville (on the n side of the Thermalito Diversion Pool, Lake Oroville Recreation Area, n side of dirt road); Thermalito Diversion Pool, Lake Oroville Recreation Area 76 Comment
  UC1713627  Scutellaria californica Lewis S. Rose 1940-5-30 40426 Butte 25 mi ne of Oroville (Feather River Canyon); Feather River Canyon 609 Comment
  UC1094741  Scutellaria californica Francia Chisaki 1956-6-1 907 Butte 22 mi s of Butte-Plumas County line (on Hwy alt. #40) Comment
  RSA82375  Scutellaria siphocampyloides F. W. Peirson 1926-6-21 6773 Butte Butte Meadow, Humboldt Road. Comment
  CHSC22684  Sedella pumila Robert A. Schlising 1963-5-4 2548 Butte 6.3 mi E on Cherokee Rd, from jct with Alt Hwy 40. 426 Comment
  CHSC90599  Sedella pumila Ramona Hurst 1984-4-22 9 Butte Found on s side of Humboldt Ave. ca. 6 yds s of rd, 0.5 mi e of intersection with Bruce Rd. 64 Comment
  CAS-BOT-BC416978  Sedella pumila W. J. Follett; E. B. Follett 1963-5-19 s.n. Butte 3.8 mi. W of Paradise on road to Chico Comment
  UCD101975  Sedella pumila R. J. Goedl 1979-4-16 20 Butte 3.5 miles east of Highway 99 and Chico, 20 feet N of Skyway. 213 Comment
  CHSC110142  Sedum spathulifolium L. P. Janeway 2012-4-29 10809 Butte Cascade Range Foothills. Upper Bidwell Park, Chico; South Rim Trail 0.3 km east of the trailhead at east end of Centennial Ave. 92 Comment
  CHSC24643  Sedum spathulifolium S. Deaton 1976-4-23 37 Butte Ca. 1 3/4 mi n of Feather Falls trail parking lot, n side of trail. 853 Comment
  CHSC24945  Sedum spathulifolium M. L. McCrum 1976-4-27 20 Butte Pop. ca. 6.5 mi e of Chico, .1 mi w of Covered Bridge, along creek. 112 Comment
  UC150824  Selaginella hansenii A. A. Heller 1902-5-6 5466 Butte near Clear Creek Berry Canyon Comment
  SEINET10530437  Selaginella hansenii Mary Susan Taylor 1980-3-1 Taylor 2330 Butte T21N R2E se 1/4 sec 15 and ne 1/4 sec 22. Hamlin Canyon quad. West end of Chico City Dump, on N side of Neal Rd, ca. 1 mi E of Hwy 99, ca. 7 mi S of Chico. 76 Comment
  SEINET10966097  Selaginella hansenii Mary Susan Taylor 1979-3-20 Taylor 1959 Butte T21N R4E nw1/4 sec. 21. Cherokee Quad. Along old road on N side of Hwy 70 following West Branch of the Feather River, which begins at S side of bridge over N fork of Feather River, ca. 10 mi N of Oroville; limestone outcrops within Foothill Woodland. 305 Comment
  CHSC30295  Selaginella wallacei M. S. Taylor 1980-5-27 2666 Butte Big Bald Rock. 996 Comment
  CHSC65799  Selaginella wallacei L. P. Janeway 1994-10-23 4760 Butte On lower face of Bald Rock Dome, along Dome Trail; overlooking Middle Fork Feather River. 441 Comment
  CHSC12107  Senecio aronicoides J. M. Pitts 1972-4-19 154 Butte 20 yards se of Humbug Rd. 7.9 mi ne past Honeyrun Bridge. 426 Comment
  SBBG32387  Senecio eurycephalus L. S. Rose 1967-6-11 Butte 3 mi S of Pulga, Feather River Cyn Comment
  SEINET10474907  Senecio eurycephalus var. lewisrosei Mary Susan Taylor 1981-5-21 Taylor 3766 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
  CAS-BOT-BC213666  Senecio lewisrosei Lewis S. Rose 1939-6-7 39247 Butte North Fork of Feather River, 3 mi. s. of Pulga, Canyon side 609 Comment
  CHSC30365  Senecio vulgaris J. D. Jokerst; T. B. Devine, D. Greenstein 1979-4-20 692 Butte Top of North Table Mt, 100 m E of the waterfalls of the S branch of Coal Cr. 365 Comment
  JEPS115244  Senecio vulgaris Lowell Ahart 2009-4-3 15523 Butte Along margins of the gravel road, east of the Cedar Grove parking area in Lower Bidwell Park, Chico 67 Comment
  CHSC86849  Sericocarpus oregonensis L. P. Janeway; Gavin Blosser 2003-8-27 7970 Butte Northern Sierra Nevada Foothills. East side of McCabe Creek arm of South Fork Feather River arm of Lake Oroville; 1.0 km (air) south-southwest of the southern end of Enterprise Bridge. 282 Comment
  CAS-BOT-BC364727  Sericocarpus oregonensis subsp. californicus Lowell Ahart 1981-8-31 3053 Butte West of Forbestown 750 Comment
  CDA32075  Sesbania punicea C. Owens 2010-9-23 s.n. Butte Chico; 10 meters downstream of River Road in Shady Oak Slough (which connects to Little Chico Creek). 0 Comment
  CHSC23130  Setaria pumila M. S. Taylor 1975-10-3 929 Butte At bridge over Little Chico Creek on River Rd, ca. 10 mi w of Chico. 36 Comment
  CHSC47639  Setaria pumila Lowell Ahart 1977-8-14 1550 Butte In a slough, Peter Ahart Ranch, about 1 mile north and 1/4 mile east of Honcut, about 12 miles south of Oroville. 33 Comment
  RSA754578  Sherardia arvensis L. Ahart 2009-4-17 15547 Butte S slope of a ridge, about 150-200 yards W of Highway 32, near the S boundary, Upper Bidwell park, about 5 air miles NE of Chico. 373 Comment
  UCD18736  Sherardia arvensis Vernal Pool Team 2001; Carol Witham and Jennifer Buck 2001-4-10 29 Butte one mi. east of Rock River Mine and parking area, off Cherokee Rd., North Table Mountain, Oroville site. Comment
  CHSC105800  Sibbaldia procumbens Lowell Ahart 2010-9-28 17254 Butte About 20 yards west of Big Kimshew Creek, meadow, 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
  CHSC34955  Sidalcea asprella J. D. Jokerst; R. A. Schlising 1979-5-18 3408 Butte North of Oroville and Table Mt., 1.75 miles S of Cherokee Historical Site on Cherokee Road. Comment
  CHSC84867  Sidalcea asprella L. P. Janeway; John Hunt 2003-6-5 7805 Butte Northern Sierra Nevada Foothills. Northerly-facing slope over-looking Lake Oroville about 173 m west of the south end of Bidwell Bar Bridge, between the Oroville-Quincy Hwy and the lake. 299 Comment
  CHSC38550  Sidalcea calycosa Vernon Oswald 1983-5-9 459 Butte Upper Bidwell Park, Chico, ca. 1600 ft e of Parking Area N (Salmon Hole). 182 Comment
  CHSC43351  Sidalcea calycosa Lowell Ahart 1979-5-7 1860 Butte Along and near Kunkle Creek, about 2 1/2 miles south-east of Paradise. 487 Comment
  UC871456  Sidalcea calycosa A. A. Heller 1914-3-23 11225 Butte 8 mi n Oroville; n of Oroville Comment
  CHSC112929  Sidalcea diploscypha B. Castro 2012-5-9 1918 Butte Sacramento Valley. Between Hwy 99 and the Thermalito Afterbay levee, ca 0.34 mi N of jcn of Hwy 99/Hwy 162W and ca 0.45 mi. S of screened CDFG fishery facility 39 Comment
  UC204918  Sidalcea glaucescens A. A. Heller 1914-8-7 11656 Butte summit back Jonesville; summit back of Jonesville 2133 Comment
  CDA36507  Sidalcea hirsuta Butte County Ag. Comm. 1961-5-1 Butte Near Nelson. 0 Comment
  SEINET10480005  Sidalcea malviflora Mary Susan Taylor 1976-4-4 Taylor 1053 Butte Yellow Pine Forest, ca. 2 mi W of junc tion of Ponderosa Way and Hwy 32, ca. 5-15 ft S of Ponderosa Way, ca. 23 mi NE of Chico; with Sanicula bipinnata. 610 Comment
  CHSC34947  Sidalcea oregana subsp. spicata R. Schlising; R. Banchero 1980-8-1 3958 Butte Near east end of Philbrook Lake. Comment
  CHSC48613  Sidalcea oregana subsp. spicata Vernon Oswald 1983-8-4 951 Butte Chico Meadows, ca. 1 mi n of Butte Meadows. 1292 Comment
  UC478499  Sidalcea oregana subsp. spicata E. B. Copeland 1930-7-15 659 Butte Jonesville 1500 Comment
  CHSC28789  Sidalcea robusta J. D. Prouty 1979-5-23 7905231 Butte Along the s cliffs of Butte Creek Canyon, 900' n of the Skyway, ca. 4 mi e of Chico. 164 Comment
  UC727036  Sidalcea robusta A. A. Heller 1941-5-9 16108 Butte steep roadside bank on the Clark Road about a mi above old Clear Creek Post Office; mi above site of old Clear Creek Post Office Comment
  CDA30191  Silene antirrhina L. P. Janeway, David Toren, Heather Koeth, Duryea Delacroix 2008-6-11 9406 Butte Northern Sierra Nevada Foothills; Plumas National Forest; along French Creek Road about 3.0 road km northeast of Oroville-Quincy Hwy and 1.0 air km west of Mountain House; slopes east above Mosquito Creek. Old road cutbank. Comment
  RSA477840  Silene californica M. M. Boney 1897-1 1724 Butte [Unspecified] Comment
  SEINET5337143  Silene californica M. J. Williams 1967-4-22 s.n. Butte Road to Feather Falls from Oroville. 244 Comment
  CHSC35043  Silene gallica C. W. Dawson 1978-4-21 19 Butte 1.5 mi s of Paradise and junction of Pearson Rd. and Clark Rd. (Hwy. 191) 800 ft nnw of rdwy. at top of ridge. 335 Comment
  CHSC4206  Silene laciniata subsp. californica J. Senter 1967-4-17 24 Butte Located ca. 4 mi. from Horseshoe Lake on north bank off upper Bidwell Rd. 91 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
  UC478523  Silene occidentalis subsp. longistipitata E. B. Copeland 1930-7-28 635 Butte Jonesville 1550 Comment
  CHSC19525  Silybum marianum J. H. Sneed 1972-3-5 8 Butte Found along side Chico-Butte City Hwy. s of Chico. 3.5 mi on right side of road. 59 Comment
  CHSC38032  Sinapis arvensis R. E. Preston 1982-11-5 363 Butte At roadside, n side of Cana Hwy, 100 yds e of Cana-Pine Creek Rd, Cana. 50 Comment
  CAS-BOT-BC74929  Sinapis arvensis Lowell Ahart 1974-5-1 s.n. Butte About 2 miles east of Bangor. 500 Comment
  CHSC546  Sisymbrium officinale E. Canfield 1904-5-10 Butte Hooker Oak Field. 76 Comment
  UC143528  Sisyrinchium bellum Mrs. R. M. Austin July, 1896 34 Butte Colby Comment
  POM107995  Sisyrinchium bellum C. C. Bruce 1897-05 2067 Butte Iron Canyon. Comment
  CHSC42105  Solanum americanum Lowell Ahart 1986-11-9 5440 Butte On the bottom of a pond, about 1/10 mile south of the clay burrow for Oroville Dam, 1/4 mile east of Larkin Road, about 6 miles south-west of Oroville. 36 Comment
  NY821111  Solanum parishii A. A. Heller 1915-4-12 11814 Butte Hills 14 miles northeast of Chico near Rock creek Comment
  UCD126974  Solanum parishii A. A. Heller 1915-4-12 11814 Butte Butte County. 14 miles northeast of Chico near Rock creek. Comment
  SEINET7274374 Image available Solanum parishii A. A. Heller 1915-4-12 11814 Butte 14 mi NE of Chico near Rock Creek Comment
  POM40827  Solidago californica C. C. Bruce 1897-06 1991 Butte Little Chico Comment
  CHSC71163  Soliva sessilis Lowell Ahart 1998-6-9 8005 Butte In the tracks of a dirt road, 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
  CAS-BOT-BC158895  Sorbus scopulina Lowell Ahart 1983-8-16 792 Butte Near a small stream that flows into Butte Creek, about 1 mile east of Butte Meadows 1450 Comment
  CDA43079  Sorghum halepense L. P. Janeway 2011-8-18 10662 Butte Northern High Sierra Nevada.; Plumas National Forest; top of Bloomer Hill. Comment
  UC1099803  Sparganium eurycarpum var. eurycarpum Herbert L. Mason and Verne Grant 1946-8-14 13016 Butte Butte Sink; Sacramento Outing Club Comment
  RSA719718  Spartium junceum Michael A. Vincent, K. Levings 2006-7-29 12893 Butte NE of Chico along Rt. 32. Comment
  CDA3449  Spergula arvensis subsp. arvensis L. Ahart 2003-6-23 10307 Butte Peter Ahart Ranch, about 1/2 mile east of the Palermo Honcut Highway, about 2 miles north of Honcut, about 12 miles south of Oroville. Comment
  JEPS103601  Spergula arvensis subsp. arvensis Lowell Ahart 2002-4-24 9527 Butte 7 air mi S of Oroville (E side of Lone Tree Road, 1 1/8 mi N of Cox Lane, 3 air mi SW of Palermo) 35 Comment
  CAS-BOT-BC390128  Spergularia bocconi Lowell Ahart 1989-5-23 6244 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
  UC426923  Sphenosciadium capitellatum E. B. Copeland 1930-8-4 430 Butte Jonesville 1500 Comment
  POM196150  Spiraea douglasii E. B. Copeland 1929-7-15 374 Butte Jonesville. 1500 Comment
  CHSC20526  Spiraea prunifolia Pamela Caldwell 1972-3-2 Butte CSUC Campus. N entrance Lassen Hall Bridge. Citrus Ave. Comment
  CHSC2431  Spiranthes porrifolia R. Carter 1965-6-15 232 Butte Found 0.5 mi. N of Derrick Rd. on Old Cherokee Rd. along W side of road ca. 5' from edge of road, North Table Mountain ca. 5 mi. N of Oroville. 335 Comment
  CHSC61361  Spiranthes porrifolia Lowell Ahart 1993-7-23 7102 Butte 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
  JEPS108129  Sporobolus creber Lowell Ahart 2005-10-22 12462 Butte Irrigated pasture, Daley Ranch, about 1 mile northeast of Honcut, about 13 miles south of Oroville 34 Comment
  CHSC65424  Stachys ajugoides var. rigida Vernon Oswald 1983-8-17 980 Butte Near Humboldt Rd. between Butte Meadows and Jonesville at the jct. of Colby, Willow, and Butte Creeks. Growing on the edge of Colby Creek. 1493 Comment
  SEINET8037324  Stachys chamissonis H. E. Brown 1897-1 836 Butte Near Clear Creek. Comment
  SD60318  Stachys stricta A. A. Heller 1928-7-14 14684 Butte Butte Meadows on a tributary of Butte Creek. Comment
  UC600628  Stellaria calycantha E. B. Copeland Jul 1930 Butte Jonesville 1500 Comment
  CAS-BOT-BC395114  Stellaria nitens Lowell Ahart 1980-3-26 2069 Butte Near Hurleton 600 Comment
  CHSC27070  Stellaria nitens Sandra C. Morey 1978-3-15 1 Butte Honeyrun Covered Bridge, off Humbug Road, ca. 4.4 mi se of junction Skyway Road and 5.2 mi se of junction Highway 99 at Chico. North facing slope on south side of Butte Creek. 91 Comment
  CHSC50034  Stellaria nitens Lowell Ahart 1990-3-19 6423 Butte Along the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 36 Comment
  CAS-BOT-BC395118  Stellaria nitens Lowell Ahart 1983-3-28 3907 Butte about 1/2 mile SW of the Forbestown Res., along the road where tere is a serpentine slide area, about 4 miles NE of Forbestown 450 Comment
  CAS-BOT-BC181449  Stellaria obtusa E. B. Copeland 1931-7-18 636 Butte Gravel bars on Butte Creek, Jonesville 1500 Comment
  CHSC38392  Stephanomeria exigua subsp. macrocarpa Vernon Oswald 1983-7-3 801 Butte Upper Bidwell Park, Chico, on the north rim ca. 1.2 mi e of the power lines. 280 Comment
  CHSC61633  Stephanomeria lactucina Lowell Ahart 1993-9-8 7173 Butte On a ridge top, about 1 mile east of Snow Mountain. 2103 Comment
  CHSC61299  Stephanomeria paniculata Lowell Ahart 1993-8-8 7153 Butte Near Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC113964  Stipa occidentalis var. californica Lowell Ahart 2014-7-13 19655 Butte About 40 yards south of Philbrook Road, abofrom the large meadow go west to the snow lake, go on about 40 yards to the ridge, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  JEPS94722  Streptanthus diversifolius Lowell Ahart 1998-6-3 7967 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
  CAS-BOT-BC86997  Streptanthus diversifolius Richard Johnson 1950-4-16 s.n. Butte Table Mountain, 5 miles north of Chico. Comment
  CHSC39964  Streptanthus longisiliquus L. Ahart; P. Ahart 1983-6-30 4187 Butte Along edge of dirt road, ca. 3 mi se of Stirling City, on w side of West Branch of Feather River. 1100 Comment
  NY888395  Streptanthus longisiliquus G. Clifton 1997-6-13 35529 Butte Ca. 0.8 km. North of Robley Point 939 Comment
  CAS-BOT-BC87442  Streptanthus polygaloides A. A. Heller 1938-5-28 15120 Butte 23 miles east of Oroville on Highway #24. Comment
  CHSC39956  Streptanthus polygaloides L. Ahart; P. Ahart 1983-6-30 4178 Butte Ca. 1.5 mi ne of Concow Reservoir. NE of Oroville. Along dirt road. 550 Comment
  CAS-BOT-BC87513  Streptanthus tortuosus 1929-4-1 s.n. Butte Flower Show. Comment
  CHSC38020  Streptanthus tortuosus R. A. Schlising 1982-8-1 4366 Butte E of Stirling City at Table Mountain; at N end of mountain. 1859 Comment
  CHSC38054  Streptanthus tortuosus R. E. Preston 1983-5-26 384 Butte Roadside, Hwy 70 ca. 1 3/4 mi SW of Pulga. 548 Comment
  SEINET10448521  Streptanthus tortuosus Mary Susan Taylor 1980-5-27 Taylor 2700 Butte T21N R6E sc sec 30. Big Bend quad. On Big Bald Rock, ca. 3 mi E of Lake Madrone; Yellow Pine Forest, large granite dome 998 Comment
  CHSC30708  Streptanthus tortuosus var. suffrutescens M. S. Taylor 1980-5-27 2700 Butte On Big Bald Rock, ca. 3 mi e of Lake Madrone. 997 Comment
  UCD150344  Stuckenia pectinata William Anderson 1964-7-24 s.n. Butte Colusa Highway and Pennington Rd. Comment
  CHSC49444  Styrax officinalis var. redivivus Vernon Oswald 1984-5-23 1203 Butte Beside the dirt road leading to the falls on Bear Ranch Creek s-e of Calif. Hwy 70 at the Cresta Rest Area. 487 Comment
  CHSC652  Swertia albicaulis var. nitida R. M. Staley 1952-7-13 Butte Butte Creek. 457 Comment
  SBBG119858  Swertia albicaulis var. nitida L. Ahart 2003-7-20 10435 Butte S side of Bean Crk Rd, ca. 1/8 mi N of Little Bald Rock, ca. 2 air mi SE of Brush Crk 987 Comment
  SEINET10465014  Symphoricarpos Mary Susan Taylor 1974-3-19 Taylor 83 Butte Along Butte Creek at Honey Run Covered Bridge, ca. 10 mi E of Chico. Comment
  CAS-BOT-BC234615  Symphoricarpos mollis F. N. Bassett 1923-7-16 s.n. Butte Jonesville via Butte Meadows Comment
  CHSC11848  Symphyotrichum ascendens E. B. Copeland 1930-8-4 485 Butte Jonesville. 1500 Comment
  CHSC102625  Symphyotrichum bracteolatum Lowell Ahart 2009-7-9 16026 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-BC99039  Symphyotrichum cusickii E. B. Copeland 1930-8-26 487 Butte Jonesville 1500 Comment
  CHSC63806  Symphyotrichum spathulatum S. C. Morey 1983-8-1 662 Butte Chico Meadows. On E side of Scout Rd., ca. 1 mi N of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  CHSC105795  Symphyotrichum spathulatum var. spathulatum Lowell Ahart 2010-9-21 17226 Butte On the south side of a poor dirt road, about 1 mile (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1899 Comment
  JEPS107333  Tamarix parviflora Lowell Ahart 2005-4-2 11697 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
  CDA13257  Tanacetum parthenium G. F. Hrusa, T. D. Wilfred 1996-7-9 13108 Butte Plumas National Forest; Drainage of Jordan Creek, S of Hwy 162 near Roger's Cow Camp. Comment
  CHSC45033  Tanacetum vulgare Lowell Ahart 1988-9-4 6172 Butte Along both sides of the Skyway, south end of Stirling City. 1075 Comment
  JEPS115243  Taraxacum officinale Lowell Ahart 2009-4-3 15522 Butte On the east side and along margins of the gravel road, east of the Cedar Grove parking area in Lower Bidwell Park, Chico 67 Comment
  CHSC104773  Tauschia kelloggii L. P. Janeway 2010-7-20 10108 Butte Northern High Sierra Nevada. Plumas National Forest; 2.6 air km southwest of Brush Creek along top of major ridge that trends southwest from Brush Creek, east of Galen Ridge; between Bald Rock Road and Road 21N31Y. 1027 Comment
  CHSC26830  Tauschia kelloggii M. S. Taylor 1978-5-6 1624 Butte On n side of Ponderosa Way, ca. 4 mi e of Cohasset. 609 Comment
  RSA304699  Tellima grandiflora James R. Shevock 1972-5-19 1787 Butte Feather River Cyn. 625 Comment
  SEINET12218038  Tellima grandiflora M. S. Taylor, Oswald, V. 1985-1 5510 Butte along Four Trees Rd between Hwy 70 & Coyote Gap, ca 25 air mi NE of Oroville Comment
  UC9665  Thalictrum fendleri var. polycarpum Edw. L. Greene 1889-1 Butte Chico Comment
  SEINET10471411  Thelypteris nevadensis Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4222 Butte T21N R6E sec 10? Ca. 2 mi s of Milsap Bar, ca. 23 mi ne of Oroville. Yellow Pine Forest; 750 m. 750 Comment
  CHSC39779  Thysanocarpus curvipes Carol S. Ellingboe 1978-4-25 12 Butte Ca. 1 km s of Rock Creek and 22 km ne of Chico, 4.8 km sw of Cohasset. 535 Comment
  HSC23288  Thysanocarpus curvipes D. C. Polen 1971-4-8 27 Butte 10 mi. N of road, 0.6 mi. E on Skyway from its junction with Hwy. 99E Chico 70 Comment
  CHSC24155  Thysanocarpus curvipes var. elegans B. Bunge 1976-4-22 18 Butte Ca. 100 yd. s of Skyway, ca. 8 mi. ese of Chico. 259 Comment
  CHSC567  Thysanocarpus radians P. Delaplane 1965-4-6 30 Butte E. of Cohasset Rd. 3/4 mi. above turn of Richardson Springs, Chico. 243 Comment
  UC1562453  Thysanocarpus radians Lowell Ahart 1990-4-23 6463 Butte about 1/2 mi e of Larkin Road about 1 mi s Oroville Airport; s of the Oroville Airport 45 Comment
  HSC30340  Thysanocarpus radians Patricia Datzman 1974-4-20 24 Butte Cherokee Mtn. Rd., 2 mi. S of Cherokee Comment
  SEINET11985468  Thysanocarpus radians T. E. Lewis 1978-1 12 Butte E of Cheerokee Rd, ca 1.5 km S of Cheerokee 400 Comment
  UC203645  Tofieldia occidentalis subsp. occidentalis A. A. Heller 1914-8-7 11654 Butte Butte Meadows 1219 Comment
  RSA190695  Torilis arvensis T. C. Fuller 1967-6-1 15920 Butte N side of Durham Hwy, 1.1 mi W. of Hwy 99, 0.2 mi E of Hamlin Rd., Durham Comment
  CHSC42682  Torilis arvensis subsp. arvensis Vernon Oswald 1985-6-24 1863 Butte Doe Mill Rd. 0.4 mi w of Butte Creek. 682 Comment
  CHSC111980  Torilis arvensis subsp. purpurea Lowell Ahart 2012-6-2 18130 Butte Along the sides of Truex Rd., W of intersection of Truex Rd. and Trevor Rd., about 1/8 mi. NW of West Branch Bridge across Lake Oroville. 286 Comment
  CDA13332  Torreya californica G. F. Hrusa, T. D. Wilfred 1996-7-9 13178 Butte Sierra Nevada; Small colony in shaded woods approx. 0.4 m from Hwy 162 on 22N89. Tree, approx. 10 m tall. Uncommon here. Immed. S of Rogers Cow Camp. Comment
  CHSC61656  Torreyochloa pallida var. pauciflora Lowell Ahart 1993-9-13 7234 Butte In Bolt Creek, about 1 mile south-east of Butte Meadows. 1325 Comment