Search Results — 2000 specimen records retrieved (1594 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC818137  Abies concolor A. A. Heller 1917-7-26 12849 Butte Butte Meadows Comment
  CHSC5956  Acanthus mollis M. MacArthur 1968-6-17 196 Butte Ca. 60 ft. NW of Biology Stockroom, Chico State College campus. 60 Comment
  CAS-BOT-BC330576  Acer circinatum A. A. Heller 1919-5-17 13159 Butte Banks of the Feather river near Stirling Comment
  SEINET10453999  Acer negundo subsp. californicum Mary Susan Taylor Taylor 441 Butte Campus of the California State University, Chico. 61 Comment
  CAS-BOT-BC21702  Achillea millefolium Helen Edwards 1917-6-1 s.n. Butte De Sabla Comment
  CHSC25443  Achillea millefolium Marc Hayes; Warner 1977-9-11 82 Butte Along Butte Meadows Rd. (Humboldt Rd) below Jonesville, exactly 9.2 mi from junction with Hwy 32, near piped spring adjacent Cherry Hill campground. 1280 Comment
  SEINET10663560  Achnatherum occidentale Lowell Ahart, Vernon H. Oswald 1999-7-26 Ahart 8123 Butte T18N, R12E, southwest 1/4 Section 34. On a ridge about 75 yards west of Grouse Ridge Road (Road 14) and about 1/2 mile southwest of the Lookout, about 5.5 miles northeast of Bowman Lake Road (Road 18), about 4.5 miels (air) south of Bowman Lake. 2134 Comment
  CHSC59059  Achnatherum occidentale subsp. californicum Lowell Ahart 1992-7-26 6843 Butte About 1/2 mile north of the Carr Mine, about 2 (air) miles south of Snow Mountain. 1767 Comment
  JEPS87144  Achnatherum occidentale subsp. occidentale Lowell Ahart 1992-7-29 6875 Butte 3/4 mi nw Lotts Lake (1 mi ne of the Carr Mine) 1798 Comment
  CAS-BOT-BC218050  Achnatherum stillmanii Lowell Ahart 1983-6-30 4190 Butte About 1.5 miles SE of Stirling City 1100 Comment
  CHSC30946  Achnatherum stillmanii L. Ahart 1980-6-22 2446 Butte Ca. 19 m north of the county line, along the edge of La Porte Rd, 1 m ne of Woodleaf. 1000 Comment
  CHSC113810  Achyrachaena mollis M. Ocken 2011-5-2 Butte Cottonwood Rd. Collected from roadside in open country just outside fenced cattle grazing area. 57 Comment
  CHSC31120  Achyrachaena mollis Roberta A. Boer 1980-4-25 17 Butte Ca. 1/4 mi n of Humboldt Rd. and 1.5 mi e of the jct of Hwy 32 and Hwy 99, ca. 2.0 mi e of Chico. 131 Comment
  CHSC3259  Achyrachaena mollis Virginia Hagaman 1966-4-17 112 Butte 1.2 miles south east of Hooker Oak. Comment
  RSA416297  Achyrachaena mollis M. Vincent 1962-4-15 191 Butte Skyway, four miles West of Paradise, overlooking Butte Creek Canyon. Comment
  CHSC26746  Acmispon americanus var. americanus M. S. Taylor; M. Hayes 1977-8-16 1440 Butte On both sides of Williams Rd, ca. 1/2 mi n of its jct with Pentz Rd, on Butte College Campus, ca. 15 mi s of Chico. 60 Comment
  CHSC28528  Acmispon americanus var. americanus M. S. Taylor 1979-8-4 2171 Butte On Hwy 70, ca. 1 mi n of Cresta Powerhouse, ca. 30 mi n of Oroville. 487 Comment
  UCD103797  Acmispon americanus var. americanus A. A. Heller 1914-8-11 11675 Butte Chico-Hamilton road, 6 miles from Chico. Comment
  UCD103808  Acmispon americanus var. americanus A. A. Heller 1916-9-8 12651 Butte Ten mile house east of Chico. Comment
  CHSC43416  Acmispon brachycarpus Lowell Ahart 1977-4-28 1322 Butte Along the edge of Ponderosa Way, near the Ponderosa Dam, about 4 miles north-west of Forbestown. 457 Comment
  CHSC90380  Acmispon brachycarpus Lisa J. Newsum 1984-4-19 19 Butte Bidwell Heights Rd., 1 1/4 from jct. with Hwy 32, 7 mi e of Chico. 304 Comment
  CHSC58266  Acmispon glaber Lowell Ahart 1992-5-9 6763 Butte Growing on the north side of the dirt road, on the North side of Thermalito Diversion Pool, Lake Oroville Recreation Area, about 2 (air) miles north of Oroville. 76 Comment
  CHSC45285  Acmispon glaber var. glaber Vernon Oswald 1988-4-28 3289 Butte Hwy 99 along the Thermalito Afterbay, 0.5 mi s of Hwy 162 (east). 33 Comment
  RSA0037018  Acmispon nevadensis var. nevadensis Lowell A. 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. 245 Comment
  JEPS122003  Acmispon strigosus Lowell Ahart 2014-5-13 19458 Butte Below the high water line of Lake Oroville, about 250 yards southeast of the trail, trail starts at the parking area at the Enterprise Boat Launch Area, about 11 miles (air) east of Oroville. Comment
  CHSC2835  Acmispon wrangelianus David Prall 1965-4-25 29 Butte Growing on roadside bank, on north side of Humbug Rd. 0.3 miles west of junction with Honeyrun Rd. (cvered Bridge). 152 Comment
  CHSC33336  Aconitum columbianum R. Banchero 1980-8-1 330 Butte 0.4 mi w of the e end of Philbrook Lake, 4.3 mi se of the jct of Skyway and Philbrook Rd. Mdw. 1706 Comment
  CHSC58948  Aconitum columbianum Lowell Ahart 1992-7-26 6844 Butte Along a stream, about 1/2 mile north of the Carr Mine, about 2 (air) miles south of Snow Mountain. 1767 Comment
  CAS-BOT-BC412868  Aconogonon davisiae E. B. Copeland 1931-6-19 629 Butte Jonesville 2100 Comment
  CHSC100925  Aconogonon phytolaccifolium R. A. Schlising; Pauleen Broyles 1986-8-5 4497 Butte Close to Plumas County line, at beginning of Scotts John Creek. 1889 Comment
  CHSC40409  Aconogonon phytolaccifolium Lowell Ahart 1985-7-9 5118 Butte Along Fall River, about 100 yards south of the bridge across Fall River, about 1/2 mile west of Lumpkin Ridge Road, about 2 1/2 miles north-east of Camp 18, about 9 miles north-east of Feather Falls. 914 Comment
  CHSC41299  Adenocaulon bicolor S. C. Morey 1983-7-22 552 Butte Cherry Hill Meadow. On N side of Humboldt Rd., ca. 3.2 mi E of Butte Meadows. 1414 Comment
  RSA718733  Adenocaulon bicolor L. Ahart 2006-7-25 13053 Butte About 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1570 Comment
  UC1562402  Adiantum aleuticum Vernon Oswald and Lowell Ahart 1990-6-20 4308 Butte between Philbrook Reservoir and Carr Mine (ca 0.5 mi w of Butte-Plumas Co line, s side of Philbrook Creek) 1981 Comment
  CHSC91468  Aegilops triuncialis Lowell Ahart 2005-7-12 12142 Butte Poor road on the south side of Forest Road 21N40, about 100 yards west of Encina Grade Road (Bloomer Hill Road) (Forest Road 21N39). about 3/4 mile (air) west of Bloomer Hill, about 6 miles west of Oroville Quincy Highway. 822 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
  CHSC90077  Aesculus californica Elizabeth A. Ballou 1991-4-23 7 Butte About 0.25 mi up Cohasset Ridge off of Cohasset Highway. 335 Comment
  RSA458170  Aesculus californica M. M. Boney 1897-1 4217 Butte [No location information on label.] Comment
  UC175551  Aesculus californica A. A. Heller 1913-5-25 10756 Butte near Pents <Pentz> 152 Comment
  CHSC5988  Agapanthus africanus M. MacArthur 1968-6-12 136 Butte Ca. 50 ft. NW of Biology Stockroom in Life Science Bld., Chico State College campus, Chico. 60 Comment
  JEPS87534  Ageratina occidentalis Lowell Ahart 1993-9-8 7167 Butte on top of ridge about 1/2 mi e Snow Mountain; e of Snow Mountain 2103 Comment
  CDA34629  Agoseris grandiflora L. Ahart 2009-6-19 15918 Butte On the north side of Ten Mile House Road, Upper Bidwell Park, about 3/8 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. Comment
  CHSC44148  Agoseris grandiflora Vernon Oswald 1988-8-3 3657 Butte Meadow on the N side of Butte Creek E of the road island on Humboldt Rd. S of Cherry Hill Campground. 1414 Comment
  CAS-BOT-BC22966  Agoseris heterophylla A. A. Heller; H. E. Brown 1902-5-6 s.n. Butte Berry Canyon (Near Clear Creek) Comment
  CHSC42474  Agoseris heterophylla Lowell Ahart 1987-5-6 5497 Butte Along the North Fork of the Feather River, Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CAS-BOT-BC13347  Agoseris retrorsa M. S. Taylor 1981-5-4 3594 Butte SW of 21N80, S side of spur road near Plantation, ridge south of Galen Ridge, ca 3 mi SW of Brush Creek 914 Comment
  CAS-BOT-BC447796  Agrimonia gryposepala John Thomas Howell 1962-6-15 37526 Butte Serpentine area, Magalia 731 Comment
  HSC38056  Agrostis avenacea Thomas W. Nelson, Jane P. Nelson 1976-5-9 2461 Butte Dry meadow at intersection of Palermo Rd. & Hwy 70, about 4 mi. S of Oroville Comment
  JEPS95146  Agrostis capillaris Lowell Ahart 1997-9-27 7915 Butte back yard at the Ehmann Home, corner of Lincoln and Robinson Streets, Oroville Oroville 51 Comment
  CHSC90993  Agrostis elliottiana Lowell Ahart 2005-5-11 11800 Butte On the bottom of a small vernal pool, south part of North Table Mountain, about 300 yards northwest of the poor dirt road off of Cherokee Road, about 200 yards south of the rim into Beatson Hollow, about 7 miles (air) north of Oroville. 354 Comment
  CAS-BOT-BC127375  Agrostis exarata Lowell Ahart 1982-9-13 3828 Butte Along a small stream that flows into Pinkard Creek, below the dirt road, which is along Pinkard Creek, about 1/8 mile north of the Lost Creek Res. Dam, about 2 and 1/8 miles northwest of Strawberry Valley. 1100 Comment
  CHSC69732  Agrostis exarata Lowell Ahart 1997-10-20 7919 Butte On the west side of the sharp bend in the South Fork of the Feather River, about 1/4 mile north of the bridge across the river, about 3/4 mile north of Golden Trout Crossing, 3 miles (air) northwest of Sly Creek Reservoir Dam. 914 Comment
  JEPS120097  Agrostis exarata Lowell 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
  UC1594714  Agrostis exarata Lowell Ahart 1992-8-2 6907 Butte about 3 (air) mi ne Concow Reservoir; Concow Meadow 1097 Comment
  CHSC59034  Agrostis exarata var. exarata Lowell Ahart 1992-8-2 6907 Butte In Concow Meadow, about 3 (air) miles north-east of Concow Reservoir. 1097 Comment
  RSA299243  Agrostis gigantea M. S. Taylor 1978-8-21 1796 Butte Lake Madrone at its s jct with Oroville-Quincey Hwy ca. 10 mi ne of Oroville. 610 Comment
Read comments
Oct 9 2010
  SEINET10942291  Agrostis hyemalis A. Arthur Heller 1914-8-6 Heller 11647 Butte Found sparingly in wet ground in Chico Meadwos, associated with carex, juncus, Micranthes sierrae, Mimulus, Epilobium and other meadow plants. 1219 Comment
  CHSC46689  Agrostis idahoensis V. Oswald; L. Ahart 1989-8-15 3944 Butte Soda Ridge Rd, 1.4 mi w of its junction with Coon Hollow Rd, ca. 1.2 mi (air) n of Philbrook Reservoir. 1752 Comment
  JEPS121947  Agrostis idahoensis Lowell Ahart 2014-7-7 19587 Butte In the bog, Coon Hollow, about 2 miles (air) north of Philbrook Reservoir. Comment
  JEPS94190  Agrostis microphylla Lowell Ahart 1998-4-29 7952 Butte ca. 7 mi. n. Oroville (n.e. of large parking area on North Table Mt., on e. side of Cherokee Rd.); North Table Mt. 426 Comment
  CAS-BOT-BC139079  Agrostis pallens Lowell Ahart 1987-7-10 5818 Butte Near Forbestown Road, east of the intersection of Forbestown Road and Black Bart Road, about 1 mile west of Robinson Mill Road, about 6 miles southwest of Forbestown. 670 Comment
  LA206334  Agrostis stolonifera H. S. Yates; 1936-8-13 6105 Butte 2.5 SE of Butte Meadow 1493 Comment
  CHSC44914  Agrostis thurberiana Lowell Ahart 1988-7-31 6152 Butte On the east side of the West Branch of the Feather River, north of the bridge, about 4 road miles north of Stirling City. 914 Comment
  CHSC42838  Aira caryophyllea Lowell Ahart 1987-5-6 5546 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  SEINET3449085  Alisma lanceolatum Unknown 2003-6-23 10303 Butte Oroville, Oroville, about 12 miles south, Peter Ahart Ranch, about 2 1/8 miles north of Honcut, about 300 yards east of Palermo Honcut highway 30 Comment
  CHSC31017  Alisma triviale M. S. Taylor; J. D. Jokerst 1979-11-11 2285 Butte Comment
  CHSC97373  Alisma triviale Paul Maslin 2006-6-15 39 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). Man made pond near reserve headquarters. UTM: 10611097E 4411325N. 487 Comment
  CHSC90049  Allium amplectens Laurie L. Gordon 1991-4-17 10 Butte 3 mi e of Hwy 99, ca. 250 ft s of Hwy 32. 54 Comment
  POM169472  Allium amplectens E. B. Copeland 1903-5-2 2871 Butte Chico Comment
  SEINET225644  Allium amplectens Unknown 1980-5-6 3269 Butte Peter Ahart Ranch ca 2 1/2 mi NNE of Honcut between Oroville and Marysville, Valley Grassland, 30 Comment
  UC398901  Allium campanulatum E. B. Copeland 1929-7-3 350 Butte Jonesville 1550 Comment
  UC725433  Allium campanulatum A. A. Heller 1938-5-28 15113 Butte 22 mi from Oroville (along the Feather River Highway e side of Jarboe Pass); Feather River Highway, Jarboe Pass 609 Comment
  UC843257  Allium campanulatum A. A. Heller 1938-5-28 15113 Butte 22 mi from Oroville (along Feather River Highway); Feather River Highway 609 Comment
  SEINET194962  Allium cratericola A. A. Heller 1938-4-3 15012 Butte Table Mountain, north of Oroville. Comment
  CAS-BOT-BC135820  Allium jepsonii B. Castro 1993-7-5 492 Butte On saddle between Big Bar Mtn and Hungry Hunt Peak, on WSW-facing slope below N edge of sharp curve in USFS Rd 23N28. 1133 Comment
  CHSC36954  Allium membranaceum R. Schlising; R. Banchero 1980-6-5 3639 Butte N of Lake Oroville along Hwy 70, ca 3 mi S of the Pulga Crossing of Feather River. 640 Comment
  CHSC4371  Allium membranaceum R. L. Smith 1966-5-28 Butte 3 mi. w of DeSabla. Comment
  CHSC96343  Allium obtusum var. conspicuum L. P. Janeway; B. Castro 2006-5-7 8575 Butte Northern High Sierra Nevada. Top of serpentine area southeast of the east end of Hollywood Road, upper Magalia; more or less overlooking Little Butte Creek about 600 m north-northwest of the upper end of Magalia Reservoir. 756 Comment
  CHSC46070  Allium obtusum var. obtusum J. D. Jokerst; R. Schlising, M. Foster 1983-5-24 1781 Butte At the summit of Bald Rock Dome (Middle Fork Feather River) at its south edge. Comment
  UCD80417  Allium peninsulare var. peninsulare CNPS SN Foothill Team 2005-5-26 SNNR 0204 Butte City of Chico, Upper Bidwell Park, off of the Guardian Trail SE of the intersection with the Humboldt Trail. 340 Comment
  CAS-BOT-BC132070  Allium peninsulare var. peninsulare Carl B. Wolf 1937-5-13 8658 Butte Sierra Nevada Foothills, 6 6/10 mi. SE. of Oroville on road to Wyandotte 121 Comment
  CHSC89465  Allium sanbornii var. sanbornii R. D. Fischer 2004-7-18 448 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). Located along Big Chico Creek, E side, at S end of BCCER. 400 ft N of gated end of Bidwell Park. 227 Comment
  CAS-BOT-BC265  Allocarya conjuncta Dr. E. B. Copeland 1903-5-15 s.n., distributed as Baker's 3046 . Butte Chico Comment
  JEPS104414  Allophyllum divaricatum Lowell Ahart 2003-7-10 10369 Butte On both sides of the dirt road to the power generator, on the n side of Ponderosa Reservoir, ca 1 1/2 mi (air) e of the Ponderosa Dam. 331 Comment
  SD122561  Allophyllum divaricatum Lowell Ahart 1984-6-8 4664 Butte At the Ponderosa Dam, ca. 2.0 miles northwest of Forbestown. 370 Comment
  CHSC26879  Allophyllum integrifolium E. B. Copeland 1929-7-29 393 Butte Jonesville. 1625 Comment
  SD7682  Allophyllum integrifolium Daniel Cleveland Jun 1882 Butte Sutten House Comment
  CHSC49849  Alopecurus carolinianus Vernon Oswald 1990-4-4 4144 Butte Vinton Gulch access to the West Branch of Lake Oroville, ca. 0.5 mi (air) north of Cherokee. 262 Comment
  UCD55880  Alopecurus carolinianus L. Ahart 1982-5-10 3430 Butte Peter Ahart Ranch, ca. 2 mi northeast of Honcut. 50 Comment
  SEINET10790510  Alopecurus carolinianus Lowell Ahart 1990-4-15 Ahart 6450 Butte Below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/8 mile north-west of the Enterprise Bridge across Lake Oroville. T19N R6E nw/S6. Foothill woodland (destroyed). Carolina Foxtail. 290 Comment
  SEINET3450788  Alopecurus saccatus Unknown 2003-5-28 10235 Butte Oroville, Oroville, about 7 miles north, north Table Mountain, about 1.75 miles west of the iron gate and fence west of Cherokee Road, bottom of Hendricks ditch 270 Comment
  CHSC83056  Amaranthus albus Lowell Ahart 2002-10-17 9985 Butte On the hills below the high water line of Lake Oroville, about 1 1/2 miles south of Highway 162 (Oroville Quincy Highway), about 3 miles (air) northeast of Oroville Dam. 227 Comment
  CHSC96932  Amaranthus albus Lowell Ahart 2007-6-3 13973 Butte On the east side of the bridge across Concow Creek, east side of Jordan Hill Road, about 1 1/2 miles (air) southwest of Concow Reservoir. 415 Comment
  JEPS124124  Amaranthus blitoides Lowell Ahart 2015-10-9 20541 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
  CDA42944  Amaranthus deflexus L. Ahart 2012-10-2 18516 Butte On the south side of the paved park road, about 30 yards east of Table 33, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CHSC85442  Amaranthus retroflexus R. D. Fischer 2003-10-25 13 Butte Chico. Located in northeast corner of town on the west side of Ceanothus Ave, cross street Brenni. Along drainage channel. 70 Comment
  CHSC43584  Amaranthus rudis Vernon Oswald 1987-6-12 2990 Butte East side of Sacramento River just n of Golden State Island (perhaps technically in Glenn County because of shifting channel). 33 Comment
  CHSC85142  Amaranthus rudis John Dittes 2003-10-8 847 Butte Undesignated section of Arroyo Chico Land Grant. Northern Sacramento Valley; ca. 6.0 air-miles west by southwest of Chico, ca. 2.3 air-miles south of State Hwy 32, east bank of Sacramento River, Bidwell-Sacramento River State Park. 38 Comment
  UC1562346  Ambrosia artemisiifolia Vernon Oswald and Lowell Ahart 1990-7-31 4425 Butte on n side of Concow Reservoir ((Camelot Estates Subdivision)) 621 Comment
  CHSC26622  Ambrosia psilostachya M. P. Hayes 1977-9-24 120 Butte In drainage of Little Butte Creek where Little Butte Creek intersects road Z (Chico-Butte City Highway). 30 Comment
  CHSC38320  Ambrosia psilostachya Vernon Oswald 1983-8-27 1033 Butte Upper Bidwell Park, Chico, between the parking areas at Bear Hole and Diversion Dam. 121 Comment
  SEINET10971204  Ambrosia psilostachya var. californica Mary Susan Taylor 1977-8-19 Taylor 1505 Butte Abundant in slough ca. 3 mi E of junction of Hwy 42 with Hwy 162, on Hwy 162, S of Chico; with huge population of Hibiscus californicus. 30 Comment
  CHSC30019  Amelanchier pallida L. Ahart 1980-5-19 2315 Butte South Fork of the Feather River. Ca. 1/9 mi n of the Golden Trout Crossing, ca. 5 mi w of the Sly Creek Dam. Near bridge. 800 Comment
  CHSC1027  Ammannia coccinea V. Holt 1945-10-2 Butte Butte Creek canyon. 91 Comment
  CHSC101256  Amsinckia intermedia Lowell Ahart 2009-4-17 15545 Butte On the south slope of a ridge, about 150 yards west of Highway 32, near the south boundary, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 373 Comment
  CHSC3627  Amsinckia intermedia John Francis 1966-2-28 45 Butte Upper Bidwell Park, in canyon across road from and 1/4 mile E. of Salmon Hole. Comment
  SEINET12319577  Amsinckia intermedia J. B. Locey 1975-1 4 Butte ca 50 yds W of Hicks Lane and 100 yds E of Hwy 99, 3 mi N of Chico 59 Comment
  UCD119727  Amsinckia lycopsoides A. A. Heller 1914-4-21 11310 Butte Chico. Comment
  SEINET10937963  Anaphalis margaritacea Lowell Ahart 1991-8-25 Ahart 6710 Butte On the north side of Four Trees Road, near a small branch of Mill Creek, about 5 miles east of Highway 70. Yellow Pine Forest. T22N R5E N/C/S2. 1067 Comment
  JEPS95957  Anchusa officinalis Vernon H. Oswald 1999-4-24 9720 Butte Genetic Resource Center (old USDA Plant Introduction Station) in south Chico: T21N R2E SE1/4 NW1/4 Sect. 5, 230 ft, agricultural area. Localized weed growing in the NE corner of the intersection of farm roads directly S of the headquarters building. 70 Comment
  UCD56083  Andropogon virginicus Alva W. Mitchell 1957-9-25 s.n. Butte Butte County. Comment
  CHSC33634  Anemone occidentalis R. E. Preston; R. A. Schlising, R. Banchero, D. Burk 1981-7-21 113 Butte Snow Mtn, ca. 7.2 km se of Jonesville. 2050 Comment
  SEINET10939832  Angelica breweri Lowell Ahart 1985-7-24 Ahart 5151 Butte Along the Forbestown Ditch, abut 2 1/2 miles north-east of Forbestown. Comment
  CHSC106604  Anthriscus caucalis L. P. Janeway 2011-4-13 10231 Butte Sacramento Valley. Oroville; just west of Centennial Park, along the bicycle path on the north slope of the levee on the south side of Feather River. 49 Comment
  CHSC20056  Anthriscus caucalis M. S. Taylor 1975-4-25 497 Butte Abundant along dirt rd, ca. 1/4 mi e of Cohasset Rd, ca. 10 mi ne of Chico. Comment
  CHSC43152  Antirrhinum cornutum R. A. Schlising 1980-7-25 3918 Butte Along Humbolt Road, 1.9 mi NE of jct with Hwy 32 at Lomo; NW-facing slopes of volcanics mudflow outcrops on Carpenter Ridge. 1341 Comment
  CHSC1685  Antirrhinum vexillo-calyculatum subsp. intermedium E. Walker 1932-7-26 Butte Magalia Heights. 762 Comment
  RSA716512  Aphanes occidentalis L. Ahart 2005-3-17 11660 Butte 50 yards S of the fence, on the E side of very poor dirt road, 1/8 mile NW of Indian Cave, 3/4 mile W of Big Chico Creek, about 4.5 miles (air) NE of Chico Comment
  CHSC11865  Apocynum androsaemifolium E. B. Copeland 1930-7-7 442 Butte Jonesville. 1650 Comment
  CHSC44152  Apocynum androsaemifolium V. Oswald; L. Ahart 1988-7-29 3638 Butte Ca. 5 mi (air) se of Jonesville on the n edge of the ridge running eastwards from the peak of Snow Mtn. 2103 Comment
  UC1562405  Apocynum cannabinum Lowell Ahart 1990-6-16 6514 Butte ca. 1/2 mi. s.w. of Enterprise Bridge across Lake Oroville (Lake Oroville); Lake Oroville 259 Comment
  CHSC45020  Aquilegia formosa var. truncata Kirsten Tarp 1982-7-21 220 Butte N part of county, near Philbrook Resevoir. 1706 Comment
  POM99580  Aquilegia formosa var. truncata R. M. Austin, J. Bruce 1898-05 2423 Butte [Unspecified] Comment
  CHSC57799  Arabidopsis thaliana Vernon H. Oswald; Lowell Ahart 1992-4-8 4896 Butte Trail near the abandoned railroad grade in Oroville Dam Recreation Area on the S side of Thermalito Diversion Pool, between the spillway and Sycamore Hill. On trailside bank. 76 Comment
  JEPS119576  Arabidopsis thaliana Lowell Ahart 2012-4-17 17873 Butte About 200 yards southeast of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. Comment
  SFV8784  Arbutus menziesii F. Polach 1967-4-22 12 Butte Feather Falls, 1.5 miles from railroad along Lumpin Road. 915 Comment
  CHSC584  Arbutus unedo 1935-4-28 Butte Bidwell grounds, Chico. Comment
  CHSC33970  Arceuthobium abietinum M. S. Taylor; L. Ahart 1981-8-15 4185 Butte N end of Snag Lake, e side of Humbug Rd, ca. 14 mi ne of Stirling City. 1737 Comment
  POM161691  Arceuthobium abietinum E. B. Copeland 1929-07 s.n. Butte Jonesville. 1600 Comment
  JEPS115634  Arceuthobium occidentale Lowell Ahart 2009-8-23 16301 Butte South edge of a small open meadow, about 150 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 259 Comment
  CHSC4596  Arctostaphylos C. Glascock 1965-2-27 200 Butte Ca. 15 yds. N of corner of Meadowview and Oro-Quincy Hwy., 2 mi E of Oroville. 36 Comment
  CAS-BOT-BC24432  Arctostaphylos manzanita Lowell Ahart 1975-4-3 s.n. Butte Near Honcut. 76 Comment
  RSA633004  Arctostaphylos manzanita Jon E. Keeley 1996-6-20 27450 Butte Approximately 1/2 km west of Cohasset. 570 Comment
  CAS-BOT-BC24414  Arctostaphylos manzanita subsp. manzanita A. A. Heller 1928-1-23 14474 Butte At the Ten Mile House. Comment
  UC726641  Arctostaphylos mewukka A. A. Heller 1942-1-29 16355 Butte on State Hwy 32 near Lone Pine Forestry Station (14 mi e of Chico) Comment
  UC726979  Arctostaphylos mewukka A. A. Heller 1942-1-4 16347 Butte Pentz-Magalia Rd 4 mi below Paradise Comment
  CHSC108844  Arctostaphylos mewukka subsp. mewukka Lowell Ahart 2012-2-22 17751 Butte On the high bank, on the south side of Ten Mile House Road, about 1/2 mile west of Highway 32, about 9 miles (air)northeast of Chico. 335 Comment
  CAS-BOT-BC38570  Arctostaphylos mewukka subsp. truei Walter Knight; Irja Knight 1981-5-25 4109 Butte 27 mi. n. of Chico, state hwy. #32. 1066 Comment
  UCD40394  Arctostaphylos patula Rodney Gale Myatt 1971-6-13 721 Butte 1 mi. north of Inskip. Skyway Road, north of Paradise. Road between Butte Meadows and Magala. Comment
  SEINET11987209  Arctostaphylos truei W. Knight, Knight, I. 1981-1 4109 Butte 27 mi N of Chico, Hwy 32 1067 Comment
  SJSU10836  Arctostaphylos viscida L. J. Ericsen 1955-4-16 106 Butte between Paradise & Megalia 609 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
  SEINET11989216  Arctostaphylos viscida J. T. Howell 1975-1 51085 Butte about 2 mi from Paradise on Skyway to Chico 396 Comment
  CAS-BOT-BC48255  Arctostaphylos viscida subsp. viscida Lowell Ahart 1985-2-17 4841 Butte Near Kunkle Res., about 2 miles south of Paradise. 550 Comment
  CAS-BOT-BC48297  Arctostaphylos viscida subsp. viscida John Thomas Howell 1975-6-15 51084 Butte About 2 miles from Paradise on Skyway to Chico. 396 Comment
  CHSC106887  Arctostaphylos viscida subsp. viscida Lowell Ahart 2011-2-28 17326 Butte West side of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 3/4 miles east of Honcut, about 12 miles southeast of Oroville. 47 Comment
  CAS-BOT-BC295836  Arnica dealbata A. A. Heller 1928-6-28 14658 Butte On the ridge south Butte Creek, Butte Meadows Comment
  CHSC41410  Arnica dealbata Lowell Ahart 1986-7-2 5337 Butte In a clear cut, north of the dirt road, about 1/2 mile south-west of Bald Mountain, about 4 1/2 miles north-east of Stirling City. 1615 Comment
  CAS-BOT-BC90291  Artemisia douglasiana Lowell Ahart 1981-9-15 3162 Butte One mile N of the Lost Creek Reservoir 1200 Comment
  SEINET10475950  Asarum hartwegii Mary Susan Taylor 1979-5-4 Taylor 1992 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
  CHSC33905  Asarum lemmonii M. S. Taylor 1981-5-7 3648 Butte Creek crossing 20N15 Lumpkin Ridge Rd, 1.9 mi w of Golden Trout Crossing on south fork Feather River, ca. 5 air mi e of Feather Falls. 1097 Comment
  CHSC117  Asclepias cordifolia M. Harless 1930-5-18 Butte Paradise. 548 Comment
  CHSC47973  Asclepias eriocarpa Vernon Oswald 1985-6-2 1794 Butte Upper Bidwell Park, Chico, on the edge of Parking Area H at Day Camp. 91 Comment
  CHSC80750  Asclepias eriocarpa Lowell Ahart 1998-7-18 8043 Butte West of Cherokee Road, about 50 feet southwest of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CAS-BOT-BC68878  Aspidotis californica M. S. Taylor 1980-2-17 2356 Butte Ca. 1/4 mi. SW of lower Forbestown Rd, ca. 3 mi. W of Forbestown. 396 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
  CHSC24899  Aspidotis densa P. Laherty 1976-4-4 19 Butte Scattered on the n side of Ponderosa Way, ca. 4 mi w of junc of Ponderosa Way and Hwy 32, ca. 22 mi ne of Chico. 426 Comment
  CHSC25358  Aspidotis densa Marc P. Hayes 1977-4-22 8 Butte Ca. 0.8 km sw of Pulga, 120 m n of North Fork of Feather River, along Pulga Rd., ca. 100 m from junction with Hwy 70. 495 Comment
  CHSC94270  Aspidotis densa Lowell Ahart 2006-7-16 12965 Butte Deep road cut, west of the open mudflow area, on the south side of Humboldt Road, about 1 1/2 miles (air) southwest of Butte Meadows. 1435 Comment
  HSC66087  Aspidotis densa M. S. Taylor 1980-3-8 2373 Butte 100 ft. SW of Pulga bridge over Hwy. 70 28 mi. NE of Oroville 488 Comment
  SEINET10473623  Aster exilis Mary Susan Taylor 1982-10-11 Taylor 5164 A Butte T20N R2E sw sec 33. Along the Midway near a slough just n of Nelson-Shippee Rd, ca. 0.7 mi s of Nelson. Comment
  CDA10331  Aster oregonensis T. C. Fuller 1958-7-7 1912 Butte 1 mile north of Pulga Station. 0 Comment
  CHSC69444  Aster radulinus Lowell Ahart 1997-9-6 7892 Butte About 1 1/2 miles north of Oakway, about 3 miles (air) northwest of Flea Mountain, about 3 miles (air) northeast of Sawmill Peak, about 5 miles (air) north of Concow Reservoir. 762 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
  CHSC831  Astragalus pauperculus V. Holt 1941-3-1 Butte Table Mountain near Oroville. 457 Comment
  UC1303131  Astragalus pauperculus A. A. Heller 1928-4-9 14485 Butte in a field along the Pacific Highway 9 mi n Chico; n of Chico Comment
  UC625529  Astragalus pauperculus Frank W. Gould 1938-4-23 316 Butte two mi n Chico; n of Chico 60 Comment
  CAS-BOT-BC68687  Athyrium filix-femina var. californicum Lowell Ahart 1987-6-9 5734 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  CAS-BOT-BC17450  Athysanus pusillus Lowell Ahart 1980-3-11 2036 Butte Honcut. Peter Ahart Ranch. 50 Comment
  SEINET10479106  Atriplex heterosperma Mary Susan Taylor, Lowell Ahart 1982-10-11 Taylor 5152 Butte T17N R1E n/ne sec 24. Pennington quad. Graylodge Wildlife Refuge, vicinity of check-in station, sw jct of Pennington & Rutherford Rds, ca. 12 mi sw of Gridley. 70 ft. 21 Comment
  UCD97655  Atriplex rosea L. Ahart 1982-7-10 3662 Butte in parking area around check-in station, Graylodge Wildlife Refuge, 12 miles SW of Gridley. Comment
  CHSC37086  Atriplex triangularis L. Ahart; M. S. Taylor 1982-10-11 3855 Butte On the sides of a deep ditch, w of check-in station, Graylodge Wildlife Refuge, ca. 12 mi s wof Gridley. 35 Comment
  CAS-BOT-BC146181  Avena barbata A. A. Heller 1914-3-18 11207 Butte Eight miles north of Oroville, near the western base of Table Mountain. Comment
  CAS-BOT-BC146182  Avena barbata Lowell Ahart 1989-5-10 6216 Butte Near a dirt road, near Lake Oroville, about 0.1 mile northwest of the West Branch Bridge across Lake Oroville. 289 Comment
  CHSC46431  Avena barbata Lowell Ahart 1989-5-23 6233 Butte 1/2 mile east of Dunstone Drive, about 1/2 mile north of Bangor Park Road, west of Bangor. 76 Comment
  CHSC57163  Avena barbata R. L. Ondricek-Fallscheer 1982-5-26 138 Butte At southwest end of Flatiron Ridge, ca 3 1/2 mi west-southwest of Paradise. 192 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
  JEPS117626  Avena barbata Lowell Ahart 2010-5-23 16727 Butte On both sides of Guardians Trail, about 200 yards southwest of Ten Mile House Road, about 1/4 mile (air) west of Highway 32, about 9 miles (air) northeast of Chico 413 Comment
  UC203847  Avena barbata A. A. Heller 1914-3-18 11207 Butte along small stream 8 mi n Oroville (near w base of Table Mt.) Comment
  SEINET263348  Avena fatua Lowell Ahart 1989-5-10 6218 Butte Ca 1/12 miles NW of the West Branch Bridge across Lake Oroville; near the end of the dirt road that leads to Lake Orovil 271 Comment
  CHSC44628  Azolla filiculoides Vernon Oswald 1987-5-20 2913 Butte Butte Creek Canyon Ecological Reserve on the s side of Butte Creek, ne of the Skyway. 80 Comment
  CAS-BOT-BC66215  Azolla filiculoides Mrs. R. M. Austin 1894-6-1 s.n. Butte Cold Springs, Willow Creek Comment
  CAS-BOT-BC66256  Azolla mexicana Lowell Ahart 1975-1-9 s.n. Butte Near North Honcut Creek, 2 miles N & 3 miles E of Honcut 60 Comment
  CHSC34140  Baccharis douglasii Lowell Ahart 1981-9-27 3215 Butte Ca. 3/4 mi NE of jct of Lower Wyandotte Rd and Upper Palermo Rd, ca. 1/8 mi S of the ORO Bangor Hwy, ca. 5 mi NE of Palermo. 100 Comment
  CHSC63694  Baccharis pilularis Lowell Ahart 1994-10-9 7556 Butte On the north side of Forbestown Road, about 200 yards east of the intersection of Black Bart Road and Forbestown Road, about 3 (air) miles west of Forbestown. 609 Comment
  CHSC89489  Baccharis pilularis R. D. Fischer 2004-8-22 441 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located at bottom of 10 Mile House Road near gated end of park property. At edge of large mdw. 217 Comment
  CAS-BOT-BC98187  Baccharis salicifolia A. A. Heller 1914-3-28 11241 Butte Dry Creek, 12 miles southeast of Chico Comment
  CHSC48288  Bassia hyssopifolia Vernon Oswald 1983-6-28 780 Butte Graylodge Waterfowl Management Area near Parking Lot 16. Comment
  CHSC33725  Berberis aquifolium var. dictyota M. S. Taylor 1981-4-10 3525 Butte S side of private rd, ca. 1/8 mi e of its jct with Ponderosa Way, ca. 4 mi n of Jarbo Gap on Hwy 70. 914 Comment
  UC1562366  Bergia texana Lowell Ahart 1990-8-15 6578 Butte Near McCabe Creek, below the high water line of Lake Oroville, about 1/2 mile south-west of the Enterprise Bridge across Lake Oroville. Comment
  CHSC30286  Bidens frondosa M. S. Taylor 1978-9-8 1877 Butte Along flood control slough, ca. 4 mi N of Chico, on Hwy 99. 60 Comment
  CHSC31576  Bidens frondosa Lowell Ahart 1976-6-27 1145 Butte Along the edge of North Honcut Creek, near Honcut. 45 Comment
  CAS-BOT-BC412957  Bistorta bistortoides E. B. Copeland 1929-7-20 357 Butte Jonesville 1550 Comment
  CHSC44047  Bistorta bistortoides L. P. Janeway 1987-6-27 2349 Butte Open alder-fringed mdw just east of Keyser Cr, 4.3 mi north of Ramsey Bar along the Concow Rd. 1478 Comment
  NY31003  Blennosperma californicum C. B. Wolf 1937-3-29 8333 Butte Sacramento Valley, 0.5 mile southeast of Butte Creek on Chico-Oroville road 57.9 Comment
  CHSC46283  Boechera arcuata Vernon Oswald 1989-5-25 3785 Butte Railroad between Pulga and Mayaro. On the river side of the RR between Dogwood and Camp Creeks. 438 Comment
  CHSC109135  Boechera breweri subsp. shastaensis Lowell Ahart 2012-2-22 17744 Butte On the north side of a very large basalt outcrop, about 400 yards east of Big Chico Creek, about 100 yards west of South Rim Trail, about 5/8 mile west of Highway 32, about 8 3/4 miles (air) northeast of Chico. 254 Comment
  RSA166348  Boisduvalia cleistogama D. M. Moore 1960-6-1 90 Butte 1.1 mile W of U.S. 40A on road to Honcut Comment
  SEINET10973129  Boisduvalia glabella Mary Susan Taylor 1980-6-29 Taylor 2992 Butte T23N R1E nw sec 20 Richardson Spring quad; ca. 1 mi E of Meridian Rd, ca. 4 mi N of Chico; Valley Grassland. 70 Comment
  CAS-BOT-BC28204  Bolboschoenus glaucus Lowell Ahart 1982-7-10 3765 Butte Ca 1/4 mi SE of the Gray Lodge Headquarters, ca 13 mi SW of Gridley. 35 Comment
  RSA0101689  Botrychium simplex var. simplex E. B. Copeland 1931-6-9 601 Butte Jonesville 1500 Comment
  JEPS120578  Brachypodium distachyon L. P. Janeway 2012-6-2 10840 Butte Northern High Sierra Nevada. Plumas National Forest; eastern slope of Bloomer Hill, 1.0 air km east of the top. Comment
  SBBG128788  Brachypodium distachyon L. P. Janeway 2012-5-2 10811 Butte upper Bidwell Park, Chico, SE facing slope +/- overlooking Bear Hole on Big Chico Crk, between Middle Trail and Upper Trail 166 Comment
  JEPS102338  Brassica napus Lowell Ahart 2001-5-10 8739 Butte 4 air miles SW of Gridley (on sides of dirt rd E of the large pump, on S side of Evans-Reimer Rd, 1 mi E of Pennington Rd, Gray Lodge Waterfowl Management Area) 22 Comment
  CHSC38022  Brassica nigra R. E. Preston 1982-4-4 218 Butte On bank of levee; on s side of Rutherford Rd, ca. 0.7 mi w of Pennington Rd, Gray Lodge State Wildlife Area. 21 Comment
  CHSC45643  Brickellia greenei Vernon H. Oswald 1983-8-24 1019 Butte Humboldt Rd. between Lomo and Butte Meadows, 3.3 mi NE of its jct. with Calif. Hwy 32. 1402 Comment
  CAS-BOT-BC145530  Briza minor A. A. Heller 1913-5-25 10762 Butte Near Pents. 152 Comment
  CAS-BOT-BC145541  Briza minor Lowell Ahart 1980-5-4 2183 Butte Thermalito. Comment
  SEINET10514411  Briza minor Lowell Ahart 1971-4-13 Ahart 72 Butte Ca. 1/2 typical size. Among grass and on disturbed areas. Peter Ahart Ranch, Honcut. Valley Grassland. 46 Comment
  CHSC2069  Brodiaea californica N. Maxwell 1929-5-9 Butte Rock Creek, Shasta rd. 56 Comment
  CHSC38763  Brodiaea californica var. californica Vernon Oswald 1983-6-2 610 Butte Upper Bidwell Park, Chico, along Yahi Trail e of Brown's Hole. 207 Comment
  UCD147861  Brodiaea coronaria Robert E. Preston 2005-6-13 2352 Butte 3 mi ESE of Richvale, in field along W side of Hwy 99. 34 Comment
  SEINET10872217  Brodiaea elegans Lowell Ahart 1983-6-6 Ahart 4028 Butte Peter Ahart Ranch, ca. 2.5 mi ne of Honcut. Valley Grassland; 50 m. 50 Comment
  HSC31885  Brodiaea minor R. A. Vanbianchi 1974-4-20 217 Butte 300 yds. S of intersection of Pentz and Clark Rds. Comment
  SEINET8466117 Image available Brodiaea minor Lincoln Coonstance 1941-5-28 2825 Butte Three miles southwest of Paradise, Sierra Nevada foothills Comment
  UCD77195  Brodiaea nana Robert E. Preston 2004-4-21 2217 Butte Ca. 4.3 mi NW of Oroville. 56 Comment
  CHSC39667  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. Section 6. 425 Comment
  RSA325953  Brodiaea sierrae Lowell Ahart 1983-6-15 4053 Butte Peter Ahart Ranch, ca 2.5 mi NE of Honcut. Along the edges of N Honcut Creek. 50 Comment
  RSA712796  Brodiaea sierrae L. P. Janeway 2005-6-26 8428 Butte South-facing slope 0.4 km. south of top of Batchelor Point, 0.6 km. east of top of Rocky Ridge and Rim Road (Ponderosa Way). 945 Comment
  CAS-BOT-BC486486  Brodiaea sierrae Lowell Ahart 1983-6-15 4053 Butte Peter Ahart Ranch, Honcut, California. Near large rocks on flood plains along the edges of North Honcut Creek, about 1 1/2 miles north and 3 miles east of Honcut. 50 Comment
  CHSC35753  Bromus carinatus R. E. Preston 1982-6-2 294 Butte On the bank of Miocene Canal, ca. 1/4 mi s of Lime Saddle Powerhouse, ca. 4.5 mi se of Paradise. 292 Comment
  CHSC87811  Bromus carinatus var. carinatus Lowell Ahart 2004-6-2 10989 Butte Near a small meadow, on the east side of a logging road, on the north side of Forbestown Road, about 200 yards east of the intersection of Black Bart Road and Forbestown Road, about 3 1/4 miles (air) southwest of Forbestown. 752 Comment
  CHSC34209  Bromus carinatus var. marginatus J. D. Jokerst 1981-8-1 1452 Butte N face of Humboldt Peak ca 200 feet NE of summit. Extreme N corner of Butte county. 2133 Comment
  JEPS115992  Bromus catharticus Lowell Ahart 2009-5-8 15666 Butte On the south side of the gravel road, about 10 yards east of Cedar Grove Parking Area in Lower Bidwell Park, Chico 67 Comment
  UCD169395  Bromus diandrus Lowell Ahart 2005-4-14 11707 Butte North of Spruce Street, Gridley; south of the railroad bridge, east of the railroad tracks. 28 Comment
  RSA725192  Bromus hordeaceus L. P. Janeway 2006-4-30 8567 Butte Cascade range Foothills. East edge of city of Chico; northwest side of Humbolt Road 2.4 km northeast of Bruce Road. 149 Comment
  SEINET10835844  Bromus hordeaceus P. Young 1972-5-16 Moyer 186 Butte S bank Chico Crk. between Warner St. and New Dorm Bridge. 61 Comment
  JEPS106269  Bromus inermis subsp. inermis Lowell Ahart 2004-7-23 11307 Butte On the west side of Philbrook Reservoir Road, about 20 yards south of the bridge across the West Branch of the Feather River, about 1 1/2 miles (air) northwest of Philbrook Reservoir Dam, about 3 3/4 miles (air) southeast of Butte Meadows 1507 Comment
  CHSC44452  Bromus japonicus Lowell Ahart 1988-5-30 6031 Butte About 1/12 mile north of the bridge across the North Fork of the Feather River, along Poe Power House Road, about 2 miles south-east of Jarbo Gap. 335 Comment
  CHSC101463  Bromus laevipes L. P. Janeway; Sarah Starkey 2009-7-13 9856 Butte Northern High Sierra Nevada. Upper end of Rocky Ridge, southwest side of Rim Road (Ponderosa Way) 0.3 km southeast of Concow Road near the quarry. 978 Comment
  CHSC37091  Bromus laevipes L. Ahart 1982-9-13 3806 Butte Along edges of wash that flows into Pinkard Creek, ca. 1/8 mi n of Lost Creek Reservoir Dam, ca. 2 and 1/8 mi nw of Strawberry Valley. 1100 Comment
  UC816304  Bromus orcuttianus A. A. Heller 1917-7-26 12819 Butte Butte Meadows 1402 Comment
  CHSC49519  Bromus polyanthus Vernon Oswald 1988-6-2 3351 Butte Humboldt Rd. 0.7 mi ne of Lomo. Along this section of road. 1249 Comment
  CHSC38798  Bromus racemosus Vernon Oswald 1983-4-9 314 Butte Upper Bidwell Park, Chico, on the north rim at the level of Horseshoe Lake. 152 Comment
  SEINET11683502  Bromus rubens Unknown 1969-1 268 Butte just E of trail to Salmon Hole in Upper Bidwell Park (E of Chico) 61 Comment
  CHSC90968  Bromus tectorum L. P. Janeway; M. Brown, S. Mackey Hillaire, J. Tuitele-Lewis 2005-5-4 8379 Butte Northern High Sierra Nevada. Plumas National Forest; just below Road 23N02 0.5 km north of County Road 66553; near top of a minor drainage into Camp Creek but 0.7 km east of Dogwood Creek. 1067 Comment
  SD131006  Bulbostylis capillaris Lowell Ahart 1980-7-20 2472 Butte At Big Bald Rock. 1100 Comment
  CHSC61367  Calamagrostis canadensis Lowell Ahart 1993-7-31 7138 Butte On the edge of a bog, on the north side of the dirt road to Big Kimshew Creek, about 1 1/2 miles south-east of Bald Mountain, north-east of Stirling City. 1493 Comment
  SBBG17207  Calandrinia menziesii M. Vincent 1961-3-29 28 Butte Bidwell Park, Chico Comment
  CHSC113110  Callitriche palustris Lowell Ahart 2013-10-26 19215 Butte In shallow water of Philbrook Creek, below the high water line (strand) of Philbrook Reservoir. 1681 Comment
  CHSC45837  Calocedrus decurrens Lowell Ahart 1973-1-14 147 Butte Along the edge of the dirt road to Forbestown Reservoir, about 3 miles northeast of Forbestown. 762 Comment
  CHSC29106  Calochortus albus M. S. Taylor; J. D. Jokerst 1980-4-27 2567 Butte On s side of Humbug Rd, ca. 1/2 mi upstream from Honey Run Covered Bridge, ca. 7 mi e of Chico. 137 Comment
  CAS-BOT-BC487510  Calochortus albus John Thomas Howell; Gordon H. True 1967-5-9 42230 Butte Southeast side of North Fork of Feather River at Pulga Bridge Comment
  CAS-BOT-BC487814  Calochortus coeruleus A. A. Heller 1928-6-20 s.n. Butte In the yellow forest at Butte Meadows Comment
  CHSC76968  Calochortus luteus Ida Ryan 1893-5-1 Butte Humboldt Road. Comment
  CHSC3522  Calochortus monophyllus John Francis 1966-4-23 125 Butte Table Mt. Comment
  JEPS14191  Calochortus monophyllus Rimo Bacigalupi with G. T. Robbins and Fran Chisaki 1956-4-19 5605 Butte 0.7 mi below Oroville-Concow road junction with Yankee Hill road (along Oroville-Concow road) 563 Comment
  UC311628  Calochortus monophyllus Mrs. B. O. Clark 1915-4-12 213 Butte near Paradise (in the lower Sierra Nevada); Sierra Nevada 600 Comment
  CAS-BOT-BC492598  Calochortus monophyllus Lowell Ahart 1980-5-4 2194 Butte Near Hurleton. Comment
  UC600461  Calochortus nudus H. F. Copeland 1931-6-9 1513 Butte Jonesville 1524 Comment
  HSC38032  Calochortus tolmiei Thomas W. Nelson, Jane P. Nelson 1976-5-10 2483 Butte Just E of Magalia Comment
  UCD129685  Calycadenia fremontii Gerald D. Carr 1971-6-15 563 Butte 0.4 mile west of eastern boundary of Upper Bidwell Park, southeast of Chico. Comment
  JEPS120843  Calycadenia multiglandulosa Lowell Ahart 2013-7-1 18817 Butte About 150 yards E of the intersection of Forbestown Road and Black Bart Road, about 3.25 air miles SW of Forbestown. Comment
  UCD169276  Calycadenia multiglandulosa Lowell Ahart 2013-7-1 18817 Butte About 150 yards east of the intersection of Forbestown Road and Black Bart Road, about 3 1/4 miles (air) southwest of Forbestown. 737 Comment
  CAS-BOT-BC106095  Calycadenia oppositifolia A. A. Heller 1938-5-22 15108 Butte Near the Chico airport Comment
  POM253182  Calycadenia oppositifolia A. A. Heller 1938-5-22 s.n. Butte Near the Chico Airport Comment
  POM298231  Calycadenia oppositifolia D. D. Keck 1933-5-31 2411 Butte 4.3 miles N of Chico on Richardson Springs Rd. Comment
  UC1971670  Calycadenia oppositifolia 1977-7-6 2037 Butte 2.1 mi SE of the Quincy - Oroville/Olive Hwy (162), on Forbestown Road (at milepost 59.35) 438 Comment
  SEINET10473676  Calycadenia oppositifolia Mary Susan Taylor 1979-6-12 Taylor 2294 Butte Magalia serpentine area down to Feather River. With J.D. Jokerst & L. Ahart. 671 Comment
  CHSC112038  Calycadenia spicata Lowell Ahart 2012-8-22 18420 Butte On dry gravelly soil, old road to pond, on the south side of the paved road to the shooting range in the clay pit, about 1/4 mile east of Larkin Road, about a mile south of the Oroville Airport. 38 Comment
  JEPS104278  Calycadenia spicata Lowell Ahart 2003-6-20 10296 Butte In pasture fields, Peter Ahart Ranch, ca 2 mi n and 1 3/8 mi e of Honcut, ca 12 mi se of Oroville. 42 Comment
  CHSC26701  Calycadenia truncata M. S. Taylor; M. Hayes 1977-8-16 1453 Butte On N side of Clear Creek next to the newly built bridge (population partially destroyed by the construction), Butte College Campus, ca. 15 mi S of Chico. 60 Comment
  SEINET10475216  Calycadenia truncata Mary Susan Taylor 1979-6-12 Taylor 2296 Butte Magalia serpentine area down to Feather River. With J.D. Jokerst & L. Ahart. 671 Comment
  POM51575  Calycadenia truncata subsp. truncata Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  CAS-BOT-BC275386  Calycadenia truncata var. truncata John Thomas Howell 1951-6-26 27506 Butte Feather River Canyon 198 Comment
  CAS-BOT-BC90927  Calycanthus occidentalis John Thomas Howell 1961-9-22 36752 Butte Sierra Nevada. Feather River Highway 3 miles from Oroville. 106 Comment
  UC725412  Calycanthus occidentalis A. A. Heller 1938-5-28 15122 Butte 25 mi from Oroville (on the Feather River Highway) Comment
  UC1136670  Calyptridium monospermum P. L. Johannsen 1936-7-21 954 Butte 1/2 mi e of Chaparral House (Lassen National Forest); Lassen National Forest 1584 Comment
  UC129117  Calyptridium monospermum Miss Kate Conger 1907-1 Butte Brush Creek Comment
  UC426906  Calyptridium umbellatum E. B. Copeland 1930-7-12 413 A Butte above Jonesville 2000 Comment
  JEPS103331  Calystegia occidentalis subsp. occidentalis Lowell Ahart 2002-6-21 9734 Butte On a mountainside, Watson Ridge, ca 2 miles (air) NE of Bald Rock Dome, ca 5 miles (air) N of Feather Falls (the town). 1086 Comment
  UC478483  Calystegia occidentalis var. tomentella E. B. Copeland 1931-7-4 674 Butte Jonesville 1550 Comment
  UC600773  Calystegia occidentalis var. tomentella H. F. Copeland 1930-7-18 Butte Jonesville Comment
  POM219372  Camassia leichtlinii subsp. suksdorfii H. F. Copeland 1931-6-9 1525 Butte Jonesville. 1524 Comment
  SEINET10840336  Campanula prenanthoides Taylor 1977-6-26 Taylor 1370 Butte On south side of Ponderosa Way, about 3 miles east of Forest Ranch 732 Comment
  CHSC10793  Capsella bursa-pastoris Lowell Ahart 1972-5-24 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC11055  Capsella bursa-pastoris Lowell Ahart 1970-2-24 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC3623  Capsella bursa-pastoris John Francis 1966-2-21 28 Butte Orchard across road from Durham Cemetery. Comment
  CHSC19924  Cardamine californica M. S. Taylor 1975-3-3 402 Butte Dam area, ca. 1/4 mi n of Richardson Springs camp, ca. 8 mi n of Chico. 91 Comment
  CHSC3641  Cardamine californica Alice L. Stoll 1966-2-28 36 Butte 9.2 miles N.E. of Chico, Upper Bidwell Park. Comment
  CHSC4049  Cardamine californica J. W. Cherry 1967-3-27 Butte Ca. 3 ft. from edge of Big Chico Creek, 100 yds. e of end of Bidwell Park road. 176 Comment
  CAS-BOT-BC37874  Cardamine oligosperma Peter H. Raven 1954-4-17 6614 Butte Along Feather River, Oroville. Comment
  CHSC35007  Cardamine oligosperma R. E. Preston 1982-2-25 179 Butte 20 ft s of Humboldt Rd, ca. 1/4 mi e of its jct with Bruce Rd; ca. 3 mi e of downtown Chico. 87 Comment
  CHSC88857  Cardamine oligosperma Christine Hantelman 2000-2-18 5 Butte Along Meridian road 1/4 mile north of Hwy 99 turnoff. In ditch on north side of road. 57 Comment
  JEPS116041  Cardamine oligosperma Lowell Ahart, John Dittes 2009-3-20 15505 Butte Open area along the Guardian Rock Trail, about 150 yards southwest of the Ten Mile House Road Trail, about 300 yards west of Highway 32, west of the intersection of Highway 32 and Ten Mile House Road, Upper Bidwell Park, about 10 miles northeast of Chico 407 Comment
  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
  CHSC34524  Cardamine pachystigma R. E. Preston 1981-4-11 52 Butte Roadcut, on s side of Forbestown Reservoir, ca. 400 m e of diversion dam, ca. 5.8 km ne of Forbestown. 580 Comment
  JEPS120951  Carduus pycnocephalus subsp. pycnocephalus Lowell Ahart 2013-4-20 18548 Butte Wilson Creek, about 40 yards SW of the oak trees, about 1/2 mile N of the barn, about 3/4 mile N of the Honcut Cemetery, about 3.75 air miles NE of Honcut. Comment
  JEPS117181  Carex Lowell Ahart 2010-4-23 16579 Butte Lawn of home #1082, near the middle of and north side of E7th Street, between Sycamore Street and Linden Street, Chico 63 Comment
  SJSU15296  Carex Lisa Morton 2002-3-31 18 Butte Upper Bidwell Park along Middle Trail 50 Comment
  CAS-BOT-BC18210  Carex Lowell Ahart 1988-4-15 5960 Butte In the lawn, Peter Ahart Ranch, about 1.5 mile north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC52278  Carex abrupta L. P. Janeway; R. A. Schlising 1988-7-22 3068 Butte Upper canyon of Philbrook Cr, 0.7 mi W of the pass. 1889 Comment
  JEPS121932  Carex abrupta Lowell Ahart 2014-7-10 19618 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  CAS-BOT-BC17812  Carex amplifolia Lowell Ahart 1983-9-17 4439 Butte About 0.25 mile southeast of Stirling City. 1100 Comment
  CHSC11937  Carex angustata E. B. Copeland 1930-8-10 609 Butte Jonesville. 1500 Comment
  CHSC53715  Carex angustata L. P. Janeway; R. A. Schlising, B. Castro 1988-7-23 3089 Butte Scotts John Cr 2.3 mi N of the Butte Cr road. 1889 Comment
  RSA700399  Carex angustata L. Ahart 2004-8-2 11327 Butte About 200 yards east of Keyser Creek, on the north side of the dirt county road, about 0.75 mile (air) NE of Oak Point, about 0.5 mile (air) west of Big Kimshew Creek, about 1.75 miles SE of Bald Mountain. 1453 Comment
  UC1108031  Carex angustata H. F. Copeland 1932-8-12 Butte Butte Creek Meadow Comment
  CAS-BOT-BC17904  Carex angustata J. D. Jokerst 1980-10-7 1649 Butte Ca. 50 feet west of the Skyway 1.1 miles south of Innskip. 1432 Comment
  CAS-BOT-BC19103  Carex aurea E. B. Copeland 1930-6-23 608 Butte Jonesville. 1500 Comment
  CHSC38071  Carex aurea R. E. Preston 1982-6-25 319 Butte Ca. 1.2 mi S of Inskip. 1420 Comment
  CHSC45046  Carex aurea Vernon Oswald 1983-6-22 752 Butte Near Scout Rd. 1.2 mi n of Butte Meadows. 1264 Comment
  POM183139  Carex aurea H. F. Copeland 1929-6-11 1243 Butte Jonesville. 1524 Comment
  CAS-BOT-BC19201  Carex barbarae Lowell Ahart 1977-5-20 s.n. Butte Sierra Nevada. Honcut. Peter Ahart Ranch. Along North Honcut Creek. 50 Comment
  CHSC43914  Carex barbarae L. P. Janeway 1986-9-20 1882 Butte West side of Comanche Cr and north side of Ord Ferry Rd. 33 Comment
  CAS-BOT-BC19413  Carex bolanderi Lewis S. Rose 1963-6-5 63140 Butte North Fork of Feather River. Arch Rock Tunnel. 487 Comment
  CHSC102951  Carex brainerdii 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
  JEPS108149  Carex brainerdii L. P. Janeway 2005-5-29 8406 Butte Northern High Sierra Nevada. Top of south end of Granite Ridge (between Rock Creek and Camp Creek), about 2.3 km south of Kimshew Point. On southeast-facing side of ridge top 1317 Comment
  CAS-BOT-BC19601  Carex brainerdii L. P. Janeway 1988-6-14 2789 Butte East side of canyon of Cedar Creek 4.3 miles east of Lomo along the Cedar Loop. 1280 Comment
  JEPS116653  Carex crawei L. P. Janeway 2009-5-25 9796 Butte Campus of California State University, Chico Chico (between Merriam Library, the new student services building,and Warner Ave.); Sacramento Valley 59 Comment
  CHSC44116  Carex cusickii L. P. Janeway 1988-7-29 3119 Butte Mdw at jct of Colby, Willow and Butte Cks and Humboldt Rd. 1485 Comment
  CHSC44836  Carex cusickii L. P. Janeway; R. A. Schlising 1988-8-2 3153 Butte Ca 1 1/2 air mi NW of Butte Mdws; along Cascade Cr ca 1/4 mi upstream of the Soda Springs USFS campground. 1143 Comment
  CHSC115743  Carex cyrtostachya P. F. Zika; B. Wilson, L. Ahart, L. Janeway 2011-8-5 25712 Butte Northern Sierra Nevada Highlands. 0.5 air miles NE of Litte Bald Rock, NE of and below Bean Creek Road 0.6 road miles from Bald Rock Road. 1005 Comment
  CAS-BOT-BC34949  Carex densa Lowell Ahart 1980-5-17 2309 Butte 0.5 mile SE of Hurleton. 600 Comment
  CHSC35709  Carex densa J. D. Jokerst 1982-5-19 1581 Butte Artificially watered planters in the southern most parking lot of the Butte College Campus. Comment
  CAS-BOT-BC34956  Carex densa L. P. Janeway 1988-4-10 2616 Butte Below Centerville Road (Humbug Road) 1.0 mile NE of Honey Run Road. 115 Comment
  CAS-BOT-BC422333  Carex divulsa subsp. divulsa P. F. Zika; L. Janeway 2012-5-17 25873 Butte Near Camelia Way bridge, N bank of Big Chico Creek, Chico, Sacramento Valley (ScV), Ahart's station 60 Comment
  CHSC59003  Carex echinata subsp. echinata Lowell Ahart 1992-7-26 6856 Butte In a small man made pond, about 1/2 mile north of the Carr Mine, about 2 (air) miles south of Snow Mountain. 1798 Comment
  JEPS113680  Carex echinata subsp. echinata Lowell Ahart 2007-6-12 14078 Butte In shallow water (small spring), about 70 yards south of Bean Creek Road, about 1/4 mile (air) southeast of Little Bald Rock, about 15 miles (air) northeast of Oroville 974 Comment
  CAS-BOT-BC21241  Carex fracta H. F. Copeland 1930-7-21 1367 Butte Jonesville. 1524 Comment
  CHSC43116  Carex fracta L. P. Janeway; Patty Costello 1987-9-5 2576 Butte NW side of Big Chico Cr below the rd to Soda Spr campground and near hwy 32. 1127 Comment
  JEPS116059  Carex gracilior Lowell Ahart 2009-6-18 15911 Butte On the banks of a small wash, about 60 yards west of the dredger piles along North Honcut Creek, about 2 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles southeast of Oroville 59 Comment
  UC1748286  Carex heteroneura L. P. Janeway 1999-7-17 6508 Butte Along Scotts John Creek 0.2 mi N of the road that connects Humboldt Road and Humbug Road. 1749 Comment
  CHSC42814  Carex hirtissima L. P. Janeway 1987-6-13 2214 Butte Mdw just NE of Jct of Concow Cr and the rd to Flea Mtn. 1188 Comment
  RSA0116106  Carex hirtissima Lowell A. Ahart 2014-7-13 19642 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  SEINET7561551 Image available Carex hirtissima L. P. Janeway 2003-6-8 7816 Butte Pulga 7.5' Quad. High Cascade Range. Flea Valley, meadow at head on Concow Creek. 1116 Comment
  CAS-BOT-BC28192  Carex hirtissima L. P. Janeway 1989-5-17 3258 Butte Large meadow at upper jct Black Bard Rd. and Forbestwon Rd. 746 Comment
  SEINET7561557 Image available Carex hirtissima Lewis S. Rose 1937-6-10 37375 Butte Forbestown. 838 Comment
  SEINET4286137 Image available Carex hoodii L. Janeway, Gog, L 2008-1 3194 B Butte Just east of Philbrook Resevoir. Comment
  CHSC105815  Carex integra Lowell Ahart 2010-9-21 17218 Butte Open meadow like area, near a poor camp, 30 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1917 Comment
  CAS-BOT-BC7782  Carex laeviculmis Clarence Roy Quick 1963-7-16 63 50 b Butte Feather River Canyon. Section Corner Meadow, east of Pulga. 1463 Comment
  CHSC76846  Carex laeviculmis L. P. Janeway; B. Castro, Linnea Hanson, Hal Durio. 1997-6-13 5138 Butte About 1.8 mi northeast of Brush Creek, about 1.0 mi east-southeast of Mountain House; along an unnamed tributary of Mountain House Creek at Road 22N54. 1112 Comment
  CAS-BOT-BC31119  Carex lemmonii E. B. Copeland 1929-7-5 610 Butte Jonesville. 1500 Comment
  CHSC113960  Carex lemmonii Lowell Ahart 2014-7-16 19676 Butte North part of a large wet meadow (some bog), about 50 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  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
  JEPS121959  Carex limosa Lowell Ahart 2014-7-7 19583 Butte In the bog, Coon Hollow, about 2 miles (air) north of Philbrook Reservoir. Comment
  CHSC83288  Carex microptera L. P. Janeway; B. Castro 2002-7-7 7617 Butte High Cascade Range. Along logging spur road, 0.5 km east of the County Road (Forest Service Road 25N02); 3.4 km northeast of Bald Mountain Lookout and 1.6 km southwest of Jones Meadow. 1829 Comment
  CAS-BOT-BC32153  Carex multicaulis Lowell Ahart 1987-5-12 5642 Butte South of Lumpkin Ridge Road, 1.5 mi E of Camp 18, ca 8 mi NE of Feather Falls. 1280 Comment
  CHSC43876  Carex multicaulis L. P. Janeway; C. A. Janeway 1986-8-31 1802 Butte South side of hwy 32, 19 mi E of hwy 99; near Platte Mtn Lookout CDF fire station. 1066 Comment
  CHSC9145  Carex multicaulis R. J. Swift 1970-4-21 85 Butte Alongside of Skyway ca. 1.5 miles N.E. of Magalia. 670 Comment
  CAS-BOT-BC119743  Carex nebrascensis L. P. Janeway 1987-7-4 2411 Butte Along West Branch Feather River at bridge 1.8 mi from Inskip. 1341 Comment
  CAS-BOT-BC119565  Carex nudata Lowell Ahart 1987-5-6 5543 Butte Along the N Fork of the Feather River, near the Poe Power House, 271 Comment
  JEPS117597  Carex pachystachya var. pachystachya Lowell Ahart 2010-9-28 17271 A Butte On damp black soil, about 20 yards west of Big Kimshew Creek, in shade, others out in the open dry 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 Philbrood Reserv 1886 Comment
  UCD140771  Carex praegracilis R. E. Preston 1982-4-4 215 Butte Gray Lodge wildlife management area. 18 Comment
  CHSC47060  Carex retroflexa var. texensis L. P. Janeway 1989-4-10 3215 Butte South side of Chico; along Salem Ave about W 14th St. 59 Comment
  CAS-BOT-BC117984  Carex rossii L. P. Janeway; Robert A. Schlising; B. Castro 1988-7-23 3088 Butte Jonesville quad. Scotts John Cr 2.3 mi N of the Butte Cr road. 1889 Comment
  CHSC61511  Carex stipata var. stipata Lowell Ahart 1993-7-6 7051 Butte In a small meadow, on the north side of the dirt road, about 1/4 mile west of the Lost Creek Reservoir. 1036 Comment
  CHSC33773  Carex straminiformis J. D. Jokerst; J. Donovan 1981-8-1 1448 Butte Ca 50 meters N of the summit of Humboldt Peak in area of rock outcrops, northern-most portion of Butte County. Comment
  CAS-BOT-BC116739  Carex subfusca A. A. Heller 1915-6-25 12018 Butte Chico Meadows in the Sierra Nevada. 1219 Comment
  CHSC52878  Carex subfusca L. P. Janeway; R. A. Schlising, B. Castro 1988-7-30 3143 Butte Southwest facing slope above Coon Hollow; near dirt road 1.2 mi W of its high point near the county line. 1950 Comment
  CHSC83266  Carex subfusca L. P. Janeway; B. Castro 2002-7-7 7621 Butte High Cascade Range. Along the County Road above the Discovery Creek and Last Chance Creek; 1.3 km north of Bald Mountain Lookout. 1609 Comment
  RSA550452  Carex subfusca R. Tallent 1987-8-18 956 Butte Lassen National Forest; Along Feather River N of Stirling City. 1037 Comment
  UC406290  Carex subfusca E. B. Copeland 1929-7-20 51 Butte Jones Creek Jonesville 1500 Comment
  SEINET10750075  Carex subfusca Lawrence P. Janeway 1987-7-4 Janeway 2425 Butte T25N, R4E, Kimshew Point quad NE1/4 of sec. 36. Seepy area along road to Jones Meadow 9.6 mi from Inskip. NW-facing slopes above Last Chance Cr. 1676 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
  CHSC112101  Carex texensis Lowell Ahart 2012-6-14 18182 Butte At the entrance of Lower Bidwell Park, east of Woodland Avenue, Chico. 61 Comment
  CAS-BOT-BC115306  Carex utriculata A. A. Heller 1914-6-22 11494 Butte Chico Meadows. 1219 Comment
  CHSC45066  Carex utriculata Vernon Oswald 1987-5-21 2918 Butte Humbug Rd. between the Skyway and the road to Philbrook Reservoir, near Memorial Spring just ne of Chaparral Guard Station. 1554 Comment
  CHSC65602  Carex vesicaria L. P. Janeway 1995-8-5 4889 Butte Vernal pool on north side of Humbug Summit Road about 1.2 mi northeast of Snag Lake. 1801 Comment
  CAS-BOT-BC114981  Carex vulpinoidea J. Sigg 1987-6-5 2954 Butte E side of the Sacramento River just N of Golden State Island. 33 Comment
  CHSC47141  Carex xerophila B. Castro; Gail Kuenster 1989-4-29 307 Butte Ca 0.1 mi N of jct Coutolenc Rd and Skyway; on flat ledge between Coutolenc Rd and old SPRR bed. 707 Comment
  CHSC75551  Carex xerophila G. F. Hrusa; T. D. Wilfred 1997-5-8 13761 Butte Sierra Nevada. Near summit of slope facing SSE above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. [Lat./Long. on label is '39 51 N, 121 34 W']. 750 Comment
  CHSC23648  Castilleja M. S. Taylor 1976-4-4 1064 Butte On s side of Ponderosa Way, ca. 4 mi w of junc of Ponderosa Way and Hwy 32, ca. 23 mi ne of Chico. 457 Comment
  CHSC33126  Castilleja affinis J. D. Jokerst; R. A. Schlising 1981-4-16 1298 Butte S side of Olive Highway 0.3 mi SW of it's junction with Forbestown Road. Comment
  CAS-BOT-BC249589  Castilleja applegatei subsp. pinetorum Clarence R. Quick 1964-7-9 64 -58 Butte North of Jarbo Gap Comment
  CHSC43191  Castilleja applegatei subsp. pinetorum Richard J. Slama 1981-4-20 8 Butte On s rim of canyon. Ca. 7 mi se of Chico, ca. 5 mi. e of hwy. 99 on Skyway rd. 243 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
  CAS-BOT-BC255458  Castilleja applegatei var. pinetorum F. W. Pennell; A. A. Heller 1940-6-5 25692 Butte Along Feather River above Pulga, Route 24 487 Comment
  CAS-BOT-BC255461  Castilleja applegatei var. pinetorum A. A. Heller 1914-8-6 11646 Butte Chico Meadows 1219 Comment
  CAS-BOT-BC255463  Castilleja applegatei var. pinetorum Mrs. J. H. Morrison 1932-5-1 s.n. Butte Durham 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
  CHSC111352  Castilleja attenuata Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18012 A Butte On dry excellent soil, on the north side of Big Chico Creek, south of the path, south of the paved park road, south of the old walnut orchard, south of Vallombrosa Avenue, about 1/4 mile southwest of Peterson Drive, Lower Bidwell Park, Chico. 76 Comment
  CHSC115343  Castilleja attenuata Lowell Ahart 2015-4-11 20029 Butte About 3/4 mile northeast of the Honcut Cemetery, about 4 1/2 miles (air) northeast of Honcut, about 13 miles (air) southeast of Oroville. 71 Comment
  CHSC43168  Castilleja attenuata B. E. Olson 1975-5-5 17 Butte Ca. 300 m n of Helltown Bridge, ca. 200 m w of Butte Creek, 1.6 km n of Centerville, 22.5 km ene of Chico. 190 Comment
  UC1609345  Castilleja attenuata Vernon H. Oswald and Lowell Ahart 1993-4-21 5291 Butte ca 2.25 mi nw (air) Magalia (Middle Butte Creek Trail, on the w side of the creek and on the upstream of Ponderosa Way) 731 Comment
  UCR237299  Castilleja attenuata George K. Helmkamp, E. A. Helmkamp 2012-4-14 18750 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
  UCD122348  Castilleja campestris R. N. Raynor; H. A. Hannesson 1941-5-9 s.n. Butte 4 miles W. of Oroville. Comment
  CHSC4917  Castilleja exserta R. L. Adams 1964-3-24 56 Butte Open field NE of Chico. Manzanita Ave. E. of Manzanita School, Chico. Comment
  JEPS124106  Castilleja lacera Lowell Ahart 2015-5-27 20193 Butte About 100 yards south of the intersection of Forbestown Road and Black Bart Road, about 3 miles (air) southwest of Forbestown, about 11 miles (air) east of Oroville. Comment
  JEPS89031  Castilleja rubicundula subsp. rubicundula A. A. Heller and H. E. Brown 1914-5-8 Butte near Clear Creek (Berry Canyon); Berry Canyon Comment
  CHSC3372  Casuarina glauca Robert L. Smith 1966-3-1 37 Butte U.S. Plant Introduction Station 5 miles SE of Chico. Comment
  CHSC115407  Catalpa bignonioides M. Rogers 2013-5-20 Butte City of Chico residence on Pennisue Way. 60 Comment
  CAS-BOT-BC56924  Ceanothus Carl B. Wolf 1941-7-23 11049 Butte Northern Sierra Nevada. 5 mi. below Magalia on Oroville Road 609 Comment
  CHSC3611  Ceanothus cuneatus R. Jaegel 1966-2-21 29 Butte Collected 10 miles east of Durham Cemetary, in a meadow on the floor of the valley. Comment
  RSA754631  Ceanothus cuneatus var. cuneatus Dylan O. Burge 2007-5-11 DOB 923 c Butte Magalia Reservoir: at roadside on Skyway near gravel pit, 1.1 road miles (1.8 km) N of intersection with Pentz Road, 0.29 km 340 degrees True NNW of Magalia. 700 Comment
  CAS-BOT-BC50821  Ceanothus integerrimus John Thomas Howell 1975-6-15 51116 Butte Sierra Nevada - Paradise - skyway near Billie Road 609 Comment
  SEINET12211315  Ceanothus integerrimus S. A. Carter 1988-1 s.n. Butte S. side of Little Butte Creek, ca 8.8 mi ese of Chico, ca 75 ft W of Honey Run Road 160 Comment
  CHSC115316  Ceanothus integerrimus var. macrothyrsus Lowell Ahart 2015-4-18 20054 Butte On the east side of the road to the Forbestown Reservoir, about 1/4 mile southwest of the Forbestown Reservoir, about 3 1/2 miles (air) northeast of Forbestown. 573 Comment
  RSA300946  Ceanothus lemmonii D. C. Michener 1982-7-28 4141 Butte 4.4 miles SE of jct with 32 on Garland road, 3.1 miles NW of jct of Powellton road and Skyway road near De Sabla Comment
  UC203659  Ceanothus lemmonii A. A. Heller 1914-5-18 11371 Butte near Forest Ranch; w slope of the Sierra 731 Comment
  JEPS120143  Cedrus deodara Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18023 Butte On the north side of Big Chico Creek, on the south side of the paved park road, south of the old walnut orchard, south of Vallombrosa Avenue, about 1/10 miles west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  CDA19001  Centaurea maculosa Keck, Riley 2000-7-25 PDR 1170759 Butte 2 miles N of Skyway, on the west side of Coutolenc Rd in the vicinity of Magalia. 0 Comment
  CHSC97333  Centaurea solstitialis L. P. Janeway 2007-7-30 9147 Butte Northern High Sierra Nevada. Plumas National Forest; mid-slope of Mountain Spring House Ridge above South Branch Feather River, along the road to Milsap Bar. 1204 Comment
  RSA755414  Centaurea solstitialis L. Ahart 2009-6-30 15953 Butte Open area west of the Guardian Rock Trail, about 120 yards north of the Pine Trail, about 3/8 air mile southwest of the intersection of Ten Mile House Road and Highway 32, Upper Bidwell Park, about 10 miles northeast of Chico. 399 Comment
  CHSC100515  Centaurium tenuiflorum Lowell Ahart 2008-11-4 15402 Butte On the sides of Potter Ravine, below the high water line of Lake Oroville, about one mile north of the large parking area on the north end of Oroville Dam, about 5 miles (air) northeast of Oroville. 242 Comment
  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
  POM130643  Centaurium venustum E. B. Copeland 1903-7-27 3487 Butte Chico. Comment
  CHSC21039  Centromadia fitchii M. S. Taylor 1975-10-4 950 Butte On e side of Kunkle Reservoir, ca. 500 yds e of Pentz-Magalia Hwy, ca. 1 mi s of Paradise. 609 Comment
  CAS-BOT-BC288525  Centromadia fitchii David D. Keck 1930-7-25 973 Butte 6.5 miles E of Oroville on Forbestown Rd 425 Comment
  JEPS88496  Centromadia parryi subsp. rudis Vernon H. Oswald and Lowell Ahart 1996-7-22 8096 Butte US Fish and Wildlife Service parcel between 7 Mile Lane and Sacramento River (on edge of public access parking lot on 7 Mile Lane, adjacent to se corner of Tract 2, Sanctuary II); Sacramento River National Wildlife Refuge, Llano Seco Unit 33 Comment
  CHSC45958  Centunculus minimus Lowell Ahart 1975-6-19 795 Butte Along the edge of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 3 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  CAS-BOT-BC222896  Cephalanthus occidentalis John Thomas Howell 1961-9-22 36764 Butte North Fork of Feather River, 10 miles from Oroville Comment
  SEINET10784326  Cephalanthus occidentalis Carol L. Kelloff 2006-7-29 Kelloff 1423 Butte Chico. University of Chico campus along the Big Chico Creek. 56 Comment
  UCD121534  Cephalanthus occidentalis L. E. Hazeltine 1916-7-7 s.n. Butte Chico. Comment
  JEPS12459  Cephalanthus occidentalis var. californicus H. A. Dutton 1921-1 Butte Hooker Oak Chico (Chico) Comment
  SEINET10500789  Cephalanthus occidentalis var. californicus Mary Susan Taylor 1980-8-30 Taylor 3324 Butte T20N R4E nw border sec 23, Oroville Dam quad. E Table Mt, in Potter Ravine, along creek at dirt rd crossing, between the High Rocks and Box Hall Flat, ca. 2 air mi E of Oregon City on Table Mt, 8 mi N of Oroville. 305 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
  RSA0118721  Cerastium glomeratum Lowell A. Ahart 2014-4-15 19355 Butte About 400 yards west of the old road, about 3.5 miles (air) northeast of Oroville Dam. 236 Comment
  UC203620  Cerastium glomeratum A. A. Heller 1914-3-7 11187 Butte low hills 8 mi. n. Oroville Comment
  CAS-BOT-BC388266  Cerastium glomeratum Lowell Ahart 1980-5-4 2181 Butte Thermalito 65 Comment
  UC956837  Ceratophyllum demersum Herbert L. Mason and Verne Grant 1946-8-8 12994 Butte Sanford Slough on Tule Gun Club (Butte Sink); , Sanford Slough Comment
  CHSC42976  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
  CHSC99573  Cercocarpus betuloides var. betuloides L. P. Janeway 2008-5-26 9368 Butte Northern Sierra Nevada Foothills. Along south side of Skyway 3.5 km southwest of Paradise and Neal Road. 360 Comment
  RSA794797  Cercocarpus betuloides var. betuloides L. Ahart, John Dittes 2009-3-20 15518 Butte On south side of the Guardian Rock Trail, about 175 yards southwest of the Ten Mile House Road Trail, about 200 yards west of Highway 32, west of the intersection of Highway 32 and Ten Mile House Road, Upper Bidwell Park., About 10 miles northeast of Chico. 407 Comment
  SEINET267157  Cercocarpus betuloides var. betuloides T. A. Ranker, PG Trapp 1994-6-17 1624 Butte Pence Road south of Paradise; Cherokee quad. 7.5 min topographic map; along road 395 Comment
  CHSC11845  Chaenactis douglasii var. douglasii E. B. Copeland 1931-7-6 692 Butte Jonesville. 1900 Comment
  CHSC44857  Chaenactis glabriuscula var. heterocarpha Lowell Ahart 1979-6-9 1925 Butte East of Magalia. 640 Comment
  CAS-BOT-BC140753  Chamaebatia foliolosa Lowell Ahart 1987-5-11 5620 Butte South of the Forbestown Ditch, about 2 1/2 miles north-east of Forbestown 868 Comment
  SEINET7042405  Chamaebatiaria millefolium A. G. Vestal 1963-5-30 s.n. Butte Ca 1.4 miles west of Fobestown. Forbestown quadrangle UTM Zone 10, 647446mE, 4376583mN. Comment
  CHSC30216  Chamaesyce hooveri M. S. Taylor 1980-8-15 3252 Butte In Pentz vernal pool, 0.4 mi se of jct of Pentz (Benum) Rd and Hwy 99, ca. 10 mi s of Chico. 54 Comment
  OBI59419  Chamaesyce hooveri R. D. Stone & R. E. Buck, R. E. Buck 1987-1 Butte Comment
  CHSC34126  Chamaesyce maculata L. Ahart 1981-9-26 3200 Butte Along the Sacramento River, ca. 6 mi w of Chico. 40 Comment
  CHSC42957  Chamaesyce maculata Lowell Ahart 1987-7-3 5781 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
  JEPS115727  Chamaesyce maculata Lowell Ahart 2009-8-15 16283 Butte Garden area, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville 33 Comment
  JEPS29838  Chamaesyce ocellata Rimo Bacigalupi and L. R. Heckard 1962-6-1 8582 Butte 200 ft e junction of Paradise Rd and rd to Centerville 60 Comment
  NY246351  Chamaesyce sulfurea A. A. Heller 1913-9-16 11140 Butte Hills near Big Chico Creek, E of Chico Comment
  CAS-BOT-BC165955  Chamerion angustifolium H. F. Copeland 1920-8-29 143 Butte Jonesville 1219 Comment
  SEINET10971573  Cheilanthes californica Lowell Ahart 1983-5-28 Ahart 4023 Butte Along trail to Feather Falls, ca. 5 mi n of the town of Feather Falls. Yellow Pine Forest; 600 m. 600 Comment
  SEINET10966199  Cheilanthes siliquosa Mary Susan Taylor 1981-3-31 Taylor 3454 Butte T22N R4E ne sec 12. Pulga SW quad. N side of spur rd 1/4 mi w of its jct with Ponderosa Way (Rim Rd), ca. 5 air mi n of its jct with Hwy 70 at Jarbo Gap, 18 air mi ne of Oroville; 2600 ft. 792 Comment
  SEINET10838810  Chenopodium album Mary Susan Taylor Taylor 772 Butte Weedy or cultivated plants of Chico. 61 Comment
  SEINET10479020  Chenopodium botrys Lowell Ahart 1984-6-8 Ahart 4672 Butte At the Ponderosa Dam, ca. 2 mi NW of Forbestown; Yellow Pine Forest; 370 m. 370 Comment
  CHSC102985  Chenopodium strictum var. glaucophyllum Lowell Ahart 2009-8-13 16281 Butte At the south end of the cement barrier that controls the waster flow into Mud Creek, the north part of the diversion structure that controls Mud Creek diversion and Lindo Channel, northeast of Hooker Oak, Upper Bidwell Park, Chico. 68 Comment
  CHSC30901  Chimaphila menziesii M. S. Taylor 1978-9-9 1907 A Butte Bull Run Rd, ca. 10 mi s of Butte Meadows. 1463 Comment
  UCD117414  Chimaphila umbellata Franklin C. Raney 1964-9-10 s.n. Butte Ten miles northeast of Feather Falls. Comment
  CDA1901  Chloris virgata L. Ahart 2004-6-29 11147 Butte On the E side of Lone Tree Road, about 1/2 mi. N of Palermo Road, about 1 1/2 mi. (air) NW of Palermo, about 5 mi. (air) south of Oroville. Comment
  CHSC87541  Chlorogalum angustifolium R. D. Fischer; Jenny Marr 2004-4-27 137 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located at north end of Disk Golf Course, near the top of the north-connecting trail going down toward Guardian Trail. Scattered throughout Disk Golf Course. 381 Comment
  JEPS55646  Chlorogalum angustifolium H-M. Beard 1968-8-12 67 .1209 Butte ca 7 mi s Oroville Comment
  CHSC30089  Chlorogalum pomeridianum M. S. Taylor 1980-7-5 3053 Butte Ca. 1 mi e of Meridian Rd, ca. 1 1/4 mi ne of its jct with Hwy 99, ca. 8 mi n of Chico. 67 Comment
  SEINET10472639  Chlorogalum pomeridianum Mary Susan Taylor 1975-3-10 Taylor 406 Butte Honey Run Covered Bridge, along Butte Creek, from bridge, on bluffs (S side) down to creek and along creek, returning to bridge; ca. 8 mi E of Chico. Riparian Woodland and Foothill Woodland. 152 Comment
  CHSC97034  Chondrilla juncea L. P. Janeway 2007-7-11 9113 Butte Northern High Sierra Nevada. along the southeast edge of Oroville-Quincy Hwy 0.6 km southwest of 4-Mile Ridge Road. 1006 Comment
  JEPS117155  Chorizanthe stellulata Lowell Ahart 2010-4-30 16604 Butte Open area 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
  RSA505436  Chrysothamnus parryi subsp. latior R. C. Bacigalupi 1957-7-26 6039 Butte Along road berm on the Humbug Road, 2.2 miles SW of Nimshaw, at eastern canyonside of Butte Creek 579 Comment
  CHSC87213  Cicendia quadrangularis Lowell Ahart 2004-4-4 10714 Butte Bottom of a vernal pool, about 250 yards east of Wilber Road, northeast of the high hill crossed by Wilber Road, cattle pasture, about 3 miles (air) west of Thermalito. 48 Comment
  JEPS117264  Cicendia quadrangularis Lowell Ahart 2010-5-14 16645 Butte On the west side of the old Humboldt Road, Disc Golf Area, about 150 yards west of the entrance to the Disc Golf Area, about 40 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 395 Comment
  RSA4232  Circaea alpina subsp. pacifica E. B. Copeland 1929-7-20 386 Butte Jonesville. 1500 Comment
  CAS-BOT-BC285279  Cirsium andersonii E. B. Copeland 1931-7-27 s.n. Butte Jonesville 1650 Comment
  CAS-BOT-BC285282  Cirsium andersonii A. A. Heller 1914-8-6 11640 Butte About Chico Meadows 1219 Comment
  RSA0070621  Cirsium douglasii var. breweri E. B. Copeland 1930-7-28 488 Butte Jonesville. 1600 Comment
  SJSU11874  Cirsium occidentale var. candidissimum J. B. Willis Jr. 1969-5-3 Butte State Highway 70, 7 mi N of Oroville Comment
  UC921141  Cirsium occidentale var. candidissimum H. S. Reed 1939-8-5 292 Butte Chico 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
  SEINET10473708  Cirsium proteanum Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4075 Butte T20N R5E sec 6. Along Bloomer Hill Rd, ca. 3/4 mi w of Oroville-Quincy Hwy, ca. 15 mi ne of Oroville. Foothill Woodland; 425 m. 425 Comment
  POM180913  Cirsium vulgare H. F. Copeland 1923-6-22 871 Butte Nelson Comment
  CAS-BOT-BC228750  Cistanthe umbellata A. A. Heller 1913-6-7 10804 Butte Near Stirling 1074 Comment
  HSC43115  Clarkia arcuata Maralyn O'Meara 1974-4-20 295 Butte Table Mtn. 305 Comment
  CHSC62766  Clarkia biloba subsp. brandegeeae L. P. Janeway; Gail Kuenster, Perrie Cobb, Justine Biddison 1993-5-25 4354 Butte Plumas National Forest. 0.1 mi west of the south end of Ponderosa Dam; South Fork Feather River. Adjacent to dirt road and on the road cutbank. 298 Comment
  CHSC10748  Clarkia concinna subsp. concinna Lowell Ahart 1966-5-17 Butte Honey Run Road, near Chico. 152 Comment
  CHSC3329  Clarkia concinna subsp. concinna Robert L. Smith 1966-5-17 4 Butte Honey Run Rd., 3 miles W of Paradise. Comment
  CAS-BOT-BC164522  Clarkia gracilis subsp. albicaulis Frances Brown 1934-1-1 s.n. Butte Mountains above Chico Comment
  JEPS115984  Clarkia gracilis subsp. albicaulis Lowell Ahart 2009-6-3 15823 Butte On the east side of Big Chico Creek, on the east side of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 234 Comment
  CHSC46131  Clarkia gracilis subsp. gracilis Lowell Ahart 1975-5-12 755 Butte On dredger piles, along North Honcut Creek, Peter Ahart Ranch, about 3/4 mile north and 2 1/2 miles east of Honcut, about 12 miles south of Oroville. 36 Comment
  SEINET9349101  Clarkia mildrediae Unknown 1996-7-9 13174 Butte Plumas National Forest Comment
  CDA13724  Clarkia mildrediae subsp. lutescens G. F. Hrusa, T. D. Wilfred 1997-6-27 13902 Butte Sierra Nevada; Feather Falls/Cascade Rd. to USFS 21N22Y, 1 km. E to summit. Comment
  CHSC88628  Clarkia mildrediae subsp. lutescens Linnea Hanson 1983-8-3 207 Butte Plumas National Forest. Little North Fork Road. 1219 Comment
  CHSC89900  Clarkia mildrediae subsp. lutescens M. K. Hayden; N. L. Jurjavcic 2004-6-23 Butte Northern High Sierra Nevada. At Sly Creek Powerhouse. From within the powerhouse yard, down 50 to 100 feet along the roadside (roadside away from reservoir). 1005 Comment
  CHSC1105  Clarkia mildrediae subsp. mildrediae R. Carter 1964-6-15 124 Butte Feather River Canyon along S side Hwy. 40 on W side of tunnel, Arch Rock. 609 Comment
  CHSC70734  Clarkia mildrediae subsp. mildrediae L. P. Janeway 1995-7-16 4858 Butte 0.8 mi northwest of Oak Point; 0.8 mi east of Transfer Ridge; east side of Breakneck Canyon 1.5 mi north of Kimshew Creek; along Concow Road 8.2 mi east of West Branch Feather River. 1402 Comment
  CHSC64112  Clarkia mosquinii L. P. Janeway; B. Castro 1994-7-6 4683 Butte West end of Jackson Ranch Ridge; 0.8 mi east-northeast of the falls of Feather Falls. 1051 Comment
  JEPS102944  Clarkia mosquinii L. P. Janeway 2002-6-22 7605 Butte Northern High Sierra Nevada. Along Bardee's Bar Road 1.3 km north of Big Bend Road; about 1/2 way between Jarbo Gap and North Fork Feather River. Burned area 655 Comment
  HSC38017  Clarkia purpurea Thomas W. Nelson, Jane P. Nelson 1976-5-10 2477 Butte S facing slope beside Hwy. 191, 1 mi. W of Paradise Comment
  CHSC46387  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
  CHSC84866  Clarkia purpurea subsp. quadrivulnera L. P. Janeway 2003-5-24 7796 Butte Northern Sierra Nevada Foothills. Along dirt road to 'Power-house' on the south side of the east end of Thermalito Diversion Pool (Feather River); 670 m southwest of the base of Oroville Dam. 82 Comment
  RSA448320  Clarkia purpurea subsp. viminea L. Ahart, Peter Ahart 1984-5-28 4650 Butte On a large road cutbank along Highway 40, now called Dark Canyon Road, ca. 2 miles E of Old Yankee Hill, ca. 16 miles NE of Oroville. 450 Comment
  CHSC70746  Clarkia rhomboidea L. P. Janeway 1993-6-10 4383 Butte Southwest side of Watson Ridge about 1.5 mi east of Bald Rock Dome. 822 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
  SEINET3260809 Image available Clarkia rhomboidea E. B. Copeland 1931-6-10 663 Butte Jonesville. 1650 Comment
  CAS-BOT-BC164785  Clarkia rhomboidea A. A. Heller 1921-5-30 13552 Butte Along the road toward Cohassett Comment
  SEINET10492534  Clarkia rhomboidea Mary Susan Taylor 1978-7-21 Taylor 1792 Butte of Lake Madrone, at Oroville-Quincy Hwy turnoff, ca 10 miles NE of Oroville; Yellow Pine Forest. 2000 feet. 610 Comment
  SEINET210458  Claytonia palustris E. B. Copeland 1929-7-28 358 Butte Jonesville CA. along Spring Cr. 1500 Comment
  CHSC109115  Claytonia parviflora subsp. parviflora Lowell Ahart 2012-3-23 17802 Butte On the sides of the trail down to Big Chico Creek, about 70 yards west of Ten Mile House Road, about 3/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. 202 Comment
  UC726489  Claytonia parviflora subsp. parviflora A. A. Heller 1920-4-10 13362 Butte Chico Comment
  SEINET11931358  Claytonia perfoliata S. C. Joslin 1978-1 14 Butte ca 4 mi NW of Chico on Cohasset Rd at intersection with Richardson Springs Rd 91 Comment
  SEINET11933184  Claytonia perfoliata M. S. Taylor 1981-1 3807 A Butte Vallombrosia St., E of its jct with Espanade, Chico 30 Comment
  SEINET7067162  Claytonia perfoliata subsp. mexicana A. G. Vestal 1947-5-1 s.n. Butte Meadow on Little Chico Creek east of Route 32 northwest of Butte Meadow. Coordinate datum: NAD27. Comment
  SEINET10895985  Claytonia rubra Mary Susan Taylor 1981-4-16 Taylor 3541 Butte T21N R6E nw sec 18, Brush Creek quad. Galen Ridge, ca. 1 mi SE of Brush Creek. Yellow Pine Forest; 3400 ft. 1036 Comment
  CHSC56070  Claytonia rubra subsp. rubra L. P. Janeway 1988-6-14 2774 Butte Ewalt Camp; edge of open dry meadow along West Branch Butte Creek 2.0 mi east from Hwy 32 by dirt road. 922 Comment
  UC726582  Claytonia rubra subsp. rubra A. A. Heller 1918-5-5 13007 Butte Magalia Comment
  CHSC1438  Clematis lasiantha J. Koopman 1929-4-18 Butte Honey Run canyon. 396 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
  CHSC84380  Clematis ligusticifolia L. Ahart; P. Ahart 1983-7-24 4215 Butte At the Forbestown Reservoir, ca. 5 mi ne of Forbestown. 450 Comment
  UCD95581  Clematis ligusticifolia L. and P. Alhart 1993-7-24 4215 Butte Western Virgin's Bower. At the Forbestown Reservoir, ca. 5 mi NE of Forbestown Reservoir, Yellow Pine Forest. 450 Comment
  CAS-BOT-BC499273  Clintonia uniflora V. Oswald; L. Ahart 1988-6-17 3401 Butte West side of Pinkard Creek, 1 mile north of Lost Creek Reservoir 1028 Comment
  CAS-BOT-BC238019  Collinsia Jim Riley 1923-4-2 s.n. Butte Richardson Springs Comment
  RSA633334  Collinsia sparsiflora Michael A. Vincent, Ethan H. Freid 1998-4-6 8129 Butte Table Mountain. Comment
  CHSC26839  Collinsia torreyi M. S. Taylor 1978-6-24 1648 Butte Humbolt Summit, Butte Co and Tehama Co line. 2133 Comment
  SEINET10496939  Collomia heterophylla Mary Susan Taylor 1980-4-27 Taylor 2550 Butte T23N R3E ne sec 27. Paradise quad. Ca. 1 mi S of Nimshew, ca. 1/4 mi E of Nimshew Rd; Yellow Pine Forest. With J.D. Jokerst. 610 Comment
  UC392188  Collomia linearis E. B. Copeland July, 1929 Butte in open woods above Jonesville 1750 Comment
  CHSC11956  Collomia tinctoria E. B. Copeland 1931-6-29 679 Butte Jonesville. On gravel bars along Butte Creek. 1500 Comment
  CHSC87561  Comandra umbellata subsp. californica R. D. Fischer 2004-4-13 64 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Found near the southern end of Humboldt Trail. Old road bank. 441 Comment
  RSA755266  Comandra umbellata subsp. californica L. Ahart 2009-5-15 15704 Butte About 20 yards E of the dirt road that is Ten Mile House Road, Upper Bidwell Park, about 3/4 air mile W of Highway 32, about 10 miles NE of Chico. 234 Comment
  NY643133  Convolvulus arvensis A. A. Heller 1916-9-9 12657 Butte Near Durham Comment
  JEPS115278  Conyza canadensis Lowell 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 263 Comment
  CAS-BOT-BC286068  Conyza canadensis Lowell Ahart 1982-10-6 3848 Butte Along the banks of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 and 3/4 miles east of Honcut 50 Comment
  SEINET10474192  Conyza canadensis Mary Susan Taylor, L. Hanson 1981-3-12 Taylor 3396 Butte T20N R6E center sec 23. Forbestown quad S side of 20N53.2, ca. 1 mi SW of Feather Falls Community. Elevation ca. 2900 ft. 884 Comment
  POM219173  Corallorhiza maculata H. F. Copeland 1928-8-14 308 Butte Jonesville. Comment
  UCD123105  Cordylanthus pilosus subsp. hansenii L. Ahart 1977-6-16 1427 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC44067  Cordylanthus tenuis subsp. tenuis Lowell Ahart 1983-8-16 4279 Butte Along Humboldt Road, about 3 miles SW of Butte Meadows. 1450 Comment
  CHSC5947  Cornus florida M. MacArthur 1968-6-17 170 Butte SW end of bridge over Big Chico Creek NW of Dining Hall, Chico State College campus. 60 Comment
  CHSC31087  Cornus nuttallii Herb Allan McLane 1980-4-25 21 Butte 20 ft. n of Ponderosa Way, Plumas National Forest. 670 Comment
  CHSC32750  Cornus nuttallii M. S. Taylor 1981-4-14 3531 Butte N side of Ponderosa Way (Rim Rd.), ca. 2 mi n of Jarbo Gap on Hwy 70, ca. 20 air mi n of Oroville. 883 Comment
  UC1122795  Cornus nuttallii J. E. Sowder 1933-7-6 107 Butte 2 mi. n.e. Cohassett; Chico Quad. Comment
  CHSC48307  Cornus sericea subsp. sericea Vernon Oswald 1987-6-23 3007 Butte Just w of the Skyway, 1.4 mi (odometer) s of Inskip. 1426 Comment
  UC1122804  Cornus sessilis R. Bacigalupi 1934-9-2 2325 Butte 10 mi. s.w. Butte Meadows (along Chico-Butte Meadows Rd., canyon of W. Fork Campbell Creek); Lassen Nat'l Forest, Chico Quad., W. Fork Campbell Creek Comment
  SEINET10565419  Cortaderia Mary Susan Taylor, Lowell Ahart 1982-10-11 Taylor 5142 Butte T17N R1E N/NE Sec. 24. Pennington Quad. Graylodge Wildlife Refuge, vicinity of check-in station, SW jct of Pennington & Rutherford Rds., ca. 12 mi SW of Gridley. 21 Comment
  SEINET10863881  Cortaderia Mary Susan Taylor, Lowell Ahart 1982-10-11 Taylor 5143 Butte T17N R1E N/NE Sec. 24. Pennington Quad. Graylodge Wildlife Refuge, vicinity of check-in station, SW jct of Pennington & Rutherford Rds., ca. 12 mi SW of Gridley. 21 Comment
  CDA39607  Corylus cornuta var. californica T. C. Fuller 1962-7-12 9189 Butte Road to Jonesville, 2 miles east of Butte Meadows. 0 Comment
  UC1586403  Cotoneaster pannosus Lowell Ahart 1991-6-19 6661 Butte along the Dan Beebe Trail in Lake Oroville Recreation Area, between Canyon Drive and Oroville Dam Blvd East, southwest of Orovillle Dam. 213 Comment
  CHSC118553  Cotula australis Lowell Ahart 2017-4-22 21389 Butte Normal plants, where we park vehicals, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles (air) south of Oroville. 31 Comment
  JEPS128724  Cotula australis Lowell Ahart 2017-4-22 21389 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles (air) south of Oroville. Comment
  CHSC45001  Cotula coronopifolia Lowell Ahart 1979-5-20 1886 Butte Man made pond, west of the Western Pacific Railroad, about 2 miles south of Palermo. 33 Comment
  RSA517004  Cotula coronopifolia Barbara Ertter, Lowell Ahart 1986-4-13 5903 Butte 2 air miles NNE of Honcut between Oroville and Marysville, Peter Ahart Ranch (Mostly used as sheep pasture). 30 Comment
  CAS-BOT-BC427629  Crassula aquatica Lowell Ahart 1989-5-23 6271 Butte In Dutch Ravine, about 1/8 mile north of Swedes Flat Road, about 1 1/2 miles east of the Oroville Bangor Highway, north of Bangor 426 Comment
  CHSC113201  Crassula aquatica Lowell Ahart 2014-4-16 19364 Butte On the sides but near the bottom of a large canal, about 100 yards north of East Gridley Road, on the west side of the Feather River, about 2 miles east of Gridley. 29 Comment
  JEPS102771  Crassula aquatica Lowell Ahart 2001-4-15 8728 Butte 4 air mi SW of Gridley (Gray Lodge Waterfowl Management Area; deep ditch SE of the large pump, S side of Evans-Reimer Road, 1 mi E of Pennington Road) 22 Comment
  CHSC90952  Crassula connata Lowell Ahart 2005-4-14 11724 Butte About 20 feet east of the railroad tracks, north of Spruce Street, Gridley. 28 Comment
  UCD101854  Crassula connata Michael A. Vincent; Ethan H. Freid 1998-4-6 8126 Butte Table Mountain. Comment
  CHSC26720  Crassula tillaea Hayes; Taylor 1978-4-14 151 Butte On the east side of Williams road, approx. 1/4 mi n of Pentz road on the Butte College Campus. 65 Comment
  CHSC31166  Crassula tillaea M. S. Taylor; J. D. Jokerst 1980-3-28 2403 Butte Just e of Chico, between Humboldt Rd, and Hwy 32, ca. 1/4 mi e of Forest Ave., ca. 1.5 mi e of Hwy 99. 76 Comment
  CHSC38402  Crassula tillaea Vernon Oswald 1983-3-14 173 Butte Upper Bidwell Park, Chico, along the hiking trail, ca. 1600 ft w of the power lines. 195 Comment
  CAS-BOT-BC190090  Crypsis schoenoides Lowell Ahart 1986-11-14 5481 Butte About 0.1 mile south of the clay burrow for Oroville Dam, about 0.25 mile east of Larkin Road, about 6 miles southwest of Oroville. 36 Comment
  CHSC110331  Crypsis schoenoides B. Castro; Margie Graham 2013-8-24 1602 Butte Sacramento Valley. Ca 1 mi W of Hwy 99 and 3 mi NE of Richvale, just S of the Western Canal siphon in Cherokee Canal. On E side of canal about 100 ft S of dirt road crossing the canal. 35 Comment
  SEINET10967136  Crypsis schoenoides Lowell Ahart 1986-11-14 Ahart 5481 Butte On dry red gravelly soil, 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. 37 Comment
  JEPS113173  Cryptantha affinis Lowell Ahart 2007-5-29 13926 Butte Near the southeast edge of Bald Rock Dome, on the west side of the Dome Trail, trail leads to the Middle Fork of the Feather River, about 1 1/2 miles by the trail from the trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeas 636 Comment
  RSA4225  Cryptantha affinis E. B. Copeland 1929-7-29 395 Butte Jonesville. 1700 Comment
  SD122568  Cryptantha flaccida Lowell Ahart 1984-6-8 4668 Butte At the Ponderosa Dam, ca. 2 miles northwest of Forbestown 370 Comment
  POM71368  Cryptantha flaccida C. C. Bruce 1891-03 1930 Butte Hams? Comment
  SEINET10497602  Cryptantha hendersonii Mary Susan Taylor 1981-6-19 Taylor 3964 Butte T22N R5E ne sec 6. Pulga quad. On serpentine, N side of Feather River Hwy 70, at NW end of Pulga bridge and along Pulga Rd ca. 1/4 mi, ca. 20 mi NE of Oroville. Open & dry weathered reddish serpentine. 1600 ft elev. 488 Comment
  CHSC27606  Cryptantha intermedia Robert Schlising 1978-5-17 3256 Butte Magalia; serpentine outcrop just S of Magalia Reservoir and crossed by S. T. RR and Coutelenc Road. 670 Comment
  JEPS26228  Cryptantha intermedia R. F. Hoover 1937-5-18 2234 Butte 3 mi n Chico Comment
  UC660010  Cryptantha intermedia Lincoln Constance 1941-5-28 2830 Butte Magalia, Sierra Nevada foothills Sierra Nevada, South Branch of the Feather River 487 Comment
  UC763036  Cryptantha intermedia R. F. Hoover 1937-5-18 2234 Butte 3 mi n Chico Comment
  UCD80136  Cryptantha intermedia CNPS SN Foothill Team 2006-5-23 SNNR 0789 a Butte BLM Parcels near Paradise. 520 Comment
  SEINET12331819  Cryptantha intermedia Unknown 1985-1 4966 Butte W of Lunt Road, ca 0.5 mi N of intersection of Lunt Road and Hwy 70, N of Yankee Hill, N of Oroville 503 Comment
  CHSC29973  Cryptantha milobakeri R. A. Schlising 1980-6-30 3806 Butte Along Humboldt Road, 1.9 mi NE of jct with Hwy 32 at Lomo. 1356 Comment
  SBBG28777  Cryptantha milobakeri L. S. Rose 1939-6-7 39246 Butte N Fork of Feather River, 3 mi S of Pulga 609 Comment
  CHSC39028  Cryptantha rostellata Lowell Ahart 1984-5-18 4606 Butte Peter Ahart Ranch, about 1.25 mi e of Honcut and 12 mi s of Oroville. 50 Comment
  CHSC38430  Cucumis melo Vernon Oswald 1983-9-17 1041 Butte Upper Bidwell Park, Chico, near Chico Creek ca. 0.2 mi e of the end of the pavement. 91 Comment
  UC1134222  Cupressus macnabiana H. A. Jensen 1933-12-15 369 Butte 1 mi sw Brownsville; Smartsville Quadrangle Comment
  UCD133580  Cupressus macnabiana M. Vincent 1961-3-27 14 Butte One mile north of Magalia on rocky bluff. 914 Comment
  UC1594627  Cuscuta campestris Lowell Ahart 1992-5-23 6772 Butte about 2 mi w Biggs (on the n side of Biggs Princeton Road) 30 Comment
  CHSC47406  Cuscuta howelliana Lowell Ahart 1980-6-15 2373 Butte About 2-1/2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  POM219431  Cuscuta suksdorfii var. subpedicellata E. B. Copeland 1931-7-17 676 Butte Jonesville. Near the head of South Willow Creek. 1700 Comment
  UC105509  Cycladenia humilis var. humilis Mrs. R. M. Austin 1894-1 376 Butte 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
  CHSC113125  Cynodon dactylon Lowell Ahart 2013-11-18 19284 Butte Below the high water line of Lake Oroville, about 150 yards northeast of the boat ramp at the end of Stringtown Road, about 50 yards north of the road, about 2 1/2 miles (air) northeast of Hurleton. 261 Comment
  CHSC2139  Cynodon dactylon B. Hetherington 1949-5-1 Butte Chico. 57 Comment
  SEINET10497509  Cynoglossum grande Mary Susan Taylor 1980-2-14 Taylor 2314 Butte T19N R6E sw 1/4 sec 8. Macabes Creek, ca. 100 ft E of Lumpkin Rd, ca. 2.5 mi N of its jct with Forbestown Rd, ca. 18 mi NE of Oroville. Shaded, cool Riparian Woodland. 457 Comment
  SEINET10507676  Cynosurus echinatus Lowell Ahart, Peter Ahart 1983-6-12 Ahart 4035 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
  JEPS87444  Cyperus bipartitus Lowell Ahart 1993-7-23 7104 Butte ca. 6 (air) mi. n.e. of Feather Falls (w. side of Fall R., 100 yds. w. of bridge across Fall river); w side Fall River 1036 Comment
  CHSC109752  Cyperus difformis Lowell Ahart 2012-10-20 18504 Butte Soil and gravel bar on the south side of Big Chico Creek, about 100 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. 68 Comment
  CHSC30503  Cyperus difformis J. D. Jokerst; M. S. Taylor 1979-11-1 634 Butte Field north of Goodspeed-Watt Road, 0.1 mi N of its jct with Nelson, ca 6.0 mi S of Chico. Comment
  SEINET3450852  Cyperus difformis Unknown 2003-6-23 10314 Butte Oroville, Oroville, about 12 miles south, Peter Ahart Ranch, about 2 1/8 miles north of Honcut, about 300 yards east of Palermo Honcut highway 30 Comment
  CAS-BOT-BC114740  Cyperus difformis M. S. Taylor; James D. Jokerst 1979-11-11 2282 Butte Ca. 10 ft. W of W side of Goodspeed-Watt Rd. ca. 6 mi S of Chico. 33 Comment
  SEINET3909602  Cyperus erythrorhizos L. P. Janeway 1986-9-20 1871 Butte Northwest side of Little Chico Creek near River Road, about 2 mi south of Chico River Road.; 0 37 Comment
  UC1100518  Cyperus erythrorhizos Herbert L. Mason 1945-9-19 12738 Butte Gray Lodge Game Refuge n.w. Pennington; Gray Lodge Game Refuge Comment
  CHSC43785  Cyperus esculentus Vernon Oswald 1987-7-23 3145 b Butte Portion of Rancho Bosquejo. Feenstra's Riverview Orchard located at the w end of Cana Rd. between the s half of Cana Lake (Dicus Slough) and the Sacramento River. 48 Comment
  CHSC76012  Cyperus esculentus Lowell Ahart; Vernon H. Oswald 1999-8-13 8141 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
  JEPS95884  Cyperus flavescens Lowell Ahart 1999-8-13 8143 Butte about 1 mile southeast of Ord Ferry; Chico; 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
  SEINET13711402  Cyperus flavescens Lowell William Ahart, Lowell William Ahart 1999-1 8143 Butte 12 Air Mi SW of Chico, 2 Mi SE Ordbend Comment
  HSC103917  Cyperus iria L. Ahart 2012-10-5 18476 Butte About 2 mi. (air) SW of the Oroville Airport; south edge of parking area at the end of the road to Larkin Road Boat Launch Area 28 Comment
  CHSC78283  Cyperus niger Lowell Ahart 2000-6-21 8500 Butte In a small seep, south of Parking Area P, north of Salmon Hole, Upper Bidwell Park, about 3 1/3 miles (air) northeast of Manzanita Avenue, Chico. 106 Comment
  UCD141102  Cyperus squarrosus A. A. Heller 1917-7-28 12840 Butte Butte Meadows. 1280 Comment
  CAS-BOT-BC114210  Cyperus strigosus John Thomas Howell 1959-9-20 34636 Butte Lower foothills, eastern outskirts of Oroville. 60 Comment
  CHSC34197  Cyperus strigosus J. D. Jokerst; L. Ahart 1981-9-26 1494 Butte Swale ca 100 m E of Sacramento River at the Bidwell River State Park (Chico Landing) ca 5.0 mi W of Chico. Comment
  SEINET10467194  Cyperus strigosus Mary Susan Taylor 1979-10-3 Taylor 2222 Butte T23N R3E center of E eighth of sec 33. Riparian Woodland in Butte Creek Canyon, ca. 1/4 mi upstream from bridge crossing Butte Creek at Helltown Road, ca. 7 mi E of Honey Run Covered Bridge. 244 Comment
  CHSC27962  Cystopteris fragilis M. S. Taylor 1978-7-18 1705 Butte On top of Humboldt Peak, at Humboldt Summit, on Butte Co and Tehama Co Line. 2158 Comment
  CHSC58866  Cystopteris fragilis Lowell Ahart 1992-7-26 6835 Butte On the south side of Coon Hollow, about 1/2 mile north of the Carr Mine, about 2 (air) miles south of Snow Mountain. 1737 Comment
  SEINET10535618  Cystopteris fragilis Mary Susan Taylor 1980-3-8 Taylor 2375 Butte Pulga community, ca. 1 mi NE of Hwy 70, ca. 28 mi NE of Oroville; serpentine soils. 488 Comment
  SEINET10833642  Cystopteris fragilis Mary Susan Taylor 1976-5-5 Taylor 1118 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
  UCD137972  Damasonium californicum L. Ahart 1974-5-12 451 Butte along Central House Road, near Honcut. 30 Comment
  JEPS95166  Danthonia californica var. americana Lowell Ahart 1997-7-11 7755 Butte about 2 air mi sw of Bald Mountain (se of Cold Creek, about 9 mi by road from Stirling City or about 2 air mi ne of Stirling City, along a small stream n of the dirt road) 1219 Comment
  CHSC41995  Danthonia unispicata Lowell Ahart 1973-5-6 311 Butte Along Robinson Mill Road, west of Forbestown. 457 Comment
  UC1137166  Danthonia unispicata August L. Hormay 1929-6-22 Butte Butte Meadows; w exposure Comment
  CHSC49435  Datura stramonium var. tatula Vernon Oswald 1987-8-13 3211 Butte Portion of Rancho Bosquejo. Feenstra's Riverview Orchard located at the w end of Cana Hwy between the s half of Cana Lake (on Dicus Slough) and the Sacramento River. In a bean field. 48 Comment
  CHSC105788  Daucus carota Lowell Ahart 2010-9-13 17153 -A Butte Open dry areas, Oroville Wildlife Area, about 1/2 mile west of Pacific Heights Road, about 3 1/2 miles (air) northwest of Palermo. 31 Comment
  CAS-BOT-BC173263  Delphinium M. S. Taylor 1978-7-19 1757 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-BC8794  Delphinium gracilentum Lowell Ahart 1980-5-29 2356 Butte 5 miles north-east of Mountain House 1100 Comment
  CAS-BOT-BC8571  Delphinium hansenii John Thomas Howell 1962-6-16 37627 Butte Concow School north of Yankee Hill 533 Comment
  CHSC117611  Delphinium hansenii subsp. hansenii L. P. Janeway 2016-4-26 11937 Butte Sacramento Valley. Along Nelson Road 1.0 Road-km west off its bridge across Thermalito Forebay; where the road crosses Campbell Hills. 94 Comment
  CHSC52459  Delphinium hansenii subsp. hansenii Vernon Oswald 1983-5-21 509 Butte Upper Bidwell Park, Chico, on the north rim at the level of Horseshoe Lake. 152 Comment
  CHSC84274  Delphinium hansenii subsp. hansenii Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2003-5-27 10225 Butte On the east side of the dirt road, at Parking Area P, Upper Bidwell Park, about 5 miles east of Manzanita Avenue, Chico. 228 Comment
  JEPS117187  Delphinium hansenii subsp. hansenii Lowell Ahart 2010-6-1 16760 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 188 Comment
  JEPS115838  Delphinium nudicaule Lowell Ahart 2009-4-22 15590 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
  SEINET10536044  Delphinium nudicaule Mary Susan Taylor 1973-1 Taylor 20 Butte Along Cohasset Road leading from Chico. Comment
  SEINET5338040  Delphinium nudicaule P. A. Lehenbauer 1926-5-26 1239 Butte North Fork Feather River. Comment
  CAS-BOT-BC8027  Delphinium nuttallianum Herbert Faulkner Copeland 1929-6-12 1211 Butte Jonesville, near north Willow Creek 1524 Comment
  CAS-BOT-BC8067  Delphinium nuttallianum A. A. Heller 1915-6-10 11954 Butte Little Summit in the Sierra Nevada 1371 Comment
  UC854270  Delphinium nuttallianum A. A. Heller 1915-6-27 12038 Butte Jonesville Sierra Nevada 1676 Comment
  CDA24274  Delphinium variegatum subsp. variegatum T. C. Fuller 1958-4-15 Butte Highway 99E, 4 miles northwest of Oroville. 0 Comment
  CHSC1186  Dendromecon rigida L. Lancelot 1930-4-19 Butte Magalia. 731 Comment
  LA206367  Deschampsia cespitosa H. S. Yates; 1931-7-15 605 Butte Jonesville 1750.0 Comment
  SD215  Deschampsia cespitosa subsp. cespitosa E. B. Copeland 1931-7-15 Butte Jonesville; border of the Lily Pond. Comment
  SEINET3927686  Deschampsia danthonioides B. Ertter, Jeff Strachan 1980-5-5 3255 Butte Peter Ahart Ranch ca 1.5 miles northeast of Honcut between Oroville and Marysville. North of house.; 0 30 Comment
  UC203843  Deschampsia danthonioides A. A. Heller 1914-4-17 11301 Butte 8 mi. n. Oroville Comment
  UCD80539  Deschampsia danthonioides CNPS SN Foothill Team 2005-4-12 SNFN 0077 b Butte City of Chico, Doe Mill Meadowfoam Preserve, about 200 m SE of the end of Warfield Street (i.e. where the street crosses an old unusable bridge over a diversion canal). 87 Comment
  SEINET10869046  Deschampsia danthonioides Lowell Ahart 1983-5-12 Ahart 3977 Butte Along the power line, ca. 0.5 mi ne of jct of Hwy 99 and Pentz Rd, ca. 16 mi s of Chico. Valley Grassland; 65 m. 65 Comment
  CHSC112523  Deschampsia elongata B. Castro 2012-10-18 1990 Butte Sacramento Valley. At N end of Chico, just S of the Chico Airport, along Sycamore Creek, ca 900 ft downstream (W) of its crossing under the Cohasset Hwy bridge. 54 Comment
  CHSC31446  Deschampsia elongata L. Ahart 1980-9-10 2639 Butte Along the edge of the road, ca. 5 mi e of Millsap Bar, ca. 30 mi ne of Oroville. 1200 Comment
  CHSC38807  Deschampsia elongata Vernon Oswald 1983-6-14 687 Butte Upper Bidwell Park, Chico, beside Yahi Trail e of Brown's Hole. Near the creek. 207 Comment
  LA206370  Deschampsia elongata E. B. Copeland; 1929-7-16 335 Butte Jonesville 1550.0 Comment
  POM365045  Deschampsia elongata L. Ahart, P. Ahart 1984-6-10 4700 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown 700 Comment
  CHSC11912  Dicentra formosa E. B. Copeland 1929-7-22 364 Butte Jonesville. 1500 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
  UC1362265  Dicentra formosa Kingsley R. Stern 1964-5-15 2070 Butte ca 1.7 mi n Magalia (vicinity of Magalia Reservoir, just off Skyway 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
  POM97794  Dicentra formosa subsp. formosa R. M. Austin, C. C. Bruce 1895-05 2421 Butte Bidwell Grove 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
  UCD73058  Dichelostemma capitatum 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
  CHSC2095  Dichelostemma capitatum subsp. capitatum R. M. Staley 1953-7-17 Butte Canyon Creek. Comment
  CHSC30700  Dichelostemma capitatum subsp. capitatum M. S. Taylor 1980-5-27 2712 Butte Little Bald Rock, ca. 3 mi s of Brush Creek. 1016 Comment
  CHSC92530  Dichelostemma capitatum subsp. capitatum L. P. Janeway 2005-3-1 8339 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  UCD139211  Dichelostemma capitatum subsp. capitatum Kathy Corson 1969-4-6 2 Butte around 10 miles east of Chico on State Highway 32. Comment
  CHSC4165  Dichelostemma multiflorum R. Carter 1966-4-30 384 Butte Found 7 mi. E of Oroville, ca. 1/8 mi. w off Feathervale at 6120 Woodleaf St. Rt. 243 Comment
  CHSC92733  Dichelostemma multiflorum L. P. Janeway 2005-6-26 8430 Butte Northern High Sierra Nevada. South-facing slope 0.4 km south of top of Batchelor Point, 0.6 km east of top of Rocky Ridge and Rim Road (Ponderosa Way). 945 Comment
  SEINET12050315  Dichelostemma multiflorum Unknown 1985-1 5057 Butte Lumpkin Ridge, 1.5 mi E of Camp 18, about 8 mi NE of Feather Falls, 100 yds S of dirt road 975 Comment
  CAS-BOT-BC502511  Dichelostemma volubile Lowell Ahart 1977-5-22 s.n. Butte Peter Ahart Ranch, Honcut; Along North Honcut Creek. Foothill Woodland. 50 Comment
  CAS-BOT-BC502513  Dichelostemma volubile Helen M. Edwards 1917-6-6 s.n. Butte De Sabla 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
  CHSC108136  Digitaria sanguinalis Lowell Ahart 2011-10-29 17728 Butte On the bare sides of a ditch, on the south side of Biggs Princeton Road, about 500 yards west of Riceton Highway, about 1 mile northwest of Biggs. 27 Comment
  CAS-BOT-BC153764  Diplacus angustatus A. A. Heller 1915-4-12 11806 Butte Near Cohasset Comment
  CAS-BOT-BC151922  Diplacus douglasii Clare B. Hardham 1978-4-17 21556 Butte Lava - Lobb Mountain Comment
  CAS-BOT-BC150500  Diplacus grandiflorus Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  CHSC110047  Diplacus grandiflorus Lowell 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. 286 Comment
  CHSC44749  Diplacus grandiflorus R. Banchero 1980-6-14 217 Butte Big Bald Rock, ca 2.5 mi E of the lower jct with Zink and Bald Rock Rd. 975 Comment
  SEINET8340789  Diplacus grandiflorus Lowell Ahart 2006-5-10 12617 Butte Bardees Bar Road, about 100 yards north of the poor bridge across the North Fork of the Feather River at Bardees Bar, abotu 2 1/2 miles (air) southwest of Pulga. 354 Comment
  CHSC43186  Diplacus kelloggii Leslie Steidl 1980-4-1 7 Butte On n side of Craig Access Rd, 2 mi nnw of Lumpkin Rd at boundary of State Park, ca. 18 mi e of Oroville. 316 Comment
  SEINET8360328  Diplacus kelloggii Unknown 1985-4-8 2220 Butte above Hwy. 70 2.3 mi SW of Pulga Rd. 610 Comment
  CAS-BOT-BC153336  Diplacus layneae John Thomas Howell 1962-6-15 37533 Butte Magalia 731 Comment
  CHSC44769  Diplacus torreyi R. Banchero 1980-6-17 246 Butte Along the Skyway 1.1 mi NE of its jct with Coutolenc Rd, 2.4 mi W of Stirling City. 865 Comment
  CHSC75407  Diplacus tricolor Jennifer Slater 1997-4-27 32 Butte Edge of vernal pool depression at the Wurlitzer addition of the Vina Plains Preserve, west of Highway 99, approx. 10 miles north of Chico. 67 Comment
  CHSC45269  Dipsacus fullonum Vernon Oswald 1987-7-21 3142 Butte Between the Midway and the Southern Pacific RR, 0.6 mi s of Nelson. 36 Comment
  CHSC95143  Dodecatheon alpinum R. D. Fischer 2005-6-5 856 Butte Chico Meadows. Northern Sierra Nevada, n. of Forest Ranch, 5 miles w. of Hwy 32 off Humboldt Road to Butte Meadows and ca. 3 miles n. to Chico Meadow (Camp Lassen, BSC) on Scout Road. Plant growing along eastern edge of Chico Meadow. 1280 Comment
  CHSC90234  Dodecatheon clevelandii subsp. patulum Ross L. Jones 1989-2-25 4 Butte Ca. 100 m e of abandoned city dump bordered by Highway 32 and Humboldt Rd., immediate outskirts e of Chico. 60 Comment
  CHSC92570  Dodecatheon clevelandii subsp. patulum L. P. Janeway 2005-3-1 8338 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  CHSC52118  Dodecatheon hendersonii Gary R. Koses 1979-4-3 15 Butte 5 mi s of intersection of hwy 70 and Cherokee rd. E side of Cherokee rd. Comment
  UC991147  Dopatrium junceum J. M. Tucker 1953-8-28 2679 Butte Biggs Rice Experiment Station Comment
  CHSC31401  Downingia bella Paula J. Minton 1980-4-14 1 Butte 1 mi e of Chico, ca. 120 ft on n side of the Skyway. 70 Comment
  CHSC112888  Downingia bicornuta var. bicornuta Robin Carter; Sabrina Bell 2011-5-18 Butte Sacramento Valley. Ca 0.2 air mi E of Hwy 99 off NW edge of the Thermalito Afterbay, ca 450 ft NW of the levee road and just S of fenceline along rice fields. 41 Comment
  UC1244001  Downingia bicornuta var. bicornuta John H. Weiler and A. P. Nelson 1961-5-29 61244 Butte 5 mi s Chico (e side of U.S. Highway 99 E (bridge 12-125)) Comment
  UC725639  Downingia cuspidata A. A. Heller 1942-4-26 16436 Butte s of Oregon City road (summit of Table Mountain, a short distance s of the place where the road emerges from the timbered part); Table Mountain Comment
  SEINET10458517  Downingia ornatissima Lowell Ahart 1984-5-12 Ahart 4602 Butte T17N R4E. Peter Ahart Ranch, ca. 2.5 mi NE of Honcut, ca. 12 mi S of Oroville. Valley Grassland; 50 m. 50 Comment
  CAS-BOT-BC41346  Draba verna Lowell Ahart 1980-3-8 2032 Butte Honcut. Peter Ahart Ranch. 50 Comment
  CHSC35010  Draba verna var. verna R. E. Preston 1982-3-4 183 Butte N. Table Mtn., 20 ft e of Cherokee Rd. 402 Comment
  CHSC90037  Draba verna var. verna Mark Hietala 1990-3-20 1 Butte In a stream bed, ca. 2 mi e of Chico, between Hwy 32 and Humboldt Rd. Stream bed. 91 Comment
  SEINET10969181  Draperia systyla Mary Susan Taylor, Vernon H. Oswald 1985-5-30 Taylor 5516 Butte Trees Road between Hwy 70 and Coyote Gap, ca. 25 air mi NE of Oroville. Yellow Pine Forest. Comment
  CHSC94338  Drosera rotundifolia Lowell Ahart 2006-7-25 13065 Butte West part of a large meadow and bog, about 20 yard ... Field redacted by CHSC, contact the data manager for more information 1569 Comment
  CHSC99571  Dryopteris arguta L. P. Janeway 2008-6-22 9419 Butte Cascade Range Foothills. Upper Bidwell Park, Chico (a large generally natural area); just below junction of Pine Trail and Guardians Trail. 396 Comment
  JEPS104145  Dryopteris arguta Lowell Ahart 2003-6-30 10326 Butte Near the small stream, on the south side of Ponderosa Way, ca 2 mi (by road) sw of the Ponderosa Dam, ca 2 mi (air) nw of Forbestown. 490 Comment
  SEINET10899878  Dryopteris arguta Mary Susan Taylor 1980-4-18 Taylor 2518 Butte W side of Humbug Road, ca. 1 mi S of Nimshew. With J.D. Jokerst. 610 Comment
  CAS-BOT-BC536732  Duchesnea indica Lee Richardson 1939-6-3 s.n. Butte Established at Richardson's Springs Comment
  UCD101932  Dudleya multicaulis R. Curtis 1995-5-27 8 Butte 10 m above Bear Hole, Big Chico Creek, approx. 6 miles south of Bidwell Road in Upper Bidwell Park. Comment
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Apr 7 2018
  CHSC75995  Dysphania ambrosioides Lowell Ahart 1999-8-22 8183 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
  CHSC116589  Dysphania botrys L. P. Janeway 2015-7-20 11802 Butte Northern High Sierra Nevada. Plumas Nastional Forest; Forest Service rock quarry at the southern corner of Walker Plains, on the southwest side of Oroville-Quincy Hwy. 1539 Comment
  JEPS124153  Dysphania pumilio Lowell Ahart 2015-11-7 20618 Butte About 1/4 mile south of the end of Alternate 40, Dark Canyon, about 4 miles (air) south of Highway 70, about 8 miles (air) southeast of Paradise. Comment
  CHSC76310  Echinochloa colona Lowell Ahart 1999-9-21 8282 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
  CDA38790  Echinochloa crus-galli L. Ahart 2011-10-29 17727 Butte On the south side of Biggs Princeton Road, about 500 yards west of Riceton Highway, about 1 mile northwest of Biggs. Comment
  CHSC40910  Echinochloa crus-galli Lowell Ahart 1985-11-7 5240 Butte About 90 feet below the high water line of Lake Oroville, on the south side of the South Fork of the Feather River, where Sucker Creek flows into the river, about 1/2 mile west of the Ponderosa Dam. 274 Comment
  UCD61091  Echinochloa muricata P. B. Kennedy 1921-9-9 Butte Rice Station, Biggs. Comment
  CDA1986  Echinochloa muricata var. microstachya L. Ahart 1998-7-1 8031 Butte North Table Mountain. 50 yards north of a poor east west fence, about 3/4 mile northwest of the cow chute along Cherokee Road, about 7 miles (air) north of Oroville. Comment
  UCD37171  Echinochloa oryzicola var. mutica Beecher Crampton 1957-9-17 4626 Butte Butte County, 5 miles northwest of Biggs, Biggs Rice Experiment Station. Comment
  SEINET10465417  Echinodorus berteroi Mary Susan Taylor 1977-8-16 Taylor 1451 Butte Butte College Campus, ca. 15 mi S of Chico. With Marc Hayes. 61 Comment
  JEPS122234  Elatine Lowell Ahart 2014-4-26 19411 Butte On the south side of Butte City Highway (Highway 162), collected from the railroad to the east about 200 yards, east of the Rice Experiment Station. Comment
  UC1101557  Elatine ambigua Herbert L. Mason 1946-8-15 13051 Butte near caretaker's house (#833 Irrigation Ditch); Butte Sink, Greylodge Game Refuge Comment
  UCD150364  Elatine ambigua William Anderson 1964-8-15 s.n. Butte Richvale-Oroville Rd., rice field. Comment
  CHSC66357  Elatine chilensis Vernon H. Oswald 1996-6-20 7835 Butte Sacramento National Wildlife Refuge, Llano Seco Unit, U.S. Fish and Wildlife Service Parcel between 7 Mile Lane and the Sacramento River. 32 Comment
  CHSC40907  Elatine heterandra Lowell Ahart 1985-11-7 5231 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
  CHSC74724  Eleocharis B. Castro; L. Gehrung 1998-7-2 797 Butte Ca 6 air mi NW of Brush Creek, ca 1 mi SE of Hungry Hunt Peak, ca 50 ft N of USFS Rd 23N28 as it loops around a drainage. 1021 Comment
  UC398894  Eleocharis acicularis E. B. Copeland 1929-7-19 344 Butte Jonesville 1550 Comment
  SEINET7583520 Image available Eleocharis acicularis E. B. Copeland 1929-7-19 344 Butte Jonesville. 1550 Comment
  CHSC34061  Eleocharis bella L. Ahart; M. S. Taylor 1981-8-15 3030 Butte On banks of the West Branch of the Feather River, ca. 1.5 mi s of Snag Lake, ca. 9 mi n of Inskip. 1500 Comment
  CHSC78561  Eleocharis bella Lowell Ahart 2000-9-4 8684 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
  CAS-BOT-BC113565  Eleocharis bolanderi L. P. Janeway 1988-6-19 2822 Butte Small open seepy area along Honey Run Road 0.9 mi SW of Skyway. 411 Comment
  CHSC46300  Eleocharis coloradoensis Vernon Oswald 1989-5-23 3781 Butte Gray Lodge Wildlife Area, in the field se of the intersection of Rutherford Rd and the road to Parking Areas 12 and 13. 19 Comment
  CHSC94509  Eleocharis decumbens Lowell Ahart 2006-8-15 13181 Butte Bog, near the center of a large open meadow with bogs, about 70 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
  CHSC45172  Eleocharis engelmannii Lowell Ahart 1969-5-14 28 Butte Peter Ahart Ranch, about 2 miles north and 1/4 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC84012  Eleocharis engelmannii Lowell Ahart 2003-6-23 10302 Butte In a rice field, 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
  JEPS127225  Eleocharis macrostachya Lowell Ahart 2016-5-30 20893 Butte Peter Ahart Ranch, about 2 1/2 miles north and 1/2 mile east of Honcut, about 12 miles (air) south of Oroville. Comment
  SEINET10466798  Eleocharis macrostachya Mary Susan Taylor 1978-9-8 Taylor 1878 Butte Along flood control slough, ca. 4 mi N of Chico, along Hwy 99. 61 Comment
  UCSB63783  Eleocharis macrostachya Ahart, Lowell 1998-7-18 Butte T20N, R4E, southeast 1/4 Section 8; along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 408 Comment
  CHSC78300  Eleocharis montevidensis Lowell Ahart 2000-6-21 8497 Butte In a small seep, south of Parking Area P, north of the Salmon Hole, Upper Bidwell Park, about 3 1/3 miles (air) northeast of Manzanita Avenue, Chico. 106 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
  CDA19732  Eleocharis obtusa unknown June 1957 Butte Northern California; No other data provided. 0 Comment
  JEPS98547  Eleocharis pachycarpa Lowell Ahart 2000-7-18 8597 Butte On the margins of a small pond, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. 42 Comment
  CAS-BOT-BC113211  Eleocharis parishii Lowell Ahart 1988-7-24 6125 Butte About 100 yards south of the intersection of Forbestown Road and Black Bart Road, 731 Comment
  CAS-BOT-BC113213  Eleocharis parishii Copeland 1903-5-30 3280 Butte Chico Comment
  CAS-BOT-BC112064  Eleocharis quinqueflora Lowell Ahart 1979-5-11 s.n. Butte Peter Ahart Ranch. Honcut. 50 Comment
  SEINET7587010 Image available Eleocharis quinqueflora Lowell Ahart 2000-5-28 8408 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 1/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 37 Comment
  SEINET3450856  Eleocharis rostellata Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2003-5-27 10224 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
  CAS-BOT-BC227299  Elymus elymoides Lowell Ahart 1985-6-30 5091 Butte 100 yards south of the road to the Forbestown Res., south of the Forbestown Ditch, about 2 1/2 miles north-east of Forbestown 883 Comment
  UCD61510  Elymus elymoides L. E. Hazeltine 1916-7-16 s.n. Butte Appleton. Comment
  CHSC31719  Elymus glaucus L. Ahart 1977-6-16 1420 Butte On banks of North Honcut Creek, Peter Ahart Ranch, Honcut. 50 Comment
  CAS-BOT-BC203419  Elymus glaucus subsp. glaucus Lowell Ahart 1988-7-31 6165 Butte About 1 air mile north-east of Bald Mountain, about 4 1/2 air miles north-east of Stirling City 1676 Comment
  CHSC68915  Elymus stebbinsii subsp. septentrionalis Lowell Ahart 1997-7-11 7744 Butte Road cut, on the north side of the dirt road, southeast of Cold Creek, about 2 miles (air) southwest of Bald Mountain, about 9 miles by road from Stirling City, or about 2 miles (air) northeast of Stirling City. 1219 Comment
  CHSC36554  Elymus triticoides L. Ahart 1982-7-10 3668 Butte Ca. 1/12 mi e of checking station, Graylodge Wildlife Refuge Station, on n side of road. 35 Comment
  CHSC74161  Elytrigia intermedia subsp. intermedia B. Castro 1996-8-7 706 Butte French Fire. Ca 2 air mi NNW of town of Brush Creek, on slope of Mosquito Ridge, on S side of USFS Rd 22N96X. 822 Comment
  CHSC36547  Elytrigia pontica subsp. pontica L. Ahart 1982-7-10 3678 Butte Near dirt road, ca. 1/4 mi ne of Graylodge Wildlife Refuge Headquarters, ca. 12 mi sw of Gridley. 35 Comment
  CHSC74040  Elytrigia pontica subsp. pontica B. Castro 1998-7-8 805 Butte Sunset Hill Meadow. Ca 2 air mi W of Forbestown, ca. 0.2 mi S of Sunset Hill fire lookout and 300 ft S of Forbestown Rd, at headwaters of New York Creek. At end of old dirt rd at E edge of old homestead site. Below footpath at upper edge of meadow. 929 Comment
  CHSC10547  Enemion occidentale Lowell Ahart 1970-3-18 Butte Swede's Flat Road, near Bangor. 121 Comment
  CAS-BOT-BC410231  Enemion occidentale Flower Shaw 1929-4-1 s.n. Butte Unspecified. Comment
  SEINET6635565 Image available Epilobium angustifolium subsp. circumvagum H. F. Copeland 1928-1 443 Butte neighborhood of Jonesville; above Jones Creek 1829 Comment
  CHSC24805  Epilobium brachycarpum E. L. Rilla 1976-9-18 29 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
  JEPS127038  Epilobium campestre Lowell Ahart 2016-5-31 20906 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. Comment
  CAS-BOT-BC166844  Epilobium canum subsp. latifolium John Thomas Howell 1951-8-19 28162 Butte Above Arch Rock Tunnel, on Feather River 457 Comment
  CHSC102957  Epilobium ciliatum subsp. ciliatum Lowell Ahart 2009-7-9 16003 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
  JEPS95032  Epilobium ciliatum subsp. ciliatum Lowell Ahart 1997-10-20 7926 Butte 3 air mi nw of Sly Creek Reservoir Dam (on w side of the sharp bend in South Fork of Feather River, about 1/4 mi n of the bridge across river, about 3/4 mi n of Golden Trout Crossing); South Fork of Feather River 914 Comment
  UCD105781  Epilobium ciliatum subsp. ciliatum L. E. Hazeltine 1916-7-16 s.n. Butte Appleton. Comment
  JEPS95944  Epilobium cleistogamum Lowell Ahart 1999-5-21 8071 Butte 50 yards north of Evans Reimer Road; about 7/8 mile east of Pennington Road; about 5 miles (air) southwest of Gridley 21 Comment
  CHSC70343  Epilobium minutum L. Ahart 1982-6-4 3536 A Butte 1.5 mi e of Camp 18, ca. 8 mi e of Feather Falls. 1000 Comment
  JEPS108857  Epilobium minutum Lowell Ahart 2006-5-10 12623 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 385 Comment
  CHSC64200  Epilobium oregonense S. C. Morey 1983-7-25 627 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  RSA0045590  Epilobium pallidum Lowell Ahart 2012-5-31 18124 Butte About half way between Salmon Hold trail and Parking Area O, Upper Bidwell Park. 122 Comment
  CHSC116290  Equisetum hyemale subsp. affine Lowell Ahart 2015-10-16 20552 Butte On west side of Feather River, about half way of and east of One Mile Pond, about 6 miles (air) east of Biggs. 26 Comment
  JEPS110236  Equisetum hyemale subsp. affine Lowell Ahart 2006-9-13 13323 Butte South edge of the North Fork of the Feather River, about 100 yards west of the Cresta Power House, north side of Highway 70, about 2 3/4 miles northeast of Pulga, about 23 miles (air) northeast of Oroville 437 Comment
  CHSC63793  Equisetum laevigatum Gerald A. Winter 1989-4-15 16 Butte Ca. 1 yd from n side of Big Chico Creek, ca. 100 yds e of diversion dam but before salmon hole. 60 Comment
  JEPS120949  Equisetum laevigatum Lowell Ahart 2013-4-20 18551 Butte Wilson Creek, about 100 yards SW of the oak trees, about 1/2 mile N of the barn, about 3/4 mile N of the Honcut Cemetery, about 3.75 air miles NE of Honcut. Comment
  CAS-BOT-BC204454  Eragrostis cilianensis Lowell Ahart 1979-10-2 s.n. Butte In Honcut. The area is at the intersection on Lower Honcut Road and Smullin Road 33 Comment
  CHSC45212  Eragrostis cilianensis Lowell Ahart 1984-10-5 4813 Butte In pasture fields, Peter Ahart Ranch, about 1 1/2 miles north and 1 3/4 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC49237  Eragrostis cilianensis Vernon Oswald 1987-7-6 3095 Butte Butte Creek Preserve on the s side of Butte Creek ca. 0.25 mi e of the Hwy 99 bridge. 67 Comment
  CHSC49542  Eragrostis cilianensis V. Oswald; R. Cunningham 1988-8-6 3682 Butte In s Chico, s of Park Ave., near the end of Paseo Campaneros. In the garden of Ruth and Glenn Cunningham. 64 Comment
  UC204882  Eragrostis cilianensis A. A. Heller 1914-6-2 11478 Butte 8 mi n Oroville Comment
  JEPS120091  Eragrostis curvula Lowell Ahart 2012-6-2 18126 Butte On the south side of Highway 70, about 1/2 mile southwest of Pentz Magalia Highway. Comment
  CHSC97776  Eragrostis hypnoides Lowell Ahart 2007-10-31 14522 Butte West of the official parking area, strand of Lake Oroville, Foreman Creek Area, about 1 mile south of Highway 162 (Oroville Quincy Road), about 7 miles (air) northeast of Oroville. 224 Comment
  UCD169455  Eragrostis pectinacea var. pectinacea Lowell Ahart 2004-9-14 11402 Butte East part of Palermo, on the east side of Palermo Honcut Highway, about 20 feet south of Palermo Road. 57 Comment
  SEINET10555837  Eragrostis pilosa Mary Susan Taylor 1975-10-3 Taylor 941 Butte Ca. 1/4 mile N of the Washout, between River Road and the Scaramento River, ca. 10 mi W of Chico. 37 Comment
  UCD65667  Eragrostis pilosa var. pilosa Beecher Crampton 1963-9-9 6884 Butte Honcut. Comment
  UCD65670  Eragrostis pilosa var. pilosa Beecher Crampton 1957-9-17 4620 Butte 5 miles northwest of Biggs, Biggs Rice Exper. Station. Comment
  CHSC30045  Eremogone cliftonii Joan P. Warner 1977-4-22 1 Butte Ca. 2 km sw of intersection of North Fork Feather River and Butte-Plumas county line, ca. 23 km nw of Paradise, ca. 80 m s of river. 490 Comment
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  JEPS108151  Eremogone cliftonii L. P. Janeway, C. Christofferson, S. Mackey Hillaire, M. Brown 2005-5-11 8388 Butte Northern High Sierra Nevada. Plumas National Forest; upper slope overlooking Lockerman Creek, 0.7 km east of Lockerman Creek and 1.2 km east-northeast of its confluence at Camp Creek 1234 Comment
  CHSC41870  Ericameria arborescens Lowell Ahart 1986-10-16 5406 Butte Along Ponderosa Way, about 1/2 mile south of Lumpkin Road, about 3 miles south-west of Feather Falls. 609 Comment
  UC699659  Ericameria nauseosa var. speciosa E. B. Copeland Butte Butte Meadows Butte Comment
  CAS-BOT-BC296824  Erigeron divergens A. A. Heller; H. E. Brown 1902-5-6 5463 Butte Berry Canyon near Clear Creek Comment
  UC426985  Erigeron inornatus var. inornatus E. B. Copeland 1930-8-6 490 Butte Jonesville 1550 Comment
  CAS-BOT-BC295775  Erigeron petrophilus var. sierrensis John Thomas Howell 1951-8-19 28161 Butte 2 miles west of Pulga 365 Comment
  POM34274  Erigeron philadelphicus Mrs. R. M. Austin, C. C. Bruce 1898-05 2077 Butte Iron Canyon. Comment
  CHSC110976  Eriobotrya deflexa Lowell Ahart; Susan Bazell, Josephine Guardino, Wes Dempsey 2012-7-5 18269 Butte Cedar Grove, south of parking area, Lower Bidwell Park, Chico. 71 Comment
  CHSC27256  Eriobotrya japonica P. Moyer 1971-2-1 79 Butte CSUC Campus. S bank Chico Ck., at base of sycamore tree, w of L.S.-Ed. Psych. Bridge. 60 Comment
  HSC97192  Eriochloa acuminata var. acuminata L. Ahart 2004-8-30 11397 Butte South side of O'Brien Rd., about 1 1/2 miles (air) southeast of Gridley. 28 Comment
  CAS-BOT-BC216046  Eriodictyon californicum A. A. Heller 1915-4-20 11856 Butte 7 miles below Centerville in the Sierra foothills on the banks of Butte Creek 76 Comment
  CHSC39792  Eriodictyon californicum Eloise Gallatin 1935-5-17 Butte Fern Bank Comment
  RSA769683  Eriodictyon californicum L. Ahart 2009-4-22 15591 Butte W side of Guardians Trail, about 100 yards N of Pine Trail, Upper Bidwell Park, W of the intersection of Highway 32 and Ten Mile House Road, about 10 miles NE of Chico. 382 Comment
  CHSC1338  Eriogonum luteolum var. luteolum R. M. Staley 1952-7-13 Butte Ponderosa road N. of De Sabla. Comment
  CHSC20968  Eriogonum luteolum var. luteolum M. S. Taylor 1975-9-12 921 Butte Abundant along railroad tracks, ca. 1/2 mi n of Magalia. 609 Comment
  CAS-BOT-BC263693  Eriogonum luteolum var. pedunculatum John Thomas Howell 1959-9-20 34695 Butte 9 mi. NE of Oroville on Feather River Highway, Sierra Nevada Comment
  CHSC34041  Eriogonum nudum var. oblongifolium L. Ahart 1981-7-7 2930 Butte Along the edge of the dirt rd ca. 1/2 mi w of the Forbestown Reservoir, ne of Forbestown. 750 Comment
  CHSC30848  Eriogonum nudum var. pubiflorum M. S. Taylor 1980-9-12 3326 Butte At jct of Hwy 32 and Ponderosa Way, nw corner, ca. 1.5 mi n of Forest Ranch. 609 Comment
  UC426904  Eriogonum nudum var. pubiflorum E. B. Copeland 1930-7-16 412 Butte along Butte Creek Jonesville, Butte Creek 1500 Comment
  CHSC45487  Eriogonum roseum Lowell Ahart 1975-9-4 982 Butte Along the edges of Ponderosa Way, about 2 miles south-west of Feather Falls, about 1 1/2 miles north-west of the Ponderosa Dam. 396 Comment
  UC478525  Eriogonum spergulinum var. reddingianum E. B. Copeland 1931-7-11 633 Butte ridge between Jones Creek and North Willow Creek; Jonesville 1700 Comment
  CHSC112071  Eriogonum umbellatum var. ahartii L. P. Janeway 2014-8-13 11570 Butte Northern High Sierra Nevada. Plumas National Forest; 'Magalia Serpentine' (McNab Cypress proposed Special Interest Area); about 2/3 of the way down the steep slope between Coutolenc Road and West Branch Feather River (and the diversion dam). 540 Comment
  SEINET11932639  Eriogonum umbellatum var. speciosum M. S. Taylor 1981-1 4280 Butte N side of Feather River Hwy 70 at Pulga bridge, on large outcrop, ca 20 mi NE of Oroville 488 Comment
  CHSC45371  Eriogonum ursinum var. ursinum Vernon Oswald 1983-8-17 990 Butte On Humboldt Peak, n-e of Jonesville. 2158 Comment
  LA203593  Eriophyllum lanatum E. B. Copeland; 1930-7-11 492 Butte Jonesville, near the head of North Willow Creek 1550.0 Comment
  SD5694  Eriophyllum lanatum E. B. Copeland 1930-7-11 Butte Jonesville 1550 Comment
  SEINET10474638  Eriophyllum lanatum Mary Susan Taylor, Vernon H. Oswald 1985-5-30 Taylor 5519 Butte outcrop, 0.6 mi S of Coyote Gap, on open knoll at loop in French Creek Road, ca. 25 air mi NE of Oroville. Comment
  CAS-BOT-BC308156  Eriophyllum lanatum var. grandiflorum Lewis S. Rose 1945-5-12 45044 Butte Richardson Springs 304 Comment
  CHSC38346  Eriophyllum lanatum var. grandiflorum Vernon Oswald 1983-4-25 389 Butte Upper Bidwell Park, Chico, on the north rim ca. 0.4 mi w of the power lines. 182 Comment
  RSA177045  Eriophyllum lanatum var. grandiflorum Peter H. Raven 1963-5-8 18359 Butte Along road to Cohasset north of Chico Comment
  UC1224621  Eriophyllum lanatum var. grandiflorum Peter H. Raven 1963-5-8 18359 Butte along road to Cohasset n of Chico Comment
  SEINET10475231  Eriophyllum lanatum var. grandiflorum Mary Susan Taylor 1980-4-19 Taylor 2535 Butte S side of Humbug, NE of Centerville. With J.D. Jokerst. 366 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
  HSC27262  Erodium botrys J. P. Smith 1972-3-23 5095 Butte 1.6 mi. from junction with Hwy. 99 on road to Paradise Comment
  CHSC101267  Erodium cicutarium Lowell Ahart 2009-4-3 15528 Butte Along margins of the gravel road, east of the Cedar Grove parking area in Lower Bidwell Park, Chico. 67 Comment
  CHSC25463  Erysimum capitatum var. capitatum Hayes; Warner 1977-7-11 96 Butte Near Humboldt Summit (near Butte-Tehama county line), ca. 200 m down Pacific Crest Trail from the summit towards Humboldt Peak. 2011 Comment
  CHSC513  Erysimum capitatum var. capitatum R. M. Staley 1953-7-17 Butte Canyon Creek. 609 Comment
  CHSC94652  Erythranthe floribunda Lowell Ahart 2006-9-28 13374 Butte On the east side of the North Fork of the Feather River, on the west side of Highway 70, about 50 yards southwest of the Shady Rest Area south of the Arch Rock Tunnel. 445 Comment
  CAS-BOT-BC153869  Erythranthe glaucescens Helen M. Edwards 1917-6-1 s.n. Butte De Sabla Comment
  CHSC44785  Erythranthe glaucescens R. Banchero 1980-3-21 73 Butte Along Hwy 32, 4.2 mi N of Humbolt Rd, Ca 0.5 mi N of Ten Mile House. 487 Comment
  CAS-BOT-BC292476  Erythranthe glaucescens Grace Kermode 1899-6-9 s.n. Butte Sandy Gulch, Chico. Comment
  SEINET13754621 Image available Erythranthe glaucescens Lewis S. Rose 1967-1 67077 Butte 1 mi S of Pulga, North Fork Feather River 427 Comment
  CHSC54452  Erythranthe guttata Vernon H. Oswald; Lowell Ahart 1991-7-15 4741 Butte Milsap Bar Rd (Forest Rd 22N62), 6.4 miles west of Feather Falls-Little Grass Valley Rd (Forest Rd 22N94), ca 5.5 miles (air) east-northeast of Brush Creek. 845 Comment
  CHSC65903  Erythranthe guttata Vernon H. Oswald 1996-4-20 7399 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. 32 Comment
  SEINET8399965  Erythranthe moniliformis E. B. Copeland 1929-7-13 463 Butte Jonesville. 1550 Comment
  CHSC44737  Erythranthe nasuta R. Banchero 1980-3-19 69 Butte Along the Skyway 5.5 mi E of Chico, Ca 6 mi SW of Paradise. 304 Comment
  CHSC44984  Erythranthe nasuta Martin Devanna 1987-4-3 8 Butte Ca. 4 mi ne of Chico. N bank of Big Chico Creek. 198 Comment
  CHSC64223  Erythranthe primuloides S. C. Morey 1983-7-28 631 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humbolt Rd. at Butte Meadows. 1292 Comment
  SEINET10469671  Erythronium cliftonii Mary Susan Taylor, D. Hemphill 1981-3-18 Taylor 3416 Butte T22N R5E ne sec 6. Pulga SW quad. Both sides of Hwy 70 at Pulga bridge, on serpentine outcrops, ca. 20 air mi ne of Oroville. 1600 ft. 488 Comment
  SEINET12047245  Erythronium cliftonii M. S. Taylor, Hemphill, D. 1981-1 3422 Butte from bridge crossing West Branch Feather River, ca 0.5 mi E & S along Ponderosa Way (Jordan Hill Rd) 579 Comment
  CHSC32652  Erythronium multiscapideum M. S. Taylor; D. Hemphill 1981-3-18 3422 Butte N side of West Branch Feather River, just w of bridge on Ponderosa Way (Jordan Hill Rd), ca. 1 mi ne of Magalia. 487 Comment
  CHSC88607  Erythronium multiscapideum Linnea Hanson 1983-4-6 181 Butte Plumas National Forest. Hwy. 70, behind Cal Trans Maint. Station. 609 Comment
  CAS-BOT-BC504519  Erythronium multiscapideum Lois E. Edwards 1917-4-1 s.n. Butte De Sabla 548 Comment
  CAS-BOT-BC504534  Erythronium multiscapideum Lowell Ahart 1977-3-28 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  SEINET10899973  Erythronium purpurascens Austin AUSTIN s.n. Butte Butte or Plumas County Comment
  CAS-BOT-BC110542  Eschscholzia John Thomas Howell 1955-6-15 30506 Butte West Branch of North Fork of Feather River. 182 Comment
  CHSC33140  Eschscholzia caespitosa J. D. Jokerst 1979-3-20 1155 A Butte Table Mountain. Top of North Table Mt, above the waterfalls at the west edge of the mountain S fork of Coal Creek Canyon. Comment
  CHSC39225  Eschscholzia caespitosa M. S. Taylor; K. Tharp 1983-3-11 5229 Butte Along abandoned part of Hwy 162 which leads into water at n end of Bidwell Bar Bridge, ca. 6 air mi nne of Oroville. Comment
  CAS-BOT-BC402638  Eschscholzia caespitosa A. A. Heller 1914-4-16 11296 Butte On the Chico-Centerville road 8 miles from Chico Comment
  CAS-BOT-BC402966  Eschscholzia californica Mrs. C. C. Bruce 1897-5-1 2022 Butte Fields near Chico Comment
  CHSC1198  Eschscholzia californica E. Canfield 1904-5-23 Butte Hooker Oak Field. 76 Comment
  POM125743  Eschscholzia lobbii C. C. Bruce 1897-04 2027 Butte Near Chico Comment
  CAS-BOT-BC419505  Eschscholzia lobbii A. A. Heller 1914-3-7 11188 Butte Hills 8 miles north of Oroville Comment
  JEPS122246  Euphorbia maculata Lowell Ahart 2014-9-23 19864 Butte Parking lot of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. Comment
  CHSC26766  Euphorbia peplus P. Moyer 1972-3-4 107 Butte CSUC Campus. Next of Chicano Center, 2nd and Ivy. 60 Comment
  CHSC44491  Euphorbia peplus Lowell Ahart 1988-4-29 5967 Butte Along the edges of North Honcut Creek, about 2 miles north and 3 miles east of Honcut, on the Joie Osgood Ranch, about 12 miles south-east of Oroville. 68 Comment
  CHSC48380  Euphorbia peplus Vernon Oswald 1987-3-26 2297 Butte Butte Creek Reserve on the e side of the Skyway and n side of Butte Creek. Between some ponds in dredger tailings. 73 Comment
  CHSC5981  Euphorbia peplus M. MacArthur 1968-6-12 145 Butte Ca. 50 ft. NW of Biology Stockroom and 10 SW of PSA bld., Chico State College campus. 60 Comment
  SD126343  Euphorbia serpillifolia Lowell Ahart 1985-10-12 5200 Butte End of Nelson Bar Road, south of Kunkle Reservoir, South of Paradise 298 Comment
  SEINET10841056  Euphorbia serpillifolia Mary Susan Taylor 1978-9-8 Taylor 1887 Butte Along flood control slough, ca. 4 mi N of Chico, along Hwy 99. 61 Comment
  CHSC9139  Euphorbia spathulata M. P. Coffeen 1970-4-14 16 Butte 100 yds. S. of Horseshoe Lake in Bidwell Park, Chico. 91 Comment
  UC600725  Eurybia integrifolia H. F. Copeland 1932-8-21 Butte near, Jonesville Kennedy's cabin 487 Comment
  JEPS95021  Eurybia radulina Lowell Ahart 1997-9-6 7892 Butte about 5 air mi n of Concow Reservoir (on w side of a logging road, about 1 1/2 mi n of Oakway, about 3 air mi nw of Flea mountain, about 3 air mi ne of Sawmill Peak) 762 Comment
  CAS-BOT-BC312200  Eurybia radulina Lowell Ahart 1976-9-21 s.n. Butte 1 mile north of Golden Trout Crossing on cut bank of road that ends at Feather Falls 762 Comment
  CHSC49545  Festuca arundinacea Vernon Oswald 1985-5-13 1756 Butte Upper Bidwell Park, Chico, on the s perimeter of the Police Pistol Range. 91 Comment
  JEPS122213  Festuca myuros var. hirsuta Lowell Ahart 2014-4-25 19404 Butte On the west side of Richvale South Highway, south of the intersection of Richvale West Road and Richvale South Highway, Richvale. Comment
  CHSC45132  Fimbristylis autumnalis Vernon Oswald 1987-7-23 3148 Butte Feenstra's Riverview Orchard located at the w end of Cana Rd. between the s half of Cana Lake (Dicus Slough) and the Sacramento River. 48 Comment
  CHSC50409  Floerkea proserpinacoides Vernon Oswald 1990-6-26 4320 Butte Near the headwaters of the north branch of Willow Creek, 0.6 mi west of Humbug Rd via the logging road just south of Cold Springs, ca. 0.5 mi (air) southwest of Humbug Summit. 1969 Comment
  CHSC98910  Foeniculum vulgare L. P. Janeway 2007-12-11 9222 Butte Northern Sierra Nevada Foothills. Southeast side Feather River between Table Mountain Blvd and Fish Barrier Dam. 52 Comment
  SD2199  Fragaria virginiana E. B. Copeland 1929-7-16 373 Butte Jonesville, in low woods 1550 Comment
  CAS-BOT-BC437081  Fragaria virginiana subsp. platypetala H. F. Copeland 1929-6-10 1206 Butte Jonesville 1524 Comment
  CAS-BOT-BC437083  Fragaria virginiana subsp. platypetala E. B. Copeland 1929-7-16 373 Butte Jonesville 1550 Comment
  SEINET7417535 Image available Frangula californica subsp. californica A. A. Heller 1915-1 11882 Butte canyon of Chico Creek 5 mi E of Chico Comment
  CDA42878  Frangula californica subsp. tomentella L. Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-17 18072 Butte On the sides of a horse trail, about 50 feet south of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  SEINET10454869  Frasera albicaulis subsp. nitida Mary Susan Taylor 1980-6-14 Taylor 2880 Butte T21N R5E ne sec 25. Big Bend quad. On N sid eof Zink Road, near entrance to Zink Ranch, ca. 2 mi E of Lake Madrone; Yellow Pine Forest. 762 Comment
  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
  CAS-BOT-BC223386  Fraxinus dipetala A. A. Heller 1915-4-12 11815 Butte Hills 14 miles northeast of Chico near Rock Creek Comment
  CHSC87431  Fraxinus dipetala R. D. Fischer 2004-3-22 94 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Collected on Guardian Trail, 400 ft south of its junction with 10 Mile House Road. Along trail, and along 10 Mile House Road. 403 Comment
  CHSC38560  Fraxinus latifolia Vernon Oswald 1983-5-23 544 Butte Upper Bidwell Park, Chico, on the e bank of Chico Creek near the east boundary of the park. 207 Comment
  CAS-BOT-BC136070  Fritillaria affinis C. C., Mrs. Bruce 1897-2-1 2024 Butte Canyons near Chico Comment
  CAS-BOT-BC130318  Fritillaria eastwoodiae Frances Brown 1935-5-1 s.n. Butte Near Durham Comment
  CHSC33570  Fritillaria eastwoodiae M. S. Taylor 1981-4-27 3559 Butte Ridge between 21N33 and 21N80, ca. 1 mi sw of Bald Rock Rd, ca. 0.5 mi n of Zink, ca. 2 mi sw of Brush Creek. 1005 Comment
  CHSC38880  Fritillaria recurva Vernon Oswald 1983-3-6 121 Butte Upper Bidwell Park, Chico, ca. 50 ft w of the w entrance to Parking Area S (Brown's Hole). 231 Comment
  CAS-BOT-BC508145  Fritillaria recurva Carl Purdy 1938-1-1 s.n. Butte Forbestown Rd. out of Oroville Comment
  SEINET10905360  Fritillaria recurva Mary Susan Taylor 1981-5-21 Taylor 3784 Butte T23N R5E south central border sec 8, Pulga SW quad. Jct of Camp Creek and Rd 23N10, ca. 4 mi N of Pulga on Feather River Hwy 70. Granite soils; Yellow Pine Forest; 3300 ft. 1006 Comment
  CHSC99097  Fumaria officinalis Elena Alfieri 2008-5-19 Butte Sacramento Valley. Lower Bidwell Park, Chico, within the Arroyo Chico Land Grant. Located on a shaded, southeast-facing slope overlooking the Big Chico Creek picnic area, and adjacent to Wildwood road (just before it dead ends); north side of Lindo Channel near its beginning at Big Chico Creek. 85 Comment
  CHSC109850  Galium bolanderi L. P. Janeway 2012-6-23 10886 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
  UCD40396  Galium californicum Rodney Gale Myatt 1971-6-13 729 Butte 1 mi. north of Inskip. Skyway Road, north of Paradise. Road between Butte Meadows and Magala. Comment
  JEPS107756  Galium divaricatum Lowell Ahart 2005-5-11 11797 Butte On the bottom of a small vernal pool, south part of North Table Mountain, about 300 yards northwest of the poor dirt road off of Cherokee Road, about 200 yards south of the rim into Beatson Hollow, about 7 miles (air) north of Oroville 354 Comment
  SEINET10968838  Galium divaricatum Mary Susan Taylor 1980-5-24 Taylor 2737 Butte Peter Ahart Ranch, Honcut. 50 Comment
  SEINET10836827  Galium grayanum Mary Susan Taylor 1980-8-2 Taylor 3202 Butte T27N R5E center sec 32, Jonesville quad. Humboldt Peak, N tip of the county. 2155 Comment
  NY131444  Galium grayanum var. grayanum A. A. Heller 1914-8-7 11668 Butte Summit east of Jonesville. 2133.6 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
  RSA107820  Galium nuttallii var. tenue L. S. Rose 1955-6-14 55095 Butte Magalia. 732 Comment
  CHSC111120  Galium parisiense Lowell Ahart 2012-5-20 18096 Butte Southeast part of Upper Bidwell Park, northeast of Chico. Comment
  CHSC116994  Galium parisiense Lowell Ahart 2016-6-4 20925 Butte On the north side of Lumpkin Road, about 100 yards north of McCabe Creek, about 3 miles (air) west of Forbestown. 387 Comment
  JEPS110290  Galium parisiense Lowell Ahart 2006-6-9 12651 Butte On the east side of Bardees Bar Road, south of the small stream, about 1/4 mile southwest of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga 403 Comment
  UCD121893  Galium porrigens George F. Hrusa 1990-4-4 7644 Butte Throughout SE to NE side of North Butte. 350 Comment
  UC1586557  Galium tricornutum Lowell Ahart 1991-5-8 6649 Butte about 2 1/4 mi n and 1/2 mi e Honcut (about 12 mi s of Oroville); Peter Ahart Ranch 36 Comment
  UC1523190  Galium trifidum M. S. Taylor and Lowell Ahart 1981-8-15 4187 Butte ca. 14 mi ne Stirling City (e side of Humbug Rd, meadow on n side of lake); Jonesville SW Quad, Snag Lake, Montane Meadow 1737 Comment
  CHSC11819  Galium trifidum var. pacificum E. B. Copeland 1930-7-16 476 Butte Jonesville. 1500 Comment
  CHSC51011  Galium trifidum var. pacificum Lowell Ahart 1990-7-2 6535 Butte Near McCabe Creek, about 1/2 mile south-west of the Enterprise Bridge across Lake Oroville. 243 Comment
  CHSC52399  Garrya fremontii Dena Gracey 1979-3-22 22 Butte Northeast of Chico 10 mi on hwy 32, off Crown Point Rd 5 ft. 548 Comment
  CHSC69045  Garrya fremontii Lowell Ahart 1997-8-1 7759 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
  LA40341  Garrya fremontii E. B. Copeland; 1932-7-27 667 Butte Jonesville 502 Comment
  SBBG583  Gastridium phleoides A. A. Beetle 1941-6-27 2744 Butte 2 mi N of Lone Pine Forest Guard Stn, St Hwy 32 Comment
  UCD66574  Gastridium phleoides A. A. Heller 1914-6-2 11474 Butte 8 miles north of Oroville. Comment
  SEINET10559582  Gastridium phleoides A. Arthur Heller 1902-5-15 Heller 5555 Butte Near Biggs. Comment
  SEINET10790827  Gastridium ventricosum Lowell Ahart 2003-6-20 Ahart 10295 Butte T17N, R4E, southeast 1/4 Section 3. Normal size plants, on dry soil, in open pasture fields, Peter Ahart Ranch, about 1 1/2 miles north and 2 miles east of Honcut, about 12 miles southeast of Oroville. 46 Comment
  JEPS108157  Gaultheria ovatifolia L. P. Janeway 1994-7-19 4696 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
  CHSC37447  Gayophytum heterozygum R. A. Schlising; R. Banchero 1980-7-7 3851 Butte E of village of Feather Falls at Lumplin Ridge, along Lumpkin-La Porte Road and 0.2 mi W of jct with road to Golden Trout Crossing. 1280 Comment
  JEPS121941  Gayophytum racemosum Lowell Ahart 2014-7-7 19602 Butte On the south side of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  CHSC3174  Genista monspessulana Robert D. Briggs 1966-4-23 RE- 129 Butte Mesquete Jct, Reservoir, 6 miles due north of Magalia. Comment
  CHSC11982  Gentianopsis simplex E. B. Copeland 1930-8-2 440 Butte Jonesville. In two meadows. 1500 Comment
  CHSC63817  Gentianopsis simplex S. C. Morey 1983-7-23 593 Butte Cherry Hil Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  RSA0028178  Geranium carolinianum L. Ahart 2009-4-26 15649 Butte Upper Bidwell Park: on N side of Ten Mile House Road, about 100 yards W of the intersection of Hwy 32 and Ten Mile House Road, about 10 miles NE of Chico. 462 Comment
  CDA38823  Geranium dissectum L. Ahart 2012-4-3 17926 Butte 20 yards north of the table at the old homestead, about 20 yards southeast of the intersection of the South Rim Trail and Ten Mile House Road, about 5/8 mile west of Highway 32, about 9 miles (air) northeast of Chico, south part of Upper Bidwell Park. Comment
  UCD103375  Geranium dissectum R. N. Raynor; H. A. Hannesson 1941-5-9 s.n. Butte Feather River, 4 mi. S. of Oroville. Comment
  CDA13726  Gilia capitata subsp. mediomontana G. F. Hrusa, T. D. Wilfred 1997-6-27 13904 Butte Sierra Nevada; Feather Falls/Cascade Rd. to USFS 21N22Y, 1 km. E to summit. Comment
  CHSC52103  Gilia capitata subsp. pedemontana Steven Triano 1987-4-6 29 Butte Ca. 6 ft n of Honey Run Rd. ca. 3.0 mi e of the Skyway in se Chico. 79 Comment
  JEPS108849  Gilia capitata subsp. pedemontana Lowell Ahart 2006-5-8 12607 Butte North of Phantom Falls, about 3/4 mile northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 384 Comment
  JEPS115669  Gilia capitata subsp. pedemontana Lowell Ahart 2009-5-30 15784 Butte North of a broad open drainage in oak woodland, about 100 yards north of the dirt road which is Ten mile House Road, Upper Bidwell Park, about 1/2mile (air) west Highway 32, about 10 miles northeast of Chico 269 Comment
  RSA21312  Gilia capitata subsp. pedemontana Carl B. Wolf 1937-5-13 8657 Butte Sierra Nevada Foothills, W side of So. Honcut Creek, 2 6/10 mi E of Bangor. 213 Comment
  CHSC103958  Githopsis pulchella subsp. campestris Lowell Ahart 2010-5-23 16736 Butte On the west side of Pine trail, about 80 yards west of Highway 32, about 9 miles (air) northeast of Chico. 478 Comment
  JEPS28832  Githopsis pulchella subsp. campestris L. R. Heckard with R. Bacigalupi 1962-6-1 1306 Butte ca. 3 mi. n.w. Paradise (along Honeyrun rd.) 243 Comment
  SEINET10873414  Githopsis pulchella subsp. campestris A. Arthur Heller, H. E. Brown 1902-5-14 Heller 5548 Butte Berry Canyon, near Clear Creek Comment
  CHSC32128  Githopsis specularioides L. Ahart 1973-5-6 213 Butte Swedes Flat Rd, near Bangor. 457 Comment
  SEINET10537439  Glinus lotoides Lowell Ahart 1990-10-5 Ahart 6628 Butte On the bottom of McCabe Creek, below the high water line of Lake Oroville, about 1/4 mile south-west of the Enterprise Bridge across Lake Oroville. Foothill Woodland (destroyed). T19N R6E NW/S7. 229 Comment
  CHSC88067  Glycyrrhiza lepidota R. D. Fischer 2004-6-12 153 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located in large meadow at the bottom of 10 Mile House Road, e. side of road and Big Chico Creek, near the gated end of the park property. 220 Comment
  SEINET10475276  Gnaphalium beneolens Lowell Ahart 1983-9-17 Ahart 4435 Butte Along edge of dirt road, ca. 2.5 mi s of Stirling City. Yellow Pine Forest; 1100 m. 1100 Comment
  CHSC113155  Gnaphalium palustre Lowell Ahart 2013-11-13 19228 Butte Below the high water line of Lake Oroville, along the sides of Sucker Creek, about 30 yards north of the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 244 Comment
  CHSC90820  Gnaphalium palustre Lowell Ahart 2005-5-2 11753 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
  UCD80064  Gnaphalium palustre CNPS SN Foothill Team 2005-5-4 SNFN 0199 b Butte City of Chico, Bidwell Ranch, about 1.33 miles northwest of the end of Wildwood Road. 88 Comment
  SEINET10474675  Gnaphalium palustre Lowell Ahart 1985-11-7 Ahart 5239 Butte Lake Oroville, on the north side of the South Fork of the Feather River, about 200 yards north-west of the Ponderosa Dam. Comment
  SEINET10470042  Goodyera oblongifolia Lowell Ahart 1991-9-19 Ahart 6728 Butte Near where the two branches of Wildcat Creek come together, about 2 miles northwest of Four Trees, about 2 miles west of the Oroville-Quincy Highway, about 2 miles northeast of Coyote Gap. Yellow Pine Forest. T23N R6E NW/S29. 1219 Comment
  JEPS103378  Gratiola ebracteata Lowell Ahart 2002-4-24 9533 Butte Vernal pools and swales, in a field, on the E side of Lone Tree Road, ca 1 1/8 miles N of Cox Lane, ca 3 miles (air) SW of Palermo, ca 7 miles (air) S of Oroville. 35 Comment
  CAS-BOT-BC305286  Grindelia hirsutula L. P. Janeway 1993-8-7 4507 Butte Plumas National Forest, La Porte Ranger District. Along Road 21N25A at southwestern end of Watson Ridge; ca 2 mi east of Bald Rock Dome 1082 Comment
  CHSC35080  Hackelia californica R. Schlising; D. Ikeda, R. Banchero 1980-6-26 3789 Butte 4.0 mi SE of Butte Meadows on Bull Hill Road. 1536 Comment
  UC177589  Hackelia californica H. M. Hall 1914-7-27 9789 Butte Humboldt Road; Sierra Nevada Mountains 2042 Comment
  POM161686  Hackelia nervosa E. B. Copeland 1929-7-17 s.n. Butte About Jonesville. 2000 Comment
  SEINET10969144  Hackelia nervosa Mary Susan Taylor 1978-7-18 Taylor 1711 Butte On E side of Humboldt Peak, at Humboldt Summit, on Butte-Tehama County line; Red Fir Forest. 2134 Comment
  CHSC49661  Hastingsia alba Vernon Oswald 1983-7-6 831 Butte Near Humboldt Rd. 3.4 mi n-e of Butte Meadows. 1432 Comment
  CHSC46332  Hedypnois cretica Lowell Ahart 1989-5-23 6235 Butte Along the edge of a new subdivision road, 1/2 mile east of Dunstone Drive, about 1/2 mile north of Bangor Park Road, west of Bangor. 76 Comment
  CHSC78122  Hedypnois cretica Lowell Ahart 2000-5-31 8429 Butte Below the high water line of Lake Oroville, about 400 yards est of where Kunkle Creek enters Lake Oroville, east of the Kunkle Power House, about 3 miles southeast of Paradise. 271 Comment
  SEINET3450915  Hedypnois cretica Unknown 2003-5-15 10179 Butte Oroville, Oroville, about 12 miles southeast, west side of North Honcut Creek, about 2.5 miles north and 2.6 miles east of Honcut 60 Comment
  JEPS3347  Hedypnois rhagadioloides Roxana S. Ferris 1952-5-16 12476 Butte 5 mi s Cherokee (on road to Oroville) Comment
  CAS-BOT-BC306538  Helenium bigelovii Lowell Ahart 1980-7-20 2479 Butte At Little Bald Rock 1100 Comment
  UC1562301  Helenium puberulum Lowell Ahart 1990-7-15 6555 Butte about 1/2 mi nw Enterprise Bridge (w of the Enterprise Boat Launch, below the high water line of Lake Oroville, on n side of old paved road to Feather Falls); Lake Oroville 268 Comment
  SEINET5554091  Helianthella californica H. S. Gentry 1962-1 19760 Butte 6-7 mi. south of Cohasset, along road from Chico. 609 Comment
  SEINET10935957  Heliotropium europaeum Mary Susan Taylor 1975-10-3 Taylor 943 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
  CHSC45698  Helminthotheca echioides Vernon Oswald 1983-6-28 783 Butte Graylodge Waterfowl Management Area near Parking Lot 16. Along the edge of ponds in the refuge. Comment
  CHSC84037  Helminthotheca echioides Lowell Ahart 2003-6-16 10285 Butte On both sides of Wickman Road, about 100 yards south of Richvale West Road, about 1 3/4 miles west of Richvale. 29 Comment
  CHSC27212  Hemerocallis P. Moyer 1972-6-5 214 Butte S bank Chico Creek, between L. S. and Gus Magnolis Bridge, CSUC campus. 60 Comment
  CAS-BOT-BC314996  Hemizonella minima E. B. Copeland 1931-7-12 696 Butte Between Jones and North Willow Creeks, Jonesville 1700 Comment
  UC186060  Hemizonia congesta subsp. luzulifolia H. M. Hall 1914-8-1 9825 Butte near Chico Comment
  POM219506  Hemizonia pungens subsp. pungens H. F. Copeland 1923-8-13 545 Butte Nelson. Comment
  CAS-BOT-BC388490  Herniaria hirsuta var. cinerea Lowell Ahart 1975-6-4 s.n. Butte Near Honcut 38 Comment
  UCD77762  Hesperevax caulescens Robert E. Preston 2004-4-21 2215 Butte Ca. 4.3 mi NW of Oroville 53 Comment
  JEPS108885  Hesperocnide tenella Lowell Ahart 2006-4-27 12535 Butte Peter Ahart Ranch, about 1 1/4 miles north and 1 1/4 miles east of Honcut 45 Comment
  RSA0111936  Hesperocyparis macnabiana Lowell A. Ahart 2015-4-30 20117 Butte About 0.25 mile south of Forbestown Reservoir Road, about 2.5 miles (air) northeast of Forbestown. 890 Comment
  CHSC27304  Hesperolinon californicum T. B. Devine 1977-5-22 401 Butte Wurlitzer Farm, Vina Prairie. In grazed field next to Haile Rd ca 1 mi sw of Hwy 99. 57 Comment
  JEPS98477  Hesperolinon californicum Lowell Ahart 2000-5-31 8426 Butte 3 mi SE of Paradise (just W of Lake Oroville, 400 yds E of where Kunkle Creek enters Lake Oroville, E of Kunkle Power House) 286 Comment
  CDA18369  Heteranthera limosa G. D. Barbe 1978-8-14 2438 Butte Biggs Rice Experiment Station. 0 Comment
  CHSC113973  Heteranthera limosa Lowell Ahart 2014-10-14 19884 Butte Open area in a rice field, Peter Ahart Ranch, about 2-1/4 miles north and 1/4 mile east of Honcut, about 12 miles south of Oroville. 29 Comment
  CHSC54876  Heteranthera limosa Vernon H. Oswald; Lowell Ahart 1991-8-28 4851 Butte Rice Experiment Station on the south side of Hwy 162, ca. 3.5 miles north-northwest of Biggs. On the margins of rice fields. 30 Comment
  JEPS88408  Heteranthera limosa Vernon H. Oswald and Lowell Ahart 1996-7-22 8084 Butte U.S. Fish and Wildlife Service parcel between Seven Mile Lane and Sacramento River (in the nw corner of Tract 9.1, Sanctuary I, (a unit managed for watergrass)); Sacramento River National Wildlife Refuge, Llano Seco Unit 30 Comment
  CHSC31557  Heterocodon rariflorum L. Ahart 1973-5-29 246 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC42134  Heterocodon rariflorum Lowell Ahart 1973-5-29 247 Butte Near a small wash, Peter Ahart Ranch, about 2 miles north and 2 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC48012  Heterocodon rariflorum Vernon Oswald 1987-6-23 3022 Butte High Lakes Rd. 5.5 mi (odometer) n of Philbrook Rd. 1853 Comment
  JEPS93842  Heterocodon rariflorum Lowell Ahart 1998-6-9 7998 Butte about 7 air mi n of Oroville (about 1/2 mi nw of the Ione oak tree, nw of cow chute along Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 396 Comment
  SFV11711  Heterocodon rariflorum M. L. Vincent 1968-6-10 841 Butte Sierra Nevada 1/5 mile north of Cresta Power Station, North Fork Feather River. 460 Comment
  SEINET10460739  Heterocodon rariflorum Taylor 1980-5-31 Taylor 2770 Butte East side of Kunkle Reservoir, about 0.25 mile east of Pentz-Magalia Highway, about 3 miles south of Paradise. T22N R4E SW 1/4 Sec. 31 442 Comment
  CHSC38644  Heteromeles arbutifolia Vernon Oswald 1982-12-17 25 Butte Bidwell Park, Chico, between Chico Creek and Upper Park Rd about 200 ft w of the end of the pavement. 91 Comment
  SEINET5733943 Image available Heteromeles arbutifolia Lowell Ahart 1985-1 5092 Butte Ca. 2.5 mi. NE of Forbestown. 200 yds. S of the dirt road to the Forbestown Res. Yellow Pine Forest.; Forbestown 899 Comment
  CHSC32378  Heterotheca oregona var. compacta J. D. Jokerst 1980-7-21 999 Butte Sand bars adjacent to the Feather River where it intersects Table Mountain Blvd. Downtown Oroville. Comment
  CHSC43244  Heterotheca oregona var. compacta Lowell Ahart 1987-9-24 5903 Butte Near the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC66851  Heterotheca oregona var. compacta Vernon H. Oswald 1996-9-30 8289 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Northern Sacramento Valley. On the W side of the farm road between Camp 2 East and Camp 2 West in The Nature Conservancy easement area, near the Riparian Sanctuary. [Label says 'T20N R01W S15 SE1/4 of NW1/4']. 30 Comment
  JEPS113323  Heterotheca oregona var. compacta L. P. Janeway 2006-10-4 8900 Butte Sacramento Valley. Oroville Wildlife Area; 150 m east of Feather River, on west bank of narrow slough; 1.7 km south-southeast of the Thermalito Afterbay outlet. Comment
  UC202672  Hieracium albiflorum A. A. Heller 1917-7-26 12848 Butte Butte Meadows 1402 Comment
  CHSC86850  Hieracium scouleri var. scouleri L. P. Janeway; John Hunt 2003-7-11 7895 Butte Northern High Sierra Nevada. Along east side of North Fork Feather River arm of Lake Oroville; 835 m north-northeast of mouth of French Creek. Along edge and cutbank of roadbed. 305 Comment
  CHSC84695  Hoita orbicularis L. P. Janeway 2003-6-8 7822 Butte High Cascade Range. Flea Valley: meadow at head of Concow Creek. 1100 Comment
  CHSC102816  Holcus lanatus Lowell Ahart 2009-6-19 15937 Butte Along 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
  CHSC42401  Holcus lanatus Lowell Ahart 1987-6-9 5728 Butte Along the edge of the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 274 Comment
  CHSC34043  Holodiscus discolor L. Ahart 1981-7-7 2931 Butte Near a small dry stream, near the dirt rd to the Forbestown Reservoir, 1/2 mi w of the Forbestown Reservoir, ne of Forbestown. 750 Comment
  CAS-BOT-BC311881  Holozonia filipes Lowell Ahart 1981-7-7 2914 Butte Sutter Buttes Area. About 1 mile south of the Oroville Forbestown Road on the Hurleton Swedes Flat Road 600 Comment
  CAS-BOT-BC311883  Holozonia filipes A. A. Heller 1914-7-13 11565 Butte Mt. Ida Ranch, 10 miles east of Oroville Comment
  SEINET11689119  Hordeum marinum subsp. gussoneanum L. Ahart, Taylor, M. S.; Jokerst, J. D. 1982-1 1537 Butte Grey Lodge Waterfowl Management Area, N side of Rutheford Rd, ca 100 m W of Pennington Rd Comment
  JEPS117881  Hordeum murinum subsp. glaucum L. P. Janeway 2008-4-2 9248 Butte East edge of City of Chico Cascade Range Foothills (slope on north side of Humboldt Road 2.9 km northeast of Bruce Road) 167 Comment
  CHSC6161  Hordeum vulgare E. Parreno 1968-4-14 50 Butte Adjacent vacant lot n of Community Congregational Church on e 1st. Ave., Chico. 59 Comment
  JEPS83780  Horkelia fusca subsp. tenella V. Oswald and L. Ahart 1988-7-16 3614 Butte ca 6 air mi se Jonesville; Snow Mt. region, Red Fir Forest 1996 Comment
  CAS-BOT-BC143973  Horkelia fusca var. tenella A. A. Heller 1914-8-8 11673 Butte Jonesville 1524 Comment
  SEINET5327465  Hosackia oblongifolia var. oblongifolia K. Conger 1907-1 s.n. Butte Brush Creek Comment
  CHSC885  Hosackia pinnata L. Nelson 1935-5-25 Butte Cohasset. 609 Comment
  CAS-BOT-BC400829  Hypericum anagalloides A. A. Heller 1916-9-8 12652 Butte Ten mile house east of Chico Comment
  CAS-BOT-BC400832  Hypericum anagalloides E. B. Copeland 1929-7-16 381 Butte Jonesville 1550 Comment
  CHSC34160  Hypericum anagalloides L. Ahart 1981-8-31 3055 Butte In seep near the Black Bart Rd, ca. 1 mi w of the jct of Black Bart Rd and Oroville-Forbestown Rd, w of Forbestown. 750 Comment
  POM196017  Hypericum androsaemum E. B. Copeland 1929-7-16 381 Butte Jonesville. 1550 Comment
  RSA754879  Hypericum androsaemum L. Ahart 2009-6-18 15992 Butte Meadow on the E side of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 air miles W of Highway 32, about 10 miles NE of Chico. 236 Comment
  CHSC5954  Hypericum calycinum M. MacArthur 1968-6-17 183 Butte Chico State College Campus, SE wall of Life Science bld. 60 Comment
  UC129113  Hypericum concinnum Miss Kate Conger 1907-1 Butte Brush Creek Comment
  LA212279  Hypericum concinnum James R. Shevock; 1972-5-19 s.n. Butte Near Lake Oroville, along Highway #70. 91 Comment
  CHSC63821  Hypericum formosum var. scouleri S. C. Morey 1983-8-2 678 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  POM183154  Hypericum formosum var. scouleri H. F. Copeland 1930-7-24 1316 Butte Jonesville. Comment
  SEINET10472163  Hypericum formosum var. scouleri Mary Susan Taylor 1977-7-15 Taylor 1403 Butte Butte Meadows, ca. 20 mi NE of Chico off Hwy 32. 1326 Comment
  CHSC38470  Hypericum perforatum Vernon Oswald 1983-5-31 588 Butte Upper Bidwell Park, Chico, on the bank of a dry oxbow ca. 200 ft w of Day Camp. 91 Comment
  SEINET10472151  Hypericum perforatum Mary Susan Taylor 1975-6-25 Taylor 792 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
  CAS-BOT-BC312933  Hypochaeris glabra John Thomas Howell 1961-9-22 36718 Butte Bank of Feather River, Oroville 53 Comment
  CHSC21168  Hypochaeris glabra M. S. Taylor 1975-5-3 216 Butte Ca. 500 yds e of Hwy 70, ca. 15 mi n of Oroville. Comment
  JEPS115302  Hypochaeris glabra Lowell Ahart 2009-5-8 15654 Butte On the south side of the gravel road, about 10 yards east of Cedar Grove Parking Area in Lower Bidwell Park, Chico 67 Comment
  CAS-BOT-BC312931  Hypochaeris glabra Lowell Ahart 1980-5-4 2208 Butte Near Hurleton 600 Comment
  CAS-BOT-BC133511  Iris John Thomas Howell 1955-6-14 30470 Butte De Sabla Comment
  CAS-BOT-BC133513  Iris Lowell Ahart 1980-5-29 2360 Butte 2 1/2 mi. north-east of Mountain House, about 50 m. E of the Oroville Quincy Highway 1100 Comment
  RSA150570  Iris hartwegii Lee W. Lenz 1961-6-20 24350 Butte Feather River Canyon, between first and second power dams-- near Cresta power station Comment
  CHSC30291  Iris hartwegii subsp. hartwegii M. S. Taylor 1980-5-27 2646 Butte Around parking lot, Big Bald Rock, ca. 3 mi e of Lake Madrone. 975 Comment
  CHSC65605  Iris hartwegii subsp. hartwegii L. P. Janeway 1995-6-1 4768 Butte South-trending ridgetop at the far western end of Jackson Ranck Ridge, about 0.9 mi east-northeast of the falls of Feather Falls. 1054 Comment
  CHSC21276  Iris macrosiphon M. S. Taylor 1975-4-13 379 Butte Ca. 75 ft s of the Skyway on Neal Rd, Paradise. 609 Comment
  CHSC90653  Iris macrosiphon Doug Burcombe 1988-4-20 16 Butte 11 mi NNE of Chico. Cohasset ridge. 175 m S of Anderson fork of Rock Creek. 320 Comment
  CDA19115  Isatis tinctoria Harrie D. Riley, Ernie Simpson 2001-4-27 PDR 1170765 Butte Sacramento Valley; Vicinity of Chico. Approx 1/5 mi on E side of Mud Creek and N side of Hwy 32 0 Comment
  CDA43102  Isatis tinctoria L. P. Janeway 2014-5-22 11259 Butte Northern High Sierra Nevada.; Plumas National Forest; along the Oroville-Quincy Hwy in Brush Creek, 0.6 km northeast of the upper end of Bald Rock Road. Comment
  CHSC101663  Isoetes nuttallii Lowell Ahart 2009-4-26 15642 Butte In a wet drainage, on the west side of Guardians Trail, about 300 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
  CHSC39529  Isoetes nuttallii Lowell Ahart 1983-6-12 4046 Butte 7 miles south-west of Feather Falls. About 1 mile south of Crystal Hill, neat Oregon Gulch, near Lake Oroville. 425 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
  UC1586564  Isoetes nuttallii Vernon H. Oswald and Lowell Ahart 1991-6-5 4641 Butte ca 1.5 air mi nw Platte Mt Lookout (between Forest Ranch and Lomo, dirt rd to Minnie-Ha-Ha Mine on Big Chico Creek on w side of Hwy 32) 853 Comment
  CHSC46422  Isolepis cernua Lowell Ahart 1989-5-23 6270 Butte Pond, in Dutch Ravine, about 1/8 mile north of Swedes Flat Road, about 1 1/2 miles east of the Oroville Bangor Highway, north of Bangor. 426 Comment
  CHSC78208  Isolepis cernua Lowell Ahart 2000-5-24 8390 Butte On the east side of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 39 Comment
  CHSC82291  Isolepis cernua Lowell Ahart 2002-4-24 9534 Butte Vernal pools and swales, in a field, on the east side of Lone Tree Road, about 1 1/8 miles north of Cox Lane, about 3 miles (air) southwest of Palermo, about 7 miles (air) south of Oroville. 35 Comment
  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
  CHSC78002  Juncus acuminatus Lowell Ahart 2000-5-13 8341 Butte On the margin of the Thermalito Afterbay, on the west side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 42 Comment
  CHSC6672  Juncus balticus Marilyn Lee 1968-4-19 102 Butte Along W. side of Cherokee Rd., ca. 2 miles S. of Cherokee and 100 yards S.E. of cemetary. Comment
  CHSC7194  Juncus balticus M. I. Moore 1969-4-26 16 Butte Upper Bidwell Park, ca. 1000 yds. nw of Salmon Hole - Big Chico Creek. 106 Comment
  SEINET10872268  Juncus brachyphyllus Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4135 Butte T20N R5E sw sec 10. Near edges of Ponderosa Way (Big Ridge Rd), near East Fork of Canyon Creek, ca. 14 mi ne of Oroville. Foothill Woodland; 500 m. 500 Comment
  UCD80388  Juncus bufonius CNPS SN Foothill Team 2005-3-30 SNFN 0029 a Butte CDFG North Table Mountain Wildlife Area, in the Table Mt. Ecological Reserve, approximately 500 m E of the parking area off Cherokee Road. 381 Comment
  CHSC102420  Juncus bufonius var. bufonius Lowell Ahart 2009-7-9 16005 Butte On damp to wet soil, in ditch, 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
  CHSC44244  Juncus bufonius var. bufonius V. Oswald; L. Ahart 1988-7-13 3578 Butte Road to High Lakes e of Philbrook Reservoir. On the n side of the road. 1859 Comment
  JEPS98590  Juncus bufonius var. bufonius Lowell Ahart 2000-6-29 8533 Butte 1/2 mi W of Flea Mountain; ; W side Concow Rd at Flea Meadow, 3 1/2 air mi N of Concow Reservoir, 5 air mi E of Magalia 1036 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
  CHSC61347  Juncus bufonius var. occidentalis Lowell Ahart 1993-7-29 7119 Butte Near a seep, about 2 1/2 miles north-east of Bald Mountain, about 6 1/2 miles north-east of Stirling City. 1584 Comment
  CHSC27059  Juncus capitatus Lowell Ahart 1978-5-1 1679 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC40348  Juncus capitatus Ahart; Jokerst 1985-5-10 4957 Butte Small meadow, near the washed out dam across the east branch of Potter Ravine, about 2 1/4 miles north of Oroville Dam. 320 Comment
  JEPS98694  Juncus dubius Lowell Ahart 2000-6-17 8485 Butte 2 mi S of Paradise (1/4 mi NE of Kunkle Reservoir, E of the Pentz Magalia Road) 548 Comment
  CHSC30436  Juncus effusus subsp. pacificus L. Ahart 1980-7-29 2506 Butte Along edges of road in gutters. Lower Forbestown Rd (Ponderosa Way) ca 1/4 mi N of intersection with Robinson Mill Rd, W of Forbestown. 750 Comment
  CHSC96972  Juncus effusus subsp. pacificus Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-10 14280 Butte Northwest part of a large open area, about 250 yards east of Bean Creek Road, northeast of Little Bald Road, about 16 miles (air) northeast of Oroville. 1024 Comment
  CHSC107568  Juncus effusus var. pacificus Lowell Ahart 2011-8-19 17637 Butte About 30 yards east of Know-northing Creek, in low area on the north side of Lumpkin Ridge Road, about 1/2 mile southwest of the intersection of Lumpkin Ridge Road, County Road and road to Cascade, about 5 miles (air) northeast of Feather Falls. 1252 Comment
  CHSC107583  Juncus effusus var. pacificus Lowell Ahart 2011-8-23 17646 Butte In the large meadow, Pinkard Creek flows through the meadow, east of the corral, about 1 mile north of Lost Creek Reservoir Dam, about 4 miles (air) northeast of Clipper Mills. Meadow in Yellow Pine Forest. 1133 Comment
  JEPS118084  Juncus effusus var. pacificus Lowell Ahart 2011-8-23 17646 Butte In the large meadow, Pinkard Creek flows through the meadow, east of the corral, about 1 mile north of Lost Creek Reservoir Dam, about 4 miles (air) northeast of Clipper Mills. Meadow in Yellow Pine Forest 1133 Comment
  SEINET10905121  Juncus effusus var. pacificus Mary Susan Taylor 1978-7-21 Taylor 1811 Butte On S side of Oroville-Quincy Hwy, along creek and in meadow, ca. 14 mi N of Lake Madrone, ca. 24 mi NE of Oroville; Yellow Pine Forest. 1463 Comment
  SEINET10938194  Juncus effusus var. pacificus Lowell Ahart 1985-6-30 Ahart 5086 Butte About 2 1/2 miles north-east of Forbestown. Alt. 2850 ft. 868 Comment
  CHSC69058  Juncus ensifolius Lowell Ahart 1997-8-1 7763 Butte On the bottom of Little Kimshew Creek, Snow Meadow, about 1/4 mile east of Table Mountain, about 8 miles (air) northeast of Stirling City. 1524 Comment
  CHSC78335  Juncus ensifolius Lowell Ahart 2000-7-11 8568 Butte 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) northeast of Feather Falls. 1219 Comment
  CHSC51027  Juncus hemiendytus Lowell Ahart; Vern Oswald 1990-7-5 6550 a Butte In a small meadow, about 1/2 mile north of Butte Creek House, about 2 miles northeast of Snag Lake. 1828 Comment
  SEINET260324  Juncus howellii Lowell Ahart 1988-7-23 6071 Butte S of the intersection of Black Bart Rd and Forbestown Rd ca 1 mi W of Robinson Mill Rd 671 Comment
  CHSC36223  Juncus leiospermus var. ahartii L. Ahart 1982-5-1 3401 Butte Around edges of a large vernal pool in one of the farmed fields, Peter Ahart Ranch, ca. 2 mi n and 0.5 mi e of Honcut. 50 Comment
  CHSC93378  Juncus leiospermus var. ahartii Lowell Ahart 2006-4-27 12538 Butte In a vernal pool, about 100 yards north of the tower by the south fence, pasture fields, Peter Ahart Ranch, about 1 mile north and 1 3/4 miles east of Honcut. 58 Comment
  CHSC113239  Juncus leiospermus var. leiospermus Lowell Ahart 2014-4-20 19392 Butte About 1 1/8 miles northwest of the parking area on the west side of Cherokee Road, about 7 miles (air) north of Oroville. 350 Comment
  CHSC83955  Juncus leiospermus var. leiospermus Lowell Ahart 2003-4-8 10036 Butte On the high water line of a small vernal pool, about 20 yards south of a faint poor dirt road, pasture field, about 150 yards southwest of the iron gate and fence, west of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 344 Comment
  CHSC74026  Juncus oxymeris B. Castro 1998-7-8 804 Butte Sunset Hill Meadow. Ca 2 air mi W of Forbestown, ca 0.2 mi S of Sunset Hill fire lookout and 300 ft S of Forbestown Rd, at headwaters of New York Creek. At end of old dirt rd at E edge of old homestead site. Along footpath. 929 Comment
  POM197255  Juncus oxymeris H. F. Copeland 1923-8-13 1099 Butte Nelson. Comment
  SEINET10839435  Juncus patens Mary Susan Taylor 1979-10-12 Taylor 2243 Butte T23N R2E sec 25. Riparian Woodland, Big Chico Creek, at end of Upper Bidwell Park Road, ca. 10 mi NE of Chico. 244 Comment
  CHSC39271  Juncus tenuis Lowell Ahart 1983-7-29 4219 Butte Found along the dirt road, about 2 miles south of Milsap Bar, about 23 miles northeast of Oroville. 750 Comment
  CHSC57161  Juncus tenuis L. P. Janeway 1988-6-14 2773 Butte Ewalt Camp; meadow along West Branch Butte Creek 2.0 mi east from Hwy 32 by dirt road. 922 Comment
  SEINET10472350  Juncus tenuis Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4219 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
  UCR261234  Juncus trilocularis Peter F. Zika 2011-7-6 25540 Butte Northern Sierra Nevada Range, highlands, above Oroville-Quincy Hwy, 0.8 road mi south of Stevens Ridge Road, 2.5 air mi northeast of Wild Yankee Hill 830 Comment
  CHSC28980  Juncus uncialis R. A. Schlising 1980-3-17 3517 Butte SE of Chico, along Skyway. Vernal pools. 70 Comment
  CHSC116023  Juncus usitatus Lowell Ahart 2015-10-16 20560 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
  CHSC97123  Juncus usitatus Lowell Ahart 2007-7-5 14250 Butte On the south side a drainage ditch, on the north side of Evans Reimer Road, about 1 1/4 miles east of Pennington Road, about 4 3/4 miles (air) southwest of Gridley. 22 Comment
  JEPS113762  Juncus usitatus Lowell Ahart 2007-7-31 14400 B Butte On the south strand of Thermalito Afterbay, about 150 yards north of Highway 162, about 5 1/4 miles west of the intersection of Highway 162 and Highway 70, about 5 3/4 miles (air) west of Oroville 34 Comment
  RSA123366  Juniperus californica A. E. Wieslander 1933-6-24 330 Butte 8 miles southeast of Chico on Neal Road 122 Comment
  SEINET10531628  Juniperus californica Lowell Ahart 1983-4-10 Ahart 3922 Butte S of a large wash, 1/10 mi e of the large barn, ca. 1.4 mi ne of Hwy 99 and Pentz Rd jct, ca. 16 mi s of Chico. Valley Grassland; 65 m. 65 Comment
  RSA754854  Keckiella breviflora subsp. glabrisepala L. Ahart 2009-4-26 15610 Butte Upper Bidwell Park: on N side of Ten Mile House Road, about 100 yards W of the intersection of Hwy 32 and Ten Mile House Road, about 10 miles NE of Chico. 462 Comment
  UC1594577  Keckiella breviflora var. glabrisepala Lowell Ahart 1992-5-9 6765 Butte about 2 air mi n Oroville (on n side of Thermalito Diversion Pool, on n side of dirt road); Lake Oroville Recreation Area 76 Comment
  CHSC28393  Keckiella corymbosa J. D. Jokerst 1979-10-12 368 Butte On lava boldiers along Big Chico Cr. 1/4 mi. N.E. of end of Upper Park (Bidwell) Rd. 213 Comment
  RSA25679  Keckiella lemmonii Carl B. Wolf 1941-7-23 11051 Butte Northern Sierra Nevada. 0.7 mi. n.w. of Magalia at n.w. side of Magalia Reservoir. 732 Comment
  CHSC93992  Kelloggia galioides R. D. Fischer 2004-6-20 762 Butte Sierra Nevada Mountains, north-east corner of Butte County and ca. 2 miles north of Butte Meadows off Scout Road. 1356 Comment
  CHSC65176  Kickxia elatine Lowell Ahart 1995-8-19 7611 Butte East side of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 3/4 miles east of Honcut, about 12 miles south-east of Oroville. 36 Comment
  SEINET9773735 Image available Kickxia elatine Richard Carter 2006-7-30 Butte N Chico, 0.3 mi N jct. Nord Hwy and Esplanade, between Esplanade and Hwy CA 99 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
  CHSC28910  Kumlienia hystricula M. S. Taylor 1980-2-17 2367 Butte In embankment of creek at an old mine site, ca. 1/2 mi sw of lower Forbestown Rd, ca. 3 mi w of Forbestown. 396 Comment
  CAS-BOT-BC340330  Kyhosia bolanderi E. B. Copeland 1930-8-4 s.n. Butte Jonesville 1500 Comment
  JEPS115280  Lactuca saligna Lowell Ahart 2008-11-4 15400 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
  JEPS115721  Lactuca saligna Lowell Ahart 2009-8-3 16254 Butte On the east side of Ten Mile House Road, Upper Bidwell Park, about 3/4 miles (air) west of Highway 32, about 10 miles northeast of Chico 236 Comment
  CHSC38366  Lactuca serriola Vernon Oswald 1983-6-27 773 Butte Upper Bidwell Park, Chico, near the n. boundary of the park in the depression w of the Easter Cross. 88 Comment
  CAS-BOT-BC340528  Lactuca serriola Lowell Ahart 1987-8-3 5843 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  CHSC65326  Laennecia coulteri Lowell Ahart 1995-10-4 7678 Butte Rice field, Peter Ahart Ranch, about 2 miles north and 1/4 mile easata of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC27237  Lagerstroemia indica P. Moyer 1971-9-25 3 Butte CSUC campus. W side Bus-Soc Sci. Bldg. 60 Comment
  CHSC31536  Lagophylla glandulosa L. Ahart 1979-5-20 1879 Butte On bottom of wash. Peter Ahart Ranch, Honcut. 50 Comment
  UCD133614  Lagophylla glandulosa Joseph M. DiTomaso 1976-5-23 477 Butte Lake Oroville, peninsula at south end. 274 Comment
  CAS-BOT-BC341305  Lagophylla glandulosa H. M. Hall 1914-8-1 9829 Butte Foothills near Bidwell Bar, (Mt. Ida) Comment
  CHSC104013  Landoltia punctata Lowell Ahart 2010-6-12 16806 Butte In pond, on the east side of the trail and dam, at the old homestead, about 100 yards south of Ten Mile House Road, about 5/8 mile (air) west of Highway 32, about 9 miles (air) northeast of Chico. 249 Comment
  CHSC65891  Lasthenia californica Vernon H. Oswald 1996-4-20 7395 Butte Sacramento Valley. Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. In the S half of the S paddock of Tract 7, Sanctuary II. 32 Comment
  UCSC004635  Lasthenia fremontii Lowell Ahart 2005-5-11 11806 Butte T20N, R3E, northeast 1/4 Section 24, south of a small stream, open pasture field, a bout 1 mile south of Beatson Hollow, about 1.5 miles southwest of the poor dirt road off Cherokee Road, south part of North Table Mountain, about 7 milse (air) north of Oroville 281 Comment
  POM55153  Lasthenia fremontii A. A. Heller, H. E. Brown 1902-5-2 5441 Butte Near Butte City Comment
  CHSC117437  Lathyrus angulatus Lowell Ahart 2016-5-30 20896 Butte On the south side of a deep wash, west of Little Pump, Peter Ahart Ranch, about 2 1/2 miles north and 1/4 mile east ofd Honcut, about 12 miles (air) south of Oroville. 30 Comment
  CHSC44392  Lathyrus angulatus Lowell Ahart 1988-5-22 6006 Butte In a farmed field, Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC66440  Lathyrus jepsonii var. californicus Vernon H. Oswald; Lowell Ahart 1996-6-10 7753 Butte Sacramento National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service Parcel between 7 Mile Lane and the Sacramento River. Locally common on the edge of the slough on the E side of Goodman Opening, near the SE end of the Riparian Sanctuary. 28 Comment
  UC478504  Lathyrus nevadensis var. nevadensis E. B. Copeland 1931-6-10 310 Butte Jonesville 1500 Comment
  CHSC6038  Lathyrus sylvestris M. MacArthur 1968-6-18 221 Butte Ca. 30 ft. SE big Chico Creek, just NE of Bidwell Boul, Chico State College campus. 60 Comment
  CHSC82700  Lathyrus tingitanus Tara Morgan 2002-5-7 56 Butte Was seen in the Feather River Canyon just east of Highway 70 near the West Branch Bridge of the West Branch Feather River/Lake Oroville. It was all around the edges of the rest area parking . 318 Comment
  CAS-BOT-BC321759  Layia fremontii Jeanne McFarland; Kathie Meyer; Anne Mullenniex 1995-4-9 3 Butte At intersections of Hwys 149 & 99 just N of Oroville, 50' E of offramp 54 Comment
  SBBG17071  Layia fremontii M. Vincent 1961-3-29 Butte Chico Rd, ca. 1 mi E of Chico 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
  SEINET10474774  Leontodon leysseri Mary Susan Taylor 1977-8-16 Taylor 1444 Butte Butte College Campus, ca. 15 mi S of Chico. With Marc Hayes. 61 Comment
  CHSC65988  Leontodon saxatilis subsp. longirostris Vernon H. Oswald 1996-5-9 7544 Butte Sacramento Valley. Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife parcel between 7 Mile Lane and the Sacramento River. In the S paddock of Tract 7, Sanctuary II. 32 Comment
  JEPS103249  Leontodon saxatilis subsp. longirostris Lowell Ahart 2002-5-7 9610 Butte High banks of a pond, at the beginning of a SE 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
  CAS-BOT-BC88736  Lepidium appelianum J. D. Jokerst; R. A. Schlising 1982-6-4 4287 Butte North of Oroville and north of Jarbo Gap along Highway 70 above Feather River Canyon. Comment
  CHSC4120  Lepidium nitidum R. Carter 1966-4-2 324 Butte Found ca. 7 mi. E Oroville at 6120 Woodleaf St. Rt. 300 yds off Feathervale, behind house, in pasture. 243 Comment
  CAS-BOT-BC12801  Lepidium perfoliatum Lowell Ahart 1984-6-8 4680 Butte 3 miles NE of the Ponderosa Dam. The road forks here and one goes to Feather Falls and the other to Lumpkin Ridge Road. 500 Comment
  SEINET10907332  Lepidium perfoliatum Lowell Ahart 1985-4-1 Ahart 4874 Butte Along Table Mountain Boulevard, near the Cambell Overflow, a little south of the inter- section of Highway 70 and 149, about 7 miles north of Oroville. Comment
  CAS-BOT-BC13067  Lepidium virginicum var. menziesii L. S. Rose 1931-4-14 s.n. Butte Oroville. Comment
  CHSC69464  Leptochloa dubia Lowell Ahart 1997-9-6 7894 Butte On the west side of Highway 70, just north of Rich Gulch Road, about 1 1/2 miles north of the bridge across the West Branch of Lake Oroville. 396 Comment
  CAS-BOT-BC273947  Leptochloa fusca subsp. fascicularis Lowell Ahart 1986-11-9 5456 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
  SEINET3441871  Leptochloa fusca subsp. fascicularis Unknown 2003-6-22 10298 Butte Richvale, Richvale, south side of the Richvale highway, about 50 yards east of the railroad 30 Comment
  CHSC38810  Leptochloa fusca subsp. fusca Vernon Oswald 1983-8-2 945 Butte Upper Bidwell Park, Chico, in Lindo Channel ca. 100 ft e of the flood-control gates. Along the edge of the stream. 79 Comment
  CHSC36821  Leptosiphon bolanderi M. S. Taylor 1981-5-21 3777 Butte S side of Concow Rd, ca. 1/2 mi s of its jct with Ponderosa Way, ca. 20 air mi n of Oroville. 853 Comment
  CHSC38597  Leptosiphon filipes Vernon Oswald 1983-5-7 442 Butte Upper Bidwell Park, Chico, on the north rim at the head of the east tributary of Sycamore Creek. 365 Comment
  CHSC35111  Leptosiphon parviflorus R. Schlising; R. Banchero 1981-4-17 4037 Butte SE of Oroville and NE of Honcut, 1.1 mi S of jct Grubbs and Dunstone Roads, along latter. Comment
  CAS-BOT-BC341786  Lessingia nemaclada John Thomas Howell 1951-6-26 27508 Butte Feather River Canyon 198 Comment
  CHSC102843  Lessingia nemaclada Lowell Ahart 2009-6-30 15965 Butte About 150 yards north of a small drainage, along the Guardian Rock Trail, about 150 yards southwest of Pine Trail, about 1/2 mile (air) southwest of the intersection of Ten Mile House Road and Highway 32, Upper Bidwell Park, about 10 miles northeast of Chico. 398 Comment
  CHSC25345  Lessingia nemaclada M. P. Hayes 1977-8-12 27 Butte At Pulga, Feather River Canyon. 100 m from the intersection of Pulga Road and Highway 70, along Pulga Road. 426 Comment
  CHSC39349  Lessingia nemaclada Lowell Ahart 1983-6-30 4179 Butte Along the dirt road, about 1 1/2 miles north-east of Concow Res. 550 Comment
  CAS-BOT-BC341798  Lessingia nemaclada A. A. Heller 1940-9-28 15841 Butte Upper end of the Honey Run grade at Paradise Comment
  HSC5936  Lessingia virgata J. T. Howell 1959-9-19 34612 Butte 5 mi. W of Oroville. 46 Comment
  UC1069830  Lessingia virgata J. E. Sowder 1933-6-15 85 Butte 1 mi w Tres Vias; Chico Quadrangle Comment
  UCD169079  Lessingia virgata Ramona Robison 2013-4-15 12 Butte Clay Pit State Vehicular Recreation Area, located two miles west of the town of Oroville. 41 Comment
  RSA181930  Lessingia virgata Willard Spence 1960-9-7 625 Butte 7 miles south of Oroville, alternate Route 40 Comment
  POM195743  Leucophysalis nana E. B. Copeland 1929-7-16 396 Butte Jonesville. 1550 Comment
  POM196087  Leucophysalis nana H. F. Copeland 1929-6-9 1228 Butte Jonesville. 1524 Comment
  CHSC47675  Leucothoe davisiae Lowell Ahart 1989-9-21 6396 Butte Along a small branch of French Creek, on the north side of the gravel road, east of a small pond, about 1 mile west of the Sly Creek Reservoir. 1158 Comment
  CHSC97256  Lewisia cantelovii Lowell Ahart 2007-5-16 13894 Butte On the east side of Highway 70, about 150 yards no ... Field redacted by CHSC, contact the data manager for more information 463 Comment
  SEINET10531251  Libocedrus decurrens Edwin B. Copel 1931-7-28 Copeland s.n. 1931 Butte Jonesville, On ridge west of North Willow Creek. 1650 Comment
  CAS-BOT-BC130567  Lilium humboldtii Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  CAS-BOT-BC509480  Lilium kelleyanum Lowell Ahart 1988-5-29 6099 Butte Along a small branch of Bean Creek, on the north side of Bean Creek Road, about 3/4 mile south-east of Little Bald Rock 944 Comment
  CHSC43047  Lilium pardalinum subsp. pardalinum L. P. Janeway 1987-6-27 2334 Butte Along dirt rd 0.6 mi east of Ramsey Bar; just north of 'The Big Hill. 1386 Comment
  CHSC50980  Lilium pardalinum subsp. pardalinum Pauleen Broyles 1987-7-19 1083 Butte Ca 2.6 km e. of the crossing of Coon Hollow Road at Coon Hollow Creek (W. Branch Feather R.). Comment
  CHSC71663  Lilium washingtonianum subsp. washingtonianum Vernon H. Oswald; Lowell Ahart 1998-8-11 9474 Butte Four Trees-Coyote Gap Rd. 0.1 mi west of Four Trees. 1578 Comment
  CAS-BOT-BC133045  Lilium washingtonianum subsp. washingtonianum Albert M. Vollmer; Ira L. Wiggins 1940-7-6 10 Butte About 1/2 mile west of Chaparral 1554 Comment
  SEINET12183346  Limnanthes douglasii Unknown 1978-1 4 Butte Table Mtn. ca 6 mi S on Cherokee Rd. from Hwy 70, W side of road, ca 5.5 mi n of Oroville; Comment
  CHSC36137  Limnanthes douglasii subsp. nivea Linyi Maslin 1981-4-1 14 Butte Near water. North Table Mountain, ca. 5 km n of Oroville. 390 Comment
  HSC92521  Limnanthes douglasii subsp. nivea Jeanne McFarland, Kathie Meyer, Anne Mullenniex 1995-4-9 44 Butte On N Table Mtn., S of Paradise on Cherokee Rd., at E end of Table Mtn. 381 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
  UC971797  Limnanthes floccosa subsp. californica Charles T. Mason Jr. 1949-4-24 1256 Butte 9 mi nw Oroville (on n side of Oroville-Chico road) Comment
  CHSC67560  Limnanthes floccosa subsp. floccosa James D. Jokerst 1988-3-15 3045 Butte Ca. 150 m W of Cohasset Rd. ca. 1/6 mi S of junction with Keefer Rd. Comment
  CDA6277  Limnophila X ludoviciana Vernon Oswald, Lowell Ahart & Barbara Ertter 1998-10-22 9674 Butte Northeast corner of Hamilton and Riceton Roads, Rice Experiment Station northwest of Biggs. Comment
  CHSC40393  Limosella acaulis Lowell Ahart 1985-4-20 4876 Butte Rice field, Peter Ahart Ranch, about 2 miles north and 1/8 mile east of Honcut, about 12 miles south of Oroville. 40 Comment
  RSA769681  Linanthus bicolor L. Ahart 2009-4-22 15585 Butte Along Guardians Trail, just south of the small drainage, just north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 382 Comment
  CHSC2480  Linanthus dichotomus W. Fitzwater 1958-4-19 Butte Humboldt Rd., Chico area. On top of ridge. 457 Comment
  CHSC29040  Linanthus dichotomus J. D. Jokerst 1980-3-31 532 Butte Several miles S of Cohasset Hwy, eastern portion of Cohasset Ridge. 670 Comment
  POM65888  Linanthus dichotomus subsp. meridianus E. B. Copeland 1903-4-11 3030 Butte Chico. Comment
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May 3 2021
  SEINET12327002  Linanthus filipes R. E. Alumbaugh 1984-1 5 Butte 6.4 mi E of Hwy 99 and ca 150 yds N of Skyway, 8.5 mi E of Chico 387 Comment
  CHSC42324  Linanthus pungens R. M. Austin 1896-7-1 109 Butte Mountains-near Colby. 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
  HSC97152  Linaria dalmatica subsp. dalmatica L. Ahart 2005-11-12 12484 Butte S side of Dark Canyon Creek, 50 yds. S of train tunnels, W of Dark Canyon Rd., 2.5 mi. S of Hwy. 70 at Big Bend Rd. 294 Comment
  CHSC112077  Lindernia dubia var. anagallidea B. Castro 2013-7-26 1997 Butte Sacramento Valley. At N end of Chico, just S of the Chico Airport, along Sycamore Creek,ca 0.6 mi downstream (W) of its crossing under the Cohasset Hwy bridge and ca 500 ft E of its confluence with Sheep's Hollow. Bed of central channel. 54 Comment
  SD2733  Linum lewisii E. B. Copeland 1929-7-17 Butte Above Jonesville 2000 Comment
  JEPS120620  Lipocarpha micrantha Lowell Ahart 2013-11-13 19239 Butte Below the high water line of Lake Oroville, along the sides of Sucker Creek, about 30 yards north of the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. Comment
  CHSC2819  Lithophragma bolanderi David Prall 1965-3-14 9 Butte At edge of cliff ca. 30 yds. south of Neal Rd. 1mile East of HW 99E. 106 Comment
  CHSC31214  Lithophragma bolanderi M. S. Taylor 1980-4-16 2497 Butte Lake Oroville State Recreation Area, ca. 1.4 mi s of Parish Camp, ca. 1 mi n of Hwy 70 bridge over Feather River, ca. 5 mi s of Paradise. 304 Comment
  CHSC35994  Lithophragma bolanderi J. D. Jokerst 1982-5-19 1577 Butte Southern edge of Lumkin Ridge. 1280 Comment
  CHSC52134  Lithophragma bolanderi Carol A. Bordin 1983-4-19 19 Butte S Pentz-Magalia Hwy and Hwy 70 intersection, 0.3 mi e of Hwy 70 to Cherokee Rd. ca. 7.2 mi n of Cherokee Rd and ca. 6 mi n of Oroville city limit. Table Mtn. 335 Comment
  CHSC51107  Lithophragma parviflorum var. trifoliatum Gerald A. Winter 1989-4-15 12 Butte Ca. 100 yds w of Cherokee Road on Table Mountain, ca. 5 mi ne of Oroville. 396 Comment
  CHSC51110  Lithophragma parviflorum var. trifoliatum Ginger S. Gough 1989-4-8 20 Butte Ca. 9 m se of Coal Canyon Falls, n Table Mt., ca. 10 km ne of Oroville. 244 Comment
  CHSC65436  Lithophragma parviflorum var. trifoliatum Vernon Oswald 1983-3-14 170 Butte Upper Bidwell Park, Chico, on the north rim at the head of the ravine at the Rifle Range. 182 Comment
  UC589702  Lithophragma parviflorum var. trifoliatum R. Holdenried 1938-4-2 59 Butte Paradise Comment
  UC726538  Lithophragma parviflorum var. trifoliatum A. A. Heller 1929-4-12 14830 Butte Richardson's Springs Comment
  CAS-BOT-BC428451  Lithophragma trifoliatum Lowell Ahart 1980-3-26 2051 Butte Along Swedes Flat Road, near Bangor. 320 Comment
  CAS-BOT-BC342139  Logfia filaginoides A. A. Heller; H. E. Brown 1902-5-9 5515 Butte Berry Canyon (near Clear Creek) Comment
  CHSC116726  Logfia gallica Lowell Ahart 2016-5-25 20880 Butte On the north side of the water ditch, about 200 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. 44 Comment
  CHSC117003  Logfia gallica Lowell Ahart 2016-6-4 20928 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. 732 Comment
  JEPS107767  Logfia gallica Lowell Ahart 2005-5-7 11787 Butte On the east side of North Honcut Creek, Peter Ahart Ranch, about 1 1/4 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville 48 Comment
  JEPS75439  Lolium multiflorum W. L. Jepson 1934-5-4 16606 Butte 1 1/2 mi s Nord (swales of Pine Creek, near Sacramento River); near Sacramento River, Pine Creek Comment
  SEINET10894235  Lolium multiflorum Moyer 1972-4-9 MOYER 172 Butte In Chico. Sacramento Avenue, across from sportshop. Plants of CSUC Campus. 61 Comment
  UC765468  Lomatium caruifolium var. denticulatum R. F. Hoover 1938-4-24 3238 Butte 3 mi. n. Chico Comment
  CHSC63800  Lomatium dasycarpum subsp. tomentosum Gerald A. Winter 1989-4-15 10 Butte On n facing slope on s side of Big Chico Creek, ca. 100 yds e of diversion dam but before salmon hole. 76 Comment
  SEINET8693813  Lomatium macrocarpum R. McKee 1909-1 s.n. Butte Chico Comment
  JEPS110244  Lomatium marginatum var. marginatum Lowell Ahart 2006-5-8 12606 Butte North of Phantom Falls, about 3/4 mile northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 384 Comment
  CHSC90586  Lomatium utriculatum Jack Judkins 1983-4-16 14 Butte 6 mi east-southeast of Chico, 200 yds south of Butte Creek, 200 yds southeast of Covered Bridge. 274 Comment
  CHSC115688  Lonicera hispidula Emily Meigs Doe 2015-5-12 28 Butte Northern High Sierra Nevada. Plumas National Forest. About 2.75 mi. (air) NW of Forbestown. Roadside of Rd. 19N19, ap-proximately 750 ft. NE of its junction with Ponderosa Way. 746 Comment
  CHSC116577  Lonicera hispidula L. P. Janeway 2015-6-17 11780 Butte Northern High Sierra Nevada. Plumas National Forest; along east side of Lower Forbestown Road 0.15 km north of Ponderosa Way; 0.7 air-kim west-southwest of Sunset Hill. West-facing slope above the road. 815 Comment
  RSA725050  Lonicera hispidula var. vacillans L. P. Janeway 2007-6-11 9039 Butte Northern High Sierra Nevada. Plumas National Forest; along Road 20N67, 0.6 km NW of Lumpkin Road, 2.3 km W of Feather Falls town site. 777 Comment
  CAS-BOT-BC240690  Lonicera interrupta Mary E. Wall 1936-6-1 s.n. Butte Paradise Comment
  POM46195  Lonicera interrupta Helen M. Edwards 1917-6-6 s.n. Butte De Sabla. Comment
  CHSC46471  Lonicera involucrata var. involucrata Vernon Oswald 1989-6-19 3808 Butte Road between Fall River and Cascade, ca. 7.5 mi (air) NNE of Feather Falls. 1219 Comment
  UC1562430  Lotus argophyllus var. fremontii Lowell Ahart 1990-5-25 6482 Butte about .12 mi nw Enterprise Bridge across Lake Oroville (e of Enterprise Boat Launch Area, near the high water line of Lake Oroville); Lake Oroville 274 Comment
  CHSC101744  Lotus corniculatus Lowell Ahart 2009-5-23 15748 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 Highwat 32, about 10 miles northeast of Chico. 203 Comment
  CHSC66160  Lotus corniculatus Vernon H. Oswald; Lowell Ahart 1996-5-27 7671 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. In formerly irrigated pasture in the S paddock of Tract 7, Sanctuary II. 32 Comment
  SEINET10841146  Lotus grandiflorus var. macranthus Mary Susan Taylor 1981-5-5 Taylor 3617 Butte T20N R6E ne/ne sec 11 Forbestown quad. Ca. 50 ft N of spur rd from 21N35Y, ca. 0.5 mi E of Feather Falls trailhead, ca. 1 air mi E of Feather Falls community. Yellow Pine Forest; 2700 ft. 823 Comment
  JEPS114734  Lotus humistratus Lowell Ahart 2008-5-12 14755 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
  SEINET10451972  Lotus humistratus Mary Susan Taylor 1978-5-6 Taylor 1571 Butte Just N of Magalia, in large serpentine area along the Skyway. 610 Comment
  SEINET12161432  Lotus subpinnatus D. G. Bendix 1978-1 12 Butte 50 m s of Lookout Point, 7kmW of Paradise 300 Comment
  CHSC21155  Ludwigia peploides M. S. Taylor 1975-10-3 925 Butte In slough at bridge over Big Chico Creek on River Rd, ca. 10 mi w of Chico. 36 Comment
  UC725312  Lupinus A. A. Heller 1929-6-21 14896 Butte Cana Comment
  SEINET10838349  Lupinus Mary Susan Taylor, Vernon H. Oswald 1984-4-4 Taylor 5388 Butte T23N R3E sec 28? S side of Humbug Rd, 3.1 mi W of Nimshew, ca. 10 air mi NE of Chico. Foothill Woodland. Comment
  CHSC95163  Lupinus albicaulis R. D. Fischer 2004-6-20 816 Butte Chico Meadows. Northern Sierra Nevada, n. of Forest Ranch, 5 miles w. of Hwy 32 off Humboldt Road to Butte Meadows and ca. 3 miles to Chico Meadow (Camp Lassen, BSC) on Scout Road. 1280 Comment
  CHSC115452  Lupinus albifrons M. Sutton; C. Yasuda, S. Luse 2013-4-9 23 Butte Centerville Flumes. 350 Comment
  CHSC55698  Lupinus albifrons Ben Cunningham 1991-4-20 Butte Ca. .7 mi s of Lunt road and 4 ft e of Highway 70, 65 mi s of Greenville. 457 Comment
  CHSC901  Lupinus albifrons R. Carter 1964-3-23 64 Butte 5 mi. E of Chico Rd. on Cherokee Rd. on rocky bank on E side of road. 60 Comment
  SEINET12164082  Lupinus albifrons Unknown 1984-1 5 Butte Oroville. ca 50 yds W of State Hwy. 70 .4miS of junc w/ Oroville Dam Blvd 46 Comment
  CAS-BOT-BC201356  Lupinus albifrons var. albifrons Charles Piper Smith 1949-4-21 49124 Butte Nimshew - 2.0 miles southwest - Chico Rd. Comment
  RSA0072104  Lupinus bicolor Daisie Huang 2006-4-15 06041566 Butte Upper Bidwell Park, Horseshow Lake. 114 Comment
  CHSC108836  Lupinus bicolor var. tridentatus Lowell Ahart 2012-4-17 17874 Butte Bare areas where cobbles were removed for Oroville Dam, about 100 yards south of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. 35 Comment
  CHSC82216  Lupinus bicolor var. tridentatus Lowell Ahart 2002-4-14 9488 Butte Area between the Railroad and the Midway Road, 50 yards north of Nelson Dlavo Road, in Nelson. 36 Comment
  SEINET10485236  Lupinus densiflorus var. lacteus W. E. Hartman 1972-4-29 Hartman 7 Butte Corolla white; fls fragrant. Locally abundant on cliff by centerville rd. .6 Mi. N of centerville cemetary. Rocky, sandy loam. Assoc: trifolium Tridentatum. 244 Comment
  SEINET11071881 Image available Lupinus densiflorus var. palustris J. A. Sheldahl 1968-4-20 30 Butte Table Mountain, Oroville 335 Comment
  CDA13259  Lupinus grayi G. F. Hrusa, T. D. Wilfred 1996-7-9 13110 Butte Plumas National Forest; Nr. headwaters of Jordan Creek, S of Hwy 162 near Roger's Cow Camp. Comment
  CDA13329  Lupinus grayi G. F. Hrusa, T. D. Wilfred 1996-7-9 13175 Butte Sierra Nevada; at S end of 22N12X. Approx. 0.5 m. on 22N89 and 22N12x. Immed. S of Rogers Cow Camp on Hwy 162. Comment
  CHSC46561  Lupinus lepidus var. sellulus V. Oswald 1989-7-12 3847 Butte Road between Jones Meadow and Lotts Lake, ca. 3 mi (air) se of Philbrook Reservoir. 1901 Comment
  UC478506  Lupinus lepidus var. sellulus E. B. Copeland 1931-7-3 651 Butte Jonesville , Colby Canyon (Coby Canyon) 1600 Comment
  UC85081  Lupinus lepidus var. sellulus R. M. Austin July 1896 701 Butte Colby Comment
  UC726687  Lupinus microcarpus var. densiflorus A. A. Heller 1942-4-26 16437 Butte s of the Oregon City Road junction Table Mountain (Table Mountain) Comment
  UCD108702  Lupinus microcarpus var. densiflorus A. A. Heller 1915-5-4 11866 Butte two miles east of Durham. Comment
  CHSC34688  Lupinus nanus M. S. Taylor 1981-5-1 3588 Butte E side of Hwy 70, ca. 4 air mi nw of Oroville. 91 Comment
  RSA0072103  Lupinus nanus Daisie Huang 2006-4-15 06041567 Butte Upper Bidwell Park, Horseshoe Lake. 114 Comment
  SD239747  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 (82a^z) of Gridley. 91 Comment
  UC204540  Lupinus nanus A. A. Heller 1914-4-21 11311 Butte Chico Comment
  POM253156  Lupinus nanus subsp. latifolius A. A. Heller 1938-4-14 15034 Butte Summit of Table Mountain. 610 Comment
  RSA638251  Lupinus nanus subsp. nanus Michael A. Vincent, Ethan H. Freid, Karl Vincent 1998-4-6 8117 Butte Table Mountain. Comment
  JEPS108851  Lupinus nanus var. vallicola Lowell Ahart 2006-5-8 12594 Butte About 300 yards south of the three Gray Pines on the rim of Coal Canyon, about 2 miles northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 337 Comment
  SEINET7040276 Image available Lupinus pachylobus A. G. Vestal 1963-5-9 s.n. Butte North of Oroville on Alternate 40 [presently Route 70]. Oroville Quadrangle UTM Zone 10, 620674mE, 4386722mN. Comment
  CAS-BOT-BC329253  Lupinus stiversii Lowell Ahart 1982-6-15 3547 Butte About 1.5 miles E of Camp 18, about 8 miles E of Feather Falls. 1000 Comment
  CHSC33674  Lupinus succulentus L. Ahart 1981-5-16 2806 Butte In Graylodge Waterfowl Mgmt Area, 11 mi sw of Gridley. 35 Comment
  SEINET10490272  Lupinus superbus var. elongatus A. Arthur Heller 1938-7-20 Heller UMO 71624 Butte Moist grassy places near clumps of willows, upper end of snag lake, 7 mi e of Chaparral in the arid transition life zone. 1524 Comment
  CAS-BOT-BC329251  Lupinus vallicola Lowell Ahart 1980-5-17 2310 Butte Sierra Nevada. 0.5 mi SE of Hurleton. 600 Comment
  POM24038  Lupinus vallicola subsp. vallicola C. C. Bruce 1897-05 2034 Butte Butte Creek. Comment
  RSA79047  Lupinus vallicola subsp. vallicola E. K. Balls, Percy C. Everett, B. K. Balls 1952-10-14 18216 Butte 2.6 miles SW of Butte-Plumas County line. Highway 24. 274 Comment
  HSC95781  Luzula comosa Jim Jokerst, Robert A. Schlising, L. Ahart 1982-5-8 1563 Butte 2.5 mi E of Forbestown along rd. to Forbestown reservoir, just S of creek Comment
  CAS-BOT-BC320471  Luzula comosa var. laxa Peter F. Zika 2011-7-6 25530 Butte Mooreville Ridge Road, 0.4 road miles N of dam on Lost Creek Reservoir, northern Sierra Nevada Highlands (n SNH) 1025 Comment
  UC398896  Luzula comosa var. laxa E. B. Copeland 1929-7-16 345 Butte Jonesville 1550 Comment
  JEPS113269  Luzula comosa var. subsessilis Lowell Ahart 2007-5-29 13951 Butte On the north side of the Dome Trail, trail leads to the Middle Fork of the Feather River, about 100 yards northeast of the trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Big Bald Rock, about 16 miles (air) northea 844 Comment
  CHSC96839  Luzula macrantha Lowell Ahart 2007-5-29 13951 Butte On the north side of the Dome Trail, trail leads to the Middle Fork of the Feather River, about 100 yards northeast of the trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Big Bald Rock, about 16 miles (air) northeast of Oroville. 844 Comment
  RSA754921  Lychnis coronaria L. Ahart 2008-6-13 14826 Butte Banks of Oregon Gulch, bottom of an old gold mined area, about 400 yards southwest of the cemetery, about 10 air miles northeast of Oroville. Comment
  CHSC71400  Lycopus americanus Lowell Ahart 1998-7-18 8042 Butte Southwest side of the lone oak tree, west of the cow chute on the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CHSC47441  Lythrum hyssopifolia Lowell Ahart 1975-7-19 902 Butte Growing along the edges of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 1/2 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC74097  Lythrum hyssopifolia B. Castro; L. P. Janeway 1996-5-19 662 Butte Ca 3 air mi NE of Chico, in Upper Bidwell Park on spine of ridge between Sycamore and Big Chico Creeks, just S of North Rim Trail. 320 Comment
  JEPS127071  Lythrum hyssopifolia Lowell Ahart 2016-5-30 20897 Butte Peter Ahart Ranch, about 2 1/2 miles north and 1/4 mile east of Honcut, about 12 miles (air) south of Oroville. Comment
  UC108060  Lythrum hyssopifolia Mrs. R. M. Austin Apr, 1899 840 Butte Butte County Comment
  JEPS120768  Lythrum portula Lowell Ahart 2013-9-20 19060 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
  JEPS113572 Image available Lythrum salicaria Lowell Ahart 2007-7-27 14392 Butte On the south strand of Thermalito Afterbay, about 200 yards north of Highway 162, about 5 miles west of the intersection of Highway 162 and Highway 70, about 5 1/2 miles (air) west of Oroville 36 Comment
  CAS-BOT-BC342706  Madia elegans A. A. Heller; H. E. Brown 1902-5-10 5518 Butte Berry Canyon (Near Clear Creek) Comment
  CAS-BOT-BC342725  Madia elegans H. E. Brown 1897-4-15 196 Butte Collected near Clear Creek Comment
  CAS-BOT-BC344320  Madia exigua Lowell Ahart 1980-5-17 2307 Butte 1/2 mile south-east of Hurleton 600 Comment
  RSA718336  Madia exigua L. Ahart 2006-6-9 12650 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
  CHSC26671  Madia glomerata M. S. Taylor; M. Hayes, R. Schlising 1977-8-17 1456 Butte On e side of Humbug Rd, ca. 4.5 mi ne of Butte Meadows turnoff from Hwy 32. 1326 Comment
  CHSC97018  Madia gracilis L. P. Janeway 2007-7-26 9072 Butte Northern High Sierra Nevada. Plumas National Forest; about 160 m. west of the French Creek Road crossing of French Creek near the mouth of Ram Creek. 622 Comment
  CHSC97423  Madia gracilis Robert Fischer 2006-5-29 1016 Butte Chico. Sierra Nevada foothills, adjacent Hwy. 32, below Forest Ranch in the Big Chico Creek Ecological Reserve off Lookout Trail. 274 Comment
  CAS-BOT-BC342959  Madia gracilis A. A. Heller No date on label 12816 Butte Butte Meadows 1402 Comment
  SEINET10536496  Mahonia dictyota Lowell Ahart 1983-4-14 Ahart 3935 Butte Ca. 3/4 mi w of Forbestown Reserv., ca. 3.4 mi ne of Forbestown. Yellow Pine Forest; 450 m. 450 Comment
  CHSC76037  Malacothrix floccifera G. F. Hrusa; T. D. Wilfred 1996-7-9 13187 Butte Sierra Nevada. Plumas National Forest. [Original Lat./Long. on label is '39 45 N; 121 18 W']. 1150 Comment
  JEPS87518  Malacothrix floccifera Lowell Ahart 1993-6-26 7028 Butte about 1 mi w Lost Creek Reservoir (w side of the dirt road); Mooreville Ridge 1188 Comment
  JEPS119992  Malva nicaeensis Lowell Ahart, Linnea Hanson, Kaline Le Coq, Josephine Guardino 2012-4-27 17909 Butte Near the intersection of Valllombrosa Avenue and Manzanita Avenue, Lower Bidwell Park, Chico. Comment
  CHSC44978  Marah fabacea J. Witzman 1987-3-7 6 Butte Along Butte Creek nr Humbug Rd. ca 3 mi n of jct with Skyway, se of Chico. 97 Comment
  CHSC8557  Marah fabacea var. agrestis M. MacArthur 1968-6-18 211 Butte E side Big Chico Creek and just S of bridge by PSA bld., Chico State College. 60 Comment
  CDA34161  Marrubium vulgare L. Ahart 2009-4-22 15581 Butte On the east side of the trail, Upper Bidwell Park, just west of the intersection of Highway 32 and Ten Mile House Road. Approximately, 10 miles northeast of Chico. Comment
  CDA42742  Marsilea vestita subsp. vestita L. Ahart 2002-5-15 9659 Butte About 100 yards east of Parking Lot 10, Gray Lodge State Wildlife Management Area, about 4 miles (air) southwest of Gridley. Comment
  CHSC101971  Matricaria discoidea J. Boze 1982-5-8 442 Butte On edge of parking area at shooting range, Upper Bidwell Park, Chico. Comment
  CHSC42459  Matricaria discoidea Lowell Ahart 1987-5-6 5504 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CAS-BOT-BC348088  Matricaria discoidea Lowell Ahart 1987-5-6 5504 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  HSC93376  Medicago arabica L. Ahart 1995-5-30 7587 Butte Edge of Beatson Hollow Creek, about 1 mi. NW of Cherokee Road, N Table Mountain, about 7 mi. N of Oroville 305 Comment
  CDA31966  Medicago lupulina L. Ahart 2009-6-12 15842 Butte 10 yards north of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove, Lower Bidwell Park, Chico. Comment
  SEINET12155163  Medicago orbicularis P. L. Ricker 1912-1 3941 Butte Chico Comment
  CHSC71175  Medicago polymorpha Lowell Ahart 1998-6-9 7978 Butte On the east side of Cherokee Road, about 200 yards south of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  HSC32649  Medicago polymorpha Patricia Datzman 1974-4-20 17 Butte 300 yards S of intersection of Pentz Rd. and Clarke Rd. Comment
  SEINET10871260  Medicago polymorpha var. brevispina Lowell Ahart, James D. Jokerst 1985-3-24 Ahart 4858 Butte West of Lunt Road, about 1/2 mile north of the inter- section of Lunt Road and Highway 70, north of Yankee Hill. Comment
  CHSC39594  Medicago praecox Lowell Ahart 1983-4-10 3924 Butte On a steep sidehill, about 1 1/2 miles northeast of Highway 99 and Pentz Road. 100 Comment
  JEPS119599  Medicago praecox Lowell Ahart 2012-4-9 17836 Butte West of South Rim Trail, south part of Upper Bidwell Park, about 2 1/4 miles (air) northeast of Chico. Comment
  SEINET12155149  Medicago sativa P. L. Ricker 1912-1 3920 Butte Chico Comment
  SEINET12155151  Medicago scutellata P. L. Ricker 1912-1 3966 Butte Chico Comment
  CAS-BOT-BC282051  Melica fugax H. F. Copeland 1932-6-29 s.n. Butte Jonesville 1550 Comment
  CHSC49558  Melica fugax Vernon Oswald; Lowell Ahart 1987-5-14 2399 Butte Ca. 2.5 mi ne of Jonesville on the road paralleling Scotts John Creek, 0.6 mi n of the road connecting Humboldt and Humbug Roads. In forest on the w side of the creek. 1780 Comment
  CHSC110453  Melica harfordii L. P. Janeway 2013-5-20 11112 Butte Northern High Sierra Nevada. Plumas National Forest; mid-slope North Fork Feather River canyon 0.8 air km west-northwest of Cresta Powerhouse, along Camp Creek Road 0.2 road km northeast of Dixie Road. 646 Comment
  CHSC113426  Melica harfordii Lowell Ahart 2014-7-7 19560 Butte About 20 yards east of the Skyway, about one-mile north of Stirling City. 1142 Comment
  CHSC11977  Melica subulata E. B. Copeland 1929-7-16 338 Butte Jonesville. 1550 Comment
  CHSC88191  Melica subulata Lowell Ahart 2004-7-23 11300 Butte On the east side of the road, north of the West Branch Campground, south of the Bridge across the West Branch of the Feather River, about 1 1/2 miles (air) west of Philbrook Reservoir Dam, about 3 3/4 miles (air) southeast of Butte Meadows. 1456 Comment
  CHSC58288  Melica torreyana Lowell Ahart 1992-5-9 6766 Butte On the west side of a stream, east of Cherokee Road, Lake Oroville Recreation Area, about 2 (air) miles north of Oroville. 91 Comment
  UC4586585  Melica torreyana Vernon H. Oswald and Lowell Ahart 1991-5-13 4584 Butte between Canyon Drive and Oroville Dam Blvd East (opposite spillway) Dan Beebe Trail; Lake Oroville Recreation Area Comment
  UCD107993  Melilotus albus L. Ahart 1982-7-10 3670 Butte 1/4 mi se of HQ, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. Comment
  CHSC753  Melissa officinalis V. Holt; M. Underhill 1952-7-21 Butte 304 Comment
  JEPS115357  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
  CHSC94013  Mentha canadensis R. Fischer 2004-6-12 685 Butte Collected from Bidwell Park near the bottom of 10 Mile House Road, east side of Big Chico Creek, near north end of park property. Plants were growing at the edge of perennial meadow drainage. 219 Comment
  SBBG128021  Mentha spicata L. Ahart 2011-8-17 17624 Butte ca. 20 yards S of the trail, S of the crossing and on the E side of Big Chico Crk, ca. 50 yards W of Ten Mile House Rd, Upper Bidwell Park, ca. 0.75 mi W of Hwy 32, ca. 10 mi NE of Chico 203 Comment
  SD3167  Mentzelia dispersa E. B. Copeland 1929-7-19 385 Butte Jonesville. Found on two rocks-slides in full sunlight, along Butte Creek. Comment
  CHSC38540  Mentzelia laevicaulis Vernon Oswald 1983-8-2 946 Butte Upper Bidwell Park, Chico, on the n side of Lindo Channel ca. 100 ft e of Manzanita Ave. 79 Comment
  CHSC42936  Mentzelia laevicaulis Lowell Ahart 1987-7-3 5783 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
  CHSC50109  Menyanthes trifoliata Vernon Oswald 1990-5-9 4194 Butte Boy Scout Camp at Chico Meadows, ca. 1 mile north of Butte Meadows. Growing in a boggy area on the seepy slope slightly northeast of the 'swimming hole. 1295 Comment
  CHSC1673  Micranthes californica R. Carter 1964-3-28 70 Butte 8 mi. E of Oroville at 6110 Woodleaf St. Rt. ca. 10 yds. W of entrance to driveway. 121 Comment
  CHSC21148  Micranthes californica M. S. Taylor 1975-3-10 416 Butte On s side of Butte Creek, ca. 1/4 mi w of Covered Bridge, ca. 8 mi e of Chico. Comment
  CHSC29229  Micranthes californica M. S. Taylor; J. D. Jokerst, L. Ahart 1980-4-6 2436 Butte SE corner of jct of Rocky Honcut Creek and Swedes Flat Rd, ca. 2 mi e of Oroville-Bangor Hwy, ca. 10 mi s of Oroville. 365 Comment
  CHSC44351  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
  CHSC4637  Micranthes californica R. Carter 1966-4-26 360 Butte Found ca. 10 mi. NE of Oroville along W side of USFS road 21N40 to Bloomer Mt., along roadside .5 mi. W from intersection with Oroville-Quincy Rd. 701 Comment
  CHSC3350  Micranthes integrifolia Robert L. Smith 1966-3-4 43 Butte Upper Bidwell Park, 7 mi. NE of Chico. Comment
  CHSC58955  Micranthes odontoloma Lowell Ahart 1992-7-26 6852 Butte On the edges of a small stream, about 1/2 mile north of the Carr Mine, about 2 (air) miles south of Snow Mountain. 1798 Comment
  CAS-BOT-BC429202  Micranthes oregana A. A. Heller 1914-6-22 11493 Butte Chico Meadows 1219 Comment
  CHSC88864  Micropus californicus Christine Hantelman 2000-4-2 59 Butte 1.5 mi east on Wookey Road. 112 Comment
  UCSB63614  Micropus californicus var. californicus Cooley, Patrick 1990-4-7 Butte Humbolt Rd. ca. 2 mi. e of Chico, Butte Co.; Chico Quadrangle, 7.5', SW 1/4 of NE 1/4 of SW 1/4 Sect. 21, T22N, R2E 152 Comment
  CAS-BOT-BC348880  Microseris douglasii subsp. douglasii Lowell Ahart 1979-5-11 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  SEINET10474318  Microseris lindleyi Mary Susan Taylor 1980-4-18 Taylor 2531 Butte On dry open bluff, on E side of Humbug Road, ca. 3 mi SW of Nimshew; Foothill Woodland. With J.D. Jokerst. 518 Comment
  UC473559  Microseris sylvatica L. S. Rose 1931-4-12 Butte Honcut Comment
  UC886107  Mimulus bicolor A. A. Heller 1915-5-28 11905 Butte near Cohasset; Sierra Foothills Comment
  SEINET12319568  Mimulus cardinalis J. P. Kroessig 1977-1 21 Butte along E bank of West Branch Feather River, ca 13 km WNW of Paradise 488 Comment
  JEPS5550  Mimulus glaucescens R. F. Hoover 1936-5-21 1158 Butte 3 mi n Chico Comment
  RSA0087957  Mimulus glaucescens Christopher T. Ivey 2013-5-9 379 Butte Platte Mountain.Above W branch of Butte Creek. About 1.5 km S of Hwy 32/Carpenter Ridge Rd. intersection along old logging road. 880 Comment
  RSA309183  Mimulus glaucescens Robert F. Hoover 1936-5-21 1158 Butte 3 miles north of Chico Comment
  RSA792429  Mimulus glaucescens Dena Grossenbacher, Brian Green 2008-5-4 815 Butte Upper Bidwell Park on banks of Lindo Diversion Channel north of Centennial Ave. 80 Comment
  JEPS80613  Mimulus guttatus M. S. Taylor 1980-4-18 2501 Butte ca. 1 mi s Nimshew (ca. 1/4 mi e of Nimshew Rd.); Paradies quad. 609 Comment
  JEPS81221  Mimulus guttatus L. R. Heckard and J. C. Hickman 1981-4-18 5496 Butte 3 mi ne Kiefer road junction (on Cohasset Road, ne of Chico) 243 Comment
  SEINET5561543  Mimulus guttatus H. S. Gentry, S. Koch 1962-1 19782 Butte 6 mi. NE of USDA Field Station, Chico, along road to Centerville. Comment
  HSC32396  Mimulus kelloggii R. A. Vanbianchi 1974-4-20 233 Butte Table Mtn. 305 Comment
  CHSC113404  Mimulus moschatus Lowell Ahart 2014-7-2 19538 Butte On the south side of the County Road, about one mile west of the intersection of County Road and Lumpkin Road, about 7 miles northeast of Feather Falls. 1260 Comment
  UC196165  Mimulus tricolor A. A. Heller 1914-4-24 11314 Butte Chico-Oroville rd 8 mi from Chico Comment
  CAS-BOT-BC174595  Minuartia californica H. E. Brown 1897-3-3 143 Butte Near Clear Creek 53 Comment
  RSA715728  Minuartia californica L. P. Janeway 2005-3-1 8341 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Rd. 1.8 km northeast of Bruce Road. 134 Comment
  SD2102  Mitella pentandra E. B. Copeland 1930-6-24 644 Butte Jonesville, damp woods 1500 Comment
  CHSC43938  Modiola caroliniana Vernon Oswald 1988-4-5 3268 Butte Chico Tree Improvement Center (former USDA Plant Introduction Station) located in southeast Chico. In the southeast corner of the greenhouse complex. 70 Comment
  CDA3371  Mollugo verticillata L. Ahart 2002-10-17 9983 Butte About 1 1/2 miles south of Highway 162 (Oroville Quincy Highway), about 3 miles (air) northeast of Oroville Dam. On the gentle hills below the high water line of Lake Oroville. Comment
  CDA3374  Mollugo verticillata L. Ahart 1998-7-1 8029 Butte 20 yards south of an east west fence, in the tracks of a poor dirt road, about 5/8 mile north of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  CHSC42101  Mollugo verticillata Lowell Ahart 1986-11-7 5424 Butte In a prune orchard, east of the Feather River, north of the Oroville Gridley Highway, about 3 miles east of Gridley. 28 Comment
  CHSC42118  Mollugo verticillata Lowell Ahart 1986-11-14 5478 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
  JEPS115646  Mollugo verticillata Lowell Ahart 2009-8-13 16274 Butte In the channel, about 100 yards east of the diversion structure that controls Mud Creek diversion and Lindo Channel, northeast of Hooker Oak, Upper Bidwell Park, Chico 68 Comment
  CHSC761  Monardella breweri subsp. lanceolata V. Holt 1931-6-3 Butte Forest Ranch. 548 Comment
  CHSC65566  Monardella odoratissima R. Banchero 1981-6-26 530 Butte Oak Point where Keyser Ck runs through. 1487 Comment
  SD6867  Monardella odoratissima subsp. pallida Daniel Cleveland 1882-7-14 Butte Comment
  CHSC109560  Monardella sheltonii L. P. Janeway 2012-6-23 10888 Butte Northern High Sierra Nevada. Southwest spur of Rocky Ridge, 0.6 air km south of Batchelor Point; along Road 23Np6E 0.8 road km southeast of Rim Road/Ponderosa Way. 895 Comment
  CHSC93083  Monardella sheltonii L. P. Janeway 1994-6-23 4672 Butte Northern Sierra Nevada Foothills. Pinkston Canyon Road about 400 ft east of Concow Road. 563 Comment
  CAS-BOT-BC220448  Monardella sheltonii John Thomas Howell 1973-7-9 49691 Butte NE. of Pulga Bridge, Feather River highway 417 Comment
  SEINET10895146  Monardella sheltonii A. Graff 1993-7-23 Graff 343 Butte Plumas National Forest. Hwy. 70 southwest to Oroville from Arch Rock, at a turnout on the right. Mixed hardwood-conifer forest. Past bloom. Comment
  UC2035834  Monardella villosa subsp. villosa Chester Dudley 1940-6-1 Butte near Magalia Comment
  UCD39222  Monochoria vaginalis Beecher Crampton 1957-9-17 4628 Butte 5 miles northwest of Biggs. Biggs Rice Experiment Station. Comment
  UC1564781  Monolepis nuttalliana V. Oswald and L. Ahart 1989-6-27 3833 Butte ca. 3.3 mi. (air) s.e. Jonesville (Humbug Rd. at Butte Creek House, along Butte Creek); Butte Creek 1767 Comment
  SEINET10572756  Montia Mary Susan Taylor 1980-5-27 Taylor 2652 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
  SEINET10572724  Montia fontana subsp. chondrosperma Mary Susan Taylor, Vernon H. Oswald 1984-4-4 Taylor 5384 Butte T23N R3E se sec 33? S side of Humbug Rd, ca. 6 mi NE of Honey Run Covered Bridge, ca. 10 air mi NE of Chico. Foothill Woodland; 1220 ft elev. 372 Comment
  SEINET10572665  Montia linearis Mary Susan Taylor 1981-5-22 Taylor 3801 Butte T23N R4E sw/sw sec 24, Pulga quad. In Flea Valley, ca. 100 ft E of jct of Ponderosa Way and turnoff to Sawmill Peak, ca. 2 ft N of Sawmill Peak Rd, ca. 4 air mi E of Magalia. 3700 ft. 1128 Comment
  CHSC12406  Montia parvifolia Lowell Ahart 1973-5-31 Butte Near Little North Fork, Feather River. 1066 Comment
  JEPS119751  Morus alba Lowell Ahart 2012-5-17 18088 Butte On the south edge of Big Chico Creek, east of the Deer Pen, between Table 12 & 13, Lower Bidwell Park, Chico. Comment
  CHSC94655  Muhlenbergia andina Lowell Ahart 2006-9-28 13381 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
  JEPS110303  Muhlenbergia andina Lowell Ahart 2006-9-11 13306 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
  JEPS98275  Muhlenbergia filiformis Lowell Ahart 2000-6-29 8548 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
  SEINET256564 Image available Muhlenbergia jonesii Lowell Ahart 1985-10-12 5198 Butte Near the east side of Kunkle Rexervoir about 2 miles south of Paradise. 503 Comment
  JEPS100187  Muhlenbergia mexicana Lowell Ahart 2006-8-15 13174 Butte North edge of a wet area west of a large open meadow with bogs, 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
  UC600785  Muhlenbergia minutissima H. F. Copeland 1930-7-29 1347 Butte Jonesville 1828 Comment
  CHSC45215  Muhlenbergia rigens Lowell Ahart 1977-10-19 1602 Butte On the banks of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC94794  Myriophyllum aquaticum L. P. Janeway; B. Castro, Laurie Archambault 2006-1-16 8554 Butte Sacramento Valley. Gray Lodge Wildlife Area; in shallow sluggish canal between the main waterfowl viewing parking area and the headquarters area. 18 Comment
  JEPS88529  Najas gracillima Vernon H. Oswald and Lowell Ahart 1996-6-22 8093 Butte U.S. Fish and Wildlife Service parcel between Seven Mile Lane and Sacramento River. 32 Comment
  UCR146291  Najas guadalupensis Ellen Dean, Et al. 2001-8-20 852 Butte Biggs UC Field Station; N of town of Biggs, west of jct. of Hwys 99 and 162; north side of Mailton Road, c. 1/8 mi east of jct. with Riceton Hwy; along second N-S running dirt road leading N into rice field, at intersection with first E-W running dirt road, corner of rice field 100 Comment
  SEINET3237609  Najas guadalupensis subsp. guadalupensis J. M. Tucker 1953-8-28 2682 Butte Biggs Rice Experiment Station. Comment
  JEPS102936  Narthecium californicum L. P. Janeway, B. Castro 2002-7-7 7606 Butte High Cascade Range. Soggy sedge-dominated meadow below the head of Keyser Creek and just below the dirt road; 0.5 km east of Bald Mountain Lookout 1695 Comment
  SBBG17025  Nasturtium officinale M. Vincent 1962-4-18 210 Butte Butte Crk Cyn near Humbug Rd, 1 mi E of old covered bridge Comment
  CHSC34704  Navarretia divaricata M. S. Taylor 1978-7-19 1764 Butte On e side of Upper Scots John Rd, ca. 3 mi n of its jct with Scots John Rd. ca. 7 mi ne of Jonesville. 1889 Comment
  CHSC36817  Navarretia divaricata D. H. Ikeda 1980-5-26 383 Butte Cohasset Ridge, s of Cohasset. 426 Comment
  UC1124097  Navarretia divaricata P. L. Johannsen 1936-7-17 937 Butte 2.5 mi sse Butte Meadows; Lassen National Forest, Paynes Creek Quad. 1554 Comment
  CHSC1292  Navarretia divaricata subsp. vividior M. Roberson 1956-5-21 Butte SW of Paradise, along Skyway. 426 Comment
  CHSC65457  Navarretia divaricata subsp. vividior Vernon Oswald 1986-5-6 1999 Butte Cohasset Ridge along the dirt road paralleling Cohasset Hwy on the south. 457 Comment
  CHSC27034  Navarretia filicaulis Robert A. Schlising 1978-6-11 3290 Butte Cohasset Road, below Cohasset, 5.5 mi NE of crossing of Mud Creek and 5.3 mi above (NE) jct rd to Richardson's Springs; ridge top. Comment
  CHSC44416  Navarretia intertexta Lowell Ahart 1988-6-23 6078 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
  CHSC91455  Navarretia intertexta subsp. intertexta Lowell Ahart 2005-7-13 12147 Butte About 10 yards east of the intersection of Forbestown Road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown, about 12 miles (air) east of Oroville. 759 Comment
  CHSC71121  Navarretia leucocephala subsp. leucocephala Jan Monelo 1989-4-26 18 Butte 50 yds s of intersection of Broyles Rd and Hwy 99, ca 12 mi n of Chico; rim of drainage, ca 20 yds w of Hwy 99. 106 Comment
  CAS-BOT-BC233622  Navarretia pubescens A. A. Heller; H. E. Brown 1902-5-14 5477 Butte Berry Canyon, near Clear Creek Comment
  CHSC105275  Navarretia pubescens Lowell Ahart 2010-6-20 16834 Butte About 3/8 miles 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
  JEPS115871  Navarretia pubescens Lowell Ahart 2009-5-23 15727 Butte About 20 yards east fo 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 235 Comment
  JEPS117332  Navarretia pubescens Lowell Ahart 2010-6-20 16834 Butte About 3/8 miles 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
  CHSC12060  Navarretia tagetina K. J. Hislop 1970-5-10 127 Butte Found on Hwy. 70 ca. 5 mi. n of Yankee Hill. 213 Comment
  CHSC37265  Nemacladus capillaris L. Ahart 1982-6-15 3570 Butte Near a seep, ca. 1.5 mi e of Camp 18, ca. 8 mi e of Feather Falls. 1000 Comment
  NY337163  Nemophila alata H. E. Brown 1897-3-3 173 Butte Clear Creek Comment
  NY337170  Nemophila glauca Mrs. C. C. Bruce 2037 Butte Comment
  UC606887  Nemophila heterophylla L. Constance, J. L. Morrison 1938-4-30 2177 Butte 8 mi n Chico (between Big Chico Creek and Little Chico Creek); Sierra Nevada foothills, btw Big Chico Creek and Little Chic 609 Comment
  CHSC4019  Nemophila menziesii E. P. Parreno 1967-4-12 Butte Honey Run Road ca. 7 yards after the bridge beside the road. Comment
  UCD80356  Nemophila parviflora CNPS SN Foothill Team 2005-3-29 SNFN 0026 c Butte CDFG, North Table Mountain Wildlife Area, near the eastern boundary of the Table Mt. Ecological Reserve. 356 Comment
  RSA3786  Nemophila pedunculata A. A. Heller 1922-3-19 13606 Butte Near Clear Creek. Comment
  SEINET10497062  Nemophila spatulata Mary Susan Taylor 1982-6-24 Taylor 4741 Butte T23N R4E ne/nw sec 13. Pulga SW quad. Rag Dump 5, ca. 2 mi n of Flea Mt, ca. 10 mi n of Jarbo Gap on Hwy 70. Elev ca. 3800 ft. 1158 Comment
  SEINET13711422  Nicotiana acuminata Lowell William Ahart, Lowell William Ahart 1999-1 8135 Butte 12 Mi. SW of Chico, 2 Mi. SE Ordbend, Sacramento River Comment
  CHSC42103  Nicotiana glauca Lowell Ahart 1986-11-7 5415 Butte Along the Feather River, along the Oroville Gridley Highway, about 3 miles east of Gridley. 28 Comment
  UCSB62940  Notholithocarpus densiflorus Sarr, Dan 1995-7-29 Butte 5 mi N of Forest Ranch 304 Comment
  UCD18873  Odontostomum hartwegii Vernal Pool Team 2001; Carol Witham and Jennifer Buck 2001-5-3 182 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
  POM110257  Odontostomum hartwegii C. C. Bruce 1897-04 1837 Butte Butte Creek Comment
  UC601005  Orobanche californica subsp. grayana E. B. Copeland 1938-9-13 Butte Jonesville. Comment
  JEPS124297  Orobanche fasciculata Lowell Ahart 2015-4-13 20034 Butte About 2 1/2 miles (air) north of Jarbo Gap, about 17 miles (air) north of Oroville. Comment
  CAS-BOT-BC499848  Orobanche fasciculata Roxana S. Ferris 1952-5-16 12483 Butte Flat above canyon of Butte Creek, about 2 mi W of Paradise on Chico Rd. 457 Comment
  JEPS26743  Orobanche fasciculata P. C. Hutchison 1961-6-9 2095 Butte Canyon of the north fork of the Feather River along highway US, 1 mile south of (above) Pulga Bridge. Comment
  CHSC51081  Orthilia secunda Pauleen Broyles 1987-7-19 1077 Butte Ca. 72 km (air) ne of Inskip. at edge of small lake. 526 Comment
  SEINET10549670  Orthocarpus erianthus Mary Susan Taylor 1980-3-1 Taylor 2325 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
  SEINET10549699  Orthocarpus lithospermoides Mary Susan Taylor 1980-4-18 Taylor 2533 Butte On dry open bluff, on E side of Humbug Road, ca. 3 mi SW of Nimshew; Foothill Woodland. With J.D. Jokerst. 518 Comment
  POM197062  Orthocarpus purpurascens H. F. Copeland 1929-5-4 20 Butte Near Chico. Comment
  JEPS93985  Osmorhiza brachypoda Vernon H. Oswald 1998-7-9 9253 Butte Feather Falls Trail starting at end of Bryant Ravine Rd. n. of town of Feather Falls (ca. 0.4 mi. n. of the trailhead near the junction of the upper and lower trails) 701 Comment
  CHSC42640  Osmorhiza occidentalis Vernon Oswald 1985-7-21 1908 Butte Jones Meadow Rd. ca. 0.1 mi s of its jct. with the dirt road coming in from Inskeep, ca. 0.7 air mi wnw of Jones Meadow Lake. 1737 Comment
  CHSC20516  Oxalis rubra M. S. Taylor 1975-6-25 808 Butte In lawns, 1456 Arcadian, Chico. 60 Comment
  CAS-BOT-BC316895  Packera eurycephala var. lewisrosei John Thomas Howell 1962-6-16 37555 Butte Magalia 731 Comment
  CHSC93509  Packera eurycephala var. lewisrosei Lowell Ahart 2006-5-10 12616 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
  CHSC71269  Panicum acuminatum var. acuminatum Lowell Ahart 1998-7-1 8019 Butte South margins of a stream, below or west of a large seep, west of the lone oak tree, west of the cow chute on the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 396 Comment
  CHSC86531  Panicum acuminatum var. acuminatum L. P. Janeway; John Hunt 2003-7-1 7862 Butte Northern High Sierra Nevada. Along east edge of Middle Fork Feather River arm of Lake Oroville, 1.2 km southwest of mouth of Frey Creek 280 Comment
  UCD89584  Panicum dichotomiflorum Beecher Crampton 1963-9-9 6885 Butte Honcut. Comment
  CHSC112934  Parentucellia viscosa B. Castro 2012-6-21 1930 Butte Sacramento Valley. CA 3 air mi E of Hyw 99, off SE corner of Thermalio Afterbay ca 0.5 mi NE of the Afterbay outlet and ca 400 ft NW of Larkin Road 42 Comment
  CHSC49018  Parentucellia viscosa Vernon Oswald 1986-5-26 2045 Butte Wyandotte-Miner's Ranch Rd. 0.6 mi s of Olive Hwy. 249 Comment
  CHSC78171  Parentucellia viscosa Lowell Ahart 2000-5-23 8385 Butte In a seepy area along a large wash, northeast of the pond, about 1/8 mile north of La Porte Road, about 1/2 mile southeast of the Honcut Cemetery, about 4 miles northeast of Honcut, about 13 miles (air) southeast of Oroville. 54 Comment
  UCD77900  Parentucellia viscosa Robert E. Preston 2003-5-11 2131 Butte ca. 2.25 mi W of Pentz, along Pentz Rd, ca. 0.5 mi E of Clark Rd. 97 Comment
  CAS-BOT-BC181181  Paronychia ahartii J. D. Jokerst 1986-6-18 2744 Butte Unsurveyed portion county on the Richardson Spring 7.5 minute USGS topographic map the site is 145 mm from bottom edge of map, not including border, 181mm from left edge. 45 Comment
  CAS-BOT-BC181183  Paronychia ahartii R. F. Hoover 1938-4-24 3242 Butte 3 mi. n. of Chico Comment
  CHSC5943  Parthenocissus tricuspidata var. veitchi M. MacArthur 1968-6-17 187 Butte On NW wall of Life Science bld., Chico State College campus. 60 Comment
  UC665655  Parvisedum pumilum Herbert L. Mason 1941-4-6 12409 Butte 3 mi s of Chico (near junction of road to Paradise, Sierra Nevada Foothills); Sierra Nevada Foothills 91 Comment
  CHSC6082  Paspalum dilatatum J. Wheeler 1968-5-17 204 Butte S side of Chico Junior High School, near curb, Chico. 59 Comment
  CHSC94686  Paspalum dilatatum Lowell Ahart 2006-9-28 13384 Butte On the east side of the North Fork of the Feather River, on the west side of Hightway 70, about 50 yards southwest of the Shady Rest Area south of the Arch Rock Tunnel. 445 Comment
  CHSC6031  Passiflora caerulea M. MacArthur 1968-6-18 220 Butte Ca. 20 ft SE Big Chico Creek on fence by headhouse entrance, Chico State College Campus. 60 Comment
  CHSC100417  Paxistima myrsinites L. P. Janeway; Heather Koeth 2008-11-19 9612 Butte Northern High Sierra Nevada. Along a small creek in a steep deep draw 150 m southwest of Bush Creek, 1.2 air km west-northwest of the mouth of Bus Creek at French Creek. 707 Comment
  CHSC33892  Paxistima myrsinites M. S. Taylor; L. Hanson 1981-5-12 3689 Butte Jct of French Creek and 22N93, ca. 3.5 air mi s of Coyote Gap, ca. 17 air mi ne of Oroville. 853 Comment
  CHSC62445  Paxistima myrsinites B. Castro; L. Janeway 1991-2-17 440 Butte Ca 6 air mi NW of Stirling City at Ewalt Camp, on NW-facing slopes E of W Branch Butte Creek and just W of Carpenter Ridge. Note: Sec 34 given for orientation since no sections are shown on quad map for this vicinity. 944 Comment
  SEINET10453506  Paxistima myrsinites Lowell Ahart 1983-3-28 Ahart 3909 Butte E bank of Woodleaf Creek above the rd, ca. 3/8 mi sw of Forbestown Reserv., ca. 4 mi ne of Forbestown. Yellow Pine Forest. 450 Comment
  CHSC43749  Pectiantia breweri Vernon Oswald 1987-6-29 3038 Butte Jones Meadow Rd. e of Inskip, 0.1 mi e of the intersection of the last section of road to Jones meadow. 1734 Comment
  CDA38827  Pectocarya pusilla L. Ahart 2012-4-3 17936 Butte On the east side of Guardian Trial, about 300 yards north of Humboldt Trail, north of Bloody Pin Trail, about 1/8 mile west of Highway 32, about 8 miles northeast of Chico, south part of Upper Bidwell Park. Comment
  JEPS119983  Pectocarya pusilla Lowell Ahart 2012-4-30 17936 Butte On the east side of Guardian Trail about 300 yards north of Humboldt Trail, north of Bloody Pin Trail, about 1/8 mile west of Highway 32, about 8 miles northeast of Chico, south part of Upper Bidwell Park. Comment
  CHSC11889  Pedicularis attollens E. B. Copeland 1930-7-18 471 Butte Jonesville. 1550 Comment
  RSA4166  Pedicularis attollens E. B. Copeland 1930-7-18 471 Butte Jonesville. 1550 Comment
  UCD123334  Pedicularis densiflora M. Vincent 1961-3-20 9 Butte Harrison Road and Stern; Paradise, California. 609 Comment
  CAS-BOT-BC71203  Pellaea andromedifolia Lillian Mott 1969-4-27 s.n. Butte Table Mt. Comment
  UC474221  Pellaea brachyptera H. F. Copeland 1920-5-22 231 Butte Jonesville 2200 Comment
  RSA500413  Pellaea brachyptera Vernon H. Oswald 1989-5-28 3786 Butte Logging road paralleling the west side of Butte Creek, 3.2 miles south of Humboldt Road, nead Butte Meadows. 1293 Comment
  SFV64  Pellaea mucronata M. L. Vincent 1961-3-26 7 Butte Sierra Nevada 0.5 miles north of Nelson Bar Road near P. G. & E. power building. Southeast of Paradise 300 Comment
  SEINET11715828  Pellaea mucronata Unknown 1978-1 7 Butte ca 150 ft NW of Skyway Rd, ca 5 mi NE of bridge crossing Butte Creek between Chico & Paradise 244 Comment
  SEINET194311  Penstemon azureus A. A. Heller 1938-5-28 15117 Butte 23 miles o\\from Oroville on the Feather River Highway in Arid Transition Zone. Comment
  RSA285683  Penstemon azureus subsp. angustissimus D. C. Michener 1980-8-4 3776 Butte Sierra Nevada. Talus slopes long CA 70 in open Pinus, chaparral transition ca 4 miles south of Pulga. Feather River Canyon Comment
  CHSC107592  Penstemon laetus var. leptosepalus Lowell Ahart 2011-7-9 17570 Butte Along a small wash, southwest edge of a large open bare granite area, about 3/8 mile northeast of Little Bald Rock, about 2 miles (air) southeast of Brush Creek, about 15 miles (air) northeast of Oroville. 967 Comment
  CHSC44715  Penstemon laetus var. leptosepalus R. Banchero 1980-7-7 288 Butte Along Quartz Creek Rd 0.5 mi S of the Dark Canyon Bridge, 0.6 mi N of the Fall River Bridge. 1036 Comment
  JEPS106173  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
  JEPS93937  Penstemon laetus var. leptosepalus Vernon H. Oswald and Lowell Ahart 1998-8-11 9473 Butte Four Trees-Coyote Gap Road 0.1 mi w of Four Trees; Four Trees-Coyote Gap Road 1578 Comment
  UC1303024  Penstemon laetus var. leptosepalus A. A. Heller 1928-6-19 14626 Butte Forest Ranch Comment
  UC423490  Penstemon laetus var. leptosepalus David D. Keck 1930-7-25 981 Butte 4 mi w Forbestown (eastern Butte County); Sierra Nevada, w of Forbestown 762 Comment
  CHSC49034  Penstemon neotericus Vernon Oswald 1984-7-5 1346 Butte Humboldt Rd. to Butte Meadows, 2.0 mi n-e of Hwy 32. 1380 Comment
  CAS-BOT-BC245636  Penstemon personatus Lowell Ahart 1988-7-31 6157 Butte A little south-west of the stream that is a branch of Last Chance Creek, about 1 air mile west and a little north of Bald Mountain, about 3 1/2 air miles north-east of Stirling City 1066 Comment
  CAS-BOT-BC239451  Penstemon rydbergii var. oreocharis A. A. Heller 1928-7-10 14652 Butte At Butte Meadows Comment
  CAS-BOT-BC239453  Penstemon rydbergii var. oreocharis C. S. Robinson 1929-7-4 124 Butte Lassen National Forest, Colby Mdw. 1219 Comment
  RSA4460  Penstemon rydbergii var. oreocharis E. B. Copeland 1931-6-20 689 Butte Jonesville. By Butte Creek. 1500 Comment
  CHSC10590  Pentagramma pallida Lowell Ahart 1966-2-20 Butte Sam's Ranch, Honcut. 60 Comment
  CHSC32691  Pentagramma triangularis M. S. Taylor 1981-3-18 3416 B Butte S side of Hwy 70 near Pulga bridge. 487 Comment
  CHSC3982  Pentagramma triangularis E. P. Parreno 1967-2-20 Butte Salmon Hole. Comment
  CHSC28409  Pentagramma triangularis subsp. semipallida M. S. Taylor 1979-9-28 2201 Butte Butte county line at Hwy 70, between boundary and Arch Rock tunnel. 487 Comment
  CHSC33902  Pentagramma triangularis subsp. semipallida M. S. Taylor 1981-5-15 3741 Butte Both sides of rd 22N92 between its junction with 23N00.1 and West Branch French Creek, ca. 1.5 air mi s of Coyote Gap, ca. 4 air mi e of Pulga on Feather River Hwy 70. 929 Comment
  CAS-BOT-BC77081  Pentagramma triangularis subsp. triangularis Lowell Ahart 1980-3-26 2063 Butte Near Hurleton. 600 Comment
  JEPS116128  Pentagramma triangularis subsp. triangularis Lowell Ahart 2009-4-22 15564 Butte South side of Guardians Trail, about 50 yards west of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  UC106559  Perideridia bolanderi subsp. bolanderi Mrs. R. M. Austin 1896-7-4 256 Butte Colby Comment
  CHSC1972  Perideridia bolanderi subsp. involucrata M. Underhill 1952-7-2 Butte 243 Comment
  CHSC66659  Perideridia kelloggii Vernon H. Oswald; Lowell Ahart 1996-7-22 8089 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 SW corner of Tract 3.4, Sanctuary II, on the Llano Seco Ranch side of the refuge boundary. 32 Comment
  CHSC38743  Perideridia oregana Vernon Oswald 1983-6-9 655 Butte Upper Bidwell Park, Chico, near Yahi Trail 1400 ft e of Salmon Hole Parking Area. 170 Comment
  UC1532350  Perideridia oregana Vernon Oswald 1986-6-11 2109 Butte on Yahi Trail near Salmon Hole; Chico, Upper Bidwell Park 158 Comment
  CDA38503  Perideridia parishii T. C. Fuller 1962-7-12 9194 Butte Road to Jonesville, 2 miles east of Butte Meadows. 0 Comment
  CHSC40240  Perideridia parishii subsp. latifolia Vernon Oswald 1985-7-11 1896 Butte Chaparral Guard Station on Humbug Rd. 2.0 mi sw of Philbrook Rd. Near a creek on the s side of the road. 1463 Comment
  RSA459108  Perideridia parishii subsp. latifolia H. F. Copeland 1928-8-29 1064 Butte Neighborhood of Jonesville, canyon of Jones Creek. 1829 Comment
  CDA42946  Persicaria hydropiper L. Ahart 2012-10-28 18522 Butte On the south side of Big Chico Creek, about 50 yards east of Table 5, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CHSC30868  Persicaria hydropiper J. D. Jokerst 1980-7-18 997 Butte Top of North Table Mt., ca 100 m NW of the jct. Cherokee Rd. and the east edge of mt. Comment
  CHSC76288  Persicaria hydropiper Lowell Ahart 1999-9-21 8271 Butte Large disturbed area along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CHSC66674  Persicaria hydropiperoides Vernon H. Oswald; Lowell Ahart 1996-7-22 8082 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U. S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Abundant in wet mud on the bottom of a drying slough on the W side of the levee at the SW corner of Tract 6, Sanctuary I. 30 Comment
  CHSC113359  Persicaria lapathifolia Lowell Ahart 2014-4-25 19409 Butte Sides of a cleaned ditch, on the west side of Richvale South Highway, south of the intersection of Richvale West Road and Richvale South Highway, Richvale. 30 Comment
  UCD99567  Persicaria maculosa A. A. Heller 1914-8-20 11690 Butte 8 miles north of Oroville Comment
  UCD99563  Persicaria maculosa H. F. Copeland 1923-6-1 s.n. Butte Nelson. Comment
  CHSC110406  Persicaria punctata Lowell Ahart 2012-9-28 18466 Butte Gravel bar in the middle of Big Chico Creek, about 30 yards east of the Freeway, Lower Bidwell Park, Chico. 65 Comment
  CHSC94595  Persicaria punctata Lowell Ahart 2006-9-11 13291 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
  HSC103921  Persicaria punctata L. Ahart 2012-9-28 18466 Butte Lower Bidwell Park, Chico; gravel bar in the middle of Big Chico Creek, ~30 yds. E of the Freeway 66 Comment
  HSC32619  Petrorhagia dubia David Johnson 1974-4-20 27 Butte Along Pentz Rd., S of Clark Rd. intersection. Comment
  SEINET10546874  Phacelia Mary Susan Taylor 1979-10-5 Taylor 2229 Butte T23N R4E sec 18. SE side of Paradise Lake (from picnic area to first creek coming into lake, along road), ca. 0.5 mi N of Coutolenc Rd, ca. 5 mi N of Magalia. 732 Comment
  RSA32014  Phacelia corymbosa A. A. Heller 1938-5-28 15118 Butte On the Feather River Highway, 23 miles from Oroville. Comment
  CHSC31964  Phacelia distans J. D. Jokerst 1979-4-20 1213 Butte Top of North Table Mt, W edge of mountain. 396 Comment
  CHSC42159  Phacelia distans Kent Clement 1986-4-7 20 Butte On North Table Mountain, ca. 10 km m of Oroville, w of Cherokee Rd. 411 Comment
  CHSC52403  Phacelia egena R. Smallwood 1969-4-25 19 Butte Butte Cr Cyn; Honey Run Rd at the Covered Bridge; 15 yds NW of old bridge. 137 Comment
  UC1047038  Phacelia egena L. R. Heckard and J. R. Sweeney 1953-4-27 344 Butte along Feather River Hwy about 16 mi ne Oroville Comment
  CHSC39113  Phacelia heterophylla subsp. virgata R. A. Schlising 1984-5-24 4454 Butte Bear Ranch Falls NE of Pulga, off Feather River Canyon. 609 Comment
  POM252972  Phacelia heterophylla subsp. virgata A. A. Heller 1938-5-28 15124 Butte Somewhat shaded places along the Feather River Hwy in moist soil, 25 miles from Oroville Comment
  CHSC39108  Phacelia mutabilis R. A. Schlising 1983-8-27 4450 Butte N part of county at Coon Hollow nw of Philbrook Reservoir. 1615 Comment
  UC909974  Phacelia mutabilis A. A. Heller 1914-7-23 11600 Butte edge of forest about Chico Meadows 1219 Comment
  CHSC30065  Phacelia purpusii R. A. Schlising; R. Banchero 1980-6-17 3730 Butte N of Magalia and De Sabla, along Skyway ca 1.5 mi SW of Lovelock. 780 Comment
  CHSC31000  Phacelia purpusii M. S. Taylor; R. S. Schlising 1980-7-6 3064 Butte On w side of Hwy 32, ca. 0.1 mi s of Loma, on rocky open edge of Yellow Pine Forest. 1127 Comment
  UC600777  Phacelia racemosa H. F. Copeland 1932-7-23 Butte Copeland Cabin Jonesville (along stone wall in yard) Comment
  UC196274  Phacelia ramosissima var. ramosissima A. A. Heller 1914-7-2 11517 Butte Canyon of Big Chico Creek 76 Comment
  JEPS122160  Phalaris arundinacea Lowell Ahart 2014-8-13 19699 Butte On the southeast side of Humbug Summit Road, about 100 yards southwest of the Way Point, about 200 yards southwest of Memorial Spring, about a mile southwest of the intersection of Humbug Summit Road and Philbrook Road, about 2 1/2 miles (air) northwest of Philbrook Reservoir. Comment
  CHSC71215  Phalaris caroliniana Lowell Ahart 1998-6-9 7999 Butte Edge of a vernal pool or seep, about 1/2 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
  CHSC49565  Phalaris paradoxa Vernon Oswald 1988-4-18 3272 Butte Harter's Cherokee Ranch located on the w side of Hwy 99 between Hwy 149 and Dry Creek. On the edge of a rice field in the southeast part of the ranch. 45 Comment
  SEINET10661955  Phalaris paradoxa Lowell Ahart 2005-5-28 Ahart 11828 Butte T21N, R3E, southwest 1/4 Section 25. 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
  CHSC76955  Philadelphus lewisii Ida Ryan 1893-5-1 Butte Chico. Comment
  UC1564796  Phleum alpinum V. Oswald and L. Ahart 1989-7-12 3853 Butte ca 2 mi (air) sw Lotts Lake (ca 3 mi (air) se of Philbrook Reservoir, near the headwaters of Big Kimshew Creek); headwaters of Big Kimshew Creek, sw of Lotts Lake 1901 Comment
  UC600674  Phlox austromontana H. F. Copeland 1920-8-8 Butte Jonesville Comment
  SEINET12230319  Phoradendron bolleanum M. S. Taylor, Oswald, V. 1984-1 5396 Butte at jct of Coutelenc Rd and the Skyway, Magalia, just N of Paradise 372 Comment
  RSA325180  Phoradendron bolleanum subsp. densum M. S. Taylor, Vernon H. Oswald 1984-4-4 5396 Butte At jct of Coutelenc Road and the Skyway, Magalia, just N of Paradise. 372 Comment
  SEINET10903286  Phoradendron bolleanum subsp. densum Mary Susan Taylor 1980-2-17 Taylor 2316 Butte T23N R2E sec 17. In crevice of cliff, ca. 1/4 mi N of Mud Creek, ca. 1 mi NE of Richardson Springs Hotel. 366 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-BC135127  Phoradendron juniperinum Saichi Kawahara 1968-5-5 395 Butte Innskip 1463 Comment
  JEPS127077  Phoradendron serotinum subsp. macrophyllum Lowell Ahart 2016-2-22 20740 Butte On the east side of Ahart Road, about 100 yards north of the intersection of Smullin Road and Ahart Road east side of Honcut, about 13 miles south of Oroville. Comment
  CAS-BOT-BC141250  Phoradendron serotinum subsp. tomentosum John Thomas Howell 1978-7-26 53191 Butte Open crest in volcanic agglomerate, E of Nevada City on Highway 20 at junction of road to Washington. Sierra Nevada 1310 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
  CAS-BOT-BC140565  Physocarpus capitatus Lowell Ahart 1982-6-1 3526 Butte About 1/2 mile south-west of the intersection of Black Bart Road and Forbestown Road, west of Forbestown 750 Comment
  CHSC40355  Phytolacca americana Lowell Ahart; Vern Oswald 1985-7-28 5159 Butte On dry rocky disturbed soil along a small stream, along La Porte Road about 4 miles north-east of Bangor. 304 Comment
  UC1563297  Phytolacca americana unknown 1990-9-21 6598 Butte about 2 1/2 mi n and 1/4 mi e of Honcut (about 12 mi s of Oroville, Peter Ahart Ranch); Peter Ahart Ranch 36 Comment
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Dec 3 2014
  CHSC109764  Phytolacca americana var. americana Lowell Ahart 2012-10-28 18524 Butte About 50 yards east of Table 5, west of Cedar Grove, Lower Bidwell Park, Chico. 68 Comment
  CAS-BOT-BC202264  Pickeringia montana var. montana Lowell Ahart 1989-5-29 6304 Butte Along Robinson Mill Road, about 1 1/2 miles south of Forbestown Road 670 Comment
  CHSC103940  Pilularia americana Lowell Ahart 2010-5-22 16712 Butte South of the road, about 120 yards east of the fence, about 220 yards east of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 379 Comment
  CHSC43857  Pilularia americana Vernon Oswald 1988-3-14 3256 Butte Harter's Cherokee Ranch located on the w side of Hwy 99 between Hwy 149 and Dry Creek. 45 Comment
  CHSC3429  Pinus contorta Judy Potter 1966-3-23 131 Butte South wall administration building, Chico State College, Chico. 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
  CHSC109616  Pinus sabiniana Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18019 Butte On the north side of Big Chico Creek, on the north side of the paved park road, southeast part of the old walnut orchard, south of Vallombrosa Avenue, about 1/8 miles of Peterson Drive, Lower Bidwell Park, Chico. 76 Comment
  JEPS117404  Piperia elongata Lowell Ahart 2010-5-14 16673 Butte On the south side of Guardian Trail, about 1/4 mile west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 301 Comment
  CHSC54351  Piperia michaelii Lowell Ahart 1991-5-12 6653 Butte Peter Ahart Ranch, about 1 1/4 miles north and 2 1/2 miles east of Honcut, about 12 miles south-east of Oroville. 48 Comment
  CAS-BOT-BC254404  Piptatherum miliaceum Lowell Ahart 1981-9-26 3207 Butte 6 miles W of Chico 40 Comment
  CHSC26445  Pittosporum tobira Pam Moyer 1971-10-1 25 Butte CSUC Campus. Bidwell Mansion front lawn. Comment
  SEINET10529820  Pityrogramma triangularis Mary Susan Taylor 1984-4-6 Taylor 5401 Butte T22N R4E nw sec 3l. Ca. 0.5 mi N of Kunkle Reservoir, on E side of Pentz-Magalia Hwy, ca. 3 mi S of Paradise. Comment
  SEINET10834170  Pityrogramma triangularis Mary Susan Taylor 1980-6-14 Taylor 2869 Butte T21N R6E nw sec 29. Big Bend quad. Little Bald Rock, on granite dome, ca. 4 mi E of Lake Madrone. 1016 Comment
  JEPS107356  Plagiobothrys austiniae Lowell Ahart, Paul Maslin, John Dittes 2005-3-17 11664 Butte Big Chico Creek Ecological Reserve. Burned area, ca. 50 yd S of fence, on the E side of the poor dirt road, ca. 1/8 mi NW of the Indian Cave, ca. 3/4 mi W of Big Chico Creek, ca. 4 1/2 mi (air) NE of Chico 481 Comment
  HSC38054  Plagiobothrys fulvus Thomas W. Nelson, Jane P. Nelson 1976-5-9 2460 Butte At intersection of Palermo Rd. and S.R. 70 ca. 4 mi. S of Oroville Comment
  CHSC7044  Plagiobothrys fulvus var. campestris J. G. Moore 1969-3-25 135 Butte Upper Bidwell Park, 200 yds. w of rifle range 100 yds. n of entrance to golf course. 67 Comment
  UCD73005  Plagiobothrys fulvus var. campestris 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
  SEINET12326939  Plagiobothrys fulvus var. campestris Unknown 1982-1 17 Butte on banks of Singer Ck, ca 1 mi W of Hwy 99 off Haille Rd, ca 12 mi N of Chico 61 Comment
  CHSC43392  Plagiobothrys glyptocarpus Lowell Ahart 1979-5-7 1856 Butte Near Kunkle Creek, about 2 1/2 miles south-east of Paradise. 472 Comment
  CHSC43468  Plagiobothrys glyptocarpus Lowell Ahart 1979-4-30 1853 Butte About 1 mile northeast of the West Branch Bridge across Lake Oroville. In seeps and small streams. 365 Comment
  JEPS77831 Image available Plagiobothrys glyptocarpus A. A. Heller 1914-5-16 11202 Butte 8 mi n Oroville Comment
  SEINET12329563  Plagiobothrys glyptocarpus Unknown 1984-1 4590 Butte ca 0.5 mi N of Kunkle Reserv., along Kunkle Creek, ca 2 mi S of Paradise, E side of Pentz-Magalia Hy 600 Comment
  CHSC103675  Plagiobothrys shastensis Lowell Ahart 2010-4-30 16601 Butte Open are along a ridge, 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
  UC1537691  Plagiobothrys stipitatus Gordon H. True Jr. 1936-3-26 377 Butte Gray Lodge Refuge 22 Comment
  CHSC103703  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2010-5-14 16653 Butte On the west side of old Humboldt Road, Disc Golf Area, about 150 yards north of the entrance to the Disc Golf Area, about 40 yards west of Higway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 395 Comment
  CHSC116703  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2016-5-14 20830 Butte About 100 yards north of the waterhole, Peter Ahart Ranch, about 1 3/4 miles north and 2 3/4 miles east of Honcut, about 11 miles (air) southeast of Oroville. 38 Comment
  CHSC117398  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2016-5-31 20904 Butte On the sides of a deep wash, about 1/8 mile east of Palermo Honcut Highway, Peter Ahart Ranch, about 2 1/4 miles north and 1/8 mile east of Honcut, about 12 miles (air) south of Oroville. 29 Comment
  CHSC90948  Planodes virginica Lowell Ahart 2005-4-14 11712 Butte Bottom of a deep drain ditch, east of the railroad tracks, north of Spruce Street, Gridley. 28 Comment
  CHSC103994  Plantago coronopus Lowell Ahart 2010-5-14 16638 Butte Along the east side of the poor dirt road, parking area, about 100 yards north of the entrance to the Disc Golf Area, west side of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 394 Comment
  JEPS117270  Plantago coronopus Lowell Ahart 2010-5-14 16638 Butte Along the east side of the poor dirt road, parking area, about 100 yards north of the entrance to the Disc Golf Area, west side of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 394 Comment
  CHSC39950  Plantago elongata Lowell Ahart 1984-4-24 4584 Butte Peter Ahart Ranch, ca. 2.5 mi NE of Honcut, ca. 12 mi S of Oroville. 50 Comment
  JEPS119614  Plantago elongata Lowell Ahart 2012-4-9 17835 Butte West of South Rim Trail, south part of Upper Bidwell Park, about 2 1/4 miles (air) northeast of Chico. Comment
  CHSC47461  Plantago erecta Lowell Ahart 1974-4-7 348 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 1/2 miles east of Honcut, about 12 miles south of Oroville. 42 Comment
  UC888367  Plantago erecta A. A. Heller 1917-3-18 12668 Butte Chico Creek, lower end of Iron canyon Iron Canyon Comment
  JEPS98311  Plantago virginica Lowell Ahart 2000-5-13 8348 Butte 5 air miles SW of Oroville (margin of Thermalito Afterbay, S side of access road to boat ramp, W of Larkin Road, 1 1/4 mi S of Oroville Airport) 42 Comment
  SEINET10470058  Platanthera dilatata var. leucostachys Mary Susan Taylor 1978-1 Butte Comment
  CHSC61527  Platanthera leucostachys Lowell Ahart 1993-6-26 7006 Butte About 1/4 mile west of the Lost Creek Reservoir. 1036 Comment
  SEINET12077271  Platanthera sparsiflora var. sparsiflora L. Ahart, Ahart, P. 1984-1 Butte Comment
  SEINET10871901  Platanus racemosa Lowell Ahart 1984-4-3 Ahart 4535 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
  RSA638253  Plectritis brachystemon Michael A. Vincent, Ethan H. Freid 1998-4-6 8119 Butte Table Mountain. Comment
  UC128821  Pleuricospora fimbriolata Miss Kate Conger 1907-1 Butte Brush Creek Comment
  CHSC113108  Poa annua Lowell Ahart 2013-11-13 19245 Butte Below the high water line of Lake Oroville, along the sides of Sucker Creek, about 30 yards north of the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 244 Comment
  JEPS114972  Poa annua Lowell Ahart 2008-5-21 14775 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 246 Comment
  JEPS116032  Poa annua Lowell Ahart, Josephine Guardino, Steve Green 2009-2-20 15491 Butte Near the north side of Cedar Grove, Lower Bidwell Park, Chico 67 Comment
  SEINET10593443  Poa annua Lowell Ahart 1973-2-21 Ahart 154 Butte Dry soil, very common. Peter Ahart Ranch, Honcut. Valley Grassland. 46 Comment
  UC600760  Poa bolanderi H. F. Copeland 1930-7-21 1349 Butte Jonesville 1524 Comment
  UC820683  Poa bolanderi A. A. Heller 1917-7-29 12868 Butte summit above Jonesville 2133 Comment
  UC1562320  Poa cusickii subsp. epilis Vernon Oswald and Lowell Ahart 1990-7-19 4371 Butte ca 3 mi e Philbrook Reservoir (ca 0.8 mi w of Plumas Co line, s side of Philbrook Creek) 1965 Comment
  CHSC88152  Poa pratensis subsp. pratensis Lowell Ahart 2004-7-23 11304 Butte On the east side of the road, north of the West Branch Campground, south of the Bridge across the West Branch of the Feather River, about 1 1/2 miles (air) west of Philbrook Reservoir Dam, about 3 3/4 miles (air) southeast of Butte Meadows. 1456 Comment
  SEINET175716 Image available Poa pringlei Unknown 1931-6-22 606 Butte At 'The Summit 2000 Comment
  CHSC103982  Poa secunda subsp. secunda Lowell Ahart 2010-5-14 16675 Butte On the south side of the Guardian Trail, about 1/8 mile west of Highway 32, Upper Bidwell Park, about 5 miles (air) northweat of Chico. 301 Comment
  CHSC59849  Poa secunda subsp. secunda Michael Snider 1978-4-12 13 Butte Ca. 140 ft s of Rock Creek. 213 Comment
  CAS-BOT-BC244153  Poa sierrae Lowell Ahart 1978-4-19 1486 Butte Along the trail to Feather Falls, about 0.5 mile from the trail head 650 Comment
  CHSC42403  Poa trivialis subsp. trivialis Lowell Ahart 1987-6-9 5731 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
  CHSC25040  Pogogyne zizyphoroides P. E. Reese 1972-4-29 10 Butte Found ca. 50 ft. from Hwy. 99 at intersection with Boyles Rd. n of Chico. 60 Comment
  CHSC33851  Pogogyne zizyphoroides Don Kroessig 1979-4-16 1 Butte On the e side of Hwy. 149, 1.3 mi. n of intersection with Hwy. 70, nw of Oroville. 76 Comment
  SEINET10841183  Poinciana gilliesii Mary Susan Taylor Taylor 778 Butte Weedy or cultivated plants of Chico. 61 Comment
  CHSC100480  Polanisia dodecandra subsp. trachysperma Lowell Ahart; John Dittes, Josephine Guardino 2008-11-8 15437 Butte On the bottom of Lindo Channel, about 100 yards west of the diversion structure, north of Hooker Oak, Upper Bidwell Park, Chico. 68 Comment
  CHSC30772  Polanisia dodecandra subsp. trachysperma M. S. Taylor 1980-8-15 3255 Butte S side of Neal Rd, ca. 0.1 mi e of its jct with Hwy 99, at vernal creek culvert, ca. 7 mi s of Chico. 60 Comment
  SEINET3369142 Image available Polemonium occidentale E. B. Copeland 1929-7-28 392 Butte Jonesville. 1500 Comment
  UC600676  Polemonium pulcherrimum E. B. Copeland July, 1930 Butte Big Summit Jonesville, Big Summit 2200 Comment
  CHSC48259  Polycarpon tetraphyllum Vernon Oswald 1988-5-8 3299 Butte Fernandez land grant. Oroville Wildlife Area at the Palm Ave. entrance. Near a pond. 30 Comment
  CHSC23081  Polygala cornuta Robert A. Schlising 1964-6-12 2728 Butte South of Cohasset, 5.2 miles north of jct. Cohasset Highway and Kiefer Road, along Cohasset Highway; roadside. Comment
  UCD109713  Polygala cornuta L. E. Hazeltine 1916-7-16 s.n. Butte Appleton. Comment
  NY406770  Polygala cornuta A. A. Heller 1914-7-24 11624 Butte Forest Ranch 731.5 Comment
  RSA726857  Polygala cornuta var. cornuta L. Ahart 2007-5-29 13921 Butte About 1/8 mile south of Bald Rock Dome, on the both sides of the Dome Trail, trail leads to the Middle Fork of the Feather River, about 1 1/4 miles by the trail from the trail head which is 3/10 mile east of Bean Creek Road., About 2 miles (air) northeast of Big Bald Rock, about 16 miles (air) northeast of Oroville. 686 Comment
  SBBG121598  Polygala cornuta var. cornuta L. Ahart 2007-5-29 13921 Butte ca. 1/8 mi S of Bald Rock Dome on both sides of the Dome Trail, trail leads to the Middle Fork of the Feather River 685 Comment
  SEINET1004840  Polygala cornuta var. cornuta Lewis S. Rose 1935-1 55102 Butte 6 mi. SE of Paradise on Pentz Road. 427 Comment
  CHSC113603  Polygonum aviculare subsp. aviculare Lowell Ahart 2014-8-24 19728 Butte On the south side of the road, about 50 yards west of Woodleaf Creek, about 1/2 mile southwest of the Forbestown Reservoir Dam, about 4 miles (air) northeast of Forbestown. 611 Comment
  UC1564727  Polygonum aviculare subsp. aviculare V. Oswald and L. Ahart 1989-7-21 3870 Butte junction of Willow Creek and Colby Creek (on n side of Humbold Rd ca 1 mi w of Jonesville, w side of Colby Creek) 1487 Comment
  CAS-BOT-BC109135  Polygonum bidwelliae Lowell Ahart 1980-5-11 2239 Butte 0.5 mile southwest of Kunkle Res. 500 Comment
  CHSC45856  Polygonum bidwelliae Lowell Ahart 1979-5-7 1861 Butte East of Kunkle Creek, about 1/8 mile north-east of Kunkle Reservoir, about 2 1/2 miles south-east of Paradise. 472 Comment
  UC726648  Polygonum bidwelliae A. A. Heller 1941-5-25 16149 Butte 5 mi e Chico (just back of rifle range, opposite golf links) Comment
  UC398908  Polygonum bistortoides E. B. Copeland 1929-7-20 357 Butte Jonesville 1550 Comment
  CAS-BOT-BC414364  Polygonum californicum Lowell Ahart 1988-5-12 5996 Butte About 1/2 mile north-east of the Honcut Cemetery, Joie Osgood Ranch, about 3 1/2 miles east and 1 1/2 miles north of Honcut 60 Comment
  CHSC29705  Polygonum californicum J. D. Jokerst 1980-5-28 896 Butte Top of North Table Mt., S of Cherokee Rd. 403 Comment
  CHSC71187  Polygonum californicum Lowell Ahart 1998-6-9 7982 Butte On dry dark rocky bare basalt, west of Cherokee Road, about 50 feet southwest of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  UC127747  Polygonum convolvulus Miss Kate Conger 1907-1 Butte Brush Creek Comment
  CHSC45100  Polygonum douglasii subsp. douglasii Lowell Ahart 1988-9-4 6182 Butte On the bank of Big Kimshew Creek, the creek crosses a large meadow, about 1 air mile north-east of Jones Meadow. 1920 Comment
  RSA724998  Polygonum lapathifolium L. Ahart 2006-9-11 13289 Butte South edge of the North Fork of the Feather River, north side of highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 air miles northeast of Oroville. 432 Comment
  UCR219100  Polygonum lapathifolium George K. Helmkamp, E. A. Helmkamp 2009-9-5 15604 Butte Sacramento Valley, Honcut, on Palermo-Honcut Highway, 0.1 mile north of Lower Honcut Road 35 Comment
  RSA0035340  Polygonum punctatum Lowell Ahart 2012-9-28 18461 Butte Just east of the east end of Sycamore Pool in Big Chico Creek, Lower Bidwell Park, Chico. 62 Comment
  SEINET10530412  Polypodium californicum Mary Susan Taylor 1980-4-6 Taylor 2430 Butte T8N R5E ec border sec 3. Junction of Rocky Honcut Creek and Swedes Flat Rd, ca. 2 mi E of Oroville-Bangor Hwy, ca. 10 mi SE of Oroville. With L. Ahart & J.D. Jokerst. 366 Comment
  CHSC97736  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
  JEPS107675 Image available Polypodium calirhiza Lowell Ahart, P. Maslin, S. Green, J. Guardino, J. Dittes 2005-2-6 11553 Butte Big Chico Creek Ecological Reserve. At the base of Lovejoy Basalt cliffs, about 300 yards west of Highway 32, about 8 miles northeast of Chico 406 Comment
  CAS-BOT-BC232967  Polypogon australis A. A. Heller 1914-5-19 11419 Butte Hills 8 miles N of Oroville Comment
  CHSC42399  Polypogon australis Lowell Ahart 1987-6-9 5730 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
  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
  RSA715583  Polypogon interruptus L. Ahart 2005-4-14 11720 Butte About 200 feet east of the railroad tracks, north of Spruce Street, Gridley. 28 Comment
  CAS-BOT-BC232574  Polypogon monspeliensis Lowell Ahart 1980-7-29 2514 Butte Along Forbestown Road 228 Comment
  CHSC47632  Polypogon monspeliensis Lowell Ahart 1982-7-18 3681 Butte Along the sides and bottom of a wash, Peter Ahart Ranch, about 1 1/2 miles north and 1 1/2 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC47635  Polypogon monspeliensis Lowell Ahart 1966-5-7 14 Butte In swales, Peter Ahart Ranch, about 1 1/2 miles north and 1 1/4 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC28907  Polystichum imbricans M. S. Taylor 1979-5-4 1987 Butte Millsap Bar Campground, ca. 9 mi ne of jct of Millsap Bar Rd and Brush Creek Rd, ca. 26 mi ne of Oroville. 1005 Comment
  CHSC31021  Polystichum imbricans M. S. Taylor 1980-10-6 3355 Butte S side of Hwy 70, ca. 1/4 mi w of Bear Creek jct with n fork Feather River, ca. 0.5 mi w of Arch Rock Tunnel rest stop. 487 Comment
  CHSC32686  Polystichum imbricans M. S. Taylor 1981-3-18 3420 Butte N side of Pulga Rd, ca. 1/4 mi e of its jct with Pulga bridge over Hwy 70. 487 Comment
  CHSC39312  Polystichum imbricans Lowell Ahart 1983-6-26 4122 Butte Along Ponderosa Way, about 2 miles south-east of the intersection of the Oroville-Quincy Highway and Ponderosa Way, about 15 miles north-east of Oroville. The sign gives Big Ridge Road not Ponderosa Way. 500 Comment
  CDA14049  Polystichum imbricans subsp. curtum G. F. Hrusa, T. D. Wilfred 1997-5-1 13697 Butte Sierra Nevada; NE side of upper end of Paradise Lake. Where last tributaries from E enter. Comment
  CDA42712  Polystichum imbricans subsp. curtum L. Ahart 2004-6-22 11118 Butte On the east side of Doe Mill Road, about 1/4 mile southeast of the bridge across Butte Creek, about 2 1/4 miles (air) southeast of Forest Ranch, about 5 miles (air) southwest of Stirling City. Comment
  CHSC113597  Polystichum imbricans subsp. curtum Lowell Ahart 2014-8-24 19723 Butte On the south side of the road, about 150 yards southwest of the Forbestown Reservoir Dam, about 4 miles (air) northeast of Forbestown. 577 Comment
  CHSC90203  Polystichum imbricans subsp. curtum Lowell Ahart 2005-1-20 11474 Butte On the west side of McCabe Creek, above the high water line of Lake Oroville, about 1/4 mile south of the siphon, about 3 miles (air) northeast of Hurleton, about 7 miles (air) east of Oroville Dam. 304 Comment
  POM120956  Polystichum imbricans subsp. curtum C. C. Bruce 1897-05 1865 Butte Forest- Ranch. Comment
  CAS-BOT-BC72298  Polystichum imbricans subsp. imbricans M. S. Taylor 1979-9-28 2202 Butte Butte county line at Hwy 70, between boundary and Arch Rock Tunnel 487 Comment
  CAS-BOT-BC72300  Polystichum imbricans subsp. imbricans Lowell Ahart 1983-7-24 4213 Butte on the road cutbank at the Forbestown Res., about 5 miles northeast of Forbestown 450 Comment
  RSA724943  Polystichum imbricans subsp. imbricans L. Ahart 2006-10-8 13442 Butte Steep area about 10 yards below and on the southwest side of Highway 70, east of the north Fork of the Feather River, about .5 mile north of Cresta Power house. 610 Comment
  CHSC38664  Populus fremontii Vernon Oswald 1983-5-4 431 Butte Upper Bidwell Park, Chico, at the base of the s dike of Horseshoe Lake. 96 Comment
  CAS-BOT-BC452107  Potamogeton crispus M. S. Taylor 1979-10-2 2216 Butte On e bank of Sacramento River at Chico Landing, ca. 5 mi w of Chico. 30 Comment
  CHSC66688  Potamogeton foliosus var. foliosus Vernon H. Oswald; Lowell Ahart 1996-7-22 8091 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. At the SW corner of Tract 3.2, Sanctuary II. 32 Comment
  POM193390  Potamogeton gramineus E. B. Copeland 1930-7-28 406 Butte Above Jonesville. In shallow border of lily pond. 1700 Comment
  UC426898  Potamogeton gramineus E. B. Copeland 1930-7-28 Butte above Jonesville 1700 Comment
  CHSC51953  Potamogeton natans L. P. Janeway 1987-6-8 2166 Butte Along French Cr across from mouth of Ram Cr. Pond. 617 Comment
  CHSC8766  Potamogeton natans S. Chulasmai 1966-3-25 3 Butte Dredger Pond (3 miles south of Chico). Comment
  CAS-BOT-BC453738  Potamogeton natans Lowell Ahart 1981-9-21 3198 Butte Along French Creek 1300 Comment
  POM313007  Potamogeton nodosus H. L. Mason 1947-7-10 12640 Butte Sanford Slough, Butte Sink, southwest corner of Butte county. Comment
  CHSC55066  Potamogeton pectinatus Lowell Ahart 1991-9-14 6724 Butte In a reservoir, Joie Osgood Ranch, about 2 miles east of Honcut. 45 Comment
  CHSC65476  Potamogeton pusillus var. tenuissimus Vernon Oswald 1989-6-8 3800 Butte W side of Hwy 99 in ditch just n of Comanche Creek in s Chico. 64 Comment
  CHSC27565  Potentilla glandulosa subsp. glandulosa Robert Schlising 1978-5-17 3257 Butte Magalia; serpentine outcrop just S of Magalia Reservoir and crossed by S. T. RR and Coutelenc Road. 670 Comment
  UC114481  Potentilla gracilis var. fastigiata Mrs. R. M. Austin July 1896 Butte Colby Comment
  UC481573  Potentilla gracilis var. fastigiata H. F. Copeland 1931-6-11 Butte Jonesville Butte Creek Meadows, Jonesville 1828 Comment
  UC860934  Potentilla gracilis var. fastigiata A. A. Heller 1917-7-26 12836 Butte Butte Meadows 1280 Comment
  UC481577  Potentilla millefolia H. F. Copeland 1931-6-11 1535 Butte Butte Creek Meadows , Jonesville 1828 Comment
  CHSC31789  Prunella vulgaris var. lanceolata L. Ahart 1977-6-3 1407 Butte Peter Ahart Ranch, Honcut. Along edges of North Honcut Creek. 50 Comment
  CHSC43836  Prunella vulgaris var. lanceolata L. P. Janeway 1987-6-13 2200 Butte Flea Valley. 0.1 mi from Concow Rd on road into Flea Valley. 1127 Comment
  CHSC775  Prunella vulgaris var. lanceolata M. Underhill 1952-7-2 Butte 609 Comment
  CHSC48866  Prunus avium Vernon Oswald 1987-5-6 2372 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
  CHSC52697  Prunus caroliniana L. P. Janeway 1990-3-25 3659 Butte Campus of California State University, Chico. S side of Big Chico Cr at bridge between Sylvester's Cafe-by-the-Creek and Holt Hall. 59 Comment
  CHSC111416  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. 62 Comment
  JEPS119633  Prunus persica Lowell Ahart 2012-6-14 18183 Butte Near the intersection of Arbutus and Vallombrosa Avenue, Lower Bidwell Park, Chico. Comment
  UC1594537  Pseudognaphalium californicum Lowell Ahart 1992-8-2 6910 Butte about 0.5 mi n of Flea Valley (about 4.5 mi (air) ne of Concow Reservoir, e of the intersection) 1158 Comment
  CHSC21054  Pseudognaphalium luteoalbum M. S. Taylor 1975-4-25 503 Butte On Cohassett Hwy, ca. 1/2 mi n of Horse trough, ca. 20 mi ne of Chico. Comment
  JEPS115001  Pseudognaphalium luteoalbum Lowell Ahart 2007-11-3 14553 Butte Below the high water line of Lake Oroville, about 3/4 mile east of the Power House below Kunckle Reservoir, about 1 1/4 miles north of the Lime Saddle Campground, about 5 miles (air) southeast of Paradise 259 Comment
  CAS-BOT-BC357549  Pseudognaphalium stramineum Mrs. C. C. Bruce 1897-5-1 2112 Butte Butte Creek Comment
  RSA795638  Pseudotsuga menziesii var. menziesii L. Ahart 2012-2-22 17737 Butte East edge of Big Chico Creek, about 100 yards south of the trail crossing the creek, about 100 yards west of Ten Mile House Road, about 0.75 miles west of Highway 32, about 9 air miles northeast of Chico. 190 Comment
  CHSC43628  Psilocarphus brevissimus var. brevissimus Vernon Oswald 1987-6-23 3031 Butte High Lakes Rd. 5.8 mi (odometer) n of Philbrook Rd. 1889 Comment
  CHSC90801  Psilocarphus tenellus var. tenellus Lowell Ahart 2005-5-2 11774 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
  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
  SEINET10470591  Pteridium aquilinum var. pubescens Lowell Ahart, Peter Ahart 1983-9-21 Ahart 4463 Butte T20N R8E section 5. Along French Creek, ca. 3 mi n of the Sly Creek Dam, n of Strawberry Valley. Yellow Pine Forest; 900 m. 900 Comment
  UC455450  Pterospora andromedea Miss Kate Conger 1907-1 Butte Brush Creek Comment
  SEINET10454557  Pteryxia terebinthina Mary Susan Taylor 1978-7-18 Taylor 1708 Butte On E side of Humboldt Peak, at Humboldt Summit, on Butte-Tehama County line; Red Fir Forest. 2134 Comment
  CDA34560  Pyracantha koidzumii L. Ahart, John Dittes, Josephine Guardino 2008-11-8 15422 Butte South of the trail on the south side of Cedar Grove, Lower Bidwell Park, Chico. Comment
  UC478487  Pyrola asarifolia E. B. Copeland 1931-7-1 670 Butte Jonesville 457 Comment
  CAS-BOT-BC462850  Pyrola asarifolia E. B. Copeland 1931-7-1 670 Butte Jonesville 1500 Comment
  CHSC51870  Pyrola dentata L. P. Janeway 1988-7-2 2971 Butte At Coyote Gap. 1280 Comment
  UC5845  Quercus unknown 1890-11-20 Butte Chico Comment
  JEPS113213  Quercus X morehus Lowell Ahart 2007-3-28 13599 Butte West of North Honcut Creek, about 2 1/2 miles north and 2 2/3 miles east of Honcut, about 12 miles southeast of Oroville 51 Comment
  CHSC31420  Quercus chrysolepis L. Ahart 1980-9-10 2620 Butte Near Bean Creek Rd., ca. 0.5 mi se of Little Bald Rock, ne of Oroville. 1100 Comment
  UC1135364  Quercus chrysolepis C. G. Albertus 1933-5-26 2 Butte 0.5 mi s Nelson's Bar; Chico Quad. 365 Comment
  SEINET10477146  Quercus chrysolepis Mary Susan Taylor 1975-9-12 Taylor 907 Butte Yellow Pine Forest, ca. 24 mi NE of Chico, ca. 500 m W of Hwy 32; with Torreya californica, Ceanothus prostratus. 1067 Comment
  POM106172  Quercus douglasii C. C. Bruce 1897-05 1797 Butte Little Chico. Comment
  SEINET13953267 Image available Quercus dumosa A. A. Heller 1916-1 12649 Butte Ten mile house east of Chico in the digger pine belt in thin red clay soil, the rocks igneous. Comment
  CAS-BOT-BC62797  Quercus garryana John Thomas Howell 1955-6-15 30499 Butte 6 miles form Paradise on road to Pentz 426 Comment
  RSA263856  Quercus garryana J. T. Howell 1955-6-15 30497 Butte 6 miles from Paradise on road to Pentz. 427 Comment
  JEPS95964  Quercus kelloggii Lowell Ahart 1999-6-12 8084 Butte North Table Mountain; about one mile (air) northwest of the entrance gates along the west side of Cherokee Road; about 7 miles (air) north of Oroville 365 Comment
  RSA28825  Quercus lobata A. A. Heller 1915-4-1 11791 Butte Low flat land in the Sacramento Valley near Durham. 69 Comment
  RSA715581  Quercus lobata L. Ahart 2005-4-14 11710 Butte Gridley, north of Spruce Street, east of the railroad tracks. 28 Comment
  UC1135809  Quercus vacciniifolia P. L. Johannsen 1936-7-21 961 Butte 1.5 mi ese Chaparral House; Lassen National Forest, Paynes Creek Quad. 1645 Comment
  UCD47602  Quercus wislizeni var. wislizeni P. Akers 2002-5-5 s.n. Butte Road to Table Mtn from Oroville. 293 Comment
  CHSC48695  Ranunculus aquatilis var. aquatilis Vernon Oswald; Lowell Ahart 1987-7-1 3072 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. In the largest lake. 1935 Comment
  CHSC45400  Ranunculus bonariensis var. trisepalus Lowell Ahart 1978-4-21 1659 Butte In a vernal pool, Peter Ahart Ranch, about 1 mile north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC1482  Ranunculus hebecarpus J. Koopman 1929-3-25 Butte Butte Creek canyon. Comment
  RSA636048  Ranunculus muricatus Michael A. Vincent, Ethan H. Freid 1998-4-6 8124 Butte Table Mountain. Comment
  CHSC3802  Ranunculus occidentalis R. L. Adams 1964-4-12 64 Butte Found: Bidwell Park at junction of River Road and Sacramento Ave., near ox-bow lake bend, approx. 50 yds. from junction of roads, due west. Comment
  CHSC4664  Ranunculus occidentalis var. occidentalis R. Carter 1966-4-2 320 Butte Found ca. 7 mi. E of Oroville at 6120 Woodleaf St. Rt.; 300 yds. off Feathervale, behind house. 243 Comment
  CHSC38031  Raphanus raphanistrum R. E. Preston 1982-11-5 362 Butte At roadside, n side of Cana Hwy, 100 yds e of Cana-Pine Creek Rd, Cana. 50 Comment
  CHSC38033  Raphanus raphanistrum R. E. Preston 1982-11-13 364 Butte At roadside, n side of Hwy 70 at Wicks Corner, ca. 5 1/2 mi nw of Oroville. 85 Comment
  CHSC47040  Raphanus raphanistrum R. A. Schlising 1985-3-23 4459 Butte Richvale Vernal Pools, 1/4 mile s of junction Hwy 162 to Oroville and Hwy 99; along the latter and across from Thermalito Afterbay. Comment
  CHSC90955  Raphanus raphanistrum Lowell Ahart 2005-4-14 11718 Butte Bottom of a deep drain ditch, about 200 feet east of the railroad tracks, north of Spruce Street, Gridley. 28 Comment
  CAS-BOT-BC74262  Raphanus sativus A. A. Heller 1914-3-16 11203 Butte Low hills 8 miles north of Oroville. Comment
  CAS-BOT-BC59570  Rhamnus John Thomas Howell 1975-6-15 51118 Butte Sierra Nevada - Paradise - Skyway near Billie Road 609 Comment
  CHSC51909  Rhamnus ilicifolia L. P. Janeway 1988-3-12 2602 Butte Low in cyn of Little Chico Cr ca 2 air mi S of Ten Mile House. Top of cliff along inner gorge. 243 Comment
  UC1121919  Rhamnus rubra C. G. Albertus 1933-7-1 37 Butte sw slope Promontory Point; Chico Quad. 1005 Comment
  CHSC30721  Rhododendron occidentale M. S. Taylor 1980-5-27 2735 Butte On n side of Bald Rock Rd, ca. 0.5 mi e of Big Bald Rock, ca. 4 mi e of Lake Madrone. 975 Comment
  CAS-BOT-BC199745  Rhododendron occidentale var. californicum Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  CHSC39647  Rhus aromatica Lowell Ahart 1983-4-10 3927 Butte Near a small wash, about 1 1/2 miles north-east of Highway 99 and Pentz Road. 100 Comment
  CHSC78317  Rhynchospora californica Lowell Ahart 2000-6-21 8499 Butte In a small seep, south of Parking Area P, north of Salmon Hole, Upper Bidwell Park, about 3 1/3 miles (air) northeast of Manzanita Avenue, Chico. 106 Comment
  CHSC22688  Ribes amarum R. A. Schlising 1963-5-4 2563 Butte South of Cohasset, 5.2 miles north of Jct. Cohasset Hwy and Kiefer Road, along Cohasset Hwy. Comment
  SEINET10838518  Ribes amarum Mary Susan Taylor 1980-5-8 Taylor 2605 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
  SEINET10482917  Ribes amarum Mary Susan Taylor 1980-4-18 Taylor 2505 Butte T23N R3E ne sec 27 Paradise quad. Ca. 1 mi S of Nimshew, ca. 1/4 mi E of Nimshew Road; Yellow Pine Forest. With J.D. Jokerst. 610 Comment
  CAS-BOT-BC93276  Ribes cereum E. B. Copeland 1931-6-11 645 Butte Jonesville. Kirby's Meadow. 1800 Comment
  CHSC44938  Ribes nevadense J. Marr 1988-3-19 11 Butte S side of Concow Rd. 4 mi w from Hwy 70, 18 mi n of Oroville. 633 Comment
  CHSC99635  Ribes nevadense H. Koeth 2007-5-5 Butte Butte Meadows, Cherry Hill campground. UTM 10 628108E 4440095N. 1326 Comment
  UC129470  Ribes nevadense Miss Kate Conger 1907-1 Butte Brush Creek Comment
  CAS-BOT-BC212667  Ribes nevadense A. A. Heller 1919-5-17 13155 Butte Banks of the Feather River, near Stirling Comment
  SBBG17303  Ribes roezlii M. Vincent 1962-4-15 183 Butte 1 mi S of Stirling City on the Skyway Comment
  UCD135433  Rigiopappus leptocladus M. S. Taylor 1981-5-21 3770 Butte South side of Concow Road, ca. 0.5 mile south of its junction with Ponderosa Way, ca 20 air miles noth of Oroville. Comment
  JEPS53825  Rorippa W. L. Jepson 1934-5-4 16611 Butte 1 1/2 mi s Nord (swales of Pine Creek); near Sacramento River, Pine Creek Comment
  CHSC65775  Rorippa curvisiliqua var. occidentalis Vernon H. Oswald 1996-4-10 7352 Butte Sacramento Valley. Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. On the levee between Tract 10.1 and Tract 10.2 (seasonal marshes), Sanctuary 1. 32 Comment
  JEPS103453  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2002-10-17 9988 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
  SEINET10907260  Rorippa curvisiliqua var. occidentalis Lowell Ahart 1985-4-21 Ahart 4878 Butte Along the sides of Wyandotte Creek, south of Central House Road, north-west of Honcut, about 12 miles south of Oroville, Butte County. Comment
  CHSC539  Rorippa curvisiliqua var. orientalis M. Anthony 1954-5-30 Butte Rag Dump 5, Concow. 609 Comment
  JEPS103337  Rorippa curvisiliqua var. orientalis Lowell Ahart 2002-10-17 9987 Butte On the gentle hills below the high water line of Lake Oroville, ca 1 1/2 miles S of Highway 162 (Oroville Quincy Highway), ca 3 miles (air) NE of Oroville Dam. 227 Comment
  CHSC31640  Rorippa nasturtium-aquaticum L. Ahart 1977-5-8 1356 Butte On the bottom of a wash, Peter Ahart Ranch, Honcut. 50 Comment
  CHSC31878  Rosa L. Ahart 1976-5-21 1115 Butte Along the edge of North Honcut Creek, Peter Ahart Ranch, Honcut. 45 Comment
  CHSC109085  Rosa banksiae Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17869 Butte Between the edge of the paved road and the back of a home, east of the Deer Pen, between Table 12 and 13 , Lower Bidwell Park, Chico. 65 Comment
  CAS-BOT-BC146437  Rosa bridgesii Helen M. Edwards 1917-6-1 s.n. Butte De Sabla Comment
  CDA42871  Rosa californica L. Ahart 2012-5-14 18059 Butte Just west of Table 16, south of Big Chico Creek, on the north side of the paved path. Lower Bidwell Park. Comment
  CHSC30893  Rosa gymnocarpa M. S. Taylor 1980-9-12 3333 Butte W side of Hwy 32, ca. 3 mi n of Forest Ranch, near Forest Ranch Fire Control Station, ca. 5 minute walk w of the hwy on dirt rd. 975 Comment
  JEPS108718  Rosa gymnocarpa Lowell Ahart 2006-6-24 12856 Butte On the west side of the dirt road (Ponderosa Way), at an intersection, a gated road goes northwest, on Cohasset Ridge, about 3 3/4 miles (air) northeast of Cohasset 1128 Comment
  JEPS117312  Rosa multiflora 2010-8-6 17042 Butte In landscaping, at Five Mile Recreation Area, Bidwell Park, Chico 74 Comment
  JEPS94329  Rosa pisocarpa subsp. ahartii Lowell Ahart 1997-8-1 7797 Butte about 1/4 mi e of Table Mountain (about 8 air mi ne of Stirling City, on the bottom of Little Kimshew Creek); Little Kimshew Creek 1371 Comment
  CHSC6629  Rosa spithamea M. MacArthur 1968-6-17 301 Butte NW yard of Building U on the Chico State College campus. 60 Comment
  CHSC20552  Rubus armeniacus M. S. Taylor 1975-5-24 771 Butte Lower Bidwell Park, between Cork Oak Grove and Cypress Grove Picnic Area, Chico. Comment
  CHSC84739  Rubus glaucifolius L. P. Janeway; Christine Hantelman 2003-6-19 7850 Butte Northern Sierra Nevada Foothills. Along south edge of Middle Fork Feather River arm of Lake Oroville, half way between mouth of South Fork Feather River arm of the lake and mouth of Bean Creek. 280 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
  SEINET10970325  Rubus glaucifolius Mary Susan Taylor 1981-4-28 Taylor 3570 Butte T23N R5E sw sec 32 to T22N R5E ne sec 5 Pulga SW quad. Along Four Trees Rd, ca. 0.5 to 1 mi E of Hwy 70, ca. 2-3 mi NE of Pulga. Yellow Pine Forest; 2200-2400 ft. 670 Comment
  CHSC102620  Rubus laciniatus Lowell Ahart 2009-7-9 16013 Butte On the east edge of big Chico Creek, about 15 yards west of Ten Mile House Road, Upper Bidwell Park about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 181 Comment
  CHSC45812  Rubus laciniatus L. P. Janeway 1987-6-13 2201 Butte Southeast side of Concow Rd at Flea Valley. Along Flea Valley Cr. 1127 Comment
  CHSC52474  Rubus parviflorus L. P. Janeway 1987-6-27 2333 Butte Along dirt rd 0.6 mi E of Ramsey Bar; just N of 'The Big Hill'. At creeklet draining under the road. 1386 Comment
  SEINET10483604  Rubus procerus Mary Susan Taylor 1980-6-7 Taylor 2792 Butte S side of Hwy 162, at Butte County/ Glenn County border, ca. 20 mi N of Chico. 30 Comment
  CHSC111370  Rubus ursinus Lowell Ahart 2012-5-14 18058 Butte 100 feet east of Table 13, south of Big Chico Creek, on the north side of the paved road, Lower Bidwell Park, Chico. 76 Comment
  CHSC1604  Rubus ursinus A. Goekler 1928-3-30 Butte Bidwell Park. 60 Comment
  CHSC1606  Rubus ursinus R. M. Staley 1952-7-13 Butte Butte Creek. Comment
  CHSC96044  Rudbeckia occidentalis var. occidentalis L. P. Janeway 2006-8-12 8837 Butte Northern High Sierra Nevada. At Concow Road crossing of upper-most Keyser Creek 0.8 km east-northeast of Bald Mountain summit. 1682 Comment
  CHSC31944  Rumex acetosella J. D. Jokerst 1979-5-2 1223 A Butte Top of North Table Mt., ca 100 m N of Cherokee Rd. where it intersects the E edge of mountain. 396 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
  JEPS119634  Rumex conglomeratus Lowell Ahart 2012-6-14 18184 Butte On the north side of Big Chico Creek, near the intersection of Arbutus and Vallombrosa Avenue, Lower Bidwell Park, Chico. Comment
  JEPS124099  Rumex conglomeratus Lowell Ahart 2015-6-6 20204 Butte About 5/8 mile northwest of the iron gate along Cherokee Road, Beatson Hollow, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  CAS-BOT-BC433476  Rumex dentatus Lowell Ahart 1981-5-16 2804 Butte Gray Lodge, 11 miles southwest of Gridley. Gray Lodge Waterfowl Management Area. 35 Comment
  CHSC43715  Rumex salicifolius var. denticulatus Vernon Oswald 1987-5-6 2377 Butte Butte Creek Reserve ca. 0.1 mi e of Hwy 99 on the n side of Butte Creek. 67 Comment
  SD175847  Rumex salicifolius var. denticulatus D. G. Kelch 2006-8-2 06 343 Butte Along Butte Creek, north of Durham-Dayton Highway. 46 Comment
  CHSC71172  Sagina apetala Lowell Ahart 1998-6-9 8003 Butte In 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
  CHSC33659  Sagina saginoides R. A. Schlising 1981-7-28 4172 Butte N of Inskip in NE part of county; near junction of creek from Coon Hollow and W Branch of N Fork of Feather River. In creekbed margin. 1328 Comment
  CHSC69717  Sagina saginoides Lowell Ahart 1997-10-20 7921 Butte On the west side of the sharp bend in the South Fork of the Feather River, about 1/4 mile north of the bridge across the river, about 3/4 mile north of Golden Trout Crossing, 3 miles (air) northwest of Sly Creek Reservoir Dam. 914 Comment
  CAS-BOT-BC445663  Sagittaria cuneata E. B. Copeland 1930-7-29 405 Butte Above Jonesville 1700 Comment
  UC935789  Sagittaria latifolia Herbert L. Mason and Verne Grant 1946-8-14 13040 Butte Butte Sink Comment
  CAS-BOT-BC445726  Sagittaria latifolia Alice Eastwood 1919-9-9 s.n. Butte Chinese garden, Marysville Comment
  JEPS107367  Salix exigua Lowell Ahart 2005-4-14 11709 Butte East of the railroad tracks, north of Spruce Street, Gridley 28 Comment
  CHSC111739  Salix exigua var. hindsiana Lowell Ahart 2012-6-28 18237 Butte On the north side of Big Chico Creek, east of Sycamore Pool, Lower Bidwell Park, Chico. 61 Comment
  CHSC37778  Salix gooddingii M. S. Taylor 1982-5-22 4498 Butte Graylodge Wildlife Refuge, at end of West Liberty Rd, ca. 12 mi sw of Gridley. 19 Comment
  JEPS119845  Salix gooddingii Lowell Ahart 2012-3-23 17794 Butte Spring like area at the old homestead, about 30 yards southeast of intersection of South Rim Trail and Ten Mile House Road, about 5/8 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  CAS-BOT-BC129576  Salix lasiolepis var. lasiolepis John Thomas Howell; Gordon H. True 1969-4-8 45487 Butte Near Pulga Bridge west of Pulga - Sierra Nevada 411 Comment
  CAS-BOT-BC124574  Salix lemmonii E. B. Copeland 1931-6-11 620 a Butte Jonesville, Kirby's Meadow 1750 Comment
  POM219070  Salix lemmonii E. B. Copeland 1931-8-1 620 Butte Jonesville. Massed about the 'Lily Pond' 1700 Comment
  CHSC42434  Salix lucida subsp. lasiandra Lowell Ahart 1987-4-20 5492 Butte Along North Honcut Creek, abour 2 1/2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 67 Comment
  CHSC42544  Salix melanopsis Lowell Ahart 1987-5-6 5539 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 274 Comment
  UC446422  Salix scouleriana E. B. Copeland 1931-6-11 Butte Kirby's Meadow 1800 Comment
  CHSC110041  Salsola tragus Lowell Ahart 2012-10-28 18517 Butte East edge of Highway 70, about 1/4 mile south of Cottonwood Road, about 3 miles north of Oroville. 90 Comment
  SEINET12320801  Salvia sonomensis M. S. Taylor 1975-1 493 Butte Ca 0.5 mi E of Cohasset Hwy, ca 10 mi N of Chico Comment
  CHSC102792  Sambucus mexicana Lowell Ahart 2009-5-30 15807 Butte On the east side of Guardians Trail, about 50 yards northeast of Pine Trail, Upper Bidwell Park, about 3/8 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 411 Comment
  CHSC11858  Sambucus racemosa E. B. Copeland 1930-7-12 480 Butte Above Jonesville. Along north brow of high ridge. 640 Comment
  SEINET11994764  Samolus floribundus Unknown 1984-1 4762 Butte ca 1 mi N & 3 mi E of Honcut, ca 12 mi S of Oroville, Peter Ahart Ranch, along North Honcut Creek 50 Comment
  CHSC43264  Samolus parviflorus Lowell Ahart 1987-9-4 5884 Butte On the bottom of North Honcut Creek, about 2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 67 Comment
  CHSC42660  Sanicula bipinnata Vernon Oswald 1985-4-16 1721 Butte Upper Bidwell Park, Chico, on the slope bordering the s side of the Golf Course. 121 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
  SFV11651  Sanicula bipinnata M. L. Vincent 1964-4-9 534 Butte 1.5 miles south of Pearson Road on Clark Road. Comment
  CHSC3280  Sanicula bipinnatifida M. L. Hillier 1966-3-21 Butte Along rd. side about 1 1/4 miles e. of Hwy. 99 E. on Pentz rd. 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
  CAS-BOT-BC223240  Sanicula bipinnatifida H. M. Hall 1917-5-13 10301 Butte Paradise Comment
  SEINET12120600  Sanicula bipinnatifida K. E. Warwick 1978-1 9 Butte ca 5 m S of Pentz Rd at intersection of Pentz Rd & Magalia-Pentz Hwy, ca 18 km N of Oroville Comment
  CHSC45882  Sanicula crassicaulis Lowell Ahart 1981-4-24 2783 Butte Along the sides of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 3 miles east of Honcut. 45 Comment
  CHSC36539  Sanicula tracyi L. Ahart 1982-6-4 3548 Butte On a lava cap, 1.5 mi e of Camp 18 and ca 8 mi e of Feather Falls. 1000 Comment
  CHSC29097  Sanicula tuberosa M. S. Taylor; J. D. Jokerst 1980-4-18 2521 Butte On e side of Humbug Rd, ca. 5 mi s of Nimshew. 518 Comment
  CHSC60647  Sanicula tuberosa Vernon H. Oswald 1993-4-12 5256 Butte S wall of Flag Canyon on the NW edge of North Table Mtn., N of Oroville. Near the top of an old track running through brushy live oak woodland from the bottom of the canyon up onto the grassy top of Table Mtn. 341 Comment
  CHSC63954  Sanicula tuberosa B. Castro; L. Janeway 1994-4-21 510 Butte On Watson Ridge, on S-trending ridge S of USFS Rd 21N25A. 1054 Comment
  CHSC59325  Satureja douglasii L. P. Janeway; B. Castro 1992-4-17 4153 Butte About 300 ft south of Galen Road and ca 400 ft west of Bald Rock Road; ca 1 1/2 mi south of Brush Creek. 987 Comment
  CAS-BOT-BC436854  Saxifraga Lowell Ahart 1975-4-2 s.n. Butte Peter Ahart Ranch, Honcut 45 Comment
  CAS-BOT-BC436867  Saxifraga Lowell Ahart 1975-3-3 s.n. Butte Peter Ahart Ranch, Honcut 45 Comment
  CHSC39231  Scandix pecten-veneris M. S. Taylor; K. Tharp 1983-3-11 5225 Butte At jct of Bell Ranch Rd and Oroville-Quincy Hwy (162), ca. 1 mi sw of Berry Canyon School, s of Lake Madrone. Ca. 8 air mi ne of Oroville. Comment
  CAS-BOT-BC111655  Schoenoplectus mucronatus M. K. Bellue 1947-6-1 s.n. Butte 2 miles south of Palermo. 35 Comment
  NY663861  Schoenoplectus mucronatus L. Ahart 1980-9-8 2592 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC22406  Scirpus congdonii Lowell Ahart; V. Oswald 1987-7-1 3083 Butte Cluster of snow lakes ca. 3 mi (air) s of Humbug Summit, 0.5 mi w of Butte-Plumas county line, 1935 Comment
  CHSC78321  Scirpus congdonii Lowell Ahart 2000-6-29 8547 Butte By the road culvert, on the northwest side of Flea Meadow, about 1/2 mile west of Flea Mountain, about 3 1/2 miles (air) north of Concow Reservoir, about 5 miles (air) east of Magalia. 1036 Comment
  CHSC46317  Scirpus diffusus Vernon Oswald 1989-6-8 3805 Butte W side of Concow Rd at Flea Valley. 1118 Comment
  CHSC56811  Scirpus diffusus L. P. Janeway; C. A. Janeway 1986-9-13 1847 Butte Wet meadow just east of Scotts John Creek, above Road 26N27 and across from small side road. 1737 Comment
  UC1100855  Scirpus maritimus Herbert L. Mason 1945-9-19 12732 Butte nw Pennington (Gray Lodge Game Refuge); , nw of Pennington Comment
  UC1100920  Scirpus maritimus Herbert L. Mason, Verne Grant 1946-8-15 13046 Butte Greylodge Game Refuge near caretaker's house (Butte Sink); , Greylodge Game Refuge Comment
  CHSC45117  Scirpus microcarpus Vernon Oswald 1987-5-25 2923 Butte Butte Creek Reserve on the se side of Butte Creek ne of Hwy 99, downstream from the dam for the Durham Mutual Ditch. 68 Comment
  SEINET3449113  Scrophularia californica subsp. floribunda Unknown 2003-4-10 10087 Butte Oroville, Oroville, about 1.75 miles north 210 Comment
  UC1563260  Scrophularia californica subsp. floribunda unknown 1990-10-21 6634 Butte 1/2 mi w Gold Flat (ca 1 mi n of Nelson Bar Rd, Lake Oroville) 243 Comment
  CHSC58274  Scutellaria californica Lowell Ahart 1992-5-9 6761 Butte On the north side of the dirt road, on the north side of Thermalito Diversion Pool, Lake Oroville Recreation Area, about 2 (air) miles north of Oroville. 76 Comment
  CHSC87422  Scutellaria tuberosa R. D. Fischer 2004-3-15 112 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located at northern end Guardian Trail, along trail. 411 Comment
  CHSC38405  Sedella pumila Vernon Oswald 1983-4-18 342 Butte Upper Bidwell Park, Chico, on the north rim at the level of Horseshoe Lake. 152 Comment
  CAS-BOT-BC416976  Sedella pumila Herbert L. Mason 1941-4-6 12409 Butte Three miles S of Chico near junction of road to Paradise 91 Comment
  HSC92528  Sedella pumila Jeanne McFarland, Kathie Meyer, Anne Mullenniex 1995-4-9 30 Butte On N Table Mtn., S of Paradise on Cherokee Rd., S end of Table Mtn. proper 381 Comment
  SEINET8472473  Sedella pumila M. J. Williams 1967-4-22 s.n. Butte Table Mtn., 5 miles from Cherokee. 396 Comment
  SEINET8552582  Sedum B. Nightingale 1961-4-29 s.n. Butte Butte Creek, ca 10 miles E of Chico. 61 Comment
  CHSC4666  Sedum spathulifolium R. Carter 1966-4-11 332 Butte Found Ca. 1 mi. E of Bidwell Bar along R.R. tracks, just W of R.R. bridge over S Fork. 152 Comment
  CAS-BOT-BC62116  Selaginella hansenii Lowell Ahart 1968-3-13 s.n. Butte Peter Ahart Ranch, Honcut 45 Comment
  CHSC31466  Selaginella hansenii M. S. Taylor 1981-1-5 3371 Butte Ca. 100 ft e of Pentz-Magalia Hwy, ca. 1 mi s of Kunkle Reservoir, ca. 3 mi s of Paradise. 411 Comment
  SEINET10470981  Selaginella hansenii Lawrence P. Janeway 1984-10-8 Janeway 1179 Butte Pulga SW quad. T22N R5E SW 1/4 of sec. 7, 2000 feet. Along Hwy 70 above North Fork Feather River. On steep S-facing serpentine outcrop; open. 610 Comment
  SEINET10530445  Selaginella wallacei Mary Susan Taylor 1980-5-27 Taylor 2666 Butte T21N R6E sc sec 30. Big Bend quad. On Big Bald Rock, ca. 3 mi E of Lake Madrone; Yellow Pine Forest, large granite dome 998 Comment
  CAS-BOT-BC363286  Senecio aronicoides E. B. Copeland 1929-7-14 498 Butte Jonesville 1650 Comment
  CHSC28495  Senecio aronicoides M. S. Taylor; J. D. Jokerst 1979-7-21 2163 Butte Humboldt Peak, at Humboldt Summit. 2133 Comment
  CHSC413  Senecio aronicoides M. Roberson 1956-4-23 Butte SW of Paradise along Skyway. 426 Comment
  CHSC62343  Senecio aronicoides B. Castro; J. Jurewicz 1990-5-9 429 Butte Ca 0.4 mi NW of Little Bald Rock, 0.2 mi E of Bald Rock Rd. 1005 Comment
  UC1184119  Senecio aronicoides E. B. Copeland 1929-7-14 Butte Jonesville 1600 Comment
  CHSC86441  Senecio eurycephalus var. lewisrosei Jenny Marr 1993-7-1 93 Butte Located in Northern Sierra Nevada, between Concow and Pulga, on a serpentine outcrop belonging to LNF. Site approx. 4 air miles NE of Concow Reservoir. 1105 Comment
  SFV11410  Senecio hydrophiloides M. L. Vincent 1965-4-17 638 Butte 6 miles north of New Feather River bridge (west fork). Comment
  JEPS117239  Senecio sylvaticus Lowell Ahart 2010-5-20 16707 Butte On both sides of the Yahi Trail, east if the dirt road, west of Big Chico Creek, Upper Bidwell Park, about 6 miles (air) northeast of Chico 182 Comment
  CHSC61298  Senecio triangularis Lowell Ahart 1993-8-8 7148 Butte On the bottom of a stream, about 1/2 mile north-west of Lewis Flat, about 3/4 mile north-west of Sly Creek Dam. 1097 Comment
  POM219171  Senecio triangularis H. F. Copeland 1928-8-17 251 Butte Jonesville. Comment
  CHSC108784  Senecio vulgaris L. P. Janeway 2011-6-7 10364 Butte Sacramento Valley. Along Nelson Ave 1.0 road km west of its bridge over Thermalito Forebay, about 5.7 air km west of Oroville. Weedy edge of road side drainage. 99 Comment
  JEPS122269  Senecio vulgaris Lowell Ahart 2014-4-9 19329 Butte On the north side of Colusa Highway, about 4/10 mile east of the intersection of Pennington Road and Colusa Highway, about 5 1/2 miles west of Gridley. Comment
  CAS-BOT-BC364545  Senecio vulgaris Lowell Ahart 1980-5-4 2155 Butte Thermalito 65 Comment
  CHSC117417  Setaria parviflora B. Castro 2008-7-15 1758 Butte Sacramento Vallye. 2 mi W of Hwy 99 and 1 mi SE of Richvale, at NE corner of Cherokee Canal and Richvale Hwy. At levee toe just up from rice field. 32 Comment
  CDA34168  Sherardia arvensis L. Ahart 2009-4-17 15547 Butte On the south slope of a ridge about 150 yards west of Highway 32, near the south boundary, Upper Bidwell Park, about 5 miles (air) northeast of Chico. Comment
  CHSC70854  Sherardia arvensis Lowell Ahart 1998-4-29 7955 Butte Northeast of the large parking area on North Table Mountain, on the east side of Cherokee Road, about 7 miles north of Oroville. 426 Comment
  JEPS115327 Image available Sherardia arvensis Lowell Ahart 2009-4-17 15547 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
  RSA325096  Sherardia arvensis M. S. Taylor 1981-5-1 3585 Butte E side of Hwy 70. Ca 4 air miles NW of Oroville. 91 Comment
  CHSC29406  Sidalcea asprella R. A. Schlising; D. Ikeda, R. Banchero 1980-6-23 3759 Butte E of Lake Oroville, 3.4 mi N and W of Forbestown along Forbestown Road. 892 Comment
  CHSC29724  Sidalcea calycosa J. D. Jokerst; T. B. Devine 1979-7-6 405 A Butte Top of North Table Mt, ca 100 m NW of the jct of the E edge of Table Mt and Cherokee Rd. 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
  CHSC48609  Sidalcea calycosa Vernon H. Oswald 1984-4-1 1113 Butte Humboldt Rd, about mid-way between El Monte and Bruce roads, Chico. 79 Comment
  UCD116584  Sidalcea calycosa Arthur W. Dawson 1982-4-18 12 Butte 50 m south of Highway 32, 2.5 km east of U.S. 99. 75 Comment
  CHSC82966  Sidalcea gigantea L. P. Janeway; B. Castro 2002-8-11 7696 Butte Northern High Sierra Nevada. Along Four Trees Road 0.6 km north of Coyote Gap; uppermost southeastern fork of Mill Creek. At drainage though not immediately adjacent to the water; roadside. 1341 Comment
  UC1755048  Sidalcea gigantea Dean W. Taylor 1995-8-6 15380 Butte 3 air mi NE of Stirling City (near Jackass Flat); Plumas National Forest 1219 Comment
  CHSC45945  Sidalcea hartwegii Lowell Ahart 1978-5-16 1734 Butte Peter Ahart Ranch, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  SBBG71471  Sidalcea hirsuta A. A. Heller 1926-5-8 13937 Butte 9 mi N of Chico Comment
  UCD116578  Sidalcea hirsuta R. N. Raynor; H. A. Hannesson 1941-5-9 s.n. Butte 4 miles west of Oroville. Comment
  JEPS104599  Sidalcea malviflora Lowell Ahart 1993-10-3 7269 Butte W branch of Wildcat Creek, about 2 mi NE of Coyote Gap 1402 Comment
  SEINET10937544  Sidalcea malviflora subsp. celata Mary Susan Taylor 1978-7-21 Taylor 1834 Butte On N side of Oroville-Quincy Hwy, in open meadow, ca. 1 mi S of Butte-Plumas County line; Yellow Pine Forest. 1341 Comment
  CHSC76948  Sidalcea robusta Ida Ryan 1893-5-1 Butte Little Chico Creek. Comment
  CHSC38301  Silene antirrhina Vernon Oswald 1983-6-5 634 Butte Upper Bidwell Park, Chico, on the north rim overlooking Sycamore Creek Canyon 2000 ft w of the e end of the North Rim Trail. 390 Comment
  JEPS114713  Silene antirrhina Lowell Ahart 2008-5-21 14773 Butte Dry bare granite soil, 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 246 Comment
  CAS-BOT-BC385883  Silene douglasii A. A. Heller 1914-8-7 11661 Butte Summit east of Jonesville 2133 Comment
  CHSC219  Silene gallica M. Roberson 1956-5-14 Butte S.W. of Paradise, along Skyway. 426 Comment
  CHSC44486  Silene gallica Lowell Ahart 1988-5-1 5974 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  POM196103  Silene lemmonii E. B. Copeland 1929-7-15 359 Butte Jonesville. 1550 Comment
  SD1633  Silene occidentalis E. B. Copeland 1930-7-28 Butte Jonesville 1500 Comment
  CHSC101977  Silybum marianum J. Boze 1982-5-8 439 Butte Along Eaton Road, Chico, about 1 mile from Hwy 99. Comment
  JEPS98990  Sinapis alba Lowell Ahart 2001-4-15 8723 Butte On the north side 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) SW of Gridley. 22 Comment
  CHSC34530  Sinapis arvensis R. E. Preston 1982-2-18 167 Butte N side of Keefer Lane ca. 0.4 mi w of Cohasset Hwy; ca. 6 mi n of downtown Chico. In stock pen. 106 Comment
  CHSC481  Sinapis arvensis M. Goin 1933-3-17 Butte Field near Chico. 57 Comment
  CHSC484  Sinapis arvensis G. Spurlock 1935-5-20 Butte Chico. Orchards and grainfields. 57 Comment
  CHSC35654  Sisymbrium officinale R. E. Preston 1982-4-14 239 Butte N. Table Mountain, ca. 5 mi n of Oroville. 376 Comment
  CHSC12106  Sisyrinchium bellum J. M. Pitts 1972-4-19 149 Butte 3.5 mi ne Honeyrun Rd on Humbug Rd. n side of road. Comment
  JEPS115613  Sisyrinchium bellum Lowell Ahart 2009-5-23 15734 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
  UC600468  Smilacina stellata H. F. Copeland 1929-6-12 Butte Jones Creek Jonesville 1524 Comment
  CHSC97325  Smilax californica L. P. Janeway 2007-6-25 9070 Butte Northern High Sierra Nevada. Plumas National Forest; along north bank of French Creek between Bidwell Creek and Jack Creek. 604 Comment
  JEPS119785  Smilax californica Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18007 Butte South of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  CHSC109770  Solanum americanum Lowell Ahart 2012-10-20 18514 Butte South of Table 34, west of Cedar Grove, Lower Bidwell Park, Chico. 68 Comment
  CHSC97757  Solanum americanum Lowell Ahart 2007-11-3 14573 Butte Below the high water line of Lake Oroville, about 1/2 mile east of the Power House below Kunckle Reservoir, about 3/4 mile north of the Lime Saddle Campground, about 5 1/4 miles (air) southeast of Paradise. 257 Comment
  RSA724881  Solanum americanum L. Ahart 2006-9-11 13296 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
  SEINET7274373 Image available Solanum parishii S. Jones 29 Butte ca. 0.25 mi E of jct of Stilson Canyn Rd. and Bruce Rd.; Butte County Comment
  CAS-BOT-BC365378  Solidago elongata E. B. Copeland 1930-8-27 499 Butte Jonesville 1500 Comment
  LA203953  Solidago elongata E. B. Copeland; 1930-8-27 499 Butte Jonesville 1500.0 Comment
  CHSC13804  Solidago velutina subsp. californica K. R. Stern 1972-9-19 3782 Butte Margins of Perkins Lake, Llano Seco Rancho, ca. 10 mi sw of Chico. Comment
  CHSC26703  Solidago velutina subsp. californica M. S. Taylor; M. Hayes, R. Schlising 1977-8-17 1455 Butte On both sides of Hwy 32, ca. 6 mi s of Forest Ranch. 609 Comment
  CHSC422  Solidago velutina subsp. californica E. Walker 1932-8-21 Butte Paradise. Comment
  CHSC117004  Sonchus asper subsp. asper Lowell Ahart 2016-6-4 20926 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. 732 Comment
  CHSC107249  Sonchus oleraceus Lowell Ahart 2011-6-3 17360 Butte Wood chipped planter area between Bidwell Mansion parking area and Gateway Science Museum, Chico. 60 Comment
  UCD136187  Sonchus oleraceus E. M. Johnston 1915-1 140 J Butte Biggs. Comment
  SEINET10474015  Sonchus tenerrimus Mary Susan Taylor, Lowell Ahart 1982-10-11 Taylor 5150 Butte T17N R1E n/ne sec 24. Pennington quad. Graylodge Wildlife Refuge, vicinity of check-in station, sw jct of Pennington & Rutherford Rds, ca. 12 mi sw of Gridley. 70 ft. 21 Comment
  CHSC116006  Sorbus scopulina Lowell Ahart 2015-10-9 20551 Butte East side of Philbrook Road, about 100 yards southeast of the bridge across the West Branch of the Feather River, about 2 miles (air) northwest of Philbrook Reservoir. 1510 Comment
  SEINET11787803  Sparganium emersum L. P. Janeway 1987-1 2248 Butte Mdw on Pinkard Cr between Lewis Ridge & Moorville Ridge, 6.5 mi from Challenge-LaPorte Rd & Travis 1082 Comment
  CDA20087  Spartium junceum R. Harrie 2003-1-13 PDR 1280328 Butte Northern California; Old mine site. 0 Comment
  CHSC98980  Spergula arvensis subsp. arvensis Lowell Ahart 2008-5-8 14711 Butte Below the high water line of Lake Oroville, about 100 yards south of the poor parking area, about 50 yards east of McCabe Creek, about 3/4 mile southwest of the Enterprise Bridge, about 11 miles (air) east of Oroville. 259 Comment
  CHSC34999  Spergularia bocconi A. Ratcliff; R. A. Schlising 1980-4-6 3550 Butte About 5 mi S of Chico, near junction of Oroville-Chico Road and Neal Road. At roadside. 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
  CHSC33704  Spergularia marina L. Ahart 1981-4-6 2743 Butte On Gray Lodge Waterfowl Mgmt Area, w of the HQ, ca. 8 mi sw of Gridley. 35 Comment
  CHSC42488  Spergularia rubra Lowell Ahart 1987-5-6 5518 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  SEINET10537508  Spergularia rubra Mary Susan Taylor 1979-8-4 Taylor 2182 Butte T23N R5E center of S border sec. 22/27. Ca. 1 mi N of Cresta Powerhouse on Hwy 70, ca. 30 mi N of Oroville; granitic soils. 488 Comment
  CAS-BOT-BC147947  Spiraea douglasii Lowell Ahart 1988-6-29 6114 Butte Along Rockefeller Road, about 1/2 mile south of the Rockefeller School, about 2 1/2 miles south-west of Big Bald Rock 762 Comment
  CHSC25365  Spiranthes porrifolia Hayes; Warner 1977-8-14 39 Butte Along Butte Creek 10 mi n of Butte Meadows turn on Highway 32. 1280 Comment
  CHSC88186  Spiranthes romanzoffiana Lowell Ahart 2004-8-2 11325 Butte Small bog in a large meadow, about 200 yards east of Keyser Creek, on the north side of the dirt County Road, about 3/4 mile (air) northeast of Oak Point, about 1/2 mile (air) west of Big Kimshew Creek, about 1 3/4 miles southeast of Bald Mountain. 1452 Comment
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Sep 6 2011
  CHSC49641  Spirodela polyrhiza Vernon Oswald 1987-4-20 2334 Butte Butte Creek Preserve on the s side of the creek ne of the Skyway. On the edge of a dredger pond. 85 Comment
  CHSC94616  Stachys pycnantha Lowell Ahart 2006-9-11 13286 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
  UCD125780  Stachys pycnantha L. E. Hazeltine 1916-7-25 s.n. Butte Chico. Comment
  CHSC48274  Stellaria calycantha Vernon Oswald 1987-7-13 3115 Butte Near the intersection of a Forest Service road and the sw branch of Butte Creek, ca. 1 mi (air) se of Summit Lake, ca. 1 mi (air) e of Snow Mt, ca. 4.75 mi (air) se of Jonesville. In bed of a streamlet. 1853 Comment
  CHSC26854  Stellaria longipes var. longipes M. S. Taylor; M. Hayes 1978-6-24 1655 Butte In meadow, on n side of Scotts John Rd, ca. 3 mi e of its juct with Old Humboldt Rd, ca. 5 mi e of Jonesville. 1676 Comment
  JEPS107361  Stellaria media Lowell Ahart 2005-4-2 11689 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
  CHSC109120  Stellaria nitens Lowell Ahart 2012-3-23 17777 Butte In a small meadow opening in brush, about 100 yards south of the intersection of Guardian Trail and Ten Miles House Road, about 1/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. 437 Comment
  JEPS93969  Stellaria pallida Vernon Oswald 1998-4-6 8899 Butte North Table Mt. on the plateau on the s. side of Beaston Hollow (ca. 1.5 mi. w. of Cherokee Rd.); North Table Mt., Beaston Hollow 323 Comment
  CHSC46827  Stellaria umbellata R. A. Schlising; L. P. Janeway 1988-7-16 4606 Butte N part of county, S of Humbug Summit, at upper reaches of Willow Creek; meadow edge. 1950 Comment
  JEPS99035  Stephanomeria elata Lowell Ahart 1998-11-11 8064 Butte Near large oak trees, north of the stream to Phantom Falls, about 1/2 mile west of the cattle chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 371 Comment
  SEINET10506968  Stipa Mary Susan Taylor 1978-5-6 Taylor 1576 Butte Just N of Magalia, in large serpentine area along the Skyway. 610 Comment
  SEINET10448512  Streptanthus campestris Lowell Ahart, Peter Ahart 1983-6-30 Ahart 4187 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
  SEINET11986398  Streptanthus diversifolius S. M. Grossberg 1978-1 10 Butte North Table Mountain, ca 1 mi NNE of Cherokee Rd, 6 mi N of Oroville 381 Comment
  CAS-BOT-BC87387  Streptanthus longisiliquus Lowell Ahart 1983-8-16 4283 Butte Sierra Nevada. Along edge of Humboldt Road, about 3 miles southwest of butte Meadows. 1450 Comment
  CHSC39408  Streptanthus longisiliquus L. Ahart 1983-9-17 4434 Butte Along edge of dirt road, ca. 2.5 mi s of Stirling City. 1100 Comment
  CAS-BOT-BC87427  Streptanthus polygaloides Lewis S. Rose 1963-6-2 63068 Butte 2 miles south of Pulga. North Fork of Feather River. 579 Comment
  CAS-BOT-BC87439  Streptanthus polygaloides Lowell Ahart 1988-5-30 6034 Butte Along Poe Powerhouse Road, about 0.1 mile north of the bridge across the North Fork of the Feather River. 365 Comment
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Sep 7 2020
  CAS-BOT-BC87442  Streptanthus polygaloides A. A. Heller 1938-5-28 15120 Butte 23 miles east of Oroville on Highway #24. Comment
  UC1492817  Streptanthus polygaloides Freed W. Hoffman 1952-6-7 4174 Butte near Magalia Railroad trestle Comment
  CHSC36694  Streptanthus tortuosus R. E. Preston 1982-5-18 286 Butte Roadcut, on w side of Oro-Quincy Hwy, ca. 0.4 mi n of Canyon Cr bridge over Lake Oroville, ca. 7 mi ne of Oroville. 304 Comment
  CHSC42697  Streptanthus tortuosus Lowell Ahart 1987-5-9 5597 Butte 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
  HSC96704  Streptanthus tortuosus var. orbiculatus L. P. Janeway, Matt Brown 2005-5-17 8391 Butte N High Sierra Nevada, Plumas National Forest, 0.3 km W of Cedar Creek, 2.6 km NNW of the mouth of Cedar Creek at N Fork Feather River 1295 Comment
  UCD150344  Stuckenia pectinata William Anderson 1964-7-24 s.n. Butte Colusa Highway and Pennington Rd. Comment
  CAS-BOT-BC48054  Styrax redivivus John Thomas Howell 1973-7-9 49700 Butte Feather River Highway near Bear Ranch Creek. 457 Comment
  CAS-BOT-BC48060  Styrax redivivus A. A. Heller 1915-5-25 11891 Butte Ridge above Enterprise in the Sierra Nevada. 609 Comment
  CHSC29799  Swertia albicaulis var. nitida M. S. Taylor; J. D. Jokerst 1980-6-14 2880 Butte On n side of Zink Rd, near entrance to Zink Ranch, ca. 2 mi e of Lake Madrone. 762 Comment
  RSA4159  Symphoricarpos acutus E. B. Copeland 1930-7-7 479 Butte Jonesville. 1700 Comment
  CAS-BOT-BC234616  Symphoricarpos mollis A. A. Heller 1913-6-7 10802 Butte Near Stirling 1074 Comment
  CAS-BOT-BC99224  Symphyotrichum ascendens A. A. Heller 1914-8-7 11651 Butte Butte Meadows 1219 Comment
  SD50980  Symphyotrichum chilense Darley F. Howe 1960-9-20 Butte North fork of Feather River Canyon, 8 miles from Oroville 149 Comment
  CAS-BOT-BC98957  Symphyotrichum foliaceum var. parryi A. A. Heller 1928-7-25 14697 Butte Along the forest service trail between Jonesville and Butte Creek House Comment
  CHSC65886  Symphyotrichum lanceolatum var. hesperium Vernon H. Oswald 1996-4-20 7401 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Sacra-mento Valley. 32 Comment
  UC1594556  Symphyotrichum spathulatum Lowell Ahart 1992-9-9 6920 Butte ca .5 mi se of, (along a deep wash below the high water line of Lake Oroville) Kunkle Reservoir; Lake Oroville 243 Comment
  UCSB63840  Symphyotrichum spathulatum Ahart, Lowell 1997-8-1 Butte Little Kinshew Creek, in Snow Meadow, about 1/4 mile east of table Mountain, about 8 miles (air) northeast of Stirling City; T25N, R5E, Section 33 1524 Comment
  CHSC69670  Symphyotrichum spathulatum var. spathulatum Vernon H. Oswald 1987-7-16 3122 Butte West Branch of the Feather River upstream of where it crosses the road to Jones Meadow, ca. 1 mi (air) NE of Inskip. 1341 Comment
  UCD142991  Tanacetum vulgare M. S. Taylor 1982-8-16 4992 Butte south end of Stirling City, along both sides of the Skyway. 1036 Comment
  CHSC4203  Taraxacum officinale J. Wheeler 1967-5-20 28 Butte In lawn at 248 Serviss St. Durham. Comment
  UC106147  Tauschia hartwegii Mrs. R. M. Austin Mar. 1896 Butte Little Chico Creek Comment
  CHSC60950  Tauschia kelloggii Lowell Ahart 1993-6-26 7029 Butte On the west side of the dirt road, Mooreville Ridge, about 1 mile west of the Lost Creek Reservoir. 1188 Comment
  SEINET10483064  Tellima grandiflora Mary Susan Taylor 1981-4-28 Taylor 3569 Butte T23N R5E sw sec 32 to T22N R5E ne sec 5 Pulga SW quad. Along Four Trees Rd, ca. 0.5 to 1 mi E of Hwy 70, ca. 2-3 mi NE of Pulga. Yellow Pine Forest; 2200-2400 ft. 670 Comment
  CHSC31765  Tetrapteron graciliflorum L. Ahart 1976-4-14 1065 Butte On gravel bar along a small wash. Peter Ahart Ranch, Honcut. 45 Comment
  SEINET5334384  Tetrapteron graciliflorum K. Conger 1908-1 s.n. Butte Brush Creek Comment
  CAS-BOT-BC399765  Thalictrum polycarpum Lowell Ahart 1985-5-10 4954 Butte Along the east branch of Potter Ravine, about 2 1/4 miles north of Oroville Dam 350 Comment
  CAS-BOT-BC197422  Thinopyrum ponticum John Thomas Howell 1961-9-22 36785 Butte Pulga bridge, Feather River Highway Comment
  CHSC110032  Thuja Lowell Ahart; Josephine Guardino, Tyron Chang 2012-10-12 18478 Butte Just east of the sign Orient Street and E 1st Street, on the south side of Annie's Glen, Lower Bidwell Park, Chico. 62 Comment
  UC2026892  Thuja Lowell Ahart, Josephine Guardino, Tyron Chang 2012-10-12 18478 Butte Just east of the sign Orient Street and E 1st Street, on the south side of Annie's Glen, Lower Bidwell Park, Chico. Comment
  CAS-BOT-BC88207  Thysanocarpus curvipes A. A. Heller 1919-3-29 13095 Butte Feather River near Yankee Hill. Comment
  CHSC33688  Thysanocarpus curvipes L. Ahart 1981-3-29 2711 Butte Along the edge of Ponderosa Way near the Ponderosa Dam, near Forbestown. 250 Comment
  CHSC43452  Thysanocarpus curvipes Lowell Ahart 1978-4-19 1657 Butte At the overlook at Feather Falls, about 6 miles north of the town of Feather Falls. 548 Comment
  CHSC50029  Thysanocarpus curvipes Lowell Ahart 1990-3-9 6415 Butte On the banks on the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CAS-BOT-BC88210  Thysanocarpus curvipes Lowell Ahart 1961-2-25 s.n. Butte Salmon Hole, Chico. 300 Comment
  CAS-BOT-BC88223  Thysanocarpus curvipes Lowell Ahart 1990-3-9 6415 Butte On the east side of Pacific Heights Road, about 3.5 miles southwest of Oroville. 33 Comment
  CHSC83948  Thysanocarpus radians Lowell Ahart 2003-3-24 10023 Butte Fields, about 50 yards north of the access road to the boat ramp at the Thermalito Afterbay, about 200 yards west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 48 Comment
  UCR228716  Thysanocarpus radians Charles Hughes 2008-3-18 021 Butte Oroville, west of 6th Street between Nelson Avenue School and baseball fields 105 Comment
  SEINET11991223  Thysanocarpus radians Unknown 1890-1 s.n. Butte no further locality Comment
  SEINET10449704  Tillaea erecta Mary Susan Taylor 1979-3-31 Taylor 1972 Butte Junction of Pentz-Magalia Hwy and Pentz Road, ca. 1/4 mi W of Hwy 70, ca. 22 mi N of Oroville; Valley Grassland. 198 Comment
  SEINET12050273  Tofieldia glutinosa L. Ahart, Ahart, P. 1984-1 4758 Butte about 1/2 mi E of Bald Mountain, about 5 mi NE of Stirling City 1750 Comment
  UC195475  Tonella tenella A. A. Heller 1914-3-12 11197 Butte e of Chico (in canyon of Big Chico Creek) 68 Comment
  SFV10340  Torilis arvensis M. L. Vincent 1963-6-6 376 Butte Nelson Bar Road, 1 mile east of Pentz Road. 300 Comment
  CDA31964  Torilis arvensis subsp. arvensis L. Ahart 2009-6-12 15837 Butte 10 yards north of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CHSC27942  Torilis arvensis subsp. purpurea M. S. Taylor; J. T. Howell 1976-4-27 1084 Butte On w side of Cohasset Hwy, ca. 7 mi n of Chico in Chaparral. 121 Comment
  CHSC1990  Torilis nodosa A. Goekler 1929-5-31 Butte Chico 57 Comment
  UC106143  Torilis nodosa Mrs. R. M. Austin 210 Butte Chico Comment
  CAS-BOT-BC81375  Torreya californica A. A. Heller 1914-6-24 11515 Butte West side of the Sierra Nevada at West Branch 1036 Comment
  NY17671  Torreya californica H. F. Copeland 1932-7-18 s.n. 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
  SEINET10471667  Torreya californica Mary Susan Taylor 1980-5-8 Taylor 2616 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
  CHSC101336  Toxicodendron diversilobum Lowell Ahart 2009-4-22 15565 Butte West side of Guardians Trail, about 50 yards north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  CHSC36832  Toxicodendron diversilobum Neal Schaeffer 1982-4-19 4 Butte Hwy 32, 3km n of Humboldt Rd/Hwy 32 junction. 425 Comment
  CHSC77416  Toxicodendron diversilobum Tim Stofer 1997-4-11 13 Butte This plant was located at the shooting range 100yrds. From the head od the South Rim Trail off South Park Dr. in Upper Bidwell Park. 76 Comment
  CHSC110257  Toxicoscordion paniculatum L. P. Janeway 2012-6-2 10836 Butte Northern High Sierra Nevada. Plumas National Forest; eastern slope of Bloomer Hill, 1.0 air km east of the top. 701 Comment
  CHSC23652  Toxicoscordion venenosum var. venenosum M. S. Taylor 1976-4-24 1066 Butte Scattered ca. 5 ft e of Oroville-Quincy Hwy, ca. 4 mi ne of Lake Madrone, ca. 13 mi ne of Oroville. 914 Comment
  CHSC44448  Toxicoscordion venenosum var. venenosum Lowell Ahart 1988-6-23 6066 Butte North of Forbestown Road, about 1/12 mile east of the intersection of Black Bart Road and Forbestown Road, about 1 mile west of Robinson Mill Road. 670 Comment
  CHSC22603  Trichostema lanceolatum Robert A. Schlising 1973-10-14 3117 Butte Bidwell Park, Chico, ca 0.25 mi NE of jct Upper Park Road and Manzanita Avenue. Comment
  JEPS95120  Trichostema lanceolatum Lowell Ahart 1997-9-6 7891 Butte about 3 1/2 air mi ne of Concow Reservoir (on nw side of intersection of Concow Road and Oakway, at Flea Valley, about 1/2 mi w of Flea Mountain); Flea Valley 792 Comment
  CHSC37258  Trichostema oblongum L. Ahart 1982-6-15 3575 Butte On a lava cap, ca. 1.5 mi e of Camp 18, ca. 8 mi e of Feather Falls. 1000 Comment
  CHSC2380  Trientalis latifolia R. Carter 1965-6-2 223 Butte Found .2 mi. N of Berry Creek School on Oroville-Quincy Rd. on E. bank beside road. 518 Comment
  CHSC30717  Trientalis latifolia M. S. Taylor 1980-5-27 2655 Butte On trail from parking lot to Big Bald Rock, ca. 3 mi e of Lake Madrone. 975 Comment
  CHSC52188  Trientalis latifolia L. P. Janeway 1989-5-19 3262 Butte Along rd to Sawmill Pk 3.1 mi from crossing of W Br Feather River. N-facing shaded road cutbank. 899 Comment
  CHSC111364  Trifolium Lowell Ahart 2012-5-4 17985 Butte About 200 feet south of stream in Beatson Hollow, about 1 1/4 mile northeast of the iron gate on the north side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 286 Comment
  CHSC109066  Trifolium albopurpureum Lowell Ahart 2012-4-20 17886 Butte Road cut, on the south side of Ten Mile House Road, about 1/4 mile west of Highway 32, about 9 miles (air) northeast of Chico, south part of Upper Bidwell Park. 335 Comment
  RSA713022  Trifolium albopurpureum L. Ahart 2006-5-10 12628 Butte On the north side of the dirt road, Bardees Bar Road, about 4 miles (air) southwest of Pulga. 445 Comment
  UC1130112  Trifolium albopurpureum F. W. Embree 1934-4-24 40 Butte 6 mi ne Biggs; Marysville quadrangle 30 Comment
  JEPS21871  Trifolium albopurpureum Annette Waters 1958-4-19 228 Butte 6.9 mi se junction with US Hwy 99E (en route from Oroville to Chico) Comment
  UC1565642  Trifolium barbigerum Lowell Ahart 1989-4-7 6202 Butte ca 20 ft n Cottonwood rd (ca 1/4 mi e os Cottonwood Creek, ca 1.25 mi w of Hwy 70, ca 5 air mi nw of Oroville) 60 Comment
  SBBG128722  Trifolium bifidum L. Ahart 2012-5-12 18042 Butte grassy sides of Guardian Trail, ca. 300 yards N of Humboldt Trail, ca. 1/8 mi W of Hwy 32, S part of Upper Bidwell Park, ca. 8 mi (air) NE of Chico 361 Comment
  RSA4242  Trifolium breweri E. B. Copeland 1929-7-20 376 Butte Jonesville. 1500 Comment
  CHSC106881  Trifolium campestre Lowell Ahart 2011-5-1 17341 Butte North side of the intersection of Georgia Pacific Way and Feather River Blvd, about 100 yards east of Highway 70, about 1 mile south of Oroville. 42 Comment
  UCD80313  Trifolium ciliolatum CNPS SN Foothill Team 2005-5-4 SNFN 0201 h Butte City of Chico, Upper Bidwell Park, on the west side of Big Chico Creek, on an east-facing slope. The plot location is ~1 mile from the end of Upper Park Road, and about 110 m upslope of the road. 273 Comment
  SEINET10452495  Trifolium ciliolatum Lowell Ahart 1985-4-24 Ahart 4885 Butte Along the steep sides of North Honcut Creek, Peter Ahart Ranch, about 1 and 1/4 miles north and 3 miles east of Honcut, about 12 miles south of Oroville. Comment
  RSA91550  Trifolium depauperatum A. A. Heller 1913-4-7 10732 Butte Hills six miles N of Oroville Comment
  SEINET7072744  Trifolium depauperatum var. amplectens A. G. Vestal 1963-5-9 s.n. Butte About 3.5 miles north of Oroville. Coordinate datum WGS 84/NAD83. (UTM Zone 10, 623209mE, 4374845mN. Coordinate datum: NAD 27.) Comment
  CHSC38526  Trifolium depauperatum var. depauperatum Vernon Oswald 1983-3-9 137 Butte Upper Bidwell Park, Chico, on the north slope, ca. 800 ft w of the power lines and 1600 ft n of Upper Park Rd. 140 Comment
  JEPS106003  Trifolium depauperatum var. depauperatum Lowell Ahart 2004-4-1 10707 Butte On the margins of vernal pools, on the north side of Nelson Avenue, about 45 yards west of the intersection of 20th Street and Nelson Avenue, Thermalito 53 Comment
  POM28729  Trifolium dichotomum C. C. Bruce 1898-05 2426 Butte [No location information provided.] Comment
  CHSC31758  Trifolium dubium L. Ahart 1975-5-12 770 Butte Near edge of small wash. Peter Ahart Ranch, Honcut. 45 Comment
  SD239756  Trifolium dubium George K. Helmkamp, E. A. Helmkamp 2012-4-14 18760 Butte Northwestern Sacramento Valley: Cox Lane, 1.3 miles west of its intersection with La Loma Way, c. 10.3 mi ENE (82a^z) of Gridley. 91 Comment
  CDA42766  Trifolium glomeratum L. Ahart 2011-5-1 17342 Butte North side of the intersection of Georgia Pacific Way and Feather River Blvd, about 100 yards east of Highway 70, about 1 mile south of Oroville. Comment
  CDA43072  Trifolium glomeratum L. P. Janeway, B. Castro 2011-6-5 10359 Butte Cascade Range Foothills.; East side of Chico; along south side of Humboldt Road 2.1 road km east of Bruce Road. Comment
  CHSC101688  Trifolium glomeratum Lowell Ahart 2009-5-8 15658 Butte On the south side of the gravel road, about 10 yards east of Cedar Grove Parking Area in Lower Bidwell Park, Chico. 67 Comment
  CHSC46372  Trifolium glomeratum Lowell Ahart 1989-5-28 6302 Butte In a small meadow north of Oregon Gulch Road, about 1 1/2 miles west of Rocky Point, about 10 miles east and 3 miles north of Oroville. 335 Comment
  CHSC34674  Trifolium hirtum M. S. Taylor 1981-4-30 3573 Butte NW corner of jct of Forbestown Rd and Lumpkin Rd (Feather Falls turnoff), ca. 10 air mi e of Oroville. 548 Comment
  UC1586474  Trifolium hybridum Vernon H. Oswald and Lowell Ahart 1991-7-15 4735 Butte 2.1 mi e junction (Forest Rd (Jordan Creek-Marble Creek Rd) and Oroville-Quincy Hwy, ca 5.75 air mi ne of Brush Creek) 1082 Comment
  UC1616625  Trifolium jokerstii Michael A. Vincent, Robert Rhode, and Jim Snowden 1996-3-29 7227 Butte n Oroville (w of Cherokee Rd, s side Beatson Hollow, from center to w edge of butte, cattle grazing area); North Table Mtn Comment
  JEPS105935  Trifolium microcephalum Lowell Ahart 2004-4-4 10721 Butte About 300 yards east of Wilber Road, southeast of the high hill crossed by Wilber Road, southeast of the wash, cattle pasture, about 3 miles (air) west of Thermalito 48 Comment
  SEINET10452520  Trifolium microcephalum Mary Susan Taylor 1981-5-5 Taylor 3598 Butte T20N R6E se/nw sec 31. Forbestown quad. E side of Lumpkin-LaPorte Rd, 1 mi N of Enterprise Bridge over South Fork of the Feather River, ca. 10 air mi E of Oroville. Oepn grassy area surrounded by Woodland; 1500 ft. 457 Comment
  UC176275  Trifolium obtusiflorum A. A. Heller 1913-6-4 10771 Butte n Oroville (Olive Ranch); Table Mtns Comment
  UCSC010673  Trifolium phaeocephalum Lowell Ahart 2015-4-27 20078 Butte 20 yards north of the dirt road, about 5/8 mile northwest of the iron gate along Cherokee Road, Beatson Hollow, North Table Mountain, about 7 miles north of Oroville 304 Comment
  CHSC48586  Trifolium pratense Vernon Oswald 1987-7-13 3101 Butte Chico Meadows, ca. 1 mi n of Butte Meadows. 1292 Comment
  JEPS119757  Trifolium repens Lowell Ahart 2012-5-14 18063 Butte Overflow area on the north edge of Big Chico Creek, west of the bridge and Manzanita Avenue, south of Vallombrosa Avenue, Lower Bidwell Park, Chico. Comment
  JEPS115321  Trifolium retusum Lowell Ahart 2009-5-8 15660 Butte On the south side of the gravel road, about 10 yards east of Cedar Grove Parking Area in Lower Bidwell Park, Chico 67 Comment
  JEPS120957  Trifolium tomentosum Lowell Ahart 2013-4-29 18659 Butte About 50 yards N of the corral at the barn, about 1/4 mile N of the Honcut Cemetery, about 3.25 air miles NE of Honcut, Comment
  SEINET3449328  Trifolium variegatum Unknown 2003-4-15 10102 Butte Oroville, Oroville, about 7 air miles north, North Table Mountain, about 1.25 miles northwest of the iron gate and fence, northwest of Cherokee Road, southwest of drainage entering Beatson Hollow 280 Comment
  CHSC69721  Trifolium variegatum var. geminiflorum Lowell Ahart 1997-10-20 7925 Butte On sand bars, on the west side of the sharp bend in the South Fork of the Feather River, about 1/4 mile north of the bridge across the river, about 3/4 mile north of Golden Trout Crossing, 3 miles (air) northwest of Sly Creek. 914 Comment
  CHSC115295  Trifolium variegatum var. variegatum Lowell Ahart 2015-4-27 20078 Butte On the bottom of the stream, about 20 yards north of the dirt road, about 5/8 mile northwest of the iron gate along Cherokee Road, Beatson Hollow, North Table Mountain, about 7 miles (air) north of Oroville. 304 Comment
  CHSC21257  Trifolium willdenovii M. S. Taylor 1974-4-30 197 Butte On e side of Cohasset Rd, ca. 2.5 mi ne of its junction with Rock Creek Rd. 243 Comment
  CHSC90516  Trifolium willdenovii Lisa R. Perry 1988-3-15 12 Butte Vic. Salmon Hole, ca. 5 mi e of Chico Municipal Golf Course. 121 Comment
  JEPS107761  Trifolium willdenovii Lowell Ahart 2005-5-11 11804 Butte Steep slope on the south side of Beatson Hollow, southwest of drainage entering Beatson Hollow, about 1 1/4 miles northwest of the poor dirt road off of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 280 Comment
  SEINET10452560  Trifolium willdenovii Mary Susan Taylor 1981-5-5 Taylor 3606 Butte T20N R6E se/nw sec 31. Forbestown quad. E side of Lumpkin-LaPorte Rd, 1 mi N of Enterprise Bridge over South Fork of the Feather River, ca. 10 air mi E of Oroville. Oepn grassy area surrounded by Woodland; 1500 ft. 457 Comment
  CHSC30787  Trifolium wormskioldii M. S. Taylor 1978-8-18 1725 Butte On n side of Butte Creek, ca.1 .8 mi w of Road Island Junction, at jct of Butte Creek and Old Humboldt Rd, ca. 1 mi w of Cherry Hill Campground. 1524 Comment
  UC80467  Trifolium wormskioldii T. S. Brandegee 1892-6-28 Butte Jonesville Comment
  UCSB45733  Triglochin scilloides Reisentz, Paul 1979-5-11 Butte 0.7 miles W on Lunt Road from Highway 70; north of Oroville Comment
  CHSC77984  Triodanis biflora Lowell Ahart 2000-5-13 8344 Butte On the margin of the Thermalito Afterbay, on the south side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 42 Comment
  CDA41906  Triphysaria eriantha T. C. Fuller 1958-4-15 s.n. Butte Highway 99E, 10 miles northwest of Chico. 0 Comment
  OBI78370  Triphysaria eriantha Lewis S. Rose 1967-5-6 67054 Butte Oroville 52 Comment
  HSC70518  Triphysaria eriantha subsp. eriantha J. P. Smith 1973-3-22 5927 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  JEPS108866  Triphysaria eriantha subsp. eriantha Lowell Ahart 2006-4-23 12531 Butte About 400 yards north of the cattle chute and parking area on the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 400 Comment
  UC75146  Triphysaria eriantha subsp. eriantha Dr. E. B. Copeland 1903-4-10 3036 Butte Chico Comment
  POM195807  Triphysaria eriantha subsp. eriantha A. A. Heller 1926-3-22 13910 Butte East of Chico near the Hooker Oak, Comment
  CDA41898  Triphysaria versicolor subsp. faucibarbata L. Ahart 2004-4-4 10727 Butte On the north side of Richvale Highway, about 1/2 mile east of Richvale. Comment
  CHSC49589  Trisetum spicatum Vernon Oswald; Lowell Ahart 1987-7-1 3057 Butte Scotts John Rd. 1.3 mi n of the road connecting Humboldt and Humbug Rds, ca. 2.5 mi ene of Jonesville. On the w side of Scotts John Creek. 1828 Comment
  JEPS87164  Trisetum wolfii Lowell Ahart 1992-7-21 6800 Butte ca. 2 (air) mi. n.e. Philbrook Reservoir (near a snow lake on s. side of Coon Hollow); Coon Hollow 1737 Comment
  UC1594582  Trisetum wolfii Lowell Ahart 1992-7-21 6800 Butte ca. 2 (air) mi. n.e. Philbrook Reservoir (near a snow lake on s. side of Coon Hollow); Coon Hollow 1737 Comment
  POM109811  Triteleia bridgesii C. C. Bruce 1897-04 2737 Butte [No locality information provided] Comment
  UC1537202  Triteleia hyacinthina Gordon H. True Jr. 1938-4-10 859 Butte 5 mi w Paradise 304 Comment
  CAS-BOT-BC521616  Triteleia hyacinthina Lewis S. Rose 1933-5-27 33194 Butte Bangor 266 Comment
  HSC32413  Triteleia hyacinthina R. A. Vanbianchi 1974-4-20 218 Butte 300 yds. S of intersection of Pentz and Clark Rds. Comment
  CHSC118506  Triteleia ixioides subsp. scabra L. P. Janeway 2016-5-9 11956 Butte Northern High Sierra Nevada. Plumas National Forest; upper north-facing slope above the South Fork Feather River arm of Lake Ovoville, 0.4 km northwest of the junction of Ponderosa Way and Road 19N19. 701 Comment
  CHSC32595  Triteleia ixioides subsp. scabra J. D. Jokerst; R. A. Schlising 1981-3-22 1264 Butte S of Hwy 162 1.0 mi N of the Bidwell Bar Bridge. Comment
  HSC43095  Triteleia ixioides subsp. scabra Maralyn O'Meara 1974-4-20 299 Butte Table Mtn. 305 Comment
  UC175307  Triteleia ixioides subsp. unifolia A. A. Heller 1913-6-7 10815 Butte near Stirling 1074 Comment
  CHSC11068  Triteleia laxa Lowell Ahart 1965-4-11 Butte Peter Ahart Ranch, Honcut. 42 Comment
  CHSC4207  Triteleia laxa L. R. Alexander 1967-4-8 25 Butte Found 4 mi se of Chico ca. 200 yds. Off the left hand side of Paradise road. 182 Comment
  CHSC56827  Triteleia laxa S. Scott 1981-4-24 Butte 1.4 km e of Manzanita Ave and Centenial Ave intersection on Centenial Ave; ca. 3 km e of Chico. 97 Comment
  HSC32417  Triteleia laxa R. A. Vanbianchi 1974-4-20 221 Butte 300 yds. S of intersection of Pentz and Clark Rds. Comment
  UCD139375  Triteleia laxa L. Ahart 1975-5-12 774 Butte along North Honcut Creek, Peter Ahart Ranch, Honcut. 45 Comment
  SBBG115545  Tuctoria greenei B. Crampton 1960-6-15 5621 Butte ca. 10 mi SE of central Chico Comment
  UCD34286  Tuctoria greenei Beecher Crampton 1978-8-21 9660 Butte Ca. 10 miles SE of Chico, 1/2 mile S of the jct. of Pentz Road and Hwy. 99. Comment
  CAS-BOT-BC73909  Turritis glabra E. B. Copeland 1929-7-29 366 Butte Jonesville. 1550 Comment
  CDA13280  Turritis glabra G. F. Hrusa, T. D. Wilfred 1996-7-9 13128 Butte Plumas National Forest; Above Jordan Creek. ordan Creek headwaters S of Hwy 162 near Roger's Cow Camp. Comment
  SEINET10567551  Typha angustifolia Mary Susan Taylor Taylor 835 Butte Bidwell Park, Chico. Comment
  CHSC2359  Typha domingensis D. Bower 1953-8-3 Butte 3A Llano Seco. Marsh. 30 Comment
  CHSC26458  Ulmus parvifolia Pamela Caldwell 1971-10-20 Butte Front of A.J.H. Bldg. CSUC campus. 60 Comment
  CHSC10694  Umbellularia californica Lowell Ahart 1961-3-3 Butte Salmon Hole, Chico. 91 Comment
  RSA754847  Umbellularia californica L. Ahart 2009-8-20 16286 Butte near rim edge, west edge of the open area west of the Guardian Rock Trail, about 30-100 yards north of Pine Trail, about 3/8 air mile southwest of the intersection of Ten Mile House Road and Highway 32, Upper Bidwell park;, about 10 miles northeast of Chico. 399 Comment
  SEINET12091632  Umbellularia californica Unknown 1977-1 11 Butte ca 4 mi N. of Paradise and 100 yds N of Magalia 732 Comment
  CHSC84077  Uropappus lindleyi Lowell Ahart 2003-5-15 10178 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
  CHSC41909  Vaccinium parvifolium Lowell Ahart 1983-7-29 4221 Butte Along dirt road, 2 miles south of Milsap Bar, about 23 miles north-east of Oroville. 750 Comment
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Feb 8 2016
  CAS-BOT-BC193410  Vaccinium uliginosum H. F. Copeland 1929-6-9 1227 Butte Jonesville 1524 Comment
  CHSC61649  Valeriana californica Lowell Ahart 1993-9-8 7168 Butte On ridge, about 1/2 mile east of Snow Mountain. 2103 Comment
  SEINET10472811  Veratrum californicum Mary Susan Taylor 1977-7-15 Taylor 1409 Butte Butte Meadows, ca. 20 mi NE of Chico off Hwy 32. 1326 Comment
  CHSC113495  Veratrum californicum var. californicum Lowell Ahart 2014-7-16 19691 Butte Along the south edge of a large wet meadow (some bog), about 110 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC112107  Verbascum blattaria Lowell Ahart 2012-6-2 18156 Butte 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. 298 Comment
  JEPS119889  Verbascum blattaria Lowell Ahart 2012-6-5 18156 Butte 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
  CHSC35225  Verbena hastata M. S. Taylor 1977-11-10 1516 Butte Comment
  SEINET10931404  Verbena robusta Lowell Ahart 1985-5-6 Ahart 4937 Butte Bottom of Lindo Channel, about 1/10 mile east of Longfellow Ave., Chico. Comment
  CHSC112348  Veronica arvensis L. P. Janeway 2014-4-9 11222 Butte Northern High Sierra Nevada. Plumas National Forest; along Road 22N12Xwhere it crosses Peavine Creek just below the confluence of Coon Creek; French Creek Basin. 762 Comment
  CHSC115192  Veronica arvensis Lowell Ahart 2015-4-27 20084 Butte On the north side of the dirt road, about 5/8 mile northwest of the iron gate of the dirt road, along Cherokee Road, Beatson Hollow, North Table Mountain, about 7 miles (air) north of Oroville. 304 Comment
  SEINET10547680  Veronica peregrina Mary Susan Taylor 1975-4-26 Taylor 511 Butte Kunkle Reservoir, ca. 500 yds E of Pentz-Magalia Hwy, ca. 1 m SE of Paradise. With Orthocarpus erianthus, Centaurea solstitus, Lupinus bicolor, Typha latifolia. 610 Comment
  CHSC111339  Veronica peregrina subsp. xalapensis Lowell Ahart 2012-5-2 17959 Butte Bottom of a small depression, about 20 yards west of the Horseshoe Lake Dam, Upper Bidwell Park, about 1 1/4 miles east of Chico. 97 Comment
  CHSC11048  Veronica persica Lowell Ahart 1968-2-22 Butte Peter Ahart Ranch. 45 Comment
  SEINET10484172  Vicia Mary Susan Taylor, K. Tharp 1982-4-8 Taylor 4281 A Butte T20N R2E sw/nw sec 1. Shippee quad. SE corner of jct of Hwys 149 & 99, ca. l0 mi s of Chico. 225 ft. Valley Grassland. 68 Comment
  POM29510  Vicia americana var. americana C. C. Bruce 1898-05 2447 Butte [No location information provided.] Comment
  JEPS119749  Vicia sativa subsp. nigra Lowell Ahart 2012-5-17 18080 Butte North of Big Chico Creek, on both sides of the horse trail, east of Table 20, southwest of the southwest corner of the old walnut orchard, about 3/5 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  CHSC100987  Vicia villosa subsp. varia L. P. Janeway 2008-3-18 9240 Butte Cascade Range Foothills. East edge of City of Chico; south side of Humboldt Road 1.4 km northeast of Bruce Road. 126 Comment
  CHSC110128  Vicia villosa subsp. varia L. P. Janeway 2012-3-21 10798 Butte Northern Sierra Nevada Foothills. Near the top of a flattened knoll on east side of Thermalito Diversion Pool between the Pool and the railroad tracks, about 0.4 km north-northeast of the Diversion Dam (Feather River; Oroville). 88 Comment
  CHSC48591  Vicia villosa subsp. varia Vernon Oswald 1987-3-31 2305 Butte Butte Creek Reserve on the s side of Butte Creek n of the Skyway. 85 Comment
  CHSC90012  Vicia villosa subsp. varia Laurie L. Gordon 1991-4-12 8 Butte 3 mi east of Hwy 99, about 250 ft south of Hwy 32. 54 Comment
  UCD109151  Vicia villosa subsp. villosa R. N. Raynor; H. A. Hannesson 1941-5-9 s.n. Butte 4 mi. N. of Gridley. Comment
  CAS-BOT-BC536520  Viola glabella A. A. Heller 1915-6-11 12045 Butte Jonesville in the Sierra Nevada 1676 Comment
  SEINET10480206  Viola lobata Mary Susan Taylor 1978-9-9 Taylor 1919 Butte Along the Skyway in the village of Inskip. 1468 Comment
  UC108618  Viola lobata subsp. lobata D. Cleveland 1882-8-4 Butte West Branch Comment
  CAS-BOT-BC530098  Viola lobata subsp. lobata John Thomas Howell 1955-6-14 30468 Butte near De Sabla Comment
  UC1761896  Viola macloskeyi H. F. Copeland 1929-6-10 1217 Butte Jonesville 1524 Comment
  UCD111158  Viola purpurea H. F. Copeland 1929-6-10 s.n. Butte Jonesville. 1524 Comment
  RSA21535  Viola purpurea subsp. purpurea Carl B. Wolf 1937-5-17 8721 Butte Northern Sierra Nevada. Road from De Sabla to Humboldt Road, 2.2 mi. W. of Big Butte Creek 762 Comment
  POM193367  Viola purpurea subsp. venosa E. B. Copeland 1930-6-24 427 Butte Jonesville. 1500 Comment
  SD3138  Viola purpurea subsp. venosa E. B. Copeland 1930-6-24 427 Butte Jonesville, in low woods 1500 Comment
  CAS-BOT-BC203024  Vitis californica John Thomas Howell 1961-9-22 36751 Butte Feather River Highway 3 miles from Oroville Comment
  SBBG50309  Vitis californica J. T. Howell 1961-9-22 Butte N Fork of Feather River, 10 mi from Oroville Comment
  UCD102780  Vitis californica L. Ahart 1976-5-21 1113 Butte North Honcut Creek, Peter Ahart Ranch, Honcut. 45 Comment
  CHSC32616  Vulpia bromoides J. D. Jokerst 1979-3-23 1163 Butte Top of North Table Mt, E edge of the Mt where the S fork of Coal Cr Canyon ends. 365 Comment
  HSC23408  Vulpia microstachys J. Wheeler 1968-6-19 325 Butte Table Mtn., W side of Cherokee Rd. E of Beatson Hollow. 366 Comment
  CHSC40453  Vulpia microstachys var. ciliata Lowell Ahart 1985-5-15 4969 Butte West of Lunt Road, about 1/2 mile north of the intersection of Lunt Road and Highway 70, north of Yankee Hill. 502 Comment
  CHSC96622  Vulpia microstachys var. ciliata L. P. Janeway 2006-4-30 8566 Butte Cascade Range Foothills. East edge of city of Chico; northwest side of Humboldt Road 2.4 km northeast of Bruce Road. 149 Comment
  UCD18877  Vulpia microstachys var. ciliata Vernal Pool Team 2001; Carol Witham and Jennifer Buck 2001-5-3 185 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
  CAS-BOT-BC184184  Vulpia microstachys var. pauciflora John Thomas Howell 1962-6-16 37561 Butte Magalia 731 Comment
  CHSC31745  Vulpia microstachys var. pauciflora L. Ahart 1972-5-8 100 Butte Bottom of a wash, Peter Ahart Ranch, Honcut. 45 Comment
  CHSC36412  Vulpia microstachys var. pauciflora Donald M. Burk 1982-4-24 123 Butte Along canyon on N. side of Neal Rd., ca. 0.6 mi. W. of Elliott Spring House. 243 Comment
  CHSC50708  Vulpia microstachys var. pauciflora Lowell Ahart 1990-4-28 6472 Butte At the base of steep banks on the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  UCD94547  Vulpia microstachys var. pauciflora John Thomas Howell 1962-6-16 37561 Butte Magalia. 731 Comment
  UCD94767  Vulpia myuros A. A. Heller 1915-5-28 11901 Butte near Cohasset. Sierra foothills. Comment
  CHSC2145  Vulpia myuros var. hirsuta M. Roberson 1956-4-23 Butte SW of Paradise, along Skyway. 426 Comment
  SEINET10604520  Vulpia myuros var. hirsuta A. Arthur Heller 1915-5-28 Heller 11901 Butte Plentiful near Cohasset in red clay in open places in the chaparral, which here is mainly Quercus Oerstediana, with Adenostoma and Toxicodendron. Near the upper limit of the digger pine in the Sierra foothills. Comment
  CAS-BOT-BC178582  Vulpia myuros var. myuros Lowell Ahart 1989-5-23 6265 Butte Along Swedes Flat Road, about 1 mile east of the Oroville Bangor Highway, north of Bangor. 426 Comment
  CHSC45325  Wolffia brasiliensis Vernon Oswald 1988-11-6 3723 Butte Arroyo Grant. Chico Landing Ramp (at Chico Landing Site), Bidwell River Park, slough in an old channel of the Sacramento River w of Chico. 35 Comment
  SD129775  Wolffiella oblonga Vernon H. Oswald 1989-10-18 4026 Butte West end of West Liberty Road, along the north boundary of Gray Lodge Wildlife Area. Common in a man-made pond. 20 Comment
  CHSC30855  Woodwardia fimbriata L. Ahart 1980-9-10 2634 Butte Ca. 3 mi ne of Milsap Bar, ca. 27 mi ne of Oroville. 1100 Comment
  CHSC39831  Woodwardia fimbriata Ruby Gist 1935-5-1 Butte Chico. Comment
  CHSC435  Wyethia angustifolia J. Turner 1930-5-25 Butte River road near Hamilton City road. Comment
  JEPS119800  Wyethia angustifolia Lowell Ahart 2012-5-20 18090 Butte On the east side of the Humboldt Trail, northeast of the Disc Golf Course, southeast part of Upper Bidwell Park, northeast of Chico. Comment
  SEINET191374  X Elyhordeum macounii A. A. Beetle 1941-6-27 2740 Butte 20 miles northeast of Chico Comment
  SEINET13945458 Image available Yabea microcarpa A. A. Heller 1915-1 11865 Butte Hills 12 miles northeast of Chico near Rock creek on a north slope Comment
  CHSC30058  Zeltnera venusta K. R. Stern 1979-5-19 Butte Ca. 200 m W. of Foster Rd., ca. 3 km W. of Paradise. 425 Comment
  SEINET3157070  Zizia cordata A. Kellogg 1869-7-16 sn Butte Oregon City Comment
  CHSC84653  Ziziphus jujuba James Dempsey 2003-5-30 Butte Sacramento Valley. Bidwell-Sacramento River State Park; along Chico River Road beside the Sacramento River, just short of the first bend in the road north of the Big Chico Creek bridge and just south of the Washout. 39 Comment



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