Search Results — 2000 specimen records retrieved (1617 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC818137  Abies concolor A. A. Heller 1917-7-26 12849 Butte Butte Meadows Comment
  CHSC109781  Abutilon theophrasti Lowell Ahart 2012-10-20 18485 Butte On the north side of the sidewalk, about 50 yards west of the intersection of Chico Canyon Road (E 8th Street) and Forest Avenue, Lower Bidwell Park, Chico. 73 Comment
  CHSC29103  Acer circinatum M. S. Taylor; J. D. Jokerst 1980-4-27 2557 Butte Along Middle Butte Creek off of Little Butte Creek in Riparian Woodland, very shady, ca. 1 1/2 mi se of Nimshew. 609 Comment
  UC600814  Acer glabrum var. glabrum H. F. Copeland 1929-6-11 Butte near Butte Creek (Jonesville); near Butte Creek, Jonesville 1524 Comment
  SFV16943  Acer macrophyllum J. N. Hogue 1980-9-6 83 2 Butte Sierra Nevada Toadtown, 4 miles west of Stirling City, along Little Butte Creek. 915 Comment
  SEINET10453992  Acer macrophyllum Mary Susan Taylor 1975-9-19 Taylor 915 Butte Ca. 0.5 mi N of Magalia, ca. 50 ft E of Skyway; serpentine area surrounded by Yellow Pine Forest. 610 Comment
  CHSC27267  Acer negundo var. californicum P. Moyer 1972-4-9 160 Butte CSUC campus. S bank Chico Ck., w of Warner St. Bridge 60 Comment
  CHSC20504  Acer saccharinum M. S. Taylor 1975-5-6 555 Butte Ca. 100 ft e of Little Cafeteria, on s side of Big Chico Creek, California State University, Chico. 60 Comment
  SEINET10473513  Achillea lanulosa Mary Susan Taylor 1975-8-31 Taylor 889 Butte Riparian Woodland, on Ernies Island in Butte Creek, ca. 50 ft S of Humboldt Rd, ca. 0.5 mi E of Butte Meadows. 1341 Comment
  JEPS108565  Achnatherum lemmonii L. P. Janeway 2005-5-29 8415 Butte Northern High Sierra Nevada. Top of Rocky Ridge towards its southern end; 2.9 km southwest of Pulga 960 Comment
  CHSC49579  Achnatherum occidentale subsp. californicum Vernon Oswald 1985-7-2 1873 Butte Hwy 32 2.3 mi s of Lomo. 1133 Comment
  CAS-BOT-BC218048  Achnatherum stillmanii Lowell Ahart 1981-7-7 2934 Butte Along dirt road to the Forbestown Res., 3 miles NE of Forbestown 800 Comment
  CHSC33954  Achnatherum stillmanii M. S. Taylor; L. Ahart 1981-8-15 4178 Butte Both sides of Skyway, 1.8 mi s of Inskip. 1249 Comment
  CHSC92276  Achnatherum stillmanii L. P. Janeway; B. Castro 2005-8-3 8517 Butte Northern High Sierra Nevada. Plumas National Forest; southerly-facing forested slope between Flea Mountain and Dogwood Creek, 1.3 km northeast of top of Flea Mountain. 1122 Comment
  SEINET11839699  Achyrachaena mollis D. K. Parker 1981-1 17 Butte Large population, ca 5 m W Hwy 99, 8.5 km N of Chico 65 Comment
  SEINET11842154  Achyrachaena mollis K. R. Fechko 1982-1 19 Butte ca 2.5 mi S of Tehama Co. line, E side of Meridian Rd. ca 1.5 mi N of junction with Hwy 99;.. 91 Comment
  CHSC25542  Acmispon americanus var. americanus Robert A. Schlising 1977-7-20 3196 Butte Just north of Magalia, along Coutelenc Road. In rocks along railroad tracks. 670 Comment
  JEPS119604  Acmispon brachycarpus Lowell Ahart 2012-4-9 17845 Butte About 5 yards west of South Rim Trail, south part of Upper Bidwell Park, about 2 1/2 miles (air) northeast of Chico. Comment
  SD48505  Acmispon grandiflorus var. grandiflorus E. K. Balls 1957-5-22 22513 Butte North fork Feather River, above Camp Rogers, on trail to Buck's Lake. 655 Comment
  CHSC74088  Acmispon grandiflorus var. macranthus B. Castro; E. Hubert 1996-7-16 683 Butte BlackJack Fire. Ca 5 air mi N of Brush Creek, ca 0.4 mi S of Rogers Cow Camp on SE-facing slope of recently burned area. 1188 Comment
  CHSC33123  Acmispon nevadensis M. S. Taylor 1981-5-15 3748 Butte Edge of landing at short spur rd off Chino Ridge Rd (22N28) near Last Cahnce Creek, ca. 4 air mi due e of Jarbo Gap on Feather River Hwy 70. 853 Comment
  CHSC98946  Acmispon nevadensis var. nevadensis Lowell Ahart 2008-5-8 14716 Butte Below the high water line of Lake Oroville, about 250 yards south of the poor parking area, on the east side of McCabe Creek, about 3/4 mile southwest of the Enterprise Bridge, about 11 miles (air) east of Oroville. 259 Comment
  CHSC99327  Acmispon nevadensis var. nevadensis Lowell Ahart 2008-5-12 14729 Butte Below the high water line of Lake Oroville, on the east side of Sucker Creek, about 40 yards east of where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile west of the Ponderosa Dam. 258 Comment
  CHSC40418  Acmispon strigosus Lowell Ahart 1985-5-31 5034 Butte About 25 feet below the high water line of Lake Oroville, 1/8 mile east of the Enterprise Launch Area, about 1/2 mile west of the Enterprise Bridge across Lake Oroville, north-east of Oroville. 274 Comment
  CHSC3274  Adiantum aleuticum M. L. Hillier 1966-3-7 Butte On s. side of rd. between Honeyrun covered bridge and Paradise on Honeyrun rd. Comment
  SEINET3868326 Image available Adiantum jordanii M. S. Taylor 1980-3-1 2340 Butte On north facing bluffs looking into Nance Canyon, ca. 1/4 mi N of Neal Rd, ca. 3 mi e of its jct with Hwy 99, ca. 7 mi s of Chico.; 0 122 Comment
  CHSC30288  Aegilops triuncialis M. S. Taylor 1980-5-24 2740 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC31739  Aegilops triuncialis L. Ahart 1976-5-2 1089 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC81522  Aesculus californica Petra M. Lee 2000-4-30 Butte Chico. 1 mile NE of Horseshoe Lake in Upper Bidwell Park. About 200 yards from Chico Creek. 91 Comment
  CHSC6008  Aesculus carnea M. MacArthur 1968-6-19 259 Butte Chico State College. At main entrance to Auditorium. 60 Comment
  CHSC44366  Agoseris grandiflora Lowell Ahart 1988-6-21 6054 Butte Along Poe Power House Road, about 3/4 mile north of the Poe Power House, about 1 1/4 miles south-east of Jarbo Gap. 426 Comment
  JEPS115882  Agoseris grandiflora Lowell Ahart 2009-6-19 15918 Butte On dry soil, on the north side of Ten Mile House Road, Upper Bidwell Park, about 3/8 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 379 Comment
  CHSC37259  Agoseris heterophylla Lowell Ahart 1982-6-15 3577 Butte 1.5 mi E of Camp 18, ca. 8 mi E of Feather Falls. 1000 Comment
  JEPS93835  Agoseris heterophylla Lowell Ahart 1998-7-1 8024 Butte about 7 air mi n of Oroville (about 1/2 mi n of the cow chute along Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 403 Comment
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Jan 19 2011
  SEINET3450923  Agoseris heterophylla Unknown 2003-4-10 10053 Butte Oroville, Oroville, about 2.5 air miles north, near the east side of the 'sunken area', about 150 yrd west of the east rim of the South Table Mountain 320 Comment
  CHSC25052  Agoseris heterophylla var. cryptopleura G. N. Steger 1972-4-15 Butte Along top of N Table Mt., 4 mi S of Cherokee on Cherokee rd and 100-200 yds W of Cherokee rd. 396 Comment
Read comments
Jan 19 2011
  UC726518  Agoseris retrorsa A. A. Heller 1919-5-18 13169 Butte Stirling 1074 Comment
  POM32928  Agoseris retrorsa C. C. Bruce 1897-04 s.n. Butte Cherokee grade. Comment
  SEINET10964049  Agropyron elongatum Lowell Ahart 1982-7-10 Ahart 3678 Butte On dry soil near dirt Rd, ca. 1/4 mile NE of HQ, Graylodge Wildlife Refuge, ca. 12 miles SW of Gridley. 35 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
  CHSC27289  Agrostis capillaris P. Moyer 1972-4-27 228 Butte CSUC campus. In front of Physical Sci. Bldg. 60 Comment
  CHSC102426  Agrostis exarata Lowell Ahart 2009-7-9 16025 Butte On dry sandy soil, on the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 203 Comment
  CAS-BOT-BC139720  Agrostis gigantea Lowell Ahart 1985-11-7 5235 Butte Below the high water line of Lake Oroville, on the bottom of the South Fork of the Feather River, about 300 yards northwest of the Ponderosa Dam. 277 Comment
  CAS-BOT-BC139438  Agrostis hyemalis A. A. Heller 1917-7-26 12847 Butte Butte Meadows. 1280 Comment
  CHSC93479  Agrostis microphylla Lowell Ahart 2006-5-3 12560 Butte On the west side of a small stream, about 50 yards south of the fence, about 1 mile northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 378 Comment
  CHSC70825  Agrostis pallens B. Castro; H. Durio, L. Gehrung 1995-7-24 588 Butte Ca 1.5 air mi S of Hungry Hunt Peak, and 1.5 mi E of Hwy 70, ca 0.2 mi S on 'A' Spur off USFS Rd 22N84. 914 Comment
  UC573807  Agrostis scabra H. S. Yates 1936-8-13 6099 Butte Butte Meadow Paynes Creek Quad. 1341 Comment
  CHSC25442  Agrostis stolonifera Hayes; Warner 1977-9-11 83 Butte Along roadside, between Jonesville and Butte Meadows (Humboldt Rd.), exactly 11.1 mi from the junction with Hwy 32. 1219 Comment
  RSA716149  Agrostis stolonifera L. Ahart 2005-7-13 12150 Butte About 20 yards east of the intersection of Forbestown road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown, about 12 miles (air) east of Oroville. 759 Comment
  SEINET10510739  Agrostis tenuis Lowell Ahart 1988-9-4 Ahart 6179 Butte On damp rocky soil, on the bottom and sides of Big Kimshew Creek, the creek crosses a large meadow. about 1 air mile north-east of Jones Meadow. Uncommon. Mountain meadow in Red Fir Forest. Comment
  CHSC43175  Agrostis variabilis Robert Banchero 1981-7-18 600 Butte Butte Creek House, ca 3 air miles ne of Jonesville. 1755 Comment
  SEINET10790429  Agrostis variabilis A. Arthur Heller 1914-8-7 Heller 11660 Butte Summit end of Jonesville on a north slope where snow lies until midsummer. Collected in Yellowstone Park. 2134 Comment
  CHSC42064  Alisma triviale Lowell Ahart 1986-11-9 5449 Butte On the bottom of a pond, about 1/10 mile south of the clay burrow for Oroville Dam, 1/4 mile east of Larkin Road, about 6 miles south-west of Oroville. 36 Comment
  UCD137959  Alisma triviale L. Ahart 1975-7-5 853 Butte North Honcut Creek, Peter Ahart Ranch, Honcut. 45 Comment
  CHSC116575  Allium amplectens B. Castro; Robin Carter 2016-3-30 2127 Butte Sacramento Valley. CA1.6 air mi E of Hwy 99, 2 mi S of Hwy 162E and 1.5 mi SSW of the Oroville Airport, off N edge of SE ortion of the Thermalito Afterbay, near S end of old Wilbur Road. 44 Comment
  CHSC36907  Allium amplectens R. A. Schlising 1980-7-25 3920 Butte N part of county near Lomo, 1.9 m ne of jct Hwy. 32 with Humboldt Road. Carpenter Ridge. Comment
  CHSC40626  Allium amplectens J. D. Jokerst; M. S. Taylor, L. Ahart 1984-4-6 1960 Butte N of Kunkle Reservoir ca 200 m sw of Lago Vista Rd. Comment
  POM169472  Allium amplectens E. B. Copeland 1903-5-2 2871 Butte Chico Comment
  UC1377794  Allium amplectens John Ingram and Arlynn Ingram 1960-4-6 299 Butte about 6 mi s Paradise (on Neal Road) Comment
  UCSC000150  Allium amplectens Kate Conger 1907-1 s.n. Butte Brush Creek Comment
  CAS-BOT-BC460740  Allium amplectens A. A. Heller; H. E. Brown 1902-5-7 5480 Butte Berry Canyon (Near Clear Creek) Comment
  CDA39428  Allium amplectens L. L. Heinricks 1974-5-2 s.n. Butte On both sides of Wilbur Road. 0 Comment
  JEPS85594  Allium amplectens Roger Raiche 1983-4-12 30184 Butte Rt. 32 ne Chico (plateau ridge between Big Chico Creek and Little Chico Creek) 609 Comment
  SEINET12048523  Allium amplectens P. K. Kirk 1981-1 20 Butte E side of Hwy 99 and 30 m S of its jct with Broyles Rd., 17.6 km N of Chico 60 Comment
  UC843256  Allium campanulatum A. A. Heller 1917-7-29 12865 Butte summit above Jonesville 2133 Comment
  CAS-BOT-BC465445  Allium campanulatum A. A. Heller 1917-7-29 12865 Butte Summit above Jonesville 2133 Comment
  CAS-BOT-BC466713  Allium cratericola Elizabeth McClintock 1965-4-4 s.n. Butte Table Mountain east of Chico Comment
  CHSC62602  Allium jepsonii B. Castro 1993-8-5 492 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
  CHSC29839  Allium membranaceum K. R. Stern 1980-6-17 6659 Butte Nimshew. 716 Comment
  CHSC20258  Allium peninsulare E. L. McNichols 1972-4-6 Butte Collected at Devil's Kitchen, Bidwell Park. Comment
  SBBG17065  Allium peninsulare M. Vincent 1962-4-15 193 Butte Skyway, 4 mi W of Paradise, overlooking Butte Crk Cyn Comment
  CAS-BOT-BC132077  Allium peninsulare var. peninsulare Lowell Ahart 1985-5-15 5003 Butte 1/8 mile east of the dirt road, about 1 1/2 miles north-east of Concow Res. 800 Comment
  POM193389  Allium validum E. B. Copeland 1930-7-21 407 Butte Jonesville. 1500 Comment
  CHSC26879  Allophyllum integrifolium E. B. Copeland 1929-7-29 393 Butte Jonesville. 1625 Comment
  CHSC35102  Allophyllum integrifolium R. Schlising; R. Banchero 1980-7-31 3944 Butte N end of Snag Lake. 1725 Comment
  UC600663  Allophyllum integrifolium E. B. Copeland 1931-6-29 Butte along Butte Creek Jonesville; , Butte Creek 1500 Comment
  CHSC102996  Alnus rhombifolia Lowell Ahart 2009-8-23 16298 Butte On the east side of Big Chico Creek, southwest of the meadow, about 30 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 209 Comment
  CAS-BOT-BC138039  Alopecurus carolinianus Lowell Ahart 1977-6-2 s.n. Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC47601  Alopecurus carolinianus Lowell Ahart 1974-4-28 442 Butte Peter Ahart Ranch, about 2 miles north and 1/2 east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC84273  Alopecurus saccatus Lowell Ahart 2003-5-28 10235 Butte On the bottom of Hendricks ditch, about 1 3/4 miles west of the iron gate and fence, west of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 271 Comment
  CHSC31519  Amaranthus albus L. Ahart 1974-6-3 471 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC50984  Amaranthus californicus Lowell Ahart 1990-8-15 6593 Butte About 1/4 mile north-west of the Enterprise Bridge across Lake Oroville, east of the Enterprise Boat Launch Area, along a small wash, below the high water line of Lake Oroville. 228 Comment
  CHSC51346  Amaranthus californicus Vernon Oswald 1990-9-27 4454 Butte Paradise Lake, ca. 3 mi north of Magalia. 772 Comment
  JEPS117527  Ambrosia psilostachya Lowell Ahart 2010-9-13 17152 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
  UCR66526  Amelanchier alnifolia H. F. Copeland 1929-6-10 1208 Butte Northern Sierra Nevada Mtns., Jonesville 1524 Comment
  SEINET10906932  Ammannia auriculata Mary Susan Taylor 1978-9-8 Taylor 1889 Butte Along flood control slough, ca. 4 mi N of Chico, along Hwy 99. 61 Comment
  CHSC84015  Ammannia coccinea Lowell Ahart 2003-6-23 10300 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
  RSA0090972  Amsinckia A. A. Heller 1941-4-19 16069 Butte Crest of the hills west of Willows. Comment
  CHSC90590  Amsinckia intermedia Tyler Williams 1984-3-12 3 Butte Ca. 500 yd n of Parking Area 'Q' on Upper Park Rd., in Upper Bidwell Park. 304 Comment
  CHSC60659  Amsinckia lycopsoides Vernon H. Oswald 1993-4-11 5254 Butte Cana-Pine Creek Rd. bordering the W side of the Wurlitzer Unit of Vina Plains Preserve, near the NW corner of Butte County. 57 Comment
  UC726540  Amsinckia lycopsoides A. A. Heller 1942-4-5 16419 Butte just n Artois Comment
  CHSC116707  Anagallis minima Lowell Ahart 2016-5-15 20832 Butte On the very west edge 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. 45 Comment
  CHSC67154  Ancistrocarphus filagineus James D. Jokerst 1992-4-14 3345 Butte Stone Ridge Ranch survey for Heritage Partners and landowner Jon Bechtel. E of Cohasset Hwy. and Chico Municipal Airport. 91 Comment
  CHSC262  Anthemis cotula B. Richardson 1929-5-25 Butte Chico. Comment
  RSA791504  Anthriscus caucalis George K. Helmkamp, E. Helmkamp 2012-4-14 18765 Butte Northwestern Sacramento Valley: entrance to Oroville Wildlife Area, 0.2 mile west of CA-70, near the Feather River 46 Comment
  CHSC48969  Antirrhinum cornutum Vernon Oswald 1986-7-22 2216 Butte Hwy 32, 1.2 mi n of Chico Creek near the spring. 1097 Comment
  CHSC25351  Antirrhinum vexillo-calyculatum subsp. intermedium M. P. Hayes 1977-8-10 26 Butte 100 m from the intersection of Pulga Rd. and Highway 70, along Pulga Road. 426 Comment
  CHSC28500  Antirrhinum vexillo-calyculatum subsp. intermedium M. S. Taylor 1979-7-22 2169 Butte Pulga bridge, on n side of trail leading from ne side of Pulga bridge over Hwy 70, ca. 27 mi n of Oroville. 487 Comment
  CHSC38681  Antirrhinum vexillo-calyculatum subsp. intermedium Vernon Oswald 1983-6-9 660 Butte Upper Bidwell Park, Chico, ca. 100 ft n of Upper Park Rd. and 2.4 mi e of the power lines. 256 Comment
  CHSC39235  Antirrhinum vexillo-calyculatum subsp. intermedium M. S. Taylor; L. Ahart, J. Jokerst 1982-1-17 5217 Butte Vicinity of mouth of Flag Canyon. On top pf North Table Mt., ca. 8 mi n of Oroville. 373 Comment
  CHSC117333  Antirrhinum vexillocalyculatum subsp. intermedium L. P. Janeway 2016-8-8 12142 Butte Northern High Sierra Nevada. Plumas National Forest; about 300 m south of Road 22N27 (Lumpkin Ridge Road) at the southern end of Lumpkin Ridge. 1282 Comment
  JEPS124024  Antirrhinum vexillocalyculatum subsp. intermedium Lowell Ahart 2015-6-16 20243 Butte About 2 miles east of the intersection of Lumpkin Ridge Road, County Road and road to Fall River, about 6 3/4 miles (air) northeast of Feather Falls. Comment
  CHSC114984  Aphyllon purpureum Lowell Ahart 2015-4-18 20056 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) eastof Oroville. 752 Comment
  CHSC33372  Aphyllon purpureum Steven Azevedo 1980-4-16 16 Butte S edge of Mudd Creek, 1 mi e of Richardson Spring. 243 Comment
  CHSC42440  Aphyllon purpureum Lowell Ahart 1987-5-12 5647 Butte South of Lumpkin Ridge Road, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 1280 Comment
  CHSC104  Apocynum androsaemifolium 1954-5-30 Butte Kimshew Falls near Rag Dump 5, out from Stirling. 1097 Comment
  RSA726810  Apocynum androsaemifolium L. Ahart 2007-5-29 13949 Butte On the south side of the Dome Trail, trail leads to the Middle Fork of the Feather River, at the trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Big Bald Rock, about 16 miles (air) northeast of Oroville. 844 Comment
  CHSC55470  Apocynum cannabinum L. P. Janeway 1991-6-8 3997 Butte Crest between Montgomery Bar Ravine, Oregon Gulch and the head of Spring Hollow. 411 Comment
  CHSC52457  Aquilegia formosa var. truncata Kirsten Tarp 1982-7-16 207 Butte Crane Valley; streamlike on rocks, in opening of Fir Forest. 1560 Comment
  CHSC48312  Arabidopsis thaliana Vernon Oswald 1985-4-5 1702 Butte Cohasset Hwy at Cohasset Springs. On the slope above the horse trough. 286 Comment
  POM196111  Arabis rectissima E. B. Copeland 1929-7-14 367 Butte Jonesville. 1550 Comment
  JEPS124173  Arbutus menziesii Lowell Ahart 2015-3-14 19948 Butte Beastson Hollow, about 3/5 of a mile northwest of Cherokee Road, about 7 miles (air) north 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
  SEINET10492815  Arceuthobium abietinum Mary Susan Taylor 1977-8-17 Taylor 1486 Butte Scattered in Red Fir Forest, at Humboldt Summit at Butte-Tehama County line, ca. 50-100 ft W of Old Humboldt Rd on Butte County side; with Arctostaphylos neva densis, Hackelia californica. 2134 Comment
  CAS-BOT-BC409924  Arceuthobium campylopodum Lowell Ahart 1987-9-18 5886 Butte about 1 mile SW of the crossing across Fall River, about 1 mile NE of Camp 18, NE of Feather Falls 1310 Comment
  UCD52162  Arctostaphylos manzanita John Thomas Howell 1975-6-15 51103 Butte In Upper Sonoran Zone on volcanic rock; about 2 miles from Paradise on 'Skyway' to Chico. 396 Comment
  UCD52243  Arctostaphylos manzanita John Thomas Howell 1976-4-2 51563 Butte In Upper Sonoran Life Zone on volcanic rock; about 2 miles from Paradise on 'Skyway' to Chico. 396 Comment
  SEINET10841467  Arctostaphylos manzanita Mary Susan Taylor, E. Pierce 1981-1-29 Taylor 3374 Butte Both sides of Cohasset Hwy, ca. 3 mi s of Cohasset. Chaparral. Comment
  CAS-BOT-BC38872  Arctostaphylos manzanita subsp. manzanita A. A. Heller 1940-2-19 15500 Butte Neal Road 3 miles west of paradise near the upper limit of the Upper sonoran Life Zone. Comment
  RSA122404  Arctostaphylos manzanita subsp. manzanita J. E. Sowder 1933-11-27 134 Butte 2 mi. N. 1/4 mi. E. of Hog Spring. 335 Comment
  CHSC107587  Arctostaphylos mewukka subsp. mewukka Lowell Ahart 2011-7-9 17566 Butte Near a large open area, about 1/4 mile east of Little Bald Rock, about 2 miles (air) southeast of Brush creek, about 15 miles (air) northeast of Oroville. 975 Comment
  JEPS120006  Arctostaphylos mewukka subsp. mewukka Lowell Ahart 2012-4-30 17941 Butte On the north side of Guardian Trail about 200 yards west of Pine Trail, about 1/4 mile west of Highway 32, about 8 1/2 miles northeast of Chico, south part of Upper Bidwell Park. Comment
  CAS-BOT-BC38554  Arctostaphylos mewukka subsp. truei John Thomas Howell 1976-7-14 51817 Butte Just NE of Pulga Bridge. 417 Comment
  CHSC44639  Arctostaphylos mewukka subsp. truei J. D. Jokerst 1984-8-15 2146 Butte First ridgeline east of and paralleling Camp Cr. in the canyon of the North Fork Feather River. Comment
  SD3596  Arctostaphylos nevadensis E. B. Copeland 1931-6-22 Butte Jonesville, on ridge E of the Summit. 2100 Comment
  SD3597  Arctostaphylos nevadensis E. B. Copeland 1931-6-22 Butte Jonesville, on ridge east of the Summit. 2100 Comment
  SEINET5539344  Arctostaphylos patula H. S. Gentry, S. Koch 1962-1 19765 Butte 3-4 mi. NW of Cohasset. 1066 Comment
  UC535024  Arctostaphylos patula H. F. Copeland 1932-6-29 A 7 Butte The Summit Jonesville Comment
  SEINET10449252  Arctostaphylos patula Mary Susan Taylor 1981-5-21 Taylor 3780 Butte T23N R5E nw sec 18, Pulga SW quad. E side of Rd 23N02, ca. 2 mi E of Rag Dump, ca. 6 air mi ne of Magalia. Yellow Pine Forest, on granite soils; 3900 ft. 1189 Comment
  CAS-BOT-BC44589  Arctostaphylos viscida subsp. mariposa Jeanne McFarland; Kathie Meyer; Anne Mullenniex 1995-4-9 35 Butte 2 mi. N of Paradise off Skyway Blvd., 0.2 mi. N on Coutolene Rd. 701 Comment
  CAS-BOT-BC47370  Arctostaphylos viscida subsp. viscida John Thomas Howell 1975-6-15 51104 Butte about 2 miles from Paradise on Skyway to Chico 396 Comment
  CAS-BOT-BC47383  Arctostaphylos viscida subsp. viscida John Thomas Howell 1975-6-15 51099 Butte about 2 miles from Paradise on Skyway to Chico 396 Comment
  CAS-BOT-BC47387  Arctostaphylos viscida subsp. viscida John Thomas Howell 1975-6-15 51089 Butte about 2 miles from Paradise on Skyway to Chico 396 Comment
  CAS-BOT-BC47389  Arctostaphylos viscida subsp. viscida Walter Knight; Irja Knight; Tiffany Knight 1988-7-24 6302 Butte Paradise at Berkshire Way and Bille Road just off The Skyway. Next to a bike trail. 274 Comment
  CHSC31693  Arctostaphylos viscida subsp. viscida L. Ahart 1976-2-15 1009 Butte Ahart Ranch. Along North Honcut Creek on dry rocky soil. Peter Ahart Ranch, Honcut. 53 Comment
  CHSC37649  Arctostaphylos viscida subsp. viscida T. B. Devine 1981-8-25 750 Butte Along Durham-Pentz Road, at its junction with Pentz-Magalia Hwy. 205 Comment
  CHSC42015  Arctostaphylos viscida subsp. viscida Lowell Ahart 1976-2-19 1011 Butte Near Ponderosa Way, about 3 mi south of the Ponderosa Dam on the South Fork of the Feather River, about 3 mi northwest of Forbestown. 609 Comment
  CHSC76339  Arenaria kingii var. glabrescens L. P. Janeway; B. Castro 1999-8-1 6512 Butte 0.3 mi north of the top of Snow Mountain, 0.5 mi southwest of Summit Lake. North-facing flank of Snow Mountain. 2017 Comment
  JEPS104594  Aristida dichotoma Lowell Ahart 2003-7-30 10461 Butte On the n side of Bean Creek Rd, ca 1/2 mi se of Little Bald Rock, ca 2 1/2 mi (air) se of Brush Creek. 1000 Comment
  JEPS98293  Aristida dichotoma Lowell Ahart 2000-6-27 8519 Butte Big Bald Rock, about 3 miles (air) east of Madrone Lake, about 12 miles (air) northeast of Oroville. 993 Comment
  JEPS98687  Aristida dichotoma Lowell Ahart 2000-8-5 8624 Butte Above seeps on bare granite, on the north side of Bean Creek Road, about 1/4 mile southeast of Little Bald Rock, about 4 miles (air) northeast of Madrone Lake, about 13 miles (air) northeast of Oroville. 1066 Comment
  CAS-BOT-BC137557  Aristida oligantha John Thomas Howell 1961-9-22 36762 Butte Sierra Nevada. North Fork of Feather River, 10 miles from Oroville. Comment
  RSA718156  Aristida oligantha L. Ahart 2006-10-13 13504 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 1/8 miles east of Honcut, about 12 miles southeast of Oroville. 34 Comment
  SEINET11686323  Aristida ternipes var. gentilis Unknown 1983-1 4277 Butte along Hwy 32, ca 1 mi E of Chico 100 Comment
  CHSC49508  Aristida ternipes var. hamulosa Vernon Oswald 1985-6-10 1826 Butte Hwy 32 3.1 mi e of Hwy 99. 164 Comment
  UC1499976  Aristida ternipes var. hamulosa Lowell Ahart 1983-8-16 4277 Butte along edge of Hwy 32 about 1 mi e Chico 100 Comment
  CHSC27946  Aristolochia californica M. S. Taylor 1979-3-20 1951 Butte Ca. 1 mi n of jct of north fork Feather River and Hwy 70 along an old road, ca. 10 mi n of Oroville. 304 Comment
  SFV8401  Aristolochia californica K. L. McElroy 1968-4-13 37 Butte Table Mountain. 244 Comment
  UC143064  Aristolochia californica Dr. E. B. Copeland 1903-4-10 3044 Butte Chico Comment
  SEINET12090193  Aristolochia californica R. J. Goedl 1979-1 3 Butte 6 mi N of Oroville, 60 yds W of Cherokee Mountain Road 366 Comment
  UC177602  Arnica dealbata H. M. Hall July 1914 9814 Butte near Jonesville (n Butte County); Sierra Nevada Mountains 1615 Comment
  UC398949  Arnica dealbata E. B. Copeland 1929-7-18 399 Butte Jonesville 1550 Comment
  CHSC50399  Arnica latifolia Vernon Oswald; Lowell Ahart 1990-6-27 4333 Butte Rd 23N31 about 1.4 mi (odometer) northwest of Four Trees Rd, between Four Trees and Coyote Gap. 1475 Comment
  CHSC34052  Arrhenatherum elatius L. Ahart; M. S. Taylor 1981-8-15 3050 Butte Ca. 200 m w of the store at the e end of Philbrook Reservoir, ca. 10 mi ne of Inskip. 1500 Comment
  JEPS110297  Artemisia douglasiana Lowell Ahart 2006-9-11 13273 Butte Gravel bar, south side of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville 431 Comment
  UCR219096  Artemisia douglasiana George K. Helmkamp, E. A. Helmkamp 2009-9-5 15573 Butte Sacramento Valley, Lower Honcut Road, 0.8 mile east of its junction with CA-70, 2.5 mi. WSW (261 deg. ) of Honcut, 6.6 mi. SE (116 deg. ) of Gridley 27 Comment
  CAS-BOT-BC90288  Artemisia douglasiana A. A. Heller 1916-9-23 12661 Butte near Forest Ranch Comment
  CAS-BOT-BC400630  Asarum hartwegii Mrs. Eva Pattee 1923-5-15 s.n. Butte Shady Rest near Cresta Comment
  CHSC101158  Asclepias cordifolia Lowell Ahart 2009-5-15 15672 Butte About 80 yards west of the dirt road which isTen Mile House Road, Upper Bidwell Park, about 2/3 mile (air) west of Highway 32, about 10 miles northeast of Chico. 271 Comment
  RSA401660B  Asclepias cordifolia M. Vincent 1962-4-19 212 Butte Humbug Road, 3 miles northeast of Centerville Comment
  CHSC28626  Aspidotis densa M. S. Taylor 1979-3-19 1926 Butte In vicinity of Pulga bridge over Hwy 70 over Feather River, ca. 25 mi ne of Oroville. 487 Comment
  CHSC96826  Aspidotis densa Lowell Ahart 2007-5-29 13966 Butte On the east side of Bald Rock Dome, Dome Trail at the Middle Fork of the Feather River, about 2 miles by the trail from the trail head which is 3/10 mile east of Bean Creek Road, about 2 1/2 miles (air) northeast of Big Bald Rock, about 16 1/2 miles (air) northeast of Oroville. 608 Comment
  RSA726560  Aster chilensis var. chilensis L. Ahart 2007-10-30 14507 Butte About 2.5 miles (air) northeast of Palermo, about 4.25 miles (air) southeast of Oroville. 130 Comment
  SEINET10474436  Aster oregonensis subsp. californicus Lowell Ahart 1985-8-15 Ahart 5165 Butte In an area where serpentine is covered with shallow red rocky soil, 50 yards south of the road to the Forbestown, Res., about 2 1/2 miles north-east of Forbestown. Comment
  SEINET10474437  Aster oregonensis subsp. californicus Mary Susan Taylor 1982-8-16 Taylor 4984 Butte T23N R3E sw/sw sec 30. Paradise E quad. In Mixed Evergreen Forest; on edge of serpentine outcrop, just s of old RR Xing over Coutelenc Rd, at the Skyway, Magalia. 2400 ft. Comment
  POM55207  Aster radulinus Kate Conger 1907-1 150 Butte Brush Creek. Comment
  HSC93425  Astragalus gambelianus L. Ahart 1995-5-30 7577 Butte N Table Mtn., about 7 mi. N of Oroville, about 2 mi. NW of Cherokee Rd., 1/10 mi. SE of the reservoir. 305 Comment
  CAS-BOT-BC192802  Astragalus pauperculus Mrs. J. H. Morrison 1932-3-13 s.n. Butte Durham Comment
  CHSC31961  Astragalus pauperculus J. D. Jokerst 1979-5-2 1219 Butte Top of North Table Mt., ca. 200 meters S of Cherokee Rd. 396 Comment
  UC399384  Athyrium filix-femina var. cyclosorum Mrs. R. M. Austin July 1896 811 Butte Colby Comment
  UC399389  Athyrium filix-femina var. cyclosorum Mrs. Carlotta C. Hall July 1914 9801 Butte Jonesville Comment
  CAS-BOT-BC172672  Atriplex lentiformis Lowell Ahart 1987-10-22 5925 Butte About 150 yards west of the north entrance to the Oroville Wildlife Refuge, west of Pacific Heights Road, about 5 miles south-west of Oroville 38 Comment
  CHSC34049  Atriplex rosea L. Ahart 1981-7-26 3006 Butte On the sides of a large deep ditch near the dirt rd, 1/10 mi w of Pennington Rd on the dirt rd, 1/10 mi w of Pennington Rd on the dirt rd that leads to the Gray Lodge Waterfowl Mgmt HQ, ca. 12 mi sw of Gridley. 35 Comment
  CHSC26655  Atriplex triangularis M. S. Taylor 1977-11-10 1524 Butte Ca. 1 mi e of jct of Nelson West Rd and Chico-Butte Hwy, on n side of Nelson West Rd in drying creek, ca. 23 mi s of Chico. 30 Comment
  CHSC46432  Avena barbata Lowell Ahart 1989-5-10 6216 Butte Near Lake Oroville, about 1/10 mile north-west of the West Branch Bridge across Lake Oroville. 289 Comment
  SEINET10901943  Avena barbata Mary Susan Taylor 1980-3-1 Taylor 2327 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
  JEPS122266  Azolla filiculoides Lowell Ahart 2014-4-9 19338 Butte West end of Liberty Road, about one mile (air) south of Colusa Highway, about 7 miles (air) southwest of Gridley. Comment
  CHSC117705  Azolla microphylla Lowell Ahart 2016-9-4 21342 Butte Rice field. Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles (air) south of Oroville. 30 Comment
  JEPS120948  Azolla microphylla Lowell Ahart 2013-4-20 18550 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
  JEPS87563  Baccharis pilularis Lowell Ahart 1994-10-9 7556 Butte about 3 air mi w of Forbestown (on n side of Forbestown Road, about 200 yards e of the intersection of Black Bart Road and Forbestown Road); Forbestown Road 609 Comment
  CHSC46297  Bacopa rotundifolia Vernon Oswald 1989-5-30 3791 Butte Sheep Camp Ditch on the w side of the n end of Cana-Pine Creek Rd near Vandergrift Lake. 54 Comment
  CHSC32754  Balsamorhiza deltoidea J. D. Jokerst; R. A. Schlising 1981-4-16 1299 Butte SW of Sweedes Flat Rd, 0.9 mi E of it's junction with Bangor Rd (6 mi E of Oroville). Comment
  CDA36621  Bergia texana L. Ahart 2006-8-5 13083 Butte On the bottom of a large wash, Peter Ahart Ranch, about 1 1/2 miles north and 300 yards east of Honcut, about 12 miles south of Oroville. Comment
  SEINET3449099  Bergia texana Unknown 2002-12-6 10021 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 20 Comment
  CAS-BOT-BC102077  Bidens frondosa Lowell Ahart 1974-9-30 s.n. Butte Peter Ahart Ranch, Honcut Comment
  CHSC28384  Bidens frondosa J. D. Jokerst 1979-10-13 384 Butte Intersection of Concow Cr. and Jordan Hill Rd., 0.8 mi W of Concow Rd. Comment
  CHSC76266  Bidens frondosa Lowell Ahart 1999-9-21 8262 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
  JEPS120603  Bidens frondosa Lowell Ahart 2013-11-17 19259 Butte McCabe Creek, below the high water line of Lake Oroville, about 5/8 mile southwest of the enterprise Bridge across Lake Oroville. Comment
  RSA0037017  Bidens frondosa Lowell A. Ahart 2013-11-17 19259 Butte Along the sides of McCabe Creek, below the high water line of Lake Oroville, about 5/8 mile southwest of the Enterprise Bridge across Lake Oroville. 245 Comment
  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
  POM29973  Blennosperma nanum C. C. Bruce 1897-01 2074 Butte Foothills Comment
  CHSC33707  Boechera arcuata J. D. Jokerst 1981-5-21 1331 Butte Ca 1.0 mi NE of the town of Pulga. Comment
  CHSC43458  Boechera arcuata Lowell Ahart 1978-4-19 1650 Butte At the overlook at Feather Falls, about 6 miles north of the town of Feather Falls. 548 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
  CHSC36842  Bolboschoenus glaucus M. S. Taylor 1982-5-22 4503 Butte Graylodge Waterfowl Refuge, in vicinity of parking lot 6, on Rutherford Rd, ca. 1/2 mi e of its jct with Pennington Rd, ca. 12 mi sw of Gridley. 21 Comment
  CAS-BOT-BC75488  Bolboschoenus glaucus J. D. Jokerst; L. Ahart; M. S. Taylor 1982-4-29 1544 b Butte Grey Lodge Waterfoul Management area, dirt road north of Rutherford Road. Comment
  UC600573  Botrychium simplex H. F. Copeland 1931-6-6 Butte Jonesville, below cabin Comment
  SEINET10483071  Boykinia elata Lowell Ahart 1985-6-30 Ahart 5075 Butte East of the dirt road to the Forbestown Res., about 2 1/2 miles north-east of Forbestown. Comment
  CHSC69114  Boykinia major Lowell Ahart 1997-8-1 7796 Butte At the bottom of Little Kimshew Creek, about 1/4 mile east of Table Mountain, about 8 miles (air) northeast of Stirling City. 1371 Comment
  CHSC112930  Brachypodium distachyon B. Castro 2012-5-9 1919 Butte Sacramento Valley. Between Hwy 99 and the Thermalito Afterbay levee, ca 0.4 mi N of jcn of Hwy 99/Hwy 162W and ca 0.4 mi S of screened CDFG fishery facility. 39 Comment
  RSA755643  Brachypodium distachyon L. Ahart 2009-5-15 15673 Butte About 80 yards W of the dirt road that is Ten Mile House Road, Upper Bidwell Park, about 2/3 air mile W of Highway 32, about 10 miles NE of Chico. 271 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
  CHSC70830  Brassica rapa Vernon Oswald 1998-4-1 8893 Butte South edge of White Ave. 100 ft east of The Esplanade, Chico urban area. Between street and sidewalk. 54 Comment
  CAS-BOT-BC106320  Brickellia californica Lowell Ahart 1980-9-10 2631 Butte 1 mile north-east of Milsap Bar - Sierra Nevada 900 Comment
  CHSC46909  Brickellia californica Lowell Ahart 1973-11-1 288 Butte Along North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC94576  Brickellia californica Lowell Ahart 2006-9-11 13335 Butte Gravel bar, south side of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville. 431 Comment
  SEINET10475011  Brickellia californica Mary Susan Taylor 1977-11-12 Taylor 1542 Butte Up to 1/4 mi beyond end of Upper Bidwell Park Road, just out of Upper Bidwell Park, Chico. Foothill Woodland. Comment
  CHSC37652  Brickellia greenei T. B. Devine 1981-8-25 754 Butte Hwy 70, ca. 1/2 mi SE of Pulga Bridge. 487 Comment
  CHSC116975  Briza maxima Matthew Forster 2013-5-14 Butte Oroville Spillway, off Oro Powerhouse Rd., adjacent to Oroville Sspillway. 118 Comment
  CHSC81589  Briza maxima D. Tellefson 2000-4-27 Butte Near Table Mountain Golf Course, Oroville. 40 Comment
  CAS-BOT-BC145540  Briza minor Lowell Ahart 1979-5-11 s.n. Butte Honcut, Peter Ahart Ranch. 50 Comment
  JEPS116080  Briza minor Lowell Ahart 2009-5-23 15729 Butte Opening in a drainage, 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
  UC1130947  Briza minor J. E. Sowder 1933-6-20 87 Butte 1 1/4 mi nw Yankee Hill; Chico Comment
  SEINET10570649  Brodiaea A. Arthur Heller 1938-4-11 Heller 15023 A Butte Hill back of the rifle range east of Chico in the oak belt of the Upper Sonoran Life Zone, 300 feet. Comment
  CHSC39543  Brodiaea elegans Lowell Ahart 1983-6-6 4028 Butte Peter Ahart Ranch, about 2 miles north and 1/4 mile east of Honcut. 50 Comment
  SEINET10938217  Brodiaea laxa Mary Susan Taylor 1973-1 Taylor 56 A Butte Upper Bidwell Park, Chico. Associates: Stipa pulchra, Lasthenia chrysostoma, Layia fremontii. 61 Comment
  CDA39462  Brodiaea minor L. P. Janeway 2000-5-14 6721 Butte Sacramento Valley; East side of Pine Creek Road 0.3 mile north of Pine Creek Comment
  CHSC2093  Brodiaea minor E. R. Washburn 1930-4-1 Butte Comment
  CHSC29832  Brodiaea minor M. S. Taylor; R. S. Schlising, L. Ahart 1980-5-31 2761 Butte E side of Kunkle Reservoir, ca. 1/4 mi e of Pentz-Magalia Hwy, ca. 3 mi s of Paradise. 441 Comment
  POM264783  Brodiaea minor Lincoln Constance 1941-5-28 2825 Butte 3 miles SW of Paradise, Sierra Nevada foothills. 305 Comment
  UC3332  Brodiaea minor Carl Purdy 1821-1 Butte Comment
  CHSC3529  Brodiaea nana John Francis 1966-5-7 156 Butte 4.2 miles N. of intersection of Pentz Rd. and Hwy. 99E., on Pentz Rd. Comment
  RSA178621  Brodiaea purdyi A. A. Heller 1928-6-28 14657 Butte At Butte Meadows. Comment
  CHSC90988  Brodiaea sierrae Lowell Ahart 2005-5-11 11805 Butte Pasture field, south of Beatson Hollow, about 1 1/4 miles northwest of the poor dirt road off of Cherokee Road, south part of North Table Mountain, about 7 miles (air) north of Oroville. 305 Comment
  CAS-BOT-BC486480  Brodiaea sierrae John Thomas Howell 1955-6-14 30436 Butte Magalia 731 Comment
  UCD139163  Brodiaea sierrae Lowell Ahart 1998-7-10 8036 Butte on the southeast side of North Honcut Creek, Peter Ahart Ranch, about 1.5 miles north and 2.75 miles east of Honcut about 12 miles southeast of Oroville. 54 Comment
  SEINET3885117  Brodiaea volubilis Margaret J. Williams 1984-5-25 84- 21 -2 Butte 3.3 mi from Paradise on Honey Run Road.; 0 Comment
  RSA700275  Bromus carinatus L. Ahart 2004-8-2 11333 Butte On both sides of the dirt County Road, between the Sky High Mine and Dresser Reservoir Dam, about 7 miles (air) southeast of Butte Meadows 1913 Comment
  RSA726808  Bromus carinatus L. Ahart 2007-5-29 13943 Butte On the south side of the Dome Trail, trail leads to the Middle Fork of the Feather River, at the trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Big Bald Rock, about 16 miles (air) northeast of Oroville. 844 Comment
  CAS-BOT-BC148731  Bromus carinatus var. marginatus John Thomas Howell 1962-6-15 37489 Butte Sierra Nevada. Magalia. 731 Comment
  CAS-BOT-BC148837  Bromus carinatus var. marginatus Lowell Ahart 1984-6-10 4706 Butte Along the edge of the dirt road, about 2 miles southwest of the Forbestown Diversion Dam, northeast of Forbestown. 700 Comment
  CAS-BOT-BC155945  Bromus commutatus Lowell Ahart 1989-5-29 6316 Butte Along the gravel road to the Forbestown Reservoir, about 1 mile northeast of Forbestown. 792 Comment
  CHSC26444  Bromus diandrus P. Moyer 1972-4-9 165 Butte CSUC Campus. North bank of Chico Ck., w of Warner St. Bridge. 60 Comment
  CAS-BOT-BC155464  Bromus hordeaceus Javier Penalosa 1962-6-18 2464 Butte Near Confluence of French and Peavine Creeks. 609 Comment
  SEINET11683503  Bromus hordeaceus Unknown 1974-1 42 Butte ca 50 ft from intersection of East Ave. & Mariposa Ave. on NE side of Mariposa Ave., Chico 61 Comment
  SEINET10527855  Bromus hordeaceus subsp. hordeaceus R. M. Austin Austin s.n. Butte Comment
  CAS-BOT-BC162457  Bromus laevipes John Thomas Howell 1967-6-22 42621 Butte Sierra Nevada. Magalia. 701 Comment
  CAS-BOT-BC162468  Bromus laevipes Lowell Ahart 1983-6-21 4058 Butte Along Bloomer Hill Road, ca. 1/8 mile west of the Oroville Quincy Highway, 1.25 mile south of the Berry Creek School, northeast of Oroville. Sec. 5. 400 Comment
  CHSC49522  Bromus madritensis subsp. madritensis Vernon Oswald 1985-4-29 1727 Butte Oroville-Quincy Hwy 1.9 mi s of Bidwell Bar Bridge. 316 Comment
  RSA654633  Bromus orcuttianus G. Fred Hrusa, T. D. Wilfred 1996-7-8 13090 Butte Near Old railroad Grade Rd., Paradise Lake Dam, Approx. 3 m. N of Magalia 800 Comment
  UCD59068  Bromus orcuttianus G. F. Hrusa; T. D. Wilfred 1996-7-8 13100 Butte Plumas National Forest. Near Old Railroad Grade Rd., Paradise Lake Dam, approx 3 mi. N of Magalia. 800 Comment
  JEPS120094  Bromus tectorum Lowell Ahart 2012-6-14 18187 Butte On the south side of the path, south of CARD Community Center, Lower Bidwell Park, Chico. Comment
  CHSC96959  Bulbostylis capillaris Lowell Ahart 2007-6-12 14073 Butte Along swales, in a large bare granite opening (about an acre in size), northeast of Little Bald Rock, about 300 yards east of Bean Creek Road, about 16 miles (air) northeast of Oroville. 1009 Comment
  CDA5336  Bupleurum lancifolium Mackessy, L. L. Heinrichs 1963-6-19 Butte L. A. Balsley property, Route 1, Box 248, Oroville. 0 Comment
  CAS-BOT-BC438356  Calandrinia ciliata John Thomas Howell 1978-4-17 52844 Butte Table Mountain 381 Comment
  CHSC87423  Calandrinia ciliata R. D. Fischer 2004-3-20 113 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located on Guardian Trail, 100' north of Pine Trail junction. 408 Comment
  UC600490  Calandrinia ciliata H. F. Copeland 1931-7-10 Butte gulch opening into Colby Canyon; Jonesville 1524 Comment
  RSA456118  Callitriche heterophylla L. Ahart 1984-5-7 4595 Butte 0.5 miles N of Kunkle Reservoir, along Kunkle Creek, 2 miles S of Paradise, E side of Pentz-Magalia Hwy.; pool a little E of Kunkle Creek. 600 Comment
  CAS-BOT-BC80360  Calocedrus decurrens Lowell Ahart 1980-9-10 2623 Butte Little Bald Rock 1100 Comment
  CHSC103161  Calocedrus decurrens Lowell Ahart 2009-11-19 16548 Butte About 80 yards southeast of the gate, about 70 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 269 Comment
  CHSC111406  Calocedrus decurrens Lowell Ahart; Susan Bazell, Josephine Guardino, Wes Dempsey 2012-7-5 18267 Butte Cedar Grove, south of parking area, Lower Bidwell Park, Chico. 71 Comment
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Aug 28 2018
  CHSC31419  Calocedrus decurrens L. Ahart 1980-9-10 2623 Butte Along the edge of Bean Creek Rd, ca. 1 mi se of Little Bald Rock, ne of Oroville. 335 Comment
  SEINET175334  Calocedrus decurrens E. B. Copeland 1931-7-28 603 Butte On ridge W of North Willow Creek Jonesville 1650 Comment
  SEINET11738872  Calocedrus decurrens D. J. Straub 1977-1 17 Butte ca 300 yards SE of Magalia Reservoir & 0.5 mi N of West Branch Feather River 853 Comment
  CHSC51938  Calochortus albus C. E. Stewart 1983-4-17 1 Butte At S end of Table Mountain, 10 ft W of Cherokee-Table Mountain Rd, 5.5 mi N of Oroville. 335 Comment
  CAS-BOT-BC487511  Calochortus albus A. A. Heller 1914-5-8 11375 Butte Plateau above Clear Creek on the Paradise road Comment
  RSA424692  Calochortus albus J. Liston, M. A. Blumler 1987-4-24 659 -1 Butte Table Mountain, N of Oroville on Cherokee Rd. Below the top of Table Mountain. Comment
  SEINET10872528  Calochortus albus Mary Susan Taylor 1980-4-27 Taylor 2567 Butte T22N R2E se sec 25. On S side of Humbug Rd, ca. 0.5 mi upstream from Honey Run Covered Bridge, ca. 7 mi E of Chico; Foothill Woodland on edge of Riparian Woodland. With J.D. Jokerst. 137 Comment
  CAS-BOT-BC491863  Calochortus luteus Peter Ahart; Lowell Ahart 1979-5-12 s.n. Butte Valley grassland, Honcut 50 Comment
  RSA113891  Calochortus luteus E. K. Balls, Lee W. Lenz 1955-5-13 20482 Butte 3.2 miles north of Oroville on road to Magalia and Paradise 122 Comment
  CHSC2832  Calochortus monophyllus David Prall 1965-4-16 21 Butte Growing along Helltown Canyon Rd. 1 mile north from Humbug Rd. 228 Comment
  SEINET10469599  Calochortus monophyllus Mary Susan Taylor 1980-4-18 Taylor 2511 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
  UC398904  Calochortus nudus E. B. Copeland 1929-7-21 353 Butte Jonesville 1550 Comment
  POM169644  Calochortus superbus Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  SD1664  Caltha howellii E. B. Copeland June 1930 Butte Jonesville; in meadows by North Willow Creek 1550 Comment
  JEPS117414  Caltha leptosepala var. biflora Lowell Ahart 2010-9-28 17266 Butte On the south edge of a 10 acre meadow, about 100 yards east of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir 1886 Comment
  CAS-BOT-BC106081  Calycadenia oppositifolia John Thomas Howell 1951-6-26 27513 Butte Feather River Canyon, Sierra Nevada 213 Comment
  CHSC62711  Calycadenia oppositifolia L. P. Janeway 1993-5-30 4363 Butte Above Ponderosa Way, 1.3 mi northeast of Coutolenc Road; ca 1.3 mi north-northeast of Magalia. 563 Comment
  CHSC76828  Calycadenia oppositifolia L. P. Janeway 1999-11-15 6628 Butte Northern Sierra Nevada foothills. Between Nelson Bar Road and Lake Oroville, 0.25 mi north-northwest of Lime Saddle. 281 Comment
  CHSC78118  Calycadenia oppositifolia Lowell Ahart 2000-5-31 8415 Butte A serpentine ridge, about 200 yards east of where Kunkle Creek enters Lake Oroville, east of the Kunkle Power House, about 3 miles southeast of Paradise. 335 Comment
  CHSC87573  Calycadenia oppositifolia R. D. Fischer; Jenny Marr 2004-5-9 143 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located along Annie Bidwell Trail between Diversion Dam and Bloody Pin Trail near bluff edge. UTM: 10608190E 4404520N. 192 Comment
  RSA788204  Calycadenia oppositifolia R. L. Carr 1978-7-7 789 Butte NE of Chico, ca. 0.3 mi SW of N boundary of Upper Bidwell Park (Devil's Kitchen), ca. 5.6 mi NE of Manzanita Ave on Upper Bidwell Canyon Rd via Wildwood Ave, 100 yds NW of rd. 244 Comment
  UC398686  Calycadenia oppositifolia A. A. Heller 1926-5-22 13940 Butte 3 mi n of, along the Richardson Springs road Chico Comment
  UC88991  Calycadenia oppositifolia Mrs. R. M. Austin 1886-5-1 169 Butte Iron Canyon Comment
  RSA755412  Calycadenia truncata L. Ahart 2009-6-30 15954 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
  CAS-BOT-BC275390  Calycadenia truncata var. truncata Lowell Ahart 1983-6-26 4153 Butte Along the edge of Ponderosa Way, about 1.5 miles SE of the E Fork of Canyon Creek, about 14.5 miles NE of Oroville 575 Comment
  CHSC117664  Calycanthus occidentalis Lowell Ahart 2016-8-30 21318 Butte In ravine on the north side of La Porte Road, about one mile west of Marysville Road, about 4 miles (air) southwest of Brownsville. 609 Comment
  SEINET10830263  Calyptridium umbellatum Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4247 Butte T22N R7E nw sec 31. Ca. 2 mi e of Milsap Bar, ca. 25 mi ne of Oroville. Yellow Pine Forest; 900 m. 900 Comment
  JEPS113313  Calystegia atriplicifolia subsp. buttensis L. P. Janeway 2006-6-25 8696 Butte Northern High Sierra Nevada. Along a major dirt road 2.6 km south of Stirling City towards West Branch Feather River crossing. Comment
  SEINET10496682  Calystegia polymorpha Mary Susan Taylor 1982-6-24 Taylor 4724 Butte T22N R4E sw/se sec 14. Pulga SW quad. E side of Ponderosa Way (Rim Rd), 1.3 mi n of its jct with Hwy 70 at Jarbo Gap, ne of Oroville. 2800 ft. 853 Comment
  SEINET10472624  Camassia leichtlinii subsp. suksdorfii Mary Susan Taylor 1978-6-24 Taylor 1661 Butte Montane Meadow, on N side of Old Humboldt Road, across the road from Butte Meadows; Yellow Pine Forest. 1372 Comment
  CHSC51082  Camassia quamash subsp. quamash Pauleen Broyles 1987-7-19 1079 Butte Ca. 7.2 km (air) NE of Inskip. 526 Comment
  CHSC95183  Camassia quamash subsp. quamash R. D. Fischer 2005-6-5 827 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
  JEPS122230  Capsella bursa-pastoris Lowell Ahart 2014-4-26 19418 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
  CHSC34525  Cardamine californica var. californica R. E. Preston 1982-1-31 158 Butte S rim of Chico Creek canyon above Salmon Hole, ca. 5 1/2 mi ne of Chico. 304 Comment
  CHSC39612  Cardamine oligosperma Lowell Ahart 1983-3-28 3910 Butte Found on the east bank of Woodleaf Creek, above the road, about 3/8 mile south-west of the Forbestown Res., about 4 miles north-east of Forbestown. 450 Comment
  SEINET8370186  Cardamine oligosperma John Dittes, Josephine Guardino 1991-4-19 338 Butte Cascade Range Foothills; North Table Mountain; ca. 5.1 airmiles north of Oroville City Hall, ca. 4.2 air-miles south by southwest of Cherokee, ca. 3.8 air-mile east of intersection of State Hwy 99 and State Hwy 149. 366 Comment
  CHSC73757  Cardamine pachystigma B. Castro 1996-3-26 658 Butte Ca 7.5 air mi NW of Brush Creek, 0.6 mi SE of Big Bar Mtn, and 150 ft S of USFS Rd 23N28, at E edge of meadow below Wyman Spring. 1188 Comment
  CHSC106602  Carduus pycnocephalus subsp. pycnocephalus L. P. Janeway 2011-4-13 10232 Butte Sacramento Valley. Oroville; just east of Centennial Park, along the north edge of the road along the top of the levee on the south side of Feather River. 50 Comment
  CHSC104809  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
  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
  CHSC44839  Carex amplifolia L. P. Janeway; R. A. Schlising 1988-8-2 3154 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
  SEINET7468091 Image available Carex amplifolia Robert F. C. Naczi, Anton A. Reznicek 2006-8-1 11399 Butte Jonesville, along Jones Creek, just NE of the historic Jonesville Inn. Comment
  CAS-BOT-BC17903  Carex angustata H. F. Copeland 1920-8-1 166 Butte Jonesville meadow. 1219 Comment
  CHSC11937  Carex angustata E. B. Copeland 1930-8-10 609 Butte Jonesville. 1500 Comment
  CHSC42823  Carex aurea L. P. Janeway 1987-6-19 2242 Butte Along Barton Hill Rd towards Sly Cr Reservoir, 1.7 mi from the Challenge-LaPorte Rd and Travis Saddle. 1066 Comment
  SEINET10466741  Carex aurea Mary Susan Taylor, Lowell Ahart 1981-8-15 Taylor 4191 Butte T25N R5E sw 1/4 se 1/4 36. Jonesville SW. S. side of Coon Hollow Rd., 1.1 mi E of its jct with Humbug Rd, ca. 12 mi ne of Stirling City. 5500 ft. 1676 Comment
  SEINET10927860  Carex aurea Mary Susan Taylor, Lowell Ahart 1982-8-15 Taylor 4191 Butte T25N R5E SW1/4 SE1/4 Sec 35. Joneville SW quad. S side of Coon Hollow Rd in moist spot, 1.1 mi E of its jct with Humbug Rd. 12 mile NE of Stirling City. With Perideridia howellii, Hypericum anagalloides. 1676 Comment
  SEINET7291831 Image available Carex aurea E. B. Copeland 1930-6-23 608 Butte Jonesville Comment
  CAS-BOT-BC19202  Carex barbarae John Thomas Howell 1955-9-6 30908 Butte Bank of Butte Creek east of Butt City. Comment
  CHSC46857  Carex bolanderi R. A. Schlising; P. Broyles 1988-7-3 4564 Butte SE of Stirling City, past '5 corners' at small stream. Comment
  SEINET7552617 Image available Carex bolanderi Lewis S. Rose 1963-6-5 63140 Butte North Fork of Feather River; Arch Rock Tunnel 488 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
  SEINET8151188 Image available Carex cyrtostachya P. F. Zika 2011-1 25715 Butte Forest Road 20N03 (Moreville Ridge Road), 2 air miles SE of Sugar Pine Point, Pinkard Creek drainage; northern Sierra Nevada Highlands 1975 Comment
  CHSC47064  Carex densa L. P. Janeway; Vern H. Oswald 1989-4-17 3219 Butte Along levee on E side of Butte Cr, 1.8 mi S of Biggs-Princton Rd (Afton Rd). On E side of the levee along edge of fallow rice field. 18 Comment
  CDA42884  Carex divulsa subsp. divulsa L. Ahart 2012-5-25 18113 Butte Northwest of the intersection of W. Frances Willard Avenue and Arcadian Avenue, one block south of Chico High School, Chico. Comment
  JEPS120147  Carex divulsa subsp. divulsa Lowell Ahart 2012-4-30 17948 Butte On the north side of Big Chico Creek, Lost Park in Bidwell Park, City of Chico. Comment
  SBBG128721  Carex divulsa subsp. divulsa L. Ahart 2012-5-25 18113 Butte NW of intersection of W Frances Willard Avenue and Arcadian Avenue, one block S of Chico High School, Chico 59 Comment
  CDA14070  Carex feta G. F. Hrusa, T. D. Wilfred 1997-5-1 13717 A Butte Sierra Nevada; NE side of upper end of Paradise Lake. Where last tributaries from E enter. Old growth Douglas-fir/mixed hardwoods. Moist site, outside standing water, on lakeshore. Clumping perennial. Comment
  SEINET10650513  Carex feta Lowell Ahart 1987-5-6 Ahart 5544 Butte On damp to dry sand, along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC43912  Carex fracta L. P. Janeway 1987-6-26 2308 Butte Above Camp Cr, 2.5 mi E of Granite Ridge along rd to Lynch and Logue Mdws. 1365 Comment
  CHSC83298  Carex fracta L. P. Janeway; B. Castro 2002-7-7 7618 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
  SEINET7559906 Image available Carex globosa John Thomas Howell, Gordon H. True 1969-4-9 45490 Butte Magalia. 701 Comment
  RSA726774  Carex gracilior L. Ahart 2007-4-16 13675 Butte Peter Ahart Ranch about 1 1/2 miles north and 2 2/3 miles east of Honcut, about 12 miles southeast of Oroville. 52 Comment
  SEINET4292192 Image available Carex gracilior Unknown 2003-1 7782 Butte Sacramento Valley. North end of Chico; along Sycamore Creek 160 m west of Cohasset Road bridge. Richardson Springs 7.5' quad. Comment
  SEINET7560147 Image available Carex gracilior Unknown 2003-5-8 7782 Butte Richardson Springs 7.5' quad. Sacramento Valley. North end of Chico, along Sycamore Creek 160 m west of Cohasset Road bridge. 56 Comment
  CHSC45053  Carex heteroneura var. heteroneura Vernon Oswald 1987-6-23 3013 Butte High Lakes Rd. 1.4 mi (odometer) n of Philbrook Rd. 1767 Comment
  CHSC110350  Carex hirtissima L. P. Janeway 2013-5-5 11096 Butte Northern High Sierra Nevada. Plumas National Forest; eastern slope of Bloomer Hill, 1.0 air km east of the top. 701 Comment
  JEPS95458  Carex hirtissima Lowell Ahart 1994-4-22 7288 Butte 3 1/2 mi SW of Forbestown (S of int of Black Bart Road and Forbestown Road) 609 Comment
  SEINET7561550 Image available Carex hirtissima L. P. Janeway, Gavin Blosser, Adam Henderson, John Hunt 2003-4-15 7758 Butte Oroville Dam quad. Northern Sierra Nevada Foothills, near west edge of Lake Oroville/North Fork Feather River 6.8 km north of the Spillway Boat Ramp. 280 Comment
  CHSC76350  Carex hoodii L. P. Janeway 1999-7-17 6506 Butte Along Scotts John Creek 0.2 mi north of the road that connects Humboldt Road and Humbug Road. 1749 Comment
  CHSC94426  Carex integra Lowell Ahart 2006-8-15 13175 Butte North edge of a wet area west of a large open meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1569 Comment
  SEINET4286076  Carex integra Unknown 2009-1 s.n. Butte Near Cornelia Lott Sank Memorial Spring. Comment
  CHSC52916  Carex jonesii L. P. Janeway 1988-7-2 2945 Butte Marsh-meadow at upper reach of Brush Creek, ca 1.5 mi S of 'town' of Brush Creek. 952 Comment
  SEINET10710015  Carex jonesii Vernon H. Oswald, Lowell Ahart 1988-6-17 Oswald 3404 Butte T20N R7E se/ne/S13, Yellow Pine Forest. Pinkard Creek ca. 1.5 mi n of Lost Creek Reservoir. Small part of a tufted sedge growing along the edge of the creek where it flows through a large meadow developed on impounded tailings from placer and hydraulic mining upstream. 1067 Comment
  CHSC44931  Carex laeviculmis Lowell Ahart 1988-7-31 6154 Butte Road gutter, north of a small stream, 1 1/2 air miles west and a little south of Bald Mountain, about 3 air miles north-east of Stirling City. 1066 Comment
  CHSC45747  Carex laeviculmis L. P. Janeway 1988-6-19 2839 Butte 3.3 mi N of Stirling City towards Inskip along logging rd 0.2 mi W of The Skyway. 1219 Comment
  UC175309  Carex laeviculmis A. A. Heller 1913-6-7 10819 Butte near Stirling; West Branch of the North Fork of the Feather River 914 Comment
  SEINET10467308  Carex laeviculmis Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4746 Butte About 1 1/2 mile south-east of Bald Mountain, 3/4 mile west of Oak Point, about 4 miles north-east of Stirling City. Comment
  POM218980  Carex lemmonii E. B. Copeland 1929-7-5 610 Butte Jonesville. 1500 Comment
  CHSC105834  Carex mariposana Lowell Ahart 2010-7-27 16928 Butte High bank on the west side of the South Fork of the Feather River, east of Forest Road 22N68, about 1/4 mile southwest of the Feather Fork Mine, about 1-1/2 miles (air) northeast of Little Grass Valley Reservoir 1565 Comment
  CAS-BOT-BC32158  Carex multicaulis L. P. Janeway; Robert A. Schlising; B. Castro; Pauleen Broyles 1987-7-19 2493 Butte Butte Meadows quad. Near Humbug summit Rd ca 5.5 mi N of Inskip, 1539 Comment
  SEINET7568665 Image available Carex nebrascensis Unknown 2004-8-15 8244 Butte Butte Meadows 7.5' quad. High Cascade Range, meadow along southeast side of Skyway (Humbug Summit Road), at the Cornelia Lott Sank Memorial Spring. 1519 Comment
  CHSC44103  Carex nervina L. P. Janeway; C. A. Janeway 1986-8-31 1803 Butte Along Jones Cr at dirt rd (26N27) crossing; the rd between Humboldt and Humbug Rds; 11 mi from hwy 32 by rd. 1615 Comment
  CHSC44690  Carex nervina L. P. Janeway; R. A. Schlising, B. Castro 1988-7-23 3084 Butte Along Scotts John Cr 2.7 mi N of the Butte Cr rd. 1920 Comment
  HSC87281  Carex nervina L. P. Janeway, Robert A. Schlising 1988-7-16 3012 Butte Along Willow Creek, 1 mi. W of Humbug Rd. 1799 Comment
  HSC86840  Carex nervina L. P. Janeway, Robert A. Schlising, B. Castro 1988-7-30 3146 Butte Coon Hollow, along dirt road 0.9 mi. SE of W Branch Feather River 1646 Comment
  CAS-BOT-BC119564  Carex nudata L. P. Janeway 1987-5-10 2034 Butte Stirling City quad. Butte Creek ca 500 ft upstream from the Doe Mill Rd bridge, 609 Comment
  CHSC52232  Carex pachystachya L. P. Janeway 1987-6-20 2254 Butte South Fork Feather River at crossing of road from Lumpkin Ridge to Mooreville Ridge, 3.3 mi from the Feather Falls-Lumpkin Ridge Road. 975 Comment
  CHSC84712  Carex pellita L. P. Janeway 2003-6-8 7819 Butte High Cascade Range. Flea Valley: meadow at head of Concow Creek. 1103 Comment
  CHSC52240  Carex pendula L. P. Janeway 1989-11-23 3652 Butte South side of city of Chico; along Comanche Creek (Edgar Slough) just SW of Meyers Ave. 59 Comment
  UC1537179  Carex praegracilis Gordon H. True Jr. 1936-3-26 378 Butte Wild Goose Country Club Butte Creek 15 Comment
  CHSC100887  Carex rossii L. P. Janeway; Linus Gog 2008-7-19 9444 Butte High Cascade Range. North side of Scotts John Creek at crossing of Road 26N27 (the connector between Humboldt Road and Humbug Summit Road). Especially along old logging disturbed route that was ripped and allowed to return to natural. 1740 Comment
  CHSC102213  Carex rossii L. P. Janeway 2009-11-14 9962 Butte High Cascade Range. North side of Scotts John Creek at corssing of Road 26N27 (the connector between Humboldt Road and Humbug Summit Road). 1740 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
  SEINET10709381  Carex rossii Lawrence P. Janeway 1988-7-30 Janeway 3137 Butte T25N, R5E, Jonesville quad (15') NW 1/4 of sec. The ridge SE from Snow Mtn. N edge of ridgetop red fir forest and pine-mat manzanita chaparral. 2103 Comment
  CHSC102602  Carex subfusca L. P. Janeway; B. Castro 2009-7-4 9836 Butte Northern High Sierra Nevada. Along Four Trees Road 3.4 road km east of Coyote Gap; at head of minor drainage into Clear Creek, head of French Creek Basin. 1469 Comment
  UC830196  Carex subfusca A. A. Heller 1915-6-25 12018 Butte Chico Meadows Sierra Nevada 1219 Comment
  SEINET7577207 Image available Carex subfusca E. B. Copeland 1929-7-20 611 Butte Jonesville, by Jones Creek. 1500 Comment
  UCSB64037  Carex texensis Janeway, L. 1997-4-20 Butte T22N, R1E, SW1/4 of NW1/4 of sec. 36; within the City of Chico; south side of town; in backyard lawn at 129 W 19th Street 60 Comment
  CAS-BOT-BC115190  Carex vernacula Lowell Ahart 1980-8-2 2518 Butte Humboldt Pk. 2300 Comment
  SEINET10894839  Carex vernacula Lowell Ahart 2010-9-28 Ahart 17264 Butte T25N, R5E, northeast 1/4 Section 29. On the south edge of a 10 acre meadow, about 100 yards east of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1886 Comment
  CHSC94924  Carex vulpinoidea L. P. Janeway 2006-7-10 8810 Butte Northern Sierra Nevada Foothills. West side of Morris Ravine arm of thermalito Diversion Pool (Feather River), 2.0 km north-northeast of Thermalito Diversion Dam. At edge of water. 68 Comment
  CHSC6052  Castanea dentata M. MacArthur 1968-6-22 285 Butte Ca. 20 ft. SE of Bld. D along So-Will-lin-no st., Chico State College. 60 Comment
  JEPS8408  Castilleja W. L. Jepson 1891-4-20 21474 Butte South Peak; Marysville Butte Region Comment
  CHSC44706  Castilleja affinis R. Banchero 1980-3-27 82 Butte Along Richardson's Springs Rd Ca 4 mi NE of its jct with Cohasset Hwy, Ca 1.3 mi W of the town of Richardson's Springs. 213 Comment
  JEPS86449  Castilleja affinis subsp. affinis L. R. Heckard 1973-6-9 3426 Butte ca 5 mi e Oroville (Olive Hwy ca 0.4 mi from junction with Forbestown Rd) 365 Comment
  CAS-BOT-BC249334  Castilleja applegatei Lowell Ahart 1983-6-21 4074 Butte Along Bloomer Hill Road, about 3/4 mile west of the Oroville Quincy Highway, about 15 miles north-east of Oroville 425 Comment
  CDA13281  Castilleja applegatei subsp. pinetorum G. F. Hrusa, T. D. Wilfred 1996-7-9 13129 Butte Plumas National Forest; W side above Jordan Creek. Jordan Creek headwaters S of Hwy 162 near Roger's Cow Camp. Comment
  CAS-BOT-BC255463  Castilleja applegatei var. pinetorum Mrs. J. H. Morrison 1932-5-1 s.n. Butte Durham Comment
  CHSC118060  Castilleja attenuata Daphne K. Christopher; Hannah Stevens, Lowell Ahart 2003-4-21 232 Butte Off Hwy 99. Ahart Family Ranch along boundary on access road and edge of field. 41 Comment
  CHSC77997  Castilleja attenuata Lowell Ahart 2000-5-13 8349 Butte On the south side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 42 Comment
  UC726419  Castilleja lacera A. A. Heller 1941-5-9 16107 Butte 0.5 mi above old Clear Creek Post Office site (on the Clark Road to Paradise) Comment
  CHSC3758  Castilleja pruinosa R. L. Adams 1964-4-2 80 Butte Roadside SE side of road, 1 1/2 mi. E. of Ten-Mile House on highway 32, 10 mi. E. Chico. Comment
  POM43182  Castilleja subinclusa C. C. Bruce 1897-05 1939 Butte Little Chico. Comment
  CHSC43163  Castilleja tenuis R. A. Schlising 1980-6-30 3796 Butte Meadow 0.1 mi S of Jct Humbolt Road and Skyway at Butte Meadows. 1341 Comment
  CHSC46316  Castilleja tenuis Vernon Oswalf 1989-6-8 3806 Butte W side of Concow Rd at Flea Valley. 1118 Comment
  UC426964  Castilleja tenuis E. B. Copeland 1930-7-24 470 Butte Jonesville 1500 Comment
  CHSC104014  Catalpa speciosa Lowell Ahart 2010-5-28 16744 Butte On the north side of the path, about 30 yards southwest of the Cedar Grove Parking Area, in Lower Bidwell Park, Chico. 67 Comment
  CAS-BOT-BC40504  Caulanthus lasiophyllus Lowell Ahart 1974-4-11 s.n. Butte Sierra Nevada. Honcut. 45 Comment
  SEINET12210557  Ceanothus cuneatus Unknown 1975-1 17 Butte 250 mi from Cohasset Rd, 6.8 mi.NE of Chico airport N of Chico Comment
  SEINET12210610  Ceanothus cuneatus B. R. Parker 1976-1 2 Butte 1.5 mi NE of Oroville on SE side of Glen Drive. Chaparral-Oak woodland ecotone 111 Comment
  CHSC64129  Ceanothus integerrimus Michael Deal 1992-4-19 5 Butte Private property, 449 Castle Drive, w of Laurel St., Paradise. 609 Comment
  SD2946  Ceanothus integerrimus E. B. Copeland 1929-7-14 Butte Jonesville, in edge of fir and pine woods. 1650 Comment
  UC1094003  Ceanothus integerrimus Lewis S. Rose 1955-6-15 55099 Butte Paradise Comment
  UC175534  Ceanothus integerrimus A. A. Heller 1913-6-7 10827 Butte west Branch of the North Fork of the Feather River near Stirling 914 Comment
  UC718223  Ceanothus integerrimus Carl B. Wolf 1937-5-18 8728 Butte 5 mi below Magalia (on Oroville Rd.); Northern Sierra Nevada 609 Comment
  UCR270589  Ceanothus integerrimus John F. Emmel 2001-7-24 1736 Butte 2.3 road miles southwest of Jonesville on road to Humbug Summit, near Cherry Hill Campground 1768 Comment
  CAS-BOT-BC47956  Ceanothus lemmonii Carl B. Wolf 1937-5-18 8726 Butte Northern Sierra Nevada - 5 mi. below Magalia on Oroville Road. 609 Comment
  CAS-BOT-BC51728  Ceanothus lemmonii A. A. Heller 1914-5-18 11371 Butte Forest Ranch, West slope fo the Sierra near Forest Ranch 822 Comment
  LA44872  Ceanothus lemmonii Lewis S. Rose; 1937-6-10 37377 Butte Forbestown 838 Comment
  CAS-BOT-BC52000  Ceanothus prostratus E. B. Copeland 1930-7-7 425 Butte Jonesville 1600 Comment
  SEINET194885  Ceanothus prostratus A. A. Heller 1949-4-10 15371 Butte unspecified Comment
  UC600526  Ceanothus prostratus H. F. Copeland 1930-7-26 Butte rocky peak above hotel (Jonesville); Jonesville Comment
  CHSC3015  Cedrus deodara Carl Pejsa 1958-4-19 137 Butte Bidwell Park Forestry Station. Comment
  CHSC111741  Celtis australis Lowell Ahart; Susan Bazell, Josephine Guardino, Wess Dempsey 2012-7-5 18264 Butte Cedar Grove, parking area, Lower Bidwell Park, Chico. 71 Comment
  CDA36159  Centaurea maculosa CDFA Staff Jul 1996 Butte Stirling City. 0 Comment
  CHSC35752  Centaurea melitensis R. E. Preston 1982-6-2 292 Butte Ca. 0.7 mi ne of Lime Saddle Powerhouse, ca. 4.5 mi se of Paradise. 365 Comment
  CHSC93860  Centaurea melitensis Lowell Ahart 2006-6-9 12659 Butte On the north side of Bardees Bar Road, north of the small stream, on the east side of the large stream, about 1/8 mile northwest of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga. 385 Comment
  JEPS117545  Centaurea melitensis Lowell Ahart 2010-6-20 16835 Butte About 3/8 mile north of Cox Lane, about 1 1/2 miles east of Palermo Honcut Highway, Guidci Ranch, about 7 1/2 miles (air) southeast of Oroville 55 Comment
  CHSC69446  Centaurea solstitialis Lowell Ahart 1997-9-6 7885 Butte Near the McNab Cypress grove, near the steel tower power line, along the sides of a logging road, about 1/4 mile west of Rim Road, about 2 miles (air) northeast of Concow Reservoir. 731 Comment
  SEINET3375646  Centaurea solstitialis C. Lumer, S. Yost 2006-8-1 2454 Butte Chico, California. Near Motel 6. 91 Comment
  UCR188716  Centaurea solstitialis George K. Helmkamp, E. A. Helmkamp 2007-10-7 13073 Butte Northern Sacramento Valley, Biggs East Hwy, 1.6 miles east of CA-99 at Biggs 32 Comment
  SEINET10454833  Centaurium floribundum Mary Susan Taylor 1979-10-13 Taylor 2271 Butte T23N R4E sec 29. Along creek on Jordan Hill Road (Ponderosa Way on some maps), ca. 10.7 mi N of its jct with Concow Road, ca. 2 mi NE of Magalia. With Jim Jokerst. 853 Comment
  JEPS115189  Centaurium muehlenbergii Lowell Ahart 2009-6-19 15943 Butte On dry soil, north of a trail to pond and table, on the east side of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 232 Comment
  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
  CHSC28807  Centromadia fitchii J. D. Jokerst; T. B. Devine, D. Greenstein 1979-9-13 411 Butte Top of north Table Mt, 100 m N of Cherokee Rd. 396 Comment
  CHSC38360  Centromadia fitchii Vernon Oswald 1983-6-17 697 Butte Upper Bidwell Park, Chico, at Horseshoe Lake. Above the high water line. 100 Comment
  UC171477  Centromadia fitchii A. A. Heller 1913-9-16 11136 Butte e of Chico (hills near Big Chico creek) 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
  CDA38803  Cephalanthus occidentalis L. Ahart 2012-7-5 18278 Butte On south edge of Big Chico Creek, at Table 11, east of the Deer Pen, Lower Bidwell Park, Chico. Comment
  CAS-BOT-BC388177  Cerastium fontanum John Thomas Howell 1962-6-15 37512 Butte Magalia 731 Comment
  JEPS107331  Cerastium glomeratum Lowell Ahart 2005-4-14 11715 -A Butte Bottom of a deep drain ditch, about 200 feet east of the railroad tracks, north of Spruce Street, Gridley 28 Comment
  JEPS122281  Cerastium glomeratum Lowell Ahart 2014-4-15 19355 Butte Below the high water line of Lake Oroville, about 400 yards west of the old road, about 3 1/2 miles (air) northeast of Oroville Dam. Comment
  CAS-BOT-BC179537  Cercis occidentalis A. A. Heller 1914-3-12 11194 Butte Plentiful in the canyon of Big Chico creek east of Chico. 68 Comment
  UCD162735  Cercis occidentalis Dylan O. Burge 2014-5-18 1624 Butte Butte Creek watershed, below Doe Mill Ridge, on slope above Butte Creek. 243 Comment
  SEINET10543165  Cercocarpus betuloides Melvin L. Conrad, David B. Dunn; Douglas G. LeDoux 1973-6-5 Conrad 7023 Butte 2.6 miles w of paradise on chico road 610 Comment
  SEINET10483775  Cercocarpus betuloides Mary Susan Taylor 1975-4-25 Taylor 499 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
  CHSC51055  Cercocarpus betuloides var. betuloides Pauleen Broyles 1987-4-29 1018 Butte On N side of Singer/Pine Creek in Oak Riparian Woodland. Vina Plains Preserve. Ca 100 m E of bridge on Haille Road. Comment
  CHSC54297  Chaenactis glabriuscula var. heterocarpha Vernon H. Oswald 1991-6-5 4645 Butte Dirt road to Minnie-Ha-Ha Mine located on Big Chico Creek, on the west side of Hwy 32 ca. 1.5 miles (air) northwest of Platte Mtn Lookout, between Forest Ranch and Lomo. 701 Comment
  CHSC27971  Chamaesaracha nana M. S. Taylor 1978-7-19 1767 Butte On e side of Upper Scotts John Rd, ca. 3 mi n of its jct with Scotts John Rd, ca. 7 mi ne of Jonesville. 1889 Comment
  CHSC30736  Chamaesyce glyptosperma M. S. Taylor 1980-7-6 3056 Butte Ca. 1 mi e of Meridian Rd, ca. 1.25 mi ne of its jct with Hwy 99, ca. 8 mi n of Chico. 67 Comment
  CHSC38438  Chamaesyce glyptosperma Vernon Oswald 1983-7-3 800 Butte Upper Bidwell Park, Chico, at the Rod and Gun Club. In the parking lot. 103 Comment
  CHSC52639  Chamaesyce hooveri R. D. Stone; R. E. Buck 1987-8-4 832 Butte Central Valley. Vina Plains, large vernal pool straddling fenceline (W of the fence) 0.4 miles WSW of the intersection of Highway 99 and Cana Highway. 56 Comment
  JEPS115034  Chamaesyce maculata Lowell Ahart 2007-10-31 14520 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
  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
  JEPS95159  Chamaesyce maculata Lowell Ahart 1997-10-24 7941 Butte about 20 yards n of South Fork of the Feather River (on the e side of Sucker Creek, strand of Lake Oroville, about 1/4 mi w of the Ponderosa Dam); e side of Sucker Creek 274 Comment
  UC175344  Chamaesyce maculata A. A. Heller 1913-9-16 11139 Butte e Chico (hills near Big Chico Creek) Comment
  CHSC45714  Chamaesyce ocellata Robert Schlising 1974-10-30 3160 Butte Chico; Bidwell Park area above golf course and rifle range. Comment
  CHSC31677  Chamaesyce serpillifolia subsp. serpillifolia L. Ahart 1975-7-5 851 Butte Along the edge of North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  SEINET3449624  Cheilanthes gracillima Unknown 2003-4-15 10099 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
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Sep 26 2014
  UC1563281  Chenopodium album Lowell Ahart 1990-9-30 6609 a Butte s side of creek about 1/8 mi e Canyon Creek Bridge across Lake Oroville (below high-water line of lake); Lake Oroville, East Fork of Canyon Creek 243 Comment
  UCD97743  Chenopodium album Lowell Ahart 1981-11-6 3223 Butte Gray Lodge, south-west of Gridley. 35 Comment
  HSC100729  Chenopodium strictum var. glaucophyllum Lowell Ahart 2009-8-13 16281 Butte NE of Hooker Oak, Upper Bidwell Park, Chico, S end of cement barrier that controls water flow into Mud Creek. 69 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
  SD3528  Chimaphila umbellata E. B. Copeland 1930-6-24 Butte Jonesville Comment
  UC426925  Chimaphila umbellata E. B. Copeland 1930-6-24 432 Butte Jonesville Comment
  CHSC2255  Chlorogalum pomeridianum M. Underhill 1952-7-7 Butte 609 Comment
  SEINET3450920  Chondrilla juncea Unknown 2003-7-10 10372 Butte Forbestown, Forbestown, about 2 miles air northwest 290 Comment
  CHSC9140  Chorizanthe stellulata M. P. Coffeen 1970-4-21 20 Butte 7 mi. up Skyway off Hwy. 99 E. About 50 ft. off rd. to the north on a dry rocky shelf. 396 Comment
  RSA122993  Chrysolepis sempervirens C. G. Albertus 1933-7-26 52 Butte 1/4 mile south of Barnum Mill. 1372 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
  CHSC41921  Cinna latifolia Lowell Ahart 1983-8-16 1522 Butte Along the edges of bogs, along a stream that flows into Butte Creek, about 1 mile east of Butte Meadows. 1450 Comment
  JEPS71174  Cinna latifolia A. L. Hormay 1929-7-20 Butte (10 mi se) Butte Meadows; se <of> Butte Meadows Comment
  CHSC46201  Circaea alpina subsp. pacifica L. P. Janeway 1988-7-2 2960 Butte Along road to French Cr 1.2 mi S of Coyote Gap. Above road. 1127 Comment
  UC177564  Cirsium andersonii H. M. Hall 1914-7-30 9817 Butte n Butte Co. Sierra Nevada Mountains 1615 Comment
  JEPS110393  Cirsium douglasii var. breweri Lowell Ahart 2006-8-15 13188 Butte East part of a large meadow with bogs, 15 yards west of Willow Creek, about 100 yards southeast of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
  POM304703  Cirsium occidentale var. venustum Henry J. Ramsey, Henry J. Ramsey 1939-10-15 193 Butte Feather River Hwy. Comment
  CAS-BOT-BC228755  Cistanthe umbellata Clarence R. Quick 1952-7-1 52 -118 Butte Mill Creek Road between Feather River Highway and Coyote Gap Comment
  CHSC5949  Citrus aurantium M. MacArthur 1968-6-17 180 Butte In large boxes at NE end of lawn between LS bld. and Auditorium, Chico State College campus. 60 Comment
  CHSC24785  Clarkia arcuata C. E. Stopher 1976-4-14 20 Butte 2.4 km s of Forest Ranch. 579 Comment
  RSA0059981  Clarkia arcuata R. T. Riding 1968-4-13 11 Butte North Table Mountain 396 Comment
  CAS-BOT-BC164132  Clarkia concinna A. A. Heller 1938-5-28 15114 Butte Along Highway #24, 22 miles east of Oroville Comment
  CAS-BOT-BC164519  Clarkia gracilis subsp. albicaulis H. Lewis; M. Lewis; M. Roberts 1951-5-19 830 Butte Road from Nimshaw to Butte Creek canyon, 2.3 mi. above bridge across Big Butte Creek Comment
  CAS-BOT-BC164521  Clarkia gracilis subsp. albicaulis Mrs. C. C. Bruce 1892-5-1 1954 Butte Little Chico Comment
  CHSC27737  Clarkia gracilis subsp. albicaulis Robert A. Schlising; Coleta Lawler 1978-5-29 3277 Butte Near Cohasset; along Cohasset Road, 4.3 miles above crossing of Mud Creek and 4.1 miles NE of jct with road to Richardson Springs. Comment
  HSC93259  Clarkia mildrediae subsp. lutescens L. P. Janeway 1995-7-7 4839 Butte Between Mtn. House, Brush Creek and Mosquito Creek, timber plantation above Rd. 22N49, .1 mi. N of French Creek Rd. 976 Comment
  CHSC70733  Clarkia mildrediae subsp. mildrediae L. P. Janeway 1994-6-17 4665 Butte Northwest side of canyon of North Fork Feather River, +/- overlooking Cresta; along Pulga Road (Camp Creek Road) 6.1 mi northeast of Pulga Bridge (Hwy 70). Road cutbank. 670 Comment
  CAS-BOT-BC163284  Clarkia modesta Saichi Kawahara 1968-5-4 372 Butte James Ripley's property, Graham Road, Paradise 640 Comment
  CAS-BOT-BC163354  Clarkia mosquinii L. P. Janeway 1995-7-7 4835 Butte Along Hwy 70 1.9 mi northeast of Jarbo Gap. Southeast-facing road cutbank through steep mid-slope of North Fork Feather River canyon 649 Comment
  SEINET10492502  Clarkia mosquinii subsp. mosquinii Lawrence P. Janeway 1991-6-1 Janeway 3978 Butte Berry Creek quad T22N, R4E, SE 1/4 of SW 1/4 of sec 35, elev. 1780 feet. West-facing rocky cut-bank of Dark Canyon Road 0.6 mile south of Big Bend Road/Parkhill. Mid-slope of canyon in mixed conifer forest. 545 Comment
  POM37804  Clarkia purpurea subsp. purpurea C. C. Bruce 57 Butte Chico Comment
  POM202653  Clarkia purpurea subsp. purpurea J. H. Morrison 1932-5-1 s.n. Butte Durham. Comment
  UCD104931  Clarkia purpurea subsp. quadrivulnera L. D. Gottlieb 1987-8-22 8753 Butte On Centerville Road, 1.8 miles S of Nimshew Road. Comment
  CHSC56557  Clarkia purpurea subsp. viminea L. P. Janeway 1991-6-1 3981 Butte Road-shoulder/top-of-fill of Dark Canyon Road 1.0 mi south of Big Bend Road/Parkhill. 512 Comment
  CHSC88061  Clarkia purpurea subsp. viminea R. D. Fischer 2004-5-30 187 Butte Northern Sierra Nevada, 4-5 airmiles n. of Paradise, and w. of upper Paradise Pines. Turn w. off Skyway Road on Nimshew Road and take the s. turn on Centerville Road (on older maps Humbug Road), ca. 3.0 miles s. of this junction. UTM: 10616846E 4407606N. 420 Comment
  SEINET10973133  Clarkia purpurea subsp. viminea Lowell Ahart, Peter Ahart 1984-5-28 Ahart 4650 Butte On a large road cutbank along Hwy 40, now called Dark Canyon Rd, ca. 2 mi E of Old Yankee Hill, ca. 16 mi NE of Oroville; Foothill Woodland; 450 m. 450 Comment
  CAS-BOT-BC164790  Clarkia rhomboidea H. Lewis; M. Lewis 1951-5-1 824 Butte Rd. from Oroville to Magalia, 1.65 mi. S. of Rd. to Paradise Comment
  CHSC59116  Clarkia rhomboidea L. P. Janeway 1991-6-1 3983 Butte West-facing cut-bank of Dark Canyon Road 2.4 mi south of Big Bend Road/Parkhill. 396 Comment
  CHSC70744  Clarkia rhomboidea L. P. Janeway 1993-6-9 4372 Butte Along Road 22N34 1.8 mi south of the 'low water crossing' of French Creek; east-facing slope above French Creek southeast of Swayne Hill. 621 Comment
  SD3273  Clarkia rhomboidea E. B. Copeland 1931-6-10 Butte Jonesville 1650 Comment
  UCD85105  Clarkia rhomboidea Dena Grossenbacher; Joel Smith 2009-6-22 1062 Butte 1.4 miles south of Arch Rock along Highway 70 next to the Feather River. 453 Comment
  CAS-BOT-BC164800  Clarkia rhomboidea L. P. Janeway 1987-5-7 2029 Butte Along Dark Canyon Road 1.0 mi south of Big Band Road/Parkhill 512 Comment
  RSA512848  Clarkia rhomboidea J. T. Howell 1967-6-22 42645 Butte Sierra Nevada: 3 miles northwest of Pulga Bridge, canyon of the Feather River North Fork. Comment
  POM38549  Clarkia unguiculata C. C. Bruce 1897-06 1854 Butte Little Chico. Comment
  CAS-BOT-BC439109  Claytonia exigua subsp. exigua A. A. Heller 1919-3-29 13094 Butte Feather River near Yankee Hill Comment
  CAS-BOT-BC439112  Claytonia exigua subsp. exigua Lowell Ahart 1982-5-8 3418 Butte About 1/2 mile south-west of the Forbestown Res., about 4 1/2 miles north-east of Forbestown 800 Comment
  UC1562475  Claytonia lanceolata Vernon Oswald and Lowell Ahart 1990-6-20 4306 Butte s side Philbrook Creek (between Philbrook Reservoir and Carr Mine; ca 0.5 mi w of the Butte-Plumas county line) 1920 Comment
  CHSC26737  Claytonia palustris M. S. Taylor 1977-7-15 1402 Butte Scattered creekside in shade, Butte Meadows, ca. 20 mi ne of Chico off Hwy 32. 1326 Comment
  CHSC56065  Claytonia palustris L. P. Janeway; R. A. Schlising 1988-7-16 3001 Butte Riparian strip along Willow Creek 1/2 mi northwest of Jonesville. 1508 Comment
  UC452686  Claytonia palustris Mrs. R. M. Austin Jul 1896 173 Butte Butte Meadows; Sutton House Comment
  SEINET10572701  Claytonia parviflora Mary Susan Taylor 1981-3-24 Taylor 3440 A Butte Two mile stretch along both sides of Feather River Hwy (70), just ne of Pulga to Cresta Powerhouse, ca. 20 mi ne of Oroville; granite gravels & soil; ca. 1700 ft. T23N R5E Pulga quad. 518 Comment
  CHSC60584  Claytonia parviflora subsp. grandiflora Vernon H. Oswald; Lowell Ahart 1993-4-19 5284 Butte Rattlesnake Creek Trail on a serpentine outcrop between Jordan Hill Rd. and Sawmill Pk. Lookout, ENE of Magalia. 740 Comment
  CHSC10749  Claytonia parviflora subsp. parviflora Lowell Ahart 1969-3-27 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC1381  Claytonia parviflora subsp. parviflora E. Dolittle 1929-3-15 Butte Bidwell Park. 60 Comment
  CHSC34767  Claytonia parviflora subsp. parviflora H. A. McLane 1980-4-25 17 Butte N of Ponderosa Way, Plumas Natl. Forest. 377 Comment
  CHSC37285  Claytonia parviflora subsp. parviflora M. S. Taylor 1982-5-2 4394 Butte Pulga serpentine outcrops, on n side of Hwy 70 at Pulga bridge ca 20 mi ne of Oroville. 487 Comment
  CHSC98971  Claytonia parviflora subsp. parviflora Lowell Ahart 2008-5-8 14718 Butte Below the high water line of Lake Oroville, about 300 yards south of the poor parking area, on the west side of McCabe Creek, about 3/4 mile southwest of the Enterprise Bridge, about 11 miles (air) east of Oroville. 259 Comment
  CHSC77711  Claytonia perfoliata subsp. perfoliata Tim Stofer 1997-4-20 18 Butte On the east side of the trail 150 ft from the head of the South Rim Trail off South Park Dr. in upper Bidwell Park. 76 Comment
  CAS-BOT-BC443704  Claytonia rubra Lowell Ahart 1982-6-4 3540 Butte 1 1/2 miles east of Camp 18, about 8 miles east of Feather Falls 1000 Comment
  CAS-BOT-BC443706  Claytonia rubra Lowell Ahart 1984-7-19 4743 Butte About 1 1/2 miles south-east of Bald Mountain, 3/4 mile west of Oak Point, about 4 miles north-east of Stirling City 1500 Comment
  CHSC56762  Claytonia rubra J. Monelo 1990-4-16 10 Butte Butte Meadows - Humboldt Rd ca 1.9 mi n of Hwy 32 facing rock outcropping ca 100 ft nw of Humboldt Rd. 1341 Comment
  CHSC11076  Collinsia heterophylla Lowell Ahart 1961-5-4 Butte Along Humbug Road, Chico. 152 Comment
  UCD123585  Collinsia heterophylla L. E. Hazeltine 1916-7-16 s.n. Butte Appleton. Comment
  CHSC44727  Collinsia tinctoria R. Banchero 1980-6-5 194 Butte Along Hwy 70 at its jct with the Feather River at the Rivers edge, ca 4.3 mi N of the jct of Pinkston Canyon Rd and Hwy 70. 487 Comment
  CHSC79571  Collinsia tinctoria G. F. Hrusa; E. Sandoval 1993-5-29 11134 Butte Feather River Canyon. Base of south-facing slope at corner of Hwy 70 and Pulga Rd. at bridge over Feather River. [Original lat./long. on label is '39 48 N; 121 37 W']. 800 Comment
  RSA719876  Collomia linearis Michael A. Vincent, K. Levings 2006-7-29 12899 Butte Along Rt. 32, ca. 23 miles south of junction with Rt. 36 Comment
  CHSC50342  Comandra umbellata subsp. californica Vernon Oswald; Lowell Ahart 1990-5-29 4261 Butte Northwest side of Humboldt Rd (to Butte Meadows), ca. 1.8 miles northeast of Lomo. 1380 Comment
  CHSC87557  Comandra umbellata subsp. californica R. D. Fischer 2004-4-11 60 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located along 10 Mile House Road where it parallels Chico Creek, creek side of rd. 228 Comment
  UCD149838  Consolida ajacis Harry A. George 1967-4-24 s.n. Butte Table Mt. Comment
  CHSC105792  Cordylanthus pilosus subsp. hansenii Lowell Ahart 2010-9-12 17150 Butte Below the high water line of Lake Oroville, about 150 yards north of the South Fork of the Feather River, about 50 yards east of Sucker Creek, about 1/4 mile (air) northwest of the Ponderosa Dam. 243 Comment
  CHSC25475  Cordylanthus pilosus subsp. hansenii L. Ahart 1977-6-16 1427 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC39062  Cordylanthus tenuis subsp. viscidus R. A. Schlising; R. Banchero, A. Ratcliff 1980-9-6 3984 Butte NE of Oroville, about 5 miles SW village of Feather Falls. Comment
  CHSC48987  Cordylanthus tenuis subsp. viscidus Vernon Oswald 1987-7-29 3154 Butte Hwy 32, 1.5 mi ssw of Lomo. 1146 Comment
  CHSC3311  Cornus florida M. Gregg 1966-4-13 65 Butte CSC campus behind the dining hall. Chico. Comment
  CAS-BOT-BC211985  Cornus nuttallii Helen M. Edwards 1917-5-1 s.n. Butte De Sabla Comment
  CHSC7079  Cornus nuttallii Mike Prather 1969-4-13 Butte 2.5 m on Feather Falls Trail, 22 mi e of Oroville. Comment
  SFV2622  Cornus nuttallii B. Fuller 1961-4-15 s. n. Butte Hillside west of Paradise California Reservoir. Comment
  UC600763  Cornus sericea subsp. sericea H. F. Copeland 1931-6-11 Butte by Scotch John Creek in Butte Creek Canyon Jonesville; Butte Creek Canyon, Scotch John Creek Comment
  SD7620  Cornus sessilis Mrs. R. M. Austin 1883-1 Butte Comment
  CHSC94162  Coronilla varia Lowell Ahart 2006-6-24 12862 Butte Disturbed area on the east side of the dirt road (Ponderosa Way), south of an intersection, a gated road goes southeast, on Cohasset Ridge, about 4 miles (air) northeast of Cohasset. 1113 Comment
  CDA24604  Corydalis caseana T. C. Fuller 1962-7-12 9204 Butte 0.2 mile east of Jonesville. 0 Comment
  SD1899  Corydalis caseana E. B. Copeland 1929-7-3 Butte Comment
  CHSC11913  Corydalis caseana subsp. caseana E. B. Copeland 1929-7-3 365 Butte Jonesville. 1500 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
  SEINET10478569  Corylus cornuta var. californica Mary Susan Taylor 1980-4-27 Taylor 2555 Butte T23N R3E nw sec 27. Paradise quad. Along Middle Butte Creek off of Little Butte Creek in Riparian Woodland, very shady, ca. 1.5 mi SE of Nimshew. With J.D. Jokerst. 610 Comment
  CHSC5959  Cotoneaster horizontalis M. MacArthur 1968-6-17 197 Butte SW end Life Science bld., ca. 10 ft. from bld., Chico State College Campus. 60 Comment
  CHSC102504  Cotoneaster lacteus Lowell Ahart 2009-5-30 15802 Butte On the south side of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 311 Comment
  CHSC106880  Cotula australis Lowell Ahart 2011-5-9 17353 Butte South side of Palm Avenue, about 2 miles (air) southeast of East Biggs. 29 Comment
  JEPS128723  Cotula coronopifolia Lowell Ahart 2017-4-22 21390 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles (air) south of Oroville. Comment
  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
  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
  SEINET260311  Crassula aquatica Lowell Ahart 1984-5-12 4604 Butte Peter Ahart Ranch ca. 2.5 mi NE of Honcut ca. 12 mi S of Oroville. Valley Grassland 50 Comment
  CHSC31653  Crassula connata L. Ahart 1973-3-16 177 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC65448  Crassula connata Vernon Oswald 1989-3-30 3729 Butte Upper Bidwell Park, Chico. Slightly nw of the North Rim Trail along an intermittent streamlet draining into Sycamore Creek. 274 Comment
  UC1594614  Crassula connata Lowell Ahart 1992-4-7 6742 Butte e side of Biggs Princeton Rd. and w. side of Southern Pacific R.R. in Biggs 30 Comment
  CAS-BOT-BC427958  Crassula tillaea Lowell Ahart 1973-4-15 s.n. Butte Sutter Buttes Region. Peter Ahart Ranch, Honcut 150 Comment
  JEPS115662  Crataegus laevigata Lowell Ahart 2009-5-30 15792 Butte On the east side of Big Chico Creek, about 30 yards south of the gate about 10 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 269 Comment
  CHSC21015  Croton setiger M. S. Taylor 1975-10-3 947 Butte Roadsides, ca. 1/4 mi n of the washout, between River Road and the Sacramento River, ca. 10 mi w of Chico. 36 Comment
  CHSC118498  Crucianella angustifolia L. P. Janeway 2016-5-9 11953 Butte Northern High Sierra Nevada. Plumas National Forest; upper north-facing slope above the South Fork Feather River arm of Lake Oroville, 0.4 km northwest of junction of Ponderosa Way and Road 19N19. 701 Comment
  CHSC51010  Crucianella angustifolia Lowell Ahart 1990-7-4 6550 Butte About 1/2 mile south-west of the Enterprise Bridge across Lake Oroville. 243 Comment
  HSC97072  Crypsis alopecuroides L. Ahart 2006-9-11 13302 Butte S edge of the N Fork of the Feather River, N side of Highway 70, about 1/8 miles W of the Poe Dam, about 3/4 mile NE of Pulga, about 21 miles (air) NE of Oroville 432 Comment
  CAS-BOT-BC190094  Crypsis schoenoides Lowell Ahart 1983-10-15 3892 Butte Sierra Nevada. North Honcut Creek, about 1 mile north and 2.75 miles east of Honcut. 50 Comment
  CHSC46978  Crypsis schoenoides Vernon H. Oswald 1989-9-23 4014 Butte Butte Community College where on the margin of the northeast wildlife pond located between Clear Creek and its West Branch. 91 Comment
  UC179681  Cryptantha affinis A. A. Heller 1914-6-22 11487 Butte near Butte Meadows; Little Summit Comment
  UC398945  Cryptantha affinis E. B. Copeland 1929-7-29 395 Butte Jonesville 1700 Comment
  SEINET10497263  Cryptantha affinis Lowell Ahart, Peter Ahart 1983-6-30 Ahart 4184 Butte T23N R4E ne sec 10. On east side of West Branch of Feather River, ca. 5 mi s of Stirling City. Yellow Pine Forest; 1150 m. 1150 Comment
  CHSC38271  Cryptantha flaccida Vernon Oswald 1983-5-21 520 Butte Upper Bidwell Park, Chico, on the north rim ca. 1.2 mi e of the power lines. Growing on the edge of a jeep trail. 359 Comment
  CHSC39027  Cryptantha flaccida Lowell Ahart 1984-5-18 4607 Butte Peter Ahart Ranch, about 1.5 mi n and 1.25 mi e of Honcut, and about 12 mi s of Oroville. 50 Comment
  SD240919  Cryptantha flaccida George K Helmkamp, E. A. Helmkamp 2012-4-14 18766 Butte Northwestern Sacramento Valley: entrance to Oroville Wildlife Area, 0.2 mile west of CA-70,near the Feather River (Palermo 7.5'Q) 46 Comment
  UC179503  Cryptantha flaccida A. A. Heller 1914-4-27 11325 Butte 8 mi n Oroville Comment
  SEINET12329571  Cryptantha flaccida L. Ahart, Ahart, P. 1984-1 4649 Butte on a large road cutbank along Hwy 40, now called Dark Canyon Rd, ca 2 mi E of Old Yankee Hill.. 450 Comment
  CHSC29388  Cryptantha intermedia R. A. Schlising; R. Banchero 1980-6-5 3644 Butte N of Lake Oroville along Hwy 70, s of the Pulga crossing of North Fork, Feather River. 609 Comment
  JEPS108983  Cryptantha intermedia Lowell Ahart 2006-6-9 12656 Butte On the north side of Bardees Bar Road, east of the large stream, about 1/10 mile north of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga 354 Comment
  CHSC3248  Cupressus Virginia Hagaman 1966-3-8 80 Butte Aymer J. Hamilton School grounds, Chico. Comment
  CHSC33581  Cupressus macnabiana M. S. Taylor 1981-4-8 3503 Butte N of logging landing site, just w of the power lines off logging rd, ca. 1/2 mi w of its jct with Ponderosa Way, ca. 5 mi n of its jct with Hwy 70 at Jarbo Gap. 883 Comment
  NY16721  Cupressus macnabiana C. B. Wolf 1934-10-5 6160 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
  UC1086220  Cupressus macnabiana L. Heckard and R. Bacigalupi 1951-8-7 3473 Butte 0.5 mi ne of Magalia 701 Comment
  SEINET10531460  Cupressus macnabiana Carl B. Wolf, E. R. Johnson 1934-10-5 Wolf 2122 Butte Sierra Neveda Foothills, at Magalia. Upper sonoran:- Digger Pines. Sun. Bright green serpentine. 700 Comment
  UCD126246  Cuscuta californica var. californica Lowell Ahart 1998-7-18 8042 Butte along Hurleton Swedes Flat Road, 1.5 miles (air) south of Hurleton, about 11 miles (air) southeast of Oroville. 487 Comment
  SBBG127994  Cuscuta occidentalis L. Ahart 2010-9-21 17232 Butte S side of poor dirt rd, ca. 1 mi (air) NE of Jones Meadow, ca. 2.5 mi (air) SE of Philbrook Reservoir 1899 Comment
  CHSC88163  Cymopterus terebinthinus var. californicus Lowell Ahart 2004-8-2 11334 Butte On both sides of the dirt County Road, between the Sky High Mine and Dresser Camp, about 2 miles (air) southeast of the Philbrook Reservoir Dam, about 7 miles (air) southeast of Butte Meadows. 1912 Comment
  CHSC38803  Cynodon dactylon Vernon Oswald 1983-6-18 708 Butte Upper Bidwell Park, Chico, in Lindo Channel between Five Mile Recreation Area and the flood-control gates. 79 Comment
  CHSC2424  Cynoglossum grande R. Carter 1965-3-15 166 Butte Found on bank above road on SE corner of intersection of Oroville-Forbestown Rd. and Swedes Flat Rd. ca. 10.5 mi. E of Oroville. 502 Comment
  SEINET10497513  Cynoglossum grande Mary Susan Taylor 1976-3-6 Taylor 1011 Butte Riparian Woodland along Macabe's Creek, ca. 50 ft E of Lumpkin Rd, ca. 1 mi NE of Forbestown Rd, ca. 12 mi E of Orovil le; shaded, wet, cool area. 244 Comment
  CAS-BOT-BC190373  Cynosurus John Thomas Howell 1980-5-26 53582 Butte Sierra Nevada. 2 miles northeast of Pulga Bridge, North Fork of Feather River. Comment
  CAS-BOT-BC190393  Cynosurus echinatus Lowell Ahart 1987-5-6 5555 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles southeast of Jarbo Gap. 271 Comment
  CHSC34198  Cyperus difformis J. D. Jokerst; L. Ahart 1981-9-26 1492 Butte Moist swale ca 110 m E of Sacramento River at the Bidwell River State Park (Chico Landing) ca 5.0 mi W of Chico. Comment
  CHSC37825  Cyperus difformis R. A. Schlising 1979-10-13 3503 Butte Along Sacramento River w of Chico, just n of Chico Landing Site in Bidwell River State Park. Comment
  CHSC66364  Cyperus difformis Vernon H. Oswald 1996-6-20 7832 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife parcel between 7 Mile Lane and the Sacramento River. Marsh at NE corner of Tract 3.1, Sanctuary II. 33 Comment
  CAS-BOT-BC114734  Cyperus difformis Forman Taylor McLean 1921-3-25 15 Butte A week abundant in rice fields, Nelson. Comment
  CAS-BOT-BC114739  Cyperus difformis Lowell Ahart 1986-11-9 5446 Butte Ca. 1/10 mi S of the clay burrow for Oroville Dam, 1/4 mi E of Larkin Rd, 36 Comment
  JEPS116031  Cyperus eragrostis Lowell Ahart 2009-6-30 15968 Butte On the east side of Ten Mile House Road, about 30 yards east of Big Chico Creek, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 234 Comment
  JEPS120017  Cyperus eragrostis Lowell Ahart 2012-10-28 18527 Butte On the south side of Big Chico Creek, about 50 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  SEINET191614  Cyperus eragrostis Lewis S. Rose 1939-6-11 39277 Butte 6 miles E of Honcut. 137 Comment
  UC589979  Cyperus eragrostis H. S. Yates 1936-8-14 6123 Butte 10 mi. s. Durham; Chico Quad. 30 Comment
  CAS-BOT-BC114596  Cyperus eragrostis Forman Taylor McLean 1921-9-25 s.n. Butte Weed in rice fields, Nelson. Comment
  POM313104  Cyperus eragrostis H. L. Mason, Verne Grant 1945-7-10 12634 Butte Along Butte Creek, north of Marysville Buttes, Grey Lodge Game Refuge, southern Butte County, Butte Sink Comment
  SEINET7581663 Image available Cyperus eragrostis E. B. Copeland 1903-7-27 3490 Butte Chico. Comment
  CHSC45126  Cyperus erythrorhizos Vernon Oswald 1987-7-8 3099 Butte Butte Creek Reserve, on the north side of Butte Creek east of the Skyway, east of Chico. 74 Comment
  JEPS103335  Cyperus erythrorhizos Lowell Ahart 2002-10-17 9997 Butte Bottom of a wash, between the gentle hills below the high water line of Lake Oroville, ca 1 1/2 miles S of Highway 162 (Oroville Quincy Highway), ca 3 miles (air) NE of Oroville Dam. 227 Comment
  UC1100413  Cyperus erythrorhizos Herbert L. Mason and Verne Grant 1946-8-14 13036 Butte canal near big pond by Sacramento Outing Club; Butte Sink Comment
  SEINET10938647  Cyperus erythrorhizos Mary Susan Taylor Taylor 836 Butte Bidwell Park, Chico. Comment
  CHSC94781  Cyperus flavescens Lowell Ahart 2006-10-8 13429 Butte Mud flat, near a large gravel bar, east side of the North Fork of the Feather River, just east of where the river flows into a pool, on the west side of Highway 70, about 1/2 mile north of the Cresta Power House. 609 Comment
  JEPS110330  Cyperus flavescens Lowell Ahart 2006-10-8 13429 Butte Mud flat, near a large gravel bar, east side of the North Fork of the Feather River, just east of where the river flows into a pool, on the west side of Highway 70, about 1/2 mile north of the Cresta Power House 609 Comment
  UCR146290  Cyperus flavicomus Ellen Dean, Et al. 2001-8-20 850 Butte Biggs UC Field Station, N of town of Biggs, west of jct. of Hwys 99 and 162, south side of Hamilton road, west of jct. with Riceton Hwqy, W side of RR tracks; along dirt road that is the extension of Hamilton rd. Comment
  JEPS98262  Cyperus fuscus Lowell Ahart 2000-7-23 8603 Butte 12 air mi SW of Chico (near a large pond on E side of Sacramento River, NW of Parrott Landing, 1 mi SE of Ordbend) 32 Comment
  CDA42918  Cyperus iria L. Ahart 2012-8-6 18415 Butte On the west side of Richvale South Highway, about 1 1/2 miles south of Richvale. Comment
  CAS-BOT-BC113847  Cyperus niger var. capitatus Lowell Ahart 1982-8-19 1424 Butte Ca. 1 mi N and 3 mi E of Honcut, Peter Ahart Ranch. 50 Comment
  CHSC113534  Cyperus squarrosus Lowell Ahart 2014-9-23 19871 Butte Near a small drainage, on the northeast part of Horseshoe Lake, about 100 yards northeast of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. 88 Comment
  CHSC55606  Cyperus squarrosus L. P. Janeway; C. A. Janeway 1986-10-4 1904 Butte Gravel bar along Butte Creek ca 2 1/2 mi east of Skyway. 45 Comment
  CHSC65353  Cyperus squarrosus Lowell Ahart 1995-10-3 7674 Butte East of the dirt road, along a small branch of Willow Creek, about 1/2 mile west of Humbug Summit. 1981 Comment
  JEPS119891  Cyperus squarrosus Lowell Ahart 2012-6-5 18161 Butte On the bottom of Beatson Hollow, about 1 1/4 miles northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 6 miles (air) north of Oroville. Comment
  UC478548  Cyperus squarrosus E. B. Copeland 1931-7-17 612 Butte Jonesville 1700 Comment
  SD405  Cyperus squarrosus E. B. Copeland 1931-7-17 Butte Jonesville; abundant on drying bottoms of vernal pools. 1700 Comment
  CHSC37104  Cyperus strigosus L. Ahart 1982-9-12 3796 Butte On the banks of North Honcut Creek, Peter Ahart Ranch, 1 1/4 mi n and 3 mi e of Honcut. 50 Comment
  CHSC68419  Cyperus strigosus L. P. Janeway 1986-10-19 1941 Butte Table Mountain Road about 0.7 mi northwest of Garden Drive, where it is right at the base of the railroad fill and overlooking the Thermalito Forebay. 91 Comment
  CHSC68420  Cyperus strigosus L. P. Janeway 1988-6-29 2904 Butte Spring where Crouch Ravine fades into Coon Ridge; 1/4 mi south of the Skyway, 2.9 mi east of the Skyway bridge over Butte Creek. 170 Comment
  UCD169396  Cyperus strigosus L. P. Janeway 2001-6-13 7168 Butte Sacramento Valley. On east side of the Sacramento River about 1.8 km southeast of Ord Ferry Road bridge. 29 Comment
  UC1191380  Cypselea humifusa Malcolm A. Nobs, S. Galen Smith 1949-7-29 1088 Butte on road from Biggs to Princeton (Butte Creek); Butte Creek Comment
  SEINET3166413  Cystopteris fragilis P. J. Alexander 2009-5-27 1051 Butte Western foothills of the northern Sierra Nevada, east side of the Feather Falls trail loop, +-200 yards south of the bridge over Frey Creek, 3.3 miles SE of Bald Rock Dome, 17.8 miles ENE of Oroville, Plumas National Forest. 613 Comment
  CHSC6079  Danthonia unispicata B. Wilson 1968-4-19 164 Butte 2 mi s of Cherokee, on Table Mountain. Comment
  SEINET10546583  Datura meteloides Lowell Ahart 1985-9-14 Ahart 5167 Butte On dry red soil on the east side of a building, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. Comment
  SEINET10536231  Delphinium Mary Susan Taylor 1981-4-28 Taylor 3568 C 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
  CHSC24644  Delphinium gracilentum S. Deaton 1976-4-23 34 Butte 1 3/4 mi n of Feather Falls parking lot and 20 ft down s slope of Falls trail. 853 Comment
  CAS-BOT-BC8601  Delphinium hansenii Mary E. Wall 1942-6-26 s.n. Butte Paradise Valley Comment
  POM253331  Delphinium hansenii A. A. Heller 1938-5-28 15110 Butte 2.5 miles from Oroville on the Feather River Hwy. Comment
  CAS-BOT-BC8565  Delphinium hansenii E. B. Copeland 1899-5-28 s.n. Butte Marysville Comment
  CHSC104822  Delphinium hansenii subsp. hansenii Lowell Ahart 2010-6-1 16757 Butte On the south side of the Guardians Trail or South Rim Trail, under the power lines, upper Bidwell Park, about 2 miles (air) east of Chico. 144 Comment
  CHSC44423  Delphinium hansenii subsp. hansenii Lowell Ahart 1988-6-29 6086 Butte Along Bloomer Hill Road (Ponderosa Way), about 1 1/2 miles west of Oroville Quincy Highway. 457 Comment
  CHSC31843  Delphinium hesperium L. Ahart 1978-5-24 1743 Butte Near North Honcut Creek. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC81545  Delphinium nudicaule Petra M. Lee 2000-4-19 Butte Chico. Upper Bidwell Park at Green Gate, 6.8 mi past Bruce Rd on Hwy 32. 243 Comment
  CAS-BOT-BC8026  Delphinium nuttallianum E. B. Copeland 1930-6-25 416 Butte Jonesville 1550 Comment
  CAS-BOT-BC8027  Delphinium nuttallianum Herbert Faulkner Copeland 1929-6-12 1211 Butte Jonesville, near north Willow Creek 1524 Comment
  CAS-BOT-BC121616  Delphinium patens subsp. patens A. A. Heller 1938-4-14 15036 Butte Slope on Table Mountain, near the upper end of a ravine 304 Comment
  CHSC2464  Delphinium patens subsp. patens P. Delaplane 1965-3-30 27 Butte Along W. side of Cohasset Rd. 1/4 mi. S.W. of intersection Cohasset Rd. and Keefer Rd. 213 Comment
  CHSC38164  Delphinium patens subsp. patens Vernon Oswald 1983-3-13 149 Butte Upper Bidwell Park, Chico, near Yahi Trail about 800 ft e of Parking Area L at Diversion Dam. Near the top of a cliff. 121 Comment
  CHSC56777  Delphinium patens subsp. patens J. D. Jokerst 1981-4-2 1167 Butte Table Mountain; south of Cherokee Road where it intersects the east edge of the section, on east side of the mountain. 396 Comment
  CHSC83898  Delphinium patens subsp. patens Lowell Ahart 2003-4-15 10100 Butte Slopes of Beatson Hollow, southwest of drainage entering Beatson Hollow, about 1 1/4 miles northwest of the iron gate and fence, northwest of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 284 Comment
  CAS-BOT-BC121619  Delphinium patens subsp. patens Mrs. C. C. Bruce 1897-4-1 1914 Butte Forest Ranch Comment
  CHSC53298  Delphinium variegatum R. J. Goedl 1976-4-20 1 Butte Ca. 6.4 mi se of Chico on Skyway, 25 yds s of Highway. Field. 213 Comment
  CHSC76957  Delphinium variegatum Margie Collins 1894-5-1 Butte Chico. Comment
  CHSC90040  Delphinium variegatum Rebecca L. Hill 1990-4-8 11 Butte Ca. .5 mi se of jct of Oroville Chico Hwy and Mesa Road. W side of Oroville Chico Hwy, ca. 6 mi se of Chico. 47 Comment
  CAS-BOT-BC16981  Delphinium variegatum subsp. variegatum A. A. Heller 1902-5-13 5520 Butte Near Clear Creek Comment
  CAS-BOT-BC16976  Delphinium variegatum subsp. variegatum Ira L. Wiggins 1925-3-25 1414 Butte Three and one half miles east of Durham on State Land Colony highway. Comment
  CHSC101116  Dendromecon rigida Zachary Garcia 2008-4-8 Butte Dark Canyon Rd. 591 Comment
  SEINET10973508  Dentaria tenella var. palmata Mary Susan Taylor 1979-3-31 Taylor 1970 Butte On property belonging to Deanne Lickey; along Ishi Trail Road, ca. 0.5 mi NE of Concow Road and Lake Concow, ca. 25 mi N of Oroville; Yellow Pine Forest; granite soils. 671 Comment
  CHSC103948  Deschampsia danthonioides Lowell Ahart 2010-5-14 16643 Butte On the west side of the old Humboldt Road, Disc Golf Area, about 150 yards north of the entrance to the Disc Golf Area, about 40 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 395 Comment
  HSC41096  Deschampsia danthonioides J. P. Smith, J. O. Sawyer 1973-4-14 6052 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  RSA424685  Deschampsia danthonioides Aaron Liston, M. A. Blumler 1987-4-24 658 -8 Butte Table Mountain, N of Oroville on Cherokee Road. 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
  UCD80540  Deschampsia danthonioides CNPS SN Foothill Team 2005-3-31 SNFN 0073 c Butte CDFG North Table Mountain Wildlife Area, in the North Table Mountain complex, in the middle and eastern portion of the southern-most table. 310 Comment
  SEINET10524175  Deschampsia danthonioides M. E. Banning 1969-4-18 Banning 84 Butte Annual hairgrass. Table Mt., 1/2 mi. S. junction to Ore. City, then W across mt. for approx. 1/2 mi. 488 Comment
  CAS-BOT-BC201740  Deschampsia elongata Lowell Ahart 1977-6-16 s.n. Butte Peter Ahart Ranch, Honcut. Near North Honcut Creek 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
  JEPS116079  Deschampsia elongata Lowell Ahart 2009-5-23 15737 Butte On the east bank of Big Chico Creek, on the west side of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 234 Comment
  SEINET10508569  Deschampsia elongata Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4073 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
  JEPS106236  Dianthus armeria subsp. armeria Lowell Ahart 2004-7-11 11223 Butte On the southeast edge of Paradise Lake, about 3/4 mile northeast of the picnic area, about 1 mile northeast of Paradise Dam, about 4 miles (air) southwest of Stirling City 814 Comment
  CAS-BOT-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
  SEINET10508815  Dichanthelium lanuginosum Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4138 Butte T20N R5E se/ne sec 10. Along edge of East Fork Canyon Creek, near Ponderosa Way (Big Ridge Rd), ca. 14 mi ne of Oroville. Foothill Woodland; 500 m. 500 Comment
  UCD139185  Dichelostemma capitatum Craig Martz 1982-3-16 31 Butte Along State Route 70, 1 mile north of intersection with Palermo road, south of Oroville. 45 Comment
  JEPS48317  Dichelostemma multiflorum Paul C. Hutchison with J. K. Wright and R. Bacigalupi 1963-6-1 2690 Butte w side Pulga Bridge; North Fork of Feather River 472 Comment
  SD111968  Dichelostemma multiflorum Barbara Ertter, Lowell Ahart, Jeffrey Strachan 1980-5-6 3271 Butte Peter Ahart Ranch, ca. 2I(c) miles north-northeast of Honcut, between Oroville and Marysville. Dried vernal pool previously plowed as grainfield, now reverted, very rocky. 29 Comment
  SEINET232461  Dichelostemma multiflorum Margaret J. Williams, Wayne Roderick 1984-5-25 84- 22 -4 Butte Magalia near Skyline road to Paradise. 168 Comment
  SEINET3243527  Dichelostemma multiflorum Carl B. Wolf 1937-1 8781 Butte Sierra Nevada Foothills, 2 1/2 mi. SE of Oroville on road to Wyandotte. 91 Comment
  UC203548  Dichelostemma multiflorum A. A. Heller 1914-5-19 11421 Butte 8 mi n Oroville (near Table Mountain) Comment
  SEINET10472710  Dichelostemma multiflorum Mary Susan Taylor 1981-4-5 Taylor 3488 Butte T21N R4E se sec 2; Berry Creek quad. E side of Dark Canyon Rd, 2.2 mi s of its jct with Big Bend Rds, ca. 3 air mi s of Jarbo Gap on Hwy 70, n of Oroville. Steep rock wall; 1400 ft. 427 Comment
  SEINET12053816  Dichelostemma multiflorum I. Klockenbaum 5 s.n. Butte no further locality Comment
  SEINET12053817  Dichelostemma multiflorum Unknown 1936-1 13338 Butte Mud Creek near Chico Comment
  CHSC44640  Dichelostemma volubile Cathy Young 1988-4-24 15 Butte Ca 5.5 mi ne of Chico and 30 yds se of Highway 32. 256 Comment
  UC143025  Dichelostemma volubile Mrs. R. M. Austin May 1896 836 Butte Iron Canyon Comment
  HSC97055  Digitaria sanguinalis L. Ahart 2004-8-30 11398 Butte South side of O'Brien Rd., about 1 1/2 miles (air) southeast of Gridley. 28 Comment
  UCD64122  Digitaria sanguinalis A. A. Heller 1914-6-2 11476 Butte 8 miles north of Oroville. Comment
  CHSC6615  Dioscorea M. MacArthur 1968-6-17 305 Butte Location: SE yard of Building U, on Chico State College campus. 60 Comment
  CHSC44753  Diplacus douglasii R. Banchero 1980-3-9 59 Butte Ridge above Horseshoe Lake in upper Bidwell Park. 195 Comment
  CAS-BOT-BC150505  Diplacus grandiflorus A. A. Heller 1914-5-18 11407 Butte Between Chico and Forest Ranch, 14 miles from Chico; West slope of the Sierra near Forest Ranch 609 Comment
  CHSC44762  Diplacus grandiflorus R. Banchero 1980-5-12 151 Butte Along Hwy 70, 1.7 mi N of Jarbo Gap, 3.6 mi SW of the jct of Hwy 70 and the Feather River. 658 Comment
  CAS-BOT-BC153207  Diplacus kelloggii L. P. Janeway 1993-5-20 4349 Butte Swayne Hill. South-facing road cutbank overlooking lower French Creek 746 Comment
  SEINET8399955  Diplacus kelloggii K. L. Chambers 1987-4-29 5348 Butte Hwy. 70, along the Feather River above Lake Oroville, at highway bridge crossing the river at Pulga; on roadside flat. Comment
  CAS-BOT-BC153334  Diplacus layneae Clarence R. Quick 1952-6-25 52 -68 Butte Ridge - top, 21.5 miles from Chico on Deer Creek Road Comment
  CAS-BOT-BC153339  Diplacus layneae Lowell Ahart 1989-5-28 6292 Butte South of Oregon Gulch Road, about 1/2 mile north of the Cemetery, about 1 1/4 miles west of Rocky Point, about 10 miles east and 3 miles north of Oroville 335 Comment
  CHSC1801  Diplacus tricolor H. Summers; L. Oliver, D. Sloan 1929-4-17 Butte Rifle Range near Golf Course. 76 Comment
  CAS-BOT-BC136236  Dodecatheon alpinum A. A. Heller 1915-6-11 11960 Butte Butte Meadows in the Sierra Nevada 1219 Comment
  CHSC13897  Dodecatheon clevelandii subsp. patulum J. F. Goodwin 1972-3-4 248 Butte 0.3 mi e on Neal Road from Hwy 99 on n side of road. Comment
  CHSC67288  Dodecatheon clevelandii subsp. patulum James D. Jokerst 1984-3-20 1952 Butte Peter Ahart Ranch just W of the North Fork Honcut Creek. Comment
  SEINET10449646  Dodecatheon jeffreyi Mary Susan Taylor 1978-6-24 Taylor 1646 Butte Cherry Creek meadow, on S side of Old Humboldt Road, ca. 4 mi E of Butte Meadows; Montane Meadow in Yellow Pine Forest. 1524 Comment
  CHSC31869  Dopatrium junceum L. Ahart 1974-7-20 555 Butte Peter Ahart Ranch, Honcut. 45 Comment
  POM68175  Downingia bicornuta C. C. Bruce 1897-04 1903 Butte [No location data on label] Comment
  SEINET12319544  Downingia bicornuta Unknown 1980-1 18 Butte N of Chico. T23N, R1W, Sec. 4. (Richardson Spgs. NW quad, 7.5') 58 Comment
  CHSC109728  Downingia bicornuta var. bicornuta B. Castro 2006-5-25 1532 Butte Sacramento Valley. Ca 8 mi SE of Chico, ca 0.5 mi E of Hwy 99 0.4 mi NE of its jcn with Durham-Pentz Rd. By pond next to E-W ranch road along transmission lines through flt grasslands with intermittent stream (unnamed tributary to Hamlin Ck). 56 Comment
  CHSC42257  Downingia cuspidata Lynda Sterling 1986-4-15 15 Butte 11 mi n of Chico, sw of jct of Broyles Road and Hwy 99E. Comment
  CHSC87196  Downingia cuspidata Lowell Ahart 2004-4-4 10725 Butte Bottom of a vernal pool, about 1/4 mile east of Wilber Road, east of the high hill crossed by Wilber Road, pasture, about 3 miles (air) west of Thermalito. 48 Comment
  UCD149944  Downingia insignis TBS 1967-5-9 s.n. Butte Gray Lodge. Comment
  UC1562499  Downingia ornatissima Barbara Ertter with Lowell Ahart 1986-4-13 5893 Butte ca 2 air mi nne Honcut (between Oroville and Marysville, Peter Ahart Ranch) 30 Comment
  UCD80194  Downingia ornatissima CNPS SN Foothill Team 2005-4-13 SNFN 0120 Butte City of Chico, Chico Municipal Airport, 20 m N of fence across SE border of accessible area, about half the distance down paved road. 62 Comment
  POM305786  Downingia ornatissima C. C. Bruce 1897-04 1903 Butte [No location data on label] 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
  CHSC96841  Draperia systyla Lowell Ahart 2007-5-29 13932 Butte On the east side of Bald Rock Dome, along the Dome Trail, trail leads to the Middle Fork of the Feather River, about 1 3/4 miles by the trail from the trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Big Bald Rock, about 16 miles (air) northeast of Oroville. 585 Comment
  CHSC45270  Drosera rotundifolia Vernon Oswald 1984-7-12 1568 Butte Skyway 1.4 mi s of Inskip. ... Field redacted by CHSC, contact the data manager for more information 1402 Comment
  UCD99547  Drosera rotundifolia Barry Rice 2005-7-3 BR 050702 Butte in meadow draining into Snag Lake, on the southeast side of Summit Road. 1770 Comment
  UC114426  Drymocallis hansenii Mrs. R. M. Austin July, 1896 Butte Colby Comment
  CAS-BOT-BC70853  Dryopteris arguta Lowell Ahart 1990-3-19 6417 Butte on the south side of Pacific Heights Road, about 3 1/2 miles southwest of Oroville 33 Comment
  CAS-BOT-BC70857  Dryopteris arguta Lowell Ahart 1980-9-10 2632 Butte 1 mile northeast of Milsap Bar 900 Comment
  CDA32023  Dryopteris arguta L. Ahart 2009-8-2 16288 Butte Below the rim, along a small drainage, west of the Guardian Rock Trail, about 30 yards northwest of Pine Trail, about 3/8 mile (air) southwest of the intersection of Ten Mile House Road and Highway 32, Upper Bidwell Park, about 10 miles northeast of Chico. Comment
  CHSC101827  Dryopteris arguta Lowell Ahart 2009-5-23 15763 Butte Below the rim, south of a small drainage, about 40 yards west of Guardians Trail, about 100 yards northeast of Pine Trail, Upper Bidwell Park, about 3/8 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  CHSC29001  Dryopteris arguta M. S. Taylor 1980-3-8 2376 Butte Pulga community, ca. 1 mi ne of Hwy 70, ca. 28 mi ne of Oroville. 487 Comment
  CAS-BOT-BC70859  Dryopteris arguta Wayne D. Dakan 1974-4-15 s.n. Butte near Pulga Comment
  CAS-BOT-BC536731  Duchesnea indica Lee Richardson 1939-6-3 s.n. Butte Established at Richardson's Springs Comment
  CHSC66666  Dysphania ambrosioides Vernon H. Oswald 1996-7-17 8064 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. 30 Comment
  CAS-BOT-BC197103  Echinochloa crus-galli Lowell Ahart 1984-9-17 4792 a Butte Peter Ahart Ranch, about 2 1/4 miles north and 1/4 mile east of Honcut, about 12 miles south of Oroville 50 Comment
  CHSC27245  Echinochloa crus-galli P. Moyer 1972-6-5 216 Butte CSUC Campus. E of L.S. Bridge, s bank of Chico Ck. Comment
  UCD41384  Echinochloa crus-galli E. Dean; with J. Ditomaso and E. Healy 2001-8-20 855 Butte Biggs UC Field Station. North of town of Biggs, W of jct of Hwys 99 and 162. North side of Hamilton Road, ca. 1/8 mile E of jct with Riceton Hwy. Along second north-south running dirt road leading N into rice fields, at intersection with first east-west running dirt road, corner of rice field. 30 Comment
  SEINET10934804  Echinochloa crus-galli Mary Susan Taylor 1975-10-3 Taylor 931 Butte At bridge over Little Chico Creek on River Road, ca. 10 mi W of Chico; Ripar ian Woodland disturbed area. 37 Comment
  JEPS76251  Echinochloa muricata W. L. Jepson 1939-8-17 19464 Butte Feather River Bottom near Oroville; Feather River bottom 45 Comment
  SEINET239723 Image available Echinochloa oryzicola E. Dean, E. Healy 2001-8-20 854 Butte Biggs UC Field Station Comment
  SEINET4568167  Echinochloa oryzicola var. mutica B. Crampton 1963-9-9 6887 Butte 5 miles northwest of Biggs, Biggs Rice Experiment Station Comment
  JEPS120900  Elatine californica Lowell Ahart 2013-6-5 18723 A Butte About 30 yards N of Lower Honcut Road, about 1.75 miles W of Honcut. Comment
  CHSC30983  Elatine rubella M. S. Taylor 1978-7-22 1850 Butte On se corner of Richvale East Rd and Erickson Rd, Richvale. 30 Comment
  SEINET13710444  Eleocharis acicularis Lowell William Ahart, Lowell William Ahart 2000-1 8576 Butte 4 Mi. NE of Feather Falls (T20N, R7E, sec 4, NE 1/4) 4000 Ft. 1219 Comment
  CAS-BOT-BC113641  Eleocharis acicularis var. acicularis Lowell Ahart 1980-9-8 2594 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC45168  Eleocharis bella Lowell Ahart 1984-5-7 4591 Butte Near Kunkle Creek and a new road, about 1/2 mile north of Kunkle Reservoir, about 2 mles south of Paradise. 548 Comment
  CHSC78287  Eleocharis bella Lowell Ahart 2000-7-11 8577 Butte Seeps, on the sides of a dirt road, about 100 yards north of Lumpkin Ridge Road, upper west branch of Know-nothing Creek, about 1 mile southwest of the intersection of Lumpkin Ridge Road, road to Fall River, and the County Road, about 4 miles (air) northeast of Feather Falls. 1219 Comment
  SD425  Eleocharis bella E. B. Copeland 1929-7-28 Butte Jonesville 1500 Comment
  UC569530  Eleocharis bella H. S. Yates 1936-8-13 6102 Butte Butte Meadow 1341 Comment
  CHSC11330  Eleocharis macrostachya Lowell Ahart 1969-9-9 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC68435  Eleocharis macrostachya L. P. Janeway 1987-5-7 2017 Butte Bottom of Dead Horse Slough draining the California Park lake, just west of California Road and about 300 ft north of Hwy 32. 74 Comment
  CAS-BOT-BC113213  Eleocharis parishii Copeland 1903-5-30 3280 Butte Chico Comment
  RSA724860  Eleocharis quadrangulata L. P. Janeway 2006-7-19 8816 Butte Waterfowl brood pond on shallow arm of Thermalito Afterbay, 225 m east of Wilbur Road, 2.1 km south of Hwy. 162. NAD83. 41 Comment
  CHSC78311  Eleocharis quinqueflora Lowell Ahart 2000-7-7 8555 Butte Small seep just west of the bridge across Fall River, on the north side of Fall River, about 3 miles north of Lumpkin Ridge Road, about 5 miles (air) northeast of Feather Falls. 1036 Comment
  SEINET3441887  Eleocharis quinqueflora Unknown 2000-7-7 8555 Butte Dallas, Dallas, about 8 miles east, Sunnydale, about 4.5 miles south of highway 635, Tain east Boulevard 1030 Comment
  SEINET7587007 Image available Eleocharis quinqueflora Lowell Ahart 2000-6-29 8542 Butte On the northwest side of Concow Road at Flea Meadow, about 1/2 mile west of Flea Mountain, about 3 1/2 miles (air) north of Concow Reservoir, about 5 miles (air) east of Magalia. 1036 Comment
  SEINET13709637  Eleocharis radicans Lowell William Ahart, Lowell William Ahart 2000-1 8677 Butte Feather River, 1/2 Mi. W of Pacific Heights Rd., Oroville Wildlife Area, 3.3 Mi. SW Oroville (T19N, R3E, S 34, SE 1/4) 140 Ft 43 Comment
  CHSC56639  Elymus caput-medusae J. Lund 1980-4-18 Butte 0.9 mi east of Hicks Lane on the south side of Keefer Road, ca 50 ft from the edge of the road. 91 Comment
  CHSC101797  Elymus elymoides subsp. californicus Lowell Ahart 2009-5-15 15683 Butte About 10 yards east of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 235 Comment
  CHSC32760  Elymus glaucus J. D. Jokerst 1981-4-10 1286 Butte Top of North Table Mt, W edge ca. 150 met N of Cherokee Rd where it intersects the W edge of Mt. 335 Comment
  CHSC43204  Elymus glaucus Robert Banchero 1981-7-19 613 Butte Big Crane Valley. Meadow. 1584 Comment
  CHSC65611  Elymus glaucus subsp. jepsonii L. P. Janeway 1995-7-27 4878 Butte Top of Jackson Ranch Ridge, along Road 21N25Y ca 0.6 mi east of the western end of the ridge. 1143 Comment
  UCD62442  Elymus multisetus John Thomas Howell 1962-6-15 37528 Butte Magalia. 731 Comment
  JEPS94566  Elymus stebbinsii Lowell Ahart 1997-7-11 7744 Butte road cut on n side of dirt road se Cold Creek (about 2 air mi sw of Bald Mountain, about 9 mi by road from Stirling City, or about 2 air mi ne of Stirling City) 1219 Comment
  SEINET6631140 Image available Epilobium angustifolium subsp. circumvagum E. B. Copeland 1930-1 428 Butte Jonesville 1600 Comment
  POM219494  Epilobium brachycarpum H. F. Copeland 1928-8-29 404 Butte Neighborhood of Jonesville, valley of Butte Creek. Comment
  RSA458688  Epilobium brevistylum Louis C. Wheeler 1928-8-21 413 Butte Neighborhood of Jonesville; swamp near head of Willow Creek 1524 Comment
  CHSC31764  Epilobium campestre L. Ahart 1978-6-8 1772 Butte On bottom of small vernal pools and swales. Peter Ahart Ranch, Honcut. 50 Comment
  JEPS95175  Epilobium campestre Vernon H. Oswald and Lowell Ahart 1996-5-27 7653 Butte U.S. Fish & Wildlife Service parcel between 7 Mile Lane and the Sacramento River (Sacramento River National Wildlife Refuge, Llano Seco Unit, at s end of Tract 2, Sanctuary II); Sacramento R. National Wildlife Refuge, Llano Seco Unit 33 Comment
  SBBG126101  Epilobium campestre L. Ahart 2012-6-5 18166 Butte strand of the reservoir, N of Beatson Hollow, ca 1.75 mi NW of the iron gate on N side of Cherokee Rd, N Table Mtn, ca 6 mi N of Oroville 295 Comment
  CHSC84897  Epilobium canum subsp. latifolium Gavin Blosser 2003-10-13 Butte Northern Sierra Nevada Foothills. Along the south side of Thermalito Diversion Pool 0.8 mi west of the base of Oroville Dam. Between the old railroad grade/horse trail and the Pool. 70 Comment
  UCD105783  Epilobium ciliatum subsp. ciliatum L. E. Hazeltine 1916-7-24 s.n. Butte Chico. Comment
  CHSC113487  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2014-7-13 19653 Butte East part of a large wet meadow (some bog), about 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  UC1122517  Epilobium ciliatum subsp. glandulosum P. L. Johannsen 1936-7-17 940 Butte 3 mi se Butte Mdws.; Lassen National Forest, Paynes Creek Quadrangle Comment
  SEINET9070861 Image available Epilobium ciliatum subsp. glandulosum E. B. Copeland 1929-1 388 Butte Jonesville 1500 Comment
  CHSC115155  Epilobium densiflorum Lowell Ahart 2015-6-6 20203 Butte 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
  JEPS87376  Epilobium glaberrimum subsp. glaberrimum Lowell Ahart 1993-7-22 7091 Butte e side of campground rd about 1/4 mi nw bridge across Fall River (about 6 air mi ne of Feather Falls); Fall River 1036 Comment
  POM213943  Epilobium hallianum H. F. Copeland 1934-7-9 s.n. Butte Region of Jonesville, near the source of Butte Creek 1829 Comment
  CHSC105809  Epilobium hornemannii subsp. hornemannii Lowell Ahart 2010-9-21 17213 Butte About 70 yards east of the poor dirt road, about 80 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1917 Comment
  UC600551  Epilobium hornemannii subsp. hornemannii E. B. Copeland Butte Jonesville Comment
  CHSC109228  Epilobium minutum Robert Fischer 2012-6-17 1060 Butte Cascade Range 45 minutes east of Chico off the north side of Humboldt Road between Lomo and Butte Meadows. 1380 Comment
  CHSC32842  Epilobium minutum William Askea 1981-4-22 13 Butte Ca. 100 m w of Butte Creek and 1.2 km n of Magalia Reservoir, 2.5 km n of Magalia. 730 Comment
  CHSC93455  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
  JEPS115564  Epilobium torreyi Lowell Ahart 2009-5-23 15755 Butte Upper Bidwell Park, about 10 miles northeast of Chico, about 1/4 mile west of the interection of Highway 32 and Ten Mile House Road, on east side of Ten Mile House Road, just northeast of Guardians Trail 381 Comment
  UC873167  Epilobium torreyi A. A. Heller 1914-5-11 11388 Butte 8 mi n Oroville (in a field below the Quercus Douglasii belt) Comment
  CHSC109673  Epipactis gigantea Lowell Ahart 2012-7-5 18277 Butte On the south edge of Big Chico Creek, at Table 11, east of the Deer Pen, Lower Bidwell Park, Chico. 74 Comment
  JEPS119721  Epipactis gigantea Lowell Ahart 2012-7-5 18277 Butte On the south edge of Big Chico Creek, at Table 11, east of the Deer Pen, Lower Bidwell Park, Chico. Comment
  CAS-BOT-BC56941  Equisetum arvense Alice Eastwood 1912-6-15 s.n. Butte Deer Park, Lake Tahoe Region Comment
  UC398880  Equisetum hyemale subsp. affine E. B. Copeland 1929-7-6 330 Butte Jonesville Comment
  SEINET10834139  Equisetum hyemale subsp. affine Mary Susan Taylor 1983-3-13 Taylor 5244 Butte T23N R5E se sec 31. Pulga quad. Community of Pulga, off n side of Hwy 70, ca. 20 mi ne of Oroville. l600 ft. 488 Comment
  UC1563256  Eragrostis hypnoides Lowell Ahart 1990-9-30 6599 Butte below Canyon Creek Bridge across Lake Oroville (along the edges of Canyon Creek); Lake Oroville, Canyon Creek 228 Comment
  CHSC41971  Eragrostis pectinacea var. pectinacea Lowell Ahart 1986-11-7 5428 Butte In a prune orchard, east of the Feather River, north of the Oroville Gridley Highway, about 3 miles east of Gridley. 28 Comment
  CHSC97418  Eragrostis pectinacea var. pectinacea Robert Fischer 2006-6-18 1022 Butte Chico. Within upper Bidwell Park in the City of Chico. 60 Comment
  UCD65676  Eragrostis pilosa var. pilosa L. Ahart 1977-8-14 1552 Butte Peter Ahart Ranch, Honcut. Valley Grassland. 15 Comment
  CHSC117805  Ericameria arborescens L. P. Janeway 2016-9-15 12173 Butte Northern High Sierra Nevada. Plumas National Forest; about 30 m northeast of Old Forbestown Road, 0.6 kim north of Forbestown Road. 860 Comment
  CHSC108596  Erigeron canadensis L. P. Janeway 2011-10-20 10782 Butte Sacramento Valley. South end of Chico; along west side of Hwy 99 0.6 km south of Skyway/East Park Ave and 0.3 km south of Comanche Creek. 66 Comment
  POM55488  Erigeron divergens A. A. Heller, H. E. Brown 1902-5-6 s.n. Butte Berry Canyon (Near Clear Creek) Comment
  UC127750  Erigeron inornatus var. inornatus Miss Kate Conger 1907-1-1 Butte Brush Creek Comment
  UC426985  Erigeron inornatus var. inornatus E. B. Copeland 1930-8-6 490 Butte Jonesville 1550 Comment
  RSA774145  Erigeron lassenianus L. Ahart 2010-9-21 17227 Butte South side of a poor dirt road, about 1 air mile NE of Jones Meadow, about 2.5 air miles SE of Philbrook Reservoir 1900 Comment
  CAS-BOT-BC295466  Erigeron lassenianus var. lassenianus E. B. Copeland 1929-7-17 s.n. Butte Above Jonesville 2000 Comment
  POM193096  Erigeron peregrinus subsp. callianthemus E. B. Copeland 1930-7-12 491 Butte Above Jonesville 1800 Comment
  CHSC67339  Erigeron petrophilus var. sierrensis J. D. Jokerst 1984-8-15 2147 Butte Along edge of Pulga Road within 100 meters of its junction with Highway 70. Canyon of the North Fork of the Feather River. Comment
  UC1730242  Erigeron petrophilus var. sierrensis L. P. Janeway 1998-7-31 5906 Butte Lost Creek Reservoir dam, along dirt road 100 ft above N end of 981 Comment
  UC1562351  Erigeron petrophilus var. viscidulus Vernon Oswald and Lowell Ahart 1990-7-31 4414 Butte 2 mi ne Concow (on Jeep Trail between Concow Road and Rim Road) 902 Comment
  POM34274  Erigeron philadelphicus Mrs. R. M. Austin, C. C. Bruce 1898-05 2077 Butte Iron Canyon. Comment
  CHSC109619  Erigeron philadelphicus var. philadelphicus Lowell Ahart 2012-5-25 18114 Butte Northwest of the interesection of W. Frances Willard Avenue and Arcadian Avenue, one block south of Chico High School, Chico. 59 Comment
  CAS-BOT-BC300277  Erigeron strigosus var. strigosus Lowell Ahart 1988-6-29 6111 Butte Along Bean Creek Road, near camping area along Bean Creek, about 3/4 mile south-west of Johnson Ranch, about 2 1/4 miles south of Little Bald Rock 548 Comment
  NY43584  Eriobotrya japonica S. Bianco 1995-11-10 1056 Butte 8841 Skyway Rd (Private land holding) 640 Comment
  JEPS128619  Eriochloa contracta Lowell Ahart 2017-8-1 21654 Butte Park west of railroad, northeast of the intersection of Virginia Street and Sycamore Street, in Gridley. Comment
  CHSC3202  Eriodictyon californicum Gerry Carrauthers 1966-4-23 126 Butte 9 mi. from city of Chico (east) on Highway 32. Near roadside. Comment
  UC1562368  Eriodictyon californicum Lowell Ahart 1990-4-28 6468 Butte in the borrow area about 4/10 mi w of Pacific Heights Road about 4 1/2 mi sw Oroville (1/4 mi s of the Feather River); s of the Feather River, sw of Oroville 30 Comment
  CHSC116207  Eriodictyon lobbii Lowell Ahart 2015-7-4 20267 Butte On both sides of the dirt road, branch road to a meadow west of road to Jackson Ranch, about 300 yards north of the County Road, about one mile west of the intersection of Lumpkin Ridge Road, road to Cascade or Fall River and County Road, about 7 (air) miles northeast of Feather Falls. 1252 Comment
  JEPS95461  Eriogonum nudum var. oblongifolium Lowell Ahart 1994-10-16 7563 Butte 2 air miles N and 3 1/2 mi E of Forbestown (along both sides of dirt road to Forbestown Reservoir, near Woodleaf Creek, 3/4 mi SW of Forbestown Reservoir Dam) 762 Comment
  CAS-BOT-BC261714  Eriogonum nudum var. oblongifolium Lowell Ahart 1989-7-4 6365 Butte South of Oregon Gulch Road, about 1/4 mile north-west of the Cemetery, about 1 1/4 miles west of Rocky Point, about 10 miles east and 3 miles north of Oroville 335 Comment
  CAS-BOT-BC269851  Eriogonum nudum var. pubiflorum Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  UC849636  Eriogonum nudum var. pubiflorum A. A. Heller 1916-9-5 12664 Butte hills 8 mi n Oroville 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
  OBI69159  Eriogonum roseum Kari Fisher 2000-10-7 9 Butte Lindo Channel, 100 ft from E First St 82 Comment
  CAS-BOT-BC268613  Eriogonum spergulinum var. reddingianum H. F. Copeland 1931-6-10 1537 Butte Jonesville 1524 Comment
  CHSC39087  Eriogonum spergulinum var. reddingianum R. A. Schlising; K. Tarp 1983-8-12 4438 Butte N part of county, NE of Philbrook Reservoir, on road leading to Carr Mine. 1981 Comment
  CAS-BOT-BC265214  Eriogonum umbellatum var. speciosum John Thomas Howell 1951-6-26 27524 Butte Near Pulga, Sierra Nevada 417 Comment
  CAS-BOT-BC262207  Eriogonum ursinum E. B. Copeland 1930-7-6 s.n. Butte Jonesville 2050 Comment
  RSA0056354  Eriogonum ursinum James R. Shevock 1972-5-19 1774 Butte Jarbo Pass, Highway 70. 548 Comment
  CHSC43709  Eriogonum ursinum var. ursinum Vernon Oswald 1983-6-22 747 Butte On the s side of Humbolt Rd. (to Butte Meadows) 3.3 mi n-e of Calif. Hwy 32. 1386 Comment
  CAS-BOT-BC262339  Eriogonum vimineum Lowell Ahart 1983-6-30 4181 Butte About 1/2 miles north-east of Concow Res. 550 Comment
  CHSC99548  Eriophyllum lanatum var. grandiflorum L. P. Janeway 2008-6-15 9414 Butte High Cascade Range. North end of Carpenter Ridge; south side of Humboldt Road 5.0 road km northeast of Hwy 32. About half way up the steep open slope and vicinity of a dry bedrock drainage swale. 1448 Comment
  RSA21662  Eriophyllum lanatum var. grandiflorum C. B. Wolf 1937-5-18 8732 Butte Northern Sierra Nevada. 8.7 miles below Magalia on Oroville road 366 Comment
  UC600403  Eriophyllum lanatum var. grandiflorum H. F. Copeland 1931-6-10 Butte gulch draining into Colby Canyon; Jonesville 1524 Comment
  UC614533  Eriophyllum lanatum var. grandiflorum L. Constance, J. L. Morrison 1938-4-30 2176 Butte 5 mi se Oroville; Feather River 152 Comment
  CHSC90247  Erodium cicutarium Robert Kissane 1989-4-20 11 Butte On Moore's ranch 2090 Oak Park Ave., Chico. 70 Comment
  JEPS107954  Erodium cicutarium Lowell Ahart 2005-4-14 11723 Butte About 20 feet east of the railroad tracks, north of Spruce Street, Gridley 28 Comment
  CHSC101282  Erodium moschatum Lowell Ahart 2009-4-3 15529 Butte Along margins of the gravel road, east of the Cedar Grove parking area in Lower Bidwell Park, Chico. 67 Comment
  CHSC116735  Eryngium castrense Lowell Ahart 2016-5-24 20849 Butte On dry yellow soil, near the ditch, about 200 yards west of Loma Rica Road, about 300 yards southwest of the intersection of Loma Rica Road and La Porte Road, about 3 1/2 miles (air) northeast of Honcut. 50 Comment
  CHSC34161  Eryngium castrense L. Ahart 1981-8-31 3060 Butte Wyandotta Lake, ca. 8 mi. e of Oroville. 450 Comment
  CAS-BOT-BC211104  Eryngium pinnatisectum John Thomas Howell 1962-6-15 37419 Butte 5 miles west of Oroville Comment
  CHSC35763  Erysimum capitatum var. capitatum R. E. Preston 1982-6-18 306 Butte On roadcut on e side of Oro-Quincy Hwy; ca. 1.2 mi n of rd to Fourmile Ridge, ca. 3 mi ne of Brush Creek. 1036 Comment
  CHSC60968  Erysimum capitatum var. capitatum Lowell Ahart 1993-7-6 7058 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC29240  Erythranthe bicolor M. S. Taylor 1980-5-8 2590 Butte Ca. 3 mi n of Forest Ranch, ca. 1 mi e of Hwy 32. 853 Comment
  CHSC38696  Erythranthe bicolor Vernon Oswald 1983-5-8 447 Butte Upper Bidwell Park, Chico, on the w bank of the Diversion Channel between Lindo Channel and Wildwood Ave. 83 Comment
  CHSC42039  Erythranthe bicolor Lowell Ahart 1986-5-20 5280 Butte Road goes to the Forbestown Reservoir, about 2 miles south-west of the Forbestown Reservoir, about 2 1/2 miles north-east of Forbestown. 822 Comment
  CHSC113492  Erythranthe breviflora Lowell Ahart 2014-7-10 19615 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1664 Comment
  CHSC1760  Erythranthe cardinalis V. Holt 1932-10-28 Butte Near Richardson Springs. 152 Comment
  CHSC27272  Erythranthe glaucescens P. Moyer 1972-4-16 173 Butte CSUC Campus. S. bank Chico Ck., e of Warner St. Bridge. 60 Comment
  CHSC38700  Erythranthe glaucescens Vernon Oswald 1983-3-9 138 Butte Upper Bidwell Park, Chico, on the north clope ca. 600 ft w of the power lines abd 1600 ft n of the Upper Park Rd. 152 Comment
  CHSC39936  Erythranthe glaucescens M. S. Taylor 1984-4-4 5383 Butte N side of Humbug Rd, ca. 0.5 mi E of Honey Run Covered Bridge, ca. 6 air mi E of Chico. 182 Comment
  CHSC40886  Erythranthe glaucescens Lowell Ahart 1985-5-6 4934 Butte About 1/10 mile east of Longfellow Avenue, Chico. 60 Comment
  CHSC93508  Erythranthe glaucescens Lowell Ahart 2006-5-10 12614 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
  CHSC116308  Erythranthe guttata Lowell Ahart 2015-11-18 20662 Butte On the west side of the Feather River, about 1/2 mile south of Palm Avenue, about 1 1/2 miles southeast of the intersection of Palm Avenue and Larkin Road, about 5 miles (air) northeast of Gridley. 26 Comment
  CHSC40891  Erythranthe guttata Lowell Ahart 1985-6-17 5056 Butte 100 yards south of the dirt road, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 975 Comment
  CHSC90015  Erythranthe guttata Rebecca L. Hill 1990-4-19 13 Butte W side of the East Branch of Clear Creek, ca. 200 yds ne of Clear Creek Cemetery Road. Ca. 6 mi s of Paradise off of Clark Rd. 121 Comment
  SEINET8354987  Erythranthe moniliformis A. A. Heller 1914-6-22 11511 Butte Chico meadows. 1219 Comment
  CHSC3602  Erythranthe nasuta Gerry Carrauthers 1966-2-28 27 Butte Ca. 8 mi N.E. of Chico ca. 3 mi N.E. of Bidwell Golf Course near Chico Creek Salmon Hole. Comment
  CHSC44777  Erythranthe nasuta R. Banchero 1980-5-7 148 Butte Roadside 4.65 mi NE of the jct of Hwy 70 and the Feather River, 1.0 mi SW of Arch Rock Tunnel. 463 Comment
  CHSC49008  Erythranthe primuloides Vernon Oswald 1983-7-19 882 Butte Bull Hill Rd. 1.0 mi n of its jct. with the Skyway and Humbug Summit Rd. 1524 Comment
  CHSC32649  Erythronium multiscapideum M. S. Taylor; D. V. Hemphill 1981-3-18 3416 Butte N side of Pulga Rd, near its jct with Pulga bridge over Hwy 70. 487 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
  CAS-BOT-BC504533  Erythronium multiscapideum Lowell Ahart 1972-3-22 s.n. Butte Along Swedes Flat Road, Bangor 1500 Comment
  HSC72760  Erythronium multiscapideum M. S. Taylor, D. V. Hemphill 1981-3-18 3422 Butte Near and W of bridge crossing W Branch of Feather River on Ponderosa Way 488 Comment
  SEINET12047244  Erythronium multiscapideum M. S. Taylor, Hanson, L. 1981-1 3474 A Butte W side of Coutelenc Rd, N of spur rd, just N of RR overpass & Skyway, ca 0.25 mi N of Magalia 701 Comment
  CAS-BOT-BC402642  Eschscholzia caespitosa A. A. Heller 1927-4-7 14336 Butte At the Salmon Hole on Chico Creek east of Chico Comment
  UCSB63621  Eschscholzia caespitosa Holloway, Steve 1986-4-1 Butte North Table Mountain, 150m W of Cherokee Rd., 11.1 km N of the Feather River (Oroville 7.5 minute series Quadrangle. NW1/4, Sec. 17, T20N, R4E 396 Comment
  CHSC112099  Eschscholzia californica Lowell Ahart 2012-6-21 18220 Butte On the south side of Big Chico Creek, about 5 yards east of the Freewy, Lower Bidwell Park, Chico. 62 Comment
  POM125703  Eschscholzia californica var. crocea C. C. Bruce 1897-05 2022 Butte Near Chico. Comment
  CHSC1192  Eschscholzia lobbii W. Reed 1942-3-26 Butte Comment
  CHSC3564  Eschscholzia lobbii R. D. Briggs 1966-3-6 63 Butte North end of Bidwell Park golf course, Chico. Comment
  CHSC45027  Eschscholzia lobbii Sameena S. Klan 1988-3-7 20 Butte N side of Cohasset Rd., ca. 4 mi ne of Chico Municipal Airport, Chico. 106 Comment
  CHSC88970  Eschscholzia lobbii Christine Hantelman 2000-3-23 22 Butte On firebreak on south side of Wookey road, 1/8 mi west of driveway at end of road. 112 Comment
  UC1303147  Eschscholzia lobbii A. A. Heller 1928-4-4 14483 Butte in a field near Hooker Oak (e of Chico) Comment
  CDA4808  Euphorbia lathyris L. Going 1963-8-9 Butte W. E. Graves property, 2330 Porter Way, Chico. 0 Comment
  UCD142602  Euphorbia maculata John Thomas Howell 1959-9-20 34671 Butte Eastern outskirts of Oroville. 60 Comment
  CAS-BOT-BC202420  Euphorbia ocellata Lowell Ahart 1989-5-23 6256 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
  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
  CHSC101135  Euphorbia spathulata Lowell Ahart 2009-5-15 15701 Butte About 20 yards east of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 234 Comment
  CHSC96930  Euphorbia spathulata Lowell Ahart 2007-6-3 13974 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
  JEPS95142  Euphorbia spathulata Lowell Ahart 1997-3-25 7714 Butte about 12 air mi se of Oroville (about 2 1/4 mi n and 2 1/2 mi e of Honcut, w of the ditch for the Old Honcut Flume, w of North Hocut Creek) 60 Comment
  JEPS115677  Euthamia occidentalis Lowell Ahart 2009-10-8 16413 Butte On the south edge of a large ditch, on the north side of the road, about 20 yards northeast of Parking Lot 12, Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley 19 Comment
  JEPS121967  Fallopia convolvulus Lowell Ahart 2014-7-7 19558 Butte About 5 yards east of the Skyway, about one-mile north of Stirling City. Comment
  CHSC93854  Festuca Lowell Ahart 2006-5-19 12635 Butte Road gutter, on the west side of the dirt road, Bardees Bar Road, south of the small stream, about 1/4 mile southwest of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga. 405 Comment
  CHSC109589  Festuca arundinacea Lowell Ahart; Susan Bazell, Josephine Guardino 2012-5-31 18117 Butte On the north side of the paved park road (Peterson Drive) about 300 yards west of the gate, Lower Bidwell Park, Chico. 76 Comment
  CHSC19641  Festuca arundinacea E. Parreno 1968-4-27 75 Butte Vacant lot behind Community Center on e 9th and Linden St., Chico. 59 Comment
  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
  CHSC52366  Festuca arundinacea J. D. Jokerst; L. Ahart, M. S. Taylor 1982-4-29 1547 Butte In the Grey Lodge Waterfowl Management Area, roadside. Comment
  JEPS119859  Festuca arundinacea Lowell Ahart, Susan Bazell, Josephine Guardino 2012-5-31 18117 Butte On the north side of the paved park road (Peterson Drive) about 300 yards west of the gate, Lower Bidwell Park, Chico. Comment
  SD122516  Festuca californica Lowell Ahart, Peter Ahart 1984-6-10 4701 Butte Yellow Pine Forest, about 2 miles southwest of Forbestown Diversion Dam, northeast of Forbestown 700 Comment
  SEINET10560456  Festuca californica BOS 1978-3-28 BOS 7 Butte Along Oakway Rd., 5 mi ENE of Magalia, E of Feather River. Foothill Woodland. Comment
  SEINET10560463  Festuca californica K. Bridwell 1978-5-31 Bridwell 130 Butte Ca. 200 yds E of Coutolenc Rd., ca. 3 mi NE of Magalia. Serpentine soil. Associate: Cupressus macnabiana. 762 Comment
  POM365944  Festuca californica var. californica L. Ahart, P. Ahart 1984-6-10 4701 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown. 700 Comment
  CHSC61538  Festuca occidentalis Lowell Ahart 1993-6-16 6970 Butte South-west of the intersection of Black Bart Road and Forbestown Road, about 3 1/2 (air) miles south-west of Forbestown. 609 Comment
  CHSC82473  Festuca occidentalis Lowell Ahart; John Dittes, Josephine Guardino 2002-6-21 9744 Butte On the north side of a poor dirt road, Watson Ridge, about 2 miles (air) northeast of Bald Rock Dome, about 5 miles (air) north of Feather Falls (the town). Comment
  CHSC88159  Festuca occidentalis Lowell Ahart 2004-7-23 11298 Butte On the sides of a small stream, about 20 yards northwest of the dirt road to the West Branch Campground, about 50 yards southeast of the intersection of Humbug Road and Philbrook Reservoir Road, about 1 3/4 miles (air) west of Philbrook Reservoir Dam, about 3 miles (air) southeast of Butte Meadows. 1586 Comment
  RSA754865  Festuca subulata L. Ahart 2008-6-2 14807 Butte South side of Ponderosa Way, about 1 air mile SW of the Ponderosa Dam, about 2.25 air miles NW of Forbestown. 671 Comment
  CHSC12611  Ficus carica S. Posner 1972-9-24 Butte Ca. 150 yds S of Humbug Road, 3 mi E of Skyway. Comment
  CHSC52181  Ficus carica Pauleen Broyles 1987-5-21 1049 Butte Along the banks of Pine Creek. Comment
  CHSC77602  Ficus carica L. P. Janeway 2000-3-29 6642 Butte Sacramento Valley. In narrow riparian strip along Little Chico Creek at Salem Street in Chico. 60 Comment
  SEINET10474662  Filago californica Mary Susan Taylor 1980-5-27 Taylor 2661 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
  CHSC50551  Floerkea proserpinacoides Vernon Oswald 1990-7-3 4340 Butte Butte Creek House Meadow Ecological Preserve on Humbug Rd, ca. 3.5 mi east-southeast of Jonesville. Along the south boundary fence in section 27. 1780 Comment
  CHSC42909  Foeniculum vulgare Lowell Ahart 1987-7-12 5820 Butte Along North Honcut Creek, about 2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 64 Comment
  CAS-BOT-BC437080  Fragaria virginiana subsp. platypetala H. F. Copeland 1920-8-29 162 Butte Jonesville 1219 Comment
  CAS-BOT-BC62943  Frangula californica subsp. tomentella A. A. Heller 1915-5-17 11881 Butte Canyon of Chico creek 5 mi. e. of Chico. This type was collected about 50 mi. to the s., probably along the Bear River. Comment
  CAS-BOT-BC62947  Frangula californica subsp. tomentella Lowell Ahart 1983-6-21 4100 Butte Along the edge of Bloomer Hill Road, about 3 mi. nw. of the Oroville Quincy Highway, about 16 mi. nw. of Oroville. 700 Comment
  CAS-BOT-BC62949  Frangula californica subsp. tomentella John Thomas Howell 1962-6-15 37441 Butte Magalia. 731 Comment
  CHSC47050  Frangula purshiana R. A. Schlising; P. Broyles 1987-6-26 4520 Butte 1.2 mi s of Inskip, along Skyway. 1417 Comment
  CAS-BOT-BC55785  Frangula rubra subsp. yosemitana C. R. Quick 1941-6-8 41 -09 Butte About 2 miles S. of Big Bar. Mt. Comment
  CHSC1085  Fraxinus latifolia 1954-5-30 Butte Nelson's Bar, West Branch of Feather River. 304 Comment
  CHSC109647  Fraxinus latifolia Lowell Ahart 2012-5-17 18086 Butte On the north side of Big Chico Creek, on the south side of the paved park road, south of the old walnut orchard, south of Vallombrosa Avenue, aobut 1/10 mile west of Peterson Drive, Lower Bidwell Park, Chico. 76 Comment
  CHSC20124  Fraxinus latifolia M. S. Taylor 1975-5-6 556 Butte Along s edge of Big Chico Creek, ca. 50 ft e of Little Cafeteria, California State University, Chico. 60 Comment
  CHSC3019  Fraxinus latifolia Carl Pejsa 1958-4-19 53 Butte Bidwell Park Forestry Station. Comment
  UCR219101  Fraxinus latifolia George K. Helmkamp, E. A. Helmkamp 2009-9-5 15570 Butte Sacramento Valley, Lower Honcut Road, 0.8 mile east of its junction with CA-70, 2.5 mi. WSW (261 deg. ) of Honcut, 6.6 mi. SE (116 deg. ) of Gridley 27 Comment
  CHSC2277  Fritillaria affinis R. Carter 1965-3-2 149 Butte 100 NW of Police Pistol Range on Centenial Ave., on hillside 30' above road NE of Chico. 152 Comment
  CHSC4661  Fritillaria affinis R. Carter 1966-3-13 301 Butte Found ca. 6 mi. E of Chico at intersection of HoneyRun Rd. and Humbug Rd. in Butte Cr. Canyon. Comment
  CHSC86423  Fritillaria affinis R. D. Fischer; Paul Maslin 2004-2-7 57 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). Plants located about half mile south of main entrance. UTM: 10 609847E 4408885N. 381 Comment
  POM109752  Fritillaria affinis C. C. Bruce 1897-02 2024 Butte Little Chico Comment
  CHSC32663  Fritillaria eastwoodiae M. S. Taylor; D. Hemphill 1981-3-18 3430 Butte NNW of Sawmill Peak, off Jordan Hill Rd (Ponderosa Way), ca. 1 air mi ne of Magalia. 701 Comment
  CHSC49654  Fritillaria eastwoodiae Vernon Oswald 1984-4-9 1137 Butte Feather Falls Trail, near the overlook at the falls. 609 Comment
  SEINET10905373  Fritillaria eastwoodiae Mary Susan Taylor, L. Hanson 1981-4-2 Taylor 3475 Butte T23N R4E northcentral sec 30; Paradise quad. Ca. 1/5 mi se of Ponderosa Way Bridge over West Branch Feather River, in Genii Mine area, ca. 3/4 mi ne (and downhill) of Magalia. Steep serpentine slope; 1800 ft. 549 Comment
  CHSC99098  Fumaria officinalis Elena Alfieri 2008-2-22 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
  CDA13246  Galium aparine G. F. Hrusa, T. D. Wilfred 1996-7-8 13093 Butte Plumas National Forest; Near Old Railroad Grade Rd., Paradise Lake Dam, approx. 3 m. N of Magalia. Comment
  CHSC42432  Galium aparine Lowell Ahart 1987-5-9 5579 Butte Along Pulga Road, about 1/4 mile west of Bardees Bar along the North Fork of the Feather River, about 2 1/2 miles south-west of Pulga. 365 Comment
  CHSC28018  Galium bifolium M. S. Taylor 1978-7-18 1714 Butte On E side of Humboldt Peak, at Humboldt Summit. 2133 Comment
  CHSC38656  Galium bolanderi Vernon Oswald 1983-6-9 658 Butte Upper Bidwell Park, Chico, beside Yahi Trail W of Brown's Hole. 195 Comment
  CHSC86597  Galium divaricatum L. P. Janeway 2003-5-7 7779 A Butte Northern Sierra Nevada Foothills. Kelly Ridge between Lake Oroville Visitors Center and south end of Oroville Dam. 329 Comment
  CDA6670  Galium mollugo Sterling O. Mattoon 1962-5-2 Butte Jesse Ranch, Nord Avenue at Bell Road, Chico. 0 Comment
  CHSC78269  Galium parisiense Lowell Ahart 2000-6-27 8524 Butte Seepy area, north part of Big Bald Rock, area is about 100 yards south and west of the north and east forest line, about 3 miles (air) east of Madrone Lake, about 12 miles (air) northeast of Oroville. 963 Comment
  CDA6660  Galium parisiense L. Ahart 2000-6-27 8524 Butte North part of Big Bald Rock, area is about 100 yards south and west of the north and east forest line, about 3 miles (air) east of Madrone Lake, about 12 miles (air) northeast of Oroville. Comment
  JEPS52624  Galium sparsiflorum subsp. glabrius Lauramay T. Dempster 1964-7-24 4046 Butte 1 mi s Nimshew (near creekbed) 658 Comment
  JEPS122076  Galium trifidum subsp. columbianum Lowell Ahart 2014-7-13 19659 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir Comment
  CHSC33960  Galium trifidum var. pacificum M. S. Taylor; L. Ahart 1981-8-16 4196 Butte Jones Meadow, ca. 3 mi S of Philbrook Reservoir, ca. 6 mi NE of Stirling City. 1828 Comment
  UC1562386  Galium trifidum var. pacificum Lowell Ahart 1990-7-2 6535 Butte near McCabe Creek (below high water line of lake, about 1/2 mi sw of the Enterprise Bridge across lake); Lake Oroville 243 Comment
  CHSC11818  Galium triflorum E. B. Copeland 1930-7-15 472 Butte Jonesville. 1500 Comment
  CHSC93072  Galium triflorum L. P. Janeway 1994-7-5 4680 Butte Northern High Sierra Nevada. Northeast side near top of ridge 0.7 mi east-southeast of Flea Mountain; 0.3 mi east-southeast of Campbell Meadow. On road cutbank and above. 1158 Comment
  CAS-BOT-BC169940  Garrya fremontii Lowell Ahart 1985-1-27 4835 Butte East of Magalia, along the road 750 Comment
  CHSC11984  Garrya fremontii E. B. Copeland 1932-7-27 667 Butte Jonesville. 1650 Comment
  CAS-BOT-BC282604  Gastridium phleoides A. A. Heller 1914-6-2 11474 Butte 8 miles north of Oroville Comment
  CHSC38821  Gastridium phleoides Vernon Oswald 1983-5-14 491 Butte Upper Bidwell Park, Chico, 500 ft e of the power lines on the north rim. 249 Comment
  UC600541  Gayophytum diffusum subsp. parviflorum H. F. Copeland 1932-8-19 Butte at the Lily Pond Jonesville 1700 Comment
  SBBG127506  Gayophytum heterozygum L. Ahart 2010-9-21 17215 Butte E of the poor dirt rd, ca. 80 yards W of Big Kimshew Crk, ca. 1.5 mi (air) NE of Jones Meadow, ca. 2 1/2 mi (air) SE of Philbrook Reservoir 1917 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
  RSA0119042  Gayophytum racemosum Lowell Ahart 2014-7-7 19602 Butte On the south side of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1665 Comment
  CHSC36225  Geranium carolinianum L. Ahart 1982-4-21 3290 Butte On n slope, under oaks and near North Honcut Creek, ca. 1 1/4 mi n and 3 mi e of Honcut, Peter Ahart Ranch. 50 Comment
  UCR237321  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 2012-4-14 18739 Butte Northern Sacramento Valley, Middle Honcut Road, 1.5 miles east of CA-70, ESE of Gridley 18 Comment
  CDA34134  Geranium molle L. Ahart 2009-4-17 15546 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
  CHSC10752  Geranium molle Lowell Ahart 1970-4-4 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC30866  Geranium molle J. D. Jokerst 1979-3-23 1158 Butte Common in the shaded portions of drainage ravines leading off the W edge of Mt. Top of North Table Mt., W edge of mt, immediately N of the waterfalls of the S fork of Coal Cr. 365 Comment
  JEPS115328  Geranium molle Lowell Ahart 2009-4-17 15546 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
  SEINET10495129  Geranium molle Mary Susan Taylor, K. Tharp 1982-4-8 Taylor 4294 Butte T19N R4E se/ne sec 3. Oroville quad. Turnout near Bridal Path sign, across Feather River from Spillway, along Oroville Dam Blvd (Alt 40), ca. 2.5 mi w of Oroville Dam Visitors Center. Comment
  SEINET10495195  Geranium molle Lowell Ahart 1990-4-8 Ahart 6435 Butte East side of Pacific Heights Road, ca. 3.5 miles southwest of Oroville. T19N R3E c/S35. Foothill Woodland. 34 Comment
  CHSC43048  Geum macrophyllum L. P. Janeway 1987-6-19 2234 Butte Along Sly Creek near the road to the SE side of Sly Cr Reservoir 2.1 mi from the Challenge-LaPorte Rd. Near edge of creek. 1097 Comment
  JEPS113185  Gilia capitata subsp. mediomontana Lowell Ahart 2007-5-29 13920 Butte About 1/8 mile south of Bald Rock Dome, on the west side of the Dome Trail, trail leads to the Middle Fork of the Feather River, about a mile by the trail from the trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Bi 704 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
  HSC23409  Gilia tricolor Marsha Caunt 1971-3-20 1 Butte .5 mi. NE of Diversion Dam on N cliff overlooking Big Chico Creek, Salmon Hole 76 Comment
  SEINET12318342  Gilia tricolor K. D. Johnson 1978-1 18 Butte NW side of Neal Rd, 3.1 mi SW of intersection with Skyway, Paradise 305 Comment
  CHSC5972  Ginkgo biloba M. MacArthur 1968-6-17 209 Butte Ca. 40 ft. N of Big Chico Creek and 40 ft. from path to bridge N of Dining Hall, Chico State College Campus. 60 Comment
  CAS-BOT-BC266484  Githopsis diffusa Lowell Ahart 1987-5-12 5651 Butte S of Lumpkin Ridge Road, 1.5 miles NE of Camp 18, about 8 miles NE of Feather Falls 1280 Comment
  CAS-BOT-BC266585  Githopsis pulchella A. A. Heller 1914-5-22 11423 Butte Near Richardson Springs Comment
  CHSC48011  Githopsis pulchella subsp. campestris Vernon Oswald 1983-5-21 521 Butte Upper Bidwell Park, Chico, on the north rim ca. 1.6 mi e of the power lines. 341 Comment
  CHSC94051  Githopsis pulchella subsp. campestris R. D. Fischer 2005-5-18 725 Butte Sierra Nevada foothills, adjacent Hwy. 32, ca. 4 miles east of Chico in Bidwell Park. Plants growing on the thin, rocky Tuscan mudlfow of the ridge top at the north end of Humboldt Trail, canyon facing. 426 Comment
  UC890661  Githopsis pulchella subsp. campestris A. A. Heller 1937-5-31 15340 Butte about 21 mi from Oroville (near the junction of Highway 24 and the Yankee Hill road) Comment
  CHSC31948  Githopsis specularioides J. D. Jokerst 1979-5-1 1220 Butte Top of North Table Mt., ca. 200 meters S of Cherokee Rd. 396 Comment
  CHSC39534  Githopsis specularioides Lowell Ahart 1983-6-12 4041 Butte Found growing along the road near a small meadow, about 1 mile south of Crystal Hill, near Oregon Gulch, near Lake Oroville, about 7 miles south-west of Feather Falls. 425 Comment
  SEINET10464592  Githopsis specularioides Taylor 1975-4-29 Taylor 536 Butte Scattered on south side of Pentz road, about 0.25 mile east of Highway 99, about 15 miles south of Chico Comment
  CHSC61221  Glyceria declinata Lowell Ahart 1993-4-5 6927 Butte Floor of a rice field on the south side of Cottonwood Road, about 1/2 mile east of Highway 99. 36 Comment
  CDA28229  Glyceria elata T. C. Fuller 1962-7-12 9184 Butte 2 miles east of Butte Meadows, road to Jonesville, bottomland of Butte Creek 0 Comment
  SEINET10473778  Gnaphalium chilense Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4226 Butte T21N R6E ne sec 2. Ca. 1/4 mi w of Milsap Bar, ca. 25 mi ne of Oroville. Yellow Pine Forest; 500 m. 500 Comment
  CAS-BOT-BC302471  Gnaphalium palustre H. F. Copeland 1928-8-17 679 Butte Jonesville Comment
  CHSC38354  Gnaphalium palustre Vernon Oswald 1983-6-3 620 Butte Upper Bidwell Park, Chico, at Horseshoe Lake. 100 Comment
  CHSC75353  Gnaphalium palustre Lowell Ahart 1999-6-12 8086 Butte High water line on the south side of the reservoir, 50 yards east of the dam, north of Beatson Hollow, North Table Mountain, about 2 1/2 miles (air) west of the entrance gates along the west side of Cherokee Road, about 7 miles (air) north of Oroville. 297 Comment
  SEINET10938059  Gnaphalium purpureum Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4152 Butte T20N R5E nw sec 17. Along edge of Ponderosa Way (Big Ridge Rd), ca. 1.5 mi se of East Fork Canyon Creek, ca. 14.5 mi ne of Oroville. Foothill Woodland. 575 Comment
  SEINET6167160  Goodyera oblongifolia P. B. Kennedy 1901-8-15 407 Butte Bearmans camp, north fork of American River Comment
  CHSC112928  Gratiola ebracteata B. Castro; Tom Boullion 2011-4-21 1845 Butte Sacramento Valley. N side of Thermality Forebay/Power Canal, ca 0.3 mi W of Hwy 70 and ca 0.2 mi S of Garden Drive, at S end of picnic/boat ramp recreation area, on the north end of Oroville. 71 Comment
  CHSC43159  Gratiola ebracteata R. A> Schlising 1980-4-2 3529 Butte About 7 miles south of Chico along Chico-Oroville Highway, 1.1 mile N of jct with Pentz Road at Hwy 99. Comment
  UCD123729  Gratiola ebracteata R. N. Raynor; H. A. Hannesson 1941-5-9 s.n. Butte 4 miles west of Oroville. Comment
  CHSC34779  Grindelia camporum var. camporum L. Ahart 1981-11-6 3228 Butte Along edge of road that leads to Graylodge Waterfowl Mgmt HQ, ca. 1/4 mi w of Pennington Rd, ca. 12 mi sw of Gridley. 35 Comment
  HSC23332  Grindelia hirsutula B. Wilson 1968-5-3 185 Butte On Skyway, 2 mi. W of Paradise, N side of the road Comment
  UC177589  Hackelia californica H. M. Hall 1914-7-27 9789 Butte Humboldt Road; Sierra Nevada Mountains 2042 Comment
  CHSC35082  Hackelia micrantha R. Schlising; R. Banchero 1980-7-31 3947 Butte N part of county, NE of Snag Lake. In small meadow. 1828 Comment
  CHSC31715  Hainardia cylindrica L. Ahart 1974-6-3 464 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC109083  Hedera helix Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17861 Butte On the south side of Big Chico Creek, east of the Deer Pen, near Table 12 , Lower Bidwell Park, Chico. 65 Comment
  CHSC106879  Hedypnois cretica Lowell Ahart 2011-5-22 17356 Butte West edge of North Honcut Creek, about 2 1/2 miles north and 2 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville. 58 Comment
  CAS-BOT-BC306289  Hedypnois cretica Roxana S. Ferris 1952-5-16 12476 Butte 5 miles south of Cherokee on road to Oroville Comment
  RSA4141  Helenium bigelovii E. B. Copeland 1930-7-11 494 Butte Jonesville. 1500 Comment
  UC426989  Helenium bigelovii E. B. Copeland 1930-7-11 494 Butte Jonesville 1500 Comment
  CHSC110325  Helenium puberulum B. Castro; Margie Graham 2006-9-7 1609 Butte Sacramento Valley. Ca 1.75 mi W of Highway 99 and 1.3 mi ENE of Richvale and ca 0.4 mi N of Richvale Hwy in Cherokee Canal.. On E side of canal abt 120 ft in from toe of W levee. 32 Comment
  CHSC66431  Helenium puberulum Vernon H. Oswald; Lowell Ahart 1996-6-10 7737 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. On the bank of the Sacramento River at the N end of the Riparian Sanctuary. 28 Comment
  CHSC45680  Helianthella californica var. nevadensis Vernon Oswald 1984-5-9 1175 Butte Between Chico and Forest Ranch on an abandoned section of old Calif. Hwy 32, 9.9 mi n-e of Calif. Hwy 99. 487 Comment
  CHSC86083  Helianthus bolanderi R. D. Fischer 2003-12-7 24 Butte Sierra Nevada foothills within upper Bidwell Park in Chico. Found 150 ft. north of Salmon Hole. 231 Comment
  CHSC354  Helianthus californicus E. Walker 1932-7-20 Butte Durham. 57 Comment
  CAS-BOT-BC134034  Heliotropium M. S. Taylor 1975-10-3 943 Butte Ca. 1/4 mi n of the washout, between River Rd and the Sacramento River, ca. 10 mi w of Chico 36 Comment
  CHSC117400  Heliotropium europaeum Lowell Ahart 2016-5-30 20888 Butte On the bottom of a deep wash (west of where we removed gravel), Peter Ahart Ranch, about 1 1/2 miles north and 1 1/8 miles east of Honcut, about 12 miles (air) southeast of Oroville. 31 Comment
  SEINET10497322  Heliotropium europaeum Mary Susan Taylor 1979-10-2 Taylor 2212 Butte Sacramento River Chico Landing and park, off River Road near the washout, ca. 5 mi W of Chico; Riparian Woodland. 30 Comment
  CHSC35660  Helminthotheca echioides R. E. Preston 1982-4-22 248 Butte On n bank of Western Canal, at jct with the Midway, 0.8 mi s of Nelson. 35 Comment
  CHSC65192  Helminthotheca echioides Lowell Ahart 1995-7-2 7590 Butte Along the edge of the dirt road, near the water trough for horses, south-west of the parking area to unload horses, on the west side of Oroville Quincy Highway, Loafer Creek State Park, about 6 miles east of Oroville. 335 Comment
  CAS-BOT-BC314995  Hemizonella minima E. B. Copeland 1931-7-12 696 Butte Between Jones and North Willow Creeks, Jonesville 1700 Comment
  CHSC82423  Herniaria hirsuta subsp. hirsuta Lowell Ahart 2002-5-7 9628 Butte High banks of a pond, at the beginning of a southeast branch of Schirmer Ravine, about 50 yards east of the pond on the east side of Cherokee Road, North Table Mountain, about 4 miles (air) north of Oroville. 228 Comment
  CHSC44632  Hesperevax acaulis var. ambusticola Vernon Oswald 1986-5-6 1998 Butte Cohasset Ridge along the dirt road paralleling Cohasset Hwy on the south. 457 Comment
  CHSC26822  Hesperevax caulescens M. S. Taylor 1978-5-7 1597 A Butte On e side of Williams Rd, on Butte College campus, ca. 1/4 mi n of Pentz Rd, ca. 15 mi s of Chico. 30 Comment
  CAS-BOT-BC310189  Hesperevax sparsiflora var. sparsiflora Lowell Ahart 1979-4-17 s.n. Butte 3 miles north-west of Bangor. Near North Honcut Creek 100 Comment
  SEINET12023140  Hesperocnide tenella Unknown 1974-1 338 Butte Peter Ahart Ranch, about 1 mi N and 1 1/4 mi E of Honcut, about 12 mi S of Oroville 46 Comment
  UC478502  Hesperolinon micranthum E. B. Copeland 1931-7-12 656 Butte ridge between Jones Creek and North Willow Creek; Jonesville 1700 Comment
  UC129115  Heterocodon rariflorum Miss Kate Conger 1907-1 Butte Brush Creek Comment
  POM59067  Heterocodon rariflorum Kate Konger 1907-1 s.n. Butte Brush Creek. Comment
  SEINET10460589  Heterocodon rariflorum Lowell Ahart, Peter Ahart 1983-6-12 Ahart 4040 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
  CAS-BOT-BC143637  Heteromeles arbutifolia Lowell Ahart 1983-6-26 4113 Butte Along Ponderosa Way, about 1/8 mile east of the intersection of the Oroville Quincy Highway and Ponderosa Way, about 15 miles north-east of Oroville 500 Comment
  CHSC115412  Heteromeles arbutifolia M. Rogers 2013-5-14 Butte Oroville, Brad Freeman Tail off Oro Powerhouse Road next to the spillway. 80 Comment
  CHSC41867  Heterotheca grandiflora Lowell Ahart 1986-11-7 5422 Butte In a prune orchard, east of the Feather River, north of the Oroville Gridley Highway, about 3 miles east of Gridley. 28 Comment
  CDA25404  Heuchera micrantha G. D. Barbe, T. C. Fuller 1982-6-14 3683 Butte Highway 70 in Feather River Canyon, above Pulga, 1.6 miles below PG&E power plant. Comment
  SFV1580  Heuchera micrantha M. L. Vincent 1962-4-18 209 Butte Near Feather River at Hells Town. Comment
  CAS-BOT-BC420460  Heuchera micrantha var. erubescens Lowell Ahart 1983-5-28 4019 Butte 5 1/2 miles N of town of Feather Falls 600 Comment
  RSA0062974  Heuchera micrantha var. erubescens C. C. Bruce 1897-05 2041 Butte Iron Canyon. Comment
  RSA483122  Hirschfeldia incana L. Ahart, P. Ahart 1984-6-10 4689 Butte Along edge of a new subdivision road 1 mile SE of Hurleton, 1/12 mile E of Oak Grove Cemetery, 10 miles E of Oroville. 500 Comment
  POM27988  Hoita macrostachya C. C. Bruce 1897-06 1980 Butte Little Chico. Comment
  CHSC31535  Holozonia filipes L. Ahart 1974-7-9 549 Butte Along banks of North Honcut Creek on moist soil. Peter Ahart Ranch, Honcut. 45 Comment
  UC1609263  Hordeum brachyantherum subsp. brachyantherum Lowell Ahart 1993-5-15 6942 Butte near bridge of Biggs Princeton Road about 3 mi w Biggs (Cherokee Canal); Cherokee Canal 30 Comment
  SD149200  Hordeum marinum subsp. gussoneanum Lowell Ahart 1980-4-29 2121 Butte Honcut, Peter Ahart Ranch 49 Comment
  CHSC4401  Hordeum vulgare R. Jaegel 1966-5-16 Butte N entrance to Bidwell Park, 3 mi ne of Chico. Comment
  JEPS119876  Horkelia californica var. elata Lowell Ahart 2012-6-2 18137 Butte About 100 yards north 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. Comment
  CAS-BOT-BC532316  Horkelia fusca var. parviflora V. Oswald; L. Ahart 1988-7-26 3614 Butte Snow Mt. region located ca. 6 air mi se of Jonesville. 1996 Comment
  RSA451574  Horkelia tridentata H. F. Copeland 1929-6-9 1226 Butte Jonesville. 1524 Comment
  CHSC43125  Horkelia tridentata subsp. flavescens L. P. Janeway 1987-6-5 2141 Butte Near confluence of Ram and French Creeks. 609 Comment
  CHSC26695  Hosackia crassifolia M. S. Taylor; M. Hayes, R. Schlising 1977-8-17 1471 Butte On n side of Old Humboldt Rd, ca. 3 mi e of its jct with Scotts John Rd, n of Jonesville. 1828 Comment
  CHSC116340  Hydrocotyle umbellata Lowell Ahart 2015-11-18 20656 Butte On the west side of the Feather River, about 1/2 mile south of Palm Avenue, about 1 1/2 miles southeast of the intersection of Palm Avenue and Larkin Road, about 5 miles (air) northeast of Gridley. 26 Comment
  CAS-BOT-BC175966  Hypericum Lowell Ahart 1977-6-26 s.n. Butte Peter Ahart Ranch, Honcut. Along edge of North Honcut Creek 50 Comment
  CAS-BOT-BC400827  Hypericum anagalloides A. A. Heller 1913-6-4 10774 Butte Table Mountain Olive Ranch north of Oroville Comment
  CAS-BOT-BC400832  Hypericum anagalloides E. B. Copeland 1929-7-16 381 Butte Jonesville 1550 Comment
  CHSC113509  Hypericum anagalloides Lowell Ahart 2014-7-16 19679 Butte Northeast of a large wet meadow (some bog), about 60 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC13712  Hypericum anagalloides M. S. Taylor 1974-9-14 321 Butte Abundant ca. 1/2 mi n of Bidwell Park Rd, opposite Alligator Hole, on w edge of burn, Upper Bidwell Park, Chico. Comment
  CHSC58920  Hypericum anagalloides Lowell Ahart 1992-8-2 6898 Butte Growing on damp dark clay soil on the bottom of Concow Creek, in Concow Meadow, about 3 (air) miles north-east of Concow Reservoir. 1097 Comment
  POM86631  Hypericum androsaemum C. C. Bruce 1897-06 1897 Butte Little Chico. Comment
  CAS-BOT-BC410223  Hypericum concinnum John Thomas Howell 1962-6-16 37595 Butte Feather River West Branch sw of Nelson Bar 304 Comment
  CHSC63820  Hypericum formosum var. scouleri S. C. Morey 1983-7-28 633 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  CHSC6057  Hypericum patulum var. henryi M. MacArthur 1968-6-17 182 Butte SE wall of Life Sciences bld., Chico State College campus. 60 Comment
  CAS-BOT-BC401331  Hypericum scouleri A. A. Heller 1914-7-23 11599 Butte In Chico Meadows 1219 Comment
  CDA31947  Hypochaeris glabra L. Ahart 2009-4-26 15612 Butte Upper Bidwell Park, on the west side of Highway 32, west of the parking area at the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. Comment
  UCR190832  Iris Ken Osborne 2007-5-13 s.n. Butte Sierra Nevada Foothills, along Ponderosa Way at Mud Creek, c. 1.5 mi. SE of Cohasset 701 Comment
  SEINET6190908 Image available Iris douglasiana A. A. Heller 1919-1 13102 Butte Butte County Comment
  SEINET4170702  Iris hartwegii A. A. Heller 1939-3-23 15357 Butte Paradise , in the Arid Transition Zone. Comment
  CHSC88058  Iris hartwegii subsp. hartwegii R. D. Fischer 2004-5-30 184 Butte Northern Sierra Nevada, 4-5 airmiles n. of Paradise, and w. of upper Paradise Pines. Turn w. off Skyway Road on Nimshew Road, ca. 2 miles down this rd. at a private residence. UTM: 10618179E 4410379N. 751 Comment
  CHSC36899  Iris macrosiphon M. C. Earley 1982-4-18 16 Butte Ca. 8.5 mi. ese of Chico. 114 Comment
  CHSC40324  Iris macrosiphon Lowell Ahart 1985-3-22 4848 Butte Found about 1/2 mile northeast of the West Branch Bridge across Lake Oroville, 1/4 mile east of Highway 70, north of Oroville. 450 Comment
  CHSC55627  Iris macrosiphon Dan Morgan 1991-4-21 20 Butte Indian Springs Rd., 0.3 mi w of Neal Rd. Paradise 243 Comment
  SEINET10469754  Iris macrosiphon Mary Susan Taylor 1980-3-1 Taylor 2344 Butte T21N R3E nw 1/4 sec 5. Near Elliot Spring House, S side of Neal Road, ca. 2 mi SW of Paradise. 302 Comment
  UCD138822  Iris tenuissima W. R. Powell 1968-5-17 1507 Butte Along new Oro-Feather Road, 4 miles north-northwest of Rackerby. 548 Comment
  CAS-BOT-BC69951  Isoetes bolanderi Vernon Oswald; Lowell Ahart 1987-7-1 3064 Butte Lily Pond located ca. 0.6 mi (air) w. of Butte Creek House and 0.25 mi. s. of Humbug Rd., ca. 2.75 mi. (air) se. of 1813 Comment
  CHSC31520  Isoetes howellii L. Ahart 1978-4-21 1662 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC71271  Isoetes howellii Lowell Ahart 1998-7-1 8023 Butte About 1/4 miles north of the lone oak tree, about 1/2 mile north of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  POM5203  Isoetes howellii E. B. Copeland 1903-5-30 3281 Butte Chico. Comment
  CHSC60642  Isoetes nuttallii Vernon H. Oswald 1993-4-15 5270 Butte Upper Bidwell Park, Chico, E of Upper Park Rd. slightly S of Parking Area O between Salmon Hole and Devil's Kitchen. 170 Comment
  CHSC39527  Isolepis setacea Lowell Ahart 1983-6-12 4047 Butte In a small meadow, about 1 mile south of Crystal Hill, near Oregon Gulch, near Lake Oroville, about 7 miles south-west of Feather Falls. 425 Comment
  CAS-BOT-BC112644  Isolepis setacea Lowell Ahart 1989-5-28 6285 Butte South of Oregon Gulch road, ca. 1/2 mi N of the Cemetery, ca. 1 1/4 mi W of Rocky Point 335 Comment
  CAS-BOT-BC340242  Jensia rammii Lowell Ahart 1979-4-19 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  JEPS119902  Juglans hindsii Lowell Ahart, Susan Bazell, Josephine Guardino 2012-5-31 18118 Butte On the north bank of Big Chico Creek, on the south side of the paved park road (Peterson Drive) about 300 yards west of the gate, Lower Bidwell Park, Chico. Comment
  CHSC93633  Juglans nigra Paul Kirk 2001-5-25 5 Butte City of Chico, parking lot on south side of the Senator Theater at 517 Main St. 30 Comment
  CAS-BOT-BC110011  Juncus Mrs. R. M. Austin 1883-1-1 s.n. Butte Unspecified. Comment
  RSA726655  Juncus acuminatus L. Ahart 2007-7-7 14263 Butte East side of North Honcut Creek, Peter Ahart Ranch, about 3/4 miles north and 2 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville. 46 Comment
  RSA742780  Juncus acuminatus L. Ahart 2008-5-30 14802 Butte Below the high water line of Lake Oroville, about 300 yards east of the Enterprise Boat Launch Area, about 10.5 miles (air) northeast of Oroville. Comment
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May 4 2010
  UC1594712  Juncus acuminatus Lowell Ahart 1992-7-23 6827 Butte about 2 mi w of Oroville Dam (near Longs Bar Monument, on n side of Thermalito Diversion Pool, Lake Oroville Recreation Area); Lake Oroville Recreation Area, Thermalito Diversion Pool 76 Comment
  POM180884  Juncus bufonius H. F. Copeland 1923-5-1 845 Butte Nelson. Comment
  CHSC113522  Juncus bufonius var. bufonius Lowell Ahart 2014-7-7 19593 Butte On the south side of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1664 Comment
  CHSC44523  Juncus bufonius var. congestus Lowell Ahart 1988-5-15 6005 Butte On the south side of Oroville Dam Boulevard, east of McDonald's, Oroville. 42 Comment
  RSA715609  Juncus bufonius var. congestus L. Ahart 2005-4-18 11737 Butte 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 southwest of Chico 26 Comment
  CHSC47540  Juncus capitatus Lowell Ahart 1980-5-4 2207 Butte About 150 feet south-west of the intersection of Forbestown Road and Hurleton Swedes Flat Road, about 1/2 mile south-east of Hurleton. 548 Comment
  CHSC42897  Juncus covillei Lowell Ahart 1987-7-8 5814 Butte Near a stream, along Walker Plains Road, about 1/8 mile north of Coyote Gap, about 5 miles east of Pulga. 1280 Comment
  UC1562391  Juncus diffusissimus Lowell Ahart 1990-5-21 6476 Butte about 4.5 mi sw Oroville (about 0.25 mi s of Feather River, about 0.4 mi w of Pacific Heights Road, w. edge of small pond) 30 Comment
  CHSC39587  Juncus effusus subsp. pacificus Lowell Ahart 1983-7-24 4202 Butte Found along the edge of the dirt road, about 2 miles south-west of the Forbestown Res., about 3 miles north-east of Forbestown. 550 Comment
  JEPS114882  Juncus effusus subsp. pacificus Lowell Ahart 2008-7-23 15141 Butte On the east side of Sucker Creek, about 5 yards north of where Sucker Creek enters the South Fork of the Feather River, below the high water line of Lake Oroville, about 1/4 mile west of the Ponderosa Dam 258 Comment
  CHSC44832  Juncus ensifolius J. D. Jokerst; R. A. Schlising 1982-10-7 1650 Butte Along the edge of road in ditch, W edge of the Skyway, 1.1 mi S of Innskip. 1432 Comment
  CHSC78336  Juncus ensifolius Lowell Ahart 2000-6-27 8523 Butte North part of Big Bald Rock, area is about 100 yards south and west of the north and east forest line, about 3 miles (air) east of Madrone Lake, about 12 miles (air) northeast of Oroville. 963 Comment
  UCD135933  Juncus exiguus Barbara L. Wilson; Lowell Ahart, Lawrence Janeway, Peter F. Zika 2010-8-5 16765 Butte along Mooreville Ridge Road (Forest Service Road 20N09) near junction with Pinkard Creek Road above Lost Creek Reservoir. 1149 Comment
  CHSC113446  Juncus hemiendytus var. hemiendytus Lowell Ahart 2014-7-10 19623 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1664 Comment
  CHSC46601  Juncus hemiendytus var. hemiendytus V. Oswald; L. Ahart 1989-7-12 3848 Butte Road between Jones Meadow and Lotts Lake, ca. 3 mi (air) se of Philbrook Reservoir. 1901 Comment
  UC1609084  Juncus hemiendytus var. hemiendytus Lowell Ahart 1993-6-20 6974 Butte about 1/2 mi s of Quartz Hill (tracks of a logging road) 1219 Comment
  RSA725284  Juncus howellii L. Ahart 2006-8-15 13178 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
  CHSC42090  Juncus kelloggii Lowell Ahart 1980-5-13 2263 Butte Below a seep, west of the Pentz Magalia Highway, about 3 miles south of Paradise. 457 Comment
  JEPS110158  Juncus laccatus Lowell Ahart 2006-7-16 13012 Butte West edge of a large meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
  CHSC27060  Juncus leiospermus var. ahartii Lowell Ahart 1978-5-1 1692 Butte Peter Ahart Ranch, Honcut. On the bottom of vernal pools and swales in a farmed field. 50 Comment
  UC1543895  Juncus leiospermus var. ahartii Lowell Ahart 1978-5-1 1692 Butte Peter Ahart Ranch Honcut 50 Comment
  CAS-BOT-BC110136  Juncus leiospermus var. leiospermus J. D. Jokerst 1979-5-2 1227 A Butte On top of North Table Mountain, ca. 200 meters south of Cherokee Road along the east edge of section 17, southwest of benchmark 1263. 396 Comment
  CHSC93495  Juncus leiospermus var. leiospermus Lowell Ahart 2006-5-8 12602 Butte Center of a small swale, about 100 yards southwest of the reservoir dam, about 2 3/4 miles west of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 280 Comment
  JEPS110153  Juncus leiospermus var. leiospermus Lowell Ahart 2006-5-8 12584 Butte Margins of a vernal pool where there is basalt shelfing, about 3/4 mile northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 396 Comment
  RSA768998  Juncus leiospermus var. leiospermus L. Ahart 2010-5-22 16726 Butte Open pasture field about 100 yards east of Cherokee Road, about 200 yards northeast of parking area, North Table Mountain, about 4.5 air miles northeast of Oroville. 386 Comment
  CHSC39361  Juncus orthophyllus L. Ahart 1983-9-17 4427 Butte Ca. 1/8 mi ne of Kunkle Reservoir, south of Paradise. 600 Comment
  CHSC57156  Juncus orthophyllus L. P. Janeway; C. A. Janeway 1986-8-31 1808 Butte Along Scotts John Creek at road 26N27, 3 mi from Humboldt Road. 1737 Comment
  CHSC38922  Juncus oxymeris Vernon Oswald 1983-5-25 556 Butte Upper Bidwell Park, Chico, 400 ft s of Upper Park Rd. and 1200 ft e of Salmon Hole Parking Area. 182 Comment
  UCD141681  Juncus oxymeris Robert E. Preston 1982-7-16 337 Butte Crane Valley. Comment
  RSA754814  Juncus tenuis L. Ahart 2009-6-19 15919 Butte About 60 yards NW of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 2/3 air mile W of Highway 32, about 10 miles NE of Chico. 268 Comment
  UCD142364  Juncus tenuis G. F. Hrusa; T. D. Wilfred 1997-5-1 13700 A Butte NE side of upper end of Paradise Lake. Where last tributaries from E enter. 775 Comment
  SBBG121548  Juncus triformis L. Ahart 2007-6-12 14062 Butte W of a high ridge on Big Bald Rock, ca. 14 air mi NE of Oroville 972 Comment
  CHSC113274  Juncus trilocularis Lowell Ahart 2014-5-21 19531 Butte Along a small drainage and the poor road, about 100 yards west from Ponderosa Way, about 1/4 mile northwest of the Ponderosa Dam. 271 Comment
  CHSC102731  Juncus usitatus Lowell Ahart 2009-7-4 15999 Butte On the side of a pond, on the west side of the gravel road, about 100 yards south of parking lot 3, Gray Lodge Watefowl Management Area, about 6 miles (air) southwest of Gridley. 21 Comment
  CHSC96975  Juncus usitatus Lowell Ahart 2007-7-11 14290 Butte About 100 yards west of the high gravel road (at turn, before washout), about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. 35 Comment
  CHSC97112  Juncus usitatus Lowell Ahart 2007-7-31 14401 Butte Along a drain ditch, on the north side of Highway 162, at the intersection of Highway 162 and Wickman Road, about 3 miles (air) southwest of Richvale. 26 Comment
  CHSC97207  Juncus usitatus Lowell Ahart 2007-7-31 14400 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
  JEPS113749  Juncus usitatus Lowell Ahart 2007-8-3 14405 Butte On the west side of a large canal, on the west side of Aguas Frias Road (Goodspeed Watt), about 6 miles (air) northwest of Richvale 29 Comment
  JEPS124333  Juncus usitatus Lowell Ahart 2015-10-16 20560 Butte About half way of and east of One Mile Pond, about 6 miles (air) east of Biggs. Comment
  RSA123366  Juniperus californica A. E. Wieslander 1933-6-24 330 Butte 8 miles southeast of Chico on Neal Road 122 Comment
  CHSC111417  Juniperus lusitanica Lowell Ahart; Susan Bazell, Josephine Guardino, Wes Dempsey 2012-7-5 18265 Butte Twig from a very large tree, on dry excellent soil, Cedar Grove, parking area, Lower Bidwell Park, Chico. 71 Comment
  NY790276  Keckiella corymbosa J. V. Monachino 1952-7-23 s.n. Butte Oroville, at outskirts of the city on the Feather River. Comment
  CHSC44083  Kelloggia galioides L. P. Janeway 1987-6-26 2323 Butte SW end of Logue Mdws. 1325 Comment
  SEINET10869775  Kelloggia galioides Mary Susan Taylor 1978-7-18 Taylor 1678 Butte On W side of Hwy 32 on edge of Yellow Pine Forest, in dry open area, ca. 1/4 mi N of Forest Ranch. 718 Comment
  CHSC113191  Kickxia elatine Lowell Ahart 2013-11-29 19293 Butte Below the high water line of Lake Oroville, about 250 yards west of the old road, about 3 1/2 miles (air) northeast of Oroville Dam. 225 Comment
  CHSC37830  Kickxia elatine R. A. Schlising 1982-4-25 4235 Butte S of Paradise, ne of Lime Saddle and sw of Cape Horn. Off Pentz-Magalia Hwy. Comment
  CHSC41996  Kumlienia hystricula Lowell Ahart 1975-3-7 707 Butte Along a small stream, along Ponderosa Way, about 2 miles south of the Ponderosa Dam, north-west of Forbestown. 426 Comment
  CHSC43728  Kumlienia hystricula Vernon Oswald 1984-5-23 1201 Butte Near the falls on Bear Ranch Creek s-e of Calif. Hwy 70 at the Cresta Rest Area. 512 Comment
  JEPS107554  Kyllinga brevifolia Lowell Ahart 2005-8-14 12332 Butte Edge of ponds, Oroville Wildlife Area, about 1/2 mile west of Pacific Heights Road, about 3 1/2 miles (air) northwest of Palermo 28 Comment
  UCD141221  Kyllinga brevifolia John Thomas Howell 1959-9-20 34631 Butte eastern outskirts of Oroville. 60 Comment
  POM216215  Lagophylla glandulosa D. D. Keck 1933-5-31 2409 Butte Bridge crossing Mud Creek, 2.9 miles W of Richardson Springs. Comment
  SFV4000  Lagophylla glandulosa M. L. Vincent 1962-9-13 286 Butte One mile west of Paradise on Honeyrun Road. Comment
  CHSC82103  Lamium amplexicaule Lowell Ahart 2002-3-2 9414 Butte On the west edge of the Midway, about 1 mile north of Richvale. 30 Comment
  JEPS119544  Lamium amplexicaule Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17857 Butte East of the Deer Pen, between Tables 10 & 11, Lower Bidwell Park, Chico. Comment
  CHSC108971  Lamium purpureum Lowell Ahart; John Dittes, Josephine Guardino 2012-4-6 17814 Butte On the north side of Big Chico creek, Lost Park in Bidwell Park, city of Chico. 60 Comment
  JEPS119499  Lasthenia californica subsp. californica Lowell Ahart 2012-4-9 17834 Butte West of South Rim Trail, south part of Upper Bidwekk Park, about 2 1/4 miles (air) northeast of Chico. Comment
  CHSC112889  Lasthenia fremontii Robin Carter; Sabrina Bell 2011-6-1 n.s. Butte Sacramento Valley. Ca 3 air mi E of Hwy 99, off SE corner of Thermalito Afterbay outlet and ca 170 ft NW of Larkin Road. 42 Comment
  CHSC2425  Lasthenia fremontii R. Carter 1965-3-13 162 Butte On North Table Mountain, these found 40 yds. E of point where Old Cherokee Rd. comes over rim of table, on top of table ca. 15 yds. from rim. 304 Comment
  CHSC278  Lasthenia fremontii J. Turner 1930-4-18 Butte Near Chico Golf Links. Comment
  CHSC56753  Lasthenia fremontii J. D. Jokerst 1980-3-26 Butte East side of Chico; 100 m northeast of junction of Bruce Road and Skyway. Comment
  CHSC45006  Lasthenia glaberrima Lowell Ahart 1979-5-25 1888 Butte On the edges of pond, west of the Western Pacific Railroad, about 2 air miles south of Palermo. 33 Comment
  CHSC46247  Lasthenia glaberrima Vernon Oswald 1989-4-27 3750 Butte Wurlitzer Unit, Vina Plains Preserve. North of the woodland and E of Cana-Pine Creek Rd. 56 Comment
  CHSC93346  Lasthenia gracilis Lowell Ahart 2006-5-3 12557 Butte Base of a basalt outcrop, about 1/2 mile north of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 409 Comment
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Jan 19 2011
  CAS-BOT-BC204903  Lathyrus Saichi Kawahara 1968-5-4 359 Butte Colusa-Hamilton City Road, 1 mile north of Princeton ferry, west bank of Sacramento River 30 Comment
  JEPS127072  Lathyrus angulatus Lowell Ahart 2016-5-30 20896 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
  SD129664  Lathyrus angulatus Barbara Ertter, Lowell Ahart 1986-4-13 5887 Butte Ca. 2 airmiles NNE of Honcut between Oroville & Marysville, Peter Ahart Ranch (mostly used as sheep pasture) 29 Comment
  SEINET12151178  Lathyrus sphaericus C. V. Piper 1906-1 s.n. Butte Chico Comment
  CAS-BOT-BC213290  Lathyrus sulphureus Clarence R. Quick 1952-6-30 52 -96 Butte Ridge top, Big Bar Mt. east of Pulga, Sierra Nevada Comment
  SEINET956196  Lathyrus sulphureus Lowell Ahart 1987-1 5621 Butte South of the Forbestown Ditch, about 2.5 miles north-east of Forbestown. 869 Comment
  SEINET10973184  Lathyrus sulphureus Mary Susan Taylor 1976-4-27 Taylor 1091 Butte Abundant in Yellow Pine Forest, on N or S side of Ponderosa Way, ca. 1-4 mi E of junction of Villas Rd and Cohasset Hwy, ca. 23 mi NE of Chico. 610 Comment
  JEPS124205  Lavandula Lowell Ahart 2015-4-11 20027 Butte About 1/4 mile west of the intersection of Palermo Honcut Highway and Lower Honcut Road, west of Honcut, about 13 miles (air) south Oroville. Comment
  CAS-BOT-BC321778  Layia fremontii E. B. Copeland 1903-4-11 s.n., distributed as Baker's 3039 Butte Chico Comment
  POM183412  Layia fremontii L. S. Rose 1931-4-12 s.n. Butte Honcut Comment
  JEPS120161  Leersia oryzoides Lowell Ahart 2012-9-28 18459 Butte Just east of the east end of Sycamore Pool in Big Chico Creek, Lower Bidwell Park, Chico. Comment
  CAS-BOT-BC527299  Lemna trisulca E. B. Copeland 1930-7-18 404 Butte Jonesville Comment
  CHSC99306  Leontodon saxatilis subsp. longirostris Lowell Ahart 2008-5-21 14768 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
  JEPS114714  Leontodon saxatilis subsp. longirostris Lowell Ahart 2008-5-21 14768 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
  CHSC46257  Lepidium dictyotum var. acutidens V. Oswald; L. Janeway 1989-4-17 3736 Butte Butte Sink Wildlife Area (w portion of Schohr Ranch), between the ranch road and Little Dry Creek near the s gate on Gridley-Colusa Hwy. 18 Comment
  CHSC19949  Lepidium nitidum M. S. Taylor 1975-3-10 410 Butte Ca. 30 yds s of Covered Bridge on Butte Creek, ca. 8 mi e of Chico. Comment
  CAS-BOT-BC89883  Lepidium nitidum Junea Kelley 1920-4-24 s.n. Butte Los Verjils. Comment
  SEINET10448587  Lepidium nitidum Mary Susan Taylor 1973-1 Taylor 58 Butte Upper Bidwell Park, Chico. Associates: Stipa pulchra, Lasthenia chrysostoma, Layia fremontii. 61 Comment
  CHSC103657  Lepidium nitidum var. nitidum Lowell Ahart 2010-3-14 16571 -A Butte Edges of a gravel road, about 50 yards north of the wash, Peter Ahart Ranch, about 1 1/2 miles north and 1 1/4 miles east of Honcut, about 12 miles south of Oroville. 36 Comment
  SBBG128859  Lepidium strictum G. K. Helmkamp, E. A. Helmkamp 2012-4-14 18748 Butte Robinsons Corner, Simpson Rd, just E of jct of E Gridley Rd and CA-70 23 Comment
  CHSC37084  Leptochloa fusca subsp. fascicularis L. Ahart; M. S. Taylor 1982-10-11 3858 Butte Bottom of a ditch, w of check-in station, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  UCD63665  Leptochloa fusca subsp. fascicularis Beecher Crampton 1957-9-17 4619 Butte Biggs Rice Exper. Station, 5 mi. northwest of Biggs. Comment
  CAS-BOT-BC226523  Leptosiphon acicularis Lowell Ahart 1982-5-3 3404 Butte Peter Ahart Ranch, about 1 1/2 miles north and 2 1/4 miles east of Honcut 50 Comment
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Jul 19 2018
  CHSC109164  Leptosiphon ciliatus Lowell Ahart 2012-5-12 18039 Butte On the west side of an old road, Humboldt Trail, about 1/10 mile west of Highway 32, south part of Upper Bidwell Prk, about 7-1/2 miles (air) northeast of Chico. 414 Comment
  CHSC2429  Leptosiphon ciliatus R. Carter 1965-6-21 251 Butte Found on Oroville-Quincy Rd. at Merrimac, 5.5 mi. N of Mountain House, E 10' from road and S 15' from creek. 1176 Comment
  JEPS119765  Leptosiphon ciliatus Lowell Ahart 2012-5-12 18039 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
  UC1287398  Lessingia nana Willard Spence 1960-9-7 624 Butte 0.5 mi off Rt. 99E on Cana Pine Creek Rd. (approximately half way between Chico and Vina) Comment
  CHSC62431  Lessingia nemaclada L. P. Janeway 1993-8-23 4538 Butte Plumas National Forest. South end of Swayne Hill. Along edge of dirt road 23N28. 731 Comment
  CHSC98889  Lessingia nemaclada L. P. Janeway 2007-10-8 9216 Butte Cascade Range Foothills. Upper Bidwell Park, Chico; near North Rim Trail along ridge overlooking Salmon Hole. 351 Comment
  JEPS20646  Lessingia nemaclada R. F. Hoover 1938-8-2 3721 Butte Magalia Comment
  RSA754883  Lessingia nemaclada L. Ahart 2009-6-30 15965 Butte About 150 yards N of a small drainage, along the Guardian Rock Trail, about 150 yards SW of Pine Trail, about 1/2 air mile SW of the intersection of Ten Mile House Road and Highway 32, Upper Bidwell Park, about 10 miles NE of Chico. 399 Comment
  CAS-BOT-BC341791  Lessingia nemaclada L. P. Janeway 1993-9-3 4580 Butte Plumas National Forest, Oroville Ranger District. Along dirt road to Bear Ranch Creek falls from Hwy 70; in canyon of North Fork Feather River 487 Comment
  RSA79046  Lessingia nemaclada E. K. Balls, Percy C. Everett 1952-10-14 18215 Butte 2.4 miles southwest of Butte-Plumas county line on Highway 24 274 Comment
  CDA8204  Lessingia virgata L. Ahart 2003-8-3 10464 Butte About 2 1/2 miles north and 2 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville. Comment
  CHSC52001  Lessingia virgata B. Castro 1987-9-25 227 Butte Fernandez Grant area. Field at jcn Biggs East Rd and Dos Rios Rd at e side of East Biggs. 33 Comment
  JEPS104646  Lessingia virgata Lowell Ahart 2003-8-3 10464 Butte On the w side of North Honcut Creek, ca 2 1/2 mi n and 2 1/2 mi e of Honcut, ca 12 mi (air) se of Oroville. 60 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
  CHSC10792  Lewisia rediviva Lowell Ahart 1968-3-17 Butte Table Mountain, Oroville. 243 Comment
  SEINET10572650  Lewisia rediviva Mary Susan Taylor 1973-1 Taylor 14 Butte Table Mountain, ca. 8 mi N of Oroville. Rolling Valley Grassland with thin soils over volcanic rocky flats occasionally exposed into outcrops, dropping steeply off at the sides showing basaltic columns. 373 Comment
  UCD13237  Lewisia rediviva Bot. 108 student - Ray? 1974-4-8 79 Butte California: Butte Co. Near Oroville, between Route 1330 and Coal Canyon. Elev. ca. 500 ft. 152 Comment
  JEPS94189  Lilaea scilloides Lowell Ahart 1998-4-29 7954 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-BC509477  Lilium kelleyanum Chester Dudley 1940-6-1 s.n. Butte Near Magalia Comment
  CHSC4681  Lilium washingtonianum subsp. washingtonianum R. Carter 1966-6-15 439 Butte 1.5 mi. S of Brush Creek along W side of Bald Rock Rd. Comment
  CHSC49660  Lilium washingtonianum subsp. washingtonianum Vernon Oswald 1983-7-6 810 Butte Near Calif. Hwy. 32, 11.7 mi n-e of Forest Ranch. 1158 Comment
  CAS-BOT-BC133041  Lilium washingtonianum subsp. washingtonianum M. S. Taylor; J. D. Jokerst; L. Ahart 1980-8-2 3211 Butte Humboldt Peak, s end of peak, and w side off the trail 2154 Comment
  CHSC41229  Limnanthes alba J. D. Jokerst 1985-3-30 2187 Butte Roadside ditch. North edge of Wookey Rd, ca 1/2 mile east of Meridian Rd. 91 Comment
  CHSC62828  Limnanthes alba Ella Icard 1893-4-1 Butte Comment
  SEINET10495211  Limnanthes alba Mary Susan Taylor 1976-4-27 Taylor 1094 Butte Abundant in Yellow Pine Forest, on N or S side of Ponderosa Way, ca. 1-4 mi E of junction of Villas Rd and Cohasset Hwy, ca. 23 mi NE of Chico. 610 Comment
  CHSC38538  Limnanthes alba subsp. alba Vernon Oswald 1983-4-18 337 Butte Upper Bidwell Park, Chico, on the north rim near the head of the west intermittent stream which flows into Sycamore Creek (4000 ft e of the power lines). 286 Comment
  CHSC111363  Limnanthes alba subsp. versicolor Lowell Ahart 2012-5-4 17986 Butte About 200 feet south of stream in Beatson Hollow, about 1 1/4 mile NW of the iron gate on the north side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  JEPS122228  Limosella acaulis Lowell Ahart 2014-4-26 19413 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
  SEINET10548868  Limosella acaulis Lowell Ahart 1985-4-20 Ahart 4876 Butte On the floor of a rice field, Peter Ahart Ranch, about 2 miles north and 1/8 mile east of Honcut, about 12 miles south of Oroville. Comment
  CHSC82232  Limosella aquatica Lowell Ahart 2002-4-14 9483 Butte Area between the Railroad and the Midway Road, 50 yards south of Nelson Dlavo Road, in Nelson. 36 Comment
  CHSC47039  Linanthus dichotomus R. A. Schlising; J. D. Jokerst 1985-4-8 4462 Butte N of Hwy 70 crossing of Lake Oroville and SW of village of Yankee Hill. Comment
  CHSC49844  Linanthus dichotomus Vernon Oswald 1990-4-4 4150 Butte Lime Saddle Recreation Area on the West Branch of Lake Oroville, ca. 0.2 mi ne of Nelson Bar Launch, ca. 0.2 mi se of Lime Saddle Powerhouse. 304 Comment
  CHSC45235  Linanthus pungens L. P. Janeway 1988-6-16 2801 Butte Outcrop above Butte Cr; along rd in W side of the cyn 3.0 mi S of Humboldt Rd. 1310 Comment
  CHSC113360  Lindernia dubia var. anagallidea Lowell Ahart 2014-4-25 19400 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
  JEPS120608  Lindernia dubia var. anagallidea Lowell Ahart 2013-11-13 19237 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
  SD2733  Linum lewisii E. B. Copeland 1929-7-17 Butte Above Jonesville 2000 Comment
  UC109513  Linum lewisii T. S. Brandegee 1902-6-28 Butte Jonesville Comment
  CHSC109570  Linum lewisii var. lewisii L. P. Janeway 2012-6-7 10867 Butte Northern High Sierra Nevada. Southwestern spur of Rocky Ridge, 0.6 air km south of Batchelor Point; along Road 23N06E 0.8 road km southeast of Rim Road/Ponderosa Way. 895 Comment
  CHSC40374  Linum lewisii var. lewisii Lowell Ahart 1985-5-15 4993 Butte On dry rocky red serpentine soil, east of a small stream, 1/8 mile east of the dirt road, about 1 1/2 miles north-east of Concow Res. 731 Comment
  JEPS95811  Lipocarpha micrantha Lowell Ahart 1999-10-28 8301 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
  CAS-BOT-BC111975  Lipocarpha micrantha Lowell Ahart 1969-9-9 s.n. Butte Peter Ahart Ranch, Honcut. Along North Honcut Creek. 150 Comment
  UCSC000178  Lithocarpus densiflorus F. W. Foxworthy 1936-8-19 s.n. Butte forty miles east of Chico 1097 Comment
  CDA14774  Lithocarpus densiflorus var. densiflorus G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-26 3377 Butte 1.1 miles northeast of Mountain House. 1051 Comment
  CAS-BOT-BC432265  Lithophragma campanulatum Mary E. Wall 1935-4-14 s.n. Butte Between Cherokee & Oregon City Comment
  CHSC23721  Lobularia maritima L. V. Ritter 1969-4-12 144 Butte Ca 50 yds. s of Sandy Gulch, ca 200 yds. e of Longfellow Bridge Chico. 76 Comment
  CHSC26713  Logfia gallica M. P. Hayes 1978-4-7 152 Butte On top of ne butte on Butte College campus at the corner of Pentz and Clark roads. 170 Comment
  CAS-BOT-BC342385  Logfia gallica A. A. Heller 1914-6-2 11148 Butte Hills 8 miles north of Oroville Comment
  CHSC29762  Lolium multiflorum J. D. Jokerst 1980-4-21 629 Butte Along edges of vernal streams flowing into Coal Cr. Top of North Table Mt, N of Cherokee Rd. 381 Comment
  CHSC4426  Lolium multiflorum 1966-5-21 Butte Upper Bidwell Park, near Bare Hole, Chico. Comment
  UCD66065  Lolium multiflorum A. A. Heller 1914-5-19 11420 Butte 8 miles north of Oroville. Comment
  SEINET10894235  Lolium multiflorum Moyer 1972-4-9 MOYER 172 Butte In Chico. Sacramento Avenue, across from sportshop. Plants of CSUC Campus. 61 Comment
  SEINET10960424  Lolium multiflorum Laurel L. Huey 1980-4-25 Huey 19 Butte T22N, R1E, Sec 10, (Richardson Springs SW Quad 15'). Immediately S of Chico Muni Airport, W of Cohasset Highway. 60 Comment
  CAS-BOT-BC269075  Lolium perenne John Thomas Howell; Gordon H. True 1967-6-11 42557 Butte On northwest side of Feather River Canyon near Pulga Bridge Comment
  CHSC8241  Lolium temulentum J. G. Moore 1969-5-7 38 Butte Cohasset Rd., 3 mi. e of Rock Creek Rd. on s side of road. 106 Comment
  JEPS16101  Lomatium caruifolium var. denticulatum W. L. Jepson 1934-5-4 16617 Butte 1 1/2 mi. n.e. Cana Comment
  CHSC28975  Lomatium dasycarpum subsp. tomentosum J. D. Jokerst 1980-3-12 469 B Butte Ca 1.0 mi E of Chico Municipal Airport. 60 Comment
  UC726871  Lomatium dasycarpum subsp. tomentosum A. A. Heller 1939-4-14 15380 Butte near Pine Creek (in field along rd. e. of U.S. #99E) Comment
  CHSC87777  Lomatium dissectum var. multifidum Paul Maslin 2004-4-30 30 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). UTM: 10610592E 4410317N. 457 Comment
  CHSC42614  Lomatium macrocarpum Vernon Oswald 1985-5-2 1746 Butte Concow Rd. 0.1 mi s of its jct. with Ponderosa Way. 975 Comment
  SEINET8056664  Lonicera hispidula M. J. Williams 1984-5-25 84- 34 -1 Butte Feather River Canyon, Hwy 70, 1.5 mile W of Poe Power Dam. 457 Comment
  CAS-BOT-BC240687  Lonicera interrupta Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  SFV11725  Lonicera interrupta M. L. Vincent 1967-7-1 728 Butte Sierra Nevada Paradise. Corner De Mille Road and Harrison Road. 515 Comment
  SEINET12331841  Lonicera interrupta Unknown 1985-1 5065 Butte Lumpkin Ridge, 1.5 mi E of Camp 18, about 8 mi NE of Feather Falls, 120 yards S of dirt road 975 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
  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
  CDA31942  Lotus humistratus L. Ahart 2008-5-12 14755 Butte Below the high water line of Lake Oroville, on the east side of Sucker Creek, about 40 yards east of where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile west of the Ponderosa Dam. Comment
  JEPS43471  Lotus humistratus Joan O. Danielson 1966-4-6 23 Butte just s Oregon Gulch Road (Cherokee Road) Comment
  SEINET10940035  Lotus nevadensis Lowell Ahart 1985-5-31 Ahart 5039 Butte At the Enterprise Launch Area, about 3/4 mile west of the Enterprise Bridge across Lake Oroville, north-east of Oroville. Comment
  SEINET10940036  Lotus oblongifolius Mary Susan Taylor, M. Hayes 1977-6-27 Taylor 1395 Butte Butte College Campus, ca. 15 mi SE of Chico via Hwy 99 & Pentz Rd. Comment
  JEPS93819  Ludwigia palustris Lowell Ahart 1998-6-30 8013 Butte about 7 air mi n of Oroville (w of the Ione oak tree, w of the cow chute on the w side of Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 403 Comment
  CHSC26808  Ludwigia peploides M. S. Taylor 1978-5-7 1608 Butte In irrigation ditch in Richvale vernal pool area, ca. 20 mi s of Chico on w side of Hwy 99. 30 Comment
  CHSC75970  Ludwigia peploides subsp. montevidensis Lowell Ahart; Vernon H. Oswald 1999-8-13 8172 Butte Along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  UC726731  Lupinus A. A. Heller 1942-6-16 16510 Butte State Highway #24, 2 1/2 mi w Arch Rocks Tunnel; w of Arch Rocks Tunnel Comment
  CAS-BOT-BC198303  Lupinus Charles Piper Smith 1949-4-21 49118 Butte Cherokee Comment
  CHSC24660  Lupinus albicaulis Keith Lickey 1976-4-9 55 Butte Hwy 70 ca 1 km ne of Concow Rd; on north shoulder. 609 Comment
  LA205032  Lupinus albicaulis E. B. Copeland; 1929-7-17 378 Butte above Jonesville 2100.0 Comment
  RSA0036364  Lupinus albicaulis Daisie Huang 2006-8-3 06080306 Butte Butte. 1327 Comment
  UC727111  Lupinus albicaulis A. A. Heller 1940-6-5 15704 Butte along the Feather River Highway between Pulga and Arch Rock Tunnel; Feather River Highway btw Pulga and Arch Rock Tunnel Comment
  UC865406  Lupinus albicaulis A. A. Heller 1937-5-31 15339 Butte on Highway #24 near the junction of the Yankee Hill Road about 21 mi from Oroville Comment
  RSA31851  Lupinus albicaulis subsp. purpurascens A. A. Heller 1941-5-22 16138 Butte About a half mile west of Jarboe Pass on state Highway #24. Comment
  SEINET10488406  Lupinus albifrons Mary Susan Taylor 1981-5-5 Taylor 3605 Butte T20n,r6e,sec.31 se 1/4, nw 1/4. Forbestown quad. E side of lumpkin-laporte Road, 1 mile n of enterprise bridge over s fork feather river, ca 10 air miles E of oroville. Granitic soils. Assoc.; Diplacus grandiflorus, lupinus Stiversii, trifolium ciliolatum 457 Comment
  CAS-BOT-BC201351  Lupinus albifrons var. albifrons Charles Piper Smith 1949-4-21 49126 Butte Nimshew - 6.8 miles south - Chico Road Comment
  RSA325884  Lupinus andersonii var. andersonii L. Ahart, P. Ahart 1983-7-29 4250 Butte Ca. 3 mi e of Milsap Bar, ca. 25 mi ne of Oroville. 1100 Comment
  CHSC90490  Lupinus bicolor Andrew D. Lane 1984-4-22 9 Butte Salmon Hole, ca. 6.7 km ne of jct of Hwys 99 and 32, ca. 50 m n of Big Chico Creek. 115 Comment
  CHSC90515  Lupinus bicolor Michael D. Mayes 1983-4-19 16 Butte Ca. 6 mi ese Chico s side of Butte Creek, 75 yds w of Covered Bridge. 152 Comment
  JEPS119696  Lupinus bicolor Lowell Ahart 2012-5-2 17952 Butte West of the Government Pole Line, Upper Bidwell Park, about 1 mile east of Chico. Comment
  SEINET7073625 Image available Lupinus bicolor A. G. Vestal 1955-5-21 s.n. Butte About 5.8 miles east of Oroville on the Olive Highway. UTM Zone 10, 631906mE, 4373738mN. Coordinate datum: NAD27. Comment
  UCD77845  Lupinus bicolor Robert E. Preston 2004-3-23 2207 Butte Chico, SW of jct Humboldt Rd and Bruce Rd 79 Comment
  HSC23337  Lupinus bicolor D. C. Polen 1971-4-8 30 Butte 3.5 mi. E on Skyway from its junction with Hwy. 99E Chico. Comment
  SEINET10838149  Lupinus bicolor subsp. tridentatus Johnson 1978-4-16 Johnson 2 Butte Corolla blue, with purple-spotted white patch on banner. E side of cohasset Rd. At lassen ave., 3 Mi. N of chico, butte co, calif. At edge of moist Pasture in gravelly loam with grass and other annuals of valley grassland. 61 Comment
  SEINET10871252  Lupinus grayi Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4721 Butte About 1 1/2 mile south-east of Bald Mountain, 3/4 mile west of Oak Point, about 4 miles north-east of Stirling City. Comment
  SEINET10452693  Lupinus latifolius subsp. longipes Mary Susan Taylor, Lowell Ahart 1981-8-16 Taylor 4197 Butte T25 N R5E SW 1/4 sec 29. Pulga NW quad. Jones Meadow, ca. 3 mi S of Philbrook Reservoir, ca. 6 mi NE of Stirling City. Montane Meadow. 6000 ft. 1829 Comment
  UC725984  Lupinus latifolius var. columbianus A. A. Heller 1919-6-7 13224 Butte Snow Mountain Comment
  CHSC101153  Lupinus microcarpus var. densiflorus Lowell Ahart 2009-5-15 15703 Butte About 20 yards east of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 234 Comment
  CHSC84647  Lupinus microcarpus var. microcarpus Matt Quinn 2001-4-26 53 Butte Approximately 1500 feet east of Clark Road and 1/2 mile south of Fallager Creek. 85 Comment
  CHSC34684  Lupinus nanus M. S. Taylor 1981-5-5 3601 Butte E side of Lumpkin-LaPorte Rd, 1 mi n of Enterprise bridge over south fork Feather River, ca. 10 air mi e of Oroville. 457 Comment
  UC865523  Lupinus nanus A. A. Heller 1915-5-25 11890 Butte on the Forbestown road 15 mi e Oroville; e of Oroville 457 Comment
  UCD109008  Lupinus nanus A. A. Heller 1919-3-29 13105 Butte Cherokee mine. 457 Comment
  UCD109079  Lupinus nanus P. B. Kennedy 1914-5-8 4764 Butte Grade to Paradise. 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
  CHSC48536  Lupinus obtusilobus Vernon Oswald; Lowell Ahart 1987-7-1 3069 Butte Humbug Rd. 0.3 mi w of Butte Creek, ca. 2 mi (air) ese of Jonesville. 1755 Comment
  CHSC109091  Lupinus pachylobus Lowell Ahart 2012-4-20 17890 Butte North edge of the trail, about 50 yards east of Big Chico Creek, about 100 yards west of Ten Mile House Road, about 3/4 mile west of Highway 32, about 9 miles northeast of Chico, south part of Upper Bidwell Park. 202 Comment
  JEPS104131  Lupinus pachylobus Lowell Ahart 2003-4-8 10043 Butte About 40 yd and in the small canyon w of the tall Digger Pine on the south side of Beatson Hollow, ca 3/4 mi nw of the iron gate and fence, nw of Cherokee Rd, North Table Mountain, ca 7 mi (air) n of Oroville. 314 Comment
  CHSC40607  Lupinus polycarpus Lowell Ahart 1985-4-1 4873 a Butte Along Table Mountain Boulevard, near the Cambell Overflow, a little south of the intersection of Highway 70 and 149, about 7 miles north of Oroville. 100 Comment
  POM193372  Lupinus polyphyllus subsp. superbus E. B. Copeland 1930-7-11 422 Butte Jonesville. 1500 Comment
  SD48504  Lupinus stiversii E. K. Balls 1957-5-22 22510 Butte Near Tobin's, ca. 7 miles NE of Butte-Plumas county line, mostly disturbed areas in sun 640 Comment
  SEINET10452666  Lupinus stiversii Mary Susan Taylor 1980-4-18 Taylor 2529 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
  SEINET10452667  Lupinus stiversii Mary Susan Taylor 1981-5-5 Taylor 3596 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
  CHSC41289  Luzula cascadensis S. C. Morey 1983-7-21 496 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  CHSC52706  Luzula cascadensis L. P. Janeway 1987-6-19 2227 Butte Along Sly Creek, 2.1 mi from the Challenge-LaPorte Rd along the road to the SE side of Sly Creek Reservoir. 1097 Comment
  JEPS117605  Luzula cascadensis Lowell Ahart 2010-9-28 17260 Butte West edge of a 10 acre meadow, about 50 yards east of the poor dirt road, about 20 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir 1886 Comment
  JEPS87449  Luzula comosa Vernon H. Oswald and Lowell Ahart 1993-4-21 5289 Butte ca. 2.25 (air) mi. n.w. Magalia (Middle Butte Creek Trail on w. side of creek & on upstream side of Ponderosa Way); Middle Butte Creek Trail 707 Comment
  CHSC36524  Luzula macrantha L. Ahart 1982-5-8 3411 Butte On the north slope above the dirt road, ca. 1/2 mi sw of the Forbestown Reservoir, ca. 4.5 mi ne of Forbestown. 800 Comment
  CHSC55304  Luzula parviflora Lowell Ahart 1991-8-25 6705 Butte Forest Rd 23N60 (Jordan Creek-Marble Creek Rd) just south of Jordan Creek, east of Oroville-Quincy Hwy, ca. 5.75 miles (air) northeast of Brush Creek. 1082 Comment
  CHSC61354  Luzula parviflora Lowell Ahart 1993-7-23 7108 Butte On the sides of a small stream, south of Fall River, about 1/8 mile south of the campgrounds on the large gravel bar along Fall River, about 6 (air) miles north-east of Feather Falls. 1036 Comment
  CHSC110347  Luzula subsessilis L. P. Janeway 2013-5-5 11098 Butte Northern High Sierra Nevada. Plumas National Forest; eastern slope of Bloomer Hill, 1.0 air km east of the top. 701 Comment
  JEPS114964  Luzula subsessilis Lowell Ahart 2008-5-8 14724 Butte Below the high water line of Lake Oroville, about 50 yards south of the poor parking area, McCabe Creek area, about 3/4 mile southwest of the Enterprise Bridge, about 11 miles (air) east of Oroville 264 Comment
  CHSC28000  Lychnis coronaria M. S. Taylor 1978-7-21 1821 Butte On s side of Oroville-Quincy Hwy along creek, ca. 14 mi n of Lake Madrone. 1463 Comment
  CHSC31790  Lycopus americanus L. Ahart 1973-8-13 270 Butte Peter Ahart Ranch, Honcut. In North Honcut Creek. 45 Comment
  JEPS88581  Lycopus americanus Vernon H. Oswald and Lowell Ahart 1996-7-22 8079 Butte edge of farm rd. crossing branch of Angel Slough w. Refuge H.Q.'s (s.e. corner of Tract 1-Sanctuary 1, U.S. Fish & Wildlife Service parcel betw 7 Mile Lane & Sacramento R.); Sacramento R. Nat'l Wildlife Refuge, Llano Seco Unit 32 Comment
  CHSC1029  Lythrum hyssopifolia V. Holt 1935-5-28 Butte Butte Creek canyon. 91 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
  JEPS98519 Image available Lythrum salicaria Lowell Ahart 2000-7-2 8551 Butte Wet area on the east side of Highway 70, a little north of Garden Drive, north of Thermalito, about 1 1/2 miles north of Oroville. 73 Comment
  SEINET3450906  Madia elegans Unknown 2003-6-30 10321 Butte Forbestown, Forbestown, about 2 miles air northwest, east side of Ponderosa Way, about 2 miles by road southwest of the Ponderosa Dam 570 Comment
  CHSC45220  Madia exigua Lowell Ahart 1979-6-9 1929 Butte Near a dirt road, about 1/4 mile east of Magalia. 640 Comment
  JEPS120500  Madia exigua L. P. Janeway 2012-6-7 10861 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. Comment
  CHSC34710  Madia gracilis M. S. Taylor; R . Schlising, L. Ahart 1980-5-31 2752 Butte Kunkle Reservoir, on e side of Pentz-Magalia Hwy, ca. 2 mi se of Paradise. 441 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
  CAS-BOT-BC342952  Madia gracilis David D. Keck 1930-7-25 979 Butte Four miles west of Forbestown on Oroville road, eastern Butte County 760 Comment
  CHSC111156  Madia subspicata Lowell Ahart 2012-6-9 18178 Butte On the east side of Guardian Trail, about one mile south of Tem Mile House Road, about 1/8 miles west of Highway 32, Upper Bidwell Park, about 8 miles northeast of Chico. 370 Comment
  CHSC6010  Magnolia grandiflora M. MacArthur 1968-6-19 251 Butte Front Lawn Administration Building, Chico State College. 60 Comment
  POM182758  Maianthemum racemosum subsp. amplexicaule Kate Conger 1907-1 s.n. Butte Brush Creek Comment
  CHSC101814  Malva nicaeensis Lowell Ahart 2009-6-12 15840 Butte At the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  CHSC109059  Malva parviflora Lowell Ahart; Linnea Hanson, Kaline Le Coq, Josephine Guardino 2012-4-27 17915 Butte On the south side of the path, near Table 17, on the north side of Centennial Avenue, Lower Bidwell Park, Chico. 80 Comment
  JEPS119502  Malva parviflora Lowell Ahart, John Dittes, Josephine Guardino 2012-4-6 17815 Butte On the north side of Big Chico Creek, Lost Park in Bidwell Park, City of Chico. Comment
  UC196260  Marah fabacea A. A. Heller 1914-3-12 11193 Butte Canyon of Big Chico Creek 76 Comment
  CHSC3467  Marah fabacea var. agrestis Roger Jaegel 1966-3-2 17 Butte 4 miles northeast of Chico. Along the bank of Big Chico Crk. Upper Bidwell Park. Comment
  JEPS115503  Marrubium vulgare Lowell Ahart 2009-6-12 15845 Butte 10 yards north of Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove, Lower Bidwell Park, Chico 67 Comment
  SEINET10530351  Marsilea vestita Mary Susan Taylor 1980-7-6 Taylor 3051 Butte T23N R1E nw sec 20, Richardson Springs quad; ca. 1 mi E of Meridian Rd, ca. 1/4 mi NE of its jct with Hwy 99, ca. 8 mi N of Chico. With R.A. Schlising. 67 Comment
  CHSC389  Matricaria discoidea B. Richardson 1929-4-16 Butte CSC Campus. 54 Comment
  CHSC2397  Meconella californica R. Carter 1965-3-14 164 Butte 457 Comment
  CHSC4621  Meconella californica R. Carter 1966-3-13 296 Butte Found ca. 6 mi. E of Chico at intersection of Honey- Run Rd. and Humbug Rd. in Butte Cr. Canyon. Growing at margin of open area 50 yds. up slope on S side of canyon. Comment
  CHSC7075  Meconella californica M. I. Moore 1969-4-26 5 Butte Ca. 1000 yds. e of Big Chico Creek. e of covered bridge on Honey Run Rd., Chico. 106 Comment
  CAS-BOT-BC422645  Meconella californica A. A. Heller 1921-3-27 13535 Butte Near the Butte Creek bridge on the Honey Run road. Comment
  JEPS119788  Medicago lupulina Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18000 Butte South of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  CHSC34613  Medicago polymorpha W. K. Cheechov 1978-4-14 10 Butte Ca 50 ft n of Airport Blvd., 200 yds e of terminal building at Chico Airport. 91 Comment
  JEPS95061  Melica aristata Lowell Ahart 1997-8-1 7804 Butte about 6 air mi ne of Stirling City (on s side of the County Road, sw of Keyser Creek, about 1 1/2 mi se of Bald Mountain); County Road 1432 Comment
  RSA700242  Melica aristata L. Ahart 2004-7-23 11299 Butte On the east side of the road, north of the West Branch Campground, south of the bridge across the West Branch of the Feather River, about 1.5 miles (air) west of Philbrook Reservoir Dam., About 3.75 miles (air) southeast of Butte Meadows. 1457 Comment
  CHSC8226  Melica californica D. McClain 1969-5-1 67 Butte 15 yds. s. of Cohasset Rd., 3.2 mi e. of Cohasset. 457 Comment
  CHSC8251  Melica californica B. Hamilton 1969-4-17 16 Butte Found near Horseshoe Lake in Bidwell Upper Park. Comment
  CHSC82664  Melica californica Tara Morgan 2002-4-23 37 Butte Found along the south rim trail located on the east side of Big Chico Creek. Located down from the green gate trail of Highway 32. 414 Comment
  CHSC115277  Melica californica var. californica Lowell Ahart 2015-4-30 20122 Butte About 1/4 mile south of Forbestown Reservoir Road, about 2 1/2 miles (air) northeast of Forbestown. Chaparral. 890 Comment
  CHSC101464  Melica geyeri L. P. Janeway; Sarah Starkey 2009-7-13 9855 Butte Northern High Sierra Nevada. Northwest side of Concow Road 2.8 air km northeast of upper end of Concow Reservoir, 1.5 road km northeast of Cirby Creek Road. 823 Comment
  CHSC116593  Melica harfordii L. P. Janeway 2015-6-17 11782 Butte Northern High Sierra Nevada. Plumas National Forest; along east side of Lower forbestown Road 0.6 km north-northeast of Ponderosa Way; 0.4 air-km west-northwest of Sunset Hill. 826 Comment
  CHSC42928  Melica harfordii Lowell Ahart 1987-7-8 5798 Butte Along Big Bar Mountain Road, about 3 miles south-west of Coyote Gap, south-east of Pulga. 1280 Comment
  CAS-BOT-BC262505  Melica torreyana Lowell Ahart 1987-7-3 5752 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 487 Comment
  CDA38796  Melilotus albus L. Ahart 2012-6-28 18243 Butte On the north side of Big Chico Creek, east of Sycamore Pool, Lower Bidwell Park, Chico. Comment
  CHSC50325  Melilotus officinalis Vernon Oswald 1990-5-29 4259 Butte Hwy 99-Hwy 32 interchange in Chico. 65 Comment
  CDA42940  Mentha arvensis L. Ahart 2012-10-2 18495 Butte Soil and gravel bar on the south side of Big Chico Creek, about 50 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CAS-BOT-BC7430  Mentha arvensis f. brevipilosa Amos Arthur Heller 1914-7-11 11561 Butte Chico-Hamilton road, 6 miles NW of Chico Comment
  JEPS98512  Mentha pulegium Lowell Ahart 2000-7-17 8593 Butte On the west side of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 51 Comment
  CDA5710  Mentha pulegium L. Ahart 2001-6-1 8746 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. Comment
  CHSC78519  Mentha spicata Lowell Ahart 2000-8-30 8675 Butte Margins of a large pond, about 100 yards south of the Feather River, east of the break in the levee, about 1/2 mile (air) west of Pacific Heights Road, Oroville Wildlife Area, about 3 1/3 miles (air) southwest of Oroville. 42 Comment
  UC196321  Mentha spicata A. A. Heller 1914-8-20 11687 Butte hills 8 mi n Oroville Comment
  RSA0058979  Micranthes californica Lowell A. Ahart 2012-4-9 17825 Butte Seeps on the southeast bank of Big Chico Creek, about 20 yards northwest of South Rim Trail, south part of Upper Bidwell Park, about 3/4 mile east of the power lines, about 1 3/4 miles (air) northeast of Chico. 96 Comment
  CAS-BOT-BC428993  Micranthes fragosa J. D. Jokerst; M. S. Taylor 1980-2-23 447 Butte Ca. 1/4 mi ne of Neal Rd, ca. 7 mi s of Chico. Comment
  CHSC101092  Micranthes integrifolia Lowell Ahart; John Dittes 2009-3-20 15510 Butte Open area west of the Guardian Rock Trail, about 175 yards southwest of the Ten Mile House Road Trail, about 300 yards west of Highway 32, west of the intersection of Highway 32 and Ten Mile House Road, Upper Bidwell Park, about 10 miles northeast of Chico. 407 Comment
  CHSC4656  Micranthes integrifolia R. Carter 1966-3-13 294 Butte Found ca. 6 mi. E of Chico at intersection of Honey-Run Rd. and Humbug Rd. in Butte Cr. Canyon; slope ca. 25 yds. up slope on S side canyon. Comment
  CHSC42857  Micranthes nidifica Lowell Ahart 1987-5-22 5664 Butte In a small wash, about 1/4 mile southeast of Lumpkin Ridge Road, about 1 1/2 miles east of Camp 18, about 8 miles northeast of Feather Falls. 1280 Comment
  SEINET10475175  Micropus californicus Lowell Ahart, Peter Ahart 1983-6-12 Ahart 4043 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
  SEINET10971130  Micropus californicus Lowell Ahart, James D. Jokerst 1985-3-24 Ahart 4852 Butte Serpentine Point, west of Yankee Hill. Comment
  CHSC12125  Micropus californicus var. californicus K. O. Grigsby 1972-4-26 4 Butte In Chico city limits on Skyway, intersection of Notre Dame Blvd. 60 Comment
  HSC32400  Micropus californicus var. californicus Gary S. Lester 1974-4-20 102 Butte Along Pentz Rd. 300 yds. S of intersection with Clark Rd. 76 Comment
  CHSC31606  Microseris douglasii subsp. tenella L. Ahart 1979-5-11 1866 Butte Peter Ahart Ranch, Honcut. In fields. 50 Comment
  CHSC20962  Microsteris gracilis M. S. Taylor 1974-3-5 78 Butte On old dirt road parallel to Cohasset Road, near entrance to Seven-toed Pete's Wildlife Reserve, ca. 6 mi n of Chico. Comment
  CHSC21050  Mimetanthe pilosa M. S. Taylor 1975-10-3 938 Butte Scattered on sand bar on Sacramento River, ca. 1/4 mi n of the washout on River Rd, ca. 10 mi w of Chico. 36 Comment
  UC1012167  Mimulus aurantiacus var. grandiflorus F. W. Pennell and A. A. Heller 1940-6-5 25677 Butte 10-12 mi above Oroville (Route 24); Feather River 182 Comment
  POM5059  Mimulus bicolor A. A. Heller, H. E. Brown 1902-5-12 5545 Butte Grade between Clear Creek and Paradise. Comment
  JEPS118486  Mimulus breweri Lowell Ahart 2011-7-9 17562 Butte Open area of almost bare rock about 1/4 mile east of Little Bald Rock, about 2 miles (air) southeast of Brush Creek, about 15 miles (air) northeast of Oroville 1009 Comment
  JEPS115643  Mimulus cardinalis Lowell Ahart 2009-8-23 16290 Butte About 30 yards west of the seep at the base of a large rock, northwest of a broad open drainage in oak woodland, about 150 yards northwest of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) west of Highway 32, about 10 266 Comment
  RSA309183  Mimulus glaucescens Robert F. Hoover 1936-5-21 1158 Butte 3 miles north of Chico Comment
  UC26940  Mimulus glaucescens Mrs. R. M. Austin March 1898 2104 Butte Comment
  UCD122718  Mimulus glaucescens F. J. Fuller 1982-4-18 20 Butte ca. 0.5 mi sw of Hwy 32 on Crown Pt Rd, 11 mi nw of Chico. 548 Comment
  UCD96099  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
  SEINET10830513  Mimulus glaucescens Mary Susan Taylor, Vernon H. Oswald 1984-4-4 Taylor 5383 Butte T22N R2E nw sec 25. N side of Humbug Rd, ca. 0.5 mi E of Honey Run Covered Bridge, ca. 6 air mi E of Chico. Foothill Woodland; 600 ft elev. 183 Comment
  LA209359  Mimulus guttatus E. B. Copeland; 1929-7-28 sn Butte Jonesville 1500.0 Comment
  SEINET10570356  Mimulus guttatus Mary Susan Taylor 1975-4-26 Taylor 534 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
  UC103777  Mimulus kelloggii Mrs. R. M. Austin May 1896 157 Butte Iron Canyon Comment
  RSA535808  Mimulus kelloggii David M. Thompson, Vernon H. Oswald 1988-3-24 852 Butte Upper Bidwell Park, Chico. 2.9 mi. beyond (N of) 4 barrels and sign in middle of road; just beyond end of paved road. W side of road on small cavelike rock formation on hillside, ca. 100 ft from road. 244 Comment
  CHSC44793  Mimulus moschatus R. Banchero 1980-6-19 254 Butte Along Concow Rd 1.3 mi N of its jct with Hwy 70, 0.3 mi N of the town of Concow. 518 Comment
  POM193322  Mimulus primuloides var. pilosellus E. B. Copeland 1929-7-13 459 Butte Jonesville. 1550 Comment
  UC129114  Mimulus torreyi Miss Kate Conger 1907-1 Butte Brush Creek Comment
  UC1125782  Minuartia californica J. E. Sowder 1935-6-10 601 Butte 6 mi se Durham; Chico Quadrangle Comment
  SEINET10899189  Minuartia douglasii Mary Susan Taylor 1981-5-7 Taylor 3644 Butte T20N R6E se/se sec 25, Clipper Mills quad. Along spur rd, ca. 0.5 mi SE of its jct with Fields Ridge Rd-20N24.6, ca. 3 air mi S of Feather Falls community. Yellow Pine Forest; 3200 ft. 975 Comment
  CAS-BOT-BC433046  Mitella pentandra E. B. Copeland 1930-6-24 644 Butte Jonesville 1500 Comment
  JEPS29837  Mollugo verticillata Rimo Bacigalupi and L. R. Heckard 1962-6-1 8581 Butte road to Centerville (about 200 ft e of its inception at the Paradise Road Junction) 60 Comment
  RSA65745  Mollugo verticillata F. W. Peirson 1926-6-20 6762 Butte Banks of Sacramento River, 5 miles west of Chico. Comment
  SEINET12331805  Monardella lanceolata Unknown 1984-1 4662 Butte Along Ponderosa Way, ca 1/8mi W of Ponderosa Dam, ca 2mi NW of Forbestown, Yellow Pine Forest 370 Comment
  POM252836  Monardella lanceolata var. lanceolata A. A. Heller 1938-7-2 15244 Butte West of Arch Rock Tunnel on Feather River Hwy. Comment
  HSC87333  Monardella odoratissima subsp. pallida L. P. Janeway 1987-7-4 2422 Butte Last Chance Creek, along rd. to Jones Meadow 6.5 mi. from Inskip 1524 Comment
  CAS-BOT-BC220233  Monardella sheltonii John Thomas Howell 1955-6-15 30481 Butte 6 miles from Paradise on road to Pentz 426 Comment
  RSA754450  Monardella sheltonii L. Ahart 2009-6-3 15822 Butte W side of Ten Mile House Road, about 100-200 yards NW of the table at the old homestead, Upper Bidwell Park, about 3/4 air miles SW of the intersection of Hwy 32 and Ten Mile House Road, about 10 miles NE of Chico. 232 Comment
  RSA712788  Monardella villosa subsp. sheltonii L. P. Janeway 1994-6-23 4672 Butte Pinkston Canyon Road about 400 feet east of Concow Road. 564 Comment
  CHSC34085  Montia chamissoi C. Glascock 1965-5-15 418 Butte Butte Meadows public campground 0.5 mi. W of Humboldt-Scout Rd. intersection. 26.1 mi ne of Chico city limits. Comment
  CAS-BOT-BC444796  Montia diffusa Javier Penalosa 1962-6-18 2453 Butte Near confluence of French and Peavine Crks. 609 Comment
  JEPS87430  Montia fontana Vernon H. Oswald and Lowell Ahart 1993-3-24 5244 Butte 2 mi n of Pentz Road (e side of Canyon n of the historical site of Pentz, on e side of secondary drainage entering Dry Creek); Dry Creek Canyon 262 Comment
  UC203629  Montia fontana A. A. Heller 1914-3-18 11209 Butte 8 mi n of Oroville Comment
  CHSC34213  Montia parvifolia M. S. Taylor 1981-4-28 3568 A Butte Along Four Trees Rd in wet mossy areas near creeks, ca. 1/2 mi e of Hwy 70, ca. 2 mi ne of Pulga. 701 Comment
  CHSC56573  Montia parvifolia L. P. Janeway 1987-6-5 2144 Butte Along French Creek just south of mouth of Peavine Creek. At damp place among shrubs along dirt road. 624 Comment
  POM101845  Montia parvifolia C. C. Bruce 1897-05 1777 Butte Forest- Ranch. Comment
  RSA500430  Muhlenbergia andina Vernon H. Oswald, L. Ahart 1989-8-15 3937 Butte Soda Ridge Road, 1.4 miles west of its junction with Coon Hollow Road, ca. 1.2 miles (air) north of Philbrook Reservoir. 1753 Comment
  CHSC44457  Muhlenbergia filiformis Lowell Ahart 1988-6-29 6098 Butte Along a wash north of Bean Creek Road, about 1/2 mile south-east of Little Bald Rock. 975 Comment
  JEPS116018  Muhlenbergia filiformis Lowell Ahart 2009-11-19 16546 Butte About 80 yards southeast of the gate, about 70 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 269 Comment
  POM196084  Muhlenbergia filiformis H. F. Copeland 1929-6-9 1213 Butte Jonesville. 1524 Comment
  CAS-BOT-BC274933  Muhlenbergia rigens A. A. Heller 1923-9-3 13827 Butte At the Phelan Ranch near Chico Comment
  CHSC36084  Myosotis discolor R. A. Schlising; R. Banchero 1981-5-20 4058 Butte E part of county, E of village of Feather Falls, along the Fall River. Comment
  CHSC96807  Myosotis discolor Lowell Ahart 2007-5-22 13900 Butte In a small meadow at the parking area, Big Bald Rock, about 14 miles (air) northeast of Oroville. 893 Comment
  CAS-BOT-BC83264  Myosurus minimus Lowell Ahart 1979-4-6 s.n. Butte 3 miles northwest of Bangor. Along North Honcut Creek. Comment
  CAS-BOT-BC456161  Najas guadalupensis Herbert L. Mason; Verne Grant 1946-8-15 13053 Butte #833 Irrigation Ditch, near caretaker's house, Greylodge Gam Refuge, Butte Sink Comment
  CHSC24489  Nama lobbii M. S. Taylor 1976-6-28 1165 Butte Ca. 4 mi se of Jonesville on Scotts John Creek Rd, ca. 2 ft n of rd. 1828 Comment
  CHSC43142  Narthecium californicum R. Banchero; R. Schlising 1981-7-21 607 Butte 0.3 mi s of Bald Mt lookout tower, Bald Mt. 1688 Comment
  CHSC25049  Nassella pulchra L. Morgan 1972-4-29 1 Butte Near Upper Bidwell Park Rd. on the corner of Archery Range exit road. 60 Comment
  CDA34496  Nasturtium officinale Stewart, Michael 2011-4-26 PDR# 1373326 Butte In the vicinity of Gridley, on Locust Street near Georgia and Idaho Street. Comment
  SEINET10940373  Nasturtium officinale Mary Susan Taylor 1975-10-31 Taylor 983 Butte Along creek, ca. 500 yds N of Pentz Rd, in Butte College Campus, ca. 12 mi S of Chico. 91 Comment
  CHSC38603  Navarretia divaricata subsp. vividior Vernon Oswald 1983-5-30 578 Butte Upper Bidwell Park, Chico, on the north rim overlooking Sycamore Creek Canyon ca. 1.8 mi e of the power lines. 390 Comment
  CHSC109730  Navarretia heterandra B. Castro 2006-5-25 1534 Butte Sacramento Valley/S. Cascade Range Foothill edge. Ca 7 air mi SE of Chico, ca 1.6 air mi NE of Hwy 99, in lower end of Hamlin Canyon. 94 Comment
  UC1719865  Navarretia heterandra David Fruchter 1979-9-18 177 Butte Oroville Airport Comment
  SEINET10496826  Navarretia intertexta Mary Susan Taylor 1978-5-7 Taylor 1611 Butte In and around Richvale vernal pool area, ca. 20 mi S of Chico, on W side of Hwy 99; Valley Grassland. 30 Comment
  SEINET10496827  Navarretia intertexta Mary Susan Taylor 1980-5-15 Taylor 2627 Butte T23N R2E ne sec 7. In and around vernal pools in Chaparral area on Cohasset Ridge, ca. 1/4 mi E of Cohasset Rd, ca. 9 mi NE of Chico. 396 Comment
  UCD48469  Navarretia intertexta W. R. Powell 1968-5-6 1481 Butte 1.8 miles north-northeast of Bangor, Butte County, California. 342 Comment
  CHSC25158  Navarretia leptalea D. Joley 1968-7-8 Butte 3/4 mi e of Lomo on Butte Meadows Road ca. 35 mi ne of Chico. Comment
  CHSC45434  Navarretia leucocephala Lowell Ahart 1978-5-12 1714 Butte In a field, Peter Ahart Ranch, about 2 1/4 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  SD120581  Navarretia leucocephala B. Ertter, Jeff Strachan 1980-5-5 3256 Butte Peter Ahart Ranch ca 1.5 mi northeast of Honcut between Oroville and Marysville, pasture north of house 29 Comment
  CDA40127  Navarretia leucocephala T. C. Fuller 1962-5-17 8717 Butte Highway 99E, 12.3 miles northwest of Chico. 0 Comment
  CHSC91113  Navarretia leucocephala subsp. leucocephala Lowell Ahart 2005-5-28 11818 Butte Pasture, on the south side of Nelson Avenue, east of the bridge across the Thermalito Forebay, Thermalito. 67 Comment
  CHSC45358  Navarretia nigelliformis subsp. nigelliformis Vernon Oswald 1988-4-18 3274 Butte Harter's Cherokee Ranch located on the w side of Hwy 99 between Hwy 149 and Dry Creek. 53 Comment
  UCD169102  Navarretia prostrata Ramona Robison 2013-4-15 23 Butte Clay Pit State Vehicular Recreation Area. In disturbed vernal pool located in main riding area. 41 Comment
  CHSC46223  Navarretia pubescens Pauleen Broyles 1987-6-19 1058 Butte Ca 13 km ne of Oroville. Ca 1.6 km s of Crystal Hill between middle and south forks of Feather River on Lake Oroville. Along a dirt road. 360 Comment
  CHSC75393  Navarretia tagetina Jennifer Slater 1997-4-27 33 Butte Upland area at the Wurlitzer addition of the Vina Plains Preserve, west of Highway 99, approx. 10 miles north of Chico. 67 Comment
  RSA715678  Navarretia tagetina L. Ahart 2005-5-28 11821 Butte 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
  UC1719847  Navarretia tagetina David Fruchter 1979-5-28 s. n. Butte Richvale (N of Corning) Comment
  SEINET10935977  Navarretia viscidula subsp. purpurea Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4133 Butte T20N R5E sw sec 10. Along Ponderosa Way (Big Ridge Rd), ca. 0.5 mi w of the East Fork Canyon Creek, ca. 14 mi ne of Oroville. Foothill Woodland; 500 m. 500 Comment
  CHSC46823  Nemacladus capillaris R. A. Schlising; R. Banchero 1981-6-16 4083 Butte Cohasset, 0.3 mi S of junction with Vilas Road, on Cohasset Road. 646 Comment
  SEINET10461216  Nemacladus interior Lowell Ahart 1984-6-8 Ahart 4669 Butte At the Ponderosa Dam, ca. 2 mi NW of Forbestown; Yellow Pine Forest; 370 m. 370 Comment
  CHSC77431  Nemophila heterophylla Laura Bogni 1997-3-25 8 Butte Magalia grove; west side of Coutelenc Rd., 1 mi. due W of Sawmill Peak; 1/2 mi. SE of Magalia Reservoir. 701 Comment
  CHSC10833  Nemophila maculata Lowell Ahart 1965-4-15 Butte Swede's Flat Road. 60 Comment
  CHSC10763  Nemophila pedunculata Lowell Ahart 1968-3-11 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC39077  Nemophila pedunculata R. A. Schlising 1981-4-11 4023 Butte E side of Chico, between Highway 32 and Humboldt Road. 76 Comment
  CHSC39093  Nemophila pedunculata R. A. Schlising; R. Banchero 1981-5-20 4065 Butte Lumpkin Ridge, ne of village of Feather Falls. 1280 Comment
  CHSC60986  Nemophila pedunculata Lowell Ahart 1993-6-20 7002 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile northwest of the Lost Creek Reservoir Dam. 1158 Comment
  UC107250  Nemophila pedunculata H. E. Brown Mar 3 1897-Mar 22 1897 173 Butte near Clear Creek; ; Clear Creek, Butte Co. 53 Comment
  SEINET10638522 Image available Nemophila pedunculata H. E. Brown 1897-3-3 Brown 173 Butte Clear Creek. Comment
  CHSC113399  Nemophila spatulata Lowell Ahart 2014-7-4 19555 Butte Road edge on the south side of Bull Hill Road, about 2 miles south of Butte Meadows. 1341 Comment
  CHSC90657  Nuttallanthus canadensis Samatha Mackey Hillaire; Charles Hooks 2005-4-9 1213 Butte North Table Mountain Plateau. Shore of AL Chaffin Reservoir, SE side. 298 Comment
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Jan 18 2011
  CHSC26845  Nymphaea odorata M. S. Taylor 1978-6-23 1635 Butte Irrifation ditch, ca. 5 mi s of jct of Chico-Butte Hwy and Ord Ferry Rd, ca. 20 mi s of Chico. 30 Comment
  CHSC35079  Oenothera elata subsp. hirsutissima R. A. Schlising 1981-11-3 4219 Butte Feather River Canyon along Hwy 70, ca 0.1 mi S of Arch Rock Tunnel. 463 Comment
  JEPS44059  Oenothera elata subsp. hirsutissima W. L. Jepson 1939-8-17 19458 Butte near Oroville; Feather River 45 Comment
  CHSC45305  Orobanche californica subsp. jepsonii V. Oswald; R. Schlising 1988-9-12 3700 Butte Rocky ridge ca. 3 mi (air) e of Jonesville. 2026 Comment
  CAS-BOT-BC457671  Orthilia secunda E. B. Copeland 1930-8-7 434 Butte Jonesville 1500 Comment
  SEINET10549678  Orthocarpus erianthus Mary Susan Taylor 1974-3-3 Taylor 66 Butte Burton's Mesa, ca. 13 mi E of Chico on the Skyway to Paradise. Associates: Nemophila heterophylla, Brodiaea pul chella, Arenaria californica. 335 Comment
  CAS-BOT-BC254368  Oryza sativa Lowell Ahart 1984-9-17 4793 Butte Peter Ahart Ranch, Honcut. About 2.25 miles N and 0.25 mile E of Honcut, about 12 miles S of Oroville 50 Comment
  CHSC44181  Osmorhiza occidentalis V. Oswald; L. Ahart 1988-7-13 3589 Butte Road to High Lakes e of Philbrook Reservoir. Along the n edge of Philbrook Creek s of the road. 1828 Comment
  JEPS121894  Oxalis corniculata Lowell Ahart 2014-11-24 19920 Butte About 10 feet below the high water line of Lake Oroville, about 500 yards east of the second parking area, old Bidwell Bar Road, about one mile south of Oroville Quincy Highway, about 8 miles (air) northeast of Oroville. Comment
  CHSC3585  Oxalis pes-caprae Susan Carrauthers 1966-3-1 21 Butte City of Chico. East 5th and Olive Streets. Found in lawn. Comment
  JEPS119639  Oxalis pes-caprae Lowell Ahart 2012-4-6 17808 Butte On the north side of Big Chico Creek, Lost Park in Bidwell Park, City of Chico. Comment
  CAS-BOT-BC317161  Packera subnuda var. subnuda E. B. Copeland 1930-6-27 s.n. Butte Jonesville 1550 Comment
  JEPS120150  Panicum capillare Lowell Ahart 2012-10-20 18515 Butte On the north side of Big Chico Creek, south of Table 34, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CHSC39398  Panicum dichotomiflorum L. Ahart 1983-9-17 4429 Butte Ca. 1/8 mi ne of Kunkle Reservoir, south of Paradise. 600 Comment
  CHSC97686  Panicum dichotomiflorum Lowell Ahart 2007-11-3 14562 Butte Along a very small stream, below the high water line of Lake Oroville, about 3/4 mile east of the Power House below Kunckle Reservoir, about 1 1/4 miles north of the Lime Saddle Campground, about 5 miles (air) southeast of Paradise. 259 Comment
  CAS-BOT-BC259622  Paspalum dilatatum Lowell Ahart 1982-10-15 3895 Butte Along the edges of N Honcut Creek, ca. 1 mile N and 2.75 miles E of Honcut 50 Comment
  CHSC102713  Paspalum dilatatum Lowell Ahart 2009-7-3 15993 Butte 10 yards north of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove parking area, Lower Bidwell park, Chico. 67 Comment
  SEINET10927046  Paspalum dilatatum Mary Susan Taylor 1979-9-28 Taylor 2199 Butte Butte County line at Hwy 40, between boundry and Arch Rock tunnel; granitic soils and dome outcrop. 488 Comment
  CHSC94974  Paspalum distichum Lowell Ahart 2006-10-13 13506 Butte Peter Ahart Ranch, about 1 1/2 mile north and 1 1/8 miles east of Honcut, about 12 miles southeast of Oroville. 33 Comment
  JEPS127627  Paspalum distichum B. Castro 2008-9-11 1774 Butte 10 air miles W of Gridley, 0.4 mi S of Gridley Rd., off SE bank of Cherokee Canal 0,2 mi NE of Sward bend in canal. Ca 40 feet out from levee toe. Comment
  UCD88969  Paspalum urvillei Alan A. Beetle 1941-6-27 2894 Butte 4 miles north of Gilroy. Comment
  CHSC2489  Pedicularis densiflora W. Fitzwater 1958-3-19 Butte Forest Ranch area ca. 15 mi. NE of Chico. Comment
  CHSC5977  Pelargonium graveolens M. MacArthur 1968-6-17 217 Butte Ca. 20 ft. SE Big Chico Creek along path between greenhouse and headhouse, Chico State College campus. 60 Comment
  CHSC44615  Pellaea brachyptera Vernon Oswald 1984-7-2 1344 Butte 2.5 mi s-e of the junction of 26N27 and Humboldt Rd. n-e of Jonesville. 1767 Comment
  CHSC40286  Pellaea mucronata Lowell Ahart 1985-6-17 5055 Butte 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 975 Comment
  SEINET3166410  Pellaea mucronata P. J. Alexander 2009-5-27 1048 Butte Western foothills of the northern Sierra Nevada, Feather Falls trail +-0.4 trail miles short of the overlook, 2.2 miles ESE of Bald Rock Dome, 17.8 miles NE of Orovoville, Plumas National Forest. 616 Comment
  SEINET10470235  Pellaea mucronata Lowell Ahart, James D. Jokerst 1985-3-24 Ahart 4855 Butte Serpentine Point, west of Yankee Hill. Comment
  CHSC35217  Penstemon azureus var. azureus M. S. Taylor 1981-5-21 3774 Butte S side of Concow Rd, ca. 1/2 mi s of its jct with Ponderosa Way, in upper Concow Basin, ca. 20 mi n of Oroville. 853 Comment
  RSA780086  Penstemon breviflorus subsp. breviflorus C. C. Bruce 1897-06 2010 Butte Big Chico Comment
  CHSC1866  Penstemon heterophyllus var. purdyi L. Oliver; D. Sloan 1935-5-10 Butte Butte Creek Canyon. Comment
  CHSC104792  Penstemon laetus var. leptosepalus L. P. Janeway 2010-6-19 10025 Butte Northern High Sierra Nevada. About 1.2 km south of Bald Rock Dome near a saddle along the ridge between Middle Fork Feather River and Bean Creek drainage; along Bean Creek Road at spur road to Dome Trail trailhead. 858 Comment
  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
  CHSC49029  Penstemon laetus var. leptosepalus Vernon Oswald 1984-5-23 1202 Butte Beside the dirt road leading to the falls on Bear Ranch Creek s-e of Calif. Hwy 70 at the Cresta Rest Area. 487 Comment
  RSA109280  Penstemon laetus var. leptosepalus E. B. Copeland 1929-7-14 455 Butte Jonesville. 1550 Comment
  UC454141  Penstemon laetus var. leptosepalus Miss Kate Conger 1907-1 Butte Brush Creek Comment
  NY627343  Penstemon newberryi var. newberryi A. A. Heller 1915-6-10 11958 Butte Little Summit in the Sierra Nevada 1371.6 Comment
  CHSC36300  Penstemon personatus M. S. Taylor 1982-8-16 4998 A Butte Along rd from Bald Mt to High Rock Ravine, ca. 4 air mi ne of Stirling City. 1706 Comment
  CHSC43130  Penstemon personatus R. Banchero; R. Schlising 1981-7-19 609 Butte 1 mi e of Bald Mt lookout tower on Bald Mt. 1780 Comment
  CHSC69056  Penstemon personatus Lowell Ahart 1997-8-1 7803 Butte On the north side of the County Road, southwest of Keyser Creek, about 1 1/2 miles southeast of Bald Mountain, about 6 miles (air) northeast of Stirling City. 1432 Comment
  RSA443117  Penstemon personatus L. Ahart, P. Ahart 1984-7-19 4761 Butte About 0.5 mile east of Bald Mountain, about 5 miles NE of Stirling City. 1900 Comment
  UCD124114  Penstemon procerus E. B. Copeland 1931-6-20 689 Butte Jonesville. 1500 Comment
  CHSC23143  Pentagramma pallida M. S. Taylor 1975-10-31 984 Butte Ca. 10 ft n of Big Chico Creek, in vicinity of Diversion Dam, Upper Bidwell Park, Chico. 152 Comment
  UC1506779  Pentagramma pallida Lowell Ahart 1984-2-3 4494 Butte ca. 3.5 mi ne of Honcut (ca. 1/4 mi s of Cox Lane, e of pole line tower) 100 Comment
  CHSC29014  Pentagramma triangularis M. S. Taylor; J. D. Jokerst 1980-4-4 2447 Butte Jct of Rocky Honcut Creek and Swedes Flat Rd, ca. 2 mi e of Oroville-Bangor Hwy, ca. 10 mi se of Oroville. 365 Comment
  CHSC11325  Pentagramma triangularis subsp. semipallida Lowell Ahart 1967-4-12 Butte Bidwell Bar. 121 Comment
  CHSC90138  Pentagramma triangularis subsp. triangularis Jack Judkins 1983-4-16 9 Butte 6 mi east-southeast of Chico, 100 yds south of Butte Creek, 200 yds southeast of the Covered Bridge. 274 Comment
  SEINET13095371  Perideridia bolanderi subsp. involucrata Unknown 1967-6-21 3778 Butte Road to Magalia 1.8 miles N of Pentz Store. 137 Comment
  CHSC94385  Perideridia kelloggii Lowell Ahart 2006-8-5 13087 Butte On the west side of a large wash, Peter Ahart Ranch, about 1 1/2 miles north and 100 yards east of Honcut, about 12 miles south of Oroville. 30 Comment
  CHSC37275  Perideridia lemmonii L. Ahart 1982-8-19 3744 Butte Along sides of North Honcut Creek, in a protected shady place, Peter Ahart Ranch, ca. 1 mile n and 3 mi e of Honcut. 50 Comment
  CHSC96925  Perideridia lemmonii Lowell Ahart 2007-7-8 14267 Butte On the west side of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 53 Comment
  CHSC26610  Persicaria amphibia M. P. Hayes 1977-9-24 118 Butte In drainage of Little Butte Creek where Little Butte Creek intersects road Z (Chico-Butte City Highway). In ditch along edge of road. 30 Comment
  CHSC48661  Persicaria amphibia Vernon Oswald 1987-7-4 3091 Butte Rancho Aquas Frias. 7-Mile Lane, 2.8 mi s of Dayton-Ord Hwy, between Chico and Butte City. Growing in a dry roadside ditch. 33 Comment
  CHSC109766  Persicaria hydropiper Lowell Ahart 2012-10-28 18522 Butte About 50 yards east of Table 5, west of Cedar Grove, Lower Bidwell Park, Chico. 68 Comment
  CAS-BOT-BC413701  Persicaria hydropiper John Thomas Howell 1959-9-20 34644 Butte Eastern outskirts of Oroville 60 Comment
  JEPS124338  Persicaria lapathifolia Lowell Ahart 2015-10-16 20555 Butte About half way of and east of One Mile Pond, about 6 miles (air) east of Biggs. Comment
  CHSC37111  Persicaria maculosa L. Ahart 1982-10-15 3891 Butte On bottom of North Honcut Creek, ca. 2.7 mi ne of Honcut. 50 Comment
  JEPS119936  Persicaria maculosa Lowell Ahart 2012-9-28 18465 Butte Gravel bar in the middle of Big Chico Creek, about 30 yards east of the Freeway, Lower Bidwell Park, Chico. Comment
  CAS-BOT-BC419318  Persicaria punctata Lowell Ahart 1987-5-27 5716 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  SEINET10537476  Petrorhagia velutina Mary Susan Taylor 1981-4-5 Taylor 3487 Butte T21N R4E se sec 2; Berry Creek quad. E side of Dark Canyon Rd, 2.2 mi s of its jct with Big Bend Rds, ca. 3 air mi s of Jarbo Gap on Hwy 70, n of Oroville. Steep rock wall; 1400 ft. 427 Comment
  CHSC30888  Phacelia egena J. D. Jokerst 1979-4-6 1183 Butte Top of North Table Mt, W edge of Mt. 365 Comment
  CHSC45936  Phacelia heterophylla subsp. virgata Lowell Ahart 1984-7-19 4722 Butte Along a logging road near the dirt road, about 1 1/2 miles southeast of Bald Mountain, 3/4 mile west of Oak Point, about 4 miles north-east of Stirling City. 1371 Comment
  UC1051795  Phacelia mutabilis L. R. Heckard 1951-8-7 182 Butte between Chaparral and Butte Meadows Comment
  UC1564794  Phacelia procera V. Oswald and L. Ahart 1989-7-12 3851 Butte ca 2 air mi sw Lotts Lake (ca 3 air mi se of Philbrook Reservoir); Big Kimshew Creek 1926 Comment
  UC1187650  Phacelia purpusii Lincoln Constance, Elwood Molseed, John Weiler 1960-6-12 3677 Butte three mi above junction of Highway 32 and Butte Meadows road (33 min ne of Chico) 1219 Comment
  RSA152187  Phacelia purpusii Lincoln Constance, E. Moleseed, John Weiler 1960-6-12 3677 Butte 3 miles above junction of Highway 32 and Butte Meadows Road, 33 miles northeast of Chico. 1220 Comment
  CHSC58919  Phacelia racemosa Lowell Ahart 1992-7-29 6891 Butte About 1 mile north-east of the Carr Mine, about 3/4 mile north-west of Lotts Lake. 1798 Comment
  CAS-BOT-BC154304  Phacelia ramosissima var. ramosissima A. A. Heller 1914-7-2 11517 Butte [Canon] Canyon of Big Chico creek Comment
  CHSC56832  Phalaris aquatica J. Lund 1980-4-28 Butte Corner of Pentz Road and Pentz-Magalia Hwy, ca 15 mi south of Chico and 5 mi east of Hwy 99. 91 Comment
  CHSC31634  Phalaris minor L. Ahart 1974-6-6 477 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC46440  Phalaris paradoxa Lowell Ahart 1989-5-23 6255 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
  CAS-BOT-BC77373  Philadelphus lewisii A. A. Heller 1915-5-17 11875 Butte Canyon of Chico Creek 5 miles east of Chico; about 50 miles to the south, probably along the Bear River Comment
  SEINET10970382  Philadelphus lewisii subsp. californicus Mary Susan Taylor 1975-9-19 Taylor 912 Butte Ca. 0.5 mi N of Magalia, ca. 50 ft E of Skyway; serpentine area surrounded by Yellow Pine Forest. 610 Comment
  UCD118397  Phlox diffusa E. B. Copeland 1931-6-19 683 Butte Jonesville. 2100 Comment
  UC478477  Phlox gracilis E. B. Copeland 1931-6-29 680 Butte Butte Creek Jonesville 1500 Comment
  CHSC35095  Phlox speciosa subsp. occidentalis R. A. Schlising 1980-6-23 3760 Butte Southeast part of county, 3.4 miles N and W of Forbestown. 890 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
  RSA133220  Phoradendron bolleanum subsp. densum Del Wiens 1960-6-15 2727 Butte Near Magalia, just north of train depot. Comment
  SEINET10492816  Phoradendron bolleanum var. densum Mary Susan Taylor 1975-9-19 Taylor 918 Butte Ca. 0.5 mi N of Magalia, ca. 50 ft E of Skyway; serpentine area surrounded by Yellow Pine Forest. 610 Comment
  SEINET12230295  Phoradendron juniperinum M. S. Taylor 1976-1 997 Butte abundant in Yellow Pine Forest, 2 mi N of Cohasset, 10 ft E of Cohasset Hwy 762 Comment
  LA209889  Phoradendron leucarpum subsp. tomentosum A. A. Heller; 1914-1-28 11157 Butte near Hog Springs, 6 mi E of Chico Comment
  CHSC31435  Phoradendron libocedri L. Ahart 1980-9-10 2622 Butte Along Bean Creek Rd, ca. 1 mi se of Little Bald Rock, ne of Oroville. 1100 Comment
  SEINET12276347  Phyla nodiflora Unknown 1905-1 s.n. Butte near Chico Comment
  JEPS127067  Physalis lancifolia Lowell Ahart 2016-5-30 20891 Butte Peter Ahart Ranch, about 2 1/2 miles north and 1/2 mile east of Honcut, about 12 miles (air) south of Oroville. Comment
  CDA5819  Physalis lancifolia M. R. Pryor 1949-10-13 Butte 1 mile west of Biggs on Afton Road. 0 Comment
  SBBG121212  Physalis lancifolia L. Ahart 2007-8-19 14494 Butte N strand of a reservoir, ca. 2.25 mi (air) SE of Honcut ca. 13 mi (air) SE of Oroville 49 Comment
  CHSC11342  Physalis philadelphica Lowell Ahart 1972-11-4 Butte Peter Ahart Ranch, Honcut. 45 Comment
  RSA325148  Physocarpus capitatus M. S. Taylor, L. Hanson 1981-5-17 3805 Butte Along creek, Phillips property, 685 Wagstaff, Paradise. 579 Comment
  CHSC28691  Pilularia americana M. S. Taylor 1979-5-6 2002 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC61203  Pilularia americana Lowell Ahart 1993-4-8 6930 Butte On the north side of Biggs Princeton Road, about 2 miles west of Biggs. 30 Comment
  NY49911  Pinus contorta var. murrayana E. B. Copeland 1929-7-15 334 Butte Jonesville 1550 Comment
  CHSC27921  Pinus jeffreyi M. S. Taylor 1978-7-18 1706 Butte On top of Humboldt Peak, at Humboldt Summit. 2158 Comment
  CHSC3903  Pinus lambertiana R. Carter 1967-7-31 499 Butte Found ca. 17 mi NE of Oroville on W side Big Bald Rock along E side Big Bald Rock Rd. where road turns off to campground. 1066 Comment
  CHSC4721  Pinus lambertiana R. Carter 1966-6-15 438 Butte 3/4 mi. S Brush Creek on Bald Rock Rd., growing 25' off W side of road. 1219 Comment
  SEINET10530763  Pinus lambertiana Mary Susan Taylor 1976-2-22 Taylor 999 Butte Yellow Pine Forest, ca. 2 mi N of Cohas st, ca. 10 ft E of Cohasset Hwy. 610 Comment
  UC2026874  Pistacia atlantica Lowell Ahart, Susan Bazell, Josephine Guardino, Wes Dempsey 2012-6-21 18202 -A Butte About 50 yards south of the dam at Sycamore Pool, Lower Bidwell Park, Chico. Comment
  SEINET10470241  Pityrogramma pallida Lowell Ahart 1984-2-3 Ahart 4494 Butte Ca. 1/4 mile south of Cox Lane, east of the pole line tower; ca. 3.5 miles NE of Honcut. Foothill Woodland; 100 m. 100 Comment
  JEPS124178  Plagiobothrys Lowell Ahart 2015-3-10 19944 Butte North of Larkin Road, about 6 miles (air) southwest of Oroville. Comment
  SEINET10898354  Plagiobothrys Mary Susan Taylor 1981-5-7 Taylor 3640 Butte T20N R6E se/se sec 25, Clipper Mills quad. Along spur rd, ca. 0.5 mi SE of its jct with Fields Ridge Rd-20N24.6, ca. 3 air mi S of Feather Falls community. Yellow Pine Forest; 3200 ft. 975 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
  CHSC115319  Plagiobothrys fulvus var. campestris Lowell Ahart 2015-4-18 20050 Butte On the east side of Robinson Mill Road, about 1 1/2 miles southwest of the intersection of Robinson Mills Road and Forbestown Road, about 12 miles (air) southeast of Oroville. 685 Comment
  JEPS117203  Plagiobothrys glyptocarpus var. glyptocarpus Lowell Ahart 2010-5-22 16715 Butte About 140 yards east of the fence, about 240 yards east of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville 392 Comment
  CHSC116716  Plagiobothrys glyptocarpus var. modestus Lowell Ahart 2016-5-24 20857 Butte West side of a large drainage, about 50 yards north of the ditch, about 150 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. 44 Comment
  CHSC46780  Plagiobothrys greenei Lowell Ahart 1980-5-10 2223 Butte On the bottom of a small wash in a farmed field, Peter Ahart Ranch, about 2 1/2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  SEINET10497376  Plagiobothrys greenei Mary Susan Taylor 1978-4-14 Taylor 1567 Butte On E side of Williams Road in Valley Grassland, ca. 1/4 mi N of Pentz Road, on Butte College Campus, ca. 15 mi S of Chico. With Marc Hayes. 30 Comment
  CHSC37424  Plagiobothrys hispidulus Jeff Prouty; Nancy Prouty, R. A. Schlising 1982-5-26 4277 Butte Chico Meadows, 1 mi w of jct Scout Road and Humboldt Road at Butte Meadows. 1280 Comment
  UC478472  Plagiobothrys hispidulus E. B. Copeland 1930-6-28 685 Butte near head South Willow Creek (Jonesville); head South Willow Creek, Jonesville 1700 Comment
  UC480660  Plagiobothrys hispidulus H. F. Copeland 1930-7-28 Butte hogwallow near head Willow Creek; Jonesville, head Willow Creek Comment
  SEINET12326942  Plagiobothrys nothofulvus J. D. Nishball 1982-1 6 Butte ca 10 mi SE of Chico, 1.5 mi E of covered bridge, S side of Castle Rock ridge, Butte Creek Canyon 201 Comment
  CHSC35055  Plagiobothrys scriptus R. A. Schlising 1981-3-30 4011 Butte E of Chico, on old Bruce Road, 0.5 mi N of Skyway; roadside. 79 Comment
  UC763056  Plagiobothrys shastensis R. F. Hoover 1938-4-24 3244 Butte 3 mi n Chico Comment
  UC718179  Plagiobothrys stipitatus Carl B. Wolf 1937-5-14 Butte 5 mi nw Chico (Hamilton City Road); Sacramento Valley 45 Comment
  UC1601376  Plagiobothrys stipitatus Mrs. R. W. Summers Butte Comment
  JEPS123887  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2015-5-5 20137 Butte About 400 yards south of Larkin Road Boat Lunch Area, near the Thermalito Afterbay, about 1 miles southwest of the Oroville Airport, about 6 miles (air) southwest of Oroville Comment
  JEPS98580  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2000-5-13 8352 Butte 5 air miles SW of Oroville (S side of the access road to the boat ramp at the Thermalito Afterbay, W of Larkin Road, 1 1/4 mi S of the Oroville Airport) 42 Comment
  RSA325025  Plantago bigelovii subsp. bigelovii L. Ahart 1984-4-24 4584 Butte Peter Ahart Ranch, ca. 2.5 mi NE of Honcut, ca. 12 mi S of Oroville. 50 Comment
  CHSC90966  Plantago coronopus L. P. Janeway 2005-5-9 8385 Butte Northern Sierra Nevada Foothills. Northwest side of Hwy 70 0.6 km southwest of Pentz Road. 207 Comment
  UCD124395  Plantago coronopus Steven C. Joslin 1978-4-18 2 Butte ca. 11 miles north of Chico on Highway 99 at intersection with Broyles Road. 60 Comment
  CHSC62364  Plantago elongata B. Castro 1990-3-31 418 Butte Ca 4 mi SW of Paradise, S of Neal Rd ca 0.1 mi SE of Elliot Spring House. 297 Comment
  HSC92462  Plantago elongata L. Ahart 1984-4-24 4854 Butte Peter Ahart Ranch, 2 mi. N and .5 mi. E of Honcut, 12 mi. S of Oroville 37 Comment
  CHSC1220  Plantago erecta F. Roos 1930-3-28 Butte Paradise. 548 Comment
  JEPS108965  Plantago lanceolata Lowell Ahart 2006-9-13 13321 Butte South edge of the North Fork of the Feather River, about 50 yards west of the Cresta Power House, north side of Highway 70, about 2 3/4 miles northeast of Pulga, about 23 miles (air) northeast of Oroville 437 Comment
  SEINET10499811  Plantago lanceolata Mary Susan Taylor 1982-8-16 Taylor 4995 Butte T24N R4E sw/se sec 28. Paradise NE quad. S end of Stirling City, along both sides of the Skyway. Mixed Evergreen Forest; 3400 ft. 1036 Comment
  UCSC008327  Plantago pusilla Lowell Ahart 2012-5-4 17838 Butte 302 Comment
  RSA81735  Plantago truncata subsp. firma Roxana S. Ferris 1952-5-16 12481 Butte 3 miles south of Cherokee on road to Oroville 335 Comment
  CHSC61360  Platanthera sparsiflora Lowell Ahart 1993-7-29 7128 Butte About 1/8 mile south-west of the Snow Mine, about 2 1/2 miles east of Bald Mountain, about 6 1/2 miles north-east of Stirling City. 1463 Comment
  SEINET10476447  Platanus occidentalis Mary Susan Taylor, Vernon H. Oswald 1984-4-4 Taylor 5376 Butte T22N R2E nw sec 25. Along Humbug Rd, ca. 0.5 mi E of Honey Run Covered Bridge, ca. 6 air mi E of Chico. Foothill Woodland/Riparian Woodland; 600 ft elev. 183 Comment
  UC118461  Platystemon californicus Mrs. R. M. Austin Apr 1896 170 Butte plains e Chico; plains e of Chico Comment
  CHSC33726  Plectritis ciliosa M. S. Taylor 1981-4-5 3491 Butte At end of Dark Canyon Rd near turnout at restroom, up from boatramp to W Br Feather River, ca. 3.5 mi s of Big Bend Rds jct, ca. 5 air mi s of Jarbo Gap on Hwy 70. 304 Comment
  CHSC29232  Plectritis congesta M. S. Taylor 1980-4-1 2428 Butte On bluffs above Covered Bridge, ca. 100 ft s of Butte Creek, ca. 6 mi e of Chico 182 Comment
  SEINET10905832  Plectritis congesta subsp. brachystemon Mary Susan Taylor, K. Tharp 1983-3-12 Taylor 5236 Butte T22N R2E nw sec 27. Chico quad. Along small rd off Stillson Canyon Rd (leading to Mannion property), ca. 3 mi sse of Chico. Elevation ca. 500 ft. 152 Comment
  UC426929  Pleuricospora fimbriolata E. B. Copeland 1929-7-13 436 Butte Jonesville 1550 Comment
  HSC66331  Pleuricospora fimbriolata M. S. Taylor 1980-8-2 3210 Butte Humboldt Summit, 100ft. W of Old Humboldt Rd. 2012 Comment
  CHSC2181  Poa annua M. Roberson 1956-4-9 Butte SW of Paradise, along Skyway. 426 Comment
  CHSC59054  Poa annua Lowell Ahart 1992-7-21 6823 Butte Along Coon Hollow Creek, east of the logging road, about 2 1/2 miles (air) north-east of Philbrook Reservoir. 1706 Comment
  CHSC76431  Poa annua Lowell Ahart 1999-10-28 8311 Butte On the west side of a pond, 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
  RSA718083  Poa bolanderi L. Ahart 2006-7-16 12972 Butte About 20 yards east of the poor dirt road, About 100 yards south of the cabin, About 0.75 mile (air) northwest of Jonesville, About 5 miles (air) northeast of Butte Meadows. 1570 Comment
  CHSC101297  Poa bulbosa Lowell Ahart 2009-4-22 15598 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
  CHSC41433  Poa bulbosa Lowell Ahart 1986-4-4 5242 Butte Near North Honcut Creek, about 2 1/2 miles north and 3 miles east of Honcut, about 12 miles south of Oroville. 67 Comment
  SEINET10901783  Poa gracillima Mary Susan Taylor 1980-6-14 Taylor 2877 Butte T21N R6E nw sec 29. Big Bend quad. Little Bald Rock, on granite dome, ca. 4 mi E of Lake Madrone. 1016 Comment
  UC1609249  Poa palustris Lowell Ahart 1993-6-26 7014 Butte ca 1/4 mi w Lost Creek Reservoir (n of dirt road) 1036 Comment
  CAS-BOT-BC255972  Poa pratensis H. F. Copeland 1929-6-10 1205 Butte Jonesville Comment
  CHSC41282  Poa pratensis S. C. Morey 1983-7-21 501 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  CHSC38846  Poa pratensis subsp. pratensis Vernon Oswald 1983-5-9 463 Butte Upper Bidwell Park, Chico, along the Yahi Trail where it follows the margin of Chico Creek e of Brown's Hole. 207 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
  CAS-BOT-BC255235  Poa pringlei E. B. Copeland 1931-6-22 606 Butte Jonesville 2000 Comment
  CHSC49567  Poa pringlei Vernon Oswald 1983-8-17 995 Butte Trail between Humboldt Summit and Humboldt Peak, n-e of Jonesville. 2023 Comment
  UCD90391  Poa secunda E. B. Copeland 1943-7-13 s.n. Butte Butte Meadows. Comment
  CHSC25105  Poa secunda subsp. secunda R. W. Wallstrum 1970-3-26 8 Butte Lower side of dam at Magalia Reservoir, 8 mi from Paradise, on s side of road. 609 Comment
  CHSC8601  Poa secunda subsp. secunda M. Banning 1969-4-18 78 Butte Table Mt., 1/2 mi. from Ore. City junction, then approx. 1/4 mi. NW. 487 Comment
  UCD91621  Poa secunda subsp. secunda A. A. Heller 1917-4-15 12678 Butte 10 miles N of Chico. 64 Comment
  JEPS117708  Poa tenerrima Lowell Ahart 2010-5-14 16662 Butte Disc Golf Area, about 200 yards west of the entrance to the Disc Golf Area, west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 350 Comment
  UCD92073  Poa tenerrima William Anderson 1965-4-24 s.n. Butte Table Mountain. Comment
  SEINET12318324  Pogogyne douglasii Unknown 1974-1 s.n. Butte Found ca 12 mi N of Chico at jct of Broyles Road and Hwy 99 61 Comment
  CHSC44302  Pogogyne zizyphoroides Lowell Ahart 1988-5-12 5992 Butte About 1/2 mile north-east of the Honcut Cemetary, Josie Osgood Ranch, about 3 1/2 miles east and 1 1/2 miles north of Honcut. 60 Comment
  UC1303183  Pogogyne zizyphoroides A. A. Heller 1926-3-29 13915 Butte 9 miles north of Chico Comment
  UC762083  Pogogyne zizyphoroides R. F. Hoover 1936-5-20 1150 Butte 10 mi SW of Oroville Comment
  CHSC25341  Polanisia dodecandra subsp. trachysperma M Hayes 1977-7-3 21 Butte Dry, gravelly wash 2.0 km east of Highway 99 along Pentz Road. 80 Comment
  CHSC61718  Polanisia dodecandra subsp. trachysperma Vernon H. Oswald; Lowell Ahart 1993-8-25 5853 Butte Hwy. 32 between Forest Ranch and Lomo, at the 34.0 mi paddle marker. 1060 Comment
  CHSC27054  Polycarpon tetraphyllum Lowell Ahart 1978-6-2 1751 Butte Peter Ahart Ranch, Honcut. Along the edge of North Honcut Creek. 50 Comment
  CHSC45569  Polycarpon tetraphyllum John T. Howell 1974-5-3 50334 Butte Sidewalk east of Wells Fargo Bank, at the Shell Gas Station, in Gridley. 30 Comment
  CAS-BOT-BC167556  Polygala cornuta var. cornuta Chester Dudley 1940-6-1 s.n. Butte Near Magalia Comment
  CHSC100501  Polygonum aviculare Lowell Ahart; John Dittes, Josephine Guardino 2008-11-8 15409 Butte On the north side of the gravel road, about 50 yards east of Cedar Grove Parking Area in Lower Bidwell Park, Chico. 67 Comment
  CAS-BOT-BC109137  Polygonum bidwelliae C. R. Quick 1951-6-5 51 -87 Butte 5 miles northeast of Chico, Deer Creek road. Comment
  SBBG61484  Polygonum bidwelliae A. A. Heller 1927-5-18 14391 Butte Neale grade on rd from Chico to Paradise Comment
  CAS-BOT-BC109149  Polygonum bolanderi Dean W. Taylor 1988-8-12 10048 Butte Road to Butte Meadows, 3.2 miles northeast from Highway 32. 1341 Comment
  CHSC39043  Polygonum bolanderi R. A. Schlising 1980-7-25 3916 Butte N part of county, along Humboldt Road, 1.9 mi NE jct with highway 32 at Lomo. 1356 Comment
  CAS-BOT-BC414363  Polygonum californicum John Thomas Howell 1962-6-16 37589 Butte 3.5 mi. n. of Pentz 396 Comment
  JEPS87148  Polygonum douglasii subsp. douglasii Lowell Ahart 1992-7-29 6873 Butte about 1 mi ne Carr Mine (3/4 mi nw of Lotts Lake) 1798 Comment
  SEINET10479466  Polygonum hydropiper Lowell Ahart 1983-9-17 Ahart 4437 Butte T24N R4E section 34. Ca. 1/4 mi se of Stirling City. Yellow Pine Forest; 1100 m. 1100 Comment
  CHSC29793  Polygonum parryi M. S. Taylor; J. D. Jokerst, R. Schlising 1980-6-14 2875 Butte Little Bald Rock, at base, ca. 4 mi e of Lake Madrone. 1016 Comment
  CHSC30947  Polygonum parryi L. Ahart 1980-7-4 2457 Butte In the tracks of a dirt rd near the Oak Grove Cemetary, ca. 1/2 mi se of Hurleton. 600 Comment
  CDA14467  Polygonum persicaria G. D. Barbe 1988-8-24 4308 Butte Butte Basin; Lundberg Brothers' near Richvale. 0 Comment
  SEINET10479669  Polygonum persicaria Mary Susan Taylor 1975-10-3 Taylor 924 Butte At bridge over Little Chico Creek on River Road, ca. 10 mi W of Chico; Ripar ian Woodland disturbed area. 37 Comment
  CDA13840  Polygonum punctatum G. F. Hrusa, T. D. Wilfred 1996-9-5 13568 Butte Butte Basin; Immed. W of Butte Creek at Western Canal District Dam. Comment
  CHSC103173  Polygonum punctatum Lowell Ahart 2009-11-19 16559 Butte About 30 yards west of table, about 100 yards south of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) west of Highway 32, about 10 miles northeast of Chico. 242 Comment
  CAS-BOT-BC109252  Polygonum shastense V. Oswald; L. Ahart 1988-7-29 3656 Butte Ca. 5 mi (air) southeast of Jonesville on the ridge running eastwards from the peak of Snow Mountain. 2097 Comment
  SEINET10530405  Polypodium californicum Mary Susan Taylor 1979-12-25 Taylor 2309 Butte T22N R2E sec 17. Abundant at base of rocky outcroppings, Fern Banks, opposite Chico Municipal Golf Course, Upper Bidwell Park, Chico. 91 Comment
  CHSC32692  Polypodium calirhiza M. S. Taylor 1981-3-24 3433 Butte S side of Hwy 70 opposite Cresta Powerhouse, ca. 2.4 mi e of Pulga. 487 Comment
  CHSC39819  Polypodium calirhiza Ruby Gist 1935-4-26 Butte Fern Banks. Comment
  RSA715711  Polypodium calirhiza L. Ahart 2005-1-20 11472 Butte West side of McCabe Creek, above the high water mark of Lake Oroville, about 1/4 mile soutj of the siphon. about 3 mi northeast of Hurleton, about 7 mi east of Oroville Dam. 305 Comment
  UCD90975  Polypogon australis A. A. Heller 1914-5-19 11419 Butte 8 miles north of Oroville Comment
  UCD90979  Polypogon australis A. A. Heller 1914-5-19 11419 Butte 8 miles north of Oroville Comment
  CAS-BOT-BC233057  Polypogon interruptus Lowell Ahart 1977-6-2 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CDA2331  Polypogon interruptus A. A. Beetle 1941-6-27 2745 Butte Near Lomo, 13 miles west of Chester, near road to Chico Creek. 0 Comment
  CHSC90814  Polypogon interruptus Lowell Ahart 2005-5-2 11779 Butte Overflow area on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 25 Comment
  RSA726855  Polypogon viridis L. Ahart 2007-6-3 13977 Butte On the west side of Jordan Hill Road, about 1.5 miles northwest of Concow Creek, about 1.5 miles west of Concow Reservoir. 358 Comment
  CHSC92384  Polystichum imbricans subsp. imbricans Lowell Ahart 2005-11-12 12488 Butte On the west side of Dark Canyon Creek, about 150 yards south of the train tunnels, west of Dark Canyon Road, about 2 1/2 miles (air) south of Highway 70 at Big Bend Road. 293 Comment
  CHSC4145  Polystichum munitum R. Carter 1966-6-26 463 Butte Found ca. 15 mi. NE of Oroville at old Berry Creek RR station on N Fork Feather R., 500 yds. Up E side Berry Cr. 457 Comment
  UC1562274  Portulaca oleracea Lowell Ahart 1990-7-4 6549 Butte about 1/2 mi sw of the Enterprise Bridge across Lake Oroville (below the high water line Lake Oroville, along McCabe Creek); McCabe Creek 243 Comment
  UC478558  Potamogeton berchtoldii E. B. Copeland 1931-7-20 604 Butte Jonesville 1650 Comment
  JEPS106244  Potamogeton diversifolius Lowell Ahart 2004-7-11 11226 Butte On the southeast shore of Paradise Lake, about 3/4 mile northeast of the picnic area, about 1 mile northeast of Paradise Dam, about 4 miles (air) southwest of Stirling City 814 Comment
  JEPS120837  Potamogeton foliosus subsp. foliosus Lowell Ahart 2013-7-6 18823 Butte Peter Ahart Ranch, about 1.75 miles north and 1.5 miles east of Honcut, about 12 air miles southeast of Oroville. Comment
  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
  CHSC61700  Potentilla glandulosa Cathy Young 1988-4-23 11 Butte 1/4 mi e of Durham, 50 yds n of Durham Highway, and 15 yds w of Butte Creek. 67 Comment
  CHSC105822  Potentilla gracilis var. fastigiata Lowell Ahart 2010-9-28 17253 Butte About 20 yards west of Big Kimshew Creek, about 100 yards east of the poor dirt road, about 1-1/2 miles (air) northeast of Jones Meadow, about 2-1/2 miles (air) southeast of Philbrook Reservoir. 1886 Comment
  CAS-BOT-BC539449  Potentilla gracilis var. fastigiata E. B. Copeland 1929-7-24 372 Butte Jonesville 1550 Comment
  CAS-BOT-BC158499  Potentilla millefolia Vesta Holt 1932-5-1 s.n. Butte Mountains near Chico Comment
  UC481580  Potentilla norvegica H. F. Copeland 1928-8-22 1066 Butte Jonesville 1524 Comment
  CHSC1065  Proboscidea lutea E. Walker 1941-9-6 Butte Oroville road. 60 Comment
  UCSC000640  Prunella vulgaris subsp. lanceolata Kate Conger 1907-1 s.n. Butte Brush Creek Comment
  CHSC94091  Prunus subcordata R. Fischer 2005-3-20 682 Butte Chico. Collected from Bidwell Park off of Pine Trail ca. 1/4 mi downhill from hwy 32. Shrubs growing on brushy north facing slope with an overstory of Big Leaved Maple. 426 Comment
  CHSC30416  Pseudobahia heermannii R. Banchero 1980-3-19 51 B Butte Ca. 5.5 mi e of Chico on Skyway. On w edge of plateau. 243 Comment
  CHSC108317  Pseudognaphalium californicum Lowell Ahart 2011-8-17 17630 Butte About 100 yards west of the table at the old homestead and southwest of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 239 Comment
  CHSC41872  Pseudognaphalium luteoalbum Lowell Ahart 1986-11-9 5455 Butte On the bottom of a pond, about 1/10 mile south of the clay burrow for Oroville Dam, 1/4 mile east of Larkin Road, about 6 miles south-west of Oroville. 36 Comment
  CAS-BOT-BC357589  Pseudognaphalium stramineum Lowell Ahart 1980-5-4 2184 Butte Thermalito 65 Comment
  CHSC52014  Pseudostellaria jamesiana L. P. Janeway 1988-6-25 2864 Butte Near Coon Cr and Near Bull Hill Rd 1.0 mi from the Skyway. 1554 Comment
  CHSC6614  Pseudotsuga menziesii var. menziesii M. MacArthur 1968-6-17 302 Butte Parking lot NE of building V, Chico State College campus. 60 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
  CHSC29706  Psilocarphus brevissimus var. brevissimus J. D. Jokerst 1980-5-28 790 Butte Top of North Table Mt., S of Cherokee Rd. 403 Comment
  UC195396  Psilocarphus brevissimus var. brevissimus A. A. Heller 1914-4-24 11315 Butte 8 mi from Chico (Chico-Oroville road) Comment
  CHSC28826  Psilocarphus oregonus J. D. Jokerst; T. B. Devine, D. Greenstein 1979-5-18 418 Butte Top of north Table Mt, ca 1.0 mi n of Cherokee Rd (at e edge of Mt). Below high water mark of vernal pools. 381 Comment
  UC478459  Psilocarphus oregonus E. B. Copeland 1931-7-20 698 Butte near Butte Creek House; Butte Creek, Jonesville 1700 Comment
  UCD135310  Psilocarphus tenellus L. Ahart 1977-4-15 1300 Butte Peter Ahart Ranch. 50 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
  CAS-BOT-BC148607  Ptelea crenulata Mrs. Brandegee 189- s.n. Butte Marysville Comment
  CAS-BOT-BC72549  Pteridium aquilinum Lowell Ahart 1983-9-21 4463 Butte along French Creek, about 3 miles north of the Sky Creek Dam, north of Strawberry Valley 900 Comment
  CHSC12130  Pteridium aquilinum var. pubescens J. M. Pitts 1972-4-16 122 Butte 6.1 mi ne past Honeyrun Bridge on Humbug Rd. 335 Comment
  CHSC32685  Pteridium aquilinum var. pubescens M. S. Taylor; L. Hanson 1981-3-31 3451 Butte SE side of Spur rd, ca. 3/4 mi n of its jct with Ponderosa Way, ca. 2 mi n of its jct with Hwy 70 at Jarbo Gap, ca. 17 air mi n of Oroville. 822 Comment
  UCD137841  Pteridium aquilinum var. pubescens A. A. Heller 1916-9-23 12660 Butte Sierra foothills near Forest Ranch. Comment
  CHSC61646  Pterospora andromedea Lowell Ahart 1993-9-8 7162 Butte On the north side of the ridge, about 1 mile east of Snow Mountain. 2072 Comment
  CHSC38621  Pterostegia drymarioides Vernon Oswald 1983-4-9 302 Butte Upper Bidwell Park, Chico, on the north rim ca. 1.4 mi e of the power lines. 350 Comment
  SEINET10959744  Puccinellia simplex Lowell Ahart 1982-4-29 Ahart 3396 Butte Normal size. On white alkali bare soil near dirt rd, ca. 3/4 mi w of check-in station, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. Common only in the bare alkali areas; uncommon in this area. 35 Comment
  CHSC52065  Pycnanthemum californicum B. Castro 1988-6-5 260 Butte Upper Little Chico Ck Cyn. 243 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
  UC474249  Pyrola asarifolia H. F. Copeland 1930-7-27 Butte Jonesville Comment
  CHSC33403  Pyrola dentata R. E. Preston 1981-7-8 24 Butte Ca. 0.8 km e of Humboldt Peak, ca. 5.5 km nne of Jonesville. 1952 Comment
  UC392204  Pyrola picta E. Bleopelaud Jul 1929 Butte Jonesville 1550 Comment
  UC474255  Pyrola picta E. B. Copeland 1930-7-21 Butte Jonesville: Hill above the hotel Comment
  UC474259  Pyrola picta H. F. Copeland 1930-7-26 Butte Jonesville: foot of Governament Trail Comment
  CHSC109223  Quercus X morehus B. Castro 2003-9-10 1461 Butte Ca. 15 mi NE of Oroville, on the slopes over the West Branch Feather Riber across from the Lime Saddle area on NW-facing slope along lower end of Nelson Bar Road, just below State Recreation Area boundary overhanging edge of road. 323 Comment
  UCD169445  Quercus berberidifolia L. P. Janeway; Matt Brown, Jamie Tuitele-Lewis 2005-4-12 8361 Butte Plumas National Forest; 12 m from the northeast shore of Paradise Lake, about 485 m east-southeast of the uppermost tip of the lake. 777 Comment
  CAS-BOT-BC62687  Quercus chrysolepis Lowell Ahart 1981-7-7 2918 Butte About 0.5 mile west of the Oroville Forbestown Road on the Black Bart Road, west of Forbestown 700 Comment
  CAS-BOT-BC62689  Quercus chrysolepis A. A. Heller 1918-5-5 13016 Butte Honey Run grade on a north slope 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
  CAS-BOT-BC86632  Quercus douglasii A. A. Heller 1913-10-1 11145 Butte Hills near Big Chico creek, E of Chico Comment
  CHSC42532  Quercus durata var. durata Lowell Ahart 1987-5-11 5618 Butte South of the Forbestown Ditch, about 2 1/2 miles north-east of Forbestown. 868 Comment
  CAS-BOT-BC62794  Quercus garryana var. breweri A. A. Heller 1915-4-12 11816 Butte near Cohasset Comment
  CAS-BOT-BC105144  Quercus kelloggii G. P. Rixford 1912-10-1 s.n. Butte Bidwell Ranch, Chico Comment
  CHSC39783  Quercus kelloggii Eloise Gallatin 1935-5-19 Butte Feather River Canyon. Comment
  CAS-BOT-BC61584  Quercus lobata A. A. Heller 1915-4-1 11791 Butte Low flat in the Sacramento valley near Durham 68 Comment
  CHSC6047  Quercus lobata M. MacArthur 1968-6-19 228 Butte SW side of Big Chico Creek ca. 30 ft. NE of Dining Hall, Chico State College campus. 60 Comment
  RSA87180  Quercus lobata E. E. Stanford 1930-6-15 1549 Butte Near Chico. Comment
  UC338639  Quercus wislizeni Lemmon Jun 1891 Butte Bidwell's ranch Comment
  UC5836  Quercus wislizeni unknown 1472 Butte Table Mountain, near Oroville Comment
  CAS-BOT-BC186694  Ranunculus John Thomas Howell 1976-4-2 51549 Butte About 2 miles southeast of Chico 60 Comment
  CHSC48698  Ranunculus aquatilis var. aquatilis Vernon Oswald 1987-8-10 3205 Butte Cluster of 3 snow lakes ca. 3 mi (air) s of Humbug Summit, 0.5 mi w of the Butte-Plumas county line, ca. 5.5 mi (air) se of Jonesville. At the edge of the largest lake. 1935 Comment
  POM196104  Ranunculus aquatilis var. capillaceus E. B. Copeland 1929-7-28 360 Butte Jonesville. 1500 Comment
  CHSC52777  Ranunculus aquatilis var. subrigidus Vernon Oswald 1983-8-4 952 Butte Chico Meadows, ca. 1 mi n of Butte Meadows. In stream in a meadow. 1292 Comment
  CHSC45398  Ranunculus arvensis Lowell Ahart 1977-4-28 1331 Butte In oat field, Peter Ahart Ranch, about 2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC53977  Ranunculus arvensis Vernon H. Oswald 1991-4-23 4528 Butte Whitman Ave, south of E. 20th St, in south Chico. Fields. 65 Comment
  JEPS119685  Ranunculus arvensis Lowell Ahart 2012-5-2 17961 Butte About 30 yards northeast of the Easter Cross Parking Lot, Upper Bidwell Park, about 1 mile east of Chico. Comment
  SEINET7073607  Ranunculus arvensis A. G. Vestal 1955-5-20 s.n. Butte Bank of Honey Run Road at Little Butte Creek. UTM Zone 10, 612831mE, 4399239mN. Coordinate datum: NAD27. Comment
  UCD80871  Ranunculus arvensis Robert E. Preston 2007-5-3 2473 Butte Chico, Upper Bidwell Park, N of park road, W of power lines. 91 Comment
  CAS-BOT-BC378989  Ranunculus arvensis 1976-4-16 s.n. Butte Humbug Road, at Chico Comment
  RSA299449  Ranunculus arvensis J. P. Smith 1974-4-20 7344 Butte Skyway Drive, 1 miles E of Hwy 99. 61 Comment
  CHSC35694  Ranunculus bonariensis var. trisepalus J. D. Jokerst 1982-4-19 1534 Butte Around the edges of a vernal pool at its high water mark. Ca. 200 meters S of the triangular intersection of Cherokee Rd. and Oregon Gulch Rd. Comment
  CHSC42050  Ranunculus canus Lowell Ahart 1986-4-4 5241 Butte Near North Honcut Creek, about 2 1/2 miles north and 3 miles east of Honcut, about 12 miles south of Oroville. 67 Comment
  UCD95793  Ranunculus canus Perry Allen 1961-3-9 s.n. Butte Vicinity of La Grange. Comment
  CHSC29047  Ranunculus muricatus R. A. Schlising 1980-4-14 3566 Butte Richvale vernal pools; 1/4 mi s of junction Hwy 162 to Oroville and Hwy 99, along latter and across from Thermalito Afterbay. In ditch at s end of area. Comment
  CHSC52690  Ranunculus occidentalis var. occidentalis Kirsten Tarp 1983-4-3 257 Butte On Bangor Pk Rd, 0.8 mi from jct with Bangor Hwy. Comment
  CHSC94086  Ranunculus occidentalis var. occidentalis R. Fischer 2005-4-10 677 Butte Chico. Collection from Bidwell Park next to 10 Mile House Road off Hwy. 32 approximately 4 miles north of Chico. Plants growing in a moist drainage at trailside near the junction of the Guardian Trail. 426 Comment
  CHSC41517  Ranunculus occidentalis var. ultramontanus Kirsten Tarp 1983-8-5 325 Butte Ca. 1.0 mi sw of Jonesville on Humboldt Rd. at Colby Creek. Near stream in meadow. 1487 Comment
  CHSC43498  Ranunculus pusillus Lowell Ahart 1979-5-20 1882 Butte On the edge of a depression, on the west side of the Western Pacific Railroad, about 2 miles south of Palermo. 33 Comment
  RSA0111937  Ranunculus pusillus Lowell A. Ahart 2015-5-5 20139 Butte About 30 yards north of Larkin Road, about 400 yards south of Larkin Road Boat Launch Area, near the Thermalito Afterbay, about 1 mile southwest of the Oroville Airport, about 6 miles (air) southwest of Oroville. 43 Comment
  UCD97314  Ranunculus uncinatus E. B. Copeland 1930-6-29 641 Butte Jonesville. 1500 Comment
  CHSC45612  Ranunculus uncinatus var. parviflorus Kirsten Tarp 1983-8-6 335 Butte Near Butte Meadows, 0.2 mi from jct. of Bull Hill Rd with Humboldt Rd. Near creek. 1325 Comment
  CHSC44156  Ratibida columnifera Vernon Oswald 1988-7-22 3611 Butte Harter's Cherokee Ranch located on the w side of Hwy 99 between Hwy 149 and Dry Creek. Along the edge of the ranch road where it parallels Hwy 99. 56 Comment
  RSA2158  Rhamnus rubra H. F. Copeland 1930-7-26 1379 Butte Jonesville. 1677 Comment
  UC870862  Rhamnus tomentella subsp. tomentella A. A. Heller 1915-5-17 11882 Butte 5 mi e Chico; Canyon of Chico Creek Comment
  CHSC2392  Rhododendron occidentale R. Carter 1965-6-1 216 Butte Found on Bald Rock Rd. 1.8 mi. E of intersection with Zinc Rd. on S side of road. 883 Comment
  CHSC46015  Rhododendron occidentale Lowell Ahart 1979-4-28 1849 Butte North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC65548  Rhododendron occidentale L. P. Janeway 1995-6-28 4821 Butte Top of Watson Ridge at junction of Roads 21N25; about 1.5 mi west of Kenebeck Ridge. 1249 Comment
  CAS-BOT-BC199746  Rhododendron occidentale var. californicum Javier Penalosa 1962-6-18 2457 Butte Near confluence of French and Peavine Crks. 609 Comment
  CAS-BOT-BC168127  Rhus aromatica Lowell Ahart 1983-4-10 3927 Butte About 1 1/2 miles north-east of Highway 99 & Pentz Road 100 Comment
  CHSC51844  Rhus aromatica Steven Triano 1987-4-7 37 Butte Ca 20 ft S of Honey Run Rd ca 2.7 mi E of The Skyway, out of SE Chico. 91 Comment
  CHSC44065  Rhynchospora californica L. P. Janeway 1988-5-30 2714 Butte Cyn of Big Chico Cr; upper Bidwell Park, 3.7 mi along Upper Park Rd from Wildwood Ave. Seep above Salmon Hole. 161 Comment
  SFV10395  Ribes amarum M. L. Vincent 1965-4-14 613 Butte Sierra Nevada Skyway, 1.5 miles north of Magalia. 760 Comment
  SEINET10482944  Ribes nevadaense Mary Susan Taylor 1981-4-14 Taylor 3532 Butte T22N R4E sw sec 12. Pulga SW quad. Mixed Coniferous Forest, loamy soil over rocky base, on Ponderosa Way(Rim Rd) ca. 2 mi N of Jarbo Gap on Hwy 70, ca. 20 air mi N of Oroville. 2900 ft. 884 Comment
  CHSC26784  Ribes nevadense M. S. Taylor 1978-5-6 1626 Butte E side of Cohasset Rd, ca. 8 mi n of Chico. 137 Comment
  CHSC3399  Ribes nevadense Alice L. Stoll 1966-4-30 142 Butte In pine forest on roadside bank alongside Highway 32, 37 miles N. of Chico. Comment
  CHSC3607  Ribes roezlii Gerry Carrauthers 1966-3-5 28 Butte E. of Chico along highway 32 toward Susanville ca. 12 mi. Comment
  UC1127544  Ribes roezlii J. E. Sowder 1933-7-5 104 Butte 2 mi se Promontory Point; Chico Quadrangle Comment
  UC478510  Ribes roezlii E. B. Copeland 1931-5-9 648 Butte Jonesville 1500 Comment
  CAS-BOT-BC362957  Rigiopappus leptocladus A. A. Heller; H. E. Brown 1902-5-12 5540 Butte Grade between Clear Creek and Paradise Comment
  CAS-BOT-BC340982  Robinia pseudoacacia Lowell Ahart 1968-4-20 s.n. Butte Peter Ahart Ranch, Honcut 45 Comment
  CAS-BOT-BC74456  Rorippa curvisiliqua Lowell Ahart 1979-5-20 s.n. Butte 2 miles south of Palerma. 35 Comment
  CHSC50026  Rorippa curvisiliqua var. occidentalis Lowell Ahart 1990-4-15 6451 Butte Below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/8 mile north-west of the Enterprise Bridge across Lake Oroville. 289 Comment
  CHSC36685  Rorippa curvisiliqua var. orientalis R. E. Preston 1982-7-21 347 A Butte At roadside; ca. 1/4 mi se of Philbrook Reservoir. 1706 Comment
  JEPS120657  Rorippa curvisiliqua var. orientalis Lowell Ahart 2013-10-26 19210 Butte On the south side of Philbrook Creek, below the high water line (strand) of Philbrook Reservoir. Comment
  CHSC23134  Rorippa nasturtium-aquaticum M. S. Taylor 1975-10-31 983 Butte Ca. 500 yds n of Pentz Rd, in Butte College Campus, by the creek, ca. 12 mi s of Chico. 91 Comment
  CHSC8751  Rorippa nasturtium-aquaticum S. Chulasmai 1966-5-20 36 Butte Heloepine Spring (Upper Bidwell Park, roadside). Comment
  CHSC33638  Rosa californica M. Merryman; R. A. Schlising 1979-9-23 46 Butte SW of Chico along Ord Ferry Rd, ca. 3.7 mi w of Dayton Four Corners. Just w of the meridian. Field edge at roadside. 35 Comment
  JEPS118337  Rosa californica Lowell Ahart 2011-8-17 17622 Butte On the east side of Big Chico Creek, about 40 yards west of Ten Mile House Road, about 3/4 mile (air) northeast of Chico 197 Comment
  RSA755419  Rosa californica L. Ahart 2009-8-3 16264 Butte About 100 yards west of the table at the old homestead and southwest of Ten Mile House Road, Upper Bidwell Park, about 3/4 air mile southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 240 Comment
  CAS-BOT-BC148122  Rosa gymnocarpa C. R. Quick 1941-6-7 41 -26 Butte Big Bar Mt. towards Coyote Gap Comment
  POM140263  Rosa gymnocarpa Kate Conger 1907-1 s.n. Butte Brush Creek. Comment
  CHSC71190  Rosa multiflora Lowell Ahart 1998-5-2 7958 Butte On the south side of Evans Reimer Road, about 1/4 mile east of Pennington Road, about 5 miles (air) southwest of Gridley. 21 Comment
  JEPS116658  Rosa multiflora L. P. Janeway, B. Castro 2010-4-30 9970 Butte Lower Bidwell Park, Chico Chico (along southeast side of Big Chico Creek about 160 m northeast of intersection of E, 8th Street and El Monte Avenue); Sacramento Valley 75 Comment
  SEINET8359729  Rosa pisocarpa Unknown 2007-6-23 19074 Butte Black Bart Road 1.2 miles from lower junction with Forbestown Road, ca 10 air miles east-southeast of Oroville. 655 Comment
  UC1926779 Image available Rosa pisocarpa subsp. ahartii Barbara Ertter, Lowell Ahart 2007-6-23 19074 Butte Butte County: Black Bart Road 1.3 miles from lower junction with Forbestown Road, ca 10 airmiles ESE of Oroville. 655 Comment
  CHSC43211  Rosa pisocarpa subsp. pisocarpa L. P. Janeway 1987-6-26 2287 Butte At Rag Dump. At mdw edge. 1173 Comment
  RSA716152  Rosa woodsii var. ultramontana L. Ahart 2005-7-13 12144 Butte About 20 yards S of the intersection of Forbestown Road and Black Bart Road. About 3.5 miles (air) SW of Forbestown. About 12 miles (air) E of Oroville. 749 Comment
  UCD92292  Rostraria cristata A. A. Heller 1914-5-19 11417 Butte Butte County. Comment
  CHSC31887  Rotala ramosior L. Ahart 1975-7-5 850 Butte Peter Ahart Ranch, Honcut. Along the edge of North Honcut Creek on mud. 45 Comment
  SEINET13711421  Rotala ramosior Lowell William Ahart, Lowell William Ahart 1999-1 8170 Butte 12 Air Mi. SW Chico, 2 Mi SE Ordbend, Sacramento River Comment
  CDA37503  Rotala ramosior G. D. Barbe, J. McCaskill 1990-9-5 4369 Butte Experimental fields of the Rice Experiment Station, West Hamilton Road at Riceton Highway, north of Biggs. 0 Comment
  CDA42869  Rubus armeniacus L. Ahart 2012-5-14 18055 Butte Just west of Table 12, south of Big Chico Creek, north of the paved road, Lower Bidwell Park, Chico. Comment
  CHSC37663  Rubus armeniacus T. B. Devine 1981-9-3 769 Butte In dry or drying mud at edge of Horseshoe Lake, Upper Bidwell Park, Chico. 106 Comment
  CHSC52473  Rubus armeniacus L. P. Janeway 1987-6-5 2133 Butte Along French Cr Rd 1.4 mi NE of OroQuincy Hwy and Stanwood Saddle. Along road at corner of plantation. 929 Comment
  CHSC95081  Rubus glaucifolius L. P. Janeway 2006-6-25 8705 Butte High Cascade Range. Along Cohasset Ridge and Cohasset Road about 0.5 km southwest of Anderson Mill site and about 5.9 air km north-northeast of Cohasset. 1128 Comment
  CHSC45820  Rubus laciniatus L. P. Janeway 1987-6-20 2263 Butte Slope above Rock Cr 2.0 mi from Lumpkin Ridge on rd to Moorville Ridge. Along edge of rd. 1104 Comment
  CAS-BOT-BC147204  Rubus parviflorus Lowell Ahart 1984-6-10 4695 Butte Along the road about 2 miles south-west of the Forbestown Diversion Dam, north-east of Forbestown 700 Comment
  CHSC45819  Rubus ursinus L. P. Janeway 1987-5-10 2033 Butte Near beginning of Butte Cr Tr, downstream of Forks of Butte and of the bridge (Doe Mill Rd). 640 Comment
  CHSC50800  Rudbeckia occidentalis var. occidentalis Vernon Oswald; Lowell Ahart 1990-7-31 4421 Butte Meadow at the headwaters of Concow Creek, ca. 4 mi north of Concow. 1097 Comment
  CHSC54432  Rudbeckia occidentalis var. occidentalis Vernon H. Oswald; Lowell Ahart 1991-7-15 4739 Butte Forest Rd 23N60 (Jordan Creek-Marble Creek Rd) at Marble Creek, east of Oroville-Quincy Hwy, ca. 5.75 miles (air) northeast of Brush Creek. On the east side of the creek just upstream from the bridge. 1051 Comment
  POM104793  Rumex acetosella C. C. Bruce 1897-05 1936 Butte Butte Creek. Comment
  POM280479  Rumex acetosella Lyman Benson 1929-06 s.n. Butte Graville. Comment
  CHSC1356  Rumex crispus H. Goodyear 1939-5-29 Butte Near Chico. 57 Comment
  UC204581  Rumex crispus A. A. Heller 1914-7-23 11595 Butte Chico Meadows Sierra Nevada 1219 Comment
  CHSC51008  Rumex fueginus Lowell Ahart 1990-8-15 6588 Butte Near McCabe Creek, below the high water line of Lake Oroville, about 1/2 mile south-west of the Enterprise Bridge across Lake Oroville. 228 Comment
  SEINET10871638  Rumex triangulivalvis var. oreolapathum Lowell Ahart 1984-6-8 Ahart 4675 Butte Along the dirt road near the water tower, above the generator, ca. 1 mi E of Ponderosa Dam, ca. 2 mi N of Forbestown; Yellow Pine Forest; 475 m. 475 Comment
  CHSC35029  Sagina apetala R. A. Schlising 1981-4-6 4017 Butte SW of Oroville along Hwy 70, 0.8 mi N of jct with Cox Lane. Comment
  JEPS94145  Sagina apetala Lowell Ahart 1998-6-9 8003 Butte ca. 7 mi. (air) n. Oroville (ca. 5/8 mi. n.w. of the lone oak tree, n.w. of the cow chute along Cherokee Rd., in tracks of dirt rd., North Table Mt.); North Table Mt. 396 Comment
  CAS-BOT-BC445664  Sagittaria cuneata E. B. Copeland 1930-7-29 405 Butte Above Jonesville 1700 Comment
  CAS-BOT-BC445727  Sagittaria latifolia Herbert L. Mason; Verne Grant 1946-8-14 13040 Butte Butte Sink Comment
  CAS-BOT-BC129905  Salix bonplandiana John Thomas Howell; Gordon H. True; Lewis S. Rose 1968-6-12 4294 Butte Feather River Canyon near Pulga Bridge 609 Comment
  CAS-BOT-BC129948  Salix bonplandiana A. A. Heller 1919-4-12 13103 Butte Cherokee mine in the blue oak and digger pine belt. Comment
  CHSC8626  Salix exigua E. L. Smith 1969-3-29 Butte 2 Mi. SE Chico. Comment
  JEPS119529  Salix exigua var. hindsiana Lowell Ahart 2012-4-20 17888 Butte On the east side of Big Chico Creek, about 20 yards west of the trail, about 200 yards west of Ten Mile House Road, about 3/4 mile west of Highway 32, about 9 miles northeast of Chico, south part of Upper Bidwell Park. Comment
  RSA4403  Salix geyeriana var. argentea E. B. Copeland 1931-6-10 618 Butte Jonesville, Butte Creek. 1500 Comment
  CAS-BOT-BC107833  Salix gooddingii Gordon H. True 1971-4-8 6454 Butte Gray Lodge Wildlife Area, Valley Grassland, 7 miles southwest of Gridley 24 Comment
  RSA0058980  Salix gooddingii Lowell A. Ahart 2012-4-3 17803 Butte North bank of North Honcut Creek, Peter Ahart Ranch, about 1 1/4 miles north and 2 3/4 miles east of Honcut, about 12 miles southeast of Oroville. 39 Comment
  CAS-BOT-BC104074  Salix hindsiana Lowell Ahart 1987-5-6 5540 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-BC104079  Salix hindsiana A. A. Heller 1915-5-16 11870 Butte Chico-Centerville road 3 miles from Chico Comment
  POM106719  Salix laevigata C. C. Bruce 1897-05 1788 Butte Big Chico. Comment
  CAS-BOT-BC125173  Salix lasiandra var. lasiandra Lowell Ahart 1977-4-5 913 Butte South Butte, Sutter Buttes 200 Comment
  JEPS119783  Salix lasiolepis Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18005 Butte South of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  JEPS22687  Salix lasiolepis Rimo Bacigalupi with Drs. Herbert and Lucille Mason 1958-4-24 6325 Butte just below Magalia Reservoir Magalia (banks of Little Butte Creek) 682 Comment
  SBBG126081  Salix lasiolepis L. Ahart 2012-3-9 17773 -A Butte middle of N Honcut Crk, 30 yards E of floodgate, Peter Ahart Ranch, ca 1 mi N and 2.5 mi E of Honcut 39 Comment
  POM107064  Salix melanopsis C. C. Bruce 1806 Butte Chico. Butte Creek. Comment
  SBBG29048  Salix melanopsis E. B. Copeland 1931-6-10 Butte Butte Crk, Jonesville 1500 Comment
  CHSC31750  Sambucus mexicana S. Posner 1972-9-21 Butte 50 yds. west of nord, 600 yds. south of Sacramento Ave, Chico. Comment
  CHSC90623  Sanicula bipinnata John Copeland 1980-2-26 11 Butte Ca. 1.1 mile se of Cohasset Rd., ca. 5 miles e of Chico airport. Comment
  SEINET10454566  Sanicula bipinnata Mary Susan Taylor 1980-2-23 Taylor 2320 Butte T23N R4E central west border of sec 30. Magalia serpentine area near jct of the Skyway and Coutelenc Rd. 701 Comment
  CHSC3468  Sanicula bipinnatifida Roger Jaegel 1966-3-2 21 Butte Collected four miles north east of Chico in upper Bidwell Park in an area of small drainage on a south slope. Upper Bidwell Park. Comment
  CHSC4149  Sanicula bipinnatifida var. flava R. Carter 1966-4-2 327 Butte Found ca. 7 mi. E of Oroville, ca. 1/8 mi. W of Feathervale at 6120 Woodleaf St. Rt., 50 yds. SW of house. 243 Comment
  UC1006698  Sanicula crassicaulis C. Ritchie Bell 1952-4-19 3 X419 Butte 3.8 mi ne of Berry Creek (in (an old home site)) Comment
  UCD127972  Sanicula crassicaulis Joseph M. DiTomaso 1976-5-23 473 Butte Lake Oroville, peninsula at south end. 274 Comment
  CHSC42665  Sanicula graveolens Vernon Oswald 1987-6-23 3030 Butte High Lakes Rd. 5.8 mi (odometer) n of Philbrook Rd. 1889 Comment
  CHSC7052  Sanicula tuberosa F. Kimball 1969-4-15 43 Butte 100 yds. w of Foster Rd., 1.5 mi s of Skyway. Paradise. 396 Comment
  CHSC11800  Sarcodes sanguinea John Copeland 1931-7-1 671 Butte Jonesville. 1550 Comment
  SEINET3238873 Image available Sarcodes sanguinea John Copeland 1931-7-1 671 Butte Jonesville. 1550 Comment
  UC474245  Sarcodes sanguinea H. F. Copeland 1928-8-17 Butte Jonesville Comment
  CHSC100974  Scandix pecten-veneris L. P. Janeway 2008-3-18 9234 Butte Cascade Range Foothills. East edge of City of Chico; south side of Humboldt Road 1.3 km northeast of Bruce Road. 123 Comment
  CHSC34224  Scandix pecten-veneris M. S. Taylor 1981-5-1 3589 Butte E side of Hwy 70, ca. 4 air mi nw of Oroville. 91 Comment
  CHSC39358  Sceptridium multifidum L. Ahart; P. Ahart 1983-9-21 4462 Butte Along French Creek, ca. 3 mi n of the Sly Creek Dam, n of Strawberry Valley. 900 Comment
  CAS-BOT-BC283622  Schedonorus pratensis Lowell Ahart 1988-6-29 6104 Butte Along the road to the Andy Smith Ranch, about 100 yards E of Bean Creek Road, about 1.5 miles SE of Little Bald Rock 914 Comment
  CHSC76016  Schoenoplectus mucronatus Lowell Ahart 1999-8-22 8185 Butte Large disturbed area along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ordbend, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  UC1564754  Schoenoplectus subterminalis V. Oswald and L. Ahart 1989-8-15 3939 Butte Soda Ridge Rd 1.4 mi w of its junction with Coon Hollow Rd ca 1.2 mi (air) n Philbrook Reservoir; n of Philbrook Reservoir 1752 Comment
  CHSC45186  Scirpus congdonii Lowell Ahart 1984-7-19 4754 Butte Bog like meadow, about 1/2 mile east of Bald Mountain, about 5 air miles north-east of Stirling City. 1905 Comment
  CHSC65604  Scirpus microcarpus L. P. Janeway 1995-8-2 4886 Butte Head of minor drainage into Haphazard Creek; west side of Oroville-Quincy Hwy 0.55 mi south of the county line; southwest corner of crossing of an un-numbered dirt road. 1396 Comment
  SEINET10537484  Scleranthus annuus Mary Susan Taylor 1980-4-18 Taylor 2520 Butte E side of Humbug Road, ca. 2 mi NE of Centerville; on dry bluff. With J.D. Jokerst. 488 Comment
  JEPS115330  Scleranthus annuus subsp. annuus Lowell Ahart 2009-4-22 15574 Butte West side of the Guardians Trail, about 100 yards north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  CHSC30031  Scribneria bolanderi L. Ahart 1980-5-4 2212 Butte About 50 m sw of the intersection of Forbestown Rd and Hurleton Swedes Flat Rd, ca. 1/2 mi se of Hurleton. 600 Comment
  RSA0024699  Scribneria bolanderi L. Ahart 2003-5-18 10180 Butte Peter Ahart Ranch. About 2 miles north and 2 miles east of Honcut, about 12 miles southeast of Oroville. 49 Comment
  CHSC2485  Scrophularia californica subsp. floribunda W. Fitzwater 1958-4-19 Butte Chico canyon, Chico area. 350 Comment
  CHSC793  Scutellaria californica 1929-5-19 Butte 5 mi. above Concow on road to Flea Valley (near Stirling). 609 Comment
  CHSC87793  Scutellaria californica Paul Maslin 2004-4-6 10 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). Comment
  SFV3240  Scutellaria tuberosa M. L. Vincent 1961-3-26 11 Butte Sierra Nevada Nelson Bar Road, 1 mile above Feather River bridge toward Pentz Road. Southeast of Paradise 330 Comment
  HSC32418  Sedella pumila Kitsy Kelly 1974-4-20 13 Butte 300 yds. S of the intersection of Pentz and Clark Rds. 61 Comment
  HSC66230  Sedella pumila Richard K. McGaugh 1979-4-7 4 Butte Table Mtn., 20 m W of Cherokee Rd., 5.65 km N of Oroville 457 Comment
  CAS-BOT-BC59135  Sedum spathulifolium Lewis S. Rose 1963-6-2 63075 Butte 2 miles South of Pulga, North Fork Feather River. 579 Comment
  SEINET10449687  Sedum spathulifolium Mary Susan Taylor 1975-4-29 Taylor 546 Butte Abundant on S side of Hwy 70, ca. 25 mi NE of Oroville, near Bear Creek, ca. 1 mi SW of Butte-Plumas County line; with Styrax officinalis ssp. californica, Draperia systyla; on granitic soils. Comment
  CHSC28876  Selaginella hansenii M. S. Taylor 1980-3-1 2346 Butte Overlooking Hamlin Canyon, ca. 1/4 mi se of Elliot Spring House on Neal Rd, ca. 2 mi sw of Paradise. 301 Comment
  SEINET10530435  Selaginella hansenii Mary Susan Taylor 1981-2-11 Taylor 3379 Butte T19N R6E sw sec 8. Big Bend quad. E side of Lumpkin Rd, along Macabes Creek, 2 mi n of jct of Lumpkin Rd & Oroville-Quincy Hwy (162), ca. 13 mi ne of Oroville. Riparian Wdlnd; 1500 ft. 457 Comment
  SEINET10530436  Selaginella hansenii Mary Susan Taylor 1980-3-1 Taylor 2346 Butte T21N R3E nw 1/4 sec 5. Near Elliot Spring House, S side of Neal Road, ca. 2 mi SW of Paradise. 302 Comment
  JEPS113224  Selaginella wallacei Lowell Ahart 2007-5-29 13930 Butte On the east side of Bald Rock Dome, on the west side of the Dome Trail, trail leads to the Middle Fork of the Feather River, about 1 3/4 miles by the trail from the trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Bi 585 Comment
  CAS-BOT-BC363283  Senecio aronicoides A. A. Heller 1915-6-11 11967 Butte Chico Meadows in the Sierra Nevada 1219 Comment
  CHSC89845  Senecio eurycephalus var. eurycephalus L. P. Janeway; B. Castro 2004-6-13 8135 Butte Northern High Sierra Nevada. Along Old Forbestown Road 2.5 road km southeast of Forbestown Reservoir Road; 3.6 air km east of Forbestown; near headwaters of Costa Creek. South-facing slopes. 829 Comment
  RSA95495  Senecio eurycephalus var. lewisrosei L. S. Rose 1954-5-31 s.n. Butte Feather River canyon, near Pulga 396 Comment
  CHSC71164  Senecio sylvaticus Lowell Ahart 1998-6-3 7966 Butte About 1/4 mile north of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  SBBG128460  Senecio sylvaticus L. Ahart 2012-4-9 17843 Butte high E cliff edge of Big Chico Crk, ca. 20 yards W of S Rim Trail, S part of Upper Bidwell Park, ca. 2.5 mi NE of Chico 206 Comment
  CHSC43199  Senecio triangularis Robert Banchero 1981-7-19 608 Butte 0.3 mi s of Balt Mt look-out Tower, on Bald Mt. Meadow. 1688 Comment
  CHSC47665  Senecio triangularis Lowell Ahart 1989-9-21 6389 Butte On the west side of the gravel road, south of French Creek, about 1 mile west of the Sly Creek Reservoir. 1158 Comment
  CHSC101087  Senecio vulgaris Lowell Ahart; John Dittes 2009-3-20 15502 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
  CHSC418  Senecio vulgaris J. Turner 1930-4-3 Butte Chico. 57 Comment
  CHSC26672  Sericocarpus oregonensis M. S. Taylor; M. Hayes, R. Schlising 1977-8-17 1502 Butte Scattered on E side of the Skyway, in Inskip. 1615 Comment
  CHSC34158  Sericocarpus oregonensis Lowell Ahart 1981-8-31 3053 Butte S of the jct of Black Bart Rd and Oroville-Forbestown rd, ca. 10 mi W of Forbestown. 750 Comment
  CDA31831  Sesbania punicea C. Owens 2010-7-2 s.n. Butte Oroville Wildlife Area, adjacent to the Feather River. 0 Comment
  CHSC31627  Setaria pumila L. Ahart 1975-6-23 802 Butte Along North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC49572  Setaria sphacelata Vernon Oswald 1987-8-30 3228 Butte Skyway ca. 2.4 mi e of the Butte Creek Bridge at the double set of transmission lines. In a roadside ditch. 173 Comment
  CHSC105952  Setaria viridis Lowell Ahart 2010-9-24 17237 Butte Near the southwest edge of the Golf Course, about 10 yards south of the footbridge, along trail from the end of Centennial Avenue to the footbridge across Big Chico Creek, Bidwell Park. 91 Comment
  JEPS87674  Sherardia arvensis Lowell Ahart 1994-4-22 7287 Butte about 3.5 mi sw Forbestown (s of the intersection of Black Bart Road and Forbestown Road) 609 Comment
  CDA6646  Sherardia arvensis L. Ahart 2002-5-7 9643 Butte East side of Cherokee Road, North Table Mountain, about 4 miles (air) north of Oroville. At the beginning of the southeast branch of Schirmer Ravine, about 50 yards east of the pond. Comment
  HSC43132  Sherardia arvensis Maralyn O'Meara 1974-4-20 286 Butte Cherokee-Table Mtn. Rd., 1 mi. S of Cherokee 305 Comment
  UC1594532  Sibara virginica Lowell Ahart 1992-4-17 6747 Butte about 1 1/4 mi s Butte City Highway (e side of Goodspeed Watt Road); s of Butte City Highway 30 Comment
  CHSC24938  Sidalcea calycosa Kimberly J. Weir 1976-4-15 5 Butte Ca. 1 mi s of Big Chico Creek and 1.5 mi ene of Chico, 20 ft n of Humboldt Road. 60 Comment
  CHSC3525  Sidalcea calycosa John Francis 1966-4-23 134 Butte 1.5 miles E. of covered bridge (Honey Run). Comment
  SEINET11991650  Sidalcea calycosa Unknown 1974-1 5 Butte on S side of Hwy 32, ca 1 mi E of intersection with Hwy 99, Chico 76 Comment
  CHSC41889  Sidalcea gigantea Lowell Ahart 1986-8-15 5386 Butte Along a small stream, along the dirt road, about 1/2 mile south-west of Bald Mountain, about 4 1/2 miles northeast of Stirling City. 1615 Comment
  CHSC23468  Sidalcea hartwegii J. R. Lee 1974-4-20 2 Butte On hill sw of Covered Bridge 7.2 mi from the Chico city limits on Honey Run Road. 137 Comment
  SEINET10970676  Sidalcea hartwegii Lowell Ahart 1984-5-7 Ahart 4594 Butte T22N R4E sec 31. Ca. 0.5 mi N of Kunkle Reservoir, along Kunkle Creek, ca. 2 mi S of Paradise, E side of Pentz-Magalia Hwy. Foothill Woodland; 600 m. 600 Comment
  UC1594540  Sidalcea hirsuta Lowell Ahart 1992-5-23 6771 Butte n side of Biggs Princeton Road about 2 mi w Biggs; w of Biggs 30 Comment
  CAS-BOT-BC205759  Sidalcea oregana Sally Bianco 1995-10-19 1044 Butte E side of Concow Rd. approx. 0.8 km S of Hoffman Rd. on south side of creek 760 Comment
  CAS-BOT-BC213186  Sidalcea robusta E. B. Copeland 1899-4-1 s.n. Butte Chico Comment
  UC1562425  Silene antirrhina Lowell Ahart 1990-5-25 6478 Butte about 1/8 mi nw Enterprise Bridge (across Lake Oroville, below high water line Lake Oroville, e of Enterprise Boat Launch Area); Lake Oroville 259 Comment
  CHSC44388  Silene bridgesii Lowell Ahart 1988-6-29 6103 Butte Near Bean Creek Road, east of a small branch of Bean Creek, about 3/4 mile south-east of Little Bald Rock. 944 Comment
  UC1594719  Silene douglasii Lowell Ahart 1992-7-29 6878 Butte about 3/4 mi nw Lotts Lake (about 1 mi ne of the Carr Mine); nw of Lotts Lake, ne of Carr Mine 1798 Comment
  CDA33638  Silene gallica R. A. Price 2010-5-1 s.n. Butte Along Oroville Reservoir; northwest of bridge. 0 Comment
  CHSC101677  Silene laciniata subsp. californica Lowell Ahart 2009-4-26 15624 Butte South of a small drainage, about 120 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles norhteast of Chico. 286 Comment
  CHSC65098  Silene occidentalis subsp. longistipitata Vernon H. Oswald 1995-8-2 7170 Butte High Cascade Range. Scotts John Rd. (Forest Rd. 26N11) 1.5 mi N of Jonesville Rd. (Forest Rd. 26N27), between Spurs A and B. 1828 Comment
  CHSC66154  Silybum marianum Vernon H. Oswald; Lowell Ahart 1996-5-27 7667 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 pasture in the S paddock of Tract 7, Sanctuary II. 32 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
  CHSC3658  Sinapis arvensis Robert D. Briggs 1966-3-15 R- 58 Butte 5 miles south of downtown Chico near hwy. U.S. 99E. Comment
  CHSC35654  Sisymbrium officinale R. E. Preston 1982-4-14 239 Butte N. Table Mountain, ca. 5 mi n of Oroville. 376 Comment
  RSA769596  Sisymbrium officinale L. Ahart 2009-5-8 15656 Butte S side of gravel road, about 10 yards E of Cedar Grove Parking Area in Lower Bidwell Park, Chico 67 Comment
  RSA795776  Sisymbrium officinale L. Ahart 2012-4-30 17933 Butte On the sides of the Bloody Pin Trail, about 100 yards west of Guardian Trail, about 0.5 miles west of Highway 32, about 7.5 miles northeast of Chico, south park of Upper Bidwell Park. 318 Comment
  CHSC38871  Sisyrinchium bellum Vernon Oswald 1983-3-31 229 Butte Upper Bidwell Park, on the s side of Upper Park Rd. 300 ft w of Parking Area N (Salmon Hole). 152 Comment
  CHSC46532  Sisyrinchium elmeri Lowell Ahart 1984-7-19 4759 Butte About 1/2 mile east of Bald Mountain, about 5 miles north-east of Stirling City. 1584 Comment
  UC844610  Smilacina racemosa A. A. Heller 1915-6-11 11968 Butte Chico Meadows Sierra Nevada 1219 Comment
  CHSC109076  Solanum jasminoides Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17870 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
  SEINET10546504  Solanum nodiflorum Lowell Ahart, Peter Ahart 1985-11-5 Ahart 5225 Butte Lake Oroville, about 1/2 mile west of the Ponderosa Dam, near where Sucker Creek flows into the South Fork of the Feather River. Comment
  JEPS108860  Solanum umbelliferum Lowell Ahart 2006-5-19 12633 Butte Road bank, on the west side of the dirt road, Bardees Bar Road, south of the small stream, about 1/4 mile southwest of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga 405 Comment
  POM69611  Solanum umbelliferum C. C. Bruce 1898-03 1872 Butte Plains [no specific locality given] Comment
  POM40827  Solidago californica C. C. Bruce 1897-06 1991 Butte Little Chico Comment
  CHSC43636  Solidago elongata Vernon Oswald 1983-8-4 954 Butte Near Big Chico Creek in a meadow. 1292 Comment
  SEINET10474358  Solidago occidentalis Mary Susan Taylor 1975-10-3 Taylor 926 Butte At bridge over Little Chico Creek on River Road, ca. 10 mi W of Chico; Ripar ian Woodland disturbed area. 37 Comment
  CHSC25459  Solidago velutina subsp. californica Hayes; Warner 1977-9-11 98 Butte At the intersection of Schott Rd. and Highway 32 above Forest Ranch, ca. 20 mi e of Chico. 640 Comment
  CHSC107121  Soliva sessilis L. P. Janeway 2011-4-26 10237 Butte Sacramento Valley. Oroville; in gravel parking area at east side of Feather River Ranger District office (875 Mitchell Ave.) 59 Comment
  CHSC111368  Sonchus oleraceus Lowell Ahart 2012-5-14 18061 Butte Planted area between sidewalk and Vallombrosa Avenue, west of Manzanita Avenue, just west of the bridge across Big Chico Creek, Lower Bidwell Park, Chico. 79 Comment
  CDA13256  Sorbus scopulina var. cascadensis G. F. Hrusa, T. D. Wilfred 1996-7-9 13107 Butte Plumas National Forest; Drainage of Jordan Creek, S of Hwy 162 near Roger's Cow Camp. Comment
  UCD92884  Sorghum R. J. Strong 1915-9-1 s.n. Butte Oroville. Comment
  CHSC4360  Sorghum halepense M. Hiller 1966-5-29 Butte In creek bed parallel to Manzanita Ave., Chico. Comment
  CHSC118036  Spergula arvensis subsp. arvensis Daphne K. Christopher; Hannah Stevens, Lowell Ahart 2003-4-21 233 Butte Off Hwy 99. Ahart Family Ranch along boundary on access road and edge of field. 41 Comment
  CHSC102718  Spergularia bocconi Lowell Ahart 2009-7-3 15986 Butte On the north side of the road, 30 yards west of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 30 yards east of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  CHSC94600  Spergularia rubra Lowell Ahart 2006-9-11 13280 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
  SEINET10483632  Spiraea prunifolia Mary Susan Taylor Taylor 444 Butte Campus of the California State University, Chico. 61 Comment
  CAS-BOT-BC236692  Sporobolus cryptandrus Vernon Oswald 1989-6-8 3802 Butte Hwy 70, ca. 0.5 mi n of Truex Road, n of the Hwy 70 bridge over the North Fork of teh Feather River 408 Comment
  SEINET8037324  Stachys chamissonis H. E. Brown 1897-1 836 Butte Near Clear Creek. Comment
  CDA30221  Stachys pycnantha L. Ahart 2009-8-3 16259 Butte Drainage on east 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
  SEINET10499271  Stachys pycnantha Lowell Ahart 1983-9-17 Ahart 4428 Butte T22N R4E se section 31. Ca. 1/8 mi ne of Kunkle Reservoir, south of Paradise. Foothill Woodland; 600 m. 600 Comment
  RSA452234  Stanleya pinnata M. M. Boney 1897-1 s.n. Butte [No locality information provided] Comment
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Feb 18 2009
  CAS-BOT-BC175313  Stellaria borealis subsp. sitchana E. B. Copeland 1929-7-1 s.n. Butte Jonesville 1500 Comment
  RSA739620  Stellaria borealis subsp. sitchana L. P. Janeway, David Toren, Chris Christofferson, Heather Koeth, Duryea Delacroix 2008-6-10 9404 Butte Northern High Sierra Nevada, Plumas National Forest, along Coon Creek about 100m NE of Rogers Cow Camp campground, about 500 m W of Oroville Quincy Hwy. 1234 Comment
  CDA42900  Stellaria media L. Ahart 2012-6-14 18186 Butte On the south side of the path, south of CARD Community Center, Lower Bidwell Park, Chico. Comment
  CAS-BOT-BC395115  Stellaria nitens Lowell Ahart 1988-3-27 5935 Butte Along the N Fork of the Feather River, a little N of the Poe Power House, about 2 miles SE of Jarbo Gap 274 Comment
  CHSC10654  Stellaria nitens Lowell Ahart 1969-3-27 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC96226  Stellaria nitens R. Fischer 2006-4-25 973 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 ca. 0.5 miles s of end of upper park property. Plants growing on 7 ft. boulder on a n facing hillside above Big Chico Creek. 259 Comment
  UC1609074  Stephanomeria lactucina Lowell Ahart 1993-6-26 7027 Butte about 1 mi w Lost Creek Reservoir (w side of dirt road); Mooreville Ridge 1188 Comment
  CHSC118928  Stephanomeria tenuifolia J. M. Graut 1930-6-1 Butte Cascade Mtns. Comment
  SD216  Stipa E. B. Copeland 1929-7-16 335 Butte Jonesville, scattered in low woods 1500 Comment
  SEINET10508395  Stipa nelsonii Mary Susan Taylor, L. Hanson 1981-4-10 Taylor 3522 Butte T22N R4E ne sec 2, Pulga SW quad. S-facing barren serpen- slope ca. 50 ft. up from creek, ca. 1/4 mi n of Pine Cluster Ranch, base of open dry serptentine outcrop between Concow Rd and a large knoll, ca. 6 mi n of Jarbo Gap on Hwy 70; 2400 ft. 721 Comment
  SEINET10508396  Stipa occidentalis Mary Susan Taylor 1978-7-18 Taylor 1707 Butte On top of Humboldt Peak, at Humboldt Summit, on Butte-Tehama County line. 2159 Comment
  CDA25173  Streptanthus diversifolius L. Ahart 1998-6-3 7967 Butte About 1/4 mile north of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  CHSC7047  Streptanthus diversifolius Darron Cook 1969-4-22 66 Butte W. side road top Table Mtn. ca. 7 mi n of Oroville. Comment
  CAS-BOT-BC86997  Streptanthus diversifolius Richard Johnson 1950-4-16 s.n. Butte Table Mountain, 5 miles north of Chico. Comment
  JEPS98677  Streptanthus drepanoides Lowell Ahart 2000-5-31 8420 Butte 3 mi SE of Paradise (below the high water line of Lake Oroville, about 400 yds E of where Kunkle Creek enters Lake Oroville, E of the Kunkle Power House) 271 Comment
  CHSC35749  Streptanthus polygaloides R. E. Preston 1982-5-18 285 Butte Ca. 0.5 mi sw of Forbestown Dam. 640 Comment
  HSC96693  Streptanthus polygaloides L. P. Janeway 2006-5-28 8647 Butte N High Sierra Nevada, NW side of Rim Rd. (Ponderosa Way) at S end of Rocky Ridge and S end of its serpentine openings 847 Comment
  HSC96717  Streptanthus polygaloides L. Ahart 2006-5-10 12612 Butte N side of poor dirt road, Bardees Bar Rd., 100 yds. N of poor bridge across N Fork of Feather River at Bardees Bar, 2.5 mi. SW of Pulga 355 Comment
  CHSC36692  Streptanthus tortuosus R. E. Preston 1982-5-18 284 Butte On s side of Forbestown reservoir, ca. 4 mi ne of Forbestown. 579 Comment
  UCD164181  Streptanthus tortuosus N. Ivalu Cacho; Sharon Y. Strauss, Patrick J. McIntyre 2011-4-10 IC-SS 188 Butte Table Mountain. 1092 Comment
  CHSC116998  Streptanthus tortuosus var. pallidus Lowell Ahart 2016-6-4 20917 Butte On the north side of Lumpkin Road, about 100 yards north of McCabe Creek, about 3 miles (air) west of Forbestown. 387 Comment
  CHSC21273  Streptanthus tortuosus var. suffrutescens M. S. Taylor 1973-4-21 13 Butte Ca. 4 mi s of Cherokee, ca. 100 yds w of Cherokee Rd, on Table Mountain. 373 Comment
  CHSC93178  Streptanthus tortuosus var. tortuosus L. P. Janeway 1994-6-17 4666 Butte Northern High Sierra Nevada. Northwest side of canyon of North Fork Feather River, +-overlooking Cresta; along Pulga Road (Camp Creek Road) 6.1 mi northeast of Pulga Bridge (Hwy 70). Southeast-facing road cutbank. 670 Comment
  CHSC46873  Suaeda calceoliformis Vernon Oswald 1989-9-6 3981 Butte West Liberty Rd along the n boundary of Gray Lodge Wildlife Area, 0.8 mi w of Pennington Rd. Roadside drainage. 19 Comment
  UCSB57876  Suaeda calceoliformis Oswald, Vernon 1989-9-6 Butte West Liberty Rd.; along the N boundary of Gray Lodge Wildlife Area; 0.8 mi. W of Pennington Rd.; T17N R1E nw/S12 19 Comment
  UC878392  Swertia albicaulis var. nitida Helen M. Edwards 1917-6-6 Butte De Sabla Comment
  UC1119963  Symphoricarpos mollis P. L. Johannsen 1936-7-29 972 Butte 1 mi n junction of Butte Creek and Secret Creek; Paynes Creek Quad. 1280 Comment
  CHSC20898  Symphyotrichum bracteolatum M. S. Taylor 1975-8-31 884 Butte On Ernies Island in Butte Creek, ca 50 ft S of Humboldt Rd, ca 1/2 mi E of Butte Meadows. 1341 Comment
  CAS-BOT-BC97689  Symphyotrichum chilense H. E. Brown 1896-9-15 80 Butte near Clear Creek 53 Comment
  CAS-BOT-BC97687  Symphyotrichum chilense Lowell Ahart 1985-10-12 5197 Butte near the east side of Kunkle Reservoir, about 2 miles south of Paradise 502 Comment
  JEPS124195  Symphyotrichum spathulatum var. spathulatum Lowell Ahart 2015-10-9 20550 Butte About 100 yards east of the bridge across the Wes Branch of the Feather River, about 2 miles (air) northwest of Philbrook Reservoir. Comment
  CAS-BOT-BC98372  Symphyotrichum subulatum var. parviflorum A. A. Heller 1923-10-13 13828 Butte About the rice fields near Richvale Comment
  CHSC36299  Tanacetum vulgare M. S. Taylor 1982-8-16 4992 Butte S end of Stirling City along both side of the Skyway. 1036 Comment
  CDA42865  Taraxacum erythrospermum L. Ahart 2012-5-14 18044 Butte Along the edges of the paved road, between Tables 7 & 8, northeast of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CHSC19952  Tauschia hartwegii M. S. Taylor 1975-2-16 382 Butte Ca. 1/4 mi w of Pentz-Magalia Hwy, ca. 5 mi s of Paradise, in vicinity of Lime Saddle Reservoir. Comment
  POM82769  Tauschia hartwegii C. C. Bruce 1897-05 2048 Butte Little Chico Comment
  SEINET10454608  Tauschia hartwegii Mary Susan Taylor 1975-3-3 Taylor 404 Butte Dam area, ca. 1/4 mi N of Richardson Springs camp, ca. 8 mi N of Chico. Associates: Umbellularia californica, Nemophila heterophylla, Aristolochia californica, Montia perfoliata. Riparian Woodland. 91 Comment
  CHSC34795  Tauschia kelloggii M. S. Taylor 1980-5-8 2604 Butte Ca. 3 mi n of Forest Ranch, ca. 1 mi e of Hwy 32. 853 Comment
  CHSC99558  Tauschia kelloggii L. P. Janeway 2008-5-26 9390 Butte Northern High Sierra Nevada. Low ridge near saddle at head of Empire Creek, about 1.6 km west of Flea Valley. 1097 Comment
  CHSC81445  Taxus brevifolia Julie Rose 2000-4-18 86 Butte Paradise Lake. Along trail on the rim of the lake nearest Coutelenc Road. About 30 feet from the water. 731 Comment
  CHSC12405  Tellima grandiflora Lowell Ahart 1973-5-31 Butte Near Little North Fork, Feather River. 1066 Comment
  CHSC111385  Thalictrum fendleri var. polycarpum Lowell Ahart 2012-4-30 17946 Butte On the south side of the path, near the sign, southwest of the intersection of Vallombrosa Avenue and Manzanita Avenue, Lower Bidwell Park, Chico. 80 Comment
  CHSC52196  Thalictrum fendleri var. polycarpum L. P. Janeway 1989-5-11 3232 Butte Along Deadwood Cr at jct of Concow and Jordan Hill Roads. 518 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
  CHSC25274  Thymus vulgaris K. R. Stern 1977-6-25 Butte Comment
  CHSC3589  Thysanocarpus curvipes Susan Carrauthers 1966-2-28 31 Butte Ca. 3 mi N.E. of Bidwell Golf Course and ca. near Salmon Hole of Chico Creek. 8 mi N.E. of city of Chico. Comment
  CHSC3774  Thysanocarpus curvipes R. L. Adams 1964-3-24 85 Butte 1 mi. W. Chico on W. Sacramento Ave. on S. side of road in orchard 20' from road. W. of Chico. Comment
  SFV1538  Thysanocarpus curvipes M. L. Vincent 1961-3-28 13 Butte Sierra Nevada Skyway on road from Paradise to Chico; overlooking "Little Grand Canyon." Dry mesa. 215 Comment
  CHSC35008  Thysanocarpus curvipes var. elegans R. E. Preston 1982-2-25 180 Butte Ravine of Chico Creek at former diversion dam, Upper Bidwell Park; ca. 5.5 mi ene of downtown Chico. 91 Comment
  CHSC83906  Thysanocarpus curvipes var. elegans Lowell Ahart 2003-4-10 10066 Butte On the east rim of South Table Mountain, about 2 1/2 miles (air) north of Oroville. 332 Comment
  POM180918  Tofieldia glutinosa subsp. occidentalis H. F. Copeland 1928-8-21 894 Butte Near head of Willow Creek, Neighborhood of Jonesville. 1524 Comment
  CHSC96241  Tonella tenella R. Fischer 2006-4-4 984 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east -side addition along Hwy. 32. Plants growing on a cut bank along 10 Mile House Road where a seasonal stream crosses the road, bottom of road near Big Chico Creek. 228 Comment
  JEPS126558  Torilis arvensis Lowell Ahart 2016-5-24 20851 Butte About 150 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. Comment
  RSA190691  Torilis arvensis T. C. Fuller 1967-6-27 16033 Butte N side of Durham Hwy., 1.1 mi. W of Hwy 99, 0.2 mi E of Hamlin Rd., Durham Comment
  CHSC42683  Torilis arvensis subsp. arvensis Vernon Oswald 1985-6-5 1809 Butte River Rd. 0.7 mi sw of its jct. with Chico River Rd. 36 Comment
  CHSC60951  Torilis arvensis subsp. purpurea Lowell Ahart 1993-6-16 6969 Butte On the west side of a small meadow, south-west of the intersection of Black Bart Road and Forbestown Road, about 3 1/2 (air) miles south-west of Forbestown. 609 Comment
  CHSC12766  Torilis nodosa L. V. Ritter 1969-5-5 263 Butte Ca 200 yds. w of Horseshoe Lake, Bidwell Park, 50 yds. n of the Park Rd. Comment
  UC140507  Torilis nodosa Dr. E. B. Copeland 1903-5-2 3018 Butte Chico Comment
  CAS-BOT-BC81362  Torreya californica Lewis S. Rose 1963-6-2 63072 Butte 2 mi south of Pulga, North Fork of Feather River 579 Comment
  CAS-BOT-BC81372  Torreya californica Lowell Ahart 1983-7-29 4252 Butte about 2 miles east of Milsap Bar, about 25 miles north-east of Oroville 1000 Comment
  SD53  Torreya californica Mrs. R. M. Austin 1883-1 Butte Comment
  CHSC61656  Torreyochloa pallida var. pauciflora Lowell Ahart 1993-9-13 7234 Butte In Bolt Creek, about 1 mile south-east of Butte Meadows. 1325 Comment
  JEPS87485  Torreyochloa pallida var. pauciflora Lowell Ahart 1993-7-23 7097 Butte about 6 air mi ne of Feather Falls (about 100 yards w of bridge across Fall River, on w side of Fall River); Fall River 1036 Comment
  CHSC7042  Toxicodendron diversilobum Paul Kinnison 1969-5-7 6 Butte Bidwell Park, Chico. 10 yds. s of Salmon Hole Parking lot. 91 Comment
  UCD80436  Toxicoscordion fremontii CNPS SN Foothill Team 2005-4-14 SNFN 0032 a Butte Private Rock Ranch pasture, about 120 m south of the ranch house and about 15 m east of the ephemeral creek running through the property. 95 Comment
  CHSC34708  Tragopogon dubius M. S. Taylor 1981-5-22 3794 A Butte Around large landing on saddle of ridge n of Flea Valley Creek and Pulga, ca. 5 air mi e of Magalia. 1097 Comment
  CHSC38394  Tragopogon porrifolius Vernon Oswald 1983-4-24 365 Butte Upper Bidwell Park, Chico, at the base of the s dike of Horseshoe Lake. 97 Comment
  CHSC94352  Triantha occidentalis subsp. occidentalis Lowell Ahart 2006-7-25 13067 Butte West part of a large meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1569 Comment
  CHSC102306  Trichostema lanceolatum Lowell Ahart 2009-9-13 16405 Butte Peter Ahart Ranch, about 2 miles north and 1/4 mile east of Honcut, about 12 miles (air) south of Oroville. 100 Comment
  CHSC26629  Trichostema lanceolatum Hayes 1977-9-14 126 Butte Growing on partially disturbed ground on Butte College Campus at the intersection of Clark and Pentz Roads. 90 Comment
  CHSC52083  Trichostema lanceolatum B. Castro 1987-10-3 234 Butte Table Mtn, on e side Cherokee Rd ca 0.5 mi nw of its jcn with Oregon City Rd. 42 Comment
  CHSC64108  Trichostema lanceolatum B. Castro 1987-9-25 230 Butte Fernandez Grant area. Field at jcn Biggs East Rd and Dos Rios Rd at e side of East Biggs. 33 Comment
  UCR188504  Trichostema lanceolatum George K. Helmkamp, E. A. Helmkamp 2007-10-7 13077 Butte Northern Sacramento Valley, along Biggs East Highway, 1.6 miles east of CA-99 in Biggs 35 Comment
  CHSC60991  Trichostema oblongum Lowell Ahart 1993-6-20 6983 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC86573  Trientalis latifolia L. P. Janeway; Gavin Blosser, Adam Henderson 2003-4-30 7767 Butte Northern Sierra Nevada Foothills. Just above North Fork Feather River arm of Lake Oroville, south side of lake; 2.8 km northeast of Bloomer Hill. 280 Comment
  POM76369  Trientalis latifolia C. C. Bruce 1897-05 s.n. Butte Forest- Ranch. Comment
  RSA460854  Trientalis latifolia Michael A. Vincent 1962-4-18 208 Butte 3 miles E of Countolenc Road at Whiskey Flats near Feather River Comment
  JEPS122223  Trifolium Lowell Ahart 2014-4-20 19393 Butte About one mile