Search Results — 2000 specimen records retrieved (1609 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)

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

BerkeleyMapper with layers and yellow flags

Download Options:
Select all records · Select records with coordinates

Include annotations and voucher information

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

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

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

Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page.
A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CHSC3900  Abies concolor R. Carter 1966-7-31 498 Butte 17 mi NE of Oroville on W side of Big Bald Rock along E side of Big Bald Rock Rd. 1066 Comment
  SEINET10530581  Abies magnifica Mary Susan Taylor 1977-8-17 Taylor 1487 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
  UC600580  Abies magnifica var. magnifica H. F. Copeland 1931-6-11 Butte near Jonesville (woods above Kirby Meadows) Comment
  CHSC51842  Acer circinatum L. P. Janeway 1988-7-2 2938 Butte Marsh/mdw at upper reach of Brush Cr, ca 1.5 mi S of 'town' of Brush Creek. 952 Comment
  CAS-BOT-BC331602  Acer macrophyllum A. A. Heller 1919-5-17 13166 Butte Banks of the Feather River near Stirling Comment
  CHSC44463  Acer macrophyllum Lowell Ahart 1988-3-27 5934 Butte along a dirt road west of the Poe Power House, east of the North Fork of the Feather River, about 2 miles southeast of Jarbo Gap. 274 Comment
  SFV10861  Acer macrophyllum M. L. Vincent 1963-6-8 409 Butte Concow Lake, Concow Road - Nelson Bar Road. 615 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
  UCSB62939  Acer macrophyllum Sarr, Dan 1995-7-29 Butte 5 mi of Forest Ranch on Highway 32 1000 Comment
  CHSC5948  Acer negundo var. californicum M. MacArthur 1968-6-18 206 Butte SE side of Big Chico Creek, ca. 30 ft. N of Dining Hall, Chico State College campus. 60 Comment
  CAS-BOT-BC21705  Achillea millefolium Clarence Roy Quick 1964-7-9 64 -60 Butte North of Jarbo Gap Comment
  POM289125  Achillea millefolium Lyman Benson 3957 Butte First Summit, Oroville-Quincy, Sierra Nevada, Feather River Watershed 1829 Comment
  CAS-BOT-BC210634  Achnatherum lemmonii Lowell Ahart 1987-7-8 5793 Butte Along Big Bar Mountain Road, about 3 miles south-west of Coyote Gap, south-east of Pulga 1280 Comment
  CAS-BOT-BC210639  Achnatherum lemmonii R. A. Schlising 1978-4-23 3229 Butte Magalia; just s of the Magalia Reservoir (just w of S. T. RR and Coutelenc Road) Comment
  CAS-BOT-BC210641  Achnatherum lemmonii John Thomas Howell 1962-6-16 37566 Butte Magalia 731 Comment
  CDA13870  Achnatherum lemmonii G. F. Hrusa, T. D. Wilfred 1997-5-7 13728 Butte Sierra Nevada; above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. Comment
  CHSC27796  Achnatherum lemmonii A. K. Bos 1978-3-28 6 Butte Along Oakway Rd, 5 mi ene of Magalia, e of the Feather River. Comment
  CHSC26669  Achnatherum nelsonii subsp. dorei M. S. Taylor; M. Hayes, R. Schlising 1977-8-17 1481 Butte At Humboldt Summit, at Butte-Tehama county line, on Butte side. 2133 Comment
  CHSC31213  Achnatherum occidentale subsp. californicum M. S. Taylor; J. D. Jokerst 1979-7-21 2164 Butte Humboldt Peak, at Humboldt Summit. 2154 Comment
  HSC68162  Achyrachaena mollis J. P. Smith, J. O. Sawyer 1973-4-14 6044 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  CHSC102163  Acmispon americanus var. americanus Lowell Ahart 2009-6-19 15930 Butte On dry soil, on the north side of Ten Mile House Road, Upper Bidwell Park, about 3/8 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 379 Comment
  CHSC876  Acmispon brachycarpus M. Roberson 1956-4-23 Butte SW of Paradise, along Skyway. 426 Comment
  JEPS120584  Acmispon brachycarpus Lowell Ahart 2013-11-18 19281 Butte Below the high-water line of Lake Oroville, about 150 yards northeast of the boat ramp at the end of Stringtown Road, about 50 yards north of the road, about 2.5 air miles northeast of Hurleton. Comment
  UCD103752  Acmispon denticulatus A. A. Heller 1914-3-28 11238 Butte Hills 8 miles north of Oroville. Comment
  JEPS120601  Acmispon nevadensis Lowell Ahart 2013-11-17 19269 Butte About 60 yards east of McCabe Creek, below the high water line of Lake Oroville, about 5/8 mile southwest of the enterprise Bridge across Lake Oroville. Comment
  CAS-BOT-BC412593  Aconogonon alaskanum E. B. Copeland 1930-8-4 628 Butte Jonesville 1500 Comment
  CHSC39125  Aconogonon davisiae R. A. Schlising 1982-7-12 4318 Butte Near Humbug Summit in n part of county. Near Humbug Road. 2011 Comment
  JEPS108865  Adenocaulon bicolor Lowell Ahart 2006-7-25 13053 Butte West edge of a large meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
  CHSC20253  Adiantum aleuticum W. E. Hartman 1972-4-29 1 Butte Abundant 500 ft. from Centerville Rd., ca. 8 mi e of Centerville Cemetery. 249 Comment
  CHSC20256  Adiantum aleuticum G. S. Ellmore 1972-4-20 136 Butte On Humbug Road ca. 13 km. Ne of Covered Bridge ca. 30 m. e of roadside. Comment
  CHSC30851  Adiantum capillus-veneris L. Ahart 1980-9-10 2628 Butte Ca. 1 mi ne of Millsap Bar, ca. 25 mi ne of Oroville. 900 Comment
  SEINET7728124  Adiantum emarginatum C. C. Parry 2000-1 Butte Chico Comment
  CHSC90135  Adiantum jordanii Greg Johansen 1983-4-16 1 Butte About 200 yds south of Butte Creek and 200 yds southeast of the Covered Bridge, 6 mi east-southeast of Chico. 274 Comment
  CHSC99560  Adiantum jordanii L. P. Janeway 2008-6-22 9421 Butte Northern Sierra Nevada Foothills. Canyon draining on east side of Dark Canyon Road 90 m north of the gate to the boat ramp into Lake Oroville. North-facing slope. 294 Comment
  CHSC97342  Aegilops triuncialis L. P. Janeway 2007-6-11 9037 Butte Northern High Sierra Nevada. Plumas National Forest; along Road 20N67 1.1 km northwest of Lumpkin Road, 2.6 km west of Feather Falls town site. 757 Comment
  CHSC44185  Agoseris grandiflora V. Oswald; L. Ahart 1988-7-13 3576 Butte Road to High Lakes E of Philbrook Resevoir. 1859 Comment
  CHSC42474  Agoseris heterophylla Lowell Ahart 1987-5-6 5497 Butte Along the North Fork of the Feather River, Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC90943  Agoseris heterophylla Lowell Ahart 2005-4-18 11730 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
  CHSC29301  Agoseris retrorsa J. D. Prouty 1980-4-17 80 .69 Butte E of Yankee Hill Road. 518 Comment
  SEINET10855011  Agrostis avenacea Lowell Ahart 2008-5-21 Ahart 14779 Butte T20N, R6E, southwest 1/4 Section 33. Below the high water line of Lake Oroville, on the north and south side of the South Fork of the Feather River, about 1.4 mile northwest of the Ponderosa Dam. 246 Comment
  UCD51814  Agrostis avenacea Bill B. Fischer 1977-6-1 s.n. Butte Biggs Rice Exper. Sta. Comment
  CAS-BOT-BC127445  Agrostis elliottiana Lowell Ahart 1983-6-26 4166 Butte Near Bean Creek Road, about 0.25 mile south of Little Bald Rock, about 20 miles northeast of Oroville. 1000 Comment
  CHSC41912  Agrostis elliottiana Lowell Ahart 1983-6-26 4166 Butte Near Bean Creek Road, about 1/4 mile south of Little Bald Rock, about 20 miles north-east of Oroville. 1000 Comment
  CAS-BOT-BC127374  Agrostis exarata Lowell Ahart 1988-7-31 6152 Butte On the east side of the West Branch of the Feather River, north of the bridge, about 4 road miles north of Stirling City. 914 Comment
  CHSC42907  Agrostis exarata Lowell Ahart 1987-7-3 5765 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  UCD52371  Agrostis exarata P. B. Kennedy 1920-8-9 X 3098 Butte Chico, Field - Campus - Berkeley. Comment
  CHSC39258  Agrostis hendersonii Lowell Ahart 1983-6-26 4167 Butte Near Bean Creek Road, about 1/4 mile south of Little Bald Rock, about 20 miles north-east of Oroville. 1000 Comment
  CAS-BOT-BC138849  Agrostis microphylla Lowell Ahart 1979-6-2 s.n. Butte Peter Ahart Ranch. Honcut. 50 Comment
  CDA34632  Agrostis pallens L. Ahart 2009-6-19 15929 Butte About 30 yards south of the fence and about 100 yards east of Ten Mile House Road, Upper Bidwelll Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. Comment
  JEPS94298  Agrostis pallens Lowell Ahart 1997-8-1 7772 Butte about 8 air mi ne of Stirling City (about 1/4 mi e of Table Mountain, on e side of Little Kimshew Creek, Snow Meadow); Snow Meadow, Little Kimshew Creek 1524 Comment
  SEINET10888110  Agrostis pallens Lowell Ahart 2007-5-29 Ahart 13965 Butte T21N, R6E, Section 28. Seep on 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 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 Big Bald Rock, about 16 miles (air) northeast of Oroville. 586 Comment
  CHSC63305  Agrostis stolonifera Lowell Ahart 1994-6-6 7314 Butte On the south edge of Cottonwood Road, on the east side of the overpass over Highway 70, about 3 1/2 miles (air) north of Oroville. 60 Comment
  RSA769591  Agrostis variabilis L. Ahart 2010-9-28 17257 Butte About 20 yards west of Big Kimshew Creek, about 100 yards east of the poor dirt road, about 1.5 air miles northeast of Jones Meadow, about 2.5 air miles southeast of Philbrook Reservoir. 1887 Comment
  CAS-BOT-BC47976  Ailanthus altissima John Thomas Howell 1959-9-20 34627 Butte Sierra Nevada - Lower foothills, eastern outskirts of Oroville Comment
  UC1130794  Aira caryophyllea J. E. Sowder 1933-6-20 86 Butte 1 1/4 mi n Yankee Hill; Chico Quadrangle Comment
  JEPS122219  Alisma lanceolatum Lowell Ahart 2014-4-25 19405 Butte On the west side of Richvale South Highway, south of the intersection of Richvale West Road and Richvale South Highway, Richvale. Comment
  CHSC38759  Alisma triviale Vernon Oswald 1983-6-29 793 Butte Upper Bidwell Park, Chico, ca. 300 ft w of Day Camp. In a swampy oxbow of Chico Creek. 91 Comment
  RSA0037497  Alisma triviale Lowell A. Ahart 2013-7-9 18836 Butte South side of North Honcut Creek, west of the steel power line, about 2 miles (air) northeast of Honcut, about 13 miles (air) southeast of Oroville. 37 Comment
  UCD137973  Alisma triviale J. Jones 1924-9-20 s.n. Butte Biggs Comment
  CAS-BOT-BC445431  Alisma triviale Lowell Ahart 1972-7-5 s.n. Butte Peter Ahart Ranch, Honcut. 150 Comment
  CDA14089  Allium amplectens G. F. Hrusa, T. D. Wilfred 1997-7-3 13974 Butte Sierra Nevada; NE side of upper end of Paradise Lake. Where last tributaries from E enter. Comment
  CHSC90049  Allium amplectens Laurie L. Gordon 1991-4-17 10 Butte 3 mi e of Hwy 99, ca. 250 ft s of Hwy 32. 54 Comment
  RSA304499  Allium amplectens Barbara Ertter, L. Ahart, Jeff Strachan 1980-5-6 3269 Butte Peter Ahart Ranch ca 2.5 mi NNE of Honcut between Oroville and Marysville 30 Comment
  CDA39428  Allium amplectens L. L. Heinricks 1974-5-2 s.n. Butte On both sides of Wilbur Road. 0 Comment
  POM110215  Allium amplectens C. C. Bruce 1897-03 1898 Butte [No locality information provided] Comment
  SEINET12053364  Allium amplectens Unknown 5 s.n. Butte Chico Comment
  CHSC28049  Allium jepsonii J. D. Jokerst 1978-6-22 151 Butte T22N, R4E, sect. 17. [no other locality information given] Comment
  RSA770517  Allium membranaceum S. Mashayekhi, M. Biabani 2010-6-11 SM 060 Butte North of Lake Oroville, 0.8 miles south of Bald Rock Road, with its junction with Oroville-Quincy Hwy at Brush Creek. East side of the dirt road. 1045 Comment
  CHSC9137  Allium peninsulare Terril Wolt 1970-4-23 30 Butte In upper Bidwell Park, at end of road, up N. side of canyon, Chico. 60 Comment
  CAS-BOT-BC132076  Allium peninsulare var. peninsulare Lowell Ahart 1989-5-10 6210 Butte Near a dirt road, about 1/10 mile north-west of the West Branch Bridge across Lake Oroville 304 Comment
  CHSC84890  Allium sanbornii var. sanbornii R. D. Fischer; Jenny Marr 2003-8-3 1 Butte Sierra Nevada foothills, Big Chico Creek Ecological Reserve. On the east side flood plain of Big Chico Creek at southern end of reserve, approx. 300 ft north of Bidwell Park boundary. 243 Comment
  CAS-BOT-BC475439  Allium serra S. P. Rixford 1918-5-1 s.n. Butte Chico Comment
  CAS-BOT-BC262  Allocarya austiniae R. M. Austin 1883-5-1 s.n. Butte unspecified Comment
  CHSC34996  Allophyllum divaricatum R. Schlising; R. Banchero 1981-6-16 4085 Butte N of Cohasset. 1097 Comment
  CHSC39975  Allophyllum divaricatum L. Ahart; P. Ahart 1983-7-29 4258 Butte Ca. 3 mi e of Milsap Bar, ca. 25 mi ne of Oroville. Along edge of dirt road. 1100 Comment
  CHSC48645  Allophyllum divaricatum Vernon Oswald 1986-7-22 2215 Butte Hwy 32, 1.2 mi n of Chico Creek near the spring. On the edge of the road. 1097 Comment
  CHSC65580  Allophyllum divaricatum L. P. Janeway 1995-6-19 4801 Butte About 0.5 mi east of the western end of Jackson Ranch Ridge; 0.5 mi south of Road 21N25Y. Top of slope overlooking Frey Creek. 1066 Comment
  CAS-BOT-BC138171  Alopecurus aequalis var. aequalis Vernon Oswald; Lowell Ahart 1987-7-1 3060 Butte Lily Pond located ca. 0.6 mile (air) west of Butte Creek House and 0.25 mile south of Humbug Road, ca. 2.75 mile (air) southeast of Jonesville. 1813 Comment
  SBBG119821  Alopecurus carolinianus L. Ahart 2005-4-14 11716 Butte Gridley, N of Spruce St, ca. 200 ft E of the railroad tracks 28 Comment
  UCD55880  Alopecurus carolinianus L. Ahart 1982-5-10 3430 Butte Peter Ahart Ranch, ca. 2 mi northeast of Honcut. 50 Comment
  SEINET10967771  Alopecurus carolinianus Lowell Ahart 1978-4-21 Ahart s.n. Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC46605  Alopecurus pratensis Vernon H. Oswald 1989-7-18 3867 Butte Meadow at Butte Creek House, ca. 3.3 mi (air) se of Jonesville. 1767 Comment
  RSA500432  Alopecurus pratensis Vernon H. Oswald 1989-7-18 3867 Butte Meadow at Butte Creek House, ca. 3.3. mi (air) se of Jonesville. 1768 Comment
  CHSC47604  Alopecurus saccatus Lowell Ahart 1980-5-4 2169 Butte South-west of the intersection of Nelson Ave. and 20th Street in Thermalito. 60 Comment
  CHSC6638  Amaranthus M. MacArthur 1968-6-16 337 Butte NW side of Aymer Jay Hamilton School, Chico State College campus. 60 Comment
  CDA38787  Amaranthus albus L. Ahart 2011-10-29 17720 Butte On the south side of Biggs Princeton Road, about 500 yards west of Riceton Highway, about 1 mile northwest of Biggs. Comment
  CHSC42113  Amaranthus albus Lowell Ahart 1986-11-7 5418 Butte In a prune orchard, east of the Feather River and the Oroville Gridley Highway, about 3 miles east of Gridley. 28 Comment
  JEPS103456  Amaranthus californicus Lowell Ahart 2002-10-17 9984 Butte On the hills below the high water line of Lake Oroville, ca 1 1/2 miles S of Highway 162 (Oroville Quincy Highway), ca 3 miles (air) NE of Oroville Dam. 227 Comment
  JEPS124258  Amaranthus californicus Lowell Ahart 2015-10-26 20589 Butte About 1 mile (air) southeast of Kunckle Reservoir, about 5 miles (air) southeast of Paradise. Comment
  CHSC36553  Amaranthus deflexus L. Ahart 1982-7-10 3666 Butte Graylodge Wildlife Refuge Area, ca. 12 mi sw of Gridley. Near a small building in the parking area at the checking station. 35 Comment
  UCD97418  Amaranthus deflexus L. Ahart 1982-7-10 3666 Butte Near a small building in parking lot at check-in station, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CHSC76263  Amaranthus rudis Lowell Ahart 1999-9-21 8266 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
  JEPS95988  Amaranthus rudis Lowell Ahart 1999-10-28 8316 Butte northwest of Parrott Landing; Chico, east side of the Sacramento River; 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-BC55583  Ambrosia psilostachya A. A. Heller 1914-8-11 11759 Butte Chico-Hamilton road, 6 miles from Chico Comment
  RSA0036435  Amorpha fruticosa Lowell A. Ahart 2012-5-12 18027 Butte On the north side of a deep drainage, north of the large meadow, northeast of the old homestead, about 300 yards southwest of Ten Mile House Road, about 1/2 mile (air) west of Highway 32, south part of Upper Bidwell Park, about 9 miles (air) northeast of, Chico. 268 Comment
  RSA0090972  Amsinckia A. A. Heller 1941-4-19 16069 Butte Crest of the hills west of Willows. Comment
  CHSC34233  Amsinckia intermedia M. S. Taylor 1981-4-14 3527 Butte Nw corner of the jct of Wheelock Rd and Hwy 70, ca. 5 mi n of Oroville. 137 Comment
  CHSC3615  Amsinckia intermedia R. Jaegel 1966-3-2 37 Butte 4 miles Northeast of Chico. On a south slope of a small drainage in Upper Bidwell Park. Comment
  CHSC38269  Amsinckia intermedia Vernon Oswald 1983-2-9 64 Butte Upper Bidwell Park, Chico, on the North Rim ca 0.8 mi e of the power line. 320 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
  JEPS107293  Amsinckia intermedia Lowell Ahart 2005-4-14 11700 Butte On the west bank of a deep ditch, east of the railroad tracks, north of Spruce Street, Gridley 28 Comment
  UCD119610  Amsinckia intermedia A. A. Heller 1918-4-19 12984 Butte Pine Creek, 12 miles N of Chico. Comment
  CHSC31550  Amsinckia menziesii L. Ahart 1980-5-12 2246 Butte On dredger piles along North Honcut Creek, ca. 1 mi n and 2.5 mi e of Honcut. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC116985  Anagallis arvensis Lowell Ahart 2016-6-4 20937 Butte On the west side of Ponderosa Way, about 1 mile (air) northwest of Sunset Hill, about 2 1/8 miles (air) northwest of Forbestown. 732 Comment
  UCD159566  Anaphalis margaritacea D. S. Park 2011-6-24 303 Butte Wetlands off Larkin Rd. 46 Comment
  CHSC38118  Andropogon virginicus var. virginicus R. L. Ondricek-Fallscheer 1982-10-30 163 Butte At sw tip of Flatiron Ridge, ca. 3 1/2 mi wsw of Paradise. 146 Comment
  CHSC72745  Andropogon virginicus var. virginicus Lowell Ahart 1998-11-11 8065 Butte About 3/4 mile northwest of the cattle chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 371 Comment
  CHSC45871  Anethum graveolens Lowell Ahart 1979-9-8 2020 Butte Garden, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC28501  Angelica breweri M. S. Taylor 1979-7-21 2154 Butte Scattered along trail below Humboldt Peak, on Humboldt Summit. 1981 Comment
  RSA715610  Anthriscus caucalis L. Ahart 2005-4-18 11729 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
  CHSC30713  Antirrhinum cornutum M. S. Taylor 1980-7-6 3050 Butte Ca. 1 mi e of Meridian Rd, ca 1.25 mi ne of its jct with Hwy 99, ca. 8 mi n of Chcio. 67 Comment
  CHSC62772  Antirrhinum vexillo-calyculatum subsp. intermedium J. Jurewicz 1993-7-13 479 Butte Ca 2.5 mi S of Big Bar Mtn, downslope from USFS Rd 22N84, ca 0.3 mi E of its jcn with Rd 23N28. 938 Comment
  JEPS87613  Antirrhinum vexillocalyculatum subsp. intermedium Lowell Ahart 1994-10-16 7564 Butte about 2 air mi n and 3.5 mi e Forbestown (about 0.75 mi sw of the Forbestown Reservoir Dam, along s side of dirt rd to the Forbestown Reservoir, near Woodleaf Creek); road to Forbestown Reservoir, near Woodleaf Creek 762 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
  CHSC94614  Apocynum cannabinum Lowell Ahart 2006-9-11 13272 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
  JEPS108968  Apocynum cannabinum Lowell Ahart 2006-9-11 13272 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
  POM75790  Apocynum cannabinum C. C. Bruce 1897-06 s.n. Butte Little Chico Comment
  CHSC46839  Aquilegia formosa var. truncata Kirsten Tarp 1982-7-18 214 Butte N part of county near Snow Mt. 2072 Comment
  CHSC90946  Arabidopsis thaliana Lowell Ahart 2005-4-18 11742 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
  JEPS124181  Arabidopsis thaliana Lowell Ahart 2015-2-26 19940 Butte About 1/4 mile north of Miners Ranch Reservoir, about 4 miles east of Oroville. Comment
  SEINET7258049  Arbutus menziesii M. J. Williams 1967-4-15 s.n. Butte Feather River Highway 671 Comment
  CHSC45038  Arceuthobium abietinum Lowell Ahart 1988-9-4 6174 Butte Host trees were on both sides of the dirt road, south of a branch of Last Chance Creek, about 1 1/2 air miles south-west of Bald Mountain. 1005 Comment
  CAS-BOT-BC407717  Arceuthobium abietinum Lowell Ahart 1988-9-4 6174 Butte S of a branch of Last Chance Creek, about 1.5 air miles SW of Bald Mountain 1005 Comment
  NY9763  Arctostaphylos A. A. Heller 1940-2-19 15500 Butte Neal Road 3 mi W of Paradise near the upper limit of the Upper Sonoran Life Zone Comment
  RSA629062  Arctostaphylos Jon E. Keeley 1983-6-27 7816 Butte Highway 70 and Magolia Pentz Road. Comment
  CAS-BOT-BC24436  Arctostaphylos manzanita J. D. Jokerst; L. Ahart; M. S. Taylor 1983-1-17 1685 Butte Top of North Table Mtn. at its nw. corner. Center of w. edge section 32. Comment
  CHSC67933  Arctostaphylos manzanita James D. Jokerst; M. S. Taylor, L. Ahart 1983-1-17 1684 Butte Top of N. Table Mtn. at its NW corner. Township/Range 'center W edge Sect. 32'. Comment
  RSA633001  Arctostaphylos manzanita Jon E. Keeley 1996-6-20 27460 Butte Approximately 1/2 km west of Cohasset. 570 Comment
  RSA633003  Arctostaphylos manzanita Jon E. Keeley 1996-6-20 27446 Butte East of Chico, Cohasset Road. 170 Comment
  UCD52158  Arctostaphylos manzanita John Thomas Howell 1975-6-15 51104 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
  UCD52246  Arctostaphylos manzanita John Thomas Howell 1976-4-2 51564 Butte In Upper Sonoran Life Zone on volcanic rock; about 2 miles from Paradise on 'Skyway' to Chico. 396 Comment
  CAS-BOT-BC38865  Arctostaphylos manzanita subsp. manzanita Frances Brown 1935-2-11 s.n. Butte Durham Comment
  JEPS119572  Arctostaphylos manzanita subsp. manzanita Lowell Ahart 2012-2-22 17736 Butte On the north side of Ten Mile House Road, about 1/2 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  RSA755635  Arctostaphylos manzanita subsp. manzanita L. Ahart, John Dittes, Steve Green 2009-1-17 15468 Butte North side of Humboldt Trail, about 50 yards south of Guardian Rock Trail, Upper Bidwell Park, about 300 yards west of Highway 32. 330 Comment
  UC1303076  Arctostaphylos manzanita subsp. manzanita A. A. Heller 1928-1-23 14474 Butte e Chico; Ten Mile House Comment
  RSA178607  Arctostaphylos mewukka A. A. Heller 1928-2-22 14776 Butte Near Forest Ranch Comment
  UC1303073  Arctostaphylos mewukka A. A. Heller 1928-2-22 14776 Butte near Forest Ranch Comment
  UC726237  Arctostaphylos mewukka A. A. Heller 1940-2-6 15489 Butte Neal Rd at Game Refuge above Bowle's Mansion; Paradise Comment
  UC726979  Arctostaphylos mewukka A. A. Heller 1942-1-4 16347 Butte Pentz-Magalia Rd 4 mi below Paradise Comment
  SEINET10973495  Arctostaphylos mewukka Lowell Ahart 1985-2-17 Ahart 4840 Butte On red rocky damp soil near Kunkle Res., About 2 miles south of Paradise. Comment
  SBBG125910  Arctostaphylos mewukka subsp. mewukka L. Ahart 2010-7-27 16913 Butte ca 100 yards SW of intersection of Forbestown Rd and Black Bart Rd, ca 11 mi E of Oroville 741 Comment
  CAS-BOT-BC38560  Arctostaphylos mewukka subsp. truei Wayne Roderick 1981-7-19 s.n. Butte 3 mi. NE of Magalia. Comment
  CAS-BOT-BC38567  Arctostaphylos mewukka subsp. truei Edward Pittman 1965-10-16 224 Butte Between Bryant Ravine and Feather Falls. 609 Comment
  CHSC32678  Arctostaphylos mewukka subsp. truei M. S. Taylor 1981-3-24 3441 Butte S side of Hwy 70 just E of Heinz Creek, ca. 1 mi E of Pulga. 487 Comment
  CHSC99887  Arctostaphylos nevadensis James I. Mallory 1969-10-2 362 Butte 1 mile east of Quartz Hill, 1 mile south of Fall River Campground in abandoned logging road. Just north of the center of the section. 1127 Comment
  RSA4477  Arctostaphylos nevadensis E. B. Copeland 1931-6-22 672 Butte Jonesville. On ridge east of the Summit' 2100 Comment
  POM219294  Arctostaphylos patula H. F. Copeland 1928-6-5 223 Butte Jonesville. 1524 Comment
  RSA0074194  Arctostaphylos truei Gladys L. Smith 1975-4-9 s.n. Butte Magalia. Comment
  CAS-BOT-BC47368  Arctostaphylos viscida subsp. viscida H. F. Copeland 1932-6-24 A 3 Butte Humboldt Grade, about 12 miles from Chico 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-BC47377  Arctostaphylos viscida subsp. viscida John Thomas Howell 1975-6-15 51102 Butte about 2 miles from Paradise on Skyway to Chico 396 Comment
  CAS-BOT-BC137554  Aristida oligantha Lowell Ahart 1983-8-16 4278 Butte Sierra Nevada. One mile east of Chico, on Highway 32. 100 Comment
  CDA31488  Aristida oligantha L. Ahart 2000-9-27 8692 Butte On the north side of Bean Creek Road, about 1/4 mile southeast of Little Bald Rock, about 1 1/4 miles (air) northeast of Big Bald Rock, about 4 miles (air) northeast of Madrone Lake, about 13 miles (air) northeast of Oroville. Comment
  CAS-BOT-BC146314  Aristida ternipes var. gentilis Lowell Ahart 1983-8-16 4277 Butte Sierra Nevada. One mile east of Chico, on Highway 32. 100 Comment
  CHSC108855  Aristolochia californica Lowell Ahart 2012-3-2 17767 Butte On the south side of Guardian trail, about 40 yards southwest of Pine trail, about 1/4 mile west of Highway 32, about 8 1/2 miles northeast of Chico. 361 Comment
  HSC86841  Aristolochia californica L. P. Branham 1975-4-3 6 Butte 10 m S of Humbug Rd., .2 mi. E of junction of Honey Run Rd. and Humbug Rd., 7 mi. SE of Chico 110 Comment
  UC143064  Aristolochia californica Dr. E. B. Copeland 1903-4-10 3044 Butte Chico Comment
  UC687398  Aristolochia californica unknown 1896-2 151 Butte Butte Creek Canyon Comment
  SEINET10475903  Aristolochia californica Mary Susan Taylor 1979-3-20 Taylor 1951 Butte T21N R4E nw1/4 sec. 21. Cherokee Quad. Along old road on N side of Hwy 70 following West Branch of the Feather River, which begins at S side of bridge over N fork of Feather River, ca. 10 mi N of Oroville; limestone outcrops within Foothill Woodland. 305 Comment
  SEINET10475904  Aristolochia californica Mary Susan Taylor 1981-3-24 Taylor 3442 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
  SEINET10937924  Aristolochia californica Mary Susan Taylor 1975-4-29 Taylor 543 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
  SEINET12088732  Aristolochia californica K. E. Warwick 1978-1 10 Butte 30 m. of Butte Creek at Covered Bridge, 10.2 km ESE of Chico Comment
  CHSC43188  Arnica dealbata Robert Banchero 1981-8-4 641 Butte Ca 1.7 mi n of Scotts-John Rd and Jonesville Rd jct. Meadow. 1828 Comment
  CHSC44894  Arnica discoidea Lowell Ahart 1988-7-31 6161 Butte About 1 air mile north and a little east of Bald Mountain, about 4 1/2 air miles north-east of Stirling City. 1524 Comment
  CHSC11849  Artemisia douglasiana E. B. Copeland 1930-7-27 484 Butte Jonesville. 1550 Comment
  CAS-BOT-BC93884  Artemisia dracunculus Lowell Ahart 1987-8-30 5861 Butte Along the North Fork of the Featehr River, near Poe Power House, about 2 miles southeast of Jarbo Gap. 271 Comment
  CHSC93176  Asclepias cordifolia L. P. Janeway 1994-6-6 4657 Butte Northern High Sierra Nevada. East end of Watson Ridge; along Road 21N25 about 0.5 mi north of Fall River and about 1.7 mi west of Kenebeck Ridge. Ridge top and road cutbank. 1158 Comment
  CHSC47067  Asclepias speciosa R. A. Schlising; P. Broyles 1988-7-9 4577 Butte E of Paradise and Magalia, and N of Oroville and Jarbo Gap; along Rim Road. 792 Comment
  JEPS98982  Asclepias speciosa Lowell Ahart 2001-6-1 8748 Butte South side of Biggs Princeton Road, about 1 mile east of Butte Creek, about 7 1/2 miles west of Biggs. 21 Comment
  CHSC6611  Asparagus officinalis M. MacArthur 1968-6-17 296 Butte SW yard of Building D on the Chico State College Campus. 60 Comment
  CHSC38245  Aspidotis californica Vernon Oswald 1982-7-23 32 Butte Bidwell Park, Chico, along Yahi Trail w of Brown's Hole. 182 Comment
  SEINET10529843  Aspidotis californica Mary Susan Taylor 1976-4-24 Taylor 1073 Butte Abundant on Big Bald Rock, ca. one quarter mi W of Bald Rock Rd, ca. 3 mi E of Lake Madrone, ca. 13 mi NE of Orovil le; with Quercus chrysolepis. 998 Comment
  SEINET10529844  Aspidotis californica Mary Susan Taylor 1976-3-6 Taylor 1008 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
  JEPS110230  Aspidotis densa Lowell Ahart 2006-7-16 12965 Butte Deep road cut, west of the open mudflow area, on the south side of Humboldt Road, about 1 1/2 miles (air) southwest of Butte Meadows 1435 Comment
  CHSC40304  Astragalus gambelianus Lowell Ahart 1985-3-22 4847 Butte About 1/2 mile north-east of the West Branch Bridge across Lake Oroville, 1/4 mile east of Highway 70, north of Oroville. 450 Comment
  CHSC40307  Astragalus gambelianus Ahart; Jokerst 1985-5-10 4962 Butte 1/2 mile south of Box Hall Flat, about 1 mile east of Potter Ravine, about 2 and 3/4 miles north-east of Oroville Dam. 320 Comment
  CHSC59315  Astragalus pauperculus J. L. Guardino 1992-3-23 1 Butte Paradise, 1/4 mi s of Circle Dr. terminus. 472 Comment
  HSC32694  Astragalus pauperculus David Johnson 1974-4-20 43 Butte Table Mtn. Comment
  CHSC65992  Astragalus tener var. ferrisiae Vernon H. Oswald 1996-5-9 7547 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Sacramento Valley. In the S paddock of Tract 7, Sanctuary II. 32 Comment
  CHSC80525  Astragalus tener var. ferrisiae Lowell Ahart 2001-4-15 8721 Butte About 15 feet southeast of the large pump, on the south side of Evans-Reimer Road, about 1 mile east of Pennington Road, Gray Lodge Waterfowl Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  CHSC30780  Asyneuma prenanthoides M. S. Taylor 1980-9-12 3336 Butte W side of Hwy 32, ca. 3 mi n of Forest Ranch, near Forest Ranch Fire Control Station, ca. 5 minute walk w of the Hwy on a dirt road. 975 Comment
  UC1609396  Athyrium distentifolium var. americanum Lowell Ahart 1993-9-8 7160 Butte ca. 1 mi e Snow Mt (n side of ridge) 2072 Comment
  CHSC36556  Atriplex argentea var. mohavensis L. Ahart 1982-7-10 3662 Butte In parking area of checking station, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  JEPS90672  Atriplex cordulata Vernon H. Oswald 1993-7-29 5734 Butte w of Gridley (Gray Lodge Wildlife Management Area, w side of levee road and on s side of Rutherford Road, just e of headquarters complex, 1.75 mi w of Pennington Road); Gray Lodge Wildlife Management Area 19 Comment
  CAS-BOT-BC172670  Atriplex lentiformis Lowell Ahart 1981-11-6 3217 Butte Gray Lodge, south-west of Gridley 35 Comment
  CAS-BOT-BC172671  Atriplex lentiformis Lowell Ahart 1981-9-10 3144 Butte Gray Lodge, SW of Gridley 35 Comment
  CHSC61036  Atriplex subtilis Vernon H. Oswald 1993-7-29 5730 Butte Gray Lodge Wildlife Management Area W of Gridley, W side of levee road ca. 100 ft S of Parking Lot 5 on Rutherford Rd., 0.5 mi W of Pennington Rd. 21 Comment
  UC1490564  Atriplex triangularis Lowell Ahart 1981-11-6 3221 Butte about 12 mi sw Gridley (just w of Pennington Road, n side of road near the entrance to the Gray Lodge Waterfowl Management Headquarters); Gray Lodge Waterfowl Management, sw of Gridley 35 Comment
  CHSC42851  Avena barbata Lowell Ahart 1987-5-6 5548 Butte At the Poe Power House along the North Fork of the Feather River, about 2 miles south-east of Jarbo Gap. 283 Comment
  CHSC4394  Avena barbata R. L. Smith 1966-5-15 Butte Paradise, 5 mi sw of Post Office. Comment
  CHSC4350  Avena fatua M. Hillier 1966-5-29 Butte Parallel to Manzanita Ave. Chico. Comment
  JEPS117709  Avena fatua Lowell Ahart 2010-5-7 16629 Butte On both sides of Guardian Trail, about 1/2 mile west of Highway 32, Upper Bidwell Park, about 4 1/2 miles (air) northeast of Chico 246 Comment
  JEPS94141  Avena fatua Lowell Ahart 1998-6-9 7985 Butte ca. 7 mi. (air) n. Oroville (on e. side of Cherokee Rd., across the rd. from the cow chute, North Table Mt.); North Table Mt. 403 Comment
  RSA713001  Avena fatua L. Ahart 2005-12-11 12515 Butte Rice Experiment Station, between the Main Ditch and Stine lateral, on the north side of Hamilton Road, about 1/4 mile east of Riceton Highway, about 2 1/4 miles (air) east of Biggs. 30 Comment
  CAS-BOT-BC66235  Azolla filiculoides Lowell Ahart 1981-9-27 3214 Butte North-east of Palermo 80 Comment
  CHSC46165  Azolla filiculoides Lowell Ahart 1981-9-27 3214 Butte About 1/8 mile north-east of the intersection of Lower Wyandotte Road and Upper Palermo Road, about 4 miles north-east of Palermo. 73 Comment
  CHSC46038  Azolla microphylla Lowell Ahart 1975-1-9 697 Butte On the west side of North Honcut Creek, about 2 1/2 miles north and 3 miles east of Honcut, from Honcut go east to Dunstone Drive and stop when you get to the 'S' curve, then go west about 1/4 mile to North Honcut Creek. 60 Comment
  CHSC43270  Baccharis douglasii Lowell Ahart 1987-8-30 5871 Butte Near Highway 70, about 1/4 mile south of Clark Road (191), about 1/2 mile northeast of Oroville Chico Highway (149). 91 Comment
  SD122583  Baccharis salicifolia Lowell Ahart 1984-10-14 4814 Butte North Honcut Creek, ca. 3/4 miles north and 2 miles east of Honcut, on Joie Osgood property. 39 Comment
  CAS-BOT-BC16376  Barbarea orthoceras Lowell Ahart 1987-5-6 5508 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles southeast of Jarbo Gap. 271 Comment
  SD48506  Barbarea verna E. K. Balls 1957-5-22 22517 Butte Southwest shore, Lake Almanor, just beyond Big Meadows Dam. 1399 Comment
  CHSC111129  Berberis Lowell Ahart 2012-6-21 18200 Butte Lawn, on the south side of the paved park road, weest of the entrance from Woodland Avenue, Lower Bidwell Park, Chico. 62 Comment
  CHSC47974  Berberis aquifolium var. dictyota Vernon Oswald 1987-4-14 2326 Butte Garland Rd. 0.6 mi e of Doe Mill Rd. (ene of Forest Ranch). 807 Comment
  CAS-BOT-BC75546  Berberis dictyota A. A. Heller 1917-3-18 12669 Butte Chico creek lower end of Iron Canon [Canyon]. Comment
  JEPS104017  Bergia texana Lowell Ahart 2002-12-6 10021 Butte On the bottom of a deep wash, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles SE of Oroville. Comment
  CDA15321  Bergia texana D. Joley, B. Villegas 1998-9-24 s.n. Butte Sierra Nevada; below Lake Oroville in Oroville Wildlife Area. 0 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
  HSC97042  Bidens frondosa L. Ahart 2006-9-11 13274 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
  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
  CAS-BOT-BC102074  Bidens frondosa Lowell Ahart 1976-6-27 s.n. Butte Near Honcut 150 Comment
  NY31004  Blennosperma californicum Mrs. C. C. Bruce 05 1898 2074 Butte Comment
  HSC68163  Blennosperma nanum var. nanum J. P. Smith, J. O. Sawyer 1973-4-14 6051 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  JEPS104354  Boechera breweri subsp. shastaensis Lowell Ahart 2003-4-10 10063 Butte On basalt cliffs, on the e rim of South Table Mountain, ca 2 1/2 mi (air) n of Oroville. 332 Comment
  SEINET10453124  Boisduvalia densiflora Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4149 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
  SEINET10453125  Boisduvalia densiflora Lowell Ahart 1985-6-17 Ahart 5058 Butte Lumpkin Ridge, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. Comment
  RSA166345  Boisduvalia glabella D. M. Moore 1960-6-2 99 Butte U.S. 99E 1.2 mi. S of Butte - Tehama county line Comment
  UC1751227  Botrychium minganense Timothy B. Devine 1986-8-2 880 .2 Butte 1 mi NE of Jonesville (edge of Jones Creek at jct with Humboldt Road) 1615 Comment
Read comments
Aug 21 2008
  CAS-BOT-BC145683  Brachypodium distachyon Lowell Ahart 1987-5-9 5604 Butte Along the road near the bridge across the North Fork of the Feather River, near the Poe Power House, about 2 miles southeast of Jarbo Gap. 304 Comment
  CHSC38059  Brassica oleracea var. gemmifera R. E. Preston 1982-3-25 198 Butte In a garden in Chico. Comment
  CHSC4029  Brassica rapa Sadie Gualtieri 1967-3-13 Butte Collected: Chico State College in a field parking lot behind Humanities Building on corner 2nd. St., N. side. Comment
  CHSC45204  Briza maxima Lowell Ahart 1975-5-12 772 Butte Along the edge of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CAS-BOT-BC145537  Briza minor Lowell Ahart 1980-5-17 2279 Butte 0.5 mile southeast of Hurleton. 600 Comment
  CHSC52148  Briza minor Donald M. Burk 1978-4-18 118 Butte 100 ft s of intersection of Broyles Road and Hwy 99, ca. 11 mi n of Chico. 59 Comment
  SEINET10507330  Briza minor Mary Susan Taylor 1978-4-14 Taylor 1555 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
  SEINET10899500  Brodiaea californica Mrs. R. M. Austin Austin 45 Butte Iron Canyon Comment
  CAS-BOT-BC482208  Brodiaea californica subsp. californica Peter H. Raven 1953-5-9 5421 Butte Dry fields 7 mi. s.e. of Chico on Oroville Road Comment
  POM215689  Brodiaea californica var. californica David D. Keck 1933-5-30 2410 Butte 1 mile W of Richardson Springs. Comment
  UCD77155  Brodiaea minor Robert E. Preston 2002-6-7 1812 Butte Paradise, along Honey Run Rd, ca. 0.6 mi s of its jct with The Skyway. 433 Comment
  CAS-BOT-BC484504  Brodiaea minor A. A. Heller 1914-4-24 11321 Butte Hills 8 miles north of Oroville Comment
  CHSC81329  Brodiaea nana J. Trizzino 2001-4-25 56 Butte Oro-Chico Highway, 0.5 mi east of Mesa Drive, south side of road. 53 Comment
  CAS-BOT-BC484574  Brodiaea purdyi Mrs. J. H. Morrison 1932-6-5 s.n. Butte Durham Comment
  NY990638  Brodiaea sierrae R. Preston 2004-6-19 2261 Butte 1.3 mi. W of Hurleton, along Forbestown Rd. 434 Comment
  CDA1783  Bromus alopecuros L. Ahart 2002-5-15 9662 Butte About 1/4 mile east of Highway 70, about 12 miles southwest of Oroville. On the south side of Central House Road, about 80 yards east of the bridge across Whyman Ravine. Comment
  CHSC38793  Bromus carinatus Vernon Oswald 1983-5-11 471 Butte Upper Bidwell Park, Chico, at the Police Pistol Range on the s edge of the Golf Course. 97 Comment
  JEPS115955  Bromus carinatus var. carinatus Lowell Ahart 2009-4-26 15615 Butte East edge of a small open meadow, about 150 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles norhteast of Chico 286 Comment
  CHSC100497  Bromus catharticus Lowell Ahart; John Dittes 2008-11-14 15455 Butte On the south side of the gravel road, about 50 yards east of Cedar Grove Parking Area in Lower Bidwell Park, Chico. 67 Comment
  CHSC2128  Bromus catharticus H. Silberman; D. Isaac 1949-5-9 Butte W. side football field, CSU campus. Comment
  CHSC82266  Bromus catharticus Lowell Ahart 2002-4-15 9493 Butte On a canal bank, on the west side of Faris Road, 3 miles west of West Biggs Gridley Road, about 3 miles (air) southwest of Biggs. 24 Comment
  CHSC94291  Bromus ciliatus Lowell Ahart 2006-7-16 12975 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
  CHSC84277  Bromus commutatus Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2003-5-27 10222 Butte About 100 yards west of the dirt road, west of Diversion Dam on Big Chico Creek, west of Parking Area L, Upper Bidwell Park, about 3 1/2 miles east of Manzanita Avenue, Chico. 121 Comment
  UCD58519  Bromus diandrus A. A. Beetle 1941-6-27 2743 Butte 2 miles north of Lone Pine Forest Guard Station on Rt. 32. Comment
  CHSC38796  Bromus hordeaceus Vernon Oswald 1983-4-10 321 Butte Upper Bidwell Park, Chico, on the n side of the canyon at Salmon Hole. 188 Comment
  SEINET10835844  Bromus hordeaceus P. Young 1972-5-16 Moyer 186 Butte S bank Chico Crk. between Warner St. and New Dorm Bridge. 61 Comment
  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
  CHSC101463  Bromus laevipes L. P. Janeway; Sarah Starkey 2009-7-13 9856 Butte Northern High Sierra Nevada. Upper end of Rocky Ridge, southwest side of Rim Road (Ponderosa Way) 0.3 km southeast of Concow Road near the quarry. 978 Comment
  SEINET10507836  Bromus laevipes Lowell Ahart 1985-5-15 Ahart 4987 Butte East of the dirt road, about 1 1/2 miles north-east of Concow Reservoir. north-east of Oroville. Comment
  CHSC47607  Bromus madritensis subsp. madritensis Lowell Ahart 1972-4-18 85 Butte In a pasture field, Peter Ahart Ranch, about 1 1/2 miles north and 2 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC6671  Bromus madritensis subsp. rubens Marilyn Lee 1968-3-15 110 Butte East side of Cohasset Rd., 100 yards N. of entrance to Chico Airport. Comment
  CHSC67409  Bromus madritensis subsp. rubens James D. Jokerst; R. A. Schlising 1985-4-8 2219 Butte Serpentine Point W of and adjacent to Hwy. 70 ca. 0.5 mi S of Lunt Rd. Near summit near edge of outcrop. 548 Comment
  RSA591529  Bromus orcuttianus H. F. Copeland 1930-7-21 1348 Butte Jonesville. 1524 Comment
  CAS-BOT-BC161612  Bromus sterilis Lowell Ahart 1977-6-16 1474 Butte Peter Ahart Ranch, Honcut. North Honcut Creek. 50 Comment
  CDA13291  Bromus suksdorfii G. F. Hrusa, T. D. Wilfred 1996-7-9 13139 Butte Plumas National Forest; Occasional individuals on dry, shaded slopes in coniferous understory above Jordan Creek S of Hwy 162 near Roger's Cow Camp. Comment
  CHSC11979  Bromus vulgaris E. B. Copeland 1929-7-22 336 Butte Jonesville. 1500 Comment
  JEPS122141  Bulbostylis capillaris Lowell Ahart 2014-5-2 19426 Butte About one mile (air) northwest of the improved Parking Area and Cherokee Road, North Table Mountain, about 8 miles (air) north of Oroville. Comment
  RSA774131  Calamagrostis canadensis L. Ahart 2010-9-21 17222 Butte About 10 yards east of poor dirt road, about 200 yards west of Big Kimshew Creek, about 1.5 air miles NE of Jones Meadow, about 2.5 air miles SE of Philbrook Reservoir 1918 Comment
  CHSC68913  Calamagrostis canadensis var. langsdorffii Lowell Ahart 1997-7-11 7757 Butte Near the west edge of a bog, east of the dirt road, about 1/4 mile (air) east of Bald Mountain, about 4 miles (air) northeast of Stirling City. 1676 Comment
  CAS-BOT-BC438358  Calandrinia ciliata Lowell Ahart 1979-5-11 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  CHSC103959  Calandrinia ciliata Lowell Ahart 2010-5-14 16659 A Butte Area of erosion control, Disc Golf Area, about 100 yards west of the entrance to the Disc Golf Area, about 120 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 372 Comment
  CHSC46457  Calandrinia ciliata V. Oswald; L. Ahart 1989-6-27 3835 Butte Humbug Rd at Butte Creek House, ca. 3.3 mi (air) se of Jonesville. In a large meadow along Butte Creek. 1767 Comment
  CHSC98948  Calandrinia ciliata Lowell Ahart 2008-5-8 14719 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
  CHSC25150  Calandrinia ciliata var. menziesii Willis Ball 1970-2-24 71 Butte Growing along road in Upper Bidwell Park Ca. 2 miles N. E. of Bidwell Golf Course building. 121 Comment
  CHSC44421  Calandrinia ciliata var. menziesii Lowell Ahart 1988-5-29 6011 Butte On the bottom of a small mined wash, about 1/10 mile north-east of the old barn, about 1/2 mile north-east of the Honcut Cemetery, Joie Osgood Ranch, about 3 1/2 miles east and 1 1/2 miles north of Honcut. 60 Comment
  CAS-BOT-BC80357  Calocedrus decurrens Lowell Ahart 1987-8-8 5854 Butte near North Honcut Creek, about 2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville 67 Comment
  CHSC21263  Calochortus albus M. S. Taylor 1973-5-6 16 Butte Ca. 1 mi n of Oroville Dam Afterbay,on Cherokee Rd. 121 Comment
  CHSC2839  Calochortus albus David Prall 1965-4-25 25 Butte On roadside bank of north side of Humbug Rd. 0.3 miles west of junction with Honeyrun Rd. (covered bridge). 152 Comment
  UC429160  Calochortus albus Mrs. R. M. Austin 1890-1 30 Butte Butte Creek Comment
  CAS-BOT-BC487512  Calochortus albus A. A. Heller 1914-5-8 11375 Butte Plateau above Clear Creek on the Paradise road Comment
  RSA4215  Calochortus leichtlinii E. B. Copeland 1929-7-17 352 Butte Above Jonesville. 2000 Comment
  POM215697  Calochortus luteus D. D. Keck 1933-5-31 2416 Butte 5 miles east of Oroville on road to Bangor. Comment
  SEINET10469593  Calochortus luteus Mary Susan Taylor 1974-3-5 Taylor 74 Butte Along Cohasset Road, N of Chico. Assoc iates: Amsinckia intermedia, Dodecatheon clevelandii var. patulum, Blennospermum nanum, Orthocarpus erianthus. Comment
  CHSC24782  Calochortus monophyllus D. E. Hale 1976-4-10 15 Butte On n side of Vilas Rd, ca. 25 m e of Vilas Rd - Cohasset Hwy intersection, 24 km ne of Chico. 800 Comment
  CHSC57549  Calochortus monophyllus Suzanne Hermansen 1991-4-20 25 Butte ca. 1 mi s of jct of Pearson Rd. and Edgewood Ln. Paradise. 1/4 mi w of Dry Creek. 505 Comment
  CHSC90028  Calochortus monophyllus Peggy Fain 1991-4-21 22 Butte Ca. 3 km. E. of Richardson Springs Hotel (N. side Walker Creek, Musty Buck Preserve). 243 Comment
  UCSB63613  Calochortus monophyllus Romano, Marci 1986-4-6 Butte 12.5 mi NE of Chico on Hwy 32 548 Comment
  CHSC25014  Calochortus nudus E. B. Copeland 1929-7-21 353 Butte Jonesville. 1550 Comment
  UCD80424  Calochortus superbus CNPS SN Foothill Team 2005-5-4 SNFN 0201 b Butte City of Chico, Upper Bidwell Park, on the west side of Big Chico Creek, ~1 mile from the end of Upper Park Road, and about 110 m upslope of the road. 273 Comment
  POM169644  Calochortus superbus Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  CHSC9275  Calochortus tolmiei D. C. Burns 1971-4-4 121 Butte Growing on n side of highway 70, ca. 15 yds up a steep bank, ca. 20 mi n of Oroville on highway 70, (30yds. E of Jarbo Gap Cafe). 710 Comment
  CHSC98583  Calochortus tolmiei L. P. Janeway; B. Castro 2007-5-6 8968 Butte Northern High Sierra Nevada. Ridge top along a side road north of the road from Sawmill Peak to Flea Valley, 1.8 air km northeast of Sawmill Peak. 969 Comment
  UC843673  Calochortus tolmiei A. A. Heller 1938-4-23 15055 Butte about 20 mi from Oroville (along the Feather River Highway near the Yankee Hill road) Comment
  SEINET10469608  Calochortus tolmiei Lowell Ahart 1985-5-15 Ahart 5000 Butte 1/8 mile east of the dirt road, about 1 1/2 miles north-east of Concow of Reservoir. Comment
  CAS-BOT-BC496524  Calochortus venustus H. C. Cantelow 1940-5-10 s.n. Butte 10 miles east of Oroville, Bidwell Bar Bridge Comment
  CHSC25402  Calycadenia ciliosa M. P. Hayes 1977-9-11 56 Butte Exactly 3.5 mi E of the Hwy 99 overpass on Hwy 32 in Chico, ca 3-10 m S of the road. 137 Comment
  CHSC48132  Calycadenia ciliosa Vernon H. Oswald 1983-6-9 661 Butte Upper Bidwell Park, Chico, beside Upper Park Rd. at Devil's Kitchen (2.1 mi E of the power lines). 219 Comment
  CHSC51252  Calycadenia ciliosa Lowell Ahart; Mary Sue Taylor 1990-8-28 6595 Butte On the south side of Highway 32, about 3 miles east of Chico. 182 Comment
  RSA493212  Calycadenia hispida Gerald D. Carr 1981-9-26 1161 Butte About 3 miles northeast of Honcut, on the Lowell Ahart Ranch Comment
  UC1971669  Calycadenia multiglandulosa 1977-7-6 2036 Butte 2.1 mi SE of the Quincy-Oroville/Olive Hwy (162), on Forbestown Road (at milepost 59.35, C. oppositifolia (RLC2037) ca. 200 yds E 427 Comment
  UCD129711  Calycadenia multiglandulosa L. Ahart 1981-9-26 3208 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CAS-BOT-BC106083  Calycadenia oppositifolia John Thomas Howell 1955-6-14 30454 Butte Magalia 731 Comment
  CHSC37503  Calycadenia oppositifolia J. D. Jokerst; L. Ahart, M. S. Taylor 1983-1-17 1678 Butte Table Mountain. Ca. 150 meters due north of Phantom Falls (W edge of mesa, N branch of Coal Cr. Canyon). 381 Comment
  JEPS117929  Calycadenia oppositifolia John Dittes, Lowell Ahart, Steve Green, Josephine Guardino 2003-5-27 2003 -32 Butte Upper Bidwell Park road west of Parking Lot-R (approximately 6.7 air-miles northeast of Chico, 2.3 air-miles northeast of Horseshoe Lake; on cut road bank and slope on north side of main); Cascade Range Foothills 228 Comment
  JEPS104278  Calycadenia spicata Lowell Ahart 2003-6-20 10296 Butte In pasture fields, Peter Ahart Ranch, ca 2 mi n and 1 3/8 mi e of Honcut, ca 12 mi se of Oroville. 42 Comment
  UCD23262  Calycadenia spicata W. R. Powell 1968-5-17 1509 Butte 4 miles NNW of Rackerby along new Oro-Feather Falls Road. 548 Comment
  SBBG7840  Calycadenia truncata D. D. Keck, J. Clausen 1935-6-25 3778 Butte 2.2 mi S of Flea Valley on rd to Yankee Hill Comment
  UC1126248  Calycanthus occidentalis J. E. Sowder 1933-8-4 129 Butte above de Sable Power House; Chico Quad. 609 Comment
  HSC96804  Calystegia atriplicifolia subsp. buttensis L. Ahart 2006-6-24 12858 Butte W side of Ponderosa Way going NW on Cohasset Ridge about 3.75 mi. NE of Cohasset 1128 Comment
  UC600771  Calystegia malacophylla subsp. malacophylla H. F. Copeland 1920-7-6 339 Butte Jonesville woods Jonesville Comment
  SEINET267151  Calystegia occidentalis subsp. fulcrata T. A. Ranker, P. G. Trapp 1994-6-17 1614 Butte Pence Road south of Paradise. 395 Comment
  CHSC116496  Camassia quamash subsp. breviflora Lowell Ahart; Susan Kephart, Jim Kephart 2015-6-4 20195 Butte Day Meadow, about 100 yards south of the poor dirt road, about 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. 829 Comment
  CHSC64246  Camassia quamash subsp. quamash S. C. Morey 1983-8-3 699 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  CDA34160  Capsella bursa-pastoris L. Ahart 2009-4-3 15526 Butte Chico: East of the Cedar grove Parking Area in Lower Bidwell Park. Comment
  UC600711  Cardamine breweri H. F. Copeland 1929-6-9 1251 Butte Jonesville 1524 Comment
  CHSC101089  Cardamine oligosperma Lowell Ahart; John Dittes 2009-3-20 15505 Butte Open area along the Guardian Rock Trail, about 150 yards southwest of the Ten Mile House Road Trail, about 300 yards west of Highway 32, west of the intersection of Highway 32 and Ten Mile House Road, Upper Bidwell Park, about 10 miles northeast of Chico. 407 Comment
  CHSC99310  Cardamine oligosperma Lowell Ahart 2008-5-21 14786 Butte Below the high water line of Lake Oroville, on the south side of the South Fork of the Feather River, where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 246 Comment
  UC203628  Cardamine oligosperma A. A. Heller 1914-3-12 11196 Butte Canyon of Big Chico Creek Canyon Big Chico Creek 68 Comment
  SEINET10448560  Cardamine oligosperma Mary Susan Taylor 1981-4-5 Taylor 3498 Butte T21N R4E ne sec 14; Berry Creek quad. At end of Dark Canyon Rd at turnout near restroom, ca. 3.5 mi s of Big Bend Rds, ca. 5 air mi s of Jarbo Gap on Hwy 70, n of Oroville. Foothill Woodland; 1000 ft. 305 Comment
  CHSC32646  Cardamine pachystigma M. S. Taylor; L. Hanson 1981-3-16 3415 Butte E side of Ponderosa Way, ca. 300 yds n of its jct with Hwy 70 at Jarbo Gap Fire Station. 731 Comment
  CHSC104817  Carduus pycnocephalus Lowell Ahart 2010-6-1 16749 Butte Along Centennial Avenue, about 100 yards east of Chico Canyon Road, on the south side of Big Chico Creek, Upper Bidwell Park, Chico. 71 Comment
  JEPS117517  Carduus pycnocephalus subsp. pycnocephalus Lowell Ahart 2010-6-1 16749 Butte Along Centennial Avenue, about 100 yards east of Chico Canyon Road, on the south side of Big Chico Creek, Upper Bidwell Park, Chico 71 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
  JEPS118073  Carex Lowell Ahart 2011-8-19 17635 Butte On the south side of a good forest road, on the east side of Know-northing Creek, in low area on the north side of Lumpkin Ridge Road, about 1/2 mile southwest of the intersection of Lumpkin Ridge Road, County Road and road to Cascade, about 5 miles (air) northeast of Feather Falls 1252 Comment
  CHSC94002  Carex amplifolia R. D. Fischer 2004-6-20 782 Butte Sierra Nevada Mountains, north-east corner of Butte County and ca. 4 miles north of Butte Meadows off Scout Road. Boy Scout Camp. In drainage ditch at north end of camp where Scout Road passes through Chico Meadows. 1371 Comment
  CHSC53712  Carex angustata L. P. Janeway; C. A. Janeway 1986-8-31 1814 Butte Near the Picnic Area on the NE side of Philbrook Reservoir. Grassy meadow a little away from the lake. 1691 Comment
  CHSC88224  Carex angustata Lowell Ahart 2004-8-2 11327 Butte Small bog in a large meadow, about 200 yards east of Keyser Creek, on the north side of the dirt County Road, about 3/4 mile (air) northeast of Oak Point, about 1/2 mile (air) west of Big Kimshew Creek, about 1 3/4 miles southeast of Bald Mountain. 1452 Comment
  SEINET7550020 Image available Carex aquatilis L. P. Janeway, Gavin Blosser, John Hunt 2003-4-22 7764 Butte Oroville Dam quad. Northern Sierra Nevada Foothills. Just below high water line of Lake Oroville on south side of Bloomer Point Campground (west side of the lake); 4.7 km southwest of Bloomer Hill. 271 Comment
  CAS-BOT-BC18053  Carex athrostachya E. B. Copeland 1928-7-28 607 Butte Jonesville. 1700 Comment
  CHSC11936  Carex aurea E. B. Copeland 1930-6-23 608 Butte Jonesville. 1500 Comment
  CHSC43914  Carex barbarae L. P. Janeway 1986-9-20 1882 Butte West side of Comanche Cr and north side of Ord Ferry Rd. 33 Comment
  SEINET10586772  Carex bolanderi Lowell Ahart 2010-6-12 Ahart 16796 Butte T22N, R2E, northwest 1/4 Section 35. About 150 yards east of Ten Mile House Road, about 3.4 mile (air) west of Highway 32, about 9 miles (air) northeast of Chico. 238 Comment
  CAS-BOT-BC19414  Carex bolanderi L. P. Janeway 1987-6-20 2258 Butte North Fork Feather River at crossing of road from Lumpkin Ridge to Mooreville Ridge. 975 Comment
  CHSC48541  Carex brainerdii L. P. Janeway 1987-5-28 2116 Butte Bank along 4 Trees Rd just N of Coyote Gap. 1310 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
  SEINET7556722 Image available Carex densa Unknown 2003-4-22 7760 Butte Oroville Quad. Northern Sierra Nevada Foothills. 274 m west of Lake Oroville and Bloomer Cove Campground, 5.3 km southwest of Bloomer Hill. 302 Comment
  CHSC111380  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. 63 Comment
  CAS-BOT-BC19995  Carex feta Lowell Ahart 1980-7-4 2464 Butte Along Forbestown Road. 750 Comment
  CHSC107579  Carex feta Lowell Ahart 2011-8-23 17649 Butte In the large meadow, Pinkard Creek flows through the meadow east of the corral, about 1 miles north of Lost Creek Reservoir Dam, about 4 miles (air) northeast of Clipper Mills. 1133 Comment
  CHSC37065  Carex fracta L. Ahart 1982-9-29 3837 Butte On banks of Pinkard Creek, ca. 1.5 mi n of Lost Creek Reservoir Dam, ca. 3.5 mi nw of Strawberry Valley. 1200 Comment
  CHSC44292  Carex fracta Vernon Oswald 1988-6-20 3408 Butte East of Humboldt Rd. 1.4 mi ne of Lomo. Along the edge of the W. Branch of Butte Creek at the bottom of a ravine. 1292 Comment
  SEINET7468094 Image available Carex fracta Ray Tallent 1987-8-18 953 Butte Lassen National Forest; Along Jones Creek, NE of Jonesville 1720 Comment
  CAS-BOT-BC21239  Carex fracta L. P. Janeway 1988-6-25 2862 Butte The Carices of Butte County. Near Coon Creek and near Bull Hill Road 1.0 mile from Skyway. 1554 Comment
  JEPS116088  Carex gracilior Lowell Ahart 2009-5-15 15710 Butte 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
  CHSC110238  Carex hirtissima L. P. Janeway 2012-6-2 10831 Butte Northern High Sierra Nevada. Plumas National Forest; eastern slope of Bloomer Hill, 1.0 air km east of the top. 701 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
  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
  CAS-BOT-BC7558  Carex integra H. F. Copeland 1946-7-4 s.n. Butte Jonesville. Comment
  CHSC113469  Carex integra Lowell Ahart 2014-7-10 19617 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1664 Comment
  CHSC45049  Carex integra Vernon Oswald 1987-5-28 2941 Butte Concow Rd. at Rag Dump. Grassy flat near Fall Creek. 1170 Comment
  CHSC52868  Carex integra L. P. Janeway 1988-6-19 2836 Butte 3.1 mi N of Stirling City towards Inskip; along logging road 0.2 mi W of Skyway. 1219 Comment
  JEPS117658  Carex integra Lowell Ahart 2010-9-21 17218 Butte Open meadow like area, near a poor camp, 30 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir 1917 Comment
  UCD140469  Carex inversa Peter F. Zika 2010-5-16 24825 Butte Safford Street near Third Avenue, Oroville, Janeway's Station, Sacramento Valley. 50 Comment
  RSA725282  Carex jonesii L. Ahart 2006-8-15 13175 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
  CHSC113421  Carex laeviculmis Lowell Ahart 2014-7-2 19537 Butte On the south side of the County Road, about one mile west of the intersection of County Road and Lumpkin Road, about 7 miles northeast of Feather Falls. 1260 Comment
  CHSC45258  Carex laeviculmis L. P. Janeway 1988-6-16 2808 Butte Along Butte Cr 1.4 mi S of Humboldt Rd via the rd in the W side of the cyn. 1264 Comment
  CHSC47134  Carex laeviculmis L. P. Janeway 1988-6-25 2870 Butte Near Coon Cr and near Bull Hill Rd (Skyway) 1.0 mi from Skyway (jct with Humbug Summit Rd). 1554 Comment
  CAS-BOT-BC31121  Carex lemmonii Herbert Faulkner Copeland 1930-7-25 1362 Butte Jonesville. Meadow below the cabin. 1524 Comment
  CHSC61510  Carex lemmonii Lowell Ahart 1993-6-26 7007 Butte Small meadow, on the south side of the dirt road, about 1/4 mile west of the Lost Creek Reservoir. 1036 Comment
  UCD140476  Carex lemmonii L. P. Janeway 1987-5-28 2109 Butte along side road (23N12Y) of Four Trees Road, 1.6 miles west of its junction with OroQuincy hwy. 1463 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
  SEINET7568447 Image available Carex multicaulis L. P. Janeway 2005-5-29 8409 Butte Kimshew Point 7.5' quad. Northern High Sierra Nevada. Top of south end of Granite Ridge (between Rock Creek and Camp Creek), about 2.3 km south of Kimshew Point. On southeast-facing side of ridge top. 1317 Comment
  SEINET10817224  Carex multicaulis Lowell Ahart 1987-5-9 Ahart 5594 Butte Along Pulga Road, about 0.5 mile SW of Bardees Bar along the North Fork of the Feather River about 3 miles SW of Pulga. 366 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
  SEINET10916378  Carex nudata A. Arthur Heller 1913-6-7 Heller 10818 Butte West branch of the North Fork of the Feather river near Stirling. 914 Comment
  SEINET4231788  Carex pachystachya L. Janeway, Gog, L 2008-1 3190 C Butte Near Cornelia Lott Sank Memorial Spring. Comment
  CHSC51429  Carex pendula L. P. Janeway 1989-12-1 3653 Butte Along Comanche Creek (Edgar Slough) behind the office of USFS Tree Improvement Center. 68 Comment
  SEINET7571067 Image available Carex pendula L. P. Janeway 2004-6-20 8137 Butte Chico 7.5' quad, Sacramento Valley. South end of Chico, along edge of Comanche Creek at the bicycle bridge (former railroad bridge) about 150 m southeast (upstream) of the Midway (road) bridge across the creek. 59 Comment
  CHSC44950  Carex praegracilis L. P. Janeway 1988-7-2 2943 Butte Marsh/mdw at upper reach of Brush Creek, ca 1.5 mi S of 'town' of Brush Creek. 952 Comment
  CHSC47137  Carex praegracilis L. P. Janeway; Vern H. Oswald 1989-4-17 3221 Butte Along E side of Butte Cr 2.4 mi S of Biggs-Princton Rd (Afton Rd). 18 Comment
  SEINET7572224 Image available Carex praegracilis Lowell Ahart 2004-4-4 10728 Butte On the north side of Richvale Highway, about 1/2 mile east of Richvale. 32 Comment
  CAS-BOT-BC118351  Carex praegracilis L. P. Janeway 1987-5-7 2021 Butte Drier part of marsh on NE side of Hwy 149, 1/2 mi NW of Hwy 70. Shippee quad. 74 Comment
  CHSC49852  Carex specifica L. P. Janeway 1986-9-1 1833 Butte Northeast-facing slope above Philbrook Reservoir. 1798 Comment
  CHSC44106  Carex stipata var. stipata L. P. Janeway 1987-6-8 2163 Butte Along French Cr across from mouth of Ram Cr. 617 Comment
  SEINET8574039 Image available Carex subfusca L. Janeway, Castro, B 2009-1 9836 Butte Comment
  NY11376  Carex teneriformis H. M. Hall 1914-7-25 9781 Butte Jonesville, Northern Butte Co. 1554.5 Comment
  CHSC45065  Carex utriculata Vernon Oswald 1983-7-6 833 Butte Near Humboldt Rd. 3.4 mi n-e of Butte Meadows. 1432 Comment
  CHSC84905  Carex utriculata L. P. Janeway 2003-7-13 7903 Butte High Cascade Range. Meadow along southeast side of Humbug Summit Road, at the Cornelia Lott Sank Memorial Spring. 1519 Comment
  JEPS114822  Carex vulpinoidea Lowell Ahart 2008-6-2 14805 Butte Below the high water line of Lake Oroville, on the north side of the South Fork of the Feather River, about 50 yards east of where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam 243 Comment
  SEINET10785808  Carex xerophila John Thomas Howell, Gordon H. True 1969-4-9 Howell 45490 Butte Magalia. 701 Comment
  CHSC115441  Carpenteria californica M. Sutton 2013-4-7 37 Butte Kristina's house. Corner of 3rd and Oleander. 61 Comment
  CHSC40888  Castilleja affinis Ahart; Jokerst 1985-5-10 4947 Butte Along the east branch of Potter Ravine, about 2 1/4 miles north of Oroville Dam. 320 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
  CHSC46408  Castilleja affinis Lowell Ahart 1989-5-10 6222 Butte Near Lake Oroville, about 1/10 mile north-west of the West Branch Bridge across Lake Oroville. 289 Comment
  CHSC50060  Castilleja affinis Lowell Ahart 1990-3-28 6430 Butte On the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 39 Comment
  CHSC103964  Castilleja affinis subsp. affinis Lowell Ahart 2010-5-7 16630 Butte On the south side of Guardian Trail, about 1/4 mile west of Highway 32, Upper Bidwell Park, about 4 3/4 miles (air) northeast of Chico. 277 Comment
  CAS-BOT-BC249584  Castilleja applegatei subsp. pinetorum Lowell Ahart 1983-6-30 4177 Butte About 1 1/2 miles north-east of Concow Res. 550 Comment
  CAS-BOT-BC249589  Castilleja applegatei subsp. pinetorum Clarence R. Quick 1964-7-9 64 -58 Butte North of Jarbo Gap Comment
  CHSC48972  Castilleja applegatei subsp. pinetorum Vernon Oswald 1984-5-23 1207 Butte Pulga Rd, 0.5 mi n of Calif. Hwy 70. 487 Comment
  JEPS115589  Castilleja applegatei subsp. pinetorum Lowell Ahart 2009-4-22 15594 Butte West side of Guardians Trail, about 100 yards north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  JEPS80628  Castilleja applegatei subsp. pinetorum M. S. Taylor 1981-7-19 3957 Butte ca 0.25 mi <?> nw end of Pulga Bridge (along Pulga Rd, n side of Feather River Highway, ca 20 mi ne of Oroville); Pulga Quad. 487 Comment
  JEPS81458  Castilleja applegatei subsp. pinetorum M. S. Taylor 1978-7-18 1701 Butte Humboldt Summit, on top of HUmboldt Peakon Butte-Tehama County line Humboldt Peak 2158 Comment
  SD4822  Castilleja applegatei subsp. pinetorum E. B. Copeland 1930-7-12 Butte Jonesville 1750 Comment
  UC196055  Castilleja applegatei subsp. pinetorum A. A. Heller 1914-7-23 11646 Butte edge of forest about Chico Meadows 1219 Comment
  CAS-BOT-BC255457  Castilleja applegatei var. pinetorum Lowell Ahart 1988-5-1 5978 Butte Along the North Fork of the Feather River a little north of the Poe Power House, about 2 miles south-east of Jarbo Gap 920 Comment
  CHSC30884  Castilleja attenuata J. D. Jokerst 1979-4-6 1179 Butte Top of North Table Mt, ca 200 m north of Cherokee Rd where it intersects the east edge of the mountain. 396 Comment
  CHSC39943  Castilleja campestris subsp. campestris Lowell Ahart 1984-4-25 4585 Butte Peter Ahart Ranch, ca. 2.5 mi NE of Honcut, ca. 12 mi S of Oroville. 50 Comment
  CHSC49012  Castilleja campestris subsp. campestris Vernon Oswald 1985-4-11 1705 Butte Hwy 99 0.4 mi n of Hamilton Rd. Comment
  UC719292  Castilleja exserta F. G. Meyer 1938-4-4 1344 Butte 6 mi e Orland Comment
  CHSC83908  Castilleja exserta subsp. exserta Lowell Ahart 2003-4-10 10086 Butte On the west side of a wash, near the south rim of South Table Mountain, about 2 miles (air) north of Oroville. 302 Comment
  UC454128  Castilleja miniata Miss Kate Conger 1907-1 Butte Brush Creek Comment
  CHSC47977  Catalpa speciosa Vernon Oswald 1987-5-18 2912 Butte Rancho Bosquejo. East side of the Sacramento River at the w end of Cana Hwy (Feenstra's Riverview Orchard). 48 Comment
  CAS-BOT-BC48546  Ceanothus cordulatus A. A. Heller 1914-7-24 11623 Butte Sierra Nevada at Butte Meadows, on th banks of Butte Creek 1219 Comment
  CHSC26673  Ceanothus cordulatus M. S. Taylor; M. Hayes, R. Schlising 1977-8-17 1490 Butte On e side of Scotts John Rd, ca. 1.4 mi s of its jct with Old Humboldt Rd, near Jonesville. 1981 Comment
  CAS-BOT-BC48813  Ceanothus cuneatus A. A. Heller; H. E. Brown 1902-5-7 5488 Butte Berry Canyon (near Clear Creek) Comment
  JEPS115256  Ceanothus cuneatus var. cuneatus Lowell Ahart, Josephine Guardino, Steve Green 2009-2-20 15486 Butte On a ridge about 300 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 354 Comment
  RSA755786  Ceanothus cuneatus var. cuneatus Dylan O. Burge 2007-3-27 DOB 815 c Butte Butte Creek watershed, below Doe Mill Ridge, on slope above Butte Creek, accessed via north-trending foot trail from 13411 Bean Flat Road, 1 road mile from Centerville Road on Bean Flat Road, 15.1 kilometers 74 degrees true ENE of Chico. 243 Comment
  CHSC3277  Ceanothus integerrimus M. L. Hillier 1966-5-9 Butte In small open field along rd. side 6.8 miles n.e. of the Skyway on Humbug rd. Comment
  CHSC82524  Ceanothus integerrimus Tara Morgan 2002-5-2 2 Butte Found off of Highway 32 within the Chico Creek Watershed on the slope northeast of Upper Bidwell Park boundary. Directly off of the paved road that goes in from highway 32 accessible by foot. 528 Comment
  CHSC84646  Ceanothus integerrimus Matt Quinn 2001-4-29 48 Butte In foothill of Butte County, collected near Butte Creek, approximately 1/4 mile downstream of Steel Bridge on Centerville Road. 167 Comment
  RSA399895  Ceanothus integerrimus M. M. Boney 1897-1 s.n. Butte [No location data on label] Comment
  SEINET5543271  Ceanothus integerrimus var. macrothyrsus H. S. Gentry, S. Koch 1962-1 19762 Butte Cohasset. 914 Comment
  POM136438  Ceanothus integerrimus var. puberulus A. A. Heller, H. E. Brown 1902-5-7 5481 Butte Berry Canyon (Near Clear Creek). Comment
  RSA25681  Ceanothus jepsonii Carl B. Wolf 1941-7-23 11048 Butte Northern Sierra Nevada, 5 miles below Magalia on Oroville road. 610 Comment
Read comments
May 17 2021
  CHSC28138  Ceanothus lemmonii J. D. Jokerst 1979-5-7 220 Butte Top of Cohasset Ridge (Tuscan Lava). 200 m. sw of Cohasset Hwy. 463 Comment
  CHSC29245  Ceanothus lemmonii M. S. Taylor 1980-5-8 2593 Butte Ca. 3 mi n of Forest Ranch, ca. 1 mi e of Hwy 32. 853 Comment
  CAS-BOT-BC52011  Ceanothus prostratus John Thomas Howell 1978-4-18 52849 Butte De Sabla 853 Comment
  UC2026879  Celtis australis Lowell Ahart, Susan Bazell, Josephine Guardino, Wes Dempsey 2012-7-5 18264 Butte Cedar Grove, parking area, Lower Bidwell Park, Chico. Comment
  CDA43060  Celtis sinensis L. P. Janeway, B. Castro 2010-6-4 9991 Butte Sacramento Valley.; Lower Bidwell Park, Chico; south side of Big Chico Creek, between South Park Drive and the creek, 400 m south of junction of South Park Drive and Centennial Ave. Comment
  JEPS113265  Centaurea cyanus Lowell Ahart 2007-5-16 13893 Butte Between the road to Bear Ranch Creek and Highway 70, north of Bear Ranch Creek, about 1/4 mile southeast of the Shady Rest Area south of the Arch Rock Tunnel 463 Comment
  JEPS87515 Image available Centaurea jacea Lowell Ahart 1993-8-8 7154 Butte w side of La Porte Road about 2 mi sw Clipper Mills 1066 Comment
  CDA7276  Centaurea melitensis L. Ahart 2000-5-31 8414 Butte About 200 yards east of where Kunkle Creek enters Lake Oroville, east of the Kunkle Power House, about 3 miles southeast of Paradise. Comment
  CHSC114165  Centaurea solstitialis Barbara L. Wilson; Lowell Ahart, Lawrence Janeway, Peter F. Zika 2011-8-5 16791 Butte At junction of Forbestown Road and Oroville Highway (Highway 162). 372 Comment
  CAS-BOT-BC284503  Centaurea solstitialis A. A. Heller 1914-8-13 11679 Butte About Chico as well as in many fields in this part of the Sacramento Valley Comment
  UC1562423  Centaurium muehlenbergii Lowell Ahart 1990-6-16 6511 Butte on the e side Forbestown Reservoir (at the Forbestown Generator, on the e side of the dirt road) 487 Comment
  CHSC105269  Centaurium tenuiflorum Lowell Ahart 2010-6-20 16828 Butte About 1/4 mile north of Cox Lane, about 1 1/2 miles east of Palermo Honcut Highway, Guidci Ranch, about 7 1/2 miles (air) southeast of Oroville. 59 Comment
  CHSC111142  Centaurium tenuiflorum Lowell Ahart 2012-6-21 18212 Butte On the south side of Big Chico Creek, about 300 yards east of the dam at Sycamore Pool, Lower Bidwell Park, Chico. 62 Comment
  CHSC28481  Centaurium tenuiflorum Robert Schlising 1979-8-17 3468 Butte 1/4 mi s jct Hwys 162 to Oroville and 99; along the latter and across from Thermalito Afterbay; widespread at ditch margins but not in grassland. Comment
  JEPS93821  Centaurium venustum Lowell Ahart 1998-7-1 8021 Butte about 7 air mi n of Oroville (nw of the Ione oak tree, about 1/8 mi nw of the cow chute on the w side of Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 403 Comment
  CAS-BOT-BC271506  Centromadia parryi subsp. rudis M. S. Taylor; L. Ahart 1982-5-28 4345 Butte Gray Lodge Waterfowl Management Area, N side of Ruthrford Road, ca. 1/8 mi W of its jct with Pennington Road at the checking station, ca. 12 miles southwest of Gridley 21 Comment
  JEPS108776  Cerastium fontanum subsp. vulgare Lowell Ahart 2006-7-16 12983 Butte In the west edge of a large wet meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
  CAS-BOT-BC388259  Cerastium glomeratum A. A. Heller 1914-3-7 11187 Butte Hills 8 miles north of Oroville Comment
  JEPS115830  Cercis occidentalis Lowell Ahart 2009-4-26 15620 Butte On the east side of a small open meadow, about 150 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 286 Comment
  SD116545  Cercis occidentalis Barbara Ertter, Jeffrey Strachan and Lowell Ahart 1980-5-8 3318 Butte North Honcut Creek on Peter Ahart Ranch, 2.5 miles northeast of Honcut between Marysville and Oroville. 46 Comment
  UC15107  Cercis occidentalis unknown 380 Butte Chico Comment
  SEINET12164080  Cercis occidentalis J. M. Thayer 1984-1 1 Butte SW of Covered Bridge betw Honey Run Rd. and Butte Creek. Chaparral 107 Comment
  CHSC34226  Chamaebatia foliolosa M. S. Taylor 1981-5-7 3630 Butte N side of Ponderosa Way, 0.5 mi n of Sucker Creek bridge, ca. 4 air mi sw of Feather Falls. 365 Comment
  CDA34263  Chamaesyce maculata L. Ahart 2010-6-25 16838 Butte In the parking area of Bidwell Mansion, Chico. Comment
  CHSC102983  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
  JEPS115356  Chamaesyce maculata Lowell Ahart 2009-7-3 15987 Butte On the east side of the road, 30 yards southeast of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 100 yards east of Cedar Grove, Lower Bidwell Park, Chico 67 Comment
  CHSC29718  Chamaesyce ocellata J. D. Jokerst; T. B. Devine, D. Greemstein 1979-9-13 430 Butte Top of North Table Mt, 100 m north of jct of east edge of Mt and Cherokee Rd. Comment
  UC869161  Chamaesyce ocellata A. A. Heller 1916-9-5 12645 Butte 8 mi n Oroville (in hills) Comment
  JEPS115728  Chamaesyce ocellata subsp. ocellata Lowell Ahart 2009-8-15 16284 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville 33 Comment
  UC1303129  Chamaesyce ocellata subsp. ocellata A. A. Heller 1927-9-5 14469 Butte ca 3 mi e Chico Comment
  UC177569  Chamaesyce ocellata subsp. ocellata H. M. Hall July 1914 9759 Butte e Chico 91 Comment
  CHSC113532  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2014-9-23 19877 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
  CHSC97716  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2007-10-31 14523 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
  UC600557  Chamerion angustifolium subsp. circumvagum H. F. Copeland 1928-8-14 443 Butte on ridge above Jones Creek; Jonesville 1828 Comment
  SEINET10529872  Cheilanthes cooperae Mary Susan Taylor 1979-3-20 Taylor 1956 Butte T21N R4E nw1/4 sec. 21. Cherokee Quad. Along old road on N side of Hwy 70 following West Branch of the Feather River, which begins at S side of bridge over N fork of Feather River, ca. 10 mi N of Oroville; limestone outcrops within Foothill Woodland. 305 Comment
  CAS-BOT-BC69448  Cheilanthes gracillima E. B. Copeland 1929-7-13 327 Butte Jonesville. 1700 Comment
  CHSC44088  Cheilanthes gracillima L. P. Janeway 1987-7-5 2465 Butte Along the road to High Lakes, 5.2 mi from the Skyway (Philbrook Rd.). 1844 Comment
  UC474227  Cheilanthes gracillima H. F. Copeland 1920-5-22 Butte Jonesville Comment
  CHSC39501  Cheilanthes intertexta Lowell Ahart 1983-5-28 4042 Butte About 1/4 mile south of the over-lood to Feather Falls, about 5 1/4 miles north of the town of Feather Falls. 600 Comment
  CHSC113101  Chenopodium album Lowell Ahart 2013-11-18 19277 Butte Below the high water line of Lake Oroville, about 200 yards northeast of the boat ramp at the end of Stringtown Road, on the north side of the road, about 2 1/2 miles (air) northeast of Hurleton. 261 Comment
  SEINET10479005  Chenopodium album Lowell Ahart 1990-9-30 Ahart 6609 Butte On the south side of the East Fork of Canyon Creek, below the high water line of Lake Oroville, about 1/8 mile north-west of the Canyon Creek Bridge across Lake Oroville. Foothill Woodland (destroyed). T20N R5E SW/S16. 244 Comment
  CDA42948  Chenopodium strictum var. glaucophyllum L. Ahart 2012-10-28 18528 Butte About 50 yards east of the freeway, northwest of Table 2, Lower Bidwell Park, Chico. Comment
  CDA1901  Chloris virgata L. Ahart 2004-6-29 11147 Butte On the E side of Lone Tree Road, about 1/2 mi. N of Palermo Road, about 1 1/2 mi. (air) NW of Palermo, about 5 mi. (air) south of Oroville. Comment
  UC1562426  Chorizanthe membranacea Lowell Ahart 1990-5-25 6479 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 271 Comment
  RSA505436  Chrysothamnus parryi subsp. latior R. C. Bacigalupi 1957-7-26 6039 Butte Along road berm on the Humbug Road, 2.2 miles SW of Nimshaw, at eastern canyonside of Butte Creek 579 Comment
  UCD72994  Cicendia quadrangularis Ayzik Solomeshch 2003-4-9 s.n. Butte Wurlitzer Reserve, about 10 mi. north from Chico on Hwy 99, west side of the road. Comment
  CHSC37410  Cirsium arvense R. A. Schlising; J. D. Jokerst 1982-9-7 4390 Butte N part of county, n of Philbrook Reservoir, in Coon Hollow. Roadside. 1706 Comment
  CAS-BOT-BC278077  Cirsium douglasii var. breweri E. B. Copeland 1930-7-28 s.n. Butte Jonesville 1600 Comment
  SFV11411  Cirsium occidentale var. californicum M. L. Vincent 1963-6-11 425 Butte Roadside on Pentz Road. 5 miles south of Paradise. Comment
  CHSC39049  Cirsium occidentale var. candidissimum Lowell Ahart 1983-7-29 4242 Butte About 1 mi e of Milsap Bar, about 25 mi ne of Oroville. 750 Comment
  CAS-BOT-BC285723  Cirsium vulgare Lowell Ahart 1981-8-15 3038 Butte Snag Lake (about 3 miles south of Jonesville) 1524 Comment
  CHSC24775  Clarkia arcuata L. J. Gut 1976-4-23 20 Butte Ca. 100 yds s of Butte Creek, ca. 6.2 mi ese of Chico. 121 Comment
  CHSC61161  Clarkia arcuata Vernon H. Oswald 1993-5-18 5398 Butte Middle Butte Creek Trail on the W side of the creek and on the upstream side of Ponderosa Way, ca. 2.25 mi (air) NW of Magalia. 707 Comment
  CAS-BOT-BC164135  Clarkia concinna L. P. Janeway 1993-6-16 4390 Butte Upper east-facing slopes of North Fork Feather River Canyon; along Hwy 70 1.3 mi northeast of Jarbo Gap 670 Comment
  CHSC35134  Clarkia concinna subsp. concinna R. Schlising; R. Banchero 1980-6-6 3647 Butte N of Lake Oroville along Hwy 162, 1.7 mi N of Bidwell Bar Bridge crossing of the lake; roadside bank. 304 Comment
  JEPS105640  Clarkia concinna subsp. concinna L. P. Janeway, John Hunt, Adam Henderson 2003-6-3 7804 Butte Northern High Sierra Nevada. Southeast side of Middle Fork Feather River arm of Lake Oroville, 1.4 km southwest of mouth of Bean Creek 283 Comment
  CAS-BOT-BC164517  Clarkia gracilis subsp. albicaulis Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  CHSC35137  Clarkia gracilis subsp. albicaulis R. Schlising; R. Banchero 1980-6-24 3779 Butte N of Oroville, 0.7 mile NW of Hwy 70 along Lunt Road (= 0.2 mile from junction with Nelson Bar Road). Comment
  CHSC39038  Clarkia gracilis subsp. albicaulis Lowell Ahart 1983-6-26 4159 Butte About 17 miles ne of Oroville, along Bean Creek Road, about 5 miles s of Little Bald Rock. 600 Comment
  POM39336  Clarkia gracilis subsp. albicaulis C. C. Bruce 1898-05 s.n. Butte Little Chico Comment
  RSA699539  Clarkia gracilis subsp. albicaulis R. D. Fischer 2004-4-17 170 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located on edge of 10 Mile House Road at roads closest point to Big Chico Creek. 216 Comment
  CAS-BOT-BC171883  Clarkia gracilis subsp. gracilis Lowell Ahart 1979-4-28 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC171885  Clarkia gracilis subsp. gracilis Lowell Ahart 1983-6-26 4142 Butte Along Ponderosa Way, just a little south of the East Fork of Canyon Creek, 14 miles north-east of Oroville, Note: the sign gives Big Ridge Road instead of Ponderosa Way. 500 Comment
  CHSC44636  Clarkia mildrediae subsp. lutescens Lowell Ahart 1988-6-29 6102 Butte Along Bean Creek Road, about 3/4 mile south-east of Little Bald Rock. 944 Comment
  JEPS103352  Clarkia mildrediae subsp. lutescens Lowell Ahart 2002-6-21 9731 Butte On road cut bank, Watson Ridge, ca 2 miles (air) NE of Bald Rock Dome, ca 5 miles (air) N of Feather Falls (the town). 1086 Comment
  CAS-BOT-BC163357  Clarkia mosquinii L. P. Janeway 1994-6-24 4673 Butte West side of Chino Ridge; along Rd 28 6.0 mi northwest of Rd 34, just before Last Chance Creek 786 Comment
  CHSC64111  Clarkia mosquinii L. P. Janeway 1994-7-7 4685 Butte Along Rd 23N60 0.9 mi east of Oroville-Quincy Hwy; south end of ridge above Little North Fork between Marble Creek and Spoon Ravine. 1127 Comment
  RSA646257  Clarkia mosquinii subsp. xerophila T. Mosquin 1959-7-2 3336 Butte 0.2 mile west of Enterprise, along highway Comment
  SEINET10453160  Clarkia purpurea Mary Susan Taylor 1976-4-27 Taylor 1082 Butte Abundant in Valley Grassland, ca. 50 ft E of Cohasset Hwy, ca. 3 mi N of Chico. 61 Comment
  POM37804  Clarkia purpurea subsp. purpurea C. C. Bruce 57 Butte Chico Comment
  RSA122147  Clarkia purpurea subsp. purpurea F. W. Embree 1934-4-24 43 Butte 4.5 miles north and 1.5 mile east of Bigg 38 Comment
  CAS-BOT-BC163647  Clarkia purpurea subsp. quadrivulnera A. A. Heller 1914-5-22 11422 Butte Near Richardson Springs Comment
  CHSC10819  Clarkia purpurea subsp. quadrivulnera Lowell Ahart 1968-5-8 Butte Peter Ahart Ranch, Honcut. 45 Comment
  RSA31284  Clarkia purpurea subsp. quadrivulnera H. C. Cantelow 1940-5-10 s.n. Butte 8.5 miles SW of Oroville, Highway 24 Comment
  CAS-BOT-BC164792  Clarkia rhomboidea L. P. Janeway; Perrie Cobb 1993-6-1 4364 Butte Southeast side of canyon of North Fork Feather River; along dirt road from Cresta Rest Area to the Bear Ranch Creek falls 487 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
  CHSC70747  Clarkia rhomboidea L. P. Janeway 1993-6-16 4389 Butte Upper slopes, east-facing, in North Fork Feather River; along Hwy 70 1.1-1.3 mi northeast of Jarbo Gap. 670 Comment
  CHSC70760  Clarkia rhomboidea L. P. Janeway 1995-7-16 4859 Butte 0.8 mi northwest of Oak Point; 0.8 mi east of Transfer Ridge; east side of Breakneck Canyon 1.5 mi north of West Branch Feather River. 1402 Comment
  CHSC111318  Clarkia rhomboidea Samantha Mackey Hillaire 2008-5-22 1256 B Butte Plumas National Forest. Roadcuts under powerlines. 731 Comment
  UCD104992  Clarkia rhomboidea L. P. Janeway 1995-7-16 4859 Butte 0.8 mile NW of Oak Point. 0.8 mile E of Transfer Ridge, E side of Breakneck Canyon. 1.5 miles N of West Branch Feather River. 1402 Comment
  CHSC10620  Clarkia unguiculata Lowell Ahart 1967-6-6 Butte Near Bidwell Bar. 182 Comment
  CHSC46135  Clarkia unguiculata Lowell Ahart 1980-5-13 2266 Butte Along Pacific Heights Road, about 1 mile west of Highway 70, about 2 1/2 miles south-west of Oroville. 33 Comment
  CHSC95189  Claytonia palustris R. D. Fischer 2005-6-5 825 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
  SEINET10572706  Claytonia parviflora Mary Susan Taylor 1981-5-15 Taylor 3745 Butte T22N R5E se sec 2, Pulga SW quad. W side of rd 23N00.1, ca. 3/4 mi S of Coyote Gap, ca.4 air mi E of Pulga on Feather River Hwy 70. Creek crossing road; shaded; 3800 ft. 1158 Comment
  CHSC46725  Claytonia parviflora subsp. parviflora Lowell Ahart 1978-4-19 1653 Butte Along the trail to Feather Falls, north of Frey Creek, about 3 miles north of Feather Falls. 548 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
  CAS-BOT-BC439433  Claytonia parviflora subsp. parviflora Junea Kelley 1920-4-24 s.n. Butte Los Vergils [Verjeles] Comment
  UC852042  Claytonia rubra subsp. rubra A. A. Heller 1915-6-25 12020 Butte Chico Meadows; Sierra Nevada 1219 Comment
  CAS-BOT-BC91351  Clematis lasiantha Jeanne McFarland; Kathie Meyer; Anne Mullenniex 1995-4-9 48 Butte About 5 miles south of Paradise on Pentz Road, at intersection with Kuncle Reservoir Road. Comment
  CHSC35974  Clintonia uniflora M. S. Taylor 1982-6-24 4745 Butte Rag Dump 5, ca. 2 mi n of Flea Mt, ca. 10 mi n of Jarbo Gap on Hwy 70. 1158 Comment
  SEINET194862  Cogswellia marginata A. A. Heller 1941-4-16 16065 Butte Along US highway 99E 4 miles north of Biggs. Comment
  SEINET12319539  Collinsia grandiflora Unknown 1973-1 14 Butte ca 5 mi NE of Oroville, on top of Table Mt., 20 yds off E side of Old Cherokee Rd Comment
  CHSC114647  Collinsia greenei Vivian Paarker 1993-6-16 17 -21 Butte Yolla Bolly Ranger District. Serpentine ridge above and north of Snake Lake, north of FS road 28N10. 1260 Comment
  CHSC11076  Collinsia heterophylla Lowell Ahart 1961-5-4 Butte Along Humbug Road, Chico. 152 Comment
  POM219368  Collinsia parviflora H. F. Copeland 1931-6-10 1521 Butte Jonesville. Gulch draining into Colby Canyon. 1524 Comment
  CHSC31823  Collinsia sparsiflora L. Ahart 1979-4-28 1851 Butte Peter Ahart Ranch, Honcut. Along banks of North Honcut Creek. 50 Comment
  CHSC3970  Collinsia sparsiflora J. Senter 1967-4-3 3 Butte 100 yds. S.E. slope near covered bridge on Humbug Rd. 76 Comment
  CHSC42016  Collinsia sparsiflora var. collina Lowell Ahart 1974-4-15 416 Butte Along Swedes Flat Road, about 1 mile east of the Bangor Oroville Highway, north of Bangor. 304 Comment
  UC725864  Collinsia sparsiflora var. collina A. A. Heller 1942-4-26 Butte halfway from Cherokee to Oregon City road Cherokee; Table Mountain Comment
  POM43045A  Collinsia sparsiflora var. collina C. C. Bruce 1897-03 2062 Butte [No location information provided.] Comment
  CHSC102172  Collinsia tinctoria Lowell Ahart 2009-5-30 15785 Butte On dry soil, around large rocks, north of a broad open drainage in oak woodland, about 100 yards north of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) west of Highway 32, about 10 miles northeast of Chico. 269 Comment
  POM21003  Collinsia tinctoria Helen M. Edwards 1917-6-6 s.n. Butte De Sabla. Comment
  UC175549  Collinsia tinctoria A. A. Heller 1913-5-28 10768 Butte Table Mountain 8 mi n of Oroville 182 Comment
  CHSC48985  Collinsia torreyi var. wrightii Vernon Oswald 1984-7-2 1338 Butte Humbug Summit. 2320 Comment
  CHSC34993  Collomia heterophylla R. Schlising; R. Banchero 1980-6-6 3650 Butte N of Lake Oroville on Bald Rock Road, 0.8 mi S of jct with Oroville-Quincy Highway at Brush Creek. 1024 Comment
  CHSC52102  Collomia tinctoria L. P. Janeway 1988-6-16 2803 Butte Above the SE-facing rock outcrop above Butte Cr and above the rd in W side of the cyn, 3.0 mi S of Humboldt Rd. 1310 Comment
  CHSC69048  Collomia tinctoria Lowell Ahart 1997-8-1 7799 Butte Along the edge of the dirt road and north of the camps along Little Kimshew Creek, about 1/4 mile north of the County Road, east of Bald Mountain, about 8 miles (air) northeast of Stirling City. 1219 Comment
  UC600657  Collomia tinctoria H. F. Copeland 1937-9-4 954 Butte Jonesville Comment
  CAS-BOT-BC180251  Comandra umbellata subsp. californica A. A. Heller 1915-4-20 11845 Butte 3 miles above Centerville in the Sierra foothills Comment
  CHSC1952  Conium maculatum A. Goekler 1929-5-21 Butte Chico. 57 Comment
  CHSC115432  Convolvulus arvensis Ariana Gehrig 2013-5-7 Butte City of Chico. Along pathway, near campus. 64 Comment
  CHSC40475  Conyza floribunda Lowell Ahart 1985-1-27 4836 Butte Along the road at Kunkle Res., about 2 miles south of Paradise. 550 Comment
  CDA13289  Corallorhiza maculata G. F. Hrusa, T. D. Wilfred 1996-7-9 13137 Butte Plumas National Forest; E of Jordan Creek near headwaters, S of Hwy 162 near Roger's Cow Camp. Comment
  SEINET10470000  Corallorhiza maculata Mary Susan Taylor 1981-5-27 Taylor 3804 Butte T23N R3E ne sec 13, Paradise SE quad. W side of Paradise Lake, ca. half way between Butte Creek entrance to the north and dam to the sough, ca. 50 ft up from lake edge, ca. 3 air mi N of Magalia. Dense Yellow Pine F; 2600 ft. 792 Comment
  CHSC2335  Corallorhiza striata J. Chew 1954-5-30 Butte Road between Rag Dump and Flea Valley. 1097 Comment
  SEINET12331907  Cordylanthus pilosus subsp. bolanderi Unknown 1985-1 5153 Butte along Forbestown Ditch, about 2.5 mi NE of Forbestown 869 Comment
  JEPS23868  Cordylanthus tenuis subsp. viscidus Rimo Bacigalupi with Howard Whisler 1957-7-26 6045 Butte Butte Meadows 1371 Comment
  CDA5367  Coriandrum sativum L. Ahart 2001-5-1 8742 Butte On the sides of the dirt road east of the large pump, on the south side of Evans-Reimer Road, about 1 mile east of Pennington Road, Gray Lodge Waterfowl Management Area, about 4 miles (air) southwest of Gridley. Comment
  SEINET12137282  Cornus nuttallii T. R. Norton 1977-1 11 Butte ca 6.5 NE of Paradise, 1.5 mi N of Magalia, 0.5 mi N of Magalia Reservoir, 0.25 mi E of the Skyway Comment
  SEINET12137515  Cornus nuttallii Unknown 1979-1 14 Butte N rim of Magalia Reservoir, ca 300 yds E of intersection between Dogtown Rd & Skyway 914 Comment
  UC426924  Cornus sericea subsp. sericea E. B. Copeland 1930-6-23 431 Butte Jonesville 1500 Comment
  CHSC62106  Cornus sessilis B. Castro; R. A. Schlising, L. P. Janeway 1987-4-4 53 Butte Ca 4 air mi N of Magalia on the far E end of Paradise Lake, at edge of unnamed creek which feeds into this arm of the lake. 792 Comment
  CHSC75492  Cornus sessilis G. F. Hrusa; T. D. Wilfred 1997-5-7 13734 Butte Sierra Nevada. Little Butte Creek above Magalia Reservoir, N of Magalia, immed. E of Holmwood Drive. [Lat./Long. on label is '39 51 N, 121 34 W']. 710 Comment
  RSA104167  Cornus sessilis Mrs. R. M. Austin 1883-06 s.n. Butte Not noted Comment
  JEPS106093  Coronilla varia Lowell Ahart 2004-6-22 11121 Butte On the west side of Doe Mill Road, about 1 mile southeast of the bridge across Butte Creek, about 2 1/2 miles (air) southeast of Forest Ranch, about 5 miles (air) southwest of Stirling City 713 Comment
  JEPS106219  Coronilla varia Lowell Ahart 2004-6-22 11121 Butte On the west side of Doe Mill Road, about 1 mile southeast of the bridge across Butte Creek, about 2 1/2 miles (air) southeast of Forest Ranch, about 5 miles (air) southwest of Stirling City 713 Comment
  JEPS108800  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
  UC1562396  Coronopus didymus Lowell Ahart 1990-5-28 6501 Butte about 2 1/2 mi n.e. East Gridley (along edges of Palm Avenue, about 1/12 mi. e. of Larkin Road) 30 Comment
  SD1899  Corydalis caseana E. B. Copeland 1929-7-3 Butte Comment
  SEINET10476246  Corydalis caseana Lowell Ahart 1983-8-16 Ahart 4301 Butte T26N R4E nw section 28. Along a small stream that flows into Butte Creek, ca. 1 mi east of Butte Meadows. Yellow Pine Forest; 1450 m. 1450 Comment
  CHSC44466  Cotula australis Lowell Ahart 1988-5-15 6004 Butte On the south side of Oroville Dam Boulevard, east of McDonald's, Oroville. 42 Comment
  JEPS117153  Crassula aquatica Lowell Ahart 2010-4-7 16574 Butte About 50 feet west of Virginia Street, about 20 feet south of Spruce Street, in Gridley 28 Comment
  CHSC82231  Crassula connata Lowell Ahart 2002-4-14 9481 Butte Area between the Railroad and the Midway Road, 50 yards south of Nelson Dlavo Road, in Nelson. 36 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
  UCD80239  Crassula connata CNPS SN Foothill Team 2005-4-14 SNFN 0034 c Butte Private Rock Ranch, located near the southeast corner of the Rock Ranch pasture. The plot is ~45 m from the southern fence and 30 m west of the eastern fence. 98 Comment
  CHSC110111  Crataegus monogyna L. P. Janeway 2012-3-21 10817 Butte Sacramento Valley. City of Chico; Lower Bidwell Park, north side Big Chico Creek between creek and Vallombrosa Ave near Crister Ave. 62 Comment
  SEINET9767044 Image available Croton setiger Richard Carter 2006-7-30 Butte N Chico, 0.3 mi N jct. Nord Hwy and Esplanade, between Esplanade and Hwy CA 99 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
  CHSC113528  Crypsis schoenoides Lowell Ahart 2014-9-23 19874 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
  UCD59826  Crypsis schoenoides H. L. Mason 1945-9-19 12729 Butte Gray Lodge Game Refuge, northwest of Pennington. Comment
  SEINET12329450  Cryptantha affinis L. Ahart, Ahart, P. 1984-1 4708 Butte about 2 mi SW of Forbestown Diversion Dam, NE of Forbestown Comment
  CAS-BOT-BC249066  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 46 Comment
  JEPS117205  Cryptantha flaccida Lowell Ahart 2010-5-14 16668 Butte Near south park fence, about 1/4 mile west of the entrance to the Disc Golf Area, west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 363 Comment
  SEINET10497274  Cryptantha flaccida Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4119 Butte T20N R8E ne sec 9. Along Ponderosa Way (Big Ridge Rd), ca. 2 mi se of the jct with Oroville-Quincy Hwy, ca. 15 mi ne of Oroville. Foothill Woodland; 500 m. 500 Comment
  SEINET10497275  Cryptantha flaccida Lowell Ahart 1985-5-6 Ahart 4931 Butte Along Table Mountain Boulevard, south of the Cambell Overflow, 1/2 mile south of the inter- section of Highway 70 and 149, about 7 miles north of Oroville. 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
  POM264772  Cryptantha intermedia Lincoln Constance 1941-5-28 2830 Butte S Branch of the Feather River at Magalia, Sierra Nevada foothills. 488 Comment
  CHSC39028  Cryptantha rostellata Lowell Ahart 1984-5-18 4606 Butte Peter Ahart Ranch, about 1.25 mi e of Honcut and 12 mi s of Oroville. 50 Comment
  CHSC37405  Cryptogramma acrostichoides R. A. Schlising 1982-6-30 4313 Butte E of Inskip and SE of Jones Meadow in NE part of county. 1783 Comment
  CHSC38430  Cucumis melo Vernon Oswald 1983-9-17 1041 Butte Upper Bidwell Park, Chico, near Chico Creek ca. 0.2 mi e of the end of the pavement. 91 Comment
  POM181962  Cupressus macnabiana J. G. Lemmon 1895-12-2 s.n. Butte Magnalia [=Magalia?] Comment
  UC335114  Cupressus macnabiana Lemmon Butte Bidwell's Comment
  UCD69257  Cupressus macnabiana D. Sanchez-Mata; D. Sanchez-Mata and P. Rodriguez-Rojo 1997-8-16 s.n. Butte Magalia near Magalia Reservoir. 680 Comment
  CHSC5950  Cupressus sempervirens M. MacArthur 1968-6-17 191 Butte SE side of PSA bld., Chico State College campus. 60 Comment
  CAS-BOT-BC224367  Cuscuta Barbara Ertter; Jeffrey Strachan; Lowell Ahart 1980-5-8 3325 Butte Peter Ahart Ranch ca 2-1/2 mi NE of Honcut between Marysville & Oroville 30 Comment
  RSA312628  Cuscuta californica H. L. Mason, Verne Grant 1946-9-27 13132 Butte Graylodge Game Refuge, Butte Sink Comment
  CHSC42955  Cuscuta indecora Lowell Ahart 1987-7-19 5840 Butte Along the Midway, about 1/2 mile south of Durham. 48 Comment
  JEPS118062  Cuscuta pentagona Lowell Ahart 2011-8-17 17627 Butte About 10 yards north of the trail, north of the crossing and on the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 203 Comment
  CHSC55056  Cuscuta subinclusa Lowell Ahart 1991-8-25 6706 Butte North side of the dirt road, Forest Rd 23N60 (Jordan Creek-Marble Creek Rd), east of Oroville-Quincy Hwy, about 5 miles (air) north-east of Brush Creek. 1097 Comment
  UC1586409  Cuscuta subinclusa Lowell Ahart 1991-8-25 6706 Butte about 4 air mi ne Brush Creek (e of Oroville-Quincy Hwy, on the n side of the dirt road, Forest Rd 23N60 (Jordan Creek-Marble Creek Rd)) 1097 Comment
  CHSC99547  Cymopterus terebinthinus var. californicus L. P. Janeway 2008-6-15 9415 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
  CAS-BOT-BC190248  Cynodon dactylon Lowell Ahart 1986-11-14 5465 Butte About 0.1 mile south of the clay burrow for Oroville Dam, 0.25 mile east of Larking Road, about 6 miles southwest of Oroville. 36 Comment
  JEPS116005  Cynodon dactylon Lowell Ahart 2009-6-19 15932 Butte West of the trail, on the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 203 Comment
  UCD80536  Cynodon dactylon CNPS SN Foothill Team 2006-5-25 SNNR 0936 Butte Horning Ranch (private). 119 Comment
  CHSC38273  Cynoglossum grande Vernon Oswald 1983-2-14 72 Butte Upper Bidwell Park, Chico, ca. 300 ft. n of Upper Park Rd. at about the level of Brown's Hole (2.8 mi e of the power lines). 256 Comment
  CHSC4715  Cynoglossum grande R. Carter 1966-3-13 295 Butte Found ca. 6 mi. E of Chico at intersection of Honeyrun Rd. and Humbug Rd in Butte Cr. Canyon. Ca. 150 yds. up slope on S side of canyon. Comment
  JEPS103599  Cynosurus echinatus Lowell Ahart 2002-6-21 9737 Butte On the sides of a poor dirt road, Watson Ridge, ca 2 miles (air) NE of Bald Rock Dome, ca 5 miles (air) N of Feather Falls (the town). 1086 Comment
  CHSC45125  Cyperus difformis Vernon Oswald 1987-8-13 3214 Butte Portion of Rancho Bosquejo. Feenstra's Riverview Orchard located at the w end of Cana Hwy between the s half of Cana Lake (on Dicus Slough) and the Sacramento River. Gravel bar along the river. 48 Comment
  SEINET9781676 Image available Cyperus difformis Richard Carter 2006-7-30 Butte N Chico, 0.3 mi N jct. Nord Hwy and Esplanade, between Esplanade and Hwy CA 99 Comment
  CAS-BOT-BC114605  Cyperus eragrostis Lowell Ahart 1987-7-17 5833 Butte On a sand bar along the North Fork of the Feather River, 271 Comment
  CHSC4368  Cyperus eragrostis M. Hillier 1966-5-29 Butte In dry creek bed along Manzanita Ave. Chico. Comment
  JEPS120838  Cyperus eragrostis Lowell Ahart 2013-7-9 18834 Butte South side of North Honcut Creek, west of the steel power line, about 2 air miles northeast of Honcut, about 13 air miles southeast of Oroville. Comment
  CHSC68389  Cyperus erythrorhizos L. P. Janeway 1986-9-20 1884 Butte Inside the bend at the junction of Chico-Butte City Hwy and Road 48. 28 Comment
  CDA33062  Cyperus erythrorhizos L. Ahart 1999-9-21 8273 Butte Along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. Comment
  CHSC34317  Cyperus flavescens L. Ahart 1981-9-6 3123 Butte In the rd gutter across the rd from the rest area just a little s of the Arch Rock tunnel on Hwy 70, ca. 4 mi n of Pulga. 500 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
  JEPS98501  Cyperus flavescens Lowell Ahart 2000-8-23 8664 Butte On the margins of a small pond, about 1/2 mile west of Pacific Heights road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. 42 Comment
  JEPS95883  Cyperus fuscus Lowell Ahart 1999-10-3 8287 Butte northwest of Parrott Landing; about 1 mile southeast of Ord Ferry; about 2 miles southeast of Ordbend; about 12 miles (air) southwest of Chico 32 Comment
  CDA2579  Cyperus iria Vernon Oswald 2000-8-12 9949 Butte In the Oroville Wildlife Area on the west side of the Feather River between Palm Avenue and Vance Avenue. Comment
  CHSC109757  Cyperus niger Lowell Ahart 2012-10-20 18502 Butte Soil and gravel bar on the south side of Big Chico Creek, about 100 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. 68 Comment
  JEPS98503  Cyperus niger Lowell Ahart 2000-8-23 8662 Butte On the margins of a small pond, about 1/2 mile west of Pacific Heights road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. 42 Comment
  POM313079  Cyperus niger var. capitatus H. L. Mason, Verne Grant 1946-9-27 13141 Butte 3 miles west of Biggs. Comment
  CHSC45128  Cyperus rotundus Vernon Oswald 1987-7-5 3093 Butte Rancho De Farwell. E. side of Sacramento River just upstream from Golden State Island (perhaps technically in Glenn Co. because of shifting channel). 33 Comment
  CHSC30386  Cyperus squarrosus J. D. Jokerst 1980-7-18 993 Butte Top of North Table Mt., ca. 100 m NW of the jct. of Cherokee Rd. and the E edge of Mt. Comment
  CHSC94594  Cyperus squarrosus Lowell Ahart 2006-9-11 13310 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
  UC1100557  Cyperus squarrosus Malcolm A. Nobs and S. Galen Smith 1949-7-29 1089 Butte on rd. from Biggs to Princeton (Butte Creek); Butte Creek Comment
  SD405  Cyperus squarrosus E. B. Copeland 1931-7-17 Butte Jonesville; abundant on drying bottoms of vernal pools. 1700 Comment
  CAS-BOT-BC114203  Cyperus strigosus Lowell Ahart 1987-7-17 5832 Butte Along the North Fork of the Feather River, near the Poe Power House, 271 Comment
  CHSC68412  Cyperus strigosus L. P. Janeway 1986-9-20 1881 Butte Bank along east side of Sacramento River; just southeast of the Ord Ferry Road bridge. 28 Comment
  UCD141152  Cyperus strigosus L. E. Hazeltine 1916-7-27 s.n. Butte Chico. Comment
  CAS-BOT-BC114205  Cyperus strigosus Lowell Ahart 1982-9-12 3796 Butte On the banks of North Honcut Creek, Peter Ahart Ranch, 50 Comment
  RSA78212  Cyperus strigosus E. K. Balls, Percy C. Everett 1952-10-14 18217 Butte 2.6 miles SW of Butte-Plumas County line. Highway 24. 274 Comment
  UC399278  Cystopteris fragilis Mrs. R. M. Austin May 1896 244 Butte bluffs, Butte Creek Butte Creek Comment
  CDA43421  Cytisus scoparius D. G. Kelch 2012-9-19 12 .36 Butte 300 m SSW of Forest Ranch E of Oroville along Rte 32. Comment
  SEINET10968264  Dactylis glomerata Mary Susan Taylor 1978-7-21 Taylor 1815 Butte On S side of Oroville-Quincy Hwy, along creek and in meadow, ca. 14 mi N of Lake Madrone, ca. 24 mi NE of Oroville; Yellow Pine Forest. 1463 Comment
  CHSC45735  Datura wrightii Elizabeth L. Knight 1988-4-15 7 Butte At Parrott Landing ca. 50 ft e of Sacramento River ca. 11 m sw of Chico. River bank. 30 Comment
  CHSC33895  Daucus pusillus M. S. Taylor 1981-5-21 3778 Butte S side of Concow Rd, ca. 0.5 mi s of its jct with Ponderosa Way, ca. 20 air mi n of Oroville. 853 Comment
  SEINET10454657  Daucus pusillus Mary Susan Taylor 1977-6-25 Taylor 1386 Butte Foothill Woodland-Yellow Pine Forest transition zone, on Ponderosa Way betwe en Cohasset and Forest Ranch. 610 Comment
  SEINET10873898  Daucus pusillus Mary Susan Taylor 1982-5-21 Taylor 4491 Butte T23N R5E ne/ne sec 6. Pulga Sw quad. On n side of Hwy 70 along Pulga Rd, near Pulga bridge over Feather River, ne of Oroville. On serpentine; 1600 ft. 488 Comment
  RSA126003  Delphinium gracilentum E. K. Balls 1957-5-23 22529 Butte 3 miles SE from turn off Hwy 32 to De Sabla. 671 Comment
  CAS-BOT-BC8567  Delphinium hansenii Herbert Faulkner Copeland 1920-5-1 s.n. Butte Jonesville 1219 Comment
  CHSC46501  Delphinium hansenii Lowell Ahart 1989-5-31 6328 Butte Along Truex Road, near Lake Oroville, about 1/4 mile north-west of the West Branch Bridge across Lake Oroville. 304 Comment
  CHSC104825  Delphinium hansenii subsp. hansenii Lowell Ahart 2010-6-1 16760 Butte On the north side of the Guardians Trail, about one mile east of the power lines, Upper Bidwell Park, about 3 miles (air) east of Chico. 188 Comment
  CHSC84274  Delphinium hansenii subsp. hansenii Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2003-5-27 10225 Butte On the east side of the dirt road, at Parking Area P, Upper Bidwell Park, about 5 miles east of Manzanita Avenue, Chico. 228 Comment
  CHSC50336  Delphinium hesperium subsp. hesperium Vernon Oswald 1990-6-1 4274 Butte Butte Creek Trail, ca. 1.75 miles north-northwest of Lake De Sabla. 579 Comment
  CHSC51109  Delphinium nudicaule Ginger S. Gough 1989-4-8 18 Butte Ca. 9 m ese of Coal Canyon Falls, n Table Mt., ca. 10 km ne of Oroville. 244 Comment
  CAS-BOT-BC8069  Delphinium nuttallianum A. A. Heller 1915-6-27 12038 Butte Jonesville in the Sierra Nevada 1676 Comment
  UC392243  Delphinium nuttallianum E. B. Copeland 1929-7-14 Butte Jonesville 1550 Comment
  UCD96105  Delphinium nuttallianum A. A. Heller 1915-6-27 12038 Butte Jonesville in the Sierra Nevada. 1371 Comment
  UCR133595  Delphinium nuttallianum H. F. Copeland 1929-6-12 1211 Butte Jonesville, near north Willow Creek 1524 Comment
  CHSC51903  Delphinium patens subsp. patens Richard Steward 1988-4-2 2 Butte Ca 6 mi N, 0.4 mi NW of Paradise. 701 Comment
  CHSC53167  Delphinium variegatum Steve Alverez 1980-3-24 20 Butte Ca. 4.7 km e of Chico, 2.1 km wsw of Paradise, 0.1 km s of n edge of Coon Ridge, 0.2 km n of Skyway road. 270 Comment
  CAS-BOT-BC17019  Delphinium variegatum N. Wynne; M. Peckham; J. Bamesberger 1994-3-30 08 Butte Upper Bidwell Park, in the open grasslands west of Horseshoe lake, on the north side of the paved park road. Comment
  SEINET7042739  Delphinium variegatum A. G. Vestal 1963-5-7 s.n. Butte Grassy field and adjacent roadside on road to Bangor. 5.2 miles southwest of Bangor. 4.7 miles east of Honcut. Loma quadrangle UTM Zone 10, 6315250mE, 4354982mN. Comment
  CAS-BOT-BC16977  Delphinium variegatum subsp. variegatum A. A. Heller; H. E. Brown 1902-5-10 s.n. Butte Berry Canyon (Near Clar Creek) Comment
  CAS-BOT-BC17023  Delphinium variegatum subsp. variegatum A. A. Heller 1918-4-19 12987 Butte Valley oak belt on the banks of Pine creek 12 miles north of Chico Comment
  CAS-BOT-BC82875  Dendromecon rigida Mrs. J. H. Morrison 1932-4-17 s.n. Butte Durham. Comment
  CHSC77436  Dendromecon rigida Laura Bogni 1997-4-5 25 Butte West side of Coutelec Rd.; 1 mi. due W of Sawmill Peak; 1/2 mi. SE of Magalia Resevoir. Magalia grove. 670 Comment
  CAS-BOT-BC194309  Deschampsia cespitosa subsp. cespitosa A. A. Heller 1928-6-16 14621 Butte Butte Meadows Comment
  SBBG30028  Deschampsia cespitosa subsp. cespitosa E. B. Copeland 1931-7-15 Butte Jonesville 1750 Comment
  CHSC112202  Descurainia sophia Lowell Ahart 2013-4-20 18558 Butte In corral at the barn, about 1/4 mile north of the Honcut Cemetary, about 3 1/4 miles (air) northeast of Honcut. 47 Comment
  CHSC25353  Dicentra formosa Marc P. Hayes 1977-4-22 13 Butte Ca. .5 km sw of Heinz creek, along small creek, ca. 200 m from its confluence and North Fork of Feather River. 450 Comment
  CHSC3526  Dicentra formosa John Francis 1966-4-23 142 Butte 2.6 miles E. of Forest Ranch on Hwy. 32. Comment
  UC1362265  Dicentra formosa Kingsley R. Stern 1964-5-15 2070 Butte ca 1.7 mi n Magalia (vicinity of Magalia Reservoir, just off Skyway road) Comment
  SEINET10904730  Dicentra formosa Lowell Ahart, Peter Ahart 1983-9-21 Ahart 4465 Butte T20N R8E section 5. Along French Creek, ca. 3 mi n of the Sly Creek Dam, n of Strawberry Valley. Yellow Pine Forest; 900 m. 900 Comment
  CHSC43679  Dicentra pauciflora Vernon Oswald; Lowell Ahart 1987-5-14 2903 Butte Ca. 2.5 mi e of Jonesville on the road connecting Humboldt and Humbug Roads, 0.2 mi se of Scotts John Creek. 1755 Comment
  UCD73058  Dichelostemma capitatum Ayzik Solomeshch 2003-4-9 s. n. Butte Wurlitzer Reserve, about 10 mi. north from Chico on Hwy 99, west side of the road. Comment
  CAS-BOT-BC500063  Dichelostemma capitatum M. S. Taylor 1982-5-2 4396 Butte S side of Hwy 70 at Pulga bridge, ca. 20 mi ne of Oroville. 487 Comment
  CAS-BOT-BC500065  Dichelostemma capitatum A. A. Heller 1915-3-24 11778 Butte Low grassy hills 8 miles north of Oroville below the blue oak belt in red clay soil, where it is plentiful, associated with Lepidium, Dodacatheon and Athysanus, the first plants in bloom.. Comment
  CHSC90588  Dichelostemma capitatum subsp. capitatum L. Orme 1980-3-20 7 Butte Clark Road, 3.2 km. S. of Paradise. Found on hillside. 370 Comment
  JEPS113335  Dichelostemma capitatum subsp. capitatum L. P. Janeway and B. Castro 2006-5-7 8578 Butte Northern High Sierra Nevada. Top of west-facing serpentine out-cropping above Little Butte Creek 0.4 km south of Paradise Lake dam. Comment
  RSA715725  Dichelostemma capitatum subsp. capitatum L. P. Janeway 2005-3-1 8339 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Rd. 1.8 km northeast of Bruce Road 134 Comment
  CAS-BOT-BC483252  Dichelostemma capitatum subsp. pauciflorum Lowell Ahart 1970-2-25 s.n. Butte Peter Ahart Ranch, Honcut 150 Comment
  SEINET10472574  Dichelostemma congestum Mary Susan Taylor 1980-5-27 Taylor 2712 Butte T21N R6E nw sec 29. Big Bend quad. Little Bald Rock, ca. 3 mi S of Brush Creek; granitic dome within Yellow Pine Forest. 1016 Comment
  CHSC90610  Dichelostemma multiflorum Roberta A. Boer 1980-4-25 15 Butte About 1/4 mi north of Humboldt Road and 1.5 mi east of the junction of Hwy 32 and Hwy 99, east side of Chico. 131 Comment
  RSA712798  Dichelostemma multiflorum L. P. Janeway 2005-6-26 8430 Butte Northern High Sierra Nevada, S facing slope 0.4km S of top of Batchelor Point, 0.6 km E of top of Rocky Ridge and Rim road (Ponderosa Way). 945 Comment
  SEINET8476791  Dichelostemma multiflorum M. J. Williams 1984-5-25 84- 22 -4 Butte Magalia, near Skyline road to Paradise. 168 Comment
  CAS-BOT-BC501080  Dichelostemma multiflorum Carl B. Wolf 1937-5-14 8664 Butte 2 1/2 miles SE of Orovill eon road to Wyandotte, Sierra Nevada Foothills 91 Comment
  CAS-BOT-BC501081  Dichelostemma multiflorum H. C. Cantelow 1940-5-10 3914 Butte SW of Oroville on Highway 24 Comment
  UC765918  Dichelostemma volubile R. F. Hoover 1936-5-21 1171 Butte Cana Comment
  RSA0060846  Digitaria ischaemum Lowell A. Ahart 2012-10-20 18494 Butte On the south side of Big Chico Creek, about 50 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. 69 Comment
  CHSC103934  Diplacus angustatus Lowell Ahart 2010-5-16 16693 Butte Bottom of a small drainage, just east of the basalt cliffs, about 1/4 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 368 Comment
  CHSC116347  Diplacus aurantiacus J. R. Keck Jr. 1978-5-23 PDR 330031 Butte Highway 70, Jarboe Gap. Near Poe Power House. Comment
  CAS-BOT-BC151942  Diplacus douglasii Frances Brown 1935-3-20 s.n. Butte Durham Comment
  CAS-BOT-BC150507  Diplacus grandiflorus Lewis S. Rose 1933-5-26 33186 Butte Feather River Canyon, 5 mi. E. of Oroville 152 Comment
  CHSC1752  Diplacus grandiflorus H. Summers 1929-5-19 Butte Comment
  CHSC1753  Diplacus grandiflorus R. M. Staley 1952-7-5 Butte Butte Creek. Comment
  CAS-BOT-BC153219  Diplacus kelloggii A. A. Heller; H. E. Brown 1902-5-6 5464 Butte Berry Canyon (near Clear Creek) Comment
  CHSC62788  Diplacus kelloggii L. P. Janeway 1993-5-20 4349 Butte Plumas National Forest. Swayne Hill. South-facing road cutbank overlooking lower French Creek. 746 Comment
  CAS-BOT-BC153214  Diplacus kelloggii C. C., Mrs. Bruce 1897-4-1 2102 Butte Little Chico Comment
  CAS-BOT-BC154174  Diplacus tricolor Peter H. Raven 1963-5-8 18360 Butte On State Highway 32, 5 miles west of Chico Comment
  CHSC88054  Disporum hookeri R. D. Fischer; Jenny Marr 2004-5-16 180 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. Located at n. end, e. side where rd. crosses mdw., near mdw. 1292 Comment
  CAS-BOT-BC208613  Distichlis spicata Lowell Ahart 1981-5-16 2808 Butte Along the edge of the road, Gray Lodge Waterfowl Management Area, 11 miles SW of Gridley 35 Comment
  JEPS115038  Dittrichia graveolens Lowell Ahart 2007-10-30 14510 Butte West side of Highway 99, about 100 yards north of Badger Creek Road, about 500 yards south of Richvale East Road, about 7 (air) miles west of Oroville 34 Comment
  CAS-BOT-BC136233  Dodecatheon alpinum E. B. Copeland 1930-6-26 439 Butte Jonesville 1550 Comment
  CAS-BOT-BC136235  Dodecatheon alpinum H. F. Copeland 1920-5-1 s.n. Butte Jonesville 1219 Comment
  UC22402  Dodecatheon clevelandii subsp. patulum Carl Purdy 1898-2-23 Butte Chico Comment
  CHSC13896  Dodecatheon hendersonii J. F. Goodwin 1972-3-4 180 Butte 3.8 mi ne on Cherokee road from Table Mountain Road in Oroville, on northwest side of road. Comment
  CHSC67293  Dodecatheon hendersonii James D. Jokerst 1984-3-20 1955 Butte Peter Ahart Ranch on bluff top of the North Fork Honcut Creek. Growing within 0.2-0.3 mi of #1952 and 1953. Comment
  JEPS14261  Dodecatheon hendersonii Rimo Bacigalupi with G. T. Robbins and F. Chisaki 1956-4-19 5613 Butte 6.0 mi s Oroville (along road from Oroville s to Bangor); s of Oroville 167 Comment
  UCD149944  Downingia insignis TBS 1967-5-9 s.n. Butte Gray Lodge. Comment
  CAS-BOT-BC41344  Draba verna Gladys L. Smith 1976-4-8 s.n. Butte Table Mountain. Comment
  SEINET10448471  Draba verna Lowell Ahart 1983-5-7 Ahart 3967 Butte Peter Ahart Ranch, ca. 3 mi ne of Honcut. Foothill Woodland; 50 m. 50 Comment
  UCD115553  Draba verna L. Ahart 1973-11-21 149 Butte Near North Honcut Creek, Peter Ahart Ranch, about 3/4 mile N and 2.5 miles E of Honcut, about 12 miles S of Oroville. 39 Comment
  CHSC31141  Draba verna var. aestivalis M. S. Taylor 1979-3-19 1929 Butte In vicinity of Pulga bridge over Feather River on Hwy 70, ca. 25 mi ne of Oroville. 487 Comment
  CHSC38420  Draba verna var. aestivalis Vernon Oswald 1983-4-4 262 Butte Upper Bidwell Park, Chico, on the north rim ca. 2.0 mi e of the power lines. 390 Comment
  CHSC46481  Draba verna var. aestivalis Lowell Ahart 1975-3-4 702 Butte Along the west side of North Honcut Creek, about 1 1/2 miles north and 3 miles east of Honcut, Peter Ahart Ranch, about 12 miles south of Oroville. 45 Comment
  CHSC102981  Dryopteris arguta Lowell Ahart 2009-8-20 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. 398 Comment
  CHSC12109  Dryopteris arguta J. M. Pitts 1972-4-16 133 Butte Locally abundant 100 yards se of Humbug Rd. 7.9 mi ne past Honeyrun Bridge. 426 Comment
  CHSC39839  Dryopteris arguta Ruby Gist 1935-5-4 Butte Humboldt Rd. Comment
  CHSC90204  Dryopteris arguta Lowell Ahart 2005-1-20 11473 Butte On the west side of McCabe Creek, above the high water line of Lake Oroville, about 1/4 mile south of the siphon, about 3 miles (air) northeast of Hurleton, about 7 miles (air) east of Oroville Dam. 304 Comment
  CHSC113116  Dysphania pumilio Lowell Ahart 2013-11-18 19272 Butte Below the high water line of Lake Oroville, about 200 yards east of the boat ramp at the end of Stringtown Road, about 2 1/2 miles (air) northeast of Hurleton. 267 Comment
  CHSC108611  Echinochloa colona L. P. Janeway 2011-10-20 10781 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
  CHSC30278  Echinochloa colona M. S. Taylor 1978-9-8 1886 Butte Along flood control slough, ca. 4 mi n of Chico, on Hwy 99. 60 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
  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
  SEINET10868954  Echinochloa crus-galli var. frumentacea Lowell Ahart 1984-9-17 Ahart 4791 Butte Peter Ahart Ranch, ca. 2.3 mi N and 0.3 mi E of Honcut, ca. 12 mi S of Oroville. Valley Grassland; 50 m elev. 50 Comment
  UCD61097  Echinochloa muricata P. B. Kennedy 1921-9-9 B Butte Rice Station, Biggs. Comment
  UCD61105  Echinochloa muricata E. M. Johnston 1915-7-1 149 -J Butte Biggs. Comment
  UCD137945  Echinodorus berteroi L. Ahart 1975-6-20 798 Butte Peter Ahart Ranch, Honcut. 45 Comment
  JEPS123910  Elatine Lowell Ahart 2015-4-24 20074 Butte About 2 miles east of Pennington Road, Gray Lodge Wildlife Area, about 3 1/2 miles (air) southwest of Gridley. Comment
  CHSC113454  Elatine ambigua Lowell Ahart 2014-8-8 19696 Butte Open edge of a rice field, Peter Ahart Ranch, about 2 1/4 miles north and 1/2 mile east of Honcut. 33 Comment
  JEPS122284  Elatine californica Lowell Ahart 2014-4-9 19349 Butte South of Rutherford Road, about 1/4 mile southeast of the headquarters of the Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley. Comment
  CHSC82221  Elatine heterandra Lowell Ahart 2002-4-15 9497 Butte On the bottom and sides of ponds and ditches, east of Parking Lot 10, Gray Lodge State Wildlife Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  CHSC11931  Eleocharis acicularis E. B. Copeland 1929-7-19 344 Butte Jonesville. 1550 Comment
  CHSC94835  Eleocharis acicularis var. acicularis Lowell Ahart 2006-10-8 13435 Butte Near a large gravel bar, east side of the North Fork of the Feather River, just east of where the river flows into a pool, on the west side of Highway 70, about 1/2 mile north of the Cresta Power House. 609 Comment
  JEPS109000  Eleocharis acicularis var. acicularis Lowell Ahart 2006-10-8 13435 Butte Near a large gravel bar, east side of the North Fork of the Feather River, just east of where the river flows into a pool, on the west side of Highway 70, about 1/2 mile north of the Cresta Power House 609 Comment
  CAS-BOT-BC113414  Eleocharis atropurpurea J. M. Tucker 1953-8-28 2681 Butte In rice plots, Biggs Rice Experiment Station Comment
  CHSC42383  Eleocharis bella Lowell Ahart 1987-5-27 5694 Butte On a sand bar along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC43788  Eleocharis bella Vernon Oswald 1987-5-25 2924 Butte Butte Creek Reserve on the se side of Butte Creek ne of Hwy 99, downstream from the dam for the Durham Mutual Ditch. 68 Comment
  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
  CHSC51022  Eleocharis bella Lowell Ahart; Vern Oswald 1990-7-5 6550 b Butte Small meadow, about 1/2 mile north of Butte Creek House, about 2 miles north-east of Snag Lake. 1828 Comment
  SD425  Eleocharis bella E. B. Copeland 1929-7-28 Butte Jonesville 1500 Comment
  HSC95808  Eleocharis engelmannii L. Ahart 2003-6-23 10302 Butte Fallow rice field on Peter Ahart Ranch, 300 yds. E of Palermo Honcut Hwy., 2 1/8 mi. N of Honcut, 12 mi. S of Oroville 30 Comment
  CAS-BOT-BC113368  Eleocharis engelmannii William Anderson 1960-6-4 s.n. Butte Experimental plots, Gray Lodge, Wildlife Management Area, Gridley. Comment
  CHSC28829  Eleocharis macrostachya J. D. Jokerst; T. B. Devine, D. Greenstein 1979-5-18 421 Butte Top of North Table Mt, ca 1.0 mi n of east edge jct with Cherokee Rd. 381 Comment
  CHSC68440  Eleocharis macrostachya L. P. Janeway 1996-5-27 4983 Butte South side of Lunt Road, 300 ft east of Nelson Bar Road. Between Lunt Road and a branch of Hodapp Creek. 457 Comment
  CHSC78289  Eleocharis macrostachya Lowell Ahart 2000-6-17 8481 Butte In seeps, about 1/4 mile northeast of Kunkle Reservoir, east of Pentz Magalia Road, about 2 miles south of Paradise. 548 Comment
  SEINET13711130  Eleocharis macrostachya Lowell William Ahart, Lowell William Ahart 2000-1 8702 Butte E Side of Sacramento River, NW of Parrott Landing, 12 Air Mi. SW Chico Comment
  JEPS124274  Eleocharis pachycarpa Lowell Ahart 2015-11-18 20664 Butte About 1 1/2 miles southeast of intersection of Palm Avenue and Larkin Road, about 5 miles (air) northeast of Gridley. Comment
  JEPS124330  Eleocharis pachycarpa Lowell Ahart 2015-10-20 20565 Butte About half way of and east of One Mile Pond, about 6 miles (air) east of Biggs. Comment
  JEPS98506  Eleocharis pachycarpa Lowell Ahart 2000-8-30 8676 Butte Bottom of a small depression, southeast of a large pond, about 100 yards south of the Feather River, west 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
  CHSC96094  Eleocharis quadrangulata L. P. Janeway 2006-7-19 8816 Butte Sacramento Valley. Waterfowl brood pond on shallow arm of Thermalito Afterbay, 225 m east of Wilber Road, 2.1 km south of Hwy 162. 41 Comment
  JEPS88549  Eleocharis quadrangulata Vernon H. Oswald and Lowell Ahart 1996-7-22 8092 Butte U.S. Fish and Wildlife Service parcel between 7 Mile Lane and Sacramento River (on s side of Tract 3.1, Sanctuary II); Sacramento River National Wildlife Refuge, Llano Seco Unit 32 Comment
  JEPS98442  Eleocharis quinqueflora Lowell Ahart 2000-5-27 8405 Butte 7 air miles N of Oroville (North Table Mounain, W side of Cherokee Road, S margin of boggy area in a large spring-like area, W of the cow chute, W of the lone oak tree) 403 Comment
  CDA38987  Eleocharis quinqueflora L. Ahart 2000-5-28 8408 Butte On the north margin of a large wash, 200 yards east of the road crossing, Peter Ahart Ranch, about 1 1/2 miles north and 1 1/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. Comment
  JEPS98377  Eleocharis radicans Lowell Ahart 2000-10-2 8700 Butte 2 mi SE of Ordbend (N of a large pond on E side of Sacramento River, NW of Parrott Landing, 1 mi SE of Ord Ferry, 12 air miles SW of Chico) 32 Comment
  CHSC46686  Eleocharis suksdorfiana V. Oswald; L. Ahart 1989-8-15 3936 Butte Soda Ridge Rd, 1.4 mi w of its junction with Coon Hollow Rd, ca. 1.2 mi (air) n of Philbrook Reservoir. Meadow adjacent to a shallow spring-fed lake n of and visible from the road. 1752 Comment
  UC821488  Elymus elymoides subsp. elymoides A. A. Heller 1917-7-29 12867 Butte summit above Jonesville 2133 Comment
  UCD61887  Elymus glaucus E. B. Copeland 1929-7-16 59 Butte Butte Co. Comment
  JEPS120108  Elymus glaucus subsp. glaucus Lowell Ahart 2012-6-28 18239 -A Butte On the north side of Big Chico Creek, east of Sycamore Pool, Lower Bidwell Park, Chico. Comment
  CHSC102502  Elymus glaucus subsp. jepsonii Lowell Ahart 2009-5-30 15795 Butte About 50 yards south of the fence and about 120 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 269 Comment
  CHSC76156  Elymus stebbinsii G. F. Hrusa; T. D. Wilfred 1997-6-27 13908 Butte Sierra Nevada. Feather Falls/Cascade Rd. to USFS 21N22Y, 1 km. E to summit. 1400 Comment
  JEPS87480  Elymus stebbinsii Lowell Ahart 1993-6-26 7025 Butte ca. 1 mi. w. Lost Creek Reservoir (w. side of dirt rd., Mooreville Ridge); Mooreville Ridge 1188 Comment
  CHSC44172  Elytrigia elongata V. Oswald; L. Ahart 1988-7-29 3634 Butte Ca. 3 mi (air) se of Jonesville on Humbug Rd, ca. 0.3 mi w of Butte Creek House at the logging road southward to Summit Lake and Snow Mtn. Roadside. 1755 Comment
  CHSC70331  Epilobium anagallidifolium R. A. Schlising 1983-8-27 4453 Butte N part of county; Coon Hollow Creek, NW of Philbrook Reservoir. Meadow along creek. 1706 Comment
  RSA29938  Epilobium brachycarpum I. L. Wiggins 1928-9-9 3342 Butte Sandy Gulch Creek, 3 miles west of Chico. Comment
  CHSC43426  Epilobium campestre Lowell Ahart 1977-7-10 1463 Butte On the bottom of a slough, about 1/10 mile north of Middle Honcut Road, about 1 mile north-west of Honcut. 30 Comment
  CHSC111163  Epilobium ciliatum subsp. ciliatum Lowell Ahart 2012-6-21 18205 Butte On the south sife of Big Chico Creek, about 200 yards east of the dam at Sycamore Pool, Lower Bidwell Park, Chico. 62 Comment
  CHSC39978  Epilobium ciliatum subsp. ciliatum L. Ahart; P. Ahart 1983-7-24 4212 Butte At the Forbestown Reservoir, ca. 5 mi ne of Forbestown. Along edge of road. 450 Comment
  CHSC70333  Epilobium ciliatum subsp. ciliatum R. A. Schlising; P. Broyles 1988-7-3 4562 Butte SE of Stirling City, past '5 Corners' at a small stream. Comment
  JEPS95032  Epilobium ciliatum subsp. ciliatum Lowell Ahart 1997-10-20 7926 Butte 3 air mi nw of Sly Creek Reservoir Dam (on w side of the sharp bend in South Fork of Feather River, about 1/4 mi n of the bridge across river, about 3/4 mi n of Golden Trout Crossing); South Fork of Feather River 914 Comment
  CHSC94617  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2006-9-11 13287 Butte South edge of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville. 431 Comment
  CHSC46642  Epilobium densiflorum Lowell Ahart 1989-7-4 6361 Butte Mined over area south of Oregon Gulch Road, about 1/4 mile north-west of the Cementery, about 1 1/4 miles west of Rocky Point, about 10 miles east and 3 miles north of Oroville. 335 Comment
  CHSC58927  Epilobium densiflorum Lowell Ahart 1992-7-29 6890 Butte In a depression, on slopes, about 1 miles north-east of the Carr Mine, about 3/4 mile north-west of Lotts Lake. 1798 Comment
  UC204400  Epilobium densiflorum A. A. Heller 1914-8-20 11691 Butte along creek about 5 mi s Pentz; Dry Creek Comment
  UC873166  Epilobium densiflorum A. A. Heller 1914-8-20 11691 Butte 5 mi s Pentz; Dry Creek Comment
  UC873273  Epilobium hallianum A. A. Heller 1914-6-22 11508 Butte Chico Meadows 1219 Comment
  JEPS117288  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
  CHSC109575  Epilobium minutum L. P. Janeway 2012-6-7 10866 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
  UC873441  Epilobium minutum A. A. Heller 1914-6-22 11503 Butte edge of forest about Chico Meadows 1219 Comment
  POM46486  Epilobium minutum C. C. Bruce 1897-06 s.n. Butte Butte Creek Comment
  RSA126006  Epilobium minutum E. K. Balls 1957-5-22 22512 Butte N. fork Feather River, above Camp Rogers, on trail to Buck s Lake. 655 Comment
  SEINET10453179  Epilobium minutum Mary Susan Taylor 1978-5-6 Taylor 1572 Butte Just N of Magalia, in large serpentine area along the Skyway. 610 Comment
  CHSC90982  Epilobium torreyi Lowell Ahart 2005-5-11 11795 Butte Swales between vernal pools, south part of North Table Mountain, about 200 yards northwest of the poor dirt road off of Cherokee Road, about 200 yards south of the rim into Beatson Hollow, about 7 miles (air) north of Oroville. 358 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
  JEPS124036  Epilobium torreyi Lowell Ahart 2015-7-4 20268 Butte 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. Comment
  UC725503  Epilobium torreyi A. A. Heller 1900-5-8 5513 Butte Berry Canyon Comment
  UCD106907  Epilobium torreyi H. A. Hannesson; R. N. Raynor 1941-5-9 s.n. Butte 4 miles S of Oroville. Comment
  CHSC102161  Epipactis gigantea Lowell Ahart 2009-6-3 15833 Butte On damp soil, 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
  POM107600  Epipactis gigantea C. C. Bruce 1897-05 1871 Butte Big Chico. Comment
  CHSC44623  Equisetum arvense Vernon Oswald 1984-4-16 1155 Butte Doon Campground on the Skyway, 1.0 mi e of Coutolenc Rd. at Lovelock. 853 Comment
  CHSC63795  Equisetum arvense S. C. Morey 1983-7-23 594 Butte Cherry Hill Meadow. On the n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  CAS-BOT-BC57254  Equisetum laevigatum Lowell Ahart 1989-5-28 6288 Butte south of Oregon Gulch Road, about 1/2 mile north of the Cemetery, about 1/4 miles west of Rocky Point, 335 Comment
  SEINET10530314  Equisetum telmateia var. braunii Mary Susan Taylor, K. Tharp 1982-4-8 Taylor 4288 Butte T19N R4E border sac 1/2. Oroville quad. Along both side of Oroville Dam Blvd (Alt. 40), ca. 1.5 mi s of Oroville Dam Visitors Center, Oroville. Foothill Woodland; 800 ft. 244 Comment
  CHSC51032  Eragrostis cilianensis Lowell Ahart 1990-8-15 6594 Butte Along a wash, below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/4 mile north-werst of the Enterprise Bridge across Lake Oroville. 228 Comment
  SEINET10562573  Eragrostis cilianensis Lowell Ahart 1988-7-24 Ahart 6134 Butte On dry bare disturbed soil, along the edge of La Porte Road, about 2 1/2 miles NE of Bangor. Foothill Woodland. 274 Comment
  CAS-BOT-BC204532  Eragrostis curvula Lowell Ahart 1984-5-19 4608 Butte Along the edges of Highway 70, about 1 mile south of the intersection of Cherokee Road and Highway 70, about 12.5 miles north of Oroville 300 Comment
  CHSC49242  Eragrostis mexicana subsp. virescens Vernon Oswald 1988-8-8 3686 Butte Harter's Cherokee Ranch located on the w side of Hwy 99 between Hwy 149 and Dry Creek. In irrigation ditch bordering Nelson Rd. 47 Comment
  UCD63884  Eragrostis mexicana subsp. virescens John Thomas Howell 1959-9-20 34675 Butte Sierra Nevada, lower foothills, eastern outskirts of Oroville. 60 Comment
  CAS-BOT-BC284084  Eragrostis pectinacea var. pectinacea Lowell Ahart 1979-9-8 s.n. Butte About 1/2 mile west of Oroville Dam 200 Comment
  CHSC44922  Eragrostis pectinacea var. pectinacea Lowell Ahart 1988-7-24 6135 Butte Along the north edge of La Porte Road, about 2 1/2 miles north-east of Bangor. 274 Comment
  JEPS113699  Eragrostis pectinacea var. pectinacea Lowell Ahart 2007-6-12 14083 Butte E side of Rockefeller Road, at the intersecton of Bald Rock Road and Rockefeller Road, about 13 mi (air) NE of Oroville 1011 Comment
  JEPS120720  Eragrostis pectinacea var. pectinacea Lowell Ahart 2013-10-12 19105 Butte On the east side of Palermo Honcut Highway, about 20 yards south of Palermo Road, Palermo. Comment
  CHSC48247  Eremogone cliftonii Vernon Oswald 1985-4-21 1713 Butte Between the WPRR and North Branch of the Feather River sw of Mayaro. 457 Comment
  CHSC41870  Ericameria arborescens Lowell Ahart 1986-10-16 5406 Butte Along Ponderosa Way, about 1/2 mile south of Lumpkin Road, about 3 miles south-west of Feather Falls. 609 Comment
  POM359551  Ericameria bloomeri H. F. Copeland 1927-9-2 383 Butte Jonesville. 1524 Comment
  UC1609001  Ericameria bloomeri Lowell Ahart 1993-9-8 7170 Butte ridge top about 1 mi e Snow Mountain 2103 Comment
  UC1609003  Ericameria nauseosa var. speciosa Lowell Ahart 1993-9-8 7169 Butte ridge top about 1 mi e Snow Mountain 2103 Comment
  CHSC62426  Erigeron canadensis L. P. Janeway 1993-9-7 4586 Butte Plumas National Forest. About 300 ft west of the south end of Ponderosa Dam. Along dirt road. 298 Comment
  CHSC88081  Erigeron divergens R. D. Fischer 2004-3-28 166 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located at base of cliffs below Disk Golf Course, above Guardian Trail. 304 Comment
  UC1586589  Erigeron foliosus var. hartwegii Vernon H. Oswald and Lowell Ahart 1991-5-31 4637 Butte along the roadbed on the s side Thermalito Diversion Pool (at the drainage on the ne side of Sycamore Hill); Lake Oroville State Recreation Area, Sycamore Hill 76 Comment
  UC600738  Erigeron glacialis var. glacialis H. F. Copeland 1932-8-22 Butte spring on ridge se of the head of Butte Creek; Jonesville 2100 Comment
  UC426985  Erigeron inornatus var. inornatus E. B. Copeland 1930-8-6 490 Butte Jonesville 1550 Comment
  CHSC48150  Erigeron lassenianus var. lassenianus Vernon Oswald 1984-7-2 1340 Butte Humbug Rd. 0.3 mi s-w of Humbug Summit. 2023 Comment
  CHSC3515  Erigeron philadelphicus John Francis 1966-4-6 105 Butte 1.5 miles E. of covered bridge (Honey Run). Beside road. Comment
  CHSC20971  Erigeron sumatrensis M. S. Taylor 1975-9-8 903 Butte Along Big Chico Creek, California State University, Chico, campus. 60 Comment
  CHSC101302  Eriodictyon californicum Lowell Ahart 2009-4-22 15591 Butte West side of Guardians Trail, about 100 yards north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  NY280796  Eriogonum heracleoides var. heracleoides C. L. Hitchcock 1960-6-12 22002 Butte 1 mi. N of Craters of the Moon National Monument. Comment
Read comments
Jul 31 2012
  UC176355  Eriogonum luteolum var. luteolum A. A. Heller 1913-9-16 11142 Butte hills near Big Chico creek (e of Chico) Comment
  CAS-BOT-BC27331  Eriogonum marifolium Edwin Bingham Copeland 1930-7-12 158 (UCBerkeley no. 410) Butte Above Jonesville 2000 Comment
  CAS-BOT-BC263200  Eriogonum marifolium var. marifolium A. A. Heller 1928-7-25 14700 Butte Along the forest service trail between Jonesville and Butte Creek House Comment
  CAS-BOT-BC263201  Eriogonum marifolium var. marifolium H. F. Copeland 1920-7-11 72 Butte Scotch John Meadows 1828 Comment
  CHSC33279  Eriogonum marifolium var. marifolium R. A. Schlising; R. Banchero 1980-7-31 3949 Butte N part of county, on andesite outcrops and flats N of Snow Mt. 1950 Comment
  CHSC113842  Eriogonum nudum var. oblongifolium Lowell Ahart 2014-8-24 19727 A Butte On the south side of the road, about 50 yards west of Woodleaf Creek, about 1/2 mile southwest of the Forbestown Reservoir Dam, about 4 miles (air) northeast of Forbestown. 611 Comment
  CHSC39135  Eriogonum nudum var. oblongifolium R. A. Schlising; K. Tarp 1982-7-28 4355 Butte Plumas Natl. Forest, sw of Coyote Gap and s of Big Bar Mt. 868 Comment
  JEPS117630  Eriogonum nudum var. oblongifolium Lowell Ahart 2010-9-12 17149 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
  CAS-BOT-BC269856  Eriogonum nudum var. pubiflorum A. A. Heller 1940-9-28 839 Butte West of Pentz Comment
  CHSC51009  Eriogonum roseum Lowell Ahart 1990-8-15 6591 Butte Below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/2 mile north-west of the Enterprise Bridge across Lake Oroville. 274 Comment
  CHSC92286  Eriogonum umbellatum var. ahartii L. P. Janeway; B. Castro 2005-8-1 8516 Butte Northern High Sierra Nevada. Plumas National Forest; open serpentine slope/knob 0.5 km south of the Paradise Lake dam; east side of Little Butte Creek. 756 Comment
  CHSC94921  Eriogonum umbellatum var. ahartii L. P. Janeway 2006-7-11 8813 Butte Northern High Sierra Nevada. High in canyon of North Fork Feather River along Hwy 70 0.5 km northwest of Bardee's Bar. Serpentine outcrop road cut bank; southeast-facing. 579 Comment
  CHSC11921  Eriogonum ursinum var. ursinum E. B. Copeland 1930-7-6 411 Butte Jonesville. 2050 Comment
  CHSC45481  Eriogonum ursinum var. ursinum Lowell Ahart 1981-8-1 3017 Butte Near the top of Humboldt Peak. 2133 Comment
  CAS-BOT-BC262343  Eriogonum vimineum Lowell Ahart 1981-8-11 3026 Butte Peter Ahart Ranch, Honcut 50 Comment
  CHSC37768  Eriophyllum lanatum var. croceum M. S. Taylor 1981-5-21 3760 Butte S side of Lake Concow, ca. 5 mi e of Paradise. 640 Comment
  CHSC56751  Eriophyllum lanatum var. grandiflorum J. D. Jokerst 1980-4-21 Butte Junction of Pentz-Magalia Hwy and Pentz Road. Comment
  RSA4146  Eriophyllum lanatum var. grandiflorum E. B. Copeland 1930-7-11 492 Butte Jonesville 1550 Comment
  CHSC38452  Erodium cicutarium Vernon Oswald 1983-3-13 153 Butte Upper Bidwell Park, Chico, in Parking Area P (2.0 mi e of the power lines). 207 Comment
  HSC67597  Erodium cicutarium J. P. Smith 1973-3-22 5912 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  SEINET10495107  Erodium cicutarium Mary Susan Taylor 1973-1 Taylor 38 Butte Upper Bidwell Park, Chico. Associates: Stipa pulchra, Lasthenia chrysostoma, Layia fremontii. 61 Comment
  SEINET10495114  Erodium moschatum Mary Susan Taylor 1975-3-25 Taylor 420 Butte Chico. Comment
  SEINET10495115  Erodium moschatum Mary Susan Taylor 1973-1 Taylor 52 Butte Upper Bidwell Park, Chico. Associates: Stipa pulchra, Lasthenia chrysostoma, Layia fremontii. 61 Comment
  JEPS127005  Eryngium castrense Lowell Ahart 2016-5-24 20849 Butte 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. Comment
  UC764149  Eryngium castrense R. F. Hoover 1937-5-19 2245 Butte 10 mi. n.w. Chico Comment
  CAS-BOT-BC153857  Erythranthe glaucescens Lowell Ahart 1985-5-6 4934 Butte On the bottom of Lindo Channel, about 1/10 mile east of Longfellow Avenue, Chico 65 Comment
  CHSC44785  Erythranthe glaucescens R. Banchero 1980-3-21 73 Butte Along Hwy 32, 4.2 mi N of Humbolt Rd, Ca 0.5 mi N of Ten Mile House. 487 Comment
  CHSC45725  Erythranthe glaucescens Phillip Scott 1988-4-18 38 Butte Mud Creek Bridge, Meridian Way ca. 3 mi w of Chico. 42 Comment
  CHSC113285  Erythranthe guttata Lowell Ahart 2014-5-13 19465 Butte Below the high water line of Lake Oroville, about 200 yards southwest of the poor parking area, on the east side of McCabe Creek, about 11 miles (air) east of Oroville. 244 Comment
  CHSC31965  Erythranthe guttata J. D. Jokerst 1979-4-20 1205 Butte Top of North Table Mt., ca. 200 meter NE of the junction of Cherokee Rd. and the E sde of the mountain. Comment
  CHSC42716  Erythranthe microphylla Lowell Ahart 1987-6-9 5735 Butte On a sand bar on the west side of the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
Read comments
Jun 25 2013
  CHSC105162  Erythranthe nasuta Christopher T. Ivey 2007-3-31 371 Butte Big Chico Creek Ecological Reserve. 360 Comment
  CHSC45025  Erythranthe nasuta Cathy Young 1988-4-23 10 Butte 1/4 mi w of Durham, 50 yds n of Durham Highway on the w bank of Butte Creek. 67 Comment
  SD4667  Erythranthe primuloides E. B. Copeland 1930-7-15 460 Butte Jonesville, in wet meadow 1500 Comment
  CHSC43962  Erythranthe pulsiferae Vernon Oswald 1988-5-30 3347 Butte Humbug Rd. 1.0 mi s of Nimshew. 627 Comment
  CHSC27202  Erythrina corallodendron Pam Moyer 1971-10-30 54 Butte CSUC Campus. NE corner of Bidwell Mansion porch. Comment
  SEINET10469659  Erythronium cliftonii Mary Susan Taylor 1981-4-8 Taylor 3512 Butte T22N R4E east center sec 1, Pulga SW quad. On serpentine slope, w side of Ponderosa Way, where powerlines cross the rd on Rocky Ridge, ca. 6 mi n of Jarbo Gap on Hwy 70, ca. 21 air mi n of Oroville. 3000 ft. 914 Comment
  CHSC32641  Erythronium multiscapideum M. S. Taylor; L. Hanson 1981-3-31 3457 Butte N side of spur rd, ca. 1/10 mi w of its jct with Ponderosa Way (Rim Rd, rd to Flea Valley), ca. 5 mi ne of its jct with Hwy 70 at Jarbo Gap. 792 Comment
  SEINET10528913  Erythronium multiscapideum Zierenberg 1983-4-15 ZIERENBERG 24 Butte Just s of Magalia Reservoir Dam. USGS East Paradise quadrangle. UTM grid coordinates 214080 zone 10. Serpentine soil. 2160 feet. 658 Comment
  JEPS119533  Eschscholzia caespitosa Lowell Ahart 2012-4-20 17898 Butte On the west side of South Rim Trail, animal trail north of Bloody Pin Trail, about 5/8 mile west of Highway 32, about 7 3/8 miles northeast of Chico, south part of Upper Bidwell Park. Comment
  POM196495  Eschscholzia caespitosa subsp. caespitosa A. A. Heller 1927-4-7 14336 Butte among lava rocks at the Salmon Hole on Chico Creek E of Chico Comment
  CHSC1198  Eschscholzia californica E. Canfield 1904-5-23 Butte Hooker Oak Field. 76 Comment
  CAS-BOT-BC419506  Eschscholzia lobbii A. A. Heller 1913-4-6 10714 Butte Hills near Big Chico creek, east of Chico Comment
  CHSC31778  Eschscholzia lobbii L. Ahart 1974-4-14 409 Butte Peter Ahart Ranch, Honcut. 45 Comment
  HSC67920  Eschscholzia lobbii J. P. Smith 1973-3-22 5918 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  UCD142644  Euphorbia ocellata Rimo Bacigalupi; L. R. Heckard 1962-6-1 8582 Butte Road to Centerville, about 200 feet east of its inception at the Paradise Road junction. 60 Comment
  CHSC115428  Euphorbia peplus Ariana Gehrig 2013-4-18 Butte City of Chico. Big Chico Creek at Rio Chico Way. 64 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
  SEINET10872046  Evax caulescens Mary Susan Taylor 1978-5-7 Taylor 1597 A Butte In Valley Grassland, on E side of Williams Road, ca. 1/4 mi N of Pentz Road, on Butte College Campus, ca. 15 mi S of Chico. 30 Comment
  CHSC93936  Festuca californica L. P. Janeway 2006-5-28 8641 Butte Northern High Sierra Nevada. Open serpentine bowl on west side of Concow Road about 3.2 mi northeast of the upper end of Concow Reservoir. 860 Comment
  SEINET11688370  Festuca californica Unknown 1985-1 4998 Butte 0.12 mi E of dirt road, about 1.5 mi NE of Concow of Reservoir 732 Comment
  JEPS127201  Festuca microstachys var. pauciflora Lowell Ahart 2016-6-4 20935 Butte About 1 mile (air) northwest of Sunset Hill, about 2 1/8 miles (air) northwest of Forbestown. Comment
  CHSC93102  Festuca occidentalis L. P. Janeway 1994-5-13 4645 Butte Northern High Sierra Nevada. 0.7 mi north of Nelsons Crossing (Fall River) and 1.0 mi west of Kenebeck Ridge. 1127 Comment
  SEINET10508608  Festuca pacifica Mary Susan Taylor 1976-3-30 Taylor 1046 Butte Valley Grassland, ca. 0.5 mi W of Chero kee Rd, ca. 2 mi NE of Oroville, on Table Mt; with Limnanthes douglasii. 373 Comment
  CHSC34184  Festuca subulata L. Ahart 1981-9-15 3159 Butte On the sides of Pinkard Creek, ca. 1/2 mi n of Lost Creek Reservoir. 1100 Comment
  CHSC74164  Festuca subulata B. Castro; L. Gehrung 1998-7-2 798 Butte Ca 6 air mi NW of Brush Creek, ca 1 mi SE of Hungry Hunt Peak, ca 50 ft N of USFS Rd 23N28 as it loops around a drainage. 1021 Comment
  SEINET10475089  Filago gallica Mary Susan Taylor 1978-5-7 Taylor 1591 Butte In Valley Grassland, on E side of Williams Road, ca. 1/4 mi N of Pentz Road, on Butte College Campus, ca. 15 mi S of Chico. 30 Comment
  SEINET13711401  Fimbristylis autumnalis Lowell William Ahart, Lowell William Ahart 1999-1 8145 Butte 12 Air Mi SW of Chico, 2 Mi SE Ordbend Comment
  UC1562318  Floerkea proserpinacoides Vernon Oswald 1990-6-26 4320 Butte 0.5 air mi sw of Humbug Summit (near the headwaters of the north branch of Willow Creek, 0.6 mi w of Humbug Road via the logging road just s of Cold Springs); Willow Creek 1969 Comment
  CHSC107431  Foeniculum vulgare L. P. Janeway 2011-7-7 10504 Butte Sacramento Valley. Oroville, north edge of the levee on the south side of the Feather River, 125 m east of Bedrock Park. 49 Comment
  CHSC12117  Fragaria vesca M. F. Smith 1972-4-22 6 Butte On Madrone Meadows Road two (2) miles from turn off at Lumpkin Road 1/2 mile west of Feather Falls Community. 914 Comment
  UCD13180  Fragaria vesca A. C. Myers 1996-4-25 41 Butte Butte Co. 20 mi NE of Oroville, along Rd. B-1, on Feather Falls trail, ca. 1 mi from trailhead. Ca. 2000 ft. Comment
  CAS-BOT-BC55654  Frangula purshiana Lowell Ahart 1981-9-15 3175 Butte On the W side of the Sly Creek Reservoir 1150 Comment
  CHSC46219  Frangula rubra Pauleen Broyles 1987-5-18 1023 Butte In town of Paradise. Along both sides of bicycle path (old RR bed) in remnant of Yellow Pine Forest. Comment
  JEPS119531  Fraxinus dipetala Lowell Ahart 2012-4-20 17896 Butte On the west side of South Rim Trail, about 5/8 mile west of Highway 32, about 8 1/2 miles (air) northeast of Chico, south part of Upper Bidwell Park. Comment
  CHSC43072  Fritillaria eastwoodiae F. J. Fuler; R. A. Schlising 1987-3-20 4511 Butte Along Truax Rd, near N end of West Branch Bridge (Hwy 70) crossing West Branch Feather River. 304 Comment
  CHSC88649  Fritillaria eastwoodiae Linnea Hanson 1987-4-15 296 Butte Plumas National Forest. On Woodleaf Road. 853 Comment
  NY319697  Fritillaria phaeanthera L. H. Morrison 1932-4-17 s.n. Butte Near Durham. Comment
  SEINET3992162  Fritillaria pluriflora A. A. Heller 1916-3-5 12278 Butte Along the highway 10 miles north of Chico Comment
  CHSC34223  Fritillaria recurva M. S. Taylor 1981-5-21 3784 Butte Jct of Camp Creek and rd 23N10, ca. 4 mi n of Pulga on Feather River Hwy 70. 1005 Comment
  CHSC87418  Fritillaria recurva R. D. Fischer 2004-3-11 108 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Collected off cut bank near northern end of Humboldt Trail. 435 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
  CHSC101257  Galium aparine Lowell Ahart 2009-4-17 15548 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
  CHSC52129  Galium aparine Patricia Haberkern 1974-3-24 20 Butte Ca. 0.25 mi. NE Sycamore Pool off South Park Drive, Bidwell Park, Chico. 60 Comment
  RSA713006  Galium aparine L. Ahart 2006-5-8 12597 Butte 50 yards E of the fence and reservoir, 2.25 miles W of the parking area, cow chute, and Cherokee Road, N Table Mtn, 7 miles air N of Oroville. 296 Comment
  CHSC48881  Galium bolanderi Vernon Oswald 1984-6-19 1305 Butte Hwy 32, 6.3 mi N of Forest Ranch. Comment
  CHSC93865  Galium bolanderi Lowell Ahart 2006-6-9 12661 Butte On the east side of Bardees Bar Road, north of the small stream, south 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
  RSA755313  Galium bolanderi L. Ahart 2009-6-3 15813 Butte On the west side of the trail, about 150 yards southwest of the table at the old homestead and 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. 273 Comment
  UCD121612  Galium bolanderi Harriet Sindel 1970-5-10 8 Butte Cohasset Highway 11.5 miles northeast of intersection with Keefer Lane, Cohasset. 609 Comment
  CHSC86597  Galium divaricatum L. P. Janeway 2003-5-7 7779 A Butte Northern Sierra Nevada Foothills. Kelly Ridge between Lake Oroville Visitors Center and south end of Oroville Dam. 329 Comment
  POM60708  Galium nuttallii var. tenue A. A. Heller, H. E. Brown 1902-5-6 5454 Butte Berry Canyon (near Clear Creek). Comment
  CHSC116994  Galium parisiense Lowell Ahart 2016-6-4 20925 Butte On the north side of Lumpkin Road, about 100 yards north of McCabe Creek, about 3 miles (air) west of Forbestown. 387 Comment
  JEPS127203  Galium parisiense Lowell Ahart 2016-6-4 20925 Butte About 100 yards north of McCabe Creek, about 3 miles (air) west of Forbestown. Comment
  SEINET10869772  Galium parisiense var. leiocarpum Lowell Ahart 1991-5-12 Ahart 6652 Butte On the banks of a small wash, Peter Ahart Ranch, about 1 1/4 miles north and 2 1/2 miles east of Honcut, about 12 miles southeast of Oroville. Foothill Woodland. T17N R4E S11. 49 Comment
  UCD121893  Galium porrigens George F. Hrusa 1990-4-4 7644 Butte Throughout SE to NE side of North Butte. 350 Comment
  CHSC90038  Galium porrigens var. tenue Gerold C. Grant 1990-4-23 23 Butte NE side of Crown Point road and ca. 40 m se of Highway 32, 19.1 km ne of Chico. Roadside. 580 Comment
  CHSC48886  Galium sparsiflorum subsp. glabrius Vernon Oswald; M. S. Taylor 1985-5-30 1793 Butte Rim Rd. (Ponderosa Way) 2.7 mi N of Jarbo Gap. 853 Comment
  SEINET10500744  Galium sparsiflorum subsp. glabrius Mary Susan Taylor 1980-9-12 Taylor 3332 Butte T24N R3E nw sec 21, Paradise quad. W side of Hwy 32, ca. 3 mi N of Forest Ranch, near Forest Ranch Fire Control Station; Yellow PIne Forest. 975 Comment
  CHSC38660  Galium triflorum Vernon Oswald 1983-6-13 673 Butte Upper Bidwell Park, Chico, at the retaining wall along Chico Creek at the E end of Centennial Ave. 85 Comment
  SD4919  Galium triflorum E. B. Copeland 1930-7-15 472 Butte Jonesville, in damp meadow 1500 Comment
  UC1562433  Gamochaeta argyrinea Lowell Ahart 1990-5-25 6481 Butte below high-water line Lake Oroville (e of the Enterprise boat launch area, about 1/8 mi nw of the Enterprise Bridge across Lake Oroville) 259 Comment
  JEPS119506  Garrya fremontii Lowell Ahart 2012-3-2 17759 Butte About 200 yards north of Ten Mile House Road, about 200 yards west of Highway 32 about 9 miles northeast Chico. Comment
  SEINET12137514  Garrya fremontii T. A. Welgan 1979-1 1 Butte ca 9 mi SE of Chico on Hwy 32, 3 yds N of Highway 32 213 Comment
  CHSC109651  Gastridium phleoides Lowell Ahart 2012-5-12 18036 Butte On the sides of Bloody Rim Trail, about 20 yards east of South Rim Trail, about 5/8 mile west of Highway 32, south part of Upper Bidwell Park, about 7-3/8 miles (air) northeast of Chico. 220 Comment
  SEINET10507449  Gastridium ventricosum Lowell Ahart 1985-6-17 Ahart 5050 Butte Fields Ridge, about 4 miles south-east of Feather Falls. Comment
  CHSC113439  Gayophytum diffusum subsp. parviflorum Lowell Ahart 2014-7-7 19561 Butte About 20 yards east of the Skyway, about one-mile north of Stirling City. 1142 Comment
  UC600544  Gayophytum humile H. F. Copeland 1932-7-24 Butte Butte Creek Canyon Jonesville (w wall, near headwaters) Comment
  UCD22552  Genista monspessulana James I. Mallory 1970-5-26 375 Butte Along little Butte Creek, up 100' above creek north of Paradise. 259 Comment
  CHSC99674  Gentiana newberryi var. tiogana R. A. Schlising; A. Kannely 2006-9-19 4466 Butte Butte Creek House Meadow Ecological Reserve, about 3 miles e of Jonesville, along Humbug Road. In turf of large meadow on Butte Creek. 1767 Comment
  JEPS117906  Gentiana newberryi var. tiogana R. A. Schlising & A. Kannely 2006-10-26 4467 Butte Butte Creek House Meadow Ecological Reserve, about 3 miles E of Jonesville, along Humbug Road 1767 Comment
  UC600680  Gentianella amarella subsp. acuta E. B. Copeland 1929-7-28 Butte Jonesville Butte Creek (meadow by Butte Creek) 1500 Comment
  CHSC51883  Gentianopsis simplex L. P. Janeway 1988-7-29 3106 Butte Mdw on S side of Butte Cr 1/2 mi W of Cherry Hill. 1402 Comment
  RSA4134  Gentianopsis simplex E. B. Copeland 1930-8-2 440 Butte Jonesville. 1500 Comment
  JEPS121303  Geranium Lowell Ahart 2013-11-29 19296 Butte Below the high water line of Lake Oroville, about 50 yards W of the old road, W of the first area to park, about 3.5 air miles NE of Oroville Dam. Comment
  CHSC672  Geranium carolinianum V. Holt 1935-3-30 Butte Chico Creek ridge. 365 Comment
  JEPS114965  Geranium carolinianum Lowell Ahart 2008-5-8 14721 Butte Below the high water line of Lake Oroville, about 50 yards east of the poor parking area, McCabe Creek area, about 3/4 mile southwest of the Enterprise Bridge, about 11 miles (air) east of Oroville 264 Comment
  CHSC55799  Geranium core-core Vernon H. Oswald; Lowell Ahart 1991-11-2 4884 Butte North end of Long Bar Rd., just south of the boundary of the State Recreation Area on the south side of Thermalito Diversion Pool, near Oroville. 97 Comment
  CHSC50047  Geranium dissectum Lowell Ahart 1990-4-8 6434 Butte On steep banks, on the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  RSA754945  Geranium purpureum L. Ahart 2008-5-12 14762 Butte East side of Ponderosa Way, about 1 air mile southwest of the Ponderosa Dam, about 2.25 air miles northwest of Forbestown. 671 Comment
  RSA713003  Gilia capitata subsp. pedemontana L. Ahart 2006-5-8 12607 Butte North of Phantom Falls, about 3/4 mile northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 384 Comment
  SEINET10837194  Gilia tricolor Mary Susan Taylor 1980-3-1 Taylor 2350 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
  UCD22631  Gilia tricolor Joseph Laferriere 1982-4-18 15 Butte Table Mountain, off Cherokee Rd., 5 miles NE of Oroville. 396 Comment
  RSA638252  Gilia tricolor subsp. tricolor Michael A. Vincent, Ethan H. Freid 1998-4-6 s.n. Butte Table Mountain Comment
  CHSC3229  Ginkgo biloba Virginia Hagaman 1966-5-5 165 Butte Chico State College Campus. Comment
  CAS-BOT-BC266485  Githopsis diffusa Lowell Ahart 1982-6-15 3574 Butte About 1.5 miles E of Camp 18, about 8 miles E of Feather Falls 1000 Comment
  CAS-BOT-BC266585  Githopsis pulchella A. A. Heller 1914-5-22 11423 Butte Near Richardson Springs Comment
  CHSC33153  Githopsis specularioides R. Watts 1974-4-30 29 Butte Found ca. 15 mi ne of Chico on Cohasset Road. Comment
  SEINET10873090  Githopsis specularioides Lowell Ahart, Peter Ahart 1983-6-12 Ahart 4041 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
  UC115342  Glinus lotoides C. C. Parry Nov. 1882 Butte Chico; Pacific Coast, Chico Comment
  CHSC40274  Glyceria elata Lowell Ahart 1985-6-30 5079 Butte Along a stream, east of the dirt road to the Forbestown Res., about 2 1/2 miles north-east of Forbestown. 868 Comment
  CHSC11825  Gnaphalium palustre E. B. Copeland 1931-7-18 694 Butte Jonesville, along Butte Creek. 1500 Comment
  CHSC40908  Gnaphalium palustre Lowell Ahart 1985-11-7 5239 Butte About 90 feet below the high water line of Lake Oroville, on the south side of the South Fork of the Feather River, where Sucker Creek flows into the river, about 1/2 mile west of the Ponderosa Dam. 274 Comment
  CHSC25448  Goodyera oblongifolia Hayes; Warner 1977-9-11 75 Butte Ca. 100 m n of road between Jonesville and Butte Meadows, exactly 8.4 mi from the junction of the Butte Meadows road with Hwy 32. 1219 Comment
  CHSC112904  Gratiola ebracteata B. Castro; Robin Carter 2011-4-29 1876 Butte Sacramento Valley. Between Hwy 99 and the Thermalito Afterbay levee, ca 0.6 mi S of jcn of Hwys 99 and 162W, ca 0.4 mi N of Hamilton Rd. 34 Comment
  CHSC30677  Gratiola ebracteata M. S. Taylor; J. D. Jokerst 1980-3-28 2399 Butte Just e of Chico, ne corner of jct of Notre Dam Blvd and the Skyway, ca. 1.8 mi e of Hwy 99. 68 Comment
  UCD123729  Gratiola ebracteata R. N. Raynor; H. A. Hannesson 1941-5-9 s.n. Butte 4 miles west of Oroville. Comment
  UCD132469  Grindelia camporum R. Curtis 1995-5-28 10 Butte 250 meters south of Bear Hole, Big Chico Creek. Approximately 5 miles south of Bidwell Park road in Upper Bidwell park. 300 Comment
  CHSC44633  Grindelia squarrosa var. serrulata Vernon Oswald 1987-9-1 3229 Butte Humboldt Rd. 2.0 mi ne of Lomo, near the benchmark. Edge of the road. 1381 Comment
  JEPS120074  Hedera helix Lowell Ahart, John Dittes, Josephine Guardino 2012-4-6 17806 Butte On the north side of Big Chico Creek, Lost Park in Bidwell Park, City of Chico. Comment
  JEPS117210  Hedypnois rhagadioloides Lowell Ahart 2010-5-16 16680 Butte About 1/4 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville 378 Comment
  UCD146601  Helianthus bolanderi G. F. Hrusa; T. D. Wilfred 1997-7-3 13984 Butte above Little Butte Creek, north of Magalia. Immediately east of Holmwood Drive. 725 Comment
  SEINET10497652  Heliotropium curassavicum subsp. oculatum Mary Susan Taylor 1982-5-22 Taylor 4507 Butte T17N R2E nw/ne sec 19. Pennington quad. Graylodge Wildlife Refuge, near parking lot 6 on Rutherford Rd, e of Pennington Rd, ca. 12 mi sw of Gridley. 70 ft. 21 Comment
  JEPS115050  Heliotropium europaeum Lowell Ahart 2007-11-3 14575 Butte Below the high water line of Lake Oroville, about 1/2 mile east of the Power House below Kunckle Reservoir, about 3/4 mile north of the Lime Saddle Campground, about 5 1/4 miles (air) southeast of Paradise 257 Comment
  UCD119454  Heliotropium europaeum L. Ahart 1983-9-17 4426 Butte East end of Kunkle Reservoir Dam, south of Paradise. 600 Comment
  CHSC30711  Hemizonella minima M. S. Taylor 1980-5-27 2669 Butte On Big Bald Rock, ca. 3 mi e of Lake Madrone. 997 Comment
  CHSC381  Hemizonella minima B. Richardson 1929-5-20 Butte Cohasset. Comment
  CHSC50827  Herniaria hirsuta subsp. hirsuta Vernon Oswald 1990-7-17 4362 Butte Paradise Lake, ca. 3 miles north of Magalia. At the culvert on Coutolenc Creek. 777 Comment
  CHSC27306  Hesperevax caulescens T. B. Devine 1977-5-22 403 Butte Wurlitzer Ranch (west) Vina Prairie, field, next to Haile Road ca 1 mi sw of Hwy 99. 57 Comment
  CAS-BOT-BC310190  Hesperevax sparsiflora var. sparsiflora Lowell Ahart 1979-5-8 s.n. Butte 3 miles north-east of Honcut. Near North Honcut Creek. About 1/4 mile north of the Peter Ahart Ranch 70 Comment
  CHSC48602  Hesperolinon micranthum Vernon Oswald 1983-7-6 805 Butte Near Calif. Hwy. 32, 6.3 mi n-e of Forest Ranch. Growing on an old logging road in yellow pine forest. 1036 Comment
  RSA107426  Hesperolinon micranthum L. S. Rose 1955-6-15 s.n. Butte 6 miles SE of Paradise on Pentz Road 427 Comment
  SEINET10469503  Heteranthera limosa Lowell Ahart 1991-7-21 Ahart 6669 Butte About 1/4 mile south of Butte City Highway, west of the Rice Experiment Station, about 3 miles west of Highway 70, north of Biggs. Agricultural. T19N R2E S34. 30 Comment
  CHSC34816  Heterocodon rariflorum M. S. Taylor 1980-4-27 2548 Butte Ca 1 mi s of Nimshew. ca. 1/4 mi e of Nimshew Rd. 609 Comment
  CHSC62101  Heterocodon rariflorum B. Castro 1987-5-21 122 Butte Ca 9 mi E of Chico via Hwy 32 and ca 2 mi E of Altatina Drive. 463 Comment
  SEINET10939149  Heterocodon rariflorum Mary Susan Taylor 1980-5-27 Taylor 2684 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
  UC1609085  Heterocodon rariflorum Lowell Ahart 1993-6-20 6981 Butte about 1 mi nw Lost Creek Reservoir Dam; Mooreville Ridge, Jackass Flat 1158 Comment
  CHSC38644  Heteromeles arbutifolia Vernon Oswald 1982-12-17 25 Butte Bidwell Park, Chico, between Chico Creek and Upper Park Rd about 200 ft w of the end of the pavement. 91 Comment
  CAS-BOT-BC311009  Heterotheca oregona John Thomas Howell 1959-9-20 34620 Butte Eastern outskirt of Oroville on level of Feather River 60 Comment
  CHSC26676  Hibiscus lasiocarpos var. occidentalis M. S. Taylor; M. Hayes 1977-8-16 1441 Butte In small area on Clear Creek between the Organic garden and the man-made ponds, on Butte College Campus, ca. 15 mi s of Chico. 60 Comment
  CHSC69039  Hieracium albiflorum Lowell Ahart 1997-8-1 7779 Butte Near some small streamlets of Little Kimshew Creek, in Snow Meadow, about 1/4 mile east of Table Mountain, about 8 miles (air) northeast of Stirling City. 1524 Comment
  CDA42950  Hirschfeldia incana L. Ahart 2012-10-28 18533 Butte Marshy area on the north side of Big Chico Creek, south of Table 34, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CHSC102816  Holcus lanatus Lowell Ahart 2009-6-19 15937 Butte Along trail, on the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 203 Comment
  CHSC27987  Holodiscus microphyllus var. glabrescens M. S. Taylor 1978-8-18 1697 Butte On top of Humboldt Peak at Humboldt Summit. 2158 Comment
  RSA4243  Holodiscus microphyllus var. glabrescens E. B. Copeland 1929-7-17 375 Butte Above Jonesville. 2000 Comment
  UC897973  Holozonia filipes A. A. Heller 1914-7-13 11565 Butte 10 mi e Oroville (Mt. Ida ranch) Comment
  CHSC34087  Hordeum brachyantherum subsp. brachyantherum J. D. Jokerst 1981-5-14 1319 Butte Top of North Table Mt, ca 25 M north of Cherokee Rd at the west edge of the mountain. Comment
  CHSC49553  Hordeum brachyantherum subsp. brachyantherum Vernon Oswald 1984-7-2 1343 Butte Humbug Rd. 1.7 mi s-w of Humbug Summit. In a meadow. 1859 Comment
  CAS-BOT-BC285092  Hordeum marinum subsp. gussoneanum John Thomas Howell 1962-6-15 37485 Butte Magalia 731 Comment
  CHSC101126  Hordeum murinum subsp. leporinum Lowell Ahart 2009-5-8 15671 Butte On the south side of the grave road, about 10 yards east of Cedar Grove Parking Area in Lower Bidwell Park, Chico. 67 Comment
  CHSC26471  Hordeum murinum subsp. leporinum P. Moyer 1972-3-11 126 Butte 100 ft. from Citrus Ave. Bridge on slope of n bank of Chico Ck. 60 Comment
  CHSC92553  Hordeum murinum subsp. leporinum Lowell Ahart 2005-12-11 12518 Butte On the sides of small ditches, on the Rice Experiment Station, between the Main Ditch and Stine Lateral, on the north side of Hamilton Road, about 1/4 mile east of Riceton Highway, about 2 1/4 miles (air) east of Biggs. 30 Comment
  CHSC2155  Hordeum vulgare H. Silberman; D. Isaac 1949-5-17 Butte Manzanita Ave., 4 mi. E. of Chico. 60 Comment
  RSA451654  Horkelia fusca subsp. parviflora H. F. Copeland 1928-8-20 458 Butte Jonesville. 1524 Comment
  CHSC46590  Horkelia fusca subsp. tenella Vernon H. Oswald 1989-7-4 3838 Butte Meadow at Butte Creek House, ca. 3.3 mi (air) se of Jonesville. Edge of meadow. 1767 Comment
  CHSC48854  Horkelia tridentata Vernon Oswald 1983-6-22 743 Butte Near Humboldt Rd. (to Butte Meadows) 2.1 mi n-e of Calif. Hwy 32. 1310 Comment
  UC600377  Horkelia tridentata subsp. tridentata H. F. Copeland 1930-7-24 Butte Jonesville Comment
  UCD113567  Horkelia tridentata var. flavescens L. P. Janeway 1987-6-26 2297 Butte At Rag Dump. 1173 Comment
  CAS-BOT-BC536259  Horkelia tridentata var. tridentata H. C. Cantelow 1940-5-10 s.n. Butte 2.3 miles west of Brush Creek Ranger Station Comment
  CAS-BOT-BC536260  Horkelia tridentata var. tridentata Mrs. J. H. Morrison 1932-5-30 s.n. Butte Durham Comment
  CAS-BOT-BC536261  Horkelia tridentata var. tridentata E. B. Copeland 1929-7-23 370 Butte Jonesville 1550 Comment
  CHSC11966  Hypericum anagalloides E. B. Copeland 1929-7-16 381 Butte Jonesville. 1550 Comment
  JEPS66777  Hypericum anagalloides H. R. Dutton 1921-1 Butte Chico, Hooker Oak Comment
  SEINET10905163  Hypericum anagalloides Mary Susan Taylor 1975-10-4 Taylor 955 Butte E side of Kunkle Reservoir, ca. 1/4 mi E of Pentz-Magalia Hwy, ca. 1 mi S of Paradise; open to sun. 610 Comment
  CHSC25260  Hypericum concinnum M. S. Taylor 1977-6-26 1385 Butte S side of Ponderosa Way, ca. 3 mi w of Forest Ranch. 548 Comment
  CAS-BOT-BC410222  Hypericum concinnum Clarence R. Quick 1964-7-9 64 -55 Butte north of Jarbo Gap Comment
  RSA458236  Hypericum formosum var. scouleri H. F. Copeland 1930-7-24 1316 Butte Jonesville. Comment
  CHSC51886  Hypericum mutilum L. P. Janeway; Heidi Wienert, Scott George 1988-7-27 3095 Butte Near Sacramento River: Damp bank of W side of Murphy Slough, across from Golden State Island. 38 Comment
  CHSC45686  Hypochaeris radicata Vernon Oswald 1985-4-29 1728 Butte Bald Rock Rd. 0.3 mi e of Oroville-Quincy Hwy. 640 Comment
  UCR66521  Ipomopsis aggregata H. F. Copeland 1928-8-14 0451 Butte Northern Sierra Nevada Mtns., neighborhood of Jonesville 1585 Comment
  CHSC31178  Iris macrosiphon M. S. Taylor 1980-3-1 2344 Butte Immediate vicinity of Elliot Spring House, s side of Neal Rd, ca. 2 mi sw of Paradise. 301 Comment
  SEINET10469751  Iris macrosiphon Mary Susan Taylor 1978-5-6 Taylor 1577 Butte Just N of Magalia, in large serpentine area along the Skyway. 610 Comment
  UC1377667  Iris tenuissima John Ingram and Arlynn Ingram 1960-4-6 500 Butte s of Paradise (at Endicot Springs on Neal Road); Endicot Springs Comment
  CHSC11963  Isoetes bolanderi E. B. Copeland 1929-7-29 329 Butte Above Jonesville. 1750 Comment
  CAS-BOT-BC69946  Isoetes howellii E. B. Copeland 1903-5-30 3281 Butte Chico. Comment
  CHSC29118  Isoetes nuttallii M. S. Taylor; J. D. Jokerst, L. Ahart 1980-4-6 2438 Butte Ca. 150 ft nw of 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
  CHSC31517  Isoetes nuttallii L. Ahart 1974-4-11 369 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC44626  Isoetes nuttallii Vernon H. Oswald 1987-4-22 2343 Butte Butte Creek Reserve between the creek and Durham Mutual Ditch, ne of Hwy 99. 67 Comment
  CHSC45588  Isolepis setacea M. S. Taylor 1981-5-6 3622 Butte W side of rd leading to Jackson Ranch, ca. 5 air mi N of Feather Falls. 1127 Comment
  CHSC61344  Isolepis setacea Lowell Ahart 1993-7-22 7082 Butte Along Fall River, west of the bridge across Fall River, about 6 (air) miles north-east of Feather Falls. 1036 Comment
  CHSC109653  Jasminum mesnyi Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-19 18021 Butte On the north side of Big Chico Creek, on the north side of the paved park raod, southeast part of the old walnut orchard, south of Vallombrosa Avenue, about 1/8 mile west of Peterson Drive, Lower Bidwell Park, Chico. 76 Comment
  CHSC20505  Juglans californica var. hindsii M. S. Taylor 1975-5-6 559 Butte Ca. 50 ft w of Little Cafeteria, on s side of Big Chico Creek, California State University, Chico. Comment
  UCR262435  Juglans californica var. hindsii George K. Helmkamp, E. A. Helmkamp 2009-9-5 15575 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
  CDA39581  Juglans hindsii J. T. Howell 1959-9-2 34703 Butte Feather River Highway 2 miles below West Branch Bridge. Comment
  CHSC8228  Juncus B. Hamilton 1969-5-5 46 Butte Found near Big Chico Creek in back of Dining hall. Comment
  JEPS113851  Juncus Lowell Ahart 2007-6-12 14079 Butte Along the north edge of Bald Rock Road, about 100 yards northeast of the intersection of Bald Rock road and Rockefeller Road, about 13 miles (air) northeast of Oroville 982 Comment
  CHSC112884  Juncus acuminatus Robin Carter; Sabrina Bell 2011-5-18 Butte Sacramento Valley. Ca 0.8 air mi E of Hwy 99, in N end of Thermalito Afterbay, ca 0.3 mi S of Tres Vias Rd. on E side of hill toward upper end of S-trending peninsula. 42 Comment
  CHSC49604  Juncus articulatus Vernon Oswald 1987-6-8 2959 Butte Butte Creek Reserve on the se side of the creek, ne of Hwy 99. 67 Comment
  CHSC116018  Juncus articulatus subsp. articulatus Lowell Ahart 2015-10-20 20576 Butte On the west side of the Feather River, about halfway of and east of One Mile Pond, about 6 miles (air) east of Biggs. 26 Comment
  CDA34649  Juncus balticus var. balticus L. Ahart 2009-8-23 16291 Butte On the east side of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. Comment
  JEPS113186  Juncus brachyphyllus Lowell Ahart 2007-5-22 13898 Butte On Big Bald Rock, about 14 miles (air) northeast of Oroville 955 Comment
  CHSC6131  Juncus bufonius var. bufonius E. Parreno 1968-5-13 110 Butte E Boundary of Upper Bidwell Park at the left of the road's end. Chico. Comment
  CHSC94045  Juncus bufonius var. bufonius R. D. Fischer 2005-9-1 709 Butte Sierra Nevada foothills, adjacent Hwy. 32, at the lower Humboldt Trailhead at the edge of Bidwell Park. Plants were growing on a springy slope, part of the old, by-passed, roadbed. 396 Comment
  CHSC99011  Juncus bufonius var. bufonius Lowell Ahart 2008-5-30 14795 Butte Dry to damp granite soil, small meadow, bottom of an old gold mined area, about 150 yards west of the cemetery, about 150 yards north of Oregon Gulch, about 10 miles (air) northeast of Oroville. 305 Comment
  JEPS98590  Juncus bufonius var. bufonius Lowell Ahart 2000-6-29 8533 Butte 1/2 mi W of Flea Mountain; ; W side Concow Rd at Flea Meadow, 3 1/2 air mi N of Concow Reservoir, 5 air mi E of Magalia 1036 Comment
  UC1609090  Juncus bufonius var. bufonius Lowell Ahart 1993-5-17 6949 Butte about 1 1/2 mi n and 3 mi e of Honcut (about 12 mi se of Oroville, on w side of Dunstone Road); Dunstone Road 60 Comment
  CHSC28135  Juncus bufonius var. congestus J. D. Jokerst 1979-5-6 212 Butte Peter Ahart Ranch, N.E. of intersection of Palermo-Honcut Hwy. and Central House Rd. Comment
  CHSC49607  Juncus bufonius var. congestus Vernon Oswald 1987-6-12 2986 Butte East side of Sacramento River just n of Golden State Island (perhaps technically in Glenn County because of shifting channel). 33 Comment
  CHSC61347  Juncus bufonius var. occidentalis Lowell Ahart 1993-7-29 7119 Butte Near a seep, about 2 1/2 miles north-east of Bald Mountain, about 6 1/2 miles north-east of Stirling City. 1584 Comment
  CHSC26722  Juncus capitatus M. S. Taylor; M. Hayes 1978-4-14 1565 Butte On e side of Williams Rd, ca. 1/4 mi n of Pentz Rd, on Butte College campus, ca. 15 mi s of Chico. 30 Comment
  CHSC82263  Juncus capitatus Lowell Ahart 2002-4-24 9535 Butte Vernal pools and swales, in a field, on the east side of Lone Tree Road, about 1 1/8 miles north of Cox Lane, about 3 miles (air) southwest of Palermo, about 7 miles (air) south of Oroville. 35 Comment
  UCD141418  Juncus capitatus Lowell Ahart 1973-5-24 227 Butte Peter Ahart Ranch, about 1.5 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  UC1609270  Juncus covillei var. covillei Lowell Ahart 1993-7-23 7101 Butte about 6 air mi ne of Feather Falls (about 100 yards w of the bridge across Fall River); w side of Fall River 1036 Comment
  CDA2694  Juncus cyperoides G. D. Barbe, T. C. Fuller 1982-6-14 3675 Butte Black Bart Road 0.5 mile west of Forbestown Road. 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
  UC600802  Juncus drummondii H. F. Copeland 1932-8-22 Butte se of head of Butte Creek; Jonesville 2100 Comment
  SEINET5716466 Image available Juncus effusus Lowell Ahart 1985-1 5086 Butte About 2.5 mi. NE of Forbestown. 10 yds. S of dirt rd. to the Forbes town Res.; Forbestown 869 Comment
  CDA43012  Juncus effusus subsp. pacificus L. Ahart 2008-7-23 15152 Butte On the east side of McCabe Creek, below the high water line of Lake Oroville, about 100 yards southwest of the poor parking area, about 3/4 mile southwest of the Enterprise Bridge, about 11 miles (air) east of Oroville. Comment
  CHSC26750  Juncus effusus subsp. pacificus M. S. Taylor; M. Hayes 1977-8-16 1449 Butte Near man-made ponds on Clear Creek, Butte College Campus, ca. 15 mi s of Chico. 60 Comment
  CHSC96957  Juncus effusus subsp. pacificus Lowell Ahart 2007-7-15 14304 Butte Along the east side of Encina Grande Road (Bloomer Hill Road), about 50 yards north of the home, about 1/4 miles (air) southwest of Bloomer Hill. 808 Comment
  RSA795239  Juncus effusus subsp. pacificus L. Ahart 2011-8-23 17646 Butte In the large meadow, Pinkard Creek flows through the meadow, east of the corral, about 1 mile north of Lost Creek Reservoir Dam, about 4 air miles northeast of Clipper Mills. 1134 Comment
  CHSC107568  Juncus effusus var. pacificus Lowell Ahart 2011-8-19 17637 Butte About 30 yards east of Know-northing Creek, in low area on the north side of Lumpkin Ridge Road, about 1/2 mile southwest of the intersection of Lumpkin Ridge Road, County Road and road to Cascade, about 5 miles (air) northeast of Feather Falls. 1252 Comment
  CHSC11961  Juncus ensifolius E. B. Copeland 1929-7-16 346 Butte Jonesville. In marsh. 1550 Comment
  CHSC78335  Juncus ensifolius Lowell Ahart 2000-7-11 8568 Butte On the sides of a dirt road, about 100 yards north of Lumpkin Ridge Road, upper west branch of Know-nothing Creek, about 1 mile southwest of the intersection of Lumpkin Ridge Road, road to Fall River, and the County Road, about 4 miles (air) northeast of Feather Falls. 1219 Comment
  CHSC96319  Juncus ensifolius L. P. Janeway 2006-8-12 8843 Butte Northern High Sierra Nevada. Meadow at head of northwestern branch of Keyser Creek, below sharp bend in Concow Road, 0.3 km east of the summit of Bald Mountain. 1695 Comment
  SEINET10938237  Juncus ensifolius Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4137 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
  CHSC28654  Juncus exiguus J. D. Jokerst; M. S. Taylor 1979-10-13 392 Butte Adjacent to creek. Intersecton of Jordan Hill Rd. (Ponderosa Way) and Griffth Gulch. 701 Comment
  CHSC103508  Juncus laccatus Peter F. Zika 2009-6-17 24514 Butte Cascade Range Highlands. Below Concow Road 10 road miles above (N of) Route 70. 1100 Comment
  CHSC47556  Juncus leiospermus Lowell Ahart 1979-4-30 1854 Butte On the top of Table Mountain, near the large parking area, south-east side of the road, about 7 miles north of Oroville. 396 Comment
  UC600803  Juncus mexicanus H. F. Copeland 1930-7-28 Butte by Humbug Road Jonesville 1828 Comment
  CHSC64243  Juncus nevadensis S. C. Morey 1983-8-3 692 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  CDA39188  Juncus nevadensis T. C. Fuller 1962-6-12 9201 Butte Bottomland of Butte Creek, 2 miles east of Butte Meadows. 0 Comment
  CHSC113956  Juncus orthophyllus Lowell Ahart 2014-7-16 19692 Butte Dry northwest part of a large wet meadow (some bog), about 30 yards east of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC96885  Juncus patens Lowell Ahart 2007-7-15 14305 Butte Along the east side of Encina Grande Road (Bloomer Hill Road), about 20 yards southeast of the home, about 1/4 miles (air) southwest of Bloomer Hill. 808 Comment
  RSA755380  Juncus patens L. Ahart 2009-7-9 16004 Butte East side of Ten Mile House Road, Upper Bidwell Park, about 3/4 air miles west of Highway 32, about 10 miles northeast of Chico. 210 Comment
  CHSC111086  Juncus tenuis Peter F. Zika 2011-7-7 25541 A Butte Near parking for Big Bald Rock Trailhead, 0.2 air miles E of Big Bald Rock, northern Sierra Nevada Highlands (n SNH). 1050 Comment
  CHSC29984  Juncus tenuis J. D. Jokerst; R. A. Schlising, M. S. Taylor 1980-4-7 551 Butte 1.0 mi E of Palermo-Honcut Hwy, 50 m S of Melody. 48 Comment
  CHSC31928  Juncus tenuis J. D. Jokerst; B. Banchero, R. A. Schlising 1980-6-16 844 Butte N of and adjacent to Humboldt Rd, 0.1 mi W of its junction with the Skyway, community of Butte Meadows. 1341 Comment
  CHSC42386  Juncus tenuis Lowell Ahart 1987-5-27 5695 Butte On a sand bar along the North Fork of the Feather River, near the Poe Power House, about 2 miles southeast of Jarbo Gap. 271 Comment
  CHSC80894  Juncus tenuis Lowell Ahart 2001-7-6 8885 Butte West of a large pond, large overflow area on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ord Bend, about 12 miles (air) southwest of Chico. 32 Comment
  JEPS113853  Juncus triformis Lowell Ahart 2007-6-12 14075 Butte Seeps, about 50 yards south of Bean Creek Road, about 1/4 mile (air) southeast of Little Bald Rock, about 15 miles (air) northeast of Oroville 974 Comment
  JEPS118345  Juncus triformis Lowell Ahart 2011-7-9 17563 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
  JEPS113748  Juncus usitatus Lowell Ahart 2007-7-11 14292 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
  UC2026866  Juniperus lusitanica Lowell Ahart, Susan Bazell, Josephine Guardino, Wes Dempsey 2012-7-5 18265 Butte Cedar Grove, parking area, Lower Bidwell Park, Chico. Comment
  NY790276  Keckiella corymbosa J. V. Monachino 1952-7-23 s.n. Butte Oroville, at outskirts of the city on the Feather River. Comment
  CAS-BOT-BC237823  Keckiella lemmonii Lowell Ahart 1982-9-29 3841 Butte Along Pinkard Creek, about 1 1/2 miles north of the Lost Creek Res. Dam, about 3 1/2 miles north-west of Strawberry Valley 1200 Comment
  JEPS94327  Kelloggia galioides Lowell Ahart 1997-8-1 7802 Butte about 6 air mi ne of Stirling City (about 1 1/2 mi se of Bald Mountain, sw of Keyser Creek, on s side of the County Road); s side of the County Road 1432 Comment
  RSA447647  Kelloggia galioides M. B. Dunkle 1931-8-12 s.n. Butte Paradise Valley. Comment
  CDA6295  Kickxia elatine L. Ahart 2002-10-17 9993 Butte About 1 1/2 miles south of Highway 162 (Oroville Quincy Highway), about 3 miles (air) northeast of Oroville Dam. On the gentle hills below the high water line of Lake Oroville. Comment
  CHSC96358  Kyllinga brevifolia T. C. Fuller 1962-12-7 9952 Butte Sacramento Valley. 100 sq ft infestation in sun and semi-shade in lawn of Cynodon dactylon and Paspalum dilataum, 282 Chico Rd, Oroville. Comment
  OBI68607  Kyllinga brevifolia T. C. Fuller 1962-12-7 9952 Butte Sacramento Valley. 282 Chico Rd, Oroville Comment
  CAS-BOT-BC340532  Lactuca serriola A. A. Heller 1916-9-9 12654 Butte Near Durham Comment
  CHSC65326  Laennecia coulteri Lowell Ahart 1995-10-4 7678 Butte Rice field, Peter Ahart Ranch, about 2 miles north and 1/4 mile easata of Honcut, about 12 miles south of Oroville. 36 Comment
  SEINET5709525 Image available Laennecia coulteri Grady L. Webster, G. Ledyard Stebbins 1967-1 7532 Butte Rancho Llano Seco, near end of west arm of Eddy Lake.; Eddy Lake Comment
  UCD133612  Laennecia coulteri G. L. Webster; G. L. Stebbins 1967-8-27 7532 Butte Rancho Llano Seco, near end of west arm of Eddy Lake. Comment
  CAS-BOT-BC341306  Lagophylla glandulosa H. M. Hall 1914-7-20 9765 Butte Humboldt Road 335 Comment
  JEPS19943  Lagophylla glandulosa R. F. Hoover 1936-5-21 1169 Butte 7 mi n Chico Comment
  CHSC277  Lasthenia californica J. Turner 1930-3-25 Butte Chico Creek Canyon. 152 Comment
  SJSU11864  Lasthenia californica subsp. californica J. B. Willis Jr. 1969-5-3 96 Butte by Cherokee Rd 8 mi NE of Oroville Comment
  SEINET10475350  Lasthenia fremontii Mary Susan Taylor 1974-3-26 Taylor 93 Butte Meadow in vicinity of Stillson Canyon and Old City Dump, ca. 2 mi E of Chico; soil wet rocky clay. Comment
  JEPS104321  Lasthenia gracilis Lowell Ahart 2003-4-10 10052 Butte Near the e side of the ''sunken area,'' ca 150 yd w of the e rim of South Table Mountain, ca 2 1/2 mi (air) n of Oroville. 320 Comment
Read comments
Jan 19 2011
  CHSC44391  Lathyrus angulatus Lowell Ahart 1988-5-12 5991 Butte Open pasture field, about 1/4 mile north-east of the Honcut Cemetery, Joie Osgood Ranch, about 3 1/2 miles east and 1 1/2 miles north of Honcut. 60 Comment
  SD116537  Lathyrus angulatus Barbara Ertter, Lowell Ahart, Jeff Strachan 1980-5-6 3277 Butte Peter Ahart Ranch ca. 2.5 miles NNE of Honcut between Oroville & Marysville, dried vernal pool previously plowed as grainfield, now reverted, rocky; higher ground around pool 29 Comment
  CHSC50323  Lathyrus brownii Vernon Oswald; Lowell Ahart 1990-5-29 4264 Butte Logging Rd (F-Line) on the west side of Butte Creek, at the camping area ca. 0.4 mile southwest of Humboldt Rd, ca. 1.5 mi west-southwest of Butte Meadows. 1316 Comment
  CHSC93071  Lathyrus brownii L. P. Janeway; B. Castro 1994-4-21 4643 Butte Northern High Sierra Nevada. Western end of Watson Ridge about 2.0 mi east-northeast of Bald Rock Dome. 1079 Comment
  CAS-BOT-BC213345  Lathyrus jepsonii subsp. californicus Lowell Ahart 1987-4-30 5488 Butte On the banks of North Honcut Creek, about 2 1/2 miles north and 3 miles east of Honcut, about 12 miles southeast of Oroville 67 Comment
  CHSC30955  Lathyrus jepsonii var. californicus L. Ahart 1980-6-20 2415 Butte Near the edge of the south fork Feather River, ca. 1/2 mi n of the Golden Trout Crossing, ca. 5 mi w of the Sly Creek Dam. 800 Comment
  JEPS119626  Lathyrus latifolius Lowell Ahart 2012-6-14 18196 Butte Annie's Glen, Lower Bidwell Park, Chico. Comment
  CHSC25009  Lathyrus nevadensis var. nevadensis E. B. Copeland 1931-6-10 654 Butte Jonesville. 1500 Comment
  UC478504  Lathyrus nevadensis var. nevadensis E. B. Copeland 1931-6-10 310 Butte Jonesville 1500 Comment
  CHSC96806  Lathyrus sphaericus Lowell Ahart 2007-4-30 13698 Butte On both side of Jordan Hill Road, about 1 1/2 miles west of Concow Reservoir. 358 Comment
  CHSC42560  Lathyrus sulphureus Lowell Ahart 1987-5-11 5621 Butte South of the Forbestown Ditch, about 2 1/2 miles north-east of Forbestown. 868 Comment
  CAS-BOT-BC321755  Layia fremontii A. A. Heller 1914-4-14 11292 Butte Hills 8 miles N of Oroville Comment
  SEINET10839204  Layia fremontii Mary Susan Taylor 1976-3-6 Taylor 1017 Butte Valley Grassland on Table Mountain, ca. 100 m W of Cherokee Rd, ca. 2 mi NW of Oroville. 373 Comment
  SFV8419  Layia fremontii K. Corson 1969-4-6 8 Butte Just past disposal site, 3 miles east of Chico. Comment
  UCSB63596  Layia fremontii Wilson, Simon 1995-4-11 Butte Ca. 5 mi. n of Chico, 1 mi. toward Richardson Springs from junction of Cohasset Rd. and Richardson Springs Rd.; Richardson Springs USGS Quadrangle T23N, R1E, NW 1/4 sect. 23 115 Comment
  CAS-BOT-BC274354  Leersia oryzoides Lowell Ahart 1987-7-3 5777 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  CHSC52966  Lemna gibba Vernon H. Oswald 1991-2-23 4470 Butte Chico Sewer Treatment Plant on River Rd, ca. 4.5 mi w of Chico. In an irrigation ditch along the west boundary of the treatment plant. 39 Comment
  CHSC23141  Lepechinia calycina M. S. Taylor 1976-2-25 1003 Butte Ca. 10 ft n of Hwy 32, ca. 15 mi e of Chico. Comment
  JEPS115570  Lepechinia calycina Lowell Ahart 2009-5-23 15759 Butte About 10 miles northeast of Chico, Upper Bidwell Park, about 1/4 mile west of the intersection of Highway 32 and Ten Mile House Road. On the east side of Guardians Trail by shrubs, about 150 yards southwest of Ten Mile House Road 407 Comment
  UCLA64433  Lepechinia calycina A. A. Heller 1915-5-28 11906 Butte Near the upper limit of the digger pine in the Sierra foothills. Comment
  CAS-BOT-BC88736  Lepidium appelianum J. D. Jokerst; R. A. Schlising 1982-6-4 4287 Butte North of Oroville and north of Jarbo Gap along Highway 70 above Feather River Canyon. Comment
  CHSC49830  Lepidium campestre Vernon Oswald 1990-4-4 4146 Butte Vinton Gulch access to the West Branch of Lake Oroville, ca. 0.5 mi (air) north of Cherokee. Near the streamlet draining into the lake. 268 Comment
  CHSC90642  Lepidium didymum Lowell Ahart 2005-4-2 11685 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
  CHSC46258  Lepidium latipes var. latipes V. Oswald; L. Janeway 1989-4-17 3735 Butte Butte Sink Wildlife Area (w portion of Schohr Ranch), between the ranch road and Little Dry Creek near the s gate on Gridley-Colusa Hwy. 18 Comment
  SEINET11986394  Lepidium nitidum B. K. Madsen 1970-1 17 Butte along Wildwood Ave., ca 0.5 mi E of intersection of Wildwood Ave & Manzanita Ave, Upper Bidwell Park 85 Comment
  CHSC101676  Lepidium nitidum var. nitidum Lowell Ahart 2009-4-26 158608 -A Butte Upper Bidwell Park, on the west side of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 461 Comment
  JEPS98681  Lepidium pinnatifidum Lowell Ahart 2000-3-25 8325 Butte NE of Oroville Post Office (S side of the Ehmann Home) 36 Comment
  CHSC35012  Lepidium strictum R. E. Preston 1982-3-6 185 Butte Ca. 100 yds n of Horseshoe Lake, Upper Bidwell Park, Chico. 106 Comment
  SEINET10874435  Lepidium strictum Lowell Ahart 1983-4-10 Ahart 3929 Butte S of a large wash, 1/10 mi e of the large barn, ca. 1.4 mi ne of Hwy 99 and Pentz Rd jct, ca. 16 mi s of Chico. Valley Grassland; 65 m. 65 Comment
  CHSC25356  Lepidium virginicum var. pubescens M. P. Hayes 1977-4-22 10 Butte Along Hwy 70 ca 2.2 km sw of Butte-Plumas county line, ca 23 km nw of Paradise. 485 Comment
  CDA32437  Leptochloa fascicularis L. Ahart 2000-5-18 8372 Butte On the bottom of the Clay Pit, about 1/8 mile west of the Oroville Airport and Larkin Road, about 4 1/2 miles (air) southwest of Oroville. Comment
  CHSC118871  Leptochloa fascicularis D. G. Kelch 2009-10-8 09 .663 Butte West of Lemoore, east of Lemoore NAS (Navel Air Station). Jackson Avenue, 1 kilometer east of Avenal Cutoff Road, south of Highway 198. Along river channel. 61 Comment
  CAS-BOT-BC273950  Leptochloa fusca subsp. fascicularis Herbert L. Mason 1945-9-19 12730 Butte Gray Lodge Game Refuge, northwest of Pennington Comment
  CAS-BOT-BC273951  Leptochloa fusca subsp. fascicularis E. M. Johnston 1915-1-1 s.n. Butte Biggs Comment
  SEINET10588903  Leptochloa fusca subsp. fascicularis Lowell Ahart 1986-11-14 Ahart 5480 Butte On dry red gravelly soil, on the bottom of a pond, about 1/10 mile south of the clay burrow for Oroville Dam, 1/4 mile east of Larkin Road about 6 miles southwest of Oroville. Valley grassland. 37 Comment
  JEPS110445  Leptochloa fusca subsp. uninervia Lowell Ahart 2005-12-11 12517 Butte On the sides of small ditches, on the Rice Experiment Station, between the Main Ditch and Stine Lateral, on the north side of Hamilton Road, about 1/4 mile east of Riceton Highway, about 2 1/4 miles (air) east of Biggs 30 Comment
  CHSC31826  Leptosiphon bicolor L. Ahart 1974-4-11 367 Butte Peter Ahart Ranch, Honcut. 45 Comment
  JEPS122143  Leptosiphon bicolor Lowell Ahart 2014-5-2 19435 Butte Along the trail north side of Beatson Hollow, about 1 1/2 miles southwest of the Improved Parking Area and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  CHSC45457  Leptosiphon bolanderi Lowell Ahart 1980-6-1 2363 Butte On the east side of Kunkle Reservoir, about 2 miles south-east of Paradise. 518 Comment
  CHSC26732  Leptosiphon filipes M. S. Taylor; M. Hayes 1978-4-14 1561 Butte On e side of Williams Rd, ca. 1/4 mi n of Pentz Rd, on Butte College campus, ca. 15 mi s of Chico. 30 Comment
  CHSC41368  Leptosiphon filipes B. Castro 1982-4-21 26 Butte Vernal pool area, 0.3 mi w of jct with Hwy 99 on Broyles Rd, ca 10 mi nw of Chico. 60 Comment
  CHSC58937  Leptosiphon harknessii Lowell Ahart 1992-7-29 6887 Butte Near Coon Hollow Creek, about 1 mile north-east of the Carr Mine, about 3/4 mile north-west of Lotts Lake. 1798 Comment
  CHSC3523  Leptosiphon parviflorus John Francis 1966-4-23 128 Butte In pasture, Table Mt. Comment
  CHSC28735  Lessingia nana Robert Schlising 1979-10-4 3492 Butte Old archery range in Bidwell Park, Chico, just e of lake. Comment
  JEPS13266  Lessingia nemaclada Rimo Bacigalupi with G. T. Robbins 1955-7-15 5305 Butte about 5 mi below and sw Paradise (along Chico-Paradise Road); rim of Butte Creek Canyon 304 Comment
  CAS-BOT-BC341780  Lessingia nemaclada Lowell Ahart 1979-9-25 s.n. Butte 1/2 mile north-east of Oregon City 400 Comment
  RSA126788  Lessingia virgata J. E. Sowder 1933-6-15 85 Butte 1 mile west of Tres Vias 46 Comment
  SEINET10449275  Leucothoe davisiae Mary Susan Taylor 1982-6-24 Taylor 4744 Butte T23N R4E ne/nw sec 13. Pulga SW quad. Rag Dump 5, ca. 2 mi n of Flea Mt, ca. 10 mi n of Jarbo Gap on Hwy 70. Elev ca. 3800 ft. 1158 Comment
  UCD101649  Lewisia rediviva Clyde L. Elmore 1962-4-8 27 Butte 100 feet south of Table Mountain road, northeast of Oroville. 365 Comment
  SEINET10968804  Lilaea scilloides Mary Susan Taylor 1980-5-31 Taylor 2772 Butte T22N R4E sw sec 31. Kunkle Reservoir, on E side of Pentz-Magalia Hwy, ca. 2 mi SE of Paradise. With R.A. Schlising and L. Ahart. 442 Comment
  CHSC2291  Lilium humboldtii V. Holt 1935-7-1 Butte De Sabla. ... Field redacted by CHSC, contact the data manager for more information 762 Comment
  UC119796  Lilium pardalinum Mrs. R. M. Austin Jul 1896 10 Butte Colby Comment
  CHSC49658  Lilium pardalinum subsp. shastense Vernon Oswald 1983-7-6 827 Butte Near Humboldt Rd. 3.4 mi n-e of Butte Meadows. 1432 Comment
  CAS-BOT-BC133045  Lilium washingtonianum subsp. washingtonianum Albert M. Vollmer; Ira L. Wiggins 1940-7-6 10 Butte About 1/2 mile west of Chaparral 1554 Comment
  JEPS19590  Limnanthes alba Harry A. Dutton 1921-4-25 Butte sw Oroville Comment
  SEINET12183586  Limnanthes alba E. L. Knight 1988-1 16 Butte Small clustered population, ca 100 ft w of Ceanothus Road and ca 1 m n of East Avenue, in N. Chico 58 Comment
  UC1609426  Limnanthes alba subsp. alba Lowell Ahart 1993-5-17 6951 Butte about 1 1/2 mi n and 3 mi e Honcut (w side of Dunstone Rd, about 12 mi se of Oroville) 60 Comment
  SEINET12183045  Limnanthes douglasii K. E. Warwick 1978-1 6 Butte ca 20 m N of Skyway (Rd.), .5 km e of intersection of Skyway and Notre Dame Blvd., Chico Comment
  CHSC30383  Limnanthes douglasii subsp. nivea J. D. Jokerst 1979-3-20 1147 Butte Around the edges of vernal pools and creeks. Top of North Table Mt., ca .5 mi N of the Jct of Cherokee Rd and the E edge of the Mt. 396 Comment
  CHSC36137  Limnanthes douglasii subsp. nivea Linyi Maslin 1981-4-1 14 Butte Near water. North Table Mountain, ca. 5 km n of Oroville. 390 Comment
  CHSC12114  Limnanthes douglasii subsp. rosea M. F. Smith 1972-3-7 3 Butte On Skyway about 500 ft. east of Notre Dame Ave. 60 Comment
  CHSC36134  Limnanthes douglasii subsp. rosea Greg C. Halcomb 1978-3-14 2 Butte Ca. 1 mi e of Chico at intersection of Bruce Rd. and Skyway Rd. and 100 yds wnw of Bruce Rd. 70 Comment
  RSA614435  Limnanthes douglasii subsp. rosea K. L. Chambers 1962-4-21 2113 Butte Hwy. 99E, 11.6 mi, N. of its junction with Hwy. 32 in Chico. Comment
  CAS-BOT-BC45929  Limnanthes floccosa subsp. californica A. A. Heller 1914-4-3 11261 Butte 8 miles north of Oroville Comment
  CHSC102546  Limnanthes floccosa subsp. californica Elena Gregg 2010-3-31 Butte Northern Sacramento Valley. Near the base of the foothills in-between where Wookey road and Munjar Road terminate. 106 Comment
  CHSC115336  Limosella acaulis Lowell Ahart 2015-4-24 20068 Butte Normal size plants, on damp bare soil, bottom of a large duck field. 19 Comment
  SEINET12329568  Linanthus ciliatus L. Ahart, Ahart, P. 1984-1 4645 Butte about 1 mi NE of the West Branch Bridge, ca 2 mi S of Old Yankee Hill, ca 16 mi NE of Oroville 450 Comment
  RSA754581  Linanthus filipes L. Ahart 2009-4-22 15586 Butte W side of Guardians Trail, about 100 yards N of Pine Trail, Upper Bidwell Park, W of the intersection of Highway 32 and Ten Mile House Road, about 10 miles NE of Chico. 382 Comment
  SEINET12319548  Linanthus filipes Unknown 1978-1 2 Butte 3 mi NE of Butte Creek bridge between Chico and Paradise Comment
  SEINET7073627  Linanthus parviflorus 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
  CHSC112538  Lindernia dubia var. anagallidea B. Castro 2014-7-16 2033 Butte Sycamore Creek Sediment Removal Project: Revegetation Phase. Sacramento Valley. At N end of Chico, just S of the Chico Airport, along Sycamore Creek, ca 50 ft downstream (W) of its crossing under the Cohasset Hwy bridge. 54 Comment
  CHSC116286  Lindernia dubia var. anagallidea Lowell Ahart 2015-10-26 20609 Butte Strand of Lake Oroville, on west side of West Branch of Feather River, about 1 mile (air) southeast of Knunckle Reservoir, about 5 miles (air) southeast of Paradise. 207 Comment
  CHSC42116  Lindernia dubia var. anagallidea Lowell Ahart 1986-11-9 5444 Butte About 1/10 mile south of the clay burrow for Oroville Dam, 1/4 mile east of Larkin Road, about 6 miles south-west of Oroville. 36 Comment
  JEPS120849  Lindernia dubia var. anagallidea Lowell Ahart 2013-7-9 18832 Butte South side of North Honcut Creek, west of the steel power line, about 2 air miles northeast of Honcut, about 13 air miles southeast of Oroville. Comment
  UC2026863  Liquidambar styraciflua Lowell Ahart, Susan Bazell, Josephine Guardino, Wes Dempsey 2012-6-28 18233 Butte On the northeast side of Sycamore Pool, Lower Bidwell Park, Chico. Comment
  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-BC430879  Lithophragma bolanderi Lowell Ahart 1980-5-29 2357 Butte 5 miles north-east of Mountain House 1100 Comment
  CAS-BOT-BC432269  Lithophragma campanulatum A. A. Heller 1915-6-10 11955 Butte Little Summit in the Sierra Nevada 1371 Comment
  CHSC6294  Lithophragma parviflorum L. Lyons 1967-4-27 Butte On south side of Rcihardson's Spring Rd. 1.8 mi e of entrance on n Cohasset Rd. 3.5 mi from Chico. 76 Comment
  RSA176430  Lithophragma parviflorum var. trifoliatum A. A. Heller 1921-3-27 13531 Butte Along Butte Creek E of Chico near the Honey Run grade bridge. Comment
  SEINET10483079  Lithophragma trifoliatum Mary Susan Taylor 1980-4-6 Taylor 2435 Butte T8N R5E ec border sec 3. Junction of Rocky Honcut Creek and Swedes Flat Rd, ca. 2 mi E of Oroville-Bangor Hwy, ca. 10 mi SE of Oroville. With L. Ahart & J.D. Jokerst. 366 Comment
  SEINET10497330  Lithospermum californicum Mary Susan Taylor 1981-4-8 Taylor 3511 Butte T22N R4E se sec 1, Pulga SW quad. On dry serpentine embankment, w side of Ponderosa Way, along Rocky Ridge, ca. 5.5 mi n of its jct with Hwy 70 at Jarbo Gap, ca. 20 air mi n of Oroville. 2900 ft. 884 Comment
  CHSC33670  Lolium multiflorum L. Ahart 1981-5-24 2834 Butte Wash in one of the pasture fields on Peter Ahart Ranch, 2 mi e of Honcut. 50 Comment
  CHSC49556  Lolium temulentum var. leptochaeton Vernon Oswald 1984-6-3 1253 Butte Sacramento River, ca. 0.5 mi downstream from the mouth of Stony Creek. On a sandbar on the edge of the river. 39 Comment
  UC765836  Lomatium caruifolium var. denticulatum Robert F. Hoover 1936-5-21 1157 Butte 2 mi. n. Chico 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
  SEINET10972965  Lomatium dasycarpum subsp. tomentosum Mary Susan Taylor 1980-5-24 Taylor 2742 Butte Peter Ahart Ranch, Honcut. 50 Comment
  UC1532355  Lomatium dissectum var. multifidum Vernon Oswald 1985-5-20 2033 Butte between Chico and Forest Ranch (w. side of Hwy. 32 at Crown Point Rd.) 597 Comment
  CHSC42477  Lomatium macrocarpum Lowell Ahart 1987-5-11 5616 Butte South of the Forbestown Ditch, about 2 1/2 miles north-east of Forbestown. 868 Comment
  CHSC96573  Lomatium marginatum var. marginatum L. P. Janeway 2006-5-14 8596 Butte Northern High Sierra Nevada. Upper part of open serpentine slope just west of Jordan Hill Road; 0.9 km east of Sawmill Peak lookout. 953 Comment
  JEPS110244  Lomatium marginatum var. marginatum Lowell Ahart 2006-5-8 12606 Butte North of Phantom Falls, about 3/4 mile northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 384 Comment
  CHSC29759  Lomatium utriculatum J. D. Jokerst 1980-4-21 631 Butte Top of North Table Mt., ca. 1.0 mi N of Cherokee Rd., at water falls of North branch of Coal Cr. 381 Comment
  CHSC29999  Lomatium utriculatum L. Ahart 1980-4-21 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC96803  Lomatium utriculatum Lowell Ahart 2007-4-30 13712 Butte On the west side of Jordan Hill Road, about 2 1/2 miles northwest of Concow Creek, about 2 1/2 miles northwest of Concow Reservoir. 618 Comment
  POM78230  Lomatium vaginatum C. C. Bruce 1897-03 2053 Butte Little Chico Comment
  UC190774  Lonicera conjugialis Mrs. R. M. Austin July 1896 Butte Colby Comment
  CHSC48017  Lonicera hispidula Vernon Oswald; M. S. Taylor 1985-5-30 1790 Butte Four Trees Rd. 0.5 mi E of Hwy 70. 536 Comment
  UCD137320  Lonicera hispidula E. D. Phelps 1930-9-23 2150 Butte Pulga. Comment
  CHSC99544  Lonicera interrupta L. P. Janeway 2008-5-15 9409 Butte Cascade Range Foothills. Near the ridge top, about 25 m northwest of Hwy 32 about 4.2 air km south-southwest of Forest Ranch. 570 Comment
  CAS-BOT-BC200895  Lotus Marcus E. Jones 1911-6-26 s.n. Butte Oroville Comment
  CHSC44393  Lotus corniculatus Lowell Ahart 1988-6-21 6047 Butte Along the edge of the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 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
  JEPS117151  Lotus humistratus Lowell Ahart 2010-4-30 16594 Butte Below rim and above cliffs, north side of disk golf area, on a ridge about 250 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 360 Comment
  JEPS98454  Lotus humistratus Lowell Ahart 2000-5-31 8424 Butte 3 mi SE of Paradise (200 yds E of where Kunkle Creek enters Lake Oroville, E of Kunkle Power House) 335 Comment
  SEINET3523639 Image available Lotus incanus A. A. Heller 1919-5-18 13172 Butte Stirling 1074 Comment
  CDA34633  Lotus purshianus var. purshianus L. Ahart 2009-6-19 15930 Butte On the north side of Ten Mile House Road, Upper Bidwell Park, about 3/8 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. Comment
  UC862227  Lotus purshianus var. purshianus A. A. Heller 1917-7-26 12845 Butte Butte Meadows 1402 Comment
  UC1562315  Lotus stipularis Vernon Oswald and Lowell Ahart 1990-6-27 4334 Butte 0.5 mi n Coyote Gap (Four Trees Rd) 1341 Comment
  CHSC33524  Ludwigia palustris R. A. Schlising 1981-7-11 4133 Butte NE of Oroville and NW of Brush Creek, near French Creek Road crossing of French Creek. 613 Comment
  JEPS115647  Ludwigia palustris Lowell Ahart 2009-8-13 16275 Butte In the channel about 100 yards east of the diversion structure that controls Mud Creek diversion and Lindo Channel, northeast of Hooker Oak, Upper Bidwell Park, Chico 68 Comment
  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
  CHSC28457  Ludwigia peploides R. A. Schlising; R. Banchero 1979-9-23 3491 Butte SW of Chico and E of Ordbend, at W margin of county at Sacramento River and Ord Ferry Road; in slough. Comment
  CAS-BOT-BC198300  Lupinus John Thomas Howell 1976-4-1 51520 Butte Table Mountain, 4-5 miles north of Oroville 152 Comment
  CAS-BOT-BC198301  Lupinus John Thomas Howell 1976-4-1 51521 Butte Table Mountain, 4-5 miles north of Oroville 152 Comment
  CAS-BOT-BC198299  Lupinus John Thomas Howell 1976-4-2 51555 Butte About 2 miles southeast of Chico. 60 Comment
  CHSC84888  Lupinus affinis R. D. Fischer; Jenny Marr 2003-4-29 4 Butte Upper Bidwell Park, east side of Big Chico Creek. Located at western end of mdw and adjacent road/trail. Northern most patch approx 300 ft south of gated end of park property. 231 Comment
  CHSC35977  Lupinus albicaulis M. S. Taylor 1982-6-24 4747 Butte On serpentine on Rocky Ridge, both sides of Ponderosa Way (Rim Rd), 6.1 mi n of Jarbo Gap on Hwy 70. 822 Comment
  RSA0036364  Lupinus albicaulis Daisie Huang 2006-8-3 06080306 Butte Butte. 1327 Comment
  CHSC34692  Lupinus albicaulis var. shastensis M. S. Taylor 1981-5-14 3716 Butte N side of 23N00.2, 2.9 mi sw of Merrimac on Oroville-Quincy Hwy. 975 Comment
  UC600396  Lupinus albicaulis var. shastensis H. F. Copeland 1931-6-10 Butte Jonesville Comment
  SEINET12161341  Lupinus albifrons T. E. Lewis 1978-1 5 Butte on Magalia Hwy, E side of rd ca 50 m S of Pent Rd jct, ca 11km S of Paradise 270 Comment
  SEINET10452024  Lupinus apertus Mary Susan Taylor 1981-5-21 Taylor 3781 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
  CHSC31938  Lupinus arbustus J. D. Jokerst; L. Ahart, M. S. Taylor 1980-8-2 1031 Butte Humboldt Peak, ca. 1/4 mi. below and E of summit adjacent to large mudlflow, northern most portion of county. 1828 Comment
  POM26882  Lupinus arbustus subsp. silvicola C. C. Bruce 1898-05 2458 Butte Forest Ranch Comment
  SEINET10484739  Lupinus arbustus subsp. silvicola Edwin B. Copel 1930-6-29 Copeland 421 Butte Common in open pine woods 1600 Comment
  CHSC108960  Lupinus bicolor var. pipersmithii Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17865 Butte On the south side of the paved road, east of the Deer Pen, between Tables 12 and 13, Lower Bidwell Park, Chico. 65 Comment
  CHSC106867  Lupinus bicolor var. tridentatus Lowell Ahart 2011-5-1 17340 Butte North side of the intersection of Georgia Pacific Way and Feather River Blvd, about 100 yards east of Highway 70, about 1 mile south of Oroville. 42 Comment
  POM27145  Lupinus latifolius subsp. longipes C. C. Bruce 1898-05 2437 Butte Doe mill Comment
  CHSC78077  Lupinus microcarpus var. densiflorus Caleb E. Casey 1999-5-13 Butte Bear Hole, Upper Bidwell Park. Found on South side of Chico creek. 121 Comment
  UC204550  Lupinus nanus A. A. Heller 1914-5-8 11378 Butte Clear Creek-Paradise grade Comment
  UC725745  Lupinus nanus A. A. Heller 1939-3-23 15355 Butte Berkeley Olive Orchard Comment
  UCSB63593  Lupinus nanus Hill, Leonard 1991-3-6 Butte Upper Bidwell Park, Chico; from Manzanita Ave., E 4 mi. on Wildwood Ave., S of road, near cliff edge 106 Comment
  SEINET7040276 Image available Lupinus pachylobus A. G. Vestal 1963-5-9 s.n. Butte North of Oroville on Alternate 40 [presently Route 70]. Oroville Quadrangle UTM Zone 10, 620674mE, 4386722mN. Comment
  CHSC83885  Lupinus polycarpus Lowell Ahart 2003-4-8 10038 Butte Pasture field, about 400 yards north of the falls on Coon Hollow, about 1/2 mile west of the iron gate and fence, west of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 331 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
  RSA0058986  Luzula cascadensis Barbara L. Wilson, Lowell Ahart, Lawrence Janeway, Peter F. Zika 2011-8-5 16761 Butte Along Mooreville Ridge Road (Forest Service Road 20N09) near junction with Pinkard Creek Road, above Lost Creek Reservoir. 1149 Comment
  UC1594729  Luzula comosa var. laxa Lowell Ahart 1992-8-26 6845 Butte About 1/2 mile north of the Carr Mine about 2 (air) miles south of Snow Mountain 1767 Comment
  CHSC115462  Luzula macrantha Peter F. Zika 2011-7-6 25533 Butte Mooreville Ridge Road, 0.5 road miles N of dam on Lost Creek Reservoir, northern Sierra Nevada Highlands. 1020 Comment
  CHSC44528  Luzula macrantha Lowell Ahart 1988-3-27 5940 Butte West of the deep road cut, about 1/10 mile north of the bridge across the North Fork of the Feather River, about 2 miles south-east of Jarbo Gap. 335 Comment
  CAS-BOT-BC441205  Luzula macrantha Lowell Ahart 1980-3-26 2066 Butte Peter Ahart Ranch, Honcut 50 Comment
  SEINET10472542  Luzula macrantha Mary Susan Taylor 1981-3-24 Taylor 3435 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
  CHSC43003  Luzula parviflora L. P. Janeway 1987-6-19 2233 Butte Sly Creek, 2.1 mi from the Challenge-LaPorte Rd on the rd to the SE side of Sly Cr Reservoir. 1097 Comment
  JEPS120935  Luzula subsessilis Lowell Ahart 2013-5-18 18698 Butte About 100 yards E of the intersection of Forbestown Road and Black Bart Road, about 3.25 air miles SW of Forbestown. Comment
  SEINET10816702  Luzula subsessilis Peter F. Zika 2010-5-14 Zika 24805 Butte NW slope of Mt. Pisgah, SE of Eugene. 275 Comment
  CDA30014  Lycium barbarum L. Ahart 2009-7-4 16000 Butte At parking lot 32, Gray Lodge Waterfowl Management Area, ~ 6 air miles SW of Gridley. Comment
  CHSC94609  Lycopus americanus Lowell Ahart 2006-9-13 13320 Butte South edge of the North Fork of the Feather River, about 50 yards west of the Cresta Power House, north side of Highway 70, about 2 3/4 miles northeast of Pulga, about 23 miles (air) northeast of Oroville. 437 Comment
  UCD124961  Lycopus asper E. M. Johnston 1915-1 W 136 J Butte Biggs. Comment
  JEPS45973  Lythrum hyssopifolia H. A. Dutton 1921-1 Butte Chico at the Hooker Oak Chico; , Hooker Oak Comment
  CHSC46975  Lythrum portula Vernon H. Oswald 1989-9-27 4019 Butte Paradise Lake ca. 3 mi n of Magalia. 774 Comment
  UCD102941  Lythrum salicaria Carl M. Wick 1975-8-15 s.n. Butte Oroville. Comment
  CHSC54341  Lythrum tribracteatum Lowell Ahart 1991-5-20 6655 Butte On the north side of Rutherford Road, Gray Lodge Waterfowl Management Area, about 1/4 mile west of Pennington Road, about 10 miles south-west of Gridley. 19 Comment
  CAS-BOT-BC342718  Madia elegans Mrs. C. C. Bruce 1897-4-1 1986 Butte Forest - Ranch Comment
  JEPS115874  Madia elegans Lowell Ahart 2009-7-9 16015 Butte On the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road,Upper Bidwell Park, about 1/4 mile west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 203 Comment
  SEINET11601352 Image available Madia elegans A. A. Heller, H. E. Brown 1902-5-10 5518 Butte Berry Canyon (near Clear Creek) Comment
  CHSC52002  Madia elegans subsp. densifolia B. Castro 1987-9-25 228 Butte Fernandez Grant area. Field at jcn Biggs East Rd and Dos Rios Rd at e side of East Biggs. 33 Comment
  SEINET10938055  Madia elegans subsp. densifolia Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4116 Butte T20N R8E ne sec 9. Along Ponderosa Way (Big Ridge Rd), ca. 2 mi se of the jct with Oroville-Quincy Hwy, ca. 15 mi ne of Oroville. Foothill Woodland; 500 m. 500 Comment
  JEPS104323  Madia elegans subsp. elegans Lowell Ahart 2003-6-30 10321 Butte North of the small stream, on the e side of Ponderosa Way, ca 2 1/2 mi (by road) sw of the Ponderosa Dam, ca 2 mi (air) nw of Forbestown. 578 Comment
  POM56168  Madia elegans subsp. vernalis A. A. Heller, H. E. Brown 1902-5-10 5518 Butte Berry Canyon (Near Clear Creek). Comment
  CHSC43621  Madia exigua Vernon Oswald 1984-5-23 1200 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
  RSA726308  Madia exigua L. Ahart 2007-6-12 14071 Butte 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
  CHSC111981  Madia gracilis Lowell Ahart 2012-6-2 18129 Butte Along sides of Truex Rd., w. of intersection of Truex Rd. and Trevor Rd., about 1/8 mi. nw of West Branch Bridge across dLake Oroville.. 286 Comment
  CHSC113512  Madia gracilis Lowell Ahart 2014-7-7 19566 Butte About 5 yards east of the Skyway, about one-mile north of Stirling City. 1142 Comment
  CHSC34056  Madia gracilis L. Ahart; M. S. Taylor 1981-8-15 3037 Butte Near the dirt road on n side of Snag Lake, ca. 10 mi n of Inskip. 1500 Comment
  RSA691010  Madia gracilis subsp. gracilis L. Ahart 2003-6-30 10323 -A Butte On the southeast side of Ponderosa Way, about 2.5 miles (by road) southwest of the Ponderosa Dam, about 2 miles (air) northwest of Forbestown 578 Comment
  UC1442609  Madia subspicata Lowell Ahart 1978-7-15 Butte near North Honcut Creek; Honcut, Peter Ahart Ranch 50 Comment
  CHSC108791  Magnolia Lowell Ahart; John Dittes, Josephine Guardino 2012-4-6 17810 Butte On the north side of Big Chico Creek, Lost Park in Bidwell Park, city of Chico. 60 Comment
  CHSC27984  Maianthemum racemosum M. S. Taylor 1978-7-18 1700 Butte On top of Humboldt Peak, at Humboldt Summit. 2158 Comment
  CAS-BOT-BC510728  Maianthemum racemosum subsp. amplexicaule A. A. Heller 1915-6-11 11968 Butte Chico Meadows in the Sierra Nevada 1219 Comment
  CAS-BOT-BC510730  Maianthemum racemosum subsp. amplexicaule H. F. Copeland 1916-11-29 1236 Butte Woods near Butte Creek. Comment
  CAS-BOT-BC510731  Maianthemum racemosum subsp. amplexicaule E. B. Copeland 1931-6-16 616 Butte Jonesville, at the Summit 640 Comment
  JEPS121915  Maianthemum stellatum Lowell Ahart 2014-7-10 19620 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  UC572335  Malacothrix floccifera P. L. Johannsen 1936-7-22 962 Butte 1.5 mi sw Head of Bottle Creek; Lassen National Forest, Paynes Creek Quad. 1432 Comment
  CAS-BOT-BC347375  Malacothrix floccifera L. P. Janeway; Perrie Cobb; Linnea Hanson 1993-7-1 4411 Butte Plumas National Forest, Oroville Ranger District. Along French Creek Road 2.6 mi northeast of Stanwood Saddle and Oroville-Quincy Hwy. 902 Comment
  CAS-BOT-BC347382  Malacothrix floccifera Lowell Ahart 1984-6-8 4670 Butte On the north side of the Ponderosa Res., about 2 miles north of Forbestown 450 Comment
  POM85083  Malva nicaeensis C. C. Bruce 1897-04 1919 Butte [name of locality illegible] Comment
  RSA440948  Marah fabacea K. M. Stocking 1947-4-17 29 Butte 9.6 miles from Paradise on Oroville road. 76 Comment
  CHSC8557  Marah fabacea var. agrestis M. MacArthur 1968-6-18 211 Butte E side Big Chico Creek and just S of bridge by PSA bld., Chico State College. 60 Comment
  CHSC42547  Marah watsonii Lowell Ahart 1987-5-12 5648 Butte South of Lumpkin Ridge Road, 1 1/2 miles north-east of Camp 18, about 8 miles north-east of Feather Falls. 1280 Comment
  CHSC46486  Marah watsonii Lowell Ahart 1980-4-7 2077 Butte South of the bridge across Rocky Honcut Creek, along Swedes Flat Road, north of Bangor. 292 Comment
  UC1609423  Marrubium vulgare Lowell Ahart 1993-6-20 6976 Butte at Camp 18 Camp 18 1158 Comment
  CAS-BOT-BC67813  Marsilea vestita Lowell Ahart 1981-8-31 3059 Butte Sierra Nevada - Wyandotte Lake, E of Oroville 450 Comment
  CHSC8738  Marsilea vestita S. Chulasmai 1966-4-15 6 Butte Keefer Roadside. Comment
  SEINET10530352  Marsilea vestita Mary Susan Taylor 1980-6-29 Taylor 2989 Butte T23N R1E nw sec 20 Richardson Spring quad; ca. 1 mi E of Meridian Rd, ca. 4 mi N of Chico; Valley Grassland. 70 Comment
  JEPS113778  Marsilea vestita subsp. vestita Lowell Ahart 2007-8-19 14483 Butte About 2 1/4 miles (air) southeast of Honcut, about 13 miles (air) southeast of Oroville 49 Comment
  UCD169295  Marsilea vestita subsp. vestita Lowell Ahart 2002-5-15 9659 Butte Gray Lodge State Wildfire Management Area, about 4 miles (air) southwest of Gridley. About 100 yards east of Parking Lot 10. 22 Comment
  UCR237320  Matricaria matricarioides George K. Helmkamp, E. A. Helmkamp 2012-4-14 18740 Butte Northern Sacramento Valley, Middle Honcut Road, 1.5 miles east of CA-70, ESE of Gridley 18 Comment
  SEINET10938065  Matricaria matricarioides Mary Susan Taylor 1982-4-28 Taylor 4347 Butte T17N R1E se/s sec 13. Pennington quad. Graylodge Waterfowl Refuge, n side of Rutherford Rd, 1/8 mi w of Pennington Rd, ca. 12 mi sw of Gridley. 70 ft. 21 Comment
  POM97345  Meconella californica C. C. Bruce 1897-03 2018 Butte Foothills near Chico Comment
  JEPS87777  Medicago arabica Lowell Ahart 1994-3-30 7278 Butte Oregon City School House Oroville (garden area at ne corner, about 7 mi n of Oroville); Oregon City 365 Comment
  RSA755638  Medicago arabica L. Ahart 2009-5-15 15712 Butte On the east bank of Big Chico Creek, on the west side of Ten Mile House Road, Upper Bidwell Park, about 3/4 air mile west of Highway 32, about 10 miles northeast of Chico. 234 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
  JEPS115844  Medicago polymorpha Lowell Ahart 2009-4-22 15576 Butte West side of Guardians Trail, along the small drainage just north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  CHSC61542  Melica aristata Lowell Ahart 1993-6-26 7022 Butte On the east side of the dirt road, Mooreville Ridge, about 1 mile west of the Lost Creek Reservoir. 1188 Comment
  CHSC74167  Melica aristata B. Castro; L. Gehrung 1998-8-19 823 Butte Ca 4.5 air mi NNE of Brush Creek, ca 1 mi SE of Rogers Cow Camp, 100-300 ft W of Oro-Quincy Hwy on top and upper sides of ridge E of Get-Up-and-Get Creek. 1213 Comment
  UC1609072  Melica aristata Lowell Ahart 1993-6-26 7022 Butte about 1 mi w Lost Creek Reservoir (Mooreville Ridge, on e side of dirt road); Mooreville Ridge 1188 Comment
  CAS-BOT-BC269375  Melica californica Lowell Ahart 1985-5-15 4974 Butte West of Lunt Road, about 1/2 mile north of the intersection of Lunt Road and Highway 70, north of Yankee Hill 550 Comment
  CHSC8255  Melica californica Dave Isle 1969-4-10 295 Butte In meadow above the N. shore of Horseshoe Lake in Upper Bidwell Park E. of Chico. 59 Comment
  UCD87019  Melica californica A. A. Heller 1918-5-5 13012 Butte Butte county. Near Magalia. Comment
  CHSC36067  Melica geyeri J. D. Jokerst; R. A. Schlising 1982-6-4 1586 Butte N of Concow Basin. 853 Comment
  CAS-BOT-BC281299  Melica harfordii Lowell Ahart 1984-6-10 4713 Butte Along the Forbestown Diversion Dam, about 2 miles SW of the Forbestown Diversion Dam, NE of Forbestown 700 Comment
  CAS-BOT-BC281300  Melica harfordii Lowell Ahart 1983-7-24 4216 Butte On the road cutbank at the Forbestown Res., ca 5 miles NE of Forbestown 450 Comment
  CAS-BOT-BC281301  Melica harfordii Lowell Ahart 1983-7-29 4231 Butte Along the dirt road, ca 0.25 mile W of Milsap Bar, ca 25 miles NE of Oroville 500 Comment
  CHSC30544  Melica torreyana J. D. Jokerst 1980-3-23 490 Butte Along edges of old Cherokee Flume. 0.5 mi W of S end of Bridge on Hwy 70 over W Branch of Feather River. 10 mi N of Oroville. Comment
  CHSC20542  Melilotus albus M. S. Taylor 1975-6-4 830 Butte Abundant on s side of Big Chico Creek at Five Mile, Upper Bidwell Park, Chico. 76 Comment
  CHSC31836  Melilotus albus L. Ahart 1978-7-15 1788 Butte Along edges of North Honcut Creek, Peter Ahart Ranch, Honcut. 50 Comment
  CHSC111133  Melissa officinalis Lowell Ahart 2012-6-14 18195 Butte Dry high bank on the north side of Big Chico Creek, west of the foot bridge across Big Chico Creek, about 100 yards east of Mangrove Avenue, Annie's Glen, Lower Bidwell Park, Chico. 62 Comment
  CHSC97780  Melissa officinalis L. P. Janeway 2007-8-12 9157 Butte Northern High Sierra Nevada. Along old Berry Creek Road 2.0 road km north of Oroville-Quincy Hwy; 1.4 air km south of the mouth of Berry Creek at North Fork Feather River (Lake Oroville). 384 Comment
  CHSC58924  Mentha canadensis Lowell Ahart 1992-7-23 6826 Butte Growing on the north side of Thermolito Diversion Pool, near Longs Bar Monument, Lake Oroville Recreation Area, about 2 miles west of Oroville Dam. 76 Comment
  CHSC96954  Mentha pulegium Lowell Ahart 2007-7-8 14274 Butte On the north 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. 45 Comment
  JEPS119563  Mentha spicata Lowell Ahart 2012-6-28 18239 Butte On the north side of Big Chico Creek, east of Sycamore Pool, Lower Bidwell Park, Chico. Comment
  CHSC46454  Mentzelia dispersa V. Oswald; L. Ahart 1989-6-27 3817 Butte Ridge east of Scotts John Creek, ca. 3.3 mi (air) e of Jonesville. 2042 Comment
  RSA4233  Mentzelia dispersa E. B. Copeland 1929-7-19 s.n. Butte Jonesville. Along Butte Creek. 473 Comment
  UC398935  Mentzelia dispersa E. B. Copeland 1929-7-19 385 Butte along Butte Creek; Jonseville 1550 Comment
  CAS-BOT-BC428763  Micranthes californica Mrs. J. H. Morrison 1932-3-13 s.n. Butte Durham Comment
  CHSC30798  Micranthes californica M. S. Taylor; J. D. Jokerst 1980-4-18 2517 Butte Along creek w side of Humbug Rd, ca. 1 mi s of Nimshew. 609 Comment
  CHSC45982  Micranthes integrifolia Lowell Ahart 1975-3-3 701 Butte Pasture fields, Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CAS-BOT-BC429199  Micranthes oregana E. B. Copeland 1929-7-20 369 Butte Jonesville 1550 Comment
  CHSC24697  Micropus californicus var. californicus L. Casto 1976-4-28 20 Butte 50 yd s of Skyway, ca. 4 mi e of intersection of Hwy 99 and Skyway. 182 Comment
  CHSC33350  Micropus californicus var. californicus R. M. Winchell 1980-4-17 3 Butte Covered Bridge along Little Butte Creek. Comment
  UCD80102  Microseris acuminata CNPS SN Foothill Team 2005-4-13 SNFN 0078 b Butte City of Chico, Doe Mill Meadowfoam Preserve, located at the east end of Warfield street, east side of the creek diversion between the diversion and the creek, ~85 m south of the Preserve gate entrance. 82 Comment
  UCD80103  Microseris acuminata CNPS SN Foothill Team 2005-4-15 SNFN 0081 b Butte City of Chico, Doe Mill Meadowfoam Preserve, ~50 m from the western boundary and ~70 m from the northern boundary. 85 Comment
  CHSC54378  Microseris douglasii subsp. douglasii M. Bailey 1991-4-19 572 Butte Butte College campus ca 1/4 mi n of Pentz Road and ca 300 ft e of Williams Road. 85 Comment
  SEINET10496809  Microsteris gracilis Mary Susan Taylor 1973-1 Taylor 60 Butte Upper Bidwell Park, Chico. Associates: Stipa pulchra, Lasthenia chrysostoma, Layia fremontii. 61 Comment
  HSC43116  Mimulus angustatus Maralyn O'Meara 1974-4-20 283 Butte Cherokee-Table Mtn. Rd., 1 mi. S of Cherokee 305 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
  POM43817  Mimulus bicolor R. M. Austin 1883-05 15 Butte Lomo. Comment
  RSA0119189  Mimulus breweri Lowell Ahart 2014-7-7 19590 Butte About 1/2 mile (air) north of Philbrook Reservoir. 1745 Comment
  SEINET10570207  Mimulus breweri Mary Susan Taylor 1978-7-19 Taylor 1775 Butte On E side of Upper Scotts John Road, ca. 3 mi N of its junction with Scotts John Road, ca. 7 mi E of Jonesville. 1890 Comment
  UC600644  Mimulus breweri H. F. Copeland 1937-6-11 Butte between Scotch John Creek and Willow Creek; Butte Creek Canyon Comment
  RSA309183  Mimulus glaucescens Robert F. Hoover 1936-5-21 1158 Butte 3 miles north of Chico Comment
  RSA32857  Mimulus glaucescens A. A. Heller 1938-5-4 s.n. Butte Near Covered Bridge over Butte Creek Comment
  UCSB63616  Mimulus glaucescens Griffiths, Troy 1988-3-15 Butte Vic. Salmon Hole; ca. 5 mi e of Chico Municipal Golf Course; Chico 121 Comment
  CHSC118862  Mimulus guttatus Christopher T. Ivey 2017-5-27 388 Butte Honeyrun Road, about 3 km NE of bridge crossing Butte Creek, wet meadow E side of road. 163 Comment
  POM5106  Mimulus guttatus E. B. Copeland 1903-5-2 3017 Butte Chico. Comment
  SEINET8340981  Mimulus guttatus G. R. Campbell 1950-6-8 15486 Butte 14 miles southeast of Paradise. Comment
  UCD96006  Mimulus kelloggii Dena Grossenbacher; Brian Green 2008-4-8 758 Butte About 0.5 miles west of main parking area at North Table Mountain Ecological Reserve located on Cherokee Road just south of junction with Derrick Road. 373 Comment
  RSA409258  Mimulus kelloggii J. H. Morrison 1932-5-30 s.n. Butte Durham. Comment
  UC660023  Mimulus layneae Lincoln Constance 1941-5-28 2828 Butte Magalia Sierra Nevada foothills, South Branch Feather River 487 Comment
  SEINET10863351  Mimulus moschatus Mary Susan Taylor 1975-8-31 Taylor 881 Butte Riparian Woodland, on Ernies Island in Butte Creek, ca. 50 ft S of Humboldt Rd, ca. 0.5 mi E of Butte Meadows. 1341 Comment
  RSA319367  Mimulus torreyi Patricia Wilder 1971-6-22 5175 Butte Paradise Lake, north of Paradise and Magalia off Coutelenc Road. West slope of the Sierra Nevada, Sacramento River drainage. 775 Comment
  JEPS86879  Mimulus tricolor David M. Thompson with Lowell Ahart 1988-3-22 849 Butte n Honcut (Peter Ahart Ranch (entrance 1.2 mi n of Honcut Store along Ahart Road), 1 mi e of ranch gate, then 0.5 mi n) 36 Comment
  RSA21489  Mimulus tricolor Carl B. Wolf 1937-5-14 8671 Butte Sacramento Valley; 5 miles W of Chico on Hamilton City Road. 46 Comment
  RSA717286  Mimulus tricolor L. Ahart 2005-5-28 11825 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. 67 Comment
  JEPS108746  Minuartia californica Lowell Ahart 2006-4-28 12550 Butte About 50 yards north of the rim of Beatson Hollow, about 120 yards south of the poor dirt road, about 1/8 mile southeast of the reservoir, about 2 1/8 miles by the dirt road northwest of the Iron Gate along Cherokee Road, North Table Mountain, about 7 mil 299 Comment
  RSA715728  Minuartia californica L. P. Janeway 2005-3-1 8341 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Rd. 1.8 km northeast of Bruce Road. 134 Comment
  SEINET7072730  Minuartia californica A. G. Vestal 1963-5-9 s.n. Butte About 14.2 miles southeast of Chico on Route 140. UTM Zone 10, 616438mE, 4383522mN. Coordinate datum: NAD 27.) Comment
  HSC43125  Minuartia californica Maralyn O'Meara 1974-4-20 278 Butte Along Pentz Rd. 300 yds. S of the intersection with Clark Rd. 76 Comment
  SEINET11930245  Minuartia californica D. G. Bendix 1978-1 3 Butte 5 m NE Skyway bridge over Butte Creek, 4.5 km ESE Chico Comment
  UCSC008596  Minuartia californica Randall Morgan 2008-4-1 4840 Butte Originally from Ahart Ranch Comment
  CHSC61721  Minuartia cismontana Mark D. Reiser 1992-4-17 17 Butte Meadow ca. yds sw of Vilas Rd., Cohasset Stage, ca. 8 mi ne of Chico Municipal Airport. 609 Comment
  CDA13863  Minuartia douglasii G. F. Hrusa, T. D. Wilfred 1997-5-7 13721 Butte Sierra Nevada; Serpentine outcrop on SSE slope above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. Comment
  SEINET6645727  Mollugo verticillata R. R. Halse 2006-8-2 6979 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  SEINET10899215  Mollugo verticillata Mary Susan Taylor 1978-9-8 Taylor 1884 Butte Along flood control slough, ca. 4 mi N of Chico, along Hwy 99. 61 Comment
  SEINET10498923  Monardella lanceolata Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4255 Butte T22N R7E sw sec 31. Ca. 3 mi e of Milsap Bar, ca. 25 mi ne of Oroville. Yellow Pine Forest; 1100 m. 1100 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
  CHSC52039  Monardella odoratissima B. Castro; L. P. Janeway, R. A. Schlising 1988-7-30 282 Butte Abundant near top of ridge se of Snow Mtn at top of sw-facing slope above Coon Hollow. 2072 Comment
  CAS-BOT-BC220233  Monardella sheltonii John Thomas Howell 1955-6-15 30481 Butte 6 miles from Paradise on road to Pentz 426 Comment
  JEPS107530  Monardella sheltonii Lowell Ahart 2005-7-12 12137 Butte On the west side of Encina Grade Road (Bloomer Hill Road), about 2 miles (air) southeast of Bloomer Hill, about 2 miles west of Oroville Quincy Highway 623 Comment
  JEPS87413  Monardella sheltonii Lowell Ahart 1993-7-6 7062 Butte about 1 air mi nw Lost Creek Reservoir Dam; Mooreville Ridge, Jackass Flat 1158 Comment
  CAS-BOT-BC318613  Monardella villosa subsp. subserrata Clare B. Hardham 1975-6-7 20442 Butte Lime Ridge N of Oroville (Magnolia Road). Comment
  UCD39222  Monochoria vaginalis Beecher Crampton 1957-9-17 4628 Butte 5 miles northwest of Biggs. Biggs Rice Experiment Station. Comment
  CHSC29390  Montia chamissoi Robert Schlising; R. Banchero 1980-6-2 3630 Butte 0.1 mi s of jct Humboldt Road and Skyway/Humbug Rd at Butte Meadows. 1341 Comment
  CHSC50333  Montia chamissoi Vernon Oswald 1990-5-17 4218 Butte Meadow near the headwaters of Concow Creek, on the west side of Concow Rd. ca. 0.5 mile south-southwest of Flea Valley. Common in a marshy area along the creek at the foot of the meadow. 1097 Comment
  JEPS102709  Montia diffusa Vernon H. Oswald and Lowell Ahart 2001-6-5 10047 Butte Bryant Ravine, near the trailhead to Feather Falls 749 Comment
  CAS-BOT-BC444890  Montia fontana L. P. Janeway 1988-6-25 2871 Butte In Coon Creek and near Bull Hill Road 1.0 mi from Skyway. 1554 Comment
  CAS-BOT-BC444891  Montia fontana L. P. Janeway; R. A. Schlising 1988-7-16 3013 Butte Along Willow Creek, 1 mi west of Humbug Summit Road. 1798 Comment
  CHSC50418  Montia fontana subsp. chondrosperma Vernon Oswald 1990-6-26 4321 Butte East branch of Willow Creek on the east side of Humbug Rd, ca. 1.25 mi (air) southwest of Humbug Summit. Very abundant in quiet water of a shallow drainage on the meadow where the north and east branches of Willow Creek join. 1853 Comment
  CHSC70812  Montia linearis B. Castro 1995-5-18 571 Butte Ca 2 air mi N of Feather Falls, towards western end of Watson Ridge, in meadow at the old Watson Cabin site, north of USFS Rd 21N25. In upper third of meadow, in very moist soil just downslope from spring. 1109 Comment
  JEPS117911  Montia parvifolia L. P. Janeway 2008-6-22 9429 Butte Along Four Trees Road crossing of South Branch Mill Creek (a tributary to North Fork Feather River) North Fork Feather River (2.7 air km east of Pulga Bridge (Hwy 70) over); Northern High Sierra Nevada 823 Comment
  CHSC109094  Morus alba Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17860 Butte On the south side of Big Chico Creek, east of the Deer Pen, south of Tables 11 , Lower Bidwell Park, Chico. 65 Comment
  JEPS119542  Morus alba Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17860 Butte East of the Deer Pen, south of Table 11, Lower Bidwell Park, Chico. Comment
  CHSC112724  Muhlenbergia filiformis Lowell Ahart 2013-10-26 19222 Butte South side of Philbrook Creek, below the high water line (strand) of Philbrook Reservoir. 1681 Comment
  CHSC34187  Muhlenbergia filiformis L. Ahart 1981-9-15 3168 Butte In the swamp, where the road forks and crosses French Creek, ca. 1 mi w of Sly Creek Reservoir. 1300 Comment
  CHSC102622  Muhlenbergia mexicana Lowell Ahart 2009-7-9 16023 Butte On the east side of Big Chico Creek, about 40 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
  CHSC51671  Muhlenbergia mexicana M. Bailey 1990-10-9 415 Butte In the vicinity of the intersection of the East and West Branches of Clear Creek, near Pentz Road on the Butte College campus. 85 Comment
  JEPS121900  Muhlenbergia minutissima Lowell Ahart 2014-7-10 19639 Butte About 80 yards south of Philbrook Road, about 1 1/4 miles west of Philbrook Reservoir. Comment
  CHSC90829  Myosotis discolor Lowell Ahart 2005-5-2 11756 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
  CHSC85417  Myriophyllum spicatum John Dittes 2003-10-8 844 Butte Arroyo Chico Land Grant. Northern Sacramento Valley; ca. 6.0 air-miles west by southwest of Chico, ca. 2.3 air-miles south of State Hwy 32, east bank of Sacramento River, Bidwell-Sacramento River State Park. 36 Comment
  UCD39223  Najas guadalupensis subsp. guadalupensis Beecher Crampton 1957-9-17 4629 Butte 5 miles northwest of Biggs. 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
  CHSC3434  Nandina domestica Judy Potter 1966-2-16 Butte 621 Brice, Chico. In yard. Comment
  CHSC6156  Nassella pulchra E. Parreno 1968-4-19 66 Butte Roadside of Cherokee Rd. e of Cherokee cemetery. Comment
  CHSC35112  Navarretia capillaris R. Schlising 1980-6-20 4102 Butte NE part of county at Jones Meadow. 1767 Comment
  UCD48390  Navarretia divaricata H. F. Copeland 1930-7-28 s.n. Butte Jonesville, Butte County. Beside South Willow Creek in shady flat. 1828 Comment
  JEPS120030  Navarretia filicaulis Lowell Ahart 2012-6-9 18180 Butte On the north side of Guardian Trail, about 50 yards southwest of Ten Mile House Road, about 1/8 mile west of Highway 32, Upper Bidwell Park, about 9 miles northeast of Chico. Comment
  JEPS120850  Navarretia filicaulis Lowell Ahart 2013-7-1 18818 Butte About 150 yards E of the intersection of Forbestown Road and Black Bart Road, about 3.25 air miles SW of Forbestown. Comment
  POM64852  Navarretia filicaulis Helen M. Edwards 1917-6-6 s.n. Butte De Sabla. Comment
  RSA716049  Navarretia filicaulis L. Ahart 2005-7-12 12140 Butte Poor road on the south side of Forest Road 21N40, about 100 yards west of Encina Grade Road (Bloomer Hill Road) (Forest Road 21N39), about 3/4 mile (air) west of Bloomer Hill, about 6 miles west of Oroville Quincy Highway. 823 Comment
  SD7460  Navarretia filicaulis Mrs. R. M. Austin 1883-1 Butte Butte Co Comment
  CHSC36712  Navarretia intertexta D. H. Ikeda 1980-5-26 389 Butte 1.4 mi w of intersection of Lunt Rd. and Nelson-Bar Rd. Comment
  SEINET3696384 Image available Navarretia intertexta Lewis S. Rose 1933-5-27 33193 Butte Bangor. 267 Comment
  JEPS107909  Navarretia intertexta subsp. intertexta Lowell Ahart 2005-7-13 12147 Butte About 10 yards east of the intersection of Forbestown Road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown, about 12 miles (air) east of Oroville 759 Comment
  UC1609318  Navarretia leptalea subsp. leptalea Lowell Ahart 1993-6-26 7035 Butte about 1 (air) mi nw Lost Creek Reservoir Dam (Jackass Flat, Mooreville Ridge); nw of Lost Creek Reservoir Dam, Mooreville Ridge, Jackass Fl 1158 Comment
  CHSC71122  Navarretia leucocephala Jan Monelo 1989-4-25 10 Butte 50 yds s of intersection of Broyles Rd and Hwy 99, ca 12 mi n of Chico; rim of drainage, ca 20 yds w of Hwy 99. 106 Comment
  UCD48514  Navarretia leucocephala Herbert L. Mason 1941-4-6 12410 Butte On volcanic rubble, near junction of Chico Paradise Road, 3 miles south of Chico, Butte County, California. Comment
  UC1719863  Navarretia nigelliformis David Fruchter 1979-5-28 s. n. Butte Richvale (N of Corning) Comment
  CHSC91119  Navarretia pubescens Lowell Ahart 2005-5-28 11819 Butte Pasture, on the south side of Nelson Avenue, east of the bridge across the Thermalito Forebay, Thermalito. 67 Comment
  SEINET3696230 Image available Navarretia pubescens Lewis S. Rose 1933-5-27 33187 Butte Honcut. 32 Comment
  CHSC91107  Navarretia tagetina Lowell Ahart 2005-5-28 11821 Butte Pasture, on the north side of Falager Ct., south of the Durham Pentz Road, east of Highway 99 East, about 4 miles east of Durham. 70 Comment
  JEPS107889  Navarretia tagetina Lowell Ahart 2005-5-28 11817 Butte Pasture, on the south side of Nelson Avenue, east of the bridge across the Thermalito Forebay, Thermalito 67 Comment
  UC963768  Navarretia tagetina H. L. Mason 1927-5-9 3707 Butte 12 mi w Oroville Comment
  RSA13527  Navarretia viscidula H. F. Copeland 1932-6-24 s.n. Butte Near Hog Springs, about 5 miles north of Chico, on the Humboldt Road 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
  SD122582  Nemacladus interior Lowell Ahart 1984-6-8 4669 Butte Ponderosa Dam, ca. 2 miles northwest of Forbestown. North side of reservoir 370 Comment
  SEINET10840525  Nemacladus interior Brooks BROOKS s.n. Butte Enterprise, Type location Comment
  CHSC31689  Nemophila heterophylla L. Ahart 1975-3-23 715 Butte Peter Ahart Ranch, Honcut. Near North Honcut Creek. 45 Comment
  UC726894  Nemophila heterophylla A. A. Heller 1940-4-28 15563 Butte opposite the Golf Links (on Big Chico Creek, e of Chico); e of Chico, Big Chico Creek, oppos Golf Links Comment
  SEINET10497053  Nemophila heterophylla Mary Susan Taylor 1981-3-16 Taylor 3411 Butte T21N R4E southcenter sec 16; Cherokee q. E side of Truex Rd, ca. 0.5 mi s of its jct with Hwy 70, ca. 7 mi n of Oroville. Foothill Woodland; 1000 ft. 305 Comment
  CHSC51050  Nemophila pedunculata Pauleen Broyles 1987-2-22 996 Butte The Nature Conservancy Vina Plains Preserve. E of Sheep Camp Ditch in 'safe' pasture, on a rise. Comment
  CHSC34813  Nemophila spatulata M. S. Taylor 1981-5-22 3794 Butte Both sides of Flea Mt Rd, ca. 1/4 air mi e of Flea Mt., ca. 5 air mi e of Magalia. In Montane Meadow. 1219 Comment
  SEINET10497063  Nemophila spatulata Mary Susan Taylor 1981-5-22 Taylor 3794 Butte T23N R5E nw/nw sec 30, Pulga quad. Ridge running SE from Flea Mt, both sides of Flea Mt Rd, ca. 1/4 air mi E of Flea Mt, ca. 5 air mi E of Magalia. Yellow Pine Forest; 4000 ft. 1219 Comment
  CHSC113103  Nicotiana acuminata var. multiflora Lowell Ahart 2013-11-18 19279 Butte Below the high water line of Lake Oroville, about 150 yards northeast of the boat ramp at the end of Stringtown Road, about 50 yards north of the road, about 2 1/2 miles (air) northeast of Hurleton. 261 Comment
  UC1609479  Nicotiana acuminata var. multiflora Lowell Ahart 1993-7-22 7069 Butte about 5 air mi ne Feather River Falls (at Camp 18) 1219 Comment
  CAS-BOT-BC400068  Nuphar polysepala E. B. Copeland 1929-7-29 s.n. Butte Jonesville, near Butte Creek House 1750 Comment
  JEPS104455  Odontostomum hartwegii Lowell Ahart 2003-5-14 10173 Butte Wash, Peter Ahart Ranch, ca 2 mi n and 2 mi e of Honcut, ca 12 mi se of Oroville. 48 Comment
  SEINET3887700  Odontostomum hartwegii Unknown 1929-4-5 1130 Butte Canyon of Chico Creek.; 0 Comment
  CHSC39065  Oemleria cerasiformis R. A. Schlising 1983-4-15 4401 Butte S of village of Cohasset on Cohasset Ridge, near Maple Branch of Mud Creek. 487 Comment
  CHSC6028  Olea europaea M. MacArthur 1968-6-18 223 Butte Ca. 10 ft. W of Big Chico Creek and ca. 30 ft N of PSA bld. bridge, Chico State College. 60 Comment
  CHSC43190  Oreostemma alpigenum var. andersonii Robert Banchero 1981-7-19 595 Butte Butte Creek House, ca 3 air mi NE of Jonesville. 1755 Comment
  CAS-BOT-BC499849  Orobanche fasciculata Ahart; Jokerst 1985-5-10 4961 Butte 1/2 mi E of Potter Ravine, S of the east branch of Potter Ravine, 2.5 mi NE of Oroville Dam 350 Comment
  JEPS104025  Orobanche uniflora var. uniflora Lowell Ahart 2003-4-15 10098 Butte Steep slopes of Beatson Hollow, sw of drainage entering Beatson Hollow, ca 1 1/4 mi nw of the iron gate and fence, nw of Cherokee Rd, North Table Mountain, ca 7 mi (air) n of Oroville. 284 Comment
  CHSC61330  Orthilia secunda Lowell Ahart 1993-7-29 7130 Butte Small bog about 1/8 mile south-west of the Snow Mine, about 2-1/2 miles east of Bald Mountain, about 6-1/2 miles north-east of Stirling City. 1463 Comment
  SEINET12326947  Orthocarpus attenuatus S. C. Joslin 1978-1 6 Butte ca 5 mi E of Chico on Humbug Rd ca 0.75 mi W of intersection with Hwy 32 244 Comment
  RSA32035  Orthocarpus lacerus A. A. Heller 1941-5-9 16107 Butte On the Clark Road to Paradise a half mile above the site of the old Clear Creek Post Office. Comment
  RSA727539  Orthocarpus lacerus 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
  SEINET10549699  Orthocarpus lithospermoides Mary Susan Taylor 1980-4-18 Taylor 2533 Butte On dry open bluff, on E side of Humbug Road, ca. 3 mi SW of Nimshew; Foothill Woodland. With J.D. Jokerst. 518 Comment
  CHSC89744  Osmorhiza occidentalis L. P. Janeway; Robert F. C. Naczi 2004-7-23 8181 Butte High Cascade Range. Forested slope about 0.3 km southeast of the east end of Philbrook Reservoir. Northwest-facing slope. 1707 Comment
  CHSC47852  Oxalis bowiei Vernon H. Oswald 1989-11-10 4027 Butte Table Mtn Blvd, 0.7 mi nw of Garden Drive, Thermalito. Along the edge of road at the bottom of railroad right of way. 91 Comment
  JEPS122162  Oxypolis occidentalis Lowell Ahart 2014-8-13 19703 Butte About 110 yards southeast of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  SEINET10454540  Oxypolis occidentalis Mary Susan Taylor, Lowell Ahart 1981-8-15 Taylor 4193 Butte T25N R5E se 1/4 se 1/4 36. Jonesville SW. N side of Coon Hollow Rd, 1.2 mi E of its jct with Humbug Rd, ca. 12 mi NE of Stirling City. 5500 ft. 1676 Comment
  CAS-BOT-BC316892  Packera eurycephala var. lewisrosei John Thomas Howell 1951-6-26 27523 Butte near Pulga 365 Comment
  JEPS26675  Packera eurycephala var. lewisrosei P. C. Hutchison 1961-6-9 2097 Butte 1.0 mi s (above) Pulga Bridge (on highway U.S. Alt. 40, canyon of the North Fork of the Feather River); North Fork of the Feather River Comment
  CAS-BOT-BC10463  Paeonia brownii Herbert Faulkner Copeland 1920-5-1 s.n. Butte Jonesville 1219 Comment
  CAS-BOT-BC253696  Panicum capillare Lowell Ahart 1974-11-9 s.n. Butte Edge of rice field, Peter Ahart Ranch, Honcut 45 Comment
  CHSC34053  Panicum capillare L. Ahart; M. S. Taylor 1981-8-15 3042 Butte On bottom of Snag Lake, on n side of lake, ca. 10 mi n of Inskip. 1500 Comment
  JEPS76249  Panicum capillare W. L. Jepson 1939-8-17 19461 Butte Feather River near Oroville; Feather River 45 Comment
  UCD89514  Panicum capillare A. A. Heller 1916-9-30 12665 Butte 8 miles north of Oroville. Comment
  RSA724812  Panicum dichotomiflorum L. Ahart 2006-9-11 13308 Butte South edge of the North Fork of the Feather River, North side of Highway 70, About 1/8 mile west of the Poe Dam, About 3/4 mile northeast of Pulga, About 21 miles (air) northeast of Oroville. 432 Comment
  JEPS124344  Panicum dichotomiflorum subsp. dichotomiflorum Lowell Ahart 2015-10-26 20606 Butte About 1 mile (air) of southeast of Kunckle Reservoir, about 5 miles (air) southeast of Paradise. Comment
  CDA6402  Parentucellia viscosa L. P. Janeway 2006-5-4 8574 Butte Northern Sierra Nevada Foothills; On the slopes above the east side of Pentz Road 0.5 km north of Durham-Pentz Road. Comment
  CHSC44431  Parentucellia viscosa Lowell Ahart 1988-5-29 6008 Butte Near a small wash, about 1/10 mile north-east of the old barn, about 1/2 mile north-east of the Honcut Cemetary, Joie Osgood Ranch, about 3 1/2 miles east and 1 1/2 miles north of Honcut. 60 Comment
  CHSC111161  Parthenocissus quinquefolia Lowell Ahart 2012-6-21 18210 Butte On the south side of Big Chico Creek, about 250 yards east of the dam at Sycamore Pool, Lower Bidwell Park, Chico. 62 Comment
  UC925410  Parvisedum pumilum A. A. Heller 1938-4-22 15042 Butte about 9 mi n of Chico (along U.S. Highway #99E, in hills about Chico); U.S. Highway #99E 60 Comment
  UCD88690  Paspalum boscianum Elizabeth Wilson 1934-8-9 s.n. Butte Biggs Rice Station. Comment
  CHSC6744  Paspalum dilatatum V. Hagaman 1968-6-1 581 Butte Corner of 2nd street and Chestnut, Chico. Comment
  JEPS116010  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
  CHSC78964  Paspalum distichum Lowell Ahart 2000-10-2 8697 Butte Northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) soutwest of Chico. 32 Comment
  CHSC34221  Paxistima myrsinites M. S. Taylor 1981-5-29 3811 Butte Vicinity of old mining claim ca bin, Chino Ridge, at end of spur rd 22N85, off 22N31, at Chino Creek, ca. 3 air mi sw of Coyote Gap, ca. 16 air mi n of Oroville. 975 Comment
  CHSC37125  Paxistima myrsinites L. Ahart 1982-9-13 3827 Butte Along edge of dirt rd by Pinkard Creek, ca. 1/8 mi n of Lost Creek Reservoir Dam, ca. 2.2 mi nw of Strawberry Valley. 1100 Comment
  CHSC47378  Pectocarya penicillata Lowell Ahart 1989-11-12 6401 Butte On the bottom of a wash, in the borrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  CHSC108988  Pectocarya pusilla Lowell Ahart 2012-4-30 17936 Butte On the east side of Guardian Trail, about 300 yards north of Humboldt Trail, north of Bloody Pin Trail, about 1/8 mile west of Highway 32, about 8 miles northeast of Chico, south part of Upper Bidwell Park. 361 Comment
  RSA178619  Pedicularis attollens A. A. Heller 1928-7-10 14673 Butte Butte Meadows. Comment
  CHSC30305  Pedicularis densiflora M. S. Taylor 1980-5-27 2675 Butte Along trail to Big Bald Rock, ca. 3 mi e of Lake Madrone. 996 Comment
  SEINET12320799  Pedicularis densiflora T. L. Wood 1974-1 30 Butte 100 yards W of Cohasset HWY, 17 mi E of Chico Airport 232 Comment
  SEINET11715829  Pellaea andromedifolia S. M. Leary 1978-1 15 Butte North Table Mountain, 6.5 mi N of Oroville, ca 3 mi NNW of Cherokee Rd, upper ridge of Coal Canyon 366 Comment
  UC122746  Pellaea andromedifolia Mrs. R. M. Austin April 1883 77 Butte Little Chico Canyon Comment
  UC699694  Pellaea brachyptera E. B. Copeland 1941-1 Butte Jonesville Comment
  CAS-BOT-BC67556  Pellaea mucronata Lowell Ahart 1966-2-25 s.n. Butte Honcut - Peter Ahart Ranch 45 Comment
  SEINET10899920  Pellaea mucronata Mary Susan Taylor 1980-2-23 Taylor 2315 Butte T22N R3E nw 1/4 sec 25 Cherokee quad. E side of Sawmill Road, ca. 0.5 mi S of Pearson Rd, Paradise. 610 Comment
  SEINET11713847  Pellaea mucronata Unknown 4 s.n. Butte no further locality Comment
  CHSC40885  Penstemon azureus Lowell Ahart 1985-5-15 4988 Butte East of the dirt road, about 1 1/2 miles north-east of Concow Res. 731 Comment
  CHSC44772  Penstemon azureus R. Banchero 1980-5-12 153 Butte Along Hwy 70, 2.4 mi S of its jct with the Feather River. 609 Comment
  CHSC114692  Penstemon azureus J. R. Keck Jr. 1978-5-23 Butte Highway 70, Jarboe Gap. Near Poe Power House. Roadside. Comment
  CHSC92734  Penstemon azureus var. azureus L. P. Janeway 2005-6-26 8429 Butte Northern High Sierra Nevada. South-facing slope 0.4 km south of top of Batchelor Point, 0.6 km east of top of Rocky Ridge and Rim Road (Ponderosa Way). 945 Comment
  UC436310  Penstemon deustus var. deustus E. B. Copeland 1930-7-7 Butte Jonesville Comment
  UCD124218  Penstemon heterophyllus L. E. Hazeltine 1916-7-25 s.n. Butte Chico. Comment
  CHSC44703  Penstemon laetus var. leptosepalus R. Banchero 1980-6-2 177 Butte Along Hwy 32, ca 3.1 mi SW of the town of Forest Ranch, 5.7 mi SW of the jct of Hwy 32 and Forest Ranch Rd. 609 Comment
  JEPS106173  Penstemon laetus var. leptosepalus Lowell Ahart 2004-6-22 11122 Butte On the west side of Doe Mill Road, about 1 mile southeast of the bridge across Butte Creek, about 2 1/2 miles (air) southeast of Forest Ranch, about 5 miles (air) southwest of Stirling City 713 Comment
  POM193430  Penstemon neotericus E. B. Copeland 1929-7-13 456 Butte Jonesville. 1650 Comment
  LA209542  Penstemon newberryi var. newberryi E. B. Copeland; 1930-7-6 458 Butte above Jonesville 1900.0 Comment
  LA209562  Penstemon procerus E. B. Copeland; 1931-6-20 Butte Jonesville, Butte Creek 1500.0 Comment
  CHSC31522  Pentagramma pallida L. Ahart 1974-12-7 685 Butte Along North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC30716  Pentagramma triangularis M. S. Taylor; R. Schlising 1980-7-6 3079 Butte On s side of Old Humboldt Rd, ca. 0.9 mi w of Butte Meadows Forestry Station. 1341 Comment
  UCD137761  Pentagramma triangularis M. S. Taylor 1980-4-1 2425 Butte south side of Butte Creek, ca. 0.25 mile down stream from Honey Run Covered Bridge, ca. 6 miles east of Chico. 182 Comment
  CHSC92455  Pentagramma triangularis subsp. semipallida Lowell Ahart 2005-11-12 12482 Butte Steep road cut on the east side of Dark Canyon Road, south of the large parking area, south of the gate, end of Dark Canyon Road, about 3 miles (air) south of Highway 70 at Big Bend Road. 293 Comment
  CHSC86076  Pentagramma triangularis subsp. triangularis R. D. Fischer; Paul Maslin 2003-12-24 18 Butte Sierra Nevada Range, off Hwy 32 between Chico and Forest Ranch. Located about 150 yds. west of a wide pull out which, in turn, is about 200 yds. south of the gated main entrance to Big Chico Creek Ecological Reserve (BCCER). 548 Comment
  UC1312887  Perideridia bolanderi subsp. involucrata Lincoln Constance and Tsan-Iang Chuang 1967-6-21 3778 Butte road to Magalia 1.8 mi n Pentz Store 137 Comment
  CAS-BOT-BC211292  Perideridia gairdneri subsp. gairdneri Lowell Ahart 1977-6-13 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CHSC66659  Perideridia kelloggii Vernon H. Oswald; Lowell Ahart 1996-7-22 8089 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Near the SW corner of Tract 3.4, Sanctuary II, on the Llano Seco Ranch side of the refuge boundary. 32 Comment
  CHSC91467  Perideridia lemmonii Lowell Ahart 2005-7-12 12143 Butte About 40 yards south of Encina Grade Road (Bloomer Hill Road) (Forest Road 21N39), about 40 yards east of Forest Road 21N40, about 3/4 mile (air) west of Bloomer Hill, about 6 miles west of Oroville Quincy Highway. 822 Comment
  CHSC114079  Perideridia parishii Jennifer Buck; Danielle Roach 2009-8-27 WBCCC 02 A Butte Headwaters West Branch Crow Creek, 1 mile south of Mumbo Basin, The Eddys; UTM Zone 10N, 540746E, 4558975 1883 Comment
  CHSC41892  Perideridia parishii subsp. latifolia Lowell Ahart 1986-8-15 5387 Butte South of the dirt road, about 1 mile south-west of Bald Mountain, about 4 miles north-east of Stirling City. 1493 Comment
  SEINET3924533  Persicaria amphibia Lowell Ahart 2003-6-16 10287 Butte On the west side of Wickman Road, about 1 mile south of Richvale West road, about 1.5 miles (air) southwest of Richvale.; 0 29 Comment
  CHSC1345  Persicaria lapathifolia V. Holt 1940-7-16 Butte W. Sacramento Ave., Chico. 54 Comment
  CHSC94597  Persicaria lapathifolia Lowell Ahart 2006-9-11 13289 Butte South edge of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville. 431 Comment
  CAS-BOT-BC418949  Persicaria lapathifolia Lowell Ahart 1982-10-6 3844 Butte Along the edges of North Honcut Creek, about 1 mile north and 3 miles east of Honcut, Peter Ahart Ranch 50 Comment
  CHSC116292  Persicaria maculosa Lowell Ahart 2015-10-16 20556 Butte On west side of Feather River, about half way of and east of One Mile Pond, about 6 miles (air) east of Biggs. 26 Comment
  CHSC43101  Persicaria maculosa Pauleen Broyles 1987-10-26 1092 Butte The Nature Conservancy Vina Plains Preserve. Wurlitzer Parcel. Damp edges of manmade reservoir. 55 Comment
  CHSC116135  Persicaria punctata Lowell Ahart 2015-11-7 20635 Butte On the bottom of Grizzly Creek, flows into Dark Canyon, about 1/8 mile southwest of the parking area at the end of old highway Alternate 40, strand of Lake Oroville, about 4 miles (air) south of Highway 70, about 8 miles (air) southeast of Paradise. 231 Comment
  CHSC2390  Petrorhagia dubia R. Carter 1965-5-19 214 Butte Found 7 mi. E of Oroville, along N side of Feathervale Ave., 20' from intersection with Wyandott LaPort Rd. 274 Comment
  SJSU5410  Petrorhagia dubia C. D. Duncan 1963-5-4 Butte Neal Rd between Chico & Paradise 487 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
  RSA421518  Phacelia bicolor M. M. Boney 1897-1 s.n. Butte [No location information on label.] Comment
  SEINET10935989  Phacelia cicutaria Lowell Ahart 1984-4-4 Ahart 4541 Butte T17N R4E. Peter Ahart Ranch, ca. 2.5 N and 2.5 E of Honcut. Foothill Woodland; 50 m. 50 Comment
  UC726927  Phacelia cicutaria var. cicutaria A. A. Heller 1942-4-26 16435 Butte steep slope...overlooking a deep gorge where the road begins to descend toward Oroville after leaving the...summit of Table Mountain Comment
  UC1047022  Phacelia corymbosa L. R. Heckard and J. R. Sweeney 1953-4-27 347 Butte along Feather River Hwy 2.5 mi below (sw) Pulga 487 Comment
  JEPS115860  Phacelia egena Lowell Ahart 2009-4-22 15580 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
  CHSC118390  Phacelia egena Tim Kask 2015-2-18 225 Butte Antelope Creek, upstream from Fischer CG. 10T 0595755/4455054 Comment
  SEINET11263935  Phacelia egena Lowell Ahart 1992-9-20 6922 Butte Lake Oroville, about 1/8 miles west of the Enterprise Boat Launch Ramp, about 3/4 miles SW of Rocky Point.; 0 244 Comment
  CHSC59549  Phacelia imbricata Lowell Ahart 1992-9-20 6922 Butte Below the high water line of Lake Oroville, about 1/8 mile west of the Enterprise Boat Launch Ramp, about 3/4 mile south-west of Rocky Point. 243 Comment
  CAS-BOT-BC154305  Phacelia ramosissima var. ramosissima A. A. Heller 1914-7-2 11517 Butte [Canon] Canyon of Big Chico creek Comment
  CAS-BOT-BC154303  Phacelia ramosissima var. ramosissima Charles Piper Smith 1914-7-2 2905 Butte Chico Creek Comment
  POM73395  Phacelia tanacetifolia C. C. Bruce 1898-05 2389 Butte Big Chico. Comment
  SEINET10660064  Phalaris aquatica Unknown 1966-5-25 Anonymous s.n. Butte 7 mi. E of Oroville, ca. 100 yds off Wyandotte La Porte Rd. on Feathervale on E side of road. Dry soil Comment
  UCD89390  Phalaris paradoxa A. A. Heller 1914-5-13 11391 Butte Near Nelson. Comment
  CAS-BOT-BC77371  Philadelphus lewisii Lowell Ahart 1983-6-21 4080 Butte along Bloomer Hill Road, about 3/4 miles west of the Oroville Quincy Highway, about 15 miles northeast of Oroville 425 Comment
  CHSC10791  Philadelphus lewisii Lowell Ahart 1966-5-22 Butte Near Paradise. 91 Comment
  CAS-BOT-BC250866  Phleum pratense Lowell Ahart 1987-7-8 5795 Butte Along Big Bar Mountain Road, about 3 miles south-west of Coyote Gap, south-east of Pulga 1280 Comment
  SEINET11688461  Phleum pratense Unknown 1985-1 5156 Butte Forbestown Res., ca 50 yds S of Generator, ca 4.5 mi NE of Forbestown 351 Comment
  SEINET7042407  Phlox speciosa subsp. occidentalis A. G. Vestal 1963-5-30 s.n. Butte Ca 1.4 miles west of Fobestown. Forbestown quadrangle UTM Zone 10, 647446mE, 4376583mN. Comment
  CAS-BOT-BC134916  Phoradendron bolleanum John Thomas Howell 1962-6-15 37435 Butte Magalia. Sierra Nevada 731 Comment
  SEINET10492843  Phoradendron juniperinum subsp. libocedri Mary Susan Taylor 1981-5-15 Taylor 3739 Butte 4000 ft. T22N R5E sene sec 2, Pulga SW quad. At loop in RD 23N00.l, ca. 0.5 mi S of Coyote Gap on Four Trees Rd, ca. 4 air mi E of Pulga on Hwy 70. Serpentine barrens within Yellow Pine Forest. 1219 Comment
  CHSC33900  Phoradendron libocedri M. S. Taylor 1981-5-15 3739 Butte At loop in rd 23N00.1, serpentine barrens, ca. 0.5 mi s of Coyote Gap on Four Trees Rd, ca. 4 air mi e of Pulga on Feather River Hwy 70. 1219 Comment
  CHSC21051  Phoradendron villosum M. S. Taylor 1975-5-9 566 Butte Ca. 1/2 mi n of De Sabla turnoff, ca. 50 ft. e of the Skyway, Magalia. 731 Comment
  CHSC3292  Phoradendron villosum M. L. Hillier 1966-2-14 Butte 8.2 miles n.e. of C.S.C. Admin build. at n. end Bidwell Park. Chico. Comment
  RSA133202  Phoradendron villosum Del Wiens 1960-6-15 2726 Butte Near Paradise. 152 Comment
  JEPS120060  Photinia Lowell Ahart 2012-4-9 17824 Butte On the north side of South Rim Trail, about 30 yards east of Big Chico Creek, south part of Upper Bidwell Park, about 3/4 mile east of the power lines, about 1 3/4 miles (air) northeast of Chico. Comment
  CHSC27269  Photinia serratifolia P. Moyer 1971-10-1 26 Butte CSUC Campus. Bidwell Mansion front lawn. 60 Comment
  JEPS117305  Photinia serrulata 2010-5-28 16745 Butte On the north side of the path, about 100 yards west of the Cedar Grove Parking Area in lower Bidwell Park, Chico 67 Comment
  JEPS113582  Physalis lancifolia Lowell Ahart 2007-8-19 14494 Butte About 2 1/4 miles (air) southeast of Honcut, about 13 miles (air) southeast of Oroville 49 Comment
  CAS-BOT-BC140561  Physocarpus capitatus Lowell Ahart 1981-7-7 2921 Butte Along Black Bart Road, Forbestown. About 0.5 mile west of the Oroville Forbestown Road 700 Comment
  CAS-BOT-BC434419  Phytolacca americana Alice Eastwood 1913-6-18 s.n. Butte Experimental Station, Chico Comment
  CHSC103940  Pilularia americana Lowell Ahart 2010-5-22 16712 Butte South of the road, about 120 yards east of the fence, about 220 yards east of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 379 Comment
  CHSC31532  Pilularia americana L. Ahart 1973-4-15 197 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC24866  Pinus contorta subsp. murrayana G. C. Gilliland 1976-4-21 20 Butte One tree growing along n wall of the parking area at the apartments at 180 E. 1st Ave., Chico. 59 Comment
  RSA4589  Pinus jeffreyi E. B. Copeland 1929-7-19 333 Butte Jonesville 1550 Comment
  SEINET10866943  Pinus lambertiana Mary Susan Taylor 1975-9-12 Taylor 913 A Butte Yellow Pine Forest, ca. 24 mi NE of Chico, ca. 500 m W of Hwy 32; with Torreya californica, Ceanothus prostratus. 1067 Comment
  POM120221  Pinus sabiniana C. C. Bruce 1897-01 1787 Butte Foothills Comment
  CHSC27191  Pinus sylvestris P. Moyer 1971-10-8 41 b Butte Front lawn Admin. Bldg. On CSUC campus. 60 Comment
  JEPS117404  Piperia elongata Lowell Ahart 2010-5-14 16673 Butte On the south side of Guardian Trail, about 1/4 mile west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 301 Comment
  CHSC114686  Piptatherum miliaceum G. F. Hrusa; S. Dubiel 2012-9-9 18509 Butte Sierra Nevada. Banks of Feather River, 2 miles downstream from Thermalito afterbay. 30 Comment
  CHSC27196  Pistacia chinensis P. Moyer 1971-10-1 19 Butte CSUC Campus. S side of Bidwell Mansion Along So-wil-len-no Ave. 60 Comment
  CHSC27273  Pistacia chinensis P. Moyer 1971-10-1 19 Butte CSUC Campus. S side of Bidwell Mansion Along So-wil-len-no Ave. 60 Comment
  SEINET10966243  Pityrogramma triangularis Mary Susan Taylor 1980-4-18 Taylor 2516 Butte W side of Humbug Road, ca. 1 mi S of Nimshew. With J.D. Jokerst. 610 Comment
  SEINET10529947  Pityrogramma triangularis var. pallida Mary Susan Taylor Taylor 984 Butte Bidwell Park, Chico. Comment
  UC398679  Plagiobothrys canescens A. A. Heller 1926-4-21 13935 Butte 7 mi n Chico; Rock Creek Comment
  CHSC28982  Plagiobothrys glyptocarpus R. A. Schlising 1980-3-23 3519 Butte E of Chico and SW of Paradise. 289 Comment
  CHSC35064  Plagiobothrys glyptocarpus R. A. Schlising 1981-4-11 4020 Butte Chico, between Hwy 32 and Humboldt Road. 76 Comment
  CHSC44479  Plagiobothrys glyptocarpus Lowell Ahart 1988-5-12 5994 Butte On the bottom of a small wash, in a mined over area, about 1/2 mile north-east of the Honcut Cemetery, Joie Osgood Ranch, about 3 1/2 miles east and 1 1/2 miles north of Honcut. 60 Comment
  CHSC38276  Plagiobothrys greenei Vernon Oswald 1983-3-19 200 Butte Upper Bidwell Park, Chico, on the s side of Upper Park Rd. ca. 300 ft w of Parking Area M (1.2 mi e of the power lines). 146 Comment
  UCD120869  Plagiobothrys greenei L. Ahart 1979-5-11 1870 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CAS-BOT-BC228258  Plagiobothrys hispidulus H. F. Copeland 1938-7-4 s.n. Butte Jonesville Comment
  CHSC113448  Plagiobothrys hispidulus Lowell Ahart 2014-7-10 19627 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1664 Comment
  CHSC65331  Plagiobothrys hispidulus Lowell Ahart 1995-10-3 7667 Butte Along the north side of Butte Creek, about 150 yards east of the bridge across Butte Creek, in Butte Creek House Meadow, about 2 1/2 miles (air) north-east of Snag Lake. Meadow. 1767 Comment
  RSA0116258  Plagiobothrys hispidulus Lowell A. Ahart 2014-7-10 19627 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1665 Comment
  UCR187084  Plagiobothrys nothofulvus Anna M. Hurlbutt, C. R. Weeks 2007-4-26 008 Butte Sierra Nevada Mtns., Paradise, < 0.25 mi N of Skyway, c. 5 mi E of Oroville Reservoir, bluffs above Hamlin Canyon, formed by Butte Cr. and Little Butte Cr. 488 Comment
  UC1564795  Plagiobothrys scouleri V. Oswald and L. Ahart 1989-7-12 3852 Butte ca 2 mi (air) sw Lotts Lake (ca 3 mi (air) se of Philbrook Reservoir, near headwaters of Big Kimshew Creek) 1901 Comment
  CHSC35067  Plagiobothrys shastensis R. A. Schlising 1981-4-6 4012 Butte S of Oroville along Hwy 70, S of Baggatt Road, along highway. Comment
  CHSC46768  Plagiobothrys shastensis Lowell Ahart 1979-5-20 1877 Butte Along the edge of a large wash, Peter Ahart Ranch, about 2 1/2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  UC52288  Plagiobothrys stipitatus Mrs. R. W. Summers Butte Comment
  UC78200  Plagiobothrys stipitatus R. M. Austin Apr 1896 626 Butte Adobe Swales Butte Creek Comment
  CHSC115366  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2015-4-24 20063 Butte Bottom and sides of a large duck field, 50 yards southeast of Parking Lot 1, about 1 1/4 miles north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. 19 Comment
  CHSC29269  Plagiobothrys stipitatus var. micranthus R. A. Schlising 1979-4-15 3366 Butte Richvale vernal pools; 1/4 mi S of jct Hwy 162 to Oroville and Hwy 99, along latter and across from Thermalito Afterbay. Comment
  JEPS123905  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2015-4-24 20063 Butte About 1 1/4 miles north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. Comment
  JEPS98572  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2000-6-6 8451 Butte 5 mi (air) E of Oroville Dam (sides of old gold mining pit, SE of where the dirt road crosses Oregon Gulch Creek, 1/4 mi NE of the cemetary, 1 1/2 mi S of Crystal Hill) 304 Comment
  SEINET10870088  Plagiobothrys stipitatus var. micranthus Lowell Ahart 1983-6-6 Ahart 4034 Butte Peter Ahart Ranch, ca. 2.5 mi ne of Honcut. Valley Grassland; 50 m. 50 Comment
  CHSC28590  Plagiobothrys tenellus M. S. Taylor 1974-3-3 68 Butte On Burton's Mesa, ca. 3 mi e of Chico on the Skyway to Paradise. 60 Comment
  CHSC29276  Plagiobothrys tenellus R. A. Schlising 1980-4-7 3557 Butte 2.8 mi E of Bangor Highway, on Swedes Flat Road. 365 Comment
  CHSC104837  Plantago coronopus Lowell Ahart 2010-6-12 16802 Butte In the center of Ten Mile House Road, where the trail comes in from the east, about 3/4 mile (air) west of Highway 32, about 9 miles (air) northeast of Chico. 224 Comment
  CHSC47455  Plantago coronopus Lowell Ahart 1968-5-8 19 Butte Growing along roads, Peter Ahart Ranch, about 1 1/2 miles north and 1 1/4 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC71260  Plantago coronopus Lowell Ahart 1998-7-1 8030 Butte West of a small wash, 20 yards south of a east west fence, in the tracks of a poor dirt road, about 5/8 mile north of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CHSC47458  Plantago elongata Lowell Ahart 1974-3-24 337 Butte Growing on the bottom of vernal pools and wet swales, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC83954  Plantago elongata Lowell Ahart 2003-4-8 10032 Butte On the high water line of a small vernal pool, about 20 yards south of a faint poor dirt road, pasture field, about 150 yards southwest of the iron gate and fence, west of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 348 Comment
  CHSC87222  Plantago elongata Lowell Ahart 2004-4-14 10741 Butte In the road gutter and on the lower edge of the south side of Lower Honcut Road, about 100 yards west of Wyandotte Creek, about 1/8 mile west of the Railroad, about 1 3/4 miles west of Honcut. 27 Comment
  CHSC90481  Plantago elongata Lowell Ahart; Paul Maslin, John Dittes 2005-3-17 11663 Butte Big Chico Creek Ecological Reserve. Burned area, about 50 yards south of the fence, on the east side of the very poor dirt road, about 1/8 mile northwest of the Indian Cave, about 3/4 mile west of Big Chico Creek, about 4 1/2 miles (air) northeast of Chico. 481 Comment
  SEINET12328349  Plantago elongata Unknown 1984-1 4584 Butte Peter Ahart Ranch, ca 2.5 mi NE of Honcut, ca 12 mi S of Oroville 50 Comment
  CHSC4179  Plantago erecta M. Lee 1967-4-10 15 Butte In field, W. side of Cherokee Rd., ca. 8 1/2 mi. N. of Oroville. 373 Comment
  UC195481  Plantago erecta A. A. Heller 1914-3-21 11221 Butte 8 mi n Oroville Comment
  SEINET10499870  Plantago hookeriana var. californica Mary Susan Taylor 1974-4-20 Taylor 183 Butte On W side of Richardson Springs Rd, ca. 2 mi NE of Cohasset Rd, ca. 6 mi N of Chico. Comment
  SEINET13711423  Plantago major Lowell William Ahart, Lowell William Ahart 1999-1 8173 Butte 12 Air Mi SW of Chico, 2 Air Mi SE of Ordbend, Sacramento River Comment
  SEINET10938438  Platanthera Mary Susan Taylor 1980-4-18 Taylor 2500 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
  CHSC26857  Platanthera leucostachys M. S. Taylor; M. Hayes 1978-6-24 1645 Butte In Cherry Creek Meadow, on s side of Old Humbodt Rd, ca. 4 mi e of Butte Meadows. 1524 Comment
  CHSC68911  Platanthera leucostachys Lowell Ahart 1997-7-11 7746 Butte Southeast of Cold Creek, about 2 miles (air) southwest of Bald Mountain, about 9 miles by road from Stirling City, or about 2 miles (air) northeast of Stirling City. 1219 Comment
  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
  CHSC109624  Platanus racemosa Lowell Ahart 2012-5-17 18074 Butte On the west side of a horse trail, about 40 yards north of Big Chico Creek, south of the southwest corner of the old walnut orchard, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. 76 Comment
  CHSC1214  Platystemon californicus P. Delaplane 1965-4-8 67 Butte In field on E side of Cactus at intersection of Manzanita, Chico. 30 Comment
  CHSC30887  Plectritis macrocera J. D. Jokerst 1979-4-6 1186 Butte Top of North Table Mt, W edge of Mt. 365 Comment
  CHSC29796  Pleuricospora fimbriolata M. S. Taylor; J. D. Jokerst, R. Schlising 1980-6-14 2868 Butte On trail embankment, to Big Bald Rock, ca. 3 mi e of Lake Madrone. 997 Comment
  CHSC39610  Poa annua Lowell Ahart 1983-3-28 3908 Butte About 1/2 mile south-west of the Forbestown Res., along the road where there is a serpentine slide area, about 4 miles north-east of Forbestown. 450 Comment
  SEINET10968212  Poa bulbosa Lowell Ahart 1984-4-3 Ahart 4534 Butte T17N R4E sec 1. Along North Honcut Creek, ca. 1 mile N and 2.7 miles E of Honcut; on Peter Ahart Ranch. Foothill Woodland; 50 m. 50 Comment
  CHSC76332  Poa compressa G. F. Hrusa 1997-5-29 13798 Butte Sierra Nevada. Slopes on N side of Sucker Run Creek, +/- 1.5 mi. SSE of Feather Falls townsite. Near creek. [Original Lat./Long. on label is '39 34 N; 121 14 W']. 750 Comment
  UC1586632  Poa compressa Lowell Ahart 1991-7-22 6665 Butte e of Springtown Rd Lake Oroville (w side of Powell Creek) 243 Comment
  CAS-BOT-BC255973  Poa pratensis Lowell Ahart 1980-5-17 2275 Butte 1/2 mile south-east of Hurleton 600 Comment
  JEPS94826  Poa pratensis subsp. pratensis Lowell Ahart 1998-6-9 7986 Butte about 7 air mi n of Oroville (sw of the ione oak tree, nw of the cow chute along Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 403 Comment
  CHSC52215  Pogogyne zizyphoroides Linda Osborn 1980-4-22 18 Butte Ca 6 mi n jct of Esplanade on Hwy 99, 250 yds w. Comment
  CHSC773  Pogogyne zizyphoroides V. Holt 1935-5-7 Butte Centerville Rd. 60 Comment
  RSA0022186  Pogogyne zizyphoroides A. A. Heller 1938-4-22 15043 Butte On U. S. Highway 99E, near the Cana road. Comment
  JEPS95886  Polanisia dodecandra subsp. trachysperma Lowell Ahart 1999-8-13 8157 Butte northwest of Parrott Landing; about 1 mile southeast of Ord Ferry; about 2 miles southeast of Ordbend; about 12 miles (air) southwest of Chico 32 Comment
  CHSC101687  Polycarpon tetraphyllum Lowell Ahart 2009-5-8 15657 Butte On the south side of the gravel road, about 10 yards east of Cedar Grove Parking Area in Lower Bidwell Park, Chico. 67 Comment
  CHSC75266  Polycarpon tetraphyllum Lowell Ahart 1999-5-24 8080 Butte Sidewalks, Butte County Historical Society museum, 2335 Baldwin Avenue, Oroville. 60 Comment
  SEINET10493883  Polygala cornuta Mary Susan Taylor 1978-7-21 Taylor 1798 Butte Vicinity of Lake Madrone, at Oroville- Quincy Hwy turnoff, ca. 10 mi NE of Oroville; Yellow Pine Forest. 610 Comment
  CHSC31216  Polygonum aviculare M. S. Taylor 1980-10-6 3359 Butte N side of Hwy 70 in granitic gravel, ca. 1/4 mi w of Bear Creek jct with n fork Feather River, ca. 0.5 mi w of Arch Rock Tunnel Rest Stop. 487 Comment
  CHSC46204  Polygonum aviculare L. P. Janeway 1986-10-19 1940 Butte Wet area along small creek feeding Thermalito Forebay from the NE. Between bay and hwy 99 and just N of the State Park picnic grounds. 67 Comment
  UCD99986  Polygonum aviculare subsp. depressum H. F. Copeland 1923-6-4 s.n. Butte Nelson. Comment
  CHSC28768  Polygonum bidwelliae J. D. Jokerst 1978-5-21 125 Butte Ca. 200 mets. N. W. of Hwy 32, 7.7 mi. N. of Chico, top of ridge. 365 Comment
  CHSC63713  Polygonum bidwelliae Lowell Ahart 1994-10-8 7552 Butte On a dry bare open low rounded hill, about 150 yards east of Kunkle Creek, south of the new homes a little west of the trees, about 1/4 mile north-east of Kunkle Reservoir, near Paradise. 487 Comment
  LA207131  Polygonum bidwelliae A. A. Heller; 1927-5-18 14391 Butte volcanic outcrops along Neale grade on road from Chico to Paradise Comment
  RSA489570  Polygonum bidwelliae James L. Reveal 1988-6-3 6999 Butte Crown Point Road, 0.8 mile northeast of Hwy 32 between Ten Mile Trail and Fourteen Mile House Road, about 12 miles northeast of Chico. 610 Comment
  CHSC63716  Polygonum californicum Lowell Ahart 1994-10-10 7562 Butte On the banks of a deep wash, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  UC186377  Polygonum californicum Dr. C. C. Parry Oct. 1881 Butte Chico Comment
  UC85631  Polygonum californicum Mrs. R. M. Austin 1883-1 Butte Chico Comment
  CAS-BOT-BC414421  Polygonum douglasii Lowell Ahart 1986-8-15 5390 Butte East of the dirt road, along a branch of Last Chance Creek, about 1 mile west of Bald Mountain, about 4 1/2 miles north-east of Stirling City 1371 Comment
  POM219174  Polygonum douglasii H. F. Copeland 1928-8-18 318 Butte Jonesville, Butte Creek Canyon 1524 Comment
  UCD100208  Polygonum douglasii E. B. Copeland 1930-7-24 630 Butte Jonesville. 1500 Comment
  CAS-BOT-BC414420  Polygonum douglasii Lowell Ahart 1988-9-4 6182 Butte On the bank of Big Kimshew Creek. About 1 air mile north-east of Jones Meadow 1920 Comment
  UC600496  Polygonum douglasii subsp. douglasii H. F. Copeland 1920-7-24 318 Butte meadow by Colby Creek; Jonesville Comment
  CHSC105516  Polygonum minimum Lowell Ahart 2010-9-28 17267 Butte On damp dark soil, along the east side of Big Kimshew Creek, about 100 yards east of the poor dirt road, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrood Reservoir. 1886 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
  UC1609433  Polygonum parryi Lowell Ahart 1993-6-20 6985 Butte about 1 air mi nw Lost Creek Reservoir Dam; Mooreville Ridge, Jackass Flat 1158 Comment
  CHSC105684  Polygonum polygaloides subsp. kelloggii Lowell Ahart 2010-9-21 17211 Butte Open meadow-like area, 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
  UC1191264  Polygonum punctatum Herbert L. Mason and Verne Grant 1946-9-4 13109 Butte West Gridley Rd 833 Canal Comment
  SEINET10904456  Polygonum punctatum Mary Susan Taylor 1977-8-16 Taylor 1450 Butte Butte College Campus, ca. 15 mi S of Chico. With Marc Hayes. 61 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
  CAS-BOT-BC71859  Polypodium californicum Bruce Hamren 1978-4-24 13 Butte West Branch Feather River, Cherokee Quadrangle 280 Comment
  SEINET10834127  Polypodium californicum Mary Susan Taylor 1979-10-13 Taylor 2254 Butte T22N R4E sw 1/4 sec 21. Riparian Woodland along creek crossing Jordan Hill Road (Ponderosa Way on some maps), ca. 0.8 mi N of its jct with Concow Road, ca. 5 mi E of Paradise. With J.D. Jokerst. 1400 Comment
  CAS-BOT-BC76830  Polypodium glycyrrhiza M. S. Taylor 1980-4-1 2420 Butte Along S side of Butte Creek, ca. 1/4 mi downstream from Honey Run Covered Bridge, ca. 6 mi E of Chico. 121 Comment
  UCD51663  Polypogon interruptus H. F. Copeland 1923-1 s.n. Butte near Nelson. Comment
  CAS-BOT-BC233209  Polypogon maritimus Lowell Ahart 1982-7-18 3681 Butte Along the sides and on the bottom of a small wash, Peter Ahart Ranch, ca. 1.5 miles N and 1.5 miles E of Honcut 50 Comment
  CAS-BOT-BC232571  Polypogon monspeliensis Lowell Ahart 1979-6-2 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  CHSC35658  Polypogon monspeliensis R. E. Preston 1982-4-22 246 Butte On n bank of Western Canal, at jct with the Midway, 0.8 mi s of Nelson. 35 Comment
  CHSC29000  Polystichum californicum M. S. Taylor 1980-4-1 2419 Butte Along s side of Butte Creek, ca. 1/4 mi down stream from Honey Run Covered Bridge, ca. 6 mi e of Chico. 121 Comment
  UC123289  Polystichum californicum Mrs. R. M. Austin May 1883 80 Butte Little Chico Canyon Comment
  SEINET10530116  Polystichum imbricans Mary Susan Taylor 1979-5-4 Taylor 1987 Butte T21N R6E sec 10. Millsap Bar Campground, ca. 9 mi NE of junction of Millsap Bar Road with Brush Creek Road, ca. 26 mi NE of Oroville; Yellow Pine Forest with limestone outcrops. 1006 Comment
  SEINET10530120  Polystichum imbricans Mary Susan Taylor 1979-10-5 Taylor 2232 Butte T23N R4E sec 18. SE side of Paradise Lake (from picnic area to first creek coming into lake, along road), ca. 0.5 mi N of Coutolenc Rd, ca. 5 mi N of Magalia. 732 Comment
  CHSC116277  Polystichum imbricans subsp. curtum Lowell Ahart 2015-10-23 20582 Butte On the south side of Forbestown Resevoir, about 400 yards southeast of the Forbestown Resevoir Dam, about 4 miles (air) northeast of Forbestown. 564 Comment
  CHSC28408  Polystichum imbricans subsp. curtum M. S. Taylor 1979-9-28 2202 Butte Butte county line at Hwy 70, between boundary and Arch Rock tunnel. 487 Comment
  CAS-BOT-BC72294  Polystichum imbricans subsp. imbricans Lowell Ahart 1983-6-26 4122 Butte along Ponderosa Way, about 2 miles southeast of the intersection of the Oroville Quincy Highway and Ponderosa Way 500 Comment
  UC600407  Populus tremuloides H. F. Copeland 1930-7-26 Butte Jonesville Comment
  SEINET10539205  Populus trichocarpa Mary Susan Taylor 1975-8-31 Taylor 896 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
  UC600816  Porterella carnosula H. F. Copeland 1930-7-28 1314 Butte Jonesville Comment
  CHSC42011  Portulaca oleracea Lowell Ahart 1986-11-3 5414 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC55813  Potamogeton diversifolius Vernon H. Oswald; Lowell Ahart 1991-8-28 4856 Butte Impoundment just south of the Clay Pit Area of the Oroville Wildlife Area, on the east side of Larkin Rd, ca. 2 miles south of Hwy 162, Thermalito. In a pond. 39 Comment
  UC1562436  Potamogeton foliosus Lowell Ahart 1990-7-1 6533 Butte on e side of Forbestown Reservoir (on e side of the road, at the Forbestown Generator) 487 Comment
  CHSC46982  Potamogeton foliosus var. foliosus Vernon H. Oswald 1989-9-28 4022 Butte Richardson Springs in the foothills ne of Chico. In a pool in the bed of the East Branch of Mud Creek just above the falls. 213 Comment
  POM193390  Potamogeton gramineus E. B. Copeland 1930-7-28 406 Butte Above Jonesville. In shallow border of lily pond. 1700 Comment
  SD61  Potamogeton gramineus E. B. Copeland 1930-7-28 406 Butte Above Jonesville, shallow border of lily pond 1700 Comment
  CHSC48857  Potentilla anglica Vernon Oswald 1987-5-25 2922 Butte Butte Creek Reserve on the se side of Butte Creek ne of Hwy 99, downstream from the dam for the Durham Mutual Ditch. Along the edge of the stream. 68 Comment
  CHSC46588  Potentilla drummondii V. Oswald; L. Ahart 1989-7-12 3855 Butte Meadow near the headwaters of Big Kimshew Creek, ca. 2 mi (air) sw of Lotts Lake, ca. 3 mi (air) se of Philbrook Reservoir. 1901 Comment
  CHSC45610  Potentilla glandulosa subsp. glandulosa L. P. Janeway 1987-6-5 2138 Butte Along French Cr Rd 5.0 mi from OroQuincy Hwy and Stanwood Saddle. Edge of road. 701 Comment
  JEPS117310  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
  POM197046  Potentilla norvegica subsp. monspeliensis H. F. Copeland 1928-8-22 1066 Butte Jonesville. 1524 Comment
  HSC46104  Proboscidea louisianica J. P. Smith, J. O. Sawyer 1975-7-1 8152 Butte 5 mi. W of Dayton on the Ord Ferry Rd. Comment
  JEPS117525  Proboscidea lutea Lowell Ahart 2010-9-24 17238 Butte Near the east edge of the Golf Course, about 10 yards north of the footbridge, northeast of the Golf Club House, on the north side of Big Chico Creek, Bidwell Park. 94 Comment
  UCSC000640  Prunella vulgaris subsp. lanceolata Kate Conger 1907-1 s.n. Butte Brush Creek Comment
  SFV16940  Prunella vulgaris var. lanceolata J. N. Hogue 1980-9-6 83 .5 Butte Sierra Nevada Toadtown, 4 miles west of Stirling City, along Little Butte Creek. 915 Comment
  CHSC109174  Prunus cerasifera Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18011 Butte 20 yards north of Big Chico Creek, soouth of the path, south of the paved park road,south of the old walnut orchard, south of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. 76 Comment
  JEPS120058  Prunus cerasifera Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17852 Butte Just east of the Deer Pen, near Table 10, Lower Bidwell Park, Chico. Comment
  CHSC110113  Prunus dulcis L. P. Janeway 2012-3-6 10790 Butte Sacramento Valley. Oroville; south side of the Feather River just northwest of Centennial Park. At north edge of bicycle trail along north slope of the levee, at top of steep bank down to the river. 49 Comment
  CHSC38647  Prunus dulcis Vernon Oswald 1983-3-5 113 Butte Upper Bidwell Park, Chico, between the Horse Arena and Lindo Channel. 79 Comment
  POM219500  Prunus emarginata H. F. Copeland 1928-8-18 125 Butte Neighborhood of Jonesville 1524 Comment
  CHSC5987  Prunus laurocerasus M. MacArthur 1968-6-12 138 Butte Along SW wall of PSA building, near NW end, Chico State College campus, Chico. 60 Comment
  CHSC49599  Pseudobahia heermannii Vernon H. Oswald 1990-1-31 4133 Butte Lime Saddle Recreation Area, West Fork of Lake Oroville, near Nelson Bar Rd launch area. Just above high-water level of the lake, just east of the end of the road. 274 Comment
  CHSC37501  Pseudognaphalium beneolens J. D. Jokerst; L. Ahart, M. S. Taylor 1983-1-17 1686 Butte Table Mountain. At the north edge of the mesa. Top of North Table Mt. Comment
  UC478521  Pseudostellaria jamesiana E. B. Copeland 1930-6-24 637 Butte Jonesville 1500 Comment
  CHSC25471  Pseudotsuga menziesii var. menziesii Marc Hayes; Warner 1977-9-11 66 Butte Along Hwy 32 above Forest Ranch, exactly 21.4 mi from Hwy 99 overpass in Chico. 701 Comment
  CAS-BOT-BC361741  Psilocarphus brevissimus var. brevissimus Lowell Ahart 1980-5-4 2160 Butte Thermalito 65 Comment
  CHSC23532  Psilocarphus brevissimus var. brevissimus M. S. Taylor 1976-3-23 1035 Butte Ca. 1/4 mi n of Pine Creek on Pine Creek-Cana Rd, ca. 11 mi no of Chico. 60 Comment
  CHSC82223  Psilocarphus brevissimus var. brevissimus Lowell Ahart 2002-4-14 9487 Butte Area between the Railroad and the Midway Road, 50 yards north of Nelson Dlavo Road, in Nelson. 36 Comment
  CAS-BOT-BC361739  Psilocarphus brevissimus var. brevissimus A. A. Heller 1914-4-24 11315 Butte Chico-Oroville road 7-8 miles from Chico Comment
  UCD80116  Psilocarphus oregonus CNPS SN Foothill Team 2005-4-13 SNFN 0080 d Butte Private Rock Ranch (horse ranch) owned by Chris and Maria Rock, near the SE corner of the south pasture, approximately 25 m from the south fence. 92 Comment
  UCD137841  Pteridium aquilinum var. pubescens A. A. Heller 1916-9-23 12660 Butte Sierra foothills near Forest Ranch. Comment
  CHSC106057  Punica granatum Lowell Ahart; Susan Mason, Josephine Guardino 2010-8-6 17043 Butte In landscaping, at Five Mile Recreation Area, Bidwell Park, Chico. 74 Comment
  CHSC48676  Pyrola aphylla Vernon Oswald 1984-6-14 1289 Butte Cohasset Rd. on Cohasset Ridge, 1.3 mi n of the end of the pavement. 1036 Comment
  CHSC48673  Pyrola picta Vernon Oswald 1987-7-13 3104 Butte Near Jones Creek, ca. .25 mi n of the road connecting Humboldt and Humbug roads, ca. 1.25 mi (air) ne of Jonesville. 1645 Comment
  UC478488  Pyrola picta E. B. Copeland 1931-7-15 669 Butte Jonesville Comment
  SD3510  Pyrola secunda E. B. Copeland 1930-8-7 434 Butte Jonesville 1500 Comment
  CAS-BOT-BC94696  Quercus X howellii John Thomas Howell 1955-6-15 30495 Butte 6 miles from Paradise on road to Pentz 426 Comment
  SEINET13953242 Image available Quercus chrysolepis A. A. Heller 1918-1 Butte Honey Run grade on a north slope in the digger pine and oak belt Comment
  JEPS120044  Quercus ilex Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino, Wes Dempsey 2012-6-7 18175 Butte On the south side of the paved park road, south of Table 35, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CAS-BOT-BC105144  Quercus kelloggii G. P. Rixford 1912-10-1 s.n. Butte Bidwell Ranch, Chico Comment
  CAS-BOT-BC61579  Quercus lobata C. Hart Merriam 1919-11-21 s.n. Butte Chico Comment
  CHSC96641  Quercus lobata Lowell Ahart 2007-3-28 13601 Butte West of North Honcut Creek, about 2 1/2 miles north and 2 2/3 miles east of Honcut, about 12 miles southeast of Oroville. 51 Comment
  RSA134791  Quercus lobata Percy C. Everett, E. K. Balls 1959-10-20 23905 Butte Bidwell Park, Chico. Comment
  UC141898  Quercus lobata Mrs. R. M. Austin Apr 1896 774 Butte near Chico Comment
  CHSC27951  Quercus wislizeni M. S. Taylor 1979-3-20 1937 Butte Ca. 1 mi n of jct of north fork Feather River, along an old road, ca. 10 mi n of Oroville. 304 Comment
  UC5674  Quercus wislizeni W. H. Brewer Oct 1862 1473 Butte Table Mountain, near Oroville Comment
Read comments
Jan 19 2011
  CHSC38444  Quercus wislizeni var. wislizeni Vernon Oswald 1983-3-14 171 Butte Upper Bidwell Park, Chico, on the north rim at the head of the ravine at the Rifle Range. 182 Comment
  CHSC20721  Ranunculus aquatilis var. capillaceus M. S. Taylor 1975-8-31 890 Butte On edge of Ernies Island in Butte Creek, ca. 50 ft s of Humboldt Rd, ca. 1/2 mi e of Butte Meadows. 1341 Comment
  CHSC4566  Ranunculus aquatilis var. capillaceus C. Glascock 1965-1-27 202 Butte In water. Near w boundary of Cuager property, 2723 Oro-Quincy Hwy, Oroville. Comment
  HSC73007  Ranunculus aquatilis var. diffusus M. S. Taylor, L. Ahart 1981-8-15 4183 Butte In and along W Branch of Feather River, 3.4 mi. SW of Snag lake, 11 mi. NE of Stirling City 1616 Comment
  CHSC52776  Ranunculus aquatilis var. hispidulus B. Castro 1982-4-14 16 Butte In stream atop s end of North Table Mtn, off Cherokee Rd ca. 4 mi n of Oroville. 152 Comment
  CAS-BOT-BC378958  Ranunculus bonariensis Lowell Ahart 1978-4-14 s.n. Butte Honcut, Peter Ahart Ranch 50 Comment
  POM150445  Ranunculus hebecarpus A. A. Heller, H. E. Brown 1902-5-6 s.n. Butte Berry Canyon (near Clear Creek). Comment
  CHSC46068  Ranunculus muricatus Kirsten Tarp 1983-5-31 286 Butte Nelson, in lawn in front of the Nelson Post Office. 36 Comment
  CHSC85422  Ranunculus muricatus John Dittes 1992-5-5 474 Butte Sierra Nevada Range Foothills; ca. 2.6 air-miles southeast of Paradise Civic Center, ca. 1.8 air-miles west of West Branch Feather River, ca. 1.3 air-mile northwest of Kunkle Reservoir; slope above tributary drainage of Dry Creek, south of terminus of Libby Road. 445 Comment
  JEPS110344  Ranunculus occidentalis Lowell Ahart 2006-7-16 12997 Butte On the northwest edge of Willow Creek, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1515 Comment
  UC176135  Ranunculus occidentalis A. A. Heller 1913-4-5 10705 Butte above Oroville (n side of Feather River) Comment
  SEINET12091617  Ranunculus occidentalis Unknown 1984-1 6 Butte ca 3/4 mi ne of Centenial and Manzanita avenues. Nw side of road. Chico Quadrangle 15'. NW corner 70 Comment
  CHSC38159  Ranunculus occidentalis var. occidentalis Vernon Oswald 1983-4-27 396 Butte Upper Bidwell Park, Chico, ca. 50 ft n of Upper Park Rd. and 100 ft e of the e entrance to Parking Area S (Brown's Hole). 231 Comment
  CHSC46848  Ranunculus occidentalis var. occidentalis Kirsten Tarp 1983-4-3 249 Butte S part of county, ca. 1.5 mi s of Hurleton. Comment
  CHSC41518  Ranunculus occidentalis var. ultramontanus Kirsten Tarp 1983-8-6 329 Butte Ca. 0.9 mi w of Cherry Hill in n part of county. Next to stream. 1414 Comment
  CHSC52825  Ranunculus occidentalis var. ultramontanus Kirsten Tarp 1982-7-21 215 Butte N part of county at Philbrook Reservoir; at edge of meadow. 1706 Comment
  RSA268507  Ranunculus occidentalis var. ultramontanus J. H. Morrison 1929-06 s.n. Butte Oroville - Quincy, Sierra Nevada. 1829 Comment
  CHSC47040  Raphanus raphanistrum R. A. Schlising 1985-3-23 4459 Butte Richvale Vernal Pools, 1/4 mile s of junction Hwy 162 to Oroville and Hwy 99; along the latter and across from Thermalito Afterbay. Comment
  UCR237330  Raphanus sativus George K. Helmkamp, E. A. Helmkamp 2012-4-14 18744 Butte Northern Sacramento Valley, Robinsons Corner, Simpson Rd, just east of junction of East Gridley Road and CA-70 23 Comment
  SFV10355  Rhamnus californica M. L. Vincent 1963-6-6 375 Butte Sierra Nevada Pentz Road, 5 miles south of Paradise. 330 Comment
  RSA2158  Rhamnus rubra H. F. Copeland 1930-7-26 1379 Butte Jonesville. 1677 Comment
  CHSC108974  Rhododendron Lowell Ahart; John Dittes, Josephine Guardino 2012-4-6 17809 Butte On the north side of Big Chico creek, Lost Park in Bidwell Park, city of Chico. 60 Comment
  UCD117982  Rhododendron occidentale Javier Penalosa 1962-6-18 2457 Butte Near confluence of French and Peavine creeks. 609 Comment
  CHSC45135  Rhynchospora californica Vernon Oswald 1984-6-14 1291 Butte Upper Bidwell Park, Chico, between Upper Park Rd. and Salmon Hole near Parking Area O. 182 Comment
  UC1562393  Rhynchospora capitellata Vernon Oswald and Lowell Ahart 1990-7-31 4424 Butte ca 4 mi n Concow (bordering Concow Road, n side of meadow); Flea Valley 1127 Comment
  CAS-BOT-BC212670  Ribes nevadense A. A. Heller 1939-4-26 15385 Butte Near the river at the foot of the grade leading down from Stirling City Comment
  CAS-BOT-BC212671  Ribes nevadense A. A. Heller 1913-6-7 10823 Butte West Branch of the North Fork of the Feather River near Stirling 914 Comment
  UCSB63912  Ribes nevadense Ahart, Lowell 1997-8-1 Butte on the west side of Little Kimshew Creek; about 1/4 mile east of Table Mountain; about 8 miles (air) northeast of Stirling City 1432 Comment
  SBBG17303  Ribes roezlii M. Vincent 1962-4-15 183 Butte 1 mi S of Stirling City on the Skyway Comment
  UC725920  Ribes roezlii A. A. Heller 1939-4-26 15384 Butte at foot of the grade leading down from Stirling City 914 Comment
  RSA0024710  Ribes roezlii H. F. Copeland 1929-6-11 1237 Butte Jonesville. 1524 Comment
  SEINET12216578  Ribes roezlii M. R. Nichols 1975-1 14 Butte 6.8 mi NE of Chico on Cohasset Rd from Chico Airport 579 Comment
  CHSC109130  Ribes roezlii var. roezlii Lowell Ahart 2012-2-22 17754 Butte On the north side of Ten Mile House Road, about 100 yards northeast of Guardian Trail, about 1/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. 400 Comment
  CHSC81519  Ribes roezlii var. roezlii D. Tellefson 2000-4-18 Butte Paradise Lake, north of Paradise. 700 Comment
  CHSC48903  Ribes viscosissimum var. hallii Vernon Oswald 1987-6-9 2968 Butte Near the headwaters of Scotts John Creek, 3.3. mi n of the connector road between Humboldt and Humbug roads, ca. 4 mi ne of Jonesville. 1926 Comment
  HSC73109  Rigiopappus leptocladus M. S. Taylor 1981-5-21 3770 Butte S side of Concow Rd., ca. 0.5 mi. S of its junction with Ponderosa Way, ca. 20 air mi. N of Oroville 854 Comment
  SEINET10971250  Rigiopappus leptocladus Mary Susan Taylor 1981-5-21 Taylor 3770 Butte T22N R4E nw/nw sec l and ne/ne sec 2, Pulga SW quad. S side of Concow Rd, ca. 0.5 mi S of its jct with Ponderosa Way (Rim Rd), ca. 20 air mi N of Oroville. In reddish weathered serpentine; 2800 ft. 853 Comment
  JEPS102310  Rorippa curvisiliqua Lowell Ahart 2001-4-27 8732 Butte 1 3/4 mi W of Honcut (S side of a road levee, just N of bridge across Wyandotte Creek, N of Lower Honcut Rd, 100 yds W of railroad, 1 1/4 mi E of Hwy 70) 26 Comment
  RSA719205  Rorippa curvisiliqua L. Ahart 2006-6-18 12795 Butte Peter Ahart Ranch, about 2 mile N and 0.5 mile E of Honcut, about 12 miles S of Oroville. 32 Comment
  UC392242  Rorippa curvisiliqua E. B. Copeland 1929-7-29 Butte near Butte Creek House (Jonesville); , near Butte Creek House 1750 Comment
  UC397035  Rorippa curvisiliqua Copeland 1929-7-29 Butte near Butte Creek House; near Butte Creek House 1750 Comment
  CHSC40443  Rorippa curvisiliqua var. occidentalis Lowell Ahart 1985-4-20 4877 Butte On the floor of a rice field, Peter Ahart Ranch, about 2 miles north and 1/8 mile east of Honcut, about 12 miles south of Oroville. 40 Comment
  JEPS108949  Rorippa curvisiliqua var. orientalis Lowell Ahart 2006-9-11 13279 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
  JEPS120616  Rorippa curvisiliqua var. orientalis Lowell Ahart 2013-11-13 19230 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
  CHSC113208  Rorippa palustris var. occidentalis Lowell Ahart 2014-4-25 19396 Butte Sides of a cleaned ditch, on the west side of Richvale South Highway, south of the intersection of Richvale South Road and Richvale South Highway, Richvale. 30 Comment
  CHSC75991  Rorippa palustris var. occidentalis Lowell Ahart; Vernon H. Oswald 1999-8-13 8156 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
  CHSC109085  Rosa banksiae Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17869 Butte Between the edge of the paved road and the back of a home, east of the Deer Pen, between Table 12 and 13 , Lower Bidwell Park, Chico. 65 Comment
  CAS-BOT-BC146437  Rosa bridgesii Helen M. Edwards 1917-6-1 s.n. Butte De Sabla Comment
  SEINET3450729  Rosa bridgesii Unknown 2003-7-12 10373 Butte Oroville, Oroville, about 15 air miles northeast, Both sides of Bald Rock Road, about 3 miles south of the Brush Creek Work Center 1010 Comment
  SEINET8723569 Image available Rosa californica H. S. Reed July 10 297 Butte Sacramento river five miles northwest of Chico, altitude ca. 190 feet, Butte County. 58 Comment
  JEPS103500  Rosa eglanteria Lowell Ahart 2002-6-2 9677 Butte small open meadow S of int. of Black Bart Road and Forbestown Road, 3 air miles SW of Forbestown 670 Comment
  CDA42879  Rosa multiflora L. Ahart 2012-5-17 18075 Butte On the sides of a horse trail, about 20 yards north of Big Chico Creek, southwest of the southwest corner of the old walnut orchard, about 3/5 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  CHSC103228  Rosa multiflora L. P. Janeway; B. Castro 2010-4-30 9970 Butte Sacramento Valley. Lower Bidwell Park, Chico; along southeast side of Big Chico Creek about 160 m northeast of intersection of E. 8th Street and El Monte Avenue. 75 Comment
  UC1562359  Rosa pisocarpa Vernon Oswald and Lowell Ahart 1990-7-5 4346 Butte camping area on creek along F-line Butte Creek (0.4 mi sw of Humboldt Rd, ca 1.5 mi wsw of Butte Meadows) 1316 Comment
  CHSC102197  Rosa pisocarpa subsp. ahartii Barbara Ertter; Lowell Ahart 2007-6-23 19074 Butte Black Bart Road 1.3 miles from lower junction with Forbestown Road, ca 10 airmiles ESE of Oroville. 655 Comment
  CHSC102409  Rosa pisocarpa subsp. ahartii Lowell Ahart 2009-6-19 15921 Butte On dry soil, on the east side of Big Chico Creek, southwest of the meadow, about 30 ayrds 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
  CHSC116712  Rosa pisocarpa subsp. ahartii Lowell Ahart 2016-5-15 20834 Butte On 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
  CHSC91464  Rosa pisocarpa subsp. ahartii Lowell Ahart 2005-7-13 12144 Butte Ditch, about 20 yards south of the intersection of Forbestown Road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown, about 12 miles (air) east of Oroville. 748 Comment
  CHSC100472  Rosmarinus officinalis Lowell Ahart; John Dittes, Josephine Guardino 2008-11-8 15436 Butte On the south side of the gravel road and Big Chico Creek, about 30 yards east of the end of Chico Canyon Road, Upper Bidwell Park, Chico. 68 Comment
  JEPS98374  Rotala indica Lowell Ahart 2000-10-15 8707 Butte 5 air miles S of Oroville (strand of the Thermalito Afterbay, S side of access road to the boat ramp; W of Larkin Road, about 1 1/4 mi S of Oroville Airport) 42 Comment
  CAS-BOT-BC147095  Rubus John Thomas Howell 1959-9-20 34684 Butte Eastern outskirts of Oroville 60 Comment
  CHSC101819  Rubus armeniacus Lowell Ahart 2009-5-23 15771 Butte On the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 203 Comment
  UC861595  Rubus glaucifolius A. A. Heller 1914-7-23 11618 Butte borders Chico meadows 1219 Comment
  CHSC45768  Rudbeckia hirta var. pulcherrima Vernon Oswald 1985-7-30 1913 Butte Oroville-Quincy Hwy 8.0 mi nne of Brush Creek at Merrimac site. In meadow at the head of Peavine Creek. 1219 Comment
  RSA754878  Rumex acetosella L. Ahart 2009-6-19 15940 Butte Open area north of pond and table, about 50 yards south of Ten Mile House Road, Upper Bidwell Park, about 3/4 air miles southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles NE of Chico. 232 Comment
  CHSC111172  Rumex conglomeratus Lowell Ahart 2013-6-18 18805 Butte About 60 yards west of Parking Lot 14, Gray Lodge Wildlife Management Area, about 7 miles (air) southwest of Gridley. 19 Comment
  CHSC34787  Rumex salicifolius var. denticulatus L. Ahart 1981-9-26 3204 Butte On gravel bar along the Sacramento River, ca. 6 mi w of Chico. 40 Comment
  CHSC50030  Sagina decumbens subsp. occidentalis Lowell Ahart 1990-4-15 6459 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
  SD74  Sagittaria cuneata E. B. Copeland 1930-7-29 Butte Above Jonesville. 1700 Comment
  UC426897  Sagittaria cuneata E. B. Copeland 1930-7-29 5 Butte above Jonesville; above Jonesville 1700 Comment
  CAS-BOT-BC445726  Sagittaria latifolia Alice Eastwood 1919-9-9 s.n. Butte Chinese garden, Marysville Comment
  CHSC2052  Sagittaria montevidensis subsp. calycina D. Bower 1953-7-23 Butte 1A Llano Seco. 30 Comment
  CHSC66363  Sagittaria montevidensis subsp. calycina Vernon H. Oswald 1996-6-20 7831 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 S end of Tract 3.4, Sanctuary II. 33 Comment
  CAS-BOT-BC129903  Salix bonplandiana A. A. Heller 1913-4-4 10694 Butte Levee at Oroville Comment
  CAS-BOT-BC129949  Salix bonplandiana Ira L. Wiggins 1925-3-22 1477 Butte Chico Creek Canyon about 5 miles above Chico Comment
  JEPS107337  Salix exigua Lowell Ahart 2005-4-2 11696 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
  JEPS107367  Salix exigua Lowell Ahart 2005-4-14 11709 Butte East of the railroad tracks, north of Spruce Street, Gridley 28 Comment
  SEINET10538833  Salix exigua Mary Susan Taylor 1975-4-26 Taylor 525 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
  CHSC9693  Salix exigua var. exigua E. L. Smith 1971-9-12 1065 Butte On Big Chico Creek at Bidwell Park in 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
  JEPS119597  Salix exigua var. hindsiana Lowell Ahart 2012-4-9 17828 Butte West of South Rim Trail, south part of Upper Bidwell Park, about 2 miles (air) northeast of Chico. Comment
  RSA0045623  Salix exigua var. hindsiana Lowell A. Ahart 2012-4-17 17884 Butte Area where cobbles were removed for Oroville Dam, about 100 yards south of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. 35 Comment
  UC1134894  Salix exigua var. hindsiana P. L. Johannsen 1936-8-12 980 Butte 3/4 mi nw of junction of Chico and Campbell Creeks; Paynes Creek Quadrangle Comment
  RSA0045619  Salix laevigata Lowell A. Ahart 2012-4-9 17848 Butte About 50 feet west of South Rim Trail, south part of Upper Bidwell Park, about 2 1/2 miles (air) northeast of Chico. 209 Comment
  CHSC84643  Salix lasiolepis var. lasiolepis Matt Quinn 2001-4-29 50 Butte Found along edge of Butte Creek approximately 1/4 mile downstream of Steel Bridge on Centerville Road. 158 Comment
  SD925  Salix lemmonii E. B. Copeland 1931-6-11 620 a Butte Jonesville; Kirby's Meadow 1750 Comment
  CHSC31866  Salix lucida subsp. lasiandra L. Ahart 1974-4-11 396 Butte Along North Honcut Creek on dredger tailings; Peter Ahart Ranch, Honcut. 45 Comment
  CHSC42544  Salix melanopsis Lowell Ahart 1987-5-6 5539 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 274 Comment
  CHSC9692  Salix melanopsis E. L. Smith 1971-9-12 1064 Butte On Big Chico Creek at Bidwell Park in Chico. Comment
  UC446425  Salix melanopsis E. B. Copeland 1931-6-30 Butte Jonesville beside Butte Creek 1500 Comment
  JEPS95990  Salsola tragus Lowell Ahart and Vernon H. Oswald 1999-10-3 8295 Butte northwest of Parrott Landing; about 1 mile southeast of Ord Ferry; about 2 miles southeast of Ordbend; about 12 miles (air) southwest of Chico 32 Comment
  CHSC11069  Salvia sonomensis Lowell Ahart 1965-4-15 Butte Robinson Mill Road. 91 Comment
  CHSC77423  Sambucus mexicana Tim Stofer 1997-4-20 19 Butte This plant was located on the east side of the trail 1/4 mi. from the head of the South Rim Trail off South Park Dr. in upper Bidwell Park. 76 Comment
  CHSC24935  Sanicula bipinnata Brad R. Parker 1976-3-20 2 Butte Ca. 10.8 mi nne of Chico, ca. 150 yds off the nw side of the Skyway, below a volcanic mudflow cliff. 259 Comment
  CHSC28871  Sanicula bipinnata M. S. Taylor; J. Jokerst 1980-2-23 2318 Butte Ca. 1/4 mi n of Neal Rd, on north-facing bluffs overlooking Nance Canyon, ca 4 mi sw of Paradise. 198 Comment
  CHSC3167  Sanicula bipinnata Dona Kingsford 1966-3-12 Butte Location: 1.5 miles NE of Hooker Oak Tree in open dry field, Chico. Comment
  CHSC96789  Sanicula bipinnatifida Lowell Ahart 2007-4-30 13711 Butte On the east edge of Jordan Hill Road, about 2 1/2 miles northwest of Concow Creek, about 2 1/2 miles (air) northwest of Concow Reservoir. 637 Comment
  JEPS113192  Sanicula bipinnatifida Lowell Ahart 2007-4-30 13711 Butte On the east edge of Jordan Hill Road, about 2 1/2 miles northwest of Concow Creek, about 2 1/2 miles (air) northwest of Concow Reservoir 637 Comment
  CHSC28642  Sanicula crassicaulis M. S. Taylor 1979-3-31 1971 Butte Jct of Pentz-Magalia Rd and Pentz Rd, ca. 1/4 mi w of Hwy 70, ca. 22 mi n of Oroville. 198 Comment
  UC1605153  Sanicula tuberosa Vernon H. Oswald 1993-4-12 5256 Butte N of Oroville (S wall of Flag Canyon near top of an old track from bottom of canyon onto NW edge of North Table Mountain) 341 Comment
  UC875541  Sanicula tuberosa A. A. Heller 1915-4-12 11807 Butte near Cohasset; Sierra foothills Comment
  CHSC70840  Saxifraga californica Vernon Oswald 1998-3-16 8890 Butte North end of Upper Bidwell Park along lower Jeep Trail paralleling the east side Big Chico Creek north of the old homestead. 243 Comment
  JEPS93968  Saxifraga californica Vernon H. Oswald 1998-3-16 8890 Butte along lower Jeep Trail paralleling the e side of Big Chico Creek (n of the old homestead, n end of Upper Bidwell Park); Upper Bidwell Park 243 Comment
  POM219177  Saxifraga californica H. F. Copeland 1928-4-3 328 Butte Canyon of Butte Creek. Comment
  SEINET10838424  Saxifraga californica Mary Susan Taylor 1975-3-10 Taylor 416 Butte Honey Run Covered Bridge, along Butte Creek, from bridge, on bluffs (S side) down to creek and along creek, returning to bridge; ca. 8 mi E of Chico. Riparian Woodland and Foothill Woodland. 152 Comment
  POM92858  Saxifraga oregana C. C. Bruce 1898-03 2043 Butte [no locality information] Comment
  CHSC29015  Scandix pecten-veneris M. S. Taylor; J. D. Jokerst 1980-4-4 2461 Butte On w side of La Porte Rd, ca. 2 mi n of Bangor. 335 Comment
  JEPS117892  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
  HSC93377  Scandix pecten-veneris L. Ahart 1995-5-30 7586 Butte Edge of Beatson Hollow Creek, about 1 mi. NW of Cherokee Road, N Table Mountain, about 7 mi. N of Oroville 305 Comment
  CHSC28610  Schoenoplectus acutus var. occidentalis M. S. Taylor 1977-9-12 1539 Butte End of Upper Bidwell Park Rd, Upper Bidwell Park, Chico. 243 Comment
  CHSC66366  Schoenoplectus mucronatus Vernon H. Oswald 1996-6-20 7836 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. A seasonal marsh at the SW corner of Tract 2, Sanctuary II. 33 Comment
  UC1594609  Schoenoplectus mucronatus Lowell Ahart 1992-5-23 6773 Butte about 2 mi w Biggs (on the n side of Biggs Princeton Road); w of Biggs 30 Comment
  CHSC56813  Scirpus microcarpus L. P. Janeway 1987-7-4 2414 Butte Along West Branch Feather River at bridge 1.8 mi from Inskip. 1341 Comment
  SEINET10466961  Scirpus validus Mary Susan Taylor 1977-11-12 Taylor 1539 Butte Up to 1/4 mi beyond end of Upper Bidwell Park Road, just out of Upper Bidwell Park, Chico. Foothill Woodland. Comment
  CHSC29091  Scribneria bolanderi M. S. Taylor; J. D. Jokerst 1980-5-15 2633 Butte On Cohasset Ridge, ca. 1/4 mi e of Cohasset Rd, ca. 9 mi ne of Chico. 396 Comment
  SEINET10836220  Scribneria bolanderi Lowell Ahart 1985-5-10 Ahart 4959 Butte 1/2 mile east of Potter Ravine, south of the east branch of Potter Ravine, about 2 1/2 miles north-east of Oroville Dam. Comment
  CHSC52200  Scutellaria californica L. P. Janeway 1988-6-19 2819 Butte Ca 200 ft above Honey Run Rd, 2.6 mi from Humbug Rd; along dirt rd/ firebreak along powerline (3-wire, wooden poles). 274 Comment
  CHSC793  Scutellaria californica 1929-5-19 Butte 5 mi. above Concow on road to Flea Valley (near Stirling). 609 Comment
  SBBG128802  Scutellaria siphocampyloides L. Ahart 2013-5-27 18708 Butte under trees ca. 150 yards E of the intersection of Forbestown Rd and Black Bart Rd, ca. 3.25 mi (air) SW of Forbestown 763 Comment
  CHSC21279  Scutellaria tuberosa M. S. Taylor 1974-4-20 184 Butte On Cohasset Ridge, ca. 1 mi n of Richardson Springs. 274 Comment
  CAS-BOT-BC415018  Sedella pumila A. A. Heller; H. E. Brown 1902-5-7 5486 Butte Berry Canyon (near Clear Creek) Comment
  CHSC10715  Sedella pumila Lowell Ahart 1969-4-8 Butte Table Mountain, Oroville. 396 Comment
  CHSC109160  Sedella pumila Lowell Ahart 2012-5-12 18937 Butte On the south side of Humboldt Trail, about 200 yards east of Guardian Trail, about 1/8 mile west of Highway 32, south part of Upper Bidwell Park, about 7-1/2 miles (air) northeast of Chico. 361 Comment
  SD8318  Sedella pumila R. M. Austin 1883-1 Butte Comment
  CAS-BOT-BC61496  Sedum albomarginatum M. S. Taylor 1982-6-21 4489 Butte On north side of Hwy 70 along Pulga Rd. near Pulga Bridge over Feather River. 20. miles NE of Oroville. 487 Comment
  SEINET10973375  Sedum albomarginatum Mary Susan Taylor 1982-5-21 Taylor 4489 Butte T23N R5E ne/ne sec 6. Pulga Sw quad. On n side of Hwy 70 along Pulga Rd, near Pulga bridge over Feather River, ne of Oroville. On serpentine; 1600 ft. 488 Comment
  CAS-BOT-BC63852  Sedum spathulifolium Helen M. Edwards 1917-6-6 s.n. Butte De Salbla Comment
  CHSC4666  Sedum spathulifolium R. Carter 1966-4-11 332 Butte Found Ca. 1 mi. E of Bidwell Bar along R.R. tracks, just W of R.R. bridge over S Fork. 152 Comment
  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
  CHSC7038  Selaginella hansenii Bryan C. Willingham 1969-2-23 25 Butte Ca 1/2 mi e of Big Chico Creek to s side of Hwy 32 and ca 1 1/2 mi n of Tenmile House site. 539 Comment
  SEINET10530434  Selaginella hansenii Mary Susan Taylor 1981-1-5 Taylor 3371 Butte T21N R4E sw sec 6. Cherokee quad. Ca. 100 ft e of Pentz-Magalia Hwy, ca. 1 mi s of Kunkle Reservoir, ca. 3 mi s of Paradise. Foothill Woodland and Savannah; 1350 ft. 411 Comment
  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
  SEINET10966097  Selaginella hansenii Mary Susan Taylor 1979-3-20 Taylor 1959 Butte T21N R4E nw1/4 sec. 21. Cherokee Quad. Along old road on N side of Hwy 70 following West Branch of the Feather River, which begins at S side of bridge over N fork of Feather River, ca. 10 mi N of Oroville; limestone outcrops within Foothill Woodland. 305 Comment
  CAS-BOT-BC69728  Selaginella wallacei Lowell Ahart 1968-3-13 s.n. Butte Peter Ahart Ranch, Honcut. 45 Comment
  HSC85729  Selaginella wallacei L. P. Janeway 1984-10-20 1187 Butte On outcrop spur ridge making 'Crooked Bar' of the middle fork of the Feather River, near Milsap Bar 579 Comment
  JEPS89349  Senecio Dean W. Taylor 1997-4-9 15967 Butte along Hwy. 70 ca. 2 rd. mi. w. of bridge over the river at Pulga (Feather River Canyon, Plumas Nat'l Forest); Sierra Nevada (nSNF), Plumas Nat'l Forest, Feather River Ca 579 Comment
  POM193091  Senecio cymbalarioides E. B. Copeland 1930-6-27 497 Butte Jonesville. 1550 Comment
  NY233355  Senecio lewisrosei L. S. Rose 1939-6-7 39247 Butte North Fork of Feather River, 3 miles south of Pulga 609.6 Comment
  CDA34707  Senecio sylvaticus L. Ahart 2010-5-2 16707 Butte On both sides of Yahi Trail, east of the dirt road, west of Big Chico Creek, Upper Bidwell Park, about 6 miles (air) northeast of Chico. Comment
  CDA7667  Senecio sylvaticus L. 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. Comment
  JEPS119561  Senecio sylvaticus Lowell Ahart, Susan Bazell, Josephine Guardino, Wes Dempsey, John Dittes 2012-6-28 18234 Butte 10 yards south of Vallombrosa Avenue, northeast of Sycamore Pool, Lower Bidwell Park, Chico. Comment
  UC179694  Senecio triangularis A. A. Heller 1914-7-23 11591 Butte Chico Chico meadows 1219 Comment
  SEINET10473963  Senecio vulgaris Mary Susan Taylor 1975-3-25 Taylor 428 Butte Chico. Comment
  CHSC20121  Sequoiadendron giganteum M. S. Taylor 1975-5-6 562 Butte California State University, Chico. Ca. 60 m s of Holt Hall, ca. 10 m n of Big Chico Creek. 60 Comment
Read comments
Jul 25 2018
  CHSC86849  Sericocarpus oregonensis L. P. Janeway; Gavin Blosser 2003-8-27 7970 Butte Northern Sierra Nevada Foothills. East side of McCabe Creek arm of South Fork Feather River arm of Lake Oroville; 1.0 km (air) south-southwest of the southern end of Enterprise Bridge. 282 Comment
  CAS-BOT-BC263235  Setaria parviflora Lowell Ahart 2007-9-30 14501 Butte West bank of North Honcut Creek, about 1 mile north and 2 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville 32 Comment
  CAS-BOT-BC240120  Setaria pumila John Thomas Howell 1961-9-22 36765 Butte North Fork of Feather River, 10 miles from Oroville Comment
  CAS-BOT-BC240121  Setaria pumila John Thomas Howell 1961-9-22 36735 Butte Bank of Feather River, Oroville 53 Comment
  CHSC38855  Setaria pumila Vernon Oswald 1983-7-8 840 Butte Upper Bidwell Park, Chico, in the bed of Lindo Channel near the flood-control weir. 79 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
  JEPS119993  Sherardia arvensis Lowell Ahart, Linnea Hanson, Kaline Le Coq, Josephine Guardino 2012-4-27 17917 Butte Near the intersection of Centennial Avenue and Manzanita Avenue, Lower Bidwell Park, Chico. Comment
  CHSC24146  Sidalcea calycosa B. Bunge 1976-4-12 9 Butte Growing 25 yd. nw of intersection of Notre Dame Blvd. and Skyway, Chico. 67 Comment
  RSA755757  Sidalcea calycosa subsp. calycosa L. Ahart 2009-5-23 15764 Butte West side of Guardians Trail, just northwest of Pine Trail, Upper Bidwell park, about 3/8 air mile southwest of the intersection of Highway 32 and Ten Mile House Road, bout 10 miles northeast of Chico. 382 Comment
  UC764088  Sidalcea calycosa subsp. calycosa R. F. Hoover 1936-5-21 1164 Butte 7 mi n Chico; n of Chico Comment
  CHSC45943  Sidalcea hartwegii Lowell Ahart 1984-5-7 4594 Butte Growing on a bare hill, east of Kunkle Creek, about 1/2 mile north of Kunkle Reservoir, about 2 miles south of Paradise. 548 Comment
  UC66034  Sidalcea hartwegii A. A. Heller and H. E. Brown 1902-5-9 5512 Butte near Clear Creek; near Clear Creek, Berry Canyon Comment
  HSC87160  Sidalcea hartwegii S. T. Heaston 1982-4-8 17 Butte SE of Chico, 7 mi. SE of the junction of Hwy. 99 and Skyway, 100 m S off of Skyway 305 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
  CHSC34959  Sidalcea hirsuta R. A. Schlising 1981-5-3 4045 Butte N of Chico, slightly E of Highway 99; just N of Meridian Road. Comment
  UC1013145  Sidalcea malviflora subsp. asprella C. L. Hitchcock 1952-5-28 19536 Butte about 8 mi e Oroville (Oroville-Forbestown Road); e of Oroville, Oroville-Forbestown Road Comment
  RSA4491  Sidalcea oregana subsp. spicata E. B. Copeland 1930-7-15 659 Butte Jonesville. Comment
  UC1125000  Sidalcea oregana subsp. spicata P. L. Johannsen 1936-7-21 956 Butte 1 mi ene Chaparral House; Lassen National Forest, Paynes Creek Comment
  UC204466  Sidalcea oregana subsp. spicata A. A. Heller 1914-8-6 11645 Butte Chico Meadows Sierra Nevada at Chico Meadows (Sierra Nevada) 1219 Comment
  SEINET9015716  Sidalcea robusta A. A. Heller, H. E. Brown 1902-5-8 5496 Butte Berry Canyon, near Clear Creek. Comment
  CHSC38301  Silene antirrhina Vernon Oswald 1983-6-5 634 Butte Upper Bidwell Park, Chico, on the north rim overlooking Sycamore Creek Canyon 2000 ft w of the e end of the North Rim Trail. 390 Comment
  CHSC46829  Silene antirrhina R. A. Schlising 1985-6-7 4470 Butte NE part of county, along Hwy 70 in canyon of North Fork, Feather River. On trail from road to river. 487 Comment
  CHSC55053  Silene bernardina Lowell Ahart 1991-9-19 6729 Butte Near where the two branches of Wildcat Creek come together, about 2 miles north-west of Four Trees, about 2 miles north-east of Coyote Gap. 1219 Comment
  CAS-BOT-BC384539  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
  CHSC11073  Silene laciniata subsp. californica Lowell Ahart 1966-5-10 Butte Bidwell Bar. 152 Comment
  CHSC2447  Silene laciniata subsp. californica R. Carter 1965-7-6 277 Butte Found 1.4 mi. N of Mountain House on Oroville-Quincy Rd., on E bank above road. 914 Comment
  CHSC24879  Silene laciniata subsp. californica P. Laherty 1976-4-4 6 Butte On n side of Ponderosa Way, ca. 10 mi w of junc of Ponderosa Way and Hwy 32, ca. 22 mi ne of Chico. 426 Comment
  CHSC35040  Silene lemmonii R. A. Schlising 1981-6-11 4069 Butte S of Butte Meadows along Humboldt Road, 1.9 mi NE of its junction with Hwy 32 at Lomo. Comment
  CAS-BOT-BC181358  Silene occidentalis A. A. Heller 1917-7-26 12820 Butte Butte Meadows 1402 Comment
  CHSC38388  Silybum marianum Vernon Oswald 1983-4-18 329 Butte Upper Bidwell Park, Chico, on the north slope w of Horseshoe Lake. Beside an old jeep trail. 109 Comment
  CAS-BOT-BC135399  Sisyrinchium H. F. Copeland 1920-8-29 165 Butte Jonesville Meadow 1219 Comment
  RSA0116260  Sisyrinchium bellum Lowell A. Ahart 2014-7-10 19619 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1665 Comment
  UC426901  Sisyrinchium bellum E. B. Copeland 1930-8-3 Butte Jonesville 1500 Comment
  UC845083  Sisyrinchium bellum A. A. Heller 1938-7-20 15285 Butte upper end of Snag Lake (7 mi e of Chaparral) 1524 Comment
  POM253045  Sisyrinchium bellum A. A. Heller 1938-7-20 15285 Butte Upper end of Snag Lake, 7 miles east of Chaparral. 1524 Comment
  UC726126  Smilacina stellata A. A. Heller 1919-5-17 13153 Butte near Stirling; Feather River 975 Comment
  JEPS95810  Solanum americanum Lowell Ahart 1999-10-28 8319 Butte about 1 mile southeast of Ord Ferry Ord Ferry; Chico; northwest of Parrott Landing; about 1 mile southeast of Ord Ferry; about 2 miles southeast of Ordbend; about 12 miles (air) southwest of Chico 32 Comment
  NY821149  Solanum parishii E. B. Copeland 1930-7-27 453 Butte Jonesville Comment
  CAS-BOT-BC157461  Solanum umbelliferum M. S. Taylor 1982-5-2 4383 Butte Along Truex Rd, ca. 1/2 mi w of its jct with Hwy 70, ca. 5 mi n of Oroville 365 Comment
  CHSC89491  Solidago velutina subsp. californica R. D. Fischer 2004-8-22 442 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located at bottom of 10 Mile House Road near gated end of park property and up eastern slope. On hillside above mdw and creek. 304 Comment
  JEPS107558  Solidago velutina subsp. californica Lowell Ahart 2005-8-19 12335 Butte In a farmed field, along a small drainage, about 1/8 mile west of Dunstone Drive, about 1 1/2 miles north and 2 7/8 miles east of Honcut, about 12 miles (air) southeast of Oroville 54 Comment
  JEPS127010  Soliva sessilis Lowell Ahart 2016-5-24 20856 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
  CDA7651  Soliva sessilis L. Heinricks 1961-5-15 Butte Curry-Bidwell State Park. 0 Comment
  SEINET10474007  Sonchus asper Mary Susan Taylor 1981-5-14 Taylor 3713 Butte 3200 ft. T21N R6E ne/ne sec 5, Brush Creek quad. S side of 22N49, at jct where creek crosses the rd (next creek E of Little Ram Creek), ca. 1 mi SW of the rds jct with Four Mile Ridge Rd, ca. 0.5 mi N of Mountain House on Oroville-Quincy Hwy. 975 Comment
  CHSC38390  Sonchus oleraceus 1983-5-1 Butte Upper Bidwell Park, Chico, on the north rim ca. 2.0 mi e of the power lines. 390 Comment
  JEPS124183  Sonchus oleraceus Lowell Ahart 2015-1-27 19923 Butte Northwest of intersection of Hazel Street and Virginia Street, Gridley. Comment
  SEINET10474014  Sonchus tenerrimus Lowell Ahart 1984-11-1 Ahart 4832 Butte On damp red soil in garden on Peter Ahart Ranch, ca. 1.5 mi N and 1 mi E of Honcut, ca. 12 mi S of Oroville. 50 m elev. 50 Comment
  SEINET10474015  Sonchus tenerrimus Mary Susan Taylor, Lowell Ahart 1982-10-11 Taylor 5150 Butte T17N R1E n/ne sec 24. Pennington quad. Graylodge Wildlife Refuge, vicinity of check-in station, sw jct of Pennington & Rutherford Rds, ca. 12 mi sw of Gridley. 70 ft. 21 Comment
  CAS-BOT-BC235258  Sorghum bicolor John Thomas Howell 1959-9-26 35094 Butte Roadside at Pulga Bridge, N. Fk. Feather River Comment
  CHSC108150  Sorghum halepense L. P. Janeway 2011-8-18 10662 Butte Northern High Sierra Nevada. Plumas National Forest; top of Bloomer Hill. In areas where mixed conifer forest has been greatly thinned and the resulting understory shrubs have been cleared several years ago. In an open graveled area. 912 Comment
  CHSC6055  Sorghum halepense M. MacArthur 1968-6-19 238 Butte Ca. 15 ft. SE Big Chico Creek, opposited LS bld., Chico State College. 60 Comment
  CHSC9344  Sorghum halepense B. Anthony 1968-5-8 513 Butte 2 miles E. of Hamilton City, Hwy. 32. Comment
  CAS-BOT-BC390130  Spergularia bocconi Lowell Ahart 1981-5-16 2799 Butte Sutter Buttes Region. Along edge of dirt roads on the Gray Lodge Waterfowl Management Area, 11 miles southwest of Gridley 35 Comment
  SEINET10537506  Spergularia rubra Lowell Ahart 1983-8-16 Ahart 4309 Butte T26N R4E section 32? On dry dark soil in a small mountain meadow, near Bull Hill Rd, ca. 3.5 mi south of Butte Meadows. Yellow Pine Forest; l600 m. 1600 Comment
  SEINET10483626  Spiraea douglasii Lowell Ahart 1983-9-17 Ahart 4440 Butte T24N R4E section 34. Ca. 1/4 mi se of Stirling City. Yellow Pine Forest; 1100 m. 1100 Comment
  CHSC27193  Spiraea prunifolia P. Moyer 1972-3-2 96 Butte CSUC Campus. Lassen Hall Bridge, Citrus Ave. 60 Comment
  CHSC99477  Spiranthes porrifolia Lowell Ahart 2008-6-13 14825 Butte Small meadow, bottom of an old gold mined area, about 350 yards southwest of the cemetery, about 50 yards north of Oregon gulch, about 10 miles (air) northeast of Oroville. 305 Comment
  CHSC88186  Spiranthes romanzoffiana Lowell Ahart 2004-8-2 11325 Butte Small bog in a large meadow, about 200 yards east of Keyser Creek, on the north side of the dirt County Road, about 3/4 mile (air) northeast of Oak Point, about 1/2 mile (air) west of Big Kimshew Creek, about 1 3/4 miles southeast of Bald Mountain. 1452 Comment
Read comments
Sep 6 2011
  UCD150368  Spiranthes romanzoffiana William Anderson 1965-6-6 s.n. Butte Table Mtn. 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
  CHSC52069  Stachys ajugoides var. rigida B. Castro; L. P. Janeway, R. A. Schlising 1988-7-30 283 Butte Ca 20 ft n of road on sw-facing slope above Coon Hollow. 1926 Comment
  CHSC52076  Stachys pycnantha B. Castro 1988-6-5 261 Butte Upper Little Chico Ck Cyn. 243 Comment
  CHSC99474  Stachys pycnantha Lowell Ahart 2008-7-23 15146 Butte North edge of the South Fork of the Feather River, about 10 yards east of where Sucker Creek enters the South Fork of the Feather River, below the high water line of Lake Oroville, about 1/4 mile west of the Ponderosa Dam. 258 Comment
  CHSC26645  Stachys stricta M. S. Taylor 1977-11-12 1534 Butte In Devil's Kitchen, Upper Bidwell Park, Chico. 243 Comment
  RSA0041904  Stellaria longipes subsp. longipes H. F. Copeland 1931-6-10 s.n. Butte Jonesville. Gulch draining into Colby Canyon. 1524 Comment
  CHSC26854  Stellaria longipes var. longipes M. S. Taylor; M. Hayes 1978-6-24 1655 Butte In meadow, on n side of Scotts John Rd, ca. 3 mi e of its juct with Old Humboldt Rd, ca. 5 mi e of Jonesville. 1676 Comment
  CHSC115471  Stellaria media L. P. Janeway 2015-2-18 11633 Butte Northern High Sierra Nevada. Plumas National Forest; along Ponderosa Way 4.3 road-km north of Lower Forbestown Road; 2.7 air-km north of Sunset Hill; north-facing side of the canyon above the upper end of South Fork Feather River arm of Lake Oroville. 483 Comment
  JEPS118041  Stellaria media Lowell Ahart 2011-6-3 17361 Butte Wood chipped planter area between Bidwell Mansion parking area and Gateway Science Museum, Chico 60 Comment
  JEPS87498  Stellaria obtusa Lowell Ahart 1993-9-13 7229 Butte about 1 mi se Butte Meadows (on s side of Bolt Creek) 1325 Comment
  RSA0118747  Stephanomeria elata Lowell Ahart 2014-8-24 19725 Butte On the north side of the road, about 150 yards southwest of the Forbestown Reservoir Dam, about 4 miles (air) northeast of Forbestown. 577 Comment
  CHSC11835  Stephanomeria lactucina E. B. Copeland 1930-7-24 500 Butte Jonesville. 1550 Comment
  CHSC61299  Stephanomeria paniculata Lowell Ahart 1993-8-8 7153 Butte Near Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC62436  Stephanomeria paniculata L. P. Janeway 1993-9-7 4587 Butte Plumas National Forest. About 300 ft west of the south end of Ponderosa Dam. Along the edge of the dirt road. 298 Comment
  SEINET10934981  Stipa lemmonii Lowell Ahart 1985-5-15 Ahart 5004 Butte 1/8 mile east of the dirt road, about 1 1/2 miles north-east of Concow of Reservoir. Comment
  SEINET10603897  Stipa lettermanii K. Bridwell 1978-2-28 Bridwell 48 Butte Along Oakway Rd., 5 mi. ENE of Magalia, E of Feather River. Foothill Woodland. 762 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
  CDA11951  Streptanthus diversifolius G. F. Hrusa, J. Hart 1989-4-15 5921 Butte Sierra Nevada; Central portion of North Table Mountain. Comment
  CHSC33221  Streptanthus longisiliquus R. A. Schlising 1981-6-11 4085 a Butte North of Cohasset near county line. 1097 Comment
  CHSC39408  Streptanthus longisiliquus L. Ahart 1983-9-17 4434 Butte Along edge of dirt road, ca. 2.5 mi s of Stirling City. 1100 Comment
  CHSC93961  Streptanthus longisiliquus R. D. Fischer 2004-6-20 757 Butte Sierra Nevada Mountains, north-east corner of Butte County and ca. 2 miles west of Butte Meadows on Humboldt Road. Plants collected roadside off eroded, gravelly volcanic soil. 1417 Comment
  CHSC40446  Streptanthus polygaloides Lowell Ahart 1985-5-15 4975 Butte West of Lunt Road, about 1/2 mile north of the intersection of Lunt Road and Highway 70, north of Yankee Hill. 502 Comment
  CAS-BOT-BC87436  Streptanthus polygaloides Lincoln Constance 1941-5-28 2826 Butte Sierra Nevada Foothills. South Branch of the Feather River at magalia. 487 Comment
  CAS-BOT-BC87514  Streptanthus tortuosus A. A. Heller 1938-4-14 15031 Butte Top of Table Mountain. 304 Comment
  CHSC48353  Streptanthus tortuosus Vernon Oswald 1985-5-28 1783 Butte Little Bald Rock near Bean Creek Rd. 0.3 mi e of Bald Rock Rd. 1011 Comment
  SEINET10448523  Streptanthus tortuosus Mary Susan Taylor 1976-4-24 Taylor 1071 Butte Abundant on Big Bald Rock, ca. one quarter mi W of Bald Rock Rd, ca. 3 mi E of Lake Madrone, ca. 13 mi NE of Orovil le; with Quercus chrysolepis. 998 Comment
  CHSC4639  Streptanthus tortuosus var. suffrutescens R. Carter 1966-4-21 353 Butte Found ca. 5 mi. NE of Oroville on top Table Mt.; growing 4 yds. off E side Old Cherokee Rd., 5.4 mi. from Chico Rd. Comment
  CHSC95097  Streptopus amplexifolius var. americanus L. P. Janeway 2006-8-6 8833 Butte Northern High Sierra Nevada. Nea road along west side of lower Pinkard Creek, 1.2 road mi north of Lost Creek Reservoir dam. Along small creeklet near road. 1021 Comment
  UC1609006  Streptopus amplexifolius var. americanus Lowell Ahart 1993-9-13 7232 Butte about 1 mi se Butte Meadows (banks of Bolt Creek); Bolt Creek 1325 Comment
  CAS-BOT-BC48062  Styrax redivivus Mrs. J. H. Morrison 1932-5-8 s.n. Butte Durham Comment
  UCD99541  Suaeda calceoliformis William Anderson 1959-10-7 s.n. Butte Edge of dike along West Liberty Road, Gray Lodge Wildlife Management Area, Gridley. 365 Comment
  CHSC88057  Swertia albicaulis var. nitida R. D. Fischer 2004-5-30 183 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
  JEPS7824  Swertia albicaulis var. nitida Rimo Bacigalupi with Richard Hauke and Georgie Bacigalupi 1954-7-15 4720 Butte 0.3 mi e Nimshew (along Nimshew road, 1.1 mi below its junction with main Magalia-Tirling road) 792 Comment
  POM219498  Symphoricarpos acutus H. F. Copeland 1928-8-14 97 Butte Jonesville, near Jones Creek. Comment
  CHSC34784  Symphyotrichum chilense Lowell Ahart 1981-8-31 3062 Butte Ca 150 m W of the dam at Wyandotte Lake, ca 8 mi W of Oroville. 450 Comment
  CHSC51351  Symphyotrichum chilense Vernon H. Oswald 1990-10-4 4455 Butte Rancho Llano Seco. Ord Ferry Rd, ca 1 mile southeast of Ord Ferry Bridge. Field between the road and the Sacramento River 30 Comment
  JEPS40842  Symphyotrichum spathulatum Duncan Dunning 1921-7-29 Butte Butte Meadows Comment
  CHSC46610  Symphyotrichum spathulatum var. intermedium Vernon H. Oswald 1989-7-27 3899 Butte Meadow at Butte Creek House, ca. 3.3 mi (air) SE of Jonesville. 1767 Comment
  CHSC65418  Symphyotrichum spathulatum var. spathulatum Vernon H. Oswald 1983-8-17 978 Butte Near Humboldt Rd. between Butte Meadows and Jonesville at the Hct. of Colby, Willow, and Butte creeks. 1493 Comment
  CAS-BOT-BC98327  Symphyotrichum subulatum var. parviflorum Lowell Ahart 1974-11-12 s.n. Butte Peter Ahart Ranch, Honcut 45 Comment
  UCD136687  Symphyotrichum subulatum var. parviflorum E. M. Johnston 1915-1 s.n. Butte Biggs. Comment
  CHSC97013  Tanacetum parthenium L. P. Janeway 2007-6-19 9066 Butte Northern High Sierra Nevada. Plumas National Forest; along Ponderosa Way 2.1 road km south of Ponderosa Dam; 1.2 air km south-southwest of Ponderosa Dam and South Fork Feather River. 396 Comment
  CAS-BOT-BC376888  Taraxacum officinale Lowell Ahart 1979-4-11 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  SEINET11793729  Taraxacum officinale Unknown 1966-1 37 Butte Chico, East 5th & Olive Streets Comment
  CHSC103970  Tauschia hartwegii Lowell Ahart 2010-5-7 16631 Butte On south side of Guardian Trail, about 1/4 mile west of Highway 32, Upper Bidwell Park, about 4 3/4 miles (air) northeast of Chico. 301 Comment
  JEPS14512  Tauschia hartwegii Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1956-4-19 5606 Butte along Oroville-Concow road 0.9 mi below its junction with Yankee Hill Road 521 Comment
  CHSC73734  Tauschia kelloggii B. Castro 1997-4-30 726 Butte Ca 2.2 air mi NE of Brush Creek and 1 mi ENE of Mtn. House, on S-facing slope of ridge overlooking Mtn House Creek. On n edge of USFS Rd 22N54, ca 1.1 rd mi E of the Oro-Qunicy hwy, at base of road cut. 1066 Comment
  SEINET10471602  Taxus brevifolia Lowell Ahart, Peter Ahart 1985-7-9 Ahart 5115 Butte About 1/2 mile west of Lumpkin Ridge Road, about 2 1/2 miles north-east of Camp 18, about 9 miles north-east of Feather Falls. Comment
  RSA304699  Tellima grandiflora James R. Shevock 1972-5-19 1787 Butte Feather River Cyn. 625 Comment
  SEINET5334384  Tetrapteron graciliflorum K. Conger 1908-1 s.n. Butte Brush Creek Comment
  JEPS119991  Thalictrum fendleri var. polycarpum Lowell Ahart 2012-4-30 17946 -A Butte On the south side of the path, near sign, southwest of the intersection of Vallombrosa Avenue and Manzanita Avenue, Lower Bidwell Park, Chico. Comment
  CHSC34151  Thelypteris nevadensis L. Ahart 1981-9-15 3154 Butte Along the sides of Pinkard Creek, ca. 1/2 mi n of the Lost Creek Reservoir. 1100 Comment
  CHSC19945  Thysanocarpus curvipes M. S. Taylor 1975-3-10 413 Butte On bluffs overlooking Butte Creek, ca. 1/4 mi sw of Covered Bridge, ca. 8 mi e of Chico. Comment
  SEINET10448591  Thysanocarpus curvipes Mary Susan Taylor 1982-5-2 Taylor 4389 Butte T23N R5E ne/ne sec 6. Pulga Sw quad. Pulga serpentine outcrops on both sides of bridge across Hwy 70 at Pulga, ca. 20 mi ne of Oroville. 1600 ft. 488 Comment
  CHSC100975  Thysanocarpus curvipes var. curvipes L. P. Janeway 2008-3-18 9233 Butte Cascade Range Foothills. East edge of City of Chico; south side of Humboldt Road 1.3 km northeast of Bruce Road. 123 Comment
  CHSC24965  Thysanocarpus curvipes var. curvipes J. Cox 1976-3-10 45 Butte N Table Mt. Ca 300 yds n of Cherokee Rd, 4.3 mi ne of Oroville. 426 Comment
  CHSC65491  Thysanocarpus radians Ron P. Garcia 1995-3-31 1 Butte Ca. 100 ft w of Rabe Rd, ca. 1.1 mi e of Larkin Rd, ca. 4 mi sw of Oroville. Fernandez Land Grant. 47 Comment
  CHSC90605  Thysanocarpus radians Jose Romero 1983-4-20 6 Butte Site located on the Oroville Wildlife Area. Junction of Larkin and Timothy Roads, 4 mi southwest of Oroville. 45 Comment
  JEPS43468  Thysanocarpus radians Joan Danielson 1966-4-6 9 Butte Cherokee Road on way to Table Mt. 1 mi s Cherokee; on way to Table Mt. 609 Comment
  SEINET12050273  Tofieldia glutinosa L. Ahart, Ahart, P. 1984-1 4758 Butte about 1/2 mi E of Bald Mountain, about 5 mi NE of Stirling City 1750 Comment
  UC195475  Tonella tenella A. A. Heller 1914-3-12 11197 Butte e of Chico (in canyon of Big Chico Creek) 68 Comment
  JEPS113177  Torilis arvensis subsp. purpurea Lowell Ahart 2007-5-29 13948 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
  RSA726856  Torilis arvensis subsp. purpurea L. Ahart 2007-5-29 13948 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
  CDA42895  Torilis nodosa L. Ahart 2012-6-5 18171 Butte On the north side of the creek, on the bottom of Beatson Hollow, about 1 mile northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 6 miles (air) north of Oroville. Comment
  CHSC33799  Torreya californica M. S. Taylor 1981-4-28 3568 Butte Ca. 1/10 mi n of rd 23N28.2, ca. 500 ft e of Chico Creek, ca. 4 air mi e of Jarbo Gap on Hwy 70, ca. 23 air mi nw of Oroville. 853 Comment
  SEINET10471667  Torreya californica Mary Susan Taylor 1980-5-8 Taylor 2616 Butte T24N R3E e half nw sec 33. Paradise quad. Ca. 3 mi N of Forest Ranch, ca. 1 mi E of Hwy 32; area soon to be deve loped; Yellow Pine Forest. 853 Comment
  CHSC44300  Toxicoscordion venenosum var. venenosum V. Oswald; L. Ahart 1988-6-17 3397 Butte North side of the dam at Lost Creek Reservoir. 1005 Comment
  CHSC33756  Trichostema lanceolatum S. Posner 1972-10-12 Butte Upper Bidwell Park, 1 mile west of golf course entrance, Chico. Comment
  JEPS95022  Trichostema lanceolatum Lowell Ahart 1997-9-6 7891 Butte about 3 1/2 air mi ne of Concow Reservoir (on nw side of intersection of Concow Road and Oakway, at Flea Valley, about 1/2 mi w of Flea Mountain); Flea Valley 792 Comment
  HSC40918  Trichostema lanceolatum J. O. Sawyer 1975-9-20 2704 Butte Bruce Rd. between Humboldt Rd. and Skyway E of Chico Comment
  CHSC37258  Trichostema oblongum L. Ahart 1982-6-15 3575 Butte On a lava cap, ca. 1.5 mi e of Camp 18, ca. 8 mi e of Feather Falls. 1000 Comment
  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
  CHSC48669  Trientalis latifolia Vernon Oswald 1984-5-21 1193 Butte Doon Campground on the Skyway, 1.0 mi e of Coutolenc Rd. at Lovelock. 853 Comment
  RSA325142  Trifolium albopurpureum M. S. Taylor, V. Oswald, B. Taylor 1984-4-4 5389 Butte S side of Humbug Rd, 3.1 mi W of Nimshew, ca 10 airmiles NE of Chico. Comment
  UC725898  Trifolium albopurpureum var. olivaceum A. A. Heller 1938-4-11 15022 Butte near Chico airport (field) Comment
  CHSC31833  Trifolium bifidum var. bifidum L. Ahart 1980-4-21 2102 Butte Ca. 1.5 mi n and 2.7 mi e of Honcut, Peter Ahart Ranch, Honcut. 50 Comment
  SBBG128735  Trifolium bifidum var. bifidum L. Ahart 2012-5-12 18026 Butte N of a deep drainage, N of the large meadow, ca. 300 yards SW of Ten Mi House Rd, ca. 0.5 mi (air) W of Hwy 32, S part of Upper Bidwell Park, ca. 9 mi (air) NE of Chico 268 Comment
  SBBG128799  Trifolium bifidum var. bifidum L. Ahart 2012-5-12 18034 Butte sides of S Rim Trail, ca. 0.5 mi SW of the old homestead, ca. 3/4 mi W of Hwy 32, S part of Upper Bidwell Park, ca. 8 mi (air) NE of Chico 256 Comment
  CHSC113423  Trifolium breweri Lowell Ahart 2014-7-7 19572 Butte South of the intersection of Humbug Road and Philbrook Road, about 2 miles (air) northwest of Philbrook Reservoir. 1597 Comment
  UC600392  Trifolium breweri H. F. Copeland 1928-8-29 1011 Butte neighborhood of Jonesville (Jones Creek Canyon) Comment
  UC600393  Trifolium breweri H. F. Copeland 1932-6-28 Butte Butte Creek Jonesville Comment
  CHSC90839  Trifolium cernuum Lowell Ahart 2005-5-6 11785 Butte In corral, Peter Ahart Ranch, about 1 1/2 miles north and 1 1/8 miles east of Honcut, about 12 miles (air) southeast of Oroville. 39 Comment
  SBBG67153  Trifolium ciliolatum A. A. Heller 1926-4-21 13924 Butte Rock Crk, 7 mi N of Chico Comment
  SEINET10841156  Trifolium ciliolatum Lowell Ahart 1985-5-10 Ahart 4950 Butte East branch of Potter Ravine, about 2 1/4 miles north of Oroville Dam. Comment
  UCD108339  Trifolium depauperatum Michael A. Vincent; Ethan H. Freid, Don Banks 1998-4-5 8105 Butte Table Mountain. Comment
  HSC92491  Trifolium depauperatum Jeanne McFarland, Kathie Meyer, Anne Mullenniex 1995-4-9 40 Butte 3 mi NE of Chico in Bidwell Park 290 Comment
  UC631068  Trifolium depauperatum var. amplectens A. A. Heller 1913-4-7 10733 Butte 6 mi n Oroville Comment
  CHSC114955  Trifolium depauperatum var. depauperatum Lowell Ahart 2015-3-27 19981 Butte About 3/8 mile northeast of CoalCanyon Falls, about 1-1/8 miles (air) northwest of the improved parking area, North Table Mountain, about 8 miles north of Oroville. 388 Comment
  CDA43073  Trifolium dubium L. P. Janeway, B. Castro 2011-6-5 10360 Butte Cascade Range Foothills.; East side of Chico; along south side of Humboldt Road 2.1 road km east of Bruce Road. Comment
  CHSC48578  Trifolium dubium Vernon Oswald 1986-4-30 1992 Butte Upper Bidwell Park, Chico, along Yahi Trail just south of Parking Area N at Salmon Hole. 158 Comment
  JEPS94823  Trifolium dubium Lowell Ahart 1998-6-9 7979 Butte about 7 air mi n Oroville (on s side of the ione oak tree, about 50 yards nw of the cow chute along Cherokee Road); North Table Mountain 403 Comment
  CDA43072  Trifolium glomeratum L. P. Janeway, B. Castro 2011-6-5 10359 Butte Cascade Range Foothills.; East side of Chico; along south side of Humboldt Road 2.1 road km east of Bruce Road. Comment
  CHSC26399  Trifolium hirtum D. Farrell 1974-4-30 23 Butte Collected off Cohassett Hwy, ca. 4 mi n of Chico. Comment
  CHSC77426  Trifolium hirtum Laura Bogni 1997-4-5 10 Butte Magalia grove. West side of Coutelenc Rd.; 1 mi. due W of Sawmill Peak; 1/2 mi. SE of Magalia Reservoir. 640 Comment
  SFV11549  Trifolium hirtum M. L. Vincent 1965-4-16 629 Butte Pentz Road, 0.5 miles east of Pentz school. Comment
  CHSC65693  Trifolium jokerstii Vernon H. Oswald 1996-3-28 7275 Butte Sacramento Valley. Locally common to abundant in swales and depressions in pastures along Cottonwood Rd. from ca. 2 mi to 3.4 mi E of Hwy. 99 (collected just inside the fence on the S side of the road, 2.6 mi E of Hwy. 99, 0.2 mi E of the entrance to the PG and E Substation). 48 Comment
  CHSC92556  Trifolium microcephalum L. P. Janeway 2005-4-25 8365 Butte Northern High Sierra Nevada. Plumas National Forest; near top of north end of Rocky Ridge; uppermost slope of northeastern tributary to Concow Reservoir; about 40 m south of Rim Road (Ponderosa Way). 951 Comment
  CHSC96794  Trifolium microcephalum Lowell Ahart 2007-4-30 13709 Butte On the north side of Jordan Hill Road, about 2 miles northwest of Concow Creek, about 2 miles northwest of Concow Reservoir. 484 Comment
  JEPS119705  Trifolium microcephalum Lowell Ahart 2012-5-2 17971 Butte West of the Government Pole Line, Upper Bidwell Park, about 1 mile east of Chico. Comment
  CHSC28683  Trifolium subterraneum M. S. Taylor 1979-5-6 2009 Butte Peter Ahart Ranch, Honcut. 45 Comment
  SEINET10904025  Trifolium tridentatum Melvin L. Conrad, David B. Dunn; Douglas G. LeDoux 1973-6-5 Conrad 7040 Butte Jarbo pass on hwy 70. Yellow pine, california buckeye, shrubby lupine. 701 Comment
  CDA14091  Trifolium variegatum var. geminiflorum G. F. Hrusa, T. D. Wilfred 1997-7-3 13976 Butte Sierra Nevada; NE side of upper end of Paradise Lake where last tributaries from E enter. Comment
  UC176293  Trifolium variegatum var. melananthum A. A. Heller 1913-3-9 10684 Butte 2 mi n Oroville (hills) Comment
  CHSC109158  Trifolium variegatum var. variegatum Lowell Ahart 2012-5-12 18024 Butte On the east side of Ten Mile House Road, about 50 yards northeast of the Guardian Trail, about 1/4 mile (air) west of Highway 32, south part of Upper Bidwell Park, about 9 miles (air) northeast of Chico. 423 Comment
  CHSC50044  Trifolium variegatum var. variegatum Lowell Ahart 1990-4-15 6458 Butte Growing 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
  JEPS119710  Trifolium variegatum var. variegatum Lowell Ahart 2012-5-2 17964 Butte About 30 yards west of the Easter Cross Parking Lot, Upper Bidwell Park, about 1 mile east of Chico. Comment
  SEINET4178576 Image available Trifolium watsonii A. A. Heller 1938-5-4 15059 Butte Near the covered bridge over Butte Creek east of Chico. Comment
  CHSC115443  Trifolium willdenovii M. Sutton; C. Yasuda, S. Luse 2013-4-9 24 Butte Centerville Flumes. 350 Comment
  UC176292  Trifolium willdenovii A. A. Heller 1913-4-6 10712 Butte e Chico (hills near Big Chico Creek) Comment
  CHSC113478  Trifolium wormskioldii Lowell Ahart 2014-7-13 19651 Butte West part of a large wet meadow (some bog), about 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC52139  Triphysaria eriantha Ethel Pearson 1978-4-18 12 Butte Ca. 12 mi n of Chico and State Hwy 99 at Broyles Rd. 67 Comment
  UCD123392  Triphysaria eriantha P. Thompson 1996-4-14 6 Butte Oroville, Cherokee Rd., approx. 1 kilometer south of Oregon Rd. 210 Comment
  CHSC1833  Triphysaria pusilla R. Carter 1965-4-12 180 Butte Found at 6120 W. S. R., Oroville, 10 yds. from house on W side of driveway. 274 Comment
  CAS-BOT-BC199592  Trisetum canescens H. F. Copeland 1932-7-21 s.n. Butte Jonesville 1600 Comment
  SEINET10507652  Trisetum spicatum Mary Susan Taylor 1979-7-21 Taylor 2155 Butte Humboldt Peak, at Humboldt Summit, tallest point in the county, on Butte- Tehama County line. 2155 Comment
  CAS-BOT-BC521212  Triteleia bridgesii C. C., Mrs. Bruce 1897-5-1 s.n. Butte Foothills Comment
  CHSC2078  Triteleia hyacinthina N. Maxwell 1929-4-18 Butte Richardson Springs. 274 Comment
  CHSC29093  Triteleia hyacinthina M. S. Taylor; J. D. Jokerst 1980-5-15 2625 Butte On Cohasset Ridge, ca. 1/4 mi e of Cohasset Rd, ca. 9 mi ne of Chico. 396 Comment
  CHSC44962  Triteleia hyacinthina E. Ray Latham 1988-4-21 Butte Population 100m e of e end Fremont St., Chico. 30 Comment
  SEINET223501 Image available Triteleia hyacinthina Barbara Ertter, Lowell Ahart; Jeff Strachan 1980-5-6 3276 Butte Peter Ahart Ranch about 2.5 miles north-northeast of Honcut between Oroville and Marysville 30 Comment
  CAS-BOT-BC521543  Triteleia hyacinthina Clare B. Hardham 1978-4-17 21569 Butte Table Mountain Comment
  HSC32410  Triteleia ixioides subsp. anilina Dave Knorr 1974-4-20 131 Butte Oroville's Table Mtn. near Cherokee Rd. Comment
  CHSC118506  Triteleia ixioides subsp. scabra L. P. Janeway 2016-5-9 11956 Butte Northern High Sierra Nevada. Plumas National Forest; upper north-facing slope above the South Fork Feather River arm of Lake Ovoville, 0.4 km northwest of the junction of Ponderosa Way and Road 19N19. 701 Comment
  CHSC4642  Triteleia ixioides subsp. scabra R. Carter 1966-4-26 365 Butte Found ca. 10 mi. NE of Oroville above W side USFS road 21N40 to Bloomer Mt. Above road 1.2 mi. from intersection with Oroville-Quincy Rd. Comment
  UC843612  Triteleia ixioides subsp. scabra A. A. Heller 1915-5-25 11895 Butte ridge above Enterprise; Sierra Nevada 609 Comment
  SEINET10472682  Triteleia ixioides subsp. scabra Mary Susan Taylor 1980-5-27 Taylor 2728 Butte N side of Oroville-Quincy Hwy, ca. 2 mi S of Lake Madrone. 610 Comment
  CHSC4251  Triteleia laxa J. W. Cherry 1967-3-26 Butte Ca. 50 yds. S. of Bidwell Park road, 0.3 mi. e. of Salmon Hole. 170 Comment
  CHSC88862  Triteleia laxa Christine Hantelman 2000-4-2 58 Butte 1.25 mi east on south side of Wookey Road. On north side of vernal pool. 112 Comment
  HSC38021  Triteleia laxa Thomas W. Nelson, Jane P. Nelson 1976-5-10 2481 Butte S facing slope beside Hwy. 191, 1 mi. W of Paradise Comment
  SEINET10533663  Triteleia laxa Laurel L. Huey 1980-4-21 Huey 6 Butte T22N R2E sec 25, (Hamlin Canyon Quad. 7.5') Ca 80 m se of Butte Creek at Covered Bridge in open area on canyon slope with Clarkia purpurea and Lomatium utriculatum. 125 Comment
  CHSC21266  Triteleia lilacina M. S. Taylor 1973-4-21 11 Butte Ca. 7 mi s of Hwy 70, on Cherokee Rd, ca. 5 mi s of Cherokee, on Table Mountain. 373 Comment
  JEPS127088  Tuberaria guttata Lowell Ahart 2016-4-15 20745 Butte About 1/2 mile southwest of Dutch Ravine, about 8 miles (air) southeast of Oroville. Comment
  CHSC31861  Typha angustifolia L. Ahart 1977-7-10 1462 Butte On bottom of slough; Peter Ahart Ranch, Honcut. 50 Comment
  CHSC3355  Umbellularia californica Robert L. Smith 1966-3-6 6 Butte Bidwell Park about 5 miles NE of Chico. Comment
  CHSC77433  Umbellularia californica Laura Bogni 1997-3-25 4 Butte Magalia grove; west side of Coutelenc Rd.; 1 mi due W of Sawmill Peak; 1/2 mi. SE of Magalia Reservoir. 701 Comment
  SEINET10475765  Umbellularia californica Mary Susan Taylor 1980-5-27 Taylor 2664 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
  CHSC29987  Uropappus lindleyi J. D. Jokerst 1980-3-30 531 Butte N of the tip of North Table Mt. 304 Comment
  CHSC63241  Urospermum picroides Lowell Ahart 1994-4-29 7290 Butte Dredge trailings, on the west side of North Honcut Creek, about 2 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles south-east of Oroville. 54 Comment
  JEPS104339  Urospermum picroides Lowell Ahart 2003-5-14 10176 Butte On the w side of North Honcut Creek, ca 2 1/2 mi n and 2 2/3 mi e of Honcut, ca 12 mi se of Oroville. 60 Comment
  CAS-BOT-BC194020  Vaccinium cespitosum E. B. Copeland 1931-6-11 673 Butte Shore of lake beyond the head of Butte Creek, Jonesville 1900 Comment
  CAS-BOT-BC193389  Vaccinium shastense subsp. nevadense Clarence R. Quick 1966-6-29 66 -34 Butte Crossing of Lewis Creek with Lewis Creek Ridge Road, n.w. of Sly Creek Reservoir Comment
  CHSC40789  Velezia rigida Lowell Ahart 1985-5-10 4941 Butte Along the edge of Cherokee Road, north of where the public parks, about 5 miles north of Oroville, Table Mountain. 411 Comment
  JEPS121927  Veratrum californicum var. californicum Lowell Ahart 2014-7-16 19691 Butte About 110 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  UC167904  Veratrum californicum var. californicum Mrs. R. M. Austin Jul 1896 100 Butte Colby Comment
  CDA6393  Verbascum blattaria L. Ahart 1998-7-1 8017 Butte South of a large seep, south of the lone oak tree, west of the cow chute on the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  CHSC90975  Verbascum blattaria L. P. Janeway 2005-5-9 8383 Butte Sacramento Valley. Along east side of Hwy 70 across from Clark Road/Hwy 191. 99 Comment
  CHSC111131  Verbascum thapsus Lowell Ahart 2012-6-21 18213 Butte On the south side of Big Chico Creek, about 300 yards east of the dam at Sycamore Pool, Lower Bidwell Park, Chico. 62 Comment
  JEPS114720  Veronica americana Lowell Ahart 2008-5-12 14736 Butte Below the high water line of Lake Oroville, on the east side of Sucker Creek, about 40 yards north of where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile west of the Ponderosa Dam 258 Comment
  JEPS121999  Veronica americana Lowell Ahart 2014-5-13 19466 Butte Along the sides of McCabe Creek, below the high water line of Lake Oroville, about 200 yards southwest of the poor parking area, about 11 miles (air) east of Oroville. Comment
  UC392184  Veronica americana E. B. Copeland 1929-7-28 Butte Jonesville 1500 Comment
  CHSC38718  Veronica anagallis-aquatica Vernon Oswald 1983-6-3 624 Butte Upper Bidwell Park, Chico, in Lindo Channel near the diversion channel. 79 Comment
  JEPS110260  Veronica anagallis-aquatica Lowell Ahart 2006-9-28 13375 Butte On the east side of the North Fork of the Feather River, on the west side of Highway 70, about 50 yards southwest of the Shady Rest Area south of the Arch Rock Tunnel 445 Comment
  CHSC61505  Veronica arvensis Lowell Ahart 1993-6-20 7003 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile northwest of the Lost Creek Reservoir Dam. 1158 Comment
  JEPS108950  Veronica catenata Lowell Ahart 2006-9-11 13295 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
  RSA726853  Veronica catenata L. Ahart 2007-7-8 14272 Butte On the north side of North Honcut Creek, Peter Ahart Ranch, aout 3/4 miles north and 2.5 miles east of Honcut, about 12 miles (air) southeast of Oroville. 46 Comment
  CDA6426  Veronica hederifolia L. Ahart 2001-4-21 8731 Butte On the north side of Palm Avenue, about 30 yards east of the cement bridge, about 1/4 mile east of Larkin Road, about 4 1/2 miles (air) northeast of Gridley. Comment
  CHSC50691  Veronica peregrina subsp. xalapensis Lowell Ahart 1990-6-16 6520 Butte Growing along McCabe Creek, below the high water line of Lake Oroville, about 1/2 mile southwest of the Enterprise Bridge across Lake Oroville. 243 Comment
  SEINET10841166  Vicia angustifolia Lowell Ahart 1984-4-3 Ahart 4536 Butte T17N R4E sec 1. Along North Honcut Creek, ca. 1 mile N and 2.7 miles E of Honcut; on Peter Ahart Ranch. Foothill Woodland; 50 m. 50 Comment
  CHSC31831  Vicia sativa L. Ahart 1976-5-2 1084 Butte On grassy bank of North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC110106  Vicia sativa subsp. nigra L. P. Janeway 2012-5-29 10828 Butte Northern High Sierra Nevada. Plumas National Forest; along Ponderosa Way 4.3 road km north of Lower Forbestown Road; 1.4 air km south of the Ponderosa Reservoir dam. 485 Comment
  SEINET10973176  Vicia villosa Mary Susan Taylor 1974-3-26 Taylor 97 Butte Ca. 1 mi E of Old City Dump, on Humboldt Rd, ca. 3 mi E of Chico; soil wet, rocky clay. Comment
  CDA31959  Vicia villosa subsp. varia L. Ahart 2009-5-8 15664 Butte On the south side of the gravel road, about 10 yards east of Cedar Grove Parking Area in Lower Bidwell Park, Chico. Comment
  CHSC103989  Vicia villosa subsp. varia Lowell Ahart 2010-5-14 16635 Butte On the west side of Highway 32, just north of the entrace to the Disc Golf Area, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 376 Comment
  CHSC11868  Viola glabella E. B. Copeland 1931-5-9 660 Butte Jonesville. 1500 Comment
  CHSC56787  Viola glabella R. A. Schlising 1982-5-19 4247 Butte E part of county, E of village of Feather Falls on road to Fall River Campground, w of Lumpkin Ridge. 1158 Comment
  POM219515  Viola glabella E. B. Copeland 1931-5-9 600 Butte Jonesville. 1500 Comment
  RSA4490  Viola glabella E. B. Copeland 1931-5-9 660 Butte Jonesville. 1500 Comment
  SEINET10480206  Viola lobata Mary Susan Taylor 1978-9-9 Taylor 1919 Butte Along the Skyway in the village of Inskip. 1468 Comment
  SEINET11985467  Viola lobata J. P. Kroessig 1977-1 41 Butte 13 km NE of Paradise 1100 Comment
  CHSC3293  Viola odorata M. L. Hillier 1966-2-16 Butte 300 yards n. of C.S.C. gym. Chico. Comment
  SEINET10871595  Viola purpurea Mary Susan Taylor 1981-3-31 Taylor 3458 Butte T22N R4E ne sec 12. Pulga SW quad. N side of spur rd, ca. 1/10 mi w of its jct with Ponderosa Way (Rim Rd), ca. 5 mi ne of its jct with Hwy 70 at Jarbo Gap, 18 mi n of Oroville; 2600 ft. 792 Comment
  RSA31754  Viola purpurea subsp. purpurea A. A. Heller 1918-5-5 13014 Butte Magalia. Comment
  CHSC2031  Viola purpurea subsp. quercetorum R. Carter 1965-3-13 156 Butte Found on North Table Mt. ca. 10 yds. SE of point where Old Cherokee Rd. comes over S rim of table. 304 Comment
  CHSC12402  Vitis californica Lowell Ahart 1973-5-24 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC34236  Vitis californica M. S. Taylor 1981-5-8 2612 Butte Ca. 3 mi n of Forest Ranch, ca. 1 mi e of Hwy 32. 853 Comment
  CHSC4093  Vitis californica Judy Potter 1967-5-24 308 Butte Chico. Along fence within 50 feet of Chico Creek. Woodland Ave. at 4th St entrance to Bidwell Park. Comment
  CHSC29273  Vulpia bromoides R. A. Schlising 1979-4-21 3373 Butte Richvale vernal pools, 1/4 mi s of junction Hwy 162 (e to Oroville) and Hwy 99, along the latter and across from Thermalito Afterbay. Comment
  CHSC31741  Vulpia bromoides L. Ahart 1968-6-10 20 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31949  Vulpia microstachys var. confusa J. D. Jokerst 1979-5-2 1214 Butte Top of North Table Mt., ca. 200 meters S of Cherokee RD. 396 Comment
  CHSC27793  Vulpia microstachys var. pauciflora K. Bridwell 1978-4-4 57 Butte Along Cherokee Rd, 6 mi s of Hwy 70, ca. 9 mi nne of Oroville. 335 Comment
  CHSC96908  Vulpia microstachys var. pauciflora Lowell Ahart 2007-6-12 14072 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
  POM146467  Vulpia microstachys var. pauciflora A. A. Heller 1918-5-5 13011 Butte Near Magalia. Comment
  CAS-BOT-BC184697  Vulpia myuros subsp. megalura Lowell Ahart 1980-4-19 2082 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC178581  Vulpia myuros var. myuros Lowell Ahart 1979-6-2 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CHSC47127  Wolffiella oblonga Vernon H. Oswald 1989-10-18 4026 Butte West end of West Liberty Rd along the n boundary of Gray Lodge Wildlife Area. In a pond. 19 Comment
  CAS-BOT-BC77796  Woodwardia fimbriata John Thomas Howell 1973-7-9 49697 Butte near Bear Ranch Creek, Feather River Highway 457 Comment
  CAS-BOT-BC383457  Wyethia mollis E. B. Copeland 1931-7-14 700 Butte Jonesville 1600 Comment
  JEPS119937  Xanthium strumarium Lowell Ahart 2012-9-28 18467 Butte Gravel bar in the middle of Big Chico Creek, about 30 yards east of the Freeway, Lower Bidwell Park, Chico. Comment
  POM82820  Yabea microcarpa C. C. Bruce 1897-1 s.n. Butte Chico Comment
  CHSC62461  Zeltnera venusta B. Castro 1987-5-18 102 Butte Ca 9 mi E of Chico via Hwy 32 and ca 2 mi E on Altatina Drive. On SW-facing knob at end of S-trending ridge. 451 Comment



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