Search Results — 2000 specimen records retrieved (1621 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)

Results for search: County=BUTTE; Source=All;   

Mapping Options:

BerkeleyMapper with county and bioregion layers
BerkeleyMapper without layers.
KML export
(Note: only records with coordinates are mappable)

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.
Turn on yellow flags to show possible range discrepancies. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CHSC45838  Abies concolor Lowell Ahart 1984-4-26 4812 Butte South fork of Feather River, near the new bridge, about 1 mile north of Golden Trout Crossing, about 10 miles east of Feather Falls. 975 Comment
Read comments
Apr 30 2014
  CHSC43580  Acer glabrum var. torreyi Vernon Oswald 1983-7-6 826 Butte Beside Humboldt Rd. 3.4 mi NE of Butte Meadows. Growing near Butte Creek in yellow pine forest. 1432 Comment
  CAS-BOT-BC331607  Acer macrophyllum A. A. Heller 1914-7-14 11575 Butte Canon of Big Chico Creek Comment
  CAS-BOT-BC331609  Acer macrophyllum Mrs. J. H. Morrison 1932-4-9 s.n. Butte Durham Comment
  CHSC30934  Acer macrophyllum Leslie Steidl 1980-4-1 10 Butte .8 mi nnw of Lumpkin Rd on Craig Access Rd, on w side of road, 18 mi e of Oroville. 353 Comment
  SEINET7893982  Acer macrophyllum R. T. Short 1961-4-11 s.n. Butte On US 40 alternate, 15 miles E of Oroville. (Hwy 70) 549 Comment
  CHSC3860  Acer palmatum Gary Dutton 1966-4-13 208 Butte CSC; South side of admin. bld. In front lawn. Chico Comment
  CHSC111347  Achyrachaena mollis Lowell Ahart 2012-5-2 17951 Butte On damp dark clay soil, 20 yards south of the fence, west of the Government Pole Line, Upper Bidwell Park, about 1 mile east of Chico. 85 Comment
  CHSC88869  Achyrachaena mollis Christine Hantelman 2000-4-20 77 Butte On south side of fence about 1.25 miles east on Wookey Road. 112 Comment
  CHSC6592  Acmispon americanus var. americanus G. Estrem 1968-5-2 12 Butte Ca. 5 mi se of Chico on Skyway, ca. 100 yds. s of road in open field. Comment
  CHSC82510  Acmispon americanus var. americanus Lowell Ahart; John Dittes, Josephine Guardino 2002-6-21 9750 Butte On the south side of a poor dirt road, Watson Ridge, about 2 miles (air) northeast of Bald Rock Dome, about 5 miles (air) north of Feather Falls (the town). Comment
  CHSC84859  Acmispon argophyllus var. fremontii L. P. Janeway; John Hunt 2003-6-6 7815 Butte Northern Sierra Nevada Foothills. South-facing slope above Lake Oroville 650 m north-northeast of the north end of Bidwell Bar Bridge. 296 Comment
  JEPS98263  Acmispon argophyllus var. fremontii Lowell Ahart 2000-6-27 8516 Butte Big Bald Rock, about 3 miles (air) east of Madrone Lake, about 12 miles (air) northeast of Oroville. 993 Comment
  CHSC78146  Acmispon brachycarpus Lowell Ahart 2000-5-31 8424 Butte A serpentine ridge, about 200 yards east of where Kunkle Creek enters Lake Oroville, east of the Kunkle Power House, about 3 miles southeast of Paradise. 335 Comment
  CHSC40281  Acmispon glaber Lowell Ahart 1985-5-31 5037 Butte About 25 feet below the high water line of Lake Oroville, about 1/4 mile west of the Enterprise Launch Area, about 1 mile west of the Ensterprise Bridge, north-east of Oroville. 274 Comment
  CHSC50040  Acmispon strigosus Lowell Ahart 1990-4-15 6455 Butte Below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/8 mile northwest of the Enterprise Bridge across Lake Oroville. 289 Comment
  CAS-BOT-BC412865  Aconogonon davisiae E. B. Copeland 1929-7-17 s.n. Butte Above Jonesville 2000 Comment
  CHSC53693  Actaea rubra Kirsten Tarp 1983-7-28 307 Butte Chico Meadows, ca. 1.0 mi n of Butte Meadows, near county line. At stream side. 1295 Comment
  CHSC53696  Actaea rubra Kirsten Tarp 1983-7-31 321 Butte Philbrook Reservoir, sw of store. 1706 Comment
  CHSC48839  Adenostoma fasciculatum Vernon Oswald 1986-5-6 1994 Butte Cohasset Ridge along the dirt road paralleling Cohasset Hwy on the south. 457 Comment
  CHSC90242  Adenostoma fasciculatum T. H. Watroba 1989-4-18 20 Butte Ca. 50 yds e of Cohasset Rd., Cohasset Ridge, 8 mi nne of Chico. 548 Comment
  UC1127718  Adenostoma fasciculatum A. E. Wieslander 1936-5-30 626 Butte Keefer Ridge Chico Quad., Keefer Ridge Comment
  SEINET10529850  Adiantum capillus-veneris Mary Susan Taylor 1980-2-17 Taylor 2364 Butte T20N R6E ne sec 5. Along a creek at an old mine site, in Yellow Pine Forest, ca. 0.5 mi SW of Lower Forbestown Road, ca. 3 mi W of Forbestown. 396 Comment
  CHSC23644  Adiantum jordanii M. S. Taylor 1976-4-4 1059 Butte On s side of Ponderosa Way, ca. 4 mi w of junc of Ponderosa Way and Hwy 32, ca. 23 mi ne of Chico. 487 Comment
  CHSC44957  Adiantum jordanii Lance E. Neuman 1987-4-10 19 Butte Ca. 200 yd ne of Horseshoe Lake. 106 Comment
  CAS-BOT-BC110727  Aegilops triuncialis Lowell Ahart 1980-5-10 2227 Butte Peter Ahart Ranch, Honcut. 50 Comment
  JEPS120088  Aegilops triuncialis Lowell Ahart 2012-6-5 18155 Butte On the south side of Beastson Hollow, about 3/4 mile northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 6 miles (air) north of Oroville. Comment
  CHSC107396  Aesculus californica Blake McSorley 2010-4-13 Butte Bidwell Park at Green Gate. 469 Comment
  CHSC65532  Agoseris retrorsa L. P. Janeway 1995-6-1 4767 Butte South-trending ridgetop at the far western end of Jackson Ranch Ridge, about 0.9 mi east-northeast of the falls of Feather Falls. 1054 Comment
  CHSC49500  Agrostis capillaris Vernon Oswald 1984-7-31 1640 Butte Humboldt R. at the Willow Creek-Colby Creek bridge. 1487 Comment
  CDA13312  Agrostis exarata G. F. Hrusa, T. D. Wilfred 1996-7-9 13158 Butte Sierra Nevada; Shaded banks on E side of bridge over Marble Creek along USFS N60. Occasional, perennial. Comment
  CHSC102822  Agrostis exarata Lowell Ahart 2009-6-3 15829 Butte About 55 yards southeast of the gate, about 45 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 269 Comment
  CHSC70823  Agrostis exarata var. monolepis B. Castro; H. Durio, L. Gehrung 1995-7-24 589 Butte Ca 1.5 air mi S of Hungry Hunt Peak, and 1.5 mi E of Hwy 70, ca 0.2 mi S of 'A' Spur off USFS Rd 22N84. 914 Comment
  CAS-BOT-BC139435  Agrostis hyemalis H. S. Yates 1936-8-13 6109 Butte 2.5 miles south southeast of Butte Meadows. 1493 Comment
  SEINET10942291  Agrostis hyemalis A. Arthur Heller 1914-8-6 Heller 11647 Butte Found sparingly in wet ground in Chico Meadwos, associated with carex, juncus, Micranthes sierrae, Mimulus, Epilobium and other meadow plants. 1219 Comment
  CAS-BOT-BC138852  Agrostis microphylla Lowell Ahart 1988-5-28 6007 Butte Peter Ahart Ranch, about 1.5 mile north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC50566  Agrostis pallens Vernon Oswald 1990-7-10 4359 Butte Head of Feather Falls, ca. 4 mi north of the town of Feather Falls. 579 Comment
  JEPS98495  Agrostis pallens Lowell Ahart 2000-6-27 8517 Butte Big Bald Rock, about 3 miles (air) east of Madrone Lake, about 12 miles (air) northeast of Oroville. 993 Comment
  RSA129697  Agrostis scabra H. S. Yates 1936-8-13 6109 Butte Paynes Creek; 2.5 miles S.S.E. of Butte Meadow 1494 Comment
  UC573807  Agrostis scabra H. S. Yates 1936-8-13 6099 Butte Butte Meadow Paynes Creek Quad. 1341 Comment
  CHSC71407  Agrostis stolonifera Lowell Ahart 1998-7-18 8041 Butte Southwest of the lone oak tree, west of the cow chute on the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CHSC2117  Aira caryophyllea H. Silberman; D. Isaac 1949-5-4 Butte Humboldt road, 2 mi. E of Chico. 152 Comment
  HSC32575  Aira caryophyllea David Johnson 1974-4-20 23 Butte Along Pentz Rd., S of Clark Rd. intersection. Comment
  JEPS115952  Aira caryophyllea Lowell Ahart 2009-4-26 15616 Butte About 10 miles northeast of Chico, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 150 yards southwest of Ten Mile House Road, on south edge of a small open meadow 286 Comment
  SEINET10497817  Ajuga reptans Mary Susan Taylor 1975-4-6 Taylor 434 Butte Chico. 52 Comment
  CHSC97372  Alisma triviale Paul Maslin 2006-6-15 39 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). Man made pond near reserve headquarters. UTM: 10611097E 4411325N. 487 Comment
  CAS-BOT-BC131910  Allium John Thomas Howell 1955-6-14 30437 A Butte At Magalia 731 Comment
  CAS-BOT-BC131911  Allium John Thomas Howell 1955-6-15 30514 Butte West Branch of North Fork of Feather River 182 Comment
  UCD111669  Allium Christopher Mallek 2007-5-4 s.n. Butte Magalia. 756 Comment
  CHSC27792  Allium amplectens Rod Bunday 1978-4-25 16 Butte Ca. 200 ft w of Cohasset Rd ca. 12 mi ne of East Ave. between Chico and Cohasset. 304 Comment
  CHSC36909  Allium amplectens S. Azevedo; R. A. Schlising 1980-6-13 3700 Butte NE of Forest Ranch; 2.3 mi e and se of Hwy 32 along Garland Road, near jct with Doe Mill Road and Ponderosa Way. 902 Comment
  POM169472  Allium amplectens E. B. Copeland 1903-5-2 2871 Butte Chico Comment
  CDA39428  Allium amplectens L. L. Heinricks 1974-5-2 s.n. Butte On both sides of Wilbur Road. 0 Comment
  SEINET10839457  Allium amplectens Mary Susan Taylor 1975-6-30 Taylor 822 Butte Ca. 1/4 mi W of Cohasset Hwy, ca. 400 yds N of Greenwood Store, Cohasset; Yellow Pine Forest. 853 Comment
  UCSB63599  Allium amplectens Hess, Vineca 1986-4-12 Butte Ridge n of Horseshoe Lake, vic. Chico Municipal Golf Course 91 Comment
  CAS-BOT-BC465436  Allium campanulatum A. A. Heller 1914-6-22 11480 Butte Little Summit near Butte Meadows 1463 Comment
  JEPS122449  Allium hyalinum L. P. Janeway 2015-3-29 11643 Butte Sacramento Valley. North side of Thermalito Forebay, on the west side of Nelson Ave. Quad: Oroville 7.5'. Comment
  CDA13909  Allium jepsonii G. F. Hrusa, T. D. Wilfred 1997-7-3 13990 Butte Sierra Nevada; Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. Comment
  CHSC4371  Allium membranaceum R. L. Smith 1966-5-28 Butte 3 mi. w of DeSabla. Comment
  CAS-BOT-BC472966  Allium membranaceum Clarence R. Quick 1952-7-1 52 -119 Butte Mill Creek Road between Feather River Highway and Coyote Gap; Sierra Nevada Comment
  CHSC49477  Allium obtusum var. obtusum Vernon Oswald 1985-4-29 1732 Butte Big Bald Rock. 990 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
  CHSC44410  Allophyllum divaricatum Lowell Ahart 1988-6-29 6101 Butte On a bank along Bean Creek Road, east of a small branch of Bean Creek, about 3/4 mile south-east of Little Bald Rock. 944 Comment
  CHSC35103  Allophyllum integrifolium R. Preston; R. Banchero, R. Schlising 1981-7-14 4146 Butte N part of county, ca 0.3 mi SW of Humbug Summit. 1981 Comment
  UC879964  Allophyllum integrifolium A. A. Heller 1917-7-26 12844 Butte Butte Meadows 1402 Comment
  UC203870  Alnus incana subsp. tenuifolia A. A. Heller 1914-7-24 11622 Butte Butte Creek Sierra Nevada, Butte Meadows (banks) 1219 Comment
  CHSC40340  Alnus rhombifolia Lowell Ahart 1985-1-27 4837 Butte Around Kunkle Res., about 2 miles south of Paradise. 550 Comment
  UCD110029  Alnus rhombifolia John Steiner 1977-4-23 55 Butte S bank of Chico Creek at e end of Chico Canyon Road. 65 Comment
  CHSC35649  Alopecurus carolinianus R. E. Preston 1982-4-7 233 Butte On banks of irrigation ditch which crosses Biggs-Princeton Hwy ca. 2.4 mi w of Biggs. 24 Comment
  CHSC40899  Amaranthus albus Lowell Ahart 1985-11-7 5228 Butte Below the high water line of Lake Oroville, on the north side of the South Fork of the Feather River, about 200 yards north-west of the Ponderosa Dam. 286 Comment
  CHSC97133  Amaranthus albus Lowell Ahart 2007-7-2 14240 Butte East road edge of Oroville Quincy Highway, about one mile south of Big Ridge Road, about 9 miles (air) northeast of Oroville. 362 Comment
  UCSB64011  Amaranthus albus Ahart, Lowell 1982-7-10 Butte About 1/4 miles south-east of the Gray Lodge Headquarters, about 12 miles south-west of Gridley, Butte County, California 30 Comment
  CHSC37532  Amaranthus blitoides M. S. Taylor; L. Ahart 1982-10-11 5159 Butte Graylodge Wildlife Refuge, on n side of loop road w of HQ, 12 mi sw of Gridley. 18 Comment
  UC1563277  Amaranthus californicus Lowell Ahart 1990-9-30 6602 Butte below Canyon Creek Bridge across Lake Oroville (along the edges of Canyon Creek); Lake Oroville, Canyon Creek 228 Comment
  SEINET10478792  Amaranthus retroflexus Mary Susan Taylor 1975-10-3 Taylor 930 Butte At bridge over Little Chico Creek on River Road, ca. 10 mi W of Chico; Ripar ian Woodland disturbed area. 37 Comment
  CHSC75961  Amaranthus rudis Lowell Ahart 1999-8-13 8175 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
  CHSC105790  Ambrosia psilostachya Lowell Ahart 2010-9-13 17152 Butte Open dry areas, Oroville Wildlife Area, about 1/2 mile west of Pacific Heights Road, about 3 1/2 miles (air) northwest of Palermo. 31 Comment
  CHSC21175  Ambrosia psilostachya M. S. Taylor 1975-10-29 977 Butte Ca. 10 ft S of Humbug Rd, ca. 4 mi E of junc of the Skyway and Humbug Rd. Comment
  CAS-BOT-BC142952  Amelanchier utahensis A. A. Heller 1915-6-11 11963 Butte Chico Meadows in the Sierra Nevada 1219 Comment
  CHSC46818  Amsinckia eastwoodiae R. A. Schlising 1985-4-8 4461 Butte West of Table Mt., along Table Mt. Blvd., NW of crossing of Campbell Creek. Comment
  CHSC61713  Amsinckia eastwoodiae David E. Young 1983-3-20 5 Butte 23 m w of Humboldt Rd. and 4 km e of Chico, .8 km n of Little Chico Creek. 99 Comment
  RSA33142  Amsinckia intermedia A. A. Heller 1941-4-19 16067 Butte Edge of a field on the road to Bidwell Park, north side of sandy gulch or Lindo Channel. Comment
  CHSC60661  Amsinckia lycopsoides Vernon H. Oswald 1993-4-15 5269 Butte Upper Bidwell Park, Chico, along Upper Park Rd. near Devil's Kitchen. 207 Comment
  UC172861  Amsinckia lycopsoides A. A. Heller 1913-3-9 10683 Butte hills 2 mi n Oroville Comment
  CDA34144  Anagallis arvensis L. Ahart 2009-4-22 15593 Butte West side of Guardian s Trail, about 100 yards north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road. Approximately, 10 miles northeast of Chico. Comment
  CHSC27243  Anagallis arvensis P. Moyer 1972-4-16 174 Butte S bank Chico Ck., e of Warner St. bridge. CSUC campus. 60 Comment
  CHSC81542  Anagallis arvensis Sabrina Wright 2000-4-27 Butte Chico. Verbena Ave., in flower bed. 60 Comment
  POM76366  Anagallis arvensis C. C. Bruce 1897-04 1895 Butte Butte Creek. Comment
  CHSC43259  Andropogon virginicus var. virginicus Lowell Ahart 1987-10-22 5926 Butte About 1/2 mile west of the north entrance to the Oroville Wildlife Refuge, west of Pacific Heights Road, about 5 miles south-west of Oroville. 38 Comment
  CHSC42563  Angelica breweri Vernon Oswald 1983-8-17 991 Butte Trail between Humboldt Summit and Humboldt Peak, n-e of Jonesville. 2023 Comment
  POM197048  Angelica breweri H. F. Copeland 1928-8-18 1065 Butte Neighborhood of Jonesville 1524 Comment
  SEINET12121868  Angelica breweri Unknown 1985-1 5151 Butte along the Forbestown Ditch about 2.5 mi NE of Forbestown 869 Comment
  CHSC42566  Angelica californica Vernon Oswald 1985-7-15 1902 Butte Ponderosa Way (Rim Rd.) 3.1 mi n of Hwy 70 at Jarbo Gap. 853 Comment
  CHSC82469  Anisocarpus madioides Lowell Ahart; John Dittes, Josephine Guardino 2002-6-21 9746 Butte On the north side of a poor dirt road, Watson Ridge, about 2 miles (air) northeast of Bald Rock Dome, about 5 miles (air) north of Feather Falls (the town). Comment
  JEPS103530  Anisocarpus madioides Lowell Ahart 2002-6-21 9746 Butte On the N side 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). 1158 Comment
  UC532229  Antennaria rosea Herbert F. Copeland 1934-7-9 Butte Jonesville (region of), near the source of Butte Creek Butte Creek 1828 Comment
  CAS-BOT-BC84690  Anthemis cotula Helen M. Edwards 1917-6-1 s.n. Butte De Sabla Comment
  CHSC21146  Anthemis cotula M. S. Taylor 1975-10-3 939 Butte On sandbar in Sacramento River, ca. 5 mi W of Chico. 36 Comment
  CHSC31891  Anthriscus caucalis L. Ahart 1977-5-4 1350 Butte On moist soil in shade of old shearing barn. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC38683  Antirrhinum cornutum Vernon Oswald 1983-6-3 632 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
  RSA0009189  Antirrhinum cornutum C. C. Bruce 1897-06 1833 Butte [No location information provided.] Comment
  CHSC48967  Antirrhinum leptaleum Vernon Oswald 1985-6-26 1868 Butte West side of Forbestown Rd. ca. 200 ft s of Black Bart Rd. 743 Comment
  CHSC28500  Antirrhinum vexillo-calyculatum subsp. intermedium M. S. Taylor 1979-7-22 2169 Butte Pulga bridge, on n side of trail leading from ne side of Pulga bridge over Hwy 70, ca. 27 mi n of Oroville. 487 Comment
  CHSC50563  Antirrhinum vexillo-calyculatum subsp. intermedium Vernon Oswald 1990-7-7 4355 Butte Near the south end of Butte Creek Trail, ca. 2.25 mi east of Forest Ranch, ca. 1 mi northwest of De Sabla. 548 Comment
  CHSC12926  Aphyllon epigalium subsp. epigalium K. D. Cox 1974-6-16 190 Butte Vilas Rd., 5.4 mi. S of Cohasset rd. N. of Chico. Comment
  CHSC63971  Aphyllon epigalium subsp. epigalium B. Castro; G. Kuenster, L. Gehrung 1994-6-1 513 Butte Ca 1.5 air mi ENE of Feather Falls (the falls), ca 1 mi W of Jackson Ranch, on broad S-facing slopes S of jcn USFS Rd 21N25Y and another smaller dirt road. 1054 Comment
  CHSC12928  Aphyllon purpureum K. D. Cox 1974-4-15 187 Butte Horse Trough, about 2 mi. N of Chico Airport, on Cohasset Rd. On roadside bank. Comment
  CHSC88091  Apocynum cannabinum R. D. Fischer 2004-4-17 176 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located in riparian zone of Big Chico Creek w. of 10 Mile House Road where rd. and creek are closest. At creek edge. 213 Comment
  RSA725004  Apocynum cannabinum L. Ahart 2006-9-11 13272 Butte South edge of the North Fork of the Feather River, north side of highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 air miles northeast of Oroville. 432 Comment
  CHSC45020  Aquilegia formosa var. truncata Kirsten Tarp 1982-7-21 220 Butte N part of county, near Philbrook Resevoir. 1706 Comment
  CHSC52193  Aquilegia formosa var. truncata Kirsten Tarp 1983-7-22 297 Butte E part of county, near Milsap Bar. 548 Comment
  CHSC39284  Aralia californica Lowell Ahart 1983-7-24 4214 Butte Small wash at the Forbestown Res., about 5 miles north-east of Forbestown. 450 Comment
  SEINET10972994  Aralia californica Lowell Ahart 1985-7-9 Ahart 5106 Butte About 1 mile south of the Ponderosa Dam Across the South Fork of the Feather River, about 3 miles north-west of Forbestown. Comment
  SBBG17292  Arbutus menziesii M. Vincent 1961-3-30 Butte Spense Rd near cross street Pearson Comment
  CHSC584  Arbutus unedo 1935-4-28 Butte Bidwell grounds, Chico. Comment
  CAS-BOT-BC407686  Arceuthobium americanum Vernon Oswald; Lowell Ahart 1987-7-1 3077 Butte Cluster of 3 snow lakes ca. 3 mi. S of Humbug Summit, 0.5 miles W of the Butte-Plumas county line, ca. 5.5 mi. SE of Jonesville 1935 Comment
  CHSC44407  Arceuthobium campylopodum Lowell Ahart 1988-6-29 6106 Butte At the intersection of Bean Creek Ranch Road and the road to the Andy Smith Ranch, about 1 1/2 miles south-east of Little Bald Rock. 914 Comment
  NY9758  Arctostaphylos A. A. Heller 1928-2-27 14478 Butte About two mi below Forest Ranch in red clay, lower limit of the Transition life zone. Comment
  RSA632989  Arctostaphylos manzanita Jon E. Keeley 1996-6-20 27464 Butte Approximately 1/2 km west of Cohasset. 570 Comment
  UCD51932  Arctostaphylos manzanita John Thomas Howell 1975-6-15 51113 Butte Skyway and Montana Drive, Paradise, Butte County.Transition Zone. 609 Comment
  CAS-BOT-BC38860  Arctostaphylos manzanita subsp. manzanita A. A. Heller 1940-2-4 15488 Butte Neal road west of Paradise just below the Spring House. Comment
  SEINET11989068  Arctostaphylos manzanita subsp. roofii R. Gankin, Powell, R. 1966-1 869 Butte Cohasset Ridge NE of Chico 549 Comment
  CAS-BOT-BC24296  Arctostaphylos mewukka A. A. Heller 1928-2-27 14477 Butte About 2 mi. w. of Forest Ranch. Comment
  UC725989  Arctostaphylos mewukka A. A. Heller 1942-3-1 16383 Butte three mi below Paradise (on Pentz-Magalia road) Comment
  CAS-BOT-BC38611  Arctostaphylos mewukka subsp. truei A. A. Heller 1940-2-6 15491 Butte Neal Road at Paradise in the game refuge, above Bowle's Mansion. Comment
  UC481530  Arctostaphylos nevadensis H. F. Copeland 1931-6-11 Butte above Kirby Meadows; Jonesville Comment
  UC481602  Arctostaphylos nevadensis H. F. Copeland 1920-7-8 486 Butte on summit Jonesville Comment
  CAS-BOT-BC46716  Arctostaphylos patula A. A. Heller 1915-6-26 12035 Butte Summit of the Sierra Nevada above Jonesville. 2133 Comment
  RSA121220  Arctostaphylos patula C. G. Albertus 1933-7-26 53 Butte 1/4 mi. S. of Barnum Mill. Comment
  SEINET11989216  Arctostaphylos viscida J. T. Howell 1975-1 51085 Butte about 2 mi from Paradise on Skyway to Chico 396 Comment
  CAS-BOT-BC47373  Arctostaphylos viscida subsp. viscida John Thomas Howell 1975-6-15 51086 Butte about 2 miles from Paradise on Skyway to Chico 396 Comment
  CAS-BOT-BC48290  Arctostaphylos viscida subsp. viscida John Thomas Howell 1955-6-15 30489 Butte 6 miles from Paradise on road to Pentz 426 Comment
  CAS-BOT-BC48296  Arctostaphylos viscida subsp. viscida John Thomas Howell 1975-6-15 51083 Butte About 2 miles from Paradise on Skyway to Chico. 396 Comment
  CHSC27932  Arctostaphylos viscida subsp. viscida M. S. Taylor 1976-4-24 1074 Butte On Big Bald Rock, ca. 1/4 mi W of Bald Rock Rd, ca. 3 mi E of Lake Madrone, ca. 13 mi NE of Oroville. 997 Comment
  JEPS119508  Arctostaphylos viscida subsp. viscida Lowell Ahart 2012-3-2 17760 Butte About 200 yards north of Ten Mile House Road, about 200 yards west of Highway 32 about 9 miles northeast Chico. Comment
  CAS-BOT-BC137550  Aristida oligantha M. S. Taylor; M. Hayes 1977-8-16 1434 Butte On a side of Pentz Road near culvert in natural drainage, ca. 1.2 east of jct of Pentz Road and Highway 99, ca. 15 mi s of Chico. 60 Comment
  CAS-BOT-BC137551  Aristida oligantha Lowell Ahart 1976-12-29 s.n. Butte Honcut. Peter Ahart Ranch. 45 Comment
  CAS-BOT-BC137557  Aristida oligantha John Thomas Howell 1961-9-22 36762 Butte Sierra Nevada. North Fork of Feather River, 10 miles from Oroville. Comment
  CHSC28477  Aristida oligantha R. A. Schlising 1979-8-18 3470 Butte Richvale vernal pools across from the Thermalito Afterbay w of Oroville; 1/4 mi s jct Hwys 162 to Oroville and 99. Comment
  CHSC78950  Aristida oligantha Lowell Ahart 2000-9-17 8692 Butte 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. 1066 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
  CHSC41979  Aristida ternipes var. hamulosa Lowell Ahart 1986-11-14 5466 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
  CAS-BOT-BC295867  Arnica dealbata F. N. Bassett 1923-7-23 s.n. Butte Jonesville via Butte Meadows Comment
  NY43502  Artemisia douglasiana S. Bianco 1995-8-26 1021 Butte Concow area, E of Concow Rd, along Kakini Rd 762 Comment
  SFV11162  Asarum hartwegii M. L. Vincent 1963-6-7 384 A Butte Paradise Dam, 4 miles north of Paradise. 760 Comment
  CAS-BOT-BC400636  Asarum hartwegii A. A. Heller 1919-5-18 13174 Butte Mosquito Creek between Appleton and Coutelence Comment
  SEINET10475948  Asarum hartwegii Mary Susan Taylor 1980-9-12 Taylor 3334 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
  CHSC47042  Asarum lemmonii R. A. Schlising; F. J. Fuller 1986-7-18 4489 Butte NE of village of Feather Falls, along road to Fall River Campground. 1066 Comment
  JEPS115624  Asclepias cordifolia Lowell Ahart 2009-5-15 15672 Butte About 80 yards west of the dirt road which isTen Mile House Road, Upper Bidwell Park, about 2/3 mile (air) west of Highway 32, about 10 miles northeast of Chico 271 Comment
  CHSC44365  Asclepias speciosa Lowell Ahart 1988-6-29 6112 Butte Along Bean Creek Road, near camping area along Bean Creek, about 3/4 mile south-west of Johnson Ranch, about 2 1/4 miles south of Little Bald Rock. 548 Comment
  SEINET10913624  Asclepias speciosa Lowell Ahart 1988-6-29 Ahart 6112 Butte Along Bean Creek Road, ca 3/4 mi SW of Johnson Ranch, ca 2 1/4 mi S of Little Bald Rock 549 Comment
  CHSC95052  Asparagus officinalis subsp. officinalis L. P. Janeway 2006-10-4 8903 Butte Sacramento Valley. Oroville Wildlife Area; 150 m east of Feather River, on west bank of narrow slough; 1.7 km south-southeast of the Thermalito Afterbay outlet. 32 Comment
  CHSC28517  Aspidotis densa M. S. Taylor; J. D. Jokerst 1979-10-13 2273 Butte On Jordan Hill Rd, (Ponderosa Way on some maps) ca. 11.1 mi n of its jct with Concow Rd, ca. 1.9 mi n of Sawmill Peak, ca. 2 mi e of Magalia. 853 Comment
  SEINET10475114  Aster eatonii Mary Susan Taylor 1979-9-28 Taylor 2200 Butte Butte County line at Hwy 70, between boundry and Arch Rock tunnel; granitic soils and dome outcrop. 488 Comment
  RSA724823  Aster occidentalis var. occidentalis L. Ahart 2006-9-9 13245 Butte West side of a large meadow with bogs, about 75 yards south of the cabin, about 3/4 air mile northwest of Jonesville, about 5 air miles northeast of Butte Meadows 1561 Comment
  CHSC46550  Aster radulinus Vernon H. Oswald 1989-7-18 3865 Butte West side of the road to Colby Mtn Lookout near the Butte-Tehama county line, ca. 0.5 mi (air) NW of Jonesville. 1554 Comment
  CHSC65620  Aster radulinus L. P. Janeway 1995-9-10 4922 Butte Watson Ridge about 1 mi east of its western end. Overlooking Fall River. 1097 Comment
  CAS-BOT-BC178462  Astragalus gambelianus Lowell Ahart 1985-3-24 4851 Butte Serpentine Point, west of Yankee Hill 550 Comment
  CAS-BOT-BC178470  Astragalus gambelianus John Thomas Howell 1967-6-22 42625 Butte Magalia, Sierra Nevada 701 Comment
  RSA415678  Astragalus purshii var. tinctus M. M. Boney 1897-1 1724 Butte [No location data on label] Comment
  CHSC42892  Asyneuma prenanthoides L. P. Janeway 1987-6-27 2367 Butte 2.0 mi W of Bald Mtn along road to Stirling City. 1493 Comment
  CAS-BOT-BC68693  Athyrium filix-femina var. californicum M. S. Taylor 1981-4-16 3545 Butte Along creek near 21N31Y, ca. 2 mi N of Big Bald Rock, ca. 1 mi SE of Brush Creek on Oroville-Quincy Hwy. Brush Creek qd. 1036 Comment
  CAS-BOT-BC66023  Athyrium filix-femina var. cyclosorum E. B. Copeland 1929-7-29 26 Butte Jonesville 1600 Comment
  CHSC34150  Athyrium filix-femina var. cyclosorum L. Ahart 1981-9-15 3153 Butte On sides of Pinkard Creek, ca. 1/2 mi n of Lost Creek Reservoir. 1100 Comment
  CHSC32762  Athysanus pusillus J. D. Jokerst 1981-4-10 1287 Butte Top of North Table Mt, W edge of mountain ca 200 met N of Cherokee Rd where it intersects the W edge of the mt. 335 Comment
  CHSC43812  Athysanus pusillus Lowell Ahart 1978-4-19 1649 Butte Along the trail to Feather Falls, about 3 miles north of the town of Feather Falls. 548 Comment
  JEPS107360  Athysanus pusillus Lowell Ahart, Paul Maslin, John Dittes 2005-3-17 11667 Butte Big Chico Creek Ecological Reserve. Burned area, ca. 50 yd S of fence, on the E side of the poor dirt road, ca. 1/8 mi NW of the Indian Cave, ca. 3/4 mi W of Big Chico Creek, ca. 4 1/2 mi (air) NE of Chico 481 Comment
  POM219647  Athysanus pusillus H. F. Copeland 1928-4-3 431 Butte Canyon of Butte Creek. Comment
  SBBG128281  Athysanus pusillus L. Ahart, J. Dittes 2009-3-20 15498 Butte open area along the Guardian Rock Trail, ca. 150 yards SW of the Ten Mi House Rd Trail, ca. 300 yards W of Hwy 32, W of the intersection of Hwy 32 and Ten Mi House Rd, upper Bidwell Park, ca. 10 mi NE of Chico 407 Comment
  SEINET10479064  Atriplex rosea Mary Susan Taylor 1977-10-10 Taylor 1524 Butte Ca. 1 mi E of junction of Nelson West Road and Chico-Butte Hwy, on N side of Nelson West Road in large creek (drying area), ca. 23 mi S of Chico. 30 Comment
  CAS-BOT-BC176606  Atriplex serenana var. serenana Lowell Ahart 1977-7-24 s.n. Butte Gray Lodge, 10 miles southwest of Gridley 30 Comment
  CHSC31711  Avena fatua L. Ahart 1978-5-1 1699 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC38789  Avena fatua Vernon Oswald 1983-3-14 186 Butte Upper Bidwell Park, Chico, on the north slope near rim rock on the level of the e end of Horseshoe L. 152 Comment
  CHSC47371  Azolla filiculoides Lowell Ahart 1989-11-12 6405 Butte 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
  JEPS116119  Azolla filiculoides Lowell Ahart 2009-10-8 16412 Butte In a deep large ditch, on the east side of the road, about 20 yards east of Parking Lot 13, Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley 19 Comment
  JEPS122266  Azolla filiculoides Lowell Ahart 2014-4-9 19338 Butte West end of Liberty Road, about one mile (air) south of Colusa Highway, about 7 miles (air) southwest of Gridley. Comment
  CAS-BOT-BC66215  Azolla filiculoides Mrs. R. M. Austin 1894-6-1 s.n. Butte Cold Springs, Willow Creek Comment
  UC57396  Baccharis salicifolia subsp. salicifolia H. E. Brown 1896-10-2 120 Butte near Oroville 53 Comment
  CHSC113982  Bacopa rotundifolia Lowell Ahart 2014-10-14 19882 Butte Open area in a rice field, Peter Ahart Ranch, about 2-1/4 miles north and 1/4 mile east of Honcut, about 12 miles south of Oroville. 29 Comment
  CHSC37134  Bacopa rotundifolia L. Ahart 1982-6-27 3652 Butte Peter Ahart Ranch, ca 2 1/4 mi n and 1/4 mi e of Honcut. 50 Comment
  POM180885  Bacopa rotundifolia H. F. Copeland 1923-7-9 843 Butte Nelson. Comment
  CHSC13470  Balsamorhiza deltoidea T. D. Brumley 1974-4-28 23 Butte Ca. 1 mi. from Controlene Rd. and 2 mi. E of junction of Controlene and Skyway. 609 Comment
  CHSC26835  Barbarea orthoceras M. S. Taylor; M. Hayes 1978-6-24 1654 Butte In meadow, on n side of Scotts John Rd, ca. 3 mi e of its jct with Old Humboldt Rd, ca. 5 mi e of Jonesville. 1676 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
  CAS-BOT-BC75549  Berberis dictyota Lowell Ahart 1988-3-27 5942 Butte Along Poe Power House Road, about 0.1 mile north of the bridge across the North Fork of the Feather River. 350 Comment
  SEINET10536480  Berberis dictyota Mary Susan Taylor 1976-4-27 Taylor 1093 Butte Abundant in Yellow Pine Forest, on N or S side of Ponderosa Way, ca. 1-4 mi E of junction of Villas Rd and Cohasset Hwy, ca. 23 mi NE of Chico. 610 Comment
  CHSC46017  Bergia texana Lowell Ahart 1974-9-8 628 Butte Peter Ahart Ranch, about 1-1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  JEPS104405  Bergia texana Lowell Ahart 2003-6-23 10306 Butte In a rice field, Peter Ahart Ranch, ca 300 yd e of the Palermo Honcut Highway, ca 2 1/8 mi n of Honcut, ca 12 mi south of Oroville. Comment
  HSC93350  Bergia texana L. Ahart 1995-7-15 7594 Butte Small wash, Peter Ahart Ranch, 1.5 mi. N and 0.75 mi. E of Honcut, 12 mi. S of Oroville 37 Comment
  CAS-BOT-BC169392  Betula W. R. Dudley 1899-8-1 s.n. Butte Upper Sacramento River Comment
  SEINET10839335  Bidens frondosa Mary Susan Taylor 1979-10-2 Taylor 2208 Butte Sacramento River Chico Landing and park, off River Road near the washout, ca. 5 mi W of Chico; Riparian Woodland. 30 Comment
  NY31003  Blennosperma californicum C. B. Wolf 1937-3-29 8333 Butte Sacramento Valley, 0.5 mile southeast of Butte Creek on Chico-Oroville road 57.9 Comment
  CHSC31615  Blennosperma nanum Lowell Ahart 1975-4-2 739 Butte Peter Ahart Ranch, Honcut. 45 Comment
  UCD73334  Blennosperma nanum Chuck Hughes 2008-3-26 25 Butte North Table Mountain. 396 Comment
  HSC32592  Blennosperma nanum var. nanum Linda M. Barker 1974-4-20 159 Butte Table Mtn., Central Valley 305 Comment
  CHSC41902  Boechera breweri subsp. shastaensis Lowell Ahart 1961-2-26 2 Butte At the Salmon Hole, Upper Bidwell Park, Chico. 91 Comment
  CHSC35759  Boechera rectissima R. E. Preston 1982-6-15 301 Butte At e margin of meadow; Cherry Hill, ca. 2 mi w of Jonesville. 1414 Comment
  CHSC66455  Bolboschoenus glaucus Vernon H. Oswald 1996-6-10 7757 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Seasonal marsh in the NE corner of Tract 7.2, Sanctuary I. 33 Comment
  SEINET10644682  Bolboschoenus glaucus Lowell Ahart 1982-7-10 Ahart 3674 Butte On dry bare soil on bottom of dry duck pond, 1/4 mi SE of HQ, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CHSC55810  Bothriochloa laguroides var. torreyana Vernon H. Oswald; Lowell Ahart 1991-11-2 4883 Butte East side of Thermalito Diversion Pool ca. 0.3 mile north of Thermalito Diversion Dam, near Oroville. 73 Comment
  CHSC82428  Brachypodium distachyon Lowell Ahart 2002-5-7 9634 Butte High banks of a pond, at the beginning of a southeast branch of Schirmer Ravine, about 50 yards east of the pond on the east side of Cherokee Road, North Table Mountain, about 4 miles (air) north of Oroville. 228 Comment
  UC1025797  Brachypodium distachyon L. T. Burcham 1954-8-19 303 Butte approximately 6 mi n of Oroville 396 Comment
  CHSC38038  Brassica rapa R. E. Preston 1982-12-4 368 Butte In a field; n side of River Rd at bend at Bremner Ranch, ca. 7 mi sw of Chico. 33 Comment
  CHSC103727  Briza maxima Lowell Ahart 2010-5-16 16692 Butte About 1/4 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 368 Comment
  CHSC11334  Briza maxima Lowell Ahart 1962-5-5 Butte Near Honcut. 42 Comment
  CHSC81589  Briza maxima D. Tellefson 2000-4-27 Butte Near Table Mountain Golf Course, Oroville. 40 Comment
  JEPS117274  Briza maxima Lowell Ahart 2010-5-14 16636 Butte On the west side of Highway 32, just north of the entrance to the Disc Golf Area, Upper Bidwell Park, about 5 miles (air) northeast of Chico 376 Comment
  CAS-BOT-BC145535  Briza minor John Thomas Howell 1962-6-16 37610 Butte Sierra Nevada. Feather River West Branch southwest of Nelson Bar. 304 Comment
  JEPS119862  Briza minor Lowell Ahart 2012-5-17 18082 Butte On the north edge of Big Chico Creek, southeast of Table 21, south of the paved park road, northeast of the Deer Pen, Lower Bidwell Park, Chico. Comment
  SEINET11672243  Briza minor Unknown 1978-1 10 Butte ca 12 mi N of Chico on CA 99 at Broyles Rd 67 Comment
  CHSC2935  Brodiaea californica W. Fitzwater 1958-4-29 Butte On Shasta Hwy. 4 mi. N of Chico. Comment
  SEINET10472612  Brodiaea coronaria Lowell Ahart, Peter Ahart 1984-6-10 Ahart 4686 Butte Along edge of Hurleton Swedes Flat Rd, ca. 2 mi S of Forbestown Rd, ca. 12 mi SE of Oroville; Foothill Woodland; 450 m. 450 Comment
  CAS-BOT-BC478966  Brodiaea coronaria subsp. coronaria A. A. Heller 1914-5-8 11382 Butte Clear Creek school house Comment
  CHSC29657  Brodiaea elegans J. D. Jokerst 1980-5-28 798 Butte Top of North Table Mt, S of Cherokee Rd. 403 Comment
  SEINET10872217  Brodiaea elegans Lowell Ahart 1983-6-6 Ahart 4028 Butte Peter Ahart Ranch, ca. 2.5 mi ne of Honcut. Valley Grassland; 50 m. 50 Comment
  JEPS127076  Brodiaea elegans subsp. elegans Lowell Ahart 2016-5-24 20872 Butte About 150 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3/4 miles (air) northeast of Honcut. Comment
  CAS-BOT-BC482196  Brodiaea elegans subsp. elegans Lowell Ahart 1983-6-6 4028 Butte Peter Ahart Ranch, about 2 miles north and 1/4 mile east of Honcut 50 Comment
  CHSC29832  Brodiaea minor M. S. Taylor; R. S. Schlising, L. Ahart 1980-5-31 2761 Butte E side of Kunkle Reservoir, ca. 1/4 mi e of Pentz-Magalia Hwy, ca. 3 mi s of Paradise. 441 Comment
  CHSC80778  Brodiaea minor Vernon H. Oswald 1998-7-3 9245 Butte East slope of Little Butte Creek Canyon in Paradise, ca. 0.1 mi north of the boundary of Bille Park along a continuation of the Bille Park Nature Trail. 487 Comment
  SEINET194883  Brodiaea minor A. A. Heller 1927-5-3 14364 Butte Ten miles north of Chico Comment
  UC768609  Brodiaea minor R. F. Hoover 1937-5-18 2237 Butte 3 mi n Chico Comment
  SBBG45026  Brodiaea minor L. Constance 1941-5-28 2825 Butte foothills 3 mi SW of Paradise 304 Comment
  UC143027  Brodiaea minor Mrs. R. M. Austin Jul 1896 32 Butte Sutton House Comment
  CAS-BOT-BC484576  Brodiaea purdyi Mrs. J. H. Morrison 1932-5-1 s.n. Butte Durham Comment
  UCD78198  Brodiaea sierrae R. E. Preston 2002-6-7 1810 Butte Ca. 0.8 mi s of Jarbo Gap, along Hwy 70. 650 Comment
  CAS-BOT-BC486482  Brodiaea sierrae Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  RSA718343  Bromus carinatus L. Ahart 2006-6-9 12643 Butte Along the north side of the service road to Bardes Bar along the North Fork of the Feather River, about 70 yards east of the electric tower, on the east side of Highway 70, about 2 3/4 miles (air) southwest of Pulga. 535 Comment
  CDA31576  Bromus carinatus var. carinatus L. Ahart 2004-7-23 11301 Butte North of the West Branch Campground, south of the Bridge across the West Branch of the Feather River, about 1 1/2 miles (air) west of Philbrook Reservoir Dam, about 3 3/4 miles (air) southeast of Butte Meadows. Comment
  CHSC82470  Bromus carinatus var. carinatus Lowell Ahart; John Dittes, Josephine Guardino 2002-6-21 9736 Butte On the sides of a poor dirt road, Watson Ridge, about 2 miles (air) northeast of Bald Rock Dome, about 5 miles (air) north of Feather Falls (the town). Comment
  CAS-BOT-BC148837  Bromus carinatus var. marginatus Lowell Ahart 1984-6-10 4706 Butte Along the edge of the dirt road, about 2 miles southwest of the Forbestown Diversion Dam, northeast of Forbestown. 700 Comment
  SEINET11688468  Bromus caroli-henrici Unknown 1985-1 4939 Butte Peter Ahart Ranch, ca 1 mi N & 0.25 mi E of Honcut, ca 12 mi S of Oroville 37 Comment
  SEINET10523276  Bromus catharticus Hillier 1966-5-30 Hillier s.n. Butte In cultivated lawn by drive on the corner of W. Sacremanto Ave, and the Esplanade. Chico. Comment
  CDA13294  Bromus ciliatus G. F. Hrusa, T. D. Wilfred 1996-7-9 13142 Butte Plumas National Forest; Above Jordan Creek S of Hwy 162 near Roger's Cow Camp. Comment
  CAS-BOT-BC156027  Bromus diandrus A. A. Heller 1914-4-11 11280 Butte Hills 8 miles north of Oroville. Comment
  CAS-BOT-BC156029  Bromus diandrus H. E. Brown 1897-4-15 199 Butte Near Clear Creek. 53 Comment
  UCD59475  Bromus diandrus A. A. Heller 1914-4-11 11280 Butte 8 miles N of Oroville. Comment
  HSC41095  Bromus hordeaceus J. P. Smith, J. O. Sawyer 1973-4-14 6047 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  JEPS116101  Bromus hordeaceus Lowell Ahart 2009-5-8 15668 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
  JEPS106269  Bromus inermis subsp. inermis Lowell Ahart 2004-7-23 11307 Butte On the west side of Philbrook Reservoir Road, about 20 yards south of the bridge across the West Branch of the Feather River, about 1 1/2 miles (air) northwest of Philbrook Reservoir Dam, about 3 3/4 miles (air) southeast of Butte Meadows 1507 Comment
  CAS-BOT-BC162456  Bromus laevipes John Thomas Howell 1962-6-15 37514 Butte Sierra Nevada. Magalia. 731 Comment
  SEINET10869077  Bromus laevipes Lowell Ahart 1983-6-15 Ahart 4056 Butte Peter Ahart Ranch, ca. 2.5 mi ne of Honcut. Foothill Woodland; 50 m. Along the edges of North Honcut Creek. 50 Comment
  CHSC35671  Bromus madritensis subsp. madritensis R. E. Preston 1982-4-25 264 Butte Slope at lakeside; Lake Oroville, ca. 1/2 mi ne of Lime Saddle Powerhouse, ca. 4.5 mi se of Paradise. 280 Comment
  UC1131196  Bromus madritensis subsp. rubens C. G. Albertus 1933-5-29 9 Butte 1 1/2 mi n of Wick Comment
  SEINET6778931  Bromus mollis CSUC 1980-7-15 Butte Chico, Meridian road Comment
  CHSC49517  Bromus orcuttianus Vernon Oswald 1985-7-2 1874 Butte Hwy 32 2.3 mi s of Lomo. Logged area. 1133 Comment
  JEPS87478  Bromus orcuttianus Lowell Ahart 1993-6-26 7020 Butte about 1 mi w of Lost Creek Reservoir 1188 Comment
  SEINET11688661  Bromus rubens J. M. Lund 1980-1 20 Butte 0.5 mi N of airport turn off, on Cohasette road, N of Chico 76 Comment
  CHSC88168  Bromus suksdorfii Lowell Ahart 2004-8-2 11333 Butte On both sides of the dirt County Road, between the Sky High Mine and Dresser Camp, about 2 miles (air) southeast of the Philbrook Reservoir Dam, about 7 miles (air) southeast of Butte Meadows. 1912 Comment
  CHSC35748  Bromus tectorum R. E. Preston 1982-5-18 283 Butte Roadside. Forbestown Diversion Dam. 548 Comment
  HSC95509  Calamagrostis canadensis var. langsdorffii L. Ahart 1997-7-11 7757 Butte About 1/4 mi. (air) E of Bald Mtn., about 4 mi. (air) NE of Stirling City, E of the dirt road 1677 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
  JEPS128725  Callitriche fassettii Lowell Ahart, Emily Meigs Doe 2017-4-1 21388 Butte East of the canyon that is the south branch of Coal Canyon, about 1 mile (air) northwest of the improved parking area, North Table Mountain, about 8 miles (air) north of Oroville. Comment
  CHSC12181  Callitriche heterophylla var. bolanderi Lowell Ahart 1973-3-26 186 Butte Peter Ahart Ranch, Honcut. 45 Comment
  SEINET10906553  Callitriche heterophylla var. bolanderi Lowell Ahart 1984-5-7 Ahart 4595 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
  JEPS95736  Callitriche heterophylla var. heterophylla Lowell Ahart 1995-5-26 7574 Butte 12 mi S of Oroville (Peter Ahart Ranch, 2 mi N and 1/4 mi E of Honcut) 36 Comment
  SD36  Calocedrus decurrens E. B. Copeland 1931-7-28 Butte Jonesville, on ridge west of North Willow Creek 1650 Comment
  CHSC24839  Calochortus albus M. S. McCrum 1976-4-27 8 Butte Ca. 6.5 mi e of Chico, 100 yd s of Butte Creek, 0.1 mi w of Covered Bridge. 112 Comment
  CAS-BOT-BC487513  Calochortus albus A. A. Heller; H. E. Brown 1902-5-7 5484 Butte Berry Canyon (Near Clear Creek) Comment
  CAS-BOT-BC487514  Calochortus albus A. A. Heller; H. E. Brown 1902-5-7 5484 Butte Berry Canyon (Near Clear Creek) Comment
  RSA21309  Calochortus albus Carl B. Wolf 1937-5-13 8654 Butte Sierra Nevada Foothills, W side of So. Honcut Creek, 2 6/10 mi E of Bangor. 213 Comment
  UCD139503  Calochortus coeruleus K. Lui 1998-5-24 24 Butte Lassen National Forest, Pulga, unpaved road 1.5 km south of Poe Dam where State Route 70 crosses North Fork Feather River. 463 Comment
  CHSC38873  Calochortus luteus Vernon Oswald 1983-5-15 495 Butte Upper Bidwell Park, Chico, in the Omicron Enclosure (n. boundary 500ft e of the junction of Upper Park Rd. and Wildwood Ave.). 85 Comment
  CHSC47585  Calochortus luteus Lowell Ahart 1977-5-2 1342 Butte Peter Ahart Ranch, about 2 miles north and 2 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  JEPS117716  Calochortus luteus Lowell Ahart 2010-6-1 16758 Butte On the south side of the Guardians Trail or South Rim Trail, under the power lines, upper Bidwell Park, about 2 miles (air) east of Chico 144 Comment
  CAS-BOT-BC491845  Calochortus luteus David 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
  CHSC100830  Calochortus monophyllus F. J. Fuller 1982-4-18 24 Butte Ca. 20 ft sw of Crown Pt Rd, 1.0 mi e of Hwy 32, 11 mi nw of Chico. 347 Comment
  UC311628  Calochortus monophyllus Mrs. B. O. Clark 1915-4-12 213 Butte near Paradise (in the lower Sierra Nevada); Sierra Nevada 600 Comment
  UC3375  Calochortus monophyllus Carl Purdy 1821-1 Butte Chico Comment
  UC648384  Calochortus monophyllus Marion Ownbey and Ruth P. Ownbey 1938-7-13 1730 Butte 15 mi ne Chico Comment
  UC672149  Calochortus monophyllus Mrs. Rurie Lyle 1928-4-20 Butte near Chico Comment
  HSC43135  Calochortus monophyllus Maralyn O'Meara 1974-4-20 284 Butte Cherokee-Table Mtn. Rd., 1 mi. S of Cherokee 305 Comment
  POM109674  Calochortus monophyllus Mrs. R. M. Austin 1883-05 14 Butte Little Chico Creek Comment
  SEINET10469599  Calochortus monophyllus Mary Susan Taylor 1980-4-18 Taylor 2511 Butte T23N R3E ne sec 27 Paradise quad. Ca. 1 mi S of Nimshew, ca. 1/4 mi E of Nimshew Road; Yellow Pine Forest. With J.D. Jokerst. 610 Comment
  CHSC38876  Calochortus superbus Vernon Oswald 1983-5-18 505 Butte Upper Bidwell Park, Chico, 300 ft n of Upper Park Rd. and 2.4 mi e of the power line. 243 Comment
  CHSC53698  Caltha leptosepala var. biflora Kirsten Tarp 1982-7-16 208 Butte In Kimshew Creek, Crane Valley. 1591 Comment
  CAS-BOT-BC311785  Calycadenia multiglandulosa Lowell Ahart 1981-9-26 3208 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC106082  Calycadenia oppositifolia John Thomas Howell 1962-6-16 37623 Butte Nelson Bar - Sierra Nevada 213 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
  RSA107429  Calycadenia oppositifolia L. S. Rose 1955-6-15 s.n. Butte 3 miles E of Pentz, Canyon of W Branch of N Fork of Feather River 183 Comment
  SBBG60970  Calycadenia oppositifolia A. A. Heller 1926-5-22 13940 Butte Richardson Springs Rd 3 mi N of Chico Comment
  UC88992  Calycadenia oppositifolia Mrs. R. M. Austin May 1883 Butte Comment
  CHSC110254  Calycadenia truncata L. P. Janeway 2012-10-11 11071 Butte Northern High Sierra Nevada. Plumas National Forest; southwest-ern end of Rocky Ridge, 0.8 km west of Ponderosa Way/Rim Road, near high-voltage power lines. 895 Comment
  SEINET10475215  Calycadenia truncata Mary Susan Taylor 1981-6-19 Taylor 3960 Butte T22N R5E ne sec 6. Pulga quad. On serpentine, N side of Feather River Hwy 70, at NW end of Pulga bridge and along Pulga Rd ca. 1/4 mi, ca. 20 mi NE of Oroville. Open & dry weathered reddish serpentine. 1600 ft elev. 488 Comment
  CAS-BOT-BC90925  Calycanthus occidentalis A. A. Heller 1913-6-6 10782 Butte Ditch along Table Mountain 8 miles north of Oroville. 182 Comment
  POM68555  Calycanthus occidentalis C. C. Bruce 1897-06 1822 `` Butte Big Chico Comment
  UCD68064  Calycanthus occidentalis Paul Quiggle 1976-5-24 9 Butte Lassen National Forest, approximately 35 miles East of Chico, California, on the East bank of Deer Creek. Plant found in mid-day sunlight. Comment
  CHSC12007  Calyptridium monospermum J. B. Copeland 1930-7-9 413 Butte Jonesville. 1500 Comment
  UC82816  Calyptridium monospermum Mrs. R. M. Austin 1896-7-1 696 Butte Colby Comment
  JEPS108900  Calystegia malacophylla subsp. malacophylla Lowell Ahart 2006-7-11 12942 Butte About 100 yards south of Humboldt Road, about 1 3/8 miles (air) southwest of Butte Meadows 1400 Comment
  UCD126161  Calystegia occidentalis E. B. Copeland 1931-7-4 674 Butte Jonesville. 1550 Comment
  JEPS118206  Calystegia occidentalis subsp. occidentalis Dean W. Taylor 2004-6-17 19114 Butte Rocky Ridge, north side Feather River Canyon, Forest Road 23N06B under the electrical transmission line 899 Comment
  RSA394851  Calystegia occidentalis subsp. occidentalis L. Ahart, Peter Ahart 1984-6-10 4717 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown. 700 Comment
  RSA754848  Calystegia occidentalis subsp. occidentalis L. Ahart 2009-5-30 15775 Butte North side of Ten Mile House Road, Upper Bidwell Park, about 3/8 air mile southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 380 Comment
  CHSC31023  Calystegia occidentalis subsp. occidentalis M. S. Taylor 1979-6-12 2299 Butte Off dirt rd in dry areas, between Magalia serpentine area and Feather River, ca 1/2 mi. downhill from jcty of Coutelenc Rd and the Skyway. 670 Comment
  UC426977  Campanula prenanthoides E. B. Copeland 1930-8-4 482 Butte Jonesville 1500 Comment
  SEINET10463076  Campanula prenanthoides Mary Susan Taylor 1977-6-25 Taylor 1370 Butte Foothill Woodland-Yellow Pine Forest transition zone, on Ponderosa Way betwe en Cohasset and Forest Ranch. 610 Comment
  SEINET10463084  Campanula prenanthoides Jones 1897-7-9 Jones s.n. Butte ON RD FROM PRATTVILLE TO CHICO NEAR CHICO Comment
  CAS-BOT-BC37064  Capsella bursa-pastoris Lowell Ahart 1986-11-7 5429 Butte East of the Feather River, north of the Oroville Gridley Highway, about 3 miles east of Gridley. 28 Comment
  CHSC3623  Capsella bursa-pastoris John Francis 1966-2-21 28 Butte Orchard across road from Durham Cemetery. Comment
  CHSC82090  Capsella bursa-pastoris Lowell Ahart 2002-3-2 9415 Butte Along the sides of a dirt road by a rice field, west of the Midway, about 1 mile north of Richvale. 30 Comment
  JEPS122230  Capsella bursa-pastoris Lowell Ahart 2014-4-26 19418 Butte On the south side of Butte City Highway (Highway 162), collected from the railroad to the east about 200 yards, east of the Rice Experiment Station. Comment
  CHSC28904  Cardamine oligosperma M. S. Taylor 1980-3-1 2341 Butte On north facing bluffs looking into Nance Canyon, ca. 1/4 mi n of Neal Rd, ca 3 mi e of its jct with Hwy 99, ca. 7 mi s of Chico. 121 Comment
  CHSC34479  Cardamine oligosperma M. S. Taylor 1975-4-26 521 Butte On e side of Kunkle Reservoir, ca. 500 yds e of Pentz-Magalia Hwy, ca. 1 mi se of Paradise. 609 Comment
  CHSC47382  Cardamine oligosperma Lowell Ahart 1973-3-14 175 Butte Pasture fields, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC61208  Cardamine oligosperma Vernon H. Oswald; Lowell Ahart 1993-3-24 5246 Butte E side of Dry Creek Canyon N of the historical site of Pentz, on the east side of a secondary drainage entering Dry Creek 2 mi. N of Pentz Rd. 262 Comment
  JEPS107336  Cardamine oligosperma Lowell Ahart 2005-4-2 11684 Butte Overflow area on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico 25 Comment
  RSA767798  Cardamine oligosperma L. Ahart 2010-2-13 16566 Butte Parking area, Peter Ahart Ranch, abut 1.5 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 34 Comment
  UCD114565  Cardamine oligosperma M. S. Taylor 1981-4-5 3498 Butte at end of Dark Canyon Road near Turnout and restroom, up from boat ramp to W Br Feather River, 3.5 miles south of Big Bend Roads junction, 5 air miles south of Jarbo Gap on Highway 70. 304 Comment
  CHSC65544  Cardamine pachystigma B. Castro; L. Janeway 1995-2-21 557 Butte On W end of Watson Ridge, on W-trending ridge ca 300 ft W of where USFS Rd 21N25A appears to end, but actually narrows and turns abruptly to the S. 996 Comment
  CAS-BOT-BC18211  Carex Lowell Ahart 1989-5-28 6283 Butte South of Oregon Gulch Road, about 0.5 mile north of the Cementery, about 1.5 mile west of Rocky Point. 335 Comment
  UC8055  Carex W. H. Brewer 1470 Butte near Chico Comment
  CHSC45073  Carex abrupta Vernon Oswald 1987-7-13 3112 Butte Near Summit Lake on the n side of Snow Mt, ca. 4 mi (air) se of Jonesville. At the turn-around at the end of the spur road on the n side of the lake. 1901 Comment
  CHSC52279  Carex abrupta L. P. Janeway; R. A. Schlising, B. Castro 1988-7-23 3081 Butte Near Scotts Joh Cr 2.7 mi N of the Humboldt-to-Humbug Road. 1920 Comment
  CHSC34165  Carex amplifolia Lowell Ahart 1981-9-21 3195 Butte On bottom of French Creek, ca. 1 mi w of Sly Creek Reservoir. 1300 Comment
  CAS-BOT-BC17808  Carex amplifolia L. P. Janeway 1988-6-25 2874 Butte Creek along Bull Hill Road 2.2 miles from the Skyway. 1508 Comment
  CHSC105796  Carex angustata Lowell Ahart 2010-9-28 17261 Butte West edge of a 10 acre meadow, about 50 yards east of the poor dirt road, about 20 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1886 Comment
  RSA700399  Carex angustata L. Ahart 2004-8-2 11327 Butte About 200 yards east of Keyser Creek, on the north side of the dirt county road, about 0.75 mile (air) NE of Oak Point, about 0.5 mile (air) west of Big Kimshew Creek, about 1.75 miles SE of Bald Mountain. 1453 Comment
  CAS-BOT-BC18050  Carex athrostachya L. P. Janeway; C. A. Janeway 1986-8-31 1813 Butte Northeast side of Philbrook Reservoir at PG&E picnic area. 1691 Comment
  CAS-BOT-BC18056  Carex athrostachya Lowell Ahart 1981-8-15 3044 Butte Snag Lake (about 3 miles south of Jonesville). 1524 Comment
  CHSC45045  Carex athrostachya Vernon Oswald 1987-6-23 3021 Butte High Lakes Rd. 4.8 mi (odometer) n of Philbrook Rd. 1889 Comment
  RSA4412  Carex athrostachya E. B. Copeland 1929-7-28 607 Butte Jonesville. 1500 Comment
  UC478555  Carex athrostachya E. B. Copeland 1928-7-28 607 Butte Jonesville, about the edges of the Lily Pond 1700 Comment
  CHSC43867  Carex aurea Vernon Oswald 1987-5-2 2363 Butte East side of Little Chico Creek Canyon ca. 1 mi se of Forest Ranch. 609 Comment
  UC600699  Carex aurea H. F. Copeland 1920-8-1 171 Butte Jonesville Comment
  SEINET7291831 Image available Carex aurea E. B. Copeland 1930-6-23 608 Butte Jonesville Comment
  CHSC45076  Carex bolanderi Vernon Oswald 1985-6-2 1797 Butte Upper Bidwell Park, Chico, along Yahi Trail ca. 2000 ft w of the turn-around at the e end of Upper Park Road. 204 Comment
  CAS-BOT-BC19604  Carex brainerdii L. P. Janeway 1987-6-26 2300 Butte On Granite Ridge. Along Concow Road 2.0 miles north of Rag Dump. 1295 Comment
  CHSC48543  Carex brainerdii L. P. Janeway 1987-6-8 2161 Butte Along French Cr ca 1/2 mi N of Bush Cr and near bridge of road to Coyote Gap. 640 Comment
  CHSC48546  Carex brainerdii L. P. Janeway 1987-7-5 2450 Butte 0.4 mi E of a spur road from the Concow Rd, which is 1.0 mi SW of Jones Meadow. 1798 Comment
  CHSC42691  Carex capitata L. P. Janeway; R. A. Schlising, B. Castro, Pauleen Broyles 1987-7-19 2505 Butte Southernmost pond on slopes on south side of Coon Hollow. 1767 Comment
  CHSC111018  Carex cyrtostachya L. P. Janeway; Lowell Ahart, Linnea Hanson 2007-7-10 9112 Butte Northern High Sierra Nevada. Small seepage/drainage (now dry) on the west edge of a low broad granite slab, 170 m east-northeast of Bean Creek Road and 1.1 km northeast of Little Bald Rock. 1013 Comment
  CHSC115853  Carex cyrtostachya Peter F. Zika 2011-7-6 25535 Butte Mooreville Ridge Road, 0,8 road miles N of dam on Lost Creek Reservoir, northern Sierra Nevada Highlands. 1055 Comment
  CHSC106048  Carex divulsa L. P. Janeway 2010-6-3 9989 Butte Sacramento Valley. Oroville: Centennial Plaza on top of the levee along the south side of Feather River between the north ends of Lincoln Street and Oak Street. 57 Comment
  CHSC45078  Carex echinata subsp. echinata Vernon Oswald 1983-7-6 829 Butte Near Humboldt Rd. 3.4 mi n-e of Butte Meadows. 1432 Comment
  CHSC52864  Carex echinata subsp. echinata L. P. Janeway 1987-6-27 2348 Butte Meadow just E of Keyser Cr; 4.3 mi N of Ramsey Bar along the Concow Rd. 1478 Comment
  SEINET7558570 Image available Carex feta L. P. Janeway 2003-6-8 7818 Butte High Cascade Range. Flea Valley, at head of Concow Creek. Pulga 7.5' quad. 1116 Comment
  CAS-BOT-BC19999  Carex feta L. P. Janeway 1988-7-2 2954 Butte Upper reach of Brush Creek, about 1.5 mile S of town of Brush Creek. 952 Comment
  CAS-BOT-BC20000  Carex feta L. P. Janeway 1987-5-20 2077 Butte Along Hwy 70 2.1 miles NE of Pulga bridge, near Heinz Creek. 457 Comment
  UCD140426  Carex heteroneura L. P. Janeway; R. A. Schlising 1988-7-16 3015 Butte above Willow Creek, 1 mile west of Humbug Road. 1798 Comment
  CHSC47058  Carex hirtissima L. P. Janeway 1989-5-17 3241 Butte Drying wet area along Forbestown Rd 9.2 mi E of Oroville-Quincy Hwy, and 0.1 mi W of Lower Forbestown Rd. 798 Comment
  RSA88708  Carex hirtissima L. S. Rose 1937-6-10 37375 Butte Butte County: Forbestown. 838 Comment
  SEINET11191798  Carex hoodii Unknown 1999-7-17 6506 Butte Butte County Comment
  RSA0119041  Carex integra Lowell Ahart 2014-7-7 19592 Butte On the south side of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1665 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
  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
  CHSC44931  Carex laeviculmis Lowell Ahart 1988-7-31 6154 Butte Road gutter, north of a small stream, 1 1/2 air miles west and a little south of Bald Mountain, about 3 air miles north-east of Stirling City. 1066 Comment
  CHSC92369  Carex laeviculmis Robert F. C. Naczi; Lawrence P. Janeway 2004-7-23 10501 Butte Ca. 3 mi SSE of village of Butte Meadows, along Coon Creek at its crossing by the Skyway (county road 51262), (WGS84). 1551 Comment
  CHSC112102  Carex leavenworthii Lowell Ahart 2012-6-14 18190 Butte On the south side of the path, southwest of CARD Community Center,Lower Bidwell Park, Chico. 62 Comment
  CHSC42815  Carex lemmonii L. P. Janeway 1987-6-13 2215 Butte Mdw just NE of jct of Concow Rd and rd to Flea Mtn. 1188 Comment
  POM213964  Carex lemmonii H. F. Copeland 1930-7-25 1362 Butte Jonesville. 1524 Comment
  UC406292  Carex lemmonii E. B. Copeland 1929-7-28 Butte Jonesville Comment
  SEINET12649574 Image available Carex luzulina var. ablata Lowell Ahart 2010-1 17219 Butte 1918 Comment
  SEINET6190661 Image available Carex macloviana subsp. subfusca E. B. Copeland 1929-7-20 611 Butte Jonesville; Jones Creek 1500 Comment
  CHSC52281  Carex mariposana L. P. Janeway; R. A. Schlising 1988-7-1 2922 Butte Rocky edges of Summit Lake (flank of Snow Mtn). 1889 Comment
  CHSC52255  Carex microptera L. P. Janeway; R. A. Schlising 1988-7-1 2936 Butte Creekbed of Willow Cr where Humbug Rd crosses. 1874 Comment
  CHSC12172  Carex multicaulis Lowell Ahart 1973-5-6 Butte Near Challenge. 762 Comment
  SEINET10713501  Carex multicaulis A. Arthur Heller 1913-6-7 Heller 10794 Butte Near Stirling. 1036 Comment
  CHSC52260  Carex nebrascensis L. P. Janeway; Patty Costello 1987-9-5 2578 Butte NW side of Big Chico Cr below the road to Soda Springs campground near Hwy 32. 1127 Comment
  CHSC33862  Carex nudata J. D. Jokerst 1980-4-1 536 Butte East Branch Mud Creek. Comment
  CHSC61220  Carex nudata Lowell Ahart 1993-4-8 6931 Butte On the banks and sides of a deep almost dry ditch, on the south side of the Biggs Princeton Road, about 1 1/4 miles west of Biggs. 30 Comment
  SEINET10711616  Carex nudata Lawrence P. Janeway 1988-6-14 Janeway 2768 Butte T25N, R3E, Stirling City quad. SE1/4 of sec. 34. Along West Branch Butte Creek at crossing of road 1.9 mi west from Hwy 32 towards Ewalt Camp. Forming dense clumps in rocks at edge of and in te creek. With Darmera peltata. 922 Comment
  CHSC45051  Carex pachystachya Vernon Oswald 1987-5-7 2378 Butte Butte Creek Reserve on the n side of Butte Creek, e of the Skyway. 74 Comment
  CHSC44695  Carex pellita L. P. Janeway 1988-7-29 3112 Butte Mdw on S side of Butte Cr 1/2 mi W of Cherry Hill. 1402 Comment
  CHSC106654  Carex pendula Peter F. Zika 2010-5-16 24824 Butte Shaded or partly shaded shores of Comanche Creek, both sides of channel and bridge, junction of Breslauer Avenue and Lone Pine Avenue, SW of Chico, Janeways station, Sacramento Valley (ScV). 45 Comment
  CHSC52241  Carex pendula L. P. Janeway 1989-11-23 3652 Butte South side of city of Chico; along Comanche Creek (Edgar Slough) just SW of Meyers Ave. 59 Comment
  JEPS106493  Carex pendula L. P. Janeway 2004-6-20 8137 Butte 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
  CHSC48559  Carex rossii L. P. Janeway; R. A. Schlising 1988-7-22 3064 Butte Upper canyon of Philbrook Cr 0.7 mi W of the pass. Near creeklet in ravine just above road. 1905 Comment
  CHSC84709  Carex subfusca L. P. Janeway 2003-6-8 7821 Butte High Cascade Range. Flea Valley: meadow at head of Concow Creek. 1100 Comment
  SEINET8573794 Image available Carex subfusca Unknown 2009-1 24508 Butte Comment
  UC478549  Carex subfusca E. B. Copeland 1929-7-20 611 Butte in woods by Jones Creek Jonesville 1500 Comment
  CAS-BOT-BC116734  Carex subfusca Clarence Roy Quick 1963-7-16 63 51 a Butte Section Corner Meadow, E of Pilga, Feather River Canyon. 1463 Comment
  CDA42898  Carex texensis L. Ahart 2012-6-14 18182 Butte At the entrance of Lower Bidwell Park, east of Woodland Avenue, Chico. Comment
  CHSC47053  Carex texensis L. P. Janeway; B. Castro, Jean Witzman 1989-6-4 3271 Butte City of Chico; unmowed lawn near corner of Cypress and E 7th St. 60 Comment
  CHSC44990  Carex utriculata S. C. Morey 1983-8-3 689 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  SEINET8413043  Carex utriculata A. A. Heller 1914-6-22 11494 Butte Chico Meadows, 1219 Comment
  CDA13262  Carex xerophila G. F. Hrusa, T. D. Wilfred 1996-7-8 13106 Butte Sierra Nevada; Corner of Skyway Rd. and Rd. to Paradise Lake [Cuotolenc Rd.], at N boundary of Magalia. 709 Comment
  SEINET14183557  Castilleja W. Short 1959-4-11 14 Butte US Hwy 40, 15 miles E of Oroville. 549 Comment
  CAS-BOT-BC249590  Castilleja applegatei subsp. pinetorum John Thomas Howell 1962-6-15 37501 Butte Magalia 731 Comment
  CHSC43191  Castilleja applegatei subsp. pinetorum Richard J. Slama 1981-4-20 8 Butte On s rim of canyon. Ca. 7 mi se of Chico, ca. 5 mi. e of hwy. 99 on Skyway rd. 243 Comment
  CHSC55411  Castilleja applegatei subsp. pinetorum Dennis W. Morris 1991-4-7 12 Butte 9 mi northeast of Chico at Hwy 32 and Crown Point Road; west side of Crown Point Road. 502 Comment
  UC885465  Castilleja applegatei subsp. pinetorum A. A. Heller 1917-7-26 12737 Butte Butte Meadows 1280 Comment
  CAS-BOT-BC255462  Castilleja applegatei var. pinetorum Peter H. Raven 1954-4-17 6619 Butte 10 miles above Oroville on road to Pulga 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
  CHSC87197  Castilleja campestris subsp. campestris Lowell Ahart 2004-4-4 10724 Butte Bottom of a vernal pool, about 1/4 mile east of Wilber Road, east of the high hill crossed by Wilber Road, pasture, about 3 miles (air) west of Thermalito. 48 Comment
  JEPS124166  Castilleja exserta subsp. exserta Lowell Ahart 2015-3-27 19972 Butte South of Coal Canyon Falls, about 1 1/2 miles (air) northwest of the improved parking area, North Table Mountain, about 8 miles north of Oroville. Comment
  CHSC30794  Castilleja lacera M. S. Taylor; J. D. Jokerst 1980-4-18 2533 Butte On e side of Humbug Rd, ca. 3 mi sw of Nimshew, in Foothill Woodland. 518 Comment
  UC886502  Castilleja lacera A. A. Heller 1915-5-28 11904 Butte near Cohasset (Sierra foothills); Sierra Comment
  CDA41400  Castilleja miniata T. C. Fuller 1962-7-12 9175 Butte Road to Jonesville, 2 miles east of Butte Meadows. 0 Comment
  CAS-BOT-BC195579  Catapodium rigidum Lowell Ahart 1982-5-3 3406 Butte Peter Ahart Ranch, ca. 1 mi. N and 2.5 mi. E of Honcut 50 Comment
  CAS-BOT-BC40501  Caulanthus lasiophyllus Lowell Ahart 1983-5-7 3966 Butte Peter Ahart Ranch, about 1.5 miles north and 2 and 1/8 miles east of Honcut. 50 Comment
  CAS-BOT-BC48810  Ceanothus cuneatus John Thomas Howell 1975-6-15 51079 Butte about 5 miles from Paradise on Skyway to Chico Comment
  CHSC52124  Ceanothus cuneatus John Copeland 1980-2-17 6 Butte 1.4 mile se of Cohasset Rd., 5 miles e of Chico Airport. Comment
  CHSC64128  Ceanothus cuneatus Mark D. Reiser 1992-4-21 20 Butte Meadow ca. 300 yds sw of Vilas rd., Cohasset Stage, ca. 8 mi ne of Chico Municipal Airport. 609 Comment
  CHSC77440  Ceanothus cuneatus var. cuneatus Laura Bogni 1997-3-25 7 Butte Magalia grove; west side of Coutelenc Rd.; 1 mi. due W of Sawmill Peak; 1/2 mi. SE of Magalia Reservoir. 701 Comment
  UCD123472  Ceanothus cuneatus var. cuneatus D. O. Burge 2007-3-27 815 e Butte Butte Creek watershed, below Doe Mill Ridge, on slope above Butte Creek, accessed via north-trending foot trail from 13411 Bean Flat Road, 1.0 road miles from Centerville Road on Bean Flat Road . 15.1 km 74 deg. (True) ENE of Chico. 243 Comment
  CHSC46798  Ceanothus diversifolius R. A. Schlising; P. Broyles 1988-7-9 4576 Butte E of Paradise and Magalia, and N of Oroville and Jarboe Gap; along Rim road. 792 Comment
  CAS-BOT-BC50778  Ceanothus integerrimus A. A. Heller; H. E. Brown 1902-5-7 5481 Butte Berry Canyon (Near Clear Creek) Comment
  CHSC11993  Ceanothus integerrimus E. B. Copeland 1929-7-14 383 Butte Jonesville. 1650 Comment
  CHSC81297  Ceanothus integerrimus J. Trizzino 2001-4-24 48 Butte Yahi Trail off Wildwood Road in Upper Bidwell Park, about 3/8 mi from trailhead. Riparian corridor along Big Chico Creek. 91 Comment
  UC600527  Ceanothus integerrimus H. F. Copeland 1930-7-26 Butte Jonesville Comment
  JEPS97589  Ceanothus lemmonii R. D. Stone and W. B. Davilla 1984-4-21 596 Butte ca. 0.3 mi SE of De Sabla Powerhouse; Butte Creek drainage 609 Comment
  RSA19310  Ceanothus lemmonii L. S. Rose 1937-6-10 37377 Butte Forbestown. 838 Comment
  RSA300946  Ceanothus lemmonii D. C. Michener 1982-7-28 4141 Butte 4.4 miles SE of jct with 32 on Garland road, 3.1 miles NW of jct of Powellton road and Skyway road near De Sabla Comment
  UC870592  Ceanothus lemmonii Lewis S. Rose 1937-6-10 37377 Butte Forbestown 838 Comment
  SEINET10493643  Ceanothus lemmonii Mary Susan Taylor 1979-10-13 Taylor 2268 Butte T22N R4E se 1/4 sec 32. Serpentine outcrop on Jordan Hill Road (Ponderosa Way on some maps), ca. 8.7 mi N of its jct with Concow Road, ca. 2 mi SE of Magalia. With Jim Jokerst. 945 Comment
  CHSC86137  Ceanothus parvifolius John Dittes 2002-6-29 624 Butte Northern High Sierra Nevada Range; Watson Ridge; ca. 2.3 air-miles south of Middle Fork Feather River, ca. 2.9 air-mile west by southwest of Cascade, ca. 6.8 air-miles north by northeast of town of Feather Falls. On slope above FS access road. 1255 Comment
  CAS-BOT-BC52007  Ceanothus prostratus A. A. Heller 1939-4-10 15371 Butte upper end of Cohasset Comment
  CHSC1516  Ceanothus prostratus 1937-4-1 Butte Paradise. 609 Comment
  CHSC3553  Ceanothus prostratus Gary Dutton 1966-2-26 84 Butte Found along road near Paradise Calif. about 4 miles N. of town. Comment
  POM193369  Ceanothus prostratus E. B. Copeland 1930-7-7 425 Butte Joneville. 488 Comment
  RSA300948  Ceanothus prostratus D. C. Michener 1982-7-28 4140 Butte Along 32, 3.5 miles NE of Forest Ranch (at Nopel road), Yellow pine forest Comment
  SEINET194924  Ceanothus prostratus A. A. Heller 1941-6-22 16179 Butte Cohasset Comment
  UC426918  Ceanothus prostratus E. B. Copeland 1930-7-7 425 Butte Jonesville 1600 Comment
  UC177577  Ceanothus velutinus var. velutinus H. M. Hall July 1914 9804 Butte near Butte Creek (Jonesville); near Butte Creek, Jonesville 1524 Comment
  JEPS120068  Celtis australis Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18022 Butte On the north side of Big Chico Creek, south of the path, south of the paved park road, south of the old walnut orchard, south of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  CAS-BOT-BC282003  Centaurea calcitrapa W. Gilbert; R. Dodd 1970-7-22 s.n. Butte Highway 32 to Lake Almanor, NE of Forest Ranch, 19.5 miles NE of Chico Comment
  CDA31996  Centaurea melitensis L. Ahart 2008-5-23 15769 Butte On the sides of Guardians Trail, about 200 yards southwest of Pine Trail, 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 Comment
  CAS-BOT-BC272093  Centaurea melitensis A. A. Heller 1916-4-13 1753 Butte Stilson Canyon east of Chico 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
  CHSC3362  Centaurea solstitialis M. Gregg 1966-5-7 161 Butte Approx. 5 miles north east of the Skyway on Humbug Rd. Comment
  JEPS107299  Centaurea solstitialis Lowell Ahart 2005-4-14 11722 Butte North side of a deep drain ditch, about 200 feet east of the railroad tracks, north of Spruce Street, Gridley 28 Comment
  UCD130088  Centaurea solstitialis A. A. Heller 1914-8-13 11679 Butte Chico. Comment
  CHSC30949  Centaurium tenuiflorum Lowell Ahart 1980-7-4 2451 Butte Near the Oak Grove Cemetary, ca. 1/2 mi se of Hurleton. 600 Comment
  CDA38375  Centaurium tenuiflorum L. Ahart 1998-7-1 8025 Butte 100 yards south of an east west fence, about 5/8 mile north of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  CHSC70817  Centranthus ruber B. Castro 1995-4-13 559 Butte N edge of town of Oroville, on open, disturbed cobbly flat on the S side of the Feather River, just E of its crossing under Hwy 70. On S side of levee, in vacant lot by residential area. 51 Comment
  CHSC66662  Centromadia parryi subsp. rudis Vernon H. Oswald; Lowell Ahart 1996-7-22 8096 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. On the edge of the public access parking lot on Seven Mile Lane, adjacent to the SE corner of Tract 2, Sanctuary II. 33 Comment
  CHSC102618  Cephalanthus occidentalis var. californicus Lowell Ahart 2009-7-9 16019 Butte On the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 203 Comment
  SEINET10500789  Cephalanthus occidentalis var. californicus Mary Susan Taylor 1980-8-30 Taylor 3324 Butte T20N R4E nw border sec 23, Oroville Dam quad. E Table Mt, in Potter Ravine, along creek at dirt rd crossing, between the High Rocks and Box Hall Flat, ca. 2 air mi E of Oregon City on Table Mt, 8 mi N of Oroville. 305 Comment
  JEPS94119  Cerastium glomeratum Lowell Ahart 1998-5-30 7962 Butte ca. 7 mi. (air) n. Oroville (ca. 200 yards n.w. of the lone oak tree, n.w. of the cow chute along Cherokee Rd.) 403 Comment
  RSA590212  Cerastium glomeratum Michael A. Vincent, Robert M. Rhode, Jim Snowden 1996-3-29 7231 Butte North Table Mountain, W of Cherokee Rd. N of Oroville. S side of Beatson Hollow, from center to west edge of butte. Comment
  SEINET10452399  Cercis occidentalis Mary Susan Taylor 1975-4-25 Taylor 502 Butte Ca. 20 mi NE of Chico on Cohasset Rd, ca. 0.5 mi N of the horse trough. Comment
  CHSC115455  Cercocarpus betuloides M. Sutton; C. Yasuda, S. Luse 2013-3-5 6 Butte Ten mile house trail. 391 Comment
  CHSC101091  Cercocarpus betuloides var. betuloides Lowell Ahart; John Dittes 2009-3-20 15518 Butte On the south side of the Guardian Rock Trail, about 100 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
  CHSC61314  Chamaesyce maculata Lowell Ahart 1993-7-22 7080 Butte Along Fall River, west of the bridge across Fall River, about 6 (air) miles north-east of Feather Falls. 1036 Comment
  CDA35256  Chamaesyce ocellata T. C. Fuller 1962-5-17 8711 Butte Highway 99E to Vina, 12.3 miles northwest of Chico. 0 Comment
  UC1586634  Chamaesyce serpillifolia subsp. serpillifolia Vernon Oswald and Lowell Ahart 1990-10-11 4457 Butte 4 mi S of Jarbo Gap (Lake Oroville, Dark Canyon Arm of) 265 Comment
  UC426921  Chamerion angustifolium subsp. circumvagum E. B. Copeland 1930-7-21 428 Butte Jonesville 1600 Comment
  SEINET10470286  Cheilanthes covillei Lowell Ahart 1983-5-28 Ahart 4024 Butte Along trail to Feather Falls, ca. 5 mi n of the town of Feather Falls. Yellow Pine Forest; 600 m. 600 Comment
  CHSC44612  Cheilanthes gracillima Vernon Oswald 1985-4-29 1733 Butte Big Bald Rock. Comment
  CHSC78230  Cheilanthes gracillima Lowell Ahart 2000-6-27 8518 Butte Around large granite rocks, Big Bald Rock, about 3 miles (air) east of madrone Lake, about 12 miles (air) northeast of Oroville. 993 Comment
  UC1609401  Cheilanthes gracillima Lowell Ahart 1993-6-26 7039 Butte ca 1 air mi nw Lost Creek Reservoir Dam; Jackass Flat, Mooreville Ridge 1158 Comment
  JEPS102592  Chenopodium ambrosioides var. suffruticosum Lowell Ahart 2001-10-10 9413 Butte On the north side of Gridley Road, about 100 yards SE of the bridge across the Feather River, about 3 1/2 miles (air) east of Gridley. 27 Comment
  SEINET10479078  Chenopodium pumilio Lowell Ahart 1985-10-12 Ahart 5203 Butte At the end of Nelson Bar Road, about 1 mile south of Kunkle Reservoir, about 3 miles south of Paradise. Comment
  CHSC102985  Chenopodium strictum var. glaucophyllum Lowell Ahart 2009-8-13 16281 Butte At the south end of the cement barrier that controls the waster flow into Mud Creek, the north part of the diversion structure that controls Mud Creek diversion and Lindo Channel, northeast of Hooker Oak, Upper Bidwell Park, Chico. 68 Comment
  HSC100729  Chenopodium strictum var. glaucophyllum Lowell Ahart 2009-8-13 16281 Butte NE of Hooker Oak, Upper Bidwell Park, Chico, S end of cement barrier that controls water flow into Mud Creek. 69 Comment
  CHSC33973  Chimaphila menziesii M. S. Taylor 1981-5-13 3704 Butte Jct. of 23N15.5, 22N66X and 22N40X, ca. 2 air mi s of Four Trees Rd, ca. 1 air mile w of Elks Retreat on Oroville-Quincy Hwy. 1280 Comment
  POM174392  Chimaphila menziesii H. F. Copeland 1928-8-14 1020 Butte Jonesville. Comment
  CHSC46394  Chimaphila umbellata Lowell Ahart 1989-5-29 6310 Butte On the south side of the gravel road to the Forbestown Reservoir, about 1 mile north-east of Forbestown Road, about 2-1/2 miles north-east of Forbestown. 822 Comment
  CHSC93990  Chimaphila umbellata R. D. Fischer 2004-6-20 778 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 the western woods above the pond. 1371 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
  JEPS106015  Chloris virgata Lowell Ahart 2004-6-28 11147 Butte On the east side of Lone Tree Road, about 1/2 mile north of Palermo Road, about 1 1/2 miles (air) northwest of Palermo, about 5 miles (air) south of Oroville 43 Comment
  CAS-BOT-BC498628  Chlorogalum angustifolium A. A. Heller 1914-5-14 11400 Butte Near Clear Creek below the Quercus Douglasii belt; Marysville Buttes Comment
  HSC38028  Chlorogalum angustifolium Thomas W. Nelson, Jane P. Nelson 1976-5-10 2494 Butte Beside SR 191 just N of its junction with SR 70 Comment
  UC142064  Chlorogalum angustifolium Mrs. R. M. Austin May 1899 737 Butte Comment
  CAS-BOT-BC498818  Chlorogalum pomeridianum Lowell Ahart 1983-6-21 4082 Butte Along Bloomer Hill Road. Found growing on dry red rocky soil along Bloomer Hill Road, about 3/4 mile west of the Oroville Quincy Highway, about 15 miles north-east of Oroville. 129 Comment
  CHSC84158  Chondrilla juncea Lowell Ahart 2003-6-30 10331 Butte Near the water pipe where it comes out of the mountain, on the north side of the Ponderosa Reservoir, about 2 miles (air) north of Forbestown. 481 Comment
  CHSC103750  Chorizanthe polygonoides var. polygonoides Lowell Ahart 2010-5-16 16705 Butte About 100 yards west of the fence, about 1/2 mile southeast of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 381 Comment
  CAS-BOT-BC247538  Chorizanthe stellulata David D. Keck 1933-5-31 2413 Butte 4.3 miles north of Chico city limits, on Richardson Springs road Comment
  CAS-BOT-BC36372  Chrysolepis sempervirens A. A. Heller 1914-7-23 11598 Butte Chico meadows 1219 Comment
  POM219008  Chrysolepis sempervirens E. B. Copeland 1931-7-27 625 Butte Jonesville. 1650 Comment
  UC1562013  Cicendia quadrangularis Barbara Ertter with Lowell Ahart 1986-4-13 5900 Butte ca 2 air mi nne Honcut (between Oroville and Marysville, Peter Ahart Ranch) 30 Comment
  RSA754387  Cichorium intybus L. Ahart 2009-7-3 15985 Butte E side of the road, 30 yards SE of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 100 yards E of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  UC1594561  Cinna latifolia Lowell Ahart 1992-7-26 6836 Butte small stream about 1/2 mi n Carr Mine (s side of Coon Hollow, about 2 (air) mi s of Snow Mountain); s side Coon Hollow 1737 Comment
  CHSC46201  Circaea alpina subsp. pacifica L. P. Janeway 1988-7-2 2960 Butte Along road to French Cr 1.2 mi S of Coyote Gap. Above road. 1127 Comment
  SEINET10453141  Circaea alpina subsp. pacifica Lowell Ahart, Peter Ahart 1985-7-9 Ahart 5116 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
  UC328923  Circaea alpina subsp. pacifica unknown Butte near Camp Colby Comment
  SEINET5507008 Image available Cirsium andersonii E. B. Copeland 1931-7-27 n.s. Butte Jonesville 1650 Comment
  CAS-BOT-BC278076  Cirsium douglasii var. breweri E. B. Copeland 1930-7-28 s.n. Butte Jonesville 1600 Comment
  SEINET10473708  Cirsium proteanum Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4075 Butte T20N R5E sec 6. Along Bloomer Hill Rd, ca. 3/4 mi w of Oroville-Quincy Hwy, ca. 15 mi ne of Oroville. Foothill Woodland; 425 m. 425 Comment
  CDA20150  Cirsium vulgare B. Smith August 1996 s.n. Butte Plumas National Forest; 0.5 mi E of Lumpkin. 1173 Comment
  RSA774139  Cistanthe monosperma L. Ahart 2010-9-28 17251 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
  CHSC3521  Clarkia arcuata John Francis 1966-4-16 118 Butte On hillside S. of covered bridge (Honey Run). Comment
  CAS-BOT-BC165940  Clarkia gracilis Lowell Ahart 1975-5-12 s.n. Butte Peter Ahart Ranch, Honcut Comment
  CAS-BOT-BC164520  Clarkia gracilis subsp. albicaulis Helen Edwards 1917-6-1 s.n. Butte De Sabla Comment
  CAS-BOT-BC164521  Clarkia gracilis subsp. albicaulis Mrs. C. C. Bruce 1892-5-1 1954 Butte Little Chico Comment
  SEINET516158  Clarkia gracilis subsp. albicaulis Vernon H. Oswald 1998-6-24 9238 Butte Hwy. 32 at Crown Pt. Rd. between Chico and Forest Ranch. 573 Comment
  SEINET9349101  Clarkia mildrediae Unknown 1996-7-9 13174 Butte Plumas National Forest Comment
  SEINET10939935  Clarkia mildrediae Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4745 Butte About 1 1/2 mile south-east of Bald Mountain, 3/4 mile west of Oak Point, about 4 miles north-east of Stirling City. Comment
  CAS-BOT-BC172533  Clarkia purpurea subsp. purpurea Mrs. H. C. Cantelow 1940-5-10 s.n. Butte 8 1/2 miles S.E. of Oroville, Hy. 24. Comment
  CAS-BOT-BC163645  Clarkia purpurea subsp. quadrivulnera Lowell Ahart 1983-6-12 4036 Butte About 1 mile south of Crystal Hill, near Oregon Gulch, near Lake Oroville, about 7 miles south-west of Feather Falls 425 Comment
  RSA21171  Clarkia purpurea subsp. quadrivulnera Carl B. Wolf 1937-5-14 8662 Butte Sierra Nevada Foothills, 2.5 miles SE of Oroville on road to Wyandotte. 91 Comment
  SEINET7073009  Clarkia purpurea subsp. quadrivulnera A. G. Vestal 1963-5-31 s.n. Butte About 8.2 miles north-northwest of Oroville on Route 149. UTM Zone 10, 614599mE, 4384406mN. Coordinate datum: NAD27. Comment
  UCD80466  Clarkia purpurea subsp. quadrivulnera CNPS SN Foothill Team 2005-5-5 SNFN 0157 c Butte City of Chico, Upper Bidwell Park, about 200 m northwest of the road running through the park, about 1/2 mile up the road from Horseshoe Lake. 111 Comment
  CAS-BOT-BC164783  Clarkia rhomboidea Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  CHSC37429  Clarkia rhomboidea R. Schlising; K. Tarp 1982-7-28 4352 Butte E of Pulga and SW of Coyote Gap Station, on Big Bar Mountain Road. On roadside bank. 1249 Comment
  CHSC59115  Clarkia rhomboidea L. P. Janeway 1991-6-1 3980 Butte Southwest-facing cut-bank of Dark Canyon Road 1.0 mi south of Big Bend Road/Parkhill. 512 Comment
  CHSC70750  Clarkia rhomboidea L. P. Janeway 1993-6-23 4399 Butte Along Rd 22N49 about 0.1 mi west of Oroville-Quincy Hwy, 1.0 mi southwest of Junction House. 1005 Comment
  CHSC81385  Clarkia rhomboidea Samantha Hillaire 2001-5-16 302 Butte Vicinity of Ponderosa Way, about 0.3 mi southeast of Big Chico Creek; UTM 10 611784E 4415729N. On a steep roadcut of a little-used dirt road, on a SW exposure. 353 Comment
  UC1143245  Clarkia rhomboidea H. and M. Lewis, F. Vasek 1950-6-30 759 Butte 1.4 mi s Arch Rock (Hwy. 24); Feather River Comment
  UCD104989  Clarkia rhomboidea L. P. Janeway 1993-6-10 4378 Butte Southwest side of Watson Ridge about 1.5 miles E of Bald Rock Dome. 822 Comment
  CAS-BOT-BC164800  Clarkia rhomboidea L. P. Janeway 1987-5-7 2029 Butte Along Dark Canyon Road 1.0 mi south of Big Band Road/Parkhill 512 Comment
  CAS-BOT-BC164801  Clarkia rhomboidea Mrs. H. C. Cantelow 1941-5-25 s.n. Butte West branch of Feather River at junction with road to Las Plumas Comment
  SEINET10841118  Clarkia rhomboidea Lowell Ahart 1984-6-8 Ahart 4663 Butte At the Ponderosa Dam, ca. 2 mi NW of Forbestown; Yellow Pine Forest; 370 m. 370 Comment
  CAS-BOT-BC165439  Clarkia unguiculata L. P. Janeway 1991-6-1 3986 Butte Northwest-facing cut-bank of Dark Canyon Road 3.35 mi south of Big Bend Road/Parkhill 304 Comment
  CHSC40613  Claytonia exigua subsp. exigua Ahart; Jokerst 1985-3-24 4859 Butte Found growing on damp bare broken disturbed serpentine west of Lunt Road, about 1/2 mile north of the intersection of Lunt Road and Highway 70, north of Yankee Hill. 550 Comment
  CHSC41312  Claytonia palustris S. C. Morey 1983-7-22 548 Butte Cherry Hill Meadow On n side of Humboldt Road, ca. 3.2 mi e of Butte Meadows. 1414 Comment
  CHSC31195  Claytonia parviflora subsp. parviflora M. S. Taylor 1980-3-19 2392 Butte Macabes Creek Canyon, in very wet shady areas under tress, in moss over rocks by the creek, ca. 100 ft e of Lumpkin Rd, ca. 2.5 mi ne of its jct with Forbestown Rd, ca. 18 mi ne of Oroville. 396 Comment
  CHSC56069  Claytonia parviflora subsp. parviflora L. P. Janeway 1988-7-2 2961 Butte Along road to French Creek, 1.2 mi south of Coyote Gap. Shady seepy area above the road. 1127 Comment
  RSA754940  Claytonia parviflora subsp. parviflora L. Ahart 2008-5-8 14718 Butte Lake Oroville, about 250-300 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 air miles east of Oroville. 260 Comment
  CHSC64126  Claytonia perfoliata Michael Deal 1992-4-19 1 Butte Private property, 449 Castle Drive, w of Laurel St., Paradise. 609 Comment
  CHSC103969  Claytonia perfoliata subsp. perfoliata Lowell Ahart 2010-5-7 16614 Butte Below rim, 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
  CHSC3286  Claytonia perfoliata subsp. perfoliata M. L. Hillier 1966-3-6 Butte 4 blocks w. of railroad tracks on W. 3rd St. in the almond orchard behind Craig Hall. Chico. Comment
  SEINET10572740  Claytonia rubra Lowell Ahart, James D. Jokerst 1985-3-24 Ahart 4861 Butte West of Lunt Road, about 1/2 mile north of the inter- section of Lunt Road and Highway 70, north of Yankee Hill. Comment
  CHSC24136  Claytonia rubra subsp. rubra D. E. Hale 1976-4-4 3 Butte Ca. .75 km from n side of Vilas Rd, ca. 1.6 km ene from Cohasset Hwy-- Vilas Rd intersection, 24 km ne of Chico. 835 Comment
  CHSC56070  Claytonia rubra subsp. rubra L. P. Janeway 1988-6-14 2774 Butte Ewalt Camp; edge of open dry meadow along West Branch Butte Creek 2.0 mi east from Hwy 32 by dirt road. 922 Comment
  CHSC78090  Clematis lasiantha Caleb E. Casey 1999-4-9 Butte South rim trail, Upper Bidwell Park. On trail where power lines cross. 106 Comment
  CHSC44237  Collinsia parviflora V. Oswald; L. Ahart 1988-7-13 3573 Butte Road to High Lakes e of Philbrook Reservoir. 1859 Comment
  POM252814  Collinsia sparsiflora var. bruceae A. A. Heller 1938-4-23 15053 Butte On Highway #24 near the summit above the junction with the Yankee Hill road. 610 Comment
  SEINET10964453  Collinsia sparsiflora var. bruceae Lowell Ahart 1991-4-8 Ahart 6643 Butte On a steep slope on the west side of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 2 and 3/4 miles east of Honcut, about 12 miles southeast of Oroville. Foothill Woodland. T17N R4E S11. 46 Comment
  CHSC38686  Collinsia sparsiflora var. collina Vernon Oswald 1983-3-19 193 Butte Upper Bidwell Park, Chico, 300 ft. n of Upper Park Rd. and 2.4 mi e of the power lines. 243 Comment
  CHSC38688  Collinsia tinctoria Vernon Oswald 1983-5-18 501 Butte Upper Bidwell Park, Chico, near Yahi Trail 1200 ft e of Parking Area N (Salmon Hole). 170 Comment
  CHSC44727  Collinsia tinctoria R. Banchero 1980-6-5 194 Butte Along Hwy 70 at its jct with the Feather River at the Rivers edge, ca 4.3 mi N of the jct of Pinkston Canyon Rd and Hwy 70. 487 Comment
  JEPS24250  Collinsia tinctoria Helen-Mar Beard 1960-6-20 Butte 150 yds upstream lower boundary sign of Plumas National Forest (along US Hwy 40-A, at base of grade from Jarbo Gap, not far from Big Bar); Feather River Canyon 426 Comment
  SFV10348  Collinsia tinctoria M. L. Vincent 1963-6-6 369 Butte Nelson Bar Road at PGE. 300 Comment
  UC600650  Collinsia torreyi var. wrightii H. F. Copeland 1931-6-11 Butte woods above Kirby Meadows (Jonesville); Jonesville Comment
  SEINET2440903  Collomia heterophylla R. M. McKee 1918-5-12 s.n. Butte Magalia. Comment
  CHSC38928  Colutea arborescens Vernon Oswald 1983-5-30 582 Butte Upper Bidwell Park, Chico, at the bridge over the diversion channel on Wildwood Ave. 82 Comment
  CHSC35963  Convolvulus arvensis M. S. Taylor 1982-5-22 4499 Butte Graylodge Waterfowl Refuge, at end of West Liberty Rd, ca. 12 mi sw of Gridley. 19 Comment
  CHSC5936  Convolvulus arvensis M. MacArthur 1968-6-17 192 Butte Chico State College campus. SE side PSA bld., near wall. 60 Comment
  CHSC33797  Corallorhiza maculata M. S. Taylor; L. Hanson, H. Phillips 1981-5-27 3804 Butte W side of Paradise lake, ca. half way between Butte Creek entrance to the north and dam to the south, ca. 50 ft up from lake edge, ca. 3 air mi n of Magalia. 792 Comment
  UC127773  Corallorhiza maculata Miss Kate Conger 1907-1 Butte Brush Creek Comment
  CHSC112539  Cordylanthus pilosus subsp. hansenii B. Castro 2012-10-18 1989 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 700 ft downstream (WSW) of its crossing under the Cohasset Hwy bridge. 56 Comment
  JEPS60488  Cordylanthus pilosus subsp. hansenii T. I. Chuang and L. R. Heckard 1969-8-20 6739 Butte 3.2 mi sw Nimshew (on Humbug Rd (w of Magalia)) 304 Comment
  RSA794969  Cordylanthus pilosus subsp. hansenii L. Ahart 2010-9-12 17150 Butte Just above the high water line of Lake Oroville, about 150 yards north of the South Fork of the Feather River, about 50 yards east of Sucker Creek, about 0.25 air miles northwest of the Ponderosa Dam. 243 Comment
  SBBG128102  Cordylanthus pilosus subsp. hansenii L. Ahart 2010-9-12 17150 Butte just above the high water line of Lake Oroville, ca. 150 yards N of the S Fork of the Feather River, ca. 50 yards E of Sucker Crk, ca. 0.25 mi NW of the Ponderosa Dam 243 Comment
  CHSC65539  Cordylanthus tenuis subsp. tenuis L. P. Janeway 1995-7-28 4880 Butte South side of Watson Ridge 1.2 mi south of Pompys Point; just above Road 21N25A. 1152 Comment
  CHSC80577  Coriandrum sativum Lowell Ahart 2001-6-13 8815 Butte Center of the dirt road east of the large pump, on the south side of Evans-Reimer Road, about 1 mile east of Pennington Road, Gray Lodge Waterfowl Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  UCD117250  Cornus nuttallii P. Thompson 1996-4-26 38 Butte Hwy 70. Belden. Along the main street through Belden. 1000 Comment
  CHSC33765  Cornus sericea subsp. sericea R. A. Schlising; R. Banchero, J. Fuller 1981-6-28 4121 Butte E of Stirling City near E border of county. S and E of andesitic Table Mountain in Little Kimshew Creek. 1584 Comment
  UCD169337  Coronilla varia Lowell Ahart 2004-6-22 11121 Butte About 5 miles (air) southwest of Stirling City, about 2 1/2 miles (air) southeast of Forest Ranch, about 1 mile southeast of the bridge across Butte Creek, on the west side of Doe Mill Road. 713 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
  CHSC43248  Corydalis caseana subsp. caseana Lowell Ahart; Tim Devine, Vern Oswald 1987-10-17 5916 Butte Along the East Fork of Last Chance Creek, about 1/2 mile north-west of Jones Meadow. 1676 Comment
  CHSC29110  Corylus cornuta var. californica M. S. Taylor 1980-4-27 2555 Butte Along Middle Butte Creek off of Little Butte Creek. Ca. 1 1/2 mi se of Nimshew. 609 Comment
  SEINET10482970  Crassula Lowell Ahart, Peter Ahart 1985-11-5 Ahart 5227 Butte Lake Oroville, about 1/2 mile west of the Ponderosa Dam, near where Sucker Creek flows into the South Fork of the Feather River. Comment
  CHSC35689  Crassula tillaea J. D. Jokerst 1982-4-12 1522 Butte W side hwy 149, 3/10 mi N of hwy 70. Comment
  CHSC90954  Crassula tillaea Lowell Ahart 2005-4-14 11726 Butte About 20 feet east of the railroad tracks, north of Spruce Street, Gridley. 28 Comment
  JEPS103517  Crassula tillaea Lowell Ahart 2002-4-10 9479 Butte Along the edge of the gravel roads, E of Parking Lot 10, Gray Lodge State Wildlife Management Area, ca 4 miles (air) SW of Gridley. 22 Comment
  CAS-BOT-BC427953  Crassula tillaea L. P. Janeway 1993-5-2 4342 Butte Roadside of Yankee Hill Road at Hwy 70, across Hwy 70 from Serpentine Point. 487 Comment
  SEINET516424 Image available Crassula tillaea Lowell Ahart 1974-1 381 Butte Large size plants, growing on dry to damp sandy soil along North Honcut Creek, Peter Ahart Ranch, about 1 mi N and 2 1/2 mi E of Honcut, about 12 mi S of Oroville. 43 Comment
  CAS-BOT-BC376471  Crepis pleurocarpa Lowell Ahart 1985-6-30 5087 Butte 100 yards south of the road to the Forbestown Res., near the Forbestown Ditch, about 2 1/2 miles north-east of Forbestown 883 Comment
  CHSC116010  Croton setiger Lowell Ahart 2015-10-9 20543 Butte West edge of Bull Hill Road, about 3/4 mile northwest of the intersection of Bull Hill Road, Skyway, and Humbug Road, about 4 miles (air) north of Inskip. 1697 Comment
  CHSC116134  Croton setiger Lowell Ahart 2015-11-7 20620 Butte Strand of Lake Oroville, on the east side of the old highway Alternate 40, about 1/4 mile south of the end of Alternate 40, Dark Canyon, about 4 miles (air) south of Highway 70, about 8 miles (air) southeast of Paradise. 236 Comment
  CHSC31692  Croton setiger L. Ahart 1972-6-21 118 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC62453  Croton setiger L. P. Janeway 1993-9-7 4584 Butte Plumas National Forest. About 300 ft west of the south end of Ponderosa Dam. Along the edge of the dirt road. 298 Comment
  CHSC21785  Crucianella angustifolia Robert A. Schlising 1974-5-19 3131 Butte 3 mi S of jct Neal Road and Skyway in Paradise. Comment
  JEPS104099  Crucianella angustifolia Lowell Ahart 2003-5-26 10214 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
  UCD80865  Crucianella angustifolia Robert E. Preston 2007-6-7 2557 Butte North Table Mountain, along Cherokee Rd, 0.65 mi N of Oregon Gulch Rd. 417 Comment
  CHSC113533  Crypsis alopecuroides Lowell Ahart 2014-9-23 19873 Butte Near a small drainage, on the northeast part of Horseshoe Lake, about 100 yards northeast of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. 88 Comment
  RSA0106564  Crypsis alopecuroides Lowell Ahart 2014-9-23 19873 Butte Northeast part of Horseshoe Lake, about 100 yards northeast of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. 89 Comment
  HSC11252  Crypsis vaginiflora C. V. Piper 1921-5-30 838 Butte Blavo, near Chico Comment
  RSA0119043  Cryptantha affinis Butte On the south side of Philbrook Road, about 1 miles (air) west of Philbrook Reservoir. 1665 Comment
  UC1609327  Cryptantha affinis Lowell Ahart 1993-6-26 7018 Butte about 1 mi w Lost Creek Reservoir (e side of the dirt road) 1188 Comment
  SEINET10497277  Cryptantha flaccida Lowell Ahart 1985-5-10 Ahart 4951 Butte North of east branch of Potter Ravine, about 2 1/4 miles north of Oroville Dam. Comment
  CHSC150  Cryptantha intermedia M. Diven 1930-5-6 Butte Chico. 57 Comment
  CHSC90816  Cryptantha intermedia Lowell Ahart 2005-5-2 11755 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
  JEPS26228  Cryptantha intermedia R. F. Hoover 1937-5-18 2234 Butte 3 mi n Chico Comment
  UC708010  Cryptantha intermedia McKee and Westover 1918-6-5 7 Butte Paradise 609 Comment
  UCD80136  Cryptantha intermedia CNPS SN Foothill Team 2006-5-23 SNNR 0789 a Butte BLM Parcels near Paradise. 520 Comment
  CHSC37212  Cryptantha milobakeri L. Ahart 1982-7-28 3712 Butte On the bottom of the water ditch, ca. 1/8 mi n of Pacific Mine, ca. 5 mi e of La Porte. 1700 Comment
  SBBG28777  Cryptantha milobakeri L. S. Rose 1939-6-7 39246 Butte N Fork of Feather River, 3 mi S of Pulga 609 Comment
  SEINET10497283  Cryptantha rostellata Lowell Ahart 1984-5-18 Ahart 4606 Butte T17N R4E. Peter Ahart Ranch, ca. 1.5 mi NE of Honcut, ca. 12 mi S of Oroville. Valley Grassland; 50 m. 50 Comment
  RSA718086  Cuscuta californica L. Ahart 2006-7-16 12959 Butte About 50 yards south of Humboldt Road, about 1 1/2 miles (air) southwest of Butte Meadows. 1436 Comment
  CHSC62449  Cuscuta californica var. breviflora B. Castro 1987-5-18 107 Butte Ca 9 mi e of Chico via Hwy 32 and 2 mi E on Altatina Drive. 438 Comment
  CHSC48360  Cuscuta californica var. californica V. Oswald 1988-5-25 3339 Butte Just nw of intersection of Pennington Rd. and Rutherford Rd. at Gray Lodge Waterfowl Management Area. 21 Comment
  CHSC31026  Cuscuta howelliana M. S. Taylor 1979-5-6 2008 Butte Peter Ahart Ranch, Honcut. 50 Comment
  SEINET10837188  Cuscuta howelliana Mary Susan Taylor 1979-5-6 Taylor 2008 Butte Peter & Lowel Ahart Ranch, Honcut; Valley Grassland. Comment
  CHSC107581  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
  CHSC88163  Cymopterus terebinthinus var. californicus Lowell Ahart 2004-8-2 11334 Butte On both sides of the dirt County Road, between the Sky High Mine and Dresser Camp, about 2 miles (air) southeast of the Philbrook Reservoir Dam, about 7 miles (air) southeast of Butte Meadows. 1912 Comment
  SFV3108  Cynoglossum grande M. L. Vincent 1961-3-30 23 Butte Honeyrun Road, 0.5 miles west of Paradise. 610 Comment
  UC600449  Cynoglossum occidentale E. B. Copeland July, 1930 Butte Jonesville 1550 Comment
  JEPS124403  Cynosurus echinatus Lowell Ahart 2015-6-16 20226 Butte About 4 miles (by road) northwest of Fall River Bridge, about 5 1/2 miles (air) northwest of Camp 18, about 9 miles (air) northeast of Feather Falls. Comment
  CAS-BOT-BC114736  Cyperus difformis Lowell Ahart 1974-11-9 s.n. Butte In a rice field, Peter Ahart Ranch, Honcut. 45 Comment
  CHSC83007  Cyperus difformis Lowell Ahart 2002-9-7 9930 Butte On the east side of Cherokee Road, north of the Thermalito Diversion Canal, on the west side of the water purification pond, about 1 mile north of Oroville. 130 Comment
  UC1100546  Cyperus difformis Herbert L. Mason 1945-9-19 12737 Butte n.w. Pennington (Gray Lodge Game Refuge); Gray Lodge Game Refuge Comment
  CHSC38900  Cyperus eragrostis Vernon Oswald 1983-6-11 665 Butte Upper Bidwell Park, Chico, in Lindo Channel between Five Mile Recreation Area and the flood-control gates. 79 Comment
  CHSC4293  Cyperus eragrostis M. M. Gregg 1966-5-27 182 Butte CSC Campus: in lawn, across from the Dick Lewis Memorial Barbecue Pit. Which is found behind the dining hall. Chico. Comment
  CHSC84153  Cyperus eragrostis Lowell Ahart 2003-6-30 10329 Butte Near the small stream, on the west side of Ponderosa Way, about 1 1/2 miles (by road) southwest of the Ponderosa Dam, about 2 miles (air) northwest of Forbestown. 404 Comment
  JEPS108952  Cyperus eragrostis Lowell Ahart 2006-9-11 13298 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
  UCSC000115  Cyperus eragrostis H. S. Yates 1936-8-19 6121 Butte 10 miles south of Durham - Chico 30 Comment
  CHSC68390  Cyperus erythrorhizos L. P. Janeway; C. A. Janeway 1986-10-4 1907 Butte Gravel bar along Butte Creek about 2 1/2 mi east of The Skyway. 45 Comment
  JEPS115040  Cyperus erythrorhizos Lowell Ahart 2007-11-3 14555 Butte Below the high water line of Lake Oroville, about 3/4 mile east of the Power House below Kunckle Reservoir, about 1 1/4 miles north of the Lime Saddle Campground, about 5 miles (air) southeast of Paradise 259 Comment
  CHSC45144  Cyperus flavescens Lowell Ahart 1975-7-19 901 Butte Along the edges of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  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
  RSA795668  Cyperus iria L. Ahart 2012-8-6 18415 Butte West side of Richvale South Highway, about 1.5 miles south of Richvale. 31 Comment
  CHSC110390  Cyperus niger Lowell Ahart 2012-9-28 18469 Butte Gravel bar in the middle of Big Chico Creek, about 30 yards east of the freeway, Lower Bidwell Park, Chico. 65 Comment
  CAS-BOT-BC113843  Cyperus niger var. capitatus Verne Grant; Herbert L. Mason 1946-9-27 13141 Butte Three miles west of Biggs. Comment
  CAS-BOT-BC114080  Cyperus squarrosus A. A. Heller 1917-7-28 1817 Butte Butte Meadows. 1280 Comment
  CAS-BOT-BC114081  Cyperus squarrosus A. A. Heller 1917-7-28 1817 Butte Butte Meadows. 1280 Comment
  CHSC42935  Cyperus squarrosus Lowell Ahart 1987-7-3 5774 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
  JEPS122260  Cyperus squarrosus Lowell Ahart 2014-9-23 19871 Butte On the northeast part of Horseshoe Lake, about 100 yards northeast of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. Comment
  CHSC34197  Cyperus strigosus J. D. Jokerst; L. Ahart 1981-9-26 1494 Butte Swale ca 100 m E of Sacramento River at the Bidwell River State Park (Chico Landing) ca 5.0 mi W of Chico. Comment
  CAS-BOT-BC68045  Cystopteris fragilis E. B. Copeland 1931-6-10 602 Butte Jonesville - Butte Creek 1550 Comment
  CHSC33976  Cystopteris fragilis M. S. Taylor 1981-5-13 3694 Butte On e side of 23N15.5 ca. 1 mi s of its jct with Four Trees Rd, ca. 8 air mi e of Pulga and 0.5 mi w of Orovill-Quincy Hwy. 1371 Comment
  JEPS113229  Cystopteris fragilis Lowell Ahart 2007-5-22 13919 Butte About 1/8 mile south of Bald Rock Dome, on the west side of Dome Trail, trail leads to the Middle Fork of the Feather River, about 200 yards northeast of trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Big Bald Rock 844 Comment
  UC725452  Damasonium californicum A. A. Heller 1940-5-13 15617 Butte field 3 mi. w. Chico Comment
  CAS-BOT-BC189851  Danthonia californica Lowell Ahart 1983-8-16 4291 Butte Sierra Nevada. One mile east of Butte Meadows. Along a small stream that flows into Butte Creek. 1450 Comment
  CHSC110239  Danthonia californica L. P. Janeway 2012-6-2 10832 Butte Northern High Sierra Nevada. Plumas National Forest; eastern slope of Bloomer Hill, 1.0 air km east of the top. 701 Comment
  UCD169810  Danthonia californica Lowell Ahart 2010-9-21 17230 Butte About 1 mile (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. On the north side of a poor dirt road. 1899 Comment
  CHSC68914  Danthonia californica var. americana Lowell Ahart 1997-7-11 7755 Butte Along a stream, north of the dirt road, southeast of Cold Creek, about 2 miles (air) southwest of Bald Mountain, about 9 miles by road from Stirling City, or about 2 miles (air) northeast of Stirling City. 1219 Comment
  CHSC3609  Daphne odora R. Jaegel 1966-2-19 14 Butte Collected 6 blocks north of Bidwell Mansion; Chico. Comment
  CHSC29002  Darmera peltata M. S. Taylor 1980-3-19 2387 Butte In Macabes Creek, in Macabes Creek Canyon, ca. 100 ft e of Lumpkin Rd, ca. 2 1/2 mi n of its jct with Forbestown Rd, ca. 18 mi ne of Oroville. 396 Comment
  CHSC76402  Datisca glomerata Lowell Ahart; Vernon H. Oswald 1999-10-3 8289 Butte 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
  CHSC49433  Datura ferox Vernon Oswald 1987-8-13 3210 Butte Portion of Rancho Bosquejo. Feenstra's Riverview Orchard located at the w end of Cana Hwy between the s half of Cana Lake (on Dicus Slough) and the Sacramento River. In a bean field. 48 Comment
  SEINET10546586  Datura meteloides Mary Susan Taylor 1974-10-11 Taylor 329 Butte Along Sacramento River, in vicinity of the washout on River Road, ca. 10 mi W of Chico. Riparian Woodland. 61 Comment
  CHSC23416  Datura wrightii K. Stern 1970-1-1 Butte S. end of Eddy Lake, Rancho Llano Seco. Comment
  CHSC40616  Datura wrightii Lowell Ahart 1985-9-14 5167 Butte On the east side of a building, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 33 Comment
  SEINET10906787  Daucus pusillus Mary Susan Taylor 1979-6-12 Taylor 2304 Butte Magalia serpentine area down to Feather River. With J.D. Jokerst & L. Ahart. 671 Comment
  CHSC48690  Delphinium gracilentum Vernon Oswald 1984-4-9 1130 Butte Feather Falls Trail, 1.8 trail mi. from the trail head at the end of Bryant Ravine Rd. 502 Comment
  CHSC78159  Delphinium hansenii subsp. hansenii Lowell Ahart 2000-5-31 8431 Butte Near the north shore line of Lake Oroville, about 50 yards east of the boat launch ramp, southeast of the Kunkle Power House, about 3 miles southeast of Paradise. 286 Comment
  UC1080379  Delphinium hansenii subsp. hansenii E. K. Balls 1957-5-22 22501 Butte Hwy U.S. 40, 8.6 mi NE of Oroville, Foothill Woodland Plant Community 91 Comment
  CAS-BOT-BC10105  Delphinium hesperium subsp. pallescens Mrs. J. H. Morrison 1932-5-1 s.n. Butte Durham Comment
  CHSC84134  Delphinium hesperium subsp. pallescens Lowell Ahart 2003-5-14 10174 Butte About 150 yards west of the dredge piles along North Honcut Creek, about 2 1/2 miles north and 2 1/2 miles east of Honcut, about 12 miles southeast of Oroville. 60 Comment
  UC600483  Delphinium nuttallianum H. F. Copeland 1932-6-27 Butte Goverment Trail on point above hotel; Jonesville Comment
  CAS-BOT-BC121614  Delphinium patens subsp. patens A. A. Heller 1913-4-5 10706 Butte North side of Feather River above Oroville Comment
  CHSC94063  Delphinium patens subsp. patens R. D. Fischer 2005-6-6 740 Butte Sierra Nevada foothills, off Hwy. 32, about 4 miles east of Chico at the parking area for 10 Mile House Road trail in Bidwell Park. Collection made on a grassy ridge top near parking area. 464 Comment
  CHSC13849  Delphinium variegatum subsp. variegatum P. Collinsworth 1974-3-26 9 Butte Along roadside off Hwy. 32 ca. .5 mi. E of Chico. Comment
  CAS-BOT-BC82875  Dendromecon rigida Mrs. J. H. Morrison 1932-4-17 s.n. Butte Durham. Comment
  JEPS114178  Dendromecon rigida L. P. Janeway 2007-5-6 8974 Butte Northern High Sierra Nevada. Ridge top along a side road north off the road from Sawmill Peak to Flea Valley, 1.8 air km northeast of Sawmill Peak. Comment
  UCD95265  Dendromecon rigida B. F. Smith 1970-8-5 97 Butte 2 miles north of Concow Reservoir, Lassen National Forest. 807 Comment
  JEPS94300  Deschampsia cespitosa subsp. cespitosa Lowell Ahart 1997-8-1 7770 Butte about 8 air mi ne of Stirling City (about 1/4 mi e of Table Mountain, on bottom of Little Kimshew Creek, Snow Meadow); Snow Meadow, Little Kimshew Creek 1524 Comment
  SEINET10933470  Deschampsia elongata A. Arthur Heller 1917-7-26 Heller 12846 Butte Open places in the yellow pine forest, Butte Meadows. Douglas fir and incense cedar are also plentiful. Common shrubs are Ceanothus cordulatus and Uva-ursi. 1402 Comment
  UC1362277  Dicentra formosa H. Wurlitzer 1965-4-6 Butte ca 2 mi s Lake Philbrook (0.5 mi e of Forest Service Road 25N17, on n side of w branch of Fish Creek (Forest Service Road 25N08)) Comment
  CAS-BOT-BC209181  Dichanthelium acuminatum subsp. acuminatum M. S. Taylor 1978-7-21 1839 Butte Big Bald Rock, ca. 2 mi. e of Lake Madrone 997 Comment
  SEINET10508818  Dichanthelium lanuginosum Mary Susan Taylor 1979-10-12 Taylor 2244 Butte T23N R2E sec 25. Riparian Woodland, Big Chico Creek, at end of Upper Bidwell Park Road, ca. 10 mi NE of Chico. 244 Comment
  RSA333575  Dichelostemma capitatum subsp. capitatum Craig Martz, Richard F. Sannar 1982-3-16 24 Butte Along State Route 70, 1 mile N of intersection with Palermo Road, S of Oroville. 150 Comment
  SD6360  Dichelostemma capitatum subsp. capitatum Mrs. R. M. Austin 1883-1 Butte No further locality information given on label. Comment
  UCD139200  Dichelostemma capitatum subsp. capitatum L. Ahart 1977-3-28 1229 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CDA13865  Dichelostemma multiflorum G. F. Hrusa, T. D. Wilfred 1997-5-7 13723 Butte Sierra Nevada; SSE slope above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. Comment
  CHSC117596  Dichelostemma multiflorum L. P. Janeway 2016-6-2 12108 Butte Northern High Sierra Nevada. Plumas National Forest; Field Ridge Meadow; on the ridge between South Fork Feather River and Sucker Run; 1.5 air-km east-northeast of Ponderosa Reservoir. 872 Comment
  CHSC37709  Dichelostemma multiflorum M. S. Taylor 1980-4-27 2570 Butte N side of Humbug Rd, ca. 1/4 mi upstream from Honey Run Covered Bridge, ca. 7 mi. e of Chico. 121 Comment
  CHSC3815  Dichelostemma multiflorum L. E. Dunkel 1965-4-15 21 Butte Ca. 200 yards sw of Chico Rod and Gun Club building and ca. 600 yards nw of Municipal Golf Course building, Chico. 33 Comment
  SEINET12046810  Dichelostemma multiflorum Unknown 1978-1 7 Butte 1.5 mi NE of jct of US 99 & Skyway near Chico, ca 100 ft E of roadway 69 Comment
  SEINET12053819  Dichelostemma multiflorum L. S. Rose 1931-1 s.n. Butte Oroville Comment
  SEINET8476819  Dichelostemma volubile M. J. Williams, W. Roderick 1984-5-25 84- 21 -2 Butte 3.3 mi from Paradise on Honey Run Road. 168 Comment
  CHSC33903  Digitalis purpurea M. S. Taylor 1981-5-15 3742 Butte Both sides of rd 22N92 between its jct with 23N00.1 and West Branch French Creek, ca 1.5 air mi s of Coyote Gap, ca. 4 air mi e of Pulga on Feather River Hwy 70. 883 Comment
  CAS-BOT-BC153762  Diplacus angustatus Junea Kelley 1920-4-24 s.n. Butte Los Verjils Comment
  SEINET10570111  Diplacus grandiflorus Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4230 Butte T21N R6E ne sec 2. Ca. 1/4 mi w of Milsap Bar, ca. 25 mi ne of Oroville. Yellow Pine Forest; 500 m. 500 Comment
  CHSC33721  Diplacus kelloggii M. S. Taylor 1981-4-5 3485 Butte 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. 426 Comment
  CHSC44811  Diplacus kelloggii R. Banchero 1980-4-19 120 Butte Ca 0.4 mi directly SE of Feather Falls, Ca 4.2 mi N of the town of Feather Falls. 579 Comment
  CAS-BOT-BC153212  Diplacus kelloggii Lowell Ahart 1988-3-27 5944 Butte Along Poe Power House Road, about 1/2 mile north-west of the Poe Power House, about 1 1/2 miles south-east of Jarbo Gap 426 Comment
  SEINET215109  Diplacus kelloggii R. J. Planck 1963-1 28 Butte Ragdump Rd, 4 mi E of Stirling City log pond Comment
  CHSC63666  Diplacus layneae B. Castro; R. Zebell 1989-4-8 315 Butte Ca 3 mi S of Brush Creek, ca 0.3 mi E of Bald Rock Rd in decomposed granite, along New Bean Creek Rd ca 0.3 mi N of Little Bald Rock. 1005 Comment
  CAS-BOT-BC154030  Diplacus torreyi E. B. Copeland 1929-7-18 462 Butte Jonesville 1550 Comment
  CAS-BOT-BC154031  Diplacus torreyi Helen M. Edwards 1917-6-1 s.n. Butte De Sabla Comment
  CAS-BOT-BC154037  Diplacus torreyi A. A. Heller 1928-6-20 14664 Butte At Butte Meadows Comment
  CHSC44730  Diplacus torreyi R. Banchero 1980-6-16 233 Butte Along Humbolt Rd 0.5 mi W of the jct with the Skyway, ca 5 mi NE of the jct of Humbolt Rd and Hwy32. 1292 Comment
  CHSC44791  Diplacus torreyi R. Banchero 1980-7-7 284 Butte Along Quartz Creek Rd 0.2 mi N of its jct with County Line Rd, ca 2.4 mi S of the Fall River campground. 1164 Comment
  CAS-BOT-BC154039  Diplacus torreyi F. W. Peirson 1926-6-21 6778 Butte High ridge east of Butte Meadow, Humboldt Road Comment
  SEINET8393803  Diplacus torreyi A. A. Heller 1914-5-18 11414 Butte westslopes of the Sierra near Forest Ranch. 701 Comment
  HSC100766  Dittrichia graveolens Lowell Ahart 2007-10-30 14510 Butte W side of Hwy. 99, ~100 yd. N of Badger Creek Rd., ~500 yd. S of Richvale East Rd., 7 (air) mi. W of Oroville. 34 Comment
  CAS-BOT-BC136232  Dodecatheon alpinum H. F. Copeland 1929-6-10 1215 Butte Jonesville 1524 Comment
  JEPS43474  Dodecatheon hendersonii Joan O. Danielson 1966-4-6 14 Butte 2 mi s Cherokee (close to Oregon Gulch Road, Cherokee Road); s of Cherokee 609 Comment
  SBBG69653  Downingia bicornuta A. A. Heller 1927-5-3 14363 Butte 9 mi N of Chico Comment
  UC625530  Downingia cuspidata Frank W. Gould 1938-4-23 318 Butte a few mi n Gridley Comment
  UC765626  Downingia ornatissima var. ornatissima R. F. Hoover 1936-5-20 1151 Butte 10 mi sw Oroville Comment
  CAS-BOT-BC41344  Draba verna Gladys L. Smith 1976-4-8 s.n. Butte Table Mountain. Comment
  CAS-BOT-BC41348  Draba verna Lowell Ahart 1983-5-7 3967 Butte Honcut. Peter Ahart Ranch. About 1.5 miles north and 2.125 miles esat of Honcut. 50 Comment
  CDA6216  Draba verna var. aestivalis L. Ahart 2004-3-26 10705 Butte Hurleton Road, north of Forbestown Road, about 1/4 mile north of the Oak Grove Cemetery, about 2 miles southeast of Lake Wyandotte, about 10 miles east of Oroville. Comment
  CHSC101077  Draba verna var. aestivalis Lowell Ahart; John Dittes 2009-3-20 15503 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
  CHSC51866  Drosera rotundifolia L. P. Janeway 1987-7-5 2445 Butte 0.4 mi E on a spur rd from the Concow Rd, which is ... Field redacted by CHSC, contact the data manager for more information 1798 Comment
  UCD123983  Drosera rotundifolia Barry Rice 2011-7-6 BR 110705 Butte no exact location. 1460 Comment
  SEINET10448016  Drosera rotundifolia Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4756 Butte About 1/2 mile east of Bald Mountain, about 5 miles north-east of Stirling City. Comment
  CAS-BOT-BC527356  Drymocallis glandulosa var. reflexa Saichi Kawahara 1968-5-4 379 Butte James Ripley's property, Graham Road, Paradise 640 Comment
  CHSC113583  Dryopteris arguta Lowell Ahart 2014-8-24 19721 Butte On the south side of the road, about 150 yards southwest of the Forbestown Reservoir Dam, about 4 miles (air) northeast of Forbestown. 577 Comment
  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
  CHSC34239  Dryopteris arguta M. S. Taylor 1981-5-7 3638 Butte Along Sucker Creek, on e side of bridge, ca. 4 air mi sw of Feather Falls. 304 Comment
  CHSC84156  Dryopteris arguta Lowell Ahart 2003-6-30 10326 Butte Near the small stream, on the south side of Ponderosa Way, about 2 miles (by road) southwest of the Ponderosa Dam, about 2 miles (air) northwest of Forbestown. 490 Comment
  RSA715710  Dryopteris arguta L. Ahart 2005-1-20 11473 Butte West side of McCabe Creek, above the high water mark of Lake Oroville, about 1/4 mile soutj of the siphon. about 3 mi northeast of Hurleton, about 7 mi east of Oroville Dam. 305 Comment
  RSA754843  Dryopteris arguta L. Ahart 2009-8-20 16288 Butte Near rim edge, west edge of the open area west of the Guardian Rock Trail, about 30-100 yards north of Pine Trail, about 3/8 air mile southwest of the intersection of Ten Mile House Road and Highway 32., Upper Bidwell park, about 10 miles northeast of Chico. 399 Comment
  UCD80276  Dryopteris arguta CNPS SN Foothill Team 2005-4-6 SNFN 0097 a Butte CDFG North Table Mountain Wildlife Area, Coal Canyon. 377 Comment
  CHSC27259  Duchesnea indica P. Moyer 1972-3-11 123 Butte CSUC Campus. 200 ft. from n side of cafe annex bridge, w side off walkway. 60 Comment
  CHSC3431  Duchesnea indica Judy Potter 1966-3-23 Butte West of Physical Science bridge Chico State College. Comment
  CHSC3244  Dudleya cymosa Virginia Hagaman 1966-4-17 118 Butte 6.3 miles east of Chico State College, on the side of road in Upper Bidwell Park above Salmon Hole. Comment
  CHSC90565  Dudleya cymosa Diane Mastalir 1988-4-16 7 Butte Bidwell Park, Chico, 3.0 mi ne from Wildwood Ave. on Upper Park Rd., .5 mi nw. 121 Comment
  UCD149846  Dudleya cymosa Harry George 1967-4-24 s.n. Butte Table Mt. Comment
  UCD101932  Dudleya multicaulis R. Curtis 1995-5-27 8 Butte 10 m above Bear Hole, Big Chico Creek, approx. 6 miles south of Bidwell Road in Upper Bidwell Park. Comment
Read comments
Apr 7 2018
  CHSC38310  Dysphania ambrosioides Vernon Oswald 1983-9-17 1043 Butte Upper Bidwell Park, Chico, in Lindo Channel just upstream from the flood-control gates. 79 Comment
  CHSC112198  Dysphania botrys Lowell Ahart 2013-4-20 18561 Butte In corral at the barn, about 1/4 mile north of the Honcut Cemetary, about 3 1/4 mile (air) northeast of Honcut. 47 Comment
  CHSC94252  Dysphania botrys Lowell Ahart 2006-7-16 12961 Butte Near of the open mudflow area, on the south side (road edge) of Humboldt Road, about 1 1/2 miles (air) southwest of Butte Meadows. 1435 Comment
  JEPS120586  Dysphania botrys Lowell Ahart 2013-11-18 19273 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 2.5 air miles northeast of Hurleton. Comment
  JEPS124253  Dysphania botrys Lowell Ahart 2015-10-26 20594 Butte About 1 mile (air) southeast of Kunckle Reservoir, about 5 miles (air) southeast of Paradise. Comment
  RSA0118933  Dysphania botrys Lowell Ahart 2013-11-13 19232 Butte Below the high water line of Lake Oroville, along the sides of Sucker Creek, about 30 yards north of the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 244 Comment
  CDA42929  Echinochloa crus-galli L. Ahart 2012-9-28 18463 Butte On the north side of Big Chico Creek, about 150 yards east of the east end of Sycamore Pool in Big Chico Creek, Lower Bidwell Park, Chico. Comment
  CHSC112604  Echinochloa crus-galli Lowell Ahart 2013-9-20 19055 Butte Along a ditch, about 100 yards west of the railroad, about 400 yards south of the Rice Experiment Station buildings, about 2 miles southeast of Richvale. 30 Comment
  CHSC51287  Echinochloa crus-galli Lowell Ahart 1990-8-30 6604 Butte Along the edges of Canyon Creek, below the high water line of Lake Oroville, below the Canyon Creek Bridge across Lake Oroville. 228 Comment
  JEPS120038  Echinochloa crus-galli Lowell Ahart 2011-10-29 17727 Butte On the south side of Biggs Princeton Road, about 500 yards west of Riceton Highway, about 1 miles northwest of Biggs. Comment
  CDA1998  Echinochloa oryzicola J. Harroun 1958-9-16 1232 -58 Butte 0 Comment
  CHSC25340  Echinodorus berteroi M. P. Hayes 1977-8-13 33 Butte Butte College Campus, in northern-most pond between the branches of Clear Creek. 88 Comment
  JEPS98266  Echinodorus berteroi Lowell Ahart 2000-8-28 8666 Butte 6 air miles SW of Oroville (Oroville Wildlife Area, about 1/2 mi W of Oak Grove and Hwy 70, NW edge of large man made lake) 42 Comment
  POM219534  Echinodorus berteroi H. F. Copeland 547 Butte Nelson. Comment
  JEPS122236  Elatine ambigua Lowell Ahart 2014-9-28 19881 Butte Peter Ahart Ranch, about 2 1/4 miles north and 1/2 mile east of Honcut. Comment
  CHSC82227  Elatine rubella Lowell Ahart 2002-4-10 9478 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
  JEPS98305  Eleocharis acicularis Lowell Ahart 2000-10-2 8699 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
  JEPS98467  Eleocharis acicularis Lowell Ahart 2000-9-15 8690 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
  RSA767490  Eleocharis acicularis var. acicularis L. Ahart 2010-6-9 16776 Butte Bottom of vernal pool, 10 yards north of poor dirt road, about 100 yards east of the fence, about 150 yards east of where you park, east of Cherokee Road, North Table Mountain, about 4.5 air miles northeast of Oroville. 384 Comment
  CHSC68423  Eleocharis acicularis var. occidentalis L. P. Janeway; R. A. Schlising 1988-7-16 3026 Butte Large meadow at headwaters of Willow Creek. 1935 Comment
  CHSC46597  Eleocharis bella V. Oswald; L. Ahart 1989-7-21 3869 Butte Junction of Willow and Colby Creeks on the n side of Humboldt Rd, ca. 1 mi w of Jonesville. In a depression on the w side of Colby Creek. 1487 Comment
  RSA127039  Eleocharis bella H. S. Yates 1936-8-13 6102 Butte Butte Meadow. 1341 Comment
  CHSC68426  Eleocharis bolanderi L. P. Janeway 1989-5-17 3244 Butte Along edge of Lower Forbestown Road 0.1 mi north of Forbestown Road. 777 Comment
  CHSC30956  Eleocharis engelmannii Lowell Ahart 1980-7-4 2465 Butte In a small meadow near the intersection of Forbestown Road and Black Bart Road, about 1 mile west of Robinson Mill Road. 670 Comment
  CHSC71199  Eleocharis engelmannii Lowell Ahart 1998-6-30 8014 Butte Southwest margins of a large seep, southwest of the lone oak tree, west of the cow chute on the west side of Cheorkee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  JEPS98509  Eleocharis engelmannii Lowell Ahart 2000-10-21 8712 Butte About 100 feet north of Hamilton Road, about 1/8 mile east of Riceton Road, Rice Experiment Station northwest of Biggs, 2 1/4 miles (air) north of Biggs. 30 Comment
  CHSC36972  Eleocharis macrostachya M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4368 Butte Graylodge Wildlife Refuge, s of parking lot 1, ca. 1/2 mi ne of Headquarters, ca. 12 mi sw of Gridley. 19 Comment
  CHSC68428  Eleocharis macrostachya L. P. Janeway; C. A. Janeway 1986-8-31 1812 Butte Border along Philbrook Reservoir at PG and E Picnic Area on northeast side of lake. 1691 Comment
  CHSC78291  Eleocharis macrostachya Lowell Ahart 2000-6-21 8498 Butte In a small seep, south of Parking Area P, north of the Salmon Hole, Upper Bidwell Park, about 3 1/3 miles (air) northeast of Manzanita Avenue, Chico. 106 Comment
  CDA38946  Eleocharis macrostachya G. D. Barbe, T. C. Fuller 1982-6-14 3678 Butte Black Bart Road, 1.25 miles west of Forbestown Road. Comment
  CDA2610  Eleocharis pachycarpa L. Ahart 2000-8-3 8676 Butte 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. Comment
  SEINET9084814  Eleocharis pachycarpa L. Ahart 2000-7-18 8597 Butte Oroville Wildlife Area, ca 0.5 mile W of Pacific Heights Road, ca 4 air miles SW of Oroville. 40 Comment
  CHSC83296  Eleocharis quinqueflora L. P. Janeway; B. Castro 2002-7-7 7609 Butte High Cascade Range. Soggy sedge-dominated meadow below the head of Keyser Creek and just below the dirt road; 0.5 km east of Bald Mountain Lookout. 1695 Comment
  RSA716569  Eleocharis quinqueflora L. Ahart 2000-7-5 8553 Butte West of the lone oak tree, west of the cow chute and the large parking area on the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 404 Comment
  RSA716570  Eleocharis quinqueflora L. Ahart 2000-6-29 8542 Butte On the northwest side of Concow Road at Flea Meadow, about 1/2 mile west of Flea Mountain, about 3.5 miles (air) north of Concow Reservoir, about 5 miles (air) east of Magalia 1037 Comment
  CDA38984  Eleocharis radicans L. Ahart 2000-9-4 8686 Butte Along the west margin of a large pond, on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 0 Comment
  SEINET9084534  Eleocharis radicans L. Ahart 2000-9-4 8686 Butte E side of the Sacramento River, NW of Parrott Landing, ca 1 mile SE of Ord Ferry, ca 2 miles SE of Ordbend, ca 12 air miles SW of Chico. 32 Comment
  JEPS98610  Eleocharis rostellata Lowell Ahart 2000-6-21 8501 Butte In a large seep, on the west side of the dirt road at Parking Area L, just west of the Diversion Dam, Upper Bidwell Park, about 2 1/2 miles (air) northeast of Manzanita Avenue, Chico. 106 Comment
  JEPS122217  Elodea canadensis Lowell Ahart 2014-4-16 19371 Butte On the bottom of a large canal, about 100 yards north of East Gridley Road, on the west side of the Feather River, about 2 miles east of Gridley. Comment
  RSA699696  Elodea canadensis Lowell Ahart 2004-7-11 11225 Butte On the southeast edge of Paradise Lake, about 3/4 mi. northeast of the picnic area, about 1 mi. northeast of Paradise Dam, about 4 mi. (air) southwest of Stirling City. 815 Comment
  CHSC47644  Elymus caput-medusae Lowell Ahart 1979-6-2 1912 Butte Wash, in one of the farmed fields, Peter Ahart Ranch, about 2 1/2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  POM183186  Elymus elymoides H. F. Copeland 1930-7-21 1350 Butte Jonesville. 1524 Comment
  UCD61801  Elymus glaucus A. A. Heller 1914-7-23 11614 Butte Chico Meadows. 1219 Comment
  JEPS116073  Elymus glaucus subsp. glaucus Lowell Ahart 2009-5-30 15793 Butte On dry soil, 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 Highway32, about 10 miles northeast of Chico 269 Comment
  SEINET10661843  Elymus glaucus subsp. glaucus Lowell Ahart 2004-5-27 Ahart 10959 Butte T17N, R4E, northeast 1/4 Section 11. On the east side of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 46 Comment
  UCD62438  Elymus multisetus A. A. Beetle 1941-6-27 2740 Butte 20 miles northeast of Chico. Comment
  CHSC28562  Elytrigia intermedia subsp. barbulata M. S. Taylor 1978-7-21 1835 Butte Big Bald Rock. Ca. 2 mi w of Lake Madrone. 997 Comment
  CAS-BOT-BC410229  Enemion occidentale Lowell Ahart 1980-3-26 2053 Butte Along Swedes Flat Road, near Bangor. 320 Comment
  UCD105377  Epilobium brachycarpum E. M. Johnston 1915-1 s.n. Butte Biggs. Comment
  CDA42894  Epilobium campestre L. Ahart 2012-6-5 18166 Butte On the strand of the reservoir, north of Beatson Hollow, about 1 3/4 miles northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 6 miles (air) north of Oroville. Comment
  CHSC111964  Epilobium campestre Lowell Ahart 2012-6-5 18166 Butte On the strand of the reservoir, north of Beatson Hollow, about 1-3/4 miles northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 6 miles (air) north of Oroville. 295 Comment
  CHSC32125  Epilobium canum subsp. latifolium L. Ahart 1975-9-4 970 Butte Along South Fork of Feather River ca. 0.5 mi n of Golden Trout Crossing. 762 Comment
  POM305569  Epilobium canum subsp. latifolium Henry J. Ramsey 1939-10-15 851 Butte Feather River Hwy. Comment
  CHSC28433  Epilobium ciliatum subsp. ciliatum J. D. Jokerst 1979-10-12 372 Butte 1.0 mi. N.E. of end of Upper Park Rd., 50 mrt. E. of Big Chico Cr. 213 Comment
  UCD105646  Epilobium ciliatum subsp. ciliatum L. Ahart 1982-10-11 3863 Butte 1/10 mile SE of HQ, Graylodge Wildlife Refuge, ca. 12 miles SW of Gridley. 35 Comment
  UCD105782  Epilobium ciliatum subsp. ciliatum L. E. Hazeltine 1916-7-19 s.n. Butte Chico. Comment
  SBBG127998  Epilobium ciliatum subsp. ciliatum L. Ahart 2009-7-9 16003 Butte E side of Ten Mile House Rd, upper Bidwell Park, ca. 0.75 mi W of Hwy 32, ca. 10 mi NE of Chico 236 Comment
  JEPS117420  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2010-9-28 17248 Butte On damp rocky soil, along west side of Big Kimshew Creek, about 100 yards east of the poor dirt road, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrood Reservoir 1886 Comment
  UC600552  Epilobium ciliatum subsp. glandulosum H. F. Copeland 1932-8-23 Butte meadow near Jonesville Inn; Jonesville 1500 Comment
  SEINET9070861 Image available Epilobium ciliatum subsp. glandulosum E. B. Copeland 1929-1 388 Butte Jonesville 1500 Comment
  CHSC28438  Epilobium cleistogamum J. D. Jokerst 1979-5-12 285 Butte Adjacent to Vernal Pools, ca. 1.0 mi. S.E. of Chico Muni Airport, E. of Cohasset Hwy. Comment
  CHSC28718  Epilobium cleistogamum R. A. Schlising 1979-8-17 3470 Butte Richvale vernal pools, 1/4 mile S of jct Hwy162 to Oroville and Hwy 99, along the latter and across from Thermalito Afterbay. In vernal pool. Comment
  UC1594693  Epilobium hallianum Lowell Ahart 1992-7-21 6803 Butte on sides of a snow lake on s side of Hollow Coon Hollow (about 2 air mi ne of Philbrook Reservoir) 1737 Comment
  CHSC42361  Epilobium minutum Lowell Ahart 1987-5-6 5530 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  JEPS123820  Epilobium minutum Lowell Ahart 2015-4-18 20052 Butte About 1/2 mile southwest of the Forbestown Reservoir, about 3 1/2 miles (air) northeast of Forbestown. Comment
  SEINET10453022  Epilobium obcordatum Mary Susan Taylor 1980-8-2 Taylor 3201 Butte T27N R5E center sec 32, Jonesville quad. Humboldt Peak, N tip of the county. 2155 Comment
  CHSC35106  Epilobium pallidum R. A. Schlising 1980-6-1 3613 Butte S of Paradise off Pentz Hwy, at Kunkle Reservoir. 440 Comment
  UC726201  Epilobium pallidum A. A. Heller 1941-5-24 16148 Butte Clark Rd 2 mi below Paradise Comment
  CDA38100  Epilobium pygmaeum T. C. Fuller 1959-7-6 s.n. Butte East of Highway 99E, 4.5 miles south of Oroville. 0 Comment
  CHSC116208  Epilobium torreyi Lowell Ahart 2015-7-4 20268 Butte On both sides of the dirt road, branch road to a meadow west of road to Jackson Ranch, about 500 yards north of the County Road, about one mile west of the intersection of Lumpkin Ridge Road, road to Cascade or Fall River and County Road, about 7 (air) miles northeast of Feather Falls. 1252 Comment
  CHSC28716  Epilobium torreyi R. A. Schlising 1979-5-30 3424 Butte Richvale vernal pools, 1/4 mile S of jct Hwy 162 to Oroville and Hwy 99, along latter and across from Thermalito Afterbay. Edges of pools. Comment
  CHSC35108  Epilobium torreyi R. Schlising; R. Banchero 1980-7-31 3945 Butte N part of county, N of Snag Lake; along road N and E to Snow Mt. Roadside. 1737 Comment
  CHSC94066  Epilobium torreyi R. Fischer 2005-6-12 743 Butte Sierra Nevada foothills, off Hwy. 32, about 4 miles east of Chico off 10 Mile House Road in Bidwell Park. Collection made near the junction of Guardian Trail on the dry roadbed, an opening in a brush/oak woodland. 219 Comment
  JEPS117208  Epilobium torreyi Lowell Ahart 2010-5-14 16659 Butte Area of erosion control, Disc Golf Area, about 100 yards west of the entrance to the Disc Golf Area, about 120 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 372 Comment
  CHSC63794  Equisetum arvense S. C. Morey 1983-8-1 664 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  POM197059  Equisetum arvense H. F. Copeland 1927-5-6 225 Butte Jonesville. Comment
  RSA794970  Equisetum hyemale var. affine L. Ahart 2010-9-13 17151 Butte Oroville Wildlife Area, about 0.5 miles west of Pacific Heights Road, about 3.5 air miles northwest of Palermo. 32 Comment
  CAS-BOT-BC33516  Equisetum laevigatum Edwin Bingham Copeland 1930-6-24 403 Butte Jonesville 1500 Comment
  CHSC60937  Equisetum laevigatum Lowell Ahart 1993-6-26 7012 Butte About 1/4 mile west of the Lost Creek Reservoir. 1036 Comment
  CHSC49237  Eragrostis cilianensis Vernon Oswald 1987-7-6 3095 Butte Butte Creek Preserve on the s side of Butte Creek ca. 0.25 mi e of the Hwy 99 bridge. 67 Comment
  UCD62963  Eragrostis cilianensis A. A. Heller 1914-6-2 11478 Butte 8 miles north of Oroville. Comment
  CDA34555  Eragrostis pectinacea var. pectinacea L. Ahart 2008-11-4 15405 Butte On the east edge of the paved road. about 100 yards south of the entrance to the large parking area on the north end of Oroville Dam, about 4 miles (air) northeast of Oroville. Comment
  CDA42964  Eragrostis pectinacea var. pectinacea L. Ahart 2013-10-12 19105 Butte On the east side of Palermo Honcut Highway, about 20 yards south of Palermo Road, Palermo. Comment
  CHSC30530  Eragrostis pectinacea var. pectinacea M. Merryman; R. Banchero 1979-9-23 48 Butte SW of Chico, just e of Ord Ferry and Sacramento River. Riverbank. 30 Comment
  CHSC38820  Eragrostis pectinacea var. pectinacea Vernon Oswald 1983-6-18 710 Butte Upper Bidwell Park, Chico, in Lindo Channel at the diversion weir. 79 Comment
  JEPS76254  Eragrostis pectinacea var. pectinacea W. L. Jepson 1939-8-17 19465 Butte Feather River bottom near Oroville; Feather River bottom 45 Comment
  RSA755367  Eragrostis pilosa var. pilosa L. Ahart 2009-10-7 16408 Butte Just under water when the Thermalito Afterbay is full, Larkin Road access to the Thermalito Afterbay, about 5 air miles southwest of Oroville. 41 Comment
  JEPS115368  Eremocarpus setiger Lowell Ahart 2009-7-3 15986 -A Butte On the north side of the road, 30 yards west of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 30 yards east of Cedar Grove, Lower Bidwell Park, Chico 67 Comment
  CHSC44115  Eremogone cliftonii L. P. Janeway; R. A. Schlising 1987-6-26 2307 Butte Above Camp Cr 2.5 mi E of Granite Ridge along rd to Lynch and Logue Mdws. 1365 Comment
Read comments
Jul 8 2014
  UC1609016  Ericameria bloomeri Lowell Ahart 1993-9-8 7170 Butte ridge top about 1 mi e Snow Mountain 2103 Comment
  UC699659  Ericameria nauseosa var. speciosa E. B. Copeland Butte Butte Meadows Butte Comment
  SEINET10473505  Erigeron Mary Susan Taylor 1981-5-21 Taylor 3788 Butte In Mayaro, along creek, ca. 2 mi NE of Pulga on Feather River Hwy 70. 1600 Comment
  CHSC79452  Erigeron annuus G. F. Hrusa; T. D. Wilfred 1997-7-3 13966 Butte Northern California, Sierra Nevada. NE side of upper end of Paradise Lake. Where last tributaries from E enter. [Lat./Long. on label is '39 52 N; 121 35 W']. 770 Comment
  CHSC110404  Erigeron canadensis Lowell Ahart 2012-9-28 18456 Butte Restoration area, south of Vallombrosa Avenue, north of Sycamore Pool in Big Chico Creek, Lower Bidwell Park, Chico. 62 Comment
  RSA699540  Erigeron inornatus var. inornatus R. D. Fischer 2004-6-12 162 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Rocky canyon edge of Humboldt Trail N of Bloody Pin Trail junction 412 Comment
  CHSC69443  Erigeron petrophilus var. sierrensis Lowell Ahart 1997-9-6 7889 Butte Near the McNab Cypress grove, near the steel tower power line, along the sides of a logging road, about 1/4 mile west of Rim Road, about 2 miles (air) northeast of Concow Reservoir. 731 Comment
  CHSC85443  Erigeron petrophilus var. sierrensis R. D. Fischer; Jenny Marr 2003-11-23 14 Butte Sierra Nevada foothills, west of Hwy 70 between Jarbo Gap and Pulga, on logging rd U30 off Rim Rd out of Jarbo Gap. 853 Comment
  CHSC117775  Erigeron philadelphicus David Isle; Frank Pendell 2016-4-8 2160 Butte From Stonyford jct. Co Rd 306/18N1.1 go~1 5/8 mi W ti Jct w/ Frank Pendell residence driveway. Then 1/4 mi S to windmill. ERPH grows to SE in canal of unnamed ephemeral stream. 377 Comment
  SEINET10938057  Erigeron strigosus Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4218 Butte T21N R6E sec 10? Ca. 2 mi s of Milsap Bar, ca. 23 mi ne of Oroville. Yellow Pine Forest; 750 m. 750 Comment
  HSC97192  Eriochloa acuminata var. acuminata L. Ahart 2004-8-30 11397 Butte South side of O'Brien Rd., about 1 1/2 miles (air) southeast of Gridley. 28 Comment
  JEPS128619  Eriochloa contracta Lowell Ahart 2017-8-1 21654 Butte Park west of railroad, northeast of the intersection of Virginia Street and Sycamore Street, in Gridley. Comment
  CHSC35968  Eriodictyon californicum M. S. Taylor 1982-5-23 4514 Butte Scattered on n side of Hwy 70, e side of Arch Rock Tunnel, ca. 1/2 mi sw of Butte-Plumas county line. 487 Comment
  RSA401485B  Eriodictyon californicum M. Vincent 1962-4-19 213 Butte Humbug Road, 3 miles northeast of Centerville Comment
  UC1124301  Eriodictyon californicum C. G. Albertus 1933-6-6 13 Butte 1/2 mi nw Nelson's Bar; Chico Quadrangle Comment
  SEINET10497041  Eriodictyon californicum Mary Susan Taylor 1975-2-16 Taylor 385 Butte Ca. 2 mi S of Kunkle Reservoir, ca. 4 mi S of Paradise, on W side of Pentz-Magalia Hwy. Foothill Woodland. 427 Comment
  CHSC11924  Eriogonum marifolium var. marifolium E. B. Copeland 1930-7-12 410 Butte Above Jonesville. 2000 Comment
  RSA719711  Eriogonum nudum var. nudum Michael A. Vincent, K. Levings 2006-7-29 12890 Butte Northeast of Chico along Rt. 32 Comment
  CAS-BOT-BC261717  Eriogonum nudum var. oblongifolium John Thomas Howell 1975-6-15 51120 Butte Paradise. Skyway near Clark Road 609 Comment
  CAS-BOT-BC269851  Eriogonum nudum var. pubiflorum Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  CHSC32140  Eriogonum nudum var. pubiflorum L. Ahart 1977-10-19 1605 Butte Peter Ahart Ranch, Honcut. On dry gravelly soil in open pasture fields, it can also be found on small gravel bars along small washes and on dredger piles along North Honcut Creek. 50 Comment
  CHSC34722  Eriogonum nudum var. pubiflorum M. S. Taylor 1981-7-10 4058 Butte N side of Feather River Hwy 70 at Pulga bridge, on large serpentine outcrop, ca. 20 mi ne of Oroville. 487 Comment
  CHSC39015  Eriogonum nudum var. pubiflorum J. D. Jokerst 1983-8-21 1928 Butte Top of North Table Mt., ca 1/3 mile north of Beatson Hollow. Common along the edge of the basalt mesa in accumulation of basalt talus or on cliff faces and thin rocky soils. Comment
  CAS-BOT-BC269846  Eriogonum nudum var. pubiflorum John Thomas Howell 1959-9-19 34614 Butte 2 miles west of Oroville 45 Comment
  CAS-BOT-BC269850  Eriogonum nudum var. pubiflorum Gladys L. Smith 1976-6-5 4534 Butte Along banks of lower Feather River Canyon west of Belden 457 Comment
  UC1594624  Eriogonum roseum Lowell Ahart 1992-9-20 2923 Butte about 1/8 mi w Enterprise Boat Launch Ramp (below the high water line of Lake Oroville, about 3/4 mi sw of Rocky Point); Lake Oroville 243 Comment
  SD1350  Eriogonum spergulinum var. reddingianum E. B. Copeland 1931-7-11 633 Butte Jonesville, Ridge between Jones and North Willow Creeks 1700 Comment
  CHSC41367  Eriogonum umbellatum var. ahartii R. A. Schlising; K. Tarp 1983-7-28 4354 Butte NE part of county, SW of Coyote Gap and S of Big Bar Mt. 868 Comment
  CHSC69452  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-8-30 7882 Butte On the south side of the road to Forbestown Reservoir, west of Woodleaf Creek, 1/2 mile south of the Forbestown Reservoir Dam, about 4 miles (air) northeast of Forbestown. 609 Comment
  JEPS117896  Eriogonum umbellatum var. ahartii L. P. Janeway 2008-5-26 9374 Butte Ridge top at head of Rattlesnake Creek (short tributary to West Branch Feather River) about 2.9 air km east of Magalia and 0.8 air km east of Sawmill Peak Northern High Sierra Nevada 951 Comment
  RSA0049736  Eriogonum umbellatum var. ahartii Dean Wm. Taylor 2013-7-31 21389 Butte Jordon Hill Road, ca. 1 air mile directly east and across the West Branch Feather River canyon from Magalia 701 Comment
  JEPS48320  Eriogonum ursinum Paul C. Hutchison with J. K. Wright and R. Bacigalupi 1963-6-1 2693 Butte Pulga Bridge, west side North Fork of Feather River, Pulga Bridge 472 Comment
  CHSC31069  Eriogonum vimineum M. Hayes; J. Warner 1977-9-11 59 Butte Along dirt and gravel shoulder, Hwy 32, exactly 24.6 mi e of Hwy 99 and Hwy 32 overpass in Chico. 914 Comment
  CAS-BOT-BC308155  Eriophyllum lanatum var. grandiflorum Helen M. Edwards 1917-6-1 s.n. Butte De Sabla Comment
  CHSC30728  Eriophyllum lanatum var. grandiflorum M. S. Taylor 1980-5-27 2732 Butte On n side of Bald Rock Rd, ca. 0.5 mi e of its jct with Oroville-Quincy Hwy, ca. 0.5 mi s of Lake Madrone. 701 Comment
  UCD132222  Eriophyllum lanatum var. grandiflorum Collector Unknown 1925-5-17 1621 Butte Marysville Buttes. Comment
  CAS-BOT-BC308164  Eriophyllum lanatum var. grandiflorum Mrs. Eva Pattee 1923-5-15 s.n. Butte Shady Rest near Cresta Comment
  CAS-BOT-BC301465  Eriophyllum lanatum var. integrifolium A. A. Heller 1917-7-26 12821 Butte Butte Meadows 1402 Comment
  CDA34625  Erodium botrys L. Ahart 2009-4-17 15561 Butte On the south slope of a ridge about 150 yards west of Highway 32, near the south boundary, Upper Bidwell Park, about 5 miles (air) northeast of Chico. Comment
  CHSC38450  Erodium brachycarpum Vernon Oswald 1983-3-5 116 Butte Upper Bidwell Park, Chico, on the north rim at a level w of Horseshoe Lake. 128 Comment
  CHSC19922  Erodium cicutarium M. S. Taylor 1975-2-16 375 Butte Abundant ca. 1/4 mi w of Pentz-Magalia Hwy, ca. 5 mi s of Paradise, in vicinity of Lime Saddle Reservoir. Comment
  CHSC30865  Erodium cicutarium J. D. Jokerst 1979-3-23 1157 Butte Adjacent to intermittent creeks. Top of North Table Mt., ca 100 m N of the intersection of Cherokee Rd and E edge of Mt. 396 Comment
  SEINET8565597  Erodium cicutarium A. R. James 1963-4-16 s.n. Butte Chico. 61 Comment
  CHSC31474  Eryngium articulatum L. Ahart 1980-8-10 2524 Butte Near the Western Pacific RR tracks and Lower Honcut Rd, Honcut. 35 Comment
  CAS-BOT-BC40747  Erysimum capitatum A. A. Heller 1915-4-12 11811 Butte Near Cohasset. Comment
  UC176244  Erysimum capitatum A. A. Heller 1913-6-7 10826 Butte near Stirling; West Branch of the North Fork of the Feather River 914 Comment
  CHSC25361  Erysimum capitatum var. capitatum Marc P. Hayes 1977-4-22 5 Butte Ca. .8 km sw of Pulga, 110 m n of North Fork of Feather River, along Pulga Rd., ca. 100 m from juncture with Hwy 70. 490 Comment
  SEINET8340802  Erythranthe glaucescens Sandra C. Morey 1978-4-10 17 Butte highway 32, ca. 7.5 mi e of junction with Highway 99 at Chico. 515 Comment
  CHSC10851  Erythranthe guttata Lowell Ahart 1966-5-7 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC112695  Erythranthe guttata Lowell Ahart 2013-7-1 18821 Butte Seep along road gutter, on the east side of Black Bart Road, about 3/4 mile (by road) southwest from the intersection of Forbestown Road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown. 731 Comment
  CHSC38701  Erythranthe guttata Vernon Oswald 1983-6-3 625 Butte Upper Bidwell Park, Chico, in Lindo Channel near the diversion channel. 79 Comment
  CHSC3884  Erythranthe guttata Gerry Carrauthers 1966-3-21 67 Butte Coal Canyon Rd. Ca. 15 mi S.E. of city of Chico. Comment
  SEINET8362196  Erythranthe moniliformis C. E. Wickstrom 1964-12-9 61 Butte at Butte Meadows approx. 160 ft. sw of where [the] stream goes under Scout Rd. ca. 1.5 mi. from furn off Humboldt Rd.; Chico. Comment
  SEINET8399965  Erythranthe moniliformis E. B. Copeland 1929-7-13 463 Butte Jonesville. 1550 Comment
  CHSC44667  Erythranthe nasuta R. Banchero 1980-4-11 106 Butte Along Honeyfrun Rd ca 3.6 mi NE of the Covered Bridge, Ca 3.7 mi SW of Paradise. 243 Comment
  CHSC24787  Erythronium multiscapideum C. E. Stopher 1976-3-20 9 Butte 1.6 km nw of Forest Ranch. 610 Comment
  CHSC38878  Erythronium multiscapideum Vernon Oswald 1983-3-13 158 Butte Upper Bidwell Park, Chico, 100 ft. s of Upper Park Rd. at the w entrance to Brown's Hole (2.6 mi e of the power lines). 231 Comment
  CHSC4195  Erythronium multiscapideum E. P. Parreno 1967-4-10 Butte Ca. 300 yards from Covered Bridge, NE Chico. Comment
  CHSC65606  Erythronium multiscapideum L. P. Janeway 1995-5-18 4764 Butte Jackson Ranch Ridge, between Fall River and Frey Creek. 1155 Comment
  CAS-BOT-BC504523  Erythronium multiscapideum Elmer I. Applegate 1932-4-12 7041 Butte Wooded botton of the Sacramento River about 2 miles west of Cana, north-west of Butte County Comment
  CAS-BOT-BC504524  Erythronium multiscapideum C. C., Mrs. Bruce 1898-5-1 2011 Butte Butte Creek Comment
  CAS-BOT-BC504536  Erythronium multiscapideum John Thomas Howell 1962-6-15 37497 Butte Magalia 731 Comment
  UCSB63621  Eschscholzia caespitosa Holloway, Steve 1986-4-1 Butte North Table Mountain, 150m W of Cherokee Rd., 11.1 km N of the Feather River (Oroville 7.5 minute series Quadrangle. NW1/4, Sec. 17, T20N, R4E 396 Comment
  POM253318  Eschscholzia caespitosa subsp. caespitosa A. A. Heller 1938-4-23 15052 Butte West side of the summit on the Feather River Highway near the Yankee Hill road Comment
  CHSC76952  Eschscholzia californica Ida Ryan 1893-4-1 Butte Rancho Chico. Comment
  CHSC103728  Eschscholzia lobbii Lowell Ahart 2010-5-16 16702 Butte About 1/2 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 364 Comment
  UC1303147  Eschscholzia lobbii A. A. Heller 1928-4-4 14483 Butte in a field near Hooker Oak (e of Chico) Comment
  UC176651  Eschscholzia lobbii A. A. Heller 1913-4-6 10714 Butte near Big Chico Creek (e of Chico) Comment
  CAS-BOT-BC419505  Eschscholzia lobbii A. A. Heller 1914-3-7 11188 Butte Hills 8 miles north of Oroville Comment
  HSC66209  Eschscholzia lobbii D. L. Daniels 1979-3-23 13 Butte 50 ft. W of Bruce Rd. and 80 ft. N of Skyway, 1 1/2 mi. SE of Chico on Skyway 91 Comment
  UC2026857  Eucalyptus Lowell Ahart 2012-10-12 18484 Butte On the south side of the paved park road, about 50 yards east of the east side of the Deer Pen, east of the intersection of Chico Canyon Road (E 8th Street) and Forest Avenue, Lower Bidwell Park, Chico. Comment
  CHSC101811  Eucalyptus camaldulensis Lowell Ahart 2009-6-12 15843 Butte On the east side of the deer pen, about 50 yards north of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 130 yards east of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  CHSC44278  Euonymus occidentalis var. occidentalis V. Oswald; W. Dempsey, D. Perske 1988-6-15 3386 Butte Douglas Perske's property located at the e end of Bull Creek Rd., ca. 1 mi (air) ne of Cohasset School. Near the bottom of a canyon slope along the W. Branch of Mud Creek. 853 Comment
  CHSC48379  Euphorbia lathyris Vernon Oswald 1987-4-22 2341 Butte Along Durham Mutual Ditch e of Butte Creek and ne of Hwy 99, ca 1600 ft s of the diversion dam on Butte Creek. 68 Comment
  UCD142602  Euphorbia maculata John Thomas Howell 1959-9-20 34671 Butte Eastern outskirts of Oroville. 60 Comment
  CHSC47418  Euphorbia peplus Lowell Ahart 1974-2-12 295 Butte In a garden, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  SEINET10841056  Euphorbia serpillifolia Mary Susan Taylor 1978-9-8 Taylor 1887 Butte Along flood control slough, ca. 4 mi N of Chico, along Hwy 99. 61 Comment
  CHSC57223  Euphorbia spathulata Vernon H. Oswald; Lowell Ahart 1992-3-24 4890 Butte Lake Oroville Recreation Area on the north side of Thermalito Diversion Pool, along the first stream west of the spillway and ca. 0.3 mi north of Burma Rd. 76 Comment
  CHSC50815  Eurybia integrifolia Vernon Oswald; Lowell Ahart 1990-7-19 4363 Butte Slope on the south side of Philbrook Creek, ca. 3 mi east of Philbrook Reservoir, ca. 0.2 mi west of the Plumas County line. 1981 Comment
  UC600725  Eurybia integrifolia H. F. Copeland 1932-8-21 Butte near, Jonesville Kennedy's cabin 487 Comment
  CHSC37087  Euthamia occidentalis L. Ahart; M. S. Taylor 1982-10-11 3860 Butte Ca. 0.1 mi se of Graylodge HQ, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CHSC109589  Festuca arundinacea Lowell Ahart; Susan Bazell, Josephine Guardino 2012-5-31 18117 Butte On the north side of the paved park road (Peterson Drive) about 300 yards west of the gate, Lower Bidwell Park, Chico. 76 Comment
  UCD65826  Festuca californica John Thomas Howell; Gordon H. True 1967-5-9 42243 Butte On NW side of Feather River Canyon near Pulga Bridge. 426 Comment
  CHSC106593  Festuca elmeri B. Castro; L. P. Janeway 2001-3-17 1267 Butte Along USFS Rd 23N28, about halfway between Coyote Gap and Big Bar Mtn. 1249 Comment
  POM206211  Festuca elmeri A. A. Heller 1902-5-16 5562 Butte Marysville Buttes (rocky slope of East Butte) Comment
  CHSC109625  Festuca myuros Lowell Ahart 2012-6-17 18081 Butte On the north side of Big Chico Creek, southeast of Table 21, south of the paved park road, northeast of the Deer Pen, Lower Bidwell Park, Chico. 73 Comment
  SEINET10507961  Festuca occidentalis Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4165 Butte T21N R6E ne sec 29. Along sides of Bean Creek Rd, ca. 0.5 mi s of Little Bald Rock, ca. 19 mi ne of Oroville. Yellow Pine Forest; 1000 m. 1000 Comment
  SEINET10507963  Festuca occidentalis Mary Susan Taylor 1975-10-29 Taylor 969 Butte Butte Creek, ca. 2-500 yds S of Humbug Road, ca. 2 mi E of junction of the Skyway and Humbug Road; with Platanus racemosa, Rhus trilobata. Comment
  SEINET10963544  Festuca occidentalis Roland McKee 1918-5-26 McKee s.n. Butte Stirling. Comment
  SEINET10507969  Festuca subuliflora Lowell Ahart 1991-6-19 Ahart 6660 Butte Along the south side of the dirt road that goes to the Forbestown Reservoir, about 1 1/2 miles southwest of Forbestown Reservoir. Yellow Pine Forest. T19N R7E NW/S5. 610 Comment
  CAS-BOT-BC77689  Ficus carica John Thomas Howell 1959-9-20 34702 Butte Feather River Highway 5.5 miles below West Branch bridge Comment
  JEPS119620  Ficus carica Lowell Ahart 2012-6-21 18227 Butte About 20 yards west of the Freeway, Lower Bidwell Park, Chico. Comment
  CHSC65888  Filago pyramidata var. pyramidata Vernon H. Oswald 1996-4-20 7404 Butte Sacramento Valley. Sacramento River National Wildllife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Pasture in the S paddock of Tract 7, Sanctuary II. 32 Comment
  CHSC1545  Fragaria vesca R. Carter 1964-6-12 115 Butte About 3/4 mi. W of Forbstown on Forbstown Rd. on N side of road. 914 Comment
  RSA196149  Fragaria virginiana E. B. Copeland 1929-7-16 373 Butte Jonesville. 1550 Comment
  CAS-BOT-BC62942  Frangula californica subsp. tomentella Vesta Holt 1932-6-1 s.n. Butte Near Chico. Comment
  HSC104024  Frangula californica subsp. tomentella L. P. Janeway 2012-6-23 10884 Butte Southwestern spur of Rocky Ridge, 0.6 air km. south of Batchelor Point; along Forest Service Rd. 23N06E, 0.8 km SE of Rim Road/Ponderosa Way. 895 Comment
  CAS-BOT-BC53778  Frangula rubra Lowell Ahart 1989-5-29 6311 Butte About 1 mile north-east of Forbestown Road, about 2 1/2 miles north-east of Forbestown 822 Comment
  CHSC86860  Frangula rubra L. P. Janeway; John Hunt 2003-7-11 7896 Butte Northern High Sierra Nevada. Along east side of North Fork Feather River arm of Lake Oroville; 1.1 km north-northeast of mouth of French Creek. 296 Comment
  CHSC1531  Frangula rubra subsp. obtusissima A. Koopman 1929-5-15 Butte Cohasset canyon. Comment
  CAS-BOT-BC223384  Fraxinus dipetala Barbara T. Menzies 1978-4-17 s.n. Butte Nimshaw Road w. of De Sabla Comment
  CHSC1084  Fraxinus dipetala M. Roberson 1956-5-2 Butte S.W. of Paradise, along the Skyway. 426 Comment
  JEPS55690  Fritillaria Wayne Roderick 1967-4-16 Butte near Magalia Comment
  CAS-BOT-BC130313  Fritillaria eastwoodiae L. C. Hanson 1987-4-27 s.n. Butte De Sabla Reservoir, near Magalia Comment
  CAS-BOT-BC130314  Fritillaria eastwoodiae L. C. Hanson 1987-4-15 s.n. Butte Forbestown Site, on road from Forbestown to Woodleaf Comment
  CHSC29995  Fritillaria micrantha L. Ahart 1980-3-26 Butte Ca. 1/2 mi e and 1/4 mi s of Hurleton. 600 Comment
  RSA31669  Fritillaria pluriflora A. A. Heller 1916-3-5 s.n. Butte Along Hwy 10 miles north of Chico Comment
  CHSC42432  Galium aparine Lowell Ahart 1987-5-9 5579 Butte Along Pulga Road, about 1/4 mile west of Bardees Bar along the North Fork of the Feather River, about 2 1/2 miles south-west of Pulga. 365 Comment
  CHSC46404  Galium aparine Lowell Ahart 1989-5-28 6295 Butte South of Oregon Gulch road, about 1/2 mile north of the Cementery, about 1 1/4 miles west of Rocky Point, about 10 miles east and 3 miles north of Oroville. 335 Comment
  CHSC54164  Galium aparine Lowell Ahart 1991-4-19 6646 Butte On the west side of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 2 and 3/4 miles east of Honcut, about 12 miles south-east of Oroville. 45 Comment
  UC600430  Galium bolanderi H. F. Copeland 1930-7-28 Butte ridge above hotel; Jonesville Comment
  CHSC48884  Galium divaricatum Vernon Oswald 1985-5-1 1741 Butte Upper Bidwell Park, Chico, at the Police Pistol Range on the S edge of the Golf course. 97 Comment
  UCD111114  Galium porrigens Christopher Mallek 2008-1 HW2- 22 Butte Magalia. 756 Comment
  SEINET10500739  Galium porrigens var. tenue Mary Susan Taylor 1981-3-18 Taylor 3426 Butte T23N R4E north center third sec 30 Paradise SE quad; from bridge crossing West ranch Feather River, ca. 1/4-1/2 mi e and s along Ponderosa Way (Jordan Hill Rd), e of Magalia; 1600-1900 ft. 488 Comment
  JEPS9393  Galium sparsiflorum subsp. glabrius Rimo Bacigalupi with R. Hauke and Geo. Bacigalupi 1954-7-15 4725 A Butte 0.4 mi below, along Butte Canyon side, on Nimshew (Humbug) Rd Nimshew 701 Comment
  CHSC35215  Galium tricornutum M. S. Taylor 1981-5-1 3584 Butte E side of Hwy 70, ca. 4 air mi NW of Oroville. 91 Comment
  UC392193  Galium trifidum E. B. Copeland July 1929 Butte Jonesville 1550 Comment
  CHSC51012  Galium trifidum var. pacificum Lowell Ahart 1990-7-15 6554 Butte West of the Enterprise Boat Launch Area, about 1/2 mile north-west of the Enterprise Bridge across Lake Oroville. 268 Comment
  CHSC33951  Galium triflorum M. S. Taylor; L. Ahart 1981-8-15 4194 Butte N side of Coon Hollow Rd, along creek, 1.2 mi E of its jct with Humbug Rd, ca. 12 mi NE of Stirling City. 1676 Comment
  CAS-BOT-BC169938  Garrya fremontii E. B. Copeland 1932-7-27 667 Butte Jonesville 502 Comment
  JEPS119507  Garrya fremontii Lowell Ahart 2012-3-2 17759 -A Butte About 200 yards north of Ten Mile House Road, about 200 yards west of Highway 32 about 9 miles northeast Chico. Comment
  SEINET12137328  Garrya fremontii M. S. Taylor, Pierce, E. 1981-1 3375 Butte both sides of Cohasset Hwy, ca 3 mi S of Cohasset Comment
  CHSC84035  Gastridium phleoides Lowell Ahart 2003-6-20 10295 Butte In pasture fields, Peter Ahart Ranch, about 1 1/2 miles north and 2 miles east of Honcut, about 12 miles southeast of Oroville. 45 Comment
  CHSC8595  Gastridium phleoides M. Banning 1969-4-18 83 Butte Table Mt., 1/2 mi. S. of Oregon City junction 30' inside fence. 487 Comment
  UCD66574  Gastridium phleoides A. A. Heller 1914-6-2 11474 Butte 8 miles north of Oroville. Comment
  RSA4231  Gayophytum heterozygum E. B. Copeland 1929-7-29 387 Butte Jonesville. 1650 Comment
  RSA774144  Gayophytum heterozygum L. Ahart 2010-9-21 17215 Butte About 70 yards east of the poor dirt road, about 80 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
  CHSC94246  Gayophytum racemosum Lowell Ahart 2006-7-16 13005 Butte On the west side of the poor dirt road, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1524 Comment
  CHSC77425  Genista maderensis Laura Bogni 1997-4-5 15 Butte Magalia grove. West side of Coutelenc Rd.; 1 mi. due W of Sawmill Peak; 1/2 mi. SE of Magalia Reservoir. 701 Comment
  CAS-BOT-BC208057  Genista monspessulana John Thomas Howell 1959-9-20 34676 Butte Lower foothills, eastern outskirts of Oroville 60 Comment
  CAS-BOT-BC208059  Genista monspessulana Richard R. Halse 2006-8-3 6986 Butte Along State Hwy. 32 ca. 16.3 miles northeast of Chico, near junction with Platte Mountain Road 1000 Comment
  CHSC88166  Gentianopsis simplex Lowell Ahart 2004-8-2 11332 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
  SD3714  Gentianopsis simplex E. B. Copeland 1930-8-2 Butte Jonesville 1500 Comment
  CHSC672  Geranium carolinianum V. Holt 1935-3-30 Butte Chico Creek ridge. 365 Comment
  CHSC52025  Geranium dissectum Mark Loy 1980-4-8 16 Butte Ca. 5 mi N of Oroville, 7.2 mi N of Table Mt. Rd, ca. 100 yards W of Cherokee Rd. 365 Comment
  JEPS122280  Geranium dissectum Lowell Ahart 2014-4-9 19341 Butte West end of Liberty Road, about one mile (air) south of Colusa Highway, about 7 miles (air) southwest of Gridley. Comment
  CAS-BOT-BC263236  Geranium purpureum Lowell Ahart 2008-5-12 14762 Butte On the east side of Ponderosa Way, about 1 mile (air) southwest of the Ponderosa Dam, about 2 1/4 miles (air) northwest of Forbestown 670 Comment
  RSA699525  Gilia capitata subsp. pedemontana R. D. Fischer 2004-4-20 0126 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy 32. Patch located approx. midway along Humboldt Trail 427 Comment
  RSA590189  Gilia tricolor Michael A. Vincent, Robert M. Rhode, Jim Snowden 1996-3-29 7210 Butte North Table Mountain, W of Cherokee Rd. N of Oroville. N side of Beatson Hollow, 1.9 miles along trail from entrance on Cherokee Rd. Comment
  HSC32409  Gilia tricolor Dave Knorr 1974-4-20 134 Butte Oroville's Table Mtn. near Cherokee Rd. Comment
  JEPS120858  Glinus lotoides Lowell Ahart 2013-6-18 18810 Butte About 30 yards north of Lower Honcut Road, about 1.75 miles west of Honcut. Comment
  SEINET10537440  Glinus lotoides Lowell Ahart 1990-10-5 Ahart 6631 Butte Below the high water line of Lake Oroville, about 1/8 mile south-west of the Enterprise Boat Launch Area, about 3/4 mile north-west of the Enterprise Bridge across Lake Oroville. Foothill Woodland (destroyed). T19N R6E NW/S6. 229 Comment
  CHSC46289  Glycyrrhiza lepidota Vernon Oswald 1989-5-23 3783 Butte Butte Sink Wildlife Area (w portion of Schohr Ranch). Growing on the dike along Butte Creek n of thew Gridley-Colusa Hwy. 18 Comment
  SEINET10905047  Gnaphalium Mary Susan Taylor 1981-5-6 Taylor 3625 Butte T21N R7E sw sec 30, Forbestown quad. W side of rd leading to Jackson Ranch, ca. 5 air mi N of Feather Falls. Yellow Pine Forest; 3700 ft. 1128 Comment
  CAS-BOT-BC302473  Gnaphalium palustre E. B. Copeland 1931-7-18 s.n. Butte Jonesville 1700 Comment
  CAS-BOT-BC302474  Gnaphalium palustre E. B. Copeland 1931-7-18 s.n. Butte Jonesville 1700 Comment
  CHSC30726  Gnaphalium palustre M. S. Taylor 1980-7-6 3057 Butte Ca. 1 mi e of Meridian Rd, ca. 1.25 mi ne of its jct with Hwy 99, ca. 8 mi n of Chico. 67 Comment
  SEINET10474254  Gnaphalium purpureum Lowell Ahart, Peter Ahart 1984-6-10 Ahart 4688 Butte Along edge of a new subdivision road ca. 1 mi SE of Hurleton, 1/12 mi E of Oak Grove Cemetary, ca. 10 mi E of Oroville; Foothill Woodland; 500 m. 500 Comment
  CHSC112719  Gratiola ebracteata Lowell Ahart 2013-10-26 19220 Butte South side of Philbrook Creek, below the high water line (strand) of Philbrook Reservoir. 1681 Comment
  UCD123729  Gratiola ebracteata R. N. Raynor; H. A. Hannesson 1941-5-9 s.n. Butte 4 miles west of Oroville. Comment
  SEINET10473780  Grindelia camporum Mary Susan Taylor 1975-6-30 Taylor 811 Butte E side of Cohasset Hwy, ca. 2 mi N of Chico; Valley Grassland. 244 Comment
  UC426942  Hackelia californica E. B. Copeland 1930-6-29 449 Butte Jonesville 1550 Comment
  RSA496348  Hackelia californica Elaine Joyal, D. Mehlman 1988-7-3 1308 Butte Butte-Tehama Cos. line: Lassen National Forest, e side of Humboldt summit. 2100 Comment
  CHSC35084  Hackelia nervosa R. A. Schlising; J. Fuller, M. Merryman, R. Banchero 1981-6-20 4093 Butte N part of county, E of Inskip, 5.8 mi E of crossing of West Branch of Feather River. Comment
  CDA3406  Hamamelis vernalis L. P. Janeway, Erin Brandy 2007-5-9 8977 Butte Sierra Nevada; Along old Berry Creek Rd 1.6 km n of Oroville-Quincy Hwy; 1.8 air km S of the mouth of Berry Creek at North Fork Feather River (Lake Oroville). Steep NE facing slope; mostly above the road, but also occasionally below. 0 Comment
  CHSC25272  Hastingsia alba M. S. Taylor 1977-6-26 1391 Butte On ne side of Big Chico Creek directly under Ponderosa Way bridge, 5 mi e of Cohasset. 457 Comment
  CHSC31094  Helianthella californica var. nevadensis Herb Allen McLane 1980-4-25 15 Butte 1 mi sw of Ponderosa Dam, Plumas National Forest. 390 Comment
  CHSC43611  Helianthella californica var. nevadensis Vernon H. Oswald 1983-8-17 989 Butte Trail between Humboldt Summit and Humboldt Peak, ne of Jonesville. At the base of slope. 2023 Comment
  CHSC76121  Helianthus bolanderi G. F. Hrusa 1997-8-5 14066 Butte Sierra Nevada. Grown in Woodland. Magalia. Immed. N of Magalia Reservoir in N hillside above Little Butte Creek. Accessed off Holmwood Rd. Comment
  JEPS87516  Hemizonella minima Lowell Ahart 1993-7-29 7114 Butte about 2 1/2 mi ne Bald Mountain (about 6 1/2 air mi ne of Stirling City) 1584 Comment
  UC897728  Hemizonia congesta subsp. luzulifolia A. A. Heller 1916-9-9 12653 Butte near Dunham Comment
  CHSC82423  Herniaria hirsuta subsp. hirsuta Lowell Ahart 2002-5-7 9628 Butte High banks of a pond, at the beginning of a southeast branch of Schirmer Ravine, about 50 yards east of the pond on the east side of Cherokee Road, North Table Mountain, about 4 miles (air) north of Oroville. 228 Comment
  OBI74994  Hesperocyparis macnabiana Hannah M. Fugle 2011-1-17 4 Butte Magalia, ca 250 ft E of Coutelenc rd, 0.1 mi up Coutelenc rd from Skyway rd 762 Comment
  CAS-BOT-BC176000  Hesperolinon californicum Lowell Ahart 1988-4-29 5962 Butte Near the ditch which was part of the Honcut Flume, on the Joie Osgood Ranch, about 2 miles north and 2 1/2 miles east of Honcut, about 12 miles south-east of Oroville 76 Comment
  CHSC11042  Hesperolinon californicum Lowell Ahart 1968-5-4 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC51863  Heterocodon rariflorum L. P. Janeway; R. A. Schlising 1988-7-1 2925 Butte Near a small lake ca 1.2 mi W of Butte Cr House. 1813 Comment
  JEPS116097  Heterocodon rariflorum Lowell Ahart 2009-5-15 15699 Butte About 60 yards northwest of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 2/3 mile (air) west of Highway 32, about 10 miles northeast of Chico 267 Comment
  SEINET10460697  Heterocodon rariflorum Taylor 1978-7-21 Taylor 1828 Butte On south side of Orovile-Quincy Highway along creek in meadow, about 14 miles north of Lake Madrone 1463 Comment
  SEINET7714837  Heterocodon rariflorum Unknown Butte Chico Comment
  CHSC38643  Heteromeles arbutifolia Vernon Oswald 1983-6-9 656 Butte Upper Bidwell Park, Chico, near Parking Area R (2.3 mi e of the power lines). 228 Comment
  CHSC84637  Heteromeles arbutifolia Matt Quinn 2001-3-6 14 Butte Along Green Gate Road (10-mile House Road) on north facing slope on Big Chico Creek Canyon. Approximately 1/4 mile downslope from Highway 32. 365 Comment
  POM91572  Heteromeles arbutifolia C. C. Bruce 1897-06 1795 Butte [No location information provided.] Comment
  CHSC43243  Heterotheca grandiflora Lowell Ahart 1987-9-24 5905 Butte Near the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 274 Comment
  SFV1580  Heuchera micrantha M. L. Vincent 1962-4-18 209 Butte Near Feather River at Hells Town. Comment
  SD5139  Hieracium albiflorum E. B. Copeland 1930-7-16 Butte Jonesville. 1600 Comment
  CHSC38036  Hirschfeldia incana R. E. Preston 1982-11-13 367 Butte At roadside, Nelson Rd, ca. 100 yds w of Butte Creek, ca. 4 mi w of Nelson. 30 Comment
  CHSC40439  Hirschfeldia incana Lowell Ahart 1985-7-24 5157 Butte At the Generator, at the Forbestown Res., about 4 1/2 miles north-east of Forbestown. 350 Comment
  RSA483122  Hirschfeldia incana L. Ahart, P. Ahart 1984-6-10 4689 Butte Along edge of a new subdivision road 1 mile SE of Hurleton, 1/12 mile E of Oak Grove Cemetery, 10 miles E of Oroville. 500 Comment
  CHSC959  Hoita orbicularis R. M. Staley 1952-7-15 Butte Paradise. 548 Comment
  CHSC44570  Holcus lanatus Lowell Ahart 1979-6-9 1930 Butte East of Kunkle Creek, about 2 miles south-east of Paradise. 457 Comment
  RSA718739  Holcus lanatus L. Ahart 2006-7-25 13056 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
  CAS-BOT-BC281254  Hordeum brachyantherum subsp. brachyantherum Lowell Ahart 1983-6-26 4154 Butte Along Ponderosa Way, ca. 2.5 mi. E of where Ponderosa Way crosses the E Fork of Canyon Creek, ca. 15.5 mi. NE of Oroville 600 Comment
  CHSC109604  Hordeum brachyantherum subsp. brachyantherum Lowell Ahart 2012-5-14 18045 Butte A little east of Table 7, on the south side of Big Chico Creek, north of the paved road, northeast of Cedar Grove, Lower Bidwell Park, Chico. 70 Comment
  SEINET10968248  Hordeum depressum Mary Susan Taylor 1978-5-7 Taylor 1598 Butte In and around Richvale vernal pool area, ca. 20 mi S of Chico, on W side of Hwy 99; Valley Grassland. 30 Comment
  CHSC101672  Hordeum marinum subsp. gussoneanum Lowell Ahart 2009-4-26 15637 Butte On the westside of Guardians Trail, just south of Pine Trail, Upper Bidwell Park, about 3/8 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  UC1132515  Hordeum marinum subsp. gussoneanum C. G. Albertus 1933-5-29 7 Butte 1 1/2 mi n Wick; Chico Quad. Comment
  CHSC8217  Hordeum vulgare D. McClain 1969-5-1 71 Butte 5 ft. s.w. of Highway 99E, 6 1/2 mi. s. of Chico. 54 Comment
  RSA451653  Horkelia elata L. Ahart, P. Ahart 1984-5-28 4647 Butte On a large road cutbank along Hwy 40, now called Dark Canyon Rd, ca. 2 mi E of Old Yankee Hill, ca 16 mi NE of Oroville. 450 Comment
  POM275226  Horkelia fusca subsp. parviflora Lyman D. Benson 1932-7-28 3977 Butte First summit, Oroville-Quincy. Sierra Nevada Range, Feather River watershed. 1829 Comment
  CHSC86587  Horkelia tridentata subsp. tridentata L. P. Janeway; John Hunt 2003-6-13 7827 Butte Northern High Sierra Nevada. North side of South Fork Feather River arm of Lake Oroville, 280 m east of the north end of Enter-prise Bridge. 280 Comment
  CHSC60978  Hosackia oblongifolia Lowell Ahart 1993-6-26 7009 Butte On the north side of the dirt road, about 1/4 mile west of Lost Creek Reservoir. Meadow. 1036 Comment
  CHSC36515  Hosackia stipularis var. ottleyi L. Ahart 1982-6-1 3530 Butte Above road, ca. 1/8 mi n of jct of Lower Forbestown Rd and Ponderosa Way, along Ponderosa Way, ca. 5 mi w of Forbestown. 700 Comment
  UCD38749  Hypericum Beecher Crampton 1957-9-17 4615 Butte 5 miles northwest of Biggs, Biggs Rice Experiment Station. Comment
  CAS-BOT-BC410220  Hypericum concinnum Lowell Ahart 1983-6-21 4059 Butte Along Bloomer Hill Road, 1/8 mile west of the Oroville Quincy highway, 1 1/4 miles south of the Berry Creek School, north-east of Oroville. Section 5. 400 Comment
  CAS-BOT-BC410221  Hypericum concinnum Lowell Ahart 1989-5-23 6231 Butte along the edge of a new subdivision road, 1/4 mile east of Dunstone Drive, about 1/2 mile north of Bangor Park Road, west of Bangor. 76 Comment
  JEPS93795  Hypericum concinnum Vernon H. Oswald 1998-7-1 9244 Butte along spur road intersecting Rim Road 4.1 mi n of Jarbo Gap (1 air mi w of Pulga and 0.4 mi w of Rim Road) 853 Comment
  CAS-BOT-BC410227  Hypericum concinnum Lloyd W. Swift 1932-6-6 68182 Butte Brush Creek R.S., Plumas Forest. 1036 Comment
  CHSC108761  Hypochaeris glabra L. P. Janeway 2011-6-7 10368 Butte Sacramento Valley. Along Nelson Ave 1.0 road km west of its bridge over Thermalito Forebay, about 5.7 air km west of Oroville. Weedy edge of road side drainage. 99 Comment
  POM195674  Ipomopsis aggregata subsp. formosissima E. B. Copeland 1929-7-24 394 Butte Jonesville. 1550 Comment
  POM220120  Ipomopsis aggregata subsp. formosissima H. F. Copeland 1928-8-14 451 Butte Ridge above Jones Creek, neighborhood of Jonesville Comment
  CAS-BOT-BC133563  Iris hartwegii Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  CAS-BOT-BC133564  Iris hartwegii Mrs. C. C. Bruce 1898-5-1 2408 Butte Doe Mill Comment
  RSA135944  Iris hartwegii Lee W. Lenz, E. K. Balls 1955-5-13 20697 Butte 7 miles northeast from Pentz Trading Post on road to U.S. Highway 40 alt. from Oroville-Magalia road 579 Comment
  SEINET12046587  Iris hartwegii Unknown 1977-1 45 Butte ca 3 ft. to E side of Vilas Rd. and 0.3 mi NE of jct of Cohasset Hwy and Vilas Rd., Cohasset 945 Comment
  CHSC90017  Iris macrosiphon Peggy Fain 1991-4-6 11 Butte N. side Richardson Springs Road ca. 4 km. from intersection with Cohasset Highway. 152 Comment
  CHSC30989  Isoetes nuttallii M. S. Taylor 1980-3-15 2382 Butte Ca. 1/4 mi s of Pentz rd, ca. 1/8 mi e of Hwy 99, ca. 15 mi s of Chico. 54 Comment
  CHSC46323  Isoetes nuttallii Lowell Ahart 1989-5-23 6268 Butte In Dutch Ravine, about 1/8 mile north of Swedes Flat Road, about 1 1/2 miles east of the Oroville Bangor Highway, north of Bangor. 426 Comment
  CHSC49824  Isoetes nuttallii Vernon Oswald; Lowell Ahart 1990-4-9 4158 Butte Feather Falls on Fall River near its junction with the Middle Fork of Lake Oroville. 548 Comment
  CHSC82291  Isolepis cernua Lowell Ahart 2002-4-24 9534 Butte Vernal pools and swales, in a field, on the east side of Lone Tree Road, about 1 1/8 miles north of Cox Lane, about 3 miles (air) southwest of Palermo, about 7 miles (air) south of Oroville. 35 Comment
  CHSC46474  Isolepis setacea Vernon Oswald 1989-6-19 3809 Butte Feather Falls-Cascade Rd, at the 1 mi paddle marker ne of Feather Falls. 1005 Comment
  JEPS114774  Isolepis setacea Lowell Ahart 2008-7-23 15149 Butte On the north edge of the South Fork of the Feather River, about 10 yards east of where Sucker Creek enters the South Fork of the Feather River, below the high water line of Lake Oroville, about 1/4 mile west of the Ponderosa Dam 258 Comment
  HSC68033  Juglans nigra J. P. Smith, J. O. Sawyer 1973-4-14 6062 Butte Rock Rd., 1 mi. W of Cohasset Rd. near Chico Comment
  CHSC94561  Juncus acuminatus Lowell Ahart 2006-9-13 13326 Butte South edge of the North Fork of the Feather River, about 100 yards west of the Cresta Power House, north side of Highway 70, about 2 3/4 miles northeast of Pulga, about 23 miles (air) northeast of Oroville. 437 Comment
  JEPS114976  Juncus balticus subsp. ater Lowell Ahart 2008-6-13 14815 Butte East of a 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 311 Comment
  SEINET11787691  Juncus bufonius J. D. Jokerst 1982-1 1539 Butte Grey Lodge N of and adjacent to Rutheford Rd. ca 100 m W of Pennington Rd Comment
  CHSC38917  Juncus bufonius var. bufonius Vernon Oswald 1983-6-7 646 Butte Upper Bidwell Park, Chico, on the north slope near the head of the stream which crosses Upper Park Rd. 0.5 mi e of the power lines. 198 Comment
  CHSC61517  Juncus bufonius var. bufonius Lowell Ahart 1993-6-20 6992 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC82417  Juncus bufonius var. bufonius Lowell Ahart 2002-5-7 9633 Butte High banks of a pond, at the beginning of a southeast branch of Schirmer Ravine, about 50 yards east of the pond on the east side of Cherokee Road, North Table Mountain, about 4 miles (air) north of Oroville. 228 Comment
  CHSC97381  Juncus bufonius var. bufonius Paul Maslin 2006-1-1 35 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). Growing on disturbed soil at edge of Chico Canyon Road. UTM: 10609754E 4410048N. 246 Comment
  JEPS103391  Juncus bufonius var. bufonius Lowell Ahart 2002-5-7 9633 Butte High banks of a pond, at the beginning of a SE branch of Schirmer Ravine, ca 50 yards E of the pond on the E side of Cherokee Road, North Table Mountain, ca 4 miles (air) N of Oroville. 228 Comment
  JEPS113863  Juncus bufonius var. bufonius Lowell Ahart 2007-6-3 13970 Butte West of the bridge across Concow Creek, west side of Jordan Hill Road, about 1 1/2 miles (air) southwest of Concow Reservoir 415 Comment
  CHSC27063  Juncus bufonius var. congestus Lowell Ahart 1978-5-1 1682 Butte Peter Ahart Ranch, Honcut. On the bottom of a swale. 50 Comment
  CHSC44523  Juncus bufonius var. congestus Lowell Ahart 1988-5-15 6005 Butte On the south side of Oroville Dam Boulevard, east of McDonald's, Oroville. 42 Comment
  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
  JEPS113833  Juncus effusus subsp. pacificus Lowell Ahart 2007-7-2 14248 Butte On the north side a water ditch, about 30 yards south of Oroville Dam Boulevard, about 1/4 mile southwest of the old overlook, about 4 miles (air) northeast of Oroville 166 Comment
  CHSC107583  Juncus effusus var. pacificus Lowell Ahart 2011-8-23 17646 Butte In the large meadow, Pinkard Creek flows through the meadow, east of the corral, about 1 mile north of Lost Creek Reservoir Dam, about 4 miles (air) northeast of Clipper Mills. Meadow in Yellow Pine Forest. 1133 Comment
  CDA39195  Juncus effusus var. pacificus L. H. Heinricks 1964-6-4 s.n. Butte T.M. Morrill property, 405 Circle Drive, Oroville. 0 Comment
  CHSC94611  Juncus ensifolius Lowell Ahart 2006-9-13 13317 Butte South edge of the North Fork of the Feather River, about 100 yards west of Mill Creek, 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
  UCD135933  Juncus exiguus Barbara L. Wilson; Lowell Ahart, Lawrence Janeway, Peter F. Zika 2010-8-5 16765 Butte along Mooreville Ridge Road (Forest Service Road 20N09) near junction with Pinkard Creek Road above Lost Creek Reservoir. 1149 Comment
  CHSC39402  Juncus howellii L. Ahart 1983-8-16 4314 Butte In a small meadow, near Bull Hill Rd, ca. 3.5 mi south of Butte Meadows. On bottom of small stream. 1600 Comment
  CHSC59021  Juncus howellii Lowell Ahart 1992-7-26 6840 Butte Near a small stream, on the south side of Coon Hollow, about 1/2 mile north of the Carr Mine, about 2 (air) miles south of Snow Mountain. 1737 Comment
  JEPS122148  Juncus howellii Lowell Ahart 2014-8-13 19705 Butte About 110 yards east of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  SEINET10472447  Juncus howellii Lowell Ahart 1983-9-17 Ahart 4427 Butte T22N R4E se section 31. Ca. 1/8 mi ne of Kunkle Reservoir, south of Paradise. Foothill Woodland; 600 m. 600 Comment
  UCSB63740  Juncus howellii Ahart, Lowell 1998-6-30 Butte T20N, R4E, northeast 1/4 Section 17; west of the cow chute on the west side of Cherokee Road; North Table Mountain; about 7 miles (air) north of Oroville 403 Comment
  CHSC107563  Juncus laccatus Lowell Ahart 2011-8-23 17647 Butte In the large meadow, Pinkard Creek flows through the meadow, east of the corral, about 1 mile north of Lost Creek Reservoir Dam, about 4 miles (air) northeast of Clipper Mills. 1133 Comment
  UCD169927  Juncus laccatus Lowell Ahart 2011-8-19 17641 Butte About 1/2 mile north of the Lost Creek Reservoir Dam, about 4 1/2 miles (air) north of Clipper Mills. Along the wet road gutter, on the south side of a good forest road. 1266 Comment
  SEINET11787469  Juncus leiospermus Unknown 1984-1 4589 Butte ca 0.5 mi N of Kunkle Reservoir, along Kunkle Cr, ca 2 mi S of Paradise, E side of Pentz-Magalia Hwy 600 Comment
  CHSC31910  Juncus leiospermus var. ahartii L. Ahart 1974-4-24 423 Butte In small vernal pool. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC113242  Juncus leiospermus var. leiospermus Lowell Ahart 2014-4-20 19381 Butte About 1/4 mile northwest of parking area on the west side of Cherokee Road, about 7 miles (air) north of Oroville. 392 Comment
  JEPS110152  Juncus leiospermus var. leiospermus Lowell Ahart 2006-5-8 12581 Butte On the bottom of a tire track through a marshy area, about 20 yards east of Cherokee Road, about 100 yards northeast of the large unimproved parkin area, North Table Mountain, about 7 miles (air) north of Oroville 377 Comment
  JEPS117321  Juncus leiospermus var. leiospermus Lowell Ahart 2010-5-16 16682 Butte About 1/4 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville 375 Comment
  JEPS122155  Juncus leiospermus var. leiospermus Lowell Ahart 2014-5-2 19422 Butte About 1/2 mile north of the Improved Parking Area and Cherokee Road, North Table Mountain, about 8 miles (air) north of Oroville. Comment
  SD121520  Juncus leiospermus var. leiospermus Barbara Ertter, Jeffrey L. Strachan, Lowell Ahart 1980-5-7 3309 Butte North Table Mountain, ca. 5 airmiles north of Oroville, wet soil along streamlet trodden by cattle and near parking area, top of basaltic butte. 395 Comment
  UC398899  Juncus nevadensis E. B. Copeland 1929-7-29 348 Butte above Jonesville (near Butte Creek House) 1750 Comment
  SEINET11787693  Juncus nevadensis R. A. Schlising, Jokerst, J. D. 1982-1 1653 Butte easternmost pond on bench along S edge of Coon Hollow 1707 Comment
  CDA14052  Juncus occidentalis G. F. Hrusa, T. D. Wilfred 1997-5-1 13700 A Butte Sierra Nevada; NE side of upper end of Paradise Lake. Where last tributaries from E enter. Old growth Douglas-fir/mixed hardwoods. Colony in disturbed area on moist lakeshore. Perennial. Comment
  CHSC43792  Juncus orthophyllus Vernon Oswald; Lowell Ahart 1987-7-1 3086 Butte Cluster of 3 snow lakes ca. 3 mi (air) s of Humbug Summit, 0.5 mi w of the Butte-Plumas county line, ca. 5.5 mi (air) se of Jonesville. Along the streamlet draining the small lake northward into Butte Creek. 1935 Comment
  CHSC31907  Juncus oxymeris L. Ahart 1977-7-19 1482 Butte Along the edges of North Honcut Creek, Peter Ahart Ranch, Honcut. 50 Comment
  CHSC38923  Juncus patens Vernon Oswald 1983-5-18 506 Butte Upper Bidwell Park, Chico, 75 ft s of Upper Park Rd. and 200 ft e of Parking Area I (0.6 mi e of the power lines). 103 Comment
  JEPS98992  Juncus patens Lowell Ahart 2001-7-6 8881 Butte West of a large pond, large overflow area on the east side of the Sacramento River, NW of Parrott Landing, about 1 mile SE of Ord Ferry, about 2 miles SE of Ord Bend, about 12 miles (air) SW of Chico. 32 Comment
  JEPS118353  Juncus triformis Lowell Ahart 2011-7-9 17571 Butte Southeast edge of a large open bare granite area, about 3/8 mile northeast of Little Bald Rock, about 2 miles (air) southeast of Brush Creek, about 15 miles (air) northeast of Oroville 974 Comment
  CHSC44526  Juncus trilocularis Lowell Ahart 1988-6-29 6096 Butte Along a small wash south of Bean Creek Road, about 1/2 mile southeast of Little Bald Rock. 975 Comment
  CHSC99819  Juncus trilocularis Lowell Ahart 2008-6-13 14814 Butte Bottom of a small mined wash, about 50 yards west of the cemetery, about 150 yards north of Oregon Gulch, about 10 miles (air) northeast of Oroville. 324 Comment
  CHSC47573  Juncus uncialis Lowell Ahart 1978-4-10 1626 Butte On the bottom of vernal pools and swales, Peter Ahart Ranch, about 2 1/4 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC47576  Juncus uncialis Lowell Ahart 1982-5-9 3428 Butte Around the edges of a large vernal pool in one of the farmed fields, Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  JEPS118347  Juncus uncialis Lowell Ahart 2011-5-2 17347 Butte Open pasture fields, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville 32 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
  SEINET194312  Juniperus californica A. A. Heller 1939-12-10 15486 Butte Near rd above a mi from jct w/ Oroville Rd 137 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
  POM193328  Kelloggia galioides E. B. Copeland 1930-8-10 477 Butte Jonesville. 1550 Comment
  UC889317  Kelloggia galioides A. A. Heller 1917-7-29 12870 Butte summit above Jonesville 2133 Comment
  CDA42980  Kickxia elatine L. Ahart 2013-11-29 19293 Butte Below the high water line of Lake Oroville, about 250 yards west of the old road, about 3 1/2 miles (air) northeast of Oroville Dam. Comment
  CHSC102712  Kickxia elatine Lowell Ahart 2009-7-3 15991 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
  JEPS95733  Kickxia elatine Lowell Ahart 1995-8-19 7611 Butte 12 mi S of Oroville (Peter Ahart Ranch; E side of Honcut Creek; 1 mi N and 2 3/4 mi E of Honcut) 36 Comment
  JEPS95924  Kickxia elatine Lowell Ahart 1999-8-13 8132 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
  CHSC4140  Kumlienia hystricula R. Carter 1966-4-28 379 Butte Found in Feather R. Canyon 11 mi. NW of Butte-Plumas Co. line along N side of Hwy 70. On cliff above road just S of water fountain. 701 Comment
  UCR183348  Kyllinga brevifolia T. C. Fuller 1962-12-7 9952 Butte 282 Chico Rd, Oroville 52 Comment
  JEPS115721  Lactuca saligna Lowell Ahart 2009-8-3 16254 Butte On the east side of Ten Mile House Road, Upper Bidwell Park, about 3/4 miles (air) west of Highway 32, about 10 miles northeast of Chico 236 Comment
  UCD133543  Lactuca serriola A. A. Heller 1916-9-9 12654 Butte near Durham. Comment
  CHSC11371  Lamium amplexicaule Lowell Ahart 1962-3-10 Butte Peter Ahart Ranch, Honcut. 45 Comment
  SFV3166  Lamium amplexicaule M. L. Vincent 1961-3-26 30 Butte Sierra Nevada Honey Run Road, near covered bridge over Butte Creek. Southwest of Paradise. 110 Comment
  CHSC277  Lasthenia californica J. Turner 1930-3-25 Butte Chico Creek Canyon. 152 Comment
  CHSC35653  Lasthenia californica R. E. Preston 1982-4-7 237 Butte W side of Lake Oroville, ca. 1/2 mi ne of Lime Saddle Powerhouse, ca. 4.5 mi se of Paradise. 304 Comment
  CHSC3997  Lasthenia californica J. W. Cherry 1967-3-26 Butte On either side of Bidwell Park road, .3 mi. e. of Salmon Hole. 170 Comment
  CHSC45687  Lasthenia californica Vernon Oswald 1983-4-4 265 Butte Upper Bidwell Park, Chico, on the north rim ca. 2 mi e of the power lines. 390 Comment
  JEPS107753  Lasthenia californica Lowell Ahart 2005-5-11 11791 Butte Above upper margins of 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
Read comments
Jan 19 2011
  SD111946  Lasthenia fremontii B. Ertter, Jeff Strachan 1980-5-5 3247 Butte Peter Ahart Ranch, 1.5 miles northeast of Honcut between Oroville and Marysville. 29 Comment
  SEINET10475352  Lasthenia fremontii Lowell Ahart 1983-5-12 Ahart 3974 Butte Along the power line, ca. 0.5 mi ne of jct of Hwy 99 and Pentz Rd, ca. 16 mi s of Chico. Valley Grassland; 65 m. 65 Comment
  JEPS107751  Lasthenia glaberrima Lowell Ahart 2005-5-14 11810 Butte In a rice field, Peter Ahart Ranch, about 2 miles north and 1/4 mile east of Honcut, about 12 miles (air) southeast of Oroville 25 Comment
  CHSC46249  Lasthenia glabrata subsp. glabrata V. Oswald; L. Janeway 1989-4-17 3737 Butte Gridley-Colusa Hwy just east of Butte Creek. On the s edge of the road and in adjacent field. 18 Comment
  JEPS108548  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
  CHSC855  Lathyrus jepsonii var. californicus T. Morgue 1932-4-22 Butte Durham-Chico road. 57 Comment
  JEPS119626  Lathyrus latifolius Lowell Ahart 2012-6-14 18196 Butte Annie's Glen, Lower Bidwell Park, Chico. Comment
  SEINET12164065  Lathyrus nevadensis Unknown 1980-1 19 Butte ca .6miN of Lumpkin Rd, ca .2miW of Nutmeg Crk tributary, ca 2yds E of a dirt rd see comments 732 Comment
  UC15343  Lathyrus nevadensis var. nevadensis Mrs. R. M. Austin Jun 1898 Butte Forest Ranch Comment
  UC725530  Lathyrus nevadensis var. nevadensis A. A. Heller 1939-4-10 15373 Butte Comment
  CHSC44203  Lathyrus sphaericus Vernon Oswald 1988-5-27 3343 Butte 5782 Kibler Rd, Paradise. 585 Comment
  CAS-BOT-BC213283  Lathyrus sulphureus Lowell Ahart 1980-4-21 2100 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC213284  Lathyrus sulphureus Lowell Ahart 1983-7-20 4227 Butte About 0.25 mile west of Milsap Bar, about 25 miles northeast of Oroville 500 Comment
  CDA13276  Lathyrus sulphureus G. F. Hrusa, T. D. Wilfred 1996-7-9 13124 Butte Plumas National Forest; Summit of N ridge above Jordan Creek. Nr. Jordan Creek headwaters S of Hwy 162 near Roger's Cow Camp. Comment
  UCD106434  Lathyrus sulphureus A. A. Heller 1915-4-20 11846 Butte 3 miles above Centerville in the Sierra foothills. Comment
  CHSC38497  Lathyrus tingitanus Vernon Oswald 1983-5-15 496 Butte Upper Bidwell Park, Chico, on the s dike of Horseshoe Lake. 100 Comment
  CAS-BOT-BC321757  Layia fremontii N. Wynne; M. Peckham; J. Bamesberger 1914-3-28 54 Butte Table Mountain, Cherokkee Rd., approx. 2 miles E of Hwy 70. Comment
  UC179643  Layia platyglossa A. A. Heller 1914-4-29 11331 Butte 12 mi n of Chico Comment
  CHSC66460  Leersia oryzoides Vernon H. Oswald; Lowell Ahart 1996-6-10 7760 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Near the center of the W side of Tract 7.1, Sanctuary 1. 33 Comment
  JEPS87140  Leersia oryzoides Lowell Ahart 1992-9-9 6919 Butte about 1/2 mi se of Kunkle Reservoir (below the high water line of Lake Oroville); Lake Oroville 243 Comment
  JEPS94891  Leersia oryzoides Lowell Ahart 1998-9-11 8056 Butte about 7 air mi n Oroville (w of the cattle chute on the w side of Cherokee Road); North Table Mountain, Cherokee Road 403 Comment
  CHSC93791  Lemna minuta Lowell Ahart 2006-5-26 12639 Butte In a drain ditch, on the south side of Sheldon Avenue at the intersection with Larkin Road, about one mile south of Gridley Road, about 2 miles (air) southeast of Gridley. 28 Comment
  JEPS120767  Lemna minuta Lowell Ahart 2013-9-20 19063 Butte About 20 yards north of Hamilton Road, about 1/8 mile east of Riceton Highway, about 1 mile southeast of the Rice Experiment Station. Comment
  CHSC106885  Leontodon saxatilis subsp. longirostris Lowell Ahart 2011-5-1 17335 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
  JEPS94431  Leontodon saxatilis subsp. longirostris Lowell Ahart 1997-10-20 7923 Butte 3 air mi nw of Sly Creek Reservoir Dam (on w side of sharp bend in South Fork of Feather River, about 1/4 mi n of the bridge across the river, about 3/4 mi n of Golden Trout Crossing); South Fork of the Feather River 914 Comment
  CHSC102408  Leontodon taraxacoides subsp. longirostris Lowell Ahart 2009-6-19 15945 Butte On dry soil, on the south 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
  RSA715890  Lepidium didymum L. Ahart 2005-4-2 11685 Butte Overflow area on the E side of the Sacramento River, NW of Parrott Landing. About 1 mile SE of Ord Ferry. About 2 miles SE of Ordbend. About 12 miles (air) SW of Chico. 26 Comment
  CHSC85395  Lepidium nitidum John Dittes; Josephine Guardino 1992-5-7 484 Butte Cascade Range Foothills; ca. 5.1 air-miles northeast of Chico City Hall, ca. 1.3 air-miles east by southeast of Horseshoe Lake, ca. 1.2 air-mile west of Hwy 32; north of tributary of Dead Horse Slough, east of Canyon Oaks Golf Course. 176 Comment
  UC856525  Lepidium nitidum A. A. Heller 1914-4-11 11274 Butte 8 mi n Oroville Comment
  CAS-BOT-BC89883  Lepidium nitidum Junea Kelley 1920-4-24 s.n. Butte Los Verjils. Comment
  CHSC38421  Lepidium nitidum var. nitidum Vernon Oswald 1983-2-9 66 Butte Upper Bidwell Park, Chico, near the Rod and Gun Clubhouse at Horseshoe Lake. 103 Comment
  SEINET10448291  Lepidium perfoliatum Mary Susan Taylor 1982-4-28 Taylor 4363 Butte T17N R1E se/sw sec 13. Pennington qud. Graylodge Wildlife Refuge, n side of Rutherford Rd, ca. 1/2 mi w ofits jct with Pennington Rd, ca. 12 mi sw of Gridley. 70 ft. 21 Comment
  SEINET10907332  Lepidium perfoliatum Lowell Ahart 1985-4-1 Ahart 4874 Butte Along Table Mountain Boulevard, near the Cambell Overflow, a little south of the inter- section of Highway 70 and 149, about 7 miles north of Oroville. Comment
  CHSC102965  Lepidium pinnatifidum Lowell Ahart 2009-7-4 16001 Butte On the south side of the paved road, southeast of parking lot 4, Gray Lodge Waterfowl Management Area, about 6 miles (air) southwet of Gridley. 21 Comment
  CHSC35634  Lepidium strictum R. E. Preston 1982-4-4 217 Butte Dirt road on dike, Gray Lodge State Wildlife Area, ca. 0.3 mi w of Headquarters. 20 Comment
  CHSC39595  Lepidium strictum Lowell Ahart 1983-4-10 3929 Butte Along the edges of dirt roads, about 1 1/2 miles north-east of Highway 99 and Pentz Road. 100 Comment
  CAS-BOT-BC273954  Leptochloa fusca subsp. fascicularis A. A. Heller 1919-8-13 13354 Butte Between Nelson and Richvale Comment
  CHSC51515  Leptochloa fusca subsp. fascicularis M. Bailey 1990-10-16 417 Butte NW side of fence behind fire training area, Butte College campus. 91 Comment
  LA11479  Leptochloa fusca subsp. fascicularis H. S. Yates; 1936-8-19 6126 Butte 3 mi NNW of Nelson 30 Comment
  UCD72995  Leptosiphon bicolor 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
  CHSC29379  Leptosiphon ciliatus R. A. Schlising; R. Banchero 1980-6-12 3686 Butte 4.6 mi s of Butte/Tehama County line on Hwy 32; roadside. Comment
  CHSC90798  Leptosiphon ciliatus Lowell Ahart 2005-5-2 11765 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
  CHSC9705  Leptosiphon ciliatus Nancy Mosman 1971-7-11 67 Butte In meadow ca. 10 ft from s side of Humboldt Road and ca. 0.8 mi e of Butte Meadow Ranger Station. 1371 Comment
  POM364518  Leptosiphon ciliatus L. Ahart, P. Ahart 1984-5-28 4645 Butte About 1 mi NE of West Branch Bridge, ca. 2 mi S. of Old Yankee Hill, ca. 16 mi. NE of Oroville 450 Comment
  CHSC106865  Leptosiphon filipes Lowell Ahart 2011-4-28 17332 Butte Along trail in the Disc Golf Area, about 130 yards north of the entrance to the Disc Golf Area, about 40 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 398 Comment
  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
  POM74989  Leptosiphon filipes C. C. Bruce 1897-04 1968 Butte [name of locality illegible] Comment
  CHSC25325  Lessingia nana M. Hayes; Warner 1977-8-29 52 Butte Next to Firing Range in Upper Bidwell Park, Chico. 80 Comment
  JEPS13267  Lessingia nana Rimo Bacigalupi with G. T. Robbins 1955-7-15 5304 Butte about 4 mi above the Hooker Oak (just above Big Chico Creek); just above Big Chico Creek 121 Comment
  CAS-BOT-BC341793  Lessingia nemaclada M. S. Taylor 1979-7-22 2170 Butte Pulga bridge, on n side of trail leading from ne side of Pulga bridge, over Hwy 70, ca. 27 mi n of Oroville 487 Comment
  JEPS120560  Lessingia nemaclada L. P. Janeway 2012-10-11 11072 Butte Northern High Sierra Nevada. Plumas National Forest; southwestern end of Rocky Ridge, 0.8 km west of Ponderosa Way / Rim Road, near high-voltage power lines. Comment
  CHSC3416  Leucojum aestivum Judy Potter 1966-3-9 Butte Chico State College, Chico. Comment
  CHSC51868  Leucothoe davisiae L. P. Janeway 1988-7-2 2939 Butte Marsh/mdw at upper reach of Brush Cr, ca 1.5 mi S of 'town' of Brush Creek. 952 Comment
  SEINET10874388  Leucothoe davisiae Mary Susan Taylor, Lowell Ahart 1981-8-15 Taylor 4179 Butte T25N R4E sw 1/4 sw 1/4 sec. 33. Paradise NE quad. Both sides of the Skyway 1.8 mi S of Inskip. Yellow Pine Forest. 4100 ft. 1250 Comment
  CHSC11356  Lewisia rediviva Lowell Ahart 1971-4-10 Butte Table Mountain, Oroville. 457 Comment
  CAS-BOT-BC509476  Lilium kelleyanum Mrs. J. H. Morrison 1932-7-4 s.n. Butte Mountains above Durham Comment
  CHSC62828  Limnanthes alba Ella Icard 1893-4-1 Butte Comment
  JEPS19590  Limnanthes alba Harry A. Dutton 1921-4-25 Butte sw Oroville Comment
  UCR224690  Limnanthes alba subsp. alba Dena Grossenbacher, Joel Smith 2009-5-9 986 Butte On south shore of Wyandotte Lake along Forbes Town Road, 2.0 miles east of Hwy 62 427 Comment
  UCD169373  Limnanthes alba subsp. alba T. W. Henrich 2004-4-12 s.n. Butte Meghdadi Property' in southeast Chico; about 0.5 km north of Doe Mill Road, about 0.5 km east of south end of Potter Road, and 0.25 km west of old stone fence. Comment
  CHSC42484  Limnanthes alba subsp. versicolor Lowell Ahart 1987-5-12 5632 Butte South of Lumpkin Ridge Road, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 1280 Comment
  UCSB24545  Limnanthes douglasii Orr, K. 1966-4-3 Butte 2 miles south of Midway Rd. on Ord-Chico Hwy 60 Comment
  HSC43087  Limnanthes douglasii subsp. rosea Maralyn O'Meara 1974-4-20 292 Butte Table Mtn. 305 Comment
  HSC32645  Limnanthes douglasii subsp. rosea Gary S. Lester 1974-4-20 95 Butte Skyway Blvd., 1 mi. E of US 99 61 Comment
  UC1397268  Limnanthes floccosa subsp. californica R. Ornduff 1968-4-27 6885 Butte 1 mi w Oroville (on Hwy 70) Comment
  CHSC72401  Limnophila X ludoviciana Vernon H. Oswald; Lowell Ahart, Barbara Ertter 1998-10-22 9674 Butte Rice field at the northeast corner of Hamilton and Riceton roads, Rice Experiment Station northwest of Biggs. 30 Comment
  CHSC3959  Linanthus dichotomus M. Lee 1967-4-10 18 Butte Along roadside 2 1/2 mi. E. of Hwy 99E on Pentz Rd. Pentz. 136 Comment
  POM73994  Linanthus dichotomus subsp. meridianus C. C. Bruce 1897-04 1967 Butte Near Deadwood Comment
  SEINET12319548  Linanthus filipes Unknown 1978-1 2 Butte 3 mi NE of Butte Creek bridge between Chico and Paradise Comment
  CHSC92457  Linaria dalmatica subsp. dalmatica Lowell Ahart 2005-11-12 12484 Butte Flat area on the south side of Dark Canyon Creek, about 50 yards south of the train tunnels, west of Dark Canyon Road, about 2 1/2 miles (air) south of Highway 70 at Big Bend Road. 293 Comment
  CHSC44285  Linum lewisii var. lewisii Vernon Oswald 1988-6-14 3383 Butte Rim Rd. or Ponderosa Way (23N06) 0.8 mi se of Concow Rd., ne of Lake Concow. Scattered on a brushy serpentine outcrop. 975 Comment
  SEINET12186145  Linum micranthum Unknown 1985-1 5085 Butte about 2.5 mi NE of Forbestown, roadside to the Forbestown Reservoir 869 Comment
  CAS-BOT-BC111974  Lipocarpha micrantha Lowell Ahart 1974-8-14 s.n. Butte Peter Ahart Ranch, Honcut. Along North Honcut Creek. 150 Comment
  CHSC39399  Lipocarpha micrantha L. Ahart 1983-9-17 4430 Butte Ca. 1/8 mi ne of Kunkle Reservoir, south of Paradise. 600 Comment
  CHSC5969  Liquidambar styraciflua M. MacArthur 1968-6-17 219 Butte Ca. 60 ft. NW of Big Chico Creek by path to bridge N of Dining Hall, Chico State College campus. 60 Comment
  CHSC94275  Listera convallarioides Lowell Ahart 2006-7-16 12988 Butte On the east side of Willow Creek, on the east side of a large meadow and bog, about 200 yards southeast of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1569 Comment
  UC398906  Listera convallarioides E. B. Copeland 1929-7-15 355 Butte Jonesville 1500 Comment
  CHSC4343  Lithocarpus densiflorus Carl Pejsa 1966-5-18 90 Butte Bidwell Park Forestry Station. Comment
  CHSC44350  Lithophragma glabrum Lowell Ahart 1988-3-28 5950 Butte About 1/10 mile south of Lumpkin Ridge Road, about 1 1/2 miles east of Camp 18, about 8 miles east of Feather Falls. 1280 Comment
  SEINET12216579  Lithophragma heterophyllum S. T. Heaston 1982-1 4 Butte ca 1 mi NE of Chico Golf Course Bridge, along N side of Big Chico Creek 122 Comment
  CAS-BOT-BC123106  Lithophragma trifoliatum C. C. (Mrs.) Bruce 1897-4-1 1844 Butte Foothills near Chico Comment
  CHSC393  Logfia filaginoides B. Richardson 1929-4-21 Butte Flats above Chico. 67 Comment
  CHSC86855  Logfia filaginoides L. P. Janeway; John Hunt, Adam Henderson 2003-5-13 7784 Butte Northern High Sierra Nevada. East side of Middle Fork Feather River arm of Lake Oroville, 1.0 km southwest of mouth of Frey Creek. 299 Comment
  CAS-BOT-BC342385  Logfia gallica A. A. Heller 1914-6-2 11148 Butte Hills 8 miles north of Oroville Comment
  SEINET10592054  Lolium temulentum Lowell Ahart 1968-8-5 Ahart 18 Butte Peter Ahart Ranch, Honcut. Valley Grassland. 150 Comment
  CHSC46326  Lomatium caruifolium var. denticulatum Lowell Ahart 1989-5-23 6230 Butte Along the edge of a new subdivision road, 1/4 mile east of Dunstone Drive, about 1/2 mile north of Bangor Park Road, west of Bangor. 76 Comment
  RSA32887  Lomatium dasycarpum subsp. tomentosum A. A. Heller 1939-4-14 15380 Butte Butte County: near Pine Creek, Plentiful in a field along the road E of US 99E, in clay soil Comment
  CHSC109005  Lomatium macrocarpum Lowell Ahart 2012-4-20 17897 Butte Cliffs, below the rim, 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. 256 Comment
  CHSC117002  Lomatium marginatum var. marginatum Lowell Ahart 2016-6-4 20931 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
  CHSC98573  Lomatium marginatum var. marginatum L. P. Janeway; B. Castro 2007-5-6 8970 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
  JEPS104014  Lomatium utriculatum Lowell Ahart 2003-4-10 10067 Butte On the top of cliffs, on the e rim of South Table Mountain, ca 2 1/2 mi (air) n of Oroville. 332 Comment
  SEINET10906779  Lomatium utriculatum Mary Susan Taylor 1982-5-2 Taylor 4392 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
  RSA4160  Lonicera conjugialis E. B. Copeland 1930-6-27 478 Butte Jonesville. 1550 Comment
  CHSC2405  Lonicera hispidula R. Carter 1964-6-15 129 Butte Feather R. Canyon, 3/4 mi. E of Pulga turn-off where Bear Ranch Rd. leaves Hwy. 40A. 609 Comment
  SEINET10970288  Lotus Mary Susan Taylor 1977-6-25 Taylor 1368 Butte Foothill Woodland-Yellow Pine Forest transition zone, on Ponderosa Way betwe en Cohasset and Forest Ranch. 610 Comment
  CHSC21057  Lotus corniculatus M. S. Taylor 1975-6-25 804 Butte Ca. 500 yds w of Mud Creek, ca. 1/2 mi n of Richardson Springs Hotel, ca. 6 mi ne of Chico. 243 Comment
  CHSC103674  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
  SEINET12161433  Lotus humistratus K. D. Johnson 1978-1 12 Butte E side of Cohasset rd, .3miE of Chico Municipal Airport Control Tower. see below 77 Comment
  UC80909  Lotus micranthus R. M. Austin May 1896 702 Butte Little Chico Creek Comment
  SEINET10906967  Lotus micranthus Lowell Ahart 1983-5-13 Ahart 3991 Butte Banks of North Honcut Creek, Peter Ahart Ranch, ca. 3 mi ne of Honcut. Foothill Woodland; 50 m. 50 Comment
  JEPS114722  Lotus nevadensis var. nevadensis Lowell Ahart 2008-5-12 14729 Butte Below the high water line of Lake Oroville, on the east side of Sucker Creek, about 40 yards east of where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile west of the Ponderosa Dam 258 Comment
  UC866486  Lotus nevadensis var. nevadensis A. A. Heller 1917-7-26 12828 Butte Butte Meadows 1402 Comment
  UC392240  Lotus oblongifolius var. oblongifolius E. B. Copeland 1929-7-1 Butte Butte Creek Jonesville 1550 Comment
  SEINET3696861 Image available Lotus purshianus A. A. Heller 1938-7-20 15289 Butte Upper end Snag Lake, 7 miles east of Chaparral 1524 Comment
  SEINET10452009  Lotus purshianus Lowell Ahart, Peter Ahart 1983-7-24 Ahart 4204 Butte T19N R7E sec 6. Ca. 2 mi sw of the Forbestown Reservoir, ca. 3 mi ne of Forbestown. Yellow Pine Forest; 550 m. 550 Comment
  JEPS55747  Lotus purshianus var. purshianus Harry A. Dutton 1921-1 Butte Chico Comment
  RSA769807  Lotus purshianus var. purshianus L. Ahart, John Dittes, Josephine Guardino 2008-11-8 15439 Butte South bank of Lindo Channel, about 50-100 yards west of the diversion structure, north of Hooker Oak, Upper Bidwell Park, Chico 69 Comment
  UC862230  Lotus purshianus var. purshianus A. A. Heller 1916-9-8 12651 Butte e of Chico (Ten-Mile House) Comment
  UCD66039  Ludwigia hexapetala B. J. Grewell; Robert McKee 2006-8-1 06- 31 -LU Butte Oroville Wildlfe Area, Dept of Fish and Game access from Pacific Heights Rd, w. of Hwy 70, e. of Feather River. 28 Comment
  UCD66040  Ludwigia hexapetala B. J. Grewell 2005-10-13 05- 37 -LU Butte Upper Butte Wildlife Area, Little Dry Creek Unit, Dept of Fish and Game, Colusa - Gridley Hwy. 20 Comment
  CHSC111959  Ludwigia palustris Lowell Ahart 2012-6-5 18168 Butte On the strand of the reservoir, north of Beatson Hollow, about 1 3/4 miles northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 6 miles (air) north of Oroville. 295 Comment
  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
  JEPS95993  Ludwigia peploides subsp. peploides Lowell Ahart 1999-9-21 8280 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
  CHSC35656  Lunaria annua R. E. Preston 1982-4-20 243 Butte N bank of Chico Creek, ca. 100 yds w of Warner St bridge, Chico. Comment
  UC726546  Lupinus A. A. Heller 1942-6-16 16512 Butte 3 1/2 mi w Arch Rocks Tunnel; w of Arch Rocks Tunnel Comment
  SEINET10838349  Lupinus Mary Susan Taylor, Vernon H. Oswald 1984-4-4 Taylor 5388 Butte T23N R3E sec 28? S side of Humbug Rd, 3.1 mi W of Nimshew, ca. 10 air mi NE of Chico. Foothill Woodland. Comment
  SEINET10874088  Lupinus albicaulis Mary Susan Taylor 1982-6-24 Taylor 4747 Butte T22N R4E se/se sec 1. Pulga quad. On serpentine on Rocky Ridge, both sides of Ponderosa Way (Rim Rd), 6.1 mi n of Jarbo Gap on Hwy 70, ne of Oroville. 2700 ft. 823 Comment
  CHSC38504  Lupinus albifrons Vernon Oswald 1983-4-1 252 Butte Upper Bidwell Park, Chico, s of the creek and e of the footbridge near the 4th green of the Golf Course. 91 Comment
  JEPS124247  Lupinus albifrons var. albifrons Lowell Ahart 2015-3-21 19957 Butte About one mile south of Oregon City, about 4 1/2 miles north of the intersection of Cherokee Road and Oregon Gulch Road, about 8 miles north of Oroville. Comment
  SEINET7073629 Image available Lupinus andersonii A. G. Vestal 1955-5-21 s.n. Butte About 15.3 miles east of Oroville on the Forbestown Road. UTM Zone 10, 645084mE, 4373885mN. Coordinate datum: NAD27. Comment
  HSC71549  Lupinus bicolor J. P. Smith 1973-3-22 5913 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  CHSC65779  Lupinus bicolor var. tridentatus Vernon Oswald 1996-4-10 7357 Butte Sacramento Valley. Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Common in an equiptment storage lot off of 7 Mile Lane near the S end of Tract 8, Sanctuary 2. 33 Comment
  CHSC7094  Lupinus bicolor var. tridentatus Nancy Wiseman 1969-4-17 Butte 10 yds n of Skyway, 3.8 mi e of Chico. Comment
  JEPS115809  Lupinus bicolor var. tridentatus Lowell Ahart 2009-4-26 15619 Butte In a small open meadow, about 150 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 286 Comment
  CHSC91473  Lupinus grayi L. P. Janeway 2005-6-26 8437 Butte Northern High Sierra Nevada. In young timber plantation along Road 24N13 at Plumas County line; ridge between Lockerman Creek and Cedar Creek. 1305 Comment
  SEINET10483996  Lupinus grayi Mary Susan Taylor 1981-5-29 Taylor 3816 Butte Chino Ridge, ca. 0.5 mi N of 22N31, ca. 3 air mi SE of Pulga. Along trail up ridge; filtered to open light. 853 Comment
  SEINET10452086  Lupinus latifolius Lowell Ahart 1984-6-8 Ahart 4665 Butte At the Ponderosa Dam, ca. 2 mi NW of Forbestown; Yellow Pine Forest; 370 m. 370 Comment
  SEINET10452693  Lupinus latifolius subsp. longipes Mary Susan Taylor, Lowell Ahart 1981-8-16 Taylor 4197 Butte T25 N R5E SW 1/4 sec 29. Pulga NW quad. Jones Meadow, ca. 3 mi S of Philbrook Reservoir, ca. 6 mi NE of Stirling City. Montane Meadow. 6000 ft. 1829 Comment
  CHSC45037  Lupinus latifolius var. columbianus Lowell Ahart 1988-9-4 6184 Butte Near Big Kimshew Creek, the creek crosses a large meadow, about 1 air mile north-east of Jones Meadow. 1920 Comment
  CDA13344  Lupinus nanus G. F. Hrusa, T. D. Wilfred 1996-7-9 13192 Butte Sierra Nevada; along Hwy 162. Near entrance to Rogers Cow Camp. Comment
  CHSC90370  Lupinus nanus Joseph Silveira 1982-4-17 5 Butte 65 m ene of Horseshoe Lake and 80 m n of Big Chico Creek, 4 km ne of Chico. 190 Comment
  UC204550  Lupinus nanus A. A. Heller 1914-5-8 11378 Butte Clear Creek-Paradise grade Comment
  UC726774  Lupinus nanus A. A. Heller 1938-4-23 15046 Butte along the Feather River Highway near the bridge over the <Feather> River e Oroville; along the Feather River Highway nr bridge over river Comment
  CHSC3651  Lupinus nanus var. apricus Robert D. Briggs 1966-3-28 R.- 94 Butte East end of table Mt., 2 miles east of Cherokee. Comment
  CHSC109127  Lupinus nanus var. latifolius Lowell Ahart 2012-3-23 17793 Butte Near large rocks, about 250 yards east of Big Chico Creek, about 150 yards west of Ten Mile House Road, below and north of the old homestead, about 3/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. 215 Comment
  CHSC94029  Lupinus pachylobus R. D. Fischer 2005-4-9 733 Butte Sierra Nevada foothills, adjacent Hwy. 32, below Forest Ranch in the Big Chico Creek Ecological Reserve off Lookout Trail. Plants growing on roadbed of the main Overlook Trail in old refuse pile. 487 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
  CHSC42529  Lupinus polycarpus Lowell Ahart 1987-5-6 5523 Butte Along the road, near the Poe Power House on the North Fork of the Feather River, about 2 miles south-east of Jarbo Gap. 277 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
  SBBG128005  Lupinus polyphyllus var. burkei L. Ahart 2010-9-21 17205 Butte ca. 70 yards E of the poor dirt rd, ca. 80 yards W of Big Kimshew Crk, ca. 1.5 mi NE of Jones Meadow, ca. 2.5 mi SE of Philbrook Reservoir 1917 Comment
  POM196063  Luzula comosa H. F. Copeland 1929-6-11 1244 Butte Jonesville. 1524 Comment
  CHSC33800  Luzula macrantha M. S. Taylor; L. Hanson 1981-4-10 3521 Butte On e side of logging spur rd, ca. 0.5 mi n of its jct with Concow Rd, ca. 6 mi n of Jarbo Gap on Hwy 70. 731 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
  CHSC76150  Luzula macrantha G. F. Hrusa 1997-4-30 13696 Butte Sierra Nevada. Serpentine outcrop on Old Railroad Grade Rd. immed. above Paradise Lake dam, approx. 3 mi. N of Magalia. 760 Comment
Read comments
Jun 21 2007
  CHSC87441  Luzula macrantha R. D. Fischer 2004-4-3 105 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Collected along Guardian Trail, 0.25 miles south of Pine Trail junction. 396 Comment
  RSA0060489  Luzula macrantha Peter F. Zika 2011-7-6 25533 Butte Mooreville Ridge Road, 0.5 road miles N of dam on Lost Creek Reservoir. 1020 Comment
  CAS-BOT-BC441205  Luzula macrantha Lowell Ahart 1980-3-26 2066 Butte Peter Ahart Ranch, Honcut 50 Comment
  UC1191829  Lycopus americanus Herbert L. Mason and Verne Grant 1946-8-14 13025 Butte canal near big pond on Sacramento Outing Club Comment
  CHSC30953  Lythrum hyssopifolia L. Ahart 1980-7-4 2456 Butte Near the Oak Grove Cemetary, ca. 1/2 mi se of Hurleton. 600 Comment
  CHSC109772  Madia elegans subsp. densifolia Lowell Ahart 2012-10-28 18535 Butte On the north side of the paved park road, west of Table 27, north of Cedar Grove, Lower Bidwell Park, Chico. 68 Comment
  CHSC46954  Madia elegans subsp. densifolia Lowell Ahart 1977-9-20 1581 Butte Along North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC62714  Madia elegans subsp. elegans L. P. Janeway 1993-6-3 4370 Butte Plumas National Forest. South end of Swayne Hill, along the road to Big Bar Mtn (23N28). 731 Comment
  CAS-BOT-BC344318  Madia exigua Lowell Ahart 1987-5-9 5592 Butte Along Pulga Road, about 1/4 mile west of Bardees Bar along the North Fork of the Feather River, about 2 1/2 miles south-west of Pulga 365 Comment
  JEPS104130  Madia gracilis Lowell Ahart 2003-6-30 10323 -A Butte Near the small stream, on the se side of Ponderosa Way, ca 2 1/2 mi (by road) sw of the Ponderosa Dam, ca 2 mi (air) nw of Forbestown. 578 Comment
  SEINET10474817  Madia gracilis Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4232 Butte T21N R6E ne sec 2. Ca. 1/4 mi w of Milsap Bar, ca. 25 mi ne of Oroville. Yellow Pine Forest; 500 m. 500 Comment
  UC179652  Madia sativa subsp. dissitiflora A. A. Heller 1914-8-6 11643 Butte Chico meadows 1219 Comment
  CAS-BOT-BC345236  Madia subspicata Lowell Ahart 1980-5-25 2323 Butte Along Swedes Flat Road, near Bangor 320 Comment
  CHSC27984  Maianthemum racemosum M. S. Taylor 1978-7-18 1700 Butte On top of Humboldt Peak, at Humboldt Summit. 2158 Comment
  CHSC33945  Maianthemum racemosum M. S. Taylor 1981-5-21 3783 Butte Jct of Camp Creek and rd 23N10, ca. 4 mi n of Pulga on Hwy 70. 1005 Comment
  CHSC45221  Malacothrix floccifera Lowell Ahart 1979-6-9 1927 Butte About 1/4 mile east of Magalia. 640 Comment
  JEPS124029  Malacothrix floccifera Lowell Ahart 2015-6-16 20241 Butte About 3 1/2 miles (by road) northwest of Fall River Bridge, about 5 miles (air) northwest of Camp 18, about 8 1/2 miles (air) northeast of Feather Falls. Comment
  JEPS87518  Malacothrix floccifera Lowell Ahart 1993-6-26 7028 Butte about 1 mi w Lost Creek Reservoir (w side of the dirt road); Mooreville Ridge 1188 Comment
  CDA31965  Malva nicaeensis L. Ahart 2009-6-12 15840 Butte At the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CDA38776  Malva nicaeensis L. Ahart, Linnea Hanson, Kaline Le Coq, Josephine Guardino 2012-4-27 17909 Butte On the north side of the path, near the sign, near of intersection of Vallombrosa Avenue and Manzanita Avenue, Lower Bidwell Park, Chico. Comment
  JEPS119995  Marah fabacea Lowell Ahart, Linnea Hanson, Kaline Le Coq, Josephine Guardino 2012-4-27 17916 Butte Near table 17, on the north side of Centennial Avenue, Lower Bidwell Park, Chico. Comment
  UC452592  Marah fabacea Mrs. R. M. Austin May 1883 126 Butte Chico Creek Comment
  CHSC87455  Marah watsonii R. D. Fischer 2004-3-20 89 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Collected along Guardian Trail below bluffs of Disk Golf Course. 396 Comment
  UC196259  Marah watsonii A. A. Heller 1914-4-27 11328 Butte 8 mi n Oroville Comment
  CHSC101809  Marrubium vulgare Lowell Ahart 2009-6-12 15845 Butte 10 yards north of Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  SEINET10834130  Marsilea vestita Mary Susan Taylor 1980-8-15 Taylor 3253 Butte T21N R2E nw sec 36, Hamlin Canyon quad. Pentz vernal pool, 0.4 mi SE of jct of Pentz (Benum) Rd, and Hwy 99, ca. 10 mi S of Chico; Valley Grassland. With E. Pierce. 55 Comment
  SD8258  Meconella californica Mrs. R. M. Austin 1880-1 Butte Comment
  CHSC3518  Medicago arabica John Francis 1966-4-16 110 Butte 1.5 miles E. of covered bridge (Honey Run). Comment
  CAS-BOT-BC269380  Melica californica A. A. Heller 1918-5-5 13012 Butte Near Magalia Comment
  CAS-BOT-BC269381  Melica californica A. A. Heller 1915-4-20 11860 Butte 7 miles below Centerville in the Sierra foothills 76 Comment
  CAS-BOT-BC269387  Melica californica John Thomas Howell; Gordon H. True 1967-6-11 42563 Butte On northwest side of Feather River Canyon near Pulga Bridge Comment
  CAS-BOT-BC269389  Melica californica John Thomas Howell 1962-6-16 37540 Butte Magalia 731 Comment
  CHSC35966  Melica californica M. S. Taylor 1982-5-21 4490 Butte On n side of Hwy 70 along Pulga Rd near Pulga bridge over Feather River, ca. 20 air mi ne of Oroville. 487 Comment
  CHSC56830  Melica californica J. D. Prouty 1980-4-17 80 .68 Butte Woodland off of Yankee Hill Road. 518 Comment
  CHSC94248  Melica fugax Lowell Ahart 2006-7-16 13007 Butte On the west side of the poor dirt road, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1524 Comment
  CHSC36067  Melica geyeri J. D. Jokerst; R. A. Schlising 1982-6-4 1586 Butte N of Concow Basin. 853 Comment
  CDA13298  Melica harfordii G. F. Hrusa, T. D. Wilfred 1996-7-9 13146 Butte Plumas National Forest; Common colonies on dry, shaded slopes in coniferous understory above Jordan Creek S of Hwy 162 near Roger's Cow Camp. Perennial. Comment
  CHSC87952  Melica harfordii Lowell Ahart 2004-6-22 11112 Butte On the east margin of a gravel road, road leads to Butte Creek, south of Doe Mill Road, about 1/8 mile southwest of the bridge across Butte Creek, about 2 miles (air) southeast of Forest Ranch, about 5 miles (air) west of Stirling City. 692 Comment
  CHSC88257  Melica harfordii Lowell Ahart 2004-7-11 11229 Butte On the north side of the road, on the northeast side of Paradise Lake, about 1/4 mile southeast of Mosquito Creek, about 4 miles (air) southwest of Stirling City. 814 Comment
  JEPS103566  Melica harfordii Lowell Ahart 2002-6-21 9739 Butte On the sides of a poor dirt road, Watson Ridge, ca 2 miles (air) NE of Bald Rock Dome, ca 5 miles (air) N of Feather Falls (the town). 1086 Comment
  SEINET10508160  Melica harfordii Lowell Ahart, Peter Ahart 1984-6-10 Ahart 4713 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown; Yellow Pine Forest; 700 m. 700 Comment
  CAS-BOT-BC281020  Melica stricta Vernon Oswald; Lowell Ahart 1987-8-5 3182 Butte Skirting the N flank of Humboldt Peak on the Butte - Plumas county border, S of the Pacific Crest Trail 2072 Comment
  POM196130  Melica subulata E. B. Copeland 1929-7-16 338 Butte Jonesville. 1550 Comment
  CHSC3161  Melilotus albus Dona Kingsford 1966-4-30 Butte 9 miles SW of Hooker Oak Tree in Bidwell Park at Salmon Hole. Comment
  CHSC97240  Melilotus indicus Lowell Ahart 2007-6-3 13972 Butte On the east side of the bridge across Concow Creek, east side of Jordan Hill Road, about 1 1/2 miles (air) southwest of Concow Reservoir. 415 Comment
  CHSC50325  Melilotus officinalis Vernon Oswald 1990-5-29 4259 Butte Hwy 99-Hwy 32 interchange in Chico. 65 Comment
  CHSC54438  Melilotus officinalis Vernon H. Oswald; Lowell Ahart 1991-7-15 4734 Butte Forest Rd 23N60 (Jordan Creek-Marble Creek Rd), 2.1 miles east of its junction with Oroville-Quincy Hwy, ca. 5.75 miles (air) northeast of Brush Creek. 1082 Comment
  CHSC66441  Mentha pulegium Vernon Oswald; Lowell Ahart 1996-6-10 7756 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 NE corner of Tract 7.2, Sactuary I. 33 Comment
  JEPS124276  Mentha pulegium Lowell Ahart 2015-11-18 20661 Butte About 1 1/2 miles southeast of intersection of Palm Avenue and Larkin Road, about 5 miles (air) northeast of Gridley. Comment
  CHSC760  Mentha spicata V. Holt; M. Underhill 1952-7-21 Butte 152 Comment
  JEPS107540  Mentha spicata Lowell Ahart 2005-8-19 12334 Butte On the east side of North Honcut Creek, about 1 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville 49 Comment
  UC872394  Mentzelia dispersa A. A. Heller 1917-7-26 12851 Butte Butte Meadows 1402 Comment
  CHSC47993  Mertensia ciliata Vernon Oswald 1984-7-31 1641 Butte Humboldt Rd. at the Willow Creek--Colby Creek bridge. Near the creek. 1487 Comment
  CAS-BOT-BC428753  Micranthes californica Lowell Ahart 1981-3-29 2715 Butte Along the edge of Ponderosa Way, about 1/8 mile south of the Ponderosa Dam, near Forbestown. 350 Comment
  CHSC21148  Micranthes californica M. S. Taylor 1975-3-10 416 Butte On s side of Butte Creek, ca. 1/4 mi w of Covered Bridge, ca. 8 mi e of Chico. Comment
  CHSC30666  Micranthes californica M. S. Taylor 1980-3-1 2341 Butte On bluffs overlooking Nance Canyon, ca. 1/4 mi n of Neal Rd, ca. 3 mi e of its jct with Hwy 99, ca. 7 mi s of Chico. 1219 Comment
  CHSC4656  Micranthes integrifolia R. Carter 1966-3-13 294 Butte Found ca. 6 mi. E of Chico at intersection of Honey-Run Rd. and Humbug Rd. in Butte Cr. Canyon; slope ca. 25 yds. up slope on S side canyon. Comment
  UCD134508  Micropus californicus E. H. Stanford 1940-4-14 s.n. Butte Morrison Ravine at Cherokee. Comment
  CAS-BOT-BC348695  Microseris acuminata K. L. Chambers 1952-5-16 409 Butte 2.3 mi. s. of Cherokee, on road from Paradise to Oroville Comment
  POM53412  Microseris lindleyi E. B. Copeland 1903-4-10 3028 Butte Chico Comment
  CHSC44273  Microseris nutans V. Oswald; L. Ahart 1988-6-17 3395 Butte Hillside at the n side of the dam at Lost Creek Reservoir. 1036 Comment
  SEINET10969158  Microsteris gracilis Mary Susan Taylor 1974-3-5 Taylor 78 Butte Along Cohasset Road, N of Chico. Assoc iates: Amsinckia intermedia, Dodecatheon clevelandii var. patulum, Blennospermum nanum, Orthocarpus erianthus. Comment
  POM147731  Microsteris gracilis subsp. humilis E. E. Stanford 1927-5-21 383 Butte 4 miles SE of Avery 1220 Comment
  SEINET10570404  Mimulus Mary Susan Taylor 1979-8-4 Taylor 2177 Butte T23N R5E center of S border sec. 22/27. Ca. 1 mi N of Cresta Powerhouse on Hwy 70, ca. 30 mi N of Oroville; granitic soils. 488 Comment
  HSC32580  Mimulus angustatus Linda M. Barker 1974-4-20 152 Butte Cherokee-Table Mt. Rd., 2 mi. S of Cherokee 244 Comment
  LA209139  Mimulus aurantiacus G. P. Van Eselline; 1918-5-5 1722 Butte Near Nineshew Comment
  UCD122319  Mimulus aurantiacus var. grandiflorus J. I. Mallory 1968-5-29 288 Butte 3/4 mile northwest of Union Hill. 579 Comment
  UC660011  Mimulus bicolor Lincoln Constance 1941-5-28 2831 Butte Magalia Sierra Nevada foothills, South Branch Feather River 487 Comment
  UCD111670  Mimulus bicolor Christopher Mallek 2008-1 HW1- 10 Butte Magalia. 756 Comment
  RSA0119189  Mimulus breweri Lowell Ahart 2014-7-7 19590 Butte About 1/2 mile (air) north of Philbrook Reservoir. 1745 Comment
  UC1594698  Mimulus breweri Lowell Ahart 1992-7-21 6802 Butte about 2 air mi ne Philbrook Reservoir (s side of hollow); Coon Hollow 1737 Comment
  SEINET10929282  Mimulus floribundus Mary Susan Taylor 1980-10-6 Taylor 3361 Butte T23N R5E se sec 15, Pulga quad. S side of Hwy 70, ca. 0.4 mi W of Bear Creek jct with N Fork Feather River, ca. 0.5 mi W of Arch Rock Tunnel Rest Stop, near Butte-Plumas county line; granitic soils. 488 Comment
  CDA13896  Mimulus glaucescens G. F. Hrusa, T. D. Wilfred 1997-5-8 13753 Butte Sierra Nevada; Above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. Comment
  RSA795591  Mimulus glaucescens Christopher T. Ivey 2010-6-7 375 Butte Honey Run Road, 3.5 km northeast of bridge crossing Butte Creek, in roadside ditch. 165 Comment
  UCSC000680  Mimulus guttatus Monica Larenas 1985-5-25 s.n. Butte Brush Creek Comment
  POM43693  Mimulus latidens C. C. Bruce 1897-05 2103 Butte Near Chico. Comment
  JEPS107776  Mimulus microphyllus Lowell Ahart 2005-5-2 11781 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
  UC426953  Mimulus primuloides E. B. Copeland 1930-7-15 460 Butte Jonesville 1500 Comment
  RSA0116104  Mimulus torreyi Lowell A. Ahart 2014-4-13 19660 Butte About 150 yards southeast of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  RSA4111  Mimulus torreyi E. B. Copeland 1929-7-18 462 Butte Jonesville. 1550 Comment
  SDSU10802  Mimulus tricolor Scott McMillan 1992-4-11 11 IV92B Butte The pool was under a electrical tower north of Upper Park Road, in Upper Bidwell Park, Chico. 78 Comment
  CAS-BOT-BC174592  Minuartia californica John Thomas Howell; Gordon H. True 1967-5-7 42180 Butte Northwest outskirts of Oroville north of the Feather River Comment
  CHSC38293  Minuartia californica Vernon Oswald 1983-2-20 91 Butte Upper Bidwell Park, Chico, on the north rim at the level of the w end of Horseshoe L. 128 Comment
  CHSC93350  Minuartia californica Lowell Ahart 2006-5-3 12559 Butte In the center of a shallow vernal pool, 20 feet south of the fence, about 5/8 mile north of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 405 Comment
  CHSC93500  Minuartia californica Lowell Ahart 2006-5-8 12590 Butte Margins of a vernal pool, about 80 yards south of the three Gray Pines on the rim of Coal Canyon, about 1 3/4 miles northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 346 Comment
  SEINET10932248  Minuartia californica Mary Susan Taylor 1984-4-6 Taylor 5406 Butte T22N R4E nw sec 3l. Ca. 0.5 mi N of Kunkle Reservoir, on E side of Pentz-Magalia Hwy, ca. 3 mi S of Paradise. Comment
  CHSC38296  Minuartia douglasii Vernon Oswald 1983-5-1 401 Butte Upper Bidwell Park, Chico, beside Yahi Trail ca. 400 ft w of Parking Area P which is located 2.0 mi e of the power lines. On a basaltic cap overlooking Chico Creek. 198 Comment
  SEINET11930246  Minuartia douglasii Unknown 1978-1 39 Butte Ca 150 ft W of Cherokee Rd, ca 5.5 mi N of Oroville, ca 6.5 mi S oh highway 70 on Cherokee Rd 518 Comment
  CAS-BOT-BC433045  Mitella pentandra E. B. Copeland 1930-6-24 644 Butte Jonesville 1500 Comment
  CHSC63958  Moehringia macrophylla B. Castro; L. P. Janeway, L. Gehrung 1994-4-18 508 Butte On Watson Ridge, on N-facing edge of large knoll. Ca 20 ft uphill from old trail. 1133 Comment
  CHSC116321  Mollugo verticillata Lowell Ahart 2015-10-26 20593 Butte Strand of Lake Oroville, on the west side of the West Branch of the Feather River, about 1 mile (air) southeast of Kunckle Reservoir, about 5 miles (air) southeast of Paradise. 207 Comment
  SEINET9776682 Image available Mollugo verticillata Richard Carter 2006-7-30 Butte N Chico, 0.3 mi N jct. Nord Hwy and Esplanade, between Esplanade and Hwy CA 99 Comment
  CHSC46490  Monardella breweri subsp. lanceolata Lowell Ahart 1989-5-31 6330 Butte Growing near a poor dirt road, east of a small stream, north of Truex Road, near Lake Oroville, about 1/4 mile northwest of the West Branch Bridge across Lake Oroville. 304 Comment
  CHSC70800  Monardella breweri subsp. lanceolata B. Castro 1989-8-1 332 Butte Ca 3.5 road mi E of Brush Creek on Milsap Bar Rd. Ca 100 ft S of rd. 853 Comment
  UC196297  Monardella breweri subsp. lanceolata A. A. Heller 1914-7-24 11628 Butte Near Forest Ranch 731 Comment
  SEINET13948592 Image available Monardella lanceolata A. A. Heller 1914-1 11628 Butte Near Forest Ranch; 2400 ft alt. 732 Comment
  SEINET13948647 Image available Monardella odoratissima Lewis S. Rose 1955-1 55105 Butte 6 mi SE of Paradise on Pentz Road; 1400 ft alt. 427 Comment
  RSA718088  Monardella odoratissima subsp. glauca L. Ahart 2006-7-16 12960 Butte north side of Humboldt Road, about 1 1/2 miles (air) southwest of Butte Meadows 1436 Comment
  UC2035806  Monardella odoratissima subsp. glauca H. F. Copeland 1932-8-17 Butte At The Summit Jonesville 2000 Comment
  CAS-BOT-BC314187  Monardella odoratissima subsp. pallida E. B. Copeland 1927-7-7 s.n. (distributed as UCBerkeley's 452 ) Butte Jonesville. 1550 Comment
  CHSC2422  Monardella sheltonii R. Carter 1965-6-15 227 Butte Found e of Paradise on Honey Run Rd., 2.4 mi. from intersection with Skyway on S side of road. 472 Comment
  CHSC39669  Monardella sheltonii Lowell Ahart 1983-6-21 4083 Butte Along Bloomer Hill Rd., about 3/4 mile west of the Oroville Quincy Highway, about 15 miles north-east of Oroville. Section 6. 425 Comment
  JEPS108795  Monardella sheltonii Lowell Ahart 2006-6-9 12655 Butte On the east side of Bardees Bar Road, north of the small stream, about 1/8 mile west of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga 385 Comment
  UC1609442  Monardella sheltonii Lowell Ahart 1993-7-6 7062 Butte about 1 air mi nw Lost Creek Reservoir Dam; Mooreville Ridge, Jackass Flat 1158 Comment
  RSA724908  Monardella villosa subsp. sheltonii L. P. Janeway 2007-6-26 9075 Butte Plumas National Forest; along Road 28 along the southern end of Swayne Hill; about 1.7 air KM northeast of the confluence of French Creek at the North Fork Feather River arm of Lake Oroville. 750 Comment
  SEINET10498953  Monardella villosa subsp. sheltonii Melvin L. Conrad 1973-6-5 Conrad 7042 Butte Jarbo pass on hwy 70. Yellow pine, california buckeye, and shrubby lupine 701 Comment
  CHSC57135  Montia chamissoi L. P. Janeway; R. A. Schlising 1988-7-22 3055 Butte Upper Coon Hollow; just below the saddle between Coon Hollow and Chips Creek. 1920 Comment
  CHSC84468  Montia diffusa Lowell Ahart 2003-7-12 10378 Butte Near a small stream, on the west side of Milsap Bar Road, about 2 1/2 miles (air) east of the Brush Creek Work Center, about 17 miles (air) northeast of Oroville. 1036 Comment
  CHSC100836  Montia linearis R. A. Schlising; R. Banchero 1980-6-2 3633 Butte 0.1 mi s of jct Humboldt Rd and Skyway/Humbug Rd at Butte Meadows. 1341 Comment
  SEINET10572668  Montia parvifolia Mary Susan Taylor 1981-5-11 Taylor 3692 Butte T22N R6E sw/sw sec 19, Pulga SE quad. Jct of French Creek and 22N93, ca. 3.5 mi S of Coyote Gap, ca. 17 air mi NE of Oroville. 2800 ft. 853 Comment
  CHSC108765  Morus alba L. P. Janeway 2011-5-9 10252 Butte Sacramento Valley. South side Feather River just east of Bedrock Park, Oroville; about 10-15 m back from the edge of the water. 42 Comment
  CHSC3376  Morus alba Robert L. Smith 1966-3-30 52 Butte Paradise. Comment
  JEPS117682  Muhlenbergia filiformis Lowell Ahart 2010-9-21 17221 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
  CHSC110396  Muhlenbergia mexicana Lowell Ahart 2012-9-28 18471 Butte Gravel bar in the middle of Big Chico Creek, about 30 yards east of the freeway, Lower Bidwell Park, Chico. 65 Comment
  POM183183  Muhlenbergia minutissima H. F. Copeland 1930-7-29 1347 Butte Neighborhood of Jonesville 1829 Comment
  RSA4650  Muhlenbergia minutissima E. B. Copeland 1929-7-29 341 Butte Above Jonesville. 1750 Comment
  UCD86781  Muhlenbergia minutissima E. B. Copeland 1929-7-29 85 Butte Lily Pond. Comment
  CHSC116016  Muhlenbergia rigens Lowell Ahart 2015-10-9 20544 Butte West edge of Bull Hill Road, about 3/4 mile northwest of the intersection of Bull Hill Road, Skyway, and Humbug Road, about 4 miles (air) north of Inskip. 1697 Comment
  CHSC45424  Myosurus minimus Lowell Ahart 1971-4-13 71 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 1/2 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC44208  Myriophyllum hippuroides Vernon Oswald 1988-7-4 3550 Butte Rancho Llano Seco. 7-Mile Lane 0.7 mi n of Nelsoon West Rd. Marshy slough. 30 Comment
  UC1100009  Najas guadalupensis Verne Grant, Herbert L. Mason 1946-9-29 13143 Butte w of Biggs Comment
  JEPS120716  Najas guadalupensis subsp. guadalupensis Lowell Ahart 2013-10-16 19116 Butte Thermalito After Bay, about 20 feet north of the base of the large rock levee, about 100 yards north of Larkin Road, about 4 air miles north of East Biggs. Comment
  CAS-BOT-BC260096  Nassella pulchra Lowell Ahart 1983-6-15 4055 Butte Peter Ahart Ranch, ca. 1.5 miles N and 3 miles E of Honcut 50 Comment
  SEINET10832615  Navarretia Mary Susan Taylor 1978-7-19 Taylor 1789 Butte Scattered in meadow on N end of Snag Lake between creek and Humbug Road, ca. 3 mi S of junction of Humbug Road and Scotts John Road; Yellow Pine Forest and Montane Meadow. 1676 Comment
  CHSC34983  Navarretia divaricata R. A. Schlising 1979-6-4 3435 Butte S of Cohasset off of Cohasset Highway. Comment
  CHSC34986  Navarretia divaricata R. A. Schlising; R. Banchero 1981-5-20 4059 Butte E part of county, Lumpkin Ridge. Comment
  JEPS108740  Navarretia divaricata subsp. divaricata Lowell Ahart 2006-7-16 13002 Butte On the west side of the poor dirt road, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1524 Comment
  CHSC34988  Navarretia intertexta R. A. Schlising 1979-6-4 3437 Butte S of Cohasset off of Cohasset Highway. Comment
  SEINET3696384 Image available Navarretia intertexta Lewis S. Rose 1933-5-27 33193 Butte Bangor. 267 Comment
  SEINET10496827  Navarretia intertexta Mary Susan Taylor 1980-5-15 Taylor 2627 Butte T23N R2E ne sec 7. In and around vernal pools in Chaparral area on Cohasset Ridge, ca. 1/4 mi E of Cohasset Rd, ca. 9 mi NE of Chico. 396 Comment
  UC726818  Navarretia leptalea subsp. leptalea A. A. Heller 1917-7-26 12817 Butte Butte Meadows 1280 Comment
  JEPS107885  Navarretia leucocephala subsp. leucocephala Lowell Ahart 2005-5-27 11814 Butte Deep depression near a large wash, pasture field, Peter Ahart Ranch, about 1 1/2 miles north and 1 1/5 miles east of Honcut, about 12 miles (air) southeast of Oroville 36 Comment
  UC1254393  Navarretia leucocephala subsp. leucocephala Roland McKee 1918-6-4 Butte Chico Comment
  UCR66594  Navarretia leucocephala subsp. leucocephala H. F. Copeland 1923-5-7 0612 Butte Sacramento Valley, Blavo 46 Comment
  CHSC60129  Navarretia nigelliformis B. Castro; L. P. Janeway 1992-5-9 450 Butte In bottom of unnamed canyon SE of Neal Road. 70 Comment
  CHSC116738  Navarretia pubescens Lowell Ahart 2016-5-24 20847 Butte Near the ditch, about 200 yards west of Loma Rica Road, about 300 yards southwest of the intersection of Loma Rica Road and La Porte Road, about 3 1/2 miles (air) northeast of Honcut. Grassy area in Foothill Woodland. 50 Comment
  CHSC31827  Navarretia pubescens L. Ahart 1977-5-8 1362 Butte Peter Ahart Ranch, Honcut. In pasture fields. 50 Comment
  RSA755443  Navarretia pubescens L. Ahart 2009-5-23 15727 Butte About 20 yards east of Ten Mile House Road, Upper Bidwell park, about 3/4 air mile west of Highway 32, about 10 miles northeast of Chico. 235 Comment
  UC1719846  Navarretia pubescens David Fruchter 1979-5-28 s. n. Butte Richvale (N of Corning) Comment
  CHSC38605  Navarretia tagetina Vernon Oswald 1983-5-21 510 Butte Upper Bidwell Park, Chico, on the north rim at the level of Horseshoe Lake. 152 Comment
  SEINET10496837  Navarretia tagetina Mary Susan Taylor 1974-5-7 Taylor 230 Butte In patches on N side of Pentz Road, ca. 3 mi E of Hwy 99. Valley Grassland, with Brodiaea sp., Calochortus luteus. Comment
  CHSC69483  Navarretia viscidula James D. Jokerst 1992-5-19 3365 Butte Cascade Range Foothills. Stone Ridge Ranch Development Site E of Cohasset Rd. at Chico Municipal. On terrace at powerlines on S side of Sheep Hollow. 97 Comment
  CHSC64123  Navarretia viscidula subsp. purpurea B. Castro; L. P. Janeway 1988-6-5 262 Butte On slope above Little Chico Ck. 243 Comment
  CHSC60973  Nemacladus capillaris Lowell Ahart 1993-6-20 6996 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC84212  Nemacladus interior Lowell Ahart 2003-7-10 10371 Butte On both sides of the dirt road to the power generator, on the north side of Ponderosa Reservoir, about 1 1/2 miles (air) east of the Ponderosa Dam. 331 Comment
  RSA0006287  Nemacladus montanus E. Brooks s.n. Butte Enterprise. Comment
  CHSC31112  Nemophila heterophylla Diane M. Reilly 1980-4-11 7 Butte 20 ft e of creek, ca. 1/2 mi s on dirt road off Big Bend Rd, ca. 2 mi se of Hwy 70, ca. 27 mi n of Oroville. 621 Comment
  CHSC39092  Nemophila maculata R. A. Schlising 1980-4-7 3560 Butte N of Rackerby in s part of county; Swedes Flat Road, 0.2 mile e of Hurleton-Swedes Flat Road. Comment
  UC726912  Nemophila pedunculata A. A. Heller 1929-3-14 14810 Butte near Hooker Oak; near Hooker Oak Comment
  CHSC70797  Nemophila spatulata B. Castro 1995-5-18 570 Butte Ca 2 air mi N of Feather Falls, towards western end of Watson Ridge, in meadow at the old Watson Cabin site, north of USFS Rd 21N25. In upper third of meadow, in very moist soil just downslope from spring. 1109 Comment
  CDA953  Nerium oleander D. G. Kelch 2006-8-2 6 .352 Butte Along Butte Creek, north of Durham-Dayton Hwy. Comment
  CHSC49436  Nicotiana acuminata var. multiflora Vernon Oswald 1984-6-3 1250 Butte Sacramento River, ca. 0.5 mi downstream from the mouth of Stony Creek. 39 Comment
  CHSC69725  Nicotiana acuminata var. multiflora Lowell Ahart 1997-10-24 7933 Butte About 200 yards north of the South Fork of the Feather River and on the east side of Sucker Creek, strand of Lake Oroville, about 1/4 mile wewst of the Ponderosa Dam. 289 Comment
  CHSC14106  Nicotiana quadrivalvis L. V. Ritter 1969-6-15 381 Butte Mand T Corporation Land, near Murphy Slough along bank of Sacramento River. Comment
  RSA0060137  Nicotiana quadrivalvis L. Ahart 2010-9-24 17234 Butte Near the SW edge of the Golf Course, along trail form the end of Centennial Ave. to the foot bridge across Big Chico Creek, Bidwell Park. 91 Comment
  CDA3526  Nymphaea odorata G. D. Barbe 1975-6-4 2029 Butte North side of Nelson West Road 1/4 mile east of Chico-Butte City Highway. 0 Comment
  CHSC95359  Nyssa sylvatica L. P. Janeway; Morgan LoRomer 2006-9-29 8890 Butte Rancho Arroyo Chico. Sacramento Valley. On the campus of California State University Chico; two trees at the southwestern corner of Shasta Hall, about 37 m southeast of Legion Ave. half way between Citrus Ave. and Warner St. 59 Comment
  RSA3788  Odontostomum hartwegii A. A. Heller 1926-4-28 13933 Butte 4 miles N of Chico, on the Richardson Springs road. Comment
  CHSC108847  Oemleria cerasiformis Lowell Ahart 2012-3-2 17768 Butte About 40 yards east of the Pine Trail, south of a deep drainage, about 1/4 mile west of Highway 32, about 8-1/2 miles northeast of Chico. 387 Comment
  SEINET10484013  Onobrychis viciifolia Mary Susan Taylor 1982-6-24 Taylor 4730 Butte T23N R5E nw/se sec 30. Pulga SW quad. Around large landing site on saddle of ridge se of Flea Mt, n of Pulga, ca. 5 air mi e of Magalia. 3600 ft. 1097 Comment
  JEPS113318  Oreostemma alpigenum var. andersonii L. P. Janeway 2006-8-12 8847 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. Comment
  CHSC25281  Origanum majorana K. R. Stern 1977-6-25 Butte Comment
  JEPS80620  Orobanche fasciculata M. S. Taylor 1980-5-15 2640 Butte ca. 9 mi. n.e. Chico (ca. 0.25 mi. e. of Cohasset Rd. on Cohasset Ridge); Cohasset Ridge 396 Comment
  POM15636  Orthocarpus attenuatus A. A. Heller, H. E. Brown 1902-5-12 5543 Butte Grade between Clear Creek and Paradise. Comment
  POM43591  Orthocarpus erianthus R. M. Austin 1883-03 28 Butte [No location information provided.] Comment
  SEINET10898078  Orthocarpus erianthus Mary Susan Taylor 1974-3-5 Taylor 73 Butte Along Cohasset Road, N of Chico. Assoc iates: Amsinckia intermedia, Dodecatheon clevelandii var. patulum, Blennospermum nanum, Orthocarpus erianthus. Comment
  CHSC101813  Oxalis corniculata Lowell Ahart 2009-6-12 15841 Butte 10 yards north of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  CHSC75387  Oxalis corniculata Vernon H. Oswald 1999-5-6 9724 Butte East side of Sacramento River and north side of Big Chico Creek, Bidwell Sacramento River State Park west of Chico, along the dirt road leading into the Big Chico Creek river access. 36 Comment
  CHSC27246  Oxalis pes-caprae P. Moyer 1972-3-4 104 Butte CSUC campus. Building K lawn. 60 Comment
  CHSC9144  Oxalis rubra L. W. Gray 1970-5-1 28 Butte Collected at 710 W. 3rd street on lawn in front of house, Chico. Comment
  CHSC21143  Oxypolis occidentalis M. S. Taylor 1975-8-31 893 Butte On Ernies Island in Butte Creek, ca. 50 ft s of Humboldt Rd, ca. 1/2 mi e of Butte Meadows. 1341 Comment
  RSA739733  Packera eurycephala var. lewisrosei L. P. Janeway, B. Castro 2007-5-6 8973 Butte Northern High Sierra Nevada, Ridge top along a side road N off the road from Sawmill Peak to Flea Valley, 1.8 air km NE of Sawmill Peak. 969 Comment
  CHSC11831  Packera subnuda var. subnuda E. B. Copeland 1930-6-27 497 Butte Jonesville. 1550 Comment
  CHSC28619  Panicum acuminatum M. S. Taylor 1979-10-3 2218 Butte In Butte Creek Canyon, ca. 1/4 mi upstream from bridge crossing Butte Creek at Helltown Rd, ca. 15 mi e of Chico. 243 Comment
  CHSC111736  Panicum acuminatum var. fasciculatum Lowell Ahart 2012-6-21 18206 Butte About 200 yards east of the dam at Sycamore Pool, Lower Bidwell Park, Chico. 62 Comment
  SEINET10607444  Panicum bulbosum A. Arthur Heller 1916-9-30 Heller 12665 Butte Hills S miles north of Oroville in culivated ground where it occurs sparingly. Comment
  CHSC38837  Panicum dichotomiflorum Vernon Oswald 1983-8-19 1010 Butte Upper Bidwell Park, Chico, in Lindo Channel ca. 100 ft upstream from the flood-control gates. 79 Comment
  CHSC43275  Panicum dichotomiflorum subsp. dichotomiflorum Lowell Ahart 1987-8-30 5869 Butte Road gutter, along Highway 70 about 1/8 mile west of Big Bend Road, about 1 1/2 miles south-west of Jarbo Gap. 655 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
  UC1153811  Panicum dichotomiflorum subsp. dichotomiflorum Beecher Crampton 1957-9-17 4627 Butte 5 mi nw Biggs (Biggs Rice Experiment Station); Biggs Rice Experiment Station Comment
  CAS-BOT-BC181183  Paronychia ahartii R. F. Hoover 1938-4-24 3242 Butte 3 mi. n. of Chico Comment
  SEINET10449695  Parvisedum pumilum Lowell Ahart 1983-4-10 Ahart 3932 Butte Sides and bottoms of small vernal pools, near the steel power line, ca. 0.5 mi ne of jct of Hwy 99 & Pentz Rd, ca. l6 mi s of Chico. Valley Grassland; 65 m. 65 Comment
  CHSC110343  Paspalum distichum B. Castro 2006-8-10 1597 Butte Sacramento Valley. Ca 1 mi W of Hwy 99 and 3 mi NE of Richvale, just S of the Western Canal siphon in Cherokee Canal. On W side of canal about 30 ft N of dirt road crossing the canal. 35 Comment
  UC1037265  Paspalum distichum E. Wilson 1934-9-3 70 Butte Biggs Rice Station Comment
  NY68338  Pedicularis A. A. Heller 1914-7-23 11609 Butte Chico Meadows. 1219.2 Comment
  RSA178619  Pedicularis attollens A. A. Heller 1928-7-10 14673 Butte Butte Meadows. Comment
  CHSC32814  Pedicularis densiflora W. Michael Foster 1981-4-13 1 Butte Ca. 200 ft ne of Cherokee rd and ca. 10 mi n of Oroville. 304 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
  CAS-BOT-BC67552  Pellaea mucronata Lowell Ahart 1979-4-6 s.n. Butte 3 mi. nw of Bangor, along the west side of North Honcut Creek. 100 Comment
  CHSC39232  Pellaea mucronata M. S. Taylor; L. Ahart, J. Jokerst 1982-1-17 5216 Butte Vicinity of mouth of Flag Canyon. On top of North Table Mt., ca. 8 mi n of Oroville. 373 Comment
  SEINET10872478  Pellaea mucronata Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4115 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
  UC1609391  Pellaea mucronata var. mucronata Lowell Ahart 1993-7-6 7063 Butte ca. 9 air mile nw of Lost Creek Reservoir Dam (Mooreville Ridge, Jackass Flat); Jackass Flat, Mooreville Ridge 1158 Comment
  SBBG28911  Penstemon azureus A. A. Heller 1938-5-28 15117 Butte 23 mi from Oroville on the Feather River Hwy Comment
  NY571121  Penstemon azureus var. angustissimus F. W. Pennell 1940-6-5 25678 Butte Route 24, along Feather River, 10-12 miles above Oroville 182.9 Comment
  NY601766  Penstemon heterophyllus var. purdyi A. A. Heller 1926-4-21 13926 Butte Along Rock Creek, 7 miles north of Chico. Comment
  UC139643  Penstemon heterophyllus var. purdyi Mrs. R. M. Austin Apr. 1896 189 Butte Plains e Chico; Plains e of Chico Comment
  CHSC37781  Penstemon laetus var. leptosepalus M. S. Taylor 1982-6-24 4729 Butte Around large landing on saddle of ridge se of Flea Mt, n of Pulga, ca. 5 air mi e of Magalia. 1097 Comment
  UC454141  Penstemon laetus var. leptosepalus Miss Kate Conger 1907-1 Butte Brush Creek Comment
  UC600437  Penstemon laetus var. leptosepalus H. F. Copeland 1931-6-10 Butte between Willow and Colby Creeks (Jonesville); , between Willow and Colby Creeks Comment
  UC423642  Penstemon neotericus David D. Keck 1930-7-24 970 Butte 7 mi above Chaparral ((near Humbug Summit)); Sierra Nevada, above Chaparral, nr Humbug Summit 1706 Comment
  POM193323  Penstemon newberryi subsp. newberryi E. B. Copeland 1930-7-6 458 Butte Above Jonesville. 1900 Comment
  CHSC43130  Penstemon personatus R. Banchero; R. Schlising 1981-7-19 609 Butte 1 mi e of Bald Mt lookout tower on Bald Mt. 1780 Comment
  JEPS94326  Penstemon personatus Lowell Ahart 1997-8-1 7803 Butte about 6 air mi ne of Stirling City (about 1 1/2 mi se of Bald Mountain, on the n side of the County Road, sw of Keyser Creek) 1432 Comment
  UC1527283  Penstemon personatus Lowell Ahart 1986-7-2 5336 Butte about 1/2 mi sw Bald Mountain (about 4 1/2 mi ne of Stirling City); sw of Bald Mountain, ne of Stirling City 1615 Comment
  UC102996  Penstemon rydbergii var. oreocharis Mrs. R. M. Austin 1899-7-1 232 Butte Colby Comment
  CHSC28893  Pentagramma triangularis M. S. Taylor 1980-2-23 2319 Butte Ca. 1/4 mi n of Neal Rd, on north-facing bluffs looking into Nance Canyon, ca. 4 mi sw of Paradise. 198 Comment
  CHSC28896  Pentagramma triangularis M. S. Taylor 1980-3-1 2339 Butte On north facing bluffs looking into Nance Canyon, ca. 1/4 mi n of Neal Rd, ca. 3 mi e of its jct with Hwy 99, ca. 7 mi s of Chico. 121 Comment
  CHSC3577  Pentagramma triangularis Judy Lee Potter 1966-2-26 Butte On Lucky John Road, Paradise. Comment
  CHSC28898  Pentagramma triangularis subsp. semipallida M. S. Taylor 1979-5-4 1996 Butte Along Millsap Bar Rd, ca. 4 mi ne of its jct with Bruch Creek Rd, ca. 26 mi ne of Oroville. 1005 Comment
  CAS-BOT-BC77141  Pentagramma triangularis subsp. semipallida John Thomas Howell 1959-9-20 34696 Butte Sierra Nevada - 9 mi. NE of Oroville, Feather River Highway Comment
  CHSC37267  Perideridia bolanderi subsp. bolanderi L. Ahart 1982-6-15 3565 Butte Ca. 1.5 mi e of Camp 18, ca. 8 mi e of Feather Falls. 1000 Comment
  CHSC38742  Perideridia oregana Vernon Oswald 1983-6-9 657 Butte Upper Bidwell Park, Chico, beside Yahi Trail w of Brown's Hole. 182 Comment
  CHSC40241  Perideridia parishii subsp. latifolia Vernon Oswald 1985-7-11 1898 Butte Philbrook Rd. ca. 0.1 mi e of Humbug Rd. at the road leading to W. Branch Camp. 1463 Comment
  RSA459082  Perideridia parishii subsp. latifolia M. B. Dunkle 1931-8-12 2624 Butte Paradise Valley Comment
  CHSC6631  Persicaria M. MacArthur 1968-6-17 298 Butte SE edge of Big Chico Creek below the Headhouse, Chico State College campus. 60 Comment
  CHSC26610  Persicaria amphibia M. P. Hayes 1977-9-24 118 Butte In drainage of Little Butte Creek where Little Butte Creek intersects road Z (Chico-Butte City Highway). In ditch along edge of road. 30 Comment
  CAS-BOT-BC413706  Persicaria hydropiper Lowell Ahart 1982-10-6 3846 Butte Along the edges of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 3 miles east of Honcut 50 Comment
  CHSC43246  Persicaria lapathifolia Lowell Ahart 1987-10-22 5922 Butte Along a drain ditch, along Oroville Chico Highway (149), 1/10 mile north-west of Highway 70. 76 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
  CHSC90818  Persicaria maculosa Lowell Ahart 2005-5-2 11782 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
  CHSC39114  Phacelia heterophylla subsp. virgata R. A. Schlising 1982-6-23 4299 Butte N of Concow, along Dogwood Creek. 1121 Comment
  RSA31961  Phacelia heterophylla subsp. virgata A. A. Heller 1938-5-28 15124 Butte Somewhat shaded places along the Feather River Hwy in moist soil, 25 miles from Oroville Comment
  CHSC46242  Phacelia procera Pauleen Broyles 1987-7-26 1086 Butte Ca. 7.5 km ese (air) of Jonesville (where Humboldt Road crosses Jones Creek). In meadow near Willow Creek where Humbug Summit Road crosses. 1890 Comment
  CHSC46565  Phacelia procera V. Oswald; L. Ahart 1989-7-12 3851 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. 1926 Comment
  SEINET10497019  Phacelia procera Mary Susan Taylor, Lowell Ahart 1981-8-16 Taylor 4207 Butte T25N R5E ne 1/4 sw 1/4 sec 21. Jones- ville SW quad. N side of 25N04, near upper Big Kimshew Creek, ca. 2 mi SE of Philbrook Reservoir, ca. 6 mi NE of Stirling City. Red Fir Forest. 6400 ft. 1950 Comment
  CHSC39121  Phacelia racemosa R. A. Schlising 1980-7-14 3908 Butte N part of county, 1.1 mi n of Snag Lake on the Skyway. 1822 Comment
  CHSC58919  Phacelia racemosa Lowell Ahart 1992-7-29 6891 Butte About 1 mile north-east of the Carr Mine, about 3/4 mile north-west of Lotts Lake. 1798 Comment
  CAS-BOT-BC154304  Phacelia ramosissima var. ramosissima A. A. Heller 1914-7-2 11517 Butte [Canon] Canyon of Big Chico creek Comment
  CHSC38465  Phacelia ramosissima var. ramosissima Vernon Oswald 1983-6-13 670 Butte Upper Bidwell Park, Chico., ca. 200 ft s of the footbridge at the Golf Course. 91 Comment
  CAS-BOT-BC154303  Phacelia ramosissima var. ramosissima Charles Piper Smith 1914-7-2 2905 Butte Chico Creek Comment
  CHSC97041  Phacelia vallicola B. Castro; Plumas NF/Feather River botanists 2005-6-6 1485 Butte On SW end of Lumpkin Ridge, ca 6 3/4 air mi NE of town of Feather Falls and 1.3 mi E of the 'Camp 18' site on topo maps. Ca 300 ft SE of USFS Rd 22N27 (Lumpkin Rd). ca 2 mi E of its jcn with the County Rd and USFS Rd 22N94 to Fall River. 1295 Comment
  UCD22550  Philadelphus lewisii James I. Mallory 1970-5-26 373 Butte Little Butte Creek Canyon south of Irish Town. 426 Comment
  SEINET12216556  Philadelphus lewisii subsp. californicus L. Ahart, Ahart, P. 1983-1 4080 Butte along Bloomer Hill Rd, ca 0.75 mi W of Oroville-Quincy Hwy, ca 15 mi NE of Oroville 425 Comment
  POM225865  Phlox speciosa subsp. occidentalis J. H. Morrison 1932-5-30 s.n. Butte Durham. Comment
  HSC38024  Phoradendron bolleanum Thomas W. Nelson, Jane Nelson 1976-5-10 2488 Butte Just E of Magalia Comment
  CHSC45303  Phoradendron libocedri Vernon Oswald 1987-10-17 3243 Butte Bolt Creek at a point ca. 1 mi e of Butte Meadows and 0.5 mi s of Humboldt Rd. 1341 Comment
  RSA443110  Phoradendron libocedri L. Ahart, P. Ahart 1985-9-15 5169 Butte On dry lava cap about 2 miles W of Sly Creek Reservoir, east of the intersection of Golden Trout Crossing road on Reville Ridge. 915 Comment
  JEPS115723  Phoradendron macrophyllum Lowell Ahart 2009-8-3 16255 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 209 Comment
  CAS-BOT-BC141243  Phoradendron serotinum subsp. tomentosum Forman T. McLean 1921-10-20 31 Butte Chico Comment
  CHSC36095  Phyllodoce breweri R. A. Schlising; K. Tarp, F. J. Fuller 1982-7-18 4328 Butte NE part of county, N of Philbrook Reservoir; SE of Snow Mt. Peak, on flanks of mountain. 2057 Comment
  CHSC59523  Phyllostachys bambusoides Bryan C. Willingham 1968-6-3 Butte Purchased in Nagasaki, Japan. Introduced to the Chico (California) Plant Introduction Station. Comment
  CHSC49438  Physalis acutifolia Vernon Oswald 1983-10-10 1066 Butte Near Chico on Bell Rd. ca. 1/2 mi s of the Mud Creek Diversion Channel. Along the edge of a young orchard. Comment
  SEINET10546754  Physalis angulata var. lancifolia Mary Susan Taylor 1978-9-8 Taylor 1901 Butte Around rice fields, ca. 6 mi N of Chico. 61 Comment
  CDA5814  Physalis philadelphica L. L. Heinrichs 1968-10-1 Butte Forebay Recreational Area, Highway 70 at Garden Drive, Oroville. 0 Comment
  RSA592544  Physocarpus capitatus S. O. Mattoon 1970-6-12 16 Butte Ponderosa Way Forest Road at Mud Creek; 5 air miles ESE of Cohasset; southern Cascade Mountains. 671 Comment
  SEINET10449366  Pieris japonica Mary Susan Taylor 1975-5-6 Taylor 554 Butte Campus of California State University Chico, along creek between bridge between Holt Hall and Butte Hall, and bridge between Holt Hall and Chemistry Bldg; Riparian Woodland. 61 Comment
  CAS-BOT-BC76942  Pilularia americana Lowell Ahart 1983-5-12 3969 Butte About 1/2 mile north-east of Highway 99 & Pentz Road. 65 Comment
  CHSC61203  Pilularia americana Lowell Ahart 1993-4-8 6930 Butte On the north side of Biggs Princeton Road, about 2 miles west of Biggs. 30 Comment
  CHSC8572  Pinus M. MacArthur 1968-6-17 293 Butte S. side of Administration Building, Chico State College campus. 60 Comment
  NY34619  Pinus attenuata R. C. Walsh 1987-7-7 297 Butte This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SEINET10530763  Pinus lambertiana Mary Susan Taylor 1976-2-22 Taylor 999 Butte Yellow Pine Forest, ca. 2 mi N of Cohas st, ca. 10 ft E of Cohasset Hwy. 610 Comment
  CAS-BOT-BC78936  Pinus monticola A. A. Heller 1915-6-26 12033 Butte Summit of the Sierra Nevada above Jonesville 2133 Comment
  RSA4587  Pinus monticola E. B. Copeland 1929-7-17 331 Butte Above Jonesville. 2000 Comment
  CHSC31514  Pinus ponderosa L. Ahart 1976-2-15 1007 Butte On North Honcut Creek. Peter Ahart Ranch, Honcut 53 Comment
  CHSC3901  Pinus ponderosa R. Carter 1967-7-31 501 Butte Found ca. 17 mi. NE of Oroville on W side of Big Bald Rock and E side of Bald Rock Rd. where road turns off to campground. 1066 Comment
  CHSC27191  Pinus sylvestris P. Moyer 1971-10-8 41 b Butte Front lawn Admin. Bldg. On CSUC campus. 60 Comment
  CHSC81424  Piperia transversa L. P. Janeway 1996-5-27 4981 Butte Northern Sierra Nevada Foothills. Next to the road into Vinton Gulch; 100 ft east of Cherokee Road. 307 Comment
  CHSC11777  Piperia unalascensis E. B. Copeland 1929-7-13 354 Butte Jonesville. 1500 Comment
  CHSC69117  Piperia unalascensis Lowell Ahart 1997-8-1 7778 Butte Near some small streamlets of Little Kimshew Creek, in Smow Meadow, about 1/4 mile east of Table Mountain, about 8 miles (air) northeast of Stirling City. 1524 Comment
  CHSC49562  Piptatherum miliaceum Vernon Oswald 1985-6-12 1829 Butte Bidwell State Park slightly s of the Washout on River Rd. On a bank of the river. 38 Comment
  UC2026874  Pistacia atlantica Lowell Ahart, Susan Bazell, Josephine Guardino, Wes Dempsey 2012-6-21 18202 -A Butte About 50 yards south of the dam at Sycamore Pool, Lower Bidwell Park, Chico. Comment
  CHSC109072  Pistacia chinensis Lowell Ahart; Linnea Hanson, Kaline Le Coq, Josephine Guardino 2012-4-27 17912 Butte On the north side of the path, near Table 14, on the north side of Centennial Avenue, Lower Bidwell Park, Chico. 80 Comment
  CHSC20534  Pittosporum tobira Pamela Caldwell 1972-5-7 Butte Behind President's Mansion across roadway from CSUC. Comment
  SEINET10529822  Pityrogramma triangularis Mary Susan Taylor 1980-3-8 Taylor 2369 Butte Pulga community, ca. 1 mi NE of Hwy 70, ca. 28 mi NE of Oroville; serpentine soils. 488 Comment
  CHSC111351  Plagiobothrys austiniae Lowell Ahart 2012-5-4 17982 Butte On damp bare soil, on the bottom and sides of a small vernal pool, on the south rim of Beatson Hollow, about 1/2 mile northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 351 Comment
  CHSC31258  Plagiobothrys bracteatus R. A. Schlising 1980-6-1 3610 Butte S of Paradise, at Kunkle Reservoir, off Pentz Hwy. 440 Comment
  CHSC47996  Plagiobothrys bracteatus Vernon Oswald 1984-5-13 1185 Butte Calif. Hwy 32 at the second bridge w of Nord-Hamilton-Cana Hwy. In a slough. 39 Comment
  CHSC31253  Plagiobothrys canescens R. A. Schlising 1980-4-7 3559 Butte NE of Bangor, ca. 1.1 mi ne of junction Ord-Bangor Highway, on LaPorte Road. At roadside. Comment
  CHSC47998  Plagiobothrys canescens Vernon Oswald 1984-3-30 1112 Butte Upper Bidwell Park, Chico, about one-half way up the north slope at the n-e corner of Horseshoe Lake. 121 Comment
  CDA34705  Plagiobothrys fulvus L. Ahart 2010-5-16 16684 Butte About 1/4 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. Comment
  CHSC116716  Plagiobothrys glyptocarpus var. modestus Lowell Ahart 2016-5-24 20857 Butte West side of a large drainage, about 50 yards north of the ditch, about 150 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. 44 Comment
  CHSC25484  Plagiobothrys greenei L. Ahart 1977-4-15 1297 Butte Found in the bottom of swales and vernal pools. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC31256  Plagiobothrys hispidulus R. A. Schlising; R. Banchero 1980-7-14 3892 Butte Along Skyway, 4.2 mi N of Inskip (= 0.8 mi N of jct with Bull Hill Road to Butte Meadows); in meadow/pasture. 1511 Comment
  CHSC94243  Plagiobothrys hispidulus Lowell Ahart 2006-7-16 13001 Butte On the west side of the poor dirt road, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1524 Comment
  UC196309  Plagiobothrys hispidulus A. A. Heller 1914-6-22 11496 Butte Chico Meadows w slope Sierra Nevada, Chico Meadows 1219 Comment
  JEPS21212  Plagiobothrys nothofulvus A. A. Heller 1914-4-13 11283 Butte low treeless hills 8 mi n Oroville Comment
  SEINET10497552  Plagiobothrys nothofulvus Mary Susan Taylor 1973-1 Taylor 37 Butte Upper Bidwell Park, Chico. Associates: Stipa pulchra, Lasthenia chrysostoma, Layia fremontii. 61 Comment
  SEINET12249493  Plagiobothrys scriptus Unknown 1983-1 3918 Butte about 1 mi NE of Hwy 99 & Pentz Rd 65 Comment
  CHSC39626  Plagiobothrys stipitatus var. micranthus Lowell Ahart 1983-5-12 3972 Butte Found along the power line, about 1/2 mile north-east of Highway 99 and Pentz Road. 65 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
  CHSC4469  Plagiobothrys stipitatus var. stipitatus C. Glascock 1965-3-23 341 Butte Ca. 1 mi. S of US99E on Haille Rd., ca. 11 mi. NW of Chico. Near Butte-Tehama Co. line. In pasture NE of Haille Rd. Comment
  CHSC110440  Plantago elongata B. Castro 2007-3-29 1618 Butte Sacramento Valley. Ca 0.9 mi SE of Chico Airport, N of Sycamore Creek and E of Cohasset Rd. Around edges of distinct but shallow, flat-bottomed vernal pool, ca 80 ft E of Cohasset Rd and 50 ft N of Levell Along Sycamore Creek. 57 Comment
  CHSC118550  Plantago elongata Lowell Ahart 2017-2-27 21384 Butte Along a poor road, Peter Ahart Ranch, about 2 miles north and 1 1/4 miles east of Honcut, about 12 miles southeast of Oroville. 33 Comment
  HSC92462  Plantago elongata L. Ahart 1984-4-24 4854 Butte Peter Ahart Ranch, 2 mi. N and .5 mi. E of Honcut, 12 mi. S of Oroville 37 Comment
  CHSC31362  Plantago erecta W. F. Babb 1980-4-21 6 Butte On s side of Neal Rd. ca. 1.5 mi e of junction with Hwy 99E ca. 3 mi s of Chico. Comment
  SEINET10499852  Plantago erecta Mary Susan Taylor 1980-3-1 Taylor 2353 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
  CHSC66165  Plantago lanceolata Vernon Oswald; Lowell Ahart 1996-5-27 7666 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service Parcel between 7 Mile Lane and the Sacramento River. Scattered plants in the formerly irrigated pasture in the S paddock of Tract 7, Sanctuary II. 32 Comment
  JEPS94565  Platanthera leucostachys Lowell Ahart 1997-7-11 7746 Butte se Cold Creek (along small stream from springs, n of dirt road, about 2 air mi sw of Bald Mt., about 9 mi by road e (or about 2 air mi ne) of Stirling City) 1219 Comment
  CHSC20549  Platanus racemosa M. S. Taylor 1975-7-4 829 Butte Along Big Chico Creek, Five Mile, Upper Bidwell Park, Chico. 76 Comment
  CHSC39948  Platanus racemosa Lowell Ahart 1984-4-3 4535 Butte Along North Honcut Creek, ca. 1 mile N and 2.7 miles E of Honcut; on Peter Ahart Ranch. 50 Comment
  CAS-BOT-BC91592  Platystemon californicus Mrs. J. H. Morrison 1952-4-3 s.n. Butte Durham. Comment
  CHSC10701  Plectritis ciliosa Lowell Ahart 1968-4-1 Butte Peter Ahart Ranch, Honcut. Comment
  UCD80810  Plectritis ciliosa CNPS SN Foothill Team 2005-3-22 SNFN 0063 c Butte CDPR, Oroville State Recreation Area, just south of a state park utility road out to water tanks; this road heads southwest from Highway 162, just N of junction with Forbestown Road. 329 Comment
  SEINET10840002  Plectritis ciliosa Mary Susan Taylor 1981-4-5 Taylor 3491 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
  UCD92193  Poa Robert E. Preston 1982-3-20 191 Butte along Hwy. 70, ca. 0.6 mile west of Cresta Power House. 451 Comment
  CHSC29055  Poa annua R. A. Schlising 1980-4-2 3539 Butte Richvale vernal pools; 1/4 mi S of junction Hwy 162 to Oroville and Hwy 99; along latter and across from Thermalito Afterbay. Comment
  JEPS121979  Poa bolanderi Lowell Ahart 2014-7-10 19628 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  RSA718083  Poa bolanderi L. Ahart 2006-7-16 12972 Butte About 20 yards east of the poor dirt road, About 100 yards south of the cabin, About 0.75 mile (air) northwest of Jonesville, About 5 miles (air) northeast of Butte Meadows. 1570 Comment
  SEINET10657849  Poa bulbosa Lowell Ahart 1987-5-6 Ahart 5561 Butte On dry bare disturbed soil along the road, at the Poe Power House along the North Fork of the Feather River, about 2 miles south-east of Jarbo Gap. Comment
  CHSC38845  Poa compressa Vernon Oswald 1983-6-24 762 Butte Upper Bidwell Park, Chico, in the bed of Lindo Channel near the diversion weir. 79 Comment
  SACT001941  Poa pratensis Herbert Copeland 1929-5-10 Butte In damp open places 1500.0 Comment
  SEINET175716 Image available Poa pringlei Unknown 1931-6-22 606 Butte At 'The Summit 2000 Comment
  CAS-BOT-BC244153  Poa sierrae Lowell Ahart 1978-4-19 1486 Butte Along the trail to Feather Falls, about 0.5 mile from the trail head 650 Comment
  CHSC772  Pogogyne douglasii D. Bower 1953-7-16 Butte 4A Llano Seco. 30 Comment
  CHSC39628  Pogogyne zizyphoroides Lowell Ahart 1983-5-12 3980 Butte North-east of Highway 99 and Pentz Road. Along the power line, about 1/2 mile northeast of Highway 99 and Pentz Road. 65 Comment
  CHSC61718  Polanisia dodecandra subsp. trachysperma Vernon H. Oswald; Lowell Ahart 1993-8-25 5853 Butte Hwy. 32 between Forest Ranch and Lomo, at the 34.0 mi paddle marker. 1060 Comment
  CAS-BOT-BC167550  Polygala cornuta var. cornuta Lowell Ahart 1985-6-30 5081 Butte Along the Forbestown Ditch, about 2 1/2 miles north-east of Forbestown 868 Comment
  CAS-BOT-BC167551  Polygala cornuta var. cornuta Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  CAS-BOT-BC167557  Polygala cornuta var. cornuta C. R. Quick 1941-6-8 41 -15 Butte Big Bar Mt. Meadow Comment
  CAS-BOT-BC167559  Polygala cornuta var. cornuta Lewis S. Rose 1955-6-15 55102 Butte 6 mi. se. of Paradise on Pentz Road 426 Comment
  CHSC95086  Polygala cornuta var. cornuta L. P. Janeway 2006-6-25 8698 Butte Northern High Sierra Nevada. Along a major dirt road 2.6 km south of Stirling City towards West Branch Feather River crossing. 1006 Comment
  SEINET10537769  Polygonum Mary Susan Taylor, Lowell Ahart 1982-10-11 Taylor 5153 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
  RSA769020  Polygonum arenastrum L. Ahart, John Dittes, Josephine Guardino 2008-11-8 15409 Butte North side of gravel road, about 50 yards east of Cedar Grove Parking Area in Lower Bidwell Park, Chico 67 Comment
  CAS-BOT-BC414190  Polygonum aviculare subsp. depressum John Thomas Howell 1961-9-22 36743 Butte Bank of Feather River, Oroville 53 Comment
  CAS-BOT-BC414191  Polygonum aviculare subsp. depressum Lowell Ahart 1976-9-21 s.n. Butte Along the edge of the road 1/8 mile east of Golden Trout Crossing, a bridge across South Fork Feather Riv; about 3 miles west of Sly Creek Reservoir Comment
  JEPS117518  Polygonum bidwelliae Lowell Ahart 2010-5-23 16730 Butte On the west side of Guardians trail, north of the small drainage, about 50 yards north of Pine Trail, about 1/4 mile (air) west of Highway 32, about 9 miles (air) northeast of Chico 429 Comment
  CHSC78889  Polygonum bolanderi Lowell Ahart 2000-9-27 8694 Butte About 1/4 mile southeast of Little Bald Rock, about 4 miles (air) northeast of Madrone Lake, about 13 miles (air) northeast of Oroville. 1066 Comment
  CHSC99540  Polygonum bolanderi L. P. Janeway 2008-6-15 9413 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
  CHSC31167  Polygonum douglasii subsp. douglasii M. S. Taylor 1978-9-9 1916 Butte On w side of Bull Run Rd, ca. 11 mi s of Butte Meadows. 1463 Comment
  CHSC30897  Polygonum douglasii subsp. spergulariiforme M. S. Taylor 1980-9-19 3338 Butte Ca. 100 ft s of Coutelenc Rd, ca. 500 ft e of its jct with the Skyway, Magalia. 609 Comment
  UC600491  Polygonum douglasii subsp. spergulariiforme H. F. Copeland 1920-7 Butte Jonesville Comment
  CDA22816  Polygonum lapathifolium L. Ahart 2002-10-17 9992 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
  UC478530  Polygonum phytolaccifolium E. B. Copeland 1930-8-4 628 Butte Jonesville; along streams 1500 Comment
  UC1594696  Polygonum polygaloides subsp. kelloggii Lowell Ahart 1992-7-21 6804 Butte Coon Hollow; sides of snow lake on s side, about 2 air mi ne of Philbrook Reservoir 1737 Comment
  SEINET10871633  Polygonum scabrum Mary Susan Taylor, Lowell Ahart 1982-10-11 Taylor 5161 Butte T17N R1E s/nw sec 15. Pennington quad. Graylodge Wildlife Refuge, on n side of loop rd w of HQ, ca. 12 mi sw of Gridley. 60 ft. 18 Comment
  CAS-BOT-BC71863  Polypodium californicum Lowell Ahart 1981-3-29 2716 Butte Along Ponderosa Way, Ponderosa Dam 350 Comment
  CAS-BOT-BC71874  Polypodium californicum A. A. Heller 1919-3-29 13090 Butte Feather River near Yankee Hill Comment
  SEINET10530410  Polypodium californicum Mary Susan Taylor 1980-3-8 Taylor 2373 Butte Pulga community, ca. 1 mi NE of Hwy 70, ca. 28 mi NE of Oroville; serpentine soils. 488 Comment
  SEINET10966165  Polypodium californicum Mary Susan Taylor 1979-9-28 Taylor 2191 Butte Butte County line at Hwy 70, between boundry and Arch Rock tunnel; granitic soils and dome outcrop. 488 Comment
  UCSB63725  Polypodium californicum Occhino, Deborah 1990-4-22 Butte S bank Big Chico Creek, vic. police pistol range, SW corner Bidwell Park, Chico 60 Comment
  CHSC52380  Polypodium calirhiza Louis C. Bock 1987-4-23 12 Butte Ca. 1.5 mi ne of Chico on Centennial Avenue and ca. 5 ft from s side of road. Comment
  SEINET10874638  Polypodium glycyrrhiza Mary Susan Taylor 1980-4-1 Taylor 2420 Butte T22N R2E sc sec 25. Riparian Woodland along S side of Butte Creek, ca. 1/4 mi downstream from Honey Run Covered Bridge ca. 6 mi E of Chico. 122 Comment
  JEPS114970  Polypogon australis Lowell Ahart 2008-5-21 14778 Butte Dry bare granite soil, below the high water line of Lake Oroville, on the north side of the South Fork of the Feather River, where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam 246 Comment
  CAS-BOT-BC233057  Polypogon interruptus Lowell Ahart 1977-6-2 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC233059  Polypogon interruptus Lowell Ahart 1983-6-26 4110 Butte Along Ponderosa Way, ca. 1/8 mile E of the intersection of the Oroville Quincy Highway and Ponderosa Way, ca. 15 miles NE of Oroville 500 Comment
  CHSC38851  Polypogon interruptus Vernon Oswald 1983-5-8 448 Butte Upper Bidwell Park, Chico, in the bed of Lindo Channel between Five-Mile Rec. Area and the flood-control gates. 79 Comment
  CHSC90933  Polypogon interruptus Lowell Ahart 2005-4-14 11720 Butte Bottom of a deep drain ditch, about 200 feet east of the railroad tracks, north of Spruce Street, Gridley. 28 Comment
  JEPS116071  Polypogon interruptus Lowell Ahart 2009-5-30 15786 Butte On wet soil, along a small seep, at the base of a large rock, northwest of a broad open drainage in oak woodland, about 150 yards northwest of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) west of Highway 32, about 1 266 Comment
  SEINET10602418  Polypogon interruptus A. Arthur Heller 1914-5-19 Heller 11419 Butte Hills 8 miles north of Oroville. Comment
  CHSC2178  Polypogon monspeliensis H. Silberman; D. Isaac 1949-5-17 Butte Drainage of Golf course reservoir, Chico. 91 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
  CHSC4147  Polystichum imbricans R. Carter 1966-4-28 374 Butte Found in Feather R. Canyon ca. 7 mi. N of Jarbo Gap at intersection of Hwy. 70 and 23N28; ca. 100 yds. Up 23N28 on E side of road. 640 Comment
  CHSC116274  Polystichum imbricans subsp. imbricans Lowell Ahart 2015-10-24 20584 Butte 100 yards southwest of the bridge across Butte Creek, on the north side of Doe Mill Road, about 3 miles (air) north of De Sabla Resevoir. 660 Comment
  CHSC60945  Polystichum imbricans subsp. imbricans Lowell Ahart 1993-6-26 7036 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC86425  Polystichum imbricans subsp. imbricans Paul Maslin 2004-1-1 1 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). Plants located about half mile south of main entrance. 381 Comment
  CAS-BOT-BC72295  Polystichum imbricans subsp. imbricans Lowell Ahart 1984-5-28 4648 Butte below a dirt road about 1 1/4 miles northeast of the West Branch Bridge, about 2 miles south of Old Yankee Hill 450 Comment
  UC1562401  Polystichum lemmonii Vernon Oswald and Lowell Ahart 1990-6-20 4304 Butte between Philbrook Reservoir and Carr Mine (s side Philbrook Creek, ca. 0.5 mi w of Butte-Plumas county line) 1914 Comment
  CHSC33978  Polystichum munitum M. S. Taylor 1981-5-14 3708 Butte 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 Mt House on Oroville-Quincy Hwy. 975 Comment
  CHSC34244  Polystichum munitum M. S. Taylor 1981-5-29 3810 Butte Vicinity of old mining claim cabin, 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
  JEPS113776  Polystichum munitum Lowell Ahart 2007-6-12 14065 Butte about 70 yds N of the parking area at Big Bald Rock, about 14 mi (air) NE of Oroville 1001 Comment
  CHSC45308  Populus balsamifera subsp. trichocarpa Vernon Oswald 1987-6-9 2970 Butte Summit Lake ca. 4 mi se of Jonesville, ca. 1 mi n of Snow Mt. 1901 Comment
  UC600407  Populus tremuloides H. F. Copeland 1930-7-26 Butte Jonesville Comment
  RSA699698  Potamogeton diversifolius Lowell Ahart 2004-7-11 11226 Butte On the southeast edge of Paradise Lake, about 3/4 mi. northeast of the picnic area, about 1 mi. northeast of Paradise Dam, about 4 mi. (air) southwest of Stirling City. 815 Comment
  UC860934  Potentilla gracilis var. fastigiata A. A. Heller 1917-7-26 12836 Butte Butte Meadows 1280 Comment
  POM197046  Potentilla norvegica subsp. monspeliensis H. F. Copeland 1928-8-22 1066 Butte Jonesville. 1524 Comment
  CHSC38652  Poterium sanguisorba Vernon Oswald 1983-5-25 550 Butte Upper Bidwell Park, Chico, 400 ft n of Upper Park Rd. at Diversion Dam. Along an abandoned road. 134 Comment
  CHSC33661  Primula suffrutescens R. Schlising; R. Preston, R. Banchero, D. Burk. 1981-7-21 Butte SE of Jonesville in NE part of county, on ridgetop of Snow Mountain. 2103 Comment
  CHSC1067  Proboscidea louisianica 1947-6-1 Butte River road near Chico. Comment
  CHSC13708  Proboscidea lutea M. S. Taylor; K. Stern 1974-10-11 328 Butte Scarce in weed field ca. 50 yds e of River Rd, opposite washout on Sacramento River, ca. 10 mi w of Chico. Comment
  CHSC39512  Prunella vulgaris var. lanceolata Lowell Ahart 1983-6-21 4067 Butte Along Bloomer Hill Road. Near a Branch of Canyon Creek, about 1/2 mile west of the Oroville Quincy Highway, about 15 miles north-east of Oroville. Section 5. 40 Comment
  CHSC52061  Prunella vulgaris var. lanceolata B. Castro; L. P. Janeway, R. A. Schlising 1988-7-30 284 Butte By side of road on sw-facing slope above Coon Hollow. 1859 Comment
  JEPS119752  Prunus avium Lowell Ahart 2012-5-17 18083 Butte On both sides of the horse trail, between the paved park road and the dirt road, between Table 21 and Larch, Lower Bidwell Park, Chico. Comment
  CHSC110112  Prunus cerasifera L. P. Janeway 2012-5-2 10818 Butte Sacramento Valley. City of Chico; semi-natural riparian strip be-tween Big Chico Creek and Vallombrosa Way just southwest of One Mile Recreation Area; northwest side of the creek. Next to the road. 62 Comment
  CAS-BOT-BC159928  Prunus emarginata F. N. Bassett 1923-6-16 s.n. Butte Jonesville Comment
  CHSC11998  Prunus emarginata E. B. Copeland 1931-7-28 650 Butte Jonesville. On ridge west of North Willow Creek. 1650 Comment
  CHSC408  Pseudobahia heermannii B. Richardson 1925-3-25 Butte Centerville road. 91 Comment
  JEPS118066  Pseudognaphalium californicum Lowell Ahart 2011-8-17 17630 Butte About 100 yards west of the table at the old homestead and southwest of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 239 Comment
  CHSC100520  Pseudognaphalium luteoalbum Lowell Ahart 2008-11-4 15399 Butte On the west side of Potter Ravine, below the high water line of Lake Oroville, about one mile north of the large parking area on the north end of Oroville Dam, about 5 miles (air) northeast of Oroville. 242 Comment
  JEPS98581  Pseudognaphalium stramineum Lowell Ahart 2000-5-13 8346 Butte 5 air miles SW of Oroville Oroville 42 Comment
  UCD149980  Pseudognaphalium stramineum E. Littrell 1972-5-8 s.n. Butte Gray Lodge Wildlife Area. Comment
  POM219373  Pseudostellaria jamesiana H. F. Copeland 1931-6-10 1526 Butte Jonesville, between Jones and Willow Creeks 1524 Comment
  CAS-BOT-BC80090  Pseudotsuga menziesii John Thomas Howell 1962-6-15 37434 Butte Magalia 731 Comment
  SEINET11739303  Pseudotsuga menziesii Unknown 1982-1 1 Butte 50 m W of Coultolenic Road, 150 m E of Skyway, 0.5 km N of Magalia 700 Comment
  JEPS119592  Pseudotsuga menziesii var. menziesii Lowell Ahart 2012-2-22 17737 Butte About 100 yards of Ten Mile House Road, about 3/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  SEINET10475098  Psilocarphus brevissimus Lowell Ahart 1983-6-6 Ahart 4030 Butte Peter Ahart Ranch, ca. 2.5 mi ne of Honcut. Valley Grassland; 50 m. 50 Comment
  UCD135289  Psilocarphus oregonus L. Ahart 1978-5-12 1715 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC103939  Psilocarphus tenellus var. globiferus Lowell Ahart 2010-5-22 16722 Butte North of the road, about 100 yards west of the fence, about 1/4 mile east of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 387 Comment
  CHSC57334  Pteridium aquilinum var. pubescens Robert C. Hill 1990-4-10 7 Butte Large population at junction of Enterprise Bridge and south Fork Feather River, 13 mi e of Oroville. 426 Comment
  CHSC11804  Pterospora andromedea E. B. Copeland 1931-7-15 668 Butte Jonesville. 1550 Comment
  CHSC60976  Pterospora andromedea Lowell Ahart 1993-6-26 7026 Butte On the west side of the dirt road, Mooreville Ridge, about 1 mile west of the Lost Creek's Reservoir. 1188 Comment
  CHSC74095  Pycnanthemum californicum B. Castro 1998-7-28 813 Butte Sunset Hill Meadow. Ca 2 air mi W of Forbestown, ca 0.2 mi S of Sunset Hill fire lookout and 300 ft S of Forbestown Rd, at headwaters of New York Creek. At end of old dirt road at E edge of old homestead site. 929 Comment
  CHSC38648  Pyracantha fortuneana Vernon Oswald 1983-5-22 525 Butte Upper Bidwell Park, Chico, on the s bank of Lindo Channel between Five Mile Recreation Area and the flood-control gates. 79 Comment
  CHSC30770  Pyrola aphylla M. S. Taylor; R. S. Schlising 1980-7-6 3070 Butte On e side of Hwy 32, ca. 1 mi n of Soda Springs. 1280 Comment
  UC600605  Pyrola asarifolia E. B. Copeland Jul 1929 Butte Jonesville 487 Comment
  CAS-BOT-BC462603  Pyrola dentata A. A. Heller 1914-7-23 11597 Butte About Chico meadows 1219 Comment
  SD3516  Pyrola picta E. B. Copeland 1931-7-15 Butte Jonesville, coniferous woods 1600 Comment
  CHSC2806  Quercus Carl Pejsa 1958-3-15 99 Butte Bidwell Park Forestry Station. Comment
  CHSC8566  Quercus M. MacArthur 1968-6-13 365 Butte NW of EP Building, Chico State College campus. 60 Comment
  UC2026890  Quercus Lowell Ahart, Josephine Guardino 2012-10-12 18482 Butte On the south side of the CARD Community Center building, Lower Bidwell Park, Chico. Comment
  CHSC109102  Quercus X morehus Lowell Ahart 2012-3-23 17799 Butte On the south side of the Old Humboldt Road cut, north end of the Disc Golf Area, about 50 yards west of Highway 32, about 5 miles (air) northeast of Chico. 395 Comment
  CDA43369  Quercus berberidifolia D. G. Kelch 2012-9-19 12 .359 Butte 300 m SSW of Forest Ranch E of Oroville along Rte 32. Comment
  UC1174971  Quercus berberidifolia P. C. Everett and E. K. Balls 1959-10-20 23907 Butte 8.6 mi ne Chico (along State Hwy 32, toward De Sabla) 487 Comment
  POM106268  Quercus chrysolepis C. C. Bruce 1898-05 1805 Butte Forest Ranch Comment
  UC600520  Quercus chrysolepis H. F. Copeland 1920-7-26 335 Butte Jonesville Comment
  UCD57254  Quercus chrysolepis G. F. Hrusa; T. D. Wilfred 1997-5-7 13739 Butte Sierra Nevada. Immed. E of Holmwood Drive. N of Magalia. Above Little Butte Creek. 750 Comment
  CHSC111730  Quercus coccinea Lowell Ahart; Susan Bazell, Josephine Guardino, Wes Dempsey 2012-6-21 18224 Butte North side of paved parak road, north of South Park Drive, east of Caper Acres Playground, about 150 yards west of the Freeway, Lower Bidwell Park, Chico. 62 Comment
  HSC32631  Quercus douglasii Gary S. Lester 1974-4-20 101 Butte Along Pentz Rd. 300 yds. S of intersection with Clark Rd. 76 Comment
  RSA263855  Quercus garryana J. T. Howell 1955-6-15 30496 Butte 6 miles from Paradise on road to Pentz. 427 Comment
  SEINET12031932  Quercus garryana W. Knight, Knight, I. 1989-1 6495 Butte Cohasset Rd 0.6mi S of summit at 1700 ft Comment
  CHSC33391  Quercus garryana var. breweri Lynette Wood 1979-4-25 Butte S of Paradise, ca 1 mi from junction with Neal Road, along Skyway. 414 Comment
  CHSC52340  Quercus garryana var. semota L. P. Janeway 1989-5-19 3268 Butte Serpentine outcrop and open area near upper SE'ern branches of Rattlesnake Cr, ca. 2.3 mi from bridge over W Br Feather River via rd to Sawmill Pk. 807 Comment
  CAS-BOT-BC105141  Quercus kelloggii Lowell Ahart 1980-9-10 2625 Butte Little Bald Rock 1100 Comment
  JEPS113214  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
  JEPS117323  Quercus lobata Lowell Ahart 2010-6-12 16803 A Butte North side of the pond and table, at the old homestead, about 100 yards south of Ten Mile House Road, about 5/8 mile (air) west of Highway 32, about 9 miles (air) northeast of Chico 249 Comment
  SEINET10477291  Quercus lobata Mary Susan Taylor 1975-5-6 Taylor 558 Butte Campus of California State University Chico, along creek between bridge between Holt Hall and Butte Hall, and bridge between Holt Hall and Chemistry Bldg; Riparian Woodland. 61 Comment
  UC1135801  Quercus vacciniifolia J. A. Sowder, A. E. Wieslander 1933-6-24 91 Butte 0.5 mi e Inskip (on Fish Creek); Chico Quad. 1432 Comment
  RSA795770  Rafinesquia californica L. Ahart 2012-4-30 17928 Butte About 10 yards west of South Rim Trail, about 5/8 miles west of Highway 32, about 8 3/4 air miles northeast of Chico, south part of Upper Bidwell Park. 261 Comment
  CHSC50111  Ranunculus alismifolius var. alismellus Vernon Oswald 1990-5-9 4195 Butte Near Butte Creek upstream from Cherry Hill Campground, ca. 1.5 miles west-southwest of Jonesville. In a meadow bordering the north side of Butte Creek. 1438 Comment
  CHSC38155  Ranunculus aquatilis var. aquatilis Vernon Oswald 1983-6-3 618 Butte Upper Bidwell Park, Chico, at Horseshoe Lake. Along the margin of the lake. 100 Comment
  CAS-BOT-BC379111  Ranunculus aquatilis var. diffusus M. S. Taylor; L. Ahart 1981-8-15 4183 Butte in and along west branch Feather River, 3.4 mi SW of Snag Lake, ca. 11 mi NE of Stirling City. 1615 Comment
  CAS-BOT-BC379117  Ranunculus aquatilis var. diffusus Lowell Ahart 1981-8-15 3029 Butte 1.5 mi south of Snag Lake (about 3 mi south of Jonesville) 1500 Comment
  CHSC110446  Ranunculus arvensis B. Castro 2007-4-19 1620 Butte Sacramento Valley. Ca 0.7 mi S of Chico Airport, N of Sycamore Creek and W of Cohasset Rd. In a shallow depression off N edge of Large old spoils pile, ca 550 ft W of Cohasset Rd and 310 Ft N of levee along Sycamore Creek, in area of grazed grassland and scattered shallow vernal depressions. 57 Comment
  JEPS98419  Ranunculus bonariensis var. trisepalus Lowell Ahart 2000-6-6 8460 A Butte 5 mi(air)E of;deep depression, bottom of old gold mining pit 200 yds NW of dirt road xing Oregon Gulch creek, 1/4 mi NE of cemetary, 1 1/2 mi S of Crystal Hill Oroville Dam 304 Comment
  CHSC1477  Ranunculus canus Garnett; Durbrow 1928-2-19 Butte Richardson Springs road. Comment
  CHSC38160  Ranunculus canus Vernon Oswald 1983-3-26 206 Butte Upper Bidwell Park, Chico, on the north rim ca. 0.7 mi e of the power lines. 286 Comment
  POM150698  Ranunculus canus A. A. Heller, H. E. Brown 1902-5-3 5220 Butte Near Nelson. Comment
  SEINET215121  Ranunculus occidentalis var. eisenii K. Corson 1969-4-6 7 Butte 10 mi E of Chicao on CA Hwy 32 Comment
  CHSC11353  Ranunculus occidentalis var. occidentalis Lowell Ahart 1967-3-30 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC41287  Ranunculus occidentalis var. ultramontanus S. C. Morey 1983-7-21 505 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  CHSC38033  Raphanus raphanistrum R. E. Preston 1982-11-13 364 Butte At roadside, n side of Hwy 70 at Wicks Corner, ca. 5 1/2 mi nw of Oroville. 85 Comment
  CHSC537  Raphanus raphanistrum P. Delaplane 1965-3-27 44 Butte In field at corner of Cactus and Manzanita. W. side of Cactus. Chico. 30 Comment
  SEINET13946321 Image available Rhamnus crocea Lewis S. Rose 1955-1 55104 Butte 6 mi SE of Paradise on Pentz Road; 1400 ft alt. 427 Comment
  CHSC51909  Rhamnus ilicifolia L. P. Janeway 1988-3-12 2602 Butte Low in cyn of Little Chico Cr ca 2 air mi S of Ten Mile House. Top of cliff along inner gorge. 243 Comment
  UC175332  Rhamnus purshiana A. A. Heller 1913-6-7 10821 Butte near Stirling; West Branch of the North Fork of Feather River 914 Comment
  JEPS88909  Rhamnus rubra Lowell Ahart 1994-6-5 7309 Butte about 3.5 mi sw Forbestown (s of the intersection of Black Bart Road and Forbestown Road) 609 Comment
  SEINET10493611  Rhamnus rubra subsp. obtusissima Mary Susan Taylor 1980-5-8 Taylor 2601 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
  CHSC83010  Rhamnus tomentella subsp. tomentella Lowell Ahart 2002-9-9 9937 Butte Meadow, 100 yards south of the intersection of Black Bart Road and Forbestown Road, about 3 1/2 miles (air) southwest of Forbestown. 753 Comment
  RSA104165  Rhamnus tomentella subsp. tomentella R. M. Austin 1883-1 s.n. Butte [Unspecified] Comment
  CHSC100418  Rhododendron occidentale L. P. Janeway; Heather Koeth 2008-11-17 9610 Butte Northern High Sierra Nevada. On the flats on the southwest side of Fall River at Nelsons Crossing (across from the mouth of Kenebeck Creek). 43 Comment
  CAS-BOT-BC199744  Rhododendron occidentale var. californicum A. A. Heller 1913-6-7 10800 Butte Near Stirling 1074 Comment
  CAS-BOT-BC170519  Rhus aromatica A. A. Heller 1914-3-19 11212 Butte Canyon of Big Chico Creek Comment
  CHSC25111  Rhus aromatica D. Russell Droege 1970-4-13 30 Butte At ca. 300 yards from eastern termination of Upper Bidwell Park rd. ca. 200 yds. north of Big Chico Creek, Chico. Comment
  CHSC31431  Rhynchospora capitellata L. Ahart 1980-9-10 2618 Butte Seeps, near Bean Creek Rd, se of Little Bald Rock, ne of Oroville. 1100 Comment
  CHSC59014  Rhynchospora capitellata Lowell Ahart 1992-8-2 6901 Butte On the west side of Concow Meadow, about 3 (air) miles north-east of Concow Reservoir. 1097 Comment
  RSA726311  Rhynchospora capitellata L. Ahart, L. P. Janeway, L. Hanson 2007-7-10 14278 Butte About 250 yards east of Bean Creek Road, northeast of Little Bald Rock, about 16 miles (air) northeast of Oroville. 1025 Comment
  CAS-BOT-BC212668  Ribes nevadense A. A. Heller 1919-5-17 13155 Butte Banks of the Feather River, near Stirling Comment
  CAS-BOT-BC212675  Ribes nevadense E. B. Copeland 1931-7-31 647 Butte Near Butte Creek, Jonesville Comment
  CHSC26784  Ribes nevadense M. S. Taylor 1978-5-6 1626 Butte E side of Cohasset Rd, ca. 8 mi n of Chico. 137 Comment
  CHSC33908  Rigiopappus leptocladus M. S. Taylor 1981-5-21 3770 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
  CAS-BOT-BC340982  Robinia pseudoacacia Lowell Ahart 1968-4-20 s.n. Butte Peter Ahart Ranch, Honcut 45 Comment
  CHSC40444  Rorippa curvisiliqua var. occidentalis Lowell Ahart 1985-5-31 5040 Butte About 15 feet below the high water line of Lake Oroville, about 1/2 mile south-west of the Enterprise Bridge across Lake Oroville, west of Lumpkin Road, north-east of Oroville. 274 Comment
  CHSC58261  Rorippa curvisiliqua var. orientalis Lowell Ahart 1992-3-21 6738 Butte Below the high water line of Lake Oroville, south of the Spillway Boat Launch Area, Lake Oroville. 243 Comment
  CDA32007  Rorippa nasturtium-aquaticum L. Ahart 2009-6-3 15819 Butte About 100 yards west of the table at the old homestead and about 50 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 3/4 air mile southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. Comment
  CHSC90597  Rorippa nasturtium-aquaticum S. B. Collom 1988-4-25 15 Butte Chico, 100 yds east of the 5th Street bridge, in Lindo Channel, on north side. 60 Comment
  CHSC42947  Rorippa palustris var. fernaldiana Lowell Ahart 1987-7-3 5779 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC1597  Rosa bridgesii G. Herrington 1930-5-1 Butte Paradise. 609 Comment
  CHSC93974  Rosa bridgesii R. D. Fischer 2004-6-20 755 Butte Sierra Nevada Mountains, north-east corner of Butte County and ca. 4 miles north of Butte Meadows off Scout Road. Boy Scout Camp. Collected off forest floor on the east side, north end, of Chico Meadow and adjacent Scout Road. 1371 Comment
  UC176212  Rosa bridgesii A. A. Heller 1913-6-7 10809 Butte near Stirling 1074 Comment
  CHSC113804  Rosa californica M. Ocken 2011-4-25 Butte Honeyrun Rd North side. Found along roadside at base of a slope. Roadside next to riparian. 96 Comment
  CAS-BOT-BC148123  Rosa gymnocarpa C. R. Quick 1942-8-5 42 -45 Butte Big Bar Mt. east of Pulga Comment
  CHSC50340  Rosa gymnocarpa Vernon Oswald 1990-5-14 4216 Butte Big Bald Rock located ca. 3 miles south of Brush Creek. At the picnic area. 966 Comment
  CHSC1590  Rosa pisocarpa subsp. ahartii A. Goekler 1928-5-25 Butte Bidwell Park. 121 Comment
  SEINET7545148  Rosa pisocarpa subsp. ahartii B. Ertter, L. Ahart 2007-1 19074 Butte Black Bart Road 1.3 miles from lower junction with Forbestown Road, ca. 10 airmiles ESE of Oroville 655 Comment
  CHSC43127  Rosa pisocarpa subsp. pisocarpa L. P. Janeway 1987-6-13 2212 Butte Edge of mdw just NE of jct of Concow Rd and the road to Flea Mtn. 1188 Comment
  CHSC3640  Rosmarinus officinalis Alice L. Stoll 1966-2-16 9 Butte On Chico State College Campus, Chico. Comment
  CDA5119  Rotala indica G. D. Barbe, June McCaskill 1990-9-5 4369 a Butte Experimental fields of the Rice Experiment Station, West Hamilton Road at Riceton Highway, north of Biggs. 0 Comment
  CHSC78858  Rotala indica Lowell Ahart 2000-10-15 8707 Butte Strand of the Thermalito Afterbay, on the south side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 42 Comment
  CHSC113535  Rotala ramosior Lowell Ahart 2014-9-23 19866 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
  CHSC23537  Rubus armeniacus M. S. Taylor 1976-3-16 1027 Butte On n side of Butte Creek, ca. 5 ft w of Honey Run Bridge, ca. 8 mi e of Chico. 152 Comment
  POM366458  Rubus discolor L. Ahart, P. Ahart 1984-6-10 4716 Butte About 2 miles SW of Forbestown Diversion Dam. NE of Forbestown. 700 Comment
  CHSC30769  Rubus glaucifolius M. S. Taylor 1980-9-12 3329 Butte W side of Hwy 32, ca. 3 mi n of Forest Ranch, near Forest Ranch Fire Control Station, ca. 50 ft w of the Hwy, n of a dirt rd. 975 Comment
  CHSC29107  Rubus laciniatus M. S. Taylor; J. D. Jokerst 1980-4-27 2556 Butte Along Middle Butte Creek off of Little Butte Creek, ca. 1 1/2 mi se of Ninshew. 609 Comment
  SBBG3096  Rubus laciniatus H. and M. Dearing 1938-6-21 2048 Butte 20 mi NE of Chico, near Shuffleston Station Comment
  SEINET10483595  Rubus parviflorus Mary Susan Taylor 1980-5-27 Taylor 2732 Butte On N side of Bald Rock Road, ca. 0.5 mi E of its jct with Oroville-Quincy Hwy, ca. 0.5 mi S of Lake Madrone; granitic soils. 701 Comment
  CHSC111370  Rubus ursinus Lowell Ahart 2012-5-14 18058 Butte 100 feet east of Table 13, south of Big Chico Creek, on the north side of the paved road, Lower Bidwell Park, Chico. 76 Comment
  JEPS115605  Rubus ursinus Lowell Ahart 2009-5-23 15736 Butte Along the west edge of a meadow and the east bank of Big Chico Creek, west of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 236 Comment
  JEPS118355  Rubus ursinus Lowell Ahart 2011-8-17 17623 Butte On the east side of Big Chico Creek, about 40 yards west of Ten Mile House Road, about 3/4 mile (air) west of Highway 32, about 9 miles (air) northeast of Chico 197 Comment
  CHSC45385  Rumex dentatus subsp. klotzschianus Vernon Oswald 1985-5-8 1750 Butte Graylodge Waterfowl Management Area near Parking Lot #5 on Rutherford Rd. Common in the bottom of a drying pond which was vernally wet. Comment
  UCD101368  Rumex obtusifolius L. Ahart 1982-9-13 3807 Butte Pinkard Creek, ca. 1/8 mi. N of Lost Creek Reservoir Dam. Ca. 2.2 mi. NW of Strawberry Valley. 1100 Comment
  CHSC43715  Rumex salicifolius var. denticulatus Vernon Oswald 1987-5-6 2377 Butte Butte Creek Reserve ca. 0.1 mi e of Hwy 99 on the n side of Butte Creek. 67 Comment
  CHSC99487  Rumex salicifolius var. salicifolius Lowell Ahart 2008-6-13 14832 Butte Bottom of Oregon Gulch, about 50 yards west of the road culvert across Oregon Gulch, bottom of an old gold mined area, about 150 yards south of the cemetery, about 10 miles (air) northeast of Oroville. 305 Comment
  CAS-BOT-BC434167  Rumex triangulivalvis A. A. Heller 1928-7-25 14702 Butte Butte Creek House Comment
  CHSC38298  Sagina apetala Vernon Oswald 1983-4-4 279 Butte Upper Bidwell Park, Chico, on the north rim ca. 500 ft e of the power lines. 249 Comment
  SEINET11924839  Sagina apetala Unknown 1974-1 391 Butte Peter Ahart Ranch, about 0.5 m N and 2 mi E of Honcut, about 12 mi S of Oroville 150 Comment
  CHSC35032  Sagina saginoides R. Schlising; R. Banchero 1980-7-14 3897 Butte 4.3 miles N of Inskip (= 0.8 miles N of jct Skyway and Bull Hill Road to Butte Meadows). 1539 Comment
  CHSC48261  Sagina saginoides Vernon Oswald 1987-5-12 2393 Butte Butte Creek Reserve on the s side of Butte Creek, n of the Skyway, between Crouch Ditch dam and the double set of transmission lines. On the edge of Butte Creek. 80 Comment
  POM313178  Sagittaria sanfordii H. L. Mason, Verne Grant 1946-8-8 13001 Butte West Gridley road one mile west of Gridley - Pennington highway. Comment
  UCD138068  Sagittaria sanfordii J. Jones 1924-11-20 s.n. Butte Biggs. Comment
  CAS-BOT-BC103735  Salix exigua M. S. Taylor 1982-5-22 4498 Butte Graylodge Wildlife Refuge, at end of West Liberty Rd, ca. 12 mi sw of Gridley. Pennington quad. 19 Comment
  RSA129740  Salix exigua J. E. Sowder 1933-6-6 82 Butte 1 mile NW of Nelson's Bar. 457 Comment
  SBBG126099  Salix exigua L. Ahart 2012-6-2 18139 Butte small stream, W of a poor dirt rd, ca 40 yards N of Truex Rd, W of intersection of Truex Rd and Trevor Rd, ca 1/8 mi NW of the W Branch Bridge across Lake Oroville 286 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
  POM218987  Salix geyeriana var. argentea E. B. Copeland 1931-6-10 618 Butte Jonesville, Butte Creek. 1500 Comment
  SEINET11991647  Salix gooddingii var. variabilis J. D. Jokerst 1982-1 1543 Butte Grey Lodge Waterfowl Man. Area, along road running N of Rutheford Rd to N Comment
  UC456789  Salix laevigata E. B. Copeland 1931-5-8 Butte 5-mile dam Chico Comment
  CAS-BOT-BC125176  Salix lasiandra var. lasiandra A. A. Heller 1917-7-26 12812 Butte Butte Meadows 1280 Comment
  CHSC108851  Salix lasiolepis Lowell Ahart 2012-3-9 17772 -A Butte West bank of North Honcut Creek, Peter Ahart Ranch, about 1-1/2 miles north and 2-3/4 miles east of Honcut, about 12 miles southeast of Oroville. 44 Comment
  CHSC108853  Salix lasiolepis Lowell Ahart 2012-3-9 17773 Butte Middle of North Honcut Crek, 30 yards east of the floodgate, Peter Ahart Ranch, about 1 mile north and 2 -1/2 miles east of Honcut, about 12 miles southeast of Oroville. 39 Comment
  SD130407  Salix lemmonii John Thomas Howell 1967-5-9 42240 Butte Canyonside on northwest side of Feather River near Pulga Bridge Comment
  SD925  Salix lemmonii E. B. Copeland 1931-6-11 620 a Butte Jonesville; Kirby's Meadow 1750 Comment
  CHSC21074  Salix lucida subsp. lasiandra M. S. Taylor 1975-10-3 942 Butte Sacramento River, ca. 10 mi w of Chico. 36 Comment
  CHSC52198  Salvia sonomensis L. P. Janeway 1988-5-19 2670 Butte Along Cohasset Rd near the Anderson Mill site; near the county line. 1133 Comment
  UC1562489  Sambucus racemosa var. microbotrys Vernon Oswald and Lowell Ahart 1990-6-20 4309 Butte s side of creek ca 0.5 mi w Butte-Plumas County line (between Philbrook Reservoir and Carr Mine); Philbrook Creek 1965 Comment
  CHSC90615  Sanicula bipinnata Chris Ottinger 1983-3-15 17 Butte Ca. 0.6 km sw of Covered Bridge, s side of Butte Creek, 10.2 km ese of Chico. 120 Comment
  UC73328  Sanicula bipinnata Miss M. Alice King 1905-1 Butte near College City (Sacramento Valley); Sacramento Valley Comment
  UC195452  Sanicula bipinnatifida A. A. Heller 1914-3-18 11206 Butte 8 mi n of Oroville (near w base of Table Mountain); Table Mountain Comment
  SEINET10454658  Sanicula crassicaulis Mary Susan Taylor 1979-3-31 Taylor 1971 Butte Junction of Pentz-Magalia Hwy and Pentz Road, ca. 1/4 mi W of Hwy 70, ca. 22 mi N of Oroville; Valley Grassland. 198 Comment
  UC875484  Sanicula graveolens A. A. Heller 1917-7-29 12856 Butte summit above Jonesville 2133 Comment
  CHSC1985  Sanicula tuberosa A. Goekler 1929-4-21 Butte Paradise. 609 Comment
  CHSC32622  Sanicula tuberosa M. S. Taylor; L. Hanson 1981-3-31 3455 Butte Serpentine ridge, n side of spur rd 1/4 mi w of its jct w Ponderosa Way (Rim Rd, rd to Flea Valley), ca. 3 mi n of its jct with Hwy 70 at Jarbo Gap, ca. 20 air mi n of Oroville. 792 Comment
  CHSC46328  Sanicula tuberosa Lowell Ahart 1989-5-29 6326 Butte On a lava cap, near the dirt road, east of Mooreville Ridge, about 2 air miles north of the Lost Creek Dam, south of the west branch of Pinkard Creek. 1188 Comment
  CHSC99561  Sanicula tuberosa L. P. Janeway 2008-6-15 9410 Butte High Cascade Range. North end of Carpenter Ridge; south side of Humboldt Road 5.0 road km northeast of Hwy 32. 1417 Comment
  JEPS117134  Sanicula tuberosa Lowell Ahart 2010-5-7 16621 Butte On the south side of a trail, west of disk golf area, on a ridge about 350 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 353 Comment
  POM82756  Sanicula tuberosa C. C. Bruce 1897-03 s.n. Butte Little Chico Comment
  SEINET3450850  Sanicula tuberosa Unknown 2003-4-15 10101 Butte Oroville, Oroville, about 7 air miles north, North Table Mountain, about 1.25 miles northwest of the iron gate and fence, northwest of Cherokee Road, steep slopes of Beatson Hollow 280 Comment
Read comments
May 5 2015
  UC1605152  Sanicula tuberosa Vernon H. Oswald and Lowell Ahart 1993-4-19 5278 Butte ENE of Magalia (Rattlesnake Creek Trail from Jordan Hill Rd to Sawmill Pk. Lookout, between the creek and the lookout) 701 Comment
  UCD114699  Sanicula tuberosa Christopher Mallek 2008-1 HW1- 17 Butte Magalia. 756 Comment
  SEINET10972971  Sanicula tuberosa Mary Susan Taylor 1981-3-31 Taylor 3455 Butte T22N R4E ne sec 12. Pulga SW quad. N side of spur rd 1/4 mi w of its jct with Ponderosa Way (Rim Rd), ca. 5 air mi n of its jct with Hwy 70 at Jarbo Gap, 18 air mi ne of Oroville; 2600 ft. 792 Comment
  JEPS119921  Saponaria officinalis Lowell Ahart 2012-10-20 18497 Butte On the south side of Big Chico Creek, about 50 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  UC474270  Sarcodes sanguinea H. F. Copeland 1922-5-22 224 Butte Jonesville Comment
  CAS-BOT-BC436863  Saxifraga Lowell Ahart 1975-3-18 s.n. Butte Peter Ahart Ranch, Honcut 45 Comment
  CHSC2824  Scandix pecten-veneris David Prall 1965-4-25 32 Butte South side of Humbug Rd. 0.3 miles west of junction with Honey Run rd. (covered bridge). 198 Comment
  CHSC25  Sceptridium multifidum Mr. Wheelock 1943-11-1 Butte Above Stirling. 1158 Comment
  CAS-BOT-BC111373  Schoenoplectus acutus var. occidentalis M. S. Taylor 1977-11-12 1539 Butte At edge of Big Chico Creek at end of Upper Bidwell Park Rd 304 Comment
  CAS-BOT-BC111374  Schoenoplectus acutus var. occidentalis Lowell Ahart 1981-8-31 3061 Butte Wyandotte Lake, E or Oroville. 450 Comment
  CHSC4428  Schoenoplectus acutus var. occidentalis 1966-5-21 Butte Bare Hole, Upper Bidwell Park, Chico. Comment
  CHSC88471  Schoenoplectus mucronatus L. P. Janeway; Gail Kuenster 2004-6-29 8172 Butte Northern Sierra Nevada Foothills. Cove on south side of South Fork Feather River arm of Lake Oroville between Stringtown Mountain and Stringtown Road. 280 Comment
  CAS-BOT-BC111651  Schoenoplectus mucronatus Lowell Ahart 1976-9-18 s.n. Butte Peter Ahart Ranch, Honcut. 150 Comment
  SEINET10502775  Scirpus Mary Susan Taylor 1980-6-7 Taylor 2790 Butte S side of Hwy 162, at Butte County/ Glenn County border, ca. 20 mi N of Chico. 30 Comment
  CHSC56796  Scirpus congdonii L. P. Janeway 1988-7-29 3131 Butte Meadow near Humbug Summit Road, 1.5 mi northeast of the Snag Lake dam. 1767 Comment
  CAS-BOT-BC22402  Scirpus congdonii L. P. Janeway; Robert A. Schlising 1988-7-22 3073 Butte Canyon of Philbrook Creek; seep just above the High Lakes Road 3.r mi west of the pass, Jonesville quad (15') 1905 Comment
  UC600702  Scirpus diffusus H. F. Copeland 1928-8-17 1072 Butte Jonesville 1524 Comment
  UC1100919  Scirpus maritimus Herbert L. Mason, Verne Grant 1946-8-15 13046 Butte Greylodge Game Refuge near caretaker's house; Butte Sink, Greylodge Game Refuge Comment
  CAS-BOT-BC110893  Scirpus microcarpus A. A. Heller 1914-8-6 11638 Butte Sierra Nevada at Chico Meadows 1219 Comment
  CHSC82426  Scleranthus annuus subsp. annuus Lowell Ahart 2002-5-7 9618 Butte High banks of a pond, at the beginning of a southeast branch of Schirmer Ravine, about 50 yards east of the pond on the east side of Cherokee Road, North Table Mountain, about 4 miles (air) north of Oroville. 228 Comment
  CAS-BOT-BC239956  Scribneria bolanderi Lowell Ahart 1980-5-4 2173 Butte Thermalito 65 Comment
  CHSC6076  Scribneria bolanderi B. Wilson 1968-4-19 177 Butte 2 mi s of Cherokee on Table Mountain. Comment
  CHSC78227  Scribneria bolanderi Lowell Ahart 2000-6-4 8442 Butte In the small meadow south of the intersection of Black Bart Road and Forbestown Road, about 3 1/2 miles (air) southwest of Forbestown. 731 Comment
  SEINET10548805  Scrophularia californica Mary Susan Taylor 1975-2-16 Taylor 372 Butte Ca. 1/4 mi W of Pentz-Magalia Hwy, ca. 5 mi S of Paradise, in vicinity of Lime Saddle Reservoir. Foothill Woodland. Comment
  HSC96904  Scutellaria californica L. Ahart 2006-6-9 12658 Butte On N side of Bardees Bar Rd., ca. 1/8 mi. NW of the poor bridge across the N Fork of the Feather River at Bardees Bar, about 2 3/4 mi. SW of Pulga 386 Comment
  RSA755761  Scutellaria californica L. Ahart 2009-5-23 15762 Butte About 30-40 yards west of Guardians, Trail, about 100 yards northeast of Pine Trial, Upper Bidwell park, about 3/8 air mile southwest of the intersection of Highway 2 and Ten Mile House Road, about 10 miles northeast of Chico. 382 Comment
  CHSC52202  Scutellaria siphocampyloides L. P. Janeway 1989-5-19 3264 Butte Near upper SE branches of Rattlesnake Cr ca 2.3 road mi from bridge over W Br Feather River via the rd to Sawmill Pk. 807 Comment
  CHSC24138  Sedella pumila B. Bunge 1976-3-3 1 Butte Ca. 100 yd e of Cherokee Rd on Table Mt. 6.5 mi n of Oroville. 396 Comment
  POM142368  Sedella pumila A. A. Heller, H. E. Brown 1902-5-7 5486 Butte Berry Canyon (Near Clear Creek). From the type region. Comment
  SBBG17106  Sedum spathulifolium M. Vincent 1962-4-18 211 Butte near Feather River at Hells Town Comment
  SEINET10449688  Sedum spathulifolium subsp. purdyi Mary Susan Taylor 1980-5-27 Taylor 2689 Butte T21N R6E sc sec 30. Big Bend quad. On Big Bald Rock, ca. 3 mi E of Lake Madrone; Yellow Pine Forest, large granite dome 998 Comment
  CAS-BOT-BC62115  Selaginella hansenii W. I. Follett 1948-6-6 s.n. Butte West branch of Feather River at Dark Canyon 182 Comment
  SEINET10470989  Selaginella hansenii Lewis S. Rose 1945-5-12 Rose 45039 Butte Richardson Springs, 1000 feet. 305 Comment
  SEINET10530445  Selaginella wallacei Mary Susan Taylor 1980-5-27 Taylor 2666 Butte T21N R6E sc sec 30. Big Bend quad. On Big Bald Rock, ca. 3 mi E of Lake Madrone; Yellow Pine Forest, large granite dome 998 Comment
  SEINET10474901  Senecio aronicoides Mary Susan Taylor 1979-7-21 Taylor 2163 Butte Humboldt Peak, at Humboldt Summit, tallest point in the county, on Butte- Tehama County line. 2155 Comment
  CDA13874  Senecio eurycephalus var. lewisrosei G. F. Hrusa, T. D. Wilfred 1997-5-7 13732 Butte Sierra Nevada; above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. Comment
  CHSC86440  Senecio eurycephalus var. lewisrosei Jenny Marr 1993-7-1 92 Butte Located in Northern Sierra Nevada, between Concow and Pulga, on a serpentine outcrop belonging to LNF. Site approx. 4 air miles NE of Concow Reservoir. 1105 Comment
  NY233356  Senecio lewisrosei L. S. Rose 1939-6-7 39247 Butte North Fork of Feather River, 3 miles south of Pulga 609.6 Comment
  CHSC103954  Senecio sylvaticus Lowell Ahart 2010-5-20 16707 Butte On both sides of the Yahi Trail, east if the dirt road, west of Big Chico Creek, Upper Bidwell Park, about 6 miles (air) northeast of Chico. 182 Comment
  CHSC71164  Senecio sylvaticus Lowell Ahart 1998-6-3 7966 Butte About 1/4 mile north of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  JEPS117292  Senecio triangularis Lowell Ahart 2010-9-21 17206 Butte Open meadow like area in red fir forest, about 70 yards east of the poor dirt road, about 80 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir 1917 Comment
  CHSC113358  Senecio vulgaris Lowell Ahart 2014-4-25 19394 Butte Sides of a cleaned ditch, on the west side of Richvale South Highway, south of the intersection of Richvale West Road and Richvale South Highway, Richvale. 30 Comment
  CHSC4002  Senecio vulgaris L. R. Alexander 1967-3-20 9 Butte Chico. Found at Almond Grove Trailor Park 567 E. Lassen Ave. Space 506. 59 Comment
  CHSC96618  Senecio vulgaris Lowell Ahart 2007-3-7 13588 Butte Around buildings, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 31 Comment
  SEINET10938099  Senecio vulgaris Mary Susan Taylor 1982-4-28 Taylor 4354 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
  CHSC65189  Setaria gracilis Lowell Ahart 1995-8-19 7615 Butte East side of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 3/4 miles east of Honcut, about 12 miles south-east of Oroville. 36 Comment
  JEPS98268  Setaria gracilis Lowell Ahart 2000-5-17 8365 Butte 7 1/2 air miles W of Oroville (S margin of Thermalito Afterbay, N side of the poor dirt road, about 1/10 mi N of the Richvale Hwy, 1/2 mi E of Hwy 99) 42 Comment
  CHSC47639  Setaria pumila Lowell Ahart 1977-8-14 1550 Butte In a slough, Peter Ahart Ranch, about 1 mile north and 1/4 mile east of Honcut, about 12 miles south of Oroville. 33 Comment
  CHSC69740  Setaria pumila Lowell Ahart 1997-10-24 7936 Butte About 200 yards north of the South Fork of the Feather River and on the east side of Sucker Creek, strand of Lake Oroville, about 1/4 mile west of the Ponderosa Dam. 274 Comment
  JEPS119849  Setaria pumila subsp. pumila Lowell Ahart 2012-6-28 18229 Butte On the entrance to Lower Bidwell Park, north of Woodland Avenue, Chico. Comment
  CHSC1046  Sidalcea calycosa R. M. Staley 1952-6-28 Butte Honey Run. 304 Comment
  RSA702150  Sidalcea calycosa subsp. calycosa R. D. Fischer 2004-6-6 444 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located at junction of Guardian Trial and Pine. Comment
  CHSC107239  Sidalcea diploscypha Lowell Ahart 2011-5-27 17357 Butte On damp brown to black clay soil, about 150 yards west of the west edge (dredged area) of North Honcut Creek, about 2 1/2 north and 2 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville. 65 Comment
  CHSC10820  Sidalcea diploscypha Lowell Ahart 1972-5-20 Butte Peter Ahart Ranch, Honcut. 45 Comment
  UC1586587  Sidalcea diploscypha Vernon H. Oswald and Lowell Ahart 1991-5-31 4635 Butte on the sw side Glen Pond (Dan Beebe Trail in the Lake Oroville State Recreation Area, on the s side of Thermalito Diversion Pool); Lake Oroville State Recreation ARea, sw side Glen Pond Comment
  CHSC100866  Sidalcea gigantea B. Castro; David Toren 2005-7-21 1520 Butte Ca 9 air mi NE of Paradise, and 2.5 mi NE of Flea Mtn, at the crossing of Lockerman Ck by USFS Rd 24N13. Ca 200 ft from W edge of ck. 950 Comment
  CHSC34952  Sidalcea gigantea R. A. Schlising; C. A. Lawler 1981-8-8 4190 Butte Near N end of Concow Reservoir. Comment
  CHSC1060  Sidalcea glaucescens V. Holt 1935-8-1 Butte De Sabla. 762 Comment
  CHSC52444  Sidalcea hartwegii Laraine Roothoff 1979-4-24 16 Butte Moderate-size population on the S side of Skyway, ca. 4 mi W of Paradise. 304 Comment
  CHSC90977  Sidalcea hartwegii Lowell Ahart 2005-5-11 11808 Butte Along Hendricks Ditch, near a small stream, open pasture field, about 1 1/4 miles south of Beatson Hollow, about 1 1/2 miles southwest of the poor dirt road off of Cherokee Road, south part of North Table Mountain, about 7 miles (air) north of Oroville. 276 Comment
  RSA754584  Sidalcea hartwegii L. Ahart 2009-4-22 15583 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
  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
  POM84689  Sidalcea hartwegii C. C. Bruce 1898-05 2389 Butte No location given Comment
  UC1594540  Sidalcea hirsuta Lowell Ahart 1992-5-23 6771 Butte n side of Biggs Princeton Road about 2 mi w Biggs; w of Biggs 30 Comment
  SEINET10937542  Sidalcea malviflora subsp. asprella Mary Susan Taylor 1982-8-16 Taylor 4996 Butte T24N R4E se/se sec 11. Pulga NW quad. At seep and creek crossing rd to Bald Mt, ca. 1/4 mi sw of Bald Mt, ca. 3 mi ne of Stirling City. Mixed Evergreen Forest; 5400 ft. 1646 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
  SEINET5060650  Sidalcea robusta Unknown 1915-5-17 11879 Butte Uplands along Chico creek 5 miles E of Chico Comment
  CHSC45556  Silene antirrhina Lowell Ahart 1980-5-25 2343 Butte Near the edge of Ponderosa Way, about 1 1/2 miles south of the Ponderosa Dam, about 2 miles north-west of Forbestown. 457 Comment
  CAS-BOT-BC384467  Silene antirrhina Lowell Ahart 1979-5-29 s.n. Butte 2 1/2 mi. se of Paradise. NE of Kunkle Res. 500 Comment
  CAS-BOT-BC384469  Silene antirrhina Lowell Ahart 1980-5-25 2343 Butte Along Ponderosa Way 500 Comment
  CHSC91476  Silene lemmonii L. P. Janeway 2005-6-26 8438 Butte Northern High Sierra Nevada. In young timber plantation along Road 24N13 at Plumas County line; ridge between Lockerman Creek and Cedar Creek. 1305 Comment
  UC600622  Silene lemmonii H. F. Copeland 1930-7-21 Butte Jonesville Comment
  SEINET10537590  Silene lemmonii Mary Susan Taylor 1978-6-24 Taylor 1651 Butte Montane Meadow, on N side of Scotts John Road, ca. 3 mi E of its junction with Old Humboldt Road, ca. 5 mi E of Jones ville; Yellow Pine Forest. 1676 Comment
  RSA0002350  Silene occidentalis subsp. longistipitata E. B. Copeland 1930-7-28 635 Butte Jonesville. 1550 Comment
  CHSC10688  Sisymbrium officinale Lowell Ahart 1962-4-26 Butte Ahart Ranch, Honcut. 45 Comment
  CHSC29735  Sisymbrium officinale J. D. Jokerst 1980-4-17 593 Butte Top of North Table Mt. 472 Comment
  CAS-BOT-BC135398  Sisyrinchium John Thomas Howell 1962-6-15 37518 Butte Magalia - Sierra Nevada 731 Comment
  JEPS108778  Sisyrinchium bellum Lowell Ahart 2006-7-16 12998 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
  SEINET4171045  Sisyrinchium bellum A. A. Heller 1938-7-20 Butte Snag Lake, 7 mi. E of Chaparral. 2134 Comment
  RSA0118931  Solanum americanum Lowell Ahart 2013-11-13 19248 Butte Below the high water line of Lake Oroville, along the sides of Sucker Creek, about 30 yards north of the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 244 Comment
  NY821124  Solanum parishii H. M. Edwards 06 1917 s.n. Butte De Sabla Comment
  UCSB63941  Solanum parishii Lorenz, Thomas 1972-4-23 Butte 7.6 mi 8 of highway 99E overpass and 20 ft below high 32 Comment
  CHSC31457  Solanum physalifolium var. nitidibaccatum L. Ahart 1980-10-27 2691 Butte In the garden, Peter Ahart Ranch, Honcut. 50 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
  UC1125062  Solanum umbelliferum C. G. Albertus 1933-6-26 32 Butte 1/2 mi s of Nelson's Bar 365 Comment
  CHSC108785  Sonchus asper subsp. asper L. P. Janeway 2011-6-7 10363 Butte Sacramento Valley. Along Nelson Ave 1.0 road km west of its bridge over Thermalito Forebay, about 5.7 air km west of Oroville. Weedy edge of road side drainage. 99 Comment
  JEPS118736  Sonchus asper subsp. asper L. P. Janeway 2011-6-7 10363 Butte Sacramento Valley. Along Nelson Ave 1.0 road km west of its bridge over Thermalito Forebay, about 5.7 air km west of Oroville. Oroville 7.5' quad. Comment
  UC726090  Sorbus californica A. A. Heller 1928-7-25 14706 Butte Butte Creek House Jonesville Comment
  CAS-BOT-BC235259  Sorghum bicolor John Thomas Howell 1951-8-19 28152 Butte North Fork Feather River 243 Comment
  CHSC4389  Sorghum halepense V. Hagaman 1966-5-21 Butte Lower Bidwell Park along side of rd. by overpass. Comment
  RSA129483  Sorghum halepense H. S. Yates 1936-8-14 6124 Butte 10 miles S. of Durham 30 Comment
  UCR188719  Sorghum halepense George K. Helmkamp, E. A. Helmkamp 2007-10-7 13070 Butte Northern Sacramento Valley, East Gridley Road at the west edge of the Feather River bridge 27 Comment
  UCR219103  Sorghum halepense George K. Helmkamp, E. A. Helmkamp 2009-9-5 15601 Butte Sacramento Valley, Honcut, on Palermo-Honcut Highway, 0.1 mile north of Lower Honcut Road 35 Comment
  SEINET10594682  Sorghum halepense Prouty 1980-1 PROUTY 80 .97 Butte Along Cherokee Rd., ca. 0.8 mi n of jctn. with Thompson Flat Rd. Comment
  SEINET10954087  Sorghum halepense Lowell Ahart 1999-10-28 Ahart 8318 Butte T20N, R1W, Section not surveyed. Large disturbed area along the east side of the Sacramento River, northwest of Parrott Landing, aout 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CDA20087  Spartium junceum R. Harrie 2003-1-13 PDR 1280328 Butte Northern California; Old mine site. 0 Comment
  SEINET10452463  Spartium junceum Mary Susan Taylor 1975-4-26 Taylor 524 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
  CHSC93365  Spergula arvensis subsp. arvensis Lowell Ahart 2006-4-23 12533 Butte On the east side of Cherokee Road, about 200 yards south of the cattle chute and parking area on the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 424 Comment
  CHSC91098  Spergularia bocconi Lowell Ahart 2005-5-28 11827 Butte Bottom of vernal pools, 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. 67 Comment
  JEPS107747  Spergularia bocconi Lowell Ahart 2005-5-28 11827 Butte Bottom of vernal pools, 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 67 Comment
  CAS-BOT-BC390601  Spergularia rubra Lowell Ahart 1983-8-16 4309 Butte Near Bull Hill Road, about 3 1/2 miles south of Butte Meadows 1600 Comment
  SEINET10537505  Spergularia rubra Mary Susan Taylor 1980-10-6 Taylor 3360 Butte T23N R5E se sec 15, Pulga quad. S side of Hwy 70, ca. 0.4 mi W of Bear Creek jct with N Fork Feather River, ca. 0.5 mi W of Arch Rock Tunnel Rest Stop, near Butte-Plumas county line; granitic soils. 488 Comment
  CHSC113962  Sphenosciadium capitellatum Lowell Ahart 2014-7-13 19648 Butte North part of a large wet meadow (some bog), about 100 yards southeast of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC11996  Spiraea densiflora E. B. Copeland 1931-6-19 649 Butte Jonesville. At 'the Summit. 2100 Comment
  UC1128715  Spiraea douglasii P. L. Johannsen 1936-7-21 955 Butte 1 mi ene Chaparral House; Lassen National Forest, Paynes Creek Quad. 1554 Comment
  UC398924  Spiraea douglasii E. B. Copeland 1929-7-15 374 Butte Jonesville 1500 Comment
  CHSC103172  Spirodela punctata Lowell Ahart 2009-11-19 16557 Butte About 40 yards southwest of table, about 100 yards south of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) west of Highway 32, about 10 miles northeast of Chico. 242 Comment
  SEINET10498819  Stachys palustris subsp. pilosa Lowell Ahart 1983-8-16 Ahart 4288 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
  UC2055631  Stachys pycnantha C. Epling, Mrs. Epling Aug 1, 1935-Aug 15, 1935 Butte Bidwell Park. Comment
  UC884287 Image available Stachys pycnantha A. A. Heller 1914-7-23 11592 Butte Chico Meadows Sierra Nevada. 1219 Comment
  SD6179  Stachys rigida var. rigida E. B. Copeland 1930-7-20 Butte Jonesville 1500 Comment
  UC1609330  Stellaria crispa Lowell Ahart 1993-10-3 7268 Butte about 2 mi ne Coyote Gap (w branch of Wildcat Creek, on the s side) 1402 Comment
  CHSC26847  Stellaria longifolia M. S. Taylor; M. Hayes 1978-6-24 1637 Butte On Ernies Island in Butte Creek at its jct with Old Humboldt Rd, ca. 1/2 mi w of Butte Meadows. 1371 Comment
  CHSC101093  Stellaria media Lowell Ahart; John Dittes 2009-3-20 15507 Butte Open area west of the Guardian Rock Trail, about 175 yards southwest of the Ten Mile House Road Trail, about 300 yards west of Highway 32, west of the intersection of Highway 32 and Ten Mile House Road, Upper Bidwell Park, about 10 miles northeast of Chico. 407 Comment
  CHSC112349  Stellaria media L. P. Janeway 2014-4-9 11221 Butte Northern High Sierra Nevada. Plumas National Forest; along Road 22N12Xwhere it crosses Peavine Creek just below the confluence of Coon Creek; French Creek Basin. 762 Comment
  CHSC26467  Stellaria media P. Moyer 1972-3-4 113 Butte CSUC Campus. 2nd and Ivy to 2nd and Cherry. 60 Comment
  CHSC48280  Stellaria obtusa Vernon Oswald 1987-6-9 2975 Butte Ca. 3 mi ne of Jonesville on the road paralleling Scotts John Creek, 2 mi n of the road connecting Humboldt and Humbug roads. Near the creek. 1828 Comment
  UC1609204  Stellaria obtusa Lowell Ahart 1993-9-13 7229 Butte about 1 mi se Butte Meadows (on s side of Bolt Creek) 1325 Comment
  CHSC70721  Stellaria pallida Vernon Oswald 1998-3-11 8887 Butte Northern Sacramento Valley. Wurlitzer Unit, Vina Plains Preserve. Along the north fence line just east of gate on Haille Rd. 57 Comment
  RSA712799  Streptanthus polygaloides L. P. Janeway 2005-6-26 8431 Butte South-facing slope 0.4 km. south of top of Batchelor Point, 0.6 km. east of top of Rocky Ridge and Rim Road (Ponderosa Way). 945 Comment
  POM117399  Streptanthus polygaloides C. C. Bruce 1897-04 1942 Butte Nelson s bar. Comment
  CHSC38054  Streptanthus tortuosus R. E. Preston 1983-5-26 384 Butte Roadside, Hwy 70 ca. 1 3/4 mi SW of Pulga. 548 Comment
  HSC36683  Streptanthus tortuosus Patricia Datzman 1974-4-20 29 Butte N end of Table Mtn., near Oroville 305 Comment
  RSA32715  Streptanthus tortuosus var. suffrutescens A. A. Heller 1938-4-14 15031 Butte Treeless summit of Table Mtn. Comment
  CAS-BOT-BC48066  Styrax redivivus Lowell Ahart 1966-5-10 s.n. Butte Bidwell Bar, now the are is under Lake Oroville. 500 Comment
  CHSC45265  Subularia aquatica var. americana V. Oswald; L. Ahart 1988-10-6 3704 Butte Summit Lake located ca. 4 mi (air) se of Jonesville. On the south strand of the lake. 1889 Comment
  CHSC39670  Swertia albicaulis var. nitida Lowell Ahart 1983-6-21 4085 Butte Found along Bloomer Hill Road, about 1 1/4 miles west of the Oroville quincy Highway, about 15 miles northeast of Oroville. 450 Comment
  POM193326  Symphoricarpos acutus E. B. Copeland 1930-7-7 479 Butte Jonesville. 1600 Comment
  CHSC101122  Symphoricarpos albus var. laevigatus Lowell Ahart 2009-5-23 15731 Butte On the west edge of a meadow and the east bank of Big Chico Creek, west of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 236 Comment
  CAS-BOT-BC234612  Symphoricarpos mollis Vernon Oswald; Lowell Ahart 1987-7-1 3055 Butte Scotts John Rd. 1.3 mi n of the road connecting Humboldt and Humbug Rds, ca. 2.5 mi ene of Jonesville. On the w side of Scotts John Creek 1828 Comment
  CHSC30396  Symphyotrichum ascendens Diane H. Ikeda 1979-9-2 159 Butte On Humboldt Rd. at Butte Crk., 5.3 mi NE of the junction of Hwy 32 and Humboldt Rd. 1341 Comment
  CHSC65886  Symphyotrichum lanceolatum var. hesperium Vernon H. Oswald 1996-4-20 7401 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Sacra-mento Valley. 32 Comment
  CHSC94580  Symphyotrichum spathulatum var. spathulatum Lowell Ahart 2006-9-9 13245 Butte West side of a large meadow with bogs, about 75 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1560 Comment
  CHSC30398  Symphyotrichum subulatum var. parviflorum Diane H. Ikeda 1979-9-23 161 Butte SW of Chico, just E of Ord Ferry and Sacramento River. 30 Comment
  UCD136687  Symphyotrichum subulatum var. parviflorum E. M. Johnston 1915-1 s.n. Butte Biggs. Comment
  CAS-BOT-BC221935  Taeniatherum caput-medusae John Thomas Howell 1967-6-22 42628 Butte Magalia 701 Comment
  CHSC7106  Taraxacum officinale Harley J. Parmenter 1969-4-4 18 Butte 10 yds. n of Keefer Road, .8 mi w of Cohasset Road. 91 Comment
  UC106147  Tauschia hartwegii Mrs. R. M. Austin Mar. 1896 Butte Little Chico Creek Comment
  SEINET5334384  Tetrapteron graciliflorum K. Conger 1908-1 s.n. Butte Brush Creek Comment
  CHSC48832  Thalictrum fendleri var. fendleri Vernon Oswald 1983-8-17 997 Butte Pacific Crest Trail ca. 2000 ft e of Humboldt Summit, n-e of Jonesville. 2011 Comment
  CHSC52196  Thalictrum fendleri var. polycarpum L. P. Janeway 1989-5-11 3232 Butte Along Deadwood Cr at jct of Concow and Jordan Hill Roads. 518 Comment
  SEINET10471411  Thelypteris nevadensis Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4222 Butte T21N R6E sec 10? Ca. 2 mi s of Milsap Bar, ca. 23 mi ne of Oroville. Yellow Pine Forest; 750 m. 750 Comment
  HSC23288  Thysanocarpus curvipes D. C. Polen 1971-4-8 27 Butte 10 mi. N of road, 0.6 mi. E on Skyway from its junction with Hwy. 99E Chico 70 Comment
  CHSC29009  Thysanocarpus radians M. S. Taylor 1980-4-4 2452 Butte On s side of Melody Lane, ca. 1 mi e of its jct with Honcut-Palermo Rd, ca. 5 mi s of Palermo. 38 Comment
  CHSC35746  Thysanocarpus radians R. E. Preston 1982-4-29 268 Butte N jct of Cherokee Rd and Oregon Gulch Rd, ca. 6.5 mi n of Oroville. 419 Comment
  CHSC4139  Thysanocarpus radians R. Carter 1966-4-9 328 Butte Found ca. 6 mi. E of Oroville; 500 yds. NE of small reservoir at intersection of Olive Hwy. and Miners Ranch Rd. 243 Comment
  CDA33382  Tilia americana L. Ahart, W. Dempsey, J Guardino, S. Mason, S. Green 2010-5-28 16747 Butte Chico. About 100 yards west of the Cedar Grove Parking Area in Lower Bidwell Park. Comment
  CHSC96241  Tonella tenella R. Fischer 2006-4-4 984 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east -side addition along Hwy. 32. Plants growing on a cut bank along 10 Mile House Road where a seasonal stream crosses the road, bottom of road near Big Chico Creek. 228 Comment
  UCD128153  Torilis arvensis Joseph M. DiTomaso 1976-5-23 470 Butte Lake Oroville, peninsula at east end of lake. 274 Comment
  CHSC103002  Torilis arvensis subsp. arvensis Lowell Ahart 2009-6-3 15830 Butte Along a small stream, meadow, about 55 yards southeast of the gate, about 45 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 269 Comment
  CHSC30723  Torilis arvensis subsp. purpurea M. S. Taylor 1980-5-27 2721 Butte N side of Oroville-Quincy Hwy, ca. 2 mi s of Lake Madrone. 609 Comment
  CHSC60951  Torilis arvensis subsp. purpurea Lowell Ahart 1993-6-16 6969 Butte On the west side of a small meadow, south-west of the intersection of Black Bart Road and Forbestown Road, about 3 1/2 (air) miles south-west of Forbestown. 609 Comment
  JEPS127070  Torilis nodosa Lowell Ahart 2016-5-30 20895 Butte Peter Ahart Ranch, about 2 1/2 miles north and 1/4 mile east of Honcut, about 12 miles (air) south of Oroville. Comment
  UC73341  Torilis nodosa Miss M. Alice King 1905-1 Butte Sacramento Valley, near College City Comment
  CDA36309  Torreya californica J. R. Keck Jr. 1978-5-23 s.n. Butte Highway 70, Jarboe Gap. Near Poe Power House. 0 Comment
  RSA0059698  Torreya californica C. B. Wolf 1937-5-17 8718 Butte Northern Sierra Nevada, new Deer Creek, Chico. Lake Almanor Road, 7 miles below Lomo 1067 Comment
  SFV2133  Toxicodendron diversilobum M. L. Vincent 1960-9-8 90 Butte Sierra Nevada Paradise. In lot across street from 5330 Harrison Road. 525 Comment
  CHSC23639  Toxicoscordion fremontii M. S. Taylor 1976-3-23 1036 Butte Ca. 1/4 mi n of Pine Creek on Pine Creek-Cana Rd, ca. 11 mi n of Chico. 60 Comment
  CHSC38885  Toxicoscordion venenosum var. venenosum Vernon Oswald 1983-4-17 327 Butte Upper Bidwell Park, Chico, beside Yahi Trail w of Brown's Hole. 182 Comment
  CHSC43029  Trautvetteria caroliniensis var. occidentalis L. P. Janeway 1987-6-20 2265 Butte Along Fall River ca 2 mi straight line from Camp Eighteen. 1173 Comment
  UCR219108  Tribulus terrestris George K. Helmkamp, E. A. Helmkamp 2009-9-5 15594 Butte Sacramento Valley, Palermo Road 0.3 mi. east of its junction with CA-70, 6.1 mi. ENE (76 deg. ) of Biggs 58 Comment