Search Results — 2000 specimen records retrieved (1580 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CHSC26687  Abies magnifica M. S. Taylor; M. Hayes, R. Schlising 1977-8-17 1487 Butte Humboldt Summit, at Butte-Tehama county line, on Butte side. 2133 Comment
  CHSC3266  Acer buergerianum M. L. Hillier 1966-2-4 Butte Bidwell Park Nature Trail near Cedar Grove. Comment
  CAS-BOT-BC330627  Acer glabrum var. glabrum H. F. Copeland 1929-6-11 s.n. Butte Jonesville, near Butte Creek Comment
  UCD117057  Acer macrophyllum Johann Watjen 1969-5-4 36 Butte confluence of Rock Creek and Feather River North Fork, Feather River Canyon. 457 Comment
  CDA43099  Acer saccharinum L. P. Janeway 2013-2-25 11084 Butte Sacramento Valley.; North slope of levee on south side of Feather River, Oroville; opposite (north of) the north end of 2nd Ave and Rotary Park. Comment
  CAS-BOT-BC21746  Achillea millefolium Lowell Ahart 1987-6-9 5737 Butte On the west side of the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  JEPS117291  Achillea millefolium Lowell Ahart 2010-9-21 17216 Butte About 70 yards east of the poor dirt road, about 80 yards west of Big Kimshew Creek, about 1 1/2 miles (air)northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir 1917 Comment
  CHSC49582  Achnatherum lemmonii Vernon Oswald 1985-6-3 1800 Butte Spur road on the e side of Hwy 32 0.1 mi s of Platte Mtn. Lookout. 1066 Comment
  RSA712918  Achnatherum lemmonii var. lemmonii L. P. Janeway 2006-5-28 8638 Butte Northen High Sierra Nevada, West side of Concow Road about 3.2 mi NE of upper end of Concow Reservoir Comment
  CAS-BOT-BC29947  Achyrachaena mollis H. E. Brown 1897-4-15 s.n. Butte near Clear Creek Comment
  CHSC38502  Acmispon americanus var. americanus Vernon Oswald 1983-6-9 663 Butte Upper Bidwell Park, Chico, beside Upper Park Rd. near Devil's Kitchen (2.1 mi e of the power lines). 213 Comment
  CHSC94785  Acmispon americanus var. americanus Lowell Ahart 2006-10-8 13441 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
  UCD103797  Acmispon americanus var. americanus A. A. Heller 1914-8-11 11675 Butte Chico-Hamilton road, 6 miles from Chico. Comment
  UCD103796  Acmispon americanus var. americanus A. A. Heller 1914-7-24 11625 Butte Forest Ranch. 731 Comment
  CHSC90517  Acmispon brachycarpus J. S. Peterich 1988-3-22 12 Butte Vic. Bear Hole in Bidwell Park ca. 2 mi. e. of golf course. 120 Comment
  CHSC98962  Acmispon brachycarpus Lowell Ahart 2008-5-12 14755 Butte Below the high water line of Lake Oroville, on the east side of Sucker Creek, about 100 yards north of where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile west of the Ponderosa Dam. 258 Comment
  UCSB63729  Acmispon brachycarpus Neuman, Lance 1987-4-12 Butte ca. 400 yd N of Horseshoe Lake Comment
  UCD103753  Acmispon denticulatus A. A. Heller 1914-5-1 11342 Butte Chico-Hamilton road 6 miles from Chico. Comment
  CHSC38500  Acmispon parviflorus Vernon Oswald 1983-4-9 300 Butte Upper Bidwell Park, Chico, beside the North Rim Trail ca. 1.4 mi e of the power lines. 353 Comment
  CHSC98960  Acmispon parviflorus Lowell Ahart 2008-5-12 14733 Butte Below the high water line of Lake Oroville, on the east side of Sucker Creek, about 40 yards north of where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile west of the Ponderosa Dam. 258 Comment
  CHSC45234  Aconitum columbianum var. columbianum Kirsten Tarp 1981-7-28 52 Butte Coon Hollow, ca. 29 air miles ne of Chico. 1731 Comment
  CAS-BOT-BC418782  Aconogonon phytolaccifolium A. A. Heller 1914-8-8 11672 Butte At Jonesville 1524 Comment
  CHSC39124  Aconogonon phytolaccifolium R. A. Schlising 1983-7-24 4341 Butte E of Stirling City, at creek in Breakneck Canyon. 1417 Comment
  CAS-BOT-BC418802  Aconogonon phytolaccifolium A. A. Heller 1938-7-20 15278 Butte At Chaparral 1524 Comment
  CHSC46836  Actaea rubra Kirsten Tarp 1983-8-6 332 Butte N part of county, ca. 0.9 mi w of Cherry Hill; at edge of meadow. 1417 Comment
  SEINET10473549  Adenocaulon bicolor Mary Susan Taylor 1977-8-17 Taylor 1466 Butte In Montane Meadows around Julie<s Creek between Old Humboldt Road and Butte Creek, ca. 3.4 mi E of where Butte Creek crosses Humboldt Road near Butte Meadows. 1341 Comment
  CHSC44611  Adiantum aleuticum Vernon Oswald 1985-7-15 1900 Butte Near Cresta Tunnel below the falls on Bear Ranch Creek via the dirt road opposite Cresta Rest Area on Hwy 70. 463 Comment
  CHSC50538  Adiantum aleuticum Vernon Oswald; Lowell Ahart 1990-6-20 4308 Butte South side of Philbrook Creek, ca. 0.5 mi west of the Butte-Plumas county line, between Philbrook Reservoir and Carr Mine. 1981 Comment
  CAS-BOT-BC65557  Adiantum capillus-veneris M. S. Taylor 1979-10-3 2217 Butte s side of Butte Creek, ca. 1/4 mi upstream from bridge crossing Butte Creek at Helltown Rd., 243 Comment
  CHSC87804  Adiantum jordanii Paul Maslin 2004-4-21 21 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). Comment
  JEPS116129  Adiantum jordanii Lowell Ahart 2009-5-23 15742 Butte On the east side of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highwat 32, about 10 miles northeast of Chico 234 Comment
  JEPS98705  Aegilops triuncialis Lowell Ahart 2000-5-16 8357 Butte 5 air miles SW of Oroville (Thermalito Afterbay, N side of access road to boat ramp, W of Larkin Road, 1 1/4 mi S of Oroville Airport) 42 Comment
  SEINET12290260  Agastache parvifolia Unknown 1967-1 584 Butte Chico, on the Rd to Eagle Lake Biology Station and Willow Creek 1585 Comment
  CAS-BOT-BC29495  Agoseris Clare B. Hardham 1978-4-17 21564 Butte Humbery Road north of Paradise Comment
  CAS-BOT-BC447795  Agrimonia gryposepala Clarence Quick 1940-7-20 40 -96 Butte Big Bar Mt., E. of Feather River at Pulga; from Big Bar Lookout. 2-3 miles towards Brush Creek Comment
  CAS-BOT-BC447796  Agrimonia gryposepala John Thomas Howell 1962-6-15 37526 Butte Serpentine area, Magalia 731 Comment
  CAS-BOT-BC447800  Agrimonia gryposepala Strothman 1913-7-1 233 Butte Tilden, Plumas Forest 792 Comment
  CHSC116597  Agrostis capillaris L. P. Janeway 2015-6-30 11791 Butte Northern High Sierra Nevada. Plumas National Forest; along road 19N19 1.3 road-km east of Ponderosa Way; north-northwest slopes halfway between Sunset Hill and Ponderosa Dam (South Fork Feather River). 701 Comment
  CHSC94554  Agrostis exarata Lowell Ahart 2006-9-11 13301 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
  CHSC96953  Agrostis exarata Lowell Ahart 2007-7-8 14269 Butte On the east side of North Honcut Creek, Peter Ahart Ranch, about 3/4 miles north and 2 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville. 45 Comment
  SEINET3450813  Agrostis exarata Unknown 2003-6-30 10333 Butte Forbestown, Forbestown, about 3 air miles north, in the gutter on the north side of Fields Ridge Road, north of the Ponderosa Reservoir 490 Comment
  CHSC50849  Agrostis exarata var. monolepis Vernon Oswald 1990-7-28 4404 Butte Butte Creek Trail, ca. 2.2 mi (air) east of Forest Ranch. 597 Comment
  UCD52484  Agrostis exarata var. monolepis John Thomas Howell 1973-7-9 49692 Butte NE of Pulga Bridge, Feather River highway. Comment
  SEINET10507086  Agrostis exigua Lowell Ahart, L. Hanson 1985-5-20 Ahart 5028 Butte About 1/2 mile east of Little Bald Rock, N of Oroville. Comment
  CAS-BOT-BC139720  Agrostis gigantea Lowell Ahart 1985-11-7 5235 Butte Below the high water line of Lake Oroville, on the bottom of the South Fork of the Feather River, about 300 yards northwest of the Ponderosa Dam. 277 Comment
  CAS-BOT-BC139437  Agrostis hyemalis A. A. Heller 1914-7-23 11613 Butte In Chico Meadows. 1219 Comment
  RSA591515  Agrostis idahoensis H. F. Copeland 1930-7-25 1340 Butte Jonesville. 1524 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
  CHSC41923  Agrostis thurberiana Lowell Ahart 1983-8-16 4290 Butte Near a small stream that flows into Butte Creek, about 1 mile east of Butte Meadows. 1450 Comment
  CHSC105681  Agrostis variabilis Lowell Ahart 2010-9-21 17220 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
  CHSC31933  Agrostis variabilis J. D. Jokerst; L. Ahart, M. S. Taylor 1980-8-2 1032 Butte Humboldt Peak, large, open, bowl-shaped, volcanic mudflow ca. 1/4 mi. below and E of summit, northern most portion of Butte Co. 1828 Comment
  CHSC118445  Aira caryophyllea L. P. Janeway 2016-5-9 11952 Butte Northern High Sierra Nevada. Plumas National Forest; upper north-facing slope above the South Fork Feather River arm of Lake Oroville, 0.4 km northwest of the junction of Pondosa Way and Road 19N19. 701 Comment
  SEINET225644  Allium amplectens Unknown 1980-5-6 3269 Butte Peter Ahart Ranch ca 2 1/2 mi NNE of Honcut between Oroville and Marysville, Valley Grassland, 30 Comment
  CAS-BOT-BC460727  Allium amplectens J. D. Jokerst 1980-5-15 706 Butte Southeast of Cohasset Hwy; On top of Cohasset Ridge. 487 Comment
  RSA367057  Allium amplectens M. Vincent 1960-4-15 176 Butte Pentz Road, 12 miles south of Paradise. Comment
  SEINET12039538  Allium amplectens E. D. Osman 1978-1 27 Butte 20 mi NNE of Chico and 200 yds N of Cohasset Hwy 975 Comment
  SEINET3883765  Allium amplectens D. W. McNeal 1974-4-24 1426 Butte Along Hwy. #70, 4.4 mi. s. of the Oroville Dam Exit (Hwy. #126).; 0 Comment
  CHSC36902  Allium campanulatum R. A. Schlising 1980-6-10 3665 Butte NW part of county, along Humboldt Road, 1.9 mi NE of jct with Hwy 32 at Lomo. Carpenter Ridge. 1341 Comment
  UC725433  Allium campanulatum A. A. Heller 1938-5-28 15113 Butte 22 mi from Oroville (along the Feather River Highway e side of Jarboe Pass); Feather River Highway, Jarboe Pass 609 Comment
  CAS-BOT-BC465438  Allium campanulatum E. B. Copeland 1929-7-3 350 Butte Jonesville 1550 Comment
  CHSC2065  Allium cratericola V. Holt 1941-3-1 Butte Table Mountain near Oroville. 457 Comment
  UC725435  Allium cratericola A. A. Heller 1938-4-3 15012 Butte summit of Table Mountain Table Mountain 304 Comment
  UCD138463  Allium cratericola M. Vincent 1961-3-27 2 Butte Table Mountain four miles south of Cherokee California. 914 Comment
  RSA0118750  Allium hyalinum L. P. Janeway 2015-3-23 11643 Butte Sacramento Valley. North side of Thermalito Forebay, on the west side of Nelson Ave. 72 Comment
  CDA13239  Allium membranaceum G. F. Hrusa, T. D. Wilfred 1996-7-8 13086 Butte Plumas National Forest; Along Old Railroad Grade Rd., Paradise Lake Dam, approx. 3 m. N of Magalia. Comment
  CHSC37129  Allium membranaceum R. A. Schlising 1980-6-17 3742 Butte Paradise Lake, n of Magalia; ne corner of lake. 731 Comment
  CAS-BOT-BC472965  Allium membranaceum Clarence R. Quick 1952-7-1 52 -119 Butte Mill Creek Road between Feather River Highway and Coyote Cap; Sierra Nevada 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
  SEINET10872298  Allium membranaceum Lowell Ahart, Peter Ahart 1984-6-10 Ahart 4698 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown; Yellow Pine Forest; 700 m. 700 Comment
  CAS-BOT-BC132114  Allium sanbornii var. sanbornii Mrs. C. C. Bruce 1897-5-1 1900 Butte Little [Chico-creek] Chico Creek Comment
  CHSC39056  Allium sanbornii var. sanbornii R. A. Schlising 1983-8-6 4432 Butte NE of Oroville and S of Brush Creek; E of Little Bald Rock. 1030 Comment
  CAS-BOT-BC475439  Allium serra S. P. Rixford 1918-5-1 s.n. Butte Chico Comment
  SBBG29977  Allium validum E. B. Copeland 1930-7-21 Butte Jonesville 1500 Comment
  CAS-BOT-BC476713  Allium validum H. F. Copeland 1930-8-12 130 Butte Jonesville meadows 1219 Comment
  UC600663  Allophyllum integrifolium E. B. Copeland 1931-6-29 Butte along Butte Creek Jonesville; , Butte Creek 1500 Comment
  UC176143  Alnus rhombifolia A. A. Heller 1913-4-6 10719 Butte e Chico (bottoms along creek); Big Chico Creek Comment
  UCD14592  Alopecurus carolinianus Carl M. Wick 1986-4-2 s.n. Butte California, Butte Co.; 1/2 mile east of Richvale, Richvale East/Erickson Road; Comment
  UCD55881  Alopecurus carolinianus L. Ahart 1978-4-21 1660 Butte Peter Ahart Ranch, Honcut. 50 Comment
  SEINET10790510  Alopecurus carolinianus Lowell Ahart 1990-4-15 Ahart 6450 Butte Below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/8 mile north-west of the Enterprise Bridge across Lake Oroville. T19N R6E nw/S6. Foothill woodland (destroyed). Carolina Foxtail. 290 Comment
  CAS-BOT-BC137938  Alopecurus saccatus A. A. Heller 1902-5-3 5445 Butte Near Nelson. Comment
  SEINET10511200  Alopecurus saccatus Lowell Ahart 1982-5-10 Ahart 3429 Butte Ca. 2 mi ne of Honcut. Valley Grassland. 50 Comment
  SEINET10478740  Amaranthus albus Mary Susan Taylor 1978-9-8 Taylor 1888 Butte Along flood control slough, ca. 4 mi N of Chico, along Hwy 99. 61 Comment
  CHSC112628  Amaranthus palmeri Lowell Ahart 2013-10-16 19111 Butte On the west side of Highway 99E, about 20 yards south of B Street, about one mile east of Biggs. 30 Comment
  CHSC47965  Amaranthus rudis Vernon Oswald 1987-8-13 3218 Butte 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. Portion of Rancho Bosquejo. 48 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-BC142951  Amelanchier utahensis A. A. Heller 1915-6-11 11963 Butte Chico Meadows in the Sierra Nevada 1219 Comment
  CDA36700  Ammannia coccinea P. B. Kennedy 1916-4-4 Butte Biggs. 0 Comment
  CHSC80576  Ammi majus Lowell Ahart 2001-6-13 8814 Butte Sides of the dirt road south and 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
  CHSC90931  Amsinckia intermedia Lowell Ahart 2005-4-14 11700 Butte On the west bank of a deep ditch, east of the railroad tracks, north of Spruce Street, Gridley. 28 Comment
  JEPS107370  Amsinckia intermedia Lowell Ahart 2005-4-14 11700 Butte On the west bank of a deep ditch, east of the railroad tracks, north of Spruce Street, Gridley 28 Comment
  RSA590209  Amsinckia menziesii Michael A. Vincent, Robert Rhode, Jim Snowden 1996-3-29 7243 Butte N Table Mt. W of Cherokee Rd, N of Oroville. Uphill from entrance on Cherokee Rd. Comment
  RSA0090974  Amsinckia verna A. A. Heller 1939-3-23 15354 Butte Along the highway near Wick s Corner. Comment
  CHSC20115  Anagallis arvensis M. S. Taylor 1975-4-26 517 Butte Scattered on creek bank, in meadow ca. 50 m e of Kunkle Reservoir, ca. 50 m e of Pentz-Magalia Hwy, ca. 1 mi s of Paradise. 609 Comment
  CHSC3249  Anagallis arvensis Virginia Hagaman 1966-3-21 81 Butte 2 miles from Cherokee on Clark Road at edge of road. Comment
  CHSC82403  Anagallis arvensis Lowell Ahart 2002-5-7 9632 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
  UCSB34746  Andropogon virginicus P. Reisentz 1979-5-13 Butte collected 3.0 mi S and 1.0 mi N along Highway 170 Butte-Plumas County line, and Cresta Point Houses - Butte-Plumas County line, Cresta Point Houses, and Highway 1 Comment
  CHSC50558  Anemone drummondii Vernon Oswald; Lowell Ahart 1990-6-20 4307 Butte South side of Philbrook Creek, ca. 0.5 mi west of the Butte-Plumas county line, between Philbrook Reservoir and Carr Mine. 1993 Comment
  CHSC46837  Anemone oregana Kirsten Tarp 1982-6-27 192 Butte S of Sly Creek Reservoir. 1097 Comment
  CHSC42563  Angelica breweri Vernon Oswald 1983-8-17 991 Butte Trail between Humboldt Summit and Humboldt Peak, n-e of Jonesville. 2023 Comment
  CHSC79636  Angelica breweri G. F. Hrusa; T. D. Wilfred 1996-7-9 13184 Butte On 22N89 approx. 0.3 m. from intersection of Hwy 162. Plumas National Forest. [Lat./Long. on label is '39 45 N; 121 18 W']. 1200 Comment
  UCD116183  Anoda cristata Ball 1939-12-1 s.n. Butte Banger garden. Comment
  CAS-BOT-BC77281  Antennaria microphylla Lowell Ahart 1985-6-17 5048 Butte 4 miles south-east of Feather Falls, along the dirt road on Fields Ridge 792 Comment
  CHSC78357  Anthoxanthum odoratum Lowell Ahart 2000-6-29 8539 Butte On the northwest side of Concow Road at Flea meadow, about 1/2 mile west of Flea Mountain, about 3 1/2 miles (air) north of Concow Reservoir, about 5 miles (air) east of Magalia. 1036 Comment
  JEPS98278  Anthoxanthum odoratum Lowell Ahart 2000-6-29 8539 Butte On the northwest side of Concow Road at Flea meadow, about .5 mile west of Flea Mountain, about 3.5 miles (air) north of Concow Reservoir, about 5 miles (air) east of Magalia. 1036 Comment
  SEINET10454731  Anthriscus caucalis Lowell Ahart 1983-4-10 Ahart 3928 Butte S of a large wash, 1/10 mi e of the large barn, ca. 1.4 mi ne of Hwy 99 and Pentz Rd jct, ca. 16 mi s of Chico. Valley Grassland; 65 m. 65 Comment
  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
  CHSC43141  Antirrhinum leptaleum R. Banchero; R. Schlising 1980-9-6 331 Butte 0.7 mi ne of the jct of Lumpkin and Forbestown Rd. 493 Comment
  CHSC28779  Antirrhinum vexillo-calyculatum subsp. intermedium J. D. Jokerst 1979-9-2 335 Butte Humbug Road, 2.0 mi. N. of Centerville Cemetary. 457 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
  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
  CAS-BOT-BC392105  Aquilegia formosa John Thomas Howell 1951-8-19 28156 Butte 2 miles west of Pulga 365 Comment
  CAS-BOT-BC392106  Aquilegia formosa Lowell Ahart 1984-6-10 4703 Butte Along the road about 2 miles south-west of the Forbestown Diversion Dam, north-east of Forbestown 700 Comment
  SEINET10536205  Aquilegia formosa var. truncata Mary Susan Taylor 1978-7-18 Taylor 1718 Butte On top of Humboldt Peak, at Humboldt Summit, on Butte-Tehama County line. 2159 Comment
  UC600706  Arabis glabra E. B. Copeland 1931-6-22 Butte Jonesville 1500 Comment
  RSA0126413  Arabis glabra H. F. Copeland 1931-6-10 1519 Butte Jonesville; Colby Canyon. Comment
  CHSC110  Aralia californica M. Underhill 1952-7-7 Butte 609 Comment
  CHSC102997  Arbutus menziesii Lowell Ahart 2009-8-23 16297 Butte On the west 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
  CHSC48374  Arbutus menziesii Vernon Oswald 1987-3-29 2299 Butte Centerville Flume near the first tunnel N of Humbug Rd. 341 Comment
  CHSC93516  Arbutus menziesii L. P. Janeway; B. Castro, Ana Castro Instone 2006-4-23 8559 Butte Northern Sierra Nevada Foothills. North Table Mountain; near head of Campbell Creek and Beatson Hollow, about 150 m south of Phantom Falls. On steep west-facing slope between the top tablelands and the bottom of the Hollow. 375 Comment
  POM354297  Arceuthobium campylopodum E. B. Copeland 1928-8-18 759 Butte Neighborhood of Jonesville. Comment
  UCSC000190  Arceuthobium campylopodum H. F. Copeland 1928-8-29 s.n. Butte the summit of Humboldt Road - neighborhood of Jonesville 2134 Comment
  RSA633001  Arctostaphylos manzanita Jon E. Keeley 1996-6-20 27460 Butte Approximately 1/2 km west of Cohasset. 570 Comment
  RSA633006  Arctostaphylos manzanita Jon E. Keeley 1996-6-20 27479 Butte Ponderosa Way, south of Cohasset. 750 Comment
  RSA633007  Arctostaphylos manzanita Jon E. Keeley 1996-6-20 27456 Butte Approximately 1/2 km west of Cohasset. 570 Comment
  UCD52240  Arctostaphylos manzanita John Thomas Howell 1976-4-2 51562 Butte In Upper Sonoran Life Zone on volcanic rock; about 2 miles from Paradise on 'Skyway' to Chico. 396 Comment
  SEINET11989223  Arctostaphylos manzanita J. T. Howell 1975-1 51105 Butte about 2 mi from Paradise on Skyway to Chico 396 Comment
  CAS-BOT-BC24410  Arctostaphylos manzanita subsp. manzanita John Thomas Howell 1976-4-2 51568 Butte About 2 mi. from Paradise on Skyway to Chico. 396 Comment
  JEPS119835  Arctostaphylos manzanita subsp. manzanita Lowell Ahart 2012-3-23 17774 Butte About 100 yards south of the intersection of Guardian Trail and Ten Mile House Road, about 1/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  CAS-BOT-BC24297  Arctostaphylos mewukka A. A. Heller 1928-2-27 14478 Butte About 2 mi. w. of Forest Ranch. Comment
  UC1303074  Arctostaphylos mewukka A. A. Heller 1928-2-27 14477 Butte near Forest Ranch Comment
  CAS-BOT-BC38565  Arctostaphylos mewukka subsp. truei John Thomas Howell 1976-4-2 51569 Butte Paradise. 609 Comment
  CAS-BOT-BC38605  Arctostaphylos mewukka subsp. truei Wayne Roderick 1981-7-19 s.n. Butte 3 miles n.e. of Magalia Comment
  CHSC34803  Arctostaphylos mewukka subsp. truei M. S. Taylor 1981-5-21 3780 Butte E side of rd 23N02, ca. 2 mi E of Rag Dump, ca. 6 air mi NE of Magalia. 1188 Comment
  UC426930  Arctostaphylos nevadensis E. B. Copeland 1930-7-6 437 Butte above Jonesville (on high ridges) 2050 Comment
  CHSC21281  Arctostaphylos patula M. S. Taylor 1974-3-3 71 Butte 13 mi E of Chico, on N side of the Skyway. 548 Comment
  SEINET11989215  Arctostaphylos truei J. T. Howell 1975-1 51083 Butte about 2 mi from Paradise on Skyway to Chico 396 Comment
  CAS-BOT-BC48298  Arctostaphylos viscida subsp. viscida A. A. Heller 1914-5-18 11403 Butte Between Chico and Forest Ranch, 14 miles from Chico 731 Comment
  UC1174972  Arctostaphylos viscida subsp. viscida P. C. Everett and E. K. Balls 1959-10-20 23908 Butte Hwy 32 9.4 mi ne Chico (toward De Sabla) 792 Comment
  CHSC84407  Aristida dichotoma Lowell Ahart 2003-7-30 10461 Butte On the north side of Bean Creek Road, about 1/2 mile southeast of Little Bald Rock, about 2 1/2 miles (air) southeast of Brush Creek. 1000 Comment
  JEPS104594  Aristida dichotoma Lowell Ahart 2003-7-30 10461 Butte On the n side of Bean Creek Rd, ca 1/2 mi se of Little Bald Rock, ca 2 1/2 mi (air) se of Brush Creek. 1000 Comment
  CAS-BOT-BC137558  Aristida oligantha John Thomas Howell 1974-9-19 50885 Butte Sierra Nevada. 1.5 miles south of Yankee Hill, Feather River Highway at Lunt Road. Comment
  CHSC115422  Aristolochia californica Kate Ronan 2013-5-19 Butte Upper Bidwell Park, Wildwood Trail. 89 Comment
  CHSC27842  Aristolochia californica T. B. Devine 1978-10-15 469 Butte At intersection of Humbug Rd. and Honey Run Rd. 106 Comment
  HSC86842  Aristolochia californica Craig Thomas 1977-4-12 14 Butte 300 m E-SE of Chico Municipal Golf Course HQ, 50 m S of Chico Creek, 6 km E of Chico 90 Comment
  UC176145  Aristolochia californica A. A. Heller 1913-3-9 10687 Butte hills 2 mi. n. of Oroville Comment
  UC650550  Aristolochia californica Mrs. C. C. Bruce March 1897 1794 Butte Little Chico Comment
  UC91142  Arnica chamissonis Mrs. R. M. Austin 1896-7-1 553 Butte Colby Comment
  JEPS21728  Arnica dealbata A. A. Heller 1917-7-29 12861 Butte summit above Jonesville 2133 Comment
  RSA32828  Asarum hartwegii A. A. Heller 1939-4-10 s.n. Butte Shaded places in leafy mold on a slope in the oak belt of the transition zone near its lower limits Comment
  SEINET10475949  Asarum hartwegii Mary Susan Taylor 1980-3-8 Taylor 2372 Butte Pulga community, ca. 1 mi NE of Hwy 70, ca. 28 mi NE of Oroville; serpentine soils. 488 Comment
  POM161642  Asclepias cordifolia E. B. Copeland 1909-7-13 s.n. Butte Jonesville. 1600 Comment
  CHSC80750  Asclepias eriocarpa Lowell Ahart 1998-7-18 8043 Butte West of Cherokee Road, about 50 feet southwest of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  POM75970  Asclepias eriocarpa C. C. Bruce 1897-05 s.n. Butte Sacramento River Comment
  SEINET10969214  Asclepias fascicularis Mary Susan Taylor 1975-6-25 Taylor 791 Butte Richardson Springs on Mud Creek, ca. 3 mi NE of Cohasset Hwy, ca. 6 mi N of Chico, ca. 1 mi NE of the Hotel at the Springs. With Gary Jones. 244 Comment
  CHSC23404  Aspidotis californica M. S. Taylor 1976-3-6 1008 Butte Above Macabes Creek, ca. 50 ft e of Lumpkin Rd, ca. 1 mi ne of Forbestown Rd, ca. 12 mi e of Oroville. 1066 Comment
  UC474208  Aspidotis densa H. F. Copeland 1928-4-3 200 Butte near Magalia 609 Comment
  CAS-BOT-BC65918  Aspidotis densa Lowell Ahart 1984-7-19 4736 Butte about 1 1/2 miles south-east of Bald Mountain, 3/4 mile from Oak Point, about 4 miles north-east of Stirling City 1500 Comment
  SEINET10475334  Aster breweri Mary Susan Taylor, Lowell Ahart 1981-8-16 Taylor 4212 Butte T25N R5E ne 1/4 sw 1/4 sec 29. Pulga NW quad. N. side of rd 25N04, ca. 0.5 mi E of its jct with 52S13 ca. 1 mi NE of Jones Mdw. ca. 6 mi NE of Stirling City. 6200 ft. 1890 Comment
  SEINET10474124  Aster foliaceus var. parryi Mary Susan Taylor 1975-8-31 Taylor 884 Butte Riparian Woodland, on Ernies Island in Butte Creek, ca. 50 ft S of Humboldt Rd, ca. 0.5 mi E of Butte Meadows. 1341 Comment
  SEINET10474437  Aster oregonensis subsp. californicus Mary Susan Taylor 1982-8-16 Taylor 4984 Butte T23N R3E sw/sw sec 30. Paradise E quad. In Mixed Evergreen Forest; on edge of serpentine outcrop, just s of old RR Xing over Coutelenc Rd, at the Skyway, Magalia. 2400 ft. Comment
  CAS-BOT-BC178469  Astragalus gambelianus John Thomas Howell 1962-6-16 37553 Butte Magalia, Sierra Nevada 731 Comment
  CHSC111343  Astragalus gambelianus Lowell Ahart 2012-5-2 17957 Butte 10 yards south of the fence, about 80 yards northeast of the oak tree, Upper Bidwell Park, about 1 mile east of Chico. 115 Comment
  CDA26672  Astragalus gambelianus Sterling O. Mattoon 1971-4-27 Butte State Highway 32, 6.9 miles east of Chico. 0 Comment
  CHSC43661  Astragalus pauperculus Vernon Oswald 1985-3-30 1688 Butte Upper Bidwell Park, Chico, near the 3rd tower n of Upper Park Rd. of the transmission line crossing the park w of Horseshoe Lake. 91 Comment
  CHSC59315  Astragalus pauperculus J. L. Guardino 1992-3-23 1 Butte Paradise, 1/4 mi s of Circle Dr. terminus. 472 Comment
  UC765009  Astragalus pauperculus R. F. Hoover 1938-4-24 3236 Butte 3 mi n Chico; n of Chico Comment
  UCD105185  Astragalus pauperculus A. A. Heller 1914-4-13 11286 Butte Chico-Oroville road 11 miles from Chico. 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-BC69540  Athyrium alpestre subsp. americanum V. Oswald; L. Ahart 1988-7-29 3651 Butte Ca. 5 mi. (air) se. of Jonesville on the ridge running eastwards from the peak of Snow Mtn. 2097 Comment
  POM196122  Athyrium filix-femina subsp. cyclosorum E. B. Copeland 1929-7-29 326 Butte Jonesville. 1600 Comment
  CHSC25288  Athyrium filix-femina var. cyclosorum M. S. Taylor 1977-7-15 1422 Butte On w branch of the Feather River, ca. 1 mi e of the Skyway, ca. 1 mi n of Magalia. 677 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
  CHSC27732  Atriplex argentea var. mohavensis Robert A. Schlising 1978-10-27 3346 Butte Chico; disturbed field of California State University campus, near S. P. T. Co. RR and West Sacramento Avenue. Comment
  CHSC4394  Avena barbata R. L. Smith 1966-5-15 Butte Paradise, 5 mi sw of Post Office. Comment
  CHSC77824  Avena fatua Anna Pinsky 1997-4-30 40 Butte Chico, Upper Bidwell Park, Bear Hole, 100-200 ft. above Big Chico Creek. Comment
  CHSC8167  Avena sativa M. Banning 1969-3-22 19 Butte South edge of Chico Golf Course, Bidwell Park. 73 Comment
  CHSC43270  Baccharis douglasii Lowell Ahart 1987-8-30 5871 Butte Near Highway 70, about 1/4 mile south of Clark Road (191), about 1/2 mile northeast of Oroville Chico Highway (149). 91 Comment
  CAS-BOT-BC98008  Baccharis pilularis Lowell Ahart 1981-11-6 3225 Butte Gray Lodge, south-west of Gridley 35 Comment
  CHSC89489  Baccharis pilularis R. D. Fischer 2004-8-22 441 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located at bottom of 10 Mile House Road near gated end of park property. At edge of large mdw. 217 Comment
  UC1259003  Bacopa repens J. L. Strother 1976-8-18 1255 Butte Biggs Rice Experiment Station Comment
  RSA276695  Bacopa repens J. M. Tucker 1953-8-28 2684 Butte Biggs Rice Experiment Station Comment
  SEINET10973580  Barbarea orthoceras Mary Susan Taylor 1978-6-24 Taylor 1654 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
  JEPS118614  Bellis perennis L. P. Janeway 2011-6-2 10362 Butte Sacramento Valley. City of Chico; in the lawn between Bidwell Mansion, Modoc Hall (Calif. State Univ., Chico) and Sol-Wil-Le-No Ave. Chico 7.5; quad. Comment
  CDA36621  Bergia texana L. Ahart 2006-8-5 13083 Butte On the bottom of a large wash, Peter Ahart Ranch, about 1 1/2 miles north and 300 yards east of Honcut, about 12 miles south of Oroville. Comment
  CHSC46016  Bergia texana Lowell Ahart 1974-7-31 570 Butte Peter Ahart Ranch, about 1-1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 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
  UC2026871  Betula alba Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18008 Butte On the west side of the horse path, on the north side of the paved park road, southwest of the old walnut orchard, south Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  CHSC43272  Bidens frondosa Lowell Ahart 1987-8-30 5863 Butte On sand and gravel bars along the North Fork of the Feather River, near the Poe Power House, about 2 miles southeast of Jarbo Gap. 271 Comment
  RSA0037017  Bidens frondosa Lowell A. Ahart 2013-11-17 19259 Butte Along the sides of McCabe Creek, below the high water line of Lake Oroville, about 5/8 mile southwest of the Enterprise Bridge across Lake Oroville. 245 Comment
  CHSC64206  Bistorta bistortoides S. C. Morey 1983-8-1 659 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  CHSC93964  Bistorta bistortoides R. D. Fischer 2004-6-20 759 Butte Sierra Nevada Mountains, north-east corner of Butte County and ca. 4 miles north of Butte Meadows off Scout Road. Boy Scout Camp. Plants collected from wet portion of Chico Meadows north of pond. 1371 Comment
  CDA38795  Blennosperma nanum var. nanum L. Ahart 2012-5-4 17988 Butte About 1/4 mile southwest of the lone pine tree on the rim of Beatson Hollow, about 1 1/4 mile northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  HSC32592  Blennosperma nanum var. nanum Linda M. Barker 1974-4-20 159 Butte Table Mtn., Central Valley 305 Comment
  UCD114121  Boechera arcuata Robert E. Preston 1985-4-4 509 Butte Bear Ranch Creek, south of Hwy 70, along trail between hwy and falls. 463 Comment
  CHSC38021  Boechera breweri R. E. Preston 1981-6-13 87 Butte S side of canyon, middle fork of Feather River at Milsap Bar, ca. 20.5 mi NE of Oroville. 609 Comment
  CHSC109135  Boechera breweri subsp. shastaensis Lowell Ahart 2012-2-22 17744 Butte On the north side of a very large basalt outcrop, about 400 yards east of Big Chico Creek, about 100 yards west of South Rim Trail, about 5/8 mile west of Highway 32, about 8 3/4 miles (air) northeast of Chico. 254 Comment
  RSA166310  Boisduvalia stricta D. M. Moore 1960-6-1 91 Butte U.S. 40A, 4.7 mi. S of S Oroville (Dahl s Motel) Comment
  CHSC36842  Bolboschoenus glaucus M. S. Taylor 1982-5-22 4503 Butte Graylodge Waterfowl Refuge, in vicinity of parking lot 6, on Rutherford Rd, ca. 1/2 mi e of its jct with Pennington Rd, ca. 12 mi sw of Gridley. 21 Comment
  UC1751229  Botrychium simplex Timothy B. Devine 1985-7-7 846 b Butte beside Willow Creek about 1/4 mi N of jct with road to Colby Mt. Lookout Jonesville 1524 Comment
  CHSC61333  Boykinia occidentalis Lowell Ahart 1993-7-22 7087 Butte On a steep bank along Fall River, about 200 yards west of the bridge across Fall River, about 6 (air) miles northeast of Feather Falls. 1036 Comment
  HSC102687  Brachypodium distachyon J. P. Smith 2013-5-5 13701 Butte Just west of the junction of Pentz Road with Durham-Pentz Road. 201 Comment
  UCD169897  Brassica napus Lowell Ahart 2009-4-26 15607 Butte On the east side of Highway 99, south of the wash, about 1/2 mile south of the stop light at the intersection, about 1 mile south of Butte Creek, about 3 miles south of Chico. 60 Comment
  CAS-BOT-BC30308  Brassica nigra Lowell Ahart 1982-3-13 3252 Butte About 12 miles southwest of Gridley. Along the edge of the dirt road to the Gray Lodge Headquarters. 35 Comment
  CHSC3567  Brassica rapa R. D. Briggs 1966-2-20 32 Butte Three miles due south of Oroville Dam, on Olive Hwy. Comment
  CAS-BOT-BC106320  Brickellia californica Lowell Ahart 1980-9-10 2631 Butte 1 mile north-east of Milsap Bar - Sierra Nevada 900 Comment
  CAS-BOT-BC145439  Briza maxima Lowell Ahart 1972-5-6 s.n. Butte Peter Ahart Ranch, Honcut. 45 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
  CHSC103986  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
  JEPS117714  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
  JEPS87138  Briza maxima Lowell Ahart 1992-5-9 6767 Butte about 2 air mi n. Oroville (on w side of a small stream, e of Cherokee Road); Lake Oroville Recreation Area 91 Comment
  CAS-BOT-BC145537  Briza minor Lowell Ahart 1980-5-17 2279 Butte 0.5 mile southeast of Hurleton. 600 Comment
  CHSC82265  Briza minor Lowell Ahart 2002-4-24 9537 Butte 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
  CHSC90998  Briza minor Lowell Ahart 2005-4-14 11710 A Butte East of the railroad tracks, north of Spruce Street, Gridley. 28 Comment
  SEINET10967594  Briza minor A. Arthur Heller, H. E. Brown 1902-5-6 Heller 5475 Butte Berry Canyon (near Clear Creek). Comment
  CAS-BOT-BC482207  Brodiaea californica subsp. californica Ethel Wickes 1917-6-1 s.n. Butte Red Bluff Comment
  CHSC38763  Brodiaea californica var. californica Vernon Oswald 1983-6-2 610 Butte Upper Bidwell Park, Chico, along Yahi Trail e of Brown's Hole. 207 Comment
  CHSC49484  Brodiaea coronaria Vernon Oswald 1986-5-12 2003 Butte Goodspeed-Watt Rd. 2.6 mi n of Hwy 162. 30 Comment
  SEINET10965887  Brodiaea coronaria Charles C. Parry Parry s.n. 1887 Butte Chico, Calif. Comment
  CHSC90224  Brodiaea elegans subsp. elegans Robert Kissane 1989-5-12 2 Butte East side of Bruce Road, ca. 500 m s of Humboldt Road, Chico. 80 Comment
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Jun 17 2014
  CAS-BOT-BC482929  Brodiaea elegans subsp. elegans A. A. Heller; H. E. Brown 1902-5-8 5492 Butte Berry Canyon (near Clear Creek) Comment
  CAS-BOT-BC484559  Brodiaea minor John Thomas Howell 1962-6-15 37456 Butte Magalia 731 Comment
  SEINET8194052  Brodiaea purdyi A. A. Heller, H. E. Brown 1902-5-10 s.n. Butte Berry Canyon, near Clear Creek. Comment
  CHSC40272  Brodiaea sierrae Lowell Ahart 1985-6-30 5084 Butte Along the road to the Forbestown Res., about 2 1/2 miles north-east of Forbestown. 868 Comment
  SEINET3441874  Bromus arvensis Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2003-5-27 10222 Butte Chico, Chico, about 100 yards west of the dirt road, west of Diversion Dam on Big Chico Creek, west of Parking area L, Upper Bidwell Park, about 3.5 miles east of Manzanita Avenue 120 Comment
  SBBG119800  Bromus carinatus var. carinatus L. Ahart 2006-7-16 12976 Butte ca. 20 yds E of poor dirt rd and 100 yds S of cabin, ca. 0.75 air mi NW of Jonesville, ca. 5 air mi NE of Butte Meadows 1569 Comment
  UC816144  Bromus carinatus var. carinatus A. A. Heller 1917-7-26 12832 Butte Butte Meadows 1280 Comment
  CHSC27294  Bromus catharticus P. Moyer 1972-4-16 184 Butte CSUC campus. S bank Chico Ck., w of New Dorm Bridge. 60 Comment
  CHSC6676  Bromus catharticus Marilyn Lee 1968-4-16 174 Butte 1046 1/2 W. 4th St., Chico. Comment
  JEPS107777  Bromus catharticus Lowell Ahart 2005-5-2 11767 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
  JEPS88260  Bromus commutatus Vernon H. Oswald and Lowell Ahart 1996-5-27 7660 Butte U.S. Fish and Wildlife Service parcel between Seven Mile Lane and Sacramento River (sw corner of Tract 3.4, Sanctuary II, Sacramento R. National Wildlife Refuge, Llano Seco Unit); Sacramento River National Wildlife Refuge, Llano Seco Unit 32 Comment
  CHSC101659  Bromus diandrus Lowell Ahart 2009-4-26 15611 Butte About 10 miles northeast of Chico, Upper Bidwell Park, on the west side of Highway 32, west of the parking area at the intersection of Highway 32 and Ten Mile House Road. 461 Comment
  CHSC26444  Bromus diandrus P. Moyer 1972-4-9 165 Butte CSUC Campus. North bank of Chico Ck., w of Warner St. Bridge. 60 Comment
  CHSC6668  Bromus diandrus Marilyn Lee 1968-3-15 109 Butte East side of Cohasset Rd., 100 yards N. of entrance to Chico Airport. Comment
  RSA754797  Bromus diandrus L. Ahart 2009-5-8 15667 Butte S side of gravel road, about 10 yards E of Cedar Grove Parking Area in Lower Bidwell Park, Chico 67 Comment
  SEINET10565911  Bromus japonicus Lowell Ahart, John Dittes; Josephine Guardino; Steve Green 2003-5-27 Ahart 10222 Butte T22N R2E, section not surveyed. Normal size plants, on damp dark soil, springy area about 100 yards west of the dirt road, west of Diversion Dam on Big Chico Creek, west of Parking Area L, Upper Bidwell Park, about 3.5 miles east of Manzanita Avenue, Chico. Common, inconspicuous. Foothill Woodland. 122 Comment
  CAS-BOT-BC162464  Bromus laevipes Lowell Ahart 1983-6-15 4056 Butte Sierra Nevada. On high banks of Honcut Creek. Peter Ahart Ranch, ca. 1.5 mile north and 3 miles east of Honcut. 50 Comment
  UCD58918  Bromus laevipes P. B. Kennedy 1914-5-1 4753 Butte Grade to Paradise. Comment
  CAS-BOT-BC162363  Bromus madritensis Lowell Ahart 1987-5-6 5550 Butte Along the road, at the Poe Power House along the North Fork of the Feather River, about 2 miles southeast of Jarbo Gap. 283 Comment
  UCD58983  Bromus madritensis Collector unknown 1951-1 Butte Cherokee. 9.5 miles (in direct line) north of Oroville. 373 Comment
  CHSC31708  Bromus madritensis subsp. madritensis L. Ahart 1970-4-20 45 Butte Peter Ahart Ranch, Honcut. 45 Comment
  SEINET10524513  Bromus marginatus A. Arthur Heller 1917-7-26 Heller 12832 Butte Open places in the yellow pine forest. Butte Meadows, Douglas fir and incense cedar are also plentiful. Comment
  CHSC73881  Bromus orcuttianus B. Castro 1997-6-13 741 Butte Mtn. House Proposed SIA. Ca 2 air mi NE of Brush Creek and 1.1 air mi E of Mtn. House, along the 'C' spur off USFS Rd 22N54, south of Mtn House Creek. 1082 Comment
  CHSC96857  Bromus orcuttianus Lowell Ahart 2007-5-29 13944 Butte On the south side of the Dome Trail head, trail leads to the Middle Fork of the Feather River, about 100 yards northeast of trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Big Bald Rock, about 16 miles (air) northeast of Oroville. 844 Comment
  CAS-BOT-BC161961  Bromus rubens Lowell Ahart 1962-4-20 s.n. Butte Peter Ahart Ranch, Honcut. 150 Comment
  JEPS115954  Bromus sterilis Lowell Ahart 2009-4-26 15614 Butte East edge of a small meadow, about 150 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles norhteast of Chico 286 Comment
  SEINET11688466  Bromus sterilis Unknown 1985-1 4956 Butte 10 m N of E branch of Potter Ravine, ca 2.25 mi N of Oroville Dam 350 Comment
  CHSC49523  Bromus suksdorfii Vernon Oswald; Lowell Ahart 1987-8-5 3183 Butte Rock outcrops skirting the n flank of Humboldt Peak on the Butte-Plumas county border, s of the Pacific Crest Trail. 2072 Comment
  UCR115097  Bromus suksdorfii G. Fred Hrusa, T. D. Wilfred 1996-7-9 13139 Butte Sierra Nevada Mtns., Plumas National Forest. Above Jordan Creek, south of Hwy 162 near Roger's Cow Camp 1250 Comment
  CHSC35748  Bromus tectorum R. E. Preston 1982-5-18 283 Butte Roadside. Forbestown Diversion Dam. 548 Comment
  CHSC9482  Bromus tectorum Harley J. Parmenter 1969-3-4 22 Butte 40 yds. s of Richardson Spring Road, 5 yds e of Cohasset Road. 97 Comment
  CHSC50388  Bromus vulgaris Vernon Oswald 1990-6-1 4276 Butte Butte Creek Trail, ca. 2 miles north-northwest of Lake De Sabla. Near the second intermittent streamlet south of the trailhead on Ponderosa Way (Doe Mill Rd). 609 Comment
  CAS-BOT-BC18155  Bulbostylis capillaris Lowell Ahart 1980-7-20 2472 Butte At Big Bald Rock. 1100 Comment
  CHSC3958  Calandrinia ciliata Ann Dolder 1967-4-8 Butte Ca. 100 yds e of road on Table Mt., 6 1/2 miles from Oroville. 335 Comment
  SEINET4169756  Calliprora scabra A. A. Heller 1919-5-18 13167 A Butte Stirling , in fine gravel 1074 Comment
  CHSC99478  Callitriche heterophylla var. heterophylla Lowell Ahart 2008-6-13 14829 Butte In shallow water, bottom of Oregon Gulch, bottom of an old gold mined area, about 400 yards southwest of the cemetery, about 10 miles (air) northeast of Oroville. 305 Comment
  JEPS95760  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
  CHSC3904  Calocedrus decurrens R. Carter 1967-12-31 502 Butte Found ca. 17 mi. NE of Oroville on W side Big Bald Rock along E side Bald Rock Rd. where road turns off to campground. 1066 Comment
  SBBG28817  Calocedrus decurrens E. B. Copeland 1931-7-28 Butte Jonesville, W of North Willow Crk 1650 Comment
  SEINET10531065  Calocedrus decurrens Lowell Ahart, Peter Ahart 1985-9-15 Ahart 5168 Butte On dry lava cap, about 2 miles west of Sly Creek Reservoir, east of the intersection of Golden Trout Crossing road on Reville Ridge. 915 Comment
  SEINET10531072  Calocedrus decurrens Mary Susan Taylor, Lowell Ahart 1981-8-15 Taylor 4182 Butte T25N R4E se 1/4 se 1/4 sec 29. Paradise NE quad. Weed lot on N side of the Skyway in Inskip. Yellow Pine Forest. 4800 ft. 1463 Comment
  CHSC3306  Calochortus albus M. L. Hillier 1966-5-7 Butte 2.5 miles e. of covered bridge. Comment
  CHSC4675  Calochortus albus R. Carter 1966-4-30 385 Butte Found 7 mi. E of Oroville ca. 1/8 mi. W off Feathervale at 6120 Woodleaf St. Rt. 243 Comment
  OBI48097  Calochortus coeruleus Rhonda Riggins 1989-4-27 1627 Butte Edge of woods along Detlow rd, 0.4 mi S US 70, 2.6 mi SW Jarbo Camp Fire Station, 8.0 mi SW Pulga 640 Comment
  UC600459  Calochortus leichtlinii H. F. Copeland 1932-7-24 Butte sw of Butte Creek Meadows; Jonesville 1800 Comment
  HSC66348  Calochortus leichtlinii M. S. Taylor, Jim Jokerst, L. Ahart 1980-8-2 3208 Butte Humboldt Peak, top and W side trail 2155 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
  CHSC67726  Calochortus luteus James D. Jokerst 1979-5-9 224 Butte At junction of Skyway and Coutolenc Rd. Magalia serpentine. Comment
  CHSC67727  Calochortus luteus James D. Jokerst; M. S. Taylor 1980-5-5 712 Butte SW of junction of Rock Creek Rd. and Cohasset Hwy. Several miles N of Chico. Comment
  HSC38030  Calochortus luteus Thomas W. Nelson, Jane P. Nelson 1976-5-10 2492 Butte Beside Skyway, 2 mi. W of Paradise Comment
  CAS-BOT-BC491853  Calochortus luteus E. B. Copeland 1899-4-1 s.n. Butte Chico Comment
  CAS-BOT-BC491862  Calochortus luteus Lewis S. Rose 1945-5-12 45047 Butte Richardsons Springs 304 Comment
  SEINET12048534  Calochortus luteus Unknown 1984-1 11 Butte ca 9 mi NE Chico and 100 yds N Big Chico Creek 206 Comment
  CHSC84919  Calochortus monophyllus Janice Morris 1995-4-24 91 Butte Ca. 1/2 mi. s of Mud Creek, 1/2 mi e of Richardson Springs Resort. 304 Comment
  JEPS115592  Calochortus monophyllus Lowell Ahart 2009-4-22 15597 Butte West side of Guardians Trail, about 100 yards north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  SEINET7073601  Calochortus monophyllus A. G. Vestal 1955-5-20 s.n. Butte Honey Run Road above Honey Run east of Paradise. UTM Zone 10, 615564mE, 4400438mN. Coordinate datum: NAD27. Comment
  CAS-BOT-BC493117  Calochortus monophyllus A. A. Heller 1939-4-10 15372 Butte Upper end of Cohasset Comment
  POM109542  Calochortus tolmiei C. C. Bruce 1898-05 2407 Butte [No locality information provided] Comment
  CHSC38330  Calycadenia ciliosa Vernon H. Oswald 1983-8-10 976 Butte Upper Bidwell Park, Chico, ca. 1400 ft N of Upper Park Rd. along the trail up to the north rim near the power lines. 152 Comment
  CAS-BOT-BC270002  Calycadenia multiglandulosa Lowell Ahart 1980-6-19 2390 Butte Along Swedes Flat Road, near Bangor 320 Comment
  CAS-BOT-BC106087  Calycadenia oppositifolia David D. Keck 1928-6-16 452 Butte 1.5 miles south of Berry Creek Inn 609 Comment
  CDA10576  Calycadenia oppositifolia J. Glazner, D. Zippin 1999-6-15 s.n. Butte Sierra Nevada; Upper reach of Nance Canyon, 3/8 mile south-southeast of Skyway Boulevard under transmission line. Comment
  CHSC108165  Calycadenia oppositifolia L. P. Janeway 2011-8-17 10657 Butte Northern High Sierra Nevada. Plumas National Forest; east slope of Bloomer Hill, 850m east-southeast of the top. Small flat at western end of the rock-garden-like opening in Ponderosa pine dominated mixed conifer forest. 721 Comment
  CHSC29833  Calycadenia oppositifolia M. S. Taylor; R. S. Schlising, L. Ahart 1980-5-31 2753 Butte Kunkle Reservoir, on E side of Pentz-Magalia Hwy, ca. 3 mi S of Paradise. 441 Comment
  CHSC30940  Calycadenia oppositifolia L. Ahart 1980-7-4 2448 Butte Near the Oak Grove Cemetary, ca. 1/2 mi SE of Hurleton. 600 Comment
  CHSC44955  Calycadenia oppositifolia Pauleen Broyles 1988-4-19 1107 Butte Lower Nance Canyon. 90 Comment
  CHSC78118  Calycadenia oppositifolia Lowell Ahart 2000-5-31 8415 Butte A serpentine ridge, about 200 yards east of where Kunkle Creek enters Lake Oroville, east of the Kunkle Power House, about 3 miles southeast of Paradise. 335 Comment
  JEPS20316  Calycadenia oppositifolia Lewis S. Rose 1955-6-15 55106 Butte 3 mi e Pentz; West Branch of North Fork of Feather River 182 Comment
  UC1876185  Calycadenia oppositifolia Gerald D. Carr 1971-5-23 553 Butte Vic. Jarbo Gap, Hwy 70, above turnout to Concow Rd. Comment
  UC88991  Calycadenia oppositifolia Mrs. R. M. Austin 1886-5-1 169 Butte Iron Canyon Comment
  SEINET10475224  Calycadenia spicata Mary Susan Taylor 1979-5-6 Taylor 1998 A Butte Peter & Lowel Ahart Ranch, Honcut; Valley Grassland. Comment
  CHSC28428  Calycadenia truncata M. S. Taylor 1979-10-5 2231 Butte SE side of Paradise Lake, ca. 1/2 mi N of Coutolenc Rd., ca. 5 mi N of Magalia. 731 Comment
  CHSC84753  Calycadenia truncata L. P. Janeway; John Hunt 2003-6-20 7857 Butte Northern Sierra Nevada Foothills. Serpentine outcrops on west side of West Branch Feather River arm of Lake Oroville, half way between Lime Saddle and Cape Horn. 296 Comment
  JEPS105683  Calycadenia truncata L. P. Janeway and John Hunt 2003-6-20 7857 Butte Northern Sierra Nevasda Foothills; W side of West Branch Feather River arm of Lake Oroville, half way between Lime Saddle and Cape Horn 296 Comment
  RSA0118938  Calycadenia truncata Lowell Ahart 2013-11-13 19254 Butte Between the road and the large cutbank, about 50 yards southeast of the Ponderosa Dam spillway. 300 Comment
  SEINET10475221  Calycadenia truncata subsp. scabrella Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4153 Butte T20N R5E nw sec 17. Along edge of Ponderosa Way (Big Ridge Rd), ca. 1.5 mi se of East Fork Canyon Creek, ca. 14.5 mi ne of Oroville. Foothill Woodland. 575 Comment
  CAS-BOT-BC275377  Calycadenia truncata var. truncata H. M. Hall 1930-8-11 12874 Butte Humboldt Road, 8.2 miles from Chico 381 Comment
  JEPS110119  Calycanthus occidentalis Lowell Ahart 2006-6-9 12662 Butte On the west side of Bardees Bar Road, at 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
  SEINET5336314  Calyptridium paniculatum K. Conger 1907-1 s.n. Butte Brush Creek. Comment
  CAS-BOT-BC223609  Calystegia atriplicifolia subsp. buttensis R. K. Brummitt; R. Schlising 1998-5-16 19869 Butte Forest Ranch, 22 km NE of Chico on Rte. 32, at Schott Road junction 800 Comment
  CHSC46783  Calystegia atriplicifolia subsp. buttensis R. A. Schlising 1983-6-9 4423 Butte Along Hwy 32, 7.2 mile N of Nopel Road in Forest Ranch. Comment
  JEPS108793  Calystegia occidentalis subsp. occidentalis Lowell Ahart 2006-6-9 12642 Butte On the sides of a dead end side road, north side of the service road to Bardees Bar along the North Fork of the Feather River, about 50 yards east of the electric tower, on the east side of Highway 70, about 2 3/4 miles (air) southwest of Pulga 534 Comment
  RSA4474  Calystegia occidentalis subsp. occidentalis E. B. Copeland 1931-7-4 674 Butte Jonesville. 1550 Comment
  UC436301  Calystegia occidentalis var. tomentella E. B. Copeland July, 1930 Butte Jonesville 1550 Comment
  CAS-BOT-BC496965  Camassia leichtlinii subsp. suksdorfii Lowell Ahart 1982-6-1 3528 Butte A little south of the intersection of Black Bart Road and Forbestown Road, west of Forbestown 750 Comment
  CHSC51082  Camassia quamash subsp. quamash Pauleen Broyles 1987-7-19 1079 Butte Ca. 7.2 km (air) NE of Inskip. 526 Comment
  CHSC108967  Camellia reticulata Lowell Ahart; John Dittes, Josephine Guardino 2012-4-6 17805 Butte On the north side of Big Chico creek, Lost Park in Bidwell Park, city of Chico. 60 Comment
  CHSC44515  Camissonia contorta Lowell Ahart 1988-5-30 6019 Butte Near the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC50051  Camissonia contorta Lowell Ahart 1990-3-28 6427 Butte In the borrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  POM38436  Camissonia graciliflora C. C. Bruce 1897-05 1957 Butte Near Chico. Comment
  UC1120059  Campanula prenanthoides P. L. Johannsen 1936-7-28 967 Butte 2 1/4 mi n junction of Butte and Secret Creeks (Plot 11); Paynes Creek Quadrangle Comment
  SEINET10939041  Campanula scouleri Hall Hall 9798 Butte NEAR BUTTE MEADOES, ON FLAT IN SHADE OF CEDAR & PINE 1280 Comment
  CHSC10793  Capsella bursa-pastoris Lowell Ahart 1972-5-24 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CAS-BOT-BC37265  Cardamine breweri Lowell Ahart 1977-7-26 s.n. Butte Sutter Buttes Region. One mile north of the Golden Trout Crossing on the South Fork of the Feather River. 650 Comment
  CHSC60664  Cardamine californica var. californica Vernon H. Oswald 1993-4-12 5258 Butte S wall of Flag Canyon on the NW edge of North Table Mtn., N of Oroville. Along an old track. 341 Comment
  CAS-BOT-BC37875  Cardamine oligosperma A. A. Heller 1914-3-12 11196 Butte In the Canyon of Big Chico Creek. 68 Comment
  CHSC29224  Cardamine oligosperma M. S. Taylor; J. D. Jokerst 1980-3-28 2406 Butte Just e of Chico, between Humboldt Rd, and Hwy 32, ca. 1/4 mi e of Forest Ave., ca. 1 1/2 mi e of Hwy 99. 76 Comment
  CHSC92568  Cardamine oligosperma L. P. Janeway 2005-3-1 8335 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  HSC64130  Cardamine oligosperma J. P. Smith 1973-3-22 5922 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  JEPS122189  Cardamine oligosperma Lowell Ahart 2014-4-16 19361 Butte On the sides but near the bottom of a large canal, about 100 yards north of East Gridley Road, on the west side of the Feather River, about 2 miles east of Gridley. Comment
  CHSC32738  Cardamine pachystigma var. dissectifolia M. S. Taylor; L. Hanson 1981-4-10 3524 Butte On n facing slope, from creek to ridge ca. 1/4 mi n of Pine Cluster Ranch, ca. 6 mi n of Jarbo Gap on Hwy 70, ca. 21 air mi n of Oroville. 822 Comment
  CHSC87569  Carduus pycnocephalus R. D. Fischer 2004-4-20 142 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located along Guardian Trail north of Disk Golf Course. Another population observed in park on lower Yahi Trail. UTM: 10608843E 4404282N. 313 Comment
  JEPS117177  Carex abrupta Lowell Ahart 2010-9-21 17200 Butte About 50 yards east of the poor dirt road, about 100 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
  CHSC45044  Carex amplifolia Vernon Oswald 1983-6-22 755 Butte Beside Butte Creek w of Humbolt Rd. 0.3 mi s-w of Cherry Hill Campground. 1371 Comment
  SEINET7550020 Image available Carex aquatilis L. P. Janeway, Gavin Blosser, John Hunt 2003-4-22 7764 Butte Oroville Dam quad. Northern Sierra Nevada Foothills. Just below high water line of Lake Oroville on south side of Bloomer Point Campground (west side of the lake); 4.7 km southwest of Bloomer Hill. 271 Comment
  RSA364594  Carex athrostachya H. F. Copeland 1928-8-20 1063 Butte Jonesville. 1524 Comment
  SEINET10856119  Carex athrostachya Edwin B. Copel 1928-7-28 Copeland 607 Butte Jonesville. About the edges of the ''Lily Pond'', a permanent pool, warm in summer. 1770 Comment
  CHSC42371  Carex aurea Lowell Ahart 1987-5-22 5678 Butte Near the dirt road, about 1/8 mile north-east of Camp 18, about 6 1/2 miles north-east of Feather Falls. 1219 Comment
  CHSC109622  Carex barbarae Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18004 Butte West of the horse path, on the south side of the paved park road, southwest of the old walnut orchard, south of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. 76 Comment
  JEPS120141  Carex barbarae Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18004 Butte West of the horse path, on the south side of the paved park road, southwest of the old walnut orchard, south of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  UCD140157  Carex barbarae L. P. Janeway 1986-9-11 1842 Butte city of Chico, campus of CSU, Chico. Big Chico Creek, SE of Butte Hall. 59 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
  SEINET7552591 Image available Carex bolanderi Robert F. C. Naczi, Anton A. Reznicek 2006-8-1 11403 Butte ca. 4 mi NE of community of Butte Meadows, ca. 0.1 mi N of Cherry Hill Campground, at crossing of small tributary of Butte Creek, W side of paved road. 1448 Comment
  SEINET10706541  Carex bolanderi Lawrence P. Janeway 1987-6-8 Janeway 2156 Butte T22N, R6E, Brush Creek Quad, NW 1/4 of sec 19. Along French Creek ca 1/2 mile north of Bush Creek and near bridge of road to Coyote Gap. In sand and rocks (granitic) adjacent to the creek; shady. 640 Comment
  UCD140164  Carex bolanderi L. P. Janeway; B. Castro, Pat Kelly 1987-5-10 2032 Butte Butte Creek Trail, above Butte Creek ca. 1 mile south of the Doe Mill Road bridge. 609 Comment
  SEINET8215214  Carex cyrtostachya Unknown 2011-8-5 25715 Butte Forest Road 20N03 (Moreville Ridge Road), 2 air miles southeast of Sugar Pine Point, Pinkard Creek drainage, northern Sierra Nevada Highlands. 1075 Comment
  JEPS116081  Carex densa Lowell Ahart 2009-5-23 15730 Butte On the west side of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 236 Comment
  CHSC111961  Carex divulsa subsp. divulsa Lowell Ahart 2012-5-25 18113 Butte On dry good soil, not maintained lawn, NW of intersection of W. Frances Willard Ave. and Arcadian Ave., 1 block so. of Chico High School, Chico. 59 Comment
  SEINET10649998  Carex echinata Lawrence P. Janeway, Robert A. Schlising; B. Castro; F. Jay Fuller 1988-7-11 Janeway 2989 Butte T24N, R5E, Kimshew Point quad SE 1/4 of sec. 6. At Crane Valley (upper Big Kimshew Cr); a large montane meadow. Mossy edge of shallow water. Comment
  CHSC105486  Carex feta B. Castro 2010-6-19 100028 Butte Northern High Sierra Nevada. Along Bean Creek Road 0.4 km northwest of spur road to Dome Trail trailhead; 1.2 km south-southwest of Bald Rock Dome; on ridge between Middle Fork Feather River and Bean Creek. 883 Comment
  CHSC106460  Carex feta Peter F. Zika 2009-6-17 24511 Butte Cascade Range Highlands (CaRH). E side of Concow Road near Clear Creek Ranch, 5 road miles N of Route 70. Common in partly shaded seeps. 620 Comment
  CHSC40661  Carex feta J. D. Jokerst 1984-5-19 2025 Butte Perennial seepage along the edge of Highway 70 directly across from a roadside rest area along a small dirt road that parallels Hwy 70. Comment
  CHSC92414  Carex feta Robert F. C. Naczi; Lawrence P. Janeway 2004-7-23 10502 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
  UCD140309  Carex feta L. P. Janeway 1988-6-14 2783 Butte upper reaches of Haw Creek, 1.75 air miles SE of Lomo. 1226 Comment
  JEPS103106  Carex fracta L. P. Janeway, B. Castro 2002-7-7 7618 Butte High Cascade Range. Along logging spur road, 0.5 km east of the County Road (Forest Service Road 25N02); 3.4 km northeast of Bald Mountain Lookout and 1.6 km southwest of Jones Meadow 1829 Comment
  CHSC101144  Carex gracilior Lowell Ahart 2009-5-15 15710 Butte East bank of Big Chico Creek, on the west side of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 234 Comment
  CHSC76349  Carex heteroneura var. heteroneura L. P. Janeway 1999-7-17 6508 Butte Along Scotts John Creek 0.2 mi north of the road that connects Humboldt Road and Humbug Road. 1749 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
  HSC96350  Carex hirtissima L. P. Janeway 2003-6-8 7816 Butte Flea Valley, meadow at head of Concow Creek 1116 Comment
  CHSC35706  Carex hirtissima J. D. Jokerst 1982-5-8 1568 Butte N of Forbestown along Ponderosa Way 3/10 mi N of its junction with Lower Forbestown Road. Comment
  CHSC52868  Carex integra L. P. Janeway 1988-6-19 2836 Butte 3.1 mi N of Stirling City towards Inskip; along logging road 0.2 mi W of Skyway. 1219 Comment
  JEPS117643  Carex integra Lowell Ahart 2010-9-28 17271 Butte About 20 yards west of Big Kimshew Creek, meadow, about 100 yards east of the poor dirt road, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir 1886 Comment
  JEPS116639  Carex inversa L. P. Janeway 2009-11-16 9967 Butte Oroville Sacramento Valley (south side of Broderick Street between Pine Street and Elma Street. At edges of old lawn between the two buildings of the Chinese Temple and Museum.) 44 Comment
  CHSC113953  Carex laeviculmis Lowell Ahart 2014-7-10 19608 Butte About 100 yards east of Memorial Spring and the Skyway,about a mile southwest of the intersection of Humbug Road and Philbrook Road, about 2-1/2 miles (air) northwest of Philbrook Reservoir. 1561 Comment
  SEINET10467308  Carex laeviculmis Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4746 Butte About 1 1/2 mile south-east of Bald Mountain, 3/4 mile west of Oak Point, about 4 miles north-east of Stirling City. Comment
  CHSC44935  Carex lemmonii Lowell Ahart 1988-7-31 6145 Butte On the east side of the West Branch of the Feather River, north of the bridge, about 4 road miles north of Stirling City. 914 Comment
  CHSC45254  Carex lemmonii L. P. Janeway 1988-7-2 2946 Butte Marsh/mdw at upper reach of Brush Cr, ca 1.5 mi S of 'town' of Brush Creek. 952 Comment
  HSC86882  Carex lemmonii L. P. Janeway 1987-6-26 2289 Butte Rag Dump 1174 Comment
  CAS-BOT-BC32160  Carex multicaulis L. P. Janeway 1988-5-19 2666 Butte Cohasset quad, West Branch Mud Creek at crossing of Vilas Road, E of Cohasset. 746 Comment
  SEINET7568477 Image available Carex multicaulis Lowell Ahart 1987-5-11 5623 Butte North of the Forbestown Ditch along the dirt road, about 2 1/2 miles north-east of Forbestown. 853 Comment
  CHSC44102  Carex nervina L. P. Janeway 1987-6-27 2341 Butte Along Little Kimshew Cr 0.7 mi N of the Concow Rd via dirt rd. 1508 Comment
  JEPS116090  Carex nudata Lowell Ahart 2009-5-15 15708 Butte On the east bank of Big Chico Creek, on the west side of the dirt road which isTen Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 234 Comment
  CAS-BOT-BC119564  Carex nudata L. P. Janeway 1987-5-10 2034 Butte Stirling City quad. Butte Creek ca 500 ft upstream from the Doe Mill Rd bridge, 609 Comment
  CHSC84733  Carex pachystachya L. P. Janeway; John Hunt 2003-5-8 7781 Butte Sacramento Valley. North end of Chico; along Sycamore Creek 90 m west of Cohasset Road bridge. 56 Comment
  CHSC44992  Carex praegracilis S. C. Morey 1983-7-24 624 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  CHSC46996  Carex praegracilis Vernon Oswald 1988-4-26 3281 Butte Gray Lodge Waterfowl Management Area, just s of Rutherford Rd., 0.5 mi w of Pennington Rd. 21 Comment
  CHSC68376  Carex praegracilis L. P. Janeway 1996-5-27 4982 Butte South side of Lunt Road, 300 ft east of Nelson Bar Road. Between Lunt Road and a branch of Hodapp Creek. 457 Comment
  CHSC47139  Carex retroflexa var. texensis L. P. Janeway; Mary Halterman 1988-5-8 2660 Butte City of Chico; next to house on Broadway between 19th and 20th Streets. 59 Comment
  CHSC44169  Carex straminiformis V. Oswald; L. Ahart 1988-7-29 3647 Butte Ca. 5 mi (air) se of Jonesville on the ridge running eastwards from the peak of Snow Mtn. 2097 Comment
  CAS-BOT-BC116735  Carex subfusca Herbert Faulkner Copeland 1932-7-14 s.n. Butte Jonesville, along ditches and in damp places. Comment
  CAS-BOT-BC116736  Carex subfusca Herbert Faulkner Copeland 1929-7-20 611 Butte Jonesville, in woods by Jones Creek. 1500 Comment
  CHSC45071  Carex subfusca Vernon Oswald 1987-5-12 2391 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
  CHSC83190  Carex subfusca L. P. Janeway; B. Castro 2002-7-7 7620 Butte High Cascade Range. Along the County Road above Discovery Creek and Last Chance Creek; 1.3 km north of Bald Mountain Lookout. 1609 Comment
  SEINET7577207 Image available Carex subfusca E. B. Copeland 1929-7-20 611 Butte Jonesville, by Jones Creek. 1500 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
  CAS-BOT-BC114981  Carex vulpinoidea J. Sigg 1987-6-5 2954 Butte E side of the Sacramento River just N of Golden State Island. 33 Comment
  CHSC44705  Castilleja affinis R. Banchero 1980-4-7 95 Butte Along Swedes Flat Rd ca 2.6 mi E of its jct with the Bangor Hwy. Ca 0.8 mi W of the jct of the Hurleton-Swedes Flats Rd and Swede Flat rd. 373 Comment
  JEPS124226  Castilleja affinis subsp. affinis Lowell Ahart 2015-3-21 19956 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
  CHSC109577  Castilleja applegatei subsp. pinetorum L. P. Janeway 2012-6-23 10887 Butte Northern High Sierra Nevada. Southwestern spur of Rocky Ridge, 0.6 air km south of Batchelor Point; along Road 23N06E 0.8 road km southeast of Rim Road/Ponderosa Way. 895 Comment
  CHSC114974  Castilleja applegatei subsp. pinetorum Lowell Ahart 2015-4-18 20055 B Butte On the east side of the road to Forbeestown Reservoir, about 1/4 mile southwest of the Forbestown Reservoir, about 3-1/2 miles (air) northeast of Forbestown. 573 Comment
  JEPS26677  Castilleja applegatei subsp. pinetorum P. C. Hutchison 1961-6-9 2103 Butte along U.S. Alt 40 at Pulga Bridge (canyon of the north fork of the Feather River, w side of river) Comment
  UC726497  Castilleja applegatei subsp. pinetorum A. A. Heller 1942-6-5 16498 Butte 3 mi w Pulga Comment
  SEINET10549334  Castilleja applegatei var. fragilis Lowell Ahart 1985-5-15 Ahart 5005 Butte 1/8 mile east of the dirt road, about 1 1/2 miles north-east of Concow of Reservoir. Comment
  SEINET10549337  Castilleja applegatei var. fragilis Mary Susan Taylor 1978-7-18 Taylor 1701 Butte On top of Humboldt Peak, at Humboldt Summit, on Butte-Tehama County line. 2159 Comment
  SEINET10865280  Castilleja applegatei var. fragilis Mary Susan Taylor 1978-5-6 Taylor 1583 Butte Just N of Magalia, in large serpentine area along the Skyway. 610 Comment
  CAS-BOT-BC255457  Castilleja applegatei var. pinetorum Lowell Ahart 1988-5-1 5978 Butte Along the North Fork of the Feather River a little north of the Poe Power House, about 2 miles south-east of Jarbo Gap 920 Comment
  UC492740  Castilleja arachnoidea H. F. Copeland 1932-8-19 Butte ridge se head of Butte Creek; Jonesville 2100 Comment
  CHSC2827  Castilleja attenuata David Prall 1965-3-14 13 Butte Neal Rd. 1 mile east of Hw. 99E. 106 Comment
  CHSC38710  Castilleja attenuata Vernon Oswald 1983-3-9 144 Butte Upper Bidwell Park, Chico, on the north slope near the head of the intermittent stream which crosses Upper Pard Rd. 0.5 mi e of the power lines. 213 Comment
  CHSC112905  Castilleja campestris B. Castro; Robin Carter 2011-4-29 1875 Butte Sacramento Valley. Between Hwy 99 and the Thermalito Afterbay levee, ca 0.6 mi S of jcn of Hwys 99 and 162W, ca 0.4 mi N of Hamilton Road. 34 Comment
  UC725423  Castilleja campestris subsp. campestris A. A. Heller 1938-5-13 15078 Butte e of Richvale (on U.S. Hwy 99E, near the Y) Comment
  CHSC1828  Castilleja exserta E. Canfield 1904-4-23 Butte 76 Comment
  CHSC90141  Castilleja exserta subsp. exserta Dennis Chambers 1981-4-24 16 Butte Cal State Chico Range approximately 1.7 mi north on Meridian Road off of Hwy 99, east 0.7 mi on north side of road. 65 Comment
  CHSC38712  Castilleja lacera Vernon Oswald 1983-4-18 341 Butte Upper Bidwell Park, Chico, along the trail ca. 200 ft below (south of) the north rim at the power lines. 213 Comment
  CHSC44430  Castilleja lacera Lowell Ahart 1988-6-15 6040 Butte North of Forbestown Road, about 100 meters east of the intersection of Black Bart Road and Forbestown Road, about 1 mile west of Robinson Mill Road. 670 Comment
  JEPS80685  Castilleja lacera L. R. Heckard and T. I. Chuang 1981-6-11 5536 Butte 0.5 mi w Forbestown Road junction with Lumpkin Road (along Forbestown Road, ca 12 air mi e of Oroville) 609 Comment
  CAS-BOT-BC241125  Castilleja miniata A. A. Heller 1914-7-23 11612 Butte Sierra Nevada at Chico Meadows 1280 Comment
  CAS-BOT-BC241126  Castilleja miniata A. A. Heller 1914-8-7 11658 Butte Summit back of and east of Jonesville, on a north slope just below the crest of the ridge 2133 Comment
  RSA32001  Castilleja subinclusa subsp. subinclusa A. A. Heller 1941-4-12 16006 Butte Pentz-Paradise grade; 2 m. above Pentz. A few scattered clumps in clay soil on a slope nar shrubs. Comment
  CHSC107595  Castilleja tenuis Lowell Ahart 2011-7-9 17575 Butte Along a small wash, southwest edge of a large open bare granite area, about 3/8 mile northeast of Little Bald Rock, about 2 miles (air) southeast of Brush Creek, about 15 miles (air) northeast of Oroville. 967 Comment
  CHSC11890  Castilleja tenuis E. B. Copeland 1930-6-28 470 A Butte Jonesville. In 'Scotch John' meadow. 1700 Comment
  UC532168  Castilleja tenuis Herbert F. Copeland 1934-7-9 Butte edge of Butte Creek Meadows (Jonesville Region); Jonesville Region Comment
  CAS-BOT-BC48543  Ceanothus cordulatus A. A. Heller 1913-6-7 10828 Butte West Branch of the North Fork of the Feather river near Stirling 914 Comment
  UC398932  Ceanothus cordulatus E. B. Copeland 1929-7-14 382 Butte Jonesville 1550 Comment
  CAS-BOT-BC48810  Ceanothus cuneatus John Thomas Howell 1975-6-15 51079 Butte about 5 miles from Paradise on Skyway to Chico Comment
  CAS-BOT-BC49256  Ceanothus cuneatus A. A. Heller 1914-3-19 11210 Butte Canyon of Big Chico Creek 76 Comment
  UC203656  Ceanothus cuneatus var. cuneatus A. A. Heller 1914-3-19 11210 Butte canyon of Big Chico Creek 76 Comment
  CHSC81549  Ceanothus integerrimus Julie Rose 2000-4-25 89 Butte 6.8 miles on Hwy 32 East to Green Gate. At the beginning of the trail. 365 Comment
  CHSC31437  Ceanothus integerrimus var. californicus L. Ahart 1980-9-10 2645 Butte Along edge of rd ca. 7 mi e of Millsap Bar, ca. 32 mi ne of Oroville. 1200 Comment
  CHSC55404  Ceanothus integerrimus var. macrothyrsus C. G. Morris 1991-4-18 14 Butte Collected 60 yds n of Castle Dr., 0.6 mi w of Oliver Rd., Paradise. 533 Comment
  CAS-BOT-BC51731  Ceanothus lemmonii Helen M. Edwards 1917-6-1 s.n. Butte De Sabla Comment
  UC1070802  Ceanothus lemmonii A. E. Wieslander 1935-5-30 625 Butte Keefer Ridge Chico quad. 548 Comment
  CHSC10678  Ceanothus oliganthus var. sorediatus Lowell Ahart 1965-4-15 Butte Robinson Mill Road. 60 Comment
  CAS-BOT-BC52006  Ceanothus prostratus Carl B. Wolf 1941-7-23 11054 Butte Northern Sierra Nevada. 7 mi. W. of De Sable on rd. to Forest Ranch 762 Comment
  RSA753078  Ceanothus prostratus Dylan O. Burge 2007-5-11 DOB- 921 b Butte East shore of Lake de Sabla, 1.5 road miles (2.4 km) N of intersection with Magalia Nimshew Road on Skyway, 7.35 km 338 degrees (True) NNW of Magalia. 850 Comment
  UCD40397  Ceanothus prostratus Rodney Gale Myatt 1971-6-13 730 Butte 1 mi. north of Inskip. Skyway Road, north of Paradise. Road between Butte Meadows and Magala. Comment
  UCR131691  Ceanothus prostratus C. B. Wolf 1941-7-23 11054 Butte Northern Sierra Nevada Mtns., 7 miles west of De Sable on road to Forest Ranch 762 Comment
  LA45120  Ceanothus velutinus E. B. Copeland; 1930-6-29 424 Butte Jonesville 1550.0 Comment
  CHSC6002  Cedrus atlantica M. MacArthur 1968-6-19 246 Butte Front of Administration bld., Chico State College. 60 Comment
  CHSC20502  Centaurea cyanus M. S. Taylor 1975-7-1 828 Butte 1456 Arcadian, Chico. 60 Comment
  SEINET10473682  Centaurea cyanus Mary Susan Taylor Taylor 828 Butte Weedy or cultivated plants of Chico. 61 Comment
  SEINET10474154  Centaurea melitensis Mary Susan Taylor 1981-3-24 Taylor 3447 Butte Two mile stretch along both sides of Feather River Hwy (70), just ne of Pulga to Cresta Powerhouse, ca. 20 mi ne of Oroville; granite gravels & soil; ca. 1700 ft. T23N R5E Pulga quad. 518 Comment
  JEPS118664  Centaurea stoebe subsp. micranthos L. P. Janeway 2010-8-5 10136 Butte Northern High Sierra Nevada. Plumas National Forest; along Road 21N48 (closed) about 300 m south of Milsap Bar Road; 1.1 km northwest of Middle Fork Feather River and 2.7 km southeast of Brush Creek (town). Comment
  JEPS115189  Centaurium muehlenbergii Lowell Ahart 2009-6-19 15943 Butte On dry soil, north of a trail to pond and table, on the east side of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 232 Comment
  POM76325  Centaurium muehlenbergii C. C. Bruce 1897-05 2007 Butte [Unspecified] Comment
  CHSC109599  Centaurium tenuiflorum Lowell Ahart; Susan Bazell, Josephine Guardino 2012-5-31 18123 Butte On the south side of the paved park road (Peterson Drive) about 100 yards west of the gate, lower Bidwell Park, Chico. 76 Comment
  CHSC78251  Centaurium tenuiflorum Lowell Ahart 2000-6-21 8496 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
  POM76323  Centaurium venustum C. C. Bruce 1897-06 2002 Butte Plains Comment
  SEINET10454834  Centaurium venustum Mary Susan Taylor 1980-5-15 Taylor 2632 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
  JEPS12459  Cephalanthus occidentalis var. californicus H. A. Dutton 1921-1 Butte Hooker Oak Chico (Chico) Comment
  CHSC92510  Cerastium glomeratum Lowell Ahart 2005-12-11 12524 Butte On the sides of small ditches, on the Rice Experiment Station, between the Main Ditch and Stine Lateral, on the north side of Hamilton Road, about 1/4 mile east of Riceton Highway, about 2 1/4 miles (air) east of Biggs. 30 Comment
  OBI69157  Cercis occidentalis Kari Fisher, Bill Fisher 2000-10-8 27 Butte Upper Bidwell Park, along Upper Bidwell Park rd 98 Comment
  CAS-BOT-BC137003  Cercocarpus betuloides var. betuloides Lowell Ahart 1987-7-3 5748 Butte Along the edge of Poe Power House Road, about 1 mile north-west of the Poe Power House, about 1 mile south-east of Jarbo Gap 548 Comment
  JEPS115231  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 C 407 Comment
  CHSC109567  Chamaebatia foliolosa L. P. Janeway 2012-6-27 10915 Butte Northern High Sierra Nevada. Near the top of Sunset Hill, just a little over the north side. Opening in mixed conifer forest. 1000 Comment
  CHSC54866  Chamaesyce nutans Vernon H. Oswald; Lowell Ahart 1991-8-28 4850 Butte Rice Experiment Station on the south side of Hwy 162, ca. 3.5 miles north-northwest of Biggs. On the margins of rice fields. 30 Comment
  UC1586408  Chamaesyce nutans Vernon H. Oswald and Lowell Ahart 1991-8-28 4850 Butte 3.5 mi ne Biggs (Rice Experiment Station on the s side of Hwy 162) 30 Comment
  CHSC45714  Chamaesyce ocellata Robert Schlising 1974-10-30 3160 Butte Chico; Bidwell Park area above golf course and rifle range. Comment
  SEINET13709719  Chamaesyce serpyllifolia Lowell William Ahart, Lowell William Ahart 1984-1 4785 Butte 5 Mi. SW Oroville Comment
  CHSC11782  Chamerion angustifolium subsp. circumvagum E. B. Copeland 1930-7-21 428 Butte Jonesville. 1600 Comment
  RSA712759  Cheilanthes gracillima L. P. Janeway 2005-5-29 8411 Butte Northern High Sierra Nevada, 0.2 kilometers of Concow Road at the gap between the head of Rock Creek and the Little Kimshew Creek drainage. 1478 Comment
  RSA746977  Chenopodium album var. missouriense George K. Helmkamp, E. Helmkamp 2007-10-7 13065 Butte East Gridley Road at the west edge of the Feather River bridge 27 Comment
  CHSC51255  Chenopodium berlandieri Lowell Ahart 1990-9-30 6609 Butte On the south side of the East Fork of Canyon Creek, below the high water line of Lake Oroville, about 1/8 mile north-east of the Canyon Creek Bridge across Lake Oroville. 243 Comment
  CHSC110403  Chenopodium strictum var. glaucophyllum Lowell Ahart 2012-9-28 18457 Butte Restoration area, south of Vallombrosa Avenue, north of Sycamore Pool in Big Chico Creek, Lower Bidwell Park, Chico. 62 Comment
  POM161685  Chimaphila menziesii E. B. Copeland 1929-07 s.n. Butte Jonesville. 1550 Comment
  CAS-BOT-BC451374  Chimaphila menziesii V. Oswald; L. Ahart 1988-7-29 3649 Butte 5 miles (air) SE of Jonesville on the ridge running eastwards from the peak of Snow Mtn 2097 Comment
  POM110260  Chlorogalum pomeridianum var. pomeridianum C. C. Bruce 1897-06 1839 Butte [No locality information provided] Comment
  CHSC45845  Chorizanthe membranacea Lowell Ahart 1975-6-5 783 Butte On dredger piles along North Honcut Creek, Peter Ahart Ranch, about 3/4 mile north and 2 1/2 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  POM193562  Chorizanthe membranacea C. C. Bruce 1896-05 155 Butte Iron Canyon Comment
  UCD99736  Chorizanthe membranacea L. Ahart 1984-6-8 4678 Butte Along the dirt road near the water tower, above the generator, ca. 1 mi E of Ponderosa Dam, ca. 2 mi N of Forbestown. 475 Comment
  CHSC103997  Chorizanthe polygonoides var. polygonoides Lowell Ahart 2010-5-7 16617 Butte On the north side of a trail, west of disk golf area, on a ridge about 350 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 353 Comment
  NY285649  Chorizanthe polygonoides var. polygonoides C. C. Parry s.n. Butte Comment
  CAS-BOT-BC279860  Cichorium intybus A. A. Heller 1914-7-11 11559 Butte Near Chico Comment
  CHSC49528  Cinna latifolia Vernon Oswald; Lowell Ahart 1987-8-5 3192 Butte Scotts John Creek 1.3 mi n of the road connecting Humboldt and Humbug roads. On the edge of the creek. 1813 Comment
  CHSC8115  Cirsium andersonii Dave Isle 1969-5-20 484 Butte 1/2 mile E. of golf course on N. side of road in Upper Bidwell Park, Chico. 59 Comment
  SEINET179237 Image available Cirsium andersonii E. B. Copeland 1931-7-27 693 Butte Jonesville 1650 Comment
  CAS-BOT-BC285284  Cirsium andersonii Alice Eastwood 1912-8-22 1882 Butte Morgans Springs, Lassen Butte Region Comment
  UCD130510  Cirsium andersonii E. B. Copeland 1931-7-27 693 Butte Jonesville. 1650 Comment
  CHSC46719  Cirsium arvense R. A. Schlising; P. Broyles 1986-8-5 4499 Butte N part of county, NE of Snag Lake and W of Butte Creek House. Along Butte Creek. 1767 Comment
  CAS-BOT-BC278081  Cirsium douglasii var. breweri A. A. Heller 1914-8-7 11652 Butte Butte Meadows 1219 Comment
  CHSC21139  Cirsium occidentale var. venustum M. S. Taylor 1975-6-30 821 Butte Ca. 500 yds w of Cohasset Hwy, Cohasset. Comment
  CAS-BOT-BC228748  Cistanthe umbellata E. B. Copeland 1930-7-12 413 A Butte Above Jonesville 2000 Comment
  CAS-BOT-BC163542  Clarkia arcuata G. P. Van Eseltine 1918-5-5 1724 Butte Near Nimshew Comment
  HSC32601  Clarkia arcuata Kitsy Kelly 1974-4-20 24 Butte Table Mtn. Volcanic area Comment
  RSA32759  Clarkia arcuata A. A. Heller 1938-4-17 15041 -a Butte Back of Salmon Hole on Chico Creek east of Chico Comment
  UCD104329  Clarkia biloba subsp. brandegeeae L. P. Janeway 1993-9-20 4589 Butte Near Ponderosa Dam, South Fork Feather River. Comment
  UCD104440  Clarkia concinna M. Vincent 1963-6-8 395 Butte Honey Run Road. Comment
  JEPS102237  Clarkia gracilis subsp. albicaulis Samantha Hillaire 2001-5-16 Butte 0.3 mi SE of Big Chico Creek (vicinity of Ponderosa Way, on a steep roadcut of a little-used road, above and below the road) 353 Comment
  UC1186583  Clarkia gracilis subsp. albicaulis G. I. Stage, R. W. Thorp 1959-6-21 59 -120 Butte 11.9 mi ne Chico (Highway 32) Comment
  UCD104577  Clarkia mildrediae G. F. Hrusa; T. D. Wilfred 1996-7-9 13186 Butte Sierra Nevada. Plumas National Forest. Immed. S of Rogers Cow Camp on Highway 162. 1150 Comment
  UCR148890  Clarkia mildrediae G. Fred Hrusa, T. D. Wilfred 1996-7-9 13169 Butte Sierra Nevada - Plumas National Forest, c. 1 m. on 22N89; immediately south of Rogers Cow Camp on Hwy 162 335 Comment
  CHSC48630  Clarkia mildrediae subsp. mildrediae Vernon Oswald 1985-6-20 1846 Butte Hwy 32 0.2 mi s of Headwaters Rd. between Forest Ranch and Platte Mtn. Lookout. Near the road. 944 Comment
  LA206077  Clarkia mildrediae subsp. mildrediae Harlan Lewis; M. Lewis, Frank C. Vasek 1950-6-30 756 Butte Hwy 24, 0.05 mi S of Arch Rock on Feather River Comment
  RSA108425  Clarkia mildrediae subsp. mildrediae Harlan Lewis, M. Lewis, F. Vasek 1950-7-1 756 Butte Highway 24, 0.5 mile south of Arch Rock on Feather River. Comment
  CAS-BOT-BC163355  Clarkia mosquinii L. P. Janeway; Perrie Cobb 1993-7-6 4431 Butte Extreme southwestern end of Watson Ridge; about 0.9 mi north-east of Bald Rock Dome; along a trail (incomplete) to the falls of Feather Falls 914 Comment
  CAS-BOT-BC163356  Clarkia mosquinii L. P. Janeway 1993-7-12 4436 Butte Upper drainage of Berry Creek; along Rd 21N80 0.9 mi northwest of Zink Road 853 Comment
  CHSC86578  Clarkia mosquinii L. P. Janeway; John Hunt 2003-7-1 7861 Butte Northern High Sierra Nevada. Along southeast edge of Middle Fork Feather River arm of Lake Oroville, 960 m west-southwest of mouth of Frey Creek. Just above high water line. 276 Comment
  LA206069  Clarkia mosquinii Brian Le Neve; 1996-7-4 83 Butte French Creek Road Comment
  UC1606713  Clarkia mosquinii subsp. mosquinii L. P. Janeway 1995-7-15 4857 Butte 1.1 mi s of Pompys Point (s side of Watson Ridge about 2.2 mi ene of its western end); Watson Ridge 1115 Comment
  SEINET10492502  Clarkia mosquinii subsp. mosquinii Lawrence P. Janeway 1991-6-1 Janeway 3978 Butte Berry Creek quad T22N, R4E, SE 1/4 of SW 1/4 of sec 35, elev. 1780 feet. West-facing rocky cut-bank of Dark Canyon Road 0.6 mile south of Big Bend Road/Parkhill. Mid-slope of canyon in mixed conifer forest. 545 Comment
  UCD21825  Clarkia purpurea L. D. Gottlieb 2003-5-24 303 Butte Wilbur Rd., at Hwy 162, west of Oroville. Comment
  CAS-BOT-BC172534  Clarkia purpurea subsp. purpurea Lewis S. Rose 1963-6-5 63143 Butte 3 mi. W of Palermo 45 Comment
  CAS-BOT-BC163657  Clarkia purpurea subsp. quadrivulnera Lowell Ahart 1985-5-15 4978 Butte West of Lunt Road, about 1/2 mile north of the intersection of Lunt Road and Highway 70, north of Yankee Hill 550 Comment
  CHSC56556  Clarkia purpurea subsp. viminea L. P. Janeway 1991-6-1 3987 Butte Northwest-facing cut-bank of Dark Canyon Road 3.35 mi south of Big Bend Road/Parkhill. 304 Comment
  CHSC56557  Clarkia purpurea subsp. viminea L. P. Janeway 1991-6-1 3981 Butte Road-shoulder/top-of-fill of Dark Canyon Road 1.0 mi south of Big Bend Road/Parkhill. 512 Comment
  CAS-BOT-BC172381  Clarkia purpurea subsp. viminea Lowell Ahart 1984-5-28 4650 Butte Along Old Highway 40, now Dark Canyon Road, about 2 miles east of Old Yankee Hill, about 16 miles north-east of Oroville 450 Comment
  RSA448321  Clarkia purpurea subsp. viminea M. M. Boney 1897-1 s.n. Butte [No location information on label.] Comment
  RSA108407  Clarkia rhomboidea Harlan Lewis, M. Lewis 1947-6-11 398 Butte On Magalia to Stirling City Road, 1.4 mile from Magalia School 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
  CHSC111318  Clarkia rhomboidea Samantha Mackey Hillaire 2008-5-22 1256 B Butte Plumas National Forest. Roadcuts under powerlines. 731 Comment
  SEINET10885379  Clarkia rhomboidea Mary Susan Taylor 1982-6-24 Taylor 4727 Butte T23N R5E center sec 30. Pulga SW quad. Forest opening on disturbed soild, e side of Flea Mt. ridge, ca 1 mile se of Flea Mt., 1.7 miles se of Ponderosa Way, ca 8.9 miles n of Jarbo Gap on Hwy 70. Mixed Evergreen Forest; 3600 feet. With Silene pratensis. 1095 Comment
  SEINET12194214  Clarkia rhomboidea L. Ahart, Ahart, P. 1984-1 4651 Butte On a large road cutbank along Hwy. 40, now called Dark Canyon Rd., ca 2 mi E of Old Yankee Hill; 450 Comment
  UC172865  Clarkia unguiculata A. A. Heller 1913-5-28 10767 Butte 8 mi n Oroville; Table Mountain 182 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
  CHSC93511  Claytonia palustris K. L. Chambers 1987-6-11 5365 Butte Jonesville, on Humboldt Road at the junction with Colby Mtn. Lookout Rd., where a main tributary joins Battle Creek. 1500 Comment
  SD8155  Claytonia palustris Mrs. R. M. Austin 1883-1 Butte Butte County Comment
  SEINET10572695  Claytonia parviflora Mary Susan Taylor 1980-5-8 Taylor 2614 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
  CAS-BOT-BC439434  Claytonia parviflora subsp. parviflora Helen M. Edwards 1917-6-1 s.n. Butte De Sabla Comment
  CHSC3278  Claytonia parviflora subsp. parviflora M. L. Hillier 1966-5-11 Butte Along rd. side 2.4 miles 3. of covered bridge on Honeyrun rd. Comment
  CHSC33699  Claytonia parviflora subsp. parviflora L. Ahart 1981-4-9 2756 Butte On dry grassy soil on banks of North Honcut Creek, Peter Ahart Ranch, ca. 1 mi n and 3 mi e of Honcut. 50 Comment
  JEPS114966  Claytonia parviflora subsp. parviflora Lowell Ahart 2008-5-8 14718 Butte Below the high water line of Lake Oroville, about 300 yards south of the poor parking area, on the west side of McCabe Creek, about 3/4 mile southwest of the Enterprise Bridge, about 11 miles (air) east of Oroville 259 Comment
  CHSC101271  Claytonia perfoliata subsp. perfoliata Lowell Ahart 2009-4-3 15534 Butte Along the north margin of the paved road, north of the Cedar Grove parking area in Lower Bidwell Park, Chico. 67 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
  CHSC112352  Claytonia perfoliata subsp. perfoliata L. P. Janeway 3024-04-09 11223 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
  CHSC34764  Claytonia perfoliata subsp. perfoliata S. Scott 1981-4-24 Butte 1 km e of Manzanita Ave, and Centennial Ave intersection on Centennial Ave; ca. 2.5 mi e of Chicol 97 Comment
  CHSC34943  Claytonia perfoliata subsp. perfoliata W. A. Vaccaro 1976-4-17 2 Butte Pop. scattered N side of Humbug Rd., ca. 2 mi. E of Centerville. 129 Comment
  CHSC36155  Claytonia rubra subsp. rubra Jan Rumore 1982-4-17 16 Butte Widely scattered population, ca. 1 mi e of Forest Ranch, and 0.25 mi e on Forest Ranch Rd., and 0.10 mi w of A. J. Stohr Rd. termination, 1.2 mi e of Forest Ranch. 670 Comment
  JEPS121920  Claytonia rubra subsp. rubra Lowell Ahart 2014-7-10 19633 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  SFV11274  Claytonia sibirica M. L. Vincent 1968-6-8 834 Butte Soda Springs Campground. Comment
  JEPS119742  Clematis lasiantha Lowell Ahart 2012-3-23 17776 Butte About 100 yards south of the intersection of Guardian Trail and Ten Mile House Road, about 1/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  SFV1259  Clematis lasiantha M. L. Vincent 1960-1 97 Butte Comment
  UCD95626  Clematis lasiantha P. Thompson 1996-4-26 36 Butte Hwy 70. Along steep roadside next to a running creek. Comment
  SEINET12088731  Clematis lasiantha Unknown 1978-1 17 Butte ca 8 mi NE of Chico Municipal Airport and .5 mi NW of Rock Creek, 12 mi NE of Chico Comment
  SEINET5337773  Clematis lasiantha S. Dean 1979-4-24 s.n. Butte Hwy 70. Feather River Canyon. Oroville-Quincy. Approximately 20 miles from Oroville. 1067 Comment
  CHSC3817  Collinsia sparsiflora L. E. Dunkel 1965-2-23 1 Butte Along road bank ca. 200 yards e of covered bridge, on centerville road of Butte Canyon. 54 Comment
  HSC32685  Collinsia sparsiflora var. collina David Johnson 1974-4-20 49 Butte Table Mtn. 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
  CHSC44726  Collinsia tinctoria R. Banchero 1980-6-19 253 Butte Along Concow Rd 1.1 mi N of its jct with Hwy 70, 0.1 mi N of the town of Concow. 554 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
  POM252812  Collinsia tinctoria A. A. Heller 1938-5-28 15119 Butte On the Feather River Highway 23 miles from Oroville. Comment
  SD147485  Collinsia tinctoria Lowell Ahart 1980-6-19 2383 Butte Along Swedes Flat Road, near Bangor 320 Comment
  UC1594549  Collinsia tinctoria Lowell Ahart 1992-5-9 6760 Butte about 2 air mi n of Oroville (on n side of the dirt road, on n side of the Thermalito Diversion Pool, Lake Oroville Recreation Area); Lake Oroville Recreation Area, Thermalito Diversion Pool 76 Comment
  UC726287  Collinsia tinctoria A. A. Heller 1938-5-28 15119 Butte on the Feather River Highway 23 mi from Oroville; Feather River Highway Comment
  SD7641  Collomia grandiflora Daniel Cleveland 1882-7-14 Butte Sutten House Comment
  CHSC58936  Collomia linearis Lowell Ahart 1992-7-21 6819 Butte In meadows, north-west of a snow lake, on the south side of Coon Hollow, about 2 (air) miles north-east of Philbrook Reservoir. 1737 Comment
  UC1594615  Collomia linearis Lowell Ahart 1992-7-21 6819 Butte about 2 (air) mi ne Philbrook Reservoir (s side of hollow nw of a snow lake, on s side of Coon Hollow); Coon Hollow 1737 Comment
  CHSC102848  Convolvulus arvensis Lowell Ahart 2009-5-30 15787 Butte About 50 yards south of the fence and about 100 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 269 Comment
  SEINET10474385  Conyza floribunda Mary Susan Taylor 1974-1 Taylor 318 Butte 61 Comment
  POM219173  Corallorhiza maculata H. F. Copeland 1928-8-14 308 Butte Jonesville. Comment
  CHSC1741  Cordylanthus pilosus subsp. hansenii M. Underhill 1952-7-11 Butte Cohasset road. 91 Comment
  JEPS66511  Cordylanthus tenuis subsp. viscidus L. R. Heckard and T. I. Chuang 1971-8-15 2768 Butte 1.5 mi w Butte Meadows (at Thatcher Ridge road junction) 1280 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
  CHSC3863  Cornus florida Gary Dutton 1966-4-13 210 Butte CSC; East side of Shasta Dining Hall along creek and foot bridge. Comment
  CHSC42728  Cornus glabrata Lowell Ahart 1987-4-30 5486 Butte On the banks of North Honcut Creek, aobut 2 1/2 miles north and 3 miles east of Honcut, about 12 miles southeast of Oroville. 67 Comment
  CHSC3865  Cornus kousa Gary Dutton 1966-4-13 211 Butte CSC; East side of Shasta Dining Hall along Chico Creek and foot bridge. Comment
  CHSC90089  Cornus nuttallii Brent E. Palmer 1991-4-4 16 Butte 1 mi south of Forest Ranch on Hwy 32. 10 ft south of roadside. 609 Comment
  SEINET12137171  Cornus nuttallii D. G. Bendix 1978-1 13 Butte 50 m NE of intersection of Dogtown Rd & Skyway, Magalia 830 Comment
  CHSC48308  Cornus sericea subsp. sericea Vernon Oswald 1987-6-23 3012 Butte Hiogh Lakes Rd. 1.4 mi (odometer) n of Philbrook Rd. 1767 Comment
  UC202363  Cornus sericea subsp. sericea H. M. Hall July 1914 Butte Butte Creek near Jonesville; Butte Creek 1554 Comment
  CHSC75492  Cornus sessilis G. F. Hrusa; T. D. Wilfred 1997-5-7 13734 Butte Sierra Nevada. Little Butte Creek above Magalia Reservoir, N of Magalia, immed. E of Holmwood Drive. [Lat./Long. on label is '39 51 N, 121 34 W']. 710 Comment
  CHSC50322  Coronilla varia Vernon Oswald 1990-6-2 4278 Butte Butte County Center along Nelson Ave, Thermalito. 79 Comment
  JEPS98304  Cortaderia selloana Lowell Ahart 2000-9-2 8678 Butte Near the margins of a small pond, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. 42 Comment
  UC1303041  Corydalis caseana subsp. caseana A. A. Heller 1928-6-20 14685 Butte Butte Meadows Comment
  CAS-BOT-BC401859  Corydalis caseana subsp. caseana H. M. Hall 1914-7-28 9796 Butte Butte Creek, northern Butte County 1500 Comment
  SEINET10838865  Corylus cornuta var. californica Mary Susan Taylor 1980-5-8 Taylor 2609 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
  JEPS120054  Cotoneaster lacteus Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17854 Butte On the south side of Big Chico Creek, east of the Deer Pen, between Tables 10 & 11, Lower Bidwell Park, Chico. Comment
  CHSC54345  Cotoneaster pannosus Lowell Ahart 1991-5-31 6658 Butte Along the Dan Beebe Trail in Lake Oroville Recreation Area, between Canyon Drive and Oroville Dam Blvd East, south-west of Oroville Dam. 213 Comment
  UC1586403  Cotoneaster pannosus Lowell Ahart 1991-6-19 6661 Butte along the Dan Beebe Trail in Lake Oroville Recreation Area, between Canyon Drive and Oroville Dam Blvd East, southwest of Orovillle Dam. 213 Comment
  CHSC106880  Cotula australis Lowell Ahart 2011-5-9 17353 Butte South side of Palm Avenue, about 2 miles (air) southeast of East Biggs. 29 Comment
  CHSC97413  Cotula australis Robert Fischer 2006-6-18 1032 Butte Chico. Within upper Bidwell Park in the City of Chico. 60 Comment
  CHSC29725  Crassula aquatica J. D. Jokerst 1980-4-21 633 Butte Top of North Table Mountain., several miles N of Cherokee Rd. 457 Comment
  JEPS117513  Crassula aquatica Lowell Ahart 2010-5-22 16720 Butte About 140 yards east of the fence, about 240 yards east of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville 392 Comment
  CHSC38404  Crassula connata Vernon Oswald 1983-3-9 139 Butte Upper Bidwell Park, Chico, on north slope 1200 ft e of the power lines and 1600 ft n of Upper Park Rd. 182 Comment
  JEPS122139  Crassula connata Lowell Ahart 2014-5-2 19425 Butte About one mile northwest of the Improved Parking Area and Cherokee Road, North Table Mountain, about 8 miles (air) north of Oroville. Comment
  SD116540  Crassula solieri Barbara Ertter, Jeff Strachan, et al. 1980-5-7 3302 Butte North Table Mountain 5.0 miles north of Oroville. 395 Comment
  SEINET7072736  Crassula solieri A. G. Vestal 1963-5-9 s.n. Butte About 11.8 miles north of Chico. UTM Zone 10, 594162mE, 4419666mN. Coordinate datum: NAD 27.) Comment
  CHSC111390  Crassula tillaea Lowell Ahart 2012-5-2 17980 Butte On the north side of the paved road, about 100 yards southeast of the entrance to Upper Bidwell Park, about 1/4 mile east of Chico. 81 Comment
  SEINET10973378  Crassula tillaea Mary Susan Taylor 1978-4-14 Taylor 1554 Butte On E side of Williams Road in Valley Grassland, ca. 1/4 mi N of Pentz Road, on Butte College Campus, ca. 15 mi S of Chico. With Marc Hayes. 30 Comment
  CHSC4340  Crataegus monogyna Carl Pejsa 1966-5-18 30 Butte Bidwell Park Forestry Station. Comment
  CHSC50817  Crepis pleurocarpa Vernon Oswald; Lowell Ahart 1990-7-19 4372 Butte Slope on the south side of Philbrook Creek, ca. 3 mi east of Philbrook Reservoir, ca. 0.7 mi west of the Plumas County line. 1950 Comment
  CHSC61043  Cressa truxillensis Vernon H. Oswald 1993-7-29 5737 Butte Gray Lodge Wildlife Management Area W of Gridley, 0.3 mi S of Rutherford Rd. on the first levee road E of the headquarters complex. 19 Comment
  CAS-BOT-BC190089  Crypsis schoenoides Lowell Ahart 1980-8-16 2584 Butte Near Honcut. 60 Comment
  CHSC72254  Crypsis schoenoides Lowell Ahart 1998-9-11 8061 Butte On the bottom of a vernal pool, about 3/4 mile northwest of the cattle chute on the west side of Cherokee Road, North Table Mountain, about 7 (air) miles north of Oroville. 396 Comment
  SEINET10518393  Crypsis vaginiflora A. Arthur Heller 1914-7-31 Heller 11632 Butte Chico-Hamilton road, 6 miles from Chico. Comment
  CHSC46451  Cryptantha affinis V. Oswald; L. Ahart 1989-6-27 3820 Butte Ridge east of Scotts John Creek, ca. 3.3 mi (air) e of Jonesville. 2042 Comment
  CHSC97409  Cryptantha affinis Robert Fischer 2006-6-17 1028 Butte Butte Meadows. Cascade Range High, off Hwy. 32 on Humboldt Road near Cherry Hill. 1493 Comment
  SD6774  Cryptantha affinis Daniel Cleveland Jul 1882 Butte Comment
  SEINET10497261  Cryptantha affinis Lowell Ahart 1983-8-16 Ahart 4292 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
  CHSC107243  Cryptantha flaccida Lowell Ahart 2011-6-5 17366 Butte On a large gravel bar, on the north side of Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 42 Comment
  UC1594707  Cryptantha flaccida Lowell Ahart 1992-5-9 6752 Butte about 2 mi w Oroville Dam (on the n side of the Thermalito Diversion Pool, near Longs Bar Monument); Lake Oroville Recreation Area 76 Comment
  CHSC35060  Cryptantha intermedia R. A. Schlising 1981-6-13 4081 Butte E part of county, along Milsap Bar Road, 2.7 miles S of its junction with Bald Rock Road near Brush Creek. 975 Comment
  CHSC39538  Cryptantha simulans Lowell Ahart 1983-5-28 4020 Butte On both sides of the trail to Feather Falls, about 5 1/4 miles north of the town of Feather Falls. 600 Comment
  UC857292  Cryptantha torreyana A. A. Heller 1915-5-28 11912 Butte near Cohasset (Sierra foothills); Sierra Comment
  SEINET10834037  Cupressus macnabiana Mary Susan Taylor 1980-2-17 Taylor 2317 Butte T23N R2E sec 17. In crevice of cliff, ca. 1/4 mi N of Mud Creek, ca. 1 mi NE of Richardson Springs Hotel. 366 Comment
  SEINET229238  Cuscuta B. Ertter, J Strachan; L. Ahart 1980-5-8 3325 Butte Peter Ahart Ranch ca 2.5 mi NE of Honcut between Marysville & Oroville 30 Comment
  JEPS120791  Cuscuta occidentalis Lowell Ahart 2013-9-26 19065 Butte Northwest of a large wash, about 1/2 mile SE of the Honcut Cemetery, about 3 1/4 air miles NE of Honcut. Comment
  CHSC100108  Cuscuta subinclusa L. P. Janeway; Shandin Rudesill 2008-8-5 9534 Butte Northern High Sierra Nevada. Plumas National Forest; upper end of Magee Ridge at a small gap between Heinz Creek and Hibbard Creek; 2.7 air km north of Coyote Gap. 1353 Comment
  UC725368  Cycladenia humilis var. humilis A. A. Heller 1938-7-20 15275 Butte ridge between Inskip and Chaparral 1524 Comment
  CHSC2139  Cynodon dactylon B. Hetherington 1949-5-1 Butte Chico. 57 Comment
  CHSC66173  Cynodon dactylon Vernon H. Oswald; Lowell Ahart 1996-5-27 7668 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. In pasture in the S paddock of Tract 7, Sanctuary II. 32 Comment
  SEINET10497509  Cynoglossum grande Mary Susan Taylor 1980-2-14 Taylor 2314 Butte T19N R6E sw 1/4 sec 8. Macabes Creek, ca. 100 ft E of Lumpkin Rd, ca. 2.5 mi N of its jct with Forbestown Rd, ca. 18 mi NE of Oroville. Shaded, cool Riparian Woodland. 457 Comment
  CHSC116743  Cynosurus echinatus Lowell Ahart 2016-5-24 20871 Butte On the west side of a large drainage, about 50 yards north of the ditch, about 150 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. 44 Comment
  CHSC38804  Cynosurus echinatus Vernon Oswald 1983-5-4 429 Butte Upper Bidwell Park, Chico, beside the trail on the n side of Chico Creek 400 ft w of the power lines. 91 Comment
  CHSC2108  Cyperus difformis D. Bower 1953-7-23 Butte 3A Llano Seco. 30 Comment
  CHSC84024  Cyperus difformis Lowell Ahart 2003-6-23 10314 Butte In a rice field, Peter Ahart Ranch, about 300 yards east of the Palermo Honcut Highway, about 2 1/8 miles north of Honcut, about 12 miles south of Oroville. 30 Comment
  CAS-BOT-BC114737  Cyperus difformis Lowell Ahart 1981-9-19 3187 Butte Cresta Power House 167 Comment
  UCD141012  Cyperus difformis C. A. Janeway 1986-10-25 s.n. Butte city of Chico; Bidwell Park, in Big Chico Creek at Five-Mile Recreation Area. 79 Comment
  CAS-BOT-BC114601  Cyperus eragrostis Ira L. Wiggins 1928-9-9 s.n. Butte Sandy Gulch Creek, 3 miles west of Chico. Comment
  CAS-BOT-BC114607  Cyperus eragrostis Lowell Ahart 1974-11-9 s.n. Butte Edge of rice field, Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31953  Cyperus eragrostis J. D. Jokerst; M. S. Taylor, R. A. Schlising 1980-5-18 721 Butte Somewhat below the top of Cohassett Ridge on slope above (North) of Mud Cr. 243 Comment
  CHSC45261  Cyperus eragrostis L. P. Janeway 1986-9-20 1877 Butte At edge of gravel bar along east side of Sacramento River, just SE of the Ord Ferry Rd bridge. 28 Comment
  CHSC55608  Cyperus eragrostis L. P. Janeway 1986-9-20 1869 Butte Side creek on northwest side of Little Chico Creek; near River Road ca 2 mi south of Chico River Road. 36 Comment
  JEPS116031  Cyperus eragrostis Lowell Ahart 2009-6-30 15968 Butte On the east side of Ten Mile House Road, about 30 yards east of Big Chico Creek, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 234 Comment
  UCD141068  Cyperus eragrostis L. P. Janeway 1987-5-20 2087 Butte seep along Highway 70, 0.3 mile north of Arch Rock Tunnel. N fork Feather River. Granitics. 472 Comment
  CHSC83084  Cyperus erythrorhizos Lowell Ahart 2002-10-17 9997 Butte Bottom of a wash, between the gentle hills below the high water line of Lake Oroville, about 1 1/2 miles south of Highway 162 (Oroville Quincy Highway), about 3 miles (air) northeast of Oroville Dam. 227 Comment
  CAS-BOT-BC114376  Cyperus erythrorhizos Lloyd 1940-6-21 7 Butte Grey Lodge Refuge, 9 mi N of Gridley Comment
  CHSC43786  Cyperus esculentus Vernon Oswald 1987-7-23 3145 a Butte Portion of Rancho Bosquejo. Feenstra's Riverview Orchard located at the w end of Cana Rd. between the s half of Cana Lake (Dicus Slough) and the Sacramento River. 48 Comment
  CHSC43787  Cyperus esculentus Vernon Oswald 1982-7-19 Butte Upper Bidwell Park, Chico, just downstream from the diversion dam on Lindo Channel. 79 Comment
  CDA42942  Cyperus flavescens L. Ahart 2012-10-2 18503 Butte Soil and gravel bar on the south side of Big Chico Creek, about 100 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CHSC78398  Cyperus fuscus Lowell Ahart 2000-7-23 8603 Butte Near a large pond on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CHSC31451  Cyperus niger L. Ahart 1980-7-29 2511 Butte In the gutter along Lower Forbestown Rd or Ponderosa Way, ca. 1/4 mi n of the jct of Forbestown Rd and Robinson Mill Rd, w of Forbestown. 750 Comment
  CHSC37082  Cyperus odoratus L. Ahart 1982-10-11 3854 Butte On bottom of deep ditch, w of check-in station, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CHSC31694  Cyperus rotundus E. Bevan; L. Bevan 1974-11-24 Butte In garden of Ernes and Lorene Bevan, near Honcut. 33 Comment
  CHSC45150  Cyperus squarrosus Lowell Ahart 1972-5-24 112 Butte On the bottom of a small wash, Peter Ahart Ranch, about 1 1/2 miles north and 1 1/4 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  UCD141100  Cyperus squarrosus E. B. Copeland 1931-7-17 612 Butte Jonesville. 1700 Comment
  UCD141102  Cyperus squarrosus A. A. Heller 1917-7-28 12840 Butte Butte Meadows. 1280 Comment
  CAS-BOT-BC114209  Cyperus strigosus John Thomas Howell 1961-9-22 36708 Butte Bank of Feather River. Oroville. Comment
  CHSC31629  Cyperus strigosus L. Ahart 1969-9-9 32 Butte Edges of North Honcut Creek. Peter Ahart Ranch, Honcut. 45 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
  JEPS122021  Cyperus strigosus Lowell Ahart 2014-6-13 19534 Butte Doug Upton property, about 100 yards west of Lone Tree Road, about 2 miles (air) southwest of Palermo. Comment
  UC1100633  Cyperus strigosus Verne Grant and Herbert L. Mason 1946-9-27 13140 Butte 3 mi. w. Biggs Comment
  CAS-BOT-BC110841  Cyperus vegetus A. A. Heller 1939-8-26 15479 Butte River Road west of Chico, Lower Sonoran Life Zone Comment
  CAS-BOT-BC133764  Cypripedium fasciculatum Lowell Ahart 1982-9-13 3809 Butte Field redacted by CAS, contact the data manager for more information 1100 Comment
  UC399283  Cystopteris fragilis Mrs. Carlotta C. Hall 1912-5-27 Butte canyon near Richardson's Spring Chico Comment
  CHSC102835  Dactylis glomerata Lowell Ahart 2009-6-19 15916 Butte Upper Bidwell Park, on the north side of Ten Mile House Road, about 100 yards west of the intrsection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 461 Comment
  UC142471  Damasonium californicum Mrs. R. M. Austin May 1896 20 Butte Sacramento R. Comment
  JEPS124151  Datura stramonium var. stramonium Lowell Ahart 2015-11-7 20621 Butte About 1/4 mile south of the end of Alternate 40, Dark Canyon, about 4 miles (air) south of Highway 70, about 8 miles (air) southeast of Paradise. Comment
  CHSC45735  Datura wrightii Elizabeth L. Knight 1988-4-15 7 Butte At Parrott Landing ca. 50 ft e of Sacramento River ca. 11 m sw of Chico. River bank. 30 Comment
  JEPS108547  Delphinium gracilentum L. P. Janeway 1994-5-13 4646 Butte Northern High Sierra Nevada. 0.7 mi north of Nelsons Crossing (Fall River) and 1.0 mi west of Kenebeck Ridge 1127 Comment
  CAS-BOT-BC8573  Delphinium hansenii A. A. Heller 1938-5-28 15110 Butte 2.5 miles E of Oroville on Highway 24 Comment
  CHSC117345  Delphinium hansenii subsp. hansenii B. Castro; Sabrina Bell, Robin Carter 2015-5-26 2047 Butte Sacramento Valley. Ca 2 air mi NE of Oroville and 1.5 mi W of Oroville Dam, off S edge of Thermalito Diversion Pool. Ca 0.1 mi S of the Brad Freeman Trail along a connector to the Dan Beebe trail as it winds around an inlet (long narrow pond). About 3 ft up from E side of Trail on W-facing slope in small opening withing Foothill Woodland. 80 Comment
  CHSC40060  Delphinium nudicaule C. C. Bruce 1899-4-1 185 Butte Grain fields. Comment
  CHSC90183  Delphinium nudicaule Ken Larsen 1989-4-15 19 Butte Near Salmon Hole, Upper Bidwell Park, Chico; about 5 km east of Chico Municipal Golf Course. 250 Comment
  CHSC56770  Delphinium nuttallianum R. A. Schlising; R. Banchero, J. Fuller 1981-6-28 4117 Butte E of Stirling City, W of Little Kimshew Creek on top of Table Mountain. 1828 Comment
  UC1564784  Delphinium nuttallianum V. Oswald and L. Ahart 1989-6-27 3819 Butte ridge e Scotts John Creek (ca 3.3 (air) mi e of Jonesville) 2042 Comment
  UC426909  Delphinium nuttallianum E. B. Copeland 1930-6-25 416 Butte Jonesville 1550 Comment
  UC600481  Delphinium nuttallianum H. F. Copeland 1929-6-12 1211 Butte near north Willow Creek; Jonesville 1524 Comment
  CHSC56772  Delphinium patens M. S. Taylor 1981-5-5 3608 Butte W side of spur rd, ca. 1.5 mi nw of its jct with Bryant Ravine Rd (21N35Y), ca. 1 mi n of Feather Falls. 792 Comment
  CAS-BOT-BC121624  Delphinium patens subsp. patens Helen M. Edwards 1916-6-1 s.n. Butte De Salba Comment
  UCD96667  Delphinium variegatum A. A. Heller 1918-4-19 12987 Butte 12 miles north of Chico. Comment
  CHSC65507  Delphinium variegatum subsp. variegatum Ron P. Garcia 1995-4-11 18 Butte Ca. 100 ft s of Rabe Rd, ca. 0.4 mi e of Larkin Rd, ca. 4 mi sw of Oroville. Fernandez Land Grant. 47 Comment
  CAS-BOT-BC16980  Delphinium variegatum subsp. variegatum A. A. Heller 1914-3-18 11205 Butte Low hills 8 miles north of Oroville below the Quercus Douglasii belt. Comment
  CAS-BOT-BC17025  Delphinium variegatum subsp. variegatum A. A. Heller 1914-3-18 11205 Butte Hills 8 miles north of Oroville Comment
  CAS-BOT-BC82881  Dendromecon rigida Benton Howard; C. R. Quick 1948-5-25 48 -01 Butte Along logging road, about half way between Stirling City and West Branch (of Feather River) bridge. Comment
  SEINET12091622  Dendromecon rigida Unknown 1981-1 12 Butte ca 200 m W of Butte Creek and 1.2 km N of Magalia Reservoir, 2.5 km N. of Magalia 735 Comment
  CAS-BOT-BC194310  Deschampsia cespitosa subsp. cespitosa E. B. Copeland 1931-7-15 605 Butte Jonesville, border of the Lily Pond, a permanent pool. 1750 Comment
  CAS-BOT-BC192653  Deschampsia danthonioides Lowell Ahart 1988-5-30 6024 Butte Near the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  CAS-BOT-BC192662  Deschampsia danthonioides A. A. Heller 1914-4-17 11301 Butte Hills 8 miles north of Oroville Comment
  CAS-BOT-BC201741  Deschampsia elongata Lowell Ahart 1987-7-8 5792 Butte Along Big Bar Mountain Road, about 3 miles south-west of Coyote Gap, south-east of Pulga 1280 Comment
  CAS-BOT-BC201747  Deschampsia elongata A. A. Heller 1917-7-26 12846 Butte Butte Meadows 1402 Comment
  CHSC104840  Deschampsia elongata Lowell Ahart 2010-6-12 16799 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
  CHSC112523  Deschampsia elongata B. Castro 2012-10-18 1990 Butte Sacramento Valley. At N end of Chico, just S of the Chico Airport, along Sycamore Creek, ca 900 ft downstream (W) of its crossing under the Cohasset Hwy bridge. 54 Comment
  SD8288  Dicentra formosa Daniel Cleveland 1882-7-14 Butte Sutton House Comment
  CHSC19653  Dicentra formosa subsp. oregana K. R. Stern 1966-4-1 Butte Chico. Comment
  CHSC19658  Dicentra spectabilis K. R. Stern 1965-7-23 2195 Butte Chico. Comment
  CAS-BOT-BC500058  Dichelostemma capitatum Grace Kermode 1899-5-31 s.n. Butte Chico Comment
  RSA333574  Dichelostemma capitatum subsp. capitatum Craig Martz, Richard F. Sannar 1982-3-16 23 Butte Along Cherokee Road, 0.5 mile N of intersection with Oregon Gulch Road, near South Table Mountain, N of Oroville. 450 Comment
  CHSC38768  Dichelostemma multiflorum Vernon Oswald 1983-5-18 346 Butte Upper Bidwell Park, Chico, on the north slope slightly e of Horseshoe Lake. 146 Comment
  UC203548  Dichelostemma multiflorum A. A. Heller 1914-5-19 11421 Butte 8 mi n Oroville (near Table Mountain) Comment
  SEINET3885608  Dichelostemma multiflorum R. A. Vanbianchi 1974-4-20 215 Butte 300 yards south of the intersection of Pentz and Clark Rds.; 0 Comment
  CHSC2100  Dichelostemma volubile R. M. Staley 1952-6-28 Butte W. Branch Feather River. Comment
  CHSC24870  Dichelostemma volubile T. L. Reynolds 1976-4-25 65 Butte Ca. 200 yds s of Butte Creek and ca. 400 yds sw of Covered Bridge, 6.9 mi ese of Chico. 121 Comment
  CHSC59366  Dichelostemma volubile J. L. Guardino 1992-4-18 16 Butte Southern rim of Chico Creek Canyon, 1.7 mi e of Oak Hollow Ln. 268 Comment
  CHSC41980  Digitaria sanguinalis Lowell Ahart 1986-11-14 5464 Butte On the bottom of a pond, about 1/10 mile south of the clay burrow for Oroville Dam, 1/4 mile east of Larkin Road, about 6 miles south-west of Oroville. 36 Comment
  SEINET8205896  Diplacus angustatus A. A. Heller 1915-4-12 11806 Butte plentiful near Cohasset; in open places in the chaparrel, which here is mainly Quercus Oerstediana; near upepr limt of digger pine in the Sierra foothills. Comment
  CAS-BOT-BC151925  Diplacus douglasii A. A. Heller 1938-3-13 15000 Butte Ten Mile House east of Chico 304 Comment
  CHSC110047  Diplacus grandiflorus Lowell Ahart 2012-6-2 18128 Butte Along the sides of Truex Road, west of the intersection of Truex Road and Trevor Road, about 1/8 mile northwest of the West Branch Bridge across Lake Oroville. 286 Comment
  CHSC51080  Diplacus jepsonii Pauleen Broyles 1987-7-5 1075 .5 Butte Ca 7 km n of Inskip. 1500 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
  CHSC11892  Diplacus torreyi E. B. Copeland 1929-7-18 462 Butte Jonesville. 1550 Comment
  CHSC28699  Diplacus torreyi M. S. Taylor 1978-7-21 1813 Butte On s side of Oroville-Quincy Hwy along creek in meadow, ca. 14 mi n of Lake Madrone. 1463 Comment
  CAS-BOT-BC154028  Diplacus torreyi Lowell Ahart 1984-7-19 4725 Butte Along logging roads above the dirt road that is about 1 1/2 miles south-east of Bald Mountain, 3/4 mile west of Oak Point, about 4 miles north-east of Stirling City 1500 Comment
  SEINET8399956  Diplacus torreyi E. B. Copeland 1929-7-18 462 Butte Jonesville. 1550 Comment
  CAS-BOT-BC154173  Diplacus tricolor A. A. Heller; H. E. Brown 1902-5-15 5554 Butte Near Biggs Comment
  CHSC59367  Disporum hookeri L. P. Janeway; B. Castro 1992-4-21 4154 Butte About 200 ft north of Ram Creek and ca 1 mi east of French Creek. 670 Comment
  CHSC10822  Dodecatheon clevelandii subsp. patulum Lowell Ahart 1968-3-11 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC31856  Dodecatheon clevelandii subsp. patulum L. Ahart 1974-2-15 302 Butte Peter Ahart Ranch, Honcut. 42 Comment
  CHSC3548  Dodecatheon clevelandii subsp. patulum Gary Dutton 1966-2-21 27 Butte Found N.W. of 99E on Neal Rd. about 1/2 mile. Comment
  UC640447  Dodecatheon clevelandii subsp. patulum Elmer I. Applegate 1927-3-4 5000 Butte about ten mi n Chico; n of Chico Comment
  CHSC19929  Dodecatheon clevelandii var. patulum M. S. Taylor 1975-3-3 392 Butte Abundant in a field on e side of Cohasset Rd, ca. 3 mi n of Chico. 60 Comment
  CHSC114964  Dodecatheon hendersonii Lowell Ahart 2015-3-14 19947 Butte On the south side of the poor old dirt road, Beatson Hollow, about 3/5 of a mile northwest of Cherokee Road, about 7 miles (air) north of Oroville. 309 Comment
  CHSC20167  Dodecatheon hendersonii D. B. Dewey 1975-2-28 10 Butte Ca. 400 yds e of Little Butte Creek, ca. 2 mi upstream from intersection with Butte Creek. 182 Comment
  SEINET194858 Image available Dodecatheon hendersonii A. A. Heller 1938-4-3 15011 Butte Table Mountain, near Cherokee. Comment
  UCD118965  Dodecatheon hendersonii M. Vincent 1964-4-9 542 Butte Honey Run Rd. 2 miles west of Skyway. Comment
  RSA758601  Dopatrium junceum Peter Fritsch, Boni Cruz 2005-8-9 1787 Butte Biggs Rice Experiment Station, about 3.5 miles northwest of Biggs. 41 Comment
  CDA42330  Downingia cuspidata Vernon H. Oswald & Lowell Ahart 1998-6-11 9225 Butte Butte Valley National Grassland near the junction of Meiss Lake-Sams Neck Rd. and Hwy. 97 ca. 5 mi. north of Macdoel. Comment
  CHSC112902  Downingia ornatissima B. Castro; Robin Carter 2011-4-29 1878 Butte Sacramento Valley. Between Hwy 99 and the Thermalito Afterbay levee, ca 0.6 mi S of jcn of Hwys 99 and 162W, ca 0.4 mi N of Hamilton Rd. 34 Comment
  CHSC35018  Draba verna var. verna R. E. Preston 1982-3-20 195 Butte Ca. 50 ft n of Humboldt Rd, ca. 3.3 mi e of downtown Chico. 106 Comment
  CHSC113503  Draperia systyla Lowell Ahart 2014-7-16 19671 Butte About 50 yards east of the Skyway, about one-mile north of Stirling City. 1142 Comment
  UC1124234  Draperia systyla J. E. Sowder, A. E. Wieslander 1933-6-24 90 Butte 0.5 mi E of Inskip; Chico Quad. 1432 Comment
  RSA31686  Draperia systyla A. A. Heller 1938-5-28 15128 Butte Feather River Highway near Pulga. 726 Comment
  CHSC36294  Drosera rotundifolia M. S. Taylor 1982-8-16 5004 Butte N side of spur road off 52513, 1 mi s of Jones Mea ... Field redacted by CHSC, contact the data manager for more information 1798 Comment
  CAS-BOT-BC159642  Drymocallis glandulosa var. glandulosa John Thomas Howell 1962-6-15 37505 Butte Magalia 731 Comment
  CHSC27945  Dryopteris arguta M. S. Taylor 1979-3-20 1949 Butte Ca. 1 mile n of jct of north fork Feather River and Hwy 70 along an old road, ca. 10 mi n of Oroville. 304 Comment
  CHSC3410  Dryopteris arguta Alice L. Stoll 1966-3-7 49 Butte Honey Run Grade near Paradise. Comment
  JEPS119500  Duchesnea indica var. indica Lowell Ahart, John Dittes, Josephine Guardino 2012-4-6 17819 Butte On the north side of Big Chico Creek, Lost Park in Bidwell Park, City of Chico. Comment
  JEPS120596  Dysphania ambrosioides Lowell Ahart 2013-11-17 19266 Butte McCabe Creek, below the high water line of Lake Oroville, about 5/8 mile southwest of the enterprise Bridge across Lake Oroville. Comment
  CHSC34191  Echinochloa colona L. Ahart 1981-9-19 3178 Butte Along edge of road just a few ft north of the Arch Rock Tunnel, on Hwy 70, ca. 10 mi s of Storrie. 550 Comment
  CHSC99647  Echinochloa colona H. Koeth 2007-5-5 Butte End of Santa Clara Ave. off Rose Ave., Chico. UTM 10 609663E 4406233N. 57 Comment
  SEINET231760 Image available Echinochloa crus-galli L. Arhart 1984-9-17 4792 B Butte Peter Arhart Ranch ca. 2.3 mi N and 0.3 mi E of Honcut ca. 12 mi S of Oroville 50 Comment
  UCD60909  Echinochloa crus-galli L. Ahart 1984-9-17 4792 Butte Peter Ahart Ranch, ca. 2.3 mi N and 0.3 mi E of Honcut, ca. 12 mi S of Oroville. 50 Comment
  UCD60928  Echinochloa crus-galli Leonard 1921-6-16 X- 3094 Butte Chico. Comment
  SEINET10934938  Echinochloa crus-galli Lowell Ahart 1990-9-30 Ahart 6604 Butte Along the edges of Canyon Creek, below the high water line of Lake Oroville, below the Canyon Creek Bridge across Lake Oroville. Foothill Woodland (destroyed). T20N R5E SE/S17. 229 Comment
  UCR136870  Echinochloa oryzicola var. mutica Beecher Crampton 1957-9-17 4626 Butte Sacramento Valley, 5 miles northwest of Biggs, Biggs Rice Experiment Station [955 Butte City Hwy, Hwy 162, 2.5 mi. west of Hwy 99] 30 Comment
  CHSC108133  Eclipta prostrata Lowell Ahart 2011-10-29 17718 Butte On the bare sides of a ditch, on the south side of Biggs Princeton Road, about 500 yards west of Riceton Highway, about 1 mile northwest of Biggs. 27 Comment
  CHSC31436  Eclipta prostrata L. Ahart 1980-9-28 2660 Butte Peter Ahart Ranch, ca. 2 mi n and 0.5 mi e of Honcut. 50 Comment
  CHSC113219  Elatine Lowell Ahart 2014-4-26 19411 Butte Sides of a cleaned ditch, on the south side of Butte City Highway (Highway 162), collected from the railroad to the east about 200 yards, east of the Rice Experimental Station. 30 Comment
  CHSC115402  Elatine Lowell Ahart 2015-3-26 19964 Butte 50 yards north of Parking Lot 3, about one mile north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. 19 Comment
  JEPS127222  Elatine Lowell Ahart 2016-8-5 21259 Butte Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles (air) south of Oroville. Comment
  CHSC45130  Eleocharis acicularis Vernon Oswald 1987-8-10 3199 Butte Lily Pond' located ca. 0.6 mi (air) w of Butte Creek House and 0.25 mi s of Humbug Rd., ca. 2.75 mi e of Jonesville. 1813 Comment
  JEPS122218  Eleocharis acicularis Lowell Ahart 2014-4-16 19366 Butte On the sides but near the bottom of a large canal, about 100 yards north of East Gridley Road, on the west side of the Feather River, about 2 miles east of Gridley. Comment
  RSA4221  Eleocharis acicularis var. acicularis E. B. Copeland 1929-7-19 344 Butte Jonesville. 1550 Comment
  UCD49581  Eleocharis atropurpurea J. M. Tucker 1953-8-28 2681 Butte In rice plots; Biggs Rice Experiment Station, Butte County, California. Comment
  CHSC78298  Eleocharis bolanderi Lowell Ahart 2000-6-29 8541 Butte Flea Meadow, about 1/2 mile west of Flea Mountain, about 3 1/2 miles (air) north of Concow Reservoir, about 5 miles (air) east of Magalia. 1036 Comment
  JEPS105633  Eleocharis bolanderi L. P. Janeway 2003-6-8 7817 Butte High Cascade Range. Flea Valley: meadow at head of Concow Creek 1116 Comment
  CHSC83294  Eleocharis decumbens L. P. Janeway; B. Castro 2002-7-7 7608 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
  JEPS119885  Eleocharis engelmannii var. engelmannii Lowell Ahart 2012-6-5 18162 Butte On the bottom of Beatson Hollow, about 1 1/4 miles northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 6 miles (air) north of Oroville. Comment
  CHSC2111  Eleocharis macrostachya D. Bower 1953-7-23 Butte 3A Llano Seco. 30 Comment
  CHSC68435  Eleocharis macrostachya L. P. Janeway 1987-5-7 2017 Butte Bottom of Dead Horse Slough draining the California Park lake, just west of California Road and about 300 ft north of Hwy 32. 74 Comment
  CHSC78924  Eleocharis macrostachya Lowell Ahart 2000-10-2 8702 Butte On the east side of the Sacramento River, northeast 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
  JEPS127225  Eleocharis macrostachya Lowell Ahart 2016-5-30 20893 Butte Peter Ahart Ranch, about 2 1/2 miles north and 1/2 mile east of Honcut, about 12 miles (air) south of Oroville. Comment
  JEPS98566  Eleocharis macrostachya Lowell Ahart 2000-5-21 8376 Butte 10 mi NW of Oroville (slickens from the Cherokee mine, E side of Clark Road (Hwy 191), 200 yds S of Dry Creek) 60 Comment
  CAS-BOT-BC112787  Eleocharis macrostachya John Thomas Howell 1962-6-16 37629 Butte Concow School N of Yauko Hill. 533 Comment
  SEINET13711130  Eleocharis macrostachya Lowell William Ahart, Lowell William Ahart 2000-1 8702 Butte E Side of Sacramento River, NW of Parrott Landing, 12 Air Mi. SW Chico Comment
  JEPS98378  Eleocharis parishii Lowell Ahart 2000-10-2 8701 Butte 2 mi SE of Ordbend (W side 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
  POM144780  Eleocharis parishii E. B. Copeland 1903-5-30 3280 Butte Chico. Comment
  CHSC30504  Eleocharis quinqueflora J. D. Jokerst; R. A. Schlising, M. S. Taylor 1980-4-7 550 Butte 1.0 mi E of Palermo-Honcut Hwy, 50 m S of Melody Lane. 48 Comment
  HSC96912  Eleocharis quinqueflora L. Ahart 2000-7-5 8553 Butte W of the cow chute and parking lot on W side of Cherokee Rd., N Table Mtn., 7 mi. N of Oroville 404 Comment
  CDA38982  Eleocharis radicans L. Ahart 2000-9-2 8680 -A Butte About 4 miles (air) southwest of Oroville; about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area. Comment
  CHSC28573  Elodea canadensis M. S. Taylor; J. D. Jokerst 1979-11-11 2278 Butte Irrigation ditch, at jct with Goodspeed Watt Rd, ca. 6 mi s of Chico. 33 Comment
  CHSC31719  Elymus glaucus L. Ahart 1977-6-16 1420 Butte On banks of North Honcut Creek, Peter Ahart Ranch, Honcut. 50 Comment
  UCD61904  Elymus glaucus A. A. Beetle 1941-6-27 2742 Butte 20 miles northeast of Chico. Comment
  CAS-BOT-BC203418  Elymus glaucus subsp. glaucus Lowell Ahart 1988-5-30 6015 Butte Near the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 274 Comment
  CAS-BOT-BC203429  Elymus glaucus subsp. glaucus John Thomas Howell 1962-6-15 37488 Butte Magalia 731 Comment
  JEPS94308  Elymus glaucus subsp. glaucus Lowell Ahart 1997-8-1 7783 Butte about 8 air mi ne of Stirling City (near some small streamlets of Little Kimshew Creek, in Snow Meadow, about 1/4 mi e of Table Mountain); Snow Meadow 1524 Comment
  CHSC82474  Elymus stebbinsii subsp. septentrionalis Lowell Ahart; John Dittes, Josephine Guardino 2002-6-21 9738 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
  CHSC85741  Elymus trachycaulus subsp. subsecundus G. F. Hrusa; T. D. Wilfred 1996-7-9 13162 Butte Sierra Nevada-Plumas National Forest. Bank on USFS N60 approx. immed. E of bridge over Marble Creek. [Lat./Long. on label is '39 degrees 46' N; 121 degrees 17' W']. 1150 Comment
  CHSC64201  Epilobium brachycarpum S. C. Morey 1983-7-23 589 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  UC203661  Epilobium brachycarpum A. A. Heller 1914-8-20 11689 Butte along creek about 5 mi s Pentz; Dry Creek Comment
  CHSC12078  Epilobium canum subsp. latifolium R. N. Bowman 1971-6-11 57 Butte Found on cliffs overlooking Big Chico Creek, Fern Banks, Bidwell Park, Chico. 64 Comment
  CHSC113127  Epilobium ciliatum subsp. ciliatum Lowell Ahart 2013-11-17 19265 A Butte Along the sides of McCabe Creek, below the high water line of Lake Oroville, about 5/8 of a mile southwest of the Enterprise Bridge across Lake Oroville. 245 Comment
  CHSC38569  Epilobium ciliatum subsp. ciliatum Vernon Oswald 1983-6-29 797 Butte Upper Bidwell Park, Chico, on the n side of Upper Park Rd. near Parking Area L (Diversion Dam). 134 Comment
  RSA755339  Epilobium ciliatum subsp. ciliatum L. Ahart 2009-7-9 16003 Butte On the east side of the dirt road that is Ten Mile House Road, Upper Bidwell Park, about 3/4 air miles west of Highway 32, about 10 miles northeast of Chico. 236 Comment
  POM173678  Epilobium ciliatum subsp. ciliatum H. F. Copeland 1923-6-4 920 Butte Nelson. Comment
  CHSC58931  Epilobium ciliatum subsp. glandulosum Lowell Ahart 1992-7-26 6853 Butte In a meadow along 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. 1798 Comment
  UCD77626  Epilobium cleistogamum Robert E. Preston 2004-5-25 2247 Butte Ca. 5 mile N of Oroville, at E side of substation. 53 Comment
  CHSC50411  Epilobium hornemannii subsp. hornemannii Vernon Oswald 1990-6-14 4295 Butte Logging road (T-Line) crossing High Rock Ravine, 0.1 mile west of its junction with Retson Rd (10-T), ca. 1.0 mile north-northwest of Bald Mtn Lookout. 1731 Comment
  CHSC115283  Epilobium minutum Lowell Ahart 2015-4-30 20120 Butte About 1/4 mile south of Forbestown Reservior Road, about 2 1/2 miles (air) northeast of Forbestown. 890 Comment
  CHSC48632  Epilobium minutum Vernon Oswald 1987-6-2 2943 Butte Butte-Yuba County line about 3 mi ne of Forbestown, on the se side of Forbestown Reservoir Rd. 883 Comment
  CHSC11780  Epilobium obcordatum E. B. Copeland 1931-7-13 664 Butte Jonesville. At 'the Summit. 2000 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
  CHSC46148  Epilobium torreyi Lowell Ahart 1974-6-5 476 Butte In a wash, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 39 Comment
  UCD106907  Epilobium torreyi H. A. Hannesson; R. N. Raynor 1941-5-9 s.n. Butte 4 miles S of Oroville. Comment
  CAS-BOT-BC57855  Equisetum hyemale subsp. affine E. B. Copeland 1929-7-6 330 Butte Jonesville. Comment
  RSA0118769  Equisetum laevigatum Lowell A. Ahart 2013-4-20 18551 Butte In Wilson Creek, about 100 yards southwest of the oak trees, about 0.5 mile north of the barn, about 3/4 mile north of the Honcut Cemetary, about 3.75 miles (air) northeast of Honcot. 50 Comment
  CHSC24939  Equisetum telmateia subsp. braunii W. A. Vaccaro 1976-4-17 2 Butte Population ca. 2.5 mi e of Centerville, 200 yds s of Humbug Road. 128 Comment
  SEINET4568215  Eragrostis chloromelas R. McKee 1910-9-7 15370 Butte Chico Comment
  CHSC41982  Eragrostis mexicana subsp. virescens Lowell Ahart 1986-11-7 5427 Butte In a prune orchard, east of the Feather River, north of the Oroville Gridley Highway, about 3 miles east of Gridley. 28 Comment
  CHSC113098  Eragrostis pectinacea var. miserrima Lowell Ahart 2013-10-12 19107 Butte On the east side of Palermo Honcut Highway, about 20 yards south of Palermo Road, Palermo. 51 Comment
  CHSC42142  Eragrostis pectinacea var. pectinacea Lowell Ahart 1984-11-24 4811 Butte Along the edge of Middle Honcut, Road, about 3/4 mile east of Highway 70, about 12 miles south of Oroville. 32 Comment
  CHSC97418  Eragrostis pectinacea var. pectinacea Robert Fischer 2006-6-18 1022 Butte Chico. Within upper Bidwell Park in the City of Chico. 60 Comment
  CHSC97286  Eragrostis pilosa var. pilosa Lowell Ahart 2007-8-19 14491 Butte About 2 1/4 miles (air) southeast of Honcut, about 13 miles (air) southeast of Oroville. 49 Comment
  JEPS120165  Eragrostis pilosa var. pilosa Lowell Ahart 2012-8-22 18421 Butte South edge of parking area at the restroom, end of road to the Larkin Road Boat Lunch Area, about 1/4 mile west of Larking Road, about 2 miles (air) southwest of the Oroville Airport. Comment
  CAS-BOT-BC174105  Eremogone aculeata Anna Head 1921-7-20 s.n. Butte Trail above Round Lake, Feather River region Comment
  CAS-BOT-BC174106  Eremogone aculeata Anna Head 1920-7-21 s.n. Butte Summit of Mt. Elwell, Feather River Region Comment
  CHSC48247  Eremogone cliftonii Vernon Oswald 1985-4-21 1713 Butte Between the WPRR and North Branch of the Feather River sw of Mayaro. 457 Comment
  CHSC59504  Ericameria arborescens Lowell Ahart 1992-9-20 6924 Butte At the end of the Enterprise Boat Launch Ramp, about 3/4 mile south of Rocky Point. 259 Comment
  CAS-BOT-BC298292  Ericameria nauseosa var. speciosa H. E. Brown 1896-11-15 46 Butte Near Clear Creek 53 Comment
  CDA43083  Erigeron canadensis L. P. Janeway 2011-10-2 10782 Butte Sacramento Valley.; South end of Chico; along west side of Hwy 99 0.6 km south of Skyway/East Park Ave and 0.3 km south of Comanche Creek. Comment
  CHSC108596  Erigeron canadensis L. P. Janeway 2011-10-20 10782 Butte Sacramento Valley. South end of Chico; along west side of Hwy 99 0.6 km south of Skyway/East Park Ave and 0.3 km south of Comanche Creek. 66 Comment
  SFV3878  Erigeron divergens M. L. Vincent 1962-4-20 217 Butte Sierra Nevada Feather River Canyon Road, 7 miles northeast of Oroville. Roadside on a rocky bank. Comment
  CAS-BOT-BC300618  Erigeron foliosus var. hartwegii Lowell Ahart 1980-5-12 2252 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC300689  Erigeron glacialis var. glacialis E. B. Copeland 1930-7-12 s.n. Butte Above Jonesville 1800 Comment
  LA203585  Erigeron inornatus E. B. Copeland; 1930-8-6 490 Butte Jonesville 1550.0 Comment
  CHSC33714  Erigeron inornatus var. inornatus J. D. Jokerst; R. A. Schlising, B. Banchero 1981-6-13 1338 Butte Road to Milsap Bar on the Middle Fork of the Feather River 1.7 mi below it's junction with the road to Big Bald Rock. Alongside road. Comment
  POM33313  Erigeron inornatus var. inornatus C. C. Bruce 1897-05 1990 Butte Little Chico. Comment
  SEINET8667576 Image available Erigeron inornatus var. viscidulus K. Conger 1907-1 s.n. Butte Brush Creek Comment
  CHSC39558  Erigeron petrophilus var. sierrensis Lowell Ahart 1983-7-24 4206 Butte At the Forbestown Res., about 5 miles north-east of Forbestown. 450 Comment
  JEPS95007  Erigeron petrophilus var. sierrensis Lowell Ahart 1997-9-6 7889 Butte about 2 air mi ne of Concow Reservoir (near the McNab Cypress Grove, near the steel power line, along sides of logging road, about 1/4 mi w of Rim Road) 731 Comment
  CHSC102986  Erigeron philadelphicus Lowell Ahart 2009-6-3 15824 Butte Drainage below dam, 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
  CHSC3515  Erigeron philadelphicus John Francis 1966-4-6 105 Butte 1.5 miles E. of covered bridge (Honey Run). Beside road. Comment
  CHSC88082  Erigeron philadelphicus R. D. Fischer 2004-4-9 167 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located on e. side of Big Chico Creek at Diversion Dam. 121 Comment
  POM33315  Erigeron philadelphicus C. C. Bruce 1897-04 2075 Butte Near Deadwood Comment
  CHSC20971  Erigeron sumatrensis M. S. Taylor 1975-9-8 903 Butte Along Big Chico Creek, California State University, Chico, campus. 60 Comment
  SBBG119820  Eriochloa acuminata L. Ahart 2004-9-14 11400 Butte E side of Palermo Honcut Hwy, ca. 20 ft S of Palermo Rd, E part of Palermo 57 Comment
  CAS-BOT-BC216053  Eriodictyon californicum John Thomas Howell 1962-6-15 37450 Butte Magalia, Sierra Nevada 731 Comment
  CHSC680  Eriodictyon californicum M. Roberson 1956-5-14 Butte SW of Paradise along Skyway 426 Comment
  RSA401485B  Eriodictyon californicum M. Vincent 1962-4-19 213 Butte Humbug Road, 3 miles northeast of Centerville Comment
  CAS-BOT-BC259401  Eriogonum luteolum A. A. Heller 1913-9-16 11142 Butte Hills near Big Chico Creek, east of Chico Comment
  CHSC45366  Eriogonum luteolum var. luteolum Vernon Oswald 1987-7-6 3097 Butte Butte Creek Reserve on the n side of Butte Creek, ca. 0.25 mi e of the Hwy 99 bridge. 67 Comment
  CAS-BOT-BC269851  Eriogonum nudum var. pubiflorum Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  CHSC50416  Eriogonum nudum var. pubiflorum Vernon Oswald; Lowell Ahart 1990-6-27 4337 Butte Jordan Creek-Marble Creek Rd (23N60) between Spoon Ravine and Marble Creek, east side of Oro-Quincy Hwy, ca. 0.5 mi (air) northeast of Junction House (site). On an open roadcut. 1109 Comment
  UC600500  Eriogonum spergulinum var. reddingianum H. F. Copeland 1931-6-10 1537 Butte Colby Canyon Jonesville, Colby Canyon 1524 Comment
  JEPS113301  Eriogonum umbellatum var. ahartii L. P. Janeway 2006-8-9 8836 Butte Northern High Sierra Nevada. Plumas National Forest; along the northwest edge of Mooreville Ridge 9.6 air km west-soutwest of La Porte. Comment
  CAS-BOT-BC265214  Eriogonum umbellatum var. speciosum John Thomas Howell 1951-6-26 27524 Butte Near Pulga, Sierra Nevada 417 Comment
  CHSC42490  Eriogonum ursinum var. ursinum Lowell Ahart 1987-5-27 5717 Butte Road cut along Poe Power House Road, about 3/4 mile north-west of the Poe Power House, about 1 1/2 miles south-east of Jarbo Gap. 365 Comment
  CHSC45482  Eriogonum vimineum Lowell Ahart 1981-8-11 3026 Butte Growing on dry gravel bars along North Honcut Creek, about 1 mile north and 3 miles east of Honcut, Peter Ahart Ranch, about 12 miles south of Oroville. 45 Comment
  CHSC63429  Eriophorum gracile V. H. Oswald; L. P. Janeway, L. Hanson, et al. 1994-6-22 6350 Butte Large marshy meadow on the W side of Willow Creek near the Tehama County boundary, ca. 1 mi NW of Jonesville. 1539 Comment
  CHSC101995  Eriophyllum lanatum Brian H. McMurtry 1980-2-21 4 /25/1979 Butte Roadside, end of Chico Creek Road. 97 Comment
  CAS-BOT-BC308169  Eriophyllum lanatum var. grandiflorum E. B. Copeland 1930-7-11 492 Butte Jonesville 1550 Comment
  UC600403  Eriophyllum lanatum var. grandiflorum H. F. Copeland 1931-6-10 Butte gulch draining into Colby Canyon; Jonesville 1524 Comment
  UC896354  Eriophyllum lanatum var. grandiflorum A. A. Heller 1915-5-28 11909 Butte near Cohasset; Sierra foothills Comment
  CAS-BOT-BC301465  Eriophyllum lanatum var. integrifolium A. A. Heller 1917-7-26 12821 Butte Butte Meadows 1402 Comment
  CAS-BOT-BC301466  Eriophyllum lanatum var. integrifolium A. A. Heller 1917-7-26 12821 Butte Butte Meadows 1402 Comment
  JEPS117915  Eriophyllum lanatum var. integrifolium L. P. Janeway & Linus Gog 2008-7-18 9437 Butte Along Philbrook Creek between the east end of Philbrook Reservoir and Concow Road Northern High Sierra Nevada 1689 Comment
  CHSC100985  Erodium cicutarium L. P. Janeway 2008-3-18 9239 Butte Cascade Range Foothills. East edge of City of Chico; south side of Humboldt Road 1.4 km northeast of Bruce Road. 126 Comment
  CHSC71180  Erodium moschatum Lowell Ahart 1998-6-9 8002 Butte About 5/8 mile northwest of the lone oak tree, northwest of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 396 Comment
  CHSC35701  Eryngium castrense J. D. Jokerst 1982-5-1 1549 Butte Top of North Table Mt. Ca 200 met SE of Cherokee Rd at the mesa's E edge. Comment
  HSC38053  Eryngium vaseyi Thomas W. Nelson, Jane P. Nelson 1976-5-9 2459 Butte Dry meadow at intersection of Palermo Rd. & Hwy 70, about 4 mi. S of Oroville Comment
  CHSC115453  Erysimum capitatum M. Sutton; K. Schierenbeck 2013-5-5 49 Butte Deer Creek. 657 Comment
  CAS-BOT-BC151491  Erythranthe filicifolia Lowell Ahart 1987-5-12 5634 Butte South of Lumpkin ridge Road, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls 1280 Comment
  CAS-BOT-BC153862  Erythranthe glaucescens E. B. Copeland 1899-3-1 s.n. Butte Chico Comment
  CHSC44785  Erythranthe glaucescens R. Banchero 1980-3-21 73 Butte Along Hwy 32, 4.2 mi N of Humbolt Rd, Ca 0.5 mi N of Ten Mile House. 487 Comment
  CAS-BOT-BC153853  Erythranthe glaucescens Jed McClellan; Bonnie McClellan 1976-4-16 s.n. Butte Honey Run Road Comment
  CHSC40891  Erythranthe guttata Lowell Ahart 1985-6-17 5056 Butte 100 yards south of the dirt road, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 975 Comment
  CAS-BOT-BC151463  Erythranthe latidens A. A. Heller 1914-5-1 11343 Butte Chico-Hamilton road 6 miles from Chico Comment
  SEINET10834239  Erythronium grandiflorum var. giganteum R. M. Austin Austin 5 Butte Butte Creek Comment
  CHSC33578  Erythronium multiscapideum M. S. Taylor 1981-4-14 3535 Butte S side of Ponderosa Way. Ca. 1.10 mi n of its jct with Concow Rd, ca. 2 mi n of Lake Concow, ca. 3/4 mi s of Flea Mt. 1036 Comment
  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
  CAS-BOT-BC402641  Eschscholzia caespitosa A. A. Heller 1919-4-18 13107 Butte Canyon of Mud Creek above Richardson Springs Comment
  POM253319  Eschscholzia caespitosa subsp. caespitosa A. A. Heller 1938-4-17 15041 Butte Slope back of the Salmon Hole on Chico Creek east of Chico 122 Comment
  CAS-BOT-BC402967  Eschscholzia californica A. A. Heller 1912-5-23 10747 Butte Table Mountain Olive Ranch north of Oroville Comment
  CAS-BOT-BC402974  Eschscholzia californica Alice Eastwood 1913-6-18 s.n. Butte Chico Comment
  UCD95290  Eschscholzia californica Curtis Clark 1975-6-25 503 Butte Butte Canyon Road, 0.9 mile east of junction of Manzanita and Centennial Avenue in Chico. Comment
  RSA715717  Eschscholzia lobbii L. P. Janeway 2005-3-1 8331 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Rd. 1.8 km northeast of Bruce Road. 134 Comment
  JEPS115504  Eucalyptus camaldulensis Lowell Ahart 2009-6-12 15843 Butte On the east side of the deep pen, about 50 yards north of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 130 yards east of Cedar Grove, Lower Bidwell Park, Chico 67 Comment
  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
  CHSC34808  Euphorbia crenulata M. S. Taylor 1980-5-8 2615 Butte Ca. 3 mi n of Forest Ranch, ca. 1 mi e of Hwy 32. 853 Comment
  CAS-BOT-BC202420  Euphorbia ocellata Lowell Ahart 1989-5-23 6256 Butte Along the edges of Avocado Road, about 1/2 mile west of the Oroville Bangor Highway, about 1 mile north-west of Bangor 213 Comment
  CHSC26766  Euphorbia peplus P. Moyer 1972-3-4 107 Butte CSUC Campus. Next of Chicano Center, 2nd and Ivy. 60 Comment
  JEPS119520  Euphorbia serpillifolia subsp. serpillifolia Lowell Ahart 2011-10-29 17722 Butte On the south side of Biggs Princeton Road, about 500 yards west of Riceton Highway, about 1 miles northwest of Biggs. Comment
  CHSC50816  Eurybia integrifolia Vernon Oswald 1990-7-23 4381 Butte Meadow at the headwaters of the east branch of Willow Creek, ca. 1 mile south of Humbug Summit. 1938 Comment
  CHSC49545  Festuca arundinacea Vernon Oswald 1985-5-13 1756 Butte Upper Bidwell Park, Chico, on the s perimeter of the Police Pistol Range. 91 Comment
  CHSC73886  Festuca californica B. Castro 1997-6-13 736 Butte Mtn. House Proposed SIA. Ca 2 air mi NE of Brush Creek and 1.1 air mi E of Mtn. House, along the 'C' spur off USFS Rd 22N54, south of Mtn House Creek. Along dirt road edges. 1082 Comment
  CHSC93936  Festuca californica L. P. Janeway 2006-5-28 8641 Butte Northern High Sierra Nevada. Open serpentine bowl on west side of Concow Road about 3.2 mi northeast of the upper end of Concow Reservoir. 860 Comment
  CHSC96836  Festuca californica Lowell Ahart 2007-5-29 13939 Butte On the south side of the Dome Trail, trail leads to the Middle Fork of the Feather River, about 100 yards northeast of the trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Big Bald Rock, about 16 miles (air) northeast of Oroville. 844 Comment
  CHSC116989  Festuca microstachys var. pauciflora Lowell Ahart 2016-6-4 20935 Butte On the west side of Ponderosa Way, about 1 mile (air) northwest of Sunset Hill, about 2 1/8 mile (air) northwest of Forbestown. 732 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
  CHSC60868  Festuca subuliflora Vernon H. Oswald; Lowell Ahart 1993-6-22 5563 Butte Long Ravine W of Stirling City, along Hendricks Canal ca. 0.25 mi S of the Diversion Dam. 950 Comment
  CAS-BOT-BC77688  Ficus carica John Thomas Howell 1959-9-20 34702 Butte Feather River Highway 5.5 miles below West Branch bridge Comment
  CHSC115405  Ficus carica M. Rogers 2013-5-14 Butte Oroville, Brad Freeman Tail off Oro Powerhouse Road next to the spillway. 80 Comment
  CHSC77602  Ficus carica L. P. Janeway 2000-3-29 6642 Butte Sacramento Valley. In narrow riparian strip along Little Chico Creek at Salem Street in Chico. 60 Comment
  CHSC45132  Fimbristylis autumnalis Vernon Oswald 1987-7-23 3148 Butte Feenstra's Riverview Orchard located at the w end of Cana Rd. between the s half of Cana Lake (Dicus Slough) and the Sacramento River. 48 Comment
  CHSC50553  Floerkea proserpinacoides Vernon Oswald; Lowell Ahart 1990-7-5 4352 Butte Headwaters of Willow Creek, 0.7 mi (odometer) west of Humbug Rd along a logging road just south of Cold Springs (near Humbug Summit), ca. 4 mi east of Jonesville. 1950 Comment
  CHSC66658  Foeniculum vulgare Vernon H. Oswald; Lowell Ahart 1996-7-22 8076 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wldlife parcel between 7 Mile Lane and the Sacramento River. Growing along the edge of a levee road along the N side of Tract 6, Sanctuary I. 33 Comment
  RSA325094  Fragaria vesca subsp. californica M. S. Taylor 1981-4-28 3571 Butte Along Four Trees Road, 0.5 to 1mile E of Hwy 70. 2-3 mile NE of Pulga. 671 Comment
  CHSC12004  Fragaria virginiana E. B. Copeland 1929-7-16 373 Butte Jonesville. 1550 Comment
  SEINET10483092  Fragaria virginiana var. platypetala Mary Susan Taylor, Lowell Ahart 1981-8-15 Taylor 4190 Butte T26N R5E ne 1/4 ne 1/4 sec. 30. Jones- ville SW quad. N end of Snag Lake (dry this year), dry clay soil, Yellow Pine Forest and Montane Meadow, E side of Humbug Rd. ca. 14 mi NE of Stirling City. 5700 ft. 1737 Comment
  CAS-BOT-BC62904  Frangula californica subsp. tomentella Helen M. Edwards 1917-6-1 s.n. Butte De Sabla Comment
  CHSC108172  Frangula californica subsp. tomentella L. P. Janeway 2011-8-18 10665 Butte Northern High Sierra Nevada. Plumas National Forest; eastern slope of Bloomer Hill, 1.0 km east of the top. East-sloping springtime meadow (now dry). 701 Comment
  SD10094  Frangula rubra E. B. Copeland 1931-7-28 Butte Jonesville; dry ridge west of North Willow Creek 1650 Comment
  CHSC1083  Fraxinus dipetala V. Holt 1931-4-24 Butte Forest Ranch. 548 Comment
  CHSC1085  Fraxinus latifolia 1954-5-30 Butte Nelson's Bar, West Branch of Feather River. 304 Comment
  POM76517  Fraxinus latifolia C. C. Bruce 1897-03 1789 Butte Little Chico Comment
  CHSC40667  Fremontodendron californicum J. D. Jokerst; L. Ahart 1984-3-20 1950 Butte Edge of Ponderosa Rd. (=Bloomer Rd.) 1.45 miles north of its junction with Highway 162. 3 air miles SW of Berry Creek. Comment
  CHSC4619  Fremontodendron californicum R. Carter 1966-4-26 361 Butte Found ca. 10 mi. NE of Oroville along N side of USFS road 21N40 to Bloomer Mt., growing along rocky roadside 1 mi. W from intersection with Oroville-Quincy Rd. 701 Comment
  CAS-BOT-BC130321  Fritillaria eastwoodiae M. S. Taylor 1979-3-20 1947 Butte Ca. 1 mi n of jct of north fork Feather River and Hwy 70 along an old road, ca. 10 mi n of Oroville 304 Comment
  CHSC39597  Fritillaria eastwoodiae Lowell Ahart 1983-4-14 3933 Butte On the east side of Woodleaf Creek, above the road, about 3/8 mile south-west of the Forbestown Reservoir., about 4 miles north-east of Forbestown. 450 Comment
  CHSC4080  Fritillaria eastwoodiae J. E. Bowlin 1967-4-10 17 Butte Ca. 10 feet s of Honey Run Rd. and ca. 9.1 miles e of corner of Skyway and Honey Run Rd., Chico. 152 Comment
  CAS-BOT-BC505285  Fritillaria micrantha Lowell Ahart 1982-4-8 3271 Butte Above the road cut bank along Swedes Flat Road, about 1 mile east of the Bangor Oroville Highway, about 7 miles north of Bangor 350 Comment
  CAS-BOT-BC505286  Fritillaria micrantha Lowell Ahart 1983-4-14 3933 Butte On east side of Woodleaf Creek above the road, about 3/8 mile south-west of the Forbestown Res., about 4 miles north-east of Forbestown. 450 Comment
  SEINET10469532  Fritillaria phaeanthera Mary Susan Taylor 1976-3-16 Taylor 1028 Butte Scattered in Riparian Woodland, on S side of Butte Creek, ca. 500 m W of Honey Run Covered Bridge, ca. 11 mi E of Chico. 152 Comment
  RSA31669  Fritillaria pluriflora A. A. Heller 1916-3-5 s.n. Butte Along Hwy 10 miles north of Chico Comment
  UC725882  Fritillaria recurva A. A. Heller 1939-4-8 15367 Butte about 4 mi from Magalia (on the Coutolene Road); Coutolene Road Comment
  CHSC61007  Galium aparine Lowell Ahart 1993-6-20 6988 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  RSA127595  Galium aparine Peter H. Raven 1953-5-9 5431 Butte 8 miles from Bangor on Oroville Rd. Comment
  UC1609061  Galium aparine Lowell Ahart 1993-6-20 6988 Butte about 1 air mi nw Lost Creek Reservoir Dam; Mooreville Ridge, Jackass Flat 1158 Comment
  CHSC65586  Galium bolanderi L. P. Janeway 1995-6-1 4770 Butte At the far western end of Jackson Ranch Ridge, about 0.9 mi east-northeast of the falls of Feather Falls. 1054 Comment
  JEPS26676  Galium bolanderi P. C. Hutchison 1969-6-9 2099 Butte on hwy US Alt. 40 1 mi s (above) Pulga Bridge; canyon of the north fork of the Feather River Comment
  SEINET10968829  Galium nuttallii Mary Susan Taylor 1979-3-20 Taylor 1940 Butte T21N R4E nw1/4 sec. 21. Cherokee Quad. Along old road on N side of Hwy 70 following West Branch of the Feather River, which begins at S side of bridge over N fork of Feather River, ca. 10 mi N of Oroville; limestone outcrops within Foothill Woodland. 305 Comment
  POM68694  Galium nuttallii var. tenue C. C. Bruce 1897-05 1934 Butte Little Chico. Comment
  CHSC40370  Galium parisiense Lowell Ahart 1985-6-17 5062 Butte 100 yards south of the dirt road, Lumpkin Ridge, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 975 Comment
  CHSC93858  Galium parisiense Lowell Ahart 2006-6-9 12651 Butte On the east side of Bardees Bar Road, south of the small stream, about 1/4 mile southwest of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga. 403 Comment
  JEPS127073  Galium parisiense Lowell Ahart 2016-5-30 20901 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
  SEINET5550943  Galium parisiense H. S. Gentry, S. Koch 1962-1 19783 Butte 7 mi. NE of USDA Field Station, Chico, along road to Centerville. 152 Comment
  UC1143092  Galium porrigens C. G. Albertus 1933-6-6 23 Butte 1/4 mi w Pentz; Chico Quadrangle 137 Comment
  RSA325145  Galium porrigens var. tenue M. S. Taylor, V. Oswald 1984-4-4 5374 Butte Along Humbug Rd. Ca 0.5 miles E of Honey Run Covered Bridge. Ca 6 air miles E of Chico. 183 Comment
  UCD170497  Galium porrigens var. tenue D. O. Burge 2017-3-18 2231 Butte Butte Creek watershed, below Doe Mill Ridge. 220 Comment
  CHSC32843  Galium tricornutum S. Scott 1981-4-24 Butte 1 km E of Manzanita Ave and Centenial Ave jct, 2.5 km E of Chico. 97 Comment
  CHSC39346  Gamochaeta argyrinea Lowell Ahart 1983-6-26 4152 Butte Along the edge of Ponderosa Way, about 1 1/2 miles south-east of the East Fork of Canyon Creek, about 14 1/2 miles north-east of Oroville. The sign gives Big Bridge Road instead of Ponderosa Way. 575 Comment
  JEPS126557  Gamochaeta ustulata Lowell Ahart 2016-5-25 20878 Butte About 200 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. Comment
  CAS-BOT-BC169939  Garrya fremontii H. F. Copeland 1338 Butte Neighborhood of Jonesville, 26-VII-30, by Government Trail 1676 Comment
  CHSC107395  Garrya fremontii Blake McSorley 2010-2-16 Butte Crownpoint Road and Hwy 32. 579 Comment
  CHSC3588  Garrya fremontii Susan Carrauthers 1966-3-5 29 Butte E. of city of Chico along highway 32 toward Susanville ca. 12 mi. Comment
  CHSC95071  Garrya fremontii L. P. Janeway; Dan Lubin, Linnea Hanson, Jim Bishop, Catie Bishop 2006-6-12 8688 Butte Northern High Sierra Nevada; Plumas National Forest, Feather River Ranger District. Top of the ridge at 'Magalia Serpentine' about 40 m west of Coutelenc Road and 300 m north of Skyway. 713 Comment
  RSA134772  Garrya fremontii Percy C. Everett, E. K. Balls 1959-10-20 23910 Butte 9.4 mi NE from Chico, State Hwy 32, toward De Sabla. 793 Comment
  SBBG126078  Garrya fremontii L. Ahart 2012-3-2 17759 A Butte ca 200 yards N of Ten Mile House Rd, ca 200 yards W of Hwy 32, ca 9 mi NE of Chico 422 Comment
  SEINET5765228  Garrya fremontii J. T. Howell 1975-6-15 51082 Butte 2 miles from paradise on 'Skyway' to Chico. 396 Comment
  CAS-BOT-BC282599  Gastridium phleoides Lowell Ahart 1977-5-21 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC282605  Gastridium phleoides A. A. Heller 1914-6-2 11474 Butte 8 miles north of Oroville Comment
  CAS-BOT-BC282606  Gastridium phleoides John Thomas Howell 1962-6-16 37592 Butte 3.5 mi. n. of Pentz, Sierra Nevada 396 Comment
  CHSC78003  Gastridium phleoides Lowell Ahart 2000-5-13 8340 Butte On the south side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 42 Comment
  HSC93378  Gastridium phleoides L. Ahart 1995-5-30 7584 Butte S of Beatson Hollow, 1/8 mi. N of Cherokee Road, N Table Mtn., 7 mi. N of Oroville. 335 Comment
  JEPS127202  Gastridium phleoides Lowell Ahart 2016-6-4 20918 Butte About 100 yards north of McCabe Creek, about 3 miles (air) west of Forbestown. Comment
  UCD66713  Gastridium phleoides C. G. Albertus 1933-5-29 8 Butte 1/2 mi. N. of Wick. 60 Comment
  UC1594706  Gastridium ventricosum Lowell Ahart 1992-5-9 6755 Butte about 1 1/2 mi w Oroville Dam (on the n side of the Thermalito Diversion Pool, Lake Oroville Recreation Area); Lake Oroville Recreation Area, Thermalito Diversion Pool 76 Comment
  JEPS108157  Gaultheria ovatifolia L. P. Janeway 1994-7-19 4696 Butte Northern High Sierra Nevada. South side of Cascade Creek 0.4 mi east of confluence with South Branch Middle Fork Feather River 1179 Comment
  CHSC37444  Gayophytum diffusum subsp. parviflorum R. A. Schlising 1981-7-3 4130 Butte E of Philbrook Reservoir; at trailside. 1828 Comment
  JEPS104190  Gayophytum diffusum subsp. parviflorum Lowell Ahart 2003-8-17 10513 Butte North edge of the meadow, ca 100 yd ne of the buildings in Butte Creek House Meadow, ca 3 mi ne of Snag Lake, ca 7 mi (air) e of Butte Meadows. 1771 Comment
  CHSC115425  Genista monspessulana Ariana Gehrig 2013-4-30 Butte Paradise Lake, Magalia. Along pathway. 783 Comment
  JEPS118597  Genista monspessulana L. P. Janeway 2011-3-9 10228 Butte Sacramento Valley. South side Feather River just east of Bedrock Park, Oroville; about 10-15 m back from the edge of the water and about 1 m higher. Oroville 7.5; quad. Comment
  CHSC99674  Gentiana newberryi var. tiogana R. A. Schlising; A. Kannely 2006-9-19 4466 Butte Butte Creek House Meadow Ecological Reserve, about 3 miles e of Jonesville, along Humbug Road. In turf of large meadow on Butte Creek. 1767 Comment
  CHSC101670  Geranium carolinianum Lowell Ahart 2009-4-26 15649 Butte Upper Bidwell Park, on the north side of Ten Mile House Road, about 100 yards west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 461 Comment
  SFV1989  Geranium carolinianum M. L. Vincent 1962-4-15 171 Butte Sierra Nevada Intersection of Bernum and Pentz Roads. Near the town of Pentz. 200 Comment
  CDA38793  Geranium dissectum L. Ahart 2012-5-2 17968 Butte Under the Government Pole Line, about 100 yards west of the Easter Cross Parking Lot, Upper Bidwell Park, about 1 mile east of Chico. Comment
  CHSC113303  Geranium dissectum Lowell Ahart 2014-4-9 19328 Butte Rice field road, near the pump, on the north side of Colusa Highway, about 4/10 of a mile east of the intersection of Pennington Road and Colusa Highway, about 5 1/2 miles west of Gridley. 22 Comment
  CDA4657  Geranium dissectum T. C. Fuller 1962-5-17 8704 Butte Highway 99E at Cana Highway, ca. 10 miles northwest of Chico. 0 Comment
  UCD169896  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
  RSA29020  Gilia capitata Lincoln Constance 1941-5-28 2827 Butte S Branch of the Feather River at Magalia, Sierra Nevada foothills. 488 Comment
  CHSC45445  Gilia capitata subsp. mediomontana Lowell Ahart 1984-6-8 4671 Butte Along the dirt road to the generator, on the north side of Ponderosa Reservoir, 3/4 mile east of the Ponderosa Dam, about 2 miles north of Forbestown. 457 Comment
  JEPS113185  Gilia capitata subsp. mediomontana Lowell Ahart 2007-5-29 13920 Butte About 1/8 mile south of Bald Rock Dome, on the west side of the Dome Trail, trail leads to the Middle Fork of the Feather River, about a mile by the trail from the trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Bi 704 Comment
  UC134005  Gilia capitata subsp. mediomontana Mrs. R. M. Austin 1899-7-1 833 Butte Colby Comment
  CHSC29707  Gilia capitata subsp. pedemontana J. D. Jokerst 1980-4-21 627 Butte Top of North Table Mt., N of Cherokee Rd. Comment
  SEINET11268216  Gilia leptalea subsp. leptalea Lowell Ahart 1993-6-26 7035 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam.; 0 1158 Comment
  POM74092  Gilia tricolor C. C. Bruce 1897-04 1925 Butte [No locality information provided] Comment
  CHSC1256  Gilia tricolor subsp. tricolor A. Riker 1897-4-1 Butte Comment
  CHSC24975  Gilia tricolor subsp. tricolor J. Cox 1976-3-10 44 Butte N. Table Mt. Ca. 300 yds. n of Cherokee Rd., 4.3 mi. ne of Oroville. 426 Comment
Read comments
Jan 19 2011
  CAS-BOT-BC266588  Githopsis pulchella Roxana S. Ferris 1952-5-17 12485 Butte State Highway 32 about 6 miles E of Chico above Little Chico Creek Comment
  UC764582  Githopsis pulchella subsp. campestris R. F. Hoover 1937-5-18 2236 Butte 3 mi n Chico Comment
  UCD80202  Githopsis pulchella subsp. serpentinicola CNPS SN Foothill Team 2006-5-23 SNNR 0789 b Butte BLM Parcels near Paradise. 520 Comment
  CHSC76420  Glinus lotoides Lowell Ahart 1999-10-28 8297 Butte On the bottom of a small wash, just southeast of the small pond where you can park, 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
  CHSC110134  Glyceria declinata L. P. Janeway; B. Castro 2012-4-15 10805 Butte Northern Sierra Nevada Foothills. North Table Mountain; along the main drainage to the Fern Falls branch of Coal Canyon about 0.6 creek km east of the Falls. 381 Comment
  UC1594725  Glyceria elata Lowell Ahart 1992-7-26 6847 Butte about 2 air mi s Snow Mountain (about 0.5 mi n of Carr Mine) 1767 Comment
  CDA28229  Glyceria elata T. C. Fuller 1962-7-12 9184 Butte 2 miles east of Butte Meadows, road to Jonesville, bottomland of Butte Creek 0 Comment
  SEINET10904962  Gnaphalium chilense Mary Susan Taylor 1977-8-16 Taylor 1448 Butte Butte College Campus, ca. 15 mi S of Chico. With Marc Hayes. 61 Comment
  UC600737  Gnaphalium palustre H. F. Copeland 1930-8-28 Butte near head of Willow Creek; Jonesville Comment
  CHSC48989  Gratiola ebracteata Vernon Oswald 1987-8-10 3200 Butte Snag Lake located 2.5 mi (air) se of Jonesville. 1726 Comment
  SD111956  Gratiola ebracteata Barbara Ertter, Jeffrey Strachan 1980-5-5 3266 Butte Peter Ahart Ranch ca 1 1/2 mi northeast of Honcut between Oroville and Marysville, pasture north of the house, ditch 29 Comment
  CHSC84406  Grindelia hirsutula var. davyi Lowell Ahart 2003-7-30 10462 Butte At the trail head to Bald Rock Dome, about 1/8 mile east of Bean Creek Road, about 1 1/4 miles (air) southeast of Little Bald Rock, about 4 miles (air) southeast of Brush Creek. 801 Comment
  CHSC24503  Hackelia californica M. S. Taylor 1976-6-28 1167 Butte Ca. 4 mi se of Jonesville, ca. 2 ft n of Scotts John Creek Rd. 1828 Comment
  CHSC41263  Hastingsia serpentinicola S. C. Morey 1983-7-21 483 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  CHSC33215  Heliotropium curassavicum R. E. Preston 1981-6-19 98 Butte Gray Lodge State Wildlife Area, ca. 14.5 km ssw of Gridley. At side of road near edge of water, on levee, ca. 100 m w of Headquarters. 20 Comment
  JEPS96030  Heliotropium curassavicum Vernon H. Oswald and Lowell Ahart 1996-6-10 7748 Butte near U.S. Fish & Wildlife Service parcel between 7 Mile Lane & Sacramento R Sacramento R. Nat'l Wildlife Refuge (edge of farm rd. bordering slough e. side of Little Grant, near Riparian Sanctuary); , Llano Seco Unit 28 Comment
  SEINET10902879  Heliotropium europaeum Mary Susan Taylor 1974-10-11 Taylor 329 A Butte Along Sacramento River, in vicinity of the washout on River Road, ca. 10 mi W of Chico. Riparian Woodland. 61 Comment
  CHSC44378  Helminthotheca echioides Lowell Ahart 1988-6-23 6060 Butte Along the east side of Wyandotte Miners Ranch Road, about 1/2 mile south of Olive Highway, about 5 miles south-east of Oroville. 259 Comment
  CHSC21381  Hemerocallis fulva M. S. Taylor 1975-6-22 782 Butte On s side of Big Chico Creek, ca. 50 ft e of Little Cafeteria, California State University Chico. Comment
  CHSC100948  Hemizonella minima R. A. Schlising 1980-6-10 3671 Butte Carpenter Ridge, along Humboldt Road, 1.9 miles northeast of junction with Highway 32 at Lomo. 1356 Comment
  CAS-BOT-BC309788  Hemizonia congesta subsp. luzulifolia H. M. Hall 1914-8-1 9825 Butte Near Chico Comment
  CHSC31562  Herniaria hirsuta subsp. hirsuta L. Ahart 1975-7-4 845 Butte In roadway 1 mi n and 1 me e of Honcut. 38 Comment
  CAS-BOT-BC310133  Hesperevax acaulis Lowell Ahart 1979-4-17 s.n. Butte 2 miles north-west of Bangor. Hill-side ca. 1/4 mile north of Avacado Ave. 150 Comment
  CAS-BOT-BC310157  Hesperevax caulescens H. E. Brown 1897-4-15 209 Butte Near Clear Creek Comment
  POM36296  Hesperevax caulescens C. C. Bruce 1897-06 2112 Butte Fields Comment
  UC134866  Hesperevax caulescens Mrs. R. M. Austin 1896-5-1 685 Butte Comment
  CAS-BOT-BC175976  Hesperolinon californicum Mrs. C. C. Bruce 1897-3-1 1775 Butte Little Chico Comment
  CHSC44304  Hesperolinon californicum Lowell Ahart 1988-5-12 5987 Butte Open pasture field, about 1/2 mile north-east of the Honcut Cemetary, Joie Osgood Ranch, about 3 1/2 miles east and 1 1/2 miles north of Honcut. 60 Comment
  JEPS32279  Hesperolinon californicum Mrs. R. M. Austin April, 1896 194 Butte plains near Chico Comment
  CHSC37687  Hesperolinon micranthum M. S. Taylor 1981-5-21 3769 Butte S side of Concow Rd, 1/2 mi s of its jct with Ponderosa Way, ca. 20 air mi n of Oroville. 853 Comment
  JEPS120917  Hesperolinon micranthum Lowell Ahart 2013-5-27 18713 Butte On the E side of Black Bart Road, about 3/4 mile by road SW from the intersection of Forbestown Road and Black Bart Road, about 3.5 air miles SW of Forbestown. Comment
  CHSC39533  Heterocodon rariflorum Lowell Ahart 1983-6-12 4040 Butte Along the edge of aroad near a small meadow, about 1 mile south of Crystal Hill, near Oregon Gulch, near Lake Oroville, about 7 miles south-west of Feather Falls. 425 Comment
  JEPS94303  Heterocodon rariflorum Lowell Ahart 1997-8-1 7776 Butte about 1/4 mi e of Table Mountain (about 8 air mi ne of Stirling City, near some small streamlets of Little Kimshew Creek, in Snow Meadow); Snow Meadow 1524 Comment
  POM173731  Heterocodon rariflorum H. F. Copeland 1928-8-18 945 Butte Neighborhood of Jonesville; near Butte Creek. 1524 Comment
  SEINET267154  Heteromeles arbutifolia T. A. Ranker, P. G. Trapp 1994-6-17 1617 Butte Pence Road south of Paradise. 395 Comment
  CAS-BOT-BC420459  Heuchera micrantha var. erubescens Lowell Ahart 1987-5-9 5596 Butte along Pulga Road, about 1/2 mile SW of Bardees Bar along the N Fork of the Feather River, about 3 miles SW of Pulga 365 Comment
  UCD16139  Heuchera micrantha var. pacifica Maura Cullinane 1983-5-29 24 Butte California. Butte County: take Forest Hill Rd. ramp and go east off I 80 to Mosquito Ridge Rd., drive 13.5 mi. Site #7. 1066 Comment
  UC1964682  Hibiscus lasiocarpos var. occidentalis G. E. 1958-7-11 Butte Near Oroville. Comment
  CHSC102832  Hirschfeldia incana Lowell Ahart 2009-6-19 15939 Butte Along trail, on the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 203 Comment
  CAS-BOT-BC55332  Hirschfeldia incana Lowell Ahart 1984-6-10 4689 Butte Along the edge of a new subdivision road about 1 mile southeast of Hurleton, 1/12 mile east of the Oak Grove Cemetery. 500 Comment
  CHSC100879  Hoita macrostachya L. P. Janeway 2008-10-8 9604 Butte Cascade Range Foothills Upper Bidwell Park, Chico; north side of Big Chico Cree 455 m west of Day Camp. Comment
  CDA35776  Hoita macrostachya J. R. Keck Jr. 1992-6-3 PDR# 724909 Butte Along road to Nelson Point boat access near Paradise. 0 Comment
  CHSC41363  Hoita orbicularis R. A. Schlising; R. Banchero 1980-7-7 3839 Butte Along logging road E of Village of Feather Falls in E part of county. Near head of Little Buckeye Creek. 998 Comment
  CAS-BOT-BC320295  Holocarpha virgata Lowell Ahart 1976-9-7 s.n. Butte Honcut 33 Comment
  CHSC58951  Holodiscus microphyllus var. glabrescens Lowell Ahart 1992-7-26 6842 Butte Slope, on the west side of a stream, about 1/2 mile north of the Carr Mine, about 2 (air) miles south of Snow Mountain. 1767 Comment
  CHSC48170  Holozonia filipes Vernon Oswald 1985-6-15 1831 Butte North Honcut Creek on Peter Ahart Ranch, ca. 2.75 mi ne of Honcut. 38 Comment
  CAS-BOT-BC311883  Holozonia filipes A. A. Heller 1914-7-13 11565 Butte Mt. Ida Ranch, 10 miles east of Oroville Comment
  SEINET10528776  Hookera californica A. Arthur Heller 1914-5-11 Heller 11389 Butte Hills 8 miles northof Oroville. Comment
  CHSC3923  Hordeum jubatum A. K. Revard 1967-4-15 16 Butte In ditch, ca. 12 ft. s of Royles Rd., ca. 2 mi w of Hwy. 99, and ca. 19 mi n w of Chico. 60 Comment
  CHSC2154  Hordeum murinum subsp. glaucum H. Silberman; D. Isaac 1949-5-9 Butte West side of football field, CSC campus. 54 Comment
  CHSC26471  Hordeum murinum subsp. leporinum P. Moyer 1972-3-11 126 Butte 100 ft. from Citrus Ave. Bridge on slope of n bank of Chico Ck. 60 Comment
  CHSC8218  Hordeum murinum subsp. leporinum Dave Isle 1969-3-21 260 Butte Just off the S. side of the road through Upper Bidwell Park about 50 yards W. of the entrance to the golf course (E. of Chico). 59 Comment
  CHSC56635  Hordeum vulgare J. Lund 1980-4-28 Butte 0.3 mi south of Palermo on Hwy 99. 76 Comment
  CHSC29838  Horkelia californica subsp. dissita M. S. Taylor; R. S. Schlising, L. Ahart 1980-5-31 2765 Butte E side of Kunkle Reservoir, ca. 1/4 mi e of Pentz-Magalia Hwy, ca. 3 mi s of Paradise. 441 Comment
  CHSC46239  Horkelia fusca subsp. parviflora Pauleen Broyles 1987-7-5 1075 Butte Ca 7 km n. of Inskip on Bull Hill Rd, along Coon Creek. 1500 Comment
  CHSC46589  Horkelia fusca subsp. parviflora Vernon H. Oswald 1989-7-4 3837 Butte Meadow at Butte Creek House, ca. 3.3 mi (air) se of Jonesville. At edge of meadow. 1767 Comment
  CAS-BOT-BC143980  Horkelia fusca var. tenella H. F. Copeland 1920-8-2 205 Butte Jonesville Meadow 1219 Comment
  UCD113498  Horkelia fusca var. tenella H. F. Copeland 1928-8-2 371 Butte Jonesville. 1524 Comment
  CHSC1557  Horkelia tridentata subsp. flavescens M. Davidson 1929-5-2 Butte Paradise. 609 Comment
  UC860239  Horkelia tridentata subsp. tridentata A. A. Heller 1914-5-18 11413 Butte near Forest Ranch; west slope of the Sierra 701 Comment
  CAS-BOT-BC536250  Horkelia tridentata var. tridentata Lowell Ahart 1985-5-15 5001 Butte 1/8 mile east of the dirt road, 1 1/2 miles north-east of Concow Res. 800 Comment
  CHSC112456  Hosackia stipularis var. ottleyi Lowell Ahart 2013-5-18 18699 Butte Under the cleared poleline, about 50 yards southwest of the intersection of Forbestown Road and Black Bart Road, about 3 1/4 miles (air) southwest of Forbestown. 763 Comment
  CHSC35707  Hosackia stipularis var. ottleyi J. D. Jokerst 1982-5-16 1570 Butte Ponderosa Way ca. 1/2 mi N of its junction with Lower Forbestown Rd. 731 Comment
  CDA38353  Hydrocotyle umbellata L. Ahart 2000-9-2 8680 Butte About 4 miles (air) southwest of Oroville; about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area. Comment
  CHSC39098  Hydrophyllum occidentale R. A. Schlising 1982-5-19 4243 Butte Lumpkin Ridge, ne of village of Feather Falls. 1280 Comment
  SEINET10837219  Hydrophyllum occidentale Mary Susan Taylor 1979-5-4 Taylor 1997 A Butte Along Millsap Bar Road, 4 mi NE of its junction with Brush Creek Road, ca. 26 mi NE of Oroville; Yellow Pine Forest. 1006 Comment
  JEPS118482  Hypericum anagalloides Lowell Ahart 2011-7-9 17575 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
  CDA13229  Hypericum concinnum G. F. Hrusa, T. D. Wilfred 1996-7-8 13076 Butte Plumas National Forest; Old gun range along Old Railroad Grade Rd. immed. above Paradise Lake dam, approx. 3 m. N of Magalia. Comment
  CHSC46359  Hypericum concinnum Lowell Ahart 1989-5-23 6231 Butte Along the edge of a new subdivision road, 1/4 mile east of Dunstone Drive, about 1/2 mile north of Bangor Park Road, west of Bangor. 76 Comment
  CHSC55500  Hypericum concinnum L. P. Janeway 1991-6-7 3989 Butte Ca 0.8 mi east of Palermo-Honcut Road, ca 5.1 mi south of Palermo. Disturbed annual grassland. 38 Comment
  LA212279  Hypericum concinnum James R. Shevock; 1972-5-19 s.n. Butte Near Lake Oroville, along Highway #70. 91 Comment
  RSA25678  Hypericum concinnum C. B. Wolf 1941-7-23 4315 Butte Northern Sierra Nevada. 6 6/10 mi. W. of De Sabla on road to Forest Ranch. 762 Comment
  JEPS87158  Hypericum formosum var. scouleri Lowell Ahart 1992-8-2 6899 Butte ca. 3 (air) mi. n.e. Concow Reservoir (Concow Meadow, bottom of Concow Creek); Concow Meadow, Concow Creek 1097 Comment
  CHSC31958  Hypericum perforatum J. D. Jokerst 1979-7-6 404 A Butte Top of North Table Mt., bottom of dry, vernally moist depression ca. 300 m N of Cherokee Rd. where it intersects the E edge of mountain. 396 Comment
  CAS-BOT-BC401335  Hypericum scouleri E. B. Copeland 1930-7-18 426 Butte Jonesville 1550 Comment
  CAS-BOT-BC401336  Hypericum scouleri E. B. Copeland 1930-7-18 426 Butte Jonesville 1550 Comment
  CHSC29270  Hypochaeris glabra R. A. Schlising 1979-6-5 3442 -3 Butte Richvale vernal pools; 1/4 mi s of junction Hwy 162 (e to Oroville) and Hwy 99, along latter and across from Thermalito Afterbay. Comment
  CHSC6687  Hypochaeris glabra Marilyn Lee 1968-4-19 125 Butte Along Cherokee Road ca 2 miles S. of Cherokee, 105 yards E. of cemetary. Table Mt. Comment
  UCR66521  Ipomopsis aggregata H. F. Copeland 1928-8-14 0451 Butte Northern Sierra Nevada Mtns., neighborhood of Jonesville 1585 Comment
  SEINET6193256 Image available Iris hartwegii R. G. Bevers 1968-1 27 Butte 13 mi E of Chico on hwy 32 at the entrance to a ranch Comment
  POM109028  Iris hartwegii C. C. Bruce 1898-05 2408 Butte Doe mill Comment
  CHSC2205  Iris macrosiphon M. Roberson 1956-4-7 Butte SN of Paradise along Skyway. 426 Comment
  CHSC90188  Iris macrosiphon Camela J. Ott 1989-4-11 7 Butte Ca. 100 m ne of covered bridge, along e bank of Centerville Rd. 10.2 km ese of Chico. 120 Comment
  JEPS120115  Iris macrosiphon Lowell Ahart 2012-3-23 17795 Butte On the south side of Ten Mile House Road, about 1/2 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  CHSC36900  Iris tenuissima J. D. Nishball 1982-4-16 12 Butte Ca. 8.5 mi. se of Chico, off Honey Run Rd., s end of Covered Bridge; Butte Creek Canyon. 115 Comment
  SBBG40332  Iris tenuissima J. Ingram, A. Ingram 1960-4-6 500 Butte Endicot Springs on Neal Rd, S of Paradise Comment
  CAS-BOT-BC61868  Isoetes nuttallii Ahart; Jokerst 1985-5-10 4945 Butte East branch of Potter Ravine, on the bottom of the east branch of Potter Ravine, about 2 1/4 miles north of Oroville Dam 350 Comment
  CHSC21053  Isoetes nuttallii M. S. Taylor 1975-4-26 516 Butte On the se side of Kunkle Reservoir, ca. 500 yds e of Pentz-Magalia Hwy, ca. 1 mi s of Paradise. Comment
  CHSC83900  Isoetes nuttallii Lowell Ahart 2003-4-15 10094 Butte High water line of the vernal pool, about 70-100 feet southwest of the section corner pipe, about 1/8 mile southwest of the tall Digger Pine on the south edge of Beatson Hollow, about 1 1/4 miles northwest of the iron gate and fence, northwest of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 299 Comment
  CHSC55622  Isolepis setacea L. P. Janeway 1987-6-19 2246 Butte Meadow on Pinkard Creek, between Lewis Ridge and Mooreville Ridge; 6.5 mi from the Challenge-LaPorte Road and Travis Saddle via the road to Golden Trout Crossing. 1082 Comment
  JEPS122001  Isolepis setacea Lowell Ahart 2014-5-13 19467 Butte Along the sides of McCabe Creek, below the high water line of Lake Oroville, about 200 yards southwest of the poor parking area, about 11 miles (air) east of Oroville. Comment
  CAS-BOT-BC112642  Isolepis setacea Lowell Ahart 1983-6-12 4047 Butte 7 mi SW of Feather Falls 425 Comment
  CHSC109653  Jasminum mesnyi Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-19 18021 Butte On the north side of Big Chico Creek, on the north side of the paved park raod, southeast part of the old walnut orchard, south of Vallombrosa Avenue, about 1/8 mile west of Peterson Drive, Lower Bidwell Park, Chico. 76 Comment
  CAS-BOT-BC340245  Jensia rammii Lowell Ahart 1980-4-30 2141 Butte Along Hurleton-Swedes Flat Road 500 Comment
  UC1174970  Juglans californica var. hindsii P. C. Everett and E. K. Balls 1959-10-20 23906 Butte Henshaw Ave. Chico (at roadsides along orchards) 58 Comment
  CHSC109602  Juglans hindsii Lowell Ahart; Susan Bazell, Josephine Guardino 2012-5-31 18118 Butte On the north bank of Big Chico Creek, on the south side of the paved park road (Peterson Drive) about 300 yards west of the gate, Lower Bidwwell Park, Chico. 76 Comment
  CDA39581  Juglans hindsii J. T. Howell 1959-9-2 34703 Butte Feather River Highway 2 miles below West Branch Bridge. Comment
  CHSC37392  Juncus acuminatus R. A. Schlising 1980-8-31 3974 Butte Richvale Vernal Pools, 1/4 mi s of jct Hwy 162 to Oroville and Hwy 99, along latter and across from Thermalito Afterbay. Comment
  CHSC49603  Juncus acuminatus Vernon Oswald 1987-5-18 2906 Butte Butte Creek Reserve on the n side of Butte Creek e of Hwy 99. 68 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
  CHSC37255  Juncus articulatus L. Ahart 1982-8-22 3747 Butte Along edges of North Honcut Creek, Peter Ahart Ranch, ca. 1 mi n and 3 mi e of Honcut. 50 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
  UC203672  Juncus bufonius A. A. Heller 1914-6-2 11478 Butte 8 mi n Oroville Comment
  CHSC27576  Juncus bufonius var. bufonius Robert Schlising 1978-5-17 3263 Butte Magalia; serpentine outcrop just S of Magalia Res. And crossed by S. T. RR and Coutelenc Road. 670 Comment
  CHSC36969  Juncus bufonius var. bufonius M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4366 Butte Graylodge Wildlife Refuge, s of parking lot 1, ca. 1/2 mi ne of Headquarters, ca. 12 mi sw of Gridley. 19 Comment
  CHSC90956  Juncus bufonius var. bufonius Lowell Ahart 2005-4-14 11719 Butte Bottom of a deep drain ditch, about 200 feet east of the railroad tracks, north of Spruce Street, Gridley. 28 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
  JEPS122278  Juncus bufonius var. bufonius Lowell Ahart 2014-4-9 19339 Butte West end of Liberty Road, about one mile (air) south of Colusa Highway, about 7 miles (air) southwest of Gridley. Comment
  JEPS117209  Juncus capitatus Lowell Ahart 2010-5-14 16654 Butte In the tracks of an old road, 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
  CHSC42377  Juncus covillei Lowell Ahart 1987-5-27 5707 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
  CHSC49608  Juncus cyperoides Vernon Oswald 1985-6-15 1837 Butte Black Bart Rd., 0.7 mi sw of Forbestown Rd. 662 Comment
  JEPS118083  Juncus effusus subsp. effusus Lowell Ahart 2011-8-19 17636 Butte About 30 yards east of Know-northing Creek, in low area on the north side of Lumpkin Ridge Road, about 1/2 mile southwest of the intersection of Lumpkin Ridge Road, County Road and road to Cascade, about 5 miles (air) northeast of Feather Falls 1225 Comment
  SEINET10472476  Juncus effusus var. pacificus Mary Susan Taylor 1978-7-19 Taylor 1749 Butte Cherry Hill Campground, on S side of Old Humboldt Road, ca. 2 mi SW of Jonesville. 1524 Comment
  CHSC64053  Juncus ensifolius S. C. Morey 1993-8-4 705 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  CHSC78336  Juncus ensifolius Lowell Ahart 2000-6-27 8523 Butte North part of Big Bald Rock, area is about 100 yards south and west of the north and east forest line, about 3 miles (air) east of Madrone Lake, about 12 miles (air) northeast of Oroville. 963 Comment
  JEPS110169  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
  CHSC61520  Juncus hemiendytus var. hemiendytus Lowell Ahart 1993-6-20 6974 Butte Tracks of a logging Road, about 1/2v mile south of Quartz Hill. 1219 Comment
  HSC95782  Juncus howellii L. Ahart 1997-7-11 7748 Butte N of dirt rd. SE of Cold Creek, about 2 mi SW of Bald Mtn. 1220 Comment
  UC1438369  Juncus leiospermus var. ahartii Lowell Ahart 1978-5-1 1692 Butte Peter Ahart Ranch Honcut 50 Comment
  CHSC113236  Juncus leiospermus var. leiospermus Lowell Ahart 2014-4-20 19390 Butte About one mile northwest of the parking area on the west side of Cherokee Road, about 7 miles (air) north of Oroville. 366 Comment
  CHSC30361  Juncus leiospermus var. leiospermus J. D. Jokerst 1980-5-15 699 Butte Top of Cohasset Ridge ca 1/4 mi E of Cohasset Hwy. 487 Comment
  JEPS104276  Juncus leiospermus var. leiospermus Lowell Ahart 2003-4-15 10093 Butte High water line of vernal pool, ca 70-100 feet sw of section corner pipe, ca 1/8 mi sw of tall Digger Pine on s edge of Beatson Hollow, ca 1 1/4 mi nw of iron gate and fence, nw of Cherokee Rd, North Table M., ca 7 mi (air) n of Oroville. 299 Comment
  JEPS110150  Juncus leiospermus var. leiospermus Lowell Ahart 2006-5-3 12558 Butte On the sides of vernal pools, 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
  CHSC64243  Juncus nevadensis S. C. Morey 1983-8-3 692 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  CHSC28402  Juncus patens J. D. Jokerst 1979-10-12 377 Butte 1.0 mi. N.E. of end of Upper Park Rd., 50 met. E. of Big Chico Cr. 213 Comment
  CHSC50383  Juncus patens Vernon Oswald; Lowell Ahart 1990-5-26 4256 Butte Oroville Wildlife Area on the east side of the Feather River, Pacific Heights Rd entrance, south of Oroville. Bordering a dredge pond. 32 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
  CHSC105532  Juncus tenuis Lowell Ahart 2010-9-21 17225 Butte On damp bare disturbed soil, bottom and sides of a small wash, on the south side of a poor dirt road, about 1 mile (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1899 Comment
  CHSC61353  Juncus tenuis Lowell Ahart 1993-7-23 7099 Butte On the west side of Fall River, about 100 yards west of the bridge across Fall River, about 6 (air) miles northeast of Feather Falls. 1036 Comment
  RSA726661  Juncus triformis L. Ahart 2007-6-12 14075 Butte 50 yards south of Bean Creek Road, about 1/4 mile (air) southeast of Little Bald Rock, about 15 miles (air) northeast of Oroville. 975 Comment
  SEINET10472480  Juncus triformis Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4168 Butte T21N R6E nw sec 29. Along a small seep near Bean Creek Rd, ca. 1/4 mi s of Little Bald Rock, ca. 20 mi ne of Oroville. Yellow Pine Forest; 1000 m. 1000 Comment
  CHSC78337  Juncus trilocularis Lowell Ahart 2000-6-27 8512 Butte Big Bald Rock, about 3 miles (air) east of Madrone Lake, about 12 miles (air) northeast of Oroville. 993 Comment
  UCR261234  Juncus trilocularis Peter F. Zika 2011-7-6 25540 Butte Northern Sierra Nevada Range, highlands, above Oroville-Quincy Hwy, 0.8 road mi south of Stevens Ridge Road, 2.5 air mi northeast of Wild Yankee Hill 830 Comment
  CHSC32758  Juncus uncialis J. D. Jokerst 1981-4-10 1289 Butte Top of North Table Mt, area between Beatson Hollow and Coal Cr Canyon. 335 Comment
  UCD142845  Juncus uncialis Lowell Ahart 1974-4-11 363 Butte Peter Ahart Ranch, about 2.25 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  JEPS113760  Juncus usitatus Lowell Ahart 2007-8-19 14493 Butte About 2 1/4 miles (air) southeast of Honcut, about 13 miles (air) southeast of Oroville 49 Comment
  JEPS124333  Juncus usitatus Lowell Ahart 2015-10-16 20560 Butte About half way of and east of One Mile Pond, about 6 miles (air) east of Biggs. Comment
  SBBG121533  Juncus usitatus L. Ahart 2007-7-5 14249 Butte ca. 25 yards W of French Ave, on N side of Evans Reimer Rd, ca. 2 air mi SW of Gridley 24 Comment
  CAS-BOT-BC236761  Keckiella breviflora Lowell Ahart 1983-6-26 4131 Butte Along Ponderosa Way about 1/2 mile west of the East Fork of Canyon Creek, about 14 miles north-east of Oroville 500 Comment
  CAS-BOT-BC235679  Keckiella breviflora var. glabrisepala Mrs. J. H. Morrison 1932-5-15 s.n. Butte Durham Comment
  CHSC44721  Keckiella breviflora var. glabrisepala R. Banchero 1980-6-5 196 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
  CHSC89462  Keckiella corymbosa R. D. Fischer 2004-7-25 452 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located on Guardian Trail below Disk Golf Course, N end. 313 Comment
  CAS-BOT-BC237822  Keckiella lemmonii Carl B. Wolf 1941-7-23 11051 Butte Northern Sierra Nevada. 7/10 mi. NW. of Magalia at NW. side of Magalia Reservoir 731 Comment
  NY790318  Keckiella lemmonii A. A. Heller 1902-5-6 5471 Butte Berry Canyon (near Clear Creek) Comment
  CHSC43146  Kickxia elatine R. A. Schlising 1979-10-14 3512 Butte Along Sacramento River w of Chico, n of Chico Landing Site in Bidwell River State Park. Comment
  CHSC45267  Kochia scoparia Vernon Oswald 1988-9-21 3702 Butte Ranch Arroyo Chico. Pine Creek Landing, Bidwell River Park, w of Chico. 41 Comment
  CHSC46107  Koeleria macrantha J. D. Jokerst; R. A. Schlising 1982-6-4 1587 Butte Ridge, ca 100 meters below the road on top of the ridge. 853 Comment
  CHSC27155  Koelreuteria paniculata M. MacArthur 1968-6-18 222 Butte CSUC Campus. 60 ft. nw of Big Chico Creek on So-wil-len-no St., halfway between PSA and Dining Hall bridges. 60 Comment
  CHSC64038  Kyhosia bolanderi S. C. Morey 1983-8-4 719 Butte On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  CAS-BOT-BC274278  Lachnagrostis filiformis Lowell Ahart 1977-4-29 1520 Butte Peter Ahart Ranch, Honcut 50 Comment
  SEINET10839260  Lactuca saligna Lowell Ahart 1983-9-19 Ahart 4459 Butte T17N R1E section 14. Ca. 1/8 mi s of the Graylodge Wildlife Refuge headquarters, ca. 12 mi sw of Gridley. Valley Grassland; 35 m. 35 Comment
  CHSC30400  Lactuca serriola Diane H. Ikeda 1979-10-7 180 Butte Ca. 7.7 mi s of intersection of Ord Ferry Rd. and Dayton Rd.-Goodspeed Watt, on Goodspeed Watt. 28 Comment
  CHSC37390  Lactuca serriola R. A. Schlising 1980-8-31 3970 Butte Richvale Vernal Pools, 1/4 mi s of jct Hwy 162 to Oroville and Hwy 99, along latter and across from Thermalito Afterbay. Comment
  SEINET10971245  Lactuca serriola Mary Susan Taylor 1979-11-11 Taylor 2283 Butte T20 N R1E. Ca. 6 mi S of Chico, on W side of Goodspeed-Watt Road. With Jim Jokerst. 34 Comment
  CHSC26761  Lagophylla glandulosa M. S. Taylor; M. Hayes 1977-8-16 1438 Butte On both sides of Williams Rd, ca. 300 yds n of its jct with Pentz Rd, on Butte College Campus, ca. 15 mi s of Chico. 60 Comment
  CHSC28482  Lagophylla glandulosa Robert Schlising 1979-8-17 3466 Butte Richvale vernal pools, 1/4 mi s jct Hwys 162 to Oroville and 99, along the latter and across from Thermalito Afterbay. Comment
  CHSC74363  Lagophylla glandulosa B. Castro 1998-6-13 790 D Butte Ca 5.5 air mi SE of Town of Paradise, in bottom of unnamed canyon just S of Neal Road, ca 80 ft N of creek channel, directly under transmission lines. 85 Comment
  JEPS19936  Lagophylla glandulosa C. C. Parry 1881-11-1 Butte Chico Comment
  CAS-BOT-BC341311  Lagophylla glandulosa H. M. Hall 1914-8-1 9828 Butte Foothills of Sierra Nevada, near Bidwell's Bar, (Mt. Ida) Comment
  CAS-BOT-BC341317  Lagophylla glandulosa David D. Keck 1933-5-31 2409 Butte Bridge crossing Mud Creek, 2.9 miles west of Richardson Springs Comment
  HSC102686  Lamarckia aurea J. P. Smith 2013-5-5 13700 Butte Just west of the junction of Pentz Road with Durham-Pentz Road. 201 Comment
  CHSC11371  Lamium amplexicaule Lowell Ahart 1962-3-10 Butte Peter Ahart Ranch, Honcut. 45 Comment
  UCD125083  Lamium amplexicaule A. A. Heller 1920-4-10 13360 Butte Chico. Comment
  CHSC92563  Lasthenia californica L. P. Janeway 2005-3-10 8352 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  UC472261  Lasthenia californica subsp. californica Francis Ramaley 1917-5-6 11213 Butte near Chico Comment
  SEINET10475345  Lasthenia chrysostoma Mary Susan Taylor 1973-1 Taylor 4 Butte Upper Bidwell Park, Chico. Associates: Stipa pulchra, Lasthenia chrysostoma, Layia fremontii. 61 Comment
  UC195381  Lasthenia ferrisiae A. A. Heller 1914-5-13 11394 Butte between Durham and Nelson (in low field by creek); Butte Creek 53 Comment
  UCSC004635  Lasthenia fremontii Lowell Ahart 2005-5-11 11806 Butte T20N, R3E, northeast 1/4 Section 24, south of a small stream, open pasture field, a bout 1 mile south of Beatson Hollow, about 1.5 miles southwest of the poor dirt road off Cherokee Road, south part of North Table Mountain, about 7 milse (air) north of Oroville 281 Comment
  CAS-BOT-BC213338  Lathyrus jepsonii subsp. californicus H. E. Brown 1897-4-15 213 Butte Near Clear Creek Comment
  CHSC57375  Lathyrus jepsonii var. californicus Gail Bufton 1990-3-25 2 Butte S side Lindo Channel 40 ft w of intersection W. Lindo Ave and Black Oak Drive, Chico. 60 Comment
  UC725530  Lathyrus nevadensis var. nevadensis A. A. Heller 1939-4-10 15373 Butte Comment
  CAS-BOT-BC213287  Lathyrus sulphureus Lowell Ahart 1983-5-13 3989 Butte On the high banks of North Honcut Creek, Peter Ahart Ranch, about 1 1/4 miles north and 3 miles east of Honcut 50 Comment
  CHSC31837  Lathyrus sulphureus L. Ahart 1977-4-16 1308 Butte Peter Ahart Ranch, Honcut. Along the banks and sides of North Honcut Creek. 50 Comment
  CHSC863  Lathyrus sulphureus A. Koopman 1929-4-16 Butte U.S. Plant Introduction Garden. 60 Comment
  SEINET10452337  Lathyrus sulphureus Lowell Ahart 1983-5-28 Ahart 4025 Butte Along trail to Feather Falls, ca. 5 mi n of the town of Feather Falls. Yellow Pine Forest; 600 m. 600 Comment
  SEINET10452345  Lathyrus sulphureus Mary Susan Taylor 1980-4-16 Taylor 2497 A Butte T21N R4E s sec 17 Cherokee quad. Lake Oroville State Recreation Area, up to 0.5 mi SE of Parish Camp, just S of Lime Saddle Memorial Park, ca. 5 mi S of Paradise; Foothill Woodland. 305 Comment
  CHSC377  Layia platyglossa V. Holt 1938-3-28 Butte Near Chico. Comment
  CHSC52966  Lemna gibba Vernon H. Oswald 1991-2-23 4470 Butte Chico Sewer Treatment Plant on River Rd, ca. 4.5 mi w of Chico. In an irrigation ditch along the west boundary of the treatment plant. 39 Comment
  CHSC103707  Leontodon saxatilis subsp. longirostris Lowell Ahart 2010-6-1 16755 Butte On the south side of the Guardians Trail, about 150 yards east of the end of Centennial Avenue, Upper Bidwell Park, about 1/2 mile east of Chico Canyon Road. 125 Comment
  CHSC44373  Leontodon saxatilis subsp. longirostris Lowell Ahart 1988-6-23 6064 Butte Meadow, north of Forbestown Road, about 1 1/2 mile east of the intersection of Black Bart Road and Forbestown Road, about 1 mile west of Robinson Mill Road. 670 Comment
  CHSC750  Lepechinia calycina M. Roberson 1956-5-21 Butte SW of Paradise, along Skyway. 426 Comment
  RSA300968  Lepechinia calycina D. C. Michener 1982-7-28 4136 Butte Open foothill woodland 0.3 miles southeast of CA 32 on Santos Way, 8.0 miles northeast of jct of CA 32 & 99 near Chico. Comment
  RSA30425  Lepechinia calycina A. A. Heller 1915-5-28 11906 Butte Plentiful near Cohasset. Near the upper limit of the digger pine in the Sierra foothills. Comment
  CAS-BOT-BC89698  Lepidium latifolium Lowell Ahart 1982-7-10 3667 Butte Gray Lodge chek in station parking area, about 12 miles southwest of Gridley. 35 Comment
  UC856525  Lepidium nitidum A. A. Heller 1914-4-11 11274 Butte 8 mi n Oroville Comment
  CAS-BOT-BC89881  Lepidium nitidum Lowell Ahart 1979-4-14 s.n. Butte Peter Ahart Ranch. Honcut. 50 Comment
  CHSC65685  Lepidium strictum Vernon H. Oswald 1996-3-22 7248 Butte Sacramento Valley. Sacramento River National Wildlife Refuge, Llano Seco Unit. Sanctuary 1, NE corner of Tract 7.2. Ranch and levee roads at this location. 33 Comment
  CHSC34196  Leptochloa fusca subsp. fascicularis J. D. Jokerst; L. Ahart 1981-9-26 1496 Butte Ca 100 m E of Sacramento River at the Bidwell River State Park (Chico Landing) ca 5.0 mi W of Chico. Comment
  CHSC50811  Leptochloa fusca subsp. fascicularis Vernon Oswald; Lowell Ahart 1990-7-31 4413 Butte Lake Oroville at Vinton Gulch, ca. 0.7 mi (air) north of Cherokee. Bordering streamlet on the strand of the lake below the level of the cement ramp. 259 Comment
  SEINET10960779  Leptochloa fusca subsp. fascicularis A. Arthur Heller 1919-8-13 Heller 13354 Butte Rice field between Nelson and Richvale in moist adobe. Comment
  CHSC4156  Leptosiphon bicolor R. Carter 1966-4-11 346 Butte Found ca. 7 mi. E of Oroville at 6120 Woodleaf St. Rt., 300 yds W off Feathervale, 50 yds. W of house. 243 Comment
  CHSC29964  Leptosiphon bolanderi R. A. Schlising 1980-6-1 3609 Butte S of Paradise at Kunkle Reservoir, off Pentz-Magalia Hwy. 440 Comment
  CHSC2430  Leptosiphon filipes R. Carter 1965-6-17 236 Butte Found ca. 15 mi. NE of Oroville at Bald Rock Dome, 15 yds. E of Bean Creek Rd. on road that goes to the dome. 1051 Comment
  CHSC41368  Leptosiphon filipes B. Castro 1982-4-21 26 Butte Vernal pool area, 0.3 mi w of jct with Hwy 99 on Broyles Rd, ca 10 mi nw of Chico. 60 Comment
  CHSC62124  Leptosiphon filipes L. P. Janeway 1993-7-1 4416 Butte Plumas National Forest. North side of French Creek, 0.3 mi west of mouth of Ram Creek; along Rd 22N34 0.3 mi west of the 'low water crossing' of French Creek. Cutbank. 624 Comment
  CHSC62775  Leptosiphon filipes L. P. Janeway 1993-6-9 4376 Butte Plumas National Forest. Southeast of Swayne Hill, along Road 22N24 1.8 mi south of the 'low water crossing' of French Creek. East-facing slope above French Creek. 621 Comment
  CHSC88080  Leptosiphon filipes R. D. Fischer 2004-3-28 165 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located on the Disk Golf Course. 403 Comment
  CHSC58937  Leptosiphon harknessii Lowell Ahart 1992-7-29 6887 Butte Near Coon Hollow Creek, about 1 mile north-east of the Carr Mine, about 3/4 mile north-west of Lotts Lake. 1798 Comment
  CHSC31181  Lessingia nana M. S. Taylor; R. Schlising 1980-7-5 3059 Butte On w side of Hwy 32, ca. 0.1 mi s of Loma, up on edge of forest. 1127 Comment
  CHSC63698  Lessingia nemaclada Lowell Ahart 1994-10-8 7550 Butte Along North Rim Trail, near the double power lines, Bidwell Park, about 1 mile east of Chico. 152 Comment
  RSA79046  Lessingia nemaclada E. K. Balls, Percy C. Everett 1952-10-14 18215 Butte 2.4 miles southwest of Butte-Plumas county line on Highway 24 274 Comment
  SEINET10474779  Lessingia nemaclada Lowell Ahart, Peter Ahart 1983-6-30 Ahart 4179 Butte T22N R4E nw/nw sec 1. Ca. 1.5 mi ne of Concow Reservoir. Foothill Woodland; 550 m. NE of Oroville. 550 Comment
  POM253222  Lewisia rediviva A. A. Heller 1938-4-14 15029 Butte Treeless summit of Table Mtn. Comment
  CAS-BOT-BC444475  Lewisia triphylla L. P. Janeway; R. A. Schlising 1988-7-22 3050 Butte Upper Coon Hollow; just below saddle between Coon Hollow and Chips Creek. 1920 Comment
  RSA0116108  Ligusticum grayi Lowell A. Ahart 2014-7-13 19646 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC27675  Limnanthes alba Robert A. Schlising 1978-4-23 3223 Butte S of Cohasset along Cohasset Road, 4.9 mi NE of jct with Richardson Springs Road and 5.2 mi NE crossing of Mud Creek. On ridgetop. Comment
  RSA21487  Limnanthes alba Carl B. Wolf 1937-5-14 2814 Butte Sacramento Valley, 3-1/2 mi. E. or Richvale. 30 Comment
  CHSC48596  Limnanthes alba subsp. alba Vernon Oswald 1988-5-17 3311 Butte Forbestown Rd. 2.2 mi e of Oroville-Quincy Hwy (Hwy 162). Along the edge of the road. 426 Comment
  CHSC53960  Limnanthes alba subsp. alba Vernon H. Oswald 1991-4-24 4530 Butte Hicks Lane, ca. 2.0 mi north of Sycamore Creek, in north Chico. In a pasture. 70 Comment
  POM253064  Limnanthes douglasii A. A. Heller 1938-4-14 15033 Butte On the flatened treeless surface of Table Mountain. Upper Sonoran Life Zone. 610 Comment
  SEINET12183093  Limnanthes douglasii A. K. Bos 1978-1 4 Butte Along Skyway at intersection of Skyway and Bruce Rd., 3.5 mi ESE of Chico Comment
  UC1586572  Limnanthes douglasii subsp. douglasii Lowell Ahart 1991-5-2 6648 Butte about 2 1/4 mi n and 1/2 mi e Honcut (about 12 mi s of Oroville); Peter Ahart Ranch 36 Comment
  CHSC12114  Limnanthes douglasii subsp. rosea M. F. Smith 1972-3-7 3 Butte On Skyway about 500 ft. east of Notre Dame Ave. 60 Comment
  CHSC52410  Limnanthes douglasii subsp. rosea William Nielsen 1984-4-15 5 Butte Table Mtn, ca 7 km WNW of jct of hwys 149 and 70. 402 Comment
  POM86188  Limnanthes douglasii subsp. rosea R. M. Austin 1883-05 s.n. Butte Mesa. Comment
  UCD71183  Limnanthes floccosa M. Plotkin 1997-3-21 MSP 11 a Butte Chico, at intersection of Cohasset highway and Ryan Road (Ryan Road ends). 91 Comment
  UCD116433  Limnanthes floccosa subsp. floccosa Jeff Dole 1986-4-27 s.n. Butte 1 mile north of Cayton Creek. Comment
  CHSC113244  Limosella acaulis Lowell Ahart 2014-4-26 19413 Butte Sides of a cleaned ditch, on the south side of Butte City Highway (Highway 162), collected from the railroad to the east about 200 yards, east of the Rice Experimental Station. 30 Comment
  SEINET9369866  Linanthus filipes Unknown 1996-7-9 13171 Butte Plumas National Forest Comment
  RSA0096837  Linanthus filipes H. F. Copeland 1929-5-4 1124 Butte Canyon of Chico Creek. Comment
  CDA6347  Linaria genistifolia subsp. dalmatica T. C. Fuller 1962-7-12 9163 Butte East side of Pentz-Magalia Road just south of Merrill Road, 1.2 miles south of Magalia. 0 Comment
  UCD19366  Lindernia dubia E. Dean; with J. Ditomaso and E. Healy 2001-8-20 857 Butte Biggs UC Field Station. North of town of Biggs, W of jct of Hwys 99 and 162. Just S of main research buildings at field station, W of RR tracks and ca. 2 east-west running dirt roads S of buildings. Along east-west running dirt road. 30 Comment
  HSC93349  Lindernia dubia L. Ahart 1995-7-15 7595 Butte Small wash, Peter Ahart Ranch, 1.5 mi. N and 0.75 mi. E of Honcut, 12 mi. S of Oroville 37 Comment
  CHSC40896  Lindernia dubia var. anagallidea Lowell Ahart 1985-11-5 5226 Butte 90 feet below the high water line of Lake Oroville, on the south side of the South Fork of the Feather River, where Sucker Creek flows into the river, about 1/2 mile wes of the Ponderosa Dam. 274 Comment
  CHSC43147  Lindernia dubia var. anagallidea Robert Banchero 1979-9-23 37 Butte SW of Chico, just e of Sacramento River. 30 Comment
  CHSC42723  Linnaea borealis var. longiflora Lowell Ahart 1987-5-22 5680 Butte About 1/8 mile north-east of Camp 18, about 61/2 miles north-east of Feather Falls. 1219 Comment
  CHSC112925  Linum bienne B. Castro; Sabrina Bell 2012-6-14 1929 Butte Sacramento Valley. 1.0 air mi E of Hwy 99 and 0.9 mi S of Hwy 162E on peninsula at E edge of Thermalito Afterbay. 42 Comment
  SEINET12186146  Linum lewisii Unknown 1985-1 4993 Butte 1/8 mi E of the dirt rd, about 1.5 mi NE of Concow of Reservoir 732 Comment
  SEINET12186044  Linum micranthum Unknown 1983-1 4286 Butte near Humboldt Rd., 3 mi SW of Butte Meadows, Yellow Pine Forest 1450 Comment
  CHSC51023  Lipocarpha Lowell Ahart 1990-7-15 6566 Butte Below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/4 mile north-west of the Enterprise Bridge across Lake Oroville. 243 Comment
  CHSC55620  Lipocarpha L. P. Janeway 1987-6-5 2142 Butte Border area of small pool, near confluence of Ram Creek and French Creek. 609 Comment
  SEINET10533521  Liquidambar styraciflua Mary Susan Taylor 1975-5-6 Taylor 563 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
  CHSC61358  Listera convallarioides Lowell Ahart 1993-7-31 7134 Butte Along a small stream that flows into Big Kimshew Creek, on the east side of the dirt road, about 1 1/2 miles south-east of Bald Mountain, north-east of Stirling City. 1493 Comment
  UCSC000178  Lithocarpus densiflorus F. W. Foxworthy 1936-8-19 s.n. Butte forty miles east of Chico 1097 Comment
  CAS-BOT-BC36173  Lithocarpus densiflorus var. densiflorus Mary E. Wall 1935-11-10 s.n. Butte Magalia Comment
  CHSC1651  Lithophragma bolanderi E. Canfield 1904-4-9 Butte Wood adjoining Hooker Oak field. 76 Comment
  CAS-BOT-BC435491  Lithophragma glabrum Lowell Ahart 1988-3-28 5950 Butte About 1/10 mile S of Lumpkin Ridge Road, about 1 1/2 miles E of Camp 18, about 8 miles E of Feather Falls 1280 Comment
  CHSC2363  Lithospermum californicum R. Carter 1965-5-1 194 Butte Found on Bean Creek Rd., 2 mi. SE of intersection with Bald Rock Rd., on E bank above road. 1005 Comment
  CHSC27840  Lithospermum californicum T. B. Devine 1977-6-5 426 Butte Beside Humbug Rd. Next to PG and E Flume. 853 Comment
  UCR64605  Lithospermum californicum H. F. Copeland 1931-6-11 1531 Butte Jonesville 1677 Comment
  JEPS107767  Logfia gallica Lowell Ahart 2005-5-7 11787 Butte On the east side of North Honcut Creek, Peter Ahart Ranch, about 1 1/4 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville 48 Comment
  JEPS115281  Lolium multiflorum Lowell Ahart 2009-5-8 15669 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
  SEINET10591941  Lolium multiflorum Madsen 1970-4-5 Madsen 28 Butte On N side of creek, ca 300 yards N of Honeyrun Road, 1.5 miles NE of Covered Bridge at intersection of Humbug and Honeyrun Roads, E of Chico. Soil of valley adobe overlying rocks. Associate: Avena fatua. 229 Comment
  CHSC82365  Lolium perenne Lowell Ahart 2002-6-2 9675 Butte Drainage, east of the large exposed drain pipe, road cut on the south side of Lumpkin Road, about 1 mile northeast of the intersection of Lumpkin Road and Forbestown Road, about 12 miles (air) east of Oroville. 548 Comment
  RSA754796  Lolium perenne subsp. multiflorum L. Ahart 2009-5-8 15669 Butte S side of gravel road, about 10 yards E of Cedar Grove Parking Area in Lower Bidwell Park, Chico 67 Comment
  CHSC29370  Lomatium caruifolium var. denticulatum Robert Schlising 1979-4-21 3371 Butte Richvale vernal pools, 1/4 mi s of jct Hwy 162 (e to Oroville ) and Hwy 99, along latter and across from Thermalito Afterbay. Comment
  CHSC31864  Lomatium caruifolium var. denticulatum L. Ahart 1979-5-12 1876 Butte Peter Ahart Ranch, Honcut. 50 Comment
  UC726873  Lomatium caruifolium var. denticulatum A. A. Heller 1941-4-14 16065 Butte 4 mi. n. Biggs (along U.S. Hwy. 99E) Comment
  UC195446  Lomatium dasycarpum subsp. tomentosum A. A. Heller 1914-4-13 11259 Butte 8 mi. n. Oroville Comment
  CHSC42609  Lomatium dissectum var. multifidum Vernon Oswald 1985-5-13 1757 Butte On the W side of Hwy 32 at Crown Pt. Rd. 597 Comment
  CHSC42613  Lomatium macrocarpum Vernon Oswald 1985-4-16 1720 Butte Upper Bidwell Park, Chico, on the slope bordering the s side of the Golf Course. Comment
  JEPS14508  Lomatium marginatum var. marginatum Rimo Bacigalupi with G. T. Robbins and F. Chisaki 1956-4-19 5612 Butte 0.7 mi S of Oregon City (along Oregon gulch road) Comment
  CHSC101660  Lomatium utriculatum Lowell Ahart 2009-4-26 15646 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, on the east side of Guardians Trail, about 200 yards southwest of Pine Trail. 381 Comment
  CHSC70791  Lonicera hispidula H. Durio; B. Castro, L. Gehrung 1995-7-24 Butte Ca. 1.5 air mi A of Hungry Hunt Peak, and 1.5 mi # of Hwy 70, ca 0.2 mi s on 'A' Spur off USFS Rd 22N84. 914 Comment
  CAS-BOT-BC240685  Lonicera interrupta A. A. Heller 1914-5-18 11408 Butte Collected near Hog Spring on the Chico-Butte Meadow road. Between Chico and Forest Ranch, 8 miles from Chico Comment
  CAS-BOT-BC240686  Lonicera interrupta A. A. Heller; H. E. Brown 1902-5-14 5551 Butte Berry Canyon (Near Clear Creek) Comment
  CAS-BOT-BC240690  Lonicera interrupta Mary E. Wall 1936-6-1 s.n. Butte Paradise Comment
  UCD107081  Lopezia racemosa subsp. racemosa N. Adams 1931-2-28 s.n. Butte Chico. Comment
  SEINET10451958  Lotus argophyllus var. fremontii Mary Susan Taylor 1980-5-27 Taylor 2665 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
  UC204729  Lotus humistratus A. A. Heller 1914-5-8 11377 Butte the Clear Creek to Paradise grade Comment
  SFV11544  Lotus humistratus M. L. Vincent 1960-4-15 s. n. Butte Near Feather River Bridge, below Paradise. Comment
  UC176294  Lotus purshianus var. purshianus A. A. Heller 1913-9-12 11132 Butte on Big Chico Creek Chico, Big Chico Creek Comment
  UC1562369  Lotus scoparius Lowell Ahart 1990-5-21 6474 Butte 4.5 mi sw Oroville (0.25 mi s of the Feather River, about 0.4 mi w of Pacific Heights Road) 30 Comment
  SBBG128781  Ludwigia decurrens E. Padgett 2014-9-12 Butte Sacramento Valley, agricultural fields between Richvale and Hwy 162, E of Midway, next to rice fields 26 Comment
  JEPS13154  Ludwigia palustris W. L. Jepson 1939-8-17 19457 Butte Feather R. bottom near Oroville; Feather R. 45 Comment
  CHSC25320  Ludwigia peploides subsp. peploides Hayes; Warner, Schlising 1977-8-23 46 Butte Found in canal at Gray Lodge State Wildlife Refuge. 50 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
  RSA0036525  Lupinus adsurgens Daisie Huang 2006-8-3 06080302 Butte Skyway Rd. north of Stirling City. Comment
  SEINET194860  Lupinus albicaulis A. A. Heller 1941-5-22 16138 Butte About a half a mile west of Jarboe Pass on State Highway 24, on the edge of a wooded slopes Comment
  CAS-BOT-BC201350  Lupinus albifrons var. albifrons L. S. Rose 1931-4-11 s.n. Butte In outskirts of Oroville Comment
  CAS-BOT-BC196255  Lupinus albifrons var. eminens A. A. Heller 1938-4-23 15050 Butte Along Highway #24, near the junction with the Yankee Hill road Comment
  JEPS97371  Lupinus angustiflorus Vernon H. Oswald 1995-8-2 7171 Butte T26N R5E ca. center NW1/4 Sec. 4, 6100 ft, High Cascade Range, Red Fir Forest. Scotts John Rd. (Forest Rd. 26N11) 2.2 mi N of Jonesville Rd. (Forest Rd. 26N27) 1859 Comment
  SD2410  Lupinus angustiflorus E. B. Copeland 1929-7-17 378 Butte Above Jonesville, on porous soil in full sunshine 2000 Comment
  CHSC99569  Lupinus apertus L. P. Janeway 2008-5-26 9393 Butte Northern High Sierra Nevada. Along top of low ridge just west of the saddle at head of Empire Creek, about 1.6 km west of Flea Valley. 1097 Comment
  CHSC31938  Lupinus arbustus J. D. Jokerst; L. Ahart, M. S. Taylor 1980-8-2 1031 Butte Humboldt Peak, ca. 1/4 mi. below and E of summit adjacent to large mudlflow, northern most portion of county. 1828 Comment
  CHSC51045  Lupinus arbustus J. D. Jokerst 1985-4-22 2261 Butte Top of Cohasset Ridge in community of Cohasset, SE of Cohasset Hwy and Cave Creek. 609 Comment
  UCD106673  Lupinus arbustus A. A. Heller 1917-7-29 12853 Butte Summit above Jonesville. 2133 Comment
  SEINET10452029  Lupinus bicolor subsp. pipersmithii Mary Susan Taylor, K. Tharp 1982-4-8 Taylor 4291 Butte T19N R4E border sac 1/2. Oroville quad. Along both side of Oroville Dam Blvd (Alt. 40), ca. 1.5 mi s of Oroville Dam Visitors Center, Oroville. Foothill Woodland; 800 ft. 244 Comment
  CHSC26255  Lupinus bicolor var. tridentatus John Steiner 1977-4-23 58 Butte Growing adjacent to s bank of Chico Creek at e end of Chico Canyon Rd. 65 Comment
  SEINET10450558  Lupinus formosus Lowell Ahart 1984-6-8 Ahart 4682 Butte Along the edge of the dirt road that goes to Lumpkin Ridge Rd, ca. 6 mi NE of Ponderosa Dam, ca. 4 mi SE of Feather Falls; Yellow Pine Forest; 550 m. 550 Comment
  SEINET10452088  Lupinus latifolius var. columbianus Heidi H. Schmidt 1993-6-15 Schmidt 860 Butte Plumas National Forest on state road 23N06 1.5 miles N of the junction with highway 70. Mixed hardwood forest. 880 Comment
  CHSC34684  Lupinus nanus M. S. Taylor 1981-5-5 3601 Butte E side of Lumpkin-LaPorte Rd, 1 mi n of Enterprise bridge over south fork Feather River, ca. 10 air mi e of Oroville. 457 Comment
  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
  CHSC3935  Lupinus nanus var. apricus J. Senter 1967-4-10 17 Butte Located on Skyway turnout 4.5 mi. E. of Hwy. 99E. 396 Comment
  CHSC104791  Lupinus nanus var. vallicola L. P. Janeway 2010-6-19 10024 Butte Northern High Sierra Nevada. About 1.2 km south of Bald Rock Dome near a saddle along the ridge between Middle Fork Feather River and Bean Creek drainage; along Bean Creek Road at spur road to Dome Trail trailhead. 868 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
  RSA695519  Lupinus pachylobus L. Ahart 2003-4-8 10050 Butte About 1/8 mi NW of the iron gate and fence, NW of Cherokee Rd, North Table mountain, about 7 mi (air) N of Oroville. 327 Comment
  UC75250  Lupinus pachylobus Copeland 1903-4-10 3043 Butte Chico 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
  SEINET3449375  Lupinus polycarpus Unknown 2003-4-8 10050 Butte Oroville, Oroville, about 7 air miles north, North Table Mountain, northwest of Cherokee Road, about 0.25 miles northwest of the iron gate and fence 320 Comment
  POM276488  Lupinus polyphyllus subsp. superbus Lyman D. Benson 3958 Butte First Summit, Oroville-Quincy, Sierra Nevada, Feather River Watershed 1829 Comment
  SEINET194919  Lupinus rubricaulis A. A. Heller 1942-5-18 16478 Butte About a valley oak tree in a grassy field a short distance west of the Hooker oak, east of Chico. Comment
  SEINET10452163  Lupinus vallicola Mary Susan Taylor 1981-5-14 Taylor 3717 Butte T22N R6E se sec 17, Pulga SE quad. N side of 23N00.2, 2.9 mi SW of Merrimac on Oroville-Quincy Hwy. Decomposed granite, in partial shade. 3200 ft. 975 Comment
  SEINET10491007  Lupinus vallicola subsp. vallicola Taylor 1981-5-14 Taylor 3717 Butte Pulga se quad. N side of 23noo.2, 2.5 mi sw of merrimac on oroville-quincy Hwy. Corolla blue and white. Yellow pine forest. Associates: lathyrus Sulphureus, galium bolanderi, arbutus menziesii. 975 Comment
  CHSC52704  Luzula cascadensis L. P. Janeway 1987-5-28 2107 Butte Spring at the Soapstone Mine; near 4-trees Road 1.0 mi west of OroQuincy Hwy. 1493 Comment
  CDA34742  Luzula comosa var. comosa L. Ahart 2010-9-28 17260 Butte On the south edge of a 10 acre meadow, about 100 yards east of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. Comment
  RSA0116259  Luzula comosa var. comosa Lowell A. Ahart 2014-7-10 19634 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1665 Comment
  RSA769595  Luzula comosa var. comosa L. Ahart 2010-9-28 17260 Butte West edge of 10 acre meadow, about 50 yards east of the poor dirt road, about 20 yards west of Big Kimshew Creek, about 1.5 air miles northeast of Jones Meadow, about 2.5 air miles southeast of Philbrook Reservoir. 1887 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
  JEPS110179  Luzula macrantha Lowell Ahart 2006-4-28 12547 Butte South of the dirt road and south of a small stream, a part of the drainage into Beatson Hollow, about 3/4 mile northwest of the Iron Gate along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 318 Comment
  CHSC34819  Lychnis coronaria M. S. Taylor 1981-5-21 3785 Butte In Mayaro, ca. 2 mi ne of Pulga on Hwy 70. 487 Comment
  CHSC28802  Lythrum hyssopifolia J. D. Jokerst 1979-7-6 404 Butte Top of north Table Mt, ca. 100 m north of Cherokee Rd. +/- nw of intersection of Cherokee Rd. Comment
  JEPS120840  Lythrum hyssopifolia Lowell Ahart 2013-7-9 18833 Butte South side of North Honcut Creek, west of the steel power line, about 2 air miles northeast of Honcut, about 13 air miles southeast of Oroville. Comment
  SEINET7073010  Lythrum hyssopifolia A. G. Vestal 1963-5-31 s.n. Butte About 8.2 miles north-northwest of Oroville on Route 149. UTM Zone 10, 614599mE, 4384406mN. Coordinate datum: NAD27. Comment
  CHSC78256  Lythrum salicaria Lowell Ahart 2000-7-2 8551 Butte Wet area on the east side of Highway 70, a little north of Garden Drive, north of Thermalito, about 1 1/2 miles north of Oroville. 73 Comment
  RSA0016015  Lythrum salicaria L. P. Janeway 2006-7-19 8819 Butte Sacramento Valley, Shallow arm of Thermalito Afterbay, 150 m east of Wilbur Road, 2.1 km south of Hwy 162. 41 Comment
  UC1562302 Image available Lythrum salicaria Lowell Ahart 1990-7-22 6575 Butte Palermo, on bottom of Wyman Ravine, on e side of Lincoln Boulevard Wyman Ravine; Palermo, , Lincoln Boulevard 45 Comment
  CAS-BOT-BC342641  Madia citrigracilis Bruce G. Baldwin; Vern Oswald 1988-6-16 716 Butte Near Pulga, along Camp Creek Road 512 Comment
  CHSC54861  Madia citrigracilis Vernon H. Oswald 1991-8-26 4848 Butte Chico Meadows on the southeast side of Big Chico Creek at the Scout Camp, ca. 1 mile north of Butte Meadows. Upper border of the meadow on the east side of the 'swimming hole. 1292 Comment
  CAS-BOT-BC342719  Madia elegans M. S. Taylor 1982-6-24 4732 Butte Around large landing on saddle of ridge se of Flea Mt, n of Pulga, ca. 5 air mi e of Magalia 1097 Comment
  SEINET10474802  Madia elegans subsp. densifolia Mary Susan Taylor 1979-8-4 Taylor 2172 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
  CHSC36840  Madia elegans subsp. elegans M. S. Taylor 1982-6-24 4732 Butte Around large landing on saddle of ridge se of Flea Mt, n of Pulga, ca. 5 air mi e of Magalia. 1097 Comment
  RSA691019  Madia elegans subsp. elegans L. Ahart 2003-6-30 10321 Butte North of small stream, on the east side of Ponderosa Way, about 2.5 miles (by road) southwest of the Ponderosa Dam, about 2 miles (air) northwest of Forbestown 578 Comment
  CAS-BOT-BC344314  Madia exigua Lowell Ahart 1983-6-12 4050 Butte About 1 mile south of Crystal Hill, near Oregon Gulch, near Lake Oroville, about 7 miles south-west of Feather Falls 425 Comment
  CHSC103979  Madia exigua Lowell Ahart 2010-5-7 16620 Butte On the north side of a trail, west of disk golf area, on a ridge about 350 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 353 Comment
  CHSC25449  Madia glomerata Marc Hayes; Warner 1977-9-11 70 Butte Along road to Butte Meadows, exactly 5.8 mi from the turn to Butte Meadows on Hwy 32 onto Humboldt Road. 1127 Comment
  CAS-BOT-BC342955  Madia gracilis Clarence R. Quick 1963-7-16 63 -41 Butte Section Corner Meadow, east of Pulga. Feather River canyon 1463 Comment
  CAS-BOT-BC343278  Madia gracilis John Thomas Howell 1962-6-15 37479 Butte Magalia 731 Comment
  CAS-BOT-BC342956  Madia gracilis Clarence R. Quick 1952-9-7 52 -317 Butte Fire trail just south of Coyote Gap (east of Pulga) Comment
  CAS-BOT-BC342961  Madia gracilis A. A. Heller 1914-8-6 11643 Butte About Chico Meadows 1219 Comment
  SEINET10474815  Madia gracilis Mary Susan Taylor 1980-5-31 Taylor 2752 Butte T22N R4E sw sec 31. Kunkle Reservoir, on E side of Pentz-Magalia Hwy, ca. 2 mi SE of Paradise. With R.A. Schlising and L. Ahart. 442 Comment
  CHSC90838  Madia subspicata Lowell Ahart 2005-5-7 11788 Butte On the east side of North Honcut Creek, Peter Ahart Ranch, about 1 1/4 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 48 Comment
  CHSC108791  Magnolia Lowell Ahart; John Dittes, Josephine Guardino 2012-4-6 17810 Butte On the north side of Big Chico Creek, Lost Park in Bidwell Park, city of Chico. 60 Comment
  POM182758  Maianthemum racemosum subsp. amplexicaule Kate Conger 1907-1 s.n. Butte Brush Creek Comment
  CAS-BOT-BC510730  Maianthemum racemosum subsp. amplexicaule H. F. Copeland 1916-11-29 1236 Butte Woods near Butte Creek. Comment
  JEPS106172  Malacothrix floccifera Lowell Ahart 2004-6-22 11113 Butte Road cut, on the north side of Doe Mill Road, about 1/12 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
  RSA700214  Malacothrix floccifera L. Ahart 2004-6-22 11113 Butte On the north side of Doe Mill Road, about 1/12 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
  UC572335  Malacothrix floccifera P. L. Johannsen 1936-7-22 962 Butte 1.5 mi sw Head of Bottle Creek; Lassen National Forest, Paynes Creek Quad. 1432 Comment
  CHSC66079  Malva nicaeensis Vernon H. Oswald 1996-5-22 7626 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife parcel between 7 Mile Lane and the Sacramento River. 28 Comment
  POM85083  Malva nicaeensis C. C. Bruce 1897-04 1919 Butte [name of locality illegible] Comment
  CHSC109095  Malva parviflora Lowell Ahart; John Dittes, Josephine Guardino 2012-4-6 17815 Butte On the north side of Big Chico Creek, Lost Park in Bidwell Park, city of Chico. 60 Comment
  SEINET11985464  Marah fabacea J. K. Johnson 1978-1 10 Butte E side of Sacramento River, 50 yds N of Big Chico Creek, 6 mi WSW of Chico 40 Comment
  CHSC26767  Marah fabacea var. agrestis P. Moyer 1972-3-2 91 Butte N end of L. S. Bridge, on CSUC campus. 60 Comment
  CHSC34446  Marah fabacea var. agrestis R. E. Preston 1979-4-19 15 Butte 75 yds nw of Singer Creek, northernmost Butte County. 56 Comment
  CHSC26877  Marah watsonii Robert A. Schlising 1963-5-4 2557 Butte 0.7 miles southwest of junction with Skyway Road, along Honeyrun Road (in city of Paradise). Comment
  UC196259  Marah watsonii A. A. Heller 1914-4-27 11328 Butte 8 mi n Oroville Comment
  CHSC38473  Marrubium vulgare Vernon Oswald 1983-5-2 420 Butte Upper Bidwell Park, Chico, along the s edge of the Golf Course. 91 Comment
  SEINET10498135  Marrubium vulgare Mary Susan Taylor 1975-2-16 Taylor 386 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
  CHSC30714  Marsilea vestita M. S. Taylor 1980-7-6 3051 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
  CHSC90951  Matricaria discoidea Lowell Ahart 2005-4-18 11731 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
  JEPS107275  Matricaria discoidea Lowell Ahart 2005-4-18 11731 Butte Overflow area on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico 25 Comment
  CAS-BOT-BC422640  Meconella californica W. R. Ernst 1958-3-27 215 Butte Above the Butte Creek Bridge on the Honeyrun Road to Paradise (east of Chico). 152 Comment
  SEINET12155157  Medicago arabica P. L. Ricker 1912-1 3956 Butte Chico Comment
  UCD106764  Medicago arabica P. B. Kennedy 1914-5-8 s.n. Butte Chico. Comment
  SEINET12155170  Medicago hispida P. L. Ricker 1912-1 3963 Butte Chico Comment
  JEPS119788  Medicago lupulina Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18000 Butte South of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  CHSC103684  Medicago polymorpha Lowell Ahart 2010-4-30 16589 Butte Area of erosion control, disk golf area, on a ridge about 200 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 369 Comment
  CHSC945  Medicago polymorpha A. Koopman 1929-3-5 Butte CSC Campus. 57 Comment
  CHSC97690  Medicago polymorpha Lowell Ahart 2007-11-3 14571 Butte Along a very small stream, below the high water line of Lake Oroville, about 3/4 mile east of the Power House below Kunckle Reservoir, about 1 1/4 miles north of the Lime Saddle Campground, about 5 miles (air) southeast of Paradise. 259 Comment
  CDA38818  Medicago praecox L. Ahart 2012-4-9 17836 Butte Around the edged of a small vernal pool, west of the South Rim Trail, south part of Upper Bidwell Park, about 2 1/4 miles (air) northeast of Chico. Comment
  RSA0060800  Medicago praecox Lowell A. Ahart 2012-4-9 17836 Butte West of South Rim Trail, south part of Upper Bidwell Park, about 2.25 miles (air) northeast of Chico. 142 Comment
  UCD106751  Medicago rigidula P. B. Kennedy 1914-5-8 s.n. Butte Chico. Comment
  SEINET12155151  Medicago scutellata P. L. Ricker 1912-1 3966 Butte Chico Comment
  CAS-BOT-BC269388  Melica californica L. W. Swift 1934-5-7 102 Butte Outside forest 731 Comment
  SEINET10559685  Melica californica var. nevadensis A. Arthur Heller 1915-4-20 Heller 11860 Butte 7 miles below Centerville in the Sierra foothills, where it is locally plentiful on the banks of Butte Creek. In the digger pine and oak belt. 76 Comment
  CHSC60592  Melica geyeri Vernon H. Oswald; Lowell Ahart 1993-4-19 5282 Butte Rattlesnake Creek Trail between Jordan Hill Rd. and Sawmill Pk. Lookout, ENE of Magalia. Along the lower part of the trail between the creek and the lookout. 719 Comment
  SEINET10508161  Melica harfordii Lowell Ahart, Peter Ahart 1983-7-24 Ahart 4216 Butte T20N R7E ne sec 32. At the Forbestown Reservoir, ca. 5 mi ne of Forbestown. Yellow Pine Forest; 450 m. 450 Comment
  JEPS106264  Melica subulata Lowell Ahart 2004-7-23 11300 Butte On the east side of the road, north of the West Branch Campground, south of the Bridge across the West Branch of the Feather River, about 1 1/2 miles (air) west of Philbrook Reservoir Dam, about 3 3/4 miles (air) southeast of Butte Meadows 1456 Comment
  SEINET10959868  Melica subulata Edwin B. Copel 1929-7-16 Copeland 338 Butte Jonesville, Butte County. 1550 Comment
  CHSC99646  Melica torreyana H. Koeth 2007-5-2 Butte Big Chico Creek Ecological Reserve, Chico (Forest Ranch). 471 Comment
  CHSC31836  Melilotus albus L. Ahart 1978-7-15 1788 Butte Along edges of North Honcut Creek, Peter Ahart Ranch, Honcut. 50 Comment
  CHSC102727  Melissa officinalis Lowell Ahart 2009-6-19 15949 Butte On the east side of Big Chico Creek, southwest of the meadow, about 30 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 209 Comment
  CHSC52227  Mentha X gracilis L. P. Janeway 1988-5-30 2719 Butte Cyn of Big Chico Cr; upper Bidwell Park, 2.8 mi along Upper Park Rd from Wildwood Ave and ca 1/4 mi NW up the slope; also ca 3/4 mi NE of the power lines. 152 Comment
  SEINET10498159  Mentha arvensis Mary Susan Taylor 1975-10-4 Taylor 957 Butte E side of Kunkle Reservoir, ca. 1/4 mi E of Pentz-Magalia Hwy, ca. 1 mi S of Paradise; open to sun. 610 Comment
  CHSC52226  Mentha canadensis L. P. Janeway; Heidi Wienert, Scott George 1988-7-27 3094 Butte W side of Murphy Slough, across from Golden State Island. 38 Comment
  CHSC43838  Mentha pulegium B. Castro 1987-9-8 215 Butte E of the lodge at Richardson Springs resort. 182 Comment
  CHSC94182  Mentha pulegium Lowell Ahart 2006-7-4 12913 Butte Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 29 Comment
  JEPS113501  Mentha pulegium Lowell Ahart 2007-7-8 14274 Butte On the north side of North Honcut Creek, Peter Ahart Ranch, about 3/4 miles north and 2 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville 45 Comment
  CHSC102979  Mentha spicata var. spicata Lowell Ahart 2009-8-13 16279 Butte Near Big Chico Creek, about 150 yards east of the diversion structure that controls Mud Creek Diversion and Lindo Channel, Chico. 68 Comment
  RSA795243  Mentha spicata var. spicata L. Ahart 2011-8-17 17624 Butte About 20 yards south of the trail, south of the crossing and on the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 0.75 air miles west of Highway 32, about 10 miles northeast of Chico. 204 Comment
  CHSC34447  Micranthes californica R. E. Preston 1982-2-4 161 Butte Top of cliffs, s rim of Butte Creek Canyon above Honeyrun Covered Bridge, ca. 7.5 mi e of Chico. 289 Comment
  CHSC7051  Micranthes integrifolia J. G. Moore 1969-2-25 112 Butte In Upper Bidwell Park 200 yds. w of rifle range and 100 yds. n of golf course entrance. 67 Comment
  CHSC25283  Micranthes oregana M. S. Taylor 1977-7-15 1406 Butte In ne corner of Butte Meadows, ca. 20 mi ne of Chico. 1326 Comment
  SEINET10871997  Micropus californicus Mary Susan Taylor 1981-5-21 Taylor 3775 Butte T22N R4E nw/nw sec l and ne/ne sec 2, Pulga SW quad. S side of Concow Rd, ca. 0.5 mi S of its jct with Ponderosa Way (Rim Rd), ca. 20 air mi N of Oroville. In reddish weathered serpentine; 2800 ft. 853 Comment
  CHSC33366  Micropus californicus var. californicus Steven Azevedo 1980-4-16 18 Butte S edge of Mudd Creek, 1 mi. e of Richardson Spring. 243 Comment
  CHSC56091  Micropus californicus var. californicus R. L. Ondricek-Fallsheer 1983-5-7 166 Butte On rim of cliff, tip of Flatiron Ridge; ca 3 1/2 mi west-southwest of Paradise. 152 Comment
  HSC23411  Micropus californicus var. californicus Carolyn Fante 1971-4-18 2 Butte N side of Pentz Rd. 76 Comment
  CAS-BOT-BC348699  Microseris acuminata Lowell Ahart 1979-5-11 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  CHSC26734  Microseris acuminata M. S. Taylor; M. Hayes 1978-4-14 1562 Butte On e side of Williams Rd, ca. 1/4 mi n of Pentz Rd, ca. 15 mi s of Chico. 30 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
  CHSC54092  Microseris sylvatica Vernon H. Oswald; Lowell Ahart 1991-5-13 4588 Butte Dan Beebe Trail in Lake Oroville Recreation Area, between Canyon Drive and Oroville Dam Blvd East (opposite the spillway). 121 Comment
  CHSC45354  Microsteris gracilis Vernon Oswald 1987-4-16 2332 Butte Butte Creek Reserve on the n side of Butte Creek e of the Skyway. 74 Comment
  CHSC47038  Microsteris gracilis R. A. Schlising; L. Janeway, B. Castro 1988-7-23 4639 Butte Along Scotts John Creek, ca 2.6 miles N or road from Jonesville to Humbug Summit. 1889 Comment
  CHSC9698  Mimulus Nancy Mosman 1971-7-3 52 Butte In meadow along n side of Humboldt Road ca. 0.2 mi e of Butte Meadow Ranger Station. 1371 Comment
  UC767436  Mimulus bicolor R. F. Hoover 1936-5-21 1161 Butte 7 mi n Chico Comment
  UCD111670  Mimulus bicolor Christopher Mallek 2008-1 HW1- 10 Butte Magalia. 756 Comment
  POM43819  Mimulus bicolor C. C. Bruce 1897-05 2107 Butte Forest- Ranch. Comment
  SEINET10570191  Mimulus bicolor Mary Susan Taylor 1980-4-27 Taylor 2551 Butte T23N R3E west center border sec 26. Paradise quad. On N side of Ponderosa Way Road, ca. 0.5 mi E of Nimshew Rd, ca. 1 mi S of Nimshew; in open vernally dry embankment. With J.D. Jokerst. 610 Comment
  SEINET12319564  Mimulus bifidus Unknown 1978-1 17 Butte ca 4 mi SE Concow Reservoir, 13.5 mi NE of Oroville, 0.7 mi S on Dark Canyon Rd, E side of road 549 Comment
  POM173673  Mimulus breweri H. F. Copeland 1928-8-17 958 Butte Jonesville. Comment
  UC426955  Mimulus breweri E. B. Copeland 1930-6-28 461 Butte Scotch John meadow Jonesville 1700 Comment
  JEPS115821  Mimulus glaucescens Lowell Ahart 2009-4-26 15644 Butte In a wet drainage, on the west side of Guardians Trail, about 300 yards southwest of Pine Trail, Upper Bidwell Park, about 5/8 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  JEPS5545  Mimulus glaucescens R. F. Hoover 1937-5-18 2235 Butte 3 mi n Chico Comment
  JEPS114718  Mimulus guttatus Lowell Ahart 2008-5-21 14774 Butte Damp to dry bare granite soil, below the high water line of Lake Oroville, on the north and south side of the South Fork of the Feather River, where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam 246 Comment
  SEINET10962487  Mimulus pilosus Mary Susan Taylor 1978-9-8 Taylor 1880 Butte Along flood control slough, ca. 4 mi N of Chico, along Hwy 99. 61 Comment
  UC1552175  Mimulus torreyi Barbara Ertter 1988-6-19 7647 Butte ca 1/2 mi sw Jonesville (on road to Butte Meadows, n tip of Butte Co.) 1524 Comment
  JEPS117548  Mimulus tricolor Lowell Ahart 2010-6-20 16820 Butte About 1/4 mile north of Cox Lane, about 1 1/2 miles east of Palermo Honcut Highway, Guidci Ranch, about 7 1/2 miles (air) southeast of Oroville 59 Comment
  JEPS119684  Mimulus tricolor Lowell Ahart 2012-5-2 17962 Butte About 30 yards west of the Easter Cross Parking Lot, Upper Bidwell Park, about 1 mile east of Chico. 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
  POM181509  Mimulus tricolor H. F. Copeland 1923-5-1 s.n. Butte Nelson. Comment
  UC726132  Mimulus tricolor A. A. Heller 1940-5-13 15614 Butte 3 mi w Chico (along State Hwy 32) Comment
  RSA636047  Minuartia californica Michael A. Vincent, Ethan H. Freid 1998-4-6 8122 Butte Table Mountain. Comment
  UCSB64006  Minuartia californica Ahart, Lowell 1974-3-12 Butte Peter Ahart Ranch; about 1/2 miles north and 2 miles east of Honcut; about 12 miles south of Oroville 45 Comment
  CAS-BOT-BC433046  Mitella pentandra E. B. Copeland 1930-6-24 644 Butte Jonesville 1500 Comment
  JEPS93834  Mollugo verticillata Lowell Ahart 1998-7-1 8029 Butte about 7 air mi n of Oroville (20 yards s of a east west fence, in the tracks of poor dirt road about 5/8 mi n of the cow chute along Cherokee Road, North Table Mountain); North Table Mountain 403 Comment
  CAS-BOT-BC435070  Mollugo verticillata Lowell Ahart 1984-8-19 4787 Butte North of the state burrow area, west of Pacific Heights Road, about 5 miles south-west of Oroville 40 Comment
  CAS-BOT-BC219950  Monardella breweri subsp. lanceolata A. A. Heller 1914-7-24 11628 Butte Near Forest Ranch 731 Comment
  CHSC62558  Monardella breweri subsp. lanceolata B. Castro 1993-7-27 490 Butte Ca 3 mi SW of jcn of French and Peavine Creeks, at SE end of Swayne Hill, on USFS Rd 23N28 ca 0.8 mi W of its jcn with Rd 22N34. 737 Comment
  CHSC43018  Monardella odoratissima subsp. pallida L. P. Janeway 1987-7-5 2457 Butte 2.5 mi N of Jones Mdw along rd to Philbrook Res. 1920 Comment
  UC2035956  Monardella odoratissima subsp. pallida H. F. Copeland 1932-8-17 Butte At The Summit Jonesville 2000 Comment
  CHSC38478  Monardella sheltonii Vernon H. Oswald 1983-6-16 689 Butte Upper Bidwell Park, Chico, on the north rim 500 ft w of the power lines. 213 Comment
  POM70490  Monardella sheltonii C. C. Bruce 1897-05 1974 Butte Little Chico. Comment
  RSA32830  Monardella sheltonii A. A. Heller 1938-6-14 15151 Butte 23 miles from Oroville, east of Jarboe Pass, on the Feather River Highway. Comment
  RSA796042  Monardella sheltonii L. P. Janeway 2012-6-23 10888 Butte Northern High Sierra Nevada. Southwestern spur of Rocky Ridge, 0.6 air km south of Bachelor Point; along Road 23N06E 0.8 road km southeast of Rim Road/Ponderosa Way. 895 Comment
  UCD125264  Monardella venosa B. Castro; J. D. Jokerst 1992-5-19 457 Butte bottom of unnamed canyon southeast of Neal Road, ca. 200 feet northwest of intermittent creek. 79 Comment
  SD130983  Monochoria vaginalis Lowell Ahart 1981-9-19 3193 Butte Butte County Rice Experiment Station 35 Comment
  CAS-BOT-BC444885  Montia fontana Lowell Ahart 1987-5-12 5631 Butte South of Lumpkin Ridge Road, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls 1280 Comment
  CAS-BOT-BC444886  Montia fontana Lowell Ahart 1990-4-15 6462 Butte Below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/8 mile north-west of the Enterprise Bridge across Lake Oroville 289 Comment
  CAS-BOT-BC444890  Montia fontana L. P. Janeway 1988-6-25 2871 Butte In Coon Creek and near Bull Hill Road 1.0 mi from Skyway. 1554 Comment
  CHSC50417  Montia fontana subsp. amporitana Vernon Oswald; Lowell Ahart 1990-6-20 4301 Butte High Lakes Rd ca. 0.5 mi south-southwest of Carr Mine, east of Philbrook Reservoir. Common among Veratrum on a moist meadow just south of the road. 1828 Comment
  SEINET10572723  Montia fontana subsp. chondrosperma Mary Susan Taylor 1984-4-6 Taylor 5405 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
  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
  CAS-BOT-BC445037  Montia linearis Lowell Ahart 1983-6-30 4183 Butte On the east side of the West Branch of the Feather River, about 5 miles east of Stirling City 1150 Comment
  SEINET10572663  Montia linearis Mary Susan Taylor 1981-5-6 Taylor 3624 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
  CHSC103222  Morus alba L. P. Janeway; B. Castro 2010-5-8 9973 Butte Cascade Range Foothills. Upper Bidwell Park, Chico; along Yahi Trail about 15 m north of Big Chico Creek, 380 m west of the up-per high power lines. 88 Comment
  CHSC112724  Muhlenbergia filiformis Lowell Ahart 2013-10-26 19222 Butte South side of Philbrook Creek, below the high water line (strand) of Philbrook Reservoir. 1681 Comment
  CHSC51290  Muhlenbergia filiformis Lowell Ahart 1990-10-21 6636 Butte Below the high water line of Lake Oroville, about 1 mile north of Nelson Bar Road, about 1/2 mile west of Gold Flat. 213 Comment
  JEPS95025  Muhlenbergia filiformis Lowell Ahart 1997-10-20 7931 Butte 3 air mi nw of Sly Creek Reservoir Dam (on w side of sharp bend in South Fork Feather River, about 1/4 mi n of bridge across the river, about 3/4 mi n of Golden Trout Crossing); South Fork Feather River 914 Comment
  CHSC51292  Muhlenbergia mexicana Lowell Ahart 1990-9-30 6610 Butte On the bottom of the East Fork of Canyon Creek, below the high water line of Lake Oroville, about 1/8 mile north-east of the Canyon Creek Bridge acoss Lake Oroville. 243 Comment
  JEPS121900  Muhlenbergia minutissima Lowell Ahart 2014-7-10 19639 Butte About 80 yards south of Philbrook Road, about 1 1/4 miles west of Philbrook Reservoir. Comment
  CHSC36084  Myosotis discolor R. A. Schlising; R. Banchero 1981-5-20 4058 Butte E part of county, E of village of Feather Falls, along the Fall River. Comment
  CHSC45423  Myosurus minimus Lowell Ahart 1980-5-4 2180 Butte On the sides of a small wash in a pasture, south-west of the intersection of Nelson Avenue and 20th. Street in Thermalito. 60 Comment
  CHSC21386  Myrtus communis var. microphylla M. S. Taylor 1975-6-22 787 Butte On n side of Big Chico Creek, ca. 50 ft e of Ivy Street, California State University, Chico. Comment
  CHSC49674  Najas gracillima Vernon Oswald 1983-6-18 716 Butte Upper Bidwell Park, Chico, in Horseshoe Lake. Along the n side of the lake. 100 Comment
  UC1100014  Najas guadalupensis Herbert L. Mason, Verne Grant 1946-8-15 13053 Butte Butte Sink, Greylodge Game Refuge, Irrigation Ditch #833, near caretaker's house Butte Sink; , Greylodge Game Refuge, Irrigation Ditch #833 Comment
  UCD13199  Nasturtium officinale Charles Martin 1986-4-26 11 Butte California: Sutter Co. Sutter Buttes, Canyon SE of North Butte, R2E, T16N, Sec. 20, SW 1/4. Elev. ca. 600 ft. 182 Comment
  SEINET10496821  Navarretia divaricata Mary Susan Taylor 1978-7-19 Taylor 1764 Butte On E side of Upper Scotts John Road, ca. 3 mi N of its junction with Scotts John Road, ca. 7 mi E of Jonesville. 1890 Comment
  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
  CHSC97038  Navarretia divaricata subsp. vividior B. Castro; Plumas NF/Feather River RD botanists 2005-6-6 1483 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
  CHSC45755  Navarretia filicaulis L. P. Janeway 1987-6-13 2195 Butte Saddle along Ponderosa Way (Rim Rd) 3.4 mi NE of Jarbo Gap. 841 Comment
  UC1111635  Navarretia filicaulis Lewis S. Rose 1955-6-15 55101 Butte 6 mi se Paradise (on Pentz Road) 426 Comment
  SEINET260314  Navarretia heterandra Lowell Ahart 1988-5-5 5981 Butte P. Ahart Ranch ca 2.25 mi N and 1.5 mi E of Honcut ca 12 mi S of Oroville 43 Comment
  UC856827  Navarretia intertexta A. A. Heller 1914-5-11 11386 Butte 8 mi n Oroville 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
  CHSC113523  Navarretia intertexta subsp. intertexta Lowell Ahart 2014-7-7 19596 Butte On the south side of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1664 Comment
  JEPS107909  Navarretia intertexta subsp. intertexta Lowell Ahart 2005-7-13 12147 Butte About 10 yards east of the intersection of Forbestown Road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown, about 12 miles (air) east of Oroville 759 Comment
  CHSC61001  Navarretia leptalea subsp. leptalea Lowell Ahart 1993-6-26 7035 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  UC600665  Navarretia leptalea subsp. leptalea H. F. Copeland 1920-7-11 374 Butte Butte Creek Canyon Comment
  UCSB34436  Navarretia leucocephala Haller, John; Vivrette, Nancy 1980-4-28 Butte Cherokee Road Comment
  CHSC28132  Navarretia pubescens J. D. Jokerst 1979-4-28 208 Butte Ca 200 yds nw of Rock Crk. (intersection of Rock Crk. Rd. and Cohasset Hwy.). 106 Comment
  SEINET10869734  Navarretia squarrosa Mary Susan Taylor 1977-6-25 Taylor 1393 Butte Foothill Woodland-Yellow Pine Forest transition zone, on Ponderosa Way betwe en Cohasset and Forest Ranch. 610 Comment
  UCD18876  Navarretia tagetina Vernal Pool Team 2001; Carol Witham and Jennifer Buck 2001-5-3 184 Butte off of Hwy 99, 2 mi. north of its intersection with Hwy 149, Book Family Farm, Book Ranch Site, pool # BOO072, UTMs: 10S0611198; 4386920. Comment
  UCD80639  Navarretia tagetina CNPS SN Foothill Team 2005-5-3 SNFN 0198 e Butte City of Chico, Doe Mill Meadowfoam Preserve, ca. 200 m at 240 degrees from the preserve gate, and ca. 75 m from the east fence. 85 Comment
  CHSC29399  Nemacladus capillaris R. A. Schlising; R. Banchero 1980-6-17 3724 Butte N of Magalia and De Sabla along Skyway, ca 1.5 mi SW jct with Coutelenc Road at Lovelock. 780 Comment
  RSA337389  Nemacladus interior L. Ahart 1984-6-8 4669 Butte At the Ponderosa Dam, ca. 2 mi NW of Forbestown. 370 Comment
  SEINET3156476  Nemophila exilis H. M. Hall 1908-4-5 8025 Butte Near Oroville, in the foothills of the Sierra Nevada. 150 Comment
  NY337170  Nemophila glauca Mrs. C. C. Bruce 2037 Butte Comment
  CHSC30869  Nemophila heterophylla J. D. Jokerst 1979-3-23 1161 Butte Top of North Table Mt., W edge of Mt immediately N of the waterfalls of the S fork of Coal Cr Canyon . 365 Comment
  CHSC65264  Nemophila heterophylla H. M. Hall 1908-4-5 8025 Butte Near Oroville, in the foothills of the Sierra Nevada. 150 Comment
  CHSC7093  Nemophila heterophylla Nancy Wiseman 1969-4-13 Butte 2 mi along Feather Falls trail 22 mi e of Oroville. Comment
  RSA754791  Nemophila heterophylla L. Ahart 2009-4-26 15641 Butte South side of Guardians Trail, about 30 yards SW of Pine Trail, Upper Bidwell Park, about 3/8 air miles SW of the intersection of Hwy 32 and Ten Mile House Road, about 10 miles NE of Chico. 382 Comment
  SEINET5520962  Nemophila heterophylla H. P. Chandler 1908-4-5 8025 Butte Near Oroville, in the foothills of the Sierra Nevada 150 Comment
  UC24189  Nemophila heterophylla Winifred Paine 1902-3-29 Butte Chico Comment
  CHSC24718  Nemophila pedunculata C. E. Stopher 1976-4-3 16 Butte 9.7 km se of Chico via Honey Run road. 100 m sw of covered bridge on s side of canyon. 122 Comment
  CHSC39093  Nemophila pedunculata R. A. Schlising; R. Banchero 1981-5-20 4065 Butte Lumpkin Ridge, ne of village of Feather Falls. 1280 Comment
  JEPS119738  Nemophila pedunculata Lowell Ahart 2012-3-23 17789 Butte About 200 yards east of Big Chico Creek, about 200 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. 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
  UC426938  Nemophila spatulata E. B. Copeland 1930-6-28 445 Butte Jonesville 1650 Comment
  POM199585  Nemophila spatulata H. F. Copeland 1932-6-29 s.n. Butte Jonesville. Above meadow by Butte Creek. Comment
  CHSC61338  Nicotiana acuminata var. multiflora Lowell Ahart 1993-7-22 7069 Butte At Camp 18, about 5 (air) miles north-east of Feather Falls. 1219 Comment
  UC1609479  Nicotiana acuminata var. multiflora Lowell Ahart 1993-7-22 7069 Butte about 5 air mi ne Feather River Falls (at Camp 18) 1219 Comment
  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
  CHSC2491  Odontostomum hartwegii W. Fitzwater 1958-4-19 Butte Along Rock Cr., Chico area. Comment
  SEINET12265276  Odontostomum hartwegii J. H. Morris 1932-1 s.n. Butte Durham Comment
  UCD139088  Odontostomum hartwegii Grady L. Webster; Dean Kelch 1992-4-18 7759 Butte intersection of Pentz Road with Durham Pentz Rd. 150 Comment
  CHSC108854  Oemleria cerasiformis Lowell Ahart 2012-3-2 17770 Butte About 30 yards south of Ten Mile House Road, about 1/4 mile west of Highway 32, about 9 miles northeast of Chico. Comment
  UCD113663  Oemleria cerasiformis Vernon H. Oswald 1994-3-30 6034 Butte In Beatson Hollow on North Table Mtn., along a jeep road 0.7 mi W of Cherokee Rd. Branch. 304 Comment
  CDA4254  Onobrychis viciifolia M. S. Taylor 1982-6-24 4730 Butte Around large landing on saddle of ridge southeast of Flea Mountain, north of Pulga, ca. 5 air miles east of Magalia. Comment
  UC1586570  Ophioglossum californicum Lowell Ahart 1991-3-11 6642 Butte ca. 2 1/2 mi n and 3 3/4 mi e Honcut (ca. 12 mi se of Oroville, Joie Osgood Ranch) 91 Comment
  SEINET8380139  Oreostemma alpigenum Hayes, Warner 1977-11-9 71 Butte ca. 10 m n of Humbolt Rd., exactly 6.9 mi from the turn to Butte Meadows along Hwy 32. 1219 Comment
  CDA36804  Orobanche fasciculata D. B. Joley 1972-5-9 Butte Hwy. 32, approx. 7 miles north of Chico. 0 Comment
  CHSC61645  Orthilia secunda Lowell Ahart 1993-9-13 7236 Butte Dry wash located near Bolt Creek, about 1 mile south-east of Butte Meadows. 1325 Comment
  RSA633333  Orthocarpus attenuatus Michael A. Vincent, Ethan H. Freid 1998-4-6 8128 Butte Table Mountain. Comment
  SEINET10549654  Orthocarpus campestris Mary Susan Taylor 1979-5-6 Taylor 1999 Butte Peter & Lowel Ahart Ranch, Honcut; Valley Grassland. 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
  SEINET12318314  Orthocarpus lacerus Unknown 1978-1 18 Butte 6.9 mi N of Cohasset Rd from East Ave jct 472 Comment
  JEPS114193  Oxalis bowiei L. P. Janeway 2007-12-11 9224 Butte Northern Sierra Nevada Foothills. Southeast side Feather River, west side Table Mountain Blvd bridge. Comment
  CHSC31456  Oxalis corniculata L. Ahart 1980-10-27 2689 Butte Near the garden area near our home, Peter Ahart Ranch, Honcut. 50 Comment
  CHSC41310  Oxypolis occidentalis S. C. Morey 1983-7-22 546 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  CHSC42376  Panicum acuminatum Lowell Ahart 1987-5-27 5715 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
  CHSC62319  Panicum capillare B. Castro 1990-10-11 438 Butte Midway between Chico, Paradise and Oroville, ca 0.75 mi NW of 'Pentz', N and W of jcn Pentz and Messilla Valley Roads. In springs at base of W slope of Sausage Mtn. 164 Comment
  UCD89813  Panicum capillare subsp. hillmanii W. H. McHenry 1969-11-10 s.n. Butte Durham. Comment
  CHSC116140  Panicum dichotomiflorum subsp. dichotomiflorum Lowell Ahart 2015-10-26 20606 Butte Strand of Lake Oroville, on west side of West Branch of Feather River,about 1 mile (air) southeast of Kunckle Reservoir, about 5 miles (air) southest of Paradise. 207 Comment
  CHSC90964  Parentucellia viscosa L. P. Janeway 2005-5-9 8384 Butte Northern Sierra Nevada Foothills. Northwest side of Hwy 70 0.6 km southwest of Pentz Road. 207 Comment
  SEINET7040266  Parvisedum pentandrum A. G. Vestal 1963-5-9 s.n. Butte Ca 14.2 miles southeast of Chico. Nelson Quadrangle UTM Zone 10, 598465mE, 4375546mM. Comment
  JEPS104347  Parvisedum pumilum Lowell Ahart 2003-4-10 10082 Butte Near the easat side of the ''sunken area,'' ca 150 yd w of the e rim of South Table Mountain, ca 2 1/2 mi (air) n of Oroville. 320 Comment
  CDA2128  Paspalum dilatatum A. A. Beetle 1941-6-27 2894 Butte 4 miles north of Gridley. 0 Comment
  CHSC88476  Paspalum dilatatum L. P. Janeway 2004-6-20 8138 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
  UCD88712  Paspalum dilatatum A. A. Beetle 1941-6-27 2894 Butte 4 miles north of Gridley. Comment
  SEINET10453508  Paxistima myrsinites Mary Susan Taylor 1981-5-11 Taylor 3689 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
  CHSC63242  Pectocarya pusilla Lowell Ahart 1994-4-22 7285 Butte In a small meadow, south of the intersection of Black Bart Road and Forbestown Road, about 3 1/2 miles south-west of Forbestown. 609 Comment
  UCD80146  Pectocarya pusilla CNPS SN Foothill Team 2005-3-22 SNFN 0063 a 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
  POM15713  Pedicularis aurantiaca Kate Conger 1907-1 s.n. Butte Brush Creek. Comment
  CHSC64225  Pedicularis densiflora Robert C. Hill 1990-4-12 21 Butte 100 ft. s of Feather Falls, 25 mi ne of Oroville. 914 Comment
  CHSC39816  Pellaea andromedifolia Ruby Gist 1935-3-1 Butte Chico. Comment
  SFV71  Pellaea andromedifolia M. L. Vincent 1961-3-26 8 Butte Sierra Nevada 0.5 miles north of Nelson Bar Road near P. G. & E. power building. Southeast of Paradise 300 Comment
  HSC66079  Pellaea andromedifolia M. S. Taylor 1980-3-30 2411 Butte Salmon hole, upper Bidwell Park, Chico 244 Comment
  UC399519  Pellaea andromedifolia Dr. E. B. Copeland 1902-12-29 2750 Butte Chico Canyon Comment
  CAS-BOT-BC69336  Pellaea brachyptera Gladys L. Smith 1976-6-5 4537 Butte Selaginella Cliff, Feather River Canyon, Rte. 70 548 Comment
  CHSC28869  Pellaea mucronata M. S. Taylor 1980-3-1 2347 Butte On se facing bluffs overlooking Hamlin Canyon, ca. 1/4 mi se of Elliot Spring House on Neal Rd, ca. 2 mi sw of Paradise. 301 Comment
  SD111898  Pellaea mucronata Barbara Ertter, Jeffrey Strachan, Lowell Ahart 1980-5-8 3316 Butte North Honcut Creek on Peter Ahart Ranch ca 2I(c) miles NE of Honcut between Marysvill and Oroville 45 Comment
  JEPS87422  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
  NY571159  Penstemon azureus var. azureus F. W. Pennell 1940-6-5 25683 Butte Route 24; along Feather River, above Oroville; in Lassen National Forest 548.6 Comment
  UC177597 Image available Penstemon corymbosus var. puberulentus H. M. Hall 1914-7-19 6763 Butte near Chico; Richardson Springs; Richardson Springs, near Chico, Butte Co. 152 Comment
  UC436310  Penstemon deustus var. deustus E. B. Copeland 1930-7-7 Butte Jonesville Comment
  CHSC26686  Penstemon gracilentus M. S. Taylor; M. Hayes, R. Schlising 1977-8-17 1485 Butte At Humboldt Summit at Butte-Tehama County Line, ca. 150 ft w of Old Humboldt Rd, on Butte side. 2133 Comment
  NY600732  Penstemon gracilentus E. B. Copeland 1930-7-6 457 Butte Above Jonesville 1950 Comment
  UC195477  Penstemon gracilentus A. A. Heller 1914-8-7 11664 Butte summit back Jonesville; summit back of Jonesville 2133 Comment
  CHSC107592  Penstemon laetus var. leptosepalus Lowell Ahart 2011-7-9 17570 Butte Along a small wash, southwest edge of a large open bare granite area, about 3/8 mile northeast of Little Bald Rock, about 2 miles (air) southeast of Brush Creek, about 15 miles (air) northeast of Oroville. 967 Comment
  CHSC87976  Penstemon laetus var. leptosepalus Lowell Ahart 2004-6-22 11122 Butte On the west side of Doe Mill Road, about 1 mile southeast of the bridge across Butte Creek, about 2 1/2 miles (air) southeast of Forest Ranch, about 5 miles (air) southwest of Stirling City. 713 Comment
  NY604521  Penstemon laetus var. leptosepalus Mrs. C. C. Bruce 06 1898 2415 Butte Forest Ranch Comment
  POM195084  Penstemon laetus var. leptosepalus D. D. Keck 1930-7-25 981 Butte 4 miles W of Forbestown. 762 Comment
  CHSC9700  Penstemon neotericus Nancy Mosman 1971-7-3 54 Butte In meadow on n side of Humboldt Road ca. 0.2 mi e of Butte Meadow Ranger Station. 1371 Comment
  LA209542  Penstemon newberryi var. newberryi E. B. Copeland; 1930-7-6 458 Butte above Jonesville 1900.0 Comment
  CHSC42835  Penstemon personatus L. P. Janeway 1987-7-4 2434 Butte Along the Concow Rd ca 1 mi N of Bald Mtn (towards Jones Mdw). 1786 Comment
  SEINET10548094  Penstemon personatus Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4761 Butte About 1/2 mile east of Bald Mountain, about 5 miles north-east of Stirling City. Comment
  CAS-BOT-BC239448  Penstemon rydbergii var. oreocharis E. B. Copeland 1931-6-20 s.n. Butte Jonesville. On gravel bars by Butte Creek 1500 Comment
  NY651290  Penstemon rydbergii var. oreocharis A. A. Heller 1928-7-10 14652 Butte At Butte Meadows Comment
  JEPS14291  Pentachaeta alsinoides Rimo Bacigalupi with G. T. Robbins and Fran Chisaki 1956-4-19 5608 Butte along Oroville-Concowroad 2.8 mi below (and s of) junction with Yankee Hill road 373 Comment
  CHSC31464  Pentagramma triangularis subsp. semipallida M. S. Taylor 1981-1-5 3368 Butte Ca. 100 ft e of Pentz-Magalia Hwy, ca. 1 mi s of Kunkle Reservoir, ca. 3 mi s of Paradise. 411 Comment
  CHSC44617  Pentagramma triangularis subsp. semipallida Vernon Oswald 1984-4-9 1139 Butte Feather Falls Trail, near the overlook at the falls. 609 Comment
  CHSC92455  Pentagramma triangularis subsp. semipallida Lowell Ahart 2005-11-12 12482 Butte Steep road cut on the east side of Dark Canyon Road, south of the large parking area, south of the gate, end of Dark Canyon Road, about 3 miles (air) south of Highway 70 at Big Bend Road. 293 Comment
  CHSC108175  Perideridia bacigalupii L. P. Janeway 2011-8-17 10659 Butte Northern High Sierra Nevada. Plumas National Forest; top of Bloomer Hill. In areas where mixed conifer forest has been greatly thinned and the resulting understory shrubs have been cleared several years ago. 912 Comment
  CHSC102738  Perideridia kelloggii Lowell Ahart 2009-7-9 16028 Butte About 20 yards east of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 234 Comment
  CHSC105535  Perideridia lemmonii Lowell Ahart 2010-9-21 17212 Butte On damp bare soil, 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 Philbrood Reservoir. 1917 Comment
  JEPS110401  Perideridia lemmonii Lowell Ahart 2006-8-15 13176 Butte North edge of a wet area west of a large open meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
  CHSC31065  Perideridia parishii subsp. latifolia M. S. Taylor 1978-7-19 1788 Butte On n end of Snag Lake between creek and Humbug Rd, ca. 3 mi s of jct of Humbug Rd and Scotts John Rd. 1920 Comment
  CHSC64033  Perideridia parishii subsp. latifolia S. C. Morey 1983-9-17 750 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  CHSC1343  Persicaria amphibia V. Holt 1942-6-7 Butte Near Chico. Comment
  CAS-BOT-BC418955  Persicaria lapathifolia Lowell Ahart 1987-7-3 5766 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  CAS-BOT-BC418956  Persicaria lapathifolia Lowell Ahart 1986-11-9 5452 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
  CHSC1345  Persicaria lapathifolia V. Holt 1940-7-16 Butte W. Sacramento Ave., Chico. 54 Comment
  CHSC42054  Persicaria lapathifolia Lowell Ahart 1986-11-9 5452 Butte On the bottom of a pond, about 1/10 mile sout of the clay burrow for Oroville Dam, 1/4 mile east of Larkin Road, about 6 miles south-west of Oroville. 36 Comment
  HSC104005  Persicaria lapathifolia L. Ahart 2013-11-17 19262 Butte About 5/8 mi. SW of the Enterprise Bridge across Lake Oroville, below the high water line of Lake Oroville, along the sides of McCabe Creek 245 Comment
  JEPS119936  Persicaria maculosa Lowell Ahart 2012-9-28 18465 Butte Gravel bar in the middle of Big Chico Creek, about 30 yards east of the Freeway, Lower Bidwell Park, Chico. Comment
  CHSC38620  Persicaria punctata Vernon Oswald 1983-7-22 898 Butte Upper Bidwell Park, Chico, ca. 100 ft. n of Upper Park Rd. at Parking Area L (Diversion Dam). 128 Comment
  CHSC116976  Petrorhagia dubia Matthew Forster 2013-4-9 Butte Centerville Rd., along flumes trail. 335 Comment
  CHSC4644  Petrorhagia dubia R. Carter 1966-4-26 368 Butte Found ca. 10 mi. NE of Oroville on E side of Oroville-Quincy Rd., .3 mi. S of intersection with USFS road 21N40 to Bloomer Mt., growing 10 yds. off road. 609 Comment
  CHSC24760  Phacelia egena Keith Lickey 1976-4-14 59 Butte 300 m w of Hwy 70, ca. 1 km n of Lunt Rd. 365 Comment
  CHSC69213  Phacelia egena J. D. Jokerst 1984-5-19 2022 Butte Along edge of road cut for Pulga Road within 100 feet of its junction with Highway 70 in the canyon of the North Fork of the Feather River. Comment
  SFV11584  Phacelia egena M. L. Vincent 1964-4-9 535 Butte 2 miles south of Pearson Road on Clark Road. Comment
  CHSC46720  Phacelia imbricata R. A. Schlising 1982-7-28 4356 Butte Plumas National Forest, SE of Pulga and S of Coyote Gap Station. 838 Comment
  CHSC105820  Phacelia mutabilis Lowell Ahart 2010-9-28 17269 Butte Along the east side of Big Kimshew Creek, about 100 yards east of the poor dirt road, about 1-1/2 miles (air) northeast of Jones Meadow, about 2-1/2 miles (air) southeast of Philbrook Reservoir. 1886 Comment
  UC392196  Phacelia procera E. B. Copeland 1929-7-29 Butte above Jonesville (by creek); Butte Creek 1700 Comment
  POM193436  Phacelia procera E. B. Copeland 1930-7-11 447 Butte Near Butte Creek, Jonesville. 1550 Comment
  SEINET12765109  Phacelia purpusii Lowell Ahart 2006-7-16 12962 Butte Humboldt Road, about 1 1/2 miles (air) southwest of Butte Meadows.; 0 1436 Comment
  CAS-BOT-BC154304  Phacelia ramosissima var. ramosissima A. A. Heller 1914-7-2 11517 Butte [Canon] Canyon of Big Chico creek Comment
  POM73395  Phacelia tanacetifolia C. C. Bruce 1898-05 2389 Butte Big Chico. Comment
  CHSC78113  Phalaris brachystachys Shelly Pirtle 1997-4-9 32 Butte +/- 20 miles south of Chico off of Biggs-Afton Road: Little Dry Creek. Fields. Comment
  CHSC6109  Phalaris caroliniana A. R. Jaegel 1968-4-19 143 Butte 2 mi s of Cherokee in field (3/4 mi w of 1st gate at top of Table Mountain, gate about 1 mi from Oregon City cutoff on Cherokee Rd.). Comment
  JEPS94650  Phalaris caroliniana Lowell Ahart 1998-6-9 7999 Butte about 7 air mi n Oroville (about 1/2 mi nw of the ione oak tree, nw of the cow chute along Cherokee Road); North Table Mountain 396 Comment
  SEINET10658625  Phalaris caroliniana A. Arthur Heller 1914-4-17 Heller 11307 Butte Hills 8 mi. North of Oroville Comment
  JEPS87133  Phalaris lemmonii Lowell Ahart 1992-5-23 6775 Butte on the n side of Biggs Princeton Road about 2 mi w Biggs 30 Comment
  UCD88990  Phalaris lemmonii H. A. Hannesson; R. N. Raynor 1941-5-9 s.n. Butte 10 miles S of Oroville on Marysville Road. Comment
  HSC23316  Phalaris minor B. Wilson 1968-5-12 192 Butte Chico, in front of Continental Nut Co. on Esplanade. 61 Comment
  CHSC33672  Phalaris paradoxa L. Ahart 1991-5-24 2833 Butte On bottom of a wash in one of the pasture fields on Peter Ahart Ranch, ca. 2 mi e of Honcut. 50 Comment
  SEINET10716717  Phalaris paradoxa A. Arthur Heller 1919-8-13 Heller 13352 Butte Rice fields between Nelson and Richvale in moist adobe Comment
  CAS-BOT-BC77374  Philadelphus lewisii A. A. Heller 1913-6-6 10784 Butte Ditch along Table Mountain 8 miles north of Oroville 182 Comment
  CHSC64175  Philadelphus lewisii H. H. Schmidt; M. Merello, L. Woodruff 1993-6-15 863 Butte Plumas National Forest on state road 23N06 1.5 miles N of the junction with highway 70. Label says Lat. is 39 deg, 45', 78' N. Openings in forest. 880 Comment
  SEINET10934985  Phleum pratense Mary Susan Taylor 1978-7-21 Taylor 1836 Butte Big Bald Rock, ca. 2 mi E of Lake Madrone, ca. 10 mi NE of Oroville; Yellow Pine Forest, granite soils. 998 Comment
  UC478477  Phlox gracilis E. B. Copeland 1931-6-29 680 Butte Butte Creek Jonesville 1500 Comment
  SEINET7073610  Phlox speciosa A. G. Vestal 1955-5-21 s.n. Butte About 13.8 miles east of Oroville on the Forbestown Road. UTM Zone 10, 643814mE, 4373382mN. Coordinate datum: NAD27. Comment
  HSC66088  Phoradendron bolleanum M. S. Taylor, J. D. Jokerst 1980-2-23 2316 Butte Magalia near junction of Skyway and Coutelenc Rd. 701 Comment
  RSA325180  Phoradendron bolleanum subsp. densum M. S. Taylor, Vernon H. Oswald 1984-4-4 5396 Butte At jct of Coutelenc Road and the Skyway, Magalia, just N of Paradise. 372 Comment
  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
  CHSC101261  Phoradendron villosum Lowell Ahart 2009-4-17 15559 Butte On the south slope of a ridge, about 150 yards west of Highway 32, near the south boundary, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 373 Comment
  JEPS115304  Phoradendron villosum Lowell Ahart 2009-4-17 15559 Butte On the south slope of a ridge, about 150 yards west of Highway 32, near the south boundary, Upper Bidwell Park, about 5 miles (air) northeast of Chico 373 Comment
  CHSC110330  Phyla nodiflora var. nodiflora B. Castro; Margie Graham 2006-8-24 1603 Butte Sacramento Valley. Ca 1.8 mi W of Hwy 99 and 1 mi E of Richvale, 0.25 mi N of Richvale Hwy in Cherokee Canal. On E side of canal abt 50 ft in from toe of E levee. 32 Comment
  CHSC35964  Phyla nodiflora var. rosea M. S. Taylor 1982-5-22 4495 Butte Graylodge Waterfowl Refuge, at the West Liberty Rd, ca. 12 mi se of Gridley. 19 Comment
  CHSC35299  Physocarpus capitatus Robert A. Schlising; Coleta Lawler 1981-8-8 4192 Butte Concow Reservoir E of Paradise. At roadside. Comment
  CDA3321  Phytolacca americana L. Ahart 2004-9-28 11405 Butte On the south side of the Oroville Chico Highway, west of Butte Creek, about 1 1/8 miles southeast of the Midway, about 2 1/8 miles (air) northeast of Durham, about 3 1/2 miles (air) southeast of Chico. Comment
  CHSC42140  Pilularia americana Lowell Ahart 1984-5-7 4588 Butte Along the sides of Kunkle Creek, about 1/2 mile north of Kunkle Res., about 2 miles south of Paradise. 548 Comment
  CHSC27190  Pinus mugo P. Moyer 1971-10-24 45 Butte Front lawn Admin. Bldg. On CSUC campus. 60 Comment
  SEINET10530835  Pinus sabiniana Melvin L. Conrad, Douglas G. LeDoux 1973-6-5 Conrad 7033 Butte 2.6 mi W of Paradise on Chico Road. Digger Pine with deliquescent branching. 610 Comment
  CHSC103950  Piperia elongata Lowell Ahart 2010-5-14 16673 Butte On the south side of Guardian Trail, about 1/4 mile west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 301 Comment
  CHSC109182  Pistacia atlantica Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 17996 Butte On the south side of Vallombrosa Avenue, north side of the old walnut orchard, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. 76 Comment
  CDA34559  Pittosporum tobira L. Ahart, John Dittes, Josephine Guardino 2008-11-8 15421 Butte On the south side of Cedar Grove, Lower Bidwell Park, Chico. Comment
  SEINET10529819  Pityrogramma triangularis Mary Susan Taylor 1981-3-24 Taylor 3439 Butte Two mile stretch along both sides of Feather River Hwy (70), just ne of Pulga to Cresta Powerhouse, ca. 20 mi ne of Oroville; granite gravels & soil; ca. 1700 ft. T23N R5E Pulga quad. 518 Comment
  SEINET10529833  Pityrogramma triangularis Mary Susan Taylor 1980-7-6 Taylor 3079 Butte T25N R3E ne sec 11, Butte Meadows quad; on S side of Old Humboldt Rd, on rocky slope beneath power lines, ca. 0.9 mi W of Butte Meadows Forestry Station. With R.A. Schlising. 1341 Comment
  SEINET10932923  Pityrogramma triangularis Mary Susan Taylor 1980-3-1 Taylor 2339 Butte T21N R2E se sec 11. Among rocky outcrops on n-facing bluffs overlooking Nance Canyon, ca. 1/4 mi N of Neal Road, ca. 3 mi E of its jct with Hwy 99, ca. 7 mi S of Chico. 122 Comment
  POM287608  Plagiobothrys Lyman Benson 1935-3-27 6365 Butte 5 miles NW of Oroville, Sierra Nevada Mt Range, Sacramento river watershed. 152 Comment
  UC480699  Plagiobothrys canescens H. F. Copeland 1923-3-16 602 Butte near Butte Creek Comment
  CHSC103936  Plagiobothrys fulvus Lowell 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. 371 Comment
  CHSC60966  Plagiobothrys glyptocarpus Lowell Ahart 1993-5-17 6947 Butte On the margins of a large vernal pool, on the west side of Dunstone Road, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 60 Comment
  CHSC103738  Plagiobothrys glyptocarpus var. glyptocarpus Lowell Ahart 2010-5-16 16688 Butte About 1/4 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 371 Comment
  CAS-BOT-BC228251  Plagiobothrys hispidulus A. A. Heller 1915-6-11 11969 Butte Chico Meadows in the Sierra Nevada 1219 Comment
  CHSC65331  Plagiobothrys hispidulus Lowell Ahart 1995-10-3 7667 Butte Along the north side of Butte Creek, about 150 yards east of the bridge across Butte Creek, in Butte Creek House Meadow, about 2 1/2 miles (air) north-east of Snag Lake. Meadow. 1767 Comment
  CHSC14044  Plagiobothrys nothofulvus J. A. Guichard 1973-4-4 10 Butte Found above Chico Creek between Salmon Hole and Devils Kitchen 300 yds from Upper Bidwell Park. Comment
  CHSC28985  Plagiobothrys nothofulvus R. A. Schlising 1980-3-23 3523 Butte E of Chico and SW of Paradise along Skyway. 289 Comment
  CHSC3933  Plagiobothrys nothofulvus L. R. Alexander 1967-4-6 30 Butte Ca. 200 yds. s of East Lassen Ave., Cohasset road intersection on the right hand side of Cohasset road. 59 Comment
  SBBG40484  Plagiobothrys nothofulvus J. Ingram 1960-4-6 508 Butte below Pentz Rd, ca. 1 mi N of jct with Nelson Bar Rd, S of Paradise Comment
  JEPS107359  Plagiobothrys shastensis Lowell Ahart, Paul Maslin, John Dittes 2005-3-17 11672 Butte Big Chico Creek Ecological Reserve. Ridge top, on the north side of a very poor dirt road, about 1/2 mile southwest of the Indian Cave, about 1 1/4 miles west of Big Chico Creek, about 4 miles (air) northeast of Chico 497 Comment
  CHSC54380  Plagiobothrys stipitatus var. micranthus M. Bailey 1991-4-19 565 Butte At margin of seasonal drainage ca 200 ft e of Williams Road and ca 1/4 mi n of Pentz Road; near Wallis Ponds. 85 Comment
  CHSC60967  Plagiobothrys stipitatus var. micranthus Lowell Ahart 1993-5-17 6946 Butte Vernal pool, on the west side of Dunstone Road, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 60 Comment
  JEPS104289  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2003-6-23 10309 Butte In a rice field, Peter Ahart Ranch, ca 300 yd e of Palermo Honcut Highway, ca 2 1/8 mi n of Honcut, ca 12 mi south of Oroville. 30 Comment
  CHSC35324  Plagiobothrys tenellus M. S. Taylor; K. Tharp 1982-4-8 4290 Butte Along both sides of Oroville Dam Blvd, ca. 1.5 mi s of Oroville Dam Visitors Center, Oroville. 243 Comment
  RSA32724  Plagiobothrys tenellus A. A. Heller 1916-4-13 12318 Butte Stilson Canyon east of Chico Comment
  RSA32734  Plagiobothrys tenellus A. A. Heller 1938-4-14 15037 Butte Between Pentz and Cherokee. Comment
  CHSC46259  Planodes virginica Vernon Oswald 1989-4-20 3748 Butte Butte Sink Wildlife Area (w portion of Schohr Ranch), between Butte Creek and Little Dry Creek n of Gridley-Colusa Hwy. In rice paddies. 18 Comment
  CHSC25538  Plantago coronopus Robert A. Schlisng 1974-4-24 3121 Butte Northernmost part of the county, near jct Hwy 99 and Broyles Road. Comment
  SEINET13710565  Plantago elongata Lowell William Ahart, Lowell William Ahart 2003-1 10127 Butte 1.25 Mi. S or Oroville Airport, 5 Mi. SW of Oroville (39 Deg 28'03.6"N, 121 Deg 37'52.6"W) 142 Ft. 43 Comment
  RSA669476  Plantago elongata subsp. pentasperma R. R. Halse 2001-3-28 5976 Butte Along State Hwy 99, 2.3 miles south of its junction with State Hwy 149, near Gold Creek. 40 Comment
  CHSC109132  Plantago erecta Lowell Ahart 2012-3-23 17778 Butte In a small meadow opening in brush, about 100 yards south of the intersection of Guardian Trail and Ten Miles House Road, about 1/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. 437 Comment
  CHSC111378  Plantago erecta Lowell Ahart 2012-5-2 17974 Butte 20 yards south of the fence, west of the Government Pole Line, Upper Bidwell Park, about 3/4 mile east of Chico. 85 Comment
  CHSC29120  Plantago erecta M. S. Taylor 1980-4-6 2450 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
  RSA590213  Plantago erecta Michael A. Vincent, Robert M. Rhode, Jim Snowden 1996-3-29 7228 Butte North Table Mountain, W of Cherokee Rd. N of Oroville. S side of Beatson Hollow, from center to west edge of butte. Comment
  SBBG128463  Plantago erecta L. Ahart 2012-4-9 17851 Butte N side of S Rim Trail, W of the power lines, Upper Bidwell Park, ca. 1 mi NE of Chico 143 Comment
  SEINET10836899  Plantago hookeriana var. californica Mary Susan Taylor 1975-4-25 Taylor 500 Butte Ca. 1/4 to 1/2 mi E of Cohasset Hwy, along dirt rd leading up onto ridge, ca. 10 mi NE of Chico. Soil wet red clay. Mixed Chaparral. Comment
  RSA594179  Plantago lanceolata S. O. Mattoon 1978-9-21 49 Butte Southern Cascade Mtns: Ponderosa Way Forest Road at Middle Fork, Butte Creek, 5 air miles NW of Maglia. 671 Comment
  SEINET10499809  Plantago lanceolata Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4064 Butte T20N R5E sec 5. Along Bloomer Hill Rd, ca. 1/8 mi w of Oroville-Quincy Hwy, 1.3 mi s of Berry Creek School, ne of Oroville. Foothill Woodland; 400 m. 400 Comment
  CHSC111147  Plantago major Lowell Ahart 2012-6-14 18191 Butte On the south side of the path, south of CARD Community Center, Lower Bidwell Park, Chico. 62 Comment
  SEINET10470061  Platanthera dilatata var. leucostachys Mary Susan Taylor 1978-1 Butte Comment
  UCD138966  Platanthera dilatata var. leucostachys Kenneth D. Stewart 1965-7-7 s.n. Butte around 25 miles northeast of Chico on State Highway 32. Comment
  SEINET12030014  Platanus racemosa Unknown 1984-1 4535 Butte along North Honcut Creek, ca 1 mi N & 2.7 mi E of Honcut, on Peter Ahart Ranch 50 Comment
  CHSC39417  Platystemon californicus J. D. Jokerst. 1984-4-7 1966 Butte Table Mountain. Ca 100 meters south of the creek that flows into the south fork of Coal Creek Cayon. Comment
  CHSC33573  Pleuricospora fimbriolata M. S. Taylor 1981-4-27 3560 Butte Ridge between 21N33 and 21N80, ca. 1 mi sw of Bald Rock Rd, ca. 0.5 mi n of Zink Rd, ca. 2 mi sw of Brush Creek. 1005 Comment
  CAS-BOT-BC244399  Poa annua Lowell Ahart 1973-2-21 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CHSC8573  Poa annua J. G. Moore 1969-5-7 22 Butte Salem St. between 7th and 8th Sts. on e side of road, Chico. 60 Comment
  JEPS122268  Poa annua Lowell Ahart 2014-4-9 19324 Butte On the north side of Colusa Highway, about 4/10 mile east of the intersection of Pennington Road and Colusa Highway, about 5 1/2 miles west of Gridley. Comment
  SEINET10657852  Poa bulbosa BOS 1978-2-4 BOS 9 Butte Along Richardson Springs Rd, W of Maple Creek, 3 mi. ne of Cohasset Rd, 7 mi nne of Chico. Foothill Woodland. Comment
  SEINET10968212  Poa bulbosa Lowell Ahart 1984-4-3 Ahart 4534 Butte T17N R4E sec 1. Along North Honcut Creek, ca. 1 mile N and 2.7 miles E of Honcut; on Peter Ahart Ranch. Foothill Woodland; 50 m. 50 Comment
  SEINET10836233  Poa compressa Lowell Ahart 1991-6-22 Ahart 6665 Butte On the west side of Powell Creek, below the high water line of Lake Oroville, east of Springtown Road, Lake Oroville. Foothill Woodland (destroyed). T19N R5E NW/S1. 244 Comment
  CHSC31703  Poa pratensis L. Ahart 1977-5-2 1348 Butte Near North Honcut Creek, 3 mi ne of Honcut. 60 Comment
  POM218975  Poa pringlei E. B. Copeland 1931-6-22 606 Butte Jonesville 2000 Comment
  SEINET10822306  Poa scabrella A. Arthur Heller 1917-4-15 Heller 12678 Butte Treeless plains ten miles north of Chico in adobe soil. 64 Comment
  CAS-BOT-BC236373  Poa secunda subsp. secunda Lowell Ahart 1977-6-16 s.n. Butte Along the banks of N Honcutt Creek. Peter Ahart Ranch, Honcut 50 Comment
  CHSC27795  Poa secunda subsp. secunda K. Bridwell 1978-3-11 41 Butte 1 mi ne intersection of Rock Creek Rd and Cohasset Hwy, along Cohasset Hwy. Ca. 4 mi ne of Chico. 457 Comment
  UCD91669  Poa secunda subsp. secunda P. B. Kennedy 1914-5-8 s.n. Butte Clear Creek, Paradise Grade. Comment
  CHSC110452  Poa sierrae L. P. Janeway 2013-5-16 11101 Butte Northern High Sierra Nevada. Plumas National Forest; mid-slope North Fork Feather River canyon +/- overlooking Arch Rock and the Hwy 70 rest area, along Camp Creek Road 5.4 road km northeast of Dixie Road. 702 Comment
  RSA0108924  Poa sierrae Lawrence P. Janeway 2013-5-16 11101 Butte Northern High Sierra Nevada. Plumas National Forest; mid-slope North Fork Feather River canyon +/- overlooking Arch Rock and the Hwy 70 rest area, along Camp Creek Road 5.4 road km northeast of Dixie Road. 702 Comment
  SEINET10508319  Poa tenerrima Mary Susan Taylor 1980-3-15 Taylor 2382 Butte T21N R2E nw sec 36. In Valley Grassland ca. 1/4 mi S of Pentz Road, ca. 1/8 mi E of Hwy 99, ca. 15 mi S of Chico; near large vernal pool. 55 Comment
  UC726650  Pogogyne zizyphoroides A. A. Heller 1938-4-22 15043 Butte on US Highway 99E, near the Cana Road. Hartweg got it in this neighborhood, in Valle Sacramento. 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
  UCSB64007  Polycarpon tetraphyllum Ahart, Lowell 1978-6-2 Butte Along the edge of North Honcut Creek; Peter Ahart Ranch; about 1 mile north and 3 miles east of Honcut; about 12 miles south of Oroville 39 Comment
  CDA38778  Polycarpon tetraphyllum var. tetraphyllum L. Ahart, Linnea Hanson, Kaline Le Coq, Josephine Guardino 2012-4-27 17911 Butte On the south side of the path, near table 14, on the north side of Centennial Avenue, Lower Bidwell Park, Chico. Comment
  CDA13254  Polygala cornuta G. F. Hrusa, T. D. Wilfred 1996-7-8 13102 Butte Plumas National Forest; Near Old Railroad Grade Rd., Paradise Lake Dam, approx. 3 m. N of Magalia. Comment
  CHSC46498  Polygala cornuta Lowell Ahart 1989-5-31 6334 Butte On the west side of a small stream, north of the end of Truex Road, near Lake Oroville, about 1/4 mile north-west of the West Branch Bridge across Lake Oroville. 304 Comment
  CAS-BOT-BC167555  Polygala cornuta var. cornuta Lowell Ahart 1983-6-21 4095 Butte Along Bloomer Hill Road, about 1 1/4 miles west of the Oroville Quincy Highway, about 15 miles north-east of Oroville 450 Comment
  CAS-BOT-BC167556  Polygala cornuta var. cornuta Chester Dudley 1940-6-1 s.n. Butte Near Magalia Comment
  JEPS104470  Polygonum amphibium var. emersum Lowell Ahart 2003-6-16 10287 Butte In a ditch on the w side of Wickman Rd, ca 1 mi south of Richvale West Rd, ca 1 1/2 mi (air) sw of Richvale. 28 Comment
  CAS-BOT-BC109139  Polygonum bidwelliae L. P. Janeway; B. Castro 1992-5-16 4186 Butte Unnamed canyon on southeast side of Neal Road opposite the entrance to the Butte County Land Fill. 68 Comment
  JEPS115656  Polygonum bidwelliae Lowell Ahart 2009-5-30 15806 Butte On the west side of Guardians Trail, about 50 yards north of Pine Trail, Upper Bidwell Park, about 3/8 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 411 Comment
  RSA261661  Polygonum bistortoides A. Kellogg 1870-6-21 s.n. Butte Chico Comment
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Jun 10 2012
  CAS-BOT-BC414365  Polygonum californicum Lowell Ahart 1979-6-9 s.n. Butte 2 mi se of Paradise 500 Comment
  CAS-BOT-BC414366  Polygonum californicum Lowell Ahart 1979-5-29 s.n. Butte 2 1/2 miles se of Paradise. About 1/4 mi. n of Kunkle Res. & e of Kunkle Cr. 500 Comment
  CHSC27969  Polygonum douglasii subsp. douglasii 1978-7-19 1766 Butte On e side of Upper Scotts John Rd, ca. 3 mi n of its jct with Scotts John Rd, ca. 7 mi ne of Jonesville. 1889 Comment
  UC600405  Polygonum minimum H. F. Copeland 1932-8-19 Butte Butte Creek Jonesville (near source) 1700 Comment
  CHSC46011  Polygonum parryi Lowell Ahart 1984-7-19 4730 Butte Along the edge of the dirt road where there is a seep along the road gutter, about 1 1/2 miles south-east of Bald Mountain, 3/4 mile west of Oak Point, about 4 miles northeast of Stirling City. 1371 Comment
  UC1191264  Polygonum punctatum Herbert L. Mason and Verne Grant 1946-9-4 13109 Butte West Gridley Rd 833 Canal Comment
  CAS-BOT-BC71868  Polypodium californicum Lowell Ahart 1980-3-8 2034 Butte Peter Ahart Ranch, Honcut 50 Comment
  SEINET10530406  Polypodium californicum Mary Susan Taylor 1979-11-15 Taylor 2287 Butte Peter Ahart Ranch, Honcut. With Jim Jokerst & Lowell Ahart. 46 Comment
  SEINET10530414  Polypodium californicum Mary Susan Taylor 1979-3-20 Taylor 1950 Butte T21N R4E nw1/4 sec. 21. Cherokee Quad. Along old road on N side of Hwy 70 following West Branch of the Feather River, which begins at S side of bridge over N fork of Feather River, ca. 10 mi N of Oroville; limestone outcrops within Foothill Woodland. 305 Comment
  CHSC28504  Polypodium calirhiza M. S. Taylor; J. D. Jokerst 1979-10-13 2254 Butte By creek crossing Jordan Hill Rd (Ponderosa Way on some maps) ca. 0.8 mi n of its jct with Concow Rd, ca. 5 mi e of Paradise, 426 Comment
  CHSC31851  Polypodium calirhiza L. Ahart 1974-3-8 311 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC41900  Polypodium calirhiza Lowell Ahart 1975-4-1 729 Butte About 50 yards south of the water trough, about 1 1/2 miles north-east of the Enterprise Bridge across Lake Oroville. 335 Comment
  RSA715711  Polypodium calirhiza L. Ahart 2005-1-20 11472 Butte West side of McCabe Creek, above the high water mark of Lake Oroville, about 1/4 mile soutj of the siphon. about 3 mi northeast of Hurleton, about 7 mi east of Oroville Dam. 305 Comment
  CAS-BOT-BC232965  Polypogon australis P. B. Kennedy 1915-5-15 s.n. Butte Biggs Comment
  CAS-BOT-BC232966  Polypogon australis A. A. Heller 1914-5-19 11419 Butte Hills 8 miles N of Oroville Comment
  CHSC108141  Polypogon interruptus Lowell Ahart 2011-10-29 17726 Butte On the bare sides of a ditch, on the south side of Biggs Princeton Road, about 500 yards west of Riceton Highway, about 1 mile northwest of Biggs. 27 Comment
  UC1562415  Polypogon interruptus Lowell Ahart 1990-5-25 6489 Butte about 1/8 mi nw Enterprise Bridge (across Lake Oroville, below high water line Lake Oroville, e of Enterprise Boat Launch Area); Lake Oroville 259 Comment
  CHSC46106  Polypogon monspeliensis L. Ahart; M. S. Taylor, J. D. Jokerst 1982-4-29 1536 Butte Just north of Rutherford Rd. ca 100 met. west of its junction with Pennington Rd. Grey Lodge Waterfowl Management Area. Comment
  CHSC82408  Polypogon monspeliensis Lowell Ahart 2002-5-7 9635 Butte High banks of a pond, at the beginning of a southeast branch of Schirmer Ravine, about 50 yards east of the pond on the east side of Cherokee Road, North Table Mountain, about 4 miles (air) north of Oroville. 228 Comment
  CHSC10673  Polystichum imbricans Lowell Ahart 1966-3-13 Butte Near Enterprise. 182 Comment
  SEINET10530120  Polystichum imbricans Mary Susan Taylor 1979-10-5 Taylor 2232 Butte T23N R4E sec 18. SE side of Paradise Lake (from picnic area to first creek coming into lake, along road), ca. 0.5 mi N of Coutolenc Rd, ca. 5 mi N of Magalia. 732 Comment
  CHSC78231  Polystichum imbricans subsp. imbricans Lowell Ahart 2000-6-27 8528 Butte Along the wash and north of the trail to Big Bald Rock, about 3 miles (air) east of madrone Lake, about 12 miles (air) northeast of Oroville. 975 Comment
  JEPS106115  Polystichum imbricans subsp. imbricans Lowell Ahart 2004-6-22 11117 Butte On the east side of Doe Mill Road, about 1/4 mile southeast of the bridge across Butte Creek, about 2 1/4 miles (air) southeast of Forest Ranch, about 5 miles (air) west of Stirling City 628 Comment
  CAS-BOT-BC76700  Polystichum munitum M. S. Taylor 1978-7-21 1799 Butte Lake Madrone at its jct. with Oroville-Quincey Hwy. ca. 10 mi. NE of Oroville. 609 Comment
  SD234000  Polystichum munitum Virginia Pinkus Ryder 1965-4-4 400 Butte Megalia, Feather River. 701 Comment
  CHSC33402  Populus tremuloides R. E. Preston 1981-7-9 21 Butte Ca. 75 m of West Branch of Feather River, ca. 0.5 km s of Snag Lake, ca. 4.8 km sse of Jonesville. 1708 Comment
  UCD138221  Potamogeton berchtoldii E. B. Copeland 1931-7-20 604 Butte Jonesville. 1650 Comment
  CHSC75435  Potamogeton diversifolius Lowell Ahart 1999-6-12 8089 Butte In a pond, on the west side of the dam, large reservoir north of Beatson Hollow, North Table Mountain, about 2 1/2 miles (air) west of the entrance gates along the west side of Cherokee Road, about 7 miles (air) north of Oroville. 295 Comment
  RSA754920  Potamogeton pusillus subsp. tenuissimus Robert A. Schlising 2005-9-16 4463 Butte East of Jonesville and east of Snag Lake, in Summit Lake. 1890 Comment
  CHSC65475  Potamogeton pusillus var. pusillus Vernon Oswald 1988-5-19 3327 Butte 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 pond in an old channel of the Sacramento River. 45 Comment
  CHSC8765  Potamogeton pusillus var. tenuissimus S. Chulasmai 1966-5-20 44 Butte Horseshoe Lake. Comment
  CHSC45584  Potentilla glandulosa subsp. glandulosa L. P. Janeway 1987-5-10 2035 Butte Butte Cr between Forks of Butte and the bridge (Doe Mill Rd). 609 Comment
  SEINET10483224  Potentilla gracilis subsp. nuttallii Mary Susan Taylor 1978-6-24 Taylor 1666 Butte Montane Meadow, on N side of Old Humboldt Road, across the road from Butte Meadows; Yellow Pine Forest. 1372 Comment
  UC398922  Potentilla gracilis var. fastigiata E. B. Copeland 1929-7-24 372 Butte Jonesville 1550 Comment
  CHSC52221  Prunella vulgaris var. lanceolata L. P. Janeway 1987-8-4 2415 Butte Along West Branch Feather R at bridge 1.8 mi from Inskip. 1341 Comment
  CHSC109092  Prunus Lowell Ahart 2012-4-20 17901 Butte On the south side of Guardian Trail, about 40 yards southwest of Pine Trail, about 1/4 mile west of Highway 32, about 8 1/2 miles northeast of Chico, south part of Upper Bidwell Park. 361 Comment
  CHSC9388  Prunus M. MacArthur 1968-6-12 329 Butte NW side of Aymer Jay Hamilton School, Chico State College campus. 60 Comment
  CHSC48865  Prunus avium Vernon Oswald 1987-3-30 2303 Butte Dredger tailings on the w side of Hwy 99 ca. 0.5 mi nw of Butte Creek Bridge. On the edge of a pond. 65 Comment
  CAS-BOT-BC159920  Prunus emarginata E. B. Copeland 1931-7-28 650 Butte Jonesville. On ridge west of North Willow Creek 1650 Comment
  CHSC52698  Prunus laurocerasus L. P. Janeway 1990-3-25 3658 Butte Campus of California State University, Chico. Along E side of Trinity Hall. 59 Comment
  CHSC36394  Pseudobahia heermannii Donald M. Burk 1982-4-24 112 Butte Ca. 0.6 mi. W. of Elliot Spring House, along top of canyon on N. side of Neal Rd. 243 Comment
  CHSC60656  Pseudobahia heermannii Vernon H. Oswald; Jim Snowden 1993-3-18 5233 Butte Near the stream draining Nugen Canyon, on the SE side of Neal Rd., about 0.25 mi. southeast of 'The Narrows. 109 Comment
  CHSC39347  Pseudognaphalium luteoalbum Lowell Ahart 1983-6-26 4151 Butte Along the edge of Ponderosa Way, about 1 1/2 miles south-east of the East Fork of Canyon Creek, about 14 1/2 miles north-east of Oroville. Note: the sign gives Big Ridge Road instead of Ponderosa Way. 575 Comment
  CHSC92512  Pseudognaphalium luteoalbum Lowell Ahart 2005-12-11 12511 Butte On the sides of small ditches, on the Rice Experiment Station, between the Main Ditch and Stine Lateral, on the north side of Hamilton Road, about 1/4 mile east of Riceton Highway, about 2 1/4 miles (air) east of Biggs. 30 Comment
  CHSC45672  Pseudognaphalium stramineum Vernon Oswald 1988-5-2 3292 Butte Harter's Cherokee Ranch located on the w side of Hwy 99 between Hwy 149 and Dry Creek. 60 Comment
  CAS-BOT-BC357587  Pseudognaphalium stramineum A. A. Heller 1918-9-3 13087 Butte 8 miles north of Oroville Comment
  CHSC32753  Pseudognaphalium thermale J. D. Jokerst 1981-4-3 1283 Butte Near the top of the S side of Butte Cr. Canyon. 365 Comment
  SEINET10530888  Pseudotsuga menziesii Mary Susan Taylor 1975-2-23 Taylor 388 Butte Ca. 3 mi E of Hwy 32, along a dirt road, ca. 5 mi N of Forest Ranch. Associates: Ceanothus prostratus, Arctostaphylos, Smilax californica, Pteridium aquilinum. Yellow Pine Forest. 671 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
  UCD135260  Psilocarphus brevissimus L. Ahart 1977-4-15 1302 Butte Peter Ahart Ranch. 50 Comment
  CHSC29706  Psilocarphus brevissimus var. brevissimus J. D. Jokerst 1980-5-28 790 Butte Top of North Table Mt., S of Cherokee Rd. 403 Comment
  UCD135289  Psilocarphus oregonus L. Ahart 1978-5-12 1715 Butte Peter Ahart Ranch, Honcut. 50 Comment
  SEINET10452195  Psoralea macrostachya Lowell Ahart 1985-6-30 Ahart 5080 Butte About 2 1/2 miles north-east of Forbestown. Alt. 2850 ft. 868 Comment
  CHSC108977  Ptelea crenulata Lowell Ahart 2012-4-30 17931 Butte On both sides of South Rim Trail, about 1/2 mile southwest of the old homestead, pond, and Ten Mile House Road, about 3/4 mile west of Highway 32, about 8 miles northeast of Chico, south part of Upper Bidwell Park. 256 Comment
  CHSC109605  Ptelea crenulata Lowell Ahart 2012-5-20 18094 Butte About 10 yards east of the Guardian Trail, southeast part of Upper Bidwell Park, northeast of Chico. 356 Comment
  CHSC31774  Pterostegia drymarioides L. Ahart 1974-3-18 322 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC6647  Punica granatum M. MacArthur 1968-6-16 342 Butte Chico State College campus. NW side of Aymer Jam Hamilton School. 60 Comment
  CAS-BOT-BC462602  Pyrola dentata H. F. Copeland 1938-8-8 s.n. Butte Jonesville, near Kennedy's Meadow Comment
  CHSC51871  Pyrola picta L. P. Janeway 1987-6-26 2299 Butte At Rag Dump. 1173 Comment
  UC426928  Pyrola picta E. B. Copeland 1930-7-29 435 Butte Jonesville 1600 Comment
  SEINET10449204  Pyrola picta f. aphylla Mary Susan Taylor 1977-6-25 Taylor 1387 Butte Foothill Woodland-Yellow Pine Forest transition zone, on Ponderosa Way betwe en Cohasset and Forest Ranch. 610 Comment
  UC1609015  Pyrola picta var. picta Lowell Ahart 1993-9-8 7159 Butte North-west 1/4 Section 3. about 1 mile east of Snow Mountain 2072 Comment
  CHSC2806  Quercus Carl Pejsa 1958-3-15 99 Butte Bidwell Park Forestry Station. Comment
  CAS-BOT-BC94692  Quercus X howellii John Thomas Howell 1955-6-15 30497 Butte 6 miles from Paradise on road to Pentz 426 Comment
  RSA719539  Quercus chrysolepis Michael A. Vincent, K. Levings 2006-7-29 12887 Butte NE of Chico along Rte 32. Comment
  UCD170496  Quercus chrysolepis D. O. Burge 2017-3-18 2230 Butte Butte Creek watershed, below Doe Mill Ridge. 220 Comment
  SEINET10477873  Quercus dumosa Mary Susan Taylor Taylor 995 Butte Bidwell Park, Chico. Comment
  RSA325123  Quercus kelloggii M. S. Taylor 1981-5-21 3763 Butte S side of Lake Concow, ca. 5 mi E of Paradise. 640 Comment
  CAS-BOT-BC61580  Quercus lobata Antone Blazic 1920-12-24 s.n. Butte Hooker Oak, Chico Comment
  JEPS38059  Quercus lobata H. A. Dutton 1921-8-21 Butte Chico Comment
  UC338639  Quercus wislizeni Lemmon Jun 1891 Butte Bidwell's ranch Comment
  UC5674  Quercus wislizeni W. H. Brewer Oct 1862 1473 Butte Table Mountain, near Oroville Comment
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Jan 19 2011
  SEINET10477841  Quercus wislizeni Mary Susan Taylor 1979-3-20 Taylor 1937 Butte T21N R4E nw1/4 sec. 21. Cherokee Quad. Along old road on N side of Hwy 70 following West Branch of the Feather River, which begins at S side of bridge over N fork of Feather River, ca. 10 mi N of Oroville; limestone outcrops within Foothill Woodland. 305 Comment
  JEPS119727  Quercus wislizeni var. wislizeni Lowell Ahart, Susan Bazell, Josephine Guardino, Wes Dempsey 2012-7-5 18272 Butte Path in Cedar Grove, southwest of parking area, Lower Bidwell Park, Chico. Comment
  JEPS119979  Rafinesquia californica Lowell Ahart 2012-4-30 17928 Butte About 10 yards west of South Rim Trail, about 5/8 mile west of Highway 32, about 8 3/4 miles (air) northeast of Chico, south part of Upper Bidwell Park. Comment
  CHSC48695  Ranunculus aquatilis var. aquatilis Vernon Oswald; Lowell Ahart 1987-7-1 3072 Butte Cluster of 3 snow lakes ca. 3 mi (air) s of Humbug Summit, 0.5 mi w of the Butte-Plumas county line, ca. 5.5 mi (air) se of Jonesville. In the largest lake. 1935 Comment
  CHSC52463  Ranunculus aquatilis var. subrigidus Kirsten Tarp 1983-8-6 331 Butte N part of county, ca. 0.9 mi w of Cherry Hill; in stream. 1414 Comment
  RSA0036029  Ranunculus arvensis Lowell A. Ahart 2012-5-2 17961 Butte About 30 yards northeast of the Easter Cross Parking Lot, Upper Bidwell Park, about 1 mile east of Chico. 91 Comment
  CHSC12179  Ranunculus bonariensis var. trisepalus Lowell Ahart 1973-3-26 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC43497  Ranunculus bonariensis var. trisepalus Lowell Ahart 1979-5-20 1883 Butte On the west side of the Western Pacific Railroad, about 2 miles south of Palermo. On the edge of a deep depression. 33 Comment
  CHSC78162  Ranunculus bonariensis var. trisepalus Lowell Ahart 2000-6-6 8460 Butte In a deep depression, on the bottom of an old gold mining pit, just southeast of where the dirt road crosses Oregon Gulch creek, about 1/4 mile northeast of the cemetery, about 1 1/2 mile south of Crystal Hill, about 5 miles (air) east of Oroville Dam. 304 Comment
  CHSC3513  Ranunculus canus M. Gregg 1966-2-28 24 Butte In Upper Bidwell park--East of Salmon Hole. Across road. Comment
  CHSC88973  Ranunculus canus Christine Hantelman 2000-3-2 13 Butte In old almond orchard at end of Wookey Road. 112 Comment
  POM99363  Ranunculus canus C. C. Bruce 1898-05 2437 Butte [No location data on label] Comment
  POM99241  Ranunculus muricatus C. C. Bruce 1897-04 1890 Butte [No location data on label] Comment
  CHSC3289  Ranunculus occidentalis M. L. Hillier 1966-2-28 Butte 7 1/2 miles n. by n.e. of C.S.C. Admin. building at n. end of Upper Bidwell Park. Chico. Comment
  JEPS43466  Ranunculus occidentalis Joan O. Danielson 1966-4-6 6 Butte Cherokee Rd. 1 mi. s. on way to Table Mt. 609 Comment
  UC478516  Ranunculus occidentalis E. B. Copeland 1930-6-26 642 Butte Jonesville 1550 Comment
  POM219014  Ranunculus occidentalis var. ultramontanus E. B. Copeland 1930-6-26 642 Butte Jonesville. 1550 Comment
  SBBG27175  Ranunculus occidentalis var. ultramontanus E. B. Copeland 1930-6-26 Butte Jonesville 1550 Comment
  CHSC52693  Ranunculus orthorhynchus var. orthorhynchus Kirsten Tarp 1983-7-31 316 Butte S of Butte Creek House ca. 32 air miles ne of Chico; in meadow. 1828 Comment
  POM268835  Ranunculus populago H. F. Copeland 1929-6-10 1216 Butte Jonesville. 1524 Comment
  SEINET10493588  Rhamnus californica subsp. tomentella Mary Susan Taylor 1981-6-19 Taylor 3963 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
  CHSC75529  Rhamnus crocea G. F. Hrusa; T. D. Wilfred 1997-5-8 13743 Butte Uncommon on serpentine slope facing E above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. 740 Comment
  CHSC33942  Rhamnus tomentella subsp. tomentella M. S. Taylor 1981-6-19 3963 Butte N side of Feather River Hwy 70, at nw end of Pulga bridge and along Pulga Rd, on serpentine, ca. 1/4 mi ca. 20 mi ne of Oroville. 487 Comment
  CHSC42492  Rhamnus tomentella subsp. tomentella Lowell Ahart 1987-5-9 5586 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
  UC175348  Rhamnus tomentella subsp. tomentella A. A. Heller 1912-5-23 10754 Butte n of Oroville (Table Mountain Olive Ranch) Comment
  UC80208  Rhamnus tomentella subsp. tomentella Mrs. R. M. Austin 1895-2 694 Butte Little Chico Creek Comment
  CAS-BOT-BC200684  Rhus aromatica Lewis S. Rose 1945-5-12 45026 Butte Richardson Springs 304 Comment
  CHSC51844  Rhus aromatica Steven Triano 1987-4-7 37 Butte Ca 20 ft S of Honey Run Rd ca 2.7 mi E of The Skyway, out of SE Chico. 91 Comment
  CHSC44063  Rhynchospora californica L. P. Janeway 1988-6-14 2761 Butte NW side of cyn of Little Chico Cr ca 2 air mi S of Ten Mile House. 259 Comment
  CHSC97536  Rhynchospora californica Vernon Oswald 1985-7-10 1895 Butte Upper Bidwell Park, Chico, ca. 200 ft south of Upper Park Rd. ca. 0.2 miles ne of Salmon Hole. 182 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
  JEPS98373  Rhynchospora capitellata Lowell Ahart 2000-7-11 8572 Butte 4 air mi N[?]E of Feather Falls (N side of Lumpkin Ridge Rd, upper W branch of Know-nothing Crk, 1 mi SW of int of Lumpkin R Rd, rd to Fall River, and the County Rd) 1219 Comment
  SEINET177607 Image available Ribes inerme E. B. Copeland 1931-5-9 646 Butte Jonesville 1500 Comment
  CAS-BOT-BC212668  Ribes nevadense A. A. Heller 1919-5-17 13155 Butte Banks of the Feather River, near Stirling Comment
  CHSC81517  Ribes nevadense D. Tellefson 2000-4-18 Butte Paradise Lake, north of Paradise. 700 Comment
  UC857965  Ribes roezlii A. A. Heller 1915-6-26 11031 Butte Summit of Sierra Nevada above Jonesville; Sierra Nevada 2133 Comment
  SEINET10482950  Ribes roezlii Mary Susan Taylor 1977-7-15 Taylor 1414 Butte Immediate vicinity of Butte Creek under Honey Run Covered Bridge, ca. 5 mi E of Chico. 244 Comment
  CAS-BOT-BC198959  Ribes roezlii var. roezlii Lowell Ahart 1988-3-28 5953 Butte About 1/10 mile south of Lumpkin Ride road, about 1 1/2 miles east of Camp 18, about 8 miles east of Feather Falls 1280 Comment
  UC600617 Image available Ribes viscosissimum H. F. Copeland 1931-6-11 Butte Kirby Meadows Jonesville Comment
  CAS-BOT-BC74458  Rorippa curvisiliqua Lowell Ahart 1980-8-16 2582 Butte Near Honcut. 60 Comment
  CHSC43654  Rorippa curvisiliqua var. occidentalis Vernon Oswald 1984-5-13 1186 Butte Calif. Hwy 32 at the second bridge w of Hord-Hamilton-Cana Hwy. In the bed of a slough. 39 Comment
  SEINET10448490  Rorippa curvisiliqua var. occidentalis Lowell Ahart 1985-5-31 Ahart 5040 Butte Lake Oroville, about 1/2 mile south-west of the Enter- prise Bridge across Lake Oroville, west of Lumpkin Road, north-east of Oroville. Comment
  CHSC529  Rorippa nasturtium-aquaticum M. Underhill 1952-7-21 Butte Stream. 304 Comment
  CHSC42061  Rorippa palustris var. occidentalis Lowell Ahart 1986-11-14 5458 Butte On the bottom of a pond, about 1/10 mile south of the clay burrow for Oroville Dam, 1/4 mile east of Larkin Road, about 6 miles south-west of Oroville. 36 Comment
  CAS-BOT-BC148253  Rosa woodsii var. ultramontana A. A. Heller 1928-7-10 14654 Butte Wet meadows at Butte Meadow in the yellow pine belt. Comment
  SEINET11688672  Rostraria cristata T. B. Devine 1980-1 719 Butte at jct of Pentz Rd & Pentz-Magalia Hwy Comment
  UC1191581  Rotala ramosior Herbert L. Mason, Verne Grant 1946-9-27 13134 Butte 3 mi w of Biggs Comment
  CDA37504  Rotala ramosior L. Ahart 2000-8-28 8667 Butte Northwest edge of a large man made lake, Oroville Wildlife Area, about 1/2 mile west of Oak Grove and Highway 70, about 6 miles (air) southwest of Oroville. Comment
  CHSC52468  Rubus armeniacus L. P. Janeway 1987-5-28 2119 Butte Creeklet crossing Four Trees Rd 0.2 mi up from Hwy. 70. At edge of rd. 487 Comment
  UCD168152  Rubus armeniacus Marcel Rejmanek 2017-5-19 2588 b Butte By Highway 99, ca 200 m south of the intersection with West Hamilton Road. Comment
  CAS-BOT-BC156613  Rubus bifrons Clarence R. Quick 1962-8-19 62 -80 Butte Plumas National Forest. Corner Mdw., Coyote Gap - Four Trees road 1463 Comment
  CDA31973  Rubus laciniatus L. Ahart 2009-7-9 16013 Butte On the east edge of Big Chico Creek, about 15 yards west of Ten Mile House Road, Upper Bidwell Park about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico Comment
  POM193375  Rubus parviflorus E. B. Copeland 1930-7-16 419 Butte Jonesville. 1600 Comment
  CHSC50341  Rubus pensilvanicus Vernon Oswald 1990-5-14 4212 Butte Small lake located ca. 1 mile south of Brush Creek. 996 Comment
  UCD89071  Rubus ursinus Lindsay Clark 2008-5-30 BWP 22 Butte Bidwell Park in Chico, along Yahi trail between parking lots G and H (Alligator Hole and Day Camp). 89 Comment
  CHSC38622  Rumex acetosella Vernon Oswald 1983-5-23 541 Butte Upper Bidwell Park, Chico, near Chico Creek at the east end of Yahi Trail. 207 Comment
  CAS-BOT-BC421907  Rumex acetosella Lowell Ahart 1982-5-28 3443 Butte East of North Honcut Creek, about 1 1/2 miles north and 3 miles east of Honcut 50 Comment
  JEPS119634  Rumex conglomeratus Lowell Ahart 2012-6-14 18184 Butte On the north side of Big Chico Creek, near the intersection of Arbutus and Vallombrosa Avenue, Lower Bidwell Park, Chico. Comment
  RSA754881  Rumex conglomeratus L. Ahart 2009-6-18 15912 Butte 10 yards W of the dredger piles along N Honcut Creek, about 2.5 miles N and 2.75 miles E of Honcut, about 12 miles SE of Oroville. 59 Comment
  CHSC64207  Rumex crispus S. C. Morey 1983-7-23 587 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  JEPS127063  Rumex crispus Lowell Ahart 2016-5-14 20827 Butte About 100 yards north of the waterhole, Peter Ahart Ranch, about 1 3/4 miles north and 2 3/4 miles east of Honcut, about 11miles (air) southeast of Oroville. Comment
  UCD149829  Rumex lacustris Harry A. George 1967-7-4 s.n. Butte E. of Cresta Power Station. Comment
  CHSC100897  Rumex salicifolius var. salicifolius R. A. Schlising; Lawrence Janeway 1988-8-2 4655 Butte Northern Butte County, north of Lomo and west of Butte Meadows, along Hwy 32 at Soda Springs Campground. 1139 Comment
  CHSC40787  Sagina apetala Lowell Ahart 1985-3-4 4842 Butte Along the edge of the curb, at the Palermo Post Office, Palermo. 40 Comment
  UC1562014  Sagina apetala Barbara Ertter with Lowell Ahart 1986-4-13 5896 a Butte ca. 2 airmiles n.-n.e. of Honcut (between Oroville and Marysville, Peter Ahart Ranch); Peter Ahart Ranch 30 Comment
  JEPS113284  Sagina decumbens subsp. occidentalis Lowell Ahart 2007-4-16 13673 Butte On the south side of a small wash, about 100 yards east of North Honcut Creek, about 1 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles southeast of Oroville 63 Comment
  SEINET5337060  Sagina decumbens subsp. occidentalis B. Ertter, Jeffrey L. Strachan; L. Ahart 1980-5-7 3295 Butte Peter Ahart Ranch ca 2-1/2 miles NNE of Honcut between Oroville and Marysville. 30 Comment
  CHSC23688  Sagittaria latifolia K. Stern 1970-6-1 Butte Growing in ditch in Rancho Llano Seco. Comment
  SEINET10965409  Salix exigua Mary Susan Taylor 1982-5-22 Taylor 4498 Butte T17N R1E se/se sec 3. Pennington quad. Graylodge Wildlife Refuge, Riparian Woodland at end of West Liberty Rd, ca. 12 mi sw of Gridley. 63 ft. 19 Comment
  CHSC111971  Salix exigua var. hindsiana Lowell Ahart 2012-6-5 18170 Butte On the north side of the creek, on the bottom of Beatson Hollow, about 1 mile northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 6 miles (air) north of Oroville. 280 Comment
  JEPS119882  Salix exigua var. hindsiana Lowell Ahart 2012-6-5 18170 Butte On the bottom of Beatson Hollow, about 1mile northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 6 miles (air) north of Oroville. Comment
  CHSC65019  Salix jepsonii Vernon Oswald 1988-6-20 3410 Butte Jones Meadow Rd. e of Inskip at Last Chance Creek. 1560 Comment
  CHSC8627  Salix laevigata E. Smith 1969-10-4 Butte Bidwell Park, 3 mi E Chico. Comment
  CAS-BOT-BC125177  Salix lasiandra var. lasiandra E. B. Copeland 1931-6-10 619 Butte Jonesville 1500 Comment
  CHSC108840  Salix lasiolepis Lowell Ahart 2012-4-9 17831 -A Butte Wet are in the rock corral, east of the cement dam in Big Chico Creek, west of South Rim Trail, south part of Upper Bidwell Park, about 2 miles (air) northeast of Chico. 110 Comment
  UC474239  Salix lasiolepis H. F. Copeland 1923-3-16 Butte Butte Creek Canyon; near mouth Comment
  CAS-BOT-BC129587  Salix lasiolepis var. lasiolepis Lowell Ahart 1982-5-8 3408 Butte Near the Forbestown Res, about 1 mile south-west of the Forbestown Res., about 4 miles north-east of Forbestown. 800 Comment
  CAS-BOT-BC124573  Salix lemmonii E. B. Copeland 1931-6-11 620 a Butte Jonesville, Kirby's Meadow 1750 Comment
  CAS-BOT-BC129489  Salix melanopsis Dr. E. B. Copeland 1903-7-27 3491 Butte Chico, on banks of Butte Creek Comment
  CAS-BOT-BC129492  Salix melanopsis Lowell Ahart 1987-8-8 5855 Butte On a gravel bar on the bottom of North honcut Creek, about 2 miles north and 3 miles east of Honcut about 12 miles south-east of Oroville. 67 Comment
  SEINET10869907  Salvia sonomensis Mary Susan Taylor 1975-4-25 Taylor 493 Butte Ca. 1/4 to 1/2 mi E of Cohasset Hwy, along dirt rd leading up onto ridge, ca. 10 mi NE of Chico. Soil wet red clay. Mixed Chaparral. Comment
  CHSC31560  Sambucus mexicana L. Ahart 1974-5-14 452 Butte Peter Ahart Ranch, Honcut. 45 Comment
  JEPS96095  Sambucus mexicana Vernon H. Oswald and Lowell Ahart 1996-6-10 7742 .1 Butte U.S. Fish and Wildlife Service parcel between 7 Mile Lane and Sacramento River (bank of river at n end of Riparian Sanctuary); Sacramento River National Wildlife Refuge 28 Comment
  CHSC42660  Sanicula bipinnata Vernon Oswald 1985-4-16 1721 Butte Upper Bidwell Park, Chico, on the slope bordering the s side of the Golf Course. 121 Comment
  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
  CHSC23641  Sanicula bipinnatifida M. S. Taylor 1976-3-30 1038 Butte Ca. 20 ft e of Cherokee Rd, ca. 1 mi s of Cherokee, on n side of Table Mountain. 304 Comment
  HSC38020  Sanicula bipinnatifida Thomas W. Nelson, Jane P. Nelson 1976-5-10 2480 Butte S facing slope beside Hwy. 191, 1 mi. W of Paradise Comment
  CHSC1976  Sanicula bipinnatifida var. flava M. Roberson 1956-4-9 Butte SW of Paradise, along Skyway. 426 Comment
  CHSC93458  Sanicula bipinnatifida var. flava Lowell Ahart 2006-5-8 12601 Butte Steep bank on the south side of a small stream, about 50 yards east of the fence and reservoir, about 2 1/4 miles west of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 296 Comment
  CHSC45882  Sanicula crassicaulis Lowell Ahart 1981-4-24 2783 Butte Along the sides of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 3 miles east of Honcut. 45 Comment
  CHSC83902  Sanicula tuberosa Lowell Ahart 2003-4-15 10101 Butte Slopes of Beatson Hollow, southwest of drainage entering Beatson Hollow, about 1 1/4 miles northwest of the iron gate and fence, northwest of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 284 Comment
  SEINET10483041  Saxifraga californica Mary Susan Taylor Taylor 990 Butte Bidwell Park, Chico. Comment
  POM92858  Saxifraga oregana C. C. Bruce 1898-03 2043 Butte [no locality information] Comment
  SEINET10483047  Saxifraga oregana Mary Susan Taylor 1977-7-15 Taylor 1406 Butte Butte Meadows, ca. 20 mi NE of Chico off Hwy 32. 1326 Comment
  CHSC100982  Scandix pecten-veneris L. P. Janeway 2008-4-2 9242 Butte Northern Sierra Nevada Foothills. Along edge of Pentz Road 0.6 km north of Durham-Pentz Road. Narrow gravel road shoulder. 198 Comment
  CAS-BOT-BC111661  Schoenoplectus mucronatus Herbert L. Mason 1946-9-27 13135 Butte 3 miles west of Biggs. 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
  RSA700279  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-BC111655  Schoenoplectus mucronatus M. K. Bellue 1947-6-1 s.n. Butte 2 miles south of Palermo. 35 Comment
  NY663861  Schoenoplectus mucronatus L. Ahart 1980-9-8 2592 Butte Peter Ahart Ranch, Honcut 50 Comment
  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
  CHSC56809  Scirpus congdonii L. P. Janeway; R. A. Schlising, B. Castro, Pauleen Broyles 1987-7-19 2492 Butte Wet meadow along Skyway (Humbug Summit Road) ca 5 1/2 mi north of Inskip; at the Cornelia Lott Sank Memorial Spring. 1539 Comment
  CAS-BOT-BC5833  Scirpus diffusus E. B. Copeland 1929-7-19 343 Butte Jonesville 1550 Comment
  CHSC56813  Scirpus microcarpus L. P. Janeway 1987-7-4 2414 Butte Along West Branch Feather River at bridge 1.8 mi from Inskip. 1341 Comment
  SEINET10467401  Scirpus robustus Mary Susan Taylor 1982-5-22 Taylor 4503 Butte T17N R2E nw/ne sec 19. Pennington quad. Graylodge Wildlife Refuge, near parking lot 6 on Rutherford Rd, e of Pennington Rd, ca. 12 mi sw of Gridley. 70 ft. 21 Comment
  SEINET10508333  Scribneria bolanderi Mary Susan Taylor 1984-4-6 Taylor 5402 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
  CHSC80571  Secale cereale Lowell Ahart 2001-5-10 8741 Butte On the sides of the dirt road east of the large pump, on the south side of Evans-Reimer Road, about 1 mile east of Pennington Road, Gray Lodge Waterfowl Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  CAS-BOT-BC415018  Sedella pumila A. A. Heller; H. E. Brown 1902-5-7 5486 Butte Berry Canyon (near Clear Creek) Comment
  CHSC39596  Sedella pumila Lowell Ahart 1983-4-10 3932 Butte About 1/2 mile north-east of Highway 99 and Pentz Road. 65 Comment
  SFV1575  Sedella pumila M. L. Vincent 1962-4-15 192 Butte Sierra Nevada Skyway. 4 miles west of Paradise, overlooking Butte Canyon. 215 Comment
  CAS-BOT-BC63852  Sedum spathulifolium Helen M. Edwards 1917-6-6 s.n. Butte De Salbla Comment
  CHSC116966  Sedum spathulifolium Matthew Forster 2013-4-25 Butte Along 14 Mile House Rd. 472 Comment
  CHSC31518  Selaginella wallacei L. Ahart 1973-12-28 292 Butte Peter Ahart Ranch, Honcut. 45 Comment
  RSA726781  Selaginella wallacei Lowell A. Ahart 2007-2-24 13584 Butte Peter Ahart Ranch, about 3.4 mile north and 2 2/3 miles east of Honcut, about 12 miles southeast of Oroville. 53 Comment
  SEINET10471204  Selaginella wallacei Lawrence P. Janeway 1984-9-29 Janeway 1176 Butte Brush Creek Quad, T21N R6E NW 1/4 of sec. 35, 1850 feet. Near Feather Falls overlook on Fall River (a tributary to Middle Fork Feather River). "Feather Falls Scenic Area". On N-facing rock faces (granite), partially shaded, with mosses. 565 Comment
  CHSC26844  Senecio aronicoides M. S. Taylor 1978-6-24 1636 Butte On n side of Old Humboldt Rd, ca. 1/2 mi e of Butte Meadows. 1371 Comment
  CHSC76039  Senecio aronicoides G. F. Hrusa; T. D. Wilfred 1997-5-7 13741 Butte Sierra Nevada. At summit of SSE slope above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. [Original Lat./Long. on label is '39 51 N; 121 34 W']. 750 Comment
  CHSC8148  Senecio aronicoides D. McClain 1969-3-20 84 Butte 1/2 mi. e. of Hooker Oak along the Chico Creek, Upper Bidwell Park, Chico. 64 Comment
  CHSC24645  Senecio integerrimus var. major S. Deaton 1976-4-23 38 Butte 20 ft sw of Feather Falls trail, ca. 1 3/4 mi n of Falls parking lot. 853 Comment
  CHSC93517  Senecio sylvaticus L. P. Janeway 2006-4-23 8558 Butte Northern Sierra Nevada Foothills. North Table Mountain; at head of northern drainage into Campbell Creek/Beatson Hollow, 600 m north-northeast of Phantom Falls. 393 Comment
  UCD135758  Senecio sylvaticus Robert E. Preston 1988-5-4 590 Butte 6 miles north of Oroville, on Table Mountain. 396 Comment
  CHSC101087  Senecio vulgaris Lowell Ahart; John Dittes 2009-3-20 15502 Butte Open area along the Guardian Rock Trail, about 150 yards southwest of the Ten Mile House Road Trail, about 300 yards west of Highway 32, west of the intersection of Highway 32 and Ten Mile House Road, Upper Bidwell Park, about 10 miles northeast of Chico. 407 Comment
  CHSC113286  Senecio vulgaris Lowell Ahart 2014-4-15 19353 Butte Steep sides of rocky point, 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. 253 Comment
  CHSC420  Senecio vulgaris P. Delaplane 1965-3-20 4 Butte In back yard of 817 Rio Chico Way, Chico. 30 Comment
  CHSC42455  Senecio vulgaris Lowell Ahart 1987-5-6 5505 Butte On a gravel bar along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  UC2026877  Sequoiadendron giganteum Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18009 Butte Southeast of the horse path, on the south side of the paved park road, south of the old walnut orchard, south Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
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Jul 25 2018
  UCD92705  Setaria pumila Beecher Crampton 1957-9-17 4617 Butte Biggs Rice Exper. Station, 5 miles northwest of Biggs. Comment
  JEPS87673  Sherardia arvensis Lowell Ahart 1994-4-22 7287 Butte about 3.5 mi sw Forbestown (s of the intersection of Black Bart Road and Forbestown Road) 609 Comment
  SEINET3449124  Sibara virginica Unknown 2003-5-9 10123 Butte Gridley, Gridley, about 3 miles by air southwest, along the southwest corner of a prune orchard on the north side of Evans Reimer road, about 0.75 miles west of Block Road 20 Comment
  CHSC105800  Sibbaldia procumbens Lowell Ahart 2010-9-28 17254 Butte About 20 yards west of Big Kimshew Creek, meadow, about 100 yards east of the poor dirt road, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1886 Comment
  RSA4644  Sibbaldia procumbens E. B. Copeland 1930-7-6 418 Butte Jonesville. 2000 Comment
  RSA32820  Sidalcea A. A. Heller 1942-5-27 16479 Butte Clear Creek Schoolhouse, Clark Road. Comment
  SEINET5629718 Image available Sidalcea asprella A. A. Heller, H. E. Brown. 1902-1 5496 Butte Berry Canyon Comment
  CHSC1045  Sidalcea calycosa F. Johnson 1937-7-25 Butte Above Covered Bridge, on Butte Creek. 152 Comment
  CHSC10820  Sidalcea diploscypha Lowell Ahart 1972-5-20 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC54184  Sidalcea diploscypha Vernon H. Oswald; Lowell Ahart 1991-5-31 4635 Butte Dan Beebe Trail in the Lake Oroville State Recreation Area, on the south side of Thermalito Diversion Pool, on the southwest side of Glen Pond. 79 Comment
  JEPS100685  Sidalcea gigantea Dean W. Taylor 1995-8-6 15380 Butte 3 air mi NE of Stirling City (near Jackass Flat); Plumas National Forest 1219 Comment
  SFV2295  Sidalcea hartwegii B. Fuller 1962-5-8 s. n. Butte Sierra Nevada Paradise. 0.5 miles west of 5330 Harrison Road. At the spring. 480 Comment
  UC398675  Sidalcea hartwegii A. A. Heller 1927-5-7 14366 Butte along Little Chico Creek (in the gravelly bed of Little Chico Creek); along Little Chico Creek Comment
  CHSC34948  Sidalcea oregana subsp. spicata R. A. Schlising 1980-7-11 3886 Butte NE part of County. Elks' Retreat site. 1365 Comment
  CHSC39411  Sidalcea oregana subsp. spicata L. Ahart 1983-8-16 4308 Butte In small mountain meadow, near Bull Hill Rd, ca. 3.5 mi south of Butte Meadows. 487 Comment
  CDA30191  Silene antirrhina L. P. Janeway, David Toren, Heather Koeth, Duryea Delacroix 2008-6-11 9406 Butte Northern Sierra Nevada Foothills; Plumas National Forest; along French Creek Road about 3.0 road km northeast of Oroville-Quincy Hwy and 1.0 air km west of Mountain House; slopes east above Mosquito Creek. Old road cutbank. Comment
  UC1586524  Silene bernardina Lowell Ahart 1991-9-19 6729 Butte about 2 mi ne Coyote Gap (about 2 mi nw of Four Trees, near where the two branches of Wildcat Creek come together); Wildcat Creek, nw of Four Trees, ne of Coyote Gap 1219 Comment
  CHSC3822  Silene californica var. californica L. E. Dunkel 1965-4-20 29 Butte Along south side of Cohasset Road ca 2.5 n and ca 2.5 ne of main entrance gate at Chico Municipal Airport. 120 Comment
  CHSC11855  Silene douglasii var. douglasii E. B. Copeland 1931-6-19 634 Butte Jonesville. Near 'the Summit. 2100 Comment
  CHSC11054  Silene gallica Lowell Ahart 1966-5-7 Butte Peter Ahart Ranch, Honcut. 45 Comment
  JEPS115630  Silene gallica Lowell Ahart 2009-5-15 15690 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
  CDA33638  Silene gallica R. A. Price 2010-5-1 s.n. Butte Along Oroville Reservoir; northwest of bridge. 0 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
  CHSC6138  Silybum marianum J. Wheeler 1968-5-17 369 Butte S side of e approach to Sacramento River Bridge on hwy. 32. Comment
  JEPS98990  Sinapis alba Lowell Ahart 2001-4-15 8723 Butte On the north side of the dirt road east of the large pump, on the south side of Evans-Reimer road, about 1 mile east of Pennington road, Gray Lodge Waterfowl Management Area, about 4 miles (air) SW of Gridley. 22 Comment
  CHSC113480  Sisyrinchium bellum Lowell Ahart 2014-7-10 19619 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1664 Comment
  SEINET10469806  Sisyrinchium elmeri Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4759 Butte About 1/2 mile east of Bald Mountain, about 5 miles north-east of Stirling City. Comment
  CHSC20500  Smilax californica M. S. Taylor 1975-6-25 805 Butte Along Mud Creek, ca. 1/4 mi n of Richardson Springs Hotel, ca. 6 mi n of Chico. 213 Comment
  CDA42899  Solanum americanum L. Ahart 2012-6-14 18185 Butte On the south side of the path, south of CARD Community Center, Lower Bidwell Park, Chico. Comment
  CHSC40897  Solanum americanum Lowell Ahart 1985-11-5 5225 Butte About 90 feet below the high water line of Lake Oroville, about 1/2 mile west of the Ponderosa Dam, near where Sucker Creek flows into the South Fork of the F eather River. 274 Comment
  CHSC76422  Solanum americanum Lowell Ahart 1999-10-28 8319 Butte Along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CHSC32733  Solanum parishii M. S. Taylor 1981-4-8 3502 Butte W side of Dark Canyon Rd, ca. 3 mi s of its jct with Big Bend Rds jct, ca. 4 air mi s of Jarbo Gap on Hwy 70. 365 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
  SEINET10839147  Solidago canadensis subsp. elongata Mary Susan Taylor 1978-7-21 Taylor 1832 Butte On N side of Oroville-Quincy Hwy, in open meadow, ca. 1 mi S of Butte-Plumas County line; Yellow Pine Forest. 1341 Comment
  CAS-BOT-BC365380  Solidago elongata A. A. Heller 1914-7-23 11611 Butte Chico Meadows 1219 Comment
  CHSC43174  Solidago elongata Robert Banchero 1981-7-24 627 Butte Chico Meadows, 0.95 mi n of jct Humboldt Rd and Skyway. 1316 Comment
  CHSC116718  Soliva sessilis Lowell Ahart 2016-5-24 20856 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
  CHSC82441  Soliva sessilis Lowell Ahart 2002-5-7 9613 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
  CHSC111368  Sonchus oleraceus Lowell Ahart 2012-5-14 18061 Butte Planted area between sidewalk and Vallombrosa Avenue, west of Manzanita Avenue, just west of the bridge across Big Chico Creek, Lower Bidwell Park, Chico. 79 Comment
  CHSC63240  Sonchus oleraceus Lowell Ahart 1994-3-30 7280 Butte Garden area at the north-east corner of Oregon City School House, Oregon City, about 7 miles north of Oroville. 365 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
  SEINET10933086  Sparganium emersum var. multipedunculatum Mary Susan Taylor, Lowell Ahart 1981-8-16 Taylor 4195 A 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
  CHSC30779  Spartium junceum M. S. Taylor; L. Ahart, R. S. Schlising 1980-4-3 2751 Butte Kunkle Reservoir, e side, ca. 1/4 mi e of Pentz-Magalia Hwy, ca. 2 mi s of Paradise. 441 Comment
  CHSC51876  Spartium junceum L. P. Janeway 1988-6-5 2733 Butte Cyn of Big Chico Cr ca 1 mi NE of the end of Upper Park Rd. 213 Comment
  CHSC51877  Spartium junceum L. P. Janeway 1988-6-14 2792 Butte Ridgetop along hwy 32 0.9 mi N of Ten Mile House. 518 Comment
  JEPS117229  Spergularia bocconi Lowell Ahart 2010-5-7 16610 Butte Area of erosion control, disk golf area, on a ridge about 200 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 369 Comment
  CHSC112244  Spergularia rubra Lowell Ahart 2013-4-29 18657 Butte In corral at the barn, about 1/4 mile north of the Honcut Cemetary, about 3 1/4 miles (air) northeast of Honcut. 47 Comment
  CHSC28823  Spergularia rubra J. D. Jokerst; T. B. Devine, D. Greenstein 1979-5-18 415 Butte Top of north Table Mt, ca 1.0 mi n of Cherokee Rd. Along dirt roads. 381 Comment
  SEINET10537501  Spergularia rubra Mary Susan Taylor 1981-5-27 Taylor 3804 A Butte T23N R3E se sec 12, Paradise SE quad. Prostrate mats in beaten path, nw end of Paradise Lake near old barn, ca. 3 air mi n of Magalia. 2600 ft. 792 Comment
  CHSC48918  Spiraea densiflora Vernon Oswald 1983-8-17 992 Butte On Humboldt Peak, n-e of Jonesville. 2158 Comment
  CHSC94495  Spiraea douglasii Lowell Ahart 2006-8-15 13184 Butte East part of a large meadow with bogs, 15 yards west of Willow Creek, about 100 yards southeast of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1569 Comment
  RSA724890  Spiraea douglasii L. Ahart 2006-8-15 13184 Butte 10 yards W of Willow Creek. About 100 yards SE of the cabin. About 3/4 air mile NW of Jonesville. About 5 air miles NE of Butte Meadows. 1570 Comment
  CHSC71204  Spiranthes porrifolia Lowell Ahart 1998-6-9 8000 Butte Northwest of th cow chute on the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 396 Comment
  CHSC49641  Spirodela polyrhiza Vernon Oswald 1987-4-20 2334 Butte Butte Creek Preserve on the s side of the creek ne of the Skyway. On the edge of a dredger pond. 85 Comment
  CHSC52205  Stachys ajugoides var. rigida L. P. Janeway 1988-7-2 2957 Butte Along road to Coyote Gap 2.6 mi from bridge on French Cr. 982 Comment
  UC196365  Stachys ajugoides var. rigida A. A. Heller 1914-7-16 11577 Butte hills 8 mi n Oroville Comment
  UC884348  Stachys ajugoides var. rigida A. A. Heller 1915-5-28 11907 Butte near Cohasset; Sierra foothills Comment
  SEINET8037324  Stachys chamissonis H. E. Brown 1897-1 836 Butte Near Clear Creek. Comment
  SEINET10498820  Stachys palustris subsp. pilosa Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4217 Butte T21N R5E nw sec 31. Ca. 2.5 mi w on Bloomer Hill Rd from Oroville-Quincy Hwy, ca. 13 mi n of Oroville. Foothill Woodland; 500 m. 500 Comment
  POM193437  Stachys rigida subsp. rivularis E. B. Copeland 1930-7-20 s.n. Butte Jonesville 1500 Comment
  CHSC45266  Stellaria calycantha V. Oswald; L. Ahart 1988-10-6 3706 Butte Meadow near the headwaters of Big Kimshew Creek, ca. 1.5 mi (air) ne of Jones Meadow. On the bed of the creek. 1889 Comment
  CHSC48274  Stellaria calycantha Vernon Oswald 1987-7-13 3115 Butte Near the intersection of a Forest Service road and the sw branch of Butte Creek, ca. 1 mi (air) se of Summit Lake, ca. 1 mi (air) e of Snow Mt, ca. 4.75 mi (air) se of Jonesville. In bed of a streamlet. 1853 Comment
  SEINET10537516  Stellaria longipes Mary Susan Taylor 1978-6-24 Taylor 1655 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
  CHSC65336  Stellaria obtusa Lowell Ahart 1995-10-3 7675 Butte East of the dirt road, along a small branch of Willow Creek, about 1/2 mile west of Humbug Summit. 1981 Comment
  UC1594701  Stellaria umbellata Lowell Ahart 1992-7-21 6816 Butte about 2 air mi ne Philbrook Reservoir (on s side of Coon Hollow, nw of a snow lake); Coon Hollow 1737 Comment
  CHSC11835  Stephanomeria lactucina E. B. Copeland 1930-7-24 500 Butte Jonesville. 1550 Comment
  SD216  Stipa E. B. Copeland 1929-7-16 335 Butte Jonesville, scattered in low woods 1500 Comment
  SEINET10508401  Stipa pulchra Lowell Ahart 1983-6-15 Ahart 4055 Butte Peter Ahart Ranch, ca. 2.5 mi ne of Honcut. Foothill Woodland; 50 m. Along the edges of North Honcut Creek. 50 Comment
  SEINET10480710  Streptanthus Mary Susan Taylor 1979-6-12 Taylor 2306 Butte Magalia serpentine area down to Feather River. With J.D. Jokerst & L. Ahart. 671 Comment
  CHSC38026  Streptanthus drepanoides R. E. Preston 1982-6-2 293 Butte Ca. 0.6 mi ese of Kunkle Reservoir, on W. Branch Feather River arm of Lake Oroville, ca. 4.5 mi se of Paradise. 280 Comment
  CHSC48347  Streptanthus longisiliquus Vernon Oswald 1983-6-22 748 Butte On the s side of Humboldt Rd. (to Butte Meadows) 3.3 mi n-e of Calif. Hwy 32. 1386 Comment
  CAS-BOT-BC87442  Streptanthus polygaloides A. A. Heller 1938-5-28 15120 Butte 23 miles east of Oroville on Highway #24. Comment
  RSA716323  Streptanthus polygaloides L. P. Janeway 2005-5-29 8414 Butte Northern High Sierra Nevada. Top of Rocky Ridge towards its southern end; 2.9 km SW of Pulga. 960 Comment
  SEINET10448514  Streptanthus polygaloides Lowell Ahart, Peter Ahart 1983-6-30 Ahart 4178 Butte T22N R4E nw/nw sec 1. Ca. 1.5 mi ne of Concow Reservoir. Foothill Woodland; 550 m. NE of Oroville. 550 Comment
  CAS-BOT-BC87513  Streptanthus tortuosus 1929-4-1 s.n. Butte Flower Show. Comment
  CHSC62098  Streptanthus tortuosus var. tortuosus L. P. Janeway 1993-6-23 4397 Butte Plumas National Forest. Upper end of Galen Ridge, 250 ft northwest of Bald Rock Road 0.7 mi southwest of Oroville-Quincy Hwy. 1036 Comment
  SEINET10940278  Styrax officinalis var. fulvescens Mary Susan Taylor 1978-7-21 Taylor 1837 Butte Big Bald Rock, ca. 2 mi E of Lake Madrone, ca. 10 mi NE of Oroville; Yellow Pine Forest, granite soils. 998 Comment
  CAS-BOT-BC48059  Styrax redivivus M. S. Taylor 1978-7-21 1837 Butte Big Bald Rock, ca. 2 mi e of Lake Madrone 997 Comment
  JEPS115609  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
  UCD169270  Symphyotrichum ascendens Lowell Ahart; John Dittes 2008-8-25 15293 Butte Pit River, about 1/8 mile east of County Road 91, about 3.8 miles (air) north-northeast of Lookout. 1273 Comment
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Oct 5 2019
  CHSC28624  Symphyotrichum chilense M. S. Taylor 1979-10-3 2220 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
  JEPS119919  Symphyotrichum chilense Lowell Ahart 2012-10-20 18486 Butte On the south side of Big Chico Creek, on the east side of the bridge, north of the restrooms, about 200 yards west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CHSC42995  Symphyotrichum spathulatum var. intermedium Lowell Ahart 1987-7-3 5785 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles southeast of Jarbo Gap. 271 Comment
  CHSC46610  Symphyotrichum spathulatum var. intermedium Vernon H. Oswald 1989-7-27 3899 Butte Meadow at Butte Creek House, ca. 3.3 mi (air) SE of Jonesville. 1767 Comment
  CHSC69671  Symphyotrichum spathulatum var. spathulatum Vernon H. Oswald 1987-7-16 3123 Butte West Branch of the Feather River upstream of where it crosses the road to Jones Meadow, ca. 1 mi (air) NE of Inskip. 1341 Comment
  CHSC46101  Symphyotrichum spathulatum var. yosemitanum J. D. Jokerst; R. A. Schlising 1982-10-7 1655 Butte Eastern most pond in the chain of ponds that occurs on the bench along the south edge of Coon Hollow. 1706 Comment
  CHSC46339  Taraxacum officinale Lowell Ahart 1989-5-29 6318 Butte Near the dirt road, just west of Pinkard Creek, about 1/4 mile north of the Lost Creek Dam. 1005 Comment
  CHSC37540  Tauschia kelloggii J. D. Jokerst 1982-5-16 1572 Butte Ponderosa Way ca 1/2 mile N of its junction w/ lower Forbestown Rd. 731 Comment
  CHSC110455  Tellima grandiflora L. P. Janeway 2013-5-19 11110 Butte Northern High Sierra Nevada. Southeast-facing slope of inner canyon of North Fork Feather River +/- overlooking Cresta, along Camp Creek Road 1.7 road km northeast of Dixie Road. 670 Comment
  CHSC12405  Tellima grandiflora Lowell Ahart 1973-5-31 Butte Near Little North Fork, Feather River. 1066 Comment
  JEPS104143  Thelypteris nevadensis Lowell Ahart 2003-8-26 10545 Butte On the w side of the dirt road, 1/4 mi n of where Pinkard Creek flows into the Lost Creek Reservoir, ca 1/2 mi n of the Lost Creek Reservoir Dam, 1 mi (air) nw of the Sly Creek Reservoir Dam. 996 Comment
  CHSC11376  Thysanocarpus curvipes Lowell Ahart 1971-4-5 Butte Peter Ahart Ranch, Honcut. 45 Comment
  JEPS43467  Thysanocarpus curvipes Joan Danielson 1966-4-6 22 Butte Cherokee Road just past Oregon Gulch Road 609 Comment
  CHSC71169  Thysanocarpus curvipes var. elegans Lowell Ahart 1998-6-9 7997 Butte About 1/2 mile northwest of the lone oak tree, northwest of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 396 Comment
  SEINET10475627  Tofieldia glutinosa subsp. occidentalis Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4758