Search Results — 2000 specimen records retrieved (1593 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)

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

Mapping Options:

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

Download Options:
Select all records · Select records with coordinates

Include annotations and voucher information

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

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

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

Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page.
Turn on yellow flags to show possible range discrepancies. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC1134156  Abies concolor J. E. Sowder, C. G. Albertson 1933-6-26 96 Butte 0.25 mi sw of Yankee Hill; Chico Quadrangle 487 Comment
  CHSC97719  Abutilon theophrasti Lowell Ahart 2007-10-31 14516 Butte West of the official parking area, strand of Lake Oroville, Foreman Creek Area, about 1 mile south of Highway 162 (Oroville Quincy Road), about 7 miles (air) northeast of Oroville. 224 Comment
  CHSC26690  Acer glabrum var. torreyi M. S. Taylor; M. Hayes, R. Schlising 1977-8-17 1491 Butte Scattered on N side of Scotts John Rd, ca. 1.4 mi S of its jct with Old Humboldt Rd, near Jonesville. 1981 Comment
  CHSC116971  Acer macrophyllum Danielle Gee 2013-4-27 Butte Dark Canyon Road, about 0.5 mile off Hwy 70. 572 Comment
  UC201330  Achillea millefolium A. A. Heller 1917-7-26 12835 Butte open places in the yellow pine forest Butte Meadows 1402 Comment
  SEINET10904839  Achillea millefolium var. lanulosa Lowell Ahart 1985-5-15 Ahart 4991 Butte East of the dirt road, about 1 1/2 miles north-east of Concow Reservoir. north-east of Oroville. Comment
  CHSC27659  Achnatherum lemmonii Robert A. Schlising 1978-4-23 3229 Butte Magalia; just S of the Magalia Reservoir (just W of S. T. RR and Coutelenc Road). Comment
  CHSC39505  Achnatherum lemmonii Lowell Ahart 1983-6-15 4054 Butte Along the edges of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 3 miles east of Honcut. 50 Comment
  CHSC46072  Achnatherum lemmonii J. D. Jokerst; R. Schlising, M. Foster 1983-5-24 1780 Butte Along the disturbed edges of Bean Creek Rd. Ca 4/5 mile east of Little Bald Rock. Comment
  CHSC44250  Achnatherum occidentale subsp. occidentale V. Oswald 1988-7-13 3583 Butte Road to High Lakes e of Philbrook Reservoir. 1859 Comment
  CHSC33954  Achnatherum stillmanii M. S. Taylor; L. Ahart 1981-8-15 4178 Butte Both sides of Skyway, 1.8 mi s of Inskip. 1249 Comment
  UC1499974  Achnatherum stillmanii Lowell Ahart 1983-8-16 4302 Butte 3 mi s near Bull Hill Road Butte Meadows 1600 Comment
  CHSC3811  Achyrachaena mollis L. E. Dunkel 1965-3-30 10 Butte Along Pentz Road ca. 1 mi e of junction with Clark Road. 45 Comment
  HSC68162  Achyrachaena mollis J. P. Smith, J. O. Sawyer 1973-4-14 6044 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  SBBG17315  Achyrachaena mollis M. Vincent 1962-4-15 191 Butte Skyway, 4 mi W of Paradise, overlooking Butte Crk Cyn Comment
  CHSC50667  Acmispon argophyllus var. fremontii Lowell Ahart 1990-5-25 6482 Butte Near 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. 274 Comment
  SBBG121600  Acmispon argophyllus var. fremontii L. Ahart 2007-5-29 13937 Butte E side of Bald Rock Dome on W side of the Dome Trail, ca. 2 mi (air) NE of Big Bald Rock, ca. 16 mi (air) NE of Oroville 585 Comment
  CHSC58948  Aconitum columbianum Lowell Ahart 1992-7-26 6844 Butte Along a stream, about 1/2 mile north of the Carr Mine, about 2 (air) miles south of Snow Mountain. 1767 Comment
  CHSC39124  Aconogonon phytolaccifolium R. A. Schlising 1983-7-24 4341 Butte E of Stirling City, at creek in Breakneck Canyon. 1417 Comment
  CHSC53696  Actaea rubra Kirsten Tarp 1983-7-31 321 Butte Philbrook Reservoir, sw of store. 1706 Comment
  UC444992  Actaea rubra E. B. Copeland June, 1930 Butte woods near Butte Creek Jonesville 1550 Comment
  CHSC26741  Adenocaulon bicolor M. S. Taylor 1977-8-17 1466 Butte On edge of Montane Meadow, ca. 25 ft S of Old Humboldt Rd, ca. 3.4 mi E of Butte Meadows. 1341 Comment
  CHSC48839  Adenostoma fasciculatum Vernon Oswald 1986-5-6 1994 Butte Cohasset Ridge along the dirt road paralleling Cohasset Hwy on the south. 457 Comment
  SEINET10529849  Adiantum capillus-veneris Mary Susan Taylor 1979-10-3 Taylor 2217 Butte T23N R3E center of E eighth of sec 33. Riparian Woodland in Butte Creek Canyon, ca. 1/4 mi upstream from bridge crossing Butte Creek at Helltown Road, ca. 7 mi E of Honey Run Covered Bridge. 244 Comment
  CHSC23472  Adiantum jordanii T. D. Brumley 1974-5-2 4 Butte On s side of Chico creek ca. 400 yds s of Municipal Golf Course building, Chico. 152 Comment
  CHSC27785  Adiantum jordanii Bruce Hamren 1978-4-24 10 Butte West Branch of Feather River. 280 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
  CHSC9263  Adiantum jordanii D. C. Burns 1971-4-9 129 Butte Abundant ca. 1 mi e of the intersection of Manzanita Ave. and Centennial Ave. (lower Big Chico Creek Canyon, called the fern banks). 82 Comment
  POM120405  Adiantum jordanii C. C. Bruce 1897-06 1863 Butte Butte Creek Comment
  SEINET11718083  Adiantum jordanii D. B. Carlson 1980-1 11 Butte N edge of Coon Ridge, ca 0.3 km N of Skyway Road, 4.7 km E of Chico, 2.1 km WSW of Paradise 270 Comment
  CAS-BOT-BC110726  Aegilops triuncialis Lowell Ahart 1980-5-4 2162 Butte Thermalito. 65 Comment
  CHSC115426  Aesculus californica Ariana Gehrig 2013-5-2 Butte City of Chico. Big Chico Creek at Rio C hico Way. 64 Comment
  CHSC38456  Aesculus californica Vernon Oswald 1983-5-21 519 Butte Upper Bidwell Park, Chico, on the north rim 3400 ft e of the power lines. 292 Comment
  CHSC50541  Agoseris aurantiaca Vernon Oswald 1990-7-3 4344 Butte Headwaters of the east branch of Willow Creek, ca. 0.75 mi south of Humbug Summit, ca. 4.75 mi east of Jonesville. 1950 Comment
  CHSC65323  Agoseris glauca var. monticola Lowell Ahart 1995-10-3 7669 Butte Along the north side of Butte Creek House Meadow, about 2 1/2 miles (air) north-east of Snag Lake. 1767 Comment
  JEPS93835  Agoseris heterophylla Lowell Ahart 1998-7-1 8024 Butte about 7 air mi n of Oroville (about 1/2 mi n of the cow chute along Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 403 Comment
Read comments
Jan 19 2011
  CAS-BOT-BC22819  Agoseris heterophylla var. cryptopleura Lowell Ahart; James Jokerst 1985-3-24 4866 Butte W of Lunt Rd, N of Yankee Hill, about 1/2 mi N of the intersection of Lunt Rd and Hwy 70. 550 Comment
  RSA32872  Agoseris retrorsa A. A. Heller 1919-5-18 13169 Butte Stirling. 1075 Comment
  SEINET10506827  Agropyron Mary Susan Taylor, Lowell Ahart 1981-8-15 Taylor 4181 Butte T25N R4E se 1/4 se 1/4 sec 29. Paradise NE quad. Weed lot on N side of the Sky- way in Inskip. Yellow Pine Forest. 4800 ft. 1463 Comment
  JEPS106004  Agrostis elliottiana Lowell Ahart 2004-4-6 10729 Butte Pasture field, Peter Ahart Ranch, about 2 1/4 miles north and 1 1/4 miles east of Honcut, about 12 miles (air) southeast of Oroville 35 Comment
  JEPS104036  Agrostis exarata Lowell Ahart 2003-6-30 10333 Butte In the gutter on the n side of Fields Ridge Rd, n of the Ponderosa Reservoir, ca 3 mi (air) n of Forbestown. 491 Comment
  JEPS120097  Agrostis exarata Lowell Ahart 2012-6-21 18204 Butte On the south side of Big Chico Creek, about 200 yards east of the dam at Sycamore Pool, Lower Bidwell Park, Chico. Comment
  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
  CHSC108057  Agrostis hendersonii Melanie Williams; Tim Hanson, Matt Simenc, Nicole Habecker 2011-6-22 Butte Northern High Sierra Nevada. Plumas National Forest; northwest facing slopes near the top of the ridge on the southeast side of Martin Creek, 1.9 air miles northeast of Madrone Lake. 755 Comment
  CHSC96787  Agrostis hendersonii Lowell Ahart 2007-5-22 13899 Butte Along swales, on Big Bald Rock, about 14 miles (air) northeast of Oroville. 955 Comment
  CAS-BOT-BC139436  Agrostis hyemalis A. A. Heller 1914-8-6 11647 Butte In Chico Meadows. 1219 Comment
  SEINET10510279  Agrostis microphylla Lowell Ahart 1988-5-28 Ahart 6007 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville, Butte County. Uncommon. Valley Grassland. 37 Comment
  CHSC59037  Agrostis scabra Lowell Ahart 1992-7-21 6809 Butte On the south side of Coon Hollow, about 2 (air) miles north-east of Philbrook Reservoir. 1737 Comment
  UC573809  Agrostis scabra H. S. Yates 1936-8-13 6109 Butte 2.5 mi sse Butte Meadow; Paynes Creek Quad. 1493 Comment
  UC815077  Agrostis scabra A. A. Heller 1917-7-26 12847 Butte Butte Meadows 1280 Comment
  CHSC28561  Agrostis stolonifera M. S. Taylor 1978-7-21 1796 Butte Lake Madrone, at its junction with Oroville-Quincy Hwy ca. 10 mi ne of Oroville. 609 Comment
  CHSC105685  Agrostis thurberiana Lowell Ahart 2010-9-21 17214 Butte Open meadow-like area, about 70 yards east of the poor dirt road, about 80 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1917 Comment
  CAS-BOT-BC47977  Ailanthus altissima Lowell Ahart 1983-7-24 4208 Butte Forbestown Res. - Ner the dirt road at the Forestown Res., about 5 miles north-east of Forbestown. 450 Comment
  CHSC41588  Ailanthus altissima Lowell Ahart 1983-7-24 4208 Butte Near dirt road at Forbestown Res. ca 5 mi ne Forbestown. 450 Comment
  CHSC29784  Aira caryophyllea M. S. Taylor 1980-5-27 2691 Butte On Big Bald Rock, granite dome, ca. 3 mi e of Lake Madrone. 997 Comment
  CHSC31162  Aira caryophyllea M. S. Taylor 1980-3-1 2351 Butte SE facing cliff looking into Hamlin Canyon, ca. 1/2 mi e of Neal Rd, ca. 2 mi sw of Paradise. 301 Comment
  CHSC30029  Aira elegans L. Ahart 1980-5-4 2191 Butte Ca. 50 m sw of the intersection of Forbestown Rd and Hurleton Swedes Flat Rd, ca. 1/2 mi se of Hurleton. 600 Comment
  SACT000331  Aira elongata Herbert Copeland 1935-7-25 Butte 1500.0 Comment
  SEINET10497817  Ajuga reptans Mary Susan Taylor 1975-4-6 Taylor 434 Butte Chico. 52 Comment
  SEINET10841174  Albizia julibrissin Mary Susan Taylor Taylor 780 Butte Weedy or cultivated plants of Chico. 61 Comment
  CHSC61339  Alisma lanceolatum Lowell Ahart 1993-7-13 7066 Butte On the bottom of a deep wash, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  JEPS88257  Alisma plantago-aquatica Vernon H. Oswald and Lowell Ahart 1996-6-10 7764 Butte US Fish and Wildlife Service parcel between 7 Mile Lane and Sacramento River (along edge of slough near center of e side of Tract 5, Sanctuary I); Sacramento River National Wildlife Refuge, Llano Seco Unit 30 Comment
  CHSC10751  Alisma triviale Lowell Ahart 1969-5-19 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC42064  Alisma triviale Lowell Ahart 1986-11-9 5449 Butte On the bottom of a pond, about 1/10 mile south of the clay burrow for Oroville Dam, 1/4 mile east of Larkin Road, about 6 miles south-west of Oroville. 36 Comment
  CHSC96944  Alisma triviale Lowell Ahart 2007-7-8 14277 Butte On the south 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
  SEINET10465410  Alisma triviale Mary Susan Taylor 1979-11-11 Taylor 2285 Butte T20 N R1E. Ca. 6 mi S of Chico, on W side of Goodspeed-Watt Road. With Jim Jokerst. 34 Comment
  CHSC31524  Allium amplectens L. Ahart 1975-5-12 763 Butte Along edge of North Honcut Creek, Peter Ahart Ranch, Honcut. 45 Comment
  UCD18737  Allium cratericola Vernal Pool Team 2001; Carol Witham and Jennifer Buck 2001-4-10 30 Butte one mi. east of Rock River Mine and parking area, off Cherokee Rd., North Table Mountain, Oroville site. Comment
  UCSB63602  Allium cratericola Hill, Rebecca 1990-3-27 Butte Ca. 150 yds. W of Cherokee-Table Mountain Road, Table Mountain, ca. 6 mi. N of Oroville 365 Comment
  CHSC4371  Allium membranaceum R. L. Smith 1966-5-28 Butte 3 mi. w of DeSabla. Comment
  CDA13893  Allium obtusum var. conspicuum G. F. Hrusa, T. D. Wilfred 1997-5-8 13750 Butte Sierra Nevada; Near summit of slope facing SSE above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. Comment
  CHSC2934  Allium peninsulare W. Fitzwater 1958-4-19 Butte Humboldt Rd., ca. 8 mi. from Chico. 243 Comment
  CAS-BOT-BC132114  Allium sanbornii var. sanbornii Mrs. C. C. Bruce 1897-5-1 1900 Butte Little [Chico-creek] Chico Creek Comment
  CAS-BOT-BC171272  Alnus incana subsp. tenuifolia H. F. Copeland 1920-8-29 142 Butte Jonesville, Dry Creek 1219 Comment
  JEPS110443  Alopecurus carolinianus Lowell Ahart 2005-12-11 12513 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
  CAS-BOT-BC137941  Alopecurus saccatus Lowell Ahart 1983-5-12 3978 Butte Sierra Nevada. About 0.5 mile northeast of Highway 99 and Pentz Road. 65 Comment
  CHSC102397  Amaranthus deflexus Lowell Ahart 2009-7-3 15983 Butte 10 yards north of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  CHSC47964  Amaranthus deflexus Vernon Oswald 1983-10-10 1062 Butte Bidwell State Park on the e side of the Sacramento R. w of Chico. The Indian Fishery at the jct. Of W. Sacramento Ave and River Rd. Comment
  RSA702776  Amaranthus deflexus L. Ahart 2004-9-28 11404 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 northeast of Durham, about 3 1/2 miles southeast of Chico 58 Comment
  CDA6727  Ambrosia artemisiifolia L. Ahart, Vernon Oswald 1999-10-3 8296 Butte Along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. Comment
  CHSC116013  Ambrosia psilostachya Lowell Ahart 2015-10-9 20539 Butte West edge of Highway 32, about 100 yards south of Ten Mile House road, about 10 miles northeast of Chico. 464 Comment
  CAS-BOT-BC136691  Amelanchier alnifolia var. pumila Lowell Ahart 1980-5-19 2315 Butte Near bridge, South Fork of Feather River 800 Comment
  CAS-BOT-BC142953  Amelanchier utahensis A. A. Heller 1919-5-17 13156 Butte Banks of the Feather River near Stirling. Comment
  UC726481  Amelanchier utahensis A. A. Heller 1919-5-17 13156 Butte near Stirling (Feather River); Feather River 975 Comment
  CHSC110332  Ammannia coccinea B. Castro; Margie Graham 2013-8-24 1600 Butte Sacramento Valley. Ca 1 mi W of Hwy 99 and 3 mi NE of Richvale, just S of the Western Canal siphon in Cherokee Canal. On E side of canal about 100 ft S of dirt road crossing the canal. 35 Comment
  RSA697051  Ammannia coccinea L. Ahart 2003-6-23 10300 Butte Peter Ahart Ranch, about 300 yards east of Palermo Honcut Highway, about 2 1/8 miles north of Honcut, about 12 miles south of Oroville 30 Comment
  SEINET3450928  Ammannia coccinea Unknown 2003-6-23 10300 Butte Oroville, Oroville, about 12 miles south, Peter Ahart Ranch, about 2 1/8 miles north of Honcut, about 300 yards east of Palermo Honcut highway 30 Comment
  CDA36700  Ammannia coccinea P. B. Kennedy 1916-4-4 Butte Biggs. 0 Comment
  RSA0036435  Amorpha fruticosa Lowell A. Ahart 2012-5-12 18027 Butte On the north side of a deep drainage, north of the large meadow, northeast of the old homestead, about 300 yards southwest of Ten Mile House Road, about 1/2 mile (air) west of Highway 32, south part of Upper Bidwell Park, about 9 miles (air) northeast of, Chico. 268 Comment
  UC1178281  Amsinckia eastwoodiae Francia Chisaki with R. Bacigalupi and G. T. Robbins 1956-4-18 678 Butte about 2 mi n Chico Comment
  UC726541  Amsinckia intermedia A. A. Heller 1942-4-10 16420 Butte Oroville Road just e of Butte Creek Bridge Comment
  RSA0089740  Amsinckia lycopsoides L. Ahart 2012-4-20 17889 Butte South of the trail, about 50 yards east of Big Chico Creek, about 100 yards west of Ten Mile House Road, about 3/4 mile west of Highway 32, about 9 air miles northeast of Chico, south part of Upper Bidwell Park. 203 Comment
  SEINET3449092  Amsinckia lycopsoides Unknown 2003-4-10 10064 Butte Oroville, Oroville, about 2.5 air miles north, east rim of south Table Mountain 330 Comment
  CHSC139  Amsinckia menziesii var. menziesii 1949-5-22 Butte Near Sacramento River. 54 Comment
  CHSC1390  Anagallis arvensis R. Carter 1964-6-10 111 Butte Ca. 7 mi. E of Oroville at 6120 Woodleaf St. Rt. on S side of garage. 243 Comment
  CHSC77490  Anagallis arvensis Anna Pinsky 1997-4-30 26 Butte Chico, Upper Bidwell Park, between Bear and Salmon Hole, above Big Chico Creek. 45 Comment
  JEPS93817  Anagallis arvensis Lowell Ahart 1998-6-30 8011 Butte about 7 air mi n of Oroville (sw of the Ione oak tree, w of the cow chute on the w side of Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 403 Comment
  CHSC44895  Anaphalis margaritacea Lowell Ahart 1988-7-31 6143 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
  CHSC38118  Andropogon virginicus var. virginicus R. L. Ondricek-Fallscheer 1982-10-30 163 Butte At sw tip of Flatiron Ridge, ca. 3 1/2 mi wsw of Paradise. 146 Comment
  CHSC11879  Angelica breweri E. B. Copeland 1930-7-21 429 Butte Jonesville. 1650 Comment
  CHSC97321  Anisocarpus madioides L. P. Janeway 2007-6-11 9038 Butte Northern High Sierra Nevada. Plumas National Forest; along Road 20N67 0.6 km northwest of Lumpkin Road, 2.3 km west of Feather Falls town site. 777 Comment
  CHSC49507  Anthoxanthum odoratum V. Oswald; L. Ahart 1988-6-17 3402 Butte Pinkard Creek ca. 1.5 mi n of Lost Creek Reservoir. 1066 Comment
  CHSC1950  Anthriscus caucalis A. Goekler 1929-5-15 Butte Bidwell Park. 60 Comment
  SEINET10454730  Anthriscus caucalis Mary Susan Taylor 1982-4-28 Taylor 4378 Butte T17N R1E sec 15 & 16. Pennington quad. Along road loop around HQ, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 54 ft. 16 Comment
  JEPS87613  Antirrhinum vexillocalyculatum subsp. intermedium Lowell Ahart 1994-10-16 7564 Butte about 2 air mi n and 3.5 mi e Forbestown (about 0.75 mi sw of the Forbestown Reservoir Dam, along s side of dirt rd to the Forbestown Reservoir, near Woodleaf Creek); road to Forbestown Reservoir, near Woodleaf Creek 762 Comment
  SEINET5743429 Image available Apocynum cannabinum Lowell Ahart 1985-1 5072 Butte About 7 miles SE of Oroville. Along the edge of the Oroville-Bangor Highway, 100 yards east of the intersection with Wyandotte Miners Ranch Road.; Oroville Comment
  POM99580  Aquilegia formosa var. truncata R. M. Austin, J. Bruce 1898-05 2423 Butte [Unspecified] Comment
  CAS-BOT-BC167246  Aralia californica Clarence R. Quick 1952-7-1 52 -116 Butte Mill Creek Road between Feather River Highway and Coyote Gap Comment
  CHSC39284  Aralia californica Lowell Ahart 1983-7-24 4214 Butte Small wash at the Forbestown Res., about 5 miles north-east of Forbestown. 450 Comment
  UC1122885  Aralia californica J. E. Sowder 1933-8-4 120 Butte slope above Sable Power House; Chico Quadrangle 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
  CHSC41895  Arbutus menziesii Lowell Ahart 1974-12-5 683 Butte Along the dirt road near Pinkard Creek, about 2 miles west of the Sly Creek Dam. 914 Comment
  JEPS124173  Arbutus menziesii Lowell Ahart 2015-3-14 19948 Butte Beastson Hollow, about 3/5 of a mile northwest of Cherokee Road, about 7 miles (air) north of Oroville. Comment
  CHSC584  Arbutus unedo 1935-4-28 Butte Bidwell grounds, Chico. Comment
  CAS-BOT-BC409925  Arceuthobium campylopodum Lowell Ahart 1987-9-29 5907 Butte along dirt road that ends at Sugar Pine Point, about 0.5 miles S of Lumpkin Ridge Road, about 1 mile SE of Camp 18 and 7 miles NE of Feather Falls 1280 Comment
  CHSC4574  Arceuthobium occidentale C. Glascock 1965-1-27 194 Butte Foothills 2 mi. e of Oroville on Oro-Quincy Hwy. ca. 30 ft. downhill from midpoint of driveway at 2723 Oro-Quincy Hwy., Oroville. 38 Comment
  CAS-BOT-BC24432  Arctostaphylos manzanita Lowell Ahart 1975-4-3 s.n. Butte Near Honcut. 76 Comment
  CHSC67934  Arctostaphylos manzanita James D. Jokerst; M. S. Taylor, L. Ahart 1983-1-17 1685 Butte Top of N. Table Mtn. at its NW corner. Township/Range 'center W edge Sect. 32'. Comment
  RSA632993  Arctostaphylos manzanita Jon E. Keeley 1996-6-20 27452 Butte Approximately 1/2 km west of Cohasset. 570 Comment
  RSA633009  Arctostaphylos manzanita Jon E. Keeley 1996-6-20 27465 Butte Approximately 1/2 km west of Cohasset. 570 Comment
  RSA633010  Arctostaphylos manzanita Jon E. Keeley 1996-6-20 27447 Butte East of Chico, Cohasset Road. 170 Comment
  UCD52255  Arctostaphylos manzanita John Thomas Howell; Lowell Ahart 1976-4-1 51542 Butte In foothill woodland south of Cherokee on road to Oregon City. Comment
  CAS-BOT-BC24409  Arctostaphylos manzanita subsp. manzanita John Thomas Howell 1976-4-2 51567 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
  CHSC24701  Arctostaphylos manzanita subsp. manzanita J. R. Nelson 1976-3-1 6 Butte 9 mi E of Chico on Hwy 32. 548 Comment
  UC195402  Arctostaphylos manzanita subsp. manzanita A. A. Heller 1914-1-10 11152 Butte e Chico; canyon of Big Chico Creek Comment
  UC725751  Arctostaphylos manzanita subsp. manzanita A. A. Heller 1941-12-17 16338 Butte Neal Rd 3 mi below Paradise Comment
  CAS-BOT-BC24298  Arctostaphylos mewukka A. A. Heller 1928-2-22 14476 Butte Near Forest Ranch Comment
  RSA795329  Arctostaphylos mewukka subsp. mewukka L. Ahart 2010-7-27 16913 Butte About 100 yards southwest of the intersection of Forbestown Road and Black Bart Road, about 11 miles east of Oroville. 742 Comment
  CAS-BOT-BC38555  Arctostaphylos mewukka subsp. truei John Thomas Howell 1976-4-2 51562 Butte About 2 mi. from Paradise on Skyway to Chico. 396 Comment
  CAS-BOT-BC38572  Arctostaphylos mewukka subsp. truei Walter Knight; Irja Knight; Tiffany Knight 1988-7-24 6299 Butte Junction of Forbestown Rd. and Black Bart Rd. 853 Comment
  CAS-BOT-BC38612  Arctostaphylos mewukka subsp. truei John Thomas Howell 1967-6-22 42636 Butte Magalia 701 Comment
  CAS-BOT-BC45526  Arctostaphylos nevadensis H. F. Copeland 1920-7-8 40 Butte Divide between Tehama, Butte, and Plumas Counties. 1828 Comment
  CAS-BOT-BC45567  Arctostaphylos nevadensis E. B. Copeland 1931-6-22 672 Butte Jonesville. On ridge e. of the Summit. 2100 Comment
  CHSC11946  Arctostaphylos nevadensis E. B. Copeland 1931-6-22 672 Butte Jonesville. On ridge east of 'the Summit'. 2100 Comment
  CHSC48372  Arctostaphylos nevadensis Vernon Oswald 1983-8-17 994 Butte On Humboldt Peak, NE of Jonesville. 2158 Comment
  POM193357  Arctostaphylos nevadensis E. B. Copeland 1930-7-6 437 Butte Above Jonesville. 2050 Comment
  CHSC34804  Arctostaphylos patula M. S. Taylor 1980-5-8 2602 Butte Ca. 3 mi N of Forest Ranch, ca. 1 mi E of Hwy 32. 853 Comment
  UCD51939  Arctostaphylos tomentosa J. I. Mallory 1970-9-3 381 Butte Granite ridge along Concow Road, 5 miles west of Cresta Dam, 10 miles north-northeast of Jarbo Gap, Butte County, California. 1280 Comment
Read comments
Oct 2 2015
  RSA381139  Arctostaphylos truei J. T. Howell 1975-6-15 51109 Butte Skyway near Billie Road, Paradise. 609 Comment
  UCD51933  Arctostaphylos truei John Thomas Howell 1975-6-15 51109 Butte Skyway near Billie Road, Paradise, Butte County. Transition Zone. 609 Comment
  SJSU10836  Arctostaphylos viscida L. J. Ericsen 1955-4-16 106 Butte between Paradise & Megalia 609 Comment
  CAS-BOT-BC47372  Arctostaphylos viscida subsp. viscida John Thomas Howell 1975-6-15 51093 Butte about 2 miles from Paradise on Skyway to Chico 396 Comment
  CAS-BOT-BC47376  Arctostaphylos viscida subsp. viscida John Thomas Howell 1975-6-15 51094 Butte about 2 miles from Paradise on Skyway to Chico 396 Comment
  CAS-BOT-BC47390  Arctostaphylos viscida subsp. viscida Lowell Ahart 1975-4-1 s.n. Butte Near Feather Falls. 396 Comment
  CHSC7145  Arctostaphylos viscida subsp. viscida Lynn R. Thomas 1969-3-2 12 Butte E edge at junction of Pentz and Bennum Rds., ca. 0.6 mi. NW of Calif. 70, between Paradise and Oroville. 152 Comment
  UC1121413  Arctostaphylos viscida subsp. viscida J. E. Sowder 1933-7-20 117 Butte 2 1/2 mi w Nimshew; Chico Quadrangle Comment
  CDA31488  Aristida oligantha L. Ahart 2000-9-27 8692 Butte On the north side of Bean Creek Road, about 1/4 mile southeast of Little Bald Rock, about 1 1/4 miles (air) northeast of Big Bald Rock, about 4 miles (air) northeast of Madrone Lake, about 13 miles (air) northeast of Oroville. Comment
  CHSC110101  Aristida oligantha L. P. Janeway 2012-9-29 11061 Butte Cascade Range Foothills. Upper Bidwell Park, Chico; along Mid-dle Trail 0.3 km northwest of Bear Hole parking area. 128 Comment
  CAS-BOT-BC400426  Aristolochia californica A. A. Heller 1913-3-9 10687 Butte Hills two miles north of Oroville Comment
  CHSC36393  Arnica dealbata Kirsten Tarp 1981-8-4 68 Butte Scotts John Creek, ca. 29 mi ne of Chico. 1828 Comment
  CAS-BOT-BC90290  Artemisia douglasiana John Thomas Howell 1961-9-22 36721 Butte Bank of Feather River, Oroville 53 Comment
  CHSC38322  Artemisia douglasiana Vernon H. Oswald 1983-8-19 1006 Butte Upper Bidwell Park, Chico, near the E end of Yahi Trail. 207 Comment
  CAS-BOT-BC400630  Asarum hartwegii Mrs. Eva Pattee 1923-5-15 s.n. Butte Shady Rest near Cresta Comment
  SBBG17264  Asclepias cordifolia M. Vincent 1962-4-19 212 Butte Humbug Rd, 3 mi NE of Centerville Comment
  UCD121248  Asclepias cordifolia L. Ahart 1977-4-16 1309 Butte Near Honcut. 50 Comment
  UCD121285  Asclepias cordifolia M. Vincent 1963-6-8 405 Butte Honey Run Road. Comment
  UCR219262  Asclepias fascicularis George K. Helmkamp, E. A. Helmkamp 2009-9-5 15591 Butte Sacramento Valley, Palermo Road 0.3 mi. east of its junction with CA-70, 6.1 mi. ENE (76 deg. ) of Biggs 58 Comment
  SEINET10496162  Asclepias fascicularis Lowell Ahart 1985-6-30 Ahart 5074 Butte Abut 1 mile west of intersection of Forbestown Road with Robinson Mill Road, N of Oroville. Comment
  HSC96985  Aspidotis californica R. D. Fischer 2004-1-4 44 Butte Sierra Nevada foothills within upper Bidwell Park in Chico, along Yahi Trail above Brown's Hole 213 Comment
  CAS-BOT-BC65917  Aspidotis densa John Thomas Howell 1955-6-14 30464 Butte Magalia 731 Comment
  RSA4658  Aspidotis densa E. B. Copeland 1929-7-13 328 Butte Jonesville 1700 Comment
  SEINET10529848  Aspidotis densa Heidi H. Schmidt 1993-6-15 Schmidt 870 Butte Plumas National Forest. On state road 23N06 ca. 3 miles N of the junction with highway 70. Mixed hardwood and conifer forest. 1010 Comment
  CAS-BOT-BC99218  Aster M. S. Taylor 1975-10-31 985 Butte Ca. 10 ft. n of Big Chico Creek, in vicinity of Diversion Dam, Upper Bidwell Park, Chico 152 Comment
  CDA10332  Aster oregonensis subsp. californicus T. C. Fuller 1962-7-12 9162 Butte East side of Pentz-Magalia Road just south of Merrill Road, 1.2 miles south of Magalia. 0 Comment
  CHSC48130  Aster radulinus Vernon H. Oswald 1985-9-5 1940 Butte Forbestown Reservoir Rd. 2.9 mi NE of Forbestown Rd. 807 Comment
  RSA32898  Aster subulatus var. parviflorus A. A. Heller 1923-10-13 13828 Butte Near Richvale Comment
  CAS-BOT-BC178458  Astragalus gambelianus Ira L. Wiggins 1925-3-22 1463 Butte Chico Creek Canyon about five miles above Chico Comment
  CHSC109163  Astragalus gambelianus Lowell Ahart 2012-5-12 18040 Butte On the west side of an old road, Humboldt Trail, about 1/10 mile west of Highway 32, south part of Upper Bidwell Prk, about 7-1/2 miles (air) northeast of Chico. 414 Comment
  RSA0003125  Astragalus tener var. bruceae C. C. Bruce 1898-03 2430 Butte Plains [no specific locality given] Comment
  CHSC42895  Asyneuma prenanthoides L. P. Janeway 1984-7-15 924 Butte Just W of Rogers Cow Camp. 1249 Comment
  CHSC48006  Asyneuma prenanthoides Vernon Oswald 1983-7-19 874 Butte Doon Campground, ca. 1 mi e of Love lock on the Skyway n-e of Paradise. 822 Comment
  CHSC34238  Athyrium filix-femina var. cyclosorum M. S. Taylor 1981-4-28 3568 E Butte On Four Trees Rd, ca. 1/2 mi e of Hwy 70, ca. 2 mi ne of Pulga. 701 Comment
  JEPS94925  Athyrium filix-femina var. cyclosorum Lowell Ahart 1997-8-1 7765 Butte about 1/4 mi e Table Mountain (on e side of creek, where basalt is eight sided, about 8 air mi ne of Stirling City); Snow Meadow, Little Kimshew Creek 1524 Comment
  CHSC101083  Athysanus pusillus Lowell Ahart; John Dittes 2009-3-20 15498 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
  CHSC12166  Athysanus pusillus Lowell Ahart 1973-3-26 Butte Peter Ahart Ranch, Honcut. 45 Comment
  JEPS90672  Atriplex cordulata Vernon H. Oswald 1993-7-29 5734 Butte w of Gridley (Gray Lodge Wildlife Management Area, w side of levee road and on s side of Rutherford Road, just e of headquarters complex, 1.75 mi w of Pennington Road); Gray Lodge Wildlife Management Area 19 Comment
  SEINET11924836  Atriplex cordulata A. Ahart, Taylor 1982-1 3861 Butte About 1/10 mi SE of the Gray Lodge Waterfowl Management Area Headquarters, about 12 mi SW of Gridley 30 Comment
  SEINET516426  Atriplex rosea Lowell Ahart 1982-1 3662 Butte Small size plant, growing on ddry bare packed soil, in the parking area around the Gray Lodge Waterfowl Management Area check in station, about 12 mi SW of Gridley. 30 Comment
  CHSC46432  Avena barbata Lowell Ahart 1989-5-10 6216 Butte Near Lake Oroville, about 1/10 mile north-west of the West Branch Bridge across Lake Oroville. 289 Comment
  CHSC40397  Azolla filiculoides Lowell Ahart 1985-3-24 4850 Butte South of Highway 70, at the intersection of Highway 70 and 191. 100 Comment
  JEPS122266  Azolla filiculoides Lowell Ahart 2014-4-9 19338 Butte West end of Liberty Road, about one mile (air) south of Colusa Highway, about 7 miles (air) southwest of Gridley. Comment
  CHSC112240  Azolla microphylla Lowell Ahart 2013-4-20 18550 Butte In Wilson Creek, about 40 yards southwest of the oak trees, about 1/2 mile north of the barn, about 3/4 mile north of the Honcut Cemetary, about 3 3/4 miles (air) northeast of Honcut. 49 Comment
  CAS-BOT-BC98007  Baccharis pilularis Lowell Ahart 1985-2-17 4838 Butte near Kunkle Res., about 2 miles south of Paradise 550 Comment
  CAS-BOT-BC98186  Baccharis salicifolia Junea Kelley 1920-4-24 s.n. Butte Los Verjils Comment
  CHSC37134  Bacopa rotundifolia L. Ahart 1982-6-27 3652 Butte Peter Ahart Ranch, ca 2 1/4 mi n and 1/4 mi e of Honcut. 50 Comment
  UCD129525  Balsamorhiza deltoidea W. R. Powell 1968-5-17 1515 Butte 3.5 miles east-northeast of Lake Wyandotte and 3 miles north of Rackberby. 466 Comment
  CAS-BOT-BC16376  Barbarea orthoceras Lowell Ahart 1987-5-6 5508 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles southeast of Jarbo Gap. 271 Comment
  CHSC33226  Barbarea orthoceras R. E. Preston 1981-6-11 84 Butte On a gravel bar on n side of Butte Creek, ca. 3.2 km ne of Butte Meadows, near Cherry Hill. 1415 Comment
  SEINET10448247  Barbarea orthoceras Mary Susan Taylor 1975-8-31 Taylor 892 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
  CHSC24790  Berberis dictyota Keith Lickey 1976-3-11 44 Butte Jordan Hill Rd ca. 3 km wnw of Concow Rd ca. 12 m w of Concow Creek Bridge. 457 Comment
  CHSC28459  Bergia texana R. A. Schlising 1979-10-14 3507 Butte Along Sacramento River w of Chico, just n of Chico Landing Site in Bidwell River State Park. Comment
  HSC93350  Bergia texana L. Ahart 1995-7-15 7594 Butte Small wash, Peter Ahart Ranch, 1.5 mi. N and 0.75 mi. E of Honcut, 12 mi. S of Oroville 37 Comment
  CHSC109169  Betula alba Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18008 Butte West of the horse path, On the north side of the paved road, about 1/4 mile west of Peterson Drive, south of Vallombrosa Avenue, Lower Bidwell Park, Chico. 76 Comment
  CHSC31952  Boechera breweri J. D. Jokerst; L. Ahart, M. S. Taylor 1980-8-2 1045 Butte Top of Humboldt Peak, ca. 400 meters NE of summit along hogback ridge. 2133 Comment
  CHSC35651  Boechera breweri subsp. shastaensis R. E. Preston 1982-4-7 235 B Butte Cape Horn, ca. 4 mi sw of Paradise. On cliff. 335 Comment
  CHSC25323  Boechera platysperma M. Hayes; M. S. Taylor, R. Schlising 1977-8-17 42 Butte Collected at the very ne corner of Butte County, less than 1/2 mi west of Humboldt Peak, 150 ft from the county line in a meadow. 2026 Comment
  UCD114430  Boechera rectissima R. E. Preston 1981-7-8 104 Butte ca. 15 m e of Humboldt Rd, ca. 4.2 km nne of Jonesville. 1970 Comment
  SEINET10939933  Boisduvalia densiflora Mary Susan Taylor 1974-10-11 Taylor 333 Butte Along Sacramento River, in vicinity of the washout on River Road, ca. 10 mi W of Chico. Riparian Woodland. 61 Comment
  SEINET12194591  Boisduvalia densiflora Unknown 1985-1 5058 Butte Lumpkin Ridge, 1-1/2 mi E of Camp 18, about 8 mi NE of Feather Falls 975 Comment
  JEPS88224  Bolboschoenus glaucus Vernon H. Oswald and Lowell Ahart 1996-6-10 7757 Butte U.S. Fish and Wildlife Service parcel between 7 Mile Lane and Sacramento River (in the ne corner of corner of Tract 7.2, Sanctuary I); Sacramento River National Wildlife Refuge, Llano Seco Unit 33 Comment
  CHSC105801  Botrychium simplex var. compositum Lowell Ahart 2010-9-28 17242 Butte On the south edge of a 10 acre meadow, about 100 yards east of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1886 Comment
  CDA13271  Boykinia major G. F. Hrusa, T. D. Wilfred 1996-7-9 13119 Butte Plumas National Forest; Jordan Creek, above falls before confluence with Marble Creek. Comment
  SEINET10483033  Boykinia major Mary Susan Taylor 1982-8-16 Taylor 5018 Butte T24N R5E nw/nw sec 17. Pulga NW quad. S side of jct of Big Kimshew Creek and Bald Mt-Ramsey Bar Rd (52513), ca. 4 air mi ne of Stirling City. Riparian; 4700 ft. 1432 Comment
  CHSC107902  Brachypodium distachyon L. P. Janeway 2011-6-29 10411 Butte Northern High Sierra Nevada. Along Encino Grande (Ponderosa Way) 1.0 road km west of the top of Bloomer Hill; 0.7 air km west-northwest of the top of Bloomer Hill. 820 Comment
  SEINET10907336  Brassica campestris Lowell Ahart 1983-2-21 Ahart 3903 Butte Peter Ahart Ranch, ca. 3 mi ne of Honcut. Valley Grassland; 35 m. 35 Comment
  CHSC34595  Brassica nigra R. E. Preston 1981-10-23 151 Butte Between almond orchard and Sacramento Ave., ca. 0.5 km w of Meridian Rd, ca. 8 km w of Chico. 40 Comment
  CHSC3618  Brassica rapa John Francis 1966-2-21 18 Butte Orchard across road from Durham Cemetery. Comment
  CHSC81588  Briza minor D. Tellefson 2000-4-27 Butte Near Table Mountain Golf Course, Oroville. 40 Comment
  UC843925  Brodiaea californica var. californica A. A. Heller 1938-5-22 15106 Butte near Chico airport Comment
  UC1442862  Brodiaea coronaria subsp. coronaria Theodore F. Niehaus 1967-4-12 741 Butte Plumas Ave and 14th Street (along road and parking lot of Grocery Store Junction, nw Oroville); Oroville Comment
  CHSC40079  Brodiaea elegans A. A. Heller 1938-5-22 15105 Butte Near Chico airport. Upper Sonoran Life Zone. 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
Read comments
Jun 17 2014
  CHSC71267  Brodiaea minor Lowell Ahart 1998-7-1 8026 Butte About 100 yards south of a east west fence, about 5/8 mile north of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CHSC75413  Brodiaea minor Jennifer Slater 1997-4-20 27 Butte At the Wurlitzer addition of the Vina Plains Preserve, west of Highway 99, approx. 10 miles north of Chico. 67 Comment
  CAS-BOT-BC484555  Brodiaea minor Lowell Ahart 1984-6-10 4686 Butte Along the edge of Hurletojn Swedes Flat Road, about 2 miles south of Forbestown Road, about 12 miles south-east of Oroville, California 450 Comment
  SEINET8194029  Brodiaea minor M. J. Williams, W. Roderick 1984-5-25 84- 25 -1 Butte Near Pontz Road, near Cherokee. 305 Comment
  CHSC90587  Brodiaea nana Siegel 1977-4-15 2 Butte Butte College, ca. .25 mi se of Clear Creek ca. 4 mi e jct Hwy 99E and Pentz Rd., ca. 10 mi s of Chico. Comment
  CHSC71463  Brodiaea sierrae Lowell Ahart 1998-7-19 8049 Butte On the southeast side of the dirt road to the Forbestown Reservoir, about 1 mile northeast of Forbestown Road, about 2 1/2 miles (air) northeast of Forbestown. 883 Comment
  SEINET3885117  Brodiaea volubilis Margaret J. Williams 1984-5-25 84- 21 -2 Butte 3.3 mi from Paradise on Honey Run Road.; 0 Comment
  SD122511  Bromus carinatus Lowell Ahart, Peter Ahart 1984-6-10 4706 Butte NE of Forbestown; about 2 mi SW of Forbestown Diversion Dam 700 Comment
  CHSC38792  Bromus carinatus var. carinatus Vernon Oswald 1983-4-20 350 Butte Upper Bidwell Park, Chico, at the water-gaging station w of Bear Hole. 97 Comment
  SEINET10662690  Bromus carinatus var. carinatus Lowell Ahart 2007-5-29 Ahart 13943 Butte T21N, R6E, Section 28. On the south side of the Dome Trail, trail leads to the Middle Fork of the Feather River, at the trailhead which is 3/10 mi E of Bean Creek Road, about 2 miles (air) NE of Big Bald Rock, about 16 mi (air) NE of Oroville. 844 Comment
  SEINET10509555  Bromus caroli-henrici Lowell Ahart 1984-5-31 Ahart 4655 Butte On the Peter Ahart Ranch, ca. 1.3 mi N and 1/8 mi E of Honcut, ca. 12 mi S of Oroville; Valley Grassland; 50 m. 50 Comment
  JEPS118468  Bromus catharticus Lowell Ahart 2011-5-9 17354 Butte South side of Palm Avenue, about 2 miles (air) southeast of East Biggs 29 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
  CHSC11332  Bromus hordeaceus Lowell Ahart 1971-4-25 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC4367  Bromus hordeaceus M. Hillier 1966-5-30 Butte In field by ski jump nw of CSC gym. Chico. Comment
  CHSC45206  Bromus hordeaceus Lowell Ahart 1972-4-18 84 Butte Hills, Peter Ahart Ranch, about 1 1/2 miles north and 1 1/2 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CAS-BOT-BC162465  Bromus laevipes Lowell Ahart 1985-5-15 1471 Butte 1.5 mile northeast of Concow Res.East of the dirt road, about 1.5 mile northeast of Concow Res. 800 Comment
  CHSC102173  Bromus laevipes Lowell Ahart 2009-5-30 15804 Butte On dry rocky soil, on the north side of Ten Mile House Road, just southeast of Guardians Trail, Upper Bidwell Park, about 1/4 mile west of the intersection of Highway32 and Ten Mile House Road, about 10 miles northeast of Chico. 425 Comment
  CHSC40451  Bromus laevipes Lowell Ahart 1985-5-15 4987 Butte Ridge, east of the dirt road, about 1 1/2 miles north-east of Concow Res. 731 Comment
  CHSC95228  Bromus laevipes L. P. Janeway 2006-8-6 8829 Butte Northern High Sierra Nevada. Near road along west side of lower Pinkard Creek, 1.2 mi north of Lost Creek Reservoir dam. 1021 Comment
  JEPS110217  Bromus laevipes Lowell Ahart 2006-5-19 12631 Butte Road bank, on the west side of the dirt road, Bardees Bar Road, south of the small stream, about 1/4 mile southwest of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga 405 Comment
  CHSC30695  Bromus madritensis subsp. rubens M. S. Taylor 1980-5-27 2674 Butte On Big Bald Rock, ca. 3 mi e of Lake Madrone. 997 Comment
  RSA718741  Bromus orcuttianus L. Ahart 2006-7-25 13054 Butte about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northwest of Butte Meadows. 1570 Comment
  UCD80527  Bromus rubens CNPS SN Foothill Team 2005-5-6 SNFN 0160 a Butte City of Chico, Upper Bidwell Park, on the northwest side of Upper Park Road, directly across from parking area 'M. 149 Comment
  UCR237303  Bromus rubens George K. Helmkamp, E. A. Helmkamp 2012-4-14 18764 Butte Northwestern Sacramento Valley, entrance to Oroville Wildlife Area, 0.2 mile west of CA-70, near the Feather River 46 Comment
  CAS-BOT-BC161505  Bromus tectorum Lowell Ahart 1987-5-6 5552 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles southeast of Jarbo Gap. 271 Comment
  CHSC82504  Bulbostylis capillaris Lowell Ahart; John Dittes 2002-6-17 9720 Butte About 150 yards southeast of Lumpkin Ridge Road, about 2 miles east of the intersection of Lumpkin Ridge Road, County Road, and road to Fall River, about 6 3/4 miles (air) northeast of Feather Falls. 1296 Comment
  CHSC43260  Calamagrostis canadensis Lowell Ahart; Tim Devine, Vern Oswald 1987-10-17 5917 Butte Along the East Fork of Last Chance Creek, about 1/2 mile north-west of Jones Meadow. 1676 Comment
  CHSC38281  Callitriche heterophylla var. bolanderi Vernon Oswald 1983-3-9 146 Butte Upper Bidwell Park, Chico, 400 ft w of Day Camp. In an oxbow near Chico Creek. 91 Comment
  CHSC97379  Callitriche heterophylla var. bolanderi Paul Maslin 2006-5-3 37 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). UTM: 10609374E 4410375N. 342 Comment
  CHSC114988  Callitriche marginata Lowell Ahart 2015-4-28 20062 -A Butte 50 yards southeast of Parking Lot 1, about 1 1/4 miles north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. 19 Comment
  CAS-BOT-BC80357  Calocedrus decurrens Lowell Ahart 1987-8-8 5854 Butte near North Honcut Creek, about 2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville 67 Comment
  CHSC103161  Calocedrus decurrens Lowell Ahart 2009-11-19 16548 Butte About 80 yards southeast of the gate, about 70 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 269 Comment
  CHSC3348  Calocedrus decurrens Robert L. Smith 1966-4-23 18 Butte Bull Run Rd. 5 miles W of Butte Meadows. Comment
  LA6444  Calocedrus decurrens E. B. Copeland; 1931-7-28 sn Butte Jonesville, W of North Willow Creek 1650.0 Comment
  CAS-BOT-BC487512  Calochortus albus A. A. Heller 1914-5-8 11375 Butte Plateau above Clear Creek on the Paradise road Comment
  SEINET12046804  Calochortus albus D. J. Funk 1976-1 17 Butte ca 5 ft W of Humbug Rd & 150 yd NW of covered bridge on Butte Creek, 6.4 mi ESE of Chico 110 Comment
  UCD13260  Calochortus luteus Dean Dubbe 1974-5-5 10- 3 Butte State Highway 70, 10 miles northwest of Oroville. 274 Comment
  CHSC90184  Calochortus monophyllus Thomas M. Scott 1989-4-19 9 Butte About 50 m east of Butte Creek at Covered Bridge; 10.2 km east-southeast of Chico. 120 Comment
  SEINET7067153  Calochortus monophyllus A. G. Vestal 1947-4-30 s.n. Butte Along the road to Cherokee. Coordinate datum: NAD27. UTM Zone 10, 626283mE, 4388764mN. Comment
  SD6501  Calochortus monophyllus Mrs. R. M. Austin Jul 1879 Butte Sutton House. Comment
  POM196096  Calochortus nudus E. B. Copeland 1929-7-21 353 Butte Jonesville 1550 Comment
  CHSC25402  Calycadenia ciliosa M. P. Hayes 1977-9-11 56 Butte Exactly 3.5 mi E of the Hwy 99 overpass on Hwy 32 in Chico, ca 3-10 m S of the road. 137 Comment
  CHSC63696  Calycadenia ciliosa Lowell Ahart 1994-10-8 7551 Butte Along North Rim Trail, near the double power lines, Bidwell Park, about 1 mile east of Chico. 152 Comment
  CAS-BOT-BC273290  Calycadenia fremontii G. D. Carr 1978-7-7 792 (1978) Butte NE of Chico, Upper Bidwell Park (Devils Kitchen), 4.6 mi NE of Manzanita Ave on Upper Bidwell Canyon Rd via Wildwood Ave 232 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
  CHSC44369  Calycadenia oppositifolia Lowell Ahart 1988-6-29 6084 Butte North of Swedes Flat Road, about 1 mile east of Oroville Bangor Highway, about 5 miles north of Bangor. 304 Comment
  CHSC45089  Calycadenia oppositifolia L. P. Janeway 1988-6-14 2759 Butte Little Chico Cr ca 1 3/4 air mi S of Ten Mile House, along the road to Doe Mill Ridge. NW-facing slope on SE side of cyn. 274 Comment
  RSA255509  Calycadenia oppositifolia Gerald D. Carr 1973-5-22 736 Butte 0.5 miles S of Chico Municipal Airport on Cohasset Rd. Comment
  SBBG60970  Calycadenia oppositifolia A. A. Heller 1926-5-22 13940 Butte Richardson Springs Rd 3 mi N of Chico Comment
  CDA10579  Calycadenia spicata L. Ahart 2003-6-2 10296 Butte Peter Ahart Ranch, about 2 miles north and 1 3/8 miles east of Honcut, about 12 miles southeast of Oroville. Comment
  RSA255510  Calycadenia spicata Gerald D. Carr 1971-5-23 552 Butte Larkin Road, 1.1 miles SW of Oroville Dam Blvd. Comment
  CHSC102725  Calycadenia truncata Lowell Ahart 2009-6-30 15954 Butte Open area west of the Guardian Rock Trail, about 120 yards north of Pine Trail, about 3/8 mile (air) southwest of the intersection of Ten Mile House Road and Highway 32, Upper Bidwell Park, about 10 miles northeast of Chico. 398 Comment
  CHSC34793  Calycadenia truncata M. S. Taylor 1981-6-19 3960 Butte North side of Hwy 70 at NW end of Pulga bridge. Ca. 20 mi NE of Oroville. 487 Comment
  CHSC39266  Calycadenia truncata Lowell Ahart 1983-6-30 4182 Butte Along the dirt road, about 1 1/2 miles northeast of Concow Res. 550 Comment
  CHSC92937  Calycadenia truncata L. P. Janeway 2005-7-16 8496 Butte Northern High Sierra Nevada. On Rocky Ridge, along Rim Road (Ponderosa Way); about 1.3 km south of Batchelor Point. Near ridgetop. 927 Comment
  UCD129875  Calycadenia truncata Gerald D. Carr 1971-6-15 562 Butte 0.4 miles west of east boundary of Upper Bidwell Park, SE of Chico. 171 Comment
  CAS-BOT-BC275390  Calycadenia truncata var. truncata Lowell Ahart 1983-6-26 4153 Butte Along the edge of Ponderosa Way, about 1.5 miles SE of the E Fork of Canyon Creek, about 14.5 miles NE of Oroville 575 Comment
  CHSC33651  Calystegia atriplicifolia subsp. buttensis R. A. Schlising 1974-6-13 3143 Butte Along the Skyway NE of De Sabla, about 0.2 mi NE of junction with Humbug Road. Comment
  CHSC91261  Calystegia atriplicifolia subsp. buttensis L. P. Janeway 2005-5-29 8401 Butte Northern High Sierra Nevada. Along major dirt road 2.6 km south of Stirling City towards West Branch Feather River crossing. 1006 Comment
  JEPS113313  Calystegia atriplicifolia subsp. buttensis L. P. Janeway 2006-6-25 8696 Butte Northern High Sierra Nevada. Along a major dirt road 2.6 km south of Stirling City towards West Branch Feather River crossing. Comment
  CHSC46360  Calystegia occidentalis Lowell Ahart 1989-5-28 6300 Butte On a steep slope south of Oregon Gulch Road, about 1/2 mile north of the Cemetery, about 1 1/4 miles west of Rocky Point, about 10 miles east and 3 miles north of Oroville. 335 Comment
  CAS-BOT-BC496960  Camassia leichtlinii subsp. suksdorfii E. B. Copeland 1930-6-27 408 Butte Jonesville 1550 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
  CHSC35025  Capsella bursa-pastoris R. E. Preston 1982-3-27 206 Butte Along dirt road; Campbell Hills, n of Thermalito Afterbay, Oroville. In saddle. 121 Comment
  HSC96910  Capsella bursa-pastoris L. Ahart 2005-4-2 11683 Butte E side of Sacramento River, NW of Parrott Landing, 1 mi. SE of Ord Ferry, 2 mi. SE of Ordbend, 12 air mi. SW of Chico 26 Comment
  CHSC28635  Cardamine oligosperma M. S. Taylor 1979-3-31 1966 Butte Lickey Ranch, along Ishi Trail Rd, ca. 1/2 mi ne of Concow Rd and Lake Concow, ca. 25 mi n of Oroville. 670 Comment
  CHSC34524  Cardamine pachystigma R. E. Preston 1981-4-11 52 Butte Roadcut, on s side of Forbestown Reservoir, ca. 400 m e of diversion dam, ca. 5.8 km ne of Forbestown. 580 Comment
  CHSC83934  Cardamine pachystigma L. P. Janeway; Gavin Blosser, Adam Henderson 2003-3-19 7743 Butte Northern High Sierra Nevada. North-facing slope just above French Creek (Lake Oroville) about 300 m south-southeast of its confluence at North Fork Feather River. 341 Comment
  CHSC86575  Cardamine pachystigma L. P. Janeway; Gavin Blosser, Adam Henderson 2003-4-30 7769 Butte Northern Sierra Nevada Foothills. Just above North Fork Feather River arm of Lake Oroville, south side of lake; 2.7 km northeast of Bloomer Hill. 280 Comment
  CHSC92532  Cardamine pachystigma L. P. Janeway; S. Mackey Hillaire, M. Brown, J. Tuitele-Lewis 2005-4-26 8369 Butte Northern High Sierra Nevada. Plumas National Forest; Ridgetop between Cirby Creek and Flea Valley Creek drainages; along Concow Road 0.9 road km north-northwest of junction with Rim Road (Ponderosa Way). 1042 Comment
  JEPS105650  Cardamine pachystigma L. P. Janeway, Gavin Blosser, Adam Henderson 2003-3-19 7743 Butte Northern High Sierra Nevada. North-facing slope just above French Creek (Lake Oroville) about 300 m south-southeast of its confluence at North Fork Feather River 341 Comment
  CHSC106866  Carduus pycnocephalus Lowell Ahart 2011-5-1 17333 Butte North side of the intersection of Georgia Pacific Way and Feather River Blvd, about 100 yards east of Highway 70, about 1 mile south of Oroville. 42 Comment
  CHSC112785  Carex Lowell Ahart 2013-5-27 18710 Butte On both sides of the meadow, about 150 yards east of the intersection of Forbestown Road and Black Bart Road, about 3 1/4 miles (air) southwest of Forbestown. 763 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
  CHSC45243  Carex amplifolia S. C. Morey 1983-7-23 573 Butte On n side of Humboldt Rd., ca. 32. mi e of Butte Meadows. 1414 Comment
  CHSC105796  Carex angustata Lowell Ahart 2010-9-28 17261 Butte West edge of a 10 acre meadow, about 50 yards east of the poor dirt road, about 20 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1886 Comment
  CHSC43867  Carex aurea Vernon Oswald 1987-5-2 2363 Butte East side of Little Chico Creek Canyon ca. 1 mi se of Forest Ranch. 609 Comment
  POM183139  Carex aurea H. F. Copeland 1929-6-11 1243 Butte Jonesville. 1524 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
  CAS-BOT-BC19418  Carex bolanderi Lowell Ahart 1988-7-31 6149 Butte About 4 road miles north of Stirling City. On the east side of the West Branch of the Feather River. 914 Comment
  CHSC45075  Carex bolanderi Vernon Oswald 1987-5-12 2392 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. 80 Comment
  CHSC94398  Carex bolanderi Lowell Ahart 2006-8-15 13192 Butte East part of a large meadow with bogs, on the east side 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
  OBI6420  Carex bolanderi Lewis S. Rose 1963-6-5 63140 Butte North Fork of Feather River, Arch Rock Tunnel 488 Comment
  CAS-BOT-BC19601  Carex brainerdii L. P. Janeway 1988-6-14 2789 Butte East side of canyon of Cedar Creek 4.3 miles east of Lomo along the Cedar Loop. 1280 Comment
  JEPS94721  Carex cyrtostachya Lowell Ahart 1998-7-19 8052 Butte about 3/4 mi nw of Lost Creek Dam (about 1/2 mi nw of the Lost Creek Reservoir, on n side of the dirt road) 1021 Comment
  JEPS116020  Carex densa Lowell Ahart 2009-6-3 15818 Butte About 100 yards west of the table at the old homestead and about 50 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 232 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
  CHSC45709  Carex feta L. P. Janeway 1987-5-10 2046 Butte Mdw at jct of The Skyway and Doe Mill/Humbug Rd (just N of DeSable Res.). 838 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
  SEINET10467069  Carex feta Mary Susan Taylor 1978-9-9 Taylor 1913 Butte Along Bull Run Road, ca. 10-11 mi S of Butte Meadows in northern portion of the county; Yellow Pine Forest. 1463 Comment
  JEPS121929  Carex fracta Lowell Ahart 2014-7-16 19678 Butte About 50 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  RSA739648  Carex geyeri L. P. Janeway, Linus Gog 2008-7-18 9435 Butte Butte County: High Cascade Range along Humbug Summit road, above the Cornelia Lott Sank Memorial Spring (which feeds W branch Feather River) 1536 Comment
  CHSC61651  Carex heteroneura var. heteroneura Lowell Ahart 1993-9-8 7157 Butte On the north side of the ridge, about 1 mile east of Snow Mountain. 2072 Comment
  CAS-BOT-BC28193  Carex hirtissima James D. Jokerst 1982-6-4 1591 Butte Headwaters of Concow Creek ca 1.0 mi S of Flea Valley. 1097 Comment
  HSC102794  Carex hirtissima L. P. Janeway 2013-5-5 11096 Butte Plumas National Forest; eastern slope of Bloomer Hill, 1.0 air km east of the top. 701 Comment
  JEPS87676  Carex hirtissima Lowell Ahart 1994-4-22 7288 Butte about 3 1/2 mi sw Forbestown (s of the intersection of Black Bart Road and Forbestown Road) 609 Comment
  CHSC52914  Carex integra L. P. Janeway; R. A. Schlising 1988-7-22 3062 Butte Upper canyon of Philbrook Creek, 0.7 mi W of the pass. 1920 Comment
  JEPS110201  Carex integra Lowell Ahart 2006-7-16 12990 Butte On the east side of Willow Creek, on the east side of a large meadow and bog, about 200 yards southeast of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
  JEPS121937  Carex integra Lowell Ahart 2014-7-7 19592 Butte On the south side of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  UCD140469  Carex inversa Peter F. Zika 2010-5-16 24825 Butte Safford Street near Third Avenue, Oroville, Janeway's Station, Sacramento Valley. 50 Comment
  CHSC76846  Carex laeviculmis L. P. Janeway; B. Castro, Linnea Hanson, Hal Durio. 1997-6-13 5138 Butte About 1.8 mi northeast of Brush Creek, about 1.0 mi east-southeast of Mountain House; along an unnamed tributary of Mountain House Creek at Road 22N54. 1112 Comment
  CAS-BOT-BC31120  Carex lemmonii V. Oswald; Lowell Ahart 1988-6-17 3403 Butte Pinkard Creek ca. 1.5 mi N of Lost Creek Reservoir. 1066 Comment
  CHSC61341  Carex lemmonii Lowell Ahart 1993-7-31 7137 Butte Edge of a large bog, on the north side of the dirt road to Big Kimshew Creek, about 1 1/2 miles south-east of Bald Mountain, north-east of Stirling City. 1493 Comment
  SEINET10828947  Carex luzulina var. ablata Lowell Ahart 2010-9-21 Ahart 17219 Butte T25N, R5E, northeast 1/4 Section 29. 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. 1918 Comment
  CHSC42369  Carex multicaulis Lowell Ahart 1987-5-9 5594 Butte Along Pulga Road, about 1/2 mile south-west of Bardees Bar along the North Fork of the Feather River, about 3 miles south-west of Pulga. 365 Comment
  SEINET10752877  Carex multicostata Vernon H. Oswald, Lowell Ahart 1988-7-26 Oswald 3630 Butte Snopw Mt. region located ca. 6 air mi SE of Jonesville. Comment
  CAS-BOT-BC119721  Carex nervina V. Oswald; Lowell Ahart 1988-7-26 3623 Butte Snow Mt. region ca. 6 air mi SE of Jonesville. 2026 Comment
  UCD140541  Carex nervina L. P. Janeway; R. A. Schlising 1988-7-22 3056 Butte Coon Hollow Creek. 1920 Comment
  CAS-BOT-BC119558  Carex nudata A. A. Heller 1913-6-7 10818 Butte West Branch of the North Fork of the Feather river near Stirling. 914 Comment
  RSA755639  Carex nudata L. Ahart 2009-5-15 15708 Butte On the east bank of Big Chico Creek, on the west side of Ten Mile House Road, Upper Bidwell Park, about 3/4 air mile west of Highway 32, about 10 miles northeast of Chico. 234 Comment
  CHSC48559  Carex rossii L. P. Janeway; R. A. Schlising 1988-7-22 3064 Butte Upper canyon of Philbrook Cr 0.7 mi W of the pass. Near creeklet in ravine just above road. 1905 Comment
  CHSC44107  Carex stipata var. stipata L. P. Janeway 1987-6-8 2175 Butte Boggy shady area of Jack Cr on upper side of dirt road 8.6 mi south of Big Bar Mtn via dirt road. 746 Comment
  CHSC52872  Carex straminiformis L. P. Janeway; R. A. Schlising 1988-7-1 2916 Butte On the NE-facing flank of Snow Mtn and above Summit Lake. 2011 Comment
  CAS-BOT-BC116739  Carex subfusca A. A. Heller 1915-6-25 12018 Butte Chico Meadows in the Sierra Nevada. 1219 Comment
  CHSC106161  Carex subfusca Peter F. Zika 2009-6-17 24515 Butte Cascade Range Highlands (CaRH), below Concow Road 10 road miles above (N of) Route 70. 1100 Comment
  CHSC42555  Carex subfusca Lowell Ahart 1987-5-6 5544 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC76324  Carex subfusca G. F. Hrusa; T. D. Wilfred 1997-5-8 13759 Butte Northern California, Sierra Nevada. SE-facing serpentine slope above Little Butte Creek, N of Magalia, above Magalia Res. Immed. E of Holmwood Drive. [Original Lat./Long. on label is '39 51 N; 121 34 W']. 720 Comment
  CAS-BOT-BC115304  Carex utriculata L. P. Janeway 1987-7-5 2460 Butte Open dryish meadow near Dresser Camp, 3.0 mi N of Jones Meadow, 1889 Comment
  CAS-BOT-BC115190  Carex vernacula Lowell Ahart 1980-8-2 2518 Butte Humboldt Pk. 2300 Comment
  CAS-BOT-BC499135  Carex xerophila Peter F. Zika; L. P. Janeway 2012-5-16 25868 Butte Coutolenc Road 0.1 mi N of Skyway Rd. 720 Comment
  SEINET10367321  Carex xerophila P. F. Zika, L. P. Janeway 2012-5-16 25868 Butte Northern Sierra Nevada Highlands, Magalia Serpentine, Coutolenc Rd., 0.1 miles N. of Skyway Rd 720 Comment
  CHSC770  Caryopteris incana V. Holt 1952-7-2 Butte In Mrs. Sanborn's garden, Chico. 57 Comment
  CHSC6052  Castanea dentata M. MacArthur 1968-6-22 285 Butte Ca. 20 ft. SE of Bld. D along So-Will-lin-no st., Chico State College. 60 Comment
  CAS-BOT-BC248935  Castilleja M. S. Taylor 1978-7-18 1701 Butte On top of Humboldt Peak, at Humboldt Summit 2158 Comment
  CHSC44706  Castilleja affinis R. Banchero 1980-3-27 82 Butte Along Richardson's Springs Rd Ca 4 mi NE of its jct with Cohasset Hwy, Ca 1.3 mi W of the town of Richardson's Springs. 213 Comment
  LA209084  Castilleja affinis subsp. affinis E. B. Copeland; 1930-7-12 Butte above Jonesville 2100.0 Comment
  JEPS124198  Castilleja applegatei subsp. pinetorum Lowell Ahart 2015-4-13 20033 Butte About 2 1/2 miles (air) north of Jarbo Gap, about 17 miles (air) North of Oroville Comment
  CHSC23535  Castilleja attenuata M. S. Taylor 1976-3-9 1024 Butte On Burton's Mesa, ca. 500 yds n of the Skyway, ca. 13 mi e of Chico. 457 Comment
  CHSC90166  Castilleja attenuata John Copeland 1980-3-7 15 Butte About 1.5 mi north on Meridian Road from Hwy 99, 1.0 mi east of dirt road, 1 ft north and south side of road. Comment
  UCD80772  Castilleja attenuata CNPS SN Foothill Team 2006-4-19 SNNR 0744 Butte City of Chico, Upper Bidwell Park. 156 Comment
  CHSC4004  Castilleja lacera J. E. Bowlin 1967-4-14 20 Butte Ca. 3 feet n of Cohasset Rd. and ca. 2.7 miles e of cornor of Keefer Rd. and Cohasset Rd., Chico. 152 Comment
  JEPS119798  Castilleja lacera Lowell Ahart 2012-5-20 18100 Butte On the north side of the Humboldt Trail, about 50 yards northwest of the poor dirt road south of Highway 32, southeast part of Upper Bidwell Park, northeast of Chico. Comment
  UC454128  Castilleja miniata Miss Kate Conger 1907-1 Butte Brush Creek Comment
  CAS-BOT-BC48813  Ceanothus cuneatus A. A. Heller; H. E. Brown 1902-5-7 5488 Butte Berry Canyon (near Clear Creek) Comment
  CHSC31897  Ceanothus cuneatus L. Ahart 1974-3-8 309 Butte Peter Ahart Ranch, Honcut. 45 Comment
  HSC59635  Ceanothus cuneatus J. P. Smith 1973-3-22 5933 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  JEPS113416  Ceanothus diversifolius Lowell Ahart, Lawrence Janeway 2007-7-10 14283 Butte On the north side of Forest Road 21N31Y, about 6/10 mile west of Bald Rock Road, about 17 miles (air) northeast of Oroville 1032 Comment
  CAS-BOT-BC50786  Ceanothus integerrimus E. B. Copeland 1929-7-14 383 Butte Jonesville 1650 Comment
  CAS-BOT-BC50819  Ceanothus integerrimus A. A. Heller 1914-4-16 11293 Butte Chico-Centerville Road 8 miles from Chico, on the slopes albong Butte Creek Comment
  CHSC84646  Ceanothus integerrimus Matt Quinn 2001-4-29 48 Butte In foothill of Butte County, collected near Butte Creek, approximately 1/4 mile downstream of Steel Bridge on Centerville Road. 167 Comment
  UC1070736  Ceanothus integerrimus C. G. Albertus 1933-6-26 35 Butte 2 mi e Paradise; Chico quad. 152 Comment
  SEINET10493639  Ceanothus integerrimus var. californicus Mary Susan Taylor 1980-4-19 Taylor 2538 Butte S side of Humbug, NE of Centerville. With J.D. Jokerst. 366 Comment
  CHSC64651  Ceanothus lemmonii H. H. Schmidt; M. Merello, L. Woodruff 1993-6-15 862 Butte Plumas National Forest on state road 23N06 1.5 miles N of the junction with highway 70. 880 Comment
  UC870592  Ceanothus lemmonii Lewis S. Rose 1937-6-10 37377 Butte Forbestown 838 Comment
  CAS-BOT-BC52012  Ceanothus prostratus John Thomas Howell 1962-6-15 37449 Butte Magalia 731 Comment
  CHSC96989  Ceanothus prostratus Lowell Ahart; Lawrence Janeway 2007-7-10 14282 Butte On the north side of Forest Road 21N31Y, about 6/10 mile west of Bald Rock Road, about 17 miles (air) northeast of Oroville. 1032 Comment
  JEPS120143  Cedrus deodara Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18023 Butte On the north side of Big Chico Creek, on the south side of the paved park road, south of the old walnut orchard, south of Vallombrosa Avenue, about 1/10 miles west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  CHSC100470  Celtis australis Lowell Ahart; John Dittes, Josephine Guardino 2008-11-8 15425 Butte On the southeast side of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  RSA0035337  Celtis australis Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18022 Butte On the north side of Big Chico Creek, south of the path, south of the paved park road, south of the old walnut orchard, south of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. 76 Comment
  CHSC36525  Centaurea melitensis L. Ahart 1982-5-29 3447 Butte Peter Ahart Ranch, ca. 1.5 mi n and 2 1/4 mi e of Honcut. 50 Comment
  CHSC3362  Centaurea solstitialis M. Gregg 1966-5-7 161 Butte Approx. 5 miles north east of the Skyway on Humbug Rd. Comment
  JEPS117547  Centaurium muehlenbergii Lowell Ahart 2010-6-20 16828 Butte About 1/4 mile north of Cox Lane, about 1 1/2 miles east of Palermo Honcut Highway, Guidci Ranch, about 7 1/2 miles (air) southeast of Oroville 59 Comment
  CAS-BOT-BC288534  Centromadia fitchii John Thomas Howell 1959-9-20 34682 Butte Eastern outskirts of Oroville 60 Comment
  CHSC27062  Centunculus minimus Lowell Ahart 1978-5-1 Butte Peter Ahart Ranch, Honcut. 50 Comment
  JEPS106000  Centunculus minimus Lowell Ahart 2004-4-4 10716 Butte Bottom of a vernal pool, about 250 yards east of Wilber Road, northeast of the high hill crossed by Wilber Road, cattle pasture, about 3 miles (air) west of Thermalito 48 Comment
  CHSC68909  Cephalanthera austiniae Lowell Ahart 1997-7-11 7747 Butte Southeast of Cold Creek, about 2 miles (air) southwest of Bald Mountain, about 9 miles by road from Stirling City, or about 2 miles (air) northeast of Stirling City. 1219 Comment
  CHSC101319  Cerastium glomeratum Lowell Ahart 2009-4-22 15604 Butte West side of the Guardians Trail, along the small drainage, just north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  CHSC38294  Cerastium glomeratum Vernon Oswald 1983-3-9 142 Butte Upper Bidwell Park, Chico, on the abandoned road 400 ft n of Upper Park Rd. at Diversion Dam. In meadow. 115 Comment
  CHSC46613  Ceratophyllum demersum Vernon Oswald 1989-8-1 3910 Butte Butte Sink Wildlife Area (w portion of Schohr Ranch). In Little Dry Creek at the bridge ca. 1 mi n of Gridley-Colusa Hwy. 18 Comment
  CHSC99666  Cercis occidentalis H. Koeth 2007-4-26 Butte Chico State Campus. At the west entrance of Holt Hall, Planter box landscape. UTM 10 598699E 437946N Comment
  UC136899  Cercis occidentalis Dr. E. B. Copeland 1903-4-11 3045 Butte Chico Comment
  CAS-BOT-BC136998  Cercocarpus betuloides var. betuloides A. A. Heller 1915-4-12 11808 Butte Near Cohasset Comment
  CHSC1541  Cercocarpus betuloides var. betuloides M. Roberson 1956-5-14 Butte SW Paradise, along Skway. 426 Comment
  SEINET267157  Cercocarpus betuloides var. betuloides T. A. Ranker, PG Trapp 1994-6-17 1624 Butte Pence Road south of Paradise; Cherokee quad. 7.5 min topographic map; along road 395 Comment
  CHSC44857  Chaenactis glabriuscula var. heterocarpha Lowell Ahart 1979-6-9 1925 Butte East of Magalia. 640 Comment
  CHSC6011  Chamaecyparis lawsoniana M. MacArthur 1968-4-19 253 Butte Front lawn of Administration bld., near First Street, Chico State College. 60 Comment
  UC1565641  Chamaemelum fuscatum Lowell Ahart 1989-3-20 6193 Butte about 13 mi s of Oroville (about 3 mi w of Honcut, w of intersection of Highway 70 and Lower Honcut Road) 30 Comment
  CAS-BOT-BC279775  Chamaemelum fuscatum Lowell Ahart 1989-3-20 6193 Butte West of the intersection of Highway 70 and Lower Honcut Road, about 3 miles west of Honcut, about 13 miles south of Oroville 30 Comment
  CHSC52639  Chamaesyce hooveri R. D. Stone; R. E. Buck 1987-8-4 832 Butte Central Valley. Vina Plains, large vernal pool straddling fenceline (W of the fence) 0.4 miles WSW of the intersection of Highway 99 and Cana Highway. 56 Comment
  JEPS115676  Chamaesyce maculata Lowell Ahart 2009-10-8 16414 Butte South of a large ditch, on the north side of the road, about 20 yards northeast of Parking Lot 12, Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley 19 Comment
  JEPS121304  Chamaesyce maculata Lowell Ahart 2013-11-29 19290 Butte Below the high water line of Lake Oroville, about 250 yards W of the old road, about 3.5 air miles NE of Oroville Dam. Comment
  UC869013  Chamaesyce maculata Willis H. Wheeler 1935-10-24 296 Butte Foreign Plant Introduction sta. Chico 76 Comment
  CHSC31696  Chamaesyce nutans L. Ahart 1974-8-14 600 Butte Along North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC37373  Chamaesyce ocellata R. A. Schlising 1981-9-20 4196 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
  CHSC69719  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 1997-10-24 7942 Butte About 20 yards north of the South Fork of the Feather River and on the east side of Sucker Creek, strand of Lake Oroville, about 1/4 mile west of the Ponderosa Dam. 274 Comment
  JEPS115729  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2009-8-15 16285 Butte In a large wash, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville 33 Comment
  RSA754845  Chamaesyce serpillifolia subsp. serpillifolia L. Ahart 2009-8-15 16285 Butte In a large wash, Peter Ahart Ranch, about 1.5 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 34 Comment
  CHSC28882  Cheilanthes cooperae M. S. Taylor 1979-5-4 1990 Butte In Millsap Bar Campground, ca. 9 mi ne of jct with Millsap Bar Rd and Brush Creek Rd, ca. 26 mi ne of Oroville. 1005 Comment
  CAS-BOT-BC69476  Cheilanthes cooperae Wayne D. Dakan 1974-4-15 s.n. Butte Near bridge at West Branch of Feather River on Hwy. 70. Comment
  CAS-BOT-BC69441  Cheilanthes gracillima M. S. Taylor; L. Ahart; J. Jokerst 1982-1-17 5214 Butte Vicinity of mouth of Flag Canyon. On top of N. Table Mt., ca. 8 mi. n. of Oroville. 373 Comment
  CDA13321  Cheilanthes gracillima G. F. Hrusa, T. D. Wilfred 1996-7-9 13167 Butte Sierra Nevada; approx. 0.5 m. E of bridge over Marble Creek on USFS N60. Comment
  SEINET5867647 Image available Cheilanthes siliquosa L. S. Rose 1967-1 67076 Butte 1 mi S of Pulga, North Fork, Feather River. Comment
  CHSC48289  Chenopodium album Vernon Oswald 1987-8-9 3195 Butte Hwy 32 n of Forest Ranch at the 35.9 mi road marker, 2.1 mi sw of Lomo. 1127 Comment
  CHSC79987  Chenopodium album L. P. Janeway; B. Castro 1999-6-4 6456 Butte Sacramento Valley. Edge of walnut orchard along Ord Ferry Road 1.4 km south of the bridge over the Sacramento River. 30 Comment
  CHSC62025  Chenopodium atrovirens Vernon H. Oswald 1989-8-9 3931 Butte Logging Rd (G-Line) paralleling Butte Creek, 0.5 mi sw of Humboldt Rd, ca. 1.3 mi (air) sw of Butte Meadows. 1295 Comment
  CHSC83027  Chenopodium berlandieri Lowell Ahart 2002-10-17 9989 Butte On the hills below the high water line of Lake Oroville, about 1 1/2 miles south of Highway 162 (Oroville Quincy Highway), about 3 miles (air) northeast of Oroville Dam. 227 Comment
  JEPS108993  Chenopodium botrys Lowell Ahart 2006-10-8 13438 Butte Near a large gravel bar, east side of the North Fork of the Feather River, just east of where the river flows into a pool, on the west side of Highway 70, about 1/2 mile north of the Cresta Power House 609 Comment
  RSA29941  Chenopodium pumilio I. L. Wiggins 1928-9-9 3344 Butte Sandy Gulch Creek, 3 miles west of Chico Comment
  CHSC110401  Chenopodium strictum var. glaucophyllum Lowell Ahart 2012-9-28 18475 Butte On the east side of the parth, north of Big Chico Creek, on the west side of the Freeway, Lower Bidwell Park, Chico. 62 Comment
  CHSC117751  Chenopodium strictum var. glaucophyllum Lowell Ahart 2016-10-25 21373 Butte Around buildings, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 30 Comment
  RSA724845  Chenopodium strictum var. glaucophyllum L. Ahart 2006-9-28 13368 Butte E side of the N Fork of the Feather River, on the W side of Hwy 70, about 50 yards S of the Shady Rest Area S of the Arch Rock Tunnel. 445 Comment
  CHSC58910  Chimaphila menziesii Lowell Ahart 1992-7-29 6893 Butte About 1 mile east of the Carr Mine, about 1/2 mile north-west of Lotts Lake. 1828 Comment
  RSA718387  Chimaphila umbellata subsp. occidentalis L. Ahart 2006-6-24 12854 Butte On the west side of the dirt road (Ponderosa Way). On Cohasset Ridge, about 3.5 miles (air) northeast of Cohasset. 1131 Comment
  SEINET3451380  Chloris virgata Unknown 2006-8-2 6 .337 Butte East of Butte City, East of Butte City, along Ord Ferry Road, east of old Sacramento River district 30 Comment
  HSC38028  Chlorogalum angustifolium Thomas W. Nelson, Jane P. Nelson 1976-5-10 2494 Butte Beside SR 191 just N of its junction with SR 70 Comment
  CAS-BOT-BC252670  Chorizanthe membranacea Lowell Ahart 1984-6-8 4678 Butte Along the dirt road 1/10 mile north-west of the water tower, above the genterator about 1 mile east of teh Ponderosa Dam, about 2 miles north of Forbestown 475 Comment
  CHSC84285  Chorizanthe stellulata Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2003-5-27 10218 Butte Rifle and Trap Range, northeast of Horseshoe Lake, north of Parking Area E, Upper Bidwell Park, about 1 1/2 miles east of Manzanita Avenue, Chico. 103 Comment
  JEPS117520  Chorizanthe stellulata L. Ahart 2010-5-23 16735 Butte West side of Pine Trail, about 40 yards west of Highway 32, about 9 air miles northeast of Chico 479 Comment
  SEINET516311  Chorizanthe stellulata Vernon H. Oswald 1998-5-6 8986 Butte Upper Bidwell Park (new addition), Pine trail near the trailhead on Hwy 32 between Chico and Forest Ranch opposite Santos Rd. 453 Comment
  CHSC29004  Cicendia quadrangularis M. S. Taylor 1980-4-4 2456 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
  SEINET10972957  Cicendia quadrangularis Mary Susan Taylor 1984-4-6 Taylor 5398 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
  CAS-BOT-BC285281  Cirsium andersonii A. A. Heller 1914-8-6 11640 Butte About Chico Meadows 1219 Comment
  CHSC45659  Cirsium arvense Vernon Oswald 1987-7-29 3164 Butte 0.6 mi w of Coon Hollow Rd. on the dead-end spur road which parallels it on the south, ca. 2 mi (air) ne of Philbrook Reservoir. Roadside. 1783 Comment
  CHSC304  Cirsium occidentale var. venustum B. Richardson 1929-5-14 Butte Cohasset. 609 Comment
  SEINET10473708  Cirsium proteanum Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4075 Butte T20N R5E sec 6. Along Bloomer Hill Rd, ca. 3/4 mi w of Oroville-Quincy Hwy, ca. 15 mi ne of Oroville. Foothill Woodland; 425 m. 425 Comment
  CHSC21142  Cirsium vulgare M. S. Taylor 1975-8-31 878 Butte On Ernies Island in Butte Creek, ca. 50 ft s of Humboldt Rd, ca. 1/2 mi e of Butte Meadows. 1341 Comment
  CAS-BOT-BC228761  Cistanthe umbellata Lowell Ahart 1983-7-29 4247 Butte About 2 miles east of Milsap Bar, about 25 miles north-east of Oroville 900 Comment
  SEINET10865742  Clarkia Tim Holtsford 1992-5-25 Holtsford 920525 -1-B Butte Silvera court, 0.1 mi w of pentz rd, near lime saddle rec area. Ceanothus, arctostaphylos, oaks, buckeyes. Comment
  CHSC28707  Clarkia arcuata R. A. Schlising 1979-5-8 3389 Butte E of Chico along the Skyway (Hwy to Paradise). Comment
  CHSC35142  Clarkia arcuata R. Schlising 1980-6-12 3688 Butte NW part of county, 0.25 mi S of Tehama County line on Hwy 32. 1121 Comment
  RSA0059981  Clarkia arcuata R. T. Riding 1968-4-13 11 Butte North Table Mountain 396 Comment
  RSA337386  Clarkia biloba subsp. brandegeeae L. Ahart 1984-6-8 4658 Butte Along Ponderosa Way, 1/8 mile W of Ponderosa Dam, 2 miles NW ofForbestown 370 Comment
  CAS-BOT-BC164134  Clarkia concinna Mrs. J. H. Morrison 1932-5-30 s.n. Butte Durham Comment
  UC725459  Clarkia concinna subsp. concinna A. A. Heller 1938-5-28 15114 Butte 22 mi from Oroville (on the Feather River Highway, just e of Jarboe Pass) 609 Comment
  RSA144790  Clarkia gracilis subsp. albicaulis G. I. Stage, R. Thorp 1959-6-21 59 -120 Butte 11.9 miles north-east of Chico. Comment
  CAS-BOT-BC171883  Clarkia gracilis subsp. gracilis Lowell Ahart 1979-4-28 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  POM37797  Clarkia gracilis subsp. gracilis C. C. Bruce 1898-05 2419 Butte Grain fields. Comment
  CHSC71156  Clarkia mildrediae subsp. lutescens L. P. Janeway 1995-7-7 4837 Butte Chino Ridge, 200 ft southeast of Chino Creek along Road 23N28, 4.6 mi north of Road 22N34. South-facing road cutbank. 749 Comment
  CAS-BOT-BC163284  Clarkia modesta Saichi Kawahara 1968-5-4 372 Butte James Ripley's property, Graham Road, Paradise 640 Comment
  CHSC70736  Clarkia mosquinii L. P. Janeway; Perrie Cobb, Linnea Hanson 1993-7-1 4410 Butte Along French Creek Road 2.6 mi northeast of Stanwood Saddle and Oroville-Quincy Hwy. Southwest-facing road cutbank. 902 Comment
  CHSC52094  Clarkia purpurea R. C. Kirkpatrick 1972-4-25 39 Butte Found ca. 100 yds. se of Horseshoe Lake and ca. 50 yds sw of the skeet shooting range. 152 Comment
  UCD80464  Clarkia purpurea CNPS SN Foothill Team 2005-5-3 SNFN 0197 c Butte City of Chico, Doe Mill Meadowfoam Preserve, located ca. 200 m at 240 degrees from the reserve entrance gate, and about 75 m from the east fence. 83 Comment
  CHSC97358  Clarkia purpurea subsp. quadrivulnera Paul Maslin 2005-6-1 55 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). UTM: 10610858E 4410556N. 548 Comment
  JEPS117277  Clarkia purpurea subsp. quadrivulnera Lowell Ahart 2010-5-14 16669 Butte Near south park fence, about 1/4 mile west of the entrance to the Disc Golf Area, west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 363 Comment
  SEINET10453161  Clarkia purpurea subsp. quadrivulnera Lowell Ahart, Peter Ahart 1983-6-12 Ahart 4036 Butte T20N R5E n half sec 36. Ca. 1 mi s of Crystal Hill, n of Oregon Gulch, near Lake Oroville, ca. 7 mi sw of Feather Falls. Yellow Pine Forest. Comment
  CAS-BOT-BC172383  Clarkia purpurea subsp. viminea H. E. Brown 1897-4-15 212 Butte Near Clear Creek Comment
  CHSC1110  Clarkia purpurea subsp. viminea V. Holt 1942-5-16 Butte Chico Creek. 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
  UCR133590  Clarkia rhomboidea H. F. Copeland 1931-6-10 1520 Butte Rocky crest of ridge between Willow and Colby Creeks 1677 Comment
  CAS-BOT-BC164786  Clarkia rhomboidea A. A. Heller; H. E. Brown 1902-5-12 5537 Butte Grade between Clear Creek and Paradise Comment
  SD122552  Clarkia rhomboidea Lowell Ahart, Peter Ahart 1984-5-28 4651 Butte On a large road cutbank along Highway 40, now called Dark Canyon Rd, ca. 2 miles E of Old Yankee Hill, ca. 16 miles NE of Oroville; Foothill Woodland; 449 Comment
  CHSC39353  Clarkia unguiculata Lowell Ahart 1983-6-30 4170 Butte On the road cut-banks along old Highway 40, near the rest area, and near where the road runs into Lake Oroville, about 4 miles south of Jarbo Gap. 350 Comment
  CHSC46135  Clarkia unguiculata Lowell Ahart 1980-5-13 2266 Butte Along Pacific Heights Road, about 1 mile west of Highway 70, about 2 1/2 miles south-west of Oroville. 33 Comment
  CHSC1117  Clarkia xantiana J. Wakeman 1963-5-18 Butte In College Greenhouse. 57 Comment
  CHSC97425  Claytonia lanceolata Robert Fischer 2006-6-11 1014 Butte Butte Meadows. North-east corner of Butte County along Scotts John Road 1.5 miles north of county road 26N27 and 5.5 miles north of Humboldt Road junction. UTM: 10634233E 4441779N. 1752 Comment
  CHSC98377  Claytonia palustris Dean Wm. Taylor; Tom Engstrom 2004-7-21 19200 Butte Cornelia Lott Sank Memorial Spring, Humbug Summit Road, growing in moist bed of stream draining the site ca. 150 ft downslope to the SE of the road. 1524 Comment
  CHSC10812  Claytonia parviflora subsp. parviflora Lowell Ahart 1965-4-11 Butte Walsh Ranch. 60 Comment
  CHSC109115  Claytonia parviflora subsp. parviflora Lowell Ahart 2012-3-23 17802 Butte On the sides of the trail down to Big Chico Creek, about 70 yards west of Ten Mile House Road, about 3/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. 202 Comment
  RSA469283  Claytonia parviflora subsp. parviflora L. Ahart, Peter Ahart 1984-6-10 4711 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown. 700 Comment
  CAS-BOT-BC439773  Claytonia perfoliata Lowell Ahart 1984-6-10 4711 Butte About 2 miles south-west of the Forbestown Diversion Dam, north-east of Forbestown 700 Comment
  JEPS115238  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
  CAS-BOT-BC443703  Claytonia rubra M. S. Taylor 1982-5-23 4510 Butte S side of hwy 70, by Arch Rock Tunnel, ca. 1/2 mi sw of Butte-Plumas county line. 487 Comment
  CAS-BOT-BC443764  Claytonia rubra subsp. rubra A. A. Heller 1915-6-25 12020 Butte Chico Meadows in the Sierra Nevada 1219 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
  UC852042  Claytonia rubra subsp. rubra A. A. Heller 1915-6-25 12020 Butte Chico Meadows; Sierra Nevada 1219 Comment
  CHSC3379  Clematis armandii Robert L. Smith 1966-3-3 26 Butte U.S. Plant Introduction Station 5 miles S.E. of Chico. Comment
  CHSC90178  Clematis lasiantha Ross L. Jones 1989-4-12 22 Butte Ca. 200 m s of Butte Creek and 400 m e of Covered Bridge, 10.2 km ese of Chico. 150 Comment
  POM98212  Clematis lasiantha C. C. Bruce 1897-04 1903 Butte Butte Creek. Comment
  CHSC45417  Clematis ligusticifolia Lowell Ahart 1976-6-24 1144 Butte Along the edge of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles south of Oroville. 51 Comment
  SEINET12268888  Collinsia bicolor Unknown 5 s.n. Butte no further locality Comment
  UCD123666  Collinsia sparsiflora Michael A. Vincent; Ethan H. Freid 1998-4-6 8129 Butte Table Mountain. Comment
  UC175549  Collinsia tinctoria A. A. Heller 1913-5-28 10768 Butte Table Mountain 8 mi n of Oroville 182 Comment
  UC129469  Collomia heterophylla Miss Kate Conger 1907-1 Butte Brush Creek Comment
  SD3880  Collomia linearis E. B. Copeland Butte Comment
  CHSC41369  Collomia tinctoria R. A. Schlising; Sandra Morey 1982-8-31 4381 Butte N Butte County, Cherry Hill Meadow, N and E of Butte Meadows off Humboldt Road and N of Butte Creek. At stream edge. 1524 Comment
  UCD118256  Collomia tinctoria E. B. Copeland 1931-6-29 679 Butte Jonesville. Along Butte Creek. 1500 Comment
  CHSC87557  Comandra umbellata subsp. californica R. D. Fischer 2004-4-11 60 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located along 10 Mile House Road where it parallels Chico Creek, creek side of rd. 228 Comment
  UC1562472  Comandra umbellata subsp. californica Vernon H. Oswald and Lowell Ahart 1990-5-29 4261 Butte 1.8 mi ne of Lomo (nw side of Humboldt Road (to Butte Meadows)); Humboldt Road 1380 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
  NY643134  Convolvulus arvensis H. M. Edwards 06 1917 s.n. Butte Comment
  CAS-BOT-BC286066  Conyza canadensis Lowell Ahart 1986-10-16 5407 Butte Near the Enterprise Launch Area parking lot, near Lake Oroville, about 1/4 mile south-west of Lumpkin Road, north-east of Oroville 292 Comment
  JEPS102543  Conyza canadensis Lowell Ahart 2000-11-4 8716 Butte Just north of Rich Gulch Road, about 1 mile north of the West Branch Bridge across Lake Oroville, about 5 miles (air) SE of Paradise. 335 Comment
  RSA770102  Conyza canadensis L. Ahart 2008-11-4 15396 Butte Below high water line of Lake Oroville, about one mile southeast of the large parking area on the north end of Oroville Dam, about 5 air miles northeast of Oroville. 264 Comment
  RSA261487  Corallorhiza maculata Robert C. Burness 1970-5-24 78 Butte Northeast of Paradise from Stirling City, 6 miles southeast on Ragdump Road to Rudds Cabin on Feather River Branch 762 Comment
  UCD138901  Corallorhiza striata Kenneth D. Stewart 1965-7-15 s.n. Butte along State Highway 32, around 20 miles north of Forest Ranch. Comment
  CAS-BOT-BC237927  Cordylanthus Lowell Ahart 1980-7-29 2495 Butte Along Hurleton Swedes Flat Road 600 Comment
  CHSC30950  Cordylanthus pilosus subsp. trifidus L. Ahart 1980-7-4 2450 Butte Ca. 1/2 mi se of the Oak Grove Cemetary, ca. 1 mi se of Hurleton. 600 Comment
  JEPS104641  Cordylanthus pilosus subsp. trifidus Lowell Ahart 2003-8-7 10479 Butte On the south side of a poor dirt road, ca 1/2 mi n of Cherokee Rd, North Table Mountain, ca 7 mi (air) n of Oroville. 320 Comment
  POM219138  Cordylanthus tenuis subsp. viscidus H. F. Copeland 1928-8-14 382 Butte On fire-swept ridge between Jones Creek and Scotch John Creek. Neighborhood of Jonesville. Comment
  SEINET10453480  Cornus nuttallii Mary Susan Taylor 1975-4-17 Taylor 480 Butte Corner of Arcadian and Sacramento Streets, Chico. 61 Comment
  SEINET10874016  Cornus nuttallii Mary Susan Taylor 1980-4-27 Taylor 2559 Butte T23N R3E nw sec 27. Paradise quad. Along Middle Butte Creek off of Little Butte Creek in Riparian Woodland, very shady, ca. 1.5 mi SE of Nimshew. With J.D. Jokerst. 610 Comment
  CAS-BOT-BC209586  Cornus sericea E. B. Copeland 1930-6-25 431 Butte Jonesville 1500 Comment
  CHSC95174  Cornus sessilis R. D. Fischer 2004-5-2 800 Butte Chico. Sierra Nevada foothills within upper Bidwell park in Chico on the east-side addition off Hwy 32. Collected on the south side of Big Chico Creek near north end of park boundary. 228 Comment
  CHSC87964  Coronilla varia Lowell Ahart 2004-6-22 11121 Butte On the west side of Doe Mill Road, about 1 mile southeast of the bridge across Butte Creek, about 2 1/2 miles (air) southeast of Forest Ranch, about 5 miles (air) southwest of Stirling City. 713 Comment
  UC1562396  Coronopus didymus Lowell Ahart 1990-5-28 6501 Butte about 2 1/2 mi n.e. East Gridley (along edges of Palm Avenue, about 1/12 mi. e. of Larkin Road) 30 Comment
  CAS-BOT-BC401860  Corydalis caseana subsp. caseana E. B. Copeland 1929-7-3 365 Butte Jonesville 1500 Comment
  CDA34650  Cotoneaster lacteus L. Ahart 2009-8-23 16302 Butte On the south side of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. Comment
  CHSC44467  Cotula australis Lowell Ahart 1988-11-27 5927 Butte Near the south-west corner of Wells Fargo Bank, Gridley. 28 Comment
  CHSC87230  Cotula australis Lowell Ahart 2004-3-12 10703 Butte Grave of Tillie Moody, east of the entrance gate, Thompson Flat Cemetery, about 1/8 mile east of Cherokee Road, about 1 mile north of Oroville. 61 Comment
  RSA769676  Cotula australis L. Ahart 2009-3-9 15497 Butte At the home, Peter Ahart Ranch, about 1.5 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 34 Comment
  JEPS104028  Cotula coronopifolia Lowell Ahart 2003-6-23 10310 Butte In a rice field, Peter Ahart Ranch, ca 300 yd e of the Palermo Honcut Highway, ca 2 1/8 mi n of Honcut, ca 12 mi south of Oroville. 30 Comment
  UC1562845  Cotula coronopifolia Barbara Ertter with Lowell Ahart 1986-4-13 5903 Butte ca 2 air mi nne Honcut (Peter Ahart Ranch, between Oroville and Marysville) 30 Comment
  CAS-BOT-BC427625  Crassula aquatica Lowell Ahart 1986-11-14 5459 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
  CHSC26728  Crassula aquatica M. S. Taylor; M. Hayes 1978-4-14 1553 Butte On e side of Williams Rd, ca. 1/4 mi n of Pentz Rd, on Butte College campus, ca. 15 mi s of Chico. 30 Comment
  CHSC38403  Crassula aquatica Vernon Oswald 1983-5-11 466 Butte Upper Bidwell Park, Chico, along the n shore of Horseshoe Lake. 100 Comment
  CAS-BOT-BC427665  Crassula connata Lowell Ahart 1990-4-8 6442 Butte On the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville 33 Comment
  CHSC108799  Crassula connata Lowell Ahart 2012-4-9 17837 Butte Vernal pool, west of South Rim Trail, south part of Upper Bidwell Park, about 2 1/4 miles (air) northeast of Chico. 141 Comment
  CHSC37369  Crassula connata R. A. Schlising 1982-4-24 4229 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
  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
  SEINET10449715  Crassula muscosa Mary Susan Taylor 1980-3-15 Taylor 2381 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
  CHSC112195  Crassula tillaea Lowell Ahart 2013-4-20 18559 Butte In corral at the barn, about 1/4 mile north of the Honcut Cemetary, about 3 1/4 mile (air) northeast of Honcut. 47 Comment
  CHSC26720  Crassula tillaea Hayes; Taylor 1978-4-14 151 Butte On the east side of Williams road, approx. 1/4 mi n of Pentz road on the Butte College Campus. 65 Comment
  JEPS107326  Crassula tillaea Lowell Ahart 2005-4-14 11726 Butte About 20 feet east of the railroad tracks, north of Spruce Street, Gridley 28 Comment
  POM356318  Crepis acuminata M. M. Boney 1897-1 s.n. Butte [Unspecified] Comment
  CHSC33522  Crepis pleurocarpa R. A. Schlising; R. Banchero, K. Tarp 1981-7-11 4139 Butte E of N Fork of Feather River. Along Coyote Gap road, ca 0.5 mi S of Coyote Gap. 1219 Comment
  JEPS115618  Crucianella angustifolia Lowell Ahart 2009-5-15 15706 Butte On the east side of Big Chico Creek, on the east side of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 234 Comment
  JEPS119877  Crucianella angustifolia Lowell Ahart 2012-6-2 18132 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. Comment
  JEPS98582  Crucianella angustifolia Lowell Ahart 2000-5-13 8354 Butte 5 mi SW of Oroville (Thermalito Afterbay, S side of access road to boat ramp, W of Larkin Road, 1 1/4 mi S of Oroville Airport) 42 Comment
  JEPS98714  Crucianella angustifolia Lowell Ahart 2000-5-13 8354 Butte 5 mi SW of Oroville (Thermalito Afterbay, S side of access road to boat ramp, W of Larkin Road, 1 1/4 mi S of Oroville Airport) 42 Comment
  CHSC31726  Crypsis schoenoides L. Ahart 1974-9-8 633 Butte Bottom of a wash. Peter Ahart Ranch, Honcut. 45 Comment
  CAS-BOT-BC190171  Crypsis vaginiflora A. A. Heller 1914-7-31 11632 Butte Sacramento Valley about 6 miles northwest of Chico. Chico-Hamilton Road. Comment
  SEINET10870092  Cryptantha affinis Lowell Ahart, Peter Ahart 1984-6-10 Ahart 4708 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown; Yellow Pine Forest; 700 m. 700 Comment
  CHSC40754  Cryptantha flaccida Lowell Ahart 1985-5-6 4931 Butte Along Table Mountain Boulevard, south of the Cambell Overflow, 1/2 mile south of the intersection of Highway 70 and 149, about 7 miles north of Oroville. 100 Comment
  CHSC45268  Cucurbita foetidissima Vernon Oswald 1984-8-20 1652 Butte Midway Rd. at Butte Creek s of Durham. 45 Comment
  NY16719  Cupressus macnabiana C. B. Wolf 1934-10-5 6161 Butte This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UC1134222  Cupressus macnabiana H. A. Jensen 1933-12-15 369 Butte 1 mi sw Brownsville; Smartsville Quadrangle Comment
  UCD133580  Cupressus macnabiana M. Vincent 1961-3-27 14 Butte One mile north of Magalia on rocky bluff. 914 Comment
  RSA718398  Cuscuta californica L. Ahart 2006-7-4 12911 Butte Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 31 Comment
  JEPS110256  Cuscuta californica var. californica Lowell Ahart 2006-7-4 12911 Butte Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville 30 Comment
  UCD126343  Cuscuta subinclusa L. E. Hazeltine 1916-7-28 s.n. Butte Chico. Comment
  CHSC61293  Cycladenia humilis var. humilis Lowell Ahart 1993-7-31 7144 Butte On the south side of the dirt road that leads to Ramsey Bar, about 1/2 mile north of Ramsey Bar. 1371 Comment
  NY43591  Cydonia oblonga S. Bianco 1995-11-10 1060 Butte 8841 Skyway Rd (Private land holding) 640 Comment
  CHSC27981  Cymopterus terebinthinus var. californicus M. S. Taylor 1978-7-18 1708 Butte On e side of Humboldt Peak, at Humboldt Summit. 2133 Comment
  CAS-BOT-BC190373  Cynosurus John Thomas Howell 1980-5-26 53582 Butte Sierra Nevada. 2 miles northeast of Pulga Bridge, North Fork of Feather River. Comment
  CHSC103980  Cynosurus echinatus Lowell Ahart 2010-5-14 16660 Butte Area of erosion control, Disc Golf Area, about 100 yards west of the entrance to the Disc Golf Area, about 120 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 372 Comment
  CHSC62802  Cynosurus echinatus L. P. Janeway 1993-6-3 4371 Butte Plumas National Forest. South end of Swayne Hill, along edge of the road to Big Bar Mtn (23N28). 731 Comment
  CHSC45260  Cyperus difformis L. P. Janeway 1986-9-20 1879 Butte Gravel bar along east side of Sacramento River just SE of the Ord Ferry Rd bridge. 28 Comment
  CHSC81932  Cyperus difformis L. P. Janeway 2001-6-13 7167 Butte Sacramento Valley. On east side of the Sacramento River about 1.8 km southeast of Ord Ferry Road bridge. 29 Comment
  UCD141025  Cyperus difformis J. M. Tucker 1953-8-28 2680 Butte Biggs Rice Experiment Station. Comment
  JEPS120107  Cyperus eragrostis Lowell Ahart 2012-6-14 18191 -A Butte Lawn on the south side of the path, southwest of CARD Community Center, Lower Bidwell Park, Chico. Comment
  JEPS94691  Cyperus eragrostis Lowell Ahart 1998-6-30 8009 Butte about 7 air mi n of Oroville (w of the ione oak tree, w of the cow chute on the w side of Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 403 Comment
  SEINET10466870  Cyperus eragrostis Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4102 Butte T21N R5E sec 30. Along Bloomer Hill Rd, ca. 3 mi nw of Oroville-Quincy Hwy, ca. 16 mi ne of Oroville. Yellow Pine Forest; 700 m. 700 Comment
  JEPS97341  Cyperus flavescens Lowell Ahart 1995-8-19 7618 Butte 1 mi N and 2 3/4 mi E of Honcut; Peter Ahart Ranch 36 Comment
  JEPS98697  Cyperus flavescens Lowell Ahart 2000-8-23 8664 Butte On the margins of a small pond, about 1/2 mile west of Pacific Heights road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. 42 Comment
  CDA2587  Cyperus fuscus L. Ahart, Vernon Oswald 1999-10-3 8287 Butte Along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. Comment
  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
  CHSC68395  Cyperus niger L. P. Janeway; C. A. Janeway 1986-10-4 1909 Butte Gravel bar along Butte Creek about 2 1/2 mi east of The Skyway. 45 Comment
  CHSC68400  Cyperus niger L. P. Janeway 1988-6-14 2760 Butte Gutter of the road to Doe Mill Ridge; low in the northwest side of the canyon of Little Chico Creek about 1 3/4 mi south of Ten Mile House. 228 Comment
  UCSB63742  Cyperus niger Ahart, Lowell 1998-6-30 Butte T20N, R4E, northeast 1/4 Section 17; west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 403 Comment
  UC478548  Cyperus squarrosus E. B. Copeland 1931-7-17 612 Butte Jonesville 1700 Comment
  CHSC66454  Cyperus strigosus Vernon H. Oswald; Lowell Ahart 1996-6-10 7730 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. On the riprapped bank of the Sacramento River at the N end of the Riparian Sanctuary. 28 Comment
  CHSC68408  Cyperus strigosus L. P. Janeway; C. A. Janeway 1986-9-14 1865 Butte On bank along small slough/backwater of the Sacramento River at 'the washout. 36 Comment
  CHSC68419  Cyperus strigosus L. P. Janeway 1986-10-19 1941 Butte Table Mountain Road about 0.7 mi northwest of Garden Drive, where it is right at the base of the railroad fill and overlooking the Thermalito Forebay. 91 Comment
  JEPS120149  Cyperus strigosus Lowell Ahart 2012-10-20 18501 Butte On the south side of Big Chico Creek, about 100 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  UCD141152  Cyperus strigosus L. E. Hazeltine 1916-7-27 s.n. Butte Chico. Comment
  CHSC31230  Cystopteris fragilis M. S. Taylor 1980-3-8 2375 Butte Pulga community, ca. 1 mi ne of Hwy 70, ca. 28 mi ne of Oroville. 487 Comment
  CHSC44603  Cystopteris fragilis Vernon Oswald; Lowell Ahart 1987-8-5 3184 Butte Rock outcrops skirtinig the n flank of Humboldt Peak on the Butte-Plumas county border, s of the Pacific Crest Trail. 2072 Comment
  UC1609399  Cystopteris fragilis Lowell Ahart 1993-6-26 7037 Butte ca. 1 air mi nw Lost Creek Reservoir Dam (Jackass Flat); Mooreville Ridge 1158 Comment
  UC399278  Cystopteris fragilis Mrs. R. M. Austin May 1896 244 Butte bluffs, Butte Creek Butte Creek Comment
  CAS-BOT-BC445504  Damasonium californicum Lowell Ahart 1979-5-20 s.n. Butte 2 mi s of Palermo. Along the Western Pacific Railroad. 35 Comment
  UCR143548  Danthonia americana H. F. Copeland 1931-6-11 1558 Butte Jonesville, Butte Creek Meadows 1829 Comment
  CHSC74039  Danthonia californica var. americana B. Castro 1998-7-8 802 Butte Sunset Hill Meadow. Ca 2 air mi W of Forbestown, ca 0.2 mi S of Sunset Hill fire lookout and 300 ft S of Forbestown Rd, at headwaters of New York Creek. Meadow at end of old dirt rd at E edge of old homestead site. 929 Comment
  CHSC84373  Darmera peltata Lowell Ahart 2003-8-26 10547 Butte On the bottom of the South Fork of the Feather River, about 1/2 mile north of Golden Trout Crossing, about 6 miles (air) northeast of Feather Falls. 975 Comment
  RSA719714  Darmera peltata Michael A. Vincent, K. Levings 2006-7-29 12897 Butte Along Rt. 32, ca. 23 miles south of junction with Rt. 36 Comment
  CHSC25271  Daucus pusillus M. S. Taylor 1977-6-26 1386 Butte N side of Ponderosa Way, ca. 3 mi w of Forest Ranch. 548 Comment
  UCD69668  Delphinium Laura Tanata 1982-4-18 24 Butte East side of road on Highway 70, 4.2 miles south of Grand Avenue exit; valley grassland community dominated by grasses, on a dry, sunny, gravel terrace; common erect herb scattered throughout, 4 1/2 dm tall, flower purple. 35 Comment
  UCD95779  Delphinium hansenii W. R. Powell 1968-5-16 1501 Butte Along Olive Highway, 4 miles east of Oroville. 304 Comment
  JEPS104466  Delphinium hansenii subsp. hansenii Lowell Ahart 2003-5-27 10225 Butte On the e side of the dirt road, at Parking Area P, Upper Bidwell Park, ca 5 mi e of Manzanita Avenue, Chico. 228 Comment
  CHSC84134  Delphinium hesperium subsp. pallescens Lowell Ahart 2003-5-14 10174 Butte About 150 yards west of the dredge piles along North Honcut Creek, about 2 1/2 miles north and 2 1/2 miles east of Honcut, about 12 miles southeast of Oroville. 60 Comment
  CHSC31396  Delphinium nudicaule J. D. Jokerst 1979-4-13 1202 Butte Top of North Table Mt in the uppermost reaches of Coal Cr Canyon at the W edge of the mountain. 396 Comment
  CHSC3562  Delphinium nudicaule R. D. Briggs 1966-3-2 51 Butte Salmon Hole,' 4 miles N.E. of the Bidwell Park golf course, Chico. Ledge above creek. Comment
  CHSC38163  Delphinium nudicaule Vernon Oswald 1983-3-4 108 Butte Upper Bidwell Park, Chico, at Devil's Kitchen (2.1 mi e of the power lines). 219 Comment
  CHSC81545  Delphinium nudicaule Petra M. Lee 2000-4-19 Butte Chico. Upper Bidwell Park at Green Gate, 6.8 mi past Bruce Rd on Hwy 32. 243 Comment
  POM99315  Delphinium nudicaule C. C. Bruce 1897-04 s.n. Butte Butte Creek. Comment
  CAS-BOT-BC8028  Delphinium nuttallianum Herbert Faulkner Copeland 1929-6-12 1211 Butte Jonesville, near north Willow Creek 1524 Comment
  CHSC94035  Delphinium patens subsp. patens R. D. Fischer 2005-4-30 717 Butte Sierra Nevada foothills, adjacent Hwy. 32, below Forest Ranch in the Big Chico Creek Ecological Reserve on Lookout Trail. Plant collected off brushy, north facing slope. 518 Comment
  CAS-BOT-BC121622  Delphinium patens subsp. patens Alice Eastwood 1921-5-22 10567 Butte Los Vergils Comment
  CHSC31845  Delphinium variegatum L. Ahart 1974-3-18 323 Butte In pasture fields; Peter Ahart Ranch, Honcut. 45 Comment
  CAS-BOT-BC16977  Delphinium variegatum subsp. variegatum A. A. Heller; H. E. Brown 1902-5-10 s.n. Butte Berry Canyon (Near Clar Creek) Comment
  CHSC24771  Delphinium variegatum subsp. variegatum L. J. Gut 1976-4-23 11 Butte Ca. 30 yds. s of the Skyway, ca. 15 mi e of Chico. 457 Comment
  UC204957  Delphinium variegatum subsp. variegatum A. A. Heller 1914-3-18 11205 Butte low hills 8 mi n Oroville Comment
  CAS-BOT-BC17023  Delphinium variegatum subsp. variegatum A. A. Heller 1918-4-19 12987 Butte Valley oak belt on the banks of Pine creek 12 miles north of Chico Comment
  POM253323  Dendromecon rigida A. A. Heller 1938-6-14 15150 Butte Along the Feather River Highway near Yankee Hill Road about 20 miles from Oroville Comment
  JEPS122069  Deschampsia cespitosa subsp. cespitosa Lowell Ahart 2014-7-13 19656 Butte About 150 yards southeast of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir Comment
  JEPS94300  Deschampsia cespitosa subsp. cespitosa Lowell Ahart 1997-8-1 7770 Butte about 8 air mi ne of Stirling City (about 1/4 mi e of Table Mountain, on bottom of Little Kimshew Creek, Snow Meadow); Snow Meadow, Little Kimshew Creek 1524 Comment
  SEINET3450775  Deschampsia cespitosa var. cespitosa Unknown 2003-7-14 10395 Butte Bear Valley, Bear Valley, about 2 air miles west, Barrel Spring, about 1.5 air miles south of Bartlett Springs Road 390 Comment
  CHSC26799  Deschampsia danthonioides M. S. Taylor; M. Hayes 1978-4-14 1547 Butte In vernal pools on e side of Williams Rd ca. 1/4 mi n of Pentz Rd, on Butte College campus, ca. 15 mi s of Chico. 30 Comment
  CHSC52152  Deschampsia danthonioides Jeffrey D. Prouty 1979-4-18 208 Butte Northernmost Butte county. Cana-Pine Creek Road ca. 500 yds nw of Singer Creek. H. Wurlitzer Ranch ca. 10 mi n of Chico. Eastern margin of road. 57 Comment
  CHSC49534  Deschampsia elongata Vernon Oswald; Lowell Ahart 1987-7-1 3062 Butte Lily Pond' located ca. 0.6 mi (air) w of Butte Creek House and 0.25 mi s of Humbug Rd., ca. 2.75 mi (air) se of Jonesville. 1813 Comment
  CHSC59045  Deschampsia elongata Lowell Ahart 1992-7-21 6808 Butte On the high sides of a snow lake, on the south side of Coon Hollow, about 2 (air) miles north-east of Philbrook Reservoir. 1737 Comment
  CHSC94017  Deschampsia elongata R. Fischer 2005-9-5 663 Butte Location about 4 road miles east of Jonesville adjacent to county road 26N11, ca. 1 mile north of Humboldt Road. Plants growing at edge of Scotts John Creek in an area of mixed pine and fir forest. 1737 Comment
  UC1609007  Deschampsia elongata Lowell Ahart 1993-9-13 7233 Butte ca. 1 mi. s.e. Butte Meadows (along Bolt Creek); Bolt Creek 1325 Comment
  CHSC97791  Dianthus armeria subsp. armeria L. P. Janeway 2007-8-12 9156 Butte Northern High Sierra Nevada. Along old Berry Creek Road 1.6 road km north of Oroville-Quincy Hwy; 1.8 air km south of the mouth of Berry Creek at North Fork Feather River (Lake Oroville). 421 Comment
  POM196108  Dicentra formosa E. B. Copeland 1929-7-22 364 Butte Jonesville. 1500 Comment
  SEINET12089316  Dicentra formosa J. P. Kroessig 1977-1 17 Butte SW shore of Magalia Reservoir, ca 0.5 mi SE of Magalia. Paradise Quadrangle, 15'. SE 1/4 of Sect 707 Comment
  UC1362276  Dicentra formosa K. R. Stern Oct 1963 2068 Butte ca 12 mi e Chico (ca 2 mi s of Highway 32 at 15 mile house, along banks of creek) Comment
  CAS-BOT-BC402391  Dicentra formosa subsp. formosa Marion Ownbey 1964-4-21 s.n. Butte Collected by the banks of Heinz Creek, S side of the canyon of N. fork of the Feather River, ca. 1/2 mi. E of Poe Power Dam Comment
  CHSC70889  Dicentra uniflora Vernon Oswald 1998-4-30 8984 Butte Humboldt Rd. between Lomo and Butte Meadows, near the 4533 ft. BM ca. 2 mi northeast of Hwy. 32. Slope looking down into Big Chico Creek Canyon. 1381 Comment
  SEINET10892860  Dichanthelium lanuginosum Lowell Ahart 1987-5-27 Ahart 5715 Butte On dry sand, 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
  CHSC2096  Dichelostemma capitatum subsp. capitatum E. Canfield 1904-5-7 Butte Hooker Oak field. 76 Comment
  CHSC4224  Dichelostemma capitatum subsp. capitatum J. Senter 1967-3-10 26 Butte Abundant along Upper Bidwell Rd. from Horseshoe Lake east, Chico. 152 Comment
  CHSC96620  Dichelostemma capitatum subsp. capitatum L. P. Janeway; B. Castro 2006-5-7 8578 Butte Northern High Sierra Nevada. Top of west-facing serpentine outcropping above Little Butte Creek 0.4 km south of Paradise Lake dam. 762 Comment
  POM109913  Dichelostemma capitatum subsp. capitatum C. C. Bruce 1897-02 2127 Butte [No locality information provided] Comment
  CHSC109154  Dichelostemma congestum Lowell Ahart 2012-5-12 18029 Butte On the west side of South Rim Trail, about 1/2 mile southwest of the old homestead, about 5/8 mile west of Highway 32, south part of Upper Bidwell Park, about 8-1/2 miles (air) northeast of Chico 237 Comment
  CHSC117596  Dichelostemma multiflorum L. P. Janeway 2016-6-2 12108 Butte Northern High Sierra Nevada. Plumas National Forest; Field Ridge Meadow; on the ridge between South Fork Feather River and Sucker Run; 1.5 air-km east-northeast of Ponderosa Reservoir. 872 Comment
  CHSC30734  Dichelostemma multiflorum M. S. Taylor 1980-5-27 2727 Butte N side of Oroville-Quincy Hwy, ca 2 mi s of Lake Madrone. 609 Comment
  CHSC3815  Dichelostemma multiflorum L. E. Dunkel 1965-4-15 21 Butte Ca. 200 yards sw of Chico Rod and Gun Club building and ca. 600 yards nw of Municipal Golf Course building, Chico. 33 Comment
  CAS-BOT-BC501080  Dichelostemma multiflorum Carl B. Wolf 1937-5-14 8664 Butte 2 1/2 miles SE of Orovill eon road to Wyandotte, Sierra Nevada Foothills 91 Comment
  SEINET10472708  Dichelostemma multiflorum Mary Susan Taylor 1980-5-27 Taylor 2727 Butte N side of Oroville-Quincy Hwy, ca. 2 mi S of Lake Madrone. 610 Comment
  SEINET10472709  Dichelostemma multiflorum Mary Susan Taylor 1980-4-27 Taylor 2573 Butte T22N R2E sc sec 25. On N side of Humbug Rd, ca. 0.5 mi upstream from Honey Run Covered Bridge, ca. 7 mi E of Chico; Foothill Woodland. With J.D. Jokerst. 122 Comment
  SEINET12053817  Dichelostemma multiflorum Unknown 1936-1 13338 Butte Mud Creek near Chico Comment
  CHSC77498  Dichelostemma volubile Anna Pinsky 1997-4-1 8 Butte Chico, Upper Bidwell Park, between Bear and Salmon Hole, 80 ft. above Big Chico Creek. Comment
  SEINET13711412  Digitaria sanguinalis Lowell William Ahart, Lowell William Ahart 1999-1 8154 Butte 12 Air Mi SW of Chico, 2 Mi SE of Ordbend, Sacramento River Comment
  CDA34289  Diospyros lotus L. Ahart 2010-6-12 16804 Butte At the old homestead, about 100 yards south of Ten Mile House Road, about 5/8 mile (air) west of Highway 32, and about 9 miles (air) northeast of Chico. Comment
  CHSC30873  Diplacus angustatus J. D. Jokerst 1979-4-2 1173 Butte Top of North Table Mt., ca 200 m S of Cherokee Rd where it intersects the E edge of section 17, (E edge of Mt). 396 Comment
  CHSC44776  Diplacus angustatus R. Banchero 1980-4-9 102 Butte Along Cherokee Rd ca 1.0 mi N of its jct with Oregon rd, 2.3 mi S of the town Cherokee. 426 Comment
  CHSC116347  Diplacus aurantiacus J. R. Keck Jr. 1978-5-23 PDR 330031 Butte Highway 70, Jarboe Gap. Near Poe Power House. Comment
  CHSC44753  Diplacus douglasii R. Banchero 1980-3-9 59 Butte Ridge above Horseshoe Lake in upper Bidwell Park. 195 Comment
  CHSC44817  Diplacus grandiflorus R. Banchero 1980-4-13 112 Butte Along the bluffs 0.7 mi NW of the Covered Bridge, ca 6.8 mi E of Chico. 304 Comment
  CHSC44824  Diplacus grandiflorus R. Banchero 1980-5-7 145 Butte Near the jct of Bear Ranch Creek and Hwy 70, ca 0.3 mi SW of Arch Rock Tunnel. 609 Comment
  SEINET8370221  Diplacus grandiflorus Unknown 1940-6-5 25677 Butte Route 24; along Feather River, above Oroville 10-12 mi. above. 1829 Comment
  CHSC103691  Diplacus kelloggii Lowell Ahart 2010-5-7 16624 Butte On the west side of a trail, about 100 yards north of south park fence, on a ridge about 1/2 mile west of Highway 32, Upper Bidwell Park, about 4 1/2 miles (air) northeast of Chico. 304 Comment
  CHSC44760  Diplacus kelloggii R. Banchero 1980-6-12 214 Butte Along Hwy 32, 0.3 mi N of its jct with Humbolt Rd, 0.4 mi S of the Butte County line. 1072 Comment
  CAS-BOT-BC153221  Diplacus kelloggii Jean L. Pawek 1956-5-21 53 Butte Alt. 40, Feather River 609 Comment
  CHSC79836  Diplacus torreyi G. F. Hrusa; T. D. Wilfred 1996-7-9 13114 Butte Plumas National Forest. Above Jordan Creek headwaters S of Hwy 162 near Roger's Cow Camp. [Lat./Long. on label is '39 46 N; 121 17 W']. 1300 Comment
  CAS-BOT-BC154175  Diplacus tricolor Lowell Ahart 1979-5-11 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  CAS-BOT-BC154167  Diplacus tricolor Lowell Ahart 1988-4-29 5969 Butte On the Joie Osgood Ranch, about 2 miles north and 2 1/2 miles east of Honcut, about 12 miles south-east of Oroville 76 Comment
  SEINET3450774  Distichlis spicata Lowell Ahart, Josephine Guardino, Steve Green 2003-5-27 10223 Butte Chico, Chico, about 3.5 miles east of Manzanita Avenue, about 100 yards west of the dirt road, west of Diversion Dam on Big Chico Creek, west of Parking area L, Upper Bidwell Park 120 Comment
  JEPS115102  Dittrichia graveolens Lowell Ahart 2008-11-8 15445 Butte Parking area on the west side of the Midway, west of the intersection of Midway and East Park Avenue, Chico 60 Comment
  UCD118778  Dodecatheon alpinum subsp. majus H. F. Copeland 1929-6-10 s.n. Butte Jonesville. 1524 Comment
  CHSC108864  Dodecatheon clevelandii subsp. patulum Lowell Ahart 2012-3-2 17765 Butte Open flat area, on the west side of South Rim Trail, about 40 yards north of Bloody Pin Trail, about 2/4 mile west of Highway 32, about 7 1/2 miles northeast of Chico. 244 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
  CHSC52455  Dodecatheon clevelandii subsp. patulum Gary R. Koses 1979-3-13 5 Butte 6 mi E of Chico on Skyway; between Skyway and Mesa Restaurant. 152 Comment
  UCD118957  Dodecatheon hendersonii R. J. Radzavage 1979-4-18 9 Butte E side of Table Mountain Rd. Approx. 3 mi. s of Cherokee. 320 Comment
  UC1586407  Dopatrium junceum Lowell Ahart, Peter Ahart, and Carl Wick 1991-7-21 6668 Butte Rice Experiment Station, about 1/8 mi S of Butte City Hwy, N of Biggs 30 Comment
  SEINET7072737  Downingia bacigalupii 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
  CHSC55483  Downingia bella L. P. Janeway 1991-5-2 3926 Butte 1 mi east of Palermo-Honcut Hwy and ca 2 1/2 mi north of Honcut. 38 Comment
  HSC86818  Downingia bicornuta Andrew R. Shepard 1981-4-22 14 Butte About 15 mi. N of Chico and 900 ft. W of Singer Creek. 58 Comment
  CHSC42258  Downingia cuspidata John E. Hunter 1986-4-12 50 Butte Vacant lot within City of Chico, ca. 80 m nw of the intersection of East Ave. and Ceanothus. 62 Comment
  CHSC47396  Downingia cuspidata Lowell Ahart 1978-5-2 1701 Butte Growing in shallow water in a vernal pool, near the large parking area on top of Table Mountain, about 7 miles north of Oroville. 426 Comment
  JEPS105996  Downingia cuspidata Lowell Ahart 2004-4-4 10725 Butte Bottom of a vernal pool, about 1/4 mile east of Wilber Road, east of the high hill crossed by Wilber Road, pasture, about 3 miles (air) west of Thermalito 48 Comment
  JEPS103261  Downingia ornatissima var. ornatissima Lowell Ahart 2002-4-14 9486 Butte Area between the Railroad and the Midway Road, 50 yards north of Nelson Dlavo Road, in Nelson. 36 Comment
  SEINET10448471  Draba verna Lowell Ahart 1983-5-7 Ahart 3967 Butte Peter Ahart Ranch, ca. 3 mi ne of Honcut. Foothill Woodland; 50 m. 50 Comment
  JEPS121904  Draperia systyla Lowell Ahart 2014-7-16 19671 Butte About 50 yards east of Skyway, about 1/4 mile north of Stirling City. Comment
  RSA79045  Draperia systyla E. K. Balls, P. C. Everett 1952-10-14 18214 Butte 2.4 mi. s.w. of Butte-Plumas Co. line on Hwy 24 274 Comment
  UC1124235  Draperia systyla P. L. Johannsen 1936-7-28 966 Butte 2.25 mi n junction of Butte Creek and Secret Creek; Paynes Creek Quad. 1280 Comment
  CHSC108716  Drosera rotundifolia B. Castro; L. P. Janeway 2002-7-7 1377 Butte High Cascade Range. Soggy sedge-dominated meadow ... Field redacted by CHSC, contact the data manager for more information 170 Comment
  CHSC33962  Drosera rotundifolia M. S. Taylor; Lowell Ahart 1981-8-16 4202 Butte Jones Meadow, ca. 3 mi s of Philbrook Reservoir, c ... Field redacted by CHSC, contact the data manager for more information 1828 Comment
  UCD170791  Drosera rotundifolia Barry Rice 2016-6-30 BR- 160603 Butte Chico Meadows. 1280 Comment
  CHSC116222  Drymocallis glandulosa var. glandulosa Lowell Ahart 2015-6-16 20238 Butte On the west side of the paved road, about 4 miles (by road) northwest of Fall River Bridge, about 5 1/2 miles (air) northwest of Camp 18, about 9 miles (air) northeast of Feather Falls. 1406 Comment
  UC114407  Drymocallis glandulosa var. glandulosa Mrs. R. M. Austin July 1896 Butte Colby Comment
  CHSC42012  Dryopteris arguta Lowell Ahart 1975-3-7 705 Butte About 1 mile west of the Forbestown Reservoir, north-east of Forbestown. 426 Comment
  RSA739621  Dryopteris arguta L. P. Janeway 2008-6-22 9420 Butte Cascade Range Foothills, Canyon drainage on E side of Dark Canyon raod 90 miles N of the gate to the boat ramp into Lake Oroville 396 Comment
  SEINET3449614  Dryopteris arguta Unknown 2003-6-30 10326 Butte Forbestown, Forbestown, about 2 miles air northwest, south side of Ponderosa Way, about 2 miles by road southwest of the Ponderosa Dam 490 Comment
Read comments
Sep 19 2014
  SEINET10470595  Dryopteris arguta Lowell Ahart, Peter Ahart 1983-6-30 Ahart 4171 Butte T21N R4E ne sec 11. Dark Canyon, along old Hwy 40, ca. 4 mi s of Jarbo Gap, ne of Oroville. Foothill Woodland; 350 m. 350 Comment
  CHSC3880  Duchesnea indica Gary Dutton 1966-3-23 141 Butte North of Science Bld. along Chico Creek. CSC. Comment
  CAS-BOT-BC428074  Dudleya cymosa subsp. cymosa Herbert Copeland 1920-5-1 s.n. Butte Jonesville Comment
  CHSC28617  Dysphania ambrosioides M. S. Taylor 1979-10-5 2226 Butte SE side of Paradise Lake, ca. 1/2 mi n of Coutelenc Rd, ca. 5 mi n of Magalia. 731 Comment
  CHSC42107  Dysphania ambrosioides Lowell Ahart 1986-11-9 5460 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
  RSA29944  Echinochloa crus-galli I. L. Wiggins 1928-9-9 3338 Butte Sandy Gulch Creek, 3 miles west of Chico Comment
  UCD137954  Echinodorus berteroi Herbert L. Mason; Verne Grant 1946-9-4 13107 Butte Butte Sink. 833 Canal, West Gridley Road. Comment
  HSC104030  Eclipta prostrata L. Ahart 2011-10-29 17718 Butte About 1 mi. NW of Biggs, ~ 500 yds. W of Riceton Highway, on the south side of Biggs Princeton Rd. 27 Comment
  CHSC94489  Elaeagnus angustifolia Lowell Ahart; Mike G. Womack 2006-8-29 13239 Butte About 20 yards east of a large canal, about 100 yards north of the Headquarters, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area). 20 Comment
  CHSC115337  Elatine Lowell Ahart 2015-4-24 20067 Butte Normal size plants, on damp bare soil, bottom of a large duck field. 19 Comment
  JEPS122152  Elatine Lowell Ahart 2014-4-30 19421 Butte About 50 yards south of the Lower Honcut Road, about 50 yards west of the Railroad, about 1 3/4 miles (air) southeast of Honcut. Comment
  JEPS120760  Elatine ambigua Lowell Ahart 2013-9-20 19061 Butte About 100 yards west of the railroad, about 400 yards south of the Rice Experiment Station buildings, about 2 miles SE of Richvale. Comment
  UC1609415  Elatine chilensis Lowell Ahart 1993-5-17 6954 Butte 1 1/2 mi n and 3 mi e Honcut (w side of Dunstone Rd, about 12 mi se of Oroville) 60 Comment
  CHSC45276  Elatine heterandra Vernon Oswald 1988-4-5 3269 Butte Harter's Cherokee Ranch located on the w side of Hwy 99 between Hwy 149 and Dry Creek. 45 Comment
  CHSC82221  Elatine heterandra Lowell Ahart 2002-4-15 9497 Butte On the bottom and sides of ponds and ditches, east of Parking Lot 10, Gray Lodge State Wildlife Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  CHSC74724  Eleocharis B. Castro; L. Gehrung 1998-7-2 797 Butte Ca 6 air mi NW of Brush Creek, ca 1 mi SE of Hungry Hunt Peak, ca 50 ft N of USFS Rd 23N28 as it loops around a drainage. 1021 Comment
  CHSC28856  Eleocharis acicularis J. D. Jokerst; T. B. Devine, D. Greenstein 1979-5-2 458 Butte Ca. 1.0 mi N of jct of Cherokee Rd and E edge of North Table Mt. 381 Comment
  UCD49581  Eleocharis atropurpurea J. M. Tucker 1953-8-28 2681 Butte In rice plots; Biggs Rice Experiment Station, Butte County, California. Comment
  CAS-BOT-BC113461  Eleocharis bella Herbert Faulkner Copeland 1920-8-20 212 Butte Butte Creek Meadow Comment
  CAS-BOT-BC113490  Eleocharis bella E. B. Copeland 1929-7-28 344 a Butte Jonesville. 1500 Comment
  CHSC78183  Eleocharis bolanderi Lowell Ahart 2000-5-30 8410 Butte Near seeps, about 1/4 mile northeast of Kunkle Reservoir, east of the Pentz Magalia Road, about 2 miles south of Paradise. 548 Comment
  CHSC84012  Eleocharis engelmannii Lowell Ahart 2003-6-23 10302 Butte In a rice field, Peter Ahart Ranch, about 300 yards east of Palermo Honcut Highway, about 2 1/8 miles north of Honcut, about 12 miles south of Oroville. 30 Comment
  SEINET8795265 Image available Eleocharis engelmannii J. M. Tucker 1953-8-28 2677 Butte Biggs Rice Experiment Station Comment
  CHSC77999  Eleocharis macrostachya Lowell Ahart 2000-5-13 8339 Butte On the bottom of a small wash, south 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
  JEPS98264  Eleocharis macrostachya Lowell Ahart 2000-10-2 8702 Butte 2 mi SE of Ordbend (near the river and S 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
  JEPS98355  Eleocharis macrostachya Lowell Ahart 2000-7-7 8556 Butte 5 air miles NE of Feather Falls (just W of the bridge across Fall River, N side of Fall River, 3 mi N of Lumpkin Ridge Road) 1036 Comment
  CAS-BOT-BC112788  Eleocharis macrostachya Forman Taylor McLean 1921-9-26 s.n. Butte Weed in rice field, Nelson Comment
  CDA2610  Eleocharis pachycarpa L. Ahart 2000-8-3 8676 Butte Southeast of a large pond, about 100 yards south of the Feather River, west of the break in the levee, about 1/2 mile (air) west of Pacific Heights Road, Oroville Wildlife Area, about 3 1/3 miles (air) southwest of Oroville. Comment
  CHSC97340  Eleocharis pachycarpa L. P. Janeway 2007-8-6 9148 Butte Northern High Sierra Nevada. Plumas National Forest; Hughes Place, at head of eastern side drainage of Chino Creek and near head of Jack Creek, at break between Chino Ridge and Swayne Hill; 3.5 km north of mouth of French Creek at North Fork Feather River arm of Lake Oroville. At an old abandoned farm or small lumber mill pond in an opening in mixed conifer forest. Carpeting the floor of the pond where water level has dropped, ground still saturated but not standing water. 776 Comment
  SEINET10938682  Eleocharis pachycarpa Lowell Ahart 1985-8-11 Ahart 5161 Butte Peter Ahart Ranch about 1 mile north and 3 miles east of Honcut, about 12 miles south of Oroville. Comment
  RSA754815  Eleocharis palustris L. Ahart 2009-6-30 15979 Butte Along a small flowing stream about 55 yards SE of the gate, about 45 yards E of Ten Mile House Road, Upper Bidwell Park, about 3/4 air miles W of Highway 32, about 10 miles NE of Chico. 270 Comment
  SEINET10466896  Eleocharis palustris Mary Susan Taylor 1982-4-28 Taylor 4368 Butte T17N R1E sw/se sec 11. Pennington quad. Graylodge Wildlife Refuge, near parking lot 1, ca. 1/2 mi ne of HQ, ca. 12 mi sw of Gridley. 65 ft. 20 Comment
  SEINET10466927  Eleocharis palustris Lawrence P. Janeway 1991-6-7 Janeway 3992 Butte Honcut quad T18N, R4E, SW 1/4 of sec 33, elev.100 feet. 30 Comment
  SEINET13711167  Eleocharis parishii Lowell William Ahart, Lowell William Ahart 2000-1 8409 Butte 2 Mi. S of Paradise (T22N, R4E, sec 31, NE 1/4) 1800 Ft. 549 Comment
  CHSC68449  Eleocharis suksdorfiana L. P. Janeway; R. A. Schlising, B. Castro, Pauleen Broyles 1987-7-19 2499 Butte Coon Hollow, 1.0 mi southeast of the Humbug Summit Road. Meadows on north side of the creek. 1661 Comment
  JEPS110325  Eleocharis suksdorfiana Lowell Ahart July 25, 2006 2006 13059 Butte About 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. Comment
  SEINET7587178 Image available Eleocharis suksdorfiana Lowell Ahart 2000-7-5 8552 Butte About 100 yards west of the Skyway, about 1 mile south of Inskip, about 4 1/2 miles north of Stirling City. Comment
  CHSC60870  Elymus caput-medusae Vernon H. Oswald; Lowell Ahart 1993-6-22 5559 Butte Gravel pit in Long Ravine W of Stirling City, where Hendricks Canal tunnel dumps into the creek. 975 Comment
  CHSC98334  Elymus caput-medusae L. P. Janeway; B. Castro 2007-5-19 8979 Butte Cascade Range Foothills. Bottom of un-named drainage on southesast side of Neal Road, 2.9 air km northeast of Hwy 99, approximately under the high power lines. On the lowest terrace above the dry dreek; dry hard clay soil, Tuscan Mudflow outcrops (volcanic) above. 91 Comment
  CHSC43132  Elymus elymoides subsp. elymoides Robert Banchero 1981-7-18 605 Butte Ca 0.3 mi e of jct Jonesville Rd and Scotts-John Rd. Roadside. 1749 Comment
  CHSC46231  Elymus glaucus Pauleen Broyles 1987-6-26 1070 Butte Ca 1.5 air miles n.e. of Inskip. On Fish Creek, ca 90 m. above road-crossing bridge. 1425 Comment
  UCSB63839  Elymus glaucus Ahart, Lowell 1997-8-1 Butte T25N, R5E, Section 33; Little Kimshew Creek, in Snow Meadow; about 1/4 mile east of Table Mountain; about 8 miles (air) northeast of Stirling City 1524 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
  CHSC49577  Elymus multisetus Vernon Oswald 1987-6-2 2944 Butte Butte-Yuba County line about 3 mi ne of Forbestown, on the se side of Forbestown Reservoir Rd. 883 Comment
  UCD62438  Elymus multisetus A. A. Beetle 1941-6-27 2740 Butte 20 miles northeast of Chico. Comment
  UCD62442  Elymus multisetus John Thomas Howell 1962-6-15 37528 Butte Magalia. 731 Comment
  CHSC117316  Elymus ponticus L. P. Janeway 2016-6-2 12103 Butte Northern High Sierra Nevada. Plumas National Forest; Fileds Ridge Meadow; on the ridge between South Fork Feather River and Sucker Run; 1.5 air-km east-northeast of Ponderosa Reservoir. 872 Comment
  SEINET12192833  Epilobium adenocaulon M. S. Taylor 1975-1 954 Butte ca 1 mi S of Paradise, E side of Kunkle Reservoir, ca 500 yds E of Pentz-Magalia Hwy 610 Comment
  CHSC42760  Epilobium canum subsp. latifolium Lowell Ahart 1987-8-3 5851 Butte Near the bridge across the North Fork of the Feather River, about 1/4 mile north of the Poe Power House, about 2 miles south-east of Jarbo Gap. 289 Comment
  CHSC70333  Epilobium ciliatum subsp. ciliatum R. A. Schlising; P. Broyles 1988-7-3 4562 Butte SE of Stirling City, past '5 Corners' at a small stream. Comment
  JEPS120600  Epilobium ciliatum subsp. ciliatum Lowell Ahart 2013-11-17 19265 Butte McCabe Creek, below the high water line of Lake Oroville, about 5/8 mile southwest of the enterprise Bridge across Lake Oroville. 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
  JEPS117420  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2010-9-28 17248 Butte On damp rocky soil, along west side of Big Kimshew Creek, about 100 yards east of the poor dirt road, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrood Reservoir 1886 Comment
  CHSC46147  Epilobium densiflorum Lowell Ahart 1975-6-23 805 Butte Along North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 1/2 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC46575  Epilobium glaberrimum subsp. glaberrimum V. Oswald; L. Ahart 1989-7-12 3856 Butte Road between Inskip and Jones Meadow, at Fish Creek. In a roadside drainage. 1432 Comment
  JEPS87376  Epilobium glaberrimum subsp. glaberrimum Lowell Ahart 1993-7-22 7091 Butte e side of campground rd about 1/4 mi nw bridge across Fall River (about 6 air mi ne of Feather Falls); Fall River 1036 Comment
  CHSC109228  Epilobium minutum Robert Fischer 2012-6-17 1060 Butte Cascade Range 45 minutes east of Chico off the north side of Humboldt Road between Lomo and Butte Meadows. 1380 Comment
  CHSC35152  Epilobium minutum R. A. Schlising 1980-5-23 3598 Butte N of Lake Oroville State Recreation Area, along Pulga Road, 0.6 mi n of its junction with Big Bend Road. Comment
  SEINET10841085  Epilobium minutum Lowell Ahart 1984-6-8 Ahart 4674 Butte Along the dirt road near the water tower, above the generator, ca. 1 mi E of Ponderosa Dam, ca. 2 mi N of Forbestown; Yellow Pine Forest; 475 m. 475 Comment
  CHSC29658  Epilobium torreyi J. D. Jokerst 1980-5-28 794 Butte Top of North Table Mt., S of Cherokee Rd. In vernal pools. 403 Comment
  CHSC46643  Epilobium torreyi Lowell Ahart 1989-7-4 6362 Butte South of Oregon Gulch Road, about 1/4 mile north-west of the Cementery, about 1 1/4 miles west of Rocky Point, about 10 miles east and 3 miles north of Oroville. 335 Comment
  CHSC90982  Epilobium torreyi Lowell Ahart 2005-5-11 11795 Butte Swales between vernal pools, south part of North Table Mountain, about 200 yards northwest of the poor dirt road off of Cherokee Road, about 200 yards south of the rim into Beatson Hollow, about 7 miles (air) north of Oroville. 358 Comment
  JEPS119896  Epilobium torreyi Lowell Ahart 2012-6-5 18157 Butte On the south side of Beatson Hollow, about 3/4 mile northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 6 miles (air) north of Oroville. Comment
  JEPS38237  Epilobium torreyi W. L. Jepson 1934-5-4 16613 Butte 2 1/2 mi e Cana Comment
  RSA795698  Epilobium torreyi L. Ahart 2012-6-5 18157 Butte Along the poor dirt road, on the south side of Beatson Hollow, about 0.75 miles northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 6 air miles north of Oroville. 299 Comment
  SEINET7073008 Image available Epilobium torreyi 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
  CAS-BOT-BC57992  Equisetum arvense John Thomas Howell 1961-9-22 36717 Butte Bank of Feather River, Oroville. 53 Comment
  CHSC25287  Equisetum arvense M. S. Taylor 1977-7-15 1423 Butte Along w branch of the Feather River, ca 1 mi e of the Skyway, ca. 1 mi n of Magalia. 677 Comment
  CHSC57331  Equisetum hyemale subsp. affine Michelle T. Wagner 1990-4-19 17 Butte 3 mi e of Butte Meadows, 25 ft sw of creek. 762 Comment
  RSA331946  Equisetum hyemale var. affine Dave Kelly, Walter Wisura 1985-8-1 4089 Butte 8.1 mi NE of Lomo (Hwy 32) along Humboldt Road to Jonesville. Comment
  CAS-BOT-BC33516  Equisetum laevigatum Edwin Bingham Copeland 1930-6-24 403 Butte Jonesville 1500 Comment
  CHSC63793  Equisetum laevigatum Gerald A. Winter 1989-4-15 16 Butte Ca. 1 yd from n side of Big Chico Creek, ca. 100 yds e of diversion dam but before salmon hole. 60 Comment
  CHSC99659  Equisetum laevigatum H. Koeth 2007-5-5 Butte Moist seep in Butte Meadows on a slope. UTM 10 628108E 4440095N. 1326 Comment
  CHSC42768  Eragrostis cilianensis Lowell Ahart 1987-8-3 5845 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
  CHSC75982  Eragrostis cilianensis Lowell Ahart; Vernon H. Oswald 1999-8-13 8150 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
  SD122514  Eragrostis cilianensis Lowell Ahart 1984-10-5 4813 Butte Peter Ahart Ranch, circa 1.5 miles North and 1.7 miles East of Honcut, circa 12 miles South of Oroville. 49 Comment
  CHSC97685  Eragrostis hypnoides Lowell Ahart 2007-11-3 14559 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
  SEINET10831621  Eragrostis mexicana subsp. virescens John Thomas Howell 1959-9-20 Howell 34675 Butte Lower foothills, eastern outskirts of Oroville. 61 Comment
  CDA34154  Eragrostis pectinacea L. Ahart 2009-8-13 16278 Butte Chico: about 100 yards east of the diversion structure that controls Mud Creek diversion and Lindo Channel, northeast of Hooker Oak, Upper Bidwell Park. Comment
  HSC101846  Eragrostis pectinacea J. P. Smith, J. O. Sawyer 2007-9-2 12417 Butte Junction of Central House Rd. and State Rte. 1919 265 Comment
  CAS-BOT-BC284082  Eragrostis pectinacea var. pectinacea Lowell Ahart 1986-11-7 5428 Butte East of the Feather River, north of the Oroville Gridley Highway about 3 miles east of Gridley 28 Comment
  CHSC112736  Eragrostis pectinacea var. pectinacea Lowell Ahart 2013-10-12 19105 Butte On the east side of Palermo Honcut Highway, about 20 yards south of Palermo Road, Palermo. 51 Comment
  UC1562287  Eragrostis pilosa var. pilosa Lowell Ahart 1990-8-15 6585 Butte about 1/2 mi sw Enterprise Bridge across Lake Oroville (across Lake Oroville, along McCabe Creek); below high water line Lake Oroville 228 Comment
  POM57253  Ericameria linearifolia A. A. Heller, H. E. Brown 1902-5-16 5558 Butte Marysville Buttes (rocky slope of East Butte) Comment
  JEPS120946  Erigeron annuus Lowell Ahart 2013-4-20 18554 Butte West side of Wilson Creek, SW of the dredge pond, about 1/4 mile SW of the barn, about 1/4 mile W of Honcut Cemetery, about 3 air miles NE of Honcut. Comment
  CHSC95137  Erigeron bonariensis Lowell Ahart 2006-11-12 13540 Butte Unfarmed rice field, Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 30 Comment
  CHSC116148  Erigeron canadensis Lowell Ahart 2015-11-7 20614 Butte Strand of Lake Oroville, on the east side of the old highway Alternate 40, about 1/8 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. 240 Comment
  CHSC76400  Erigeron canadensis Lowell Ahart; Vernon H. Oswald 1999-10-3 8290 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
  POM55488  Erigeron divergens A. A. Heller, H. E. Brown 1902-5-6 s.n. Butte Berry Canyon (Near Clear Creek) Comment
  UC1594581  Erigeron foliosus var. hartwegii Lowell Ahart 1992-5-9 6756 Butte along gulch about 1.25 mi w Oroville Dam; Lake Oroville Recreation Area, Oregon Gulch 91 Comment
  UC1564804  Erigeron glacialis var. glacialis V. Oswald and L. Ahart 1989-7-12 3844 Butte 2.3 (air) mi nne Bald Mtn. Lookout (on road between lookout and Jones Meadow) 1828 Comment
  CHSC11840  Erigeron inornatus var. calidipetris E. B. Copeland 1930-8-6 490 Butte Jonesville. 1550 Comment
  CDA13237  Erigeron inornatus var. inornatus G. F. Hrusa, T. D. Wilfred 1996-7-8 13084 Butte Plumas National Forest; Old Railroad Grade Rd. nr. Paradise Lake Dam, approx. 3 m. N of Magalia. Comment
  POM193098  Erigeron lassenianus E. B. Copeland 1929-7-17 489 Butte Above Jonesville 2000 Comment
  CAS-BOT-BC295774  Erigeron petrophilus var. sierrensis John Thomas Howell 1959-9-26 s.n. Butte At Pulga Bridge, Feather River Canyon Comment
  CHSC5964  Eriobotrya japonica M. MacArthur 1968-6-18 208 Butte E side of Big Chico Creek, just S of bridge near PSA bld., Chico State College campus. 60 Comment
  SEINET5330462  Eriogonum luteolum J. T. Howell 1959-9-20 34615 Butte along Feather River near Oroville 46 Comment
  CDA13260  Eriogonum luteolum var. luteolum G. F. Hrusa, T. D. Wilfred 1996-7-8 13104 Butte Sierra Nevada; Corner of Skyway Rd. and Rd. to Paradise Lake, at N boundary of Magalia. Comment
  CHSC20968  Eriogonum luteolum var. luteolum M. S. Taylor 1975-9-12 921 Butte Abundant along railroad tracks, ca. 1/2 mi n of Magalia. 609 Comment
  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
  CHSC58940  Eriogonum spergulinum var. reddingianum Lowell Ahart 1992-7-29 6876 Butte About 1 miles north-east of the Carr Mine, about 3/4 mile north-west of Lotts Lake. 1798 Comment
  JEPS94981  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-9-6 7893 Butte about 2 mi ne of Concow Reservoir (on w side of Concow Road); w side of Concow Road 701 Comment
  UC767884  Eriogonum umbellatum var. ahartii R. F. Hoover 1938-8-2 3720 Butte Magalia Comment
  UC1594723  Eriogonum umbellatum var. nevadense Lowell Ahart 1992-7-29 6868 Butte about 1/2 mi nw Lotts Lake (about 1 mi e of the Carr Mine) 1828 Comment
  CAS-BOT-BC265212  Eriogonum umbellatum var. speciosum John Thomas Howell 1951-8-19 28160 Butte 2 miles west of Pulga, Sierra Nevada 365 Comment
  SEINET11931591  Eriogonum ursinum M. S. Taylor, Jokerst, J. D. 1980-1 2145 Butte Humboldt Peak, at the summit 2155 Comment
  CDA22699  Eriogonum vimineum L. Ahart 2004-7-11 11224 Butte On the southeast edge of Paradise Lake, about 3/4 mile northeast of the picnic area, about 1 mile northeast of Paradise Dam, about 4 miles (air) southwest of Stirling City. Comment
  UCD101524  Eriogonum vimineum John Thomas Howell 1959-9-20 34615 Butte along Feather River near Oroville. 45 Comment
  CHSC33787  Eriophyllum lanatum var. croceum M. S. Taylor; L. Hanson 1981-4-10 3520 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
  CHSC37768  Eriophyllum lanatum var. croceum M. S. Taylor 1981-5-21 3760 Butte S side of Lake Concow, ca. 5 mi e of Paradise. 640 Comment
  UC171430  Eriophyllum lanatum var. croceum A. A. Heller 1913-6-7 10806 Butte near Stirling 1074 Comment
  CAS-BOT-BC308160  Eriophyllum lanatum var. grandiflorum John Thomas Howell 1955-6-14 30465 Butte Magalia, Sierra Nevada 731 Comment
  CHSC33152  Eriophyllum lanatum var. grandiflorum L. E. Delight 1973-5-1 26 Butte Ca. 300 yds e from Centennial Ave, ca. 1 mi e of intersection of Centennial Ave and Manzanita Ave, Chico. 91 Comment
  CHSC56751  Eriophyllum lanatum var. grandiflorum J. D. Jokerst 1980-4-21 Butte Junction of Pentz-Magalia Hwy and Pentz Road. Comment
  UC896355  Eriophyllum lanatum var. grandiflorum A. A. Heller 1914-6-22 11484 Butte edge of a n slope at Little Summit Comment
  RSA92670  Eriophyllum lanatum var. grandiflorum F. W. Peirson 1926-6-21 6766 Butte About 10 miles east of Chico on Humboldt Road Comment
  CHSC19933  Erodium brachycarpum M. S. Taylor 1975-2-16 374 Butte Abundant ca. 1/4 mi w of Pentz-Magalia Hwy, ca. 5 mi s of Paradise, in vicinity of Lime Saddle Reservoir. Comment
  CHSC31154  Erodium brachycarpum M. S. Taylor 1980-3-1 2331 Butte West end of Dump, on n side of Neal Rd, ca. 1 mi e of Hwy 99, ca. 7 mi s of Chico. 76 Comment
  JEPS94666  Erodium moschatum Lowell Ahart 1998-6-9 8002 Butte about 7 air mi n Oroville (about 5/8 mi nw of the lone oak tree, nw of the cow chute along Cherokee Road); North Table Mountain 396 Comment
  SEINET10903101  Erodium obtusiplicatum Mary Susan Taylor 1973-1 Taylor 53 Butte Upper Bidwell Park, Chico. Associates: Stipa pulchra, Lasthenia chrysostoma, Layia fremontii. 61 Comment
  CHSC37504  Eryngium castrense J. D. Jokerst 1983-1-17 1676 Butte Top of North Table Mt. Ca 1/2 mile north of Cherokee Rd at the east edge of mesa. 381 Comment
  CAS-BOT-BC40746  Erysimum capitatum A. A. Heller 1915-4-12 11811 Butte Near Cohasset. Comment
  CHSC33186  Erysimum capitatum var. capitatum R. E. Preston 1981-6-2 78 Butte Rocky Ridge, ca. 3.2 km ne of Lake Concow, ca. 32 km n of Oroville. 1025 Comment
  CHSC60968  Erysimum capitatum var. capitatum Lowell Ahart 1993-7-6 7058 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC94047  Erysimum capitatum var. capitatum R. D. Fischer 2005-4-30 719 Butte Sierra Nevada foothills, adjacent Hwy. 32, below Forest Ranch in the Big Chico Creek Ecological Reserve on Lookout Trail. Plant collected off brushy north facing slope with oak overstory. 518 Comment
  CHSC44768  Erythranthe bicolor R. Banchero 1980-6-17 245 Butte Along the Skyway 1.1 mi Ne of its jct with Coutolenc Rd, 2.4 mi W of Stirling City. 865 Comment
  CHSC8620  Erythranthe bicolor L. V. Ritter 1969-5-20 320 Butte 1 mi. w of Butte Meadows e side of Butte Meadows Rd. 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-BC153856  Erythranthe glaucescens Dr. E. B. Copeland 1903-5-15 3177 Butte Chico Comment
  CAS-BOT-BC153871  Erythranthe glaucescens John Thomas Howell 1951-8-19 28155 Butte 2 miles west of Pulga 365 Comment
  CHSC110631  Erythranthe glaucescens Christopher T. Ivey; Jenn Coughlan 2013-5-17 383 Butte Centerville Rd. about 1 km N of Honey Run bridge. Roadside ditch on W side of road. 115 Comment
  CHSC44682  Erythranthe glaucescens R. Banchero 1980-4-11 103 Butte Along Coutolenc Rd 0.3 mi N of its jct with the Skyway, near the river. 487 Comment
  CHSC45718  Erythranthe glaucescens M. S. Taylor 1974-4-30 193 Butte The Horse Trough on side of Cohasset Rd., ca. 6 mi n of Chico Municiple Airport. Comment
  CHSC90149  Erythranthe glaucescens Lisa J. Newsum 1984-4-19 17 Butte Bidwell Heights Road 3/4 mi from junction with Hwy 32, east of Chico. 441 Comment
  SEINET8391710  Erythranthe glaucescens Sean Marquis 1998-4-26 3 Butte 1/4 re mile w of Richardson Springs, next to road. 183 Comment
  CHSC44669  Erythranthe guttata R. Banchero 1980-6-6 202 Butte Along Bald Rock Rd 1.7 mi S of the N jct with Hwy 162, 7.6 mi NE of the S jct with Hwy 162, ca 1/4 mi E of the Rd. 963 Comment
  CHSC44743  Erythranthe guttata R. Banchero 1980-6-23 262 Butte Along Eagle Gulch Rd 1.8 mi N of its jct with Laporte Rd, 1.6 mi SW of Sly Reservior. 1066 Comment
  CHSC84713  Erythranthe inconspicua L. P. Janeway; John Hunt, Adam Henderson 2003-6-17 7848 Butte Northern High Sierra Nevada. Along southeast edge of North Fork Feather River arm of Lake Oroville, between mouth of Berry Creek and mouth of French Creek. 280 Comment
  CHSC90170  Erythranthe microphylla Jose Romero 1983-4-20 2 Butte Site located on the Oroville Wildlife Area. Junction of Larkin and Timothy Rds., 4 mi. s.w. of Oroville. 45 Comment
  CHSC44673  Erythranthe nasuta R. Banchero 1980-4-26 124 Butte Along the Cohasset Hwy 2.3 mi NE of its jct with Keefer Rd, 3.9 mi SW of the town of Cohasset. 182 Comment
  SEINET10469664  Erythronium cliftonii Mary Susan Taylor, L. Hanson 1981-4-10 Taylor 3523 Butte T22N R4E ne sec 2 to nw sec 1, Pulga SW quad. N-facing grassy serpentine slope, 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. Elevation 2700 to 2900 ft. 731 Comment
  SEINET10938447  Erythronium cliftonii Mary Susan Taylor 1979-3-19 Taylor 1925 Butte T23N R5E Pulga quad. In the vicinity of Pulga bridge over Feather River on Hwy 70, ca. 25 mi NE of Oroville. 488 Comment
  SEINET3992253  Erythronium multiscapideum Rimo Bacigalupi, G. T. Robbins, F. Chisaki 1956-4-19 5601 Butte 1/2 mile north of Magalia 732 Comment
  CAS-BOT-BC402640  Eschscholzia caespitosa A. A. Heller 1938-4-23 15052 Butte Just west of the summit between the West Branch and the North Fork of the Feather River on Highway #24 Comment
  JEPS115827  Eschscholzia californica subsp. californica Lowell Ahart 2009-4-26 15622 Butte In a small open meadow, about 150 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 286 Comment
  CAS-BOT-BC419498  Eschscholzia lobbii H. E. Brown 1897-4-15 149 Butte Near Clear Creek 53 Comment
  CHSC4176  Eschscholzia lobbii Kathy Sommarstrom 1967-3-30 9 Butte In Bidwell Park, 1.5 mi east of Golf course, 25 yds to the left of road. 76 Comment
  SJSU5797  Eschscholzia lobbii N. Mudron 1971-4-21 Butte Bidwell Park Rd near Chico Comment
  UC204950  Eschscholzia lobbii A. A. Heller 1914-3-7 11188 Butte 8 mi n Oroville Comment
  CHSC101811  Eucalyptus camaldulensis Lowell Ahart 2009-6-12 15843 Butte On the east side of the deer pen, about 50 yards north of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 130 yards east of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  CDA13267  Euonymus occidentalis var. occidentalis G. F. Hrusa, T. D. Wilfred 1996-7-9 13115 Butte Plumas National Forest; Jordan Creek at old Picnic Area above falls before confluence with Marble Creek. Comment
  UCD142639  Euphorbia nutans Bioletti Wyandotte 1927-11-11 852 Butte Butte County. Comment
  CAS-BOT-BC202424  Euphorbia ocellata A. A. Heller 1913-9-24 11143 Butte Table Mountain Olive Ranch 8 miles north of Oroville 121 Comment
  CAS-BOT-BC202428  Euphorbia ocellata John Thomas Howell 1962-6-16 37586 Butte 3.5 mi. n. of Pentz 396 Comment
  CDA38820  Euphorbia peplus L. Ahart 2012-4-17 17877 Butte Area where cobbles were removed for Oroville Dam, about 100 yards south of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) sothwest of Oroville. Comment
  CAS-BOT-BC312200  Eurybia radulina Lowell Ahart 1976-9-21 s.n. Butte 1 mile north of Golden Trout Crossing on cut bank of road that ends at Feather Falls 762 Comment
  CDA42949  Euthamia occidentalis L. Ahart 2012-10-28 18531 Butte On the north side of Big Chico Creek, south of Table 34, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  SEINET10872046  Evax caulescens Mary Susan Taylor 1978-5-7 Taylor 1597 A Butte In Valley Grassland, on E side of Williams Road, ca. 1/4 mi N of Pentz Road, on Butte College Campus, ca. 15 mi S of Chico. 30 Comment
  CHSC20093  Fatsia japonica M. S. Taylor 1975-4-8 450 Butte On ne side of Administration Building, California State University, Chico. 60 Comment
  CHSC5935  Fatsia japonica M. Macarthur 1968-6-12 164 Butte Near NW entrance to Life Science bld., Chico State College. 60 Comment
  CHSC93854  Festuca Lowell Ahart 2006-5-19 12635 Butte Road gutter, on the west side of the dirt road, Bardees Bar Road, south of the small stream, about 1/4 mile southwest of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga. 405 Comment
  CDA14179  Festuca occidentalis G. F. Hrusa 1997-5-29 13807 Butte Sierra Nevada; Slopes on N side of Sucker Run Creek, ~1.5 mi. SSE of Feather Falls townsite. Small colonies of bunching individuals in dry, deep shade of coniferous forest. Perennial Comment
  CHSC39259  Festuca occidentalis Lowell Ahart 1983-6-26 4165 Butte Along the edges of Bean Creek Road, about 1/2 mile south of Little Bald Rock, about 20 miles north-east of Oroville. 1000 Comment
  SEINET10507961  Festuca occidentalis Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4165 Butte T21N R6E ne sec 29. Along sides of Bean Creek Rd, ca. 0.5 mi s of Little Bald Rock, ca. 19 mi ne of Oroville. Yellow Pine Forest; 1000 m. 1000 Comment
  SEINET10508608  Festuca pacifica Mary Susan Taylor 1976-3-30 Taylor 1046 Butte Valley Grassland, ca. 0.5 mi W of Chero kee Rd, ca. 2 mi NE of Oroville, on Table Mt; with Limnanthes douglasii. 373 Comment
  SEINET10553410  Festuca pratensis Lowell Ahart 1988-6-29 Ahart 6104 Butte Meadow Fescue. On dry disturbed soil, along the road to the Andy Smith Ranch, about 100 yards east of Bean Creek Road, about 1 1/2 miles south-east of Little Bald Rock, Uncommon. Yellow Pine Forest. 914 Comment
  CHSC65888  Filago pyramidata var. pyramidata Vernon H. Oswald 1996-4-20 7404 Butte Sacramento Valley. Sacramento River National Wildllife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Pasture in the S paddock of Tract 7, Sanctuary II. 32 Comment
  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
  CHSC107431  Foeniculum vulgare L. P. Janeway 2011-7-7 10504 Butte Sacramento Valley. Oroville, north edge of the levee on the south side of the Feather River, 125 m east of Bedrock Park. 49 Comment
  CHSC42580  Foeniculum vulgare Vernon Oswald 1985-7-5 1883 Butte Hwy 32 nw of Chico at the Mud Creek Diversion Channel. 44 Comment
  CAS-BOT-BC437078  Fragaria virginiana subsp. platypetala A. A. Heller 1915-6-27 12036 Butte Jonesville in the Sierra Nevada 1676 Comment
  CAS-BOT-BC62903  Frangula californica subsp. tomentella Lewis S. Rose 1955-6-14 55097 Butte Magalia. 731 Comment
  SEINET7417508 Image available Frangula purshiana A. A. Heller 1919-1 13157 Butte Feather River near Stirling [City] Comment
  CAS-BOT-BC53776  Frangula rubra A. A. Heller 1913-6-7 10790 Butte Near Stirling 1036 Comment
  CHSC46219  Frangula rubra Pauleen Broyles 1987-5-18 1023 Butte In town of Paradise. Along both sides of bicycle path (old RR bed) in remnant of Yellow Pine Forest. Comment
  JEPS120064  Fraxinus Lowell Ahart, Josephine Guardino 2012-10-12 18480 Butte About 100 yards northeast of the sign Orient Street and E 1st Street, on the south side of Brig Chico Creek, on the east side of the bridge, Annie's Glen, Lower Bidwell Park, Chico. Comment
  CHSC46117  Fraxinus dipetala L. P. Janeway; B. Castro 1989-4-12 3216 Butte Ridge overlooking Little Chico Cr; along the old hwy (hwy 32) near Crown Pt. Dr. 449 Comment
  UCR219101  Fraxinus latifolia George K. Helmkamp, E. A. Helmkamp 2009-9-5 15570 Butte Sacramento Valley, Lower Honcut Road, 0.8 mile east of its junction with CA-70, 2.5 mi. WSW (261 deg. ) of Honcut, 6.6 mi. SE (116 deg. ) of Gridley 27 Comment
  CAS-BOT-BC130429  Fritillaria pluriflora H. E. Brown 1897-4-15 141 Butte Near Clear Creek Comment
  CHSC29246  Fritillaria recurva M. S. Taylor 1980-5-8 2603 Butte Ca. 3 mi n of Forest Ranch, ca. 1 mi e of Hwy 32. 853 Comment
  CAS-BOT-BC508144  Fritillaria recurva C. C., Mrs. Bruce 1897-1-1 2026 Butte Unspecified Comment
  CAS-BOT-BC508148  Fritillaria recurva Flower Show 1929-4-1 s.n. Butte Unspecified Comment
  SEINET10469524  Fritillaria recurva Mary Susan Taylor 1981-4-8 Taylor 3506 Butte T22N R4E north center border sec 12, Pulga SW quad. Serpentine ridge n of logging landing site just w of power lines, 1/2 mi w of Ponderosa Way/Rim Rd, ca. 5 mi n of Jarbo Gap on Hwy 70; n of Oroville. 2900 ft. 884 Comment
  JEPS114198  Fumaria officinalis Elena Alfieri 2008-5-19 Butte Sacramento Valley. Lower Bidwell Park, Chico, within the Arroyo Chico Land Grant. Comment
  CHSC4005  Galium aparine E. P. Parreno 1967-3-30 Butte Upper Bidwell Park ca. 400 yards NE of Chico Municipal Golf Course. Comment
  CHSC54164  Galium aparine Lowell Ahart 1991-4-19 6646 Butte On the west side of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 2 and 3/4 miles east of Honcut, about 12 miles south-east of Oroville. 45 Comment
  RSA127595  Galium aparine Peter H. Raven 1953-5-9 5431 Butte 8 miles from Bangor on Oroville Rd. Comment
  POM196538  Galium bifolium H. F. Copeland 1929-6-12 1212 Butte Jonesville. 1524 Comment
  SEINET10500691  Galium bifolium Mary Susan Taylor 1978-7-18 Taylor 1714 Butte On E side of Humboldt Peak, at Humboldt Summit, on Butte-Tehama County line; Red Fir Forest. 2134 Comment
  CDA13230  Galium bolanderi G. F. Hrusa, T. D. Wilfred 1996-7-8 13077 Butte Plumas National Forest; Old Railroad Grade Rd. immed. above Paradise Lake dam, approx. 3 mi. N of Magalia. Comment
  CHSC11821  Galium bolanderi E. B. Copeland 1930-7-25 474 Butte Jonesville. 1700 Comment
  JEPS52658  Galium bolanderi Lauramay T. Dempster 1964-7-24 4048 Butte road above Jonesville 1658 Comment
  JEPS52685  Galium bolanderi Lauramay T. Dempster 1964-7-24 4044 Butte roadbank 3 mi s Nimshew 487 Comment
  SEINET10968826  Galium bolanderi Mary Susan Taylor 1981-5-5 Taylor 3611 Butte 600 ft. T20N R6E sw sec 2, Forbestown quad. W side of spur rd, ca. 1.5 air mi NW of its jct with Bryant Ravine Rd(21N35Y), ca. 1 air mi N of Feather Falls community. Green grassy woodland with heavy shrub cover, nne-facing slope; 792 Comment
  CHSC104015  Galium murale Lowell Ahart 2010-5-28 16748 Butte Cedar Grove Parking Area in Lower Bidwell Park, Chico. 67 Comment
  SEINET12318326  Galium nuttallii Unknown 1977-1 79 Butte ca 9 km N of Oroville 180 Comment
  UC888981  Galium parisiense Lewis S. Rose 1937-6-10 37360 Butte Hurleton 579 Comment
  CDA6660  Galium parisiense L. Ahart 2000-6-27 8524 Butte North part of Big Bald Rock, area is about 100 yards south and west of the north and east forest line, about 3 miles (air) east of Madrone Lake, about 12 miles (air) northeast of Oroville. Comment
  SEINET10869781  Galium parisiense Mary Susan Taylor 1980-5-31 Taylor 2750 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
  CHSC32845  Galium tricornutum F. Chmiel 1981-4-23 6 Butte Ca. 20 ft off Hwy 99, ca. 6 mi N of Chico. 152 Comment
  UC1564793  Galium trifidum var. pusillum V. Oswald and L. Ahart 1989-6-27 3825 Butte Humbug Rd at Butte Creek House (ca 3.3 air mi se of Jonesville); Butte Creek 1767 Comment
  UC1609077  Galium trifidum var. pusillum Lowell Ahart 1993-6-26 7017 Butte about 1/4 mi w Lost Creek Reservoir (small meadow n of dirt road) 1036 Comment
  CHSC11818  Galium triflorum E. B. Copeland 1930-7-15 472 Butte Jonesville. 1500 Comment
  SBBG29181  Galium triflorum E. B. Copeland 1930-7-15 Butte Jonesville 1500 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-BC303386  Gamochaeta ustulata Lowell Ahart 1987-6-9 5738 Butte On the W side of the N Fork of the Feather River, near the Poe Power House, about 2 miles SE of Jarbo Gap 271 Comment
  CAS-BOT-BC169933  Garrya fremontii E. B. Copeland 1932-7-27 667 Butte Jonesville 502 Comment
  CHSC108860  Garrya fremontii Lowell Ahart 2012-2-22 17755 Butte On the south side of Guardian Trail, about 20 yards west of Ten Mile House Road, about 1/4 mile west of High 32, about 9 miles northeast of Chico. 426 Comment
  CHSC28470  Gastridium phleoides R. A. Schlising 1979-6-5 3441 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
  CHSC56630  Gastridium phleoides T. B. Devine 1980-6-28 717 Butte At junction of Pentz Road and Pentz-Magalia Hwy. Comment
  CHSC6162  Gastridium phleoides E. Parreno 1968-4-15 54 Butte NE of Municipal Golf Course in Upper Bidwell Park on slope of ridge, Chico. Comment
  RSA716153  Gastridium phleoides L. Ahart 2005-7-13 12149 Butte About 20 yards east of the intersection of Forbestown Road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown, about 12 miles (air) east of Oroville. 759 Comment
  UCD66716  Gastridium phleoides C. C. Parry 1887-1 Butte Chico. Comment
  CHSC108757  Gaura L. P. Janeway; B. Castro 2011-6-5 10361 Butte Sacramento Valley. No sections here (Arroyo Chico) Chico; northeast side of Hwy 99 just southeast of Cohasset Road overcrossing. Generally planted areas bordering the roadway. 62 Comment
  JEPS121984  Gayophytum diffusum subsp. parviflorum Lowell Ahart 2014-7-7 19561 Butte About 20 yards east of the Skyway, about one-mile north of Stirling City. Comment
  POM183996  Gayophytum diffusum subsp. parviflorum H. F. Copeland 1932-8-19 s.n. Butte Jonesville, about the Lily Pond 1700 Comment
  UCD103639  Gayophytum diffusum subsp. parviflorum Cameron Blake; Jane Turner 1962-6-18 SK and F 998 Butte Mono Hot Springs. 1981 Comment
  CHSC36814  Gayophytum humile L. Ahart 1982-6-4 3556 Butte 1.5 mi e of Camp 18, ca. 8 mi e of Feather Falls. 1000 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
  CHSC35699  Geranium dissectum J. D. Jokerst 1982-5-1 1555 Butte North Table Mountain. Locally abundant in ephernal seep ca. 200 Met E of Phantom Falls (at the N fork of Coal Cr. canyon). Comment
  CHSC52025  Geranium dissectum Mark Loy 1980-4-8 16 Butte Ca. 5 mi N of Oroville, 7.2 mi N of Table Mt. Rd, ca. 100 yards W of Cherokee Rd. 365 Comment
  CDA34151  Geranium molle L. Ahart 2009-4-3 15530 Butte Chico: East of the Cedar grove Parking Area in Lower Bidwell Park. Comment
  JEPS119546  Geranium molle Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17858 Butte East of the Deer Pen, between Tables 10 & 11, Lower Bidwell Park, Chico. Comment
  CDA25864  Geum macrophyllum T. C. Fuller 1962-7-12 9177 Butte Road to Jonesville, 2 miles east of Butte Meadows. 0 Comment
  CHSC41373  Gilia capitata subsp. mediomontana R. A. Schlising; R. Banchero 1980-7-11 3878 Butte NE part of county near Merrimac; roadsides. 1203 Comment
  UC660001  Gilia capitata subsp. mediomontana Lincoln Constance 1941-5-28 2827 Butte South Branch of the Feather River at Magalia; Sierra Nevada foothills, South Branch Feather River 487 Comment
  POM181675  Gilia tricolor Williams 1927-4-11 s.n. Butte Near Chico Comment
  UC1537502  Gilia tricolor subsp. diffusa Gordon H. True Jr. 1936-3-27 384 Butte near West Butte (canyon on n side of Marysville Buttes); n side Marysville Buttes, near West Butte 76 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
  CHSC3229  Ginkgo biloba Virginia Hagaman 1966-5-5 165 Butte Chico State College Campus. Comment
  CHSC34815  Githopsis diffusa subsp. robusta M. S. Taylor 1981-5-21 3768 Butte S side of Concow Rd, ca. 0.5 mi s of its jct with Ponderosa Way, ca. 20 air mi n of Oroville. 853 Comment
  CAS-BOT-BC266585  Githopsis pulchella A. A. Heller 1914-5-22 11423 Butte Near Richardson Springs Comment
  UC764582  Githopsis pulchella subsp. campestris R. F. Hoover 1937-5-18 2236 Butte 3 mi n Chico Comment
  SEINET10460581  Githopsis pulchella subsp. campestris Hoover 1937-5-18 HOOVER 2236 Butte 3 miles north of Chico Comment
  JEPS122144  Githopsis specularioides Lowell Ahart 2014-5-2 19434 Butte Along the trail north side of Beatson Hollow, about 1 1/2 miles southwest of the Improved Parking Area and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  UCSB40620  Githopsis specularioides Reisentz, Paul 1979-5-13 Butte 1 mile west on Truex rd from Hwy 70 Comment
  CDA2162  Glyceria declinata L. Ahart 2000-5-21 8377 Butte On the east side of Clark Road (Highway 191), about 200 yards south of Dry Creek, about 10 miles (air) northwest of Oroville. Comment
  CHSC78223  Glyceria declinata Lowell Ahart 2000-5-21 8377 Butte Slickens from the Cherokee mine, on the east side of Clark Road (Highway 191), about 200 yards south of Dry Creek, about 10 miles (air) northwest of Oroville. 60 Comment
  JEPS94779  Glyceria declinata Lowell Ahart 1998-6-9 7987 Butte about 7 air mi n Oroville (sw of the lone oak tree, nw of the cow chute along Cherokee Road); North Table Mountain, Cherokee Road 403 Comment
  CHSC34189  Glyceria elata L. Ahart 1981-9-15 3174 Butte On the bottom of a swamp, where the road forks and crosses French Creek, ca. 1 mi w of Sly Creek Reservoir. 1300 Comment
  SEINET10905046  Gnaphalium Mary Susan Taylor 1979-10-13 Taylor 2257 Butte T22N R4E n half sec 17. Foothill Woodland on Jordan Hill Road (Ponderosa Way on some maps), ca. 4.8 mi N of its jct with Concow Road, ca. 2 mi E of Paradise. With Jim Jokerst. 610 Comment
  CAS-BOT-BC302468  Gnaphalium palustre A. A. Heller 1915-5-28 11911 Butte Near Cohasset Comment
  JEPS120604  Gnaphalium palustre Lowell Ahart 2013-11-17 19258 Butte McCabe Creek, below the high water line of Lake Oroville, about 5/8 mile southwest of the enterprise Bridge across Lake Oroville. Comment
  JEPS7404  Gnaphalium palustre Rimo Bacigalupi with Larry R. Heckard 1951-8-7 3476 Butte 0.3 mi w of Jonesville (on roadcut at crossing of Butte Creek, along road to Butte Meadows) 1524 Comment
  CHSC82258  Gratiola ebracteata Lowell Ahart 2002-4-24 9533 Butte Vernal pools and swales, in a field, on the east side of Lone Tree Road, about 1 1/8 miles north of Cox Lane, about 3 miles (air) southwest of Palermo, about 7 miles (air) south of Oroville. 35 Comment
  CAS-BOT-BC305286  Grindelia hirsutula L. P. Janeway 1993-8-7 4507 Butte Plumas National Forest, La Porte Ranger District. Along Road 21N25A at southwestern end of Watson Ridge; ca 2 mi east of Bald Rock Dome 1082 Comment
  CHSC11863  Hackelia californica E. B. Copeland 1930-6-29 449 Butte Jonesville. 1550 Comment
  CHSC35081  Hackelia californica R. A. Schlising; R. Banchero 1980-7-14 3894 Butte 4.2 mi N of Inskip along Skyway (= 0.8 mi N of jct with Bull Hill Road to Butte Meadows). 1511 Comment
  CHSC47986  Hackelia californica Vernon Oswald 1983-7-19 884 Butte Bull Hill Rd. 1.0 mi n of its jct. with the Skyway and Humbug Summit Rd. In a meadow. 1524 Comment
  UC392205  Hackelia nervosa E. B. Copeland 1929-7-17 Butte above Jonesville 2000 Comment
  CAS-BOT-BC282857  Hainardia cylindrica Lowell Ahart 1974-6-3 s.n. Butte Peter Ahart Ranch, Honcut 45 Comment
  CDA3924  Hamamelis vernalis L. P. Janeway, J. Hunt 2003-7-11 7898 Butte Northern High Sierra Nevada; Low in Canyon of North Fork Feather River (Lake Oroville) between Big Bend Mountain and Swayne Hill; 1.8 km north-northwest of the mouth of French Creek. Comment
  UC119829  Hastingsia alba Mrs. R. M. Austin July 1896 799 Butte Colby Comment
  CHSC109657  Hedypnois cretica Lowell Ahart 2012-5-12 18032 Butte On the sides of South Rim Trail, about 1/2 mile southwest of the old homestead, about 5/8 mile west of Highway 32, south part of Upper Bidwell Park, about 8-1/2 miles (air) northeast of Chico. 237 Comment
  CHSC78371  Helenium bigelovii Vernon H. Oswald 2000-7-13 9940 Butte Forest road 25N02 between Jones Meadow and Bald Mountain Lookout. 1731 Comment
  CAS-BOT-BC306542  Helenium bigelovii A. A. Heller 1938-7-20 15284 Butte At the upper end of Snag Lake, 7 miles east of Chaparral [Chapparel] 1524 Comment
  SEINET11830212  Helenium bigelovii Unknown 1966-1 432 Butte 0.67 mi SE of Little Bald Rock on N side of Bean Creek Rd Comment
  CAS-BOT-BC309394  Helenium puberulum G. Earle Kelley 1920-10-31 s.n. Butte Los Verjils Comment
  CAS-BOT-BC309402  Helenium puberulum John Thomas Howell 1959-9-20 34710 Butte Feather River Highway at West Branch bridge Comment
  UC217228  Helianthella californica subsp. nevadensis H. M. Hall 1917-5-13 10300 Butte Honeymoon Grade 396 Comment
  RSA0047072  Helianthella californica var. nevadensis L. P. Janeway 2006-6-25 8700 Butte Along a major dirt road 2.6 km south of Stirling City towards West Branch Feather River crossing. 1006 Comment
  CHSC25336  Helianthus bolanderi M. P. Hayes 1977-8-13 31 Butte Wash on Butte College Campus, along Williams Road. Comment
  CHSC86432  Hemizonella minima Jenny Marr 1994-6-13 87 Butte Located in Northern Sierra Nevada, north of the town of Magalia, on an exposed serpentine outcrop belonging to LNF. Site approx. 0.3 air miles north of Magalia Reservoir. 759 Comment
  UC186058  Hemizonia congesta subsp. luzulifolia A. A. Heller 1913-10-7 11147 Butte 8 mi n Oroville (Table Mountain Olive Ranch) 121 Comment
  RSA770728  Hemizonia fitchii George K. Helmkamp, E. A. Helmkamp 2009-9-5 15585 Butte Lower Honcut Road, 0.9 rd. mi. west of Honcut, 7.8 mi. SE (111 deg ) of Gridley 34 Comment
  SEINET10474721  Hemizonia parryi subsp. rudis Mary Susan Taylor 1982-4-28 Taylor 4345 Butte T17N R1E se/s sec 13. Pennington quad. Graylodge Waterfowl Refuge, n side of Rutherford Rd, 1/8 mi w of Pennington Rd, ca. 12 mi sw of Gridley. 70 ft. 21 Comment
  CAS-BOT-BC388569  Herniaria hirsuta L. P. Janeway 1993-6-3 4367 Butte Plumas National Forest, Oroville Ranger District. South end of Swayne Hill, along the road to Big Bar Mtn (23N28) 731 Comment
  UCD73011  Hesperevax acaulis Ayzik Solomeshch 2003-4-9 s. n. Butte Wurlitzer Reserve, about 10 mi. north from Chico on Hwy 99, west side of the road. Comment
  JEPS115590  Hesperevax acaulis var. robustior Lowell Ahart 2009-4-22 15587 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
  CHSC29045  Hesperevax caulescens R. Schlising 1980-4-14 3562 Butte Richvale vernal pools, 1/4 mi s of junction Hwy 162 to Oroville and Hwy 99, along latter and across from Thermalito Afterbay. Comment
  UC1185274  Hesperevax caulescens H. E. Brown May 1 1897-May 15 1897 209 Butte near Clear Creek Comment
  CHSC44303  Hesperolinon californicum Lowell Ahart 1988-4-29 5962 Butte Near the ditch which was part of the Honcut Flume, on the Joie Osgood Ranch, about 2 miles north and 2 1/1 miles east of Honcut, about 12 miles south-east of Oroville. 76 Comment
  CHSC39668  Hesperolinon micranthum Lowell Ahart 1983-6-21 4094 Butte Found along Bloomer Hill Road, about 1 1/4 miles west of the Oroville Quincy Highway, about 15 miles north-east of Oroville. 450 Comment
  CHSC48602  Hesperolinon micranthum Vernon Oswald 1983-7-6 805 Butte Near Calif. Hwy. 32, 6.3 mi n-e of Forest Ranch. Growing on an old logging road in yellow pine forest. 1036 Comment
  CHSC46544  Heteranthera limosa Lowell Ahart 1974-8-29 619 Butte In a rice field, Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC66687  Heteranthera limosa Vernon H. Oswald; Lowell Ahart 1996-7-22 8084 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Along a drainage in the NW corner of Tract 9.1, Sanctuary I. 30 Comment
  UCD19365  Heteranthera limosa E. Dean; with J. Ditomaso and E. Healy 2001-8-20 856 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
  CHSC31557  Heterocodon rariflorum L. Ahart 1973-5-29 246 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC42134  Heterocodon rariflorum Lowell Ahart 1973-5-29 247 Butte Near a small wash, Peter Ahart Ranch, about 2 miles north and 2 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  SFV11711  Heterocodon rariflorum M. L. Vincent 1968-6-10 841 Butte Sierra Nevada 1/5 mile north of Cresta Power Station, North Fork Feather River. 460 Comment
  CHSC103426  Heteromeles arbutifolia Lowell Ahart 2009-11-19 16561 Butte Southwest side of the pond, about 40 yards southwest of table, about 110 yareds south of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) west of Highway 32, about 10 miles northeast of Chico. 242 Comment
  CHSC115412  Heteromeles arbutifolia M. Rogers 2013-5-14 Butte Oroville, Brad Freeman Tail off Oro Powerhouse Road next to the spillway. 80 Comment
  CHSC45192  Heteromeles arbutifolia Lowell Ahart 1975-6-19 791 Butte Along North Honcut Creek, Peter Ahart Ranch, about 1 1/4 miles north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC43243  Heterotheca grandiflora Lowell Ahart 1987-9-24 5905 Butte Near the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 274 Comment
  CAS-BOT-BC311025  Heterotheca oregona var. compacta M. S. Taylor 1980-9-26 3340 Butte In Lindo Channel, jct of Mangrove & Cohasset, in Chico 45 Comment
  SFV1580  Heuchera micrantha M. L. Vincent 1962-4-18 209 Butte Near Feather River at Hells Town. Comment
  UCD133134  Hieracium albiflorum Robert C. Burness 1970-5-23 62 Butte on around 15* slope, around 6 miles southeast of Stirling City on Ragdump Road. 762 Comment
  CHSC40439  Hirschfeldia incana Lowell Ahart 1985-7-24 5157 Butte At the Generator, at the Forbestown Res., about 4 1/2 miles north-east of Forbestown. 350 Comment
  CHSC111955  Hoita macrostachya Lowell Ahart 2012-6-5 18159 Butte Wet area along the poor dirt road, on the south side 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. 295 Comment
  CHSC43670  Hoita macrostachya Vernon Oswald 1983-6-14 685 Butte Upper Bidwell Park, Chico, near Yahi Trail e of Brown's Hole. 207 Comment
  JEPS120759  Holocarpha virgata Lowell Ahart 2013-9-5 19022 Butte On west side of La Porte Road, about 1/4 mile SW of Dunstone Drive, about 2 1/3 air miles northeast of Huncut Comment
  RSA0112643  Holocarpha virgata subsp. virgata Lowell Ahart 2013-9-5 19022 Butte On the west side of La Porte Road, about 1/4 mile southwest of Dunstone Drive, about 2 1/3 miles (air) northeast of Honcut. 40 Comment
  CAS-BOT-BC311881  Holozonia filipes Lowell Ahart 1981-7-7 2914 Butte Sutter Buttes Area. About 1 mile south of the Oroville Forbestown Road on the Hurleton Swedes Flat Road 600 Comment
  SD149201  Hordeum brachyantherum Lowell Ahart 1981-5-24 2836 Butte Peter Ahart Ranch, ca. 1.5 mi. N and 1/15 mi. E of Honcut, Valley Grassland 49 Comment
  CHSC113947  Hordeum brachyantherum subsp. brachyantherum Lowell Ahart 2014-8-13 19708 Butte 20 yards east of the east edge of a large wet meadow (some bog), about 130 yards east of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC42373  Hordeum marinum subsp. gussoneanum Lowell Ahart 1987-5-6 5563 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
  UCD85770  Hordeum marinum subsp. gussoneanum L. Ahart 1982-4-29 3397 Butte Graylodge Wildlife Refuge. Ca. 3/4 miles W of check-in station. Ca. 12 miles SW of Gridley. 35 Comment
  SEINET11689119  Hordeum marinum subsp. gussoneanum L. Ahart, Taylor, M. S.; Jokerst, J. D. 1982-1 1537 Butte Grey Lodge Waterfowl Management Area, N side of Rutheford Rd, ca 100 m W of Pennington Rd Comment
  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
  POM220121  Horkelia tridentata H. F. Copeland 1928-8-20 453 Butte Jonesville. 1524 Comment
  CHSC43213  Horkelia tridentata subsp. flavescens L. P. Janeway 1987-6-13 2210 Butte Near the top of Flea Mtn. 1295 Comment
  CHSC96790  Horkelia tridentata subsp. tridentata Lowell Ahart 2007-5-22 13904 Butte Around the southeast edge of a large bare granite opening (about an acre in size), northeast of Little Bald Rock, about 300 yards east of Bean Creek Road, about 16 miles (air) northeast of Oroville. 1009 Comment
  CHSC99565  Horkelia tridentata subsp. tridentata L. P. Janeway 2008-5-26 9387 Butte Northern High Sierra Nevada. Saddle at head of Empire Creek, about 1.6 km west of Flea Valley. 1079 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-BC536265  Horkelia tridentata var. tridentata Javier Penalosa 1962-6-18 2470 Butte Near confluence of French and Peavine Creeks 640 Comment
  CHSC65557  Hosackia incana L. P. Janeway 1995-6-20 4804 Butte Watson Ridge; about 1 mi south of Pompys Point. 1188 Comment
  CHSC26852  Hosackia oblongifolia var. oblongifolia M. S. Taylor; M. Hayes 1978-6-24 1640 Butte On Ernies Island in Butte creek, at tis jct with Old Humboldt Rd, ca. 1/2 mi w of Butte Meadows. 1371 Comment
  CHSC885  Hosackia pinnata L. Nelson 1935-5-25 Butte Cohasset. 609 Comment
  CHSC43268  Hydrocotyle umbellata Lowell Ahart 1987-9-4 5880 Butte On the sides of a drying pond, 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
  UC1532351  Hydrocotyle verticillata Vernon Oswald 1986-6-11 2110 Butte just e. of Diversion Dam (Upper Bidwell Park, on s. side of Upper Park Rd., Chico); Chico, Upper Bidwell Park 134 Comment
  CAS-BOT-BC175967  Hypericum Lowell Ahart 1977-7-19 s.n. Butte Peter Ahart Ranch, Honcut. Along North Honcut Creek 50 Comment
  CHSC41258  Hypericum formosum var. scouleri S. C. Morey 1983-7-21 477 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  CHSC58921  Hypericum formosum var. scouleri Lowell Ahart 1992-8-2 6899 Butte On the bottom of Concow Creek, in Concow Meadow, about 3 (air) miles north-east of Concow Reservoir. 1097 Comment
  UC1563293  Hypericum mutilum L. Ahart 1990-10-3 6627 Butte ca. 1/4 mi. n.e. Canyon Creek Bridge across Lake Oroville (bottom of E. Fork Canyon Creek); Lake Oroville 259 Comment
  CHSC99308  Hypochaeris glabra Lowell Ahart 2008-5-21 14767 Butte Below the high water line of Lake Oroville, on the north and south side of the South Fork of the Feather River, where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 246 Comment
  CHSC96883  Hypochaeris radicata Lowell Ahart 2007-6-12 14063 Butte East of high ridge on Big Bald Rock, about 14 miles (air) northeast of Oroville. 972 Comment
  UC600658  Ipomopsis aggregata H. F. Copeland 1928-8-14 Butte Jonesville Comment
  CAS-BOT-BC133512  Iris hartwegii A. A. Heller 1939-3-23 15357 Butte 3 miles below Paradise on the Pentz road Comment
  POM169076  Iris hartwegii Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  CHSC3927  Iris macrosiphon Wayne O. Baum 1967-3-24 24 Butte Ca. 2 mi. e. of the Skyway and Humbug Rd. intersection, on the nw. side of Humbug Rd. 91 Comment
  RSA135847  Iris macrosiphon Lee W. Lenz, E. K. Balls 1955-5-13 20692 Butte Along road crossing from Oroville-Magalia road to U.S. Highway 40 alt. via Pentz 488 Comment
  CHSC81194  Isoetes howellii J. Trizzino 2001-4-25 58 Butte Oro-Chico Highway, 0.25 mi west of Neal Road, wet ditch on north side of road. 54 Comment
  CHSC84250  Isoetes howellii Lowell Ahart 2003-5-28 10233 Butte On the bottom of Hendricks ditch, about 1 3/4 miles west of the iron gate and fence, west of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 271 Comment
  CHSC43572  Isoetes nuttallii Vernon Oswald 1984-2-22 1083 Butte Upper Bidwell Park, Chico, ca. 100 ft n of Upper Park Rd. at Diversion Dam. 134 Comment
  CHSC39527  Isolepis setacea Lowell Ahart 1983-6-12 4047 Butte In a small meadow, about 1 mile south of Crystal Hill, near Oregon Gulch, near Lake Oroville, about 7 miles south-west of Feather Falls. 425 Comment
  CHSC51025  Isolepis setacea Lowell Ahart 1990-7-15 6564 Butte Along a small stream, 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
  CHSC55623  Isolepis setacea L. P. Janeway 1987-6-19 2252 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
  CHSC107601  Jensia rammii Lowell Ahart 2011-7-9 17569 Butte On the west 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
  CHSC93633  Juglans nigra Paul Kirk 2001-5-25 5 Butte City of Chico, parking lot on south side of the Senator Theater at 517 Main St. 30 Comment
  JEPS115037  Juncus articulatus Lowell Ahart 2007-10-31 14511 Butte On the north side of North Honcut Creek, east of the cable across the creek, Peter Ahart Ranch, about 3/4 miles north and 2 1/4 miles east of Honcut, about 12 miles southeast of Oroville 40 Comment
  CHSC6672  Juncus balticus Marilyn Lee 1968-4-19 102 Butte Along W. side of Cherokee Rd., ca. 2 miles S. of Cherokee and 100 yards S.E. of cemetary. Comment
  SEINET10971375  Juncus balticus Lowell Ahart 1984-5-6 Ahart 4586 Butte T17N R4E. Along North Honcut Creek, Peter Ahart Ranch, ca. 1.3 mi N and 3 mi E of Honcut; ca. 12 mi S of Oroville. Foothill Woodland; 50 m. 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
  CHSC102179  Juncus balticus var. balticus Lowell Ahart 2009-8-12 16291 Butte On dry to damp dark soil, meadow, along small drainages, 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. 236 Comment
  CHSC47524  Juncus bufonius var. bufonius Lowell Ahart 1974-5-31 463 Butte Small wash, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC6669  Juncus bufonius var. bufonius Marilyn Lee 1968-4-19 123 Butte Along west side of Cherokee Road, near first reservoir, ca 100 yards east of cemetary and 2 miles south of Cherokee. Comment
  CHSC90821  Juncus bufonius var. bufonius Lowell Ahart 2005-5-2 11775 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
  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
  JEPS113862  Juncus bufonius var. congestus Lowell Ahart 2007-6-3 13971 Butte West of the bridge across Concow Creek, west side of Jordan Hill Road, about 1 1/2 miles (air) southwest of Concow Reservoir 415 Comment
  CHSC61351  Juncus covillei var. covillei Lowell Ahart 1993-7-23 7101 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
  CDA2694  Juncus cyperoides G. D. Barbe, T. C. Fuller 1982-6-14 3675 Butte Black Bart Road 0.5 mile west of Forbestown Road. Comment
  CHSC50808  Juncus dubius Vernon Oswald; Lowell Ahart 1990-7-31 4419 Butte Meadow at the headwaters of Concow Creek, ca. 4 mi north of Cocow. Along the creek at the foot of the meadow. 1097 Comment
  CHSC94601  Juncus effusus subsp. pacificus Lowell Ahart 2006-9-13 13324 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
  CHSC99750  Juncus effusus subsp. pacificus Lowell Ahart 2008-7-23 15152 Butte On the east side of McCabe Creek, below the high water line of Lake Oroville, about 100 yards southwest of the poor parking area, about 3/4 mile southwest of the Enterprise Bridge, about 11 miles (air) east of Oroville. 243 Comment
  JEPS113834  Juncus effusus subsp. pacificus Lowell Ahart 2007-7-15 14307 Butte Along the west side of Encina Grande Road (Bloomer Hill Road), about 150 yards north and south of homes, about 1 1/2 miles (air) southeast of Bloomer Hill 656 Comment
  RSA725034  Juncus effusus subsp. pacificus L. Ahart 2006-9-13 13324 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
  CHSC107568  Juncus effusus var. pacificus Lowell Ahart 2011-8-19 17637 Butte About 30 yards east of Know-northing Creek, in low area on the north side of Lumpkin Ridge Road, about 1/2 mile southwest of the intersection of Lumpkin Ridge Road, County Road and road to Cascade, about 5 miles (air) northeast of Feather Falls. 1252 Comment
  CDA39195  Juncus effusus var. pacificus L. H. Heinricks 1964-6-4 s.n. Butte T.M. Morrill property, 405 Circle Drive, Oroville. 0 Comment
  CDA39194  Juncus ensifolius T. C. Fuller 1962-7-12 9203 Butte 2 miles east of Butte Meadows. 0 Comment
  SEINET260324  Juncus howellii Lowell Ahart 1988-7-23 6071 Butte S of the intersection of Black Bart Rd and Forbestown Rd ca 1 mi W of Robinson Mill Rd 671 Comment
  CHSC47557  Juncus leiospermus Lowell Ahart 1978-5-2 1703 Butte On the edges of small vernal pools on the top of Table Mountain, east of the large parking area, about 7 miles north of Oroville. 396 Comment
  CAS-BOT-BC110104  Juncus leiospermus var. ahartii Lowell Ahart 1982-5-14 3434 Butte Peter Ahart Ranch, about 2 miles north and 0.5 mile east of Honcut. 50 Comment
  CAS-BOT-BC110146  Juncus leiospermus var. ahartii Lowell Ahart 1974-4-24 423 Butte Peter Ahart Ranch, Honcut. 45 Comment
  JEPS110149  Juncus leiospermus var. ahartii Lowell Ahart 2006-4-27 12538 Butte In a vernal pool, about 100 yards north of the tower by the south fence, pasture fields, Peter Ahart Ranch, about 1 mile north and 1 3/4 miles east of Honcut 58 Comment
  UC1543895  Juncus leiospermus var. ahartii Lowell Ahart 1978-5-1 1692 Butte Peter Ahart Ranch Honcut 50 Comment
  SEINET11787693  Juncus nevadensis R. A. Schlising, Jokerst, J. D. 1982-1 1653 Butte easternmost pond on bench along S edge of Coon Hollow 1707 Comment
  CHSC99748  Juncus nevadensis var. nevadensis Lowell Ahart 2008-7-23 15153 Butte On the west side of McCabe Creek, below the high water line of Lake Oroville, about 100 yards southwest of the poor parking area, about 3/4 mile southwest of the Enterprise Bridge, about 11 miles (air) east of Oroville. 243 Comment
  CHSC78338  Juncus occidentalis Lowell Ahart 2000-6-29 8535 Butte On the west side of Concow Road at Flea meadow, about 1/2 mile west of Flea Mountain, about 3 1/2 miles (air) north of Concow Reservoir, about 5 miles (air) east of Magalia. 1036 Comment
  CHSC99758  Juncus occidentalis Lowell Ahart 2008-6-13 14816 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
  UC600812  Juncus orthophyllus H. F. Copeland 1932-8-12 Butte Butte Creek Jonesville 1500 Comment
  CHSC57213  Juncus parryi L. P. Janeway 1987-7-5 2455 Butte At end of old logging road east of the Concow Road and 1.0 mi southwest of Jones Meadow. At granite outcroppings overlooking Balsam and Big Kimshew Creeks. 1798 Comment
  RSA754880  Juncus tenuis L. Ahart 2009-6-18 15914 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
  CAS-BOT-BC279903  Juncus trilocularis Lowell Ahart 2008-6-13 14814 Butte About 50 yards west of the cemetery, about 150 yards north of Oregon Gulch, about 10 miles (air) northeast of Oroville 324 Comment
  JEPS122063  Juncus trilocularis Lowell Ahart 2014-5-21 19531 Butte About 100 yards west from Ponderosa Way, about 1/4 mile northwest of the Ponderosa Dam. Comment
  CHSC111175  Juncus usitatus Lowell Ahart 2013-6-18 18808 Butte About 60 yards west of Parking Lot 14, Gray Lodge Wildlife Management Area, about 7 miles (air) southest of Gridley. 19 Comment
  CHSC113971  Juncus usitatus Lowell Ahart 2014-11-24 19921 Butte On the sides of a small drainage, below the high water line of Lake Oroville, about 200 yards west of the second parking area, old Bidwell Bar Road, about one mile south of Oroville Quincy Highway, about 8 miles (air) northeast of Oroville. 225 Comment
  CHSC96975  Juncus usitatus Lowell Ahart 2007-7-11 14290 Butte About 100 yards west of the high gravel road (at turn, before washout), about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. 35 Comment
  JEPS121895  Juncus usitatus Lowell Ahart 2014-11-24 19921 Butte Below the high water line of Lake Oroville, about 200 yards west of the second parking area, old Bidwell Bar Road, about one mile south of Oroville Quincy Highway, about 8 miles (air) northeast of Oroville. Comment
  CHSC3896  Juniperus californica Don Heinz 1967-2-12 Butte Collected at Butte Co. Dump, Neal Rd., ca. 7 mi. SE of Chico. 106 Comment
  HSC23527  Juniperus californica Don Heinz 1967-2-12 Butte Butte Co. dump, Neal Rd. 7 mi. SE of Chico 107 Comment
  CDA41422  Keckiella breviflora subsp. breviflora Ball & Raynor May 1945 s.n. Butte Chico. 0 Comment
  CHSC115275  Keckiella breviflora var. glabrisepala Lowell Ahart 2015-5-5 20143 Butte On the south side of the gravel road, Oroville Wildlife Area, about one mile south of the Headquarters, about one mile south of Thermalito. Raparian Woodland (destroyed). 39 Comment
  NY790166  Keckiella breviflora var. glabrisepala L. Ahart 1980-6-19 2386 Butte Along the edge of Swedes Flat Road, ca. 2.5 miles east of the Bangor-Oroville Highway, near Bangor. 320 Comment
  UC1594577  Keckiella breviflora var. glabrisepala Lowell Ahart 1992-5-9 6765 Butte about 2 air mi n Oroville (on n side of Thermalito Diversion Pool, on n side of dirt road); Lake Oroville Recreation Area 76 Comment
  NY790335  Keckiella lemmonii L. Ahart 1983-7-24 4209 Butte On the road cutbanks at the Forbestown Res., about 5 miles northeast of Forbestown. 450 Comment
  UC889317  Kelloggia galioides A. A. Heller 1917-7-29 12870 Butte summit above Jonesville 2133 Comment
  UC179501  Kyhosia bolanderi A. A. Heller 1914-8-7 11653 Butte meadows Butte 1219 Comment
  CAS-BOT-BC340449  Lactuca saligna John Thomas Howell 1959-9-20 34704 Butte Feather River Highway at West Branch bridge 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
  CHSC38367  Lactuca serriola Vernon Oswald 1983-6-27 774 Butte Upper Bidwell Park, Chico, near the n. boundary of the park in the depression w of the Easter Cross. 88 Comment
  SEINET9775665 Image available Lactuca serriola Richard Carter 2006-7-30 Butte N Chico, 0.3 mi N jct. Nord Hwy and Esplanade, between Esplanade and Hwy CA 99 Comment
  CAS-BOT-BC340533  Lactuca serriola A. A. Heller 1916-9-9 12654 Butte Near Durham Comment
  UC175392  Lagophylla glandulosa A. A. Heller 1913-9-16 11138 Butte e Chico (hills near Big Chico Creek) Comment
  CAS-BOT-BC341313  Lagophylla glandulosa David D. Keck 1930-7-25 974 Butte 6.5 miles east of Oroville on Forbestown road 425 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
  CHSC45213  Lamarckia aurea Lowell Ahart; Jim Jokerst 1980-3-23 2050 Butte At the north end of the West Branch Bridge (Highway 70) and on the north side of the road, about 14 miles north of Oroville. 304 Comment
  CHSC31888  Lamium amplexicaule L. Ahart 1973-4-15 201 Butte Peter Ahart Ranch, Honcut. 45 Comment
  JEPS121980  Lapsana communis Lowell Ahart 2014-7-7 19564 Butte About 5 yards east of the Skyway, about one-mile north of Stirling City. Comment
  CAS-BOT-BC337908  Lasthenia californica H. F. Copeland 1929-5-4 s.n. Butte Canyon of Chico Creek Comment
  UCD80083  Lasthenia californica subsp. californica CNPS SN Foothill Team 2005-3-31 SNFN 0072 b Butte CDFG North Table Mountain Wildlife Area outside Oroville. Plot is ca. 1 mile west-southwest of turnout on tabletop, 1/4 mile northeast of a minor ravine. 310 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
  SEINET10475348  Lasthenia fremontii Mary Susan Taylor 1980-3-28 Taylor 2400 Butte T22N R2E E center sec 31. Vernal pool area in Valley Grassland, just E of Chico, NE corner of jct of Notre Dam Blvd and the Skyway, ca. 1/8 mi E of Hwy 99. 69 Comment
  RSA715476  Lasthenia glaberrima L. Ahart 2005-5-14 11810 Butte Peter Ahart Ranch, about 2 miles N and 0.25 mile E of Honcut, about 12 miles (air) SE of Oroville. 26 Comment
  RSA726251  Lasthenia platycarpha R. R. Halse 2002-3-27 6159 Butte At the junction of State Highway 99 and Hamilton Nord Cana Highway. ca. 8 miles NW of Chico. 40 Comment
  CHSC45907  Lathyrus angulatus Lowell Ahart 1978-5-15 1727 Butte Peter Ahart Ranch, about 2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC76940  Lathyrus jepsonii var. californicus Margie Collins 1894-5-1 Butte Chico Creek. Comment
  JEPS119626  Lathyrus latifolius Lowell Ahart 2012-6-14 18196 Butte Annie's Glen, Lower Bidwell Park, Chico. 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
  CHSC102976  Lathyrus tingitanus Lowell Ahart 2009-6-3 15811 Butte On the north side of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 311 Comment
  RSA303518  Lathyrus tingitanus James R. Shevock 1972-5-19 1760 Butte South of Oroville, Hwy 70. 52 Comment
  CHSC31092  Layia fremontii Stephen M. Turek 1980-4-14 1 Butte Ca. 5 yds s of Humboldt Road, 1.7 mi e of E. Monte Road, 50 yds s of Highway 32, 1 mi e of Chico. 71 Comment
  CHSC90108  Layia fremontii Richard R. Snow 1991-3-20 3 Butte 5 ft north of Renkow Road about 12.8 mi north of Chico. Roadside area. 70 Comment
  RSA682150  Layia fremontii R. R. Halse 2002-3-27 6151 Butte At the junction of State Highway 99 and Hamilton Nord Cana Highway. ca. 8 miles NW of Chico. 40 Comment
  POM361691  Layia fremontii J. Doty 1969-4-1 620 Butte East side of State Hwy 70, just north of turnoff to Palermo, ca. 4 miles south of Oroville. Comment
  CAS-BOT-BC249064  Layia platyglossa George K. Helmkamp; E. A. Helmkamp 2012-2-9 18547 Butte Sacramento Valley: W of Oroville & N of Gridley, west side of CA-99, 0.1 mile south of its junction with CA-162/Biggs-Willows Rd. 43 Comment
  SFV4007  Layia platyglossa M. L. Vincent 1961-3-29 39 Butte Sacramento Valley Oroville-Chico Road, 1 mile east of Chico. 60 Comment
  CHSC113135  Leersia oryzoides Lowell Ahart 2013-9-20 19056 Butte Along a ditch, about 100 yards west of the railroad, about 300 yards south of the Rice Experiment Station buildings, about 2 miles southeast of Richvale. 30 Comment
  CHSC103014  Lemna minuta Lowell Ahart 2009-10-8 16410 Butte On the south side of the road, about 50 yards east of Parking Lot 15, Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley. 19 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
  CAS-BOT-BC339120  Leontodon saxatilis subsp. saxatilis Lowell Ahart 1986-11-14 5475 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
  CDA43062  Lepidium strictum L. P. Janeway 2010-11-17 10233 Butte Sacramento Valley.; Oroville; in gravel parking area at east side of Feather River Ranger District office (875 Mitchell Ave.). Comment
  CDA32441  Leptochloa fascicularis Margaret Bellue Butte Afton Rd., near Biggs. 0 Comment
  CHSC117322  Leptochloa fusca subsp. fascicularis B. Castro 2008-7-15 1759 Butte Sacramento Valley. Ca 2.5 mi W of Hwy 99 and 1.1 mi SE of Richvale, and ca 0.5 E of the Midway. Near jcn of Cherokee Canal, Southern Pacific RR and the Biggs Extension canal, along edge of rice field in adjacent ditch. 31 Comment
  CHSC83005  Leptochloa fusca subsp. fascicularis Lowell Ahart 2002-9-7 9929 Butte On the east side of Cherokee Road, north of the Thermalito Diversion Canal, on the west side of the water purification pond, about 1 mile north of Oroville. 130 Comment
  SEINET10588903  Leptochloa fusca subsp. fascicularis Lowell Ahart 1986-11-14 Ahart 5480 Butte On dry red gravelly soil, on the bottom of a pond, about 1/10 mile south of the clay burrow for Oroville Dam, 1/4 mile east of Larkin Road about 6 miles southwest of Oroville. Valley grassland. 37 Comment
  UCD73015  Leptosiphon bicolor Ayzik Solomeshch 2003-4-9 s. n. Butte Wurlitzer Reserve, about 10 mi. north from Chico on Hwy 99, west side of the road. Comment
  CHSC1285  Leptosiphon filipes J. Gulick 1929-4-18 Butte Rifle Range, near Chico Creek. 76 Comment
  CHSC97318  Leptosiphon filipes L. P. Janeway 2007-7-2 9079 Butte Northern High Sierra Nevada. Plumas National Forest; along the road to Cascade 1.0 road km north-northwest of its crossing of Fall River; 0.4 air km east of the confluence of Dark Canyon at Fall River. Along edges of road and soft decomposed granite at base of road cut bank. 1052 Comment
  UCD80637  Leptosiphon filipes CNPS SN Foothill Team 2005-5-26 SNNR 0203 b Butte City of Chico, Upper Bidwell Park, near the intersection of 10 Mile House Road and Guardian Trail. The stand runs parallel to the Guardian Trail, which runs through part of the stand. 427 Comment
  UC1287396  Lessingia nana Willard Spence 1962-7-24 730 Butte 4 mi s Oroville (along alternate Rt. 40) Comment
  CHSC38121  Lessingia nemaclada R. L. Ondricek-Fallscheer 1982-10-30 160 Butte At edge of road, sw tip of Flatiron Ridge, ca. 3 1/2 mi wsw of Paradise. 134 Comment
  RSA725007  Lessingia nemaclada L. Ahart 2006-9-13 13331 Butte At the Cresta Power House, about 2 3/4 miles northeast of Pulga, about 23 miles (air) northeast of Oroville 452 Comment
  UC725484  Lessingia nemaclada A. A. Heller 1923-10-21 13832 Butte Paradise Comment
  JEPS17913  Lessingia virgata Rimo Bacigalupi with G. T. Robbins 1955-7-22 5442 Butte 2.5 mi s Oroville (n-facing hillside along Calif. Hwy. no. 24, at junction of road to Palermo) 48 Comment
  CHSC97256  Lewisia cantelovii Lowell Ahart 2007-5-16 13894 Butte On the east side of Highway 70, about 150 yards no ... Field redacted by CHSC, contact the data manager for more information 463 Comment
  CHSC57132  Lewisia nevadensis L. P. Janeway; R. A. Schlising 1988-7-22 3049 Butte Upper Coon Hollow; just below saddle between Coon Hollow and Chips Creek. 1920 Comment
  UCD13237  Lewisia rediviva Bot. 108 student - Ray? 1974-4-8 79 Butte California: Butte Co. Near Oroville, between Route 1330 and Coal Canyon. Elev. ca. 500 ft. 152 Comment
  CHSC42588  Ligusticum grayi Vernon Oswald 1985-6-20 1849 Butte Scotts John Rd., 0.6 mi n of Rd. 26N27, ca. 2.25 air miles e of Jonesville. 1755 Comment
  JEPS117524  Ligustrum japonicum Lowell Ahart 2010-9-24 17239 Butte Near the north edge of the Golf Course, about 200 yards northeast of the footbridge, about 250 yards northeast of the Golf Club House, about 50 yards south of Big Chico Creek, Bidwell Park 99 Comment
  CAS-BOT-BC451601  Lilaea scilloides Lowell Ahart 1989-5-23 6240 Butte North of the new subdivision road, 1/2 mile east of Dunstone Drive, about 1/2 mile north of Bangor Park Road, west of Bangor 76 Comment
  SEINET10469576  Lilium pardalinum Mary Susan Taylor 1978-7-19 Taylor 1735 Butte Cherry Hill Campground, on S side of Old Humboldt Road, ca. 2 mi SW of Jonesville. 1524 Comment
  CHSC43044  Lilium pardalinum subsp. pardalinum L. P. Janeway 1987-6-19 2241 Butte Side ravine south from Sly Cr, 1.6 mi from the Challenge-La Porte Rd along the rd to the SE side of Sly Cr Reservoir. 1097 Comment
  CAS-BOT-BC133053  Lilium washingtonianum subsp. washingtonianum E. B. Copeland 1931-7-12 615 Butte Jonesville 1600 Comment
  CHSC24944  Limnanthes alba M. L. McCrum 1976-4-26 18 Butte Ca. 6.0 mi sw of Cohasset on Cohasset Rd., .25 mi e on dirt rd. 365 Comment
  CHSC2388  Limnanthes alba subsp. versicolor R. Carter 1965-4-12 178 Butte Found 7.5 mi. E of Oroville, 20 yds. from gate at end of Feathervale on N side of road. 274 Comment
  CHSC36137  Limnanthes douglasii subsp. nivea Linyi Maslin 1981-4-1 14 Butte Near water. North Table Mountain, ca. 5 km n of Oroville. 390 Comment
  CHSC38539  Limnanthes douglasii subsp. rosea Vernon Oswald 1983-3-5 117 Butte Upper Bidwell Park, Chico, near the s-e corner of the Omicron Enclosure. 85 Comment
  HSC43087  Limnanthes douglasii subsp. rosea Maralyn O'Meara 1974-4-20 292 Butte Table Mtn. 305 Comment
  UC203549  Limnanthes douglasii subsp. rosea A. A. Heller 1914-3-23 11224 Butte in low hills 8 mi n Oroville Comment
  UCD116439  Limnanthes floccosa Jeff Dole 1988-3-28 s.n. Butte east of Chico airport. Comment
  CAS-BOT-BC45924  Limnanthes floccosa subsp. californica L. P. Janeway; Pat Kelly 1991-3-31 3867 Butte Between Hwy 32 and Dead Horse Slough, and from 600 to 1200 ft west of Bruce Road Comment
  CHSC42218  Limnanthes floccosa subsp. californica John E. Hunter 1986-3-30 39 Butte Ca. 1 km e Chico, 50 m s Hwy. 32. 75 Comment
  JEPS120764  Limnophila X ludoviciana Lowell Ahart 2013-9-20 19062 Butte About 20 yards north of Hamilton Road, about 1/8 mile east of Riceton Highway, about 1 mile southeast of the Rice Experiment Station. Comment
  UCD169442  Limnophila X ludoviciana Lowell Ahart 2005-8-28 12336 Butte 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 Road. 28 Comment
  CHSC112705  Limosella acaulis Lowell Ahart 2013-10-26 19218 Butte South side of Philbrook Creek, below the high water line (strand) of Philbrook Reservoir. 1681 Comment
  CHSC31874  Limosella aquatica L. Ahart 1978-4-2 1624 Butte Peter Ahart Ranch, Honcut. 50 Comment
  POM73994  Linanthus dichotomus subsp. meridianus C. C. Bruce 1897-04 1967 Butte Near Deadwood Comment
  CHSC48993  Linaria dalmatica subsp. dalmatica Vernon Oswald 1986-5-12 2032 Butte Skyway 1.3 mi wsw of Neal Rd. in Paradise. 405 Comment
  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
  JEPS97415  Lindernia dubia var. anagallidea Lowell Ahart 1995-7-15 7595 Butte 11/2 mi N and 3/4 mi E of Honcut; Peter Ahart Ranch 36 Comment
  RSA726854  Lindernia dubia var. anagallidea L. Ahart 2007-7-8 14271 Butte On the north side of North Honcut Creek, Peter Ahart Ranch, aout 3/4 miles north and 2.5 miles east of Honcut, about 12 miles (air) southeast of Oroville. 46 Comment
  SEINET3450716  Lindernia dubia var. anagallidea Unknown 2003-6-23 10305 Butte Cottonwood, Cottonwood, about 12 air miles east /northeast, about 2.8 air miles south/southwest of the Darah Springs State Fish Hatchery, about 0.25 miles south of the Coleman Canal, about 350 yards south of the barn 30 Comment
  CHSC33339  Linnaea borealis var. longiflora R. Banchero 1980-7-7 285 Butte Ca. 5.5 mi NE of the town of Feather Falls. 1.9 mi S of the Fall River Campground along the 'Quartz Creek Rd. 1147 Comment
  CHSC90295  Linnaea borealis var. longiflora L. P. Janeway 1994-7-19 4697 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
  CHSC37824  Lipocarpha micrantha R. A. Schlising 1979-10-13 3501 Butte Along Sacramento River w of Chico, just n of Chico Landing Site in Bidwell River State Park. Comment
  SEINET10467512  Lipocarpha micrantha Lowell Ahart 1983-9-17 Ahart 4430 Butte T22N R4E se section 31. Ca. 1/8 mi ne of Kunkle Reservoir, south of Paradise. Foothill Woodland; 600 m. 600 Comment
  CHSC68910  Listera convallarioides Lowell Ahart 1997-7-11 7745 Butte Southeast of Cold Creek, about 2 miles (air) southwest of Bald Mountain, about 9 miles by road from Stirling City, or about 2 miles (air) northeast of Stirling City. 1219 Comment
  CHSC25472  Lithocarpus densiflorus Hayes; Warner 1977-9-11 67 Butte Along Hwy 32 above Forest Ranch, exactly 21.4 mi from Hwy 99 overpass in Chico. 701 Comment
  SEINET12028399  Lithocarpus densiflorus M. Hayes, Warner 1977-1 67 Butte along Hwy-32 above Forest Ranch,exactly 21.4mi from Hwy-99 overpass in Chico 701 Comment
  CDA14774  Lithocarpus densiflorus var. densiflorus G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-26 3377 Butte 1.1 miles northeast of Mountain House. 1051 Comment
  POM219578  Lithophragma bolanderi H. F. Copeland 1923-3-16 47 Butte [Unspecified] Comment
  UCD102726  Lithophragma heterophyllum Robert Kehlor 1951-4-14 32 Butte J. M. Kehlor Ranch, 6.25 miles east of Oroville. Comment
  POM91966  Lithophragma parviflorum var. trifoliatum C. C. Bruce 1898-03 1844 Butte Plains [no specific locality given] Comment
  UC1206542  Lithophragma tenellum E. B. Copeland 1931-6-19 Butte Jonesville at The Summit; Jonesville at The Summit Comment
  SEINET10497330  Lithospermum californicum Mary Susan Taylor 1981-4-8 Taylor 3511 Butte T22N R4E se sec 1, Pulga SW quad. On dry serpentine embankment, w side of Ponderosa Way, along Rocky Ridge, ca. 5.5 mi n of its jct with Hwy 70 at Jarbo Gap, ca. 20 air mi n of Oroville. 2900 ft. 884 Comment
  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
  CAS-BOT-BC342380  Logfia gallica Lowell Ahart 1988-5-12 5998 Butte About 1/2 mile north-east of the Honcut Cemetery, Joie Osgood Ranch, about 3 1/2 miles east and 1 1/2 miles north of Honcut 60 Comment
  CHSC6730  Lolium multiflorum B. Anthony 1968-3-24 411 Butte Archery course, Bidwell Park, Chico. Comment
  UCD66076  Lolium multiflorum Barbara Ertter; Lowell Ahart 1986-4-13 5889 Butte Ca. 2 air miles NNE of Honcut between Oroville and Marysville, Peter Ahart Ranch. 30 Comment
  RSA755351  Lolium perenne subsp. multiflorum L. P. Janeway 2008-3-18 9235 Butte Cascade Range Foothills. East edge of City of Chico, south side of Humboldt Road 1.3 km northeast of Bruce Road. 123 Comment
  CHSC42616  Lomatium macrocarpum Vernon Oswald 1985-4-3 1698 Butte Concow Rd. n of Lake Concow. 914 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
  CHSC29759  Lomatium utriculatum J. D. Jokerst 1980-4-21 631 Butte Top of North Table Mt., ca. 1.0 mi N of Cherokee Rd., at water falls of North branch of Coal Cr. 381 Comment
  UC195445  Lomatium utriculatum A. A. Heller 1914-4-3 11259 Butte 8 mi. n. Oroville Comment
  CHSC54522  Lonicera cauriana Vernon H. Oswald; Lowell Ahart 1991-8-11 4823 Butte Marshy meadow located on the southeast side of Humbug Rd, ca. 0.5 mile northeast of the northeast end of Snag Lake. 1767 Comment
  CAS-BOT-BC240449  Lonicera hispidula Mrs. J. H. Morrison 1932-6-1 s.n. Butte Near Durham Comment
  CHSC115688  Lonicera hispidula Emily Meigs Doe 2015-5-12 28 Butte Northern High Sierra Nevada. Plumas National Forest. About 2.75 mi. (air) NW of Forbestown. Roadside of Rd. 19N19, ap-proximately 750 ft. NE of its junction with Ponderosa Way. 746 Comment
  CHSC195  Lonicera hispidula H. Goodyear 1939-5-4 Butte Honey Run grade 457 Comment
  CAS-BOT-BC240693  Lonicera interrupta Lowell Ahart 1989-5-29 6306 Butte Along Robinson Mill Road, about 1 1/2 miles south of Forbestown Road 670 Comment
  SEINET10465044  Lonicera japonica Mary Susan Taylor 1975-6-22 Taylor 784 Butte California State University, Chico, campus. 61 Comment
  CAS-BOT-BC200897  Lotus John Thomas Howell 1976-4-1 51523 Butte Table Mountain, 4 to 5 miles north of Oroville Comment
  CHSC52339  Lotus corniculatus Pauleen Broyles 1987-5-21 1044 Butte The Nature Conservancy Vina Plains Preserve. Abundant on N bank of Pine Creek. Comment
  SEINET10452360  Lotus corniculatus Mary Susan Taylor 1975-6-25 Taylor 804 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
  RSA303521  Lotus humistratus J. R. Shevock 1972-5-19 1771 Butte Hwy 70, approx 10 mile N of Lake Oroville. 549 Comment
  UC171019  Lotus incanus H. M. Hall 1913-5-27 Butte Stirling City Sierra Nevada Mountains Comment
  CDA13324  Lotus nevadensis G. F. Hrusa, T. D. Wilfred 1996-7-9 13170 Butte Sierra Nevada; Approx. 1 mi. on 22N89. Immed. S of Rogers Cow Camp on Hwy 162. Comment
  UC1562361  Lotus nevadensis var. nevadensis Vernon Oswald and Lowell Ahart 1990-7-5 4349 Butte just w Scout Rd. (on the n side of Humboldt Rd, n edge of Butte Meadows); Butte Meadows 1325 Comment
  SEINET11268222  Lotus oblongifolius Vernon H. Oswald, Lowell Ahart 1998-8-11 9465 Butte USFS 28N35 at a branch of Wildcat Creek ca. 1 mi north of Four Trees-Coyote Gap Rd.; 0 1396 Comment
  UC426913  Lotus oblongifolius var. oblongifolius E. B. Copeland 1930-7-11 420 Butte Jonesville 1500 Comment
  RSA769807  Lotus purshianus var. purshianus L. Ahart, John Dittes, Josephine Guardino 2008-11-8 15439 Butte South bank of Lindo Channel, about 50-100 yards west of the diversion structure, north of Hooker Oak, Upper Bidwell Park, Chico 69 Comment
  JEPS87135  Lotus scoparius Lowell Ahart 1992-5-9 6763 Butte about 2 air mi n Oroville (on the n side of the Thermalito Diversion Pool); Lake Oroville Recreation Area 76 Comment
  CHSC51007  Ludwigia palustris Lowell Ahart 1990-7-15 6565 Butte Along a small stream, 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
  UC204453  Ludwigia palustris A. A. Heller 1914-8-13 11683 Butte hills 8 mi. n. Oroville Comment
  RSA516784  Ludwigia palustris var. pacifica L. Ahart 1980-9-8 2593 Butte Peter Ahart Ranch, Honcut. 50 Comment
  UC726545  Lupinus A. A. Heller 1942-6-5 16497 Butte about halfway between the junction Middle Fork and West Branch of the Feather River Highway; halfway bet jct of Middle Fork and West Branch Feather River Comment
  CHSC86544  Lupinus albicaulis var. albicaulis L. P. Janeway; John Hunt, Christine Hantelman 2003-6-26 7860 Butte Northern Sierra Nevada Foothills. Along south edge of South Fork Feather River arm of Lake Oroville, 2.5 km east-southeast of south end of Bidwell Bar bridge. 280 Comment
  CHSC901  Lupinus albifrons R. Carter 1964-3-23 64 Butte 5 mi. E of Chico Rd. on Cherokee Rd. on rocky bank on E side of road. 60 Comment
  SEINET10452618  Lupinus albifrons Mary Susan Taylor 1981-4-5 Taylor 3480 Butte T21N R4E se sec 2; Berry Creek quad. E side of Dark Canyon Rd, 2.2 mi s of its jct with Big Bend Rds, ca. 3 air mi s of Jarbo Gap on Hwy 70, n of Oroville. Steep rock wall; 1400 ft. 427 Comment
  SEINET10452619  Lupinus albifrons Mary Susan Taylor 1976-4-27 Taylor 1098 Butte Abundant in Yellow Pine Forest, on N or S side of Ponderosa Way, ca. 1-4 mi E of junction of Villas Rd and Cohasset Hwy, ca. 23 mi NE of Chico. 610 Comment
  SEINET12164082  Lupinus albifrons Unknown 1984-1 5 Butte Oroville. ca 50 yds W of State Hwy. 70 .4miS of junc w/ Oroville Dam Blvd 46 Comment
  CAS-BOT-BC196145  Lupinus albifrons var. douglasii Grace Kermode 1899-5-30 s.n. Butte Centerville Comment
  UC398928  Lupinus angustiflorus E. B. Copeland 1929-7-17 378 Butte above Jonesville; above Jonesville 2000 Comment
  UC392199  Lupinus arbustus E. B. Copeland 1929-7-24 Butte Jonesville 1600 Comment
  HSC38055  Lupinus densiflorus Thomas W. Nelson, Jane P. Nelson 1976-5-10 2463 Butte Beside SR 191 just N of its junction with SR 70 Comment
  CHSC39492  Lupinus formosus Lowell Ahart 1983-6-21 4076 Butte Growing along Bloomer Hill Rd, about 3/4 mile west of the Oroville Quincy Highway, about 15 miles north-east of Oroville. 425 Comment
  SEINET6655084  Lupinus grayi Lowell Ahart, Peter Ahart 1984-7-19 4721 Butte About 1 1/2 mile south-east of Bald Mountain, 3/4 mile west of Oak Point, about 4 miles north-east of Stirling City.; 0 1500 Comment
  CHSC30071  Lupinus lepidus var. sellulus R. A. Schlising; R. Banchero 1980-7-7 3850 Butte Along Lumpkin-La Porte Road E of Feather Falls, 0.2 mi W of jct with road to Golden Trout Crossing. 1280 Comment
  UC726687  Lupinus microcarpus var. densiflorus A. A. Heller 1942-4-26 16437 Butte s of the Oregon City Road junction Table Mountain (Table Mountain) Comment
  CHSC90191  Lupinus nanus Eric M. Haney 1989-4-21 1 Butte Found in Bidwell Park, ca. 100 m e of Horseshoe Lake. Comment
  CHSC3936  Lupinus nanus var. apricus Ann Dolder 1967-4-8 Butte In the foothills, ca. 300 yds ne of road of Table Mt. 6 1/2 miles from Oroville. 335 Comment
  JEPS117147  Lupinus pachylobus Lowell Ahart 2010-4-30 16593 Butte Below rim and above cliffs, north side of disk golf area, on a ridge about 250 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 360 Comment
  SEINET10490230  Lupinus sellulus var. artulus Edwin B. Copel 1931-7-3 Copeland 651 Butte Jonesville. Colby Canyon, in dry and barren openings. 1600 Comment
  SEINET12164064  Lupinus subvexus P. J. Minton 1980-1 2 Butte c 13miN of Chico, ca 1miW of Hwy 99 and 3 ft S of Halle Rd 61 Comment
  SEINET10489014  Lupinus succulentus Mary Susan Taylor 1982-4-28 Taylor 4354 A Butte Pennington quad. Corolla blue. Graylodge waterfowl refuge, n side of Rutherford rd, ca 1.8 mi w of its jct with pennington rd at the checking Station, ca 12 mi sw of gridley. With brassica nigra, hemizonia parryi rudis. 21 Comment
  SEINET10490272  Lupinus superbus var. elongatus A. Arthur Heller 1938-7-20 Heller UMO 71624 Butte Moist grassy places near clumps of willows, upper end of snag lake, 7 mi e of Chaparral in the arid transition life zone. 1524 Comment
  SEINET10472425  Luzula parviflora Lowell Ahart 1991-8-25 Ahart 6705 Butte Forest Road 23N60 (Jordan Creek-Marble Creek Road) just south of Jordan Creek, east of Oroville-Quincy Hwy, ca 5.75 miles (air) northeast of Brush Creek. Yellow Pine Forest. T22N R6E NW/SW/S14. 1082 Comment
  SEINET10498036  Lycopus americanus Lowell Ahart 1991-9-14 Ahart 6717 Butte On the edges of a ditch, between the two large reservoirs, Joie Osgood Ranch, about 2 miles east of Honcut. Valley Grassland. T17N R4E S/C/S14. 46 Comment
  CHSC80018  Lythrum hyssopifolia L. P. Janeway; B. Castro 1999-6-4 6453 Butte Sacramento Valley. East side of the Sacramento River 1.6 km southeast of the Ord Ferry Road Bridge. 30 Comment
  CHSC96034  Lythrum salicaria L. P. Janeway 2006-7-19 8819 Butte Sacramento Valley. Waterfowl brood pond on shallow arm of Thermalito Afterbay, 225 m east of Wilbur Road, 2.1 km south of Hwy 162. 41 Comment
  CHSC112696  Lythrum tribracteatum Lowell Ahart 2013-6-18 18809 Butte Edge of a pond, about 30 yards north of Lower Honcut Road, about 1 3/4 miles west of Honcut. 26 Comment
  JEPS120857  Lythrum tribracteatum Lowell Ahart 2013-6-18 18809 Butte About 30 yards north of Lower Honcut Road, about 1.75 miles west of Honcut. Comment
  SEINET10452850  Lythrum tribracteatum Lowell Ahart 1991-5-20 Ahart 6655 Butte On the north side of Rutherford Road, Gray Lodge Waterfowl Management Area, about 1/4 mile west of Pennington Road, about 10 miles southwest of Gridley. Freshwater Marsh. T17N R1E S13. 20 Comment
  CAS-BOT-BC342705  Madia elegans A. A. Heller 1914-8-13 11684 Butte Hills 8 miles north of Oroville Comment
  CAS-BOT-BC342718  Madia elegans Mrs. C. C. Bruce 1897-4-1 1986 Butte Forest - Ranch Comment
  JEPS40334  Madia elegans H. A. Dutton 1921-1 Butte Hooker Oak Chico Comment
  CAS-BOT-BC342714  Madia elegans David D. Keck 1930-7-25 978 Butte Four miles west of Forbestown on Oroville road, eastern Butte County 760 Comment
  CHSC32361  Madia exigua J. D. Jokerst; M. S. Taylor, R. A. Schlising 1980-6-14 835 Butte Little Bald Rock, N slopes. 914 Comment
  CHSC93862  Madia exigua Lowell Ahart 2006-6-9 12650 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
  CHSC96962  Madia exigua Lowell Ahart 2007-6-12 14071 Butte Along swales, in a large bare granite opening (about an acre in size), northeast of Little Bald Rock, about 300 yards east of Bean Creek Road, about 16 miles (air) northeast of Oroville. 1009 Comment
  CHSC26671  Madia glomerata M. S. Taylor; M. Hayes, R. Schlising 1977-8-17 1456 Butte On e side of Humbug Rd, ca. 4.5 mi ne of Butte Meadows turnoff from Hwy 32. 1326 Comment
  CHSC41250  Madia gracilis S. C. Morey 1983-7-21 473 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  CHSC86135  Madia gracilis John Dittes; Josephine Guardino 2002-6-21 618 Butte Northern High Sierra Nevada Range; Watson Ridge; ca. 1.2 air-miles east of Middle Fork Feather River, ca. 1.7 air-mile north by northwest of Feather Falls Overlook, ca. 5.4 air-miles west by southwest of Cascade. 1133 Comment
  JEPS98930  Madia subspicata Bruce G. Baldwin, Gerald D. Carr, Lowell Ahart 1988-6-9 713 Butte 1 mi N, 3 mi E of Honcut (Peter Ahart Ranch, above North Honcut Creek) Comment
  CHSC6014  Magnolia M. MacArthur 1968-6-19 269 Butte NE end of PSA bld., Chico State College. 60 Comment
  CDA13274  Malacothrix floccifera G. F. Hrusa, T. D. Wilfred 1996-7-9 13122 Butte Plumas National Forest; N ridge above Jordan Creek. Nr. Jordan Creek headwaters S of Hwy 162 near Roger's Cow Camp. Comment
  CHSC65465  Malus Vernon Oswald 1988-5-30 3346 Butte Butte Creek Canyon Ecological Reserve e of Hwy 99 between Butte Creek and Durham Mutual Ditch. 70 Comment
  CHSC66671  Malvella leprosa Vernon H. Oswald; Lowell Ahart 1996-7-22 8094 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 the NE corner of Tract 1.1, Sanctuary II. 33 Comment
  CHSC115438  Marah fabacea Ariana Gehrig 2013-3-10 Butte City of Chico. Big Chico Creek at Rio C hico Way. Along pathway. 64 Comment
  CHSC573  Marah fabacea var. agrestis S. Ptomey 1929-4-1 Butte Bidwell Park. 60 Comment
  CHSC13931  Marah watsonii J. DiVittorio 1974-4-30 28 Butte Ca. 3.5 mi ne of Cohasset on Cohasset Hwy, and ca. 100 yds w side of the road. 609 Comment
  CHSC28647  Marah watsonii M. S. Taylor 1979-3-20 1960 Butte Along old road on n side of Feather River. Ca. 1/4 mi n of Hwy 70, ca. 10 mi n of Oroville. 304 Comment
  CHSC34154  Marsilea vestita L. Ahart 1981-8-31 3059 Butte Wyandotte Lake, ca. 8 mi e of Oroville. 450 Comment
  SEINET10834130  Marsilea vestita Mary Susan Taylor 1980-8-15 Taylor 3253 Butte T21N R2E nw sec 36, Hamlin Canyon quad. Pentz vernal pool, 0.4 mi SE of jct of Pentz (Benum) Rd, and Hwy 99, ca. 10 mi S of Chico; Valley Grassland. With E. Pierce. 55 Comment
  SEINET10474310  Matricaria matricarioides Mary Susan Taylor 1975-4-11 Taylor 456 Butte Ca. 1/4 mi E of Salmon Hole, between Chico Creek and Upper Bidwell Park Rd, Upper Bidwell Park, Chico. Associates: Quercus spp., Pinus sabiniana, Galium aparine, Brodiaea hyacinthina. Foothill Woodland. 183 Comment
  CHSC46313  Matricaria occidentalis Vernon Oswald 1989-6-6 3799 Butte Butte Sink Wildlife Area (w portion of Schohr Ranch). Waste area just n of the lighted parking area on the main ranch road n of Butte Creek-Little Dry Creek. 18 Comment
  CHSC65986  Matricaria occidentalis Vernon H. Oswald 1996-5-9 7545 Butte Sacramento River Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. In the S paddock of Tract 7, Sanctuary II. 32 Comment
  UCD134447  Matricaria occidentalis L. Ahart 1977-4-25 1320 Butte Peter Ahart Ranch, Honcut. 50 Comment
  RSA754793  Medicago polymorpha L. Ahart 2009-5-8 15662 Butte S side of gravel road, about 10 yards E of Cedar Grove Parking Area in Lower Bidwell Park, Chico 67 Comment
  UC204541  Medicago polymorpha A. A. Heller 1914-3-7 11186 Butte along a small stream in olive orchard 8 mi n Oroville Comment
  CAS-BOT-BC271134  Melica aristata E. B. Copeland 1929-7-18 337 Butte Jonesville 1550 Comment
  CHSC46606  Melica aristata V. Oswald; L. Ahart 1989-7-12 3843 Butte Logging road (T-Line) 0.6 mi (air) nnw of Bald Mtn Lookout, ne of Stirling City. 1560 Comment
  CHSC69122  Melica aristata Lowell Ahart 1997-8-1 7804 Butte On the south side of County Road, southwest of Keyser Creek, about 1 1/2 miles southeast of Bald Mountain, about 6 miles (air) northeast of Stirling City. 1432 Comment
  RSA700242  Melica aristata L. Ahart 2004-7-23 11299 Butte On the east side of the road, north of the West Branch Campground, south of the bridge across the West Branch of the Feather River, about 1.5 miles (air) west of Philbrook Reservoir Dam., About 3.75 miles (air) southeast of Butte Meadows. 1457 Comment
  CAS-BOT-BC269387  Melica californica John Thomas Howell; Gordon H. True 1967-6-11 42563 Butte On northwest side of Feather River Canyon near Pulga Bridge Comment
  JEPS48096  Melica californica Paul C. Hutchison with J. K. Wright and R. Bacigalupi 1963-6-1 2691 Butte w side Pulga Bridge; North Fork of Feather River 487 Comment
  CHSC36067  Melica geyeri J. D. Jokerst; R. A. Schlising 1982-6-4 1586 Butte N of Concow Basin. 853 Comment
  CHSC39278  Melica harfordii Lowell Ahart 1983-7-29 4231 Butte Along the dirt road, about 1/4 mile west of Milsap Bar, about 25 miles north-east of Oroville. 500 Comment
  CHSC87952  Melica harfordii Lowell Ahart 2004-6-22 11112 Butte On the east margin of a gravel road, road leads to Butte Creek, south of Doe Mill Road, about 1/8 mile southwest of the bridge across Butte Creek, about 2 miles (air) southeast of Forest Ranch, about 5 miles (air) west of Stirling City. 692 Comment
  CAS-BOT-BC262457  Melica subulata E. B. Copeland 1929-7-16 s.n. Butte Jonesville 1550 Comment
  CHSC38831  Melica torreyana Vernon Oswald 1983-4-10 320 Butte Upper Bidwell Park, Chico, ca. 500 ft w of Day Camp. In bed of an old oxbow of Chico Creek. 91 Comment
  CHSC6148  Melica torreyana E. Parreno 1968-4-28 80 Butte W end of Covered Bridge, Chico. Comment
  JEPS120130  Melica torreyana Lowell Ahart 2012-5-14 18053 Butte On the raw bank of Big Chico Creek, at Table 11, north of the paved road, Lower Bidwell Park, Chico. Comment
  UCD89080  Melica torreyana A. A. Heller 1915-4-20 11859 Butte Butte County. 7 miles below Cenerville in the Sierra foothills, where it is locally plentiful on the banks of Butte Creek. 76 Comment
  CHSC5965  Melilotus albus M. MacArthur 1968-6-17 150 Butte SE side Big Chico Creek just below Headhouse, Chico State College campus. 60 Comment
  CHSC31880  Melilotus indicus L. Ahart 1977-5-22 1398 Butte Along the edges of North Honcut Creek, Peter Ahart Ranch. 50 Comment
  CHSC38520  Melilotus indicus Vernon Oswald 1983-5-15 493 Butte Upper Bidwell Park, Chico, in the bed of Lindo Channel between Chico Creek and the flood-control gates. 79 Comment
  JEPS98987  Melilotus officinalis Lowell Ahart 2001-6-1 8747 Butte On the south side of Biggs-Princeton Road, about 1/2 mile east of Butte Creek, about 8 miles west of Biggs. 21 Comment
  CHSC34144  Melissa officinalis L. Ahart 1981-9-27 3210 Butte On sides of dredger piles ca. 1/8 mi ne of jct of Lower Wyandotte Rd and Upper Palermo Rd, ca. 4 mi ne of Palermo. 80 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
  CHSC92047  Mentha spicata Lowell Ahart 2005-8-19 12334 Butte On the east side of North Honcut Creek, about 1 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 49 Comment
  UC177575  Mertensia ciliata H. M. Hall 1914-7-25 9784 Butte Jonesville Sierra Nevada Mountains 1554 Comment
  UC179654  Mertensia ciliata H. M. Hall 1914-7-25 9784 Butte Jonesville Sierra Nevada Montains 1554 Comment
  CHSC28950  Mertensia ciliata var. stomatechoides M. S. Taylor 1978-7-19 1755 Butte On w side of Upper Scotts John Rd, ca. 2 mi n of jct of Upper Scotts John Rd and Scotts John Rd, ca. 4 mi e of Jonesville. 1828 Comment
  CHSC108793  Micranthes fallax Lowell Ahart 2012-4-9 17841 Butte On the high south cliff edge of Big Chico Creek, northwest of South Rim Trail, south part of Upper Bidwell Park, about 2 1/4 miles (air) northeast of Chico. 161 Comment
  CHSC45981  Micranthes integrifolia Lowell Ahart 1975-3-18 712 Butte Near North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC42857  Micranthes nidifica Lowell Ahart 1987-5-22 5664 Butte In a small wash, about 1/4 mile southeast of Lumpkin Ridge Road, about 1 1/2 miles east of Camp 18, about 8 miles northeast of Feather Falls. 1280 Comment
  CAS-BOT-BC429073  Micranthes odontoloma E. B. Copeland 1931-7-20 s.n. Butte Vicinity of Jonesville, Lassen National Forest. 1500 Comment
  CHSC11903  Micranthes oregana E. B. Copeland 1929-7-20 369 Butte Jonesville. In swamp. 1550 Comment
  SD116539  Microcala quadrangularis Barbara Ertter, Jeff Strachan and Lowell Ahart 1980-5-7 3294 Butte Peter Ahart Ranch; ca., 2.5 miles northnortheast of Honcut between Oroville and Marysville. 29 Comment
  CHSC31595  Micropus californicus var. californicus L. Ahart 1972-5-6 97 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC392  Micropus californicus var. californicus E. Canfield 1904-5-7 Butte Hooker Oak field. 76 Comment
  SEINET10971137  Microseris acuminata Mary Susan Taylor 1978-4-14 Taylor 1562 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
  CHSC31661  Microseris elegans L. Ahart 1978-4-27 1674 Butte Peter Ahart Ranch, Honcut. Fields. 50 Comment
  POM74584  Microsteris gracilis subsp. gracilis C. C. Bruce 1897-06 2004 Butte Fields Comment
  SEINET9800583 Image available Mimetanthe pilosa Richard Carter 2006-7-30 Butte N Chico, 0.3 mi N jct. Nord Hwy and Esplanade, between Esplanade and Hwy CA 99 Comment
  HSC32623  Mimulus angustatus Dave Knorr 1974-4-20 125 Butte On Cherokee Mtn., road about 1 mi. E of Cherokee Comment
  UCD22551  Mimulus aurantiacus James I. Mallory 1970-5-26 374 Butte T22N R3E Sect. 3 426 Comment
  UC1093972  Mimulus aurantiacus var. grandiflorus Herbert L. Mason 1941-4-6 12421 Butte 2 mi n Oroville (n side of river); Feather River Comment
  JEPS4727  Mimulus bicolor Lincoln Constance 1941-5-28 2831 Butte Magalia Sierra Nevada foothills, South Branch Feather River 487 Comment
  POM264771  Mimulus bicolor Lincoln Constance 1941-5-28 2831 Butte South Branch of the Feather River at Magalia, Sierra Nevada foothills. 488 Comment
  SEINET10570115  Mimulus discolor Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4161 Butte T20N R6E se sec 6. Along Bean Creek Rd, ca. 4.5 mi s of Little Bald Rock, ca. 17.5 mi ne of Oroville. Foothill Woodland; 600 m. 600 Comment
  UC26940  Mimulus glaucescens Mrs. R. M. Austin March 1898 2104 Butte Comment
  SEINET12326956  Mimulus glaucescens Unknown 1978-1 20 Butte ca 30 ft E of Skyway Rd ca 4 mi NE of Butte Creek bridge between Chico & Paradise 229 Comment
  RSA754964  Mimulus guttatus L. Ahart 2008-5-21 14774 A Butte Lake Oroville, north and south side of the South Fork of the Feather River, where Sucker Creek enters the South Fork of the Feather River, about 0.25 mile northwest of the Ponderosa Dam. 246 Comment
  RSA795601  Mimulus guttatus Christopher T. Ivey 2010-6-7 376 Butte Honey Run Road, 8.0 km northeast of bridge crossing Butte Creek, in roadside ditch. 440 Comment
  SEINET10570356  Mimulus guttatus Mary Susan Taylor 1975-4-26 Taylor 534 Butte Kunkle Reservoir, ca. 500 yds E of Pentz-Magalia Hwy, ca. 1 m SE of Paradise. With Orthocarpus erianthus, Centaurea solstitus, Lupinus bicolor, Typha latifolia. 610 Comment
  UCSC000680  Mimulus guttatus Monica Larenas 1985-5-25 s.n. Butte Brush Creek Comment
  UCD96006  Mimulus kelloggii Dena Grossenbacher; Brian Green 2008-4-8 758 Butte About 0.5 miles west of main parking area at North Table Mountain Ecological Reserve located on Cherokee Road just south of junction with Derrick Road. 373 Comment
  UC725754  Mimulus latidens A. A. Heller 1940-5-13 15615 Butte 3 mi w Chico (on State Highway #32) Comment
  UC445157  Mimulus microphyllus Mrs. R. M. Austin Apr. 1899 85 Butte plains e Chico Comment
  JEPS115182  Mimulus moniliformis Lowell Ahart 2009-6-30 15978 Butte About 55 yards southeast of the gate, about 45 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 269 Comment
  UC426957  Mimulus moniliformis E. B. Copeland 1929-7-13 463 Butte Jonesville 1550 Comment
  CHSC20118  Minuartia californica M. S. Taylor 1975-4-26 522 Butte In vernal pool, on e side of Kunkle Reservoir, ca. 1/4 mi e of Pentz-Magalia Hwy, ca. 1 mi s of Paradise. 609 Comment
  CHSC208  Minuartia californica P. Delaplane 1965-3-10 39 Butte In back yard of 817 Rio Chico Way, Chico. 30 Comment
  CHSC45572  Minuartia californica Lowell Ahart 1976-4-11 1057 Butte Along the edge of roads, Peter Ahart Ranch, about 1 1/2 miles north and 2 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  JEPS110187  Minuartia californica Lowell Ahart 2006-4-28 12551 Butte About 150 yards south of the rim of Beatson Hollow, about 1 mile (air) west of the Iron Gate along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 333 Comment
  UC203619  Minuartia californica A. A. Heller 1914-3-18 11208 Butte 8 mi n Oroville Comment
  JEPS117627  Minuartia cismontana Lowell Ahart 2010-5-23 16734 Butte On the west side of Pine trail, about 40 yards west of Highway 32, about 9 miles (air) northeast of Chico 478 Comment
  CHSC39773  Minuartia douglasii N. E. Long 1974-3-24 Butte Atop Table Mountain, ca. 600 yards w of Cherokee Road and ca. 19.9 mi se of Chico. Comment
  JEPS98286  Moenchia erecta subsp. erecta Lowell Ahart 2000-5-9 8332 Butte 10 air miles NE of Oroville (S side of the dirt road, S side of the Oak Grove Cemetery, about 1/2 mi SE of Hurleton) 548 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
  CHSC51226  Monardella breweri subsp. lanceolata Lowell Ahart 1980-6-19 2389 Butte Along the edge of Swedes Flat Road, about 1/10 mile east of Rocky Honcut Creek, about 2 1/2 miles east of the Bangor Oroville Highway, north of Bangor. 304 Comment
  CAS-BOT-BC219944  Monardella breweri subsp. lanceolata Lowell Ahart 1989-5-31 6330 Butte North of Truex Road, near Lake Oroville, about 1/4 mile north-west of the West Branch Bridge across Lake Oroville 304 Comment
  CAS-BOT-BC219948  Monardella breweri subsp. lanceolata Lowell Ahart 1983-6-26 4134 Butte Near the edges of Ponderosa Way, near the East Fork of Canyon Creek, about 14 miles north-east of Oroville 500 Comment
  SEINET13948592 Image available Monardella lanceolata A. A. Heller 1914-1 11628 Butte Near Forest Ranch; 2400 ft alt. 732 Comment
  CAS-BOT-BC220457  Monardella sheltonii Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  CHSC43014  Monardella sheltonii L. P. Janeway 1987-6-26 2286 Butte 8.5 mi EW of Stirling City and 0.1 mi W of Fiver Corners on the road from Stirling City to Rag Dump. 1127 Comment
  CHSC67981  Monardella sheltonii James D. Jokerst 1989-7-3 3124 Butte Hwy. 70 and Pulga Rd. Comment
  CAS-BOT-BC220254  Monardella sheltonii Alice Eastwood 1913-6-18 s.n. Butte Chico Comment
  HSC93643  Monardella venosa B. Castro 1996-5-18 659 Butte 5.5 mi. SE of Paradise, in bottom of unnamed canyon just S of Neal Rd., 60 ft. N of creek channel directly under transmission lines 85 Comment
Read comments
Dec 20 2012
  NY411115  Monochoria vaginalis L. Ahart 1979-9-8 s.n. Butte California Rice Experiment Station. Valley Grassland. 33 Comment
  SEINET10572657  Montia diffusa Mary Susan Taylor 1981-5-5 Taylor 3615 Butte T20N R6E se/se sec 11 Forbestown quad. Along creek in Bryant Ravine at its jct with spur rd off 21N35Y, ca. 1 mi S of Feather Falls trailhead, ca. 0.5 air mi N of Feather Falls community. Yellow Pine Forest; 2700 ft. 823 Comment
  CHSC61328  Montia fontana subsp. amporitana Lowell Ahart 1993-7-31 7142 Butte On wet moss and in shallow water of a small seep (stream), on the west side of a poor dirt road that leads to a camp, just west of where the dirt road crosses Big Kimshew Creek, about 2 miles south-east of Bald Mountain. 1493 Comment
  CAS-BOT-BC445036  Montia linearis A. A. Heller 1919-5-18 13179 Butte Mosquito Creek between Appleton and Coutelence Comment
  CAS-BOT-BC233762  Montia parvifolia Mrs. Eva Pattee 1923-5-15 s.n. Butte Shady Rest near Cresta Comment
  CHSC12406  Montia parvifolia Lowell Ahart 1973-5-31 Butte Near Little North Fork, Feather River. 1066 Comment
  SEINET10572726  Montia saxosa Mary Susan Taylor 1977-7-15 Taylor 1401 Butte Butte Meadows, ca. 20 mi NE of Chico off Hwy 32. 1326 Comment
  SEINET10830264  Montia sibirica var. heterophylla Mary Susan Taylor 1978-7-19 Taylor 1736 Butte Cherry Hill Campground, on S side of Old Humboldt Road, ca. 2 mi SW of Jonesville. 1524 Comment
  CHSC20539  Morus alba Pamela Caldwell 1972-3-18 Butte Back parking lot of A. J. H. Bldg. CSUC campus. Comment
  JEPS116024  Muhlenbergia mexicana Lowell Ahart 2009-7-9 16023 Butte On the east side of Big Chico Creek, about 40 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 203 Comment
  RSA518697  Muhlenbergia mexicana L. Ahart 1990-10-21 6635 Butte Below the high water line of Lake Oroville, about 1 mile north of Nelson Bar Road, about half mile west of Gold Flat. 213 Comment
  CHSC11973  Muhlenbergia minutissima E. B. Copeland 1929-7-29 341 Butte Above Jonesville. On bank of pond. 1750 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
  CHSC42515  Myosotis discolor Lowell Ahart 1987-5-6 5507 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 274 Comment
  CHSC46343  Myosotis discolor Lowell Ahart 1989-5-28 6274 Butte Along a small stream, south of Oregon Gulch Road, about 1/2 mile north of the Cementery, about 1 1/4 miles west of Rocky Point, about 10 miles east and 3 miles north of Oroville. 335 Comment
  CHSC30882  Myosurus apetalus var. borealis J. D. Jokerst 1979-4-6 1180 Butte On bottom of vernal pools. Top of North Table Mt, ca. .75 mi N of Cherokee Rd. 396 Comment
  CHSC85417  Myriophyllum spicatum John Dittes 2003-10-8 844 Butte Arroyo Chico Land Grant. Northern Sacramento Valley; ca. 6.0 air-miles west by southwest of Chico, ca. 2.3 air-miles south of State Hwy 32, east bank of Sacramento River, Bidwell-Sacramento River State Park. 36 Comment
  JEPS88529  Najas gracillima Vernon H. Oswald and Lowell Ahart 1996-6-22 8093 Butte U.S. Fish and Wildlife Service parcel between Seven Mile Lane and Sacramento River. 32 Comment
  CHSC44042  Nama lobbii L. P. Janeway 1987-6-27 2329 Butte Along Little Kimshew Cr just north of Ramsey Bar. Open sandy DG among mtn. whitethorn. Site of old Ramsey Bar mining and timber activities. 1341 Comment
  CHSC82616  Narthecium californicum L. P. Janeway; B. Castro 2002-7-7 7606 Butte High Cascade Range. Soggy sedge-dominated meadow below the head of Keyser Creek and just below the dirt road; 0.5 km east of Bald Mountain Lookout. 1695 Comment
  JEPS105913  Narthecium californicum Lowell Ahart 2004-8-2 11321 Butte Large bog, the start of a small branch of Keyser Creek, on the south side of the dirt County Road, about 1/4 mile (air) east of Bald Mountain, about 4 miles (air) northeast of Stirling City 1689 Comment
  CHSC34986  Navarretia divaricata R. A. Schlising; R. Banchero 1981-5-20 4059 Butte E part of county, Lumpkin Ridge. Comment
  RSA699921  Navarretia filicaulis L. Ahart 2004-6-22 11120 Butte On the west side of Doe Mill Road, where the road goes east to the water ditch, about 0.5 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. 714 Comment
  UC726818  Navarretia leptalea subsp. leptalea A. A. Heller 1917-7-26 12817 Butte Butte Meadows 1280 Comment
  UC879888  Navarretia leptalea subsp. leptalea A. A. Heller 1917-7-26 12817 Butte Butte Meadows 1280 Comment
  UCD48505  Navarretia leucocephala H. A. Hannesson; R. N. Raynor 1941-5-9 s.n. Butte 4 miles N of Gridley. Comment
  SEINET10496828  Navarretia leucocephala Mary Susan Taylor 1986-5-6 Taylor 5623 Butte Butte County; Along Cana-Pine Creek Road, Wurlitzer Ranch area, ca. 7 mi N of Chico. Open sun in Valley Grass- land. With Vern Oswald and Lowell Ahart. 200 ft. 61 Comment
  SEINET10496829  Navarretia leucocephala Mary Susan Taylor 1978-5-7 Taylor 1610 Butte In and around Richvale vernal pool area, ca. 20 mi S of Chico, on W side of Hwy 99; Valley Grassland. 30 Comment
  UCSB34436  Navarretia leucocephala Haller, John; Vivrette, Nancy 1980-4-28 Butte Cherokee Road Comment
  CHSC75392  Navarretia leucocephala subsp. leucocephala Jennifer Slater 1997-4-20 24 Butte Upland area at the Wurlitzer addition of the Vina Plains Preserve, west of Highway 99, approx. 10 miles north of Chico. 67 Comment
  SEINET10869735  Navarretia squarrosa Mary Susan Taylor 1978-5-7 Taylor 1593 Butte In Valley Grassland, on E side of Williams Road, ca. 1/4 mi N of Pentz Road, on Butte College Campus, ca. 15 mi S of Chico. 30 Comment
  CHSC31804  Navarretia tagetina L. Ahart 1977-5-8 1360 Butte Peter Ahart Ranch, Honcut. Pasture fields. 50 Comment
  CHSC97363  Navarretia tagetina Paul Maslin 2005-5-1 56 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). UTM: 10619770E 4410043N. 243 Comment
  SEINET3163758  Navarretia tagetina L. S. Rose 1939-6-5 39197 Butte Honcut 30 Comment
  SEINET12331843  Nemacladus capillaris Unknown 1985-1 5059 Butte Lumpkin Ridge, 1-1/2 mi E of Camp 18, about 8 mi north-east of Feather Falls 975 Comment
  SEINET12329565  Nemacladus interior Unknown 1984-1 4669 Butte At the Ponderosa Dam, ca 2 mi NW of Forbestown;along dirt road to the generator on the N side of 370 Comment
  CHSC115445  Nemophila heterophylla M. Sutton; C. Yasuda 2013-4-9 29 Butte Centerville Flumes. 350 Comment
  HSC43096  Nemophila heterophylla Maralyn O'Meara 1974-4-20 3000 Butte Table Mtn. 305 Comment
  UC175556  Nemophila heterophylla A. A. Heller 1913-4-6 10720 Butte e Chico (along Big Chico Creek); , e of Chico Comment
  SEINET12326949  Nemophila heterophylla R. A. Emmrich 1975-1 54 Butte ca 0.5 mi E of Butte Creek and 0.25 mi SE of Covered Bridge, 6 mi ESE of Chico 107 Comment
  CHSC697  Nemophila menziesii E. Stilson 1897-4-1 Butte Comment
  POM199585  Nemophila spatulata H. F. Copeland 1932-6-29 s.n. Butte Jonesville. Above meadow by Butte Creek. Comment
  CDA42978  Nicotiana acuminata var. multiflora L. Ahart 2013-11-18 19279 Butte Below the high water line of Lake Oroville, about 150 yards northeast of the boat ramp at the end of Stringtown Road, about 50 yards north of the road, about 2 1/2 miles (air) northeast of Hurleton. Comment
  CAS-BOT-BC400070  Nuphar polysepala E. B. Copeland 1930-7-29 415 Butte Jonesville 1700 Comment
  CHSC2840  Odontostomum hartwegii David Prall 1965-4-25 27 Butte N side of Humbug Rd. 0.3 miles west of junction with Honeyrun Rd. (covered bridge). 152 Comment
  POM197244  Odontostomum hartwegii H. F. Copeland 1929-5-4 1130 Butte Canyon of Chico Creek. Comment
  SEINET10472783  Odontostomum hartwegii Mary Susan Taylor 1980-4-27 Taylor 2568 Butte T22N R2E sc sec 25. On N side of Humbug Rd, ca. 0.5 mi upstream from Honey Run Covered Bridge, ca. 7 mi E of Chico; Foothill Woodland. With J.D. Jokerst. 122 Comment
  SEINET12342943  Odontostomum hartwegii Unknown 1936-1 13408 Butte along Mud Creek near Chico Comment
  CHSC39065  Oemleria cerasiformis R. A. Schlising 1983-4-15 4401 Butte S of village of Cohasset on Cohasset Ridge, near Maple Branch of Mud Creek. 487 Comment
  CHSC39922  Onobrychis viciifolia M. S. Taylor 1982-6-24 4734 Butte At end of spur rd along Flea Valley Ridge, ca. 1.5 mi se of Flea Mt. ca 9 mi ne of Jarbo Gap on Hwy 70. 1066 Comment
  CHSC51081  Orthilia secunda Pauleen Broyles 1987-7-19 1077 Butte Ca. 72 km (air) ne of Inskip. at edge of small lake. 526 Comment
  CHSC91671  Orthilia secunda L. P. Janeway; Matt Brown 2005-7-13 8491 Butte Northern High Sierra Nevada. Plumas National Forest; Along Cedar Creek 0.4 km south of the Plumas County line; about 1.9 km northwest of North Fork Feather River. 1244 Comment
  SEINET12326963  Orthocarpus attenuatus R. E. Preston 1979-1 18 Butte N of Cherokee Rd, 5 mi N of Oroville 366 Comment
  RSA401999B  Orthocarpus erianthus J. Doty 1969-4-1 619 Butte East side of State Hwy 70, just north of turnoff to Palermo, ca. 4 miles south of Oroville. Comment
  SEINET10549677  Orthocarpus erianthus Mary Susan Taylor 1973-1 Taylor 59 Butte Upper Bidwell Park, Chico. Associates: Stipa pulchra, Lasthenia chrysostoma, Layia fremontii. 61 Comment
  POM193335  Orthocarpus hispidus E. B. Copeland 1930-6-28 470 -A Butte Jonesville. In 'Scotch John' meadow. 1700 Comment
  CHSC70827  Osmorhiza chilensis Vernon Oswald 1998-4-12 8903 Butte Upper Bidwell Park (new addition), Pine Trail between the trailhead on Hwy. 32 opposite Santos Rd. (between Chico and Forest Ranch) and South Rim Trail. 396 Comment
  SEINET10454516  Osmorhiza chilensis Mary Susan Taylor 1978-7-19 Taylor 1733 Butte Cherry Hill Campground, on S side of Old Humboldt Road, ca. 2 mi SW of Jonesville. 1524 Comment
  CHSC21007  Oxalis corniculata M. S. Taylor 1975-4-6 438 Butte In lawn, e side of 1200 block of Arcadian, Chico. 60 Comment
  HSC92457  Oxalis laxa L. Ahart 1975-5-12 766 Butte Along N Honcut Creek, Peter Ahart Ranch, ca. 1 mi. N and 2.5 mi. E of Honcut, ca. 12 mi. S of Oroville 43 Comment
  UC1972927  Packera eurycephala var. lewisrosei Catherine Schnurrenberger 2011-7-8 Butte Near Flea Mountain, off of Rim Road approx. 1 air mi N of Hwy 70 on and around the access road to the transmission line. 914 Comment
  SEINET10507745  Panicum capillare Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4239 Butte T22N R6E sw sec 36. Ca. 0.5 mi e of Milsap Bar, ca. 25 mi ne of Oroville. Yellow Pine Forest; 500 m. 500 Comment
  CHSC51293  Panicum dichotomiflorum subsp. dichotomiflorum Lowell Ahart 1990-9-30 6600 Butte Along the edges of Canyon Creek, below the high water line of Lake Oroville, below the Canyon Creek Bridge across Lake Oroville. 228 Comment
  CHSC66462  Panicum dichotomiflorum subsp. dichotomiflorum Vernon H. Oswald; Lowell Ahart 1996-6-10 7755 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Bed of seasonal marsh in the NE corner of Tract 7.2, Sanctuary I. 33 Comment
  RSA713848  Parentucellia viscosa L. P. Janeway 2006-5-24 8606 Butte Northern Sierra Nevada Foothills, near the eastern shores of Lake Wyandotte, 7 air km ESE of Oroville Dam. 422 Comment
  JEPS105887  Parvisedum pumilum Lowell Ahart 2004-2-7 10699 Butte near low rocks, large rocks to the south, about 1 mi NE of the Honcut cemetary, about 4 air mi NE of Honcut, about 12 air mi SE of Oroville 71 Comment
  CHSC37107  Paspalum dilatatum L. Ahart 1982-10-15 3895 Butte Along edges of North Honcut Creek, ca. 2.7 mi ne of Honcut. 50 Comment
  CHSC43276  Paspalum dilatatum Lowell Ahart 1987-8-30 5859 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
  CHSC8571  Paspalum dilatatum M. MacArthur 1968-6-23 291 Butte Ca. 30 ft. SW of Big Chico Creek up slope by Esplanade bridge, Chico State College. 60 Comment
  CHSC94974  Paspalum distichum Lowell Ahart 2006-10-13 13506 Butte Peter Ahart Ranch, about 1 1/2 mile north and 1 1/8 miles east of Honcut, about 12 miles southeast of Oroville. 33 Comment
  JEPS127627  Paspalum distichum B. Castro 2008-9-11 1774 Butte 10 air miles W of Gridley, 0.4 mi S of Gridley Rd., off SE bank of Cherokee Canal 0,2 mi NE of Sward bend in canal. Ca 40 feet out from levee toe. Comment
  SEINET10836216  Paspalum urvillei Lowell Ahart, Peter Ahart 1983-6-12 Ahart 4049 Butte T20N R5E n half sec 36. Ca. 1 mi s of Crystal Hill, n of Oregon Gulch, near Lake Oroville, ca. 7 mi sw of Feather Falls. Yellow Pine Forest. Comment
  CHSC62445  Paxistima myrsinites B. Castro; L. Janeway 1991-2-17 440 Butte Ca 6 air mi NW of Stirling City at Ewalt Camp, on NW-facing slopes E of W Branch Butte Creek and just W of Carpenter Ridge. Note: Sec 34 given for orientation since no sections are shown on quad map for this vicinity. 944 Comment
  CHSC43750  Pectiantia breweri Vernon Oswald; Lowell Ahart 1987-7-19 3137 Butte Ca. 0.3 mi (air) e of Bald Mt. Lookout Tower, ca. 0.3 mi ne of the spring and water tank. 1706 Comment
  CDA38827  Pectocarya pusilla L. Ahart 2012-4-3 17936 Butte On the east side of Guardian Trial, about 300 yards north of Humboldt Trail, north of Bloody Pin Trail, about 1/8 mile west of Highway 32, about 8 miles northeast of Chico, south part of Upper Bidwell Park. Comment
  SEINET12331911  Pectocarya pusilla Unknown 1985-1 4960 Butte 0.5 mi E of Potter Ravine, S of E branch of Potter Ravine, about 2.5 mi NE of Oroville Dam 350 Comment
  CHSC51927  Pedicularis attollens L. P. Janeway 1988-7-29 3123 Butte Mdw near Humbug Summit Rd 1.5 mi NE of the Snag Lake dam. 1767 Comment
  CHSC32661  Pedicularis densiflora M. S. Taylor; L. Hanson 1981-3-8 3402 Butte On s side of logging rd, ca. 50 yds n of its jct with 21N31Y, ca. 0.5 mi sw of Bald Rock Rd, ca. 1.5 mi ssw of Brush Creek. 1005 Comment
  CAS-BOT-BC67552  Pellaea mucronata Lowell Ahart 1979-4-6 s.n. Butte 3 mi. nw of Bangor, along the west side of North Honcut Creek. 100 Comment
  CHSC40286  Pellaea mucronata Lowell Ahart 1985-6-17 5055 Butte 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 975 Comment
  SEINET10529807  Pellaea mucronata Mary Susan Taylor 1980-4-6 Taylor 2431 Butte T8N R5E ec border sec 3. Junction of Rocky Honcut Creek and Swedes Flat Rd, ca. 2 mi E of Oroville-Bangor Hwy, ca. 10 mi SE of Oroville. With L. Ahart & J.D. Jokerst. 366 Comment
  RSA408435  Penstemon M. M. Boney 1897-1 4222 Butte [No location information provided.] Comment
  JEPS50783  Penstemon azureus Rimo Bacigalupi with Paul Hutchison and L. R. Heckard 1967-6-16 9279 Butte along Feather River Highway (now Calif. 70) about 3 1/4 mi n Jarbo Gap; along Feather River Highway, n of Jarbo Gap 609 Comment
  CHSC114692  Penstemon azureus J. R. Keck Jr. 1978-5-23 Butte Highway 70, Jarboe Gap. Near Poe Power House. Roadside. Comment
  RSA177468  Penstemon azureus subsp. angustissimus R. M. Straw 1962-6-26 2193 Butte 5 miles north of Bidwell Bar. 580 Comment
  POM44122  Penstemon azureus subsp. azureus C. C. Bruce 1898-05 2412 Butte Forest Ranch Comment
  CHSC99572  Penstemon azureus var. azureus L. P. Janeway 2008-5-26 9372 Butte Northern High Sierra Nevada. Steep northeast-facing slope high above West Branch Feather River about 1.9 air km northeast of Magalia; along Jordan Hill Road (old Ponderosa Way) 1.9 road km northeast of the bridge over West Branch Feather River. 666 Comment
  POM193324  Penstemon gracilentus E. B. Copeland 1930-7-6 457 Butte Above Jonesville 1950 Comment
  UC426950  Penstemon gracilentus E. B. Copeland 1930-7-6 457 Butte above Jonesville; above Jonesville 1950 Comment
  UCD124218  Penstemon heterophyllus L. E. Hazeltine 1916-7-25 s.n. Butte Chico. Comment
  POM14699  Penstemon heterophyllus subsp. purdyi A. A. Heller, H. E. Brown 1902-5-7 5482 Butte Berry Canyon (Near Clear Creek). From the type region. Comment
  RSA3797  Penstemon heterophyllus subsp. purdyi A. A. Heller 1926-4-21 13926 Butte Along Rock Creek, 7 mi. north of Chico 91 Comment
  RSA592500  Penstemon laetus subsp. leptosepalus S. O. Mattoon 1970-6-12 17 Butte Ponderosa Way Forest Road at Mud Creek; 5 air miles ESE of Cohasset; southern Cascade Mountains. 671 Comment
  CHSC43075  Penstemon laetus var. leptosepalus R. A. Schlising; J. D. Jokerst 1980-7-2 3818 Butte Nimshew Road, 1.0 mi S of Nimshew Cementary. 731 Comment
  CHSC44713  Penstemon laetus var. leptosepalus R. Banchero 1980-6-26 264 Butte Along Humbolt Rd 0.6 mi NE of its jct with Hwy 32. 1219 Comment
  NY604521  Penstemon laetus var. leptosepalus Mrs. C. C. Bruce 06 1898 2415 Butte Forest Ranch Comment
  POM195087  Penstemon laetus var. leptosepalus D. D. Keck 1930-7-24 972 Butte Near Chaparral. 1646 Comment
  UC423490  Penstemon laetus var. leptosepalus David D. Keck 1930-7-25 981 Butte 4 mi w Forbestown (eastern Butte County); Sierra Nevada, w of Forbestown 762 Comment
  UC423640  Penstemon laetus var. leptosepalus David D. Keck 1930-7-24 972 Butte near Chaparral; Sierra Nevada 1645 Comment
  CHSC11885  Penstemon neotericus E. B. Copeland 1929-7-13 456 Butte Jonesville. 1650 Comment
  NY627284  Penstemon neotericus E. B. Copeland 1929-7-13 456 Butte Jonesville 1650 Comment
  UC600436  Penstemon neotericus H. F. Copeland 1930-7-26 1378 Butte rocky point above hotel (Jonesville); Jonesville 1676 Comment
  CHSC69055  Penstemon newberryi var. newberryi Lowell Ahart 1997-8-1 7792 Butte On a mountain side, east of Little Kimshew Creek, east of Snow Meadow, about 1/4 mile east of Table Mountain , about 8 miles (air) northeast of Stirling City. 1524 Comment
  NY627345  Penstemon newberryi var. newberryi A. A. Heller 1942-5-8 16448 Butte A few feet from the Plumas County line along State Highway 24. Comment
  SEINET5329277 Image available Penstemon personatus S. Urie 1988-8-18 s.n. Butte T23N R8E S5 SE1/4 Comment
  CHSC32623  Pentagramma triangularis M. S. Taylor 1981-3-31 3464 Butte S side of Concow Rd, ca. 1/2 mi s of its jct with Ponderosa Way, ca. 20 air mi n of Oroville. 853 Comment
  UCD137730  Pentagramma triangularis L. Ahart 1974-3-18 329 Butte Along North Honocut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CAS-BOT-BC77139  Pentagramma triangularis subsp. semipallida Jeffrey D. Mott 1978-4-24 8 Butte West Branch Feather River - Cherokee Quadrangle 280 Comment
  CHSC42504  Pentagramma triangularis subsp. semipallida Lowell Ahart 1987-5-12 5637 Butte South of Lumpkin Ridge Road, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 1280 Comment
  UC1549532  Pentagramma triangularis subsp. semipallida M. S. Taylor 1981-4-28 3568 B Butte ca. 2-3 mi ne of Pulga (along Four Trees Rd, ca. 0.5 to 1 mi e of Hwy 70); Pulga SW Quadrangle 670 Comment
  CAS-BOT-BC77081  Pentagramma triangularis subsp. triangularis Lowell Ahart 1980-3-26 2063 Butte Near Hurleton. 600 Comment
  CHSC83907  Pentagramma triangularis subsp. triangularis Lowell Ahart 2003-4-10 10075 Butte Below the basalt cliffs, on the east rim of South Table Mountain, about 2 1/2 miles (air) north of Oroville. 309 Comment
  SEINET3166411  Pentagramma triangularis subsp. triangularis P. J. Alexander 2009-5-27 1049 Butte Western foothills of the northern Sierra Nevada, Feather Falls trail +-0.4 trail miles short of the overlook, 2.2 miles ESE of Bald Rock Dome, 17.8 miles NE of Orovoville, Plumas National Forest. 616 Comment
  UC1312887  Perideridia bolanderi subsp. involucrata Lincoln Constance and Tsan-Iang Chuang 1967-6-21 3778 Butte road to Magalia 1.8 mi n Pentz Store 137 Comment
  CHSC88068  Perideridia kelloggii R. D. Fischer 2004-6-6 154 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located off 10 Mile House Road at the Big Chico Creek fording point, e. side of the connecting tr. from the end of the w. side Upper Park rd. 213 Comment
  UCD127897  Perideridia kelloggii W. S. Wilkinson 1921-7-16 s.n. Butte Chico. Comment
  SBBG120014  Perideridia lemmonii L. Ahart 2006-8-15 13176 Butte 0.75 mi (air) NW of Jonesville, about 5 mi (air) NE of Butte Meadows 1569 Comment
  CHSC64034  Perideridia parishii subsp. latifolia S. C. Morey 1983-8-4 708 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  CHSC39083  Persicaria amphibia R. A. Schlising 1981-9-23 4205 Butte At crossing of Little Butte Creek by Seven Mile Lane, 1 mi s of junction with Nelson West Road. Comment
  CHSC113148  Persicaria lapathifolia Lowell Ahart 2013-11-13 19236 Butte Below the high water line of Lake Oroville, along the sides of Sucker Creek, about 30 yards north of the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 244 Comment
  CHSC1345  Persicaria lapathifolia V. Holt 1940-7-16 Butte W. Sacramento Ave., Chico. 54 Comment
  CAS-BOT-BC418949  Persicaria lapathifolia Lowell Ahart 1982-10-6 3844 Butte Along the edges of North Honcut Creek, about 1 mile north and 3 miles east of Honcut, Peter Ahart Ranch 50 Comment
  CAS-BOT-BC523829  Persicaria pensylvanica Lowell Ahart 1986-11-14 5457 Butte 0.1 mi south of the clay burrow for Oroville Dam, 0.25 mi E of Larkin Rd, about 6 mi SW of Oroville 36 Comment
  CHSC101313  Petrorhagia dubia Lowell Ahart 2009-4-22 15573 Butte West side of Guardians Trail, south side of the drainage just north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  SFV10239  Petrorhagia dubia M. L. Vincent 1964-4-9 s. n. Butte Pentz Road, 0.25 miles west from Barnum Road. Comment
  CHSC31964  Phacelia distans J. D. Jokerst 1979-4-20 1213 Butte Top of North Table Mt, W edge of mountain. 396 Comment
  CHSC11969  Phacelia heterophylla subsp. virgata E. B. Copeland 1930-7-13 446 Butte Jonesville. 1550 Comment
  CHSC58918  Phacelia procera Lowell Ahart 1992-7-29 6879 Butte Around large rocks, near cliffs, about 1 mile north-east of the Carr Mine, about 3/4 mile north-west of Lotts Lake. 1798 Comment
  CAS-BOT-BC154303  Phacelia ramosissima var. ramosissima Charles Piper Smith 1914-7-2 2905 Butte Chico Creek Comment
  CAS-BOT-BC250704  Phalaris paradoxa A. A. Heller 1914-5-13 11391 Butte Near Nelson Comment
  CHSC2173  Phalaris paradoxa D. Bower 1953-8-27 Butte 1A Llano Seco. 30 Comment
  CHSC66974  Phalaris paradoxa James D. Jokerst; Barbara Castro 1992-5-19 3354 Butte Cascade Range Foothills. Unnamed canyon N of Nugen Canyon on the S side of Neal Rd. near the Butte County Sanitary Landfill. 76 Comment
  SEINET10482894  Philadelphus lewisii subsp. californicus Heidi H. Schmidt 1993-6-15 Schmidt 863 Butte Plumas National Forest on state road 23N06 1.5 miles N of the junction with highway 70. Mixed hardwood forest. 880 Comment
  CAS-BOT-BC250861  Phleum pratense M. S. Taylor 1982-6-24 4728 Butte SE of Flea Mt, n of Pulga, ca. 5 air mi e of Magalia 1097 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
  CHSC35094  Phlox speciosa subsp. occidentalis Herb Allen McLane 1980-4-25 20 Butte Plumas National Forest, MDM, E side of Ponderosa Way. 390 Comment
  SEINET12230317  Phoradendron bolleanum M. S. Taylor 1975-1 918 Butte 1/2 mi N of Magalia, 50 ft. E of the Skyway 610 Comment
  CHSC20109  Phoradendron densum M. S. Taylor 1975-4-9 569 Butte In serpentine area ca. 50 yds e of the Skyway, ca. 1/4 mi n of the De Sabla turnoff, Magalia. 731 Comment
  CAS-BOT-BC135100  Phoradendron juniperinum M. S. Taylor 1981-4-8 3509 Butte N side of spur rd, ca. 1/3 mi W of its jct with Ponderosa way, ca. 5 mi N of its jct with Hwy 70 at Jarbo Gap, ca. 20 air mi N of Oroville Comment
  SEINET10492841  Phoradendron juniperinum subsp. libocedri Mary Susan Taylor 1981-4-8 Taylor 3509 Butte T22N R4E ne sec 12, Pulga SW quad. Serpentine outcrop n side of spur rd, ca. 1/3 mi w of Ponderosa Way/Rim Rd, ca. 5 mi n of Jarbo Gap on Hwy 70, n of Oroville. 2900 ft. 884 Comment
  RSA325023  Phoradendron libocedri M. S. Taylor 1976-2-22 997 Butte Ca 2 miles N of Cohasset, ca 10 ft E of Cohasset Hwy. 762 Comment
  CHSC103145  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
  HSC100733  Phoradendron macrophyllum Lowell Ahart 2009-8-3 16255 Butte E side of Ten Mile House Rd., Upper Bidwell Park, 3/4 (air) mi. W of Hwy. 32, 10 mi. NE of Chico. 210 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
  CHSC31465  Phoradendron villosum M. S. Taylor 1981-1-5 3373 Butte Ca. 100 ft e of Pentz-Magalia Hwy, ca. 1 mi s of Kunkle Reservoir, ca. 3 mi s of Paradise. 411 Comment
  RSA262354  Phoradendron villosum Kathy Corson 1969-4-6 28 Butte Upper Park Road in Big Chico Canyon, 8 miles NE of Chico. 61 Comment
  SEINET10492851  Phoradendron villosum Mary Susan Taylor 1979-10-13 Taylor 2256 Butte T22N R4E sw 1/4 sec 21. Yellow Pine Forest and Foothill Woodland transition zone on Jordan Hill Road (Ponderosa Way on some maps), ca. 4.0 mi N of its jct with Concow Road, ca. 3 mi E of Paradise. With Jim Jokerst. 610 Comment
  JEPS120060  Photinia Lowell Ahart 2012-4-9 17824 Butte On the north side of South Rim Trail, about 30 yards east of Big Chico Creek, south part of Upper Bidwell Park, about 3/4 mile east of the power lines, about 1 3/4 miles (air) northeast of Chico. Comment
  SEINET10546754  Physalis angulata var. lancifolia Mary Susan Taylor 1978-9-8 Taylor 1901 Butte Around rice fields, ca. 6 mi N of Chico. 61 Comment
  CHSC40355  Phytolacca americana Lowell Ahart; Vern Oswald 1985-7-28 5159 Butte On dry rocky disturbed soil along a small stream, along La Porte Road about 4 miles north-east of Bangor. 304 Comment
  JEPS99057  Pilularia americana Lowell Ahart 2002-4-24 9525 Butte Vernal pools and swales, in a field, on the east side of Lone Tree Road, about 1 1/8 miles north of Cox Lane, about 3 miles (air) SW of Palermo, about 7 miles (air) south of Oroville. 35 Comment
  CHSC3429  Pinus contorta Judy Potter 1966-3-23 131 Butte South wall administration building, Chico State College, Chico. Comment
  RSA719896  Pinus coulteri Michael A. Vincent, K. Levings 2006-7-29 12875 Butte East of Chico along Route 32. Comment
Read comments
Nov 1 2017
  CHSC110234  Pinus jeffreyi L. P. Janeway 2012-10-11 11074 Butte Northern High Sierra Nevada. Plumas National Forest; southwest-ern end of Rocky Ridge, 0.8 km west of Ponderosa Way/Rim Road, near high-voltage power lines. 895 Comment
  NY61631  Pinus lambertiana E. B. Copeland 1929-7-19 332 Butte This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA5146  Pinus lambertiana E. B. Copeland 1929-7-19 332 Butte Jonesville. 1600 Comment
  SEINET10530763  Pinus lambertiana Mary Susan Taylor 1976-2-22 Taylor 999 Butte Yellow Pine Forest, ca. 2 mi N of Cohas st, ca. 10 ft E of Cohasset Hwy. 610 Comment
  CAS-BOT-BC79016  Pinus ponderosa John Thomas Howell 1962-6-15 37431 Butte Magalia 731 Comment
  CHSC109616  Pinus sabiniana Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18019 Butte On the north side of Big Chico Creek, on the north side of the paved park road, southeast part of the old walnut orchard, south of Vallombrosa Avenue, about 1/8 miles of Peterson Drive, Lower Bidwell Park, Chico. 76 Comment
  JEPS105663  Piperia elongata L. P. Janeway, Christine Hantelman 2003-6-19 7852 Butte Northern Sierra Nevada Foothills. Along south edge of Middle Fork Feather River arm of Lake Oroville, half way between mouth of South Fork Feather River arm of the lake and mouth of Bean Creek 277 Comment
  CAS-BOT-BC136583  Piperia leptopetala Chester Dudley 1940-6-1 s.n. Butte Field redacted by CAS, contact the data manager for more information Comment
  CHSC54351  Piperia michaelii Lowell Ahart 1991-5-12 6653 Butte Peter Ahart Ranch, about 1 1/4 miles north and 2 1/2 miles east of Honcut, about 12 miles south-east of Oroville. 48 Comment
  CHSC74146  Piperia transversa R. Beattie; M. Muchowski 1996-7-17 Butte Ca 3 air mi SW of Walker Plains, on the N side of USFS Rd 22N93, 0.1 mi N of the Haphazard Creek crossing. 987 Comment
  CHSC33914  Pisum sativum G. Glascock 1965-4-29 372 Butte Ca. 20 yds w of Mailbox (Rt. 4, Box 4972) on Old Quincy Rd. ca. 0.5 mi. e of Arbol Ave. SW side of road. Comment
  JEPS124179  Plagiobothrys Lowell Ahart 2015-3-2 19943 Butte North of Larkin Road, about 6 miles (air) southwest of Oroville. Comment
  POM252790  Plagiobothrys fulvus var. fulvus A. A. Heller 1938-4-23 15044 Butte 1.5 mi. from Oroville on the Feather River Highway. Comment
  CHSC32127  Plagiobothrys glyptocarpus L. Ahart 1978-4-27 1667 Butte Along edges of small wash. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC40762  Plagiobothrys glyptocarpus Lowell Ahart 1985-4-29 4886 Butte On the bottom of a small wash, Peter Ahart Ranch, about 2 miles north and 2 miles east of Honcut, about 12 miles south of Oroville. 50 Comment
  RSA325178  Plagiobothrys glyptocarpus M. S. Taylor, L. Ahart, J. Jokerst 1984-4-6 5408 Butte Ca. 0.5 mi N of Kunkle Reservoir, on E side of Pentz-Magalia Hwy, ca. 3 mi S of Paradise. Comment
  RSA424707  Plagiobothrys glyptocarpus Aaron Liston 1987-4-24 658 -7 Butte Table Mountain, N of Oroville on Cherokee Road. Comment
  OBI20593  Plagiobothrys greenei Lewis S. Rose 1967-5-6 67056 Butte Oroville 52 Comment
  CHSC113448  Plagiobothrys hispidulus Lowell Ahart 2014-7-10 19627 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1664 Comment
  CHSC28143  Plagiobothrys shastensis Robert A. Schlising 1979-4-30 3382 Butte Ca 10 mi nw of Oroville, near jct Pentz and Clark Roads. At roadside. 76 Comment
  CHSC46769  Plagiobothrys shastensis Lowell Ahart 1980-4-7 2071 Butte Along Swedes Flat Road, about 1 mile east of the Bangor Oroville Highway, north of Bangor. 304 Comment
  SEINET10497612  Plagiobothrys stipitatus Mary Susan Taylor 1978-4-14 Taylor 1566 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
  UC78200  Plagiobothrys stipitatus R. M. Austin Apr 1896 626 Butte Adobe Swales Butte Creek Comment
  CHSC103731  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2010-5-16 16678 Butte About 1/4 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 378 Comment
  CHSC117399  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2016-5-30 20890 Butte On bottom of deep wash (west of where we removed gravel), Peter Ahart Ranch, about 1 1/2 miles north and 1 1/8 miles east of Honcut, about 12 miles (air) southeast of Oroville. 31 Comment
  CHSC29269  Plagiobothrys stipitatus var. micranthus R. A. Schlising 1979-4-15 3366 Butte Richvale vernal pools; 1/4 mi S of jct Hwy 162 to Oroville and Hwy 99, along latter and across from Thermalito Afterbay. Comment
  CHSC46773  Plagiobothrys stipitatus var. micranthus Lowell Ahart 1978-4-27 1670 Butte On the bottom of a small vernal pool, Peter Ahart Ranch, about 1 1/2 miles north and 2 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  RSA715885  Plagiobothrys stipitatus var. micranthus L. Ahart 2005-4-2 11682 Butte Overflow area on the E side of the Sacramento River, NW of Parrott Landing. About 1 mile SE of Ord Ferry. About 2 miles SE of Ordbend. About 12 miles (air) SW of Chico. 26 Comment
  UC1609328  Plagiobothrys stipitatus var. micranthus Lowell Ahart 1993-5-17 6946 Butte ca. 12 mi. s.e. Oroville (ca. 1.5 mi. n. and 3 mi. e. of Honcut, on w. side of Dunstone Rd.) 60 Comment
  CHSC75257  Plagiobothrys stipitatus var. stipitatus Jennifer Slater 1997-4-6 2 Butte At the Wurlitzer addition of the Vina Plains Preserve, approx. one mile west of Highway 99. 67 Comment
  CHSC28979  Plagiobothrys tenellus R. A. Schlising 1980-3-17 3516 Butte E of Chico and SW of Paradise, along Skyway; on cliff edges above Butte Creek. 213 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
  RSA0118696  Planodes virginica Lowell A. Ahart 2014-4-9 19325 Butte Rice field, near the pump, on the north side of Colusa Highway, about 0.4 mile east of the intersection of Pennington Road and Colusa Highway, about 5.5 miles west of Gridley. 23 Comment
  CHSC42706  Plantago coronopus Lowell Ahart 1987-6-9 5745 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
  HSC86822  Plantago coronopus Lisa Sedlacek 1978-4-18 15 Butte 25 yds. down from junction Hwy. 99 and Broyles Rd., NW corner of Butte County 61 Comment
  JEPS104005  Plantago elongata Lowell Ahart 2003-4-8 10032 Butte On the high water line of a small vernal pool, ca 20 yd south of a faint poor dirt road, pasture field, ca 150 yd sw of the iron gate and fence, w of Cherokee Rd, North Table Mountain, ca 7 mi (air) n of Oroville. 348 Comment
  JEPS22685  Plantago elongata Rimo Bacigalupi with Drs. Herbert and Lucille Mason 1958-4-25 6324 -B Butte 1.25 mi s Wicks Corner (along road from Chico to Oroville) 94 Comment
  JEPS94192  Plantago elongata Lowell Ahart 1998-4-8 7949 Butte 0.25 mi. n.e. Oroville (0.1 mi. n. of Thermalito Diversion Dam, e. of Thermalito Diversion Pool, w. of dirt rd.) 67 Comment
  JEPS115594  Plantago erecta Lowell Ahart 2009-4-22 15584 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
  UC171664  Plantago erecta Mrs. R. M. Austin Apr 1896 248 Butte Little Chico Creek Comment
  HSC73114  Plantago erecta M. S. Taylor 1981-4-21 3549 Butte S side of Concow Rd. on ridge, .5 mi. S of its junction with Ponderosa Way, 2 mi. N of Lake Concow, 20 air mi. NE of Oroville 854 Comment
  CHSC66165  Plantago lanceolata Vernon Oswald; Lowell Ahart 1996-5-27 7666 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service Parcel between 7 Mile Lane and the Sacramento River. Scattered plants in the formerly irrigated pasture in the S paddock of Tract 7, Sanctuary II. 32 Comment
  UC102803  Plantago lanceolata Mrs. R. M. Austin May 1896 290 Butte Little Chico Creek Comment
  JEPS94565  Platanthera leucostachys Lowell Ahart 1997-7-11 7746 Butte se Cold Creek (along small stream from springs, n of dirt road, about 2 air mi sw of Bald Mt., about 9 mi by road e (or about 2 air mi ne) of Stirling City) 1219 Comment
  UCSC000162  Platanthera sparsiflora H. F. Copeland 1935-7-26 s.n. Butte Jonesville 1500 Comment
  CHSC3332  Platanus racemosa Robert L. Smith 1966-5-23 64 Butte U. S. Plant Introduction Station 5 miles SE of Chico. Comment
  CHSC52186  Platanus racemosa Pauleen Broyles 1987-5-21 1054 Butte The Nature Conservancy Vina Plains Preserve Wurlitzer Addition. Occasional along Singer and Pine Creeks. Comment
  CAS-BOT-BC91591  Platystemon californicus A. A. Heller 1913-4-6 10718 Butte Bottoms along Big Chico Creek, east of Chico. Comment
  UC1185280  Platystemon californicus H. E. Brown 1897-4-15 Butte near Clear Creek; near Clear Creek 53 Comment
  POM132103  Pleuricospora fimbriolata Kate Conger 1907-1 s.n. Butte Brush Creek. Comment
  SD65551  Pleuricospora fimbriolata E. B. Copeland 1929-7-13 Butte Jonesville 1550 Comment
  CHSC56638  Poa annua J. Boze 1982-5-6 423 Butte In backyard garden area. End of Michal Way, ca 1.5 mi east of Hwy 99 off of Eaton Road. Comment
  CHSC99319  Poa annua Lowell Ahart 2008-5-21 14775 Butte Below the high water line of Lake Oroville, on the north and south side of the South Fork of the Feather River, where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 246 Comment
  OBI22115  Poa bolanderi H. F. Copeland 1932-8-19 s.n. Butte Vicinity of Jonesville, Lassen Natl Forest 1700 Comment
  SEINET10659121  Poa bolanderi Mary Susan Taylor 1980-8-2 Taylor 3206 Butte T27N, R5E center sec 32, Jonesville Quad. Humboldt Peak, N tip of the county. 2155 Comment
  CHSC59055  Poa compressa Lowell Ahart 1992-8-2 6897 Butte Along Concow Creek, in Concow Meadow, about 3 (air) miles north-east of Concow Reservoir. 1097 Comment
  CHSC99014  Poa compressa Lowell Ahart 2008-5-21 14776 Butte Dry bare granite soil, below the high water line of Lake Oroville, on the south side of the South Fork of the Feather River, where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 246 Comment
  CHSC8574  Poa pratensis J. G. Moore 1969-4-21 23 Butte Next to sidewalk on 11th St. 20 yds. w of Oakdale St., Chico. 60 Comment
  CHSC44177  Poa pringlei V. Oswald; L. Ahart 1988-7-29 3650 Butte Ca. 5 mi (air) se of Jonesville on the ridge running eastwards from the peak of Snow Mtn. 2103 Comment
  CHSC25105  Poa secunda subsp. secunda R. W. Wallstrum 1970-3-26 8 Butte Lower side of dam at Magalia Reservoir, 8 mi from Paradise, on s side of road. 609 Comment
  SEINET10663242  Poa sierrae Lowell Ahart 2007-5-22 Ahart 13914 Butte T21N, R6E, Section 28. 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 Big Bald Rock, about 16 miles (air) northeast of Oroville. 844 Comment
  CHSC103984  Poa tenerrima Lowell Ahart 2010-5-14 16662 Butte Disc Golf Area, about 200 yards west of the entrance to the Disc Golf Area, west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 350 Comment
  CHSC114680  Pogogyne ziziphoroides D. B. Joley 1971-4-24 Butte Chico; Morrow Lane, ca. 50 yards east of Pacific Telephone, 5 yards north of road. 61 Comment
  UC883706  Pogogyne zizyphoroides A. A. Heller 1914-4-11 11275 Butte 8 miles north of Oroville Comment
  SEINET13947033 Image available Pogogyne zizyphoroides Kitsy Kelly 1974-1 17 Butte Oroville Quadrangle, 300 yds S of the intersection of Pentz and Clark Rds; 200 ft alt., T21N, R3E, SEC27 61 Comment
  CHSC88060  Polanisia dodecandra subsp. trachysperma R. D. Fischer 2004-5-30 186 Butte Northern Sierra Nevada, 4-5 airmiles n. of Paradise, and w. of upper Paradise Pines. Turn w. off Skyway Road on Nimshew Road and take the s. turn on Centerville Road (on older maps Humbug Road), ca. 1.4 miles s. of this junction. Close to rd. UTM: 10617204E 4409342N. 620 Comment
  UC1564726  Polemonium occidentale subsp. occidentale V. Oswald and L. Ahart 1989-7-21 3871 Butte ca 1 mi w Jonesville (near the junction of Willow and Colby Creeks on the n side of Humbold Road); w of Jonesville 1490 Comment
  UC600676  Polemonium pulcherrimum E. B. Copeland July, 1930 Butte Big Summit Jonesville, Big Summit 2200 Comment
  CHSC27054  Polycarpon tetraphyllum Lowell Ahart 1978-6-2 1751 Butte Peter Ahart Ranch, Honcut. Along the edge of North Honcut Creek. 50 Comment
  CHSC37555  Polygala cornuta T. B. Devine 1977-7-24 437 Butte Beside Humbug Road near P.G. and E. ditch about 3/4 mi N of DeSabla. 853 Comment
  RSA280329  Polygonum alpinum Lyman Benson 1932-7-28 3972 Butte First summit, Oroville-Quincy. Sierra Nevada Range, Feather River watershed. 1829 Comment
  CHSC46195  Polygonum aviculare L. P. Janeway; C. A. Janeway 1986-10-5 1913 Butte Along Pine Creek at Cana Hwy. Gravel bar along the creek. 48 Comment
  CHSC74694  Polygonum bidwelliae B. Castro 1998-6-13 790 E Butte Ca 5.5 air mi SE of Town of Paradise, directly opposite County Landfill, at edge of N side of unnamed canyon just S of Neal Road, under transmission lines. 128 Comment
  CHSC88076  Polygonum bidwelliae R. D. Fischer 2004-6-12 161 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located on ridge above Humboldt Trail and just w. of Hwy 32. 399 Comment
  SEINET10970707  Polygonum bidwelliae Lowell Ahart 1984-5-7 Ahart 4593 Butte T22N R4E sec 31. Ca. 0.5 mi N of Kunkle Reservoir, along Kunkle Creek, ca. 2 mi S of Paradise, E side of Pentz-Magalia Hwy. Foothill Woodland; 600 m. 600 Comment
  POM196100  Polygonum bistortoides E. B. Copeland 1929-7-20 s.n. Butte Jonesville. 1550 Comment
  RSA781349  Polygonum bolanderi Anna Kostikova, Glenn Litsios, Sarah Burgy 2010-7-1 148 Butte Humboldt road. Comment
  UC203866  Polygonum douglasii subsp. douglasii A. A. Heller 1914-7-23 11603 Butte woods about Chico Meadows 1219 Comment
  CHSC11916  Polygonum douglasii subsp. spergulariiforme E. B. Copeland 1931-7-3 632 Butte Jonesville. Dry openings in Colby Canyon. 1550 Comment
  UC1509633  Polygonum persicaria L. Ahart 1982-10-6 3845 Butte ca 3 mi ne Hocut; Peter Ahart Ranch, North Honcut Creek 50 Comment
  UC726284  Polygonum phytolaccifolium A. A. Heller 1938-7-20 15278 Butte Chaparral; banks of streamlet 1524 Comment
  CAS-BOT-BC419895  Polygonum polygaloides subsp. kelloggii A. A. Heller 1914-6-22 11490 Butte Sierra Nevada at Chico Meadows 1219 Comment
  CHSC44134  Polygonum shastense V. Oswald; L. Ahart 1988-7-29 3656 Butte Ca. 5 mi (air) se of Jonesville on the ridge running eastwards from the peak of Snow Mtn. Locally common in loose, gravelly soil on a scree slope somewhat below the n edge of the ridge. 2097 Comment
  HSC72956  Polygonum spergulariiforme M. S. Taylor 1980-9-19 3338 Butte About 100 ft. S of Coulelenc Rd, about 500 ft. E of it's Jct. with the Skyway, Magalia 610 Comment
  CAS-BOT-BC71861  Polypodium californicum Ellen Deehan 1975-4-22 20 Butte S side of Big Chico Creek, opposite Chico Municipal Golf Course, Chico 60 Comment
  CAS-BOT-BC71867  Polypodium californicum Lowell Ahart 1980-3-26 2065 Butte Near Hurleton 600 Comment
  CHSC3887  Polypodium calirhiza Gerry Carrauthers 1966-3-7 79 Butte Honeyrun Rd. above old Honeyrun Bridge. Ca. 5 mi. N. W. of city of Paradise. Comment
  CHSC60943  Polypodium calirhiza Lowell Ahart 1993-7-6 7061 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC90096  Polypodium calirhiza Charlie Crannell 1991-4-23 5 Butte 50 ft south of where Honey Run Road crosses Butte Creek. In gully. 103 Comment
  JEPS116071  Polypogon interruptus Lowell Ahart 2009-5-30 15786 Butte On wet soil, along a small seep, at the base of a large rock, northwest of a broad open drainage in oak woodland, about 150 yards northwest of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) west of Highway 32, about 1 266 Comment
  RSA715468  Polypogon interruptus L. Ahart 2005-5-2 11779 Butte East side of the Sacramento River, northwest of Parrott landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 26 Comment
  JEPS93847  Polypogon monspeliensis Lowell Ahart 1998-6-9 7991 Butte about 7 air mi n of Oroville (about 200 yards sw of the Ione oak tree, w of the cow chute along Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 396 Comment
  UCD136477  Polystichum californicum G. F. Hrusa 1997-5-29 13794 Butte Sierra Nevada, Plumas National Forest. Immediately above Sucker Creek, 1.5 miles SSE of Feather Falls. 720 Comment
  CHSC30856  Polystichum imbricans L. Ahart 1980-9-10 2633 Butte Ca. 1 mi ne of Millsap Bar, ca. 25 mi ne of Oroville. 900 Comment
  CDA15360  Polystichum imbricans subsp. curtum G. F. Hrusa 1997-5-29 13808 Butte Sierra Nevada; Slopes on N side of Sucker Run Creek, ~1.5 mi. SSE of Feather Falls townsite. Comment
  UC1609404  Polystichum imbricans subsp. imbricans Lowell Ahart 1993-6-20 6994 Butte ca. 1 air mi nw of Lost Creek Reservoir Dam; Jackass Flat, Mooreville Ridge 1158 Comment
  UC600570  Polystichum imbricans subsp. imbricans E. B. Copeland 1931-6-10 Butte ridge w of North Willow Creek Jonesville 1650 Comment
  CHSC28001  Polystichum munitum M. S. Taylor 1978-7-21 1799 Butte On se corner of Lake Madrone, at jct with Oroville-Quincy 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
  CAS-BOT-BC102692  Populus tremuloides Lowell Ahart 1986-8-15 5384 Butte south of the dirt road, about 1/2 miles south-west of Bald Mountain, about 4 1/2 miles north-east of Stirling City 1615 Comment
  CHSC48013  Porterella carnosula Vernon Oswald; Lowell Ahart 1987-7-1 3068 Butte Near the 'Lily Pond' located ca. 0.6 mi (air) w of Butte Creek House and 0.25 mi s of Humbug Rd., ca. 2.75 mi (air) se of Jonesville. 1813 Comment
  CHSC35962  Potamogeton crispus M. S. Taylor 1982-5-22 4496 Butte Graylodge Waterfowl Refuge, in slough, at end of West Liberty Rd, ca. 112 mi sw of Gridley. 19 Comment
  CAS-BOT-BC452107  Potamogeton crispus M. S. Taylor 1979-10-2 2216 Butte On e bank of Sacramento River at Chico Landing, ca. 5 mi w of Chico. 30 Comment
  POM219383  Potamogeton gramineus H. F. Copeland 1930-7-29 1536 Butte Jonesville 1829 Comment
  CHSC34127  Potamogeton natans L. Ahart 1981-9-21 3198 Butte Along French Creek, ca. 100 m w of where the road crosses French Creek, ca. 1 mi w of the Sly Creek Reservoir. In a pond above the swamp. 1300 Comment
  CHSC45740  Potentilla glandulosa subsp. ashlandica L. P. Janeway 1987-6-19 2224 Butte Along Sly Cr at crossing of rd to SE side of Sly Cr Reservoir, 2.1 mi from the Challenge-LaPorte Rd. Cyn bottom near the cr. 1097 Comment
  CHSC27565  Potentilla glandulosa subsp. glandulosa Robert Schlising 1978-5-17 3257 Butte Magalia; serpentine outcrop just S of Magalia Reservoir and crossed by S. T. RR and Coutelenc Road. 670 Comment
  SEINET9798146 Image available Proboscidea louisianica Richard Carter 2006-7-30 Butte N Chico, 0.3 mi N jct. Nord Hwy and Esplanade, between Esplanade and Hwy CA 99 Comment
  UC204597  Proboscidea louisianica subsp. louisianica W. C. Morgan 1918-9-2 Butte Chico Comment
  SFV5828  Prunella vulgaris var. lanceolata M. L. Vincent 1968-6-5 773 Butte 1 mile south of Cherokee on road to Oroville. Roadside at old Campbell Ranch. 410 Comment
  CHSC110117  Prunus cerasifera L. P. Janeway 2012-2-28 10788 Butte Sacramento Valley. City of Chico; semi-natural riparian strip be-tween Big Chico Creek and Vallombrosa Way just southwest of One Mile Recreation Area; northwest side of the creek. Next to the road. 62 Comment
  CAS-BOT-BC159924  Prunus emarginata Brandegee 1892-9-29 s.n. Butte Jonesville Comment
  CAS-BOT-BC159928  Prunus emarginata F. N. Bassett 1923-6-16 s.n. Butte Jonesville Comment
  CHSC26698  Prunus emarginata M. S. Taylor; M. Hayes, R. Schlising 1977-8-17 1474 Butte On s side of Old Humboldt Rd, ca. 3 mi e of its jct with Scotts John Rd, n of Jonesville. 1828 Comment
  POM219500  Prunus emarginata H. F. Copeland 1928-8-18 125 Butte Neighborhood of Jonesville 1524 Comment
  UC1713768  Prunus emarginata E. B. Copeland June, 1931 Butte Jonesville 1550 Comment
  CHSC1586  Prunus virginiana var. demissa M. Davidson 1929-2-24 Butte Butte Creek. Comment
  CAS-BOT-BC357236  Pseudognaphalium microcephalum A. A. Heller 1916-9-23 12659 Butte Sierra foothills near Forest Ranch Comment
  CHSC25290  Pseudognaphalium thermale M. S. Taylor 1977-7-15 1419 Butte Along w branch of Feather River ca. 1 mi n of Magalia, ca. 1 mi e of the Skyway. 677 Comment
  CHSC32154  Pseudotsuga menziesii var. menziesii L. Ahart 1975-4-1 736 Butte Along edge of rd; ca. 2 mi s of Ponderosa Dam. 396 Comment
  CHSC103937  Psilocarphus brevissimus var. brevissimus Lowell Ahart 2010-5-22 16723 A Butte North of the road, about 100 yards west of the fence, about 1/4 mile east of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 387 Comment
  CHSC48190  Psilocarphus brevissimus var. brevissimus Vernon Oswald 1983-5-11 465 Butte Upper Bidwell Park, Chico, along the n shore of Horseshoe Lake. 100 Comment
  CHSC60960  Psilocarphus brevissimus var. brevissimus Lowell Ahart 1993-5-10 6933 Butte Peter Ahart Ranch, about 3/4 mile north and 2 1/4 miles east of Honcut, about 12 miles south-east of Oroville. 36 Comment
  CAS-BOT-BC361739  Psilocarphus brevissimus var. brevissimus A. A. Heller 1914-4-24 11315 Butte Chico-Oroville road 7-8 miles from Chico Comment
  CHSC103710  Psilocarphus oregonus Lowell Ahart 2010-5-22 16721 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. 387 Comment
  SEINET10475180  Psilocarphus oregonus Mary Susan Taylor 1979-5-6 Taylor 2003 Butte Peter & Lowel Ahart Ranch, Honcut; Valley Grassland. Comment
  CHSC113389  Psilocarphus tenellus Lowell Ahart 2014-7-2 19545 Butte Depression on both sides of the poor road, east of cow corral, about 200 yards north of the County Road, about one mile west of the intersection of County Road and Lumpkin Road, about 7 miles northeast of Feather Falls. 1281 Comment
  UC1609233  Psilocarphus tenellus Lowell Ahart 1993-7-6 7049 Butte about 1/4 mi w Lost Creek Reservoir (s side of dirt rd) 1036 Comment
  CHSC48672  Pterospora andromedea Vernon Oswald 1983-7-6 811 Butte Near Calif. Hwy. 32, 11.7 mi n-e of Forest Ranch. 1158 Comment
  CHSC60976  Pterospora andromedea Lowell Ahart 1993-6-26 7026 Butte On the west side of the dirt road, Mooreville Ridge, about 1 mile west of the Lost Creek's Reservoir. 1188 Comment
  POM132116  Pterospora andromedea Kate Conger 1907-1 s.n. Butte Brush Creek. Comment
  CHSC59122  Pterostegia drymarioides L. P. Janeway; B. Castro 1992-5-9 4164 Butte Unnamed canyon on southeast side of Neal Road opposite the Butte County Land Fill; ca 1 1/2 mi northeast of Hwy 99. At base of rocks on southeast-facing slope. 89 Comment
  JEPS119779  Pyracantha koidzumii Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18020 Butte South of Vallombrosa Avenue, about 1/8 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  CAS-BOT-BC462849  Pyrola asarifolia E. B. Copeland 1931-7-1 670 Butte Jonesville 1500 Comment
  SEINET178410  Pyrola asarifolia subsp. asarifolia E. B. Copeland 1931-7-1 670 Butte Jonesville 1500 Comment
  CHSC51872  Pyrola picta L. P. Janeway; R. A. Schlising, B. Castro 1988-7-30 3140 Butte Ridge SE trending from Snow Mtn. 2103 Comment
  UC127749  Pyrola picta Miss Kate Conger Butte Brush Creek Comment
  UC177571  Pyrola picta H. M. Hall 1914-7-23 9778 Butte near Jonesville 1737 Comment
  RSA0083380  Pyrola picta H. F. Copeland 1930-7-29 435 Butte Jonesville. 1600 Comment
  UC2026861  Pyrus kawakamii Lowell Ahart, Susan Bazell, Josephine Guardino, Wes Dempsey 2012-6-28 18230 Butte On the north side of Sycamore Pool, Lower Bidwell Park, Chico. Comment
  CAS-BOT-BC45811  Quercus H. F. Copeland 1920-8-26 177 Butte near Jonesville 1219 Comment
  CHSC97778  Quercus berberidifolia Lowell Ahart 2007-11-3 14551 Butte West of the high water line of Lake Oroville, about 1/2 mile east of the Power House below Kunckle Reservoir, about one mile north of the Lime Saddle Campground, about 5 miles (air) southeast of Paradise. 322 Comment
  CAS-BOT-BC62687  Quercus chrysolepis Lowell Ahart 1981-7-7 2918 Butte About 0.5 mile west of the Oroville Forbestown Road on the Black Bart Road, west of Forbestown 700 Comment
  CAS-BOT-BC86634  Quercus douglasii Lowell Ahart 1981-4-24 2781 Butte Peter Ahart Ranch, near Honcut Creek, about 1.5 mi N and 3 mi E of Honcut 50 Comment
  CHSC77429  Quercus douglasii Tim Stofer 1997-4-22 24 Butte This tree was located at the head of the South Rim Trail off South Park Dr. in upper Bidwell Park. 76 Comment
  CAS-BOT-BC86113  Quercus dumosa A. A. Heller 1916-9-8 12649 Butte Ten mile house E of Chico Comment
  CHSC40345  Quercus durata var. durata Lowell Ahart 1985-6-30 5093 Butte 200 yards south of the road to the Forbestown Res., 100 yards south of the Forbestown Ditch, about 2 1/2 miles north-east of Forbestown. 899 Comment
  CHSC77430  Quercus lobata Tim Stofer 1997-4-24 26 Butte This tree was laocted 50 ft from the head of the South Rim Trail off South Park Dr. in upper Bidwell Park. 76 Comment
  CHSC96641  Quercus lobata Lowell Ahart 2007-3-28 13601 Butte West of North Honcut Creek, about 2 1/2 miles north and 2 2/3 miles east of Honcut, about 12 miles southeast of Oroville. 51 Comment
  SACT002720  Quercus vacciniifolia Mary Johnson 1934/08/00 Butte Showing insect galls. 1500.0 Comment
  UC478532  Quercus vacciniifolia E. B. Copeland 1930-6 626 Butte Jonesville 1500 Comment
  CHSC70902  Ranunculus alismifolius var. hartwegii Vernon Oswald 1998-4-30 8985 Butte Meadow on the north side of Humboldt Rd. just west of Scout Rd. in Butte Meadows. In a swale running along the north side of the meadow. 1325 Comment
  CHSC118580  Ranunculus arvensis L. P. Janeway; B. Castro 2017-4-22 12192 Butte Sacramento Valley. City of Chico; north side of E. 20th Street at Notre Dame Blvd, an area eventually to be developed into houses and businesses. 73 Comment
  CAS-BOT-BC378989  Ranunculus arvensis 1976-4-16 s.n. Butte Humbug Road, at Chico Comment
  JEPS103494  Ranunculus bonariensis var. trisepalus Lowell Ahart 2002-4-24 9529 Butte Vernal pools and swales, in a field, on the E side of Lone Tree Road, ca 1 1/8 miles N of Cox Lane, ca 3 miles (air) SW of Palermo, ca 7 miles (air) S of Oroville. 35 Comment
  SEINET12100195  Ranunculus californicus Unknown 3 s.n. Butte no further locality Comment
  POM268459  Ranunculus canus A. A. Heller 1926-3-31 13916 Butte 14 miles S of Chico. Comment
  CHSC3532  Ranunculus canus var. canus John Francis 1966-3-28 91 Butte Table Mt. Beside creek. Comment
  UC827668  Ranunculus canus var. canus A. A. Heller 1914-5-13 11393 Butte in a field near Nelson (type was collected in this region by Hartweg) Comment
  SD129647  Ranunculus muricatus Barbara Ertter, Lowell Ahart 1986-4-13 5888 Butte ca 2 airmiles NNE of Honcut between Oroville and Marysville, Peter Ahart Ranch, mostly sheep pasture 29 Comment
  HSC31873  Ranunculus muricatus David Johnson 1974-4-20 44 Butte Table Mtn. Comment
  POM269273  Ranunculus muricatus Lyman Benson 1935-3-27 6361 Butte 5 miles NW of Oroville, Sierra Nevada Mt Range, Sacramento river watershed. 152 Comment
  SD48507  Ranunculus occidentalis E. K. Balls 1957-5-22 22518 Butte Sw. shore, Lake Almanor, w. of Big Meadows Dam 1402 Comment
  CHSC11809  Ranunculus occidentalis var. ultramontanus E. B. Copeland 1930-6-26 642 Butte Jonesville. In meadows. 1550 Comment
  CHSC115202  Ranunculus pusillus Lowell Ahart 2015-5-5 20139 Butte Located on the bottom of a large vernal pool, about 30 yards north of Larkin Road, about 400 yards south of Larkin Road Boat Launch Area, near the Themalito Afterbay, about 1 mile southwest of Oroville Airport, about 6 miles (air) southwest of Oroville. Valley Grassland. 42 Comment
  CHSC11810  Ranunculus uncinatus E. B. Copeland 1930-6-29 641 Butte Jonesville. 1500 Comment
  SEINET10940374  Raphanus sativus Mary Susan Taylor Taylor 775 Butte Weedy or cultivated plants of Chico. 61 Comment
  RSA197844  Rhamnus ilicifolia L. S. Rose 1955-6-15 55104 Butte 6 miles SE of Paradise on Pentz Road 427 Comment
  CDA13732  Rhamnus purshiana var. purshiana G. F. Hrusa, T. D. Wilfred 1997-6-27 13910 Butte Sierra Nevada; Feather Falls/Cascade Rd. to USFS 21N22Y, 1 km. E to summit. Comment
  CAS-BOT-BC199713  Rhododendron occidentale Lowell Ahart s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CHSC79727  Rhododendron occidentale G. F. Hrusa; T. D. Wilfred 1997-5-8 13745 Butte Northern California, Sierra Nevada. Above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. [Lat./Long. on label is '39 51 N; 121 34 W']. 740 Comment
  SEINET10973030  Rhus trilobata var. malacophylla Mary Susan Taylor 1980-4-19 Taylor 2542 Butte S side of Butte Creek, on dry bluffs above the creek in Foothill Woodland, ca. 1/4 mi upstream from Honey Run Covered Bridge, ca.. 6 mi E of Chico. With J.D. Jokerst. 183 Comment
  CAS-BOT-BC111910  Rhynchospora capitellata V. Oswald; Lowell Ahart 1987-7-19 3135 Butte Ca. 0.3 mi (air) e of Bald Mt. Lookout Tower, ca. 0.3 mi ne of the spring and water tank. 1706 Comment
  SBBG17304  Ribes bracteosum M. Vincent 1962-4-15 184 Butte The Skyway, 1 mi S of Stirling City Comment
  UC725919  Ribes nevadense A. A. Heller 1939-4-26 15385 Butte at foot of the grade leading down from Stirling City Comment
  SFV1617  Ribes roezlii M. L. Vincent 1962-4-15 183 Butte Sierra Nevada 1 mile south of Stirling City on the Skyway near small stream. 975 Comment
  UC725481  Ribes roezlii A. A. Heller 1938-5-1 15057 Butte near DeSabla 853 Comment
  CAS-BOT-BC173954  Ribes viscosissimum A. A. Heller 1915-6-26 12032 Butte Summit of the Sierra Nevada above Jonesville 2133 Comment
  CHSC96233  Romulea rosea var. australis R. Fischer 2006-4-26 999 Butte Chico. Sierra Nevada foothills, adjacent Hwy. 32, below Forest Ranch in the Big Chico Creek Ecological Reserve. Plants growing at southern end of reserve along Chico Canyon Road, on the roadbed and the eastern edge. Population 1 to 1.25 miles north of Bidwell Park boundary. 10609840E, 4409919N, Nad 27. 253 Comment
  JEPS53825  Rorippa W. L. Jepson 1934-5-4 16611 Butte 1 1/2 mi s Nord (swales of Pine Creek); near Sacramento River, Pine Creek Comment
  CAS-BOT-BC74473  Rorippa curvisiliqua F. N. Bassett 1923-6-16 s.n. Butte Jonesville. Comment
  UC392242  Rorippa curvisiliqua E. B. Copeland 1929-7-29 Butte near Butte Creek House (Jonesville); , near Butte Creek House 1750 Comment
  CHSC98978  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2008-5-8 14714 Butte Below the high water line of Lake Oroville, about 100 yards south of the poor parking area, about 50 yards east of McCabe Creek, about 3/4 mile southwest of the Enterprise Bridge, about 11 miles (air) east of Oroville. 259 Comment
  CHSC113299  Rorippa curvisiliqua var. orientalis Lowell Ahart 2014-4-9 19345 Butte Bottom of a drying pond, about 100 yards west of the parking area, west end of West Liberty Road, about one mile (air) south of Colusa Highway, about 7 miles (air) southwest of Gridley. 19 Comment
  JEPS120059  Rosa Lowell Ahart 2012-6-9 18181 Butte East of the South Rim Trail, at the old homestead, about 100 yards south of Ten Mile House Road, about 5/8 mile west of Highway 32, about 9 miles (air) northeast of Chico, south part of Upper Bidwell Park. Comment
  CHSC1597  Rosa bridgesii G. Herrington 1930-5-1 Butte Paradise. 609 Comment
  UC176212  Rosa bridgesii A. A. Heller 1913-6-7 10809 Butte near Stirling 1074 Comment
  SEINET10937258  Rosa californica Mary Susan Taylor 1977-11-12 Taylor 1533 Butte Devil's Kitchen area, on S side of Upper Bidwell Park Road, Upper Bidwell Park, Chico. Foothill Woodland. Comment
  CDA42879  Rosa multiflora L. Ahart 2012-5-17 18075 Butte On the sides of a horse trail, about 20 yards north of Big Chico Creek, southwest of the southwest corner of the old walnut orchard, about 3/5 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  CHSC102517  Rosa pisocarpa Lowell Ahart 2009-5-30 15800 Butte South of a small stream, meadow, about 30 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. 209 Comment
  CHSC1590  Rosa pisocarpa subsp. ahartii A. Goekler 1928-5-25 Butte Bidwell Park. 121 Comment
  CAS-BOT-BC274230  Rostraria cristata A. A. Heller 1902-5-13 5534 Butte Grade between Clear Creek and Paradise Comment
  CHSC113535  Rotala ramosior Lowell Ahart 2014-9-23 19866 Butte Near a small drainage, on the northeast part of Horseshoe Lake, about 100 yards northeast of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. 88 Comment
  CHSC76419  Rotala ramosior Lowell Ahart 1999-10-28 8305 Butte On the west side of a large pond, large disturbed area along the east side of the Sacramento River, northwest of Parrott Landing, about 1mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CHSC31793  Rubus armeniacus L. Ahart 1976-5-21 1116 Butte Along the edge of North Honcut Creek, Peter Ahart Ranch, Honcut. 45 Comment
  CHSC45822  Rubus armeniacus L. P. Janeway 1987-6-5 2150 Butte Along Peavine Cr near mouth of Coon Cr and where the Peavine Cr rd crosses. 746 Comment
  CAS-BOT-BC156607  Rubus bifrons Lowell Ahart 1987-6-9 5736 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 274 Comment
  CDA3944  Rubus laciniatus L. Ahart 2000-7-11 8574 Butte On the north side of Lumpkin Ridge Road, upper west branch of Know-nothing Creek, about 1 mile southwest of the intersection of Lumpkin Ridge Road, road to Fall River, and the County Road, about 4 miles (air) northeast of Feather Falls. Comment
  CHSC37064  Rubus laciniatus L. Ahart 1982-9-29 3834 Butte Along the edge of rd and near Pinkard Creek, ca. 0.1 mi n of Lost Creek Reservoir Dam, ca. 2.1 mi nw of Strawberry Valley. 1100 Comment
  SEINET10483574  Rubus laciniatus Mary Susan Taylor 1980-2-17 Taylor 2362 Butte T20N R6E ne sec 5. Along a dirt road in Yellow Pine Forest, ca. 1/4 mi SW of Lower Forbestown Road, ca. 3 mi W of Forbestown. 396 Comment
  UC481513  Rubus parviflorus H. F. Copeland 1930-8-26 1328 Butte above hotel (Jonesville); Jonesville Comment
  POM140514  Rubus parviflorus var. bifarius J. D. Culbertson 1904-9-21 4684 Butte Comerse Basin Comment
  CAS-BOT-BC158768  Rubus ursinus Lowell Ahart 1987-4-30 5489 Butte On the banks of North Honcut Creek, about 2 1/2 miles north and 3 miles east of Honcut, about 12 miles southeast of Oroville 67 Comment
  CHSC113309  Rubus ursinus Lowell Ahart 2014-4-16 19365 Butte On the sides but near the top of a large canal, about 100 yards north of East Gridley Road, on the west side of the Feather River, about 2 miles east of Gridley. 29 Comment
  CHSC38148  Rubus ursinus J. D. Jokerst 1983-5-12 1760 Butte Table Mountain. Slope of the first creek canyon north of Cherokee Rd. where it intersects the east edge of the mesa. Comment
  UC1586477  Rudbeckia occidentalis Vernon H. Oswald and Lowell Ahart 1991-7-15 4739 Butte 5.75 mi (air) ne of, just upstream from the bridge Brush Creek; Forest Rd 23N60, Jordan Creek-Marble Creek Rd, Oroville-Quin 1051 Comment
  UC639093  Rudbeckia occidentalis E. B. Copeland 1939-8-7 Butte Jonesville Comment
  CHSC50800  Rudbeckia occidentalis var. occidentalis Vernon Oswald; Lowell Ahart 1990-7-31 4421 Butte Meadow at the headwaters of Concow Creek, ca. 4 mi north of Concow. 1097 Comment
  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
  RSA0035821  Rumex acetosella Lowell A. Ahart 2008-6-13 14831 Butte About 5 yards north of Oregon Gulch, about 50 yards west of the road culvert across Oregon Gulch, bottom of an old gold mined area, about 150 yards south of the cemetery, about 10 miles (air) northeast of Oroville. 305 Comment
  SEINET10904511  Rumex conglomeratus Mary Susan Taylor 1975-6-22 Taylor 788 Butte California State University, Chico, campus. 61 Comment
  SEINET10937567  Rumex crispus Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4124 Butte T20N R8E ne sec 9. Along Ponderosa Way (Big Ridge Rd), ca. 2 mi se of the jct with Oroville-Quincy Hwy, ca. 15 mi ne of Oroville. Foothill Woodland; 500 m. 500 Comment
  CAS-BOT-BC433477  Rumex dentatus M. S. Taylor 1982-5-22 4504 Butte Graylodge [Gray Lodge] Waterfowl Refuge, in vicinity of parking lot 6, on Rutherford Rd, ca. 1/2 mi e of its jct with Pennington Rd, ca. 12 mi sw of Gridley. 21 Comment
  CAS-BOT-BC434070  Rumex transitorius A. A. Heller 1914-5-13 11396 Butte Along Butte Creek between Durham and Nelson 53 Comment
  UCD77982  Rupertia hallii Robert E. Preston 2003-7-17 2161 Butte Ca. 1 mi SW of Butte Meadows, along both sides of The Skyway 1447 Comment
  SEINET10530982  Sabina californica A. Arthur Heller 1939-12-10 Heller 15486 Butte Neal Road 3 km above the junction with the Oroville road. 150 Comment
  CHSC31547  Sagina apetala L. Ahart 1974-4-11 392 Butte Peter Ahart Ranch, Honcut. 45 Comment
  JEPS114725  Sagina decumbens subsp. occidentalis Lowell Ahart 2008-5-8 14710 Butte Below the high water line of Lake Oroville, about 100 yards south of the poor parking area, about 50 yards east of McCabe Creek, about 3/4 mile southwest of the Enterprise Bridge, about 11 miles (air) east of Oroville 259 Comment
  UC1141999  Sagina saginoides E. B. Copeland 1929-7-16 Butte Jonesville 1550 Comment
  UC1212529  Sagina saginoides H. F. Copeland 1932-6-28 Butte vicinity of Jonesville (Lassen Nat'l Forest); Lassen Nat'l Forest Comment
  UC1586512  Sagittaria latifolia Vernon H. Oswald and Lowell Ahart 1991-8-28 4855 Butte gravel road 0.5 mi s of Richvale East Rd. 0.25 mi w of Hwy 99 and the Thermalito Afterbay (on the n boundary of the Richvale Vernal Pools); n boundary of the Richvale Vernal Pools 33 Comment
  CHSC2052  Sagittaria montevidensis subsp. calycina D. Bower 1953-7-23 Butte 1A Llano Seco. 30 Comment
  CAS-BOT-BC267086  Sagittaria sanfordii Herbert L. Mason 1946-8-8 13001 Butte Butte Sink. West Gridley road, 1 mile W of Gridley - Pennington highway Comment
  SEINET10938868  Sagittaria sanfordii Mary Susan Taylor 1978-5-7 Taylor 1606 Butte In and around Richvale vernal pool area, ca. 20 mi S of Chico, on W side of Hwy 99; Valley Grassland. 30 Comment
  RSA715571  Salix exigua L. Ahart 2005-4-14 11709 Butte E of the railroad tracks. N of Spruce St. Gridley. 28 Comment
  CHSC38667  Salix exigua var. hindsiana Vernon Oswald 1983-5-25 551 Butte Upper Bidwell Park, Chico, 400 ft n of Upper Park Rd at Diversion Dam. 134 Comment
  JEPS119591  Salix exigua var. hindsiana Lowell Ahart 2012-4-17 17884 Butte About 200 yards southeast of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. Comment
  CAS-BOT-BC107966  Salix geyeriana H. F. Copeland 1920-5-21 s.n. Butte Jonesville 1219 Comment
  SD926  Salix geyeriana E. B. Copeland 1931-6-10 Butte Jonesville, in meadows by Butte Creek 1500 Comment
  HSC102781  Salix gooddingii L. Ahart 2012-4-20 17893 Butte About 9 air miles NE of Chico, ~0.6 mi. west of Hwy. 32; ~100 yds. south of the intersection of South Rim Trail and Ten Mile House Road, ~50 yds. SW of table at old homestead; on east side of dam, east of South Rim Trail. 259 Comment
  CHSC8627  Salix laevigata E. Smith 1969-10-4 Butte Bidwell Park, 3 mi E Chico. Comment
  JEPS107338  Salix lasiandra var. lasiandra Lowell Ahart 2005-4-2 11695 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
  CHSC108853  Salix lasiolepis Lowell Ahart 2012-3-9 17773 Butte Middle of North Honcut Crek, 30 yards east of the floodgate, Peter Ahart Ranch, about 1 mile north and 2 -1/2 miles east of Honcut, about 12 miles southeast of Oroville. 39 Comment
  CAS-BOT-BC129577  Salix lasiolepis var. lasiolepis Ira L. Wiggins 1925-1-31 1377 Butte Bank of Sandy Gulch Creek at junction with Chico Creek, 2 miles below Chico Comment
  RSA503334  Salix lasiolepis var. lasiolepis J. T. Howell, Gordon H. True 1967-5-9 42239 Butte NW side of Feather River Canyon near Pulga Bridge. Comment
  LA208857  Salix lemmonii E. B. Copeland; 1931-6-11 620 a Butte Jonesville, Kirby's Meadow 1750.0 Comment
  SD925  Salix lemmonii E. B. Copeland 1931-6-11 620 a Butte Jonesville; Kirby's Meadow 1750 Comment
  CHSC42545  Salix melanopsis Lowell Ahart 1987-4-30 5491 Butte North Honcut Creek, about 2 1/2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 67 Comment
  POM166819  Salix melanopsis E. B. Copeland 1903-7-27 3491 Butte Chico. Butte Creek. Comment
  CHSC13717  Salsola tragus M. S. Taylor 1974-10-11 332 Butte Abundant in weed field, ca. 50 ft e of River Rd, opposite washout on Sacramento River, ca. 10 mi w of Chico. Comment
  RSA21537  Salvia sonomensis Carl B. Wolf 1937-5-17 8723 Butte Northern Sierra Nevada. Road from De Sabla to Humboldt Road, 2.2 mi. W. of Big Butte Creek 762 Comment
  UC1124863  Salvia sonomensis H. A. Jensen 1933-12-15 368 Butte 1 mi sw Brownsville; Smartsville Quad. 609 Comment
  CHSC27253  Sambucus mexicana P. Moyer 1972-5-7 195 Butte N bank Chico Ck. By L.S. Bridge. CSUC campus. 60 Comment
  JEPS119612  Sanicula bipinnata Lowell Ahart 2012-4-9 17826 Butte About 20 yards southeast of Big Chico Creek, on the northwest side of South Rim Trail, south part of Upper Bidwell Park, about 3/4 mile east of the power lines, about 1 3/4 miles (air) northeast of Chico. Comment
  SEINET10873886  Sanicula bipinnata Mary Susan Taylor 1980-3-1 Taylor 2324 Butte T21N R2E se 1/4 sec 15 and ne 1/4 sec 22. Hamlin Canyon quad. West end of Chico City Dump, on N side of Neal Rd, ca. 1 mi E of Hwy 99, ca. 7 mi S of Chico. 76 Comment
  CHSC10638  Sanicula bipinnatifida Lowell Ahart 1965-4-11 Butte Ahart Ranch, Honcut. 60 Comment
  CHSC90036  Sanicula bipinnatifida Peggy Fain 1991-4-6 15 Butte S. side of Richardson Springs Road ca. 3 km. from Cohasset Highway (just past first bridge). 152 Comment
  CHSC115282  Sanicula bipinnatifida var. flava Lowell Ahart 2015-4-30 20118 Butte About 1/4 miles south of Forbestown Reservoir Road, about 2 1/2 miles (air) northeast of Forbestown. 890 Comment
  SEINET10454658  Sanicula crassicaulis Mary Susan Taylor 1979-3-31 Taylor 1971 Butte Junction of Pentz-Magalia Hwy and Pentz Road, ca. 1/4 mi W of Hwy 70, ca. 22 mi N of Oroville; Valley Grassland. 198 Comment
  SEINET10454659  Sanicula crassicaulis Mary Susan Taylor 1980-4-18 Taylor 2514 Butte W side of Humbug Road, ca. 1 mi S of Nimshew. With J.D. Jokerst. 610 Comment
  UC875484  Sanicula graveolens A. A. Heller 1917-7-29 12856 Butte summit above Jonesville 2133 Comment
  CHSC118584  Sanicula tuberosa L. P. Janeway; Emily doe, Cynthia Baricevic 2017-4-27 12193 Butte Northern High Sierra Nevada. Plumas National Forest; top of west-facing serpentine outcropping above Little Butte Creek 0.4 km south of Paradise Lake dam. 762 Comment
  CHSC42669  Sanicula tuberosa Vernon Oswald 1985-6-17 1841 Butte Beside a logging road 0.1 mi e of the trailhead to Feather Falls. 768 Comment
  UC1532341  Sanicula tuberosa Vernon Oswald 1986-6-29 1988 Butte Rim Rd (Ponderosa Way) 3 mi N of Jarbo Gap on Hwy 70 868 Comment
  UC566791  Sanicula tuberosa Herbert L. Mason 1927-5-11 3727 Butte vicinity of Dobbins 457 Comment
  CHSC43659  Sapium sebiferum Vernon Oswald 1987-7-8 3098 Butte Butte Creek Reserve, on the north side of Butte Creek east of the Skyway, east of Chico. On the edge of the creek. 73 Comment
  CAS-BOT-BC6054  Saxifraga californica Amos Arthur Heller 1914-3-19 11214 Butte Canyon of Big Chico creek 76 Comment
  SEINET10483042  Saxifraga californica Mary Susan Taylor, K. Tharp 1983-3-12 Taylor 5235 Butte T22N R2E nw sec 27. Chico quad. Along small rd off Stillson Canyon Rd (leading to Mannion property), ca. 3 mi sse of Chico. Elevation ca. 500 ft. 152 Comment
  JEPS87147  Saxifraga odontoloma Lowell Ahart 1992-7-26 6852 Butte about 1/2 mi n Carr Mine (about 2 (air) mi s of Snow Mountain, edges of a small stream); s of Snow Mountain, n of the Carr Mine 1798 Comment
  CHSC29015  Scandix pecten-veneris M. S. Taylor; J. D. Jokerst 1980-4-4 2461 Butte On w side of La Porte Rd, ca. 2 mi n of Bangor. 335 Comment
  CHSC39231  Scandix pecten-veneris M. S. Taylor; K. Tharp 1983-3-11 5225 Butte At jct of Bell Ranch Rd and Oroville-Quincy Hwy (162), ca. 1 mi sw of Berry Canyon School, s of Lake Madrone. Ca. 8 air mi ne of Oroville. Comment
  POM304447A  Scandix pecten-veneris Barbara Ertter, Jeffrey L. Strachan, L. Ahart 1980-5-6 3280 Butte Peter Ahart Ranch ca 2.5 mi NNE of Honcut between Oroville and Marysville 30 Comment
  CAS-BOT-BC111369  Schoenoplectus acutus var. occidentalis John Thomas Howell 1959-9-20 34651 Butte Lower foothills, eastern outskirts of Oroville 60 Comment
  CHSC34162  Schoenoplectus acutus var. occidentalis L. Ahart 1981-8-31 3061 Butte Drying bottom of Wyandotte Lake, ca. 8 mi e of Oroville. 137 Comment
  CAS-BOT-BC111649  Schoenoplectus mucronatus Lowell Ahart 1980-9-8 2592 Butte Peter Ahart Ranch, Honcut 15 Comment
  CAS-BOT-BC22404  Scirpus congdonii L. P. Janeway; Robert A. Schlising 1988-7-16 3033 Butte Large meadow at headwaters of Willow Creek; Jonesville quad (15') 1935 Comment
  CHSC41303  Scirpus diffusus S. C. Morey 1983-7-22 539 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  NY51637  Scirpus diffusus E. B. Copeland 1929-7-19 343 Butte Jonesville 1550 Comment
  RSA92160  Scirpus diffusus F. W. Peirson 1926-6-21 6769 Butte Butte Meadow, Humboldt Road. Comment
  CAS-BOT-BC110844  Scirpus microcarpus Herbert Faulkner Copeland 1920-8-1 167 Butte Tonesville meadow 1219 Comment
  CHSC56812  Scirpus microcarpus L. P. Janeway 1987-6-19 2236 Butte Along Sly Creek 2.1 mi from Challenge-LaPorte Road along the road to the southeast side of Sly Creek Reservoir. 1097 Comment
  SEINET10905684  Scirpus setaceus Lowell Ahart, Peter Ahart 1983-6-12 Ahart 4047 Butte T20N R5E n half sec 36. Ca. 1 mi s of Crystal Hill, n of Oregon Gulch, near Lake Oroville, ca. 7 mi sw of Feather Falls. Yellow Pine Forest. Comment
  CHSC87793  Scutellaria californica Paul Maslin 2004-4-6 10 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). Comment
  UC1094741  Scutellaria californica Francia Chisaki 1956-6-1 907 Butte 22 mi s of Butte-Plumas County line (on Hwy alt. #40) Comment
  CHSC112466  Scutellaria siphocampyloides Lowell Ahart 2013-5-27 18708 Butte About 150 yards east of the intersection of Forbestown Road and Black Bart Road, about 3 1/4 miles (air) southwest of Forbestown. 763 Comment
  CHSC74681  Scutellaria siphocampyloides Mary Bailey 1990-5-5 Butte North side of Nance Canyon. 152 Comment
  CHSC85424  Scutellaria siphocampyloides John Dittes 1992-5-5 469 Butte Sierra Nevada Range Foothills; ca. 2.6 air-miles southeast of Paradise Civic Center, ca. 1.8 air-miles west of West Branch Feather River, ca. 1.3 air-mile northwest of Kunkle Reservoir; slope above tributary drainage of Dry Creek, south of terminus of Libby Road. 445 Comment
  CHSC38482  Scutellaria tuberosa Vernon Oswald 1983-3-14 183 Butte Upper Bidwell Park, Chico, on the north rim ca. 1.8 mi e of the power lines. 350 Comment
  JEPS115310  Scutellaria tuberosa Lowell Ahart 2009-4-22 15582 Butte South side of Guardians Trail, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  SEINET10499233  Scutellaria tuberosa Mary Susan Taylor 1981-4-28 Taylor 3565 Butte T22N R5E nw/sw sec 21. Berry Creek quad. N side of Rd 23N28.2, in loop of the rd, ca. 1.2 mi W of Chino Creek, ca. 4 air mi E of Jarbo Gap, ca. 23 air mi NW of Oroville. On decomposed granite; 3050 ft. 930 Comment
  SEINET10593738  Secale cereale Isle 1969-5-20 ISLE 487 Butte N. Of the Lindo channel at the edge of the S. side of Manzanita Ave. just across (S. of ) the Manzanita Ave.-Lakeview Way intersection, chico, california. Comment
  CHSC456  Sedella pumila C. Merton 1929-4-18 Butte Paradise. 365 Comment
  CAS-BOT-BC415013  Sedella pumila N. Wynne; M. Peckham; J. Bamesberger 1994-3-30 06 Butte Table Mountain, Cherokee Rd., approx. two miles E of Hwy 70 Comment
  RSA126002  Sedella pumila E. K. Balls 1957-5-23 22530 Butte 3.8 miles NE of Pentz on road from Paradise. 457 Comment
  RSA256645  Sedella pumila David Johnson 1974-4-20 48 Butte Table Mt. Comment
  SEINET8249655  Sedella pumila A. Heller 1926-4-19 13923 Butte Along Chico-Oroville road, about 7 miles from Chico. Comment
  SEINET8472428  Sedella pumila A. A. Heller, H. E. Brown 1902-5-7 5486 Butte Berry Canyon , near Clear Creek. Comment
  CHSC33872  Sedum albomarginatum M. S. Taylor 1981-5-11 3687 Butte N side of Feather River Hwy 70, at jct with Pulga ... Field redacted by CHSC, contact the data manager for more information 487 Comment
  JEPS26934  Sedum albomarginatum P. C. Hutchison 1961-6-9 2101 Butte w side Feather River Canyon (at Pulga Bridge, on steep serpentine cliffs); w side Feather River Canyon at Pulga Bridge Comment
  RSA0081478  Sedum spathulifolium C. C. Bruce 1897-05 1778 Butte Butte Creek. Comment
  CHSC48043  Selaginella hansenii L. P. Janeway 1984-10-8 1179 Butte Along Hwy 70 above North Fork Feather River. 609 Comment
  HSC66337  Selaginella hansenii M. S. Taylor 1980-3-8 2370 Butte Shady train 100 ft. SW of Pulga Bridge over Hwy. 70, 28 mi. NE of Oroville 488 Comment
  SEINET10470981  Selaginella hansenii Lawrence P. Janeway 1984-10-8 Janeway 1179 Butte Pulga SW quad. T22N R5E SW 1/4 of sec. 7, 2000 feet. Along Hwy 70 above North Fork Feather River. On steep S-facing serpentine outcrop; open. 610 Comment
  SEINET10530440  Selaginella hansenii Mary Susan Taylor 1981-3-18 Taylor 3427 Butte T23N R4E north center third sec 30 Paradise SE quad; from bridge crossing West ranch Feather River, ca. 1/4-1/2 mi e and s along Ponderosa Way (Jordan Hill Rd), e of Magalia; 1600-1900 ft. 488 Comment
  HSC72949  Selaginella wallacei M. S. Taylor 1980-9-27 3345 Butte S side of Hwy. 70 at Butte-Plumas Co. line 549 Comment
  HSC78628  Selaginella wallacei L. P. Janeway 1984-10-8 1181 Butte Along Hwy. 70, along N fork of Feather River 488 Comment
  SFV11419  Senecio aronicoides M. L. Vincent 1967-6-25 676 Butte 0.25 miles west of Paskenta Ranger Station._x000B_[NOTE: this locality is messed up. Paskenta Ranger Station is in Tehama County and habitat there doesn't match pine trees and meadow mentioned on labels and in Vincent notebook.] Comment
  CAS-BOT-BC363994  Senecio integerrimus var. major Lowell Ahart 1987-5-22 5670 Butte About 1/8 mile south-east of Lumpkin Ridge Road, about 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls 1280 Comment
  CHSC49827  Senecio integerrimus var. major Vernon Oswald; Lowell Ahart 1990-4-9 4157 Butte Trail to Fall River near its junction with Feather Falls Trail, near the Overlook. All along the Feather Falls Trail. 621 Comment
  CAS-BOT-BC363991  Senecio integerrimus var. major Clarence R. Quick 1954-6-19 54 -03 Butte Big Bar Mt. ridge east of Pulga Comment
  CDA34189  Senecio sylvaticus L. P. Janeway 2010-6-19 10030 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. Comment
  CAS-BOT-BC364272  Senecio triangularis A. A. Heller 1914-7-23 11591 Butte In Chico Meadows 1219 Comment
  CHSC41316  Senecio triangularis S. C. Morey 1983-7-23 597 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  CHSC71634  Senecio triangularis Vernon H. Oswald; Lowell Ahart 1998-8-11 9464 Butte USFS 28N35 at a branch of Wildcat Creek ca. 1 mi north of Four Trees-Coyote Gap Rd. Along the edge of the creek. 1396 Comment
  POM219171  Senecio triangularis H. F. Copeland 1928-8-17 251 Butte Jonesville. Comment
  JEPS115314  Senecio vulgaris Lowell Ahart 2009-4-17 15539 Butte 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
  CHSC20121  Sequoiadendron giganteum M. S. Taylor 1975-5-6 562 Butte California State University, Chico. Ca. 60 m s of Holt Hall, ca. 10 m n of Big Chico Creek. 60 Comment
Read comments
Jul 25 2018
  CHSC28431  Sericocarpus oregonensis M. S. Taylor 1979-9-28 2196 Butte Butte county line at Hwy 70, between boundary and Arch Rock tunnel. 487 Comment
  CHSC48129  Sericocarpus oregonensis Vernon H. Oswald 1985-8-15 1930 Butte Skyway 0.2 mi S of Inskeep. 1463 Comment
  SEINET10507784  Setaria sphacelata Lowell Ahart 1985-10-12 Ahart 5199 Butte At the end of Nelson Bar Road, about 1 mile south of Kunkle Reservoir, about 3 miles south of Paradise. Comment
  CHSC47483  Sherardia arvensis Lowell Ahart 1974-4-7 356 Butte About 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC70854  Sherardia arvensis Lowell Ahart 1998-4-29 7955 Butte Northeast of the large parking area on North Table Mountain, on the east side of Cherokee Road, about 7 miles north of Oroville. 426 Comment
  RSA325096  Sherardia arvensis M. S. Taylor 1981-5-1 3585 Butte E side of Hwy 70. Ca 4 air miles NW of Oroville. 91 Comment
  UC1013146  Sidalcea asprella C. L. Hitchcock 1952-5-28 19537 Butte 6 mi w Forbestown (Oroville-Forbestown Road) Comment
  CHSC34964  Sidalcea diploscypha R. Schlising; P. Minton 1981-5-3 4043 Butte At north border of county. W of Singer Creek and E of Cana/Pine Creek Road. 57 Comment
  JEPS118038  Sidalcea diploscypha Lowell Ahart 2011-5-27 17357 Butte On damp brown to black clay soil, about 150 yards west of the west edge (dredged area) of North Honcut Creek, about 2 1/2 north and 2 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville 65 Comment
  CHSC34952  Sidalcea gigantea R. A. Schlising; C. A. Lawler 1981-8-8 4190 Butte Near N end of Concow Reservoir. Comment
  JEPS97944  Sidalcea gigantea G. Clifton 1999-7-3 36019 Butte Pulga Comment
Read comments
Feb 9 2008
  CHSC12946  Sidalcea glaucescens K. R. Stern 1974-6-30 5776 Butte Vic. of Jones Creek at Jonesville. 1371 Comment
  SD3021  Sidalcea glaucescens E. B. Copeland 1930-7-21 Butte Jonesville. 1550 Comment
  UCR133587  Sidalcea glaucescens H. F. Copeland 1930-7-20 1335 Butte Jonesville 1524 Comment
  CHSC29407  Sidalcea hartwegii R. A. Schlising; R. Banchero 1980-6-2 3615 Butte Along Hwy 32, 6.4 mi S of center of Forest Ranch. Comment
  CHSC38551  Sidalcea hartwegii Vernon Oswald 1983-4-18 345 Butte Upper Bidwell Park, Chico, on the north slope slightly e of Horseshoe Lake. 146 Comment
  CHSC71182  Sidalcea hartwegii Lowell Ahart 1988-6-9 7992 Butte About 300 yds west of the lone oak tree, west of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CHSC95211  Sidalcea hartwegii R. D. Fischer 2004-4-25 807 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition off Hwy. 32. Collected off ridge top along Hwy 32 and the beginning of the Bloodypin Trail. 335 Comment
  RSA31852  Sidalcea hirsuta A. A. Heller 1941-5-13 16122 Butte In low ground along ditches on u.S. highway 99 E, 10 miles north of Chico. Hartweg got the type in this region in April, 1847. Comment
  CAS-BOT-BC205759  Sidalcea oregana Sally Bianco 1995-10-19 1044 Butte E side of Concow Rd. approx. 0.8 km S of Hoffman Rd. on south side of creek 760 Comment
  RSA4491  Sidalcea oregana subsp. spicata E. B. Copeland 1930-7-15 659 Butte Jonesville. Comment
  CHSC76948  Sidalcea robusta Ida Ryan 1893-5-1 Butte Little Chico Creek. Comment
  UC725680  Sidalcea robusta A. A. Heller 1940-4-28 15564 Butte opposite the Golf Links e Chico (ridge above Chico Creek); above Chico Creek, e of Chico Comment
  SEINET10537491  Silene antirrhina Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4243 Butte T22N R6E ne sec 36. Ca. 1 mi e of Milsap Bar, ca. 25 mi ne of Oroville. Yellow Pine Forest; 750 m. 750 Comment
  CAS-BOT-BC174846  Silene bernardina R. A. Schlising 1982-8-1 4362 Butte N part of county e of Inskip and near Jones Meadow 1734 Comment
  UC852813  Silene californica Helen M. Edwards 1917-6-6 Butte De Sabla Comment
  POM225855  Silene californica J. H. Morrison 1932-7-4 s.n. Butte Mountains above Durham. Comment
  CAS-BOT-BC384422  Silene coronaria Lowell Ahart 1983-7-29 4229 Butte About 1/4 mile west of Milsap Bar, about 25 miles north-east of Oroville 500 Comment
  UC185513  Silene gallica Mrs. R. M. Austin May, 1896 859 Butte Little Chico Creek Comment
  CHSC118500  Silene laciniata subsp. californica L. P. Janeway 2016-5-9 11955 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 Ponderosa Way and Road 19N19. 701 Comment
  CHSC32726  Silene laciniata subsp. californica M. S. Taylor 1981-4-8 3495 Butte Embankment at end of Dark Canyon Rd around the turnout near the restroom up from the boat ramp to West Branch Feather River, ca. 3.5 mi s of its jct with Big Bend Rds jct, ca. 5 air mi s of Jarbo Gap on Hwy 70. 304 Comment
  UC600625  Silene lemmonii E. B. Copeland 1930-7-28 Butte Jonesville Comment
  SEINET10537590  Silene lemmonii Mary Susan Taylor 1978-6-24 Taylor 1651 Butte Montane Meadow, on N side of Scotts John Road, ca. 3 mi E of its junction with Old Humboldt Road, ca. 5 mi E of Jones ville; Yellow Pine Forest. 1676 Comment
  UC600621  Silene occidentalis subsp. longistipitata H. F. Copeland 1930-7-20 Butte Jonesville 1524 Comment
  CHSC101977  Silybum marianum J. Boze 1982-5-8 439 Butte Along Eaton Road, Chico, about 1 mile from Hwy 99. Comment
  CAS-BOT-BC135398  Sisyrinchium John Thomas Howell 1962-6-15 37518 Butte Magalia - Sierra Nevada 731 Comment
  CHSC20110  Sisyrinchium bellum M. S. Taylor 1975-4-26 508 Butte Ca. 50 m ne of Kunkle Reservoir, ca. 1/4 mi e of Pentz-Magalia Hwy, ca. 1 mi s of Paradise. 609 Comment
  UC600564  Sisyrinchium bellum H. F. Copeland 1920-7-29 465 Butte Jonesville Comment
  UC600565  Sisyrinchium bellum H. F. Copeland 1930-7-24 Butte Jonesville Comment
  SEINET10971622  Sisyrinchium bellum Lowell Ahart 1983-8-16 Ahart 4313 Butte T26N R4E section 32? On dry dark soil in a small mountain meadow, near Bull Hill Rd, ca. 3.5 mi south of Butte Meadows. Yellow Pine Forest; l600 m. 1600 Comment
  SEINET12048536  Sisyrinchium bellum Unknown 1984-1 12 Butte 1.8 mi S of Concow Reservoir and .2 mi N of Deadwood Creek 457 Comment
  UC600466  Smilacina racemosa E. B. Copeland July, 1930 Butte Jonesville 1550 Comment
  SEINET3893523  Smilax californica H. F. Copeland 1929-5-4 1125 Butte Canyon of Chico Creek.; 0 Comment
  JEPS110130  Solanum americanum Lowell Ahart 2006-9-28 13377 Butte On the east side of the North Fork of the Feather River, on the west side of Highway 70, about 50 yards southwest of the Shady Rest Area south of the Arch Rock Tunnel 445 Comment
  JEPS119911  Solanum americanum Lowell Ahart 2012-10-20 18514 Butte On the north side of Big Chico Creek, south of Table 34, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  JEPS124332  Solanum americanum Lowell Ahart 2015-10-20 20562 Butte About half way of and east of One Mile Pond, about 6 miles (air) east of Biggs. Comment
  CHSC76963  Solanum parishii Ida Ryan 1893-5-1 Butte Little Chico Creek. Comment
  CHSC43779  Solanum rostratum Vernon Oswald 1986-7-23 2223 Butte Hamilton-Nord-Cana Hwy 0.5 mi n of Bennett Rd. Roadside on the edge of vernal pond. 48 Comment
  SEINET260320  Solidago californica Lowell Ahart 1988-7-24 6130 Butte Ca 1/20 mi NE of the intersection of Ponderosa Way and Lower Forbestown Rd W of Sunset Hill 732 Comment
  CHSC36965  Solidago elongata M. S. Taylor 1982-8-16 4988 Butte S end of Stirling City, along both sides of the Skyway. 1036 Comment
  CAS-BOT-BC364938  Solidago velutina subsp. californica Lowell Ahart 1982-9-12 3799 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
  CHSC48198  Solidago velutina subsp. californica Vernon Oswald 1985-9-2 1937 Butte Flea Valley--Sawmill Peak Rd. (V-line) 1.8 mi w of Flea Valley. 1066 Comment
  CHSC101157  Soliva sessilis Lowell Ahart 2009-5-15 15694 Butte In the center of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 311 Comment
  CHSC34696  Sonchus asper M. S. Taylor 1981-5-14 3713 Butte N side of Four Mile Ridge, s of Sly Creek, ca. 1.5 mi ne of Mt House on Oroville-Quincy Hwy. 853 Comment
  CAS-BOT-BC365983  Sonchus asper Lowell Ahart 1987-7-17 5829 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  CDA42873  Sonchus oleraceus L. 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. Comment
  CHSC102501  Sonchus oleraceus Lowell Ahart 2009-5-30 15791 Butte By a small rock about 50 yards south of the fence and about 120 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 269 Comment
  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
  CHSC8560  Sonchus oleraceus M. MacArthur 1968-6-12 165 Butte Ca. 50 ft. NW of Biology Stockroom in Life Science bld., Chico State College campus. 60 Comment
  JEPS115664  Sonchus oleraceus Lowell Ahart 2009-5-30 15791 Butte By a small rock about 50 yards south of the fence and about 120 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 269 Comment
  CDA43079  Sorghum halepense L. P. Janeway 2011-8-18 10662 Butte Northern High Sierra Nevada.; Plumas National Forest; top of Bloomer Hill. Comment
  CHSC38859  Sorghum halepense Vernon Oswald 1983-6-3 623 Butte Upper Bidwell Park, Chico, in Lindo Channel between Five Mile Recreation Area and the flood-control gates. 79 Comment
  CHSC4360  Sorghum halepense M. Hiller 1966-5-29 Butte In creek bed parallel to Manzanita Ave., Chico. Comment
  UCR188719  Sorghum halepense George K. Helmkamp, E. A. Helmkamp 2007-10-7 13070 Butte Northern Sacramento Valley, East Gridley Road at the west edge of the Feather River bridge 27 Comment
  SEINET10507640  Sorghum halepense Mary Susan Taylor 1979-9-28 Taylor 2203 Butte Butte County line at Hwy 70, between boundry and Arch Rock tunnel; granitic soils and dome outcrop. 488 Comment
  CHSC51954  Sparganium emersum subsp. emersum L. P. Janeway 1987-6-19 2248 Butte Mdw on Pinkard Cr between Lewis Ridge and Mooreville Ridge, 6.5 mi from the Challenge-LaPorte Rd and Travis Saddle via the rd to Golden Trout Crossing. 1082 Comment
  SEINET10487734  Spartium junceum Melvin L. Conrad, Douglas G. LeDoux; Patricia L. Kenney 1973-6-5 Conrad 7035 Butte Roadside in paradise. Corolla lemon yellow. Spanish broom. 792 Comment
  CHSC98959  Spergula arvensis subsp. arvensis Lowell Ahart 2008-5-12 14735 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
  JEPS115355  Spergularia bocconi Lowell Ahart 2009-7-3 15986 Butte On the north side of the road, 30 yards west of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 30 yards east of Cedar Grove, Lower Bidwell Park, Chico 67 Comment
  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
  CHSC50033  Spergularia rubra Lowell Ahart 1990-4-15 6461 Butte Near a small stream, 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
  CHSC105817  Sphenosciadium capitellatum Lowell Ahart 2010-9-28 17244 Butte Along the edges 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
  CAS-BOT-BC147947  Spiraea douglasii Lowell Ahart 1988-6-29 6114 Butte Along Rockefeller Road, about 1/2 mile south of the Rockefeller School, about 2 1/2 miles south-west of Big Bald Rock 762 Comment
  CHSC33639  Spiraea douglasii M. Merryman; R. Banchero 1979-9-2 31 Butte Humboldt Rd at Butte Creek, 5.3 mi ne of jct Hwy 32 and Humboldt Rd. At streamside. 1341 Comment
  UCSB63841  Spiraea douglasii Ahart, Lowell 1997-8-1 Butte Little Kimshew Creek, in Snow Meadow, about 1/4 mile east of Table Mountain; about 8 miles (air) northeast of Stirling City; Lodgepole Pine in a meadow in Red Fir Forest 1524 Comment
  CDA2510  Sporobolus indicus L. Ahart 2005-10-22 12462 Butte Daley Ranch, about 1 mile northeast of Honcut, about 13 miles south of Oroville. Comment
  JEPS115567  Stachys ajugoides var. rigida Lowell Ahart 2009-5-23 15760 Butte South of a small drainage, about 30 yards west of Guardians Trail, about 100 yards northeast of Pine Trail, Upper Bidwell Park, about 3/8 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  CHSC58909  Stellaria borealis subsp. sitchana Lowell Ahart 1992-8-2 6902 Butte On the west side of Concow Meadow, about 3 (air) miles north-east of Concow Reservoir. 1097 Comment
  CHSC46825  Stellaria crispa R. A. Schlising; P. F. Broyles 1988-7-3 4569 Butte SE of Stirling City near 'Rag Dump' area, where road crosses Fall Creek. 1158 Comment
  CHSC48275  Stellaria crispa Vernon Oswald 1987-8-10 3208 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. On the edge of a streamlet at the e end of the largest (south) lake. 1935 Comment
  CHSC61787  Stellaria crispa Lowell Ahart 1993-10-3 7268 Butte At a spring, on the south side of the west branch of Wildcat Creek, about 2 miles north-east of Coyote Gap. 1402 Comment
  SEINET11934433  Stellaria crispa L. Ahart, Ahart, P. 1984-1 Butte About 1.5 mi SE of Bald Mt., 0.75 mi W of Oak Point, about 4 mi NE of Stirling City 1500 Comment
  CHSC113383  Stellaria longipes subsp. longipes Lowell Ahart 2014-7-4 19555 A Butte On the south side of Bull Hill Road, about 2 miles south of Butte Meadows. 1341 Comment
  CAS-BOT-BC181448  Stellaria obtusa E. B. Copeland 1931-7-18 636 Butte Gravel bars on Butte Creek, Jonesville 1500 Comment
  CHSC61639  Stellaria obtusa Lowell Ahart 1993-9-13 7229 Butte On the south side of Bolt Creek, about 1 mile south-east of Butte Meadows. 1325 Comment
  UC1564733  Stellaria umbellata V. Oswald and L. Ahart 1989-7-21 3876 Butte ca 0.7 air mi se Summit Lake (ca 4.5 air mi se of Jonesville, sw branch of upper Butte Creek); Butte Creek 1828 Comment
  JEPS87514  Stephanomeria lactucina Lowell Ahart 1993-7-22 7071 Butte w side of dirt road about 1/4 mi nw Camp 18 (about 5 air mi ne of Feather Falls) 1219 Comment
  POM193087  Stephanomeria lactucina E. B. Copeland 1930-7-24 500 Butte Jonesville. 1550 Comment
  CHSC62437  Stephanomeria paniculata L. P. Janeway 1993-9-3 4579 Butte Plumas National Forest. Along dirt road to Bear Ranch Creek falls from Hwy 70; in canyon of North Fork Feather River. 487 Comment
  CAS-BOT-BC375766  Stephanomeria virgata John Thomas Howell 1959-9-20 34717 Butte Feather River Highway at West Branch bridge Comment
  SEINET10506968  Stipa Mary Susan Taylor 1978-5-6 Taylor 1576 Butte Just N of Magalia, in large serpentine area along the Skyway. 610 Comment
  SEINET10603816  Stipa cernua A. Arthur Heller 1902-5-8 Heller 5497 Butte Berry Canon ( Near Clear Creek). Comment
  SEINET10508392  Stipa lemmonii Lowell Ahart 1983-6-15 Ahart 4054 Butte Peter Ahart Ranch, ca. 2.5 mi ne of Honcut. Foothill Woodland; 50 m. Along the edges of North Honcut Creek. 50 Comment
  SEINET10508405  Stipa stillmanii Mary Susan Taylor, Lowell Ahart 1981-8-15 Taylor 4178 Butte T25N R4E sw 1/4 sw 1/4 sec. 33. Paradise NE quad. Both sides of the Skyway 1.8 mi S of Inskip. Yellow Pine Forest. 4100 ft. 1250 Comment
  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
  CHSC44382  Streptanthus polygaloides Lowell Ahart 1988-5-30 6034 Butte Along Poe Power House Road, about 1/10 mile north of the bridge across the North Fork of the Feather River, about 2 miles south-east of Jarbo Gap. 365 Comment
  HSC96689  Streptanthus polygaloides L. P. Janeway 2006-6-25 8693 Butte N High Sierra Nevada, W side of Coutolenc Rd., 150 m N of Skyway at 'Magalia Serpentine 713 Comment
  SEINET10481895  Streptanthus polygaloides Lincoln Constance 1941-5-28 Constance s.n. Butte Calyx yellow, petals white, brownish veined, crisped. Serpentine outcrop, with ceanothus, arctostaphylos, rhamnus and eriodictyon, pinus sabiniana- cupressus macnabiana- umbelularia assoc. S. Branch of the feather river at magalia, sierra nevada foothills. 488 Comment
  UCD164181  Streptanthus tortuosus N. Ivalu Cacho; Sharon Y. Strauss, Patrick J. McIntyre 2011-4-10 IC-SS 188 Butte Table Mountain. 1092 Comment
  CHSC30707  Streptanthus tortuosus var. suffrutescens M. S. Taylor 1980-5-27 2714 Butte Little Bald Rock, ca. 3 mi s of Brush Creek. 1016 Comment
  CHSC36693  Streptanthus tortuosus var. suffrutescens R. E. Preston 1982-4-25 267 Butte Cape Horn, w fork of Lake Oroville, ca. 4.5 mi se of Paradise. 426 Comment
  CDA15367  Symphoricarpos albus var. laevigatus G. F. Hrusa 1997-5-29 13797 Butte Sierra Nevada; S side of Sucker Run Creek, ~1.5 mi. SSE of Feather Falls townsite. Comment
  CHSC96798  Symphoricarpos albus var. laevigatus Lowell Ahart 2007-5-16 13889 Butte On the east side of Jordan Hill Road, about 1/10 mile northwest of the bridge across Concow Creek, about 1 1/2 miles (air) southwest of Concow Reservoir. 436 Comment
  CHSC11848  Symphyotrichum ascendens E. B. Copeland 1930-8-4 485 Butte Jonesville. 1500 Comment
  UC426982  Symphyotrichum bracteolatum E. B. Copeland 1900-1-1 Butte Jonesville, in and near springs 1500 Comment
  CHSC51351  Symphyotrichum chilense Vernon H. Oswald 1990-10-4 4455 Butte Rancho Llano Seco. Ord Ferry Rd, ca 1 mile southeast of Ord Ferry Bridge. Field between the road and the Sacramento River 30 Comment
  CAS-BOT-BC97687  Symphyotrichum chilense Lowell Ahart 1985-10-12 5197 Butte near the east side of Kunkle Reservoir, about 2 miles south of Paradise 502 Comment
  CHSC50403  Symphytum officinale Vernon Oswald 1990-6-10 4286 Butte Hwy 32 at Lomo (jct. Humboldt Rd to Butte Meadows). At the base of a bank on the west edge of the pullout on Hwy 32. 1158 Comment
  CHSC42042  Tellima grandiflora Lowell Ahart 1986-5-20 5278 Butte Near the edge of the road that goes to the Forbestown Reservoir, about 1mile south-west of the Forbestown Reservoir, about 3 1/2 miles north-east of Forbestown. 609 Comment
  UC398912  Thalictrum fendleri E. B. Copeland 1929-7-22 361 Butte Jonesville 1500 Comment
  CHSC44346  Thalictrum fendleri var. polycarpum Lowell Ahart 1988-4-6 5958 Butte Near a small stream and east of North Honcut Creek, on the Joie Osgood Ranch, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles southeast of Oroville. 60 Comment
  CAS-BOT-BC88206  Thysanocarpus curvipes A. A. Heller 1919-3-29 13095 Butte Feather River near Yankee Hill. Comment
  CHSC41134  Thysanocarpus curvipes R. J. Goedl 1976-4-20 4 Butte Ca. 6.4 mi se of Chico on Skyway, 50 yds s of Highway. Field. 213 Comment
  UC74950  Thysanocarpus curvipes Copeland 1903-4-10 3031 Butte Chico Comment
  UC857556  Thysanocarpus curvipes A. A. Heller 1915-5-25 11899 Butte Mt. Ida ranch 10 mi e Oroville; Sierra foothills 457 Comment
  CAS-BOT-BC88223  Thysanocarpus curvipes Lowell Ahart 1990-3-9 6415 Butte On the east side of Pacific Heights Road, about 3.5 miles southwest of Oroville. 33 Comment
  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
  CHSC100474  Tilia europaea Lowell Ahart; John Dittes 2008-11-14 15448 Butte On the north side of the deer pen, 10 yards east of the small storage building, about 100 yards east of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  JEPS94684  Torilis arvensis Lowell Ahart 1998-7-1 8018 Butte about 7 air mi n Oroville (margins of seep sw of lone oak tree, w of cow chute on w side of Cherokee Rd.); North Table Mountain 403 Comment
  CDA5394  Torilis arvensis T. C. Fuller 1967-6-27 16033 Butte North side of Durham Highway, 1.1 miles west of Highway 99, 0.2 mile east of Hamlin Road, Durham. 0 Comment