Search Results — 2000 specimen records retrieved (1604 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
  CAS-BOT-BC73553  Abies concolor Lowell Ahart 1984-9-26 4812 Butte South Fork of the Feather River, near the new bridge, about 1 mile north of Goldn Trout Crossing, 700 Comment
  CAS-BOT-BC77977  Abies concolor Saichi Kawahara 1968-5-5 396 Butte Innskip 1463 Comment
  SEINET10530581  Abies magnifica Mary Susan Taylor 1977-8-17 Taylor 1487 Butte Scattered in Red Fir Forest, at Humboldt Summit at Butte-Tehama County line, ca. 50-100 ft W of Old Humboldt Rd on Butte County side; with Arctostaphylos neva densis, Hackelia californica. 2134 Comment
  SEINET10479965  Abutilon theophrasti Mary Susan Taylor 1978-9-8 Taylor 1905 Butte Around rice fields, ca. 6 mi N of Chico. 61 Comment
  CAS-BOT-BC330576  Acer circinatum A. A. Heller 1919-5-17 13159 Butte Banks of the Feather river near Stirling Comment
  UC624910  Acer circinatum Fred H. Schumacher September 1934 Butte near Butte Meadows; near Butte Meadows Comment
  CHSC30934  Acer macrophyllum Leslie Steidl 1980-4-1 10 Butte .8 mi nnw of Lumpkin Rd on Craig Access Rd, on w side of road, 18 mi e of Oroville. 353 Comment
  CHSC43581  Acer macrophyllum Vernon Oswald 1987-4-27 2345 Butte Paradise Lake between the picnic Area and Doon Creek. 777 Comment
  UCD117057  Acer macrophyllum Johann Watjen 1969-5-4 36 Butte confluence of Rock Creek and Feather River North Fork, Feather River Canyon. 457 Comment
  CHSC65680  Acer negundo var. californicum Vernon H. Oswald 1996-3-22 7252 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. Sanctuary 1, SW corner of Tract 2, on the edge of a branch of Angel Slough. 30 Comment
  CHSC77292  Acer negundo var. californicum L. P. Janeway 2000-3-29 6647 Butte Sacramento Valley. In narrow riparian strip along west side of Pine Creek on south side of Hwy 32. 40 Comment
  CHSC109627  Acer saccharinum Lowell Ahart 2012-5-17 18087 Butte On the south edge of Big Chico Creek, east of the Deer Pen, between Table 12 and 13, Lower Bidwell Park, Chico. 76 Comment
  CAS-BOT-BC210633  Achnatherum lemmonii Lowell Ahart 1988-6-21 6058 Butte Along Poe Power House Road, about 3/4 mile north of the Poe Power House, about 1 1/4 miles south-east of Jarbo Gap 426 Comment
  CHSC57164  Achnatherum lemmonii J. D. Jokerst 1980-4-18 Butte Edge of Nimshew Road, 1.0 mi south of town of Nimshew. Comment
  CHSC74147  Achnatherum nelsonii subsp. dorei B. Castro 1998-6-18 791 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. 929 Comment
  CHSC49579  Achnatherum occidentale subsp. californicum Vernon Oswald 1985-7-2 1873 Butte Hwy 32 2.3 mi s of Lomo. 1133 Comment
  CDA13731  Achnatherum occidentale subsp. pubescens G. F. Hrusa, T. D. Wilfred 1997-6-27 13909 Butte Sierra Nevada; Feather Falls/Cascade Rd. to USFS 21N22Y, 1 km. E to summit. Slopes densely forested with rare granite rock outcrops & gravelly open areas. Small colony in sandy-gravelly opening. Perennial, bunching. Comment
  UC1499974  Achnatherum stillmanii Lowell Ahart 1983-8-16 4302 Butte 3 mi s near Bull Hill Road Butte Meadows 1600 Comment
  CHSC29797  Acmispon americanus var. americanus M. S. Taylor; J. D. Jokerst, R. Schlising 1980-6-14 2873 Butte Little Bald Rock, on granite dome, ca. 4 mi e of Lake Madrone. 1016 Comment
  JEPS121914  Acmispon americanus var. americanus Lowell Ahart 2014-7-10 19625 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  RSA0116257  Acmispon americanus var. americanus Lowell A. Ahart 2014-7-10 19625 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1665 Comment
  CAS-BOT-BC204849  Acmispon argophyllus var. fremontii Lowell Ahart 1984-6-8 4667 Butte Just north of the spillway at the Ponderosa Dam, about 2 miles north-west of Forbestown 370 Comment
  HSC43133  Acmispon micranthus Maralyn O'Meara 1974-4-20 290 Butte Table Mtn. 305 Comment
  CHSC116168  Acmispon nevadensis var. nevadensis Lowell Ahart 2015-6-16 20229 Butte About 4 miles (by road) northwest of Fall River Bridge, about 5 1/2 miles (air) northwest of Camp 18, about 9 miles (air) northeast of Feather Falls. 1406 Comment
  RSA0037018  Acmispon nevadensis var. nevadensis Lowell A. Ahart 2013-11-17 19269 Butte About 60 yards east of McCabe Creek, below the high water line of Lake Oroville, about 5/8 mile southwest of the Enterprise Bridge across Lake Oroville. 245 Comment
  CHSC879  Acmispon parviflorus A. Koopman 1929-4-21 Butte Near Pentz. 152 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
  CHSC45541  Aconitum columbianum var. columbianum Kirsten Tarp 1981-8-4 63 Butte NE corner of Butte County at Scotts John Creek. 1828 Comment
  CHSC52677  Aconitum columbianum var. columbianum Kirsten Tarp 1983-8-5 323 Butte Ca. 1.0 mi sw of Jonesville at Colby Creek, near stream. 1487 Comment
  CHSC11851  Adenocaulon bicolor E. B. Copeland 1930-8-9 483 Butte Jonesville. 1500 Comment
  CHSC94350  Adenocaulon bicolor Lowell Ahart 2006-7-25 13053 Butte West edge of a large meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1569 Comment
  CHSC3425  Adiantum aleuticum Judy Potter 1966-3-7 113 Butte Honey Run Road, 2.5 miles south The Skyway. Comment
  CHSC3630  Adiantum capillus-veneris John Francis 1966-2-28 56 Butte Upper Bidwell Park, in canyon across road from and 1/4 mile E. of Salmon Hole. Comment
  CHSC38242  Adiantum capillus-veneris Vernon Oswald 1982-11-6 10 Butte Bidwell Park, Chico. About 1600 ft n of Upper Park Rd. at a point 3.0 mi e of its junction with Wildwood Ave. 213 Comment
  CDA19905  Aegilops triuncialis D. Nay, R. Hill 2002-5-25 PDR 009406 Butte Northern California; Vicinity of Oroville. 0 Comment
  SEINET12290260  Agastache parvifolia Unknown 1967-1 584 Butte Chico, on the Rd to Eagle Lake Biology Station and Willow Creek 1585 Comment
  CHSC45668  Ageratina occidentalis V. Oswald; L. Ahart 1988-8-16 3693 Butte Ca. 5 mi (air) SE of Jonesville on the ridge running eastwards from the peak of Snow Mtn. 2103 Comment
  CHSC38317  Agoseris grandiflora Vernon Oswald 1983-6-16 691 Butte Upper Bidwell Park, Chico, on the north rim ca. 800 ft W of the E end of the North Rim Trail. 414 Comment
  CHSC42472  Agoseris retrorsa Lowell Ahart 1987-5-12 5653 Butte South of Lumpkin Ridge Road, 1 1/2 miles north-east of Camp 18, about 8 miles north-east of Feather Falls. 1280 Comment
  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
  CHSC54542  Agropyron desertorum Vernon H. Oswald; Lowell Ahart 1991-8-11 4822 Butte Butte Creek House Meadow Ecological Preserve located ca. 3.5 miles (air) southeast of Jonesville. On the east side of Humboldt Rd, just north of Butte Creek. 1767 Comment
  SACT000053  Agropyron laeve Herbert Copeland 1935-7-25 Butte Comment
  CHSC111146  Agrostis avenacea Lowell Ahart 2012-6-5 18167 Butte On the strand of the reservoir, north of Beatson Hollow, about 1 3/4 miles northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 6 miles (air) north of Oroville. 295 Comment
  CHSC116333  Agrostis avenacea Lowell Ahart 2015-10-20 20564 Butte On the west side of the Feather River, about half way of and east of One Mile Pond, about 6 miles (air) east of Biggs. 26 Comment
  CHSC102822  Agrostis exarata Lowell Ahart 2009-6-3 15829 Butte About 55 yards southeast of the gate, about 45 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 269 Comment
  CHSC111735  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. 62 Comment
  CHSC46100  Agrostis exarata J. D. Jokerst; R. A. Schlising 1982-10-7 1656 B Butte Coon Hollow along forest service rd. 27N74, 1/2 mile west of the West Branch of the Feather River. Comment
  CHSC96953  Agrostis exarata Lowell Ahart 2007-7-8 14269 Butte On the east side of North Honcut Creek, Peter Ahart Ranch, about 3/4 miles north and 2 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville. 45 Comment
  UCD52304  Agrostis exarata August L. Hormay 1929-7-24 s.n. Butte 3 miles North of Pulga. Comment
  SEINET10789949  Agrostis exarata A. Arthur Heller 1917-7-26 Heller 12825 Butte Open places in the yellow pine forest, Butte Meadows. Douglas fir and incense cedar are also plentiful. Common shrubs are Ceanothus cordulatus and Uva-ursi. 1402 Comment
  CHSC30292  Agrostis hendersonii M. S. Taylor 1980-5-27 2692 Butte Big Bald Rock, ca. 3 mi e of Lake Madrone. 996 Comment
  JEPS121947  Agrostis idahoensis Lowell Ahart 2014-7-7 19587 Butte In the bog, Coon Hollow, about 2 miles (air) north of Philbrook Reservoir. Comment
  CHSC93479  Agrostis microphylla Lowell Ahart 2006-5-3 12560 Butte On the west side of a small stream, about 50 yards south of the fence, about 1 mile northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 378 Comment
  SEINET10507108  Agrostis microphylla Mary Susan Taylor 1980-5-27 Taylor 2692 Butte T21N R6E sc sec 30. Big Bend quad. On Big Bald Rock, ca. 3 mi E of Lake Madrone; Yellow Pine Forest, large granite dome 998 Comment
  CHSC39658  Agrostis pallens Lowell Ahart 1983-6-21 4091 Butte Found along Bloomer Hill Road, about 1 1/4 miles west of the Oroville Quincy Highway, about 15 miles north-east of Oroville. Section 31. 450 Comment
  CHSC46604  Agrostis stolonifera V. Oswald; L. Ahart 1989-7-12 3845 Butte Road between Bald Mtn Lookout and Jones Meadow, ca. 2.3 mi (air) nne of the lookout. 1828 Comment
  SEINET10507126  Agrostis stolonifera Mary Susan Taylor 1978-7-21 Taylor 1796 Butte Vicinity of Lake Madrone, at Oroville- Quincy Hwy turnoff, ca. 10 mi NE of Oroville; Yellow Pine Forest. 610 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
  CHSC108772  Ailanthus altissima L. P. Janeway 2011-9-12 10725 Butte Sacramento Valley. North face of the levee on the south side of the Feather River about 250 m east of Centennial Park, Oroville. 45 Comment
  CHSC6154  Aira caryophyllea E. Parreno 1968-4-19 68 Butte Roadside of Cherokee Rd. e of Cherokee cemetery. Comment
  SEINET10507044  Aira caryophyllea Mary Susan Taylor 1980-5-27 Taylor 2691 Butte T21N R6E sc sec 30. Big Bend quad. On Big Bald Rock, ca. 3 mi E of Lake Madrone; Yellow Pine Forest, large granite dome 998 Comment
  CHSC33669  Alisma lanceolatum L. Ahart 1981-5-25 2838 Butte Bottom of a deep wash, on Peter Ahart Ranch, ca. 2 mi n and 1/15 mi e of Honcut. 50 Comment
  CHSC46618  Alisma lanceolatum Vernon H. Oswald 1988-8-5 3618 Butte Butte Community College, near the intersection of Durham-Pentz Rd and Clark Rd (Hwy 191). 85 Comment
  CAS-BOT-BC445434  Alisma triviale M. S. Taylor 1978-7-22 1850 A Butte On se corner of Richvale East Rd and Erickson Rd, Richvale 30 Comment
  CHSC38759  Alisma triviale Vernon Oswald 1983-6-29 793 Butte Upper Bidwell Park, Chico, ca. 300 ft w of Day Camp. In a swampy oxbow of Chico Creek. 91 Comment
  CHSC43286  Alisma triviale Lowell Ahart 1987-9-4 5883 Butte 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
  CHSC103955  Allium amplectens Lowell Ahart 2010-5-23 16728 Butte On the west side of Guardians trail, north of the small drainage, about 50 yards north of Pine Trail, about 1/4 mile (air) west of Highway 32, about 9 miles (air) northeast of Chico. 429 Comment
  CHSC20678  Allium amplectens M. S. Taylor 1975-6-30 822 Butte Ca. 1/4 mi w of Cohasset Hwy, ca. 400 yds n of Greenwood Store, Cohasset, ca. 18 mi ne of Chico. 853 Comment
  CHSC36909  Allium amplectens S. Azevedo; R. A. Schlising 1980-6-13 3700 Butte NE of Forest Ranch; 2.3 mi e and se of Hwy 32 along Garland Road, near jct with Doe Mill Road and Ponderosa Way. 902 Comment
  JEPS116048  Allium amplectens Lowell Ahart 2009-4-17 15560 Butte On the south slope of a ridge, about 150 yards west of Highway 32, near the south boundary, Upper Bidwell Park, about 5 miles (air) northeast of Chico 373 Comment
  CAS-BOT-BC460741  Allium amplectens A. A. Heller; H. E. Brown 1902-5-7 5480 Butte Berry Canyon (Near Clear Creek) Comment
  SEINET10472028  Allium amplectens Mary Susan Taylor 1981-5-21 Taylor 3769 A Butte T22N R4E nw/nw sec l and ne/ne sec 2, Pulga SW quad. S side of Concow Rd, ca. 0.5 mi S of its jct with Ponderosa Way (Rim Rd), ca. 20 air mi N of Oroville. In reddish weathered serpentine; 2800 ft. 853 Comment
  CAS-BOT-BC465444  Allium campanulatum A. A. Heller 1914-6-22 11480 Butte Little Summit near Butte Meadows 1463 Comment
  CHSC54022  Allium hyalinum Vernon H. Oswald 1991-4-1 4477 Butte Nelson Ave on the west border of the Thermalito Forebay, west of Oroville. 70 Comment
  CHSC62603  Allium jepsonii B. Castro 1993-7-27 488 Butte Ca. 2.5 mi SSW of Big Bar Mtn, 1.1 mi W of jcn of USFS Rd 22N84 with Rd 23N28, and then S to end of spur road which splits off to the S of USFS Rd 22N84. 950 Comment
  CHSC36952  Allium membranaceum R. A. Schlising 1980-6-6 3649 Butte N of Lake Oroville along Bald Rock Road, 0.8 mi s of jct with Oroville-Quincy Hwy at Brush Creek. 1024 Comment
  CHSC4371  Allium membranaceum R. L. Smith 1966-5-28 Butte 3 mi. w of DeSabla. Comment
  RSA32794  Allium membranaceum A. A. Heller 1938-5-28 15113 Butte Along the Feather River Highway east side of Jarboe Pass, 22 miles from Oroville. 610 Comment
  CHSC102181  Allium peninsulare George W. Hartwell 2009-4-22 Butte Concow Road, approx. 3-4 miles above Concow Reservoir on serpentine ridge burned by wildfire in summer 2008. 860 Comment
  CHSC28136  Allium peninsulare J. D. Jokerst 1979-4-25 204 Butte 200 m. se of intersection Rock Creek Road and Cohasset Hwy. 146 Comment
  CAS-BOT-BC132071  Allium peninsulare var. peninsulare Carl B. Wolf 1937-5-13 8658 Butte Sierra Nevada Foothills, 6 6/10 mi. Se. of Oroville on road to Wyandotte 121 Comment
  CHSC49478  Allium platycaule Vernon Oswald 1987-6-23 3028 Butte High Lakes Rd. 5.5 mi (odometer) n of Philbrook Rd. 1853 Comment
  CHSC89465  Allium sanbornii var. sanbornii R. D. Fischer 2004-7-18 448 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). Located along Big Chico Creek, E side, at S end of BCCER. 400 ft N of gated end of Bidwell Park. 227 Comment
  CHSC33657  Allium validum R. Schlising; R. Banchero, J. Fuller, M. Merryman 1981-7-19 4154 Butte E of Stirling City, on S side of Bald Mt. 1691 Comment
  CHSC35099  Allophyllum divaricatum R. A. Schlising; J. D. Jokerst 1980-7-2 3808 Butte NE of Forest Ranch, 2.3 mi E and SE of Hwy 32 along Garland Road. 902 Comment
  JEPS119762  Alnus rhombifolia Lowell Ahart 2012-5-14 18052 Butte On the south bank of Big Chico Creek, north of the paved road, between Tables 10 & 11, Lower Bidwell Park, Chico. Comment
  CHSC43172  Alopecurus aequalis Robert Banchero 1981-8-6 636 Butte Ca 3 air mi se of Jonesvill. 1853 Comment
  UC436297  Alopecurus aequalis E. B. Copeland August, 1930 Butte above Jonesville Jonesville 1650 Comment
  CHSC29717  Alopecurus saccatus J. D. Jokerst; T. B. Devine, D. Greenstein 1979-5-18 427 Butte Top of North Table Mt, ca 1.0 mi n of jct of e edge of Mt and Cherokee Rd. 381 Comment
  CHSC110393  Amaranthus albus Lowell Ahart 2012-9-28 18455 Butte Restoration area, south of Vallombrosa Avenue, north of Sycamore Pool in Big Chico Creek, Lower Bidwell park 62 Comment
  CDA3300  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 (air) northeast of Durham, about 3 1/2 miles (air) southeast of Chico. 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
  CHSC21247  Amaranthus retroflexus M. S. Taylor 1975-6-21 777 Butte In field at end of Citrus Ave, between 11th and 12th aves, Chico. 60 Comment
  CHSC32141  Ambrosia psilostachya Lowell Ahart 1973-11-1 289 Butte On dry deep rich soil, Peter Ahart Ranch, Honcut. 45 Comment
  CAS-BOT-BC142903  Amelanchier A. A. Heller 1939-4-26 15383 Butte Edge of thickets near the Feather River at the foot of the grade leading down from Stirling City Comment
  CAS-BOT-BC136691  Amelanchier alnifolia var. pumila Lowell Ahart 1980-5-19 2315 Butte Near bridge, South Fork of Feather River 800 Comment
  JEPS122264  Ammannia coccinea Lowell Ahart 2014-9-23 19867 Butte On the northeast part of Horseshoe Lake, about 100 yards northeast of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. Comment
  CDA36697  Ammannia robusta L. Ahart 2006-8-5 13085 Butte On the bottom of a large wash, Peter Ahart Ranch, about 1 1/2 miles north and 300 yards east of Honcut, about 12 miles south of Oroville. Comment
  JEPS104209  Ammannia robusta Lowell Ahart 2003-6-19 10294 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
  UCD169263  Amorpha fruticosa Lowell Ahart 2012-6-9 18177 Butte About 30 yards east of Ten Mile Road House, about 1/8 mile north of the old homestead, Upper Bidwell Park, about 9 miles (air) northeast of Chico. 269 Comment
  JEPS34382  Amsinckia eastwoodiae Rimo Bacigalupi and L. Heckard 1963-5-14 8858 Butte Along Paradise Skyway, 0.5 mile west of junction with the Humbug Road (just SE of Chico). Comment
  CHSC3876  Amsinckia intermedia Susan Carrauthers 1966-3-14 63 Butte Ca. 4 mi N.W. of city of Chico on Highway 32 next to Lindo Channel. Comment
  UC1191045  Amsinckia intermedia Francia Chisaki with R. Bacigalupi and G. T. Robbins 1956-4-19 682 Butte near bridge on West Branch of Feather River (on Nelson Bar Road) Comment
  UC725863  Amsinckia intermedia A. A. Heller 1942-4-26 Butte Oregon City Road Comment
  SBBG50944  Amsinckia intermedia J. Doty 1969-3-31 617 Butte E side of Cohasset Rd, ca. 8 mi N of Chico Comment
  CHSC109077  Amsinckia lycopsoides Lowell 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 miles northeast of Chico, south part of Upper Bidwell Park. 202 Comment
  UC727048  Amsinckia lycopsoides A. A. Heller 1941-4-19 16067 Butte n side of Sandy Gulch, Lindo Channel (along roadside edge of a field on the road to Bidwell Park) Comment
  UC726358  Amsinckia lycopsoides A. A. Heller 1941-3-16 15889 Butte along road 1/2 mi w Pentz Comment
  CHSC75254  Anchusa officinalis Vernon H. Oswald 1999-4-24 9720 Butte Genetic Resource Center (old USDA Plant Introduction Station) in south Chico. 70 Comment
  UC907552  Andropogon glomeratus var. pumilus C. B. Huffaker 1947-9-23 Butte near Oroville Comment
  JEPS98544  Andropogon virginicus var. virginicus Lowell Ahart 2000-9-27 8693 Butte About 1/4 mile southeast of Little Bald Rock, about 1 1/4 miles (air) northeast of Big Bald Rock, about 4 miles (air) northeast of Madrone Lake, about 13 miles (air) northeast of Oroville. 1066 Comment
  SBBG26817  Angelica breweri E. B. Copeland 1930-7-21 Butte Jonesville 1650 Comment
  CHSC30774  Angelica californica M. S. Taylor 1980-9-12 3335 Butte W side of Hwy 32, ca. 3 mi n of Forest Ranch, near Forest Ranch Fire Control Station, ca. 5 minute walk w from the Hwy down a dirt rd. 975 Comment
  CHSC41319  Angelica californica Lowell Ahart 1985-7-9 5108 Butte Along Ponderosa Way, about 1 mile south of the Ponderosa Dam across the South Fork of the Feather River, about 3 miles north-west of Forbestown. 548 Comment
  CHSC86584  Anisocarpus madioides L. P. Janeway; John Hunt 2003-6-13 7828 Butte Northern High Sierra Nevada. North side of South Fork Feather River arm of Lake Oroville, 515 m west-northwest of the north end of Enterprise Bridge. 277 Comment
  CHSC1950  Anthriscus caucalis A. Goekler 1929-5-15 Butte Bidwell Park. 60 Comment
  SEINET10964553  Antirrhinum cornutum Mary Susan Taylor 1975-10-3 Taylor 937 Butte Ca. 1/4 mile N of the Washout, between River Road and the Sacramento River, ca. 10 mi W of Chico. Riparian Woodland and sloughs, wet and humid. 37 Comment
  CHSC42265  Antirrhinum vexillo-calyculatum subsp. intermedium David M. Thompson 1983-7-5 365 Butte Hwy 70, 0.3 miles NE of NE end of bridge at intersection of Pulga Road and Hwy 70. 487 Comment
  CHSC45188  Aphanes occidentalis Lowell Ahart 1974-4-7 350 Butte Peter Ahart Ranch, about 12 miles south of Oroville. 45 Comment
  CHSC114984  Aphyllon purpureum Lowell Ahart 2015-4-18 20056 Butte About 100 yards south of the intersection of Forbestown Road and Black Bart Road, about 3 miles (air) southwest of Forbestown, about 11 miles (air) eastof Oroville. 752 Comment
  CHSC24677  Aphyllon purpureum C. E. Stopher 1976-4-15 22 Butte 1.6 km nw of Forest Ranch. 579 Comment
  CDA39737  Apocynum androsaemifolium Vernon H. Oswald & Lowell Ahart 1998-8-11 9470 Butte Four Trees-Coyote Gap Road 1.3 miles west of Four Trees. Comment
  CHSC88091  Apocynum cannabinum R. D. Fischer 2004-4-17 176 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located in riparian zone of Big Chico Creek w. of 10 Mile House Road where rd. and creek are closest. At creek edge. 213 Comment
  JEPS108968  Apocynum cannabinum Lowell Ahart 2006-9-11 13272 Butte Gravel bar, south side of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville 431 Comment
  CAS-BOT-BC392105  Aquilegia formosa John Thomas Howell 1951-8-19 28156 Butte 2 miles west of Pulga 365 Comment
  CAS-BOT-BC392109  Aquilegia formosa A. A. Heller 1914-6-22 11504 Butte About Chico Meadows 1219 Comment
  CHSC45021  Aquilegia formosa var. truncata Kirsten Tarp 1982-7-24 227 Butte Ca. 3.3 air miles NE of Stirling City. 1417 Comment
  CAS-BOT-BC167247  Aralia californica Lowell Ahart 1980-10-26 2687 Butte Near the Forbestown Res., Forbestown 400 Comment
  CHSC102006  Arceuthobium abietinum L. P. Janeway; David Toren 2009-9-15 9953 Butte Northern High Sierra Nevada. Plumas National Forest; top of ridge between Wildcat Creek and Bear Ranch Creek, 3.6 air km north of Road 23N31. 1419 Comment
  POM354297  Arceuthobium campylopodum E. B. Copeland 1928-8-18 759 Butte Neighborhood of Jonesville. Comment
  SEINET10492823  Arceuthobium campylopodum Mary Susan Taylor 1976-2-22 Taylor 998 Butte Yellow Pine Forest, ca. 2 mi N of Cohas st, ca. 10 ft E of Cohasset Hwy. 610 Comment
  CHSC4728  Arceuthobium occidentale R. Carter 1966-6-12 423 Butte Found 7 mi. E of Oroville at 6120 Woodleaf St. Rt. 1/8 mi. W off Feathervale; Growing parasitically on Pinus sabiniana, 50 yds W of house. 243 Comment
  CAS-BOT-BC24433  Arctostaphylos manzanita Lowell Ahart 1975-3-30 s.n. Butte Near ne. corner of Peter Ahart Ranch. 45 Comment
  SD60317  Arctostaphylos manzanita A. A. Heller 1928-1-23 14474 Butte At the Ten Mile House east of Chico in the digger pine and oak belt. Comment
  UCD52246  Arctostaphylos manzanita John Thomas Howell 1976-4-2 51564 Butte In Upper Sonoran Life Zone on volcanic rock; about 2 miles from Paradise on 'Skyway' to Chico. 396 Comment
  UCD52249  Arctostaphylos manzanita John Thomas Howell 1976-4-2 51566 Butte In Upper Sonoran Life Zone on volcanic rock; about 2 miles from Paradise on 'Skyway' to Chico. 396 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
  CHSC31916  Arctostaphylos manzanita subsp. manzanita M. S. Taylor; E. Pierce 1981-1-29 3374 Butte Cohasset Ridge SW of Cohasset Hwy, ca. 1 mi S of Cohasset. 60 Comment
  UCD52107  Arctostaphylos manzanita subsp. roofii Roman Gankin; W. Robert Powell 1966-10-26 869 Butte Cohasset Ridge northeast of Chico. 548 Comment
  CAS-BOT-BC24295  Arctostaphylos mewukka A. A. Heller 1928-2-22 14476 Butte About 2 mi. w. of Forest Ranch. Comment
  CAS-BOT-BC24298  Arctostaphylos mewukka A. A. Heller 1928-2-22 14476 Butte Near Forest Ranch Comment
  LA42197  Arctostaphylos mewukka C. B. Wolf; 1937-3-29 8340 Butte Sierra Nevada foothills, 3.5 mi. below Magalia on Oroville Road 487 Comment
  RSA32000  Arctostaphylos mewukka A. A. Heller 1942-1-4 16347 Butte 4 miles below Paradise on the Pentz-Magalia Road. Comment
  JEPS120006  Arctostaphylos mewukka subsp. mewukka Lowell Ahart 2012-4-30 17941 Butte On the north side of Guardian Trail about 200 yards west of Pine Trail, about 1/4 mile west of Highway 32, about 8 1/2 miles northeast of Chico, south part of Upper Bidwell Park. Comment
  CAS-BOT-BC38557  Arctostaphylos mewukka subsp. truei John Thomas Howell 1976-4-2 51564 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-BC45566  Arctostaphylos nevadensis E. B. Copeland 1931-6-22 672 Butte Jonesville. On ridge e. of the Summit. 2100 Comment
  CAS-BOT-BC46714  Arctostaphylos patula H. F. Copeland 1928-5-6 223 Butte Jonesville. 1524 Comment
  UCD51944  Arctostaphylos truei John Thomas Howell 1975-6-15 51094 Butte In Upper Sonoran Zone on volcanic rock, about 2 miles from Paradise on 'Skyway' to Chico, Butte County. 396 Comment
  CAS-BOT-BC47368  Arctostaphylos viscida subsp. viscida H. F. Copeland 1932-6-24 A 3 Butte Humboldt Grade, about 12 miles from Chico Comment
  CAS-BOT-BC47379  Arctostaphylos viscida subsp. viscida John Thomas Howell 1975-6-15 51101 Butte about 2 miles from Paradise on Skyway to Chico 396 Comment
  CAS-BOT-BC47383  Arctostaphylos viscida subsp. viscida John Thomas Howell 1975-6-15 51099 Butte about 2 miles from Paradise on Skyway to Chico 396 Comment
  CAS-BOT-BC48284  Arctostaphylos viscida subsp. viscida Lowell Ahart 1975-4-1 s.n. Butte Near Forbestown 457 Comment
  CAS-BOT-BC48290  Arctostaphylos viscida subsp. viscida John Thomas Howell 1955-6-15 30489 Butte 6 miles from Paradise on road to Pentz 426 Comment
  CHSC109110  Arctostaphylos viscida subsp. viscida Lowell Ahart 2012-2-22 17752 Butte On the high bank, on the south side of Ten Miles House Road, about 1/2 miles west of Highway 32, about 9 miles (air) northeast of Chico. 335 Comment
  CHSC88618  Arctostaphylos viscida subsp. viscida Linnea Hanson 1985-6-21 275 Butte Plumas National Forest. At Jarbo Gap on Hwy. 70. 731 Comment
  SEINET3919495  Aristida oligantha Beecher Crampton 1963-9-9 6882 Butte 3.5 miles east of Honcut along La Porte road.; 0 Comment
  UCD137818  Aristolochia californica K. L. McElroy 1968-4-13 37 Butte Table Mountain. 243 Comment
  CAS-BOT-BC295831  Arnica dealbata Lowell Ahart 1986-7-2 5337 Butte About 1/2 mile south-west of Bald Mountain, about 4 1/2 miles north-east of Stirling City 1615 Comment
  UC600518  Arnica dealbata H. F. Copeland 1930-7-26 13206 Butte Jonesville, on ridge above hotel Jonesville Comment
  CHSC45628  Arnica discoidea Vernon H. Oswald 1987-7-16 3129 Butte West Branch of Feather River where it crosses the road to Jones Meadow, ca. 1 mi (air) NE of Inskip. 1341 Comment
  CHSC103160  Artemisia douglasiana Lowell Ahart 2009-11-19 16554 Butte On the east side of Big Chico Creek, southwest of the meadow, about 30 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 209 Comment
  UC726606  Artemisia douglasiana A. A. Heller 1916-9-23 12661 Butte near Forest Ranch; Sierra foothills Comment
  UC436307  Asclepias cordifolia E. B. Copeland July, 1930 Butte Jonesville 1600 Comment
  JEPS345  Aspidotis californica R. M. Austin Apr. 1883 Butte Big Chico Canyon Comment
  CAS-BOT-BC65909  Aspidotis densa E. B. Copeland 1929-7-13 328 Butte Jonesville 1700 Comment
  CHSC24898  Aspidotis densa E. Rilla 1976-4-4 19 Butte Scattered on n side of Ponderosa Way, ca. 4 mi w of junc of Ponderosa Way and Hwy 32, ca. 22 mi ne of Chico. 426 Comment
  POM219414  Aspidotis densa H. F. Copeland 1928-3-4 200 Butte Near Magalia 610 Comment
  CAS-BOT-BC99219  Aster M. S. Taylor 1977-11-12 1537 Butte By Big Chico Creek, at end of Upper Bidwell Park, ca. 10 mi e of Chico 304 Comment
  RSA726560  Aster chilensis var. chilensis L. Ahart 2007-10-30 14507 Butte About 2.5 miles (air) northeast of Palermo, about 4.25 miles (air) southeast of Oroville. 130 Comment
  POM193100  Aster eatonii E. B. Copeland 1930-8-26 487 Butte Jonesville 1500 Comment
  SEINET10474437  Aster oregonensis subsp. californicus Mary Susan Taylor 1982-8-16 Taylor 4984 Butte T23N R3E sw/sw sec 30. Paradise E quad. In Mixed Evergreen Forest; on edge of serpentine outcrop, just s of old RR Xing over Coutelenc Rd, at the Skyway, Magalia. 2400 ft. Comment
  CHSC108827  Astragalus gambelianus Lowell Ahart 2012-4-17 17880 Butte Bare areas where cobbles were removed for Oroville Dam, 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. 35 Comment
  CAS-BOT-BC192797  Astragalus pauperculus A. A. Heller 1914-4-13 11286 Butte Chico-Oroville road 11 miles from Chico Comment
  CHSC43661  Astragalus pauperculus Vernon Oswald 1985-3-30 1688 Butte Upper Bidwell Park, Chico, near the 3rd tower n of Upper Park Rd. of the transmission line crossing the park w of Horseshoe Lake. 91 Comment
  UC727126  Astragalus pauperculus A. A. Heller 1938-4-3 15013 Butte n Oroville (treeless summit Table Mountain); n of Oroville, summit Table Mountain 304 Comment
  POM45818  Astragalus tener var. ferrisiae C. C. Bruce 1897-04 2078 Butte Oroville road. Comment
  CHSC41769  Asyneuma prenanthoides Lowell Ahart 1974-10-22 669 Butte Along the road that crosses the South Fork of the Feather River, about 3/4 mile north of Golden Trout Crossing, west of the Sly Creek Dam. 762 Comment
  CAS-BOT-BC68697  Athyrium filix-femina var. californicum Javier Penalosa 1962-6-18 2445 Butte N. of Brush Creek on old Oroville-Quinney Road, near confluence of French and Peavine Creeks. 609 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
  CHSC50024  Athysanus pusillus Lowell Ahart 1990-3-9 6414 Butte Banks on the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CHSC52804  Atriplex heterosperma Lowell Ahart 1981-11-6 3219 Butte Found on good soil and along the sides of the deep ditch, near the entrance to the Gray Lodge Waterfowl Management HQ, just w of Pennington Rd, ca 12 mi sw of Gridley. 35 Comment
  CHSC34772  Atriplex rosea Lowell Ahart 1981-11-6 3220 Butte Near the entrance to the Gray Lodge Waterfowl Mangement Headquarters, just west of Pennington Road, about 12 miles south-west of Gridley. 35 Comment
  CHSC47669  Atriplex serenana Lowell Ahart 1989-9-28 6400 Butte On the east side of Highway 70, near Garden Drive off ramp, Thermalito. 73 Comment
  CHSC31391  Avena barbata J. D. Jokerst 1979-4-13 1200 Butte Top of North Table Mt in the vicinity of Coal Cr Canyon. 396 Comment
  CHSC31711  Avena fatua L. Ahart 1978-5-1 1699 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC35663  Avena fatua R. E. Preston 1982-4-22 251 Butte Ca. 0.3 mi ne of Lime Saddle Powerhouse, ca. 4.5 mi se of Paradise. 353 Comment
  CHSC46433  Avena fatua Lowell Ahart 1989-5-23 6234 Butte 1/2 mile east of Dunstone Drive, about 1/2 mile north of Bangor Park Road, west of Bangor. 76 Comment
  CHSC9343  Avena fatua B. Anthony 1968-4-14 456 Butte 3 miles E. of Hamilton City on Hwy. 32. Comment
  CAS-BOT-BC66236  Azolla filiculoides Lowell Ahart 1985-3-24 4850 Butte south of Highway 70, at the intersection of Highway 70 and 191 100 Comment
  CHSC116268  Azolla filiculoides Lowell Ahart 2015-11-18 20652 Butte About one mile south of Palm Avenue, about 2 miles southeast of the intersection of Palm Avenue and Larkin Road, about 5 miles (air) northeast of Gridley. 26 Comment
  CHSC79632  Azolla filiculoides Lowell Ahart 2001-1-26 8718 Butte On the east side of the parking lot, on the north side of Rutherford Road, about 1/4 mile west of Pennington Road, Gray Lodge Waterfowl Management Area, about 6 miles (air) southwest of Gridley. 21 Comment
  JEPS107680  Azolla filiculoides Lowell Ahart 2005-4-14 11703 Butte East of the railroad tracks, in the stream at the railroad bridge, north of Spruce Street, Gridley 28 Comment
  JEPS122266  Azolla filiculoides Lowell Ahart 2014-4-9 19338 Butte West end of Liberty Road, about one mile (air) south of Colusa Highway, about 7 miles (air) southwest of Gridley. Comment
  CAS-BOT-BC66254  Azolla mexicana M. S. Taylor; L. Ahart 1982-10-11 5162 Butte Pennington quad. Graylodge Wildlife Refuge, m side of Rutherford Rd, ca. 1/2 mi e of Pennington Rd, 21 Comment
  CHSC103016  Azolla microphylla Lowell Ahart 2009-10-8 16412 Butte In a deep large ditch, on the east side of the road, about 20 yards east of Parking Lot 13, Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley. 19 Comment
  CAS-BOT-BC98007  Baccharis pilularis Lowell Ahart 1985-2-17 4838 Butte near Kunkle Res., about 2 miles south of Paradise 550 Comment
  CDA10378  Baccharis pilularis L. Ahart 2000-11-4 8715 Butte On the east side of Highway 70, about 50 yards south of Rich Gulch Road, about 1 mile north of the West Branch Bridge across Lake Oroville, about 5 miles (air) southeast of Paradise. Comment
  CHSC34781  Baccharis pilularis subsp. consanguinea Lowell Ahart 1981-11-6 3225 Butte On S side of rd, a little E of Graylodge Waterfowl Mgmt HQ, ca. 1/2 mi W of Pennington Rd, ca. 12 mi SW of Gridley. 35 Comment
  POM37535  Baccharis salicifolia C. C. Bruce 1897-03 1820 Butte Little Chico Comment
  POM180885  Bacopa rotundifolia H. F. Copeland 1923-7-9 843 Butte Nelson. Comment
  CAS-BOT-BC16375  Barbarea orthoceras Lowell Ahart 1988-7-31 6162 Butte Along the north edge of the road, about 1 air mile north and a little east of Bald Mountain. 1524 Comment
  CAS-BOT-BC16378  Barbarea orthoceras Clarence Roy Quick 1963-7-16 63 48 a Butte Sierra Nevada. Feather River Canyon. Section Corner Meadow, east of Pulga. 1463 Comment
  CHSC9132  Berberis aquifolium var. dictyota C. A. Stafford 1970-4-26 23 Butte On E. side of Ponderosa Way, ca. 6 miles N. from jct of Cohasset Hwy. and Ponderosa Way. Lassen Game Refuge vic. 1127 Comment
  UC725880  Berberis aquifolium var. repens A. A. Heller 1939-4-8 15365 Butte 2 mi e Magalia (on the Coutolene rd) Comment
  CHSC42057  Bergia texana Lowell Ahart 1986-11-9 5445 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
  CHSC45271  Bergia texana Vernon Oswald 1988-10-25 3712 Butte Wurlitzer Unit, Vina Plains Preserve. 57 Comment
  CHSC30414  Bidens frondosa M. Merryman 1979-9-23 50 Butte SW of Chico, just E of Ord Ferry and Sacramento River. 30 Comment
  CHSC38327  Bidens frondosa Vernon H. Oswald 1983-8-26 1028 Butte Upper Bidwell Park, Chico, at Horseshoe Lake. 100 Comment
  CHSC100908  Bistorta bistortoides R. A. Schlising; Lawrence Janeway 1988-8-2 4657 Butte North of Lomo and west of Butte Meadows, along Hwy 32 at Soda Springs Campground. Comment
  CAS-BOT-BC100692  Blennosperma nanum var. nanum Lowell Ahart 1975-4-2 s.n. Butte Honcut 45 Comment
  HSC68163  Blennosperma nanum var. nanum J. P. Smith, J. O. Sawyer 1973-4-14 6051 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  RSA0028756  Boisduvalia stricta A. A. Heller 1938-5-22 15107 Butte Near the airport north of Chico. 91 Comment
  CAS-BOT-BC417633  Boykinia major A. A. Heller 1928-7-10 I 4662 Butte Wet stream banks at Butte Meadows Comment
  UC1198849  Boykinia major C. M. Wilder 1912-7-18 1696 Butte Martin's Camp Comment
  RSA443119  Boykinia occidentalis L. Ahart 1985-6-30 5075 Butte E of the dirt road to the Forbestown Res. About 2.5 miles NE of Forbestown. 869 Comment
  CHSC86533  Brachypodium distachyon L. P. Janeway 2003-5-7 7776 Butte Northern Sierra Nevada Foothills. Kelly Ridge between Lake Oroville Visitors Center and south end of Oroville Dam. 329 Comment
  JEPS120521  Brassica rapa L. P. Janeway 2012-3-30 10803 Butte Sacramento Valley. West side of Hwy 99 1.6 km south of Estates Drive, south edge of Chico. Comment
  CAS-BOT-BC106319  Brickellia californica Lowell Ahart 1987-7-3 5762 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 274 Comment
  SEINET10475011  Brickellia californica Mary Susan Taylor 1977-11-12 Taylor 1542 Butte Up to 1/4 mi beyond end of Upper Bidwell Park Road, just out of Upper Bidwell Park, Chico. Foothill Woodland. Comment
  CAS-BOT-BC127679  Brickellia greenei Lowell Ahart 1983-8-16 4281 Butte Along the edge of Humboldt Road, about 3 miles SW of Butte Meadows. 1450 Comment
  CAS-BOT-BC145533  Briza minor A. A. Heller 1914-4-14 11289 Butte Hills 8 miles north of Oroville. Comment
  CHSC32370  Briza minor J. D. Jokerst 1979-5-2 1228 Butte Top of North Table Mt., ca. 200 m S of Cherokee Rd. 396 Comment
  CHSC27330  Brodiaea californica T. B. Devine 1977-5-22 380 Butte Meridian Roadside 2.5 mi n of Hwy 99. 67 Comment
  SEINET10472609  Brodiaea californica Lowell Ahart 1983-6-15 Ahart 4053 Butte Peter Ahart Ranch, ca. 2.5 mi ne of Honcut. Foothill Woodland; 50 m. Along the edges of North Honcut Creek. 50 Comment
  SEINET10472610  Brodiaea californica Lowell Ahart 1985-6-30 Ahart 5084 Butte About 2 1/2 miles north-east of Forbestown. Alt. 2850 ft. 868 Comment
  JEPS122027  Brodiaea minor Lowell Ahart 2014-7-2 19552 Butte About 120 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. Comment
  SEINET9636477 Image available Brodiaea minor Carl B. Wolf 1937-5-14 8667 Butte Sacramento Valley, 4 1/2 miles west of Oroville on road to Richvale. 46 Comment
  UC143027  Brodiaea minor Mrs. R. M. Austin Jul 1896 32 Butte Sutton House Comment
  UC501524  Brodiaea minor Frank W. Peirson 1926-6-21 6767 Butte Humboldt Road Butte Meadows Comment
  CHSC46855  Brodiaea sierrae R. A. Schlising; P. Broyles 1988-7-9 4574 Butte E of Paradise and Magalia, and N of Oroville and Jarbo Gap; along Rim Road. 792 Comment
  CHSC70820  Brodiaea sierrae B. Castro; H. Durio, L. Gehrung 1995-7-25 593 Butte Ca. 2.5 air mi SSW of Big Bar Mtn, on N side of USFS Rd 22N84. 944 Comment
  RSA712646  Brodiaea sierrae L. P. Janeway 2005-7-16 8497 Butte Northern High Sierra Nevada; on Rocky Ridge, along Rim Road (Ponderosa Way); about 1.3 km south of Bachelor Point. 927 Comment
  JEPS94979  Bromus alopecuros Lowell Ahart 1997-5-5 7737 Butte about 12 mi s of Oroville (about 2 mi n and 1/10 mi e of Honcut, Peter Ahart Ranch); Peter Ahart Ranch 33 Comment
  CAS-BOT-BC148835  Bromus carinatus var. marginatus A. A. Heller 1917-7-26 12832 Butte Butte Meadows. 1280 Comment
  CHSC49515  Bromus carinatus var. marginatus Vernon Oswald; Lowell Ahart 1987-7-1 3088 Butte Scotts John Rd. at 'Big Rock Meadow,' 1.0 mi n of the road connection Humboldt and Humbug Rds,ca. 2.5 mi ene of Jonesville. 1780 Comment
  CAS-BOT-BC155943  Bromus commutatus Lowell Ahart 1983-6-26 4143 Butte Sierra Nevada. Along Ponderosa Way, ca. 0.5 mile south of the East Fork of Canyon Creek, ca. 13.5 miles northeast of Oroville. 550 Comment
  CDA5620  Bromus diandrus L. Ahart 2005-4-14 11707 Butte At the base of the railroad roadbed, east side of the railroad tracks, south of the railroad bridge, north of Spruce Street, Gridley. Comment
  CHSC38797  Bromus diandrus Vernon Oswald 1983-2-23 101 Butte Upper Bidwell Park, Chico, beside Upper Park Rd. 0.2 mi w of the power lines. 97 Comment
  RSA754797  Bromus diandrus L. Ahart 2009-5-8 15667 Butte S side of gravel road, about 10 yards E of Cedar Grove Parking Area in Lower Bidwell Park, Chico 67 Comment
  CHSC77457  Bromus hordeaceus Tim Stofer 1997-4-14 15 Butte At the head of the South Rim Trail off South Park Dr. in upper Bidwell Park. All along the trail. 76 Comment
  CHSC116499  Bromus japonicus Lowell Ahart; Susan Kephart, Jim Kephart 2015-6-4 20198 Butte Day Meadow, about 100 yards south of the poor dirt road, about 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. 829 Comment
  CHSC101463  Bromus laevipes L. P. Janeway; Sarah Starkey 2009-7-13 9856 Butte Northern High Sierra Nevada. Upper end of Rocky Ridge, southwest side of Rim Road (Ponderosa Way) 0.3 km southeast of Concow Road near the quarry. 978 Comment
  CHSC74912  Bromus laevipes E. Hubert 1996-6-24 Butte Ca 6 air mi NE of Paradise, ca 2 mi NNE of Concow Reservoir and 200 ft W of large bend in Concow Rd, 0.5 mi S of its jcn with Ponderosa Way (Rim Rd). Serpentine outcrop. 883 Comment
  CHSC93794  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
  JEPS118076  Bromus madritensis subsp. rubens Lowell Ahart 2011-5-1 17345 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
  UCD59252  Bromus orcuttianus A. A. Heller 1917-7-26 12819 Butte Butte Meadows. 1402 Comment
  SEINET10934048  Bromus rubens A. Arthur Heller 1914-4-11 Heller 11279 Butte Hills 8 miles N of Oroville. Comment
  CAS-BOT-BC161613  Bromus sterilis John Thomas Howell 1962-6-15 37493 Butte Sierra Nevada. Magalia. 731 Comment
  CHSC43052  Bromus sterilis Pauleen Broyles 1986-4-4 949 Butte Town of Paradise. E side of Camino Road off Elliott. 548 Comment
  JEPS87479  Bromus sterilis Lowell Ahart 1993-6-20 6978 Butte at Camp 18 Camp 18 1158 Comment
  JEPS100684  Bromus suksdorfii Dean W. Taylor 1995-8-6 15378 Butte 3 air mi NE of Stirling City (near Jackass Flat); Plumas National Forest 1158 Comment
  CDA1860  Bromus tectorum L. Ahart 2003-5-9 10120 Butte South side of Evans Reimer Road, about 3/4 mile west of Block Road, 3 miles (air) southwest of Gridley. Comment
  JEPS87186  Bromus tectorum Lowell Ahart 1992-5-6 6748 Butte about 4 mi s of Oroville (along w side of Lone Tree Road, about 1/4 mi s of intersection of Powerhouse Hill Road and Lone Tree Road); Lone Tree Road 60 Comment
  RSA718082  Bromus vulgaris L. Ahart 2006-7-16 12975 Butte about 220 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. West edge of a large wet meadow and bog, 1570 Comment
  CHSC42841  Bulbostylis capillaris Lowell Ahart 1980-8-20 2475 Butte Along Bean Creek Road, south of Little Bald Rock, about 15 miles northeast of Oroville. 1005 Comment
  CHSC49525  Calamagrostis canadensis Vernon Oswald; Lowell Ahart 1987-7-1 3059 Butte Scotts John Creek 1.3 mi n of the road connecting Humboldt and Humbug Rds, ca. 2.5 mi ene of Jonesville. On the edge of the creek. 1813 Comment
  JEPS95148  Calamagrostis canadensis Lowell Ahart 1997-7-11 7757 Butte about 4 air mi ne of Stirling City (near the w edge of small bog, e of the dirt road, about 1/4 air mi e of Bald Mountain) 1676 Comment
  CHSC68913  Calamagrostis canadensis var. langsdorffii Lowell Ahart 1997-7-11 7757 Butte Near the west edge of a bog, east of the dirt road, about 1/4 mile (air) east of Bald Mountain, about 4 miles (air) northeast of Stirling City. 1676 Comment
  CHSC25150  Calandrinia ciliata var. menziesii Willis Ball 1970-2-24 71 Butte Growing along road in Upper Bidwell Park Ca. 2 miles N. E. of Bidwell Golf Course building. 121 Comment
  CHSC43860  Callitriche hermaphroditica Vernon Oswald 1988-4-4 3267 Butte Harter's Cherokee Ranch located on the w side of Hwy 99 between Hwy 149 and Dry Creek. In the western-most farm pond located along a drainage in the section indicated above. 53 Comment
  CHSC31832  Callitriche marginata L. Ahart 1974-4-29 447 Butte In rice field, Peter Ahart Ranch, Honcut. 45 Comment
  CHSC40593  Calocedrus decurrens Lowell Ahart 1985-9-18 5168 Butte About 2 miles west of Sly Creek Reservoir, east of the intersection of Golden Trout Crossing road on Reville Ridge. 914 Comment
  SEINET10531070  Calocedrus decurrens Mary Susan Taylor, Lowell Ahart 1981-8-15 Taylor 4182 Butte T25N R4E se 1/4 se 1/4 sec 29. Paradise NE quad. Weed lot on N side of the Sky- way in Inskip. Yellow Pine Forest. 4800 ft. 1463 Comment
  CAS-BOT-BC487510  Calochortus albus John Thomas Howell; Gordon H. True 1967-5-9 42230 Butte Southeast side of North Fork of Feather River at Pulga Bridge Comment
  CHSC2235  Calochortus luteus N. Maxwell 1936-6-27 Butte Richardson Springs road. 91 Comment
  CHSC33143  Calochortus luteus J. D. Jokerst 1981-5-14 1324 Butte Top of North Table Mt ca 300 M north of Cherokee Rd at the west edge of the mountain. Comment
  CAS-BOT-BC491853  Calochortus luteus E. B. Copeland 1899-4-1 s.n. Butte Chico Comment
  CHSC24782  Calochortus monophyllus D. E. Hale 1976-4-10 15 Butte On n side of Vilas Rd, ca. 25 m e of Vilas Rd - Cohasset Hwy intersection, 24 km ne of Chico. 800 Comment
  CHSC31356  Calochortus monophyllus Howard Paul 1980-3-30 2 Butte Ca. 0.25 mi nw of Humbug road on a large grassy ridge top, 2.5 mi ne of the Centerville cemetery, ca. 20 mi e of Chico. 457 Comment
  CAS-BOT-BC492607  Calochortus monophyllus Mrs. B. O. Clark 1915-4-12 s.n. Butte Near Paradise in the lower Sierra Nevada, in the Lower Transition Zone 600 Comment
  SEINET7040283  Calochortus monophyllus A. G. Vestal 1963-5-30 s.n. Butte Road edge ca. 0.5 mile west of Forbestown. Forbestown Quadrangle UTM Zone 10, 648472mE, 4375587mN. Comment
  SEINET5162627  Calochortus tolmiei Unknown 1995-6-16 04 Butte outside Paradise, CA. on road to Stirling City Comment
  CAS-BOT-BC494347  Calochortus tolmiei Lowell Ahart 1985-5-15 5000 Butte On dry rocky red serpentine soil, east of a small dry stream, 1/8 mile east of the dirt road, about 1 1/2 miles north-east of Concow Res. 800 Comment
  CAS-BOT-BC496524  Calochortus venustus H. C. Cantelow 1940-5-10 s.n. Butte 10 miles east of Oroville, Bidwell Bar Bridge Comment
  JEPS117414  Caltha leptosepala var. biflora Lowell Ahart 2010-9-28 17266 Butte On the south edge of a 10 acre meadow, about 100 yards east of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir 1886 Comment
  CHSC46246  Calycadenia fremontii Vernon H. Oswald 1989-5-2 3758 Butte Pasture located S of Broyles Rd and W of Hwy 99 owned by Howard Wurlitzer. 53 Comment
  CAS-BOT-BC273292  Calycadenia fremontii A. A. Heller 1922-8-25 13735 Butte Along the Richardson Springs road about 3 miles from Chico Comment
  CAS-BOT-BC270006  Calycadenia multiglandulosa Lowell Ahart 1983-6-21 4086 Butte Found along Bloomer Hill Road, about 1.25 miles W of the Oroville Quincy Highway, about 15 miles NE of Oroville 450 Comment
  CHSC46913  Calycadenia multiglandulosa Lowell Ahart 1980-7-4 2448 Butte Near the Oak Grove Cementery, about 1/2 mile southeast of Hurleton. 548 Comment
  CHSC48133  Calycadenia multiglandulosa Vernon H. Oswald 1985-6-15 1834 Butte Hurleton-Swedes Flat Rd. ca. 0.75 mi N of Swedes Flat Rd. 441 Comment
  SEINET11842848  Calycadenia multiglandulosa subsp. bicolor L. Ahart, Ahart, P. 1984-1 4687 Butte ca 1 mi SE of Hurleton, 1/12 mi E of Oak Grove Cemetery, ca 10 mi E of Oroville 500 Comment
  CAS-BOT-BC106087  Calycadenia oppositifolia David D. Keck 1928-6-16 452 Butte 1.5 miles south of Berry Creek Inn 609 Comment
  CHSC287  Calycadenia oppositifolia B. Richardson 1929-5-20 Butte Butte Meadows. Comment
  CHSC44854  Calycadenia oppositifolia Lowell Ahart 1979-5-29 1898 Butte East of Kunkle Creek. About 2 1/2 air miles south-east of Paradise. 457 Comment
  CHSC78118  Calycadenia oppositifolia Lowell Ahart 2000-5-31 8415 Butte A serpentine ridge, about 200 yards east of where Kunkle Creek enters Lake Oroville, east of the Kunkle Power House, about 3 miles southeast of Paradise. 335 Comment
  CHSC84731  Calycadenia oppositifolia L. P. Janeway; John Hunt 2003-6-20 7856 Butte Northern Sierra Nevada Foothills. Serpentine outcrops on west side of West Branch Feather River arm of Lake Oroville, half way between Lime Saddle and Cape Horn. 296 Comment
  RSA724858  Calycadenia spicata B. Castro, L. P. Janeway 2005-6-5 1481 Butte About 6 air miles southeast of Chico, in bottom of canyon SE of Neal Road, about 100 feet northwest of intermittent creek. 85 Comment
  SEINET10475219  Calycadenia truncata subsp. scabrella Mary Susan Taylor 1979-6-22 Taylor 2166 Butte T22N R5E sw 1/4 sec 32. Pulga bridge on Hwy 70, on N side of trail leading from NE side of the bridge, ca. 27 mi N of Oroville; serpentine soils. 488 Comment
  CAS-BOT-BC90925  Calycanthus occidentalis A. A. Heller 1913-6-6 10782 Butte Ditch along Table Mountain 8 miles north of Oroville. 182 Comment
  CAS-BOT-BC90928  Calycanthus occidentalis John Thomas Howell 1967-6-22 42640 Butte Sierra Nevada. 1 mile southwest of Pulga Bridge Canyon of the Feather River North Fork. Comment
  CHSC174  Calycanthus occidentalis Agnes Riker 1897-5-1 Butte Comment
  CHSC99663  Calycanthus occidentalis H. Koeth 2007-4-12 Butte Chico State Campus, South of Holt Hall (below walking bridge). 57 Comment
  CHSC43717  Calyptridium monospermum Vernon Oswald 1983-6-22 727 Butte Calif. Hwy. 32 2.8 mi n-e of Forest Ranch. 899 Comment
  CHSC57129  Calyptridium monospermum L. P. Janeway 1987-6-26 2313 Butte Camp Creek, 0.4 mi east Granite Ridge near crossing of the road to Lynch and Logue Meadows. 1365 Comment
  UC82816  Calyptridium monospermum Mrs. R. M. Austin 1896-7-1 696 Butte Colby Comment
  UCD100350  Calyptridium monospermum Alva Day 1939-5-31 s.n. Butte Mooretown. Comment
  UC426906  Calyptridium umbellatum E. B. Copeland 1930-7-12 413 A Butte above Jonesville 2000 Comment
  CHSC99549  Calystegia atriplicifolia subsp. buttensis L. P. Janeway 2008-5-26 9392 Butte Northern High Sierra Nevada. Along top of low ridge just west of the saddle at head of Empire Creek, about 1.6 km west of Flea Valley. 1097 Comment
  UC1794960  Calystegia atriplicifolia subsp. buttensis R. K. Brummitt and R. Schlising 1998-5-16 19866 Butte Between Paradise and Magalia; besides Skyway 650 Comment
  CHSC63134  Calystegia malacophylla subsp. malacophylla Lowell Ahart 1994-7-1 7442 Butte Around large rocks, on the north side of the larger pond, steep rocky slope on the north side of Henness Pass Road,at Keystone Gap, east of Keystone Mountain, about 1-1/2 miles north-east of Middlewaters, about 11 miles (air) northeast of Alleghany. 1889 Comment
  CHSC46785  Calystegia occidentalis M. S. Taylor 1982-6-24 4735 Butte At end of spur rd along Flea Mt Ridge, ca. 1.5 mi of Flea Mt., ca. 9 mi ne of Jarbo Gap on Hwy 70. 1066 Comment
  CHSC34978  Calystegia occidentalis subsp. occidentalis R. A. Schlising 1974-6-5 3138 Butte 9.9 mi NE of Chico along Hwy 32. 512 Comment
  RSA4474  Calystegia occidentalis subsp. occidentalis E. B. Copeland 1931-7-4 674 Butte Jonesville. 1550 Comment
  CHSC51082  Camassia quamash subsp. quamash Pauleen Broyles 1987-7-19 1079 Butte Ca. 7.2 km (air) NE of Inskip. 526 Comment
  CHSC48619  Camissonia contorta Vernon Oswald 1988-3-17 3259 Butte Harter's Cherokee Ranch located on the w side of Hwy 99 between Hwy 149 and Dry Creek. 54 Comment
  CHSC103660  Capsella bursa-pastoris Lowell Ahart 2010-2-13 16567 Butte Corral west of metal barn, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC3623  Capsella bursa-pastoris John Francis 1966-2-21 28 Butte Orchard across road from Durham Cemetery. Comment
  CAS-BOT-BC37791  Cardamine nuttallii A. A. Heller 1922-3-19 13599 Butte Magalia. Comment
  CHSC100966  Cardamine oligosperma Lowell Ahart; Josephine Guardino, Steve Green 2009-2-20 15492 Butte Near the north side of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  CHSC24976  Cardamine oligosperma J. Cox 1976-3-10 42 Butte N. Table Mt. Ca. 300 yds. n of Cherokee Rd., 4.3 mi. ne of Oroville. 426 Comment
  CHSC39612  Cardamine oligosperma Lowell Ahart 1983-3-28 3910 Butte Found on the east bank of Woodleaf Creek, above the road, about 3/8 mile south-west of the Forbestown Res., about 4 miles north-east of Forbestown. 450 Comment
  UC1609210  Cardamine oligosperma Vernon H. Oswald and Lowell Ahart 1993-3-24 5246 Butte n. of historical site of Pentz (on e. side of a secondary drainage entering Dry Creek 2 mi n. of Pentz Rd., e. side Dry Creek Canyon); Dry Creek Canyon, drainage entering Dry Creek 262 Comment
  CHSC31617  Carduus pycnocephalus L. Ahart 1975-6-5 785 Butte North Honcut Creek, Peter Ahart Ranch, Honcut. 45 Comment
  JEPS115627  Carduus pycnocephalus subsp. pycnocephalus Lowell Ahart 2009-5-15 15691 Butte On the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 203 Comment
  CAS-BOT-BC18215  Carex A. A. Heller 1928-6-16 14614 Butte Butte Meadows. Comment
  JEPS117181  Carex Lowell Ahart 2010-4-23 16579 Butte Lawn of home #1082, near the middle of and north side of E7th Street, between Sycamore Street and Linden Street, Chico 63 Comment
  SJSU15296  Carex Lisa Morton 2002-3-31 18 Butte Upper Bidwell Park along Middle Trail 50 Comment
  CHSC53750  Carex abrupta L. P. Janeway; C. A. Janeway 1986-8-31 1817 Butte N side of road at PG and E picnic area along NE side of Philbrook Reservoir. 1691 Comment
  CHSC38068  Carex amplifolia R. E. Preston 1982-6-23 313 Butte On the bank of Fall Creek, SW of Rag Dump. 1158 Comment
  CAS-BOT-BC17808  Carex amplifolia L. P. Janeway 1988-6-25 2874 Butte Creek along Bull Hill Road 2.2 miles from the Skyway. 1508 Comment
  SD469  Carex athrostachya E. B. Copeland 1929-7-28 607 a Butte Jonesville; forming large dense tufts by irrigation ditch. 1550 Comment
  CHSC2105  Carex barbarae P. Mason 1937-5-15 Butte Fish wheel on Butte Creek. 91 Comment
  CHSC43914  Carex barbarae L. P. Janeway 1986-9-20 1882 Butte West side of Comanche Cr and north side of Ord Ferry Rd. 33 Comment
  CHSC47063  Carex barbarae L. P. Janeway 1989-5-13 3235 Butte Grassy mdw on E side of Concow Reservoir; along Concow Rd 5.2 mi N of Hwy 70. 629 Comment
  HSC87065  Carex barbarae L. P. Janeway, Heidi Wienert, Scott George 1988-7-27 3092 Butte Just W of Murphy Slough and Golden State Island near the Sacramento River 38 Comment
  CAS-BOT-BC19412  Carex bolanderi Lewis S. Rose 1963-6-5 63140 Butte North Fork of Feather River. Arch Rock Tunnel. 487 Comment
  CHSC103133  Carex bolanderi Lowell Ahart 2009-5-30 15790 Butte Along a small stream about 20 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
  CHSC52253  Carex bolanderi L. P. Janeway; R. A. Schlising 1988-7-16 3008 Butte Along Willow Creek 1/2 mi NW of Jonesville. 1508 Comment
  CHSC98951  Carex bolanderi Lowell Ahart 2008-6-2 14806 Butte On the south side of Ponderosa Way, about 1 mile (air) southwest of the Ponderosa Dam, about 2 1/4 miles (air) northwest of Forbestown. 670 Comment
  CHSC48543  Carex brainerdii L. P. Janeway 1987-6-8 2161 Butte Along French Cr ca 1/2 mi N of Bush Cr and near bridge of road to Coyote Gap. 640 Comment
  UCD140205  Carex brainerdii L. P. Janeway 1988-6-19 2829 Butte 2.4 miles north of Stirling City towards Inskip along logging road 0.1 mile west of Skyway. Steep west-facing roadcut. 1173 Comment
  JEPS116653  Carex crawei L. P. Janeway 2009-5-25 9796 Butte Campus of California State University, Chico Chico (between Merriam Library, the new student services building,and Warner Ave.); Sacramento Valley 59 Comment
  SEINET4289436 Image available Carex cusickii L. Janeway, Gog, L 2008-1 3197 A Butte Pat's Meadow. Along Butte Creek, 0.6 mi. W of Cherry Creek Campground. Comment
  CHSC82908  Carex cyrtostachya L. P. Janeway; B. Castro 2002-7-28 7689 Butte Northern High Sierra Nevada. Northwest side of Lumpkin Ridge Road 1.1 km southwest of junction with the road to Cascade; upper west branch of Know-Nothing Creek; 2.1 km south of top of Quartz Hill. 1231 Comment
  RSA0010332  Carex cyrtostachya P. F. Zika, Barbara L. Wilson, L. Ahart, L. P. Janeway 2011-8-5 25715 Butte Forest Road 20N03 (Moreville Ridge Road), 2 air miles SE of Sugar Pine Point, Pinkard Creek drainage, northern Sierra Nevada Highlands. 1075 Comment
  CHSC69651  Carex densa James D. Jokerst 1988-4-21 2999 Butte Parrot (Blakely-Swartz) Ranch S of Chico. Comment
  SEINET8027659 Image available Carex densa L. Janeway, Gog, L 2008-1 3183 (A & B) Butte Bidwell Park. Comment
  CAS-BOT-BC19848  Carex echinata H. F. Copeland 1932-7-17 s.n. Butte Jonesville. Comment
  CHSC107579  Carex feta Lowell Ahart 2011-8-23 17649 Butte In the large meadow, Pinkard Creek flows through the meadow east of the corral, about 1 miles north of Lost Creek Reservoir Dam, about 4 miles (air) northeast of Clipper Mills. 1133 Comment
  RSA770105  Carex feta L. P. Janeway, B. Castro 2009-7-4 9837 Butte Northern High Sierra Nevada. Along Four Trees Road 3.4 road km east of Coyote Gap; at head of minor drainage into Clear Creek, head of French Creek Basin. 1469 Comment
  SEINET10889103  Carex feta A. Arthur Heller 1913-6-4 Heller 10781 Butte Table Mountain Oliver Ranch north of Oroville. Comment
  UCD140345  Carex fracta L. P. Janeway; R. A. Schlising, B. Castro, P. Broyles 1987-7-19 2502 Butte Coon Hollow, 1.0 mile SE of the Humbug Summit Road. 1661 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
  CHSC52270  Carex infirminervia L. P. Janeway 1988-6-25 2867 Butte Along Coon Creek near Bull Hill Road 1.0 mi from Skyway. 1554 Comment
  SEINET4286036  Carex infirminervia Unknown 2009-1 s.n. Butte Just E of Philbrook Reservoir Comment
  CHSC113469  Carex integra Lowell Ahart 2014-7-10 19617 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1664 Comment
  CHSC52868  Carex integra L. P. Janeway 1988-6-19 2836 Butte 3.1 mi N of Stirling City towards Inskip; along logging road 0.2 mi W of Skyway. 1219 Comment
  CHSC43884  Carex laeviculmis L. P. Janeway 1987-6-26 2295 Butte At Rag Dump. Near Fall Creek. 1173 Comment
  UC532224  Carex lemmonii H. F. Copeland 1930-7-25 1362 Butte Jonesville 1524 Comment
  CHSC83295  Carex luzulina L. P. Janeway; B. Castro 2002-7-7 7607 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
  JEPS105678  Carex luzulina var. ablata L. P. Janeway 2002-5-26 7561 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
  CAS-BOT-BC32156  Carex multicaulis Herbert Faulkner Copeland 1931-6-10 1546 Butte Woods between Willow and Colby Creeks. Jonesville Comment
  CHSC105477  Carex multicaulis L. P. Janeway 2010-6-19 10017 Butte Northern High Sierra Nevada. About 1.2 km south of Bald Rock Dome near a saddle along the ridge between Middle Fork Feather River and Bean Creek drainage; along Bean Creek Road at spur road to Dome Trail trailhead. 858 Comment
  UC184078  Carex multicaulis A. A. Heller 1913-6-7 10794 Butte near Stirling 1036 Comment
  UC532223  Carex multicaulis H. F. Copeland 1931-6-10 1546 Butte woods between Willow Creek and Colby Creek; Jonesville Comment
  SEINET10713512  Carex multicaulis Lawrence P. Janeway 1988-6-19 Janeway 2830 Butte T24N, R4E, Stirling City quad. NW1/4 of sec. 16. 2.4 mi N of Stirling City towards Inskip, along dirt logging road 0.1 mi W of Skyway. W-facing roadcut of steep soft dirt. With C. brainerdii. 1173 Comment
  UCD140656  Carex multicaulis L. P. Janeway 1987-6-27 2368 Butte 2.0 mile west of Bald Mountain alng road to Stirling City. 1493 Comment
  CHSC45061  Carex multicostata Vernon Oswald 1988-6-30 3548 Butte At the end of a spur road on the w side of Humbug Rd. between Cold Springs and the summit. 1975 Comment
  CAS-BOT-BC119743  Carex nebrascensis L. P. Janeway 1987-7-4 2411 Butte Along West Branch Feather River at bridge 1.8 mi from Inskip. 1341 Comment
  SEINET10916378  Carex nudata A. Arthur Heller 1913-6-7 Heller 10818 Butte West branch of the North Fork of the Feather river near Stirling. 914 Comment
  CHSC43964  Carex pellita Vernon Oswald 1988-5-27 3344 Butte Rancho Aguas Frias. Nelson-West Rd. 2.1 mi w of Aguas Frias Rd. (Goodspeed-Watt Rd.). 30 Comment
  SEINET12649677 Image available Carex pendula Peter F. Zika 2010-1 24824 Butte 45 Comment
  CHSC44950  Carex praegracilis L. P. Janeway 1988-7-2 2943 Butte Marsh/mdw at upper reach of Brush Creek, ca 1.5 mi S of 'town' of Brush Creek. 952 Comment
  CHSC46420  Carex praegracilis Lowell Ahart 1989-5-28 6283 Butte In a mined over area 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
  SEINET10705318  Carex rostrata Lawrence P. Janeway, Robert A. Schlising; B. Castro; Pauleen Broyles 1987-7-19 Janeway 2503 Butte T26N, R4, Jonesville quad (15') SE1/4 of sec.36, Coon Hollow, 1.0 mi SE of the Humbug Summit Rd. Gently sloping meadows on N side of the creek. In soggy mossy meadow. Comment
  CAS-BOT-BC117542  Carex serratodens L. P. Janeway; C. A. Janeway 1986-10-12 1918 Butte Side canyon on N side of N Fk Feather River and along Hwy 70 ca 5 mi E of Jarbo Gap. 487 Comment
  JEPS110195  Carex simulata Lowell Ahart 2006-6-16 13011 Butte In the west edge of a large wet meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
  CHSC99392  Carex specifica Robert F. C. Naczi; Anton A. Reznicek 2006-8-1 11385 Butte Northernmost part of county, ca. 3.2 mi NNE of Jonesville, ca. 8 mi NE of community of Butte Meadows, N slopes of Humboldt Peak, near summit. 2120 Comment
  CHSC47143  Carex vesicaria Henricus Jansen 1989-7-15 Butte Snag Lake. Comment
  JEPS121962  Carex vesicaria Lowell Ahart 2014-7-7 19577 Butte North of the bog, Coon Hollow, about 2 miles (air) north of Philbrook Reservoir. Comment
  SEINET12569333 Image available Carex xerophila L. P. Janeway 2006-1 8595 Butte Northern Sierra Foothills: "Magalia Serpentine," east side of Coutolene Road, between that road and the first bend in the road down to Magalis Dam 707 Comment
  CHSC57514  Castilleja affinis Heather L. David 1990-4-24 57 Butte Ca. 0.7 mi ne of intersection of Coutolenc Rd. and Skyway, ca. 16 mi ne of Chico/ 701 Comment
  JEPS15597  Castilleja applegatei subsp. pinetorum Rimo Bacigalupi with Richard Hauke and Geo. Bacigalupi Jr. 1954-7-15 4723 Butte 0.5 mi below Nimshew (on Nimshew (Humbug) Road, along sides of Butte Canyon); Butte Canyon 701 Comment
  CAS-BOT-BC255461  Castilleja applegatei var. pinetorum A. A. Heller 1914-8-6 11646 Butte Chico Meadows 1219 Comment
  CHSC103933  Castilleja attenuata Lowell Ahart 2010-5-16 16689 Butte Open grasslands about 1/4 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 371 Comment
  CHSC118060  Castilleja attenuata Daphne K. Christopher; Hannah Stevens, Lowell Ahart 2003-4-21 232 Butte Off Hwy 99. Ahart Family Ranch along boundary on access road and edge of field. 41 Comment
  CHSC47694  Castilleja campestris subsp. campestris Lowell Ahart 1978-5-1 1689 Butte Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC3657  Castilleja exserta Robert D. Briggs 1966-4-12 R- 117 Butte 3 miles south of downtown Chico. Comment
  CHSC109610  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. 428 Comment
  CHSC114983  Castilleja lacera Lowell Ahart 2015-4-18 20042 Butte On the east side of Swedes Flat Road, about 1/2 mile southwest of Dutch Ravine, about 8 miles (air) southeast of Oroville. 384 Comment
  CHSC43767  Castilleja lacera Vernon Oswald 1985-5-20 1767 Butte Robinson Mill Rd. 1.8 mi s of Forbestown Rd. 609 Comment
  CHSC37278  Castilleja miniata M. S. Taylor; L. Ahart 1981-8-16 4195 Butte Jones Meadow, ca. 3 mi s of Philbrook Reservoir, ca. 6 mi ne of Stirling City. 1828 Comment
  CAS-BOT-BC48544  Ceanothus cordulatus E. B. Copeland 1929-7-14 382 Butte Jonesville 472 Comment
  CAS-BOT-BC48700  Ceanothus cordulatus Clarence R. Quick 1964-7-9 64 -68 Butte On dead-end road into Wildcat Creek east of Pulga Comment
  POM196018  Ceanothus cordulatus E. B. Copeland 1929-7-14 382 Butte Jonesville. 1550 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-BC50785  Ceanothus integerrimus B. D. Stark 1929-7-26 598 Butte Pardise Comment
  CHSC32834  Ceanothus integerrimus W. Michael Foster 1981-4-24 9 Butte Along both sides of Hwy 70, ca. 2 mi nw of Jarbo Gap and ca. 20 n of Oroville. 609 Comment
  SBBG28496  Ceanothus integerrimus E. B. Copeland 1929-7-14 Butte Jonesville 1650 Comment
  CAS-BOT-BC52004  Ceanothus prostratus E. B. Copeland 1930-3-29 s.n. Butte De Sabla 800 Comment
  CHSC86133  Ceanothus prostratus John Dittes; Josephine Guardino 2002-6-21 621 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
  POM195581  Ceanothus prostratus E. B. Copeland 1930-3-29 s.n. Butte De Sabla. Comment
  LA45120  Ceanothus velutinus E. B. Copeland; 1930-6-29 424 Butte Jonesville 1550.0 Comment
  POM181716  Ceanothus velutinus H. F. Copeland 1927-9-3 194 Butte Jonesville. Comment
  JEPS120068  Celtis australis Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18022 Butte On the north side of Big Chico Creek, south of the path, south of the paved park road, south of the old walnut orchard, south of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  UC179660  Centaurea benedicta A. A. Heller 1914-4-24 11416 Butte hills 8 mi n Oroville Comment
  UC1609220 Image available Centaurea jacea Lowell Ahart 1993-8-8 7154 Butte w side of La Porte Road about 2 mi sw Clipper Mills 1066 Comment
  RSA755755  Centaurea melitensis L. Ahart 2009-5-23 15769 Butte About 200 yards southwest of Pine Trail, Upper Bidwell park, about 1/3 air mile southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 382 Comment
  CHSC31966  Centaurea solstitialis S. Posner 1972-10-3 Butte Garden behind Trans Pacific Garden Apartments (725 Nord Ave.), Chico. Comment
  SEINET10454818  Centaurium Mary Susan Taylor 1980-6-29 Taylor 2993 Butte T23N R1E nw sec 20 Richardson Spring quad; ca. 1 mi E of Meridian Rd, ca. 4 mi N of Chico; Valley Grassland. 70 Comment
  CDA43076  Centaurium tenuiflorum L. P. Janeway 2011-6-26 10401 Butte Cascade Range Foothills/Sacramento Valley.; Upper Bidwell Park, Chico; just west of Horseshoe Lake. Comment
  CHSC650  Centaurium tenuiflorum R. M. Staley 1952-7-4 Butte Honey Run. 304 Comment
  CHSC30747  Centromadia fitchii M. S. Taylor 1980-8-15 3249 Butte Ca. 0.5 mi n of Oroville, on w side of Cherokee Rd, on se slope of South Table Mt. 243 Comment
  CHSC66838  Centromadia fitchii Vernon H. Oswald 1996-8-29 8248 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 northwest corner of Tract 5, Sanctuary II. 32 Comment
  CHSC62444  Cerastium arvense B. Castro 1991-4-29 441 Butte Ca 6.5 air mi ENE of Paradise, just upslope from 'Pulga' on W side of the Feather River. On N-facing edge of serpentine ridge near E end of ridge. 853 Comment
  CHSC100963  Cerastium glomeratum Lowell Ahart; Josephine Guardino, Steve Green 2009-2-20 15494 Butte Near the north side of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  CAS-BOT-BC388267  Cerastium glomeratum John Thomas Howell; Gordon H. True 1969-4-8 45488 Butte Paradise 518 Comment
  SD116545  Cercis occidentalis Barbara Ertter, Jeffrey Strachan and Lowell Ahart 1980-5-8 3318 Butte North Honcut Creek on Peter Ahart Ranch, 2.5 miles northeast of Honcut between Marysville and Oroville. 46 Comment
  SEINET10483775  Cercocarpus betuloides Mary Susan Taylor 1975-4-25 Taylor 499 Butte Ca. 1/4 to 1/2 mi E of Cohasset Hwy, along dirt rd leading up onto ridge, ca. 10 mi NE of Chico. Soil wet red clay. Mixed Chaparral. Comment
  CAS-BOT-BC137003  Cercocarpus betuloides var. betuloides Lowell Ahart 1987-7-3 5748 Butte Along the edge of Poe Power House Road, about 1 mile north-west of the Poe Power House, about 1 mile south-east of Jarbo Gap 548 Comment
  CHSC37621  Cercocarpus betuloides var. betuloides T. B. Devine 1979-7-8 584 Butte Along Hwy 32, ca. 1/2 mi below T. V. cable antenna, ca. 11 mi N of Chico. Comment
  UC1127838  Cercocarpus betuloides var. betuloides J. E. Sowder 1933-8-4 128 Butte slope above De Sable Power House 457 Comment
  UC859464  Chamaebatia foliolosa Lewis S. Rose 1937-6-10 37368 Butte Forbestown 838 Comment
  CHSC3617  Chamaecyparis lawsoniana John Francis 1966-2-17 16 Butte Campus, Chico State College, Chico. Comment
Read comments
Jul 25 2018
  CHSC38439  Chamaesyce maculata Vernon Oswald 1983-6-27 768 Butte Upper Bidwell Park, Chico, at the Horse Arena. 79 Comment
  CHSC44389  Chamaesyce maculata Lowell Ahart 1988-7-3 6120 Butte Along the edge of the dirt road, about 1/10 mile north of the large steel water standpipe, about 1 1/2 miles east of the Ponderosa Dam. 457 Comment
  SEINET10690232 Image available Chamaesyce ocellata A. Arthur Heller 1913-9-16 Heller 11140 Butte Hills near Big Chico creek, east of Chico. Comment
  CHSC112596  Chamaesyce ocellata subsp. ocellata Lowell Ahart 2013-9-5 19021 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
  CHSC51261  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 1990-10-21 6637 Butte Below the high water line of Lake Oroville, about 1 mile north of Nelson Bar Road, about 1/2 mile west of Gold Flat. 213 Comment
  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
  CAS-BOT-BC165955  Chamerion angustifolium H. F. Copeland 1920-8-29 143 Butte Jonesville 1219 Comment
  SEINET10529872  Cheilanthes cooperae Mary Susan Taylor 1979-3-20 Taylor 1956 Butte T21N R4E nw1/4 sec. 21. Cherokee Quad. Along old road on N side of Hwy 70 following West Branch of the Feather River, which begins at S side of bridge over N fork of Feather River, ca. 10 mi N of Oroville; limestone outcrops within Foothill Woodland. 305 Comment
  CAS-BOT-BC69449  Cheilanthes gracillima E. B. Copeland 1929-7-13 327 Butte Jonesville. 1700 Comment
  SEINET10529937  Cheilanthes siliquosa Mary Susan Taylor 1979-10-13 Taylor 2273 Butte T23N R4E e center sec 29. Serpentine outcrop on Jordan Hill Road (Ponderosa Way on some maps), ca. 11.1 mi N of its jct with Concow Road, 1.9 mi N of Sawmill Peak, ca. 2 mi NE of Magalia. With Jim Jokerst. 853 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
  UCSB64003  Chenopodium album Ahart, Lowell 1981-11-6 Butte About 1/8 mile east of the Gridley Bridge across the Feather River, about 2 miles west of Highway 70, about 4 miles east of Gridley 30 Comment
  UC1191352  Chenopodium ambrosioides Herbert L. Mason and Verne Grant 1946-8-14 13026 Butte Sacramento Outing Club Butte Sink (canal near big pond) Comment
  CDA3060  Chenopodium ambrosioides T. C. Fuller 1962-12-7 9955 Butte Hipp Ranch, end of Oliva Avenue, 0.5 miles east of Mt Ida Road, ca. 7 miles east of Oroville. 0 Comment
  SEINET10479039  Chenopodium ambrosioides Mary Susan Taylor 1980-10-6 Taylor 3358 Butte T23N R5E se sec 15, Pulga quad. S side of Hwy 70, ca. 0.4 mi W of Bear Creek jct with N Fork Feather River, ca. 0.5 mi W of Arch Rock Tunnel Rest Stop, near Butte-Plumas county line; granitic soils. 488 Comment
  RSA725001  Chenopodium botrys L. Ahart 2006-9-11 13282 Butte South edge of the North Fork of the Feather River, North side of Highway 70, About 1/8 mile west of the Poe Dam, About 3/4 mile northeast of Pulga, About 21 miles (air) northeast of Oroville. 432 Comment
  UCR188501  Chenopodium missouriense George K. Helmkamp, E. A. Helmkamp 2007-10-7 13065 Butte Northern Sacramento Valley, East Gridley Road at the west edge of the Feather River bridge 27 Comment
  CHSC34047  Chenopodium murale L. Ahart 1981-7-26 3002 Butte On sides of large deep ditch near the dirt rd, 1/10 mi w of Pennington Rd on the dirt rd that leads to the Graylodge Waterfowl Mgmt HQ, ca. 12 mi sw of Gridley. 35 Comment
  CHSC117324  Chenopodium pratericola B. Castro; Melinda Carlson 2007-10-25 1682 Butte Sacramento Valley. Confluence of Big Chico Creek and Sacramento River, W of River Road and north of the creek adjacent to surrounding riparian forest. Arroyo Chico land grant area. 36 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
  RSA0058878  Chenopodium strictum var. glaucophyllum Lowell A. Ahart 2008-7-23 15147 Butte On the north edge of the South Fork of the Feather River, about 10 yards east of where Sucker Creek enters the South Fork of the Feather River, below the high water line of Lake Oroville, about 1/4 mile west of the Ponderosa Dam. 258 Comment
  UC1586525  Chenopodium vulvaria Lowell Ahart 1991-8-17 6703 Butte Durham Elementary School Durham (native plant garden) 54 Comment
  CAS-BOT-BC451487  Chimaphila umbellata Lowell Ahart 1989-5-29 6310 Butte S. side of gravel road to the Forbestown Reservoir, about 1 mile NE of Forbestown Rd., about 2.5 miles NE of Forbestown 822 Comment
  CHSC103702  Chlorogalum angustifolium Lowell Ahart 2010-5-14 16639 Butte Along the east side of the poor dirt road, parking area, about 100 yards north of the entrance to the Disc Golf Area, west side of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 394 Comment
  CHSC87541  Chlorogalum angustifolium R. D. Fischer; Jenny Marr 2004-4-27 137 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located at north end of Disk Golf Course, near the top of the north-connecting trail going down toward Guardian Trail. Scattered throughout Disk Golf Course. 381 Comment
  CDA20065  Chondrilla juncea E. Finley 2002-10-2 PDR 1035510 Butte Northern California; Lumpkin Rd near Enterprise Bridge. 0 Comment
  CHSC84240  Chondrilla juncea Lowell Ahart 2003-7-10 10372 Butte On the north slope of Ponderosa Dam, about 2 miles (air) northwest of Forbestown. 296 Comment
  CAS-BOT-BC252668  Chorizanthe membranacea Lewis S. Rose 1945-5-12 45014 Butte Richardson Springs 304 Comment
  CAS-BOT-BC252673  Chorizanthe membranacea David D. Keck 1933-5-30 2406 Butte 3.0 miles southwest of Richardson Springs Comment
  RSA500441  Chorizanthe polygonoides Vernon H. Oswald 1989-5-16 3771 Butte Ponderosa way on Musty Buck Ridge between Cohasset and Big Chico Creek 762 Comment
  CHSC103687  Chorizanthe stellulata Lowell Ahart 2010-4-30 16604 Butte Open area along a ridge, on both sides of a trail, west of disk golf area, on a ridge about 350 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 353 Comment
  CHSC103960  Chorizanthe stellulata Lowell Ahart 2010-5-23 16735 Butte On the west side of Pine trail, about 40 yards west of Highway 32, about 9 miles (air) northeast of Chico. 478 Comment
  CHSC70994  Chorizanthe stellulata Vernon 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. 452 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
  CHSC39301  Cichorium intybus Lowell Ahart 1983-6-26 4125 Butte Along Ponderosa Way, California. Found growing on dry red rocky soil along Ponderosa Way, about 2 miles south-east of the intersection of the Oroville Quincy Highway and Ponderosa Way, about 15 miles north-east of Oroville, California. Note: the sign gives Big Ridge Road instead of Ponderosa Way. 500 Comment
  CAS-BOT-BC184836  Cinna latifolia Lowell Ahart 1983-8-16 4287 Butte Sierra Nevada. One mile east of Butte Meadows. Along a small stream that flows into Butte Creek. 1450 Comment
  UC1131370  Cinna latifolia H. S. Yates 1936-8-13 6098 Butte Butte Meadows; Paynes Creek Quadrangle Comment
  CHSC28953  Circaea alpina subsp. pacifica M. S. Taylor 1978-7-21 1817 Butte On s side of Oroville-Quincy Hwy along creek in a meadow, ca. 14 mi n of Lake Madrone. 1463 Comment
  CAS-BOT-BC285282  Cirsium andersonii A. A. Heller 1914-8-6 11640 Butte About Chico Meadows 1219 Comment
  RSA0070561  Cirsium andersonii E. B. Copeland 1931-7-27 693 Butte Jonesville. 1650 Comment
  UCD130510  Cirsium andersonii E. B. Copeland 1931-7-27 693 Butte Jonesville. 1650 Comment
  SEINET179234  Cirsium breweri E. B. Copeland 1930-7-28 488 Butte Jonesville 1600 Comment
  CHSC94463  Cirsium douglasii var. breweri Lowell Ahart 2006-8-15 13188 Butte East part of a large meadow with bogs, 15 yards west of Willow Creek, about 100 yards southeast of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1569 Comment
  UC397531  Cirsium vulgare E. Bleopelaud 1929-7-1 Butte Jonesville 1650 Comment
  CAS-BOT-BC438981  Cistanthe monosperma A. A. Heller 1915-6-11 11966 Butte Chico Meadows in the Sierra Nevada 1219 Comment
  RSA774139  Cistanthe monosperma L. Ahart 2010-9-28 17251 Butte About 20 yards west of Big Kimshew Creek, about 100 yards east of the poor dirt road, about 1.5 air miles northeast of Jones Meadow, about 2.5 air miles southeast of Philbrook Reservoir. 1887 Comment
  CAS-BOT-BC163578  Clarkia biloba subsp. biloba Mrs. H. C. Cantelow 1940-5-10 4033 Butte 7 mi. E. of Oroville. Old rd. to Bucks Lake Comment
  CAS-BOT-BC164522  Clarkia gracilis subsp. albicaulis Frances Brown 1934-1-1 s.n. Butte Mountains above Chico Comment
  CHSC1103  Clarkia gracilis subsp. albicaulis R. Carter 1964-6-15 125 Butte Feather R. Canyon, 3/4 mi. E of Pulga turnoff on Hwy. 40A on S side of highway. 609 Comment
  SEINET10453151  Clarkia gracilis subsp. albicaulis Mary Susan Taylor 1977-6-25 Taylor 1380 Butte Foothill Woodland-Yellow Pine Forest transition zone, on Ponderosa Way betwe en Cohasset and Forest Ranch. 610 Comment
  CHSC46131  Clarkia gracilis subsp. gracilis Lowell Ahart 1975-5-12 755 Butte On dredger piles, along North Honcut Creek, Peter Ahart Ranch, about 3/4 mile north and 2 1/2 miles east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC88628  Clarkia mildrediae subsp. lutescens Linnea Hanson 1983-8-3 207 Butte Plumas National Forest. Little North Fork Road. 1219 Comment
  CHSC1104  Clarkia mildrediae subsp. mildrediae V. Holt 1935-5-28 Butte Butte Creek. 243 Comment
  CAS-BOT-BC163354  Clarkia mosquinii L. P. Janeway 1995-7-7 4835 Butte Along Hwy 70 1.9 mi northeast of Jarbo Gap. Southeast-facing road cutbank through steep mid-slope of North Fork Feather River canyon 649 Comment
  RSA122147  Clarkia purpurea subsp. purpurea F. W. Embree 1934-4-24 43 Butte 4.5 miles north and 1.5 mile east of Bigg 38 Comment
  CHSC1111  Clarkia purpurea subsp. viminea M. Roberson 1956-5-14 Butte SW of Paradise, along Skyway. 426 Comment
  CHSC48629  Clarkia purpurea subsp. viminea Vernon Oswald 1988-6-14 3377 Butte Jordan Hill Rd. between Coutolenc Rd. and the West Branch of the Feather River. 512 Comment
  CHSC88061  Clarkia purpurea subsp. viminea R. D. Fischer 2004-5-30 187 Butte Northern Sierra Nevada, 4-5 airmiles n. of Paradise, and w. of upper Paradise Pines. Turn w. off Skyway Road on Nimshew Road and take the s. turn on Centerville Road (on older maps Humbug Road), ca. 3.0 miles s. of this junction. UTM: 10616846E 4407606N. 420 Comment
  CAS-BOT-BC172379  Clarkia purpurea subsp. viminea L. P. Janeway 1993-6-23 4400 Butte North side of French Creek, 0.5 mi west of mouth of Ram Creek, north side of Rd. 22N34, Plumas National Forest, Oroville Ranger District, Swayne Hill Compartment (non-Forest land) 615 Comment
  CAS-BOT-BC164778  Clarkia rhomboidea Lowell Ahart 1982-6-15 3581 Butte About 1 1/2 miles east of Camp 18, about 8 miles east of Feather Falls 1000 Comment
  UC600558  Clarkia rhomboidea H. F. Copeland 1931-6-10 1520 Butte crest between Colby Creek and Willow Creek; Jonesville 1676 Comment
  UCD85105  Clarkia rhomboidea Dena Grossenbacher; Joel Smith 2009-6-22 1062 Butte 1.4 miles south of Arch Rock along Highway 70 next to the Feather River. 453 Comment
  SEINET10689268  Clarkia rhomboidea A. Arthur Heller 1928-5-27 Heller 14562 Butte Paradise in red clay soil at the sawmill on the Neal Road near the lower limit of the yellow pine belt. Comment
  CHSC1116  Clarkia unguiculata R. Carter 1964-5-27 103 Butte Ca. 5 mi. E of Oroville on Old Quincy Rd. 100 yds. W of Glenn Dr. on S side of road. 91 Comment
  JEPS110202  Claytonia palustris Lowell Ahart 2006-7-16 12987 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
  RSA65644  Claytonia palustris F. W. Peirson 1926-6-21 6774 Butte Butte Meadow, Humboldt Road Comment
  UC1539068  Claytonia palustris John R. Swanson 1959-7-4 490 Butte meadow above south bank of Jones Creek (0.4 km e of Jonesville Hotel); Jonesville; Jonesville, Butte Co., above S bank of Jones Creek, E of the Jonesville Hotel. 1550 Comment
  CHSC33699  Claytonia parviflora subsp. parviflora L. Ahart 1981-4-9 2756 Butte On dry grassy soil on banks of North Honcut Creek, Peter Ahart Ranch, ca. 1 mi n and 3 mi e of Honcut. 50 Comment
  JEPS114966  Claytonia parviflora subsp. parviflora Lowell Ahart 2008-5-8 14718 Butte Below the high water line of Lake Oroville, about 300 yards south of the poor parking area, on the west side of McCabe Creek, about 3/4 mile southwest of the Enterprise Bridge, about 11 miles (air) east of Oroville 259 Comment
  UC204570  Claytonia parviflora subsp. parviflora A. A. Heller 1914-4-6 11240 Butte 12 mi from Chico (Chico-Oroville road, on the banks of Dry Creek); Dry Creek Comment
  CAS-BOT-BC439772  Claytonia perfoliata Peter H. Raven 1954-4-17 6622 Butte 18 miles above Oroville on road to Pulga. Comment
  CHSC55395  Claytonia perfoliata subsp. perfoliata C. G. Morris 1991-4-18 15 Butte Small population 60 yds n of Castle Dr., 0.6 mi w of Oliver Rd., Paradise. 533 Comment
  CHSC33589  Claytonia rubra subsp. rubra M. S. Taylor 1981-4-28 3564 Butte N side of rd 23N28.2 in loop of rd, ca. 1.2 mi w of Chino Creek, ca. 4 air mi e of Jarbo Gap on Hwy 70, ca 23 air mi nw of Oroville. 929 Comment
  HSC73101  Claytonia rubra subsp. rubra D. G. Bendix 1978-4-15 14 Butte 0.8 km S of jct. of Holmwood Dr. with Rosewood Dr., Magalia 850 Comment
  CHSC52782  Clematis lasiantha Neal Schaeffer 1982-4-18 10 Butte Between Pentz Rd and Kunkle Reservoir, ca. 20 m from road, 50 m n of reservoir access road. 450 Comment
  SEINET12092019  Clematis ligusticifolia L. Ahart, Ahart, P. 1983-1 4215 Butte T20N R7E ne sec 32. At the Forbestown Reservoir, ca 5 mi ne of Forbestown. Yellow Pine Forest 450 Comment
  SEINET10469618  Clintonia uniflora Mary Susan Taylor 1982-6-24 Taylor 4745 Butte T23N R4E ne/nw sec 13. Pulga SW quad. Rag Dump 5, ca. 2 mi n of Flea Mt, ca. 10 mi n of Jarbo Gap on Hwy 70. Elev ca. 3800 ft. 1158 Comment
  CHSC29820  Collinsia sparsiflora M. S. Taylor 1980-4-16 2482 Butte Lake Oroville State Recreation Area, Parish Camp (about 1/2 s of it), just south of Lime Saddle Memorial Park, ca. 5 mi s of Paradise. 304 Comment
  JEPS119840  Collinsia sparsiflora var. collina Lowell Ahart 2012-3-23 17784 Butte On the sides of the trail down to Big Chico Creek, about 50 yards west of Ten Mile House Road, about 3/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  UC725864  Collinsia sparsiflora var. collina A. A. Heller 1942-4-26 Butte halfway from Cherokee to Oregon City road Cherokee; Table Mountain Comment
  UC1586405  Collinsia sparsiflora var. collina Lowell Ahart 1991-8-8 6643 Butte On a steep slopoe on the W side of north Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles N and 2 annd 3/4 miles E of Honcut, about 12 miles SE of Oroville. Foothill Woodland. 45 Comment
  CHSC1738  Collinsia tinctoria V. Holt 1931-6-3 Butte Forest Ranch. 548 Comment
  CHSC84862  Collinsia tinctoria L. P. Janeway; John Hunt 2003-6-6 7814 Butte Northern Sierra Nevada Foothills. East-southeast facing slope above Lake Oroville 350 m northeast of the north end of Bidwell Bar Bridge. 296 Comment
  JEPS103388  Collinsia tinctoria Lowell Ahart 2002-6-21 9732 Butte On a road cut bank, Watson Ridge, ca 2 miles (air) NE of Bald Rock Dome, ca 5 miles (air) N of Feather Falls (the town). 1086 Comment
  POM252812  Collinsia tinctoria A. A. Heller 1938-5-28 15119 Butte On the Feather River Highway 23 miles from Oroville. Comment
  POM183150  Collomia grandiflora E. B. Copeland 1930-6-26 1312 Butte Neighborhood of Jonesville. Butte Creek Canyon 1677 Comment
  CHSC34597  Collomia heterophylla R. A. Schlising; P. Broyles 1979-5-15 3405 Butte NW of Concow Reservoir at Griffin Gulch. Roadside. 640 Comment
  SEINET12329580  Collomia heterophylla L. Ahart, Ahart, P. 1984-1 4694 Butte about 2 mi SW of Forbestown Diversion Dam, NE of Forbestown, Yellow Pine Forest 700 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
  CHSC43702  Collomia tinctoria Vernon Oswald 1983-7-6 817 Butte Beside Humboldt Rd. (to Butte Meadows) 3.3 mi n-e of its jct. with Calif. Hwy. 32. 1432 Comment
  SEINET10544540  Comandra umbellata subsp. californica Mary Susan Taylor, Vernon H. Oswald 1984-4-4 Taylor 5373 Butte T22N R2E nw sec 25. Along Humbug Rd, ca. 0.5 mi E of Honey Run Covered Bridge, ca. 6 air mi E of Chico. Foothill Woodland/Riparian Woodland; 600 ft elev. 183 Comment
  SEINET10454740  Conium maculatum Mary Susan Taylor 1982-4-28 Taylor 4357 Butte T17N R1E se/sw sec 13. Pennington qud. Graylodge Wildlife Refuge, n side of Rutherford Rd, ca. 1/2 mi w ofits jct with Pennington Rd, ca. 12 mi sw of Gridley. 70 ft. 21 Comment
  CHSC78072  Convolvulus arvensis Shelly Pirtie 1997-4-25 34 Butte 20 miles south of Chico off of Biggs-Afton Road: Little Dry Creek. Comment
Read comments
Jun 19 2009
  CAS-BOT-BC286063  Conyza canadensis A. A. Heller 1914-8-13 11680 Butte 8 miles north of Oroville Comment
  CAS-BOT-BC288956  Conyza floribunda John Thomas Howell 1959-9-20 34632 Butte Eastern outskirts of Oroville 60 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
  JEPS81608  Cordylanthus tenuis subsp. viscidus M. S. Taylor 1982-8-16 4990 Butte s end Stirling City (along both sides of the Skyway) 1036 Comment
  UC455443  Cornus nuttallii Miss Kate Conger 1907-1 Butte Brush Creek Comment
  CDA13876  Cornus sessilis G. F. Hrusa, T. D. Wilfred 1997-5-7 13734 Butte Sierra Nevada; Little Butte Creek above Magalia Reservoir, N of Magalia, iImmed. E of Holmwood Drive. Comment
  CDA4039  Coronilla varia L. Ahart 2006-6-24 12862 Butte On the east side of the dirt road (Ponderosa Way), south of an intersection, a gated road goes southeast, on Cohasset Ridge, about 4 miles (air) northeast of Cohasset. Comment
  CHSC50322  Coronilla varia Vernon Oswald 1990-6-2 4278 Butte Butte County Center along Nelson Ave, Thermalito. 79 Comment
  POM181520  Corydalis caseana H. F. Copeland 1927-9-4 758 Butte Jonesville. Comment
  CAS-BOT-BC401847  Corydalis caseana subsp. caseana H. F. Copeland 1920-8-2 203 Butte In Butte Creek 1676 Comment
  RSA0076091  Cotoneaster pannosus L. Ahart 2009-5-30 15802 Butte On the south side of Ten Mile House Road, Upper Bidwell Park, about 1/2 air mile southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 311 Comment
  CHSC42099  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
  CHSC65991  Crassula aquatica Vernon H. Oswald 1996-4-20 7405 Butte U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. On the W end of the S paddock of Tract 7, Sanctuary II. Sacramento River National Wildlife Refuge, Llano Seco Unit. 32 Comment
  SEINET10449717  Crassula muscosa Mary Susan Taylor 1980-4-16 Taylor 2492 Butte T21N R4E s sec 17 Cherokee quad. Lake Oroville State Recreation Area, up to 0.5 mi SE of Parish Camp, just S of Lime Saddle Memorial Park, ca. 5 mi S of Paradise; Foothill Woodland. 305 Comment
  CAS-BOT-BC427957  Crassula tillaea Lowell Ahart 1979-5-11 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  POM356318  Crepis acuminata M. M. Boney 1897-1 s.n. Butte [Unspecified] Comment
  POM219379  Crepis occidentalis subsp. pumila H. F. Copeland 1931-6-11 1532 Butte Jonesville; near Butte Creek Meadows 1829 Comment
  CHSC41357  Crucianella angustifolia R. A. Schlising; J. D. Jokerst 1980-7-2 3816 Butte NW of De Sabla, 0.75 miles SW of crossing of Butte Creek. 658 Comment
  JEPS110271  Crucianella angustifolia Lowell Ahart 2006-6-9 12645 Butte On the south side of the service road to Bardees Bar along the North Fork of the Feather River, about 1/8 mile east of Highway 70, about 2 3/4 miles (air) southwest of Pulga 435 Comment
  CAS-BOT-BC190091  Crypsis schoenoides Lowell Ahart 1982-7-10 3672 Butte Sierra Nevada. On bottom of a dry duck pond, ca. 0.25 mile southeast of Gray Lodge Headquarters, ca. 13 miles southwest of Gridley. 35 Comment
  CHSC151  Cryptantha S. Ptomey 1929-3-26 Butte Chico Golf Links. 60 Comment
  RSA718071  Cryptantha affinis L. Ahart 2006-7-16 13000 Butte On the west side of the poor dirt road, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1525 Comment
  CDA40494  Cryptantha affinis T. C. Fuller 1962-7-12 9169 Butte Road to Jonesville, 2 miles east of Butte Meadows. 0 Comment
  CAS-BOT-BC249066  Cryptantha flaccida George K. Helmkamp; E. A. Helmkamp 2012-4-14 18766 Butte Northwestern Sacramento Valley: entrance to Oroville Wildlife Area, 0.2 mile west of CA-70, near the Feather River 46 Comment
  CHSC46753  Cryptantha flaccida Lowell Ahart 1984-5-19 4609 Butte On a small hill a little east of Kunkle Creek, about 1/2 mile north of Kunkle Reservoir, about 2 miles south of Paradise. 548 Comment
  CHSC29286  Cryptantha intermedia R. A. Schlising 1980-5-4 3579 Butte Along Lunt Road, 1/4 mi n of jct with Hwy 70, north of Hwy 70 crossing Lake Oroville. Comment
  CHSC78128  Cryptantha intermedia Lowell Ahart 2000-5-31 8421 Butte A serpentine ridge, about 200 yards east of where Kunkle Creek enters Lake Oroville, east of the Kunkle Power House, about 3 miles southeast of Paradise. 335 Comment
  RSA718310  Cryptantha intermedia L. Ahart 2006-6-9 12656 Butte On the north side of Bardees Bar Road, east of the large stream, about 1/10 mile north of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga. 355 Comment
  CHSC39026  Cryptantha milobakeri R. A. Schlising; J. Jokerst, M. Foster 1983-5-24 4413 Butte Bald Rock Dome in e-central part of county. 975 Comment
  CHSC35069  Cryptantha torreyana R. A. Schlising 1981-7-14 4149 Butte NE part of county, near Humbug Summit, at Willow Creek and Meadow. 1950 Comment
  UC600569  Cryptogramma acrostichoides E. B. Copeland 1930-7-12 Butte Jonesville, Upper Butte Creek area Jonesville 1800 Comment
  CAS-BOT-BC85565  Cupressus macnabiana C. B. Wolf; E. R. Johnson 1934-10-5 6161 Butte Sierra Nevada Foothills, At Magalia 701 Comment
  CAS-BOT-BC85568  Cupressus macnabiana Lowell Ahart 1985-6-30 5094 Butte South of road to Forbestown Res., 100 yards south of the Forbestown Ditch, about 2 1/2 miles north-east of Forbestown. 899 Comment
  NY43612  Cupressus macnabiana S. Bianco 1995-11-2 1048 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
  SEINET10531457  Cupressus macnabiana Mary Susan Taylor 1981-4-8 Taylor 3503 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
  SEINET10966021  Cupressus macnabiana Mary Susan Taylor 1975-5-9 Taylor 568 Butte Abundant in serpentine area, ca. 50 ft E of the Skyway, ca. 1/4 mi N of DeSabla turnoff, Magalia; with Arctostaphylos sp. 732 Comment
  SEINET229238  Cuscuta B. Ertter, J Strachan; L. Ahart 1980-5-8 3325 Butte Peter Ahart Ranch ca 2.5 mi NE of Honcut between Marysville & Oroville 30 Comment
  RSA312628  Cuscuta californica H. L. Mason, Verne Grant 1946-9-27 13132 Butte Graylodge Game Refuge, Butte Sink Comment
  SEINET10496602  Cuscuta californica Lowell Ahart 1991-9-6 Ahart 6711 Butte On the north side of Rutherford Road, about 1/8 mile west of Pennington Road, east of Parking Area 5, Gray Lodge Waterfowl Management Area, about 10 miles south- west of Gridley. Freshwater Marsh. T17N R1E S13. 30 Comment
  CHSC105824  Cuscuta californica var. breviflora Lowell Ahart 2010-9-21 17232 Butte On the south side of a poor dirt road, about 1 mile (air) northeast of Jones Meadow, about 2-1/2 miles (air) southeast of Philbrook Reservoir. 1899 Comment
  CHSC62449  Cuscuta californica var. breviflora B. Castro 1987-5-18 107 Butte Ca 9 mi e of Chico via Hwy 32 and 2 mi E on Altatina Drive. 438 Comment
  CHSC50831  Cuscuta californica var. californica Vernon Oswald; Lowell Ahart 1990-7-19 4368 Butte Slope on the south side of Philbrook Creek, ca. 3 mi east of Philbrook Reservoir, ca. 0.5 mi west of the Plumas County line. 2026 Comment
  RSA795883  Cuscuta campestris L. Ahart 2012-8-22 18423 Butte South side of the Railroad Signal Box, east side of the railroad, about 20 yards south of Central House Road, about 2 air miles northwest of Honcut. 36 Comment
  UCD169293  Cuscuta campestris Lowell Ahart 2006-10-1 13388 Butte About 12 miles (air) southeast of Oroville, about 2 1/2 miles north and 2 3/4 miles east of Honcut, west of North Honcut Creek. 54 Comment
  CHSC94088  Cuscuta pentagona R. Fischer 2005-10-2 681 Butte Chico. Collected from Bidwell Park from the Diversion Channel just below the Lindo Channel split. Plants growing in the soil deposited above the dragon teeth. 60 Comment
  CHSC100108  Cuscuta subinclusa L. P. Janeway; Shandin Rudesill 2008-8-5 9534 Butte Northern High Sierra Nevada. Plumas National Forest; upper end of Magee Ridge at a small gap between Heinz Creek and Hibbard Creek; 2.7 air km north of Coyote Gap. 1353 Comment
  JEPS105911  Cymopterus terebinthinus var. californicus Lowell Ahart 2004-8-2 11334 Butte On both sides of the dirt County Road, between the Sky High Mine and Dresser Camp, about 2 miles (air) southeast of the Philbrook Reservoir Dam, about 7 miles (air) southeast of Butte Meadows 1912 Comment
  CHSC29242  Cynoglossum grande M. S. Taylor 1980-5-8 2617 Butte Ca. 3 mi n of Forest Ranch, ca. 1 mi e of Hwy 32. 853 Comment
  JEPS124403  Cynosurus echinatus Lowell Ahart 2015-6-16 20226 Butte About 4 miles (by road) northwest of Fall River Bridge, about 5 1/2 miles (air) northwest of Camp 18, about 9 miles (air) northeast of Feather Falls. Comment
  RSA755042  Cynosurus echinatus L. Ahart 2009-5-15 15674 Butte About 80 yards W of the dirt road that is Ten Mile House Road, Upper Bidwell Park, about 2/3 air mile W of Highway 32, about 10 miles NE of Chico. 271 Comment
  SEINET10507676  Cynosurus echinatus Lowell Ahart, Peter Ahart 1983-6-12 Ahart 4035 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
  UC907516  Cyperus albomarginatus John E. Chattin and Carroll Ferrell 1946-10-15 Butte 8 mi. n.e. Butte City 30 Comment
  CDA13836  Cyperus difformis G. F. Hrusa, T. D. Wilfred 1996-9-5 13564 Butte Butte Basin; Adjacent to Durnel Road north of Nelson Rd. Comment
  JEPS113500  Cyperus difformis Lowell Ahart 2007-7-8 14268 Butte On the east side of North Honcut Creek, Peter Ahart Ranch, about 3/4 miles north and 2 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville 45 Comment
  CAS-BOT-BC114605  Cyperus eragrostis Lowell Ahart 1987-7-17 5833 Butte On a sand bar along the North Fork of the Feather River, 271 Comment
  CHSC28865  Cyperus eragrostis J. D. Jokerst; T. B. Devine, D. Greenstein 1979-5-18 432 Butte Along edges of first drainage north west of jct of east edge of Mt and Cherokee Rd. Top of North Table Mt. Comment
  CHSC68385  Cyperus eragrostis L. P. Janeway 1996-5-27 4980 Butte Along Durham-Pentz Road 0.7 mi east of Clark Road. 118 Comment
  CHSC84153  Cyperus eragrostis Lowell Ahart 2003-6-30 10329 Butte Near the small stream, on the west side of Ponderosa Way, about 1 1/2 miles (by road) southwest of the Ponderosa Dam, about 2 miles (air) northwest of Forbestown. 404 Comment
  OBI49299  Cyperus eragrostis Lewis S. Rose 1939-6-11 39277 Butte 6 mi E of Honcut 137 Comment
  UCSC000115  Cyperus eragrostis H. S. Yates 1936-8-19 6121 Butte 10 miles south of Durham - Chico 30 Comment
  SEINET10466872  Cyperus eragrostis Mary Susan Taylor 1979-10-3 Taylor 2223 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
  UCSB63744  Cyperus eragrostis Ahart, Lowell 1998-6-30 Butte T20N, R4E, NE1/4 Section 17; west of lone oak tree; west of cow shute on the west side of Cherokee Road; North Table Mountain; about 7 miles (air) north of Oroville 403 Comment
  CHSC21134  Cyperus erythrorhizos M. S. Taylor 1975-10-3 940 Butte Sandbar on Sacramento River, ca. 10 mi w of Chico. Bidwell River State Park at Chico Landing. 36 Comment
  JEPS103335  Cyperus erythrorhizos Lowell Ahart 2002-10-17 9997 Butte Bottom of a wash, between the gentle hills below the high water line of Lake Oroville, ca 1 1/2 miles S of Highway 162 (Oroville Quincy Highway), ca 3 miles (air) NE of Oroville Dam. 227 Comment
  JEPS95884  Cyperus flavescens Lowell Ahart 1999-8-13 8143 Butte about 1 mile southeast of Ord Ferry; Chico; northwest of Parrott Landing; about 1 mile southeast of Ord Ferry; about 2 miles southeast of Ordbend; about 12 miles (air) southwest of Chico 32 Comment
  UCD16182  Cyperus flavicomus Joe DiTomaso 2000-8-30 s.n. Butte University of California Biggs Rice Research Station, near corner of Riceton and Hamilton Roads. Comment
  SBBG128797  Cyperus iria L. Ahart 2012-10-5 18476 Butte S edge of parking area at the restroom, end of rd to the Larkin Rd Boat Launch Area, ca. 0.25 mi W of Larking Rd, ca. 2 mi (air) SW of the Oroville Airport 28 Comment
  CHSC28662  Cyperus niger J. D. Jokerst 1979-10-12 376 Butte 50 met. S. of Big Chico Cr., 1.0 mi. N.E. of end of Upper Bidwell Park Rd. 213 Comment
  SEINET3478064  Cyperus niger Unknown 2000-6-17 8482 Butte Paradise, Paradise, about 2 miles south, about 0.25 miles northeast of Kunkle reservoir, east of the Pentz Magalia Road 540 Comment
  CAS-BOT-BC114080  Cyperus squarrosus A. A. Heller 1917-7-28 1817 Butte Butte Meadows. 1280 Comment
  CAS-BOT-BC114201  Cyperus strigosus Lowell Ahart 1987-9-24 5901 Butte Along the North Fork of the Feather River, near the Poe Power House, 271 Comment
  CAS-BOT-BC114210  Cyperus strigosus John Thomas Howell 1959-9-20 34636 Butte Lower foothills, eastern outskirts of Oroville. 60 Comment
  CHSC34197  Cyperus strigosus J. D. Jokerst; L. Ahart 1981-9-26 1494 Butte Swale ca 100 m E of Sacramento River at the Bidwell River State Park (Chico Landing) ca 5.0 mi W of Chico. Comment
  CHSC68410  Cyperus strigosus L. P. Janeway 1986-9-20 1874 Butte At edge of gravel bar along east side of Sacramento River; just southeast of the Ord Ferry Road bridge. 28 Comment
  CHSC68420  Cyperus strigosus L. P. Janeway 1988-6-29 2904 Butte Spring where Crouch Ravine fades into Coon Ridge; 1/4 mi south of the Skyway, 2.9 mi east of the Skyway bridge over Butte Creek. 170 Comment
  CHSC57332  Cystopteris fragilis Robert C. Hill 1990-4-10 6 Butte At intersection of McCabe Creek, Lumpkin Road, 1 mi s of South Fork Feather River, 13 mi e of Oroville. 396 Comment
  CHSC69105  Cystopteris fragilis Lowell Ahart 1997-8-1 7766 Butte On the east side of Little Kimshew Creek, where the basalt is eight sided. Snow Meadow, about 1/4 mile east of Table Mountain, about 8 miles (air) northeast of Stirling City. 1524 Comment
  JEPS106116  Cystopteris fragilis Lowell Ahart 2004-6-22 11116 Butte On the east side of Doe Mill Road, about 1/4 mile southeast of the bridge across Butte Creek, about 2 1/4 miles (air) southeast of Forest Ranch, about 5 miles (air) west of Stirling City 628 Comment
  UC600566  Cystopteris fragilis H. F. Copeland 1932-7-24 Butte gulch draining into Butte Creek meadows Jonesville 1800 Comment
  CDA42881  Dactylis glomerata L. Ahart 2012-5-23 18107 Butte Along the horse trail, north of Table 32, about 50 yards south of Vallombrosa Avenue, southwest of Crister, Lower Bidwell Park, Chico. Comment
  SEINET4566566  Danthonia californica R. McKee, H. Westover 1918-6-15 814860 Butte Paradise Comment
  CHSC39662  Danthonia unispicata Lowell Ahart 1983-6-21 4093 Butte Found along Boomer Hill Road, about 1 1/4 miles west of the Oroville Quincy Highway, about 15 miles north-east of Oroville. 450 Comment
  CHSC23704  Darmera peltata M. S. Taylor 1976-5-5 1119 Butte Along Bear Creek, ca. 1/4 mi s of Hwy 70, by the waterfall, ca. 30 mi ne of Oroville. Comment
  CHSC87576  Darmera peltata R. D. Fischer 2004-5-2 127 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located on margins of Big Chico Creek near bottom of 10 Mile House Road. 192 Comment
  SEINET10546583  Datura meteloides Lowell Ahart 1985-9-14 Ahart 5167 Butte On dry red soil on the east side of a building, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. Comment
  CHSC76404  Datura wrightii Lowell Ahart; Vernon H. Oswald 1999-10-3 8294 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
  SEINET10840961  Daucus pusillus Mary Susan Taylor 1980-6-14 Taylor 2882 Butte On W side of Oroville-Quincy Hwy, ca. 1 mi (2 mi by car) N of Bidwell Bar Bridge over the S fork of Feather River, ca. 7 mi S of Lake Madrone. 457 Comment
  CHSC46061  Delphinium R. A. Schlising; R. Banchero, R. Preston 1981-6-11 4068 Butte S of Butte Meadows along Humboldt Road, 1.9 mi NE of jct with Hwy 32 (at 'Lomo'). Comment
  CHSC24644  Delphinium gracilentum S. Deaton 1976-4-23 34 Butte 1 3/4 mi n of Feather Falls parking lot and 20 ft down s slope of Falls trail. 853 Comment
  CHSC56765  Delphinium gracilentum Kirsten Tarp 1982-6-6 184 Butte Near Flea Valley. Comment
  UC726361  Delphinium gracilentum A. A. Heller 1919-5-18 13176 Butte creek between Appleton and Coutolenc; Mosquito Creek 609 Comment
  CAS-BOT-BC8573  Delphinium hansenii A. A. Heller 1938-5-28 15110 Butte 2.5 miles E of Oroville on Highway 24 Comment
  SD234160  Delphinium nudicaule Virginia Pinkus Ryder 1965-4-3 368 Butte Table Mountain. Growing at edge of Coal Canyon and down into basaltic canyon. 366 Comment
  CAS-BOT-BC8070  Delphinium nuttallianum E. B. Copeland 1930-6-25 416 Butte Jonesville 1550 Comment
  UC426909  Delphinium nuttallianum E. B. Copeland 1930-6-25 416 Butte Jonesville 1550 Comment
  RSA718036  Delphinium patens R. D. Fischer 2005-4-30 717 Butte Forest Ranch, Sierra Nevada foothills adjacent Hwy 32, below Forest Ranch in the Big Chico Creek Ecological Reserve on Lookout Trail 518 Comment
  CAS-BOT-BC121614  Delphinium patens subsp. patens A. A. Heller 1913-4-5 10706 Butte North side of Feather River above Oroville Comment
  CHSC56779  Delphinium patens subsp. patens J. D. Jokerst 1981-4-10 1285 Butte Table Mountain; west edge of mountain, 100 m north of Cherokee Road. 335 Comment
  CAS-BOT-BC121625  Delphinium patens subsp. patens Lowell Ahart 1990-3-28 6429 Butte South side of Pacific Heights Road, about 3 1/2 miles southwest of Oroville 39 Comment
  CAS-BOT-BC17017  Delphinium variegatum Lowell Ahart 1980-5-4 2185 Butte Thermalito. 65 Comment
  CHSC52501  Delphinium variegatum M. J. Luesebrink 1978-2-4 11 Butte Ca. 250 ft. n of Wildwood Ave., 0.8 mi ne of junction with Manzanita Ave., .8 mi sw of rifle range, Bidwell Park, Chico. 56 Comment
  CAS-BOT-BC17022  Delphinium variegatum subsp. variegatum A. A. Heller; H. E. Brown 1902-5-10 s.n. Butte Berry Canyon (Near Clear Creek) Comment
  CHSC1466  Delphinium variegatum subsp. variegatum Garnett; Durbrow 1928-3-20 Butte Richardson Springs road. 121 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
  JEPS115534  Delphinium variegatum subsp. variegatum Lowell Ahart 2009-5-15 15702 Butte about 20 yards east of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 234 Comment
  SEINET10448604  Dentaria pachystigma var. dissectifolia Lowell Ahart 1983-3-28 Ahart 3906 Butte Ca 0.5 mi sw of Forbestown Reserv., along the rd in slide area, ca. 4 mi ne of Forbestown. On serpentine, Yellow Pine Forest. 450 Comment
  CHSC44453  Deschampsia danthonioides Lowell Ahart 1988-5-30 6024 Butte Near the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC75428  Deschampsia danthonioides Jennifer Slater 1997-4-27 40 Butte At the Wurlitzer addition of the Vina Plains Preserve west of Highway 99, approx. 10 miles north of Chico. 67 Comment
  UCD62771  Deschampsia danthonioides P. B. Kennedy 1914-5-1 s.n. Butte Chico. Comment
  UCD62772  Deschampsia danthonioides A. A. Heller 1914-5-13 11399 Butte Near Nelson. Comment
  UCD62779  Deschampsia danthonioides var. gracilis A. A. Beetle 1941-6-27 2746 Butte Near Lomo at road forking to Chico Creek. Comment
  CHSC33956  Deschampsia elongata M. S. Taylor; L. Ahart 1981-8-15 4184 Butte Along West Branch Feather River, 3.4 mi sw of Snag Lake, ca. 11 mi ne of Stirling City. 1615 Comment
  CHSC2518  Dicentra formosa W. Fitzwater 1958-4-26 Butte Below Forest Ranch, ca. 15 mi. NE of Chico. Comment
  CHSC636  Dicentra formosa R. M. Staley 1952-7-13 Butte Ponderosa Way. 609 Comment
  CAS-BOT-BC209181  Dichanthelium acuminatum subsp. acuminatum M. S. Taylor 1978-7-21 1839 Butte Big Bald Rock, ca. 2 mi. e of Lake Madrone 997 Comment
  CHSC4223  Dichelostemma capitatum subsp. capitatum L. R. Alexander 1967-3-9 29 Butte Fairly abundant 4 mi. se of Chico ca. 200 yds. Off the left hand side of Paradise road. 182 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
  RSA333580  Dichelostemma capitatum subsp. capitatum Craig Martz, Richard F. Sannar 1982-3-16 31 Butte Along State Route 70, 1 mile N of intersection with Palermo Road, S of Oroville. 150 Comment
  CHSC38767  Dichelostemma congestum Vernon Oswald 1983-5-23 543 Butte Upper Bidwell Park, Chico, near Yahi Trail of Brown's Hole. 207 Comment
  RSA21181  Dichelostemma multiflorum Carl B. Wolf 1937-6-12 8781 Butte Sierra Nevada Foothills, 2.5 miles SE of Oroville on road to Wyandotte. 91 Comment
  SEINET3243527  Dichelostemma multiflorum Carl B. Wolf 1937-1 8781 Butte Sierra Nevada Foothills, 2 1/2 mi. SE of Oroville on road to Wyandotte. 91 Comment
  CAS-BOT-BC501096  Dichelostemma multiflorum John Thomas Howell 1962-6-15 37466 Butte Magalia, Sierra Nevada 731 Comment
  POM215700  Dichelostemma multiflorum David D. Keck 1933-5-31 2417 Butte 5 miles east of Oroville on road to Bangor. Comment
  RSA339162  Dichelostemma multiflorum Margaret J. Williams, Wayne Roderick 1984-5-25 84- 22 -4 Butte Magalia, near Skyline road to Paradise 168 Comment
  SEINET12053819  Dichelostemma multiflorum L. S. Rose 1931-1 s.n. Butte Oroville Comment
  SEINET10533889  Dichelostemma volubile Carter 1966-4-30 Carter 387 Butte Found 7 miles E of Oroville ca 1/8 mile W off Feathervale at 6120 Woodleaf Star Rt.; growing on shaded, brushy hillside 100 yds W of house. 1000 feet/ Cahparral. Associates: Sidalcea, Ceanothus cuneatus, Avena. Comment
  SEINET8476826  Dichelostemma volubile B. Nightengale 1961-4-29 66 Butte Near highway between Paradise and Chico, 6 miles SW of Paradise. 366 Comment
  CHSC33903  Digitalis purpurea M. S. Taylor 1981-5-15 3742 Butte Both sides of rd 22N92 between its jct with 23N00.1 and West Branch French Creek, ca 1.5 air mi s of Coyote Gap, ca. 4 air mi e of Pulga on Feather River Hwy 70. 883 Comment
  SBBG128789  Digitaria ischaemum L. Ahart 2012-10-20 18494 Butte soil and gravel bar on the S side of Big Chico Crk, ca. 50 yards W of Table 4, W of Cedar Grove, Lower Bidwell Park, Chico 68 Comment
  JEPS128620  Digitaria sanguinalis Lowell Ahart 2017-8-1 21653 Butte Park west of railroad, northeast of the intersection of Virginia Street and Sycamore Street, in Gridley. Comment
  CHSC62335  Diospyros B. Castro 1990-5-6 421 Butte Within the Chico Tree Improvement Center at SE edge of Chico, via Morrow Lane, close to banks of a branch of Comanche Creek (or 'Edgar Slough'). 70 Comment
  JEPS119747  Diospyros virginiana Lowell Ahart 2012-5-17 18077 Butte North of Big Chico Creek, south of the horse trail, southwest of the southwest corner of the old walnut orchard, about 3/5 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  CHSC103934  Diplacus angustatus Lowell Ahart 2010-5-16 16693 Butte Bottom of a small drainage, just east of the basalt cliffs, about 1/4 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 368 Comment
  CAS-BOT-BC150504  Diplacus grandiflorus A. A. Heller 1914-5-18 11407 Butte Between Chico and Forest Ranch, 14 miles from Chico; West slope of the Sierra near Forest Ranch 609 Comment
  CHSC94933  Diplacus grandiflorus K. Lang 2005-5-5 42 Butte Lime Saddle Boat Launch, near Oroville. 279 Comment
  CAS-BOT-BC153213  Diplacus kelloggii Helen M. Edwards 1917-6-1 s.n. Butte De Sabla Comment
  CHSC44789  Diplacus kelloggii R. Banchero 1980-6-19 256 Butte Along Concow Rd 4.95 mi N of its jct with Deadwood Rd, 5.8 mi N of the town of Concow. 646 Comment
  CAS-BOT-BC153222  Diplacus kelloggii N. Wynne; M. Peckham; J. Bamesberger 1994-3-30 10 Butte Table Mountain, [Cherrokee] Cherokee Rd, approx. two miles east of Hwy 70 Comment
  CAS-BOT-BC154033  Diplacus torreyi A. A. Heller 1913-6-7 10799 Butte Near Stirling 1074 Comment
  CDA43367  Dittrichia graveolens D. G. Kelch 2012-9-19 12 .356 Butte Oroville, immediately west of sewage treatment plant. Comment
  CHSC106282  Dittrichia graveolens L. P. Janeway 2010-11-17 10220 Butte Sacramento Valley. Oroville; in gravel parking area at east sie of Feather River Ranger District office (875 Mitchell Ave.). 59 Comment
  CHSC83438  Dodecatheon alpinum L. P. Janeway 2002-5-26 7562 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
  CHSC52456  Dodecatheon clevelandii subsp. patulum M. P. Howe 1984-4-1 4 Butte Doe Mill Summit. 579 Comment
  CHSC13891  Dodecatheon hendersonii J. F. Goodwin 1972-3-11 182 Butte 0.5 mi se on Oregon Gulch Road from its intersection with Cherokee Road, Table Mountain, Oroville; sw side of road. Comment
  CHSC19937  Dodecatheon hendersonii M. S. Taylor 1975-3-10 414 Butte Along paths on bluffs overlooking Butte Creek, ca. 1/4 mi sw of Covered Bridge, ca. 8 mi e of Chico. Comment
  CHSC44343  Dodecatheon hendersonii Lowell Ahart 1988-3-28 5951 Butte Near a small shrub and a small stream, about 1/10 mile south of Lumpkin Ridge road, about 1 1/2 miles east of Camp 18, about 8 miles east of Feather Falls. 1280 Comment
  POM76672  Dodecatheon hendersonii C. C. Bruce 1897-03 s.n. Butte Butte Creek. Comment
  JEPS120766  Dopatrium junceum Lowell Ahart 2013-9-20 19058 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
  CDA6254  Dopatrium junceum L. L. Davis 1944-8-23 Butte Biggs Rice Field Station, Biggs. 0 Comment
  CHSC28146  Downingia bicornuta Robert A. Schlising; Ellen Sanders 1979-4-28 3379 Butte Near Richvale; vernal pools in grassland w of Hwy 99 and Thermalito Afterbay, 1/4 mi s of jct Hwy 99 and Hwy 162 to Oroville. Comment
  RSA21491  Downingia bicornuta C. B. Wolf 1937-5-14 8673 Butte Sacramento Valley; 5 miles W of Chico on Hamilton City Road. 46 Comment
  UC336558  Downingia bicornuta var. bicornuta Edw. L. Greene Jun 1890 Butte near Chico Comment
  SD116534  Downingia cuspidata Barbara Ertter, Jeffrey Strachan and Lowell Ahart 1980-5-7 3311 Butte North Table Mountain, ca. 5.0 miles north of Oroville. 395 Comment
  UC625530  Downingia cuspidata Frank W. Gould 1938-4-23 318 Butte a few mi n Gridley Comment
  CHSC62833  Downingia insignis Ella Icard 1893-1-1 Butte Comment
  CHSC184  Downingia ornatissima var. ornatissima E. Canfield 1904-5-7 Butte Hooker Oak field. 76 Comment
  CHSC38286  Downingia ornatissima var. ornatissima Vernon Oswald 1983-5-2 416 Butte Upper Bidwell Park, Chico 50 ft s of Upper Park Rd. and 300 ft e of its junction with Wildwood Ave. 83 Comment
  RSA755646  Draba verna L. Ahart, John Dittes 2009-3-20 15503 Butte Open area along 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
  CHSC42358  Draperia systyla Lowell Ahart 1987-5-22 5668 Butte On dry broken lava, about 1/4 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
  CHSC11942  Drosera rotundifolia E. B. Copeland 1930-7-25 417 Butte Jonesville. ... Field redacted by CHSC, contact the data manager for more information 1500 Comment
  CHSC46489  Drosera rotundifolia Lowell Ahart 1984-7-19 4756 Butte About 1/2 mile east of Bald Mountain, about 5 air ... Field redacted by CHSC, contact the data manager for more information 1615 Comment
  CHSC51867  Drosera rotundifolia L. P. Janeway 1987-6-27 2364 Butte Large mdw on E slope of Bald Mtn along the Concow ... Field redacted by CHSC, contact the data manager for more information 1706 Comment
  POM34663  Drymocallis glandulosa var. glandulosa C. C. Bruce 1898-05 2436 Butte Butte Creek. Comment
  CHSC110346  Drymocallis glandulosa var. reflexa L. P. Janeway 2013-5-5 11097 Butte Northern High Sierra Nevada. Plumas National Forest; eastern slope of Bloomer Hill, 1.0 air km east of the top. 701 Comment
  CAS-BOT-BC527352  Drymocallis glandulosa var. reflexa Helen M. Edwards 1917-6-1 s.n. Butte De Sabla Comment
  CHSC102981  Dryopteris arguta Lowell Ahart 2009-8-20 16288 Butte Below the rim, along a small drainage, west of the Guardian Rock Trail, about 30 yards northwest of Pine Trail, about 3/8 mile (air) southwest of the intersection of Ten Mile House Road and Highway 32, Upper Bidwell Park, about 10 miles northeast of Chico. 398 Comment
  CHSC12109  Dryopteris arguta J. M. Pitts 1972-4-16 133 Butte Locally abundant 100 yards se of Humbug Rd. 7.9 mi ne past Honeyrun Bridge. 426 Comment
  CHSC50014  Dryopteris arguta Lowell Ahart 1990-3-19 6417 Butte On the south side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  JEPS107674  Dryopteris arguta Lowell Ahart 2005-1-20 11473 Butte On the west side of McCabe Creek, above the high water line of Lake Oroville, about 1/4 mile south of the siphon, about 3 miles (air) northeast of Hurleton, about 7 miles (air) east of Oroville Dam 304 Comment
  RSA754843  Dryopteris arguta L. Ahart 2009-8-20 16288 Butte Near rim edge, west edge of the open area west of the Guardian Rock Trail, about 30-100 yards north of Pine Trail, about 3/8 air mile southwest of the intersection of Ten Mile House Road and Highway 32., Upper Bidwell park, about 10 miles northeast of Chico. 399 Comment
  SEINET10966176  Dryopteris arguta Mary Susan Taylor 1980-3-19 Taylor 2389 Butte T19N R6E sw sec 8. Macabes Creek Canyon ca. 100 ft E of Lumpkin Rd, ca. 2.5 mi N of its jct with Forbestown Road, ca. 18 mi NE of Oroville. Cool, wet Ripar ian Woodland. 396 Comment
  CHSC3524  Dudleya cymosa John Francis 1966-4-23 129 Butte Table Mt. Comment
  CAS-BOT-BC428073  Dudleya cymosa subsp. cymosa Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  CHSC116141  Dysphania botrys Lowell Ahart 2015-10-26 20594 Butte Strand of Lake Oroville, on the west side of the West Branch of the Feather River, about 1 mile (air) southeast of Kunckle Reservoir, about 5 miles (air) southeast of Paradise. 207 Comment
  CHSC52010  Dysphania pumilio L. P. Janeway; C. A. Janeway 1986-11-23 1944 Butte Foreman Creek access to Lake Oroville. On a +/- muddy and gravelly point in Lake Oroville ca 20-40 ft low below high watr mark. 274 Comment
  CHSC108135  Echinochloa crus-galli Lowell Ahart 2011-10-29 17727 Butte On the bare sides of a ditch, on the south side of Biggs Princeton Road, about 500 yards west of Riceton Highway, about 1 mile northwest of Biggs. 27 Comment
  CHSC31697  Echinochloa crus-galli L. Ahart 1974-11-9 673 Butte In rice field. Peter Ahart Ranch, Honcut. 45 Comment
  JEPS110295  Echinochloa crus-galli Lowell Ahart 2006-9-11 13304 Butte South edge of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville 431 Comment
  JEPS120870  Echinochloa crus-galli Lowell Ahart 2013-6-18 18803 Butte About 20 yards E of Parking Lot 16, Gray Lodge Wildlife Management Area, about 7 air miles SW of Gridley. Comment
  SEINET3928604  Echinochloa muricata Lowell Ahart 1984-9-17 4792 Butte Peter Ahart Ranch, ca. 2.3 miles north and 0.3 miles east of Honcut, ca. 12 miles S of Oroville.; 0 50 Comment
  RSA707816  Echinochloa oryzicola Beecher Crampton 1963-9-9 6887 Butte 5 miles N.W. of Biggs, Biggs Rice Experiment Station Comment
  CDA2000  Echinochloa oryzoides G. D. Barbe, T. C. Fuller 1977-9-2 2336 Butte Rice Experiment Station, Biggs. 0 Comment
  CHSC37661  Echinodorus berteroi T. B. Devine 1981-9-3 765 Butte At edge of Horseshoe Lake, Upper Bidwell Park, Chico. 106 Comment
  JEPS95994  Echinodorus berteroi Lowell Ahart 1999-9-21 8275 Butte northwest of Parrott Landing; about 1 mile southeast of Ord Ferry; about 2 miles southeast of Ordbend; about 12 miles (air) southwest of Chico 32 Comment
  CHSC46021  Elatine chilensis Lowell Ahart 1974-5-1 448 Butte Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC117440  Eleocharis acicularis Lowell Ahart 2016-5-24 20868 Butte On the bottom of a large drainage, about 100 yards norfth of the ditch, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. 44 Comment
  JEPS123876  Eleocharis acicularis Lowell Ahart 2015-4-24 20062 Butte About 1 1/4 miles north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. Comment
  SEINET13709937  Eleocharis acicularis Lowell William Ahart, Lowell William Ahart 2000-1 8333 Butte 12 Mi. SE of Oroville (T17N, R4E, sec 3, SW 1/4) 120 Ft. 37 Comment
  SEINET13710215  Eleocharis acicularis Lowell William Ahart, Lowell William Ahart 2000-1 8444 Butte 3.5 Mi. SW of Forbestown (T19N, R6E, sec 18, SE 1/4) 2400 Ft. 732 Comment
  CHSC38908  Eleocharis acicularis var. occidentalis Vernon Oswald 1983-7-21 890 Butte Upper Bidwell Park, Chico, along the n-w edge of Horseshoe Lake. 100 Comment
  UCD49690  Eleocharis acicularis var. occidentalis L. Ahart 2000-10-2 8699 Butte Normal sized plants, on wet bare sand, north of a large pond on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CHSC31926  Eleocharis bella J. D. Jokerst; B. Banchero, R. A. Schlising 1980-6-16 842 Butte N of and adjacent to Humboldt Rd, 0.1 mi W of its junction with Skyway, community of Butte Meadows. 1341 Comment
  CHSC78737  Eleocharis bella Lowell Ahart 2000-9-15 8689 Butte North of a large pond on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CHSC36358  Eleocharis bolanderi J. D. Jokerst; R. A. Schlising 1982-6-4 1592 Butte Along the edges of Concow Cr. at its headwaters just S. of Flea Valley. 1097 Comment
  CAS-BOT-BC113583  Eleocharis decumbens Lowell Ahart 1980-7-4 2459 Butte Along Forbestown Road Comment
  CAS-BOT-BC113375  Eleocharis engelmannii Lowell Ahart 1986-11-9 5448 Butte Ca. 1/10 mi S of the clay burrow for Oroville Dam, 1/4 mi E of Larkin Road, 36 Comment
  CHSC31667  Eleocharis macrostachya L. Ahart 1975-6-19 792 Butte Along the edge of North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC45131  Eleocharis macrostachya Vernon Oswald 1987-7-20 3139 Butte Butte Creek Reserve on the s side of Butte Creek, n of the Skyway, between the dam for Crouch Ditch and the double set of transmission lines. 82 Comment
  CHSC94556  Eleocharis macrostachya Lowell Ahart 2006-9-13 13315 Butte South edge of the North Fork of the Feather River, about 100 yards west of Mill Creek, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville. 431 Comment
  SD427  Eleocharis macrostachya E. B. Copeland 1931-7-15 Butte Jonesville; in and beside the Lily Pond, a permanent pool. 533 Comment
  SEINET10466725  Eleocharis macrostachya John Thomas Howell 1959-9-20 Howell 34660 Butte Lower foothills, estern outskirts of Oroville. Plants of the Sierra Neveda. Comment
  RSA695401  Eleocharis obtusa var. engelmannii L. Ahart 2003-6-23 10302 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
  CDA2608  Eleocharis pachycarpa L. Ahart 2000-5-24 8389 Butte On the east side of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. Comment
  SEINET11750485  Eleocharis pachycarpa Unknown 1985-1 5161 Butte Peter Ahart Ranch, ca 1 mi N & 3 mi E of Honcut, ca 12 mi S of Oroville,W side of North Honcut Creek 46 Comment
  CHSC30504  Eleocharis quinqueflora J. D. Jokerst; R. A. Schlising, M. S. Taylor 1980-4-7 550 Butte 1.0 mi E of Palermo-Honcut Hwy, 50 m S of Melody Lane. 48 Comment
  JEPS98472  Eleocharis quinqueflora Lowell Ahart 2000-5-30 8411 Butte 2 mi S of Paradise (about 1/4 mi NE of Kunkle Reservoir, E of the Pentz Magalia Road) 548 Comment
  JEPS98613  Eleocharis quinqueflora Lowell Ahart 2000-6-27 8530 Butte Seeps, on the north side of Bean Creek Road, about 1/4 mile southeast of Little Bald Rock, about 4 miles (air) northeast of Madrone Lake, about 13 miles (air) northeast of Oroville. 1066 Comment
  SEINET3441887  Eleocharis quinqueflora Unknown 2000-7-7 8555 Butte Dallas, Dallas, about 8 miles east, Sunnydale, about 4.5 miles south of highway 635, Tain east Boulevard 1030 Comment
  CHSC116025  Eleocharis radicans Lowell Ahart 2015-10-20 20567 Butte On the west side of the Feather River, about half way of and east of One Mile Pond, about 6 miles (air) east of Biggs. 26 Comment
  CHSC78568  Eleocharis radicans Lowell Ahart 2000-8-30 8677 Butte Bottom of a small depression, southeast of a large pond, about 100 yards south of the Feather River, west of the break in the levee, about 1/2 mile (air) west of Pacific Heights Road, Oroville Wildlife Area, about 3 1/3 miles (air) southwest of Oroville. 42 Comment
  JEPS98265  Eleocharis radicans Lowell Ahart 2000-10-2 8698 Butte 2 mi SE of Ordbend (N of a large pond on E side of Sacramento River, NW of Parrott Landing, 1 mi SE of Ord Ferry, 12 air miles SW of Chico) 32 Comment
  CHSC37397  Elodea canadensis R. A. Schlising 1980-8-31 3979 Butte Richvale Vernal Pools, 1/4 mi s of jct of Hwy 162 to Oroville and Hwy 49, along latter and across from Thermalito Afterbay. Comment
  CHSC49574  Elymus elymoides subsp. californicus Vernon H. Oswald 1983-6-22 731 Butte Near Calif. Hwy. 32 11.7 mi n-e of Forest Ranch. 1143 Comment
  UCD61842  Elymus glaucus R. N. Raynor; H. A. Hannesson 1941-5-9 Butte Feather River, 4 mi. S. of Oroville. Comment
  UCSB34810  Elymus multisetus Reisentz, Paul 1979-5-13 Butte State Highway 70; 9 miles south of Butte-Plumas County line Comment
  CHSC42952  Elymus stebbinsii subsp. septentrionalis Lowell Ahart 1987-7-8 5805 Butte Along Big Bar Mountain Road, about 1 mile south-west of Coyote Gap, about 5 miles east of Pulga. 1280 Comment
  CAS-BOT-BC204285  Elymus trachycaulus subsp. trachycaulus V. Oswald; L. Ahart 1988-7-29 3634 Butte Ca 3 mi (air) se of Jonesvill eon Humbug Rd, ca. 0.3 w of Butte Creek House at the logging road southward to Summit Lake and Snow Mtn. 1755 Comment
  CHSC32668  Enemion occidentale M. S. Taylor 1981-3-24 3448 Butte S side of Hwy 70, ca. 100 ft w of Poe Dam, ca. 1/2 e of Pulga. Comment
  CHSC45420  Enemion occidentale Lowell Ahart 1973-2-28 156 Butte Along the south side of Swedes Flat Road, about 1 mile east of the Oroville Bangor Highway, north-east of Bangor. 304 Comment
  CAS-BOT-BC410229  Enemion occidentale Lowell Ahart 1980-3-26 2053 Butte Along Swedes Flat Road, near Bangor. 320 Comment
  CAS-BOT-BC165894  Epilobium John Thomas Howell 1961-9-22 36767 Butte North Fork of Feather River, 10 miles from Oroville Comment
  POM219494  Epilobium brachycarpum H. F. Copeland 1928-8-29 404 Butte Neighborhood of Jonesville, valley of Butte Creek. Comment
  SD239827  Epilobium brachycarpum George K. Helmkamp, E. A. Helmkamp 2009-9-5 15595 Butte Sacramento Valley: Palermo Road 0.3 mile east of its junction with CA-70, 6.1 mile ENE (76a^z) of Biggs (Palermo 7.5'Q) 57 Comment
  UCD105287  Epilobium brachycarpum H. F. Copeland 1928-8-29 s.n. Butte Jonesville, Butte Creek. 1524 Comment
  CHSC36295  Epilobium canum subsp. latifolium M. S. Taylor 1982-8-16 5017 Butte S side of jct of Big Kimshew Creek and Bald Mt-Ramsey Bar Rd (52513), ca. 4 air mi ne of Stirling City. 1432 Comment
  SEINET6637245 Image available Epilobium ciliatum subsp. ciliatum H. F. Copeland 1923-1 920 Butte Nelson Comment
  UC1562487  Epilobium ciliatum subsp. ciliatum Lowell Ahart 1990-8-15 6586 Butte along creek below high water line of Lake Oroville (about 1/2 mi sw of the Enterprise Bridge across lake); McCabe Creek 228 Comment
  CHSC95136  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2006-11-12 13542 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
  POM214001  Epilobium ciliatum subsp. glandulosum H. F. Copeland 1935-7-28 s.n. Butte Jonesville. 1500 Comment
  CHSC1087  Epilobium densiflorum V. Holt 1942-6-17 Butte Pentz. Comment
  CHSC46576  Epilobium glaberrimum subsp. glaberrimum Vernon H. Oswald 1989-7-18 3862 Butte Humboldt Rd east of Butte Meadows, ca. 0.5 mi sw of the Butte Creek Bridge at Cherry Hill. Meadow bordering Butte Creek. 1389 Comment
  CHSC38572  Epilobium minutum Vernon Oswald 1983-5-14 484 Butte Upper Bidwell Park, Chico, on the north rim ca. 1800 ft w of the turn-around at the end of the jeep trail. 402 Comment
  CHSC117426  Epilobium torreyi Lowell Ahart 2016-5-30 29898 Butte West of Little Pump, Peter Ahart Ranch, about 2 1/2 miles north and 1/4 mile east of Honcut, about 12 miles (air) south of Oroville. 30 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
  SEINET10872488  Epipactis gigantea Mary Susan Taylor 1975-6-25 Taylor 802 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
  CAS-BOT-BC57994  Equisetum arvense E. B. Copeland 1930-6-28 402 Butte Jonesville. 457 Comment
  SEINET10530172  Equisetum hyemale subsp. affine Mary Susan Taylor 1975-10-4 Taylor 965 Butte E side of Kunkle Reservoir, ca. 1/4 mi E of Pentz-Magalia Hwy, ca. 1 mi S of Paradise; open to sun. 610 Comment
  CHSC9  Equisetum laevigatum A. Small 1960-5-14 Butte Kimshew. Comment
  CHSC103155  Equisetum telmateia subsp. braunii Lowell Ahart 2009-6-19 15938 Butte South of trail where people cross Big Chico Creek, on the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 203 Comment
  CAS-BOT-BC204453  Eragrostis cilianensis Lowell Ahart 1984-10-5 4813 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 3/4 miles east of Honcut, about 12 miles south of Oroville 50 Comment
  CHSC49239  Eragrostis curvula var. curvula Vernon Oswald 1984-5-9 1174 Butte Between Chico and Forest Ranch on Hwy 32, 6.7 mi n-e of Calif. Hwy 99. On the edge of the road. 411 Comment
  CHSC51036  Eragrostis hypnoides Lowell Ahart 1990-7-4 6543 Butte Along McCabe Creek, below the high water line of Lake Oroville, about 1/2 mile south-west of the Enterprise Bridge across Lake Oroville. 243 Comment
  SEINET10555215  Eragrostis hypnoides Lowell Ahart 1995-8-19 Ahart 7614 Butte Normal size plants on dry sandy soil, east side of North Honcut Creek, Peter Ranch about 1 mile north and 2 3/4 miles east of Honcut, about 12 miles southeast of Oroville. Foothill Woodland. 37 Comment
  UCD63884  Eragrostis mexicana subsp. virescens John Thomas Howell 1959-9-20 34675 Butte Sierra Nevada, lower foothills, eastern outskirts of Oroville. 60 Comment
  CAS-BOT-BC284085  Eragrostis pectinacea var. pectinacea John Thomas Howell 1959-9-20 34687 Butte Eastern outskirts of Oroville, Sierra Nevada 60 Comment
  CDA34555  Eragrostis pectinacea var. pectinacea L. Ahart 2008-11-4 15405 Butte On the east edge of the paved road. about 100 yards south of the entrance to the large parking area on the north end of Oroville Dam, about 4 miles (air) northeast of Oroville. Comment
  CHSC38820  Eragrostis pectinacea var. pectinacea Vernon Oswald 1983-6-18 710 Butte Upper Bidwell Park, Chico, in Lindo Channel at the diversion weir. 79 Comment
  CAS-BOT-BC278512  Eragrostis pilosa var. pilosa John Thomas Howell 1959-9-20 34675 Butte Eastern outskirts of Oroville 60 Comment
  SEINET10453735  Eremocarpus setiger Mary Susan Taylor 1975-10-3 Taylor 947 Butte Ca. 1/4 mile N of the Washout, between River Road and the Sacramento River, ca. 10 mi W of Chico. Riparian Woodland and sloughs, wet and humid. 37 Comment
  CHSC91477  Eremogone cliftonii L. P. Janeway 2005-6-26 8436 Butte Northern High Sierra Nevada. Open granite ridgetop 0.3 km west of Cedar Creek and 2.6 km north-northwest of the mouth of Cedar Creek at North Fork Feather River. 1295 Comment
Read comments
Jul 8 2014
  CHSC92525  Eremogone cliftonii Samantha Mackey Hillaire; Matt Brown, Lawrence Janeway, Jamie Lewis 2005-5-4 1216 Butte North of Pulga/Mayaro area. 1018 Comment
  CHSC69447  Erigeron canadensis Lowell Ahart 1997-9-6 7886 Butte Near the McNab Cypress grove, near the steel tower power line, along the sides of a logging road, about 1/4 mile west of Rim Road, about 2 miles (air) northeast of Concow Reservoir. 731 Comment
  UCD131755  Erigeron canadensis L. Ahart 1982-9-9 3770 Butte 100 meters north of check-in station, Graylodge Wildlife Refuge, 12 miles SW of Gridley. 35 Comment
  SEINET10971237  Erigeron inornatus Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4245 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-BC295420  Erigeron inornatus var. calidipetris H. F. Copeland 1920-8-12 123 Butte Jonesville 1219 Comment
  CHSC34037  Erigeron inornatus var. inornatus L. Ahart 1981-7-7 2913 Butte A little e of the bridge across Rocky Honcut Creek, Swedes Flat Rd, ca. 7 mi s of Bangor. 350 Comment
  CHSC50792  Erigeron petrophilus var. sierrensis Vernon Oswald; Lowell Ahart 1990-7-31 4414 Butte Jeep Trail between Concow Rd and Rim Rd, ca. 2 mi northeast of Concow. 902 Comment
  CHSC113812  Erigeron philadelphicus Lowell Ahart 2013-4-20 18554 Butte On the west side of Wilson Creek, about 1/4 mile southwest of the barn, about 1/4 mile west of the Honcut Cemetery, about 3 miles (air) northeast of Honcut. 42 Comment
  CDA42882  Erigeron philadelphicus var. philadelphicus L. Ahart 2012-5-25 18114 Butte Northwest of the intersection of W. Frances Willard Avenue and Arcadian Avenue, one block south of Chico High School, Chico. Comment
  JEPS119900  Erigeron philadelphicus var. philadelphicus Lowell Ahart 2012-5-25 18114 Butte Northwest of the intersection of W. Frances Willard Avenue and Arcadian Avenue, one block south of Chico High School, Chico. Comment
  JEPS123874  Eriodictyon californicum Lowell Ahart 2015-4-30 20123 Butte About 1/4 mile south of Forbestown Reservoir Road, about 2 1/2 miles (air) northeast of Forbestown. Comment
  SEINET5495493  Eriodictyon californicum R. McKee, H. Westover 1918-6-5 s.n. Butte Paradise Comment
  UCD119303  Eriodictyon lobbii Evans Bros. 1933-7-25 s.n. Butte Durham. Comment
  CAS-BOT-BC259401  Eriogonum luteolum A. A. Heller 1913-9-16 11142 Butte Hills near Big Chico Creek, east of Chico Comment
  CHSC38611  Eriogonum luteolum var. luteolum Vernon Oswald 1983-8-2 947 Butte Upper Bidwell Park, Chico, on the n side of Lindo Channel ca. 100 ft e of Manzanita Ave. 79 Comment
  CAS-BOT-BC124297  Eriogonum marifolium Edwin Bingham Copeland 1930-7-12 158 (UCBerkeley's 410) Butte Above Jonesville 2000 Comment
  UC426902 Image available Eriogonum marifolium var. apertum E. B. Copeland 1930-7-12 410 Butte above Jonesville; ; above Jonesville, Butte Co. 2000 Comment
  CHSC21237  Eriogonum nudum var. oblongifolium M. S. Taylor 1975-9-19 916 Butte In serpentine area, ca. 1/2 mi n of Magalia, ca. 50 ft e of the Skyway. 609 Comment
  CAS-BOT-BC269852  Eriogonum nudum var. pubiflorum A. A. Heller 1916-9-5 12664 Butte Hills 8 miles north of Oroville Comment
  CHSC39136  Eriogonum nudum var. pubiflorum R. A. Schlising; K. Tarp 1982-7-24 4340 Butte E of Stirling City, at Creek in Breakneck Canyon. 1417 Comment
  CHSC63712  Eriogonum nudum var. pubiflorum Lowell Ahart 1994-10-23 7567 Butte Along the disturbed edge of the water ditch, about 2 3/4 miles north of De Sabla Reservoir, about 4 miles (air) west and 1/2 mile north of Stirling City. 853 Comment
  UC1562313  Eriogonum nudum var. pubiflorum Vernon Oswald and Lowell Ahart 1990-6-27 4337 Butte ca. 0.5 air mi ne Junction House (site) (Jordan Creek-Marble Creek Rd. (23N60) between Spoon Ravine and Marble Creek, e side of Oro-Quincy Hwy.) 1109 Comment
  CHSC45489  Eriogonum roseum Lowell Ahart 1977-10-19 1603 Butte Near North Honcut Creek, Peter Ahart Ranch, about 3/4 mile north and 2 1/2 miles east of Honcut, about 12 miles south of Oroville. 42 Comment
  JEPS113681  Eriogonum roseum Lowell Ahart 2007-7-24 14390 Butte About 200 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
  CHSC45370  Eriogonum spergulinum var. reddingianum Vernon Oswald; Lowell Ahart 1987-6-10 2980 Butte Forest Service road joining Humbug Rd. in about the center of Section 22, in the first drainage e of Humbug Rd. 1874 Comment
  UC1594558  Eriogonum spergulinum var. reddingianum Lowell Ahart 1992-7-29 6876 Butte about 3/4 mi nw Lotts Lake (about 1 mi ne of the Carr Mine) 1798 Comment
  CHSC37367  Eriogonum umbellatum var. nevadense R. A. Schlising 1982-8-1 4365 Butte E of Stirling City at white basalt Table Mountain; N end of Table Mt. 1859 Comment
  SEINET10479571  Eriogonum umbellatum var. polyanthum Lowell Ahart 1985-8-15 Ahart 5164 Butte In an area where serpentine is covered with shallow red rocky soil, 50 yards south of the road to the Forbestown, Res., about 2 1/2 miles north-east of Forbestown. Comment
  CAS-BOT-BC265215  Eriogonum umbellatum var. speciosum John Thomas Howell 1959-9-26 35090 Butte Pulga Bridge, N. Fk. Feather River, Sierra Nevada 417 Comment
  CAS-BOT-BC262214  Eriogonum ursinum Lowell Ahart 1981-8-1 3017 Butte Near the top of Humboldt Peak 2157 Comment
  RSA0048238  Eriogonum ursinum James R. Shevock 1972-5-19 1774 Butte Jarbo Pass, Feathr River Cyn., Hwy. 70. 1066 Comment
  CHSC51897  Eriogonum vimineum L. P. Janeway 1988-7-2 2965 Butte Near the road into French Creek 0.6 mi S of Coyote Gap. Shaley SE-facing ridge outcrop. 1219 Comment
  UCR190825  Eriophyllum lanatum Ken Osborne 2007-5-13 s.n. Butte Sierra Nevada Foothills, along Ponderosa Way at Mud Creek, c. 1.5 mi. SE of Cohasset 701 Comment
  CHSC21274  Eriophyllum lanatum var. grandiflorum M. S. Taylor 1975-5-30 394 Butte On the n side of Upper Bidwell Park Rd, ca. 3 mi e of Golf Course, Upper Bidwell Park, Chico. 121 Comment
  CHSC329  Eriophyllum lanatum var. grandiflorum M. Roberson 1956-5-21 Butte Near Paradise along Skyway. 548 Comment
  SBBG8177  Eriophyllum lanatum var. integrifolium H. and M. Dearing 1938-6-21 2045 Butte 15 mi N of Chico Comment
  SEINET10495113  Erodium cicutarium Mary Susan Taylor 1975-2-16 Taylor 375 Butte Ca. 1/4 mi W of Pentz-Magalia Hwy, ca. 5 mi S of Paradise, in vicinity of Lime Saddle Reservoir. Foothill Woodland. Comment
  CAS-BOT-BC40749  Erysimum capitatum Helen M. Edwards 1917-6-1 s.n. Butte De Sabla. Comment
  CHSC4257  Erysimum capitatum var. capitatum J. E. Bowlin 1967-3-24 36 Butte Along roadside, Hwy 70 at Cresta Powerhouse. Comment
  CHSC43538  Erythranthe geniculata Lowell Ahart 1978-5-2 1708 Butte North of the large parking area on the top of Table Mountain, about 7 miles north of Oroville. 396 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
  CAS-BOT-BC151463  Erythranthe latidens A. A. Heller 1914-5-1 11343 Butte Chico-Hamilton road 6 miles from Chico Comment
  CHSC45091  Erythranthe lewisii L. P. Janeway; R. A. Schlising 1988-7-22 3059 Butte Southeast part of upper Coon Hollow. 1889 Comment
  CHSC20116  Erythranthe nasuta M. S. Taylor 1975-4-26 535 Butte Se corner of Kunkle Reservoir, ca. 1/4 mi e of Pentz-Magalia Hwy, ca. 1 mi s of Paradise. 609 Comment
  CHSC38702  Erythranthe nasuta Vernon Oswald 1983-5-7 443 Butte Upper Bidwell Park, Chico, on the north rim ca. 1.7 mi e of the power lines. 353 Comment
  CHSC64223  Erythranthe primuloides S. C. Morey 1983-7-28 631 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humbolt Rd. at Butte Meadows. 1292 Comment
  SEINET8399967  Erythranthe primuloides E. B. Copeland 1929-7-13 459 Butte Jonesville. 1550 Comment
  CHSC13514  Erythranthe pulsiferae N. E. Long 1974-5-1 Butte Scarce alongside dirt road, ca. 300 yards off Cohasset Highway and ca. 12 mi n of Chico. 274 Comment
  CHSC4196  Erythronium multiscapideum J. Senter 1967-4-10 11 Butte Located 150 yds. S. E. of covered bridge at base of slope, on Honeyrun rd. 60 Comment
  CAS-BOT-BC504526  Erythronium multiscapideum A. A. Heller 1939-4-8 15368 Butte About 4 miles from Magalia on the Coutlenc road. Comment
  SEINET10528913  Erythronium multiscapideum Zierenberg 1983-4-15 ZIERENBERG 24 Butte Just s of Magalia Reservoir Dam. USGS East Paradise quadrangle. UTM grid coordinates 214080 zone 10. Serpentine soil. 2160 feet. 658 Comment
  CAS-BOT-BC402967  Eschscholzia californica A. A. Heller 1912-5-23 10747 Butte Table Mountain Olive Ranch north of Oroville Comment
  CAS-BOT-BC402970  Eschscholzia californica A. A. Heller; H. E. Brown 1902-5-6 5456 Butte Berry Canyon (Near Clear Creek) Comment
  JEPS102784  Euonymus occidentalis var. occidentalis Lowell Ahart 2001-6-18 8879 Butte On the east side of the dirt road and east of the bridge across the West Branch of the Feather River, about 2 miles (air) SE of Stirling City. 609 Comment
  CHSC115428  Euphorbia peplus Ariana Gehrig 2013-4-18 Butte City of Chico. Big Chico Creek at Rio Chico Way. 64 Comment
  CHSC9139  Euphorbia spathulata M. P. Coffeen 1970-4-14 16 Butte 100 yds. S. of Horseshoe Lake in Bidwell Park, Chico. 91 Comment
  RSA755268  Euphorbia spathulata L. Ahart 2009-5-15 15701 Butte About 20 yards E of the dirt road that is Ten Mile House Road, Upper Bidwell Park, about 3/4 air mile W of Highway 32, about 10 miles NE of Chico. 234 Comment
  CHSC43242  Euthamia occidentalis Lowell Ahart 1987-9-29 5906 Butte On a road cut near a wash, near the dirt road, about 1 mile east of the Golden Trout Crossing across the South Fork of the Feather River, about 2 miles west of the Sly Creek Reservoir. 1158 Comment
  JEPS106262  Festuca occidentalis Lowell Ahart 2004-7-23 11298 Butte On sides of small stream, ca. 20 yd NW of the dirt road to the West Branch Cpgd, ca. 50 yd SE of the intersection of Humbug Rd and Philbrook Reservoir Rd, ca. 1 3/4 mi (air) W of Philbrook Reservoir Dam, ca. 3 mi (air) SE of Butte Meadows 1586 Comment
  CAS-BOT-BC278629  Festuca subulata Lowell Ahart 1981-9-15 3159 Butte Half a mile north of the Lost Creek Reservoir 1100 Comment
  UC600748  Festuca subulata H. F. Copeland 1932-8-12 Butte Butte Creek Jonesville 1500 Comment
  JEPS95914  Fimbristylis autumnalis Lowell Ahart and Vernon H. Oswald 1999-8-13 8145 Butte northwest of Parrott Landing; about 1 mile southeast of Ord Ferry; about 2 miles southeast of Ordbend; about 12 miles (air) southwest of Chico 32 Comment
  CHSC42909  Foeniculum vulgare Lowell Ahart 1987-7-12 5820 Butte Along North Honcut Creek, about 2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 64 Comment
  UCD113236  Fragaria vesca L. E. Hazeltine 1916-7-16 s.n. Butte Appleton. Comment
  CHSC95182  Fragaria virginiana R. D. Fischer 2005-6-5 826 Butte Chico Meadows. Northern Sierra Nevada, n. of Forest Ranch, 5 miles w. of Hwy 32 off Humboldt Road to Butte Meadows and ca. 3 miles n. to Chico Meadow (Camp Lassen, BSC) on Scout Road. Plant growing along eastern edge of Chico Meadow. 1280 Comment
  CAS-BOT-BC437083  Fragaria virginiana subsp. platypetala E. B. Copeland 1929-7-16 373 Butte Jonesville 1550 Comment
  CAS-BOT-BC62903  Frangula californica subsp. tomentella Lewis S. Rose 1955-6-14 55097 Butte Magalia. 731 Comment
  CAS-BOT-BC62939  Frangula californica subsp. tomentella Ella Dales Cantelow 1940-10-6 4292 Butte Buck's Lake to Oroville Road. Comment
  CHSC50841  Frangula purshiana Vernon Oswald; Lowell Ahart 1990-7-19 4364 Butte Slope on the south side of Philbrook Creek, ca. 3 mi east of Philbrook Reservoir, ca. 0.3 mi west of the Plumas County line. 1981 Comment
  CHSC48838  Frangula rubra subsp. obtusissima Vernon Oswald 1985-6-3 1799 Butte Spur road on the e side of Hwy 32 0.1 mi s of Platte Mtn Lookout. 1066 Comment
  CHSC29098  Fraxinus dipetala M. S. Taylor; J. D. Jokerst 1980-4-18 2522 Butte On dry bluff, on e side side of Humbug Rd, ca. 5 mi s of Nimshew. 518 Comment
  SEINET10469653  Fritillaria eastwoodiae Mary Susan Taylor 1981-3-16 Taylor 3404 Butte T21N R4E southcenter sec 16; Cherokee q. E side of Truex Rd, ca. 0.5 mi s of its jct with Hwy 70, ca. 7 mi n of Oroville. Foothill Woodland; 1000 ft. 305 Comment
  SEINET10905374  Fritillaria eastwoodiae Mary Susan Taylor 1981-4-27 Taylor 3559 Butte T21N R5E se sec 24, Brush Creek quad. Ridge between 21N33 and 21N80, ca. 1 mi SW of Bald Rock Rd, ca. 0.5 mi N of Zink Rd, ca. 2 mi SW of Brush Creek. Yellow Pine Forest; 3300 ft. 1006 Comment
  CHSC2275  Fritillaria purdyi E. Washburn 1930-3-1 Butte Iron Canyon, Chico Creek. [L. Janeway 2011 note: locality most likely incorrect.] Comment
Read comments
Oct 5 2009
  POM109786  Fritillaria recurva C. C. Bruce 1897-02 2026 Butte Little Chico Comment
  UCR231507  Galium Anna M. Hurlbutt 2009-8-7 024 Butte Northern Sierra Nevada Mtns., vicinity of Inskip Inn, end of paved part of Skyway Rd., north of Paradise 1463 Comment
  CHSC4192  Galium aparine L. R. Alexander 1967-4-7 14 Butte Found in abundance ca. 75 yds. S of covered bridge on Humbug Rd. 91 Comment
  HSC38060  Galium aparine Thomas W. Nelson, Jane P. Nelson 1976-5-10 2467 Butte Beside SR 191 just N of its junction with SR 70 Comment
  CHSC113490  Galium bifolium Lowell Ahart 2014-7-10 19616 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1664 Comment
  POM196538  Galium bifolium H. F. Copeland 1929-6-12 1212 Butte Jonesville. 1524 Comment
  CHSC28016  Galium bolanderi M. S. Taylor 1978-7-21 1801 Butte Ca. 1 mi N of Lake Madrone, on E side of Oroville-Quincy Hwy. 609 Comment
  CHSC38656  Galium bolanderi Vernon Oswald 1983-6-9 658 Butte Upper Bidwell Park, Chico, beside Yahi Trail W of Brown's Hole. 195 Comment
  CHSC86431  Galium bolanderi Jenny Marr 1994-6-13 85 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
  SEINET10968838  Galium divaricatum Mary Susan Taylor 1980-5-24 Taylor 2737 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC104805  Galium murale Lowell Ahart 2010-6-1 16764 Butte On dry poor bare soil, on the south side of Guardians Trail, about 1/8 mile west of the power lines, Upper Bidwell Park, about 1 1/2 miles (air) east of Chico. 115 Comment
  CHSC111120  Galium parisiense Lowell Ahart 2012-5-20 18096 Butte Southeast part of Upper Bidwell Park, northeast of Chico. Comment
  CHSC111972  Galium parisiense Lowell Ahart 2012-6-2 18144 Butte South edge of Truex Road and Trevor Road, about 1/8 mile northwest of the West Branch Bridge across Lake Oroville. 306 Comment
  SEINET5550943  Galium parisiense H. S. Gentry, S. Koch 1962-1 19783 Butte 7 mi. NE of USDA Field Station, Chico, along road to Centerville. 152 Comment
  CHSC20046  Galium porrigens var. tenue M. S. Taylor 1975-4-25 495 Butte Ca. 1/2 mi E of Cohasset Hwy, ca. 10 mi N of Chico. Comment
  CHSC52130  Galium porrigens var. tenue Paul K. Kirk 1981-3-10 4 Butte N side of Cohasset Rd., 50 m NE of its jct. with Rock Creek Rd., 14.5 km N of Chico. 135 Comment
  CHSC35215  Galium tricornutum M. S. Taylor 1981-5-1 3584 Butte E side of Hwy 70, ca. 4 air mi NW of Oroville. 91 Comment
  UC1523190  Galium trifidum M. S. Taylor and Lowell Ahart 1981-8-15 4187 Butte ca. 14 mi ne Stirling City (e side of Humbug Rd, meadow on n side of lake); Jonesville SW Quad, Snag Lake, Montane Meadow 1737 Comment
  UC1523189  Galium triflorum M. S. Taylor and L. Ahart 1981-8-15 4194 Butte n side of Coon Hollow Rd 1.2 mi e jct with Humbug Rd (along creek, ca 12 mi ne of Stirling City); Jonesville SW quad 1676 Comment
  SBBG29803  Garrya fremontii E. B. Copeland 1932-7-27 Butte Jonesville 1650 Comment
  UC1122707  Garrya fremontii J. E. Sowder 1933-8-4 121 Butte slope above de Sable Power House; Chico Quad. 457 Comment
  CAS-BOT-BC282604  Gastridium phleoides A. A. Heller 1914-6-2 11474 Butte 8 miles north of Oroville Comment
  CHSC97243  Gastridium phleoides Lowell Ahart 2007-6-3 13978 Butte On the east side of Jordan Hill Road, about 1 1/2 miles northwest of Concow Creek, about 1 1/2 miles west of Concow Reservoir. 358 Comment
  JEPS127202  Gastridium phleoides Lowell Ahart 2016-6-4 20918 Butte About 100 yards north of McCabe Creek, about 3 miles (air) west of Forbestown. Comment
  UC1609290  Gaultheria ovatifolia Lowell Ahart 1993-8-8 7149 Butte 1/2 mi nw of Lewis Flat (3/4 mi nw of the Sly Creek Dam) 1097 Comment
  HSC96902  Gayophytum diffusum subsp. parviflorum L. Ahart 2003-8-17 10513 Butte About 100 yards NE of the buildings in Butte Creek House Meadow, about 3 mi. NE of Snag Lake, about 7 mi. E of Butte Meadows 1772 Comment
  UCD103534  Gayophytum heterozygum M. Banchero 1979-9-2 24 Butte 6 mi NE Forest Ranch on Hwy 32. Comment
  CHSC37449  Gayophytum humile R. A. Schlising; R. Banchero, D. Ikeda 1980-6-26 3787 Butte 3.2 miles se of Butte Meadows on Bull Hill Road (= Skyway). In small meadows along Bull Creek. 1511 Comment
  CDA36729  Genista monspessulana Barbara L. Wilson, Richard E. Brainerd, Lawrence Janeway, Barbara Castro 2010-8-7 16242 Butte Within half a mile of the old Magalia railroad depot, on Coutolenc off the Skyway. Comment
  POM193353  Gentianella amarella E. B. Copeland 1930-8-4 441 Butte Jonesville. 1500 Comment
  CHSC36225  Geranium carolinianum L. Ahart 1982-4-21 3290 Butte On n slope, under oaks and near North Honcut Creek, ca. 1 1/4 mi n and 3 mi e of Honcut, Peter Ahart Ranch. 50 Comment
  CDA5617  Geranium dissectum L. Ahart 2005-4-14 11704 Butte At the base of the railroad roadbed, east side of the railroad tracks, south of the railroad bridge, north of Spruce Street, Gridley. Comment
  JEPS119716  Geranium dissectum Lowell Ahart 2012-4-30 17926 Butte About 20 yards southeast of the intersection of South Rim Trail and 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
  JEPS120004  Geranium dissectum Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17856 Butte East of the Deer Pen, between Tables 10 & 11, Lower Bidwell Park, Chico. Comment
  CAS-BOT-BC263236  Geranium purpureum Lowell Ahart 2008-5-12 14762 Butte On the east side of Ponderosa Way, about 1 mile (air) southwest of the Ponderosa Dam, about 2 1/4 miles (air) northwest of Forbestown 670 Comment
  CHSC41375  Gilia capitata subsp. mediomontana R. A. Schlising; S. Morey 1982-8-31 4382 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
  CHSC24736  Gilia tricolor L. Casto 1976-4-28 18 Butte 50 yd s of Skyway, ca. 4 mi e of intersection of Hwy 99 and Skyway. 182 Comment
  SEINET10837194  Gilia tricolor Mary Susan Taylor 1980-3-1 Taylor 2350 Butte T21N R3E nw 1/4 sec 5. Near Elliot Spring House, S side of Neal Road, ca. 2 mi SW of Paradise. 302 Comment
  CHSC36069  Gilia tricolor subsp. tricolor Daniel K. Parker 1981-4-21 4 Butte Ca. 75 m w Cherokee Road, 9.4 km ssw Cherokee. Meadow. 380 Comment
  RSA638252  Gilia tricolor subsp. tricolor Michael A. Vincent, Ethan H. Freid 1998-4-6 s.n. Butte Table Mountain Comment
  RSA755355  Gilia tricolor subsp. tricolor L. P. Janeway 2008-4-2 9245 Butte Cascade Range Foothills. East edge of City of Chico, slope on north side of Humboldt Road 2.9 km northeast of Bruce Road. 178 Comment
  UCSB44143  Githopsis specularioides Reisentz, Paul 1979-5-13 Butte 0.7 miles west on Lunt Road from Hwy 70 Comment
  CHSC45500  Gleditsia triacanthos Lowell Ahart 1988-10-28 6190 Butte On the south side of Lower Honcut Road, about 1/2 mile west of the Southern Pacific Railroad, about 2 miles west of Honcut. 30 Comment
  CHSC63707  Glinus lotoides Lowell Ahart 1994-10-8 7554 Butte On the bottom of a large drying pond, on the south side of the shooting area, about 1 1/2 miles south of the Oroville Airport, south-west of Oroville. 45 Comment
  SEINET10843174  Glyceria elata A. Arthur Heller 1928-7-10 Heller 14694 Butte Wet meadows at Butte Meadows in the yellow pine belt. Comment
  SD5486  Gnaphalium palustre E. B. Copeland 1931-7-18 Butte Jonesville 1500 Comment
  SEINET10938059  Gnaphalium purpureum Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4152 Butte T20N R5E nw sec 17. Along edge of Ponderosa Way (Big Ridge Rd), ca. 1.5 mi se of East Fork Canyon Creek, ca. 14.5 mi ne of Oroville. Foothill Woodland. 575 Comment
  SEINET10475272  Gnaphalium thermale Mary Susan Taylor 1979-10-5 Taylor 2233 Butte T23N R4E sec 18. SE side of Paradise Lake (from picnic area to first creek coming into lake, along road), ca. 0.5 mi N of Coutolenc Rd, ca. 5 mi N of Magalia. 732 Comment
  JEPS118067  Goodyera oblongifolia Lowell Ahart 2011-8-23 17654 Butte On the west edge of the large meadow, Pinkard Creek flows through the meadow, 100 yards north of the corral, about 1 mile north of Lost Creek Reservoir Dam, about 4 miles (air) northeast of Clipper Mills 1133 Comment
  CHSC78168  Gratiola ebracteata Lowell Ahart 2000-6-6 8450 Butte On the sides of an old gold mining pit, just southeast of where the dirt road crosses Oregon Gulch creek, about 1/4 mile northeast of the cemetery, about 1 1/2 mile south of Crystal Hill, about 5 miles (air) east of Oroville Dam. 304 Comment
  CAS-BOT-BC305287  Grindelia hirsutula John Thomas Howell 1962-6-15 37481 Butte Magalia 731 Comment
  CHSC76119  Grindelia hirsutula var. davyi G. F. Hrusa; T. D. Wilfred 1997-6-27 13915 Butte Sierra Nevada. Feather Falls/Cascade Rd. Roadside. 1200 Comment
  RSA770729  Grindelia hirsutula var. davyi George K. Helmkamp, E. A. Helmkamp 2009-9-5 15587 Butte Lower Honcut Road, 0.9 rd. mi. west of Honcut, 7.8 mi. SE (111 deg ) of Gridley 34 Comment
  SEINET7728169  Gymnogramma triangularis Unknown Butte Chico Comment
  CHSC51859  Hackelia californica L. P. Janeway 1988-6-25 2860 Butte Near Coon Cr and near Bull Hill Rd 1.0 mi from the Skyway. Near the creek. 1554 Comment
  JEPS113886  Hamamelis vernalis L. P. Janeway 2007-8-12 9155 Butte Northern High Sierra Nevada; Along old Berry Creek Road 1.6 road km N of Oroville-Quincy Hwy; 1.8 air km S of the mouth of Berry creek at North Fork Feather River (Lake Oroville); mostly above the road but also occasionally below. 421 Comment
  CHSC78347  Hastingsia alba Lowell Ahart 2000-7-11 8571 Butte On the north side of Lumpkin Ridge Road, upper west branch of Knownothing Creek, about 1 mile southwest of the intersection of Lumpkin Ridge Road, road to Fall River, and the County Road, about 4 miles (air) northeast of Feather Falls. 1219 Comment
  SEINET11842149  Hedypnois cretica R. A. Schlising 1980-1 3595 Butte N of Lake Oroville, along Nelson Bar Rd, 1 mi W of jct with Lunt Rd & 1.8 mi total W of jct Comment
  POM180853  Helenium bigelovii H. F. Copeland 1924-8-12 868 Butte Jonesville. Comment
  CHSC66431  Helenium puberulum Vernon H. Oswald; Lowell Ahart 1996-6-10 7737 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. On the bank of the Sacramento River at the N end of the Riparian Sanctuary. 28 Comment
  JEPS120538  Helenium puberulum B. Castro, Margie Graham 2006-9-7 1609 Butte Sacramento Valley. Ca 1.75 mi W of Hwy 99, 1.3 mi ENE of Richvale and ca 0.4 mi N of Richvale Hwy in Cherokee Canal. On W side of canal ~ 20 ft in from toe of W levee. Comment
  CHSC43611  Helianthella californica var. nevadensis Vernon H. Oswald 1983-8-17 989 Butte Trail between Humboldt Summit and Humboldt Peak, ne of Jonesville. At the base of slope. 2023 Comment
  CAS-BOT-BC305346  Helianthus annuus Lowell Ahart 1980-8-16 2583 Butte Near Honcut 60 Comment
  CHSC38359  Helianthus bolanderi Vernon Oswald 1983-6-29 796 Butte Upper Bidwell Park, Chico, ca. 300 ft s of Upper Park Rd. and 1200 ft e of Parking Area N (Salmon Hole). 170 Comment
  CHSC97756  Heliotropium europaeum Lowell Ahart 2007-11-3 14575 Butte Below the high water line of Lake Oroville, about 1/2 mile east of the Power House below Kunckle Reservoir, about 3/4 mile north of the Lime Saddle Campground, about 5 1/4 miles (air) southeast of Paradise. 257 Comment
  JEPS128617  Heliotropium europaeum Lowell Ahart 2017-8-8 21656 Butte Park, west of railroad, northeast of the intersection of Virginia Street and Sycamore Street, in Gridley. Comment
  CHSC26654  Helminthotheca echioides M. S. Taylor 1977-11-10 1525 Butte Ca. 1 mi e of jct of Nelson West Rd and Chico-Butte Hwy, on n side of Nelson West Rd in creek, ca. 23 mi s of Chico. 30 Comment
  CHSC45698  Helminthotheca echioides Vernon Oswald 1983-6-28 783 Butte Graylodge Waterfowl Management Area near Parking Lot 16. Along the edge of ponds in the refuge. Comment
  CAS-BOT-BC305847  Helminthotheca echioides Lowell Ahart 1986-10-29 5413 Butte Along the edge of Wickman Road, about 1 1/4 mile north of Highway 162, about 2 1/2 miles north-west of Biggs 28 Comment
  CHSC95066  Hemizonella minima L. P. Janeway 2006-5-28 8645 Butte Northern High Sierra Nevada. 0.6 km east of Concow Road, 1.1 km northeast of Rag Dump, 3.8 mi north of Flea Mountain. Northeast edge of +- exposed granite ridge surrounded by mixed conifer forest. 1248 Comment
  CAS-BOT-BC309786  Hemizonia congesta subsp. luzulifolia John Thomas Howell 1955-9-6 30909 Butte Bank of Butte Creek east of Butte City on road to Oroville Comment
  SEINET10475211  Hemizonia fitchii Mary Susan Taylor 1975-10-4 Taylor 950 Butte E side of Kunkle Reservoir, ca. 1/4 mi E of Pentz-Magalia Hwy, ca. 1 mi S of Paradise; open to sun. 610 Comment
  CHSC111117  Herniaria hirsuta var. hirsuta Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-17 18070 Butte On the west side of the poor road (horse trail), about 100 yards north of the paved park road, west side of the old walnut orchard, south of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, lower Bidwell Park, Chico. 76 Comment
  JEPS107435 Image available Hesperevax acaulis var. ambusticola Lowell Ahart, Paul Maslin, John Dittes 2005-3-17 11676 Butte Big Chico Creek Ecological Reserve. Ridge top, in the center of a very poor dirt road, about 1 mile southwest of the Indian Cave, about 1 3/4 miles west of Big Chico Creek, about 4 miles (air) northeast of Chico 484 Comment
  SD40685  Hesperocyparis macnabiana Carl B. Wolf, E. R. Johnson 1934-10-5 Butte Sierra Nevada Foothills, at Magalia 700 Comment
  SD64391  Hesperocyparis macnabiana Darley F. Howe 1966-9-1 Butte Magalia 580 Comment
  CHSC34816  Heterocodon rariflorum M. S. Taylor 1980-4-27 2548 Butte Ca 1 mi s of Nimshew. ca. 1/4 mi e of Nimshew Rd. 609 Comment
  CHSC71170  Heterocodon rariflorum Lowell Ahart 1998-6-9 7998 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
  SEINET10460747  Heterocodon rariflorum Mary Susan Taylor 1980-7-20 Taylor 3191 Butte Big Bald Rock, ca. 3 mi E of Lake Mad rone, NE of Oroville. With L. Ahart, R. Schlising & J. Jokerst. 998 Comment
  SEINET10972527  Heterocodon rariflorum Edwin B. Copel 1929-7-16 Copeland 398 Butte JONESVILLE 1150 M Comment
  CHSC84637  Heteromeles arbutifolia Matt Quinn 2001-3-6 14 Butte Along Green Gate Road (10-mile House Road) on north facing slope on Big Chico Creek Canyon. Approximately 1/4 mile downslope from Highway 32. 365 Comment
  CHSC8127  Heterotheca grandiflora K. Henegar 1969-4-17 88 Butte At corner of Pentz and Pentz-Paradise Road. Comment
  RSA0062976  Heuchera micrantha var. erubescens L. Ahart 2009-5-23 15738 Butte East side 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
  RSA0062974  Heuchera micrantha var. erubescens C. C. Bruce 1897-05 2041 Butte Iron Canyon. Comment
  SEINET10970395  Heuchera micrantha var. erubescens Lowell Ahart 1983-5-28 Ahart 4019 Butte Along trail to Feather Falls, ca. 5 mi n of the town of Feather Falls. Yellow Pine Forest; 600 m. 600 Comment
  UC426990  Hieracium albiflorum E. B. Copeland 1930-7-16 495 Butte Jonesville 1600 Comment
  UC1562363  Hieracium argutum Lowell Ahart 1990-7-19 6572 Butte about 5 mi ne Forbestown (on steep road cut at s side of road); Forbestown Reservoir (Dam) 457 Comment
  CAS-BOT-BC55332  Hirschfeldia incana Lowell Ahart 1984-6-10 4689 Butte Along the edge of a new subdivision road about 1 mile southeast of Hurleton, 1/12 mile east of the Oak Grove Cemetery. 500 Comment
  CHSC40421  Hoita macrostachya Lowell Ahart 1985-7-9 5107 Butte Along the banks of a small stream, along Ponderosa Way, about 1 mile south of the Ponderosa Dam across the South Fork of the Feather River, about 3 miles north-west of Forbestown. 548 Comment
  JEPS87132  Holozonia filipes Lowell Ahart 1992-7-23 6833 Butte about 1.25 mi nw Oroville Dam (bottom and sides of Gulch, n of the Thermalito diversion Pool); Lake Oroville Recreation Area, Oregon Gulch 91 Comment
  JEPS93844  Hordeum brachyantherum subsp. brachyantherum Lowell Ahart 1998-6-9 7993 Butte about 7 air mi n of Oroville (about 3/8 mi nw of the Ione oak tree, nw of the cow chute along Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 388 Comment
  CHSC26471  Hordeum murinum subsp. leporinum P. Moyer 1972-3-11 126 Butte 100 ft. from Citrus Ave. Bridge on slope of n bank of Chico Ck. 60 Comment
  SEINET10483360  Horkelia elata Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4101 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
  RSA451654  Horkelia fusca subsp. parviflora H. F. Copeland 1928-8-20 458 Butte Jonesville. 1524 Comment
  CAS-BOT-BC532316  Horkelia fusca var. parviflora V. Oswald; L. Ahart 1988-7-26 3614 Butte Snow Mt. region located ca. 6 air mi se of Jonesville. 1996 Comment
  POM220121  Horkelia tridentata H. F. Copeland 1928-8-20 453 Butte Jonesville. 1524 Comment
  RSA4664  Horkelia tridentata E. B. Copeland 1929-7-23 370 Butte Jonesville. 1550 Comment
  SEINET11907302  Horkelia tridentata L. S. Rose 1939-1 39231 Butte 2 mi NE of Clipper Mills 1173 Comment
  CHSC45282  Hosackia crassifolia var. crassifolia Vernon Oswald 1987-6-23 3014 Butte High Lakes Rd. 2.1 mi (odometer) n of Philbrook Rd. 1828 Comment
  CHSC35707  Hosackia stipularis var. ottleyi J. D. Jokerst 1982-5-16 1570 Butte Ponderosa Way ca. 1/2 mi N of its junction with Lower Forbestown Rd. 731 Comment
  HSC73113  Hosackia stipularis var. stipularis M. S. Taylor 1981-5-7 3647 Butte S side of Field Ridge Rd. (20N24), 4.7 mi. S of its jct. with Lumpkin Rd., 2 air mi. SE of Feather Falls. 1037 Comment
  CHSC42583  Hydrocotyle umbellata Vernon Oswald 1985-6-26 1865 Butte Oroville Wildlife Area ca. 0.6 mi s of the Hwy 162 entrance. 36 Comment
  JEPS87415  Hydrophyllum occidentale Lowell Ahart 1993-7-6 7056 Butte about 1 air mi nw Lost Creek Reservoir Dam (Mooreville Ridge, Jackass Flat); Mooreville Ridge, Jackass Flat 1158 Comment
  CHSC12408  Hypericum anagalloides Lowell Ahart 1973-6-16 251 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC45901  Hypericum anagalloides Lowell Ahart 1980-7-20 2478 Butte Growing on moist granite soil, near the edges of small seeps, near Bean Creek Road, near the south side of Little Bald Rock, about 15 miles north-east of Oroville. 1005 Comment
  SEINET10839415  Hypericum anagalloides Mary Susan Taylor Taylor 321 Butte 61 Comment
  CAS-BOT-BC410225  Hypericum concinnum A. A. Heller 1928-5-27 I 4560 Butte In an adandoned field near the sawmill along the Neal road at Paradise Comment
  CDA13831  Hypericum perforatum G. F. Hrusa, T. D. Wilfred 1996-9-5 13559 Butte Butte Basin; 1/4 mi. from Butte Creek at Western Canal District Dam. Comment
  CHSC52346  Hypericum perforatum Pauleen Broyles 1987-5-21 1045 Butte Vina Plains Preserve. Eroded sandstone banks along Pine Creek. Comment
  JEPS117557  Hypericum perforatum Lowell Ahart 2010-6-25 16841 Butte Open pasture field, on the north side of the improved parking area, about 100 yards north of the cattle chute and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 409 Comment
  JEPS119621  Hypericum perforatum Lowell Ahart 2012-6-21 18215 Butte About 120 yards west of the Freeway, Lower Bidwell Park, Chico. Comment
  JEPS115302  Hypochaeris glabra Lowell Ahart 2009-5-8 15654 Butte On the south side of the gravel road, about 10 yards east of Cedar Grove Parking Area in Lower Bidwell Park, Chico 67 Comment
  SEINET10473839  Hypochaeris glabra Mary Susan Taylor 1981-4-28 Taylor 3570 B Butte T23N R5E sw sec 32 to T22N R5E ne sec 5 Pulga SW quad. Along Four Trees Rd, ca. 0.5 to 1 mi E of Hwy 70, ca. 2-3 mi NE of Pulga. Yellow Pine Forest; 2200-2400 ft. 670 Comment
  UC600658  Ipomopsis aggregata H. F. Copeland 1928-8-14 Butte Jonesville Comment
  SEINET10469750  Iris macrosiphon Mary Susan Taylor 1976-4-4 Taylor 1060 Butte Yellow Pine Forest, ca. 2-5 mi W of junction of Ponderosa Way and Hwy 32, ca. 2-10 ft N and S of Ponderosa Way, ca. 23 mi NE of Chico; with Sanicula bipinnata, Calochortus monophyllus. 488 Comment
  SEINET12050314  Iris macrosiphon Unknown 1985-1 4848 Butte about 1/2 mi NE of the West Branch Bridge across Lake Oroville, 1/4 mi E of Hwy 70, N of Oroville Comment
  CHSC29767  Isoetes howellii M. S. Taylor 1980-5-24 2738 Butte Peter Ahart Ranch, Honcut. 50 Comment
  SEINET10932892  Isoetes howellii Mary Susan Taylor 1980-5-24 Taylor 2738 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC116710  Isoetes nuttallii Lowell Ahart 2016-5-15 20831 Butte On the very west edge of North Honcut creek, Peter Ahart Ranch, about 1 1/4 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 45 Comment
  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
  JEPS127195  Isoetes nuttallii Lowell Ahart 2016-5-15 20831 Butte Peter Ahart Ranch, about 1 1/4 miles north and 2 3/4 miles east of Honcut, about 12 miles southeast of Oroville. Comment
  UCSB44160  Isoetes nuttallii Reisentz, Paul 1979-5-12 Butte Along road, 1.3 miles W on Lunt Rd. from Hwy 70. Comment
  JEPS98358  Isolepis cernua Lowell Ahart 2000-5-24 8390 Butte 1 mi N and 2 3/4 mi E of Honcut (Peter Ahart Ranch, E side of North Honcut Creek) 39 Comment
  CHSC45588  Isolepis setacea M. S. Taylor 1981-5-6 3622 Butte W side of rd leading to Jackson Ranch, ca. 5 air mi N of Feather Falls. 1127 Comment
  UC2026887  Jasminum mesnyi Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17867 Butte Between the edge of the paved road and the back of a home, east of the Deer Pen, between Table 12 & 13, Lower Bidwell Park, Chico. Comment
  CHSC69474  Jensia rammii James D. Jokerst 1982-5-28 1584 Butte Concow Basin W of Concow Creek (and Concow Rd.) ca. 0.25 mi N of Concow Lake. 609 Comment
  SEINET4691794  Juncaceae Peter F. Zika 2011-1 25543 Butte near parking for Big Bald Rocks Trailhead, 0.2 air miles E of Big Bald Rocks 1050 Comment
  CDA39167  Juncus articulatus G. D. Barbe, T. C. Fuller 1982-6-14 3677 Butte Black Bart Road 0.5 mile west of Forbestown Road. Comment
  CHSC38924  Juncus balticus subsp. ater Vernon Oswald 1983-5-18 507 Butte Upper Bidwell Park, Chico, 75 ft s of Upper Park Rd. and 200 ft e of Parking Area I (0.6 mi e of the power lines). In a drainage ditch. 103 Comment
  CHSC61515  Juncus bufonius var. bufonius Lowell Ahart 1993-5-15 6939 Butte Rice field, on the north side of Biggs Princeton Road, about 2 miles west of Biggs. Comment
  JEPS98295  Juncus bufonius var. bufonius Lowell Ahart 2000-6-27 8511 Butte Big Bald Rock, 3 air mi E of Madrone Lake, 12 air mi NE of Oroville 993 Comment
  CHSC31842  Juncus bufonius var. congestus L. Ahart 1980-6-15 2378 Butte On a sand bar on the edge of a large wash, ca. 1.5 mi n and 1 mi e of Honcut. Peter Ahart Ranch. 50 Comment
  CHSC26805  Juncus capitatus M. S. Taylor 1978-5-7 1601 Butte Richvale vernal pools, ca. 20 mi s of Chico on w side of Hwy 99. 30 Comment
  CHSC47543  Juncus capitatus Lowell Ahart 1983-5-12 3979 Butte Small vernal pools, near the power line, about 1/2 mile north-east of Highway 99 and Pentz Road. 60 Comment
  CHSC37727  Juncus cyperoides L. Ahart 1981-8-31 3058 Butte Along Black Bart Rd, ca. 1 mi w of the jct of Black Bart Rd and Oroville-Forbestown Rd, w of Forbestown. 750 Comment
  CDA2697  Juncus diffusissimus L. Ahart 2000-7-18 8596 Butte About 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. Comment
  JEPS113870  Juncus diffusissimus Lowell Ahart 2007-7-11 14287 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
  UCD141451  Juncus diffusissimus Lowell Ahart 1990-5-21 6476 Butte about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4.5 miles southwest of Oroville. 30 Comment
  CHSC73491  Juncus dubius B. Castro; L. Gehrung 1995-7-26 597 Butte Pinkard Meadow. Meadow along Pinkard Creek, ca 0.7 air mi W of Sly Creek Reservoir and 0.5 mi E of Mooreville Ridge, via a spur off USFS Rd 22N24.5. In center of moist meadow E of road. 1143 Comment
  CHSC28546  Juncus effusus subsp. pacificus M. S. Taylor 1978-7-18 1721 Butte On n side of Butte Creek, ca. 1/8 mi w of Road Island jct, at jct of Butte Creek and Old Humboldt Rd, ca. 1 mi w of Cherry Hill Campground, sw of Jonesville. 1524 Comment
  RSA726664  Juncus effusus subsp. pacificus L. Ahart 2007-7-2 14248 Butte 30 yards south of Oroville Dam Boulevard, about 1/4 mile southwest of the old overlook, about 4 miles (air) northeast of Oroville. 166 Comment
  CHSC69058  Juncus ensifolius Lowell Ahart 1997-8-1 7763 Butte On the bottom of Little Kimshew Creek, Snow Meadow, about 1/4 mile east of Table Mountain, about 8 miles (air) northeast of Stirling City. 1524 Comment
  UCD135933  Juncus exiguus Barbara L. Wilson; Lowell Ahart, Lawrence Janeway, Peter F. Zika 2010-8-5 16765 Butte along Mooreville Ridge Road (Forest Service Road 20N09) near junction with Pinkard Creek Road above Lost Creek Reservoir. 1149 Comment
  CHSC78212  Juncus kelloggii Lowell Ahart 2000-6-6 8455 A Butte In tire ruts on the bottom of an old gold mining pit, about 200 yards northwest of where the dirt road crosses Oregon Gulch creek, about 1/4 mile north of the cemetery, about 1 1/2 mile south of Crystal Hill, about 5 miles (air) east of Oroville Dam. 304 Comment
  CHSC113248  Juncus leiospermus var. leiospermus Lowell Ahart 2014-4-20 19391 Butte About one mile northwest of the parking area on the west side of Cherokee Road, about 7 miles (air) north of Oroville. 356 Comment
  CHSC28970  Juncus leiospermus var. leiospermus J. D. Jokerst 1979-4-2 481 Butte Around edges of vernal pool, restricted to the edge of high water mark. Top of North Table Mt. ca 200 m SW of the jct of the east edge of Mt and Cherokee Rd. Comment
  CHSC93495  Juncus leiospermus var. leiospermus Lowell Ahart 2006-5-8 12602 Butte Center of a small swale, about 100 yards southwest of the reservoir dam, about 2 3/4 miles west of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 280 Comment
  SBBG55177  Juncus leiospermus var. leiospermus B. Ertter, J. L. Strachan 1980-5-7 3309 Butte North Table Mtn, ca. 5 air mi N of Oroville 396 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
  CHSC71201  Juncus orthophyllus Lowell Ahart 1998-6-30 8008 Butte Center of a seep, west of the lone oak tree, west of the cow chute on the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CHSC61352  Juncus oxymeris Lowell Ahart 1993-7-29 7133 Butte In a large bog, on the north side of the dirt road to Big Kimshew Creek, about 1 1/2 miles southeast of Bald Mountain, northeast of Stirling City. 1493 Comment
  CHSC111086  Juncus tenuis Peter F. Zika 2011-7-7 25541 A Butte Near parking for Big Bald Rock Trailhead, 0.2 air miles E of Big Bald Rock, northern Sierra Nevada Highlands (n SNH). 1050 Comment
  CHSC69729  Juncus tenuis Lowell Ahart 1997-10-20 7927 Butte On sand bars, on the west side of the sharp bend in the South Fork of the Feather River, about 1/4 mile north of the bridge across the river, about 3/4 mile north of Golden Trout Crossing, 3 miles (air) northwest of Sly Creek Reservoir Dam. 914 Comment
  CHSC80894  Juncus tenuis Lowell Ahart 2001-7-6 8885 Butte West of a large pond, large overflow area on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ord Bend, about 12 miles (air) southwest of Chico. 32 Comment
  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
  CHSC78337  Juncus trilocularis Lowell Ahart 2000-6-27 8512 Butte Big Bald Rock, about 3 miles (air) east of Madrone Lake, about 12 miles (air) northeast of Oroville. 993 Comment
  JEPS113764  Juncus usitatus Lowell Ahart 2007-7-27 14398 Butte On the south strand of Thermalito Afterbay, about 200 yards north of Highway 162, about 5 miles west of the intersection of Highway 162 and Highway 70, about 5 1/2 miles (air) west of Oroville 36 Comment
  CAS-BOT-BC236761  Keckiella breviflora Lowell Ahart 1983-6-26 4131 Butte Along Ponderosa Way about 1/2 mile west of the East Fork of Canyon Creek, about 14 miles north-east of Oroville 500 Comment
  CHSC39016  Keckiella breviflora var. glabrisepala J. D. Jokerst 1983-6-21 1817 Butte Common along the cliff edge of Table Mountain. North edge of Coal Cr Canyon. West side of North Table Mt. 304 Comment
  CHSC43759  Keckiella corymbosa Vernon H. Oswald 1986-7-21 2213 Butte Little Butte Creek canyon overlook on Skyway 2.6 mi sw of Neal Rd. 335 Comment
  CHSC102712  Kickxia elatine Lowell Ahart 2009-7-3 15991 Butte 10 yards north of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove parking area, Lower Bidwell park, Chico. 67 Comment
  JEPS95924  Kickxia elatine Lowell Ahart 1999-8-13 8132 Butte northwest of Parrott Landing; about 1 mile southeast of Ord Ferry; about 2 miles southeast of Ordbend; about 12 miles (air) southwest of Chico 32 Comment
  CHSC30528  Koeleria phleoides N. E. H. Prouty 1980-4-28 156 Butte Near junction of Pentz Rd. with Pentz-Magalia Hwy. 207 Comment
  CHSC23405  Kumlienia hystricula M. S. Taylor 1976-3-6 1009 Butte Along Macabes Creek, ca. 100 yds e of Lumpkin Rd, ca. 1 mi e of Forbestown Rd, ca. 12 mi e of Oroville. 1097 Comment
  CHSC25446  Kyhosia bolanderi Marc Hayes; Warner 1977-9-11 77 Butte Ca. 150 m n of Humboldt Road between Butte Meadows and Jonesville, exactly 8.4 mi from the junction with Hwy 32. 1219 Comment
  JEPS107967  Kyllinga brevifolia Lowell Ahart 2005-8-14 12332 Butte Edge of ponds, Oroville Wildlife Area, about 1/2 mile west of Pacific Heights Road, about 3 1/2 miles (air) northwest of Palermo 28 Comment
  CHSC28571  Lactuca serriola M. S. Taylor; J. D. Jokerst 1979-11-11 2283 Butte Edge of ricefield, on w side of Goodspeed Watt Rd, ca. 6 mi s of Chico. 33 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
  CHSC66664  Lactuca serriola Vernon H. Oswald; Lowell Ahart 1996-7-22 8081 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. On the W side of the levee at the SW corner of Tract 6, Sanctuary 1. 30 Comment
  SEINET10971245  Lactuca serriola Mary Susan Taylor 1979-11-11 Taylor 2283 Butte T20 N R1E. Ca. 6 mi S of Chico, on W side of Goodspeed-Watt Road. With Jim Jokerst. 34 Comment
  CHSC65326  Laennecia coulteri Lowell Ahart 1995-10-4 7678 Butte Rice field, Peter Ahart Ranch, about 2 miles north and 1/4 mile easata of Honcut, about 12 miles south of Oroville. 36 Comment
  SEINET5709525 Image available Laennecia coulteri Grady L. Webster, G. Ledyard Stebbins 1967-1 7532 Butte Rancho Llano Seco, near end of west arm of Eddy Lake.; Eddy Lake Comment
  JEPS19943  Lagophylla glandulosa R. F. Hoover 1936-5-21 1169 Butte 7 mi n Chico Comment
  RSA755344  Lagophylla glandulosa L. Ahart 2009-7-9 16002 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
  CAS-BOT-BC341294  Lagophylla glandulosa Lowell Ahart 1979-5-20 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  HSC38107  Lagophylla glandulosa Thomas W. Nelson, Jane P. Nelson 1976-5-9 2448 Butte Intersection of Palermo Rd. and Hwy. 70, 4 mi. S of Oroville Comment
  CHSC3624  Lamium amplexicaule John Francis 1966-2-27 29 Butte Field at intersection of Citrus and Legion, Chico. Comment
  CHSC277  Lasthenia californica J. Turner 1930-3-25 Butte Chico Creek Canyon. 152 Comment
  CHSC47657  Lasthenia californica Lowell Ahart 1978-4-13 1635 Butte In pasture fields, Peter Ahart Ranch, about 1 1/2 miles north and 2 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CAS-BOT-BC337908  Lasthenia californica H. F. Copeland 1929-5-4 s.n. Butte Canyon of Chico Creek Comment
  CHSC110444  Lasthenia glaberrima B. Castro 2007-3-29 1619 Butte Sacramento Valley. Ca 0.8 mi SE of Chico Airport, N of Sycamore Creek and E of Cohasset Rd in area of grassland and scattered shallow vernal pools. 57 Comment
  CHSC30374  Lasthenia gracilis J. D. Jokerst 1979-3-9 1142 Butte Top of North Table Mt., 20 M N of Cherokee Rd where it intersects the E edge of the section. Comment
Read comments
Jan 19 2011
  UCD73060  Lasthenia platycarpha 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
  CHSC29994  Lathyrus angulatus L. Ahart 1980-4-28 2111 Butte Peter Ahart Ranch, Honcut. 50 Comment
  JEPS96018  Lathyrus angulatus Vernon H. Oswald and Lowell Ahart 1996-5-27 7652 Butte U.S. Fish and Wildlife Service parcel betw Seven Mile Lane and Sacramento River (Sac. R. Nat'l Wildlife Refuge, Llano Seco Unit, between hiking trail and s end of Tract 2...); Sacramento River National Wildlife Refuge, Llano Seco Unit 33 Comment
  SD129664  Lathyrus angulatus Barbara Ertter, Lowell Ahart 1986-4-13 5887 Butte Ca. 2 airmiles NNE of Honcut between Oroville & Marysville, Peter Ahart Ranch (mostly used as sheep pasture) 29 Comment
  CHSC48510  Lathyrus brownii Vernon Oswald 1985-5-16 1762 Butte Chico Meadows 200 ft n of the spring. 1316 Comment
  CAS-BOT-BC213343  Lathyrus jepsonii subsp. californicus Helen M. Edwards 1917-6-1 s.n. Butte De Sabla Comment
  RSA21488  Lathyrus jepsonii subsp. californicus Carl B. Wolf 1937-5-14 8670 Butte Sacramento Valley, 1 mi . no. of Durham. 46 Comment
  CHSC30955  Lathyrus jepsonii var. californicus L. Ahart 1980-6-20 2415 Butte Near the edge of the south fork Feather River, ca. 1/2 mi n of the Golden Trout Crossing, ca. 5 mi w of the Sly Creek Dam. 800 Comment
  POM29224  Lathyrus nevadensis subsp. nevadensis C. C. Bruce 1897-05 2082 Butte Forest- Ranch. Comment
  SEINET5327336  Lathyrus sativus R. McKee 1916-5-9 40281 Butte Chico Introduction Garden Comment
  CHSC44203  Lathyrus sphaericus Vernon Oswald 1988-5-27 3343 Butte 5782 Kibler Rd, Paradise. 585 Comment
  CHSC6038  Lathyrus sylvestris M. MacArthur 1968-6-18 221 Butte Ca. 30 ft. SE big Chico Creek, just NE of Bidwell Boul, Chico State College campus. 60 Comment
  CHSC112435  Lavatera cretica Lowell Ahart 2013-5-21 18702 Butte Waste area along fence, on the west side of Highway 99E, 30 yards north of W. Rio Bonito Road, about 1 mile northeast of Biggs. 31 Comment
  CAS-BOT-BC321753  Layia fremontii A. A. Heller 1914-3-28 11235 Butte Hills 8 miles N of Oroville Comment
  UC1609053  Ledum glandulosum Lowell Ahart 1993-7-29 7132 Butte about 1 1/2 mi se of Bald Mountain (on n side of dirt road to Big Kimshew Creek, ne of Stirling City) 1493 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
  SEINET10466002  Lemna minuta Mary Susan Taylor 1982-4-28 Taylor 4371 Butte T17N R1E se/sw sec 14. Pennington quad. Aquatic in slough, ca. 1/2 mi s of HQ on Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 65 ft. 20 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
  CHSC51221  Lepechinia calycina Lowell Ahart 1979-5-29 1892 Butte Growing east of the Pentz Magalia Highway, about 1/8 mile north of Kunkle Reservoir, west of Kunkle Creek, about 2 1/2 miles south-east of Paradise. 487 Comment
  SD174006  Lepechinia calycina W. I. Follett 1936-5-9 43 Butte Forest Ranch (5.6 miles southwest of). 548 Comment
  JEPS87616  Lepidium latifolium Lowell Ahart 1994-9-26 7548 Butte about 1.5 mi n and 1 mi e Honcut (about 12 mi s of Oroville, Peter Ahart Ranch); Peter Ahart Ranch 36 Comment
  CHSC35019  Lepidium nitidum R. E. Preston 1982-3-22 196 Butte Ca. 50 ft from sides of Hwy 149, ca. 1/2 mi e of its jct with Hwy 99, ca. 10.5 mi nw of Oroville. 60 Comment
  CAS-BOT-BC89882  Lepidium nitidum Lowell Ahart 1980-3-11 2039 Butte Peter Ahart Ranch. Honcut. 50 Comment
  CHSC92547  Lepidium nitidum var. nitidum L. P. Janeway 2005-3-10 8348 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  CHSC103655  Lepidium strictum Lowell Ahart 2010-4-5 16573 Butte Vacant lot, about 50 feet west of Virginia Street, about 20 feet south of Spruce Street, in Gridley. 28 Comment
  CHSC90625  Lepidium strictum Sally A. Carter 1988-4-12 1 Butte South side of Little Butte Creek, about 8.8 mi east-southeast of Chico, 200 ft west of Honey Run Road. 160 Comment
  CHSC25356  Lepidium virginicum var. pubescens M. P. Hayes 1977-4-22 10 Butte Along Hwy 70 ca 2.2 km sw of Butte-Plumas county line, ca 23 km nw of Paradise. 485 Comment
  JEPS98448  Leptochloa fascicularis Lowell Ahart 2000-5-18 8372 Butte 4 1/2 air miles SW of Oroville (on bottom of the Clay Pit, about 1/8 mi W of Oroville Airport and Larkin Road) 36 Comment
  CAS-BOT-BC273954  Leptochloa fusca subsp. fascicularis A. A. Heller 1919-8-13 13354 Butte Between Nelson and Richvale Comment
  CHSC31721  Leptochloa fusca subsp. fascicularis L. Ahart 1974-7-20 554 Butte On margins of rice field. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC38810  Leptochloa fusca subsp. fusca Vernon Oswald 1983-8-2 945 Butte Upper Bidwell Park, Chico, in Lindo Channel ca. 100 ft e of the flood-control gates. Along the edge of the stream. 79 Comment
  UC600666  Leptodactylon pungens E. B. Copeland July, 1930 Butte above Jonesville (on rocky ridge); above Jonesville 2000 Comment
  CAS-BOT-BC226523  Leptosiphon acicularis Lowell Ahart 1982-5-3 3404 Butte Peter Ahart Ranch, about 1 1/2 miles north and 2 1/4 miles east of Honcut 50 Comment
Read comments
Jul 19 2018
  CHSC101312  Leptosiphon bicolor Lowell Ahart 2009-4-22 15585 Butte Along the Guardians Trail, just south side of 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
  CHSC29964  Leptosiphon bolanderi R. A. Schlising 1980-6-1 3609 Butte S of Paradise at Kunkle Reservoir, off Pentz-Magalia Hwy. 440 Comment
  CHSC33250  Leptosiphon filipes R. A. Schlising; R. Banchero 1980-7-7 3852 Butte NE of village of Feather Falls, 0.5 mi N of Fall River Campground and bridge. Roadside. Comment
  POM65231  Leptosiphon filipes A. A. Heller, H. E. Brown 1902-5-9 5508 Butte Berry Canyon (Near Clear Creek) from [type?] region Comment
  CHSC3523  Leptosiphon parviflorus John Francis 1966-4-23 128 Butte In pasture, Table Mt. Comment
  CHSC23685  Lessingia nana K. Stern 1969-1-1 Butte Growing in Upper Bidwell Park, Chico. Comment
  UC1287398  Lessingia nana Willard Spence 1960-9-7 624 Butte 0.5 mi off Rt. 99E on Cana Pine Creek Rd. (approximately half way between Chico and Vina) Comment
  CAS-BOT-BC342060  Lessingia virgata John Thomas Howell 1959-9-19 34612 Butte 5 mi west of Oroville 45 Comment
  CDA8204  Lessingia virgata L. Ahart 2003-8-3 10464 Butte About 2 1/2 miles north and 2 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville. Comment
  CHSC47675  Leucothoe davisiae Lowell Ahart 1989-9-21 6396 Butte Along a small branch of French Creek, on the north side of the gravel road, east of a small pond, about 1 mile west of the Sly Creek Reservoir. 1158 Comment
  SEINET10572648  Lewisia cantelovii Mary Susan Taylor, Vernon H. Oswald 1985-5-30 Taylor 5521 Butte At Butte-Plumas County line on Hwy 70, on large granitic outcrop. Comment
  CAS-BOT-BC451600  Lilaea scilloides Lowell Ahart 1980-4-19 2091 Butte Peter Ahart Ranch, Honcut 50 Comment
  CAS-BOT-BC509478  Lilium kelleyanum H. F. Copeland 1920-8-29 152 Butte Jonesville Woods 1219 Comment
  CHSC46236  Lilium pardalinum subsp. pardalinum Pauleen Broyles 1987-7-5 1073 Butte Ca 7 km n of Inskip, ca 0.4 km s of Bull Hill Rd., along Coon Creek. 1500 Comment
  CAS-BOT-BC133041  Lilium washingtonianum subsp. washingtonianum M. S. Taylor; J. D. Jokerst; L. Ahart 1980-8-2 3211 Butte Humboldt Peak, s end of peak, and w side off the trail 2154 Comment
  CAS-BOT-BC110626  Limnanthes alba Helen M. Edwards 1917-6-1 s.n. Butte De Sabla. Comment
  RSA176424  Limnanthes alba A. A. Heller 1926-4-12 s.n. Butte 8 miles north of Chico. Comment
  RSA700398  Limnanthes alba T. W, Henrich 2004-4-15 s.n. Butte Chico. In a field to the northeast of Viceroy Drive and Camberwell Court, northeast Chico. Comment
  UCD116449  Limnanthes alba Jeff Dole 1986-4-27 s.n. Butte 2.1 miles east of Bean Creek Road, along Highway 44. Comment
  CHSC38538  Limnanthes alba subsp. alba Vernon Oswald 1983-4-18 337 Butte Upper Bidwell Park, Chico, on the north rim near the head of the west intermittent stream which flows into Sycamore Creek (4000 ft e of the power lines). 286 Comment
  CHSC83909  Limnanthes douglasii subsp. nivea Lowell Ahart 2003-4-10 10083 Butte Along a drainage, southwest of the 'sunken area,' on the top of South Table Mountain, about 2 1/2 miles (air) north of Oroville. 310 Comment
  POM282578  Limnanthes douglasii subsp. rosea J. W. Morrison 1928-05 s.n. Butte Oroville, Sierra Nevada Mt. Range, Feather River. 305 Comment
  RSA435676  Limnanthes douglasii subsp. rosea M. Vincent 1962-4-17 203 Butte Cherokee Road near Table Mountain. Comment
  UCD116439  Limnanthes floccosa Jeff Dole 1988-3-28 s.n. Butte east of Chico airport. Comment
  CHSC102870  Limnanthes floccosa subsp. californica Elena Gregg 2010-3-24 Butte Northern Sacramento Valley. Vernal pool swale complex on a ridge of basalt on the east side of the Potter Road bike path and north of Humbug Road. The vernal pool/swale complex flows into a drainage that continues west into the Little Chico Creek Overflow Channel. 135 Comment
  CHSC29028  Limnanthes floccosa subsp. californica J. D. Jokerst 1980-3-27 520 Butte Ca 1/2 mi N of Chico Muni Airport, E of Cohasset Hwy. 97 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
  CHSC80561  Limosella acaulis Lowell Ahart 2001-5-3 8736 Butte On the bottom of one of the large holding ponds, on the south side of Evans-Reimer Road, about 1 mile east of Pennington Road, Gray Lodge Waterfowl Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  CHSC82232  Limosella aquatica Lowell Ahart 2002-4-14 9483 Butte Area between the Railroad and the Midway Road, 50 yards south of Nelson Dlavo Road, in Nelson. 36 Comment
  UC726835  Linanthus bicolor A. A. Heller 1938-4-11 15022 a Butte e of Chico (near the Chico airport) Comment
  UC133974  Linanthus dichotomus E. B. Copeland 1903-4-11 3030 Butte Chico Comment
  CHSC44406  Linum bienne Lowell Ahart 1988-6-23 6076 Butte In deep ditch, south of the intersection of Black Bart Road and Forbestown Road, about 1 mile west of Robinson Mill Road. 670 Comment
  CHSC76428  Lipocarpha micrantha Lowell Ahart 1999-10-28 8301 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 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  SEINET11750564  Lipocarpha micrantha R. A. Schlising 1979-1 3501 Butte along Sacramento River W of Chico, just N of Chico Landing site in Bidwell River State Park Comment
  POM196098  Listera convallarioides E. B. Copeland 1929-7-15 355 Butte Jonesville. 1500 Comment
  CAS-BOT-BC36588  Lithocarpus densiflorus var. echinoides A. A. Heller 1913-6-7 10798 Butte Near Stirling 1074 Comment
  SEINET10871263  Lithophragma Mary Susan Taylor 1981-5-13 Taylor 3695 Butte 4500 ft. T23N R6E se sec 32, Pulga SE quad. In decomposed granite on E side of 23N15.5, ca. 1 mi S of its jct with Four Trees Rd, ca. 8 air mi E of Pulga and 0.5 mi W of Oroville-Quincy Hwy. 1372 Comment
  CAS-BOT-BC430884  Lithophragma bolanderi Frances Brown 1935-5-1 s.n. Butte Near Durham Comment
  CHSC24868  Lithophragma bolanderi T. L. Reynolds 1976-4-23 62 Butte Ca. 100 yds s of Honey Run Road and 2.9 mi ne of Covered Bridge, 9.8 mi e of Chico. 198 Comment
  JEPS117712  Lithophragma bolanderi Lowell Ahart 2010-4-30 16603 Butte Steep north slope, below rim and above cliffs, on the north side of a trail, west of disk golf area, on a ridge about 350 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 353 Comment
  CAS-BOT-BC432270  Lithophragma campanulatum A. A. Heller 1914-6-22 11955 Butte Little Summit near Butte Meadows 1463 Comment
  CHSC46271  Lithophragma campanulatum Vernon Oswald 1989-5-8 3761 Butte Feather Falls Trail, between the trailhead at the end of Bryant Ravine Rd and Frey Creek. 731 Comment
  CAS-BOT-BC432267  Lithophragma campanulatum A. A. Heller 1919-5-18 13178 Butte Mosquito Creek between Appleton and Coutelence Comment
  CAS-BOT-BC435492  Lithophragma glabrum Lowell Ahart 1987-5-12 5646 Butte S of Lumpkin Ridge Road, 1 1/2 miles E of Camp 18, about 8 miles NE of Feather Falls 1280 Comment
  CAS-BOT-BC317344  Lithospermum californicum Lowell Ahart 1982-5-8 3423 Butte 3 miles NE of Forbestown along the road to the Forbestown Reservoir. 800 Comment
  SEINET11268243  Lobularia maritima Lowell Ahart 2001-4-15 8722 Butte On the north side of the dirt road east of the large pump, on the south side of Evans-Reimer Road, about 1 mile east of Pennington Road, Gray Lodge Waterfowl Management Area, about 4 miles (air) southwest of Gridley.; 0 23 Comment
  CHSC393  Logfia filaginoides B. Richardson 1929-4-21 Butte Flats above Chico. 67 Comment
  JEPS127021  Logfia gallica Lowell Ahart 2016-6-4 20922 Butte On the north side of Lumpkin Road, about 100 yards north of McCabe Creek, about 3 miles (air) west of Forbestown. Comment
  JEPS107335  Lolium multiflorum Lowell Ahart 2005-4-2 11698 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
  CHSC63800  Lomatium dasycarpum subsp. tomentosum Gerald A. Winter 1989-4-15 10 Butte On n facing slope on s side of Big Chico Creek, ca. 100 yds e of diversion dam but before salmon hole. 76 Comment
  CDA13871  Lomatium macrocarpum G. F. Hrusa, T. D. Wilfred 1997-5-7 13729 Butte Sierra Nevada; above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. Comment
  CHSC42613  Lomatium macrocarpum Vernon Oswald 1985-4-16 1720 Butte Upper Bidwell Park, Chico, on the slope bordering the s side of the Golf Course. Comment
  CDA13872  Lomatium marginatum G. F. Hrusa, T. D. Wilfred 1997-5-7 13730 Butte Sierra Nevada; above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. Comment
  CHSC42623  Lomatium marginatum var. marginatum Vernon Oswald 1985-6-15 1835 Butte Black Bart Rd. ca. 1 mi se of Lampkin Rd. 640 Comment
  CHSC98573  Lomatium marginatum var. marginatum L. P. Janeway; B. Castro 2007-5-6 8970 Butte Northern High Sierra Nevada. Ridge top along a side road north of the road from Sawmill Peak to Flea Valley, 1.8 air km northeast of Sawmill Peak. 969 Comment
  UCD150864  Lomatium marginatum var. marginatum W. R. Powell 1968-5-17 1508 Butte Along new Oro-Feather Road, 4 miles north-northwest of Rackerby. 548 Comment
  SEINET10840943  Lomatium tomentosum Mary Susan Taylor 1980-3-30 Taylor 2412 Butte Upper Bidwell Park, Chico. 244 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
  CHSC87443  Lomatium utriculatum R. D. Fischer 2004-3-28 77 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Found along Guardian Trail 500 ft south of Pine Trail junction. 399 Comment
  SEINET10465152  Lonicera hispidula var. vacillans Lowell Ahart 1985-6-30 Ahart 5082 Butte About 2 1/2 miles north-east of Forbestown. Alt. 2850 ft. 868 Comment
  CAS-BOT-BC241435  Lonicera involucrata var. involucrata A. A. Heller 1928-7-10 14651 Butte At Butte Meadows Comment
  CHSC86143  Lonicera involucrata var. involucrata John Dittes 2002-6-29 625 Butte Northern High Sierra Nevada Range; Watson Ridge; ca. 2.3 air-miles south of Middle Fork Feather River, ca. 2.9 air-mile west by southwest of Cascade, ca. 6.8 air-miles north by northeast of town of Feather Falls. On ridge above FS access road. 1255 Comment
  CHSC38397  Lonicera maackii Vernon Oswald 1983-5-2 408 Butte Upper Bidwell Park, along the N edge of Hooker Oak Recreation Area. Comment
  CHSC109768  Lotus corniculatus Lowell Ahart 2012-10-28 18525 Butte About 50 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  CHSC66160  Lotus corniculatus Vernon H. Oswald; Lowell Ahart 1996-5-27 7671 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. In formerly irrigated pasture in the S paddock of Tract 7, Sanctuary II. 32 Comment
  SEINET10451972  Lotus humistratus Mary Susan Taylor 1978-5-6 Taylor 1571 Butte Just N of Magalia, in large serpentine area along the Skyway. 610 Comment
  UC726735  Lotus incanus A. A. Heller 1939-4-26 15387 Butte along the road leading down to The Feather River from Stirling Comment
  SEINET10451995  Lotus nevadensis Lowell Ahart 1983-5-28 Ahart 4016 Butte Along trail to Feather Falls, ca. 5 mi n of the town of Feather Falls. Yellow Pine Forest; 600 m. 600 Comment
  UC392240  Lotus oblongifolius var. oblongifolius E. B. Copeland 1929-7-1 Butte Butte Creek Jonesville 1550 Comment
  UC426913  Lotus oblongifolius var. oblongifolius E. B. Copeland 1930-7-11 420 Butte Jonesville 1500 Comment
  CHSC21155  Ludwigia peploides M. S. Taylor 1975-10-3 925 Butte In slough at bridge over Big Chico Creek on River Rd, ca. 10 mi w of Chico. 36 Comment
  CHSC61054  Ludwigia peploides subsp. peploides Vernon H. Oswald 1993-7-29 5736 Butte Gray Lodge Wildlife Management Area W of Gridley, 0.3 mi S of Rutherford Rd. on the first levee road E of the headquarters complex. In a drainage ditch. 19 Comment
  UC865565  Lupinus A. A. Heller 1915-5-4 11866 Butte two mi e Durham Comment
  CHSC65560  Lupinus albicaulis L. P. Janeway 1995-6-6 4771 Butte South-trending ridgetop at the far western end of Jackson Ranch Ridge, about 0.9 mi east-northeast of the falls of Feather Falls. 1054 Comment
  CHSC55494  Lupinus albicaulis var. albicaulis L. P. Janeway 1991-6-8 3996 Butte Side ravine on south side of Montgomery Bar Ravine, ca 0.3 mi from Lake Oroville highwater mark. 377 Comment
  SEINET10870639  Lupinus albifrons var. albifrons Melvin L. Conrad, David B. Dunn; Douglas G. LeDoux 1973-6-5 Conrad 7041 Butte Jarbo pass on hwy 70. Yellow pine, california buckeye, and shrubby lupine 701 Comment
  CAS-BOT-BC196247  Lupinus albifrons var. eminens H. E. Brown 1897-4-15 s.n. Butte Near Clear Creek Comment
  SEINET10488450  Lupinus andersonii Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4250 Butte T22N R7E nw sec 31. Ca. 2 mi e of Milsap Bar, ca. 25 mi ne of Oroville. Yellow Pine Forest; 900 m. 900 Comment
  UC426914  Lupinus arbustus E. B. Copeland 1930-6-29 421 Butte Jonesville 1600 Comment
  RSA4647  Lupinus arbustus subsp. silvicola E. B. Copeland 1930-6-29 421 Butte Jonesville. 1600 Comment
  CHSC36149  Lupinus bicolor C. W. Dawson 1978-4-2 13 Butte 2.1 mi. ne of junction of Cal. Hwy. 99 and Pentz Rd. se side of roadway. 60 Comment
  CHSC57378  Lupinus bicolor Sean Brown 1990-4-17 15 Butte Vic. covered bridge, s bank of Butte Ck., ca. 11.6 km ese of Chico. 120 Comment
  SFV11554  Lupinus bicolor M. L. Vincent 1964-4-8 499 Butte Pentz Road, 0.25 miles west of Barnum Road. Comment
  SEINET10940039  Lupinus bicolor subsp. pipersmithii Lowell Ahart 1985-4-1 Ahart 4873 Butte Along Table Mountain Boulevard, near the Cambell Overflow, a little south of the inter- section of Highway 70 and 149, about 7 miles north of Oroville. Comment
  JEPS107276  Lupinus bicolor var. pipersmithii Lowell Ahart 2005-4-18 11733 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
  SEINET10484027  Lupinus densiflorus subsp. lacteus Mary Susan Taylor 1981-5-1 Taylor 3589 A Butte T20N R3E ne/ne sec 22. Oroville quad. NW corner of jct of Hwy 70 with Hwy 149, at Wicks Corner, ca. 4 air mi N of Oroville. Valley Grassland; 400 ft. 122 Comment
  SEINET10450558  Lupinus formosus Lowell Ahart 1984-6-8 Ahart 4682 Butte Along the edge of the dirt road that goes to Lumpkin Ridge Rd, ca. 6 mi NE of Ponderosa Dam, ca. 4 mi SE of Feather Falls; Yellow Pine Forest; 550 m. 550 Comment
  RSA699517  Lupinus latifolius var. columbianus Paul Maslin 2004-4-21 25 Butte Sierra Nevada Range, west of Highway 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). 549 Comment
  CHSC58267  Lupinus microcarpus var. densiflorus Lowell Ahart 1992-5-9 6762 Butte On the north side of the dirt road, on the north side of Thermalito Diversion Pool, Lake Oroville Recreation Area, about 2 (air) miles north of Oroville. 76 Comment
  CHSC84647  Lupinus microcarpus var. microcarpus Matt Quinn 2001-4-26 53 Butte Approximately 1500 feet east of Clark Road and 1/2 mile south of Fallager Creek. 85 Comment
  CHSC34687  Lupinus nanus M. S. Taylor 1981-4-14 3528 Butte NW corner of the jct of Wheelock Rd and Hwy 70, ca. 5 mi n of Oroville. 137 Comment
  UCD108993  Lupinus nanus A. A. Heller 1914-4-21 11311 Butte Chico. Comment
  CHSC109127  Lupinus nanus var. latifolius Lowell Ahart 2012-3-23 17793 Butte Near large rocks, about 250 yards east of Big Chico Creek, about 150 yards west of Ten Mile House Road, below and north of the old homestead, about 3/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. 215 Comment
  SEINET10484149  Lupinus nanus var. vallicola Mary Susan Taylor 1980-5-27 Taylor 2720 Butte N and S sides of Bald Rock Road, ca. 1 mi E of Lake Madrone; Yellow Pine Forest. 671 Comment
  JEPS104131  Lupinus pachylobus Lowell Ahart 2003-4-8 10043 Butte About 40 yd and in the small canyon w of the tall Digger Pine on the south side of Beatson Hollow, ca 3/4 mi nw of the iron gate and fence, nw of Cherokee Rd, North Table Mountain, ca 7 mi (air) n of Oroville. 314 Comment
  POM24970  Lupinus succulentus C. C. Bruce 1898-05 2454 Butte Sacramento River. Comment
  SFV11553  Lupinus succulentus M. L. Vincent 1964-4-9 546 Butte Sierra Nevada Humbug Road. 1 mile west of covered bridge. Comment
  SEINET12161680  Lupinus vallicola Unknown 1980-1 8 Butte Top of Table Mt ca 1 mi N of Cherokee Rd, center of S 17, T20N R4E 381 Comment
  SEINET10870614  Lupinus vallicola subsp. vallicola Parker 1981-4-21 Parker 10 Butte Corolla bright blue, with pale spot on banner. Large population, ca 5 mi s of Pentz rd, 9.0 km e of hwy 70, ca 17 km ssw of paradise. Road drainage area. Soil a sandy gravel overlying rock. 160 Comment
  POM196138  Luzula comosa E. B. Copeland 1929-7-16 345 Butte Jonesville. 1550 Comment
  CHSC113961  Luzula comosa var. comosa Lowell Ahart 2014-7-10 19634 Butte Disturbed dry meadow like area, about 100 yards south of Philbrook Road, about 1 mile (air) wast of Philbrook Reservoir. 1664 Comment
  CHSC50064  Luzula macrantha Lowell Ahart 1990-3-19 6425 Butte Along the south edge of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CHSC55457  Luzula macrantha L. P. Janeway 1991-4-30 3918 Butte At the head of Spring Hollow, 2 mi east of confluence of South and North Forks Feather River (under Lake Oroville). 350 Comment
  CAS-BOT-BC441207  Luzula macrantha Lowell Ahart 1988-3-27 5940 Butte Aboaut 1/10 mile N of the bridge across the North Fork of the Feather River, about 2 miles SE of Jarbo Gap 335 Comment
  SEINET10905125  Luzula macrantha Mary Susan Taylor, L. Hanson 1981-4-10 Taylor 3521 Butte T22N R4E nw sec 2, Pulga SW quad. 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, ca. 21 air mi n of Oroville. Yellow Pine Forest, on granitic soils; 2400 ft. 731 Comment
  CHSC95231  Luzula parviflora L. P. Janeway 2006-8-6 8830 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
  RSA0036439  Lycopus americanus Lowell A. Ahart 2012-10-20 18511 Butte In the marshy area on the north side of Big Chico Creek, south of Table 34, west of Cedar Grove, Lower Bidwell Park, Chico. 69 Comment
  UCD124964  Lycopus americanus Lowell Ahart 1998-7-18 8042 Butte southwest of the lone oak tree, west of the cow chute on the west side of Cherokee Road, North Table Mountain, about 7 air miles north of Oroville. 403 Comment
  CHSC39330  Lythrum hyssopifolia Lowell Ahart 1983-6-26 4132 Butte Along Ponderosa Way, about 1/2 mile west of the East Fork of Canyon Creek, about 14 miles north-east of Oroville. 500 Comment
  CHSC47441  Lythrum hyssopifolia Lowell Ahart 1975-7-19 902 Butte Growing along the edges of 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
  CHSC74097  Lythrum hyssopifolia B. Castro; L. P. Janeway 1996-5-19 662 Butte Ca 3 air mi NE of Chico, in Upper Bidwell Park on spine of ridge between Sycamore and Big Chico Creeks, just S of North Rim Trail. 320 Comment
  JEPS87380  Lythrum hyssopifolia Lowell Ahart 1993-6-13 6957 Butte about 2.25 mi n and 0.25 mi e Honcut (about 12 mi s of Oroville) 33 Comment
  JEPS104343  Lythrum portula Lowell Ahart 2003-6-23 10301 Butte In a rice field, Peter Ahart Ranch, ca 300 yd e of Palermo Honcut Highway, ca 2 1/8 mi n of Honcut, ca 12 mi south of Oroville. 30 Comment
  CDA5125  Lythrum salicaria L. Ahart 2000-7-18 8598 Butte About 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. Comment
  RSA0016015  Lythrum salicaria L. P. Janeway 2006-7-19 8819 Butte Sacramento Valley, Shallow arm of Thermalito Afterbay, 150 m east of Wilbur Road, 2.1 km south of Hwy 162. 41 Comment
  CHSC31886  Maclura pomifera L. Ahart 1976-5-21 1114 Butte Along edge of North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC30038  Madia exigua L. Ahart 1980-5-17 2307 Butte A little east of the Oak Grove Cemetary, ca. 1/2 mi se of Hurleton. 600 Comment
  CHSC43621  Madia exigua Vernon Oswald 1984-5-23 1200 Butte Beside the dirt road leading to the falls on Bear Ranch Creek s-e of Calif. Hwy 70 at the Cresta Rest Area. 487 Comment
  JEPS117316  Madia exigua Lowell Ahart 2010-5-7 16620 Butte On the north side of a trail, west of disk golf area, on a ridge about 350 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 353 Comment
  JEPS120500  Madia exigua L. P. Janeway 2012-6-7 10861 Butte Northern High Sierra Nevada. Southwestern spur of Rocky Ridge, 0.6 air km south of Batchelor Point; along Road 23N06E 0.8 road km southeast of Rim Road / Ponderosa Way. Comment
  POM362159  Madia exigua L. Ahart 1984-6-8 4666 Butte At the Ponderosa Dam, ca. 2 mi NW of Forbestown 370 Comment
  SEINET10475532  Madia exigua Lowell Ahart, Peter Ahart 1983-6-12 Ahart 4050 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-BC334653  Madia glomerata A. A. Heller 1914-8-8 s.n. Butte Jonesville 1524 Comment
  SBBG127937  Madia glomerata L. Ahart 2010-9-21 17223 Butte open area along a poor dirt rd, ca. 1 mi (air) NE of Jones Meadow, ca. 2.5 mi (air) SE of Philbrook Reservoir 1899 Comment
  JEPS98279  Madia gracilis Lowell Ahart 2000-6-29 8543 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
  SD5628  Madia gracilis E. B. Copeland 1931-8-14 697 Butte Jonesville 1500 Comment
  RSA302630  Madia gracilis subsp. gracilis J. R. Shevock 1972-5-19 1772 Butte 10 miles north of Lake Oroville, Highway 70 457 Comment
  SEINET10474828  Madia rammii Mary Susan Taylor 1980-5-27 Taylor 2672 Butte T21N R6E sc sec 30. Big Bend quad. On Big Bald Rock, ca. 3 mi E of Lake Madrone; Yellow Pine Forest, large granite dome 998 Comment
  CHSC2306  Maianthemum racemosum R. M. Staley 1953-7-1 Butte Canyon Creek. Comment
  CAS-BOT-BC510730  Maianthemum racemosum subsp. amplexicaule H. F. Copeland 1916-11-29 1236 Butte Woods near Butte Creek. Comment
  SD8992  Malacothrix floccifera Mrs. R. M. Austin 1883-1 Butte Comment
  CHSC38548  Malva neglecta Vernon Oswald 1983-5-11 475 Butte Upper Bidwell Park, Chico, along the w margin of the Golf Course s of the footbridge. 91 Comment
  CDA38815  Malva parviflora L. Ahart 2012-4-6 17815 Butte On the north side of Big Chico Creek, Lost Park in Bidwell park, city of Chico. Comment
  CHSC46834  Malva parviflora R. A. Schlising 1986-11-28 4510 Butte Gray Lodge Waterfowl Management Area. 18 Comment
  JEPS118074  Malva parviflora Lowell Ahart 2011-5-9 17352 Butte South side of Palm Avenue, about 2 miles (air) southeast of East Biggs 29 Comment
  CHSC20126  Marah fabacea var. agrestis M. S. Taylor 1975-5-6 552 Butte On s side of Big Chico Creed, ca. 60 ft e of Little Cafeteria, California State University, Chico. Comment
  CHSC27241  Marrubium vulgare P. Moyer 1972-5-7 196 Butte CSUC Campus. N bank Chico Ck., e of L.S. Bridge. 60 Comment
  JEPS115835  Marrubium vulgare Lowell Ahart 2009-4-22 15581 Butte East side of the trail, Upper Bidwell Park, just west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 461 Comment
  CHSC65190  Marsilea vestita subsp. vestita Lowell Ahart 1995-7-15 7593 Butte Peter Ahart Ranch, about 1 1/2 miles north and 3/4 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC19636  Matricaria discoidea E. Parreno 1968-5-22 132 Butte Along sidewalk on se corner of Ivy and 1st Sts., Chico. 59 Comment
  UC1601096  Meconella californica Mrs. R. M. Austin Mar 1896 96 Butte Little Chico Creek Comment
  SEINET12089314  Meconella californica Unknown 1978-1 5 Butte ca 900 ft E of Big Chico Creek, ca 1200 ft NE of jct of Humbug and Honey Run Rds, 6.4 mi ESE of 146 Comment
  CDA31966  Medicago lupulina L. Ahart 2009-6-12 15842 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. Comment
  CHSC76418  Medicago lupulina Lowell Ahart 1999-10-28 8315 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 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  RSA754957  Medicago lupulina L. Ahart 2009-6-12 15842 Butte 10-50 yards north of the Bears Lair Picnic Area and Coastal Redwood Grove sign, about 80-130 yards east of Cedar Grove, Lower Bidwell park, Chico. 67 Comment
  CDA31958  Medicago polymorpha L. Ahart 2009-5-8 15662 Butte On the south side of the gravel road, about 10 yards east of Cedar Grove Parking Area in Lower Bidwell Park, Chico. Comment
  CHSC21008  Medicago polymorpha M. S. Taylor 1975-4-25 504 Butte Ca. 20 mi ne of Chico on Cohasset Hwy, ca. 1/2 mi n of Horse trough. Comment
  CHSC35693  Medicago polymorpha J. D. Jokerst 1982-4-19 1532 Butte Top of North Table Mountain, ca 1/4 mi N of Cherokee Rd at the mesa's E edge. Comment
  CHSC90496  Medicago polymorpha L. Orme 1980-3-15 3 Butte West of railroad tracks, 0.8 km southwest of Chico. Edge of a cultivated field. 55 Comment
  CHSC944  Medicago polymorpha E. Canfield 1904-5-10 Butte Hooker Oak field. 76 Comment
  SEINET10452592  Medicago praecox Lowell Ahart 1983-4-10 Ahart 3924 Butte S of a large wash, 1/10 mi e of the large barn, ca. 1.4 mi ne of Hwy 99 and Pentz Rd jct, ca. 16 mi s of Chico. Valley Grassland; 65 m. 65 Comment
  UC171941  Medicago sativa P. L. Ricker 1912-5-9 3920 Butte Chico Comment
  CAS-BOT-BC271132  Melica aristata E. B. Copeland 1929-7-18 337 Butte Jonesville 1550 Comment
  CHSC113424  Melica aristata Lowell Ahart 2014-7-7 19559 Butte About 20 yards east of the Skyway, about one-mile north of Stirling City. 1142 Comment
  RSA4654  Melica aristata E. B. Copeland 1929-7-18 337 Butte Jonesville 1550 Comment
  UC1564803  Melica aristata V. Oswald and L. Ahart 1989-7-12 3843 Butte 0.6 air mi nnw Bald Mt. Lookout (ne of Stirling City, logging road (T-line)) 1560 Comment
  RSA712755  Melica californica L. P. Janeway 2005-5-29 8416 Butte Northern High Sierra Nevada. Top of Rocky Ridge towards its southern end; 2.9 km southwest of Pulga. 960 Comment
  SEINET10599356  Melica californica Lawrence P. Janeway 1995-6-19 Janeway 4797 Butte Cascade quad. T21N R6E S25 SE1/4 NW1/4. About 0.5 mi east of the western end of Jackson Ranch Ridge. Open areas in open ponderosa pine dominated mixed conifer forest. 1097 Comment
  CHSC101464  Melica geyeri L. P. Janeway; Sarah Starkey 2009-7-13 9855 Butte Northern High Sierra Nevada. Northwest side of Concow Road 2.8 air km northeast of upper end of Concow Reservoir, 1.5 road km northeast of Cirby Creek Road. 823 Comment
  RSA500431  Melica geyeri Vernon H. Oswald 1989-5-28 3787 Butte Logging road paralleling the west side of Butte Creek, 3.1 miles south of Humboldt Road (near Butte Meadows). 1293 Comment
  CHSC113426  Melica harfordii Lowell Ahart 2014-7-7 19560 Butte About 20 yards east of the Skyway, about one-mile north of Stirling City. 1142 Comment
  CAS-BOT-BC281020  Melica stricta Vernon Oswald; Lowell Ahart 1987-8-5 3182 Butte Skirting the N flank of Humboldt Peak on the Butte - Plumas county border, S of the Pacific Crest Trail 2072 Comment
  JEPS110218  Melica torreyana Lowell Ahart 2006-5-19 12632 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
  CHSC3161  Melilotus albus Dona Kingsford 1966-4-30 Butte 9 miles SW of Hooker Oak Tree in Bidwell Park at Salmon Hole. Comment
  CHSC36549  Melilotus albus L. Ahart 1982-7-10 3670 Butte On bottm of a dry duck pond, ca. 1/4 mi se of Headquarters, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  UCD107993  Melilotus albus L. Ahart 1982-7-10 3670 Butte 1/4 mi se of HQ, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. Comment
  SEINET10452218  Melilotus albus Mary Susan Taylor 1975-7-4 Taylor 830 Butte On S side of Big Chico Creek, at Five Mile Dam, Upper Bidwell Park, Chico. 91 Comment
  CHSC24804  Melilotus indicus E. L. Rilla 1976-9-18 28 Butte .5 mi s of Gridley Rd on Pennington Rd in the Gray Lodge Waterfowl Management Area. Bench Marker 72, 1 mi directly w of collection area. 21 Comment
  RSA75002  Mentha arvensis L. Ahart 2006-9-11 13285 Butte South edge of the North Fork of the Feather River, north side of Highway 760, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville. 432 Comment
  CHSC20720  Mentha canadensis M. S. Taylor 1975-8-31 885 Butte On Ernies Island in Butte Creek, ca. 50 ft s of Humboldt Rd, ca. 1/2 mi e of Butte Meadows. 1341 Comment
  CHSC31791  Mentha canadensis L. Ahart 1978-8-30 1802 Butte Peter Ahart Ranch, Honcut. Along edges of North Honcut Creek. 50 Comment
  CDA40724  Mentha canadensis T. C. Fuller 1962-7-12 9176 Butte Road to Jonesville, 2 miles east of Butte Meadows. 0 Comment
  CHSC50998  Mentha pulegium Lowell Ahart 1990-7-22 6574 Butte Growing on the bottom of Wyman Ravine, on the east side of Lincoln Boulevard, Palermo. 45 Comment
  UCD117215  Mentzelia dispersa E. B. Copeland 1929-7-19 385 Butte Jonesville, along Butte Creek. Comment
  CAS-BOT-BC428767  Micranthes californica M. S. Taylor; K. Tharp 1983-3-12 5235 Butte Along small rd off Stillson Canyon Rd (leading to Mannion property), ca. 3 mi sse of Chico. 152 Comment
  CHSC39241  Micranthes californica M. S. Taylor; K. Tharp 1983-3-12 5235 Butte Along small rd off Stillson Canyon Rd (leading to Mannion property), ca. 3 mi sse of Chico. 152 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
  CHSC24941  Micranthes integrifolia W. A. Vaccaro 1976-4-17 2 Butte Ca. 2.3 mi e of Centerville, on s side of Humbug Road. 128 Comment
  CHSC3287  Micranthes integrifolia M. L. Hillier 1966-3-6 Butte 4 miles s.e. of C.S.C. Admin. build. on the Skyway to Paradise about 50 ft. from the rd. on the s. side of Butte Creek. Comment
  CHSC39607  Micranthes integrifolia Lowell Ahart 1983-2-21 3902 Butte Peter Ahart Ranch, about 2 1/2 miles north and 1/2 mile east of Honcut. 35 Comment
  CHSC12118  Micropus californicus var. californicus M. F. Smith 1972-5-3 7 Butte 300 yds. southwest of intersection of Pentz Road and Paradise-Oroville Highway. 152 Comment
  JEPS115318  Micropus californicus var. californicus Lowell Ahart 2009-4-17 15554 Butte On the south slope of a ridge, about 300 yards west of Highway 32, near the south boundary, Upper Bidwell Park, about 5 miles (air) northeast of Chico 351 Comment
  CHSC51046  Microseris sylvatica J. D. Jokerst 1985-4-16 1971 Butte Cherokee area east of Table Mt, south of Campbell Flat in my backyard. Comment
  CHSC54092  Microseris sylvatica Vernon H. Oswald; Lowell Ahart 1991-5-13 4588 Butte Dan Beebe Trail in Lake Oroville Recreation Area, between Canyon Drive and Oroville Dam Blvd East (opposite the spillway). 121 Comment
  CHSC24988  Microsteris gracilis M. Coulon 1974-3-3 39 Butte Located along the w side of Cohasset Road approx. 10 miles n of Chico, near Seven Toed Petes Wildlife refuge. Comment
  CHSC20384  Mimetanthe pilosa L. M. Mayer 1975-6-21 400 Butte Growing beside the Sacramento River below Ord Ferry Bridge. Comment
  HSC23384  Mimulus angustatus G. G. Poulsen, Jr. 1971-4-13 9 Butte Ca. 2 mi. N of Oregon City turnoff on Cherokee Rd. 427 Comment
  RSA169398  Mimulus aurantiacus var. grandiflorus L. S. Rose 1963-6-5 63139 Butte North Fork of Feather River, Arch Rock Tunnel. 488 Comment
  UC1577071  Mimulus aurantiacus var. grandiflorus C. G. Albertus 1933-6-6 17 Butte 1 mi nw Nelson's Bar; Chico Quadrangle Comment
  JEPS4727  Mimulus bicolor Lincoln Constance 1941-5-28 2831 Butte Magalia Sierra Nevada foothills, South Branch Feather River 487 Comment
  POM173673  Mimulus breweri H. F. Copeland 1928-8-17 958 Butte Jonesville. Comment
  SEINET12319568  Mimulus cardinalis J. P. Kroessig 1977-1 21 Butte along E bank of West Branch Feather River, ca 13 km WNW of Paradise 488 Comment
  JEPS4702  Mimulus glaucescens A. A. Heller 1914-4-29 11340 Butte 8 mi s Vina; Pine Creek Comment
  RSA0087956  Mimulus glaucescens Christopher T. Ivey 2013-5-9 380 Butte Pulga Road, near intersection with Hwy 70. 490 Comment
  JEPS110327  Mimulus guttatus Lowell Ahart 2006-7-25 13063 Butte In the west part of a large meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
  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
  UC196160  Mimulus guttatus A. A. Heller 1914-6-22 11492 Butte Chico Meadows Sierra Nevada 1219 Comment
  RSA535533  Mimulus kelloggii David M. Thompson 1988-6-8 938 Butte 0.1 mi NW of Hwy 70 along Pulga Road (Pulga Road leaves Hwy 70 at W side of Feather River bridge). 500 Comment
  JEPS87142  Mimulus leptaleus Lowell Ahart 1992-7-29 6870 Butte about 1/2 mi nw Lotts Lake (about 1 mi e of the Carr Mine) 1828 Comment
  UC426953  Mimulus primuloides E. B. Copeland 1930-7-15 460 Butte Jonesville 1500 Comment
  UC426954  Mimulus primuloides E. B. Copeland 1930-7-15 460 A Butte Jonesville 1500 Comment
  SEINET10570265  Mimulus primuloides Mary Susan Taylor 1978-7-19 Taylor 1790 Butte Scattered in meadow on N end of Snag Lake between creek and Humbug Road, ca. 3 mi S of junction of Humbug Road and Scotts John Road; Yellow Pine Forest and Montane Meadow. 1676 Comment
  CHSC4191  Minuartia californica Kathy Sommarstrom 1967-3-25 6 Butte Found 7.9 miles from freeway overpass to Paradise on Skyway, 20 yards to left of Hwy. 274 Comment
  RSA636047  Minuartia californica Michael A. Vincent, Ethan H. Freid 1998-4-6 8122 Butte Table Mountain. Comment
  SEINET10537563  Minuartia californica Mary Susan Taylor 1974-3-3 Taylor 69 Butte Burton's Mesa, ca. 13 mi E of Chico on the Skyway to Paradise. Associates: Nemophila heterophylla, Brodiaea pul chella, Arenaria californica. 335 Comment
  CHSC96571  Minuartia douglasii L. P. Janeway 2006-5-14 8597 Butte Northern High Sierra Nevada. Upper part of open serpentine slope just west of Jordan Hill Road; 0.9 km east of Sawmill Peak lookout. 953 Comment
  CAS-BOT-BC433046  Mitella pentandra E. B. Copeland 1930-6-24 644 Butte Jonesville 1500 Comment
  UCD98350  Moenchia erecta subsp. erecta Lowell Ahart 2000-5-9 8332 Butte south side of the Oak Grove Cemetary, about 1/2 mile southeast of Hurleton, about 10 miles (air) northeast of Oroville. 548 Comment
  CDA3371  Mollugo verticillata L. Ahart 2002-10-17 9983 Butte About 1 1/2 miles south of Highway 162 (Oroville Quincy Highway), about 3 miles (air) northeast of Oroville Dam. On the gentle hills below the high water line of Lake Oroville. Comment
  JEPS120585  Mollugo verticillata Lowell Ahart 2013-11-18 19271 Butte Below the high-water line of Lake Oroville, about 200 yards east of the boat ramp at the end of Stringtown Road, about 2.5 air miles northeast of Hurleton. Comment
  JEPS29837  Mollugo verticillata Rimo Bacigalupi and L. R. Heckard 1962-6-1 8581 Butte road to Centerville (about 200 ft e of its inception at the Paradise Road Junction) 60 Comment
  JEPS93834  Mollugo verticillata Lowell Ahart 1998-7-1 8029 Butte about 7 air mi n of Oroville (20 yards s of a east west fence, in the tracks of poor dirt road about 5/8 mi n of the cow chute along Cherokee Road, North Table Mountain); North Table Mountain 403 Comment
  CAS-BOT-BC435066  Mollugo verticillata John Thomas Howell 1959-9-20 34635 Butte Eastern outskirts of Oroville 60 Comment
  SEINET10865494  Monardella Mary Susan Taylor 1978-7-19 Taylor 1751 Butte On W side of Upper Scotts John Road, ca. 2 mi N of its junction with Scotts John Road, ca. 4 mi E of Jonesville. 1829 Comment
  CHSC38477  Monardella breweri subsp. lanceolata Vernon Oswald 1983-6-27 766 Butte Upper Bidwell Park, Chico, in the bed of Lindo Channel near the diversion weir. 79 Comment
  CHSC43018  Monardella odoratissima subsp. pallida L. P. Janeway 1987-7-5 2457 Butte 2.5 mi N of Jones Mdw along rd to Philbrook Res. 1920 Comment
  HSC87333  Monardella odoratissima subsp. pallida L. P. Janeway 1987-7-4 2422 Butte Last Chance Creek, along rd. to Jones Meadow 6.5 mi. from Inskip 1524 Comment
  JEPS117416  Monardella odoratissima subsp. pallida Lowell Ahart 2010-9-28 17247 Butte Along the east side of Big Kimshew Creek, about 100 yards east of the poor dirt road, about 1-1/2 miles (air) northeast of Jones Meadow, about 2-1/2 miles (air) southeast of Philbrook Reservoir 1886 Comment
  CAS-BOT-BC314187  Monardella odoratissima subsp. pallida E. B. Copeland 1927-7-7 s.n. (distributed as UCBerkeley's 452 ) Butte Jonesville. 1550 Comment
  CHSC112680  Monardella sheltonii Lowell Ahart 2013-7-1 18819 Butte Edge of a dry meadow, about 30 yards southwest of the intersection of Forbestown Road and Black Bart Road, about 3 1/4 miles (air) southwest of Forbestown. 737 Comment
  CHSC60989  Monardella sheltonii Lowell Ahart 1993-7-6 7062 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CAS-BOT-BC220309  Monardella venosa L. P. Janeway; B. Castro 1992-5-16 4187 Butte Small canyon between Hamlin Canyon and the unnamed canyon on the southeast side of Neal Road opposite the entrance to the Butte County Land Fill; ca 1 1/2 mi northeast of Hwy 99 73 Comment
  UC2035834  Monardella villosa subsp. villosa Chester Dudley 1940-6-1 Butte near Magalia Comment
  CHSC32844  Montia fontana subsp. chondrosperma D. J. Everett 1981-4-16 15 Butte North Table Mountain, s side of Campbell Creek, Beatson Hollow, ca. 6.5 mi n of Oroville, ca. 20 mi se of Chico. 335 Comment
  CHSC61992  Montia parvifolia Lowell Ahart 1993-7-22 7079 Butte In the campground on the west side of the bridge across Fall River, about 9 (air) miles north-east of Feather Falls. 1036 Comment
  UC1586595  Montia parvifolia Vernon H. Oswald and Lowell Ahart 1991-6-5 4652 Butte 1.5 air mi nw of Platte Mountain Lookout (dirt road to Minnie-Ha-Ha Mine on Big Chico Creek, on w side of Hwy 32, between Forest Ranch and Lomo); Big Chico Creek 792 Comment
  RSA325117  Montia parvifolia M. S. Taylor 1981-5-7 3634 Butte N side of Ponderosa Way, N of the Sucker Creek bridge, 4 air miles SW of Feather Falls community. 366 Comment
  CAS-BOT-BC264288  Muhlenbergia andina Lowell Ahart 1987-6-9 5740 Butte On the east side of the North Fork of the Feather River, near the Poe Power House, about 2 miles outh-east of Jarbo Gap 271 Comment
  CHSC42438  Muhlenbergia asperifolia Lowell Ahart 1987-5-27 5708 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
  SD264  Muhlenbergia filiformis E. B. Copeland 1929-7-16 339 Butte Jonesville, open wet ground 1550 Comment
  CHSC51291  Muhlenbergia mexicana Lowell Ahart 1990-10-21 6635 Butte Below the high water line of Lake Oroville, about 1 mile north of Nelson Bar Road, about 1/2 mile west of Gold Flat. 213 Comment
  CHSC12765  Myosurus apetalus var. borealis T. Rinker 1974-4-23 23 Butte Found in vernal pool at Broyles Road and Hwy. 99, ca. 14 mi n of Chico. 54 Comment
  CHSC32131  Myosurus minimus L. Ahart 1974-4-28 446 Butte In rice field, Peter Ahart Ranch, Honcut. 45 Comment
  CHSC43727  Myosurus minimus Lowell Ahart 1981-4-6 2747 Butte South-east of the Gray Lodge Headquarters, about 8 miles south-west of Gridley. 28 Comment
  CHSC31006  Najas guadalupensis M. S. Taylor 1978-7-21 1846 Butte Ca. 20 ft e of the Midway, ca. 7 mi s of Durham, in rice field. 30 Comment
  SEINET8470605 Image available Najas guadalupensis subsp. guadalupensis J. M. Tucker 1953-8-28 2682 Butte Biggs Rice Experiment Station. Comment
  RSA4126  Nama lobbii E. B. Copeland 1930-6-27 s.n. Butte Jonesville. 1600 Comment
  CAS-BOT-BC260096  Nassella pulchra Lowell Ahart 1983-6-15 4055 Butte Peter Ahart Ranch, ca. 1.5 miles N and 3 miles E of Honcut 50 Comment
  CHSC38860  Nassella pulchra Vernon Oswald 1983-4-9 298 Butte Upper Bidwell Park, Chico, at about the 500 ft level on the north slope 300 ft w of the power lines. Comment
  UC600661  Navarretia capillaris E. B. Copeland 1931-7-12 Butte ridge between Jones Creek and Willow Creek (Jonesville); , btw Jones Creek and Willow Creek 1700 Comment
  UC600662  Navarretia capillaris H. F. Copeland 1932-7-24 Butte Jonesville Jonesville (by small stream running down from the w to Butte Creek meadows) Comment
  CHSC34986  Navarretia divaricata R. A. Schlising; R. Banchero 1981-5-20 4059 Butte E part of county, Lumpkin Ridge. Comment
  SEINET179620  Navarretia filicaulis H. F. Copeland 1932-6-24 unknown Butte Near Hog Springs, about 5 miles north of Chico Comment
  JEPS107895  Navarretia heterandra Lowell Ahart 2005-5-28 11824 Butte Bottom of vernal pools, pasture, on the north side of Falager Ct., south of the Durham Pentz Road, east of Highway 99 East, about 4 miles east of Durham 67 Comment
  UCD77884  Navarretia heterandra Robert E. Preston 2005-6-13 2353 Butte Ca. 4 mi NW of Oroville, in field along N side of Cottonwood Rd 54 Comment
  CHSC39340  Navarretia intertexta Lowell Ahart 1983-6-26 4140 Butte Along the East Fork of Canyon Creek, along Ponderosa Way, about 14 miles north-east of Oroville. Note: the sign gives Big Ridge Road instead of Ponderosa Way. 500 Comment
  CHSC39953  Navarretia intertexta L. Ahart; P. Ahart 1983-6-26 4140 Butte Along edge of East Fork Canyon Creek, near Ponderosa Way (Big Ridge Rd), ca. 14 mi ne of Oroville. 500 Comment
  SEINET3696384 Image available Navarretia intertexta Lewis S. Rose 1933-5-27 33193 Butte Bangor. 267 Comment
  CHSC101824  Navarretia intertexta subsp. intertexta Lowell Ahart 2009-5-23 15766 Butte Along a small drainage, on the west side of Guardians Trail, just northwest 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
  CHSC91455  Navarretia intertexta subsp. intertexta Lowell Ahart 2005-7-13 12147 Butte About 10 yards east of the intersection of Forbestown Road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown, about 12 miles (air) east of Oroville. 759 Comment
  UC600669  Navarretia intertexta subsp. propinqua E. B. Copeland 1931-7-17 Butte Dry Lake Jonesville Comment
  CHSC20897  Navarretia leptalea M. S. Taylor 1975-8-31 883 Butte On Ernies Island in Butte Creek, ca. 50 ft s of Humboldt Rd, ca. 1/2 mi e of Butte Meadows. 1341 Comment
  RSA470049  Navarretia leptalea H. F. Copeland 1928-8-18 374 Butte Neighborhood of Jonesville. 1524 Comment
  CHSC103999  Navarretia leucocephala subsp. leucocephala Lowell Ahart 2010-6-20 16827 Butte Large vernal pool, 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
  RSA717291  Navarretia leucocephala subsp. leucocephala L. Ahart 2005-5-28 11818 Butte On the south side of Nelson Avenue, east of the bridge across the Thermalito Forebay, Thermalito 67 Comment
  JEPS9647  Navarretia nigelliformis subsp. nigelliformis A. A. Heller 1914-5-14 11402 Butte pastured field near Dry Creek (sw of Pentz) Comment
  CHSC12747  Navarretia pubescens L. V. Ritter 1969-5-5 262 Butte Ca 200 yds. w of Horseshoe Lake, Bidwell Park, 50 yds. n of the Park Rd. Comment
  CHSC1297  Navarretia pubescens V. Holt 1942-5-23 Butte Salmon Hole, Chico Creek. 152 Comment
  CHSC36707  Navarretia pubescens D. H. Ikeda 1980-5-26 388 Butte 1.4 mi w of junction of Lunt Rd. and Nelson-Bar Rd. Comment
  CHSC96231  Navarretia subuligera R. Fischer 2006-5-21 997 Butte Sierra Nevada foothills, adjacent Hwy. 32, below Forest Ranch in the Big Chico Creek Ecological Reserve off Lookout Trail. Plants were growing adjacent a seasonal spring on the east side of the Overlook Road. 518 Comment
  SEINET10496837  Navarretia tagetina Mary Susan Taylor 1974-5-7 Taylor 230 Butte In patches on N side of Pentz Road, ca. 3 mi E of Hwy 99. Valley Grassland, with Brodiaea sp., Calochortus luteus. Comment
  RSA0043183  Nemophila heterophylla A. A. Heller 1938-3-27 15004 Butte Cohasset Road, a roadside bank sheltered by a stone wall and more or less shaded. 122 Comment
  RSA75804  Nemophila heterophylla Lincoln Constance, J. L. Morrison 1938-4-30 2177 Butte Between Big and Little Chico creeks, 8 miles north of Chicho, Sierra Nevada foothills. 610 Comment
  UC24206  Nemophila menziesii Winifred Paine 1902-3-29 Butte Chico Comment
  CHSC115293  Nemophila pedunculata Lowell Ahart 2015-4-27 20088 Butte On the bottom of the stream, about 5/8 mile northwest of the iron gate along Cherokee Road, Beatson Hollow, North Table Mountain, about 7 miles (air) north of Oroville. 304 Comment
  JEPS107353  Nemophila pedunculata Lowell Ahart, Paul Maslin, John Dittes 2005-3-17 11678 Butte Big Chico Creek Ecological Reserve. On the east side of Chico Canyon Road, about 1 mile (air) west of Highway 32, about 7 miles (air) northeast of Chico 236 Comment
  CHSC39096  Nemophila spatulata R. A. Schlising 1983-8-27 4451 Butte N part of county, at Coon Hollow. In small meadow. 1706 Comment
  CHSC70797  Nemophila spatulata B. Castro 1995-5-18 570 Butte Ca 2 air mi N of Feather Falls, towards western end of Watson Ridge, in meadow at the old Watson Cabin site, north of USFS Rd 21N25. In upper third of meadow, in very moist soil just downslope from spring. 1109 Comment
  SEINET10497064  Nemophila spatulata Mary Susan Taylor 1978-6-24 Taylor 1660 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
  UCD110175  Notholithocarpus densiflorus Leonard H. Day 1948-7-11 s.n. Butte About 5 miles above town of Feather Falls at top of Quartz Hill on road to Cascade. 1371 Comment
  CHSC2301  Odontostomum hartwegii R. Carter 1964-5-3 78 Butte North Table Mt., 300 uds. NW of where Old Cherokee Rd. comes over S rim. 396 Comment
  JEPS28172  Odontostomum hartwegii A. A. Heller 1938-5-22 1510 a Butte near airport n.e. of Chico Comment
  SEINET12342944  Odontostomum hartwegii Unknown 1936-1 13214 Butte along Mud Creek near Chico Comment
  CAS-BOT-BC171464  Oenothera campestris 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
  SEINET12164650  Onobrychis viciifolia M. S. Taylor 1981-1 3799 Butte T23N R5E sw1/4Sw1/4 Sec 29. Pulga Quad. N of Flea Valley Crk drainage + Pulga, ca5airmiE of Magalia 1067 Comment
  CHSC25436  Oreostemma alpigenum var. andersonii Marc Hayes; Warner 1977-9-11 71 Butte Ca. 10 m N of Humboldt Rd., exactly 6.9 mi from the turn to Butte Meadows along Hwy 32. 1219 Comment
  JEPS114177  Orobanche fasciculata L. P. Janeway 2006-5-31 8650 Butte Northern High Sierra Nevada. Plumas National Forest; northwest side of Rim road (Ponderosa Way) at southern end of Rocky Ridge and southern end of its serpentine openings. Comment
  CAS-BOT-BC499845  Orobanche fasciculata C. R. Quick 1951-6-5 51 -89 Butte 13 mi from Chico on Deer Creek Road Comment
  CAS-BOT-BC499849  Orobanche fasciculata Ahart; Jokerst 1985-5-10 4961 Butte 1/2 mi E of Potter Ravine, S of the east branch of Potter Ravine, 2.5 mi NE of Oroville Dam 350 Comment
  SEINET10500393  Orobanche fasciculata var. franciscana Mary Susan Taylor 1978-5-6 Taylor 1621 Butte Along Cohasset Road, ca. 8 mi N of Chico; Foothill Woodland. 137 Comment
  UC426927  Orthilia secunda E. B. Copeland 1930-8-7 434 Butte Jonesville 457 Comment
  SEINET10832402  Orthocarpus attenuatus Mary Susan Taylor 1974-5-3 Taylor 214 Butte Ca. 500 yds E of Hwy 70, ca. 15 mi N of Oroville. Associates: Lupinus bicolor, Quercus, Erodium, Geranium molle, Geranium dissectum. Comment
  SEINET12270186  Orthocarpus attenuatus C. C. Bruce 1897-1 2087 Butte Iron Canon Comment
  RSA176419  Orthocarpus campestris A. A. Heller 1927-4-25 14349 Butte Near the 'Y' along the state highway between Oroville and Richvale. This station is not many miles from where Hartweg collected the type. Comment
  RSA325942  Orthocarpus campestris L. Ahart 1984-4-25 4585 Butte Peter Ahart Ranch, 2.5 miles Ne of Honcut, 12 miles S of Oroville, Valley Grassland. 50 Comment
  POM252807  Orthocarpus hispidus A. A. Heller 1938-7-20 15287 Butte Upper end of Snag Lake, East of Chaparral. 1524 Comment
  CHSC93967  Osmorhiza chilensis R. D. Fischer 2004-6-20 746 Butte Sierra Nevada Mountains, north-east corner of Butte County and ca. 4 miles north of Butte Meadows off Scout Road. Boy Scout Camp. Collected off a wooded side road, east side of camp and Chico Meadows. 1371 Comment
  CHSC20516  Oxalis rubra M. S. Taylor 1975-6-25 808 Butte In lawns, 1456 Arcadian, Chico. 60 Comment
  CAS-BOT-BC316886  Packera eurycephala var. lewisrosei John Thomas Howell 1967-6-22 42619 Butte Magalia 701 Comment
  JEPS32708  Packera eurycephala var. lewisrosei Lewis S. Rose 1963-6-2 63067 Butte 2 mi s Pulga; North Fork of Feather River 579 Comment
  CHSC4395  Panicum acuminatum var. acuminatum R. L. Smith 1966-5-20 Butte Paradise, 5 mi sw of Post Office. Comment
  CAS-BOT-BC253702  Panicum capillare A. A. Heller 1916-9-30 12665 Butte S [5?] miles N of Oroville Comment
  JEPS115064  Panicum capillare Lowell Ahart 2007-10-31 14513 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
  CHSC110344  Panicum dichotomiflorum B. Castro 2006-8-25 1606 Butte Sacramento Valley. CA 1.9 mi W of Hwy 99 and 1 mi E of Richvale, immediately N of Richvale Hwy in Cherokee Canal. On E side of canal about 120 ft in from toe of E levee. 32 Comment
  CHSC36099  Parnassia palustris R. A. Schlising; K. Tarp 1982-7-24 4337 Butte E of Stirling City at West Branch of the Feather River, below Diversion Dam on Retson Road. 975 Comment
  UC1259504  Paronychia ahartii Lowell Ahart 1978-4-27 Butte Peter Ahart Ranch Honcut 50 Comment
  UC625524  Parvisedum pumilum Frank W. Gould 1938-4-23 306 Butte 2 mi n of Chico (along road) 60 Comment
  CHSC26446  Paspalum dilatatum P. Moyer 1971-10-24 49 Butte CSUC Campus. South bank of Chico Ck. behind Archeology Bldg. 'B'. 60 Comment
  UCD88740  Paspalum dilatatum J. Jones 1923-9-15 s.n. Butte Biggs Rice Station. Comment
  UC1037265  Paspalum distichum E. Wilson 1934-9-3 70 Butte Biggs Rice Station Comment
  CAS-BOT-BC202814  Paxistima myrsinites M. S. Taylor; L. Hanson 1981-5-12 3689 Butte Jct of French Creek and 22N93, ca. 3.5 air mi s of Coyote Gap, ca. 17 air mi ne of Oroville 853 Comment
  CHSC61709  Pectiantia pentandra Lowell Ahart 1993-8-8 7149 A. Butte On bottom of stream, in area mined for gold, about 1/2 mile north-west of Lewis Flat, about 3/4 mile north-west of the Sly Creek Dam. 1097 Comment
  CHSC108988  Pectocarya pusilla Lowell Ahart 2012-4-30 17936 Butte On the east side of Guardian Trail, about 300 yards north of Humboldt Trail, north of Bloody Pin Trail, about 1/8 mile west of Highway 32, about 8 miles northeast of Chico, south part of Upper Bidwell Park. 361 Comment
  SEINET13753689  Pedicularis densiflora M. J. Williams 1967-4-15 s. n. Butte Jarbe Gap 701 Comment
  SEINET10529978  Pellaea Mary Susan Taylor 1983-1-17 Taylor 5217 A Butte T20N R4E ne sec 6. Vicinity of mouth of Flag Canyon. On top of North Table Mt., ca. 8 mi n of Oroville. Elevation ca. 1225 ft. 373 Comment
  CHSC40285  Pellaea brachyptera Lowell Ahart 1985-6-17 5054 Butte Lumpdin Ridge, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 975 Comment
  SEINET10529800  Pellaea mucronata Mary Susan Taylor 1980-7-20 Taylor 3193 Butte Big Bald Rock, ca. 3 mi E of Lake Mad rone, NE of Oroville. With L. Ahart, R. Schlising & J. Jokerst. 998 Comment
  SEINET10529811  Pellaea mucronata Mary Susan Taylor 1981-4-5 Taylor 3482 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
  UC1609391  Pellaea mucronata var. mucronata Lowell Ahart 1993-7-6 7063 Butte ca. 9 air mile nw of Lost Creek Reservoir Dam (Mooreville Ridge, Jackass Flat); Jackass Flat, Mooreville Ridge 1158 Comment
  CHSC44733  Penstemon azureus R. Banchero 1980-6-5 190 Butte Along Hwy 70 near bridge over the Feather River, ca 4.3 mi N of the jct of Pinkston Canyon Rd and Hwy 70. 487 Comment
  NY91054  Penstemon corymbosus var. puberulentus H. M. Hall 1914-7-19 6763 Butte Richardson Springs near Chico. Upper Sonoran Zone. 152.4 Comment
  CHSC52140  Penstemon heterodoxus var. shastensis L. P. Janeway; R. A. Schlising 1988-7-1 2917 Butte Bench on N-facing flank of Snow Mtn. 2011 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
  POM43798  Penstemon heterophyllus subsp. purdyi C. C. Bruce 1897-04 2009 Butte Little Chico. Comment
  POM195767  Penstemon heterophyllus subsp. purdyi A. A. Heller 1926-4-21 13926 Butte Along Rock Creek, 7 miles N of Chico. (Type collected probably in the vicinity of Chico). Comment
  CHSC42069  Penstemon heterophyllus var. purdyi Steve Holloway 1986-4-18 26 Butte 20 m w of Hwy 32, 15.6 km ne of Chico. 540 Comment
  CHSC62138  Penstemon laetus var. leptosepalus L. P. Janeway 1993-6-23 4398 Butte Plumas National Forest. Upper end of Galen Ridge, 250 ft northwest of Bald Rock Road 0.7 mi southwest of Oroville-Quincy Hwy. 1036 Comment
  RSA718790  Penstemon laetus var. leptosepalus L. P. Janeway 2006-6-25 8697 Butte Along a major dirt road 2.6 km south of Stirling City towards West Branch Feather River crossing. 1006 Comment
  UC887104  Penstemon laetus var. leptosepalus Lewis S. Rose 1939-6-7 39236 Butte 3 mi s Pulga (S Fork Feather River); , s of Pulga 609 Comment
Read comments
Jul 24 2008
  UC1012164  Penstemon laetus var. leptosepalus F. W. Pennell and A. A. Heller 1940-6-5 25682 Butte Route 24 along Feather River (above Oroville, in Lassen Nat. Forest); Lassen Nat. Forest, along Feather River 640 Comment
  CHSC30081  Penstemon neotericus M. S. Taylor; J. D. Jokerst, L. Ahart 1980-8-2 3204 Butte Humboldt Peak on w side of trail. 2154 Comment
  SEINET5329275 Image available Penstemon personatus S. Urie 1988-8-18 s.n. Butte 1554 Comment
  CDA41988  Penstemon rydbergii var. oreocharis T. C. Fuller 1962-7-12 9198 Butte Road to Jonesville, 2 miles east of Butte Meadows. 0 Comment
  CHSC39815  Pentagramma triangularis Ruby Gist 1935-3-30 Butte Fern Banks. Comment
  SEINET12318334  Pentagramma triangularis D. A. Durham 1978-1 6 Butte S slope Butte Creek, near Covered Bridge on Honeyrun Road, 6.5 mi SE of Skyway-Hwy 99 Jct, at Chico 122 Comment
  CHSC27953  Pentagramma triangularis subsp. semipallida M. S. Taylor 1979-3-20 1958 Butte Along north fork of Feather River, ca. 3 mi n of jct of Feather River and Hwy 70, ca. 10 mi n of Oroville. 304 Comment
  POM82590  Perideridia bolanderi subsp. involucrata C. C. Bruce 1897-06 2047 Butte [no locality information provided] Comment
  CHSC74059  Perideridia parishii subsp. latifolia B. Castro 1998-7-28 815 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. 929 Comment
  POM161669  Perideridia parishii subsp. latifolia E. B. Copeland 1929-07 s.n. Butte Jonesville. 1550 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
  SBBG120023  Persicaria lapathifolia L. Ahart 2006-9-11 13289 Butte S edge of the N Fork of the Feather River, N side of Hwy 70, ca. 1/8 mi W of the Poe Dam, ca. 0.75 mi NE of Pulga 431 Comment
  CHSC21144  Persicaria maculosa M. S. Taylor 1975-10-3 924 Butte Abundant in mud on Big Chico Creek, under bridge over River Rd, ca. 10 mi w of Chico. 36 Comment
  CHSC38691  Persicaria maculosa Vernon Oswald 1983-5-8 452 Butte Upper Bidwell Park, Chico, at the s-w corner of the Omicron Plot ca. 500 ft e of the junction of Wildwood Ave. and Upper Park Rd. 85 Comment
  JEPS127591  Persicaria pensylvanica B. Castro with Margie Graham and Stephanie Chun 2009-7-1 1798 Butte Sacramento Valley. 10 air mi W of Gridley, 0.4 mi S of Gridley Road, off SE bank of Cherokee Canal 0.2 mi NE of southward bend in canal. Sanborn Slough 7.5' Quad. Comment
  JEPS119525  Persicaria punctata Lowell Ahart 2011-10-29 17724 -A Butte On the south side of Biggs Princeton Road, about 500 yards west of Riceton Highway, about 1 miles northwest of Biggs. Comment
  CAS-BOT-BC419321  Persicaria punctata A. A. Heller 1914-7-15 11578 Butte Hills 8 miles north of Oroville Comment
  CHSC2390  Petrorhagia dubia R. Carter 1965-5-19 214 Butte Found 7 mi. E of Oroville, along N side of Feathervale Ave., 20' from intersection with Wyandott LaPort Rd. 274 Comment
  CHSC37286  Petrorhagia dubia M. S. Taylor 1982-5-2 4382 Butte Along Truex Rd ca. 1/2 mi w of its jct with Hwy 70, ca. 10 air mi n of Oroville. Comment
  CHSC90073  Petrorhagia dubia Charlie Crannell 1991-4-22 10 Butte Along side of Hwy 32, 4.1 mi northeast of Chico. 243 Comment
  CHSC52403  Phacelia egena R. Smallwood 1969-4-25 19 Butte Butte Cr Cyn; Honey Run Rd at the Covered Bridge; 15 yds NW of old bridge. 137 Comment
  CHSC28793  Phacelia hastata subsp. hastata J. D. Jokerst 1979-7-21 298 Butte Humboldt Rd., N.E. corner of Butte County, at Humboldt summit. Comment
  SEINET12331808  Phacelia heterophylla L. Ahart, Ahart, P. 1984-1 4722 Butte ca 1.5 mi SE of Bald Mountain, 0.75 mi W of Oak Point, about 4 mi NE of Stirling City 1500 Comment
  UC1228322  Phacelia heterophylla subsp. virgata L. R. Heckard 1952-6-20 320 Butte road bank about 2 mi above (ne) Pulga; canyon of the Feather River Comment
  CHSC48476  Phacelia tanacetifolia Vernon Oswald 1985-4-15 1710 Butte Upper Bidwell Park, Chico, on the north rim ca. 1 mi e of the power lines. 320 Comment
  POM73395  Phacelia tanacetifolia C. C. Bruce 1898-05 2389 Butte Big Chico. Comment
  CHSC32604  Phalaris brachystachys J. D. Jokerst 1979-11-11 636 A Butte Goodspeed-Watt Road 0.1 mi N of its jct with Nelson Rd. Area adj to canal. Comment
  CHSC97006  Phalaris brachystachys B. Castro; R. A. Schlising 2005-5-29 1478 Butte Ca 6 air mi SE of Chico, in bottom of canyon SE of Neal Rd, ca 100 ft nw of intermittent creek. 85 Comment
  CHSC6109  Phalaris caroliniana A. R. Jaegel 1968-4-19 143 Butte 2 mi s of Cherokee in field (3/4 mi w of 1st gate at top of Table Mountain, gate about 1 mi from Oregon City cutoff on Cherokee Rd.). Comment
  CAS-BOT-BC259047  Phalaris lemmonii A. A. Heller 1902-5-3 5447 Butte Near Nelson Comment
  CHSC49565  Phalaris paradoxa Vernon Oswald 1988-4-18 3272 Butte Harter's Cherokee Ranch located on the w side of Hwy 99 between Hwy 149 and Dry Creek. On the edge of a rice field in the southeast part of the ranch. 45 Comment
  CAS-BOT-BC128859  Philadelphus John Thomas Howell 1962-6-16 37607 Butte Feather River West Branch sw. of Nelson Bar 304 Comment
  CHSC39536  Philadelphus lewisii Lowell Ahart 1983-6-21 4080 Butte Found growing on dry rocky soil along Bloomer Hill Road, about 3/4 mile west of the Oroville-Quincy Highway, about 15 miles north-east of Oroville. Label says Section 6. 425 Comment
  RSA0057770  Philadelphus lewisii C. C. Bruce 1897-05 1785 Butte Little Chico. Comment
  CAS-BOT-BC250862  Phleum pratense H. F. Copeland 1920-8-29 144 Butte Jonesville Meadow 1219 Comment
  CAS-BOT-BC250868  Phleum pratense Lowell Ahart 1988-6-23 6061 Butte Along the east side of the Wyandotte Miners Ranch Road, about 1/2 mile south of Olive Highway, about 5 miles south-east of Oroville 259 Comment
  SEINET10934986  Phleum pratense Mary Susan Taylor 1982-6-24 Taylor 4728 Butte T23N R5E nw/se sec 30. Pulga SW quad. Around large landing site on saddle of ridge se of Flea Mt, n of Pulga, ca. 5 air mi e of Magalia. 3600 ft. 1097 Comment
  UC880345  Phlox gracilis A. A. Heller 1917-4-15 12677 Butte 10 mi n Chico 64 Comment
  RSA3434  Phlox speciosa subsp. occidentalis Helen M. Edwards 1917-06 s.n. Butte De Sabla. Comment
  POM299255  Phlox speciosa subsp. occidentalis C. R. Quick 1941-6-8 41 -14 Butte Big Bar Mt. Meadow Comment
  SD1138  Phoradendron juniperinum E. B. Copeland 1931-7-28 627 Butte Jonesville 1500 Comment
  CHSC31220  Phoradendron villosum M. S. Taylor; J. D. Jokerst 1979-10-13 2256 Butte On Jordan Hill Rd, ca. 4.8 mi n of its jct with Concow Rd, ca. 2 mi e of Paradise. 609 Comment
  SEINET10547000  Phyla nodiflora var. rosea Lowell Ahart 1991-9-14 Ahart 6725 Butte On the south end of the dam, at the large reservoir, Joie Osgood Ranch, about 2 miles east of Honcut. Valley Grassland. T17N R4E S/C/S14. 46 Comment
  SEINET10931448  Physalis acutifolia Mary Susan Taylor 1977-10-10 Taylor 1507 Butte In dried up weed field on N side of Crauch Road, at its junction with Lone Pine Road, ca. 4 mi S of Chico. 46 Comment
  CHSC39546  Pilularia americana Lowell Ahart 1983-6-6 4032 Butte Peter Ahart Ranch, about 2 miles north and 1/4 mile east of Honcut. 50 Comment
  CHSC46176  Pilularia americana Lowell Ahart 1978-5-15 1720 Butte Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC80511  Pilularia americana Lowell Ahart 2001-4-15 8727 Butte Southeast of the large pump, on the south side of Evans-Reimer Road, about 1 mile east of Pennington Road, Gray Lodge Waterfowl Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  NY61952  Pinus monticola E. B. Copeland 1929-7-17 331 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
  CHSC30725  Pinus ponderosa M. S. Taylor 1980-5-27 2702 Butte On Big Bald Rock, granitic dome, ca 3 mi e of Lake Madrone. 997 Comment
  UC813301  Pinus ponderosa A. A. Heller 1917-7-26 12850 Butte Butte Meadows 1280 Comment
  CHSC61525  Piperia transversa Lowell Ahart 1993-6-16 6961 Butte South-west of the intersection of Black Bart Road and Forbestown Road, about 3 1/2 (air Miles south-west of Forbestown. 609 Comment
  CHSC88246  Piperia transversa Lowell Ahart 2004-7-11 11246 Butte Along the dirt road, on the southeast edge of Paradise Lake, about 3/4 mile northeast of the picnic area, about 1 mile northeast of Paradise Dam, about 4 miles (air) southwest of Stirling City. 814 Comment
  SEINET10529819  Pityrogramma triangularis Mary Susan Taylor 1981-3-24 Taylor 3439 Butte Two mile stretch along both sides of Feather River Hwy (70), just ne of Pulga to Cresta Powerhouse, ca. 20 mi ne of Oroville; granite gravels & soil; ca. 1700 ft. T23N R5E Pulga quad. 518 Comment
  SEINET10529834  Pityrogramma triangularis Mary Susan Taylor 1974-4-30 Taylor 199 Butte Along Cohasset Road, NE of Chico. Comment
  SEINET10898354  Plagiobothrys Mary Susan Taylor 1981-5-7 Taylor 3640 Butte T20N R6E se/se sec 25, Clipper Mills quad. Along spur rd, ca. 0.5 mi SE of its jct with Fields Ridge Rd-20N24.6, ca. 3 air mi S of Feather Falls community. Yellow Pine Forest; 3200 ft. 975 Comment
  UCD120768  Plagiobothrys austiniae Robert E. Preston 1990-3-11 594 Butte Chico, N end of Cactus Ave. 76 Comment
  CHSC165  Plagiobothrys canescens S. Ptomey 1956-6-4 Butte Richardson Springs road. 67 Comment
  UC726654  Plagiobothrys fulvus A. A. Heller 1938-4-23 15044 Butte on Feather River Hwy 1 1/2 mi from Oroville Comment
  SEINET12275924  Plagiobothrys fulvus Unknown s.n. Butte no further locality Comment
  CHSC29052  Plagiobothrys fulvus var. campestris R. A. Schlising 1980-4-20 3572 Butte Between Singer Creek and Cana/Pine Creek Road. Comment
  CHSC29980  Plagiobothrys glyptocarpus Lowell Ahart 1980-5-12 2248 Butte Peter Ahart Ranch, ca 1 mi N and 2.25 mi E of Honcut; in small wash in pasture. 50 Comment
  CDA34720  Plagiobothrys glyptocarpus var. glyptocarpus L. Ahart 2010-6-9 16785 Butte About 100 yards west of the fence, about 1/2 mile south of the improved parking area and Cherokee Road, North Table Mountain, about 5 1/2 miles (air) northeast of Oroville. Comment
  POM71620  Plagiobothrys glyptocarpus var. glyptocarpus C. C. Bruce 1898-05 1928 Butte [No locality information provided] Comment
  UC1442671  Plagiobothrys glyptocarpus var. modestus Lowell Ahart 1978-4-27 Butte Peter Ahart Ranch Honcut 50 Comment
  UC625523  Plagiobothrys greenei Frank W. Gould 1938-4-23 310 Butte two mi n Chico 60 Comment
  SEINET12249492  Plagiobothrys greenei Unknown 1977-1 1297 Butte Peter Ahart Ranch, Honcut 50 Comment
  CHSC58891  Plagiobothrys hispidulus Lowell Ahart 1992-7-21 6822 Butte On a gravel bar along Coon Hollow Creek, about 2 1/4 (air) miles north-east of Philbrook Reservoir. 1706 Comment
  CHSC33133  Plagiobothrys leptocladus J. D. Jokerst 1980-5-1 693 Butte Ahart Ranch ca 1/2 mi N of the ranchhouse, S edge of Butte County. Comment
  CHSC52336  Plagiobothrys leptocladus J. D. Jokerst; V. Oswald 1985-4-14 2232 Butte Top of North Table Mountain north of Cherokee Rd near the easedge of the mesa. 396 Comment
  CHSC29278  Plagiobothrys nothofulvus R. A. Schlising 1980-4-7 3558 Butte 2.8 mi E of Bangor Highway on Swedes Flat Road. 365 Comment
  UCR187084  Plagiobothrys nothofulvus Anna M. Hurlbutt, C. R. Weeks 2007-4-26 008 Butte Sierra Nevada Mtns., Paradise, < 0.25 mi N of Skyway, c. 5 mi E of Oroville Reservoir, bluffs above Hamlin Canyon, formed by Butte Cr. and Little Butte Cr. 488 Comment
  CHSC35057  Plagiobothrys scriptus Paula Minton 1981-4-1 Butte Wurlitzer Ranch, northwesternmost Butte County. Off Cana-Pine Creek Road. 57 Comment
  CHSC46770  Plagiobothrys shastensis Lowell Ahart 1980-4-30 2126 Butte About 1 mile east of the Bangor Oroville Highway along Swedes Flat Road. 295 Comment
  CHSC117424  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2016-5-31 20904 Butte About 1/8 mile east of Palermo Honcut Highway, Peter Ahart Ranch, about 2 1/4 miles north and 1/8 mile east of Honcut, about 12 miles (air) south of Oroville. 29 Comment
  CHSC38278  Plagiobothrys stipitatus var. micranthus Vernon Oswald 1983-4-20 356 Butte Upper Bidwell Park, Chico, near the s-w corner of the Omicron Enclosure (near the n boundary of the park ca. 500 ft e of the junction of Upper Park Rd. and Wildwood Ave.). Along the edge of vernal pond. 85 Comment
  CHSC54380  Plagiobothrys stipitatus var. micranthus M. Bailey 1991-4-19 565 Butte At margin of seasonal drainage ca 200 ft e of Williams Road and ca 1/4 mi n of Pentz Road; near Wallis Ponds. 85 Comment
  UCD80157  Plagiobothrys stipitatus var. micranthus CNPS SN Foothill Team 2005-4-13 SNFN 0080 b Butte Private Rock Ranch (horse ranch) owned by Chris and Maria Rock, near the SE corner of the south pasture, approximately 25 m from the south fence. 92 Comment
  UC726653  Plagiobothrys tenellus A. A. Heller 1938-4-14 15037 Butte roadside bank between Pentz and Cherokee Comment
  CHSC39622  Plantago bigelovii Lowell Ahart 1983-4-10 3919 Butte South of a large wash, 1/10 mile east of the large barn, about 1 1/4 miles north-east of Hwy 99 and Pentz Road. 65 Comment
  RSA325025  Plantago bigelovii subsp. bigelovii L. Ahart 1984-4-24 4584 Butte Peter Ahart Ranch, ca. 2.5 mi NE of Honcut, ca. 12 mi S of Oroville. 50 Comment
  CHSC38581  Plantago elongata Vernon Oswald 1983-3-14 174 Butte Upper Bidwell Park, Chico, along the hiking trail on the north slope ca. 1600 ft w of the power lines. 195 Comment
  CHSC54364  Plantago elongata M. Bailey 1991-4-19 566 Butte Butte College campus, ca 300 ft e of Williams Road, on western side of Well #3, ca 1/4 mi n of Pentz Road. 85 Comment
  CHSC116641  Plantago erecta Lowell Ahart 2016-4-15 20752 Butte On both sides of Swedes Flat Road, about 1/2 mile southwest of Dutch Ravine, about 8 miles (air) southeast of Oroville. 384 Comment
  CHSC1220  Plantago erecta F. Roos 1930-3-28 Butte Paradise. 548 Comment
  CHSC52101  Plantago erecta William Nielson 1984-3-28 16 Butte 5 m s of Skyway, ca. 2 km w of jct with Hwy 99. 95 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
  SBBG128463  Plantago erecta L. Ahart 2012-4-9 17851 Butte N side of S Rim Trail, W of the power lines, Upper Bidwell Park, ca. 1 mi NE of Chico 143 Comment
  UCD124483  Plantago erecta M. S. Taylor 1981-4-21 3549 Butte south side of Concow Road, on ridge, ca. 0.5 mile south of its junction with Ponderosa Way (rim road), ca. 2 miles north of Lake Concow, ca. 20 air miles northeast of Oroville. 853 Comment
  SEINET10836899  Plantago hookeriana var. californica Mary Susan Taylor 1975-4-25 Taylor 500 Butte Ca. 1/4 to 1/2 mi E of Cohasset Hwy, along dirt rd leading up onto ridge, ca. 10 mi NE of Chico. Soil wet red clay. Mixed Chaparral. Comment
  CHSC42549  Plantago major Lowell Ahart 1987-5-6 5532 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC88176  Plantago major Lowell Ahart 2004-7-23 11302 Butte In a small meadow, on the west side of the road, north of the West Branch Campground, south of the Bridge across the West Branch of the Feather River, about 1 1/2 miles (air) west of Philbrook Reservoir Dam, about 3 3/4 miles (air) southeast of Butte Meadows. 1456 Comment
  CHSC30676  Platanthera leucostachys M. S. Taylor; R. S. Schlising 1980-7-6 3068 Butte N side of Old Humboldt Rd, ca. 0.8 mi ne of Cherry Creek Campground. 1463 Comment
  CHSC94251  Platanthera sparsiflora Lowell Ahart 2006-7-16 12989 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
  OBI69230  Platanus racemosa Kari Fisher, Bill Fisher 2000-11-10 52 Butte Bidwell Park, along path by 5 mi Rec area 82 Comment
  SEINET12102784  Platystemon californicus Unknown 5 s.n. Butte Chico Comment
  CHSC11338  Plectritis ciliosa subsp. ciliosa Lowell Ahart 1970-4-4 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC32588  Plectritis ciliosa subsp. insignis J. D. Jokerst; Jeri Donovan 1981-3-21 1260 Butte Ca. 0.5 mi N of Horseshoe Lake (ca 3 mi E of Chico in Bidwell Park). Comment
  CHSC29232  Plectritis congesta M. S. Taylor 1980-4-1 2428 Butte On bluffs above Covered Bridge, ca. 100 ft s of Butte Creek, ca. 6 mi e of Chico 182 Comment
  CHSC1993  Plectritis macrocera M. Robbie 1930-3-18 Butte Richardson Springs road. 137 Comment
  CHSC1994  Plectritis macrocera R. M. Staley 1952-7-5 Butte Honey Run. 304 Comment
  SEINET10449168  Pleuricospora fimbriolata Mary Susan Taylor 1980-8-2 Taylor 3210 Butte T27N R5E center sec 32, Jonesville quad. Humboldt Peak, N tip of the county. 2155 Comment
  CAS-BOT-BC244403  Poa annua John Thomas Howell 1961-9-22 36719 Butte Bank of Feather River, Oroville 53 Comment
  CHSC100964  Poa annua Lowell Ahart; Josephine Guardino, Steve Green 2009-2-20 15491 Butte Near the north side of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  SEINET10822489  Poa annua Mary Susan Taylor 1975-4-6 Taylor 431 Butte Chico. NE corner of Arcadian and West 4th Avenue. 52 Comment
  CDA34180  Poa bulbosa L. Ahart 2009-4-22 15598 Butte South side of Guardian s Trail, about 50 yards west of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road. Approximately, 10 miles northeast of Chico. Comment
  CHSC39393  Poa compressa L. Ahart 1983-9-17 4438 Butte Ca. 1/4 mi se of Stirling City. Bottom of a wash. 1100 Comment
  CHSC78365  Poa compressa Lowell Ahart 2000-6-29 8540 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
  CHSC64263  Poa pratensis S. C. Morey 1983-8-1 651 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  UCD91924  Poa pratensis L. Y. Leonard 1919-6-1 x 3090 Butte Chico. Comment
  CHSC111144  Poa pratensis subsp. pratensis Lowell Ahart 2012-6-14 18188 Butte On the south side of the path, edge of the lawn, south side of CARD Community Center, Lower Bidwell Park, Chico. 62 Comment
  CHSC47629  Poa secunda subsp. secunda Lowell Ahart 1977-6-16 1425 Butte On the banks 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. 54 Comment
  CAS-BOT-BC244159  Poa sierrae Lowell Ahart 1980-5-29 2355 Butte 5 miles NE of Mountain House 1100 Comment
  JEPS117708  Poa tenerrima Lowell Ahart 2010-5-14 16662 Butte Disc Golf Area, about 200 yards west of the entrance to the Disc Golf Area, west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 350 Comment
  UCD125402  Pogogyne douglasii E. M. Johnston 1915-1 W- 1475 Butte Biggs. Comment
  UCD125427  Pogogyne zizyphoroides Paula J. Minton 1980-5-14 1 Butte 1 mile east of Chico, around 100 ft on north side of the Skyway. 70 Comment
  CHSC49836  Polycarpon tetraphyllum Vernon H. Oswald 1990-4-2 4142 Butte Bedrock Park on the e side of the Feather River in Oroville. Margin of a slough. 42 Comment
  CHSC58938  Polygala cornuta Lowell Ahart 1992-8-2 6913 Butte East of the intersection, about 1/2 mile north of Flea Valley, about 4 1/2 (air) miles north-east of Concow Reservoir. 1158 Comment
  UC726743  Polygala cornuta var. cornuta A. A. Heller 1941-6-22 16180 Butte Cohasset Comment
  CDA31969  Polygonum arenastrum L. Ahart 2009-6-12 15846 Butte At the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CHSC113440  Polygonum aviculare Lowell Ahart 2014-7-7 19563 Butte About 5 yards east of the Skyway, about one-mile north of Stirling City. 1142 Comment
  CHSC103699  Polygonum bidwelliae Lowell Ahart 2010-5-14 16667 Butte Open rocky flats, near south park fence, Disc Golf Area, about 300 yards west of the entrance to the Disc Golf Area, west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 358 Comment
  JEPS117281  Polygonum bidwelliae Lowell Ahart 2010-6-1 16763 Butte On dry poor bare soil, on the south side of Guardians Trail, about 1/8 mile west of the power lines, Upper Bidwell Park, about 1 1/2 miles (air) east of Chico 120 Comment
  CAS-BOT-BC109150  Polygonum bolanderi Lowell Ahart 1980-7-20 2480 Butte At Little Bald Rock. 1100 Comment
  CHSC28730  Polygonum californicum Robert Schlising 1979-10-4 3493 Butte Old archery range in Bidwell Park, Chico, just e of lake. Comment
  CHSC45100  Polygonum douglasii subsp. douglasii Lowell Ahart 1988-9-4 6182 Butte On the bank of Big Kimshew Creek, the creek crosses a large meadow, about 1 air mile north-east of Jones Meadow. 1920 Comment
  CHSC50555  Polygonum douglasii subsp. johnstonii Vernon Oswald; Lowell Ahart 1990-7-5 4350 Butte Headwaters of Willow Creek, 0.3 mi (odometer) west of Humbug Rd along a logging road just south of Cold Springs (near Humbug summit), ca. 4 mi east of Jonesville. 1950 Comment
  JEPS113314  Polygonum douglasii subsp. spergulariiforme L. P. Janeway 2006-6-25 8694 Butte Northern High Sierra Nevada. West side of Coutolenc Road about 150 m north of Skyway; at Magalia Serpentine. Comment
  CDA13839  Polygonum lapathifolium G. F. Hrusa, T. D. Wilfred 1996-9-5 13567 Butte Butte Basin; Immed. W of Butte Creek at Western Canal District Dam. Comment
  JEPS96004  Polygonum lapathifolium Vernon H. Oswald and Lowell Ahart 1996-5-27 7665 Butte U.S. Fish and Wildlife Service Parcel between 7 Mile Lane and Sacramento River (seasonal marsh on s side of Tract 1.1, Sanctuary II); Sacramento River National Wildlife Refuge, Llano Seco Unit 33 Comment
  CHSC113482  Polygonum minimum Lowell Ahart 2014-7-13 19654 Butte About 100 yards south of Philbrook Road, from the large meadow go west to the snow lake, go on about 100 yards to the open logged area, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC46011  Polygonum parryi Lowell Ahart 1984-7-19 4730 Butte Along the edge of the dirt road where there is a seep along the road gutter, about 1 1/2 miles south-east of Bald Mountain, 3/4 mile west of Oak Point, about 4 miles northeast of Stirling City. 1371 Comment
  UC1509633  Polygonum persicaria L. Ahart 1982-10-6 3845 Butte ca 3 mi ne Hocut; Peter Ahart Ranch, North Honcut Creek 50 Comment
  UC1586574  Polygonum phytolaccifolium Lowell Ahart 1991-8-25 6709 Butte along creek about 2 mi nw Four Trees (about 2 mi w of the Oroville-Quincy Hwy, about 2 mi e of Coyote Gap); Wildcat Creek 1219 Comment
  UC392225  Polygonum phytolaccifolium E. B. Copeland July 1929 Butte Jonesville; along creek and near springs Comment
  RSA0035341  Polygonum punctatum Lowell Ahart 2012-9-28 18466 Butte Gravel bar in the middle of Big Chico Creek, about 30 yards east of the freeway, Lower Bidwell Park, Chico. 65 Comment
  CAS-BOT-BC71862  Polypodium californicum Rod O'Sullivan 1977-2-12 4 Butte Little Chico Creek Canyon, 9.2 mi NE of Chico on Hwy 99 and 1 mi E of Tenmile House, Paradise Quadrangle, 15' 268 Comment
  SEINET10530408  Polypodium californicum Mary Susan Taylor 1981-5-7 Taylor 3633 Butte T20N R6E ne sec 33, Forbestown quad. N side of Ponderosa Way, N of the Sucker Creek bridge, ca. 4 air mi SW of Feather Falls community. Yellow Pine Forest; 1200 ft. 366 Comment
  CHSC29018  Polypodium calirhiza M. S. Taylor; J. D. Jokerst, L. Ahart 1980-4-4 2430 Butte Ca. 10 ft s of Swedes Flat Rd, at jct with Rocky Honcut Creek, ca. 2 mi e of OrovilleBangor Hwy, ca. 10 mi se of Oroville. 365 Comment
  CHSC30737  Polypodium calirhiza M. S. Taylor 1980-5-27 2651 Butte Near parking lot, Big Bald Rock, ca. 3 mi e of Lake Madrone. 975 Comment
  CHSC32628  Polypodium calirhiza M. S. Taylor; L. Hanson 1981-4-2 3469 Butte Se side of Forbestown Reservoir, s side of rd 20N29, ca. 3 air mi n of Woodleaf. 548 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
  JEPS107676  Polypodium calirhiza Lowell Ahart 2005-1-20 11472 Butte On the west side of McCabe Creek, above the high water line of Lake Oroville, about 1/4 mile south of the siphon, about 3 miles (air) northeast of Hurleton, about 7 miles (air) east of Oroville Dam 304 Comment
  CHSC102416  Polypogon australis Lowell Ahart 2009-6-19 15927 Butte On wet soil, drainage in meadow, about 30 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
  CHSC50392  Polypogon australis Vernon Oswald 1990-6-2 4279 Butte Oroville Wildlife Area on the northwest side of the Feather River, just upstream from the outlet of Thermalito Afterbay. On the bank of the river. 33 Comment
  CHSC6127  Polypogon australis E. Parreno 1968-5-12 96 Butte Alligator Hole, creekbank of Chico Creek in Upper Bidwell Park, Chico. Comment
  CHSC50707  Polypogon interruptus Lowell Ahart 1990-5-25 6489 Butte On the bottom of a 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. 259 Comment
  SEINET10658297  Polypogon maritimus Henegar 1969-5-9 HENEGAR 54 Butte 4 m n of Highway 162 on road Z, found along road side. Comment
  CDA34163  Polypogon monspeliensis L. Ahart 2009-7-9 16012 Butte East side of Ten Mile House Road, Upper Bidwell Park, about 0.75 miles (air), west of Highway 32. Approximately, 10 miles northeast of Chico. Comment
  CHSC37138  Polypogon monspeliensis L. Ahart 1982-7-18 3681 Butte Along sides and bottom of wash. Peter Ahart Ranch, ca. 1 1/2 mi n and 1 1/2 mi e of Honcut. 50 Comment
  CHSC40461  Polypogon monspeliensis Lowell Ahart 1985-5-15 4973 Butte West of Lunt Road, about 1/2 mile north of the intersection of Lunt Road and Highway 70, north of Yankee Hill. 502 Comment
  UCD91344  Polypogon monspeliensis E. M. Johnston 1915-1 W- 135 J Butte Biggs. Comment
  SEINET10530119  Polystichum imbricans Mary Susan Taylor 1978-7-21 Taylor 1799 Butte Vicinity of Lake Madrone, at Oroville- Quincy Hwy turnoff, ca. 10 mi NE of Oroville; Yellow Pine Forest. 610 Comment
  JEPS106114  Polystichum imbricans subsp. curtum Lowell Ahart 2004-6-22 11118 Butte On the east side of Doe Mill Road, about 1/4 mile southeast of the bridge across Butte Creek, about 2 1/4 miles (air) southeast of Forest Ranch, about 5 miles (air) west of Stirling City 628 Comment
  CAS-BOT-BC72298  Polystichum imbricans subsp. imbricans M. S. Taylor 1979-9-28 2202 Butte Butte county line at Hwy 70, between boundary and Arch Rock Tunnel 487 Comment
  CHSC87877  Polystichum imbricans subsp. imbricans Lowell Ahart 2004-6-22 11117 Butte On the east side of Doe Mill Road, about 1/4 mile southeast of the bridge across Butte Creek, about 2 1/4 miles (air) southeast of Forest Ranch, about 5 miles (air) west of Stirling City. 628 Comment
  CAS-BOT-BC72295  Polystichum imbricans subsp. imbricans Lowell Ahart 1984-5-28 4648 Butte below a dirt road about 1 1/4 miles northeast of the West Branch Bridge, about 2 miles south of Old Yankee Hill 450 Comment
  CAS-BOT-BC72367  Polystichum kruckebergii M. P. Hayes; R. Schlising 1978-6-24 3292 Butte Extreme ne Butte County, just below summit of Humboldt Peak above Jonesville 2133 Comment
  CHSC44151  Polystichum lemmonii V. Oswald; L. Ahart 1988-7-29 3655 Butte Ca. 5 mi (air) se of Jonesville on the ridge running eastwards from the peak of Snow Mtn. 2097 Comment
  CHSC96906  Polystichum munitum Lowell Ahart 2007-6-12 14065 Butte About 70 yards northeast of the parking area at Big Bald Rock, about 14 miles (air) northeast of Oroville. 1001 Comment
  CAS-BOT-BC102691  Populus tremuloides A. A. Heller 1928-7-25 14699 Butte Along the forest service trail between Jonesville and Butte Creek House Comment
  SEINET10539205  Populus trichocarpa Mary Susan Taylor 1975-8-31 Taylor 896 Butte Riparian Woodland, on Ernies Island in Butte Creek, ca. 50 ft S of Humboldt Rd, ca. 0.5 mi E of Butte Meadows. 1341 Comment
  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
  SEINET10965500  Portulaca oleracea Mary Susan Taylor 1977-10-10 Taylor 1506 Butte In dried up weed field on N side of Crauch Road, at its junction with Lone Pine Road, ca. 4 mi S of Chico. 46 Comment
  CHSC28622  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
  CHSC43278  Potamogeton crispus Lowell Ahart 1987-9-4 5873 Butte In drain ditch, along the Biggs Princeton Highway, under P.G. and E. power lines, about 1 mile west of Biggs. 28 Comment
  CHSC49685  Potamogeton crispus Vernon Oswald 1987-8-2 3173 Butte Mouth of the slough leading into the boat ramp just upstream from the Washout (Chico Landing site) on the Sacramento River. 36 Comment
  CHSC55813  Potamogeton diversifolius Vernon H. Oswald; Lowell Ahart 1991-8-28 4856 Butte Impoundment just south of the Clay Pit Area of the Oroville Wildlife Area, on the east side of Larkin Rd, ca. 2 miles south of Hwy 162, Thermalito. In a pond. 39 Comment
  CHSC38890  Potamogeton foliosus var. foliosus Vernon Oswald 1983-6-7 651 Butte Upper Bidwell Park, Chico, ca. 0.1 mi e of the end of the pavement on Upper Park Rd. Along the edge of Chico Creek. 91 Comment
  CHSC80920  Potamogeton illinoensis Lowell Ahart 2001-7-6 8882 Butte Small pond, west of a large pond, large overflow area on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ord Bend, about 12 miles (air) southwest of Chico. 32 Comment
  JEPS102326  Potamogeton illinoensis Lowell Ahart 2001-6-3 8750 Butte about 1 mi N and 2 3/4 mi E of Honcut (Peter Ahart Ranch, W side of North Honcut Creek) 38 Comment
  CAS-BOT-BC453700  Potamogeton illinoensis Lowell Ahart 1977-9-8 s.n. Butte Peter Ahart Ranch, Honcut. In North Honcut Creek. 50 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
  POM218973  Potamogeton pusillus E. B. Copeland 1931-7-20 604 Butte Jonesville, Butte County. 1650 Comment
  CHSC46588  Potentilla drummondii V. Oswald; L. Ahart 1989-7-12 3855 Butte Meadow near the headwaters of Big Kimshew Creek, ca. 2 mi (air) sw of Lotts Lake, ca. 3 mi (air) se of Philbrook Reservoir. 1901 Comment
  SEINET10871296  Potentilla glandulosa Mary Susan Taylor 1978-7-18 Taylor 1680 Butte On W side of Hwy 32 on edge of Yellow Pine Forest, in dry open area, ca. 1/4 mi N of Forest Ranch. 718 Comment
  SEINET10483126  Potentilla glandulosa subsp. reflexa Mary Susan Taylor 1980-5-27 Taylor 2648 Butte T21N R6E sc sec 30. Big Bend quad. On trail (around parking lot) to Big Bald Rock, ca. 3 mi E of Lake Madrone; Yellow Pine Forest, granitic soils. 998 Comment
  CHSC64213  Potentilla gracilis var. fastigiata S. C. Morey 1983-8-1 656 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  CHSC113324  Potentilla rivalis Lowell Ahart 2014-5-21 19527 Butte South bank of river, where Sucker Creek flows into the South Fork of the Feather River, below the high water line of Lake Oroville, about 1/4 mile west of the Ponderosa Dam. 249 Comment
  CHSC29397  Poterium sanguisorba R. A. Schlising; R. Banchero 1980-6-17 3738 Butte N of Magalia, along Coutelenc Road, 0.7 mi S of jct with Skyway at Lovelock. In meadow. 902 Comment
  CHSC31761  Proboscidea lutea L. Ahart 1973-7-19 262 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CAS-BOT-BC508632  Prosartes hookeri Lowell Ahart 1982-9-13 3810 Butte Near Pinkard Creek about 1/8 mile north of the Lost Creek Res. Dam about 2 and 1/8 miles north-west of Straberry Valley 1100 Comment
  CHSC52060  Prunella vulgaris var. lanceolata B. Castro; L. P. Janeway, R. A. Schlising 1988-7-11 270 A Butte On edge of Big Kimshew Ck in Crane Valley. 1569 Comment
  JEPS110171  Prunus ilicifolia subsp. ilicifolia Lowell Ahart, Mike G. Womack 2006-8-29 13241 Butte near pump 24, about 1/4 mile southwest of Pennington Road, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area) 21 Comment
  CHSC27231  Prunus serrulata P. Moyer 1972-3-18 148 Butte CSUC Campus. Front lawn Sociology Bldg. 60 Comment
  CHSC97356  Prunus virginiana var. demissa Paul Maslin 2005-5-5 51 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). UTM: 106100198E 4411262N. 268 Comment
  JEPS124134  Pseudognaphalium beneolens Lowell Ahart 2015-11-7 20624 Butte About 1/8 mile south of the end of Alternate 40, strand of Lake Oroville, Dark Canyon, about 4 miles (air) south of Highway 70, about 8 miles (air) southeast of Paradise. Comment
  JEPS122208  Pseudognaphalium luteoalbum Lowell Ahart 2014-4-25 19395 Butte On the west side of Richvale South Highway, south of the intersection of Richvale West Road and Richvale South Highway, Richvale. Comment
  RSA0118932  Pseudognaphalium luteoalbum Lowell Ahart 2013-11-13 19229 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
  CHSC39276  Pseudognaphalium stramineum Lowell Ahart 1983-7-29 4226 Butte Slide area along the dirt road, about 1/4 mile west of Milsap Bar. about 25 miles north-east of Oroville. 500 Comment
  CHSC66287  Pseudognaphalium stramineum Lowell Ahart 1996-6-25 7685 Butte In a field, Peter Ahart Ranch, about 1 1/4 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CAS-BOT-BC357589  Pseudognaphalium stramineum Lowell Ahart 1980-5-4 2184 Butte Thermalito 65 Comment
  CHSC28612  Pseudognaphalium thermale M. S. Taylor 1979-8-4 2176 Butte On Hwy 70, ca. 1 mi n of Cresta Powerhouse, ca. 30 mi n of Oroville. 487 Comment
  CHSC32753  Pseudognaphalium thermale J. D. Jokerst 1981-4-3 1283 Butte Near the top of the S side of Butte Cr. Canyon. 365 Comment
  CHSC41873  Pseudognaphalium thermale Lowell Ahart 1986-10-16 5404 Butte About 1 mile south-west of the Ponderosa Dam, about 3 miles north-west of Forbestown. 457 Comment
  CAS-BOT-BC80090  Pseudotsuga menziesii John Thomas Howell 1962-6-15 37434 Butte Magalia 731 Comment
  CHSC19925  Pseudotsuga menziesii var. menziesii M. S. Taylor 1975-2-23 388 Butte Ca. 3 mi e of Hwy 32, ca. 5 mi n of Forest Ranch. Comment
  CHSC25471  Pseudotsuga menziesii var. menziesii Marc Hayes; Warner 1977-9-11 66 Butte Along Hwy 32 above Forest Ranch, exactly 21.4 mi from Hwy 99 overpass in Chico. 701 Comment
  CHSC103718  Psilocarphus brevissimus var. brevissimus Lowell Ahart 2010-5-14 16649 Butte On the west side of the old Humboldt Road, Disc Golf Area, about 150 yards west of the entrance to the Disc Golf Area, about 40 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 395 Comment
  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
  CAS-BOT-BC361827  Psilocarphus oregonus A. A. Heller 1915-5-28 11913 Butte Near Cohasset Comment
  CHSC25482  Psilocarphus tenellus var. globiferus L. Ahart 1977-4-15 1300 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC46282  Psilocarphus tenellus var. tenellus Vernon Oswald 1989-5-16 3772 Butte Ponderosa way on Musty Buck Ridge between Cohasset and Big Chico Creek. 762 Comment
  CHSC82439  Psilocarphus tenellus var. tenellus Lowell Ahart 2002-5-7 9611 Butte High banks of a pond, at the beginning of a southeast branch of Schirmer Ravine, about 50 yards east of the pond on the east side of Cherokee Road, North Table Mountain, about 4 miles (air) north of Oroville. 228 Comment
  SEINET10906976  Psoralea macrostachya Mary Susan Taylor, M. Hayes 1977-6-27 Taylor 1394 Butte Butte College Campus, ca. 15 mi SE of Chico via Hwy 99 & Pentz Rd. Comment
  POM86960  Ptelea angustifolia C. C. Bruce 1897-05 1803 Butte Forest- Ranch. Comment
  UC109313  Ptelea crenulata R. M. Austin May 1883 263 Butte Comment
  UCD117075  Ptelea crenulata J. P. Smith; J. O. Sawyer 1973-4-14 6063 Butte Rock Road 1 mile W of Cohasset Road near Chico. Comment
  SEINET10530100  Pteridium aquilinum var. pubescens Mary Susan Taylor 1980-5-27 Taylor 2649 Butte T21N R6E sc sec 30. Big Bend quad. On trail (around parking lot) to Big Bald Rock, ca. 3 mi E of Lake Madrone; Yellow Pine Forest, granitic soils. 998 Comment
  CDA13287  Pterospora andromedea G. F. Hrusa, T. D. Wilfred 1996-7-9 13135 Butte Plumas National Forest; E of Jordan Creek near headwaters, S of Hwy 162 near Roger's Cow Camp. Comment
  CHSC35075  Pterospora andromedea R. A. Schlising 1980-7-25 3919 Butte Along Humboldt Road, 1.9 mi NE of jct with Hwy 32 at Lomo. 1356 Comment
  CHSC38621  Pterostegia drymarioides Vernon Oswald 1983-4-9 302 Butte Upper Bidwell Park, Chico, on the north rim ca. 1.4 mi e of the power lines. 350 Comment
  CHSC27182  Pyracantha crenulata M. MacArthur 1968-6-12 151 Butte NW side of LS bld. at the SW corner, Chico State College campus. 60 Comment
  CHSC48675  Pyrola aphylla Vernon Oswald 1987-7-13 3106 Butte Near Jones Creek, ca. .25 mi n of the road connecting Humboldt and Humbug roads, ca. 1.25 mi (air) ne of Jonesville. 1645 Comment
  CHSC71637  Pyrola dentata Vernon H. Oswald 1998-8-11 9461 Butte USFS 25N95 to Upper Wildcat Creek 0.3 mi north of Four Trees-Coyote Gap Rd. 1463 Comment
  JEPS93940  Pyrola dentata Vernon H. Oswald and Lowell Ahart 1998-8-11 9461 Butte USFS 25N95 to Upper Wildcat Creek 0.3 mi north of Four Trees-Coyote Gap Road 1463 Comment
  SEINET10874403  Pyrola picta subsp. integra Mary Susan Taylor 1980-8-2 Taylor 3215 Butte T27N R5E center sec 32, Jonesville quad. Humboldt Peak, N tip of the county. 2155 Comment
  CHSC27200  Pyrus P. Moyer 1971-2-1 84 Butte CSUC Campus. E face of Bus.-Soc. Sci. Bldg. 60 Comment
  JEPS120041  Pyrus Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-17 18073 Butte On the west side of the horse trail, about 50 feet south of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  CAS-BOT-BC105030  Quercus X morehus Lowell Ahart 1976-7-15 s.n. Butte Near edge of North Honcut Creek, 2 miles N and 3 miles E of Honcut 200 Comment
  CAS-BOT-BC86632  Quercus douglasii A. A. Heller 1913-10-1 11145 Butte Hills near Big Chico creek, E of Chico 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
  CHSC78081  Quercus douglasii April Glover 1997-4-4 30 Butte East of Chico between Big Chico Creek Canyon rim and Highway 32 with intermittent stream Mediterranean climate. 390 Comment
  CAS-BOT-BC79604  Quercus durata Lowell Ahart 1987-5-11 5618 Butte S of the Forbestown Ditch, about 2 1/2 mi NE of Forbestown 868 Comment
  RSA263855  Quercus garryana J. T. Howell 1955-6-15 30496 Butte 6 miles from Paradise on road to Pentz. 427 Comment
  CDA13879  Quercus garryana var. semota G. F. Hrusa, T. D. Wilfred 1997-5-7 13738 Butte Sierra Nevada; Slopes facing Little Butte Creek above Magalia Reservioir, N of Magalia. Comment
  CAS-BOT-BC105145  Quercus kelloggii Lowell Ahart 1984-7-19 903 - 4735 Butte About 1.5 miles SE of Bald Mountain, 3/4 mile W of Oak Point, about 4 miles NE of Stirling City 1500 Comment
  JEPS95964  Quercus kelloggii Lowell Ahart 1999-6-12 8084 Butte North Table Mountain; about one mile (air) northwest of the entrance gates along the west side of Cherokee Road; about 7 miles (air) north of Oroville 365 Comment
  CAS-BOT-BC61581  Quercus lobata Alice Eastwood 1913-6-18 s.n. Butte Hooker Oak, Bidwell Park, Chico Comment
  UC5836  Quercus wislizeni unknown 1472 Butte Table Mountain, near Oroville Comment
  CHSC52818  Ranunculus alismifolius var. hartwegii Kirsten Tarp 1983-7-31 317 Butte S of Butte Creek House ca. 32 air miles ne of Chico. In meadow. 1828 Comment
  CHSC110446  Ranunculus arvensis B. Castro 2007-4-19 1620 Butte Sacramento Valley. Ca 0.7 mi S of Chico Airport, N of Sycamore Creek and W of Cohasset Rd. In a shallow depression off N edge of Large old spoils pile, ca 550 ft W of Cohasset Rd and 310 Ft N of levee along Sycamore Creek, in area of grazed grassland and scattered shallow vernal depressions. 57 Comment
  CHSC118055  Ranunculus arvensis Daphne K. Christopher; Hannah Stevens, Lowell Ahart 2003-4-21 227 Butte Off Hwy 99. Ahart Family Ranch along boundary on access road and edge of field. 41 Comment
  CHSC3847  Ranunculus arvensis L. E. Dunkel 1965-4-20 24 Butte Along Cohasset Road ca. 1/2 mi. n of Chico Municipal Airport entrance gate. 33 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
  CHSC45753  Ranunculus flammula var. ovalis Kirsten Tarp 1981-7-19 36 Butte N part of county at Crane Valley; in meadow. 1584 Comment
  CHSC46844  Ranunculus flammula var. ovalis Kirsten Tarp 1982-7-16 206 Butte N part of county at Crane Valley; streamside at margin of meadow. 1584 Comment
  SEINET10535972  Ranunculus hebecarpus Mary Susan Taylor 1980-4-1 Taylor 2424 Butte T22N R2E sc sec 25. In Foothill Savan nah, on bluffs above and S of Butte Creek, ca. 1/4 mi downstream from Honey Run Covered Bridge ca. 6 mi E of Chico. 183 Comment
  JEPS115536  Ranunculus muricatus Lowell Ahart 2009-5-15 15698 Butte About 60 yards northwest of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 2/3 mile (air) west of Highway 32, about 10 miles northeast of Chico 267 Comment
  UC726362  Ranunculus occidentalis A. A. Heller 1919-5-18 13181 Butte between Appleton and Coutolenc; Mosquito Creek 609 Comment
  CHSC109064  Ranunculus occidentalis var. occidentalis Lowell Ahart 2012-4-30 17921 Butte On the southwest side of Ten Mile House Road, about 1/4 mile west of Highway 32, about 9 miles (air) northeast of Chico, south part of Upper Bidwell Park. 392 Comment
  CHSC54308  Ranunculus repens var. pleniflorus Vernon H. Oswald; Lowell Ahart 1991-6-5 4655 Butte Ewalt Camp on the West Branch of Butte Creek, east of Hwy 32 and north of Carpenter Ridge Rd, between Forest Ranch and Lomo. Along the creek. 914 Comment
  CHSC46484  Raphanus raphanistrum Lowell Ahart 1977-5-22 1393 Butte Pasture field, Peter Ahart Ranch, about 2 miles north and 1 1/4 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  SEINET10940374  Raphanus sativus Mary Susan Taylor Taylor 775 Butte Weedy or cultivated plants of Chico. 61 Comment
  UCD115181  Raphanus sativus A. A. Heller 1914-3-16 11203 Butte 8 miles north of Oroville. Comment
  CAS-BOT-BC59570  Rhamnus John Thomas Howell 1975-6-15 51118 Butte Sierra Nevada - Paradise - Skyway near Billie Road 609 Comment
  SEINET13946292 Image available Rhamnus californica A. A. Heller 1915-1 11869 Butte Chico-Centerville road 3 miles from Chico Comment
  CHSC75529  Rhamnus crocea G. F. Hrusa; T. D. Wilfred 1997-5-8 13743 Butte Uncommon on serpentine slope facing E above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. 740 Comment
  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
  POM219424  Rhamnus rubra E. B. Copeland 1931-7-28 657 Butte Jonesville. 1650 Comment
  RSA2158  Rhamnus rubra H. F. Copeland 1930-7-26 1379 Butte Jonesville. 1677 Comment
  RSA104165  Rhamnus tomentella subsp. tomentella R. M. Austin 1883-1 s.n. Butte [Unspecified] Comment
  UC105989  Rhododendron occidentale Mrs. R. M. Austin June, 1896 138 Butte California Comment
  CHSC24683  Rhus aromatica D. Hattem 1976-4-10 5 Butte Ca. 50 m ne of Big Chico Creek, ca. 10 mi ne of Chico. 304 Comment
  CHSC96970  Rhynchospora capitellata Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-10 14278 Butte Northwest part of a large open area, about 250 yards east of Bean Creek Road, northeast of Little Bald Road, about 16 miles (air) northeast of Oroville. 1024 Comment
  UC1562393  Rhynchospora capitellata Vernon Oswald and Lowell Ahart 1990-7-31 4424 Butte ca 4 mi n Concow (bordering Concow Road, n side of meadow); Flea Valley 1127 Comment
  SFV10396  Ribes laxiflorum M. L. Vincent 1968-6-10 835 Butte Sierra Nevada 1.2 miles south from Cresta Power House sign, North Fork Feather River. 460 Comment
Read comments
Dec 6 2013
  CHSC11905  Ribes nevadense E. B. Copeland 1931-7-31 647 Butte Damp spots in woods near Butte Creek. 1550 Comment
  CHSC59982  Ribes nevadense Sharol Lindenstein 1989-3-26 7 Butte Plumas Nat'l forest, Hwy 70, ca. 3.5 mi sw of Sugar Loaf Mt., 2 mi nw of Cresta Powerhouse. 701 Comment
  JEPS27767  Ribes roezlii A. A. Heller 1938-5-1 15057 Butte forest near DeSabla 853 Comment
  UCD102477  Ribes roezlii M. Vincent 1964-4-10 559 Butte Hwy. 32. 10 miles NE of Chico. Comment
  CAS-BOT-BC198965  Ribes roezlii var. roezlii A. A. Heller 1915-6-26 12031 Butte Summit of the Sierra Nevada above Jonesville 2133 Comment
  JEPS119714  Ribes roezlii var. roezlii Lowell Ahart 2012-4-30 17922 Butte On the southwest side of Ten Mile House Road, about 1/4 mile west of Highway 32, about 9 miles (air) northeast of Chico, south part of Upper Bidwell Park. Comment
  CHSC48903  Ribes viscosissimum var. hallii Vernon Oswald 1987-6-9 2968 Butte Near the headwaters of Scotts John Creek, 3.3. mi n of the connector road between Humboldt and Humbug roads, ca. 4 mi ne of Jonesville. 1926 Comment
  HSC73109  Rigiopappus leptocladus M. S. Taylor 1981-5-21 3770 Butte S side of Concow Rd., ca. 0.5 mi. S of its junction with Ponderosa Way, ca. 20 air mi. N of Oroville 854 Comment
  CAS-BOT-BC74467  Rorippa curvisiliqua A. A. Heller 1914-5-30 11469 Butte Sacramento Valley about 6 miles northwest of Chico. Chico-Hamilton road 6 miles from Chico. Comment
  SBBG119803  Rorippa curvisiliqua L. Ahart 2006-6-18 12795 Butte Peter Ahart Ranch, ca. 2 mi N and 0.5 mi E of Honcut, ca. 12 mi S of Oroville 31 Comment
  UC1563290  Rorippa curvisiliqua Lowell Ahart 1990-10-3 6612 Butte about 1/8 mi ne Canyon Creek Bridge (across Lake Oroville, East Fork Canyon Creek, below high water line Lake Oroville); East Fork Canyon Creek, Lake Oroville 243 Comment
  CHSC113161  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2013-11-13 19231 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
  JEPS103453  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2002-10-17 9988 Butte On the hills below the high water line of Lake Oroville, ca 1 1/2 miles S of Highway 162 (Oroville Quincy Highway), ca 3 miles (air) NE of Oroville Dam. 227 Comment
  SEINET10940298  Rorippa curvisiliqua var. occidentalis Lowell Ahart 1985-4-20 Ahart 4877 Butte On the floor of a rice field, Peter Ahart Ranch, about 2 miles north and 1/8 mile east of Honcut, about 12 miles south of Oroville. Comment
  CHSC101762  Rorippa nasturtium-aquaticum Lowell Ahart 2009-5-23 15728 Butte Opening in a drainage, on the east side of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 236 Comment
  CHSC9136  Rorippa nasturtium-aquaticum Terril Wolt 1970-4-20 28 Butte Streams; ca. 4 mi. N.E. of Skyway, on W. side of Humbug Rd. Comment
  CHSC39066  Rorippa palustris var. occidentalis R. A. Schlising 1983-3-20 4397 Butte Richvale Vernal Pools, 0.25 mile south of junction with Highway 162 to Oroville, along Highway 99, and across from Thermalito Afterbay. Comment
  CHSC31878  Rosa L. Ahart 1976-5-21 1115 Butte Along the edge of North Honcut Creek, Peter Ahart Ranch, Honcut. 45 Comment
  CHSC65584  Rosa bridgesii L. P. Janeway 1995-6-1 4766 Butte South-trending ridgetop at the far western end of Jackson Ranch Ridge, about 0.9 mi east-northeast of the falls of Feather Falls. 1054 Comment
  POM90181  Rosa californica C. C. Bruce 1897-06 1807 Butte Little Chico. Comment
  CHSC93959  Rosa pisocarpa R. D. Fischer 2004-6-20 756 Butte Sierra Nevada Mountains, north-east corner of Butte County and ca. 4 miles north of Butte Meadows off Scout Road. Boy Scout Camp. Plants collected off a dirt road running on the east side and parallel to Chico Meadows. 1371 Comment
  RSA718384  Rosa pisocarpa L. Ahart 2006-6-24 12857 Butte On the W side of the dirt road (Ponderosa Way) at an intersection, a gated road goes NW, on Cohasset Ridge, about 3.75 miles (air) NE of Cohasset. 1128 Comment
  CHSC82367  Rosa rubiginosa Lowell Ahart 2002-6-9 9715 Butte About 300 yards west of Dunstone Drive, about 200 yards east of North Honcut Creek, about 3 miles (air) northeast of Honcut, about 12 miles (air) southeast of Oroville. 60 Comment
  CAS-BOT-BC147095  Rubus John Thomas Howell 1959-9-20 34684 Butte Eastern outskirts of Oroville 60 Comment
  UCD166765  Rubus armeniacus Marcel Rejmanek 2016-10-6 2161 a Butte By Highway 99, ca 200 m south from the intersection with the West Hamilton Rd. Comment
  CAS-BOT-BC156608  Rubus bifrons Lowell Ahart 1984-6-10 4716 Butte About 1/2 mile south-east of the Forbestown Diversion Dam, north-east of Forbestown 450 Comment
  CHSC30715  Rubus laciniatus M. S. Taylor 1980-5-27 2649 A Butte Near parking lot, Big Bald Rock, ca. 3 mi e of Lake Madrone. 975 Comment
  JEPS98693  Rubus laciniatus Lowell 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. 1219 Comment
  CHSC65431  Rubus pensilvanicus Vernon Oswald 1987-4-16 2330 Butte Butte Creek Reserve on the n side of Butte Creek e of the Skyway. 74 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
  UCD89071  Rubus ursinus Lindsay Clark 2008-5-30 BWP 22 Butte Bidwell Park in Chico, along Yahi trail between parking lots G and H (Alligator Hole and Day Camp). 89 Comment
  UCD89072  Rubus ursinus Lindsay Clark 2008-6-3 BWP 26 Butte Bidwell Park in Chico, along Yahi trail between parking lots G and H (Alligator Hole and Day Camp). 92 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
  JEPS114963  Rumex acetosella Lowell Ahart 2008-5-8 14726 Butte Below the high water line of Lake Oroville, about 50 yards east of the poor parking area, McCabe Creek area, about 3/4 mile southwest of the Enterprise Bridge, about 11 miles (air) east of Oroville 264 Comment
  CAS-BOT-BC421907  Rumex acetosella Lowell Ahart 1982-5-28 3443 Butte East of North Honcut Creek, about 1 1/2 miles north and 3 miles east of Honcut 50 Comment
  CHSC111139  Rumex conglomeratus Lowell Ahart 2012-6-14 18184 Butte On the north side of Big Chico Creek, near the intersection of Arbutus and Vallombrosa Avenue, Lower Bidwell Park, Chico. 63 Comment
  CHSC111172  Rumex conglomeratus Lowell Ahart 2013-6-18 18805 Butte About 60 yards west of Parking Lot 14, Gray Lodge Wildlife Management Area, about 7 miles (air) southwest of Gridley. 19 Comment
  CHSC64050  Rumex crispus S. C. Morey 1983-8-4 710 Butte On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  SEINET10838759  Rumex crispus Mary Susan Taylor 1975-8-31 Taylor 876 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
  CHSC25289  Rumex obtusifolius subsp. agrestis M. S. Taylor 1977-7-15 1420 Butte Scattered along w branch of Feather River, ca. 1 mi n of Magalia, ca. 1 mi e of the Skyway. 677 Comment
  SEINET10479441  Rumex pulcher Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4145 Butte T20N R5E nw sec 15. Around a small meadow along Ponderosa Way (Big Ridge Rd), ca. 1/2 mi s of East Fork Canyon Creek, ca. 13.5 mi ne of Oroville. Foothill Woodland. 550 Comment
  SEINET10871638  Rumex triangulivalvis var. oreolapathum Lowell Ahart 1984-6-8 Ahart 4675 Butte Along the dirt road near the water tower, above the generator, ca. 1 mi E of Ponderosa Dam, ca. 2 mi N of Forbestown; Yellow Pine Forest; 475 m. 475 Comment
  CHSC35029  Sagina apetala R. A. Schlising 1981-4-6 4017 Butte SW of Oroville along Hwy 70, 0.8 mi N of jct with Cox Lane. Comment
  CHSC113340  Sagina decumbens subsp. occidentalis Lowell Ahart 2014-5-21 19530 Butte South bank of river, where Sucker Creek flows into the South Fork of the Feather River, below the high water line of Lake Oroville, about 1/4 mile west of the Ponderosa Dam. 249 Comment
  CHSC98805  Sagina decumbens subsp. occidentalis Lowell Ahart 2008-5-2 14709 Butte Below the high water line of Lake Oroville, about 100 yards southwest of the Enterprise Boat Launch Area, about 10-1/2 miles (air) northeast of Oroville. 238 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
  JEPS127102  Sagina decumbens subsp. occidentalis Lowell Ahart 2016-4-15 20746 Butte About 1/2 mile southwest of Dutch Ravine, about 8 miles (air) southeast of Oroville. Comment
  CDA13832  Sagittaria longiloba G. F. Hrusa, T. D. Wilfred 1996-9-5 13560 Butte Butte Basin; Wet bank of White's Drain at edge of rice fields E 1/4 mi. from Butte Creek at Western Canal District Dam. Perennial, flowers white. Not common here. Comment
  SEINET10538833  Salix exigua Mary Susan Taylor 1975-4-26 Taylor 525 Butte Kunkle Reservoir, ca. 500 yds E of Pentz-Magalia Hwy, ca. 1 m SE of Paradise. With Orthocarpus erianthus, Centaurea solstitus, Lupinus bicolor, Typha latifolia. 610 Comment
  JEPS119882  Salix exigua var. hindsiana Lowell Ahart 2012-6-5 18170 Butte On the bottom of Beatson Hollow, about 1mile northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 6 miles (air) north of Oroville. Comment
  CAS-BOT-BC107963  Salix geyeriana H. F. Copeland 1931-6-11 1546 Butte Kirby Meadows, Jonesville 1828 Comment
  JEPS122277  Salix gooddingii Lowell Ahart 2014-4-9 19347 Butte West end of Liberty Road, about one mile (air) south of Colusa Highway, about 7 miles (air) southwest of Gridley. Comment
  RSA754449  Salix gooddingii L. Ahart 2009-6-3 15827 Butte Along a small stream, meadow, about 50-55 yards SE of the gate, about 40-45 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
  CHSC108810  Salix lasiolepis Lowell Ahart 2012-4-9 17830 Butte Wet area in the rock corral, east of the cement dam in Big Chico Creek, west of South Rim Trail, south part of Upper Bidwell Park, about 2 miles (air) northeast of Chico. 110 Comment
  HSC104023  Salix lasiolepis L. Ahart 2012-2-22 17750 Butte About 9 air mi. NE of Chico, ~ 5/8 mi. W of Hwy. 32, edges of the pond at the old homestead 259 Comment
  SEINET11957677  Salix lasiolepis Unknown 1987-1 5490 Butte along North Honcut Creek, 2.5 mi n and 3 mi e of Honcut, 12 mi SE of Oroville 67 Comment
  CAS-BOT-BC129587  Salix lasiolepis var. lasiolepis Lowell Ahart 1982-5-8 3408 Butte Near the Forbestown Res, about 1 mile south-west of the Forbestown Res., about 4 miles north-east of Forbestown. 800 Comment
  CAS-BOT-BC129624  Salix lasiolepis var. lasiolepis John Thomas Howell 1961-9-22 36779 Butte Jarbo Gap, Feather River Highway - Sierra Nevada 60 Comment
  UC75007  Salix melanopsis Dr. E. B. Copeland 1903-5-28 3278 Butte banks of Butte Creek Chico Comment
  CAS-BOT-BC125949  Salix scouleriana E. B. Copeland 1931-7-30 624 Butte Jonesville 1550 Comment
  CHSC50544  Sambucus racemosa var. microbotrys Vernon Oswald; Lowell Ahart 1990-6-20 4309 Butte South side of Philbrook Creek, ca. 0.5 mi west of the Butte-Plumas county line, between Philbrook Reservoir and Carr Mine. 1965 Comment
  CDA31962  Sanguisorba minor subsp. muricata L. Ahart 2009-5-23 15732 Butte On the east of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. Comment
  CHSC90615  Sanicula bipinnata Chris Ottinger 1983-3-15 17 Butte Ca. 0.6 km sw of Covered Bridge, s side of Butte Creek, 10.2 km ese of Chico. 120 Comment
  SEINET10454565  Sanicula bipinnata Mary Susan Taylor 1975-4-26 Taylor 512 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
  SEINET12121437  Sanicula bipinnata R. S. Mitzel 1982-1 3 Butte ca 50 yds S of Horseshoe Lake in Upper Bidwell Park, 3 mi NE of Chico 61 Comment
  CHSC1977  Sanicula bipinnatifida A. Goekler 1929-3-24 Butte Richardson Springs road. 152 Comment
  UCD72989  Sanicula bipinnatifida Ayzik Solomeshch 2003-4-9 s.n. Butte Wurlitzer Reserve, about 10 mi. north from Chico on Hwy 99, west side of the road. Comment
  CAS-BOT-BC223241  Sanicula bipinnatifida Clarence R. Quick 1954-7-31 54 -02 Butte Big Bar Mt. ridge east of Pulga Comment
  CHSC101308  Sanicula crassicaulis Lowell Ahart 2009-4-22 15566 Butte West side of 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
  CHSC50312  Sanicula graveolens Vernon Oswald; Lowell Ahart 1990-5-29 4260 Butte Northwest side of Humboldt Rd (to Butte Meadows), ca. 1.8 miles northeast of Lomo. 1325 Comment
  CHSC36539  Sanicula tracyi L. Ahart 1982-6-4 3548 Butte On a lava cap, 1.5 mi e of Camp 18 and ca 8 mi e of Feather Falls. 1000 Comment
  SEINET3450850  Sanicula tuberosa Unknown 2003-4-15 10101 Butte Oroville, Oroville, about 7 air miles north, North Table Mountain, about 1.25 miles northwest of the iron gate and fence, northwest of Cherokee Road, steep slopes of Beatson Hollow 280 Comment
Read comments
May 5 2015
  SEINET10454589  Sanicula tuberosa Mary Susan Taylor 1979-3-20 Taylor 1938 Butte T21N R4E nw1/4 sec. 21. Cherokee Quad. Along old road on N side of Hwy 70 following West Branch of the Feather River, which begins at S side of bridge over N fork of Feather River, ca. 10 mi N of Oroville; limestone outcrops within Foothill Woodland. 305 Comment
  SEINET10454590  Sanicula tuberosa Mary Susan Taylor 1981-3-31 Taylor 3461 Butte T23N R4E center sec 36. Pulga SW quad. S side of Ponderosa Way (Rim Rd), ca. 1/4 mi se of its jct with Concow Rd, ca. 20 air mi n of Oroville; 3200 ft. 975 Comment
  SEINET10972971  Sanicula tuberosa Mary Susan Taylor 1981-3-31 Taylor 3455 Butte T22N R4E ne sec 12. Pulga SW quad. N side of spur rd 1/4 mi w of its jct with Ponderosa Way (Rim Rd), ca. 5 air mi n of its jct with Hwy 70 at Jarbo Gap, 18 air mi ne of Oroville; 2600 ft. 792 Comment
  SEINET13945254 Image available Sanicula tuberosa A. A. Heller 1915-1 11807 Butte Plentiful near Cohasset in the chaparral. Near the upper limit of the digger pine in the Sierra foothills. Comment
  JEPS105598  Sapium sebiferum Gavin Blosser 2003-10-23 Butte Northern Sierra Nevada Foothills; between Bidwell Canyon Drive and Lake Oroville, 440 ft S of Arroyo Drive and 2200 ft SW of Bidwell Canyon Campground 283 Comment
  JEPS119921  Saponaria officinalis Lowell Ahart 2012-10-20 18497 Butte On the south side of Big Chico Creek, about 50 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  UC600618  Saxifraga odontoloma E. B. Copeland 1931-7-20 Butte Jonesville Comment
  CHSC34224  Scandix pecten-veneris M. S. Taylor 1981-5-1 3589 Butte E side of Hwy 70, ca. 4 air mi nw of Oroville. 91 Comment
  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
  CHSC66366  Schoenoplectus mucronatus Vernon H. Oswald 1996-6-20 7836 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. A seasonal marsh at the SW corner of Tract 2, Sanctuary II. 33 Comment
  CHSC113382  Scirpus congdonii Lowell Ahart 2014-7-2 19542 Butte On the north side of the County Road, about one mile west of the intersection of County Road and Lumpkin Road, about 7 miles northeast of Feather Falls. 1260 Comment
  CHSC56795  Scirpus congdonii L. P. Janeway; R. A. Schlising 1988-7-16 3033 Butte Large meadow at 'headwaters' of Willow Creek. 1935 Comment
  CHSC38914  Scirpus microcarpus Vernon Oswald 1983-5-27 570 Butte Upper Bidwell Park, Chico, at the base of the retaining wall along Chico Creek at the e end of Centennial Ave. 85 Comment
  CHSC56813  Scirpus microcarpus L. P. Janeway 1987-7-4 2414 Butte Along West Branch Feather River at bridge 1.8 mi from Inskip. 1341 Comment
  CAS-BOT-BC239956  Scribneria bolanderi Lowell Ahart 1980-5-4 2173 Butte Thermalito 65 Comment
  RSA0024699  Scribneria bolanderi L. Ahart 2003-5-18 10180 Butte Peter Ahart Ranch. About 2 miles north and 2 miles east of Honcut, about 12 miles southeast of Oroville. 49 Comment
  UC1563260  Scrophularia californica subsp. floribunda unknown 1990-10-21 6634 Butte 1/2 mi w Gold Flat (ca 1 mi n of Nelson Bar Rd, Lake Oroville) 243 Comment
  SEINET12765223  Scutellaria californica Lowell Ahart 1992-5-9 6761 Butte On the north side of the Thermalito Diversion Pool, Lake Oroville Recreation Area, about 2 (air) miles north of Oroville.; 0 76 Comment
  UC1174820  Scutellaria californica E. K. Balls 1960-7-7 24170 Butte Banda Creek, Hwy 40 Banda Creek 579 Comment
  CHSC63968  Scutellaria tuberosa B. Castro; L. P. Janeway 1994-4-21 511 Butte On Watson Ridge, on S-trending ridge just S of USFS Rd 21N25A. 1054 Comment
  HSC23383  Sedella pumila Larry D. Scott 1971-4-7 4 Butte 4 mi. NE of Chico, 20 yds. N of Skyway Comment
  HSC27264  Sedella pumila J. P. Smith 1972-3-23 5096 Butte 1.6 mi. from junction with Hwy. 99 on road to Paradise Comment
  HSC32418  Sedella pumila Kitsy Kelly 1974-4-20 13 Butte 300 yds. S of the intersection of Pentz and Clark Rds. 61 Comment
  SFV1567  Sedum spathulifolium M. L. Vincent 1962-4-18 211 Butte Near Feather River at Hells Town. Comment
  CHSC28874  Selaginella hansenii M. S. Taylor 1980-2-24 2322 Butte On bluffs overlooking the waterfall on east branch of Mud Creek, ca. 1/2 mi upstream from the Richardson Springs Hotel, ca. 6 mi ne of Chico. 243 Comment
  RSA755636  Selaginella wallacei Lowell A. Ahart, John Dittes, Steve Green 2009-1-17 15473 Butte Large rock on the south side of Guardian Rock Trail, about 20 yards west of the intersection of Humboldt Trail and Guardian Rock Trail, Upper Bidwell Park. 322 Comment
  UCD135989  Selaginella wallacei L. Ahart 1973-12-28 293 Butte Peter Ahart Ranch, about 1.25 miles north and 3 miles east of Honcut, about 12 miles south of Oroville, along North Honcut Creek. 45 Comment
  CHSC76039  Senecio aronicoides G. F. Hrusa; T. D. Wilfred 1997-5-7 13741 Butte Sierra Nevada. At summit of SSE slope above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. [Original Lat./Long. on label is '39 51 N; 121 34 W']. 750 Comment
  UC472365  Senecio aronicoides H. M. Hall 1912-5-26 Butte Stirling City Sierra Nevada Mountains Comment
  POM193091  Senecio cymbalarioides E. B. Copeland 1930-6-27 497 Butte Jonesville. 1550 Comment
  CHSC89479  Senecio eurycephalus var. eurycephalus Jenny Marr 1994-7-6 210 Butte Located in the mountains above Oroville off Forbestown Reservoir Road. 883 Comment
  CHSC86441  Senecio eurycephalus var. lewisrosei Jenny Marr 1993-7-1 93 Butte Located in Northern Sierra Nevada, between Concow and Pulga, on a serpentine outcrop belonging to LNF. Site approx. 4 air miles NE of Concow Reservoir. 1105 Comment
  CAS-BOT-BC341182  Senecio lugens E. B. Copeland 1929-7-14 498 Butte Jonesville 1650 Comment
  CDA7667  Senecio sylvaticus L. Ahart 1998-6-3 7966 Butte About 1/4 mile north of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  CHSC113948  Senecio sylvaticus Lowell Ahart 2014-8-13 19706 Butte 10 yards east of the east edge of a large wet meadow (some bog), about 120 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC116206  Senecio sylvaticus Lowell Ahart 2015-7-4 20269 Butte Clear cut area on the south side of the County Road, about 3/4 mile west of the intersection of Lumpkin Ridge Road, road to Cascade or Fall River and County Road, about 7 (air) miles northeast of Feather Falls. 1270 Comment
  JEPS118584  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. Brush Creek 7.5' quad. Comment
  CDA8687  Senecio triangularis T. C. Fuller 1962-7-12 9168 Butte 2 miles east of Butte Meadows. 0 Comment
  CDA34164  Senecio vulgaris L. Ahart 2009-4-17 15539 Butte On the south slope of a ridge about 150 yards west of Highway 32, near the south boundary, Upper Bidwell Park, about 5 miles (air) northeast of Chico. Comment
  CHSC30365  Senecio vulgaris J. D. Jokerst; T. B. Devine, D. Greenstein 1979-4-20 692 Butte Top of North Table Mt, 100 m E of the waterfalls of the S branch of Coal Cr. 365 Comment
  CHSC31587  Senecio vulgaris L. Ahart 1977-9-24 1586 Butte Near the edges of North Honcut Creek. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC45011  Senecio vulgaris Lowell Ahart 1977-3-29 1233 Butte In the borrow area, about 5 air miles south-west of Oroville. 30 Comment
  CHSC90185  Senecio vulgaris Robert Kissane 1989-4-18 8 Butte On Moore's ranch, 2090 Oak Park Avenue, Chico. 70 Comment
  JEPS119600  Senecio vulgaris Lowell Ahart 2012-4-9 17839 Butte Northwest of South Rim Trail, south part of Upper Bidwell Park, about 2 1/4 miles (air) northeast of Chico. Comment
  CAS-BOT-BC364727  Sericocarpus oregonensis subsp. californicus Lowell Ahart 1981-8-31 3053 Butte West of Forbestown 750 Comment
  CAS-BOT-BC364731  Sericocarpus oregonensis subsp. californicus John Thomas Howell 1959-9-26 35094 A Butte At Pulga Bridge, North Fork of the Feather River Comment
  CAS-BOT-BC240121  Setaria pumila John Thomas Howell 1961-9-22 36735 Butte Bank of Feather River, Oroville 53 Comment
  CHSC31627  Setaria pumila L. Ahart 1975-6-23 802 Butte Along North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  SBBG128045  Setaria viridis L. Ahart 2010-9-24 17237 Butte irrigated, near the SW edgeof the Golf Course, ca. 10 yards S of the footbridge, along trail from the end of Centennial Avenue to the footbridge across Big Chico Crk, Bidwell Park 91 Comment
  CHSC12128  Sherardia arvensis J. M. Pitts 1972-4-15 110 Butte Ca 8 mi from Cherokeeon top of Table Mountain. 274 Comment
  CHSC38661  Sherardia arvensis Vernon Oswald 1983-3-19 196 Butte Upper Bidwell Park, Chico, near Chico Creek ca. 1000 feet W of the E end of Upper Park Rd. 207 Comment
  CHSC82397  Sherardia arvensis Lowell Ahart 2002-5-7 9643 Butte High banks of a pond, at the beginning of a southeast branch of Schirmer Ravine, about 50 yards east of the pond on the east side of Cherokee Road, North Table Mountain, about 4 miles (air) north of Oroville. 228 Comment
  SEINET10500670  Sherardia arvensis Mary Susan Taylor 1979-3-31 Taylor 1975 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
  CHSC37439  Sidalcea asprella R. A. Schlising; J. D. Jokerst 1982-6-4 4286 Butte N of Oroville and n of Jarbo Gap along Hwy 70. Comment
  CHSC101826  Sidalcea calycosa subsp. calycosa Lowell Ahart 2009-5-23 15764 Butte Along a small drainage, on the west side of Guardians Trail, just northwest 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
  JEPS50070  Sidalcea diploscypha W. L. Jepson 1932-5-9 16369 Butte e Cana; e of Cana 57 Comment
  JEPS100686  Sidalcea gigantea Dean W. Taylor 1995-8-6 15380 Butte 3 air mi NE of Stirling City (near Jackass Flat); Plumas National Forest 1219 Comment
  UC1755048  Sidalcea gigantea Dean W. Taylor 1995-8-6 15380 Butte 3 air mi NE of Stirling City (near Jackass Flat); Plumas National Forest 1219 Comment
  POM84770  Sidalcea glaucescens Marcus E. Jones 1897-7-9 s.n. Butte On road from Ptrattville to Chico at Jonesville. 1524 Comment
  UC108901  Sidalcea hartwegii Mrs. R. M. Austin 1883-1 Butte Little Chico Comment
  CHSC28473  Sidalcea hirsuta R. A. Schlising 1979-5-30 3429 Butte Richvale vernal pools; 1/4 mile S of jct Hwy 162-to-Oroville and Hwy 99, along latter and across from Thermalito Afterbay. Comment
  CHSC99019  Silene antirrhina Lowell Ahart 2008-5-21 14773 Butte Dry bare granite soil, below the high water line of Lake Oroville, on the north and south side of the South Fork of the Feather River, where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 246 Comment
  SEINET5337143  Silene californica M. J. Williams 1967-4-22 s.n. Butte Road to Feather Falls from Oroville. 244 Comment
  CAS-BOT-BC385884  Silene douglasii A. A. Heller 1914-8-7 11661 Butte Summit east of Jonesville 2133 Comment
  CDA33638  Silene gallica R. A. Price 2010-5-1 s.n. Butte Along Oroville Reservoir; northwest of bridge. 0 Comment
  CHSC38302  Silene laciniata subsp. californica Vernon Oswald 1983-4-17 325 Butte Upper Bidwell Park, Chico, beside Yahi Trail w of Brown's Hole. Near the bottom of canyon. 182 Comment
  CHSC90050  Silene laciniata subsp. californica Peggy Fain 1991-4-21 19 Butte Ca. 3 km. E. of Richardson Springs Hotel, N. side of Walker Creek, Musty Buck Preserve. 243 Comment
  CHSC3517  Sisyrinchium bellum John Francis 1966-4-16 108 Butte 3.7 miles E. of covered bridge (Honey Run). Comment
  JEPS121916  Sisyrinchium bellum Lowell Ahart 2014-7-10 19619 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  UC426901  Sisyrinchium bellum E. B. Copeland 1930-8-3 Butte Jonesville 1500 Comment
  UC844610  Smilacina racemosa A. A. Heller 1915-6-11 11968 Butte Chico Meadows Sierra Nevada 1219 Comment
  SEINET10472590  Smilacina stellata Mary Susan Taylor 1981-5-13 Taylor 3705 Butte T22N R6E se/se sec 5, Pulga SE quad. Jct of 23N15.5, 22N66X, and 22N40X, ca. 2 air mi S of Four Trees Rd, ca. 1 air mi W of Elks Retreat on Oroville-Quincy Hwy. 4200 ft. 1280 Comment
  CHSC2313  Smilax californica V. Holt 1935-5-18 Butte Fern Banks along Chico Creek. 91 Comment
  CHSC92478  Solanum americanum Lowell Ahart 2005-11-20 12492 Butte On the east side of the North Fork of the Feather River, about 50 yards southwest of the Poe Power House. 275 Comment
  JEPS95810  Solanum americanum Lowell Ahart 1999-10-28 8319 Butte about 1 mile southeast of Ord Ferry Ord Ferry; Chico; northwest of Parrott Landing; about 1 mile southeast of Ord Ferry; about 2 miles southeast of Ordbend; about 12 miles (air) southwest of Chico 32 Comment
  UCD126974  Solanum parishii A. A. Heller 1915-4-12 11814 Butte Butte County. 14 miles northeast of Chico near Rock creek. Comment
  POM69611  Solanum umbelliferum C. C. Bruce 1898-03 1872 Butte Plains [no specific locality given] Comment
  POM69612  Solanum umbelliferum R. M. Austin 1876-07 s.n. Butte American Valley. Comment
  CAS-BOT-BC365382  Solidago elongata A. A. Heller 1914-7-23 11611 Butte Sierra Nevada at Chico Meadows 1219 Comment
  UC179683  Solidago elongata A. A. Heller 1914-8-6 11639 Butte Chico Meadows 1219 Comment
  UC179684  Solidago elongata A. A. Heller 1914-7-23 11611 Butte Chico Meadows 1219 Comment
  CHSC26703  Solidago velutina subsp. californica M. S. Taylor; M. Hayes, R. Schlising 1977-8-17 1455 Butte On both sides of Hwy 32, ca. 6 mi s of Forest Ranch. 609 Comment
  CHSC28692  Soliva sessilis M. S. Taylor 1979-5-6 2006 Butte Peter Ahart Ranch, Honcut. 45 Comment
  UCD136103  Soliva sessilis H. Clem Meith 1961-4-4 s.n. Butte Oroville. Comment
  JEPS115371  Sonchus asper subsp. asper Lowell Ahart 2009-6-3 15817 Butte About 100 yards west of the table at the old homestead and southwest of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 239 Comment
  CHSC103987  Sonchus oleraceus Lowell Ahart 2010-5-14 16671 Butte On the south side of a trail, about 1/2 mile west of the entrance to the Disc Golf Area, west of Highway 32. Upper Bidwell Park, about 4 1/2 miles (air) northeast of Chico. 260 Comment
  CHSC31659  Sonchus oleraceus L. Ahart 1978-7-15 1782 Butte Around the garden, Peter Ahart Ranch, Honcut. 50 Comment
  CAS-BOT-BC374754  Sonchus tenerrimus Lowell Ahart 1984-11-1 4832 Butte On the Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville 50 Comment
  SEINET10483618  Sorbus scopulina var. cascadensis Lowell Ahart 1983-8-16 Ahart 4300 Butte T26N R4E nw section 28. Along a small stream that flows into Butte Creek, ca. 1 mi east of Butte Meadows. Yellow Pine Forest; 1450 m. 1450 Comment
  CHSC9344  Sorghum halepense B. Anthony 1968-5-8 513 Butte 2 miles E. of Hamilton City, Hwy. 32. Comment
  SEINET5319143  Sorghum halepense R. Halse 2006-8-2 6982 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  CHSC47699  Sparganium emersum subsp. emersum Lowell Ahart 1989-9-21 6399 Butte Along the margins of a apond, on a branch of French Creek, north of the gravel road, about 1 mile west of the Sly Creek Reservoir. 1158 Comment
  CHSC3747  Spartium junceum R. L. Adams 1964-4-14 57 Butte Elliot Road 1/2 mile from Skyway on E, side of road, Paradise. 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
  CHSC112242  Spergularia bocconi Lowell Ahart 2013-4-20 18563 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
  CHSC33675  Spergularia bocconi L. Ahart 1981-5-16 2799 Butte Along edge of dirt roads on Graylodge Waterfowl Mgmt Area, 11 mi sw of Gridley. 35 Comment
  CHSC46353  Spergularia bocconi Lowell Ahart 1989-5-23 6244 Butte Along the edges of Avocado Road, about 1/2 mile west of the Oroville Bangor Highway, about 1 mile north-west of Bangor. 213 Comment
  CAS-BOT-BC390601  Spergularia rubra Lowell Ahart 1983-8-16 4309 Butte Near Bull Hill Road, about 3 1/2 miles south of Butte Meadows 1600 Comment
  RSA4428  Spiraea densiflora var. splendens E. B. Copeland 1931-6-19 649 Butte Jonesville. At 'the Summit'. 2100 Comment
  CHSC20526  Spiraea prunifolia Pamela Caldwell 1972-3-2 Butte CSUC Campus. N entrance Lassen Hall Bridge. Citrus Ave. Comment
  CHSC85751  Stachys ajugoides var. ajugoides G. F. Hrusa; T. D. Wilfred 1996-7-9 13166 Butte Sierra Nevada--Plumas National Forest. Approx. 0.4 m. E of bridge over Marble Creek on USFS N60. [Lat./Long. on label is '39 degrees 46' N; 121 degrees 17' W']. 1150 Comment
  CHSC28171  Stachys ajugoides var. rigida J. D. Jokerst 1979-8-12 318 Butte 1.0 mi. W. of W. Branch Feather River along creek. 853 Comment
  CHSC52206  Stachys ajugoides var. rigida L. P. Janeway 1988-7-29 3096 Butte Along W Br Butte Cr at Lomo. 1158 Comment
  CAS-BOT-BC5599  Stachys pycnantha A. A. Heller 1914-7-23 11592 Butte Sierra Nevada at Chico Meadows 1219 Comment
  CHSC108744  Stachys pycnantha B. Castro; L. P. Janeway 2002-8-11 1380 Butte Northern High Sierra Nevada. Along NW side of Hwy 70, 0.8 mi NE of Jarbo Gap; at roadside seep feeding unnamed ephemeral tributary of N. Fork Feather River. 670 Comment
  CHSC38483  Stachys pycnantha Vernon Oswald 1983-8-9 974 Butte Upper Bidwell Park, Chico, on the s side of Chico Creek ca. 500 ft upstream from Five Mile Recreation Area. 85 Comment
  SEINET12326786  Stachys pycnantha Unknown 1983-1 4428 Butte ca 0.12 mi NE of Kunkle Reservoir, S of Paradise 600 Comment
  SD6179  Stachys rigida var. rigida E. B. Copeland 1930-7-20 Butte Jonesville 1500 Comment
  CHSC26645  Stachys stricta M. S. Taylor 1977-11-12 1534 Butte In Devil's Kitchen, Upper Bidwell Park, Chico. 243 Comment
  UC832685  Stebbinsoseris heterocarpa A. A. Heller 1914-4-13 11282 Butte 8 mi n Oroville Comment
  CHSC48273  Stellaria calycantha Vernon Oswald 1987-7-29 3166 Butte Between the dead-end spur road paralleling Coon Hollow Road on the south and the southwestern-most lake in a cluster of three located in the SE1/4 of S6. Along a streamlet. 1752 Comment
  CHSC61309  Stellaria crispa Lowell Ahart 1993-7-22 7089 Butte In the campground on the west side of the bridge across Fall River, about 6 (air) miles north-east of Feather Falls. 1036 Comment
  SD8166  Stellaria longipes subsp. longipes Mrs. R. M. Austin 1883-1 Butte Comment
  UCD99315  Stellaria longipes subsp. longipes E. B. Copeland Jun and Jul 1931 s.n. Butte Jonesville. 1500 Comment
  CHSC40649  Stellaria nitens Ahart; Jokerst 1985-3-24 4862 Butte West of Lunt Road, about 1/2 mile north of the intersection of Lunt Road and Highway 70, north of Yankee Hill. 550 Comment
  SEINET12558144 Image available Stellaria nitens Lowell Ahart 1983-1 3907 Butte about 1/2 mile southwest of the Forbestown Res., along the road where there is a serpentine slide area, about 4 miles north-east of Forbestown, California 450 Comment
  JEPS122212  Stellaria pallida Lowell Ahart 2014-4-20 19386 Butte About 30 yards west of a small drainage, about 80 yards southwest of a small falls, about 3/4 mile northwest of the parking area on the west side of Cherokee Road, about 7 miles (air) north of Oroville. Comment
  CHSC42693  Stellaria umbellata Vernon Oswald; Lowell Ahart 1987-7-1 3075 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 the medium-sized (north) lake. 1935 Comment
  JEPS124149  Stephanomeria paniculata Lowell Ahart 2015-11-7 20623 Butte About 1/8 mile south of the end of Alternate 40, strand of Lake Oroville, Dark Canyon, about 4 miles (air) south of Highway 70, about 8 miles (air) southeast of Paradise. Comment
  CHSC51360  Stephanomeria virgata subsp. pleurocarpa Vernon Oswald 1990-9-4 4445 Butte Feather Falls Trail on the approach to the overlook. 609 Comment
  RSA0038270  Stipa californica E. B. Copeland 1929-7-16 s.n. Butte Jonesville. 1550 Comment
  SEINET10959473  Stipa lemmonii Lowell Ahart 1987-5-9 Ahart 5583 Butte Along Pulga Road, about 0.25 miles West of Bardees Bar along the North Fork of the Feather River, about 2.5 miles South-West of Pulga. Yellow Pine Forest. Common, on dry broken serpentine. "Lemmon's Stipa". 366 Comment
  SEINET10508395  Stipa nelsonii Mary Susan Taylor, L. Hanson 1981-4-10 Taylor 3522 Butte T22N R4E ne sec 2, Pulga SW quad. S-facing barren serpen- slope ca. 50 ft. up from creek, ca. 1/4 mi n of Pine Cluster Ranch, base of open dry serptentine outcrop between Concow Rd and a large knoll, ca. 6 mi n of Jarbo Gap on Hwy 70; 2400 ft. 721 Comment
  HSC103816  Streptanthus L. Ahart 2006-7-11 12939 Butte About 50 yds. S of Humboldt Road, ~1.5 air mi. SW of Butte Meadows 1436 Comment
  CHSC7047  Streptanthus diversifolius Darron Cook 1969-4-22 66 Butte W. side road top Table Mtn. ca. 7 mi n of Oroville. Comment
  RSA731184  Streptanthus longisiliquus G. L. Clifton 1997-6-13 35529 Butte 0.8 km north of Robley Point. 939 Comment
  CHSC43439  Streptanthus polygaloides Lowell Ahart 1979-6-9 1928 Butte Near the edge of the dirt road that goes to the West Branch of the Feather River, about 1/2 mile east of Magalia/ 640 Comment
  SBBG29856  Streptanthus polygaloides L. Constance 1941-5-28 2826 Butte south branch of the Feather River at Magalia 487 Comment
  UC1586579  Streptanthus polygaloides Vernon H. Oswald and Lowell Ahart 1991-6-5 4648 Butte dirt road to Minnie-Ha-Ha Mine (on w side of Hwy 32 ca 1.5 air mi nw of Platte Mtn Lookout, between Forest Ranch and Lomo); Big Chico Creek 701 Comment
  UCD116302  Streptanthus tortuosus Robert E. Preston 1984-6-19 462 Butte 12 km NE of Oroville, Oro-Quincy Hwy on north side of Canyon Creek bridge. 305 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
  CHSC57124  Streptanthus tortuosus var. suffrutescens L. P. Janeway 1991-5-1 3923 Butte Dark Canyon Road ca 1 1/4 mi south of Hwy 70. Road-cut bank. 518 Comment
  CHSC80521  Streptanthus tortuosus var. suffrutescens Vernon H. Oswald 2001-4-8 9995 Butte Old roadbed paralleling Oroville-Quincy Hwy just north of Bidwell Bar Bridge. 292 Comment
  CHSC93178  Streptanthus tortuosus var. tortuosus L. P. Janeway 1994-6-17 4666 Butte Northern High Sierra Nevada. Northwest side of canyon of North Fork Feather River, +-overlooking Cresta; along Pulga Road (Camp Creek Road) 6.1 mi northeast of Pulga Bridge (Hwy 70). Southeast-facing road cutbank. 670 Comment
  UC1609006  Streptopus amplexifolius var. americanus Lowell Ahart 1993-9-13 7232 Butte about 1 mi se Butte Meadows (banks of Bolt Creek); Bolt Creek 1325 Comment
  UC877968  Styrax officinalis var. redivivus A. A. Heller 1915-5-25 11891 Butte ridge above Enterprise; Sierra Nevada 609 Comment
  CAS-BOT-BC48064  Styrax redivivus Lowell Ahart 1989-5-29 6309 Butte along the edge of the gravel road to the Forbestown Reservoir, about 1 mile north-east of Forbestown Road, 822 Comment
  CHSC46698  Subularia aquatica var. americana V. Oswald; L. Ahart 1989-8-22 3953 Butte Summit Lake on the n slope of Snow Mtn, ca. 4 mi (air) se of Jonesville. Along the nw edge of the lake. 1889 Comment
  CHSC34167  Symphyotrichum bracteolatum Lowell Ahart 1981-9-19 3179 Butte Along edge of Hwy 70, just a few feet N of Arch Rock Tunnel, ca. 10 m S of Storrie. 550 Comment
  JEPS115359  Symphyotrichum bracteolatum Lowell Ahart 2009-7-9 16026 Butte On the east side of the dirt road which is Ten Mile House Road, Upper Bidwell Park about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 236 Comment
  CAS-BOT-BC99040  Symphyotrichum cusickii E. B. Copeland 1930-8-26 487 Butte Jonesville 1500 Comment
  CAS-BOT-BC98058  Symphyotrichum lentum John Thomas Howell 1959-9-20 34685 Butte eastern outskirts of Oroville 60 Comment
  UC725487  Symphyotrichum subulatum A. A. Heller 1923-10-13 13828 Butte near Richvale Comment
  CHSC85441  Symphyotrichum subulatum var. parviflorum R. D. Fischer; Jenny Marr 2003-10-25 12 Butte Chico. Located in northeast corner of town on the west side of Ceanothus Ave, cross street Brenni. Along drainage channel. 70 Comment
  CHSC38727  Tamarix gallica Vernon Oswald 1983-4-24 361 Butte Upper bidwell Park, Chico, on the north edge of Chico Creek 100 ft E of Parking Area H at Day Camp. 91 Comment
  CHSC113661  Tanacetum parthenium L. P. Janeway 2014-5-29 11278 Butte Northern High Sierra Nevada. Plumas National Forest; at junction of Roads 18N18 and 19N40 (but 19N40 doesn't exist here anymore), 1.0 air-km north of top of Sunset Hill; upper slopes high above South Fork Feather River arm of Lake Oroville. 774 Comment
  CHSC32618  Tauschia kelloggii M. S. Taylor; L. Hanson 1981-3-31 3453 Butte Landing site on ridge. N side of spur rd, ca. 1/2 mi w of its jct with Ponderosa Way (Rim Rd, rd to Flea Valley), ca. 5 mi n of its jct with Hwy 70 at Jarbo Gap, ca. 18 air mi n of Oroville. 822 Comment
  CHSC34214  Tellima grandiflora M. S. Taylor 1981-4-28 3569 Butte N side of 23N28.2 at jct with Chino Creek, ca. 4 air mi e of Jarbo Gap on Hwy 70, ca. 23 air mi nw of Oroville. 853 Comment
  CHSC52371