Search Results — 2000 specimen records retrieved (1579 records with coordinates)
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CHSC110348  Abutilon theophrasti B. Castro 2006-8-10 1594 Butte Sacramento Valley. Ca 2.5 mi W of Hwy 99 and 1.2 mi SE of Richvale, and ca 0.5 mi E of the Midway. Near jcn of Cherokee Canal, Southern Pacific RR and the Biggs Extension canal, along edge of dirt road which crosses Cherokee Canal just N of the Biggs canal. 31 Comment
  UC870267  Acer glabrum var. diffusum A. A. Heller 1915-6-16 12025 Butte summit of the Sierra Nevada above Jonesville; summit of Sierra Nevada above Jonesville 2133 Comment
  CHSC97424  Acer glabrum var. torreyi Robert Fischer 2006-6-11 1015 Butte Butte Meadows. North-east corner of Butte County along county road 26N27 north of the Humboldt Road junction. 1676 Comment
  CHSC20965  Acer macrophyllum M. S. Taylor 1975-9-19 915 Butte Ca. 50 ft e of the Skyway, ca. 1/2 mi n of Magalia. 609 Comment
  CHSC3211  Acer negundo Susan Carrauthers 1966-6-18 159 Butte Next to nurses cottage beside the Chico State College football field on Warner St. City of Chico. Comment
  CHSC63803  Achillea millefolium S. C. Morey 1983-7-28 634 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  CAS-BOT-BC210631  Achnatherum lemmonii Lowell Ahart 1983-6-15 4054 Butte Along edges of Honcut Creek. Peter Ahart Ranch, ca. 1.5 mi. N and 3 mi. E of Honcut 50 Comment
  JEPS108542  Achnatherum lemmonii L. P. Janeway 2006-5-28 8638 Butte Northern High Sierra Nevada. Open serpentine bowl on west side of Concow Road about 3.2 mi northeast of the upper end of Concow Reservoir 856 Comment
  UC1609076  Achnatherum occidentale subsp. californicum Lowell Ahart 1993-6-26 7019 Butte 1 mi w Lost Creek Reservoir (e side of the dirt road); Mooreville Ridge 1188 Comment
  CAS-BOT-BC218045  Achnatherum stillmanii Lowell Ahart 1980-6-22 2446 Butte 1 mile NE of Woodleaf 1000 Comment
  SEINET11838910  Achyrachaena mollis Unknown 1978-1 13 Butte Small population ca 2 mi N of Chico on State Hwy. 99 67 Comment
  UC88434  Achyrachaena mollis R. M. Austin Apr 1 1896-Jan 1 1900 799 Butte Plains Comment
  CHSC113917  Acmispon brachycarpus Lowell Ahart 2014-5-13 19457 Butte North of a small drainage, below the high water line of Lake Oroville, about 250 yards southeast of the trail, trail starts at the parking area at the Enterprise Boat Launch Area, about 11 miles (air) east of Oroville. 241 Comment
  CHSC50038  Acmispon brachycarpus Lowell Ahart 1990-4-15 6465 Butte Below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/8 mile north-west of Oroville. 289 Comment
  JEPS120584  Acmispon brachycarpus Lowell Ahart 2013-11-18 19281 Butte Below the high-water line of Lake Oroville, about 150 yards northeast of the boat ramp at the end of Stringtown Road, about 50 yards north of the road, about 2.5 air miles northeast of Hurleton. Comment
  CHSC39345  Acmispon glaber Lowell Ahart 1983-6-26 4147 Butte Along Ponderosa Way, about 1 mile south-east of the East Fork of Canyon Creek, about 14 miles north-east of Oroville. The sign gives Big Ridge Road insead of Ponderosa Way. 575 Comment
  CHSC46835  Aconitum columbianum var. columbianum Kirsten Tarp 1983-8-12 344 Butte Philbrook Reservoir, on edge of meadow. 1706 Comment
  CAS-BOT-BC412866  Aconogonon davisiae E. B. Copeland 1931-6-19 629 Butte Jonesville 2100 Comment
  CHSC46836  Actaea rubra Kirsten Tarp 1983-8-6 332 Butte N part of county, ca. 0.9 mi w of Cherry Hill; at edge of meadow. 1417 Comment
  RSA4155  Adenocaulon bicolor E. B. Copeland 1930-8-9 s.n. Butte Jonesville 1500 Comment
  CAS-BOT-BC133127  Adenostoma fasciculatum Ella Dales Cantelow 1940-5-10 4293 Butte E. of Oroville, Old road to Bucks Lake Comment
  SEINET10529974  Adiantum aleuticum Mary Susan Taylor 1976-5-5 Taylor 1117 Butte Abundant along or near in drier areas of Bear Creek, ca. 500 ft to 1/8 mi S of Hwy 70, ca. 30 mi NE of Oroville. Comment
  SEINET11708232  Adiantum jordanii W. E. Spoon 4 s.n. Butte no further locality Comment
  CDA42880  Aegilops triuncialis L. Ahart 2012-5-2 18093 Butte On the north side of the poor fence, near a large oak tree, about 40 yards east of the Guardian Trail, southeast part of Upper Bidwell Park, northeast of Chico. Comment
  UC1609239  Ageratina occidentalis Lowell Ahart 1993-9-8 7167 Butte on top of ridge about 1/2 mi e Snow Mountain; e of Snow Mountain 2103 Comment
  CAS-BOT-BC29495  Agoseris Clare B. Hardham 1978-4-17 21564 Butte Humbery Road north of Paradise Comment
  CHSC86134  Agoseris grandiflora John Dittes; Josephine Guardino 2002-6-21 619 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
  SEINET10475107  Agoseris heterophylla Lowell Ahart, James D. Jokerst 1985-3-24 Ahart 4866 Butte West of Lunt Road, about 1/2 mile north of the inter- section of Lunt Road and Highway 70, north of Yankee Hill. Comment
  SEINET10506789  Agrostis Mary Susan Taylor 1978-7-21 Taylor 1810 Butte On S side of Oroville-Quincy Hwy, along creek and in meadow, ca. 14 mi N of Lake Madrone, ca. 24 mi NE of Oroville; Yellow Pine Forest. 1463 Comment
  CAS-BOT-BC127370  Agrostis exarata John Thomas Howell 1973-7-9 49692 Butte Sierra Nevada. Northeast of Pulga Bridge, Feather River highway. 417 Comment
  CHSC36527  Agrostis exarata var. monolepis L. Ahart 1982-5-28 3440 Butte E of North Honcut Creek, near the Peter Ahart Ranch, ca. 1.5 mi n and 3 mi e of Honcut. 50 Comment
  JEPS113180  Agrostis hendersonii Lowell Ahart 2007-5-22 13899 Butte Along swales, on Big Bald Rock, about 14 miles (air) northeast of Oroville 955 Comment
  CHSC69119  Agrostis pallens Lowell Ahart 1997-8-1 7772 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
  JEPS98495  Agrostis pallens Lowell Ahart 2000-6-27 8517 Butte Big Bald Rock, about 3 miles (air) east of Madrone Lake, about 12 miles (air) northeast of Oroville. 993 Comment
  CAS-BOT-BC138772  Agrostis scabra A. A. Heller 1914-8-6 11647 Butte Chico Meadows. 1219 Comment
  CAS-BOT-BC138776  Agrostis scabra Lowell Ahart 1983-7-29 4220 Butte Sierra Nevada. Along the dirt road, ca. 2 miles south of Milsap Bar, ca. 23 miles northeast of Oroville. 750 Comment
  CHSC113464  Agrostis thurberiana Lowell Ahart 2014-7-7 19586 Butte West edge of the bog, Coon Hollow, about 2 miles (air) north of Philbrook Reservoir. 1690 Comment
  CHSC49494  Agrostis variabilis V. Oswald; L. Ahart 1988-8-16 3692 Butte Ca. 5 mi (air) se of Jonesville on the ridge running eastwards from the peak of Snow Mtn. 2103 Comment
  CAS-BOT-BC138422  Aira caryophyllea Lowell Ahart 1980-5-4 2165 Butte Thermalito. 65 Comment
  SACT000327  Aira elongata Herbert Copeland 1930-7-25 Butte in meadow below cabin 1500.0 Comment
  CAS-BOT-BC131913  Allium Lowell Ahart 1978-5-24 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CHSC101291  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
  CHSC51934  Allium amplectens E. Ray Latham 1988-4-21 Butte 100 m E of the E end of Fremont St, Chico. 30 Comment
  HSC39466  Allium amplectens J. P. Smith, J. O. Sawyer 1973-4-14 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  UCD73057  Allium amplectens 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-BC460735  Allium amplectens Lowell Ahart 1980-5-25 1330 Butte Along Hurleton-Swedes Flat Road. Comment
  CDA39428  Allium amplectens L. L. Heinricks 1974-5-2 s.n. Butte On both sides of Wilbur Road. 0 Comment
  SEINET8112090  Allium amplectens W. Roderick 1967-4-15 s.n. Butte SW of Paradise. 457 Comment
  CHSC36903  Allium campanulatum R. A. Schlising; R. Banchero 1980-7-11 3885 Butte NE part of county at s ecd of Walker Plains; along Oroville-Quincy Hwy. 1536 Comment
  UC725433  Allium campanulatum A. A. Heller 1938-5-28 15113 Butte 22 mi from Oroville (along the Feather River Highway e side of Jarboe Pass); Feather River Highway, Jarboe Pass 609 Comment
  CAS-BOT-BC135816  Allium jepsonii L. P. Janeway 1993-7-2 4423 Butte Along Rd 22N84 0.45 mi west of Stony Creek and 1.45 mi west of Rd 23N28 (the road from Swayne HIll to Big Bar Mtn.) - Plumas National Forest, Oroville Ranger District 926 Comment
  CHSC62600  Allium jepsonii B. Castro 1993-7-13 487 Butte Ca. 2.5 mi SSW of Big Bar Mtn, on gentle SSE-facing slope on the N side of USFS rd 22N84. 944 Comment
  JEPS109801  Allium jepsonii Dean W. Taylor 2004-6-17 19110 Butte Rocky Ridge, north side Feather River Canyon, Forest Road 23N06B under the electrical transmission line 899 Comment
  CAS-BOT-BC472971  Allium membranaceum Lewis S. Rose 1937-6-10 37371 Butte Forbestown 838 Comment
  SEINET10471986  Allium obtusum Mary Susan Taylor 1980-5-27 Taylor 2695 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
  UC1299737  Allium obtusum Freed W. Hoffman 1951-5-1 3773 Butte on ridge before reaching Little Butte Creek (on road from Magalia to Lovelock at Mosquito Creek); Mosquito Creek 792 Comment
  CHSC115403  Allium obtusum var. obtusum M. Rogers 2013-4-16 Butte On the summit of Big Bald Rock. 944 Comment
  CHSC35996  Allium obtusum var. obtusum J. D. Jokerst; R. A. Schlising 1982-5-19 1573 Butte Top of Lumpkin Ridge NE of camp 18. 1280 Comment
  CHSC46070  Allium obtusum var. obtusum J. D. Jokerst; R. Schlising, M. Foster 1983-5-24 1781 Butte At the summit of Bald Rock Dome (Middle Fork Feather River) at its south edge. Comment
  CHSC63486  Allium sanbornii var. sanbornii Lowell Ahart 1994-7-28 7526 Butte On the south side of Bean Creek Road, about 1/2 mile south-east of Little Bald Rock. 914 Comment
  UC1133834  Allium sanbornii var. sanbornii P. L. Johannsen 1936-7-29 970 Butte 1 1/2 mi n Junction of Butte and Secret Creeks; Paynes Creek Quadrangle Comment
  CHSC34800  Alnus incana subsp. tenuifolia M. S. Taylor 1981-5-13 3698 A Butte On e side of 23N15.5 ca. 1 mi s of its jct with Four Trees Rd, ca. 8 air mi e of Pulga and 1/2 mi w of Oroville-Quincy Hwy. 1371 Comment
  CHSC5944  Alnus rhombifolia M. MacArthur 1968-6-17 174 Butte Location: Hanging over SW edge of Big Chico Creek Ne of Dining Hall, Chico State College Campus. 60 Comment
  UC436297  Alopecurus aequalis E. B. Copeland August, 1930 Butte above Jonesville Jonesville 1650 Comment
  CAS-BOT-BC138039  Alopecurus carolinianus Lowell Ahart 1977-6-2 s.n. Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC113278  Alopecurus carolinianus Lowell Ahart 2014-4-26 19417 Butte Sides of a cleaned ditch, on the south side of Butte City Highway (Highway 162), collected from the railroad to the east about 200 yards, east of the Rice Experimental Station. 30 Comment
  CHSC8196  Alopecurus saccatus D. McClain 1969-4-18 59 Butte 1/2 mi. n.w. of gate on Table Mountain, 5 mi. s.w. on Cherokee Rd. from its junction with Feather River Highway. 487 Comment
  HSC86000  Alopecurus saccatus John E. Hunter 1986-3-30 41 Butte Ca. 1 km E Chico, 50 m S Hwy. 32. 75 Comment
  SEINET3450788  Alopecurus saccatus Unknown 2003-5-28 10235 Butte Oroville, Oroville, about 7 miles north, north Table Mountain, about 1.75 miles west of the iron gate and fence west of Cherokee Road, bottom of Hendricks ditch 270 Comment
  CHSC116126  Amaranthus albus Lowell Ahart 2015-11-7 20615 Butte Strand of Lake Oroville, on the east side of the old highway Alternate 40, about 1/4 mile south of the end of Alternate 40, Dark Canyon, about 4 miles (air) south of Highway 70, about 8 miles (air) southeast of Paradise. 236 Comment
  CHSC116132  Amaranthus californicus Lowell Ahart 2015-11-7 20616 Butte Strand of Lake Oroville, on the east side of the old highway Alternate 40, about 1/4 mile south of the end of Alternate 40, Dark Canyon, about 4 miles (air) south of Highway 70, about 8 miles (air) southeast of Paradise. 236 Comment
  CHSC66894  Amaranthus deflexus Vernon H. Oswald 1996-10-12 8299 Butte Chico, Sewer Ponds on Chico River Rd., ca. 4.5 mi W of Chico. 41 Comment
  CHSC95142  Amaranthus deflexus R. D. Fischer 2005-9-14 858 Butte Paradise, CA. Northern Sierra Nevada foothills, lower Paradise, at a residence on Black Olive Street. 365 Comment
  JEPS128595  Amaranthus deflexus Lowell Ahart 2017-8-1 21652 Butte Park west of railroad, northeast of the intersection of Virginia Street and Sycamore Street, in Gridley. Comment
  JEPS98337  Amaranthus palmeri Lowell Ahart 2000-7-23 8605 Butte 2 1/2 mi S of Durham (W edge and side of the Midway, N of Butte Creek) 45 Comment
  SEINET10478793  Amaranthus retroflexus Mary Susan Taylor Taylor 777 Butte Weedy or cultivated plants of Chico. 61 Comment
  JEPS117527  Ambrosia psilostachya Lowell Ahart 2010-9-13 17152 Butte Open dry areas, Oroville Wildlife Area, about 1/2 mile west of Pacific Heights Road, about 3 1/2 miles (air) northwest of Palermo 31 Comment
  CAS-BOT-BC142951  Amelanchier utahensis A. A. Heller 1915-6-11 11963 Butte Chico Meadows in the Sierra Nevada 1219 Comment
  CHSC113529  Ammannia coccinea Lowell Ahart 2014-9-23 19867 Butte Near a small drainage, on the northeast part of Horseshoe Lake, about 100 yards northeast of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. 88 Comment
  CHSC28935  Ammannia coccinea M. S. Taylor 1978-7-22 1851 Butte On se corner of Richvale East Rd and Erickson Rd, Richvale, in rice field. Comment
  SBBG119944  Ammannia coccinea L. Ahart 2006-8-5 13084 Butte Peter Ahart Ranch, ca. 1.5 mi N and 300 yards E of Honcut, ca. 12 mi S of Oroville 30 Comment
  CHSC46876  Ammannia robusta Vernon H. Oswald 1989-9-4 3976 Butte Wurlitzer Unit, Vina Plains Preserve. 56 Comment
  CHSC111158  Amorpha fruticosa Lowell Ahart 2012-6-9 18177 Butte On both sides of a small drainage, about 30 yards east of Ten Mile House Road, about 1/8 mile north of the old homestead, Upper Bidwell Park, about 9 miles (air) northeast of Chico. 269 Comment
  UC479936  Amsinckia eastwoodiae H. E. Brown Mar 3 1897-Mar 22 1897 168 Butte near Clear Creek 53 Comment
  JEPS117149  Amsinckia intermedia Lowell Ahart 2010-4-30 16600 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
  SEINET10969123  Amsinckia intermedia Mary Susan Taylor 1981-4-14 Taylor 3527 Butte T21N R3E se/ne sec 36, Cherokee quad. Valley Grassland, NW corner of the jct of Wheelock Rd and Hwy 70, ca. 5 mi N of Oroville. 450 ft. 137 Comment
  JEPS87496  Amsinckia lycopsoides Lowell Ahart 1993-5-13 6935 Butte 1 3/4 mi n and 1/8 mi e of Honcut (about 12 mi s of Oroville); Peter Ahart Ranch 30 Comment
  NY622098  Amsinckia nitidicaulis A. A. Heller 1918-4-10 12982 Butte At Chico; especially plentiful as a weed about the high school Comment
  CHSC71188  Anagallis arvensis Lowell Ahart 1998-6-30 8011 Butte North Table Mountain, about 7 miles (air) north of Oroville. Margins of a seep, southwest of the lone oak tree, west of the cow chute on the west side of Cherokee Road. 403 Comment
  CHSC28609  Andropogon glomeratus var. scabriglumis M. S. Taylor 1977-11-12 1532 Butte N side of Diversion Dam area, n side of Upper Bidwell Park Rd. Comment
  UCD56083  Andropogon virginicus Alva W. Mitchell 1957-9-25 s.n. Butte Butte County. Comment
  CHSC37126  Anemone oregana L. Ahart 1982-9-13 3829 Butte Along Pinkard Creek, ca. 1/8 mi n of Lost Creek Reservoir Dam, ca. 2.2 mi nw of Strawberry Valley. 1100 Comment
  CHSC97321  Anisocarpus madioides L. P. Janeway 2007-6-11 9038 Butte Northern High Sierra Nevada. Plumas National Forest; along Road 20N67 0.6 km northwest of Lumpkin Road, 2.3 km west of Feather Falls town site. 777 Comment
  POM147728  Antennaria argentea E. E. Stanford 1927-5-21 381 Butte 4 miles SE of Avery 1220 Comment
  CHSC34034  Anthoxanthum odoratum L. Ahart 1981-7-7 2915 Butte Ca. 1 mi s of the Oroville Forbestown Rd on the Hurleton Swedes Flat Rd. 600 Comment
  CHSC50018  Anthriscus caucalis Lowell Ahart 1990-4-8 6436 Butte On the east side of Pacific Heights Road, about 3 1/2 miles south-west of Oroville. 33 Comment
  CDA14088  Antirrhinum cornutum G. F. Hrusa, T. D. Wilfred 1997-7-3 13972 Butte Sierra Nevada; NE side of upper end of Paradise Lake. Comment
  CHSC30713  Antirrhinum cornutum M. S. Taylor 1980-7-6 3050 Butte Ca. 1 mi e of Meridian Rd, ca 1.25 mi ne of its jct with Hwy 99, ca. 8 mi n of Chcio. 67 Comment
  CHSC48969  Antirrhinum cornutum Vernon Oswald 1986-7-22 2216 Butte Hwy 32, 1.2 mi n of Chico Creek near the spring. 1097 Comment
  CHSC117333  Antirrhinum vexillocalyculatum subsp. intermedium L. P. Janeway 2016-8-8 12142 Butte Northern High Sierra Nevada. Plumas National Forest; about 300 m south of Road 22N27 (Lumpkin Ridge Road) at the southern end of Lumpkin Ridge. 1282 Comment
  CHSC101085  Aphanes occidentalis Lowell Ahart; John Dittes 2009-3-20 15504 Butte Open area along the the Guardian Rock Trail, about 150 yards southwest of the Ten Mile House Road Trail, about 300 yards west of Highway 32, west of the intersection of Highway 32 and Ten Mile House Road, Upper Bidwell Park, about 10 miles northeast of Chico. 407 Comment
  CHSC42440  Aphyllon purpureum Lowell Ahart 1987-5-12 5647 Butte South of Lumpkin Ridge Road, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 1280 Comment
  CHSC47451  Aphyllon purpureum Lowell Ahart 1974-3-18 332 Butte Near North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC104  Apocynum androsaemifolium 1954-5-30 Butte Kimshew Falls near Rag Dump 5, out from Stirling. 1097 Comment
  SD3750  Apocynum androsaemifolium E. B. Copeland 1930-7-7 Butte In shelter of rocks, Jonesville. Comment
  CHSC38261  Apocynum cannabinum Vernon Oswald 1983-8-19 1009 Butte Upper Bidwell Park, Chico, near the e end of Yahi Trail. 207 Comment
  UC175568  Apocynum cannabinum A. A. Heller 1913-6-4 10779 Butte Table Mt. Olive Ranch n. of Oroville; Table Mt. Olive Ranch Comment
  SEINET10536205  Aquilegia formosa var. truncata Mary Susan Taylor 1978-7-18 Taylor 1718 Butte On top of Humboldt Peak, at Humboldt Summit, on Butte-Tehama County line. 2159 Comment
  CHSC114947  Arabidopsis thaliana Lowell Ahart 2015-2-26 19940 Butte About 30 yards east of the old paved road (Bidwell Bar - Miners Ranch Road), strand of Lake Oroville about 1/4 mile north of Miners Ranch Reservior, about 4 miles East of Oroville. 218 Comment
  CHSC58257  Arabidopsis thaliana Lowell Ahart 1992-3-9 6737 Butte Below the high water line of Lake Oroville, about 1/6 mile east of the Enterprise Boat Launch Area, about 1/2 mile north-west of the Enterprise Bridge across Lake Oroville. 274 Comment
  POM219312  Arabis rectissima H. F. Copeland 1931-6-10 1518 Butte Jonesville. Gulch draining into Colby Canyon. 1524 Comment
  RSA4203  Arabis rectissima E. B. Copeland 1929-7-14 s.n. Butte Jonesville. 1550 Comment
  JEPS110080  Arabis rectissima var. rectissima Lowell Ahart 2006-7-16 12969 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
  SFV10923  Arbutus menziesii M. L. Vincent 1965-4-14 611 Butte Sierra Nevada Skyway, 1.5 miles north of Magalia. 760 Comment
  SEINET1912952  Arceuthobium abietinum R. L. Mathiasen 2010-1 1067 Butte Humboldt Summit 2020 Comment
  CHSC43229  Arceuthobium campylopodum Lowell Ahart 1987-9-18 5886 Butte About 1 mile southwest of the crossing across Fall River, about 1 mile north-east of Camp 18, north-east of Feather Falls. 1310 Comment
  CHSC24702  Arctostaphylos J. R. Nelson 1976-3-1 5 Butte 9 mi E of Chico on Hwy 32. 548 Comment
  CAS-BOT-BC24432  Arctostaphylos manzanita Lowell Ahart 1975-4-3 s.n. Butte Near Honcut. 76 Comment
  CHSC67934  Arctostaphylos manzanita James D. Jokerst; M. S. Taylor, L. Ahart 1983-1-17 1685 Butte Top of N. Table Mtn. at its NW corner. Township/Range 'center W edge Sect. 32'. Comment
  UCD52090  Arctostaphylos manzanita John Thomas Howell 1975-6-15 51095 Butte In Upper Sonoran Zone on volcanic rock; about 2 miles from Paradise on 'Skyway' to Chico. 396 Comment
  UCD52250  Arctostaphylos manzanita John Thomas Howell 1976-4-2 51567 Butte In Upper Sonoran Life Zone on volcanic rock; about 2 miles from Paradise on 'Skyway' to Chico. 396 Comment
  CAS-BOT-BC38828  Arctostaphylos manzanita subsp. manzanita Frances Brown 1935-2-11 s.n. Butte Durham Comment
  JEPS119509  Arctostaphylos manzanita subsp. manzanita Lowell Ahart 2012-3-2 17761 Butte About 200 yards north of Ten Mile House Road, about 200 yards west of Highway 32 about 9 miles northeast Chico. Comment
  JEPS119572  Arctostaphylos manzanita subsp. manzanita Lowell Ahart 2012-2-22 17736 Butte On the north side of Ten Mile House Road, about 1/2 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  UC195402  Arctostaphylos manzanita subsp. manzanita A. A. Heller 1914-1-10 11152 Butte e Chico; canyon of Big Chico Creek Comment
  SBBG128407  Arctostaphylos manzanita subsp. manzanita L. Ahart, J. Dittes, S. Green 2009-1-17 15468 Butte N side of Humboldt Trail, ca. 50 yards S of Guardian Rock Trail, upper Bidwell Park, ca. 300 yards W of Hwy 32 330 Comment
  CHSC3574  Arctostaphylos mewukka Judy Lee Potter 1966-2-26 Butte 5-6 miles north of Paradise (Magalia area). Comment
  SD60287  Arctostaphylos mewukka A. A. Heller 1928-2-27 14477 Butte Near Forest Ranch Comment
  UC481538  Arctostaphylos nevadensis H. F. Copeland 1930-7-28 Butte along So. Willow Creek Jonesville 1828 Comment
  UC481537  Arctostaphylos patula H. F. Copeland 1924-8-11 223 Butte Jonesville Comment
  SEINET10449339  Arctostaphylos viscida Mary Susan Taylor 1981-3-18 Taylor 3430 A Butte T23N R4E east center third sec 30 Paradise SE quad; Open serpentine ridge nnw of Sawmill Peak, off Ponderosa Way (Jordan Hill Rd), ca. 1 air mi ne of Magalia; 2300-2400 ft. 701 Comment
  SEINET10940282  Arctostaphylos viscida Mary Susan Taylor 1981-2-11 Taylor 3376 Butte T19N R6E sw sec 8. Big Bend quad. E side of Lumpkin Rd, along Macabes Creek, 2 mi n of jct of Lumpkin Rd & Oroville-Quincy Hwy (162), ca. 13 mi ne of Oroville. Riparian Wdlnd; 1500 ft. 457 Comment
  CAS-BOT-BC47370  Arctostaphylos viscida subsp. viscida John Thomas Howell 1975-6-15 51104 Butte about 2 miles from Paradise on Skyway to Chico 396 Comment
  CAS-BOT-BC47391  Arctostaphylos viscida subsp. viscida Lowell Ahart 1975-4-5 s.n. Butte Near Honcut. 36 Comment
  CAS-BOT-BC47392  Arctostaphylos viscida subsp. viscida M. S. Taylor; T. Devine; M. Merryman 1981-11-2 3376 Butte Bigi Bend Mt. Quad. East side of Lumpkin Rd., north of Macabes Creek. 91 Comment
  CAS-BOT-BC48252  Arctostaphylos viscida subsp. viscida Carl B. Wolf 1937-3-29 8339 Butte Sierra Nevada Foothills, 3 1/2 mi. below Magalia on Oroville Road. 487 Comment
  CAS-BOT-BC48283  Arctostaphylos viscida subsp. viscida Lowell Ahart 1975-3-27 s.n. Butte Swedes Flat road, near Bangor. 304 Comment
  CHSC108865  Arctostaphylos viscida subsp. viscida Lowell Ahart 2012-3-2 17763 Butte About 200 yards north of Ten Mile House Road, about 200 yards west of Highway 32, about 9 miles northeast of Chico. 422 Comment
  CHSC109108  Arctostaphylos viscida subsp. viscida Lowell Ahart 2012-3-2 17762 Butte About 200 yards north of Ten Mile House Road, about 200 yards west of Highway 32, about 9 miles northeast of Chico. 422 Comment
  RSA13427  Arctostaphylos viscida subsp. viscida H. F. Copeland 1932-6-24 A 3 Butte Humboldt Grade, about 12 mils from Chico. Comment
  UC1121438  Arctostaphylos viscida subsp. viscida J. E. Sowder 1933-6-20 89 Butte 1 1/2 mi se Paradise; Chico Quadrangle Comment
  CHSC35046  Arenaria kingii var. glabrescens R. A. Schlising 1981-6-20 4101 Butte NE part of county, E of Stirling City and E of Jones Meadow. 1767 Comment
  SEINET10507232  Aristida hamulosa Lowell Ahart 1983-8-16 Ahart 4277 Butte T22N R2E sec 14? Along Hwy 32, ca. 1 mi e of Chico. Valley Grassland; 100 m. 100 Comment
  CHSC78554  Aristida oligantha Vernon H. Oswald; Lowell Ahart 2000-8-22 9951 .2 Butte About 3 mi south of Brush Creek on the north side of Bean Creek Road at a point about midway between Little Bald Rock and Bald Rock Dome. 998 Comment
  CAS-BOT-BC400421  Aristolochia californica Mrs. C. C. Bruce 1897-3-1 1794 Butte Little Chico Comment
  CHSC10548  Aristolochia californica Lowell Ahart 1966-3-15 Butte Peter Ahart Ranch, Honcut. 42 Comment
  CHSC90109  Aristolochia californica Peggy Fain 1991-4-6 13 Butte Richardson Springs Road about 3 km from Cohasset Hwy. Near streambank, on fence by road. 152 Comment
  RSA416042  Aristolochia californica M. Vincent 1961-3-30 26 Butte Honeyrun road, 1/2 mile west of Paradise 579 Comment
  SEINET10475902  Aristolochia californica Mary Susan Taylor 1973-1 Taylor 49 Butte Upper Bidwell Park, Chico. Associates: Stipa pulchra, Lasthenia chrysostoma, Layia fremontii. 61 Comment
  SEINET10971029  Aristolochia californica Mary Susan Taylor 1973-1 Taylor 35 Butte Upper Bidwell Park, Chico. Associates: Stipa pulchra, Lasthenia chrysostoma, Layia fremontii. 61 Comment
  CHSC41410  Arnica dealbata Lowell Ahart 1986-7-2 5337 Butte In a clear cut, north of the dirt road, about 1/2 mile south-west of Bald Mountain, about 4 1/2 miles north-east of Stirling City. 1615 Comment
  CHSC46233  Arnica dealbata Pauleen Broyles 1987-7-5 1071 A Butte Ca 7 km n of Inskip and .4 km s of Bull Hill Road where it crosses Coon Creek. On n side of Coon Creek. 1530 Comment
  RSA123056  Arnica dealbata P. L. Johannsen 1936-7-16 928 Butte Bolt Creek. 1433 Comment
  RSA4178  Arnica discoidea E. B. Copeland 1929-7-23 s.n. Butte Jonesville. 1600 Comment
  CHSC11849  Artemisia douglasiana E. B. Copeland 1930-7-27 484 Butte Jonesville. 1550 Comment
  RSA0039299  Artemisia douglasiana Lowell Ahart 2008-7-23 15150 Butte On the north side of Ponderosa Way, north of the waterfall, about 1 mile (air) southwest of the Ponderosa Dam, about 2 1/4 miles (air) northwest of Forbestown. 482 Comment
  RSA769901  Artemisia douglasiana George K. Helmkamp, E. A. Helmkamp 2009-9-5 15573 Butte Lower Honcut Road, 0.8 mile east of its junction with CA-70, 2.5 mi. WSW (261 deg.) of Honcut, 6.6 mi. SE (116 deg.) of Gridley 27 Comment
  RSA794971  Artemisia douglasiana L. Ahart 2010-9-13 17153 Butte Oroville Wildlife Area, about 0.5 miles west of Pacific Heights Road, about 3.5 air miles northwest of Palermo. 32 Comment
  CAS-BOT-BC400635  Asarum hartwegii A. A. Heller 1919-5-18 13174 Butte Mosquito Creek between Appleton and Coutelence Comment
  SEINET10475947  Asarum hartwegii Mary Susan Taylor 1978-7-21 Taylor 1805 Butte On N and S side of Oroville-Quincy Hwy, ca. 9 mi N of Lake Madrone, ca. 19 mi NE of Oroville; Yellow Pine Forest. 914 Comment
  UC116650  Asarum lemmonii Mrs. R. M. Austin June 1896 153 Butte Lomo Comment
  CHSC20544  Asclepias cordifolia M. S. Taylor 1975-6-30 825 Butte Scattered on s side of Cohasset Rd, ca. 10 ft. s of Greenwood Store, Cohasset, ca. 18 mi ne of Chico. 853 Comment
  UC166407  Asclepias cordifolia Mrs. R. M. Austin May 1896 287 Butte Little Chico Creek Comment
  SEINET10870123  Asclepias cordifolia Mary Susan Taylor 1980-5-31 Taylor 2775 Butte T23N R4E sw sec 30. Magalia serpentine area, just E of Coutelenc Rd at its jct with the Skyway, Magalia; Yellow Pine Forest. With R.A. Schlising and L. Ahart. 610 Comment
  CHSC66430  Asclepias speciosa Vernon H. Oswald; Lowell Ahart 1996-6-10 7749 Butte Sacramento National Wildlife Refuge, Llano Seco Unit. Near a U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. 28 Comment
  CHSC80584  Asclepias speciosa Lowell Ahart 2001-6-1 8748 Butte South side of Biggs Princeton Road, about 1 mile east of Butte Creek, about 7 1/2 miles west of Biggs. 21 Comment
  UC474224  Aspidotis californica H. F. Copeland March, 1926 Butte near Chico (Iron Canyon) Comment
  CHSC25358  Aspidotis densa Marc P. Hayes 1977-4-22 8 Butte Ca. 0.8 km sw of Pulga, 120 m n of North Fork of Feather River, along Pulga Rd., ca. 100 m from junction with Hwy 70. 495 Comment
  CHSC75437  Aspidotis densa G. F. Hrusa; T. D. Wilfred 1997-5-8 13748 Butte Above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. [Lat./Long. on label is '39 51 N, 121 34 W']. 740 Comment
  LA210509  Aster alpigenus var. andersonii E. B. Copeland; 1930-7-26 486 Butte Jonesville 1550.0 Comment
  POM219492  Aster eatonii H. F. Copeland 1927-9-2 407 Butte Jonesville. Comment
  CHSC40605  Astragalus gambelianus Ahart; Jokerst 1985-3-24 4851 Butte Serpentine Point, west of Yankee Hill. 550 Comment
  CHSC826  Astragalus gambelianus A. Koopman 1929-3-28 Butte Chico Country Club road. 152 Comment
  SEINET7042706  Astragalus gambelianus A. G. Vestal 1963-5-9 s.n. Butte Route 99E 11.8 miles north of Chico. Nelson quadrangle UTM Zone 10, 605211mE, 4382252mN. Comment
  CAS-BOT-BC69540  Athyrium alpestre subsp. americanum V. Oswald; L. Ahart 1988-7-29 3651 Butte Ca. 5 mi. (air) se. of Jonesville on the ridge running eastwards from the peak of Snow Mtn. 2097 Comment
  CAS-BOT-BC17449  Athysanus pusillus Lowell Ahart 1973-3-7 s.n. Butte Honcut. Peter Ahart Ranch. 150 Comment
  CHSC42512  Athysanus pusillus Lowell Ahart 1987-5-22 5665 Butte 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
  CHSC61028  Atriplex cordulata Vernon H. Oswald 1993-7-29 5728 Butte Gray Lodge Wildlife Management Area W of Gridley, W side of levee road ca. 100 ft S of Parking Lot 5 on Rutherford Rd., 0.5 mi W of Pennington Rd. 21 Comment
  CHSC34024  Atriplex lentiformis L. Ahart 1981-7-26 3008 Butte A little e of the dirt rd, ca. 1 mi nw of Pennington Rd, on the n branch rd that leads to hunter parking areas, ca. 1/2 mi ne of the Graylodge Waterfowl Mgmt HQ, ca. 12 mi sw of Gridley. 35 Comment
  JEPS90589  Atriplex minuscula Dean W. Taylor 1993-8-31 14076 Butte 120 m s Rutherford Road (and (as depicted on the refuge map) public shooting parking lot no. 5, ca. 1.5 mi e of refuge headquarters); Sacramento Valley, Pennington 7.5' USGS 21 Comment
  CHSC34125  Atriplex serenana L. Ahart 1981-9-10 3145 Butte Near the entrance to the Graylodge Waterfowl Mgmt HQ, w of Pennington Rd, ca. 12 mi sw of Gridley. 35 Comment
  CHSC4416  Avena fatua J. Francis 1966-5-9 Butte Vacant lot at intersection of Arcadian and Mansion Ave., Chico. Comment
  RSA713001  Avena fatua L. Ahart 2005-12-11 12515 Butte Rice Experiment Station, between the Main Ditch and Stine lateral, on the north side of Hamilton Road, about 1/4 mile east of Riceton Highway, about 2 1/4 miles (air) east of Biggs. 30 Comment
  SEINET3875617  Azolla filiculoides Lowell Ahart 1990-5-20 6473 Butte About 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville.; 0 30 Comment
  UC893677  Baccharis salicifolia subsp. salicifolia A. A. Heller 1914-3-28 11241 Butte 12 mi se of Chico; Dry Creek Comment
  CHSC55061  Bacopa eisenii Lowell Ahart 1991-9-24 6730 Butte At the Rice Experiment Station, south of Highway 162, about 3.5 miles north-west of Biggs. 30 Comment
  CAS-BOT-BC16377  Barbarea orthoceras Lowell Ahart 1987-5-6 5565 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles southeast of Jarbo Gap. 271 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
  CHSC30034  Barbarea orthoceras L. Ahart 1980-5-19 2314 Butte Along the edges of the South Fork of the Feather River, near bridge, ca. 1/8 mi n of the Golden Trout Crossing, ca. 5 mi w of the Sly Creek Dam. 800 Comment
  CHSC48288  Bassia hyssopifolia Vernon Oswald 1983-6-28 780 Butte Graylodge Waterfowl Management Area near Parking Lot 16. Comment
  CHSC40919  Berberis aquifolium var. dictyota Lowell Ahart 1970-4-5 41 Butte Along Robinson Mill Road, north-east of Bangor. 457 Comment
  NY31002  Blennosperma californicum A. A. Heller 1914-2-16 11180 Butte Hills twelve miles from Chico on the Chico-Oroville road Comment
  CHSC46283  Boechera arcuata Vernon Oswald 1989-5-25 3785 Butte Railroad between Pulga and Mayaro. On the river side of the RR between Dogwood and Camp Creeks. 438 Comment
  CAS-BOT-BC14300  Boechera platysperma E. B. Copeland 1931-6-19 643 Butte Jonesville. 1550 Comment
  UC955481  Botrychium multifidum Miss Margaret Hyatt Sep 1914 Butte Jonesville Comment
  UC955483  Botrychium multifidum Mrs. Carlotta C. Hall 1914-7-25 9780 Butte Jonesville 1554 Comment
  CHSC48895  Boykinia occidentalis Vernon Oswald 1984-7-25 1629 Butte Upper Bidwell Park, Chico, ca. 200 ft w of Day Camp on the s side of Chico Creek. Growing on a vertical sandstone cliff 8 ft above the summer level of the creek. 91 Comment
  CAS-BOT-BC145681  Brachypodium distachyon John Thomas Howell 1959-9-20 34691 Butte Sierra Nevada. 7 miles northeast of Oroville on Feather River Highway. Comment
  CHSC110143  Brachypodium distachyon L. P. Janeway 2012-5-2 10811 Butte Cascade Range Foothills. Upper Bidwell Park, Chico; southeast-facing slope +-overlooking Bear Hole on Big Chico Creek, between Middle Trail and Upper Trail. 166 Comment
  CHSC39510  Brachypodium distachyon Lowell Ahart 1983-6-21 4062 Butte Along the edge of Bloomer Hill Road, 1/8 mile west of the Oroville Quincy Highway, 1 1/4 miles south of the Berry Creek School, north-east of Oroville. Section 5. 400 Comment
  JEPS103476  Brachypodium distachyon Lowell Ahart 2002-5-7 9634 Butte High banks of a pond, at the beginning of a SE branch of Schirmer Ravine, ca 50 yards E of the pond on the E side of Cherokee Road, North Table Mountain, ca 4 miles (air) N of Oroville. 228 Comment
  JEPS115997  Brachypodium distachyon Lowell Ahart 2009-6-3 15821 Butte About 100 yards west of the table at the old homestead and about 50 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 232 Comment
  CHSC43959  Brassica rapa Vernon Oswald 1988-6-2 3350 Butte Soda Springs Campground on the e side of Hwy 32 n of Lomo. On the edge of Cascade Creek at the campground. 1139 Comment
  CHSC109783  Brickellia californica Lowell Ahart 2012-10-20 18496 Butte About 50 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. 68 Comment
  CHSC116975  Briza maxima Matthew Forster 2013-5-14 Butte Oroville Spillway, off Oro Powerhouse Rd., adjacent to Oroville Sspillway. 118 Comment
  HSC102688  Briza maxima J. P. Smith 2013-5-5 13702 Butte Just west of the junction of Pentz Road with Durham-Pentz Road. 201 Comment
  CHSC81426  Briza minor J. Trizzino 2001-4-30 66 Butte Upper Bidwell by Horseshoe Lake along seasonal creek drainage. 109 Comment
  CAS-BOT-BC482212  Brodiaea californica subsp. californica C. C., Mrs. Bruce 1893-5-1 2126 Butte 1.7 mi. se. of Big Butte Creek, U.S. Hwy. 99 E Comment
  CAS-BOT-BC482216  Brodiaea californica subsp. californica A. A. Heller 1938-5-22 15106 Butte Plentiful near Chico airport Comment
  CHSC38763  Brodiaea californica var. californica Vernon Oswald 1983-6-2 610 Butte Upper Bidwell Park, Chico, along Yahi Trail e of Brown's Hole. 207 Comment
  SEINET10570589  Brodiaea capitata Mrs. R. M. Austin 1896-3-1 Austin 40 Butte Little Chico Creek. Comment
  UC726235  Brodiaea elegans subsp. elegans A. A. Heller 1941-5-9 16105 Butte below Clear Creek School House (roadside banks along Clark Road to Paradise) Comment
  CHSC71203  Brodiaea minor Lowell Ahart 1988-6-9 7983 Butte West of Cherokee Road, about 50 feet southwest of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  JEPS7701  Brodiaea minor W. L. Jepson 1934-5-4 16622 Butte 2.5 mi ne Cana Comment
  UCD77176  Brodiaea minor Robert E. Preston 2002-6-28 1893 Butte Forbestown. 832 Comment
  POM264783  Brodiaea minor Lincoln Constance 1941-5-28 2825 Butte 3 miles SW of Paradise, Sierra Nevada foothills. 305 Comment
  UC143034  Brodiaea minor Mrs. R. M. Austin 1890-1 816 Butte e Chico Comment
  SEINET3885151  Brodiaea multiflora D. W. McNeal, Todd McIntyre 1989-4-18 3368 Butte Along the rd. bank beside Hwy. #70. 4.5 mi. s. of the jct. of Hwy #162 in Oroville.; 0 Comment
  CHSC81329  Brodiaea nana J. Trizzino 2001-4-25 56 Butte Oro-Chico Highway, 0.5 mi east of Mesa Drive, south side of road. 53 Comment
  SEINET10533863  Brodiaea volubilis A. Arthur Heller 1913-3-28 Heller 10765 Butte Ditch along Table Mountain 8 miles north of Oroville. 600 feet. Comment
  SEINET10508554  Bromus alopecuros Lowell Ahart 1985-5-9 Ahart 4939 Butte Peter Ahart Ranch, about 1 mile north and 1/4 mile east of Honcut, about 12 miles south of Oroville. Comment
  CHSC44451  Bromus carinatus Lowell Ahart 1988-6-23 6073 Butte South of the intersection of Black Bart Road and Forbestown Road, about 1 miles west of Robinson Mill Road. 670 Comment
  JEPS106210  Bromus carinatus var. carinatus Lowell Ahart 2004-6-2 10989 Butte Near a small meadow, on the east side of a logging road, on the north side of Forbestown Road, about 200 yards east of the intersection of Black Bart Road and Forbestown Road, about 3 1/4 miles (air) southwest of Forbestown 752 Comment
  JEPS106265  Bromus carinatus var. carinatus Lowell Ahart 2004-7-23 11301 Butte On the east side of the road, north of the West Branch Campground, south of the Bridge across the West Branch of the Feather River, about 1 1/2 miles (air) west of Philbrook Reservoir Dam, about 3 3/4 miles (air) southeast of Butte Meadows 1456 Comment
  JEPS110192  Bromus carinatus var. carinatus Lowell Ahart 2006-7-16 12976 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
  CDA31935  Bromus catharticus L. Ahart 2009-5-8 15666 Butte On the south side of the gravel road, about 10 yards east of Cedar Grove Parking Area in Lower Bidwell Park, Chico. Comment
  JEPS103569  Bromus catharticus Lowell Ahart 2002-4-15 9493 Butte On a canal bank, on the W side of Faris Road, 3 miles W of West Biggs Gridley Road, ca 3 miles (air) SW of Biggs. 24 Comment
  JEPS106156  Bromus catharticus Lowell Ahart 2004-8-30 11399 Butte In a walnut orchard, on the north side of O'Brien Road, about 100 yards east of Gilstrap Avenue, about 1 1/2 miles (air) southeast of Gridley 28 Comment
  CAS-BOT-BC155946  Bromus commutatus Lowell Ahart s.n. Butte 2 miles southeast of Paradise. 500 Comment
  CHSC56624  Bromus diandrus T. B. Devine 1980-3-10 605 Butte Chico Sewage Treatment Plant. Comment
  HSC32411  Bromus diandrus Dave Knorr 1974-4-20 120 Butte On Pentz Rd. near intersection with Clark Rd. Comment
  CAS-BOT-BC155463  Bromus hordeaceus John Thomas Howell 1967-6-22 42631 Butte Sierra Nevada. Magalia. 701 Comment
  UC1131072  Bromus hordeaceus C. G. Albertus 1933-6-6 20 Butte 1/4 mi w of Pentz 137 Comment
  JEPS106269  Bromus inermis subsp. inermis Lowell Ahart 2004-7-23 11307 Butte On the west side of Philbrook Reservoir Road, about 20 yards south of the bridge across the West Branch of the Feather River, about 1 1/2 miles (air) northwest of Philbrook Reservoir Dam, about 3 3/4 miles (air) southeast of Butte Meadows 1507 Comment
  CAS-BOT-BC162467  Bromus laevipes Lowell Ahart 1982-9-13 3806 Butte Sierra Nevada. Along the edges of a small wash that flows into Pinkard Creek, ca. 1/8 mile north of the Lost Creek Res. Dam, ca. 2.15 miles northwest of Strawberry Balley. 1100 Comment
  CAS-BOT-BC162468  Bromus laevipes Lowell Ahart 1983-6-21 4058 Butte Along Bloomer Hill Road, ca. 1/8 mile west of the Oroville Quincy Highway, 1.25 mile south of the Berry Creek School, northeast of Oroville. Sec. 5. 400 Comment
  CHSC37091  Bromus laevipes L. Ahart 1982-9-13 3806 Butte Along edges of wash that flows into Pinkard Creek, ca. 1/8 mi n of Lost Creek Reservoir Dam, ca. 2 and 1/8 mi nw of Strawberry Valley. 1100 Comment
  CHSC39518  Bromus laevipes Lowell Ahart 1983-6-15 4056 Butte On the high banks of North Honcut Creek, above the high water line, Peter Ahart Ranch, about 1 1/2 miles north and 3 miles east of Honcut. 50 Comment
  CHSC87913  Bromus laevipes Lowell Ahart 2004-5-27 10958 Butte On the east side of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 45 Comment
  SEINET10835094  Bromus laevipes Lowell Ahart 1982-9-13 Ahart 3806 Butte On damp soil along edges of small wash that flows into Pinkard Creek, ca. 1/8 mi N of Lost Creek Reservoir Dam, ca. 2.2 mi NW of Strawberry Valley. Scattered, not common. Yellow Pine Forest. 1100 Comment
  CHSC100992  Bromus madritensis subsp. madritensis L. P. Janeway 2008-4-2 9249 Butte Cascade Range Foothills. East edge of City of Chico; slope on north side of Humboldt Road 2.9 km northeast of Bruce Road. 167 Comment
  CHSC47607  Bromus madritensis subsp. madritensis Lowell Ahart 1972-4-18 85 Butte In a pasture field, Peter Ahart Ranch, about 1 1/2 miles north and 2 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC6750  Bromus madritensis subsp. madritensis Marilyn Lee 1968-5-3 157 Butte South side of Skyway, ca 6 miles E. of Chico. Comment
  CHSC4366  Bromus madritensis subsp. rubens J. Francis 1966-5-18 Butte Chico. On perimeter of pond n of golf course Bidwell Park. Comment
  UC1609036  Bromus orcuttianus Lowell Ahart 1993-7-22 7072 Butte about 5 1/2 air mi ne of Feather Falls (on w side of dirt rd about 1/2 mi nw of Camp 18) 1097 Comment
  SEINET10507343  Bromus sterilis Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4238 Butte T22N R6E sw sec 36. Ca. 0.5 mi e of Milsap Bar, ca. 25 mi ne of Oroville. Yellow Pine Forest; 500 m. 500 Comment
  CDA13291  Bromus suksdorfii G. F. Hrusa, T. D. Wilfred 1996-7-9 13139 Butte Plumas National Forest; Occasional individuals on dry, shaded slopes in coniferous understory above Jordan Creek S of Hwy 162 near Roger's Cow Camp. Comment
  CAS-BOT-BC161503  Bromus tectorum Javier Penalosa 1962-6-18 2463 Butte Near confluence of French and Peavine Creeks. 609 Comment
  CHSC36535  Bromus tectorum L. Ahart 1982-6-4 3531 Butte 1.5 mi e of Camp 18, ca. 8 mi e of Feather Falls. 1000 Comment
  UC1609481  Bulbostylis capillaris Lowell Ahart 1993-7-29 7117 Butte 2.5 mi ne Bald Mountain (about 6.5 mi ne of Stirling City) 1584 Comment
  CHSC59040  Calamagrostis canadensis Lowell Ahart 1992-7-21 6797 Butte On the sides of a snow lake, on the south side of Coon Hollow, about 2 (air) miles north-east of Philbrook Reservoir. 1737 Comment
  CHSC3559  Calandrinia ciliata R. D. Briggs 1966-3-6 68 Butte Road side, 1/4 mile due west of golf course club house in Bidwell Park, Chico. 91 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
  CHSC65898  Callitriche heterophylla var. bolanderi Vernon H. Oswald 1996-4-20 7410 Butte Sacramento Valley. Sacramento National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. In a drainage at the SW boundary of Tract 3.4, Sanctuary II. 32 Comment
  JEPS113280  Callitriche heterophylla var. bolanderi Lowell Ahart 2007-4-16 13672 Butte In shallow water of a small wash, about 100 yards east of North Honcut Creek, about 1 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles southeast of Oroville 63 Comment
  RSA726778  Callitriche heterophylla var. bolanderi L. Ahart 2007-4-16 13672 Butte About 1 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles southeast of Oroville. 63 Comment
  CHSC103742  Callitriche marginata Lowell Ahart 2010-5-16 16687 Butte About 1/4 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 371 Comment
  CHSC50826  Callitriche verna Vernon Oswald 1990-7-23 4380 Butte Butte Creek House Meadow Ecological Preserve, ca. 3.5 mi east-southeast of Jonesville. In a pool in the main meadow along the north branch of Butte Creek. 1780 Comment
  CHSC3306  Calochortus albus M. L. Hillier 1966-5-7 Butte 2.5 miles e. of covered bridge. Comment
  SEINET10872528  Calochortus albus Mary Susan Taylor 1980-4-27 Taylor 2567 Butte T22N R2E se sec 25. On S side of Humbug Rd, ca. 0.5 mi upstream from Honey Run Covered Bridge, ca. 7 mi E of Chico; Foothill Woodland on edge of Riparian Woodland. With J.D. Jokerst. 137 Comment
  CAS-BOT-BC491851  Calochortus luteus H. E. Brown; A. A. Heller 1902-5-8 5494 Butte Berry Canyon, Near Clear Creek Comment
  RSA377381  Calochortus luteus M. M. Boney 1897-1 s.n. Butte [No locality information provided] Comment
  CHSC11053  Calochortus monophyllus Lowell Ahart 1966-3-13 Butte Near Enterprise. 182 Comment
  UC119761  Calochortus monophyllus Mrs. R. M. Austin May 1883 191 Butte Little Chico Creek Comment
  RSA21945  Calochortus monophyllus H. C. Cantelow 1939-5-19 s.n. Butte Brush Creek Ranger Station. Comment
  SD6501  Calochortus monophyllus Mrs. R. M. Austin Jul 1879 Butte Sutton House. Comment
  SEINET8197472  Calochortus monophyllus M. J. Williams 1967-4-22 s.n. Butte Between Oroville and Feather Falls. 244 Comment
  UC119763  Calochortus monophyllus Mrs. R. M. Austin Apr 1896 Butte Baker Little Chico Creek Comment
  POM109549  Calochortus nudus C. C. Bruce 1897-06 54 Butte [no locality information provided] Comment
  POM109552  Calochortus nudus C. C. Bruce 1898-05 2405 Butte Dye place Comment
  RSA112700  Calochortus nudus E. K. Balls, Lee W. Lenz 1955-5-13 20698 Butte 7 miles northeast from Pentz Trading Station on road to U.S. Highway 40 alt. from Oroville-Magalia road 579 Comment
  CDA14083  Calochortus superbus G. F. Hrusa, T. D. Wilfred 1997-7-3 13967 Butte Sierra Nevada; NE side of upper end of Paradise Lake. Where last tributaries enter from E. Comment
  UCD139575  Calochortus superbus D. Finley 1998-5-2 2- 1 Butte 1 road mile north of Wick's Corner, along the east side of interstate 70 north. 91 Comment
  POM109542  Calochortus tolmiei C. C. Bruce 1898-05 2407 Butte [No locality information provided] Comment
  UC596512  Calycadenia fremontii R. F. Hoover 1937-5-19 2244 Butte 10 mi nw of Chico 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-BC273296  Calycadenia fremontii Marc Hayes; Joan Warner 1978-5-12 s.n. Butte North bank of Pine Creek about 11 miles nw. of Chico; ca. .3 mi W of Pine Creek's intersection w/ Hwy 99 (Wurlitzer Ranch) Comment
  CAS-BOT-BC270004  Calycadenia multiglandulosa Lowell Ahart 1989-7-4 6363 Butte Near a mined over area S of Oregon Gulch Road, about 0.25 mile NW of the Cemetery, about 1.25 miles W of Rocky Point, about 10 miles E and 3 miles N of Oroville 335 Comment
  CAS-BOT-BC106082  Calycadenia oppositifolia John Thomas Howell 1962-6-16 37623 Butte Nelson Bar - Sierra Nevada 213 Comment
  CAS-BOT-BC106086  Calycadenia oppositifolia David D. Keck 1933-5-31 2411 Butte 4.3 miles N. of Chico on Richardson Springs Road. Comment
  CAS-BOT-BC106122  Calycadenia oppositifolia Lowell Ahart 1988-7-29 6084 Butte North of Swedes Flat Road, about 1 mile east of Oroville Bangor Highway, about 5 miles north of Bangor 304 Comment
  CHSC27702  Calycadenia oppositifolia Robert A. Schlising 1978-6-11 3289 Butte Cohasset Road, near Cohasset and 5.5 mi above (NE of ) crossing of Mud Creek. Comment
  CHSC6141  Calycadenia oppositifolia J. Wheeler 1968-5-16 368 Butte NW side of Devil's Kitchen, Upper Bidwell Park. Comment
  JEPS22852  Calycadenia oppositifolia A. A. Heller 1938-5-22 15108 Butte near Chico airport Comment
  RSA32854  Calycadenia oppositifolia A. A. Heller 1938-5-22 s.n. Butte Near the Chico Airport Comment
  CHSC28681  Calycadenia spicata M. S. Taylor 1979-5-6 1998 A Butte Lowell Ahart Ranch, Honcut. 45 Comment
  CHSC45646  Calycadenia spicata Vernon Oswald 1988-6-4 3354 Butte Harter's Cherokee Ranch located on the W side of Hwy 99 between Hwy 149 and Dry Creek. 53 Comment
  CAS-BOT-BC270883  Calycadenia spicata Lowell Ahart 1980-7-4 2447 Butte Thermalito 65 Comment
  UC1953745  Calycadenia truncata R. L. Carr 1986-10-3 2266 Butte NE of Oroville, Olive Hwy (162, Oroville-Quincy Road), 3.6 mi NE of Forbestown Rd, ca. 0.5 mi N of Bidwell Bar Bridge Comment
  CAS-BOT-BC90923  Calycanthus occidentalis A. A. Heller 1915-5-17 11874 Butte Canon [Canyon] of Chico Creek 5 miles east of Chico. Comment
  CHSC116956  Calycanthus occidentalis Matthew Forster 2013-5-7 Butte Five Mile Recreation Area of Middle Bidwell Park, Upper Park Rd., Chico, CA 80 Comment
  CHSC117664  Calycanthus occidentalis Lowell Ahart 2016-8-30 21318 Butte In ravine on the north side of La Porte Road, about one mile west of Marysville Road, about 4 miles (air) southwest of Brownsville. 609 Comment
  RSA168723  Calycanthus occidentalis R. M. Straw 1962-6-26 2194 Butte Canyon of Middle Fork of the Feather River near Millsaps Bar. [Milsap Bar] 305 Comment
  UC426905  Calyptridium monospermum J. B. Copeland 1930-7-9 413 Butte Jonesville 1500 Comment
  CHSC45387  Calyptridium umbellatum Vernon Oswald 1984-7-2 1336 Butte Humbug Summit. Growing on forest floor along the road. 2320 Comment
  CHSC69112  Calyptridium umbellatum Lowell Ahart 1997-8-1 7789 Butte Around rocks, near some small streamlets of Little Kimshew Creek, in Snow Meadow, about 1/4 mile east of Table Mountain, about 8 miles (air) northeast of Stirling City. 1524 Comment
  CHSC54300  Calystegia atriplicifolia subsp. buttensis Vernon H. Oswald; Lowell Ahart 1991-6-5 4654 Butte Ca. 0.5 miles west of Hwy 32 on logging road 200-G, ca 1 mile north of Platte Mtn Lookout, between Forest Ranch and Lomo. 914 Comment
  SEINET10496583  Calystegia malacophylla Mary Susan Taylor 1978-7-19 Taylor 1769 Butte On E side of Upper Scotts John Road, ca. 3 mi N of its junction with Scotts John Road, ca. 7 mi E of Jonesville. 1890 Comment
  CHSC100834  Calystegia occidentalis M. S. Taylor 1982-6-24 4735 Butte At end of spur rd along Flea Mt Ridge, ca. 1.5 mi se of Flea Mt, ca. 9 mi ne of Jarbo Gap on Hwy 70. 1066 Comment
  JEPS95023  Calystegia occidentalis subsp. occidentalis Lowell Ahart 1997-7-11 7751 Butte about 2 air mi ne of Stirling City (s side of dirt road, se of Cold Creek, about 2 air mi sw of Bald Mountain, about 9 mi by road from Stirling City) 1219 Comment
  SEINET10462920  Campanula prenanthoides Edwin B. Copel 1930-8-4 Copeland 482 Butte JONESVILLE, SOIL EXPOSED BY SLIDE, IN SHADE 1500 Comment
  SEINET10463078  Campanula prenanthoides Mary Susan Taylor 1978-7-18 Taylor 1673 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
  POM196110  Cardamine breweri E. B. Copeland 1929-7-15 368 Butte Jonesville. 1500 Comment
  CAS-BOT-BC37374  Cardamine californica A. A. Heller 1919-3-29 13092 Butte Feather River near Yankee Hill. Comment
  CAS-BOT-BC37375  Cardamine californica Lowell Ahart 1975-4-1 s.n. Butte Sierra Nevada. About 5 miles northwest of Forbestown. 426 Comment
  CHSC96240  Cardamine californica var. californica R. Fischer 2006-3-17 983 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east -side addition along Hwy. 32. Plants growing along the south rim Trail ca. 200 yds south of the old cabin/pond site. 237 Comment
  CHSC101089  Cardamine oligosperma Lowell Ahart; John Dittes 2009-3-20 15505 Butte Open area along the Guardian Rock Trail, about 150 yards southwest of the Ten Mile House Road Trail, about 300 yards west of Highway 32, west of the intersection of Highway 32 and Ten Mile House Road, Upper Bidwell Park, about 10 miles northeast of Chico. 407 Comment
  CHSC28904  Cardamine oligosperma M. S. Taylor 1980-3-1 2341 Butte On north facing bluffs looking into Nance Canyon, ca. 1/4 mi n of Neal Rd, ca 3 mi e of its jct with Hwy 99, ca. 7 mi s of Chico. 121 Comment
  SEINET10448554  Cardamine oligosperma Mary Susan Taylor 1975-4-26 Taylor 521 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
  CHSC48551  Carex L. P. Janeway; R. A. Schlising, B. Castro 1988-7-23 3090 Butte Scotts John Cr 2.3 mi N of the Butte Cr Rd. 1889 Comment
  CHSC105671  Carex abrupta Lowell Ahart 2010-9-21 17200 Butte About 50 yards east of the poor dirt road, about 100 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1917 Comment
  CHSC52284  Carex abrupta L. P. Janeway 1987-6-26 2312 Butte Above Camp Cr, 2.5 mi E of Granite Ridge along road to Lynch and Logue Meadows. 1365 Comment
  CAS-BOT-BC18462  Carex abrupta L. P. Janeway; R. A. Schlising 1988-7-1 2937 Butte Willow Creek at crossing of Humbug Summit Road. 1874 Comment
  CAS-BOT-BC17630  Carex alma John Thomas Howell 1955-6-15 30473 Butte Paradise. 518 Comment
  CAS-BOT-BC17809  Carex amplifolia Lowell Ahart 1988-6-29 6100 Butte Along a small branch of Bean Creek, on the north side of Bean Creek Road, about 0.75 mile southeast of Little Bald Rock. 944 Comment
  CDA33018  Carex angustata L. P. Janeway 2003-6-8 7823 Butte High Cascade Range.; Flea Valley: meadow at head of Concow Creek. Comment
  CHSC88225  Carex angustata Lowell Ahart 2004-7-23 11310 Butte In a small bog, on the south side of the dirt road, about 200 yards east of the large bog, about 3/8 mile (air) east of Bald Mountain Lookout, about 4 1/4 miles (air) northeast of Stirling City. 1702 Comment
  CHSC94292  Carex angustata Lowell Ahart 2006-7-16 12974 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
  JEPS110403  Carex angustata Lowell Ahart 2006-8-15 13180 Butte North edge of a wet area west of a large open meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
  RSA4412  Carex athrostachya E. B. Copeland 1929-7-28 607 Butte Jonesville. 1500 Comment
  SEINET10585131  Carex athrostachya Lawrence P. Janeway 1986-1-1 Janeway 1821 Butte T25N, R4E, Jonesville quad (15') NE1/4 of sec. 13. N side of Philbrook Reservoir at main PG&E camp-ground. White fir dominated mixed conifer forest. Along edge of campground road. Comment
  CHSC44691  Carex aurea L. P. Janeway; R. A. Schlising, B. Castro 1988-7-23 3085 Butte Along Scotts John Cr 2.7 mi N of the Butte Cr rd. 1920 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
  CHSC89826  Carex barbarae L. P. Janeway; B. Castro 2004-6-13 8136 Butte Northern High Sierra Nevada. Along Old Forbestown Road 2.5 road km southeast of Forbestown Reservoir Road; 3.6 air km east of Forbestown; near headwaters of Costa Creek. South-facing slopes. Growing in and up out of dry shallow roadside ditch about 20 m away from small creek. 829 Comment
  CHSC52274  Carex bolanderi L. P. Janeway 1988-7-2 2951 Butte Marsh/meadow at upper reach of Brush Creek, ca 1.5 mi S of 'town' of Brush Creek. 952 Comment
  RSA718308  Carex bolanderi L. P. Janeway 2006-8-6 8827 Butte Near road along west side of lower Pinkard Creek, 1.2 road miles north of Lost Creek Reservoir dam. 1021 Comment
  UCD140161  Carex bolanderi L. P. Janeway 1987-6-13 2206 Butte Dogwood Creek along the road to Mayaro 2.4 miles east of the Concow Road. 990 Comment
  CHSC48541  Carex brainerdii L. P. Janeway 1987-5-28 2116 Butte Bank along 4 Trees Rd just N of Coyote Gap. 1310 Comment
  SD257095  Carex cyrtostachya Lowell Ahart 2000-7-7 8558 Butte On the north side of Lumpkin Ridge Road, upper west branch of Know-nothing Creek, ca. 1.0 mile southwest of the intersection of Lumpkin Ridge Road, road to Fall River and the County Road; Ca. 4.0 air miles northeast of Feather Falls. 1219 Comment
  SEINET10649718  Carex densa Lawrence P. Janeway 1987-4-14 Janeway 2002 Butte T19N, R3E, Oroville Quad, NW 1/4 of Sec 1. Thermalito Forebay State Park, Oroville. Along creek on north side of picnic area, ca 200 feet from the lake. 70 Comment
  SEINET7483993 Image available Carex echinata E. B. Copeland 1929-1 610 Butte Jonesville. 1500 Comment
  CHSC44995  Carex feta S. C. Morey 1983-7-23 579 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  CHSC44996  Carex feta S. C. Morey 1983-8-3 690 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  CAS-BOT-BC19998  Carex feta L. P. Janeway 1988-6-19 2823 Butte Along Honey Run Road 0.9 mile SW of Skyway. 411 Comment
  CHSC84751  Carex gracilior L. P. Janeway; John Hunt 2003-5-8 7782 Butte Sacramento Valley. North end of Chico; along Sycamore Creek 160 m west of Cohasset Road bridge. 56 Comment
  CHSC47056  Carex hirtissima L. P. Janeway 1989-5-17 3256 Butte Along rd to Forbestown Diversion Dam 2.2 mi from Forbestown Rd. 853 Comment
  JEPS121937  Carex integra Lowell Ahart 2014-7-7 19592 Butte On the south side of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  CHSC42690  Carex laeviculmis L. P. Janeway 1987-6-27 2342 Butte Along Little Kimshew Cr 0.7 mi north of the Concow Rd. 1508 Comment
  SEINET8068006 Image available Carex laeviculmis L. Janeway, Gog, L 2008-1 3189 B Butte Near Cornelia Lott San Memorial Spring. Comment
  CDA14081  Carex lemmonii G. F. Hrusa, T. D. Wilfred 1997-7-3 13964 Butte Sierra Nevada; NE side of upper end of Paradise Lake, where last tributaries from E enter. 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-BC32153  Carex multicaulis Lowell Ahart 1987-5-12 5642 Butte South of Lumpkin Ridge Road, 1.5 mi E of Camp 18, ca 8 mi NE of Feather Falls. 1280 Comment
  CHSC110450  Carex multicaulis L. P. Janeway 2013-5-16 11102 Butte Northern High Sierra Nevada. Plumas National Forest; mid-slope North Fork Feather River canyon +/- overlooking Arch Rock and the Hwy 70 rest area, along Camp Creek Road 5.4 road km northeast of Dixie Road. 702 Comment
  CAS-BOT-BC32161  Carex multicaulis L. P. Janeway 1987-6-13 2191 Butte Pulga quad, along Ponderosa Way (Rim Road) 2.5 mi NE of Jarbo Gap. 883 Comment
  CHSC49391  Carex multicostata L. P. Janeway; R. A. Schlising, B. Castro, F. Jay Fuller 1988-7-11 2993 Butte At Crane Valley (upper Big Kimshew Cr). 1569 Comment
  CHSC33861  Carex nudata J. D. Jokerst; M. S. Taylor, L. Ahart 1980-4-7 560 Butte Rocky Honcut Creek (upper) ca 100 ft. N of it's jct with Sweedes Flat Rd. (E of Rackerby, 10 mi SE of Oroville). Comment
  UC182750  Carex nudata A. A. Heller 1913-6-7 10818 Butte near Stirling (West Branch of the North Fork of the Feather River) 914 Comment
  CHSC105520  Carex pachystachya Lowell Ahart 2010-9-28 17271 A Butte On damp black soil, about 20 yards west of Big Kimshew Creek, in shade, others out in the open dry meadow, about 100 yards east of the poor dirt road, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrood Reservoir. 1886 Comment
  JEPS117597  Carex pachystachya var. pachystachya Lowell Ahart 2010-9-28 17271 A Butte On damp black soil, about 20 yards west of Big Kimshew Creek, in shade, others out in the open dry meadow, about 100 yards east of the poor dirt road, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrood Reserv 1886 Comment
  JEPS106493  Carex pendula L. P. Janeway 2004-6-20 8137 Butte Sacramento Valley. South end of Chico; along edge of Comanche Creek at the bicycle bridge (former railroad bridge) about 150 m southeast (upstream) of the Midway (road) bridge across the creek 59 Comment
  CHSC43952  Carex praegracilis Vernon Oswald 1988-5-17 3309 Butte South side of Hwy 149, 0.2 mi w of Hwy 70 at Wicks Corner. 79 Comment
  RSA754367  Carex praegracilis L. Ahart 2009-6-3 15824 Butte E side of Ten Mile House Road, Upper Bidwell Park, about 3/4 air miles W of Highway 32, about 10 miles NE of Chico. 236 Comment
  CAS-BOT-BC116735  Carex subfusca Herbert Faulkner Copeland 1932-7-14 s.n. Butte Jonesville, along ditches and in damp places. Comment
  SEINET10467125  Carex subfusca Lowell Ahart, Peter Ahart 1984-7-19 Ahart 4751 Butte Along the road, about 1 1/2 mile south-east of Bald Mountain, 1/4 mile east of Oak Point, about 5 miles north-east of Stirling City. 1500 Comment
  CAS-BOT-BC115304  Carex utriculata L. P. Janeway 1987-7-5 2460 Butte Open dryish meadow near Dresser Camp, 3.0 mi N of Jones Meadow, 1889 Comment
  CHSC94299  Carex utriculata Lowell Ahart 2006-7-16 13010 Butte Bog, in the 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
  CHSC100922  Carex vesicaria R. A. Schlising; Robert Preston 1982-8-26 4370 Butte Coon Hollow area, north of Philbrook Reservoir, and east of West Branch of the Feather River. 1737 Comment
  CHSC43870  Carex vulpinoidea Vernon Oswald 1987-6-5 2954 Butte East side of Sacramento River just n of Golden State Island (perhaps now technically in Glenn County because of shifting channel). 33 Comment
  CHSC109183  Castanea dentata Lowell Ahart; Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18001 Butte On the west side of the horse path, about 20 yards north of the paved park road,west of the old walnut orchard, south of Vallombrosa Avenue, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. 76 Comment
  SEINET10549992  Castilleja Mary Susan Taylor 1980-4-6 Taylor 2434 Butte T8N R5E ec border sec 3. Junction of Rocky Honcut Creek and Swedes Flat Rd, ca. 2 mi E of Oroville-Bangor Hwy, ca. 10 mi SE of Oroville. With L. Ahart & J.D. Jokerst. 366 Comment
  JEPS117245  Castilleja affinis subsp. affinis Lowell Ahart 2010-5-7 16630 Butte On the south side of Guardian Trail, about 1/4 mile west of Highway 32, Upper Bidwell Park, about 4 3/4 miles (air) northeast of Chico 277 Comment
  CHSC114973  Castilleja applegatei subsp. pinetorum Lowell Ahart 2015-4-18 20055 Butte On the east side of the road to Forbeestown Reservoir, about 1/4 mile southwest of the Forbestown Reservoir, about 3-1/2 miles (air) northeast of Forbestown. 573 Comment
  CHSC114978  Castilleja applegatei subsp. pinetorum Lowell Ahart 2015-4-13 20032 Butte Road cut, on the west side of Rim Road, about 1/4 mile north of Jrbo Gap, about 15 miles (air) north of Oroville. 730 Comment
  CHSC1697  Castilleja applegatei subsp. pinetorum M. Roberson 1956-5-21 Butte SW of Paradise, along Skyway. 426 Comment
  CHSC43191  Castilleja applegatei subsp. pinetorum Richard J. Slama 1981-4-20 8 Butte On s rim of canyon. Ca. 7 mi se of Chico, ca. 5 mi. e of hwy. 99 on Skyway rd. 243 Comment
  UC492737  Castilleja applegatei subsp. pinetorum H. F. Copeland 1929-6-10 1234 Butte Jonesville 1524 Comment
  UC492738  Castilleja applegatei subsp. pinetorum H. F. Copeland 1927-9-2 952 Butte Jonesville 1524 Comment
  SEINET10549333  Castilleja applegatei var. fragilis Mary Susan Taylor 1978-7-19 Taylor 1776 Butte On E side of Upper Scotts John Road, ca. 2 mi N of its junction with Scotts John Road, ca. 6 mi NE of Jonesville. 1890 Comment
  CHSC103961  Castilleja lacera Lowell Ahart 2010-5-7 16625 Butte On both sides of Guardian Trail, about 1/2 mile west of Highway 32, Upper Bidwell Park, about 4 1/2 miles (air) northeast of Chico. 238 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
  CHSC14024  Castilleja lacera D. B. Joley 1967-4-14 18 Butte Ca. 3 feet n of Cohasset Rd. and ca 2.7 mi e of corner Keefer and Cohasset Rds. 152 Comment
  CHSC33145  Castilleja lacera James D. Jokerst 1981-5-11 1310 Butte Top of Doe Mill Ridge. 457 Comment
  JEPS117246  Castilleja lacera Lowell Ahart 2010-5-7 16625 Butte On both sides of Guardian Trail, about 1/2 mile west of Highway 32, Upper Bidwell Park, about 4 1/2 miles (air) northeast of Chico 238 Comment
  POM193336  Castilleja tenuis E. B. Copeland 1930-7-24 470 Butte Jonesville. 1500 Comment
  CDA41389  Castilleja tenuis T. C. Fuller 1962-7-12 9170 Butte Road to Jonesville, 2 miles east of Butte Meadows. 0 Comment
  CAS-BOT-BC50779  Ceanothus integerrimus A. A. Heller; H. E. Brown 1902-5-7 5481 Butte Berry Canyon (Near Clear Creek) Comment
  CAS-BOT-BC50784  Ceanothus integerrimus Jean L. Pawek 1956-5-21 52 Butte Highway Alternate 40 609 Comment
  CAS-BOT-BC50785  Ceanothus integerrimus B. D. Stark 1929-7-26 598 Butte Pardise Comment
  CHSC11993  Ceanothus integerrimus E. B. Copeland 1929-7-14 383 Butte Jonesville. 1650 Comment
  UCR270589  Ceanothus integerrimus John F. Emmel 2001-7-24 1736 Butte 2.3 road miles southwest of Jonesville on road to Humbug Summit, near Cherry Hill Campground 1768 Comment
  RSA301112  Ceanothus integerrimus var. macrothyrsus D. C. Michener 1982-7-28 4138 Butte Foothill woodland on volcanic soils on both sides of 32, 8.3 miles NE of jct with 99 near Chico. Comment
  CAS-BOT-BC51732  Ceanothus lemmonii E. K. Balls; L. W. Lenz 1955-5-13 20688 Butte Yellow Pine F.; Paradise, on road from Oroville to Magalia 579 Comment
  CHSC4641  Ceanothus lemmonii R. Carter 1966-4-26 362 Butte Found ca. 10 mi. NE of Oroville along W side USFS road 21N40 to Bloomer Mt., growing along rocky roadside 1.4 mi. W from intersection with Oroville-Quincy Rd. 731 Comment
  JEPS97589  Ceanothus lemmonii R. D. Stone and W. B. Davilla 1984-4-21 596 Butte ca. 0.3 mi SE of De Sabla Powerhouse; Butte Creek drainage 609 Comment
  CHSC1516  Ceanothus prostratus 1937-4-1 Butte Paradise. 609 Comment
  SEINET194924  Ceanothus prostratus A. A. Heller 1941-6-22 16179 Butte Cohasset Comment
  UCR133599  Ceanothus prostratus E. B. Copeland 1930-7-7 425 Butte Jonesville 1600 Comment
  SEINET10493651  Ceanothus prostratus Mary Susan Taylor 1976-4-4 Taylor 1057 Butte Yellow Pine Forest, ca. 2 mi W of junc tion of Ponderosa Way and Hwy 32, ca. 5-15 ft S of Ponderosa Way, ca. 23 mi NE of Chico; with Sanicula bipinnata. 610 Comment
  JEPS117916  Celtis laevigata L. P. Janeway 2008-10-8 9603 Butte Upper Bidwell Park, Chico Cascade Range Foothills (north side of Big Chico Creek 455 m west of Day Camp) 91 Comment
  CHSC62507  Celtis sinensis B. Castro 1990-10-11 436 Butte Midway between Chico, Paradise, and Oroville, ca. 0.3 mi N of 'Pentz', N of jcn Pentz and Messilla Valley Roads. Occasional tree on E edge of Dry Creek. Three other similar trees by house ca 200 yds upstream. 121 Comment
  CHSC97032  Centaurea cyanus L. P. Janeway 2007-7-9 9111 Butte Northern High Sierra Nevada. Plumas National Forest; near Road 21N25 in the southeastern corner of Watson Ridge, 1.0 km north-northeast of the mouth of Kenebeck Creek at Fall River and Nelsons Crossing. 1128 Comment
  CHSC3231  Centaurea solstitialis Virginia Hagaman 1966-4-30 155 Butte Field 8.4 miles north of Chico on highway 32. Comment
  CHSC6085  Centaurea solstitialis B. Wilson 1968-5-17 203 Butte E of Broadway and First Street, Chico. 59 Comment
  CAS-BOT-BC281209  Centaurea stoebe subsp. micranthos W. Gilbert; R. Dodd 1970-7-22 s.n. Butte N side of Highway 32 W of California Forestry Station, Forest Ranch, NE of Chico Comment
  CHSC116729  Centaurium tenuiflorum Lowell Ahart 2016-5-25 20879 Butte On north side of water ditch, about 200 yards south of La Porte Road, about 1/4 miles southwest of the intersection of La Porte Road and Loma Rica Road. about 3 1/4 miles (air) northeast of Honcut. 44 Comment
  CHSC30783  Centaurium tenuiflorum M. S. Taylor 1980-7-5 3055 Butte Ca. 1 mi e of Meridian Rd, ca. 1.25 mi ne of its jct with Hwy 99, ca. 8 mi n of Chico. 67 Comment
  CHSC650  Centaurium tenuiflorum R. M. Staley 1952-7-4 Butte Honey Run. 304 Comment
  JEPS93821  Centaurium venustum Lowell Ahart 1998-7-1 8021 Butte about 7 air mi n of Oroville (nw of the Ione oak tree, about 1/8 mi nw of the cow chute on the w side of Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 403 Comment
  CHSC59505  Centromadia fitchii Lowell Ahart 1992-9-9 6921 Butte Below the high water line of Lake Oroville, about 1/2 mile south-east of Kunkle Reservoir. 243 Comment
  CHSC77992  Centunculus minimus Lowell Ahart 2000-5-13 8355 Butte On the margin of the Thermalito Afterbay, on the south side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 42 Comment
  JEPS98422  Centunculus minimus Lowell Ahart 2000-5-13 8355 Butte 5 air miles SW of Oroville (Thermalito Afterbay, S side of access road to the boat ramp, W of Larkin Road, 1 1/4 mi S of Oroville Airport) 42 Comment
  CAS-BOT-BC222892  Cephalanthus occidentalis Lowell Ahart 1973-8-13 s.n. Butte Peter Ahart Ranch, Honcut 150 Comment
  CAS-BOT-BC222896  Cephalanthus occidentalis John Thomas Howell 1961-9-22 36764 Butte North Fork of Feather River, 10 miles from Oroville Comment
  CHSC78070  Cerastium glomeratum Megan Lee Hudzik 1998-4-16 22 Butte Bidwell Park, 50 m w of Horseshoe Lake, 6 miles of s Bidwell Mansio. In field. 91 Comment
  JEPS114730  Cerastium glomeratum Lowell Ahart 2008-5-12 14751 Butte Below the high water line of Lake Oroville, on the east side of Sucker Creek, about 100 yards north of where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam 258 Comment
  JEPS115843  Cerastium glomeratum Lowell Ahart 2009-4-22 15604 Butte West side of the Guardians Trail, along the small drainage, just north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  RSA31118  Cercis occidentalis A. A. Heller 1914-3-12 11194 Butte Canyon of Big Chico Creek E of Chico. 69 Comment
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Feb 17 2016
  RSA31137  Cercis occidentalis A. A. Heller 1914-5-18 11406 Butte West slope of the Sierra near Forest Ranch. 610 Comment
  UCR190822  Cercis occidentalis 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
  CAS-BOT-BC137004  Cercocarpus betuloides var. betuloides A. A. Heller 1917-3-18 12670 Butte Chico Creek lower end of Iron [canon] Canyon Comment
  CHSC50100  Chaenactis glabriuscula var. heterocarpha Vernon Oswald 1990-4-24 4171 Butte Lime Saddle Recreation Area on the West Branch of Lake Oroville, ca. 0.2 mi northeast of Nelson Bar Launch, ca. 0.2 mi east of Lime Saddle Powerhouse. 286 Comment
  CAS-BOT-BC277629  Chaenactis glabriuscula var. megacephala Mrs. C. C. Bruce 1897-4-1 1988 Butte Forest Ranch Comment
  POM351845  Chaenactis xantiana M. M. Boney 1897-1 1724 Butte [Unspecified] Comment
  UC1565641  Chamaemelum fuscatum Lowell Ahart 1989-3-20 6193 Butte about 13 mi s of Oroville (about 3 mi w of Honcut, w of intersection of Highway 70 and Lower Honcut Road) 30 Comment
  CHSC34126  Chamaesyce maculata L. Ahart 1981-9-26 3200 Butte Along the Sacramento River, ca. 6 mi w of Chico. 40 Comment
  UC1563291  Chamaesyce maculata unknown 1990-5-3 6617 Butte 1/4 mi ne Canyon Creek Bridge (accross Lake Oroville below high water line); East Fork of Canyon Creek 259 Comment
  JEPS105939  Chamaesyce nutans Lowell Ahart 2004-9-14 11403 Butte On the east side of Palermo Honcut Highway, about 20 feet south of Palermo Road, east part of Palermo 57 Comment
  CDA35256  Chamaesyce ocellata T. C. Fuller 1962-5-17 8711 Butte Highway 99E to Vina, 12.3 miles northwest of Chico. 0 Comment
  CHSC113526  Chamaesyce ocellata subsp. ocellata Lowell Ahart 2014-9-23 19878 Butte About 30 yards northeast of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. 88 Comment
  CHSC40901  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 1985-11-7 5230 Butte Below the high water line of Lake Oroville, on the north side of the South Fork of the Feather River, about 200 yards north-west of the Ponderosa Dam. 286 Comment
  JEPS115581  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2009-9-13 16404 Butte On the bottom of a large wash, Peter Ahart Ranch, about 2 miles north and 1/4 mile east of Honcutt, about 12 miles (air) south of Oroville 30 Comment
  CAS-BOT-BC165954  Chamerion angustifolium E. B. Copeland 1930-7-21 428 Butte Jonesville 1600 Comment
  SEINET10529948  Cheilanthes californica Mary Susan Taylor 1980-3-19 Taylor 2393 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
  JEPS104147  Cheilanthes gracillima Lowell Ahart 2003-4-15 10099 Butte Steep slopes of Beatson Hollow, sw of drainage entering Beatson Hollow, ca 1 1/4 mi nw of the iron gate and fence, nw of Cherokee Rd, North Table Mountain, ca 7 mi (air) n of Oroville. 284 Comment
  SEINET10529938  Cheilanthes siliquosa Mary Susan Taylor 1980-3-8 Taylor 2373 A Butte Pulga community, ca. 1 mi NE of Hwy 70, ca. 28 mi NE of Oroville; serpentine soils. 488 Comment
  CAS-BOT-BC460929  Chenopodium album Lowell Ahart 1981-11-6 3230 Butte East of the Gridley Bridge 35 Comment
  CDA42948  Chenopodium strictum var. glaucophyllum L. Ahart 2012-10-28 18528 Butte About 50 yards east of the freeway, northwest of Table 2, Lower Bidwell Park, Chico. Comment
  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
  JEPS87387  Chimaphila menziesii Lowell Ahart 1993-7-29 7129 Butte ca. 6 1/2 mi. n.e. Stirling City (ca. 1/8 mi. s.w of Snow Mine, ca. 2 1/2 mi. e. of Bald Mt.) 1463 Comment
  CAS-BOT-BC451485  Chimaphila umbellata E. B. Copeland 1929-7-1 s.n. Butte Jonesville, along Butte Creek 1550 Comment
  CAS-BOT-BC497799  Chlorogalum angustifolium Lowell Ahart 1989-5-23 6261 Butte Along Swedes Flat Road, about 1 mile east of Oroville Bangor Highway, north of Bangor. 426 Comment
  CAS-BOT-BC498626  Chlorogalum angustifolium Lowell Ahart 1977-5-22 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CHSC91466  Chlorogalum pomeridianum var. pomeridianum Lowell Ahart 2005-7-13 12148 Butte About 20 yards east of the intersection of Forbestown Road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown, about 12 miles (air) east of Oroville. 759 Comment
  CHSC45495  Chorizanthe polygonoides Lowell Ahart 1979-5-7 1862 Butte East of Kunkle Creek, about 1/8 mile north-east of Kunkle Reservoir, about 2 1/2 miles south-east of Paradise. 472 Comment
  RSA489567  Chorizanthe polygonoides James L. Reveal 1988-6-3 7007 Butte Paradise, 0.2 mile south of Bennett Road along South Libby Road onto the northern end of Morgan Ridge. 518 Comment
  CHSC39931  Chorizanthe polygonoides var. polygonoides M. S. Taylor; V. Oswald 1984-4-4 5392 Butte S side of Humbug Rd, ca. 2 mi SW of Nimshew, ca. 12 air mi NE of Chico. In dry open bare patches on hillside. Comment
  POM219417  Chrysolepis sempervirens H. F. Copeland 1928-8-14 215 Butte Neighborhood of Jonesville, on dry ridge above Scotch-John Creek. 1829 Comment
  UC177566  Cirsium andersonii H. M. Hall 1914-7-30 9817 Butte northern Butte County Sierra Nevada Mountains Comment
  CHSC11842  Cirsium douglasii var. breweri E. B. Copeland 1930-7-28 488 Butte Jonesville. 1600 Comment
  UC921141  Cirsium occidentale var. candidissimum H. S. Reed 1939-8-5 292 Butte Chico Comment
  CHSC304  Cirsium occidentale var. venustum B. Richardson 1929-5-14 Butte Cohasset. 609 Comment
  CHSC3489  Clarkia arcuata Rober Jaegel 1966-4-20 114 Butte Located near the covered bridge, on Chico, Paradise Road in a meadow. Comment
  CHSC90097  Clarkia arcuata Dan Morgan 1991-4-16 8 Butte S bank Butte Creek, vicinity Covered Bridge. 114 Comment
  JEPS117145  Clarkia arcuata Lowell Ahart 2010-4-30 16590 Butte Below rim, north side of disk golf area, on a ridge about 250 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 360 Comment
  CHSC30014  Clarkia concinna subsp. concinna L. Ahart 1980-5-25 2341 Butte Near the edge of Ponderosa Way, ca. 2 mi s of the Ponderosa Dam, near Forbestown. 600 Comment
  CHSC42365  Clarkia gracilis subsp. albicaulis Lowell Ahart 1987-5-9 5605 Butte On roadcuts near the bridge across the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 304 Comment
  UC107825  Clarkia gracilis subsp. albicaulis R. M. Austin July 1896 848 Butte Little Chico Creek Comment
  CHSC29983  Clarkia gracilis subsp. gracilis Lowell Ahart 1980-5-17 2286 Butte By a small wash E of the Oak Grove Cemetery, ca. .5 mi SE of Hurleton. 600 Comment
  POM37797  Clarkia gracilis subsp. gracilis C. C. Bruce 1898-05 2419 Butte Grain fields. Comment
  UCR148890  Clarkia mildrediae G. Fred Hrusa, T. D. Wilfred 1996-7-9 13169 Butte Sierra Nevada - Plumas National Forest, c. 1 m. on 22N89; immediately south of Rogers Cow Camp on Hwy 162 335 Comment
  CAS-BOT-BC163265  Clarkia mildrediae subsp. lutescens Clarence R. Quick 1952-7-1 52 -125 Butte Mill Creek Road between Feather River Canyon and Coyote Gap Comment
  CHSC82697  Clarkia mosquinii L. P. Janeway 2002-6-22 7605 Butte Northern High Sierra Nevada. Along Bardee's Bar Road 1.3 km north of Big Bend Road; about 1/2 way between Jarbo Gap and North Fork Feather River. Burned area. 655 Comment
  CHSC52094  Clarkia purpurea R. C. Kirkpatrick 1972-4-25 39 Butte Found ca. 100 yds. se of Horseshoe Lake and ca. 50 yds sw of the skeet shooting range. 152 Comment
  CHSC33251  Clarkia purpurea subsp. purpurea R. A. Schlising 1979-6-5 3442 -1 Butte Richvale vernal pool area; 1/4 mile S of jct Hwy 162 to Oroville and Hwy 99; along the latter and across from Thermalito Afterbay. Comment
  CHSC35144  Clarkia purpurea subsp. quadrivulnera R. Schlising; R. Banchero 1980-6-6 3648 Butte N of Lake Oroville along Hwy 162, 1.7 mi N of Bidwell Bar Bridge crossing of the lake. Roadside bank. 304 Comment
  CAS-BOT-BC164787  Clarkia rhomboidea E. B. Copeland 1931-6-10 s.n. Butte Jonesville 1650 Comment
  CHSC1114  Clarkia rhomboidea R. Carter 1964-5-16 91 Butte Feather River Canyon, 1/4 mi. W of Cresta powerhouse on S side of Hwy. 40A. 670 Comment
  CHSC37429  Clarkia rhomboidea R. Schlising; K. Tarp 1982-7-28 4352 Butte E of Pulga and SW of Coyote Gap Station, on Big Bar Mountain Road. On roadside bank. 1249 Comment
  CHSC76950  Clarkia rhomboidea Ida Ryan 1893-5-1 Butte Little Chico. Comment
  CAS-BOT-BC164788  Clarkia rhomboidea A. A. Heller 1928-5-27 14562 Butte At the sawmill on the Neal Road, Paradise Comment
  CHSC56063  Claytonia palustris L. P. Janeway 1988-6-16 2813 Butte Along Butte Creek, 1.4 mi south of Humboldt Road via the road in the west side of the canyon. 1264 Comment
  RSA65644  Claytonia palustris F. W. Peirson 1926-6-21 6774 Butte Butte Meadow, Humboldt Road Comment
  SBBG86232  Claytonia palustris J. R. Swanson 1959-7-4 490 Butte south bank of Jones Crk, 0.4 km E of Jonesville Hotel, Jonesville; ISOTYPE 1550 Comment
  SEINET3404516  Claytonia palustris J. R. Swanson 1959-7-4 490 Butte Jonesville, marshy, sloping stream-fed meadow above south bank of Jones Creek, 0.4 Km east of the Jonesville Hotel. 1550 Comment
  SEINET10895984  Claytonia parviflora Mary Susan Taylor 1980-4-1 Taylor 2418 Butte T22N R2E sc sec 25. Riparian Woodland along S side of Butte Creek, ca. 1/4 mi downstream from Honey Run Covered Bridge ca. 6 mi E of Chico. 122 Comment
  JEPS87429  Claytonia parviflora subsp. grandiflora Vernon H. Oswald and Lowell Ahart 1993-4-19 5284 Butte Rattlesnake Creek Trail ene Magalia (between Jordan Hill Rd and Sawmill Peak Lookout) 740 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
  SEINET10572709  Claytonia perfoliata Mary Susan Taylor 1973-1 Taylor 45 Butte Upper Bidwell Park, Chico. Associates: Stipa pulchra, Lasthenia chrysostoma, Layia fremontii. 61 Comment
  CHSC33356  Claytonia perfoliata subsp. perfoliata Steve Alvarez 1980-3-3 8 Butte Within Chico city limits, ca. 0.2 km nnw of Horselake, 1.0 km n of Big Chico Creek, on top of the ridge. 150 Comment
  CAS-BOT-BC443704  Claytonia rubra Lowell Ahart 1982-6-4 3540 Butte 1 1/2 miles east of Camp 18, about 8 miles east of Feather Falls 1000 Comment
  CAS-BOT-BC91350  Clematis lasiantha Helen M. Edwards 1917-6-1 s.n. Butte De Sabla. Comment
  CHSC44344  Clematis lasiantha Lowell Ahart 1988-3-27 5946 Butte Along Poe Power House Road, about 1/2 mile north-west of the Poe Power House, about 1 1/2 miles south-east of Jarbo Gap. 426 Comment
  CHSC84855  Collinsia heterophylla L. P. Janeway; John Hunt 2003-6-5 7811 Butte Northern Sierra Nevada Foothills. Steep north-facing slope above Lake Oroville 635 m east of the south end of Bidwell Bar Bridge. 290 Comment
  POM193432  Collinsia parviflora E. B. Copeland 1930-6-28 454 Butte Jonesville. 1650 Comment
  SEINET10964453  Collinsia sparsiflora var. bruceae Lowell Ahart 1991-4-8 Ahart 6643 Butte On a steep slope on the west side of North Honcut Creek, Peter Ahart Ranch, about 1 1/2 miles north and 2 and 3/4 miles east of Honcut, about 12 miles southeast of Oroville. Foothill Woodland. T17N R4E S11. 46 Comment
  CHSC30375  Collinsia sparsiflora var. collina J. D. Jokerst 1979-3-9 1140 Butte Top of North Table Mt., near the E edge of mt adjacent to and S of the waterfalls of the S branch of Coal Cr., center of the W edge of section 8. Comment
  JEPS6368  Collinsia tinctoria Rimo Bacigalupi & Richard Hauke 1954-7-15 4700 Butte 0.5 mi s and below Nimshew (along flank of Butte Canyon, on the Humbug (Nimshew) rd); Butte Canyon 701 Comment
  RSA592526  Collinsia tinctoria S. O. Mattoon 1970-6-12 15 Butte Ponderosa Way Forest Road at Mud Creek; 5 air miles ESE of Cohasset. Southern Cascade Mountains. 671 Comment
  POM65171  Collomia heterophylla Kate Conger 1907-1 s.n. Butte Brush Creek. Comment
  CHSC58936  Collomia linearis Lowell Ahart 1992-7-21 6819 Butte In meadows, north-west of a snow lake, on the south side of Coon Hollow, about 2 (air) miles north-east of Philbrook Reservoir. 1737 Comment
  RSA699521  Comandra umbellata subsp. californica R. D. Fischer 2004-4-11 60 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the E side addition along Hwy 32. Located along 10 Mile House Rd where it parallels Chico Creek. Creek side of rd. 229 Comment
  CHSC66438  Convolvulus arvensis Vernon H. Oswald; Lowell Ahart 1996-6-10 7743 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Common on the riprapped bank of the Sacramento River at the N end of the Riparian Sanctuary. 28 Comment
  POM70644  Convolvulus arvensis C. C. Bruce 1897-05 2040 Butte Butte Creek. Comment
  SEINET10870113  Convolvulus arvensis Mary Susan Taylor 1982-5-22 Taylor 4499 Butte T17N R1E se/se sec 3. Pennington quad. Graylodge Wildlife Refuge, Riparian Woodland at end of West Liberty Rd, ca. 12 mi sw of Gridley. 63 ft. 19 Comment
  SEINET10865266  Cordylanthus pilosus subsp. bolanderi Lowell Ahart 1985-7-24 Ahart 5153 Butte Along the Forbestown Ditch, abut 2 1/2 miles north-east of Forbestown. Comment
  HSC97156  Cordylanthus pilosus subsp. trifidus L. Ahart 2003-8-7 10479 Butte 0.5 mi. N of Cherokee Rd., N Table Mtn., about 7 mi. (air) N of Oroville 320 Comment
  RSA537685  Cordylanthus tenuis subsp. viscidus L. R. Heckard, T. I. Chuang 1971-8-15 2768 Butte About 1.5 miles west of Butte Meadows at Thatcher Ridge near junction. 1280 Comment
  CHSC80534  Coriandrum sativum Lowell Ahart 2001-5-10 8742 Butte On the sides of the dirt road east of the large pump, on the south side of Evans-Reimer Road, about 1 mile east of Pennington Road, Gray Lodge Waterfowl Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  CHSC90089  Cornus nuttallii Brent E. Palmer 1991-4-4 16 Butte 1 mi south of Forest Ranch on Hwy 32. 10 ft south of roadside. 609 Comment
  UC482954  Cornus nuttallii H. F. Copeland 1932-7-18 Butte near West Branch Comment
  CHSC33765  Cornus sericea subsp. sericea R. A. Schlising; R. Banchero, J. Fuller 1981-6-28 4121 Butte E of Stirling City near E border of county. S and E of andesitic Table Mountain in Little Kimshew Creek. 1584 Comment
  UC1609004  Cornus sericea subsp. sericea Lowell Ahart 1993-9-13 7237 Butte ca. 1 mi. s.e. Butte Meadows (on w. side of Bolt Creek); Bolt Creek 1325 Comment
  CHSC75492  Cornus sessilis G. F. Hrusa; T. D. Wilfred 1997-5-7 13734 Butte Sierra Nevada. Little Butte Creek above Magalia Reservoir, N of Magalia, immed. E of Holmwood Drive. [Lat./Long. on label is '39 51 N, 121 34 W']. 710 Comment
  RSA712760  Cornus sessilis L. P. Janeway, Matt Brown 2005-5-17 8392 Butte Plumas national Forest; along un-named creek 0.5 km west of Cedar Creek, 2.8 km north-northwest of its mouth at North Fork Feather River. 1097 Comment
  UC193079  Cornus sessilis Dr. Parry April, 1883 Butte Chico Creek Comment
  CAS-BOT-BC401859  Corydalis caseana subsp. caseana H. M. Hall 1914-7-28 9796 Butte Butte Creek, northern Butte County 1500 Comment
  CHSC117434  Cotula coronopifolia Lowell Ahart 2016-5-31 20903 Butte On the sides of a deep wash, about 1/8 mile east of Palermo Honcut Highway, Peter Ahart Ranch, about 2 1/4 miles north and 1/8 east of Honcut, about 12 miles (air) south of Oroville. 29 Comment
  CAS-BOT-BC291334  Cotula coronopifolia Lowell Ahart 1979-5-25 s.n. Butte 2 miles south of Palermo 35 Comment
  CHSC29058  Crassula aquatica R. A. Schlising 1980-4-2 3535 Butte 1/4 mi S of junction Hwy 162 to Oroville and Hwy 99; along latter and across from Thermalito afterbay. Comment
  JEPS103410  Crassula connata Lowell Ahart 2002-4-14 9481 Butte Area between the Railroad and the Midway Road, 50 yards S of Nelson Dlavo Road, in Nelson. 36 Comment
  JEPS87192  Crassula connata Lowell Ahart 1992-4-7 6742 Butte e side of Biggs Princeton Rd. and w. side of Southern Pacific R.R. in Biggs 30 Comment
  UCD80239  Crassula connata CNPS SN Foothill Team 2005-4-14 SNFN 0034 c Butte Private Rock Ranch, located near the southeast corner of the Rock Ranch pasture. The plot is ~45 m from the southern fence and 30 m west of the eastern fence. 98 Comment
  CAS-BOT-BC290316  Crepis M. S. Taylor 1978-7-18 1681 Butte On n side of Old Humboldt Rd, ca. 1 mi e of jct of Old Humboldt Td & Hwy 32 1371 Comment
  POM219379  Crepis occidentalis subsp. pumila H. F. Copeland 1931-6-11 1532 Butte Jonesville; near Butte Creek Meadows 1829 Comment
  CHSC50817  Crepis pleurocarpa Vernon Oswald; Lowell Ahart 1990-7-19 4372 Butte Slope on the south side of Philbrook Creek, ca. 3 mi east of Philbrook Reservoir, ca. 0.7 mi west of the Plumas County line. 1950 Comment
  UCR219265  Croton setiger George K. Helmkamp, E. A. Helmkamp 2009-9-5 15588 Butte Sacramento Valley, Lower Honcut Road, 0.9 rd. mi. west of Honcut, 7.8 mi. SE (111 deg. ) of Gridley 34 Comment
  CHSC46403  Crucianella angustifolia Lowell Ahart 1989-5-23 6252 Butte About 1/2 mile west of the Oroville Bangor Highway, about 1 mile north-west of Bangor. 213 Comment
  SEINET11091472 Image available Crucianella angustifolia Barbara Ertter, Lowell Ahart, Jeff Strachan 1980-1 3282 Butte Peter Ahart Ranch, ca. 2.5 mi NNE of Honcut between Oroville & Marysville 30 Comment
  CAS-BOT-BC190167  Crypsis vaginiflora A. A. Heller 1914-7-31 11632 Butte Sacramento Valley about 6 miles northwest of Chico. Chico-Hamilton Road. Comment
  CAS-BOT-BC190168  Crypsis vaginiflora Lowell Ahart 1986-11-14 5467 Butte About 0.1 mile south of the clay burrow for Oakville Dam, 0.25 mile east of Larkin Road, about 6 miles southwest of Oroville. 36 Comment
  RSA774125  Cryptantha affinis L. Ahart 2010-9-21 17228 Butte South side of a poor dirt road, about 1 air mile NE of Jones Meadow, about 2.5 air miles SE of Philbrook Reservoir 1900 Comment
  UC480664  Cryptantha affinis H. F. Copeland 1930-7-20 1386 Butte Jonesville Comment
  POM368226  Cryptantha flaccida L. Ahart, P. Ahart 1984-5-28 4649 Butte On a large road cutbank along Highway 40, now called Dark Canyon Road, ca. 2 miles E of Old Yankee Hill, ca. 16 miles NE of Oroville. 450 Comment
  SEINET10497601  Cryptantha hendersonii Mary Susan Taylor 1982-5-2 Taylor 4397 Butte T23N R5E ne/ne sec 6. Pulga Sw quad. Pulga serpentine outcrops on both sides of bridge across Hwy 70 at Pulga, ca. 20 mi ne of Oroville. 1600 ft. 488 Comment
  CHSC29973  Cryptantha milobakeri R. A. Schlising 1980-6-30 3806 Butte Along Humboldt Road, 1.9 mi NE of jct with Hwy 32 at Lomo. 1356 Comment
  CHSC39538  Cryptantha simulans Lowell Ahart 1983-5-28 4020 Butte On both sides of the trail to Feather Falls, about 5 1/4 miles north of the town of Feather Falls. 600 Comment
  CHSC20108  Cupressus macnabiana M. S. Taylor 1975-5-9 568 Butte Ca. 50 yds e of the Skyway, ca. 1/4 mi n of the De Sabla turnoff, Magalia. 731 Comment
  SEINET10531465  Cupressus macnabiana A. Arthur Heller 1918-5-5 Heller s.n. 1918 Butte Near Magalia in the yellow pine and Oak belt (Q. Kelloggii) on serpentine, where Cupressus Macabiana is locally plentiful, the common shrubs Ceanothus cuneatus and Eriodictyon. Comment
  SEINET10496608  Cuscuta californica Mary Susan Taylor 1977-6-25 Taylor 1369 Butte Foothill Woodland-Yellow Pine Forest transition zone, on Ponderosa Way betwe en Cohasset and Forest Ranch. 610 Comment
  CHSC11910  Cuscuta californica var. papillosa E. B. Copeland 1931-7-17 675 Butte Jonesville. 1650 Comment
  CDA42920  Cuscuta campestris L. Ahart 2012-8-22 18423 Butte On the south side of the Railroad Signal Box, east side of the Railroad, about 20 yards south of Central House Road, about 2 miles (air) northwest of Honcut. Comment
  JEPS87199  Cuscuta campestris Lowell Ahart 1992-5-23 6772 Butte about 2 mi w Biggs (on the n side of Biggs Princeton Road) 30 Comment
  UC725368  Cycladenia humilis var. humilis A. A. Heller 1938-7-20 15275 Butte ridge between Inskip and Chaparral 1524 Comment
  CHSC28503  Cymopterus terebinthinus var. californicus M. S. Taylor; J. Jokerst 1979-7-21 2160 Butte On Humboldt Peak, at Humboldt Summit. 2133 Comment
  RSA774126  Cymopterus terebinthinus var. californicus L. Ahart 2010-9-21 17233 Butte On both sides of the County Road, between Sky High Mine and Dresser Camp, about 2 miles (air) southeast of the Philbrook Reservoir Dam, about 7 miles (air) southeast of Butte Meadows Comment
  SEINET10515390  Cynodon dactylon Mary Susan Taylor 1977-10-10 Taylor 1521 Butte 4-5 mi S of junction of Chico-Butte Hwy & Ord Ferry Road, 20 mi S of Chico on both sides of Chico-Butte Hwy; dried up Freshwater Marsh and slough area. Comment
  CHSC28916  Cynoglossum grande M. S. Taylor; J. Jokerst 1980-2-23 2314 Butte East side of Sawmill Rd, ca. 1/2 mi s of Pearson Rd, Paradise. 609 Comment
  CHSC3536  Cynoglossum grande John Francis 1966-4-6 80 Butte 0.3 mile from intersection of Pentz-Magalia Rd. and Nelson Bar Rd., on Nelson Bar Rd. Comment
  CHSC46804  Cynoglossum occidentale R. A. Schlising; L. Janeway 1988-7-16 4597 Butte W of Jonesville. Near Willow Creek. 1524 Comment
  SEINET10518396  Cynosurus echinatus K. Henegar 1969-5-15 Henegar 55 Butte Upper Bidwell Park, near Big Chico Creek at Bear Hole. Shaded area, sandy soil. Comment
  CAS-BOT-BC114703  Cyperus bipartitus Lowell Ahart 1981-9-15 3169 Butte Along French Creek. 1300 Comment
  CHSC34199  Cyperus bipartitus J. D. Jokerst; L. Ahart 1981-9-26 1493 Butte Swale 100 m E of Sacramento River at the Bidwell River State Park (Chico Landing) ca 5.0 mi W of Chico. Comment
  CHSC45125  Cyperus difformis Vernon Oswald 1987-8-13 3214 Butte Portion of Rancho Bosquejo. Feenstra's Riverview Orchard located at the w end of Cana Hwy between the s half of Cana Lake (on Dicus Slough) and the Sacramento River. Gravel bar along the river. 48 Comment
  UCD141009  Cyperus difformis John Thomas Howell 1959-9-20 34637 Butte eastern outskirts of Oroville. 60 Comment
  CHSC111168  Cyperus eragrostis Lowell Ahart 2012-6-14 18191 A Butte Southwest of CARD Community Center, Lower Bidwell Park, Chico. 62 Comment
  CHSC38900  Cyperus eragrostis Vernon Oswald 1983-6-11 665 Butte Upper Bidwell Park, Chico, in Lindo Channel between Five Mile Recreation Area and the flood-control gates. 79 Comment
  CHSC68380  Cyperus eragrostis L. P. Janeway 1987-5-7 2024 Butte Table Mountain Road where it is right at the base of the railroad fill and overlooking Thermalito Forebay. 91 Comment
  UC589979  Cyperus eragrostis H. S. Yates 1936-8-14 6123 Butte 10 mi. s. Durham; Chico Quad. 30 Comment
  UCD54066  Cyperus eragrostis E. M. Johnston 1915-1 W- 142 J Butte Biggs. Comment
  UCD54072  Cyperus eragrostis L. E. Hazeltine 1916-7-27 s.n. Butte Chico. Comment
  POM185581  Cyperus eragrostis E. B. Copeland 1903-7-27 3490 Butte Chico. Comment
  RSA0028815  Cyperus eragrostis H. F. Copeland 1923-6-4 549 Butte Nelson. Comment
  CAS-BOT-BC114383  Cyperus erythrorhizos Lowell Ahart 1981-9-19 3191 Butte Cresta Power House. Comment
  CHSC116125  Cyperus erythrorhizos Lowell Ahart 2015-10-26 20596 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
  CHSC45126  Cyperus erythrorhizos Vernon Oswald 1987-7-8 3099 Butte Butte Creek Reserve, on the north side of Butte Creek east of the Skyway, east of Chico. 74 Comment
  CHSC69730  Cyperus erythrorhizos Lowell Ahart 1997-10-24 7944 Butte About 200 yards north of the South Fork of the Feather River and on the east side of Sucker Creek, strand of Lake Oroville, about 1/4 mile west of the Ponderosa Dam. 274 Comment
  CDA42942  Cyperus flavescens L. Ahart 2012-10-2 18503 Butte Soil and gravel bar on the south side of Big Chico Creek, about 100 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CHSC34317  Cyperus flavescens L. Ahart 1981-9-6 3123 Butte In the rd gutter across the rd from the rest area just a little s of the Arch Rock tunnel on Hwy 70, ca. 4 mi n of Pulga. 500 Comment
  CDA42941  Cyperus fuscus L. Ahart 2012-10-2 18500 Butte Soil and gravel bar on the south side of Big Chico Creek, about 50 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CHSC76013  Cyperus fuscus Lowell Ahart; Vernon H. Oswald 1999-8-13 8181 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
  JEPS98392  Cyperus iria Vernon H. Oswald 2000-8-12 9949 Butte S end of the large dredge pond, on the W side of the Feather River between Palm Avenue and Vance Avenue Oroville Wildlife Area 28 Comment
  CHSC42900  Cyperus niger Lowell Ahart 1987-7-3 5767 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
  CHSC78283  Cyperus niger Lowell Ahart 2000-6-21 8500 Butte In a small seep, south of Parking Area P, north of Salmon Hole, Upper Bidwell Park, about 3 1/3 miles (air) northeast of Manzanita Avenue, Chico. 106 Comment
  JEPS97343  Cyperus niger Lowell Ahart 1995-8-19 7613 Butte 1 mi N and 2 3/4 mi E of Honcut; Peter Ahart Ranch 36 Comment
  UCD141197  Cyperus niger John Thomas Howell 1959-9-20 34639 Butte eastern outskirts of Oroville. 60 Comment
  CAS-BOT-BC114021  Cyperus rotundus L. P. Janeway; C. A. Janeway 1986-9-10 1839 Butte Within the city of Chico, on the CSU Chico Campus. Chico Quad. 59 Comment
  CHSC30386  Cyperus squarrosus J. D. Jokerst 1980-7-18 993 Butte Top of North Table Mt., ca. 100 m NW of the jct. of Cherokee Rd. and the E edge of Mt. Comment
  CHSC56607  Cyperus squarrosus L. P. Janeway; R. A. Schlising, B. Castro, Pauleen Broyles 1987-7-19 2513 Butte Bed of vernal pool near the southernmost pond on the slopes on the south side of Coon Hollow. 1767 Comment
  CAS-BOT-BC114208  Cyperus strigosus Ira L. Wiggins 1928-9-9 3337 Butte Sandy Gulch Creek, 3 mi W of Chico. Comment
  CHSC116019  Cyperus strigosus Lowell Ahart 2015-10-20 20569 Butte West side of Feather River, about half way of and east of One Mile Pond, about 6 miles (air) east of Biggs. 26 Comment
  CHSC34137  Cyperus strigosus L. Ahart 1981-9-19 3185 Butte Along edge of Feather River, ca. 100 m s of Arch Rock Tunnel on Hwy 70, ca. 10 mi s of Storrie. 550 Comment
  CHSC68413  Cyperus strigosus L. P. Janeway; D. Alexander, B. Castro, C. Oettinger, B. Clark 1986-9-26 1900 Butte Within the City of Chico; Lower Bidwell Park, along Big Chico Creek about 1/4 mi east of Hwy 99. 67 Comment
  CAS-BOT-BC114207  Cyperus strigosus Lowell Ahart 1981-9-19 3185 Butte Arch Rock Tunnel, Hwy 70. 550 Comment
  UCD136363  Cystopteris fragilis E. B. Copeland 1931-6-10 602 Butte Jonesville, by Butte Creek. 1550 Comment
  CAS-BOT-BC68048  Cystopteris fragilis Lowell Ahart 1983-6-26 4130 Butte Small stream along Ponderosa Way, aobut 2 miles south-east of the intersection of the Oroville Quincy Highway and 500 Comment
  RSA692783  Cystopteris fragilis M. M. Boney 1897-1 4215 Butte Unspecified Comment
  SEINET10535614  Cystopteris fragilis Mary Susan Taylor 1978-6-24 Taylor 1659 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
  CHSC10540  Damasonium californicum Lowell Ahart 1968-4-6 Butte Peter Ahart Ranch, Honcut. 42 Comment
  CHSC63720  Darlingtonia californica Lowell Ahart 1994-9-3 7547 Butte In open meadow, near the east side of the meadow, ... Field redacted by CHSC, contact the data manager for more information 1371 Comment
  POM92210  Darmera peltata C. C. Bruce 1898-1 2410 Butte [no additional locality data provided] Comment
  CHSC116979  Datura wrightii Matthew Forster 2013-5-20 Butte 25 meters on east side of Sacramento River, along River Rd., Chico. 38 Comment
  RSA443113  Datura wrightii L. Ahart 1985-9-14 5167 Butte East side of a building, Peter Ahart Ranch, about 1.5 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 34 Comment
  CHSC3804  Delphinium gracilentum L. E. Dunkel 1965-3-30 11 Butte South road ascending Table Mtn., near Oroville. 243 Comment
  CHSC56764  Delphinium gracilentum Kirsten Tarp 1982-4-3 182 B Butte Vilas Rd, SE of Cohasset. 762 Comment
  CAS-BOT-BC121513  Delphinium gracilentum Mrs. H. C. Cantelow 1939-5-19 4251 Butte 8.4 miles W of Butte-Plumas Co. line Comment
  CAS-BOT-BC8565  Delphinium hansenii E. B. Copeland 1899-5-28 s.n. Butte Marysville Comment
  UCD21586  Delphinium hesperium L. K. Manu 1959-6-5 s.n. Butte Between Pentz and Oroville, about 2 min. N.of turnoff to Oregon City. Comment
  CHSC10790  Delphinium nudicaule Lowell Ahart 1968-3-17 Butte Bidwell Park, Chico. 91 Comment
  CAS-BOT-BC9923  Delphinium nudicaule A. A. Heller 1922-4-23 13619 Butte At the Feather River crossing near Yankee Hill Comment
  CAS-BOT-BC8028  Delphinium nuttallianum Herbert Faulkner Copeland 1929-6-12 1211 Butte Jonesville, near north Willow Creek 1524 Comment
  UC854270  Delphinium nuttallianum A. A. Heller 1915-6-27 12038 Butte Jonesville Sierra Nevada 1676 Comment
  UCD96105  Delphinium nuttallianum A. A. Heller 1915-6-27 12038 Butte Jonesville in the Sierra Nevada. 1371 Comment
  RSA400119  Delphinium uliginosum M. M. Boney 1897-1 1724 Butte [No location data on label] 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
  CHSC38165  Delphinium variegatum subsp. variegatum Vernon Oswald 1983-4-6 283 Butte Upper Bidwell Park, Chico, ca. 100 ft s of the n park boundary and ca. 1800 ft e of the junction of Wildwood Ave. and Upper Park Rd. 88 Comment
  CHSC85393  Delphinium variegatum subsp. variegatum John Dittes; Josephine Guardino 1992-5-7 479 Butte Cascade Range Foothills; ca. 5.1 air-miles northeast of Chico City Hall, ca. 1.3 air-miles east by southeast of Horseshoe Lake, ca. 1.2 air-mile west of Hwy 32; north of tributary of Dead Horse Slough, east of Canyon Oaks Golf Course. 176 Comment
  CHSC45024  Dendromecon rigida J. Marr 1988-3-18 8 Butte On n side of Concow Rd, 4 mi. from Hwy 70, 18 mi n of Oroville. 365 Comment
  LA206367  Deschampsia cespitosa H. S. Yates; 1931-7-15 605 Butte Jonesville 1750.0 Comment
  LA206368  Deschampsia cespitosa A. A. Heller; 1928-7-10 14621 Butte Butte Meadows Comment
  CHSC94287  Deschampsia cespitosa subsp. cespitosa Lowell Ahart 2006-7-25 13057 Butte In the west part 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
  RSA715565  Deschampsia danthonioides L. Ahart 2005-5-2 11768 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 Ord bend, about 12 miles (air) southwest of Chico. 26 Comment
  UCD62771  Deschampsia danthonioides P. B. Kennedy 1914-5-1 s.n. Butte Chico. Comment
  SEINET10968134  Deschampsia danthonioides Mary Susan Taylor 1978-5-7 Taylor 1618 Butte In and around Richvale vernal pool area, ca. 20 mi S of Chico, on W side of Hwy 99; Valley Grassland. 30 Comment
  UCD62777  Deschampsia danthonioides var. gracilis A. A. Heller 1974-4-17 11301 Butte 8 miles north of Oroville. Comment
  CHSC109676  Deschampsia elongata Lowell Ahart 2012-6-21 18218 Butte On the south side of Big Chico Creek about 20 yards west of the Freeway, Lower Bidwell Park, Chico. 62 Comment
  CHSC11980  Deschampsia elongata E. B. Copeland 1929-7-16 335 Butte Jonesville. 1500 Comment
  RSA718078  Deschampsia elongata L. Ahart 2006-7-16 12996 Butte on the northwest edge of Willow Creek, about 3/4 miles (air) northwest of Jonesville, about 5 miles (air) northwest of Butte Meadows 1516 Comment
  SEINET10508567  Deschampsia elongata Mary Susan Taylor, Lowell Ahart 1981-8-15 Taylor 4184 Butte T26N R4E se 1/4 se 1/4 sec. 35. Jonesville SW quad. In and along West Branch Feather River, 3.4 mi SW of Snag Lake, ca. 11 mi NE of Stirling City. 5300 ft. 1615 Comment
  CAS-BOT-BC388457  Dianthus armeria Lowell Ahart 1983-6-21 4065 Butte Near a branch of Canyon Creek, just off of Bloomer Hill Road, about 1/2 mile west of the Oroville Quincy Highway, about 15 miles north-east of Oroville 400 Comment
  CHSC97407  Dianthus armeria subsp. armeria Robert Fischer 2006-6-28 1026 Butte Paradise. Sierra Nevada foothills, upper Paradise Pines, off Nimshew Road. 853 Comment
  UC854935  Dicentra formosa A. A. Heller 1915-6-11 11965 Butte Chico Meadow; Sierra Nevada 1219 Comment
  JEPS98294  Dichanthelium acuminatum subsp. fasciculatum Lowell Ahart 2000-6-27 8514 Butte Big Bald Rock, about 3 miles (air) east of Madrone Lake, about 12 miles (air) northeast of Oroville. 993 Comment
  UCD73058  Dichelostemma capitatum Ayzik Solomeshch 2003-4-9 s. n. Butte Wurlitzer Reserve, about 10 mi. north from Chico on Hwy 99, west side of the road. Comment
  UC421798  Dichelostemma capitatum Francis Ramaley 1917-5-6 11206 Butte 3 of Chico Comment
  CHSC77454  Dichelostemma capitatum subsp. capitatum Laura Bogni 1997-3-25 9 Butte Magalia Grove. West side of Coutelenc Rd.; 1 mi. due W of Sawmill Peak; 1/2 mi. SE of Magalia Reservoir. 701 Comment
  CHSC82601  Dichelostemma capitatum subsp. capitatum Tara Morgan 2002-4-23 26 Butte Found along the south rim trail located on the east side of Big Chico Creek. Located down from the green gate off of Highway 32 down the trail to the left split. 395 Comment
  SD6360  Dichelostemma capitatum subsp. capitatum Mrs. R. M. Austin 1883-1 Butte No further locality information given on label. Comment
  CAS-BOT-BC483262  Dichelostemma capitatum subsp. pauciflorum John Thomas Howell 1962-6-16 37549 Butte Magalia, Sierra Nevada 731 Comment
  CAS-BOT-BC501081  Dichelostemma multiflorum H. C. Cantelow 1940-5-10 3914 Butte SW of Oroville on Highway 24 Comment
  HSC38063  Dichelostemma multiflorum Thomas W. Nelson, Jane P. Nelson 1976-5-10 2471 Butte Beside SR 191 4 mi. W of Paradise Comment
  POM215700  Dichelostemma multiflorum David D. Keck 1933-5-31 2417 Butte 5 miles east of Oroville on road to Bangor. Comment
  SEINET10472710  Dichelostemma multiflorum Mary Susan Taylor 1981-4-5 Taylor 3488 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
  CHSC4716  Dichelostemma volubile R. Carter 1966-4-30 387 Butte Found 7 mi. E of Oroville ca. 1/8 mi. W off Feathervale at 6120 Woodleaf St. Rt. 243 Comment
  SEINET12046112  Dichelostemma volubile Unknown 1978-1 29 Butte on N side of Honey Run Rd, ca 5.5 mi E of Chico 76 Comment
  CHSC43279  Digitaria ischaemum Lowell Ahart 1987-8-30 5858 Butte On a gravel bar along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  JEPS110335  Digitaria sanguinalis Lowell Ahart 2006-10-8 13433 Butte East side of the North Fork of the Feather River, about 50 yards north of where the river flows into a pool, on the west side of Highway 70, about 1/2 mile north of the Cresta Power House 609 Comment
  UCD63992  Digitaria sanguinalis L. E. Hazeltine 1916-7-10 Butte Chico. Comment
  CHSC104800  Diospyros virginiana Lowell Ahart 2010-6-12 16803 Butte North side of the pond, at the table, at the old homestead, about 100 yards south of Ten Mile House Road, about 5/8 mile (air) west of Highway 32, about 9 miles (air) northeast of Chico. 249 Comment
  CHSC30376  Diplacus douglasii J. D. Jokerst 1979-3-9 1141 Butte Top of North Table Mt., adjacent to and S of the waterfalls of the S branch of Coal Cr. Canyon, center of the W edge of section 8. Comment
  CHSC47500  Diplacus kelloggii Lowell Ahart 1973-3-24 183 Butte On the north side of Swedes Flat Road, about 1/4 mile east of the bridge across Rocky Honcut Creek, north of Bangor. 487 Comment
  CHSC71193  Diplacus kelloggii Lowell Ahart 1998-6-3 7971 Butte About 1/4 mile north of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  SEINET8360328  Diplacus kelloggii Unknown 1985-4-8 2220 Butte above Hwy. 70 2.3 mi SW of Pulga Rd. 610 Comment
  JEPS104173  Distichlis spicata Lowell Ahart 2003-5-27 10223 Butte About 100 yd w of the dirt road, w of Diversion Dam on Big Chico Creek, w of Parking Area L, Upper Bidwell Park, ca 3 1/2 mi e of Manzanita Avenue, Chico. 121 Comment
  CHSC81291  Dodecatheon clevelandii subsp. patulum J. Trizzino 2001-2-22 4 Butte North side of Humboldt Road, ca. 0.5 mi east of intersection with Bruch Road, about 300' south of rock wall on grazed area. 112 Comment
  CHSC33355  Dodecatheon hendersonii Steven Azevedo 1980-3-23 2 Butte Corner of Pentz-Magalia Hwy. and Limesaddle Road, 3 mi. sw of Paradise. 304 Comment
  POM68175  Downingia bicornuta C. C. Bruce 1897-04 1903 Butte [No location data on label] Comment
  JEPS117214  Downingia cuspidata Lowell Ahart 2010-5-16 16690 Butte About 1/4 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville 371 Comment
  UC890622  Downingia cuspidata Elmer I. Applegate 1928-4-27 5378 Butte between Richvale and Biggs Comment
  POM257240  Downingia ornatissima H. L. Mason 1927-5-9 3708 Butte Sacramento Valley, 15 miles W of Oroville. Comment
  UC764554  Downingia ornatissima var. ornatissima R. F. Hoover 1936-5-21 1170 Butte 8 mi nw Chico Comment
  UC765626  Downingia ornatissima var. ornatissima R. F. Hoover 1936-5-20 1151 Butte 10 mi sw Oroville Comment
  CHSC39617  Draba verna var. aestivalis Lowell Ahart 1983-4-1 3914 Butte Along the edge of old Highway 40, near the end of the road where it runs into Lake Oroville, about 4 miles south of Jarbo Gap. 350 Comment
  JEPS119838  Draba verna var. aestivalis Lowell Ahart 2012-3-23 17780 Butte About 100 yards south of the intersection of Guardian Trail and Ten Mile House Road, about 1/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  CHSC687  Draperia systyla R. Carter 1964-5-16 90 Butte Feather R. Canyon, S side Hwy. 40 A along old road ca. 300 yds. E of Bear Cr. 731 Comment
  CHSC84243  Draperia systyla Lowell Ahart 2003-7-12 10376 Butte Near a small stream, on the west side of Milsap Bar Road, about 2 1/2 miles (air) east of the Brush Creek Work Center, about 17 miles (air) northeast of Oroville. 1036 Comment
  SFV11589  Draperia systyla M. L. Vincent 1968-6-10 838 Butte Sierra Nevada 1.2 miles south from Cresta Power House sign, North Fork Feather River. 460 Comment
  SFV2953  Draperia systyla I. L. Wiggins, D. B. Wiggins 1961-6-10 16314 Butte Sierra Nevada Southeast-facing, rocky slope in Feather River Canyon near P. G. & E. Rock Creek Reservoir. Comment
  UCD123996  Drosera rotundifolia Barry Rice 2011-8-21 BR 110809 Butte Along Colby Creek. Population upstream, extending into Tehama County. 1490 Comment
  CHSC109669  Drymocallis glandulosa var. glandulosa Lowell Ahart 2012-6-28 18241 Butte On the north side of Big Chico Creek, east of Sycamore Pool, Lower Bidwell Park, Chico. 61 Comment
  CHSC90204  Dryopteris arguta Lowell Ahart 2005-1-20 11473 Butte On the west side of McCabe Creek, above the high water line of Lake Oroville, about 1/4 mile south of the siphon, about 3 miles (air) northeast of Hurleton, about 7 miles (air) east of Oroville Dam. 304 Comment
  RSA715710  Dryopteris arguta L. Ahart 2005-1-20 11473 Butte West side of McCabe Creek, above the high water mark of Lake Oroville, about 1/4 mile soutj of the siphon. about 3 mi northeast of Hurleton, about 7 mi east of Oroville Dam. 305 Comment
  SEINET3449614  Dryopteris arguta Unknown 2003-6-30 10326 Butte Forbestown, Forbestown, about 2 miles air northwest, south side of Ponderosa Way, about 2 miles by road southwest of the Ponderosa Dam 490 Comment
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Sep 19 2014
  CHSC66666  Dysphania ambrosioides Vernon H. Oswald 1996-7-17 8064 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. 30 Comment
  CHSC81778  Dysphania ambrosioides Lowell Ahart 2001-10-10 9413 Butte On the north side of Gridley Road, about 100 yards southeast of the bridge across the Feather River, about 3 1/2 miles (air) east of Gridley. 27 Comment
  CHSC108179  Dysphania botrys L. P. Janeway 2011-8-18 10663 Butte Northern High Sierra Nevada. Plumas National Forest; top of Bloomer Hill. In areas where mixed conifer forest has been greatly thinned and the resulting understory shrubs have been cleared several years ago. 912 Comment
  CHSC113163  Dysphania botrys Lowell Ahart 2013-11-13 19232 Butte Below the high water line of Lake Oroville, along the sides of Sucker Creek, about 30 yards north of the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 244 Comment
  CHSC116129  Dysphania botrys Lowell Ahart 2015-11-7 20617 A Butte Strand of Lake Oroville, on the east side of the old highway Alternate 40, about 1/4 mile south of the end of Alternate 40, Dark Canyon, about 4 miles (air) south of Highway 70, about 8 miles (air) southeast of Paradise. 236 Comment
  CHSC48293  Dysphania pumilio Vernon Oswald 1987-7-13 3103 Butte Humboldt Rd. between Butte Meadows and Jonesville at Cherry Hill Campground. 1438 Comment
  JEPS120610  Dysphania pumilio Lowell Ahart 2013-11-13 19233 Butte Below the high water line of Lake Oroville, along the sides of Sucker Creek, about 30 yards north of the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. Comment
  SEINET3928576  Echinochloa colona Lowell Ahart 1984-9-17 4791 Butte Peter Ahart Ranch, about 2.3 mi N and 0.3 mi. E of Honcut, about 12 mi S of Oroville; Valley Grassland.; 0 50 Comment
  CHSC28867  Echinochloa crus-galli J. D. Jokerst; T. B. Devine, D. Greenstein 1979-9-13 429 Butte Top of North Table Mt, ca 100 m n of the intersection of east edge of Mt and Cherokee Rd. Comment
  UC1100268  Echinochloa crus-galli Herbert L. Mason 1945-9-19 12740 Butte nw Pennington; Gray Lodge Game Refuge Comment
  SEINET10564198  Echinochloa crus-galli Mary Susan Taylor 1979-11-11 Taylor 2284 Butte 6 mi S of Chico on W side of Goodspeed-Watt Road. With Jim Jokerst. Edge of ricefield. 34 Comment
  UC1254615  Echinochloa oryzicola Beecher Crampton 1963-9-9 6887 Butte 5 mi nw Biggs (Biggs Rice Experiment Station); Biggs Rice Experiment Station Comment
  RSA365246  Echinochloa oryzoides L. Ahart 1984-9-17 4792 A Butte Peter Ahart Ranch, ca. 2.3 mi. N and 0.3 mi E of Honcut, ca. 12 mi S of Oroville. 50 Comment
  CHSC25340  Echinodorus berteroi M. P. Hayes 1977-8-13 33 Butte Butte College Campus, in northern-most pond between the branches of Clear Creek. 88 Comment
  CHSC115322  Elatine Lowell Ahart 2015-4-24 20074 Butte On the west side of the dirt road, about 300 yards northeast of Parking Lot 10, about 2 miles east of Pennington Road, Gray Lodge Wildlife Area, about 3 1/2 miles (air) southwest of Gridley. 22 Comment
  CHSC115335  Elatine Lowell Ahart 2015-4-24 20069 Butte Normal size plants, on damp bare soil, bottom of a large duck field. 19 Comment
  CHSC113454  Elatine ambigua Lowell Ahart 2014-8-8 19696 Butte Open edge of a rice field, Peter Ahart Ranch, about 2 1/4 miles north and 1/2 mile east of Honcut. 33 Comment
  RSA0112566  Elatine ambigua Lowell A. Ahart 2013-9-20 19061 Butte About 100 yards west of the railroad, about 400 yards south of the Rice Experiment Station buildings, about 2 miles southeast of Richvale. 31 Comment
  CHSC55610  Eleocharis acicularis L. P. Janeway; C. A. Janeway 1986-8-31 1818 Butte Along Philbrook Reservoir near Picnic Area. Along east end of the lake. 1691 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
  CHSC45177  Eleocharis acicularis var. occidentalis Lowell Ahart 1980-5-10 2225 Butte Small wash in a farmed field, about 2 1/2 miles north and 1/4 to 1/2 mile east of Honcut, Peter Ahart Ranch, about 12 miles south of Oroville. 36 Comment
  CHSC11930  Eleocharis bella E. B. Copeland 1929-7-28 344 a Butte Jonesville. 1500 Comment
  JEPS98317  Eleocharis bella Lowell Ahart 2000-7-11 8577 Butte 4 air mi NE of Feather Falls (100 yds N of Lumpkin Ridge Rd, upper W branch of Know-nothing Creek, 1 mi SW of int. of Lumpkin Ridge Rd, rd to Fall River, and the County Rd) 1219 Comment
  CAS-BOT-BC113451  Eleocharis bella Lowell Ahart 1984-5-7 4591 Butte Ca 1/2 mi N of Kinkle Res., ca. 2 mi S of Paradise. 600 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
  CHSC78298  Eleocharis bolanderi Lowell Ahart 2000-6-29 8541 Butte Flea Meadow, about 1/2 mile west of Flea Mountain, about 3 1/2 miles (air) north of Concow Reservoir, about 5 miles (air) east of Magalia. 1036 Comment
  CAS-BOT-BC113373  Eleocharis engelmannii Lowell Ahart 1974-11-9 s.n. Butte In rice field, Peter Ahart ranch, Honcut 45 Comment
  UCD49723  Eleocharis engelmannii Beecher Crampton 1957-9-17 4630 Butte Biggs Rice Exper. Sta. 5 miles northwest Biggs, Butte County. Comment
  CHSC68433  Eleocharis macrostachya L. P. Janeway 1986-10-19 1938 Butte Along small creek just west of Clear Creek, on north side of Durham-Pentz Road. On Butte College agricultural land. 82 Comment
  CHSC77999  Eleocharis macrostachya Lowell Ahart 2000-5-13 8339 Butte On the bottom of a small wash, south of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 42 Comment
  CHSC78300  Eleocharis montevidensis Lowell Ahart 2000-6-21 8497 Butte In a small seep, south of Parking Area P, north of the Salmon Hole, Upper Bidwell Park, about 3 1/3 miles (air) northeast of Manzanita Avenue, Chico. 106 Comment
  SEINET3478049  Eleocharis pachycarpa Unknown 2000-7-18 8597 Butte Oroville, Oroville, about 4 air miles southwest, about 0.5 miles west of Pacific Heights Road, Oroville Wildlife Area 40 Comment
  CAS-BOT-BC113171  Eleocharis palustris E. B. Copeland 1931-7-15 613 Butte Jonesville, in and beside the Lily Pond, a permanent pool. 1750 Comment
  RSA0046897  Eleocharis quadrangulata Richard Carter 2006-7-31 17113 Butte Ca. 4 airmiles S Oroville jct. Hwy CA 70 and Hwy CA 162, Oroville Wildlife Area. Comment
  CHSC78308  Eleocharis quinqueflora Lowell Ahart 2000-7-5 8553 Butte South margin of the boggy area in a large spring like area, west of the lone oak tree, west of the cow chute and the large parking area on the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  RSA692209  Eleocharis quinqueflora L. Ahart 2003-5-28 10231 Butte About 100 ft W of Hendricks ditch, about 1 3/4 miles NW of the iron gate and fence, NW of Cherokee Road, North Table Mt., about 7 miles (air) N of Oroville 272 Comment
  CHSC76303  Eleocharis radicans Lowell Ahart 1999-9-21 8276 Butte Large disturbed area along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  JEPS98377  Eleocharis radicans Lowell Ahart 2000-10-2 8700 Butte 2 mi SE of Ordbend (N of a large pond on E side of Sacramento River, NW of Parrott Landing, 1 mi SE of Ord Ferry, 12 air miles SW of Chico) 32 Comment
  CDA38982  Eleocharis radicans L. Ahart 2000-9-2 8680 -A Butte About 4 miles (air) southwest of Oroville; about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area. Comment
  CHSC100885  Eleocharis suksdorfiana L. P. Janeway; Linus Gog 2008-7-19 9438 Butte High Cascade Range. Along the east side of Butte Creek 1.0 air km west of Cherry Hill Campground; just downstream of 'Pat's Meadow. 1399 Comment
  CHSC44441  Elodea canadensis Lowell Ahart 1988-5-30 6020 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  UCD61569  Elymus elymoides A. A. Heller 1917-7-29 12867 Butte Summit above Jonesville. 2133 Comment
  SD178  Elymus elymoides var. brevifolius E. B. Copeland 1929-7-24 340 Butte Jonesville 1575 Comment
  CHSC9346  Elymus glaucus V. Hagaman 1968-5-3 582 Butte North end of Magalia, by railroad bridge. Comment
  JEPS120108  Elymus glaucus subsp. glaucus Lowell Ahart 2012-6-28 18239 -A Butte On the north side of Big Chico Creek, east of Sycamore Pool, Lower Bidwell Park, Chico. Comment
  JEPS103565  Elymus stebbinsii subsp. septentrionalis Lowell Ahart 2002-6-21 9738 Butte 5 air mi N of Feather Falls (town) (poor dirt road, Watson Ridge, 2 air mi NE of Bald Rock Dome) 1086 Comment
  CHSC108856  Enemion occidentale Lowell Ahart 2012-2-22 17746 Butte On the east bank of South Rim Trail, about 1/4 mile southwest of the pond, about 5/8 mile west of Highway 32, about 8 3/4 miles (air) northeast of Chico. 254 Comment
  CHSC38166  Enemion occidentale Vernon Oswald 1983-2-14 71 Butte Upper Bidwell Park, Chico, along Yahi Trail ca. 200 ft e of Parking Area R (on the section of trail leading eastward to Brown's Hole). 231 Comment
  SEINET12196472  Epilobium adenocaulon E. L. Rilla 1976-9-18 29 Butte 0.5 mi S of Gridley Road on Pennington Road in Gray Lodge Waterfowl Management area 21 Comment
  RSA458688  Epilobium brevistylum Louis C. Wheeler 1928-8-21 413 Butte Neighborhood of Jonesville; swamp near head of Willow Creek 1524 Comment
  CHSC33677  Epilobium campestre L. Ahart 1981-5-16 2805 Butte On the Graylodge Waterfowl Mgmt Area, 11 mi sw of Gridley. 35 Comment
  RSA795888  Epilobium campestre L. Ahart 2012-6-4 18153 Butte Open pasture field, Peter Ahart Ranch, about 2.25 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 37 Comment
  CAS-BOT-BC166846  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
  CHSC109665  Epilobium ciliatum subsp. ciliatum Lowell Ahart 2012-6-28 18235 Butte 10 yards south of Vallombrosa Avenue, northeast of Sycamore Pool, Lower Bidwell Park, Chico. 61 Comment
  CHSC111163  Epilobium ciliatum subsp. ciliatum Lowell Ahart 2012-6-21 18205 Butte On the south sife of Big Chico Creek, about 200 yards east of the dam at Sycamore Pool, Lower Bidwell Park, Chico. 62 Comment
  CHSC111153  Epilobium cleistogamum Lowell Ahart 2012-6-4 18154 Butte Peter Ahart Ranch, about 2 1/4 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC75291  Epilobium cleistogamum Lowell Ahart 1999-5-21 8071 Butte Along a drain ditch in a pasture field, 50 yards north of Evans Reimer Road, about 7/8 mile east of Pennington Road, about 5 miles (air) southwest of Gridley. 21 Comment
  RSA166332  Epilobium cleistogamum D. M. Moore 1961-7-1 445 Butte Butte County road to Honcut, 1.1 miles E of 40A Comment
  CHSC111605  Epilobium densiflorum Lowell Ahart 2012-8-12 18418 Butte The south edge of North Honcut Creek, about 3/4 mile north and 2 1/2 miles east of Honcut, about 13 miles southeast of Oroville. 39 Comment
  CHSC58927  Epilobium densiflorum Lowell Ahart 1992-7-29 6890 Butte In a depression, on slopes, about 1 miles north-east of the Carr Mine, about 3/4 mile north-west of Lotts Lake. 1798 Comment
  UC600550  Epilobium lactiflorum H. F. Copeland 1932-8-19 Butte springs near crest of ridge S.E. of head of Butte Creek; Jonesville 2000 Comment
  CHSC38064  Epilobium minutum R. E. Preston 1982-4-22 255 Butte Ca. 4 mi SW of Paradise. 286 Comment
  UCD106506  Epilobium minutum Lewis S. Rose 1963-6-2 63071 Butte 2 miles S of Pulga. North fork of Feather River. 579 Comment
  JEPS119903  Epilobium pallidum Lowell Ahart 2012-5-31 18124 Butte About half way between Salmon Hole trail and Parking Area O, Upper Bidwell Park. Comment
  JEPS38237  Epilobium torreyi W. L. Jepson 1934-5-4 16613 Butte 2 1/2 mi e Cana Comment
  UCD80483  Epilobium torreyi CNPS SN Foothill Team 2005-5-28 SNNR 0207 a Butte City of Chico, Upper Bidwell Park, on the east side of Big Chico Creek where the plateau above the creek ends. 159 Comment
  CAS-BOT-BC57996  Equisetum arvense E. B. Copeland 1930-6-28 402 Butte Jonesville. 457 Comment
  CHSC20899  Equisetum arvense M. S. Taylor 1975-8-31 891 Butte On Ernies Island, in Butte Creek, ca. 50 ft s of Humboldt Rd, ca. 1/2 mi e of Butte Meadows. 609 Comment
  CHSC11938  Equisetum hyemale subsp. affine E. B. Copeland 1929-7-6 330 Butte Jonesville. Comment
  JEPS110236  Equisetum hyemale subsp. affine Lowell Ahart 2006-9-13 13323 Butte South edge of the North Fork of the Feather River, about 100 yards west of the Cresta Power House, north side of Highway 70, about 2 3/4 miles northeast of Pulga, about 23 miles (air) northeast of Oroville 437 Comment
  SDSU3946  Equisetum hyemale subsp. affine E. B. Copeland 1929-6-6 734 Butte Comment
  CHSC63793  Equisetum laevigatum Gerald A. Winter 1989-4-15 16 Butte Ca. 1 yd from n side of Big Chico Creek, ca. 100 yds e of diversion dam but before salmon hole. 60 Comment
  RSA718080  Equisetum laevigatum L. Ahart 2006-7-16 12984 Butte About 3/4 (air) mile northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows., 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. 1570 Comment
  SEINET10470670  Equisetum laevigatum Lowell Ahart 1983-4-22 Ahart 3937 Butte On the banks of North Honcut Creek, Peter Ahart Ranch, ca. 3 mi ne of Honcut. Riparian Woodland; 50 m. 50 Comment
  POM352233  Eragrostis cilianensis L. Ahart 1984-10-5 4813 Butte Peter Ahart Ranch, ca. 1.5 mi N and 1.7 mi E of Honcut, ca. 12 mi S of Oroville. 50 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-BC284080  Eragrostis pectinacea var. pectinacea Lowell Ahart 1977-7-10 1493 Butte 3 miles northeast of Honcut 50 Comment
  CHSC44922  Eragrostis pectinacea var. pectinacea Lowell Ahart 1988-7-24 6135 Butte Along the north edge of La Porte Road, about 2 1/2 miles north-east of Bangor. 274 Comment
  JEPS76254  Eragrostis pectinacea var. pectinacea W. L. Jepson 1939-8-17 19465 Butte Feather River bottom near Oroville; Feather River bottom 45 Comment
  SBBG115841  Eragrostis pilosa B. Crampton 1963-9-9 6884 Butte Honcut Comment
  SEINET10791410  Eragrostis pilosa B. Crampton 1963-9-9 Crampton 6884 Butte Honcut. Comment
  CAS-BOT-BC278510  Eragrostis pilosa var. pilosa Lowell Ahart 1974-10-20 s.n. Butte Peter Ahart Ranch. Honcut 45 Comment
  LA203671  Ericameria bloomeri E. B. Copeland; 1930-8-26 493 Butte Jonesville 1550.0 Comment
  UC1609016  Ericameria bloomeri Lowell Ahart 1993-9-8 7170 Butte ridge top about 1 mi e Snow Mountain 2103 Comment
  CHSC13921  Erigeron canadensis M. S. Taylor 1974-9-14 318 Butte In Police Firing Range on s side of Chico Creek, opposite Golf Course, Bidwell Park, Chico. 91 Comment
  CHSC38343  Erigeron divergens Vernon Oswald 1982-5-3 Butte Bidwell Park, Chico. Just below the north rim ca. 800 ft w of the power lines. 207 Comment
  RSA4148  Erigeron inornatus var. inornatus E. B. Copeland 1930-7-6 490 Butte Jonesville 1550 Comment
  CHSC44154  Erigeron lassenianus var. lassenianus V. Oswald; L. Ahart 1988-7-26 3617 Butte Snow Mt. region located ca. 6 air mi se of Jonesville. 1996 Comment
  CAS-BOT-BC295774  Erigeron petrophilus var. sierrensis John Thomas Howell 1959-9-26 s.n. Butte At Pulga Bridge, Feather River Canyon Comment
  CHSC102986  Erigeron philadelphicus Lowell Ahart 2009-6-3 15824 Butte Drainage below dam, about 100 yards west of the table at the old homestead and southwest of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 239 Comment
  POM34274  Erigeron philadelphicus Mrs. R. M. Austin, C. C. Bruce 1898-05 2077 Butte Iron Canyon. Comment
  CHSC26624  Erigeron sumatrensis M. P. Hayes 1977-9-4 121 Butte Near organic garden area on Butte College Campus at the corner of Clark and Pentz roads. 90 Comment
  SBBG119820  Eriochloa acuminata L. Ahart 2004-9-14 11400 Butte E side of Palermo Honcut Hwy, ca. 20 ft S of Palermo Rd, E part of Palermo 57 Comment
  RSA0037008  Eriochloa acuminata var. acuminata Lowell A. Ahart 2013-10-12 19108 Butte On the east side of Palermo Honcut Highway, about 20 yards south of Palermo Road, Palermo. 51 Comment
  JEPS87137  Eriodictyon californicum Lowell Ahart 1992-5-9 6764 Butte On the north side of the dirt road, on the north side of the Thermalito Diversion Pool, Lake Oroville Recreation Area, about 2 (air) miles north of Oroville 76 Comment
  CHSC80857  Eriogonum dasyanthemum Lowell Ahart 2001-7-6 8884 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-BC259397  Eriogonum luteolum Lowell Ahart 1988-8-10 6171 Butte Along Poe Power House Road, about 1 mile north-west of the Poe Power House, about 1 mile south-east of Jarbo Gap 487 Comment
  CAS-BOT-BC259398  Eriogonum luteolum James L. Reveal 1975-8-24 3978 Butte Along California Highway 70 in Feather River Canyon at the turnoff to Pulga Comment
  CAS-BOT-BC263201  Eriogonum marifolium var. marifolium H. F. Copeland 1920-7-11 72 Butte Scotch John Meadows 1828 Comment
  CHSC44045  Eriogonum marifolium var. marifolium L. P. Janeway 1987-7-5 2458 Butte 2.5 mi north of Jones Mdw along rd to Philbrook Reservoir. 1920 Comment
  NY282106  Eriogonum microthecum var. laxiflorum R. R. Halse 1988-8-13 3756 Butte Along U.S. Hwy 20/26, 3.3 miles northeast of the entrance to Craters of the Moon National Monument, at milepost 233. 1680 Comment
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Feb 29 2016
  CAS-BOT-BC261715  Eriogonum nudum var. oblongifolium John Thomas Howell 1976-7-14 51815 Butte Feather River Canyon Highway just east of Jarbo Gap 640 Comment
  UC426904  Eriogonum nudum var. pubiflorum E. B. Copeland 1930-7-16 412 Butte along Butte Creek Jonesville, Butte Creek 1500 Comment
  CAS-BOT-BC269849  Eriogonum nudum var. pubiflorum Gladys L. Smith 1976-6-5 4534 Butte Roadside banks of Lower Feather River Canyon (Rte. 70) 304 Comment
  SEINET10479535  Eriogonum nudum var. pubiflorum Mary Susan Taylor 1981-7-10 Taylor 4058 Butte T22N R5E ne sec 6, Pulga quad. N side of Feather River Hwy 70 at Pulga bridge, on large serpentine outcrop, ca. 20 mi NE of Oroville. 1600 ft elev. 488 Comment
  CHSC13699  Eriogonum nutans 1946-6-24 Butte Comment
  SD1350  Eriogonum spergulinum var. reddingianum E. B. Copeland 1931-7-11 633 Butte Jonesville, Ridge between Jones and North Willow Creeks 1700 Comment
  CHSC69427  Eriogonum umbellatum var. ahartii Lowel Ahart 1997-8-19 7870 Butte On the south side of Lumpkin Ridge Road, about 1 1/2 miles east of Camp 18, about 8 miles (air) northeast of Feather Falls. 1280 Comment
  CAS-BOT-BC262206  Eriogonum ursinum A. A. Heller 1917-7-29 12855 Butte Summit above Jonesville 2133 Comment
  CAS-BOT-BC262211  Eriogonum ursinum E. B. Copeland 1930-7-6 s.n. Butte Jonesville 2050 Comment
  POM193385  Eriogonum ursinum E. B. Copeland 1930-7-6 s.n. Butte Jonesville. 2050 Comment
  CHSC44046  Eriogonum ursinum var. ursinum L. P. Janeway 1987-6-13 2197 Butte Along Ponderosa Way (Rim Rd) 3.8 NE of Jarbo Gap. East-facing roadcut. 883 Comment
  CHSC83018  Eriogonum wrightii var. trachygonum Lowell Ahart 2002-10-16 9981 Butte On the north side of North Honcut Creek, Peter Ahart Ranch, about 1 1/4 miles north and 2 3/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 42 Comment
  SEINET10474637  Eriophyllum lanatum Mary Susan Taylor 1975-4-11 Taylor 394 Butte Ca. 1/4 mi E of Salmon Hole, between Chico Creek and Upper Bidwell Park Rd, Upper Bidwell Park, Chico. Associates: Quercus spp., Pinus sabiniana, Galium aparine, Brodiaea hyacinthina. Foothill Woodland. 183 Comment
  CAS-BOT-BC308153  Eriophyllum lanatum var. grandiflorum A. A. Heller; H. E. Brown 1902-5-7 5483 Butte Berry Canyon near Clear Creek Comment
  CAS-BOT-BC308172  Eriophyllum lanatum var. grandiflorum A. A. Heller 1915-5-28 11909 Butte Cohasset, Sierra foothills Comment
  CHSC328  Eriophyllum lanatum var. grandiflorum 1954-5-30 Butte Paradise. 548 Comment
  CHSC38153  Eriophyllum lanatum var. grandiflorum J. D. Jokerst 1983-5-12 1765 Butte Table Mountain. West of Phanton Falls ca. 500 meters along the south edge of Coal Cr. Canyon. 365 Comment
  HSC38067  Eriophyllum lanatum var. grandiflorum Thomas W. Nelson, Jane P. Nelson 1976-5-10 2475 Butte S facing slope beside Hwy. 191, 1 mi. W of Paradise Comment
  POM358061  Eriophyllum lanatum var. grandiflorum D. McClain 1969-4-24 89 Butte 10 yards south of Cohasset Road, 5 miles west of Cohasset 488 Comment
  CAS-BOT-BC301466  Eriophyllum lanatum var. integrifolium A. A. Heller 1917-7-26 12821 Butte Butte Meadows 1402 Comment
  CHSC100872  Eriophyllum lanatum var. integrifolium L. P. Janeway; Linus Gog 2008-7-18 9437 Butte Northern High Sierra Nevada. Along Philbrook Creek between the east end of Philbrook Reservoir and Concow Road. 1689 Comment
  UCD103055  Erodium botrys A. A. Heller 1915-3-24 11777 Butte Near Dry Creek, 5 miles south of Pentz. Comment
  RSA715730  Erodium brachycarpum L. P. Janeway 2005-3-10 8357 Butte Cascade Range Foothills [error: actually Sierra Nevada foothills] E edge of city of Chico, N side of Humboldt Road 1.8 km NE of Bruce Road. 134 Comment
  SEINET10870231  Erodium brachycarpum Mary Susan Taylor 1980-3-1 Taylor 2331 Butte T21N R2E se 1/4 sec 15 and ne 1/4 sec 22. Hamlin Canyon quad. West end of Chico City Dump, on N side of Neal Rd, ca. 1 mi E of Hwy 99, ca. 7 mi S of Chico. 76 Comment
  CHSC44508  Erodium cicutarium Lowell Ahart 1988-3-27 5933 Butte Along the dirt road, west of the Poe Power House, east of the North Fork of the Feather River, about 2 miles south-east of Jarbo Gap. 274 Comment
  HSC67597  Erodium cicutarium J. P. Smith 1973-3-22 5912 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  CHSC71180  Erodium moschatum Lowell Ahart 1998-6-9 8002 Butte About 5/8 mile northwest of the lone oak tree, northwest of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 396 Comment
  RSA530363  Erysimum capitatum var. capitatum M. M. Boney 1897-1 s.n. Butte [No locality information provided] Comment
  CHSC44764  Erythranthe bicolor R. Banchero 1980-6-12 212 Butte Along Hwy 32, 0.3 mi N of its jct with Humbolt Rd, 0.4 mi S of the Butte County line. 1072 Comment
  CHSC91264  Erythranthe bicolor L. P. Janeway 2005-5-29 8398 Butte Northern High Sierra Nevada. Isolated block of serpentine between the east end of Hollywood Drive, Magalia and the upper end of Magalia Reservoir. 762 Comment
  CHSC112718  Erythranthe breweri Lowell Ahart 2013-10-26 19219 Butte South side of Philbrook Creek, below the high water line (strand) of Philbrook Reservoir. 1681 Comment
  CHSC94564  Erythranthe filicifolia Lowell Ahart 2006-9-11 13293 Butte South edge of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville. 431 Comment
  CAS-BOT-BC153867  Erythranthe glaucescens Frank W. Gould 1938-4-23 304 Butte Two miles north of Chico 60 Comment
  CAS-BOT-BC153868  Erythranthe glaucescens Mrs. J. H. Morrison 1932-3-20 s.n. Butte Durham Comment
  CHSC1789  Erythranthe glaucescens H. Summers 1929-3-25 Butte Butte Creek. Comment
  CHSC7109  Erythranthe glaucescens James M. Watson 1969-4-4 8 Butte 4.3 mi e of upper Bidwell Park entrance 50 yds. n of road. 213 Comment
  CHSC82612  Erythranthe glaucescens Tara Morgan 2002-4-23 34 Butte Found along the walking down the south rim trail located on the east side of Big Chico Creek. Located down from the green gate and left at the split in the trail to a seep area. 389 Comment
  CHSC45091  Erythranthe lewisii L. P. Janeway; R. A. Schlising 1988-7-22 3059 Butte Southeast part of upper Coon Hollow. 1889 Comment
  CHSC33578  Erythronium multiscapideum M. S. Taylor 1981-4-14 3535 Butte S side of Ponderosa Way. Ca. 1.10 mi n of its jct with Concow Rd, ca. 2 mi n of Lake Concow, ca. 3/4 mi s of Flea Mt. 1036 Comment
  UC843861  Erythronium multiscapideum A. A. Heller 1915-3-19 11774 Butte hills 12 mi ne Chico (near Rock Creek) Comment
  CAS-BOT-BC504527  Erythronium multiscapideum A. A. Heller 1915-3-19 11774 Butte Hills 12 miles northeast of Chico near Rock creek Comment
  CAS-BOT-BC504528  Erythronium multiscapideum Junea Kelley 1920-4-24 s.n. Butte Los Verjils Comment
  SEINET10839630  Erythronium multiscapideum Lowell Ahart 1983-4-14 Ahart 3934 Butte Ca. 3/8 mi sw of the Forbestown Reserv., ca. 4 mi ne of Forbestown. Yellow Pine Forest; 450 m. 450 Comment
  CAS-BOT-BC402640  Eschscholzia caespitosa A. A. Heller 1938-4-23 15052 Butte Just west of the summit between the West Branch and the North Fork of the Feather River on Highway #24 Comment
  CAS-BOT-BC402650  Eschscholzia caespitosa Mrs. C. C. Bruce 1897-4-1 2019 Butte Nelsons bar Comment
  CHSC24875  Eschscholzia californica T. F. Burnham 1976-4-24 17 Butte Ca. .5 mi s of Skyway, 5.8 mi e of Chico. 246 Comment
  CHSC24876  Eschscholzia californica M. B. Simpson 1976-4-4 13 Butte Ca. 2 yds w of Cohassett Hwy, ca. 7 mi n of Chico. 109 Comment
  CHSC11364  Eschscholzia lobbii Lowell Ahart 1971-4-13 Butte Peter Ahart Ranch, Honcut. 45 Comment
  SJSU5797  Eschscholzia lobbii N. Mudron 1971-4-21 Butte Bidwell Park Rd near Chico Comment
  UCR237308  Eschscholzia lobbii George K. Helmkamp, E. A. Helmkamp 2012-4-14 18759 Butte Northwestern Sacramento Valley, Cox Lane, 1.3 miles west of its intersection with La Loma Way, c. 10.3 mi. ENE (82 deg. ) of Gridley 91 Comment
  HSC86836  Eschscholzia lobbii Debby Reber 1981-4-14 18 Butte 1/4 mi. SW of Horseshoe Lake 91 Comment
  CAS-BOT-BC312029  Eucephalus breweri A. A. Heller 1917-7-29 12862 Butte Summit above Jonesville Comment
  CHSC25348  Euphorbia crenulata Marc P. Hayes 1977-4-22 18 Butte Ca. 2 km nw of Jarbo Gap, ca. 11 km w of Paradise. Forest, along Hwy 70, ca. 20 m n of Rd. 660 Comment
  CHSC34808  Euphorbia crenulata M. S. Taylor 1980-5-8 2615 Butte Ca. 3 mi n of Forest Ranch, ca. 1 mi e of Hwy 32. 853 Comment
  POM223073  Euphorbia crenulata H. F. Copeland 1923-4-21 626 Butte Chico Canyon. Comment
  SEINET12143834  Euphorbia serpillifolia Unknown 1984-1 4785 Butte W of Pacific Heights Road, ca 5 mi SW of Oroville 40 Comment
  RSA0106562  Euphorbia serpillifolia subsp. serpillifolia Lowell Ahart 2014-9-23 19877 Butte On the northeast part of Horeshoe Lake, about 100 yards northeast of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. 89 Comment
  CHSC49838  Euphorbia spathulata Vernon Oswald 1990-4-4 4151 Butte Lime Saddle Recreation Area on the West Branch of Lake Oroville, ca. 0.2 mi ne of Nelson Bar Launch, ca. 0.2 mi se of Lime Saddle Powerhouse. 304 Comment
  CHSC45377  Fallopia convolvulus Vernon Oswald 1987-8-9 3194 Butte Hwy 32, ca. 0.2 mi s of Lomo. 1170 Comment
  CHSC20093  Fatsia japonica M. S. Taylor 1975-4-8 450 Butte On ne side of Administration Building, California State University, Chico. 60 Comment
  CHSC52486  Festuca arundinacea J. D. Jokerst 1982-6-29 1546 B Butte Along the edges of various roads in the area. Grey Lodge Waterfowl Management Area, ca. 1/2 mile west of the headquarters on access road. Comment
  JEPS120933  Festuca bromoides Lowell Ahart 2013-5-18 18700 Butte About 100 yards E of the intersection of Forbestown Road and Black Bart Road, about 3.25 air miles SW of Forbestown. Comment
  CAS-BOT-BC278270  Festuca californica Lowell Ahart 1984-6-10 4701 Butte Along the road about 2 miles south-west of the Forbestown Diversion Dam, north-east of Forbestown 700 Comment
  SEINET10508610  Festuca grayi Lowell Ahart 1985-5-15 Ahart 4969 Butte West of Lunt Road, about 1/2 mile north of the inter- section of Lunt Road and Highway 70, north of Yankee Hill, N of Oroville. Comment
  CHSC116332  Festuca perennis Lowell Ahart 2015-10-20 20563 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
  CAS-BOT-BC278630  Festuca subulata Lowell Ahart 1987-7-8 5800 Butte Along Big Bar Mountain Road, about 3 miles south-west of Coyote Gap, south-east of Pulga 1280 Comment
  JEPS102419  Foeniculum vulgare Lowell Ahart 2001-6-13 8816 Butte Sides of the dirt road east of the large pump, on the south side of Evans-Reimer Road, about 1 mile east of Pennington Road, Gray Lodge Waterfowl Management Area, about 4 miles (air) SW of Gridley. 22 Comment
  SEINET10969447  Frangula purshiana Mary Susan Taylor 1981-5-21 Taylor 3758 Butte T22N R4E nw sec 15, Paradise SE quad. S side of Lake Concow, ca. 5 mi E of Paradise. Yellow Pine Forest; 2100 ft. 640 Comment
  CAS-BOT-BC53778  Frangula rubra Lowell Ahart 1989-5-29 6311 Butte About 1 mile north-east of Forbestown Road, about 2 1/2 miles north-east of Forbestown 822 Comment
  POM76518  Fraxinus dipetala C. C. Bruce 1897-03 1789 Butte Little Chico Comment
  RSA795644  Fraxinus dipetala L. Ahart 2012-4-20 17896 Butte West side of South Rim Trail, about 5/8 miles west of Highway 32, about 8.5 miles northeast of Chico, south part of Upper Bidwell Park. 255 Comment
  CHSC115408  Fraxinus latifolia M. Rogers 2013-5-4 Butte Pine Creek Unit of SRNWR near Hwy 32. 39 Comment
  POM76517  Fraxinus latifolia C. C. Bruce 1897-03 1789 Butte Little Chico Comment
  CHSC19921  Fritillaria affinis M. S. Taylor 1975-3-3 403 Butte Ca. 1/4 mi n of Richardson Springs Camp, ca. 8 mi n of Chico. 91 Comment
  CHSC33570  Fritillaria eastwoodiae M. S. Taylor 1981-4-27 3559 Butte Ridge between 21N33 and 21N80, ca. 1 mi sw of Bald Rock Rd, ca. 0.5 mi n of Zink, ca. 2 mi sw of Brush Creek. 1005 Comment
  CHSC49654  Fritillaria eastwoodiae Vernon Oswald 1984-4-9 1137 Butte Feather Falls Trail, near the overlook at the falls. 609 Comment
  RSA0000355  Fritillaria eastwoodiae J. H. Morrison 1932-4-17 s.n. Butte Near Durham. Comment
  CAS-BOT-BC130426  Fritillaria pluriflora Mrs. C. C. Bruce 1897-2-1 2023 Butte Near Chico Comment
  CHSC2282  Fritillaria pluriflora N. Maxwell 1929-3-4 Butte Near Shasta Union School. 60 Comment
  CHSC92557  Fritillaria recurva L. P. Janeway 2005-4-25 8366 Butte Northern High Sierra Nevada. Plumas National Forest; ridgetop northern end of Rocky Ridge; just above Rim Road (Ponderosa Way) 200 m east-southeast of junction with Concow Road; head of upper side drainage of Flea Valley Creek. 988 Comment
  CHSC52129  Galium aparine Patricia Haberkern 1974-3-24 20 Butte Ca. 0.25 mi. NE Sycamore Pool off South Park Drive, Bidwell Park, Chico. 60 Comment
  RSA754579  Galium aparine L. Ahart 2009-4-17 15548 Butte S slope of a ridge, about 150-200 yards W of Highway 32, near the S boundary, Upper Bidwell park, about 5 air miles NE of Chico. 373 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
  CHSC93865  Galium bolanderi Lowell Ahart 2006-6-9 12661 Butte On the east side of Bardees Bar Road, north of the small stream, south of the large stream, about 1/8 mile northwest of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga. 385 Comment
  SEINET10836823  Galium bolanderi Mary Susan Taylor 1981-5-29 Taylor 3815 Butte T22N R5E ne sec 22, Pulga SW quad. Chino Ridge, ca. 0.5 mi N of 22N31, ca. 3 air mi SE of Pulga. Along trail up ridge; filtered to open light. Comment
  CHSC51914  Galium grayanum var. grayanum L. P. Janeway; R. A. Schlising, B. Castro 1988-7-30 3139 Butte Ridge SE from Snow Mtn. 2103 Comment
  CHSC116732  Galium parisiense Lowell Ahart 2016-5-25 20876 Butte On north side of the water ditch, about 200 yards south of La Porte Road, about 1/4 miles southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 mile (air) northeast of Honcut. 44 Comment
  CHSC116994  Galium parisiense Lowell Ahart 2016-6-4 20925 Butte On the north side of Lumpkin Road, about 100 yards north of McCabe Creek, about 3 miles (air) west of Forbestown. 387 Comment
  CHSC55586  Galium porrigens var. tenue Dan Morgan 1991-4-21 19 Butte Indian Springs Rd., .3 mi W of Neal Rd., Paradise. 243 Comment
  CHSC61010  Galium spurium var. echinospermum Lowell Ahart 1993-6-20 6988 A Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  SEINET10869783  Galium triflorum Mary Susan Taylor, Lowell Ahart 1981-8-15 Taylor 4194 Butte T25N R5E se 1/4 se 1/4 36. Jonesville SW. N side of Coon Hollow Rd, 1.2 mi E of its jct with Humbug Rd, ca. 12 mi NE of Stirling City. 5500 ft. 1676 Comment
  CHSC39346  Gamochaeta argyrinea Lowell Ahart 1983-6-26 4152 Butte Along the edge of Ponderosa Way, about 1 1/2 miles south-east of the East Fork of Canyon Creek, about 14 1/2 miles north-east of Oroville. The sign gives Big Bridge Road instead of Ponderosa Way. 575 Comment
  CHSC6607  Gardenia jasminoides M. MacArthur 1968-6-17 294 Butte SE yard of Building U on the Chico State College Campus. 60 Comment
  CHSC77052  Garrya fremontii L. P. Janeway 2000-1-29 6629 Butte Cascade Range Foothills. Along old Hwy 32, 300 ft North of current Hwy 32, 9.4 mi north-northeast of Hwy 99/Chico. Ridge top between Big Chico Creek and Little Chico Creek. 518 Comment
  RSA134772  Garrya fremontii Percy C. Everett, E. K. Balls 1959-10-20 23910 Butte 9.4 mi NE from Chico, State Hwy 32, toward De Sabla. 793 Comment
  CAS-BOT-BC282603  Gastridium phleoides A. A. Heller 1902-5-15 5555 Butte Near Biggs Comment
  CHSC8595  Gastridium phleoides M. Banning 1969-4-18 83 Butte Table Mt., 1/2 mi. S. of Oregon City junction 30' inside fence. 487 Comment
  CHSC91465  Gastridium phleoides Lowell Ahart 2005-7-13 12149 Butte About 20 yards east of the intersection of Forbestown Road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown, about 12 miles (air) east of Oroville. 759 Comment
  UCD169894  Gastridium phleoides Lowell Ahart 2008-5-21 14780 Butte On the north side of the South Fork of Feather River, about 150 yards east of where Sucker Creek enters the South Fork of the Feather River. About 1/4 mile northwest of the Ponderosa Dam. 246 Comment
  JEPS114971  Gastridium ventricosum Lowell Ahart 2008-5-21 14780 Butte Dry bare granite soil, below the high water line of Lake Oroville, on the north side of the South Fork of the Feather River, where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam 246 Comment
  UC579315  Gastridium ventricosum P. L. Johannsen 1935-5-27 677 Butte four mi se Chico; Chico Quad. 83 Comment
  CHSC108324  Gaultheria ovatifolia Lowell Ahart 2011-8-23 17653 Butte On the west edge of the large meadow, Pinkard Creek flows through the meadow, 40 yards north of the corral, about 1 mile north of Lost Creek Reservoir Dam, about 4 miles (air) northeast of Clipper Mills. 1133 Comment
  RSA718070  Gayophytum heterozygum L. Ahart 2006-7-16 13004 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
  SEINET10453076  Gayophytum humile Mary Susan Taylor 1978-7-19 Taylor 1779 Butte On E side of Upper Scotts John Road, ca. 2 mi N of its junction with Scotts John Road, ca. 6 mi NE of Jonesville. 1890 Comment
  CAS-BOT-BC208059  Genista monspessulana Richard R. Halse 2006-8-3 6986 Butte Along State Hwy. 32 ca. 16.3 miles northeast of Chico, near junction with Platte Mountain Road 1000 Comment
  CHSC90079  Genista monspessulana Ross Rowland 2001-4-25 53 Butte On east side of Longview Road about 20 yards north of Skyway in Paradise. 616540mE/4400340mN/zone 10N. 463 Comment
  UC1564769  Gentiana newberryi V. Oswald and L. Ahart 1989-8-22 3956 Butte 3.5 mi (air) se Jonesville (on the e side of Humbug Rd, Butte Creek House Meadow) 1767 Comment
  CHSC26691  Gentianopsis simplex M. S. Taylor; M. Hayes, R. Schlising 1977-8-17 1495 Butte Meadow on s side of Humbug Rd, ca. 1 mi n of Snag Lake. 1828 Comment
  SBBG17317  Geranium carolinianum M. Vincent 1962-4-15 171 Butte intersection of Bernum and Pentz Rds Comment
  JEPS120522  Geranium purpureum L. P. Janeway 2012-5-29 10826 Butte Northern High Sierra Nevada. Plumas National Forest; along Ponderosa Way 1.9 road km north of Lower Forbestown Road; 1.8 air km south of the Ponderosa Reservoir dam. Comment
  CAS-BOT-BC459405  Geum macrophyllum E. B. Copeland 1929-7-25 s.n. Butte Jonesville 1500 Comment
  SEINET12318330  Gilia capitata Unknown 1970-1 59 Butte 2.3 mi on Upper Park Road, Bidwell Park, Chico Comment
  CDA40045  Gilia capitata subsp. mediomontana L. Ahart 2006-5-19 12637 Butte 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. Comment
  CHSC40922  Gilia capitata subsp. pedemontana Ahart; Jokerst 1985-5-10 4953 Butte 10 yards north of the east branch of Potter Ravine, about 2 1/4 miles north of Oroville Dam. 320 Comment
  POM65177  Gilia capitata subsp. pedemontana Copeland 1907-5-30 3277 Butte Chico. Comment
  SEINET10496747  Gilia capitata subsp. pedemontana Mary Susan Taylor 1979-8-4 Taylor 2174 Butte T23N R5E center of S border sec. 22/27. Ca. 1 mi N of Cresta Powerhouse on Hwy 70, ca. 30 mi N of Oroville; granitic soils. 488 Comment
  CHSC100984  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
  JEPS28831  Githopsis pulchella subsp. campestris L. R. Heckard with R. Bacigalupi 1962-6-1 1305 Butte about 3 mi e Chico (just of Centerville road, about 1 mi e of its junction with the Paradise road (Skyway)) 67 Comment
  SEINET10906066  Githopsis specularioides Lowell Ahart 1973-5-6 Ahart 213 Butte Swedes Flat road near Bangor 457 Comment
  CHSC51368  Glinus lotoides Vernon Oswald; Lowell Ahart 1990-10-11 4460 Butte Dark Canyon arm of Lake Oroville, about 4 miles south of Jarbo Gap. Occasional plants on drying mud on the bed of Dark Canyon Creek, below the high-water line of the lake. 243 Comment
  JEPS120592  Glinus lotoides Lowell Ahart 2013-11-18 19287 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
  CHSC78223  Glyceria declinata Lowell Ahart 2000-5-21 8377 Butte Slickens from the Cherokee mine, on the east side of Clark Road (Highway 191), about 200 yards south of Dry Creek, about 10 miles (air) northwest of Oroville. 60 Comment
  SEINET10475276  Gnaphalium beneolens Lowell Ahart 1983-9-17 Ahart 4435 Butte Along edge of dirt road, ca. 2.5 mi s of Stirling City. Yellow Pine Forest; 1100 m. 1100 Comment
  CAS-BOT-BC302466  Gnaphalium palustre Mrs. C. C. Bruce 1897-6-1 2110 Butte Little Chico Comment
  CHSC31594  Gnaphalium palustre L. Ahart 1972-6-21 115 Butte Peter Ahart Ranch, Honcut. 45 Comment
  UC478463  Gnaphalium palustre E. B. Copeland 1931-7-18 694 Butte in places along Butte Creek; Jonesville Comment
  SEINET10938047  Gnaphalium palustre Mary Susan Taylor 1978-9-9 Taylor 1911 A Butte Along Bull Run Road, ca. 10-11 mi S of Butte Meadows in northern portion of the county; Yellow Pine Forest. 1463 Comment
  CAS-BOT-BC305289  Grindelia hirsutula J. D. Jokerst; M. S. Taylor 1979-10-13 389 Butte Jordan Hill Rd (Ponderosa Way), 2.8 mi n of jct with Concow Creek, ca. 4 mi ne of Lake Concow 609 Comment
  UC1876147  Grindelia hirsutula T. A. Ranker and P. G. Trapp 1994-6-17 1625 Butte Pence Road, south of Paradise (Cherokee quad. 7.5 min topographic map). 396 Comment
  CHSC14007  Grindelia hirsutula var. davyi D. Isle 1969-5-17 478 Butte On e side of turn-off from Upper Bidwell Park to Bare Hole, in Upper Bidwell Park, Chico. 182 Comment
  CHSC97029  Grindelia hirsutula var. davyi L. P. Janeway 2007-6-19 9061 Butte Northern High Sierra Nevada. Plumas National Forest; at the end of the dirt road at the upper end of the penstock of the Forbestown Powerhouse; 2.6 air km east of Ponderosa Dam, 500 m northeast of South Fork Feather River. 518 Comment
  UCR219266  Grindelia hirsutula var. davyi George K. Helmkamp, E. A. Helmkamp 2009-9-5 15587 Butte Sacramento Valley, Lower Honcut Road, 0.9 rd. mi. west of Honcut, 7.8 mi. SE (111 deg. ) of Gridley 34 Comment
  POM110256  Hastingsia alba C. C. Bruce 1892-06 2434 Butte [no location specified] Comment
  SEINET10475536  Hazardia whitneyi Mary Susan Taylor 1979-10-13 Taylor 2269 Butte T22N R4E sec 32. Yellow Pine Forest, in open overlooking clearcut along Jordan Hill Road (Ponderosa Way on some maps), ca. 9.2 mi N of its jct with Concow Road, ca. 2 mi SE of Magalia. With Jim Jokerst. 945 Comment
  CHSC108794  Hedera helix Lowell Ahart; John Dittes, Josephine Guardino 2012-4-6 17806 Butte On the north side of Big Chico Creek, Lost Park in Bidwell Park, city of Chico. 60 Comment
  CHSC30790  Hedypnois cretica M. S. Taylor; L. Ahart 1979-5-6 2005 Butte Peter Ahart Ranch, Honcut. 15 Comment
  RSA81717  Hedypnois cretica Roxana S. Ferris 1952-5-16 12476 Butte 5 miles S of Cherokee on road to Oroville. Comment
  SEINET10839193  Helenium puberulum Mary Susan Taylor 1977-6-25 Taylor 1384 Butte Foothill Woodland-Yellow Pine Forest transition zone, on Ponderosa Way betwe en Cohasset and Forest Ranch. 610 Comment
  CHSC93866  Helianthella californica var. nevadensis Lowell Ahart 2006-6-9 12644 Butte Along the north side of the service road to Bardees Bar along the North Fork of the Feather River, about 50 yards east of the electric tower, on the east side of Highway 70, about 2 3/4 miles (air) southwest of Pulga. 534 Comment
  CHSC14125  Heliotropium curassavicum L. V. Ritter 1969-6-15 383 Butte N and T Corporation Land, near Murphy Slough along bank of Sacramento River. Comment
  CAS-BOT-BC305846  Helminthotheca echioides Lowell Ahart 1981-7-26 3009 Butte About 0.5 mile north east of the Gray Lodge Waterfowl Management Headquarters, southwest of Gridley 35 Comment
  UC1609075  Hemizonella minima Lowell Ahart 1993-6-26 7021 Butte about 1 mi w Lost Creek Reservoir (e side of dirt road); Mooreville Ridge 1188 Comment
  UC478461  Hemizonella minima E. B. Copeland 1931-7-12 696 Butte ridge between Jones Creek and North Willow Creek; Jonesville 1700 Comment
  CAS-BOT-BC314992  Hemizonella minima M. S. Taylor 1981-5-13 3700 Butte On ridge above Foreman Creek, ca. 0.5 mi. W of 23N15 ca. 1.5 mi. S of its jct. with Four Trees Road, ca. 2 air mi. W of Elks Retreat on Oroville-Quincy Hwy. 1310 Comment
  CAS-BOT-BC314996  Hemizonella minima E. B. Copeland 1931-7-12 696 Butte Between Jones and North Willow Creeks, Jonesville 1700 Comment
  CAS-BOT-BC309788  Hemizonia congesta subsp. luzulifolia H. M. Hall 1914-8-1 9825 Butte Near Chico Comment
  CAS-BOT-BC309787  Hemizonia congesta subsp. luzulifolia Lowell Ahart 1982-9-9 3768 Butte About 100 meters north of the Check-in-Station, Gray Lodge, about 12 miles south-west of Gridley 35 Comment
  CHSC42582  Heracleum lanatum Vernon Oswald 1985-6-3 1803 Butte Near Willow Creek Bridge on Hubmboldt Rd. ca. 1 mi w of Jonesville. 1487 Comment
  RSA4484  Heracleum maximum E. B. Copeland 1930-6-29 665 Butte Jonesville. 1500 Comment
  CHSC50661  Herniaria hirsuta subsp. hirsuta Lowell Ahart 1990-6-16 6507 Butte Along the edge of the dirt road, just south of the Forbestown Generator, on the south side of the Forbestown Reservoir. 487 Comment
  JEPS106224  Hesperevax acaulis var. acaulis Lowell Ahart 2004-4-4 10710 Butte About 20 yards north of the faint old fence ridge, about 175 yards east of Wilber Road, east-northeast of the high hill crossed by Wilber Road, pasture, about 3 miles (air) west of Thermalito 48 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
  CHSC44869  Hesperevax acaulis var. robustior Lowell Ahart 1979-5-29 1907 Butte Near a dirt road, about 1/2 mile east of Kunkle Creek, about 2 1/2 miles south-east of Paradise. 457 Comment
  CHSC65890  Hesperevax caulescens Vernon H. Oswald 1996-4-20 7392 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. Sacramento Valley. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. In the S half of the S paddock of Tract 7, Sanctuary II. 32 Comment
  JEPS98429  Hesperolinon micranthum Lowell Ahart 2000-5-31 8427 Butte 3 mi SE of Paradise (just W of Lake Oroville, about 400 yds E of where Kunkle Creek enters Lake Oroville, E of the Kunkle Power House) 286 Comment
  CHSC54876  Heteranthera limosa Vernon H. Oswald; Lowell Ahart 1991-8-28 4851 Butte Rice Experiment Station on the south side of Hwy 162, ca. 3.5 miles north-northwest of Biggs. On the margins of rice fields. 30 Comment
  CHSC11860  Heterocodon rariflorum E. B. Copeland 1929-7-16 398 Butte Jonesville. 1550 Comment
  CHSC30084  Heterocodon rariflorum M. S. Taylor; J. D. Jokerst, L. Ahart, R. Schlising 1980-7-20 3191 Butte Big Bald Rock. Ca. 3 mi e of Lake Madrone. 997 Comment
  CHSC30385  Heterocodon rariflorum J. D. Jokerst 1980-7-18 996 Butte Top of North Table Mtn., ca. 100 m NW of the fct. of Cherekee Rd. and the E edge of the Mt. 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
  UC1609085  Heterocodon rariflorum Lowell Ahart 1993-6-20 6981 Butte about 1 mi nw Lost Creek Reservoir Dam; Mooreville Ridge, Jackass Flat 1158 Comment
  SEINET10460699  Heterocodon rariflorum Edwin B. Copel 1929-7-16 Copeland 398 Butte Jonesville 1550 Comment
  SEINET10906090  Heterocodon rariflorum Lowell Ahart 1973-5-29 Ahart 246 Butte Peter Ahart Ranch, Honcut 46 Comment
  CHSC45192  Heteromeles arbutifolia Lowell Ahart 1975-6-19 791 Butte Along North Honcut Creek, Peter Ahart Ranch, about 1 1/4 miles north and 3 miles east of Honcut, about 12 miles south of Oroville. 45 Comment
  CHSC77444  Heteromeles arbutifolia Laura Bogni 1997-3-25 24 Butte Magalia grove. West side of Coutelenc Rd.; 1 mi. due W of Sawmill Peak; 1/2 mi. SE of Magalia Reservoir. 701 Comment
  CAS-BOT-BC311010  Heterotheca oregona John Thomas Howell 1959-9-26 35087 Butte Cuesta Power House, North Fork of Feather River 426 Comment
  UCD116345  Hibiscus lasiocarpos var. occidentalis G. L. Webster; G. L. Stebbins 1967-8-27 7531 Butte Rancho Llano Seco, near end of west arm of Eddy Lake. Comment
  UCD116346  Hibiscus lasiocarpos var. occidentalis G. L. Webster; G. L. Stebbins 1967-8-27 7533 Butte Howard Slough, along Biggs-Princeton road c. 1/2 mile W of Butte Creek. Comment
  CHSC6026  Hibiscus militaris M. MacArthur 1968-6-12 161 Butte Just outside NW entrance to Life Science bld., Chico State College. 60 Comment
  UC924222  Hoita macrostachya H. S. Reed 1939-7-10 295 Butte nw Chico; Sacramento River 57 Comment
  CAS-BOT-BC280710  Holcus lanatus M. S. Taylor 1978-6-24 1662 Butte Montane Meadow, on n side of Old Humboldt Rd across from Butte Meadows 1371 Comment
  UCD84907  Holcus lanatus L. Y. Leonard 1919-6-16 X 3097 Butte Chico. Comment
  UCD113340  Holodiscus discolor var. microphyllus H. F. Copeland 1928-8-14 s.n. Butte Bet. Jones Creek and Scotch-John Creek, near Jonesville. Comment
  CAS-BOT-BC150114  Holodiscus microphyllus var. glabrescens E. B. Copeland 1929-7-17 375 Butte Above Jonesville 2000 Comment
  CAS-BOT-BC311883  Holozonia filipes A. A. Heller 1914-7-13 11565 Butte Mt. Ida Ranch, 10 miles east of Oroville Comment
  CAS-BOT-BC285090  Hordeum marinum subsp. gussoneanum Lowell Ahart 1982-4-29 3397 Butte Ca. 0.75 mi. W of the sign-in station, Gray Lodge, ca. 12 mi. SW of Gridley 35 Comment
  CAS-BOT-BC536587  Horkelia californica var. elata John Thomas Howell 1975-7-21 51334 Butte Sierra Nevada. North Branch Feather River 304 Comment
  CAS-BOT-BC536588  Horkelia californica var. elata Lowell Ahart 1983-6-21 4101 Butte Along Bloomer Hill Road, 3 miles north-west of the Oroville Quincy Highway, about 16 miles north-east of Oroville 700 Comment
  CAS-BOT-BC143358  Horkelia tridentata Lowell Ahart 1982-5-8 3413 Butte About 1/2 mile south-west of the Forbestown Res., about 4 1/2 miles north-east of Forbestown 800 Comment
  POM319240  Horkelia tridentata Patricia Wilder 1971-6-23 5208 Butte Oregon Hill road 4.1 miles SE of Challenge, W of California State Hwy 49. W slope of the Sierra Neveda, Yuba River 732 Comment
  CHSC43124  Horkelia tridentata subsp. flavescens L. P. Janeway 1987-5-28 2113 Butte Edge of ridge at Coyote Gap F.S. Station. 1325 Comment
  CAS-BOT-BC536253  Horkelia tridentata var. tridentata H. F. Copeland 1929-6-9 1226 Butte Jonesville 1524 Comment
  CHSC36515  Hosackia stipularis var. ottleyi L. Ahart 1982-6-1 3530 Butte Above road, ca. 1/8 mi n of jct of Lower Forbestown Rd and Ponderosa Way, along Ponderosa Way, ca. 5 mi w of Forbestown. 700 Comment
  CHSC46290  Hosackia stipularis var. ottleyi Vernon Oswald 1989-5-11 3765 Butte Santos Rd (from Hwy 32) on Doe Mill Ridge. 487 Comment
  CHSC116329  Hydrocotyle umbellata Lowell Ahart 2015-10-20 20571 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
  CHSC116340  Hydrocotyle umbellata Lowell Ahart 2015-11-18 20656 Butte On the west side of the Feather River, about 1/2 mile south of Palm Avenue, about 1 1/2 miles southeast of the intersection of Palm Avenue and Larkin Road, about 5 miles (air) northeast of Gridley. 26 Comment
  CHSC691  Hydrophyllum occidentale 1947-6-1 Butte Stirling City cut-off to Forest Ranch 701 Comment
  CAS-BOT-BC175967  Hypericum Lowell Ahart 1977-7-19 s.n. Butte Peter Ahart Ranch, Honcut. Along North Honcut Creek 50 Comment
  CHSC38469  Hypericum anagalloides Vernon Oswald 1983-8-19 1008 Butte Upper Bidwell Park, Chico, ca. 200 ft. n of Upper Park Rd. at Diversion Dam. 134 Comment
  CHSC43295  Hypericum anagalloides Lowell Ahart 1987-9-4 5882 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
  SFV2318  Hypericum anagalloides M. L. Vincent 1960-7-16 116 Butte Sierra Nevada 4 miles south of Paradise at small reservoir off Pentz Road. 450 Comment
  SEINET10472175  Hypericum concinnum Mary Susan Taylor 1980-6-14 Taylor 2879 Butte T21N R5E ne sec 25. Big Bend quad. On N sid eof Zink Road, near entrance to Zink Ranch, ca. 2 mi E of Lake Madrone; Yellow Pine Forest. 762 Comment
  UC204399  Hypericum perforatum A. A. Heller 1914-7-13 11570 Butte hills ca. 5 mi. e. Oroville (also between Red Bluff & Redding, and in Sacramento canyon some miles below Delta <in> Shasta Co.) Comment
  CAS-BOT-BC401334  Hypericum scouleri H. F. Copeland 1930-7-24 1316 Butte Jonesville Comment
  CHSC21168  Hypochaeris glabra M. S. Taylor 1975-5-3 216 Butte Ca. 500 yds e of Hwy 70, ca. 15 mi n of Oroville. Comment
  CHSC30304  Hypochaeris glabra M. S. Taylor 1980-5-27 2682 Butte Big Bald Rock, ca. 3 mi e of Lake Madrone. 996 Comment
  JEPS43465  Iris chrysophylla Joan O. Danielson 1966-4-6 17 Butte Oregon Gulch Road 609 Comment
  UC1188250  Iris hartwegii L. W. Lenz and E. K. Balls 1955-5-13 20697 Butte 7 mi ne Pentz Trading Post (on road to U.S. Hwy 40 Alt from Oroville-Magalia road) 579 Comment
  CAS-BOT-BC133512  Iris hartwegii A. A. Heller 1939-3-23 15357 Butte 3 miles below Paradise on the Pentz road Comment
  CHSC24886  Iris macrosiphon W. A. Vaccaro 1976-4-17 2 Butte Pop. ca. 2.4 mi. E. of Centerville on So. side of Humbug Rd. 128 Comment
  CHSC27771  Iris macrosiphon David Bendix 1978-4-18 15 Butte 5 m sw of intersection of Neal Road with Skyway, Paradise. 530 Comment
  RSA135847  Iris macrosiphon Lee W. Lenz, E. K. Balls 1955-5-13 20692 Butte Along road crossing from Oroville-Magalia road to U.S. Highway 40 alt. via Pentz 488 Comment
  SEINET3876030  Iris macrosiphon D. W. McNeal, Todd McIntyre 1989-4-18 3369 Butte Shady oak woodland on the margin of a barren serpentine outcrop above Lunt Rd., 0.4 mi. North of Highway #70.; 0 Comment
  CHSC111853  Isatis tinctoria L. P. Janeway 2014-5-22 11259 Butte Northern High Sierra Nevada. Plumas National Forest; along the Oroville-Quincy Hwy in Brush Creek, 0.6 km northeast of the up-per end of Bald Rock Road. 1098 Comment
  UC398879  Isoetes bolanderi E. B. Copeland 1929-7-29 329 Butte above Jonesville 1750 Comment
  JEPS127197  Isoetes howellii Lowell Ahart 2016-5-30 20881 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 1/8 miles east of Honcut, about 12 miles (air) southeast of Oroville. Comment
  POM5203  Isoetes howellii E. B. Copeland 1903-5-30 3281 Butte Chico. Comment
  CHSC113273  Isolepis setacea Lowell Ahart 2014-5-13 19467 Butte Along the sides of McCabe Creek, below the high water line of Lake Oroville, about 200 yards southwest of the poor parking area, on the east side of McCabe Creek, about 11 miles (air) east of Oroville. 244 Comment
  JEPS98569  Isolepis setacea Lowell Ahart 2000-6-6 8454 Butte 5 mi (air) E of Oroville Dam (bottom of old gold mining pit, E of where dirt road crosses Oregon Gulch creek, 1/4 mi NE of cemetary, 1 1/2 mi S of Crystal Hill) 304 Comment
  CAS-BOT-BC112640  Isolepis setacea Lowell Ahart 1980-7-29 2509 Butte Along Lower Forbestown Road. 750 Comment
  CHSC30733  Jensia rammii M. S. Taylor 1980-5-27 2707 Butte Little Bald Rock, ca. 3 mi s of Brush Creek. 1016 Comment
  CAS-BOT-BC340244  Jensia rammii Lowell Ahart 1980-4-21 2105 Butte Peter Ahart Ranch, Honcut 50 Comment
  CHSC33363  Juglans californica var. hindsii S. Posner 1972-9-20 Butte 2 ft. west of Nord Ave., 1/4 mile north of 1st Street, Chico. Comment
  JEPS113851  Juncus Lowell Ahart 2007-6-12 14079 Butte Along the north edge of Bald Rock Road, about 100 yards northeast of the intersection of Bald Rock road and Rockefeller Road, about 13 miles (air) northeast of Oroville 982 Comment
  CHSC34202  Juncus acuminatus J. D. Jokerst; L. Ahart 1981-9-26 1487 Butte Bidwell River State Park (Chico Landing) ca 5.0 mi W of Chico E bank Sacramento River. Comment
  CHSC37392  Juncus acuminatus R. A. Schlising 1980-8-31 3974 Butte Richvale Vernal Pools, 1/4 mi s of jct Hwy 162 to Oroville and Hwy 99, along latter and across from Thermalito Afterbay. Comment
  CHSC97299  Juncus acuminatus Lowell Ahart 2007-8-19 14488 Butte About 2 1/4 miles (air) southeast of Honcut, about 13 miles (air) southeast of Oroville. 49 Comment
  CHSC7194  Juncus balticus M. I. Moore 1969-4-26 16 Butte Upper Bidwell Park, ca. 1000 yds. nw of Salmon Hole - Big Chico Creek. 106 Comment
  JEPS114980  Juncus brachyphyllus Lowell Ahart 2008-6-13 14821 Butte East side 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
  CHSC96860  Juncus bufonius var. bufonius Lowell Ahart 2007-6-3 13970 Butte West of the bridge across Concow Creek, west side of Jordan Hill Road, about 1 1/2 miles (air) southwest of Concow Reservoir. 415 Comment
  JEPS114391  Juncus bufonius var. bufonius Lowell Ahart 2008-5-30 14791 Butte Along a small drainage, northwest part of the top of Big Bald Rock, about 14 miles (air) northeast of Oroville 976 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
  CHSC90947  Juncus bufonius var. congestus Lowell Ahart 2005-4-18 11737 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
  CHSC37377  Juncus capitatus R. A. Schlising 1982-4-24 4228 Butte Richvale Vernal Pools, 1/4 mi s of jct Hwy 162 to Oroville and Hwy 99, along latter and across from Themalito Afterbay. 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
  RSA726659  Juncus effusus subsp. pacificus L. Ahart, L. P. Janeway, Linnea Hanson 2007-7-13 14300 Butte About 30 yards east of a poor dirt road, about 1 1/2 milea (air) northeast of Clipper Mills. 1046 Comment
  UC183502  Juncus effusus subsp. pacificus A. A. Heller 1913-6-4 10773 Butte n of Oroville (Table Mountain Olive Ranch) Comment
  RSA755033  Juncus effusus var. pacificus L. Ahart 2009-6-30 15980 Butte Along a small flowing stream about 55 yards SE of the gate, about 45 yards E of Ten Mile House Road, Upper Bidwell Park, about 3/4 air miles W of Highway 32, about 10 miles NE of Chico. 270 Comment
  CHSC69728  Juncus ensifolius Lowell Ahart 1997-10-20 7928 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
  JEPS104263  Juncus ensifolius Lowell Ahart 2003-6-30 10336 Butte In the gutter on the n side of Fields Ridge Rd, n of the Ponderosa Reservoir, ca 3 mi (air) n of Forbestown. 491 Comment
  RSA742781  Juncus ensifolius L. Ahart 2008-7-23 15142 Butte About 10 yards west 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
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Feb 2 2010
  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
  UCSB63871  Juncus howellii Ahart, Lowell 1997-8-1 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; T25N, R5E, Section 33 1524 Comment
  JEPS114891  Juncus kelloggii Lowell Ahart 2008-5-30 14794 Butte Dry to damp granite soil, small meadow, bottom of an old gold mined area, about 150 yeards west of the cemetery, about 150 yards north of Oregon Gulch, about 10 miles (air) northeast of Oroville 305 Comment
  JEPS118340  Juncus laccatus Lowell Ahart 2011-8-23 17647 Butte In the large meadow, Pinkard Creek flows through the meadow, east of the corral, about 1 mile north of Lost Creek Reservoir Dam, about 4 miles (air) northeast of Clipper Mills 1133 Comment
  CAS-BOT-BC110103  Juncus leiospermus var. ahartii Lowell Ahart 1978-5-1 1692 Butte Peter Ahart Ranch, Honcut. Comment
  CHSC31910  Juncus leiospermus var. ahartii L. Ahart 1974-4-24 423 Butte In small vernal pool. Peter Ahart Ranch, Honcut. 45 Comment
  UC1586561  Juncus leiospermus var. ahartii Lowell Ahart 1991-5-2 6647 Butte about 2 1/4 mi n and 1/2 mi e of Honcut (about 12 mi s of Oroville, Peter Ahart Ranch); Peter Ahart Ranch 39 Comment
  RSA0000294  Juncus leiospermus var. ahartii L. Ahart 1982-5-1 3402 Butte Peter Ahart Ranch, ca 2 mi N and 1/2 m E of Honcut, between Marysville and Oroville. 50 Comment
  CHSC93503  Juncus leiospermus var. leiospermus Lowell Ahart 2006-5-8 12584 Butte Margins of a vernal pool where there is basalt shelfing, about 3/4 mile northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 396 Comment
  JEPS117320  Juncus leiospermus var. leiospermus Lowell Ahart 2010-5-22 16726 Butte About 100 yards east of Cherokee Road, about 200 yards northeast of parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville 385 Comment
  JEPS122233  Juncus leiospermus var. leiospermus Lowell Ahart 2014-4-20 19392 Butte About 1 1/8 miles northwest of the parking area on the west side of Cherokee Road, about 7 miles (air) north of Oroville. Comment
  CAS-BOT-BC110771  Juncus mertensianus V. Oswald; L. Ahart 1988-7-29 3652 Butte Ca. 5 miles (air) southeast of Jonesville on the ridge running eastwards from the peak of Snow Mountain. 2097 Comment
  CHSC105531  Juncus orthophyllus Lowell Ahart 2010-9-21 17217 Butte On damp bare soil, open meadow like area in red fir forest, near a poor camp, 30 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrood Reservoir. 1917 Comment
  JEPS98325  Juncus oxymeris Lowell Ahart 2000-6-17 8486 Butte 2 mi S of Paradise (about 1/4 mi NE of Kunkle Reservoir, E of the Pentz Magalia Road) 548 Comment
  CHSC57213  Juncus parryi L. P. Janeway 1987-7-5 2455 Butte At end of old logging road east of the Concow Road and 1.0 mi southwest of Jones Meadow. At granite outcroppings overlooking Balsam and Big Kimshew Creeks. 1798 Comment
  CHSC102623  Juncus tenuis Lowell Ahart 2009-6-18 15910 Butte On the banks of a small wash, about 60 yards west of the dredger piles along North Honcutt Creek, about 2 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles southeast of Oroville. 59 Comment
  SD243238  Juncus trilocularis Peter F. Zika 2011-7-6 25540 Butte Northern Sierra Nevada Highlands: above Oroville-Quincy Highway, 0.8 road miles S of Stevens Ridge Road, 2.5 air miles NE of Wild Yankee Hill. 829 Comment
  CHSC97204  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
  JEPS113761  Juncus usitatus Lowell Ahart 2007-7-31 14400 Butte On the south strand of Thermalito Afterbay, about 150 yards north of Highway 162, about 5 1/4 miles west of the intersection of Highway 162 and Highway 70, about 5 3/4 miles (air) west of Oroville 34 Comment
  JEPS120888  Juncus usitatus Lowell Ahart 2013-6-18 18808 Butte Duck field 60 yards W of Parking Lot 14, Gray Ladge Wildlife Management Area, about 7 air miles SW of Gridley. Comment
  CAS-BOT-BC80923  Juniperus californica A. A. Heller 1939-12-10 15486 Butte Nearl road toward Paradise about 1 1/2 miles above the Oroville road junction Comment
  UCD80781  Keckiella corymbosa CNPS SN Foothill Team 2005-7-13 Survey Butte North Table Mountain. Comment
  CAS-BOT-BC237822  Keckiella lemmonii Carl B. Wolf 1941-7-23 11051 Butte Northern Sierra Nevada. 7/10 mi. NW. of Magalia at NW. side of Magalia Reservoir 731 Comment
  CAS-BOT-BC237826  Keckiella lemmonii Carl B. Wolf 1941-7-23 11051 Butte Northern Sierra Nevada. 7/10 mi. NW. of Magalia at NW. side of Magalia Reservoir 731 Comment
  CHSC93992  Kelloggia galioides R. D. Fischer 2004-6-20 762 Butte Sierra Nevada Mountains, north-east corner of Butte County and ca. 2 miles north of Butte Meadows off Scout Road. 1356 Comment
  POM161683  Kelloggia galioides E. B. Copeland 1929-7-16 s.n. Butte Jonesville. 1550 Comment
  POM183167  Kelloggia galioides H. F. Copeland 1930-7-21 1327 Butte Jonesville. 1524 Comment
  JEPS103604  Kickxia elatine Lowell Ahart 2002-10-17 9993 Butte On 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
  SD239921  Kickxia elatine G. K. Helmkamp, E. A. Helmkamp 2009-9-5 15596 Butte Sacramento Valley: Palermo Road 0.3 mi. east of its junction with CA-70, 6.1 mi ENE (76a^z) of Biggs. 57 Comment
  CHSC103677  Koeleria phleoides Lowell Ahart 2010-4-30 16585 Butte Area of erosion control, disk golf area, on a ridge about 200 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 369 Comment
  CHSC38365  Lactuca saligna Vernon Oswald 1983-6-29 798 Butte Upper Bidwell Park, Chico, at the edge of Parking Area L at Diversion Dam. 121 Comment
  SEINET10872060  Lactuca scariola var. integrata Mary Susan Taylor 1979-11-11 Taylor 2280 Butte T20 N R1E. Ca. 6 mi S of Chico, on W side of Goodspeed-Watt Road. With Jim Jokerst. 34 Comment
  CHSC38366  Lactuca serriola Vernon Oswald 1983-6-27 773 Butte Upper Bidwell Park, Chico, near the n. boundary of the park in the depression w of the Easter Cross. 88 Comment
  JEPS96112  Lactuca serriola Vernon H. Oswald and Lowell Ahart 1996-7-22 8081 Butte US Fish and Wildlife Service parcel between 7 Mile Lane and Sacramento River (on w side of levee at sw corner of Tract 6, Sanctuary 1); Sacramento River Wildlife Refuge, Llano Seco Unit 30 Comment
  CDA7502  Lactuca serriola T. C. Fuller 1959-10-2 Butte Rice Experiment Station, ca. 3 miles north of Biggs. 0 Comment
  JEPS19943  Lagophylla glandulosa R. F. Hoover 1936-5-21 1169 Butte 7 mi n Chico Comment
  UC828870  Lagophylla glandulosa A. A. Heller 1914-5-14 11401 Butte treeless plain near Clear Creek Comment
  CAS-BOT-BC341293  Lagophylla glandulosa Lowell Ahart 1977-9-20 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  SEINET10839203  Lagophylla glandulosa Mary Susan Taylor 1980-7-6 Taylor 3058 Butte T23N R1E nw sec 20, Richardson Springs quad; ca. 1 mi E of Meridian Rd, ca. 1/4 mi NE of its jct with Hwy 99, ca. 8 mi N of Chico. With R.A. Schlising. 67 Comment
  CHSC28915  Lamium amplexicaule M. S. Taylor 1980-3-1 2329 Butte West end on n side of Neal Rd, ca 1 mi e of Hwy 99, ca. 7 mi s of Chico. 76 Comment
  RSA0119045  Lapsana communis Lowell Ahart 2014-7-7 19564 Butte About 5 yards east of the Skyway, about one-mile north of Stirling City. 1142 Comment
  RSA715477  Lasthenia californica L. Ahart 2005-5-11 11791 Butte 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. 359 Comment
  POM219389  Lasthenia californica H. F. Copeland 1929-4-4 1542 Butte Canyon of Chico Creek. Comment
  CAS-BOT-BC324474  Lasthenia ferrisiae A. A. Heller 1914-5-13 11394 Butte Along Butee Creek between Durham and Nelson 53 Comment
  CAS-BOT-BC354125  Lasthenia fremontii Gordon H. True 1971-4-8 6442 Butte Gray Lodge Wildlife Area, Valley Grassland, 7 miles SW of Gridley. 24 Comment
  CHSC10647  Lasthenia fremontii Lowell Ahart 1970-5-12 Butte Peter Ahart Ranch, Honcut. 45 Comment
  UC725646  Lasthenia fremontii A. A. Heller 1939-4-14 15379 Butte 1 mi n Rock Creek (along the road e of U.S. Highway #99E) 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
  CAS-BOT-BC352921  Lasthenia glaberrima Lowell Ahart 1979-5-25 s.n. Butte 2 miles south of Palermo. 35 Comment
  UCSC004638  Lasthenia glabrata subsp. glabrata Lowell Ahart 2005-6-1 11843 Butte T23N, R15E, Section 30, Hwy 70, east of the Plumas Co Airport, about 3 miles east of Beckwourth 1412 Comment
  CHSC77987  Lathyrus angulatus Lowell Ahart 2000-5-13 8351 Butte Near the margin of the Thermalito Afterbay, on the south side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. 42 Comment
  CHSC76940  Lathyrus jepsonii var. californicus Margie Collins 1894-5-1 Butte Chico Creek. Comment
  CHSC89010  Lathyrus latifolius H. Gray 2003-6-3 Butte Plumas National Forest. Milsap Bar Road. 762 Comment
  JEPS119626  Lathyrus latifolius Lowell Ahart 2012-6-14 18196 Butte Annie's Glen, Lower Bidwell Park, Chico. Comment
  RSA517347  Lathyrus sphaericus Barbara J. Ertter, Lowell Ahart 1986-4-13 5887 Butte 2 air miles NNE of Honcut between Oroville and Marysville, Peter Ahart Ranch (mostly used as sheep pasture). 30 Comment
  RSA21944  Lathyrus sulphureus H. C. Cantelow 1939-5-19 s.n. Butte Brush Creek Ranger Station. Comment
  CDA4167  Lathyrus tingitanus T. C. Fuller 1967-6-1 15921 Butte West side of Highway 70 to Marysville, 2.5 miles south of Oroville. 0 Comment
  HSC38062  Layia fremontii Thomas W. Nelson, Jane P. Nelson 1976-5-10 2470 Butte Beside SR 191 just N of its junction with SR 70 Comment
  SEINET10474770  Layia fremontii Mary Susan Taylor 1980-3-28 Taylor 2409 Butte T22N R2E north center border sec 30. Vernal pool area in Valley Grassland, just E of Chico, between Humboldt Rd, cand Hwy 32, ca. 1/4 mi E of Forest Ave., ca. 1.5 mi E of Hwy 99; area soon to be developed. With J.D. Jokerst. 76 Comment
  CHSC101742  Leontodon saxatilis subsp. longirostris Lowell Ahart 2009-5-23 15750 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 Highwat 32, about 10 miles northeast of Chico. 203 Comment
  CHSC109659  Leontodon saxatilis subsp. longirostris Lowell Ahart 2012-5-14 18054 Butte North edge of the path to Table 12, south of Big Chico Creek, north of the paved road, Lower Bidwell Park, Chico. 74 Comment
  CAS-BOT-BC339119  Leontodon saxatilis subsp. saxatilis Lowell Ahart 1972-6-20 s.n. Butte Peter Ahart Ranch, Honcut. Near North Honcut Creek 150 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
  CHSC20877  Lepechinia calycina Robert A. Schlising 1963-6-7 2613 Butte 3.1 mi s of Cohasset along Cohasset Highway. Comment
  JEPS115570  Lepechinia calycina Lowell Ahart 2009-5-23 15759 Butte About 10 miles northeast of Chico, Upper Bidwell Park, about 1/4 mile west of the intersection of Highway 32 and Ten Mile House Road. On the east side of Guardians Trail by shrubs, about 150 yards southwest of Ten Mile House Road 407 Comment
  SEINET13946688 Image available Lepechinia calycina A. A. Heller 1915-1 11906 Butte Near Cohasset, near the upper limit of the digger pine in the Sierra foothills Comment
  CHSC35764  Lepidium appelianum R. A. Schlising; J. D. Jokerst 1982-6-4 4287 Butte N of Oroville and n of Jarbo Gap along Hwy 70 above Feather River Canyon. Roadside. Comment
  CHSC49830  Lepidium campestre Vernon Oswald 1990-4-4 4146 Butte Vinton Gulch access to the West Branch of Lake Oroville, ca. 0.5 mi (air) north of Cherokee. Near the streamlet draining into the lake. 268 Comment
  SEINET10448476  Lepidium dictyotum Mary Susan Taylor 1982-4-28 Taylor 4351 Butte T17N R1E se/s sec 13. Pennington quad. Graylodge Waterfowl Refuge, n side of Rutherford Rd, 1/8 mi w of Pennington Rd, ca. 12 mi sw of Gridley. 70 ft. 21 Comment
  CHSC66665  Lepidium latifolium Vernon H. Oswald 1996-7-17 8062 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. At Dan's Camp, north end of Riparian Sanctuary. 30 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
  CAS-BOT-BC12800  Lepidium perfoliatum Lowell Ahart 1981-4-6 2742 Butte A little west of the Gray Lodge Headuarters, ca. 8 miles southwest of Gridley. 35 Comment
  SEINET10448292  Lepidium perfoliatum Mary Susan Taylor 1982-4-28 Taylor 4375 Butte T17N R1E sc border 14/23. Pennington quad. Graylodge Wildlife Refuge, e side of rd, ca. 1/4 mi se of HQ, ca. 12 mi sw of Gridley. 65 ft. 20 Comment
  CHSC35634  Lepidium strictum R. E. Preston 1982-4-4 217 Butte Dirt road on dike, Gray Lodge State Wildlife Area, ca. 0.3 mi w of Headquarters. 20 Comment
  UCR237300  Lepidium strictum George K. Helmkamp, E. A. Helmkamp 2012-4-14 18748 Butte Northern Sacramento Valley, Robinsons Corner, Simpson Rd, just east of junction of East Gridley Road and CA-70 23 Comment
  POM93997  Lepidium strictum C. C. Bruce 1897-06 1949 Butte Chico Comment
  JEPS88261  Leptochloa fascicularis Vernon H. Oswald and Lowell Ahart 1996-5-27 7664 .1 Butte Sanctuary II Sacramento River National Wildlife Refuge, Llano Seco Unit (seasonal marsh on s side of Tract 1.1, US Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River) 33 Comment
  CHSC41470  Leptosiphon acicularis Lowell Ahart 1986-4-4 5243 Butte About 2 1/2 miles north and 2 1/2 miles east of Honcut, about 12 miles south of Oroville. 82 Comment
  CHSC38595  Leptosiphon bicolor Vernon Oswald 1983-4-6 288 Butte Upper Bidwell Park, Chico, ca. 300 ft n of Upper Park Rd. and 2.4 mi e of the power lines (between Parking Areas R and S). 256 Comment
  CHSC58937  Leptosiphon harknessii Lowell Ahart 1992-7-29 6887 Butte Near Coon Hollow Creek, about 1 mile north-east of the Carr Mine, about 3/4 mile north-west of Lotts Lake. 1798 Comment
  CAS-BOT-BC341740  Lessingia nana Mrs. Jos. Clemens 1922-10-1 s.n. Butte Near Chico Comment
  CHSC27731  Lessingia nemaclada Robert A. Schlising 1978-10-10 3343 Butte Highway 70, Feather River Canyon, just south of Arch Rock Tunnel at P.G. and E. Roadside Rest Area. Comment
  CAS-BOT-BC341798  Lessingia nemaclada A. A. Heller 1940-9-28 15841 Butte Upper end of the Honey Run grade at Paradise Comment
  CHSC43878  Leucothoe davisiae L. P. Janeway 1987-6-13 2218 Butte Along Concow Rd, just SW of jct with road to Five Corners and Stirling City. 1188 Comment
  CHSC42589  Ligusticum grayi Vernon Oswald 1985-8-28 1932 Butte Scotts John Rd. 0.2 mi n of the road connecting Humboldt and Humbug Rds. 1780 Comment
  JEPS117418  Ligusticum grayi Lowell Ahart 2010-9-28 17243 Butte On damp black rich soil, meadow edges or under red fir trees, about 50 yards east of the poor dirt road, 30 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrood Reservoir 1886 Comment
  SEINET10454496  Ligusticum grayi Mary Susan Taylor 1982-8-16 Taylor 4997 Butte T24N R4E se/se sec 11. Pulga NW quad. At seep and creek crossing rd to Bald Mt, ca. 1/4 mi sw of Bald Mt, ca. 3 mi ne of Stirling City. Mixed Evergreen Forest; 5400 ft. 1646 Comment
  CDA34704  Lilaea scilloides L. Ahart 2010-5-16 16683 Butte About 1/4 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. Comment
  CHSC115483  Lilium humboldtii subsp. humboldtii L. P. Janeway; Emily Meigs Doe 2015-4-14 11665 Butte Northern High Sierra Nevada. Plumas National Fore ... Field redacted by CHSC, contact the data manager for more information 747 Comment
  CAS-BOT-BC110624  Limnanthes alba Lowell Ahart 1980-4-28 2113 Butte Peter Ahart Ranch, near Honcut. 50 Comment
  RSA176424  Limnanthes alba A. A. Heller 1926-4-12 s.n. Butte 8 miles north of 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
  CHSC111363  Limnanthes alba subsp. versicolor Lowell Ahart 2012-5-4 17986 Butte About 200 feet south of stream in Beatson Hollow, about 1 1/4 mile NW of the iron gate on the north side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  SEINET12183046  Limnanthes douglasii Unknown 1978-1 37 Butte ca .25 mi w of Cherokee Road, ca 6.5 mi S of Highway 70, ca 5.5 mi N of Oroville 518 Comment
  SJSU15294  Limnanthes douglasii subsp. rosea Lisa Morton 2002-3-24 11 Butte Upper Bidwell Park, Base of N. Rim Trail 50 Comment
  SEINET10870241  Limnanthes douglasii var. rosea Mary Susan Taylor 1976-3-23 Taylor 1030 Butte Abundant in vernal pool, SW corner of junction of Broyles Road and Hwy 99, ca. 11 mi N of Chico. 61 Comment
  CHSC35691  Limnanthes floccosa subsp. californica J. D. Jokerst 1982-4-12 1528 Butte N side Shippee Rd 1/2 mi E of Hwy 99 along side road and in a small pasture between houses N of Shippee Rd. Comment
  CHSC54010  Limnanthes floccosa subsp. californica Vernon H. Oswald 1991-3-30 4476 Butte Hwy 149, 0.9 mi northwest of Hwy 70 at Wicks Corner, ca. 7 mi northwest of Oroville. In drainage on top of road cut on the south side of the highway. 80 Comment
  UC1397276  Limnanthes floccosa subsp. californica T. Niehaus 1965-3-28 371 Butte Table Mountains Comment
  CHSC46298  Limosella acaulis Vernon Oswald 1989-5-30 3790 Butte Sheep Camp Ditch and Vandergrift Lake on the w side of the n end of Cana-Pine Creek Rd. 54 Comment
  JEPS120655  Limosella acaulis Lowell Ahart 2013-10-26 19218 Butte On the south side of Philbrook Creek, below the high water line (strand) of Philbrook Reservoir. Comment
  SEINET12326965  Linanthus bicolor M. C. Earley 1982-1 4 Butte 11 mi ESE of Chico 111 Comment
  SEINET10496794  Linanthus ciliatus Lowell Ahart, Peter Ahart 1984-5-28 Ahart 4645 Butte About 1 mi NE of the West Branch Bridge, ca. 2 mi S of Old Yankee Hill, ca. 16 mi NE of Oroville; Foothill Woodland; 450 m. 450 Comment
  CHSC29040  Linanthus dichotomus J. D. Jokerst 1980-3-31 532 Butte Several miles S of Cohasset Hwy, eastern portion of Cohasset Ridge. 670 Comment
  CHSC38596  Linanthus dichotomus Vernon Oswald 1983-3-6 127 Butte Upper Bidwell Park, Chico, on the north rim ca. 0.5 mi e of the power lines. 274 Comment
  JEPS118329  Linanthus filipes Lowell Ahart 2011-4-28 17332 Butte Along trail in the Disc Golf Area, about 130 yards north of the entrance to the Disc Golf Area, about 40 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 398 Comment
  SEINET9369866  Linanthus filipes Unknown 1996-7-9 13171 Butte Plumas National Forest Comment
  UC726830  Linanthus filipes A. A. Heller Apr 1938 15023 a Butte e of Chico (just n of the golf links) Comment
  CHSC47691  Lindernia dubia var. anagallidea Lowell Ahart 1980-8-16 2577 Butte The edge of North Honcut Creek, about 2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 54 Comment
  CHSC89817  Lindernia dubia var. anagallidea G. D. Barbe; June McCaskill 1990-9-5 4393 Butte Sacramento Valley. On edge of rice checks, fields of the Rice Experiment Station, W. Hamilton Rd., at Riceton Hwy, north of Biggs. Comment
  JEPS104373  Lindernia dubia var. anagallidea Lowell Ahart 2003-6-23 10305 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
  UCR146289  Lindernia dubia var. dubia Ellen Dean, Et al. 2001-8-20 857 Butte Biggs UC Field Station, N of town of Biggs, west of jct. of Hwys 99 and 162; just south of main research buildings at field station, west of RR tracks and c. 2 E-W running dirt roads south of buildings; along E-W running dirt road 30 Comment
  CHSC107370  Linum bienne Lowell Ahart 2011-6-5 17365 Butte On the west edge 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. 42 Comment
  CHSC55620  Lipocarpha L. P. Janeway 1987-6-5 2142 Butte Border area of small pool, near confluence of Ram Creek and French Creek. 609 Comment
  UC600634  Listera convallarioides W. F. Wright 1926-7-12 324 Butte near Butte Creek Comment
  UC600635  Listera convallarioides H. F. Copeland 1930-7-25 Butte Jonesville Comment
  NY43799  Lithocarpus densiflorus var. densiflorus S. Bianco 1995-11-3 1049 Butte 4236 Kakini Rd, E of Concow Rd off Yellowwood Rd (Private land holding) 762 Comment
  POM106397  Lithocarpus densiflorus var. densiflorus C. C. Bruce 1898-05 2477 Butte Day Hill. Comment
  UCD102715  Lithophragma bolanderi Michael A. Vincent; Ethan H. Freid 1998-4-6 8135 Butte Table Mountain. Comment
  CHSC48896  Lithophragma glabrum Vernon Oswald; Lowell Ahart 1987-5-14 2397 Butte Road paralleling Scotts John Creek, 0.6 mi n of the road connecting Humboldt and Humbug Roads. 1780 Comment
  UCD102726  Lithophragma heterophyllum Robert Kehlor 1951-4-14 32 Butte J. M. Kehlor Ranch, 6.25 miles east of Oroville. Comment
  CHSC14091  Lithophragma parviflorum L. V. Ritter 1969-4-16 164 Butte Ca. 4.2 mi s of Cherokee, ca. 100 yds w of Cherokee Rd, on Table Mountain, ca. 6 mi n of Oroville. Comment
  CHSC28986  Logfia filaginoides R. A. Schlising 1980-3-17 3513 Butte Above Big Chico Creek and golf course in Bidwell Park, Chico. 152 Comment
  HSC38061  Logfia gallica Thomas W. Nelson, Jane P. Nelson 1976-5-10 2468 Butte Beside SR 191 just N of its junction with SR 70 Comment
  CAS-BOT-BC269077  Lolium perenne John Thomas Howell 1975-6-15 51056 Butte Chico 60 Comment
  CAS-BOT-BC269078  Lolium perenne John Thomas Howell 1951-6-26 27518 Butte Big Bend Mt. 609 Comment
  RSA718953  Lolium perenne subsp. multiflorum L. Ahart 2006-9-28 13382 Butte East side of the North Fork of the Feather river, on the west side of Highway 70, about 50 yards southwest of the Shady Rest Area south of the Arch Rock Tunnel. 445 Comment
  CHSC10558  Lolium temulentum Lowell Ahart 1962-5-9 Butte Peter Ahart Ranch, Honcut. 39 Comment
  SEINET10592064  Lolium temulentum A. Arthur Heller 1914-6-2 Heller 11475 Butte Hills 8 miles north of Oroville. Comment
  CHSC28975  Lomatium dasycarpum subsp. tomentosum J. D. Jokerst 1980-3-12 469 B Butte Ca 1.0 mi E of Chico Municipal Airport. 60 Comment
  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
  CHSC31066  Lomatium utriculatum M. S. Taylor 1979-6-12 2302 Butte Between Magalia serpentine and Feather River, ca. 1/4 mi down a dirt rd from Jct of Coutelenc Rd and the Skyway. 670 Comment
  CHSC11859  Lonicera conjugialis E. B. Copeland 1930-6-27 478 Butte Jonesville 1550 Comment
  CHSC39677  Lonicera hispidula Lowell Ahart 1983-8-21 4066 Butte Just off of Bloomer Hill Road, about 1/2 mile west of the Oroville Quincy Highway, about 15 miles north-east of Oroville. 400 Comment
  UCD137320  Lonicera hispidula E. D. Phelps 1930-9-23 2150 Butte Pulga. Comment
  CAS-BOT-BC240691  Lonicera interrupta A. A. Heller 1914-5-18 11408 Butte Collected near Hog Spring on the Chico-Butte Meadow road. Between Chico and Forest Ranch, 8 miles from Chico Comment
  CHSC3213  Lonicera japonica Susan Carrauthers 1966-5-9 149 Butte Next to foot bridge near Physical and Life Science building, Chico State College. Comment
  CHSC52339  Lotus corniculatus Pauleen Broyles 1987-5-21 1044 Butte The Nature Conservancy Vina Plains Preserve. Abundant on N bank of Pine Creek. Comment
  UC726261  Lotus denticulatus A. A. Heller 1940-5-13 15616 Butte 3 mi w Chico (along State Highway 32) Comment
  UC204729  Lotus humistratus A. A. Heller 1914-5-8 11377 Butte the Clear Creek to Paradise grade Comment
  SEINET12161339  Lotus humistratus S. M. Grossberg 1978-1 12 Butte ca .5miWNW of Hwy 32, 9.2miNE of Chico 366 Comment
  SEINET12161683  Lotus micranthus B. L. Wiley 1975-1 6 Butte 5.4mi up Cherokee Rd from junct w/ Table Mtn Blvd 488 Comment
  UC1609037  Lotus nevadensis Lowell Ahart 1993-7-31 7135 Butte 1.5 mi se Bald Mountain (ne of Stirling City, on the w side of the dirt road) 1493 Comment
  JEPS94851  Lotus oblongifolius var. oblongifolius Vernon H. Oswald and Lowell Ahart 1998-8-11 9465 Butte USFS 28N35 at a branch of Wildcat Creek 1 mi n of Four Trees-Coyote Gap Road; Wildcat Creek 1396 Comment
  SEINET10452006  Lotus purshianus Mary Susan Taylor 1978-7-21 Taylor 1795 Butte Vicinity of Lake Madrone, at Oroville- Quincy Hwy turnoff, ca. 10 mi NE of Oroville; Yellow Pine Forest. 610 Comment
  SEINET10452008  Lotus purshianus Mary Susan Taylor 1980-6-14 Taylor 2873 Butte T21N R6E nw sec 29. Big Bend quad. Little Bald Rock, on granite dome, ca. 4 mi E of Lake Madrone. 1016 Comment
  UC566229  Lotus purshianus var. purshianus C. G. Albertus 1933-7-14 44 Butte 0.5 mi w Fourteen Mile House; Chico Quad. 335 Comment
  UCD107092  Ludwigia palustris P. B. Kennedy 9-10 Aug 1921 s.n. Butte Experiment Station, Biggs. Comment
  CHSC1135  Ludwigia peploides subsp. peploides D. Bower 1953-7-16 Butte 3A Llano Seco. Marsh. 30 Comment
  CHSC93351  Lunaria annua Lowell Ahart 2006-5-3 12554 Butte About 75 yards southeast of the Concow Grange building, on the west side of Big Bend Road, about 1 1/4 miles (air) south of Jarbo Gap. 548 Comment
  SEINET10448485  Lunaria annua Mary Susan Taylor 1983-3-13 Taylor 5243 Butte T23N R5E se sec 31. Pulga quad. Community of Pulga, off n side of Hwy 70, ca. 20 mi ne of Oroville. l600 ft. 488 Comment
  CAS-BOT-BC198305  Lupinus Charles Piper Smith 1949-4-21 49123 Butte Nimshew, 0.7 miles southwest, Oroville Road Comment
  SEINET12164082  Lupinus albifrons Unknown 1984-1 5 Butte Oroville. ca 50 yds W of State Hwy. 70 .4miS of junc w/ Oroville Dam Blvd 46 Comment
  CAS-BOT-BC201349  Lupinus albifrons var. albifrons Mrs. J. H. Morrison 1932-4-9 s.n. Butte Durham Comment
  CHSC65102  Lupinus angustiflorus Vernon H. Oswald 1995-8-2 7171 Butte High Cascade Range. Scotts John Rd. (Forest Rd. 26N11) 2.2 mi N of Jonesville Rd. (Forest Rd. 26N27). 1859 Comment
  CHSC31938  Lupinus arbustus J. D. Jokerst; L. Ahart, M. S. Taylor 1980-8-2 1031 Butte Humboldt Peak, ca. 1/4 mi. below and E of summit adjacent to large mudlflow, northern most portion of county. 1828 Comment
  JEPS119696  Lupinus bicolor Lowell Ahart 2012-5-2 17952 Butte West of the Government Pole Line, Upper Bidwell Park, about 1 mile east of Chico. Comment
  HSC23337  Lupinus bicolor D. C. Polen 1971-4-8 30 Butte 3.5 mi. E on Skyway from its junction with Hwy. 99E Chico. Comment
  UCD107191  Lupinus bicolor A. A. Heller 1914-2-2 11166 Butte Canon hf Big Chico creek 6 miles east of Chico. Comment
  SEINET10838149  Lupinus bicolor subsp. tridentatus Johnson 1978-4-16 Johnson 2 Butte Corolla blue, with purple-spotted white patch on banner. E side of cohasset Rd. At lassen ave., 3 Mi. N of chico, butte co, calif. At edge of moist Pasture in gravelly loam with grass and other annuals of valley grassland. 61 Comment
  JEPS119589  Lupinus bicolor var. tridentatus Lowell Ahart 2012-4-17 17874 Butte About 100 yards south of where the road turns north, about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville. Comment
  HSC58937  Lupinus densiflorus var. lacteus G. L. Clifton 1975-5-29 4195 Butte Near Pulga, close to Belden 488 Comment
  CHSC97022  Lupinus grayi L. P. Janeway 2007-7-23 9122 Butte Northern High Sierra Nevada. Plumas National Forest; south-facing road cutbank along Road 21N92, on eastern Watson Ridge 1.8 km north-northwest of the mouth of Kenebeck Creek at Fall River and Nelsons Crossing. 1201 Comment
  SEINET10452086  Lupinus latifolius Lowell Ahart 1984-6-8 Ahart 4665 Butte At the Ponderosa Dam, ca. 2 mi NW of Forbestown; Yellow Pine Forest; 370 m. 370 Comment
  UC726131  Lupinus microcarpus var. densiflorus A. A. Heller 1938-5-15 15094 Butte along the railroad near Gridley; near Gridley Comment
  SBBG121558  Lupinus nanus L. P. Janeway 2006-5-24 8607 Butte near E shores of Lake Wyandotte, ca. 7.0 air km ESE of Oroville Dam 422 Comment
  UCD108993  Lupinus nanus A. A. Heller 1914-4-21 11311 Butte Chico. Comment
  CHSC940  Lupinus nanus var. apricus E. Canfield 1904-4-9 Butte Hooker Oak field. 76 Comment
  CHSC94029  Lupinus pachylobus R. D. Fischer 2005-4-9 733 Butte Sierra Nevada foothills, adjacent Hwy. 32, below Forest Ranch in the Big Chico Creek Ecological Reserve off Lookout Trail. Plants growing on roadbed of the main Overlook Trail in old refuse pile. 487 Comment
  JEPS104268  Lupinus pachylobus Lowell Ahart 2003-4-8 10050 Butte Along the dirt road, ca 1/8 mi nw of the iron gate and fence, nw of Cherokee Rd, North Table Mountain, ca 7 mi (air) n of Oroville. 326 Comment
  JEPS115377  Lupinus pachylobus Lowell Ahart 2009-6-3 15831 Butte Meadow, about 30 yards south of the gate, in the middle of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) wast of Highway 32, about 10 Miles northeast of Chico 209 Comment
  JEPS87401  Lupinus pachylobus Vernon H. Oswald and Lowell Ahart 1993-3-24 5243 Butte e side Dry Creek Canyon (n of the historical site of Pentz, on the e side of a secondary drainage entering Dry Creek 2 mi n Pentz Rd. Area burned during previous summer); e side of Dry Creek Canyon n of historical site of Pentz 262 Comment
  UC865362  Lupinus pachylobus A. A. Heller 1938-4-23 15048 Butte on the Feather River Highway between the Las Plumas Road and summit; on the Feather River Highway Comment
  CAS-BOT-BC8229  Lupinus pennellianus Amos Arthur Heller 1940-6-5 15705 Butte Along the Feather River Higway between Arch Rock Tunnel and Pulga Comment
  CHSC90039  Lupinus stiversii Robert C. Hill 1990-4-12 18 Butte At entrance to Enterprise Boat Launch. 13 mi e of Oroville, 1 mi w of Enterprise Bridge. 457 Comment
  SEINET10452666  Lupinus stiversii Mary Susan Taylor 1980-4-18 Taylor 2529 Butte On dry open bluff, on E side of Humbug Road, ca. 3 mi SW of Nimshew; Foothill Woodland. With J.D. Jokerst. 518 Comment
  CHSC105797  Luzula cascadensis Lowell Ahart 2010-9-28 17260 Butte West edge of a 10 acre meadow, about 50 yards east of the poor dirt road, about 20 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1886 Comment
  CHSC107577  Luzula cascadensis Lowell Ahart 2011-8-23 17652 Butte On the west edge of 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
  CHSC52710  Luzula cascadensis L. P. Janeway 1988-6-25 2868 Butte Near Coon Creek and near Bull Hill Road 1.0 mi from Skyway. On gravel bar along small creek (Coon Cr). 1554 Comment
  CDA13297  Luzula comosa G. F. Hrusa, T. D. Wilfred 1996-7-9 13145 Butte Plumas National Forest; Jordan Creek, above waterfall nr. confluence with Marble Creek. S of Hwy 162 near Roger's Cow Camp. Comment
  POM196138  Luzula comosa E. B. Copeland 1929-7-16 345 Butte Jonesville. 1550 Comment
  RSA718093  Luzula comosa L. Ahart 2006-7-16 12970 Butte About 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1570 Comment
  SEINET10472472  Luzula comosa Mary Susan Taylor, L. Hanson 1981-3-12 Taylor 3398 Butte T20N R6E sw sec 23. Forbestown quad. Along s side of 20N53.2, ca. 1 mi sw of Feather Falls community. Yellow Pine Forest; 2900 ft. 884 Comment
  JEPS110339  Luzula comosa var. laxa Lowell Ahart 2006-7-16 12970 Butte In the 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
  RSA0060489  Luzula macrantha Peter F. Zika 2011-7-6 25533 Butte Mooreville Ridge Road, 0.5 road miles N of dam on Lost Creek Reservoir. 1020 Comment
  CDA42943  Lycopus americanus L. Ahart 2012-10-2 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. Comment
  CHSC52224  Lycopus americanus L. P. Janeway 1988-8-16 3155 Butte Near the Sacramento River at S end of Ryan Island, ca 1/2 mi S of the Ord Ferry Rd bridge. 28 Comment
  JEPS119908  Lycopus americanus Lowell Ahart 2012-10-20 18511 Butte On the north side of Big Chico Creek, south of Table 34, west of Cedar Grove, Lower Bidwell Park, Chico. 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
  NY366307  Lythrum salicaria L. Ahart 1984-8-19 4782 Butte North of the state burrow area, west of Pacific Heights Road, about 5 miles southwest of Oroville 40 Comment
  CDA5124  Lythrum salicaria L. Ahart 2000-7-2 8551 Butte On the east side of Highway 70, a little north of Garden Drive, north of Thermalito, about 1 1/2 miles north of Oroville. Comment
  CHSC42367  Lythrum tribracteatum Lowell Ahart 1987-5-10 5608 Butte In idle rice field, 1/8 mile south of Central House Road, east of the Western Pacific Railroad, about 1 1/2 miles north and 1 mile west of Honcut, about 12 miles south of Oroville. 30 Comment
  UC1609282  Lythrum tribracteatum Lowell Ahart 1993-5-15 6938 Butte about 2 mi w of Biggs (on n side of Biggs Princeton Road); Biggs Princeton Road 30 Comment
  POM362160  Madia exigua L. S. Rose 1937-6-10 37359 Butte Hurleton 579 Comment
  UC830847  Madia exigua Lewis S. Rose 1937-6-10 37359 Butte Hurleton 579 Comment
  POM362159  Madia exigua L. Ahart 1984-6-8 4666 Butte At the Ponderosa Dam, ca. 2 mi NW of Forbestown 370 Comment
  CHSC36516  Madia gracilis L. Ahart 1982-5-28 3438 Butte Near North Honcut Creek, near the Peter Ahart Ranch, ca. 1 1/4 mi n of 3 mi e of Honcut. 50 Comment
  SEINET3450908  Madia gracilis Unknown 2003-6-30 10323 A Butte Forbestown, Forbestown, about 2 miles air northwest, southeast side of Ponderosa Way, about 2.5 miles by road southwest of the Ponderosa Dam 570 Comment
  POM219437  Madia gracilis subsp. gracilis E. B. Copeland 1931-8-14 697 Butte Jonesville. 1500 Comment
  CAS-BOT-BC345241  Madia subspicata A. A. Heller 1915-5-17 11878 Butte Along Chico Creek 5 miles east of Chico Comment
  UC1442644  Madia subspicata Lowell Ahart 1978-10-29 Butte along the La Porte Rd. 4 mi ne Bangor 350 Comment
  CAS-BOT-BC345234  Madia subspicata Lowell Ahart 1982-5-28 3438 Butte Sutter Buttes Area. Near North Honcut Creek, near the Peter Ahart Ranch, about 1.25 miles north and 3 miles east of Honcut 50 Comment
  CAS-BOT-BC510731  Maianthemum racemosum subsp. amplexicaule E. B. Copeland 1931-6-16 616 Butte Jonesville, at the Summit 640 Comment
  CHSC45221  Malacothrix floccifera Lowell Ahart 1979-6-9 1927 Butte About 1/4 mile east of Magalia. 640 Comment
  HSC94149  Malacothrix floccifera G. Fred Hrusa, T. D. Wilfred 1996-7-9 13185 Butte Approx 1 mi. on 22N89. Immediately S of Rogers Cow Camp on Hwy. 162. 1150 Comment
  UC196260  Marah fabacea A. A. Heller 1914-3-12 11193 Butte Canyon of Big Chico Creek 76 Comment
  CHSC13931  Marah watsonii J. DiVittorio 1974-4-30 28 Butte Ca. 3.5 mi ne of Cohasset on Cohasset Hwy, and ca. 100 yds w side of the road. 609 Comment
  CHSC58671  Marsilea vestita M. Bailey 1991-7-27 Butte Lake Concow Reservoir. 762 Comment
  SEINET10530352  Marsilea vestita Mary Susan Taylor 1980-6-29 Taylor 2989 Butte T23N R1E nw sec 20 Richardson Spring quad; ca. 1 mi E of Meridian Rd, ca. 4 mi N of Chico; Valley Grassland. 70 Comment
  SEINET10476234  Meconella californica Mary Susan Taylor 1975-3-10 Taylor 407 Butte Honey Run Covered Bridge, along Butte Creek, from bridge, on bluffs (S side) down to creek and along creek, returning to bridge; ca. 8 mi E of Chico. Riparian Woodland and Foothill Woodland. 152 Comment
  CHSC109592  Medicago arabica Lowell Ahart 2012-5-14 18056 Butte Just west of Table 12, south of Big Chico Creek, north of the paved road, Lower Bidwell Park, Chico. 74 Comment
  CHSC96248  Medicago arabica R. Fischer 2006-4-25 1001 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east -side addition along Hwy. 32. Plants growing at the southern end of reserve on the west facing hillside in small openings adjacent seasonal springs. 304 Comment
  CDA30219  Medicago lupulina L. P. Janeway 2008-5-19 9365 Butte Sacramento Valley; East side Chico; east side of Highway 99 between 8th and 9th Streets, in the western part of the CalTrans Park & Ride area. Comment
  JEPS87399  Medicago lupulina Lowell Ahart 1993-11-1 7274 Butte on s side of Butte City Hwy e Southern Pacific Railroad (w of Riceton Rd, about 3 1/4 mi nw of Biggs); Rice Experiment Station 30 Comment
  CHSC40606  Medicago polymorpha Ahart; Jokerst 1985-3-24 4858 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
  JEPS103293  Medicago polymorpha Lowell Ahart 2002-5-7 9622 A Butte High banks of a pond, at the beginning of a SE branch of Schirmer Ravine, ca 50 yards E of the pond on the E side of Cherokee Road, North Table Mountain, ca 4 miles (air) N of Oroville. 228 Comment
  UCD107828  Medicago polymorpha A. A. Heller 1914-3-7 11186 Butte 8 miles north of Oroville. Comment
  CHSC108775  Medicago praecox L. P. Janeway 2011-4-26 10240 Butte Sacramento Valley. Oroville; in gravel parking area at east side of Feather River Ranger District office (875 Mitchell Ave.). 59 Comment
  CHSC44500  Medicago praecox Lowell Ahart 1988-5-8 5983 Butte Near North Honcut Creek, Peter Ahart Ranch, about 1 1/4 miles north and 3 miles east of Honcut about 12 miles south-east of Oroville. 60 Comment
  CHSC11978  Melica aristata E. B. Copeland 1929-7-18 337 Butte Jonesville. 1550 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
  CHSC92648  Melica californica var. 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
  CDA13298  Melica harfordii G. F. Hrusa, T. D. Wilfred 1996-7-9 13146 Butte Plumas National Forest; Common colonies on dry, shaded slopes in coniferous understory above Jordan Creek S of Hwy 162 near Roger's Cow Camp. Perennial. Comment
  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
  RSA403523  Melica harfordii L. Ahart, P. Ahart 1984-6-10 4713 Butte About 2 miles SW of Forbestown Diversion Dam, NE of Forbestown. 700 Comment
  CHSC47045  Melica stricta R. A. Schlising; L. Janeway, B. Castro 1988-7-30 4641 Butte NE part of county, Snow Mountain ridge. 2072 Comment
  CDA13293  Melica subulata G. F. Hrusa, T. D. Wilfred 1996-7-9 13141 Butte Plumas National Forest; Occasional individuals on dry, shaded slopes in coniferous understory above Jordan Creek S of Hwy 162 near Roger's Cow Camp. Perennial. Comment
  POM196130  Melica subulata E. B. Copeland 1929-7-16 338 Butte Jonesville. 1550 Comment
  UCD88607  Melica subulata E. B. Copeland 1929-7-16 338 Butte Jonesville. 1500 Comment
  CHSC6148  Melica torreyana E. Parreno 1968-4-28 80 Butte W end of Covered Bridge, Chico. Comment
  CHSC86105  Melica torreyana L. P. Janeway; John Hunt 2003-4-22 7765 Butte Northern Sierra Nevada Foothills. Peninsula on west side of Lake Oroville at Goat Ranch Campground; 2.9 km west of Bloomer Hill. 287 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
  CDA4211  Melilotus officinalis L. Ahart 2001-6-13 8817 Butte On the sides of the dirt road east of the large pump, on the south side of Evans-Reimer Road, about 1 mile east of Pennington Road, Gray Lodge Waterfowl Management Area, about 4 miles (air) southwest of Gridley. Comment
  SEINET10902774  Melissa officinalis Mary Susan Taylor 1979-10-13 Taylor 2252 Butte T22N R4E sw 1/4 sec 21. Riparian Woodland along creek crossing Jordan Hill Road (Ponderosa Way on some maps), ca. 0.8 mi N of its jct with Concow Road, ca. 5 mi E of Paradise. With J.D. Jokerst. 427 Comment
  CHSC43838  Mentha pulegium B. Castro 1987-9-8 215 Butte E of the lodge at Richardson Springs resort. 182 Comment
  CHSC43296  Mentha spicata Lowell Ahart 1987-8-30 5868 Butte Along the north fork of the Feather River, near the Poe Power House, about 2 miles southeast of Jarbo Gap. 271 Comment
  JEPS118060  Mentha spicata var. spicata Lowell Ahart 2011-8-17 17624 Butte About 20 yards south of the trail, south of the crossing and on the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 203 Comment
  CHSC13692  Mentzelia dispersa Vernon Oswald; Lowell Ahart 1987-7-1 3045 Butte Cherry Hill Campground on Humboldt Rd. between Butte Meadows and Jonesville. 1438 Comment
  SD3167  Mentzelia dispersa E. B. Copeland 1929-7-19 385 Butte Jonesville. Found on two rocks-slides in full sunlight, along Butte Creek. Comment
  CHSC30798  Micranthes californica M. S. Taylor; J. D. Jokerst 1980-4-18 2517 Butte Along creek w side of Humbug Rd, ca. 1 mi s of Nimshew. 609 Comment
  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
  CHSC7051  Micranthes integrifolia J. G. Moore 1969-2-25 112 Butte In Upper Bidwell Park 200 yds. w of rifle range and 100 yds. n of golf course entrance. 67 Comment
  SJSU10057  Micropus californicus C. D. Duncan 1963-5-4 Butte Neal Rd between Chico & Paradise 487 Comment
  HSC32400  Micropus californicus var. californicus Gary S. Lester 1974-4-20 102 Butte Along Pentz Rd. 300 yds. S of intersection with Clark Rd. 76 Comment
  UC519235  Micropus californicus var. californicus C. G. Albertus 1933-6-6 1424 Butte 0.25 mi w Pentz 137 Comment
  CAS-BOT-BC348700  Microseris acuminata Lowell Ahart 1979-5-11 s.n. Butte Peter Ahart Ranch. Honcut 50 Comment
  CAS-BOT-BC348881  Microseris douglasii subsp. douglasii E. B. Copeland 1899-4-22 s.n. Butte Chico Comment
  SEINET10830506  Mimulus angustatus Mary Susan Taylor 1986-5-6 Taylor 5620 Butte Butte County; Cohasset Ridge, in open flat areas in mixture of Foothill Woodland and Chaparral, ca. 10 mi NNW of Chico. With Vern Oswald & Lowell Ahart. 1400 ft. 427 Comment
  UC1012167  Mimulus aurantiacus var. grandiflorus F. W. Pennell and A. A. Heller 1940-6-5 25677 Butte 10-12 mi above Oroville (Route 24); Feather River 182 Comment
  UC103641  Mimulus aurantiacus var. grandiflorus Mrs. R. M. Austin 235 Butte Comment
  JEPS108837  Mimulus geniculatus Lowell Ahart 2006-5-3 12563 Butte Face of basalt cliffs on the south side of the stream, about 100 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
  UC75182  Mimulus glaucescens Dr. E. B. Copeland 1903-5-15 3177 Butte Chico Comment
  OBI9444  Mimulus glaucescens Robert F. Hoover 1968-5-29 11137 Butte Cohasset Rd Comment
  RSA715566  Mimulus guttatus L. Ahart 2005-5-2 11781 Butte East side of the Sacramento River, northwest of Parrott landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 26 Comment
  POM43694  Mimulus guttatus C. C. Bruce 1897-05 2104 Butte Iron Canyon Comment
  SEINET8340795  Mimulus guttatus A. A. Heller 1915-5-4 11868 Butte 8 miles north of Oroville. Comment
  UC454131  Mimulus moniliformis Miss Kate Conger 1907-1 Butte Brush Creek Comment
  CHSC102403  Mimulus moschatus Lowell Ahart 2009-6-30 15978 Butte About 55 yards southeast of the gate, about 45 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 269 Comment
  CHSC4966  Mimulus moschatus R. Carter 1967-7-14 608 Butte Growing along roadside. Comment
  CHSC113499  Mimulus torreyi Lowell Ahart 2014-7-13 19660 Butte East part of a large wet meadow (some bog), about 150 yards southeast of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC10733  Minuartia californica Lowell Ahart 1967-4-11 Butte Peter Ahart Ranch, Honcut. 42 Comment
  HSC93374  Minuartia californica L. Ahart 1995-5-30 7588 Butte N Table Mtn., about 7 mi. N of Oroville, about 2 mi. NW of Cherokee Rd., 1/10 mi. SE of the reservoir. 305 Comment
  POM285522  Minuartia californica Lyman Benson 1935-3-27 6359 Butte 10 mi. W. of Oroville. Watershed: Sacramento River. 91 Comment
  UC135739  Minuartia californica Mrs. R. M. Austin Mar, 1896 79 Butte plains e Chico Comment
  CHSC103951  Minuartia cismontana Lowell Ahart 2010-5-23 16734 Butte On the west side of Pine trail, about 40 yards west of Highway 32, about 9 miles (air) northeast of Chico. 478 Comment
  CHSC35045  Minuartia douglasii R. A. Schlising 1980-6-12 3690 Butte 0.25 mi S of Tehama County line, along Hwy 32 near Lomo. 1121 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
  CHSC31521  Mollugo verticillata L. Ahart 1972-5-8 98 Butte Peter Ahart Ranch, Honcut. 45 Comment
  JEPS103455  Mollugo verticillata Lowell Ahart 2002-10-17 9983 Butte On 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
  UC204576  Mollugo verticillata A. A. Heller 1914-6-2 11473 Butte land 8 mi n of Oroville Comment
  CAS-BOT-BC435066  Mollugo verticillata John Thomas Howell 1959-9-20 34635 Butte Eastern outskirts of Oroville 60 Comment
  RSA32319  Mollugo verticillata Willis H. Wheeler 1945-10-11 s.n. Butte US Plant Introduction Garden. Chico. Comment
  SEINET6646079 Image available Mollugo verticillata Lowell Ahart 1984-1 4787 Butte West of Pacific Heights Raod, about 5 miles South-west of Oroville 40 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
  CHSC43016  Monardella odoratissima L. P. Janeway 1987-7-4 2422 Butte Last Chance Cr. Along rd to Jones Mdw 6.5 mi from Inskip. 1524 Comment
  CAS-BOT-BC222752  Monardella odoratissima Lowell Ahart 1980-7-4 2453 Butte Near Hurleton 600 Comment
  RSA718088  Monardella odoratissima subsp. glauca L. Ahart 2006-7-16 12960 Butte north side of Humboldt Road, about 1 1/2 miles (air) southwest of Butte Meadows 1436 Comment
  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
  CHSC43017  Monardella sheltonii L. P. Janeway 1987-6-8 2178 A Butte 5.7 mi south of Big Bar Mtn (via rd). 792 Comment
  CHSC43830  Monardella sheltonii L. P. Janeway 1987-5-20 2062 Butte SW-facing rocky cutbank above Dark Cyn Rd 1.4 mi south of hwy 70. 510 Comment
  CHSC67984  Monardella sheltonii James D. Jokerst 1992-5-19 3357 Butte Cascade Range Foothills. Stone Ridge Ranch Devolopment Site E of Cohasset Rd. at Chico Municipal. North-facing cliff S of intermittent drainage in Sheep Hollow. 76 Comment
  CHSC768  Monardella sheltonii R. M. Staley 1952-7-1 Butte Honey Run. 243 Comment
  RSA754450  Monardella sheltonii L. Ahart 2009-6-3 15822 Butte W side of Ten Mile House Road, about 100-200 yards NW of the table at the old homestead, Upper Bidwell Park, about 3/4 air miles SW of the intersection of Hwy 32 and Ten Mile House Road, about 10 miles NE of Chico. 232 Comment
  JEPS62419  Monardella villosa subsp. villosa W. I. Follett 1937-6-25 95 Butte 4.7 mi north Bidwell Bar (on the old Oroville-Quincy highway) 335 Comment
  SJSU765  Monardella villosa subsp. villosa A. W. Jacobs 1942-6-26 Butte 22 mi NE of Oroville on Hwy 24 Comment
  UC1093944  Monardella villosa subsp. villosa Lewis S. Rose 1955-6-15 55105 Butte 6 mi SE of Paradise on Pentz Road 426 Comment
  CHSC45392  Montia chamissoi Vernon Oswald 1983-8-4 957 Butte Near Humboldt Rd. 3.5 mi n-e of Butte Meadows. Growing in a sandy, wet spot along Butte Creek. 1414 Comment
  HSC32652  Montia fontana David Johnson 1974-4-20 57 Butte Table Mtn. Comment
  CHSC46731  Montia fontana subsp. amporitana Lowell Ahart 1973-3-7 164 Butte Peter Ahart Ranch, about 1 1/4 miles north and 1 1/4 miles east of Honcut, about 12 miles south of Oroville. 42 Comment
  SEINET10572721  Montia fontana subsp. chondrosperma Lowell Ahart 1985-5-10 Ahart 4952 Butte East branch of Potter Ravine, about 2 1/4 miles north of Oroville Dam. Comment
  SEINET10572711  Montia minor Mary Susan Taylor 1979-3-31 Taylor 1965 Butte On property belonging to Deanne Lickey; along Ishi Trail Road, ca. 0.5 mi NE of Concow Road and Lake Concow, ca. 25 mi N of Oroville; Yellow Pine Forest; granite soils. 671 Comment
  CHSC38633  Montia parvifolia Vernon Oswald 1983-4-24 360 Butte Upper Bidwell Park, Chico, near the north edge of Chico Creek 50 ft w of Parking Area H at Day Camp. 91 Comment
  CHSC88641  Montia parvifolia Linnea Hanson 1996-5-15 363 Butte Plumas National Forest. Brush Creek Fire Station. 1066 Comment
  CHSC108765  Morus alba L. P. Janeway 2011-5-9 10252 Butte Sacramento Valley. South side Feather River just east of Bedrock Park, Oroville; about 10-15 m back from the edge of the water. 42 Comment
  CAS-BOT-BC264287  Muhlenbergia andina Lowell Ahart 1988-7-31 6147 Butte On the east side of the West Branch of the Feather River, north of the bridge, about 4 road miles north of Stirling City 914 Comment
  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
  CHSC34187  Muhlenbergia filiformis L. Ahart 1981-9-15 3168 Butte In the swamp, where the road forks and crosses French Creek, ca. 1 mi w of Sly Creek Reservoir. 1300 Comment
  RSA129344  Muhlenbergia filiformis H. S. Yates 1936-8-13 6100 Butte Butte Meadow. 1341 Comment
  SEINET10508181  Muhlenbergia filiformis Lowell Ahart 1983-8-16 Ahart 4305 Butte T26N R4E section 32. Near Bull Hill Road, ca. 3 miles south of Butte Meadows. Yellow Pine Forest; 1450 m. 1450 Comment
  CHSC49561  Muhlenbergia minutissima Vernon Oswald 1987-8-10 3198 Butte Lily Pond' located ca. 0.6 mi (air) w of Butte Creek House and 0.25 mi s of Humbug Rd., ca. 2.75 mi e of Jonesville. 1813 Comment
  CHSC59050  Muhlenbergia minutissima Lowell Ahart 1992-7-21 6799 Butte On the sides of a lake, on the south side of Coon Hollow, about 2 (air) miles north-east of Philbrook Reservoir. 1737 Comment
  CDA32551  Muhlenbergia rigens Vaughn & Son, Oroville & Ag. Com. Office Jan 1961 Butte 0 Comment
  CHSC46875  Myriophyllum spicatum Vernon Oswald 1989-9-6 3986 Butte West end of West Liberty Rd along the n boundary of Gray Lodge Wildlife Area. 19 Comment
  JEPS88529  Najas gracillima Vernon H. Oswald and Lowell Ahart 1996-6-22 8093 Butte U.S. Fish and Wildlife Service parcel between Seven Mile Lane and Sacramento River. 32 Comment
  CHSC45317  Najas guadalupensis Vernon Oswald 1988-10-25 3715 Butte Wurlitzer Unit, Vina Plains Preserve. 57 Comment
  UCD19361  Najas guadalupensis subsp. guadalupensis E. Dean; with J. Ditomaso and E. Healy 2001-8-20 852 Butte Biggs UC Field Station. North of town of Biggs, W of jct of Hwys 99 and 162. North side of Hamilton Road, ca. 1/8 mile E of jct with Riceton Hwy. Along second north-south running dirt road leading N into rice fields, at intersection with first east-west running dirt road, corner of rice field. 30 Comment
  UC21150  Nama lobbii P. L. Johannsen 1936-7-21 952 Butte 1/2 mi e Chaparral House; Paynes Creek Quad., Lassen National Forest Comment
  CHSC6156  Nassella pulchra E. Parreno 1968-4-19 66 Butte Roadside of Cherokee Rd. e of Cherokee cemetery. Comment
  UCD87539  Nassella pulchra A. A. Heller 1915-4-3 11804 Butte Base of South Butte, Marysville. 0 Comment
  CHSC100805  Navarretia capillaris R. A. Schlising; L. Janeway 1988-7-16 4604 Butte N part of county, S of Humbug Summit at upper reaches of Willow Creek; edge of meadow. 1950 Comment
  CHSC30074  Navarretia capillaris R. A. Schlising; R. Banchero 1980-7-14 3902 Butte North end of Snag Lake above Inskip. 1731 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
  CHSC93987  Navarretia divaricata subsp. divaricata R. D. Fischer 2004-6-20 780 Butte Sierra Nevada Mountains, north-east corner of Butte County and ca. 2 miles west of Butte Meadows on Humboldt Road. Plants collected roadside off eroded, gravelly volcanic soil. 1417 Comment
  JEPS117331  Navarretia divaricata subsp. divaricata Lowell Ahart 2010-9-28 17249 Butte On the west side of Big Kimshew Creek, about 100 yards east of the poor dirt road, about 1-1/2 miles (air) northeast of Jones Meadow, about 2-1/2 miles (air) southeast of Philbrook Reservoir 1886 Comment
  CHSC69660  Navarretia filicaulis Vernon Oswald; Lowell Ahart 1997-9-9 8860 Butte Northeast of Forest Ranch on Doemill Rd. 1.3 mi west of Butte Creek Bridge, 0.6 mi east of Garland Rd. Roadside. 792 Comment
  UC423491  Navarretia filicaulis David D. Keck 1930-7-25 976 Butte 10 mi e Oroville; Sierra Nevada, Hurleton 487 Comment
  CHSC116740  Navarretia heterandra Lowell Ahart 2016-5-24 20846 Butte 50 yards north of the ditch, about 200 yards west of Loma Rica Road, about 250 yards southwest of the intersection of Loma Rica Road and La Porte Road, about 3 1/2 miles (air) northeast of Honcut 50 Comment
  CHSC43942  Navarretia heterandra Vernon Oswald 1988-5-18 3316 Butte East side of Bruce Rd. ca. 0.8 mi n of the Skyway in southeast Chico. 79 Comment
  JEPS107883  Navarretia heterandra Lowell Ahart 2005-5-27 11812 Butte Pasture field, about 50 yards northwest of the tower, Peter Ahart Ranch, about 2 1/4 miles north and 1 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville 42 Comment
  UC1719865  Navarretia heterandra David Fruchter 1979-9-18 177 Butte Oroville Airport Comment
  SEINET7072733  Navarretia intertexta subsp. intertexta A. G. Vestal 1963-5-9 s.n. Butte About 11 miles southeast of Chico on Route 99. UTM Zone 10, 612125mE, 4386570mN. Coordinate datum: NAD 27.) Comment
  CHSC25158  Navarretia leptalea D. Joley 1968-7-8 Butte 3/4 mi e of Lomo on Butte Meadows Road ca. 35 mi ne of Chico. Comment
  CHSC31164  Navarretia leptalea M. S. Taylor 1978-7-19 1762 Butte On e side of Upper Scotts John Rd, ca. 3 mi n of its jct with Scotts John Rd, ca. 7 mi ne of Jonesville. 1889 Comment
  CHSC23857  Navarretia leucocephala Glenda Foster 1975-5-10 99 Butte In vernal pool at the roadside at the intersection of Highway 99 and Broyles Road. Comment
  UCSB63717  Navarretia leucocephala Romano, Marci 1986-4-15 Butte junction of Broyles Rd and Hwy 99 11 m N of Chico 68 Comment
  CHSC84253  Navarretia leucocephala subsp. leucocephala Lowell Ahart 2003-5-28 10232 Butte Bottom of Hendricks ditch, about 1 3/4 miles west of the iron gate and fence, west of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 271 Comment
  POM74522  Navarretia leucocephala subsp. leucocephala Edward Palmer 1892-6-7 2081 Butte Near Chico. Comment
  CAS-BOT-BC230473  Navarretia nigelliformis var. nigelliformis A. A. Heller 1914-5-14 11402 Butte 8 miles N of Oroville, near Dry creek SW of Pentz Comment
  CDA31934  Navarretia pubescens L. Ahart 2009-5-23 15727 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 Comment
  JEPS107888  Navarretia pubescens Lowell Ahart 2005-5-28 11819 Butte Pasture, on the south side of Nelson Avenue, east of the bridge across the Thermalito Forebay, Thermalito 67 Comment
  UC1008720  Navarretia pubescens Lewis S. Rose 1945-5-12 45012 Butte Richardson Springs 304 Comment
  SEINET10496835  Navarretia pubescens Mary Susan Taylor 1980-5-31 Taylor 2758 Butte T22N R4E sw sec 31. Kunkle Reservoir, on E side of Pentz-Magalia Hwy, ca. 2 mi SE of Paradise. With R.A. Schlising and L. Ahart. 442 Comment
  UC518029  Navarretia tagetina Lewis S. Rose 1933-5-27 33187 Butte Honcut 32 Comment
  SEINET10461183  Nemacladus interior Howell 1959-9-26 Howell 35086 Butte Cuesta Power House; North fork of the Feather River 427 Comment
  UC606887  Nemophila heterophylla L. Constance, J. L. Morrison 1938-4-30 2177 Butte 8 mi n Chico (between Big Chico Creek and Little Chico Creek); Sierra Nevada foothills, btw Big Chico Creek and Little Chic 609 Comment
  UCD120075  Nemophila menziesii G. D. Ames 1962-4-8 89 Butte On Table Mountain, north of Oroville. Comment
  CHSC90484  Nemophila menziesii subsp. menziesii Lowell Ahart; Paul Maslin, John Dittes 2005-3-17 11677 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
  CHSC38462  Nemophila pedunculata Vernon Oswald 1983-4-25 385 Butte Upper Bidwell Park, Chico, on the north rim ca 500 ft e of the power lines. 249 Comment
  JEPS119738  Nemophila pedunculata Lowell Ahart 2012-3-23 17789 Butte About 200 yards east of Big Chico Creek, about 200 yards west of Ten Mile House Road, below and north of the old homestead, about 3/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  RSA769605  Nemophila pedunculata L. Ahart, John Dittes 2009-3-20 15499 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
  CHSC11970  Nemophila spatulata E. B. Copeland 1930-6-28 445 Butte Jonesville. 1650 Comment
  CHSC95152  Nemophila spatulata R. D. Fischer 2005-6-5 828 Butte Chico Meadows. Northern Sierra Nevada, n. of Forest Ranch, 5 miles w. of Hwy 32 off Humboldt Road to Butte Meadows and c. 3 miles n. to Chico Meadow (Camp Lassen, BSC) on Scout Road. Along eastern edge of Chico Meadow. 1280 Comment
  SEINET10497062  Nemophila spatulata Mary Susan Taylor 1982-6-24 Taylor 4741 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
  CHSC20966  Nerium oleander M. S. Taylor 1975-9-8 904 Butte Back yard of President's House, California State University, Chico, campus. Comment
  SEINET10964650  Nicotiana acuminata var. multiflora Lowell Ahart, Peter Ahart 1983-8-10 Ahart 4270 Butte T18N R5E sec 14? Along La Porte Rd, ca. 4 mi ne of Bangor. Foothill Woodland; 350 m. 350 Comment
  CDA41165  Nicotiana quadrivalvis L. Ahart, Vernon H. Oswald 1999-8-13 8136 Butte Along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. Comment
  CHSC95359  Nyssa sylvatica L. P. Janeway; Morgan LoRomer 2006-9-29 8890 Butte Rancho Arroyo Chico. Sacramento Valley. On the campus of California State University Chico; two trees at the southwestern corner of Shasta Hall, about 37 m southeast of Legion Ave. half way between Citrus Ave. and Warner St. 59 Comment
  CHSC31849  Odontostomum hartwegii L. Ahart 1977-4-16 1306 Butte Peter Ahart Ranch, Honcut. 50 Comment
  SEINET8501843  Odontostomum hartwegii C. Witham, J. Buck 2001-5-3 182 Butte Book Family Farm, off of Hwy 99, 2 miles N of its intersection with Hwy 149, Book Ranch Site, pool # BOO072. Comment
  SEINET10472783  Odontostomum hartwegii Mary Susan Taylor 1980-4-27 Taylor 2568 Butte T22N R2E sc sec 25. On N side of Humbug Rd, ca. 0.5 mi upstream from Honey Run Covered Bridge, ca. 7 mi E of Chico; Foothill Woodland. With J.D. Jokerst. 122 Comment
  SEINET12265274  Odontostomum hartwegii L. S. Rose 1931-1 s.n. Butte Oroville Comment
  SEINET10500394  Orobanche fasciculata var. franciscana Mary Susan Taylor 1976-4-27 Taylor 1086 Butte Abundant ca. 50 ft E of Cohasset Hwy, ca. 8 mi N of Chico; in Chaparral, with Cerococarpus betuloides, Adenostoma fasiculatum, Lepechnia calycina. 137 Comment
  CAS-BOT-BC500246  Orobanche uniflora subsp. occidentalis Lowell Ahart 1979-4-3 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  SEINET12326960  Orthocarpus attenuatus Unknown 1978-1 19 Butte ca 2.5 mi NE of jct Lassen Ave & Cohasset Rd, near Chico, 500 ft N of roadway 152 Comment
  RSA715718  Orthocarpus erianthus L. P. Janeway 2005-3-1 8332 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Rd. 1.8 km northeast of Bruce Road. 134 Comment
  RSA402000A  Orthocarpus erianthus J. P. Smith 1973-3-22 5911 Butte Along State Route 149, just north of junction with US 70. Comment
  POM193335  Orthocarpus hispidus E. B. Copeland 1930-6-28 470 -A Butte Jonesville. In 'Scotch John' meadow. 1700 Comment
  RSA727539  Orthocarpus lacerus Ken Osborne 2007-5-13 s.n. Butte Sierra Nevada Foothills: along Ponderosa Way at Mud Creek, c. 1.5 mi. SE of Cohasset. 701 Comment
  SEINET6330764 Image available Oryza sativa Albert Fischer 2003-9-17 s.n. Butte Biggs Experimental Station Comment
  SEINET10968176  Oryzopsis miliacea Lowell Ahart 1985-5-10 Ahart 4965 Butte 1/2 mile south of Box Hall Flat, about 1 mile east of Potter Ravine, about 2 and 3/4 miles north-east of Oroville Dam. Comment
  UCD138168  Ottelia alismoides Donald E. Seaman 1977-9-10 s.n. Butte on Lattimore portion of Biggs Rice Station. Comment
  SEINET10454532  Oxypolis occidentalis Mary Susan Taylor 1977-7-15 Taylor 1407 Butte Butte Meadows, ca. 20 mi NE of Chico off Hwy 32. 1326 Comment
  CAS-BOT-BC316895  Packera eurycephala var. lewisrosei John Thomas Howell 1962-6-16 37555 Butte Magalia 731 Comment
  CHSC42458  Packera eurycephala var. lewisrosei Lowell Ahart 1987-5-9 5588 Butte Along Pulga Road, about 1/4 mile west of Bardees Bar along the North Fork of the Feather River, about 2 1/2 miles south-west of Pulga. 365 Comment
  CHSC63382  Packera subnuda var. subnuda V. H. Oswald; L. P. Janeway, L. Hanson 1994-6-22 6349 Butte Meadow on the W side of Willow Creek near the Tehama County boundary, ca. 1 mi NW of Jonesville. 1539 Comment
  UC600480  Paeonia brownii H. F. Copeland 1920-5-22 205 Butte Jonesville Comment
  CHSC109788  Panicum capillare Lowell Ahart 2012-10-20 18515 Butte South of Table 34, west of Cedar Grove, Lower Bidwell Park, Chico. 68 Comment
  CHSC47624  Panicum capillare Lowell Ahart 1982-10-15 3890 Butte On bottom of North Honcut Creek, about 1 mile north and 2 1/2 miles east of Honcut. 42 Comment
  CHSC116140  Panicum dichotomiflorum subsp. dichotomiflorum Lowell Ahart 2015-10-26 20606 Butte Strand of Lake Oroville, on west side of West Branch of Feather River,about 1 mile (air) southeast of Kunckle Reservoir, about 5 miles (air) southest of Paradise. 207 Comment
  JEPS127017  Parentucellia viscosa Lowell Ahart 2016-5-24 20873 Butte About 150 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. Comment
  SEINET7040266  Parvisedum pentandrum A. G. Vestal 1963-5-9 s.n. Butte Ca 14.2 miles southeast of Chico. Nelson Quadrangle UTM Zone 10, 598465mE, 4375546mM. Comment
  JEPS104347  Parvisedum pumilum Lowell Ahart 2003-4-10 10082 Butte Near the easat side of the ''sunken area,'' ca 150 yd w of the e rim of South Table Mountain, ca 2 1/2 mi (air) n of Oroville. 320 Comment
  RSA769674  Parvisedum pumilum L. Ahart 2009-4-22 15603 Butte W side of Guardians Trail, about 100 yards N of Pine Trail, Upper Bidwell Park, W of the intersection of Highway 32 and Ten Mile House Road, about 10 miles NE of Chico. 382 Comment
  CHSC110343  Paspalum distichum B. Castro 2006-8-10 1597 Butte Sacramento Valley. Ca 1 mi W of Hwy 99 and 3 mi NE of Richvale, just S of the Western Canal siphon in Cherokee Canal. On W side of canal about 30 ft N of dirt road crossing the canal. 35 Comment
  SEINET10836216  Paspalum urvillei Lowell Ahart, Peter Ahart 1983-6-12 Ahart 4049 Butte T20N R5E n half sec 36. Ca. 1 mi s of Crystal Hill, n of Oregon Gulch, near Lake Oroville, ca. 7 mi sw of Feather Falls. Yellow Pine Forest. Comment
  CHSC34221  Paxistima myrsinites M. S. Taylor 1981-5-29 3811 Butte Vicinity of old mining claim ca bin, Chino Ridge, at end of spur rd 22N85, off 22N31, at Chino Creek, ca. 3 air mi sw of Coyote Gap, ca. 16 air mi n of Oroville. 975 Comment
  CHSC37125  Paxistima myrsinites L. Ahart 1982-9-13 3827 Butte Along edge of dirt rd by Pinkard Creek, ca. 1/8 mi n of Lost Creek Reservoir Dam, ca. 2.2 mi nw of Strawberry Valley. 1100 Comment
  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
  CHSC47995  Pectocarya pusilla Vernon Oswald 1987-4-14 2322 Butte Hwy 32 between Chico and Forest Ranch at the 17.0 mile marker. 390 Comment
  JEPS119983  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. Comment
  CHSC24781  Pedicularis densiflora D. E. Hale 1976-4-10 14 Butte On e side of Vilas Rd - Ponderosa Rd intersection, ca. 1.2 km e from Vilas Rd - Cohasset Hwy intersection. 830 Comment
  CHSC90095  Pedicularis densiflora Rebecca L. Hill 1990-4-21 18 Butte Ca. 2 mi e on Humboldt Rd., ca. 50 yds on s side of road. Ca. 2.5 mi sw of Butte Meadows and ca. 27 mi ne of Chico. 1310 Comment
  POM297982  Pedicularis densiflora A. A. Heller 1919-3-29 13097 Butte Cherokee mine. Comment
  CAS-BOT-BC69333  Pellaea brachyptera E. B. Copeland 1930-7-7 401 Butte Jonesville 1700 Comment
  RSA4626  Pellaea brachyptera E. B. Copeland 1930-7-7 401 Butte Jonesville. 1700 Comment
  CHSC28987  Pellaea mucronata M. S. Taylor 1980-3-19 2391 Butte Macabes Creek Canyon, ca. 100 ft e of Lumpkin Rd, ca. 2 1/2 mi n of its jct with Forbestown Rd, ca. 18 mi ne of Oroville. 396 Comment
  CHSC32734  Pellaea mucronata M. S. Taylor 1981-4-8 3482 Butte E side of Dark Canyon Rd, 2.2 mi s of its jct with Big Bend Rds jct, ca. 3 air mi s of Jarbo Gap on Hwy 70. 426 Comment
  SEINET10834167  Pellaea mucronata Mary Susan Taylor 1981-1-5 Taylor 3369 Butte T21N R4E sw sec 6. Cherokee quad. Ca. 100 ft e of Pentz-Magalia Hwy, ca. 1 mi s of Kunkle Reservoir, ca. 3 mi s of Paradise. Foothill Woodland and Savannah; 1350 ft. 411 Comment
  JEPS87422  Pellaea mucronata var. mucronata Lowell Ahart 1993-7-6 7063 Butte ca. 9 air mile nw of Lost Creek Reservoir Dam (Mooreville Ridge, Jackass Flat); Jackass Flat, Mooreville Ridge 1158 Comment
  HSC23313  Pellaea mucronata var. mucronata D. C. Polen 1971-4-8 20 Butte 40 mi. N on Skyway, 7.4 mi. E of Skyway's jct. with 99E, Chico 274 Comment
  RSA305807  Penstemon azureus James R. Shevock 1972-5-19 1776 Butte Jacob Pass, Feather River Canyon, Hwy 70. 1067 Comment
  SEINET12320806  Penstemon azureus M. S. Taylor 1980-1 2776 Butte just E of Coutelence Rd at its jct with Skyway 610 Comment
  UC1302274  Penstemon azureus var. angustissimus Richard M. Straw 1962-6-26 2193 Butte 5 mi n Bidwell Bar; n of Bidwell Bar 580 Comment
  SEINET3160230  Penstemon breviflorus L. S. Rose 1940-5-30 40425 Butte Feather River Canyon, 25 mi NE of Oroville 610 Comment
  UC478467  Penstemon deustus var. deustus E. B. Copeland 1930-7-7 Butte Jonesville Comment
  CHSC37271  Penstemon deustus var. suffrutescens L. Ahart 1982-6-15 3583 Butte Ca. 1.5 mi e of Camp 18, ca. 18 mi e of Feather Falls. 1000 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
  CHSC43075  Penstemon laetus var. leptosepalus R. A. Schlising; J. D. Jokerst 1980-7-2 3818 Butte Nimshew Road, 1.0 mi S of Nimshew Cementary. 731 Comment
  UC478468  Penstemon rydbergii var. oreocharis E. B. Copeland 1931-6-20 689 Butte Jonesville , Jonesville (by Butte Creek) 1500 Comment
  CAS-BOT-BC77139  Pentagramma triangularis subsp. semipallida Jeffrey D. Mott 1978-4-24 8 Butte West Branch Feather River - Cherokee Quadrangle 280 Comment
  JEPS108137  Pentagramma triangularis subsp. semipallida Lowell Ahart 2005-11-12 12482 Butte Steep road cut on the east side of Dark Canyon Road, south of the large parking area, south of the gate, end of Dark Canyon Road, about 3 miles (air) south of Highway 70 at Big Bend Road 293 Comment
  CHSC86076  Pentagramma triangularis subsp. triangularis R. D. Fischer; Paul Maslin 2003-12-24 18 Butte Sierra Nevada Range, off Hwy 32 between Chico and Forest Ranch. Located about 150 yds. west of a wide pull out which, in turn, is about 200 yds. south of the gated main entrance to Big Chico Creek Ecological Reserve (BCCER). 548 Comment
  CAS-BOT-BC77088  Pentagramma triangularis subsp. triangularis Brad R. Parker 1976-4-28 2 Butte Ca. 2 mi. NE of Oroville, ca. 250 yd off the NW side of Glen Circle Dr. at the opposite edge of the open field. 115 Comment
  CHSC108175  Perideridia bacigalupii L. P. Janeway 2011-8-17 10659 Butte Northern High Sierra Nevada. Plumas National Forest; top of Bloomer Hill. In areas where mixed conifer forest has been greatly thinned and the resulting understory shrubs have been cleared several years ago. 912 Comment
  UC1390029  Perideridia bolanderi subsp. involucrata T. I. Chuang and L. Constance 1967-6-21 6057 Butte on Hwy 70 5.7 mi se Pentz SStore Comment
  CDA14087  Perideridia lemmonii G. F. Hrusa, T. D. Wilfred 1997-7-3 13971 Butte Sierra Nevada; NE side of upper end of Paradise Lake. Where last tributaries from E enter. Comment
  JEPS107522  Perideridia lemmonii Lowell Ahart 2005-7-12 12143 Butte About 40 yards south of Encina Grade Road (Bloomer Hill Road) (Forest Road 21N39), about 40 yards east of Forest Road 21N40, about 3/4 mile (air) west of Bloomer Hill, about 6 miles west of Oroville Quincy Highway 822 Comment
  SEINET12121858  Perideridia oregana Unknown 1985-1 5061 Butte Lumpkin Ridge, 1.5 mi E of Camp 18, about 8 mi NE of Feather Falls, 100 yards S of dirt road 975 Comment
  CHSC31065  Perideridia parishii subsp. latifolia M. S. Taylor 1978-7-19 1788 Butte On n end of Snag Lake between creek and Humbug Rd, ca. 3 mi s of jct of Humbug Rd and Scotts John Rd. 1920 Comment
  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
  CHSC42757  Persicaria amphibia Lowell Ahart 1987-8-3 5852 Butte On dry red soil in an idle rice field, east of the Western Pacific Railroad, south of Central House Road, about 1 1/2 miles north and 1 mile west of Honcut. 30 Comment
  CHSC34192  Persicaria hydropiper L. Ahart 1981-9-19 3177 Butte Along edge of the road just a few feet n of the Arch Rock Tunnel, on Hwy 70, ca. 10 mi s of Storrie. 550 Comment
  CHSC83088  Persicaria lapathifolia Lowell Ahart 2002-10-17 9992 Butte On the gentle hills below the high water line of Lake Oroville, about 1 1/2 miles south of Highway 162 (Oroville Quincy Highway), about 3 miles (air) northeast of Oroville Dam. 227 Comment
  JEPS124337  Persicaria maculosa Lowell Ahart 2015-10-16 20556 Butte About half way of and east of One Mile Pond, about 6 miles (air) east of Biggs. Comment
  CDA42947  Persicaria punctata L. Ahart 2012-10-28 18523 Butte On the south side of Big Chico Creek, about 50 yards east of Table 5, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CHSC108124  Persicaria punctata Lowell Ahart 2011-10-29 17724 -A 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
  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
  SEINET5726582 Image available Petrorhagia dubia Gary L. Carlin 1971-1 28 Butte Honey Run Road crossing of Butte Creek, 3.7 miles east of Chico.; Chico 122 Comment
  UC175561  Phacelia cicutaria var. cicutaria A. A. Heller 1913-4-5 10709 Butte above Oroville (hills on n side of river); Feather River Comment
  CHSC50108  Phacelia corymbosa Vernon Oswald 1990-4-24 4172 Butte Lime Saddle Recreation Area on the West Branch of Lake Oroville, ca. 0.2 mi northeast of Nelson Bar Launch, ca. 0.2 mi east of Lime Saddle Powerhouse. 277 Comment
  CHSC71118  Phacelia egena Jan Monelo 1989-4-11 9 Butte Ca 75 yds w of Covered Bridge on w side of Honey Run Rd, ca 7 mi e of Chico. 121 Comment
  CHSC42353  Phacelia heterophylla subsp. virgata Lowell Ahart 1987-5-9 5593 Butte On dry disturbed soil along Pulga Road, about 1/2 mile south-west of Bardees Bar along the North Fork of the Feather River, about 3 miles south-west of Pulga. 365 Comment
  UC600780  Phacelia mutabilis H. F. Copeland 1920-7-12 477 Butte Jonesville Comment
  SD6827  Phacelia purpusii R. M. Austin 1883-1 Butte Comment
  RSA0008811  Phaeostoma mildrediae A. A. Heller 1938-7-2 15153 Butte West of Arch Rock Tunnel on Feather River Hwy a mile or two west of Arch Rock Tunnel. Comment
  CHSC42519  Phalaris minor Lowell Ahart 1987-5-10 5609 Butte In a rice field, 1/8 mile south of Central House Road, east of the Western Pacific Railroad, about 1 1/2 miles north and 1 mile west of Honcut, about 12 miles south of Oroville. 30 Comment
  CHSC38841  Phalaris paradoxa Vernon Oswald 1983-5-31 591 Butte Upper Bidwell Park, Chico, on the n side of Upper Park Rd. opposite the Parking Area G (0.1 mi w of the power lines). 97 Comment
  CHSC75339  Phalaris paradoxa Lowell Ahart 1999-5-21 8068 Butte In a pasture, 50 yards north of Evans Reimer Road, about 7/8 mile east of Pennington Road, about 5 miles (air) southwest of Gridley. 21 Comment
  UCD89391  Phalaris paradoxa A. A. Heller 1914-5-13 11391 Butte Near Nelson. Comment
  UCD89392  Phalaris paradoxa A. A. Heller 1919-8-13 13352 Butte Between Nelson and Richvale. Comment
  CAS-BOT-BC77373  Philadelphus lewisii A. A. Heller 1915-5-17 11875 Butte Canyon of Chico Creek 5 miles east of Chico; about 50 miles to the south, probably along the Bear River Comment
  CAS-BOT-BC250867  Phleum pratense Lowell Ahart 1985-7-24 5156 Butte Below the high water line of the Forbestown Res., about 50 yards south of the Generator, about 4 1/2 miles north-east of Forbestown 1150 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
  RSA104878  Phlox diffusa subsp. diffusa Elizabeth Sprague 1956-6-1 s.n. Butte 2 miles west of Butte Meadows Comment
  UC880606  Phlox speciosa Helen M. Edwards Jun 1917 Butte De Sabla Comment
  RSA325180  Phoradendron bolleanum subsp. densum M. S. Taylor, Vernon H. Oswald 1984-4-4 5396 Butte At jct of Coutelenc Road and the Skyway, Magalia, just N of Paradise. 372 Comment
  UC1194603  Phoradendron densum Del Wiens 1960-6-15 2727 Butte near Magalia (just n. of train depot) Comment
  CAS-BOT-BC135097  Phoradendron juniperinum Flower Shaw 1928-4-1 s.n. Butte Cherokee School Comment
  CAS-BOT-BC135098  Phoradendron juniperinum E. B. Copeland 1931-7-28 627 Butte Jonesville 1500 Comment
  LA209889  Phoradendron leucarpum subsp. tomentosum A. A. Heller; 1914-1-28 11157 Butte near Hog Springs, 6 mi E of Chico Comment
  SEINET12276347  Phyla nodiflora Unknown 1905-1 s.n. Butte near Chico Comment
  CHSC31859  Physalis lancifolia L. Ahart 1972-6-21 125 Butte Peter Ahart Ranch, Honcut. 45 Comment
  RSA726339  Physalis lancifolia L. Ahart 2007-8-19 14494 Butte North strand of a reservoir, about 2.25 miles (air) southeast of Honcut, about 13 miles (air) southeast of Oroville. 49 Comment
  UCD41361  Physalis lancifolia E. Dean; with J. Ditomaso and E. Healy 2001-8-20 864 Butte Biggs UC Field Station. North of town of Biggs, W of jct of Hwys 99 and 162. Just S of main research buildings at field station, W of RR tracks and ca. 2 east-west running dirt roads S of buildings. Along east-west running dirt road. 30 Comment
  CAS-BOT-BC140563  Physocarpus capitatus Helen M. Edwards 1917-6-6 s.n. Butte De Sabla Comment
  CHSC100904  Physocarpus capitatus R. A. Schlising; R. Banchero 1981-5-16 4090 Butte Along Vilas Road, 2.2 miles east of its junction with Cohasset Road, in the village of Cohasset at the West Branch of Mud Creek.. 743 Comment
  CHSC52770  Phytolacca americana L. P. Janeway 1990-5-25 3691 Butte Campus of California State University, Chico; near Big Chico Creek along path from Holt Hall to the bridge across the creek towards Sylvester's Cafe-by-the-Creek. 57 Comment
  CHSC6602  Phytolacca americana M. MacArthur 1968-6-12 314 Butte SW yard of building D, Chico State College campus. 60 Comment
  CHSC956  Pickeringia montana 1954-3-30 Butte (Rag Dump 5) 3 mi. north of Paradise on Pentz Road. 457 Comment
  JEPS117720  Pilularia americana Lowell Ahart 2010-6-9 16779 Butte About 30 yards south of the poor dirt road, about 70 yards west of the fence, about 1/4 mile east of Cherokee Road, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville 392 Comment
  SEINET10872415  Pilularia americana Lowell Ahart 1984-5-7 Ahart 4588 Butte T22N R4E sec 31. Ca. 0.5 mi N of Kunkle Reservoir, along Kunkle Creek, ca. 2 mi S of Paradise, E side of Pentz-Magalia Hwy. Foothill Woodland; 600 m. 600 Comment
  CHSC61020  Pinus halepensis Vernon H. Oswald 1993-7-29 5738 Butte Gray Lodge Wildlife Management Area W of Gridley, along the return leg of the Tour Route, W of the headquarters complex 19 Comment
  NY61953  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
  UCD134797  Pinus monticola E. B. Copeland 1929-7-17 s.n. Butte Above Jonesville. 2000 Comment
  CAS-BOT-BC79016  Pinus ponderosa John Thomas Howell 1962-6-15 37431 Butte Magalia 731 Comment
  CAS-BOT-BC72806  Pinus sabiniana A. A. Heller 1913-3-9 10690 Butte Hills two miles north of Oroville. Comment
  CHSC39520  Piperia elongata Lowell Ahart 1983-6-12 4051 Butte About 1 mile south of Crystal hill, near Oregon Gulch, near Lake Oroville, about 7 miles south-west of Feather Falls. 425 Comment
  CHSC84863  Piperia elongata L. P. Janeway; John Hunt 2003-6-5 7808 Butte Northern Sierra Nevada Foothills. Top of low west-trending ridge into Lake Oroville 350 m west-southwest of the south end of Bidwell Bar Bridge, between the Oroville-Quincy Hwy and the lake. 296 Comment
  JEPS105663  Piperia elongata L. P. Janeway, Christine Hantelman 2003-6-19 7852 Butte Northern Sierra Nevada Foothills. Along south edge of Middle Fork Feather River arm of Lake Oroville, half way between mouth of South Fork Feather River arm of the lake and mouth of Bean Creek 277 Comment
  CHSC116578  Piperia transversa L. P. Janeway 2015-6-17 11779 Butte Northern High Sierra Nevada. Plumas National Forest; along east side of Lower Forbestown Road 0.15 km north of Ponderosa Way; 0.7 air-km west-southwest of Sunset Hill. West-facing slope above the road. 815 Comment
  CHSC27273  Pistacia chinensis P. Moyer 1971-10-1 19 Butte CSUC Campus. S side of Bidwell Mansion Along So-wil-len-no Ave. 60 Comment
  SEINET10529817  Pityrogramma pallida Mary Susan Taylor 1980-4-6 Taylor 2446 Butte T8N R5E ec border sec 3. Junction of Rocky Honcut Creek and Swedes Flat Rd, ca. 2 mi E of Oroville-Bangor Hwy, ca. 10 mi SE of Oroville. With L. Ahart & J.D. Jokerst. 366 Comment
  SEINET10834170  Pityrogramma triangularis Mary Susan Taylor 1980-6-14 Taylor 2869 Butte T21N R6E nw sec 29. Big Bend quad. Little Bald Rock, on granite dome, ca. 4 mi E of Lake Madrone. 1016 Comment
  CHSC90102  Pityrogramma triangularis var. pallida Michelle Y. Wagner 1990-3-3 2 Butte 7 mi e of Oroville, 5/6 mi se of intersection of Oro Bangor Hwy and Miners Ranch Rd. 30' n of Honcut Creek. 152 Comment
  SEINET10529962  Pityrogramma triangularis var. semipallida Mary Susan Taylor 1981-1-5 Taylor 3368 Butte T21N R4E sw sec 6. Cherokee quad. Ca. 100 ft e of Pentz-Magalia Hwy, ca. 1 mi s of Kunkle Reservoir, ca. 3 mi s of Paradise. Foothill Woodland and Savannah; 1350 ft. 411 Comment
  SEINET10834154  Pityrogramma triangularis var. semipallida Mary Susan Taylor 1979-9-28 Taylor 2201 Butte Butte County line at Hwy 70, between boundry and Arch Rock tunnel; granitic soils and dome outcrop. 488 Comment
  CAS-BOT-BC169829  Plagiobothrys M. S. Taylor 1975-4-29 541 Butte ca 100 yds. S of Pentz Rd, ca 1/4 mi E of Hwy 99, ca 15 mi S of Chico 30 Comment
  CHSC28151  Plagiobothrys austiniae Robert A. Schlising 1979-4-4 3351 Butte Northeast of Chico, along dirt road (formerly named Bruce Road) north of Skyway. In ditch. 76 Comment
  CHSC31258  Plagiobothrys bracteatus R. A. Schlising 1980-6-1 3610 Butte S of Paradise, at Kunkle Reservoir, off Pentz Hwy. 440 Comment
  CHSC37422  Plagiobothrys bracteatus R. A. Schlising 1982-5-19 4251 Butte E of village of Feather Falls, just N of Fall River and Fall River Campground. Meadow. 1036 Comment
  CHSC47996  Plagiobothrys bracteatus Vernon Oswald 1984-5-13 1185 Butte Calif. Hwy 32 at the second bridge w of Nord-Hamilton-Cana Hwy. In a slough. 39 Comment
  UC78216  Plagiobothrys bracteatus Mrs. R. M. Austin Apr. 1896 Butte Comment
  CHSC108802  Plagiobothrys canescens Lowell Ahart 2012-4-9 17486 Butte Near a small drainage, about 5 feet east of South Rim Trail, south part of Upper Bidwell Park, about 2 1/2 miles (air) northeast of Chico. 206 Comment
  CDA34705  Plagiobothrys fulvus L. Ahart 2010-5-16 16684 Butte About 1/4 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. Comment
  SEINET12320808  Plagiobothrys fulvus Unknown 1974-1 15 Butte adjacent to Fern Bank area, upper Bidwell Park Comment
  UC1609086  Plagiobothrys glyptocarpus Lowell Ahart 1993-5-17 6947 Butte dry vernal pool on w side of Dunstone Rd about 1 1/2 mi n and 3 mi e Honcut (about 12 mi se of Oroville) 60 Comment
  RSA325178  Plagiobothrys glyptocarpus M. S. Taylor, L. Ahart, J. Jokerst 1984-4-6 5408 Butte Ca. 0.5 mi N of Kunkle Reservoir, on E side of Pentz-Magalia Hwy, ca. 3 mi S of Paradise. Comment
  CHSC35063  Plagiobothrys greenei R. A. Schlising 1981-4-11 4022 Butte Chico, between Hwy 32 and Humboldt Road. 76 Comment
  CHSC46781  Plagiobothrys greenei Lowell Ahart 1980-5-4 2175 Butte On the bottom of a small vernal pool and along small swales in a pasture, south-west of the intersection of Nelson Avenue and 20th. Street in Thermalito. 60 Comment
  SD60250  Plagiobothrys greenei A. A. Heller 1926-3-22 13911 Butte Near the Hooker Oak, 4.0 miles east of Chico. Comment
  CHSC65331  Plagiobothrys hispidulus Lowell Ahart 1995-10-3 7667 Butte Along the north side of Butte Creek, about 150 yards east of the bridge across Butte Creek, in Butte Creek House Meadow, about 2 1/2 miles (air) north-east of Snag Lake. Meadow. 1767 Comment
  UC1609306  Plagiobothrys hispidulus Lowell Ahart 1993-9-13 7238 Butte small wash on n side Bolt Creek (about 1 mi se of Butte Meadows) 1325 Comment
  CHSC29050  Plagiobothrys humistratus R. A. Schlising 1980-4-20 3568 Butte Between Singer Creek and Cana-Pine Creek Road. In trail. Comment
  CHSC28985  Plagiobothrys nothofulvus R. A. Schlising 1980-3-23 3523 Butte E of Chico and SW of Paradise along Skyway. 289 Comment
  CHSC35055  Plagiobothrys scriptus R. A. Schlising 1981-3-30 4011 Butte E of Chico, on old Bruce Road, 0.5 mi N of Skyway; roadside. 79 Comment
  CHSC35056  Plagiobothrys scriptus R. A. Schlising 1981-3-16 4002 Butte About 3 miles E of Chico along Humboldt Road, paralleling Hwy 32. At roadside. 114 Comment
  CHSC46771  Plagiobothrys stipitatus Lowell Ahart 1982-4-29 3387 Butte On the bottom of a small vernal pool, near the check in station, Gray Lodge, about 12 miles south-west of Gridley. 30 Comment
  CHSC39626  Plagiobothrys stipitatus var. micranthus Lowell Ahart 1983-5-12 3972 Butte Found along the power line, about 1/2 mile north-east of Highway 99 and Pentz Road. 65 Comment
  JEPS117190  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2010-6-9 16786 Butte On Damp to wet dark soil, bottom of a small drainage, open grassy pasture field, 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 398 Comment
  JEPS123887  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2015-5-5 20137 Butte About 400 yards south of Larkin Road Boat Lunch Area, near the Thermalito Afterbay, about 1 miles southwest of the Oroville Airport, about 6 miles (air) southwest of Oroville Comment
  CDA34177  Plagiobothrys tenellus L. Ahart 2009-4-22 15571 Butte West side of Guardian s Trail, about 100 yards north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road. Approximately, 10 miles northeast of Chico. Comment
  CHSC33687  Plagiobothrys tenellus L. Ahart 1981-3-29 2710 Butte Along edge of Ponderosa Way near the Ponderosa Dam, near Forbestown. 350 Comment
  HSC32646  Plagiobothrys tenellus David Johnson 1974-4-20 61 Butte Table Mtn. Comment
  RSA638254  Plantago Michael A. Vincent, E. Freid 1998-4-6 8120 Butte Table Mountain Comment
  SEINET10499838  Plantago bigelovii Lowell Ahart 1983-4-10 Ahart 3919 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
  SEINET10968935  Plantago bigelovii Mary Susan Taylor 1984-4-6 Taylor 5397 Butte T22N R4E nw sec 3l. Ca. 0.5 mi N of Kunkle Reservoir, on E side of Pentz-Magalia Hwy, ca. 3 mi S of Paradise. Comment
  SEINET12328349  Plantago elongata Unknown 1984-1 4584 Butte Peter Ahart Ranch, ca 2.5 mi NE of Honcut, ca 12 mi S of Oroville 50 Comment
  SEINET10499848  Plantago erecta Lowell Ahart 1983-4-10 Ahart 3921 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
  JEPS115348  Plantago lanceolata Lowell Ahart 2009-7-3 15989 Butte 10 yards north of Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove, Lower Bidwell Park, Chico 67 Comment
  CHSC65171  Plantago major Lowell Ahart 1995-8-19 7610 Butte East side of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 3/4 miles east of Honcut, about 12 miles south-east of Oroville. 36 Comment
  CHSC99761  Plantago major Lowell Ahart 2008-7-23 15145 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
  SEINET13710809  Plantago virginica Lowell William Ahart, Lowell William Ahart 2000-1 8348 Butte Thermalito Afterbay W of Larkin Rd., 5 Air Mi. SW of Oroville, 140 Ft. (T19N, R3E, sec 27, SW 1/4) 43 Comment
  UC1609272  Platanthera leucostachys Lowell Ahart 1993-6-26 7006 Butte about 0.25 mi w Lost Creek Reservoir (on the n side of the dirt road) 1036 Comment
  CHSC109624  Platanus racemosa Lowell Ahart 2012-5-17 18074 Butte On the west side of a horse trail, about 40 yards north of Big Chico Creek, south of the southwest corner of the old walnut orchard, about 1/4 mile west of Peterson Drive, Lower Bidwell Park, Chico. 76 Comment
  CHSC6608  Platycladus orientalis M. MacArthur 1968-6-16 318 Butte On the Aymer Jay Hamilton School play field along the Esplanade, Chico State College campus. 60 Comment
  SEINET12318335  Plectritis ciliosa K. D. Johnson 1978-1 19 Butte on NW side of Neal Rd, 3.1 road mi SW of intersection with Skyway, Paradise 305 Comment
  SEINET10840003  Plectritis congesta Mary Susan Taylor 1980-4-1 Taylor 2428 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
  POM181674  Plectritis macrocera subsp. macrocera Williams 1927-4-11 s.n. Butte Near Chico Comment
  CHSC73945  Pleuricospora fimbriolata B. Castro; L. Gehrung 1998-6-23 795 Butte Ca 4.5 air mi NNE of Brush Creek, ca 1 mi SE of Rogers Cow Camp, on W side of Oro-Quincy Hwy, on E side of SW-trending ridge overlooking Get-Up-and-Get Creek. 1191 Comment
  UC105888  Pleuricospora fimbriolata Mrs. R. M. Austin July 1896 361 Butte Colby Comment
  CHSC27233  Poa annua P. Moyer 1972-3-4 101 Butte 2nd and Ivy, building next to Chicano Center, side yard. 60 Comment
  RSA726780  Poa annua L. Ahart 2007-3-19 13594 Butte Peter Ahart Ranch, about 1 3/4 miles north and 1 1/4 miles east of Honcut, about 12 miles south of Oroville. 35 Comment
  CHSC31930  Poa bolanderi J. D. Jokerst; L. Ahart, M. S. Taylor 1980-8-2 1037 Butte Top of Humboldt Peak on the E slope ca. 1/4 mi. below summit. Comment
  CAS-BOT-BC255063  Poa compressa John Thomas Howell 1962-6-16 37578 Butte Pentz Road 2 miles S of Magalia 609 Comment
  CHSC83100  Poa pratensis P. Moyer 1972-4-16 189 Butte CSUC Campus. S bank of Chico Ck. between Warner St. and New Dorm Bridge. 60 Comment
  CAS-BOT-BC255234  Poa pringlei E. B. Copeland 1931-6-22 606 Butte Jonesville 2000 Comment
  CHSC100189  Poa secunda subsp. secunda John Dittes 1992-5-5 465 Butte Sierra Nevada Range Foothills; ca. 2.6 air miles southeast of Paradise Civic Center, ca. 1.8 air mile west of West Branch of Feather River, ca. 1.3 air mile northwest of Kunkle Reservoir; slope above tributary drainage of Dry Creek, south of terminus of Libby Road. 445 Comment
  UCD91611  Poa secunda subsp. secunda L. E. Hazeltine 1916-7-16 s.n. Butte Appleton. Comment
  SEINET10968992  Pogogyne zizyphoroides Mary Susan Taylor 1975-4-29 Taylor 538 Butte Abundant in fields ca. 50-500 yds S of Pentz Road, ca. 1/4 mi E of Hwy 99, ca. 15 mi S of Chico. With Layia fremontii, Achyrachaena mollis, Delphinium spp. Comment
  JEPS103459  Polanisia dodecandra subsp. trachysperma Lowell Ahart 2002-9-27 9938 Butte Along the E side of the Sacramento River, NW of Parrott Landing, ca 1 mile SE of Ord Ferry, ca 2 miles SE of Ordbend, ca 12 miles (air) SW of Chico. 32 Comment
  RSA722691  Polanisia dodecandra subsp. trachysperma R. R. Halse 2006-8-2 6980 Butte Chico. In the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  UC398942  Polemonium occidentale subsp. occidentale E. B. Copeland 1929-7-28 392 Butte Jonesville 1500 Comment
  CHSC25467  Polemonium pulcherrimum Hayes; Warner 1977-9-11 87 Butte Near top of Humboldt Peak, ca. 2 km e of Humboldt Summit on Butte-Tehama County line. 2133 Comment
  UC600676  Polemonium pulcherrimum E. B. Copeland July, 1930 Butte Big Summit Jonesville, Big Summit 2200 Comment
  CHSC45569  Polycarpon tetraphyllum John T. Howell 1974-5-3 50334 Butte Sidewalk east of Wells Fargo Bank, at the Shell Gas Station, in Gridley. 30 Comment
  RSA107421  Polygala cornuta var. cornuta L. S. Rose 1955-6-15 55102 Butte 6 miles SE of Paradise on Pentz Rd. 427 Comment
  SEINET10871692  Polygonum aviculare Mary Susan Taylor 1978-7-21 Taylor 1793 Butte Vicinity of Lake Madrone, at Oroville- Quincy Hwy turnoff, ca. 10 mi NE of Oroville; Yellow Pine Forest. 610 Comment
  CAS-BOT-BC414192  Polygonum aviculare subsp. depressum Lowell Ahart 1987-9-24 5893 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  CAS-BOT-BC414196  Polygonum aviculare subsp. depressum A. A. Heller 1919-8-9 13349 Butte At Chico Comment
  CAS-BOT-BC109132  Polygonum bidwelliae A. A. Heller 1927-5-18 14391 Butte Along Neale grade on road from Chico to Paradise. Comment
  CAS-BOT-BC109136  Polygonum bidwelliae Lowell Ahart 1979-5-29 s.n. Butte 2.5 mile southeast of Paradise. Near Kunkle Creek. 500 Comment
  CHSC25536  Polygonum bidwelliae Robert A. Schlising 1977-8-11 Butte Along Skyway, 1.2 mi s of jct with Neal Road in Paradise. Comment
  CHSC74694  Polygonum bidwelliae B. Castro 1998-6-13 790 E Butte Ca 5.5 air mi SE of Town of Paradise, directly opposite County Landfill, at edge of N side of unnamed canyon just S of Neal Road, under transmission lines. 128 Comment
  CHSC85423  Polygonum bidwelliae John Dittes 1992-5-5 473 Butte Sierra Nevada Range Foothills; ca. 2.6 air-miles southeast of Paradise Civic Center, ca. 1.8 air-miles west of West Branch Feather River, ca. 1.3 air-mile northwest of Kunkle Reservoir; slope above tributary drainage of Dry Creek, south of terminus of Libby Road. 445 Comment
  CHSC90474  Polygonum bidwelliae Lowell Ahart; Paul Maslin, John Dittes 2005-3-17 11675 Butte Big Chico Creek Ecological Reserve. Ridge top, about 50 yards south 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
  RSA781354  Polygonum bidwelliae Anna Kostikova, Glenn Litsios, Sarah Burgy 2010-7-1 154 Butte Hwy 32 (Deer creek hwy), Bidwell park Comment
  UC1259773  Polygonum bidwelliae Lowell Ahart 1979-5-7 Butte ca 1/2 mi n Kunkle Reservoir (ca 1/4 mi of the Pentz-Magalia Hwy, 2 1/2 mi se of Paradise) 472 Comment
  CAS-BOT-BC109149  Polygonum bolanderi Dean W. Taylor 1988-8-12 10048 Butte Road to Butte Meadows, 3.2 miles northeast from Highway 32. 1341 Comment
  CHSC113153  Polygonum californicum Lowell Ahart 2013-11-13 19255 Butte Between the road and the large cutbank, about 50 yards southeast of the Ponderosa Dam spillway. 299 Comment
  UC466038  Polygonum californicum Mrs. R. M. Austin Apr. 1896 174 Butte plains Comment
  CHSC11918  Polygonum douglasii subsp. douglasii E. B. Copeland 1930-7-24 630 Butte Jonesville. 1500 Comment
  JEPS110392  Polygonum douglasii subsp. douglasii Lowell Ahart 2006-8-15 13189 Butte East part of a large meadow with bogs, 5 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
  UC203866  Polygonum douglasii subsp. douglasii A. A. Heller 1914-7-23 11603 Butte woods about Chico Meadows 1219 Comment
  SEINET10838777  Polygonum kelloggii Mary Susan Taylor 1978-7-19 Taylor 1765 Butte On E side of Upper Scotts John Road, ca. 3 mi N of its junction with Scotts John Road, ca. 7 mi E of Jonesville. 1890 Comment
  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
  CHSC48664  Polygonum parryi Vernon Oswald 1986-5-6 1997 Butte Cohasset ridge along the dirt road paralleling Cohasset Hwy on the south. 457 Comment
  CDA13842  Polygonum persicaria G. F. Hrusa, T. D. Wilfred 1996-9-5 13570 Butte Butte Basin; Butte Creek immed. below Western Canal District Dam. Comment
  RSA725033  Polygonum persicaria L. Ahart 2006-8-29 13236 Butte N of the canal and parking lot 16, W of the gravel road, Gray Lodge Wildlife area (Gray Lodge Waterflow Management area). 20 Comment
  SEINET13711418  Polygonum persicaria Lowell William Ahart, Lowell William Ahart 1999-1 8270 Butte 12 Air Mi SW of Chico, 2 Mi SE Ordbend, Sacramento River Comment
  SEINET10479669  Polygonum persicaria Mary Susan Taylor 1975-10-3 Taylor 924 Butte At bridge over Little Chico Creek on River Road, ca. 10 mi W of Chico; Ripar ian Woodland disturbed area. 37 Comment
  UC478530  Polygonum phytolaccifolium E. B. Copeland 1930-8-4 628 Butte Jonesville; along streams 1500 Comment
  SEINET10970715  Polygonum punctatum Lowell Ahart 1991-9-14 Ahart 6714 Butte On the sides of a large reservoir, Joie Osgood Ranch, about 2 miles east of Honcut. Valley Grassland. T17N R4E S/C/S14. 46 Comment
  UC466037  Polygonum sawatchense subsp. sawatchense Mrs. R. M. Austin Apr. 1896 148 Butte grain fields Comment
  CAS-BOT-BC71870  Polypodium californicum Lowell Ahart 1979-5-12 s.n. Butte Peter Ahart Ranch, Honcut, N Honcut Creek 50 Comment
  CHSC33346  Polypodium calirhiza Steve Alvarez 1980-3-24 13 Butte Ca. 4.7 km e of Chico, 2.1 km wsw of Paradise, 0.1 km s of n edge of Coon Ridge, 0.2 km n of Skyway. 270 Comment
  CHSC33692  Polypodium calirhiza L. Ahart 1981-3-29 2716 Butte Along or near Ponderosa Way, ca. 1/4 mi s of Ponderosa Dam, near Forbestown. 350 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
  SEINET10530416  Polypodium glycyrrhiza Mary Susan Taylor, L. Hanson 1981-4-2 Taylor 3469 Butte T20N R7E ne sec 32; Clipper Mills quad. South side of Forbestown Reservoir, in serpentine cliff, south side of Rd 20N29, ca. 3 air mi north of Woodleaf. l800 ft. 549 Comment
  UC184159  Polypogon australis A. A. Heller 1913-6-4 10775 Butte Table Mountain Olive Ranch n Oroville; Table Mountain Olive Ranch Comment
  UCD80605  Polypogon australis CNPS SN Foothill Team 2005-5-25 SNNR 0266 b Butte 209 Comment
  CAS-BOT-BC233056  Polypogon interruptus Lowell Ahart 1980-7-29 2515 Butte Along lower Forbestown Road 750 Comment
  CDA2331  Polypogon interruptus A. A. Beetle 1941-6-27 2745 Butte Near Lomo, 13 miles west of Chester, near road to Chico Creek. 0 Comment
  CHSC30550  Polypogon interruptus J. D. Jokerst; M. S. Taylor 1980-9-11 635 Butte Adjacent to rice fields, 50 ft N of Goodspeed-Watt Rd, 0.2 mi N of its jct with Nelson Rd (ca 6 mi S of Chico). Comment
  CHSC34177  Polypogon interruptus L. Ahart 1981-9-15 3158 Butte On sides of Pinkard Creek, ca. 1/2 mi n of Lost Creek Reservoir. 1100 Comment
  CHSC38851  Polypogon interruptus Vernon Oswald 1983-5-8 448 Butte Upper Bidwell Park, Chico, in the bed of Lindo Channel between Five-Mile Rec. Area and the flood-control gates. 79 Comment
  CHSC42450  Polypogon interruptus Lowell Ahart 1987-5-27 5699 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
  JEPS103559  Polypogon interruptus Lowell Ahart 2002-4-15 9492 Butte On the E side of a canal bank, on the W side of Faris Road, 3 miles W of West Biggs Gridley Road, ca 3 miles (air) SW of Biggs. 24 Comment
  CDA2346  Polypogon monspeliensis L. Ahart 2002-5-7 9635 Butte East side of Cherokee Road, North Table Mountain, about 4 miles (air) north of Oroville. At the beginning of the southeast branch of Schirmer Ravine, about 50 yards east of the pond. Comment
  CHSC44607  Polystichum imbricans Vernon Oswald 1982-11-14 15 Butte Near Doon Campground, ca. 1 mi e of Lovelock (Skyway between Paradise and Stirling City). 853 Comment
  SEINET10470608  Polystichum imbricans Lowell Ahart, Peter Ahart 1983-7-24 Ahart 4213 Butte T20N R7E ne sec 32. At the Forbestown Reservoir, ca. 5 mi ne of Forbestown. Yellow Pine Forest; 450 m. 450 Comment
  CHSC58867  Polystichum imbricans subsp. imbricans Lowell Ahart 1992-7-29 6881 Butte About 1 mile east of the Carr Mine, about 1/2 mile north-west of Lotts Lake. 1828 Comment
  CHSC37655  Polystichum munitum T. B. Devine 1981-8-25 758 Butte Beside Hwy 70 near Bear Ranch Creek, along N Fork of Feather River near Cresta. 426 Comment
  SEINET10840498  Porterella carnosula Edwin B. Copel 1929-7-29 Copeland s.n. Butte On drying border of pond, above Jonesville 1750 Comment
  SEINET10501689  Potamogeton crispus Mary Susan Taylor 1982-5-22 Taylor 4496 Butte T17N R1E se/se sec 3. Pennington quad. Graylodge Wildlife Refuge, Riparian Woodland at end of West Liberty Rd, ca. 12 mi sw of Gridley. 63 ft. 19 Comment
  CHSC65474  Potamogeton filiformis Vernon Oswald 1987-5-25 2927 Butte Butte Creek Reserve on the n side of Butte Creek ne of the Skyway. In a pond along a channel. 79 Comment
  UCD23442  Potamogeton gramineus W. H. Lang 1954-8-12 s.n. Butte Biggs Rice Experimental Station. Leaves floating on top of water, in irrigation canal alongside of rice plot. Comment
  SEINET3837458  Potamogeton heterophyllus Unknown 1930-7-28 406 Butte Above Jonesville 1700 Comment
  CHSC46885  Potamogeton pectinatus Vernon H. Oswald 1989-9-4 3977 Butte Wurlitzer Unit, Vina Plains Preserve. In the farm pond. 56 Comment
  UCR190829  Potentilla glandulosa 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
  RSA4662  Potentilla gracilis var. fastigiata E. B. Copeland 1929-7-24 372 Butte Jonesville. 1550 Comment
  UC860934  Potentilla gracilis var. fastigiata A. A. Heller 1917-7-26 12836 Butte Butte Meadows 1280 Comment
  UCD122113  Proboscidea louisianica subsp. louisianica A. A. Heller 1914-5-30 11467 Butte Chico-Hamilton, 6 miles from Chico. Comment
  CHSC28927  Prunella vulgaris var. lanceolata M. S. Taylor 1978-7-21 1819 Butte On s side of Oroville-Quincy Hwy along creek, in a meadow, ca. 14 mi n of Lake Madrone. 1463 Comment
  CHSC27213  Prunus caroliniana P. Moyer 1972-4-9 162 Butte CSUC Campus. Off path to camillia stand, n side of Chico Creek. 60 Comment
  POM196545  Prunus emarginata H. F. Copeland 1929-6-10 1200 Butte Jonesville. 1524 Comment
  UC478508  Prunus emarginata E. B. Copeland 1931-7-28 650 Butte w of North Willow Creek (Jonesville); Jonesville 1650 Comment
  RSA595071  Prunus persica var. persica J. T. Howell 1976-7-14 51816 Butte Feather River Canyon Hwy, just E of Jarbo Gap SW of Bucks Lake on road to Oroville. 640 Comment
  CHSC28977  Pseudobahia heermannii R. A. Schlising 1980-3-17 3515 Butte E of Chico and SW of Paradise, along Skyway; on cliff edges above Butte Creek. 213 Comment
  POM29966  Pseudobahia heermannii C. C. Bruce 1897-05 1995 Butte Butte Creek. Comment
  CHSC113158  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
  CHSC31461  Pseudognaphalium luteoalbum M. S. Taylor 1981-1-5 3372 Butte In seep, ca. 100 ft e of Pentz-Magalia Hwy, ca. 1 mi s of Kunkle Reservoir, ca. 3 mi s of Paradise. 411 Comment
  CHSC46080  Pseudognaphalium luteoalbum Lowell Ahart 1989-3-25 6196 Butte Lake Oroville, about 1/8 mile north-west of the West Branch Bridge across Lake Oroville. 271 Comment
  SFV11416  Pseudognaphalium luteoalbum M. L. Vincent 1965-4-16 621 Butte Pentz Road and Highway 70 below highway in ravine. Comment
  JEPS88522  Pseudognaphalium stramineum Lowell Ahart 1996-6-25 7685 Butte about 1 1/4 mi n and 1/2 mi e Honcut (about 12 mi s of Oroville); Peter Ahart Ranch 36 Comment
  CAS-BOT-BC357591  Pseudognaphalium stramineum Lowell Ahart 1988-6-23 6079 Butte South of the intersection of Black Bart Road and Forbestown Road, about 1 mile west of Robinson Mill Road 670 Comment
  CHSC38353  Pseudognaphalium thermale Vernon Oswald 1983-8-10 975 Butte Upper Bidwell Park, Chico, on the n rim overlooking Sycamore Creek Canyon ca. 2200 ft w of the turn-around at the e end of the North Rim Trail. 390 Comment
  CHSC3906  Pseudotsuga menziesii var. menziesii R. Carter 1966-7-31 500 Butte Found ca. 17 mi. NE of Oroville on W side Big Bald Rock along E side Bald Rock Rd. where road turns off to campground. 1066 Comment
  CHSC90235  Pseudotsuga menziesii var. menziesii Eric M. Haney 1989-4-23 14 Butte Found on w side of Hwy 32, ca. 2 km n of Forest Ranch. Comment
  CHSC108995  Psilocarphus oregonus Lowell Ahart 2012-4-30 17939 Butte On both sides of Guardian Trail, south of Ten Mile House Road, about 1/8 mile west of Highway 32, about 8 1/2 miles northeast of Chico, south part of Upper Bidwell Park. 401 Comment
  CHSC80514  Psilocarphus oregonus Lowell Ahart 2001-4-27 8734 Butte Just northwest of the bridge across Wyandotte Creek, northof Lower Honcut Road, about 125 yards west of the Railroad, about 1 1/4 mile east of Highway 70, about 1 3/4 miles west of Honcut, about 14 miles (air) south of Oroville. 26 Comment
  CAS-BOT-BC361919  Psilocarphus tenellus Lowell Ahart 1989-5-23 6245 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
  JEPS119988  Psilocarphus tenellus Lowell Ahart 2012-4-30 17939 Butte On both sides of Guardian Trail, south of Ten Mile House Road, about 1/8 mile west of Highway 32, about 8 1/2 miles northeast of Chico, south part of Upper Bidwell Park. Comment
  CHSC46966  Psilocarphus tenellus var. globiferus Lowell Ahart 1979-5-11 1867 Butte In a grain field, Peter Ahart Ranch, about 2 miles north and 3/4 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC70975  Psilocarphus tenellus var. tenellus Vernon Oswald 1998-5-6 8989 Butte Upper Bidwell Park (new addition), South Rim Trail ca. 0.25 mi west of Pine Trail. 396 Comment
  CHSC62505  Ptelea crenulata B. Castro 1987-5-18 112 Butte CA 9 mi E of Chico via Hwy 32 and ca 2 mi E on Altatina Drive. 451 Comment
  CHSC2448  Pterospora andromedea R. Carter 1965-7-6 274 Butte Found along E side of Oroville-Quincy Rd., 5.2 mi. N of Mountain House, ca. 15' from road in open woods. 1219 Comment
  UC436292  Pterospora andromedea E. B. Copeland July, 1930 Butte Jonesville 1550 Comment
  CHSC53990  Puccinellia simplex Vernon H. Oswald 1991-4-25 4532 Butte West Liberty Rd, 0.8 mi west of Pennington Rd, on the north edge of Gray Lodge Wildlife Area. Flat on the south side of the road just west of the PG and E Substation. 20 Comment
  RSA0080541  Pyrola asarifolia M. B. Dunkle 1931-8-12 2618 Butte Paradise Valley. Comment
  SEINET178410  Pyrola asarifolia subsp. asarifolia E. B. Copeland 1931-7-1 670 Butte Jonesville 1500 Comment
  UC177572  Pyrola picta H. M. Hall 1914-7-23 9779 Butte near Jonesville 1584 Comment
  UC1609015  Pyrola picta var. picta Lowell Ahart 1993-9-8 7159 Butte North-west 1/4 Section 3. about 1 mile east of Snow Mountain 2072 Comment
  UC338404  Quercus Lemmon Butte Bidwell's Comment
  RSA134789  Quercus berberidifolia Percy C. Everett, E. K. Balls 1959-10-20 23907 Butte 8.6 miles ne. from Chico along State Hwy. 32, toward De Sabla. 488 Comment
  POM106172  Quercus douglasii C. C. Bruce 1897-05 1797 Butte Little Chico. Comment
  CHSC42532  Quercus durata var. durata Lowell Ahart 1987-5-11 5618 Butte South of the Forbestown Ditch, about 2 1/2 miles north-east of Forbestown. 868 Comment
  SEINET10970839  Quercus kelloggii Mary Susan Taylor 1981-5-21 Taylor 3763 Butte T22N R4E nw sec 15, Paradise SE quad. S side of Lake Concow, ca. 5 mi E of Paradise. Yellow Pine Forest; 2100 ft. 640 Comment
  CHSC77341  Quercus lobata L. P. Janeway 2000-3-29 6648 Butte Sacramento Valley. At edge of River Road 0.5 mi south of Hwy 32; near Pine Creek. Along fenceline between road and orchard. 43 Comment
  CAS-BOT-BC104688  Quercus wislizeni J. E. Morrow 1934-10-26 s.n. Butte near Chico Comment
  CAS-BOT-BC379413  Ranunculus alismifolius var. alismellus H. F. Copeland 1920-7-11 67 Butte Scotch John Meadows 1829 Comment
  CHSC20721  Ranunculus aquatilis var. capillaceus M. S. Taylor 1975-8-31 890 Butte On edge of Ernies Island in Butte Creek, ca. 50 ft s of Humboldt Rd, ca. 1/2 mi e of Butte Meadows. 1341 Comment
  CHSC8744  Ranunculus aquatilis var. hispidulus S. Chulasmai 1966-5-20 43 Butte Horseshoe Lake. Comment
  CHSC118580  Ranunculus arvensis L. P. Janeway; B. Castro 2017-4-22 12192 Butte Sacramento Valley. City of Chico; north side of E. 20th Street at Notre Dame Blvd, an area eventually to be developed into houses and businesses. 73 Comment
  CHSC29048  Ranunculus bonariensis var. trisepalus R. A. Schlising 1980-4-14 3565 Butte Richvale vernal pools; 1/4 mi s of junction Hwy 162 to Oroville and Hwy 99, along latter and across from Thermalito Afterbay; in ditch at s end of area. Comment
  CHSC45399  Ranunculus bonariensis var. trisepalus Lowell Ahart 1974-4-7 357 Butte In a pond, Peter Ahart Ranch, about 1 mile north and 1 mile east of Honcut, about 12 miles south of Oroville. 42 Comment
  SEINET12100195  Ranunculus californicus Unknown 3 s.n. Butte no further locality Comment
  CHSC52780  Ranunculus canus Vernon Oswald 1983-3-19 198 Butte Upper Bidwell Park, Chico, on the n edge of Upper Park Rd. near Devil's Kitchen (2.1 mi e of the power lines). 225 Comment
  CHSC52788  Ranunculus canus J. D. Jokerst; M. S. Taylor 1980-2-24 452 Butte Along hillsides at base of rimrock ca 0.5 mi E of Richardson Springs. 243 Comment
  CHSC76958  Ranunculus canus Margie Collins 1894-5-1 Butte Chico. Comment
  POM150698  Ranunculus canus A. A. Heller, H. E. Brown 1902-5-3 5220 Butte Near Nelson. Comment
  POM99363  Ranunculus canus C. C. Bruce 1898-05 2437 Butte [No location data on label] Comment
  CHSC45401  Ranunculus flammula var. ovalis Lowell Ahart 1981-8-15 3032 Butte Bottom of Snag Lake, on the north side of Snag Lake, about 10 miles north of Inskip. 1371 Comment
  CHSC52122  Ranunculus hebecarpus Scott Lorbeer 1984-4-10 16 Butte Ca. 12 mi nw of Chico at jct of Broyles Road and Hwy 99, on w side of Hwy 99. 60 Comment
  SEINET10536142  Ranunculus muricatus Mary Susan Taylor 1980-4-1 Taylor 2416 Butte T22N R2E sw border sec 30. Valley Grassland, ungrazed vernal drainages, between Notre Dam Blvd. and Hwy 99, and the Skyway and Humboldt Road, just E of Chico; area soon to be developed. 70 Comment
  CHSC1489  Ranunculus occidentalis R. Carter 1964-3-15 45 Butte 8 mi. E of Oroville, 250 yds. up Wakefield Dr. off Feathervale. 121 Comment
  CHSC3805  Ranunculus occidentalis R. D. Briggs 1966-3-2 50 Butte Salmon Hole,' 4 miles above the Bidwell Park golf course, Chico. 106 Comment
  JEPS43466  Ranunculus occidentalis Joan O. Danielson 1966-4-6 6 Butte Cherokee Rd. 1 mi. s. on way to Table Mt. 609 Comment
  SD1766  Ranunculus populago E. B. Copeland 1930-6-25 640 Butte Jonesville 1500 Comment
  CHSC10657  Raphanus raphanistrum Lowell Ahart 1966-3-15 Butte Peter Ahart Ranch, Honcut. 42 Comment
  RSA256670  Raphanus sativus J. L. Hobson 1974-4-20 19 Butte 300 yrds along Pentz Road from the intersection of Clark and Pentz Roads. Comment
  SEINET13946269 Image available Rhamnus californica Lewis S. Rose 1955-1 55097 Butte Magalia; 2400 ft alt. 732 Comment
  CAS-BOT-BC59880  Rhamnus ilicifolia Paul Leskinen 1972-9-9 1420 Butte Highway 155 e. of Glenville. 914 Comment
  RSA518961  Rhamnus purshiana C. R. Quick 1952-6-29 5192 Butte Near spring, 0.3 miles W of Coyote Gap on Mill Creek road Comment
  JEPS88908  Rhamnus rubra Lowell Ahart 1994-6-5 7309 Butte about 3.5 mi sw Forbestown (s of the intersection of Black Bart Road and Forbestown Road) 609 Comment
  UC478501  Rhamnus rubra E. B. Copeland 1931-7-28 657 Butte w of North Willow Creek; Jonesville 1650 Comment
  CHSC83010  Rhamnus tomentella subsp. tomentella Lowell Ahart 2002-9-9 9937 Butte Meadow, 100 yards south of the intersection of Black Bart Road and Forbestown Road, about 3 1/2 miles (air) southwest of Forbestown. 753 Comment
  CHSC108974  Rhododendron Lowell Ahart; John Dittes, Josephine Guardino 2012-4-6 17809 Butte On the north side of Big Chico creek, Lost Park in Bidwell Park, city of Chico. 60 Comment
  CAS-BOT-BC56641  Rhododendron occidentale L. P. Janeway 1995-6-28 4821 Butte Top of Watson Ridge at junction of Roads 21N24 and 21N25; about 1.5 mi west of Kenebeck Ridge 1249 Comment
  CHSC43880  Rhododendron occidentale L. P. Janeway 1987-5-10 2055 Butte Near Robley Point; along dirt road 3 mi from Stirling City towards West Branch Feather River. 914 Comment
  CHSC21041  Rhus aromatica M. S. Taylor 1975-6-30 820 Butte Ca. 1/4 mi w of Cohasset Hwy, ca. 400 ft n of Greenwood Store, Cohasset. 853 Comment
  CHSC44063  Rhynchospora californica L. P. Janeway 1988-6-14 2761 Butte NW side of cyn of Little Chico Cr ca 2 air mi S of Ten Mile House. 259 Comment
  SBBG17304  Ribes bracteosum M. Vincent 1962-4-15 184 Butte The Skyway, 1 mi S of Stirling City Comment
  UC600614  Ribes cereum H. F. Copeland 1931-6-11 Butte Kirby Meadows Jonesville Comment
  UC600615  Ribes inerme var. inerme H. F. Copeland 1930-7-25 Butte Jonesville, meadow below cabin Jonesville Comment
  UC79695  Ribes nevadense T. S. Brandegee 1892-6-29 Butte Jonesville Comment
  CHSC44939  Ribes roezlii Richard Steward 1988-4-25 8 Butte Ca. 6 mi n, 1.5 mi nw of Paradise. 640 Comment
  JEPS27767  Ribes roezlii A. A. Heller 1938-5-1 15057 Butte forest near DeSabla 853 Comment
  UC478510  Ribes roezlii E. B. Copeland 1931-5-9 648 Butte Jonesville 1500 Comment
  RSA0024711  Ribes roezlii Carl B. Wolf 1941-7-23 11055 Butte Northern Sierra Nevada. On Chico - Lake Almanor Road (Calif. Highway 32), approx. 5 miles North of Forest Ranch. 915 Comment
  CAS-BOT-BC198958  Ribes roezlii var. roezlii M. S. Taylor 1982-5-23 4513 Butte S side of Hwy 70, vicinity of Arch Rock Tunnel ca. 0.5 mi SW of Butte-Plumas county line. 487 Comment
  SEINET13942864 Image available Ribes viscosissimum A. A. Heller 1915-1 12032 Butte Summit of the Sierra Nevada above Jonesville, elevation 7000 feet, on the summit of a ridge about rocks. 2134 Comment
  CHSC43654  Rorippa curvisiliqua var. occidentalis Vernon Oswald 1984-5-13 1186 Butte Calif. Hwy 32 at the second bridge w of Hord-Hamilton-Cana Hwy. In the bed of a slough. 39 Comment
  CHSC36688  Rorippa curvisiliqua var. orientalis R. E. Preston 1982-7-16 342 Butte Near small stream; ca. 1/2 mi sw of Crane Valley. 1554 Comment
  CHSC43212  Rosa bridgesii L. P. Janeway 1987-6-19 2240 Butte Side ravine south from Sly Cr; 1.6 mi from the Challenge-LaPorte Rd along the road to the SE side of Sly Cr Reservoir. 1097 Comment
  CAS-BOT-BC148125  Rosa gymnocarpa Helen M. Edwards 1917-6-1 s.n. Butte DeSabla Comment
  CHSC39356  Rosa gymnocarpa L. Ahart; P. Ahart 1983-9-21 4464 Butte Along French Creek, ca. 3 mi n of the Sly Creek Dam, n of Strawberry Valley. 900 Comment
  CAS-BOT-BC148317  Rosa pisocarpa A. A. Heller 1938-7-20 15283 Butte In a meadow upper end of Snag Lake, 7 miles east of Chaparral. 1524 Comment
  CHSC45800  Rosa pisocarpa subsp. ahartii L. P. Janeway 1988-6-5 2730 Butte Cyn of Big Chico Cr ca 1 mi NE of end of Upper Park Rd. Adjacent to the creek. 213 Comment
  UC176377  Rosa pisocarpa subsp. ahartii A. A. Heller 1913-6-7 10801 Butte near Stirling 1074 Comment
  CHSC6629  Rosa spithamea M. MacArthur 1968-6-17 301 Butte NW yard of Building U on the Chico State College campus. 60 Comment
  SEINET10597109  Rostraria cristata A. Arthur Heller 1914-5-19 Heller 11417 Butte Hills 8 miles north of Oroville. Comment
  CHSC112600  Rotala ramosior Lowell Ahart 2013-9-20 19059 Butte Along a ditch, about 100 yards west of the railroad, about 400 yards south of the Rice Experiment Station buildings, about 2 miles southeast of Richvale. 30 Comment
  CHSC116725  Rubus armeniacus Lowell Ahart 2016-5-24 20867 Butte On the bottom of a large drainage, about 100 yards north of the ditch, about 100 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. 44 Comment
  CHSC37663  Rubus armeniacus T. B. Devine 1981-9-3 769 Butte In dry or drying mud at edge of Horseshoe Lake, Upper Bidwell Park, Chico. 106 Comment
  POM91428  Rubus macropetalus C. C. Bruce 1897-05 1793 Butte Big Chico. Comment
  CAS-BOT-BC147200  Rubus parviflorus E. B. Copeland 1930-7-16 419 Butte Jonesville 1600 Comment
  POM193375  Rubus parviflorus E. B. Copeland 1930-7-16 419 Butte Jonesville. 1600 Comment
  UC481513  Rubus parviflorus H. F. Copeland 1930-8-26 1328 Butte above hotel (Jonesville); Jonesville Comment
  CHSC65434  Rubus pensilvanicus Vernon Oswald 1987-4-15 2329 Butte Dredger tailings on the w side of Hwy 99 ca. 0.5 mi n of Butte Creek Bridge. 65 Comment
  SEINET10483603  Rubus procerus Mary Susan Taylor 1975-5-24 Taylor 771 Butte Lower Bidwell park, between Cork Oak Grove and Cypress Grove Picnic Area, Chico. 61 Comment
  CHSC43134  Rudbeckia occidentalis Robert Banchero 1981-7-11 563 Butte 1 mi s of Coyote Gap. 1121 Comment
  CHSC38623  Rumex salicifolius var. denticulatus Vernon Oswald 1982-8-9 Butte Upper Bidwell Park, Chico, in Lindo Channel near Five Mile Recreation Area. 85 Comment
  CHSC50030  Sagina decumbens subsp. occidentalis Lowell Ahart 1990-4-15 6459 Butte Below the high water line of Lake Oroville, east of the Enterprise Boat Launch Area, about 1/8 mile north-west of the Enterprise Bridge across Lake Oroville. 289 Comment
  CHSC93977  Salix exigua R. D. Fischer 2004-6-20 772 Butte Sierra Nevada Mountains, north-east corner of Butte County and ca. 4 miles north of Butte Meadows off Scout Road. Boy Scout Camp. Along water edge at south end of pond. 1371 Comment
  CHSC108766  Salix gooddingii L. P. Janeway 2011-5-9 10253 Butte Sacramento Valley. South side Feather River just east of Bedrock Park, Oroville; about 10-15 m back from the edge of the water. 42 Comment
  JEPS119534  Salix gooddingii Lowell Ahart 2012-4-20 17892 Butte About 50 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. Comment
  JEPS119585  Salix gooddingii Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17866 Butte On the south side of Big Chico Creek, east of the Deer Pen, between Table 12 & 13, Lower Bidwell Park, Chico. Comment
  CHSC65019  Salix jepsonii Vernon Oswald 1988-6-20 3410 Butte Jones Meadow Rd. e of Inskip at Last Chance Creek. 1560 Comment
  RSA0045619  Salix laevigata Lowell A. Ahart 2012-4-9 17848 Butte About 50 feet west of South Rim Trail, south part of Upper Bidwell Park, about 2 1/2 miles (air) northeast of Chico. 209 Comment
  SD934  Salix lasiandra var. lasiandra E. B. Copeland 1931-6-10 619 Butte Jonesville, alogs stream 1500 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
  RSA28802  Salix lasiolepis A. A. Heller 1914-4-27 11324 Butte 8 miles N of Oroville. 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
  CAS-BOT-BC124575  Salix lemmonii E. B. Copeland 1931-6-11 620 a Butte Jonesville, Kirby's Meadow 1750 Comment
  UC446427  Salix lemmonii E. B. Copeland 1931-6-11 Butte Kirby's <Beadow> 1800 Comment
  UC446428  Salix ligulifolia E. B. Copeland 1931-6-18 Butte highest Willow Creek meadow Jonesville; , Willow Creek 1550 Comment
  RSA31117  Salix lucida subsp. lasiandra A. A. Heller 1914-7-23 11594 Butte On the headwaters of Chico Creek in Chico meadows. 1220 Comment
  SBBG29040  Salix lucida subsp. lasiandra E. B. Copeland 1931-6-10 Butte Jonesville 1500 Comment
  CHSC65012  Salix melanopsis Vernon Oswald 1987-7-6 3094 Butte Butte Creek Reserve on the s side of Butte Creek, ca. 0.25 mi e of the Hwy 99 bridge. 67 Comment
  POM107064  Salix melanopsis C. C. Bruce 1806 Butte Chico. Butte Creek. Comment
  SBBG29048  Salix melanopsis E. B. Copeland 1931-6-10 Butte Butte Crk, Jonesville 1500 Comment
  UC446423  Salix melanopsis E. B. Copeland 1931-6-20 Butte across Butte Creek Jonesville 1500 Comment
  CAS-BOT-BC125950  Salix scouleriana E. B. Copeland 1931-7-30 624 Butte Jonesville 1550 Comment
  CHSC11988  Salix scouleriana E. B. Copeland 1931-7-30 624 Butte Jonesville. 1550 Comment
  CAS-BOT-BC221112  Salvia sonomensis E. B. Copeland 1899-5-1 s.n. Butte Chico Comment
  CHSC62751  Salvia sonomensis L. P. Janeway; Barbara Castro 1993-5-18 4348 Butte North side of Oroville-Quincy Hwy on north side of Lake Madrone. 603 Comment
  CHSC88963  Salvia sonomensis Christine Hantelman 2000-4-3 60 Butte Cohasset Ridge. Under power lines. 350 Comment
  UC215467  Salvia sonomensis A. A. Heller 1915-4-12 11810 Butte near Cohasset (Sierra foothills); Sierra Comment
  RSA4458  Sambucus caerulea E. B. Copeland 1931-7-29 691 Butte Jonesville. 1550 Comment
  POM193376  Sambucus microbotrys E. B. Copeland 1930-7-12 480 Butte Above Jonesville, along north brow of high ridge 2100 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
  SEINET5735621 Image available Sanguisorba minor Lowell Ahart 1985-1 4958 Butte E branch of Potter Ravine, ca. 2.25 mi N of Oroville Dam.; Oroville Dam 350 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
  CHSC38745  Sanicula bipinnatifida Vernon Oswald 1983-2-19 90 Butte Upper Bidwell Park, Chico, on the n edge of Upper Park Rd. near Parking Area P (2.0 mi e of the power lines). 207 Comment
  UC217478  Sanicula bipinnatifida H. M. Hall 1917-5-13 10301 Butte Paradise Comment
  CHSC38746  Sanicula crassicaulis Vernon Oswald 1983-3-7 134 Butte Upper Bidwell Park, Chico, on the s side of Chico Creek ca 300 ft e of the Golf Course. 91 Comment
  RSA754582  Sanicula crassicaulis L. Ahart 2009-4-22 15566 Butte W side of Guardians Trail, about 100 yards N of Pine Trail, Upper Bidwell Park, W of the intersection of Highway 32 and Ten Mile House Road, about 10 miles NE of Chico. 382 Comment
  SEINET10454659  Sanicula crassicaulis Mary Susan Taylor 1980-4-18 Taylor 2514 Butte W side of Humbug Road, ca. 1 mi S of Nimshew. With J.D. Jokerst. 610 Comment
  UC398939  Sanicula tuberosa E. B. Copeland 1929-7-20 389 Butte Jonesville 1550 Comment
  SEINET10454587  Sanicula tuberosa Mary Susan Taylor 1981-3-16 Taylor 3414 A 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
  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
  CHSC102736  Saponaria officinalis Lowell Ahart 2009-7-9 16018 Butte On the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 1/4 mile west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 203 Comment
  SEINET10838424  Saxifraga californica Mary Susan Taylor 1975-3-10 Taylor 416 Butte Honey Run Covered Bridge, along Butte Creek, from bridge, on bluffs (S side) down to creek and along creek, returning to bridge; ca. 8 mi E of Chico. Riparian Woodland and Foothill Woodland. 152 Comment
  UC398919  Saxifraga oregana E. B. Copeland 1929-7-20 369 Butte Jonesville 1550 Comment
  CHSC25  Sceptridium multifidum Mr. Wheelock 1943-11-1 Butte Above Stirling. 1158 Comment
  CAS-BOT-BC283623  Schedonorus pratensis Lowell Ahart 1982-4-29 3399 Butte Along side of the dirt road, W of the Gray Lodge Headquarters ca 0.25 mile, Gray Lodge, ca 12 miles SW of Gridley 35 Comment
  CAS-BOT-BC111649  Schoenoplectus mucronatus Lowell Ahart 1980-9-8 2592 Butte Peter Ahart Ranch, Honcut 15 Comment
  CAS-BOT-BC111650  Schoenoplectus mucronatus Lowell Ahart 1978-7-22 1848 Butte On SE corner of Richvale Est Rd and Erickson Rd. Richvale, in ricefield. 30 Comment
  CAS-BOT-BC111832  Schoenoplectus tabernaemontani John Thomas Howell 1961-9-22 36724 Butte Bank of Feather River, Oroville. 53 Comment
  CHSC45137  Scirpus congdonii Vernon Oswald; Lowell Ahart 1987-7-1 3083 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. At the e end of the large lake. 1935 Comment
  UC1100919  Scirpus maritimus Herbert L. Mason, Verne Grant 1946-8-15 13046 Butte Greylodge Game Refuge near caretaker's house; Butte Sink, Greylodge Game Refuge Comment
  CHSC45117  Scirpus microcarpus Vernon Oswald 1987-5-25 2923 Butte Butte Creek Reserve on the se side of Butte Creek ne of Hwy 99, downstream from the dam for the Durham Mutual Ditch. 68 Comment
  CAS-BOT-BC239955  Scribneria bolanderi Lowell Ahart 1989-5-23 6263 Butte Along Swedes Flat Road, about 1 mile east of the Oroville Bangor Highway, north of Bangor 426 Comment
  CHSC19637  Scribneria bolanderi J. Wheeler 1968-4-19 326 Butte W side of Cherokee Rd. ca. 0.75 mi s of Oregon City Rd., Table Mountain. 548 Comment
  CHSC33588  Scutellaria tuberosa M. S. Taylor 1981-4-28 3565 Butte N side of rd 23N28.2 in loop of the rd, ca. 1.2 mi w of Chino Creek, ca. 4 air mi e of Jarbo Gap on Hwy 70. ca. 23 air mi nw of Oroville. 929 Comment
  CHSC61213  Scutellaria tuberosa Vernon H. Oswald; Lowell Ahart 1993-3-24 5240 Butte E side of Dry Creek Canyon N of the historical site of Pentz, on the east side of a secondary drainage entering Dry Creek 2 mi. N of Pentz Rd. 274 Comment
  SEINET10499233  Scutellaria tuberosa Mary Susan Taylor 1981-4-28 Taylor 3565 Butte T22N R5E nw/sw sec 21. Berry Creek quad. N side of Rd 23N28.2, in loop of the rd, ca. 1.2 mi W of Chino Creek, ca. 4 air mi E of Jarbo Gap, ca. 23 air mi NW of Oroville. On decomposed granite; 3050 ft. 930 Comment
  CAS-BOT-BC415022  Sedella pumila A. A. Heller 1914-4-27 11329 Butte Chico-Oroville road 6 miles from Chico Comment
  HSC32418  Sedella pumila Kitsy Kelly 1974-4-20 13 Butte 300 yds. S of the intersection of Pentz and Clark Rds. 61 Comment
  CHSC116966  Sedum spathulifolium Matthew Forster 2013-4-25 Butte Along 14 Mile House Rd. 472 Comment
  SEINET11718084  Selaginella hansenii R. E. Alumbaugh 1984-1 13 Butte 8.3 mi E of Chico, 6.2 mi E of Rt. 99 and ca 350 yards N of Skyway 387 Comment
  CHSC44624  Selaginella wallacei Vernon Oswald 1984-4-9 1140 Butte Feather Falls Trail, near the overlook at the falls. 609 Comment
  CAS-BOT-BC363240  Senecio M. S. Taylor 1976-5-3 1100 Butte Ca. 2 ft e of Bald Rock Rd, ca. 50 ft n of jct of Oroville-Quincy Hwy & Bald Rock Rd, ca. 13 mi ne of Oroville 914 Comment
  SEINET10904906  Senecio eurycephalus var. lewisrosei Mary Susan Taylor 1978-5-6 Taylor 1582 Butte Just N of Magalia, in large serpentine area along the Skyway. 610 Comment
  NY233356  Senecio lewisrosei L. S. Rose 1939-6-7 39247 Butte North Fork of Feather River, 3 miles south of Pulga 609.6 Comment
  JEPS127028  Senecio sylvaticus Lowell Ahart 2016-6-4 20939 Butte On the east side of Ponderosa Way, about 1 mile (air) northwest of Sunset Hill, about 2 1/8 miles (air) northwest of Forbestown. Comment
  CHSC105813  Senecio triangularis Lowell Ahart 2010-9-21 17206 Butte Open meadow like area in red fir forest, about 70 yards east of the poor dirt road, about 80 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1917 Comment
  CHSC27967  Senecio triangularis M. S. Taylor 1978-7-19 1743 Butte Cherry Hill Campground, on s side of Old Humboldt Rd, ca. 2 mi sw of Jonesville. 1524 Comment
  CHSC61298  Senecio triangularis Lowell Ahart 1993-8-8 7148 Butte On the bottom of a stream, about 1/2 mile north-west of Lewis Flat, about 3/4 mile north-west of Sly Creek Dam. 1097 Comment
  SEINET10473958  Senecio triangularis Mary Susan Taylor 1978-7-19 Taylor 1743 Butte Cherry Hill Campground, on S side of Old Humboldt Road, ca. 2 mi SW of Jonesville. 1524 Comment
  CHSC113358  Senecio vulgaris Lowell Ahart 2014-4-25 19394 Butte Sides of a cleaned ditch, on the west side of Richvale South Highway, south of the intersection of Richvale West Road and Richvale South Highway, Richvale. 30 Comment
  CHSC43289  Setaria gracilis Lowell Ahart 1987-9-24 5899 Butte On a gravel bar along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC6147  Setaria gracilis E. Parreno 1968-5-1 81 Butte Front lawn of house on nw corner of Ivy and W 2nd Sts., Chico. 59 Comment
  CAS-BOT-BC243563  Setaria parviflora M. S. Taylor 1977-11-10 1509 Butte Irrigation ditch on S side of Crauch Road, ca. 300 ft. W of its jct. with Lone Pine Ave. ca. 4 mi S of Chico 30 Comment
  CDA2440  Setaria parviflora L. Ahart 2000-5-17 8365 Butte About 1/10 mile north of the Richvale Highway, about 1/2 mile east of Highway 99, about 7 1/2 miles (air) west of Oroville. On the south margin of Thermalito Afterbay, on the north side of the poor dirt road. Comment
  CAS-BOT-BC240121  Setaria pumila John Thomas Howell 1961-9-22 36735 Butte Bank of Feather River, Oroville 53 Comment
  UCD92705  Setaria pumila Beecher Crampton 1957-9-17 4617 Butte Biggs Rice Exper. Station, 5 miles northwest of Biggs. Comment
  CDA2456  Setaria viridis L. Ahart 2006-9-11 13309 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. Comment
  JEPS110304  Setaria viridis Lowell Ahart 2006-9-11 13309 Butte South edge of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville 431 Comment
  CHSC92545  Sherardia arvensis L. P. Janeway 2005-3-10 8350 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  CHSC90227  Sidalcea calycosa Michael J. McNairn 1989-4-17 5 Butte Ca. 100 yds. ne of jct. Lupin Ave. and Ceres Ave. ne Chico. 76 Comment
  SEINET10937539  Sidalcea calycosa Mary Susan Taylor 1975-10-4 Taylor 956 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
  CHSC33518  Sidalcea gigantea R. A. Schlising; R. Banchero, K. Tarp 1981-7-11 4140 Butte NE part of county, E of Fork of Feather River and NE of Coyote Gap. On Four Trees Road. 1447 Comment
  CHSC37281  Sidalcea gigantea M. S. Taylor 1982-8-16 4996 Butte At seep and creek crossing road to Bald Mt, ca. 1/4 mi sw of Bald Mt, ca. 3 mi ne of Stirling City. 1645 Comment
  POM61856  Sidalcea hartwegii A. A. Heller, H. E. Brown 1902-5-9 5512 Butte Berry Canyon (near Clear Creek) from type region Comment
  SEINET11987372  Sidalcea hartwegii Unknown 1974-1 16 Butte Skyway Rd, E ca 2 mi from connection with Hwy 99 61 Comment
  UCSB63716  Sidalcea hartwegii Bufton, Gail 1990-4-17 Butte Ca. 50 m S of Butte Creek and 0.3 km w of Covered Bridge, 10.2 km ese of Chico 120 Comment
  UCD116578  Sidalcea hirsuta R. N. Raynor; H. A. Hannesson 1941-5-9 s.n. Butte 4 miles west of Oroville. Comment
  JEPS104599  Sidalcea malviflora Lowell Ahart 1993-10-3 7269 Butte W branch of Wildcat Creek, about 2 mi NE of Coyote Gap 1402 Comment
  CHSC34951  Sidalcea oregana subsp. spicata R. A. Schlising; R. Banchero 1980-7-14 3900 Butte N end of Snag Lake in north of county. 1731 Comment
  CHSC94022  Sidalcea oregana subsp. spicata R. D. Fischer 2005-9-5 668 Butte Location about 4 road miles east of Jonesville adjacent to county road 26N11, ca. 1 mile north of Humboldt Road. Plants growing along dry stream channel connecting to Scotts John Creek in an area of mixed pine and fir forest. 1737 Comment
  POM219179  Sidalcea oregana subsp. spicata H. F. Copeland 334 Butte Jonesville. 1524 Comment
  CHSC76948  Sidalcea robusta Ida Ryan 1893-5-1 Butte Little Chico Creek. Comment
  SEINET9015716  Sidalcea robusta A. A. Heller, H. E. Brown 1902-5-8 5496 Butte Berry Canyon, near Clear Creek. Comment
  CHSC39355  Silene antirrhina Lowell Ahart 1983-7-29 4243 Butte Found along the edge of the dirt road, about 1 mile east of Milsap Bar, about 25 miles north-east of Oroville. 750 Comment
  CAS-BOT-BC174846  Silene bernardina R. A. Schlising 1982-8-1 4362 Butte N part of county e of Inskip and near Jones Meadow 1734 Comment
  UC1609334  Silene bernardina Lowell Ahart 1993-7-29 7113 Butte about 2 mi e Bald Mountain (about 6 air mi ne of Stirling City); e of Bald Mountain, ne of Stirling City 1524 Comment
  CHSC101677  Silene laciniata subsp. californica Lowell Ahart 2009-4-26 15624 Butte South of a small drainage, about 120 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles norhteast of Chico. 286 Comment
  CHSC118500  Silene laciniata subsp. californica L. P. Janeway 2016-5-9 11955 Butte Northern High Sierra Nevada. Plumas National Forest; upper north-facing slope above the South fork Feather River arm of Lake Oroville, 0.4 km northwest of the junction of Ponderosa Way and Road 19N19. 701 Comment
  CHSC2447  Silene laciniata subsp. californica R. Carter 1965-7-6 277 Butte Found 1.4 mi. N of Mountain House on Oroville-Quincy Rd., on E bank above road. 914 Comment
  UCD98960  Silene laciniata subsp. californica S. Boswell 1974-4-29 166 Butte 3 feet south of Honey Run Road and 1.5 miles east of Honey Run Covered Bridge. 152 Comment
  UCD99006  Silene laciniata subsp. californica Frank Polach 1967-4-22 15 Butte 1/2 mile from railroad, Feather Falls. 914 Comment
  CAS-BOT-BC389290  Silene lemmonii Lowell Ahart 1983-5-28 4018 Butte Along the trail to Feather Falls, near the over-look, about 5 1/2 miles north of the town of Feather Falls 600 Comment
  SEINET10537587  Silene lemmonii Mary Susan Taylor 1981-3-24 Taylor 3436 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
  SEINET11931357  Silene lemmonii Unknown 1977-1 14 Butte 3 km SW of Butte-Plumas co. line, 22 km NW of Paradise 490 Comment
  CAS-BOT-BC364793  Silybum marianum A. A. Heller 1923-10-13 13831 Butte At Chico Comment
  CHSC42698  Sisymbrium altissimum Lowell Ahart 1987-5-6 5513 Butte Gravel bar along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 274 Comment
  JEPS115544  Sisymbrium officinale Lowell Ahart 2009-5-8 15656 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
  UC203873  Sisyrinchium A. A. Heller 1914-7-23 11606 Butte Chico Meadows, at base of n slope Chico Meadows; Sierra Nevada 1219 Comment
  SEINET4171045  Sisyrinchium bellum A. A. Heller 1938-7-20 Butte Snag Lake, 7 mi. E of Chaparral. 2134 Comment
  UC119654  Smilacina stellata Mrs. R. M. Austin 14 Butte Little Chico Canyon Comment
  JEPS115053  Solanum americanum Lowell Ahart 2007-11-3 14573 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
  CHSC45723  Solanum parishii Cathy Young 1988-4-24 17 Butte Ca. 5.5 mi ne of Chico and 50 yds se of Highway 32. 256 Comment
  NY821149  Solanum parishii E. B. Copeland 1930-7-27 453 Butte Jonesville Comment
  POM193439  Solanum umbelliferum E. B. Copeland 1930-7-27 s.n. Butte Jonesville. 1600 Comment
  UC104231  Solanum umbelliferum Mrs. R. M. Austin May 1896 140 Butte Little Chico Creek Comment
  JEPS94143  Soliva sessilis Lowell Ahart 1998-6-9 8005 Butte ca. 7 mi. (air) n. Oroville (in tracks of dirt rd. ca. 5.8 mi. n.w. of the lone oak tree, n.w. of the cow chute along Cherokee Rd., North Table Mt.); North Table Mt. 396 Comment
  CHSC107250  Sonchus oleraceus Lowell Ahart 2011-6-3 17360 -A Butte Wood chipped planter area between Bidwell Mansion parking area and Gateway Science Museum, Chico. 60 Comment
  CHSC111368  Sonchus oleraceus Lowell Ahart 2012-5-14 18061 Butte Planted area between sidewalk and Vallombrosa Avenue, west of Manzanita Avenue, just west of the bridge across Big Chico Creek, Lower Bidwell Park, Chico. 79 Comment
  CHSC100941  Sorbus scopulina var. cascadensis R. A. Schlising; J. D. Jokerst 1982-8-31 4380 Butte Several miles east of the village of Butte Meadows; roadside bank above Butte Creek. 1524 Comment
  CHSC27290  Sorghum halepense P. Moyer 1972-6-5 212 Butte CSUC campus. 50 ft. from Gus Manolis Bridge, s side of Chico Ck. 60 Comment
  CHSC30281  Sorghum halepense M. S. Taylor 1979-10-28 2203 Butte Butte County line at Hwy 70, between boundary and Arch Rock tunnel. 487 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
  CHSC38522  Spartium junceum Vernon Oswald 1983-5-4 424 Butte Upper Bidwell Park, Chico, 100 ft w of the parking lot at Day Camp. 91 Comment
  SEINET10454595  Sphenosciadium capitellatum Mary Susan Taylor 1978-7-18 Taylor 1724 Butte On N side of Butte Creek, ca. 1/8 mi W of Road Island Junction, at junction of Butte Creek and Old Humboldt Road, ca. 1 mi W of Cherry Hill Campground; Yellow Pine Forest. 1524 Comment
  UC2026894  Spiraea Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-4-16 17868 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
  CHSC45808  Spiraea densiflora subsp. splendens L. P. Janeway; R. A. Schlising 1988-7-22 3045 A Butte Near the saddle between Coon Hollow and Chips Cr. 1889 Comment
  CAS-BOT-BC147949  Spiraea douglasii A. A. Heller 1914-7-23 11617 Butte In Chico Meadows 1219 Comment
  CAS-BOT-BC149654  Spiraea douglasii A. A. Heller 1914-7-23 11617 Butte In Chico Meadows 1219 Comment
  CHSC39530  Spiranthes porrifolia Lowell Ahart 1983-6-12 4045 Butte About 1 mile south of Crystal Hill, near Oregon Gulch, near Lake Oroville, about 7 miles south-west of Feather Falls. 425 Comment
  CHSC59058  Sporobolus cryptandrus Lowell Ahart 1992-7-23 6834 Butte Along the edge of Oroville Chico Highway, at the intersection of Shippee Road and Openshaw Road. 60 Comment
  SEINET9320865  Stachys ajugoides var. ajugoides Unknown 1996-7-9 13166 Butte Plumas National Forest Comment
  CHSC44929  Stachys ajugoides var. rigida Lowell Ahart 1988-7-31 6153 Butte Around stream rounded boulders, on the east side of the West Branch of the Feather River, north of the bridge, about 4 road miles north of Stirling City. 914 Comment
  CHSC43644  Stachys pycnantha B. Castro 1987-8-25 205 Butte On gravel bars of Butte Ck ca 1/4 mi e of Hwy 99 crossing, ca 2.1 mi s of Skyway in Chico. 60 Comment
  CHSC52207  Stachys stricta L. P. Janeway 1988-6-26 2882 Butte SE rim of Coon Ridge, overlooking Nance Cyn; ca 0.6 mi NE of the power lines (high voltage). S-facing seep at the rim. 182 Comment
  CAS-BOT-BC181379  Stellaria calycantha V. Oswald; L. Ahart 1988-10-6 3706 Butte Meadow near the headwaters of Big Kimshew Creek, ca. 1.5 mi (air) ne of Jones Meadow 1889 Comment
  CHSC11852  Stellaria longifolia E. B. Copeland 1931-1-1 638 Butte Jonesville. In meadows. 1500 Comment
Read comments
May 18 2006
  UC135756  Stellaria media Mrs. R. M. Austin May 1896 293 Butte Chico plains; Chico Comment
  CHSC29990  Stellaria nitens L. Ahart 1980-3-26 Butte E of the cemetery, ca. 1/2 mi e and 1/4 mi s of Hurleton. 600 Comment
  CHSC39044  Stellaria obtusa R. A. Schlising 1983-8-27 4452 Butte N part of county in Coon Hollow, N of Philbrook Reservoir. In streambed. Comment
  CHSC48280  Stellaria obtusa Vernon Oswald 1987-6-9 2975 Butte Ca. 3 mi ne of Jonesville on the road paralleling Scotts John Creek, 2 mi n of the road connecting Humboldt and Humbug roads. Near the creek. 1828 Comment
  CHSC58904  Stellaria obtusa Lowell Ahart 1992-7-21 6817 Butte Along a small wash and in meadows, north-west of a snow lake, on the south side of Coon Hollow, about 2 (air) miles north-east of Philbrook Reservoir. 1737 Comment
  CHSC46827  Stellaria umbellata R. A. Schlising; L. P. Janeway 1988-7-16 4606 Butte N part of county, S of Humbug Summit, at upper reaches of Willow Creek; meadow edge. 1950 Comment
  CDA35781  Stephanomeria elata J. R. Keck Jr., Riley 1995-8-17 PDR# 816608 Butte Along Clark Road near Paradise. 0 Comment
  CHSC61300  Stephanomeria lactucina Lowell Ahart 1993-7-29 7131 Butte On the west side of the dirt road to the Snow Mine, about 2 1/2 miles east of Bald Mountain, about 6 1/2 miles north-east of Stirling City. 1463 Comment
  UC1609219  Stephanomeria lactucina Lowell Ahart 1993-7-22 7071 Butte w side of dirt road about 1/4 mi nw Camp 18 (about 5 air mi ne of Feather Falls) 1219 Comment
  CHSC51360  Stephanomeria virgata subsp. pleurocarpa Vernon Oswald 1990-9-4 4445 Butte Feather Falls Trail on the approach to the overlook. 609 Comment
  UCSB63727  Streptanthus diversifolius Ramsey, Ellen 1986-4-1 Butte N end of Table Mountain ca. 400 yds. W of Table Mountain Cherokee Road ca. 6 mi. N of Oroville 243 Comment
  CHSC54298  Streptanthus polygaloides Vernon H. Oswald; Lowell Ahart 1991-6-5 4648 Butte Dirt road to Minie-Ha-Ha Mine located on Big Chico Creek, on the west side of Hwy 32 ca. 1.5 miles (air) northwest of Platte Mtn Lookout, between Forest Ranch and Lomo. 701 Comment
  CHSC92732  Streptanthus polygaloides L. P. Janeway 2005-6-26 8431 Butte Northern High Sierra Nevada. South-facing slope 0.4 km south of top of Batchelor Point, 0.6 km east of top of Rocky Ridge and Rim Road (Ponderosa Way). 945 Comment
  CHSC93454  Streptanthus polygaloides Lowell Ahart 2006-5-10 12612 Butte Road cut bank, on the north side of the poor dirt road, Bardees Bar Road, about 100 yards north of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 1/2 miles (air) southwest of Pulga. 354 Comment
  JEPS25036  Streptanthus polygaloides Lincoln Constance 1941-5-28 2826 Butte Magalia Sierra Nevada foothills, South Branch of the Feather River 487 Comment
  UC1176843  Streptanthus polygaloides Lewis S. Rose 1955-6-14 55094 Butte open slopes Magalia 731 Comment
  CAS-BOT-BC87443  Streptanthus polygaloides Walter S. Lennon 1974-1-1 s.n. Butte Sierra Nevada. Near Pulga. Comment
  CDA25189  Streptanthus tortuosus var. suffrutescens L. Ahart 1998-6-3 7968 Butte About 1/4 mile north of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 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
  SEINET10475187  Stylocline filaginea Lowell Ahart, James D. Jokerst 1985-3-24 Ahart 4854 Butte Serpentine Point, west of Yankee Hill. Comment
  UC1564762  Subularia aquatica var. americana V. Oswald and L. Ahart 1989-8-22 3953 Butte 4 air mi se of Jonesville (Summit Lake on the n slope of Snow Mountain); Snow Mountain, Summit Lake 1889 Comment
  CHSC23534  Symphoricarpos albus var. laevigatus M. S. Taylor 1976-3-9 1020 Butte Around Burton's Mesa, ca. 500 yds N of the Skyway, ca. 13 mi E of Chico. 457 Comment
  LA204590  Symphoricarpos mollis E. B. Copeland; 1930-7-7 479 Butte Jonesville 1600.0 Comment
  CAS-BOT-BC97690  Symphyotrichum chilense H. E. Brown 1896-9-15 80 Butte near Clear Creek 53 Comment
  CHSC69668  Symphyotrichum chilense Vernon H. Oswald 1987-5-6 2376 Butte Butte Creek Reserve e of Hwy 99 between Butte Creek and Durham Mutual Ditch. 67 Comment
  CHSC113496  Symphyotrichum spathulatum var. spathulatum Lowell Ahart 2014-7-16 19690 Butte Northeast of a large wet meadow (some bog), about 60 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC116325  Symphyotrichum subulatum var. parviflorum Lowell Ahart 2015-10-16 20553 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
  UCD136687  Symphyotrichum subulatum var. parviflorum E. M. Johnston 1915-1 s.n. Butte Biggs. Comment
  CHSC97406  Tanacetum parthenium Robert Fischer 2006-6-27 1025 Butte Paradise. Sierra Nevada foothills, upper Paradise Pines, off Nimshew Road. 853 Comment
  UCD142991  Tanacetum vulgare M. S. Taylor 1982-8-16 4992 Butte south end of Stirling City, along both sides of the Skyway. 1036 Comment
  CHSC116982  Tauschia kelloggii Lowell Ahart 2016-6-4 20929 Butte On the west side of Ponderosa Way, about 1 mile (air) northwest of Sunset Hill, about 2 1/8 miles (air) northwest of Forbestown. 732 Comment
  CHSC37540  Tauschia kelloggii J. D. Jokerst 1982-5-16 1572 Butte Ponderosa Way ca 1/2 mile N of its junction w/ lower Forbestown Rd. 731 Comment
  SEINET10906782  Tauschia kelloggii Mary Susan Taylor 1981-5-15 Taylor 3754 Butte T22N R5E nw sec 29, Berry Creek quad. End of spur rd 22N84A, ridge SW of Stony Creek, ca. 2.5 air mi due E of Jarbo Gap on Feather River Hwy 70. Yellow Pine Forest; 3100 ft. 945 Comment
  CHSC42501  Taxus brevifolia Lowell Ahart 1987-5-22 5682 Butte Near a dirt road, about 1/8 mile north-east of Feather Falls. 1219 Comment
  CHSC25350  Tellima grandiflora Mark P. Hayes 1977-4-22 14 Butte Ca. .5 km sw of Heinz Crk., along small creek, ca. 200 m from its confluence and North Fork of Feather River. 450 Comment
  CHSC88651  Tellima grandiflora H. Gray 2003-5-14 Butte Plumas National Forest. 944 Comment
  CAS-BOT-BC392314  Thalictrum fendleri A. A. Heller 1914-8-8 1669 Butte At Jonesville 1524 Comment
  CHSC52195  Thalictrum fendleri var. polycarpum L. P. Janeway 1989-5-11 3232 Butte Along Deadwood Cr at jct of Concow and Jordan Hill Roads. 518 Comment
  CHSC52196  Thalictrum fendleri var. polycarpum L. P. Janeway 1989-5-11 3232 Butte Along Deadwood Cr at jct of Concow and Jordan Hill Roads. 518 Comment
  CAS-BOT-BC197364  Thinopyrum intermedium subsp. barbulatum M. S. Taylor 1978-7-21 1835 Butte In Big Bald Rock parking lot 997 Comment
  CHSC72  Thuja plicata M. Anthony 1962-3-14 Butte Arcadian St., Chico. 57 Comment
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Jul 25 2018
  CHSC90236  Thysanocarpus curvipes Jody Henderson 1989-3-22 2 Butte 200 yds n of Rock creek, Hwy 99 to Meridian Rd to Kilkare ln, 6 mi. n of Chico, 0.25 se of Kilkare ln. 72 Comment
  JEPS43467  Thysanocarpus curvipes Joan Danielson 1966-4-6 22 Butte Cherokee Road just past Oregon Gulch Road 609 Comment
  RSA0057584  Thysanocarpus curvipes Amos Arthur Heller 1938-4-17 15039 Butte Back of Salmon Hole on Chico Creek, east of Chico. Comment
  CHSC4647  Thysanocarpus curvipes var. curvipes R. Carter 1966-4-11 333 Butte Found ca. 1 mi. E of Bidwell Bar along R.R. tracks, just W of R.R. bridge over S Fork; at base of cliff along tracks. 152 Comment
  POM143758  Thysanocarpus curvipes var. curvipes Copeland 1903-4-10 3031 Butte Chico. Comment
  CHSC4648  Thysanocarpus curvipes var. elegans R. Carter 1966-4-11 334 Butte Found ca. 1 mi. E of Bidwell Bar along R.R. tracks, just W of R.R. bridge over S Fork. 152 Comment
  CAS-BOT-BC67298  Thysanocarpus radians A. A. Heller 1916-3-18 12281 Butte 8 miles north of Oroville. Comment
  CHSC10663  Thysanocarpus radians Lowell Ahart 1971-4-5 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC115339  Thysanocarpus radians Lowell Ahart 2015-4-11 20028 -A Butte Normal size plants, on dry rocky thin soil, near a gold mined area . 71 Comment
  HSC43090  Thysanocarpus radians Maralyn O'Meara 1974-4-20 288 Butte Cherokee-Table Mtn. Rd. 305 Comment
  SEINET12050273  Tofieldia glutinosa L. Ahart, Ahart, P. 1984-1 4758 Butte about 1/2 mi E of Bald Mountain, about 5 mi NE of Stirling City 1750 Comment
  UCR133586  Tofieldia glutinosa subsp. occidentalis H. F. Copeland 1928-8-21 894 Butte Jonesville, swamp near head of Willow Creek 1585 Comment
  JEPS110322  Tofieldia occidentalis subsp. occidentalis Lowell Ahart 2006-7-25 13067 Butte 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
  SFV10340  Torilis arvensis M. L. Vincent 1963-6-6 376 Butte Nelson Bar Road, 1 mile east of Pentz Road. 300 Comment
  CHSC42683  Torilis arvensis subsp. arvensis Vernon Oswald 1985-6-5 1809 Butte River Rd. 0.7 mi sw of its jct. with Chico River Rd. 36 Comment
  JEPS115501  Torilis arvensis subsp. arvensis Lowell Ahart 2009-6-12 15837 Butte 10 yards north of the Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove, Lower Bidwell Park, Chico 67 Comment
  CHSC101121  Torilis arvensis subsp. purpurea Lowell Ahart 2009-5-23 15725 Butte On the north side of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 311 Comment
  JEPS103298  Torilis nodosa Lowell Ahart 2002-5-7 9608 Butte High banks of a pond, at the beginning of a SE branch of Schirmer Ravine, ca 50 yards E of the pond on the E side of Cherokee Road, North Table Mountain, ca 4 miles (air) N of Oroville. 228 Comment
  CHSC34175  Torreyochloa pallida var. pauciflora L. Ahart 1981-9-15 3172 Butte Bottom of a swamp, where the road forks and crosses French Creek, ca. 1 mi w of Sly Creek Reservoir. 1300 Comment
  CHSC110257  Toxicoscordion paniculatum L. P. Janeway 2012-6-2 10836 Butte Northern High Sierra Nevada. Plumas National Forest; eastern slope of Bloomer Hill, 1.0 air km east of the top. 701 Comment
  CHSC112446  Toxicoscordion venenosum var. venenosum Lowell Ahart; Susan Kephart, Jim Kephart 2013-6-1 18721 Butte About 150 yards east of the intersection of Forbestown Road and Black Bart Road, about 3 1/4 miles (air) southwest of Forbestown. 737 Comment
  SEINET10474050  Tragopogon dubius Mary Susan Taylor 1981-5-15 Taylor 3751 Butte T22N R5E nw sec 29, Berry Creek quad. End of spur rd 22N84A, ridge SW of Stony Creek, ca. 2.5 air mi due E of Jarbo Gap on Feather River Hwy 70. Yellow Pine Forest; 3100 ft. 945 Comment
  CAS-BOT-BC518997  Triantha occidentalis subsp. occidentalis A. A. Heller 1914-8-7 11654 Butte Butte meadows 1219 Comment
  CAS-BOT-BC518998  Triantha occidentalis subsp. occidentalis E. B. Copeland 1928-7-24 349 Butte Jonesville 1550 Comment
  CHSC108166  Trichostema lanceolatum L. P. Janeway 2011-8-17 10656 Butte Northern High Sierra Nevada. Plumas National Forest; east slope of Bloomer Hill, 850m east-southeast of the top. Small flat at western end of the rock-garden-like opening in Ponderosa pine dominated mixed conifer forest. 721 Comment
  SEINET10499331  Trichostema lanceolatum Mary Susan Taylor 1980-8-15 Taylor 3254 Butte T21N R2E nw sec 36, Hamlin Canyon quad. Pentz vernal pool, 0.4 mi SE of jct of Pentz (Benum) Rd, and Hwy 99, ca. 10 mi S of Chico; Valley Grassland. With E. Pierce. 55