Search Results — 2000 specimen records retrieved (1523 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)
 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
 Records are made available under the CCH Data Use Terms.
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CHSC81795  Abutilon theophrasti Lowell Ahart 2001-11-2 9400 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  CAS-BOT-BC30407  Achillea millefolium Lowell Ahart 1979-6-25 s.n. Yuba 2 miles east of Challenge 700 Comment
  CHSC100745  Achnatherum lemmonii L. P. Janeway 2008-5-11 9364 Yuba Northern High Sierra Nevada. In the northwestern head of Slapjack Creek; along Road 19N34, 1.3 road km southeast of Challenge-La Porte Road; about 1.2 km south-southeast of Woodleaf. 940 Comment
  UCD50717  Achnatherum lemmonii Beecher Crampton 1957-6-5 4142 Yuba 1 mile east of Stanfield Hill. Comment
  CHSC44596  Achnatherum occidentale subsp. californicum Lowell Ahart 1979-6-25 1936 Yuba About 1 mile south of Challenge. 640 Comment
  JEPS100364  Achnatherum stillmanii Dean W. Taylor 2001-6-6 17770 Yuba Peterson Ridge (ca. 2 air mi SE of Strawberry Valley); along Forest Road 35 (20N35) about 0.8 miles northeast of the junction with Forest Road 04 (20N04), on the easterly facing canyon wall of Slate Creek 1158 Comment
  JEPS125984  Achnatherum stillmanii D. W. Taylor 2001-7-31 17852 Yuba Rock Creek canyon on the Yuba County line, ca 2 air miles SW of Union Hill. Comment
  CHSC97465  Achyrachaena mollis Lowell Ahart 2007-5-12 13767 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCD37846  Achyrachaena mollis Beecher Crampton 1962-4-24 6245 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CAS-BOT-BC29940  Achyrachaena mollis Gordon H. True 1964-4-17 1161 Yuba About 6.5 miles south of Smartville, on Beale A.F.B. road 144 Comment
  UCD128429  Achyrachaena mollis Barbara Yungert 1974-5-6 123 Yuba east side of Scott Lane, west of SC-19 project area, Sierra Foothill Station. Comment
  UCD104579  Acmispon R. Osborne 1987-9-24 s.n. Yuba H.H. Ovantero Ranch, Dist. 10. Comment
  SBBG3381  Acmispon americanus H. and M. Dearing 1938-6-20 2043 Yuba near Yuba City Comment
  UCD104099  Acmispon brachycarpus Barbara Yungert 1974-4-4 4 Yuba Along four wheel drive road, north of Yuba River, Sierra Foothill Field Station. Comment
  SBBG3418  Acmispon grandiflorus var. grandiflorus H. and M. Dearing 1939-5-7 Yuba Brownsville 762 Comment
  JEPS121744  Acmispon grandiflorus var. macranthus L. P. Janeway 2014-4-24 11233 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. Comment
  UCD104353  Acmispon parviflorus Barbara Yungert 1974-4-25 76 Yuba West of four wheel drive road, Jack-Ass Joe area, F-2 project area, Sierra Foothill Field Station. Comment
  JEPS112956  Adiantum aleuticum Dean W. Taylor 2001-6-18 17787 Yuba canyon of Slate Creek, along Forest Road 35 about 0.5 miles SE of the bridge over Slate Creek 1036 Comment
  CAS-BOT-BC9075  Aegilops triuncialis John Thomas Howell; Gordon H. True 1971-5-26 47613 Yuba About 8 miles east of Marysville 30 Comment
  UCR169016  Aegilops triuncialis David Charlton 2005-5-16 8007 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  CAS-BOT-BC295538  Agnorhiza bolanderi Alice Eastwood 1930-4-12 s.n. Yuba Near top of Texas Hill Comment
  CHSC84968  Agoseris grandiflora Lowell Ahart 2003-10-11 10621 Yuba Meadow, on the east side of a gravel road to the Rose Ranch, about 100 yards west of the paved road to Scales, about 1/2 mile south of the Rose Ranch, about 5 miles (air) northeast of Strawberry Valley, about 7 miles (air) southwest of La Porte. 1219 Comment
  CAS-BOT-BC22953  Agoseris heterophylla Gordon H. True 1963-4-17 1163 Yuba About 14 miles east of Marysville, on Marysville-Grass Valley Hwy 60 Comment
  SEINET5713145  Agoseris heterophylla Br Vance 1974-1 9 Yuba 3 air miles 20 degrees east of north from Station Headquarters, University of California Sierra Foothill Range Field Station.; UC Foothill Field Station 457 Comment
  UCD128615  Agoseris heterophylla Barbara Yungert 1974-4-25 83 Yuba along four wheel drive road, lower SC-14 project area, Sierra Foothill Field Station. Comment
  CHSC25494  Agrimonia gryposepala L. Ahart 1977-7-31 1507 Yuba Found growing on dry soil along the edge of a small stream, ca. 1 mi s of Challenge. 700 Comment
  CAS-BOT-BC451165  Agrimonia gryposepala Lowell Ahart 1977-7-31 s.n. Yuba Aount 1 mile south of Challenge 700 Comment
  SBBG121198  Agrimonia gryposepala L. Ahart 2007-8-7 14424 Yuba SE part of Hampshire Crk Meadow, ca. 50 yards E of the dirt rd, ca. 1 mi (air) E of Clipper Mills 1021 Comment
  CHSC97618  Agrostis avenacea Lowell Ahart 2007-5-14 13862 Yuba On dry bare red soil, on the bottom of a swale, about 250 yards west of the power tower, power tower is about 30 yards north of the Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS113693  Agrostis avenacea Lowell Ahart 2007-5-14 13862 Yuba On dry bare red soil, on the bottom of a swale, about 250 yards west of the power tower, power tower is about 30 yards north of the Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  POM266621  Agrostis avenacea J. C. Roos 1939-7-3 1518 Yuba Marysville. Comment
  UCD51766  Agrostis avenacea Beecher Crampton 1965-5-11 7323 Yuba 2.5 miles southwest Brown's Valley. Comment
  UCD51767  Agrostis avenacea Beecher Crampton 1964-10-22 7221 Yuba 3 miles east of Brown's Valley, Dry Creek. Comment
  RSA653942  Agrostis exarata Beecher Crampton 1966-6-14 7760 Yuba 1 mile east of Brownsville on La Porte road. 732 Comment
  UCD32902  Agrostis exarata Beecher Crampton 1965-6-17 7377 Yuba Yuba County, ca. 3/4 mile north Stanfield Hill, Willow Glen Creek. 396 Comment
  UCD52102  Agrostis exarata Beecher Crampton 1965-6-17 7377 Yuba 3/4 mile north of Stanfield Hill, Willon Glen Creek. 396 Comment
  UCD52130  Agrostis exarata Beecher Crampton 1957-6-5 4137 Yuba Stanfield Hill. Comment
  CHSC105843  Agrostis idahoensis Lowell Ahart 2010-7-27 16920 Yuba Meadow on the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. Along small streams in the meadow. 1219 Comment
  UCD52805  Agrostis idahoensis G. Douglas Barbe; J. T. Howell, T. C. Fuller 1981-6-22 3050 Yuba La Porte - Quincy Road 3.6 miles northeast of Strawberry Valley at the Plumas County line. 1280 Comment
  UCD53049  Agrostis microphylla Robert E. Preston 1995-5-10 867 Yuba N edge of Beale Air Force Base, 0.4 mi. e. of jct Smartsville Road and Doolittle Drive. 41 Comment
  CAS-BOT-BC138782  Agrostis scabra Lowell Ahart 1980-8-12 2575 Yuba Sierra Nevada. Along Slate Creek. 1250 Comment
  CHSC84452  Agrostis stolonifera Lowell Ahart 2003-7-6 10366 Yuba Near a meadow, east of the power line, about 50 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  JEPS104246  Agrostis stolonifera Lowell Ahart 2003-7-6 10366 Yuba Near a meadow, e of the power line, ca 50 yd nw of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  SEINET3450791  Agrostis stolonifera Unknown 2003-7-6 10366 Yuba Dobbins, Dobbins, about 5 air miles north Comment
  CHSC63205  Agrostis thurberiana Lowell Ahart 1994-6-27 7394 Yuba North of the dirt road that goes from La Porte Road to the Poverty Hill Mine (County Road), east of Schwartz Meadow, about 4 miles north-east of Strawberry Valley. 1219 Comment
  CHSC107312  Aira caryophyllea L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10372 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. 750 Comment
  SEINET3817926 Image available Aira caryophyllea George K. Helmkamp, E. A. Helmkamp 2011-4-10 17166 Yuba Sacramento Valley, Along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland (Wheatland 7.5' Q. 44 Comment
  SEINET5335997  Aira caryophyllea A. Tiehm 1975-1 631 Yuba U.C. Sierra 198 Comment
  UCD55732  Aira caryophyllea Beecher Crampton 1957-6-5 4128 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  UCD55763  Aira caryophyllea Barbara Yungert 1974-4-25 G- 1 Yuba Sierra Foothill Field Station, Lower Scott project area, along four wheel drive road. Comment
  UCR231332  Aira caryophyllea George K. Helmkamp, E. A. Helmkamp 2011-5-6 17185 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.3 mile north of the junction with Hokan Lane, vicinity of Camp Far West Reservoir 105 Comment
  UCR234208  Aira caryophyllea George K. Helmkamp, E. A. Helmkamp 2011-4-10 17166 Yuba Sacramento Valley, along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland 44 Comment
  CAS-BOT-BC138414  Aira caryophyllea var. capillaris Beecher Crampton 1957-6-5 4153 Yuba Foothill flat. 1.3 mile east Oregon House Store. Comment
  CAS-BOT-BC138415  Aira caryophyllea var. capillaris Beecher Crampton 1957-6-5 4153 Yuba Foothill flat. 1.3 mile east of Oregon House Store. Comment
  UCD55787  Aira caryophyllea var. capillaris Beecher Crampton 1965-5-11 7317 Yuba 2.5 miles southwest of Brown's Valley. Comment
  CAS-BOT-BC138349  Aira caryophyllea var. caryophyllea Gordon H. True 1963-4-17 1177 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Highway. 30 Comment
  UCD32892  Aira elegantissima Beecher Crampton 1965-5-11 7317 Yuba Yuba County, 2.5 miles S.W. Brown Valley. Comment
  JEPS104656  Alisma lanceolatum Lowell Ahart 2003-7-17 10415 Yuba On the bottom of a small stream, on the w side of Smartville Rd, ca 2 mi n of the intersection of Waldo Rd and Smartville Rd, ca 6 mi (air) south of Smartville. 129 Comment
  SEINET3449084  Alisma lanceolatum Unknown 2003-7-17 10415 Yuba Smartville, Smartville, about 6 air miles south, west side of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road 120 Comment
  UCR178423  Allium L. K. Mann 1957-4-19 s.n. Yuba Northern Sierra Nevada Mtns, at east edge of top of dam [New Bullards Bar Dam] across North Fork Yuba River, between Dobbins and North San Juan 610 Comment
  CAS-BOT-BC131978  Allium Gordon H. True 1963-4-17 1169 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Hwy. 30 Comment
  JEPS13879  Allium amplectens Rimo Bacigalupi with L. R. Heckard, R. D. Sanderson, and G. Bacigalupi 1952-6-20 3758 Yuba 1.5 mi due s Brownsville (along road from Brownsville to Oregon House, just n of Washington Mill) 609 Comment
  UCR266162  Allium amplectens L. K. Mann 1957-4-19 s.n. Yuba No. Sierra Nevada Foothills, between Browns Valley and Dobbins, 0.2 mi west of Oregon House Post Office 466 Comment
  CAS-BOT-BC462250  Allium amplectens Lewis S. Rose 1940-5-28 40403 Yuba Oregon House 457 Comment
  CAS-BOT-BC462394  Allium amplectens Lillian S. Mott 1965-4-21 6547 Yuba Highway 20 about 10 miles east of Marysville. 518 Comment
  CHSC10818  Allium membranaceum Lowell Ahart 1967-5-15 Yuba Near Bullard bar. 914 Comment
  UC1299738  Allium membranaceum Freed W. Hoffman 1949-5-14 2809 Yuba at e abutment of dam, Bullards Bar Dam and Reservoir Bullards Bar Dam and Reservoir Comment
  CAS-BOT-BC472979  Allium membranaceum Barbara T. Keller 1975-6-10 1519 Yuba Willow Glen Road from Stanfield Hill to Brownsville, 11.5 miles north of junction of Willow Glen Road and Marysville Road. Comment
  SEINET7072985  Allium peninsulare A. G. Vestal 1963-5-30 s.n. Yuba Yuba River just past the bridge on the road to Timbuctoo. Coordinate datum WGS84/NAD83. (39? deg. 13' 10" North Latitude, -121? deg. 20' 3" West Longitude. UTM Zone 10, 643799mE, 4342242mN. Coordinate datum: NAD27). Comment
  UCD37893  Allium peninsulare Beecher Crampton 1962-4-24 6319 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD39042  Allium peninsulare Beecher Crampton 1962-4-24 6319 Yuba 5 miles east Brown's Valley, Sierra Foothill Range Field Station. Comment
  SJSU7115  Allium peninsulare J. B. Willis 1969-4-27 73 Yuba S bank Yuba River on old stage rd to Timbuctoo, just off State Hghwy 20, 18 mi E of Marysville Comment
  UCD138600  Allium peninsulare Barbara Yungert 1974-4-18 65 Yuba north of Yuba River, Sierra Foothill Field Station. Comment
  UCD23433  Allium peninsulare Gordon Murray 1977-5-15 1 Yuba Aromatic onion odor. Creek side, shady slope. Jed Smith Creek off Scott Forbes Rd. in Browns Valley. 22 miles east of Marysville on Hwy 20. 304 Comment
  CAS-BOT-BC132066  Allium peninsulare var. peninsulare Gordon H. True 1963-5-9 1227 Yuba Just east of Parks Bar bridge, South Yuba River about 1 mile west of Timbuctoo 79 Comment
  CHSC69157  Allium sanbornii var. sanbornii Lowell Ahart 1997-8-7 7835 A Yuba Northwest of the bridge across Indian Creek, about 3 miles (air) east of Challenge. 762 Comment
  NY247881  Allium sanbornii var. sanbornii A. W. Wood 1866-1 s.n. Yuba Near Fosters Bar. S.S. Sauborn Esq. Comment
  UC1609386  Allium sanbornii var. sanbornii Lowell Ahart 1993-8-8 7155 Yuba about 200 yards w Brownsville Grange (on s side of La Porte Road, about 1 mi sw of La Porte Road and Willow Glen Road intersection); La Porte Road 609 Comment
  UCD143723  Allium serra L. K. Mann 1958-4-20 s.n. Yuba bulbs 3 miles north of Rumsey, Califronia on road 16 toward Clear Lake. Mostly on right side going north. Comment
  CHSC87306  Allotropa virgata Lowell Ahart 2004-4-27 10758 Yuba West of the water ditch, about 150 yards northwest of where the drainage crosses the road, about 1/2 mile (air) southeast of Woodleaf. 983 Comment
  CHSC97658  Alopecurus saccatus Lowell Ahart 2007-5-12 13821 Yuba Bottom of a vernal pool, about 100 feet northeast of a culvert, about 80 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCD32893  Alopecurus saccatus Beecher Crampton 1965-5-11 7324 Yuba Yuba County, 2.5 miles S.W. Brown Valley. Comment
  CHSC97706  Amaranthus californicus Lowell Ahart 2007-11-8 14589 Yuba North of the waterway between the headland and the large island, on the strand of Camp Far West Reservoir, about 1/4 mile south of Rock Creek, about 1/2 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  JEPS113489  Amaranthus hybridus Lowell Ahart 2007-6-30 14239 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  JEPS113509  Amaranthus hybridus Lowell Ahart 2007-5-14 13841 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 20 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  HSC4372  Amaranthus hybridus T. F. Newman 1965-10-9 6550 Yuba Carnes Ranch, 10 mi. N of Marysville Comment
  RSA749527  Amaranthus powellii George K. Helmkamp, E. Helmkamp 2008-10-6 14209 Yuba Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  UCR201766  Amaranthus powellii George K. Helmkamp, E. A. Helmkamp 2008-10-6 14209 Yuba Sacramento Valley, Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  CHSC97443  Amaranthus retroflexus Lowell Ahart 2007-5-14 13840 Yuba Dry red bare soil, east of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  CHSC81746  Ambrosia psilostachya Lowell Ahart 2001-11-2 9410 Yuba Camp Far West Reservoir, about 1/8 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 91 Comment
  CHSC83019  Ambrosia psilostachya Lowell Ahart 2002-10-10 9976 Yuba On the west side of the dirt road, east of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20. 166 Comment
  JEPS102572  Ambrosia psilostachya Lowell Ahart 2001-11-2 9410 Yuba Camp Far West Reservoir, about 1/8 mile NE of the dam, about 9 miles (air) SE of Wheatland. 91 Comment
  UC1042419  Ambrosia psilostachya J. Thomas Howell 1951-8-21 28288 Yuba near Camptonville; Sierra Nevada 762 Comment
  CAS-BOT-BC55576  Ambrosia psilostachya John Thomas Howell 1951-8-21 28288 Yuba Near Comptonville 762 Comment
  RSA88085  Ambrosia psilostachya J. T. Howell 1951-8-21 28288 Yuba Near Camptonville 762 Comment
  CHSC116310  Ammannia coccinea Lowell Ahart 2015-11-19 20684 Yuba 100 yards or more north of the spillway area, below the high water line, west side of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  CHSC83058  Ammannia coccinea Lowell Ahart 2002-10-8 9944 Yuba On the edge of a pond, about 100 yards north of Long Ravine Road, about 300 yards southeast of the intersection of Camp Far West Road and Long Ravine Road there is a poor gate on the north side of the road, north of Camp Far West Reservoir. 121 Comment
  CHSC76283  Ammannia robusta Lowell Ahart 1999-9-17 8245 Yuba On the margins of a rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  JEPS94317  Amsinckia intermedia Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7725 Yuba about 17 mi ne of Marysville (on bank of Browns Valley Water Ditch, n of the poor dirt road, s of Dry Creek, about 1 1/4 mi e of Scott Forbes Road (Long Bar Road)); Browns Valley Water Ditch 198 Comment
  SEINET12479904  Amsinckia intermedia A. Tiehm 1975-1 648 Yuba U.C. Sierra Foothill Field station. 274 Comment
  UCR257539  Amsinckia intermedia George K. Helmkamp 2014-4-17 22757 Yuba Sierra Nevada Foothills, Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville 264 Comment
  SEINET11792840  Amsinckia intermedia C. Aarstad 1979-4-28 s.n. Yuba At junction of Rt. 20 and N for of Yuba in Browns Valley 183 Comment
  UCD119710  Amsinckia intermedia Barbara Yungert 1974-4-4 1 Yuba Along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UCD119711  Amsinckia intermedia Barbara Yungert 1974-4-14 33 Yuba Meathook project area, Sierra Foothill Field Station. Comment
  RSA0089945  Amsinckia menziesii var. menziesii L. Ahart 2007-4-17 13692 Yuba On the north side of the poor dirt fireguard, about 50 yards northwest of Marysville Road and the parking area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5.5 miles (air) northeast of Loma Rica. 293 Comment
  UCR231311  Amsinckia retrorsa George K. Helmkamp, E. A. Helmkamp 2011-5-6 17190 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.9 mile west of the junction at Camp Far West Reservoir 65 Comment
  CHSC97225  Anagallis arvensis Lowell Ahart 2007-6-22 14221 Yuba Near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC97636  Anagallis arvensis Lowell Ahart 2007-5-14 13850 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS113619  Anagallis arvensis Lowell Ahart 2007-5-14 13850 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  UCD117557  Anagallis arvensis Barbara Yungert 1974-4-25 88 Yuba SC-14 project area, Sierra Foothill Field Station. Comment
  CDA39674  Anagallis minima J. T. Howell & Gordon H. True 1967-6-13 3559 Yuba Camp Far West Reservoir on Bear River, east of Wheatland. Comment
  RSA10978  Andropogon glomeratus C. B. Wolf 1927-11-5 1436 Yuba Roadside swale, 8 mi. from Marysville on road to Browns Valley. Comment
  HSC8924  Andropogon virginicus T. F. Newman 1964-2-22 9 Yuba 10 miles N of Marysville on Alt. 40, Rameriz Rd. Comment
  UCD56085  Andropogon virginicus Beecher Crampton 1957-6-5 4113 Yuba Along State Hwy. 20, 7.5 miles east of Marysville. Comment
  CAS-BOT-BC137783  Andropogon virginicus var. virginicus Roxana S. Ferris 1927-11-5 6941 Yuba 7 miles from Brown Valley on Marysville Road. Comment
  CDA42983  Andropogon virginicus var. virginicus L. Ahart 2013-11-3 19307 Yuba On north side of Dry Creek, below the high water line of Collins Lake, about 300 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. Comment
  CHSC45502  Anemone oregana Lowell Ahart 1972-4-28 89 Yuba Near the West Branch Brushy Creek, about 10 miles by road east of Strawberry Valley. 1219 Comment
  SEINET5717834 Image available Anemone quinquefolia Andrea Smith 1972-1 7 Yuba Along Brandy Creek near the Pendola Ranch, about 5 miles west of Camptonville.; Camptonville 610 Comment
  CHSC69127  Angelica breweri Lowell Ahart 1997-8-7 7836 Yuba On east side of the dirt road, about 2 miles (air) southeast of Woodleaf, about 3 miles (air) northeast of Challenge. 853 Comment
  UCD128897  Anisocarpus madioides W. R. Powell 1968-5-24 1546 Yuba C. D. F. fire station, Brownsville. 649 Comment
  CHSC70780  Antennaria argentea B. Castro; L. Gehrung 1995-6-2 573 Yuba Ca 2 air mi SE of Strawberry Valley, 0.5 to 0.8 mi N of the N Fork Yuba River, on S-trending ridge to Weed Point. Along both sides of USFS Rd 20N81. 1021 Comment
  RSA795537  Anthemis cotula L. Ahart 2011-6-7 17373 Yuba Bottom of a depression at the base of cliffs, to the north is a huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 air miles northeast of Marysville. 66 Comment
  JEPS98605  Anthoxanthum odoratum Lowell Ahart 2000-6-19 8491 Yuba About 100 yards N of New York Flat Road, ca 11/4 miles (air) NE of Brownsville, ca 21/4 miles (air) W of Challenge. 731 Comment
  UCD33107  Anthoxanthum odoratum Beecher Crampton 1966-6-14 7746 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  HSC100824  Anthriscus caucalis Lowell Ahart 2011-6-7 17369 Yuba Just S of gravel bar along the Yuba River, ~150 yd. W of the S end of Parks Bar Bridge, 15 (air) mi. NE of Marysville. 66 Comment
  JEPS83335  Antirrhinum vexillocalyculatum subsp. intermedium David M. Thompson 1983-9-11 380 Yuba 0.4 mi n Hwy. 49 and middle of bridge over Middle Yuba River (near town of Log Cabin, just n of Nevada County line); Camptonville Quad. (7.5', 1969) 480 Comment
  CHSC90335  Aphanes occidentalis Lowell Ahart 2005-3-11 11598 Yuba On the west side of the poor dirt road, about 1/2 mile west of Marysville Road, about 1/4 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/4 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 344 Comment
  CHSC106050  Apocynum androsaemifolium Lowell Ahart 2010-7-27 16922 Yuba Disturbed area of a log landing, about 100 yards north of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. 1219 Comment
  CAS-BOT-BC392099  Aquilegia formosa Lowell Ahart 1979-6-25 s.n. Yuba 2 miles east of Challenge 700 Comment
  CHSC69130  Aralia californica Lowell Ahart 1997-8-7 7819 Yuba Bottom and sides of a small stream, a branch of Little Oregon Creek, on the east side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  JEPS94620  Aralia californica Lowell Ahart 1997-8-7 7819 Yuba Peterson Ridge Rd. about 3 air mi se Challenge (on bottom and sides of small stream, a branch of Little Oregon Creek, on e side of dirt road) 762 Comment
  CAS-BOT-BC171648  Aralia californica Lowell Ahart 1980-7-25 2483 Yuba Near Slate Creek, Sierra Nevada 1200 Comment
  CAS-BOT-BC128687  Arbutus menziesii Alice Eastwood 1918-4-7 6799 Yuba Camptonville Comment
  SD236272  Arbutus menziesii David Charlton 2005-5-16 8021 Yuba Sacramento Valley: Yuba Gold Field; just S of Yuba River; ca 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area ca. 2 mi by 1 mi. (Browns Valley 7.5'Q) 25 Comment
  UCD117489  Arbutus menziesii Kathleen Kehiler 1975-4-30 76 Yuba Along Oregon Hill Road between Bullards Bar Reservoir and Challenge. Comment
  UCR168799  Arbutus menziesii David Charlton 2005-5-16 8021 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  CAS-BOT-BC38552  Arctostaphylos mewukka subsp. truei Walter Knight; Irja Knight; Tiffany Knight 1988-7-24 6298 Yuba Kellogg Flat near Woodleaf. On La Porte Rd. 914 Comment
  CAS-BOT-BC46712  Arctostaphylos patula Alice Eastwood 1918-4-7 6797 Yuba Camptonville. Comment
  SEINET11990987  Arctostaphylos truei R. Raiche, Zadnik, K.; Roberts, W. 1983-1 30116 Yuba Knox Road, Challenge Experimental Forest Comment
  SEINET11995503  Arctostaphylos truei W. Knight, Knight, I.; Knight, T. 1988-1 6298 Yuba Kellogg Flat near Woodleaf, on La Porte Rd 914 Comment
  UCD52570  Arctostaphylos viscida B. F. Smith 1968-9-20 90 Yuba Gochette Ranch, 3 miles east of Challenge, Yuba County, California. 883 Comment
  CAS-BOT-BC48247  Arctostaphylos viscida subsp. viscida Alice Eastwood 1921-5-22 10599 Yuba Los Vergils Comment
  POM266630  Aristida oligantha J. C. Roos 1939-7-3 1517 Yuba plains near Marysville Comment
  UCD168078  Aristida oligantha James Neilson 1961-10-16 463 Yuba 1/2 mile west of Brown's Valley Rd. (Exact location unknown. Coordinates estimated by label maker.) Comment
  LA76973  Aristolochia californica C. B. Adams; 1930-10-13 1741 Yuba Small creek flowing into Yuba River on Browns Valley to Smartsville Road 152 Comment
  RSA1885  Aristolochia californica C. B. Wolf 1930-10-13 1001 Yuba On Browns Valley - Smartsville Rd. 152 Comment
  CDA24668  Armoracia rusticana A. Worledge 1944-1 Yuba 0 Comment
  CHSC84210  Arrhenatherum elatius Lowell Ahart 2003-7-6 10367 Yuba Near a meadow, east of the power line, about 50 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  UC1119535  Artemisia douglasiana N. French 1933-6-22 82 Yuba 2 mi w Dobbin; Smartsville Quadrangle Comment
  SEINET10580364  Asclepias cordifolia Carl B. Wolf 1937-5-13 Wolf s.n. 1937 Yuba Sierra Nevada foothills, 2.7 mi below Stanfield Hill on road to Brown's Valley 183 Comment
  SEINET12347215  Asclepias cordifolia F. H. Utech 1990-6-5 90 -860 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  UCD121288  Asclepias cordifolia Barbara Yungert 1974-5-6 124 Yuba South side of road, SC-13 project area, Sierra Foothill Field Station. Comment
  CDA39841  Asclepias fascicularis H. Crane 1932-4-2 s.n. Yuba Marysville. 0 Comment
  CAS-BOT-BC65897  Aspidotis densa Lowell Ahart 1980-8-12 2529 Yuba About 2 miles south-east of Woodleaf 800 Comment
  CAS-BOT-BC65898  Aspidotis densa W. R. Dudley s.n. Yuba Near South Yuba Comment
  CHSC62418  Aster radulinus L. P. Janeway 1993-9-7 4590 Yuba Plumas National Forest. About 3 mi east of Woodleaf, ca 3 mi southwest of Clipper Mills. 1043 Comment
  CHSC69131  Aster radulinus Lowell Ahart 1997-8-7 7829 Yuba Peterson Ridge Road, about 3 miles (air) east of Challenge. 762 Comment
  JEPS94622  Asyneuma prenanthoides Lowell Ahart 1997-8-7 7816 Yuba Near a branch of Little Oregon Creek, on the west side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  CHSC69136  Asyneuma prenanthoides Lowell Ahart 1997-8-7 7816 Yuba Near a branch of Little Oregon Creek, on the west side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  RSA715712  Athysanus pusillus L. Ahart 2005-2-28 11563 Yuba West of a poor dirt road, about 0.5 mile W of Marysville Road, about 0.5 mile N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 0.5 mile N of Loma Rica Road, about 5 miles (air) NE of Loma Rica. 400 Comment
  UCD114254  Athysanus pusillus Barbara Yungert 1974-4-16 44 Yuba Campbell Valley, Sierra Foothill Field Station. Comment
  UCD56208  Avena barbata Beecher Crampton 1964-4-24 6269 Yuba 5 miles E of Browns Valley. Sierra Foothill Range. Field Station. Comment
  SEINET5336141  Avena barbata C. Aarstad 1979-4-28 s.n. Yuba at junct. of Rt. 20 and N fork of Yuba in Browns Valley 183 Comment
  UCR258212  Avena fatua George K. Helmkamp, Amy Barnes 2013-3-28 20262 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  CDA18795  Azolla filiculoides Deforest, Storm 2000-3-27 PDR 1199217 Yuba Loma Rica Rd., Marysville. 0 Comment
  UCD123527  Bacopa rotundifolia C. F. Dunshee 1925-1 s.n. Yuba Sacramento Valley. Comment
  CAS-BOT-BC16371  Barbarea orthoceras Lowell Ahart 1979-6-4 s.n. Yuba Along the road at Slate Creek. 1000 Comment
  CHSC43813  Barbarea orthoceras Lowell Ahart 1979-6-4 1924 Yuba Near a stream, along the county road, west of the bridges across Slate Creek. 640 Comment
  CAS-BOT-BC16788  Barbarea verna Lowell Ahart 1977-4-18 s.n. Yuba Along Dry Creek, about 10 miles northeast of Marysville. 100 Comment
  CHSC87349  Berberis aquifolium var. dictyota Lowell Ahart 2004-4-27 10770 Yuba About 20 yards north of a drainage, about 50 yards east of the road, about 1/2 mile (air) southeast of Woodleaf. 931 Comment
  UCD95057  Berberis aquifolium var. dictyota Kathleen Keliher 1975-4-30 72 Yuba 1.5 miles E of Dobbins on Marysville Road, entrance to Middle brook Ranch. 609 Comment
  CHSC76265  Bidens cernua var. cernua Lowell Ahart 1999-9-17 8260 Yuba Sam Shintaffer Farm, about 1/8 mile southeast of the intersection of Ellis Avenue and Jack Slough Road, about 4 miles (air) northeast of Marysville. 21 Comment
  CHSC116315  Bidens frondosa Lowell Ahart 2015-11-19 20671 Yuba 100 yards or more north of the spillway area, below the high water line, west side of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  RSA726441  Bidens frondosa L. Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14497 Yuba About 1 mile (air) east of Clipper Mills. 1016 Comment
  UCR169009  Blennosperma nanum David Charlton 2005-5-16 8013 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  JEPS103252  Botrychium multifidum Lowell Ahart 2002-10-9 9964 Yuba E of a small stream, at the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1075 Comment
  CHSC96911  Boykinia occidentalis Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-13 14297 Yuba On the south side of Hampshire Creek, below the cement dam on Hampshire Creek, east of a large wet meadow, about 100 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS28076  Boykinia occidentalis Rimo Bacigalupi and L. Heckard 1961-6-16 7831 Yuba on w slope of canyon North Fork of the Yuba River (just above and w of Bullards Bar Dam (second and upper crossing of this same brook)); canyon of N. Fork of the Yuba River 586 Comment
  RSA726784  Boykinia occidentalis L. Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 s.n. Yuba About 100 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  CAS-BOT-BC418425  Boykinia occidentalis Rimo Bacigalupi 1927-7-2 1590 Yuba Downscille Road almost 8 miles northeast of Comptonville Comment
  CAS-BOT-BC145442  Brachypodium distachyon Beecher Crampton 1957-6-5 4121 Yuba Along State Highway 20, 10 miles east of Marysville. Comment
  CHSC107562  Brachypodium distachyon Lowell Ahart 2011-6-7 17422 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS118354  Brachypodium distachyon Lowell Ahart 2011-6-7 17422 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCD56999  Brachypodium distachyon Beecher Crampton 1971-6-18 8741 Yuba Sierra Foothill Range Field Station. Ca. 6.5 miles E of Browns Valley. Comment
  UCD57012  Brachypodium distachyon Beecher Crampton 1957-6-5 4121 Yuba 10 miles E of Marysville. Along State Hwy. 20. Comment
  UCR168805  Brachypodium distachyon David Charlton 2005-5-16 8033 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  CAS-BOT-BC186700  Brassicaceae Lowell Ahart 1974-5-18 s.n. Yuba About 5 miles west of Loma Rica 300 Comment
  JEPS113691  Briza maxima Lowell Ahart 2007-5-14 13863 Yuba Bottom of a swale, about 250 yards west of the power tower, power tower is about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  CAS-BOT-BC145503  Briza minor Lowell Ahart 2007-5-12 13822 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC107150  Briza minor L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10373 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants common throughout the meadow. 750 Comment
  CHSC97656  Briza minor Lowell Ahart 2007-5-12 13822 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  RSA726568  Briza minor L. Ahart 2007-5-12 13822 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  SEINET3440065 Image available Briza minor George K. Helmkamp, E. A. Helmkamp 2011-5-6 17187 Yuba East edge of Sacramento Valley: Camp Far West Road, 0.3 mi N of the junction with Hokan lane, vicinity of Camp Far West Reservoir 105 Comment
  SEINET4344868  Briza minor A. Tiehm 1975-1 644 Yuba U.C. Sierra Foothill Field station 274 Comment
  SEINET7067145  Briza minor A. G. Vestal 1947-4-30 s.n. Yuba About 5.1 miles west of Smartville. Coordinate datum: NAD27. UTM Zone 10, 641421mE, 4340515mN. Comment
  UCD57388  Briza minor Barbara Yungert 1974-4-12 25 Yuba Along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  SEINET5718966 Image available Briza minor Meredith Sinclair 1974-1 36 Yuba University of California Sierra Foothill Range Field Station.; UC Foothill Field Station 457 Comment
  UCD139146  Brodiaea R. E. Preston 1996-5-22 936 Yuba Beale Air Force Base. 30 Comment
  UCD139147  Brodiaea R. E. Preston 1996-5-22 935 Yuba Beale Air Force Base. 33 Comment
  UCD77152  Brodiaea appendiculata Robert E. Preston 2005-4-20 2337 Yuba Olivehurst, 0.2 mi S of jct Hwy 70 and McGowan Parkway 17 Comment
  SEINET10533747  Brodiaea bridgesii Lewis S. Rose 1940-5-28 Rose 40404 Yuba Dobbins. 1700 feet. Comment
  UCR232226  Brodiaea californica var. californica George K. Helmkamp, E. A. Helmkamp 2011-5-6 17211 Yuba Eastern edge of Sacramento Valley, Camp Far West Road, 1.3 miles southeast of its junction with Spenceville Road, 5.25 mi. NE (52 deg. ) of Wheatland 62 Comment
  UCD77153  Brodiaea coronaria Robert E. Preston 2003-5-25 2147 Yuba Ca. 3.65 mi WSW of Smartville, along Hammonton-Smartville Rd. 98 Comment
Read comments Jun 17 2014
  UCD77189  Brodiaea coronaria Robert E. Preston 2004-4-25 2226 Yuba Ca. 6.25 mi NE of Wheatland, along Camp Far West Rd. 99 Comment
Read comments Jun 17 2014
  SEINET7042657  Brodiaea elegans A. G. Vestal 1963-5-30 s.n. Yuba Sicard Flat Road at Route 20. Smartville quadrangle UTM Zone 10, 642569mE, 4343212mN. Comment
  CAS-BOT-BC484284  Brodiaea elegans subsp. elegans Alice Eastwood 1921-5-22 10583 Yuba Los Verjeles Comment
  UCD139169  Brodiaea elegans subsp. elegans Barbara Yungert 1974-5-13 146 Yuba east side of road between the old headquarters and the river, Sierra Foothill Field Station. Comment
  CHSC107158  Brodiaea minor L. P. Janeway 2011-7-5 10489 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants abundant in moderately dry grassy parts of the meadow. 750 Comment
  CHSC115906  Brodiaea minor L. P. Janeway 2015-6-29 11784 Yuba Northern High Sierra Nevada. Plumas National Forest; Weiss Hill Meadow, a large meadow 600 air-km east-southeast of junction of Weiss Hill Road and Forbestown Road; at the head of a minor northwestern tributary to New York Creek. 853 Comment
  JEPS28072  Brodiaea minor Rimo Bacigalupi, and L. Heckard 1961-6-16 7828 Yuba 0.2 mi. w. of Rte. 49 on rd. to Bullard Bar Dam and Dobbins (Tahoe Nat'l Forest); Tahoe Nat'l Forest 762 Comment
  UCD77179  Brodiaea minor Robert E. Preston 2002-6-28 1895 Yuba Brownsville, at jct Willow Glen Rd and Frenchtown Rd, behind Post Office. 625 Comment
  CAS-BOT-BC484368  Brodiaea minor Barbara T. Keller 1975-6-10 1514 Yuba Willow Glen Rd. from Stanfield Hill to Brownsville, about 11.5 mi. north of junction. of Willow Glen Rd. and Marysville Rd. Comment
  UCD77190  Brodiaea nana Robert E. Preston 2004-4-25 2227 Yuba Ca. 6.5 mi NE of Wheatland, along Camp Far West Rd. 99 Comment
  UCD139151  Brodiaea nana Louis K. Mann 1957-4-21 s.n. Yuba beside State Highway 20, around 3 miles northeast of Marysville. Comment
  CAS-BOT-BC484596  Brodiaea purdyi Ella Dales Cantelow 1940-5-12 3942 Yuba 6.7 mi. e. of Marysville on Hwy 20 to Grass Valley Comment
  CHSC115905  Brodiaea sierrae L. P. Janeway 2015-6-29 11785 Yuba Northern High Sierra Nevada. Plumas National Forest; Weiss Hill Meadow, a large meadow 600 air-km east-southeast of junction of Weiss Hill Road and Forbestown Road; at the head of a minor northwestern tributary to New York Creek. 853 Comment
  CHSC69158  Brodiaea sierrae Lowell Ahart 1997-8-7 7826 Yuba On the west side of the dirt road, near a unnamed stream, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  UC1133870  Brodiaea sierrae M. A. Elvin 1933-7-14 50 Yuba 2 mi w Doblin; Smartsville Quadrangle 762 Comment
  RSA319549  Bromus Patricia Wilder 1971-6-23 5204 Yuba Feather River. Two miles southeast of Forbestown on Challenge cut-off near junction with Forbestown Road. 762 Comment
  SEINET4345216  Bromus carinatus A. Tiehm 1975-1 654 Yuba U.C. Sierra Foothill Field Station 396 Comment
  UCD58207  Bromus carinatus Beecher Crampton 1954-5-10 1845 Yuba 6 miles south of Camptonville. Along Hwy. 49. North slope of the middle Yuba River. Comment
  SEINET943621  Bromus carinatus var. carinatus Carl B. Wolf 1937-1 8635 Yuba Sierra Nevada Foothills, 2 7/10 miles below Stanfield Hill on road to Browns Valley 182 Comment
  HSC9153  Bromus catharticus T. F. Newman 1965-10-9 6553 Yuba Carnes Ranch, 10 mi. N of Marysville Comment
  CDA14560  Bromus ciliatus G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3037 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  CHSC63306  Bromus commutatus Lowell Ahart 1994-6-5 7303 Yuba On the south side of Costa Creek, on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  UCD58472  Bromus commutatus Beecher Crampton 1965-6-17 7376 Yuba Ca. 3/4 mile north of Stanfield Hill. Willow Glen Creek. 396 Comment
  RSA0107419  Bromus diandrus George K. Helmkamp, Amy Barnes 2013-3-28 20259 Yuba Eastern Sacramento Valley: northbound exit road from CA-65, connecting with Forty Mile Road. 30 Comment
  SEINET4391148  Bromus diandrus A. Tiehm 1975-1 637 Yuba U.C. Sierra Foothill Field Station 198 Comment
  UCD58541  Bromus diandrus Beecher Crampton 1962-4-17 6171 Yuba Ca. 2 miles south of Marysville. Island Road and State Hwy. 24. Comment
  UCD58591  Bromus diandrus Beecher Crampton 1962-4-24 6272 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCD59483  Bromus diandrus Beecher Crampton 1962-4-24 6246 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCR258221  Bromus diandrus George K. Helmkamp, Amy Barnes 2013-3-28 20259 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  SEINET4391031  Bromus diandrus D. E. Selleck 1979-4-28 s.n. Yuba Sierra Fielid Station-UC Davis. Comment
  CHSC107156  Bromus hordeaceus L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10374 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants scattered throughout the meadow. 750 Comment
  CHSC97463  Bromus hordeaceus Lowell Ahart 2007-5-12 13823 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  HSC9201  Bromus hordeaceus T. F. Newman 1964-4-12 50 Yuba 8.5 mi. N of Marysville on Alt. 40., Boyer Rd. Comment
  SEINET3439301 Image available Bromus hordeaceus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17204 Yuba East edge of Sacramento Valley: junction of Camp Far West Road and Spenceville Road, 5.4 mi NE of Wheatland Comment
  UCD58673  Bromus hordeaceus Barbara Yungert 1974-5-1 G- 2 Yuba Along SC-12 fence, southeastern bend in road, SC-14 project area. Sierra Foothill Field Station. Comment
  UCD58681  Bromus hordeaceus Beecher Crampton 1962-4-24 6243 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCD58825  Bromus hordeaceus Beecher Crampton 1962-4-24 6244 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCR231331  Bromus hordeaceus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17186 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.3 mile north of the junction with Hokan Lane, vicinity of Camp Far West Reservoir 105 Comment
  SEINET4391216  Bromus hordeaceus C. Aarstad 1979-4-28 s.n. Yuba At junct of Rt. 20 and N fork of Yuba in Browns Valley 183 Comment
  SEINET4391217  Bromus hordeaceus A. Tiehm 1975-4-25 633 A Yuba U.C. Sierra Foothill Field Station 198 Comment
  CHSC63307  Bromus laevipes Lowell Ahart 1994-6-5 7299 Yuba On the east side of Costa Creek, on the south side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  JEPS95516  Bromus laevipes Lowell Ahart 1994-6-5 7299 Yuba 3 air miles E of Forbestown (E side of Costa Creek, S side of Forbestown Road) 853 Comment
  CAS-BOT-BC162368  Bromus madritensis Lowell Ahart 1981-6-13 2850 Yuba Sierra Nevada. On west side of McGinn Hill, east of Loma Rica. 300 Comment
  UCD58999  Bromus madritensis Beecher Crampton 1962-4-24 6270 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  CHSC113665  Bromus madritensis subsp. madritensis L. P. Janeway 2014-5-12 11245 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  CAS-BOT-BC162207  Bromus orcuttianus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54081 Yuba Sierra Nevada. About 2 miles northeast of Dobbins on Oregon Hill Road. 701 Comment
  CHSC84150  Bromus orcuttianus Lowell Ahart 2003-7-2 10340 Yuba About 200 yards south of the 4-H Camp, on the west side of Oregon Hill Road, about 1/2 mile north of Marysville Road, about 2 miles (air) northeast of Dobbins. 815 Comment
  JEPS100266  Bromus orcuttianus Dean W. Taylor 2001-5-9 17639 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  JEPS104069  Bromus orcuttianus Lowell Ahart 2003-7-2 10340 Yuba About 200 yd south of the 4-H Camp, on the w side of Oregon Hill Rd, ca 1/2 mi n of Marysville Rd, ca 2 mi (air) ne of Dobbins. 815 Comment
  SEINET3450783  Bromus orcuttianus Unknown 2003-7-2 10340 Yuba Dobbins, Dobbins, about 2 air miles north, about 200 yards south of the 4-H Camp on the west side of Oregon Hill Road, about 0.5 miles north of Marysville Road Comment
  UCD59699  Bromus sterilis Beecher Crampton 1962-4-24 6268 Yuba 5 miles east of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCD59722  Bromus sterilis Beecher Crampton 1966-6-14 7744 Yuba 1 mile east of Brownsville. 731 Comment
  JEPS107414  Calandrinia ciliata Lowell Ahart 2005-3-11 11620 Yuba In center of the poor dirt road, 100 yd W of large rock outcrop, ca. 1/2 mi W of Marysville Rd, ca. 1/2 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/2 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 386 Comment
  UCR231317  Calandrinia ciliata George K. Helmkamp, E. A. Helmkamp 2011-5-6 17195 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.9 mile west of the junction at Camp Far West Reservoir 65 Comment
  CHSC96476  Callitriche heterophylla var. bolanderi Lowell Ahart 2007-4-17 13684 Yuba In shallow water of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  CHSC116033  Callitriche heterophylla var. heterophylla Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20649 Yuba North of the spillway area, at the west side and near top of Lake Francis Dam, below the high water line of Lake Francis, about 1-1/2 miles south of Dobbins. 512 Comment
  JEPS124312  Callitriche heterophylla var. heterophylla Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20649 Yuba Below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CHSC14019  Calochortus albus J. A. Roberts 1973-4-12 12 Yuba 20 mi n of Hwy 20, 10 mi e of Marysville. 457 Comment
  CHSC3656  Calochortus albus Robert D. Briggs 1966-4-6 R- 113 Yuba One mile east of Smartsville, on hwy. #20. Comment
  UC672160  Calochortus albus Herbert L. Mason 1927-5-11 3722 Yuba near Dobbins (Sierra foothills); Sierra Comment
  CAS-BOT-BC487483  Calochortus albus Alice Eastwood 1921-5-22 10558 Yuba Los Vergils Comment
  SEINET8194169  Calochortus albus R. T. Short 1959-4-11 s.n. Yuba 5 miles W of Smartsville, on CA Hwy 20. 366 Comment
  UCD169987  Calochortus luteus M. Sciutto-Creps 1998-4-26 36 Yuba 7 miles northeast of the town of Wheatland, in the property adjacent to the southeast end of Beale Air Force Base, about half a mile NE of Best Slough, throughout the whole grassland area. 43 Comment
  CAS-BOT-BC483433  Calochortus luteus Lewis S. Rose 1940-5-28 40401 Yuba Oregon House 457 Comment
  UCD139537  Calochortus luteus Barbara Yungert 1974-5-6 122 Yuba along Scott Lane, western SC -19 project area, Sierra Foothill Field Station. Comment
  UCD39214  Calochortus luteus Beecher Crampton 1968-5-6 8257 Yuba Ca. 4 miles east of Brown's Valley. Comment
  SBBG16191  Calochortus monophyllus H. and M. Dearing 1939-5-6 3282 Yuba near Challenge Comment
  SBBG22463  Calochortus monophyllus H. and M. Dearing 1939-5-6 3283 C Yuba near Challenge Comment
  CAS-BOT-BC493080  Calochortus monophyllus Elmer I. Applegate 1934-5-2 8891 Yuba Near Indian Valley, northern Yuba County Comment
  CAS-BOT-BC493081  Calochortus monophyllus Alice Eastwood 1921-5-22 10578 Yuba Los Vergils Comment
  CAS-BOT-BC493121  Calochortus monophyllus L. S. Smith 1931-5-1 s.n. Yuba Burn west of Camptonville near road, Tahoe Forrest 548 Comment
  RSA166672  Calochortus monophyllus H. Dearing, M. Dearing 1939-5-6 3282 Yuba Near Challenge Comment
  UCD139558  Calochortus monophyllus Kathleen Keliher 1975-4-30 73 Yuba in front of entrance to Middle Brook Ranch, one and one half mile east of Dobbins on Marysville Road. 609 Comment
  CHSC67732  Calochortus superbus James D. Jokerst 1979-5-31 258 Yuba Marysville Rd. SW of Bullards Bar Reservoir, 3.9 mi NE of town of Oregon House. Comment
  UCD139576  Calochortus superbus Kathleen Keliher 1975-5-30 124 Yuba 2 miles west of Dobbins on Marysville Road. Comment
  SEINET8197775  Calochortus venustus D. Savage 1963-6-8 s.n. Yuba W slope of Sierra's near Marysville. Comment
  CHSC28141  Calycadenia multiglandulosa J. D. Jokerst 1979-5-31 261 Yuba Marysville Rd. 3.9 mi NE of town of Oregon House (SW of Bullards Bar Resv.) across the street from Bobbs Ranger Station. Comment
  CHSC69132  Calycadenia multiglandulosa Lowell Ahart 1997-8-7 7805 Yuba On the north side of New York Flat Road, about one mile northwest of La Porte Road, about 1 mile north of Brownsville. 731 Comment
  CAS-BOT-BC270730  Calycadenia multiglandulosa Lowell Ahart 1977-7-31 s.n. Yuba Near Brownsville 600 Comment
  CAS-BOT-BC270731  Calycadenia multiglandulosa David D. Keck 1932-7-1 1610 Yuba 2 miles E of Dobbins, Stanfield Hill 762 Comment
  CAS-BOT-BC270732  Calycadenia multiglandulosa David D. Keck 1932-7-1 1610 Yuba 2 miles E of Dobbins, Stanfield Hill 762 Comment
  CAS-BOT-BC270734  Calycadenia multiglandulosa Lewis S. Rose 1940-5-28 40399 Yuba Oregon House 457 Comment
  UCD129716  Calycadenia multiglandulosa Gerald D. Carr 1971-5-23 554 Yuba 0.6 mile north of Oregon House Post Office on road to Brownsville. Comment
  UCD129737  Calycadenia multiglandulosa Gerald D. Carr 1971-8-15 632 Yuba 0.6 mile north of Oregon House Post Office on road to Brownsville. Comment
  UCD129818  Calycadenia multiglandulosa Barbara Yungert 1974-5-15 159 Yuba aaround 200 yards from Dry Creek, Lower Lewis project area, Sierra Foothill Field Station. Comment
  RSA255476  Calycadenia multiglandulosa subsp. bicolor Gerald D. Carr 1971-5-23 554 Yuba 0.6 miles north of Oregon House Post Office on road to Brownsville Comment
  RSA6263  Calycadenia multiglandulosa subsp. bicolor D. D. Keck 1932-7-1 1610 Yuba 2 miles E of Dobbins; to Stanfield Hill Comment
  UC1119095  Calycadenia spicata M. A. Elvin 1933-6-6 27 Yuba 4 mi sw of Courtney Cross; Smartsville 60 Comment
  UC1143024  Calycadenia spicata M. A. Elvin 1933-7-1 38 Yuba 2 mi w of Lafferty Peak; Smartsville 152 Comment
  CHSC83020  Calycadenia truncata Lowell Ahart 2002-10-10 9977 Yuba On the east side of the dirt road, east of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20. 166 Comment
  CHSC117665  Calycanthus occidentalis Lowell Ahart 2016-8-30 21319 Yuba In ravine on the north side of a dirt road, about one mile east of Challenge. Comment
  JEPS127132  Calycanthus occidentalis Lowell Ahart 2016-8-30 21319 Yuba About one mile east of Challenge. Comment
  UCD137935  Calycanthus occidentalis Barbara Yungert 1974-5-20 166 Yuba along Porter Creek south of station headquarters, Sierra Foothill Field Station. Comment
  SEINET5717678 Image available Calycanthus occidentalis Wayne Blizzard 1974-1 36 Yuba Ca. 300 yards south of Station Headquarters, University of California Sierra Foothill Range Field Station.; UC Foothill Field Station Comment
  CHSC84995  Calyptridium monospermum Lowell Ahart 2003-10-29 10685 Yuba On the south side of Lost Creek, below the high water line of Sly Creek Reservoir, about 400 yards southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS95508  Calystegia occidentalis subsp. occidentalis Lowell Ahart 1994-6-27 8000 Yuba 4 mi NE of Strawberry Valley (along the N side of a small stream, E bank of the logging road, E of Schwartz Meadow, on the E side of La Porte Road) 1219 Comment
  CHSC70244  Calystegia occidentalis subsp. occidentalis R. A. Schlising; L. A. Bellue 1973-6-13 3097 Yuba 3.8 mi SE of Challenge, along Oregon Hill Road. Comment
  CHSC110459  Camassia quamash subsp. breviflora L. P. Janeway 2013-7-2 11180 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, on of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. 815 Comment
  CHSC49647  Camassia quamash subsp. breviflora Vernon Oswald 1984-6-25 1310 Yuba E21 between Challenge and LaPorte, ca. 250 ft S of the Plumas Co. line. 1280 Comment
  CDA14564  Campanula prenanthoides G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3043 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  UCD114164  Capsella bursa-pastoris Barbara Yungert 1974-4-10 11 Yuba irrigated pasture along Porter Creek, SC-5 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC520406  Cardamine breweri Lowell Ahart 1978-5-31 1748 Yuba Edge of the South Fork of the Feather River, 0.5 mi above the Golden Trout Crossing, approx. 4 mi W of Sly Creek Reservoir, W of Strawberry Valley 750 Comment
  CHSC90466  Cardamine oligosperma Lowell Ahart 2005-3-11 11600 Yuba On the west side of a large rock outcrop, just east of the poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 386 Comment
  CHSC87347  Cardamine pachystigma var. pachystigma Lowell Ahart 2004-4-27 10767 Yuba About 20 yards north of a drainage, about 50 yards east of the road, about 1/2 mile (air) southeast of Woodleaf. 931 Comment
  JEPS106277  Cardamine pachystigma var. pachystigma Lowell Ahart 2004-4-27 10767 Yuba About 20 yards north of a drainage, about 50 yards east of the road, about 1/2 mile (air) southeast of Woodleaf 931 Comment
  RSA634972  Cardaria draba Michael A. Vincent 1999-6-12 8637 Yuba Along canal parallel to Rt. 20 at junction with Feather River Blvd., 0.4 mile N of Sutter county line, Marysville. Comment
  CHSC108181  Carduus pycnocephalus Lowell Ahart 2011-6-7 17374 Yuba Grassy road margin, about 50 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC78119  Carduus pycnocephalus Lowell Ahart 2000-5-25 8402 Yuba Bank of a large wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  JEPS118319  Carduus pycnocephalus Lowell Ahart 2011-6-7 17374 Yuba Grassy road margin, about 50 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CHSC107162  Carduus pycnocephalus subsp. pycnocephalus L. P. Janeway 2011-6-2 10355 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow, fire-killed areas of manzanita in and around the meadow. Plants under burned manzanitas and burned areas into edge of forest. 750 Comment
  CHSC63284  Carex amplifolia Lowell Ahart 1994-6-5 7301 Yuba On the bottom and sides of Costa Creek, on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  CHSC96958  Carex amplifolia Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-13 14296 Yuba On the south side of Hampshire Creek, on the southeast side of a large wet meadow, about 80 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  UC1552705  Carex amplifolia Frederica Bowcutt 1985-6-8 589 Yuba 1 air mi se Canptonville (along Oregon Creek, 12 air mi n of Nevada City); Tahoe National Forest, Oregon Creek 762 Comment
  SEINET13327107  Carex angustata L. Ahart 2010-7-27 16917 Yuba Notrh side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam 1219 Comment
  CHSC115738  Carex cyrtostachya P. F. Zika; B. Wilson, L. Ahart, L. Janeway 2011-8-5 25718 Yuba Hampshire Meadow, 1 air mile E of Clipper Mills, northr Sierra Nevada Highlands. 1025 Comment
  JEPS121421  Carex cyrtostachya P. F. Zika, B. Wilson, L. Ahart, L. Janeway 2011-8-5 25718 Yuba Hampshire Meadow, 1 air mile E of Clipper Mills, northern Sierra Nevada Highlands (n SNH) Comment
  UCD80255  Carex densa CNPS SN Foothill Team 2005-3-17 SNFN 0041 Yuba CDFG Spenceville Wildlife Area. The seep is upslope to the SW of Jones Road, less than 100 m from gate at intersection with Spenceville Road. 100 Comment
  CAS-BOT-BC34945  Carex densa John Thomas Howell; Gordon H. True 1970-5-29 5425 Yuba Sierra Nevada. Artificial lake ca. 1 mile SW of Spenceville (site) on Cox Creek. 152 Comment
  CHSC63192  Carex echinata subsp. echinata Lowell Ahart 1994-6-27 7385 Yuba Meadow, north of the dirt road that goes from La Porte Road to the Poverty Hill Mine (County Road), east of Schwartz Meadow, about 4 miles north-east of Strawberry Valley. 1219 Comment
  JEPS113711  Carex echinata subsp. echinata Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14299 Yuba On the south side of Hampshire Creek, on the southeast side of a large wet meadow, about 80 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills 1021 Comment
  SEINET10588483  Carex echinata subsp. echinata Lowell Ahart 2000-6-23 Ahart 8508 Yuba T20N, R8E, northwest 1/4 Section 15. About 200 yards east of the meadow along La Porte Road, about 50 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  CAS-BOT-BC19989  Carex feta Barbara T. Keller 1975-6-10 1495 Yuba Challenge Experimental Forest on La Porte Road near Challenge. 762 Comment
  CHSC76810  Carex feta G. Douglas Barbe; J. T. Howell, T. C. Fuller 1981-6-22 3052 Yuba Meadow 3.6 miles NE of Strawberry Valley on La Porte-Quincy Road, at the county line with Plumas Co. 1280 Comment
  JEPS104244  Carex feta Lowell Ahart 2003-7-6 10361 Yuba In a meadow, east of the power line, about 60 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  JEPS95526  Carex feta Lowell Ahart 1994-6-5 7307 Yuba 3 air miles E of Forbestown (E side of Forbestown Road) 853 Comment
  SEINET13352664  Carex feta P. F. Zika, Peter F. Zika 2010-6-22 24978 Yuba W side of Challenge cut-off, 2.5 air km NE of Brownsville, northern Sierra Nevada Highland (n SNH) Comment
  CAS-BOT-BC21234  Carex fracta John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54094 Yuba The Sierra Nevada. 3.6 miles NE of Strawberry Valley on La Porta - Quincy Road. 1280 Comment
  CDA33076  Carex fracta G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3048 Yuba 3.6 miles northeast of Strawberry Valley on La Porta-Quincy Road, at Plumas County Line. Comment
  RSA724936  Carex gracilior L. P. Janeway 2006-5-24 8631 Yuba South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. NAD83. 483 Comment
  SEINET7560142 Image available Carex gracilior L. P. Janeway 2006-5-24 8631 Yuba Oregon House 7.5' Quad. Northern Sierra Nevada Foothills. South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. 483 Comment
  CAS-BOT-BC146654  Carex hirtissima Lewis S. Rose 1940-5-28 40386 Yuba Browns Valley 60 Comment
  CAS-BOT-BC146662  Carex hirtissima Lewis S. Rose 1940-5-28 40386 Yuba Browns Valley 60 Comment
  CAS-BOT-BC146668  Carex hirtissima Peter H. Raven 1953-5-9 5475 Yuba 1 mile from Brownsville on road to Challenge Comment
  CHSC106655  Carex hirtissima Peter F. Zika 2010-6-22 24979 Yuba Northern Sierra Nevada Highlands (n SNH); W side of Challenge Cut-off, 2.5 air km NE of Brownsville.. 755 Comment
  JEPS121022  Carex hirtissima Peter F. Zika 2010-6-22 24979 Yuba W side of Challenge Cut-off, 2.5 air km NE of Brownsville Comment
  JEPS87733  Carex hirtissima Lowell Ahart 1994-6-27 7386 Yuba ca. 4 mi. n.e. Strawberry Valley (s. side of small stream, e. of logging rd., e. of Schwartz Meadow, on e. side of La Porte Rd.) 1219 Comment
  JEPS87734  Carex hirtissima Lowell Ahart 1994-6-27 7386 Yuba on the e side of La Porte Road about 4 mi ne of Strawberry Valley; along the s side of a small stream, e of the logging road, e of Schwartz Meadow 1219 Comment
  RSA769203  Carex hirtissima P. F. Zika 2010-6-22 24979 Yuba West side of Challenge Cut-off, 2.5 air km northeast of Brownsville, Northern Sierra Nevada Highlands 755 Comment
  SEINET13709580  Carex hirtissima Lowell William Ahart, Lowell William Ahart 2003-1 10359 Yuba 5 Mi. N of Dobbins Near Fountain Hill Road (39 Deg 26'11.7"N, 121 Deg 12'07.3"W) 2746 Ft. 837 Comment
  JEPS95438  Carex lemmonii Lowell Ahart 1994-6-5 7298 Yuba about 3 (air) miles E of Forbestown (Costa Creek, on the S side of Forbestown Road) 853 Comment
  JEPS95507  Carex lemmonii Lowell Ahart 1994-6-27 7387 Yuba 4 mi NE of, E of the logging road, E of Schwartz Meadow, E side of La Porte Road Strawberry Valley 1219 Comment
  CHSC115302  Carex multicaulis Lowell Ahart 2015-4-30 20125 Yuba Open forest, on the south side of the gravel road, about 10 yards east of the gate, about 3/4 mile (air) southeast of Woodleaf. Mixed Evergreen Forest. 948 Comment
  JEPS100270  Carex multicaulis Dean W. Taylor 2001-5-9 17643 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  JEPS113713  Carex stipata var. stipata Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14298 Yuba On the south side of Hampshire Creek, on the southeast side of a large wet meadow, about 80 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills 1021 Comment
  UCD140887  Carex stipata var. stipata Beecher Crampton 1966-6-14 7758 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  CAS-BOT-BC499133  Carex xerophila Peter F. Zika; L. P. Janeway 2012-5-16 25870 Yuba Ponderosa Way near LaPorte Road, picnic area N of airport, 2.7 air km WSW of Russ Hill, Brownsville 665 Comment
  CHSC102954  Carex xerophila L. P. Janeway 2006-5-24 8619 Yuba Northern High Sierra Nevada Foothils. East side of Ponderosa Way 1.3 km north of La Porte Road and Brownsville. 686 Comment
  JEPS121793  Carex xerophila L. P. Janeway 2006-5-24 8626 Yuba Northern Sierra Nevada Foothills. Along Forsynthe Road 2.7 road km south of New York House Road; above Prince Albert Creek. Comment
  RSA0056156  Carex xerophila L. P. Janeway 2006-5-24 8619 Yuba Northern Sierra Nevada Foothills. East side of Ponderosa Way 1.3 km north of La Porte Road & Brownsville. 686 Comment
  RSA0056157  Carex xerophila L. P. Janeway 2006-5-24 8619 Yuba Northern Sierra Nevada Foothills. East side of Ponderosa Way 1.3 km north of La Porte Road & Brownsville. 686 Comment
  UCD80256  Carex xerophila CNPS SN Foothill Team 2005-5-31 SNFN 0329 a Yuba BLM Ponderosa Landfill, east of the defunct landfill. 699 Comment
  CHSC115869  Carex xerophila Peter F. Zika; L. P. Janeway 2012-5-16 25870 Yuba Ponderosa Way near La Porte Road, picnic area N of airport, 2.7 air km WSW of Ruff Hill, Brownsville. 665 Comment
  SEINET10806562  Carex xerophila Peter F. Zika, Lawrence P. Janeway 2012-5-16 Zika 25871 Yuba E of junction of Jiggs Road and Ponderosa Way, 3 air km W of Ruff Hill, Brownsville. Northern Sierra Nevada Foothill/Highlands boundary (nSNF/H) 715 Comment
  UCD23259  Castilleja applegatei W. R. Powell 1968-5-15 1499 Yuba 2 miles NE of Dobbins on Fountain House Road. 792 Comment
  CHSC115303  Castilleja applegatei subsp. pinetorum Lowell Ahart 2015-5-9 20147 Yuba On the west side of the road, on the steep road cut, Highway 49, about one mile northeast of the intersection of Marysville Road and Highway 49, about 2 miles southwest of Camptonville. Mixed Evergreen Forest. 803 Comment
  RSA0117085  Castilleja applegatei subsp. pinetorum Lowell A. Ahart 2015-5-9 20147 Yuba On the west side of the road, on the steep road cut, Highway 49, about 1 mile northeast of the intersection of Marysville Road and Highway 49, about 2 miles southwest of Camptonville. 804 Comment
  UCD122329  Castilleja attenuata W. R. Powell 1968-4-24 1475 Yuba Along Spring Valley Road, 1 1/2 miles northwest of Browns Valley. 106 Comment
  CHSC107122  Castilleja lacera L. P. Janeway 2011-6-2 10357 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  CHSC96570  Castilleja lacera L. P. Janeway 2006-5-24 8632 Yuba Northern Sierra Nevada Foothills. South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. 483 Comment
  UCD122574  Castilleja lineariloba Barbara Yungert 1974-4-17 59 Yuba North of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UCD122592  Castilleja lineariloba Barbara Yungert 1974-4-25 89 Yuba SC-14 project area, Sierra Foothill Field Station. Comment
  JEPS123877  Castilleja pruinosa Lowell Ahart 2015-4-30 20135 Yuba About 2 1/4 miles (air) southwest of the Brownsville, about 2 miles (air) northeast of Rackerby. Comment
  UCD123054  Castilleja rubicundula subsp. lithospermoides Barbara Yungert 1974-5-6 126 Yuba along Road 6, K 1-11 project area, Sierra Foothill Field Station. Comment
  UCD80765  Castilleja tenuis CNPS SN Foothill Team 2005-6-1 SNFN 0173 d Yuba CDFG, Daugherty Hill Wildlife Area, in the 'C' shaped parcel located to the east of the Daugherty Hill unit. 623 Comment
  UC1281467  Ceanothus H. E. McMinn 1946-5-11 5506 Yuba road from Dobbins to Camptonville; road from Dobbins to Camptonville Comment
  UCD110816  Ceanothus cuneatus Christopher Mallek 2008-1 s.n. Yuba Indiana Creek. 617 Comment
  CAS-BOT-BC50708  Ceanothus integerrimus Lester Rowntree 1941-5-14 s.n. Yuba On road between Dobbin and Comptonville Comment
  SJSU14290  Ceanothus integerrimus N. A. Hopkins 1989-6-29 1541 Yuba Ridge Rd to Allegheny c. 2 mi off Hwy 49 914 Comment
  UCD112007  Ceanothus integerrimus Barbara Yungert 1974-5-1 101 Yuba South of the road, SC-14 project area, Sierra Foothill Field Station. Comment
  CDA14563  Ceanothus integerrimus var. macrothyrsus G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3040 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  CAS-BOT-BC50587  Ceanothus lemmonii John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54071 Yuba Sierra Nevada - 1/4 miles southwest of Bullards Bar Dam on road to Challenge 609 Comment
  CAS-BOT-BC50588  Ceanothus lemmonii Peter H. Raven 1953-5-9 5473 Yuba 1 mile from Brownsville on road to Challenge Comment
  CAS-BOT-BC50589  Ceanothus lemmonii Lester Rowntree 1941-5-14 s.n. Yuba On road between Dobbin and Camptonville Comment
  CHSC112855  Ceanothus lemmonii L. P. Janeway 2014-4-24 11231 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  CHSC93933  Ceanothus lemmonii L. P. Janeway 2006-5-24 8610 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way 1.0 road km southeast of Robinson Mill Road; 1.2 air km southeast of Robinson Mills and Forbestown Road. 768 Comment
  CHSC96569  Ceanothus lemmonii L. P. Janeway 2006-5-24 8629 Yuba Northern Sierra Nevada Foothills. Along Forsythe road 2.7 road km south of New York House Road; above Prince Albert Creek. 604 Comment
  RSA517189  Ceanothus lemmonii T. C. Fuller, G. D. Barbe 1981-6-22 s.n. Yuba 1.4 miles SW of Bullards Bar Dam on road to Challenge, alt 2000ft 610 Comment
  UC410448  Ceanothus lemmonii Alice Eastwood 1930-4-12 17930 Yuba Texas hill rd Comment
  CAS-BOT-BC51994  Ceanothus prostratus Milo S. Baker 1941-6-19 9964 Yuba Roadside between Brownsville and La Porte 1371 Comment
  UCD112656  Ceanothus prostratus Kathleen Keliher 1975-5-6 92 Yuba Along La Porte Road, 2 miles from Forbestown Road, Challenge. 914 Comment
  CDA35772  Centaurea jacea J. R. Keck Jr., Horn 1989-8-23 PDR# 893580 Yuba North side of La Porte Rd. (E21) halfway between Challenge and Woodleaf. 0 Comment
  CAS-BOT-BC277077  Centaurea melitensis Lowell Ahart 1981-6-13 2852 Yuba South side of McGinn Hill, east of Loma Rica 300 Comment
  JEPS21726  Centaurium muehlenbergii Alice Eastwood 1913-7-3 Yuba Wheatland Comment
  JEPS46981  Centaurium muehlenbergii W. L. Jepson 1934-7-29 16757 Yuba Marysville Comment
  UCR169012  Centaurium muehlenbergii David Charlton 2005-5-16 8001 B Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  RSA10984  Centaurium muehlenbergii Carl B. Wolf 1927-11-5 1442 Yuba Eight miles from Marysville on road to Browns Valley. Comment
  RSA220016  Centaurium muehlenbergii G. H. True, J. T. Howell 1967-6-13 3571 Yuba Camp Far West Reservoir, Bear River east of Wheatland. 61 Comment
  CHSC113188  Centaurium tenuiflorum Lowell Ahart 2013-11-30 19308 Yuba On north side of Dry Creek, below the high water line of Collins Lake, about 300 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 354 Comment
  CHSC97234  Centromadia fitchii Lowell Ahart 2007-6-22 14210 Yuba Along a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  UC1069524  Centromadia fitchii M. A. Elvin 1933-6-7 21 Yuba 3 mi se O'Brien's Ranch; Smartsville Quad. 60 Comment
  CAS-BOT-BC288824  Centromadia fitchii Mrs. S. Earle Kelley 1920-10-31 s.n. Yuba [Los Verjeles?] Comment
  CAS-BOT-BC288825  Centromadia fitchii Mrs. S. Earle Kelley 1921-5-1 s.n. Yuba [Los Verjeles?] Comment
  CHSC97659  Centunculus minimus Lowell Ahart 2007-5-12 13810 Yuba Bottom of a scraped area, about 30 feet west of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  SBBG1146  Cephalanthera austiniae H. and M. Dearing 1939-5-8 3503 Yuba near Camptonville Comment
  JEPS113529  Cerastium glomeratum Lowell Ahart 2007-5-12 13786 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  UCD14963  Cerastium glomeratum Susan J. Schmickle 1977-4-16 2 Yuba California, Yuba Co.; at the UC Sierra Field Station, northwest off of Road 4; Comment
  UCD98085  Cerastium glomeratum Barbara Yungert 1974-5-3 112 Yuba K 1-11 project area; Sierra Foothill Field Station. Comment
  CAS-BOT-BC400180  Ceratophyllum demersum W. V. Middlekauff 1955-7-4 s.n. Yuba 3 miles n.w. of Rio Oso Post Office Comment
  UCD105667  Cercis occidentalis Barbara Yungert 1974-5-16 162 Yuba Along Dry Creek, below Porter fence line, P-2 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC140761  Chamaebatia foliolosa Elmer I. Applegate 1934-5-2 8896 Yuba Near Indian Valley Comment
  CHSC112869  Chamaebatia foliolosa L. P. Janeway 2014-4-24 11232 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  SEINET3814609 Image available Chamaebatia foliolosa Lewis S. Rose 1933-5-27 33204 Yuba Woodleaf. 1052 Comment
  UCD112923  Chamaebatia foliolosa Collector unknown 1918-1 s.n. Yuba Mountain Misery. Comment
  UCD112934  Chamaebatia foliolosa Kathleen Keliher 1975-5-6 90 Yuba Near Forbestown Road, 30 meters from La Porte Road, 1 mile east of Woodleaf. 929 Comment
  CHSC69139  Chamaesyce maculata Lowell Ahart 1997-8-7 7806 Yuba On the north side of New York Flat Road, about one mile northwest of La Porte Road, about 1 mile north of Brownsville. 731 Comment
  CHSC81781  Chamaesyce maculata Lowell Ahart 2001-11-2 9399 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  CHSC83041  Chamaesyce maculata Lowell Ahart 2002-10-9 9967 Yuba On the west bank of a small stream, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS102535  Chamaesyce maculata Lowell Ahart 2001-11-2 9399 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  JEPS95853  Chamaesyce nutans Lowell Ahart 1999-9-5 8191 Yuba on the disturbed area on the south side of Woodruff Lane; just west of Kimball Lane; about 5 miles (air) northeast of Marysville 24 Comment
  CHSC78142  Chamaesyce ocellata subsp. ocellata Lowell Ahart 2000-6-11 8469 Yuba On the west side of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 152 Comment
  CDA42981  Chamaesyce serpillifolia subsp. serpillifolia L. Ahart 2013-11-3 19299 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. Comment
  CHSC83040  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2002-10-9 9966 Yuba On the west bank of a small stream, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CHSC97707  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2007-11-8 14580 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  JEPS103420  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2002-10-9 9966 Yuba On the W bank of a small stream, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS115025  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2007-11-8 14580 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan 73 Comment
  JEPS98462  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2000-6-11 8467 Yuba 6 air miles S of Smartville (a north branch of Dry Creek, 100 yds W of Smartville Road, 2 mi N of int of Waldo Rd and Smartville Rd) 146 Comment
  UCD37853  Chamomilla Beecher Crampton 1962-4-24 6257 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CAS-BOT-BC70099  Cheilanthes gracillima C. E. Dotey s.n. Yuba unspecified Comment
  JEPS35374  Cheilanthes gracillima G. E. Davenport 1877-1 Yuba Comment
Read comments Jun 28 2010
  JEPS115017  Chenopodium ambrosioides var. suffruticosum Lowell Ahart 2007-11-1 14548 Yuba On the north side of Loma Rica Road, east of the Fire Station, about 3/4 mile east of Loma Rica 146 Comment
  CDA14559  Chenopodium botrys G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3036 Yuba 1.4 miles west of New Bullards Bar Dam, between Log Cabin and Camptonville. 609 Comment
  RSA795982  Chlorogalum angustifolium James R. Shevock, Robert Holland 1985-5-6 11125 Yuba Beale Air Force Base E of Marysville. Pools adjacent to runway. 40 Comment
  SEINET4566903 Image available Chlorogalum angustifolium James R. Shevock, Bob Holland 1985-1 11125 Yuba Sacramento Valley. Beale Air Force east of Marysville. Pools adjacent to runway. 40 Comment
  CAS-BOT-BC498793  Chlorogalum angustifolium Gordon H. True; J. T. Howell 1967-6-13 3552 Yuba Open grassy flats and slopes - abundant. Ca. 5 miles east of Wheatland and 1 mile north of Bear River 54 Comment
  CHSC115914  Chlorogalum pomeridianum var. pomeridianum L. P. Janeway 2015-7-1 11797 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, one of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. 815 Comment
  CHSC81001  Chondrilla juncea Lowell Ahart 2001-8-14 9108 Yuba On the south side of Marysville Road, about 50 yards east of the east end of Bullards Bar Dam. 609 Comment
  CHSC81751  Chondrilla juncea Lowell Ahart 2001-11-2 9409 Yuba On the east side of Smartville Road, about 4 miles (air) south of Smartville. 175 Comment
  CHSC83039  Chondrilla juncea Lowell Ahart 2002-10-10 9978 Yuba On the east side of the dirt road, east of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20. 166 Comment
  CHSC93154  Chondrilla juncea L. P. Janeway 1994-8-9 4725 Yuba Northern High Sierra Nevada. East side of Slate Creek about 3 mi northeast of Strawberry Valley; along Road 20N35 (road to Scales) 0.4 mi southeast of its bridge across Slate Creek. 1036 Comment
  CAS-BOT-BC36351  Chrysolepis sempervirens Alice Eastwood 1918-4-7 6804 Yuba on Hills above North Fork & Yuba Rivers Comment
  CAS-BOT-BC228729  Cistanthe umbellata Lowell Ahart 1980-8-12 2548 Yuba Along Slate Creek 1250 Comment
  LA205995  Clarkia biloba subsp. brandegeeae H. Lewis; M. Lewis 1947-6-11 389 Yuba 0.7 mi. W of Oregon House P. O. on the road to Stanfield Hill Comment
  UC1299415  Clarkia biloba subsp. brandegeeae Freed W. Hoffman 1946-6-14 742 Yuba near North San Juan; North Fork Yuba River Comment
  LA206352  Clarkia gracilis subsp. gracilis H. Lewis; M. Lewis, M. R. Roberts 1951-5-19 820 Yuba 2.3 mi. E of Oregon House Comment
  CAS-BOT-BC172049  Clarkia gracilis subsp. gracilis Lowell Ahart 1981-6-13 2846 Yuba Near McGinn Hill, Loma Rica, Sierra Nevada 300 Comment
  RSA0060032  Clarkia gracilis subsp. gracilis Harlan Lewis, M. Lewis, M. Roberts 1951-5-19 820 Yuba 2.3 mi. east of Oregon House. Comment
  CAS-BOT-BC163270  Clarkia mildrediae subsp. lutescens Lowell Ahart 1980-7-25 2486 Yuba Near Slate Creek 1200 Comment
  CAS-BOT-BC163271  Clarkia mildrediae subsp. lutescens L. P. Janeway 1994-7-1 4674 Yuba West side of Slate Creek, 3 mi northeast of Strawberry Valley; along Road 10N35 0.1 mi south of the bridge across Slate Creek 1005 Comment
  CHSC71149  Clarkia mildrediae subsp. lutescens L. P. Janeway 1994-7-1 4674 Yuba West side of Slate Creek, 3 mi northeast of Strawberry Valley; along Road 10N35 0.1 mi south of the bridge across Slate Creek. Southeast-facing road cutbank. 1005 Comment
  CHSC89897  Clarkia mildrediae subsp. lutescens M. K. Hayden; Z. E. Diggory 2004-6-25 Yuba Northern High Sierra Nevada. Located at Slate Creek Diversion across from the intake structure. 1066 Comment
  CHSC89899  Clarkia mildrediae subsp. lutescens M. K. Hayden; Z. E. Diggory 2004-6-25 Yuba Northern High Sierra Nevada. Located at Slate Creek Diversion across from the intake structure. 1066 Comment
  JEPS100342  Clarkia mildrediae subsp. lutescens Dean W. Taylor 2001-6-21 17811 Yuba canyon of the North Fork Yuba River, near the confluence of Canyon Creek at Kelly Bar 609 Comment
  JEPS126006  Clarkia mildrediae subsp. lutescens D. W. Taylor 2001-6-20 17797 Yuba Ca 2 air miles SW of Union Hill; creek along Forest Road 20N06 t0.4 miles E of the junction with Forest Road 20N35, in the canyon of Rock Creek. Comment
  SEINET7042646  Clarkia purpurea A. G. Vestal 1963-5-30 s.n. Yuba Weedy depression near Dry Creek and north oh Sicard Flat. Smartville quadrangle UTM Zone 10, 642203mE, 4345148mN. Comment
  CHSC108229  Clarkia purpurea subsp. quadrivulnera Lowell Ahart 2011-6-7 17405 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  HSC100754  Clarkia purpurea subsp. quadrivulnera Lowell Ahart 2011-6-7 17405 Yuba 25 yd. S of gravel bar along the Yuba River, 150 yd. W of S end of Parks Bar Bridge (Hwy. 20), 15 (air) mi. NE of Marysville. 66 Comment
  SEINET7072981  Clarkia purpurea subsp. quadrivulnera A. G. Vestal 1963-5-29 s.n. Yuba About 0.4 mile west of Erle Road on Hammonton-Smartville Road. UTM Zone 10, 638165mE, 4337165mN. Coordinate datum: NAD27). Comment
  UCD147083  Clarkia purpurea subsp. quadrivulnera Chuck Hughes 2013-5-2 368 Yuba Northwest margin of Camp Far West Reservoir. 93 Comment
  CAS-BOT-BC163417  Clarkia purpurea subsp. quadrivulnera Lillian S. Mott 1965-4-21 LM 6548 Yuba Hiway 20 to Marysville Comment
  UCD104972  Clarkia purpurea subsp. quadrivulnera Barbara Yungert 1974-5-9 142 Yuba Schubert project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC164773  Clarkia rhomboidea Barbara T. Keller 1975-6-10 s.n. Yuba Willow Glen Rd. from Stanfield Hill to Brownsville, 11.5 mi. north of junction with Marysville Rd. Comment
  CHSC70761  Clarkia stellata L. P. Janeway; Loren Gehrung, Karen Lee, Marcile Sigler, C. Sivil 1993-6-15 4384 Yuba 1.3 mi east of Woodleaf, 1.2 mi southwest of Clipper Mills; uppermost drainage of Slapjack Creek. 1043 Comment
  NY1085604  Clarkia stellata R. C. F. Bacigalupi 1927-7-2 1584 Yuba Highway to Downeville about 8 miles north east of Camptonville Comment
Read comments Nov 9 2011
  CAS-BOT-BC443757  Claytonia rubra subsp. rubra Alice Eastwood 1918-4-7 6801 Yuba Camptonville Comment
  UCD123625  Collinsia heterophylla Barbara Yungert 1974-5-9 101 Yuba northeast of Upper Schubert project area, Sierra Foothill Field Station. Comment
  POM161752  Collomia heterophylla R. C. Bacigalupi 1927-7-2 1582 Yuba Road to Downieville, 2 miles west of Camptonville Comment
Read comments Nov 9 2011
  UCR189626  Convolvulus arvensis George K. Helmkamp, E. A. Helmkamp 2007-8-29 12839 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 Comment
  SEINET7134343  Convolvulus arvensis J. Ridley 1959-4-19 21 Yuba 1 mile east of Smartville in open field on north side of highway 20 61 Comment
  JEPS115031  Conyza canadensis Lowell Ahart 2007-11-1 14531 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  CAS-BOT-BC288971  Conyza floribunda Lowell Ahart 1980-6-19 2392 Yuba Along La Porte Rd, near Rackerby 320 Comment
  CAS-BOT-BC209439  Cornus nuttallii Lloyd W. Swift 1932-5-12 57 Yuba Plumas National Forest. Clipper Mills 1066 Comment
  UC566181  Cornus nuttallii M. A. Elvin 1933-7-14 52 Yuba Greenville Smartsville Quad., Greenville 762 Comment
  CDA38547  Cornus nuttallii T. C. Fuller 1961-9-21 7028 Yuba Moonshine Ridge, ca. 5 mi. west of Camptonville. 0 Comment
  CAS-BOT-BC212156  Cornus sericea Beecher Crampton 1966-6-14 7739 Yuba 1 mile east of Brownsville, La Porte Road 731 Comment
  UC1330014  Cornus sericea subsp. sericea Beecher Crampton 1966-6-14 7739 Yuba 1 mi. e. Brownsville (La Porte Rd.) Comment
  CHSC90487  Crassula connata Lowell Ahart 2005-3-11 11607 Yuba Large rock outcrop, south slope, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 395 Comment
  CHSC90488  Crassula tillaea Lowell Ahart 2005-3-11 11597 Yuba On the west side of the poor dirt road, about 1/2 mile west of Marysville Road, about 1/4 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/4 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 344 Comment
  JEPS107407  Crassula tillaea Lowell Ahart 2005-3-11 11597 Yuba On W side of the poor dirt road, ca. 1/2 mi W of Marysville Rd, ca. 1/4 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/4 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 344 Comment
  UC1254613  Crucianella angustifolia Beecher Crampton 1967-5-17 7945 Yuba 0.5 mi w Timbuctoo Comment
  SEINET7042666  Crucianella angustifolia A. G. Vestal 1963-5-29 s.n. Yuba Along the road to Smartville, 0.4 mile southwest of road to Beale Airforce Base. Camp Far West quadrangle UTM Zone 10, 644119mE, 4329948mN. Comment
  UCD121546  Crucianella angustifolia Beecher Crampton 1957-6-5 4163 Yuba Town of Timbuctoo, across from old Stewart and Brothers and Wells Fargo Store. Comment
  JEPS102534  Crypsis schoenoides Lowell Ahart 2001-11-2 9405 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  CHSC46747  Cryptantha affinis Lowell Ahart 1980-8-12 2544 Yuba Large gravel bar that is formed by a debris dam across Slate Creek, west of Gold Run Creek, east of Onion Creek, about 7 air miles south of La Porte. 1158 Comment
  CHSC108223  Cryptantha flaccida Lowell Ahart 2011-6-7 17386 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS118091  Cryptantha flaccida Lowell Ahart 2011-6-7 17386 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CAS-BOT-BC80752  Cupressus macnabiana C. B. Wolf; E. R. Johnson 1934-10-4 6156 Yuba Sierra Nevada Foothills, N. side Indiana Creek, 1 7/10 mi. W. of Indiana Ranch 548 Comment
  CHSC43501  Cupressus macnabiana Lowell Ahart 1969-1-25 24 Yuba Near the Brownsville dump, about 2 miles west of Brownsville. 609 Comment
  UCD110852  Cupressus macnabiana Christopher Mallek 2008-1 IC- 1 Yuba Indiana Creek. 617 Comment
  NY16725  Cupressus macnabiana C. B. Wolf 1934-10-3 6151 Yuba 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
  SEINET10531481  Cupressus macnabiana Carl B. Wolf, E. R. Johnson 1934-10-3 Wolf 2116 Yuba Sierra Nevada Foothills, Texas Hill, approx. 2 mi W of Dobbins. Upper sonoran:- Yellow Pines. Sun. Sterile rocky soil (granitic). 550 Comment
  SEINET11735639  Cupressus macnabiana Unknown 1976-1 1000 Yuba 1 mi N of Oregon House 457 Comment
  UCD54458  Cuscuta campestris Leonard Buschmann 1973-6-28 s.n. Yuba Yuba Co. Virginia Rd. and Stan Dr. Comment
  JEPS113722  Cuscuta howelliana Lowell Ahart 2007-5-12 13789 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UCD126298  Cuscuta howelliana F. T. Griggs 1978-5-19 s.n. Yuba near western margin of Beale Air Force Base, along Erle Road, 3.5 miles east of Lindhurst Road. Comment
  CDA33432  Cuscuta japonica Todd Quist & Steve Andersen 2008-12-1 PDR# 1295535 Yuba Marysville; 5667 Tish Circle. 0 Comment
  CHSC97730  Cuscuta pentagona Lowell Ahart 2007-11-8 14578 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  JEPS115049  Cuscuta pentagona Lowell Ahart 2007-11-8 14578 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan 73 Comment
  CHSC47674  Cuscuta subinclusa Lowell Ahart 1989-9-3 6386 Yuba On the west side of Ponderosa Way, west of the Brownsville Dump, about 1 mile south-west of Brownsville. 609 Comment
  CAS-BOT-BC190396  Cynosurus echinatus Barbara T. Keller 1975-6-10 1512 Yuba Willow Glen Road from Stanfield Hill to Brownsville, about 11.5 miles north of junction of Willow Glen Road and Marysville Road. Comment
  JEPS118323  Cynosurus echinatus Lowell Ahart 2011-6-7 17429 Yuba East of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  POM319499  Cynosurus echinatus Patricia Wilder 1971-6-23 5200 Yuba West outskirts of the town of Challenge in a vacant lot; 20 miles east of Oroville. 762 Comment
  UCD60143  Cynosurus echinatus Barbara Yungert 1974-5-13 G- 13 Yuba South of road, 100 yards north of picnic area, Sierra Foothill Field Station. Comment
  JEPS94352  Cyperus bipartitus Lowell Ahart 1997-8-13 7865 Yuba about 2 1/4 air mi e of Browns Valley (on s side of Scott Forbes Road, 1/4 mi e of intersection of Scott Forbes Road and Peoria Road, just e of Gray Drive); Scott Forbes Road 91 Comment
  CHSC76298  Cyperus difformis Lowell Ahart 1999-9-17 8238 Yuba Rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  JEPS94414  Cyperus difformis Lowell Ahart 1997-8-13 7864 Yuba about 2 1/4 air mi e of Browns Valley (on s side of Scott Forbes Road, 1/4 mi e of intersection of Scott Forbes Road and Peoria Road, just e of Gray Drive); Scott Forbes Road 91 Comment
  SEINET9756953 Image available Cyperus difformis Richard Carter 2006-7-31 Yuba 12.5 mi ENE Marysville jct. Hwy CA 20 and Hwy CA 70, by Hwy CA 20 Comment
  CHSC69456  Cyperus eragrostis Lowell Ahart 1997-8-13 7863 Yuba On the south side of Scott Forbes Road, 1/4 mile east of the intersection of Scott Forbes Road and Peoria Road, just east of Gray Drive, about 2 1/4 miles (air) east of Browns Valley. 91 Comment
  CHSC69457  Cyperus eragrostis Lowell Ahart 1997-8-30 7879 Yuba On the west side of the dirt road, near a road culvert, about one mile (air) south of Woodleaf. 944 Comment
  CHSC96938  Cyperus eragrostis Lowell Ahart 2007-6-30 14229 Yuba Sides of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  JEPS95960  Cyperus eragrostis Lowell Ahart 1999-9-5 8196 Yuba on the disturbed area on the south side of Woodruff Lane; just west of Kimball Lane; about 5 miles (air) northeast of Marysville 24 Comment
  RSA726803  Cyperus eragrostis L. Ahart 2007-6-30 14229 Yuba About 13 miles (air) northeast of Marysville. 30 Comment
  SEINET10585760  Cyperus eragrostis Lowell Ahart 2007-11-1 Ahart 14540 Yuba T18N, R8E, southwest 1/4 Section 3. On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  SEINET9772565 Image available Cyperus eragrostis Richard Carter 2006-7-31 Yuba 12.5 mi ENE Marysville jct. Hwy CA 20 and Hwy CA 70, by Hwy CA 20 Comment
  CHSC83031  Cyperus erythrorhizos Lowell Ahart 2002-10-8 9945 Yuba On the edge of a pond, about 100 yards north of Long Ravine Road, about 300 yards southeast of the intersection of Camp Far West Road and Long Ravine Road there is a poor gate on the north side of the road, north of Camp Far West Reservoir. 121 Comment
  JEPS102713  Cyperus erythrorhizos Lowell Ahart 2001-11-2 9404 Yuba Camp Far West Reservoir, about 1/4 mile NEaa of the dam, about 9 miles (air) SE of Wheatland. 83 Comment
  CDA2590  Cyperus esculentus L. Ahart 1999-9-5 8195 Yuba On the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. Comment
  CHSC76113  Cyperus esculentus Lowell Ahart 1999-9-5 8195 Yuba On the disturbed area on the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 Comment
  CHSC76114  Cyperus iria Lowell Ahart 1999-9-5 8197 Yuba Disturbed area on the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 Comment
  SEINET4896991  Cyperus iria L. Ahart 1999-9-5 8197 Yuba 5 miles NE of Marysville. Legal: T16N R4E Comment
  CHSC76302  Cyperus niger Lowell Ahart 1999-9-17 8256 Yuba On the edge of a drain ditch, Sam Shintaffer Farm, on the west side of Kimball Lane, near the intersection of Kimball Lane and Hallweed Blvd., about 3/4 mile south of Sam Shnitaffer's rice dryer, about 4 1/4 miles (air) northeast of Marysville. 22 Comment
  CDA38966  Cyperus niger L. Ahart 1999-9-17 8256 Yuba Sam Shintaffer Farm, on the west side of Kimball Lane, near the intersection of Kimball Lane and Hallwood Boulevard, about 3/4 mile south of Sam Shintaffer s rice dryer, about 4 1/4 miles (air) northeast of Marysville. Comment
  SEINET13709327  Cyperus niger Lowell William Ahart, Lowell William Ahart 1999-1 8256 Yuba Cyperus, 4.25 Air Mi NE Marysville Comment
  CAS-BOT-BC113999  Cyperus rotundus Lowell Ahart 1978-10-28 s.n. Yuba H & 13th Streets, Marysville. Comment
  NY663864  Cyperus rotundus L. Ahart 1978-10-28 s.n. Yuba H & 13th Streets, Marysville Comment
  CHSC41901  Cytisus scoparius Lowell Ahart 1973-5-6 219 Yuba About 1 mile north of Challenge. 762 Comment
  JEPS100265  Cytisus scoparius Dean W. Taylor 2001-5-9 17638 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  SEINET5327050  Cytisus scoparius M. J. Williams 1967-5-14 s.n. Yuba Camptonville 914 Comment
  UCR206946  Dactylis glomerata George K. Helmkamp, E. A. Helmkamp 2009-5-28 14834 Yuba Sierra Nevada Mountains Foothills, along CA-49, 2.2 miles north of the Camptonville exit 811 Comment
  RSA790265  Damasonium californicum James R. Shevock, Robert Holland 1985-5-6 11132 Yuba Beale Air Force Base E of Marysville. Pools adjacent to runway. 40 Comment
  CDA31645  Danthonia californica D. Wilson 2008-6-3 PDR# 147085 Yuba Oregon House, 9448 Rice s Texas Hill Rd. near Tehama Way. 0 Comment
  CDA31642  Danthonia californica var. americana T. C. Fuller 1971-6-13 19889 Yuba East side of Lake Francis, Lake Francis Rd., 1 mile southeast of Dobbins. 0 Comment
  CHSC95029  Danthonia californica var. americana L. P. Janeway 2006-5-24 8615 Yuba Northern High Sierra Nevada Foothills. Along Ponderosa Way 1.3 road km southeast of Robinson Mill Road; 1.3 air km southeast of Robinson Mills and Forbestown Road. Moderate slope, south-facing. 771 Comment
  JEPS104247  Danthonia californica var. americana Lowell Ahart 2003-7-6 10368 Yuba In meadow, e of the power line, ca 60 yd nw of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  UCD60681  Danthonia californica var. americana Beecher Crampton 1966-6-14 7763 Yuba 1 mile west of Brownsville. Comment
  UCD33119  Danthonia unispicata Beecher Crampton 1966-6-14 7764 Yuba Yuba County, 1 mile east of Brownsville on La Porte road, near Brownsville Fire Station, CA div. of Forestry. Comment
  UCD61333  Danthonia unispicata W. R. Powell 1966-5-18 1274 Yuba 3/4 miles east of Lake Mildred, 1 1/2 miles NNE of Oregon House. 487 Comment
  JEPS113454  Daucus carota Lowell Ahart 2007-6-22 14213 Yuba About 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 29 Comment
  UCD33658  Daucus carota Beecher Crampton 1972-6-20 8817 Yuba 2 miles west of Sicard Flat. Comment
  JEPS118079  Daucus pusillus Lowell Ahart 2011-6-7 17370 Yuba Grassy road margin, about 50 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCD127493  Daucus pusillus Barbara Yungert 1974-5-13 148 Yuba north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UC635338  Delphinium gracilentum H. L. Mason 1927-5-11 3732 Yuba near Dobbins 457 Comment
  CAS-BOT-BC8792  Delphinium gracilentum B. T. Keller 1975-6-10 1518 Yuba Willow Glen Road, from Stanfield Hill to Brownsville, 11.5 mi. N of Junct. of Willow Glen Road & Marysville Road Comment
  HSC47883  Delphinium hansenii H. Lewis, Carl Epling 1941-5-26 Yuba Smartville Comment
  SEINET5338025  Delphinium hansenii C. Aarstad 1979-4-28 s.n. Yuba At junction of Rt. 20 and N. fork of Yuba River in Browns Valley 183 Comment
  UCD95782  Delphinium hansenii Barbara Yungert 1974-5-30 187 Yuba South of road, SC-13 project area, Sierra Foothill Field Station. Comment
  UC1031402  Delphinium hansenii subsp. hansenii H. Lewis and C. Epling 1941-5-26 Yuba Smartville Comment
  CAS-BOT-BC10237  Delphinium hesperium R. K. Wellman 1981-5-17 025 Yuba Junction of county roads E-20 and E-21 152 Comment
  UCD96546  Delphinium patens W. R. Powell 1968-5-15 1497 Yuba On Fountain House Road, 2 miles northeast of Dobbins. 792 Comment
  UCD96557  Delphinium patens Barbara Yungert 1974-4-6 54 Yuba Near path behind U.S.G.S. Stream Measuring Station, below Englebright Dam, Sierra Foothill Field Station. 152 Comment
  CAS-BOT-BC116482  Delphinium patens subsp. patens Ella D. Cantelow 1968-5-6 s.n. Yuba Near Gales Orchard ca. 6 miles east of Camptonville 1249 Comment
  CAS-BOT-BC122011  Delphinium variegatum Gordon H. True 1963-4-17 1159 Yuba About 5 miles south of Smartville, on Beale Air Force Base road 121 Comment
  CAS-BOT-BC16949  Delphinium variegatum subsp. variegatum P. H. Raven 1953-5-9 5484 Yuba 3.7 miles from Browns Valley on road to Challenge Comment
  UCD62773  Deschampsia danthonioides Beecher Crampton 1963-5-11 7322 Yuba 2.5 miles southwest of Brown's Valley. Comment
  CHSC44563  Deschampsia elongata Lowell Ahart 1979-6-25 1940 Yuba In a logged over area, about 1 mile south of Challenge. 640 Comment
  CAS-BOT-BC43427  Descurainia sophia Lowell Ahart 2007-5-12 13782 Yuba Along road to the power towers, about 20 yards south of the first power tower, about 50 yards north of Fruitland Road. 35 Comment
  CDA31979  Descurainia sophia L. Ahart 2007-5-12 13782 Yuba Along road to the power towers, about 20 yards south of the first power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. Comment
  JEPS113413  Descurainia sophia Lowell Ahart 2007-5-12 13782 Yuba Dry red bare soil, east of the dirt road, along road to the power towers, about 20 yards south of the first power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  RSA726956  Descurainia sophia L. Ahart 2007-5-12 13782 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  UC634899  Dicentra formosa Herbert L. Mason 1927-5-11 3734 Yuba near Bullards Bar; Yuba River Canyon 609 Comment
  UCR191122  Dicentra formosa George K. Helmkamp, E. A. Helmkamp 2007-8-29 12829 Yuba Northern Sierra Nevada Mountains Foothills, Mountain House Road 0.6 mile west of the Sierra Co. line; Sleighville area beside Willow Creek 1021 Comment
  CAS-BOT-BC402557  Dicentra pauciflora M. Boone 1981-5-15 043 Yuba Found highway 49 2 miles N. of Downyville [Downieville] 1219 Comment
  JEPS95481  Dichanthelium acuminatum subsp. fasciculatum Lowell Ahart 1994-6-5 7308 Yuba 3 air miles E of Forbestown (E side of Forbestown Road) 853 Comment
  UCD112037  Dichelostemma capitatum Christopher Mallek 2008-5-5 IC3- 18 Yuba Indiana Creek. 617 Comment
  CAS-BOT-BC483644  Dichelostemma capitatum Peter H. Raven 1953-5-9 5469 Yuba 1 mile from Brownsville on road to Challenge Comment
  UCD139422  Dichelostemma capitatum Craig Martz; Richard Sannar 1982-3-25 42 Yuba along both sides of Hammonton-Smartville Road, 1 mile east of north entrance to Beale AFB. 45 Comment
  CHSC23169  Dichelostemma capitatum subsp. capitatum Robert A. Schlising; G. Keator 1963-4-8 2496 Yuba Along Hwy 20, near Brownsville, 29.4 mi W of Nevada City. Comment
  UCD139439  Dichelostemma capitatum subsp. capitatum Barbara Yungert 1974-4-8 7 Yuba west end of Forbes Road 3, Sierra Foothill Field Station. Comment
  UCD148231  Dichelostemma lacuna-vernalis Robert E. Preston 2013-3-16 2892 Yuba Along Hammonton-Smartville Rd, 2.4 mi E of Doolittle Drive. 63 Comment
  CHSC108193  Dichelostemma multiflorum Lowell Ahart 2011-6-7 17420 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS118044  Dichelostemma multiflorum Lowell Ahart 2011-6-7 17420 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  SBBG34511  Dichelostemma multiflorum H. and M. Dearing 1939-5-6 3281 Yuba Browns Valley Comment
  SEINET7072709  Dichelostemma multiflorum A. G. Vestal 1963-5-7 s.n. Yuba About 4.7 miles northeast of Honcut on Dustone Drive and about 5.2 miles southwest of Bangor. Coordinate Datum WGS84/NAD83. (UTM Zone 10, 632602E, 4361139mN. Coordinate datum: NAD 27) Comment
  SEINET7072988  Dichelostemma multiflorum A. G. Vestal 1963-5-30 s.n. Yuba Dry Creek at junction with Peoria Road north of Sicard. Coordinate datum WGS84/NAD83. (39? deg. 14' 2" North Latitude, -121? deg. 20' 47" West Longitude. UTM Zone 10, 642723mE, 4343827mN. Coordinate datum: NAD27). Comment
  UC1133992  Dichelostemma multiflorum H. S. Yates 1933-5-23 3626 Yuba 2 mi w Cabbage Patch; Smartsville Quad. 91 Comment
  UCD139261  Dichelostemma multiflorum Barbara Yungert 1974-4-29 91 Yuba North of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UCR231312  Dichelostemma multiflorum George K. Helmkamp, E. A. Helmkamp 2011-5-6 17189 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.9 mile west of the junction at Camp Far West Reservoir 65 Comment
  CAS-BOT-BC500917  Dichelostemma multiflorum Alice Eastwood 1921-5-22 10522 Yuba Los Vergils Comment
  SEINET7042609  Dichelostemma multiflorum A. G. Vestal 1963-5-29 s.n. Yuba Olivehurst-Smartville Road [presently Hammonton- Smartville Road]. 0.4 mile west of road south to Beale Air Force Base [Smartville Road]. Smartville quadrangle UTM Zone 10, 646242mE, 4339869mN. Comment
  UCD113420  Dichelostemma multiflorum Barbara Yungert 1974-5-3 108 Yuba West side of road, near cattle guard and U.C. sign, west of station, Sierra Foothill Field Station. Comment
  UCD139277  Dichelostemma volubile Barbara Yungert 1974-4-22 77 Yuba Along four wheel drive jeep road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC501114  Dichelostemma volubile Alice Eastwood 1921-5-22 10521 Yuba Los Vergils Comment
  RSA21179  Dichelostemma volubile Carl B. Wolf 1937-6-11 8778 Yuba Sierra Nevada foothills, 1.6 miles NW of Stanfield Hill, along a fork of So Honcut Creek. 305 Comment
  CDA42982  Digitaria sanguinalis L. Ahart 2013-11-3 19302 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. Comment
  CHSC69460  Digitaria sanguinalis Lowell Ahart 1997-8-13 7868 Yuba On the south side of Scott Forbes Road, 1/4 mile east of the intersection of Scott Forbes Road and Peoria Road, just of Gray Drive, about 2 1/4 miles (air) east of Browns Valley. 91 Comment
  JEPS94351  Digitaria sanguinalis Lowell Ahart 1997-8-13 7868 Yuba about 2 1/4 air mi e of Browns Valley (on s side of Scott Forbes Road, 1/4 mi e of intersection of Scott Forbes Road and Peoria Road, just e of Gray Drive); Scott Forbes Road 91 Comment
  UCD64095  Digitaria sanguinalis Beecher Crampton 1964-10-22 7224 Yuba 3 miles east of Brown's Valley, Dry Creek. Comment
  CAS-BOT-BC151759  Diplacus kelloggii Gordon H. True 1963-5-2 1209 Yuba Oregon Creek at jct. with middle Yuba River, at Freeman's Crossing - Sierra Nevada 457 Comment
  CAS-BOT-BC151760  Diplacus kelloggii Daniel Campbell 1974-5-23 s.n. Yuba 1/2 mile south of Camptonville on Solidarity Mining Claim - Sierra Nevada 701 Comment
  CAS-BOT-BC151761  Diplacus kelloggii R. C. Barneby; John Thomas Howell 1954-5-12 11475 Yuba 4 miles s. of Camptonville 579 Comment
  CHSC97700  Dittrichia graveolens Lowell Ahart 2007-11-1 14547 Yuba On the north side of Loma Rica Road, east of the Fire Station, about 3/4 mile east of Loma Rica. 146 Comment
  JEPS120505  Dittrichia graveolens M. S. Williams, T. M. Hanson 2012-10-31 Yuba Northern High Sierra Nevada. Plumas National Forest; approximately 1.3 air miles northeast of Challenge (1.7 road miles). Comment
  SEINET8561734  Dodecatheon hansenii A. Tiehm 1975-1 653 Yuba U.C. Sierra Foothill Field Station. 396 Comment
  CHSC1397  Dodecatheon hendersonii V. Holt 1946-4-16 Yuba Smartsville. 313 Comment
  SJSU8489  Dodecatheon hendersonii J. B. Willis Jr. 1969-4-19 32 Yuba edge of Marysville Rd near Oregon House Post Office, 7.5 mi W of Dobbins Comment
  UCD118970  Dodecatheon hendersonii Barbara Yungert 1974-4-16 49 Yuba Near wire gate, Koch Livestock Free Area, Sierra Foothill Field Station. Comment
  RSA21666  Downingia bicornuta C. B. Wolf 1937-5-18 8736 Yuba SacramenoValley, 2 mi S of Marysville. 18 Comment
  JEPS108500  Downingia bicornuta var. bicornuta Lisa Schultheis 1996-5-23 304 -96 Yuba Beale Air Force Base. Comment
  JEPS113471  Downingia ornatissima var. ornatissima Lowell Ahart 2007-5-12 13785 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS108494  Downingia ornatissima var. ornatissima Lisa Schultheis 1996-5-23 305 -95 Yuba Beale Air Force Base. Comment
  CHSC84982  Draperia systyla Lowell Ahart 2003-10-11 10625 Yuba On the east margins of a gravel road to the Rose Ranch, about 100 yards west of the paved road to Scales, about 1/2 mile south of the Rose Ranch, about 5 miles (air) northeast of Strawberry Valley, about 7 miles (air) southwest of La Porte. 1219 Comment
  UCD113139  Drymocallis glandulosa var. glandulosa Kathleen Keliher 1975-5-30 117 Yuba Near New York Flat Road, ca. 3 miles from Willow Glen Road. 762 Comment
  CHSC113186  Dysphania pumilio Lowell Ahart 2013-11-30 19306 Yuba On north side of Dry Creek, below the high water line of Collins Lake, about 300 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 354 Comment
  HSC9654  Echinochloa crus-galli T. F. Newman 1965-8-22 6564 Yuba Carnes Ranch, 10 mi. N of Marysville Comment
  RSA749526  Echinochloa crus-galli George K. Helmkamp, E. A. Helmkamp 2008-10-6 14208 Yuba Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  UCD60822  Echinochloa crus-galli Beecher Crampton 1963-9-9 6878 Yuba 2.5 miles n.n.w. Smartsville, 5 miles east Brown's Valley. U.C. Sierra Foothill Field Station. Comment
  UCD67042  Echinochloa crus-galli G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12840 Yuba Northern Sierra Nevada Mountains: along Hwy. CA-49, 0.5 mile south of Camptonville. 817 Comment
  CAS-BOT-BC197248  Echinochloa muricata A. Starker Leopold 1956-7-18 s.n. Yuba 3 miles n.w. of Rio Oso Post Office Comment
  JEPS124313  Elatine Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20648 Yuba Below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CHSC46020  Elatine chilensis Lowell Ahart 1978-4-14 1637 Yuba Rice field west of Kimball Lane, on the property of Shintaffer Farms, Inc., about 2 miles north-east of Marysville. 30 Comment
  UCR169022  Eleocharis David Charlton 2005-5-16 8018 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  CAS-BOT-BC113669  Eleocharis Beecher Crampton 1966-6-14 7751 Yuba 1 mi E of Brownsville, La Porte Road. Comment
  SEINET7583427 Image available Eleocharis acicularis Lowell Ahart 2000-6-11 8471 Yuba East side of small wash, west of Smartville Road, about 1/8 mile southwest of the intersection of Waldo Road and Smartville Road, about 8 miles (air) south of Smartville. 99 Comment
  CHSC78179  Eleocharis acicularis var. occidentalis Lowell Ahart 2000-6-11 8471 Yuba On the east side of a small wash, west of Smartville Road, about 1/8 mile southwest of the intersection of Waldo Road and Smartville Road, about 8 miles (air) south of Smartville. 99 Comment
  CHSC45167  Eleocharis bella Lowell Ahart 1980-6-19 2403 Yuba Near a small seep, near a dirt road, about 3 miles south-east of Challenge. 731 Comment
  CHSC78288  Eleocharis bella Lowell Ahart 2000-6-23 8507 Yuba On a dirt road, about 100 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  CHSC110342  Eleocharis bolanderi L. P. Janeway 2013-6-7 11133 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, one of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. 815 Comment
  CHSC78293  Eleocharis bolanderi Lowell Ahart 2000-6-19 8494 Yuba Meadow, about 80 yards north of New York Flat Road, about 1 1/4 miles (air) northeast of Brownsville, about 2 1/4 miles (air) west of Challenge. 731 Comment
  CHSC84466  Eleocharis bolanderi Lowell Ahart 2003-7-6 10362 Yuba In meadow, east of the power line, about 60 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  JEPS95538  Eleocharis bolanderi Lowell Ahart 1994-6-27 7375 Yuba 4 mi NE of Strawberry Valley (center of Schwartz Meadow, E side of La Porte Road) 1219 Comment
  JEPS98335  Eleocharis bolanderi Lowell Ahart 2000-7-13 8590 Yuba 2 1/2 air miles SE of Camptonville (S side of Ridge Road, 1/4 mi W of Our House, 2 air mi E of Celestial Valley) 975 Comment
  JEPS98365  Eleocharis bolanderi Lowell Ahart 2000-6-23 8505 Yuba 3 mi NE of Strawberry Valley (bog in small meadow, 80 yds E of the meadow along La Porte Road,100 yds N of Scales Road) 1219 Comment
  CHSC83029  Eleocharis engelmannii Lowell Ahart 2002-10-9 9950 Yuba Area south of a spring, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CAS-BOT-BC113345  Eleocharis engelmannii John Thomas Howell; Gordon H. True 1969-6-24 5098 Yuba Artificial lake ca. 1 mi NW of Spenceville (site) on Cox Creek. 152 Comment
  CHSC96844  Eleocharis macrostachya Lowell Ahart 2007-6-30 14235 Yuba West side of a new ditch, near and west of a new road pad, about 350 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS98567  Eleocharis macrostachya Lowell Ahart 2000-6-11 8461 Yuba 6 mi (air) S of Smartville (on bottom of a deep wash, a N branch of Dry Creek, 100 yds W of Waldo Rd and Smartville Rd) 146 Comment
  UCR231322  Eleocharis macrostachya George K. Helmkamp, E. A. Helmkamp 2011-5-6 17206 Yuba East edge of Sacramento Valley, junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg. ) of Wheatland 56 Comment
  CAS-BOT-BC113034  Eleocharis macrostachya Gordon H. True; John Thomas Howell 1969-6-24 5099 Yuba Artificial lake ca. 1 mi. NW of Spenceville (site) on Cox Creek. 152 Comment
  CAS-BOT-BC113035  Eleocharis macrostachya W. V. Middlekauff 1954-9-11 s.n. Yuba 3 miles NW of Rio Oso Post Office. Comment
  CHSC116298  Eleocharis obtusa Lowell Ahart 2015-11-19 20689 Yuba 100 yards or more north of spillway area, below high water line, west side of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  CHSC83048  Eleocharis obtusa Lowell Ahart 2002-10-9 9973 Yuba Along Lost Creek, below the high water line of Sly Creek Reservoir, about 50 yards southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  UCR118905  Eleocharis obtusa Beecher Crampton 1966-6-14 7757 Yuba Central Sierra Nevada foothills, 1 Mile east of Brownsville on La Porte Road. 732 Comment
  CHSC78195  Eleocharis pachycarpa Lowell Ahart 2000-5-25 8400 Yuba On the sidesof a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  CHSC83068  Eleocharis pachycarpa Lowell Ahart 2002-10-9 9949 Yuba Area south of a spring, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS98437  Eleocharis pachycarpa Lowell Ahart 2000-5-25 8400 Yuba 6 air mi S of Smartville (sides of a deep wash, a N branch of Dry Creek, 2 mi N of intersection of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  JEPS98594  Eleocharis pachycarpa Lowell Ahart 2000-6-19 8490 Yuba Along a S branch of Dry Creek, on the S side of Marysville Road, ca 1/4 mile W of the intersection of Marysville Road and Frenchtown Road, W of Oregon House, ca 2 miles E of Collins Lake. 457 Comment
  SD131013  Eleocharis pachycarpa Gordon H. True, John Thomas Howell 1970-5-29 5422 Yuba Artificial lake ca. 1 mile northwest of Spenceville (site) on Cox Creek. In wet soul and shallow water at edge of lake. 152 Comment
  CAS-BOT-BC113119  Eleocharis pachycarpa Gordon H. True; John Thomas Howell 1970-5-29 5422 Yuba Artificial lake ca. 1 mi NW of Spenceville (site) on Cox Creek. 152 Comment
  CDA2609  Eleocharis pachycarpa L. Ahart 2000-6-19 8490 Yuba Along a south branch of Dry Creek, on the south side of Marysville Road, about 1/4 mile west of the intersection of Marysville Road and Frenchtown Road, west of Oregon House, about 2 miles east of Collins Lake. Comment
  HSC97768  Eleocharis pachycarpa L. Ahart 2000-6-19 8490 Yuba S branch of Dry Creek, S side of Marysville Rd., 1/4 mi. W of intersection of Marysville Rd. and Frenchtown Rd., W of Oregon House, 2 mi. E of Collins Lake 457 Comment
  RSA0012078  Eleocharis palustris George K. Helmkamp, E. A. Helmkamp 2011-5-6 17206 Yuba junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg ) of Wheatland. 56 Comment
  UCD84798  Eleocharis quadrangulata Collector Unknown 2010-7-1 s.n. Yuba Marysville area. Comment
  CHSC78313  Eleocharis quinqueflora Lowell Ahart 2000-7-13 8578 Yuba In a small meadowl, on the south side of Ridge Road, about 1/4 mile west of Our House, about 2 miles (air) east of Celestial Valley, about 2 1/2 miles (air) southeast of Camptonville. 975 Comment
  JEPS98439  Eleocharis quinqueflora Lowell Ahart 2000-5-25 8398 Yuba 6 air mi S of Smartville (sides of a deep wash, a N branch of Dry Creek, 2 mi N of intersection of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  CDA38986  Eleocharis quinqueflora L. Ahart 2000-5-25 8398 Yuba A north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. Comment
  RSA716568  Eleocharis quinqueflora L. Ahart 2000-6-23 8506 Yuba About 80 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley 1220 Comment
  SEINET7587004 Image available Eleocharis quinqueflora Lowell Ahart 2000-6-19 8493 Yuba About 100 yards north of New York Flat Road, about 1 1/4 miles (air) northeast of Brownsville, about 2 1/4 miles (air) west of Challenge. 732 Comment
  SEINET7587008 Image available Eleocharis quinqueflora Lowell Ahart 2000-6-23 8506 Yuba About 80 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  CHSC116116  Eleocharis radicans Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20641 Yuba On the bottom of the outflow area at the bottom of Lake Francis Dam, Lake Francis, about 1-1/2 miles south of Dobbins. 479 Comment
  JEPS124319  Eleocharis radicans Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20641 Yuba Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CDA14187  Elodea canadensis E. Finley 1998-4-8 s.n. Yuba Sierra Nevada; Yuba Water District Canal at Blacktop Rd. 0 Comment
  UCD62803  Elymus X hansenii Beecher Crampton 1957-6-5 4151 Yuba 1/2 mile W of Oregon House Post Office. Comment
  CHSC107313  Elymus caput-medusae L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10370 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. 750 Comment
  UCR169018  Elymus caput-medusae David Charlton 2005-5-16 8014 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  UCD147098  Elymus elymoides var. elymoides Chuck Hughes 2013-5-16 382 Yuba Near margin of Camp Far West Reservoir. 95 Comment
  CDA14561  Elymus glaucus G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3038 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  UCD61787  Elymus glaucus Barbara Yungert 1974-5-9 G- 10 Yuba Sierra Foothill Field Station. W of road to Englebright Reservoir. Comment
  UCD61799  Elymus glaucus Beecher Crampton 1971-6-18 8733 Yuba Sierra Foothill Range Field Station. Ca. 6 miles E of Browns Valley. Comment
  UCD61859  Elymus glaucus Beecher Crampton 1965-6-17 7375 Yuba Ca. 3/4 mile north of Stanfield Hill, Willow Glen Creek. 396 Comment
  UCD62497  Elymus multisetus Beecher Crampton 1966-6-14 7762 Yuba 1 mile west of Brownsville. Comment
  CHSC44533  Elymus stebbinsii subsp. septentrionalis Lowell Ahart 1979-6-25 1946 Yuba North of the dirt road, about 2 miles east of Challenge. 640 Comment
  SBBG121208  Epilobium L. Ahart 2007-5-12 13800 Yuba ca. 30 feet E of a culvert, ca. 50 yards N of the second power tower, ca. 400 yards N of Fruitland Rd, ca. 13 m NE of Marysville 28 Comment
  CHSC69426  Epilobium brachycarpum Lowell Ahart 1997-8-30 7876 Yuba On the west side of the dirt road, in a clear cut, Peterson Ridge Road, about 3 miles (air) east of Challenge. 762 Comment
  CHSC76285  Epilobium brachycarpum Lowell Ahart 1999-9-17 8255 Yuba On the edge of a drain ditch, San Shintaffer Farm, on the west side of Kimball Lane, near the intersection of Kimball Lane and Hallwood Blvd., about 3/4 mile south of Sam Shintaffer's rice dryer, about 4 1/4 miles (air) northeast of Marysville. 22 Comment
  CHSC83036  Epilobium brachycarpum Lowell Ahart 2002-10-9 9956 Yuba Along a small stream, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  UCD105307  Epilobium brachycarpum G. K. Helmkamp; E. A. Helmkamp 2006-10-10 11529 Yuba Northern Sierra Nevada Mountains Foothills. Along Hwy CA-49 just N of the Nevada County line at the Middle Yuba River bridge. 451 Comment
  UCR189621  Epilobium brachycarpum George K. Helmkamp, E. A. Helmkamp 2007-8-29 12843 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 1.2 miles southwest of Camptonville 701 Comment
  CHSC96939  Epilobium campestre Lowell Ahart 2007-6-30 14226 Yuba Bottom of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  JEPS104040  Epilobium ciliatum subsp. ciliatum Lowell Ahart 2003-7-2 10349 Yuba Seep on the e side of Fountain Hill Rd, ca 3 mi south of Oregon Hill Rd, ca 1/2 mi (air) n of Fountain House Hill, ca 3 mi (air) ne of Dobbins. 841 Comment
  JEPS43829  Epilobium ciliatum subsp. ciliatum W. L. Jepson 1934-7-29 16754 Yuba Marysville Comment
  CHSC73421  Epilobium ciliatum subsp. glandulosum B. Castro; L. Gehrung 1995-8-9 600 Yuba Fish Mdw. Ca 5 air mi NE of Strawberry Valley, and ca 1.5 mi E of Slate Ck. Ini meadow on unnamed stream flowing S into Canyon Ck, ca 500 ft W of USFS Rd 20N35 via unnamed dirt rd. In lower end of meadow near stream channel. 1249 Comment
  CHSC83069  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2002-10-9 9957 Yuba Along Lost Creek, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CHSC96843  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2007-6-30 14236 A Yuba West side of a new ditch, near and west of a new road pad, about 350 yards west of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC97135  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2007-6-30 14236 Yuba Near and west of new road pad, about 350 yards west of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113482  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2007-6-30 14236 Yuba Near and west of new road pad, about 350 yards west of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC84172  Epilobium densiflorum Lowell Ahart 2003-7-17 10413 Yuba On the sides of a stream, on the west side of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 129 Comment
  HSC99266  Epilobium densiflorum L. Ahart 2003-7-17 10413 Yuba W side of Smartville Rd., about 2 mi. N of the intersection of Waldo Rd. and Smartville Rd., about 6 mi. S of Smartville 130 Comment
  JEPS104592  Epilobium densiflorum Lowell Ahart 2003-7-17 10413 Yuba On the sides of a stream, on the w side of Smartville Rd, ca 2 mi n of the intersection of Waldo Rd and Smartville Rd, ca 6 mi (air) south of Smartville. 129 Comment
  JEPS38236  Epilobium densiflorum W. L. Jepson 1934-7-29 16764 Yuba Smartsville Comment
  UCD106520  Epilobium minutum Barbara Yungert 1975-4-28 69 Yuba Sierra Foothill Field Station. 100 meters E of central picnic area, 60 meters from Yuba River, H 8-11 project area. 152 Comment
  CAS-BOT-BC165951  Epilobium torreyi Lowell Ahart 2007-5-12 13800 Yuba About 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  HSC100775  Epilobium torreyi Lowell Ahart 2007-5-12 13800 Yuba 13 (air) mi. NE of Marysville, ~400 yd. N of Fruitland Rd., ~50 yd. N of the second power tower, ~30 ft. E of a culvert. 28 Comment
  SEINET7072984 Image available Epilobium torreyi A. G. Vestal 1963-5-29 s.n. Yuba About 0.4 mile west of Erle Road on Hammonton-Smartville Road. UTM Zone 10, 638165mE, 4337165mN. Coordinate datum: NAD27). Comment
  CHSC43345  Equisetum hyemale subsp. affine Lowell Ahart 1977-4-17 1313 Yuba Along a small branch of Dry Creek, about 1 mile south of Challenge, about 1 1/2 miles west of Pike County Peak. 548 Comment
  CAS-BOT-BC57147  Equisetum hyemale subsp. affine Lowell Ahart 1977-4-17 s.n. Yuba About 3 miles south of Challenge 700 Comment
  UCD135395  Equisetum hyemale subsp. affine Kathleen Keliher 1975-4-30 79 Yuba Ca. 200 feet from Marysville Road near Oregon Creek. 762 Comment
  CHSC69462  Eragrostis mexicana subsp. virescens Lowell Ahart 1997-8-13 7866 Yuba On th south side of Scott Forbes Road, 1/4 mile east of the intersection of Scott Forbes Road and Peoria Road, just east of Gray Drive, about 2 1/4 miles (air) east of Browns Valley. 91 Comment
  HSC9780  Eragrostis mexicana subsp. virescens T. F. Newman 1965-8-22 6559 Yuba Carnes Ranch, 10 mi. N of Marysville Comment
  JEPS94974  Eragrostis mexicana subsp. virescens Lowell Ahart 1997-8-13 7866 Yuba about 2 1/4 air mi e of Browns Valley (on s side of Scott Forbes Road, 1/4 mi e of intersection of Scott Forbes Road and Peoria Road, just e of Gray Drive); s side of Scott Forbes Road 91 Comment
  UCD63879  Eragrostis mexicana subsp. virescens F. L. Smith 1945-10-4 Yuba Marysville, 2 miles north. Comment
  CAS-BOT-BC131511  Ericameria arborescens Carl B. Wolf; E. R. Johnson 1934-10-4 6153 Yuba Texas Hill, about 2 miles from Dobbins 457 Comment
  CAS-BOT-BC131512  Ericameria arborescens Carl B. Wolf; E. R. Johnson 1934-10-4 6153 Yuba Texas Hill, about 2 miles from Dobbins 457 Comment
  CHSC112953  Ericameria arborescens L. P. Janeway 2014-11-6 11582 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 2.1 air km south-southwest of Oregon Peak, 0.2 km north of Marysville Road. 762 Comment
  CHSC45111  Ericameria arborescens Lowell Ahart 1975-9-28 988 Yuba Near the Bullards Bar Dam. 609 Comment
  OBI5769  Ericameria arborescens Carl B. Wolf 1934-10-4 6153 Yuba Texas Hill, about 2 mi from Dobbins 457 Comment
  CHSC83006  Ericameria nauseosa var. speciosa Lowell Ahart 2002-9-8 9936 Yuba Along a wash, on the north side of the dirt road, about 1 mile southeast of Woodleaf, about 3 miles (air) northeast of Challenge. 1001 Comment
  CHSC108163  Ericameria parryi var. latior L. P. Janeway 2011-8-15 10653 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 2.1 air km south-southwest of Oregon Peak, 0.2 km north of Marysville Road. 762 Comment
  UCD131914  Erigeron foliosus Barbara Yungert 1974-5-23 173 Yuba along road near powerhouse, below Englebright Dam, Sierra Foothill Field Station. Comment
  CAS-BOT-BC295160  Erigeron inornatus Lowell Ahart 1983-8-10 4272 Yuba Along the Peterson Ridge Road, about 4 miles south-east of Challenge 1000 Comment
  CHSC84170  Erigeron inornatus var. inornatus Lowell Ahart 2003-7-6 10358 Yuba Near a meadow, east of the power line, about 60 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  CAS-BOT-BC295784  Erigeron petrophilus var. sierrensis Lowell Ahart 1980-8-12 2528 Yuba About 2 miles south-east of Woodleaf 800 Comment
  CHSC70223  Erigeron petrophilus var. sierrensis B. Castro; R. Fallscheer, R. Zebell 1989-8-7 366 Yuba Ca 2.5 air mi S of Bucks Lake, on the south flank of Red Mtn, at jcn USFS Rds 23N18, 23N15, and 23N69. Comment
Read comments Jul 16 2007
  CHSC96977  Erigeron philadelphicus Lowell Ahart 2007-8-7 14427 Yuba About 200 yards south of Hampshire Creek Meadow, about 30 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  RSA21288  Erigeron philadelphicus C. B. Wolf 1937-5-13 8633 Yuba Sierra Nevada Foothills, 2 miles above Browns Valley on road to Stanfield Hill. 122 Comment
  JEPS100495  Erigeron reductus var. reductus Dean W. Taylor 2001-6-21 17812 Yuba canyon of the North Fork Yuba River, near the confluence of Canyon Creek at Kelly Bar Comment
  JEPS125960  Erigeron reductus var. reductus D. W. Taylor 2001-5-9 17647 Yuba Plumas National Forest; canyon of the North Fork of the Yuba River near Kelley Bar Comment
  CHSC96478  Eriodictyon californicum Lowell Ahart 2007-4-17 13688 Yuba On the north side of the poor dirt fireguard, about 50 yards northwest of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  JEPS113102  Eriodictyon californicum Lowell Ahart 2007-4-17 13688 Yuba On the north side of the poor dirt fireguard, about 50 yards northwest of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  JEPS94321  Eriodictyon californicum Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7729 Yuba North of the poor dirt road, south of Dry Creek, about 1 1/4 miles east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville 137 Comment
  RSA726489  Eriodictyon californicum L. Ahart 2007-4-17 13688 Yuba Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5.5 miles (air) northeast of Loma Rica. 293 Comment
  UC1124296  Eriodictyon californicum M. A. Elvin 1933-6-23 31 Yuba 1 mi w Hansonville; Smartsville Quad. Comment
  UC410442  Eriodictyon californicum Alice Eastwood 1930-4-12 Yuba Comment
  UCD119302  Eriodictyon californicum Barbara Yungert 1974-4-22 78 Yuba Along four wheel drive jeep road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  SEINET12335243  Eriodictyon californicum F. H. Utech 1990-1 90 -859 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  UCD168071  Eriogonum nudum var. nudum James Neilson 1961-10-16 464 Yuba 1/2 mile west of Brown's Valley Rd. (Exact location unknown. Coordinates estimated by label maker.) Comment
  CHSC69142  Eriogonum nudum var. oblongifolium Lowell Ahart 1997-8-7 7834 Yuba On the north side of the dirt road, northwest of the bridge across Indian Creek, about 3 miles (air) east of Challenge. 762 Comment
  CAS-BOT-BC261708  Eriogonum nudum var. oblongifolium Lowell Ahart 1980-8-12 2525 Yuba Ca. 2 miles south-east of Woodleaf 800 Comment
  CDA22676  Eriogonum umbellatum var. ahartii L. Ahart 2002-9-8 9935 Yuba Along a small wash, on the north side of the dirt road, about 1 mile southeast of Woodleaf, about 3 miles (air) northeast of Challenge. Comment
  CHSC69147  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-8-9 7838 Yuba On the west side of the dirt road, about one mile (air) south of Woodleaf. 944 Comment
  CHSC69429  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-8-30 7875 Yuba In the gutter on the north side of Forbestown Road, just west of Costa Creek, about 2 1/2 miles (air) southeast of Forbestown. 853 Comment
  CHSC83009  Eriogonum umbellatum var. ahartii Lowell Ahart 2002-9-8 9935 Yuba Along a wash, on the north side of the dirt road, about 1 mile southeast of Woodleaf, about 3 miles (air) northeast of Challenge. 1001 Comment
  CHSC95067  Eriogonum umbellatum var. ahartii L. P. Janeway; David Toren, Dan Lubin, Erin Brandy 2006-7-17 8814 Yuba Northern High Sierra Nevada. Slope on east side above Indian Creek; 3.0 km south of Woodleaf and 2.8 km east of Challenge. Southwest-facing slope of rocky weathered serpentine. 815 Comment
  CHSC95082  Eriogonum umbellatum var. ahartii L. P. Janeway 2006-7-18 8815 Yuba Northern High Sierra Nevada. Along the '107' road, overlooking Golden Gate Ravine from the south; 2.4 km north-northeast of Challenge and 2.4 km southwest of Woodleaf. Small serpentine area along dirt road, northwest-facing. 937 Comment
  JEPS113303  Eriogonum umbellatum var. ahartii L. P. Janeway, David Toren 2006-7-18 8815 Yuba Northern High Sierra Nevada. Along the 107 road, overlooking Golden Gate Ravine from the south; 2.4 km north-northeast of Challenge & 2.4 km southwest of Woodleaf. Comment
  SEINET11268237  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-8-30 7875 Yuba On the North side of Forbestown Road, just west of Costa Creek, about 2 1/2 miles (air) southeast of Forbestown.; 0 853 Comment
  SEINET7856757  Eriogonum umbellatum var. ahartii L. Ahart 1997-8-7 7835 Yuba About 3 miles (air) E of Challenge, on the N side of the dirt road, NW of the bridge across Indian Creek. 762 Comment
  SEINET9085895  Eriogonum umbellatum var. ahartii L. Ahart 1997-8-30 7875 Yuba In gutter on N side of Forbestown Road, just W of Costa Creek, ca 2.5 air miles SE of Forbestown. 853 Comment
  SEINET4208678  Eriophyllum lanatum var. achilleoides George K. Helmkamp, E. A. Helmkamp 2007-5-26 12128 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville. Camptonville 7.5' Q.; 0 802 Comment
  CAS-BOT-BC301316  Eriophyllum lanatum var. croceum Barbara T. Keller 1975-6-10 1493 Yuba Challenge Experimental Forest along La Porte Road near Challenge 762 Comment
  CAS-BOT-BC308241  Eriophyllum lanatum var. grandiflorum Alice Eastwood 1921-5-22 10539 Yuba Los Vergils Comment
  CAS-BOT-BC308242  Eriophyllum lanatum var. grandiflorum Lewis S. Rose 1940-5-28 40385 Yuba Browns Valley 60 Comment
  CAS-BOT-BC308244  Eriophyllum lanatum var. grandiflorum Lowell Ahart 1979-6-25 s.n. Yuba 2 miles east of Challenge Comment
  CHSC113674  Eriophyllum lanatum var. grandiflorum L. P. Janeway 2014-6-24 11416 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 480 m northeast of Marysville Road. 756 Comment
  JEPS95034  Eriophyllum lanatum var. grandiflorum Lowell Ahart 1997-8-7 7825 Yuba about 3 air mi se of Challenge (on e side of the dirt road, near an unnamed stream, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  UCD132217  Eriophyllum lanatum var. grandiflorum W. R. Powell 1968-5-15 1493 a Yuba on Fountain House Road, 2 miles northeast of Dobbins. 792 Comment
  UCD132221  Eriophyllum lanatum var. grandiflorum Barbara Yungert 1974-5-4 117 Yuba north side of Yuba River, F-2 project area, Sierra Foothill Field Staion. Comment
  CHSC108199  Erodium botrys Lowell Ahart 2011-6-7 17402 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCR258226  Erodium botrys George K. Helmkamp, Amy Barnes 2013-3-28 20255 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  JEPS113702  Erodium brachycarpum Lowell Ahart 2007-5-12 13796 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  RSA726411  Erodium brachycarpum L. Ahart 2007-5-12 13796 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  CHSC97453  Erodium cicutarium Lowell Ahart 2007-5-14 13877 Yuba On dry bare disturbed dark soil, about 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCD37852  Erodium cicutarium Beecher Crampton 1962-4-24 6256 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD103243  Erodium cicutarium Barbara Yungert 1974-4-8 5 Yuba Sierra Foothill Field Station. Along Porter Creek, south of station, near bridge at east end. Comment
  RSA125337  Eryngium castrense P. H. Raven, Otto T. Solbrig 1959-6-15 13225 Yuba 9.4 miles south of Marysville on Highway 99 Comment
Read comments Nov 8 2011
  UC1122964  Eryngium castrense M. A. Elvin 1933-6-7 23 Yuba 3 mi. s.e. of O'Brien's Ranch Smartsville Quad. Comment
  UC1167729  Eryngium castrense Peter H. Raven with Otto T. Solbrig 1959-6-15 13225 Yuba 9.4 mi. s. Marysville (U.S. Hwy. 99E) Comment
  CDA18858  Eryngium castrense J. Horenstein 1999-6-9 s.n. Yuba NE of Cock's Creek, Spenceville Wildlife Area. 0 Comment
  SEINET7075555  Eryngium pinnatisectum A. G. Vestal 1955-4-4 s.n. Yuba About 9 miles northeast of Marysville on Route 20. 39? deg. 13' 38" North Latitude, -121? deg. 24' 51" West Longitude. UTM Zone 10, 636890mE, 4342994mN. (NAD 27)]. [Coordinate Datum: WGS84/NAD83]. Comment
  SEINET7042624  Eryngium vaseyi A. G. Vestal 1963-5-7 s.n. Yuba Ca. 3.5 miles north of Wheatland. Camp Far West quadrangle UTM Zone 10, 640908mE, 4323324mN. Comment
  SEINET7067140  Eryngium vaseyi var. globosum A. G. Vestal 1947-4-30 s.n. Yuba About 5.1 miles west of Smartville on Route 20. Coordinate datum: NAD27. Comment
  CAS-BOT-BC54682  Erysimum capitatum Mrs. Martin Goerges 1953-6-24 s.n. Yuba Lake Vera, North Fork, Yuba River. Comment
  UCD114998  Erysimum capitatum var. capitatum Kathleen Kehiler 1975-5-15 113 Yuba base of steep road cut along Marysville Road near Bullards Bar Dam. 609 Comment
  CHSC63275  Erythranthe bicolor Lowell Ahart 1994-6-5 7293 Yuba On the north side of Costa Creek, on the north side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  CHSC97039  Erythranthe bicolor B. Castro; Plumas NF/Feather River RD botanists 2005-6-6 1482 Yuba 3.0 km ENE of Challenge and 3.1 km NW of New Bullard's Bar Res., along USFS Rd 19N03 (from Woodleaf) overlooking Indian Creek. 838 Comment
  CHSC47495  Erythranthe breweri Lowell Ahart 1980-8-12 2562 Yuba Across Slate Creek, west of where Gold Run Creek flows into Slate Creek, east of Onion Creek, about 7 air miles south of La Porte. 1158 Comment
  CHSC90345  Erythranthe geniculata Lowell Ahart 2005-3-11 11608 Yuba West of a poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 395 Comment
  CHSC110465  Erythranthe guttata L. P. Janeway 2013-7-24 11188 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow near headwaters of a northeastern tributary to Hampshire Creek, 1.8 km north of North Yuba River and 1.0 km east-northeast of Hampshire Creek Meadow. 1102 Comment
  CHSC84237  Erythranthe guttata Lowell Ahart 2003-7-17 10412 Yuba On the sides of a stream, on the west side of Smartville road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 129 Comment
  CHSC23421  Erythronium multiscapideum D. Huffmaster 1974-4-14 Yuba Collected ca. 32 mi ne of Marysville on Indiana Ranch Road, ca. 0.2 mi n of Dobbins Road. 457 Comment
  CHSC87346  Erythronium multiscapideum Lowell Ahart 2004-4-27 10769 Yuba About 20 yards north of a drainage, about 50 yards east of the road, about 1/2 mile (air) southeast of Woodleaf. 931 Comment
  SBBG988  Erythronium multiscapideum H. and M. Dearing 1939-5-8 3295 Yuba New York Crk Comment
  CDA39344  Erythronium multiscapideum Yuba County School Children 1930-4-12 s.n. Yuba [No further data.] 0 Comment
  CAS-BOT-BC402629  Eschscholzia caespitosa E. C. Cramsie 1924-4-1 s.n. Yuba Smartsville Comment
  SEINET7075553  Eschscholzia californica A. G. Vestal 1955-4-4 s.n. Yuba About 9 miles northeast of Marysville on Route 20. 39? deg. 13' 38" North Latitude, -121? deg. 24' 51" West Longitude. UTM Zone 10, 636890mE, 4342994mN. (NAD 27)]. [Coordinate Datum: WGS84/NAD83]. Comment
  UCD95349  Eschscholzia californica Barbara Yungert 1974-4-14 30 Yuba along west side of Road 4, L 1-21 project area, Sierra Foothill Field Station. Comment
  SD241118  Eschscholzia lobbii George K. Helmkamp, E. A. Helmkamp 2011-4-10 17163 Yuba Sacramento Valley: along Camp Beale Highway/Spenceville Road, c. 1.75 miles northeast of Wheatland (Wheatland 7.5'Q) 43 Comment
  UCR234194  Eschscholzia lobbii George K. Helmkamp, E. A. Helmkamp 2011-4-10 17163 Yuba Sacramento Valley, along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland 44 Comment
  CAS-BOT-BC419486  Eschscholzia lobbii Helen McGovern 1928-3-23 s.n. Yuba Smartville Comment
  RSA21286  Eschscholzia lobbii Carl B. Wolf 1937-5-12 8630 Yuba 4 miles NE of Wheatland on road to Grass Valley 61 Comment
  UCD95384  Eschscholzia lobbii Barbara Yungert 1974-4-14 36 Yuba K 1-11 project area, Sierra Foothill Station. Comment
  CAS-BOT-BC202418  Euphorbia ocellata J. T. Howell; Gordon H. True 1969-6-24 5100 Yuba Ca. 1 mile NW of Spenceville (site) on Cox Creek 152 Comment
  JEPS95139  Euphorbia spathulata Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7719 Yuba about 17 mi ne of Marysville (on s side of a poor dirt road, about 1/2 mi e of Scott Forbes Road (Long Bar Road) s of Dry Creek) 137 Comment
  JEPS95033  Eurybia radulina Lowell Ahart 1997-8-7 7829 Yuba about 3 air mi e of Challenge (on n side of the dirt road, in a clear cut, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  CAS-BOT-BC312191  Eurybia radulina Lowell Ahart 1983-8-10 4276 Yuba About 2 miles east of Clipper Mills 1000 Comment
  CAS-BOT-BC459238  Euthamia occidentalis Lowell Ahart 1978-9-24 s.n. Yuba 2 miles NE of Marysville on Sam Shintaffer Farm 35 Comment
  CAS-BOT-BC413883  Fallopia convolvulus Lowell Ahart 2007-5-14 13842 Yuba East and west of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  CHSC97660  Fallopia convolvulus Lowell Ahart 2007-5-14 13842 Yuba East and west of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 20 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  CHSC100769  Festuca californica var. californica L. P. Janeway 2008-5-11 9356 Yuba Northern High Sierra Nevada. About 0.8 km north-northeast of Challenge; Golden Gate Ravine side of the ridge between that and Jordan Creek; west side of Road 19N04 1.1 km north-northwest of Challenge-La Porte Road. Near head of dry northwest-sloping swale. 994 Comment
  CHSC107155  Festuca myuros L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10371 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants common throughout the meadow. 750 Comment
  UCR258227  Festuca perennis George K. Helmkamp, Amy Barnes 2013-3-28 20255 A Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  JEPS100268  Festuca subulata Dean W. Taylor 2001-5-9 17641 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  UCD66499  Festuca subuliflora W. R. Powell 1966-5-19 1300 Yuba 5 1/2 miles s. e. Challenge 609 Comment
  CHSC112857  Fragaria vesca L. P. Janeway 2014-4-15 11229 Yuba Northern High Sierra Nevada. Plumas National Forest; east edge of Milk Ranch Meadow; on a low gap between an unnamed tributary of Little Oregon Creek to the west and an unnamed tributary of New Bullards Bar Reservoir (North Yuba River) to the east; along an eastern extension of Fountain House Road. 739 Comment
  UCD113242  Fragaria vesca Kathleen Keliher 1975-4-30 81 Yuba ca. 30 meters off Marysville Road near Oregon Creek. Comment
  CAS-BOT-BC454547  Fragaria vesca subsp. californica Lowell Ahart 1968-4-20 s.n. Yuba Five miles southeast of Challenge 457 Comment
  CAS-BOT-BC53654  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba along the left bank of the Yuba River, near bridge on road from Brown's Valley to Smartsville Comment
  CAS-BOT-BC53657  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1446 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-BC53658  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-5 1443 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-BC53659  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1447 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-BC53662  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-BC53664  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1447 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-BC53667  Frangula californica subsp. tomentella Carl B. Wolf 1931-3-26 1738 Yuba Yuba River on Browns Valley - Smartsville Road 152 Comment
  CAS-BOT-BC53668  Frangula californica subsp. tomentella Carl B. Wolf; E. R. Johnson 1934-10-4 6155 Yuba Sierra Nevada Foothills. Texas Hill, 2 mi. W. of Dobbins 457 Comment
  CAS-BOT-BC53669  Frangula californica subsp. tomentella Carl B. Wolf; E. R. Johnson 1934-10-4 6155 Yuba Sierra Nevada Foothills. Texas Hill, 2 mi. W. of Dobbins 457 Comment
  CHSC108173  Frangula californica subsp. tomentella L. P. Janeway 2011-8-15 10652 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 1.9 air km south-southwest of Oregon Peak, 0.3 km north of Marysville Road. Southwest edge of meadow area, where seasonal drainage occurs and in sheetlfow parts of the meadow. 750 Comment
  JEPS124103  Frangula californica subsp. tomentella Lowell Ahart, Susan Kephart, Jim Kephart 2015-6-4 20197 Yuba About 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. Comment
  LA207669  Frangula californica subsp. tomentella C. B. Wolf; 1927-11-5 1444 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  OBI5863  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1447 Yuba Browns Valley to Smartsville rd, along left bank of Yuba river, near bridge 152 Comment
  SBBG27500  Frangula californica subsp. tomentella C. B. Wolf 1927-11-5 1444 Yuba Browns Valley to Smartsville Rd, along left bank of Yuba River, near bridge 152 Comment
  SD22796  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1447 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  UCD112769  Frangula californica subsp. tomentella D. H. Hartmann 1941-10-11 s.n. Yuba 2 miles west of Smartsville. Comment
  UCD112806  Frangula californica subsp. tomentella Barbara Yungert 1974-5-8 131 Yuba north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  CHSC110466  Frangula purshiana subsp. annonifolia L. P. Janeway 2013-7-24 11190 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow near headwaters of a northeastern tributary to Hampshire Creek, 1.8 km north of North Yuba River and 1.0 km east-northeast of Hampshire Creek Meadow. 1102 Comment
  CAS-BOT-BC53823  Frangula rubra Carl B. Wolf 1934-10-4 6154 Yuba Sierra Nevada foothills. Texas Hill, 2 mi. w. of Dobbins 457 Comment
  CHSC69149  Frangula rubra Lowell Ahart 1997-8-7 7822 Yuba On the east side of the dirt road, near an unnamed stream, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  CHSC112863  Frangula rubra subsp. obtusissima L. P. Janeway 2014-4-24 11234 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  CHSC113643  Frangula rubra subsp. obtusissima L. P. Janeway 2014-5-12 11252 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  CHSC46513  Frangula rubra subsp. obtusissima Lowell Ahart 1976-5-6 1094 Yuba Along the edge of Ponderosa Way, near the Brownville Dump, south-west of Brownsville. 487 Comment
  CAS-BOT-BC55739  Frangula rubra subsp. rubra Lowell Ahart 1976-5-6 s.n. Yuba Near the Brownsville Dump, Brownsville 457 Comment
  UCD122071  Fraxinus latifolia Kathleen Keliher 1975-5-31 128 Yuba Along Dry Creek near Lower Cook Road, near boundary of K-4 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC205975  Fremontodendron californicum Wayne Roderick 1980-10-14 1007 Yuba Two miles east of Dobbins Comment
  CAS-BOT-BC205976  Fremontodendron californicum Wayne Roderick 1981-5-24 s.n. Yuba Near Dobbins Comment
  CHSC47512  Fremontodendron californicum Lowell Ahart 1975-6-25 810 Yuba East of Ponderosa Way, near the Brownsville dump, about 2 miles south-west of Brownsville. 518 Comment
  UCD73922  Fremontodendron californicum G. Ledyard Stebbins 1966-5-22 6417 Yuba Dobbins Dump. Comment
  UCD80804  Fremontodendron californicum CNPS SN Foothill Team 2005-5-31 SNFN 0329 c Yuba BLM, Ponderosa Landfill. 699 Comment
  CAS-BOT-BC205978  Fremontodendron decumbens G. L. Stebbins 1966-5-22 6417 Yuba Near Dobbins, beside city dump 524 Comment
  CAS-BOT-BC136095  Fritillaria affinis Volney Rattan 1880-1-1 s.n. Yuba Brownsville Comment
  CHSC112261  Fritillaria eastwoodiae Lowell Ahart 2013-4-23 18566 Yuba Mined area along Costa Creek, about 100 yards east of where the paved road crosses Costa Creek, about 2 1/2 miles (air) southeast of the Forbestown store. 851 Comment
  CHSC63299  Fritillaria eastwoodiae Lowell Ahart 1994-4-22 7289 Yuba On the north side of Costa Creek, on the north side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  CHSC74731  Fritillaria eastwoodiae B. Castro; L. P. Janeway 1991-4-17 440 A Yuba Ca 10 air mi SE of Challenge, ca 1.4 mi E of Dobbins; the southern most parcel of the Plumas NF. On W end of saddle to the top of the S-facing slope between two knolls off of USFS Rd 18N03, mostly on the S side of the road. 762 Comment
  CHSC41230  Fritillaria micrantha Jokerst; Ahart 1984-3-20 1944 Yuba Near Brownsville south of the Brownsville Dump, east of and adjacent to Ponderosa Way 0.65 miles N of its jct. With La Porte Rd. Comment
  CHSC47588  Fritillaria micrantha Lowell Ahart 1976-4-15 1074 Yuba On the east side of Ponderosa Way, at the Brownsville Dump, about 2 miles south-west of Brownsville. 457 Comment
  CAS-BOT-BC506163  Fritillaria micrantha Jokerst; Ahart 1984-3-20 JDJ 1946 Yuba East side of Ponderosa Road 0.3 mile south of its junction with Robinson Mill Road Comment
  SEINET10469564  Fritillaria micrantha Mary Susan Taylor, L. Hanson 1981-4-15 Taylor 3537 Yuba T19N R7E se sec 7, Clipper Mills quad. N side of Forbestown-Woodleaf Rd, ca. 3/4 mi E of its jct with Forbestown Rd, ca. 2 mi W of Woodleaf. 2800 ft. 853 Comment
  SEINET10469565  Fritillaria micrantha Mary Susan Taylor, L. Hanson 1981-4-15 Taylor 3539 Yuba T19N R6E center sec 34, Rackerby quad. In Brownsville along LaPorte-Quincy Rd (Marysville-LaPorte Rd), near its jct with Rackerby Rd about a block. Yellow Pine Forest; 2300 ft. 701 Comment
  CAS-BOT-BC130402  Fritillaria pinetorum Lowell Ahart 1976-4-15 s.n. Yuba Near the Brownsville Dump, Brownsville Comment
  JEPS18153  Fritillaria recurva Rimo Bacigalupi with G. T. Robbins and F. Chisaki 1956-4-19 5623 Yuba 5.5 mi sw of Bullard Bar Dam (3.1 mi e of Dobbins, watershed of North Fork of Yuba River, between Dobbins and Bullard Bar Dam) 838 Comment
  UCR194905  Galium bolanderi George K. Helmkamp, E. A. Helmkamp 2007-5-26 12140 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, just north of the Nevada Co. line; beside Oregon Creek and Oregon Creek campground 430 Comment
  JEPS118056  Galium divaricatum Lowell Ahart 2011-6-7 17412 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  JEPS62620  Galium divaricatum John Thomas Howell and Gordon H. True 1967-6-13 3572 Yuba river e Wheatland; Bear River, Camp Far West Reservoir 60 Comment
  JEPS98438  Galium murale Lowell Ahart 2000-5-25 8395 Yuba 6 air mi S of Smartville (bank of a large wash, a N branch of Dry Creek, 2 mi N of intersection of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  UCD37843  Galium parisiense Beecher Crampton 1962-4-24 6240 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCR232252  Galium parisiense George K. Helmkamp, E. A. Helmkamp 2011-5-6 17215 Yuba Eastern edge of Sacramento Valley, Camp Far West Road, 1.3 miles southeast of its junction with Spenceville Road, 5.25 mi. NE (52 deg. ) of Wheatland 62 Comment
  SBBG121515  Galium sparsiflorum L. Ahart, L. Janeway, L. Hanson 2007-9-18 14499 Yuba Hampshire Crk Meadow, ca. 20 yards E of dirt rd, ca. 1 mi E of Clipper Mills 1015 Comment
  CDA14573  Galium trifidum G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3053 Yuba La Porte _ Quincy Road 3.6 miles northeast of Strawberry Valley at the Plumas county line. 1280 Comment
  CHSC97752  Galium trifidum Lowell Ahart 2007-11-1 14529 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  CAS-BOT-BC278716  Gastridium ventricosum Lowell Ahart 1980-6-19 2396 Yuba 3 miles south-east of Challenge 800 Comment
  JEPS113755  Gastridium ventricosum Lowell Ahart 2007-5-12 13827 Yuba Dry bare red soil, about 30 feet south of a culvert, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  SJSU10225  Gaultheria ovatifolia C. W. Sharsmith 1983-6-8 8806 Yuba near Slate Cr bridge crossing of Scales & Quincy-La Porte Rds 1066 Comment
  UCD105750  Genista monspessulana Barbara Yungert 1974-6-5 193 Yuba Picnic area, north of Yuba River, Sierra National Foothill Field Station. Comment
  UCD37890  Geranium dissectum Beecher Crampton 1962-4-24 6316 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCR258230  Geranium dissectum George K. Helmkamp, Amy Barnes 2013-3-28 20248 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  UCD37857  Geranium molle Beecher Crampton 1962-4-24 6263 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD37891  Geranium molle Beecher Crampton 1962-4-24 6317 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD117956  Gilia tricolor Kathleen Keliher 1975-4-21 67 Yuba one quarter of a mile from dirt road, 70 meters from Yuba River, F-2 project area, Sierra Foothill Field Station. 152 Comment
  SEINET10972189  Githopsis specularioides Keliher 1975-5-3 KELIHER 86 Yuba Higher Cook Road, K 1-11 Project Area, Sierra Foothill Field Station 229 Comment
  UCD72432  Githopsis specularioides Kathleen Keliher 1975-5-3 86 Yuba Sierra Foothill Field Station, Higher Cook Road, K 1-11 project area. 228 Comment
  CHSC113177  Glinus lotoides Lowell Ahart 2013-11-30 19297 Yuba On the north side of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  JEPS102591  Glinus lotoides Lowell Ahart 2001-11-2 9401 Yuba Camp Far West Reservoir, about 1/4 mile NE of the dam, about 9 miles (air) SE of Wheatland. 83 Comment
  JEPS115014  Glinus lotoides Lowell Ahart 2007-11-8 14582 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan 73 Comment
  SBBG121295  Glinus lotoides L. Ahart 2007-11-8 14582 Yuba strand of Camp Far West Reservoir, ca. 0.5 mi S of Rock Crk, ca. 1/8 mi N of Bear River, ca. 6 mi (air) NE of Sheridan 73 Comment
  CAS-BOT-BC283886  Glyceria declinata Lowell Ahart 2007-5-12 13824 Yuba W of the culvert, about 20 yards NW of the power tower, about 50 yards N of Fruitland Road, about 13 miles (air) NE of Marysville 35 Comment
  CHSC76311  Glyceria declinata Lowell Ahart 1999-9-17 8248 Yuba In a rice field, Sam Shintaffer Farm, south of Woodruff Lane, south of Mathews Road, 100 yards south of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  SEINET10662642  Glyceria occidentalis Lowell Ahart 1999-9-17 Ahart 8248 Yuba T16N, R4E, Section not surveyed. Sam Shintaffer Farm, south of Woodruff Lane, south of Mathews Road, 100 yards south of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  RSA795344  Gnaphalium luteoalbum L. Ahart 2011-6-7 17376 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 air miles northeast of Marysville. 66 Comment
  CDA6022  Gnaphalium palustre L. Ahart 2002-10-9 9952 Yuba Wet area along Lost Creek, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. Comment
  CHSC113185  Gnaphalium palustre Lowell Ahart 2013-11-30 19316 Yuba On the southeast side of Dry Creek, about 30 yards southeast of Willow Glen Creek, below the high water line of Collins Lake, about 30 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  CHSC81758  Gnaphalium palustre Lowell Ahart 2001-11-2 9403 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  CHSC69459  Goodyera oblongifolia Lowell Ahart 1997-8-7 7831 Yuba ON the east side of the dirt road, on the east side of the bridge across Indian Creek, about 3 miles (air) east of Challenge. 762 Comment
  JEPS125850  Goodyera oblongifolia Dean W. Taylor 2001-7-31 17851 Yuba Rock Creek canyon on the Yuba County side, ca 2 air miles SW of Union Hill. Comment
  UCD147085  Gratiola ebracteata Chuck Hughes; Juliette Robinson 2013-5-2 370 Yuba Northwest margin of Camp Far West Reservoir. 93 Comment
  SEINET7072721  Grindelia camporum A. G. Vestal 1963-5-7 s.n. Yuba About 3.5 miles north of Wheatland on Jasper Lane. UTM Zone 10, 636590E, 4323573mN. Coordinate datum: NAD 27. Comment
  CAS-BOT-BC314671  Grindelia hirsutula Lewis S. Rose 1971-6-10 71071 Yuba Yuba River, Parks Bar W of Smartville 60 Comment
  CAS-BOT-BC314672  Grindelia hirsutula John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54072 Yuba 1.4 miles southwest of Bullards Bar Dam, on road to Challenge 609 Comment
  UC1118572  Grindelia hirsutula H. S. Yates 1933-5-24 3642 Yuba near Toland Ranch; Smartsville Quad. Comment
  CAS-BOT-BC282872  Hainardia cylindrica Lowell Ahart 2007-5-12 13825 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of teh second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marsville 28 Comment
  CHSC97681  Hainardia cylindrica Lowell Ahart 2007-5-12 13825 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113630  Hainardia cylindrica Lowell Ahart 2007-5-12 13825 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  SEINET11836554  Haplopappus arborescens Unknown 1975-1 987 Yuba near Bullards Bar Dam 610 Comment
  CHSC108222  Hedypnois cretica Lowell Ahart 2011-6-7 17377 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCD33243  Hedypnois cretica Beecher Crampton 1967-5-17 7943 Yuba 5 miles east of Brown's Valley, sierra foothill range field station. Comment
  UCR118923  Hedypnois cretica Beecher Crampton 1967-5-17 7943 Yuba Central Sierra Nevada foothills, 5 Miles east of Brown's Valley, Sierra foothill range field station. 366 Comment
  CAS-BOT-BC306333  Hedypnois cretica Carl B. Wolf 1937-5-13 8631 Yuba Sierra Nevada Foothills, 2 mi. above Browns Valley on road to Stanfield Hill 121 Comment
  RSA21287  Hedypnois cretica C. B. Wolf 1937-5-13 8631 Yuba Sierra Nevada Foothills, 2 miles above Browns Valley on road to Stanfield Hill. 122 Comment
  UCD132675  Hedypnois cretica Barbara Yungert 1974-4-19 69 Yuba intersection of Loop and Road 4, K1-11 Project area, Sierra Foothill Field Station. Comment
  CHSC116584  Helenium bigelovii L. P. Janeway 2015-7-1 11794 Yuba Northern High Sierra Nevada. Plumas National Forest; Forbestown, 120 m southwest of Challenge Cut-Off Road and 0.6 km southeast of its junction with Forbestown Road; spring area at headwaters of a northeastern tributary of New York Creek. 817 Comment
  CHSC116114  Helenium puberulum Lowell Ahart 2015-11-18 20660 Yuba Marsh like area 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 Raod, about 5 miles (air) northeast of Gridley. 26 Comment
  SBBG8399  Helianthella californica H. and M. Dearing 1939-5-8 3300 Yuba near Camptonville Comment
  CAS-BOT-BC314787  Helianthella californica var. nevadensis Lloyd W. Swift 1932-5-10 55 Yuba Near Dobbins, Mt. Misery, Plumas Forest 762 Comment
  CAS-BOT-BC309977  Hemizonia congesta subsp. luzulifolia C. B. Wolf; B. D. Stark 1933-9-25 5504 Yuba Marysville Airport, 2 mi. N. of Marysville, Sacramento Valley 22 Comment
  UC718034  Hemizonia congesta subsp. luzulifolia C. B. Wolf, and B. D. Stark 1933-9-25 Yuba 2 mi n Marysville (Marysville Airport); Sacramento Valley 15 Comment
  SEINET7072980  Hemizonia fitchii A. G. Vestal 1963-5-29 s.n. Yuba Beale Road (Route 20) & Route 99 at Yuba City northwest of Wheatland. UTM Zone 10, 618094mE, 4333199mN. Coordinate datum: NAD27). Comment
  CDA7043  Hemizonia fitchii A. C. Browne 1951-5-15 Yuba Marysville. 0 Comment
  RSA7607  Hemizonia luzulifolia subsp. rudis C. B. Wolf, B. D. Stark 1933-09 5504 Yuba Marysville airport, 2 miles N of Marysville; Sacramento Valley. 15 Comment
  CAS-BOT-BC310179  Hesperevax caulescens Lowell Ahart 2007-5-12 13775 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  RSA726567  Hesperevax caulescens L. Ahart 2007-5-12 13775 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  SBBG117339  Hesperocyparis macnabiana B. Crampton 1972-2-14 8769 Yuba ca. 1.5 mi NNE of Oregon House Comment
  CHSC107429  Hesperolinon micranthum L. P. Janeway 2011-8-10 10642 Yuba Northern High Sierra Nevada. Plumas National Forest; serpentine slope on southeast side of Road 19N04 1.3 km north of Challenge-La Porte road; 2.2 air km northeast of Challenge. 1023 Comment
  JEPS95798  Heteranthera limosa Lowell Ahart 1999-9-17 8240 Yuba about 5 miles (air) northeast of Marysville; ; south of Woodruff Lane; just east of Mathews Road; east of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  CDA2649  Heteranthera limosa L. Ahart 1999-9-17 8240 Yuba South of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer s rice dryer, about 5 miles (air) northeast of Marysville. Comment
  JEPS95854  Heteranthera rotundifolia Lowell Ahart 1999-9-17 8241 Yuba about 5 miles (air) northeast of Marysville; ; south of Woodruff Lane; just east of Mathews Road; east of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  CDA2656  Heteranthera rotundifolia L. Ahart 1999-9-17 8241 Yuba South of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer s rice dryer, about 5 miles (air) northeast of Marysville. Comment
  CHSC97499  Heterocodon rariflorum Lowell Ahart 2007-5-14 13875 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  RSA584282  Heterocodon rariflorum L. Ahart 1980-6-19 2407 Yuba 3.5 miles SE of Challenge. 800 Comment
  CHSC69150  Heteromeles arbutifolia Lowell Ahart 1997-8-7 7823 Yuba On the west side of the dirt road, near a unnamed stream, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  JEPS94515  Heteromeles arbutifolia Lowell Ahart 1997-8-7 7823 Yuba about 3 air mi se of Challenge (on w side of dirt road near an unnamed stream, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  CHSC44872  Heterotheca grandiflora Lowell Ahart 1977-8-31 1557 Yuba Near Jack Slough, on the Sam Shintaffer Farm, about 2 air miles north-east of Marysville. 27 Comment
  CAS-BOT-BC310275  Heterotheca grandiflora Gordon H. True 1970-3-17 5204 Yuba Camp Far West dam on Bear River ca. 5 mi. E of Wheatland 56 Comment
  CAS-BOT-BC310276  Heterotheca grandiflora Lowell Ahart 1977-8-31 s.n. Yuba Sutter Buttes Area. About 2 miles northeast of Marysville, near Jack Slough on the Sam Shintaffer Farm 30 Comment
  RSA0075913  Heterotheca grandiflora A. A. Heller 1924-10-25 13833 Yuba Wheatland. Comment
  UCD110312  Hieracium argutum William Haley; S. Haley, D. Thomas, P. Grady 2011-10-20 s.n. Yuba Tahoe National Forest. Vista Point trail, east side of New Bullards Bar Reservoir, along trail. 633 Comment
  CAS-BOT-BC55319  Hirschfeldia incana Lowell Ahart 1981-6-13 2855 Yuba Near McGinn Hill, Loma Rica. 300 Comment
  UCD33103  Hoita macrostachya Beecher Crampton 1966-6-14 7738 Yuba Yuba County, 5 miles east of Brown's Valley, Sierra Foothill Range Field Station. Comment
  CHSC115907  Hoita orbicularis L. P. Janeway 2015-6-29 11786 Yuba Northern High Sierra Nevada. Plumas National Forest; Weiss Hill Meadow, a large meadow 600 air-km east-southeast of junction of Weiss Hill Road and Forbestown Road; at the head of a minor northwestern tributary to New York Creek. 853 Comment
  CHSC84167  Hoita orbicularis Lowell Ahart 2003-7-6 10354 Yuba In a meadow, east of the power line, about 50 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  CAS-BOT-BC280821  Holcus lanatus Lowell Ahart 1979-6-25 s.n. Yuba About one mile south of Challenge 700 Comment
  CAS-BOT-BC280822  Holcus lanatus Barbara T. Keller 1975-6-10 1494 Yuba Challenge Experimental Forest on La Porte Road near Challenge 762 Comment
  CHSC110333  Holcus lanatus L. P. Janeway 2013-6-7 11135 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, one of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. 815 Comment
  JEPS95537  Holcus lanatus Lowell Ahart 1994-6-27 7393 Yuba 4 mi NE of Strawberry Valley (along the N side of a small stream, E of Schwartz Meadow, on the E side of La Porte Road) 1219 Comment
  RSA726805  Holcus lanatus L. Ahart 2007-6-22 14220 Yuba 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  SEINET4585087  Holcus lanatus A. Tiehm 1975-1 641 Yuba U.C. Sierra Foothill Field Station 198 Comment
  UCD168077  Holcus lanatus James Neilson 1961-10-16 459 Yuba 3 mile east Brown's Valley Rd. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UCD51771  Holcus lanatus Beecher Crampton 1957-6-5 4112 Yuba Along State Hwy. 20, 5 miles east of Marysville. Comment
  UCD84858  Holcus lanatus Beecher Crampton 1962-4-24 6297 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCR206948  Holcus lanatus George K. Helmkamp, E. A. Helmkamp 2009-5-28 14834 B Yuba Sierra Nevada Mountains Foothills, along CA-49, 2.2 miles north of the Camptonville exit 811 Comment
  JEPS59966  Holozonia filipes Lewis S. Rose 1969-6-26 69060 Yuba 5 mi s Smartville (Camp Beale Road) 182 Comment
  JEPS98568  Holozonia filipes Lowell Ahart 2000-6-11 8463 Yuba 6 mi (air) S of Smartville (bottom of a deep wash, a N branch of Dry Creek, 2 mi N of int. of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  CAS-BOT-BC289260  Hordeum brachyantherum Pat Morgan 1981-5-17 115 Yuba Jct. Hwy. 49 & Yuba Ct. Rd. E21 Comment
  CHSC108212  Hordeum marinum subsp. gussoneanum Lowell Ahart 2011-6-7 17424 Yuba East of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC97667  Hordeum marinum subsp. gussoneanum Lowell Ahart 2007-5-14 13860 Yuba Bottom of a large vernal pool, about 30 yards east of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville. 29 Comment
  JEPS113402  Hordeum marinum subsp. gussoneanum Lowell Ahart 2007-5-14 13860 Yuba Bottom of a large vernal pool, about 30 yards east of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville 29 Comment
  JEPS118309  Hordeum marinum subsp. gussoneanum Lowell Ahart 2011-6-7 17424 Yuba East of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  RSA726566  Hordeum marinum subsp. gussoneanum L. Ahart 2007-5-14 13860 Yuba About 1/2 mile north of Fruitland Road, about 13.5 miles (air) northeast of Marysville. 29 Comment
  SACT001354  Hordeum marinum subsp. gussoneanum Michael Baad 1983-7-11 Yuba Wet grazed meadow. 1828.0 Comment
  UCD85840  Hordeum marinum subsp. gussoneanum Beecher Crampton 1962-4-24 6251 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCD85846  Hordeum marinum subsp. gussoneanum Beecher Crampton 1965-6-17 7370 Yuba Ca. 3/4 mile north of Stanfield Hill, Willow Glen Creek. Comment
  UCD85847  Hordeum marinum subsp. gussoneanum Beecher Crampton 1966-6-14 7755 Yuba 1 mile east of Brownsville. 731 Comment
  CHSC97455  Hordeum murinum subsp. leporinum Lowell Ahart 2007-5-14 13861 Yuba Along the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  UCR257540  Hordeum murinum subsp. murinum George K. Helmkamp 2014-4-17 22758 Yuba Sierra Nevada Foothills, Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville 264 Comment
  CHSC84161  Horkelia californica subsp. dissita Lowell Ahart 2003-6-29 10318 Yuba Along a wash, on the east side of Ponderosa Way, about 1 1/2 miles north of La Porte Road, about 1 mile (air) west of Brownsville. 701 Comment
  JEPS104035  Horkelia californica subsp. dissita Lowell Ahart 2003-6-29 10318 Yuba Along a wash, on the e side of Ponderosa Way, ca 1 1/2 mi n of La Porte Rd, ca 1 mi (air) w of Brownsville. 701 Comment
  CAS-BOT-BC536174  Horkelia californica var. elata Alice Eastwood 1921-5-22 10545 Yuba Los Vergils Comment
  CAS-BOT-BC536175  Horkelia californica var. elata Alice Eastwood 1921-5-22 10545 Yuba Los Vergils Comment
  UCD113558  Horkelia tridentata Kathleen Keliher 1975-5-6 93 Yuba 300 meters off La Porte Road, 2 miles from Forbestown Road. 914 Comment
  CHSC69151  Horkelia tridentata subsp. tridentata Lowell Ahart 1997-8-7 7833 Yuba On the north side of the dirt road, northwest of the bridge across Indian Creek, about 3 miles (air) east of Challenge. 762 Comment
  CDA19000  Hydrilla verticillata R. Kerr, E. Storm 2000-10-3 PDR 829572 Yuba Inhabiting in medium density of 0.01 acre pond in the vicinity of Marysville-Oregon House. 0 Comment
  CDA36288  Hydrilla verticillata Keith Miller 1976-11-24 s.n. Yuba Marysville, Ellis Lake, 9th & B Streets. 0 Comment
  SD97027  Hydrilla verticillata G. D. Barbe, T. C. Fuller 1976-11-1 2231 Yuba Southeast edge of freshwater Ellis Lake, to 4I(c) feet deep, 9th and B Streets, Marysville. Comment
  SBBG80277  Hydrilla verticillata K. Miller 1976-11-24 Yuba Ellis Lake, 9th and B St, Marysville Comment
  SEINET14165650 Image available Hydrilla verticillata T. C. Fuller, G. D. Barbe 1976-11-1 2231 Yuba SE edge of freshwater Ellis Lake, to 4-1/2' deep; 9th and B Streets, Marysville Comment
  JEPS121312  Hydrocotyle umbellata Lowell Ahart 2013-11-30 19309 Yuba On the N side of Dry Creek, below the high water line of Collins Lake, about 300 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  RSA0037021  Hydrocotyle umbellata Lowell A. Ahart 2013-11-30 19309 Yuba On the north side of Dry Creek, below the high water line of Collins Lake, about 300 yards north of Marysville Road, about 2 1/2 miles west of Oregon house. 354 Comment
  CHSC116587  Hypericum anagalloides L. P. Janeway 2015-7-1 11795 Yuba Northern High Sierra Nevada. Plumas National Forest; Forbestown, 120 m southwest of Challenge Cut-Off Road and 0.6 km southeast of its junction with Forbestown Road; spring area at headwaters of a northeastern tributary of New York Creek. 817 Comment
  CHSC84430  Hypericum anagalloides Lowell Ahart 2003-7-6 10350 Yuba In a meadow, east of the power line, about 50 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  JEPS104123  Hypericum anagalloides Lowell Ahart 2003-7-6 10350 Yuba In a meadow, e of the power line, ca 50 yd nw of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  JEPS98696  Hypericum anagalloides Lowell Ahart 2000-6-11 8462 Yuba 6 mi (air) S of Smartville (sides of a deep wash, a N branch of Dry Creek, 2 mi N of int. of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  SEINET13710865  Hypericum anagalloides Lowell William Ahart, Lowell William Ahart 2003-1 10350 Yuba 5 Mi. N of Dobbins (39 Deg 26'11.7"N, 121 Deg 12'07.3'W) 2746 Ft. 837 Comment
  CHSC112862  Hypericum concinnum L. P. Janeway 2014-4-26 11427 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  UC1122103  Hypericum concinnum M. A. Elvin 1933-6-7 25 Yuba 4 mi. s.w. McCourtney Crossing; Smartsville Quad. Comment
  SEINET13710866  Hypericum formosum Lowell William Ahart, Lowell William Ahart 2003-1 10351 Yuba 5 Mi. N of Dobbins (39 Deg 26'11.7"N, 121 Deg 12' 07.3"W) 2746 Ft. 837 Comment
  CHSC84218  Hypericum perforatum Lowell Ahart 2003-7-6 10352 Yuba Near a meadow, east of the power line, about 50 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  CHSC97746  Hypericum perforatum Lowell Ahart 2007-11-8 14583 Yuba On the south edge of a small island, on the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 91 Comment
  UCR231336  Hypericum perforatum George K. Helmkamp, E. A. Helmkamp 2011-5-6 17181 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.3 mile north of the junction with Hokan Lane, vicinity of Camp Far West Reservoir 105 Comment
  CHSC108203  Hypochaeris glabra Lowell Ahart 2011-6-7 17378 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCD37851  Hypochaeris glabra Beecher Crampton 1962-4-24 6255 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CAS-BOT-BC312914  Hypochaeris glabra Gordon H. True 1963-4-17 1173 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Hwy. 30 Comment
  CHSC96978  Hypochaeris radicata Lowell Ahart 2007-8-7 14411 Yuba Hampshire Creek Meadow, about 30 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  CAS-BOT-BC133616  Iris hartwegii Gladys L. Smith 1976-6-7 4619 Yuba Along road about 15 miles southwest of La Porte 1524 Comment
  UCD138741  Iris hartwegii R. O. Hanes 1991-5-21 13 Yuba Hornswoggle Ck area. Tahoe Forest. 682 Comment
  UCD138742  Iris hartwegii R. O. Hanes 1991-5-21 13 Yuba Hornswoggle Ck area. Tahoe Forest. 682 Comment
  CHSC112858  Iris hartwegii subsp. hartwegii L. P. Janeway 2014-4-24 11236 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  JEPS121746  Iris hartwegii subsp. hartwegii L. P. Janeway 2014-4-24 11236 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. Comment
  CHSC59575  Iris macrosiphon H. E. Mac Lennan 1992-4-5 10 Yuba 20 air miles se of Oroville. 533 Comment
  UC571183  Iris macrosiphon Herbert L. Mason 1927-5-11 3724 Yuba near Dobbins 457 Comment
  CHSC87339  Isoetes nuttallii Lowell Ahart 2004-4-27 10750 Yuba Along a very small drainage, about 100 yards northwest of where the drainage crosses the road, about 1/2 mile (air) southeast of Woodleaf. 950 Comment
  HSC96960  Isoetes nuttallii L. Ahart 2004-4-27 10750 Yuba 100 yards NW of where drainage crosses the rd., about 0.5 mi. SE of Woodleaf 951 Comment
  JEPS106166  Isoetes nuttallii Lowell Ahart 2004-4-27 10750 Yuba Along a very small drainage, about 100 yards northwest of where the drainage crosses the road, about 1/2 mile (air) southeast of Woodleaf 950 Comment
  CAS-BOT-BC69895  Isoetes nuttallii Lowell Ahart 1980-6-19 2412 Yuba 4.5 mi. e. of Challenge. 900 Comment
  CAS-BOT-BC69896  Isoetes nuttallii Lowell Ahart 1981-3-24 2707 Yuba 6 mi. e. of Wheatland. 50 Comment
  CHSC78207  Isolepis cernua Lowell Ahart 2000-5-25 8399 Yuba On the sides of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  CHSC97651  Isolepis cernua Lowell Ahart 2007-5-14 13883 Yuba On the bottom of a swale, about 250 yards west of the power tower, power tower is about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  HSC97767  Isolepis cernua L. Ahart 2000-5-25 8399 Yuba Deep wash, N branch of Dry Creek, 100 yds. W of Smartville Rd., 2 mi. N of intersection of Waldo Rd. and Smartville Rd., 6 mi. S of Smartville 146 Comment
  CHSC45187  Isolepis setacea Lowell Ahart 1980-6-19 2394 Yuba In small seep along the edge of a dirt road, about 3 air miles south-east of Challenge. 731 Comment
  CHSC84141  Isolepis setacea Lowell Ahart 2003-7-2 10348 Yuba In a small stream, on the east side of Fountain Hill Road, about 3 miles south of Oregon Hill Road, about 1/2 mile (air) north of Fountain House Hill, about 3 miles (air) northeast of Dobbins. 841 Comment
  CAS-BOT-BC112654  Isolepis setacea Beecher Crampton 1966-6-14 7752 Yuba 1 mile east of Brownsville, La Porte Road. Comment
  CAS-BOT-BC340264  Jensia rammii Lowell Ahart 2007-5-12 13772 Yuba About 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road about 13 miles (air) northeast of Marysville 28 Comment
  CAS-BOT-BC340266  Jensia rammii 1930-4-12 s.n. Yuba Texas hill road Comment
  JEPS113472  Jensia rammii Lowell Ahart 2007-5-12 13772 Yuba Dry bare red soil, bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UCD169278  Jensia rammii Lowell Ahart 2007-5-12 13772 Yuba About 13 miles (air) northeast of Marysville. About 300 yards north of Fruitland Road, about 100 yards southwest of the second power tower. 28 Comment
  CAS-BOT-BC340265  Jensia rammii Peter H. Raven 1953-5-9 5482 Yuba 2 miles from Brownsville on road to Dobbins Comment
  CHSC47518  Juncus acuminatus Lowell Ahart 1981-7-13 2861 Yuba About 1/2 mile west of McGinn Hill, east of Loma Rica. 274 Comment
  CHSC76309  Juncus acuminatus Lowell Ahart 1999-9-17 8257 Yuba Sam Shintaffer Farm, on the west side of Kimball Lane, near the intersection of Kimball Lane and Hallwood Blvd., about 3/4 mile south of Sam Shintaffer's rice dryer, about 4 1/4 miles (air) northeast of Marysville. 22 Comment
  CHSC96986  Juncus acuminatus Lowell Ahart 2007-8-7 14412 Yuba Hampshire Creek Meadow, about 5 yards west of the dirt road, about 1 mile (air) east of Clipper Mills. On the east side of a small pond, on the west side of the dirt road. 1021 Comment
  HSC97069  Juncus acuminatus L. Ahart 2002-10-9 9955 Yuba High water line of Sly Creek Reservoir about 1/8mi SW of Day Camp 1073 Comment
  JEPS95937  Juncus acuminatus Lowell Ahart 1999-9-17 8257 Yuba Sam Shintaffer Farm; on the west side of Kimball Lane; near the intersection of Kimball Lane and Hallwood Blvd.; about 3/4 mile south of Sam Shintaffer's rice dryer; about 4 1/4 miles (air) northeast of Marysville 22 Comment
  RSA726653  Juncus acuminatus L. Ahart 2007-6-22 14215 Yuba 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  CHSC47520  Juncus articulatus Lowell Ahart 1980-8-12 2571 Yuba Slate Creek, west of where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  CHSC47528  Juncus bufonius var. bufonius Lowell Ahart 1979-6-3 1916 Yuba About 1 mile south of Challenge. 670 Comment
  CHSC47531  Juncus bufonius var. bufonius Lowell Ahart 1980-8-12 2563 Yuba Debris dam across Slate Creek, west of where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  CHSC97233  Juncus bufonius var. bufonius Lowell Ahart 2007-6-22 14216 Yuba Sides of a new ditch, near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  RSA726654  Juncus bufonius var. bufonius L. Ahart 2007-6-22 14216 Yuba 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  UCR231318  Juncus bufonius var. bufonius George K. Helmkamp, E. A. Helmkamp 2011-5-6 17194 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.9 mile west of the junction at Camp Far West Reservoir 65 Comment
  CHSC47537  Juncus bufonius var. occidentalis Lowell Ahart 1979-6-3 1917 Yuba On the bottom and sides of a small man made depression in a logged over area, about 1 mile south of Challenge. 670 Comment
  SEINET7067144  Juncus bufonius var. occidentalis A. G. Vestal 1947-4-30 s.n. Yuba About 5.1 miles west of Smartville. Coordinate datum: NAD27. UTM Zone 10, 641421mE, 4340515mN. Comment
  CHSC97505  Juncus capitatus Lowell Ahart 2007-5-12 13819 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  RSA220008  Juncus capitatus J. T. Howell, Gordon H. True 1967-6-13 3553 Yuba ca. 5 miles E of Wheatland and 1 mile N of Bear River. 55 Comment
  JEPS113712  Juncus covillei Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14294 Yuba On the south side of Hampshire Creek, just east of the cement dam on Hampshire Creek, east of a large wet meadow, about 100 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills 1021 Comment
  RSA653951  Juncus covillei Beecher Crampton 1966-6-14 7759 Yuba 1 mile east of Brownsville on La Porte road. 732 Comment
  CHSC100329  Juncus cyperoides Lowell Ahart 2008-7-9 15049 Yuba In a small meadow, about 50 yards northwest of the dirt road (road now destroyed), north part of the Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills. 1015 Comment
  CHSC115469  Juncus cyperoides L. P. Janeway; Emily Meigs Doe 2015-4-29 11669 Yuba Northern High Sierra Nevada. Plumas National Forest; along Oroville-Wyandotte Canal at the eastern-most end of Road 19N32; about 0.8 km east of Weiss Hill Road and Forbestown Road. 838 Comment
  CHSC97199  Juncus cyperoides Lowell Ahart 2007-8-7 14420 Yuba Along a small stream, about 100 yards northwest of the dirt road, north part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS115042  Juncus cyperoides Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14498 Yuba In a small meadow, about 50 yards northwest of the dirt road, north part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills 1015 Comment
  RSA794388  Juncus cyperoides P. F. Zika, Barbara L. Wilson, L. Ahart, L. P. Janeway 2011-8-5 25717 Yuba Southwest edge of Hampshire Meadow, 1 air mile east of Clipper Mills, northern Sierra Nevada Highlands. 1025 Comment
  UCR259341  Juncus cyperoides Glenn L. Clifton 2001-8-20 37290 Yuba Hampshire Creek 1027 Comment
  CHSC97076  Juncus dubius Lowell Ahart 2007-8-7 14423 Yuba In shallow water, open meadow, on the southeast part of Hampshire Creek Meadow, about 50 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS104082  Juncus dubius Lowell Ahart 2003-7-2 10346 Yuba In a small stream, on the w side of Fountain Hill Rd, ca 3 mi south of Oregon Hill Rd, ca 1/2 mi (air) n of Fountain House Hill, ca 3 mi (air) ne of Dobbins. 841 Comment
  JEPS113840  Juncus dubius Lowell Ahart 2007-8-7 14423 Yuba In shallow water, open meadow, on the southeast part of Hampshire Creek Meadow, about 50 yards east of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  UCD80385  Juncus effusus CNPS SN Foothill Team 2005-7-5 SNNR 0473 a Yuba CDFG Daugherty Hill Wildlife Area. 280 Comment
  CHSC84206  Juncus effusus subsp. pacificus Lowell Ahart 2003-7-2 10347 Yuba In a small stream, on the west side of Fountain Hill Road, about 3 miles south of Oregon Hill Road, about 1/2 mile (air) north of Fountain House Hill, about 3 miles (air) northeast of Dobbins. 841 Comment
  CHSC96966  Juncus effusus subsp. pacificus Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-13 14301 Yuba About 30 yards east of a poor dirt road, about 1 1/2 miles (air) northeast of Clipper Mills. 1045 Comment
  JEPS104258  Juncus effusus subsp. pacificus Lowell Ahart 2003-7-2 10347 Yuba In a small stream, on the w side of Fountain Hill Rd, ca 3 mi south of Oregon Hill Rd, ca 1/2 mi (air) n of Fountain House Hill, ca 3 mi (air) ne of Dobbins. 841 Comment
  JEPS113769  Juncus effusus subsp. pacificus Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14301 Yuba About 30 yards east of a poor dirt road, about 1 1/2 miles (air) northeast of Clipper Mills 1045 Comment
  JEPS113846  Juncus effusus subsp. pacificus Lowell Ahart 2007-8-7 14406 Yuba Hampshire Creek Meadow, about 80 yards west of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  JEPS63892  Juncus effusus subsp. pacificus W. L. Jepson 1934-7-29 16758 Yuba Marysville Comment
  RSA691012  Juncus effusus subsp. pacificus L. Ahart 2003-7-2 10347 Yuba On the west side of Fountain Hill Road, about 3 miles south of Oregon Hill Road, about 1/2 mile (air) north of Fountain House Hill, about 3 miles (air) northeast of Dobbins. 842 Comment
  CHSC47551  Juncus ensifolius Lowell Ahart 1969-7-15 30 Yuba About 10 miles south of La Porte. 914 Comment
  CHSC47552  Juncus ensifolius Lowell Ahart 1980-8-12 2539 Yuba On a large gravel bar in Slate Creek, west of where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  UCD141528  Juncus ensifolius G. K. Helmkamp; E. A. Helmkamp 2006-10-10 11527 Yuba Northern Sierra Nevada Mountains Foothills; along Hwy CA-49 just north of the Nevada County line at the Middle Yuba River bridge. 451 Comment
  CHSC47548  Juncus exiguus Lowell Ahart 1981-6-13 2857 Yuba On the bottom of a small stream, about 1/2 mile west of McGinn Hill, east of Loma Rica. 274 Comment
  UCD141542  Juncus hemiendytus L. Ahart 1980-5-25 2352 Yuba on the north side of New York Flat Road, west of the Cemetery, north of Brownsville. 731 Comment
  CHSC84239  Juncus howellii Lowell Ahart 2003-7-6 10364 Yuba In a meadow, east of the power line, about 60 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  JEPS113845  Juncus laccatus Lowell Ahart 2007-8-7 14414 Yuba On the east side of a small pond, on the west side of the dirt road, Hampshire Creek Meadow, about 5 yards west of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  RSA727523  Juncus laccatus L. Ahart 2007-8-7 14414 Yuba About 1 mile (air) east of Clipper Mills. 1021 Comment
  CHSC107309  Juncus occidentalis L. P. Janeway 2011-7-5 10493 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 480 m northeast of Marysville Road. Near top of the saddle, springtime wet meadow, along shallow depression where a little water pools while draining from meadow. 756 Comment
  CHSC84399  Juncus occidentalis Lowell Ahart 2003-7-6 10365 Yuba Near a meadow, east of the power line, about 30 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  JEPS104245  Juncus occidentalis Lowell Ahart 2003-7-6 10365 Yuba Near a meadow, e of the power line, ca 30 yd w of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  CHSC63198  Juncus orthophyllus Lowell Ahart 1994-6-27 7378 Yuba Near the northeast side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles northeast of Strawberry Valley. 1219 Comment
  JEPS95407  Juncus orthophyllus Lowell Ahart 1994-6-27 7378 Yuba 4 mi NE of Strawberry Valley (near NE side of Schwartz Meadow, E side of La Porte Road) 1219 Comment
  CHSC106634  Juncus tenuis Peter F. Zika 2010-6-22 24977 Yuba Northern Sierra Nevada Foothills (n SNF); Spring Valley Road NE of Browns Valley Ridge. 90 Comment
  CHSC47571  Juncus tenuis Lowell Ahart 1980-8-12 2538 Yuba Slate Creek, west of where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  CHSC97761  Juncus tenuis Lowell Ahart 2007-11-1 14539 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  JEPS103390  Juncus tenuis Lowell Ahart 2002-10-9 9951 Yuba Area E of a spring, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS113858  Juncus tenuis Lowell Ahart 2007-8-7 14428 Yuba South of Hampshire Creek Meadow, graded edges of the dirt road, about 1 mile (air) east of Clipper Mills. On the east side of a small pond, on the west side of the dirt road 1021 Comment
  JEPS115068  Juncus tenuis Lowell Ahart 2007-11-1 14539 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  RSA726438  Juncus tenuis L. Ahart 2007-11-1 14539 Yuba About 1 mile northwest of Old Camptonville Road, about 1.5 miles (air) west of Camptonville. 627 Comment
  CHSC83059  Juncus usitatus Lowell Ahart 2002-10-8 9947 Yuba On the edge of a pond, about 100 yards north of Long Ravine Road, about 300 yards southeast of the intersection of Camp Far West Road and Long Ravine Road there is a poor gate on the north side of the road, north of Camp Far West Reservoir. 121 Comment
  JEPS113746  Juncus usitatus Lowell Ahart 2007-6-30 14234 Yuba Near and west of new road pad, about 350 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC47579  Juncus xiphioides Lowell Ahart 1979-6-25 1954 Yuba Along the gutter of Peterson Ridge Road, about 2 miles east of Challenge. 640 Comment
  UC423487  Keckiella breviflora David D. Keck 1930-7-25 984 Yuba Bullards Bar Reservoir; Sierra Nevada 1500 Comment
  UCD123765  Keckiella breviflora var. glabrisepala Barbara Yungert 1974-5-13 149 Yuba along dirt road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  NY790334  Keckiella lemmonii L. Ahart 1980-7-25 2484 Yuba Near Slate Creek. 1200 Comment
  UC2016501  Keckiella lemmonii Richard Olmstead 1986-6-14 845 Yuba Entrance to the Oregon Creek Picnic Ground. Jct of Oregon Cr. with middle fork Yuba River. Comment
  CDA14570  Kelloggia galioides G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3049 Yuba La Porte _ Quincy Road 3.6 miles northeast of Strawberry Valley at the Plumas county line. 1280 Comment
  CHSC113175  Kickxia elatine Lowell Ahart 2013-11-30 19300 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  JEPS121313  Kickxia elatine Lowell Ahart 2013-11-30 19300 Yuba On the sides of a deep wash (Willow Glen Creek), NW of Dry Creek, below the high water line of Collins Lake, about 100 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  UCD80884  Kickxia elatine Robert E. Preston 2007-9-21 2577 Yuba 3.5 mi S of Olivehurst, at jct Plumas-Arboga Rd. and Old Marysville Rd. 14 Comment
  CAS-BOT-BC180848  Kochia scoparia Lemmel Jr. Osborne 1948-9-5 s.n. Yuba Near Marysville Comment
  CAS-BOT-BC180849  Kochia scoparia Lemmel Jr. Osborne 1948-9-15 s.n. Yuba Near Marysville Comment
  UCD85744  Koeleria macrantha Beecher Crampton 1957-6-5 4141 Yuba 1 mile east of Stanfield Hill. Comment
  CHSC112952  Lactuca serriola L. P. Janeway 2014-11-6 11581 Yuba Northern High Sierra Nevada. Plumas National Forest; along Ore-gon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km north-west of Summit Hill; slope above Burnt Bridge Creek. 792 Comment
  CHSC112371  Lactuca virosa L. P. Janeway 2014-6-25 11420 Yuba Northern High Sierra Nevada. Plumas National Forest; Along Oregon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km northwest of Summit Hill; slope above Burnt Bridge Creek. 792 Comment
  CHSC112372  Lactuca virosa L. P. Janeway 2014-6-25 11420 Yuba Northern High Sierra Nevada. Plumas National Forest; Along Oregon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km northwest of Summit Hill; slope above Burnt Bridge Creek. 792 Comment
  JEPS121747  Lactuca virosa L. P. Janeway 2014-6-26 11425 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. Comment
  UCD133618  Lagophylla glandulosa Barbara Yungert 1974-5-23 175 Yuba Along fence of F 1-14 and F 1-13 project areas, east of Forbes Hill, Sierra Foothill Field Station. Comment
  CAS-BOT-BC337963  Lasthenia californica Irene Creps 1955-4-9 18 Yuba Five miles Northeast of Wheatland Comment
  CAS-BOT-BC352767  Lasthenia fremontii Gordon H. True 1963-4-17 1179 Yuba About 10 miles E of Marysville, on Marysville-Grass Valley Hwy 30 Comment
  CHSC97671  Lasthenia fremontii Lowell Ahart 2007-5-12 13771 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113621  Lasthenia fremontii Lowell Ahart 2007-5-12 13771 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UC665557  Lasthenia fremontii Annetta Carter 1940-4-21 1528 Yuba 4.3 mi se Marysville (on road to Spenceville); Sacramento Valley 30 Comment
  POM264473  Lasthenia fremontii Annetta Carter 1628 Yuba 4.3 miles SE of Marysville on road to Spenceville. 30 Comment
  SBBG28004  Lasthenia fremontii A. Carter 1940-4-21 1528 Yuba 4.3 mi SE of Maryville rd to Spenceville 30 Comment
  CAS-BOT-BC355510  Lasthenia glaberrima Carl B. Wolf 1937-5-18 8735 Yuba Sacramento Valley, 2 mi. so. of Marysville. 18 Comment
  UCR47660  Lasthenia glaberrima C. B. Wolf 1937-5-18 08735 Yuba SacramenoValley, 2 mi south of Marysville 18 Comment
  UCR169010  Lasthenia gracilis David Charlton 2005-5-16 8009 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  CHSC112856  Lathyrus brownii L. P. Janeway 2014-4-22 11230 Yuba Northern High Sierra Nevada. Plumas National Forest; in shallow bowl at head of Little Oregon Creek; 0.5 km southwest of Oregon Hill Road; 3.4 air-km south-southeast of Challenge. 823 Comment
  CHSC116216  Lathyrus latifolius Lowell Ahart 2015-6-16 20247 Yuba Near the water ditch, about 100 yards south of the poor dirt road, about 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. 829 Comment
  CHSC43421  Lathyrus sulphureus Lowell Ahart 1979-6-3 1919 Yuba About 1 mile south of Challenge. 640 Comment
  SBBG3370  Lathyrus sulphureus H. and M. Dearing 1939-5-8 3298 Yuba N of Bullards Bar Dam on Yuba River Comment
  UCD106449  Lathyrus sulphureus Kathleen Keliher 1975-5-13 103 Yuba Along Road 4, near Meathook gate, L 1-21 project area, Sierra Foothill Field Station. 243 Comment
  UCD106457  Lathyrus sulphureus W. R. Powell 1967-6-13 1457 Yuba 1 1/2 miles northeast of Challenge. Comment
  UCR234193  Layia chrysanthemoides George K. Helmkamp, E. A. Helmkamp 2011-4-10 17165 Yuba Sacramento Valley, along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland 44 Comment
  CAS-BOT-BC321710  Layia fremontii Gordon H. True 1966-4-7 2679 Yuba About 5 miles E of Wheatland and 1 mile N of Bear River. 54 Comment
  CAS-BOT-BC321751  Layia fremontii Gordon H. True 1963-4-17 1184 Yuba About 10 miles E of Marysville, on Marysville-Grass Valley Hys. 30 Comment
  CAS-BOT-BC321752  Layia fremontii Bruce G. Baldwin 1988-3-21 687 Yuba 3.3 miles W of junction with County Rd E21 (road to Collins Lake, Bullards Bar Reservoir) along Calif. State Hwy 20. Comment
  CHSC116267  Leersia oryzoides Lowell ahart 2015-11-19 20682 Yuba 100 yards or more north of the spillway area, below the high water line, west side of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  CHSC76312  Leersia oryzoides Lowell Ahart 1999-9-17 8239 Yuba South of Woodruff Lane, just east of Matthews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. In a rice field. 24 Comment
  CDA32426  Leersia oryzoides L. Ahart 1999-9-17 8239 Yuba South of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer s rice dryer, about 5 miles (air) northeast of Marysville. Comment
  CAS-BOT-BC534940  Lemna minuta Lowell Ahart 1981-6-13 2858 Yuba Near McGinn Hill, Loma Rica. Sierra Nevada, California. 300 Comment
  JEPS121301  Leontodon saxatilis Lowell Ahart 2013-11-30 19304 Yuba On the SW side of a deep wash (Willow Glen Creek), NW of Dry Creek, below the high water line of Collins Lake, about 100 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  CHSC96482  Leontodon saxatilis subsp. longirostris Lowell Ahart 2007-4-17 13681 Yuba Along a poor dirt road, west of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  CHSC97496  Leontodon saxatilis subsp. longirostris Lowell Ahart 2007-5-14 13874 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113101  Leontodon saxatilis subsp. longirostris Lowell Ahart 2007-4-17 13681 Yuba Along a poor dirt road, west of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  JEPS115028  Leontodon saxatilis subsp. longirostris Lowell Ahart 2007-11-1 14532 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  JEPS124269  Leontodon saxatilis subsp. longirostris Lowell Ahart 2015-11-19 20669 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  UCR231337  Leontodon taraxacoides George K. Helmkamp, E. A. Helmkamp 2011-5-6 17180 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.3 mile north of the junction with Hokan Lane, vicinity of Camp Far West Reservoir 105 Comment
  UCR257542  Leontodon taraxacoides George K. Helmkamp 2014-4-17 22760 Yuba Sierra Nevada Foothills, Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville 264 Comment
  CDA42843  Leontodon taraxacoides subsp. longirostris L. Ahart 2011-6-7 17379 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. Comment
  RSA726962  Leontodon taraxacoides subsp. longirostris L. Ahart 2007-5-14 13874 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  UCR258220  Leontodon taraxacoides subsp. taraxacoides George K. Helmkamp, Amy Barnes 2013-3-28 20258 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  CHSC113649  Lepechinia calycina L. P. Janeway 2014-5-12 11253 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 2.1 air km south-southeast of Oregon Peak, 0.2 km northeast of Marysville Road. 762 Comment
  UC1124465  Lepechinia calycina M. A. Elvin 1933-7-1 36 Yuba 1 1/2 mi S of Virginia Ranch 457 Comment
  CAS-BOT-BC88805  Lepidium campestre Lowell Ahart 1979-6-3 s.n. Yuba 1 mile south of Challenge. 550 Comment
  UCR197805  Lepidium campestre George K. Helmkamp, E. A. Helmkamp 2008-5-20 13459 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  UCD82842  Lepidium campestre Robin McMaster 1973-6-24 482 Yuba Oregon Creek Campground. Comment
  CHSC95094  Lepidium latifolium L. P. Janeway; Erin Brandy 2006-7-10 8809 Yuba Northern High Sierra Nevada. West side of Slate Creek just north of the Scales Road crossing ('35' Road); 10 m west of the creek; between dirt road miner's campsite access and the creek, close to the campsite. 905 Comment
  CHSC3319  Lepidium nitidum M. Gregg 1966-3-13 40 Yuba Northeast of Marysville, on the Slaughter House Rd. 1/4 mile from the levee. Comment
  CHSC97641  Lepidium nitidum var. nitidum Lowell Ahart 2007-5-12 13783 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  CDA25061  Lepidium strictum D. L. Wilson 1976-4-5 Yuba City Park, Yuba Street, Marysville. 0 Comment
  CHSC97638  Leptosiphon bicolor Lowell Ahart 2007-5-14 13878 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCD82077  Leptosiphon bicolor Robin McMaster 1973-4-7 228 Yuba Browns Valley, Peoria Cemetery. Comment
  CHSC45456  Leptosiphon harknessii Lowell Ahart 1980-8-12 2568 Yuba On a gravel bar, a little below where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  CHSC63155  Leptosiphon harknessii Lowell Ahart 1994-6-27 7379 Yuba Near the east side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  CAS-BOT-BC341757  Lessingia nana Gordon H. True; J. T. Howell 1967-6-13 3558 Yuba Ca. 5 miles east of Wheatland and 1 mile north of Bear River 54 Comment
  UCD77822  Lessingia nana Robert E. Preston 2001-7-30 1753 Yuba Beale Air Force Base, in open area at north end of taxiways, 39 Comment
  CHSC83071  Lessingia nemaclada Lowell Ahart 2002-10-10 9979 Yuba On the east side of the dirt road, east of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20. 166 Comment
  JEPS103394  Lessingia nemaclada Lowell Ahart 2002-10-10 9979 Yuba On the E side of the dirt road, E of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, ca 2 miles (air) N of Bridgeport, ca 18 miles N of Highway 20. 166 Comment
  UCR263565  Lessingia nemaclada Lowell Ahart 2002-10-10 9979 Yuba Sierra Nevada Mtns., E of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, c. 2 miles (air) N of Bridgeport, c. 18 miles N of Highway 20 166 Comment
  CAS-BOT-BC341779  Lessingia nemaclada Charles Williams 1981-9-8 s.n. Yuba Near Brownsville 609 Comment
  UC1069831  Lessingia virgata M. A. Elvin 1933-6-7 24 Yuba 4 mi sw McCourtney Crossing; Smartsville Quadrangle Comment
  UCD33887  Lessingia virgata Beecher Crampton 1974-10-11 9094 Yuba 3 miles S.W. of Brown's Valley along Hwy. 20. Comment
  RSA654105  Lessingia virgata Beecher Crampton 1974-10-11 9094 Yuba 3 miles southwest of Brown's Valley along Highway 20 Comment
  UCD92453  Leymus X multiflorus Collector Unknown 1948-1 s.n. Yuba Near Marysville. Comment
  UC1131555  Leymus cinereus F. W. Embree 1934-4-30 Yuba 4 mi ene Marysville B.M.; Marysville Quadrangle Comment
  CAS-BOT-BC130619  Lilium humboldtii Mrs. J. E. Cramsie 1923-6-14 s.n. Yuba Smartsville Comment
  CAS-BOT-BC130623  Lilium humboldtii Albert Vollmer 1949-7-6 13 -E Yuba 1 mile from Challenge on Challenge-Camptonville Road Comment
  JEPS125980  Lilium humboldtii subsp. humboldtii D. W. Taylor 2001-6-18 17784 Yuba Near Woodleaf, along the LaPorte road from the Butte County line to about 1 mile SW, scattered growing along road shoulder for a distance of 1/2 mile. Comment
  RSA65288  Lilium humboldtii subsp. humboldtii Albert M. Vollmer, L. Beane 1951-07 s.n. Yuba Brownsville Comment
  UCD37879  Limnanthes alba Beecher Crampton 1962-4-24 6303 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  JEPS113391  Limnanthes alba subsp. alba Lowell Ahart 2007-5-14 13866 Yuba Damp bare red soil, bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  SJSU10806  Limnanthes douglasii subsp. rosea L. J. Ericksen 1955-4-17 118 Yuba 2 mi S of Marysville Comment
  CHSC47690  Limnophila X ludoviciana Lowell Ahart 1977-9-25 1593 Yuba In a rice field on the Sam Shintaffer Farm, about 2 miles north-east of Marysville. 30 Comment
  CDA6279  Limnophila X ludoviciana L. Ahart 1977-9-25 Yuba Sam Shintaffer Farm, 2 miles northeast of Marysville. 0 Comment
  CHSC43512  Limosella acaulis Lowell Ahart 1977-9-25 1592 Yuba On Shintaffer Farms, about 2 miles north-east of Marysville. 32 Comment
  JEPS95981  Limosella acaulis Lowell Ahart 1999-9-17 8247 Yuba Sam Shintaffer Farm; south of Woodruff Lane; south of Mathews Road; 100 yards south of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  CHSC76292  Limosella aquatica Lowell Ahart 1999-9-17 8247 Yuba Sam Shintaffer Farm, south of Woodruff Lane, south of Mathews Road, 100 yards south of Sam Shintagger's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  UCR118893  Linanthus bicolor Beecher Crampton 1962-4-24 6280 Yuba Central Sierra Nevada foothills, University of California Foothill Field Station, 5 miles east of Brown's Valley, 2.5 miles NNW of Smartville 366 Comment
  UC718540  Linanthus filipes Carl B. Wolf 1937-5-13 Yuba 1.2 mi below Stanfield Hill (on road to Browns Valley); Sierra Nevada Foothills 274 Comment
  JEPS95375  Linanthus harknessii Lowell Ahart 1994-6-27 7379 Yuba 4 mi NE of Strawberry Valley (near E side of Schwartz Meadow, E side of La Porte Road) 1219 Comment
  JEPS103441  Lindernia dubia var. anagallidea Lowell Ahart 2002-10-9 9971 Yuba On the S bank of Lost Creek, below the high water line of Sly Creek Reservoir, ca 200 yards SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS124261  Lindernia dubia var. anagallidea Lowell Ahart 2015-11-19 20681 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  JEPS94975  Lindernia dubia var. anagallidea Lowell Ahart 1997-8-13 7860 Yuba ca. 2.25 mi. (air) e. Borwn's Valley (on s. side of Scott Forbes Rd., 0.25 mi. e. of intersection of Scott Forbes Rd. & Peoria Rd., just e. of Gray Dr.) Comment
  JEPS95147  Lindernia dubia var. anagallidea Lowell Ahart 1997-8-13 7860 Yuba about 2 1/4 air mi e of Borwn's Valley (on s side of Scott Forbes Road, 1/4 mi e of intersection of Scott Forbes Road and Peoria Road, just e of Gray Drive) 91 Comment
  RSA0012080  Linum bienne George K. Helmkamp, E. A. Helmkamp 2011-5-6 17208 Yuba junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg ) of Wheatland. 56 Comment
  UCR231320  Linum bienne George K. Helmkamp, E. A. Helmkamp 2011-5-6 17208 Yuba East edge of Sacramento Valley, junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg. ) of Wheatland 56 Comment
  UCD150657  Linum usitatissimum Collector unknown 1976-5-15 205 Yuba 0.9 mi S of Camptonville on Hwy 49. 762 Comment
  CDA14562  Lithocarpus densiflorus var. densiflorus G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3039 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  CAS-BOT-BC36025  Lithocarpus densiflorus var. densiflorus Alice Eastwood 1918-4-7 6808 Yuba Camptonville Comment
  CHSC11374  Lithocarpus densiflorus var. echinoides Lowell Ahart 1966-8-12 Yuba Near Challenge. 609 Comment
  CAS-BOT-BC430983  Lithophragma bolanderi Junea Kelley 1920-4-24 s.n. Yuba Los Vergils Comment
  CHSC41218  Lithophragma campanulatum J. D. Jokerst 1984-4-23 1985 Yuba Ca. 1/4 mile N of the North Fork of the Yuba River at Wambo Bar. Comment
  CAS-BOT-BC325968  Lithospermum californicum Lowell Ahart 1979-6-25 s.n. Yuba 2 miles E of Challenge. 700 Comment
  CHSC46758  Lithospermum californicum Lowell Ahart 1980-6-19 2410 Yuba Along the edge of the dirt road, about 4 miles east of Challenge. 822 Comment
  JEPS113634  Logfia gallica Lowell Ahart 2007-5-12 13768 Yuba Along the road to the power towers, about 20 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CAS-BOT-BC342375  Logfia gallica Alice Eastwood 1921-5-22 10534 Yuba Los Vergils Comment
  CHSC97678  Lolium multiflorum Lowell Ahart 2007-5-14 13854 Yuba Bottom of swales and vernal pools, about 30 yards east of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville. 29 Comment
  SEINET4671403  Lolium multiflorum A. Tiehm 1975-1 639 Yuba U.C. Sierra Foothill Field Station 198 Comment
  CAS-BOT-BC269071  Lolium perenne Lowell Ahart 1981-6-13 2842 Yuba Along new gravel road, NE side of McGinn Hill, east of Loma Rica 300 Comment
  JEPS113393  Lomatium caruifolium var. denticulatum Lowell Ahart 2007-5-14 13857 Yuba In the center of a dirt road, 60 yards north of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville 29 Comment
  UCD112039  Lomatium marginatum Christopher Mallek 2008-5-5 IC3- 12 Yuba Indiana Creek. 617 Comment
  JEPS113330  Lomatium marginatum var. marginatum L. P. Janeway 2006-5-24 8622 Yuba Northern Sierra Nevada Foothills. East side of Ponderosa Way 1.3 km north of La Porte Road & Brownsville. Comment
  CAS-BOT-BC240567  Lonicera hispidula Lowell Ahart 1980-6-19 2402 Yuba 3 miles south-east of Challenge 800 Comment
  CHSC116217  Lonicera hispidula Lowell Ahart; Leigh Johnson 2015-6-10 20225 Yuba On the southwest side of the road just before the bridge across New York Flat Creek, along New York Flat Road, about 1/4 mile northwest of La Porte Road. 614 Comment
  CDA14568  Lonicera hispidula var. vacillans G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3046 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  UCD137351  Lonicera interrupta Barbara Yungert 1974-5-23 180 Yuba west of road, SC-14 project area, Sierra Foothill Field Station. Comment
  UCD23260  Lonicera interrupta W. R. Powell 1968-5-24 1551 Yuba 5 miles SSE of Challenge, 3/4 miles south of Greenville. 640 Comment
  RSA0074187  Lonicera involucrata M. A. Elvin 1933-7-14 54 Yuba Greenville. Comment
  UC567158  Lonicera involucrata var. involucrata M. A. Elvin 1933-7-14 54 Yuba Greenville Smartsville Quadrangle 762 Comment
  UCD106713  Lotus corniculatus Collector unknown 1942-5-22 s.n. Yuba location unknown. Comment
  JEPS118361  Lotus humistratus Lowell Ahart 2011-6-7 17392 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCR169020  Lotus micranthus David Charlton 2005-5-16 8010 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  SEINET7042628  Lotus micranthus A. G. Vestal 1963-5-7 s.n. Yuba Ca. 3.5 miles north of Wheatland. Camp Far West quadrangle UTM Zone 10, 640908mE, 4323324mN. Comment
  JEPS118356  Lotus purshianus var. purshianus Lowell Ahart 2011-6-7 17393 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  RSA795538  Lotus purshianus var. purshianus L. Ahart 2011-6-7 17393 Yuba Huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 air miles northeast of Marysville. 66 Comment
  SEINET3563125 Image available Lotus purshianus var. purshianus G. K. Helmcamp, E. A. Helmkamp 2008-10-6 14201 Yuba Sacramento Valley: junction of CA-65 and Ostrom No. 3 Road, SE of Olivehurst 24 Comment
  CHSC83042  Ludwigia palustris Lowell Ahart 2002-10-9 9969 Yuba On the south bank of Lost Creek, below the high water line of Sly Creek Reservoir, about 200 yards southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CHSC10847  Ludwigia peploides subsp. peploides Lowell Ahart 1966-9-5 Yuba San Shintaffer Ranch. 42 Comment
  CAS-BOT-BC198287  Lupinus Charles Piper Smith 1949-4-16 49108 Yuba Rackerby, 1.5 miles east - Brownsville Road Comment
  RSA318943  Lupinus Patricia Wilder 1971-6-23 5210 Yuba Marysville Road, 7.3 miles east of junction with Oregon Hill Road. 610 Comment
  RSA647528  Lupinus Hobart Onstod 1946-3-26 s.n. Yuba South Marysville Comment
  UC710389  Lupinus albifrons C. P. Smith 1946-5-2 46252 Yuba Hiway 20, 0.3 mi e Smartville; e of Smartville Comment
  UC710391  Lupinus albifrons C. P. Smith 1946-5-2 46257 Yuba Browns Valley Road 7.1 mi sw Brownsville Comment
  UC710392  Lupinus albifrons C. P. Smith 1946-5-2 46261 Yuba Browns Valley Road 10 mi sw Brownsville Comment
  CAS-BOT-BC196029  Lupinus albifrons var. albifrons Saichi Kawahara 1968-4-13 279 Yuba Highway 20, at north bank of Yuba River, Park's Bar 91 Comment
  CAS-BOT-BC196033  Lupinus albifrons var. albifrons Charles Piper Smith 1946-5-2 46252 Yuba Smartville, 0.3 miles east on Highway 20 Comment
  JEPS95156  Lupinus albifrons var. albifrons Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7727 Yuba about 17 mi ne of Marysville (on bank of Browns Valley Water Ditch, n of the poor dirt road, s of Dry Creek, about 1 1/4 mi e of Scott Forbes Road (Long Bar Rd)); Browns Valley Water Ditch 198 Comment
  UCR196984  Lupinus albifrons var. collinus George K. Helmkamp, E. A. Helmkamp 2008-5-20 13469 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  CAS-BOT-BC196316  Lupinus albifrons var. flumineus Charles Piper Smith 1949-4-16 49106 Yuba Rackerby, 2.4 miles east - Brownsville Road Comment
  UCD106422  Lupinus andersonii W. R. Powell 1968-5-15 1500 Yuba on Fountain House Road, 2 miles NE of Dobbins. 792 Comment
  CHSC108213  Lupinus benthamii Lowell Ahart 2011-6-7 17395 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCD33241  Lupinus benthamii Beecher Crampton 1967-5-17 7939 Yuba Yuba County, 5 miles east of Brown's Valley, sierra foothill range field station. Comment
  SBBG29027  Lupinus benthamii B. Crampton 1967-5-17 Yuba 5 mi E of Brown's Valley Comment
  SEINET11071818 Image available Lupinus benthamii Kennth Wagnon 1963-6-11 Yuba End of Scott-Forbes Road (T.16N, S.10), vicinity of Sierra Foothills Range Field Station, ca. 3 miles north of Smartville 335 Comment
  UCD107038  Lupinus benthamii K. A. Wagnon 1963-6-11 s.n. Yuba at roadside at end of Scott-Forbes Road, vicinity of Sierra Foothills Range Field Station, ca. 3 miles north of Smartville. 335 Comment
  UCD107041  Lupinus benthamii Barbara Yungert 1974-4-12 22 Yuba Along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  JEPS107408  Lupinus benthamii var. opimus Lowell Ahart 2005-3-11 11611 Yuba S steep slope of large rock outcrop, W of poor dirt road, ca. 1/2 mi W of Marysville Rd, ca. 1/2 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/2 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 395 Comment
  UC710390  Lupinus bicolor C. P. Smith 1946-5-1 46244 Yuba 1.2 mi n Hiway 99e Wheatland; Wheatland - 1.2 mi n Hiway 99e Comment
  UCD35789  Lupinus bicolor Beecher Crampton 1962-4-24 6261 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  SEINET7042565 Image available Lupinus bicolor A. G. Vestal 1963-5-7 s.n. Yuba Along Ostrom Road east of Route 99. Wheatland quadrangle UTM Zone 10, 630286mE, 4325478mN. Comment
  SEINET7063123 Image available Lupinus bicolor A. G. Vestal 1963-5-29 s.n. Yuba Olivehurst-Smartville Road 0.4 mile west southwest of Road to Beale Air Force Base. Road side in weedy grassland. Comment
  UCD107336  Lupinus bicolor Barbara Yungert 1974-4-19 73 Yuba West of four wheel drive road, Jack-Ass Joe area, F-2 project area, Sierra Foothill Station. Comment
  CHSC41210  Lupinus latifolius J. D. Jokerst 1984-4-23 1981 Yuba Slopes ca 1/4 mile N of the North Fork Yuba River at Wambo Bar. Comment
  UCR169082  Lupinus microcarpus David Charlton 2005-5-16 8000 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  CHSC12740  Lupinus microcarpus var. densiflorus D. Huffmaster 1974-4-26 Yuba Found ca. .4 mi nw of junction Hwy. 70 and 24th street in Maysville along the railroad tracks. 18 Comment
  CHSC59318  Lupinus microcarpus var. densiflorus Thomas J. Van Wagner 1992-3-12 16 Yuba Scattered groups of plants along s berm State Highway 20, ca. 200 m e Marysville Rd. ca. 24 km ene Marysville. 36 Comment
  UC710393  Lupinus nanus C. P. Smith 1946-4-25 46220 Yuba Honcut Road 2.2 mi n Loma Rica; n <of> Loma Rica Comment
  UC710394  Lupinus nanus C. P. Smith 1946-4-25 46221 Yuba Honcut Road 3.8 mi n Loma Rica Comment
  UC710404  Lupinus nanus C. P. Smith 1946-5-1 46243 Yuba Hiway 99e, 1.2 mi n Wheatland; Wheatland - 1.2 mi n Hiway 99e Comment
  UC710408  Lupinus nanus C. P. Smith 1946-5-2 46246 Yuba Hammonton Road 1.7 mi e South Marysville; e of South Marysville Comment
  UCR196819  Lupinus nanus George K. Helmkamp, E. A. Helmkamp 2008-5-20 13463 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  UC710406  Lupinus pachylobus C. P. Smith 1946-5-2 46259 Yuba Browns Valley Road 7.1 mi sw Brownsville; sw of Brownsville Comment
  SD50709  Lupinus polyphyllus subsp. superbus Darley F. Howe 1959-8-2 2780 Yuba 1.0 mile west of Yuba Pass Comment
  UCR196997  Lupinus polyphyllus var. burkei George K. Helmkamp, E. A. Helmkamp 2008-5-20 13490 Yuba Foothills, northern Sierra Nevada Mountains, Camptonville, at the junction of Henness Pass Road and CA-49 823 Comment
  JEPS107417  Lupinus stiversii Lowell Ahart 2005-3-11 11610 Yuba S steep slope of large rock outcrop, W of poor dirt road, ca. 1/2 mi W of Marysville Rd, ca. 1/2 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/2 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 395 Comment
  UC1129712  Lupinus stiversii F. W. Embree 1934-4-30 46 Yuba 3 1/2 mi ene Marysville BM; Marysville Quad., ene of Marysville BM Comment
  UCD109580  Lupinus stiversii Kathleen Keliher 1975-4-30 83 Yuba directly below bridge on State Route 20 near Yuba River. 182 Comment
  UCD109589  Lupinus stiversii Barbara Yungert 1974-5-4 115 Yuba south of rock pile dredgings, north of Yuba River, Sierra Foothill Field Staion. Comment
  CHSC106354  Luzula cascadensis Lowell Ahart 2010-7-27 16914 Yuba On the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. 1219 Comment
  JEPS117663  Luzula cascadensis Lowell Ahart 2010-7-27 16914 Yuba On the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam 1219 Comment
  JEPS95418  Luzula cascadensis Lowell Ahart 1994-6-27 7395 Yuba Near the south-east side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley 1219 Comment
  UCD142082  Luzula comosa Kathleen Keliher 1975-4-13 61 Yuba Sierra Foothill Field Station. Junction of Lower Cook Road and four wheel drive road, K 1-11 project area, Sierra Foothill Field Station. 243 Comment
  CHSC10768  Luzula macrantha Lowell Ahart 1968-4-21 Yuba Five miles S.E. of Challenge. 609 Comment
  CHSC47580  Luzula macrantha Lowell Ahart 1979-6-3 1915 Yuba About 1 mile south of Challenge. 670 Comment
  CHSC59617  Luzula macrantha Kathleen Keliher 1975-4-13 61 Yuba Junction of Lower Cook Road and four wheel drive road, K 1-11 project area, Sierra Foothill Field Station. 243 Comment
  JEPS112957  Luzula parviflora Dean W. Taylor 2001-6-19 17793 Yuba creek along Forest Road 20N35 tributary to Brushy Creek near Diamond Ravine (ca. 3 air miles SW of Union Hill) 1127 Comment
  CHSC113659  Luzula subsessilis L. P. Janeway 2014-5-20 11257 Yuba Northern High Sierra Nevada. Plumas National Forest; 1.9 air-km southeast of Pike County Peak, 4.1 air-km southeast of Challenge; near Road 29N38. 928 Comment
  CDA28924  Lycopodiella cernua Berger/Saunders 2009-4-9 s.n. Yuba Olivehurst, 1714 Chateau Drive. 0 Comment
  CHSC97134  Lycopus americanus Lowell Ahart 2007-6-30 14237 Yuba Near and west of new road pad, about 250 yards west of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS103439  Lycopus americanus Lowell Ahart 2002-10-8 9942 Yuba On the edge of a pond, ca 100 yards N of Long Ravine Road, ca 300 yards SE of the intersection of Camp Far West Road and Long Ravine Road there is a poor gate on the N side of the road, N of Camp Far West Reservoir. 121 Comment
  JEPS63276  Lycopus americanus W. L. Jepson 1934-7-29 16756 Yuba Marysville Comment
  CHSC108209  Lythrum hyssopifolia Lowell Ahart 2011-6-7 17404 Yuba North of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC97491  Lythrum hyssopifolia Lowell Ahart 2007-5-12 13798 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  RSA0016012  Lythrum hyssopifolia L. Ahart 2007-5-12 13798 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCD103041  Lythrum hyssopifolia Kathleen Keliher 1975-5-28 116 Yuba Near Dry Creek and Rowell's property. Comment
  UCD103077  Lythrum hyssopifolia Barbara Yungert 1974-5-30 186 Yuba Near gate in SC-5 project area, Sierra Foothill Field Station. Comment
  UCR169017  Madia David Charlton 2005-5-16 8032 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  POM186541  Madia elegans D. D. Keck 1932-7-1 1609 Yuba 1 mile SE of log Cabin Service Station, W of Camptonville. 610 Comment
  JEPS95343  Madia exigua Lowell Ahart 1994-6-5 7300 Yuba ca. 3 (air) mi e Forbestown (s side of creek, e side of Forbestown Rd.); Costa Creek 853 Comment
  SEINET7072998  Madia exigua A. G. Vestal 1963-5-30 s.n. Yuba Turn-off to Timbuctoo from Route 20 at Yuba River. UTM Zone 10, 643966mE, 4342277mN. Coordinate datum: NAD27). Comment
  CAS-BOT-BC344593  Madia exigua Alice Eastwood 1921-5-22 10574 Yuba Los Vergils Comment
  UCD134259  Madia exigua Barbara Yungert 1974-5-9 138 Yuba along Road 1, P 1-12 project area, Sierra Foothill Field Station. Comment
  CHSC110320  Madia gracilis L. P. Janeway 2013-6-7 11137 Yuba Northern High Sierra Nevada. Along Oregon Hill Road just south of Little Oregon Creek. 628 Comment
  CHSC37191  Madia gracilis L. Ahart 1982-7-4 3660 Yuba Ca. 1/2 mi e of Brownsville along LaPorte Rd. 700 Comment
  CHSC84236  Madia gracilis Lowell Ahart 2003-7-6 10355 Yuba Near a meadow, east of the power line, about 30 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  HSC100823  Madia gracilis Lowell Ahart 2011-6-7 17380 Yuba ~25 yd. S of gravel bar along the Yuba River, ~150 yd. W of S end of Parks Bar Bridge (Hwy. 20), 15 (air) mi. NE of Marysville. 66 Comment
  JEPS104291  Madia gracilis Lowell Ahart 2003-7-6 10355 Yuba Near a meadow, e of the power line, ca 30 yd w of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  JEPS120532  Madia gracilis L. P. Janeway 2013-6-7 11137 Yuba Northern High Sierra Nevada. Along Oregon Hill Road just south of Little Oregon Creek. Comment
  RSA795345  Madia gracilis L. Ahart 2011-6-7 17380 Yuba Road margin about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 air miles northeast of Marysville. 66 Comment
  SEINET7072983  Madia gracilis A. G. Vestal 1963-5-29 s.n. Yuba About 0.4 mile west of Erle Road on Hammonton-Smartville Road. UTM Zone 10, 638165mE, 4337165mN. Coordinate datum: NAD27). Comment
  UCR189619  Madia gracilis George K. Helmkamp, E. A. Helmkamp 2007-8-29 12836 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 Comment
  CAS-BOT-BC343558  Madia gracilis Lowell Ahart 1982-7-4 3660 Yuba About 1/2 mile east of Brownsville, along La Porte Road 700 Comment
  CAS-BOT-BC343561  Madia gracilis David D. Keck 1930-7-25 985 Yuba Between Bullards Bar Reservoir and Camptonville 600 Comment
  UCD134276  Madia gracilis L. Ahart 1982-7-4 3660 Yuba ca. 1/2 mile east of Brownville, along La Porte Road. 700 Comment
  HSC100825  Madia rammii Lowell Ahart 2007-5-12 13772 Yuba Bottom of swale, ~100 yd. SW of second power tower, ~300 yd. N of Fruitland Rd., 13 (air) mi. NE of Marysville. 28 Comment
  SEINET7072992  Madia yosemitana A. G. Vestal 1963-5-30 s.n. Yuba About 3.3 miles south of Brownsville on Willow Glen Road near Chritterden Ridge. UTM Zone 10, 647294mE, 4365554mN. Coordinate datum: NAD27). Comment
  CHSC40955  Malacothrix floccifera J. D. Jokerst 1984-7-5 2084 Yuba Canyon of the N. Fork Yuba River, N. of the river at its junction with Deadwood Creek. 701 Comment
  UCD134398  Malacothrix floccifera Barbara Yungert 1974-4-17 60 Yuba North of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  CHSC110339  Malus pumila L. P. Janeway; Tim Hanson 2013-4-25 11094 Yuba Northern High Sierra Nevada. Plumas National Forest; 50 m east of Oregon Hill Road between Burnt Bridge Creek and Little Oregon Creek. 640 Comment
  UCD107669  Marah fabacea Barbara Yungert 1974-4-10 16 Yuba Along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  JEPS107451  Marah fabacea var. agrestis Lowell Ahart 2005-3-11 11602 Yuba In center of large rock outcrop, just E of the poor dirt road, ca. 1/2 mi W of Marysville Rd, ca. 1/2 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/2 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 386 Comment
  HSC14232  Marrubium vulgare T. F. Newman 1964-2-22 10 Yuba 10 miles N of Marysville on Alt. 40. 5 mi. on Rameriz Rd. Comment
  CHSC113176  Marsilea vestita subsp. vestita Lowell Ahart 2013-11-30 19317 Yuba On the southeast side of Dry Creek, about 30 yards southeast of Willow Glen Creek, below the high water line of Collins Lake, about 30 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  CHSC97749  Marsilea vestita subsp. vestita Lowell Ahart 2007-11-8 14579 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  JEPS115060  Marsilea vestita subsp. vestita Lowell Ahart 2007-11-8 14579 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan 73 Comment
  CHSC43408  Medicago lupulina Lowell Ahart 1979-6-3 1921 Yuba About 1 mile south of Challenge. 670 Comment
  JEPS95892  Medicago lupulina Lowell Ahart 1999-9-5 8193 Yuba on the disturbed area on the south side of Woodruff Lane; just west of Kimball Lane; about 5 miles (air) northeast of Marysville 24 Comment
  UCD33105  Medicago lupulina Beecher Crampton 1966-6-14 7743 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  SEINET7042629  Medicago lupulina A. G. Vestal 1963-5-7 s.n. Yuba Ca. 3.5 miles north of Wheatland. Camp Far West quadrangle UTM Zone 10, 640908mE, 4323324mN. Comment
  CHSC97677  Medicago polymorpha Lowell Ahart 2007-5-14 13871 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCD37855  Medicago polymorpha Beecher Crampton 1962-4-24 6259 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD37856  Medicago polymorpha Beecher Crampton 1962-4-24 6260 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD110817  Melica Christopher Mallek 2008-1 DF1- 13 Yuba Daken Flat. 675 Comment
  CAS-BOT-BC269365  Melica californica Beecher Crampton 1967-5-17 7940 Yuba 5 miles east Brown's Valley, UC - Sierra Foothill Range Field Station Comment
  JEPS118737  Melica californica L. P. Janeway and Melanie Williams, Tim Hanson 2011-6-9 10376 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. French Corral 7.5' quad. Comment
  UCD80571  Melica californica CNPS SN Foothill Team 2005-3-17 SNFN 0060 Yuba CDFG Spenceville Wildlife Area, one mile south of Smartville and Pitman Road junction, northeast of the Pittman Pond. 180 Comment
  UCD86452  Melica californica Beecher Crampton 1957-6-5 4149 Yuba 1/2 mile W of Oregon House Post Office. Comment
  UCD86927  Melica californica Beecher Crampton 1962-4-24 6274 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCD33242  Melica californica var. nevadensis Beecher Crampton 1967-5-17 7940 Yuba Yuba County, 5 miles east of Brown's Valley, sierra foothill range field station. Comment
  CDA32495  Melica harfordii G. D. Barbe, J. T. Howell & T. C. Fuller 1981-6-22 3041 Yuba 0.1 mile north of Marysville Road on Oregon Hill Road, west of Bullards Bar Reservoir. Comment
  CHSC68463  Melica torreyana Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7730 Yuba Along the south side of Dry Creek, north of the poor dirt road, about 1 mile east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 121 Comment
  JEPS94322  Melica torreyana Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7730 Yuba about 17 mi ne of Marysville (along the s side of Dry Creek, n of the poor dirt road, about 1 mi e of Scott Forbes Road (Long Bar Road)); Dry Creek 121 Comment
  RSA726437  Melilotus albus L. Ahart 2007-11-1 14541 Yuba About 1 mile northwest of Old Camptonville Road, about 1.5 miles (air) west of Camptonville. 627 Comment
  CHSC83028  Mentha canadensis Lowell Ahart 2002-10-9 9968 Yuba On the north bank of Lost Creek, below the high water line of Sly Creek Reservoir, about 100 yards southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CHSC97235  Mentha pulegium Lowell Ahart 2007-6-22 14209 Yuba Along a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  CHSC84228  Mentha spicata Lowell Ahart 2003-7-17 10417 Yuba On the bottom of a stream, on the west side of Smartville road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 129 Comment
  JEPS104591  Mentha spicata Lowell Ahart 2003-7-17 10417 Yuba On the bottom of a stream, on the w side of Smartville road, ca 2 mi n of the intersection of Waldo Rd and Smartville Rd, ca 6 mi (air) south of Smartville. 129 Comment
  SEINET3441879  Mentha spicata Unknown 2003-7-17 10417 Yuba Smartville, Smartville, about 6 air miles south, west side of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road 120 Comment
  UCD37850  Micropus Beecher Crampton 1962-4-24 6254 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CHSC108201  Micropus californicus var. californicus Lowell Ahart 2011-6-7 17382 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS94318  Micropus californicus var. californicus Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7723 Yuba about 17 mi ne of Marysville (on bank of the Browns Valley Water Ditch, s of the poor dirt road, s of Dry Creek, about 1 mi e of Scott Forbes Road (Long Bar Road)); Browns Valley Water Ditch 182 Comment
  UCR257159  Micropus californicus var. californicus George K. Helmkamp 2014-4-17 22769 Yuba Sierra Nevada Foothills, Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville 264 Comment
  UCD134518  Micropus californicus var. californicus Barbara Yungert 1974-4-25 81 Yuba lower SC-14 project area, Sierra Foothill Field Station. Comment
  SEINET7042615  Microseris acuminata A. G. Vestal 1963-5-7 s.n. Yuba Ca 3.5 miles north of Wheatland. Wheatland quadrangle UTM Zone 10, 636544mE, 4323933mN. Comment
  SEINET7073617  Mimulus angustatus A. G. Vestal 1955-5-21 s.n. Yuba New York Flat. About 2.6 miles south of Forbestown on New York Flat Road. UTM Zone 10, 649035mE, 4272168mN. Coordinate datum: NAD27. Comment
  CAS-BOT-BC150495  Mimulus aurantiacus var. grandiflorus Mrs. J. E. Cramsie 1923-5-22 s.n. Yuba Smartsville Comment
  JEPS123934  Mimulus aurantiacus var. grandiflorus Lowell Ahart 2015-4-30 20130 Yuba About 1 1/4 mile (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. Comment
  OBI48845  Mimulus aurantiacus var. grandiflorus Lewis S. Rose 1939-6-7 39242 Yuba N Fork of Feather River, 3 mi S of Pulga 610 Comment
  RSA0114654  Mimulus aurantiacus var. grandiflorus Lowell A. Ahart 2015-4-30 20130 Yuba On the east side of the quarry, about 1.25 mile (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. 710 Comment
  RSA715485  Mimulus floribundus L. Ahart 2005-3-11 11608 Yuba About 0.5 mile W of Marysville Rd. About 0.5 mile N of Parking Area 3. Daugherty Hill Wildlife Area. Donovan Hill Managment Area. About 0.5 mile N of Loma Rica Rd. About 5 miles (air) NE of Loma Rica. 395 Comment
  JEPS86881  Mimulus guttatus David M. Thompson 1988-3-21 848 Yuba between 0.8 and 0.9 mi w of Hwy 49 bridge Yuba River (along Moonshine Road, which starts on the n side of the bridge) 440 Comment
  SEINET7072995  Mimulus guttatus A. G. Vestal 1963-5-30 s.n. Yuba Meadow about 3.9 miles south of Brownsville and 0.3 mile north of Willow Glen Ranch on Willow Glen Road. UTM Zone 10, 647202mE, 4364746mN. Coordinate datum: NAD27). Comment
  UCD122717  Mimulus guttatus Barbara Yungert 1974-4-14 34 Yuba along road 5, outside Meathook area, Sierra Foothill Field Station. Comment
  UC1239059  Mimulus kelloggii Freed W. Hoffman 1949-5-14 3165 Yuba near bridge Yuba River (Highway 49) Comment
  JEPS113623  Mimulus tricolor Lowell Ahart 2007-5-12 13815 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CDA24062  Minuartia douglasii D. L. Wilson 1976-5-14 Yuba 4899 Fruitland Road, Loma Rica. 0 Comment
  CHSC113180  Mollugo verticillata Lowell Ahart 2013-11-30 19298 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  CHSC81801  Mollugo verticillata Lowell Ahart 2001-11-2 9402 Yuba Camp Far West Reservoir, about 1/4 mile mortheast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  JEPS102556  Mollugo verticillata Lowell Ahart 2001-11-2 9402 Yuba Camp Far West Reservoir, about 1/4 mile mortheast of the dam, about 9 miles (air) SE of Wheatland. 83 Comment
  CAS-BOT-BC219941  Monardella breweri subsp. lanceolata Lowell Ahart 1983-8-10 4273 Yuba Along the Peterson Ridge Road, about 5 miles east of Challenge 1000 Comment
  NY429325  Monardella candicans var. venosa J. M. Bigelow 1854-5-25 s.n. Yuba Plain of Feather River near Marysville Comment
  UCD82843  Monardella glauca Robin McMaster 1973-6-24 483 Yuba Oregon Creek Campground. Comment
  CHSC112861  Monardella sheltonii L. P. Janeway 2014-4-26 11426 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  CHSC69140  Monardella sheltonii Lowell Ahart 1997-8-7 7812 Yuba On the north side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  RSA0037137  Monardella sheltonii L. P. Janeway 2014-6-26 11426 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  RSA0118764  Monardella sheltonii Lawrence P. Janeway 2014-7-2 11438 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.6 air-km east of Challenge, along Road 19N03 1.3 road mi north of its crossing of Indian Creek, on slopes just east of the creek. 834 Comment
  UCD125241  Monardella sheltonii W. R. Powell 1968-5-15 1494 Yuba 2 miles NE of Dobbins on Fountain House Road. 792 Comment
  JEPS95003  Monardella villosa subsp. villosa Lowell Ahart 1997-8-7 7812 Yuba about 3 air miles southeast of Challenge (on the north side of the dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  CAS-BOT-BC444882  Montia fontana Alice Eastwood 1921-5-22 10515 Yuba Los Vergils Comment
  CHSC90460  Montia fontana subsp. amporitana Lowell Ahart 2005-3-11 11603 Yuba In the middle of the poor dirt road, west of a large rock outcrop, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 386 Comment
  JEPS107349  Montia fontana subsp. amporitana Lowell Ahart 2005-3-11 11603 Yuba In the middle of the poor dirt road, west of a large rock outcrop, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 386 Comment
  CHSC47623  Muhlenbergia filiformis Lowell Ahart 1980-8-12 2567 Yuba Gravel bar, Slate Creek, a little below where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  JEPS103480  Muhlenbergia filiformis Lowell Ahart 2002-10-9 9972 Yuba On the S bank of Lost Creek, below the high water line of Sly Creek Reservoir, ca 200 yards SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CAS-BOT-BC274930  Muhlenbergia rigens Lowell Ahart 1977-2-16 s.n. Yuba About 4 miles NE of Marysville Comment
  UCD86997  Muhlenbergia rigens Beecher Crampton 1957-6-5 4144 Yuba 1 mile east of Stanfield Hill. Comment
  UCD86998  Muhlenbergia rigens Beecher Crampton 1963-9-9 6880 Yuba 2.5 miles n.n.w. of Smartsville, 5 miles east Brown's Valley. U.C. Sierra Foothill Station. Comment
  CDA19112  Myriophyllum spicatum Onstott, Storm 2001-3-19 PDR P 116776 Yuba on Durby Lane, Browns Valley. 0 Comment
  CAS-BOT-BC456175  Najas guadalupensis J. T. Howell; Gordon H. True 1969-6-24 5103 Yuba Ca. 1 mile NW of Spenceville (site) on Cox Creek 152 Comment
  CAS-BOT-BC456176  Najas guadalupensis Gordon H. True, Jr.; John Thomas Howell 1970-5-29 5420 Yuba Ca. 1 mi. NW. of Spenceville (site) on Cox Creek. 152 Comment
  UCD116103  Nasturtium officinale Barbara Yungert 1974-5-9 140 Yuba F1-42 project area, Sierra Foothill Field Station. Comment
  SEINET7072977  Navarretia A. G. Vestal 1963-5-29 s.n. Yuba At 99 East and Beale Road [Presently 99 & Camp Beale Road]. UTM Zone 10, 622422mE, 4331929mN. Coordinate datum: NAD27). Comment
  UCR168803  Navarretia David Charlton 2005-5-16 8027 A Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  UC702891  Navarretia eriocephala Lewis S. Rose 1939-6-5 39203 Yuba Smartsville 182 Comment
  UCD48394  Navarretia eriocephala Barbara Yungert 1974-5-31 189 Yuba H-9 project area, Sierra Foothill Field Station, Yuba County, California. Comment
  CHSC107430  Navarretia filicaulis L. P. Janeway 2011-8-10 10641 Yuba Northern High Sierra Nevada. Plumas National Forest; serpentine slope on southeast side of Road 19N04 1.3 km north of Challenge-La Porte road; 2.2 air km northeast of Challenge. 1023 Comment
  JEPS94628  Navarretia filicaulis Lowell Ahart 1997-8-7 7807 Yuba n side of New York Flat Rd. about 1 mi nw La Porte Road (about 1 mi n of Brownsville) 731 Comment
  UC718468  Navarretia filicaulis Carl B. Wolf 1937-6-11 Yuba 1.6 mi nw Stanfield Hill (along a fork of South Honcut Creek, Sierra Nevada foothills); Sierra Nevada 304 Comment
  CHSC97669  Navarretia heterandra Lowell Ahart 2007-5-12 13804 Yuba About 30 feet north of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS13880  Navarretia intertexta Rimo Bacigalupi with L. R. Heckard, R. D. Sanderson, and G. Bacigalupi 1952-6-20 3757 Yuba 1.5 mi due s;along road from Brownsville to Oregon House, just n of Washington Mill Brownsville 609 Comment
  UC856821  Navarretia intertexta Lewis S. Rose 1940-5-28 40377 Yuba Browns Valley 60 Comment
  UCR169019  Navarretia intertexta David Charlton 2005-5-16 8011 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  OBI11322  Navarretia intertexta Lewis S. Rose 1967-6-13 67127 Yuba Camp Far West Reservoir, 7 mi NE of Wheatland. 122 Comment
  RSA189453  Navarretia intertexta L. S. Rose 1967-6-13 67127 Yuba Camp Far West Reservoir, 7 mi. NE of Wheatland 122 Comment
  SEINET201432  Navarretia intertexta Rimo Bacigalupi, L. R. Heckard; R. D. Sanderson; G. 1952-6-20 3757 Yuba Along road from Brownsville to Oregon House, just north of Washington Mill and 1.5 miles due south of Brownsville. 610 Comment
  UCD48460  Navarretia intertexta Barbara Yungert 1974-5-16 158 Yuba Above Dry Creek, L 1-11 project area, Sierra Foothill Field Station, Yuba County, California. Comment
  UCD48461  Navarretia intertexta Barbara Yungert 1974-5-23 177 Yuba Along fence of F 1-11 project area, near Road 3, Sierra Foothill Field Station, Yuba County, California. Comment
  UCD48462  Navarretia intertexta Barbara Yungert 1974-5-14 150 Yuba SC-14 project area, Sierra Foothill Field Station, Yuba County, California. Comment
  UCD48463  Navarretia intertexta Beecher Crampton 1971-6-18 8735 Yuba Sierra Foothill Range Field Station. Ca. 6.5 miles E of Browns Valley. Comment
  UCD147084  Navarretia intertexta subsp. intertexta Chuck Hughes 2013-5-2 369 Yuba Northwest margin of Camp Far West Reservoir. 97 Comment
  UC1283734  Navarretia leucocephala Beecher Crampton 1965-5-11 7325 Yuba 2.5 mi sw Browns Valley Comment
  UCD35858  Navarretia leucocephala Beecher Crampton 1965-5-11 7325 Yuba 2.5 miles southwest of Brown's Valley. Comment
  UCD48528  Navarretia leucocephala Beecher Crampton 1965-5-11 7325 Yuba 2.5 miles s.w. Brown's Valley. Comment
  SEINET7042611  Navarretia leucocephala A. G. Vestal 1963-5-29 s.n. Yuba Olivehurst-Smartville Road [presently Hammonton- Smartville Road]. 0.4 mile west of road south to Beale Air Force Base [Smartville Road]. Smartville quadrangle UTM Zone 10, 646242mE, 4339869mN. Comment
  CHSC97639  Navarretia leucocephala subsp. leucocephala Lowell Ahart 2007-5-12 13806 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113399  Navarretia pubescens Lowell Ahart 2007-5-12 13807 Yuba Dry bare disturbed dark soil, about 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  OBI48930  Navarretia pubescens Lewis S. Rose 1939-6-5 39202 Yuba Smartsville 183 Comment
  UCR118894  Navarretia pubescens Beecher Crampton 1957-6-5 4131 Yuba Central Sierra Nevada foothills., 2.6 Miles northeast of Brown's Valley Post Office 366 Comment
  CAS-BOT-BC229014  Navarretia pubescens Beecher Crampton 1957-6-5 4131 Yuba 2.6 miles northeast of Brown's Valley P.O. Comment
  RSA122941  Navarretia pubescens H. S. Yates 1933-5-24 3641 Yuba Near Toland Ranch 122 Comment
  UCD118209  Navarretia squarrosa G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12832 Yuba Northern Sierra Nevada Mountains: along Hwy CA-49, 0.5 mile south of Camptonville. 817 Comment
  RSA726412  Navarretia tagetina L. Ahart 2007-5-12 13808 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  RSA750179  Navarretia tagetina J. R. Shevock, Bob Holland 1985-5-6 11126 Yuba Beale Air Force Base E of Marysville. Pools adjacent to runway. 40 Comment
  SEINET5906106 Image available Navarretia tagetina L. S. Rose 1967-1 67124 Yuba 7 mi NE of Wheatland. Comment
  UC410446  Nemophila heterophylla Alice Eastwood 1930-4-12 17938 Yuba Texas Hill Road Comment
  UC606918  Nemophila heterophylla L. Constance 1938-6-8 2292 Yuba 4 mi nw North San Juan (Middle Fork Yuba River); Sierra Nevada foothills, Middle Fork Yuba River 426 Comment
  UC718060  Nemophila heterophylla Carl B. Wolf 1937-5-13 8638 Yuba on road to Browns Valley 2 7/10 mi below Stanfield Hill; Sierra Nevada foothills, below Stanfield Hill 182 Comment
  UCD120072  Nemophila heterophylla Barbara Yungert 1974-4-16 53 Yuba Koch Livestock Area, Sierra Foothill Field Station. Comment
  CHSC111038  Notholithocarpus densiflorus L. P. Janeway; Tim Hanson 2013-10-24 11211 Yuba Northern High Sierra Nevada. Plumas national Forest; Challenge Experimental Forest; broad ridgeline between Challenge and Golden Gate Ravine, 1700 m north-northwest of Challenge. 817 Comment
  CDA3518  Nymphaea odorata G. D. Barbe 1977-4-18 2253 b Yuba 13th and D Streets, Marysville . 0 Comment
  CDA3522  Nymphaea odorata G. D. Barbe 1977-4-18 2253 b Yuba 13th and D Streets, Marysville . 0 Comment
  CHSC96416  Odontostomum hartwegii L. P. Janeway 2006-5-24 8633 Yuba Northern Sierra Nevada Foothills. South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. 483 Comment
  JEPS122444  Odontostomum hartwegii L. P. Janeway 2014-5-12 11247 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Quad: French Corral 7.5'. Comment
  SEINET3557365 Image available Odontostomum hartwegii Lewis S. Rose 1939-6-6 39224 Yuba 2 miles southwest of Brownsville. 594 Comment
  SEINET3992117  Odontostomum hartwegii Unknown 1939-6-6 39224 Yuba 2 mi S. W. of Brownsville 594 Comment
  SEINET7042409  Odontostomum hartwegii A. G. Vestal 1963-5-30 s.n. Yuba Road west to Forbestown. Ca 1.5 miles east of Forbestown and 2.6 miles west of Brownsville. Rackerby quadrangle UTM Zone 10, 648106mE, 4372559mN. Comment
  JEPS95891  Oenothera elata subsp. hirsutissima Lowell Ahart 1999-9-5 8194 Yuba on the disturbed area on the south side of Woodruff Lane; just west of Kimball Lane; about 5 miles (air) northeast of Marysville 24 Comment
  HSC96893  Orobanche uniflora L. Ahart 2004-4-27 10765 Yuba About 20 yrds. W of a drainage, about 40 yrds. S of the road, about 1/2 mi. (air) SE of Woodleaf 932 Comment
  SJSU8387  Orobanche uniflora J. B. Willis Jr. 1969-4-27 Yuba by old stage rd to Timbuctoo, NW of Smartville, 0.25 mi from State Hwy 20 Comment
  JEPS106275  Orobanche uniflora var. uniflora Lowell Ahart 2004-4-27 10765 Yuba About 20 yards west of a drainage, about 40 yards south of the road, about 1/2 mile (air) southeast of Woodleaf 931 Comment
  CHSC78156  Oxalis laxa Lowell Ahart 2000-5-25 8401 Yuba Bank of a large wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  JEPS88898  Packera eurycephala var. eurycephala Lowell Ahart 1994-6-5 7295 Yuba n side of Forbestown Rd about 3 air mi e Forbestown (n side of Costa Creek); Costa Creek 853 Comment
  UC1728262  Packera layneae Al Franklin 1997-7-1 97138 Yuba on Ponderosa Way just n La Porte Rd.; Brownsville, Recreation Park Comment
  CHSC44564  Panicum acuminatum Lowell Ahart 1979-6-25 1949 Yuba North of the road, about 2 miles east of Challenge. 640 Comment
  SBBG26331  Panicum acuminatum B. Crampton 1966-6-14 Yuba 1 mi E of Brownsville 731 Comment
  UCD33106  Panicum acuminatum var. fasciculatum Beecher Crampton 1966-6-14 7745 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  UCD88530  Panicum acuminatum var. fasciculatum Beecher Crampton 1965-6-17 7367 Yuba ca. 0.75 mile north of Stanfield Hill, Willow Glen Creek. 396 Comment
  UCD88531  Panicum acuminatum var. fasciculatum Beecher Crampton 1966-6-14 7745 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  CHSC97485  Panicum capillare Lowell Ahart 2007-5-14 13886 Yuba 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS113473  Panicum capillare Lowell Ahart 2007-5-14 13886 Yuba 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  UCD89503  Panicum capillare Beecher Crampton 1964-10-22 7226 Yuba 3 miles east of Brown's Valley. Comment
  CAS-BOT-BC253827  Panicum dichotomiflorum Lowell Ahart 1977-8-31 1546 Yuba Sam Shintaffer Farm, 2 miles NE of Marysville 30 Comment
  CHSC96865  Panicum dichotomiflorum Lowell Ahart 2007-6-22 14219 Yuba Bottom of a new ditch, near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  SEINET10920908  Panicum dichotomiflorum Lowell Ahart 1999-9-5 Ahart 8198 Yuba T16N, R4E, Section not surveyed. On the disturbed area on the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 37 Comment
  CHSC76115  Panicum dichotomiflorum subsp. dichotomiflorum Lowell Ahart 1999-9-5 8198 Yuba On the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 Comment
  CHSC78172  Parentucellia viscosa Lowell Ahart 2000-5-25 6396 Yuba On the seepy edges of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  CLARK-A1528-7707  Paspalum dilatatum John C. Roos 1939-7-3 1519 Yuba Comment
  UCR179305  Paspalum dilatatum George K. Helmkamp, E. A. Helmkamp 2006-10-10 11525 Yuba Northern Sierra Nevada Mountains Foothills, along Calif. Hwy 49 just north of the Nevada County line at the Middle Yuba River bridge 451 Comment
  UCD88732  Paspalum dilatatum Beecher Crampton 1964-10-22 7227 Yuba 3 miles east of Brown's Valley Dry Creek. Comment
  CHSC10747  Paspalum distichum Lowell Ahart 1966-9-4 Yuba Sam Shintaffer Ranch. 39 Comment
  UC1108681  Paspalum distichum H. R. Bennett 1954-8-6 Yuba 4 mi ne Marysville 22 Comment
  CHSC116215  Paspalum urvillei Lowell Ahart 2015-6-16 20246 Yuba Near the water ditch, about 100 yards south of the poor dirt road, about 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. 829 Comment
  JEPS124413  Paspalum urvillei Lowell Ahart 2015-6-16 20246 Yuba About 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. Comment
  CAS-BOT-BC202813  Paxistima myrsinites L. P. Janeway; Jean Witzman; Robin Fallsheer 1992-4-15 4152 Yuba Southwest side of Slapjack Creek, 1 mi southeast of Woodleaf 899 Comment
  CHSC69137  Paxistima myrsinites Lowell Ahart 1997-8-7 7832 Yuba On the west side of the dirt road, on the south side of Indian Creek, about 3 miles (air) east of Challenge. 762 Comment
  JEPS94627  Paxistima myrsinites Lowell Ahart 1997-8-7 7832 Yuba about 3 air mi e Challenge (on w side of dirt rd., on s side of creek); Indian Creek 762 Comment
  UCD150648  Paxistima myrsinites Collector unknown 1974-5-15 200 Yuba 5.5 mi N of Camptonville on Highway 49. 914 Comment
  CHSC116525  Pedicularis densiflora Lowell Ahart 2015-4-30 20127 A Yuba On the south side of the gravel road, about 10 yards east of the gate, about 3/4 mile (air) southeast of Woodleaf. 948 Comment
  CHSC43517  Pedicularis densiflora Lowell Ahart 1972-4-28 92 Yuba About 3 miles north-east of Strawberry Valley, along the road to Slate Creek. 914 Comment
  JEPS18882  Pedicularis densiflora Rimo Bacigalupi with G. T. Robbins and Fran Chisaki 1956-4-19 5622 Yuba 3.1 mi e of Dobbins (between Dobbns and Bullard Bar Dam, watershed of North Fork of Yuba River, 5.5 mi sw of Bullard Bar Dam); Yuba River 783 Comment
  CHSC117720  Pedicularis racemosa Lowell Ahart; Doug Upton 2016-9-2 21335 Yuba About 100 yards south of Gold Run Creek, east of the poor logging road, about 1/2 mile southwest of the Poverty Hill Mine. About 5 1/2 miles (air) south of La Porte. 1301 Comment
  JEPS127128  Pedicularis racemosa Lowell Ahart 2016-9-9 21343 Yuba After crossing Slate Creek on Old County Road to Scales, take first road to the right and go about 1/2 mile near Stowman Ravine, about 3 miles (air) southwest of Poverty Hill mine, about 8 miles (air) southwest of La Porte. Comment
  CHSC68464  Pellaea mucronata var. californica Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7731 Yuba Along the south side of Dry Creek, north of the poor dirt road, about 1 mile east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 121 Comment
  CHSC68465  Pellaea mucronata var. mucronata Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7733 Yuba Along the south side of Dry Creek, north of the poor dirt road, about 1 mile east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 121 Comment
  JEPS35169  Pellaea mucronata var. mucronata Mrs. S. M. Rust Yuba Comment
  SEINET211417 Image available Penstemon azureus James L. Reveal 1971-6-23 2477 Yuba Along California Highway 49, 0.5 mile north of the south Yuba River along a roadcut, about 7 miles north of Yuba City 366 Comment
  UC887064  Penstemon heterophyllus Lewis S. Rose 1940-5-28 40394 Yuba Oregon House 457 Comment
  UCD124233  Penstemon heterophyllus Barbara Yungert 1974-5-21 167 Yuba south of rock pile, north side of Yuba River, F-3 project area, Sierra Foothill Field Station. Comment
  CHSC115299  Penstemon laetus Lowell Ahart 2015-4-30 20136 Yuba On dry soil, road cut, on the east side of La Porte Road, about 2 1/4 miles (air) southwest of Brownsville, about 2 miles (air) northeast of Rackerby. Foothill Woodland. 504 Comment
  RSA789816  Penstemon laetus Rebecca Wenk 2005-10-8 396 Yuba Top of Yuba Pass, along hwy 49. Comment
  SEINET11262158  Penstemon laetus var. leptosepalus Karl A. Vincent 1987-6-24 4431 Yuba Sierra Nevada, New York Flat. Along N side of LaPorte Rd (CA E21) at jct New York House (Rd) ca 1.8 mi W of Challange.; 0 732 Comment
  UC1238916  Penstemon laetus var. leptosepalus Freed W. Hoffman 1946-6-12 917 Yuba on the Camptonville-Dobbins road on roadside a few mi w Camptonville; Sierra Nevada, w of Camptonville Comment
  POM190467  Penstemon laetus var. leptosepalus D. D. Keck 1932-7-1 1608 Yuba 1 mile SE of log Cabin Service Station, W of Camptonville. 610 Comment
  POM195082  Penstemon laetus var. leptosepalus D. D. Keck 1930-7-25 983 Yuba Bullards Bar Reservoir. 457 Comment
  RSA668196  Penstemon laetus var. leptosepalus Karl Vincent, Charlotte A. Labbe 1987-8-10 4504 Yuba Sierra Nevada, New York Flat. Along N side of LaPorte Rd (CA E21) at jct. New York House (Rd.) ca 1.8 mi W of Challenge. 732 Comment
  UC1874802  Penstemon laetus var. leptosepalus Karl Vincent, Charlotte Labbe 1987-8-10 4504 Yuba Sierra Nevada, New York Flat; On S-facing roadbank below mxed conifer-hardwood forest along N side of LaPorte Rd. (CA E21) at jct. New York House (Road) ca 1.8 mi W of Challenge. 731 Comment
  CHSC62139  Penstemon newberryi var. newberryi B. Castro 1987-5-8 71 Yuba Ca 0.2 mi SE of bridge over Slate Creek. On edge of Slate Creek Canyon. 1097 Comment
  CHSC115301  Pentagramma triangularis subsp. triangularis Lowell Ahart 2015-4-30 20131 Yuba Serpentine, on the weast side of the quarry, about 1 1/4 miles (air) south west of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. Yellow Pine Forest. 709 Comment
  JEPS107678  Pentagramma triangularis subsp. triangularis Lowell Ahart 2005-3-11 11601 Yuba On W side of large rock outcrop, just E of the poor dirt road, ca. 1/2 mi W of Marysville Rd, ca. 1/2 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/2 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 386 Comment
  CAS-BOT-BC211273  Perideridia bacigalupii Lowell Ahart 1980-8-12 2527 Yuba About 2 miles south-east of Woodleaf 800 Comment
  CHSC105607  Perideridia bacigalupii L. P. Janeway 2010-8-11 10138 Yuba Northern High Sierra Nevada. Plumas National Forest; near the head of Little Oregon Creek, along Peterson Ridge Road 1.4 road km southeast of Oregon Hill Road. Mostly along the north edge of the dirt road and just up the cutbank. 876 Comment
  CHSC108169  Perideridia bacigalupii L. P. Janeway 2011-8-15 10646 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 1.9 air km south-southwest of Oregon Peak, 0.3 km north of Marysville Road. Southwest edge of meadow area, where seasonal drainage occurs and in sheetlfow parts of the meadow. 750 Comment
  CHSC69128  Perideridia bacigalupii Lowell Ahart 1997-8-7 7810 Yuba On the north side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  CHSC105608  Perideridia kelloggii L. P. Janeway 2010-11-8 10139 Yuba Northern High Sierra Nevada. Plumas National Forest; under the power lines about 150 m northwest of Oregon Hill Road 2.2 road km north of Marysville Road; about half was between Oregon Peak and Summit Hill. Springtime seep. 832 Comment
  JEPS118647  Perideridia kelloggii L. P. Janeway 2010-8-11 10139 Yuba Northern High Sierra Nevada. Plumas National Forest; under the power lines about 150 m northwest of Oregon Hill Road 2.2 road km north of Marysville Road; about half way between Oregon Peak and Summit Hill. Comment
  UCD18440  Perideridia kelloggii Eric Knapp 2000-1 232 B Yuba Sierra Foothill Research and Extension Center, adjacent to moist seep, SW-facing slope in blue oak, interior live oak woodland. 373 Comment
  CHSC108146  Perideridia lemmonii L. P. Janeway 2011-8-15 10647 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 1.9 air km south-southwest of Oregon Peak, 0.3 km north of Marysville Road. Southwest edge of meadow area, where seasonal drainage occurs and in sheetlfow parts of the meadow. 750 Comment
  CHSC84980  Perideridia lemmonii Lowell Ahart 2003-10-11 10624 Yuba West side of meadow, on the east side of a gravel road to the Rose Ranch, about 100 yards west of the paved road to Scales, about 1/2 mile south of the Rose Ranch, about 5 miles (air) northeast of Strawberry Valley, about 7 miles (air) southwest of La Porte. 1219 Comment
  UC1389942  Perideridia lemmonii T. I. Chuang and R. Bacigalupi 1963-8-1 5909 Yuba Comment
  SD236379  Persicaria hydropiper G. K. Helmkamp, E. A. Helmkamp 2006-10-10 11528 Yuba Northern Sierra Nevada Mountains Foothills: along Hwy Ca-49 just north of Nevaday county line at the Middle Yuba River Bridge. 451 Comment
  CHSC47472  Persicaria lapathifolia Lowell Ahart 1977-8-31 1558 Yuba Growing in shallow water in a rice field, on the Sam Shintaffer Farm, about 2 miles north-east of Marysville. 27 Comment
  CHSC81810  Persicaria lapathifolia Lowell Ahart 2001-11-2 9394 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  CHSC116032  Persicaria maculosa Lowell Ahart 2015-11-19 20677 Yuba 100 yards or more north of the spillway area, below the high water line, west side of Lake Francis, about 1-1/2 miles south of Dobbins. 512 Comment
  JEPS124263  Persicaria maculosa Lowell Ahart 2015-11-19 20677 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CAS-BOT-BC419170  Persicaria maculosa W. V. Middlekauff 1954-9-11 s.n. Yuba 3 miles n.w. of Rio Oso Post Office Comment
  CHSC116117  Persicaria punctata Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20640 Yuba On the bottom of the outflow area at the bottom of Lake Francis Dam, Lake Francis, about 1-1/2 miles south of Dobbins. 479 Comment
  UCD99789  Persicaria punctata G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12826 Yuba Northern Sierra Nevada Mountains Foothills: Mountain House Road 0.6 mile west of the county line. Sleighville area beside Willow Creek. 1021 Comment
  CAS-BOT-BC419310  Persicaria punctata J. T. Howell; Gordon H. True 1969-6-24 5092 Yuba Vineyard Creek ca. 4 miles south of Smartville on Beale AFB Rd. 152 Comment
  UC1076251  Petrorhagia dubia Herbert L. Mason 1927-5-11 3735 Yuba flat w North San Juan; flat w of North San Juan Comment
  UC572502  Petrorhagia dubia H. S. Yates 1933-5-23 3616 Yuba two mi ne Spenceville; Smartsville Quad. 304 Comment
  UC592758  Petrorhagia dubia Carl B. Wolf 1937-5-13 8632 Yuba on road to Stanfield Hill 2 mi above Browns Valley; Sierra Nevada foothills, above Browns Valley 121 Comment
  UCD37844  Petrorhagia dubia Beecher Crampton 1962-4-24 6241 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD37858  Petrorhagia dubia Beecher Crampton 1962-4-24 6264 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCR231321  Petrorhagia dubia George K. Helmkamp, E. A. Helmkamp 2011-5-6 17207 Yuba East edge of Sacramento Valley, junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg. ) of Wheatland 56 Comment
  SEINET5337023  Petrorhagia dubia C. Aarstad 1979-4-28 s.n. Yuba At junction of Rt. 20 and north fork of Yuba in Browns Valley 183 Comment
  SEINET5337024  Petrorhagia dubia D. Selleck 1979-4-27 s.n. Yuba Sierra Field Station-UC Davis Comment
  UCD98394  Petrorhagia dubia Barbara Yungert 1974-4-12 24 Yuba Along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UCSB50207  Petrorhagia dubia Gray, John 1976-4-10 Yuba Along roadside on Loma Rica Road; 4 miles south of Loma Rica 42 Comment
  UC735048  Phacelia egena Lincoln Constance, Howard E. McMinn 1946-5-11 3039 Yuba 6 mi n Stanfield Hill 563 Comment
  CHSC116594  Phalaris aquatica L. P. Janeway 2015-6-30 11789 Yuba Northern High Sierra Nevada. Plumas National Forest; Weiss Hill Meadow, a large meadow 600 air-km east-southeast of junction of Weiss Hill Road and Forbestown Road; at the head of a minor northwestern tributary to New York Creek. 853 Comment
  UCD88039  Phalaris aquatica Beecher Crampton 1971-6-18 8730 Yuba 5 miles E of Marysville, along State Hwy. 20. Comment
  RSA726958  Phalaris minor L. Ahart 2007-5-14 13843 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  UCD89167  Phalaris minor Beecher Crampton 1957-6-5 4124 Yuba 10 miles E of Marysville. Along State Hwy. 20. Comment
  RSA0059870  Philadelphus lewisii R. C. Bacigalupi 1927-7-2 1594 Yuba Highway to Downieville about 8 mi NE of Camptonville. Comment
  JEPS71087  Phlox gracilis Willis L. Jepson 1892-4-9 15052 Yuba Smartsville Comment
  SBBG6056  Phlox speciosa H. and M. Dearing 1939-5-8 3296 Yuba near Camptonville Comment
  UCD118251  Phlox speciosa R. O. Hanes 1992-4-1 45 Yuba Plumas Forest. 731 Comment
  UCD118252  Phlox speciosa Kathleen Keliher 1975-5-30 118 Yuba Near New York Flat Road, just west of Forbestown. 822 Comment
  CHSC44340  Phlox speciosa subsp. occidentalis Lowell Ahart 1976-4-15 1071 Yuba Along Ponderosa Way and near the Brownsville dump, about 1 mile west of Brownsville. 457 Comment
  UCD112036  Phoradendron bolleanum Christopher Mallek 2008-5-5 IC3- 5 Yuba Indiana Creek. 617 Comment
  SEINET777080  Phoradendron juniperinum James E Canright 1957-8-23 714 -a Yuba Sierra Nevada Mountains near Bullards Bar Resevoir, ca. 25 mi ESE of Oroville 914 Comment
  UCD102239  Phoradendron leucarpum subsp. tomentosum Barbara Yungert 1974-5-23 182 Yuba Koch Landing, K 1-11 project area, Sierra Foothill Field Station. Comment
  CHSC69148  Physocarpus capitatus Lowell Ahart 1997-8-9 7839 Yuba Along a unnamed creek, about two miles (air) southeast of Woodleaf. 701 Comment
  JEPS94626  Phytolacca americana Lowell Ahart 1997-8-7 7820 Yuba Peterson Ridge Rd. about 3 air mi se Challenge (e side of small stream (branch of creek) on s side of dirt road); Little Oregon Creek 762 Comment
  CHSC45919  Pickeringia montana Lowell Ahart 1976-5-27 1131 Yuba Near the edge of Ponderosa Way, near the Brownsville Dump, west of Brownsville. 609 Comment
  CHSC32100  Pilularia americana L. Ahart 1977-9-25 1591 Yuba Sam Shintaffer Farm, 2 mi ne of Marysville. 35 Comment
  CHSC97670  Pilularia americana Lowell Ahart 2007-5-12 13765 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCD134969  Pinus ponderosa Barbara Yungert 1974-6-5 194 Yuba North of Yuba River, H 8-11 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC72816  Pinus sabiniana Saichi Kawahara 1968-4-13 296 Yuba Park's Bar, Highway 20 at north bank Yuba River. 91 Comment
  UCD135105  Pinus sabiniana Barbara Yungert 1974-6-5 192 Yuba Sierra Foothill Field Station. Comment
  UCD139003  Piperia elegans Kenneth Stewart 1964-6-26 s.n. Yuba 2 miles northeast of Challenge. Comment
  CHSC71406  Piperia transversa Lowell Ahart 1998-7-19 8051 Yuba On the north side of the dirt road, about 3/4 mile southeast of Woodleaf. 960 Comment
  UCR196983  Pisum sativum George K. Helmkamp, E. A. Helmkamp 2008-5-20 13468 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  UCR169028  Plagiobothrys David Charlton 2005-5-16 8012 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  UCD37847  Plagiobothrys Beecher Crampton 1962-4-24 6247 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CHSC97662  Plagiobothrys fulvus Lowell Ahart 2007-5-12 13777 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS94320  Plagiobothrys fulvus Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7728 Yuba about 17 mi ne of Marysville (n of the poor dirt road, s of Dry Creek, about 1 1/4 mi e of Scott Forbes Road (Long Bar Road)) 137 Comment
  UCR232228  Plagiobothrys fulvus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17212 Yuba Eastern edge of Sacramento Valley, Camp Far West Road, 1.3 miles southeast of its junction with Spenceville Road, 5.25 mi. NE (52 deg. ) of Wheatland 62 Comment
  SBBG121298  Plagiobothrys glyptocarpus L. Ahart 2007-4-17 13682 Yuba ca. 1/8 mi W of Marysville Rd and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 5.5 air mi NE of Loma Rica 292 Comment
  CHSC96493  Plagiobothrys glyptocarpus var. glyptocarpus Lowell Ahart 2007-4-17 13682 Yuba Along a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  JEPS113479  Plagiobothrys glyptocarpus var. glyptocarpus Lowell Ahart 2007-5-12 13780 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  RSA726546  Plagiobothrys greenei L. Ahart 2007-5-12 13778 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  SEINET7075552  Plagiobothrys greenei A. G. Vestal 1955-4-4 s.n. Yuba About 9 miles northeast of Marysville on Route 20. 39? deg. 13' 38" North Latitude, -121? deg. 24' 51" West Longitude. UTM Zone 10, 636890mE, 4342994mN. (NAD 27)]. [Coordinate Datum: WGS84/NAD83]. Comment
  UCR234209  Plagiobothrys greenei George K. Helmkamp, E. A. Helmkamp 2011-4-10 17167 Yuba Sacramento Valley, along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland 44 Comment
  CAS-BOT-BC523899  Plagiobothrys stipitatus var. micranthus George K. Helmkamp; Amy Barnes 2013-3-28 20250 Yuba Eastern Sacramento Valley: northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  CDA40653  Plagiobothrys stipitatus var. micranthus L. Ahart 2002-6-3 9688 Yuba On the bottom of the pond spillway, second small man made pond, about 1/4 mile south of Long Ravine Road, about 1/8 mile east of the intersection of Camp Far West Road and Long Ravine Road there is a poor Texas gate on the south side of the road, north of Camp Far West Reservoir. Comment
  CHSC97630  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2007-5-12 13779 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  HSC100755  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2011-6-7 17387 Yuba 150 yd. W of S end of Parks Bar Bridge (Hwy. 20), 15 (air) mi. NE of Marysville. 66 Comment
  JEPS123937  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2015-4-30 20132 Yuba About 1 1/4 mile (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. Comment
  JEPS113412  Plantago coronopus Lowell Ahart 2007-5-12 13801 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  JEPS113629  Plantago elongata Lowell Ahart 2007-5-12 13802 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UCSC008273  Plantago elongata Lowell Ahart 2007-5-12 13802 Yuba About 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC45085  Plantago erecta Barbara Yungert 1973-5-3 109 Yuba West of road near cattle guard and U. C. sign, west of station, Sierra Foothill Field Station. Comment
  JEPS113409  Plantago erecta Lowell Ahart 2007-5-12 13803 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  RSA716507  Plantago erecta L. Ahart 2005-3-11 11606 Yuba 1/2 miles W of Marysville road, 1/2 mile N of Parking area 3, Dauherty Hill Wildlife area, Donovan Hill Management Area, 1/2 mile N of Loma Rica Road, 5 miles air NE of Loma Rica. 395 Comment
  RSA726804  Plantago lanceolata L. Ahart 2007-6-30 14231 Yuba Near a new ditch, near and east of a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  UCD124618  Plantago lanceolata Barbara Yungert 1974-5-6 119 Yuba In backyard of house, south of headquarters, Sierra Foothill Field Station. Comment
  CHSC106054  Platanthera leucostachys Lowell Ahart 2010-7-27 16918 Yuba Along small streams in the meadow, on the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. 1219 Comment
  JEPS95419  Platanthera leucostachys Lowell Ahart 1994-6-27 7390 Yuba 4 mi NE of Strawberry Valley (near the SE side of Schwartz Meadow, on the E side of La Porte Road) 1219 Comment
  UCD82075  Platystemon californicus Robin McMaster 1973-4-7 221 Yuba Browns Valley, Peoria Cemetery. Comment
  CHSC97484  Poa annua Lowell Ahart 2007-5-12 13826 Yuba Along the dirt road and about 20 yards northwest of the gate, about 20 yards south of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  UCD90347  Poa annua Beecher Crampton 1962-4-24 6286 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCD90855  Poa compressa Beecher Crampton 1971-6-18 8732 Yuba Sierra Foothill Range Field Station. Ca. 6 miles east of Browns Valley. Comment
  CHSC97762  Poa palustris Lowell Ahart 2007-11-1 14538 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  JEPS115067  Poa palustris Lowell Ahart 2007-11-1 14538 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  CAS-BOT-BC255962  Poa pratensis Lowell Ahart 1979-6-25 s.n. Yuba 1 mi. S of Challenge 700 Comment
  CHSC8576  Poa pratensis Dave Isle 1969-4-29 428 Yuba On a lawn two doors N. of the Chevron station (W. side of street) at the E.-7th St. intersection in Marysville. 57 Comment
  UCD91883  Poa pratensis Beecher Crampton 1962-4-24 6288 b Yuba 5 miles east of Browns Valley, Sierra Foothill Range Field Station. Comment
  CDA18857  Poa pratensis subsp. pratensis J. Horenstein 1999-6-9 s.n. Yuba Wetland, just north of bridge over Cock's Creek, Spenceville Wildlife Area. 0 Comment
  UCD90812  Poa secunda subsp. secunda Beecher Crampton 1962-4-24 6299 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  JEPS126008  Poa trivialis D. W. Taylor 2001-6-19 17795 Yuba Ca 3 air miles SW of Union Hill; creek along Forest Road 20N35 tributary to Brushy Creek near Daimond Ravine. Comment
  UCD92100  Poa trivialis Beecher Crampton 1966-6-14 7756 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  UCR168804  Pogogyne ziziphoroides David Charlton 2005-5-16 8027 B Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  SEINET7072719  Pogogyne zizyphoroides A. G. Vestal 1963-5-7 s.n. Yuba About 3.5 miles north of Wheatland on Jasper Lane. UTM Zone 10, 636590E, 4323573mN. Coordinate datum: NAD 27. Comment
  CHSC32102  Polygala cornuta L. Ahart 1979-6-25 1950 Yuba Below the rd, ca. 2 mi e of Challenge. 700 Comment
  UCD112040  Polygala cornuta Christopher Mallek 2008-5-5 IC3- 1 Yuba Indiana Creek. 617 Comment
  CDA43443  Polygala cornuta Jan Kendal 2015-5-27 PDR# 510 P06303312 Yuba Loma Rica. 0 Comment
  SEINET9323173  Polygala cornuta Unknown 1981-6-22 3044 Yuba Oregon Hill Road Comment
  CAS-BOT-BC170373  Polygala cornuta var. cornuta Clarence R. Quick 1966-6-28 66 -32 Yuba Challenge Ranger Station, Challenge Comment
  CHSC112960  Polygala cornuta var. cornuta L. P. Janeway 2014-7-2 11435 Yuba Northern High Sierra Nevada. Plumas National Forest; Peterson Ridge Road rounding the southeast-trending ridge between Indian Creek and the un-named creek south of that; 2.4 air-km east of Pike County Peak. 820 Comment
  CAS-BOT-BC110539  Polygonum Lowell Ahart 1977-8-31 s.n. Yuba Found 2 miles northeast of Marysville. On the Sam Shintaffer Farm. 35 Comment
  CHSC97454  Polygonum aviculare Lowell Ahart 2007-5-14 13879 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  CHSC97464  Polygonum aviculare Lowell Ahart 2007-5-12 13809 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  UCR191119  Polygonum aviculare George K. Helmkamp, E. A. Helmkamp 2007-8-29 12825 Yuba Northern Sierra Nevada Mountains Foothills, Mountain House Road 0.6 mile west of the Sierra Co. line; Sleighville area beside Willow Creek 1021 Comment
  CHSC66902  Polygonum californicum Lowell Ahart 1996-11-11 7708 Yuba In an open pasture field, about 1/2 mile north of the intersection of Iowa City Road and Fruitland Road, about 5 miles west of Loma Rica. 60 Comment
  CAS-BOT-BC414362  Polygonum californicum J. T. Howell; Gordon H. True 1971-5-26 s.n. Yuba 8 mi. e. of Marysville 30 Comment
  RSA97517  Polygonum californicum Beecher Crampton 1952-10-31 901 Yuba Yolo County: Dry adobe, alkaline soil, where water has stood, Yolo Causeway, 5 miles E of Davis Comment
  RSA726959  Polygonum convolvulus L. Ahart 2007-5-14 13842 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  CHSC45951  Polygonum douglasii subsp. douglasii Lowell Ahart 1980-8-12 2540 Yuba Growing on a large gravel bar that is formed from a debris dam across Slate Creek, a little below where Gold Run Creek flows into Slate Creek, above Oniion Creek, about 7 miles south of La Porte. 1158 Comment
  CDA6938  Polygonum hydropiper G. K. Helmkamp, E. A. Helmkamp 2006-10-1 11528 Yuba Northern Sierra Nevada Mountain Foothills; Along Highway CA-49 just north of the Nevada County line at the Middle Yuba River bridge. Comment
  CHSC45470  Polygonum parryi Lowell Ahart 1980-8-12 2541 Yuba Growing on a large gravel bar that is formed from a debris dam across Slate Creek, a little below where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  CHSC73978  Polygonum parryi B. Castro; Gail Kuenster 1994-9-30 553 Yuba Ca. 4.5 air mi due E of Strawberry Valley, in old Road's End 2 gold mine site at end of USFS Rd 20N12. 1170 Comment
  UCR189620  Polygonum persicaria George K. Helmkamp, E. A. Helmkamp 2007-8-29 12835 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 Comment
  SEINET13710397  Polygonum persicaria Lowell William Ahart, Lowell William Ahart 1999-1 8242 Yuba 5 Air Mi NE of Marysville Comment
  CHSC97629  Polygonum polygaloides subsp. confertiflorum Lowell Ahart 2007-5-14 13853 Yuba Bottom of swales, about 100 yards east of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville. 29 Comment
  UCR191120  Polygonum punctatum George K. Helmkamp, E. A. Helmkamp 2007-8-29 12826 Yuba Northern Sierra Nevada Mountains Foothills, Mountain House Road 0.6 mile west of the Sierra Co. line; Sleighville area beside Willow Creek 1021 Comment
  SEINET13710837  Polygonum punctatum Lowell William Ahart, Lowell William Ahart 1999-1 8243 Yuba 5 Air Mi. NE of Marysville Comment
  JEPS35373  Polypodium calirhiza Mrs. S. M. Rust Yuba Comment
  UCD90518  Polypogon australis Beecher Crampton 1965-6-17 7374 Yuba Ca. 3/4 mile north of Stanfield Hill, Willow Glen Creek. 396 Comment
  CAS-BOT-BC233032  Polypogon interruptus Lowell Ahart 1979-6-25 s.n. Yuba 2 miles E of Challenge 700 Comment
  CHSC44592  Polypogon interruptus Lowell Ahart 1979-6-25 1951 Yuba Along the gutter of the dirt road, about 2 miles east of Challenge. 640 Comment
  UCD149780  Polypogon interruptus William Anderson 1965-6-19 s.n. Yuba Between Rackerby and Challenge. Comment
  CAS-BOT-BC233243  Polypogon maritimus Gordon H. True; J. T. Howell 1967-6-13 3560 Yuba Edge of reservoir, Camp Far West Reservoir on Bear River E of Wheatland 60 Comment
  CHSC78226  Polypogon maritimus Lowell Ahart 2000-6-11 8465 Yuba On the bottom of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  JEPS98576  Polypogon maritimus Lowell Ahart 2000-6-11 8465 Yuba 6 mi (air) S of Smartville (bottom of a deep wash, a N branch of Dry Creek, 2 mi N of int. of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  UCD91182  Polypogon maritimus Beecher Crampton 1957-6-5 4114 Yuba Along State Hwy. 20, 10 miles east of Marysville. Comment
  UC1153916  Polypogon maritimus Beecher Crampton 1957-6-5 4114 Yuba along State Hwy. 20, 10 miles east of Marysville Comment
  JEPS113403  Polypogon monspeliensis Lowell Ahart 2007-5-14 13882 Yuba Dry red bare soil, on the bottom of a swale, about 250 yards west of the power tower, power tower is about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  UCD91224  Polypogon monspeliensis A. A. Beetle 1941-6-26 2734 Yuba Near Marysville. Comment
  UCD91415  Polypogon monspeliensis Barbara Yungert 1974-5-9 G- 9 Yuba Near ald spring runoff, F 1-43 project area, Sierra Foothill Field Station. Comment
  JEPS124289  Polystichum imbricans subsp. curtum Lowell Ahart 2015-10-23 20580 Yuba About 1/4 mile southwest of the Slate Creek Dam, about 2 miles (air) northeast of La Porte Road, about 6 1/4 miles (air) southwest of La Porte. Comment
  UCR206950  Polystichum imbricans subsp. imbricans George K. Helmkamp, E. A. Helmkamp 2009-5-28 14831 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 Comment
  JEPS95098  Polystichum munitum Lowell Ahart 1997-8-7 7830 Yuba ca. 3 (air) mi. e. Challenge (on w. side of dirt rd. on s. side of Indian Creek) 762 Comment
  CAS-BOT-BC102412  Populus fremontii A. Eastwood 1919-9-1 s.n. Yuba Marysville, along levee Comment
  CHSC113178  Portulaca oleracea Lowell Ahart 2013-11-30 19305 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  JEPS103520  Potamogeton foliosus var. foliosus Lowell Ahart 2002-10-8 9941 Yuba In a pond, ca 100 yards N of Long Ravine Road, ca 300 yards SE of the intersection of Camp Far West Road and Long Ravine Road there is a poor gate on the N side of the road, N of Camp Far West Reservoir. 121 Comment
  CHSC96981  Potamogeton natans Lowell Ahart 2007-8-7 14413 Yuba Hampshire Creek Meadow, about 5 yards west of the dirt road, about 1 mile (air) east of Clipper Mills. In shallow water, on the east side of a small pond, on the west side of the dirt road. 1021 Comment
  CDA15875  Potamogeton pectinatus E. Storm 2000-2-1 PDR 1199213 Yuba Peach Tree Golf Course, Simpson Dantoni Rd., Marysville. 0 Comment
  CAS-BOT-BC454055  Potamogeton pusillus subsp. pusillus W. V. Middlekauff 1955-7-4 s.n. Yuba 3 miles n.w. of Rio Oso Post Office Comment
  CHSC82364  Potamogeton pusillus var. pusillus Lowell Ahart 2002-6-3 9687 Yuba Man made pond, about 1/4 mile south of Long Ravine Road, about 1/8 mile east of the intersection of Camp Far West Road and Long Ravine Road there is a poor Texas gate on the south side of the road, north of Camp Far West Reservoir. 106 Comment
  JEPS103560  Potamogeton pusillus var. pusillus Lowell Ahart 2002-6-3 9687 Yuba Man made pond, ca 1/4 mile S of Long Ravine Road, ca 1/8 mile E of the intersection of Camp Far West Road and Long Ravine Road there is a poor Texas gate on the S side of the road, N of Camp Far West Reservoir. 106 Comment
  UCR196991  Potentilla glandulosa subsp. reflexa George K. Helmkamp, E. A. Helmkamp 2008-5-20 13461 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  JEPS95373  Potentilla gracilis var. fastigiata Lowell Ahart 1994-6-27 7382 Yuba 4 mi NE of Strawberry Valley (E of the logging road E of Schwartz Meadow, E side of La Porte Road) 1219 Comment
  UCD113987  Poterium sanguisorba Barbara Yungert 1974-5-9 144 Yuba Southern SC-14 project area, Sierra Foothill Field Station. Comment
  UC1118479  Pseudognaphalium californicum M. A. Elvin 1933-7-6 41 Yuba 2.5 mi w of Bridgeport; Smartsville Quadrangle 304 Comment
  CHSC97693  Pseudognaphalium luteoalbum Lowell Ahart 2007-11-1 14534 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  JEPS124145  Pseudognaphalium luteoalbum Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20636 Yuba Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  UCD135082  Pseudognaphalium luteoalbum G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12833 Yuba Northern Sierra Nevada Mountains: along Hwy CA-49, 0.5 mile south of Camptonville. 817 Comment
  CHSC69412  Pseudognaphalium thermale Lowell Ahart 1997-8-30 7881 Yuba On the west side of the dirt road, near a road culvert, about one mile (air) south of Woodleaf. 944 Comment
  CAS-BOT-BC80098  Pseudotsuga menziesii Alice Eastwood 1918-4-7 6806 Yuba Camptonville Comment
  UCD135124  Pseudotsuga menziesii var. menziesii Kathleen Keliher 1975-5-6 91 Yuba Ca. 30 meters from La Porte Road on Forbestown Road, 1 mile east of Woodleaf. 929 Comment
  UCR258551  Psilocarphus brevissimus var. brevissimus George K. Helmkamp, Amy Barnes 2013-3-28 20257 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  CAS-BOT-BC361737  Psilocarphus brevissimus var. brevissimus John Thomas Howell; Gordon H. True 1971-5-26 47608 Yuba About 8 miles east of Marysville 30 Comment
  CHSC97475  Psilocarphus oregonus Lowell Ahart 2007-5-12 13774 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CAS-BOT-BC361867  Psilocarphus oregonus John Thomas Howell; Gordon H. True 1971-5-26 47609 Yuba About 8 miles east of Marysville 30 Comment
  SEINET7042647  Psilocarphus oregonus A. G. Vestal 1963-5-30 s.n. Yuba Weedy depression near Dry Creek and north oh Sicard Flat. Smartville quadrangle UTM Zone 10, 642203mE, 4345148mN. Comment
  CAS-BOT-BC72537  Pteridium aquilinum John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54077 Yuba About 2 miles northeast of Dobbins on Oregon Hill Road in Transition Zone Forest 701 Comment
  UCR196996  Pteridium aquilinum var. pubescens George K. Helmkamp, E. A. Helmkamp 2008-5-20 13488 Yuba Foothills, northern Sierra Nevada Mountains, Camptonville, at the junction of Henness Pass Road and CA-49 823 Comment
  SEINET7085243  Pterospora andromedea Steven R. Hill 2010-7-17 38554 Yuba Along La Porte Road, 950 feet northeast of Travis Saddle and the road to Sly Creek Reservoir Dam. 13.6 kilometers north-northwest of Camptonville. Just southwest of Strawberry Valley Sierra Nevada. Coordinate Datum: WGS84/NAD83. 1103 Comment
  JEPS107404  Pterostegia drymarioides Lowell Ahart 2005-3-11 11617 Yuba Large rock outcrop, south slope, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica 395 Comment
  CAS-BOT-BC105018  Quercus X morehus C. R. Quick 1947-10-2 47 -84 Yuba 9-10 mi NE of Brown's Valley, on road to Challenge, just W of Stanfield Hill Comment
  CAS-BOT-BC86018  Quercus X morehus Carl B. Wolf 1930-10-12 1739 Yuba along the Yuba River near bridge on Browns Valley to Smartville Road 152 Comment
  UCD47014  Quercus X morehus H. H. Keifer 1953-10-11 s.n. Yuba Tree at lake near Dobbins, Yuba County, California. Comment
  UCD47042  Quercus X morehus Kathleen Keliher 1975-5-31 127 Yuba Along Scotts-Forbes Road, SC-15 project area, Sierra Foorhill Field Station, Yuba County, California. Comment
  UCD40459  Quercus chrysolepis Rodney Gale Myatt 1972-1 1484 -11 Yuba Lake Francis. Lower edge of small creek (dry in summer), which empties into a small, damned basin. 550 Comment
  UCD40460  Quercus chrysolepis Rodney Gale Myatt 1971-11-1 1524 -5 Yuba Oregon Creek-Middle Fork Yuba River. Yuba River where smaller Oregon Creek is confluent. 640 Comment
  UCD40461  Quercus chrysolepis Rodney Gale Myatt 1973-7-1 1592 -2 Yuba Bullard's Bar Dam. 550 Comment
  UCD82665  Quercus chrysolepis Rodney Gale Myatt 1972-1 1484 -8 Yuba Lake Francis. Lower edge of small creek (dry in summer), which empties into a small, damned basin. 550 Comment
  UCD82666  Quercus chrysolepis Rodney Gale Myatt 1972-1 1484 -6 Yuba Lake Francis. Lower edge of small creek (dry in summer), which empties into a small, damned basin. 550 Comment
  UCD82668  Quercus chrysolepis Rodney Gale Myatt 1973-7-1 1592 -14 Yuba Bullard's Bar Dam. 550 Comment
  CAS-BOT-BC86014  Quercus douglasii Carl B. Wolf 1930-10-12 1737 Yuba along Yuba River near Hammonton 152 Comment
  CAS-BOT-BC86017  Quercus douglasii Carl B. Wolf 1930-10-12 1739 Yuba along the Yuba River near bridge on Browns Valley to Smartville Road 152 Comment
  CAS-BOT-BC94993  Quercus douglasii R. C. Wenk 2008-7-18 977 Yuba 5 mi. from HIghway 20 going E from Marysville, along Peoria and Scott Forbes roads. 204 Comment
  RSA1860  Quercus douglasii Carl B. Wolf 1930-10-12 1737 Yuba Along the Yuba River near Hammondon 152 Comment
  CHSC47426  Quercus durata var. durata Lowell Ahart 1976-7-11 999 Yuba Near the intersection of Forbestown Road and Abernathy Road, about 3 miles north of Challenge. 853 Comment
  CHSC96586  Quercus garryana var. breweri L. P. Janeway 2006-5-24 8618 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way 1.6 road km north of La Porte Road and Brownsville. 680 Comment
  CAS-BOT-BC94268  Quercus garryana var. semota Lowell Ahart 1981-8-7 3021 Yuba Near the Brownsville Dump, about 2 miles SW of Brownsville 600 Comment
  CHSC96486  Quercus kelloggii Lowell Ahart 2007-4-17 13685 Yuba On the north side of the poor dirt fireguard, about 50 yards northwest of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  JEPS113099  Quercus kelloggii Lowell Ahart 2007-4-17 13685 Yuba On the north side of the poor dirt fireguard, about 50 yards northwest of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  UCD46660  Quercus kelloggii Barbara Yungert 1974-6-5 197 Yuba East Road 4, L 1-21 project area, Sierra Foothill Field Station, Yuba County, California. Comment
  CDA20045  Quercus lobata P. Akers 2002-9-19 StB- 079 Yuba Sacramento Valley; E of Marysville on Smartville & Beale AFB Rd, 0.1 mi S of Waldo Rd. 94 Comment
Read comments Jun 12 2008
  CDA20046  Quercus lobata P. Akers 2002-9-19 StB- 080 Yuba Sacramento Valley; E of Marysville on Smartville & Beale AFB Rd, 0.1 mi S of Waldo Rd. 0 Comment
Read comments Jun 12 2008
  UCD46814  Quercus lobata Barbara Yungert 1974-6-5 195 Yuba Along Porter Creek, south of station headquarters, Sierra Foothill Field Station, Yuba County, California. Comment
  CAS-BOT-BC94996  Quercus wislizeni R. C. Wenk 2008-7-18 978 Yuba 5 mi. from Highway 20 going east from Marysville, along Peoria and Scott Forbes Roads 204 Comment
  UCD112042  Quercus wislizeni Christopher Mallek 2008-5-5 IC3- 11 Yuba Indiana Creek. 617 Comment
  CHSC90462  Quercus wislizeni var. wislizeni Lowell Ahart 2005-3-11 11621 Yuba On the east side of the poor dirt road, about 1/2 mile west of Marysville Road, about 1/4 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/4 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 344 Comment
  CHSC78161  Ranunculus aquatilis var. aquatilis Lowell Ahart 2000-6-11 8466 Yuba On the bottom of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  UCD95785  Ranunculus arvensis Beecher Crampton 1957-6-5 4127 Yuba 2.6 miles northeast of Brown's Valley Post Office. Comment
  CAS-BOT-BC263233  Ranunculus bonariensis var. trisepalus Lowell Ahart 2007-5-12 13811 Yuba About 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC97649  Ranunculus bonariensis var. trisepalus Lowell Ahart 2007-5-12 13811 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  RSA0019380  Ranunculus bonariensis var. trisepalus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17205 Yuba junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 ) of Wheatland. 56 Comment
  RSA647815  Ranunculus californicus E. H. Cowen 1948-3-10 s.n. Yuba near railroad tracks east side 8.5 mi S of Marysville Comment
  CHSC97672  Ranunculus muricatus Lowell Ahart 2007-5-12 13812 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCR230633  Ranunculus muricatus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17200 Yuba East edge of Sacramento Valley, Spenceville Road, 4.2 miles northwest of Wheatland 55 Comment
  SEINET5718617 Image available Ranunculus muricatus Gerald Pullman 1974-1 28 Yuba 3 miles 20 degrees east of north from Station Headquarters, University of California Sierra Foothill Range Field Station.; UC Foothill Field Station 457 Comment
  UCD96262  Ranunculus muricatus Barbara Yungert 1974-4-10 15 Yuba Sieera Foothill Field Station. West of station headquarter, SC-5 project area. Comment
  UCD96791  Ranunculus occidentalis R. O. Hanes 1992-4-6 47 Yuba Plumas Forest. 731 Comment
  UCD96793  Ranunculus occidentalis R. O. Hanes 1992-4-6 48 Yuba Plumas Forest. 731 Comment
  UCD96949  Ranunculus occidentalis Barbara Yungert 1974-4-4 3 Yuba Sierra Foothill Field Station. Along dirt road north of Yuba River, F-2 project area. Comment
  CHSC110341  Ranunculus occidentalis var. occidentalis L. P. Janeway; Tim Hanson 2013-4-25 11090 Yuba Northern High Sierra Nevada. Plumas National Forest; headwaters area of Burnt Bridge Creek; between Oregon Hill Road and Oregon Hills; 1.8 air km north of Oregon Peak. 828 Comment
  CHSC45407  Ranunculus occidentalis var. occidentalis Lowell Ahart 1973-5-6 216 Yuba Near Challenge. 762 Comment
  CHSC45408  Ranunculus pusillus Lowell Ahart 1978-4-21 1658 Yuba Along the edge of a rice field, on the Sam Shintaffer Farm, west of Kimball Lane, about 2 miles north-east of Marysville. 30 Comment
  CHSC42048  Reseda luteola Lowell Ahart 1986-5-14 5274 Yuba Along Scott Grant Road, about 1 mile south-east of Loma rica road, about 4 miles east of Loma Rica. 152 Comment
  UCR168221  Rhamnus californica subsp. tomentella C. B. Wolf 1927-11-6 1447 Yuba Brown's Valley to Smartville Road, along left bank of Yuba River, near bridge 152 Comment
  CHSC100721  Rhamnus crocea L. P. Janeway 2008-5-11 9360 Yuba Northern High Sierra Nevada. In the northwestern head of Slapjack Creek; along Road 19N34, 1.3 road km southeast of Challenge-La Porte Road; about 1.2 km south-southeast of Woodleaf. 940 Comment
  CHSC100772  Rhamnus crocea L. P. Janeway 2008-5-11 9355 Yuba Northern High Sierra Nevada. About 0.8 km north-northeast of Challenge; Golden Gate Ravine side of the ridge between that and Jordan Creek; west side of Road 19N04 1.1 km north-northwest of Challenge-La Porte Road. Near head of dry northwest-sloping swale. 994 Comment
  CAS-BOT-BC59382  Rhamnus ilicifolia Carl B. Wolf 1927-11-6 1449 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  OBI5939  Rhamnus ilicifolia Carl B. Wolf 1927-11-6 1449 Yuba Browns Valley to Smartsville rd, along left bank of Yuba river, near bridge 152 Comment
  RSA7702  Rhamnus ilicifolia Carl B. Wolf 1927-11-6 1448 Yuba Along the Yuba River near bridge on the Browns Valley to Smartsville Road. Comment
  RSA7795  Rhamnus ilicifolia Carl B. Wolf 1927-11-6 1449 Yuba Along the Yuba River near bridge on the Browns Valley to Smartsville Road. Comment
  UC1121897  Rhamnus ilicifolia M. A. Elvin 1933-7-7 35 Yuba 1.5 mi s Virginia Ranch; Smartsville Quad. 274 Comment
  UC1311875  Rhamnus ilicifolia B. F. Smith 1965-7-20 57 Yuba 670 Comment
  SEINET10493671  Rhamnus ilicifolia Mary Susan Taylor, L. Hanson 1981-4-15 Taylor 3538 Yuba T19N R7E ne/nw sec 17, Clipper Mills quad. S side of Rd 19N44, in Golden Gate Ravine, ca. 1.5 mi SW of Woodleaf. 2800 ft. 853 Comment
  CHSC96589  Rhamnus tomentella subsp. tomentella L. P. Janeway 2006-5-24 8625 Yuba Northern Sierra Nevada Foothills. Along east side of Ponderosa Way 1.3 road km north of La Porte Road and Brownsville. 686 Comment
  RSA601955  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba Browns Valley to Smartsville road, along left bank of Yuba River, near Bridge 152 Comment
  RSA7866  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba Along the Yuba River near bridge on the Browns Valley to Smartsville Road. Comment
  UC592797  Rhamnus tomentella subsp. tomentella unknown 1927-11-6 1445 Yuba Browns Valley to Smartsville road (along left bank of Yuba River, near bridge); Yuba River Comment
  UC592798  Rhamnus tomentella subsp. tomentella unknown 1927-11-5 1444 Yuba Browns Valley to Smartsville road (along left bank of Yuba River, near bridge); Yuba River 152 Comment
  CHSC43531  Rhododendron occidentale Lowell Ahart 1979-6-25 1956 Yuba Near the dirt road, about 2 miles east of Challenge. 640 Comment
  UC566050  Rhododendron occidentale M. A. Elvin 1933-7-14 53 Yuba Greenville 762 Comment
  RSA471033  Rhododendron occidentale var. californicum Anstruther Davidson 1876-7-7 s.n. Yuba Strawberry Valley Comment
  CHSC116585  Rhynchospora capitellata L. P. Janeway 2015-7-1 11796 Yuba Northern High Sierra Nevada. Plumas National Forest; headwters of cottage Creek, one of a series of meadows; 0.15 km soutwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. 815 Comment
  CAS-BOT-BC212665  Ribes nevadense Rimo Bacigalupi 1927-7-2 1591 Yuba Highway to Downieville, about 8 miles NE of Camptonville Comment
  CHSC45977  Ribes roezlii Lowell Ahart 1975-5-4 751 Yuba Near Brownsville. 609 Comment
  UCD102460  Ribes roezlii Kathleen Keliher 1975-5-6 87 Yuba Along Forbestown Road, 100 feet from La Porte Road, 1 mile east of Woodleaf. 929 Comment
  CAS-BOT-BC209277  Ribes roezlii var. roezlii Alice Eastwood 1918-4-7 6796 Yuba Camptonville Comment
  UCD81499  Romulea rosea var. australis Christopher Michael Bronny 2009-4-1 11 Yuba Oat Hills' area of Sierra Nevada foothills. 183 Comment
  JEPS115020  Rorippa curvisiliqua Lowell Ahart 2007-11-1 14542 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  CHSC97695  Rorippa curvisiliqua var. curvisiliqua Lowell Ahart 2007-11-1 14542 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  CHSC81770  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2001-11-2 9398 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  CHSC97747  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2007-11-8 14588 Yuba North of the waterway between the headland and the large island, on the strand of Camp Far West Reservoir, about 1/4 mile south of Rock Creek, about 1/2 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  JEPS103275  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2002-6-3 9690 Yuba On the bottom of the pond spillway, second small man made pond, about 1/4 mile south of Long Ravine Road, about 1/8 mile east of the intersection of Camp Far West Road and Long Ravine Road, north of Camp Far West Reservoir. 102 Comment
  JEPS115008  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2007-11-8 14588 Yuba North of the waterway between the headland and the large island, on the strand of Camp Far West Reservoir, about 1/4 mile south of Rock Creek, about 1/2 mile north of Bear River, about 6 miles (air) northeast of Sheridan 73 Comment
  CHSC97750  Rorippa curvisiliqua var. orientalis Lowell Ahart 2007-11-8 14587 A Yuba North of the waterway between the headland and the large island, on the strand of Camp Far West Reservoir, about 1/4 mile south of Rock Creek, about 1/2 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  JEPS103442  Rorippa curvisiliqua var. orientalis Lowell Ahart 2002-10-9 9953 Yuba Area E of a spring, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS115015  Rorippa curvisiliqua var. orientalis Lowell Ahart 2007-11-8 14587 Yuba North of the waterway between the headland and the large island, on the strand of Camp Far West Reservoir, about 1/4 mile south of Rock Creek, about 1/2 mile north of Bear River, about 6 miles (air) northeast of Sheridan 73 Comment
  CHSC113651  Rosa bridgesii L. P. Janeway 2014-5-20 11256 A Yuba Northern High Sierra Nevada. Plumas National Forest; 1.9 air-km southeast of Pike County Peak, 4.1 air-km southeast of Challenge; near Road 29N38. 928 Comment
  CHSC113652  Rosa bridgesii L. P. Janeway 2014-5-20 11256 B Yuba Northern High Sierra Nevada. Plumas National Forest; 1.9 air-km southeast of Pike County Peak, 4.1 air-km southeast of Challenge; near Road 29N38. 928 Comment
  CHSC118508  Rosa bridgesii L. P. Janeway 2016-5-11 11962 Yuba Northern High Sierra Nevada. Plumas National Forest; near head of eastern tributary of Indian Creek; west side of Road 19N53 0.4 road-km south of Road 29N13. 920 Comment
  CHSC43460  Rosa bridgesii Lowell Ahart 1973-5-6 218 Yuba About 1 mile north of Challenge. 762 Comment
  CHSC62494  Rosa bridgesii B. Castro 1987-5-8 73 Yuba Ca 3.2 road mi SW of bridge over Slate Creek, near North Star. Along roadside. 1249 Comment
  CHSC69152  Rosa bridgesii Lowell Ahart 1997-8-7 7828 Yuba On the east side of the dirt road, near a unnamed stream, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  CHSC80967  Rosa bridgesii Lowell Ahart 2001-8-2 9052 Yuba On the south edge of the dirt road, Peterson Ridge Road, about 2 miles northeast of Oregon Hill Road, about 3 miles (air) southeast of Challenge. 701 Comment
  CHSC84149  Rosa bridgesii Lowell Ahart 2003-7-2 10342 Yuba About 200 yards south of the 4-H Camp, on the west side of Oregon Hill Road, about 1/2 mile north of Marysville Road, about 2 miles (air) northeast of Dobbins. 815 Comment
  CHSC84989  Rosa bridgesii Lowell Ahart 2003-10-11 10627 Yuba On both sides of the paved road to Scales, about 1 mile south of La Porte Road, about 1 1/2 miles (air) south of Sly Creek, about 1 1/2 miles northeast of Strawberry Valley. 1219 Comment
  CHSC87348  Rosa bridgesii Lowell Ahart 2004-4-27 10762 Yuba Near a large wide trail, very start of a small drainage, drainage crosses a water ditch and continues on and crossed the road, about 350 yards northwest of the road, serpentine area, about 40 yards southwest of the marker for sections 9, 10, 16, and 15, about 1/2 mile (air) southeast of Woodleaf. 1012 Comment
  CHSC95060  Rosa bridgesii L. P. Janeway 2006-5-24 8611 Yuba Northern High Sierra Nevada Foothills. Along Ponderosa Way 1.0 road km southeast of Robinson Mill Road; 1.2 air km southeast of Robinson Mills and Forbestown Road. 768 Comment
  JEPS102599  Rosa bridgesii Lowell Ahart 2001-8-2 9052 Yuba On the south edge of the dirt road, Peterson Ridge Road, about 2 miles NE of Oregon Hill Road, about 3 miles (air) SE of Challenge. 701 Comment
  CAS-BOT-BC147669  Rosa canina John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54079 Yuba About 2 miles northeast of Dobbins on Oregon Hill Road 701 Comment
  JEPS120549  Rosa canina L. P. Janeway 2013-7-2 11181 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, one of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. Comment
  UCD113397  Rosa canina Barbara Yungert 1974-5-16 157 Yuba Sierra Foothill Field Station. North of road near irrigation ditch, SC-13 project area. Comment
  CDA14574  Rosa gymnocarpa G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3055 Yuba La Porte _ Quincy Road 3.6 miles northeast of Strawberry Valley at the Plumas county line. 1280 Comment
  CHSC80968  Rosa gymnocarpa Lowell Ahart 2001-8-2 9051 Yuba On the south edge of the dirt road, Peterson Ridge Road, about 2 miles northeast of Oregon Hill Road, about 3 miles (air) southeast of Challenge. 701 Comment
  JEPS104272  Rosa gymnocarpa Lowell Ahart 2003-10-11 10628 Yuba On both sides of the paved road to Scales, ca 1 mi south of La Porte Rd, ca 1 1/2 mi (air) south of Sly Creek, ca 1 1/2 mi ne of Strawberry Valley. 1219 Comment
  JEPS104091  Rosa pisocarpa Lowell Ahart 2003-10-11 10623 Yuba On the w margins of a meadow, on the e side of a gravel road to the Rose Ranch, ca 100 yd w of the paved road to Scales, ca 1/2 mi south of the Rose Ranch, ca 5 mi (air) ne of Strawberry Valley, ca 7 mi (air) sw of La Porte. 1219 Comment
  JEPS95416  Rosa pisocarpa subsp. ahartii Lowell Ahart 1994-6-27 7383 Yuba 4 mi NE of Strawberry Valley (E of the logging road E of Schwartz Meadow, E side of La Porte Road) 1219 Comment
  CAS-BOT-BC146875  Rosa rubiginosa H. K. Wagnon; T. C. Fuller 1964-5-18 11987 Yuba N. of Hwy 20 to Grass Valley, 0.8 mi. e. of Smartsville Comment
  JEPS127624  Rosa rubiginosa L. P. Janeway 2015-6-30 11788 Yuba Northern High Sierra Nevada. Plumas National Forest; Weiss Hill Meadow, a large meadow 600 air-km east-southeast of junction of Weiss Hill Road and Forbestown Road; at the head of a minor northwestern tributary to New York Creek. Forbestown 7.5' Quad. Comment
  SBBG50611  Rosa rubiginosa P. Sawtelle 1974-5-12 32 Yuba Peoria Rd, 0.25 mi from St Hwy 20 Comment
  SD130473  Rotala indica Lowell Ahart 1977-8-31 Yuba 2.0 miles northeast of Marysville; Sam Shintaffer Farm. 29 Comment
  SFV8306  Rotala indica J. F. Williams 1974-10-8 s. n. Yuba Sacramento Valley Rice field (Henry Taylor grower) on Tanabe Road, northeast of Marysville. 25 Comment
  CHSC76284  Rotala ramosior Lowell Ahart 1999-9-17 8246 Yuba On the margins of a rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  CDA37502  Rotala ramosior L. Ahart 1999-9-17 8246 Yuba South of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer s rice dryer, about 5 miles (air) northeast of Marysville. Comment
  CHSC108221  Rubus armeniacus Lowell Ahart 2011-6-7 17410 Yuba Along the edge of the dirt road, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCD113562  Rubus armeniacus D. H. Hartmann 1941-10-11 s.n. Yuba 15 miles east of Marysville, along U.S. #20. Comment
  JEPS118292  Rubus discolor Lowell Ahart 2011-6-7 17410 Yuba Along the edge of the dirt road, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  SEINET3016174  Rubus laciniatus L. Ahart 1997-8-7 7815 Yuba On the bottom of a small stream, a branch of Little Oregon Creek, on the Wside of the dirt road, Peterson Ridge Rd., about 3 mi (air) SE of Challenge. 762 Comment
  UCD17935  Rubus ursinus H. Olmo; T. S. Mallah 1953-3-24 53 27 B Yuba California. Yuba County: Highway 28 in Smartville. Growing 50 yards east of bridge on creek bank. Comment
  UCD101666  Rumex Barbara Yungert 1974-5-8 134 Yuba Along dirt road, N of Yuba River. Sierra Foothill Field Station. Comment
  UCR206956  Rumex acetosella George K. Helmkamp, E. A. Helmkamp 2009-5-28 14828 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 Comment
  JEPS118301  Rumex conglomeratus Lowell Ahart 2011-6-7 17407 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CAS-BOT-BC421731  Rumex conglomeratus Gordon H. True; J. T. Howell 1967-6-13 3561 Yuba Camp Far West Reservoir on Bear River east of Wheatland 60 Comment
  CHSC108189  Rumex crispus Lowell Ahart 2011-6-7 17408 Yuba East of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  RSA727115  Rumex pulcher L. Ahart 2007-5-14 13868 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  CAS-BOT-BC445724  Sagittaria latifolia Lowell Ahart 1977-9-25 s.n. Yuba Sam Shintaffer Farm, 2 mi. northeast of Marysville. 35 Comment
  CHSC76296  Sagittaria latifolia var. obtusa Lowell Ahart 1999-9-17 83 =259 Yuba Rice field, Sam Shintaffer Farm, about 1/8 mile southeast of the intersection of Ellis Avenue and Jack Slough Road, about 4 miles (air) northeast of Marysville. 21 Comment
  CAS-BOT-BC445807  Sagittaria montevidensis Lowell Ahart 1977-8-31 s.n. Yuba Sam Shintaffer Farm, 2 mi. northeast of Marysville. 30 Comment
  CHSC76297  Sagittaria montevidensis subsp. calycina Lowell Ahart 1999-9-17 8237 Yuba In a rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  JEPS95980  Sagittaria montevidensis subsp. calycina Lowell Ahart 1999-9-17 8237 Yuba south of Woodruff Lane; just east of Mathews Road; east of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  CHSC108202  Salix exigua Lowell Ahart 2011-6-7 17414 Yuba Just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CAS-BOT-BC104030  Salix gooddingii Saichi Kawahara 1968-4-13 288 Yuba Park's Bar, north bank of the Yuba River at highway 20 91 Comment
  CAS-BOT-BC104032  Salix gooddingii C. Hart Merriam 1906-9-1 s.n. Yuba Mouth of the Yuba River, Marysville Comment
  CHSC108846  Salix lasiolepis Lowell Ahart 2012-2-28 17757 Yuba On the north side of Fruitland Road, about 13 miles northeast of Marysville. 32 Comment
  JEPS119505  Salix lasiolepis Lowell Ahart 2012-2-28 17758 Yuba About 1/2 mile east of Ramirez Road, about 13 miles northeast of Marysville. Comment
  JEPS122454  Salix lasiolepis L. P. Janeway 2014-6-26 11424 Yuba Northern High Sierra Nevada. Plumas National Forest; small ephemeral meadow on a flattish bench at head of ephemeral northeastern tributary to Little Oregon Creek; 1.9 air km south-southeast of Pike County Peak; 0.24 km northeast of Oregon Hill Road, 0.15 km south of Peterson Ridge Road. Quad: Challenge 7.5'. Comment
  SBBG126079  Salix lasiolepis L. Ahart 2012-2-28 17758 Yuba N side of Fruitland Rd, ca 0.5 mi E of Ramirez Rd, ca 13 mi NE of Marysville 32 Comment
  CHSC98985  Salix lasiolepis var. lasiolepis Lowell Ahart 2008-5-14 14763 Yuba On the south side of Costa Creek, about 200 yards east of Forbestown Road, about 3 miles (air) east of Forbestown. 837 Comment
  RSA754941  Salix lasiolepis var. lasiolepis L. Ahart 2008-5-14 14763 Yuba South side of Costa Creek, about 200 yards east of Forbestown Road, about 3 air miles east of Forbestown. 838 Comment
  UCD162402  Salpichroa origanifolia Lemuel Osborne Jr. 1956-10-17 s.n. Yuba south of Marysville near the Feather River. Comment
  CDA20939  Salsola ryanii P. Akers 2002-9-19 RT- 10 -2 Yuba Sacramento Valley; Smartville Rd., 0.3 mi. N of Daugherty. 30 Comment
  CDA20940  Salsola ryanii P. Akers 2002-9-19 RT- 10 -3 Yuba Sacramento Valley; Smartville Rd., 0.3 mi. N of Daugherty. 30 Comment
  CHSC114917  Salsola tragus P. Akers 2002-9-19 Yuba NE corner of Hwy 65 and Rancho Rd., 3 mi. NW of Wheatland. 12 Comment
  CHSC93878  Salvia sonomensis L. P. Janeway 2006-5-24 8613 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way 1.3 road km southeast of Robinson Mill Road; 1.3 air km southeast of Robinson Mills and Forbestown Road. 771 Comment
  CHSC96572  Salvia sonomensis L. P. Janeway 2006-5-24 8628 Yuba Northern Sierra Nevada Foothills. Along Forsythe road 2.7 road km south of New York House Road; above Prince Albert Creek. 604 Comment
  UC1124850  Salvia sonomensis M. A. Elvin 1933-6-23 29 Yuba 1 mi W of Hansonville 426 Comment
  UCR169027  Sambucus mexicana David Charlton 2005-5-16 8023 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  JEPS100359  Sanguisorba annua Dean W. Taylor 2001-6-6 17779 Yuba 3 air mi NE of Strawberry Valley (Slate Creek, at bridge of Forest Road 35); Yuba River Watershed 1036 Comment
  JEPS118093  Sanicula bipinnatifida Lowell Ahart 2011-6-7 17371 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  SBBG5262  Sanicula bipinnatifida H. and M. Dearing 1939-5-8 3299 Yuba near Bullard's Bar Comment
  UC566861  Sanicula bipinnatifida H. L. Mason 1927-5-11 3733 Yuba vicinity of Dobbins 457 Comment
  UCD111110  Sanicula bipinnatifida Christopher Mallek 2008-1 s. n. Yuba Daken Flat. 675 Comment
  UCD127949  Sanicula bipinnatifida Barbara Yungert 1974-4-16 42 Yuba Campbell Valley, Sierra Foothill Field Station. Comment
  CHSC100722  Sanicula bipinnatifida var. flava L. P. Janeway 2008-5-11 9362 Yuba Northern High Sierra Nevada. In the northwestern head of Slapjack Creek; along Road 19N34, 1.3 road km southeast of Challenge-La Porte Road; about 1.2 km south-southeast of Woodleaf. 940 Comment
  JEPS121745  Sanicula bipinnatifida var. flava L. P. Janeway 2014-4-24 11235 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. Comment
  CHSC70779  Sanicula graveolens B. Castro; L. Gehrung 1995-6-2 572 Yuba Ca 2 air mi SE of Strawberry Valley, 0.5 to 0.8 mi N of the N Fork Yuba River, on S-trending ridge to Weed Point. Along both sides of USFS Rd 20N81. 1021 Comment
  JEPS88900  Sanicula tuberosa Lowell Ahart 1994-6-5 7302 Yuba about 3 air mi e Forbestown (on s side of Costa Creek, on e side of Forbestown Road); s side of Costa Creek 853 Comment
  JEPS88901  Sanicula tuberosa Lowell Ahart 1994-6-5 7302 Yuba about 3 air mi e Forbestown (on s side of Costa Creek, on e side of Forbestown Road); Costa Creek, Forbestown Road 853 Comment
  JEPS100351  Saponaria officinalis Dean W. Taylor 2001-6-21 17810 Yuba canyon of the North Fork Yuba River, near the confluence of Canyon Creek at Kelly Bar 609 Comment
  SEINET13203136 Image available Scandix pecten-veneris George K. Helmkamp 2014-1 22766 Yuba Sierra Nevada Mountains Foothills: Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville (Smartsville 7.5' Q.) 264 Comment
  UCR257126  Scandix pecten-veneris George K. Helmkamp 2014-4-17 22766 Yuba Sierra Nevada Foothills, Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville 264 Comment
  UCD128137  Scandix pecten-veneris Barbara Yungert 1974-4-25 82 Yuba SC-14 project area, Sierra Foothill Field Station. Comment
  CHSC76306  Schoenoplectus mucronatus Lowell Ahart 1999-9-17 8249 Yuba Sam Shintaffer Farm, south of Woodruff Lane, south of Mathews Road, 100 yards south of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  CHSC63197  Scirpus microcarpus Lowell Ahart 1994-6-27 7388 Yuba Near the north-east side of Schwartz Meadow, on the eastside of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  JEPS95411  Scirpus microcarpus Lowell Ahart 1994-6-27 7388 Yuba 4 mi NE of Strawberry Valley (near the NE side of Schwartz Meadow, on the E side of La Porte Road) 1219 Comment
  JEPS104046  Scirpus setaceus Lowell Ahart 2003-7-6 10363 Yuba In meadow, e of the power line, ca 60 yd nw of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  JEPS104222  Scirpus setaceus Lowell Ahart 2003-7-2 10348 Yuba In a small stream, on the e side of Fountain Hill Rd, ca 3 mi south of Oregon Hill Rd, ca 1/2 mi (air) n of Fountain House Hill, ca 3 mi (air) ne of Dobbins. 841 Comment
  SEINET13710634  Scirpus setaceus Lowell William Ahart, Lowell William Ahart 2003-1 10363 Yuba 5 Air Mi. N Od Dobbins (39 Deg 26'11.7"N, 121 Deg 12'07.3"W) 2746 Ft. 837 Comment
  JEPS113392  Scribneria bolanderi Lowell Ahart 2007-5-14 13855 Yuba Bottom of swales, about 100 yards east of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville 29 Comment
  RSA21285  Scribneria bolanderi C. B. Wolf 1937-5-12 8629 Yuba 4 miles NE of Wheatland on road to Grass Valley 61 Comment
  UCD92503  Scribneria bolanderi Beecher Crampton 1957-6-5 4147 Yuba 1/2 mile west of Oregon House Post Office. Comment
  CHSC78150  Scutellaria bolanderi subsp. bolanderi Lowell Ahart 2000-6-11 8472 Yuba On the east side of a small wash, west of Smartville Road, about 1/8 mile southwest of the intersection of Waldo Road and Smartville Road, about 8 miles (air) south of Smartville. 99 Comment
  CHSC51236  Scutellaria californica Lowell Ahart 1979-6-25 1952 Yuba Peterson Ridge Road, there is a spring near by and the gutter was running water, about 2 miles east of Challenge. 640 Comment
  UC884068  Scutellaria californica Lewis S. Rose 1940-5-28 40387 Yuba Browns Valley 60 Comment
  HSC99328  Scutellaria californica C. B. Wolf 1927-11-5 1441 Yuba Road to Brown's Valley, 8 mi. from Marysville Comment
  POM172693  Scutellaria californica Roxana S. Ferris 1927-11-5 6938 Yuba 7 miles west of Brown Valley. Comment
  UC1713643  Scutellaria siphocampyloides C. Epling 1938-6-1 Yuba near Brownsville (on road to Dobbins) Comment
  CDA42472  Selaginella hansenii L. Ahart 2005-2-28 11565 Yuba West of a poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. Comment
  CHSC90354  Selaginella hansenii Lowell Ahart 2005-2-28 11565 Yuba West of a poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 403 Comment
  JEPS120958  Selaginella hansenii Lowell Ahart 2013-9-11 19027 Yuba On N side of Dry Creek, just above the high water line of Collins Lake, about 300 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  RSA0037130  Selaginella hansenii Lowell A. Ahart 2013-11-30 19312 Yuba On north side of Dry Creek, just above the high water line of Collins Lake, about 300 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 360 Comment
  JEPS106274  Senecio aronicoides Lowell Ahart 2004-4-27 10766 Yuba About 20 yards west of a drainage, about 40 yards south of the road, about 1/2 mile (air) southeast of Woodleaf 931 Comment
  JEPS118293  Senecio vulgaris Lowell Ahart 2011-6-7 17383 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CAS-BOT-BC364538  Senecio vulgaris Lowell Ahart 1979-6-25 s.n. Yuba About one mile south of Challenge 700 Comment
  RSA590207  Senecio vulgaris Michael A. Vincent, Robert M. Rhode 1996-3-29 7247 Yuba Along Ramirez Rd. at RR track and drainage ditch, 3 mi. E of jct. with St.Hwy 70, ca. 6 mi. N of Marysville. Comment
  UCD135866  Senecio vulgaris Barbara Yungert 1974-4-19 19 Yuba north of Yuba River, Sierra Foothill Field Station. Comment
  CHSC44847  Sericocarpus oregonensis Lowell Ahart 1976-10-1 1218 Yuba Along the edge of Marysville Road, near the east side of Bullards Bar Dam. 701 Comment
  UCD135893  Sericocarpus oregonensis subsp. californicus G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12831 Yuba Northern Sierra Nevada Mountains: along Hwy CA-49, 0.5 mile south of Camptonville. 817 Comment
  CAS-BOT-BC364725  Sericocarpus oregonensis subsp. californicus Lowell Ahart 1976-10-1 s.n. Yuba Bullards Bar Dam Comment
  JEPS94367  Setaria pumila Lowell Ahart 1997-8-13 7862 Yuba about 2 1/4 air mi e of Browns Valley (on s side of Scott Forbes Road, 1/4 mi e of intersection of Scott Forbes Road and Peoria Road, just e of Gray Drive); Scott Forbes Road 91 Comment
  UCD92707  Setaria pumila Beecher Crampton 1964-10-22 7223 Yuba 3 miles east of Brown's Valley Dry Creek. Comment
  JEPS102448  Setaria viridis Lowell Ahart 2001-8-14 9109 Yuba On the north side of Marysville Road, about 50 yards east of the east end of Bullards Bar Dam. 609 Comment
  JEPS113723  Setaria viridis Lowell Ahart 2007-5-14 13844 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  JEPS99001  Setaria viridis Lowell Ahart 2001-8-14 9109 Yuba On the north side of Marysville Road, about 50 yards east of the east end of Bullards Bar Dam. 609 Comment
  CHSC97647  Sherardia arvensis Lowell Ahart 2007-5-12 13814 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS118303  Sherardia arvensis Lowell Ahart 2011-6-7 17413 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  RSA726569  Sherardia arvensis L. Ahart 2007-5-12 13814 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  UCD122001  Sherardia arvensis Kathleen Keliher 1975-4-13 62 Yuba Near Lower Cook Road, K 1-11 project area, Sierra Foothill Field Station. 243 Comment
  UCD122009  Sherardia arvensis Barbara Yungert 1974-5-1 104 Yuba Near road and SC-12 fence, SC-14 project area, Sierra Foothill Field Station. Comment
  CDA14565  Sidalcea asprella G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3042 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  CHSC100998  Sidalcea asprella L. P. Janeway 2006-5-24 8630 Yuba Northern Sierra Nevada Foothills. South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. 483 Comment
  UC570264  Sidalcea diploscypha H. S. Yates 1933-5-24 3643 Yuba 3 mi w Cabbage Patch; Smartsville Quad. Comment
  CAS-BOT-BC278071  Sidalcea gigantea Steven R. Hill; et al. 2010-7-17 38555 Yuba 950 feet northeast of Travis Saddle along La Porte Road. 13.6 kilometers north-northwest of Camptonville. Just SW of Strawberry Valley 1100 Comment
  RSA792311  Sidalcea gigantea G. L. Clifton 1996-8-17 35038 Yuba At Travis Saddle along La Porte Road. 1098 Comment
  SEINET7085244  Sidalcea gigantea Steven R. Hill 2010-7-17 38555 Yuba Along La Porte Road, 950 feet northeast of Travis Saddle. 13.6 kilometers north-northwest of Camptonville. Just southwest of Strawberry Valley Sierra Nevada. Type Locality. Coordinate Datum: WGS84/NAD83. 1100 Comment
  SEINET7085245  Sidalcea gigantea Steven R. Hill 2010-7-17 38555 Yuba Along La Porte Road, 950 feet northeast of Travis Saddle. 13.6 kilometers north-northwest of Camptonville. Just southwest of Strawberry Valley Sierra Nevada. Type Locality. Coordinate Datum: WGS84/NAD83. 1100 Comment
  SEINET7085263  Sidalcea gigantea G. L. Clifton 1996-8-17 35038 Yuba At Travis Saddle along La Porte Road, Strawberry Valley, 39? deg. 33'37"N, 121? deg. 07'07"W. 1097 Comment
  UCD80452  Sidalcea hartwegii CNPS SN Foothill Team 2005-6-1 SNFN 0173 b Yuba CDFG Daugherty Hill Wildlife Area, in the 'C' shaped parcel located to the east of the Daugherty Hill Unit. 623 Comment
  UCD116750  Sidalcea hartwegii Barbara Yungert 1974-4-25 87 Yuba east of four wheel drive road, lower SC-14 project area, Sierra Foothill Field Station. Comment
  UCD116752  Sidalcea hartwegii Barbara Yungert 1974-5-4 113 Yuba along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  CHSC97666  Sidalcea hirsuta Lowell Ahart 2007-5-14 13851 Yuba Bottom of a large vernal pool, about 30 yards east of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville. 29 Comment
  JEPS113401  Sidalcea hirsuta Lowell Ahart 2007-5-14 13851 Yuba Bottom of a large vernal pool, about 30 yards east of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville 29 Comment
  SBBG121200  Sidalcea hirsuta L. Ahart 2007-5-14 13851 Yuba bottom of a large vernal pool, ca. 30 yards E of the third power tower, ca. 0.5 mi N of Fruitland Rd, ca. 13.5 mi (air) NE of Marysville 29 Comment
  UCD80458  Sidalcea malviflora CNPS SN Foothill Team 2005-5-31 SNFN 0330 b Yuba BLM, Ponderosa Landfill, near the southeast corner of the parcel (east of the defunct landfill). 685 Comment
  RSA477854  Silene californica J. E. Cramsie 1932-5-1 s.n. Yuba Smartville. Comment
  SEINET11946136  Silene californica F. H. Utech 1990-6-5 90 -867 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  CHSC108191  Silene gallica Lowell Ahart 2011-6-7 17389 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC97483  Silene gallica Lowell Ahart 2007-5-14 13881 Yuba Center of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS113530  Silene gallica Lowell Ahart 2007-5-14 13881 Yuba Center of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  JEPS118057  Silene gallica Lowell Ahart 2011-6-7 17389 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  SD236262  Silene gallica David Charlton 2005-5-16 8024 Yuba Sacramento Valley: Yuba Gold Field; just S of Yuba River; ca. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area ca 2 mi by 1 mi (Browns Valley 7.5'Q). 25 Comment
  SEINET1908330  Silene gallica David Charlton 2005-1 8024 Yuba Sacramento Valley: Yuba Gold Field; just S of Yuba River; ca. 7.5 ENE of Marysville; N of Beale Airforce Base; Survey area ca. 2 mi by 1 mi, Browns Valley 26 Comment
  UCR169008  Silene gallica David Charlton 2005-5-16 8024 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  UCD98982  Silene laciniata subsp. californica R. O. Hanes 1991-5-21 17 Yuba Road 18N77 or 121. 579 Comment
  UCD135842  Silybum marianum Kathleen Keliher 1975-5-31 126 Yuba upper H-2 project area, Sierra Foothill Field Station. Comment
  CHSC43438  Sisymbrium altissimum Lowell Ahart 1977-4-16 1310 Yuba Sidewalks in Marysville, near the Rideout Hospital. 27 Comment
  CAS-BOT-BC75047  Sisymbrium altissimum Lowell Ahart 1977-4-16 s.n. Yuba Marysville. 30 Comment
  UC1126806  Sisymbrium officinale M. A. Elvin 1933-6-7 22 Yuba 3 mi se of O'Brien's Ranch 60 Comment
  UCD115753  Sisymbrium officinale Barbara Yungert 1974-4-14 32 Yuba east of road near gate, Meathook project area, Sierra Foothill Field Station. Comment
  UCD115754  Sisymbrium officinale Barbara Yungert 1974-5-23 179 Yuba gate between Road 2 and Road 3, Fl-24 project area, Sierra Foothill Field Station. Comment
  CHSC73487  Sisyrinchium bellum H. Durio, 1995-7-13 Yuba Ca 5 air mi NE of Strawberry Valley, and ca 1.5 mi E of Slate Ck. On unnamed stream flowing S into Canyon Ck, Ca 500 ft W of USFS Rd 20N35 via unnamed dirt rd. 1249 Comment
  UCD37892  Sisyrinchium bellum Beecher Crampton 1962-4-24 6318 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD138852  Sisyrinchium bellum Barbara Yungert 1974-4-16 47 Yuba north of Road 4, SC-14 project area, Sierra Foothill Field Station. Comment
  CHSC115891  Sisyrinchium elmeri L. P. Janeway 2015-7-1 11793 Yuba Northern High Sierra Nevada. Plumas National Forest; Forbestown, 120 m southwest of Challenge Cut-Off Road and 0.6 km southeast of its junction with Forbestown Road.; springy area at headwaters of a northeastern tributary of New York Creek. 817 Comment
  JEPS95897  Solanum americanum Lowell Ahart 1999-9-5 8200 Yuba on the disturbed area on the south side of Woodruff Lane; just west of Kimball Lane; about 5 miles (air) northeast of Marysville 24 Comment
  CDA5904  Solanum carolinense Margaret Bellue Aug 1939 Yuba Marysville. 0 Comment
  UCD126857  Solanum carolinense W. B. McHenry 1978-8-1 s.n. Yuba Sierra Foothill Range Field Station, near Brown Valley. Comment
  CDA36460  Solanum elaeagnifolium Kevin Roush 2011-8-8 PDR# 1616478 Yuba Marysville; Biz Johnson Dr. under 10th St. Bridge. 0 Comment
  CHSC32091  Solanum elaeagnifolium L. Ahart 1974-8-1 571 Yuba In barnyard, Glenn Clark farm, ca. 1 mi e of Honcut. 36 Comment
  SJSU4467  Solanum parishii J. B. Willis Jr. 1969-4-27 80 Yuba Timbuctoo Rd 0.25 mi off State Rte 20, 19 mi E of Marysville Comment
  UCD126996  Solanum parishii Barbara Yungert 1974-5-1 105 Yuba south of county road, along fence line, H-9 project area, Sierra Foothill Field Station. Comment
  CHSC97668  Solanum physalifolium var. nitidibaccatum Lowell Ahart 2007-5-14 13848 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  CAS-BOT-BC364917  Solidago velutina subsp. californica Lowell Ahart 1983-8-10 4275 Yuba Along the Peterson Ridge Road, about 5 miles east of Challenge 1000 Comment
  CAS-BOT-BC365807  Soliva sessilis Peter H. Raven 1954-4-17 6624 Yuba Marysville Comment
  UCD136100  Soliva sessilis Beecher Crampton 1967-5-17 7941 Yuba 5 miles east of Brown's Valley, UC Sierra Foothill Range Field Station. Comment
  CAS-BOT-BC374416  Sonchus asper Lowell Ahart 1979-6-25 s.n. Yuba One mile south of Challenge 700 Comment
  CHSC107169  Sonchus asper subsp. asper L. P. Janeway 2011-7-5 10491 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants occasional, especially in disturbed edges of the meadow. 750 Comment
  UCD136211  Sonchus oleraceus Barbara Yungert 1974-5-6 118 Yuba south of station headquarters, Sierra Foothill Field Station. Comment
  HSC10992  Sorghum halepense T. F. Newman 1965-9-9 6569 Yuba Helder Ranch, 11 mi. N of Marysville on Hwy. 70 Comment
  UCR201739  Sorghum halepense George K. Helmkamp, E. A. Helmkamp 2008-10-6 14212 Yuba Sacramento Valley, Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  CHSC97640  Spergularia bocconi Lowell Ahart 2007-5-14 13865 Yuba Along the dirt road, near the power tower, power tower is about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  CHSC45562  Spergularia rubra Lowell Ahart 1980-8-12 2565 Yuba On a gravel bar, a little below where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  UCD99284  Spergularia rubra G. K. Helmkamp 2006-10-10 11523 Yuba Northern Sierra Nevada Mountains Foothills; along Hwy CA-49 just north of the Nevada County line at the Middle Yuba River bridge. 451 Comment
  JEPS98323  Spiranthes porrifolia Lowell Ahart 2000-6-11 8473 Yuba 8 air miles S of Smartville (E side of a small wash, W of Smartville Rd, about 1/8 mi SW of int of Waldo Rd and Smartville Rd) 99 Comment
  CHSC97868  Sporobolus indicus Terry Steven; E. Storm 2006-5-20 PDR 1408219 Yuba Terry Stevens property, 6277 Marysville Rd., Browns Valley. New shoots in irrigated pasture. 125 Comment
  UCD126029  Stachys rigida Barbara Yungert 1974-5-16 164 Yuba Along road near Dry Creek, below Porter fence line, P-2 project area, Sierra Foothill Field Station. Comment
  UCR206959  Stellaria media George K. Helmkamp, E. A. Helmkamp 2009-5-28 14829 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 Comment
  JEPS94445  Stephanomeria elata Lowell Ahart 1997-8-30 7877 Yuba about 3 air mi e of Challenge (on the w side of the dirt road, in a clear cut, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  CAS-BOT-BC375215  Stephanomeria elata John Thomas Howell 1951-8-21 28285 Yuba Near Camptonville 762 Comment
  CHSC83038  Stephanomeria virgata subsp. pleurocarpa Lowell Ahart 2002-10-10 9980 Yuba On the east side of the dirt road, east of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20. 166 Comment
  HSC97022  Stephanomeria virgata subsp. pleurocarpa L. Ahart 2002-10-10 9980 Yuba E of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Rd., about 2 mi. N of Bridgeport, about 18 mi. N of Hwy. 20 166 Comment
  CHSC113668  Stipa lemmonii var. lemmonii L. P. Janeway 2014-5-12 11246 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  SEINET8081037  Stipa pulchra C. Aarstad 1979-4-18 s.n. Yuba At junction of Rte 20 and North Fork of Yuba River in Browns Valley. 183 Comment
  CHSC90355  Streptanthus tortuosus var. suffrutescens Lowell Ahart 2005-2-28 11566 A Yuba West of a poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 403 Comment