Search Results — 2000 specimen records retrieved (1525 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UCR197051  Achillea millefolium George K. Helmkamp, E. A. Helmkamp 2008-5-20 13475 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  UCD128377  Achillea millefolium Barbara Yungert 1974-4-25 84 Yuba south of road near gate between SC-13 and SC-14 project areas, Sierra Foothill Field Station. Comment
  CAS-BOT-BC218689  Achnatherum lemmonii Lowell Ahart 1979-6-25 s.n. Yuba 2 miles E of Challenge 700 Comment
  UCD32531  Achnatherum lemmonii Beecher Crampton 1954-5-10 1847 Yuba Yuba County, 6 miles south of Camptonville, along highway 49, north slope near the middle of the Yuba River. Comment
  UCD50644  Achnatherum lemmonii Beecher Crampton 1954-5-10 1847 Yuba Along Hwy. 49, north slope of the Middle Yuba River, 6 miles south of Camptonville, Yuba County. Comment
  UCD50717  Achnatherum lemmonii Beecher Crampton 1957-6-5 4142 Yuba 1 mile east of Stanfield Hill. Comment
  CAS-BOT-BC218044  Achnatherum stillmanii Lowell Ahart 1979-6-25 s.n. Yuba 1 mile S of Challenge 700 Comment
  CHSC41175  Achnatherum stillmanii L. P. Janeway; Gary Benson 1984-8-6 Yuba Plumas National Forest. Between Strawberry Valley and Slate Creek. 1173 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
  CHSC14006  Achyrachaena mollis J. A. Roberts 1973-4-12 13 Yuba 15 mi n of Hwy 20, 10 mi e of Marysville. 457 Comment
  SEINET7072723  Achyrachaena mollis 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
  UCD128415  Achyrachaena mollis E. J. Kinbacher 1953-4-28 9 Yuba State Highway 20, 8 miles northeast of Marysville. 24 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
  UCD104017  Acmispon argophyllus var. fremontii Barbara Yungert 1974-5-8 136 Yuba North of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  CHSC108204  Acmispon brachycarpus 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
  UCD104099  Acmispon brachycarpus Barbara Yungert 1974-4-4 4 Yuba Along four wheel drive road, north of Yuba River, Sierra Foothill Field Station. Comment
  UCD38321  Acmispon grandiflorus Beecher Crampton 1954-5-10 1844 Yuba Hwy 49, 7 miles south of Camptonville. Comment
  SBBG3418  Acmispon grandiflorus var. grandiflorus H. and M. Dearing 1939-5-7 Yuba Brownsville 762 Comment
  CHSC10636  Acmispon grandiflorus var. macranthus Lowell Ahart 1968-3-3 Yuba Near Bullard's Bar. 914 Comment
  CHSC112368  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. 850 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
  SEINET11261963  Adenocaulon bicolor Robert L. Johnson, Mikel R. Stevens 2015-7-13 3966 Yuba Sierra Nevadas. 2.9 rd mi E of junction with Challenge Cuttoff Rd on La Porte Rd, Sharon Valley. At junction of La Porte Rd and Milk Ranch Rd (dirt rd).; 0 973 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-BC206889  Aesculus californica Alice Eastwood 1921-5-22 10542 Yuba Los Vergils Comment
  JEPS75459  Aesculus californica P. F. Yorks 1975-6-14 451 Yuba ca 1 mi n Camptonville (Highway 49, along highway before it runs along the Yuba River) 914 Comment
  UCR194909  Aesculus californica George K. Helmkamp, E. A. Helmkamp 2007-5-26 12132 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville 802 Comment
  CAS-BOT-BC295538  Agnorhiza bolanderi Alice Eastwood 1930-4-12 s.n. Yuba Near top of Texas Hill Comment
  CAS-BOT-BC295537  Agnorhiza bolanderi G. L. Stebbins 1966-5-22 6413 Yuba 2 miles north of Oregon House, on road to Forbestown 396 Comment
  CHSC44843  Agoseris grandiflora Lowell Ahart 1979-6-25 1944 Yuba About 1 air mile south of Challenge. 640 Comment
  UCD33594  Agoseris grandiflora Beecher Crampton 1970-6-15 8618 Yuba UC Sierra Foothill Range Field Station, ca. 6 miles east of Brown's Valley. Comment
  CAS-BOT-BC15448  Agoseris grandiflora var. grandiflora Lowell Ahart 1979-6-25 s.n. Yuba 1 mile south of Challenge 700 Comment
  CAS-BOT-BC15346  Agoseris heterophylla Alice Eastwood 1921-5-22 10511 Yuba Los Verjeles 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
  CHSC97118  Agrimonia gryposepala Lowell Ahart 2007-8-7 14424 Yuba West side of an 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
  CAS-BOT-BC451165  Agrimonia gryposepala Lowell Ahart 1977-7-31 s.n. Yuba Aount 1 mile south of Challenge 700 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
  POM266621  Agrostis avenacea J. C. Roos 1939-7-3 1518 Yuba Marysville. Comment
  CAS-BOT-BC127353  Agrostis exarata Lowell Ahart 1979-6-25 s.n. Yuba 1 mile south of Challenge. Comment
  CHSC44540  Agrostis exarata Lowell Ahart 1979-6-25 1939 Yuba About 1 mile south of Challenge. 640 Comment
  JEPS121794  Agrostis gigantea L. P. Janeway, James Nixon, Eduardo Gonzales 2014-7-2 11429 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow opening just northeast of Little Oregon Creek and 0.2 km east of Oregon Hill Road; 7.3 air-km southeast of Challenge. Comment
  CAS-BOT-BC139343  Agrostis idahoensis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54088 Yuba Sierra Nevada. 3.6 miles northest of Strawberry Valley on La Porte - Quincy road. 1280 Comment
  CAS-BOT-BC138782  Agrostis scabra Lowell Ahart 1980-8-12 2575 Yuba Sierra Nevada. Along Slate Creek. 1250 Comment
  CHSC116336  Agrostis scabra Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-19 20679 Yuba Spillway area, at the west side and near the top of Lake Francis Dam, below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  JEPS124262  Agrostis scabra Lowell Ahart 2015-11-19 20679 Yuba Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CDA28150  Agrostis stolonifera L. Ahart 2003-7-6 10366 Yuba East of the power line, about 50 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 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
  UCD74335  Agrostis stolonifera G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12841 Yuba Northern Sierra Nevada Mountains: along Hwy. CA-49, 0.5 mile south of Camptonville. 817 Comment
  CHSC97441  Aira caryophyllea Lowell Ahart 2007-5-12 13820 Yuba Dry red bare soil, 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
  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
  UCD55725  Aira caryophyllea Beecher Crampton 1965-5-11 7317 A Yuba 2.5 miles southwest of Brown's Valley. 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
  UCR118917  Aira caryophyllea Beecher Crampton 1957-6-5 4154 a Yuba Central Sierra Nevada foothills., 1.3 Miles east of Oregon House Store 457 Comment
  SEINET5336000  Aira caryophyllea D. Selleck 1979-4-27 s.n. Yuba Sierra Field Station-UC Davis 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
  SEINET3449086  Alisma plantago-aquatica Unknown 2003-7-17 10416 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
  CAS-BOT-BC445377  Alisma plantago-aquatica W. V. Middlekauff 1955-7-4 s.n. Yuba 3 miles n.w. of Rio Oso Post Office Comment
  UCD22594  Allium L. K. Mann 1957-4-19 s.n. Yuba At east edge of top of dam across north fork of Yuba River, between Dobbins and North San Juan. Comment
  CHSC22947  Allium amplectens Robert A. Schlising; G. Keator 1963-4-8 2498 Yuba Along Hwy 20, area of Browns Valley, 29.4 miles west of Nevada City. 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
  CAS-BOT-BC462249  Allium amplectens Alice Eastwood 1930-4-13 17934 Yuba near Marysville Comment
  RSA21178  Allium amplectens Carl B. Wolf 1937-6-11 8777 Yuba Sacramento Valley, 5 miles S of Marysville. 18 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
  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
  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
  SBBG867  Allium sanbornii H. and M. Dearing 1939-5-6 3289 Yuba N of Challenge Comment
  CHSC107278  Allium sanbornii var. sanbornii L. P. Janeway 2011-8-10 10643 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
  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
  CHSC43301  Alnus rhombifolia Lowell Ahart 1976-1-19 997 Yuba Along the edge of South Honcut Creek, near bridge, near Ramirez Road. 33 Comment
  UC1135121  Alnus rhombifolia M. A. Elvin 1933-7-14 51 Yuba Greenville Smartsville Quadrangle Comment
  UCD55947  Alopecurus saccatus Beecher Crampton 1965-5-11 7324 Yuba 2.5 miles southwest of Brown's Valley. Comment
  JEPS102606  Amaranthus californicus Lowell Ahart 2001-11-2 9396 Yuba Camp Far West Reservoir, about 1/4 mile NE of the dam, about 9 miles (air) SE of Wheatland. 83 Comment
  UCD97084  Amaranthus cruentus Ed Leseman 1921-9-1 s.n. Yuba Wheatland. 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
  CDA10055  Ambrosia psilostachya L. Ahart 2002-10-1 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. 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
  JEPS98996  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
  CAS-BOT-BC55576  Ambrosia psilostachya John Thomas Howell 1951-8-21 28288 Yuba Near Comptonville 762 Comment
  UC1127768  Amelanchier utahensis G. Burks 1933-9-26 40 Yuba 1 mi s Camptonville; Tahoe National Forest, Smartsville Quad. 822 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
  CHSC68470  Amsinckia intermedia Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7725 Yuba On the bank of the Browns Valley Water Ditch, 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. 198 Comment
  SEINET12479904  Amsinckia intermedia A. Tiehm 1975-1 648 Yuba U.C. Sierra Foothill Field station. 274 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
  UCD119711  Amsinckia intermedia Barbara Yungert 1974-4-14 33 Yuba Meathook project area, Sierra Foothill Field Station. Comment
  CHSC96463  Amsinckia menziesii Lowell 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 1/2 miles (air) northeast of Loma Rica. 292 Comment
  UCD81496  Amsinckia menziesii Christopher Michael Bronny 2009-4-1 8 Yuba Oat Hills' area of Sierra Nevada foothills. 194 Comment
  JEPS113094  Amsinckia menziesii var. menziesii Lowell 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 1/2 miles (air) northeast of Loma Rica 292 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
  SEINET5733526 Image available Anagallis arvensis Gerald Pullman 1974-1 26 Yuba 3 mi. 20 degrees E of N from Station Headquarters, Univ. of CA Sierra Foothill Range Field Station.; UC Foothill Field Station Comment
  RSA220010  Anagallis minima J. T. Howell, G. H. True 1967-6-13 3559 Yuba Camp Far West reservoir on Bear River E. of Wheatland. In damp soil at edge of reservoir. 61 Comment
  HSC5271  Andropogon glomeratus C. B. Wolf 1927-11-5 1436 Yuba Road to Brown's Valley, 8 mi. from Marysville Comment
  CDA31475  Andropogon virginicus H. Crane 1931-4-3 Yuba 0 Comment
  UCD56098  Andropogon virginicus R. N. Raynor 1938-4-25 s.n. Yuba near Marysville. Comment
  CAS-BOT-BC137784  Andropogon virginicus var. virginicus William Anderson 1966-11-25 s.n. Yuba Sierra Nevada. Loma Rica. 121 Comment
  CHSC116300  Andropogon virginicus var. virginicus Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20643 Yuba On the sides of the spillway area, at the west side and near the top of Lake Francis Dam, about 1 1/2 miles south of Dobbins. 512 Comment
  JEPS124317  Andropogon virginicus var. virginicus Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20643 Yuba Above the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CHSC10805  Anemone oregana Lowell Ahart 1970-5-7 Yuba Along Deadwood Creek, near Challenge. 914 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
  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
  CHSC84145  Anisocarpus madioides Lowell Ahart 2003-7-2 10343 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
  JEPS104293  Anisocarpus madioides Lowell Ahart 2003-7-2 10343 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
  CDA19127  Anredera cordifolia L. Dillard 2001-6-12 PDR 1197437 Yuba Sacramento Valley; Canal St., Olivehurst. 0 Comment
  CHSC108205  Anthemis cotula Lowell 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 miles (by air) northeast of Marysville. 66 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
  CHSC78356  Anthoxanthum odoratum Lowell Ahart 2000-6-19 8491 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. 731 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
  CHSC96490  Anthriscus caucalis Lowell Ahart 2007-4-17 13679 Yuba East 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
  JEPS113288  Anthriscus caucalis Lowell Ahart 2007-4-17 13679 Yuba East 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
  JEPS118314  Anthriscus caucalis Lowell Ahart 2011-6-7 17369 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
  RSA430680  Antirrhinum vexillocalyculatum subsp. intermedium David M. Thompson 1983-9-11 380 Yuba Near town of Log Cabin. Hwy. 49, 0.4 miles N of the middle of the bridge over Middle Yuba River (just N of Nevada Co. line). 480 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
  RSA795330  Apocynum androsaemifolium L. Ahart 2010-7-27 16922 Yuba Disturbed area of a log landing, about 100 yards north of Scales Road, about 1/8 miles east of La Porte Quincy Road, about 3 air miles east of Sly Creek Reservoir Dam. 1220 Comment
  UC1278004  Aquilegia formosa B. Crampton 1957-6-5 4160 Yuba 3 mi e Oregon House Store Comment
  CHSC46476  Aralia californica Lowell Ahart 1980-7-25 2483 Yuba Edges of a small stream that flows into Slate Creek, near the debris dam, 1/4 mile north-east of the two steel bridges across Slate Creek, about 6 miles north-east of North Star along La Porte Road. 1097 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
  UCD52283  Arctostaphylos mewukka B. F. Smith 1968-9-20 89 Yuba Gochette Ranch; 3 miles east of Challenge. 883 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
  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
  CAS-BOT-BC48245  Arctostaphylos viscida subsp. viscida Junea Kelley 1920-4-24 s.n. Yuba Los Vergils Comment
  UC876567  Arctostaphylos viscida subsp. viscida Alice Eastwood 1918-4-7 6798 Yuba Camptonville Comment
  CAS-BOT-BC137559  Aristida oligantha Roxana S. Ferris 1927-11-5 6942 Yuba 7 miles from Brown Valley on Marysville Road. Comment
  CHSC69160  Aristida oligantha Lowell Ahart 1997-8-7 7808 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
  JEPS113808  Aristida oligantha Lowell Ahart 2007-6-22 14217 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
  SEINET12765112  Aristida oligantha Lowell Ahart 1997-8-7 7808 Yuba On the north side of New York Flat Road, about 1 mile north of Brownsville.; 0 732 Comment
  UCR25611  Aristida oligantha John C. Roos 1939-7-3 1517 Yuba Marysville Comment
  RSA1885  Aristolochia californica C. B. Wolf 1930-10-13 1001 Yuba On Browns Valley - Smartsville Rd. 152 Comment
  UCD81502  Aristolochia californica Christopher Michael Bronny 2009-4-1 14 Yuba Oat Hills' area of Sierra Nevada foothills. 213 Comment
  CAS-BOT-BC400415  Aristolochia californica Carl B. Wolf 1930-10-13 1741 Yuba Creek flowing into Yuba River, on Brown's Valley to Smartsville Road 152 Comment
  CDA24668  Armoracia rusticana A. Worledge 1944-1 Yuba 0 Comment
  CDA24669  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
  JEPS104248  Arrhenatherum elatius Lowell Ahart 2003-7-6 10367 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
  CHSC113199  Artemisia douglasiana Lowell Ahart 2013-11-30 19314 Yuba On the sides of a wash, about 20 yards north of Dry Creek, just above the high water line of Collins Lake, about 350 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 361 Comment
  JEPS115019  Artemisia douglasiana Lowell Ahart 2007-11-1 14543 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
  RSA21292  Asclepias cordifolia C. B. Wolf 1937-5-13 8637 Yuba Sierra Nevada Foothills, 2.7 mi below Stanfield Hill on road to Browns 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
  UCD15416  Asclepias cordifolia Collector Unknown 1974-5-15 215 Yuba Yuba Co., 0.9 mi S of Camptonville on Hwy. 49; 762 Comment
  CHSC43319  Asclepias speciosa Lowell Ahart 1979-6-25 1934 Yuba Near the edge of LaPorte Road, about 2 miles south-west of Brownsville. 365 Comment
  CAS-BOT-BC65897  Aspidotis densa Lowell Ahart 1980-8-12 2529 Yuba About 2 miles south-east of Woodleaf 800 Comment
  CHSC46024  Aspidotis densa Lowell Ahart 1974-7-29 686 Yuba About 50 yards south of Forbestown Road, near Costa Creek, about 2 1/2 miles east of Forbestown. 914 Comment
  CAS-BOT-BC65898  Aspidotis densa W. R. Dudley s.n. Yuba Near South Yuba Comment
  UCD104829  Astragalus gambelianus Barbara Yungert 1974-4-22 75 Yuba Sierra Foothill Field Station. West of four wheel drive road, Jack-ass Joe Area, F-2 project area. Comment
  RSA726338  Athyrium filix-femina subsp. cyclosorum L. Ahart 2007-8-7 14410 Yuba Hampshire Creek Meadow, about 80 yards east of the dirt road, about 1 mile east of Clipper Mills. 1021 Comment
  CHSC107580  Avena barbata Lowell Ahart 2011-6-7 17421 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
  UCD56176  Avena barbata Beecher Crampton 1962-4-17 6170 Yuba Ca. 2 miles south of Marysville. Island Road and State Hwy. 24. 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
  UCD56458  Avena fatua Beecher Crampton 1962-4-24 6252 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. 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
  SEINET5336146  Avena fatua C. Aarstad 1979-4-28 s.n. Yuba at junct. of Rt. 20 and N fork of Yuba in Browns Valley 183 Comment
  CDA18795  Azolla filiculoides Deforest, Storm 2000-3-27 PDR 1199217 Yuba Loma Rica Rd., Marysville. 0 Comment
  JEPS122456  Baccharis pilularis subsp. consanguinea L. P. Janeway 2014-11-6 11580 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
  UCD147077  Baccharis salicifolia subsp. salicifolia Chuck Hughes 2013-4-1 362 Yuba Eastern margin of Camp Far West Reservoir. 96 Comment
  UCD123527  Bacopa rotundifolia C. F. Dunshee 1925-1 s.n. Yuba Sacramento Valley. Comment
  UCD18434  Barbarea verna Joe DiTomaso 2001-4-12 s.n. Yuba on Peoria Rd. near junction with Sicard Flat Rd., on road to UC Sierra Foothill Research and Extension Center, shaded area along roadside of oak woodland. Comment
  CAS-BOT-BC75960  Berberis pumila L. S. Rose 1931-4-14 s.n. Yuba Brownsville. 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
  JEPS115047  Bidens frondosa Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14497 Yuba On the east side of a small pond, on the west side of the dirt road, Hampshire Creek Meadow, about 2 yards west of the dirt road, about 1 mile (air) east of Clipper Mills 1015 Comment
  CDA20322  Bothriochloa pertusa E. Storm, D. Flavell 2005-3-7 PDR 1295306 Yuba Browns Valley, UC Field Station. 0 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
  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
  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
  UC1153943  Brachypodium distachyon Beecher Crampton 1957-6-5 4121 Yuba 10 mi e of Marysville (along State Highway 20); State Highway 20 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
  UCD57001  Brachypodium distachyon Beecher Crampton 1957-6-5 4164 Yuba Opposite old Stewart and Bros. and Wells Fargo Store. Site of old Timtuctoo. Comment
  UCD57012  Brachypodium distachyon Beecher Crampton 1957-6-5 4121 Yuba 10 miles E of Marysville. Along State Hwy. 20. Comment
  CAS-BOT-BC186700  Brassicaceae Lowell Ahart 1974-5-18 s.n. Yuba About 5 miles west of Loma Rica 300 Comment
  CAS-BOT-BC127874  Brickellia greenei Lowell Ahart 1980-8-12 2534 Yuba On a gravel bar along Slate Creek 1250 Comment
  CAS-BOT-BC145431  Briza maxima Lowell Ahart 2007-5-14 13863 Yuba 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
  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
  RSA727116  Briza maxima L. Ahart 2007-5-14 13863 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  SEINET3828409  Briza maxima George K. Helmcamp, E. A. Helmkamp 2011-1 17213 Yuba Eastern edge of Sacramento Valley: Camp Far West Road 1.3 miles southeast of it's junction with Spencerville road. 5.25 mi. NE (52 degrees) of Wheatland (camp far west 7.5') 62 Comment
  SEINET3837936 Image available Briza maxima George K. Helmkamp, E. A. Helmkamp 2011-5-6 17210 Yuba East edge of Sacramento Valley: junction of Camp Far West Road and Spenceville Road, 5.4 mi NE of Wheatland (Camp Far West) 56 Comment
  UCR232224  Briza maxima George K. Helmkamp, E. A. Helmkamp 2011-5-6 17210 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
  SEINET4344868  Briza minor A. Tiehm 1975-1 644 Yuba U.C. Sierra Foothill Field station 274 Comment
  UCD57407  Briza minor Beecher Crampton 1957-6-5 4155 Yuba 1.3 miles east of Oregon House Store. Comment
  UCR231313  Briza minor George K. Helmkamp, E. A. Helmkamp 2011-5-6 17187 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
  UCR258214  Briza minor George K. Helmkamp, Amy Barnes 2013-3-28 20264 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 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
  SEINET7042651  Briza minor 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
  UCD139147  Brodiaea R. E. Preston 1996-5-22 935 Yuba Beale Air Force Base. 33 Comment
  CAS-BOT-BC228603  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
  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
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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
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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
  UCD77171  Brodiaea elegans subsp. elegans Robert E. Preston 2004-6-12 2257 Yuba 1.6 mi SW of Camptonville, along Marysville Rd, 0.2 mi W of its jct with Hwy 49 762 Comment
  CAS-BOT-BC484283  Brodiaea elegans subsp. elegans Martin Georges 1953-7-19 s.n. Yuba Lake Vera, North Fork, Yuba River 96 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
  CHSC113648  Brodiaea minor L. P. Janeway 2014-6-24 11414 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 480 m northeast of Marysville Road. 756 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
  JEPS13878  Brodiaea minor Rimo Bacigalupi with L. R. Heckard, Ruth Sanderson and Geo. Bacigalupi 1952-6-20 3759 Yuba edges of desiccated roadside pool just n Washington Mill (along road from Brownsville to Oregon House, 1.5 mi due s of Brownsville) 609 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
  CHSC112957  Brodiaea sierrae L. P. Janeway 2014-6-26 11422 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. 852 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
  SEINET7067128  Brodiaea stellaris A. G. Vestal 1947-4-29 s.n. Yuba About 5 miles west of Smartville on the Smartville Road. Coordinate datum: NAD27. UTM Zone 10, 640771mE, 4339031mN. Comment
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Jul 17 2018
  CAS-BOT-BC144293  Bromus arizonicus H. N. Bolander 1860-1-1 1546 Yuba Marsyville. Comment
  RSA21290  Bromus carinatus C. B. Wolf 1937-5-13 8635 Yuba Sierra Nevada Foothills, 2.7 miles below Stanfield Hill on road to Browns Valley 183 Comment
  UCD57974  Bromus carinatus Beecher Crampton 1957-6-5 4152 Yuba Opposite Oregon House Store. 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
  UCD58309  Bromus carinatus Beecher Crampton 1962-4-24 6298 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  CHSC37192  Bromus carinatus var. marginatus L. Ahart 1982-7-4 3661 Yuba Ca. 1/2 mi e of Brownsville, along LaPorte Rd. 700 Comment
  CAS-BOT-BC148846  Bromus carinatus var. marginatus Lowell Ahart 1982-7-4 3661 Yuba Sierra Nevada. About 0.5 mile east of Brownsville, along La Porte Road. 700 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
  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
  UCD59506  Bromus diandrus Beecher Crampton 1957-6-5 4150 Yuba 1/2 mile W of Oregon House Post Office. Comment
  CAS-BOT-BC155483  Bromus hordeaceus Gordon H. True 1968-5-6 4230 Yuba Near Gales Orchard ca. 6 miles east of Camptonville. 1249 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
  UCD58825  Bromus hordeaceus Beecher Crampton 1962-4-24 6244 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  SEINET4391209  Bromus hordeaceus A. Tiehm 1975-4-25 633 B Yuba U.C. Sierra Foothill Field Station 198 Comment
  JEPS124414  Bromus japonicus Lowell Ahart, Susan Kephart, Jim Kephart 2015-6-4 20198 Yuba About 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. Comment
  UCD58967  Bromus madritensis Beecher Crampton 1965-6-17 7372 Yuba Ca. 3/4 mile north of Stanfield Hill. Willow Glen Creek. 396 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
  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
  UCR152062  Bromus sterilis Beecher Crampton 1954-5-10 1846 Yuba Central Sierra Nevada foothills, 6 miles south of Camptonville, along Hwy. 49 457 Comment
  UCD57065  Buchloe dactyloides R. E. Preston 1996-4-11 927 Yuba Beale Air Force Base. Adjacent to parking lot N of Air Combat Command. 33 Comment
  CHSC107560  Calandrinia ciliata Lowell Ahart 2011-6-7 17409 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
  JEPS118295  Calandrinia ciliata Lowell Ahart 2011-6-7 17409 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
  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
  CHSC97501  Callitriche marginata Lowell Ahart 2007-5-12 13784 Yuba Bottom of a scraped area, east side 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
  CHSC3656  Calochortus albus Robert D. Briggs 1966-4-6 R- 113 Yuba One mile east of Smartsville, on hwy. #20. Comment
  CHSC59834  Calochortus albus Richard Nichols 1980-4-26 20 Yuba Along Peoria Rd., ca. 0.5 mi n of Jct with Sicard Flat Rd., ca. 2 mi ne of Hwy 20, and ca. 5 mi nw of Smartville. 243 Comment
  CAS-BOT-BC487491  Calochortus albus Barbara T. Keller 1975-6-10 1516 Yuba Willow Glen Rd. from Stanfield Hill to Brownsville, about 11.5 miles north of junction with Marysville Road Comment
  UCD139465  Calochortus albus Barbara Yungert 1974-4-12 20 Yuba along north bank of four wheel drive road. North of Yuba River, Sierra Foothill Field Station. Comment
  CAS-BOT-BC487812  Calochortus coeruleus L. S. Smith 1931-5-1 s.n. Yuba Near Camptonville, Rebel Ridge 548 Comment
  CAS-BOT-BC483434  Calochortus luteus Alice Eastwood 1921-5-22 s.n. Yuba Los Vergils Comment
  CHSC100720  Calochortus monophyllus L. P. Janeway 2008-5-11 9357 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. At top of dry northwest-sloping swale. 1012 Comment
  CHSC32088  Calochortus monophyllus L. Ahart 1973-5-6 212 Yuba Near Challenge. 762 Comment
  CAS-BOT-BC493079  Calochortus monophyllus Barbara T. Keller 1975-6-10 1504 Yuba Challange experimental Forest along La Porte Road near Challange. 762 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
  SEINET12044652  Calochortus monophyllus L. S. Rose 1933-1 33196 Yuba Brownsville 640 Comment
  UC477575  Calochortus nudus L. S. Smith May 1931 Yuba Camptonville Dist. Tahoe National Forest 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
  CHSC44853  Calycadenia multiglandulosa Lowell Ahart 1977-7-31 1503 Yuba Near the Brownsville airstrip, about 1 1/2 air miles southwest of Brownsville. 548 Comment
  CHSC78233  Calycadenia multiglandulosa Lowell Ahart 2000-7-13 8581 Yuba 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
  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
  POM186826  Calycadenia multiglandulosa subsp. bicolor D. D. Keck 1932-7-1 1610 Yuba 2 miles E of Dobbins 762 Comment
  RSA6263  Calycadenia multiglandulosa subsp. bicolor D. D. Keck 1932-7-1 1610 Yuba 2 miles E of Dobbins; to Stanfield Hill Comment
  UC894252  Calycadenia pauciflora Lewis S. Rose 1940-5-28 40399 Yuba Oregon House 457 Comment
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Feb 27 2007
  CAS-BOT-BC90912  Calycanthus occidentalis Lowell Ahart 1980-6-19 2413 Yuba Sierra Nevada. 4.5 miles east of Challenge. 900 Comment
  UC1126247  Calycanthus occidentalis M. A. Elvin 1933-7-7 44 Yuba 2 mi e Oregon House; Smartsville Quad. 487 Comment
  UCD82844  Calycanthus occidentalis Robin McMaster 1973-6-24 496 Yuba Oregon Creek Campground. 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
  JEPS104133  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, ca 400 yd sw of the Day Camp, Sly Creek Reservoir. 1072 Comment
  OBI48880  Calyptridium monospermum Lewis S. Rose 1939-6-6 39230 Yuba 2 mi NE of Clipper Mills 1173 Comment
  CHSC63135  Calystegia occidentalis subsp. occidentalis Lowell Ahart 1994-6-27 7400 Yuba On dry red rocky soil, along the north side of a small stream, on the east bank of the logging road, east of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 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
  CHSC116181  Camassia howellii Lowell Ahart 2015-6-16 20244 Yuba In a small meadow, near 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
  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
  SEINET10462863  Campanula prenanthoides Clifton 1971-7-4 CLIFTON 324 Yuba CHALLENGE DISTURBED AREA. T19N R7E SEC. 17 853 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
  JEPS107347  Cardamine oligosperma Lowell Ahart 2005-3-11 11600 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
  RSA715480  Cardamine oligosperma L. Ahart 2005-3-11 11600 Yuba West of a large rock outcrop, about 1/2 mile W of Marysville Road, about 1/2 mile N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile N of Loma Rica Road, about 5 miles (air) NE of Loma Rica. 386 Comment
  UCD80177  Cardamine oligosperma CNPS SN Foothill Team 2005-3-15 SNFN 0015 Yuba CDFG Spenceville Wildlife Area. The plot is accessed from Spenceville Road, approximately 1 mile east of intersection with Waldo Rd. and approximately 0.1 mile east of intersection with Jones Rd. 100 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
  CDA3661  Cardaria chalepensis T. C. Fuller 1961-5-31 6269 Yuba In Bear River drainage at El Centro Road bridge, 0.5 mile north of Rio Oso. 0 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
  UCD85583  Carduus pycnocephalus Kathleen Keliher 1975-5-31 125 Yuba Sierra Foothill Field Station, H-2 project area. Comment
  CHSC105967  Carex amplifolia Lowell Ahart 2010-9-9 17142 Yuba In a small meadow, about 50 yards east of the dirt road (road now destroyed), east part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills. 1015 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
  JEPS113714  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
  UC1982296  Carex amplifolia Virginia Moran 2008-9-17 Yuba Collected from Celestial Pond located approximately tem miles (16Km) north of Nevada City in Yuba County. Water from the pond drains in Oregon Creek which drains into the Middle Yuba River. Comment
  UCR118909  Carex aquatilis Beecher Crampton 1962-4-24 6289 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
  CHSC112130  Carex barbarae L. P. Janeway; James Nixon, Eduardo Gonzales 2014-7-2 11431 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow opening just northeast of Little Oregon Creek and 0.2 km east of Oregon Hill Road; 7.3 air-km southeast of Challenge. 625 Comment
  CHSC110879  Carex cyrtostachya L. P. Janeway; Lowell Ahart, Linnea Hanson 2007-7-13 9116 Yuba Northern High Sierra Nevada. Plumas National Forest; Hampshire Creek meadow, 1.5 air km east of Clipper Mills and 1.8 air km northwest of North Yuba River. 1026 Comment
  CHSC112091  Carex cyrtostachya L. P. Janeway 2014-8-26 11571 Yuba Northern High Sierra Nevada. Plumas National Forest; about 50 m east of Oregon Hill Road, about 1 km south of Little Oregon Creek; 8 air-km southeast of Challenge. 668 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
  HSC103662  Carex cyrtostachya L. P. Janeway, L. Ahart, Linnea Hanson 2007-7-13 9116 Yuba Northern High Sierra Nevada. Plumas National Forest; Hampshire Creek meadow, 1.5 air km. E of Clipper Mills and 1.8 air km. NW of North Yuba River 1026 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
  JEPS104627  Carex echinata subsp. echinata Lowell Ahart 2000-6-23 8508 Yuba Bog in a small meadow, about 200 yards east of the meadow along La Porte Road, about 50 yards north of Scales Road, about 3 miles NE 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
  CHSC84215  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
  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
  SEINET7485197 Image available Carex feta Peter F. Zika, Peter F. Zika 2010-1 24978 Yuba W side of Challenge cut-off, 2.5 air km NE of Brownsville, northern Sierra Nevada Highland (n SNH) Comment
  CDA17816  Carex feta G. D. Barbe, J. T. Howell (54093 at CAS) & T. C. Fuller 1981-6-22 3052 Yuba 3.6 miles NE of Strawberry Valley on La Porte-Quincy Road, at the county line with Plumas Co. 1280 Comment
  SEINET4291980 Image available Carex feta A. L. Hipp, Clifton, G 1999-1 ah 385 Yuba Marysville Road Comment
  SEINET7558578 Image available Carex feta Andrew L. Hipp, Glen C. Clifton 1999-5-29 385 Yuba Marysville Road. Comment
  CHSC63286  Carex fracta Lowell Ahart 1994-6-5 7307 Yuba Small open meadow in forest, on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 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
  JEPS113336  Carex gracilior L. P. Janeway 2006-5-24 8631 Yuba Northern Sierra Nevada Foothills. South Side of Frenchtown Road 1.2 km northeast of Marysville Road and Oregon House. 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
  SEINET4292203 Image available Carex gracilior Unknown 2006-1 8631 Yuba Northern Sierra Nevada Foothills. South side of Frenchtown road 1.2 road km northeast of Marysville Road and Oregon House. Oregon House 7.5' Quad. Comment
  CAS-BOT-BC146668  Carex hirtissima Peter H. Raven 1953-5-9 5475 Yuba 1 mile from Brownsville on road to Challenge Comment
  CAS-BOT-BC94047  Carex hirtissima Peter F. Zika 2010-6-22 24979 Yuba W side of Challenge Cut-off, 2.5 air km NE of Brownsville, northern Sierra Nevada Highlands (n SNH) 755 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
  CHSC63193  Carex hirtissima Lowell Ahart 1994-6-27 7386 Yuba Along the south side of a small stream, east of the logging road, east of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  JEPS104243  Carex hirtissima Lowell Ahart 2003-7-6 10359 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
  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
  JEPS87678  Carex hirtissima Lowell Ahart 1994-6-5 7304 Yuba ca. 3 (air) mi e Forbestown (s side of creek, e side of Forbestown Rd.); Costa Creek 853 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
  SEINET3450853  Carex hirtissima Unknown 2003-7-6 10359 Yuba Dobbins, Dobbins, about 5 air miles north, east of the power line, about 60 yards northwest of Fountain Hill Road 830 Comment
  SEINET7485288 Image available Carex hirtissima Peter F. Zika 2010-1 24979 Yuba W side of Challenge Cut-off, 2.5 air km NE of Brownsville, northern Sierra Nevada Highlands 755 Comment
  CAS-BOT-BC31686  Carex mariposana Lewis S. Rose 1940-5-28 40380 Yuba Browns Valley 60 Comment
  CAS-BOT-BC32183  Carex multicaulis Lowell Ahart 1969-5-18 s.n. Yuba Slate Creek, 10 miles S of La Porte. 914 Comment
  CHSC96876  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
  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
  UCD33113  Carex stipata var. stipata Beecher Crampton 1966-6-14 7758 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  CAS-BOT-BC117350  Carex stipata var. stipata Beecher Crampton 1966-6-14 7758 Yuba 1 mi E of Brownsville, La Porte Road. 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
  CDA43057  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. 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
  HSC103678  Carex xerophila L. P. Janeway 2006-5-24 8616 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way, 1.3 road km. SE of Robinson Mill Road; 1.3 air km. SE of Robinson Mills & Forbestown Road. 771 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
  UCD168843  Carex xerophila Peter. F. Zika; L. P. Janeway 2012-5-16 25871 Yuba Northern Sierra Nevada Foothill/Highlands boundary (n SNF/H). Just E of junction of Jiggs Road and Ponderosa Way, 3 air km W of Ruff Hill, Brownsville. 715 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
  UCR261235  Carex xerophila Peter F. Zika, L. P. Janeway 2012-5-16 25871 Yuba Northern Sierra Nevada Range, foothill/highlands, just east of junction of Jiggs Road and Ponderosa Way, 3 air km west of Ruff Hill, Brownsvill 715 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
  UCD122152  Castilleja affinis Kathleen Keliher 1975-5-14 105 Yuba Near Road 5 and Cook Area, L 1-21 project area, Sierra Foothill Field Station. 243 Comment
  JEPS124082  Castilleja applegatei subsp. pinetorum Lowell Ahart 2015-5-9 20147 Yuba About 1 mile northeast of the intersection of Marysville Road and Highway 49, about 2 miles southwest of Camptonville. Comment
  UCD37871  Castilleja attenuata Beecher Crampton 1962-4-24 6290 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  JEPS113627  Castilleja campestris subsp. campestris Lowell Ahart 2007-5-12 13816 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
  SJSU11535  Castilleja lineariloba J. B. Willis Jr. 1969-4-19 Yuba 3 mi W of Smartville on Hammonton-Smartville Rd 182 Comment
  UCD122592  Castilleja lineariloba Barbara Yungert 1974-4-25 89 Yuba SC-14 project area, Sierra Foothill Field Station. Comment
  JEPS123870  Castilleja pruinosa Lowell Ahart 2015-4-30 20128 Yuba About 3 miles (air) southeast of Challenge. 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
  CHSC63176  Castilleja tenuis Lowell Ahart 1994-6-27 7377 Yuba Near the south side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  JEPS95413  Castilleja tenuis Lowell Ahart 1994-6-27 7377 Yuba 4 mi NE of Strawberry Valley (near S side of Schwartz Meadow, E side of La Porte Road) 1219 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
  UCD112044  Ceanothus cuneatus Christopher Mallek 2008-5-5 IC3- 16 Yuba Indiana Creek. 617 Comment
  UCD112086  Ceanothus cuneatus Barbara Yungert 1974-4-14 35 Yuba east of Road 5, K 1-11 project area, Sierra Foothill Field Station. Comment
  UCD37863  Ceanothus cuneatus Beecher Crampton 1962-4-24 6275 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCR169015  Ceanothus cuneatus David Charlton 2005-5-16 8006 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-BC50707  Ceanothus integerrimus Saichi Kawahara 1968-4-13 301 Yuba Park's Bar, Highway 20 at north bank Yuba River 91 Comment
  CAS-BOT-BC50709  Ceanothus integerrimus L. S. Smith 1939-4-19 2815 Yuba Near Camptonville 609 Comment
  SEINET12211866  Ceanothus integerrimus F. H. Utech 1990-6-5 90 -864 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  SEINET5339329  Ceanothus integerrimus M. Dailey 2003-1 33 Yuba 12 mi South of Grass Valley, Calif., on Hiway 20. 533 Comment
  CHSC10762  Ceanothus integerrimus var. californicus Lowell Ahart 1968-5-15 Yuba Near Bullards Bar Dam. 914 Comment
  CAS-BOT-BC50590  Ceanothus lemmonii Alice Eastwood 1930-4-12 17930 Yuba Texas Hill Road Comment
  CHSC113646  Ceanothus lemmonii L. P. Janeway 2014-5-12 11253 A 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
  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
  SJSU14260  Ceanothus lemmonii N. A. Hopkins 1989-4-28 1484 Yuba by Ridge Rd to Allegheny c. 3 mi off Hwy 49 914 Comment
  UC1070795  Ceanothus lemmonii M. A. Elvin 1933-7-1 33 Yuba 1 1/2 mi S of Virginia Ranch Smartsville Quad. 457 Comment
  UC1281465  Ceanothus lemmonii H. E. McMinn 1946-5-11 5505 Yuba Along highway from Dobbins to Comptonville Comment
  UCD112077  Ceanothus lemmonii Beecher Crampton 1966-6-14 7761 Yuba 1 mile west of Brownsville. Comment
  UCD112157  Ceanothus lemmonii H. and M. Dearing 1939-5-6 3286 Yuba West of Challenge. 609 Comment
  CHSC116341  Centaurea jacea nothosubsp. pratensis J. R. Keck Jr.; Horn 1989-8-23 PD 893580 Yuba North side of La Porte Rd. (E21) halfway between Challenge and Woodleaf. Comment
  RSA726851  Centaurium muehlenbergii L. Ahart 2007-6-30 14228 Yuba About 13 miles (air) northeast of Marysville. 30 Comment
  UC177583  Centaurium muehlenbergii H. M. Hall 1914-8-2 9834 Yuba near Marysville; Sacramento Valley 22 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
  CDA14558  Centaurium tenuiflorum G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3035 Yuba 1.4 miles west of New Bullards Bar Dam, between Log Cabin and Camptonville. 609 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
  CHSC47411  Centaurium tenuiflorum Lowell Ahart 1981-6-13 2856 Yuba Along the banks of a small stream, west of McGinn Hill, east of Loma Rica. 304 Comment
  CHSC96870  Centaurium tenuiflorum Lowell Ahart 2007-6-30 14228 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
  CHSC113172  Centromadia fitchii Lowell Ahart 2013-11-30 19311 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
  JEPS120986  Centromadia fitchii Lowell Ahart 2013-11-30 19311 Yuba on 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
  CAS-BOT-BC288823  Centromadia fitchii Mrs. H. C. Cantelow 1940-5-13 s.n. Yuba E of Marysville, on Highway 20 to Grass Valley Comment
  JEPS113633  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
  JEPS125922  Cephalanthera austiniae D. W. Taylor 2001-6-19 17796 Yuba Ca 3 air miles SW of Union Hill, along Forest Road 20N35 tributary to Brush Creek near Diamond Ravine. 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
  CAS-BOT-BC207378  Cercis occidentalis Saichi Kawahara 1969-4-13 304 Yuba Park's Bar, Highway 29 at north bank Yuba River 91 Comment
  CAS-BOT-BC136994  Cercocarpus betuloides var. betuloides Lowell Ahart 1977-4-18 s.n. Yuba Along Dry Creek about 10 miles northeast of Marysville 100 Comment
  CHSC11351  Chamaebatia foliolosa Lowell Ahart 1968-5-15 Yuba Near Bullards Bar Dam. 914 Comment
  SEINET3814609 Image available Chamaebatia foliolosa Lewis S. Rose 1933-5-27 33204 Yuba Woodleaf. 1052 Comment
  SEINET7073622  Chamaebatia foliolosa A. G. Vestal 1955-5-21 s.n. Yuba About 17.8 miles east of Oroville on Forbestown Road. UTM Zone 10, 647812mE, 4376141mN. Coordinate datum: NAD27. 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
  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
  HSC104009  Chamaesyce serpillifolia subsp. serpillifolia L. Ahart 2013-11-30 19299 Yuba About 2.5 mi. W of Oregon House, ~ 100 yds. N of Marysville Rd.; on the sides of a deep wash (Willow Glen Creek), NW of Dry Creek, below the high water line of Collins Lake 357 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
  SEINET11263898  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2002-10-9 9966 Yuba Below the high water line of Sly Creek Reservoir, about 1/8 mile SW of the Day Camp.; 0 1073 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
  SEINET11711581  Cheilanthes gracillima E. O. Pelton 1878-1 s.n. Yuba no further locality Comment
  CHSC97136  Chenopodium album Lowell Ahart 2007-6-30 14238 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
  JEPS113488  Chenopodium album Lowell Ahart 2007-6-30 14238 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
  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
  CAS-BOT-BC205805  Chlorogalum angustifolium James R. Shevock; Bob Holland 1985-5-6 11125 Yuba Sacramento Valley. Beale Air Force east of Marysville 40 Comment
  CAS-BOT-BC498792  Chlorogalum angustifolium Peter H. Raven 1953-5-9 5485 Yuba Flat soil of red plains ca. 4 mi. from Marysvlle on road to Grass Valley 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
  CAS-BOT-BC36351  Chrysolepis sempervirens Alice Eastwood 1918-4-7 6804 Yuba on Hills above North Fork & Yuba Rivers Comment
  CDA10772  Chrysothamnus nauseosus subsp. albicaulis L. Ahart 2002-9-8 9936 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
  UCD81491  Cicendia quadrangularis Christopher Michael Bronny 2009-3-23 3 Yuba Lower Sierra Nevada foothills. Area near Loma Rica. 158 Comment
  SEINET11857194  Cirsium occidentale F. H. Utech 1990-6-5 90 -855 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  OBI63079  Cirsium occidentale var. venustum R. K. Brummitt 1997-6-3 19641 Yuba Near jctn of Allegheny Rd and Rte 49, 4 km NE of N. San Juan 700 Comment
  CAS-BOT-BC172411  Clarkia biloba subsp. brandegeeae Lewis S. Rose 1940-5-28 40396 Yuba Oregon House 457 Comment
  CHSC46130  Clarkia biloba subsp. brandegeeae Lowell Ahart 1981-6-13 2846 Yuba Along the new gravel road, north-east side of McGinn Hill, east of Loma Rica. 274 Comment
  UC1299415  Clarkia biloba subsp. brandegeeae Freed W. Hoffman 1946-6-14 742 Yuba near North San Juan; North Fork Yuba River Comment
  CAS-BOT-BC164161  Clarkia concinna Anna Cramsie 1933-6-1 s.n. Yuba Smartville Comment
  SEINET12196708  Clarkia gracilis F. H. Utech 1990-6-5 90 -863 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 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
  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
  JEPS125979  Clarkia mildrediae subsp. lutescens D. W. Taylor 2001-6-18 17783 Yuba Ca 2.5 air miles NE of Strawberry Valley; canyon of Slate Creek along Forest Road 35 about 0.5 miles above the bridge on the S-facing canyon slope. 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
  CAS-BOT-BC163418  Clarkia purpurea subsp. quadrivulnera Mrs. J. E. Cramsie 1923-5-22 s.n. Yuba Smartsville 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
  CAS-BOT-BC163417  Clarkia purpurea subsp. quadrivulnera Lillian S. Mott 1965-4-21 LM 6548 Yuba Hiway 20 to Marysville Comment
  CAS-BOT-BC163419  Clarkia purpurea subsp. quadrivulnera Alice Eastwood 1921-5-22 10518 Yuba Los Vergils Comment
  UCD104972  Clarkia purpurea subsp. quadrivulnera Barbara Yungert 1974-5-9 142 Yuba Schubert project area, Sierra Foothill Field Station. Comment
  JEPS125921  Clarkia stellata D. W. Taylor 2001-6-19 17791 Yuba Ca 1 mile NW of Union Hill, along Forest Road 20N19 about400 m S of Forest Road 21 N17 Comment
  UCD147082  Clarkia unguiculata Chuck Hughes 2013-5-2 367 Yuba Northwest margin of Camp Far West Reservoir. 93 Comment
  CHSC59586  Claytonia parviflora subsp. parviflora H. E. Mac Lennan 1992-4-5 5 Yuba 20 air miles se of Oroville. 441 Comment
  CAS-BOT-BC443757  Claytonia rubra subsp. rubra Alice Eastwood 1918-4-7 6801 Yuba Camptonville Comment
  CHSC68481  Collinsia heterophylla Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir. 1997-4-6 7722 Yuba South of the poor dirt road, north of the Browns Valley Water Ditch, south of Dry Creek, about 1 mile east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 182 Comment
  UCD123665  Collinsia sparsiflora Barbara Yungert 1974-4-16 49 Yuba south of Road 4, SC-14 project area, Sierra Foothill Field Station. Comment
  JEPS18883  Collinsia sparsiflora var. collina Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1956-4-19 5618 Yuba 0.5 mi. n. Dobbins Ranger Station (CA State Dept. of Forestry) (along rd. from Oregon House to Dobbins) 548 Comment
  CHSC47689  Collinsia tinctoria Lowell Ahart 1981-6-13 2844 Yuba North-east side of McGinn Hill, east of Loma Rica. 274 Comment
  UCD35868  Collinsia tinctoria Beecher Crampton 1965-6-17 7378 Yuba ca. 0.75 mile north of Stanfield Hill, Willow Glen Creek. 396 Comment
  UCR197053  Collomia heterophylla George K. Helmkamp, E. A. Helmkamp 2008-5-20 13477 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  SJSU10223  Collomia heterophylla C. W. Sharsmith 1983-6-8 8804 Yuba Slate Cr at bridge crossing of the Scales-LaPorte Rd 1066 Comment
  CHSC115205  Collomia tinctoria Lowell Ahart 2015-4-30 20129 Yuba On the east side of the quarry, about 1 1/4 miles (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. 709 Comment
  JEPS123869  Collomia tinctoria Lowell Ahart 2015-4-30 20129 Yuba About 1 1/4 miles (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. Comment
  UCD126194  Convolvulus arvensis G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12839 Yuba Northern Sierra Nevada Mountains: along Hwy. CA-49, 0.5 mile south of Camptonville. 817 Comment
  JEPS124143  Conyza canadensis Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20638 Yuba Below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CHSC39279  Cordylanthus tenuis subsp. tenuis Lowell Ahart 1983-8-10 4271 Yuba 4 miles south-east of Challenge. 1000 Comment
  JEPS95066  Cordylanthus tenuis subsp. tenuis Lowell Ahart 1997-8-7 7813 Yuba 3 air mi se of Challenge (on n. side of dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  JEPS95144  Cordylanthus tenuis subsp. tenuis Lowell Ahart 1997-8-7 7813 Yuba 3 air mi se of Challenge (on n. side of dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  UCD117173  Cornus nuttallii Kathleen Keliher 1975-4-30 74 Yuba Along road between Bullards Bar Dam and Challenge. 762 Comment
  CDA38547  Cornus nuttallii T. C. Fuller 1961-9-21 7028 Yuba Moonshine Ridge, ca. 5 mi. west of Camptonville. 0 Comment
  SEINET8083560  Cornus nuttallii D. E. Selleck 1979-4-28 s.n. Yuba About 3 miles north of highway junction 140 and 70. Comment
  UCD33104  Cornus sericea subsp. sericea Beecher Crampton 1966-6-14 7739 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  CHSC69138  Cornus sessilis Lowell Ahart 1997-8-7 7821 Yuba On sides of small stream, a branch of Little Oregon Creek, on the south side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  SJSU10212  Cornus sessilis C. W. Sharsmith 1983-6-7 8793 Yuba Rose Ranch c. 4 mi NE of Strawberry Valley (Yuba Co) on Quincy-La Porte Rd; Yuba & Sierra county boundary 1432 Comment
  CHSC116269  Crassula aquatica Lowell Ahart 2015-11-19 20690 Yuba 100 yards or more north of spillway area, below high water line, west of Lake Francis, about 1 1/2 miles south of Dobbins. 512 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
  CHSC90337  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
  HSC7972  Croton setiger T. F. Newman 1965-10-9 6552 Yuba Carnes Ranch, 10 mi. N of Marysville Comment
  UC1254613  Crucianella angustifolia Beecher Crampton 1967-5-17 7945 Yuba 0.5 mi w Timbuctoo Comment
  UCD33229  Crucianella angustifolia Beecher Crampton 1967-5-17 7945 Yuba Yuba County, 1/2 mile west of Timbuctoo. Comment
  UCD37137  Crucianella angustifolia Beecher Crampton 1957-6-5 4163 Yuba Town of Timbuctoo, across from old Stewart and Brothers and Wells Fargo Store. Comment
  SEINET7072976  Crucianella angustifolia W. P. Vestal 1963-5-29 s.n. Yuba Olivehurst-Smartville Road about 0.4 mile southwest of paved road from Beale Air Force Base toward Smartville. Comment
  CHSC81844  Crypsis alopecuroides Lowell Ahart 2001-11-2 9406 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  SEINET10661810  Crypsis alopecuroides Lowell Ahart 2007-11-8 Ahart 14591 Yuba T14N, R6E, Section 15. About 1.4 mile north of Rock Creek, on the strand of Camp Far West Reservoir, about 6 1/2 miles (air) northeast of Sheridan. 69 Comment
  CHSC81845  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
  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
  CAS-BOT-BC80750  Cupressus macnabiana C. B. Wolf; E. R. Johnson 1934-10-3 6152 Yuba Sierra Nevada Foothills, Texas Hill, approx. 2 mi. W., of Dobbins 548 Comment
  CAS-BOT-BC80751  Cupressus macnabiana C. B. Wolf; E. R. Johnson 1934-10-4 6157 Yuba Sierra Nevada Foothills, N. side Indiana Creek, 1 7/10 mi. W. of Indiana Ranch 548 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
  CAS-BOT-BC80754  Cupressus macnabiana Alice Eastwood 1930-4-12 17931 Yuba near top of Texas [hill] Hill Comment
  CAS-BOT-BC80755  Cupressus macnabiana Junea Kelley 1922-7-16 s.n. Yuba Dobbins Comment
  CHSC45223  Cupressus macnabiana Lowell Ahart 1976-11-7 1001 Yuba On the east side of Frenchtown Road, about 1 mile north of Oregon House. 457 Comment
  CHSC45836  Cupressus macnabiana Lowell Ahart 1970-7-1 58 Yuba Near the Brownsville dump, about 2 miles west of Brownsville. 609 Comment
  NY16691  Cupressus macnabiana A. Eastwood 1930-4-12 7931 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
  NY16722  Cupressus macnabiana C. B. Wolf 1934-10-4 6157 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
  NY16723  Cupressus macnabiana C. B. Wolf 1934-10-4 6157 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
  RSA17594  Cupressus macnabiana C. B. Wolf, E. R. Johnson 1934-10-3 6151 Yuba Texas Hill, 2 miles west of Dobbins. Sierra foothills 549 Comment
  RSA17595  Cupressus macnabiana C. B. Wolf, E. R. Johnson 1934-10-3 6152 Yuba Texas Hill, 2 miles west of Dobbins. Sierra foothills 549 Comment
  RSA724935  Cupressus macnabiana L. P. Janeway 2006-5-24 8627 Yuba Northern Sierra Nevada Foothills. Along Forsythe Road 2.7 road km south of New York House Road; above Prince Albert Creek 604 Comment
  UC1134224  Cupressus macnabiana H. A. Jensen 1934-11-14 376 Yuba 2 mi nw of Indiana Ranch; Smartsville Quadrangle Comment
  UCD110843  Cupressus macnabiana Christopher Mallek 2008-1 s.n. Yuba Bald Mountain. 935 Comment
  UCD133516  Cupressus macnabiana E. L. Begg 1970-8-6 s.n. Yuba Lake Mildred, Oregon House. 609 Comment
  NY16739  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
  SEINET10867000  Cupressus macnabiana Carl B. Wolf, E. R. Johnson 1934-10-4 Wolf 2118 Yuba Sierra Nevada foothills, N. side Indiana Creek, 1 7/10 mi W of Indiana Ranch. Upper sonoran:- Digger Pines, Quercus wislizenii. Sun. Rocky S slope. 550 Comment
  SEINET3863434 Image available Cupressus macnabiana Beecher Crampton 1972-2-14 8769 Yuba Ca. 1.5 miles N.N.E. of Oregon House.; 0 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
  CDA20596  Cuscuta japonica Roush, Anderson, Umino, Storm 2005-10-21 PDR 1295325 Yuba Sacramento Valley; 4838 Western Ave, Olivehurst. 0 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
  CHSC97772  Cuscuta pentagona Lowell Ahart 2007-11-1 14536 Yuba On Xanthium strumarium, 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
  UCD119167  Cynoglossum grande Kathleen Keliher 1975-5-15 108 Yuba Along Cleaveland Road, 3 miles east of Camptonville. 914 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
  CHSC108211  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
  CHSC69436  Cyperus difformis Lowell Ahart 1997-8-13 7684 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
  JEPS94449  Cyperus eragrostis Lowell Ahart 1997-8-30 7879 Yuba about 1 air mi s of Woodleaf (on w side of the dirt road, near a road culvert) 944 Comment
  RSA726803  Cyperus eragrostis L. Ahart 2007-6-30 14229 Yuba About 13 miles (air) northeast of Marysville. 30 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
  UCD141047  Cyperus eragrostis G. K. Helmkamp 2006-10-10 11524 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
  UCD162515  Cyperus eragrostis Steve Matson 2007-5-19 1711 Yuba nSNF; lower Sierra foothills westslope; about 1 mile south of Highway 20, off Smartville Rd. Smiling Dog Ranch. 268 Comment
  UCR179807  Cyperus eragrostis George K. Helmkamp, E. A. Helmkamp 2006-10-10 11524 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
  CAS-BOT-BC114574  Cyperus eragrostis W. V. Middlekauff 1954-9-11 s.n. Yuba 3 mi NW of Rio Oso Post Office. Comment
  JEPS124260  Cyperus erythrorhizos Lowell Ahart 2015-11-19 20683 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. 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
  JEPS95784  Cyperus iria Lowell Ahart 1999-9-5 8197 Yuba about 5 miles (air) northeast of Marysville; ; 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
  CHSC83232  Cyperus niger Lowell Ahart 2002-10-8 9946 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
  JEPS103482  Cyperus niger Lowell Ahart 2002-10-8 9946 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
  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
  CHSC10804  Cytisus scoparius Lowell Ahart 1968-4-21 Yuba Five miles S.E. of Challenge. 609 Comment
  CHSC41901  Cytisus scoparius Lowell Ahart 1973-5-6 219 Yuba About 1 mile north of Challenge. 762 Comment
  UCD105691  Cytisus scoparius Barbara Yungert 1974-4-18 63 Yuba Near four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  POM319563  Dactylis glomerata Patricia Wilder 1971-6-23 5209 Yuba West slope of the Sierra Nevada Mt. Range; Oregon Hill Road, 5.5 miles southeast of Challenge; west of California State Highway 49; Yuba River drainage area. Growing along roadside. 701 Comment
  SD236138  Dactylis glomerata G. K. Helmkamp, E. A. Helmkamp 2008-5-20 13474 Yuba Sierra Nevada Mountains Foothills: along CA-49, 466 Comment
  CAS-BOT-BC189855  Danthonia californica Lowell Ahart 1979-6-25 s.n. Yuba 2 miles east of Challenge. 700 Comment
  CHSC112950  Danthonia californica var. americana L. P. Janeway 2014-6-26 11421 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. 852 Comment
  JEPS122453  Danthonia californica var. americana L. P. Janeway 2014-6-26 11421 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
  RSA712852  Danthonia californica var. americana L. P. Janeway 2006-5-24 8615 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 & Forbestown Road. 235 Comment
  UC1153912  Danthonia californica var. americana Beecher Crampton 1957-6-5 4159 Yuba 1.3 mi e Oregon House store Comment
  UCD60730  Danthonia californica var. americana Beecher Crampton 1965-6-17 7380 Yuba 4 miles S of Brownsville, Willow Glen Road. 670 Comment
  RSA653943  Danthonia unispicata Beecher Crampton 1966-6-14 7764 Yuba 1 mile east of Brownsville on La Porte road, near Brownsville Fire Station, CA div. of Forestry. Comment
  UCD61331  Danthonia unispicata Beecher Crampton 1966-6-14 7764 Yuba 1 mile west of Brownsville. 670 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
  JEPS95893  Daucus carota Lowell Ahart 1999-9-5 8192 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
  SEINET12092463  Delphinium decorum L. S. Rose 1931-1 s.n. Yuba Brownsville Comment
  UC635338  Delphinium gracilentum H. L. Mason 1927-5-11 3732 Yuba near Dobbins 457 Comment
  CAS-BOT-BC8791  Delphinium gracilentum Gordon H. True 1962-5-1 533 Yuba Comptonville-Downieville Highway, about 1 mile north of Comptonville 822 Comment
  SEINET12104133  Delphinium gracilentum F. H. Utech 1990-6-5 90 -869 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  CAS-BOT-BC8558  Delphinium hansenii H. Lewis; C. Epling 1946-5-5 606 Yuba Bridge 2234, 3.8 miles west of Winters Comment
  CAS-BOT-BC8559  Delphinium hansenii Lewis Samuel Rose 1940-5-28 40379 Yuba Browns Valley 60 Comment
  LA207395  Delphinium hansenii H. Lewis; M. Lewis 1947-6-7 764 Yuba 2.4 mi. W of Dobbins Comment
  UC1031402  Delphinium hansenii subsp. hansenii H. Lewis and C. Epling 1941-5-26 Yuba Smartville Comment
  UCD96546  Delphinium patens W. R. Powell 1968-5-15 1497 Yuba On Fountain House Road, 2 miles northeast of Dobbins. 792 Comment
  UCD96556  Delphinium patens Barbara Yungert 1974-4-12 28 Yuba Along fence near county road, F-51 project area. Sierra Foothill Field Station. 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-BC116483  Delphinium patens subsp. patens Gordon H. True 1968-5-6 4229 Yuba Near Gales Orchard ca. 6 miles east of Camptonville 1249 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
  UCD63493  Deschampsia elongata Beecher Crampton 1957-6-5 4157 Yuba 1.3 miles east of Oregon House Store. 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
  RSA726956  Descurainia sophia L. Ahart 2007-5-12 13782 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  UCD114219  Dicentra formosa subsp. formosa R. N. Raynor 1939-3-25 s.n. Yuba Near Marysville. Comment
  CAS-BOT-BC253651  Dichanthelium acuminatum subsp. acuminatum Lowell Ahart 1979-6-25 s.n. Yuba 2 miles E of Challenge 700 Comment
  JEPS98606  Dichanthelium acuminatum subsp. fasciculatum Lowell Ahart 2000-6-19 8492 Yuba In a meadow, ca 100 yards N of New York Flat Road, ca 1 1/4 miles (air) NE of Brownsville, ca 2 1/4 miles (air) W of Challenge. 731 Comment
  UCD112037  Dichelostemma capitatum Christopher Mallek 2008-5-5 IC3- 18 Yuba Indiana Creek. 617 Comment
  UCR169023  Dichelostemma capitatum David Charlton 2005-5-16 8016 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-BC483644  Dichelostemma capitatum Peter H. Raven 1953-5-9 5469 Yuba 1 mile from Brownsville on road to Challenge Comment
  CHSC100774  Dichelostemma capitatum subsp. capitatum L. P. Janeway 2008-5-11 9358 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. At top of dry northwest-sloping swale. 1012 Comment
  CHSC59577  Dichelostemma capitatum subsp. capitatum H. E. Mac Lennan 1992-4-15 17 Yuba 20 air miles se of Oroville. 518 Comment
  SEINET13276746 Image available Dichelostemma capitatum subsp. capitatum George K. Helmkamp 2014-1 22767 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 (Smartsville 7.5' Q.) 264 Comment
  UCD139439  Dichelostemma capitatum subsp. capitatum Barbara Yungert 1974-4-8 7 Yuba west end of Forbes Road 3, Sierra Foothill Field Station. Comment
  CHSC97503  Dichelostemma multiflorum Lowell Ahart 2007-5-14 13885 Yuba 60 yards northeast of the gate, about 20 yards north of the power tower, about 70 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 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
  UCD139261  Dichelostemma multiflorum Barbara Yungert 1974-4-29 91 Yuba North of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UCD37884  Dichelostemma multiflorum Beecher Crampton 1962-4-24 6308 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CAS-BOT-BC500916  Dichelostemma multiflorum L. S. Smith 1926-5-18 1869 Yuba Tahoe Forest, north side South Fork of Yuba, Downieville Road 762 Comment
  SEINET7042626  Dichelostemma multiflorum 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
  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
  UCD139254  Dichelostemma multiflorum R. O. Hanes 1992-4-6 50 Yuba Plumas Forest. 731 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-BC501113  Dichelostemma volubile Carl B. Wolf 1937-6-11 8778 Yuba 1 6/10 mile NW of Stanfield Hill along a fork of So. Honcut Creek, Sierra Nevada Foothills 304 Comment
  CAS-BOT-BC501115  Dichelostemma volubile Barbara T. Keller 1975-6-10 1520 Yuba Willow Glen Road from Stanfield Hill to Brownsville, about 11.5 miles north of the junction of Willow Glen Road and Marysville Road 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
  SEINET7042659  Dichelostemma volubile A. G. Vestal 1963-5-30 s.n. Yuba Turn off to Timbuctoo at Yuba river. Smartville quadrangle UTM Zone 10, 644012mE, 4342272mN. Comment
  SJSU9998  Dichelostemma volubile J. B. Willis Jr. 1968-4-27 71 Yuba S bank Yuba River on old stage rd to Timbucktoo, 18 mi E of Marysville Comment
  CHSC47404  Dichondra donelliana Lowell Ahart 1981-6-13 2859 Yuba On the banks of a small stream, about 1/2 mile west of McGinn Hill, east of Loma Rica. 365 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
  CHSC81846  Digitaria sanguinalis Lowell Ahart 2001-11-2 9408 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 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
  CAS-BOT-BC153790  Diplacus angustatus Peter H. Raven 1953-5-9 5480 Yuba 2 miles from Brownsville on road to Dobbins Comment
  CAS-BOT-BC153792  Diplacus angustatus Alice Eastwood 1930-4-12 s.n. Yuba Texas hill road Comment
  CAS-BOT-BC150266  Diplacus grandiflorus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54075 Yuba 1.4 miles southwest of Bullards Bar Dam on road to Challenge 609 Comment
  CHSC10845  Diplacus grandiflorus Lowell Ahart 1967-6-6 Yuba Near Bullard's Bar. 609 Comment
  CHSC62590  Diplacus torreyi L. P. Janeway 1993-6-15 4385 Yuba Plumas National Forest. 1.3 mi east of Woodleaf, 1.2 mi southwest of Clipper Mills; uppermost drainage of Slapjack Creek. 1043 Comment
  CHSC97634  Diplacus 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
  CHSC33917  Disporum hookeri M. S. Taylor; L. Hanson 1981-4-30 3579 Yuba On n side of 20N04.3, ca. 1 mi e of Clipper Mills. 1066 Comment
  JEPS115018  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
  UCD80685  Dodecatheon clevelandii subsp. patulum CNPS SN Foothill Team 2005-3-16 SNFN 0057 Yuba CDFG, Spenceville Wildlife Area, ca. 0.75 mile up the Pitman Road, from junction of Smartville Road, just south of the road. 199 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
  CHSC59582  Dodecatheon hendersonii H. E. Mac Lennan 1992-3-14 1 Yuba 20 air miles se of Oroville. 472 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
  UCD118967  Dodecatheon hendersonii Barbara Yungert 1974-4-8 9 Yuba West of Forbes Hill Road, H-9 project area, Sierra Foothill Field Station. Comment
  CHSC43509  Dopatrium junceum Lowell Ahart 1977-8-31 1559 Yuba On Shintaffer Farms, about 2 miles north-east of Marysville. 27 Comment
  UCR168801  Downingia David Charlton 2005-5-16 8029 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
  SEINET7072552  Downingia bacigalupii A. G. Vestal 1963-5-7 s.n. Yuba About 3.5 miles north of Wheatland on Jasper Lane. Coordinate datum: NAD 27. UTM Zone 10, 636590mE, 4223573mN. Comment
  RSA389177  Downingia bicornuta C. B. Wolf 1937-5-18 8736 Yuba Sacramento Valley, 2 mi S of Marysville 18 Comment
  UC718544  Downingia bicornuta var. picta Carl B. Wolf 1937-5-18 Yuba 2 mi s Marysville; Sacramento Valley 18 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
  UC1283737  Downingia pulchella Beecher Crampton 1965-5-11 7319 Yuba 2.5 mi sw Browns Valley 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
  POM161767  Draperia systyla R. C. Bacigalupi 1927-7-2 1589 Yuba Highway to Downieville about 8 mi NE of Camptonville. Comment
  SJSU10221  Draperia systyla C. W. Sharsmith 1983-6-8 8802 Yuba Slate Cr at bridge-crossing of Scales & Quincy-La Porte Rds 1066 Comment
  JEPS122443  Drymocallis glandulosa var. reflexa L. P. Janeway 2014-5-12 11248 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
  CAS-BOT-BC535048  Drymocallis glandulosa var. reflexa Elmer I. Applegate 1934-5-2 8892 Yuba Near Indian Valley Comment
  UCD136425  Dryopteris arguta G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12828 Yuba Northern Sierra Nevada Mountains Foothills: Mountain House Road 0.6 mile west of Sierra county line. Sleighville area beside Willow Creek. 1021 Comment
  CAS-BOT-BC428064  Dudleya cymosa subsp. cymosa Barbara T. Keller 1975-6-10 1511 Yuba Willow Glen Road from Stanfield Hill to Brownsville, about 11.5 mi. north of junction of Willow Glen Road and Marysville Road. Comment
  CHSC45550  Dysphania botrys Lowell Ahart 1977-11-13 1608 Yuba Near the edge of the road, west of the bridge across Slate Creek, about 5 miles east of Strawberry Valley. 914 Comment
  UCD98749  Dysphania botrys Henry Michalk 1964-11-17 s.n. Yuba just north of Yuba River, ca. 3 miles north of North San Juan, State Highway 49. 609 Comment
  JEPS121311  Dysphania pumilio Lowell Ahart 2013-11-30 19306 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
  UCD98836  Dysphania pumilio J. M. Tucker 1974-9-14 4341 Yuba At Rose Ranch, ca. 8 miles (by winding dirt road) northeast of Strawberry Valley, on Sierra-Yuba county line. Comment
  CHSC96872  Echinochloa colona Lowell Ahart 2007-6-30 14233 Yuba Near a new ditch, near and east 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
  JEPS113486  Echinochloa colona Lowell Ahart 2007-6-30 14233 Yuba Near a new ditch, near and east 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
  JEPS113716  Echinochloa colona Lowell Ahart 2007-6-30 14230 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 28 Comment
  HSC9654  Echinochloa crus-galli T. F. Newman 1965-8-22 6564 Yuba Carnes Ranch, 10 mi. N of Marysville 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
  UCD60830  Echinochloa crus-galli Beecher Crampton 1963-9-9 6879 Yuba 2.5 miles n.n.w. Smartsville, 5 miles east Brown's Valley. U.C. Sierra Foothill Field Sta. Comment
  UCD60888  Echinochloa crus-galli Beecher Crampton 1964-10-22 7225 Yuba 3 miles east Brown's Valley, Dry Creek. 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
  CDA19024  Eichhornia crassipes unknown 2000-11-14 PDR 116726 Yuba Widespread in 3 acres on East Park, Marysville. Comment
  CHSC116028  Elatine Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20648 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
  CHSC76278  Elatine heterandra Lowell Ahart 1999-9-17 8252 Yuba Sam Shintaffer Farm, south of Woodruff Lane, south of Mathews Road, about 1/2 mile south of Sam Shintaffer's rice dryer, about 4-1/2 miles (air) northeast of Marysville. 24 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
  SEINET13709663  Eleocharis acicularis var. bella Lowell William Ahart, Lowell William Ahart 2000-1 8507 Yuba N of Scales Road about 3 Mi. NE of Strawberry Valley (T20N, R8E, sec 15, NW 1/4) 4000 Ft. 1219 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
  CHSC116029  Eleocharis atropurpurea Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20647 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
  CHSC116314  Eleocharis bella Lowell Ahart 2015-11-19 20672 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
  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
  JEPS98364  Eleocharis bella Lowell Ahart 2000-6-23 8507 A Yuba 3 mi NE of Strawberry Valley (on a dirt road,100 yds E of the meadow along La Porte Road,100 yds N of Scales Road) 1219 Comment
  CHSC63295  Eleocharis bolanderi Lowell Ahart 1994-6-27 7375 Yuba In about the center of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  CHSC78296  Eleocharis bolanderi Lowell Ahart 2000-7-13 8580 Yuba In a small meadow 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
  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
  JEPS103479  Eleocharis engelmannii Lowell Ahart 2002-10-9 9950 Yuba Area S 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
  CHSC78292  Eleocharis macrostachya Lowell Ahart 2000-7-13 8579 Yuba In a small meadow, 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
  JEPS113715  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
  UCR201938  Eleocharis macrostachya George K. Helmkamp, E. A. Helmkamp 2008-10-6 14205 Yuba Sacramento Valley, junction of CA-65 and Ostrom No. 3 Road, southeast of Olivehurst 24 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
  JEPS103518  Eleocharis obtusa Lowell Ahart 2002-10-9 9973 Yuba Along Lost Creek, below the high water line of Sly Creek Reservoir, ca 50 yards SW 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
  CAS-BOT-BC113099  Eleocharis obtusa Beecher Crampton 1966-6-14 7757 Yuba 1 mile east of Brownsville, La Porte Road. Stony creek bed. Comment
  CHSC116335  Eleocharis pachycarpa Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20642 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
  CHSC78299  Eleocharis pachycarpa Lowell 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. 457 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
  CHSC84933  Eleocharis pachycarpa Lowell Ahart 2003-10-11 10622 Yuba Small wash in a 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
  JEPS103481  Eleocharis pachycarpa Lowell Ahart 2002-10-9 9949 Yuba Area S 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
  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
  SEINET7586814 Image available Eleocharis pachycarpa Lowell 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. 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
  SEINET3441893  Eleocharis palustris Unknown 2000-7-13 8579 Yuba College Station, College Station, Rock Prairie Road, about 2 miles south of the junction with Green's Prairie road, near old parking lot at Lick Creek Park 970 Comment
  UCD84798  Eleocharis quadrangulata Collector Unknown 2010-7-1 s.n. Yuba Marysville area. Comment
  CHSC78304  Eleocharis quinqueflora Lowell Ahart 2000-6-23 8506 A Yuba In a small meadow, 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
  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
  JEPS98611  Eleocharis quinqueflora Lowell Ahart 2000-6-23 8506 Yuba Bog in a small meadow, 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
  UCR263568  Eleocharis quinqueflora Lowell Ahart 2000-6-19 8493 Yuba Sierra Nevada Mtns., about 100 yards north of New York Flat Road, about 1.25 miles (air) northeast of Brownsville, about 2.25 miles (air) west of Challenge 732 Comment
  RSA716309  Eleocharis quinqueflora L. Ahart 2000-6-19 8493 Yuba About 100 yards north of New York Flat Road, about 1.25 miles (air) northeast of Brownsville, about 2.25 miles (air) west of Challenge 732 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
  CAS-BOT-BC451544  Elodea canadensis Lowell Ahart 1977-9-25 s.n. Yuba 2 mi. NE of Marysville. On the Sam Shintaffer Farm. 35 Comment
  CDA36342  Elodea nuttallii Jonathan Heintz 2011-12-14 PDR# 1322430 Yuba Browns Valley, 9659 Stern Lane. 0 Comment
  POM319561  Elymus Patricia Wilder 1971-6-23 5198 Yuba About two miles southeast of Forbestown on Challenge Cut-off Road; West slope of the Sierra Nevada Mt. Range 762 Comment
  UCR232249  Elymus caput-medusae George K. Helmkamp, E. A. Helmkamp 2011-5-6 17214 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
  UCD147098  Elymus elymoides var. elymoides Chuck Hughes 2013-5-16 382 Yuba Near margin of Camp Far West Reservoir. 95 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
  UCD62317  Elymus glaucus Beecher Crampton 1957-6-5 4139 Yuba 1 mile east of Stanfield Hill. Comment
  JEPS118046  Elymus glaucus subsp. glaucus Lowell Ahart 2011-6-7 17423 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
  CHSC84144  Elymus stebbinsii subsp. septentrionalis Lowell Ahart 2003-7-2 10341 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
  JEPS104068  Elymus stebbinsii subsp. septentrionalis Lowell Ahart 2003-7-2 10341 Yuba about 200 yds S of the 4-H Camp, on W side of Oregon Hill Road, about 1/2 mi N of Marysville Road, about 2 air mi NE of Dobbins 815 Comment
  CHSC44537  Elytrigia intermedia subsp. barbulata Lowell Ahart 1979-6-25 1941 Yuba A logged over area, about 1 mile south 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
  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
  JEPS43833  Epilobium brachycarpum L. S. Smith 1927-4-18 2017 Yuba Comptonville and w Tahoe (along road) 609 Comment
  JEPS94446  Epilobium brachycarpum Lowell Ahart 1997-8-30 7876 Yuba about 3 air mi e of Challenge (on w side of the dirt road, in clear cut, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  UCR179301  Epilobium brachycarpum George K. Helmkamp, E. A. Helmkamp 2006-10-10 11529 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
  CHSC69141  Epilobium ciliatum subsp. ciliatum Lowell Ahart 1997-8-7 7818 Yuba On the bottom of a small stream, 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
  JEPS43829  Epilobium ciliatum subsp. ciliatum W. L. Jepson 1934-7-29 16754 Yuba Marysville Comment
  JEPS94624  Epilobium ciliatum subsp. ciliatum Lowell Ahart 1997-8-7 7818 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
  UCD80478  Epilobium ciliatum subsp. ciliatum CNPS SN Foothill Team 2005-7-5 SNNR 0467 b Yuba CDFG Daugherty Hill Wildlife Area. 278 Comment
  UCD80486  Epilobium ciliatum subsp. ciliatum CNPS SN Foothill Team 2005-7-5 SNNR 0473 b Yuba CDFG Daugherty Hill Wildlife Area. 280 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
  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
  JEPS113484  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
  CHSC97228  Epilobium densiflorum Lowell Ahart 2007-6-22 14211 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
  SEINET13709825  Epilobium densiflorum Lowell William Ahart, Lowell William Ahart 2003-1 10413 Yuba 6 Air Mi. S of Smartville, 2 Mi. N Jct. Waldo and Smartville Roads (39 Deg 09'43.6"N, 121 Deg 19'02.3"W) 426 Ft. 130 Comment
  CHSC32095  Epilobium minutum L. Ahart 1973-5-6 210 Yuba Near Challenge. 762 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
  CHSC97675  Epilobium torreyi Lowell Ahart 2007-5-12 13800 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
  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
  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
  SEINET10717829  Eragrostis Lowell Ahart 2007-11-13 Ahart 14599 Yuba T13N, R6E, southwest 1/4 Section 19. On the west side of Camp Far West Road, at the north edge of the town of Sheridan. 35 Comment
  CHSC81849  Eragrostis hypnoides Lowell Ahart 2001-11-2 9407 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 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
  JEPS95149  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
  SEINET3015267  Eragrostis mexicana subsp. virescens L. Ahart 1997-8-13 7866 Yuba On the south side of Scott Forbes Rd, 1.4 mi E of the intersection of Scott Forbes Rd and Peoria Rd., just E of Gray Drive about 2 1/4 mi 9air) E of Browns Valley. 91 Comment
  JEPS94364  Eragrostis pectinacea var. pectinacea Lowell Ahart 1997-8-13 7867 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
  CHSC113189  Eragrostis pilosa var. pilosa Lowell Ahart 2013-11-30 19303 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
  JEPS113512  Eremocarpus setiger Lowell Ahart 2007-5-12 13790 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
  CHSC45111  Ericameria arborescens Lowell Ahart 1975-9-28 988 Yuba Near the Bullards Bar Dam. 609 Comment
  CHSC76268  Erigeron canadensis Lowell Ahart 1999-9-17 8253 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
  CDA4932  Erigeron divergens Unknown 1925-5-16 1660 Yuba Marysville. 0 Comment
  CHSC46918  Erigeron petrophilus var. sierrensis Lowell Ahart 1980-8-12 2528 Yuba Near the dirt road, about 2 miles south-east of Woodleaf. 731 Comment
  JEPS95030  Erigeron petrophilus var. sierrensis Lowell Ahart 1997-8-7 7809 Yuba about 3 air mi se of Challenge (on n side of the dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  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
  SBBG8139  Erigeron philadelphicus H. and M. Dearing 1939-5-6 3285 Yuba near Challenge Comment
  CAS-BOT-BC214557  Erigeron philadelphicus Alice Eastwood 1921-5-22 10573 Yuba Los Vergils Comment
  JEPS113577  Erigeron philadelphicus var. 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
  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
  CAS-BOT-BC216038  Eriodictyon californicum Alice Eastwood 1930-4-12 s.n. Yuba Marysville Flower Show Comment
  CHSC68479  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
  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
  SEINET5499350  Eriodictyon californicum Unknown 1959-4-11 s.n. Yuba 5 miles E of Oroville, on US 40 alternate 244 Comment
  CAS-BOT-BC261458  Eriogonum nudum var. nudum Lowell Ahart 1980-8-12 2535 Yuba Along Slate Creek 1250 Comment
  CHSC107276  Eriogonum umbellatum var. ahartii L. P. Janeway 2011-8-10 10640 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
  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
  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
  HSC96690  Eriogonum umbellatum var. ahartii L. P. Janeway, David Toren, Dan Lubin, Erin Brandy 2006-7-17 8814 Yuba N High Sierra Nevada, slope on E side above Indian Creek, 3 km. S of Woodleaf, 2.8 km. E of Challenge 815 Comment
  JEPS95068  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-8-7 7835 Yuba about 3 air mi e of Challenge (on n side of dirt road, nw of the bridge across Indian Creek) 762 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
  CAS-BOT-BC265202  Eriogonum umbellatum var. speciosum Lowell Ahart 1980-8-12 2526 Yuba Ca. 2 mile south-east of Woodleaf, Sierra Nevada 800 Comment
  UCR194911  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 802 Comment
  UCR196979  Eriophyllum lanatum var. achilleoides George K. Helmkamp, E. A. Helmkamp 2008-5-20 13464 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 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-BC301317  Eriophyllum lanatum var. croceum Lewis S. Rose 1939-6-6 39225 Yuba Brownsville 685 Comment
  CAS-BOT-BC308241  Eriophyllum lanatum var. grandiflorum Alice Eastwood 1921-5-22 10539 Yuba Los Vergils Comment
  CAS-BOT-BC308243  Eriophyllum lanatum var. grandiflorum Mrs. J. E. Cramsie 1923-5-22 s.n. Yuba Smartsville Comment
  CHSC112961  Eriophyllum lanatum var. grandiflorum L. P. Janeway 2014-7-2 11433 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
  CHSC69134  Eriophyllum lanatum var. grandiflorum Lowell Ahart 1997-8-7 7825 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
  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
  CHSC97676  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
  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
  JEPS113510  Erodium moschatum 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
  RSA125337  Eryngium castrense P. H. Raven, Otto T. Solbrig 1959-6-15 13225 Yuba 9.4 miles south of Marysville on Highway 99 Comment
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Nov 8 2011
  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
  UCD144170  Eryngium castrense Vernal Pool Team 2002; Carol Witham and Jennifer Buck 2002-6-5 352 Yuba Beale Air Force Base, North Beale Road. UTMs 10S0646172; 4300072. 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
  UCR194897  Erysimum capitatum var. capitatum George K. Helmkamp, E. A. Helmkamp 2007-5-26 12142 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
  CHSC118502  Erythranthe bicolor L. P. Janeway 2016-5-11 11958 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 20N13. 920 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
  CHSC19697  Erythranthe guttata S. A. Harrison 1971-6-25 27 Yuba On n side of gravel road originating at main gate to Camp Far West recreation area 8 mi e of Wheatland. Comment
  CAS-BOT-BC502829  Erythronium multiscapideum Mrs. D. C. McGanney 1921-4-1 s.n. Yuba Smartville Comment
  CAS-BOT-BC502830  Erythronium multiscapideum Elmer I. Applegate 1929-5-1 5555 Yuba 5 miles north of San Juan, north fork Yuba River, near log cabin Comment
  CAS-BOT-BC502831  Erythronium multiscapideum Lowell Ahart 1982-5-8 3424 Yuba 4 miles east of Forbestown 825 Comment
  CAS-BOT-BC502832  Erythronium multiscapideum Volney Rattan 1880-1-1 s.n. Yuba Brownsville Comment
  CDA39344  Erythronium multiscapideum Yuba County School Children 1930-4-12 s.n. Yuba [No further data.] 0 Comment
  JEPS107321  Eschscholzia caespitosa Lowell Ahart 2005-3-11 11615 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-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
  CAS-BOT-BC419485  Eschscholzia lobbii Gordon H. True 1963-4-17 1181 Yuba About 10 miles east of Marysville on Marysville-Grass Valley Hwy. 30 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
  RSA21286  Eschscholzia lobbii Carl B. Wolf 1937-5-12 8630 Yuba 4 miles NE of Wheatland on road to Grass Valley 61 Comment
  UCD95379  Eschscholzia lobbii M. Sciuto-Creps 1998-4-26 32 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. Comment
  CDA4807  Euphorbia lathyris R. W. Nelson 1958-5-27 466 -58 Yuba 0 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
  CHSC68476  Euphorbia peplus Lowell Ahart 1997-4-6 7717 Yuba On the south side of the road, east of the intersection of Scott Forbes Road and Peoria Road, just southeast of the bridge across Dry Creek, about 14 miles northeast of Marysville. 60 Comment
  CDA4860  Euphorbia peplus R. Noise 1960-3 Yuba 0 Comment
  UCD169274  Euphorbia serpillifolia Lowell Ahart 2013-11-30 19299 Yuba Willow Glen Creek, northwest of Dry Creek, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  JEPS94937  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
  UCD142494  Euphorbia spathulata Barbara Yungert 1974-4-19 67 Yuba Sierra Foothill Field Station. SC-14 project area. Comment
  CAS-BOT-BC312190  Eurybia radulina L. P. Janeway 1993-9-7 4590 Yuba About 3 mi. east of Woodleaf ca 3 mi. southwest of Clipper Mills, La Porte Ranger District, Woodleaf Compartment, Plumas National Forest 1043 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
  CHSC107153  Festuca myuros L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10379 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Along an old roadbed . 750 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
  CHSC44567  Festuca occidentalis Lowell Ahart 1979-6-25 1938 Yuba About 1 mile south of Challenge. 640 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
  UCD66499  Festuca subuliflora W. R. Powell 1966-5-19 1300 Yuba 5 1/2 miles s. e. Challenge 609 Comment
  SEINET7042641  Filago gallica A. G. Vestal 1963-5-7 s.n. Yuba 5.2 miles southwest of Bangor. Loma Rica quadrangle UTM Zone 10, 632125mE, 4355120mN. 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
  CHSC33580  Fragaria vesca M. S. Taylor 1981-4-22 3554 Yuba E side of Empire Rd, ca. 0.5 mi s of its jct with Laporte Rd, ca. 1 mi sw of Woodleaf. 975 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-BC53663  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-BC53666  Frangula californica subsp. tomentella Carl B. Wolf 1935-8-1 7564 Yuba along the Yuba River, near bridge on the Browns Valley - Smartsville Road, Sierra Nevada Foothills 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
  LA207667  Frangula californica subsp. tomentella C. B. Wolf; 1927-11-5 1447 Yuba Browns Valley to Smartsville Road, 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
  UCD112769  Frangula californica subsp. tomentella D. H. Hartmann 1941-10-11 s.n. Yuba 2 miles west of Smartsville. Comment
  UCD112791  Frangula californica subsp. tomentella W. R. Powell 1968-5-24 1547 a Yuba at C. D. F. fire station in Brownsville. 649 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
  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
  SBBG50631  Frangula rubra subsp. obtusissima D. Youngberg 1968-5-5 1017 Yuba ca. 1 mi S of Camptonville on St Hwy 49 Comment
  CAS-BOT-BC55739  Frangula rubra subsp. rubra Lowell Ahart 1976-5-6 s.n. Yuba Near the Brownsville Dump, Brownsville 457 Comment
  CAS-BOT-BC205976  Fremontodendron californicum Wayne Roderick 1981-5-24 s.n. Yuba Near Dobbins Comment
  CHSC89019  Fremontodendron californicum L. Hanson 1984-5-21 243 Yuba Plumas National Forest. Brownsville Dump. 457 Comment
  UCD73922  Fremontodendron californicum G. Ledyard Stebbins 1966-5-22 6417 Yuba Dobbins Dump. Comment
  HSC86889  Fremontodendron decumbens J. D. Jokerst, L. Ahart 1984-3-20 1945 Yuba S of Brownsville dump, E of Ponderosa Way 100 meters, 0.65 mi. N of junction with La Porte Rd. Comment
  CAS-BOT-BC136095  Fritillaria affinis Volney Rattan 1880-1-1 s.n. Yuba Brownsville Comment
  CHSC13474  Fritillaria eastwoodiae J. H. Sneed 1972-4-25 2 Yuba Found near shoulder of Forbestown road leading to Woodleaf, about 3 mi from Forbestown. 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
  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
  SJSU8741  Fritillaria micrantha N. A. Hopkins 1980-4-13 968 Yuba 40' above McCabe Cr c. 3 airline miles W of Forbestown 548 Comment
  SBBG1013  Fritillaria recurva H. and M. Dearing 1939-5-6 3290 Yuba near Brownsville 609 Comment
  UCD139681  Fritillaria recurva Kathleen Keliher 1975-5-15 111 Yuba 10 yards above roadside of Peterson Ridge Road, 1 mile from Oregon House Road. 762 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
  CHSC78165  Galium murale Lowell Ahart 2000-5-25 8395 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
  UCR169021  Galium parisiense David Charlton 2005-5-16 8008 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
  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
  RSA726440  Galium sparsiflorum subsp. glabrius L. Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14499 Yuba About 1 mile (air) east of Clipper Mills. 1016 Comment
  UCD82293  Galium trifidum subsp. subbiflorum Robin McMaster 1973-6-24 504 Yuba Oregon Creek Campground. Comment
  CHSC43327  Garrya fremontii Lowell Ahart 1976-4-15 1076 Yuba About 2 miles west of Brownsville, near the Brownsville Dump. 457 Comment
  CHSC84142  Gastridium phleoides Lowell Ahart 2003-6-29 10319 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
  CHSC97447  Gastridium phleoides 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
  CDA8341  Gastridium phleoides D. Wilson 2008-6-3 PDR# 147086 Yuba Oregon House, 9448 Rice s Texas Hill Rd. near Tehama Way. 0 Comment
  CHSC97119  Gaultheria ovatifolia Lowell Ahart 2007-8-7 14425 Yuba South of Hampshire Creek Meadow, graded edges of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  CDA43461  Gaura drummondii E. Storm 2015-9-16 PDR# 580 P06131314 Yuba Marysville; C Street. 0 Comment
  CHSC97476  Geranium dissectum Lowell Ahart 2007-5-14 13887 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
  UCR231325  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 2011-5-6 17203 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
  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
  UCD103396  Geranium dissectum Barbara Yungert 1974-4-25 80 Yuba Sierra Foothill Field Station. Near Four Wheel Drive Road, SC-14 project area. 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
  SEINET12335244  Gilia capitata F. H. Utech 1990-1 90 -862 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  UCR195173  Gilia capitata subsp. pedemontana George K. Helmkamp, E. A. Helmkamp 2007-5-26 12144 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
  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
  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
  CHSC97481  Glyceria declinata Lowell Ahart 2007-5-12 13824 Yuba In the scraped swale, about 20 yards northwest of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  UCD66768  Glyceria declinata John F. Williams 1984-3-1 Yuba Yuba County. Comment
  CHSC27057  Glyceria occidentalis Lowell Ahart 1978-4-2 Yuba 2 mi ne of Marysville. Found along the edges of rice levees on the Sam Shintaffer Farm. 30 Comment
  CAS-BOT-BC303822  Gnaphalium John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54073 Yuba 1.4 miles SW of Bullards Bar Dam on road to Challenge 609 Comment
  UCD135096  Gnaphalium luteoalbum Barbara Yungert 1974-5-9 145 Yuba south of road, SC-14 project area, Sierra Foothill Field Station. 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
  CHSC83035  Gnaphalium palustre Lowell Ahart 2002-10-9 9952 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
  JEPS103371  Gnaphalium palustre Lowell Ahart 2002-10-9 9952 Yuba Along Lost Creek, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 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
  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
  CHSC115895  Grindelia hirsutula var. davyi L. P. Janeway 2015-6-29 11787 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
  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
  HSC100770  Hainardia cylindrica Lowell Ahart 2007-5-12 13825 Yuba 13 (air) mi. NE of Marysville, ~400 yd. N of Fruitland Rd., ~50 yd. N of second power tower and ~30 ft. E of culvert and 28 Comment
  RSA726545  Hainardia cylindrica L. Ahart 2007-5-12 13825 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  SEINET11836554  Haplopappus arborescens Unknown 1975-1 987 Yuba near Bullards Bar Dam 610 Comment
  CHSC110462  Hastingsia alba L. P. Janeway 2013-7-24 11187 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
  CHSC68468  Hedypnois cretica Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7724 Yuba On the bank of the Browns Valley Water Ditch, 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. 198 Comment
  CHSC96495  Hedypnois cretica Lowell Ahart 2007-4-17 13680 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
  UCD33243  Hedypnois cretica Beecher Crampton 1967-5-17 7943 Yuba 5 miles east of Brown's Valley, sierra foothill range field station. Comment
  CAS-BOT-BC306332  Hedypnois cretica W. P. Vestal; A. G. Vestal 1947-4-30 s.n. Yuba About 5.1 miles west of Smartsville 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
  CAS-BOT-BC306335  Hedypnois cretica Gordon H. True 1963-4-17 1165 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Hwy. 30 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
  UCD131699  Hedypnois cretica Beecher Crampton 1957-6-5 4130 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  JEPS113095  Hedypnois rhagadioloides Lowell Ahart 2007-4-17 13680 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
  JEPS118299  Hedypnois rhagadioloides 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
  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
  SBBG8399  Helianthella californica H. and M. Dearing 1939-5-8 3300 Yuba near Camptonville Comment
  CDA7043  Hemizonia fitchii A. C. Browne 1951-5-15 Yuba Marysville. 0 Comment
  SBBG117339  Hesperocyparis macnabiana B. Crampton 1972-2-14 8769 Yuba ca. 1.5 mi NNE of Oregon House Comment
  SD40674  Hesperocyparis macnabiana Carl B. Wolf, E. R. Johnson 1934-10-3 Yuba Sierra Nevada Foothills, Texas Hill, about 2 miles west of Dobbins 550 Comment
  CHSC47433  Hesperolinon micranthum Lowell Ahart 1976-5-27 1132 Yuba Along Ponderosa Way, near the Brownsville Dump, south-west of Brownsville. 548 Comment
  CHSC76315  Heteranthera limosa Lowell Ahart 1999-9-17 8240 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
  CHSC76316  Heteranthera rotundifolia Lowell Ahart 1999-9-17 8241 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
  JEPS95796  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
  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
  UC726312  Heterotheca grandiflora A. A. Heller 1924-10-25 13833 Yuba Wheatland 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
  CAS-BOT-BC420454  Heuchera micrantha var. erubescens Rimo Bacigalupi 1927-7-2 1586 Yuba highway to Downceville about 8 miles n.e. of Comptonville 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
  CHSC41147  Hieracium scouleri J. D. Jokerst 1984-7-5 2083 Yuba On crest of spur ridge. N of the junction of N Fork Yuba River and Deadwood Creek. 701 Comment
  RSA0038272  Hierochloe occidentalis J. M. Grant 1930-05 s.n. Yuba Marysville. Comment
  CAS-BOT-BC55318  Hirschfeldia incana Lowell Ahart 1974-5-1 s.n. Yuba About 5 miles east of Loma Rica. 400 Comment
  CAS-BOT-BC55319  Hirschfeldia incana Lowell Ahart 1981-6-13 2855 Yuba Near McGinn Hill, Loma Rica. 300 Comment
  SEINET3449379  Hoita orbicularis Unknown 2003-7-6 10354 Yuba Dobbins, Dobbins, about 5 air miles north, east of the power line, about 50 yards west of Fountain Hill Road 830 Comment
  JEPS113805  Holcus lanatus Lowell Ahart 2007-6-22 14220 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
  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
  UCR195152  Holcus lanatus George K. Helmkamp, E. A. Helmkamp 2007-5-26 12137 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
  UC1128011  Holodiscus discolor G. Burks 1933-7-26 13 Yuba 1 mi s of Camptonville (Tahoe National Forest); Tahoe National Forest 822 Comment
  CAS-BOT-BC311750  Holozonia filipes Lewis S. Rose 1969-6-26 69060 Yuba 5 mi. s. of Smartville, Camp Beale Road 182 Comment
  JEPS59966  Holozonia filipes Lewis S. Rose 1969-6-26 69060 Yuba 5 mi s Smartville (Camp Beale Road) 182 Comment
  CAS-BOT-BC289260  Hordeum brachyantherum Pat Morgan 1981-5-17 115 Yuba Jct. Hwy. 49 & Yuba Ct. Rd. E21 Comment
  UCD33667  Hordeum brachyantherum subsp. brachyantherum Beecher Crampton 1971-6-18 8740 Yuba Sierra Foothill Range Field Station. Ca. 6.5 miles E of Browns Valley, E of headquarters. Comment
  UCD85375  Hordeum brachyantherum subsp. brachyantherum Beecher Crampton 1971-6-18 8740 Yuba Sierra Foothill Range Field Station. Ca. 6 miles E of Browns Valley. 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
  UCD85831  Hordeum marinum subsp. gussoneanum Beecher Crampton 1957-6-5 4129 Yuba 2.6 miles NE of Brown's Valley P.O. 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
  UCD86150  Hordeum murinum subsp. glaucum Beecher Crampton 1962-4-17 6172 Yuba Ca. 2 miles south of Marysville. Comment
  UCD86154  Hordeum murinum subsp. leporinum Beecher Crampton 1962-4-24 6250 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCD80560  Hordeum murinum subsp. murinum CNPS SN Foothill Team 2005-3-17 SNFN 0019 c Yuba CDFG Spenceville Wildlife Area. From CA Highway 20 east, right on Smartville Road to Spenceville Wildlife Area. Plot is accessible from 1st Fish and Game gate on E side of Spenceville Road, Horsetrail (N/S). Location is ca. 2/3 mile along horse trail, then SW between trail and Smartville Road. 195 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
  CAS-BOT-BC144066  Horkelia parryi Gladys L. Smith 1976-6-7 4617 Yuba About 15 miles southwest of La Porte 1524 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
  CHSC115286  Horkelia tridentata var. tridentata Lowell Ahart 2015-4-30 20126 Yuba Open forest, on the north side of the gravel road, about 30 yards east of the gate, about 3/4 mile (air) southeast of Woodleaf. 948 Comment
  JEPS123872  Horkelia tridentata var. tridentata Lowell Ahart 2015-4-30 20126 Yuba About 3/4 mile (air) southeast of Woodleaf. Comment
  CAS-BOT-BC540028  Horkelia tridentata var. tridentata Peter H. Raven 1953-5-9 5472 Yuba 1 mile from Brownville on road to Challenge Comment
  NY15467  Hosackia incana J. M. Bigelow 1853-1 s.n. Yuba South Yuba Comment
  UCD106125  Hosackia oblongifolia R. O. Hanes 1991-5-21 14 Yuba Hornswoggle Ck area. Tahoe Forest. 682 Comment
  CHSC63249  Hosackia pinnata Lowell Ahart 1994-6-5 7305 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
  UCD35870  Hosackia pinnata Beecher Crampton 1965-6-17 7368 Yuba ca. 0.75 mile north of Stanfield Hill, Willow Glen Creek. 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
  UC1419826  Hydrilla verticillata T. C. Fuller, G. D. Barbe 1976-11-1 2231 Yuba Marysville, se edge of (freshwater) Ellis Lake, Ninth and B Streets Ellis Lake; Marysville, Ellis Lake Comment
  CDA43046  Hydrilla verticillata David Kratville 2014-9-9 s.n. Yuba Trantham property, Oregon House. 0 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
  CHSC97121  Hypericum anagalloides Lowell Ahart 2007-8-7 14407 Yuba Hampshire Creek Meadow, about 30 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS98496  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
  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
  SEINET3450954  Hypericum anagalloides Unknown 2003-7-6 10350 Yuba Dobbins, Dobbins, about 5 air miles north, east of the power line, about 50 yards west of Fountain Hill Road 830 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
  CHSC112962  Hypericum concinnum L. P. Janeway 2014-7-2 11434 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
  UC1122091  Hypericum concinnum M. A. Elvin 1933-7-6 40 Yuba 2 1/2 mi. w. Bridgeport; Smartsville Quad. Comment
  UCD80234  Hypericum concinnum CNPS SN Foothill Team 2005-6-1 SNNR 0126 Yuba BLM, Ponderosa Landfill. 711 Comment
  CDA36536  Hypericum concinnum Crane 42197 Yuba Marysville 0 Comment
  SEINET3449128  Hypericum perforatum Unknown 2003-7-6 10352 Yuba Dobbins, Dobbins, about 5 air miles north, east of the power line, about 50 yards west of Fountain Hill Road 830 Comment
  UCR567  Hypericum perforatum Frank C. Vasek 1955-1 272 Yuba Sierra Nevada Mountains, north fork of Yuba River 915 Comment
  CAS-BOT-BC401216  Hypericum perforatum G. Earle Kelley 1920-10-31 s.n. Yuba Los Verjils Comment
  CAS-BOT-BC312913  Hypochaeris glabra Gordon H. True 1963-4-17 1167 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Hwy. 30 Comment
  CAS-BOT-BC133614  Iris hartwegii Barbara T. Keller 1975-6-10 1508 Yuba Challenge Experimental Forest along La Porte Road near Challenge 762 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
  CAS-BOT-BC133617  Iris hartwegii Mrs. Martin Goerges 1953-6-24 s.n. Yuba Lake Vera, North Fork, Yuba River 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
  SJSU9895  Iris tenuissima J. B. Willis Jr. 1969-4-19 42 Yuba Marysville Rd, 1 mi W of Dobbins 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
  CAS-BOT-BC69897  Isoetes nuttallii Alice Eastwood 1921-5-22 10527 Yuba Los Vergils. Comment
  CAS-BOT-BC69899  Isoetes nuttallii Alice Eastwood 1921-5-22 10527 Yuba Los Vergils. Comment
  SBBG119955  Isoetes nuttallii L. Ahart 2004-4-27 10750 Yuba ca. 0.5 air mi SE of Woodleaf 950 Comment
  CAS-BOT-BC69840  Isoetes orcuttii Gordon H. True; J. T. Howell 1967-6-13 3551 Yuba Ca. 5 mi. e. of Wheatland and 1 mi. n. of Bear River. 54 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
  CAS-BOT-BC112641  Isolepis setacea Lowell Ahart 1980-6-19 2394 Yuba 3 miles SE of Challenge. 800 Comment
  SD130997  Isolepis setacea Lowell Ahart 1980-6-19 2394 Yuba 3 miles southeast of Challenge 800 Comment
  UCD49884  Isolepis setacea Beecher Crampton 1966-6-14 7752 Yuba 1 mile east of Brownsville. 731 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
  SBBG121206  Jensia rammii L. Ahart 2007-5-12 13772 Yuba ca. 300 yards N of Fruitland Rd, ca. 13 mi NE of Marysville Comment
  UCD38714  Jensia rammii Beecher Crampton 1957-6-5 4154 Yuba 1.3 miles east Oregon House Store. Comment
  UCR262433  Juglans californica var. hindsii George K. Helmkamp, E. A. Helmkamp 2009-9-5 15600 Yuba Sacramento Valley, Grasshopper Slough along CA-65, c. 1 mile NW of central Wheatland 29 Comment
  CHSC83065  Juncus acuminatus Lowell Ahart 2002-10-9 9955 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
  CHSC96931  Juncus acuminatus Lowell Ahart 2007-6-22 14215 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
  JEPS103550  Juncus acuminatus Lowell Ahart 2002-10-9 9955 Yuba Along 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
  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
  JEPS118341  Juncus arcticus var. balticus Lowell Ahart 2011-5-30 17358 Yuba About 20 yards north of the cross fence, on the west side of the fence along Fruitland Road, about 41/2 miles (air) southwest of Loma Rica 34 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
  JEPS104264  Juncus articulatus Lowell Ahart 2003-7-2 10345 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
  SEINET3450943  Juncus articulatus Unknown 2003-7-2 10345 Yuba Dobbins, 3 air miles northeast, 0.5 miles north of Fountain House Hill, about 3 miles south of Oregon Hill Road, on the west side of Fountain Hill Road. 840 Comment
  CHSC116334  Juncus balticus subsp. ater Lowell Ahart 2015-11-19 20674 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
  HSC13984  Juncus balticus subsp. ater T. F. Newman 1964-4-12 64 Yuba 9 mi. N of Marysville on Hwy. (alternate) 40, 1 mi. E, Feather River Comment
  CHSC113184  Juncus bufonius var. bufonius Lowell Ahart 2013-11-30 19315 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
  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
  CHSC97635  Juncus bufonius var. bufonius Lowell Ahart 2007-5-12 13818 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
  JEPS113531  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
  UCR231326  Juncus bufonius var. bufonius George K. Helmkamp, E. A. Helmkamp 2011-5-6 17202 Yuba East edge of Sacramento Valley, Spenceville Road, 4.2 miles northwest of Wheatland 55 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
  CDA2698  Juncus capitatus J. T. Howell, G. H. True 1967-6-13 3574 Yuba Camp Far West Reservoir, on Bear River east of Wheatland. Comment
  CHSC47544  Juncus covillei Lowell Ahart 1980-8-12 2546 Yuba On a large gravel bar that is formed from a debris dam across Slate Creek, a little west of where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  HSC98444  Juncus covillei L. Ahart, L. P. Janeway, L. Hanson 2007-7-13 14294 Yuba S side of Hampshire Creek, E of dam, 100 yds. E of Forest Rd., 1 mi. E of Clipper Mills 1021 Comment
  UC1254611  Juncus covillei Beecher Crampton 1966-6-14 7759 Yuba 1 mi e Brownsville (La Porte Road) Comment
  UCR118906  Juncus covillei Beecher Crampton 1966-6-14 7759 Yuba Central Sierra Nevada foothills, 1 Mile east of Brownsville on La Porte Road. 732 Comment
  RSA653951  Juncus covillei Beecher Crampton 1966-6-14 7759 Yuba 1 mile east of Brownsville on La Porte road. 732 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
  CHSC83440  Juncus cyperoides Virginia Dains 1996-7-30 Yuba East of forest road 20N25 in a man-made meadow/marsh. One location along the easternmost channel of Hampshire Creek. 1021 Comment
  CHSC97457  Juncus cyperoides Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-9-18 14496 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. 1015 Comment
  CHSC97460  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
  UCR259341  Juncus cyperoides Glenn L. Clifton 2001-8-20 37290 Yuba Hampshire Creek 1027 Comment
  CHSC84203  Juncus dubius Lowell Ahart 2003-7-2 10346 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
  SEINET3450944  Juncus dubius Unknown 2003-7-2 10346 Yuba Dobbins, Dobbins, about 3 air miles northeast, about 0.5 miles north of Fountain Hill Road, about 3 miles south of Oregon Hill Road, west side of Fountain Hill road 840 Comment
  CHSC96868  Juncus effusus subsp. effusus Lowell Ahart 2007-6-30 14227 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
  CHSC96980  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
  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
  JEPS104445  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
  JEPS113831  Juncus effusus subsp. pacificus Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14300 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
  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
  JEPS94353  Juncus ensifolius Lowell Ahart 1997-8-30 7878 Yuba about 1 air mi s of Woodleaf (on w side of the dirt road, near a road culvert) 944 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
  UCR179303  Juncus ensifolius George K. Helmkamp, E. A. Helmkamp 2006-10-10 11527 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
  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
  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
  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
  CHSC116211  Juncus orthophyllus Lowell Ahart 2015-6-16 20245 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
  CHSC78331  Juncus orthophyllus Lowell Ahart 2000-6-23 8504 A Yuba Bog in a small meadow, 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
  JEPS98334  Juncus orthophyllus Lowell Ahart 2000-6-23 8504 Yuba 3 mi NE of Strawberry Valley (W side of a dirt road, 100 yds E of the meadow along La Porte Road, 100 yds N of Scales Road) 1219 Comment
  JEPS98336  Juncus orthophyllus Lowell Ahart 2000-6-23 8504 A Yuba 3 mi NE of Strawberry Valley (bog in a small meadow, 200 yds E of the meadow along La Porte Road, 50 yds N of Scales Road) 1219 Comment
  JEPS113903  Juncus oxymeris Stephanie Chen 2007-7-17 Yuba Northern Sierra Nevada Foothills; Lower slope on W side of Browns Valley Ridge, about 1/2 mi E of Loma Rica Road and about 3 1/4 mi SW of Loma Rica. 59 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
  CHSC83032  Juncus tenuis Lowell Ahart 2002-10-9 9951 Yuba Area east 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
  SBBG121294  Juncus tenuis L. Ahart 2007-8-7 14428 Yuba S of Hampshire Crk Meadow, ca. 1 mi E of Clipper Mills 1021 Comment
  JEPS103250  Juncus usitatus Lowell Ahart 2002-10-8 9947 Yuba N of Camp Far West Reservoir (300 yd SE of intersection of Camp Far West Road and Long Ravine Rd) 121 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
  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
  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
  CHSC97775  Lactuca serriola Lowell Ahart 2007-11-1 14546 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
  JEPS122455  Lactuca serriola L. P. Janeway 2014-11-6 11581 Yuba Northern High Sierra Nevada. Plumas National Forest; along Oregon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km north-west of Summit Hill; slope above Burnt Bridge Creek. Quad: Challenge 7.5'. Comment
  UCR201939  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2008-10-6 14202 Yuba Sacramento Valley, junction of CA-65 and Ostrom No. 3 Road, southeast of Olivehurst 24 Comment
  CDA43103  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. Comment
  CHSC112370  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
  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
  CHSC112860  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. 850 Comment
  JEPS121799  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. Comment
  CAS-BOT-BC341289  Lagophylla glandulosa Alice Eastwood 1921-5-22 10533 Yuba Los Vergils Comment
  UCD133615  Lagophylla glandulosa C. A. Raguse 1974-10-26 s.n. Yuba Sierra Foothill Range Field Station. Comment
  UCD80078  Lagophylla ramosissima CNPS SN Foothill Team 2005-7-5 SNNR 0469 Yuba CDFG Daugherty Hill Wildlife Area. 376 Comment
  UCD125090  Lamium amplexicaule Kathleen Keliher 1975-5-15 109 Yuba Across from mountain view property, Cleaveland Road, 3 miles east of Camptonville. 914 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
  CAS-BOT-BC352769  Lasthenia fremontii Annetta Carter 1940-4-21 1528 Yuba 4.3 miles SE of Marysville on road to Spenceville 30 Comment
  CAS-BOT-BC352768  Lasthenia fremontii Gordon H. True 1966-4-7 2678 Yuba About 5 miles E of Wheatland and 1 mile N of Bear River 54 Comment
  SEINET7042616  Lasthenia fremontii A. G. Vestal 1963-5-7 s.n. Yuba Ca 3.5 miles north of Wheatland. Wheatland quadrangle UTM Zone 10, 636544mE, 4323933mN. Comment
  UC718224  Lasthenia glaberrima Carl B. Wolf 1937-5-18 8735 Yuba 2 mi s Marysville; Sacramento Valley 18 Comment
  UCR47660  Lasthenia glaberrima C. B. Wolf 1937-5-18 08735 Yuba SacramenoValley, 2 mi south of Marysville 18 Comment
  RSA21665  Lasthenia glaberrima C. B. Wolf 1937-5-18 8735 Yuba SacramenoValley, 2 mi S 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
  JEPS121743  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; 3.5 air-km south-southeast of Challenge. Comment
  UCD106387  Lathyrus nevadensis Kathleen Keliher 1975-5-15 112 Yuba Along Peterson Road, 1 mile from Oregon House Road. Comment
  SEINET956200  Lathyrus sulphureus Carl B. Wolf 1937-1 8636 Yuba Sierra nevada foothills, 2 7/10 mi. Below Stanfield Hill on Road to Browns Valley. 183 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
  UCR196919  Lathyrus sulphureus George K. Helmkamp, E. A. Helmkamp 2008-5-20 13491 Yuba Foothills, northern Sierra Nevada Mountains, Camptonville, at the junction of Henness Pass Road and CA-49 823 Comment
  JEPS119473  Layia chrysanthemoides George K. Helmkamp with E. A. Helmkamp 2011-4-10 17165 Yuba Sacramento Valley: along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland 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
  JEPS98933  Layia fremontii Bruce G. Baldwin 1988-3-21 687 Yuba 3.3 mi W of jct with County Road E21 (road to Collins Lake, Bullards Bar Reservoir) along Hwy 20 Comment
  SEINET7042577  Layia fremontii A. G. Vestal 1963-4-30 s.n. Yuba 3.5 miles northwest of Wheatland. Wheatland quadrangle UTM Zone 10, 631043mN, 4323298mN. Comment
  SJSU11676  Layia fremontii J. B. Willis Jr. 1969-4-19 Yuba 7 mi E of Marysville on Hammonton-Smartville Rd Comment
  CAS-BOT-BC274349  Leersia oryzoides Lowell Ahart 1977-8-31 1543 Yuba 2 miles north-east of Marysville 30 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
  SEINET13710836  Leersia oryzoides Lowell William Ahart, Lowell William Ahart 1999-1 8239 Yuba 5 Mi NE of Marysville Comment
  UCD103532  Legenere limosa Ellen Tatum Pimentel 2010-5-13 s.n. Yuba On Beale Air Force Base, north of North Beale Road (~0.9 mile as the crow flies) and west of Reed's Creek, in what appears to be an old ox-bow of Reed's Creek. CNDDB occurrence #51. 24 Comment
  CHSC116271  Leontodon saxatilis subsp. longirostris Lowell Ahart 2015-11-19 20669 Yuba 100 yards or more north of spillway area, below high water line, west of Lake Francis, about 1 1/2 miles south of Dobbins. 512 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
  CHSC97691  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
  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
  JEPS113390  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 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
  UC1124465  Lepechinia calycina M. A. Elvin 1933-7-1 36 Yuba 1 1/2 mi S of Virginia Ranch 457 Comment
  CHSC43652  Lepidium campestre Lowell Ahart 1979-6-3 1922 Yuba About 1 mile south of Challenge. 640 Comment
  UCD82842  Lepidium campestre Robin McMaster 1973-6-24 482 Yuba Oregon Creek Campground. Comment
  CHSC76272  Lepidium didymum Lowell Ahart 1999-9-17 8250 Yuba On the edge of a dirt road, Sam Shintaffer Farm, south of Woodruff Lane, south of Mathews Road, about 1/4 mile south of Sam Shintaffer's rice dryer, about 4 1/2 miles (air) northeast of Marysville. 24 Comment
  UCD115459  Lepidium draba Michael A. Vincent 1999-6-12 8637 Yuba Along canal parallel to Rt. 20 at junction with Feather River Boulevard, 0.4 mile north of Sutter county line, Marysville. 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
  UCD115773  Lepidium nitidum Barbara Yungert 1974-5-3 111 Yuba Along Road 4, K 1-11 project area, Sierra Foothill Field Station. 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
  CHSC68474  Lepidium strictum Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7736 Yuba Along a dirt road, south of Dry Creek, about 1 mile east of Sfcott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 137 Comment
  CHSC97242  Leptochloa fusca subsp. fascicularis Lowell Ahart 2007-6-22 14218 Yuba Bottom of a new ditch, near a new road pad, about 350 yards west of the power tower, about 13 miles (air) northeast of Marysville. 28 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
  UCD118637  Leptosiphon bicolor Barbara Yungert 1974-4-16 43 Yuba Sierra Foothill Field Station. Comment
  CDA40067  Leptosiphon filipes Yuba County School Children 1930-4-12 s.n. Yuba [No further data.] 0 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
  CDA8198  Lessingia nemaclada L. Ahart 2002-10-1 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. 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
  UCD33715  Lessingia virgata Beecher Crampton 1972-6-20 8816 Yuba ca. 3 miles S.W. of Brown's Valley. Comment
  UCD33887  Lessingia virgata Beecher Crampton 1974-10-11 9094 Yuba 3 miles S.W. of Brown's Valley along Hwy. 20. Comment
  CAS-BOT-BC342057  Lessingia virgata Beecher Crampton 1974-10-11 9094 Yuba 3 miles S.W. of Brown's Valley along Hwy. 20 Comment
  UC1131555  Leymus cinereus F. W. Embree 1934-4-30 Yuba 4 mi ene Marysville B.M.; Marysville Quadrangle Comment
  CAS-BOT-BC272210  Leymus triticoides Lowell Ahart 1978-9-24 s.n. Yuba Near South Honcut Creek, near the bridge across South Honcut Creek about 3 mi. se of Honcut 45 Comment
  CAS-BOT-BC130527  Lilium Volney Rattan s.n. Yuba Little Fellow Comment
  UC984808  Lilium humboldtii A. M. Vollmer and L. Beane Jul 1951 187 Yuba Brownsville Comment
  CAS-BOT-BC130620  Lilium humboldtii A. M. Vollmer; L. Beane 1951-7-1 187 Yuba Brownsville Comment
  CAS-BOT-BC130621  Lilium humboldtii A. M. Vollmer; L. Beane 1951-7-1 187 Yuba Brownsville 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
  CAS-BOT-BC130869  Lilium pardalinum Anna Cramsie 1933-4-24 s.n. Yuba Smartsville 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
  RSA726963  Limnanthes alba subsp. alba L. Ahart 2007-5-14 13866 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  SJSU10807  Limnanthes douglasii subsp. rosea J. B. Willis Jr. 1969-4-19 46 Yuba 5 mi E of Linda 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
  UC1745669  Limosella acaulis Annetta M. Carter 1940-4-21 1526 Yuba 4.3 mi. SE of Marysville; ; 4.3 mi. SE of Marysville on road to Spenceville. 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
  CDA36806  Linaria dalmatica D. B. Joley 1972-9-15 5 Yuba Railroad at intersection of Hwy 70 and Hwy 65 (east of Marysville). 0 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
  CHSC110337  Linnaea borealis var. longiflora L. P. Janeway 2013-6-20 11147 Yuba Northern High Sierra Nevada. Plumas National Forest; along the narrow overgrown PG and E powerline corridor 1.0 km east of Sly Creek Dam, 0.2 km south of the Sly Creek arm of Sly Creek Reservoir. 1106 Comment
  JEPS127221  Linnaea borealis var. longiflora Lowell Ahart 2016-9-9 21344 Yuba On east side of road 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
  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
  UCD33814  Linum usitatissimum Beecher Crampton 1973-6-22 8956 Yuba Yuba County, ca. 3 miles east of Brown's Valley on Peoria road. Comment
  UCD150657  Linum usitatissimum Collector unknown 1976-5-15 205 Yuba 0.9 mi S of Camptonville on Hwy 49. 762 Comment
  CAS-BOT-BC36024  Lithocarpus densiflorus var. densiflorus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54076 Yuba About 2 miles northeast of Dobbins on Oregon Hill Road 701 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
  SEINET9330134  Lithocarpus densiflorus var. densiflorus Unknown 1981-6-22 3039 Yuba Oregon Hill Road, 0.1 mi N of Marysville Road, SW of Bullards Bar Dam. J.T. Howell #54076. Comment
  CAS-BOT-BC36548  Lithocarpus densiflorus var. echinoides John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54086 Yuba 3.6 miles northeast of Strawberry Valley on La Porte-Quincy road 1280 Comment
  CDA14575  Lithocarpus densiflorus var. echinoides G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3056 Yuba Sierra Nevada; La Porte _ Quincy Road 3.6 miles northeast of Strawberry Valley at the Plumas county line. 0 Comment
  CHSC11374  Lithocarpus densiflorus var. echinoides Lowell Ahart 1966-8-12 Yuba Near Challenge. 609 Comment
  UCD81505  Lithophragma affine Christopher Michael Bronny 2009-4-1 17 Yuba Oat Hills' area of Sierra Nevada foothills. 174 Comment
  JEPS107403  Lithophragma bolanderi Lowell Ahart 2005-3-11 11612 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
  SEINET12221794  Lithophragma heterophyllum F. H. Utech 1990-6-5 90 -865 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  UCD102728  Lithophragma heterophyllum Kathleen Keliher 1975-4-6 55 Yuba Below Englebright Reservoir, Sierra Foothill Field Station. 152 Comment
  CAS-BOT-BC325967  Lithospermum californicum Lowell Ahart 1980-6-19 2410 Yuba 4 miles E of Challenge. 900 Comment
  CAS-BOT-BC325968  Lithospermum californicum Lowell Ahart 1979-6-25 s.n. Yuba 2 miles E of Challenge. 700 Comment
  CAS-BOT-BC325969  Lithospermum californicum Charles Williams 1981-4-1 s.n. Yuba Near Brownsville. 609 Comment
  CHSC108210  Lolium multiflorum Lowell Ahart 2011-6-7 17425 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
  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
  JEPS113721  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
  UCD66188  Lolium multiflorum Barbara Yungert 1974-5-1 G- 3 Yuba West of road near SC-12 fence line, SC-14 project area, Sierra Foothill Field Station. Comment
  UCD66222  Lolium multiflorum Beecher Crampton 1962-4-24 6262 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. 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
  CDA2249  Lolium temulentum T. C. Fuller 1971-6-13 19888 Yuba Sierra Nevada; East shore of Lake Francis, Lake Francis Road, 1 miles southeast of Dobbins. Comment
  CHSC97664  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
  CHSC42095  Lomatium macrocarpum Lowell Ahart 1986-5-20 5276 Yuba Along Abernathy Road, about 2 miles west of Woodleaf. 914 Comment
  RSA22243  Lomatium marginatum L. S. Rose 1939-6-6 39223 Yuba Brownsville 686 Comment
  CHSC96405  Lomatium marginatum var. marginatum L. P. Janeway 2006-5-24 8612 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
  JEPS94323  Lomatium marginatum var. marginatum Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7734 Yuba About 1 mile east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 121 Comment
  JEPS14509  Lomatium nudicaule Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1956-4-19 5620 Yuba 0.5 mi. n. Dobbins Ranger Station (CA State Dept. of Forestry) (along rd. from Oregon House to Dobbins) 548 Comment
  CHSC59490  Lomatium utriculatum H. E. Mac Lennan 1992-4-15 19 Yuba 20 air miles se of Oroville. 518 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
  JEPS120537  Lonicera involucrata L. P. Janeway, Tim Hanson 2013-4-25 11093 Yuba Northern High Sierra Nevada. Plumas National Forest; 50 m east of Oregon Hill Raod between Burnt Bridge Creek and Little Oregon Creek. Comment
  CHSC97226  Lotus corniculatus Lowell Ahart 2007-6-22 14212 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
  UCD106713  Lotus corniculatus Collector unknown 1942-5-22 s.n. Yuba location unknown. Comment
  UCD106737  Lotus corniculatus Barbara Yungert 1974-5-1 98 Yuba North of Scott Lane, west of barns, opposite SC-5 project area, Sierra Foothill Field Station. 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
  UC1552807  Lotus oblongifolius Frederica Bowcutt 1985-6-8 591 Yuba 1 air mi se Camptonville (and 12 air mi n of Nevada City, along Oregon Creek); Tahoe National Forest, Oregon Creek 762 Comment
  UCR201941  Lotus purshianus var. purshianus George K. Helmkamp, E. A. Helmkamp 2008-10-6 14201 Yuba Sacramento Valley, junction of CA-65 and Ostrom No. 3 Road, southeast of Olivehurst 24 Comment
  UCR206947  Lotus uliginosus George K. Helmkamp, E. A. Helmkamp 2009-5-28 14833 Yuba Sierra Nevada Mountains Foothills, along CA-49, 2.2 miles north of the Camptonville exit 811 Comment
  SEINET7042627  Lotus wrangelianus 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
  CHSC116313  Ludwigia palustris Lowell Ahart 2015-11-19 20672 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
  RSA318943  Lupinus Patricia Wilder 1971-6-23 5210 Yuba Marysville Road, 7.3 miles east of junction with Oregon Hill Road. 610 Comment
  SEINET10544012  Lupinus albicaulis subsp. shastensis Charles Piper Smith 1933-7-20 Smith 33114 Yuba Comment
  CAS-BOT-BC198375  Lupinus albifrons Charles Piper Smith 1949-4-16 49103 Yuba Loma Rica, 4 miles northeast, Loma Rica Bangor Road, Yuba-Butte Bridge Comment
  SEINET10488381  Lupinus albifrons Charles Piper Smith 1948-4-27 Smith 48183 Yuba Junction dobbins and browns valley, brownsville roads. Stanfield hill, 3.4 Miles ne 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-BC196031  Lupinus albifrons var. albifrons Charles Piper Smith 1946-5-2 46261 Yuba Brownsville, 10 miles southwest on Browns Valley Road Comment
  CAS-BOT-BC196032  Lupinus albifrons var. albifrons Charles Piper Smith 1946-5-2 46257 Yuba Brownsville, 7.1 miles southwest on Browns Valley Road 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
  UCD106422  Lupinus andersonii W. R. Powell 1968-5-15 1500 Yuba on Fountain House Road, 2 miles NE of Dobbins. 792 Comment
  OBI83268  Lupinus benthamii Rhanda Riggins 1989-4-26 1624 Yuba Roadside bank, Hwy. 20, 0.6 mi W Yuba River crossing, 0.4 mi E Sicard Flat Rd. Comment
  UCD107040  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
  JEPS107955  Lupinus benthamii var. opimus Lowell Ahart 2005-3-11 11611 Yuba South steep slope of a large rock outcrop, 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 395 Comment
  UC710381  Lupinus bicolor C. P. Smith 1946-5-2 46247 Yuba 7.4 mi sw Hammonton Road Smartville; Smartville - 7.4 mi sw Hammonton Road 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
  UC710403  Lupinus bicolor C. P. Smith 1946-5-2 46258 Yuba 7.1 mi sw Browns Valley Road Brownsville; Brownsville - 7.1 mi sw Browns Valley road Comment
  UCR194908  Lupinus bicolor George K. Helmkamp, E. A. Helmkamp 2007-5-26 12131 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville 802 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
  UCD107333  Lupinus bicolor Barbara Yungert 1974-4-16 46 Yuba Cambell Valley, Sierra Foothill Field Station. Comment
  RSA0118773  Lupinus bicolor subsp. tridentatus Lawrence P. Janeway 2014-5-13 11254 Yuba Northern High Sierra Nevada. Plumas National Forest; along Oregon Hill Road at the hairpin turn above Burnt Bridge Creek and New Bullards Bar Reservoir. 773 Comment
  SEINET12170207  Lupinus latifolius F. H. Utech 1990-6-5 90 -866 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  UCD108127  Lupinus latifolius Kathleen Keliher 1975-5-14 104 Yuba top of hill near Road 4, near Meathook area, L 1-21 project area, Sierra Foothill Field Station. 243 Comment
  CAS-BOT-BC8498  Lupinus latifolius var. viridifolius C. P. Smith 1947-5-21 47316 Yuba Camptonville, about 6 miles S along Hwy 49, 2 miles N of bridge over MIddle Fork Yuba River Comment
  SD236291  Lupinus microcarpus David Charlton 2005-5-16 8000 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. 25 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
  UCD108760  Lupinus microcarpus var. densiflorus Barbara Yungert 1974-4-29 95 Yuba south of picnic area, north of Yuba River, Sierra Foothill Field Station. Comment
  JEPS107406  Lupinus nanus Lowell Ahart 2005-3-11 11619 Yuba Along sides 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
  SEINET1908777  Lupinus nanus G. K. Helmkamp, E. A. Helmkamp 2008-1 13463 Yuba Sierra Nevada Mountains Foothills: along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek (Camptonville 7.5' Q) 466 Comment
  UC710387  Lupinus nanus C. P. Smith 1946-5-2 46255 Yuba 1.4 mi e Browns Valley Comment
  UC710407  Lupinus nanus C. P. Smith 1946-5-2 46253 Yuba Hiway 20, 0.3 mi w Smartville; w of Smartville Comment
  UC710412  Lupinus nanus C. P. Smith 1946-5-2 46251 Yuba Hiway 20, 0.3 mi w Smartville; w of Smartville Comment
  UC710406  Lupinus pachylobus C. P. Smith 1946-5-2 46259 Yuba Browns Valley Road 7.1 mi sw Brownsville; sw of Brownsville Comment
  SEINET10450737  Lupinus pachylobus Smith 1948-4-27 Smith 48180 Yuba Jct. Dobbins and browns valley brownsville roads. Stanfield hill, 3.4 mi ne. Pine forest. Scrub oak undergrowth. Red soil. Comment
  SD50709  Lupinus polyphyllus subsp. superbus Darley F. Howe 1959-8-2 2780 Yuba 1.0 mile west of Yuba Pass 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
  RSA21299  Lupinus vallicola subsp. vallicola Carl B. Wolf 1937-5-13 8644 Yuba Sierra Nevada Foothills, 1 2/10 mi. below Stanfield hill on road to Browns Valley. 274 Comment
  SEINET10490993  Lupinus vallicola subsp. vallicola Smith 1948-4-27 Smith 48184 Yuba Jct dobbins and browns valley--brownsville roads. Stanfield hill, 3.4 mi ne. 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
  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
  HSC104263  Luzula macrantha P. F. Zika 2010-6-22 24980 Yuba Northern Sierra Nevda Highlands; west side of Challenge Cut-off, 2.5 air km NE of Brownsville 755 Comment
  CAS-BOT-BC441310  Luzula macrantha Lowell Ahart 1968-4-21 s.n. Yuba Sierra Nevada: 5 miles SE of Challenge 609 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
  CHSC83062  Lycopus americanus Lowell Ahart 2002-10-8 9942 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
  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
  JEPS113483  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
  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
  JEPS113404  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
  JEPS118089  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
  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
  SEINET7042652  Lythrum hyssopifolia 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
  UCD103077  Lythrum hyssopifolia Barbara Yungert 1974-5-30 186 Yuba Near gate in SC-5 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC344280  Madia elegans David D. Keck 1932-7-1 1609 Yuba 1 mile SE. of Log Cabin Service Station, west of Camptonville 600 Comment
  CAS-BOT-BC344282  Madia elegans David D. Keck 1932-7-1 1609 Yuba 1 mile SE. of Log Cabin Service Station, west of Camptonville 600 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
  UC1535367  Madia exigua Barbara Yungert 1974-5-9 138 Yuba along Road 1, p 1-12 project area, Sierra Foothill Field Station Sierra Foothills Comment
  CAS-BOT-BC344597  Madia exigua Lowell Ahart 1981-6-13 2839 Yuba Sutter Buttes Area. On the northeast side of McGinn Hill, Loma Rica 300 Comment
  CAS-BOT-BC334672  Madia glomerata Lowell Ahart 1980-8-12 2552 Yuba Along Slate Creek, Sierra Nevada 1250 Comment
  CHSC108197  Madia gracilis Lowell 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 miles (by air) northeast of Marysville. 66 Comment
  JEPS118437  Madia gracilis Lowell 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 miles (by air) northeast of Marysville 66 Comment
  SEINET3450907  Madia gracilis Unknown 2003-7-6 10355 Yuba Dobbins, Dobbins, about 5 air miles north, about 30 yards west of Fountain Hill Road 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
  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
  JEPS118045  Madia subspicata Lowell Ahart 2011-6-7 17381 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
  CAS-BOT-BC347374  Malacothrix floccifera Lewis S. Rose 1939-6-7 39244 Yuba N. Fork of Feather River, 3 mi. s. of Pulga 609 Comment
  UCD134398  Malacothrix floccifera Barbara Yungert 1974-4-17 60 Yuba North of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  CHSC76109  Malva parviflora Lowell Ahart 1999-9-5 8199 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
  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
  CHSC90465  Marah fabacea var. agrestis Lowell Ahart 2005-3-11 11602 Yuba In the center 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
  SBBG7441  Marah watsonii H. and M. Dearing 1939-5-8 3302 Yuba near Camptonville Comment
  CHSC51224  Marrubium vulgare Lowell Ahart 1981-6-13 2854 Yuba Growing along the edge of a new gravel road, on the west side of McGinn Hill, east of Loma Rica. 304 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
  UCD35775  Medicago arabica Beecher Crampton 1962-4-24 6288 a Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  CHSC76108  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
  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
  HSC14993  Medicago sativa T. F. Newman 1965-10-9 6554 Yuba Carnes Ranch, 9 mi. N of Marysville on Hwy. 70. Comment
  CAS-BOT-BC271130  Melica aristata Lowell Ahart 1979-6-25 s.n. Yuba 1 mi. S of Challenge 700 Comment
  CHSC100767  Melica californica L. P. Janeway 2008-5-11 9363 Yuba Northern High Sierra Nevada. In the northwestern head of Slapjack Creek; along road 19N34, 1.3 road km woutheast of Challenge-La Porte Road; about 1.2 km south-southeast of Woodleaf. 940 Comment
  UC1254609  Melica californica Beecher Crampton 1967-5-17 7940 Yuba 5 mi e Brown's Valley (Sierra Foothill Range Field Station - UC) Comment
  UCD87250  Melica californica var. nevadensis Beecher Crampton 1965-5-11 7314 Yuba 5 miles east of Brown's Valley; Sierra Foothill Range Field Station. Comment
  CHSC40950  Melica harfordii J. D. Jokerst 1984-7-5 2080 Yuba Canyon of Deadwood Creek between creek and Weed Point. 883 Comment
  UC1153840  Melica harfordii Beecher Crampton 1954-5-10 1850 Yuba 6 mi ne Camptonville (State Hwy 49, canyon of the north fork of the Yuba River) Comment
  JEPS115021  Melilotus albus Lowell Ahart 2007-11-1 14541 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
  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
  CDA40728  Mentha canadensis L. 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. Comment
  JEPS103257  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 SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CHSC25505  Mentha spicata L. Ahart 1977-7-31 1504 Yuba One mile s of Challenge. 700 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
  UCD81497  Micranthes californica Christopher Michael Bronny 2009-4-1 9 Yuba Oat Hills' area of Sierra Nevada foothills. 146 Comment
  CAS-BOT-BC348442  Micropus californicus var. californicus Gordon H. True 1963-4-17 1187 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Hwy. 30 Comment
  CHSC68469  Micropus californicus var. californicus Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7723 Yuba On the bank of the Browns Valley Water Ditch, south of the poor dirt road, south of Dry Creek, about 1 mile east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 182 Comment
  JEPS118294  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
  CAS-BOT-BC348440  Micropus californicus var. californicus L. S. Smith 1932-4-29 2642 Yuba South of Spenceville Road to Sheridan 304 Comment
  UCD134518  Micropus californicus var. californicus Barbara Yungert 1974-4-25 81 Yuba lower SC-14 project area, Sierra Foothill Field Station. Comment
  UCD37877  Microseris acuminata Beecher Crampton 1962-4-24 6301 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California 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
  RSA21295  Microsteris gracilis subsp. humilis C. B. Wolf 1937-5-13 8640 Yuba Sierra Nevada Foothills, 2.7 mi below Stanfield Hill on road to Browns Valley. 183 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
  UCR194906  Mimulus aurantiacus George K. Helmkamp, E. A. Helmkamp 2007-5-26 12129 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville 802 Comment
  CAS-BOT-BC150495  Mimulus aurantiacus var. grandiflorus Mrs. J. E. Cramsie 1923-5-22 s.n. Yuba Smartsville 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
  UCD122353  Mimulus aurantiacus var. grandiflorus Barbara Yungert 1974-5-4 114 Yuba south side of rock pile, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  JEPS88903  Mimulus bicolor Lowell Ahart 1994-6-5 7293 Yuba about 3 air mi e of Forbestown (on n side of Costa Creek, on n side of Forbestown Road); Costa Creek, Forbestown Road 853 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
  UCD122717  Mimulus guttatus Barbara Yungert 1974-4-14 34 Yuba along road 5, outside Meathook area, Sierra Foothill Field Station. Comment
  UCD37885  Mimulus microphyllus Beecher Crampton 1962-4-24 6311 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UC886288  Mimulus moniliformis Lewis S. Rose 1939-6-6 39233 Yuba Strawberry Valley 1219 Comment
  CDA14572  Mimulus moschatus G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3051 Yuba La Porte _ Quincy Road 3.6 miles northeast of Strawberry Valley at the Plumas county line. 1280 Comment
  POM161754  Mimulus moschatus R. C. Bacigalupi 1927-7-2 1587 Yuba Highway to Downieville about 8 mi NE of Camptonville. Comment
  UCD122682  Mimulus nasutus Kathleen Keliher 1975-4-16 56 Yuba Below Englebright Dam, Sierra Foothill Field Station. 152 Comment
  UC1982295  Mimulus tilingii Virginia Moran 2008-9-17 Yuba Collected from Celestial Pond located approximately tem miles (16Km) north of Nevada City in Yuba County. Water from the pond drains in Oregon Creek which drains into the Middle Yuba River. Comment
  CAS-BOT-BC174591  Minuartia californica Gordon H. True 1963-4-17 1175 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Hwy. 30 Comment
  JEPS100262  Moehringia macrophylla Dean W. Taylor 2001-5-9 17635 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  JEPS121317  Mollugo verticillata Lowell Ahart 2013-11-30 19298 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
  CAS-BOT-BC435062  Mollugo verticillata J. T. Howell; Gordon H. True 1969-6-24 5093 Yuba Vineyard Creek ca. 4 miles south of Smartville on Beale AFB Rd. 152 Comment
  CAS-BOT-BC435063  Mollugo verticillata Alice Eastwood 1913-7-3 3409 Yuba Wheatland 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
  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
  LA54221  Monardella sheltonii Carl Epling; 1938-6-16 sn Yuba near Brownsville 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
  JEPS113286  Montia fontana subsp. chondrosperma Lowell Ahart 2007-4-17 13689 Yuba Bottom of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daughtery Hill Wildlife Area, Donovan Hill Management Area, abouit 5 1/2 miles (air) northwest of Loma Rica 292 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
  UCD86997  Muhlenbergia rigens Beecher Crampton 1957-6-5 4144 Yuba 1 mile east of Stanfield Hill. Comment
  HSC79879  Myosotis discolor James Henrickson 1969-5-25 3453 Yuba Ca. 49 mi. NE of Yuba City, 3.7 mi. NE of Nevada-Yuba Co. line along Hwy. 49 793 Comment
  JEPS103502  Najas Lowell Ahart 2002-10-8 9941 a 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
  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
  CDA19013  Najas guadalupensis E. Finley 2000-9-1 PDR 1066500 A Yuba Fellowship-Renaissance Winery, 23 Reservoir, Oregon House. 0 Comment
  CAS-BOT-BC260116  Nassella pulchra Gordon H. True 1963-4-17 1157 Yuba About 3 miles S of Smartville on Beale Air Force Base 213 Comment
  UCD81504  Nassella pulchra Christopher Michael Bronny 2009-4-1 16 Yuba Oat Hills' area of Sierra Nevada foothills. 140 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
  RSA0107825  Navarretia divaricata subsp. divaricata George K. Helmkamp, E. A. Helmkamp 2007-8-29 12832 A Yuba Northern Sierra Nevada Mountains Foothills: along Hwy CA-49, 0.5 mile south of Camptonville. 817 Comment
  UCR189430  Navarretia divaricata subsp. divaricata George K. Helmkamp, E. A. Helmkamp 2007-8-29 12832 A Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 Comment
  UCD48394  Navarretia eriocephala Barbara Yungert 1974-5-31 189 Yuba H-9 project area, Sierra Foothill Field Station, Yuba County, California. Comment
  CHSC44335  Navarretia filicaulis Lowell Ahart 1975-6-25 809 Yuba Near the Brownsville dump, about 1 mile west of Brownsville. 396 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
  RSA123151  Navarretia filicaulis A. E. Wieslander 1933-6-21 255 Yuba 1.5 miles west of Rapps Ranch 457 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
  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
  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
  CDA40265  Navarretia intertexta subsp. intertexta L. Ahart 2002-6-3 9685 Yuba Along a small drainage, in a large open meadow like area, about 140 yards west of where a few people park along Long Ravine Road, about one mile southeast of the intersection of Long Ravine Road and Camp Far West Road, northeast of Camp Far West Reservoir. Comment
  UCD147084  Navarretia intertexta subsp. intertexta Chuck Hughes 2013-5-2 369 Yuba Northwest margin of Camp Far West Reservoir. 97 Comment
  RSA727118  Navarretia leucocephala L. Ahart 2007-5-12 13806 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  SEINET7072979  Navarretia leucocephala 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
  SEINET5906104 Image available Navarretia leucocephala L. S. Rose 1967-1 67125 Yuba 7 mi NE of Wheatland. Comment
  SEINET7042632  Navarretia leucocephala 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
  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
  RSA189460  Navarretia leucocephala subsp. leucocephala L. S. Rose 1967-6-13 67125 Yuba 7 mi. NE of Wheatland. 61 Comment
  JEPS118070  Navarretia pubescens Lowell Ahart 2011-6-7 17406 Yuba Openings in woodlands, about 100 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
  OBI48930  Navarretia pubescens Lewis S. Rose 1939-6-5 39202 Yuba Smartsville 183 Comment
  UC572391  Navarretia pubescens H. S. Yates 1933-5-24 3641 Yuba near Toland Ranch; Smartsville Quad. 121 Comment
  UC856882  Navarretia pubescens Lewis S. Rose 1939-6-5 39202 Yuba Smartsville 182 Comment
  UCD37131  Navarretia pubescens Beecher Crampton 1957-6-5 4117 Yuba 10 miles east of Marysville, along State Highway 20. Comment
  OBI11305  Navarretia pubescens Lewis S. Rose 1967-6-13 67126 Yuba Camp Far West Reservoir. 7 mi NE of Wheatland 122 Comment
  UCD48620  Navarretia pubescens Beecher Crampton 1957-6-5 4131 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  UCD59440  Navarretia pubescens Barbara Yungert 1974-5-21 170 Yuba South of dirt road, east of wire gate, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  CHSC97451  Navarretia tagetina Lowell Ahart 2007-5-12 13808 Yuba On dry bare distrubed 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
  JEPS113397  Navarretia tagetina Lowell Ahart 2007-5-12 13808 Yuba On dry bare distrubed 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
  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
  CHSC59545  Nemophila heterophylla H. E. MacLennan 1992-4-5 14 Yuba 19 air miles se of Oroville. 518 Comment
  CHSC96484  Nemophila heterophylla Lowell Ahart 2007-4-17 13687 Yuba East side 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
  JEPS113100  Nemophila heterophylla Lowell Ahart 2007-4-17 13687 Yuba East side 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
  UC410446  Nemophila heterophylla Alice Eastwood 1930-4-12 17938 Yuba Texas Hill Road 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
  UCR197047  Nemophila heterophylla George K. Helmkamp, E. A. Helmkamp 2008-5-20 13471 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  RSA0043191  Nemophila heterophylla Carl B. Wolf 1937-5-13 8638 Yuba Sierra Nevada Foothills, 2.7 mi below Stanfield Hill on road to Browns Valley. 183 Comment
  SJSU8839  Nemophila heterophylla J. B. Willis Jr. 1969-4-19 Yuba by Marysville Rd, 0.5 mi W of Oregon House P.O. & 7.5 mi W of Dobbins Comment
  CHSC59546  Nemophila maculata H. E. Mac Lennan 1992-4-5 8 Yuba 20 air miles se of Oroville. 502 Comment
  CHSC90478  Nemophila maculata Lowell Ahart 2005-3-11 11622 Yuba On the east side of Los Verjeles Road, about 100 yards north of Loma Rica Road, about 4 miles (air) northeast of Loma Rica. 325 Comment
  SEINET7073621  Nemophila maculata 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
  UCD119911  Nemophila maculata Kathleen Keliher 1975-5-6 95 Yuba 100 feet from duck pond, between two houses, intersection of Frenchtown and New York House Roads. 304 Comment
  CHSC32094  Nemophila menziesii L. Ahart 1973-4-15 208 Yuba On dry edge of rd cut bank, Darby Rd, Bangor. 304 Comment
  JEPS120544  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. Comment
  UCD110239  Notholithocarpus densiflorus Caroline B. Pratt 1977-9-27 s.n. Yuba Woodleaf, along Oroville-Wyandotte Canal. 914 Comment
  UCD110241  Notholithocarpus densiflorus B. F. Smith 1968-9-20 91 Yuba ca. 4 miles southeast of Challenge. 655 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
  CHSC113658  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. 750 Comment
  CHSC93885  Odontostomum hartwegii L. P. Janeway 2006-5-24 8621 Yuba Northern Sierra Nevada Foothills. East side of Ponderosa Way 1.3 km north of La Porte Road and Brownsville. 686 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
  RSA21304  Odontostomum hartwegii Carl B. Wolf 1937-5-13 8649 Yuba Sierra Nevada Foothills, 1.6 miles NW of Stanfield Hill, along fork of south Honcut Creek. 305 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
  UCD139089  Odontostomum hartwegii Barbara Yungert 1974-5-9 139 Yuba east bank of Road 1, Porter Hill, P 1-21 project area, Sierra Foothill Field Station. Comment
  CHSC32098  Oenothera elata subsp. hirsutissima L. Ahart 1977-8-22 1556 Yuba Near irrigation ditch, ca. 4 mi e of Marysville. 40 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
  UCD37866  Orthocarpus pusillus Beecher Crampton 1962-4-24 6281 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. 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
  JEPS88899  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
  SBBG26331  Panicum acuminatum B. Crampton 1966-6-14 Yuba 1 mi E of Brownsville 731 Comment
  JEPS121732  Panicum acuminatum var. fasciculatum L. P. Janeway, James Nixon, Eduardo Gonzales 2014-7-2 11430 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow opening just northeast of Little Oregon Creek and 0.2 km east of Oregon Hill Road; 7.3 air-km southeast of Challenge. Comment
  UCD88531  Panicum acuminatum var. fasciculatum Beecher Crampton 1966-6-14 7745 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  SEINET10661915  Panicum capillare Lowell Ahart 2007-10-31 Ahart 14513 Yuba T20N, R5E, southeast 1/4 Section 18. West of the official parking area, strand of Lake Oroville, Foreman Creek Area, about 1 mile south of Highway 1623 (Oroville Quincy Road), about 7 miles (air) northeast of Oroville. 225 Comment
  UCD89509  Panicum capillare Floyd Forbes 1922-7-6 s.n. Yuba Marysville. Comment
  CHSC44582  Panicum dichotomiflorum Lowell Ahart 1977-8-31 1562 Yuba Along the edges of a rice field, on Shintaffer Farms Inc., about 2 miles north-east of Marysville. 27 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
  CHSC108224  Parentucellia viscosa Lowell Ahart 2011-6-7 17415 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
  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
  CHSC97665  Parentucellia viscosa Lowell Ahart 2007-5-14 13856 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
  JEPS98360  Parentucellia viscosa Lowell Ahart 2000-5-25 8396 Yuba 6 air miles S of Smartville (a north branch of Dry Creek, 100 yds W of Smartville Road, about 2 mi N of intersection of Waldo Road and Smartville Road) 146 Comment
  SJSU10207  Parentucellia viscosa C. W. Sharsmith 1983-6-6 8788 Yuba near junction of Loma Rica & Fruitland Rds c. 0.5 mi S of La Porte-Quincy Rd 1219 Comment
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May 29 2009
  POM301690  Paspalum dilatatum J. C. Roos 1939-7-3 1519 Yuba East of Marysville 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-BC202812  Paxistima myrsinites Lillian S. Mott 1966-3-6 s.n. Yuba Willow Creek near Camptonville 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
  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
  UCD123328  Pedicularis densiflora W. R. Powell 1968-5-24 1550 Yuba 1 1/4 miles south-southwest of Challenge. 755 Comment
  CHSC117657  Pedicularis racemosa Lowell Ahart 2016-9-9 21343 Yuba On the east side of road, 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. 1214 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
  CAS-BOT-BC69326  Pellaea brachyptera Lowell Ahart 1978-11-8 s.n. Yuba On north side of the first falls on Gold Run Creek 1300 Comment
  RSA716503  Pellaea mucronata L. Ahart 2005-3-11 11613 Yuba About 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Managment Area, about 1/2/ mile north of Loma Rica Road, about 5 air miles northeast of Loma Rica 395 Comment
  SEINET11713853  Pellaea mucronata E. O. Pelton 1879-1 s.n. Yuba no further locality 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
  CHSC90346  Pellaea mucronata var. mucronata Lowell Ahart 2005-3-11 11613 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
  JEPS107679  Pellaea mucronata var. mucronata Lowell Ahart 2005-3-11 11613 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
  JEPS94942  Pellaea mucronata var. mucronata Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7731 Yuba along s side of creek about 1 mi below Scott Forbes Road (Long Bar Road) (n of the poor dirt road, about 17 mi e of Marysville); Dry Creek 121 Comment
  JEPS35169  Pellaea mucronata var. mucronata Mrs. S. M. Rust Yuba 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
  SBBG28998  Penstemon laetus D. D. Keck 1932-7-1 1608 Yuba 1 mi SE of Log Cabin Service Station, W of Camptonville 609 Comment
  SEINET7072994  Penstemon laetus var. laetus 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
  NY604500  Penstemon laetus var. leptosepalus D. D. Keck 1930-7-25 983 Yuba Bullards Bar Reservoir 457.2 Comment
  NY604505  Penstemon laetus var. leptosepalus K. A. Vincent 1987-6-24 4431 Yuba Sierra Nevada, New York Flat; along north side of LaPorte Road (CA E21) at jct. New York House (Rd.) ca. 1.8 miles west of Challenge. 731.5 Comment
  NY604508  Penstemon laetus var. leptosepalus K. A. Vincent 1987-8-10 4504 Yuba Sierra Nevada, New York Flat; along north side of LaPorte Rd. (CA E21) at jct. New York House (Rd.) ca. 1.8 miles west of Challenge. 731.5 Comment
  POM195082  Penstemon laetus var. leptosepalus D. D. Keck 1930-7-25 983 Yuba Bullards Bar Reservoir. 457 Comment
  RSA6487  Penstemon laetus var. leptosepalus D. D. Keck 1930-7-25 982 Yuba Challenge. 732 Comment
  RSA668003  Penstemon laetus var. leptosepalus Karl 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 Challenge. 732 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
  SEINET6626627  Pentagramma triangularis A. Tiehm 1975-1 649 Yuba U.C. Sierra Foothill Field Station 274 Comment
  SEINET12315995  Pentagramma triangularis E. O. Pelton 1878-1 s.n. Yuba no further locality Comment
  UCD137770  Pentagramma triangularis Barbara Yungert 1974-4-16 51 Yuba Koch Livestock Area, Sierra Foothill Field Station. Comment
  CHSC90464  Pentagramma triangularis subsp. triangularis Lowell Ahart 2005-3-11 11601 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
  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
  UCD81493  Pentagramma triangularis subsp. triangularis Christopher Michael Bronny 2009-4-1 5 Yuba Oat Hills' area of Sierra Nevada foothills. 217 Comment
  CAS-BOT-BC211273  Perideridia bacigalupii Lowell Ahart 1980-8-12 2527 Yuba About 2 miles south-east of Woodleaf 800 Comment
  CHSC105629  Perideridia bacigalupii L. P. Janeway 2010-8-11 10141 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. 832 Comment
  UCD18441  Perideridia bolanderi subsp. involucrata Eric Knapp 2000-6-16 229 B Yuba Sierra Foothill Research and Extension Center, dry grassy slope, blue oak woodland. 300 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
  CHSC108180  Perideridia lemmonii L. P. Janeway 2011-8-15 10648 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
  JEPS95124  Perideridia lemmonii Lowell Ahart 1997-8-7 7824 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
  JEPS104254  Perideridia lemmonii Lowell Ahart 2003-10-11 10624 Yuba West side of 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
  UC1389942  Perideridia lemmonii T. I. Chuang and R. Bacigalupi 1963-8-1 5909 Yuba Comment
  CHSC45876  Perideridia parishii subsp. latifolia Lowell Ahart 1980-8-12 2530 Yuba Near the edge of the dirt road, about 2 miles south-east of Woodleaf. 731 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
  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
  UCD99571  Persicaria maculosa G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12835 Yuba Northern Sierra Nevada Mountains: along Hwy. CA-49, 0.5 mile south of Camptonville. 817 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
  CHSC76291  Persicaria punctata Lowell Ahart 1999-9-17 8243 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
  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
  CHSC108226  Petrorhagia dubia Lowell Ahart 2011-6-7 17388 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
  JEPS118316  Petrorhagia dubia Lowell Ahart 2011-6-7 17388 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
  JEPS23244  Petrorhagia dubia Herbert L. Mason 1927-5-11 3735 Yuba flat w North San Juan; 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
  UCD37867  Petrorhagia dubia Beecher Crampton 1962-4-24 6283 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCR196993  Petrorhagia dubia George K. Helmkamp, E. A. Helmkamp 2008-5-20 13462 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  POM244285  Petrorhagia dubia C. B. Wolf 1937-5-13 8632 Yuba Sierra Nevada Foothills, 2 miles above Browns Valley on road to Stanfield Hill. 122 Comment
  RSA261406  Petrorhagia dubia H. J. Vaux Jr. 1961-5-20 47 Yuba State Hwy 20, 12.3 miles W of Marysville. Comment
  SEINET5337379  Petrorhagia dubia M. Dailey 1959-4-24 s.n. Yuba Rough and Ready, California, just off highway 20. 732 Comment
  UCD98374  Petrorhagia dubia Mary Anne Brayton 1964-5-2 22 Yuba Harry L. Englebright Dam, State Highway 20, 20 miles northwest of Marysville. 182 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
  JEPS94319  Phacelia cicutaria var. cicutaria Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7726 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
  UC1069332  Phacelia cicutaria var. cicutaria M. A. Elvin 1933-6-7 26 Yuba 4 mi sw Courtney Creek; Smartsville Quadrangle Comment
  UCD37873  Phacelia egena Beecher Crampton 1962-4-24 6293 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  SJSU11213  Phacelia egena J. B. Willis Jr. 1969-4-19 54 Yuba Hammonton Rd 3 mi W of Smartville 182 Comment
  UCR194904  Phacelia hastata var. compacta George K. Helmkamp, E. A. Helmkamp 2007-5-26 12143 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
  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
  CHSC8261  Phalaris aquatica J. G. Moore 1969-5-4 35 Yuba Hwy. 20, 300 yds. w of 7 mi. House on s side of road growing in ditch next to rice fields. [Label incorrectly says Nevada County]. 91 Comment
  UCD88331  Phalaris aquatica Barbara Yungert 1974-5-9 G- 6 Yuba Sierra Foothill Field Station. Along Road 1, near P 1-13 fence, W of Porter Hill. Comment
  JEPS113405  Phalaris minor Lowell Ahart 2007-5-14 13843 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
  UCD89371  Phalaris paradoxa Beecher Crampton 1957-6-5 4145 Yuba 1/2 mile W of Oregon House Post Office. Comment
  CAS-BOT-BC72716  Philadelphus lewisii Lewis S. Rose 1939-6-7 39237 Yuba N. Fork of Feather River, 3 mi. S. of Pulga 609 Comment
  UC1127348  Philadelphus lewisii N. French 1933-6-1 85 Yuba 3 1/2 mi w Bridgeport; Smartsville Quadrangle Comment
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Sep 24 2013
  UC1311876  Philadelphus lewisii B. F. Smith 1965-6-8 52 Yuba Quadrangle 50A3 Comment
  UCD82845  Philadelphus lewisii Robin McMaster 1973-6-24 499 Yuba Oregon Creek Campground. Comment
  UCD89619  Phleum pratense Beecher Crampton 1965-6-17 7386 Yuba 3.8 miles s.e. of Bangor, Las Vergeles Road. 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
  CHSC45360  Phlox speciosa subsp. occidentalis Vernon Oswald 1985-5-20 1772 Yuba Forbestown Rd. between Forbestown and Woodleaf 2.9 mi e of the Butte Co.-Yuba Co. line. On a road cut. 975 Comment
  JEPS18171  Phlox speciosa subsp. occidentalis Rimo Bacigalupi with G. T. Robbins and F. Chisaki 1956-4-19 5621 Yuba 1 mi n Dobbins (0.4 mi s of Dobbins Ranger Station, along road from Oregon House to Dobbins) 571 Comment
  SEINET7073615  Phlox speciosa subsp. occidentalis A. G. Vestal 1955-5-21 s.n. Yuba About 20.5 miles east of Oroville on Challang Cuttoff Road. UTM Zone 10, 650291mE, 4373240mN. Coordinate datum: NAD27. Comment
  POM202706  Phlox speciosa subsp. occidentalis J. E. Cramsie 1932-5-1 s.n. Yuba Smartville. 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
  CHSC113671  Phytolacca americana L. P. Janeway 2014-5-20 11258 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 19N38. 928 Comment
  CHSC113672  Phytolacca americana L. P. Janeway 2014-5-20 11258 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 19N38. 928 Comment
  CHSC69143  Phytolacca americana Lowell Ahart 1997-8-7 7820 Yuba On the east side of a small stream, a branch of Little Oregon Creek, on the south side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 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
  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
  JEPS113775  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
  HSC1544  Pinus sabiniana R. A. Magie 1964-3-27 18 Yuba 15 mi. W of Grass Valley on Hwy. 20 Comment
  CAS-BOT-BC136610  Piperia michaelii Alice Eastwood 1921-5-22 10560 Yuba Field redacted by CAS, contact the data manager for more information 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
  UCD37880  Plagiobothrys Beecher Crampton 1962-4-24 6304 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  RSA220014  Plagiobothrys bracteatus J. T. Howell, Gordon True 1967-6-13 3570 Yuba Camp Far West reservoir on Bear River E. of Wheatland. In damp soil at edge of reservoir. 61 Comment
  SJSU5649  Plagiobothrys bracteatus L. S. Rose 1967-6-13 67128 Yuba Camp Far West Reservoir 7 mi NE of Wheatland 121 Comment
  CHSC59517  Plagiobothrys fulvus H. E. Mac Lennan 1992-4-15 20 Yuba 20 air miles se of Oroville. 518 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
  RSA726544  Plagiobothrys fulvus L. Ahart 2007-5-12 13777 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  RSA726777  Plagiobothrys glyptocarpus L. Ahart 2007-4-17 13682 Yuba Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5.5 miles (air) northeast of Loma Rica. 293 Comment
  RSA0115337  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
  RSA726546  Plagiobothrys greenei L. Ahart 2007-5-12 13778 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  CAS-BOT-BC228240  Plagiobothrys hispidulus Lowell Ahart 1980-8-12 2569 Yuba Along Slate Creek 1250 Comment
  CDA31978  Plagiobothrys stipitatus var. micranthus L. 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. Comment
  CHSC115204  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2015-4-30 20132 Yuba On the west side of the quarry, about 1 1/4 miles (air) southwest of the Bullard Bar Dam, about 3 miles (air) northeast of Dobbins. 709 Comment
  CHSC82394  Plagiobothrys stipitatus var. micranthus Lowell 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. 102 Comment
  HSC100769  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2007-5-12 13779 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
  JEPS118288  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2011-6-7 17387 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 miles (by air) northeast 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
  RSA726413  Plagiobothrys stipitatus var. micranthus L. Ahart 2007-5-12 13779 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  RSA795347  Plagiobothrys stipitatus var. micranthus L. Ahart 2011-6-7 17387 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
  SEINET10781222  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2011-6-7 Ahart 17387 Yuba T16N, R6E, northeast 1/4 Section 30. Normal size plants, on good soil, 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 Bark Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. Riparian Woodland. 66 Comment
  SEINET13203148 Image available Plagiobothrys stipitatus var. micranthus George K. Helmkamp, Amy Barnes 2013-1 20250 Yuba Eastern Sacramento Valley: northbound exit road from CA-65, connecting with Forty Mile Road (Olivehurst 7.5' Q.) 30 Comment
  UCR258235  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
  CHSC68472  Plagiobothrys tenellus Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7735 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
  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
  CHSC59561  Plantago erecta H. E. Mac Lennan 1992-4-15 15 Yuba 20 air mi se of Oroville. 487 Comment
  CHSC90349  Plantago erecta Lowell Ahart 2005-3-11 11606 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
  JEPS107350  Plantago erecta Lowell Ahart 2005-3-11 11606 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
  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
  SEINET9774346 Image available Plantago lanceolata Richard Carter 2006-7-31 Yuba 12.5 mi ENE Marysville jct. Hwy CA 20 and Hwy CA 70, by Hwy CA 20 Comment
  SEINET9809658 Image available Plantago major Richard Carter 2006-7-31 Yuba 12.5 mi ENE Marysville jct. Hwy CA 20 and Hwy CA 70, by Hwy CA 20 Comment
  CHSC63204  Platanthera leucostachys Lowell Ahart 1994-6-27 7390 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
  UCD35774  Platanus racemosa Beecher Crampton 1962-4-24 6287 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCD82075  Platystemon californicus Robin McMaster 1973-4-7 221 Yuba Browns Valley, Peoria Cemetery. Comment
  UCD37882  Plectritis ciliosa Beecher Crampton 1962-4-24 6306 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD137572  Plectritis ciliosa Kathleen Keliher 1975-4-11 57 Yuba along dirt road, ca. 1 mile from picnic area, F-2 project area, Sierra Foothill Field Station. 152 Comment
  UC912454  Plectritis ciliosa subsp. ciliosa Herbert L. Mason 1927-5-11 3731 Yuba near Dobbins 457 Comment
  CAS-BOT-BC244387  Poa annua Peter Rubtzoff 1972-4-4 6723 Yuba U. C. Sierra Foothill Range Field Station, N of Smartville. Gravelly bar of the Yuba River Comment
  JEPS113470  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
  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
  JEPS121795  Poa pratensis subsp. angustifolia L. P. Janeway, James Nixon, Eduardo Gonzales 2014-7-2 11428 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow opening just northeast of Little Oregon Creek and 0.2 km east of Oregon Hill Road; 7.3 air-km southeast of Challenge. 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
  UCD33111  Poa trivialis Beecher Crampton 1966-6-14 7756 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  UCD92100  Poa trivialis Beecher Crampton 1966-6-14 7756 Yuba 1 mile east of Brownsville on La Porte road. 731 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
  CAS-BOT-BC170372  Polygala cornuta var. cornuta Rimo Bacigalupi 1927-7-2 1588 Yuba 1 mile west of Camptonville Comment
  CAS-BOT-BC170373  Polygala cornuta var. cornuta Clarence R. Quick 1966-6-28 66 -32 Yuba Challenge Ranger Station, Challenge Comment
  CAS-BOT-BC170375  Polygala cornuta var. cornuta Lowell Ahart 1979-6-25 s.n. Yuba 2 miles east of Challenge 700 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
  JEPS94513  Polygala cornuta var. cornuta Lowell Ahart 1997-8-7 7811 Yuba about 3 air mi se of Challenge (on n side of the dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  JEPS113618  Polygonum arenastrum 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
  JEPS115022  Polygonum arenastrum Lowell Ahart 2007-11-1 14537 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
  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
  CHSC97683  Polygonum aviculare Lowell Ahart 2007-11-1 14537 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
  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
  UCD100028  Polygonum aviculare subsp. depressum G. 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
  RSA654916  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
  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
  JEPS113406  Polygonum 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
  RSA726959  Polygonum convolvulus L. Ahart 2007-5-14 13842 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  CDA19038  Polygonum lapathifolium Schwall, Johnson 2000-10-16 PDR 007596 Yuba Sacramento Valley; At Greenhead Land Co., North Butte Rd., Live Oak. 0 Comment
  CAS-BOT-BC418539  Polygonum minimum Lowell Ahart 1980-8-12 2542 Yuba Along Slate Creek 1250 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
  JEPS95799  Polygonum persicaria Lowell Ahart 1999-9-17 8242 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
  JEPS95857  Polygonum persicaria Lowell Ahart 1999-9-17 8242 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
  CAS-BOT-BC419876  Polygonum polygaloides subsp. confertiflorum Lowell Ahart 2007-5-14 13853 Yuba 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
  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
  JEPS118320  Polypogon interruptus Lowell Ahart 2011-6-7 17426 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
  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
  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
  SEINET4889801  Polypogon monspeliensis A. Tiehm 1975-1 640 Yuba U.C. Sierra Foothill Field Station 198 Comment
  CHSC116295  Polystichum imbricans subsp. curtum Lowell Ahart 2015-10-23 20580 Yuba On west side of road to Slate Creek, about 1/4 mile southwest of Slate Creek Dam, about 2 miles (air) northeast of La Porte Road, about 6 1/4 miles (air) southwest of La Porte. 1119 Comment
  CHSC39642  Polystichum imbricans subsp. curtum Tom Hughes 1982-7-18 34 Yuba 1/2 mile north of SR 49 on Pendola Ranch Rd. Comment
  CHSC116296  Polystichum imbricans subsp. imbricans Lowell Ahart 2015-10-23 20579 Yuba On the west side of road to Slate Creek, about 1/8 mile southwest of Slate Creek Dam, about 2 1/8 miles (air) northeast of La Porte Road, about 6 miles (air) southwest of La Porte. 1163 Comment
  JEPS124290  Polystichum imbricans subsp. imbricans Lowell Ahart 2015-10-23 20579 Yuba About 1/8 mile southwest of the Slate Creek Dam, about 2 1/8 miles (air) northeast of La Porte Road, about 6 miles (air) southwest of La Porte. Comment
  UCD162088  Polystichum imbricans subsp. imbricans G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12823 Yuba Northern Sierra Nevada Mountains: Mountain House Road 0.6 miles west of the Sierra Co. line; Sleighville area beside Willow Creek. 1021 Comment
  UCR191116  Polystichum imbricans subsp. imbricans George K. Helmkamp, E. A. Helmkamp 2007-8-29 12823 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-BC102412  Populus fremontii A. Eastwood 1919-9-1 s.n. Yuba Marysville, along levee Comment
  CAS-BOT-BC102413  Populus fremontii Saichi Kawahara 1968-4-13 285 Yuba Highway 20 at north bank Yuba River, Park's Bar 91 Comment
  CAS-BOT-BC267185  Potamogeton foliosus Gordon H. True, Jr.; John Thomas Howell 1970-5-29 5421 Yuba Ca 1 mile NW of Spenceville (site) on Cox Creek 152 Comment
  CHSC83216  Potamogeton foliosus var. foliosus Lowell Ahart 2002-10-8 9941 Yuba In 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
  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
  CDA18955  Potamogeton illinoensis E. Finley, Koschnick 2000-6-14 PDR 1013548 Yuba Yuba County irrigation canal, Oregon House. 0 Comment
  CDA15875  Potamogeton pectinatus E. Storm 2000-2-1 PDR 1199213 Yuba Peach Tree Golf Course, Simpson Dantoni Rd., Marysville. 0 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
  CHSC63165  Potentilla gracilis var. fastigiata Lowell Ahart 1994-6-27 7382 Yuba Along a stream, east of the logging road, east of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  CHSC63168  Poterium sanguisorba Lowell Ahart 1994-6-27 7374 Yuba In about the center of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  CHSC84148  Poterium sanguisorba Lowell Ahart 2003-7-1 10339 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
  UCD33117  Poterium sanguisorba Beecher Crampton 1966-6-14 7741 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  UCD38715  Prunella vulgaris Beecher Crampton 1957-6-5 4138 Yuba 1 mile east of Stanfield Hill. Comment
  CAS-BOT-BC154618  Prunus subcordata Alice Eastwood 1930-4-12 17929 Yuba Near summit of Texas hill 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
  JEPS115027  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
  JEPS94448  Pseudognaphalium thermale Lowell Ahart 1997-8-30 7881 Yuba about 1 air mi s of Woodleaf (on the w side of the dirt road, near a road culvert) 944 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
  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
  CHSC74073  Psilocarphus tenellus var. tenellus B. Castro; R. Fallscheer, M. A. Griggs, N. Kang, J. Dittes 1995-4-15 558 Yuba Ca 2.5 air mi S of the Yuba River, on Beale AFB grounds, ca 1 mi NW of main campground. 28 Comment
  JEPS113477  Psilocarphus tenellus var. tenellus Lowell Ahart 2007-5-12 13773 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
  CAS-BOT-BC72530  Pteridium aquilinum Lowell Ahart 1979-6-3 s.n. Yuba 1 mile S of Challenge 700 Comment
  CHSC43544  Pteridium aquilinum var. pubescens Lowell Ahart 1979-6-3 1923 Yuba About 1 mile south of Challenge. 670 Comment
  CHSC63138  Pterospora andromedea Lowell Ahart 1994-6-27 7396 Yuba In forest on the north side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 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
  RSA715486  Pterostegia drymarioides L. Ahart 2005-3-11 11617 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
  CAS-BOT-BC328152  Pyrrocoma lucida L. S. Smith 1935-5-24 2778 Yuba Near Camptonville near highway 762 Comment
  UC1135527  Quercus berberidifolia M. A. Elvin 1933-7-7 34 Yuba 1.5 mi s Virginia Ranch; Smartsville Quad. 457 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
  UCD40469  Quercus chrysolepis Rodney Gale Myatt 1971-11-1 1590 -16 Yuba Oregon Creek-Middle Fork Yuba River. Yuba River where smaller Oregon Creek is confluent. 640 Comment
  UCD82653  Quercus chrysolepis Rodney Gale Myatt 1971-11-1 1590 -15 Yuba Oregon Creek-Middle Fork Yuba River. Yuba River where smaller Oregon Creek is confluent. 640 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
  CAS-BOT-BC86014  Quercus douglasii Carl B. Wolf 1930-10-12 1737 Yuba along Yuba River near Hammonton 152 Comment
  CAS-BOT-BC86015  Quercus douglasii Carl B. Wolf 1930-10-12 1737 Yuba along Yuba River near Hammonton 152 Comment
  RSA1860  Quercus douglasii Carl B. Wolf 1930-10-12 1737 Yuba Along the Yuba River near Hammondon 152 Comment
  UC484023  Quercus douglasii Carl B. Wolf 1930-10-12 Yuba near bridge on Browns Valley to Smartsville Road (along Yuba River); Yuba River 152 Comment
  UCD37876  Quercus douglasii Beecher Crampton 1962-4-24 6296 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CHSC107279  Quercus durata var. durata L. P. Janeway 2011-8-10 10645 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. 1032 Comment
  CHSC32630  Quercus durata var. durata M. S. Taylor; L. Hanson 1981-4-2 3466 Yuba N side of Forbestown-Woodleaf Rd, ca. 3/4 mi e of its jct with Forbestown Rd, ca. 2 mi w of Woodleaf. 853 Comment
  CHSC63255  Quercus durata var. durata Lowell Ahart 1994-6-5 7306 Yuba On the north side of Costa Creek, on the north side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  JEPS113300  Quercus garryana 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. 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
  UCD80342  Quercus garryana var. breweri CNPS SN Foothill Team 2005-6-1 SNNR 0128 Yuba BLM, Ponderosa Landfill. 670 Comment
  CHSC47413  Quercus kelloggii Lowell Ahart 1976-4-15 1073 Yuba On the west side of Ponderosa Way, near the Brownsville Dump, about 2 miles southwest of Brownsville. 457 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
  CAS-BOT-BC94995  Quercus lobata R. C. Wenk 2008-7-18 976 Yuba 5 mi. from Highway 20 going east from Marysville, along Peoria and Scott Forbes Roads 204 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
  JEPS98461  Ranunculus aquatilis Lowell Ahart 2000-6-11 8466 Yuba 6 air miles S of Smartville (a N branch of Dry Creek, 100 yds W of Smartville Road, 2 mi N of the int of Waldo Road and Smartville Road) 146 Comment
  CAS-BOT-BC378952  Ranunculus arvensis John Thomas Howell; Gordon H. True 1971-5-26 47607 Yuba 8 mi east of Marysville 30 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
  SEINET11261738  Ranunculus bonariensis var. trisepalus George Helmkamp, E. A. Helmkamp 2011-5-6 17205 Yuba East edge of Sacramento Valley: junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (471/4) of Wheatland (Camp Far West 7.5' Q.); 0 56 Comment
  UCR258236  Ranunculus bonariensis var. trisepalus George K. Helmkamp, Amy Barnes 2013-3-28 20251 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  UCD82079  Ranunculus californicus Robin McMaster 1973-4-7 237 Yuba Browns Valley, Dry Creek. Comment
  UCD95968  Ranunculus californicus W. R. Powell 1968-4-24 1478 Yuba along Peoria Road, 4 miles northeast of Browns Valley. 158 Comment
  UCR118900  Ranunculus canus Beecher Crampton 1962-4-24 6307 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
  CHSC96492  Ranunculus hebecarpus Lowell Ahart 2007-4-17 13693 Yuba 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
  JEPS113096  Ranunculus hebecarpus Lowell Ahart 2007-4-17 13693 Yuba 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
  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
  UCD96262  Ranunculus muricatus Barbara Yungert 1974-4-10 15 Yuba Sieera Foothill Field Station. West of station headquarter, SC-5 project area. Comment
  JEPS87732  Ranunculus occidentalis Lowell Ahart 1994-7-27 7373 Yuba about 4 mi ne Strawberry Valley (e side of La Porte Rd, in about center of meadow); Schwartz Meadow 1219 Comment
  JEPS97387  Ranunculus occidentalis Lowell Ahart 1994-7-27 7373 Yuba about 4 mi ne Strawberry Valley (e side of La Porte Rd, in about center of meadow); Schwartz Meadow 1219 Comment
  UCD96793  Ranunculus occidentalis R. O. Hanes 1992-4-6 48 Yuba Plumas Forest. 731 Comment
  RSA21294  Ranunculus occidentalis var. eisenii Carl B. Wolf 1937-5-13 8639 Yuba Sierra Nevada Foothills, 2.7 miles below Stanfield Hill on road to Browns Valley. 183 Comment
  SJSU10210  Ranunculus orthorhynchus var. orthorhynchus C. W. Sharsmith 1983-6-7 8791 Yuba Rose Ranch c. 4 mi NE from Strawberry Valley on LaPorte-Quincy Rd; Yuba & Sierra county boundary 1432 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
  SD236247  Raphanus raphanistrum G. K. Helmkamp, E. A. Helmkamp 2008-10-6 14211 Yuba Sacramento Valley; Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst (Olivehurst 7.5'Q) 20 Comment
  UCR201738  Raphanus raphanistrum George K. Helmkamp, E. A. Helmkamp 2008-10-6 14211 Yuba Sacramento Valley, Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  RSA318096  Raphanus raphanistrum Fields 1969-4-27 25 Yuba Mariposa and Douglas AVe in El Segundo Comment
  CAS-BOT-BC427549  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
  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
  CHSC113645  Rhamnus ilicifolia L. P. Janeway 2014-5-12 11250 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 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
  RSA754447  Rhamnus ilicifolia L. P. Janeway 2008-5-11 9360 Yuba Northern High Sierra Nevada: In the NW head of Slapjack Creek; along Road 19N34, 1.3 road km SE of Challenge-La Porte Road; about 1.2 km SSE of Woodleaf. 940 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
  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
  RSA12713  Rhamnus rubra subsp. obtusissima Carl B. Wolf 1934-10-4 6154 Yuba Texas Hill, 2 miles from Dobbins. 457 Comment
  RSA724912  Rhamnus tomentella subsp. tomentella L. P. Janeway 2006-5-24 8625 Yuba Northern Sierra Nevada Foothills, E side of Ponderosa Way 1.3km N of La Porte Road and Brownsville. 686 Comment
  RSA7868  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1927-11-6 1447 Yuba Along the Yuba River near bridge on the Browns Valley to Smartsville Road. Comment
  UC1121761  Rhamnus tomentella subsp. tomentella M. A. Elvin 1933-7-7 43 Yuba 2 mi e Oregon House; Smartsville Quad. 487 Comment
  UC592707  Rhamnus tomentella subsp. tomentella C. B. Wolf and E. R. Johnson 1934-10-4 Yuba 2 mi w Dobbins; Sierra Nevada Foothills, Texas Hill 457 Comment
  UC592779  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
  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
  CAS-BOT-BC199743  Rhododendron occidentale var. paludosum Lloyd W. Swift 1932-5-9 64 Yuba Plumas National Forest. S. of Challenge 762 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
  SEINET13942762 Image available Ribes roezlii Alice Eastwood 2018-4-7 6796 Yuba Camptonville Comment
  CAS-BOT-BC209277  Ribes roezlii var. roezlii Alice Eastwood 1918-4-7 6796 Yuba Camptonville 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
  CHSC82382  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 there is a poor Texas gate on the south side of the road, north of Camp Far West Reservoir. 102 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
  CHSC97703  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
  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
  CAS-BOT-BC74802  Rorippa palustris var. palustris Lowell Ahart 1977-8-31 s.n. Yuba Sam Shintaffer Farm, 2 miles northeast of Marysville. 30 Comment
  CAS-BOT-BC7106  Rosa bridgesii Lester Rowntree 1941-5-14 s.n. Yuba On road bewteen Dobbin & Camplonville Comment
  CHSC115285  Rosa bridgesii Lowell Ahart 2015-4-30 20124 Yuba Open forest, on the north side of the gravel road, about 30 yards northeast of the gate, about 3/4 mile (air) southeast of Woodleaf. 948 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
  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
  JEPS104088  Rosa bridgesii Lowell Ahart 2003-7-2 10342 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
  JEPS104206  Rosa bridgesii Lowell Ahart 2003-10-11 10627 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
  JEPS123871  Rosa bridgesii Lowell Ahart 2015-4-30 20124 Yuba About 3/4 mile (air) southeast of Woodleaf. Comment
  UCD113387  Rosa bridgesii Kathleen Keliher 1975-5-30 119 Yuba Along New York Flat Road, W of Forbestown. 822 Comment
  JEPS124105  Rosa californica Lowell Ahart, Susan Kephart, Jim Kephart 2015-6-4 20196 Yuba About 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. Comment
  RSA317344  Rosa californica James R. Shevock 1972-5-19 1757 Yuba Hwy 70, north of Marysville 21 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
  CDA3958  Rosa eglanteria T. C. Fuller, H. K. Wagnon 1964-5-18 11987 Yuba North of Highway 20 to Grass Valley, 0.8 mile east of Smartsville. 0 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
  CHSC69153  Rosa gymnocarpa Lowell Ahart 1997-8-7 7817 Yuba On the bottom of a stream, 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
  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
  CAS-BOT-BC148328  Rosa pisocarpa Alice Eastwood 1921-5-22 10569 Yuba Los Vergils Comment
  CHSC97237  Rosa pisocarpa Lowell Ahart 2007-6-23 14225 Yuba South meadow edge, around a large meadow on the east side of La Porte Road, about 1/2 mile north of the intersection of Scales Road and La Porte Road, about 4 miles (air) northeast of Strawberry Valley. 1210 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
  CHSC115680  Rosa spithamea Emily Meigs Doe; L. P. Janeway 2015-4-30 26 Yuba Northern High Sierra Nevada. Plumas National Forest. Approx. 2.2 miles SW of Forbestown. About 20 ft. E of Rd 19N32, about 180 ft. N/E of its intersection with Rd. 19N59 (rd. to Bootjack Mine). Comment
  JEPS127562  Rosa spithamea Emily Meigs Doe 2015-4-30 26 Yuba Northern High Sierra Nevada. Plumas National Forest. Approx. 2.2 miles SW of Forbestown. About 20 ft E of Road 19N32, about 180 ft N/E of its intersection with Road 19N59 (Road to Bootjack Mine). Forbestown 7.5' Quad. Comment
  UCD103089  Rotala indica John F. Williams 1974-10-8 s.n. Yuba On Tanabe Road, NE of Marysville. Comment
  CHSC116113  Rotala ramosior Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20650 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
  JEPS124308  Rotala ramosior Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20650 Yuba Below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  UCD113780  Rubus armeniacus Barbara Yungert 1974-5-14 153 Yuba along irrigation ditch in SC-13 project area, Sierra Foothill Field Station. Comment
  RSA79048  Rubus discolor E. K. Balls, Percy C. Everett 1952-10-15 18218 Yuba 5.9 miles E and N of Marysville. Hwy 20 to Smartsville. 152 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
  JEPS117304  Rubus pensilvanicus Lowell Ahart 2010-7-27 16923 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
  CHSC106051  Rubus ursinus Lowell Ahart 2010-7-27 16923 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
  RSA1886  Rubus ursinus Carl B. Wolf 1930-10-13 1740 Yuba On Browns Valley - Smartsville Rd. 152 Comment
  UCD17942  Rubus ursinus H. Olmo; T. S. Mallah 1953-3-24 53 27 A Yuba California. Yuba County: Highway 28 in Smartville. Growing 50-100 yards east of monument. Comment
  CHSC108225  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
  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
  RSA727115  Rumex pulcher L. Ahart 2007-5-14 13868 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  CHSC97507  Sagina apetala Lowell Ahart 2007-5-12 13787 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
  CHSC45582  Sagina saginoides Lowell Ahart 1980-8-12 2572 Yuba On a large gravel bar in 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
  CAS-BOT-BC267070  Sagittaria F. J. Veihmeyer 1932-10-1 s.n. Yuba Sacramento Valley 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
  JEPS118296  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-BC104031  Salix gooddingii C. Hart Merriam 1906-9-1 s.n. Yuba Mouth of the Yuba River, Marysville Comment
  CAS-BOT-BC104032  Salix gooddingii C. Hart Merriam 1906-9-1 s.n. Yuba Mouth of the Yuba River, Marysville Comment
  CAS-BOT-BC104033  Salix gooddingii John Thomas Howell; Gordon H. True 1970-5-29 5418 A Yuba Artificial lake ca. [1mi.] 1 mi. NW. of Spenceville (site) on Cox Creek 152 Comment
  CHSC96496  Salix laevigata Lowell Ahart 2007-4-17 13683 Yuba East 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
  JEPS120943  Salix laevigata Lowell Ahart 2013-4-23 18565 Yuba Along Costa Creek, about 100 yards E of where the paved road crosses Costa Creek, about 2.5 air miles SE of the Forbestown Store. 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
  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
  CAS-BOT-BC107372  Salix lasiolepis var. lasiolepis A. A. Heller 1905-3-21 7559 Yuba Marysville Comment
  JEPS114710  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
  UC1134923  Salix melanopsis M. A. Elvin 1933-7-1 32 Yuba Virginia Ranch Smartsville Quad. 457 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
  UCD141973  Salsola ryanii P. Akers 2002-9-19 RT 10 -2 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
  CHSC51233  Salvia sonomensis Lowell Ahart 1976-4-15 1070 Yuba Growing near the Brownsville Dump, on the east side of Ponderosa Way, about 2 miles west of Brownsville. 518 Comment
  CHSC74096  Salvia sonomensis L. Gehrung 1996-6-24 Yuba Ca 2.2 air mi E of Challenge and W of the Yuba River, on E side of the USFS Rd 19N03 just N of Indian Creek crossing. 762 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
  UCD137217  Sambucus nigra subsp. caerulea Barbara Yungert 1974-5-14 151 Yuba near gate to Meathook project area, Sierra Foothill Field Station. 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
  UC519220  Sanguisorba minor subsp. muricata A. E. Wieslander and R. W. Lundh 1933-6-19 319 Yuba 2 mi s Kentucky House 487 Comment
  UCD80015  Sanicula bipinnata CNPS SN Foothill Team 2005-3-15 SNFN 0056 Yuba CDFG Spenceville Wildlife Area. Plot is located on top of east-facing slope, WSW of Pittman Pond, and 2 miles W of junction between Smartville Road and Pittman Road. 174 Comment
  CDA20325  Sanicula bipinnata M. Stelmok 2005-3-8 PDR 1305468 Yuba Browns Valley. 6463 Tonopah Trail. 0 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
  UC566792  Sanicula bipinnatifida Herbert L. Mason 1927-5-11 3730 Yuba vicinity of Dobbins 457 Comment
  UCD111110  Sanicula bipinnatifida Christopher Mallek 2008-1 s. n. Yuba Daken Flat. 675 Comment
  UCR206957  Sanicula bipinnatifida George K. Helmkamp, E. A. Helmkamp 2009-5-28 14821 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 Comment
  CAS-BOT-BC223236  Sanicula bipinnatifida Alice Eastwood 1921-5-22 10543 Yuba Los Vergils 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
  UCD128077  Sanicula crassicaulis Barbara Yungert 1974-5-9 143 Yuba west of Road 6, K 1-11 project area, Sierra Foothill Field Station. 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
  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
  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
  SEINET7042650  Scandix pecten-veneris 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
  UC1167548  Schoenoplectus mucronatus A. S. Leopold 1959-8-30 Yuba 10 mi s Marysville (Coburn Haskell Ranch); s of Marysville, Coburn Haskell Ranch 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
  UC1552704  Scirpus microcarpus Frederica Bowcutt 1985-6-8 590 Yuba 1 air mi se Camptonville (12 air mi n of Nevada City, along Oregon Creek, Tahoe National Forest); Tahoe National Forest, along Oregon Creek 762 Comment
  CDA2626  Scirpus mucronatus L. 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. 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
  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
  UCD33109  Scirpus setaceus Beecher Crampton 1966-6-14 7752 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  CAS-BOT-BC243533  Scribneria bolanderi Beecher Crampton 1957-6-5 4147 Yuba 1/2 mile west of Oregon House Post Office 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
  UCD124854  Scrophularia californica Barbara Yungert 1974-5-23 184 Yuba south of Route 6, K 1-11 project area, Sierra Foothill Field Station. Comment
  CHSC97774  Scrophularia californica subsp. floribunda Lowell Ahart 2007-11-1 14544 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
  JEPS98711  Scutellaria bolanderi subsp. bolanderi Lowell Ahart 2000-6-11 8472 Yuba 8 mi (air) S of Smartville (E side of a small wash, W of Smartville Road, about 1/8 mi SW of int. with Waldo Road) 99 Comment
  CHSC107991  Scutellaria californica Matt Simenc; M. Williams 2011-7-8 23 Yuba Northern Sierra Nevada. Growing throughout rocky dry serpentine drainages and outcrops. 846 Comment
  UC1075582  Scutellaria californica E. K. Balls and L. W. Lenz 1956-6-20 21852 Yuba 4 mi sw of Camptonville (along State Hwy 49) 975 Comment
  HSC99328  Scutellaria californica C. B. Wolf 1927-11-5 1441 Yuba Road to Brown's Valley, 8 mi. from Marysville Comment
  RSA10982  Scutellaria californica Carl B. Wolf 1927-11-5 1441 Yuba Eight miles from Marysville on road to Browns Valley. Comment
  RSA712787  Scutellaria californica L. P. Janeway 1994-1-7 4675 Yuba Northern High Sierra Nevada. West side of Slate Creek about 3 air mi northeast of Strawberry Valley; along Road 20N35 0.1 mi south of the bridge across Slate Creek. 1006 Comment
  SD27920  Scutellaria californica Carl B. Wolf 1927-11-5 1441 Yuba 8.0 miles from Marysville on road to Brown's Valley. Comment
  UC565456  Scutellaria tuberosa Herbert L. Mason 1927-5-11 3728 Yuba vicinity of Dobbins 457 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
  RSA715713  Selaginella hansenii Lowell A. Ahart 2005-2-28 11565 Yuba 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., W of a poor dirt road, about 0.5 mile W of Marysville Road, about 0.5 mile N of Parking Area 3. 404 Comment
  CHSC87338  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
  HSC96917  Senecio aronicoides L. Ahart 2004-4-27 10766 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
  CHSC108327  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
  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
  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
  CHSC95112  Sericocarpus oregonensis L. P. Janeway; Erin Brandy, David Toren 2006-9-25 8887 Yuba Northern High Sierra nevada. Plumas National Forest; along Scales Road on east side of canyon of Slate Creek, 0.7 km south of the bridge across the creek; 4.5 air km west-southwest of Strawberry Valley. 1017 Comment
  CAS-BOT-BC364725  Sericocarpus oregonensis subsp. californicus Lowell Ahart 1976-10-1 s.n. Yuba Bullards Bar Dam Comment
  CAS-BOT-BC243560  Setaria parviflora Roxana S. Ferris 1927-11-5 6940 Yuba 7 miles from Brown Valley on Marysville Road Comment
  CHSC69439  Setaria pumila Lowell Ahart 1997-8-13 7862 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
  CHSC96869  Setaria pumila Lowell Ahart 2007-6-30 14232 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. 28 Comment
  HSC10908  Setaria pumila T. F. Newman 1965-8-22 6558 Yuba Carnes Ranch, 10 mi. N of Marysville Comment
  CDA31983  Setaria viridis L. 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 20 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 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
  CHSC108187  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
  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
  CAS-BOT-BC213108  Sidalcea John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54082 Yuba About 2 miles northeast of dobbins on Oregon Hill Road, Sierra Nevada. 701 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
  CHSC100996  Sidalcea asprella L. P. Janeway 2006-5-24 8617 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way 1.6 road km north of La Porte Road and Brownsville. 680 Comment
  CHSC101000  Sidalcea asprella L. P. Janeway 2006-5-24 8609 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
  UC570264  Sidalcea diploscypha H. S. Yates 1933-5-24 3643 Yuba 3 mi w Cabbage Patch; Smartsville Quad. Comment
  RSA121083  Sidalcea diploscypha H. S. Yates 1933-5-24 3643 Yuba Smartsville, 3 miles W. of Cabbage Patch 30 Comment
  CHSC109482  Sidalcea gigantea G. L. Clifton 1996-8-17 35038 Yuba At Travis Saddle along La Porte Road in a meadow. 1097 Comment
  CHSC74098  Sidalcea gigantea B. Castro; L. Gehrung 1998-7-30 818 Yuba Ca 1.7 air mi S of Sly Creek Reservoir and 5 mi E of Woodleaf along the La Porte Rd, 0.1 mi E of Travis Saddle. Large stand on S side of road. 1112 Comment
  RSA792311  Sidalcea gigantea G. L. Clifton 1996-8-17 35038 Yuba At Travis Saddle along La Porte Road. 1098 Comment
  UC871451  Sidalcea hartwegii Lewis S. Rose 1940-5-28 40400 Yuba Oregon House 457 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
  UCD116753  Sidalcea hartwegii Barbara Yungert 1974-5-15 156 Yuba along Forbes Road 3, near fence of F 1-14 project area, Sierra Foothill Field Station. Comment
  CHSC97566  Sidalcea hirsuta Lowell Ahart 2007-5-12 13799 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
  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
  HSC100772  Sidalcea hirsuta Lowell Ahart 2007-5-14 13851 Yuba 13.5 (air) mi. NE of Marysville, ~1/2 mi. N of Fruitland Rd. and ~30 yd. E of third power tower. 29 Comment
  JEPS113506  Sidalcea hirsuta Lowell Ahart 2007-5-12 13799 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
  RSA726961  Sidalcea hirsuta L. Ahart 2007-5-14 13851 Yuba About 1/2 mile north of Fruitland Road, about 13.5 miles (air) northeast of Marysville. 29 Comment
  CDA36506  Sidalcea malviflora subsp. asprella G. D. Barbe, T. C. Fuller 1982-6-14 3672 Yuba 0.3 mile east of Challenge, 3.2 miles southwest of Woodleaf. 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
  CAS-BOT-BC384438  Silene coronaria Lowell Ahart 1980-6-19 2393 Yuba Along La Porte Road, near Rackerby 320 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
  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
  UCD98992  Silene laciniata subsp. californica Kathleen Keliher 1975-4-19 64 Yuba 100 yards below Englebright Reservoir, Sierra Foothill Field Station. 152 Comment
  UCD135842  Silybum marianum Kathleen Keliher 1975-5-31 126 Yuba upper H-2 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC75047  Sisymbrium altissimum Lowell Ahart 1977-4-16 s.n. Yuba Marysville. 30 Comment
  JEPS113528  Sisymbrium officinale Lowell Ahart 2007-5-14 13858 Yuba Dry bare red soil in the center of a dirt road, 10 yards south of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville 29 Comment
  UCD138852  Sisyrinchium bellum Barbara Yungert 1974-4-16 47 Yuba north of Road 4, SC-14 project area, Sierra Foothill Field Station. Comment
  CHSC43368  Solanum americanum Lowell Ahart 1977-8-31 1561 Yuba Along the edge of Jack Slough, Shintaffer Farms, about 2 miles north-east of Marysville. 27 Comment
  CHSC76111  Solanum americanum Lowell Ahart 1999-9-5 8200 Yuba On the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 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
  UCD126977  Solanum parishii Kathleen Keliher 1975-4-19 65 Yuba 70 meters below Englebright Dam, 20 meters above Yuba River, Sierra Foothill Field Station. 152 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
  JEPS113635  Solanum sarrachoides 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
  CHSC97653  Soliva sessilis Lowell Ahart 2007-5-12 13776 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
  CAS-BOT-BC365807  Soliva sessilis Peter H. Raven 1954-4-17 6624 Yuba Marysville Comment
  CAS-BOT-BC365831  Soliva sessilis Gordon H. True; John Thomas Howell 1969-4-9 4781 Yuba Timbuctoo, just west of Smartville 121 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
  CHSC108208  Sonchus asper subsp. asper Lowell Ahart 2011-6-7 17384 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
  CHSC116037  Sonchus asper subsp. asper Lowell Ahart 2015-11-19 20678 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
  CHSC110878  Sorghum halepense Tim Hanson 2013-8-26 10 Yuba Northern Sierra Nevada Foothills. On shoulder of La Porte Road approximately 1.8 road km southwest of Woodleaf. 975 Comment
  UCD92639  Sorghum halepense A. A. Beetle 1941-6-26 2735 Yuba Near Marysville. Comment
  UCR201936  Sorghum halepense George K. Helmkamp, E. A. Helmkamp 2008-10-6 14206 Yuba Sacramento Valley, junction of CA-65 and Ostrom No. 3 Road, southeast of Olivehurst 24 Comment
  JEPS118315  Spergula arvensis subsp. arvensis Lowell Ahart 2011-6-7 17390 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
  JEPS113636  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
  CDA6935  Spergularia rubra G. K. Helmkamp, E. A. Helmkamp 2006-10-1 11523 Yuba Northern Sierra Nevada Mountain Foothills; Along Highway CA-49 just north of the Nevada County line at the Middle Yuba River bridge. Comment
  UCD99287  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
  UCR179332  Spergularia rubra George K. Helmkamp, E. A. Helmkamp 2006-10-10 11523 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
  CHSC84241  Spiranthes porrifolia Lowell Ahart 2003-7-6 10357 Yuba Near and 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
  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
  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
  CHSC69418  Stephanomeria paniculata Lowell Ahart 1997-8-30 7877 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
  CDA8871  Stephanomeria virgata subsp. pleurocarpa L. Ahart 2002-10-1 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. Comment
  CHSC24428  Stephanomeria virgata subsp. pleurocarpa Lowell Ahart 1976-10-1 1214 Yuba Along the edge of the road to Alleghany, 3 mi s of Camptonville. 914 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
  CHSC90342  Streptanthus tortuosus var. suffrutescens Lowell Ahart 2005-2-28 11566 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
  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
  JEPS107423  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
  CDA39379  Streptopus amplexifolius var. americanus L. Ahart 2002-10-9 9965 Yuba On the west bank of a small stream, above the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir.