Search Results — 2000 specimen records retrieved (1519 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UCR201764  Abutilon theophrasti George K. Helmkamp, E. A. Helmkamp 2008-10-6 14210 Yuba Sacramento Valley, Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  HSC2829  Acer negundo var. californicum T. F. Newman 1965-4-7 6510 Yuba Lembke ranch, 9 mi. N of Marysville, near bank of Feather River Comment
  CAS-BOT-BC30407  Achillea millefolium Lowell Ahart 1979-6-25 s.n. Yuba 2 miles east of Challenge 700 Comment
  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
  CHSC37190  Achnatherum lemmonii L. Ahart 1982-7-4 3658 Yuba Near Brownsville Dump, Brownsville. 600 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
  UCD50454  Achnatherum lemmonii Beecher Crampton 1965-6-17 7381 Yuba 4 miles south of Brownsville, Willow Glen Road. 670 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
  JEPS125983  Achnatherum lettermanii D. W. Taylor 2001-8-1 17854 Yuba Slate Creek ca 2 miles E of Gibsonville, ca 8 miles NE of La Porte, along Forest Road 22N44X. Comment
  CHSC44595  Achnatherum occidentale subsp. californicum Lowell Ahart 1979-6-25 1947 Yuba About 2 miles east of Challenge. 640 Comment
  SEINET10611233  Achnatherum stillmanii Dean W. Taylor 2001-6-6 Taylor 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; T20N R8E NE1/4 Section 27; 39.56808N/-121.06651W; Strawberry Valley 7 1/2' USGS quadrangle; growing on rocky roadcut on partially serpentinized substrate, in dense woodland with Pinus ponderosa, Calocedrus decurrens, Cornus nuttallii, Ceanothus integerrimus. 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
  UCD37846  Achyrachaena mollis Beecher Crampton 1962-4-24 6245 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CAS-BOT-BC29940  Achyrachaena mollis Gordon H. True 1964-4-17 1161 Yuba About 6.5 miles south of Smartville, on Beale A.F.B. road 144 Comment
  CHSC108184  Acmispon americanus var. americanus Lowell Ahart 2011-6-7 17393 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCD103961  Acmispon americanus var. americanus Barbara Yungert 1974-5-8 135 Yuba North of Yuba River, f-2 project area, Sierra Foothill Field Station. Comment
  SBBG3418  Acmispon grandiflorus var. grandiflorus H. and M. Dearing 1939-5-7 Yuba Brownsville 762 Comment
  JEPS121744  Acmispon grandiflorus var. macranthus L. P. Janeway 2014-4-24 11233 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. Comment
  UCD104353  Acmispon parviflorus Barbara Yungert 1974-4-25 76 Yuba West of four wheel drive road, Jack-Ass Joe area, F-2 project area, Sierra Foothill Field Station. Comment
  JEPS112956  Adiantum aleuticum Dean W. Taylor 2001-6-18 17787 Yuba canyon of Slate Creek, along Forest Road 35 about 0.5 miles SE of the bridge over Slate Creek 1036 Comment
  RSA687742  Adiantum aleuticum Dorothy Davis 1923-08 s.n. Yuba Downsiville 1220 Comment
  UCD51557  Aegilops triuncialis Beecher Crampton 1965-6-17 7366 Yuba 2 miles s.e. Loma Rica, Browns Valley Road. Comment
  UCR169016  Aegilops triuncialis David Charlton 2005-5-16 8007 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  CAS-BOT-BC295538  Agnorhiza bolanderi Alice Eastwood 1930-4-12 s.n. Yuba Near top of Texas Hill Comment
  JEPS18172  Agnorhiza bolanderi Rimo Bacigalupi with G. T. Robbins and F. Chisaki 1956-4-19 5619 Yuba 1 mi n Dobbins (0.4 mi s of Dobbins Ranger Station, along road from Oregon House to Dobbins) 571 Comment
  JEPS85606  Agnorhiza bolanderi Rimo Bacigalupi with G. T. Robbins and F. Chisaki 1956-4-19 5619 Yuba 1 mi n Dobbins (0.4 mi s of Dobbins Ranger Station, along road from Oregon House to Dobbins) 571 Comment
  CHSC44843  Agoseris grandiflora Lowell Ahart 1979-6-25 1944 Yuba About 1 air mile south of Challenge. 640 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
  CAS-BOT-BC22953  Agoseris heterophylla Gordon H. True 1963-4-17 1163 Yuba About 14 miles east of Marysville, on Marysville-Grass Valley Hwy 60 Comment
  SEINET5713145  Agoseris heterophylla Br Vance 1974-1 9 Yuba 3 air miles 20 degrees east of north from Station Headquarters, University of California Sierra Foothill Range Field Station.; UC Foothill Field Station 457 Comment
  UCD128615  Agoseris heterophylla Barbara Yungert 1974-4-25 83 Yuba along four wheel drive road, lower SC-14 project area, Sierra Foothill Field Station. Comment
  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
  JEPS113693  Agrostis avenacea Lowell Ahart 2007-5-14 13862 Yuba On dry bare red soil, on the bottom of a swale, about 250 yards west of the power tower, power tower is about 30 yards north of the Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  RSA727117  Agrostis avenacea L. Ahart 2007-5-14 13862 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  UCD52285  Agrostis exarata Beecher Crampton 1964-10-22 7220 Yuba 3 miles east of Brown's Valley, Dry Creek. 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
  UCD53049  Agrostis microphylla Robert E. Preston 1995-5-10 867 Yuba N edge of Beale Air Force Base, 0.4 mi. e. of jct Smartsville Road and Doolittle Drive. 41 Comment
  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
  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
  JEPS104246  Agrostis stolonifera Lowell Ahart 2003-7-6 10366 Yuba Near a meadow, e of the power line, ca 50 yd nw of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  SEINET3450791  Agrostis stolonifera Unknown 2003-7-6 10366 Yuba Dobbins, Dobbins, about 5 air miles north Comment
  UCR189623  Agrostis stolonifera George K. Helmkamp, E. A. Helmkamp 2007-8-29 12841 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 Comment
  CHSC63205  Agrostis thurberiana Lowell Ahart 1994-6-27 7394 Yuba North of the dirt road that goes from La Porte Road to the Poverty Hill Mine (County Road), east of Schwartz Meadow, about 4 miles north-east of Strawberry Valley. 1219 Comment
  CHSC107312  Aira caryophyllea L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10372 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. 750 Comment
  JEPS118730  Aira caryophyllea L. P. Janeway and Melanie Williams, Tim Hanson 2011-6-9 10372 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. French Corral 7.5' quad. 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
  SEINET7067139  Aira caryophyllea A. G. Vestal 1947-4-30 s.n. Yuba About 5.1 miles west of Smartville on Route 20. Coordinate datum: NAD27. Comment
  UCD55732  Aira caryophyllea Beecher Crampton 1957-6-5 4128 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  UCD55768  Aira caryophyllea Beecher Crampton 1962-4-24 6277 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCR234208  Aira caryophyllea George K. Helmkamp, E. A. Helmkamp 2011-4-10 17166 Yuba Sacramento Valley, along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland 44 Comment
  SEINET5336000  Aira caryophyllea D. Selleck 1979-4-27 s.n. Yuba Sierra Field Station-UC Davis Comment
  UCD55798  Aira caryophyllea var. capillaris Beecher Crampton 1957-6-5 4153 Yuba 1.3 miles east of Oregon House Store. 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
  RSA116440  Aira elegans Beecher Crampton 1957-6-5 4153 Yuba 1.3 miles east of Oregon House Store Comment
  UC1153945  Aira elegantissima Beecher Crampton 1957-6-5 4153 Yuba 1.3 mi e Oregon House Store Comment
  UCD32892  Aira elegantissima Beecher Crampton 1965-5-11 7317 Yuba Yuba County, 2.5 miles S.W. Brown Valley. Comment
  JEPS104656  Alisma lanceolatum Lowell Ahart 2003-7-17 10415 Yuba On the bottom of a small stream, on the w side of Smartville Rd, ca 2 mi n of the intersection of Waldo Rd and Smartville Rd, ca 6 mi (air) south of Smartville. 129 Comment
  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
  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
  SEINET8466776 Image available Allium amplectens D. W. McNeal 1975-5-9 1599 Yuba above a rd. cut on Hwy. #20 just above Smartville, ca. 1.5 mi. w. of the Yuba-Nevada Co. line. Comment
  UCD141817  Allium amplectens L. K. Mann 1958-4-20 s.n. Yuba along Highway 20, a few miles east of Marysville near culvert #A-7.14. Comment
  CHSC10818  Allium membranaceum Lowell Ahart 1967-5-15 Yuba Near Bullard bar. 914 Comment
  UC1299738  Allium membranaceum Freed W. Hoffman 1949-5-14 2809 Yuba at e abutment of dam, Bullards Bar Dam and Reservoir Bullards Bar Dam and Reservoir Comment
  CAS-BOT-BC472979  Allium membranaceum Barbara T. Keller 1975-6-10 1519 Yuba Willow Glen Road from Stanfield Hill to Brownsville, 11.5 miles north of junction of Willow Glen Road and Marysville Road. Comment
  UCD37893  Allium peninsulare Beecher Crampton 1962-4-24 6319 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD39042  Allium peninsulare Beecher Crampton 1962-4-24 6319 Yuba 5 miles east Brown's Valley, Sierra Foothill Range Field Station. Comment
  UCD138594  Allium peninsulare Beecher Crampton 1962-4-24 6319 Yuba UC Sierra Foothill Range Field Station, 5 miles east Brown's Valley. Comment
  CAS-BOT-BC132066  Allium peninsulare var. peninsulare Gordon H. True 1963-5-9 1227 Yuba Just east of Parks Bar bridge, South Yuba River about 1 mile west of Timbuctoo 79 Comment
  CAS-BOT-BC132067  Allium peninsulare var. peninsulare Gordon H. True 1965-6-9 1988 Yuba Rock Creek just east of old McCourtney Road Bridge, Nevada Co., 14 miles east of Wheatland 182 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
  UCD138625  Allium sanbornii var. sanbornii L. K. Mann 1957-4-19 s.n. Yuba along road from Dobbins to Camptonville. About 1 mile past Dobbins. Comment
  UCD143723  Allium serra L. K. Mann 1958-4-20 s.n. Yuba bulbs 3 miles north of Rumsey, Califronia on road 16 toward Clear Lake. Mostly on right side going north. Comment
  CHSC87306  Allotropa virgata Lowell Ahart 2004-4-27 10758 Yuba West of the water ditch, about 150 yards northwest of where the drainage crosses the road, about 1/2 mile (air) southeast of Woodleaf. 983 Comment
  SJSU10213  Alnus incana subsp. tenuifolia C. W. Sharsmith 1983-6-8 8794 Yuba Rose Ranch c. 4 mi NE of Strawberry Valley (Yuba Co) on La Porte-Quincy Rd; Yuba & Sierra county boundary 1432 Comment
  CHSC108186  Alnus rhombifolia Lowell Ahart 2011-6-7 17385 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
  JEPS118331  Alnus rhombifolia Lowell Ahart 2011-6-7 17385 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
  UC1135121  Alnus rhombifolia M. A. Elvin 1933-7-14 51 Yuba Greenville Smartsville Quadrangle Comment
  CHSC97658  Alopecurus saccatus Lowell Ahart 2007-5-12 13821 Yuba Bottom of a vernal pool, about 100 feet northeast of a culvert, about 80 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCD32893  Alopecurus saccatus Beecher Crampton 1965-5-11 7324 Yuba Yuba County, 2.5 miles S.W. Brown Valley. Comment
  UCD55947  Alopecurus saccatus Beecher Crampton 1965-5-11 7324 Yuba 2.5 miles southwest of Brown's Valley. Comment
  CHSC69409  Amaranthus albus Lowell Ahart 1997-8-13 7869 Yuba 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 air miles east of Browns Valley. 91 Comment
  CDA31982  Amaranthus hybridus L. 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 Comment
  RSA726802  Amaranthus hybridus L. Ahart 2007-6-30 14239 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  RSA749527  Amaranthus powellii George K. Helmkamp, E. Helmkamp 2008-10-6 14209 Yuba Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  UCR201766  Amaranthus powellii George K. Helmkamp, E. A. Helmkamp 2008-10-6 14209 Yuba Sacramento Valley, Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  CHSC97443  Amaranthus retroflexus Lowell Ahart 2007-5-14 13840 Yuba Dry red bare soil, east of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  CHSC81746  Ambrosia psilostachya Lowell Ahart 2001-11-2 9410 Yuba Camp Far West Reservoir, about 1/8 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 91 Comment
  JEPS103445  Ambrosia psilostachya Lowell Ahart 2002-10-10 9976 Yuba On the W 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
  UC1042419  Ambrosia psilostachya J. Thomas Howell 1951-8-21 28288 Yuba near Camptonville; Sierra Nevada 762 Comment
  CAS-BOT-BC55576  Ambrosia psilostachya John Thomas Howell 1951-8-21 28288 Yuba Near Comptonville 762 Comment
  RSA88085  Ambrosia psilostachya J. T. Howell 1951-8-21 28288 Yuba Near Camptonville 762 Comment
  CHSC116310  Ammannia coccinea Lowell Ahart 2015-11-19 20684 Yuba 100 yards or more north of the spillway area, below the high water line, west side of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  CHSC76282  Ammannia coccinea Lowell Ahart 1999-9-17 8244 Yuba On the margins of a rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice rice dryer, about 5miles (air) northeast of Marysville. 24 Comment
  UCD81496  Amsinckia menziesii Christopher Michael Bronny 2009-4-1 8 Yuba Oat Hills' area of Sierra Nevada foothills. 194 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
  CHSC90336  Anagallis arvensis Lowell Ahart 2005-3-11 11599 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
  CHSC97225  Anagallis arvensis Lowell Ahart 2007-6-22 14221 Yuba Near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC97636  Anagallis arvensis Lowell Ahart 2007-5-14 13850 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS113619  Anagallis arvensis Lowell Ahart 2007-5-14 13850 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  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
  UCD117557  Anagallis arvensis Barbara Yungert 1974-4-25 88 Yuba SC-14 project area, Sierra Foothill Field Station. Comment
  RSA10978  Andropogon glomeratus C. B. Wolf 1927-11-5 1436 Yuba Roadside swale, 8 mi. from Marysville on road to Browns Valley. Comment
  CDA31475  Andropogon virginicus H. Crane 1931-4-3 Yuba 0 Comment
  HSC8924  Andropogon virginicus T. F. Newman 1964-2-22 9 Yuba 10 miles N of Marysville on Alt. 40, Rameriz Rd. Comment
  RSA88333  Andropogon virginicus G. H. True 1951-6-6 s.n. Yuba meadows near Parks Bar Comment
  UCD56093  Andropogon virginicus R. M. Love 1952-10-31 s.n. Yuba 13 miles east of Marysville. 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
  JEPS120985  Andropogon virginicus var. virginicus Lowell Ahart 2013-11-30 19307 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
  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
  CHSC70780  Antennaria argentea B. Castro; L. Gehrung 1995-6-2 573 Yuba Ca 2 air mi SE of Strawberry Valley, 0.5 to 0.8 mi N of the N Fork Yuba River, on S-trending ridge to Weed Point. Along both sides of USFS Rd 20N81. 1021 Comment
  JEPS83335  Antirrhinum vexillocalyculatum subsp. intermedium David M. Thompson 1983-9-11 380 Yuba 0.4 mi n Hwy. 49 and middle of bridge over Middle Yuba River (near town of Log Cabin, just n of Nevada County line); Camptonville Quad. (7.5', 1969) 480 Comment
  RSA716505  Aphanes occidentalis L. Ahart 2005-3-11 11598 Yuba W side of the poor dirt road, 1/2 miles W of Marysville Road, 1/2 miles W of Marysville Road, 1/4 mile N oa Parking area 3, Daugherty Hill Wildlife area, Donovan Hill Management, 1/4 mile N of Loma Rica Road, 5 miles air NE of Loma Rica 345 Comment
  JEPS117429  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
  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
  CAS-BOT-BC171648  Aralia californica Lowell Ahart 1980-7-25 2483 Yuba Near Slate Creek, Sierra Nevada 1200 Comment
  UCD117489  Arbutus menziesii Kathleen Kehiler 1975-4-30 76 Yuba Along Oregon Hill Road between Bullards Bar Reservoir and Challenge. Comment
  UCR189625  Arbutus menziesii George K. Helmkamp, E. A. Helmkamp 2007-8-29 12838 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 Comment
  UCD52283  Arctostaphylos mewukka B. F. Smith 1968-9-20 89 Yuba Gochette Ranch; 3 miles east of Challenge. 883 Comment
  CAS-BOT-BC38553  Arctostaphylos mewukka subsp. truei Volney Rattan 1880-1-1 s.n. Yuba Yuba Co. 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-BC48247  Arctostaphylos viscida subsp. viscida Alice Eastwood 1921-5-22 10599 Yuba Los Vergils Comment
  CAS-BOT-BC137559  Aristida oligantha Roxana S. Ferris 1927-11-5 6942 Yuba 7 miles from Brown Valley on Marysville Road. 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
  POM266630  Aristida oligantha J. C. Roos 1939-7-3 1517 Yuba plains near Marysville Comment
  UCD56508  Aristida oligantha Beecher Crampton 1974-10-11 9095 Yuba 3 miles southwest of Brown's Valley, along Hwy. 20. Comment
  LA76973  Aristolochia californica C. B. Adams; 1930-10-13 1741 Yuba Small creek flowing into Yuba River on Browns Valley to Smartsville Road 152 Comment
  RSA1885  Aristolochia californica C. B. Wolf 1930-10-13 1001 Yuba On Browns Valley - Smartsville Rd. 152 Comment
  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
  CDA24669  Armoracia rusticana A. Worledge 1944-1 Yuba 0 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
  CHSC97754  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
  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
  UC1119535  Artemisia douglasiana N. French 1933-6-22 82 Yuba 2 mi w Dobbin; Smartsville Quadrangle Comment
  SBBG1383  Asarum hartwegii H. and M. Dearing 1939-5-8 3294 Yuba near New York Crk, near Brownsville 762 Comment
  CDA22420  Asarum hartwegii Yuba County School Children 1930-4-12 s.n. Yuba [No further data.] 0 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
  UCD121288  Asclepias cordifolia Barbara Yungert 1974-5-6 124 Yuba South side of road, SC-13 project area, Sierra Foothill Field Station. Comment
  UCR194899  Asclepias fascicularis George K. Helmkamp, E. A. Helmkamp 2007-5-26 12139 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
  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
  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
  CHSC87927  Aspidotis densa Lowell Ahart 2004-5-21 10937 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
  CHSC62418  Aster radulinus L. P. Janeway 1993-9-7 4590 Yuba Plumas National Forest. About 3 mi east of Woodleaf, ca 3 mi southwest of Clipper Mills. 1043 Comment
  CHSC69131  Aster radulinus Lowell Ahart 1997-8-7 7829 Yuba Peterson Ridge Road, about 3 miles (air) east of Challenge. 762 Comment
  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
  CHSC69136  Asyneuma prenanthoides Lowell Ahart 1997-8-7 7816 Yuba Near a branch of Little Oregon Creek, on the west side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  JEPS113777  Athyrium filix-femina subsp. cyclosorum Lowell Ahart 2007-8-7 14410 Yuba Hampshire Creek Meadow, about 80 yards east of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  CAS-BOT-BC66030  Athyrium filix-femina var. cyclosorum W. Fred Ayres Summer 1925 s.n. Yuba unspecified Comment
  CHSC90341  Athysanus pusillus Lowell Ahart 2005-2-28 11563 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. 400 Comment
  RSA715712  Athysanus pusillus L. Ahart 2005-2-28 11563 Yuba West of a poor dirt road, about 0.5 mile W of Marysville Road, about 0.5 mile N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 0.5 mile N of Loma Rica Road, about 5 miles (air) NE of Loma Rica. 400 Comment
  SEINET7075556  Athysanus pusillus 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
  UCD114254  Athysanus pusillus Barbara Yungert 1974-4-16 44 Yuba Campbell Valley, Sierra Foothill Field Station. Comment
  UCD56176  Avena barbata Beecher Crampton 1962-4-17 6170 Yuba Ca. 2 miles south of Marysville. Island Road and State Hwy. 24. 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
  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
  UCD123527  Bacopa rotundifolia C. F. Dunshee 1925-1 s.n. Yuba Sacramento Valley. Comment
  CAS-BOT-BC16371  Barbarea orthoceras Lowell Ahart 1979-6-4 s.n. Yuba Along the road at Slate Creek. 1000 Comment
  CHSC43813  Barbarea orthoceras Lowell Ahart 1979-6-4 1924 Yuba Near a stream, along the county road, west of the bridges across Slate Creek. 640 Comment
  CHSC87349  Berberis aquifolium var. dictyota Lowell Ahart 2004-4-27 10770 Yuba About 20 yards north of a drainage, about 50 yards east of the road, about 1/2 mile (air) southeast of Woodleaf. 931 Comment
  UCD95057  Berberis aquifolium var. dictyota Kathleen Keliher 1975-4-30 72 Yuba 1.5 miles E of Dobbins on Marysville Road, entrance to Middle brook Ranch. 609 Comment
  CAS-BOT-BC75960  Berberis pumila L. S. Rose 1931-4-14 s.n. Yuba Brownsville. Comment
  CHSC76267  Bidens frondosa Lowell Ahart 1999-9-17 8235 Yuba On the south side of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 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
  CAS-BOT-BC31388  Bolboschoenus robustus A. S. Leopold 1956-7-18 s.n. Yuba 3 miles NW of Rio Oso Post Office. Comment
  CDA20322  Bothriochloa pertusa E. Storm, D. Flavell 2005-3-7 PDR 1295306 Yuba Browns Valley, UC Field Station. 0 Comment
  JEPS28076  Boykinia occidentalis Rimo Bacigalupi and L. Heckard 1961-6-16 7831 Yuba on w slope of canyon North Fork of the Yuba River (just above and w of Bullards Bar Dam (second and upper crossing of this same brook)); canyon of N. Fork of the Yuba River 586 Comment
  POM161344  Boykinia occidentalis R. C. Bacigalupi 1927-7-2 1590 Yuba Highway to Downieville about 8 mi NE of Camptonville. Comment
Read comments
Nov 9 2011
  UCD82292  Boykinia occidentalis Robin McMaster 1973-6-24 501 Yuba Oregon Creek Campground. Comment
  CAS-BOT-BC145441  Brachypodium distachyon J. T. Howell; Gordon H. True 1969-6-24 5092 Yuba Vineyard Creek ca. 4 miles south of Smartville on Beale AFB Road. 152 Comment
  CHSC107562  Brachypodium distachyon Lowell Ahart 2011-6-7 17422 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS118354  Brachypodium distachyon Lowell Ahart 2011-6-7 17422 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  RSA116442  Brachypodium distachyon Beecher Crampton 1957-6-5 4121 Yuba along Hwy. 20, 10 miles east of Marysville. Comment
  UCD33668  Brachypodium distachyon Beecher Crampton 1971-6-18 8741 Yuba Yuba County, Sierra Foothill Range Field Station, ca. 6.5 miles east of Browns Valley, east of headquarters. 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
  CAS-BOT-BC186700  Brassicaceae Lowell Ahart 1974-5-18 s.n. Yuba About 5 miles west of Loma Rica 300 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
  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
  UCD57363  Briza maxima Beecher Crampton 1969-5-12 8445 Yuba 2 miles west of Smartsville. State Hwy. 20. Comment
  CAS-BOT-BC145503  Briza minor Lowell Ahart 2007-5-12 13822 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC97656  Briza minor Lowell Ahart 2007-5-12 13822 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113727  Briza minor Lowell Ahart 2007-5-12 13822 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS118725  Briza minor L. P. Janeway and Melanie Williams, Tim Hanson 2011-6-9 10378 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. French Corral 7.5' quad. Comment
  RSA726568  Briza minor L. Ahart 2007-5-12 13822 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  SEINET7067145  Briza minor A. G. Vestal 1947-4-30 s.n. Yuba About 5.1 miles west of Smartville. Coordinate datum: NAD27. UTM Zone 10, 641421mE, 4340515mN. Comment
  UCD57408  Briza minor Beecher Crampton 1962-4-24 6300 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  SEINET4344873  Briza minor C. Aarstad 1979-4-28 s.n. Yuba at junct. of Rt. 20 and N. fork of Yuba River in Browns Valley. 183 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
  SEINET10533747  Brodiaea bridgesii Lewis S. Rose 1940-5-28 Rose 40404 Yuba Dobbins. 1700 feet. Comment
  UCD149961  Brodiaea californica William Anderson 1965-5-16 s.n. Yuba Loma Rica. 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
  UCR231316  Brodiaea californica var. californica George K. Helmkamp, E. A. Helmkamp 2011-5-6 17196 Yuba East edge of Sacramento Valley, Camp Far West Road, 2.3 miles northwest of the junction at Camp Far West Reservoir, 5.3 miles NE (53 deg. ) of Wheatland 55 Comment
  UCD77172  Brodiaea coronaria Robert E. Preston 2004-6-12 2256 Yuba 1.6 mi SW of Camptonville, along Marysville Rd, 0.2 mi W of its jct with Hwy 49. 762 Comment
  UCR169011  Brodiaea elegans David Charlton 2005-5-16 8003 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-BC484283  Brodiaea elegans subsp. elegans Martin Georges 1953-7-19 s.n. Yuba Lake Vera, North Fork, Yuba River 96 Comment
  JEPS28072  Brodiaea minor Rimo Bacigalupi, and L. Heckard 1961-6-16 7828 Yuba 0.2 mi. w. of Rte. 49 on rd. to Bullard Bar Dam and Dobbins (Tahoe Nat'l Forest); Tahoe Nat'l Forest 762 Comment
  UCD77179  Brodiaea minor Robert E. Preston 2002-6-28 1895 Yuba Brownsville, at jct Willow Glen Rd and Frenchtown Rd, behind Post Office. 625 Comment
  UCR231314  Brodiaea minor George K. Helmkamp, E. A. Helmkamp 2011-5-6 17198 Yuba East edge of Sacramento Valley, Camp Far West Road, 2.3 miles northwest of the junction at Camp Far West Reservoir, 5.3 miles NE (53 deg. ) of Wheatland 55 Comment
  RSA151938  Brodiaea minor Rimo C. Bacigalupi, L. R. Heckard, Ruth D. Sanderson, G. Bacigalupi 1952-6-20 3759 Yuba Along road from Brownsville to Oregon House, just N of Washington Mill and 1.5 miles due S of Brownsville. 610 Comment
  SEINET12058489  Brodiaea minor F. H. Utech 1990-6-5 90 -857 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  CAS-BOT-BC484573  Brodiaea purdyi Lewis S. Rose 1940-5-28 40402 Yuba Oregon House 457 Comment
  CHSC115905  Brodiaea sierrae L. P. Janeway 2015-6-29 11785 Yuba Northern High Sierra Nevada. Plumas National Forest; Weiss Hill Meadow, a large meadow 600 air-km east-southeast of junction of Weiss Hill Road and Forbestown Road; at the head of a minor northwestern tributary to New York Creek. 853 Comment
  CHSC69158  Brodiaea sierrae Lowell Ahart 1997-8-7 7826 Yuba On the west side of the dirt road, near a unnamed stream, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  CHSC71464  Brodiaea sierrae Lowell Ahart 1998-7-19 8050 Yuba On dry rocky serpentine soil, on the north side of the dirt road, about 3/4 mile southeast of Woodleaf. 960 Comment
Read comments
Jan 29 2013
  UCD78202  Brodiaea sierrae R. E. Preston 2002-6-28 1894 Yuba Brownsville, at jct Willow Glen Rd and Holmer Way. 626 Comment
  UCD78204  Brodiaea sierrae Robert E. Preston 2004-6-19 2262 Yuba 1.7 mi NE of Challenge, along La Porte Rd. 944 Comment
  RSA319549  Bromus Patricia Wilder 1971-6-23 5204 Yuba Feather River. Two miles southeast of Forbestown on Challenge cut-off near junction with Forbestown Road. 762 Comment
  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
  HSC9153  Bromus catharticus T. F. Newman 1965-10-9 6553 Yuba Carnes Ranch, 10 mi. N of Marysville Comment
  CDA14560  Bromus ciliatus G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3037 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  UCD58444  Bromus commutatus Beecher Crampton 1957-6-5 4146 Yuba 1/2 mile W of Oregon House Post Office. 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
  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
  HSC9201  Bromus hordeaceus T. F. Newman 1964-4-12 50 Yuba 8.5 mi. N of Marysville on Alt. 40., Boyer Rd. Comment
  SEINET3439301 Image available Bromus hordeaceus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17204 Yuba East edge of Sacramento Valley: junction of Camp Far West Road and Spenceville Road, 5.4 mi NE of Wheatland Comment
  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
  SEINET4391216  Bromus hordeaceus C. Aarstad 1979-4-28 s.n. Yuba At junct of Rt. 20 and N fork of Yuba in Browns Valley 183 Comment
  CAS-BOT-BC162367  Bromus madritensis Peter H. Raven 1953-5-9 s.n. Yuba 3.7 miles from Browns Valley on Challenge Road. Comment
  UCD58999  Bromus madritensis Beecher Crampton 1962-4-24 6270 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCD59028  Bromus madritensis Beecher Crampton 1957-6-5 4140 Yuba 1 mile east of Stanfield Hill. Comment
  CAS-BOT-BC162207  Bromus orcuttianus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54081 Yuba Sierra Nevada. About 2 miles northeast of Dobbins on Oregon Hill Road. 701 Comment
  SEINET3450783  Bromus orcuttianus Unknown 2003-7-2 10340 Yuba Dobbins, Dobbins, about 2 air miles north, about 200 yards south of the 4-H Camp on the west side of Oregon Hill Road, about 0.5 miles north of Marysville Road Comment
  UCD148339  Bromus orcuttianus G. Douglas 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
  JEPS118724  Bromus racemosus L. P. Janeway and Melanie Williams, Tim Hanson 2011-6-9 10375 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. French Corral 7.5' quad. Comment
  UCD32530  Bromus sterilis Beecher Crampton 1954-5-10 1846 Yuba Yuba County, 6 miles south of Camptonville, along highway 49, north slope near the middle of the Yuba River. Comment
  UCD59706  Bromus sterilis Beecher Crampton 1954-5-10 1846 Yuba Hwy. 49, north slope of the middle Yuba River, 6 miles south of Camptonville. Comment
  UCD59722  Bromus sterilis Beecher Crampton 1966-6-14 7744 Yuba 1 mile east of Brownsville. 731 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
  CHSC96476  Callitriche heterophylla var. bolanderi Lowell Ahart 2007-4-17 13684 Yuba In shallow water of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  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
  CHSC32093  Calocedrus decurrens L. Ahart 1975-10-26 993 Yuba Home of Eugene Ahart, Fruitland Rd. 33 Comment
Read comments
Aug 28 2018
  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
  UCD37888  Calochortus albus Beecher Crampton 1962-4-24 6314 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UC477576  Calochortus coeruleus L. S. Smith May 1931 Yuba Camptonville Dist. Tahoe National Forest Comment
  CAS-BOT-BC487812  Calochortus coeruleus L. S. Smith 1931-5-1 s.n. Yuba Near Camptonville, Rebel Ridge 548 Comment
  CAS-BOT-BC483431  Calochortus luteus Mrs. J. E. Cramsie 1923-5-22 s.n. Yuba Smartville Comment
  CAS-BOT-BC483433  Calochortus luteus Lewis S. Rose 1940-5-28 40401 Yuba Oregon House 457 Comment
  CAS-BOT-BC483435  Calochortus luteus Alice Eastwood 1921-5-22 10546 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
  CHSC10605  Calochortus monophyllus Lowell Ahart 1968-5-15 Yuba Near Bullards Bar Dam. 914 Comment
  CHSC32088  Calochortus monophyllus L. Ahart 1973-5-6 212 Yuba Near Challenge. 762 Comment
  SBBG22463  Calochortus monophyllus H. and M. Dearing 1939-5-6 3283 C Yuba near Challenge Comment
  UCD139559  Calochortus monophyllus K. Lui 1998-5-25 35 Yuba Tahoe National Forest, Indian Rock, at Halls Ranch Trailhead, roadside ditch; 1 km west of Indian Valley Campground on Hwy 49. 1530 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-BC493080  Calochortus monophyllus Elmer I. Applegate 1934-5-2 8891 Yuba Near Indian Valley, northern Yuba County Comment
  CAS-BOT-BC493110  Calochortus monophyllus Peter H. Raven 1953-5-9 5470 Yuba 1 mile from Brownsville on road to Challenge 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
  RSA232243  Calochortus monophyllus James Henrickson 1969-5-25 3448 Yuba Ca. 60 miles northeast of Yuba City, 1 mile west of Sierra County line along Highway 49 Comment
  SEINET12044650  Calochortus monophyllus L. S. Rose 1931-1 s.n. Yuba Woodleaf, Sierra Nevada Comment
  SEINET12044652  Calochortus monophyllus L. S. Rose 1933-1 33196 Yuba Brownsville 640 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
  JEPS28074  Calochortus superbus Rimo Bacigalupi and L. Heckard 1961-6-16 7829 Yuba 0.2 mi. w. of Hwy. 49 on rd. to Bullard Bar Dam and Dobbins (Tahoe Nat'l Forest); Tahoe Nat'l Forest 762 Comment
  SEINET5725034 Image available Calochortus superbus Roy H. Saigo 1961-1 43 Yuba 16.3 miles west of Marysville, on route 20; Marysville 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
  CHSC69132  Calycadenia multiglandulosa Lowell Ahart 1997-8-7 7805 Yuba On the north side of New York Flat Road, about one mile northwest of La Porte Road, about 1 mile north of Brownsville. 731 Comment
  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
  JEPS118681  Calycadenia multiglandulosa L. P. Janeway 2011-7-5 10487 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. French Corral 7.5' quad. Comment
  JEPS98515  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-BC270730  Calycadenia multiglandulosa Lowell Ahart 1977-7-31 s.n. Yuba Near Brownsville 600 Comment
  CAS-BOT-BC270731  Calycadenia multiglandulosa David D. Keck 1932-7-1 1610 Yuba 2 miles E of Dobbins, Stanfield Hill 762 Comment
  CAS-BOT-BC270733  Calycadenia multiglandulosa David D. Keck 1932-7-1 1610 Yuba 2 miles E of Dobbins, Stanfield Hill 762 Comment
  UC1876172  Calycadenia multiglandulosa Gerald D. Carr 1971-5-23 554 Yuba 0.6 mi N 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
  SEINET11836280  Calycadenia oppositifolia L. S. Rose 1940-1 40399 Yuba Oregon House 457 Comment
  CAS-BOT-BC90912  Calycanthus occidentalis Lowell Ahart 1980-6-19 2413 Yuba Sierra Nevada. 4.5 miles east of Challenge. 900 Comment
  JEPS127132  Calycanthus occidentalis Lowell Ahart 2016-8-30 21319 Yuba About one mile east of Challenge. Comment
  UCD137935  Calycanthus occidentalis Barbara Yungert 1974-5-20 166 Yuba along Porter Creek south of station headquarters, Sierra Foothill Field Station. Comment
  OBI48880  Calyptridium monospermum Lewis S. Rose 1939-6-6 39230 Yuba 2 mi NE of Clipper Mills 1173 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
  CHSC110459  Camassia quamash subsp. breviflora L. P. Janeway 2013-7-2 11180 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, on of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. 815 Comment
  JEPS124108  Camassia quamash subsp. breviflora Lowell Ahart, Susan Kephart, Jim Kephart 2015-6-4 20195 Yuba About 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. Comment
  CHSC32105  Camissonia campestris subsp. campestris L. Ahart 1976-4-10 1053 Yuba Along edge of rd, end of rd by Peach Tree Country Club, ca. 1 mi e of Maysville, from the club go east ca. 3 mi until main drive ends, then take the private drive to your right and this is where the plants are found. 27 Comment
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Jul 7 2020
  UCD114530  Cardamine Kathleen Keliher 1975-4-1 50 Yuba end of road between old station headquarters and Yuba River, H 8-11 project area, Sierra Foothill Field Station. 91 Comment
  CAS-BOT-BC520406  Cardamine breweri Lowell Ahart 1978-5-31 1748 Yuba Edge of the South Fork of the Feather River, 0.5 mi above the Golden Trout Crossing, approx. 4 mi W of Sly Creek Reservoir, W of Strawberry Valley 750 Comment
  CHSC97495  Cardamine oligosperma Lowell Ahart 2007-5-12 13781 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
  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
  JEPS98356  Carduus pycnocephalus subsp. pycnocephalus Lowell Ahart 2000-5-25 8402 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
  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
  SEINET13327107  Carex angustata L. Ahart 2010-7-27 16917 Yuba Notrh side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam 1219 Comment
  CHSC105844  Carex aurea Lowell Ahart 2010-7-27 16915 Yuba Meadow on the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. 1219 Comment
  JEPS117660  Carex aurea Lowell Ahart 2010-7-27 16915 Yuba Meadow on the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam 1219 Comment
  CHSC115738  Carex cyrtostachya P. F. Zika; B. Wilson, L. Ahart, L. Janeway 2011-8-5 25718 Yuba Hampshire Meadow, 1 air mile E of Clipper Mills, northr Sierra Nevada Highlands. 1025 Comment
  CHSC97201  Carex cyrtostachya Lowell Ahart 2007-8-7 14419 Yuba Along a small stream, about 100 yards northwest of the dirt road, north part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills. 1021 Comment
  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
  CHSC96751  Carex echinata subsp. echinata Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-13 14299 Yuba On the south side of Hampshire Creek, on the southeast side of a large wet meadow, about 80 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS95415  Carex echinata subsp. echinata Lowell Ahart 1994-6-27 7385 Yuba 4 mi NE of Strawberry Valley (N of the dirt county road from La Porte Road to the Poverty Hill Mine, E of Schwartz Meadow) 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
  CAS-BOT-BC19990  Carex feta Beecher Crampton 1966-6-14 7753 Yuba 1 mile east of Brownsville, La Porte Road. Comment
  JEPS104244  Carex feta Lowell Ahart 2003-7-6 10361 Yuba In a meadow, east of the power line, about 60 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  SEINET11125895 Image available Carex feta Unknown 2010-1 24978 Yuba W side of Challenge Cutoff, 2.5 air km NE of Brownsville, Northern Sierra Nevada Highlands (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
  SEINET10650510  Carex feta Lewis S. Rose 1940-5-28 Rose 40384 Yuba Browns Valley. 61 Comment
  SEINET7558578 Image available Carex feta Andrew L. Hipp, Glen C. Clifton 1999-5-29 385 Yuba Marysville Road. 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
  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-BC146654  Carex hirtissima Lewis S. Rose 1940-5-28 40386 Yuba Browns Valley 60 Comment
  CAS-BOT-BC146662  Carex hirtissima Lewis S. Rose 1940-5-28 40386 Yuba Browns Valley 60 Comment
  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
  CHSC84464  Carex hirtissima Lowell Ahart 2003-7-6 10359 Yuba In meadow, east of the power line, about 60 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  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
  JEPS87677  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
  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
  JEPS87733  Carex hirtissima Lowell Ahart 1994-6-27 7386 Yuba ca. 4 mi. n.e. Strawberry Valley (s. side of small stream, e. of logging rd., e. of Schwartz Meadow, on e. side of La Porte Rd.) 1219 Comment
  RSA769203  Carex hirtissima P. F. Zika 2010-6-22 24979 Yuba West side of Challenge Cut-off, 2.5 air km northeast of Brownsville, Northern Sierra Nevada Highlands 755 Comment
  SEINET13709580  Carex hirtissima Lowell William Ahart, Lowell William Ahart 2003-1 10359 Yuba 5 Mi. N of Dobbins Near Fountain Hill Road (39 Deg 26'11.7"N, 121 Deg 12'07.3"W) 2746 Ft. 837 Comment
  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
  JEPS113729  Carex laeviculmis Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14295 Yuba On the south side of Hampshire Creek, on the south 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
  JEPS95438  Carex lemmonii Lowell Ahart 1994-6-5 7298 Yuba about 3 (air) miles E of Forbestown (Costa Creek, on the S side of Forbestown Road) 853 Comment
  UCD81490  Carex lenticularis Christopher Michael Bronny 2009-3-23 2 Yuba Lower Sierra Nevada foothills. Area near Loma Rica. Brown's Valley Irrigation Ditch. 152 Comment
  CAS-BOT-BC31686  Carex mariposana Lewis S. Rose 1940-5-28 40380 Yuba Browns Valley 60 Comment
  CAS-BOT-BC344997  Carex mendocinensis 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 E of Clipper Mills and 1.8 air km NW of North Yuba River. 1026 Comment
  CHSC115302  Carex multicaulis Lowell Ahart 2015-4-30 20125 Yuba Open forest, on the south side of the gravel road, about 10 yards east of the gate, about 3/4 mile (air) southeast of Woodleaf. Mixed Evergreen Forest. 948 Comment
  JEPS100270  Carex multicaulis Dean W. Taylor 2001-5-9 17643 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  CAS-BOT-BC32183  Carex multicaulis Lowell Ahart 1969-5-18 s.n. Yuba Slate Creek, 10 miles S of La Porte. 914 Comment
  CAS-BOT-BC117395  Carex senta Holiday Matchett 1965-5-1 80 Yuba 10 miles W of Strawberry Valley on Lost Creek. 609 Comment
  UCD140834  Carex senta Holida Matchett 1965-5-1 80 Yuba 10 miles west of Strawberry Valley on Lost Creek. 609 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
  UC1254610  Carex stipata var. stipata Beecher Crampton 1966-6-14 7758 Yuba 1 mi e Brownsville (La Porte Road) Comment
  SEINET7577235 Image available Carex subfusca Andrew L. Hipp, Glen C. Clifton 1999-5-29 400 Yuba Little Oregon Creek. Comment
  CAS-BOT-BC499134  Carex xerophila Peter F. Zika; L. P. Janeway 2012-5-16 25871 Yuba Just E of junction of Jiggs Road and Ponderosa Way, 3 air km W of Ruff Hill, Brownsville 715 Comment
  CHSC102952  Carex xerophila L. P. Janeway 2006-5-24 8626 Yuba Northern Sierra Nevada Foothills. Along Forsythe Road 2.7 road km south of New York House Road; above Prince Albert Creek. 604 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
  RSA0058984  Carex xerophila Peter F. Zika, L. P. Janeway 2012-5-16 25871 Yuba Just E of junction of Jiggs Road and Ponderosa Way, 3 air km W of Ruff Hill, Brownsville. Northern Sierra Nevada Foothill/Highlands boundary (n SNF/H). Adjacent to Brownsville dump. 715 Comment
  SD257103  Carex xerophila P. F. Zika, L. P. Janeway 2012-5-16 25871 Yuba Just E of junction of Jiggs Road and Ponderosa Way, 3.0 air km W of Ruff Hill, Brownsville. 715 Comment
  SEINET12650009 Image available Carex xerophila L. P. Janeway 2006-1 8626 Yuba 604 Comment
  UCD168922  Carex xerophila L. P. Janeway 2006-5-24 8626 Yuba Northern Sierra Nevada Foothills. Along Forsythe Road 2.7 road km south of New York House Road; above Prince Albert Creek. 604 Comment
  SEINET10806562  Carex xerophila Peter F. Zika, Lawrence P. Janeway 2012-5-16 Zika 25871 Yuba E of junction of Jiggs Road and Ponderosa Way, 3 air km W of Ruff Hill, Brownsville. Northern Sierra Nevada Foothill/Highlands boundary (nSNF/H) 715 Comment
  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
  UCD81500  Castilleja attenuata Christopher Michael Bronny 2009-4-1 12 Yuba Oat Hills' area of Sierra Nevada foothills. 173 Comment
  UCD122329  Castilleja attenuata W. R. Powell 1968-4-24 1475 Yuba Along Spring Valley Road, 1 1/2 miles northwest of Browns Valley. 106 Comment
  CHSC96570  Castilleja lacera L. P. Janeway 2006-5-24 8632 Yuba Northern Sierra Nevada Foothills. South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. 483 Comment
  JEPS113299  Castilleja lacera L. P. Janeway 2006-5-24 8632 Yuba Northern Sierra Nevada Foothills. South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. Comment
  SJSU11535  Castilleja lineariloba J. B. Willis Jr. 1969-4-19 Yuba 3 mi W of Smartville on Hammonton-Smartville Rd 182 Comment
  UCD122574  Castilleja lineariloba Barbara Yungert 1974-4-17 59 Yuba North of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  JEPS123877  Castilleja pruinosa Lowell Ahart 2015-4-30 20135 Yuba About 2 1/4 miles (air) southwest of the Brownsville, about 2 miles (air) northeast of Rackerby. Comment
  SD147493  Castilleja pruinosa Lowell Ahart 1980-6-19 2411 Yuba 4 miles east of Challenge 900 Comment
  SJSU14229  Castilleja pruinosa N. A. Hopkins 1989-4-28 1481 Yuba Ridge Rd to Allegheny c. 3 mi off Hwy 49 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
  UCD110816  Ceanothus cuneatus Christopher Mallek 2008-1 s.n. 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
  CAS-BOT-BC50709  Ceanothus integerrimus L. S. Smith 1939-4-19 2815 Yuba Near Camptonville 609 Comment
  UCD112007  Ceanothus integerrimus Barbara Yungert 1974-5-1 101 Yuba South of the road, SC-14 project area, Sierra Foothill Field Station. Comment
  SEINET5339313  Ceanothus integerrimus D. Kaplan s.n. Yuba Dobbins, Ca., Hwy 49 roadside. 1067 Comment
  SEINET5339329  Ceanothus integerrimus M. Dailey 2003-1 33 Yuba 12 mi South of Grass Valley, Calif., on Hiway 20. 533 Comment
  CAS-BOT-BC50721  Ceanothus integerrimus var. macrothyrsus Peter H. Raven 1953-5-9 5466 Yuba 3 miles e. of Brownsville on road to Bangor Comment
  CAS-BOT-BC50587  Ceanothus lemmonii John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54071 Yuba Sierra Nevada - 1/4 miles southwest of Bullards Bar Dam on road to Challenge 609 Comment
  CAS-BOT-BC50588  Ceanothus lemmonii Peter H. Raven 1953-5-9 5473 Yuba 1 mile from Brownsville on road to Challenge Comment
  CHSC93933  Ceanothus lemmonii L. P. Janeway 2006-5-24 8610 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way 1.0 road km southeast of Robinson Mill Road; 1.2 air km southeast of Robinson Mills and Forbestown Road. 768 Comment
  RSA712847  Ceanothus lemmonii L. P. Janeway 2006-5-24 8610 Yuba Northern Sierra Nevada Foothills, along Ponderosa Way 1 road Km SE of Robinson Mill Road, 1.2 air km SE of Robbinson Mills and Forebestown road 768 Comment
  SBBG4337  Ceanothus lemmonii H. and M. Dearing 1939-5-6 3286 Yuba W of Challenge 609 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
  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
  CHSC32103  Ceanothus prostratus L. Ahart 1975-5-4 749 Yuba Near Brownsville. 609 Comment
  UCD130041  Centaurea melitensis Beecher Crampton 1971-6-18 8736 Yuba Sierra Foothill Range Field Station. Ca. 7 miles E of Browns Valley. 'Black Oak Pass' area. Comment
  UC725367  Centaurium muehlenbergii A. A. Heller 1938-6-17 15163 Yuba 5 mi e Marysville (near the Yuba River); Sacramento Valley Comment
  UC878317  Centaurium muehlenbergii Alice Eastwood 1913-7-3 3411 Yuba Wheatland Comment
  UC878346  Centaurium muehlenbergii Alice Eastwood 1913-7-3 3411 Yuba Wheatland 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
  CHSC116112  Centaurium tenuiflorum Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20637 Yuba On the west side of the outflow area at the bottom of Lake Francis Dam, Lake Francis, about 1-1/2 miles south of Dobbins. 479 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
  JEPS120966  Centaurium tenuiflorum Lowell Ahart 2013-11-30 19308 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
  JEPS124144  Centaurium tenuiflorum Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20637 Yuba Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  JEPS113452  Centromadia fitchii Lowell Ahart 2007-6-22 14210 Yuba Along a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 29 Comment
  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
  CAS-BOT-BC288825  Centromadia fitchii Mrs. S. Earle Kelley 1921-5-1 s.n. Yuba [Los Verjeles?] Comment
  CHSC97482  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-BC388245  Cerastium glomeratum Susan J. Schmickle 1977-4-16 2 Yuba At the UC Sierra Field Station, northwest off of Road 4 Comment
  CAS-BOT-BC400180  Ceratophyllum demersum W. V. Middlekauff 1955-7-4 s.n. Yuba 3 miles n.w. of Rio Oso Post Office Comment
  CAS-BOT-BC207378  Cercis occidentalis Saichi Kawahara 1969-4-13 304 Yuba Park's Bar, Highway 29 at north bank Yuba River 91 Comment
  SEINET12167216  Cercis occidentalis F. H. Utech 1990-1 90 -858 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  CAS-BOT-BC140760  Chamaebatia foliolosa Brighton C. Cain 1925-8-16 38 Yuba Junction of roads from Marysville and Nevada City to Downieville 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
  CHSC76107  Chamaesyce nutans Lowell Ahart 1999-9-5 8191 Yuba On the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 Comment
  CDA4786  Chamaesyce nutans L. Ahart 1999-9-5 8191 Yuba On the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. Comment
  CHSC97567  Chamaesyce ocellata subsp. ocellata Lowell Ahart 2007-5-14 13880 Yuba Around the culvert on the east side of the poor dirt road, about 50 yards south of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS98575  Chamaesyce ocellata subsp. ocellata Lowell Ahart 2000-6-11 8469 Yuba 6 mi (air) S of Smartville (W side of Smartville Road, 2 mi N of int. with Waldo Road) 152 Comment
  CHSC78143  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2000-6-11 8467 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
  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
  JEPS115025  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2007-11-8 14580 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan 73 Comment
  RSA0037020  Chamaesyce serpillifolia subsp. serpillifolia Lowell A. Ahart 2013-11-30 19299 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  JEPS115017  Chenopodium ambrosioides var. suffruticosum Lowell Ahart 2007-11-1 14548 Yuba On the north side of Loma Rica Road, east of the Fire Station, about 3/4 mile east of Loma Rica 146 Comment
  CDA14559  Chenopodium botrys G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3036 Yuba 1.4 miles west of New Bullards Bar Dam, between Log Cabin and Camptonville. 609 Comment
  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-BC498794  Chlorogalum angustifolium J. T. Howell; Gordon H. True 1971-5-26 47612 Yuba Rocky, pebbly flats and hollows where water has stood but now dry, about 8 miles east of Marysville 30 Comment
  CHSC115914  Chlorogalum pomeridianum var. pomeridianum L. P. Janeway 2015-7-1 11797 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, one of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. 815 Comment
  CHSC115915  Chlorogalum pomeridianum var. pomeridianum L. P. Janeway 2015-7-1 11797 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, one of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. 815 Comment
  CHSC81751  Chondrilla juncea Lowell Ahart 2001-11-2 9409 Yuba On the east side of Smartville Road, about 4 miles (air) south of Smartville. 175 Comment
  CHSC83039  Chondrilla juncea Lowell Ahart 2002-10-10 9978 Yuba On the east side of the dirt road, east of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20. 166 Comment
  CHSC93154  Chondrilla juncea L. P. Janeway 1994-8-9 4725 Yuba Northern High Sierra Nevada. East side of Slate Creek about 3 mi northeast of Strawberry Valley; along Road 20N35 (road to Scales) 0.4 mi southeast of its bridge across Slate Creek. 1036 Comment
  CHSC95111  Chondrilla juncea L. P. Janeway; Erin Brandy, David Toren 2006-9-25 8888 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
  JEPS102449  Chondrilla juncea Lowell Ahart 2001-8-14 9108 Yuba On the south side of Marysville Road, about 50 yards east of the east end of Bullards Bar Dam. 609 Comment
  JEPS102507  Chondrilla juncea Lowell Ahart 2001-11-2 9409 Yuba On the east side of Smartville Road, about 4 miles (air) south of Smartville. 175 Comment
  UCR200882  Chondrilla juncea George K. Helmkamp, E. A. Helmkamp 2008-9-18 14130 Yuba Foothills, northern Sierra Nevada Mountains, Bullards Bar Dam, along Marysville Road, 6 miles southwest of its junction with CA-49 616 Comment
  RSA712897  Chondrilla juncea L. P. Janeway 1994-8-9 4725 Yuba Northern High Sierra Nevada, east side of Slate Creek about 3 miles NE of Strawberry Valley; along Road 20N35 (road to Scales) 0.4 mile southeast of its bridge across Slate Creek. 1037 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
  SEINET7042660  Cirsium occidentale A. G. Vestal 1963-5-30 s.n. Yuba Turn off to Timbuctoo at Yuba river. Smartville quadrangle UTM Zone 10, 644012mE, 4342272mN. 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-BC228729  Cistanthe umbellata Lowell Ahart 1980-8-12 2548 Yuba Along Slate Creek 1250 Comment
  LA205995  Clarkia biloba subsp. brandegeeae H. Lewis; M. Lewis 1947-6-11 389 Yuba 0.7 mi. W of Oregon House P. O. on the road to Stanfield Hill Comment
  RSA18618  Clarkia biloba subsp. brandegeeae Carl B. Wolf 1937-6-11 8779 Yuba Sierra Nevada Foothills, 1.6 miles NW of Stanfield Hill, along a fork of S. Honcut Creek 305 Comment
  UC1071949  Clarkia biloba subsp. brandegeeae H. and M. Lewis 1947-6-11 389 Yuba 0.7 mi w Oregon House Post Office (on the road to Stanfield Hill) Comment
  UCD104549  Clarkia gracilis Kathleen Keliher 1975-5-8 100 Yuba Above Dry Creek, between two cattle guards on Scott-Forbes Road, Rowell's property. 152 Comment
  CAS-BOT-BC172050  Clarkia gracilis subsp. gracilis H. Lewis; M. Lewis; M. Roberts 1951-5-19 820 Yuba 2.3 mi. east of Oregon House Comment
  UC1071988  Clarkia gracilis subsp. gracilis H. and M. Lewis, M. Roberts 1951-5-19 820 Yuba 2.3 mi e 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
  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
  SEINET7067147  Clarkia purpurea subsp. quadrivulnera 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
  SEINET7072981  Clarkia purpurea subsp. quadrivulnera A. G. Vestal 1963-5-29 s.n. Yuba About 0.4 mile west of Erle Road on Hammonton-Smartville Road. UTM Zone 10, 638165mE, 4337165mN. Coordinate datum: NAD27). Comment
  UCD147083  Clarkia purpurea subsp. quadrivulnera Chuck Hughes 2013-5-2 368 Yuba Northwest margin of Camp Far West Reservoir. 93 Comment
  UCD104954  Clarkia purpurea subsp. quadrivulnera Barbara Yungert 1974-5-1 100 Yuba Sc-13 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC165394  Clarkia stellata Rimo Bacigalupi 1927-7-2 1584 Yuba Highway to Downieville about 8 miles north east of Camptonville Comment
  CHSC70761  Clarkia stellata L. P. Janeway; Loren Gehrung, Karen Lee, Marcile Sigler, C. Sivil 1993-6-15 4384 Yuba 1.3 mi east of Woodleaf, 1.2 mi southwest of Clipper Mills; uppermost drainage of Slapjack Creek. 1043 Comment
  NY1085604  Clarkia stellata R. C. F. Bacigalupi 1927-7-2 1584 Yuba Highway to Downeville about 8 miles north east of Camptonville Comment
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Nov 9 2011
  POM161753  Clarkia stellata R. C. Bacigalupi 1927-7-2 1584 Yuba Highway to Downieville about 8 mi NE of Camptonville. Comment
  UC1730243  Clarkia stellata L. P. Janeway and Loren Gehrung, Karen Lee, Marcile Sigler, Cliff Sivil 1993-6-15 4384 Yuba 1.3 mi E of Woodleaf (1.2 mi SW of Clipper Mills, upperlmost drainage of Slapjack Creek) 1043 Comment
  UCD100707  Claytonia parviflora subsp. parviflora Barbara Yungert 1974-4-16 40 Yuba Cambell Valley, Sierra Foothill Field Station. Comment
  UCD37881  Claytonia perfoliata Beecher Crampton 1962-4-24 6305 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  SEINET11935684  Claytonia perfoliata F. H. Utech 1990-1 90 -870 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 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
  UCD123625  Collinsia heterophylla Barbara Yungert 1974-5-9 101 Yuba northeast of Upper Schubert project area, Sierra Foothill Field Station. Comment
  CHSC47689  Collinsia tinctoria Lowell Ahart 1981-6-13 2844 Yuba North-east side of McGinn Hill, east of Loma Rica. 274 Comment
  UCD33666  Collinsia tinctoria Beecher Crampton 1971-6-18 8738 Yuba Sierra Foothill Range Field Station, ca. 6.5 miles east of Browns Valley. 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
  UCR201900  Convolvulus arvensis George K. Helmkamp, E. A. Helmkamp 2008-10-6 14200 Yuba Sacramento Valley, junction of CA-65 and Ostrom No. 3 Road, southeast of Olivehurst 24 Comment
  CHSC69156  Cordylanthus tenuis subsp. tenuis Lowell Ahart 1997-8-7 7813 Yuba Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 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
  CAS-BOT-BC209883  Cornus nuttallii Lowell Ahart 1964-5-3 s.n. Yuba Near Bullard's Bar 914 Comment
  JEPS112920  Cornus nuttallii Dean W. Taylor 2001-7-31 17849 Yuba creek along Forest Road 20N35 tributary to Brushy Creek near Diamond Ravine (ca. 3 air miles SW of Union Hill) 1127 Comment
  UCD117173  Cornus nuttallii Kathleen Keliher 1975-4-30 74 Yuba Along road between Bullards Bar Dam and Challenge. 762 Comment
  SEINET12137803  Cornus nuttallii F. H. Utech 1990-1 90 -868 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  SEINET8083560  Cornus nuttallii D. E. Selleck 1979-4-28 s.n. Yuba About 3 miles north of highway junction 140 and 70. 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
  RSA715883  Crassula connata L. Ahart 2005-3-11 11607 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
  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
  CHSC97650  Crassula tillaea Lowell Ahart 2007-5-12 13788 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
  CHSC97502  Croton 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
  UCR200886  Croton setiger George K. Helmkamp, E. A. Helmkamp 2008-9-18 14129 Yuba Foothills, northern Sierra Nevada Mountains, Bullards Bar Dam, along Marysville Road, 6 miles southwest of its junction with CA-49 616 Comment
  HSC7972  Croton setiger T. F. Newman 1965-10-9 6552 Yuba Carnes Ranch, 10 mi. N of Marysville 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
  SEINET7042666  Crucianella angustifolia A. G. Vestal 1963-5-29 s.n. Yuba Along the road to Smartville, 0.4 mile southwest of road to Beale Airforce Base. Camp Far West quadrangle UTM Zone 10, 644119mE, 4329948mN. Comment
  CHSC97705  Crypsis alopecuroides Lowell Ahart 2007-11-8 14591 Yuba On the strand of Camp Far West Reservoir, about 1/4 mile north of Rock Creek, about 6 1/2 miles (air) northeast of Sheridan. 68 Comment
  JEPS115048  Crypsis alopecuroides Lowell Ahart 2007-11-8 14591 Yuba On the strand of Camp Far West Reservoir, about 1/4 mile north of Rock Creek, about 6 1/2 miles (air) northeast of Sheridan 68 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
  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-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
  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
  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
  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
  UC573355  Cupressus macnabiana H. A. Jensen 1934-11-14 376 Yuba 2 mi nw Indiana Ranch; Smartsville Quadrangle 548 Comment
  UCD110802  Cupressus macnabiana Christopher Mallek 2008-1 s.n. Yuba Daken Flat. 675 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
  NY16725  Cupressus macnabiana C. B. Wolf 1934-10-3 6151 Yuba This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  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
  SEINET10531459  Cupressus macnabiana Carl B. Wolf, E. R. Johnson 1934-10-4 Wolf 2218 Yuba Siera 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
  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
  SEINET11735639  Cupressus macnabiana Unknown 1976-1 1000 Yuba 1 mi N of Oregon House 457 Comment
  SBBG121438  Cuscuta campestris L. Ahart 2007-11-8 14578 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 242 Comment
  CHSC97652  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
  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
  UCD126295  Cuscuta howelliana F. T. Griggs 1978-5-13 s.n. Yuba on Steen property, 6 miles east of Wheatland. Comment
  CDA27730  Cuscuta japonica Todd Quist, Kevin Roush 2008-12-9 PDR# 1295536 Yuba Marysville, 5913 Garden Ave 0 Comment
  CDA41308  Cuscuta japonica B. Umino 2005-10-4 PDR 1295324 Yuba Sacramento Valley; 4838 Western Ave, Olivehurst. 0 Comment
  CHSC97730  Cuscuta pentagona Lowell Ahart 2007-11-8 14578 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  JEPS115049  Cuscuta pentagona Lowell Ahart 2007-11-8 14578 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan 73 Comment
  JEPS113724  Cynodon dactylon Lowell Ahart 2007-5-14 13845 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
  SEINET10515415  Cynodon dactylon Wiegand 1921-8-25 WIEGAND 200 Yuba Dry gravel roadside, near Marysville. 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
  JEPS118323  Cynosurus echinatus Lowell Ahart 2011-6-7 17429 Yuba East of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  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
  SEINET9756953 Image available Cyperus difformis Richard Carter 2006-7-31 Yuba 12.5 mi ENE Marysville jct. Hwy CA 20 and Hwy CA 70, by Hwy CA 20 Comment
  CHSC69456  Cyperus eragrostis Lowell Ahart 1997-8-13 7863 Yuba On the south side of Scott Forbes Road, 1/4 mile east of the intersection of Scott Forbes Road and Peoria Road, just east of Gray Drive, about 2 1/4 miles (air) east of Browns Valley. 91 Comment
  CHSC76112  Cyperus eragrostis Lowell Ahart 1999-9-5 8196 Yuba Disturbed area on the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 Comment
  CHSC96938  Cyperus eragrostis Lowell Ahart 2007-6-30 14229 Yuba Sides of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  JEPS113718  Cyperus eragrostis Lowell Ahart 2007-6-30 14229 Yuba Sides of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 29 Comment
  CAS-BOT-BC114574  Cyperus eragrostis W. V. Middlekauff 1954-9-11 s.n. Yuba 3 mi NW of Rio Oso Post Office. Comment
  CHSC116338  Cyperus erythrorhizos Lowell Ahart 2015-11-19 20683 Yuba 100 yards or more north of the spillway area, below the highwater line, west side of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  JEPS102713  Cyperus erythrorhizos Lowell Ahart 2001-11-2 9404 Yuba Camp Far West Reservoir, about 1/4 mile NEaa of the dam, about 9 miles (air) SE of Wheatland. 83 Comment
  JEPS124260  Cyperus erythrorhizos Lowell Ahart 2015-11-19 20683 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CDA2590  Cyperus esculentus L. Ahart 1999-9-5 8195 Yuba On the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. Comment
  CHSC76114  Cyperus iria Lowell Ahart 1999-9-5 8197 Yuba Disturbed area on the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 Comment
  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
  SEINET13710835  Cyperus iria Lowell William Ahart, Lowell William Ahart 1999-1 8197 Yuba 5 Mi NE of Marysville Comment
  CHSC76302  Cyperus niger Lowell Ahart 1999-9-17 8256 Yuba On the edge of a drain ditch, Sam Shintaffer Farm, on the west side of Kimball Lane, near the intersection of Kimball Lane and Hallweed Blvd., about 3/4 mile south of Sam Shnitaffer's rice dryer, about 4 1/4 miles (air) northeast of Marysville. 22 Comment
  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
  CHSC43569  Cyperus rotundus Lowell Ahart 1978-10-28 1819 Yuba In the yard of Mr. and Mrs. Marion Bew, at H and 13th Street, Marysville. 30 Comment
  NY663864  Cyperus rotundus L. Ahart 1978-10-28 s.n. Yuba H & 13th Streets, Marysville Comment
  CHSC10804  Cytisus scoparius Lowell Ahart 1968-4-21 Yuba Five miles S.E. of Challenge. 609 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
  UCD60188  Dactylis glomerata Barbara Yungert 1974-5-9 G- 7 Yuba Sierra Foothill Field Station. Along Road 1, near P 1-13 fence, W of Porter Hill. Comment
  UCR197050  Dactylis glomerata George K. Helmkamp, E. A. Helmkamp 2008-5-20 13474 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  RSA790265  Damasonium californicum James R. Shevock, Robert Holland 1985-5-6 11132 Yuba Beale Air Force Base E of Marysville. Pools adjacent to runway. 40 Comment
  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
  CHSC44559  Danthonia californica var. americana Lowell Ahart 1979-6-25 1953 Yuba Along the road gutter, there is a spring near by, about 2 miles east of Challenge. 640 Comment
  JEPS104247  Danthonia californica var. americana Lowell Ahart 2003-7-6 10368 Yuba In meadow, e of the power line, ca 60 yd nw of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  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
  UCD60681  Danthonia californica var. americana Beecher Crampton 1966-6-14 7763 Yuba 1 mile west of Brownsville. 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
  SEINET238188 Image available 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
  UCD33119  Danthonia unispicata Beecher Crampton 1966-6-14 7764 Yuba Yuba County, 1 mile east of Brownsville on La Porte road, near Brownsville Fire Station, CA div. of Forestry. Comment
  UCD102619  Darmera peltata Kathleen Keliher 1975-5-8 99 Yuba Off Forbestown Road, near Catttle guards, Rowell's property. 152 Comment
  CHSC76106  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
  JEPS118079  Daucus pusillus Lowell Ahart 2011-6-7 17370 Yuba Grassy road margin, about 50 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  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
  CAS-BOT-BC8792  Delphinium gracilentum B. T. Keller 1975-6-10 1518 Yuba Willow Glen Road, from Stanfield Hill to Brownsville, 11.5 mi. N of Junct. of Willow Glen Road & Marysville Road Comment
  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-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
  RSA149649  Delphinium hansenii Harlan Lewis, C. Epling 1941-5-26 s.n. Yuba Smartville Comment
  SEINET5338025  Delphinium hansenii C. Aarstad 1979-4-28 s.n. Yuba At junction of Rt. 20 and N. fork of Yuba River in Browns Valley 183 Comment
  UCD95782  Delphinium hansenii Barbara Yungert 1974-5-30 187 Yuba South of road, SC-13 project area, Sierra Foothill Field Station. Comment
  UC1031402  Delphinium hansenii subsp. hansenii H. Lewis and C. Epling 1941-5-26 Yuba Smartville Comment
  CAS-BOT-BC10237  Delphinium hesperium R. K. Wellman 1981-5-17 025 Yuba Junction of county roads E-20 and E-21 152 Comment
  CHSC41270  Delphinium patens J. D. Jokerst 1984-4-23 1982 Yuba Ca 1/2 mile north of the N Fork Yuba River at Wambo Bar. Comment
  CAS-BOT-BC116482  Delphinium patens subsp. patens Ella D. Cantelow 1968-5-6 s.n. Yuba Near Gales Orchard ca. 6 miles east of Camptonville 1249 Comment
  SEINET7042738  Delphinium variegatum A. G. Vestal 1963-5-30 s.n. Yuba Roadside between Daken Flat and the road north northeast to Brownsville. 5.3 miles north of the Dry Creek bridge. Rackerby quadrangle UTM Zone 10, 647847mE, 4368678mN. Comment
  SEINET4566882  Deschampsia danthonioides A. Tiehm 1975-1 645 Yuba U.C. Sierra Foothill Field Station 274 Comment
  UCD62773  Deschampsia danthonioides Beecher Crampton 1963-5-11 7322 Yuba 2.5 miles southwest of Brown's Valley. Comment
  UCR168689  Deschampsia danthonioides David Charlton 2005-5-16 8015 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-BC201732  Deschampsia elongata Lowell Ahart 1979-6-25 s.n. Yuba 1 mile south of Challenge 700 Comment
  UCD63571  Deschampsia elongata Beecher Crampton 1966-6-14 7747 Yuba 1 mile east of Brownsville. 731 Comment
  CAS-BOT-BC43427  Descurainia sophia Lowell Ahart 2007-5-12 13782 Yuba Along road to the power towers, about 20 yards south of the first power tower, about 50 yards north of Fruitland Road. 35 Comment
  JEPS113413  Descurainia sophia Lowell Ahart 2007-5-12 13782 Yuba Dry red bare soil, east of the dirt road, along road to the power towers, about 20 yards south of the first power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  CAS-BOT-BC402378  Dicentra formosa subsp. formosa Herbert L. Mason 1927-5-11 3734 Yuba Near Bullards Bar 609 Comment
  CAS-BOT-BC402379  Dicentra formosa subsp. formosa Rimo Bacigalupi 1927-7-2 1592 Yuba Halfway to Downieville about 8 miles northeast of Camptonville Comment
  POM161772  Dicentra formosa subsp. formosa R. C. Bacigalupi 1927-7-2 1592 Yuba Highway to Downieville about 8 mi NE of Camptonville. Comment
  CAS-BOT-BC402557  Dicentra pauciflora M. Boone 1981-5-15 043 Yuba Found highway 49 2 miles N. of Downyville [Downieville] 1219 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
  UC1552706  Dichanthelium acuminatum subsp. fasciculatum Frederica Bowcutt 1985-6-8 586 b 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
  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
  CHSC23169  Dichelostemma capitatum subsp. capitatum Robert A. Schlising; G. Keator 1963-4-8 2496 Yuba Along Hwy 20, near Brownsville, 29.4 mi W of Nevada City. Comment
  UCR257127  Dichelostemma capitatum subsp. capitatum George K. Helmkamp 2014-4-17 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 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
  JEPS118044  Dichelostemma multiflorum Lowell Ahart 2011-6-7 17420 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  SBBG34511  Dichelostemma multiflorum H. and M. Dearing 1939-5-6 3281 Yuba Browns Valley Comment
  SEINET7072709  Dichelostemma multiflorum A. G. Vestal 1963-5-7 s.n. Yuba About 4.7 miles northeast of Honcut on Dustone Drive and about 5.2 miles southwest of Bangor. Coordinate Datum WGS84/NAD83. (UTM Zone 10, 632602E, 4361139mN. Coordinate datum: NAD 27) Comment
  UC1133992  Dichelostemma multiflorum H. S. Yates 1933-5-23 3626 Yuba 2 mi w Cabbage Patch; Smartsville Quad. 91 Comment
  UCD139261  Dichelostemma multiflorum Barbara Yungert 1974-4-29 91 Yuba North of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UCR231312  Dichelostemma multiflorum George K. Helmkamp, E. A. Helmkamp 2011-5-6 17189 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.9 mile west of the junction at Camp Far West Reservoir 65 Comment
  UCR231333  Dichelostemma multiflorum George K. Helmkamp, E. A. Helmkamp 2011-5-6 17184 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
  CAS-BOT-BC500915  Dichelostemma multiflorum Lewis S. Rose 1940-5-28 40405 Yuba Dobbins 518 Comment
  UCD139262  Dichelostemma multiflorum Barbara Yungert 1974-5-6 121 Yuba along Scott Lane, western SC -19 project area, Sierra Foothill Field Station. Comment
  UCD139277  Dichelostemma volubile Barbara Yungert 1974-4-22 77 Yuba Along four wheel drive jeep road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UCD37872  Dichelostemma volubile Beecher Crampton 1962-4-24 6291 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CAS-BOT-BC501114  Dichelostemma volubile Alice Eastwood 1921-5-22 10521 Yuba Los Vergils Comment
  RSA21179  Dichelostemma volubile Carl B. Wolf 1937-6-11 8778 Yuba Sierra Nevada foothills, 1.6 miles NW of Stanfield Hill, along a fork of So Honcut Creek. 305 Comment
  UCD139278  Dichelostemma volubile Barbara Yungert 1974-4-18 66 Yuba along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. 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
  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
  SEINET13693759  Diplacus aurantiacus D. Kaplan 1981-5-2 s.n. Yuba Hwy 49, Dobbins. 914 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
  SEINET13765312 Image available Diplacus grandiflorus Mary Anne Brayton 1964-1 15 Yuba Harry L. Englebright Dam - south shore near dam, State Highway 20, 20 miles northwest of Marysville 183 Comment
  SEINET13765295 Image available Diplacus grandiflorus L. Constance 1938-1 2291 Yuba Sierra Nevada foothills; Middle Fork of the Yuba River, 4 miles W of North San Juan 427 Comment
  CAS-BOT-BC151758  Diplacus kelloggii Alice Eastwood 1921-5-22 10550 Yuba Los Vergils Comment
  CAS-BOT-BC151759  Diplacus kelloggii Gordon H. True 1963-5-2 1209 Yuba Oregon Creek at jct. with middle Yuba River, at Freeman's Crossing - Sierra Nevada 457 Comment
  CAS-BOT-BC151761  Diplacus kelloggii R. C. Barneby; John Thomas Howell 1954-5-12 11475 Yuba 4 miles s. of Camptonville 579 Comment
  CAS-BOT-BC154018  Diplacus torreyi Lowell Ahart 1980-6-19 2404 Yuba 3 1/2 miles south-east of Challenge 800 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
  CHSC10690  Disporum hookeri Lowell Ahart 1964-5-3 Yuba Near Bullard's Bar. 914 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
  SJSU8489  Dodecatheon hendersonii J. B. Willis Jr. 1969-4-19 32 Yuba edge of Marysville Rd near Oregon House Post Office, 7.5 mi W of Dobbins Comment
  UCD118970  Dodecatheon hendersonii Barbara Yungert 1974-4-16 49 Yuba Near wire gate, Koch Livestock Free Area, Sierra Foothill Field Station. Comment
  CHSC43509  Dopatrium junceum Lowell Ahart 1977-8-31 1559 Yuba On Shintaffer Farms, about 2 miles north-east of Marysville. 27 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
  SEINET7072720  Downingia bacigalupii 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
  JEPS5031  Downingia montana Lincoln Constance 1951-5-20 Yuba just s Brownsville 670 Comment
  UC1283736  Downingia pusilla Beecher Crampton 1965-5-11 7321 Yuba 2.5 mi sw Browns Valley 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
  CAS-BOT-BC515973  Draperia systyla Gordon H. True 1968-5-6 4227 Yuba Sierra Nevada: Near Gales Orchard, ca. 6 mi E of Camptonville 1249 Comment
  JEPS104416  Draperia systyla Lowell Ahart 2003-10-11 10625 Yuba On the east margins of a gravel road to the Rose Ranch, ca 100 yd west of the paved road to Scales, ca 1/2 mi south of the Rose Ranch, ca 5 miles (air) northeast of Strawberry Valley, ca 7 mi (air) southwest of La Porte. 1219 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
  SEINET8472322  Dudleya cymosa C. Aarstad 1979-4-28 s.n. Yuba Browns Valley, junction of Rte. 20 and N Fork of the Yuba. 183 Comment
  UCD101899  Dudleya cymosa Barbara Yungert 1974-5-14 152 Yuba along dry rocky bank of Dry Creek, end of Road 4, Sierra Foothill Field Station. Comment
  CHSC97692  Dysphania ambrosioides Lowell Ahart 2007-11-1 14548 Yuba On the north side of Loma Rica Road, east of the Fire Station, about 3/4 mile east of Loma Rica. 146 Comment
  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
  CHSC83043  Dysphania pumilio Lowell Ahart 2002-10-9 9954 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
  CHSC96845  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
  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
  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
  RSA749526  Echinochloa crus-galli George K. Helmkamp, E. A. Helmkamp 2008-10-6 14208 Yuba Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  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
  UCR201770  Echinochloa crus-galli George K. Helmkamp, E. A. Helmkamp 2008-10-6 14208 Yuba Sacramento Valley, Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  CAS-BOT-BC208570  Echinochloa oryzoides Wm. F. Herrin 1920-10-1 s.n. Yuba Rice fields. 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
  JEPS124313  Elatine Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20648 Yuba Below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CHSC46020  Elatine chilensis Lowell Ahart 1978-4-14 1637 Yuba Rice field west of Kimball Lane, on the property of Shintaffer Farms, Inc., about 2 miles north-east of Marysville. 30 Comment
  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
  CHSC116337  Eleocharis acicularis var. acicularis Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20646 Yuba North of the 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
  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
  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
  CHSC78293  Eleocharis bolanderi Lowell Ahart 2000-6-19 8494 Yuba Meadow, about 80 yards north of New York Flat Road, about 1 1/4 miles (air) northeast of Brownsville, about 2 1/4 miles (air) west of Challenge. 731 Comment
  JEPS104249  Eleocharis bolanderi Lowell Ahart 2003-7-6 10362 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
  JEPS95538  Eleocharis bolanderi Lowell Ahart 1994-6-27 7375 Yuba 4 mi NE of Strawberry Valley (center of Schwartz Meadow, E side of La Porte Road) 1219 Comment
  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
  JEPS98607  Eleocharis bolanderi Lowell Ahart 2000-6-19 8494 Yuba Meadow, ca 80 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
  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
  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
  CDA38958  Eleocharis montevidensis L. Ahart 2003-7-6 10362 Yuba East of the power line, about 50 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. Comment
  UCD33112  Eleocharis montevidensis Beecher Crampton 1966-6-14 7757 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 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
  JEPS124259  Eleocharis obtusa Lowell Ahart 2015-11-19 20689 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. 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
  CHSC73706  Eleocharis pachycarpa B. Castro; L. Gehrung 1995-9-12 600 A Yuba Fish Mdw. Ca 5 air mi NE of Strawberry Valley, and ca 1.5 mi E of Slate Ck. In meadow on unnamed stream flowing S into Canyon Ck, ca 500 ft W of USFS Rd 20N35 via unnamed dirt rd. Towards upper end of meadow. 1249 Comment
  CHSC78195  Eleocharis pachycarpa Lowell Ahart 2000-5-25 8400 Yuba On the sidesof a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  CHSC83068  Eleocharis pachycarpa Lowell Ahart 2002-10-9 9949 Yuba Area south of a spring, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS98437  Eleocharis pachycarpa Lowell Ahart 2000-5-25 8400 Yuba 6 air mi S of Smartville (sides of a deep wash, a N branch of Dry Creek, 2 mi N of intersection of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  JEPS98594  Eleocharis pachycarpa Lowell Ahart 2000-6-19 8490 Yuba Along a S branch of Dry Creek, on the S side of Marysville Road, ca 1/4 mile W of the intersection of Marysville Road and Frenchtown Road, W of Oregon House, ca 2 miles E of Collins Lake. 457 Comment
  HSC97768  Eleocharis pachycarpa L. Ahart 2000-6-19 8490 Yuba S branch of Dry Creek, S side of Marysville Rd., 1/4 mi. W of intersection of Marysville Rd. and Frenchtown Rd., W of Oregon House, 2 mi. E of Collins Lake 457 Comment
  SEINET3478048  Eleocharis pachycarpa Unknown 2000-6-19 8490 Yuba Collins Lake, Collins Lake, about 2 miles east, on the south side of Marysville Road, about 0.25 miles west of the intersection of Maryville Road and Frenchtown Road, west of Oregon House, along a south branch of Dry Creek 450 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
  CHSC78201  Eleocharis quinqueflora Lowell Ahart 2000-5-25 8398 Yuba On the sides of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  CHSC78301  Eleocharis quinqueflora Lowell Ahart 2000-6-19 8493 Yuba Wet meadow, 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
  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
  JEPS98608  Eleocharis quinqueflora Lowell Ahart 2000-6-19 8493 Yuba Wet 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
  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
  JEPS98723  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
  JEPS98296  Eleocharis quinqueflora Lowell Ahart 2000-7-13 8578 Yuba small meadow on S side of Ridge Road, 1/4 mi W of Our House, 2 air mi E of Celestial Valley, 2 1/2 air mi SE of Camptonville 975 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
  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
  SEINET7587017 Image available Eleocharis quinqueflora Lowell Ahart 2000-5-25 8398 Yuba 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
  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
  UCD62803  Elymus X hansenii Beecher Crampton 1957-6-5 4151 Yuba 1/2 mile W of Oregon House Post Office. Comment
  CHSC97462  Elymus caput-medusae Lowell Ahart 2007-5-14 13859 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
  JEPS118729  Elymus caput-medusae L. P. Janeway and Melanie Williams, Tim Hanson 2011-6-9 10370 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. French Corral 7.5' quad. Comment
  UCR169018  Elymus caput-medusae David Charlton 2005-5-16 8014 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  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
  CDA14561  Elymus glaucus G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3038 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  UCD61859  Elymus glaucus Beecher Crampton 1965-6-17 7375 Yuba Ca. 3/4 mile north of Stanfield Hill, Willow Glen Creek. 396 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
  CHSC44533  Elymus stebbinsii subsp. septentrionalis Lowell Ahart 1979-6-25 1946 Yuba North of the dirt road, about 2 miles east of Challenge. 640 Comment
  CHSC69426  Epilobium brachycarpum Lowell Ahart 1997-8-30 7876 Yuba On the west side of the dirt road, in a clear cut, Peterson Ridge Road, about 3 miles (air) east of Challenge. 762 Comment
  JEPS43833  Epilobium brachycarpum L. S. Smith 1927-4-18 2017 Yuba Comptonville and w Tahoe (along road) 609 Comment
  SD234459  Epilobium brachycarpum G. K. Helmkamp, E. A. Helmkamp 2006-10-10 11529 Yuba Northern Sierra Nevada Foothills: along Hwy CA-49 just N of the Nevada County line at the Middle Yuba River bridge (Camptonville 7.5' Q) 451 Comment
  JEPS113717  Epilobium campestre Lowell Ahart 2007-6-30 14226 Yuba Bottom of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 29 Comment
  CHSC84143  Epilobium ciliatum subsp. ciliatum Lowell Ahart 2003-7-2 10349 Yuba Seep on the east side of Fountain Hill Road, about 3 miles south of Oregon Hill Road, about 1/2 mile (air) north of Fountain House Hill, about 3 miles (air) northeast of Dobbins. 841 Comment
  JEPS104040  Epilobium ciliatum subsp. ciliatum Lowell Ahart 2003-7-2 10349 Yuba Seep on the e side of Fountain Hill Rd, ca 3 mi south of Oregon Hill Rd, ca 1/2 mi (air) n of Fountain House Hill, ca 3 mi (air) ne of Dobbins. 841 Comment
  JEPS43829  Epilobium ciliatum subsp. ciliatum W. L. Jepson 1934-7-29 16754 Yuba Marysville Comment
  UCD80486  Epilobium ciliatum subsp. ciliatum CNPS SN Foothill Team 2005-7-5 SNNR 0473 b Yuba CDFG Daugherty Hill Wildlife Area. 280 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
  CHSC84172  Epilobium densiflorum Lowell Ahart 2003-7-17 10413 Yuba On the sides of a stream, on the west side of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 129 Comment
  HSC99266  Epilobium densiflorum L. Ahart 2003-7-17 10413 Yuba W side of Smartville Rd., about 2 mi. N of the intersection of Waldo Rd. and Smartville Rd., about 6 mi. S of Smartville 130 Comment
  CHSC32095  Epilobium minutum L. Ahart 1973-5-6 210 Yuba Near Challenge. 762 Comment
  RSA726849  Epilobium pygmaeum L. Ahart 2007-6-30 14226 Yuba About 13 miles (air) northeast of Marysville. 30 Comment
  SEINET7072984 Image available Epilobium torreyi A. G. Vestal 1963-5-29 s.n. Yuba About 0.4 mile west of Erle Road on Hammonton-Smartville Road. UTM Zone 10, 638165mE, 4337165mN. Coordinate datum: NAD27). Comment
  CHSC43309  Equisetum arvense Lowell Ahart 1977-4-17 1312 Yuba About 1 mile south of Challenge, about 1 1/2 miles west of Pike County Peak. 548 Comment
  CAS-BOT-BC57147  Equisetum hyemale subsp. affine Lowell Ahart 1977-4-17 s.n. Yuba About 3 miles south of Challenge 700 Comment
  HSC868  Equisetum hyemale subsp. affine T. F. Newman 1964-4-15 6440 Yuba Feather River near Marysville Comment
  CAS-BOT-BC57515  Equisetum telmateia John Thomas Howell 1951-8-21 28287 Yuba Near Camptonville 762 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
  HSC9780  Eragrostis mexicana subsp. virescens T. F. Newman 1965-8-22 6559 Yuba Carnes Ranch, 10 mi. N of Marysville Comment
  JEPS94974  Eragrostis mexicana subsp. virescens Lowell Ahart 1997-8-13 7866 Yuba about 2 1/4 air mi e of Browns Valley (on s side of Scott Forbes Road, 1/4 mi e of intersection of Scott Forbes Road and Peoria Road, just e of Gray Drive); s side of Scott Forbes Road 91 Comment
  CHSC69463  Eragrostis pectinacea var. pectinacea Lowell Ahart 1997-8-13 7867 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
  CAS-BOT-BC131511  Ericameria arborescens Carl B. Wolf; E. R. Johnson 1934-10-4 6153 Yuba Texas Hill, about 2 miles from Dobbins 457 Comment
  CHSC112953  Ericameria arborescens L. P. Janeway 2014-11-6 11582 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 2.1 air km south-southwest of Oregon Peak, 0.2 km north of Marysville Road. 762 Comment
  CHSC45111  Ericameria arborescens Lowell Ahart 1975-9-28 988 Yuba Near the Bullards Bar Dam. 609 Comment
  OBI5769  Ericameria arborescens Carl B. Wolf 1934-10-4 6153 Yuba Texas Hill, about 2 mi from Dobbins 457 Comment
  UC527410  Ericameria arborescens Carl B. Wolf and E. R. Johnson 1934-10-4 6153 Yuba about 2 mi from Dobbins; Texas Hill 457 Comment
  CHSC83006  Ericameria nauseosa var. speciosa Lowell Ahart 2002-9-8 9936 Yuba Along a wash, on the north side of the dirt road, about 1 mile southeast of Woodleaf, about 3 miles (air) northeast of Challenge. 1001 Comment
  JEPS103302  Ericameria nauseosa var. speciosa Lowell Ahart 2002-9-8 9936 Yuba Along a wash, on the N side of the dirt road, ca 1 mile SE of Woodleaf, ca 3 miles (air) NE of Challenge. 1001 Comment
  UCD23251  Erigeron W. R. Powell 1968-5-15 1495 Yuba 2 miles NE of Dobbins on Fountain House Road. 792 Comment
  CHSC116119  Erigeron canadensis Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20638 Yuba On the bottom of the 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
  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
  CAS-BOT-BC295160  Erigeron inornatus Lowell Ahart 1983-8-10 4272 Yuba Along the Peterson Ridge Road, about 4 miles south-east of Challenge 1000 Comment
  CHSC84170  Erigeron inornatus var. inornatus Lowell Ahart 2003-7-6 10358 Yuba Near a meadow, east of the power line, about 60 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  SBBG8139  Erigeron philadelphicus H. and M. Dearing 1939-5-6 3285 Yuba near Challenge Comment
  RSA21288  Erigeron philadelphicus C. B. Wolf 1937-5-13 8633 Yuba Sierra Nevada Foothills, 2 miles above Browns Valley on road to Stanfield Hill. 122 Comment
  JEPS100495  Erigeron reductus var. reductus Dean W. Taylor 2001-6-21 17812 Yuba canyon of the North Fork Yuba River, near the confluence of Canyon Creek at Kelly Bar Comment
  JEPS125960  Erigeron reductus var. reductus D. W. Taylor 2001-5-9 17647 Yuba Plumas National Forest; canyon of the North Fork of the Yuba River near Kelley Bar Comment
  CHSC96478  Eriodictyon californicum Lowell Ahart 2007-4-17 13688 Yuba On the north side of the poor dirt fireguard, about 50 yards northwest of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  UC410442  Eriodictyon californicum Alice Eastwood 1930-4-12 Yuba Comment
  UCD119302  Eriodictyon californicum Barbara Yungert 1974-4-22 78 Yuba Along four wheel drive jeep road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  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
  CHSC69142  Eriogonum nudum var. oblongifolium Lowell Ahart 1997-8-7 7834 Yuba On the north side of the dirt road, northwest of the bridge across Indian Creek, about 3 miles (air) east of Challenge. 762 Comment
  JEPS94519  Eriogonum nudum var. oblongifolium Lowell Ahart 1997-8-7 7834 Yuba about 3 air mi e of Challenge (on n side of the dirt road, nw of the bridge across Indian Creek) 762 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
  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
  JEPS113303  Eriogonum umbellatum var. ahartii L. P. Janeway, David Toren 2006-7-18 8815 Yuba Northern High Sierra Nevada. Along the 107 road, overlooking Golden Gate Ravine from the south; 2.4 km north-northeast of Challenge & 2.4 km southwest of Woodleaf. Comment
  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
  UCR263571  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-8-30 7875 Yuba Sierra Nevada Mtns., in the gutter on the north side of Forbestown Road, just west of Costa Creek, about 2.5 miles (air) southeast of Forbestown 854 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
  SEINET9085895  Eriogonum umbellatum var. ahartii L. Ahart 1997-8-30 7875 Yuba In gutter on N side of Forbestown Road, just W of Costa Creek, ca 2.5 air miles SE of Forbestown. 853 Comment
  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
  SD147528  Eriogonum umbellatum var. speciosum Lowell Ahart 1980-8-12 2526 Yuba Sierra Nevada: Ca. 2 miles south-east of Woodleaf. 800 Comment
  SEINET4208678  Eriophyllum lanatum var. achilleoides George K. Helmkamp, E. A. Helmkamp 2007-5-26 12128 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville. Camptonville 7.5' Q.; 0 802 Comment
  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
  CHSC115476  Eriophyllum lanatum var. croceum L. P. Janeway; Emily Meigs Doe 2015-5-6 11671 Yuba Northern High Sierra Nevada. Plumas National Forest; Forbestown, 510 m south-southwest of junction of Forbestown Road and Challenge-Cutoff Road. 832 Comment
  CAS-BOT-BC308241  Eriophyllum lanatum var. grandiflorum Alice Eastwood 1921-5-22 10539 Yuba Los Vergils 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
  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
  UCD37886  Erodium botrys Beecher Crampton 1962-4-24 6312 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. 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
  RSA590206  Erodium cicutarium Michael A. Vincent, Robert M. Rhode 1996-3-29 7248 Yuba Along Ramirez Rd. at RR track and drainage ditch, 3 mi. E of jct. with St. Hwy. 70, ca. 6 mi N of Marysville. Comment
  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
  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
  CAS-BOT-BC54686  Erysimum capitatum Daniel Campbell 1974-6-10 s.n. Yuba Sierra Nevada. Highway 49, 1 mile south of Comptonville. 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
  CHSC63275  Erythranthe bicolor Lowell Ahart 1994-6-5 7293 Yuba On the north side of Costa Creek, on the north side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  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
  SEINET8264801  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-BC153600  Erythranthe moniliformis Mrs. Martin Goerges 1953-6-24 s.n. Yuba Lake Vera, North Fork, Yuba River Comment
  CAS-BOT-BC153601  Erythranthe moniliformis Lowell Ahart 1980-8-12 2547 Yuba Along Slate Creek 1250 Comment
  CHSC23421  Erythronium multiscapideum D. Huffmaster 1974-4-14 Yuba Collected ca. 32 mi ne of Marysville on Indiana Ranch Road, ca. 0.2 mi n of Dobbins Road. 457 Comment
  JEPS106273  Erythronium multiscapideum Lowell Ahart 2004-4-27 10769 Yuba About 20 yards north of a drainage, about 50 yards east of the road, about 1/2 mile (air) southeast of Woodleaf 931 Comment
  JEPS18180  Erythronium multiscapideum Rimo Bacigalupi with G. T. Robbins and F. Chisaki 1956-4-19 5616 Yuba 0.3 mi n Oregon House Post Office 480 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
  SJSU8125  Erythronium multiscapideum J. B. Willis Jr. 1969-4-19 Yuba Marysville Rd 0.5 mi W of Oregon House P.O., 7.5 mi W of Dobbins Comment
  UCD139644  Erythronium multiscapideum Kathleen Keliher 1975-4-12 59 Yuba near boat launch, Englebright Reservoir, C 1-11 project area, Sierra Foothill Field Station. 152 Comment
  CHSC90463  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
  CAS-BOT-BC419483  Eschscholzia lobbii Carl B. Wolf 1937-5-12 8630 Yuba Sacramento Valley, 4 mi. NE. of Wheatland on road to Grass Valley 60 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
  SD241118  Eschscholzia lobbii George K. Helmkamp, E. A. Helmkamp 2011-4-10 17163 Yuba Sacramento Valley: along Camp Beale Highway/Spenceville Road, c. 1.75 miles northeast of Wheatland (Wheatland 7.5'Q) 43 Comment
  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
  OBI69837  Eucalyptus globulus Jenn Yost and Matt Ritter, Matt Ritter 8-Apr 38 Yuba Plumas Arboga and I 70, in back yard of a house, near tracks Comment
  CHSC63247  Euphorbia crenulata Lowell Ahart 1994-6-5 7296 Yuba On the north side of Costa Creek, on the south side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  JEPS95342  Euphorbia crenulata Lowell Ahart 1994-6-5 7296 Yuba 3 air miles E of Forbestown (N side of Costa Creek, S side of Forbestown Road) 853 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
  UCR263624  Euphorbia serpillifolia subsp. serpillifolia Lowell Ahart 2002-10-9 9966 Yuba Sly Creek Reservoir, below the high water line, ca 1/8 mile southwest of the Day Camp 1073 Comment
  CHSC68477  Euphorbia spathulata Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7719 Yuba On the south side of a poor dirt road, about 1/2 mile east of Scott Forbes Road (Long Bar Road), south of Dry Creek, about 17 miles northeast of Marysville. 137 Comment
  JEPS95033  Eurybia radulina Lowell Ahart 1997-8-7 7829 Yuba about 3 air mi e of Challenge (on n side of the dirt road, in a clear cut, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  CHSC44867  Euthamia occidentalis Lowell Ahart 1978-9-24 1807 Yuba Along a drain ditch, on Shintaffer Farms, about 2 air miles north-east of Marysville. 30 Comment
  CAS-BOT-BC459238  Euthamia occidentalis Lowell Ahart 1978-9-24 s.n. Yuba 2 miles NE of Marysville on Sam Shintaffer Farm 35 Comment
  CAS-BOT-BC413883  Fallopia convolvulus Lowell Ahart 2007-5-14 13842 Yuba East and west of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  CHSC107155  Festuca myuros L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10371 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants common throughout the meadow. 750 Comment
  UCR258227  Festuca perennis George K. Helmkamp, Amy Barnes 2013-3-28 20255 A Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  UC2046361  Ficus carica Barbara Ertter with Steve Matson 1996-10-19 15349 Yuba Waldo Road Bridge across Dry Creek, ca 15 airmi E of Marysville. Comment
  RSA726543  Filago gallica L. Ahart 2007-5-12 13768 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  CHSC10692  Fragaria vesca Lowell Ahart 1970-4-5 Yuba Near Challenge. 914 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
  SBBG2920  Fragaria vesca H. and M. Dearing 1939-5-6 3288 Yuba near Brownsville Comment
  CAS-BOT-BC454547  Fragaria vesca subsp. californica Lowell Ahart 1968-4-20 s.n. Yuba Five miles southeast of Challenge 457 Comment
  CAS-BOT-BC53654  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba along the left bank of the Yuba River, near bridge on road from Brown's Valley to Smartsville Comment
  CAS-BOT-BC53655  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-5 1444 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-BC53656  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-BC53660  Frangula californica subsp. tomentella Carl B. Wolf 1930-10-12 1738 Yuba Sierra Nevada Foothills, along Yuba River, near bridge on the Brown's Valley - Smartsville Road 152 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-BC53664  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1447 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-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-BC53671  Frangula californica subsp. tomentella Alice Eastwood 1921-5-22 10530 Yuba Los Vergeles 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
  LA207668  Frangula californica subsp. tomentella C. B. Wolf; 1927-11-5 1445 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  SBBG27475  Frangula californica subsp. tomentella C. B. Wolf, E. R. Johnson 1934-10-4 6155 Yuba Texas Hill, 2 mi W of Dobbins 457 Comment
  CHSC112863  Frangula rubra subsp. obtusissima L. P. Janeway 2014-4-24 11234 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  CHSC113643  Frangula rubra subsp. obtusissima L. P. Janeway 2014-5-12 11252 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  SBBG50631  Frangula rubra subsp. obtusissima D. Youngberg 1968-5-5 1017 Yuba ca. 1 mi S of Camptonville on St Hwy 49 Comment
  UCD113145  Frangula rubra subsp. obtusissima W. R. Powell 1971-5-24 1547 Yuba at C.D.F. fire station, Brownsville. 649 Comment
  CAS-BOT-BC55739  Frangula rubra subsp. rubra Lowell Ahart 1976-5-6 s.n. Yuba Near the Brownsville Dump, Brownsville 457 Comment
  CHSC107277  Frangula rubra subsp. rubra L. P. Janeway 2011-8-10 10639 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
  CAS-BOT-BC223487  Fraxinus latifolia Alice Eastwood 1913-7-3 3408 Yuba Wheatland Comment
  SBBG83673  Fraxinus latifolia R. Ernenwein 1975-5-10 19 Yuba Dry Crk 300-400 yards S of 4th locked gate on Rd 4, 0.5 mi N of Univ of California Sierra Foothill Range Field Station boundary Comment
  CAS-BOT-BC205976  Fremontodendron californicum Wayne Roderick 1981-5-24 s.n. Yuba Near Dobbins Comment
  CHSC47512  Fremontodendron californicum Lowell Ahart 1975-6-25 810 Yuba East of Ponderosa Way, near the Brownsville dump, about 2 miles south-west of Brownsville. 518 Comment
  UCD80804  Fremontodendron californicum CNPS SN Foothill Team 2005-5-31 SNFN 0329 c Yuba BLM, Ponderosa Landfill. 699 Comment
  CHSC112261  Fritillaria eastwoodiae Lowell Ahart 2013-4-23 18566 Yuba Mined area along Costa Creek, about 100 yards east of where the paved road crosses Costa Creek, about 2 1/2 miles (air) southeast of the Forbestown store. 851 Comment
  CHSC74731  Fritillaria eastwoodiae B. Castro; L. P. Janeway 1991-4-17 440 A Yuba Ca 10 air mi SE of Challenge, ca 1.4 mi E of Dobbins; the southern most parcel of the Plumas NF. On W end of saddle to the top of the S-facing slope between two knolls off of USFS Rd 18N03, mostly on the S side of the road. 762 Comment
  JEPS120942  Fritillaria eastwoodiae Lowell Ahart 2013-4-23 18566 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
  CHSC47588  Fritillaria micrantha Lowell Ahart 1976-4-15 1074 Yuba On the east side of Ponderosa Way, at the Brownsville Dump, about 2 miles south-west of Brownsville. 457 Comment
  CAS-BOT-BC506160  Fritillaria micrantha Volney Rattan 1880-1-1 s.n. Yuba Brownsville Comment
  HSC72942  Fritillaria micrantha M. S. Taylor 1981-4-15 3539 Yuba Brownsville along La Potre-Quincy Rd. near its junction with Rackerby Rd. Comment
  HSC86846  Fritillaria micrantha Jim Jokerst, L. Ahart 1984-3-28 1944 Yuba Near Brownsville S of the Brownsville Dump, E of and adjacent to Ponderosa Way 0.65 mi. N of its junction with La Porte Rd. Comment
  SJSU8742  Fritillaria micrantha N. A. Hopkins 1980-4-12 967 Yuba Abernathy (Abranathy) Rd 100 yds from its intersection with Forbestown-Woodleaf Rd c. 2-3 mi E of Forbestown 838 Comment
  UCD139694  Fritillaria micrantha Kathleen Keliher 1975-5-6 94 Yuba 200 feet from duck pond, between houses, near Frenchtown Road and New York Road. 304 Comment
  CAS-BOT-BC130402  Fritillaria pinetorum Lowell Ahart 1976-4-15 s.n. Yuba Near the Brownsville Dump, Brownsville Comment
  JEPS18153  Fritillaria recurva Rimo Bacigalupi with G. T. Robbins and F. Chisaki 1956-4-19 5623 Yuba 5.5 mi sw of Bullard Bar Dam (3.1 mi e of Dobbins, watershed of North Fork of Yuba River, between Dobbins and Bullard Bar Dam) 838 Comment
  SBBG1013  Fritillaria recurva H. and M. Dearing 1939-5-6 3290 Yuba near Brownsville 609 Comment
  SEINET7073614  Fritillaria recurva 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
  UCD121740  Galium aparine Barbara Yungert 1974-4-12 21 Yuba North of Yuba River, Sierra Foothill Field Station. 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
  CHSC78164  Galium divaricatum Lowell Ahart 2000-6-11 8468 Yuba On the sides of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  CHSC97200  Galium mollugo Lowell Ahart 2007-8-7 14426 Yuba Small open flat, about 200 yards south of Hampshire Creek Meadow, about 30 yards est of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS98438  Galium murale Lowell Ahart 2000-5-25 8395 Yuba 6 air mi S of Smartville (bank of a large wash, a N branch of Dry Creek, 2 mi N of intersection of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  CHSC47478  Galium parisiense Lowell Ahart 1981-6-13 2845 Yuba Along the new gravel road, on the north-east side of McGinn Hill, east of Loma Rica. 304 Comment
  UCD33813  Galium parisiense Beecher Crampton 1973-6-22 8954 Yuba Yuba County, ca. 3 miles east of Brown's Valley on Peoria road. Comment
  JEPS115066  Galium sparsiflorum subsp. glabrius Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14499 Yuba Open meadow, about 20 yards east of the dirt road, Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills 1015 Comment
  CHSC97752  Galium trifidum Lowell Ahart 2007-11-1 14529 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  UCD82293  Galium trifidum subsp. subbiflorum Robin McMaster 1973-6-24 504 Yuba Oregon Creek Campground. Comment
  CHSC69413  Gamochaeta argyrinea Lowell Ahart 1997-8-30 7880 Yuba On the west side of the dirt road, near a road culvert, about one mile (air) south of Woodleaf. 944 Comment
  JEPS94447  Gamochaeta ustulata Lowell Ahart 1997-8-30 7880 Yuba about 1 air mi s of Woodleaf (on the w side of the dirt road, near a road culvert) 944 Comment
  CHSC107311  Gastridium phleoides L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10380 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 re-opened in fire-fighting several years ago but not driveable. 750 Comment
  RSA697054  Gastridium phleoides L. Ahart 2003-6-29 10319 Yuba On the east side of Ponderosa Way, about 1 1/2 miles north of La Porte Road, about 1 mile (air) west of Brownsville. 702 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
  JEPS104198  Gastridium ventricosum Lowell Ahart 2003-6-29 10319 Yuba Along a wash, on the e side of Ponderosa Way, ca 1 1/2 mi n of La Porte Rd, ca 1 mi (air) w of Brownsville. 701 Comment
  SEINET10553569  Gastridium ventricosum Lowell Ahart 2003-6-29 Ahart 10319 Yuba T19N R6E S27 SW1/4. Small size plants, on dry to damp red soil, along a small wet wash, on the east side of Ponderosa Way, about 1.5 miles north of La Porte Road, about 1 mile (air) west of Brownsville. Common. Foothill Woodland. 702 Comment
  UCD105750  Genista monspessulana Barbara Yungert 1974-6-5 193 Yuba Picnic area, north of Yuba River, Sierra National Foothill Field Station. 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
  JEPS118297  Geranium dissectum Lowell Ahart 2011-6-7 17403 Yuba West of a willow shurb, 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
  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
  UCD37857  Geranium molle Beecher Crampton 1962-4-24 6263 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD72427  Githopsis specularioides Barbara Yungert 1974-5-3 107 Yuba Sierra Foothill Field Station, west of road, near Cattle guard and U.C. sign, west of station. 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
  CDA2105  Glyceria declinata J. F. Williams Mar 1984 s.n. Yuba 0 Comment
  JEPS113771  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
  CAS-BOT-BC280560  Glyceria elata Lowell Ahart 1979-6-25 s.n. Yuba 1 mi s of Challenge 700 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
  CHSC116303  Gnaphalium palustre Lowell Ahart 2015-11-18 20664 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
  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
  CHSC97644  Gnaphalium palustre Lowell Ahart 2007-5-12 13769 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
  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
  JEPS113625  Gnaphalium palustre Lowell Ahart 2007-5-12 13769 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
  JEPS121300  Gnaphalium palustre Lowell Ahart 2013-11-30 19316 Yuba On the SE side of Dry Creek, about 30 yards SE of Willow Glen Creek, below the high water line of Collins Lake, about 30 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  JEPS124270  Gnaphalium palustre Lowell Ahart 2015-11-19 20668 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CAS-BOT-BC303349  Gnaphalium palustre Rimo Bacigalupi 1927-7-2 1579 Yuba Road to Downieville 2 miles W of Camptonville Comment
  CHSC97500  Gratiola ebracteata Lowell Ahart 2007-5-14 13876 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
  UCD147085  Gratiola ebracteata Chuck Hughes; Juliette Robinson 2013-5-2 370 Yuba Northwest margin of Camp Far West Reservoir. 93 Comment
  SEINET7072721  Grindelia camporum A. G. Vestal 1963-5-7 s.n. Yuba About 3.5 miles north of Wheatland on Jasper Lane. UTM Zone 10, 636590E, 4323573mN. Coordinate datum: NAD 27. Comment
  CAS-BOT-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
  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
  JEPS113630  Hainardia cylindrica Lowell Ahart 2007-5-12 13825 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  RSA726545  Hainardia cylindrica L. Ahart 2007-5-12 13825 Yuba About 13 miles (air) northeast of Marysville. 28 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
  UCR118923  Hedypnois cretica Beecher Crampton 1967-5-17 7943 Yuba Central Sierra Nevada foothills, 5 Miles east of Brown's Valley, Sierra foothill range field station. 366 Comment
  CAS-BOT-BC306334  Hedypnois cretica Gordon H. True 1963-4-17 1164 Yuba About 14 miles east of Marysville, on Marysville-Grass Valley Hwy. 60 Comment
  CAS-BOT-BC306336  Hedypnois cretica B. Crampton 1957-6-5 4130 Yuba 2.6 miles northeast of Brown's Valley Post Office Comment
  RSA115530  Hedypnois cretica Beecher Crampton 1957-6-5 4130 Yuba 2.6 miles NE Brown's Valley post office. 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
  UCD132676  Hedypnois cretica Barbara Yungert 1974-5-8 132 Yuba along four wheel drive road, north side of Yuba River, Sierra Foothill Field Station. Comment
  UCD132677  Hedypnois cretica Barbara Yungert 1974-5-8 133 Yuba along four wheel drive road, north side of Yuba River, F-2 project area, Sierra Foothill Field Station. 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
  CHSC116114  Helenium puberulum Lowell Ahart 2015-11-18 20660 Yuba Marsh like area on the west side of the Feather River, about 1/2 mile south of Palm Avenue, about 1-1/2 miles southeast of the intersection of Palm Avenue and Larkin Raod, about 5 miles (air) northeast of Gridley. 26 Comment
  CAS-BOT-BC309978  Hemizonia congesta subsp. luzulifolia J. Clausen 1932-9-16 656 Yuba 5.4 miles southeast of Marysville on the road to Wheatland Comment
  CAS-BOT-BC309979  Hemizonia congesta subsp. luzulifolia J. Clausen 1932-9-16 656 Yuba 5.4 miles southeast of Marysville on the road to Wheatland Comment
  SEINET7072980  Hemizonia fitchii A. G. Vestal 1963-5-29 s.n. Yuba Beale Road (Route 20) & Route 99 at Yuba City northwest of Wheatland. UTM Zone 10, 618094mE, 4333199mN. Coordinate datum: NAD27). Comment
  RSA7607  Hemizonia luzulifolia subsp. rudis C. B. Wolf, B. D. Stark 1933-09 5504 Yuba Marysville airport, 2 miles N of Marysville; Sacramento Valley. 15 Comment
  CHSC97673  Hesperevax caulescens Lowell Ahart 2007-5-12 13775 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113480 Image available Hesperevax caulescens Lowell Ahart 2007-5-12 13775 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  RSA726567  Hesperevax caulescens L. Ahart 2007-5-12 13775 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  LA6491  Hesperocyparis macnabiana Carl Epling; June 1938 sn Yuba near Brownsville Comment
  SD40672  Hesperocyparis macnabiana Carl B. Wolf, E. R. Johnson 1934-10-4 Yuba Sierra Nevada Foothills, north side of Indiana Creek, 1.7 mile west of Indiana Ranch 550 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
  CHSC107429  Hesperolinon micranthum L. P. Janeway 2011-8-10 10642 Yuba Northern High Sierra Nevada. Plumas National Forest; serpentine slope on southeast side of Road 19N04 1.3 km north of Challenge-La Porte road; 2.2 air km northeast of Challenge. 1023 Comment
  CHSC47433  Hesperolinon micranthum Lowell Ahart 1976-5-27 1132 Yuba Along Ponderosa Way, near the Brownsville Dump, south-west of Brownsville. 548 Comment
  JEPS95854  Heteranthera rotundifolia Lowell Ahart 1999-9-17 8241 Yuba about 5 miles (air) northeast of Marysville; ; south of Woodruff Lane; just east of Mathews Road; east of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  CHSC73413  Heterocodon rariflorum B. Castro; L. Gehrung 1995-8-9 599 Yuba Fish Meadow. Ca 5 air mi NE of Strawberry Valley, and ca 1.5 mi E of Slate Creek. In meadow of unnamed stream flowing S into Canyon Ck, ca 500 ft W of USFS Rd 20N35 via unnamed dirt road. 1249 Comment
  CHSC97499  Heterocodon rariflorum Lowell Ahart 2007-5-14 13875 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC69150  Heteromeles arbutifolia Lowell Ahart 1997-8-7 7823 Yuba On the west side of the dirt road, near a unnamed stream, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  JEPS94515  Heteromeles arbutifolia Lowell Ahart 1997-8-7 7823 Yuba about 3 air mi se of Challenge (on w side of dirt road near an unnamed stream, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  UCD110312  Hieracium argutum William Haley; S. Haley, D. Thomas, P. Grady 2011-10-20 s.n. Yuba Tahoe National Forest. Vista Point trail, east side of New Bullards Bar Reservoir, along trail. 633 Comment
  CAS-BOT-BC55319  Hirschfeldia incana Lowell Ahart 1981-6-13 2855 Yuba Near McGinn Hill, Loma Rica. 300 Comment
  CHSC115907  Hoita orbicularis L. P. Janeway 2015-6-29 11786 Yuba Northern High Sierra Nevada. Plumas National Forest; Weiss Hill Meadow, a large meadow 600 air-km east-southeast of junction of Weiss Hill Road and Forbestown Road; at the head of a minor northwestern tributary to New York Creek. 853 Comment
  CHSC84167  Hoita orbicularis Lowell Ahart 2003-7-6 10354 Yuba In a meadow, east of the power line, about 50 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  SEINET7930195  Hoita orbicularis Ashley N. Egan, L. Egan 2005-6-23 279 Yuba In a meadow e of powerlines ca 50 yds w of Fountain Hill Rd, ca 5 airmiles N of Dobbins.; 0 840 Comment
  CAS-BOT-BC280822  Holcus lanatus Barbara T. Keller 1975-6-10 1494 Yuba Challenge Experimental Forest on La Porte Road near Challenge 762 Comment
  CHSC97229  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
  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
  JEPS118359  Holcus lanatus Lowell Ahart 2011-6-7 17427 Yuba East of a willow shurb, 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
  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
  SEINET4585087  Holcus lanatus A. Tiehm 1975-1 641 Yuba U.C. Sierra Foothill Field Station 198 Comment
  UCD84858  Holcus lanatus Beecher Crampton 1962-4-24 6297 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  CHSC78123  Holozonia filipes Lowell Ahart 2000-6-11 8463 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
  SBBG33900  Holozonia filipes L. S. Rose 1969-6-26 Yuba 5 mi S of Smartville, Camp Beale Rd 182 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
  RSA726566  Hordeum marinum subsp. gussoneanum L. Ahart 2007-5-14 13860 Yuba About 1/2 mile north of Fruitland Road, about 13.5 miles (air) northeast of Marysville. 29 Comment
  SACT001354  Hordeum marinum subsp. gussoneanum Michael Baad 1983-7-11 Yuba Wet grazed meadow. 1828.0 Comment
  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
  UCD85846  Hordeum marinum subsp. gussoneanum Beecher Crampton 1965-6-17 7370 Yuba Ca. 3/4 mile north of Stanfield Hill, Willow Glen Creek. Comment
  UCD85847  Hordeum marinum subsp. gussoneanum Beecher Crampton 1966-6-14 7755 Yuba 1 mile east of Brownsville. 731 Comment
  UCD85912  Hordeum marinum subsp. gussoneanum Barbara Yungert 1974-5-9 G- 11 Yuba Sierra Foothill Field Station. Along upper road of Schubert divide, near gate, SH project area. Comment
  UCD86150  Hordeum murinum subsp. glaucum Beecher Crampton 1962-4-17 6172 Yuba Ca. 2 miles south of Marysville. Comment
  UCR258224  Hordeum murinum subsp. glaucum George K. Helmkamp, Amy Barnes 2013-3-28 20253 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  CHSC97455  Hordeum murinum subsp. leporinum Lowell Ahart 2007-5-14 13861 Yuba Along the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  UCR257540  Hordeum murinum subsp. murinum George K. Helmkamp 2014-4-17 22758 Yuba Sierra Nevada Foothills, Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville 264 Comment
  CHSC84161  Horkelia californica subsp. dissita Lowell Ahart 2003-6-29 10318 Yuba Along a wash, on the east side of Ponderosa Way, about 1 1/2 miles north of La Porte Road, about 1 mile (air) west of Brownsville. 701 Comment
  JEPS104035  Horkelia californica subsp. dissita Lowell Ahart 2003-6-29 10318 Yuba Along a wash, on the e side of Ponderosa Way, ca 1 1/2 mi n of La Porte Rd, ca 1 mi (air) w of Brownsville. 701 Comment
  CAS-BOT-BC536174  Horkelia californica var. elata Alice Eastwood 1921-5-22 10545 Yuba Los Vergils Comment
  CAS-BOT-BC144066  Horkelia parryi Gladys L. Smith 1976-6-7 4617 Yuba About 15 miles southwest of La Porte 1524 Comment
  CHSC11350  Horkelia tridentata subsp. flavescens Lowell Ahart 1970-4-5 Yuba Near Challenge. 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
  NY15467  Hosackia incana J. M. Bigelow 1853-1 s.n. Yuba South Yuba Comment
  CHSC79379  Hydrilla verticillata T. C. Fuller; G. D. Barbe 1976-11-1 2231 Yuba 9th and B Streets, Marysville. Comment
  SD97027  Hydrilla verticillata G. D. Barbe, T. C. Fuller 1976-11-1 2231 Yuba Southeast edge of freshwater Ellis Lake, to 4I(c) feet deep, 9th and B Streets, Marysville. Comment
  CDA37683  Hydrilla verticillata Breckenridge/O Connell 2004-5-17 s.n. Yuba Near Oregon House. 0 Comment
  SBBG80277  Hydrilla verticillata K. Miller 1976-11-24 Yuba Ellis Lake, 9th and B St, Marysville Comment
  UCD138137  Hydrilla verticillata T. C. Fuller 1976-11-1 2231 Yuba Ellis Lake, 9th and B Streets, Marysville. Comment
  UCD138152  Hydrilla verticillata Richard Yeo 1976-11-1 s.n. Yuba Marysville, Lake Ellis, 9th and B street. Comment
  CHSC78149  Hypericum anagalloides Lowell Ahart 2000-6-11 8462 Yuba On the sides of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  JEPS104123  Hypericum anagalloides Lowell Ahart 2003-7-6 10350 Yuba In a meadow, e of the power line, ca 50 yd nw of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  JEPS113686  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
  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
  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
  CDA5083  Hypericum perforatum L. Ahart 2002-6-3 9682 Yuba On the north side of a small drainage, west of a large open meadow like area, about 150 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
  CHSC84218  Hypericum perforatum Lowell Ahart 2003-7-6 10352 Yuba Near a meadow, east of the power line, about 50 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  CHSC97746  Hypericum perforatum Lowell Ahart 2007-11-8 14583 Yuba On the south edge of a small island, on the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 91 Comment
  JEPS104350  Hypericum perforatum Lowell Ahart 2003-7-6 10352 Yuba Near a meadow, e of the power line, ca 50 yd w of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  CAS-BOT-BC401215  Hypericum perforatum Lowell Ahart 1979-6-25 s.n. Yuba 2 miles east of Challenge 700 Comment
  CDA37877  Hypericum perforatum Dirks 1977-8-31 PDR# 366309 Yuba Marysville. 0 Comment
  SEINET3441880  Hypericum scouleri subsp. scouleri Unknown 2003-7-6 10351 Yuba Dobbins, Dobbins, about 5 air miles north, east of the power line, about 50 yards west of Fountain Hill Road 830 Comment
  CHSC108203  Hypochaeris glabra Lowell Ahart 2011-6-7 17378 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC97504  Hypochaeris glabra Lowell Ahart 2007-5-12 13770 Yuba Along the road to the power towers, about 20 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCD37851  Hypochaeris glabra Beecher Crampton 1962-4-24 6255 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD80077  Hypochaeris glabra CNPS SN Foothill Team 2005-3-17 SNFN 0019 d Yuba CDFG Spenceville Wildlife Area. From CA Hwy 20 east, right on Smartville Rd. to Spenceville Wildlife Area, CDFG. Plot is accessible from 1st Fish and Game gate on E side of Spenceville Rd., Horsetrail (N/S), ~ 2/3 mile along horse trail, then SW between trail and Smartville Rd. 195 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-BC133617  Iris hartwegii Mrs. Martin Goerges 1953-6-24 s.n. Yuba Lake Vera, North Fork, Yuba River Comment
  CHSC112858  Iris hartwegii subsp. hartwegii L. P. Janeway 2014-4-24 11236 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  JEPS121746  Iris hartwegii subsp. hartwegii L. P. Janeway 2014-4-24 11236 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. Comment
  SEINET1908652  Iris hartwegii subsp. hartwegii G. K. Helmkamp, E. A. Helmkamp 2008-1 13492 Yuba Foothills, northern Sierra Nevada Mountains: Camptonville, at the junction of Henness Pass Road and CA-49. 823 Comment
  CHSC59575  Iris macrosiphon H. E. Mac Lennan 1992-4-5 10 Yuba 20 air miles se of Oroville. 533 Comment
  CHSC46181  Isoetes nuttallii Lowell Ahart 1981-3-24 2707 Yuba About 6 miles east of Wheatland. 45 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
  JEPS106166  Isoetes nuttallii Lowell Ahart 2004-4-27 10750 Yuba Along a very small drainage, about 100 yards northwest of where the drainage crosses the road, about 1/2 mile (air) southeast of Woodleaf 950 Comment
  CAS-BOT-BC69897  Isoetes nuttallii Alice Eastwood 1921-5-22 10527 Yuba Los Vergils. Comment
  CAS-BOT-BC69898  Isoetes nuttallii George J. Goodman; Lois Butler Payson 1936-7-6 2936 Yuba Luka-Chukai Mountains. 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
  CHSC78207  Isolepis cernua Lowell Ahart 2000-5-25 8399 Yuba On the sides of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  CHSC97651  Isolepis cernua Lowell Ahart 2007-5-14 13883 Yuba On the bottom of a swale, about 250 yards west of the power tower, power tower is about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  HSC97767  Isolepis cernua L. Ahart 2000-5-25 8399 Yuba Deep wash, N branch of Dry Creek, 100 yds. W of Smartville Rd., 2 mi. N of intersection of Waldo Rd. and Smartville Rd., 6 mi. S of Smartville 146 Comment
  CAS-BOT-BC112641  Isolepis setacea Lowell Ahart 1980-6-19 2394 Yuba 3 miles SE of Challenge. 800 Comment
  CHSC45187  Isolepis setacea Lowell Ahart 1980-6-19 2394 Yuba In small seep along the edge of a dirt road, about 3 air miles south-east of Challenge. 731 Comment
  SD130997  Isolepis setacea Lowell Ahart 1980-6-19 2394 Yuba 3 miles southeast of Challenge 800 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
  CHSC97445  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
  SBBG8607  Jensia rammii H. and M. Dearing 1939-5-6 3287 Yuba 8 mi SW of Challenge 762 Comment
  CAS-BOT-BC101878  Juglans R. S. Ferris 1927-11-6 6943 Yuba between Brown Valley & Yuba River Comment
  SBBG34171  Juglans hindsii M. A. Brayton 1964-5-23 43 Yuba slough area at NW end of Ellis Lake 18 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
  HSC97069  Juncus acuminatus L. Ahart 2002-10-9 9955 Yuba High water line of Sly Creek Reservoir about 1/8mi SW of Day Camp 1073 Comment
  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
  JEPS113874  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
  CHSC84166  Juncus articulatus Lowell Ahart 2003-7-2 10345 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
  CHSC107224  Juncus balticus subsp. ater 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
  CHSC97233  Juncus bufonius var. bufonius Lowell Ahart 2007-6-22 14216 Yuba Sides of a new ditch, near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  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
  JEPS113861  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
  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
  JEPS113712  Juncus covillei Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14294 Yuba On the south side of Hampshire Creek, just east of the cement dam on Hampshire Creek, east of a large wet meadow, about 100 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills 1021 Comment
  UC1254611  Juncus covillei Beecher Crampton 1966-6-14 7759 Yuba 1 mi e Brownsville (La Porte Road) Comment
  UCD33114  Juncus covillei Beecher Crampton 1966-6-14 7759 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  CHSC100329  Juncus cyperoides Lowell Ahart 2008-7-9 15049 Yuba In a small meadow, about 50 yards northwest of the dirt road (road now destroyed), north part of the Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills. 1015 Comment
  CHSC115469  Juncus cyperoides L. P. Janeway; Emily Meigs Doe 2015-4-29 11669 Yuba Northern High Sierra Nevada. Plumas National Forest; along Oroville-Wyandotte Canal at the eastern-most end of Road 19N32; about 0.8 km east of Weiss Hill Road and Forbestown Road. 838 Comment
  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
  CHSC97199  Juncus cyperoides Lowell Ahart 2007-8-7 14420 Yuba Along a small stream, about 100 yards northwest of the dirt road, north part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS113876  Juncus cyperoides Lowell Ahart 2007-8-7 14420 Yuba Along a small stream, about 100 yards northwest of the dirt road, north part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills 1021 Comment
  JEPS115042  Juncus cyperoides Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14498 Yuba In a small meadow, about 50 yards northwest of the dirt road, north part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills 1015 Comment
  SEINET6329237  Juncus cyperoides B. L. Wilson, L. Ahart, L. Janeway, P. F. Zika 2011-8-5 16772 Yuba Plumas National Forest, Sacramento Box Road, a closed road giving access to Hampshire Meadow, at the point where the stream cuts the road 1034 Comment
  CHSC96874  Juncus dubius Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-13 14302 Yuba About 30 yards east of a poor dirt road, about 1 1/2 miles (air) northeast of Clipper Mills. 1045 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
  UCD80385  Juncus effusus CNPS SN Foothill Team 2005-7-5 SNNR 0473 a Yuba CDFG Daugherty Hill Wildlife Area. 280 Comment
  CHSC84206  Juncus effusus subsp. pacificus Lowell Ahart 2003-7-2 10347 Yuba In a small stream, on the west side of Fountain Hill Road, about 3 miles south of Oregon Hill Road, about 1/2 mile (air) north of Fountain House Hill, about 3 miles (air) northeast of Dobbins. 841 Comment
  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
  JEPS113769  Juncus effusus subsp. pacificus Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14301 Yuba About 30 yards east of a poor dirt road, about 1 1/2 miles (air) northeast of Clipper Mills 1045 Comment
  JEPS113846  Juncus effusus subsp. pacificus Lowell Ahart 2007-8-7 14406 Yuba Hampshire Creek Meadow, about 80 yards west of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  SEINET3450942  Juncus effusus var. exiguus Unknown 2003-7-2 10347 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
  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
  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
  CHSC97111  Juncus laccatus Lowell Ahart 2007-8-7 14414 Yuba On the east side of a small pond, on the west side of the dirt road, Hampshire Creek Meadow, about 5 yards west of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS113845  Juncus laccatus Lowell Ahart 2007-8-7 14414 Yuba On the east side of a small pond, on the west side of the dirt road, Hampshire Creek Meadow, about 5 yards west of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  RSA727523  Juncus laccatus L. Ahart 2007-8-7 14414 Yuba About 1 mile (air) east of Clipper Mills. 1021 Comment
  CHSC107309  Juncus occidentalis L. P. Janeway 2011-7-5 10493 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 480 m northeast of Marysville Road. Near top of the saddle, springtime wet meadow, along shallow depression where a little water pools while draining from meadow. 756 Comment
  CHSC84399  Juncus occidentalis Lowell Ahart 2003-7-6 10365 Yuba Near a meadow, east of the power line, about 30 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  JEPS104245  Juncus occidentalis Lowell Ahart 2003-7-6 10365 Yuba Near a meadow, e of the power line, ca 30 yd w of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  UCD81507  Juncus occidentalis Christopher Michael Bronny 2009-4-1 18 Yuba Oat Hills' area of Sierra Nevada foothills. 114 Comment
  CHSC63198  Juncus orthophyllus Lowell Ahart 1994-6-27 7378 Yuba Near the northeast side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles northeast of Strawberry Valley. 1219 Comment
  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
  CHSC97323  Juncus oxymeris Stephanie Chen 2007-7-17 Yuba Northern Sierra Nevada Foothills. Lower slope on west side of Browns Valley Ridge, about 1/2 mile east of Loma Rica Road and about 3 1/4 miles southwest of Loma Rica. 59 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
  CHSC106634  Juncus tenuis Peter F. Zika 2010-6-22 24977 Yuba Northern Sierra Nevada Foothills (n SNF); Spring Valley Road NE of Browns Valley Ridge. 90 Comment
  CHSC47571  Juncus tenuis Lowell Ahart 1980-8-12 2538 Yuba Slate Creek, west of where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  JEPS103390  Juncus tenuis Lowell Ahart 2002-10-9 9951 Yuba Area E of a spring, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS115068  Juncus tenuis Lowell Ahart 2007-11-1 14539 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  SEINET3450946  Juncus tenuis Unknown 2003-7-6 10365 Yuba Dobbins, Dobbins, about 5 air miles north, east of the power line, about 30 yards west of Fountain Hill Road 830 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
  CHSC83059  Juncus usitatus Lowell Ahart 2002-10-8 9947 Yuba On the edge of a pond, about 100 yards north of Long Ravine Road, about 300 yards southeast of the intersection of Camp Far West Road and Long Ravine Road there is a poor gate on the north side of the road, north of Camp Far West Reservoir. 121 Comment
  CAS-BOT-BC236790  Keckiella breviflora David D. Keck 1930-7-25 984 Yuba Bullards Bar Reservoir, Sierra Nevada 457 Comment
  POM195081  Keckiella breviflora subsp. glabrisepala D. D. Keck 1930-7-25 984 Yuba Bullards Bar Reservoir. 457 Comment
  UCR194903  Keckiella breviflora subsp. glabrisepala George K. Helmkamp, E. A. Helmkamp 2007-5-26 12141 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
  CAS-BOT-BC235667  Keckiella breviflora var. glabrisepala David D. Keck 1930-7-25 984 Yuba Bullards Bar Reservoir 450 Comment
  NY790162  Keckiella breviflora var. glabrisepala D. D. Keck 1930-7-25 984 Yuba Bullards Bar Reservoir 457.2 Comment
  CAS-BOT-BC237820  Keckiella lemmonii Lowell Ahart 1980-7-25 2484 Yuba Near Slate Creek 1200 Comment
  NY790334  Keckiella lemmonii L. Ahart 1980-7-25 2484 Yuba Near Slate Creek. 1200 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
  JEPS121313  Kickxia elatine Lowell Ahart 2013-11-30 19300 Yuba On the sides of a deep wash (Willow Glen Creek), NW of Dry Creek, below the high water line of Collins Lake, about 100 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  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
  CHSC112371  Lactuca virosa L. P. Janeway 2014-6-25 11420 Yuba Northern High Sierra Nevada. Plumas National Forest; Along Oregon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km northwest of Summit Hill; slope above Burnt Bridge Creek. 792 Comment
  CHSC112372  Lactuca virosa L. P. Janeway 2014-6-25 11420 Yuba Northern High Sierra Nevada. Plumas National Forest; Along Oregon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km northwest of Summit Hill; slope above Burnt Bridge Creek. 792 Comment
  JEPS121747  Lactuca virosa L. P. Janeway 2014-6-26 11425 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. Comment
  CAS-BOT-BC341288  Lagophylla glandulosa John Thomas Howell; Gordon H. True 1969-6-24 5090 Yuba Vineyard Creek, about 4 miles south of Smartville, on the Beale AFB Road 152 Comment
  CAS-BOT-BC341289  Lagophylla glandulosa Alice Eastwood 1921-5-22 10533 Yuba Los Vergils Comment
  CAS-BOT-BC341290  Lagophylla glandulosa Junea Kelley 1920-10-31 s.n. Yuba Los Vergels [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
  UCD133692  Lasthenia californica subsp. californica Barbara Yungert 1974-4-16 55 Yuba southern slope; along road 6, K 1-11 project area, Sierra Foothill Field Station. 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
  JEPS113621  Lasthenia fremontii Lowell Ahart 2007-5-12 13771 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UCSC008611  Lasthenia fremontii Lowell Ahart 2007-5-12 13771 Yuba 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
  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
  SBBG28004  Lasthenia fremontii A. Carter 1940-4-21 1528 Yuba 4.3 mi SE of Maryville rd to Spenceville 30 Comment
  UC718224  Lasthenia glaberrima Carl B. Wolf 1937-5-18 8735 Yuba 2 mi s Marysville; Sacramento Valley 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
  CHSC112856  Lathyrus brownii L. P. Janeway 2014-4-22 11230 Yuba Northern High Sierra Nevada. Plumas National Forest; in shallow bowl at head of Little Oregon Creek; 0.5 km southwest of Oregon Hill Road; 3.4 air-km south-southeast of Challenge. 823 Comment
  CHSC78145  Lathyrus hirsutus Lowell Ahart 2000-5-25 8394 Yuba On dry soil of open pasture field, near 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
  JEPS98596  Lathyrus hirsutus Lowell Ahart 2000-5-25 8394 Yuba 6 air miles S of Smartville (field near a N branch of Dry Dreek, 2 mi N of intersection of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  UCD106387  Lathyrus nevadensis Kathleen Keliher 1975-5-15 112 Yuba Along Peterson Road, 1 mile from Oregon House Road. Comment
  CAS-BOT-BC213282  Lathyrus sulphureus Lowell Ahart 1979-6-3 s.n. Yuba 1 mi S of Challenge 700 Comment
  CHSC43421  Lathyrus sulphureus Lowell Ahart 1979-6-3 1919 Yuba About 1 mile south of Challenge. 640 Comment
  SBBG3370  Lathyrus sulphureus H. and M. Dearing 1939-5-8 3298 Yuba N of Bullards Bar Dam on Yuba River Comment
  UCD106449  Lathyrus sulphureus Kathleen Keliher 1975-5-13 103 Yuba Along Road 4, near Meathook gate, L 1-21 project area, Sierra Foothill Field Station. 243 Comment
  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
  UCR234193  Layia chrysanthemoides George K. Helmkamp, E. A. Helmkamp 2011-4-10 17165 Yuba Sacramento Valley, along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland 44 Comment
  CAS-BOT-BC321710  Layia fremontii Gordon H. True 1966-4-7 2679 Yuba About 5 miles E of Wheatland and 1 mile N of Bear River. 54 Comment
  CAS-BOT-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
  RSA503985  Layia fremontii B. G. Baldwin 1988-3-21 687 Yuba 3.3 miles W of junction with County Road E21 (road to Collins Lake, Bullards Bar Reservoir) along CA State Hwy 20. 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
  CHSC108190  Leontodon saxatilis subsp. longirostris Lowell Ahart 2011-6-7 17379 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 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
  JEPS115028  Leontodon saxatilis subsp. longirostris Lowell Ahart 2007-11-1 14532 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  CAS-BOT-BC339138  Leontodon saxatilis subsp. saxatilis Lowell Ahart 1979-6-3 s.n. Yuba 1 mi s of Challenge 700 Comment
  UCR257542  Leontodon taraxacoides George K. Helmkamp 2014-4-17 22760 Yuba Sierra Nevada Foothills, Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville 264 Comment
  CDA42843  Leontodon taraxacoides subsp. longirostris L. Ahart 2011-6-7 17379 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. Comment
  CAS-BOT-BC88875  Lepidium chalepense Michael A. Vincent 1999-6-12 8637 Yuba Along canal parallel to Route 20 at jct. 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
  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
  CDA25061  Lepidium strictum D. L. Wilson 1976-4-5 Yuba City Park, Yuba Street, Marysville. 0 Comment
  CAS-BOT-BC273946  Leptochloa fusca subsp. fascicularis Lowell Ahart 1977-8-31 1536 Yuba 2 miles north-east of Marysville 30 Comment
  CHSC97638  Leptosiphon bicolor Lowell Ahart 2007-5-14 13878 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCD82077  Leptosiphon bicolor Robin McMaster 1973-4-7 228 Yuba Browns Valley, Peoria Cemetery. Comment
  UCD112035  Lessingia Christopher Mallek 2008-5-5 IC3- 17 Yuba Indiana Creek. 617 Comment
  SEINET11263974  Lessingia nemaclada Lowell Ahart 2002-10-10 9979 Yuba On the east side of the dirt road, east of the upper part of Engelbright Reservoir on the Yuba River, along Rice's Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20.; 0 166 Comment
  UC1287451  Lessingia virgata Willard Spence 1962-7-25 732 Yuba Rt. 20 10 mi ne Marysville (on road to Grass Valley) 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
  UCD92453  Leymus X multiflorus Collector Unknown 1948-1 s.n. Yuba Near Marysville. Comment
  RSA129554  Leymus triticoides F. W. Embree 1934-4-30 47 Yuba 4 miles ENE. of Marysville B.M 23 Comment
  UC984808  Lilium humboldtii A. M. Vollmer and L. Beane Jul 1951 187 Yuba Brownsville Comment
  CAS-BOT-BC130619  Lilium humboldtii Mrs. J. E. Cramsie 1923-6-14 s.n. Yuba Smartsville 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
  UCD82295  Lilium humboldtii Robin McMaster 1973-6-24 507 Yuba North San Juan. 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
  RSA130323  Lilium humboldtii subsp. humboldtii Albert M. Vollmer 1949-7-6 s.n. Yuba 1 mile from Challenge on Chllenge-Camptonville Road Comment
  RSA65288  Lilium humboldtii subsp. humboldtii Albert M. Vollmer, L. Beane 1951-07 s.n. Yuba Brownsville Comment
  CAS-BOT-BC130870  Lilium pardalinum Mrs. J. E. Cramsie 1923-6-14 s.n. Yuba Smartsville Comment
  SBBG4057  Limnanthes alba H. and M. Dearing 1939-5-6 3284 Yuba near Challenge Comment
  UCD37879  Limnanthes alba Beecher Crampton 1962-4-24 6303 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CAS-BOT-BC110649  Limnanthes alba Peter H. Raven 1953-5-9 5477 Yuba 2 miles from Brownsville on road to Dobbins. Comment
  UCD116452  Limnanthes alba Kathleen Keliher 1975-5-1 98 Yuba along Scott-Grant Road, 1.5 miles from Loma Rica Road. 121 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
  SEINET6670288  Limnanthes alba var. alba L. Constance 1949-4-29 3280 Yuba Oregon House, 2 miles W of Dobbins. 457 Comment
  CDA6279  Limnophila X ludoviciana L. Ahart 1977-9-25 Yuba Sam Shintaffer Farm, 2 miles northeast of Marysville. 0 Comment
  JEPS95981  Limosella acaulis Lowell Ahart 1999-9-17 8247 Yuba Sam Shintaffer Farm; south of Woodruff Lane; south of Mathews Road; 100 yards south of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  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
  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
  CHSC83045  Lindernia dubia var. anagallidea Lowell Ahart 2002-10-9 9971 Yuba On the south bank of Lost Creek, below the high water line of Sly Creek Reservoir, about 200 yards southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS103441  Lindernia dubia var. anagallidea Lowell Ahart 2002-10-9 9971 Yuba On the S bank of Lost Creek, below the high water line of Sly Creek Reservoir, ca 200 yards SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS95147  Lindernia dubia var. anagallidea Lowell Ahart 1997-8-13 7860 Yuba about 2 1/4 air mi e of Borwn's Valley (on s side of Scott Forbes Road, 1/4 mi e of intersection of Scott Forbes Road and Peoria Road, just e of Gray Drive) 91 Comment
  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
  RSA0012080  Linum bienne George K. Helmkamp, E. A. Helmkamp 2011-5-6 17208 Yuba junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg ) of Wheatland. 56 Comment
  UCD110586  Linum bienne Barbara Yungert 1974-4-25 78 A Yuba Four wheel drive road, SC-14 project area, Sierra Foothill Field Station. 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
  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
  CHSC90347  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
  CAS-BOT-BC430984  Lithophragma bolanderi Alice Eastwood 1921-5-22 10563 Yuba Los Vergils Comment
  CAS-BOT-BC325968  Lithospermum californicum Lowell Ahart 1979-6-25 s.n. Yuba 2 miles E of Challenge. 700 Comment
  CHSC46758  Lithospermum californicum Lowell Ahart 1980-6-19 2410 Yuba Along the edge of the dirt road, about 4 miles east of Challenge. 822 Comment
  CHSC97506  Logfia gallica Lowell Ahart 2007-5-12 13768 Yuba Along the road to the power towers, about 20 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  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
  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
  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
  CAS-BOT-BC269199  Lolium temulentum T. C. Fuller 1971-6-13 19888 Yuba East shore of Lake Francis, Lake Francis Rd., 1 mi. s.e. of Dobbins, Sierra Nevada 533 Comment
  UCD112039  Lomatium marginatum Christopher Mallek 2008-5-5 IC3- 12 Yuba Indiana Creek. 617 Comment
  RSA22243  Lomatium marginatum L. S. Rose 1939-6-6 39223 Yuba Brownsville 686 Comment
  CHSC68466  Lomatium marginatum var. marginatum Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7734 Yuba Along 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
  CHSC96380  Lomatium marginatum var. marginatum L. P. Janeway 2006-5-24 8622 Yuba Northern High Sierra Nevada Foothills. East side of Ponderosa Way 1.3 km north of La Porte Road and Brownsville. 686 Comment
  CHSC59490  Lomatium utriculatum H. E. Mac Lennan 1992-4-15 19 Yuba 20 air miles se of Oroville. 518 Comment
  SEINET7042410  Lomatium utriculatum 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
  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
  UCD80205  Lonicera interrupta CNPS SN Foothill Team 2005-7-6 SNNR 0477 Yuba CDFG Daugherty Hill Wildlife Area. 262 Comment
  CHSC110340  Lonicera involucrata var. involucrata L. P. Janeway; Tim Hanson 2013-4-25 11093 Yuba Northern High Sierra Nevada. Plumas National Forest; 50 m east of Oregon Hill Road between Burnt Bridge Creek and Little Oregon Creek. 640 Comment
  CHSC11389  Lonicera involucrata var. involucrata Lowell Ahart 1968-5-10 Yuba Near Challenge 762 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
  SEINET7042628  Lotus micranthus A. G. Vestal 1963-5-7 s.n. Yuba Ca. 3.5 miles north of Wheatland. Camp Far West quadrangle UTM Zone 10, 640908mE, 4323324mN. Comment
  JEPS118356  Lotus purshianus var. purshianus Lowell Ahart 2011-6-7 17393 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  SEINET3563125 Image available Lotus purshianus var. purshianus G. K. Helmcamp, E. A. Helmkamp 2008-10-6 14201 Yuba Sacramento Valley: junction of CA-65 and Ostrom No. 3 Road, SE of Olivehurst 24 Comment
  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
  JEPS103444  Ludwigia palustris Lowell Ahart 2002-10-9 9969 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
  UC710392  Lupinus albifrons C. P. Smith 1946-5-2 46261 Yuba Browns Valley Road 10 mi sw Brownsville Comment
  UCD105997  Lupinus albifrons Barbara Yungert 1974-5-21 169 Yuba north side of Yuba River, Sierra Foothill Field Station. 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-BC196030  Lupinus albifrons var. albifrons Charles Piper Smith 1948-4-27 48183 Yuba Junction Dobbins & Browns Valley-Brownsville roads. Stanfield Hill, 3.4 miles northeast 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
  CHSC68478  Lupinus albifrons var. albifrons Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7727 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 Scotts Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 198 Comment
  CAS-BOT-BC196316  Lupinus albifrons var. flumineus Charles Piper Smith 1949-4-16 49106 Yuba Rackerby, 2.4 miles east - Brownsville Road Comment
  CHSC108213  Lupinus benthamii Lowell Ahart 2011-6-7 17395 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS118298  Lupinus benthamii Lowell Ahart 2011-6-7 17395 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  SEINET10970218  Lupinus benthamii Charles Piper Smith 1948-4-27 Smith 48175 Yuba Junction dobbins and browns valley-brownsville roads, stanfield hill, 0.5 mile Sw Comment
  SEINET11071818 Image available Lupinus benthamii Kennth Wagnon 1963-6-11 Yuba End of Scott-Forbes Road (T.16N, S.10), vicinity of Sierra Foothills Range Field Station, ca. 3 miles north of Smartville 335 Comment
  UCD107038  Lupinus benthamii K. A. Wagnon 1963-6-11 s.n. Yuba at roadside at end of Scott-Forbes Road, vicinity of Sierra Foothills Range Field Station, ca. 3 miles north of Smartville. 335 Comment
  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
  UCD107041  Lupinus benthamii Barbara Yungert 1974-4-12 22 Yuba Along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  RSA21301  Lupinus benthamii var. benthamii Carl B. Wolf 1937-5-13 8646 Yuba 1.2 mi. below Stanfield Hill on road to Browns Valley. 274 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
  UC710388  Lupinus bicolor C. P. Smith 1946-5-2 46249 Yuba 3 mi se Hammonton Road Smartville; Smartville - 3 mi se Hammonton Road Comment
  UCR257544  Lupinus bicolor George K. Helmkamp 2014-4-17 22762 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
  SEINET7063123 Image available Lupinus bicolor A. G. Vestal 1963-5-29 s.n. Yuba Olivehurst-Smartville Road 0.4 mile west southwest of Road to Beale Air Force Base. Road side in weedy grassland. Comment
  UCD107333  Lupinus bicolor Barbara Yungert 1974-4-16 46 Yuba Cambell Valley, Sierra Foothill Field Station. Comment
  UCD23428  Lupinus densiflorus Gordon Murray 1977-5-15 7 Yuba Yellow irregular flowers. Between rocks, creekside, shady slope. Jed Smith Creek off Scott Forbes Rd. in Browns Valley. 22 miles E of Marysville on Hwy 20. 304 Comment
  CHSC41210  Lupinus latifolius J. D. Jokerst 1984-4-23 1981 Yuba Slopes ca 1/4 mile N of the North Fork Yuba River at Wambo Bar. Comment
  UC865432  Lupinus lepidus var. sellulus Lewis S. Rose 1939-6-6 39227 Yuba Woodleaf 944 Comment
  UC710380  Lupinus microcarpus var. densiflorus C. P. Smith 1946-4-25 46224 Yuba Hiway 24 at railroad crossing 1 mi n Marysville Comment
  UC710386  Lupinus nanus C. P. Smith 1946-5-2 46266 Yuba Dobbins Road 3 mi w Oregon House Comment
  UC710387  Lupinus nanus C. P. Smith 1946-5-2 46255 Yuba 1.4 mi e Browns Valley Comment
  UC710394  Lupinus nanus C. P. Smith 1946-4-25 46221 Yuba Honcut Road 3.8 mi n Loma Rica Comment
  UC710407  Lupinus nanus C. P. Smith 1946-5-2 46253 Yuba Hiway 20, 0.3 mi w Smartville; w of Smartville Comment
  UC710408  Lupinus nanus C. P. Smith 1946-5-2 46246 Yuba Hammonton Road 1.7 mi e South Marysville; e of South Marysville Comment
  UC710412  Lupinus nanus C. P. Smith 1946-5-2 46251 Yuba Hiway 20, 0.3 mi w Smartville; w of Smartville Comment
  UCD109265  Lupinus nanus Barbara Yungert 1974-4-30 97 Yuba south of county road, below H-9 project area, Sierra Foothill Field Station. Comment
  UC710406  Lupinus pachylobus C. P. Smith 1946-5-2 46259 Yuba Browns Valley Road 7.1 mi sw Brownsville; sw of Brownsville Comment
  SD50709  Lupinus polyphyllus subsp. superbus Darley F. Howe 1959-8-2 2780 Yuba 1.0 mile west of Yuba Pass Comment
  UCR196997  Lupinus polyphyllus var. burkei George K. Helmkamp, E. A. Helmkamp 2008-5-20 13490 Yuba Foothills, northern Sierra Nevada Mountains, Camptonville, at the junction of Henness Pass Road and CA-49 823 Comment
  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
  SEINET10903612  Lupinus vallicola subsp. apricus Charles Piper Smith 1948-4-27 Smith 48182 Yuba Junction Dobbins & Browns Valley - Brownsville roads. Stanfield Hill, 3.4 mi NE. 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
  JEPS117663  Luzula cascadensis Lowell Ahart 2010-7-27 16914 Yuba On the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam 1219 Comment
  CHSC107564  Luzula macrantha Lowell Ahart 2011-6-7 17419 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
  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
  JEPS118081  Luzula macrantha Lowell Ahart 2011-6-7 17419 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-BC441310  Luzula macrantha Lowell Ahart 1968-4-21 s.n. Yuba Sierra Nevada: 5 miles SE of Challenge 609 Comment
  SEINET6178448  Luzula macrantha Frank Polach 1967-4-22 11 Yuba Located 2.5 miles east of Brownsville.; 0 762 Comment
  JEPS126010  Luzula parviflora D. W. Taylor 2001-6-19 17793 Yuba Ca 3 air miles SW of Union Hill; creek along Forest Road 20N35 tributary to Brushy Creek near Daimond Ravine. 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
  JEPS120941  Luzula subsessilis Lowell Ahart 2013-4-23 18567 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
  CDA28924  Lycopodiella cernua Berger/Saunders 2009-4-9 s.n. Yuba Olivehurst, 1714 Chateau Drive. 0 Comment
  CHSC116111  Lycopus americanus Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20638 Yuba On the bottom of the 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
  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
  JEPS63276  Lycopus americanus W. L. Jepson 1934-7-29 16756 Yuba Marysville 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
  UCD111879  Maclura pomifera Barbara Yungert 1974-5-15 163 Yuba Sierra Foothill Field Station. Above Dry Creek near P-2 fence line, P-2 project area. Comment
  UCR169017  Madia David Charlton 2005-5-16 8032 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  UCD134173  Madia citriodora Barbara Yungert 1974-5-1 102 Yuba along irrigation ditch, north of road, SC-14 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC344281  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
  POM225673  Madia elegans subsp. vernalis D. D. Keck, Palmer Stockwell 1935-5-16 3313 Yuba N edge of Lebec. Comment
  SEINET10474301  Madia elegans subsp. vernalis Lowell Ahart, Peter Ahart 1983-8-10 Ahart 4274 Yuba Along Peterson Rd, ca. 5 mi e of Challenge. Yellow Pine Forest; 1000 m. 1000 Comment
  CAS-BOT-BC344595  Madia exigua Lowell Ahart 1979-6-3 s.n. Yuba 1 mi s of Challenge 700 Comment
  CHSC63238  Madia exigua Lowell Ahart 1994-6-5 7300 Yuba On the south side of Costa Creek, on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  SEINET7072998  Madia exigua A. G. Vestal 1963-5-30 s.n. Yuba Turn-off to Timbuctoo from Route 20 at Yuba River. UTM Zone 10, 643966mE, 4342277mN. Coordinate datum: NAD27). Comment
  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-BC344593  Madia exigua Alice Eastwood 1921-5-22 10574 Yuba Los Vergils Comment
  CAS-BOT-BC343559  Madia gracilis Lowell Ahart 1980-8-12 2551 Yuba Along Slate Creek 1250 Comment
  CHSC110320  Madia gracilis L. P. Janeway 2013-6-7 11137 Yuba Northern High Sierra Nevada. Along Oregon Hill Road just south of Little Oregon Creek. 628 Comment
  CHSC37191  Madia gracilis L. Ahart 1982-7-4 3660 Yuba Ca. 1/2 mi e of Brownsville along LaPorte Rd. 700 Comment
  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
  RSA795345  Madia gracilis L. Ahart 2011-6-7 17380 Yuba Road margin about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 air miles northeast of Marysville. 66 Comment
  UCD134296  Madia gracilis G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12837 Yuba Northern Sierra Nevada Mountains Foothills: along Hwy. CA-49, 0.5 mile south of Camptonville. 817 Comment
  UCR197052  Madia gracilis George K. Helmkamp, E. A. Helmkamp 2008-5-20 13476 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  CAS-BOT-BC343560  Madia gracilis David D. Keck 1930-7-25 985 Yuba Between Bullards Bar Reservoir and Camptonville 600 Comment
  CAS-BOT-BC343561  Madia gracilis David D. Keck 1930-7-25 985 Yuba Between Bullards Bar Reservoir and Camptonville 600 Comment
  SBBG128105  Madia gracilis L. Ahart 2011-6-7 17380 Yuba rd margin, ca. 25 yards S of the huge gravel bar along the Yuba River, ca. 150 yards W of the S end of Parks Bar Bridge (Hwy 20), ca. 15 mi (by air) NE of Marysville 66 Comment
  SEINET7072722  Madia sativa 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
  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
  UCD134347  Malacothrix clevelandii Collector Unknown 1925-5-17 1622 Yuba Marysville Buttes. 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
  CHSC40955  Malacothrix floccifera J. D. Jokerst 1984-7-5 2084 Yuba Canyon of the N. Fork Yuba River, N. of the river at its junction with Deadwood Creek. 701 Comment
  UCD134398  Malacothrix floccifera Barbara Yungert 1974-4-17 60 Yuba North of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  CHSC110339  Malus pumila L. P. Janeway; Tim Hanson 2013-4-25 11094 Yuba Northern High Sierra Nevada. Plumas National Forest; 50 m east of Oregon Hill Road between Burnt Bridge Creek and Little Oregon Creek. 640 Comment
  CHSC97488  Malva nicaeensis Lowell Ahart 2007-5-14 13849 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. 28 Comment
  UCD107669  Marah fabacea Barbara Yungert 1974-4-10 16 Yuba Along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  JEPS107451  Marah fabacea var. agrestis Lowell Ahart 2005-3-11 11602 Yuba In center of large rock outcrop, just E of the poor dirt road, ca. 1/2 mi W of Marysville Rd, ca. 1/2 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/2 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 386 Comment
  UCD125021  Marrubium vulgare Barbara Yungert 1974-5-6 120 Yuba behind second house from west end, south of station, Sierra Foothill Field Station. Comment
  RSA727529  Marsilea vestita subsp. vestita L. 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. 74 Comment
  CAS-BOT-BC422638  Meconella californica Helen McGovern 1928-3-23 s.n. Yuba Smartville 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
  JEPS95892  Medicago lupulina Lowell Ahart 1999-9-5 8193 Yuba on the disturbed area on the south side of Woodruff Lane; just west of Kimball Lane; about 5 miles (air) northeast of Marysville 24 Comment
  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
  UCD33242  Melica californica var. nevadensis Beecher Crampton 1967-5-17 7940 Yuba Yuba County, 5 miles east of Brown's Valley, sierra foothill range field station. Comment
  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
  JEPS100263  Melica geyeri var. geyeri Dean W. Taylor 2001-5-9 17636 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 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
  UCD88662  Melica subulata W. R. Powell 1968-5-24 1553 Yuba 5 miles SSE of Challenge, 3/4 miles south of Greenville. In pine forest community. 640 Comment
  JEPS94322  Melica torreyana Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7730 Yuba about 17 mi ne of Marysville (along the s side of Dry Creek, n of the poor dirt road, about 1 mi e of Scott Forbes Road (Long Bar Road)); Dry Creek 121 Comment
  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
  CDA19166  Mentha pulegium Roush 2000-6-27 PDR 1199230 Yuba Sacramento Valley; on N side of Iowa City Road, Marysville. 0 Comment
  JEPS113451  Mentha pulegium Lowell Ahart 2007-6-22 14209 Yuba Along a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 29 Comment
  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
  UCD37850  Micropus Beecher Crampton 1962-4-24 6254 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD37864  Micropus Beecher Crampton 1962-4-24 6276 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCR169025  Micropus californicus David Charlton 2005-5-16 8020 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
  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
  CAS-BOT-BC348440  Micropus californicus var. californicus L. S. Smith 1932-4-29 2642 Yuba South of Spenceville Road to Sheridan 304 Comment
  CAS-BOT-BC348441  Micropus californicus var. californicus Alice Eastwood 1921-5-22 10534 Yuba Los Vergils 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
  UCD118914  Microsteris gracilis Kathleen Keliher 1975-5-15 110 Yuba Along Cleaveland Road across from Mountain View property, 3 miles E of Camptonville. 914 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
  CHSC115287  Mimulus aurantiacus var. grandiflorus Lowell Ahart 2015-4-30 20130 Yuba Serpentine, on the east side of the quarry, about 1 1/4 mile (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. 709 Comment
  UC614489  Mimulus aurantiacus var. grandiflorus L. Constance 1938-6-8 2291 Yuba 4 mi nw North San Juan; Sierra Nevada foothills, Middle Fork Yuba River 426 Comment
  UC943803  Mimulus aurantiacus var. grandiflorus H. E. McMinn 1946-5-11 5507 Yuba road from Dobbins to Camptonville; North Fork Yuba River 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
  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
  SEINET7072995  Mimulus guttatus A. G. Vestal 1963-5-30 s.n. Yuba Meadow about 3.9 miles south of Brownsville and 0.3 mile north of Willow Glen Ranch on Willow Glen Road. UTM Zone 10, 647202mE, 4364746mN. Coordinate datum: NAD27). Comment
  UC1239059  Mimulus kelloggii Freed W. Hoffman 1949-5-14 3165 Yuba near bridge Yuba River (Highway 49) Comment
  UCD84997  Mimulus kelloggii Dena Grossenbacher; Ryan Briscoe Runquist 2009-4-1 960 Yuba 0.9 miles west of Highway 49 along the north side of Moonshine Road which starts on the north side of the Highway 49 Yuba River bridge. 451 Comment
  RSA535807  Mimulus kelloggii David M. Thompson 1988-3-21 848 Yuba Between 0.8 and 0.9 mi W of Hwy 49 bridge over Yuba River along Moonshine Road, which starts on the N side of the bridge. 442 Comment
  UCD122738  Mimulus kelloggii R. O. Hanes 1991-5-21 15 Yuba Road 18N77 or 121. Tahoe Forest. 579 Comment
  SJSU10222  Moehringia macrophylla C. W. Sharsmith 1983-6-8 8803 Yuba Slate Cr at bridge crossing of Scales & Quincy-La Porte Rd 1066 Comment
  CHSC113180  Mollugo verticillata Lowell Ahart 2013-11-30 19298 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  CHSC81801  Mollugo verticillata Lowell Ahart 2001-11-2 9402 Yuba Camp Far West Reservoir, about 1/4 mile mortheast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  CAS-BOT-BC435063  Mollugo verticillata Alice Eastwood 1913-7-3 3409 Yuba Wheatland Comment
  NY429325  Monardella candicans var. venosa J. M. Bigelow 1854-5-25 s.n. Yuba Plain of Feather River near Marysville Comment
  CHSC69140  Monardella sheltonii Lowell Ahart 1997-8-7 7812 Yuba On the north side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  RSA0037137  Monardella sheltonii L. P. Janeway 2014-6-26 11426 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  CHSC96425  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
  CDA32542  Muhlenbergia filiformis L. Ahart 2002-10-9 9972 Yuba On the south bank of Lost Creek, below the high water line of Sly Creek Reservoir, about 200 yards southwest of the Day Camp, Sly Creek Reservoir Comment
  CHSC83067  Muhlenbergia filiformis Lowell Ahart 2002-10-9 9972 Yuba On the south bank of Lost Creek, below the high water line of Sly Creek Reservoir, about 200 yards southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CAS-BOT-BC274930  Muhlenbergia rigens Lowell Ahart 1977-2-16 s.n. Yuba About 4 miles NE of Marysville Comment
  UCD86997  Muhlenbergia rigens Beecher Crampton 1957-6-5 4144 Yuba 1 mile east of Stanfield Hill. Comment
  UCD86998  Muhlenbergia rigens Beecher Crampton 1963-9-9 6880 Yuba 2.5 miles n.n.w. of Smartsville, 5 miles east Brown's Valley. U.C. Sierra Foothill Station. Comment
  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
  JEPS95852  Myriophyllum aquaticum Lowell Ahart 1999-9-17 8258 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
  CDA19112  Myriophyllum spicatum Onstott, Storm 2001-3-19 PDR P 116776 Yuba on Durby Lane, Browns Valley. 0 Comment
  CAS-BOT-BC456175  Najas guadalupensis J. T. Howell; Gordon H. True 1969-6-24 5103 Yuba Ca. 1 mile NW of Spenceville (site) on Cox Creek 152 Comment
  UCD87472  Nassella pulchra Beecher Crampton 1957-6-5 4143 Yuba 1 mile east of Stanfield Hill. Comment
  UCD87479  Nassella pulchra Beecher Crampton 1962-4-24 6274 Yuba 5 miles east of Browns Valley. Sierra Foothill Range 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
  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
  POM299237  Navarretia eriocephala L. S. Rose 1939-6-5 s.n. Yuba Smartsville 183 Comment
  CHSC107430  Navarretia filicaulis L. P. Janeway 2011-8-10 10641 Yuba Northern High Sierra Nevada. Plumas National Forest; serpentine slope on southeast side of Road 19N04 1.3 km north of Challenge-La Porte road; 2.2 air km northeast of Challenge. 1023 Comment
  CHSC44335  Navarretia filicaulis Lowell Ahart 1975-6-25 809 Yuba Near the Brownsville dump, about 1 mile west of Brownsville. 396 Comment
  CHSC69144  Navarretia filicaulis Lowell Ahart 1997-8-7 7807 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
  RSA123151  Navarretia filicaulis A. E. Wieslander 1933-6-21 255 Yuba 1.5 miles west of Rapps Ranch 457 Comment
  CAS-BOT-BC230300  Navarretia heterandra Lewis S. Rose 1939-6-5 39203 Yuba Smartsville 182 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
  JEPS113395  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
  UC856821  Navarretia intertexta Lewis S. Rose 1940-5-28 40377 Yuba Browns Valley 60 Comment
  SJSU10209  Navarretia intertexta C. W. Sharsmith 1983-6-7 8790 Yuba Rose Ranch c. 4 mi NE of Strawberry Valley on the La Porte-Wuincy Rd; boundary Yuba & Sierra county 1432 Comment
  UCD48462  Navarretia intertexta Barbara Yungert 1974-5-14 150 Yuba SC-14 project area, Sierra Foothill Field Station, Yuba County, California. Comment
  UCD48463  Navarretia intertexta Beecher Crampton 1971-6-18 8735 Yuba Sierra Foothill Range Field Station. Ca. 6.5 miles E of Browns Valley. Comment
  UCD48464  Navarretia intertexta Barbara Yungert 1974-5-23 178 Yuba Along west side of Road 3, below F 1-13 project area near gate, Sierra Foothill Field Station, Yuba County, California. Comment
  CHSC84171  Navarretia intertexta subsp. intertexta Lowell Ahart 2003-7-6 10356 Yuba Near a meadow, east of the power line, about 30 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  CHSC97642  Navarretia intertexta subsp. intertexta Lowell Ahart 2007-5-12 13805 Yuba Bottom of a swale, about 100 feet northeast 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
  JEPS113398  Navarretia intertexta subsp. intertexta Lowell Ahart 2007-5-12 13805 Yuba Bottom of a swale, about 100 feet northeast 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
  UCD162514  Navarretia intertexta subsp. intertexta Steve Matson 2007-5-19 1713 Yuba nSNF; lower Sierra foothills westslope; about 1 mile south of Highway 20, off Smartville Rd. Smiling Dog Ranch. 268 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
  UC1283734  Navarretia leucocephala Beecher Crampton 1965-5-11 7325 Yuba 2.5 mi sw Browns Valley Comment
  UCD35858  Navarretia leucocephala Beecher Crampton 1965-5-11 7325 Yuba 2.5 miles southwest of Brown's Valley. Comment
  UCD37130  Navarretia leucocephala Beecher Crampton 1957-6-5 4115 Yuba 10 miles east of Marysville, along State Highway 20. Comment
  UCD48528  Navarretia leucocephala Beecher Crampton 1965-5-11 7325 Yuba 2.5 miles s.w. Brown's Valley. 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
  CHSC97449  Navarretia pubescens Lowell Ahart 2007-5-12 13807 Yuba Dry bare disturbed dark soil, about 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113399  Navarretia pubescens Lowell Ahart 2007-5-12 13807 Yuba Dry bare disturbed dark soil, about 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UCD37131  Navarretia pubescens Beecher Crampton 1957-6-5 4117 Yuba 10 miles east of Marysville, along State Highway 20. Comment
  UCR118894  Navarretia pubescens Beecher Crampton 1957-6-5 4131 Yuba Central Sierra Nevada foothills., 2.6 Miles northeast of Brown's Valley Post Office 366 Comment
  CAS-BOT-BC229014  Navarretia pubescens Beecher Crampton 1957-6-5 4131 Yuba 2.6 miles northeast of Brown's Valley P.O. Comment
  OBI11305  Navarretia pubescens Lewis S. Rose 1967-6-13 67126 Yuba Camp Far West Reservoir. 7 mi NE of Wheatland 122 Comment
  RSA122941  Navarretia pubescens H. S. Yates 1933-5-24 3641 Yuba Near Toland Ranch 122 Comment
  RSA189444  Navarretia pubescens L. S. Rose 1967-6-13 67126 Yuba Camp Far West Reservoir, 7 mi. NE of Wheatland 122 Comment
  SEINET208622  Navarretia pubescens Lewis S. Rose 1967-6-13 67126 Yuba Cam Far West Reservoir; 7 miles NE of Wheatland. 122 Comment
  UCD38716  Navarretia pubescens Beecher Crampton 1957-6-5 4131 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  UCD48620  Navarretia pubescens Beecher Crampton 1957-6-5 4131 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  UCD118209  Navarretia squarrosa G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12832 Yuba Northern Sierra Nevada Mountains: along Hwy CA-49, 0.5 mile south of Camptonville. 817 Comment
  UCD118213  Navarretia squarrosa G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12832 A Yuba Northern Sierra Nevada Mountains: along Hwy CA-49, 0.5 mile south of Camptonville. 817 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
  OBI11296  Navarretia tagetina Lewis S. Rose 1967-6-13 67124 Yuba 7 mi NE of Wheatland. 61 Comment
  RSA189450  Navarretia tagetina L. S. Rose 1967-6-13 67124 Yuba 7 mi. NE of Wheatland 61 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
  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
  RSA21293  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
  UCD120072  Nemophila heterophylla Barbara Yungert 1974-4-16 53 Yuba Koch Livestock Area, Sierra Foothill Field Station. Comment
  JEPS18181  Nemophila maculata Rimo Bacigalupi with G. T. Robbins and F. Chisaki 1956-4-19 5617 Yuba 1/2 mi n Dobbins Ranger Sta. (along road from Oregon House to Dobbins); n of Dobbins Ranger Sta. (Calif. State Dept of Forestry) 548 Comment
  UC794385  Nemophila maculata Lincoln Constance 1949-4-29 3279 Yuba 2 mi w Dobbins (Oregon House); w of Dobbins 457 Comment
  CHSC59548  Nemophila menziesii var. menziesii H. E. MacLennan 1992-4-5 13 Yuba 20 air miles se of Oroville. 472 Comment
  CDA29098  Nicotiana glauca M. Stelmok 2009-5-28 s.n. Yuba Vicinity of Marysville: at the Fremont Medical Center on 5th Street, near J street. 0 Comment
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Jan 17 2014
  CHSC111038  Notholithocarpus densiflorus L. P. Janeway; Tim Hanson 2013-10-24 11211 Yuba Northern High Sierra Nevada. Plumas national Forest; Challenge Experimental Forest; broad ridgeline between Challenge and Golden Gate Ravine, 1700 m north-northwest of Challenge. 817 Comment
  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
  UCD110187  Notholithocarpus densiflorus Kathleen Keliher 1975-4-30 77 Yuba Along Oregon Hill Road between Bullards Bar Reservoir and Challenge. Comment
  UCD110239  Notholithocarpus densiflorus Caroline B. Pratt 1977-9-27 s.n. Yuba Woodleaf, along Oroville-Wyandotte Canal. 914 Comment
  SJSU10226  Notholithocarpus densiflorus var. echinoides C. W. Sharsmith 1983-6-8 8807 Yuba near Slate Cr bridge crossing on Quincy-LaPorte Rd 1066 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
  UC844106  Odontostomum hartwegii Alice Eastwood 1921-5-22 10526 Yuba Los <Vergils> Comment
  SEINET3992117  Odontostomum hartwegii Unknown 1939-6-6 39224 Yuba 2 mi S. W. of Brownsville 594 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
  CHSC76110  Oenothera elata subsp. hirsutissima Lowell Ahart 1999-9-5 8194 Yuba On the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 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
  SJSU8387  Orobanche uniflora J. B. Willis Jr. 1969-4-27 Yuba by old stage rd to Timbuctoo, NW of Smartville, 0.25 mi from State Hwy 20 Comment
  CHSC84349  Oryza sativa Lowell Ahart 2003-9-22 10614 Yuba In a rice field, Shintaffer Farms, in the rice field east of the canal and the large Shintaffer Farms rice dryer, about 300 yards south of Woodruff lake, about 3 miles (air) northeast of Marysville. 40 Comment
  UCD37869  Oxalis corniculata Beecher Crampton 1962-4-24 6285 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
  CAS-BOT-BC316983  Packera layneae Lowell Ahart 1980-6-19 2409 Yuba 4 miles east of Challenge 900 Comment
  UC1728262  Packera layneae Al Franklin 1997-7-1 97138 Yuba on Ponderosa Way just n La Porte Rd.; Brownsville, Recreation Park Comment
  CHSC44564  Panicum acuminatum Lowell Ahart 1979-6-25 1949 Yuba North of the road, about 2 miles east of Challenge. 640 Comment
  SBBG115624  Panicum acuminatum B. Crampton 1964-10-22 7222 Yuba ca. 3 mi E of Browns Valley Comment
  SBBG26331  Panicum acuminatum B. Crampton 1966-6-14 Yuba 1 mi E of Brownsville 731 Comment
  CHSC78364  Panicum acuminatum var. acuminatum Lowell Ahart 2000-6-19 8492 Yuba In a meadow, 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
  CHSC112094  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. 625 Comment
  UCD32863  Panicum acuminatum var. fasciculatum Beecher Crampton 1964-10-22 7222 Yuba 3 miles east of Browns Valley, dry creek bed Comment
  UCD33106  Panicum acuminatum var. fasciculatum Beecher Crampton 1966-6-14 7745 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  UCD88528  Panicum acuminatum var. fasciculatum Beecher Crampton 1964-10-22 7222 Yuba 3 miles east of Brown's Valley, Dry Creek. Comment
  UCD88531  Panicum acuminatum var. fasciculatum Beecher Crampton 1966-6-14 7745 Yuba 1 mile east of Brownsville on La Porte road. 731 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
  JEPS113807  Panicum dichotomiflorum Lowell Ahart 2007-6-22 14219 Yuba Bottom of a new ditch, near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  SEINET10920908  Panicum dichotomiflorum Lowell Ahart 1999-9-5 Ahart 8198 Yuba T16N, R4E, Section not surveyed. On the disturbed area on the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 37 Comment
  JEPS95851  Panicum dichotomiflorum subsp. dichotomiflorum Lowell Ahart 1999-9-5 8198 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
  CDA6385  Parentucellia viscosa L. P. Janeway 2006-5-24 8635 Yuba Northern Sierra Nevada Foothills; Dougherty Hill Wildlife Area, Donovan Hill Unit; east of Los Verjeles Road 1.25 km north of Loma Rica Road. 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
  JEPS113394  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
  UCR231329  Parentucellia viscosa George K. Helmkamp, E. A. Helmkamp 2011-5-6 17199 Yuba East edge of Sacramento Valley, Camp Far West Road, 2.3 miles northwest of the junction at Camp Far West Reservoir, 5.3 miles NE (53 deg. ) of Wheatland 55 Comment
  CLARK-A1528-7707  Paspalum dilatatum John C. Roos 1939-7-3 1519 Yuba Comment
  UCR179305  Paspalum dilatatum George K. Helmkamp, E. A. Helmkamp 2006-10-10 11525 Yuba Northern Sierra Nevada Mountains Foothills, along Calif. Hwy 49 just north of the Nevada County line at the Middle Yuba River bridge 451 Comment
  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
  CHSC109347  Paxistima myrsinites Karen Callahan 2011-8-12 24 Yuba Near Pendola Road, Rd 3119, about 1 mile from Hwy. 49 intersection, NW of Camptonville. Close to bridge over confluence of Brandy Creek and Willow Creek. 792 Comment
  CHSC59309  Paxistima myrsinites L. P. Janeway; Jean Witzman, Robin Fallsheer 1992-4-15 4152 Yuba Southwest side of Slapjack Creek, 1 mi southeast of Woodleaf. On slope near the creek. 899 Comment
  CHSC69137  Paxistima myrsinites Lowell Ahart 1997-8-7 7832 Yuba On the west side of the dirt road, on the south side of Indian Creek, about 3 miles (air) east of Challenge. 762 Comment
  RSA516593  Pedicularis aurantiaca R. C. Bacigalupi, G. Thomas Robbins, Francia Chisaki 1956-4-19 5622 Yuba Between Dobbins and Bullard Bar Dam, watershed of North Fork of the Yuba River, 3.1 mi E of Dobbins (or 5.5 miles SW of Bullard Bar Dam). 784 Comment
  UCD123319  Pedicularis densiflora Kathleen Keliher 1975-4-24 68 Yuba near Marysville and Bald Mountain Roads, four miles east of Browns Valley. 91 Comment
  UCD123328  Pedicularis densiflora W. R. Powell 1968-5-24 1550 Yuba 1 1/4 miles south-southwest of Challenge. 755 Comment
  JEPS35371  Pellaea andromedifolia Mrs. Rust Yuba Pelton 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
  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
  UC1063277  Penstemon azureus var. angustissimus A. E. Wieslander 1935-6-19 320 Yuba 2 mi s Kentucky House; Smartsville Quad., s of Kentucky House 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
  SEINET3160435  Penstemon laetus subsp. laetus L. S. Rose 1939-6-7 39236 Yuba S Fork Feather River, 3 mi S of Pulsa 610 Comment
  SEINET11262157  Penstemon laetus var. leptosepalus Karl A. 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 Challange.; 0 732 Comment
  UC423489  Penstemon laetus var. leptosepalus David D. Keck 1930-7-25 982 Yuba Challenge Sierra Nevada, Challenge 731 Comment
  NY604494  Penstemon laetus var. leptosepalus L. S. Rose 1939-6-7 39236 Yuba South Fork Feather River, 3 miles south of Pulga 609.6 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
  POM190467  Penstemon laetus var. leptosepalus D. D. Keck 1932-7-1 1608 Yuba 1 mile SE of log Cabin Service Station, W of Camptonville. 610 Comment
  POM195082  Penstemon laetus var. leptosepalus D. D. Keck 1930-7-25 983 Yuba Bullards Bar Reservoir. 457 Comment
  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
  SEINET11262106  Penstemon neotericus George K. Helmkamp, E. A. Helmkamp 2007-5-26 12146 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, just north of the Nevada Co line, beside Oregon Creek and Oregon Creek campground. Camptonville 7.5' Q.; 0 430 Comment
  SEINET6626627  Pentagramma triangularis A. Tiehm 1975-1 649 Yuba U.C. Sierra Foothill Field Station 274 Comment
  UCD137770  Pentagramma triangularis Barbara Yungert 1974-4-16 51 Yuba Koch Livestock Area, Sierra Foothill Field Station. Comment
  JEPS107678  Pentagramma triangularis subsp. triangularis Lowell Ahart 2005-3-11 11601 Yuba On W side of large rock outcrop, just E of the poor dirt road, ca. 1/2 mi W of Marysville Rd, ca. 1/2 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/2 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 386 Comment
  CAS-BOT-BC211273  Perideridia bacigalupii Lowell Ahart 1980-8-12 2527 Yuba About 2 miles south-east of Woodleaf 800 Comment
  CHSC105607  Perideridia bacigalupii L. P. Janeway 2010-8-11 10138 Yuba Northern High Sierra Nevada. Plumas National Forest; near the head of Little Oregon Creek, along Peterson Ridge Road 1.4 road km southeast of Oregon Hill Road. Mostly along the north edge of the dirt road and just up the cutbank. 876 Comment
  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
  CHSC107426  Perideridia bacigalupii L. P. Janeway 2011-8-10 10644 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
  CHSC108169  Perideridia bacigalupii L. P. Janeway 2011-8-15 10646 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 1.9 air km south-southwest of Oregon Peak, 0.3 km north of Marysville Road. Southwest edge of meadow area, where seasonal drainage occurs and in sheetlfow parts of the meadow. 750 Comment
  CHSC69128  Perideridia bacigalupii Lowell Ahart 1997-8-7 7810 Yuba On the north side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  JEPS95151  Perideridia bacigalupii Lowell Ahart 1997-8-7 7810 Yuba about 3 air mi se of Challenge (on n side of the dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  CHSC105608  Perideridia kelloggii L. P. Janeway 2010-11-8 10139 Yuba Northern High Sierra Nevada. Plumas National Forest; under the power lines about 150 m northwest of Oregon Hill Road 2.2 road km north of Marysville Road; about half was between Oregon Peak and Summit Hill. Springtime seep. 832 Comment
  CHSC108149  Perideridia kelloggii L. P. Janeway 2011-8-15 10649 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
  UCD18440  Perideridia kelloggii Eric Knapp 2000-1 232 B Yuba Sierra Foothill Research and Extension Center, adjacent to moist seep, SW-facing slope in blue oak, interior live oak woodland. 373 Comment
  CHSC105609  Perideridia lemmonii L. P. Janeway 2010-11-8 10140 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
  CHSC108146  Perideridia lemmonii L. P. Janeway 2011-8-15 10647 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 1.9 air km south-southwest of Oregon Peak, 0.3 km north of Marysville Road. Southwest edge of meadow area, where seasonal drainage occurs and in sheetlfow parts of the meadow. 750 Comment
  JEPS95165  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
  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
  CAS-BOT-BC418857  Persicaria hydropiperoides Lowell Ahart 1977-8-31 s.n. Yuba 2 miles north-east of Marysville 30 Comment
  CHSC47472  Persicaria lapathifolia Lowell Ahart 1977-8-31 1558 Yuba Growing in shallow water in a rice field, on the Sam Shintaffer Farm, about 2 miles north-east of Marysville. 27 Comment
  JEPS124263  Persicaria maculosa Lowell Ahart 2015-11-19 20677 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. 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
  HSC17530  Persicaria maculosa C. B. Wolf 1927-11-5 1438 Yuba Road to Brown's Valley, 8 mi. from Marysville Comment
  CHSC116117  Persicaria punctata Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20640 Yuba On the bottom of the outflow area at the bottom of Lake Francis Dam, Lake Francis, about 1-1/2 miles south of Dobbins. 479 Comment
  JEPS124320  Persicaria punctata Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20640 Yuba Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  UCD99783  Persicaria punctata G. K. Helmkamp; E. A. Helmkamp 2006-10-10 11528 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
  CAS-BOT-BC419310  Persicaria punctata J. T. Howell; Gordon H. True 1969-6-24 5092 Yuba Vineyard Creek ca. 4 miles south of Smartville on Beale AFB Rd. 152 Comment
  UC1076251  Petrorhagia dubia Herbert L. Mason 1927-5-11 3735 Yuba flat w North San Juan; flat w of North San Juan Comment
  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
  UCD37858  Petrorhagia dubia Beecher Crampton 1962-4-24 6264 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  SEINET5337023  Petrorhagia dubia C. Aarstad 1979-4-28 s.n. Yuba At junction of Rt. 20 and north fork of Yuba in Browns Valley 183 Comment
  SEINET5337378  Petrorhagia dubia W. Short 1959-4-11 s.n. Yuba 5 miles west of Smartville, Calif. on California highway 20. 366 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
  UCSB50207  Petrorhagia dubia Gray, John 1976-4-10 Yuba Along roadside on Loma Rica Road; 4 miles south of Loma Rica 42 Comment
  CHSC68480  Phacelia cicutaria var. cicutaria Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7726 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
  CHSC90348  Phacelia cicutaria var. cicutaria Lowell Ahart 2005-3-11 11618 Yuba Rock outcrop, west of a large rock outcrop, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 393 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
  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
  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
  HSC10569  Phalaris aquatica T. F. Newman 1965-6-6 6512 Yuba Lone Tree Rd., 15 mi. NE of Marysville. Comment
  UCD88039  Phalaris aquatica Beecher Crampton 1971-6-18 8730 Yuba 5 miles E of Marysville, along State Hwy. 20. Comment
  CHSC97679  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
  RSA726958  Phalaris minor L. Ahart 2007-5-14 13843 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  UCD89371  Phalaris paradoxa Beecher Crampton 1957-6-5 4145 Yuba 1/2 mile W of Oregon House Post Office. Comment
  SEINET3131071  Philadelphus lewisii var. californicus L. S. Rose 1939-6-7 39237 Yuba N Fork of Feather River, 3 mi. S of Pulga 610 Comment
  JEPS71087  Phlox gracilis Willis L. Jepson 1892-4-9 15052 Yuba Smartsville Comment
  SBBG6056  Phlox speciosa H. and M. Dearing 1939-5-8 3296 Yuba near Camptonville Comment
  UCD118251  Phlox speciosa R. O. Hanes 1992-4-1 45 Yuba Plumas Forest. 731 Comment
  UCD118252  Phlox speciosa Kathleen Keliher 1975-5-30 118 Yuba Near New York Flat Road, just west of Forbestown. 822 Comment
  CHSC10810  Phlox speciosa subsp. occidentalis Lowell Ahart 1969-4-8 Yuba Near Dobbins. 365 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
  UC1186135  Phlox speciosa subsp. occidentalis Herbert L. Mason 1927-5-10 3729 Yuba near Dobbins Comment
  RSA12711  Phoradendron densum Carl B. Wolf, E. R. Johnson 1934-10-4 6158 Yuba N side of Indiana Creek, 1.7 miles W of Indiana Ranch. Sierra Foothills. 549 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
  UC177573  Phyla caespitosa H. M. Hall 1914-8-2 9833 Yuba near Marysville Comment
  CHSC69148  Physocarpus capitatus Lowell Ahart 1997-8-9 7839 Yuba Along a unnamed creek, about two miles (air) southeast of Woodleaf. 701 Comment
  JEPS94450  Physocarpus capitatus Lowell Ahart 1997-8-9 7839 Yuba along an unnamed creek about 2 air mi se of Woodleaf 701 Comment
  CHSC45919  Pickeringia montana Lowell Ahart 1976-5-27 1131 Yuba Near the edge of Ponderosa Way, near the Brownsville Dump, west of Brownsville. 609 Comment
  CHSC84164  Pickeringia montana var. montana Lowell Ahart 2003-6-29 10317 Yuba On the west side of Ponderosa Way, 100 yards north of the road to the dump, about 1 mile north of La Porte Road, about 1 mile (air) west of Brownsville. 684 Comment
  CAS-BOT-BC76954  Pilularia americana Lowell Ahart 1977-9-25 s.n. Yuba 2 miles northeast of Marysville, Sam Shintaffer Farm. 35 Comment
  CAS-BOT-BC79015  Pinus ponderosa Alice Eastwood 1918-4-7 6805 Yuba Camptonville Comment
  HSC1544  Pinus sabiniana R. A. Magie 1964-3-27 18 Yuba 15 mi. W of Grass Valley on Hwy. 20 Comment
  UCD135105  Pinus sabiniana Barbara Yungert 1974-6-5 192 Yuba Sierra Foothill Field Station. Comment
  UCD139003  Piperia elegans Kenneth Stewart 1964-6-26 s.n. Yuba 2 miles northeast of Challenge. Comment
  CAS-BOT-BC136610  Piperia michaelii Alice Eastwood 1921-5-22 10560 Yuba Field redacted by CAS, contact the data manager for more information Comment
  CHSC71406  Piperia transversa Lowell Ahart 1998-7-19 8051 Yuba On the north side of the dirt road, about 3/4 mile southeast of Woodleaf. 960 Comment
  JEPS125849  Piperia transversa Dean W. Taylor 2001-7-31 17850 Yuba Rock Creek canyon on the Yuba County side, ca 2 air miles SW of Union Hill. Comment
  UCR196983  Pisum sativum George K. Helmkamp, E. A. Helmkamp 2008-5-20 13468 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  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
  UCD37887  Plagiobothrys Beecher Crampton 1962-4-24 6313 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  SBBG33961  Plagiobothrys bracteatus L. S. Rose 1967-6-13 67128 Yuba Camp Far West Reservoir, 7 mi NE of Wheatland 121 Comment
  SJSU5649  Plagiobothrys bracteatus L. S. Rose 1967-6-13 67128 Yuba Camp Far West Reservoir 7 mi NE of Wheatland 121 Comment
  UCD120784  Plagiobothrys bracteatus Barbara Yungert 1974-5-7 127 Yuba Forbes Hill, F1-14 project area, Sierra Foothill Field Station. Comment
  CDA31977  Plagiobothrys fulvus L. 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. Comment
  JEPS113753  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
  SBBG121298  Plagiobothrys glyptocarpus L. Ahart 2007-4-17 13682 Yuba ca. 1/8 mi W of Marysville Rd and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 5.5 air mi NE of Loma Rica 292 Comment
  JEPS113166  Plagiobothrys glyptocarpus var. glyptocarpus Lowell Ahart 2007-4-17 13682 Yuba Along a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  CHSC97631  Plagiobothrys greenei Lowell Ahart 2007-5-12 13778 Yuba 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
  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
  SEINET7075552  Plagiobothrys greenei A. G. Vestal 1955-4-4 s.n. Yuba About 9 miles northeast of Marysville on Route 20. 39? deg. 13' 38" North Latitude, -121? deg. 24' 51" West Longitude. UTM Zone 10, 636890mE, 4342994mN. (NAD 27)]. [Coordinate Datum: WGS84/NAD83]. Comment
  CAS-BOT-BC228240  Plagiobothrys hispidulus Lowell Ahart 1980-8-12 2569 Yuba Along Slate Creek 1250 Comment
  UCD120935  Plagiobothrys nothofulvus Barbara Yungert 1974-4-4 2 Yuba Along four wheel drive road, north of Yuba River, Sierra Foothill Field Station. 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
  CDA40653  Plagiobothrys stipitatus var. micranthus L. Ahart 2002-6-3 9688 Yuba On the bottom of the pond spillway, second small man made pond, about 1/4 mile south of Long Ravine Road, about 1/8 mile east of the intersection of Camp Far West Road and Long Ravine Road there is a poor Texas gate on the south side of the road, north of Camp Far West Reservoir. Comment
  CHSC108200  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
  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
  CHSC97630  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2007-5-12 13779 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  HSC100755  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2011-6-7 17387 Yuba 150 yd. W of S end of Parks Bar Bridge (Hwy. 20), 15 (air) mi. NE of Marysville. 66 Comment
  JEPS123937  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2015-4-30 20132 Yuba About 1 1/4 mile (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. Comment
  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
  JEPS94324  Plagiobothrys tenellus Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7735 Yuba about 17 mi ne of Marysville ( along s side of Dry Creek, n of the poor dirt road, about 1 mi e of Scott Forbes Road (Long Bar Road)); Dry Creek 121 Comment
  JEPS113629  Plantago elongata Lowell Ahart 2007-5-12 13802 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UCSC008273  Plantago elongata Lowell Ahart 2007-5-12 13802 Yuba About 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC45085  Plantago erecta Barbara Yungert 1973-5-3 109 Yuba West of road near cattle guard and U. C. sign, west of station, Sierra Foothill Field Station. Comment
  CHSC97478  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
  UCD124500  Plantago erecta Barbara Yungert 1973-5-3 109 Yuba west of road near cattle guard and U.C. sign, west of station, Sierra Foothill Field Station. Comment
  CHSC96871  Plantago lanceolata Lowell Ahart 2007-6-30 14231 Yuba Near a new ditch, near and east of a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC97493  Plantago lanceolata Lowell Ahart 2007-5-14 13867 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
  RSA726804  Plantago lanceolata L. Ahart 2007-6-30 14231 Yuba Near a new ditch, near and east of a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  CHSC106054  Platanthera leucostachys Lowell Ahart 2010-7-27 16918 Yuba Along small streams in the meadow, on the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. 1219 Comment
  JEPS117430  Platanthera leucostachys Lowell Ahart 2010-7-27 16918 Yuba Along small streams in the meadow, on the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam 1219 Comment
  JEPS95419  Platanthera leucostachys Lowell Ahart 1994-6-27 7390 Yuba 4 mi NE of Strawberry Valley (near the SE side of Schwartz Meadow, on the E side of La Porte Road) 1219 Comment
  UCD35774  Platanus racemosa Beecher Crampton 1962-4-24 6287 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UC912454  Plectritis ciliosa subsp. ciliosa Herbert L. Mason 1927-5-11 3731 Yuba near Dobbins 457 Comment
  CHSC97484  Poa annua Lowell Ahart 2007-5-12 13826 Yuba Along the dirt road and about 20 yards northwest of the gate, about 20 yards south of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  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
  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-BC255963  Poa pratensis Lowell Ahart 1979-6-3 s.n. Yuba 1 mi. S of Challenge 700 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
  UCD92142  Poa secunda subsp. secunda Barbara Yungert 1974-5-6 G- 4 Yuba Sierra Foothill Field Station. South of wire gate, Kock Livestock project area. Comment
  UCD92100  Poa trivialis Beecher Crampton 1966-6-14 7756 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  UCR168804  Pogogyne ziziphoroides David Charlton 2005-5-16 8027 B Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  JEPS113624  Pogogyne zizyphoroides Lowell Ahart 2007-5-12 13797 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
  CDA14566  Polygala cornuta G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3044 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  CHSC43322  Polygala cornuta Lowell Ahart 1977-7-31 1506 Yuba On the banks of a stream, about 1 mile south of Challenge. 640 Comment
  CAS-BOT-BC170372  Polygala cornuta var. cornuta Rimo Bacigalupi 1927-7-2 1588 Yuba 1 mile west of Camptonville Comment
  CAS-BOT-BC170374  Polygala cornuta var. cornuta Clarence R. Quick 1965-7-28 65 -22 Yuba Ca. 1.5 miles south of North Star on Peterson Ridge, off LaPorte Road, NE of Challenge - Sierra Nevada Comment
  CAS-BOT-BC170376  Polygala cornuta var. cornuta Lowell Ahart 1977-7-31 156 Yuba About one mile south of Challenge 700 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
  UCD77943  Polygonum californicum Robert E. Preston 2001-7-30 1754 Yuba Beale Air Force Base, in open area at north end of taxiways. 39 Comment
  CHSC45951  Polygonum douglasii subsp. douglasii Lowell Ahart 1980-8-12 2540 Yuba Growing on a large gravel bar that is formed from a debris dam across Slate Creek, a little below where Gold Run Creek flows into Slate Creek, above Oniion Creek, about 7 miles south of La Porte. 1158 Comment
  CDA19038  Polygonum lapathifolium Schwall, Johnson 2000-10-16 PDR 007596 Yuba Sacramento Valley; At Greenhead Land Co., North Butte Rd., Live Oak. 0 Comment
  CHSC45470  Polygonum parryi Lowell Ahart 1980-8-12 2541 Yuba Growing on a large gravel bar that is formed from a debris dam across Slate Creek, a little below where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  CHSC73978  Polygonum parryi B. Castro; Gail Kuenster 1994-9-30 553 Yuba Ca. 4.5 air mi due E of Strawberry Valley, in old Road's End 2 gold mine site at end of USFS Rd 20N12. 1170 Comment
  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
  JEPS95856  Polygonum punctatum Lowell Ahart 1999-9-17 8243 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-BC232956  Polypogon australis Peter Rubtzoff 1972-4-4 6725 Yuba UC Sierra Foothill Range Field Station, N of Smartville Comment
  CAS-BOT-BC233032  Polypogon interruptus Lowell Ahart 1979-6-25 s.n. Yuba 2 miles E of Challenge 700 Comment
  UCD149780  Polypogon interruptus William Anderson 1965-6-19 s.n. Yuba Between Rackerby and Challenge. 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
  UCD91288  Polypogon monspeliensis Beecher Crampton 1957-6-5 4111 Yuba Along State Hwy. 20, 5 miles east of Marysville. 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
  UCD136497  Polystichum imbricans subsp. curtum G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12824 Yuba Northern Sierra Nevada Mountains: Mountain House Road 0.6 miles west of the Sierra Co. line; Sleighville area beside Willow Creek. 1021 Comment
  UCR191111  Polystichum imbricans subsp. curtum George K. Helmkamp, E. A. Helmkamp 2007-8-29 12824 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
  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
  JEPS115071  Polystichum munitum Lowell Ahart 2007-11-1 14530 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
  JEPS94912  Polystichum munitum Lowell Ahart 1997-8-7 7830 Yuba about 3 air mi e Challenge (s side of creek, w side of dirt road); Indian Creek 762 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
  JEPS113687  Potamogeton natans Lowell Ahart 2007-8-7 14413 Yuba Hampshire Creek Meadow, about 5 yards west of the dirt road, about 1 mile (air) east of Clipper Mills. In shallow water, on the east side of a small pond, on the west side of the dirt road 1021 Comment
  CAS-BOT-BC453843  Potamogeton nodosus W. V. Middlekauff 1960-6-19 s.n. Yuba 3 miles n.w. of Rio Oso Post Office Comment
  CDA18833  Potamogeton pusillus R. Breckenridge, Morse 1999-7-22 PDR 958961 A Yuba Lake Pillsbury, Upper Lake. 0 Comment
  CHSC82364  Potamogeton pusillus var. pusillus Lowell Ahart 2002-6-3 9687 Yuba Man made pond, about 1/4 mile south of Long Ravine Road, about 1/8 mile east of the intersection of Camp Far West Road and Long Ravine Road there is a poor Texas gate on the south side of the road, north of Camp Far West Reservoir. 106 Comment
  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
  JEPS95373  Potentilla gracilis var. fastigiata Lowell Ahart 1994-6-27 7382 Yuba 4 mi NE of Strawberry Valley (E of the logging road E of Schwartz Meadow, E side of La Porte Road) 1219 Comment
  CAS-BOT-BC154618  Prunus subcordata Alice Eastwood 1930-4-12 17929 Yuba Near summit of Texas hill 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
  JEPS118090  Pseudognaphalium luteoalbum Lowell Ahart 2011-6-7 17376 Yuba West of a willow shrub, Just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 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
  CAS-BOT-BC80098  Pseudotsuga menziesii Alice Eastwood 1918-4-7 6806 Yuba Camptonville Comment
  UCD135124  Pseudotsuga menziesii var. menziesii Kathleen Keliher 1975-5-6 91 Yuba Ca. 30 meters from La Porte Road on Forbestown Road, 1 mile east of Woodleaf. 929 Comment
  SEINET7072978  Psilocarphus brevissimus 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
  UCR168802  Psilocarphus brevissimus David Charlton 2005-5-16 8026 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
  UCR258551  Psilocarphus brevissimus var. brevissimus George K. Helmkamp, Amy Barnes 2013-3-28 20257 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  CDA34542  Psilocarphus oregonus L. 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. Comment
  CAS-BOT-BC361867  Psilocarphus oregonus John Thomas Howell; Gordon H. True 1971-5-26 47609 Yuba About 8 miles east of Marysville 30 Comment
  CAS-BOT-BC361914  Psilocarphus 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
  CHSC73409  Psilocarphus tenellus var. tenellus B. Castro; L. Gehrung 1995-8-9 601 Yuba Fish Meadow. Ca 5 air mi NE of Strawberry Valley, and ca 1.5 mi E of Slate Ck. In meadow on unnamed stream flowing S into Canyon Ck, ca 500 ft W of USFS Rd 20N35 via unnamed dirt rd. 1249 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
  CAS-BOT-BC72537  Pteridium aquilinum John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54077 Yuba About 2 miles northeast of Dobbins on Oregon Hill Road in Transition Zone Forest 701 Comment
  CHSC43544  Pteridium aquilinum var. pubescens Lowell Ahart 1979-6-3 1923 Yuba About 1 mile south of Challenge. 670 Comment
  JEPS115069  Pteridium aquilinum var. pubescens Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14500 Yuba Hampshire Creek Meadow, about 80 yards E of the dirt rosd, about 1 mi (air) E of Clipper Mills 1015 Comment
  UCR196996  Pteridium aquilinum var. pubescens George K. Helmkamp, E. A. Helmkamp 2008-5-20 13488 Yuba Foothills, northern Sierra Nevada Mountains, Camptonville, at the junction of Henness Pass Road and CA-49 823 Comment
  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
  CAS-BOT-BC105017  Quercus X morehus C. R. Quick 1947-10-2 47 -85 Yuba 8.3 mi NE of Brown's Valley (General Store) Comment
  UCD47014  Quercus X morehus H. H. Keifer 1953-10-11 s.n. Yuba Tree at lake near Dobbins, Yuba County, California. Comment
  UCD47042  Quercus X morehus Kathleen Keliher 1975-5-31 127 Yuba Along Scotts-Forbes Road, SC-15 project area, Sierra Foorhill Field Station, Yuba County, California. Comment
  UC1135527  Quercus berberidifolia M. A. Elvin 1933-7-7 34 Yuba 1.5 mi s Virginia Ranch; Smartsville Quad. 457 Comment
  UCD82665  Quercus chrysolepis Rodney Gale Myatt 1972-1 1484 -8 Yuba Lake Francis. Lower edge of small creek (dry in summer), which empties into a small, damned basin. 550 Comment
  UCD82669  Quercus chrysolepis Rodney Gale Myatt 1973-7-1 1592 -9 Yuba Bullard's Bar Dam. 550 Comment
  CAS-BOT-BC86014  Quercus douglasii Carl B. Wolf 1930-10-12 1737 Yuba along Yuba River near Hammonton 152 Comment
  CAS-BOT-BC86015  Quercus douglasii Carl B. Wolf 1930-10-12 1737 Yuba along Yuba River near Hammonton 152 Comment
  SBBG29998  Quercus douglasii C. B. Wolf 1930-10-12 1739 Yuba Yuba River on the Browns Valley-Smartsville Rd 152 Comment
  JEPS88904  Quercus durata Lowell Ahart 1994-6-5 7306 Yuba about 3 (air) mi e Forbestown (on the n side of Forbestown road, on the n side of Costa Creek); Costa Creek, Forbestown road 853 Comment
  SEINET10937811  Quercus durata Mary Susan Taylor, L. Hanson Taylor 3466 Yuba T19N R7E se section 7; Clipper Mills quad. N side of Forbestown-Woodleaf Rd, ca. 3/4 mi E of its jct with Forbestown Rd, ca. 2 mi W of Woodleaf. Open reddish weathered serpentine area; 2800 ft. 853 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
  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
  UCD80342  Quercus garryana var. breweri CNPS SN Foothill Team 2005-6-1 SNNR 0128 Yuba BLM, Ponderosa Landfill. 670 Comment
  CDA22096  Quercus kelloggii H. H. Keifer 1953-10-11 Yuba Lake northeast of Dobbins. 0 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
  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
  CDA20045  Quercus lobata P. Akers 2002-9-19 StB- 079 Yuba Sacramento Valley; E of Marysville on Smartville & Beale AFB Rd, 0.1 mi S of Waldo Rd. 94 Comment
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Jun 12 2008
  CAS-BOT-BC94996  Quercus wislizeni R. C. Wenk 2008-7-18 978 Yuba 5 mi. from Highway 20 going east from Marysville, along Peoria and Scott Forbes Roads 204 Comment
  UCD37875  Quercus wislizeni Beecher Crampton 1962-4-24 6295 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  JEPS107434  Quercus wislizeni var. wislizeni Lowell Ahart 2005-3-11 11621 Yuba On E side of the poor dirt road, ca. 1/2 mi W of Marysville Rd, ca. 1/4 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/4 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 344 Comment
  CAS-BOT-BC379185  Ranunculus aquatilis var. aquatilis Gordon H. True 1965-3-25 1776 Yuba Rock Creek at old McCourtney Rd. crossing, Nevada Co., and 14 mi E of Wheatland (Yuba Co.) 152 Comment
  CHSC45395  Ranunculus aquatilis var. capillaceus Lowell Ahart 1978-4-14 1638 Yuba On the bottom of a rice field, west of Kimball Lane, on the Sam Shintaffer Farm, about 2 miles north-east of Marysville. 30 Comment
  UCD95785  Ranunculus arvensis Beecher Crampton 1957-6-5 4127 Yuba 2.6 miles northeast of Brown's Valley Post Office. Comment
  CAS-BOT-BC378927  Ranunculus bonariensis James R. Shevock; Bob Holland 1985-5-6 11127 Yuba Sacramento Valley, Beale Air Force Base east of Marysville 00000000000000000000000000000 400 Comment
  RSA0019380  Ranunculus bonariensis var. trisepalus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17205 Yuba junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 ) of Wheatland. 56 Comment
  UCR231323  Ranunculus bonariensis var. trisepalus George K. 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 (47 deg. ) of Wheatland 56 Comment
  UCR244519  Ranunculus bonariensis var. trisepalus J. R. Shevock, Robert F. Holland 1985-5-6 11127 Yuba Sacramento Valley, Beale Air Force Base east of Marysville 40 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
  UCD81501  Ranunculus californicus Christopher Michael Bronny 2009-4-1 13 Yuba Oat Hills' area of Sierra Nevada foothills. 213 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
  SBBG2245  Ranunculus canus var. canus H. and M. Dearing 1939-5-7 3291 Yuba near Brownsville Comment
  JEPS113622  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
  SEINET7042654  Ranunculus occidentalis A. G. Vestal 1963-5-30 s.n. Yuba A meadow 3.9 miles south of Brownsville. Rackerby quadrangle UTM Zone 10, 641137mE, 4361952mN. Comment
  UCD96791  Ranunculus occidentalis R. O. Hanes 1992-4-6 47 Yuba Plumas Forest. 731 Comment
  CHSC97654  Ranunculus pusillus Lowell Ahart 2007-5-12 13813 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
  CHSC42048  Reseda luteola Lowell Ahart 1986-5-14 5274 Yuba Along Scott Grant Road, about 1 mile south-east of Loma rica road, about 4 miles east of Loma Rica. 152 Comment
  CHSC33754  Rhamnus crocea M. S. Taylor; L. Hanson 1981-4-15 3538 Yuba S side of rd 19N44, in Golden Gate Ravine, ca. 1.5 mi sw of Woodleaf. 853 Comment
  UC1311875  Rhamnus ilicifolia B. F. Smith 1965-7-20 57 Yuba 670 Comment
  UC592763  Rhamnus ilicifolia unknown 1927-11-6 1449 Yuba Browns Valley to Smartsville road (along left bank of Yuba River, near bridge); Yuba River 152 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
  CHSC43531  Rhododendron occidentale Lowell Ahart 1979-6-25 1956 Yuba Near the dirt road, about 2 miles east of Challenge. 640 Comment
  CAS-BOT-BC199743  Rhododendron occidentale var. paludosum Lloyd W. Swift 1932-5-9 64 Yuba Plumas National Forest. S. of Challenge 762 Comment
  UC1130561  Rhus trilobata M. A. Elvin 1933-8-7 45 Yuba 2 mi n Oregon House 457 Comment
  CHSC83428  Rhynchospora capitellata Virginia Dains 1996-7-30 Yuba South of forest road 20N25 in a meadow. 1097 Comment
  UCD102460  Ribes roezlii Kathleen Keliher 1975-5-6 87 Yuba Along Forbestown Road, 100 feet from La Porte Road, 1 mile east of Woodleaf. 929 Comment
  SEINET13942762 Image available Ribes roezlii Alice Eastwood 2018-4-7 6796 Yuba Camptonville Comment
  CHSC107912  Robinia pseudoacacia L. P. Janeway 2011-9-15 10726 Yuba Northern High Sierra Nevada. Plumas National Forest; at the blocked eastern end of the eastern extension of Fountain House Road, 3.1 road km east of Oregon Hill Road; 4.3 air km southeast of Pile County Peak. 735 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
  JEPS103275  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2002-6-3 9690 Yuba On the bottom of the pond spillway, second small man made pond, about 1/4 mile south of Long Ravine Road, about 1/8 mile east of the intersection of Camp Far West Road and Long Ravine Road, north of Camp Far West Reservoir. 102 Comment
  JEPS115008  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2007-11-8 14588 Yuba North of the waterway between the headland and the large island, on the strand of Camp Far West Reservoir, about 1/4 mile south of Rock Creek, about 1/2 mile north of Bear River, about 6 miles (air) northeast of Sheridan 73 Comment
  JEPS110504  Rorippa curvisiliqua var. occidentalis Robert E. Preston 1997-10-29 1057 Yuba Beale Air Force Base, E of Golf Course. 39 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
  JEPS102590  Rorippa curvisiliqua var. orientalis Lowell Ahart 2001-11-2 9397 Yuba Camp Far West Reservoir, about 1/4 mile NE of the dam, about 9 miles (air) SE of Wheatland. 83 Comment
  JEPS115009  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-BC7106  Rosa bridgesii Lester Rowntree 1941-5-14 s.n. Yuba On road bewteen Dobbin & Camplonville Comment
  CHSC113651  Rosa bridgesii L. P. Janeway 2014-5-20 11256 A Yuba Northern High Sierra Nevada. Plumas National Forest; 1.9 air-km southeast of Pike County Peak, 4.1 air-km southeast of Challenge; near Road 29N38. 928 Comment
  CHSC113652  Rosa bridgesii L. P. Janeway 2014-5-20 11256 B Yuba Northern High Sierra Nevada. Plumas National Forest; 1.9 air-km southeast of Pike County Peak, 4.1 air-km southeast of Challenge; near Road 29N38. 928 Comment
  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
  CHSC118508  Rosa bridgesii L. P. Janeway 2016-5-11 11962 Yuba Northern High Sierra Nevada. Plumas National Forest; near head of eastern tributary of Indian Creek; west side of Road 19N53 0.4 road-km south of Road 29N13. 920 Comment
  CHSC80967  Rosa bridgesii Lowell Ahart 2001-8-2 9052 Yuba On the south edge of the dirt road, Peterson Ridge Road, about 2 miles northeast of Oregon Hill Road, about 3 miles (air) southeast of Challenge. 701 Comment
  CHSC84149  Rosa bridgesii Lowell Ahart 2003-7-2 10342 Yuba About 200 yards south of the 4-H Camp, on the west side of Oregon Hill Road, about 1/2 mile north of Marysville Road, about 2 miles (air) northeast of Dobbins. 815 Comment
  CHSC84989  Rosa bridgesii Lowell Ahart 2003-10-11 10627 Yuba On both sides of the paved road to Scales, about 1 mile south of La Porte Road, about 1 1/2 miles (air) south of Sly Creek, about 1 1/2 miles northeast of Strawberry Valley. 1219 Comment
  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
  CDA14567  Rosa canina G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3045 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  CHSC110458  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. 815 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
  UC1776779  Rosa canina G. Douglas Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3045 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. J. T. Howell #54079 701 Comment
  CHSC80968  Rosa gymnocarpa Lowell Ahart 2001-8-2 9051 Yuba On the south edge of the dirt road, Peterson Ridge Road, about 2 miles northeast of Oregon Hill Road, about 3 miles (air) southeast of Challenge. 701 Comment
  CHSC84991  Rosa gymnocarpa Lowell Ahart 2003-10-11 10628 Yuba On both sides of the paved road to Scales, about 1 mile south of La Porte Road, about 1 1/2 miles (air) south of Sly Creek, about 1 1/2 miles northeast of Strawberry Valley. 1219 Comment
  JEPS102388  Rosa gymnocarpa Lowell Ahart 2001-8-2 9051 Yuba On the south edge of the dirt road, Peterson Ridge Road, about 2 miles NE of Oregon Hill Road, about 3 miles (air) SE of Challenge. 701 Comment
  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
  SJSU10220  Rosa gymnocarpa C. W. Sharsmith 1983-6-8 8801 Yuba Oak Flat Rd near Union Hill 1371 Comment
  JEPS104091  Rosa pisocarpa Lowell Ahart 2003-10-11 10623 Yuba On the w margins of a meadow, on the e side of a gravel road to the Rose Ranch, ca 100 yd w of the paved road to Scales, ca 1/2 mi south of the Rose Ranch, ca 5 mi (air) ne of Strawberry Valley, ca 7 mi (air) sw of La Porte. 1219 Comment
  CHSC84990  Rosa pisocarpa subsp. ahartii Lowell Ahart 2003-10-11 10623 Yuba On the west margins of 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
  CAS-BOT-BC146875  Rosa rubiginosa H. K. Wagnon; T. C. Fuller 1964-5-18 11987 Yuba N. of Hwy 20 to Grass Valley, 0.8 mi. e. of Smartsville Comment
  CAS-BOT-BC148112  Rosa rubiginosa John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54087 Yuba 3.6 miles northeast of Strawberry Valley on La Porte-Quincy Road - Sierra Nevada 1280 Comment
  CHSC115894  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. 853 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
  CHSC47445  Rotala indica Lowell Ahart 1977-10-3 1595 Yuba Growing on the bottom of a deep irrigation ditch, Sam Shintaffer Farm, about 2 miles north-east of Marysville. 30 Comment
  SD130473  Rotala indica Lowell Ahart 1977-8-31 Yuba 2.0 miles northeast of Marysville; Sam Shintaffer Farm. 29 Comment
  SFV8306  Rotala indica J. F. Williams 1974-10-8 s. n. Yuba Sacramento Valley Rice field (Henry Taylor grower) on Tanabe Road, northeast of Marysville. 25 Comment
  CHSC76284  Rotala ramosior Lowell Ahart 1999-9-17 8246 Yuba On the margins of a rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  SEINET13710396  Rotala ramosior Lowell William Ahart, Lowell William Ahart 1999-1 8246 Yuba 5 Air Mi NE Marysville Comment
  UCD17692  Rubus armeniacus H. Olmo; T. S. Mallah 1953-4-8 53 90 Yuba California. Yuba County: along Highway 28 in Smartville. Comment
  JEPS118292  Rubus discolor Lowell Ahart 2011-6-7 17410 Yuba Along the edge of the dirt road, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  JEPS113573  Rubus laciniatus Lowell Ahart 2007-8-7 14409 Yuba Hampshire Creek Meadow, about 20 yards east of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  JEPS94625  Rubus laciniatus Lowell Ahart 1997-8-7 7815 Yuba Peterson Ridge Rd. about 3 air mi se Challenge (w side of dirt road, on bottom of small stream, a branch of Little Oregon Creek) 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
  UCD113996  Rubus ursinus Beecher Crampton 1972-6-20 8818 Yuba Yuba County, ca. 2 miles west of Sicard Flat. Comment
  UCD17924  Rubus ursinus H. Olmo; T. S. Mallah 1953-3-24 53 27 B Yuba California. Yuba County: Highway 28 in Smartville. Growing 50 yards east of bridge on creek bank. Comment
  UCD17935  Rubus ursinus H. Olmo; T. S. Mallah 1953-3-24 53 27 B Yuba California. Yuba County: Highway 28 in Smartville. Growing 50 yards east of bridge on creek bank. Comment
  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
  UCR197046  Rumex acetosella George K. Helmkamp, E. A. Helmkamp 2008-5-20 13470 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  CHSC108189  Rumex crispus Lowell Ahart 2011-6-7 17408 Yuba East of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCR206955  Rumex crispus George K. Helmkamp, E. A. Helmkamp 2009-5-28 14827 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 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
  JEPS95858  Sagittaria latifolia var. obtusa Lowell Ahart 1999-9-17 8259 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
  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
  CAS-BOT-BC103040  Salix bonplandiana Alice Eastwood 1913-7-3 3413 Yuba Bear River, [Mc Courtneys] McCourtneys Bridge 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
  UCD80751  Salix exigua CNPS SN Foothill Team 2005-3-16 SNFN 0017 b Yuba CDFG, Spenceville Wildlife Area. From CA Highway 20, turn right on Smartville Road then left on Waldo Road, approximately 3/4 mile from Waldo Junction, located on south bank of Dry Creek, located in CDFG Spenceville Wildlife Area. 187 Comment
  CAS-BOT-BC104032  Salix gooddingii C. Hart Merriam 1906-9-1 s.n. Yuba Mouth of the Yuba River, Marysville Comment
  CAS-BOT-BC104034  Salix gooddingii Saichi Kawahara 1968-4-13 289 Yuba Park's Bar, north bank of the Yuba River at highway 20 91 Comment
  CHSC112197  Salix laevigata Lowell Ahart 2013-4-23 18565 Yuba Mined area along Costa Creek, about 100 yards east of where the paved road crosses Costa Creek, about 2 1/2 miles (air) southeast of the Forbestown store. 851 Comment
  CHSC108866  Salix lasiolepis Lowell Ahart 2012-2-28 17758 Yuba On the north side of Fruitland Road, about 1/2 mile east of Ramirez Road, about 13 miles northeast of Marysville. 32 Comment
  HSC104032  Salix lasiolepis L. Ahart 2012-2-28 17758 Yuba About 13 mi. NE of Mareysville; ~ 0.5 mi. E of Ramirez Rd., on the north side of Fruitland Road. 32 Comment
  JEPS119969  Salix lasiolepis Lowell Ahart 2012-2-28 17757 Yuba About 1/2 mile east of Ramirez Road, about 13 miles northeast of Marysville. Comment
  JEPS122454  Salix lasiolepis L. P. Janeway 2014-6-26 11424 Yuba Northern High Sierra Nevada. Plumas National Forest; small ephemeral meadow on a flattish bench at head of ephemeral northeastern tributary to Little Oregon Creek; 1.9 air km south-southeast of Pike County Peak; 0.24 km northeast of Oregon Hill Road, 0.15 km south of Peterson Ridge Road. Quad: Challenge 7.5'. Comment
  SBBG126080  Salix lasiolepis L. Ahart 2012-2-28 17757 Yuba N side of Fruitland Rd, ca 0.5 mi E of Ramirez Rd, ca 13 mi NE of Marysville 32 Comment
  CAS-BOT-BC107372  Salix lasiolepis var. lasiolepis A. A. Heller 1905-3-21 7559 Yuba Marysville Comment
  CHSC98985  Salix lasiolepis var. lasiolepis Lowell Ahart 2008-5-14 14763 Yuba On the south side of Costa Creek, about 200 yards east of Forbestown Road, about 3 miles (air) east of Forbestown. 837 Comment
  RSA754941  Salix lasiolepis var. lasiolepis L. Ahart 2008-5-14 14763 Yuba South side of Costa Creek, about 200 yards east of Forbestown Road, about 3 air miles east of Forbestown. 838 Comment
  UC1134923  Salix melanopsis M. A. Elvin 1933-7-1 32 Yuba Virginia Ranch Smartsville Quad. 457 Comment
  UCD162402  Salpichroa origanifolia Lemuel Osborne Jr. 1956-10-17 s.n. Yuba south of Marysville near the Feather River. Comment
  CDA20939  Salsola ryanii P. Akers 2002-9-19 RT- 10 -2 Yuba Sacramento Valley; Smartville Rd., 0.3 mi. N of Daugherty. 30 Comment
  CDA21016  Salsola tragus P. Akers 2002-9-19 RT- 008 -1 Yuba Sacramento Valley; NE corner of Hwy 65 and Rancho Rd., 3 mi. NW of Wheatland. 12 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
  UCD112043  Salvia sonomensis Christopher Mallek 2008-5-5 IC3- 15 Yuba Indiana Creek. 617 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
  CDA7196  Sanguisorba minor subsp. muricata L. P. Janeway 2006-5-24 8634 Yuba Northern Sierra Nevada Foothills; South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. Comment
  SD236401  Sanguisorba minor subsp. muricata G. K. Helmkamp, E. A. Helmkamp 2008-5-20 13489 Yuba Foothills, northern Sierra Nevada Mountains: Camptonville, at the junction of Henness Pass Road and CA-49. 822 Comment
  SEINET1908443  Sanguisorba minor subsp. muricata G. K. Helmkamp, E. A. Helmkamp 2008-1 13489 Yuba Foothills, northern Sierra Nevada Mountains: Camptonville, at the junction of Henness Pass Road and CA-49 823 Comment
  UC861892  Sanguisorba minor subsp. muricata Lewis S. Rose 1940-5-28 40388 Yuba Browns Valley 60 Comment
  UCD37874  Sanicula Beecher Crampton 1962-4-24 6294 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. 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
  UC566861  Sanicula bipinnatifida H. L. Mason 1927-5-11 3733 Yuba vicinity of Dobbins 457 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
  CHSC63236  Sanicula tuberosa Lowell Ahart 1994-6-5 7302 Yuba On the south side of Costa Creek, on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  JEPS88900  Sanicula tuberosa Lowell Ahart 1994-6-5 7302 Yuba about 3 air mi e Forbestown (on s side of Costa Creek, on e side of Forbestown Road); s side of Costa Creek 853 Comment
  JEPS88901  Sanicula tuberosa Lowell Ahart 1994-6-5 7302 Yuba about 3 air mi e Forbestown (on s side of Costa Creek, on e side of Forbestown Road); Costa Creek, Forbestown Road 853 Comment
  JEPS100351  Saponaria officinalis Dean W. Taylor 2001-6-21 17810 Yuba canyon of the North Fork Yuba River, near the confluence of Canyon Creek at Kelly Bar 609 Comment
  CHSC68467  Scandix pecten-veneris Lowell Ahart 1997-4-6 7716 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
  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
  CHSC83049  Sceptridium multifidum Lowell Ahart 2002-10-9 9964 Yuba East of a small stream, at the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1075 Comment
  UCSB63990  Schoenoplectus acutus var. occidentalis Janeway, L. 1997-6-26 Yuba Yuba City quad.: T16N, R4E, NW1/4 of SE1/4 of sec. 29; south side of Woodruff Lane; 0.1 mi. west of Mathews Lane; about 4 1/2 mi. north-northeast of Marysville 23 Comment
  CHSC76306  Schoenoplectus mucronatus Lowell Ahart 1999-9-17 8249 Yuba Sam Shintaffer Farm, south of Woodruff Lane, south of Mathews Road, 100 yards south of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  UC683301  Scirpus acutus var. occidentalis Alan A. Beetle 1941-6-26 2732 Yuba on rte 99E 10 mi n Lincon [sic] (Lincoln?); n of Lincon [sic] (Lincoln ?) 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
  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
  JEPS104222  Scirpus setaceus Lowell Ahart 2003-7-2 10348 Yuba In a small stream, on the e side of Fountain Hill Rd, ca 3 mi south of Oregon Hill Rd, ca 1/2 mi (air) n of Fountain House Hill, ca 3 mi (air) ne of Dobbins. 841 Comment
  SEINET13710634  Scirpus setaceus Lowell William Ahart, Lowell William Ahart 2003-1 10363 Yuba 5 Air Mi. N Od Dobbins (39 Deg 26'11.7"N, 121 Deg 12'07.3"W) 2746 Ft. 837 Comment
  CAS-BOT-BC243534  Scribneria bolanderi Carl B. Wolf 1937-5-12 8629 Yuba 4 mi. NE of Wheatland on road to Grass Valley, Sacramento Valley 60 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
  SEINET10602614  Scribneria bolanderi Carl B. Wolf 1937-5-12 Wolfe 8629 Yuba Upper Sonoran; -Grasses. Habitat: Sun, Rocky red Clay, Open fields, Plant type: Annual. Sacramento Valley, 4 mi. NE. of Wheatland on Road to Grass Valley. 61 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
  CHSC93074  Scutellaria californica L. P. Janeway 1994-7-1 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. 1005 Comment
  UCD125508  Scutellaria californica Beecher Crampton 1971-6-18 8739 Yuba Sierra Foothill Range Field Station. Ca. 6 miles east of Browns Valley. Comment
  HSC99328  Scutellaria californica C. B. Wolf 1927-11-5 1441 Yuba Road to Brown's Valley, 8 mi. from Marysville 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
  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
  JEPS107677  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
  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
  UC473558  Senecio integerrimus var. major L. S. Rose 1931-4-13 Yuba Woodleaf Comment
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Mar 30 2016
  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
  UC1557896  Sericocarpus oregonensis subsp. californicus J. Semple and S. Heard 1986-8-13 8413 Yuba near, 1.3 km w of New York Flat Rd. Brownsville (La Porte Rd., (Yuba E21)) Comment
  JEPS113868  Setaria parviflora 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
  CAS-BOT-BC243656  Setaria pumila Roxana S. Ferris 1927-11-5 6939 Yuba 7 miles west of Brown Valley Comment
  HSC10908  Setaria pumila T. F. Newman 1965-8-22 6558 Yuba Carnes Ranch, 10 mi. N of Marysville Comment
  UCD92707  Setaria pumila Beecher Crampton 1964-10-22 7223 Yuba 3 miles east of Brown's Valley Dry Creek. 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
  CHSC97487  Setaria viridis Lowell Ahart 2007-5-14 13844 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS102448  Setaria viridis Lowell Ahart 2001-8-14 9109 Yuba On the north side of Marysville Road, about 50 yards east of the east end of Bullards Bar Dam. 609 Comment
  CAS-BOT-BC263234  Sherardia arvensis Lowell Ahart 2007-5-12 13814 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS113725  Sherardia arvensis Lowell Ahart 2007-5-12 13814 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS118303  Sherardia arvensis Lowell Ahart 2011-6-7 17413 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCD81498  Sherardia arvensis Christopher Michael Bronny 2009-4-1 10 Yuba Oat Hills' area of Sierra Nevada foothills. 146 Comment
  UCD122009  Sherardia arvensis Barbara Yungert 1974-5-1 104 Yuba Near road and SC-12 fence, SC-14 project area, Sierra Foothill Field Station. Comment
  UCD82076  Sherardia arvensis Robin McMaster 1973-4-7 227 Yuba Browns Valley. Comment
  RSA121083  Sidalcea diploscypha H. S. Yates 1933-5-24 3643 Yuba Smartsville, 3 miles W. of Cabbage Patch 30 Comment
  SEINET8944096  Sidalcea diploscypha M. Dailey 1959-5-3 s.n. Yuba Along Hwy 50, 5 miles S of Grass Valley. 515 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
  SEINET7085244  Sidalcea gigantea Steven R. Hill 2010-7-17 38555 Yuba Along La Porte Road, 950 feet northeast of Travis Saddle. 13.6 kilometers north-northwest of Camptonville. Just southwest of Strawberry Valley Sierra Nevada. Type Locality. Coordinate Datum: WGS84/NAD83. 1100 Comment
  SD130448  Sidalcea glaucescens Lowell Ahart 1980-7-25 2485 Yuba Near Slate Creek. 1200 Comment
  UC871451  Sidalcea hartwegii Lewis S. Rose 1940-5-28 40400 Yuba Oregon House 457 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
  SBBG121200  Sidalcea hirsuta L. Ahart 2007-5-14 13851 Yuba bottom of a large vernal pool, ca. 30 yards E of the third power tower, ca. 0.5 mi N of Fruitland Rd, ca. 13.5 mi (air) NE of Marysville 29 Comment
  UCD80458  Sidalcea malviflora CNPS SN Foothill Team 2005-5-31 SNFN 0330 b Yuba BLM, Ponderosa Landfill, near the southeast corner of the parcel (east of the defunct landfill). 685 Comment
  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
  RSA87486  Sidalcea malviflora subsp. asprella C. L. Hitchcock 1952-5-28 19539 Yuba 1/2 mile S. E. of Challenge, Comment
  UC1728658  Silene bridgesii Richard Olmstead 1986-6-13 843 Yuba Junction of Oregon Creek with Middle Fork Yuba River (Oregon Creek Picnic Ground); Oregon Creek Picnic Ground 451 Comment
  UC852802  Silene californica Lewis S. Rose 1940-5-28 40381 Yuba Browns Valley 60 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
  UCR169008  Silene gallica David Charlton 2005-5-16 8024 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  UCD98992  Silene laciniata subsp. californica Kathleen Keliher 1975-4-19 64 Yuba 100 yards below Englebright Reservoir, Sierra Foothill Field Station. 152 Comment
  CAS-BOT-BC74926  Sinapis arvensis Lowell Ahart 1974-5-18 s.n. Yuba About 5 miles west of Loma Rica. 300 Comment
  CHSC43438  Sisymbrium altissimum Lowell Ahart 1977-4-16 1310 Yuba Sidewalks in Marysville, near the Rideout Hospital. 27 Comment
  CAS-BOT-BC75047  Sisymbrium altissimum Lowell Ahart 1977-4-16 s.n. Yuba Marysville. 30 Comment
  UCD115753  Sisymbrium officinale Barbara Yungert 1974-4-14 32 Yuba east of road near gate, Meathook project area, Sierra Foothill Field Station. Comment
  UCD37892  Sisyrinchium bellum Beecher Crampton 1962-4-24 6318 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD138852  Sisyrinchium bellum Barbara Yungert 1974-4-16 47 Yuba north of Road 4, SC-14 project area, Sierra Foothill Field Station. Comment
  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
  UC581344  Solanum carolinense H. Crane September, 1937 Yuba near Marysville Comment
  CDA36460  Solanum elaeagnifolium Kevin Roush 2011-8-8 PDR# 1616478 Yuba Marysville; Biz Johnson Dr. under 10th St. Bridge. 0 Comment
  SJSU4467  Solanum parishii J. B. Willis Jr. 1969-4-27 80 Yuba Timbuctoo Rd 0.25 mi off State Rte 20, 19 mi E of Marysville Comment
  UCD126996  Solanum parishii Barbara Yungert 1974-5-1 105 Yuba south of county road, along fence line, H-9 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC364917  Solidago velutina subsp. californica Lowell Ahart 1983-8-10 4275 Yuba Along the Peterson Ridge Road, about 5 miles east of Challenge 1000 Comment
  UC1330020  Soliva sessilis Beecher Crampton 1967-5-17 7941 Yuba 5 mi e Brown's Valley; UC Sierra Foothill Range Field Station Comment
  CAS-BOT-BC374416  Sonchus asper Lowell Ahart 1979-6-25 s.n. Yuba One mile south of Challenge 700 Comment
  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
  UCR201739  Sorghum halepense George K. Helmkamp, E. A. Helmkamp 2008-10-6 14212 Yuba Sacramento Valley, Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  CHSC97640  Spergularia bocconi Lowell Ahart 2007-5-14 13865 Yuba Along the dirt road, near the power tower, power tower is about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  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
  CHSC45562  Spergularia rubra Lowell Ahart 1980-8-12 2565 Yuba On a gravel bar, a little below where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  UCD99284  Spergularia rubra G. K. Helmkamp 2006-10-10 11523 Yuba Northern Sierra Nevada Mountains Foothills; along Hwy CA-49 just north of the Nevada County line at the Middle Yuba River bridge. 451 Comment
  CAS-BOT-BC390586  Spergularia rubra Lowell Ahart 1980-8-12 2565 Yuba Along Slate Creek 1250 Comment
  CHSC110463  Sphenosciadium capitellatum L. P. Janeway 2013-7-24 11186 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
  CHSC97868  Sporobolus indicus Terry Steven; E. Storm 2006-5-20 PDR 1408219 Yuba Terry Stevens property, 6277 Marysville Rd., Browns Valley. New shoots in irrigated pasture. 125 Comment
  UCD125800  Stachys albens Beecher Crampton 1970-6-15 8617 Yuba UC Sierra Foothill Range Field Station. Around 6 miles east Brown's Valley. Comment
  JEPS113685  Stellaria borealis subsp. sitchana Lowell Ahart 2007-8-7 14408 Yuba Hampshire Creek Meadow, about 20 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. On the east side of a small pond, on the west side of the dirt road 1021 Comment
  UCR206959  Stellaria media George K. Helmkamp, E. A. Helmkamp 2009-5-28 14829 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 Comment
  JEPS103446  Stephanomeria virgata subsp. pleurocarpa Lowell Ahart 2002-10-10 9980 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
  SJSU10224  Stipa lemmonii C. W. Sharsmith 1983-6-8 8805 Yuba roadside, Slate Creek at bridge crossing of the Scales and Quincy - LaPorte Roads 1066 Comment
  SJSU11310  Stipa lettermanii S. H. Casey 1981-6-24 1203 Yuba Rose Ranch c. mi NE from Strawberry Valley (Yuba Co) on La Porte- Quincy Rd; Yuba & Sierra county boundary 1432 Comment
  SEINET8081019  Stipa pulchra A. Tiehm 1975-1 647 Yuba U.C. Sierra Foothill Field station. 274 Comment
  UCD116426  Streptanthus tortuosus Barbara Yungert 1974-4-18 62 Yuba north of Yuba River, F-2 project area, Sierra Foothill Field Station. 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
  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 Ar