Search Results — 2000 specimen records retrieved (1524 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SD236332  Abutilon theophrasti G. 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
  CAS-BOT-BC30406  Achillea millefolium H. H. Keifer 1928-5-2 s.n. Yuba North Peak, Marysville Buttes 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
  CAS-BOT-BC218689  Achnatherum lemmonii Lowell Ahart 1979-6-25 s.n. Yuba 2 miles E of Challenge 700 Comment
  CHSC100745  Achnatherum lemmonii L. P. Janeway 2008-5-11 9364 Yuba Northern High Sierra Nevada. In the northwestern head of Slapjack Creek; along Road 19N34, 1.3 road km southeast of Challenge-La Porte Road; about 1.2 km south-southeast of Woodleaf. 940 Comment
  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
  JEPS100273  Achnatherum lemmonii var. lemmonii Dean W. Taylor 2001-5-9 17646 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  CHSC41175  Achnatherum stillmanii L. P. Janeway; Gary Benson 1984-8-6 Yuba Plumas National Forest. Between Strawberry Valley and Slate Creek. 1173 Comment
  JEPS100364  Achnatherum stillmanii Dean W. Taylor 2001-6-6 17770 Yuba Peterson Ridge (ca. 2 air mi SE of Strawberry Valley); along Forest Road 35 (20N35) about 0.8 miles northeast of the junction with Forest Road 04 (20N04), on the easterly facing canyon wall of Slate Creek 1158 Comment
  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
  UCD104579  Acmispon R. Osborne 1987-9-24 s.n. Yuba H.H. Ovantero Ranch, Dist. 10. 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
  UCD104017  Acmispon argophyllus var. fremontii Barbara Yungert 1974-5-8 136 Yuba North of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  CHSC43382  Acmispon brachycarpus Lowell Ahart 1976-4-15 1068 Yuba Along the edge of La Porte Road, about 2 miles north-east of Rackerby. 457 Comment
  UCD104099  Acmispon brachycarpus Barbara Yungert 1974-4-4 4 Yuba Along four wheel drive road, north of Yuba River, Sierra Foothill Field Station. Comment
  UCD104173  Acmispon grandiflorus Kathleen Keliher 1975-5-30 123 Yuba 200 yard up roadcut along Oregon Hill Road, 5 miles east of La Porte Road. 701 Comment
  UCD38321  Acmispon grandiflorus Beecher Crampton 1954-5-10 1844 Yuba Hwy 49, 7 miles south of Camptonville. Comment
  SBBG3418  Acmispon grandiflorus var. grandiflorus H. and M. Dearing 1939-5-7 Yuba Brownsville 762 Comment
  JEPS112956  Adiantum aleuticum Dean W. Taylor 2001-6-18 17787 Yuba canyon of Slate Creek, along Forest Road 35 about 0.5 miles SE of the bridge over Slate Creek 1036 Comment
  CAS-BOT-BC206889  Aesculus californica Alice Eastwood 1921-5-22 10542 Yuba Los Vergils Comment
  UCD136664  Aesculus californica Barbara Yungert 1974-5-14 154 Yuba south of Porter Creek, south of station, Sierra Foothill Field Station. 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
  CAS-BOT-BC295537  Agnorhiza bolanderi G. L. Stebbins 1966-5-22 6413 Yuba 2 miles north of Oregon House, on road to Forbestown 396 Comment
  UCD33594  Agoseris grandiflora Beecher Crampton 1970-6-15 8618 Yuba UC Sierra Foothill Range Field Station, ca. 6 miles east of Brown's Valley. Comment
  CAS-BOT-BC15448  Agoseris grandiflora var. grandiflora Lowell Ahart 1979-6-25 s.n. Yuba 1 mile south of Challenge 700 Comment
  CHSC97118  Agrimonia gryposepala Lowell Ahart 2007-8-7 14424 Yuba West side of an open meadow, on the southeast part of Hampshire Creek Meadow, about 50 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  CAS-BOT-BC451165  Agrimonia gryposepala Lowell Ahart 1977-7-31 s.n. Yuba Aount 1 mile south of Challenge 700 Comment
  CHSC97618  Agrostis avenacea Lowell Ahart 2007-5-14 13862 Yuba On dry bare red soil, on the bottom of a swale, about 250 yards west of the power tower, power tower is about 30 yards north of the Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  POM266621  Agrostis avenacea J. C. Roos 1939-7-3 1518 Yuba Marysville. Comment
  RSA727117  Agrostis avenacea L. Ahart 2007-5-14 13862 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  UCD51766  Agrostis avenacea Beecher Crampton 1965-5-11 7323 Yuba 2.5 miles southwest Brown's Valley. Comment
  CHSC44540  Agrostis exarata Lowell Ahart 1979-6-25 1939 Yuba About 1 mile south of Challenge. 640 Comment
  UCD32902  Agrostis exarata Beecher Crampton 1965-6-17 7377 Yuba Yuba County, ca. 3/4 mile north Stanfield Hill, Willow Glen Creek. 396 Comment
  UCD52111  Agrostis exarata Beecher Crampton 1965-6-17 7379 Yuba 4 miles south Brownsville, Willon Glen Road. 670 Comment
  JEPS121794  Agrostis gigantea L. P. Janeway, James Nixon, Eduardo Gonzales 2014-7-2 11429 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow opening just northeast of Little Oregon Creek and 0.2 km east of Oregon Hill Road; 7.3 air-km southeast of Challenge. Comment
  CAS-BOT-BC139343  Agrostis idahoensis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54088 Yuba Sierra Nevada. 3.6 miles northest of Strawberry Valley on La Porte - Quincy road. 1280 Comment
  CDA14571  Agrostis idahoensis G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3050 Yuba La Porte _ Quincy Road 3.6 miles northeast of Strawberry Valley at the Plumas county line. 1280 Comment
  UCD52805  Agrostis idahoensis G. Douglas Barbe; J. T. Howell, T. C. Fuller 1981-6-22 3050 Yuba La Porte - Quincy Road 3.6 miles northeast of Strawberry Valley at the Plumas County line. 1280 Comment
  CAS-BOT-BC138782  Agrostis scabra Lowell Ahart 1980-8-12 2575 Yuba Sierra Nevada. Along Slate Creek. 1250 Comment
  CHSC84452  Agrostis stolonifera Lowell Ahart 2003-7-6 10366 Yuba Near a meadow, east of the power line, about 50 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  JEPS104246  Agrostis stolonifera Lowell Ahart 2003-7-6 10366 Yuba Near a meadow, e of the power line, ca 50 yd nw of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  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
  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
  UCD55732  Aira caryophyllea Beecher Crampton 1957-6-5 4128 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  UCR118917  Aira caryophyllea Beecher Crampton 1957-6-5 4154 a Yuba Central Sierra Nevada foothills., 1.3 Miles east of Oregon House Store 457 Comment
  UCD55787  Aira caryophyllea var. capillaris Beecher Crampton 1965-5-11 7317 Yuba 2.5 miles southwest of Brown's Valley. Comment
  RSA116440  Aira elegans Beecher Crampton 1957-6-5 4153 Yuba 1.3 miles east of Oregon House Store Comment
  SEINET3449086  Alisma plantago-aquatica Unknown 2003-7-17 10416 Yuba Smartville, Smartville, about 6 air miles south, west side of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road 120 Comment
  CHSC84213  Alisma triviale Lowell Ahart 2003-7-17 10416 Yuba On the bottom of a stream, on the west side of Smartville road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 129 Comment
  UCR178423  Allium L. K. Mann 1957-4-19 s.n. Yuba Northern Sierra Nevada Mtns, at east edge of top of dam [New Bullards Bar Dam] across North Fork Yuba River, between Dobbins and North San Juan 610 Comment
  UCD22594  Allium L. K. Mann 1957-4-19 s.n. Yuba At east edge of top of dam across north fork of Yuba River, between Dobbins and North San Juan. Comment
  CHSC22947  Allium amplectens Robert A. Schlising; G. Keator 1963-4-8 2498 Yuba Along Hwy 20, area of Browns Valley, 29.4 miles west of Nevada City. Comment
  JEPS13879  Allium amplectens Rimo Bacigalupi with L. R. Heckard, R. D. Sanderson, and G. Bacigalupi 1952-6-20 3758 Yuba 1.5 mi due s Brownsville (along road from Brownsville to Oregon House, just n of Washington Mill) 609 Comment
  CAS-BOT-BC462249  Allium amplectens Alice Eastwood 1930-4-13 17934 Yuba near Marysville Comment
  RSA21178  Allium amplectens Carl B. Wolf 1937-6-11 8777 Yuba Sacramento Valley, 5 miles S of Marysville. 18 Comment
  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
  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
  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
  NY247881  Allium sanbornii var. sanbornii A. W. Wood 1866-1 s.n. Yuba Near Fosters Bar. S.S. Sauborn Esq. 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
  UC1135121  Alnus rhombifolia M. A. Elvin 1933-7-14 51 Yuba Greenville Smartsville Quadrangle Comment
  CHSC44541  Alopecurus carolinianus Lowell Ahart 1978-4-14 1639 Yuba West of Kimball Lane and on the property of Shintaffer Farms Inc., about 2 miles north-east of Marysville. 30 Comment
  UCD55947  Alopecurus saccatus Beecher Crampton 1965-5-11 7324 Yuba 2.5 miles southwest of Brown's Valley. Comment
  CHSC97706  Amaranthus californicus Lowell Ahart 2007-11-8 14589 Yuba North of the waterway between the headland and the large island, on the strand of Camp Far West Reservoir, about 1/4 mile south of Rock Creek, about 1/2 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  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
  CHSC97137  Amaranthus hybridus Lowell Ahart 2007-6-30 14239 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  CHSC97443  Amaranthus retroflexus Lowell Ahart 2007-5-14 13840 Yuba Dry red bare soil, east of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  CDA10055  Ambrosia psilostachya L. Ahart 2002-10-1 9976 Yuba On the west side of the dirt road, east of the upper part of Englebright Reservoir on the Yuba River, along Rice s Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20. Comment
  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
  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
  JEPS95915  Ammannia coccinea Lowell Ahart 1999-9-17 8244 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
  UCD37849  Amsinckia Beecher Crampton 1962-4-24 6253 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  JEPS94317  Amsinckia intermedia Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7725 Yuba about 17 mi ne of Marysville (on bank of Browns Valley Water Ditch, n of the poor dirt road, s of Dry Creek, about 1 1/4 mi e of Scott Forbes Road (Long Bar Road)); Browns Valley Water Ditch 198 Comment
  SEINET11792840  Amsinckia intermedia C. Aarstad 1979-4-28 s.n. Yuba At junction of Rt. 20 and N for of Yuba in Browns Valley 183 Comment
  UCD119710  Amsinckia intermedia Barbara Yungert 1974-4-4 1 Yuba Along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UCD119711  Amsinckia intermedia Barbara Yungert 1974-4-14 33 Yuba Meathook project area, Sierra Foothill Field Station. Comment
  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
  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
  RSA220010  Anagallis minima J. T. Howell, G. H. True 1967-6-13 3559 Yuba Camp Far West reservoir on Bear River E. of Wheatland. In damp soil at edge of reservoir. 61 Comment
  RSA10978  Andropogon glomeratus C. B. Wolf 1927-11-5 1436 Yuba Roadside swale, 8 mi. from Marysville on road to Browns Valley. Comment
  RSA88333  Andropogon virginicus G. H. True 1951-6-6 s.n. Yuba meadows near Parks Bar Comment
  UCD56096  Andropogon virginicus Gordon H. True 1951-1-6 s.n. Yuba near Parks Bar. Comment
  UCD56098  Andropogon virginicus R. N. Raynor 1938-4-25 s.n. Yuba near Marysville. Comment
  UCD80513  Andropogon virginicus CNPS SN Foothill Team 2005-7-5 SNNR 0467 a Yuba CDFG Daugherty Hill Wildlife Area. 278 Comment
  CAS-BOT-BC137784  Andropogon virginicus var. virginicus William Anderson 1966-11-25 s.n. Yuba Sierra Nevada. Loma Rica. 121 Comment
  CHSC116300  Andropogon virginicus var. virginicus Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20643 Yuba On the sides of the spillway area, at the west side and near the top of Lake Francis Dam, about 1 1/2 miles south of Dobbins. 512 Comment
  JEPS124317  Andropogon virginicus var. virginicus Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20643 Yuba Above the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  SEINET5717834 Image available Anemone quinquefolia Andrea Smith 1972-1 7 Yuba Along Brandy Creek near the Pendola Ranch, about 5 miles west of Camptonville.; Camptonville 610 Comment
  CHSC84145  Anisocarpus madioides Lowell Ahart 2003-7-2 10343 Yuba About 200 yards south of the 4-H Camp, on the west side of Oregon Hill Road, about 1/2 mile north of Marysville Road, about 2 miles (air) northeast of Dobbins. 815 Comment
  JEPS104293  Anisocarpus madioides Lowell Ahart 2003-7-2 10343 Yuba About 200 yd south of the 4-H Camp, on the w side of Oregon Hill Rd, ca 1/2 mi n of Marysville Rd, ca 2 mi (air) ne of Dobbins. 815 Comment
  CAS-BOT-BC63865  Antennaria argentea Lowell Ahart 1979-6-25 s.n. Yuba 2 miles eastof Challenge. 700 Comment
  CHSC70780  Antennaria argentea B. Castro; L. Gehrung 1995-6-2 573 Yuba Ca 2 air mi SE of Strawberry Valley, 0.5 to 0.8 mi N of the N Fork Yuba River, on S-trending ridge to Weed Point. Along both sides of USFS Rd 20N81. 1021 Comment
  RSA795537  Anthemis cotula L. Ahart 2011-6-7 17373 Yuba Bottom of a depression at the base of cliffs, to the north is a huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 air miles northeast of Marysville. 66 Comment
  JEPS87729  Anthoxanthum odoratum Lowell Ahart 1994-6-27 7391 Yuba about 4 mi ne of Strawberry Valley (near s side of Schwartz Meadow, on e side of La Porte Road); Schwartz Meadow, La Porte Road 1219 Comment
  JEPS87730  Anthoxanthum odoratum Lowell Ahart 1994-6-27 7391 Yuba about 4 mi ne of Strawberry Valley (near s side of Schwartz Meadow, on e side of La Porte Road); Schwartz Meadow, La Porte Road 1219 Comment
  UCD33107  Anthoxanthum odoratum Beecher Crampton 1966-6-14 7746 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  UCD56269  Anthoxanthum odoratum Beecher Crampton 1966-6-14 7746 Yuba 1 mile east of Brownsville. 731 Comment
  JEPS113288  Anthriscus caucalis Lowell Ahart 2007-4-17 13679 Yuba East of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  JEPS118314  Anthriscus caucalis Lowell Ahart 2011-6-7 17369 Yuba Just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  RSA795346  Anthriscus caucalis L. Ahart 2011-6-7 17369 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 air miles northeast of Marysville. 66 Comment
  CHSC90335  Aphanes occidentalis Lowell Ahart 2005-3-11 11598 Yuba On the west side of the poor dirt road, about 1/2 mile west of Marysville Road, about 1/4 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/4 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 344 Comment
  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
  CAS-BOT-BC128687  Arbutus menziesii Alice Eastwood 1918-4-7 6799 Yuba Camptonville Comment
  UCD117489  Arbutus menziesii Kathleen Kehiler 1975-4-30 76 Yuba Along Oregon Hill Road between Bullards Bar Reservoir and Challenge. Comment
  UCR168799  Arbutus menziesii David Charlton 2005-5-16 8021 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  RSA96077  Arbutus menziesii P. C. Everett, E. K. Balls 1954-10-8 20247 Yuba Hwy. 49, Nevada City to Downieville, 3.4 mi. NE of Nevada-Yuba Co. line. 762 Comment
  CAS-BOT-BC38553  Arctostaphylos mewukka subsp. truei Volney Rattan 1880-1-1 s.n. Yuba Yuba Co. Comment
  CAS-BOT-BC46712  Arctostaphylos patula Alice Eastwood 1918-4-7 6797 Yuba Camptonville. Comment
  UCD52572  Arctostaphylos viscida Kathleen Keliher 1975-5-6 89 Yuba Along Forbestown Road, one mile east of Woodleaf, Yuba County, California. 929 Comment
  CAS-BOT-BC48245  Arctostaphylos viscida subsp. viscida Junea Kelley 1920-4-24 s.n. Yuba Los Vergils Comment
  CAS-BOT-BC48247  Arctostaphylos viscida subsp. viscida Alice Eastwood 1921-5-22 10599 Yuba Los Vergils Comment
  JEPS95028  Aristida oligantha Lowell Ahart 1997-8-7 7808 Yuba about 1 mi n of Brownsville (on n side of New York Flat Road, about 1 mi nw of La Porte Road); New York Flat Road 731 Comment
  POM266630  Aristida oligantha J. C. Roos 1939-7-3 1517 Yuba plains near Marysville Comment
  UCD168078  Aristida oligantha James Neilson 1961-10-16 463 Yuba 1/2 mile west of Brown's Valley Rd. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UCD56441  Aristida oligantha Beecher Crampton 1957-6-5 4123 Yuba 10 miles E of Marysville. Along State Hwy. 20. Comment
  UCR25611  Aristida oligantha John C. Roos 1939-7-3 1517 Yuba Marysville 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
  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
  CAS-BOT-BC400416  Aristolochia californica Carl B. Wolf 1930-10-13 1741 Yuba Creek flowing into Yuba River on Brown's Valley to Smartsville Road 152 Comment
  CDA24668  Armoracia rusticana A. Worledge 1944-1 Yuba 0 Comment
  CHSC63206  Arrhenatherum elatius Lowell Ahart 1994-6-27 7392 Yuba North-west side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  JEPS87728  Arrhenatherum elatius Lowell Ahart 1994-6-27 7392 Yuba about 4 mi ne of Strawberry Valley (nw side of Schwartz Meadow, e side of La Porte Road); Schwartz Meadow, La Porte Road 1219 Comment
  CHSC113199  Artemisia douglasiana Lowell Ahart 2013-11-30 19314 Yuba On the sides of a wash, about 20 yards north of Dry Creek, just above the high water line of Collins Lake, about 350 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 361 Comment
  JEPS115019  Artemisia douglasiana Lowell Ahart 2007-11-1 14543 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  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
  CAS-BOT-BC65897  Aspidotis densa Lowell Ahart 1980-8-12 2529 Yuba About 2 miles south-east of Woodleaf 800 Comment
  CAS-BOT-BC65898  Aspidotis densa W. R. Dudley s.n. Yuba Near South Yuba Comment
  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
  JEPS94622  Asyneuma prenanthoides Lowell Ahart 1997-8-7 7816 Yuba Near a branch of Little Oregon Creek, on the west side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  CAS-BOT-BC66030  Athyrium filix-femina var. cyclosorum W. Fred Ayres Summer 1925 s.n. Yuba unspecified Comment
  JEPS107422  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
  CHSC107580  Avena barbata Lowell Ahart 2011-6-7 17421 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  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
  CHSC68473  Barbarea orthoceras Lowell Ahart 1997-4-6 7718 Yuba Along the south side of Dry Creek, at the intersection of Scott Forbes Road and Peoria Road, just east of the bridge across Dry Creek, about 14 miles northeast of Marysville. 60 Comment
  CAS-BOT-BC16788  Barbarea verna Lowell Ahart 1977-4-18 s.n. Yuba Along Dry Creek, about 10 miles northeast of Marysville. 100 Comment
  CHSC87349  Berberis aquifolium var. dictyota Lowell Ahart 2004-4-27 10770 Yuba About 20 yards north of a drainage, about 50 yards east of the road, about 1/2 mile (air) southeast of Woodleaf. 931 Comment
  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
  RSA726441  Bidens frondosa L. Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14497 Yuba About 1 mile (air) east of Clipper Mills. 1016 Comment
  UCR169009  Blennosperma nanum David Charlton 2005-5-16 8013 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  CDA20322  Bothriochloa pertusa E. Storm, D. Flavell 2005-3-7 PDR 1295306 Yuba Browns Valley, UC Field Station. 0 Comment
  JEPS103252  Botrychium multifidum Lowell Ahart 2002-10-9 9964 Yuba E of a small stream, at the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1075 Comment
  UCD82292  Boykinia occidentalis Robin McMaster 1973-6-24 501 Yuba Oregon Creek Campground. Comment
  CAS-BOT-BC418425  Boykinia occidentalis Rimo Bacigalupi 1927-7-2 1590 Yuba Downscille Road almost 8 miles northeast of Comptonville Comment
  CAS-BOT-BC145443  Brachypodium distachyon Lowell Ahart 1981-6-13 2848 Yuba Sierra Nevada. On west side of McGinn Hill, east of Loma Rica. 300 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
  UCD57001  Brachypodium distachyon Beecher Crampton 1957-6-5 4164 Yuba Opposite old Stewart and Bros. and Wells Fargo Store. Site of old Timtuctoo. Comment
  UCR168805  Brachypodium distachyon David Charlton 2005-5-16 8033 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  CHSC97655  Briza maxima Lowell Ahart 2007-5-14 13863 Yuba Bottom of a swale, about 250 yards west of the power tower, power tower is about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS113691  Briza maxima Lowell Ahart 2007-5-14 13863 Yuba Bottom of a swale, about 250 yards west of the power tower, power tower is about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  RSA727116  Briza maxima L. Ahart 2007-5-14 13863 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  SEINET3828409  Briza maxima George K. Helmcamp, E. A. Helmkamp 2011-1 17213 Yuba Eastern edge of Sacramento Valley: Camp Far West Road 1.3 miles southeast of it's junction with Spencerville road. 5.25 mi. NE (52 degrees) of Wheatland (camp far west 7.5') 62 Comment
  SEINET3837936 Image available Briza maxima George K. Helmkamp, E. A. Helmkamp 2011-5-6 17210 Yuba East edge of Sacramento Valley: junction of Camp Far West Road and Spenceville Road, 5.4 mi NE of Wheatland (Camp Far West) 56 Comment
  JEPS118731  Briza minor L. P. Janeway and Melanie Williams, Tim Hanson 2011-6-9 10373 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 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
  SEINET4344868  Briza minor A. Tiehm 1975-1 644 Yuba U.C. Sierra Foothill Field station 274 Comment
  UCD57407  Briza minor Beecher Crampton 1957-6-5 4155 Yuba 1.3 miles east of Oregon House Store. Comment
  UCR231313  Briza minor George K. Helmkamp, E. A. Helmkamp 2011-5-6 17187 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.3 mile north of the junction with Hokan Lane, vicinity of Camp Far West Reservoir 105 Comment
  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
  UCD139146  Brodiaea R. E. Preston 1996-5-22 936 Yuba Beale Air Force Base. 30 Comment
  UCD139147  Brodiaea R. E. Preston 1996-5-22 935 Yuba Beale Air Force Base. 33 Comment
  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
  SEINET11265355  Brodiaea coronaria Craig C. Freeman, Mark A. Wetter 1983-5-22 1892 Yuba CA 20, 11.2 mi E of the Sutter County line.; 0 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
  UCD77171  Brodiaea elegans subsp. elegans Robert E. Preston 2004-6-12 2257 Yuba 1.6 mi SW of Camptonville, along Marysville Rd, 0.2 mi W of its jct with Hwy 49 762 Comment
  CAS-BOT-BC484283  Brodiaea elegans subsp. elegans Martin Georges 1953-7-19 s.n. Yuba Lake Vera, North Fork, Yuba River 96 Comment
  CAS-BOT-BC484284  Brodiaea elegans subsp. elegans Alice Eastwood 1921-5-22 10583 Yuba Los Verjeles Comment
  UCD139169  Brodiaea elegans subsp. elegans Barbara Yungert 1974-5-13 146 Yuba east side of road between the old headquarters and the river, Sierra Foothill Field Station. Comment
  CHSC113648  Brodiaea minor L. P. Janeway 2014-6-24 11414 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 480 m northeast of Marysville Road. 756 Comment
  CHSC22961  Brodiaea minor Robert A. Schlising 1963-5-3 2546 Yuba 29.4 miles west of Nevada City along Hwy 20. 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
  CAS-BOT-BC484368  Brodiaea minor Barbara T. Keller 1975-6-10 1514 Yuba Willow Glen Rd. from Stanfield Hill to Brownsville, about 11.5 mi. north of junction. of Willow Glen Rd. and Marysville Rd. Comment
  CAS-BOT-BC484514  Brodiaea minor Gordon H. True 1963-4-17 1170 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Hwy. 30 Comment
  JEPS13878  Brodiaea minor Rimo Bacigalupi with L. R. Heckard, Ruth Sanderson and Geo. Bacigalupi 1952-6-20 3759 Yuba edges of desiccated roadside pool just n Washington Mill (along road from Brownsville to Oregon House, 1.5 mi due s of Brownsville) 609 Comment
  UCD77190  Brodiaea nana Robert E. Preston 2004-4-25 2227 Yuba Ca. 6.5 mi NE of Wheatland, along Camp Far West Rd. 99 Comment
  CHSC107170  Brodiaea sierrae L. P. Janeway 2011-7-5 10490 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants occasional around edges of the meadow. 750 Comment
  CHSC112959  Brodiaea sierrae L. P. Janeway 2014-7-2 11437 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.6 air-km east of Challenge, along Road 19N03 1.3 road mi north of its crossing of Indian Creek, on slopes just east of the creek. 834 Comment
  CHSC113647  Brodiaea sierrae L. P. Janeway 2014-6-24 11415 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 480 m northeast of Marysville Road. 756 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
  JEPS94517  Brodiaea sierrae Lowell Ahart 1997-8-7 7826 Yuba about 3 air mi se of Challenge (on w side of the dirt road, near an unnamed stream, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  UC1133869  Brodiaea sierrae M. A. Elvin 1933-7-8 46 Yuba 1/2 mi s Indiana Ranch; Smartsville Quadrangle 579 Comment
  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
  SEINET7067128  Brodiaea stellaris A. G. Vestal 1947-4-29 s.n. Yuba About 5 miles west of Smartville on the Smartville Road. Coordinate datum: NAD27. UTM Zone 10, 640771mE, 4339031mN. Comment
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Jul 17 2018
  RSA319549  Bromus Patricia Wilder 1971-6-23 5204 Yuba Feather River. Two miles southeast of Forbestown on Challenge cut-off near junction with Forbestown Road. 762 Comment
  SEINET4345216  Bromus carinatus A. Tiehm 1975-1 654 Yuba U.C. Sierra Foothill Field Station 396 Comment
  HSC9153  Bromus catharticus T. F. Newman 1965-10-9 6553 Yuba Carnes Ranch, 10 mi. N of Marysville Comment
  CHSC63306  Bromus commutatus Lowell Ahart 1994-6-5 7303 Yuba On the south side of Costa Creek, on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  UCD58472  Bromus commutatus Beecher Crampton 1965-6-17 7376 Yuba Ca. 3/4 mile north of Stanfield Hill. Willow Glen Creek. 396 Comment
  UCD58541  Bromus diandrus Beecher Crampton 1962-4-17 6171 Yuba Ca. 2 miles south of Marysville. Island Road and State Hwy. 24. Comment
  UCD59483  Bromus diandrus Beecher Crampton 1962-4-24 6246 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  CAS-BOT-BC155483  Bromus hordeaceus Gordon H. True 1968-5-6 4230 Yuba Near Gales Orchard ca. 6 miles east of Camptonville. 1249 Comment
  CHSC107156  Bromus hordeaceus L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10374 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants scattered throughout the meadow. 750 Comment
  HSC9201  Bromus hordeaceus T. F. Newman 1964-4-12 50 Yuba 8.5 mi. N of Marysville on Alt. 40., Boyer Rd. Comment
  JEPS113726  Bromus hordeaceus Lowell Ahart 2007-5-12 13823 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UCD58673  Bromus hordeaceus Barbara Yungert 1974-5-1 G- 2 Yuba Along SC-12 fence, southeastern bend in road, SC-14 project area. Sierra Foothill Field Station. Comment
  UCR231331  Bromus hordeaceus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17186 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.3 mile north of the junction with Hokan Lane, vicinity of Camp Far West Reservoir 105 Comment
  SEINET4391216  Bromus hordeaceus C. Aarstad 1979-4-28 s.n. Yuba At junct of Rt. 20 and N fork of Yuba in Browns Valley 183 Comment
  SEINET4391217  Bromus hordeaceus A. Tiehm 1975-4-25 633 A Yuba U.C. Sierra Foothill Field Station 198 Comment
  JEPS124414  Bromus japonicus Lowell Ahart, Susan Kephart, Jim Kephart 2015-6-4 20198 Yuba About 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. Comment
  JEPS95516  Bromus laevipes Lowell Ahart 1994-6-5 7299 Yuba 3 air miles E of Forbestown (E side of Costa Creek, S side of Forbestown Road) 853 Comment
  CAS-BOT-BC162368  Bromus madritensis Lowell Ahart 1981-6-13 2850 Yuba Sierra Nevada. On west side of McGinn Hill, east of Loma Rica. 300 Comment
  UCD59028  Bromus madritensis Beecher Crampton 1957-6-5 4140 Yuba 1 mile east of Stanfield Hill. Comment
  CHSC113665  Bromus madritensis subsp. madritensis L. P. Janeway 2014-5-12 11245 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  CAS-BOT-BC162207  Bromus orcuttianus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54081 Yuba Sierra Nevada. About 2 miles northeast of Dobbins on Oregon Hill Road. 701 Comment
  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
  CHSC107151  Bromus racemosus L. P. Janeway; 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. Small grassy meadow. Plants scattered in an area of slight water sheet flow. 750 Comment
  UCD59582  Bromus rubens J. Hardison 1989-5-23 142 Yuba Sierra Field Station. 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
  UCD59699  Bromus sterilis Beecher Crampton 1962-4-24 6268 Yuba 5 miles east of Browns Valley. Sierra Foothill Range Field Station. Comment
  JEPS100272  Bromus tectorum Dean W. Taylor 2001-5-9 17645 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  CHSC90486  Calandrinia ciliata Lowell Ahart 2005-3-11 11620 Yuba In the center of the poor dirt road, 100 yards west of a large rock outcrop, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 386 Comment
  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
  RSA795535  Calandrinia ciliata L. 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 air miles northeast of Marysville. 66 Comment
  UCR231317  Calandrinia ciliata George K. Helmkamp, E. A. Helmkamp 2011-5-6 17195 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.9 mile west of the junction at Camp Far West Reservoir 65 Comment
  CHSC96476  Callitriche heterophylla var. bolanderi Lowell Ahart 2007-4-17 13684 Yuba In shallow water of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  CHSC97446  Callitriche heterophylla var. bolanderi Lowell Ahart 2007-5-14 13884 Yuba Wet bare soil, on the bottom of a swale, moisture is from a leaking canal, about 250 yards west of the power tower. Power tower is about 30 yards north of of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS113287  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
  JEPS124312  Callitriche heterophylla var. heterophylla Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20649 Yuba Below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  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
  CAS-BOT-BC487483  Calochortus albus Alice Eastwood 1921-5-22 10558 Yuba Los Vergils Comment
  CAS-BOT-BC487491  Calochortus albus Barbara T. Keller 1975-6-10 1516 Yuba Willow Glen Rd. from Stanfield Hill to Brownsville, about 11.5 miles north of junction with Marysville Road Comment
  SEINET7072987  Calochortus luteus A. G. Vestal 1963-5-30 s.n. Yuba Dry Creek at junction with Peoria Road north of Sicard. Coordinate datum WGS84/NAD83. (39? deg. 14' 2" North Latitude, -121? deg. 20' 47" West Longitude. UTM Zone 10, 642723mE, 4343827mN. Coordinate datum: NAD27). Comment
  CAS-BOT-BC483433  Calochortus luteus Lewis S. Rose 1940-5-28 40401 Yuba Oregon House 457 Comment
  CAS-BOT-BC483434  Calochortus luteus Alice Eastwood 1921-5-22 s.n. Yuba Los Vergils Comment
  CAS-BOT-BC483435  Calochortus luteus Alice Eastwood 1921-5-22 10546 Yuba Los Vergils Comment
  SEINET8197375  Calochortus luteus C. Aarstad 1979-4-28 s.n. Yuba Junction of Rte 20 and North Fork of Yuba River in Browns Valley. 183 Comment
  CHSC10605  Calochortus monophyllus Lowell Ahart 1968-5-15 Yuba Near Bullards Bar Dam. 914 Comment
  SBBG22463  Calochortus monophyllus H. and M. Dearing 1939-5-6 3283 C Yuba near Challenge Comment
  UC477577  Calochortus monophyllus L. S. Smith May 1931 Yuba Camptonville Dist. Tahoe National Forest 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-BC493081  Calochortus monophyllus Alice Eastwood 1921-5-22 10578 Yuba Los Vergils 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
  SJSU9970  Calochortus monophyllus J. B Willis Jr. 1969-4-19 40 Yuba by Marysville Rd 0.5 mi E of Oregon House P.O., 7.5 mi W of Dobbins Comment
  UCD139558  Calochortus monophyllus Kathleen Keliher 1975-4-30 73 Yuba in front of entrance to Middle Brook Ranch, one and one half mile east of Dobbins on Marysville Road. 609 Comment
  UC477575  Calochortus nudus L. S. Smith May 1931 Yuba Camptonville Dist. Tahoe National Forest Comment
  SEINET7072989  Calochortus venustus A. G. Vestal 1963-5-30 s.n. Yuba About 5.3 miles north of Dry Creek [on the Peoria Road]. Coordinate datum WGS84/NAD83. (39? deg. 18' 9" North Latitude, -121? deg. 22' 33" West Longitude. UTM Zone 10, 640009mE, 4353245mN. Coordinate datum: NAD27). 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-BC270733  Calycadenia multiglandulosa David D. Keck 1932-7-1 1610 Yuba 2 miles E of Dobbins, Stanfield Hill 762 Comment
  UC1876156  Calycadenia multiglandulosa Gerald D. Carr 1971-8-15 632 Yuba 0.6 mi N of Oregon House Post Office on road to Brownsville. 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
  UCD129737  Calycadenia multiglandulosa Gerald D. Carr 1971-8-15 632 Yuba 0.6 mile north of Oregon House Post Office on road to Brownsville. Comment
  UCD129818  Calycadenia multiglandulosa Barbara Yungert 1974-5-15 159 Yuba aaround 200 yards from Dry Creek, Lower Lewis project area, Sierra Foothill Field Station. Comment
  RSA255476  Calycadenia multiglandulosa subsp. bicolor Gerald D. Carr 1971-5-23 554 Yuba 0.6 miles north of Oregon House Post Office on road to Brownsville Comment
  UC1119095  Calycadenia spicata M. A. Elvin 1933-6-6 27 Yuba 4 mi sw of Courtney Cross; Smartsville 60 Comment
  CHSC83020  Calycadenia truncata Lowell Ahart 2002-10-10 9977 Yuba On the east side of the dirt road, east of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20. 166 Comment
  CAS-BOT-BC90912  Calycanthus occidentalis Lowell Ahart 1980-6-19 2413 Yuba Sierra Nevada. 4.5 miles east of Challenge. 900 Comment
  SFV18641  Calycanthus occidentalis J. D. Dilley 2000-9-16 397 Yuba Sierra Nevada Oregon Creek picnic area on Highway 49, 18 miles north of Nevada City. 445 Comment
  UCD137935  Calycanthus occidentalis Barbara Yungert 1974-5-20 166 Yuba along Porter Creek south of station headquarters, Sierra Foothill Field Station. Comment
  UCD82844  Calycanthus occidentalis Robin McMaster 1973-6-24 496 Yuba Oregon Creek Campground. Comment
  JEPS104133  Calyptridium monospermum Lowell Ahart 2003-10-29 10685 Yuba On the south side of Lost Creek, below the high water line of Sly Creek Reservoir, ca 400 yd sw of the Day Camp, Sly Creek Reservoir. 1072 Comment
  OBI48880  Calyptridium monospermum Lewis S. Rose 1939-6-6 39230 Yuba 2 mi NE of Clipper Mills 1173 Comment
  UC852134  Calyptridium monospermum Lewis S. Rose 1939-6-6 39230 Yuba 2 mi ne of Clipper Mills 1173 Comment
  CHSC63135  Calystegia occidentalis subsp. occidentalis Lowell Ahart 1994-6-27 7400 Yuba On dry red rocky soil, along the north side of a small stream, on the east bank of the logging road, east of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  CHSC70244  Calystegia occidentalis subsp. occidentalis R. A. Schlising; L. A. Bellue 1973-6-13 3097 Yuba 3.8 mi SE of Challenge, along Oregon Hill Road. Comment
  CHSC110318  Camassia quamash subsp. breviflora L. P. Janeway 2013-6-7 11131 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
  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
  SEINET7072718  Camissonia gouldii 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
  CDA14564  Campanula prenanthoides G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3043 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  CHSC97452  Capsella bursa-pastoris Lowell Ahart 2007-5-14 13847 Yuba On dry red bare soil, east of the dirt road, about 20 yards northeast of the gate, about 20 yards south of the second power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  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-BC37799  Cardamine nuttallii Alice Eastwood 1918-4-7 s.n. Yuba Camptonville. Comment
  CHSC90466  Cardamine oligosperma Lowell Ahart 2005-3-11 11600 Yuba On the west side of a large rock outcrop, just east of the poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 386 Comment
  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
  CHSC78119  Carduus pycnocephalus Lowell Ahart 2000-5-25 8402 Yuba Bank of a large wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  CHSC63284  Carex amplifolia Lowell Ahart 1994-6-5 7301 Yuba On the bottom and sides of Costa Creek, on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  CHSC96958  Carex amplifolia Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-13 14296 Yuba On the south side of Hampshire Creek, on the southeast side of a large wet meadow, about 80 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  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
  UC1552705  Carex amplifolia Frederica Bowcutt 1985-6-8 589 Yuba 1 air mi se Canptonville (along Oregon Creek, 12 air mi n of Nevada City); Tahoe National Forest, Oregon Creek 762 Comment
  UCD37870  Carex angustata Beecher Crampton 1962-4-24 6289 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CHSC63188  Carex aurea Lowell Ahart 1994-6-27 7384 Yuba In a boggy meadow, north of the dirt road that goes from La Porte to the Poverty Hill Mine (County Road), east of Schwartz Meadow, about 4 miles north-east of Strawberry Valley. 1219 Comment
  CHSC112091  Carex cyrtostachya L. P. Janeway 2014-8-26 11571 Yuba Northern High Sierra Nevada. Plumas National Forest; about 50 m east of Oregon Hill Road, about 1 km south of Little Oregon Creek; 8 air-km southeast of Challenge. 668 Comment
  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
  JEPS121421  Carex cyrtostachya P. F. Zika, B. Wilson, L. Ahart, L. Janeway 2011-8-5 25718 Yuba Hampshire Meadow, 1 air mile E of Clipper Mills, northern Sierra Nevada Highlands (n SNH) Comment
  UCD80255  Carex densa CNPS SN Foothill Team 2005-3-17 SNFN 0041 Yuba CDFG Spenceville Wildlife Area. The seep is upslope to the SW of Jones Road, less than 100 m from gate at intersection with Spenceville Road. 100 Comment
  CHSC63192  Carex echinata subsp. echinata Lowell Ahart 1994-6-27 7385 Yuba Meadow, north of the dirt road that goes from La Porte Road to the Poverty Hill Mine (County Road), east of Schwartz Meadow, about 4 miles north-east of Strawberry Valley. 1219 Comment
  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
  SEINET10588483  Carex echinata subsp. echinata Lowell Ahart 2000-6-23 Ahart 8508 Yuba T20N, R8E, northwest 1/4 Section 15. About 200 yards east of the meadow along La Porte Road, about 50 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  CHSC84215  Carex feta Lowell Ahart 2003-7-6 10361 Yuba In a meadow, east of the power line, about 60 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  UCD33110  Carex feta Beecher Crampton 1966-6-14 7753 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  SEINET10650510  Carex feta Lewis S. Rose 1940-5-28 Rose 40384 Yuba Browns Valley. 61 Comment
  CHSC63286  Carex fracta Lowell Ahart 1994-6-5 7307 Yuba Small open meadow in forest, on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  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
  CHSC96548  Carex gracilior L. P. Janeway 2006-5-24 8631 Yuba Northern Sierra Nevada Foothills. South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. 483 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
  SEINET7560142 Image available Carex gracilior L. P. Janeway 2006-5-24 8631 Yuba Oregon House 7.5' Quad. Northern Sierra Nevada Foothills. South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. 483 Comment
  CHSC106655  Carex hirtissima Peter F. Zika 2010-6-22 24979 Yuba Northern Sierra Nevada Highlands (n SNH); W side of Challenge Cut-off, 2.5 air km NE of Brownsville.. 755 Comment
  CHSC63193  Carex hirtissima Lowell Ahart 1994-6-27 7386 Yuba Along the south side of a small stream, east of the logging road, east of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  CHSC63290  Carex hirtissima Lowell Ahart 1994-6-5 7304 Yuba On the south side of Costa Creek, on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 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
  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
  SEINET3450853  Carex hirtissima Unknown 2003-7-6 10359 Yuba Dobbins, Dobbins, about 5 air miles north, east of the power line, about 60 yards northwest of Fountain Hill Road 830 Comment
  SEINET7485288 Image available Carex hirtissima Peter F. Zika 2010-1 24979 Yuba W side of Challenge Cut-off, 2.5 air km NE of Brownsville, northern Sierra Nevada Highlands 755 Comment
  CHSC96914  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
  CHSC63195  Carex lemmonii Lowell Ahart 1994-6-27 7387 Yuba Along the south side of a small stream, east of the logging road, east of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  JEPS95507  Carex lemmonii Lowell Ahart 1994-6-27 7387 Yuba 4 mi NE of, E of the logging road, E of Schwartz Meadow, E side of La Porte Road Strawberry Valley 1219 Comment
  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
  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
  UCD140834  Carex senta Holida Matchett 1965-5-1 80 Yuba 10 miles west of Strawberry Valley on Lost Creek. 609 Comment
  JEPS113713  Carex stipata var. stipata Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14298 Yuba On the south side of Hampshire Creek, on the southeast side of a large wet meadow, about 80 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills 1021 Comment
  CAS-BOT-BC117350  Carex stipata var. stipata Beecher Crampton 1966-6-14 7758 Yuba 1 mi E of Brownsville, La Porte Road. Comment
  CDA43057  Carex xerophila L. P. Janeway 2006-5-24 8619 Yuba Northern High Sierra Nevada Foothils.; East side of Ponderosa Way 1.3 km north of La Porte Road and Brownsville. Comment
  CHSC102954  Carex xerophila L. P. Janeway 2006-5-24 8619 Yuba Northern High Sierra Nevada Foothils. East side of Ponderosa Way 1.3 km north of La Porte Road and Brownsville. 686 Comment
  CHSC115874  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
  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
  JEPS122427  Carex xerophila Peter F. Zika with 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) Comment
  RSA0056156  Carex xerophila L. P. Janeway 2006-5-24 8619 Yuba Northern Sierra Nevada Foothills. East side of Ponderosa Way 1.3 km north of La Porte Road & Brownsville. 686 Comment
  SEINET12650009 Image available Carex xerophila L. P. Janeway 2006-1 8626 Yuba 604 Comment
  UCR261235  Carex xerophila Peter F. Zika, L. P. Janeway 2012-5-16 25871 Yuba Northern Sierra Nevada Range, foothill/highlands, just east of junction of Jiggs Road and Ponderosa Way, 3 air km west of Ruff Hill, Brownsvill 715 Comment
  UCD23259  Castilleja applegatei W. R. Powell 1968-5-15 1499 Yuba 2 miles NE of Dobbins on Fountain House Road. 792 Comment
  CHSC115303  Castilleja applegatei subsp. pinetorum Lowell Ahart 2015-5-9 20147 Yuba On the west side of the road, on the steep road cut, Highway 49, about one mile northeast of the intersection of Marysville Road and Highway 49, about 2 miles southwest of Camptonville. Mixed Evergreen Forest. 803 Comment
  UCD81500  Castilleja attenuata Christopher Michael Bronny 2009-4-1 12 Yuba Oat Hills' area of Sierra Nevada foothills. 173 Comment
  CHSC97645  Castilleja campestris subsp. campestris Lowell Ahart 2007-5-12 13816 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113627  Castilleja campestris subsp. campestris Lowell Ahart 2007-5-12 13816 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  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
  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
  UCD122592  Castilleja lineariloba Barbara Yungert 1974-4-25 89 Yuba SC-14 project area, Sierra Foothill Field Station. Comment
  JEPS123870  Castilleja pruinosa Lowell Ahart 2015-4-30 20128 Yuba About 3 miles (air) southeast of Challenge. Comment
  UC1281467  Ceanothus H. E. McMinn 1946-5-11 5506 Yuba road from Dobbins to Camptonville; road from Dobbins to Camptonville Comment
  UCD112044  Ceanothus cuneatus Christopher Mallek 2008-5-5 IC3- 16 Yuba Indiana Creek. 617 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
  RSA17724  Ceanothus diversifolius Elmer I. Applegate 1934-5-2 8891 Yuba Indian Valley region Comment
  CAS-BOT-BC50709  Ceanothus integerrimus L. S. Smith 1939-4-19 2815 Yuba Near Camptonville 609 Comment
  CAS-BOT-BC50710  Ceanothus integerrimus Alice Eastwood 1921-5-22 10561 Yuba Los Vergils Comment
  SEINET5339313  Ceanothus integerrimus D. Kaplan s.n. Yuba Dobbins, Ca., Hwy 49 roadside. 1067 Comment
  CAS-BOT-BC50586  Ceanothus lemmonii Lloyd W. Swift 1932-5-11 68193 Yuba Near Bullards Bar Dam 609 Comment
  CAS-BOT-BC50589  Ceanothus lemmonii Lester Rowntree 1941-5-14 s.n. Yuba On road between Dobbin and Camptonville Comment
  CAS-BOT-BC50590  Ceanothus lemmonii Alice Eastwood 1930-4-12 17930 Yuba Texas Hill Road Comment
  CHSC112855  Ceanothus lemmonii L. P. Janeway 2014-4-24 11231 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  RSA517189  Ceanothus lemmonii T. C. Fuller, G. D. Barbe 1981-6-22 s.n. Yuba 1.4 miles SW of Bullards Bar Dam on road to Challenge, alt 2000ft 610 Comment
  SJSU14260  Ceanothus lemmonii N. A. Hopkins 1989-4-28 1484 Yuba by Ridge Rd to Allegheny c. 3 mi off Hwy 49 914 Comment
  UC410448  Ceanothus lemmonii Alice Eastwood 1930-4-12 17930 Yuba Texas hill rd Comment
  UC634626  Ceanothus lemmonii H. L. Mason 1927-5-11 3723 Yuba near Dobbins 457 Comment
  UCD112077  Ceanothus lemmonii Beecher Crampton 1966-6-14 7761 Yuba 1 mile west of Brownsville. Comment
  UCD112171  Ceanothus lemmonii Kathleen Keliher 1974-5-13 102 Yuba Near Dry Creek, just above waterfalls, ca. one half mile from station boundry, Sierra Foothill Field Station. 182 Comment
  CAS-BOT-BC51993  Ceanothus prostratus Brighton C. Cain 1925-8-16 39 Yuba Wilson's Log Cabin at junction of road from Marysville and Nevada City to Downieville Comment
  CAS-BOT-BC51994  Ceanothus prostratus Milo S. Baker 1941-6-19 9964 Yuba Roadside between Brownsville and La Porte 1371 Comment
  JEPS113487  Centaurium muehlenbergii 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
  JEPS46985  Centaurium muehlenbergii H. M. Hall 1914-8-2 9834 Yuba Marysville Comment
  UC878317  Centaurium muehlenbergii Alice Eastwood 1913-7-3 3411 Yuba Wheatland 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
  CHSC47411  Centaurium tenuiflorum Lowell Ahart 1981-6-13 2856 Yuba Along the banks of a small stream, west of McGinn Hill, east of Loma Rica. 304 Comment
  CHSC96870  Centaurium tenuiflorum Lowell Ahart 2007-6-30 14228 Yuba Sides of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  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
  JEPS114056  Centromadia fitchii Robert E. Preston 2007-9-21 2578 Yuba 3.5 mi S of Olivehurst, at jct Plumas-Arboga Rd and Old Marysville Rd. Comment
  JEPS120986  Centromadia fitchii Lowell Ahart 2013-11-30 19311 Yuba on N side of Dry Creek, below the high water line of Collins Lake, about 300 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  CAS-BOT-BC288822  Centromadia fitchii Mrs. H. C. Cantelow 1940-5-13 3060 Yuba E of Marysville on road to Grass Valley Comment
  JEPS113633  Centunculus minimus Lowell Ahart 2007-5-12 13810 Yuba Bottom of a scraped area, about 30 feet west of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC46538  Cephalanthera austiniae Lowell Ahart 1974-5-29 457 Yuba About 1 mile north of Challenge. 914 Comment
  JEPS125922  Cephalanthera austiniae D. W. Taylor 2001-6-19 17796 Yuba Ca 3 air miles SW of Union Hill, along Forest Road 20N35 tributary to Brush Creek near Diamond Ravine. Comment
  CHSC78137  Cerastium glomeratum Lowell Ahart 2000-6-11 8464 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
  RSA715478  Cerastium glomeratum L. Ahart 2005-3-11 11605 Yuba West of a large rock outcrop, about 1/2 mile W of Marysville Road, about 1/2 mile N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile N of Loma Rica Road, about 5 miles (air) NE of Loma Rica. 386 Comment
  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
  CHSC45964  Cercocarpus betuloides Lowell Ahart 1977-4-18 1314 Yuba Along Dry Creek, about 1 mile south of the Collins Lake Dam. 91 Comment
  CAS-BOT-BC140761  Chamaebatia foliolosa Elmer I. Applegate 1934-5-2 8896 Yuba Near Indian Valley Comment
  CHSC11351  Chamaebatia foliolosa Lowell Ahart 1968-5-15 Yuba Near Bullards Bar Dam. 914 Comment
  SEINET7073622  Chamaebatia foliolosa A. G. Vestal 1955-5-21 s.n. Yuba About 17.8 miles east of Oroville on Forbestown Road. UTM Zone 10, 647812mE, 4376141mN. Coordinate datum: NAD27. Comment
  UCD112923  Chamaebatia foliolosa Collector unknown 1918-1 s.n. Yuba Mountain Misery. Comment
  UCD112934  Chamaebatia foliolosa Kathleen Keliher 1975-5-6 90 Yuba Near Forbestown Road, 30 meters from La Porte Road, 1 mile east of Woodleaf. 929 Comment
  UCR206954  Chamaebatia foliolosa George K. Helmkamp, E. A. Helmkamp 2009-5-28 14826 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 Comment
  CHSC69139  Chamaesyce maculata Lowell Ahart 1997-8-7 7806 Yuba On the north side of New York Flat Road, about one mile northwest of La Porte Road, about 1 mile north of Brownsville. 731 Comment
  JEPS102535  Chamaesyce maculata Lowell Ahart 2001-11-2 9399 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  JEPS94623  Chamaesyce maculata Lowell Ahart 1997-8-7 7806 Yuba on n side of New York Flat Road about 1 mi nw La Porte Road (about 1 mi n of Brownsville) 731 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
  CHSC78142  Chamaesyce ocellata subsp. ocellata Lowell Ahart 2000-6-11 8469 Yuba On the west side of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 152 Comment
  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
  CDA42981  Chamaesyce serpillifolia subsp. serpillifolia L. Ahart 2013-11-3 19299 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. Comment
  CHSC113181  Chamaesyce serpillifolia subsp. serpillifolia Lowell 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
  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
  CHSC97707  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2007-11-8 14580 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  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
  JEPS121318  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2013-11-30 19299 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
  SBBG128777  Chamaesyce serpillifolia subsp. serpillifolia L. Ahart 2013-11-30 19299 Yuba sides of a deep wash (Willow Glen Crk), NW of Dry Crk, below high water line of Collins Lake, ca. 100 yards N of Marysville Rd, ca. 2 1/2 mi W of Oregon House 356 Comment
  JEPS35374  Cheilanthes gracillima G. E. Davenport 1877-1 Yuba Comment
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Jun 28 2010
  SEINET11711581  Cheilanthes gracillima E. O. Pelton 1878-1 s.n. Yuba no further locality Comment
  UC1776782  Chenopodium botrys G. Douglas Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3036 Yuba 1.4 miles west of New Bullards Bar Dam, between Log Cabin and Camptonville 609 Comment
  CAS-BOT-BC205805  Chlorogalum angustifolium James R. Shevock; Bob Holland 1985-5-6 11125 Yuba Sacramento Valley. Beale Air Force east of Marysville 40 Comment
  SEINET4566903 Image available Chlorogalum angustifolium James R. Shevock, Bob Holland 1985-1 11125 Yuba Sacramento Valley. Beale Air Force east of Marysville. Pools adjacent to runway. 40 Comment
  CAS-BOT-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
  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
  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
  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
  RSA750426  Chondrilla juncea George K. Helmkamp, E. A. Helmkamp 2008-9-18 14130 Yuba Bullards Bar Dam, along Marysville Road, 6 miles southwest of its junction with CA-49 616 Comment
  CAS-BOT-BC36351  Chrysolepis sempervirens Alice Eastwood 1918-4-7 6804 Yuba on Hills above North Fork & Yuba Rivers 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
  SEINET12196708  Clarkia gracilis F. H. Utech 1990-6-5 90 -863 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  CAS-BOT-BC172049  Clarkia gracilis subsp. gracilis Lowell Ahart 1981-6-13 2846 Yuba Near McGinn Hill, Loma Rica, Sierra Nevada 300 Comment
  RSA0060032  Clarkia gracilis subsp. gracilis Harlan Lewis, M. Lewis, M. Roberts 1951-5-19 820 Yuba 2.3 mi. east of Oregon House. Comment
  SJSU10991  Clarkia gracilis subsp. gracilis J. B. Willis Jr. 1969-4-27 70 Yuba S bank Yuba R on old stage rd to Timbuctoo just off Hwy 20, 18 mi E of Marysville Comment
  RSA0004430  Clarkia mildrediae L. P. Janeway 1995-7-15 4854 Yuba Inner canyon of Slate Creek, 3 mi northeast of Strawberry Valley; along Road 10N35 2.15 mi northeast of Road 20N04. Southwest facing road cut bank through greenstone and metamorphic rocks. 1006 Comment
  JEPS126006  Clarkia mildrediae subsp. lutescens D. W. Taylor 2001-6-20 17797 Yuba Ca 2 air miles SW of Union Hill; creek along Forest Road 20N06 t0.4 miles E of the junction with Forest Road 20N35, in the canyon of Rock Creek. Comment
  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
  CAS-BOT-BC163417  Clarkia purpurea subsp. quadrivulnera Lillian S. Mott 1965-4-21 LM 6548 Yuba Hiway 20 to Marysville Comment
  SEINET7042643  Clarkia purpurea subsp. quadrivulnera A. G. Vestal 1963-5-30 s.n. Yuba Roadside and field 5.3 miles north of Dry Creek bridge. Oregon House quadrangle UTM Zone 10, 641767mE, 4353215mN. 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
  UCD105014  Clarkia stellata L. P. Janeway; Loren Gehrung, Karen Lee, Marcile Sigler, Cliff S 1993-6-15 4384 Yuba 1.3 miles E of Woodleaf, 1.2 miles SW of Clipper Mills; uppermost drainage of Slapjack Creek. 1043 Comment
  UCR196982  Clarkia virgata George K. Helmkamp, E. A. Helmkamp 2008-5-20 13467 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
Read comments
Jun 29 2014
  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
  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
  JEPS18883  Collinsia sparsiflora var. collina Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1956-4-19 5618 Yuba 0.5 mi. n. Dobbins Ranger Station (CA State Dept. of Forestry) (along rd. from Oregon House to Dobbins) 548 Comment
  CHSC47689  Collinsia tinctoria Lowell Ahart 1981-6-13 2844 Yuba North-east side of McGinn Hill, east of Loma Rica. 274 Comment
  JEPS6367  Collinsia tinctoria Rimo Bacigalupi and L. R. Heckard 1952-6-20 3755 Yuba 1.5 mi due s Brownsville (along rd from Brownsville to Oregon House, just n of Washington Mill) 609 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
  UCD126194  Convolvulus arvensis G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12839 Yuba Northern Sierra Nevada Mountains: along Hwy. CA-49, 0.5 mile south of Camptonville. 817 Comment
  SEINET7134343  Convolvulus arvensis J. Ridley 1959-4-19 21 Yuba 1 mile east of Smartville in open field on north side of highway 20 61 Comment
  JEPS124143  Conyza canadensis Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20638 Yuba Below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CAS-BOT-BC288971  Conyza floribunda Lowell Ahart 1980-6-19 2392 Yuba Along La Porte Rd, near Rackerby 320 Comment
  CHSC39279  Cordylanthus tenuis subsp. tenuis Lowell Ahart 1983-8-10 4271 Yuba 4 miles south-east of Challenge. 1000 Comment
  JEPS95066  Cordylanthus tenuis subsp. tenuis Lowell Ahart 1997-8-7 7813 Yuba 3 air mi se of Challenge (on n. side of dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  JEPS95144  Cordylanthus tenuis subsp. tenuis Lowell Ahart 1997-8-7 7813 Yuba 3 air mi se of Challenge (on n. side of dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  SEINET12765115  Cordylanthus tenuis subsp. tenuis Lowell Ahart 1997-8-7 7813 Yuba Peterson Ridge Road, about 3 miles (air) southeast of Challenge.; 0 762 Comment
  CAS-BOT-BC209439  Cornus nuttallii Lloyd W. Swift 1932-5-12 57 Yuba Plumas National Forest. Clipper Mills 1066 Comment
  CDA38547  Cornus nuttallii T. C. Fuller 1961-9-21 7028 Yuba Moonshine Ridge, ca. 5 mi. west of Camptonville. 0 Comment
  CAS-BOT-BC212156  Cornus sericea Beecher Crampton 1966-6-14 7739 Yuba 1 mile east of Brownsville, La Porte Road 731 Comment
  UC1330014  Cornus sericea subsp. sericea Beecher Crampton 1966-6-14 7739 Yuba 1 mi. e. Brownsville (La Porte Rd.) Comment
  UCD33104  Cornus sericea subsp. sericea Beecher Crampton 1966-6-14 7739 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  CHSC69138  Cornus sessilis Lowell Ahart 1997-8-7 7821 Yuba On sides of small stream, a branch of Little Oregon Creek, on the south side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  JEPS127129  Cornus sessilis Lowell Ahart 2016-9-9 21345 Yuba After crossing Slate Creek on Old County Road to Scales, take first road to the right and go about 1/2 mile near Stowman Ravine, about 3 miles (air) southwest of Poverty Hill mine, about 8 miles (air) southwest of La Porte. Comment
  JEPS95002  Cornus sessilis Lowell Ahart 1997-8-7 7821 Yuba about 3 air mi se of Challenge (on sides of stream-a branch of Little Oregon Creek, on s side of the dirt road, Peterson Ridge Road); branch of Little Oregon Creek, Peterson Ridge Road 762 Comment
  SJSU10212  Cornus sessilis C. W. Sharsmith 1983-6-7 8793 Yuba Rose Ranch c. 4 mi NE of Strawberry Valley (Yuba Co) on Quincy-La Porte Rd; Yuba & Sierra county boundary 1432 Comment
  CHSC90487  Crassula connata Lowell Ahart 2005-3-11 11607 Yuba Large rock outcrop, south slope, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 395 Comment
  CHSC90337  Crassula tillaea Lowell Ahart 2005-3-11 11597 Yuba On the west side of the poor dirt road, about 1/2 mile west of Marysville Road, about 1/4 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/4 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 344 Comment
  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
  CHSC108328  Crucianella angustifolia Lowell Ahart 2011-6-7 17411 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
  UC1254613  Crucianella angustifolia Beecher Crampton 1967-5-17 7945 Yuba 0.5 mi w Timbuctoo Comment
  SEINET7072976  Crucianella angustifolia W. P. Vestal 1963-5-29 s.n. Yuba Olivehurst-Smartville Road about 0.4 mile southwest of paved road from Beale Air Force Base toward Smartville. Comment
  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
  CHSC108223  Cryptantha flaccida Lowell Ahart 2011-6-7 17386 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS118091  Cryptantha flaccida Lowell Ahart 2011-6-7 17386 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CAS-BOT-BC80750  Cupressus macnabiana C. B. Wolf; E. R. Johnson 1934-10-3 6152 Yuba Sierra Nevada Foothills, Texas Hill, approx. 2 mi. W., of Dobbins 548 Comment
  CAS-BOT-BC80751  Cupressus macnabiana C. B. Wolf; E. R. Johnson 1934-10-4 6157 Yuba Sierra Nevada Foothills, N. side Indiana Creek, 1 7/10 mi. W. of Indiana Ranch 548 Comment
  CAS-BOT-BC80753  Cupressus macnabiana C. B. Wolf; E. R. Johnson 1934-10-3 6151 Yuba Sierra Nevada Foothills, Texas Hill, approx. 2 mi. W., of Dobbins 548 Comment
  NY16691  Cupressus macnabiana A. Eastwood 1930-4-12 7931 Yuba This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  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
  RSA17597  Cupressus macnabiana C. B. Wolf, E. R. Johnson 1934-10-4 6157 Yuba N side of Indiana Creek, 1.7 miles W of Indiana Ranch. Sierra Foothills. 549 Comment
  UC699597  Cupressus macnabiana Richard Sias 1945-3-9 Yuba Challenge Challenge (sw slope of rocky ridge) 914 Comment
  UCD110843  Cupressus macnabiana Christopher Mallek 2008-1 s.n. Yuba Bald Mountain. 935 Comment
  NY16724  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
  SEINET10531481  Cupressus macnabiana Carl B. Wolf, E. R. Johnson 1934-10-3 Wolf 2116 Yuba Sierra Nevada Foothills, Texas Hill, approx. 2 mi W of Dobbins. Upper sonoran:- Yellow Pines. Sun. Sterile rocky soil (granitic). 550 Comment
  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
  UCD126298  Cuscuta howelliana F. T. Griggs 1978-5-19 s.n. Yuba near western margin of Beale Air Force Base, along Erle Road, 3.5 miles east of Lindhurst Road. Comment
  CDA33432  Cuscuta japonica Todd Quist & Steve Andersen 2008-12-1 PDR# 1295535 Yuba Marysville; 5667 Tish Circle. 0 Comment
  CDA41307  Cuscuta japonica J. Deviney, Anderson, Umino 2005-8-3 PDR 1295323 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
  JEPS115023  Cuscuta pentagona Lowell Ahart 2007-11-1 14536 Yuba On Xanthium strumarium, on the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  RSA727526  Cuscuta pentagona L. 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. 74 Comment
  CHSC47674  Cuscuta subinclusa Lowell Ahart 1989-9-3 6386 Yuba On the west side of Ponderosa Way, west of the Brownsville Dump, about 1 mile south-west of Brownsville. 609 Comment
  UCD119167  Cynoglossum grande Kathleen Keliher 1975-5-15 108 Yuba Along Cleaveland Road, 3 miles east of Camptonville. 914 Comment
  CHSC108211  Cynosurus echinatus Lowell Ahart 2011-6-7 17429 Yuba East of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS118672  Cynosurus echinatus L. P. Janeway 2011-7-5 10492 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
  POM319499  Cynosurus echinatus Patricia Wilder 1971-6-23 5200 Yuba West outskirts of the town of Challenge in a vacant lot; 20 miles east of Oroville. 762 Comment
  UCD60177  Cynosurus echinatus Beecher Crampton 1965-6-17 7382 Yuba 2 miles south Brownsville, Willow Glen Road. 792 Comment
  CHSC76298  Cyperus difformis Lowell Ahart 1999-9-17 8238 Yuba Rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  JEPS64101  Cyperus eragrostis W. L. Jepson 1934-7-29 16760 Yuba Smartsville Comment
  SEINET10585760  Cyperus eragrostis Lowell Ahart 2007-11-1 Ahart 14540 Yuba T18N, R8E, southwest 1/4 Section 3. On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  CHSC83031  Cyperus erythrorhizos Lowell Ahart 2002-10-8 9945 Yuba On the edge of a pond, about 100 yards north of Long Ravine Road, about 300 yards southeast of the intersection of Camp Far West Road and Long Ravine Road there is a poor gate on the north side of the road, north of Camp Far West Reservoir. 121 Comment
  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
  CHSC23371  Cyperus flavescens Lowell Ahart 1975-9-11 Yuba Pasture on the Eugene Ahart Ranch in Marysville. 30 Comment
  JEPS95882  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
  SEINET4896991  Cyperus iria L. Ahart 1999-9-5 8197 Yuba 5 miles NE of Marysville. Legal: T16N R4E 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
  CDA38966  Cyperus niger L. Ahart 1999-9-17 8256 Yuba Sam Shintaffer Farm, on the west side of Kimball Lane, near the intersection of Kimball Lane and Hallwood Boulevard, about 3/4 mile south of Sam Shintaffer s rice dryer, about 4 1/4 miles (air) northeast of Marysville. Comment
  SEINET13709327  Cyperus niger Lowell William Ahart, Lowell William Ahart 1999-1 8256 Yuba Cyperus, 4.25 Air Mi NE Marysville Comment
  RSA299224  Cyperus rotundus L. Ahart 1978-10-28 s.n. Yuba H and 13th streets, Marysville Comment
  SEINET9797707 Image available Cyperus strigosus Richard Carter 2006-7-31 Yuba 12.5 mi ENE Marysville jct. Hwy CA 20 and Hwy CA 70, by Hwy CA 20 Comment
  SEINET5327050  Cytisus scoparius M. J. Williams 1967-5-14 s.n. Yuba Camptonville 914 Comment
  CAS-BOT-BC190488  Dactylis glomerata Barbara T. Keller 1975-6-10 1506 Yuba Challenge Experimental Forest on La Porte Road near Challenge. 762 Comment
  CAS-BOT-BC190489  Dactylis glomerata Lowell Ahart 1979-6-25 s.n. Yuba 1 mile south of Challenge. 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
  UCR206946  Dactylis glomerata George K. Helmkamp, E. A. Helmkamp 2009-5-28 14834 Yuba Sierra Nevada Mountains Foothills, along CA-49, 2.2 miles north of the Camptonville exit 811 Comment
  RSA790265  Damasonium californicum James R. Shevock, Robert Holland 1985-5-6 11132 Yuba Beale Air Force Base E of Marysville. Pools adjacent to runway. 40 Comment
  CAS-BOT-BC189855  Danthonia californica Lowell Ahart 1979-6-25 s.n. Yuba 2 miles east of Challenge. 700 Comment
  CDA31645  Danthonia californica D. Wilson 2008-6-3 PDR# 147085 Yuba Oregon House, 9448 Rice s Texas Hill Rd. near Tehama Way. 0 Comment
  CDA31642  Danthonia californica var. americana T. C. Fuller 1971-6-13 19889 Yuba East side of Lake Francis, Lake Francis Rd., 1 mile southeast of Dobbins. 0 Comment
  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
  CHSC84454  Danthonia californica var. americana Lowell Ahart 2003-7-6 10368 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
  CHSC95029  Danthonia californica var. americana L. P. Janeway 2006-5-24 8615 Yuba Northern High Sierra Nevada Foothills. Along Ponderosa Way 1.3 road km southeast of Robinson Mill Road; 1.3 air km southeast of Robinson Mills and Forbestown Road. Moderate slope, south-facing. 771 Comment
  JEPS122453  Danthonia californica var. americana L. P. Janeway 2014-6-26 11421 Yuba Northern High Sierra Nevada. Plumas National Forest; small ephemeral meadow on a flattish bench at head of ephemeral northeastern tributary to Little Oregon Creek; 1.9 air km south-southeast of Pike County Peak; 0.24 km northeast of Oregon Hill Road, 0.15 km south of Peterson Ridge Road. Quad: Challenge 7.5'. Comment
  UC1153912  Danthonia californica var. americana Beecher Crampton 1957-6-5 4159 Yuba 1.3 mi e Oregon House store Comment
  UCD60689  Danthonia californica var. americana Beecher Crampton 1957-7-5 4159 Yuba 1.3 miles east of Oregon House Store. 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
  UCD61333  Danthonia unispicata W. R. Powell 1966-5-18 1274 Yuba 3/4 miles east of Lake Mildred, 1 1/2 miles NNE of Oregon House. 487 Comment
  UCD127493  Daucus pusillus Barbara Yungert 1974-5-13 148 Yuba north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  SEINET7073613  Delphinium gracilentum 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
  UC635338  Delphinium gracilentum H. L. Mason 1927-5-11 3732 Yuba near Dobbins 457 Comment
  CAS-BOT-BC8792  Delphinium gracilentum B. T. Keller 1975-6-10 1518 Yuba Willow Glen Road, from Stanfield Hill to Brownsville, 11.5 mi. N of Junct. of Willow Glen Road & Marysville Road Comment
  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
  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
  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
  UCD96546  Delphinium patens W. R. Powell 1968-5-15 1497 Yuba On Fountain House Road, 2 miles northeast of Dobbins. 792 Comment
  POM270647  Delphinium patens H. L. Mason 1927-5-11 3732 Yuba Near Dobbin. 457 Comment
  CAS-BOT-BC116483  Delphinium patens subsp. patens Gordon H. True 1968-5-6 4229 Yuba Near Gales Orchard ca. 6 miles east of Camptonville 1249 Comment
  CAS-BOT-BC122010  Delphinium variegatum Gordon H. True 1963-4-23 1197 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Highway 30 Comment
  SEINET5718467 Image available Delphinium variegatum Peter Stekel 1974-1 111 Yuba Beside dirt road, 5.3 miles NW of University of California Sierra Foothills Range Field Station.; UC Foothill Field Station 457 Comment
  CAS-BOT-BC16949  Delphinium variegatum subsp. variegatum P. H. Raven 1953-5-9 5484 Yuba 3.7 miles from Browns Valley on road to Challenge Comment
  SEINET4566882  Deschampsia danthonioides A. Tiehm 1975-1 645 Yuba U.C. Sierra Foothill Field Station 274 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
  CHSC44563  Deschampsia elongata Lowell Ahart 1979-6-25 1940 Yuba In a logged over area, about 1 mile south of Challenge. 640 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
  CDA31979  Descurainia sophia L. Ahart 2007-5-12 13782 Yuba Along road to the power towers, about 20 yards south of the first power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. Comment
  CHSC97442  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
  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
  UCD95518  Dicentra formosa Kathleen Keliher 1975-4-30 78 Yuba Along Marysville Road near Oregon Creek. 762 Comment
  CAS-BOT-BC402378  Dicentra formosa subsp. formosa Herbert L. Mason 1927-5-11 3734 Yuba Near Bullards Bar 609 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
  RSA653950  Dichanthelium acuminatum var. fasciculatum Beecher Crampton 1966-6-14 7745 Yuba 1 mile east of Brownsville on La Porte road. 732 Comment
  UC592761  Dichelostemma capitatum Carl B. Wolf 1937-6-11 Yuba 1.6 mi nw Stanfield Hill (along a fork of s Honcut Creek); Sierra Nevada Foothills, Honcut Creek 304 Comment
  UCD112037  Dichelostemma capitatum Christopher Mallek 2008-5-5 IC3- 18 Yuba Indiana Creek. 617 Comment
  UCR169023  Dichelostemma capitatum David Charlton 2005-5-16 8016 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  UCD139422  Dichelostemma capitatum Craig Martz; Richard Sannar 1982-3-25 42 Yuba along both sides of Hammonton-Smartville Road, 1 mile east of north entrance to Beale AFB. 45 Comment
  CHSC100774  Dichelostemma capitatum subsp. capitatum L. P. Janeway 2008-5-11 9358 Yuba Northern High Sierra Nevada. About 0.8 km north-northeast of Challenge; Golden Gate Ravine side of the ridge between that and Jordan Creek; west side of Road 19N04 1.1 km north-northwest of Challenge-La Porte Road. At top of dry northwest-sloping swale. 1012 Comment
  CHSC118503  Dichelostemma capitatum subsp. capitatum L. P. Janeway 2016-5-11 11959 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
  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
  CHSC59577  Dichelostemma capitatum subsp. capitatum H. E. Mac Lennan 1992-4-15 17 Yuba 20 air miles se of Oroville. 518 Comment
  SEINET13276746 Image available Dichelostemma capitatum subsp. capitatum George K. Helmkamp 2014-1 22767 Yuba Sierra Nevada Foothills: Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville (Smartsville 7.5' Q.) 264 Comment
  RSA333563  Dichelostemma capitatum subsp. capitatum Craig Martz, Richard F. Sannar 1982-3-25 42 Yuba Along both sides of Hammonton-Smartville Road, 1 mile E of N entrance to Beale AFB. 150 Comment
  SEINET8476503  Dichelostemma capitatum subsp. capitatum O. Reifschneider 1961-5-27 s.n. Yuba Yuba Pass Road. Comment
  UCD148231  Dichelostemma lacuna-vernalis Robert E. Preston 2013-3-16 2892 Yuba Along Hammonton-Smartville Rd, 2.4 mi E of Doolittle Drive. 63 Comment
  CHSC108193  Dichelostemma multiflorum Lowell Ahart 2011-6-7 17420 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC97503  Dichelostemma multiflorum Lowell Ahart 2007-5-14 13885 Yuba 60 yards northeast of the gate, about 20 yards north of the power tower, about 70 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  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
  UC1133992  Dichelostemma multiflorum H. S. Yates 1933-5-23 3626 Yuba 2 mi w Cabbage Patch; Smartsville Quad. 91 Comment
  UCR231312  Dichelostemma multiflorum George K. Helmkamp, E. A. Helmkamp 2011-5-6 17189 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.9 mile west of the junction at Camp Far West Reservoir 65 Comment
  CAS-BOT-BC500915  Dichelostemma multiflorum Lewis S. Rose 1940-5-28 40405 Yuba Dobbins 518 Comment
  SEINET3132583  Dichelostemma multiflorum L. S. Rose 1940-5-28 40405 Yuba Dobbins 518 Comment
  SEINET7042609  Dichelostemma multiflorum A. G. Vestal 1963-5-29 s.n. Yuba Olivehurst-Smartville Road [presently Hammonton- Smartville Road]. 0.4 mile west of road south to Beale Air Force Base [Smartville Road]. Smartville quadrangle UTM Zone 10, 646242mE, 4339869mN. Comment
  SEINET7042626  Dichelostemma multiflorum A. G. Vestal 1963-5-7 s.n. Yuba Ca. 3.5 miles north of Wheatland. Camp Far West quadrangle UTM Zone 10, 640908mE, 4323324mN. Comment
  SEINET7042659  Dichelostemma volubile A. G. Vestal 1963-5-30 s.n. Yuba Turn off to Timbuctoo at Yuba river. Smartville quadrangle UTM Zone 10, 644012mE, 4342272mN. Comment
  SJSU9998  Dichelostemma volubile J. B. Willis Jr. 1968-4-27 71 Yuba S bank Yuba River on old stage rd to Timbucktoo, 18 mi E of Marysville Comment
  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
  CHSC113174  Digitaria sanguinalis Lowell Ahart 2013-11-30 19302 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 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-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
  SJSU7702  Diplacus kelloggii J. B. Willis Jr. 1969-4-19 Yuba Marysville Rd 1.5 mi W of Oregon House Post Office 7.5 mi W of dobbins Comment
  CHSC47503  Diplacus torreyi Lowell Ahart 1980-6-19 2404 Yuba Growing on the east side of Petterson Ridge Road, about 3 1/2 miles south-east of Challenge. 762 Comment
  CAS-BOT-BC151635  Diplacus torreyi L. Beane; A. M. Vollmer 1951-7-1 192 Yuba Brownsville 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
  CHSC110135  Dittrichia graveolens M. S. Williams; T. M. Hanson 2012-10-31 Yuba Northern High Sierra Nevada. Plumas National Forest; approximately 1.3 air miles northeast of Challenge (1.7 road miles). 945 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
  CDA41425  Dopatrium junceum D. L. Wilson 1975-8-7 s.n. Yuba Ramirez Road, Marysville. 0 Comment
  JEPS108500  Downingia bicornuta var. bicornuta Lisa Schultheis 1996-5-23 304 -96 Yuba Beale Air Force Base. Comment
  UC718544  Downingia bicornuta var. picta Carl B. Wolf 1937-5-18 Yuba 2 mi s Marysville; Sacramento Valley 18 Comment
  CHSC97492  Downingia ornatissima var. ornatissima Lowell Ahart 2007-5-12 13785 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UC1283735  Downingia ornatissima var. ornatissima Beecher Crampton 1965-5-11 7320 Yuba 2.5 mi sw Browns Valley Comment
  UC1283737  Downingia pulchella Beecher Crampton 1965-5-11 7319 Yuba 2.5 mi sw Browns Valley Comment
  UC1283736  Downingia pusilla Beecher Crampton 1965-5-11 7321 Yuba 2.5 mi sw Browns Valley Comment
  CHSC84982  Draperia systyla Lowell Ahart 2003-10-11 10625 Yuba On the east margins of a gravel road to the Rose Ranch, about 100 yards west of the paved road to Scales, about 1/2 mile south of the Rose Ranch, about 5 miles (air) northeast of Strawberry Valley, about 7 miles (air) southwest of La Porte. 1219 Comment
  POM161767  Draperia systyla R. C. Bacigalupi 1927-7-2 1589 Yuba Highway to Downieville about 8 mi NE of Camptonville. Comment
  SJSU10221  Draperia systyla C. W. Sharsmith 1983-6-8 8802 Yuba Slate Cr at bridge-crossing of Scales & Quincy-La Porte Rds 1066 Comment
  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
  CHSC113662  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. 750 Comment
  JEPS122443  Drymocallis glandulosa var. reflexa L. P. Janeway 2014-5-12 11248 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Quad: French Corral 7.5'. Comment
  CAS-BOT-BC428064  Dudleya cymosa subsp. cymosa Barbara T. Keller 1975-6-10 1511 Yuba Willow Glen Road from Stanfield Hill to Brownsville, about 11.5 mi. north of junction of Willow Glen Road and Marysville Road. Comment
  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
  CHSC45550  Dysphania botrys Lowell Ahart 1977-11-13 1608 Yuba Near the edge of the road, west of the bridge across Slate Creek, about 5 miles east of Strawberry Valley. 914 Comment
  UCD67042  Echinochloa crus-galli G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12840 Yuba Northern Sierra Nevada Mountains: along Hwy. CA-49, 0.5 mile south of Camptonville. 817 Comment
  CAS-BOT-BC197247  Echinochloa muricata Lowell Ahart 1977-9-25 s.n. Yuba 2 mi. NE of Marysville 35 Comment
  CAS-BOT-BC208570  Echinochloa oryzoides Wm. F. Herrin 1920-10-1 s.n. Yuba Rice fields. Comment
  CDA19024  Eichhornia crassipes unknown 2000-11-14 PDR 116726 Yuba Widespread in 3 acres on East Park, Marysville. 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
  UCR169022  Eleocharis David Charlton 2005-5-16 8018 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  UCD80266  Eleocharis acicularis CNPS SN Foothill Team 2005-7-5 SNNR 0529 Yuba CDFG Daugherty Hill Wildlife Area. 289 Comment
  SEINET7583427 Image available Eleocharis acicularis Lowell Ahart 2000-6-11 8471 Yuba East side of small wash, west of Smartville Road, about 1/8 mile southwest of the intersection of Waldo Road and Smartville Road, about 8 miles (air) south of Smartville. 99 Comment
  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
  JEPS124315  Eleocharis acicularis var. acicularis Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20646 Yuba Below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. 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
  JEPS124314  Eleocharis atropurpurea Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20647 Yuba Below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  JEPS124266  Eleocharis bella Lowell Ahart 2015-11-19 20672 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  SEINET3441885  Eleocharis bella Unknown 2000-6-23 8507 Yuba Strawberry Valley, Strawberry Valley, about 3 miles northeast, about 100 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road 1210 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
  JEPS98721  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
  CHSC83029  Eleocharis engelmannii Lowell Ahart 2002-10-9 9950 Yuba Area south of a spring, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CAS-BOT-BC113345  Eleocharis engelmannii John Thomas Howell; Gordon H. True 1969-6-24 5098 Yuba Artificial lake ca. 1 mi NW of Spenceville (site) on Cox Creek. 152 Comment
  CAS-BOT-BC113033  Eleocharis macrostachya Gordon H. True; John Thomas Howell 1970-5-29 5423 Yuba Artificial lake ca. 1 mi. NW of Spenceville (site) on Cox Creek. 152 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
  JEPS98299  Eleocharis macrostachya Lowell Ahart 2000-7-13 8579 Yuba In a small meadow, on the south side of Ridge Road, about 1/4 mile west of Our House, about 2 miles (air) east of Celestial Valley, about 2 1/2 miles (air) southeast of Camptonville. 975 Comment
  JEPS98567  Eleocharis macrostachya Lowell Ahart 2000-6-11 8461 Yuba 6 mi (air) S of Smartville (on bottom of a deep wash, a N branch of Dry Creek, 100 yds W of Waldo Rd and Smartville Rd) 146 Comment
  CAS-BOT-BC113035  Eleocharis macrostachya W. V. Middlekauff 1954-9-11 s.n. Yuba 3 miles NW of Rio Oso Post Office. Comment
  CHSC83048  Eleocharis obtusa Lowell Ahart 2002-10-9 9973 Yuba Along Lost Creek, below the high water line of Sly Creek Reservoir, about 50 yards southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  UCR118905  Eleocharis obtusa Beecher Crampton 1966-6-14 7757 Yuba Central Sierra Nevada foothills, 1 Mile east of Brownsville on La Porte Road. 732 Comment
  CAS-BOT-BC113099  Eleocharis obtusa Beecher Crampton 1966-6-14 7757 Yuba 1 mile east of Brownsville, La Porte Road. Stony creek bed. Comment
  CHSC116335  Eleocharis pachycarpa Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20642 Yuba On the bottom of the outflow area at the bottom of Lake Francis Dam, Lake Francis, about 1 1/2 miles south of Dobbins. 479 Comment
  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
  CHSC78299  Eleocharis pachycarpa Lowell Ahart 2000-6-19 8490 Yuba Along a south branch of Dry Creek, on the south side of Marysville Road, about 1/4 mile west of the intersection of Marysville Road and Frenchtown Road, west of Oregon House, about 2 miles east of Collins Lake. 457 Comment
  JEPS103481  Eleocharis pachycarpa Lowell Ahart 2002-10-9 9949 Yuba Area S of a spring, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  SD131013  Eleocharis pachycarpa Gordon H. True, John Thomas Howell 1970-5-29 5422 Yuba Artificial lake ca. 1 mile northwest of Spenceville (site) on Cox Creek. In wet soul and shallow water at edge of lake. 152 Comment
  SEINET13710869  Eleocharis pachycarpa Lowell William Ahart, Lowell William Ahart 2000-1 8490 Yuba 2 Mi. E of Collins Lake (T17N, R6E, sec 3, NE 1/4) 1500 Ft. 457 Comment
  CDA2609  Eleocharis pachycarpa L. Ahart 2000-6-19 8490 Yuba Along a south branch of Dry Creek, on the south side of Marysville Road, about 1/4 mile west of the intersection of Marysville Road and Frenchtown Road, west of Oregon House, about 2 miles east of Collins Lake. Comment
  SEINET7586814 Image available Eleocharis pachycarpa Lowell Ahart 2000-6-19 8490 Yuba Along a south branch of Dry Creek, on the south side of Marysville Road, about 1/4 mile west of the intersection of Marysville Road and Frenchtown Road, west of Oregon House, about 2 miles east of Collins Lake. 457 Comment
  RSA0012078  Eleocharis palustris George K. Helmkamp, E. A. Helmkamp 2011-5-6 17206 Yuba junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg ) of Wheatland. 56 Comment
  UCD84798  Eleocharis quadrangulata Collector Unknown 2010-7-1 s.n. Yuba Marysville area. Comment
  CHSC78303  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
  CHSC78304  Eleocharis quinqueflora Lowell Ahart 2000-6-23 8506 A Yuba In a small meadow, about 100 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  CHSC78313  Eleocharis quinqueflora Lowell Ahart 2000-7-13 8578 Yuba In a small meadowl, on the south side of Ridge Road, about 1/4 mile west of Our House, about 2 miles (air) east of Celestial Valley, about 2 1/2 miles (air) southeast of Camptonville. 975 Comment
  JEPS98611  Eleocharis quinqueflora Lowell Ahart 2000-6-23 8506 Yuba Bog in a small meadow, about 80 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  UCR263568  Eleocharis quinqueflora Lowell Ahart 2000-6-19 8493 Yuba Sierra Nevada Mtns., about 100 yards north of New York Flat Road, about 1.25 miles (air) northeast of Brownsville, about 2.25 miles (air) west of Challenge 732 Comment
  POM319561  Elymus Patricia Wilder 1971-6-23 5198 Yuba About two miles southeast of Forbestown on Challenge Cut-off Road; West slope of the Sierra Nevada Mt. Range 762 Comment
  UCD62803  Elymus X hansenii Beecher Crampton 1957-6-5 4151 Yuba 1/2 mile W of Oregon House Post Office. 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
  UCD147098  Elymus elymoides var. elymoides Chuck Hughes 2013-5-16 382 Yuba Near margin of Camp Far West Reservoir. 95 Comment
  UCD61787  Elymus glaucus Barbara Yungert 1974-5-9 G- 10 Yuba Sierra Foothill Field Station. W of road to Englebright Reservoir. Comment
  UCD61799  Elymus glaucus Beecher Crampton 1971-6-18 8733 Yuba Sierra Foothill Range Field Station. Ca. 6 miles E of Browns Valley. Comment
  UCD61859  Elymus glaucus Beecher Crampton 1965-6-17 7375 Yuba Ca. 3/4 mile north of Stanfield Hill, Willow Glen Creek. 396 Comment
  CHSC108216  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
  UCD62507  Elymus multisetus Beecher Crampton 1957-6-5 4135 Yuba 7.5 miles northeast of town of Brown's Valley. Comment
  CHSC84144  Elymus stebbinsii subsp. septentrionalis Lowell Ahart 2003-7-2 10341 Yuba About 200 yards south of the 4-H Camp, on the west side of Oregon Hill Road, about 1/2 mile north of Marysville Road, about 2 miles (air) northeast of Dobbins. 815 Comment
  JEPS104068  Elymus stebbinsii subsp. septentrionalis Lowell Ahart 2003-7-2 10341 Yuba about 200 yds S of the 4-H Camp, on W side of Oregon Hill Road, about 1/2 mi N of Marysville Road, about 2 air mi NE of Dobbins 815 Comment
  SBBG121208  Epilobium L. Ahart 2007-5-12 13800 Yuba ca. 30 feet E of a culvert, ca. 50 yards N of the second power tower, ca. 400 yards N of Fruitland Rd, ca. 13 m NE of Marysville 28 Comment
  JEPS94446  Epilobium brachycarpum Lowell Ahart 1997-8-30 7876 Yuba about 3 air mi e of Challenge (on w side of the dirt road, in clear cut, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  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
  UCD105307  Epilobium brachycarpum G. K. Helmkamp; E. A. Helmkamp 2006-10-10 11529 Yuba Northern Sierra Nevada Mountains Foothills. Along Hwy CA-49 just N of the Nevada County line at the Middle Yuba River bridge. 451 Comment
  UCR179301  Epilobium brachycarpum George K. Helmkamp, E. A. Helmkamp 2006-10-10 11529 Yuba Northern Sierra Nevada Mountains Foothills, along Calif. Hwy 49 just north of the Nevada County line at the Middle Yuba River bridge 451 Comment
  UCR189621  Epilobium brachycarpum George K. Helmkamp, E. A. Helmkamp 2007-8-29 12843 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 1.2 miles southwest of Camptonville 701 Comment
  CHSC96939  Epilobium campestre Lowell Ahart 2007-6-30 14226 Yuba Bottom of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  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
  SBBG121611  Epilobium campestre L. Ahart 2007-6-30 14226 Yuba ca. 250 yards W of the power tower, ca. 100 yards N of Fruitland Rd, ca. 13 mi (air) NE of Marysville 29 Comment
  CHSC69141  Epilobium ciliatum subsp. ciliatum Lowell Ahart 1997-8-7 7818 Yuba On the bottom of a small stream, a branch of Little Oregon Creek, on the west side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  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
  JEPS94624  Epilobium ciliatum subsp. ciliatum Lowell Ahart 1997-8-7 7818 Yuba Peterson Ridge Rd. about 3 air mi se Challenge (on bottom and sides of small stream, a branch of Little Oregon Creek, on e side of dirt road) 762 Comment
  UCD80478  Epilobium ciliatum subsp. ciliatum CNPS SN Foothill Team 2005-7-5 SNNR 0467 b Yuba CDFG Daugherty Hill Wildlife Area. 278 Comment
  UCD80486  Epilobium ciliatum subsp. ciliatum CNPS SN Foothill Team 2005-7-5 SNNR 0473 b Yuba CDFG Daugherty Hill Wildlife Area. 280 Comment
  CHSC96979  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2007-8-7 14421 Yuba On the southwest part of Hampshire Creek Meadow, about 80 yards west of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS113482  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2007-6-30 14236 Yuba Near and west of new road pad, about 350 yards west of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS113484  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2007-6-30 14236 A Yuba West side of a new ditch, near and west of a new road pad, about 350 yards west of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC97228  Epilobium densiflorum Lowell Ahart 2007-6-22 14211 Yuba About 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  JEPS38236  Epilobium densiflorum W. L. Jepson 1934-7-29 16764 Yuba Smartsville Comment
  UCD106520  Epilobium minutum Barbara Yungert 1975-4-28 69 Yuba Sierra Foothill Field Station. 100 meters E of central picnic area, 60 meters from Yuba River, H 8-11 project area. 152 Comment
  JEPS113476  Epilobium torreyi Lowell Ahart 2007-5-12 13800 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CAS-BOT-BC57147  Equisetum hyemale subsp. affine Lowell Ahart 1977-4-17 s.n. Yuba About 3 miles south of Challenge 700 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
  CHSC69462  Eragrostis mexicana subsp. virescens Lowell Ahart 1997-8-13 7866 Yuba On th south side of Scott Forbes Road, 1/4 mile east of the intersection of Scott Forbes Road and Peoria Road, just east of Gray Drive, about 2 1/4 miles (air) east of Browns Valley. 91 Comment
  HSC9780  Eragrostis mexicana subsp. virescens T. F. Newman 1965-8-22 6559 Yuba Carnes Ranch, 10 mi. N of Marysville Comment
  SEINET3015267  Eragrostis mexicana subsp. virescens L. Ahart 1997-8-13 7866 Yuba On the south side of Scott Forbes Rd, 1.4 mi E of the intersection of Scott Forbes Rd and Peoria Rd., just E of Gray Drive about 2 1/4 mi 9air) E of Browns Valley. 91 Comment
  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
  CHSC113189  Eragrostis pilosa var. pilosa Lowell Ahart 2013-11-30 19303 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  JEPS113512  Eremocarpus setiger Lowell Ahart 2007-5-12 13790 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CAS-BOT-BC131511  Ericameria arborescens Carl B. Wolf; E. R. Johnson 1934-10-4 6153 Yuba Texas Hill, about 2 miles from Dobbins 457 Comment
  CAS-BOT-BC131512  Ericameria arborescens Carl B. Wolf; E. R. Johnson 1934-10-4 6153 Yuba Texas Hill, about 2 miles from Dobbins 457 Comment
  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
  JEPS118708  Ericameria parryi var. latior L. P. Janeway 2011-8-15 10653 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 km east of Dobbins, 2.1 air km south-southwest of Oregon Peak, 0.2 km north of Marysville Road. French Corral 7.5' quad. Comment
  JEPS95030  Erigeron petrophilus var. sierrensis Lowell Ahart 1997-8-7 7809 Yuba about 3 air mi se of Challenge (on n side of the dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  SEINET5499350  Eriodictyon californicum Unknown 1959-4-11 s.n. Yuba 5 miles E of Oroville, on US 40 alternate 244 Comment
  UCD168071  Eriogonum nudum var. nudum James Neilson 1961-10-16 464 Yuba 1/2 mile west of Brown's Valley Rd. (Exact location unknown. Coordinates estimated by label maker.) Comment
  CHSC69429  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-8-30 7875 Yuba In the gutter on the north side of Forbestown Road, just west of Costa Creek, about 2 1/2 miles (air) southeast of Forbestown. 853 Comment
  CHSC95067  Eriogonum umbellatum var. ahartii L. P. Janeway; David Toren, Dan Lubin, Erin Brandy 2006-7-17 8814 Yuba Northern High Sierra Nevada. Slope on east side above Indian Creek; 3.0 km south of Woodleaf and 2.8 km east of Challenge. Southwest-facing slope of rocky weathered serpentine. 815 Comment
  CHSC95082  Eriogonum umbellatum var. ahartii L. P. Janeway 2006-7-18 8815 Yuba Northern High Sierra Nevada. Along the '107' road, overlooking Golden Gate Ravine from the south; 2.4 km north-northeast of Challenge and 2.4 km southwest of Woodleaf. Small serpentine area along dirt road, northwest-facing. 937 Comment
  HSC96690  Eriogonum umbellatum var. ahartii L. P. Janeway, David Toren, Dan Lubin, Erin Brandy 2006-7-17 8814 Yuba N High Sierra Nevada, slope on E side above Indian Creek, 3 km. S of Woodleaf, 2.8 km. E of Challenge 815 Comment
  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
  JEPS95143  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
  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
  CAS-BOT-BC308242  Eriophyllum lanatum var. grandiflorum Lewis S. Rose 1940-5-28 40385 Yuba Browns Valley 60 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
  CHSC113674  Eriophyllum lanatum var. grandiflorum L. P. Janeway 2014-6-24 11416 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 480 m northeast of Marysville Road. 756 Comment
  CHSC45002  Eriophyllum lanatum var. grandiflorum Lowell Ahart 1979-6-25 1945 Yuba North of the dirt road, about 2 air miles east of Challenge. 640 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
  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
  UC1167729  Eryngium castrense Peter H. Raven with Otto T. Solbrig 1959-6-15 13225 Yuba 9.4 mi. s. Marysville (U.S. Hwy. 99E) Comment
  CDA18858  Eryngium castrense J. Horenstein 1999-6-9 s.n. Yuba NE of Cock's Creek, Spenceville Wildlife Area. 0 Comment
  UCD21177  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
  SEINET7075555  Eryngium pinnatisectum A. G. Vestal 1955-4-4 s.n. Yuba About 9 miles northeast of Marysville on Route 20. 39? deg. 13' 38" North Latitude, -121? deg. 24' 51" West Longitude. UTM Zone 10, 636890mE, 4342994mN. (NAD 27)]. [Coordinate Datum: WGS84/NAD83]. Comment
  CAS-BOT-BC54683  Erysimum capitatum Lewis S. Rose 1939-6-7 39241 Yuba North Fork of Feather River. 3 miles south of Pulga. 609 Comment
  CAS-BOT-BC54684  Erysimum capitatum Gordon H. True 1962-5-1 552 Yuba Sierra Nevada. On Comptonville-Downieville Highway. About 1 mile north of Comptonville. Comment
  CAS-BOT-BC54686  Erysimum capitatum Daniel Campbell 1974-6-10 s.n. Yuba Sierra Nevada. Highway 49, 1 mile south of Comptonville. Comment
  UCD114998  Erysimum capitatum var. capitatum Kathleen Kehiler 1975-5-15 113 Yuba base of steep road cut along Marysville Road near Bullards Bar Dam. 609 Comment
  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
  CHSC97039  Erythranthe bicolor B. Castro; Plumas NF/Feather River RD botanists 2005-6-6 1482 Yuba 3.0 km ENE of Challenge and 3.1 km NW of New Bullard's Bar Res., along USFS Rd 19N03 (from Woodleaf) overlooking Indian Creek. 838 Comment
  CHSC47495  Erythranthe breweri Lowell Ahart 1980-8-12 2562 Yuba Across Slate Creek, west of where Gold Run Creek flows into Slate Creek, east of Onion Creek, about 7 air miles south of La Porte. 1158 Comment
  CHSC90345  Erythranthe geniculata Lowell Ahart 2005-3-11 11608 Yuba West of a poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 395 Comment
  CAS-BOT-BC153600  Erythranthe moniliformis Mrs. Martin Goerges 1953-6-24 s.n. Yuba Lake Vera, North Fork, Yuba River Comment
  CHSC63177  Erythranthe primuloides Lowell Ahart 1994-6-27 7397 Yuba Near the east side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  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
  SBBG988  Erythronium multiscapideum H. and M. Dearing 1939-5-8 3295 Yuba New York Crk Comment
  CAS-BOT-BC502829  Erythronium multiscapideum Mrs. D. C. McGanney 1921-4-1 s.n. Yuba Smartville Comment
  CAS-BOT-BC502831  Erythronium multiscapideum Lowell Ahart 1982-5-8 3424 Yuba 4 miles east of Forbestown 825 Comment
  CAS-BOT-BC502832  Erythronium multiscapideum Volney Rattan 1880-1-1 s.n. Yuba Brownsville Comment
  CDA39344  Erythronium multiscapideum Yuba County School Children 1930-4-12 s.n. Yuba [No further data.] 0 Comment
  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
  UCD95379  Eschscholzia lobbii M. Sciuto-Creps 1998-4-26 32 Yuba 7 miles northeast of the town of Wheatland, in the property adjacent to the southeast end of Beale Air Force Base, about half a mile NE of Best Slough. Comment
  CDA4807  Euphorbia lathyris R. W. Nelson 1958-5-27 466 -58 Yuba 0 Comment
  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
  UCD169274  Euphorbia serpillifolia Lowell Ahart 2013-11-30 19299 Yuba Willow Glen Creek, northwest of Dry Creek, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  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
  CAS-BOT-BC312190  Eurybia radulina L. P. Janeway 1993-9-7 4590 Yuba About 3 mi. east of Woodleaf ca 3 mi. southwest of Clipper Mills, La Porte Ranger District, Woodleaf Compartment, Plumas National Forest 1043 Comment
  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
  CHSC97660  Fallopia convolvulus Lowell Ahart 2007-5-14 13842 Yuba East and west of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 20 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  CAS-BOT-BC278796  Festuca occidentalis Barbara T. Keller 1975-6-10 1510 Yuba Challenge Experimental Forest on La Porte Road near Challenge 762 Comment
  CHSC41203  Festuca occidentalis J. D. Jokerst 1984-7-5 2081 Yuba Canyon of Deadwood Creek between the creek and Weed Point. 883 Comment
  CHSC44567  Festuca occidentalis Lowell Ahart 1979-6-25 1938 Yuba About 1 mile south of Challenge. 640 Comment
  UCR258227  Festuca perennis George K. Helmkamp, Amy Barnes 2013-3-28 20255 A Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  JEPS100268  Festuca subulata Dean W. Taylor 2001-5-9 17641 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  UCD66499  Festuca subuliflora W. R. Powell 1966-5-19 1300 Yuba 5 1/2 miles s. e. Challenge 609 Comment
  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
  UCR169024  Filago gallica David Charlton 2005-5-16 8020 A Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  SEINET7042641  Filago gallica A. G. Vestal 1963-5-7 s.n. Yuba 5.2 miles southwest of Bangor. Loma Rica quadrangle UTM Zone 10, 632125mE, 4355120mN. Comment
  CHSC112857  Fragaria vesca L. P. Janeway 2014-4-15 11229 Yuba Northern High Sierra Nevada. Plumas National Forest; east edge of Milk Ranch Meadow; on a low gap between an unnamed tributary of Little Oregon Creek to the west and an unnamed tributary of New Bullards Bar Reservoir (North Yuba River) to the east; along an eastern extension of Fountain House Road. 739 Comment
  CHSC33580  Fragaria vesca M. S. Taylor 1981-4-22 3554 Yuba E side of Empire Rd, ca. 0.5 mi s of its jct with Laporte Rd, ca. 1 mi sw of Woodleaf. 975 Comment
  CAS-BOT-BC53654  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba along the left bank of the Yuba River, near bridge on road from Brown's Valley to Smartsville Comment
  CAS-BOT-BC53659  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1447 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-BC53665  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-BC53667  Frangula californica subsp. tomentella Carl B. Wolf 1931-3-26 1738 Yuba Yuba River on Browns Valley - Smartsville Road 152 Comment
  CAS-BOT-BC53668  Frangula californica subsp. tomentella Carl B. Wolf; E. R. Johnson 1934-10-4 6155 Yuba Sierra Nevada Foothills. Texas Hill, 2 mi. W. of Dobbins 457 Comment
  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
  LA207669  Frangula californica subsp. tomentella C. B. Wolf; 1927-11-5 1444 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  OBI6059  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba Browns Valley to Smartsville rd, 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
  SD22794  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
  CHSC110466  Frangula purshiana subsp. annonifolia L. P. Janeway 2013-7-24 11190 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow near headwaters of a northeastern tributary to Hampshire Creek, 1.8 km north of North Yuba River and 1.0 km east-northeast of Hampshire Creek Meadow. 1102 Comment
  JEPS127130  Frangula purshiana subsp. purshiana Lowell Ahart 2016-9-9 21346 Yuba After crossing Slate Creek on Old County Road to Scales, take first road to the right and go about 1/2 mile near Stowman Ravine, about 3 miles (air) southwest of Poverty Hill mine, about 8 miles (air) southwest of La Porte. Comment
  CHSC69149  Frangula rubra Lowell Ahart 1997-8-7 7822 Yuba On the east side of the dirt road, near an unnamed stream, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  CHSC112863  Frangula rubra subsp. obtusissima L. P. Janeway 2014-4-24 11234 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  CHSC113643  Frangula rubra subsp. obtusissima L. P. Janeway 2014-5-12 11252 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  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
  CHSC110321  Frangula rubra subsp. rubra L. P. Janeway 2013-6-7 11136 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
  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
  UC1123378  Fraxinus latifolia M. A. Elvin 1933-6-23 30 Yuba 1 mi w Hansonville; Smartsville Quad. 426 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
  CHSC89019  Fremontodendron californicum L. Hanson 1984-5-21 243 Yuba Plumas National Forest. Brownsville Dump. 457 Comment
  HSC86889  Fremontodendron decumbens J. D. Jokerst, L. Ahart 1984-3-20 1945 Yuba S of Brownsville dump, E of Ponderosa Way 100 meters, 0.65 mi. N of junction with La Porte Rd. Comment
  CAS-BOT-BC136095  Fritillaria affinis Volney Rattan 1880-1-1 s.n. Yuba Brownsville Comment
  CHSC100728  Fritillaria eastwoodiae L. P. Janeway 2008-5-11 9359 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-northwet of Challenge-La Porte Road. 1012 Comment
  CHSC112261  Fritillaria eastwoodiae Lowell Ahart 2013-4-23 18566 Yuba Mined area along Costa Creek, about 100 yards east of where the paved road crosses Costa Creek, about 2 1/2 miles (air) southeast of the Forbestown store. 851 Comment
  CHSC63299  Fritillaria eastwoodiae Lowell Ahart 1994-4-22 7289 Yuba On the north side of Costa Creek, on the north side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  CHSC74731  Fritillaria eastwoodiae B. Castro; L. P. Janeway 1991-4-17 440 A Yuba Ca 10 air mi SE of Challenge, ca 1.4 mi E of Dobbins; the southern most parcel of the Plumas NF. On W end of saddle to the top of the S-facing slope between two knolls off of USFS Rd 18N03, mostly on the S side of the road. 762 Comment
  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
  CAS-BOT-BC506160  Fritillaria micrantha Volney Rattan 1880-1-1 s.n. Yuba Brownsville Comment
  CAS-BOT-BC506163  Fritillaria micrantha Jokerst; Ahart 1984-3-20 JDJ 1946 Yuba East side of Ponderosa Road 0.3 mile south of its junction with Robinson Mill Road Comment
  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
  SEINET10469565  Fritillaria micrantha Mary Susan Taylor, L. Hanson 1981-4-15 Taylor 3539 Yuba T19N R6E center sec 34, Rackerby quad. In Brownsville along LaPorte-Quincy Rd (Marysville-LaPorte Rd), near its jct with Rackerby Rd about a block. Yellow Pine Forest; 2300 ft. 701 Comment
  SJSU8740  Fritillaria micrantha N. A. Hopkins 1980-4-12 966 Yuba Abernathy (Abranathy) Rd near its intersection with Forbestown-Woodleaf Rd c. 2-3 mi E of Forbestown 838 Comment
  SJSU8741  Fritillaria micrantha N. A. Hopkins 1980-4-13 968 Yuba 40' above McCabe Cr c. 3 airline miles W of Forbestown 548 Comment
  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
  CHSC100725  Fritillaria recurva L. P. Janeway 2008-5-11 9361 Yuba Northern High Sierra Nevada. In the northwestern head of Slapjack Creek; along Road 19N34, 1.3 road km southeast of Challenge-La Porte Road; about 1.2 km south-southeast of Woodleaf. 940 Comment
  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
  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
  UCD139681  Fritillaria recurva Kathleen Keliher 1975-5-15 111 Yuba 10 yards above roadside of Peterson Ridge Road, 1 mile from Oregon House Road. 762 Comment
  UCD121740  Galium aparine Barbara Yungert 1974-4-12 21 Yuba North of Yuba River, Sierra Foothill Field Station. Comment
  UCD80743  Galium bolanderi CNPS SN Foothill Team 2005-5-31 SNFN 0330 d Yuba BLM, Ponderosa Landfill, near the southeast corner of the parcel (east of the defunct landfill). 685 Comment
  CHSC108192  Galium divaricatum Lowell Ahart 2011-6-7 17412 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS62620  Galium divaricatum John Thomas Howell and Gordon H. True 1967-6-13 3572 Yuba river e Wheatland; Bear River, Camp Far West Reservoir 60 Comment
  UCR232252  Galium parisiense George K. Helmkamp, E. A. Helmkamp 2011-5-6 17215 Yuba Eastern edge of Sacramento Valley, Camp Far West Road, 1.3 miles southeast of its junction with Spenceville Road, 5.25 mi. NE (52 deg. ) of Wheatland 62 Comment
  SBBG121515  Galium sparsiflorum L. Ahart, L. Janeway, L. Hanson 2007-9-18 14499 Yuba Hampshire Crk Meadow, ca. 20 yards E of dirt rd, ca. 1 mi E of Clipper Mills 1015 Comment
  RSA726440  Galium sparsiflorum subsp. glabrius L. Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14499 Yuba About 1 mile (air) east of Clipper Mills. 1016 Comment
  UCD82293  Galium trifidum subsp. subbiflorum Robin McMaster 1973-6-24 504 Yuba Oregon Creek Campground. Comment
  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
  CHSC84142  Gastridium phleoides Lowell Ahart 2003-6-29 10319 Yuba Along a wash, on the east side of Ponderosa Way, about 1 1/2 miles north of La Porte Road, about 1 mile (air) west of Brownsville. 701 Comment
  CHSC97447  Gastridium phleoides Lowell Ahart 2007-5-12 13827 Yuba Dry bare red soil, about 30 feet south of a culvert, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  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
  CHSC108310  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
  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
  UCD37890  Geranium dissectum Beecher Crampton 1962-4-24 6316 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD37891  Geranium molle Beecher Crampton 1962-4-24 6317 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  SEINET12335244  Gilia capitata F. H. Utech 1990-1 90 -862 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  UCR195173  Gilia capitata subsp. pedemontana George K. Helmkamp, E. A. Helmkamp 2007-5-26 12144 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, just north of the Nevada Co. line; beside Oregon Creek and Oregon Creek campground 430 Comment
  SEINET10464593  Githopsis specularioides Yungert 1974-5-3 YUNGERT 107 Yuba Near cattle guard and U.C. sign, west of station, Sierra Foothill Field Station Comment
  SEINET10972189  Githopsis specularioides Keliher 1975-5-3 KELIHER 86 Yuba Higher Cook Road, K 1-11 Project Area, Sierra Foothill Field Station 229 Comment
  CHSC113177  Glinus lotoides Lowell Ahart 2013-11-30 19297 Yuba On the north side of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  JEPS102591  Glinus lotoides Lowell Ahart 2001-11-2 9401 Yuba Camp Far West Reservoir, about 1/4 mile NE of the dam, about 9 miles (air) SE of Wheatland. 83 Comment
  JEPS121315  Glinus lotoides Lowell Ahart 2013-11-30 19297 Yuba On the N side of a deep wash (Willow Glen Creek), NW of Dry Creek, below the high water line of Collins Lake, about 100 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  CDA2105  Glyceria declinata J. F. Williams Mar 1984 s.n. Yuba 0 Comment
  CHSC97481  Glyceria declinata Lowell Ahart 2007-5-12 13824 Yuba In the scraped swale, about 20 yards northwest of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  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
  JEPS95807  Glyceria declinata Lowell Ahart 1999-9-17 8248 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
  UCD66834  Glyceria elata Beecher Crampton 1966-6-14 7748 Yuba 1 mile east of Brownsville. 731 Comment
  RSA795344  Gnaphalium luteoalbum L. Ahart 2011-6-7 17376 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 air miles northeast of Marysville. 66 Comment
  UCR189429  Gnaphalium luteoalbum George K. Helmkamp, E. A. Helmkamp 2007-8-29 12833 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 Comment
  UCD135096  Gnaphalium luteoalbum Barbara Yungert 1974-5-9 145 Yuba south of road, SC-14 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC303348  Gnaphalium palustre Lowell Ahart 1980-8-12 2564 Yuba Along Slate Creek 1250 Comment
  CHSC81758  Gnaphalium palustre Lowell Ahart 2001-11-2 9403 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  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
  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
  CAS-BOT-BC303349  Gnaphalium palustre Rimo Bacigalupi 1927-7-2 1579 Yuba Road to Downieville 2 miles W of Camptonville Comment
  CHSC69459  Goodyera oblongifolia Lowell Ahart 1997-8-7 7831 Yuba ON the east side of the dirt road, on the east side of the bridge across Indian Creek, about 3 miles (air) east of Challenge. 762 Comment
  JEPS125850  Goodyera oblongifolia Dean W. Taylor 2001-7-31 17851 Yuba Rock Creek canyon on the Yuba County side, ca 2 air miles SW of Union Hill. Comment
  JEPS94516  Goodyera oblongifolia Lowell Ahart 1997-8-7 7831 Yuba About 3 air mi e of Challenge (on e side of the dirt road, on the e side of the bridge across Indian Creek); bridge across Indian Creek. 762 Comment
  CAS-BOT-BC314671  Grindelia hirsutula Lewis S. Rose 1971-6-10 71071 Yuba Yuba River, Parks Bar W of Smartville 60 Comment
  CAS-BOT-BC314672  Grindelia hirsutula John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54072 Yuba 1.4 miles southwest of Bullards Bar Dam, on road to Challenge 609 Comment
  CHSC97681  Hainardia cylindrica Lowell Ahart 2007-5-12 13825 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC115890  Hastingsia alba L. P. Janeway 2015-7-1 11792 Yuba Northern High Sierra Nevada. Plumas National Forest; Forbestown, 120 m southwest of Challenge Cut-Off Road and 0.6 km southeast of its junction with Forbestown Road.; springy area at headwaters of a northeastern tributary of New York Creek. 817 Comment
  CHSC108222  Hedypnois cretica Lowell Ahart 2011-6-7 17377 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCD38717  Hedypnois cretica Beecher Crampton 1957-6-5 4130 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  CAS-BOT-BC306332  Hedypnois cretica W. P. Vestal; A. G. Vestal 1947-4-30 s.n. Yuba About 5.1 miles west of Smartsville Comment
  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
  UCD132675  Hedypnois cretica Barbara Yungert 1974-4-19 69 Yuba intersection of Loop and Road 4, K1-11 Project area, Sierra Foothill Field Station. Comment
  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
  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-BC314787  Helianthella californica var. nevadensis Lloyd W. Swift 1932-5-10 55 Yuba Near Dobbins, Mt. Misery, Plumas Forest 762 Comment
  CAS-BOT-BC309977  Hemizonia congesta subsp. luzulifolia C. B. Wolf; B. D. Stark 1933-9-25 5504 Yuba Marysville Airport, 2 mi. N. of Marysville, Sacramento Valley 22 Comment
  UC718034  Hemizonia congesta subsp. luzulifolia C. B. Wolf, and B. D. Stark 1933-9-25 Yuba 2 mi n Marysville (Marysville Airport); Sacramento Valley 15 Comment
  CDA7043  Hemizonia fitchii A. C. Browne 1951-5-15 Yuba Marysville. 0 Comment
  CAS-BOT-BC310179  Hesperevax caulescens Lowell Ahart 2007-5-12 13775 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  LA6491  Hesperocyparis macnabiana Carl Epling; June 1938 sn Yuba near Brownsville Comment
  SBBG117339  Hesperocyparis macnabiana B. Crampton 1972-2-14 8769 Yuba ca. 1.5 mi NNE of Oregon House Comment
  SD40674  Hesperocyparis macnabiana Carl B. Wolf, E. R. Johnson 1934-10-3 Yuba Sierra Nevada Foothills, Texas Hill, about 2 miles west of Dobbins 550 Comment
  CHSC47433  Hesperolinon micranthum Lowell Ahart 1976-5-27 1132 Yuba Along Ponderosa Way, near the Brownsville Dump, south-west of Brownsville. 548 Comment
  CHSC47434  Hesperolinon micranthum Lowell Ahart 1975-6-30 826 Yuba Growing on dry bare soil along the edge of La Porte Road, about 3 miles north-east of Rackerby. 487 Comment
  JEPS95798  Heteranthera limosa Lowell Ahart 1999-9-17 8240 Yuba about 5 miles (air) northeast of Marysville; ; south of Woodruff Lane; just east of Mathews Road; east of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  CDA2656  Heteranthera rotundifolia L. Ahart 1999-9-17 8241 Yuba South of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer s rice dryer, about 5 miles (air) northeast of Marysville. Comment
  RSA584282  Heterocodon rariflorum L. Ahart 1980-6-19 2407 Yuba 3.5 miles SE of Challenge. 800 Comment
  CHSC113680  Heteromeles arbutifolia L. P. Janeway 2014-6-24 11419 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
  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
  RSA0075913  Heterotheca grandiflora A. A. Heller 1924-10-25 13833 Yuba Wheatland. Comment
  CHSC41147  Hieracium scouleri J. D. Jokerst 1984-7-5 2083 Yuba On crest of spur ridge. N of the junction of N Fork Yuba River and Deadwood Creek. 701 Comment
  CAS-BOT-BC55318  Hirschfeldia incana Lowell Ahart 1974-5-1 s.n. Yuba About 5 miles east of Loma Rica. 400 Comment
  UCD33103  Hoita macrostachya Beecher Crampton 1966-6-14 7738 Yuba Yuba County, 5 miles east of Brown's Valley, Sierra Foothill Range Field Station. Comment
  CHSC115907  Hoita orbicularis L. P. Janeway 2015-6-29 11786 Yuba Northern High Sierra Nevada. Plumas National Forest; Weiss Hill Meadow, a large meadow 600 air-km east-southeast of junction of Weiss Hill Road and Forbestown Road; at the head of a minor northwestern tributary to New York Creek. 853 Comment
  SEINET3449379  Hoita orbicularis Unknown 2003-7-6 10354 Yuba Dobbins, Dobbins, about 5 air miles north, east of the power line, about 50 yards west of Fountain Hill Road 830 Comment
  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-BC280821  Holcus lanatus Lowell Ahart 1979-6-25 s.n. Yuba About one mile south of Challenge 700 Comment
  CHSC108309  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
  UCR195152  Holcus lanatus George K. Helmkamp, E. A. Helmkamp 2007-5-26 12137 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, just north of the Nevada Co. line; beside Oregon Creek and Oregon Creek campground 430 Comment
  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
  RSA212150  Holozonia filipes L. S. Rose 1969-6-26 69060 Yuba 5 miles S of Smartville; Camp Beale Road. 183 Comment
  UCD133257  Holozonia filipes Robert E. Preston 1997-10-30 1059 Yuba Beale Air Force Base, on lower bank and in dry channel of Hutchinson Creek, around 300 feet north of Doolittle Drive. 35 Comment
  JEPS113402  Hordeum marinum subsp. gussoneanum Lowell Ahart 2007-5-14 13860 Yuba Bottom of a large vernal pool, about 30 yards east of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville 29 Comment
  SACT001354  Hordeum marinum subsp. gussoneanum Michael Baad 1983-7-11 Yuba Wet grazed meadow. 1828.0 Comment
  UCD85847  Hordeum marinum subsp. gussoneanum Beecher Crampton 1966-6-14 7755 Yuba 1 mile east of Brownsville. 731 Comment
  UCD86150  Hordeum murinum subsp. glaucum Beecher Crampton 1962-4-17 6172 Yuba Ca. 2 miles south of Marysville. Comment
  UCD86490  Hordeum murinum subsp. glaucum Barbara Yungert 1974-5-12 G- 12 Yuba Sierra Foothill Field Station. K 1-11 project area. 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
  UCD86143  Hordeum murinum subsp. leporinum Beecher Crampton 1957-6-5 4164 a Yuba In front of old Stewart and Bros. and Wells Fargo Store. Site of Timtuctoo. 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-BC144066  Horkelia parryi Gladys L. Smith 1976-6-7 4617 Yuba About 15 miles southwest of La Porte 1524 Comment
  UCD113564  Horkelia tridentata W. R. Powell 1968-5-15 1493 Yuba On Fountain House Road, 2 miles northeast of Dobbins. 792 Comment
  UCD113558  Horkelia tridentata Kathleen Keliher 1975-5-6 93 Yuba 300 meters off La Porte Road, 2 miles from Forbestown Road. 914 Comment
  CHSC11350  Horkelia tridentata subsp. flavescens Lowell Ahart 1970-4-5 Yuba Near Challenge. 914 Comment
  CHSC112853  Horkelia tridentata var. tridentata L. P. Janeway 2014-4-15 11226 Yuba Northern High Sierra Nevada. Plumas National Forest; about halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River), near Road 18N01A close to its lower end. 860 Comment
  NY15467  Hosackia incana J. M. Bigelow 1853-1 s.n. Yuba South Yuba Comment
  UCD106125  Hosackia oblongifolia R. O. Hanes 1991-5-21 14 Yuba Hornswoggle Ck area. Tahoe Forest. 682 Comment
  CHSC63249  Hosackia pinnata Lowell Ahart 1994-6-5 7305 Yuba On the bottom and sides of Costa Creek, on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  UCD35870  Hosackia pinnata Beecher Crampton 1965-6-17 7368 Yuba ca. 0.75 mile north of Stanfield Hill, Willow Glen Creek. Comment
  CDA14417  Hydrilla verticillata G. D. Barbe, Lew Davis, Jack Gianelli 1977-1-19 2236 Yuba SE corner of Lake Ellis, 9th and B streets, Marysville. 0 Comment
  UCD19074  Hydrilla verticillata Richard Yeo 1976-11-1 s.n. Yuba city of Marysville, 9th and B Sts., Ellis Lake. Comment
  CDA1445  Hydrilla verticillata G. D. Barbe, T. C. Fuller 1976-11-1 2231 Yuba 9th and B Streets, Marysville Southeast edge of freshwater Ellis Lake, to 4-1/2 feet deep. 0 Comment
  CDA21264  Hydrilla verticillata unknown January 1977 Yuba Sacramento Valley; Ellis Lake, Marysville. 0 Comment
  CDA43046  Hydrilla verticillata David Kratville 2014-9-9 s.n. Yuba Trantham property, Oregon House. 0 Comment
  RSA289629  Hydrilla verticillata G. D. Barbe, T. C. Fuller 1976-11-1 2231 Yuba 9th and B Streets, Marysville. Comment
  SBBG80277  Hydrilla verticillata K. Miller 1976-11-24 Yuba Ellis Lake, 9th and B St, Marysville Comment
  CHSC113190  Hydrocotyle umbellata Lowell Ahart 2013-11-30 19309 Yuba On north side of Dry Creek, below the high water line of Collins Lake, about 300 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 354 Comment
  JEPS121312  Hydrocotyle umbellata Lowell Ahart 2013-11-30 19309 Yuba On the N side of Dry Creek, below the high water line of Collins Lake, about 300 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  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
  JEPS98496  Hypericum anagalloides Lowell Ahart 2000-6-11 8462 Yuba 6 mi (air) S of Smartville (sides of a deep wash, a N branch of Dry Creek, 2 mi N of int. of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  JEPS98696  Hypericum anagalloides Lowell Ahart 2000-6-11 8462 Yuba 6 mi (air) S of Smartville (sides of a deep wash, a N branch of Dry Creek, 2 mi N of int. of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  CHSC112862  Hypericum concinnum L. P. Janeway 2014-4-26 11427 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  UC1122103  Hypericum concinnum M. A. Elvin 1933-6-7 25 Yuba 4 mi. s.w. McCourtney Crossing; Smartsville Quad. Comment
  CDA36536  Hypericum concinnum Crane 42197 Yuba Marysville 0 Comment
  JEPS104351  Hypericum formosum var. scouleri Lowell Ahart 2003-7-6 10351 Yuba In a meadow, e of the power line, ca 50 yd w of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  SEINET3449128  Hypericum perforatum Unknown 2003-7-6 10352 Yuba Dobbins, Dobbins, about 5 air miles north, east of the power line, about 50 yards west of Fountain Hill Road 830 Comment
  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
  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
  UCD133397  Hypochaeris glabra Barbara Yungert 1974-4-19 68 Yuba west of road, SC-14 project area, Sierra Foothill Field Station. Comment
  CHSC96978  Hypochaeris radicata Lowell Ahart 2007-8-7 14411 Yuba Hampshire Creek Meadow, about 30 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS113576  Hypochaeris radicata Lowell Ahart 2007-8-7 14411 Yuba Hampshire Creek Meadow, about 30 yards east of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  CAS-BOT-BC133614  Iris hartwegii Barbara T. Keller 1975-6-10 1508 Yuba Challenge Experimental Forest along La Porte Road near Challenge 762 Comment
  CAS-BOT-BC133615  Iris hartwegii Peter H. Raven 1953-5-9 5471 Yuba 1 mile from Brownsville on road to Challenge Comment
  CAS-BOT-BC133616  Iris hartwegii Gladys L. Smith 1976-6-7 4619 Yuba Along road about 15 miles southwest of La Porte 1524 Comment
  RSA135878  Iris hartwegii Lee W. Lenz, E. K. Balls 1956-6-20 21851 Yuba 0.5 mile west of Sierra-Yuba County line along State highway 49 915 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
  SJSU9895  Iris tenuissima J. B. Willis Jr. 1969-4-19 42 Yuba Marysville Rd, 1 mi W of Dobbins 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
  HSC96960  Isoetes nuttallii L. Ahart 2004-4-27 10750 Yuba 100 yards NW of where drainage crosses the rd., about 0.5 mi. SE of Woodleaf 951 Comment
  JEPS95299  Isoetes nuttallii Lowell Ahart 1994-6-5 7292 Yuba 3 air miles E of Forbestown (N side of Costa Creek, N side of Forbestown Road) 853 Comment
  CAS-BOT-BC69895  Isoetes nuttallii Lowell Ahart 1980-6-19 2412 Yuba 4.5 mi. e. of Challenge. 900 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
  UCD80369  Isoetes orcuttii CNPS SN Foothill Team 2005-3-17 SNFN 0019 a Yuba CDFG Spenceville Wildlife Area, ~ 2/3 mile along horse trail, then SW between trail and Smartville Rd. From CA Highway 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). 195 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-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
  UCD38714  Jensia rammii Beecher Crampton 1957-6-5 4154 Yuba 1.3 miles east Oregon House Store. Comment
  CAS-BOT-BC340265  Jensia rammii Peter H. Raven 1953-5-9 5482 Yuba 2 miles from Brownsville on road to Dobbins Comment
  SBBG34171  Juglans hindsii M. A. Brayton 1964-5-23 43 Yuba slough area at NW end of Ellis Lake 18 Comment
  CDA39164  Juncus acuminatus L. Ahart 2002-10-9 9955 Yuba Along a small stream, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. Comment
  CHSC83065  Juncus acuminatus Lowell Ahart 2002-10-9 9955 Yuba Along a small stream, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CHSC96931  Juncus acuminatus Lowell Ahart 2007-6-22 14215 Yuba Sides of a new ditch, near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC96986  Juncus acuminatus Lowell Ahart 2007-8-7 14412 Yuba Hampshire Creek Meadow, about 5 yards west of the dirt road, about 1 mile (air) east of Clipper Mills. On the east side of a small pond, on the west side of the dirt road. 1021 Comment
  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
  JEPS66899  Juncus acuminatus W. L. Jepson 1934-7-29 16762 Yuba Smartsville Comment
  CHSC47520  Juncus articulatus Lowell Ahart 1980-8-12 2571 Yuba Slate Creek, west of where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  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
  CHSC116334  Juncus balticus subsp. ater Lowell Ahart 2015-11-19 20674 Yuba 100 yards or more north of the spillway area, below the high water line, west side of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  HSC13984  Juncus balticus subsp. ater T. F. Newman 1964-4-12 64 Yuba 9 mi. N of Marysville on Hwy. (alternate) 40, 1 mi. E, Feather River Comment
  CHSC47528  Juncus bufonius var. bufonius Lowell Ahart 1979-6-3 1916 Yuba About 1 mile south of Challenge. 670 Comment
  CHSC47531  Juncus bufonius var. bufonius Lowell Ahart 1980-8-12 2563 Yuba Debris dam across Slate Creek, west of where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  CHSC97635  Juncus bufonius var. bufonius Lowell Ahart 2007-5-12 13818 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  RSA727525  Juncus bufonius var. bufonius L. Ahart 2007-5-12 13818 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  CHSC78330  Juncus bufonius var. occidentalis Lowell Ahart 2000-6-23 8503 Yuba 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
  CHSC97505  Juncus capitatus Lowell Ahart 2007-5-12 13819 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCD80380  Juncus capitatus CNPS SN Foothill Team 2005-3-17 SNFN 0019 b Yuba CDFG Spenceville Wildlife Area. From CA Highway 20 east, right on Smartville Road to Spenceville Wildlife Area, CDFG. Plot is accessible from 1st Fish and Game gate on E side of Spenceville Road, Horsetrail (N/S). Location is ca. 2/3 mile along horse trail, then SW between trail and Smartville Road. 195 Comment
  CDA2698  Juncus capitatus J. T. Howell, G. H. True 1967-6-13 3574 Yuba Camp Far West Reservoir, on Bear River east of Wheatland. Comment
  RSA220008  Juncus capitatus J. T. Howell, Gordon H. True 1967-6-13 3553 Yuba ca. 5 miles E of Wheatland and 1 mile N of Bear River. 55 Comment
  HSC98444  Juncus covillei L. Ahart, L. P. Janeway, L. Hanson 2007-7-13 14294 Yuba S side of Hampshire Creek, E of dam, 100 yds. E of Forest Rd., 1 mi. E of Clipper Mills 1021 Comment
  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
  UCR118906  Juncus covillei Beecher Crampton 1966-6-14 7759 Yuba Central Sierra Nevada foothills, 1 Mile east of Brownsville on La Porte Road. 732 Comment
  RSA653951  Juncus covillei Beecher Crampton 1966-6-14 7759 Yuba 1 mile east of Brownsville on La Porte road. 732 Comment
  CHSC105965  Juncus cyperoides Lowell Ahart 2010-9-9 17141 Yuba In a small meadow, about 50 yards east of the dirt road (road now destroyed), east part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills. 1015 Comment
  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
  CHSC97457  Juncus cyperoides Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-9-18 14496 Yuba Along a small stream, about 100 yards northwest of the dirt road, north part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills. 1015 Comment
  CHSC97460  Juncus cyperoides Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-9-18 14498 Yuba In a small meadow, about 50 yards northwest of the dirt road, north part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills. 1015 Comment
  JEPS115058  Juncus cyperoides Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14496 Yuba Along a small stream, about 100 yards northwest of the dirt road, north part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills 1015 Comment
  RSA794388  Juncus cyperoides P. F. Zika, Barbara L. Wilson, L. Ahart, L. P. Janeway 2011-8-5 25717 Yuba Southwest edge of Hampshire Meadow, 1 air mile east of Clipper Mills, northern Sierra Nevada Highlands. 1025 Comment
  UCR259341  Juncus cyperoides Glenn L. Clifton 2001-8-20 37290 Yuba Hampshire Creek 1027 Comment
  CHSC113779  Juncus cyperoides Barbara L. Wilson; Lowell Ahart, Lawrence Janeway, Peter 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; UTM 10 659976 east, 4377730 north, +/- 62 feet. 1033 Comment
  CHSC84203  Juncus dubius Lowell Ahart 2003-7-2 10346 Yuba In a small stream, on the west side of Fountain Hill Road, about 3 miles south of Oregon Hill Road, about 1/2 mile (air) north of Fountain House Hill, about 3 miles (air) northeast of Dobbins. 841 Comment
  JEPS113873  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
  CHSC106633  Juncus effusus subsp. effusus Peter F. Zika 2010-6-22 24976 Yuba Northern Sierra Nevada Foothills (n SNF); Spring Valley Road NE of Browns Valley Ridge. 90 Comment
  CHSC112068  Juncus effusus subsp. effusus L. P. Janeway 2014-8-26 11572 Yuba Northern High Sierra Nevada. Plumas National Forest; about 50 m east of Oregon Hill Road, about 1 km south of Little Oregon Creek; 8 air-km southeast of Challenge. 668 Comment
  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
  CHSC96879  Juncus effusus subsp. pacificus Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-13 14300 Yuba About 30 yards east of a poor dirt road, about 1 1/2 miles (air) northeast of Clipper Mills. 1045 Comment
  CHSC96966  Juncus effusus subsp. pacificus Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-13 14301 Yuba About 30 yards east of a poor dirt road, about 1 1/2 miles (air) northeast of Clipper Mills. 1045 Comment
  RSA691012  Juncus effusus subsp. pacificus L. Ahart 2003-7-2 10347 Yuba On the west side of Fountain Hill Road, about 3 miles south of Oregon Hill Road, about 1/2 mile (air) north of Fountain House Hill, about 3 miles (air) northeast of Dobbins. 842 Comment
  CHSC84239  Juncus howellii Lowell Ahart 2003-7-6 10364 Yuba In a meadow, east of the power line, about 60 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  JEPS113845  Juncus laccatus Lowell Ahart 2007-8-7 14414 Yuba On the east side of a small pond, on the west side of the dirt road, Hampshire Creek Meadow, about 5 yards west of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  RSA727523  Juncus laccatus L. Ahart 2007-8-7 14414 Yuba About 1 mile (air) east of Clipper Mills. 1021 Comment
  CHSC107309  Juncus occidentalis L. P. Janeway 2011-7-5 10493 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 480 m northeast of Marysville Road. Near top of the saddle, springtime wet meadow, along shallow depression where a little water pools while draining from meadow. 756 Comment
  CHSC84399  Juncus occidentalis Lowell Ahart 2003-7-6 10365 Yuba Near a meadow, east of the power line, about 30 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  CHSC78331  Juncus orthophyllus Lowell Ahart 2000-6-23 8504 A Yuba Bog in a small meadow, about 200 yards east of the meadow along La Porte Road, about 50 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  CHSC112956  Juncus oxymeris L. P. Janeway 2014-6-26 11423 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
  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
  CHSC96982  Juncus tenuis Lowell Ahart 2007-8-7 14428 Yuba South of Hampshire Creek Meadow, graded edges of the dirt road, about 1 mile (air) east of Clipper Mills. On the east side of a small pond, on the west side of the dirt road. 1021 Comment
  JEPS103390  Juncus tenuis Lowell Ahart 2002-10-9 9951 Yuba Area E of a spring, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS113858  Juncus tenuis Lowell Ahart 2007-8-7 14428 Yuba South of Hampshire Creek Meadow, graded edges of the dirt road, about 1 mile (air) east of Clipper Mills. On the east side of a small pond, on the west side of the dirt road 1021 Comment
  JEPS115068  Juncus tenuis Lowell Ahart 2007-11-1 14539 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  RSA726438  Juncus tenuis L. Ahart 2007-11-1 14539 Yuba About 1 mile northwest of Old Camptonville Road, about 1.5 miles (air) west of Camptonville. 627 Comment
  RSA727522  Juncus tenuis L. Ahart 2007-8-7 14428 Yuba About 1 mile (air) east of Clipper Mills. 1021 Comment
  UCD37136  Juncus tenuis Beecher Crampton 1957-6-5 4158 Yuba 1.3 miles east of Oregon House Store. 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
  JEPS113746  Juncus usitatus Lowell Ahart 2007-6-30 14234 Yuba Near and west of new road pad, about 350 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UC423487  Keckiella breviflora David D. Keck 1930-7-25 984 Yuba Bullards Bar Reservoir; Sierra Nevada 1500 Comment
  UCD123765  Keckiella breviflora var. glabrisepala Barbara Yungert 1974-5-13 149 Yuba along dirt road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UC2016501  Keckiella lemmonii Richard Olmstead 1986-6-14 845 Yuba Entrance to the Oregon Creek Picnic Ground. Jct of Oregon Cr. with middle fork Yuba River. Comment
  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
  CAS-BOT-BC180848  Kochia scoparia Lemmel Jr. Osborne 1948-9-5 s.n. Yuba Near Marysville Comment
  UCD85744  Koeleria macrantha Beecher Crampton 1957-6-5 4141 Yuba 1 mile east of Stanfield Hill. Comment
  CAS-BOT-BC340441  Lactuca saligna J. T. Howell; Gordon H. True 1969-6-24 5094 Yuba Vineyard Creek ca. 4 miles south of Smartville on Beale AFB Rd. 152 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
  CHSC112370  Lactuca virosa L. P. Janeway 2014-6-25 11420 Yuba Northern High Sierra Nevada. Plumas National Forest; Along Oregon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km northwest of Summit Hill; slope above Burnt Bridge Creek. 792 Comment
  CHSC112371  Lactuca virosa L. P. Janeway 2014-6-25 11420 Yuba Northern High Sierra Nevada. Plumas National Forest; Along Oregon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km northwest of Summit Hill; slope above Burnt Bridge Creek. 792 Comment
  JEPS121797  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
  JEPS121798  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
  UCD77791  Lagophylla glandulosa Robert E. Preston 1997-10-29 1058 Yuba Beale Air Force Base, east of Golf Course 39 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
  UCD125090  Lamium amplexicaule Kathleen Keliher 1975-5-15 109 Yuba Across from mountain view property, Cleaveland Road, 3 miles east of Camptonville. 914 Comment
  SEINET7042637  Lasthenia californica A. G. Vestal 1963-5-7 s.n. Yuba 5.2 miles southwest of Bangor. Loma Rica quadrangle UTM Zone 10, 632125mE, 4355120mN. 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
  UC665557  Lasthenia fremontii Annetta Carter 1940-4-21 1528 Yuba 4.3 mi se Marysville (on road to Spenceville); Sacramento Valley 30 Comment
  SBBG28004  Lasthenia fremontii A. Carter 1940-4-21 1528 Yuba 4.3 mi SE of Maryville rd to Spenceville 30 Comment
  SEINET10859144  Lasthenia fremontii Annetta M. Carter 1940-4-21 Carter 1528 Yuba Edge of drying vernal pool 4.3 miles southeast of Marysville on road to Spenceville. 30 Comment
  UCR47660  Lasthenia glaberrima C. B. Wolf 1937-5-18 08735 Yuba SacramenoValley, 2 mi south of Marysville 18 Comment
  RSA21665  Lasthenia glaberrima C. B. Wolf 1937-5-18 8735 Yuba SacramenoValley, 2 mi S of Marysville. 18 Comment
  UCR169010  Lasthenia gracilis David Charlton 2005-5-16 8009 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  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
  CHSC116216  Lathyrus latifolius Lowell Ahart 2015-6-16 20247 Yuba Near the water ditch, about 100 yards south of the poor dirt road, about 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. 829 Comment
  UCD106387  Lathyrus nevadensis Kathleen Keliher 1975-5-15 112 Yuba Along Peterson Road, 1 mile from Oregon House Road. Comment
  CAS-BOT-BC213280  Lathyrus sulphureus Barbara T. Keller 1975-6-10 1501 Yuba Challenge Experimental Forest, along la Porte road near Challenge 762 Comment
  UCD106457  Lathyrus sulphureus W. R. Powell 1967-6-13 1457 Yuba 1 1/2 miles northeast of Challenge. Comment
  UCD33231  Lathyrus sulphureus Beecher Crampton 1967-5-17 7947 Yuba Yuba County, 1 mile west of Timbuctoo, slopes above the Yuba River. 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
  CHSC116267  Leersia oryzoides Lowell ahart 2015-11-19 20682 Yuba 100 yards or more north of the spillway area, below the high water line, west side of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  CAS-BOT-BC534940  Lemna minuta Lowell Ahart 1981-6-13 2858 Yuba Near McGinn Hill, Loma Rica. Sierra Nevada, California. 300 Comment
  CHSC116581  Leontodon saxatilis subsp. longirostris L. P. Janeway 2015-6-30 11787 A 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
  CHSC97496  Leontodon saxatilis subsp. longirostris Lowell Ahart 2007-5-14 13874 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113101  Leontodon saxatilis subsp. longirostris Lowell Ahart 2007-4-17 13681 Yuba Along a poor dirt road, west of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  JEPS115028  Leontodon saxatilis subsp. longirostris Lowell Ahart 2007-11-1 14532 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  UCR206944  Leontodon taraxacoides George K. Helmkamp, E. A. Helmkamp 2009-5-28 14822 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 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
  RSA795534  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 air miles northeast of Marysville. 66 Comment
  CAS-BOT-BC88805  Lepidium campestre Lowell Ahart 1979-6-3 s.n. Yuba 1 mile south of Challenge. 550 Comment
  CHSC43652  Lepidium campestre Lowell Ahart 1979-6-3 1922 Yuba About 1 mile south of Challenge. 640 Comment
  UCR197805  Lepidium campestre George K. Helmkamp, E. A. Helmkamp 2008-5-20 13459 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  JEPS107348  Lepidium nitidum var. nitidum Lowell Ahart 2005-3-11 11604 Yuba In middle of the poor dirt road, W of large rock outcrop, ca. 1/2 mi W of Marysville Rd, ca. 1/2 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/2 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 386 Comment
  RSA715479  Lepidium nitidum var. nitidum L. Ahart 2005-3-11 11604 Yuba West of a large rock outcrop, about 1/2 mile W of Marysville Road, about 1/2 mile N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile N of Loma Rica Road, about 5 miles (air) NE of Loma Rica. 386 Comment
  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
  JEPS113806  Leptochloa fascicularis Lowell Ahart 2007-6-22 14218 Yuba Bottom of a new ditch, near a new road pad, about 350 yards west of the power tower, about 13 miles (air) northeast of Marysville 28 Comment
  CAS-BOT-BC273946  Leptochloa fusca subsp. fascicularis Lowell Ahart 1977-8-31 1536 Yuba 2 miles north-east of Marysville 30 Comment
  UCD37865  Leptosiphon bicolor Beecher Crampton 1962-4-24 6280 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD118637  Leptosiphon bicolor Barbara Yungert 1974-4-16 43 Yuba Sierra Foothill Field Station. Comment
  CDA40067  Leptosiphon filipes Yuba County School Children 1930-4-12 s.n. Yuba [No further data.] 0 Comment
  CHSC45456  Leptosiphon harknessii Lowell Ahart 1980-8-12 2568 Yuba On a gravel bar, a little below where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  UCD112035  Lessingia Christopher Mallek 2008-5-5 IC3- 17 Yuba Indiana Creek. 617 Comment
  CAS-BOT-BC341757  Lessingia nana Gordon H. True; J. T. Howell 1967-6-13 3558 Yuba Ca. 5 miles east of Wheatland and 1 mile north of Bear River 54 Comment
  CHSC83071  Lessingia nemaclada Lowell Ahart 2002-10-10 9979 Yuba On the east side of the dirt road, east of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20. 166 Comment
  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
  SEINET11448039 Image available Lessingia virgata B. Crampton 1974-10-11 9094 Yuba 3 miles southwest of Brown's Valley along Hwy 20 46 Comment
  UC1287451  Lessingia virgata Willard Spence 1962-7-25 732 Yuba Rt. 20 10 mi ne Marysville (on road to Grass Valley) Comment
  UCD33887  Lessingia virgata Beecher Crampton 1974-10-11 9094 Yuba 3 miles S.W. of Brown's Valley along Hwy. 20. Comment
  UCR118921  Lessingia virgata Beecher Crampton 1974-10-11 9094 Yuba Sacramento Valley, 3 miles southwest of Brown's Valley along Hwy 20 46 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
  UC1134613  Lilium humboldtii M. A. Elvin 1933-7-14 49 Yuba 2 mi w Dobbin; Smartsville Quad. 762 Comment
  CAS-BOT-BC130621  Lilium humboldtii A. M. Vollmer; L. Beane 1951-7-1 187 Yuba Brownsville Comment
  CAS-BOT-BC130622  Lilium humboldtii Albert Vollmer 1949-7-6 13 -E Yuba 1 mi. from Challenge on Challenge-Camptonville rd. Comment
  UCD82295  Lilium humboldtii Robin McMaster 1973-6-24 507 Yuba North San Juan. Comment
  CAS-BOT-BC130869  Lilium pardalinum Anna Cramsie 1933-4-24 s.n. Yuba Smartsville Comment
  UCD116452  Limnanthes alba Kathleen Keliher 1975-5-1 98 Yuba along Scott-Grant Road, 1.5 miles from Loma Rica Road. 121 Comment
  SJSU10807  Limnanthes douglasii subsp. rosea J. B. Willis Jr. 1969-4-19 46 Yuba 5 mi E of Linda Comment
  CHSC43512  Limosella acaulis Lowell Ahart 1977-9-25 1592 Yuba On Shintaffer Farms, about 2 miles north-east of Marysville. 32 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
  SEINET13710968  Limosella aquatica Lowell William Ahart, Lowell William Ahart 1999-1 8247 Yuba 5 Mi. NE Marysville, 80 Ft 24 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
  CHSC84984  Lindernia dubia var. anagallidea Lowell Ahart 2003-10-29 10684 Yuba On the south side 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
  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
  UCR231320  Linum bienne George K. Helmkamp, E. A. Helmkamp 2011-5-6 17208 Yuba East edge of Sacramento Valley, junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg. ) of Wheatland 56 Comment
  CHSC116039  Lipocarpha micrantha Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20645 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
  CAS-BOT-BC36025  Lithocarpus densiflorus var. densiflorus Alice Eastwood 1918-4-7 6808 Yuba Camptonville 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-BC430983  Lithophragma bolanderi Junea Kelley 1920-4-24 s.n. Yuba Los Vergils Comment
  CAS-BOT-BC430984  Lithophragma bolanderi Alice Eastwood 1921-5-22 10563 Yuba Los Vergils Comment
  CHSC108188  Logfia gallica Lowell Ahart 2011-6-7 17375 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
  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
  JEPS118304  Logfia gallica Lowell Ahart 2011-6-7 17375 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
  CAS-BOT-BC283567  Lolium multiflorum Saichi Kawahara 1968-4-13 295 Yuba Park's Bar, Highway 20 at N bank of Yuba River 91 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
  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
  JEPS113393  Lomatium caruifolium var. denticulatum Lowell Ahart 2007-5-14 13857 Yuba In the center of a dirt road, 60 yards north of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville 29 Comment
  CHSC42095  Lomatium macrocarpum Lowell Ahart 1986-5-20 5276 Yuba Along Abernathy Road, about 2 miles west of Woodleaf. 914 Comment
  JEPS113330  Lomatium marginatum var. marginatum L. P. Janeway 2006-5-24 8622 Yuba Northern Sierra Nevada Foothills. East side of Ponderosa Way 1.3 km north of La Porte Road & Brownsville. Comment
  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
  CAS-BOT-BC241406  Lonicera John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54080 Yuba About 2 miles northeast of Dobbins on Oregon Hill Road 701 Comment
  JEPS124397  Lonicera hispidula Lowell Ahart, Leigh Johnson 2015-6-10 20225 Yuba Along New York Flat Road, about 1/4 mile northwest of La Porte Road. Comment
  UCD23260  Lonicera interrupta W. R. Powell 1968-5-24 1551 Yuba 5 miles SSE of Challenge, 3/4 miles south of Greenville. 640 Comment
  UCD80205  Lonicera interrupta CNPS SN Foothill Team 2005-7-6 SNNR 0477 Yuba CDFG Daugherty Hill Wildlife Area. 262 Comment
  JEPS120537  Lonicera involucrata L. P. Janeway, Tim Hanson 2013-4-25 11093 Yuba Northern High Sierra Nevada. Plumas National Forest; 50 m east of Oregon Hill Raod between Burnt Bridge Creek and Little Oregon Creek. Comment
  RSA0074187  Lonicera involucrata M. A. Elvin 1933-7-14 54 Yuba Greenville. Comment
  CHSC108227  Lotus argophyllus var. fremontii Lowell Ahart 2011-6-7 17391 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
  UCD106713  Lotus corniculatus Collector unknown 1942-5-22 s.n. Yuba location unknown. Comment
  SEINET7072996  Lotus humistratus 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
  UC1552807  Lotus oblongifolius Frederica Bowcutt 1985-6-8 591 Yuba 1 air mi se Camptonville (and 12 air mi n of Nevada City, along Oregon Creek); Tahoe National Forest, Oregon Creek 762 Comment
  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
  UCR206947  Lotus uliginosus George K. Helmkamp, E. A. Helmkamp 2009-5-28 14833 Yuba Sierra Nevada Mountains Foothills, along CA-49, 2.2 miles north of the Camptonville exit 811 Comment
  UC144152  Lotus wrangelianus A. A. Heller 1905-3-21 7554 Yuba Marysville Comment
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Apr 27 2016
  CDA38130  Ludwigia palustris L. Ahart 2002-10-9 9969 Yuba On the south bank of Lost Creek, below the high water line of Sly Creek Reservoir, about 200 yards southwest of the Day Camp, Sly Creek Reservoir. 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
  CHSC10847  Ludwigia peploides subsp. peploides Lowell Ahart 1966-9-5 Yuba San Shintaffer Ranch. 42 Comment
  CAS-BOT-BC198287  Lupinus Charles Piper Smith 1949-4-16 49108 Yuba Rackerby, 1.5 miles east - Brownsville Road Comment
  RSA318942  Lupinus Patricia Wilder 1971-6-23 5201 Yuba Oregon Hill Road 2.3 miles southeast of Challenge; west of California State Highway 49. 823 Comment
  RSA318943  Lupinus Patricia Wilder 1971-6-23 5210 Yuba Marysville Road, 7.3 miles east of junction with Oregon Hill Road. 610 Comment
  RSA647528  Lupinus Hobart Onstod 1946-3-26 s.n. Yuba South Marysville Comment
  UCD105879  Lupinus albicaulis Barbara Yungert Date Unknown 183 Yuba Koch Landing, KL - 11 project area, Sierra Foothill Field Station. Comment
  SEINET10544010  Lupinus albicaulis subsp. shastensis Duane Isely 1965-5-29 Isely 9646 Yuba Roadsides and disturbed pine woodlands, state 49. Flowers white Comment
  CAS-BOT-BC198375  Lupinus albifrons Charles Piper Smith 1949-4-16 49103 Yuba Loma Rica, 4 miles northeast, Loma Rica Bangor Road, Yuba-Butte Bridge Comment
  UC710391  Lupinus albifrons C. P. Smith 1946-5-2 46257 Yuba Browns Valley Road 7.1 mi sw Brownsville 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
  JEPS94930  Lupinus albifrons var. albifrons Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7727 Yuba about 17 mi ne of Marysville (on bank of Browns Valley Water Ditch, n of the poor dirt road, s of Dry Creek, about 1 1/4 mi e of Scott Forbes Road (Long Bar Rd)); Browns Valley Water Ditch 198 Comment
  JEPS95156  Lupinus albifrons var. albifrons Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7727 Yuba about 17 mi ne of Marysville (on bank of Browns Valley Water Ditch, n of the poor dirt road, s of Dry Creek, about 1 1/4 mi e of Scott Forbes Road (Long Bar Rd)); Browns Valley Water Ditch 198 Comment
  UCR196984  Lupinus albifrons var. collinus George K. Helmkamp, E. A. Helmkamp 2008-5-20 13469 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  CAS-BOT-BC196316  Lupinus albifrons var. flumineus Charles Piper Smith 1949-4-16 49106 Yuba Rackerby, 2.4 miles east - Brownsville Road Comment
  UCD106422  Lupinus andersonii W. R. Powell 1968-5-15 1500 Yuba on Fountain House Road, 2 miles NE of Dobbins. 792 Comment
  RSA795536  Lupinus benthamii L. Ahart 2011-6-7 17395 Yuba Huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 air miles northeast of Marysville. 66 Comment
  OBI83268  Lupinus benthamii Rhanda Riggins 1989-4-26 1624 Yuba Roadside bank, Hwy. 20, 0.6 mi W Yuba River crossing, 0.4 mi E Sicard Flat Rd. Comment
  SBBG29027  Lupinus benthamii B. Crampton 1967-5-17 Yuba 5 mi E of Brown's Valley 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
  UC710390  Lupinus bicolor C. P. Smith 1946-5-1 46244 Yuba 1.2 mi n Hiway 99e Wheatland; Wheatland - 1.2 mi n Hiway 99e Comment
  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
  SEINET7042565 Image available Lupinus bicolor A. G. Vestal 1963-5-7 s.n. Yuba Along Ostrom Road east of Route 99. Wheatland quadrangle UTM Zone 10, 630286mE, 4325478mN. Comment
  CHSC113642  Lupinus bicolor var. tridentatus L. P. Janeway 2014-5-13 11254 Yuba Northern High Sierra Nevada. Plumas National Forest; along Oregon Hill Road at the hairpin turn above Burnt Bridge Creek and New Bullards Bar Reservoir. 773 Comment
  RSA21300  Lupinus densiflorus var. lacteus Carl B. Wolf 1937-5-13 8645 Yuba Sierra Nevada Foothills, 1 2/10 mi. below Stanfield hill on road to Browns Valley. 274 Comment
  UC865432  Lupinus lepidus var. sellulus Lewis S. Rose 1939-6-6 39227 Yuba Woodleaf 944 Comment
  SD236291  Lupinus microcarpus David Charlton 2005-5-16 8000 Yuba Sacramento Valley: Yuba Gold Field; just S of Yuba River; ca 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area ca. 2 mi by 1 mi. 25 Comment
  SEINET1908334  Lupinus microcarpus David Charlton 2005-1 8000 Yuba Sacremento Valley: Yuba Gold Field; just S. of Yuba River; ca. 7.5 mi ENE of Maysville; N of Beale Air Force Base; Survey are ca. 2 mi by 1 mi (Browns Valley 7.5' Q) 26 Comment
  CHSC59318  Lupinus microcarpus var. densiflorus Thomas J. Van Wagner 1992-3-12 16 Yuba Scattered groups of plants along s berm State Highway 20, ca. 200 m e Marysville Rd. ca. 24 km ene Marysville. 36 Comment
  UC710380  Lupinus microcarpus var. densiflorus C. P. Smith 1946-4-25 46224 Yuba Hiway 24 at railroad crossing 1 mi n Marysville Comment
  CHSC90459  Lupinus nanus Lowell Ahart 2005-3-11 11619 Yuba Along the sides of the poor dirt road, 100 yards west of a large rock outcrop, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 386 Comment
  JEPS107406  Lupinus nanus Lowell Ahart 2005-3-11 11619 Yuba Along sides of the poor dirt road, 100 yd W of large rock outcrop, ca. 1/2 mi W of Marysville Rd, ca. 1/2 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/2 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 386 Comment
  UC710408  Lupinus nanus C. P. Smith 1946-5-2 46246 Yuba Hammonton Road 1.7 mi e South Marysville; e of South Marysville Comment
  JEPS118080  Lupinus nanus var. vallicola Lowell Ahart 2011-6-7 17394 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
  UC710406  Lupinus pachylobus C. P. Smith 1946-5-2 46259 Yuba Browns Valley Road 7.1 mi sw Brownsville; sw of Brownsville Comment
  UCR206945  Lupinus polyphyllus var. burkei George K. Helmkamp, E. A. Helmkamp 2009-5-28 14835 Yuba Sierra Nevada Mountains Foothills, along CA-49, 2.2 miles north of the Camptonville exit 811 Comment
  CHSC90628  Lupinus stiversii Lowell Ahart 2005-3-11 11610 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 5 miles (air) northeast of Loma Rica. 395 Comment
  UCD109580  Lupinus stiversii Kathleen Keliher 1975-4-30 83 Yuba directly below bridge on State Route 20 near Yuba River. 182 Comment
  UCD109589  Lupinus stiversii Barbara Yungert 1974-5-4 115 Yuba south of rock pile dredgings, north of Yuba River, Sierra Foothill Field Staion. Comment
  RSA21299  Lupinus vallicola subsp. vallicola Carl B. Wolf 1937-5-13 8644 Yuba Sierra Nevada Foothills, 1 2/10 mi. below Stanfield hill on road to Browns Valley. 274 Comment
  SEINET10490993  Lupinus vallicola subsp. vallicola Smith 1948-4-27 Smith 48184 Yuba Jct dobbins and browns valley--brownsville roads. Stanfield hill, 3.4 mi ne. Comment
  JEPS95418  Luzula cascadensis Lowell Ahart 1994-6-27 7395 Yuba Near the south-east side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley 1219 Comment
  CDA7739  Luzula comosa Wilson 2008-3-27 PDR# 1470580 Yuba Oregon Heights, 9448 Rices Texas Hill 0 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
  CHSC10768  Luzula macrantha Lowell Ahart 1968-4-21 Yuba Five miles S.E. of Challenge. 609 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
  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
  CHSC112260  Luzula subsessilis Lowell Ahart 2013-4-23 18567 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
  CHSC83062  Lycopus americanus Lowell Ahart 2002-10-8 9942 Yuba On the edge of a pond, about 100 yards north of Long Ravine Road, about 300 yards southeast of the intersection of Camp Far West Road and Long Ravine Road there is a poor gate on the north side of the road, north of Camp Far West Reservoir. 121 Comment
  JEPS113483  Lycopus americanus Lowell Ahart 2007-6-30 14237 Yuba Near and west of new road pad, about 250 yards west of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC108209  Lythrum hyssopifolia Lowell Ahart 2011-6-7 17404 Yuba North of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS113404  Lythrum hyssopifolia Lowell Ahart 2007-5-12 13798 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS118089  Lythrum hyssopifolia Lowell Ahart 2011-6-7 17404 Yuba North of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  RSA0016012  Lythrum hyssopifolia L. Ahart 2007-5-12 13798 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  SEINET7042652  Lythrum hyssopifolia A. G. Vestal 1963-5-30 s.n. Yuba Weedy depression near Dry Creek and north oh Sicard Flat. Smartville quadrangle UTM Zone 10, 642203mE, 4345148mN. Comment
  UCD103041  Lythrum hyssopifolia Kathleen Keliher 1975-5-28 116 Yuba Near Dry Creek and Rowell's property. 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
  UCD82294  Madia Robin McMaster 1973-6-24 505 Yuba Oregon Creek Campground. 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
  CAS-BOT-BC344282  Madia elegans David D. Keck 1932-7-1 1609 Yuba 1 mile SE. of Log Cabin Service Station, west of Camptonville 600 Comment
  POM186541  Madia elegans D. D. Keck 1932-7-1 1609 Yuba 1 mile SE of log Cabin Service Station, W of Camptonville. 610 Comment
  SEINET7072997  Madia elegans subsp. elegans 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
  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
  UC1535367  Madia exigua Barbara Yungert 1974-5-9 138 Yuba along Road 1, p 1-12 project area, Sierra Foothill Field Station Sierra Foothills Comment
  CAS-BOT-BC344597  Madia exigua Lowell Ahart 1981-6-13 2839 Yuba Sutter Buttes Area. On the northeast side of McGinn Hill, Loma Rica 300 Comment
  CAS-BOT-BC343559  Madia gracilis Lowell Ahart 1980-8-12 2551 Yuba Along Slate Creek 1250 Comment
  CAS-BOT-BC343562  Madia gracilis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54070 Yuba 1.4 miles southwest of Bullards Bar Dam on road to Challenge 609 Comment
  CHSC108197  Madia gracilis Lowell Ahart 2011-6-7 17380 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC37191  Madia gracilis L. Ahart 1982-7-4 3660 Yuba Ca. 1/2 mi e of Brownsville along LaPorte Rd. 700 Comment
  JEPS120532  Madia gracilis L. P. Janeway 2013-6-7 11137 Yuba Northern High Sierra Nevada. Along Oregon Hill Road just south of Little Oregon Creek. Comment
  RSA795345  Madia gracilis L. Ahart 2011-6-7 17380 Yuba Road margin about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 air miles northeast of Marysville. 66 Comment
  SEINET3450907  Madia gracilis Unknown 2003-7-6 10355 Yuba Dobbins, Dobbins, about 5 air miles north, about 30 yards west of Fountain Hill Road Comment
  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
  CAS-BOT-BC343558  Madia gracilis Lowell Ahart 1982-7-4 3660 Yuba About 1/2 mile east of Brownsville, along La Porte Road 700 Comment
  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
  CHSC108195  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
  SEINET7072992  Madia yosemitana A. G. Vestal 1963-5-30 s.n. Yuba About 3.3 miles south of Brownsville on Willow Glen Road near Chritterden Ridge. UTM Zone 10, 647294mE, 4365554mN. Coordinate datum: NAD27). Comment
  CHSC40955  Malacothrix floccifera J. D. Jokerst 1984-7-5 2084 Yuba Canyon of the N. Fork Yuba River, N. of the river at its junction with Deadwood Creek. 701 Comment
  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
  CHSC76109  Malva parviflora Lowell Ahart 1999-9-5 8199 Yuba On the disturbed area on the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 Comment
  UCD107669  Marah fabacea Barbara Yungert 1974-4-10 16 Yuba Along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  CHSC90465  Marah fabacea var. agrestis Lowell Ahart 2005-3-11 11602 Yuba In the center of a large rock outcrop, just east of the poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 386 Comment
  UCSB16772  Marah watsonii Dearing, Hugh; Dearing, Margaret 1939-5-8 Yuba Near Comptonville 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
  JEPS121314  Marsilea vestita Lowell Ahart 2013-11-30 19317 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
  CHSC97749  Marsilea vestita subsp. vestita Lowell Ahart 2007-11-8 14579 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  CAS-BOT-BC422638  Meconella californica Helen McGovern 1928-3-23 s.n. Yuba Smartville Comment
  CHSC43408  Medicago lupulina Lowell Ahart 1979-6-3 1921 Yuba About 1 mile south of Challenge. 670 Comment
  CHSC76108  Medicago lupulina Lowell Ahart 1999-9-5 8193 Yuba On the disturbed area on the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 Comment
  UCD33105  Medicago lupulina Beecher Crampton 1966-6-14 7743 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  SEINET7042629  Medicago lupulina A. G. Vestal 1963-5-7 s.n. Yuba Ca. 3.5 miles north of Wheatland. Camp Far West quadrangle UTM Zone 10, 640908mE, 4323324mN. Comment
  CHSC108198  Medicago polymorpha Lowell Ahart 2011-6-7 17396 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
  CHSC97677  Medicago polymorpha Lowell Ahart 2007-5-14 13871 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113507  Medicago polymorpha Lowell Ahart 2007-5-14 13871 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS118305  Medicago polymorpha Lowell Ahart 2011-6-7 17396 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
  UCD107902  Medicago polymorpha Barbara Yungert 1974-5-1 103 Yuba Near SC-12 fence, southeast corner of SC-14 project area, Sierra Foothill Field Station. Comment
  UCD37856  Medicago polymorpha Beecher Crampton 1962-4-24 6260 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CAS-BOT-BC269365  Melica californica Beecher Crampton 1967-5-17 7940 Yuba 5 miles east Brown's Valley, UC - Sierra Foothill Range Field Station Comment
  UCD86927  Melica californica Beecher Crampton 1962-4-24 6274 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  SEINET4671581  Melica californica C. Aarstad 1979-4-28 s.n. Yuba At junction of Route 20 and north fork of Yuba in Browns Valley 183 Comment
  CHSC105840  Melica subulata Lowell Ahart 2010-7-27 16921 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. Dry part of the meadow. 1219 Comment
  UCD89075  Melica torreyana Beecher Crampton 1965-5-11 7316 Yuba 3 miles east of Brown's Valley. Comment
  UCR197048  Melica torreyana George K. Helmkamp, E. A. Helmkamp 2008-5-20 13472 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  SEINET5322428  Melica torreyana M. Mooney 1982-1 460 A Yuba UCB Sierra Field Station, road between station and main highway 183 Comment
  CHSC83028  Mentha canadensis Lowell Ahart 2002-10-9 9968 Yuba On the north bank of Lost Creek, below the high water line of Sly Creek Reservoir, about 100 yards southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS103257  Mentha canadensis Lowell Ahart 2002-10-9 9968 Yuba On the north bank of Lost Creek, below the high water line of Sly Creek Reservoir, about 100 yards SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  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
  CHSC25505  Mentha spicata L. Ahart 1977-7-31 1504 Yuba One mile s of Challenge. 700 Comment
  CHSC84228  Mentha spicata Lowell Ahart 2003-7-17 10417 Yuba On the bottom of a stream, on the west side of Smartville road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 129 Comment
  SEINET7067146  Micropus amphibolus 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
  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
  CHSC108201  Micropus californicus var. californicus Lowell Ahart 2011-6-7 17382 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC68469  Micropus californicus var. californicus Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7723 Yuba On the bank of the Browns Valley Water Ditch, south of the poor dirt road, south of Dry Creek, about 1 mile east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 182 Comment
  JEPS118294  Micropus californicus var. californicus Lowell Ahart 2011-6-7 17382 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCR257159  Micropus californicus var. californicus George K. Helmkamp 2014-4-17 22769 Yuba Sierra Nevada Foothills, Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville 264 Comment
  CAS-BOT-BC348441  Micropus californicus var. californicus Alice Eastwood 1921-5-22 10534 Yuba Los Vergils Comment
  UCD134518  Micropus californicus var. californicus Barbara Yungert 1974-4-25 81 Yuba lower SC-14 project area, Sierra Foothill Field Station. Comment
  SEINET7042615  Microseris acuminata A. G. Vestal 1963-5-7 s.n. Yuba Ca 3.5 miles north of Wheatland. Wheatland quadrangle UTM Zone 10, 636544mE, 4323933mN. Comment
  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
  OBI48845  Mimulus aurantiacus var. grandiflorus Lewis S. Rose 1939-6-7 39242 Yuba N Fork of Feather River, 3 mi S of Pulga 610 Comment
  UCD122353  Mimulus aurantiacus var. grandiflorus Barbara Yungert 1974-5-4 114 Yuba south side of rock pile, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  JEPS88903  Mimulus bicolor Lowell Ahart 1994-6-5 7293 Yuba about 3 air mi e of Forbestown (on n side of Costa Creek, on n side of Forbestown Road); Costa Creek, Forbestown Road 853 Comment
  CAS-BOT-BC9749  Mimulus discolor George Ledyard Stebbins 1966-5-22 6409 Yuba Near Forbestown 822 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
  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
  UCD122682  Mimulus nasutus Kathleen Keliher 1975-4-16 56 Yuba Below Englebright Dam, Sierra Foothill Field Station. 152 Comment
  JEPS113623  Mimulus tricolor Lowell Ahart 2007-5-12 13815 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CAS-BOT-BC174591  Minuartia californica Gordon H. True 1963-4-17 1175 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Hwy. 30 Comment
  CDA24062  Minuartia douglasii D. L. Wilson 1976-5-14 Yuba 4899 Fruitland Road, Loma Rica. 0 Comment
  CHSC113180  Mollugo verticillata Lowell Ahart 2013-11-30 19298 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  CAS-BOT-BC435064  Mollugo verticillata Gordon H. True; J. T. Howell 1967-6-13 3566 Yuba Camp Far West Reservoir on Bear River east of Wheatland 60 Comment
  NY429325  Monardella candicans var. venosa J. M. Bigelow 1854-5-25 s.n. Yuba Plain of Feather River near Marysville Comment
  UCD82843  Monardella glauca Robin McMaster 1973-6-24 483 Yuba Oregon Creek Campground. Comment
  SEINET10935796  Monardella lanceolata Lowell Ahart, Peter Ahart 1983-8-10 Ahart 4273 Yuba Along Peterson Rd, ca. 5 mi e of Challenge. Yellow Pine Forest; 1000 m. 1000 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
  UCD125241  Monardella sheltonii W. R. Powell 1968-5-15 1494 Yuba 2 miles NE of Dobbins on Fountain House Road. 792 Comment
  LA54221  Monardella sheltonii Carl Epling; 1938-6-16 sn Yuba near Brownsville Comment
  JEPS95003  Monardella villosa subsp. villosa Lowell Ahart 1997-8-7 7812 Yuba about 3 air miles southeast of Challenge (on the north side of the dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  CAS-BOT-BC444882  Montia fontana Alice Eastwood 1921-5-22 10515 Yuba Los Vergils Comment
  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
  CHSC47623  Muhlenbergia filiformis Lowell Ahart 1980-8-12 2567 Yuba Gravel bar, Slate Creek, a little below where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  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
  JEPS103480  Muhlenbergia filiformis Lowell Ahart 2002-10-9 9972 Yuba On the S bank of Lost Creek, below the high water line of Sly Creek Reservoir, ca 200 yards SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CAS-BOT-BC274930  Muhlenbergia rigens Lowell Ahart 1977-2-16 s.n. Yuba About 4 miles NE of Marysville Comment
  UCD32864  Muhlenbergia rigens Beecher Crampton 1964-10-22 7228 Yuba Yuba County, 3 miles east of Browns Valley, dry creek bed. Comment
  UCD86997  Muhlenbergia rigens Beecher Crampton 1957-6-5 4144 Yuba 1 mile east of Stanfield Hill. Comment
  HSC79879  Myosotis discolor James Henrickson 1969-5-25 3453 Yuba Ca. 49 mi. NE of Yuba City, 3.7 mi. NE of Nevada-Yuba Co. line along Hwy. 49 793 Comment
  CDA19112  Myriophyllum spicatum Onstott, Storm 2001-3-19 PDR P 116776 Yuba on Durby Lane, Browns Valley. 0 Comment
  CAS-BOT-BC456176  Najas guadalupensis Gordon H. True, Jr.; John Thomas Howell 1970-5-29 5420 Yuba Ca. 1 mi. NW. of Spenceville (site) on Cox Creek. 152 Comment
  UCR168803  Navarretia David Charlton 2005-5-16 8027 A Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  UCR189430  Navarretia divaricata subsp. divaricata George K. Helmkamp, E. A. Helmkamp 2007-8-29 12832 A Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 Comment
  UCD48394  Navarretia eriocephala Barbara Yungert 1974-5-31 189 Yuba H-9 project area, Sierra Foothill Field Station, Yuba County, California. Comment
  RSA123151  Navarretia filicaulis A. E. Wieslander 1933-6-21 255 Yuba 1.5 miles west of Rapps Ranch 457 Comment
  CHSC97669  Navarretia heterandra Lowell Ahart 2007-5-12 13804 Yuba About 30 feet north of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  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
  UCR169019  Navarretia intertexta David Charlton 2005-5-16 8011 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  OBI11322  Navarretia intertexta Lewis S. Rose 1967-6-13 67127 Yuba Camp Far West Reservoir, 7 mi NE of Wheatland. 122 Comment
  RSA0062675  Navarretia intertexta Hobart Onstott 1946-5-11 s.n. Yuba Smartville Hills. Comment
  RSA189453  Navarretia intertexta L. S. Rose 1967-6-13 67127 Yuba Camp Far West Reservoir, 7 mi. NE of Wheatland 122 Comment
  UCD48453  Navarretia intertexta Beecher Crampton 1957-6-5 4132 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  UCD48460  Navarretia intertexta Barbara Yungert 1974-5-16 158 Yuba Above Dry Creek, L 1-11 project area, Sierra Foothill Field Station, Yuba County, California. Comment
  UCD48461  Navarretia intertexta Barbara Yungert 1974-5-23 177 Yuba Along fence of F 1-11 project area, near Road 3, Sierra Foothill Field Station, Yuba County, California. Comment
  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
  JEPS104065  Navarretia intertexta subsp. intertexta Lowell Ahart 2003-7-6 10356 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
  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
  CHSC45447  Navarretia leptalea Lowell Ahart 1980-8-12 2550 Yuba On a 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
  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
  SEINET7042611  Navarretia leucocephala A. G. Vestal 1963-5-29 s.n. Yuba Olivehurst-Smartville Road [presently Hammonton- Smartville Road]. 0.4 mile west of road south to Beale Air Force Base [Smartville Road]. Smartville quadrangle UTM Zone 10, 646242mE, 4339869mN. Comment
  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
  SEINET7042648  Navarretia leucocephala 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
  RSA189460  Navarretia leucocephala subsp. leucocephala L. S. Rose 1967-6-13 67125 Yuba 7 mi. NE of Wheatland. 61 Comment
  UC572391  Navarretia pubescens H. S. Yates 1933-5-24 3641 Yuba near Toland Ranch; Smartsville Quad. 121 Comment
  UC856882  Navarretia pubescens Lewis S. Rose 1939-6-5 39202 Yuba Smartsville 182 Comment
  UCD37131  Navarretia pubescens Beecher Crampton 1957-6-5 4117 Yuba 10 miles east of Marysville, along State Highway 20. Comment
  OBI11305  Navarretia pubescens Lewis S. Rose 1967-6-13 67126 Yuba Camp Far West Reservoir. 7 mi NE of Wheatland 122 Comment
  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
  UCD59440  Navarretia pubescens Barbara Yungert 1974-5-21 170 Yuba South of dirt road, east of wire gate, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  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
  OBI11296  Navarretia tagetina Lewis S. Rose 1967-6-13 67124 Yuba 7 mi NE of Wheatland. 61 Comment
  SEINET5906106 Image available Navarretia tagetina L. S. Rose 1967-1 67124 Yuba 7 mi NE of Wheatland. Comment
  CHSC59545  Nemophila heterophylla H. E. MacLennan 1992-4-5 14 Yuba 19 air miles se of Oroville. 518 Comment
  JEPS113100  Nemophila heterophylla Lowell Ahart 2007-4-17 13687 Yuba East side of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  UC410446  Nemophila heterophylla Alice Eastwood 1930-4-12 17938 Yuba Texas Hill Road Comment
  UC606921  Nemophila heterophylla L. Constance, J. L. Morrison 1938-4-30 2175 Yuba 1 mi nw Smartsville (above Timbuctoo); Sierra Nevada foothills, abv Timbuctoo, nw of Smartsville 304 Comment
  UC718060  Nemophila heterophylla Carl B. Wolf 1937-5-13 8638 Yuba on road to Browns Valley 2 7/10 mi below Stanfield Hill; Sierra Nevada foothills, below Stanfield Hill 182 Comment
  UCR194912  Nemophila heterophylla George K. Helmkamp, E. A. Helmkamp 2007-5-26 12134 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville 802 Comment
  POM249051  Nemophila heterophylla Lincoln Constance 1938-6-8 2292 Yuba Middle Fork of the Yuba River, 4 miles northwest of North San Juan, Sierra Nevada Foothills. 427 Comment
  RSA0043191  Nemophila heterophylla Carl B. Wolf 1937-5-13 8638 Yuba Sierra Nevada Foothills, 2.7 mi below Stanfield Hill on road to Browns Valley. 183 Comment
  SJSU8839  Nemophila heterophylla J. B. Willis Jr. 1969-4-19 Yuba by Marysville Rd, 0.5 mi W of Oregon House P.O. & 7.5 mi W of Dobbins Comment
  UCD120072  Nemophila heterophylla Barbara Yungert 1974-4-16 53 Yuba Koch Livestock Area, Sierra Foothill Field Station. Comment
  CHSC59546  Nemophila maculata H. E. Mac Lennan 1992-4-5 8 Yuba 20 air miles se of Oroville. 502 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
  UCD119911  Nemophila maculata Kathleen Keliher 1975-5-6 95 Yuba 100 feet from duck pond, between two houses, intersection of Frenchtown and New York House Roads. 304 Comment
  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
  CHSC113658  Odontostomum hartwegii L. P. Janeway 2014-5-12 11247 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  RSA712849  Odontostomum hartwegii L. P. Janeway 2006-5-24 8621 Yuba Northern Sierra Nevada Foothills, E side of Ponderosa Way 1.3km N of La Porte Road and Brownsville 686 Comment
  UCR95623  Odontostomum hartwegii C. B. Wolf 1937-5-13 08649 Yuba Sierra Nevada Foothills, 1.6 mi NW of Stanfield Hill, along fork of South Honcut Creek 305 Comment
  SEINET3557365 Image available Odontostomum hartwegii Lewis S. Rose 1939-6-6 39224 Yuba 2 miles southwest of Brownsville. 594 Comment
  SEINET3992117  Odontostomum hartwegii Unknown 1939-6-6 39224 Yuba 2 mi S. W. of Brownsville 594 Comment
  SEINET7042409  Odontostomum hartwegii A. G. Vestal 1963-5-30 s.n. Yuba Road west to Forbestown. Ca 1.5 miles east of Forbestown and 2.6 miles west of Brownsville. Rackerby quadrangle UTM Zone 10, 648106mE, 4372559mN. Comment
  CHSC32098  Oenothera elata subsp. hirsutissima L. Ahart 1977-8-22 1556 Yuba Near irrigation ditch, ca. 4 mi e of Marysville. 40 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
  CHSC63239  Packera eurycephala var. eurycephala Lowell Ahart 1994-6-5 7295 Yuba On the north side of Costa Creek, on the north side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  JEPS88898  Packera eurycephala var. eurycephala Lowell Ahart 1994-6-5 7295 Yuba n side of Forbestown Rd about 3 air mi e Forbestown (n side of Costa Creek); Costa Creek 853 Comment
  JEPS88899  Packera eurycephala var. eurycephala Lowell Ahart 1994-6-5 7295 Yuba n side of Forbestown Rd about 3 air mi e Forbestown (n side of Costa Creek); Costa Creek 853 Comment
  UC1728262  Packera layneae Al Franklin 1997-7-1 97138 Yuba on Ponderosa Way just n La Porte Rd.; Brownsville, Recreation Park Comment
  CHSC44564  Panicum acuminatum Lowell Ahart 1979-6-25 1949 Yuba North of the road, about 2 miles east of Challenge. 640 Comment
  SBBG26331  Panicum acuminatum B. Crampton 1966-6-14 Yuba 1 mi E of Brownsville 731 Comment
  CHSC63312  Panicum acuminatum var. acuminatum Lowell Ahart 1994-6-5 7308 Yuba Meadow on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 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
  UCD32863  Panicum acuminatum var. fasciculatum Beecher Crampton 1964-10-22 7222 Yuba 3 miles east of Browns Valley, dry creek bed Comment
  UCD88528  Panicum acuminatum var. fasciculatum Beecher Crampton 1964-10-22 7222 Yuba 3 miles east of Brown's Valley, Dry Creek. Comment
  UCD88530  Panicum acuminatum var. fasciculatum Beecher Crampton 1965-6-17 7367 Yuba ca. 0.75 mile north of Stanfield Hill, Willow Glen Creek. 396 Comment
  UCD88531  Panicum acuminatum var. fasciculatum Beecher Crampton 1966-6-14 7745 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  SEINET10661915  Panicum capillare Lowell Ahart 2007-10-31 Ahart 14513 Yuba T20N, R5E, southeast 1/4 Section 18. West of the official parking area, strand of Lake Oroville, Foreman Creek Area, about 1 mile south of Highway 1623 (Oroville Quincy Road), about 7 miles (air) northeast of Oroville. 225 Comment
  UCR201937  Panicum capillare George K. Helmkamp, E. A. Helmkamp 2008-10-6 14204 Yuba Sacramento Valley, junction of CA-65 and Ostrom No. 3 Road, southeast of Olivehurst 24 Comment
  CAS-BOT-BC253827  Panicum dichotomiflorum Lowell Ahart 1977-8-31 1546 Yuba Sam Shintaffer Farm, 2 miles NE of Marysville 30 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
  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
  CHSC108224  Parentucellia viscosa Lowell Ahart 2011-6-7 17415 Yuba North of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC93950  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. In nearby pastures. 241 Comment
  JEPS108544  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. In nearby pastures 241 Comment
  SJSU10207  Parentucellia viscosa C. W. Sharsmith 1983-6-6 8788 Yuba near junction of Loma Rica & Fruitland Rds c. 0.5 mi S of La Porte-Quincy Rd 1219 Comment
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May 29 2009
  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
  SBBG121199  Parentucellia viscosa L. Ahart 2007-5-14 13856 Yuba 60 yards N of the third power tower, ca. 0.5 mi N of Fruitland Rd, ca. 13.5 mi (air) NE of Marysville 29 Comment
  CLARK-A1528-7707  Paspalum dilatatum John C. Roos 1939-7-3 1519 Yuba Comment
  UCD88742  Paspalum dilatatum L. Osborn 1951-11-27 s.n. Yuba Sid Smith's Ranch. Comment
  UC1108681  Paspalum distichum H. R. Bennett 1954-8-6 Yuba 4 mi ne Marysville 22 Comment
  UCD88973  Paspalum urvillei Beecher Crampton 1966-6-14 7749 Yuba 1 mile east of Brownsville. 731 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
  JEPS94627  Paxistima myrsinites Lowell Ahart 1997-8-7 7832 Yuba about 3 air mi e Challenge (on w side of dirt rd., on s side of creek); Indian Creek 762 Comment
  UCD150648  Paxistima myrsinites Collector unknown 1974-5-15 200 Yuba 5.5 mi N of Camptonville on Highway 49. 914 Comment
  CHSC116525  Pedicularis densiflora Lowell Ahart 2015-4-30 20127 A Yuba On the south side of the gravel road, about 10 yards east of the gate, about 3/4 mile (air) southeast of Woodleaf. 948 Comment
  CHSC43517  Pedicularis densiflora Lowell Ahart 1972-4-28 92 Yuba About 3 miles north-east of Strawberry Valley, along the road to Slate Creek. 914 Comment
  JEPS18882  Pedicularis densiflora Rimo Bacigalupi with G. T. Robbins and Fran Chisaki 1956-4-19 5622 Yuba 3.1 mi e of Dobbins (between Dobbns and Bullard Bar Dam, watershed of North Fork of Yuba River, 5.5 mi sw of Bullard Bar Dam); Yuba River 783 Comment
  UCD123328  Pedicularis densiflora W. R. Powell 1968-5-24 1550 Yuba 1 1/4 miles south-southwest of Challenge. 755 Comment
  CHSC117657  Pedicularis racemosa Lowell Ahart 2016-9-9 21343 Yuba On the east side of road, after crossing Slate Creek on Old County Road to Scales, take first road to the right and go about 1/2 mile, near Stowman Ravine, about 3 miles (air) southwest of Poverty Hill Mine, about 8 miles (air) southwest of La Porte. 1214 Comment
  UC1861770  Pellaea Ruth Kirkpatrick 2005-7-17 1356 Yuba ca. 0.4 mi N of bridge over middle fork of Yuba River on Hwy 49 502 Comment
  SEINET6626521  Pellaea mucronata A. Tiehm 1975-1 651 Yuba U.C. Sierra Foothill Field Station Comment
  RSA101686  Pellaea mucronata Pelton 1877-1 s.n. Yuba [no locality information provided] 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
  SEINET211417 Image available Penstemon azureus James L. Reveal 1971-6-23 2477 Yuba Along California Highway 49, 0.5 mile north of the south Yuba River along a roadcut, about 7 miles north of Yuba City 366 Comment
  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
  UCD23252  Penstemon heterophyllus var. purdyi W. R. Powell 1968-5-15 1496 Yuba 2 miles NE of Dobbins on Fountain House Road. 792 Comment
  RSA789816  Penstemon laetus Rebecca Wenk 2005-10-8 396 Yuba Top of Yuba Pass, along hwy 49. 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
  NY604500  Penstemon laetus var. leptosepalus D. D. Keck 1930-7-25 983 Yuba Bullards Bar Reservoir 457.2 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
  SEINET11262158  Penstemon laetus var. leptosepalus Karl A. Vincent 1987-6-24 4431 Yuba Sierra Nevada, New York Flat. Along N side of LaPorte Rd (CA E21) at jct New York House (Rd) ca 1.8 mi W of Challange.; 0 732 Comment
  UC1238916  Penstemon laetus var. leptosepalus Freed W. Hoffman 1946-6-12 917 Yuba on the Camptonville-Dobbins road on roadside a few mi w Camptonville; Sierra Nevada, w of Camptonville Comment
  UC423489  Penstemon laetus var. leptosepalus David D. Keck 1930-7-25 982 Yuba Challenge Sierra Nevada, Challenge 731 Comment
  NY604501  Penstemon laetus var. leptosepalus D. D. Keck 1932-7-1 1608 Yuba 1 mile southeast of Log Cabin Service Station, west of Camptonville. 609.6 Comment
  NY604508  Penstemon laetus var. leptosepalus K. A. Vincent 1987-8-10 4504 Yuba Sierra Nevada, New York Flat; along north side of LaPorte Rd. (CA E21) at jct. New York House (Rd.) ca. 1.8 miles west of Challenge. 731.5 Comment
  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
  POM195083  Penstemon laetus var. leptosepalus D. D. Keck 1930-7-25 982 Yuba Challenge. 732 Comment
  RSA668003  Penstemon laetus var. leptosepalus Karl Vincent 1987-6-24 4431 Yuba Sierra Nevada, New York Flat; along N side of LaPorte Rd (CA E21) at jct. New York House (Rd.) ca 1.8 mi W of Challenge. 732 Comment
  RSA668196  Penstemon laetus var. leptosepalus Karl Vincent, Charlotte A. Labbe 1987-8-10 4504 Yuba Sierra Nevada, New York Flat. Along N side of LaPorte Rd (CA E21) at jct. New York House (Rd.) ca 1.8 mi W of Challenge. 732 Comment
  UC1874802  Penstemon laetus var. leptosepalus Karl Vincent, Charlotte Labbe 1987-8-10 4504 Yuba Sierra Nevada, New York Flat; On S-facing roadbank below mxed conifer-hardwood forest along N side of LaPorte Rd. (CA E21) at jct. New York House (Road) ca 1.8 mi W of Challenge. 731 Comment
  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
  UCR195157  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 430 Comment
  CHSC62139  Penstemon newberryi var. newberryi B. Castro 1987-5-8 71 Yuba Ca 0.2 mi SE of bridge over Slate Creek. On edge of Slate Creek Canyon. 1097 Comment
  SEINET12315995  Pentagramma triangularis E. O. Pelton 1878-1 s.n. Yuba no further locality Comment
  CHSC90464  Pentagramma triangularis subsp. triangularis Lowell Ahart 2005-3-11 11601 Yuba On the west side of a large rock outcrop, just east of the poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 386 Comment
  JEPS123933  Pentagramma triangularis subsp. triangularis Lowell Ahart 2015-4-30 20131 Yuba About 1 1/4 mile (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. 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
  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
  JEPS118717  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. French Corral 7.5' quad. 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
  JEPS118647  Perideridia kelloggii L. P. Janeway 2010-8-11 10139 Yuba Northern High Sierra Nevada. Plumas National Forest; under the power lines about 150 m northwest of Oregon Hill Road 2.2 road km north of Marysville Road; about half way between Oregon Peak and Summit Hill. Comment
  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
  CHSC69129  Perideridia lemmonii Lowell Ahart 1997-8-7 7824 Yuba On the east side of the dirt road, near an unnamed stream, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  JEPS95124  Perideridia lemmonii Lowell Ahart 1997-8-7 7824 Yuba about 3 air mi se of Challenge (on e side of the dirt road, near an unnamed stream, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  UC1389942  Perideridia lemmonii T. I. Chuang and R. Bacigalupi 1963-8-1 5909 Yuba Comment
  SD236379  Persicaria hydropiper G. K. Helmkamp, E. A. Helmkamp 2006-10-10 11528 Yuba Northern Sierra Nevada Mountains Foothills: along Hwy Ca-49 just north of Nevaday county line at the Middle Yuba River Bridge. 451 Comment
  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
  CAS-BOT-BC419169  Persicaria maculosa B. Crampton 1957-6-5 4126 Yuba 2.6 miles northeast Brown's Valley Post Office Comment
  CAS-BOT-BC419309  Persicaria punctata A. Starker Leopold 1956-7-18 s.n. Yuba 3 miles n.w. of Rio Oso Post Office Comment
  CHSC116117  Persicaria punctata Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20640 Yuba On the bottom of the outflow area at the bottom of Lake Francis Dam, Lake Francis, about 1-1/2 miles south of Dobbins. 479 Comment
  CHSC76291  Persicaria punctata Lowell Ahart 1999-9-17 8243 Yuba On the margins of a rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  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
  UCD37844  Petrorhagia dubia Beecher Crampton 1962-4-24 6241 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD37858  Petrorhagia dubia Beecher Crampton 1962-4-24 6264 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD37867  Petrorhagia dubia Beecher Crampton 1962-4-24 6283 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCR231321  Petrorhagia dubia George K. Helmkamp, E. A. Helmkamp 2011-5-6 17207 Yuba East edge of Sacramento Valley, junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg. ) of Wheatland 56 Comment
  SEINET5337023  Petrorhagia dubia C. Aarstad 1979-4-28 s.n. Yuba At junction of Rt. 20 and north fork of Yuba in Browns Valley 183 Comment
  SEINET5337024  Petrorhagia dubia D. Selleck 1979-4-27 s.n. Yuba Sierra Field Station-UC Davis Comment
  SEINET5337378  Petrorhagia dubia W. Short 1959-4-11 s.n. Yuba 5 miles west of Smartville, Calif. on California highway 20. 366 Comment
  UCD98374  Petrorhagia dubia Mary Anne Brayton 1964-5-2 22 Yuba Harry L. Englebright Dam, State Highway 20, 20 miles northwest of Marysville. 182 Comment
  UCD98394  Petrorhagia dubia Barbara Yungert 1974-4-12 24 Yuba Along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  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
  UC735048  Phacelia egena Lincoln Constance, Howard E. McMinn 1946-5-11 3039 Yuba 6 mi n Stanfield Hill 563 Comment
  RSA10981  Phacelia humilis var. humilis Carl B. Wolf 1927-11-5 1440 Yuba Eight miles from Marysville on road to Browns Valley. Comment
  CHSC8261  Phalaris aquatica J. G. Moore 1969-5-4 35 Yuba Hwy. 20, 300 yds. w of 7 mi. House on s side of road growing in ditch next to rice fields. [Label incorrectly says Nevada County]. 91 Comment
  UCD88039  Phalaris aquatica Beecher Crampton 1971-6-18 8730 Yuba 5 miles E of Marysville, along State Hwy. 20. Comment
  UCD88331  Phalaris aquatica Barbara Yungert 1974-5-9 G- 6 Yuba Sierra Foothill Field Station. Along Road 1, near P 1-13 fence, W of Porter Hill. Comment
  CHSC96991  Phalaris arundinacea L. P. Janeway; Lowell Ahart, Linnea Hanson 2007-7-13 9117 Yuba Northern High Sierra Nevada. Plumas National Forest; Hampshire Creek meadow, 1.5 air km east of Clipper Mills and 1.8 air km northwest of North Yuba River. Just east of the road crossing the meadow. 1026 Comment
  JEPS113405  Phalaris minor Lowell Ahart 2007-5-14 13843 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  UCD89167  Phalaris minor Beecher Crampton 1957-6-5 4124 Yuba 10 miles E of Marysville. Along State Hwy. 20. Comment
  UCD89371  Phalaris paradoxa Beecher Crampton 1957-6-5 4145 Yuba 1/2 mile W of Oregon House Post Office. Comment
  UCD89386  Phalaris paradoxa Beecher Crampton 1971-6-18 8731 Yuba 3.5 miles E of Browns Valley, E of Sicard Flat. Comment
  CAS-BOT-BC72715  Philadelphus lewisii Rimo Bacigalupi 1927-7-2 1594 Yuba highway to Downieville about 8 miles northeast of Camptonville Comment
  UCD82845  Philadelphus lewisii Robin McMaster 1973-6-24 499 Yuba Oregon Creek Campground. Comment
  UCR194907  Philadelphus lewisii George K. Helmkamp, E. A. Helmkamp 2007-5-26 12130 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville 802 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
  UCD89619  Phleum pratense Beecher Crampton 1965-6-17 7386 Yuba 3.8 miles s.e. of Bangor, Las Vergeles Road. Comment
  CHSC10810  Phlox speciosa subsp. occidentalis Lowell Ahart 1969-4-8 Yuba Near Dobbins. 365 Comment
  CHSC44340  Phlox speciosa subsp. occidentalis Lowell Ahart 1976-4-15 1071 Yuba Along Ponderosa Way and near the Brownsville dump, about 1 mile west of Brownsville. 457 Comment
  UC1186135  Phlox speciosa subsp. occidentalis Herbert L. Mason 1927-5-10 3729 Yuba near Dobbins Comment
  POM202706  Phlox speciosa subsp. occidentalis J. E. Cramsie 1932-5-1 s.n. Yuba Smartville. Comment
  UCD112036  Phoradendron bolleanum Christopher Mallek 2008-5-5 IC3- 5 Yuba Indiana Creek. 617 Comment
  JEPS94626  Phytolacca americana Lowell Ahart 1997-8-7 7820 Yuba Peterson Ridge Rd. about 3 air mi se Challenge (e side of small stream (branch of creek) on s side of dirt road); Little Oregon Creek 762 Comment
  CHSC32100  Pilularia americana L. Ahart 1977-9-25 1591 Yuba Sam Shintaffer Farm, 2 mi ne of Marysville. 35 Comment
  UCD134969  Pinus ponderosa Barbara Yungert 1974-6-5 194 Yuba North of Yuba River, H 8-11 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC72816  Pinus sabiniana Saichi Kawahara 1968-4-13 296 Yuba Park's Bar, Highway 20 at north bank Yuba River. 91 Comment
  HSC1544  Pinus sabiniana R. A. Magie 1964-3-27 18 Yuba 15 mi. W of Grass Valley on Hwy. 20 Comment
  UCD139003  Piperia elegans Kenneth Stewart 1964-6-26 s.n. Yuba 2 miles northeast of Challenge. 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
  SD237382  Plagiobothrys David Charlton 2005-5-16 8012 Yuba Sacramento Valley: Yuba Gold Field; just S of Yuba River; ca. 7.5 miles ENE of Marysville; N of Beale Air Force Base; Survey area ca. 2 mi by 1 mi (Browns Valley 7.5'Q) 35 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
  SBBG33961  Plagiobothrys bracteatus L. S. Rose 1967-6-13 67128 Yuba Camp Far West Reservoir, 7 mi NE of Wheatland 121 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
  JEPS94320  Plagiobothrys fulvus Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7728 Yuba about 17 mi ne of Marysville (n of the poor dirt road, s of Dry Creek, about 1 1/4 mi e of Scott Forbes Road (Long Bar Road)) 137 Comment
  RSA726777  Plagiobothrys glyptocarpus L. Ahart 2007-4-17 13682 Yuba Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5.5 miles (air) northeast of Loma Rica. 293 Comment
  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
  CHSC97456  Plagiobothrys glyptocarpus var. glyptocarpus Lowell Ahart 2007-5-12 13780 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  SEINET10910078  Plagiobothrys glyptocarpus var. glyptocarpus Lowell Ahart 2007-4-17 Ahart 13682 Yuba T17N, R5E, northeast 1/4 Section 13. Normal size plants, on dry rocky soil, 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. Foothill Woodland. 293 Comment
  JEPS113632  Plagiobothrys greenei Lowell Ahart 2007-5-12 13778 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
  CAS-BOT-BC228240  Plagiobothrys hispidulus Lowell Ahart 1980-8-12 2569 Yuba Along Slate Creek 1250 Comment
  CHSC46764  Plagiobothrys hispidulus Lowell Ahart 1980-8-12 2569 Yuba On a gravel bar across Slate Creek, west of Gold Run Creek, east of Onion Creek, about 7 miles south of La Porte. 1158 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
  UCD120936  Plagiobothrys nothofulvus Barbara Yungert 1974-4-14 31 Yuba Meathook project area, Sierra Foothill Field Station. 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
  CHSC82394  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2002-6-3 9688 Yuba On the bottom of the pond spillway, second small man made pond, about 1/4 mile south of Long Ravine Road, about 1/8 mile east of the intersection of Camp Far West Road and Long Ravine Road there is a poor Texas gate on the south side of the road, north of Camp Far West Reservoir. 102 Comment
  JEPS103277  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2002-6-3 9688 Yuba Bottom of pond spillway, second small man made pond, ca 1/4 mile south of Long Ravine Road, ca 1/8 mile east of the intersection of Camp Far West Road and Long Ravine Road, north of Camp Far West Reservoir 102 Comment
  JEPS118288  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2011-6-7 17387 Yuba Bottom of a depression at the base of cliffs, to the north is a huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  JEPS123937  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2015-4-30 20132 Yuba About 1 1/4 mile (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. Comment
  RSA795347  Plagiobothrys stipitatus var. micranthus L. Ahart 2011-6-7 17387 Yuba Bottom of a depression at the base of cliffs, to the north is a huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 air miles northeast of Marysville. 66 Comment
  SEINET13203148 Image available Plagiobothrys stipitatus var. micranthus George K. Helmkamp, Amy Barnes 2013-1 20250 Yuba Eastern Sacramento Valley: northbound exit road from CA-65, connecting with Forty Mile Road (Olivehurst 7.5' Q.) 30 Comment
  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
  CHSC97480  Plantago coronopus Lowell Ahart 2007-5-12 13801 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS113412  Plantago coronopus Lowell Ahart 2007-5-12 13801 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  RSA747892  Plantago coronopus James R. Shevock, Bob Holland 1985-5-6 11131 Yuba Beale Air Force Base E of Marysville. Pools adjacent to runway. 40 Comment
  CHSC97494  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
  CHSC59561  Plantago erecta H. E. Mac Lennan 1992-4-15 15 Yuba 20 air mi se of Oroville. 487 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
  JEPS113415  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
  JEPS113485  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
  SEINET9774346 Image available Plantago lanceolata Richard Carter 2006-7-31 Yuba 12.5 mi ENE Marysville jct. Hwy CA 20 and Hwy CA 70, by Hwy CA 20 Comment
  UCD124618  Plantago lanceolata Barbara Yungert 1974-5-6 119 Yuba In backyard of house, south of headquarters, Sierra Foothill Field Station. Comment
  CHSC106054  Platanthera leucostachys Lowell Ahart 2010-7-27 16918 Yuba Along small streams in the meadow, on the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. 1219 Comment
  CHSC63204  Platanthera leucostachys Lowell Ahart 1994-6-27 7390 Yuba Near the south-east side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  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
  UCD82075  Platystemon californicus Robin McMaster 1973-4-7 221 Yuba Browns Valley, Peoria Cemetery. Comment
  UCD137572  Plectritis ciliosa Kathleen Keliher 1975-4-11 57 Yuba along dirt road, ca. 1 mile from picnic area, F-2 project area, Sierra Foothill Field Station. 152 Comment
  UCD137588  Plectritis ciliosa Barbara Yungert 1974-4-16 41 Yuba Campbell Valley, Sierra Foothill Field Station. Comment
  UC912454  Plectritis ciliosa subsp. ciliosa Herbert L. Mason 1927-5-11 3731 Yuba near Dobbins 457 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
  CAS-BOT-BC255062  Poa compressa Lowell Ahart 1977-11-13 s.n. Yuba Found about 5 miles E of Strawberry Valley, near the bridge across Slate Creek, near the edge of the road 1000 Comment
  UCD90855  Poa compressa Beecher Crampton 1971-6-18 8732 Yuba Sierra Foothill Range Field Station. Ca. 6 miles east of Browns Valley. Comment
  CHSC97762  Poa palustris Lowell Ahart 2007-11-1 14538 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  JEPS115067  Poa palustris Lowell Ahart 2007-11-1 14538 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  CAS-BOT-BC255963  Poa pratensis Lowell Ahart 1979-6-3 s.n. Yuba 1 mi. S of Challenge 700 Comment
  CHSC44587  Poa pratensis Lowell Ahart 1979-6-25 1942 Yuba About 1 mile south of Challenge, in a logged over area. 640 Comment
  CHSC8576  Poa pratensis Dave Isle 1969-4-29 428 Yuba On a lawn two doors N. of the Chevron station (W. side of street) at the E.-7th St. intersection in Marysville. 57 Comment
  UCD91883  Poa pratensis Beecher Crampton 1962-4-24 6288 b Yuba 5 miles east of Browns Valley, Sierra Foothill Range Field Station. Comment
  CHSC112127  Poa pratensis subsp. angustifolia L. P. Janeway; James Nixon, Eduardo Gonzales 2014-6-2 11428 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow opening just northeast of Little Oregon Creek and 0.2 km east of Oregon Hill Road; 7.3 air-km southeast of Challenge. 625 Comment
  UCD33111  Poa trivialis Beecher Crampton 1966-6-14 7756 Yuba Yuba County, 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
  CHSC97633  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
  UCSC008274  Pogogyne zizyphoroides Lowell Ahart 2007-5-12 13797 Yuba 28 Comment
  CDA43443  Polygala cornuta Jan Kendal 2015-5-27 PDR# 510 P06303312 Yuba Loma Rica. 0 Comment
  CAS-BOT-BC170373  Polygala cornuta var. cornuta Clarence R. Quick 1966-6-28 66 -32 Yuba Challenge Ranger Station, Challenge 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-BC170375  Polygala cornuta var. cornuta Lowell Ahart 1979-6-25 s.n. Yuba 2 miles east of Challenge 700 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
  CAS-BOT-BC110539  Polygonum Lowell Ahart 1977-8-31 s.n. Yuba Found 2 miles northeast of Marysville. On the Sam Shintaffer Farm. 35 Comment
  CHSC97454  Polygonum aviculare Lowell Ahart 2007-5-14 13879 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  UCR191119  Polygonum aviculare George K. Helmkamp, E. A. Helmkamp 2007-8-29 12825 Yuba Northern Sierra Nevada Mountains Foothills, Mountain House Road 0.6 mile west of the Sierra Co. line; Sleighville area beside Willow Creek 1021 Comment
  CHSC66902  Polygonum californicum Lowell Ahart 1996-11-11 7708 Yuba In an open pasture field, about 1/2 mile north of the intersection of Iowa City Road and Fruitland Road, about 5 miles west of Loma Rica. 60 Comment
  RSA654916  Polygonum californicum Beecher Crampton 1952-10-31 901 Yuba Yolo County: Dry adobe, alkaline soil, where water has stood, Yolo Causeway, 5 miles E of Davis Comment
  JEPS50639  Polygonum persicaria W. L. Jepson 1934-7-29 16755 Yuba Marysville 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
  UCR189620  Polygonum persicaria George K. Helmkamp, E. A. Helmkamp 2007-8-29 12835 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 Comment
  CAS-BOT-BC419876  Polygonum polygaloides subsp. confertiflorum Lowell Ahart 2007-5-14 13853 Yuba About 100 yards east of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville. 29 Comment
  JEPS35373  Polypodium calirhiza Mrs. S. M. Rust Yuba Comment
  CAS-BOT-BC232956  Polypogon australis Peter Rubtzoff 1972-4-4 6725 Yuba UC Sierra Foothill Range Field Station, N of Smartville Comment
  UCD90518  Polypogon australis Beecher Crampton 1965-6-17 7374 Yuba Ca. 3/4 mile north of Stanfield Hill, Willow Glen Creek. 396 Comment
  JEPS118320  Polypogon interruptus Lowell Ahart 2011-6-7 17426 Yuba East of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCD51641  Polypogon interruptus Beecher Crampton 1962-4-24 6310 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  CAS-BOT-BC232533  Polypogon maritimus Beecher Crampton 1957-6-5 4114 Yuba Along State Highway 20, 10 miles E of Marysville Comment
  CAS-BOT-BC233243  Polypogon maritimus Gordon H. True; J. T. Howell 1967-6-13 3560 Yuba Edge of reservoir, Camp Far West Reservoir on Bear River E of Wheatland 60 Comment
  UCD91182  Polypogon maritimus Beecher Crampton 1957-6-5 4114 Yuba Along State Hwy. 20, 10 miles east of Marysville. Comment
  UC1153916  Polypogon maritimus Beecher Crampton 1957-6-5 4114 Yuba along State Hwy. 20, 10 miles east of Marysville Comment
  JEPS113403  Polypogon monspeliensis Lowell Ahart 2007-5-14 13882 Yuba Dry red bare soil, on the bottom of a swale, about 250 yards west of the power tower, power tower is about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  UCD91288  Polypogon monspeliensis Beecher Crampton 1957-6-5 4111 Yuba Along State Hwy. 20, 5 miles east of Marysville. Comment
  CHSC39642  Polystichum imbricans subsp. curtum Tom Hughes 1982-7-18 34 Yuba 1/2 mile north of SR 49 on Pendola Ranch Rd. Comment
  CHSC116296  Polystichum imbricans subsp. imbricans Lowell Ahart 2015-10-23 20579 Yuba On the west side of road to Slate Creek, about 1/8 mile southwest of Slate Creek Dam, about 2 1/8 miles (air) northeast of La Porte Road, about 6 miles (air) southwest of La Porte. 1163 Comment
  UCD162088  Polystichum imbricans subsp. imbricans G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12823 Yuba Northern Sierra Nevada Mountains: Mountain House Road 0.6 miles west of the Sierra Co. line; Sleighville area beside Willow Creek. 1021 Comment
  CAS-BOT-BC76760  Polystichum imbricans subsp. imbricans W. R. Dudley 1893-6-15 s.n. Yuba Unspecified. 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
  CHSC113178  Portulaca oleracea Lowell Ahart 2013-11-30 19305 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  CDA18955  Potamogeton illinoensis E. Finley, Koschnick 2000-6-14 PDR 1013548 Yuba Yuba County irrigation canal, Oregon House. 0 Comment
  CDA37686  Potamogeton nodosus Robin Breckenridge 2004-6-15 s.n. Yuba Oregon House, Yuba County Irrigation Canal. 0 Comment
  CDA18836  Potamogeton pectinatus R. Breckenridge, Morse 1999-7-22 PDR 958961 F Yuba Lake Pillsbury, Upper Lake. 0 Comment
  CDA854  Potamogeton pusillus var. pusillus L. Ahart 2002-6-3 9687 Yuba Small man made pond, about 1/4 mile S of Long Ravine Road, about 1/8 mile E of the intersection of Camp Far West Road and Long Ravine Road there is a poor Texas gate on the S side of the road, N of Camp Far West Reservoir. 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
  CHSC113663  Poterium sanguisorba L. P. Janeway 2014-5-12 11249 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  CHSC63168  Poterium sanguisorba Lowell Ahart 1994-6-27 7374 Yuba In about the center of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  UCD113987  Poterium sanguisorba Barbara Yungert 1974-5-9 144 Yuba Southern SC-14 project area, Sierra Foothill Field Station. Comment
  UCD38715  Prunella vulgaris Beecher Crampton 1957-6-5 4138 Yuba 1 mile east of Stanfield Hill. Comment
  JEPS100264  Prunus avium Dean W. Taylor 2001-5-9 17637 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  CAS-BOT-BC154618  Prunus subcordata Alice Eastwood 1930-4-12 17929 Yuba Near summit of Texas hill Comment
  UCD113515  Prunus subcordata Kathleen Keliher 1975-5-6 97 Yuba near Frenchtown Road, north of Dobbins. 365 Comment
  CHSC108219  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
  CHSC97693  Pseudognaphalium luteoalbum Lowell Ahart 2007-11-1 14534 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  JEPS115027  Pseudognaphalium luteoalbum Lowell Ahart 2007-11-1 14534 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  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
  CHSC113681  Pseudognaphalium thermale L. P. Janeway 2014-6-24 11418 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
  CHSC69412  Pseudognaphalium thermale Lowell Ahart 1997-8-30 7881 Yuba On the west side of the dirt road, near a road culvert, about one mile (air) south of Woodleaf. 944 Comment
  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
  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
  CHSC97475  Psilocarphus oregonus Lowell Ahart 2007-5-12 13774 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113414  Psilocarphus oregonus Lowell Ahart 2007-5-12 13774 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  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
  CAS-BOT-BC72530  Pteridium aquilinum Lowell Ahart 1979-6-3 s.n. Yuba 1 mile S of Challenge 700 Comment
  CHSC97461  Pteridium aquilinum var. pubescens Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-9-18 14500 Yuba Under trees, Hampshire Creek Meadow, about 80 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. 1015 Comment
  UCR206953  Pteridium aquilinum var. pubescens George K. Helmkamp, E. A. Helmkamp 2009-5-28 14825 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 Comment
  SEINET7085243  Pterospora andromedea Steven R. Hill 2010-7-17 38554 Yuba Along La Porte Road, 950 feet northeast of Travis Saddle and the road to Sly Creek Reservoir Dam. 13.6 kilometers north-northwest of Camptonville. Just southwest of Strawberry Valley Sierra Nevada. Coordinate Datum: WGS84/NAD83. 1103 Comment
  CHSC90343  Pterostegia drymarioides Lowell Ahart 2005-3-11 11617 Yuba Large rock outcrop, south slope, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 395 Comment
  RSA715486  Pterostegia drymarioides L. Ahart 2005-3-11 11617 Yuba 1/2 miles W of Marysville road, 1/2 mile N of Parking area 3, Dauherty Hill Wildlife area, Donovan Hill Management Area, 1/2 mile N of Loma Rica Road, 5 miles air NE of Loma Rica. 395 Comment
  CHSC51230  Pycnanthemum californicum Lowell Ahart 1977-7-31 1505 Yuba Growing along the edge of a small stream, about 1 air mile south of Challenge. 670 Comment
  CAS-BOT-BC328152  Pyrrocoma lucida L. S. Smith 1935-5-24 2778 Yuba Near Camptonville near highway 762 Comment
  UCD47014  Quercus X morehus H. H. Keifer 1953-10-11 s.n. Yuba Tree at lake near Dobbins, 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
  UCD40459  Quercus chrysolepis Rodney Gale Myatt 1972-1 1484 -11 Yuba Lake Francis. Lower edge of small creek (dry in summer), which empties into a small, damned basin. 550 Comment
  UCD40460  Quercus chrysolepis Rodney Gale Myatt 1971-11-1 1524 -5 Yuba Oregon Creek-Middle Fork Yuba River. Yuba River where smaller Oregon Creek is confluent. 640 Comment
  UCD40461  Quercus chrysolepis Rodney Gale Myatt 1973-7-1 1592 -2 Yuba Bullard's Bar Dam. 550 Comment
  UCD82665  Quercus chrysolepis Rodney Gale Myatt 1972-1 1484 -8 Yuba Lake Francis. Lower edge of small creek (dry in summer), which empties into a small, damned basin. 550 Comment
  UCD82667  Quercus chrysolepis Rodney Gale Myatt 1971-11-1 1524 -1 Yuba Oregon Creek-Middle Fork Yuba River. Yuba River where smaller Oregon Creek is confluent. 640 Comment
  UCD82669  Quercus chrysolepis Rodney Gale Myatt 1973-7-1 1592 -9 Yuba Bullard's Bar Dam. 550 Comment
  CAS-BOT-BC86015  Quercus douglasii Carl B. Wolf 1930-10-12 1737 Yuba along Yuba River near Hammonton 152 Comment
  CAS-BOT-BC86017  Quercus douglasii Carl B. Wolf 1930-10-12 1739 Yuba along the Yuba River near bridge on Browns Valley to Smartville Road 152 Comment
  UCD45722  Quercus douglasii Barbara Yungert 1974-6-5 196 Yuba Along Road 4, SC-13 project area, Sierra Foothill Field Station, Yuba County, California. 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
  CHSC47426  Quercus durata var. durata Lowell Ahart 1976-7-11 999 Yuba Near the intersection of Forbestown Road and Abernathy Road, about 3 miles north of Challenge. 853 Comment
  JEPS88905  Quercus durata var. 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
  UCD80342  Quercus garryana var. breweri CNPS SN Foothill Team 2005-6-1 SNNR 0128 Yuba BLM, Ponderosa Landfill. 670 Comment
  CAS-BOT-BC94268  Quercus garryana var. semota Lowell Ahart 1981-8-7 3021 Yuba Near the Brownsville Dump, about 2 miles SW of Brownsville 600 Comment
  CDA22096  Quercus kelloggii H. H. Keifer 1953-10-11 Yuba Lake northeast of Dobbins. 0 Comment
  JEPS113099  Quercus kelloggii Lowell Ahart 2007-4-17 13685 Yuba On the north side of the poor dirt fireguard, about 50 yards northwest of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  UCD46660  Quercus kelloggii Barbara Yungert 1974-6-5 197 Yuba East Road 4, L 1-21 project area, Sierra Foothill Field Station, Yuba County, California. Comment
  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
  UCD112042  Quercus wislizeni Christopher Mallek 2008-5-5 IC3- 11 Yuba Indiana Creek. 617 Comment
  CHSC90462  Quercus wislizeni var. wislizeni Lowell Ahart 2005-3-11 11621 Yuba On the east side of the poor dirt road, about 1/2 mile west of Marysville Road, about 1/4 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/4 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 344 Comment
  JEPS98461  Ranunculus aquatilis Lowell Ahart 2000-6-11 8466 Yuba 6 air miles S of Smartville (a N branch of Dry Creek, 100 yds W of Smartville Road, 2 mi N of the int of Waldo Road and Smartville Road) 146 Comment
  CHSC78161  Ranunculus aquatilis var. aquatilis Lowell Ahart 2000-6-11 8466 Yuba On the bottom of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  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
  UCD95785  Ranunculus arvensis Beecher Crampton 1957-6-5 4127 Yuba 2.6 miles northeast of Brown's Valley Post Office. Comment
  CAS-BOT-BC263233  Ranunculus bonariensis var. trisepalus Lowell Ahart 2007-5-12 13811 Yuba About 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CAS-BOT-BC523900  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
  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
  UCD82079  Ranunculus californicus Robin McMaster 1973-4-7 237 Yuba Browns Valley, Dry Creek. Comment
  CHSC96492  Ranunculus hebecarpus Lowell Ahart 2007-4-17 13693 Yuba West of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  JEPS113096  Ranunculus hebecarpus Lowell Ahart 2007-4-17 13693 Yuba West of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  RSA21289  Ranunculus hebecarpus Carl B. Wolf 1937-5-13 8634 Yuba Sierra Nevada Foothills, 2.7 miles below Stanfield Hill on road to Browns Valley. 183 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
  CHSC63161  Ranunculus occidentalis Lowell Ahart 1994-6-27 7373 Yuba In about the center of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  JEPS87731  Ranunculus occidentalis Lowell Ahart 1994-7-27 7373 Yuba about 4 mi ne Strawberry Valley (e side of La Porte Rd, in about center of meadow); Schwartz Meadow 1219 Comment
  JEPS97387  Ranunculus occidentalis Lowell Ahart 1994-7-27 7373 Yuba about 4 mi ne Strawberry Valley (e side of La Porte Rd, in about center of meadow); Schwartz Meadow 1219 Comment
  UCR257543  Ranunculus occidentalis George K. Helmkamp 2014-4-17 22761 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
  UCD96793  Ranunculus occidentalis R. O. Hanes 1992-4-6 48 Yuba Plumas Forest. 731 Comment
  UCD96949  Ranunculus occidentalis Barbara Yungert 1974-4-4 3 Yuba Sierra Foothill Field Station. Along dirt road north of Yuba River, F-2 project area. Comment
  RSA21294  Ranunculus occidentalis var. eisenii Carl B. Wolf 1937-5-13 8639 Yuba Sierra Nevada Foothills, 2.7 miles below Stanfield Hill on road to Browns Valley. 183 Comment
  CHSC110341  Ranunculus occidentalis var. occidentalis L. P. Janeway; Tim Hanson 2013-4-25 11090 Yuba Northern High Sierra Nevada. Plumas National Forest; headwaters area of Burnt Bridge Creek; between Oregon Hill Road and Oregon Hills; 1.8 air km north of Oregon Peak. 828 Comment
  CHSC45408  Ranunculus pusillus Lowell Ahart 1978-4-21 1658 Yuba Along the edge of a rice field, on the Sam Shintaffer Farm, west of Kimball Lane, about 2 miles north-east of Marysville. 30 Comment
  SD236247  Raphanus raphanistrum G. K. Helmkamp, E. A. Helmkamp 2008-10-6 14211 Yuba Sacramento Valley; Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst (Olivehurst 7.5'Q) 20 Comment
  RSA318096  Raphanus raphanistrum Fields 1969-4-27 25 Yuba Mariposa and Douglas AVe in El Segundo Comment
  CHSC100772  Rhamnus crocea L. P. Janeway 2008-5-11 9355 Yuba Northern High Sierra Nevada. About 0.8 km north-northeast of Challenge; Golden Gate Ravine side of the ridge between that and Jordan Creek; west side of Road 19N04 1.1 km north-northwest of Challenge-La Porte Road. Near head of dry northwest-sloping swale. 994 Comment
  CAS-BOT-BC59383  Rhamnus ilicifolia Carl B. Wolf 1927-11-6 1449 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CHSC113645  Rhamnus ilicifolia L. P. Janeway 2014-5-12 11250 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  JEPS117940  Rhamnus ilicifolia L. P. Janeway 2008-5-11 9355 Yuba About 0.8 km north-northereast of Challenge of Challange-La Porte Road (Golden Gate Ravine side of the ridge between that and Jordan Creek; west side of Road 19N04 1.1 km north-northwest); Northern High Sierra Nevada 994 Comment
  OBI5939  Rhamnus ilicifolia Carl B. Wolf 1927-11-6 1449 Yuba Browns Valley to Smartsville rd, along left bank of Yuba river, near bridge 152 Comment
  RSA7702  Rhamnus ilicifolia Carl B. Wolf 1927-11-6 1448 Yuba Along the Yuba River near bridge on the Browns Valley to Smartsville Road. Comment
  RSA7795  Rhamnus ilicifolia Carl B. Wolf 1927-11-6 1449 Yuba Along the Yuba River near bridge on the Browns Valley to Smartsville Road. Comment
  JEPS94514  Rhamnus rubra Lowell Ahart 1997-8-7 7822 Yuba about 3 air mi se of Challenge (on the e side of the dirt road, near an unnamed stream, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  RSA742591  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1930-10-12 1738 Yuba Along the Yuba River near Hammondon 152 Comment
  RSA7866  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba Along the Yuba River near bridge on the Browns Valley to Smartsville Road. Comment
  UC592707  Rhamnus tomentella subsp. tomentella C. B. Wolf and E. R. Johnson 1934-10-4 Yuba 2 mi w Dobbins; Sierra Nevada Foothills, Texas Hill 457 Comment
  UC592779  Rhamnus tomentella subsp. tomentella unknown 1927-11-5 1444 Yuba Browns Valley to Smartsville road (along left bank of Yuba River, near bridge); Yuba River 152 Comment
  UC592956  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1930-10-12 Yuba near bridge on the Brown's Valley to Smartsville road (along Yuba River, Sierra Nevada foothills); Sierra Nevada, Yuba River 152 Comment
  UC566050  Rhododendron occidentale M. A. Elvin 1933-7-14 53 Yuba Greenville 762 Comment
  UCD33118  Rhododendron occidentale Beecher Crampton 1966-6-14 7740 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  RSA121960  Rhododendron occidentale var. californicum M. A. Elvin 1933-7-14 53 Yuba Greenville. Comment
  JEPS127617  Rhynchospora capitellata L. P. Janeway 2015-7-1 11796 Yuba Plumas National Forest; Headwaters of Cottage Creek, one of a series of meadows; 0.15 km SW of Oregon Hill Road, 1.3 air km NE of Oregon Peak. Comment
  SEINET5339726  Ribes nevadense B. M. Cunningham 1960-5-15 s.n. Yuba Along the Feather River Canyon on highway 40 alt. four miles west of Beldon, CA. 457 Comment
  CHSC97695  Rorippa curvisiliqua var. curvisiliqua Lowell Ahart 2007-11-1 14542 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  CHSC81770  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2001-11-2 9398 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  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
  JEPS110504  Rorippa curvisiliqua var. occidentalis Robert E. Preston 1997-10-29 1057 Yuba Beale Air Force Base, E of Golf Course. 39 Comment
  CHSC81771  Rorippa curvisiliqua var. orientalis Lowell Ahart 2001-11-2 9397 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 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
  CHSC97750  Rorippa curvisiliqua var. orientalis Lowell Ahart 2007-11-8 14587 A Yuba North of the waterway between the headland and the large island, on the strand of Camp Far West Reservoir, about 1/4 mile south of Rock Creek, about 1/2 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  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
  CAS-BOT-BC74802  Rorippa palustris var. palustris Lowell Ahart 1977-8-31 s.n. Yuba Sam Shintaffer Farm, 2 miles northeast of Marysville. 30 Comment
  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
  CHSC43460  Rosa bridgesii Lowell Ahart 1973-5-6 218 Yuba About 1 mile north of Challenge. 762 Comment
  JEPS102599  Rosa bridgesii Lowell Ahart 2001-8-2 9052 Yuba On the south edge of the dirt road, Peterson Ridge Road, about 2 miles NE of Oregon Hill Road, about 3 miles (air) SE of Challenge. 701 Comment
  JEPS108555  Rosa bridgesii L. P. Janeway 2006-5-24 8611 Yuba Northern High Sierra Nevada Foothills. Along Ponderosa Way 1.0 road km southeast of Robinson Mill Road; 1.2 air km southeast of Robinson Mills & Forbestown Road 768 Comment
  RSA712870  Rosa bridgesii L. P. Janeway 2006-5-24 8611 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way 1.0 road km SE of Robinson Mill Rd. 1.2 air km SE of Robinson Mills and Forbestown Road. 768 Comment
  UCD113387  Rosa bridgesii Kathleen Keliher 1975-5-30 119 Yuba Along New York Flat Road, W of Forbestown. 822 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
  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
  CDA14569  Rosa eglanteria G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3047 Yuba La Porte - Quincy Road 3.6 miles northeast of Strawberry Valley at the Plumas county line. 1280 Comment
  CDA3958  Rosa eglanteria T. C. Fuller, H. K. Wagnon 1964-5-18 11987 Yuba North of Highway 20 to Grass Valley, 0.8 mile east of Smartsville. 0 Comment
  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
  JEPS95029  Rosa gymnocarpa Lowell Ahart 1997-8-7 7817 Yuba Peterson Ridge Rd. ca. 3 mi. (air) s.e. Challenge (bottom of small stream - a branch of Little Oregon Creek, on w. side of dirt rd.) 762 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
  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
  CHSC47446  Rotala indica Lowell Ahart 1977-8-31 1560 Yuba Growing in shallow water in a rice field, on the Sam Shintaffer Farm, about 2 miles north-east of Marysville. 27 Comment
  SD130473  Rotala indica Lowell Ahart 1977-8-31 Yuba 2.0 miles northeast of Marysville; Sam Shintaffer Farm. 29 Comment
  CHSC116113  Rotala ramosior Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20650 Yuba North of the spillway area, at the west side and near top of Lake Francis Dam, below the high water line of Lake Francis, about 1-1/2 miles south of Dobbins. 512 Comment
  SEINET13710396  Rotala ramosior Lowell William Ahart, Lowell William Ahart 1999-1 8246 Yuba 5 Air Mi NE Marysville Comment
  UCD113562  Rubus armeniacus D. H. Hartmann 1941-10-11 s.n. Yuba 15 miles east of Marysville, along U.S. #20. Comment
  JEPS118292  Rubus discolor Lowell Ahart 2011-6-7 17410 Yuba Along the edge of the dirt road, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  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
  SEINET3016174  Rubus laciniatus L. Ahart 1997-8-7 7815 Yuba On the bottom of a small stream, a branch of Little Oregon Creek, on the Wside of the dirt road, Peterson Ridge Rd., about 3 mi (air) SE of Challenge. 762 Comment
  JEPS117304  Rubus pensilvanicus Lowell Ahart 2010-7-27 16923 Yuba Disturbed area of a log landing, about 100 yards north of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam 1219 Comment
  SEINET7706971  Rubus pensilvanicus J. Ridley 1959-4-19 22 Yuba 1 mile East of Smartville, on North side of Highway 20 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
  UCD17937  Rubus ursinus H. Olmo; T. S. Mallah 1953-3-24 53 27 C Yuba California. Yuba County: Highway 28 in Smartville. Comment
  UCD33716  Rubus ursinus Beecher Crampton 1972-6-20 8818 Yuba Yuba County, ca. 3 miles S.W. of Brown's Valley. Comment
  SD236385  Rumex acetosella G. K. Helmkamp, E. A. Helmkamp 2008-5-20 13470 Yuba Sierra Nevada Mountains Foothills: along CA-49, 0.1 miles north of the Nevada Co. line at Oregon Creek. 466 Comment
  UCR206956  Rumex acetosella George K. Helmkamp, E. A. Helmkamp 2009-5-28 14828 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 Comment
  CHSC108225  Rumex conglomeratus Lowell Ahart 2011-6-7 17407 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CAS-BOT-BC421731  Rumex conglomeratus Gordon H. True; J. T. Howell 1967-6-13 3561 Yuba Camp Far West Reservoir on Bear River east of Wheatland 60 Comment
  CAS-BOT-BC421732  Rumex conglomeratus Lewis S. Rose 1940-5-28 40383 Yuba Browns Valley 60 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
  JEPS113628  Rumex pulcher Lowell Ahart 2007-5-14 13868 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
  RSA727115  Rumex pulcher L. Ahart 2007-5-14 13868 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  CHSC97507  Sagina apetala Lowell Ahart 2007-5-12 13787 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  CHSC45582  Sagina saginoides Lowell Ahart 1980-8-12 2572 Yuba On a large gravel bar in Slate Creek, a little below where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  CAS-BOT-BC267096  Sagittaria sanfordii W. V. Middlekauff 1955-7-4 s.n. Yuba 3 miles NW of Rio Oso Post Office Comment
  CAS-BOT-BC103067  Salix bonplandiana Alice Eastwood 1913-7-3 3414 Yuba Bear River, [Mc Courtneys] McCourtneys Bridge, near Smartville 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-BC104031  Salix gooddingii C. Hart Merriam 1906-9-1 s.n. Yuba Mouth of the Yuba River, Marysville Comment
  CAS-BOT-BC104032  Salix gooddingii C. Hart Merriam 1906-9-1 s.n. Yuba Mouth of the Yuba River, Marysville Comment
  JEPS38405  Salix gooddingii W. L. Jepson Apr. 1891 15 s Yuba between Sacramento and Marysville (Harding's Landing, Sacramento R.); Sacramento R., Harding's Landing Comment
  JEPS120943  Salix laevigata Lowell Ahart 2013-4-23 18565 Yuba Along Costa Creek, about 100 yards E of where the paved road crosses Costa Creek, about 2.5 air miles SE of the Forbestown Store. Comment
  CHSC108846  Salix lasiolepis Lowell Ahart 2012-2-28 17757 Yuba On the north side of Fruitland Road, about 13 miles northeast of Marysville. 32 Comment
  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
  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
  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
  CHSC93878  Salvia sonomensis L. P. Janeway 2006-5-24 8613 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way 1.3 road km southeast of Robinson Mill Road; 1.3 air km southeast of Robinson Mills and Forbestown Road. 771 Comment
  UC1124850  Salvia sonomensis M. A. Elvin 1933-6-23 29 Yuba 1 mi W of Hansonville 426 Comment
  UCD112043  Salvia sonomensis Christopher Mallek 2008-5-5 IC3- 15 Yuba Indiana Creek. 617 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
  UC1128695  Sanguisorba minor subsp. muricata A. E. Wieslander and R. W. Lundh 1933-6-19 319 Yuba 2 mi s Kentucky House (L); Smartsville Quad., s of Kentucky House Comment
  UC861892  Sanguisorba minor subsp. muricata Lewis S. Rose 1940-5-28 40388 Yuba Browns Valley 60 Comment
  CDA20325  Sanicula bipinnata M. Stelmok 2005-3-8 PDR 1305468 Yuba Browns Valley. 6463 Tonopah Trail. 0 Comment
  JEPS252  Sanicula bipinnata Willis L. Jepson 1892-4-8 14180 Yuba Cabbage Patch Comment
  UC566792  Sanicula bipinnatifida Herbert L. Mason 1927-5-11 3730 Yuba vicinity of Dobbins 457 Comment
  UC566861  Sanicula bipinnatifida H. L. Mason 1927-5-11 3733 Yuba vicinity of Dobbins 457 Comment
  UCD111110  Sanicula bipinnatifida Christopher Mallek 2008-1 s. n. Yuba Daken Flat. 675 Comment
  UCR206957  Sanicula bipinnatifida George K. Helmkamp, E. A. Helmkamp 2009-5-28 14821 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 Comment
  CAS-BOT-BC223236  Sanicula bipinnatifida Alice Eastwood 1921-5-22 10543 Yuba Los Vergils Comment
  CHSC100722  Sanicula bipinnatifida var. flava L. P. Janeway 2008-5-11 9362 Yuba Northern High Sierra Nevada. In the northwestern head of Slapjack Creek; along Road 19N34, 1.3 road km southeast of Challenge-La Porte Road; about 1.2 km south-southeast of Woodleaf. 940 Comment
  CHSC67635  Sanicula graveolens James D. Jokerst 1985-4-29 2296 Yuba Deadwood Creek Hydro Survey: Surrounding the bottom of a logging road 0.5 mi N of Junction of N. Yuba River and Deadwood Creek. 1005 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
  UCD37845  Scandix pecten-veneris Beecher Crampton 1962-4-24 6242 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD128137  Scandix pecten-veneris Barbara Yungert 1974-4-25 82 Yuba SC-14 project area, Sierra Foothill Field Station. Comment
  CHSC70775  Schoenoplectus acutus var. occidentalis L. P. Janeway 1997-6-26 5174 Yuba 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
  CHSC97241  Schoenoplectus mucronatus Lowell Ahart 2007-6-22 14223 Yuba Bottom of a new ditch, near a new road pad, about 350 yards west of the power tower, about 13 miles (air) northeast of Marysville. 28 Comment
  UC1167548  Schoenoplectus mucronatus A. S. Leopold 1959-8-30 Yuba 10 mi s Marysville (Coburn Haskell Ranch); s of Marysville, Coburn Haskell Ranch 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
  SEINET13710634  Scirpus setaceus Lowell William Ahart, Lowell William Ahart 2003-1 10363 Yuba 5 Air Mi. N Od Dobbins (39 Deg 26'11.7"N, 121 Deg 12'07.3"W) 2746 Ft. 837 Comment
  UCD33109  Scirpus setaceus Beecher Crampton 1966-6-14 7752 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  CAS-BOT-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
  RSA21285  Scribneria bolanderi C. B. Wolf 1937-5-12 8629 Yuba 4 miles NE of Wheatland on road to Grass Valley 61 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
  UC1125706  Scrophularia californica M. A. Elvin 1933-7-6 39 Yuba 2 1/2 mi w Bridgeport; Smartsville Quadrangle Comment
  CHSC107991  Scutellaria californica Matt Simenc; M. Williams 2011-7-8 23 Yuba Northern Sierra Nevada. Growing throughout rocky dry serpentine drainages and outcrops. 846 Comment
  UC884068  Scutellaria californica Lewis S. Rose 1940-5-28 40387 Yuba Browns Valley 60 Comment
  HSC99328  Scutellaria californica C. B. Wolf 1927-11-5 1441 Yuba Road to Brown's Valley, 8 mi. from Marysville Comment
  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
  UCD125717  Scutellaria californica Barbara Yungert 1974-5-23 176 Yuba along F 1-11 fence line, near Road 3, west of Forbes Hill, Sierra Foothill Field Station. Comment
  SJSU5174  Sedella pumila J. B. Willis Jr. 1969-4-27 76 Yuba by State Rte 20 near Timbucktoo & Smartville Rds, 19 mi E of Marysville Comment
  CDA42472  Selaginella hansenii L. Ahart 2005-2-28 11565 Yuba West of a poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. Comment
  JEPS120958  Selaginella hansenii Lowell Ahart 2013-9-11 19027 Yuba On N side of Dry Creek, just above the high water line of Collins Lake, about 300 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  CHSC87338  Senecio aronicoides Lowell Ahart 2004-4-27 10766 Yuba About 20 yards west of a drainage, about 40 yards south of the road, about 1/2 mile (air) southeast of Woodleaf. 931 Comment
  CHSC108327  Senecio vulgaris Lowell Ahart 2011-6-7 17383 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS118293  Senecio vulgaris Lowell Ahart 2011-6-7 17383 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CAS-BOT-BC364538  Senecio vulgaris Lowell Ahart 1979-6-25 s.n. Yuba About one mile south of Challenge 700 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
  UCD135893  Sericocarpus oregonensis subsp. californicus G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12831 Yuba Northern Sierra Nevada Mountains: along Hwy CA-49, 0.5 mile south of Camptonville. 817 Comment
  CAS-BOT-BC364725  Sericocarpus oregonensis subsp. californicus Lowell Ahart 1976-10-1 s.n. Yuba Bullards Bar Dam Comment
  CAS-BOT-BC243560  Setaria parviflora Roxana S. Ferris 1927-11-5 6940 Yuba 7 miles from Brown Valley on Marysville Road 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
  CHSC69439  Setaria pumila Lowell Ahart 1997-8-13 7862 Yuba On the south side of Scott Forbes Road, 1/4 mile east of the intersection of Scott Forbes Road and Peoria Road, just east of Gray Drive, about 2 1/4 miles (air) east of Browns Valley. 91 Comment
  JEPS94367  Setaria pumila Lowell Ahart 1997-8-13 7862 Yuba about 2 1/4 air mi e of Browns Valley (on s side of Scott Forbes Road, 1/4 mi e of intersection of Scott Forbes Road and Peoria Road, just e of Gray Drive); Scott Forbes Road 91 Comment
  RSA726852  Setaria pumila L. Ahart 2007-6-30 14232 Yuba About 13 miles (air) northeast of Marysville. 29 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
  CHSC81082  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
  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
  JEPS99001  Setaria viridis Lowell Ahart 2001-8-14 9109 Yuba On the north side of Marysville Road, about 50 yards east of the east end of Bullards Bar Dam. 609 Comment
  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
  CHSC108187  Sherardia arvensis Lowell Ahart 2011-6-7 17413 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS118303  Sherardia arvensis Lowell Ahart 2011-6-7 17413 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  RSA726569  Sherardia arvensis L. Ahart 2007-5-12 13814 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  UCD122001  Sherardia arvensis Kathleen Keliher 1975-4-13 62 Yuba Near Lower Cook Road, K 1-11 project area, Sierra Foothill Field Station. 243 Comment
  UCD122009  Sherardia arvensis Barbara Yungert 1974-5-1 104 Yuba Near road and SC-12 fence, SC-14 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC213108  Sidalcea John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54082 Yuba About 2 miles northeast of dobbins on Oregon Hill Road, Sierra Nevada. 701 Comment
  CDA14565  Sidalcea asprella G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3042 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  CHSC100996  Sidalcea asprella L. P. Janeway 2006-5-24 8617 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way 1.6 road km north of La Porte Road and Brownsville. 680 Comment
  CHSC101000  Sidalcea asprella L. P. Janeway 2006-5-24 8609 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way 1.0 road km southeast of Robinson Mill Road; 1.2 air km southeast of Robinson Mills and Forbestown Road. 768 Comment
  CAS-BOT-BC26194  Sidalcea gigantea G. L. Clifton 1996-8-17 35038 Yuba At Travis Saddle along La Porte Road 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
  JEPS111465  Sidalcea gigantea G. L. Clifton 1996-8-17 35038 Yuba At Travis Saddle along La Porte Road Comment
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Jun 20 2014
  JEPS113914  Sidalcea gigantea Dean W. Taylor 2001-8-2 17880 Yuba meadow along Forest Road 35 about 2 road miles southwest from Union Hill, Strawberry Valley 71/2 USGS quadrangle 1264 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
  UCD116750  Sidalcea hartwegii Barbara Yungert 1974-4-25 87 Yuba east of four wheel drive road, lower SC-14 project area, Sierra Foothill Field Station. Comment
  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
  RSA726961  Sidalcea hirsuta L. Ahart 2007-5-14 13851 Yuba About 1/2 mile north of Fruitland Road, about 13.5 miles (air) northeast of Marysville. 29 Comment
  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
  UC852802  Silene californica Lewis S. Rose 1940-5-28 40381 Yuba Browns Valley 60 Comment
  CAS-BOT-BC384438  Silene coronaria Lowell Ahart 1980-6-19 2393 Yuba Along La Porte Road, near Rackerby 320 Comment
  JEPS113530  Silene gallica Lowell Ahart 2007-5-14 13881 Yuba Center of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  JEPS118057  Silene gallica Lowell Ahart 2011-6-7 17389 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  SD236262  Silene gallica David Charlton 2005-5-16 8024 Yuba Sacramento Valley: Yuba Gold Field; just S of Yuba River; ca. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area ca 2 mi by 1 mi (Browns Valley 7.5'Q). 25 Comment
  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
  UCD135842  Silybum marianum Kathleen Keliher 1975-5-31 126 Yuba upper H-2 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC74927  Sinapis arvensis Lowell Ahart 1974-5-1 s.n. Yuba About 4 miles west of Loma Rica. 300 Comment
  UC1126806  Sisymbrium officinale M. A. Elvin 1933-6-7 22 Yuba 3 mi se of O'Brien's Ranch 60 Comment
  UCD138852  Sisyrinchium bellum Barbara Yungert 1974-4-16 47 Yuba north of Road 4, SC-14 project area, Sierra Foothill Field Station. Comment
  CDA5903  Solanum carolinense Margaret Bellue Aug 1939 Yuba Marysville. 0 Comment
  UCD126858  Solanum carolinense Ken Taggard 1971-10-1 s.n. Yuba Sierra Foothill Range Field Station. Comment
  CHSC32091  Solanum elaeagnifolium L. Ahart 1974-8-1 571 Yuba In barnyard, Glenn Clark farm, ca. 1 mi e of Honcut. 36 Comment
  UCD126986  Solanum parishii W. R. Powell 1968-4-25 1479 Yuba 0.5 mile southwest of Virginia Ranch Reservoir, 5 miles southeast of Bangor. 403 Comment
  CHSC97668  Solanum physalifolium var. nitidibaccatum Lowell Ahart 2007-5-14 13848 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS113635  Solanum sarrachoides Lowell Ahart 2007-5-14 13848 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  SEINET10474351  Solidago californica Lowell Ahart, Peter Ahart 1983-8-10 Ahart 4275 Yuba Along Peterson Rd, ca. 5 mi e of Challenge. Yellow Pine Forest; 1000 m. 1000 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-BC365807  Soliva sessilis Peter H. Raven 1954-4-17 6624 Yuba Marysville Comment
  CAS-BOT-BC365831  Soliva sessilis Gordon H. True; John Thomas Howell 1969-4-9 4781 Yuba Timbuctoo, just west of Smartville 121 Comment
  CAS-BOT-BC374416  Sonchus asper Lowell Ahart 1979-6-25 s.n. Yuba One mile south of Challenge 700 Comment
  CHSC107169  Sonchus asper subsp. asper L. P. Janeway 2011-7-5 10491 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants occasional, especially in disturbed edges of the meadow. 750 Comment
  UCD92639  Sorghum halepense A. A. Beetle 1941-6-26 2735 Yuba Near Marysville. Comment
  UCR201936  Sorghum halepense George K. Helmkamp, E. A. Helmkamp 2008-10-6 14206 Yuba Sacramento Valley, junction of CA-65 and Ostrom No. 3 Road, southeast of Olivehurst 24 Comment
  JEPS118315  Spergula arvensis subsp. arvensis Lowell Ahart 2011-6-7 17390 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  SD240961  Spergularia macrotheca var. leucantha George K. Helmkamp, E. A. Helmkamp 2011-5-6 17191 Yuba East edge of Sacramento Valley: Camp Far West Road, 0.9 mile west of the junction at Camp Far West Reservoir (Camp Far West 7.5'Q) 64 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
  CHSC106053  Spiranthes porrifolia Lowell Ahart 2010-7-27 16919 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
  CHSC84241  Spiranthes porrifolia Lowell Ahart 2003-7-6