Search Results — 2000 specimen records retrieved (1531 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)
 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  JEPS102714  Abutilon theophrasti Lowell Ahart 2001-11-2 9400 Yuba Camp Far West Reservoir, about 1/4 mile NE of the dam, about 9 miles (air) SE of Wheatland. 83 Comment
  UCR201764  Abutilon theophrasti George K. Helmkamp, E. A. Helmkamp 2008-10-6 14210 Yuba Sacramento Valley, Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  HSC2829  Acer negundo var. californicum T. F. Newman 1965-4-7 6510 Yuba Lembke ranch, 9 mi. N of Marysville, near bank of Feather River Comment
  CAS-BOT-BC30407  Achillea millefolium Lowell Ahart 1979-6-25 s.n. Yuba 2 miles east of Challenge 700 Comment
  UCD50644  Achnatherum lemmonii Beecher Crampton 1954-5-10 1847 Yuba Along Hwy. 49, north slope of the Middle Yuba River, 6 miles south of Camptonville, Yuba County. Comment
  CAS-BOT-BC216460  Achnatherum occidentale subsp. californicum Lowell Ahart 1979-6-25 s.n. Yuba 2 miles E of Challenge 700 Comment
  CHSC44595  Achnatherum occidentale subsp. californicum Lowell Ahart 1979-6-25 1947 Yuba About 2 miles east of Challenge. 640 Comment
  CHSC41175  Achnatherum stillmanii L. P. Janeway; Gary Benson 1984-8-6 Yuba Plumas National Forest. Between Strawberry Valley and Slate Creek. 1173 Comment
  JEPS125984  Achnatherum stillmanii D. W. Taylor 2001-7-31 17852 Yuba Rock Creek canyon on the Yuba County line, ca 2 air miles SW of Union Hill. Comment
  CHSC14006  Achyrachaena mollis J. A. Roberts 1973-4-12 13 Yuba 15 mi n of Hwy 20, 10 mi e of Marysville. 457 Comment
  UCD128415  Achyrachaena mollis E. J. Kinbacher 1953-4-28 9 Yuba State Highway 20, 8 miles northeast of Marysville. 24 Comment
  UCD104579  Acmispon R. Osborne 1987-9-24 s.n. Yuba H.H. Ovantero Ranch, Dist. 10. Comment
  UCD103961  Acmispon americanus var. americanus Barbara Yungert 1974-5-8 135 Yuba North of Yuba River, f-2 project area, Sierra Foothill Field Station. Comment
  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
  UCD104099  Acmispon brachycarpus Barbara Yungert 1974-4-4 4 Yuba Along four wheel drive road, north of Yuba River, Sierra Foothill Field Station. Comment
  SBBG3418  Acmispon grandiflorus var. grandiflorus H. and M. Dearing 1939-5-7 Yuba Brownsville 762 Comment
  CHSC112368  Acmispon grandiflorus var. macranthus L. P. Janeway 2014-4-24 11233 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  JEPS121744  Acmispon grandiflorus var. macranthus L. P. Janeway 2014-4-24 11233 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. Comment
  SEINET11261963  Adenocaulon bicolor Robert L. Johnson, Mikel R. Stevens 2015-7-13 3966 Yuba Sierra Nevadas. 2.9 rd mi E of junction with Challenge Cuttoff Rd on La Porte Rd, Sharon Valley. At junction of La Porte Rd and Milk Ranch Rd (dirt rd).; 0 973 Comment
  JEPS112956  Adiantum aleuticum Dean W. Taylor 2001-6-18 17787 Yuba canyon of Slate Creek, along Forest Road 35 about 0.5 miles SE of the bridge over Slate Creek 1036 Comment
  UC936188  Aegilops triuncialis S. Galen Smith 1951-6-12 Yuba State Highway 49 near Camptonville 914 Comment
  CAS-BOT-BC206889  Aesculus californica Alice Eastwood 1921-5-22 10542 Yuba Los Vergils Comment
  UCR194909  Aesculus californica George K. Helmkamp, E. A. Helmkamp 2007-5-26 12132 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville 802 Comment
  CAS-BOT-BC295538  Agnorhiza bolanderi Alice Eastwood 1930-4-12 s.n. Yuba Near top of Texas Hill Comment
  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
  CHSC44843  Agoseris grandiflora Lowell Ahart 1979-6-25 1944 Yuba About 1 air mile south of Challenge. 640 Comment
  CHSC84140  Agoseris grandiflora Lowell Ahart 2003-7-2 10344 Yuba On the east side of Fountain Hill Road, about 2 miles south of Oregon Hill Road, about 1 1/2 miles (air) north of Fountain House Hill, about 4 miles (air) northeast of Dobbins. 834 Comment
  JEPS100269  Agoseris retrorsa Dean W. Taylor 2001-5-9 17642 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  CHSC110467  Agrimonia gryposepala L. P. Janeway 2013-7-24 11189 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
  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
  JEPS113575  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
  SBBG121198  Agrimonia gryposepala L. Ahart 2007-8-7 14424 Yuba SE part of Hampshire Crk Meadow, ca. 50 yards E of the dirt rd, ca. 1 mi (air) E of Clipper Mills 1021 Comment
  CHSC97618  Agrostis avenacea Lowell Ahart 2007-5-14 13862 Yuba On dry bare red soil, on the bottom of a swale, about 250 yards west of the power tower, power tower is about 30 yards north of the Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS113693  Agrostis avenacea Lowell Ahart 2007-5-14 13862 Yuba On dry bare red soil, on the bottom of a swale, about 250 yards west of the power tower, power tower is about 30 yards north of the Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  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
  UCR168800  Agrostis avenacea David Charlton 2005-5-16 8028 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
  CHSC47597  Agrostis exarata Lowell Ahart 1980-8-12 2561 Yuba Across from 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
  RSA653942  Agrostis exarata Beecher Crampton 1966-6-14 7760 Yuba 1 mile east of Brownsville on La Porte road. 732 Comment
  UCD32902  Agrostis exarata Beecher Crampton 1965-6-17 7377 Yuba Yuba County, ca. 3/4 mile north Stanfield Hill, Willow Glen Creek. 396 Comment
  UCD32920  Agrostis exarata Beecher Crampton 1965-6-17 7379 Yuba Yuba County, 4 miles south of Brownsville, Willow Glen rd.. 670 Comment
  UCD52285  Agrostis exarata Beecher Crampton 1964-10-22 7220 Yuba 3 miles east of Brown's Valley, Dry Creek. Comment
  CAS-BOT-BC139343  Agrostis idahoensis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54088 Yuba Sierra Nevada. 3.6 miles northest of Strawberry Valley on La Porte - Quincy road. 1280 Comment
  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
  UCD53049  Agrostis microphylla Robert E. Preston 1995-5-10 867 Yuba N edge of Beale Air Force Base, 0.4 mi. e. of jct Smartsville Road and Doolittle Drive. 41 Comment
  CAS-BOT-BC138782  Agrostis scabra Lowell Ahart 1980-8-12 2575 Yuba Sierra Nevada. Along Slate Creek. 1250 Comment
  CHSC116336  Agrostis scabra Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-19 20679 Yuba Spillway area, at the west side and near the top of Lake Francis Dam, below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  CHSC84452  Agrostis stolonifera Lowell Ahart 2003-7-6 10366 Yuba Near a meadow, east of the power line, about 50 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  JEPS104246  Agrostis stolonifera Lowell Ahart 2003-7-6 10366 Yuba Near a meadow, e of the power line, ca 50 yd nw of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  UCD74335  Agrostis stolonifera G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12841 Yuba Northern Sierra Nevada Mountains: along Hwy. CA-49, 0.5 mile south of Camptonville. 817 Comment
  CHSC63205  Agrostis thurberiana Lowell Ahart 1994-6-27 7394 Yuba North of the dirt road that goes from La Porte Road to the Poverty Hill Mine (County Road), east of Schwartz Meadow, about 4 miles north-east of Strawberry Valley. 1219 Comment
  CHSC107312  Aira caryophyllea L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10372 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. 750 Comment
  CHSC97441  Aira caryophyllea Lowell Ahart 2007-5-12 13820 Yuba Dry red bare soil, along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  SEINET3817926 Image available Aira caryophyllea George K. Helmkamp, E. A. Helmkamp 2011-4-10 17166 Yuba Sacramento Valley, Along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland (Wheatland 7.5' Q. 44 Comment
  SEINET7067139  Aira caryophyllea A. G. Vestal 1947-4-30 s.n. Yuba About 5.1 miles west of Smartville on Route 20. Coordinate datum: NAD27. Comment
  UCD55725  Aira caryophyllea Beecher Crampton 1965-5-11 7317 A Yuba 2.5 miles southwest of Brown's Valley. Comment
  UCD55768  Aira caryophyllea Beecher Crampton 1962-4-24 6277 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. 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
  UCR231332  Aira caryophyllea George K. Helmkamp, E. A. Helmkamp 2011-5-6 17185 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.3 mile north of the junction with Hokan Lane, vicinity of Camp Far West Reservoir 105 Comment
  SEINET5335999  Aira caryophyllea C. Aarstad 1979-4-28 s.n. Yuba at junct. of Rt. 20 and N Fork of Browns Valley 183 Comment
  CAS-BOT-BC138414  Aira caryophyllea var. capillaris Beecher Crampton 1957-6-5 4153 Yuba Foothill flat. 1.3 mile east Oregon House Store. Comment
  CAS-BOT-BC138349  Aira caryophyllea var. caryophyllea Gordon H. True 1963-4-17 1177 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Highway. 30 Comment
  UC1153945  Aira elegantissima Beecher Crampton 1957-6-5 4153 Yuba 1.3 mi e Oregon House Store Comment
  CHSC76294  Alisma lanceolatum Lowell Ahart 1999-9-17 8236 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
  SEINET3449084  Alisma lanceolatum Unknown 2003-7-17 10415 Yuba Smartville, Smartville, about 6 air miles south, west side of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road 120 Comment
  CAS-BOT-BC445377  Alisma plantago-aquatica W. V. Middlekauff 1955-7-4 s.n. Yuba 3 miles n.w. of Rio Oso Post Office Comment
  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
  CHSC84322  Allium amplectens Lowell Ahart 2003-7-17 10418 Yuba On both sides of Marysville Road, about 1/2 miile west of Oregon House. 466 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
  UC410438  Allium amplectens Alice Eastwood 1930-4-13 17934 Yuba near Marysville Comment
  UCR266162  Allium amplectens L. K. Mann 1957-4-19 s.n. Yuba No. Sierra Nevada Foothills, between Browns Valley and Dobbins, 0.2 mi west of Oregon House Post Office 466 Comment
  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
  SEINET7072985  Allium peninsulare A. G. Vestal 1963-5-30 s.n. Yuba Yuba River just past the bridge on the road to Timbuctoo. Coordinate datum WGS84/NAD83. (39? deg. 13' 10" North Latitude, -121? deg. 20' 3" West Longitude. UTM Zone 10, 643799mE, 4342242mN. Coordinate datum: NAD27). Comment
  CAS-BOT-BC132067  Allium peninsulare var. peninsulare Gordon H. True 1965-6-9 1988 Yuba Rock Creek just east of old McCourtney Road Bridge, Nevada Co., 14 miles east of Wheatland 182 Comment
  SBBG867  Allium sanbornii H. and M. Dearing 1939-5-6 3289 Yuba N of Challenge Comment
  CHSC108164  Allium sanbornii var. sanbornii L. P. Janeway 2011-8-15 10650 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 1.8 air km south-southwest of Oregon Peak, 0.5 km north of Marysville Road. Southwest edge of meadow area, where seasonal drainage occurs and in sheetlfow parts of the meadow. 762 Comment
  CHSC69157  Allium sanbornii var. sanbornii Lowell Ahart 1997-8-7 7835 A Yuba Northwest of the bridge across Indian Creek, about 3 miles (air) east of Challenge. 762 Comment
  CHSC43301  Alnus rhombifolia Lowell Ahart 1976-1-19 997 Yuba Along the edge of South Honcut Creek, near bridge, near Ramirez Road. 33 Comment
  UC1135121  Alnus rhombifolia M. A. Elvin 1933-7-14 51 Yuba Greenville Smartsville Quadrangle Comment
  CHSC69409  Amaranthus albus Lowell Ahart 1997-8-13 7869 Yuba South side of Scott Forbes Road, 1/4 mile east of the intersection of Scott Forbes Road and Peoria Road, just east of Gray Drive, about 2 1/4 air miles east of Browns Valley. 91 Comment
  CHSC81745  Amaranthus californicus Lowell Ahart 2001-11-2 9396 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 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
  RSA726415  Amaranthus hybridus L. Ahart 2007-5-14 13841 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  HSC4372  Amaranthus hybridus T. F. Newman 1965-10-9 6550 Yuba Carnes Ranch, 10 mi. N of Marysville Comment
  JEPS103445  Ambrosia psilostachya Lowell Ahart 2002-10-10 9976 Yuba On the W side of the dirt road, E of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, ca 2 miles (air) N of Bridgeport, ca 18 miles N of Highway 20. 166 Comment
  JEPS115013  Ambrosia psilostachya Lowell Ahart 2007-11-8 14586 Yuba On the south edge of a small island, on the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan 91 Comment
  RSA88085  Ambrosia psilostachya J. T. Howell 1951-8-21 28288 Yuba Near Camptonville 762 Comment
  UC1127768  Amelanchier utahensis G. Burks 1933-9-26 40 Yuba 1 mi s Camptonville; Tahoe National Forest, Smartsville Quad. 822 Comment
  CHSC76282  Ammannia coccinea Lowell Ahart 1999-9-17 8244 Yuba On the margins of a rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice rice dryer, about 5miles (air) northeast of Marysville. 24 Comment
  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
  CHSC76283  Ammannia robusta Lowell Ahart 1999-9-17 8245 Yuba On the margins of a rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  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
  UCD37868  Amsinckia Beecher Crampton 1962-4-24 6284 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  SEINET12479904  Amsinckia intermedia A. Tiehm 1975-1 648 Yuba U.C. Sierra Foothill Field station. 274 Comment
  UC1178255  Amsinckia intermedia Francia Chisaki with R. Bacigalupi and G. T. Robbins 1956-4-19 685 Yuba near Honcut Creek (above Stanfield Hill) Comment
  UCR257539  Amsinckia intermedia George K. Helmkamp 2014-4-17 22757 Yuba Sierra Nevada Foothills, Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville 264 Comment
  SEINET11792840  Amsinckia intermedia C. Aarstad 1979-4-28 s.n. Yuba At junction of Rt. 20 and N for of Yuba in Browns Valley 183 Comment
  UCD119711  Amsinckia intermedia Barbara Yungert 1974-4-14 33 Yuba Meathook project area, Sierra Foothill Field Station. Comment
  CHSC96463  Amsinckia menziesii Lowell Ahart 2007-4-17 13692 Yuba On the north side of the poor dirt fireguard, about 50 yards northwest of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  CHSC97225  Anagallis arvensis Lowell Ahart 2007-6-22 14221 Yuba Near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  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
  CDA39674  Anagallis minima J. T. Howell & Gordon H. True 1967-6-13 3559 Yuba Camp Far West Reservoir on Bear River, east of Wheatland. Comment
  HSC8924  Andropogon virginicus T. F. Newman 1964-2-22 9 Yuba 10 miles N of Marysville on Alt. 40, Rameriz Rd. Comment
  RSA88333  Andropogon virginicus G. H. True 1951-6-6 s.n. Yuba meadows near Parks Bar Comment
  UCD56085  Andropogon virginicus Beecher Crampton 1957-6-5 4113 Yuba Along State Hwy. 20, 7.5 miles east of Marysville. Comment
  UCD56093  Andropogon virginicus R. M. Love 1952-10-31 s.n. Yuba 13 miles east of Marysville. Comment
  UCD56096  Andropogon virginicus Gordon H. True 1951-1-6 s.n. Yuba near Parks Bar. Comment
  CAS-BOT-BC137783  Andropogon virginicus var. virginicus Roxana S. Ferris 1927-11-5 6941 Yuba 7 miles from Brown Valley on Marysville Road. Comment
  CDA42983  Andropogon virginicus var. virginicus L. Ahart 2013-11-3 19307 Yuba On north side of Dry Creek, below the high water line of Collins Lake, about 300 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. Comment
  CHSC113198  Andropogon virginicus var. virginicus Lowell Ahart 2013-11-30 19307 Yuba On north side of Dry Creek, below the high water line of Collins Lake, about 300 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 354 Comment
  CHSC117754  Anemone oregana var. oregana L. P. Janeway; Chelsea Kieffer, Emily Doe, Nicholas Doornbos 2016-5-4 11942 Yuba Northern High Sierra Nevada. Plumas National Forest; along La Porte Road 3.5 road-km northeast of Strawberry Guard Station. 1259 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
  CHSC97777  Anisocarpus madioides Lowell Ahart 2007-11-1 14535 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
  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
  HSC100756  Anthemis cotula Lowell Ahart 2011-6-7 17373 Yuba 150 yd. W of S end of Parks Bar Bridge (Hwy. 20), 15 (air) mi. NE of Marysville. 66 Comment
  RSA795537  Anthemis cotula L. Ahart 2011-6-7 17373 Yuba Bottom of a depression at the base of cliffs, to the north is a huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 air miles northeast of Marysville. 66 Comment
  UCD56269  Anthoxanthum odoratum Beecher Crampton 1966-6-14 7746 Yuba 1 mile east of Brownsville. 731 Comment
  CHSC108220  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
  RSA430680  Antirrhinum vexillocalyculatum subsp. intermedium David M. Thompson 1983-9-11 380 Yuba Near town of Log Cabin. Hwy. 49, 0.4 miles N of the middle of the bridge over Middle Yuba River (just N of Nevada Co. line). 480 Comment
  RSA96078  Antirrhinum vexillocalyculatum subsp. intermedium Percy C. Everett, E. K. Balls 1954-10-8 20246 Yuba Middle Fk. Yuba R., Hwy 49, 0.6 mi. n.e. of Yuba-Nevada Co. line, North San Juan to Camptonville. 503 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
  JEPS107450  Aphanes occidentalis Lowell Ahart 2005-3-11 11598 Yuba On W side of the poor dirt road, ca. 1/2 mi W of Marysville Rd, ca. 1/4 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/4 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 344 Comment
  CHSC106050  Apocynum androsaemifolium Lowell Ahart 2010-7-27 16922 Yuba Disturbed area of a log landing, about 100 yards north of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. 1219 Comment
  JEPS117429  Apocynum androsaemifolium Lowell Ahart 2010-7-27 16922 Yuba Disturbed area of a log landing, about 100 yards north of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam 1219 Comment
  RSA795330  Apocynum androsaemifolium L. Ahart 2010-7-27 16922 Yuba Disturbed area of a log landing, about 100 yards north of Scales Road, about 1/8 miles east of La Porte Quincy Road, about 3 air miles east of Sly Creek Reservoir Dam. 1220 Comment
  CAS-BOT-BC392099  Aquilegia formosa Lowell Ahart 1979-6-25 s.n. Yuba 2 miles east of Challenge 700 Comment
  UC1278004  Aquilegia formosa B. Crampton 1957-6-5 4160 Yuba 3 mi e Oregon House Store Comment
  CHSC69130  Aralia californica Lowell Ahart 1997-8-7 7819 Yuba Bottom and sides of a small stream, a branch of Little Oregon Creek, on the east side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  JEPS94620  Aralia californica Lowell Ahart 1997-8-7 7819 Yuba Peterson Ridge Rd. about 3 air mi se Challenge (on bottom and sides of small stream, a branch of Little Oregon Creek, on e side of dirt road) 762 Comment
  UCR189625  Arbutus menziesii George K. Helmkamp, E. A. Helmkamp 2007-8-29 12838 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 Comment
  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-BC46712  Arctostaphylos patula Alice Eastwood 1918-4-7 6797 Yuba Camptonville. Comment
  CAS-BOT-BC48244  Arctostaphylos viscida subsp. viscida L. S. Rose 1931-4-13 s.n. Yuba Woodleaf 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
  CHSC69160  Aristida oligantha Lowell Ahart 1997-8-7 7808 Yuba On the north side of New York Flat Road, about one mile northwest of La Porte Road, about 1 mile north of Brownsville. 731 Comment
  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
  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
  UCD56508  Aristida oligantha Beecher Crampton 1974-10-11 9095 Yuba 3 miles southwest of Brown's Valley, along Hwy. 20. Comment
  UCR25611  Aristida oligantha John C. Roos 1939-7-3 1517 Yuba Marysville Comment
  CDA22414  Aristolochia californica E. Vickery, P. E. Levingston 1965-3-12 Yuba Wheatland. 0 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
  CDA24669  Armoracia rusticana A. Worledge 1944-1 Yuba 0 Comment
  JEPS87727  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
  UCD129287  Artemisia douglasiana G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12830 Yuba Northern Sierra Nevada Mountains: Mountain House Road 0.6 mile west of the Sierra County line. Sleighville area beside Willow Creek. 1021 Comment
  SBBG1383  Asarum hartwegii H. and M. Dearing 1939-5-8 3294 Yuba near New York Crk, near Brownsville 762 Comment
  UCD121288  Asclepias cordifolia Barbara Yungert 1974-5-6 124 Yuba South side of road, SC-13 project area, Sierra Foothill Field Station. Comment
  UCD15416  Asclepias cordifolia Collector Unknown 1974-5-15 215 Yuba Yuba Co., 0.9 mi S of Camptonville on Hwy. 49; 762 Comment
  CHSC46024  Aspidotis densa Lowell Ahart 1974-7-29 686 Yuba About 50 yards south of Forbestown Road, near Costa Creek, about 2 1/2 miles east of Forbestown. 914 Comment
  CAS-BOT-BC66030  Athyrium filix-femina var. cyclosorum W. Fred Ayres Summer 1925 s.n. Yuba unspecified Comment
  UCD81495  Athysanus pusillus Christopher Michael Bronny 2009-4-1 7 Yuba Oat Hills' area of Sierra Nevada foothills. 194 Comment
  UCD114254  Athysanus pusillus Barbara Yungert 1974-4-16 44 Yuba Campbell Valley, Sierra Foothill Field Station. Comment
  UCR258212  Avena fatua George K. Helmkamp, Amy Barnes 2013-3-28 20262 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  CDA18795  Azolla filiculoides Deforest, Storm 2000-3-27 PDR 1199217 Yuba Loma Rica Rd., Marysville. 0 Comment
  UCD123527  Bacopa rotundifolia C. F. Dunshee 1925-1 s.n. Yuba Sacramento Valley. Comment
  CHSC43813  Barbarea orthoceras Lowell Ahart 1979-6-4 1924 Yuba Near a stream, along the county road, west of the bridges across Slate Creek. 640 Comment
  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
  UCD18434  Barbarea verna Joe DiTomaso 2001-4-12 s.n. Yuba on Peoria Rd. near junction with Sicard Flat Rd., on road to UC Sierra Foothill Research and Extension Center, shaded area along roadside of oak woodland. Comment
  CAS-BOT-BC16788  Barbarea verna Lowell Ahart 1977-4-18 s.n. Yuba Along Dry Creek, about 10 miles northeast of Marysville. 100 Comment
  CHSC87349  Berberis aquifolium var. dictyota Lowell Ahart 2004-4-27 10770 Yuba About 20 yards north of a drainage, about 50 yards east of the road, about 1/2 mile (air) southeast of Woodleaf. 931 Comment
  UCD95057  Berberis aquifolium var. dictyota Kathleen Keliher 1975-4-30 72 Yuba 1.5 miles E of Dobbins on Marysville Road, entrance to Middle brook Ranch. 609 Comment
  CAS-BOT-BC75960  Berberis pumila L. S. Rose 1931-4-14 s.n. Yuba Brownsville. Comment
  CHSC76265  Bidens cernua var. cernua Lowell Ahart 1999-9-17 8260 Yuba Sam Shintaffer Farm, about 1/8 mile southeast of the intersection of Ellis Avenue and Jack Slough Road, about 4 miles (air) northeast of Marysville. 21 Comment
  JEPS115047  Bidens frondosa Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14497 Yuba On the east side of a small pond, on the west side of the dirt road, Hampshire Creek Meadow, about 2 yards west of the dirt road, about 1 mile (air) east of Clipper Mills 1015 Comment
  CDA20322  Bothriochloa pertusa E. Storm, D. Flavell 2005-3-7 PDR 1295306 Yuba Browns Valley, UC Field Station. 0 Comment
  CHSC96911  Boykinia occidentalis Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-13 14297 Yuba On the south side of Hampshire Creek, below the cement dam on Hampshire Creek, east of a large wet meadow, about 100 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS28076  Boykinia occidentalis Rimo Bacigalupi and L. Heckard 1961-6-16 7831 Yuba on w slope of canyon North Fork of the Yuba River (just above and w of Bullards Bar Dam (second and upper crossing of this same brook)); canyon of N. Fork of the Yuba River 586 Comment
  POM161344  Boykinia occidentalis R. C. Bacigalupi 1927-7-2 1590 Yuba Highway to Downieville about 8 mi NE of Camptonville. Comment
Read comments Nov 9 2011
  UCD82292  Boykinia occidentalis Robin McMaster 1973-6-24 501 Yuba Oregon Creek Campground. Comment
  CAS-BOT-BC145441  Brachypodium distachyon J. T. Howell; Gordon H. True 1969-6-24 5092 Yuba Vineyard Creek ca. 4 miles south of Smartville on Beale AFB Road. 152 Comment
  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
  CHSC107562  Brachypodium distachyon Lowell Ahart 2011-6-7 17422 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UC1153944  Brachypodium distachyon Beecher Crampton 1957-6-5 4164 Yuba site of Timbuctoo, near old Wells Fargo Store Timbuctoo Comment
  UCD56999  Brachypodium distachyon Beecher Crampton 1971-6-18 8741 Yuba Sierra Foothill Range Field Station. Ca. 6.5 miles E of Browns Valley. Comment
  UCD57012  Brachypodium distachyon Beecher Crampton 1957-6-5 4121 Yuba 10 miles E of Marysville. Along State Hwy. 20. Comment
  UCR168805  Brachypodium distachyon David Charlton 2005-5-16 8033 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  CHSC46911  Brickellia greenei Lowell Ahart 1980-8-12 2534 Yuba 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-BC127874  Brickellia greenei Lowell Ahart 1980-8-12 2534 Yuba On a gravel bar along Slate Creek 1250 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
  UCD57363  Briza maxima Beecher Crampton 1969-5-12 8445 Yuba 2 miles west of Smartsville. State Hwy. 20. Comment
  UCR232224  Briza maxima George K. Helmkamp, E. A. Helmkamp 2011-5-6 17210 Yuba East edge of Sacramento Valley, junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg. ) of Wheatland 56 Comment
  CAS-BOT-BC145502  Briza minor Gordon H. True 1963-4-17 1178 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Highway. 30 Comment
  CHSC107171  Briza minor L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10378 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants at small watery drainage through shaded edge of the meadow. 750 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
  SEINET3440065 Image available Briza minor George K. Helmkamp, E. A. Helmkamp 2011-5-6 17187 Yuba East edge of Sacramento Valley: Camp Far West Road, 0.3 mi N of the junction with Hokan lane, vicinity of Camp Far West Reservoir 105 Comment
  SEINET7067145  Briza minor A. G. Vestal 1947-4-30 s.n. Yuba About 5.1 miles west of Smartville. Coordinate datum: NAD27. UTM Zone 10, 641421mE, 4340515mN. Comment
  UCD57408  Briza minor Beecher Crampton 1962-4-24 6300 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  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
  SEINET5718966 Image available Briza minor Meredith Sinclair 1974-1 36 Yuba University of California Sierra Foothill Range Field Station.; UC Foothill Field Station 457 Comment
  SEINET7042651  Briza minor A. G. Vestal 1963-5-30 s.n. Yuba Weedy depression near Dry Creek and north oh Sicard Flat. Smartville quadrangle UTM Zone 10, 642203mE, 4345148mN. Comment
  UCD149961  Brodiaea californica William Anderson 1965-5-16 s.n. Yuba Loma Rica. Comment
  UCR231316  Brodiaea californica var. californica George K. Helmkamp, E. A. Helmkamp 2011-5-6 17196 Yuba East edge of Sacramento Valley, Camp Far West Road, 2.3 miles northwest of the junction at Camp Far West Reservoir, 5.3 miles NE (53 deg. ) of Wheatland 55 Comment
  UCD77172  Brodiaea coronaria Robert E. Preston 2004-6-12 2256 Yuba 1.6 mi SW of Camptonville, along Marysville Rd, 0.2 mi W of its jct with Hwy 49. 762 Comment
  UCR169011  Brodiaea elegans David Charlton 2005-5-16 8003 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  SEINET7042657  Brodiaea elegans A. G. Vestal 1963-5-30 s.n. Yuba Sicard Flat Road at Route 20. Smartville quadrangle UTM Zone 10, 642569mE, 4343212mN. Comment
  UCD77171  Brodiaea elegans subsp. elegans Robert E. Preston 2004-6-12 2257 Yuba 1.6 mi SW of Camptonville, along Marysville Rd, 0.2 mi W of its jct with Hwy 49 762 Comment
  UCD139169  Brodiaea elegans subsp. elegans Barbara Yungert 1974-5-13 146 Yuba east side of road between the old headquarters and the river, Sierra Foothill Field Station. Comment
  CHSC107158  Brodiaea minor L. P. Janeway 2011-7-5 10489 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants abundant in moderately dry grassy parts of the meadow. 750 Comment
  CHSC115906  Brodiaea minor L. P. Janeway 2015-6-29 11784 Yuba Northern High Sierra Nevada. Plumas National Forest; Weiss Hill Meadow, a large meadow 600 air-km east-southeast of junction of Weiss Hill Road and Forbestown Road; at the head of a minor northwestern tributary to New York Creek. 853 Comment
  JEPS28072  Brodiaea minor Rimo Bacigalupi, and L. Heckard 1961-6-16 7828 Yuba 0.2 mi. w. of Rte. 49 on rd. to Bullard Bar Dam and Dobbins (Tahoe Nat'l Forest); Tahoe Nat'l Forest 762 Comment
  UCD77170  Brodiaea minor Robert E. Preston 2004-6-12 2258 Yuba 0.9 mi E of Dobbins, along Marysville Rd 644 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
  RSA151938  Brodiaea minor Rimo C. Bacigalupi, L. R. Heckard, Ruth D. Sanderson, G. Bacigalupi 1952-6-20 3759 Yuba Along road from Brownsville to Oregon House, just N of Washington Mill and 1.5 miles due S of Brownsville. 610 Comment
  UCD77190  Brodiaea nana Robert E. Preston 2004-4-25 2227 Yuba Ca. 6.5 mi NE of Wheatland, along Camp Far West Rd. 99 Comment
  UCD139151  Brodiaea nana Louis K. Mann 1957-4-21 s.n. Yuba beside State Highway 20, around 3 miles northeast of Marysville. Comment
  CHSC112957  Brodiaea sierrae L. P. Janeway 2014-6-26 11422 Yuba Northern High Sierra Nevada. Plumas National Forest; small ephemeral meadow on a flattish bench at head of ephemeral northeastern tributary to Little Oregon Creek; 1.9 air km south-southeast of Pike County Peak; 0.24 km northeast of Oregon Hill Road, 0.15 km south of Peterson Ridge Road. 852 Comment
  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
  CHSC115905  Brodiaea sierrae L. P. Janeway 2015-6-29 11785 Yuba Northern High Sierra Nevada. Plumas National Forest; Weiss Hill Meadow, a large meadow 600 air-km east-southeast of junction of Weiss Hill Road and Forbestown Road; at the head of a minor northwestern tributary to New York Creek. 853 Comment
  CHSC71464  Brodiaea sierrae Lowell Ahart 1998-7-19 8050 Yuba On dry rocky serpentine soil, on the north side of the dirt road, about 3/4 mile southeast of Woodleaf. 960 Comment
Read comments Jan 29 2013
  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
  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
Read comments Jul 17 2018
  SEINET4345216  Bromus carinatus A. Tiehm 1975-1 654 Yuba U.C. Sierra Foothill Field Station 396 Comment
  UCD58309  Bromus carinatus Beecher Crampton 1962-4-24 6298 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  CHSC37192  Bromus carinatus var. marginatus L. Ahart 1982-7-4 3661 Yuba Ca. 1/2 mi e of Brownsville, along LaPorte Rd. 700 Comment
  CAS-BOT-BC148846  Bromus carinatus var. marginatus Lowell Ahart 1982-7-4 3661 Yuba Sierra Nevada. About 0.5 mile east of Brownsville, along La Porte Road. 700 Comment
  CDA14560  Bromus ciliatus G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3037 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  JEPS95325  Bromus commutatus Lowell Ahart 1994-6-5 7303 Yuba 3 air miles E of Forbestown (S side of Costa Creek, E side of Forbestown Road) 853 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
  UCR257161  Bromus diandrus George K. Helmkamp 2014-4-17 22770 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
  SEINET4391031  Bromus diandrus D. E. Selleck 1979-4-28 s.n. Yuba Sierra Fielid Station-UC Davis. Comment
  CHSC107156  Bromus hordeaceus L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10374 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants scattered throughout the meadow. 750 Comment
  CHSC97463  Bromus hordeaceus Lowell Ahart 2007-5-12 13823 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  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
  UCD58825  Bromus hordeaceus Beecher Crampton 1962-4-24 6244 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. 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
  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
  UCD58933  Bromus laevipes Beecher Crampton 1957-6-5 4162 Yuba 3 miles east of Oregon House Store. Comment
  CAS-BOT-BC162368  Bromus madritensis Lowell Ahart 1981-6-13 2850 Yuba Sierra Nevada. On west side of McGinn Hill, east of Loma Rica. 300 Comment
  UCD58999  Bromus madritensis Beecher Crampton 1962-4-24 6270 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  CHSC113665  Bromus madritensis subsp. madritensis L. P. Janeway 2014-5-12 11245 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  CAS-BOT-BC162207  Bromus orcuttianus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54081 Yuba Sierra Nevada. About 2 miles northeast of Dobbins on Oregon Hill Road. 701 Comment
  JEPS100266  Bromus orcuttianus Dean W. Taylor 2001-5-9 17639 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  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
  UCD59699  Bromus sterilis Beecher Crampton 1962-4-24 6268 Yuba 5 miles east of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCD59722  Bromus sterilis Beecher Crampton 1966-6-14 7744 Yuba 1 mile east of Brownsville. 731 Comment
  UCR152062  Bromus sterilis Beecher Crampton 1954-5-10 1846 Yuba Central Sierra Nevada foothills, 6 miles south of Camptonville, along Hwy. 49 457 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
  CHSC107560  Calandrinia ciliata Lowell Ahart 2011-6-7 17409 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS107414  Calandrinia ciliata Lowell Ahart 2005-3-11 11620 Yuba In center of the poor dirt road, 100 yd W of large rock outcrop, ca. 1/2 mi W of Marysville Rd, ca. 1/2 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/2 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 386 Comment
  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
  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
  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
  JEPS32892  Callitriche longipedunculata A. A. Heller 1905-3-21 7561 Yuba At Marysville Comment
  CHSC32093  Calocedrus decurrens L. Ahart 1975-10-26 993 Yuba Home of Eugene Ahart, Fruitland Rd. 33 Comment
Read comments Aug 28 2018
  CHSC14019  Calochortus albus J. A. Roberts 1973-4-12 12 Yuba 20 mi n of Hwy 20, 10 mi e of Marysville. 457 Comment
  CHSC59363  Calochortus albus Thomas J. Van Wagner 1992-4-9 10 Yuba On State Highway 20, 0.65 km e of Yuba River bridge crossing. Ca. 32 road km ene of Marysville. 90 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
  UC672160  Calochortus albus Herbert L. Mason 1927-5-11 3722 Yuba near Dobbins (Sierra foothills); Sierra Comment
  UCD139465  Calochortus albus Barbara Yungert 1974-4-12 20 Yuba along north bank of four wheel drive road. North of Yuba River, Sierra Foothill Field Station. Comment
  UCD169987  Calochortus luteus M. Sciutto-Creps 1998-4-26 36 Yuba 7 miles northeast of the town of Wheatland, in the property adjacent to the southeast end of Beale Air Force Base, about half a mile NE of Best Slough, throughout the whole grassland area. 43 Comment
  CAS-BOT-BC483432  Calochortus luteus Lillian S. Mott 1965-4-21 LM 6549 Yuba Highway 20 to Marysville 518 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
  CHSC100720  Calochortus monophyllus L. P. Janeway 2008-5-11 9357 Yuba Northern High Sierra Nevada. About 0.8 km north-northeast of Challenge; Golden Gate Ravine side of the ridge between that and Jordan Creek; west side of Road 19N04 1.1 km north-northwest of Challenge-La Porte Road. At top of dry northwest-sloping swale. 1012 Comment
  CHSC112846  Calochortus monophyllus L. P. Janeway 2014-4-15 11225 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
  CHSC32088  Calochortus monophyllus L. Ahart 1973-5-6 212 Yuba Near Challenge. 762 Comment
  CHSC59576  Calochortus monophyllus H. E. Mac Lennan 1992-4-5 9 Yuba 20 air miles se of Oroville. 518 Comment
  UC640273  Calochortus monophyllus H. and M. Dearing 1939-5-5 3283 Yuba near Challange Comment
  UC672148  Calochortus monophyllus Herbert L. Mason 1927-5-11 3725 Yuba near Dobbins 457 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-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
  RSA166672  Calochortus monophyllus H. Dearing, M. Dearing 1939-5-6 3282 Yuba Near Challenge Comment
  SEINET12044652  Calochortus monophyllus L. S. Rose 1933-1 33196 Yuba Brownsville 640 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
  UCD112038  Calochortus uniflorus Christopher Mallek 2008-5-5 IC3- 13 Yuba Indiana Creek. 617 Comment
  CHSC28141  Calycadenia multiglandulosa J. D. Jokerst 1979-5-31 261 Yuba Marysville Rd. 3.9 mi NE of town of Oregon House (SW of Bullards Bar Resv.) across the street from Bobbs Ranger Station. Comment
  CHSC44853  Calycadenia multiglandulosa Lowell Ahart 1977-7-31 1503 Yuba Near the Brownsville airstrip, about 1 1/2 air miles southwest of Brownsville. 548 Comment
  CHSC78233  Calycadenia multiglandulosa Lowell Ahart 2000-7-13 8581 Yuba On the south side of Ridge Road, about 1/4 mile west of Our House, about 2 miles (air) east of Celestial Valley, about 2 1/2 miles (air) southeast of Camptonville. 975 Comment
  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
  JEPS94947  Calycadenia multiglandulosa Lowell Ahart 1997-8-7 7805 Yuba 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
  CAS-BOT-BC270730  Calycadenia multiglandulosa Lowell Ahart 1977-7-31 s.n. Yuba Near Brownsville 600 Comment
  CAS-BOT-BC270731  Calycadenia multiglandulosa David D. Keck 1932-7-1 1610 Yuba 2 miles E of Dobbins, Stanfield Hill 762 Comment
  CAS-BOT-BC270733  Calycadenia multiglandulosa David D. Keck 1932-7-1 1610 Yuba 2 miles E of Dobbins, Stanfield Hill 762 Comment
  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
  POM186826  Calycadenia multiglandulosa subsp. bicolor D. D. Keck 1932-7-1 1610 Yuba 2 miles E of Dobbins 762 Comment
  RSA255476  Calycadenia multiglandulosa subsp. bicolor Gerald D. Carr 1971-5-23 554 Yuba 0.6 miles north of Oregon House Post Office on road to Brownsville Comment
  RSA6263  Calycadenia multiglandulosa subsp. bicolor D. D. Keck 1932-7-1 1610 Yuba 2 miles E of Dobbins; to Stanfield Hill Comment
  SEINET11836280  Calycadenia oppositifolia L. S. Rose 1940-1 40399 Yuba Oregon House 457 Comment
  UC894252  Calycadenia pauciflora Lewis S. Rose 1940-5-28 40399 Yuba Oregon House 457 Comment
Read comments Feb 27 2007
  UC1119095  Calycadenia spicata M. A. Elvin 1933-6-6 27 Yuba 4 mi sw of Courtney Cross; Smartsville 60 Comment
  UC1143024  Calycadenia spicata M. A. Elvin 1933-7-1 38 Yuba 2 mi w of Lafferty Peak; Smartsville 152 Comment
  CHSC83020  Calycadenia truncata Lowell Ahart 2002-10-10 9977 Yuba On the east side of the dirt road, east of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20. 166 Comment
  CHSC117665  Calycanthus occidentalis Lowell Ahart 2016-8-30 21319 Yuba In ravine on the north side of a dirt road, about one mile east of Challenge. Comment
  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
  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
  CHSC116181  Camassia howellii Lowell Ahart 2015-6-16 20244 Yuba In a small meadow, near water ditch, about 100 yards south of the poor dirt road, about 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. 829 Comment
  CHSC110459  Camassia quamash subsp. breviflora L. P. Janeway 2013-7-2 11180 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, on of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. 815 Comment
  CHSC49647  Camassia quamash subsp. breviflora Vernon Oswald 1984-6-25 1310 Yuba E21 between Challenge and LaPorte, ca. 250 ft S of the Plumas Co. line. 1280 Comment
  JEPS124108  Camassia quamash subsp. breviflora Lowell Ahart, Susan Kephart, Jim Kephart 2015-6-4 20195 Yuba About 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. Comment
  SEINET10462863  Campanula prenanthoides Clifton 1971-7-4 CLIFTON 324 Yuba CHALLENGE DISTURBED AREA. T19N R7E SEC. 17 853 Comment
  CHSC3324  Capsella bursa-pastoris M. Gregg 1966-3-13 38 Yuba Northeast of Marysville on the Slaughter House Rd. 1/4 mile from the levee. Both sides of the road. 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-BC520406  Cardamine breweri Lowell Ahart 1978-5-31 1748 Yuba Edge of the South Fork of the Feather River, 0.5 mi above the Golden Trout Crossing, approx. 4 mi W of Sly Creek Reservoir, W of Strawberry Valley 750 Comment
  SEINET8350404  Cardamine hirsuta Lowell Ahart 2005-3-11 11600 Yuba 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
  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
  RSA715480  Cardamine oligosperma L. Ahart 2005-3-11 11600 Yuba West of a large rock outcrop, about 1/2 mile W of Marysville Road, about 1/2 mile N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile N of Loma Rica Road, about 5 miles (air) NE of Loma Rica. 386 Comment
  CHSC87347  Cardamine pachystigma var. pachystigma Lowell Ahart 2004-4-27 10767 Yuba About 20 yards north of a drainage, about 50 yards east of the road, about 1/2 mile (air) southeast of Woodleaf. 931 Comment
  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
  JEPS98356  Carduus pycnocephalus subsp. pycnocephalus Lowell Ahart 2000-5-25 8402 Yuba 6 air miles S of Smartville (a north branch of Dry Creek, 100 yds W of Smartville Road, about 2 mi N of intersection of Waldo Road and Smartville Road) 146 Comment
  UC1982296  Carex amplifolia Virginia Moran 2008-9-17 Yuba Collected from Celestial Pond located approximately tem miles (16Km) north of Nevada City in Yuba County. Water from the pond drains in Oregon Creek which drains into the Middle Yuba River. Comment
  CHSC106049  Carex angustata Lowell Ahart 2010-7-27 16917 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
  JEPS117652  Carex angustata Lowell Ahart 2010-7-27 16917 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
  SEINET13327107  Carex angustata L. Ahart 2010-7-27 16917 Yuba Notrh side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam 1219 Comment
  UCD80245  Carex angustata CNPS SN Foothill Team 2005-3-16 SNFN 0017 a Yuba 187 Comment
  UCR118909  Carex aquatilis Beecher Crampton 1962-4-24 6289 Yuba Central Sierra Nevada foothills, University of California Foothill Field Station, 5 miles east of Brown's Valley, 2.5 miles NNW of Smartville 366 Comment
  UCD140108  Carex aquatilis 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
  CHSC105844  Carex aurea Lowell Ahart 2010-7-27 16915 Yuba Meadow on the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. 1219 Comment
  JEPS95412  Carex aurea Lowell Ahart 1994-6-27 7381 Yuba 4 mi NE of Strawberry Valley (N of the dirt county road from La Porte Road to the Poverty Hill Mine, E of Schwartz Meadow) 1219 Comment
  CHSC112130  Carex barbarae L. P. Janeway; James Nixon, Eduardo Gonzales 2014-7-2 11431 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow opening just northeast of Little Oregon Creek and 0.2 km east of Oregon Hill Road; 7.3 air-km southeast of Challenge. 625 Comment
  CHSC97201  Carex cyrtostachya Lowell Ahart 2007-8-7 14419 Yuba Along a small stream, about 100 yards northwest of the dirt road, north part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills. 1021 Comment
  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
  CHSC78275  Carex echinata subsp. echinata Lowell Ahart 2000-6-23 8508 Yuba Bog in a small meadow, about 200 yards east of the meadow along La Porte Road, about 50 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  JEPS100493  Carex echinata subsp. echinata Lowell Ahart 2000-6-23 8508 Yuba Bog in a small meadow, about 200 yards east of the meadow along La Porte Road, about 50 yards north of Scales Road, about 3 miles northeast of Strawberry Valley 1219 Comment
  JEPS104627  Carex echinata subsp. echinata Lowell Ahart 2000-6-23 8508 Yuba Bog in a small meadow, about 200 yards east of the meadow along La Porte Road, about 50 yards north of Scales Road, about 3 miles NE of Strawberry Valley. 1219 Comment
  JEPS113711  Carex echinata subsp. echinata Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14299 Yuba On the south side of Hampshire Creek, on the southeast side of a large wet meadow, about 80 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills 1021 Comment
  SEINET10588483  Carex echinata subsp. echinata Lowell Ahart 2000-6-23 Ahart 8508 Yuba T20N, R8E, northwest 1/4 Section 15. About 200 yards east of the meadow along La Porte Road, about 50 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  JEPS104244  Carex feta Lowell Ahart 2003-7-6 10361 Yuba In a meadow, east of the power line, about 60 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  SEINET11125895 Image available Carex feta Unknown 2010-1 24978 Yuba W side of Challenge Cutoff, 2.5 air km NE of Brownsville, Northern Sierra Nevada Highlands (n SNH) Comment
  SEINET7485197 Image available Carex feta Peter F. Zika, Peter F. Zika 2010-1 24978 Yuba W side of Challenge cut-off, 2.5 air km NE of Brownsville, northern Sierra Nevada Highland (n SNH) Comment
  UCD33110  Carex feta Beecher Crampton 1966-6-14 7753 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  SEINET4291980 Image available Carex feta A. L. Hipp, Clifton, G 1999-1 ah 385 Yuba Marysville Road Comment
  CHSC63286  Carex fracta Lowell Ahart 1994-6-5 7307 Yuba Small open meadow in forest, on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  UC836272  Carex gracilior Lewis S. Rose 1940-5-28 40380 Yuba Browns Valley 60 Comment
  CAS-BOT-BC146662  Carex hirtissima Lewis S. Rose 1940-5-28 40386 Yuba Browns Valley 60 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
  JEPS87678  Carex hirtissima Lowell Ahart 1994-6-5 7304 Yuba ca. 3 (air) mi e Forbestown (s side of creek, e side of Forbestown Rd.); Costa Creek 853 Comment
  JEPS87733  Carex hirtissima Lowell Ahart 1994-6-27 7386 Yuba ca. 4 mi. n.e. Strawberry Valley (s. side of small stream, e. of logging rd., e. of Schwartz Meadow, on e. side of La Porte Rd.) 1219 Comment
  RSA769203  Carex hirtissima P. F. Zika 2010-6-22 24979 Yuba West side of Challenge Cut-off, 2.5 air km northeast of Brownsville, Northern Sierra Nevada Highlands 755 Comment
  SEINET13709580  Carex hirtissima Lowell William Ahart, Lowell William Ahart 2003-1 10359 Yuba 5 Mi. N of Dobbins Near Fountain Hill Road (39 Deg 26'11.7"N, 121 Deg 12'07.3"W) 2746 Ft. 837 Comment
  SEINET7485288 Image available Carex hirtissima Peter F. Zika 2010-1 24979 Yuba W side of Challenge Cut-off, 2.5 air km NE of Brownsville, northern Sierra Nevada Highlands 755 Comment
  JEPS113729  Carex laeviculmis Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14295 Yuba On the south side of Hampshire Creek, on the south side of a large wet meadow, about 80 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills 1021 Comment
  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
  CAS-BOT-BC32183  Carex multicaulis Lowell Ahart 1969-5-18 s.n. Yuba Slate Creek, 10 miles S of La Porte. 914 Comment
  JEPS113713  Carex stipata var. stipata Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14298 Yuba On the south side of Hampshire Creek, on the southeast side of a large wet meadow, about 80 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills 1021 Comment
  UCD33113  Carex stipata var. stipata Beecher Crampton 1966-6-14 7758 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  CAS-BOT-BC117350  Carex stipata var. stipata Beecher Crampton 1966-6-14 7758 Yuba 1 mi E of Brownsville, La Porte Road. Comment
  CAS-BOT-BC116763  Carex subfusca John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54093 Yuba 3.6 mi NE of Strawberry Valley on La Porte-Quincy road. 1280 Comment
  CAS-BOT-BC499134  Carex xerophila Peter F. Zika; L. P. Janeway 2012-5-16 25871 Yuba Just E of junction of Jiggs Road and Ponderosa Way, 3 air km W of Ruff Hill, Brownsville 715 Comment
  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
  CHSC102952  Carex xerophila L. P. Janeway 2006-5-24 8626 Yuba Northern Sierra Nevada Foothills. Along Forsythe Road 2.7 road km south of New York House Road; above Prince Albert Creek. 604 Comment
  CHSC102954  Carex xerophila L. P. Janeway 2006-5-24 8619 Yuba Northern High Sierra Nevada Foothils. East side of Ponderosa Way 1.3 km north of La Porte Road and Brownsville. 686 Comment
  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
  JEPS121793  Carex xerophila L. P. Janeway 2006-5-24 8626 Yuba Northern Sierra Nevada Foothills. Along Forsynthe Road 2.7 road km south of New York House Road; above Prince Albert Creek. Comment
  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
  SD257103  Carex xerophila P. F. Zika, L. P. Janeway 2012-5-16 25871 Yuba Just E of junction of Jiggs Road and Ponderosa Way, 3.0 air km W of Ruff Hill, Brownsville. 715 Comment
  UCD168843  Carex xerophila Peter. F. Zika; L. P. Janeway 2012-5-16 25871 Yuba Northern Sierra Nevada Foothill/Highlands boundary (n SNF/H). Just E of junction of Jiggs Road and Ponderosa Way, 3 air km W of Ruff Hill, Brownsville. 715 Comment
  UCD122152  Castilleja affinis Kathleen Keliher 1975-5-14 105 Yuba Near Road 5 and Cook Area, L 1-21 project area, Sierra Foothill Field Station. 243 Comment
  UCD23258  Castilleja applegatei W. R. Powell 1968-5-15 1498 Yuba 2 miles NE of Dobbins on Fountain House Road. 792 Comment
  RSA0117085  Castilleja applegatei subsp. pinetorum Lowell A. Ahart 2015-5-9 20147 Yuba On the west side of the road, on the steep road cut, Highway 49, about 1 mile northeast of the intersection of Marysville Road and Highway 49, about 2 miles southwest of Camptonville. 804 Comment
  SEINET7042622  Castilleja attenuata 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
  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
  CHSC115310  Castilleja pruinosa Lowell Ahart 2015-4-30 20135 Yuba On the east side of La Porte Road, about 2-1/4 miles air) southwest of Brownsville, about 2 miles (air) northeast of Rackedrby. 504 Comment
  SJSU14229  Castilleja pruinosa N. A. Hopkins 1989-4-28 1481 Yuba Ridge Rd to Allegheny c. 3 mi off Hwy 49 1219 Comment
  JEPS95413  Castilleja tenuis Lowell Ahart 1994-6-27 7377 Yuba 4 mi NE of Strawberry Valley (near S side of Schwartz Meadow, E side of La Porte Road) 1219 Comment
  UC1281467  Ceanothus H. E. McMinn 1946-5-11 5506 Yuba road from Dobbins to Camptonville; road from Dobbins to Camptonville Comment
  UCD110816  Ceanothus cuneatus Christopher Mallek 2008-1 s.n. Yuba Indiana Creek. 617 Comment
  UCD112086  Ceanothus cuneatus Barbara Yungert 1974-4-14 35 Yuba east of Road 5, K 1-11 project area, Sierra Foothill Field Station. Comment
  UCR169015  Ceanothus cuneatus David Charlton 2005-5-16 8006 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  CAS-BOT-BC50705  Ceanothus integerrimus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54085 Yuba Sierra Nevada - About 2 miles northeast of Dobbins on Oregon Hill Road 701 Comment
  CAS-BOT-BC50707  Ceanothus integerrimus Saichi Kawahara 1968-4-13 301 Yuba Park's Bar, Highway 20 at north bank Yuba River 91 Comment
  CAS-BOT-BC50709  Ceanothus integerrimus L. S. Smith 1939-4-19 2815 Yuba Near Camptonville 609 Comment
  SEINET12211866  Ceanothus integerrimus F. H. Utech 1990-6-5 90 -864 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  CDA14563  Ceanothus integerrimus var. macrothyrsus G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3040 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  CAS-BOT-BC50586  Ceanothus lemmonii Lloyd W. Swift 1932-5-11 68193 Yuba Near Bullards Bar Dam 609 Comment
  CAS-BOT-BC50588  Ceanothus lemmonii Peter H. Raven 1953-5-9 5473 Yuba 1 mile from Brownsville on road to Challenge Comment
  CHSC96569  Ceanothus lemmonii L. P. Janeway 2006-5-24 8629 Yuba Northern Sierra Nevada Foothills. Along Forsythe road 2.7 road km south of New York House Road; above Prince Albert Creek. 604 Comment
  RSA712847  Ceanothus lemmonii L. P. Janeway 2006-5-24 8610 Yuba Northern Sierra Nevada Foothills, along Ponderosa Way 1 road Km SE of Robinson Mill Road, 1.2 air km SE of Robbinson Mills and Forebestown road 768 Comment
  SBBG4337  Ceanothus lemmonii H. and M. Dearing 1939-5-6 3286 Yuba W of Challenge 609 Comment
  UCD112077  Ceanothus lemmonii Beecher Crampton 1966-6-14 7761 Yuba 1 mile west of Brownsville. Comment
  CAS-BOT-BC51994  Ceanothus prostratus Milo S. Baker 1941-6-19 9964 Yuba Roadside between Brownsville and La Porte 1371 Comment
  CHSC32103  Ceanothus prostratus L. Ahart 1975-5-4 749 Yuba Near Brownsville. 609 Comment
  UCD112656  Ceanothus prostratus Kathleen Keliher 1975-5-6 92 Yuba Along La Porte Road, 2 miles from Forbestown Road, Challenge. 914 Comment
  CAS-BOT-BC277077  Centaurea melitensis Lowell Ahart 1981-6-13 2852 Yuba South side of McGinn Hill, east of Loma Rica 300 Comment
  UCD130041  Centaurea melitensis Beecher Crampton 1971-6-18 8736 Yuba Sierra Foothill Range Field Station. Ca. 7 miles E of Browns Valley. 'Black Oak Pass' area. Comment
  JEPS46981  Centaurium muehlenbergii W. L. Jepson 1934-7-29 16757 Yuba Marysville 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
  RSA220016  Centaurium muehlenbergii G. H. True, J. T. Howell 1967-6-13 3571 Yuba Camp Far West Reservoir, Bear River east of Wheatland. 61 Comment
  CHSC96870  Centaurium tenuiflorum Lowell Ahart 2007-6-30 14228 Yuba Sides of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  JEPS120966  Centaurium tenuiflorum Lowell Ahart 2013-11-30 19308 Yuba on N side of Dry Creek, below the high water line of Collins Lake, about 300 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  JEPS124144  Centaurium tenuiflorum Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20637 Yuba Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CHSC113172  Centromadia fitchii Lowell Ahart 2013-11-30 19311 Yuba On north side of Dry Creek, below the high water line of Collins Lake, about 300 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 354 Comment
  CHSC97234  Centromadia fitchii Lowell Ahart 2007-6-22 14210 Yuba Along a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  UC1069524  Centromadia fitchii M. A. Elvin 1933-6-7 21 Yuba 3 mi se O'Brien's Ranch; Smartsville Quad. 60 Comment
  CAS-BOT-BC288822  Centromadia fitchii Mrs. H. C. Cantelow 1940-5-13 3060 Yuba E of Marysville on road to Grass Valley Comment
  CAS-BOT-BC288824  Centromadia fitchii Mrs. S. Earle Kelley 1920-10-31 s.n. Yuba [Los Verjeles?] Comment
  CHSC90338  Cerastium glomeratum Lowell Ahart 2005-3-11 11605 Yuba In the middle of the poor dirt road, west of a large rock outcrop, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 386 Comment
  JEPS113529  Cerastium glomeratum Lowell Ahart 2007-5-12 13786 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  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
  UCD14963  Cerastium glomeratum Susan J. Schmickle 1977-4-16 2 Yuba California, Yuba Co.; at the UC Sierra Field Station, northwest off of Road 4; Comment
  CAS-BOT-BC388245  Cerastium glomeratum Susan J. Schmickle 1977-4-16 2 Yuba At the UC Sierra Field Station, northwest off of Road 4 Comment
  CAS-BOT-BC400180  Ceratophyllum demersum W. V. Middlekauff 1955-7-4 s.n. Yuba 3 miles n.w. of Rio Oso Post Office Comment
  CAS-BOT-BC207378  Cercis occidentalis Saichi Kawahara 1969-4-13 304 Yuba Park's Bar, Highway 29 at north bank Yuba River 91 Comment
  UCD105667  Cercis occidentalis Barbara Yungert 1974-5-16 162 Yuba Along Dry Creek, below Porter fence line, P-2 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC136994  Cercocarpus betuloides var. betuloides Lowell Ahart 1977-4-18 s.n. Yuba Along Dry Creek about 10 miles northeast of Marysville 100 Comment
  CAS-BOT-BC140760  Chamaebatia foliolosa Brighton C. Cain 1925-8-16 38 Yuba Junction of roads from Marysville and Nevada City to Downieville Comment
  CAS-BOT-BC140761  Chamaebatia foliolosa Elmer I. Applegate 1934-5-2 8896 Yuba Near Indian Valley Comment
  SEINET3013990  Chamaesyce maculata L. Ahart 1997-8-7 7806 Yuba On the N side of New York Flat Rd., about 1 mi NW of La Porte Rd., about 1 mi N of Brownsville. 732 Comment
  JEPS98575  Chamaesyce ocellata subsp. ocellata Lowell Ahart 2000-6-11 8469 Yuba 6 mi (air) S of Smartville (W side of Smartville Road, 2 mi N of int. with Waldo Road) 152 Comment
  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
  JEPS115025  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2007-11-8 14580 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan 73 Comment
  JEPS98462  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2000-6-11 8467 Yuba 6 air miles S of Smartville (a north branch of Dry Creek, 100 yds W of Smartville Road, 2 mi N of int of Waldo Rd and Smartville Rd) 146 Comment
  RSA0037020  Chamaesyce serpillifolia subsp. serpillifolia Lowell A. Ahart 2013-11-30 19299 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  RSA727530  Chamaesyce serpillifolia subsp. serpillifolia L. 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. 74 Comment
  SEINET11263898  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2002-10-9 9966 Yuba Below the high water line of Sly Creek Reservoir, about 1/8 mile SW of the Day Camp.; 0 1073 Comment
  CAS-BOT-BC70099  Cheilanthes gracillima C. E. Dotey s.n. Yuba unspecified Comment
  JEPS35374  Cheilanthes gracillima G. E. Davenport 1877-1 Yuba Comment
Read comments Jun 28 2010
  SEINET11711581  Cheilanthes gracillima E. O. Pelton 1878-1 s.n. Yuba no further locality Comment
  JEPS115017  Chenopodium ambrosioides var. suffruticosum Lowell Ahart 2007-11-1 14548 Yuba On the north side of Loma Rica Road, east of the Fire Station, about 3/4 mile east of Loma Rica 146 Comment
  RSA795982  Chlorogalum angustifolium James R. Shevock, Robert Holland 1985-5-6 11125 Yuba Beale Air Force Base E of Marysville. Pools adjacent to runway. 40 Comment
  CHSC115914  Chlorogalum pomeridianum var. pomeridianum L. P. Janeway 2015-7-1 11797 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, one of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. 815 Comment
  CHSC115915  Chlorogalum pomeridianum var. pomeridianum L. P. Janeway 2015-7-1 11797 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, one of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. 815 Comment
  CDA18832  Chondrilla juncea E. Finley 1999-7-28 PDR 1013545 Yuba Oregon House 0 Comment
  JEPS102449  Chondrilla juncea Lowell Ahart 2001-8-14 9108 Yuba On the south side of Marysville Road, about 50 yards east of the east end of Bullards Bar Dam. 609 Comment
  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
  CHSC46130  Clarkia biloba subsp. brandegeeae Lowell Ahart 1981-6-13 2846 Yuba Along the new gravel road, north-east side of McGinn Hill, east of Loma Rica. 274 Comment
  UC1071949  Clarkia biloba subsp. brandegeeae H. and M. Lewis 1947-6-11 389 Yuba 0.7 mi w Oregon House Post Office (on the road to Stanfield Hill) Comment
  UC1299415  Clarkia biloba subsp. brandegeeae Freed W. Hoffman 1946-6-14 742 Yuba near North San Juan; North Fork Yuba River Comment
  CAS-BOT-BC172050  Clarkia gracilis subsp. gracilis H. Lewis; M. Lewis; M. Roberts 1951-5-19 820 Yuba 2.3 mi. east of Oregon House Comment
  LA206352  Clarkia gracilis subsp. gracilis H. Lewis; M. Lewis, M. R. Roberts 1951-5-19 820 Yuba 2.3 mi. E of Oregon House Comment
  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
  CAS-BOT-BC163270  Clarkia mildrediae subsp. lutescens Lowell Ahart 1980-7-25 2486 Yuba Near Slate Creek 1200 Comment
  CAS-BOT-BC163271  Clarkia mildrediae subsp. lutescens L. P. Janeway 1994-7-1 4674 Yuba West side of Slate Creek, 3 mi northeast of Strawberry Valley; along Road 10N35 0.1 mi south of the bridge across Slate Creek 1005 Comment
  CHSC89897  Clarkia mildrediae subsp. lutescens M. K. Hayden; Z. E. Diggory 2004-6-25 Yuba Northern High Sierra Nevada. Located at Slate Creek Diversion across from the intake structure. 1066 Comment
  CHSC89899  Clarkia mildrediae subsp. lutescens M. K. Hayden; Z. E. Diggory 2004-6-25 Yuba Northern High Sierra Nevada. Located at Slate Creek Diversion across from the intake structure. 1066 Comment
  CHSC108229  Clarkia purpurea subsp. quadrivulnera Lowell Ahart 2011-6-7 17405 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCR194898  Clarkia purpurea subsp. quadrivulnera George K. Helmkamp, E. A. Helmkamp 2007-5-26 12136 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-BC163417  Clarkia purpurea subsp. quadrivulnera Lillian S. Mott 1965-4-21 LM 6548 Yuba Hiway 20 to Marysville Comment
  CAS-BOT-BC163419  Clarkia purpurea subsp. quadrivulnera Alice Eastwood 1921-5-22 10518 Yuba Los Vergils Comment
  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
  UCD104954  Clarkia purpurea subsp. quadrivulnera Barbara Yungert 1974-5-1 100 Yuba Sc-13 project area, Sierra Foothill Field Station. Comment
  JEPS125921  Clarkia stellata D. W. Taylor 2001-6-19 17791 Yuba Ca 1 mile NW of Union Hill, along Forest Road 20N19 about400 m S of Forest Road 21 N17 Comment
  UC1730243  Clarkia stellata L. P. Janeway and Loren Gehrung, Karen Lee, Marcile Sigler, Cliff Sivil 1993-6-15 4384 Yuba 1.3 mi E of Woodleaf (1.2 mi SW of Clipper Mills, upperlmost drainage of Slapjack Creek) 1043 Comment
  CHSC59586  Claytonia parviflora subsp. parviflora H. E. Mac Lennan 1992-4-5 5 Yuba 20 air miles se of Oroville. 441 Comment
  UCD37881  Claytonia perfoliata Beecher Crampton 1962-4-24 6305 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CAS-BOT-BC443757  Claytonia rubra subsp. rubra Alice Eastwood 1918-4-7 6801 Yuba Camptonville Comment
  UCD95601  Clematis lasiantha H. A. Borthwick 1925-3-17 395 Yuba Marysville Buttes. Comment
  UCD95630  Clematis lasiantha Barbara Yungert 1974-5-1 106 Yuba South of county road, near fence line, H-9 project area, Sierra Foothill Field Station. Comment
  SEINET5337776  Clematis lasiantha C. Aarstad 1979-4-28 s.n. Yuba At jct. of Rt. 20 and north fork of Yuba in Browns Valley. 183 Comment
  UCD123625  Collinsia heterophylla Barbara Yungert 1974-5-9 101 Yuba northeast of Upper Schubert project area, Sierra Foothill Field Station. Comment
  UCD123665  Collinsia sparsiflora Barbara Yungert 1974-4-16 49 Yuba south of Road 4, SC-14 project area, Sierra Foothill Field Station. 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
  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
  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
  UCR201900  Convolvulus arvensis George K. Helmkamp, E. A. Helmkamp 2008-10-6 14200 Yuba Sacramento Valley, junction of CA-65 and Ostrom No. 3 Road, southeast of Olivehurst 24 Comment
  CDA7451  Conyza bonariensis L. Ahart 1999-9-17 8254 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
  JEPS115030  Conyza floribunda Lowell Ahart 2007-11-1 14545 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
  CHSC69156  Cordylanthus tenuis subsp. tenuis Lowell Ahart 1997-8-7 7813 Yuba Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 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
  UC566181  Cornus nuttallii M. A. Elvin 1933-7-14 52 Yuba Greenville Smartsville Quad., Greenville 762 Comment
  UCD117173  Cornus nuttallii Kathleen Keliher 1975-4-30 74 Yuba Along road between Bullards Bar Dam and Challenge. 762 Comment
  SEINET12137803  Cornus nuttallii F. H. Utech 1990-1 90 -868 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  CAS-BOT-BC210528  Cornus sessilis Lloyd W. Swift 1932-5-17 56 Yuba Plumas National Forest. Near Slate Cr. on Scales Road 1219 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
  CDA3696  Coronopus didymus L. Ahart 1999-9-17 8250 Yuba Sam Shintaffer Farm, south of Woodruff Lane, south of Mathews Road, about 1/4 mile south of Sam Shintaffer s rice dryer, about 4 1/2 miles (air) northeast of Marysville. Comment
  CHSC116269  Crassula aquatica Lowell Ahart 2015-11-19 20690 Yuba 100 yards or more north of spillway area, below high water line, west of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  CHSC90488  Crassula tillaea Lowell Ahart 2005-3-11 11597 Yuba On the west side of the poor dirt road, about 1/2 mile west of Marysville Road, about 1/4 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/4 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 344 Comment
  RSA715481  Crassula tillaea L. Ahart 2005-3-11 11597 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
  UCR200886  Croton setiger George K. Helmkamp, E. A. Helmkamp 2008-9-18 14129 Yuba Foothills, northern Sierra Nevada Mountains, Bullards Bar Dam, along Marysville Road, 6 miles southwest of its junction with CA-49 616 Comment
  HSC7972  Croton setiger T. F. Newman 1965-10-9 6552 Yuba Carnes Ranch, 10 mi. N of Marysville Comment
  UCD37842  Crucianella Beecher Crampton 1962-4-24 6239 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. 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
  UCD37137  Crucianella angustifolia Beecher Crampton 1957-6-5 4163 Yuba Town of Timbuctoo, across from old Stewart and Brothers and Wells Fargo Store. Comment
  SEINET7042666  Crucianella angustifolia A. G. Vestal 1963-5-29 s.n. Yuba Along the road to Smartville, 0.4 mile southwest of road to Beale Airforce Base. Camp Far West quadrangle UTM Zone 10, 644119mE, 4329948mN. Comment
  UCD121546  Crucianella angustifolia Beecher Crampton 1957-6-5 4163 Yuba Town of Timbuctoo, across from old Stewart and Brothers and Wells Fargo Store. 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
  CHSC113179  Crypsis vaginiflora Lowell Ahart 2013-11-30 19301 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
  UCD59961  Crypsis vaginiflora Beecher Crampton 1958-7-11 5008 Yuba 4.7 miles northeast of Wheatland. Comment
  CHSC46747  Cryptantha affinis Lowell Ahart 1980-8-12 2544 Yuba Large gravel bar that is formed by a debris dam across Slate Creek, west of Gold Run Creek, east of Onion Creek, about 7 air miles south of La Porte. 1158 Comment
  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-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
  CHSC45223  Cupressus macnabiana Lowell Ahart 1976-11-7 1001 Yuba On the east side of Frenchtown Road, about 1 mile north of Oregon House. 457 Comment
  NY16728  Cupressus macnabiana C. B. Wolf 1934-10-4 6156 Yuba This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA17594  Cupressus macnabiana C. B. Wolf, E. R. Johnson 1934-10-3 6151 Yuba Texas Hill, 2 miles west of Dobbins. Sierra foothills 549 Comment
  RSA17595  Cupressus macnabiana C. B. Wolf, E. R. Johnson 1934-10-3 6152 Yuba Texas Hill, 2 miles west of Dobbins. Sierra foothills 549 Comment
  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
  UCD110802  Cupressus macnabiana Christopher Mallek 2008-1 s.n. Yuba Daken Flat. 675 Comment
  NY16725  Cupressus macnabiana C. B. Wolf 1934-10-3 6151 Yuba This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  CHSC97652  Cuscuta howelliana Lowell Ahart 2007-5-12 13789 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCD126295  Cuscuta howelliana F. T. Griggs 1978-5-13 s.n. Yuba on Steen property, 6 miles east of Wheatland. 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
  CDA41307  Cuscuta japonica J. Deviney, Anderson, Umino 2005-8-3 PDR 1295323 Yuba Sacramento Valley; 4838 Western Ave, Olivehurst. 0 Comment
  CDA27730  Cuscuta japonica Todd Quist, Kevin Roush 2008-12-9 PDR# 1295536 Yuba Marysville, 5913 Garden Ave 0 Comment
  CDA41308  Cuscuta japonica B. Umino 2005-10-4 PDR 1295324 Yuba Sacramento Valley; 4838 Western Ave, Olivehurst. 0 Comment
  CHSC97730  Cuscuta pentagona Lowell Ahart 2007-11-8 14578 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  CHSC97772  Cuscuta pentagona Lowell Ahart 2007-11-1 14536 Yuba On Xanthium strumarium, on the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  JEPS113724  Cynodon dactylon Lowell Ahart 2007-5-14 13845 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  CAS-BOT-BC190396  Cynosurus echinatus Barbara T. Keller 1975-6-10 1512 Yuba Willow Glen Road from Stanfield Hill to Brownsville, about 11.5 miles north of junction of Willow Glen Road and Marysville Road. Comment
  CHSC107310  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. Small grassy meadow. 750 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
  SEINET11694608  Cynosurus echinatus F. H. Utech 1990-6-5 90 -861 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  JEPS94352  Cyperus bipartitus Lowell Ahart 1997-8-13 7865 Yuba about 2 1/4 air mi e of Browns Valley (on s side of Scott Forbes Road, 1/4 mi e of intersection of Scott Forbes Road and Peoria Road, just e of Gray Drive); Scott Forbes Road 91 Comment
  CHSC69436  Cyperus difformis Lowell Ahart 1997-8-13 7684 Yuba On the south side of Scott Forbes Road, 1/4 mile east of the intersection of Scott Forbes Road and Peoria Road, just east of Gray Drive, about 2 1/4 miles (air) east of Browns Valley. 91 Comment
  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
  CHSC96938  Cyperus eragrostis Lowell Ahart 2007-6-30 14229 Yuba Sides of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  JEPS64101  Cyperus eragrostis W. L. Jepson 1934-7-29 16760 Yuba Smartsville Comment
  JEPS95960  Cyperus eragrostis Lowell Ahart 1999-9-5 8196 Yuba on the disturbed area on the south side of Woodruff Lane; just west of Kimball Lane; about 5 miles (air) northeast of Marysville 24 Comment
  UCR179807  Cyperus eragrostis George K. Helmkamp, E. A. Helmkamp 2006-10-10 11524 Yuba Northern Sierra Nevada Mountains Foothills, along Calif. Hwy 49 just north of the Nevada County line at the Middle Yuba River bridge 451 Comment
  CAS-BOT-BC114574  Cyperus eragrostis W. V. Middlekauff 1954-9-11 s.n. Yuba 3 mi NW of Rio Oso Post Office. Comment
  CHSC81830  Cyperus erythrorhizos Lowell Ahart 2001-11-2 9404 Yuba Camp Far West Reservoir, about 1/4 mile northeastaa of the dam, about 9 miles (air) southeast of Wheatland. 83 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
  CHSC69455  Cyperus flavescens Lowell Ahart 1997-8-13 7865 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
  SEINET13710835  Cyperus iria Lowell William Ahart, Lowell William Ahart 1999-1 8197 Yuba 5 Mi NE of Marysville Comment
  JEPS103482  Cyperus niger Lowell Ahart 2002-10-8 9946 Yuba On the edge of a pond, ca 100 yards N of Long Ravine Road, ca 300 yards SE of the intersection of Camp Far West Road and Long Ravine Road there is a poor gate on the N side of the road, N of Camp Far West Reservoir. 121 Comment
  CHSC43569  Cyperus rotundus Lowell Ahart 1978-10-28 1819 Yuba In the yard of Mr. and Mrs. Marion Bew, at H and 13th Street, Marysville. 30 Comment
  CAS-BOT-BC113999  Cyperus rotundus Lowell Ahart 1978-10-28 s.n. Yuba H & 13th Streets, Marysville. Comment
  JEPS100265  Cytisus scoparius Dean W. Taylor 2001-5-9 17638 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  SEINET5327050  Cytisus scoparius M. J. Williams 1967-5-14 s.n. Yuba Camptonville 914 Comment
  CAS-BOT-BC190489  Dactylis glomerata Lowell Ahart 1979-6-25 s.n. Yuba 1 mile south of Challenge. 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
  UC1153912  Danthonia californica var. americana Beecher Crampton 1957-6-5 4159 Yuba 1.3 mi e Oregon House store Comment
  UCD60681  Danthonia californica var. americana Beecher Crampton 1966-6-14 7763 Yuba 1 mile west of Brownsville. Comment
  UCD60689  Danthonia californica var. americana Beecher Crampton 1957-7-5 4159 Yuba 1.3 miles east of Oregon House Store. Comment
  RSA653943  Danthonia unispicata Beecher Crampton 1966-6-14 7764 Yuba 1 mile east of Brownsville on La Porte road, near Brownsville Fire Station, CA div. of Forestry. Comment
  UCD33119  Danthonia unispicata Beecher Crampton 1966-6-14 7764 Yuba Yuba County, 1 mile east of Brownsville on La Porte road, near Brownsville Fire Station, CA div. of Forestry. Comment
  JEPS95893  Daucus carota Lowell Ahart 1999-9-5 8192 Yuba on the disturbed area on the south side of Woodruff Lane; just west of Kimball Lane; about 5 miles (air) northeast of Marysville 24 Comment
  JEPS118079  Daucus pusillus Lowell Ahart 2011-6-7 17370 Yuba Grassy road margin, about 50 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCD127493  Daucus pusillus Barbara Yungert 1974-5-13 148 Yuba north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UC635338  Delphinium gracilentum H. L. Mason 1927-5-11 3732 Yuba near Dobbins 457 Comment
  CAS-BOT-BC8792  Delphinium gracilentum B. T. Keller 1975-6-10 1518 Yuba Willow Glen Road, from Stanfield Hill to Brownsville, 11.5 mi. N of Junct. of Willow Glen Road & Marysville Road Comment
  CAS-BOT-BC8559  Delphinium hansenii Lewis Samuel Rose 1940-5-28 40379 Yuba Browns Valley 60 Comment
  HSC47883  Delphinium hansenii H. Lewis, Carl Epling 1941-5-26 Yuba Smartville Comment
  RSA149649  Delphinium hansenii Harlan Lewis, C. Epling 1941-5-26 s.n. Yuba Smartville 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
  UCD96557  Delphinium patens Barbara Yungert 1974-4-6 54 Yuba Near path behind U.S.G.S. Stream Measuring Station, below Englebright Dam, Sierra Foothill Field Station. 152 Comment
  CAS-BOT-BC116482  Delphinium patens subsp. patens Ella D. Cantelow 1968-5-6 s.n. Yuba Near Gales Orchard ca. 6 miles east of Camptonville 1249 Comment
  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
  SEINET7042738  Delphinium variegatum A. G. Vestal 1963-5-30 s.n. Yuba Roadside between Daken Flat and the road north northeast to Brownsville. 5.3 miles north of the Dry Creek bridge. Rackerby quadrangle UTM Zone 10, 647847mE, 4368678mN. Comment
  SEINET4566882  Deschampsia danthonioides A. Tiehm 1975-1 645 Yuba U.C. Sierra Foothill Field Station 274 Comment
  CAS-BOT-BC201731  Deschampsia elongata Barbara T. Keller 1975-6-10 1498 Yuba Challenge Experimental Forest on La Porte Road near Challenge 762 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
  UCR206958  Dicentra formosa George K. Helmkamp, E. A. Helmkamp 2009-5-28 14830 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 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
  UCD114219  Dicentra formosa subsp. formosa R. N. Raynor 1939-3-25 s.n. Yuba Near Marysville. Comment
  JEPS95481  Dichanthelium acuminatum subsp. fasciculatum Lowell Ahart 1994-6-5 7308 Yuba 3 air miles E of Forbestown (E side of Forbestown Road) 853 Comment
  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
  CHSC59577  Dichelostemma capitatum subsp. capitatum H. E. Mac Lennan 1992-4-15 17 Yuba 20 air miles se of Oroville. 518 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
  UCR231333  Dichelostemma multiflorum George K. Helmkamp, E. A. Helmkamp 2011-5-6 17184 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.3 mile north of the junction with Hokan Lane, vicinity of Camp Far West Reservoir 105 Comment
  CAS-BOT-BC500916  Dichelostemma multiflorum L. S. Smith 1926-5-18 1869 Yuba Tahoe Forest, north side South Fork of Yuba, Downieville Road 762 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
  UCD139254  Dichelostemma multiflorum R. O. Hanes 1992-4-6 50 Yuba Plumas Forest. 731 Comment
  UCD139262  Dichelostemma multiflorum Barbara Yungert 1974-5-6 121 Yuba along Scott Lane, western SC -19 project area, Sierra Foothill Field Station. Comment
  RSA21179  Dichelostemma volubile Carl B. Wolf 1937-6-11 8778 Yuba Sierra Nevada foothills, 1.6 miles NW of Stanfield Hill, along a fork of So Honcut Creek. 305 Comment
  SEINET7042659  Dichelostemma volubile A. G. Vestal 1963-5-30 s.n. Yuba Turn off to Timbuctoo at Yuba river. Smartville quadrangle UTM Zone 10, 644012mE, 4342272mN. Comment
  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
  CDA42982  Digitaria sanguinalis L. Ahart 2013-11-3 19302 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. Comment
  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
  CHSC81846  Digitaria sanguinalis Lowell Ahart 2001-11-2 9408 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  CAS-BOT-BC153790  Diplacus angustatus Peter H. Raven 1953-5-9 5480 Yuba 2 miles from Brownsville on road to Dobbins 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
  CAS-BOT-BC151758  Diplacus kelloggii Alice Eastwood 1921-5-22 10550 Yuba Los Vergils Comment
  CAS-BOT-BC151635  Diplacus torreyi L. Beane; A. M. Vollmer 1951-7-1 192 Yuba Brownsville Comment
  CAS-BOT-BC154018  Diplacus torreyi Lowell Ahart 1980-6-19 2404 Yuba 3 1/2 miles south-east of Challenge 800 Comment
  CAS-BOT-BC151333  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
  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
  CHSC33917  Disporum hookeri M. S. Taylor; L. Hanson 1981-4-30 3579 Yuba On n side of 20N04.3, ca. 1 mi e of Clipper Mills. 1066 Comment
  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
  JEPS120505  Dittrichia graveolens M. S. Williams, T. M. Hanson 2012-10-31 Yuba Northern High Sierra Nevada. Plumas National Forest; approximately 1.3 air miles northeast of Challenge (1.7 road miles). Comment
  UCD80685  Dodecatheon clevelandii subsp. patulum CNPS SN Foothill Team 2005-3-16 SNFN 0057 Yuba CDFG, Spenceville Wildlife Area, ca. 0.75 mile up the Pitman Road, from junction of Smartville Road, just south of the road. 199 Comment
  CHSC59582  Dodecatheon hendersonii H. E. Mac Lennan 1992-3-14 1 Yuba 20 air miles se of Oroville. 472 Comment
  UCD118967  Dodecatheon hendersonii Barbara Yungert 1974-4-8 9 Yuba West of Forbes Hill Road, H-9 project area, Sierra Foothill Field Station. Comment
  UCD118970  Dodecatheon hendersonii Barbara Yungert 1974-4-16 49 Yuba Near wire gate, Koch Livestock Free Area, Sierra Foothill Field Station. Comment
  CHSC43509  Dopatrium junceum Lowell Ahart 1977-8-31 1559 Yuba On Shintaffer Farms, about 2 miles north-east of Marysville. 27 Comment
  UCR168801  Downingia David Charlton 2005-5-16 8029 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  SEINET7072720  Downingia bacigalupii A. G. Vestal 1963-5-7 s.n. Yuba About 3.5 miles north of Wheatland on Jasper Lane. UTM Zone 10, 636590E, 4323573mN. Coordinate datum: NAD 27. Comment
  RSA389177  Downingia bicornuta C. B. Wolf 1937-5-18 8736 Yuba Sacramento Valley, 2 mi S of Marysville 18 Comment
  JEPS5031  Downingia montana Lincoln Constance 1951-5-20 Yuba just s Brownsville 670 Comment
  JEPS78516  Downingia montana Lincoln Constance 1951-5-20 Yuba just s Brownsville 670 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
  JEPS108494  Downingia ornatissima var. ornatissima Lisa Schultheis 1996-5-23 305 -95 Yuba Beale Air Force Base. 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
  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
  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
  CAS-BOT-BC535048  Drymocallis glandulosa var. reflexa Elmer I. Applegate 1934-5-2 8892 Yuba Near Indian Valley Comment
  CAS-BOT-BC535050  Drymocallis glandulosa var. reflexa Peter H. Raven 1975-6-10 1496 Yuba Challange Experimental Forest, along La Porte Road near Challange 762 Comment
  UCD136425  Dryopteris arguta G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12828 Yuba Northern Sierra Nevada Mountains Foothills: Mountain House Road 0.6 mile west of Sierra county line. Sleighville area beside Willow Creek. 1021 Comment
  SEINET8472322  Dudleya cymosa C. Aarstad 1979-4-28 s.n. Yuba Browns Valley, junction of Rte. 20 and N Fork of the Yuba. 183 Comment
  UCD98749  Dysphania botrys Henry Michalk 1964-11-17 s.n. Yuba just north of Yuba River, ca. 3 miles north of North San Juan, State Highway 49. 609 Comment
  CHSC83043  Dysphania pumilio Lowell Ahart 2002-10-9 9954 Yuba Area east of a spring, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS121311  Dysphania pumilio Lowell Ahart 2013-11-30 19306 Yuba On the N side of Dry Creek, below the high water line of Collins Lake, about 300 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  UCD98836  Dysphania pumilio J. M. Tucker 1974-9-14 4341 Yuba At Rose Ranch, ca. 8 miles (by winding dirt road) northeast of Strawberry Valley, on Sierra-Yuba county line. Comment
  HSC9654  Echinochloa crus-galli T. F. Newman 1965-8-22 6564 Yuba Carnes Ranch, 10 mi. N of Marysville Comment
  UCD60822  Echinochloa crus-galli Beecher Crampton 1963-9-9 6878 Yuba 2.5 miles n.n.w. Smartsville, 5 miles east Brown's Valley. U.C. Sierra Foothill Field Station. Comment
  UCD60830  Echinochloa crus-galli Beecher Crampton 1963-9-9 6879 Yuba 2.5 miles n.n.w. Smartsville, 5 miles east Brown's Valley. U.C. Sierra Foothill Field Sta. Comment
  UCD60888  Echinochloa crus-galli Beecher Crampton 1964-10-22 7225 Yuba 3 miles east Brown's Valley, Dry Creek. Comment
  UCD67042  Echinochloa crus-galli G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12840 Yuba Northern Sierra Nevada Mountains: along Hwy. CA-49, 0.5 mile south of Camptonville. 817 Comment
  UCD61110  Echinochloa oryzicola Earl Storm 1997-7-24 Yuba Stass Farms, North Beale Road, Marysville. Comment
  CDA19024  Eichhornia crassipes unknown 2000-11-14 PDR 116726 Yuba Widespread in 3 acres on East Park, Marysville. Comment
  CHSC116028  Elatine Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20648 Yuba North of the spillway area, at the west side and near top of Lake Francis Dam, below the high water line of Lake Francis, about 1-1/2 miles south of Dobbins. 512 Comment
  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
  CAS-BOT-BC113668  Eleocharis Gordon H. True 1966-4-27 2707 Yuba About 5 miles E of Wheatland and 1 mi N of Bear River. 54 Comment
  UCD80266  Eleocharis acicularis CNPS SN Foothill Team 2005-7-5 SNNR 0529 Yuba CDFG Daugherty Hill Wildlife Area. 289 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
  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
  CHSC45167  Eleocharis bella Lowell Ahart 1980-6-19 2403 Yuba Near a small seep, near a dirt road, about 3 miles south-east of Challenge. 731 Comment
  CHSC78288  Eleocharis bella Lowell Ahart 2000-6-23 8507 Yuba On a dirt road, about 100 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  CHSC63295  Eleocharis bolanderi Lowell Ahart 1994-6-27 7375 Yuba In about the center of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  CHSC78293  Eleocharis bolanderi Lowell Ahart 2000-6-19 8494 Yuba Meadow, about 80 yards north of New York Flat Road, about 1 1/4 miles (air) northeast of Brownsville, about 2 1/4 miles (air) west of Challenge. 731 Comment
  CHSC78296  Eleocharis bolanderi Lowell Ahart 2000-7-13 8580 Yuba In a small meadow on the south side of Ridge Road, about 1/4 mile west of Our House, about 2 miles (air) east of Celestial Valley, about 2 1/2 miles (air) southeast of Camptonville. 975 Comment
  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
  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
  CHSC116038  Eleocharis engelmannii var. engelmannii Lowell Ahart 2015-11-19 20673 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
  CHSC78292  Eleocharis macrostachya Lowell Ahart 2000-7-13 8579 Yuba In a small meadow, on the south side of Ridge Road, about 1/4 mile west of Our House, about 2 miles (air) east of Celestial Valley, about 2 1/2 miles (air) southeast of Camptonville. 975 Comment
  CHSC96844  Eleocharis macrostachya Lowell Ahart 2007-6-30 14235 Yuba West side of a new ditch, near and west of a new road pad, about 350 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCR231322  Eleocharis macrostachya George K. Helmkamp, E. A. Helmkamp 2011-5-6 17206 Yuba East edge of Sacramento Valley, junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg. ) of Wheatland 56 Comment
  CAS-BOT-BC113034  Eleocharis macrostachya Gordon H. True; John Thomas Howell 1969-6-24 5099 Yuba Artificial lake ca. 1 mi. NW of Spenceville (site) on Cox Creek. 152 Comment
  SEINET13710973  Eleocharis macrostachya Lowell William Ahart, Lowell William Ahart 2000-1 8461 Yuba 6 Air Mi. S of Smartville (T15N, R6E, sec 9, SW 1/4) 480 Ft. 146 Comment
  UCD33112  Eleocharis montevidensis Beecher Crampton 1966-6-14 7757 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  CHSC116298  Eleocharis obtusa Lowell Ahart 2015-11-19 20689 Yuba 100 yards or more north of spillway area, below high water line, west side of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  CHSC116335  Eleocharis pachycarpa Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20642 Yuba On the bottom of the outflow area at the bottom of Lake Francis Dam, Lake Francis, about 1 1/2 miles south of Dobbins. 479 Comment
  CHSC78299  Eleocharis pachycarpa Lowell Ahart 2000-6-19 8490 Yuba Along a south branch of Dry Creek, on the south side of Marysville Road, about 1/4 mile west of the intersection of Marysville Road and Frenchtown Road, west of Oregon House, about 2 miles east of Collins Lake. 457 Comment
  CHSC83068  Eleocharis pachycarpa Lowell Ahart 2002-10-9 9949 Yuba Area south of a spring, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CHSC84933  Eleocharis pachycarpa Lowell Ahart 2003-10-11 10622 Yuba Small wash in a meadow, on the east side of a gravel road to the Rose Ranch, about 100 yards west of the paved road to Scales, about 1/2 mile south of the Rose Ranch, about 5 miles (air) northeast of Strawberry Valley, about 7 miles (air) southwest of La Porte. 1219 Comment
  JEPS124318  Eleocharis pachycarpa Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20642 Yuba Lake Francis, about 1 1/2 miles south of Dobbins. 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
  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
  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
  JEPS98361  Eleocharis quinqueflora Lowell Ahart 2000-6-23 8506 A Yuba 3 mi NE of Strawberry Valley (small meadow,100 yds E of the meadow along La Porte Road,100 yds N of Scales Road) 1219 Comment
  JEPS98439  Eleocharis quinqueflora Lowell Ahart 2000-5-25 8398 Yuba 6 air mi S of Smartville (sides of a deep wash, a N branch of Dry Creek, 2 mi N of intersection of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  JEPS98608  Eleocharis quinqueflora Lowell Ahart 2000-6-19 8493 Yuba Wet meadow, ca 100 yards N of New York Flat Road, ca 1 1/4 miles (air) NE of Brownsville, ca 2 1/4 miles (air) W of Challenge. 731 Comment
  UCR263568  Eleocharis quinqueflora Lowell Ahart 2000-6-19 8493 Yuba Sierra Nevada Mtns., about 100 yards north of New York Flat Road, about 1.25 miles (air) northeast of Brownsville, about 2.25 miles (air) west of Challenge 732 Comment
  RSA716309  Eleocharis quinqueflora L. Ahart 2000-6-19 8493 Yuba About 100 yards north of New York Flat Road, about 1.25 miles (air) northeast of Brownsville, about 2.25 miles (air) west of Challenge 732 Comment
  RSA716568  Eleocharis quinqueflora L. Ahart 2000-6-23 8506 Yuba About 80 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley 1220 Comment
  JEPS124319  Eleocharis radicans Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20641 Yuba Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CDA43379  Eleusine tristachya Gary Walker 2014-11-25 PDR# 510 P06303491 Yuba West of Highway 70, near Magnolia Road, eight miles north of Marysville. 0 Comment
  CDA14187  Elodea canadensis E. Finley 1998-4-8 s.n. Yuba Sierra Nevada; Yuba Water District Canal at Blacktop Rd. 0 Comment
  CDA36342  Elodea nuttallii Jonathan Heintz 2011-12-14 PDR# 1322430 Yuba Browns Valley, 9659 Stern Lane. 0 Comment
  CHSC97462  Elymus caput-medusae Lowell Ahart 2007-5-14 13859 Yuba In the center of a dirt road, 60 yards north of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville. 29 Comment
  UCR169018  Elymus caput-medusae David Charlton 2005-5-16 8014 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  UCD147098  Elymus elymoides var. elymoides Chuck Hughes 2013-5-16 382 Yuba Near margin of Camp Far West Reservoir. 95 Comment
  CDA14561  Elymus glaucus G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3038 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  UCD62317  Elymus glaucus Beecher Crampton 1957-6-5 4139 Yuba 1 mile east of Stanfield Hill. Comment
  CAS-BOT-BC203409  Elymus glaucus subsp. glaucus Lowell Ahart 1980-8-12 2566 Yuba Along Slate Creek 1250 Comment
  UCD62472  Elymus multisetus Beecher Crampton 1957-6-5 4136 Yuba 7.5 miles northeast of Brown's Valley town. 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
  CHSC69426  Epilobium brachycarpum Lowell Ahart 1997-8-30 7876 Yuba On the west side of the dirt road, in a clear cut, Peterson Ridge Road, about 3 miles (air) east of Challenge. 762 Comment
  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
  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
  JEPS104040  Epilobium ciliatum subsp. ciliatum Lowell Ahart 2003-7-2 10349 Yuba Seep on the e side of Fountain Hill Rd, ca 3 mi south of Oregon Hill Rd, ca 1/2 mi (air) n of Fountain House Hill, ca 3 mi (air) ne of Dobbins. 841 Comment
  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
  JEPS103440  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2002-10-9 9957 Yuba Along Lost Creek, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  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
  JEPS104592  Epilobium densiflorum Lowell Ahart 2003-7-17 10413 Yuba On the sides of a stream, on the w side of Smartville Rd, ca 2 mi n of the intersection of Waldo Rd and Smartville Rd, ca 6 mi (air) south of Smartville. 129 Comment
  SEINET3449473  Epilobium densiflorum Unknown 2003-7-17 10413 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
  CHSC84244  Epilobium torreyi Lowell Ahart 2003-7-17 10414 Yuba On the sides of a stream, on the west side of Smartville road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 129 Comment
  SEINET7072984 Image available Epilobium torreyi A. G. Vestal 1963-5-29 s.n. Yuba About 0.4 mile west of Erle Road on Hammonton-Smartville Road. UTM Zone 10, 638165mE, 4337165mN. Coordinate datum: NAD27). Comment
  HSC868  Equisetum hyemale subsp. affine T. F. Newman 1964-4-15 6440 Yuba Feather River near Marysville Comment
  UCD135395  Equisetum hyemale subsp. affine Kathleen Keliher 1975-4-30 79 Yuba Ca. 200 feet from Marysville Road near Oregon Creek. 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
  JEPS95149  Eragrostis mexicana subsp. virescens Lowell Ahart 1997-8-13 7866 Yuba about 2 1/4 air mi e of Browns Valley (on s side of Scott Forbes Road, 1/4 mi e of intersection of Scott Forbes Road and Peoria Road, just e of Gray Drive); s side of Scott Forbes Road 91 Comment
  SEINET3015267  Eragrostis mexicana subsp. virescens L. Ahart 1997-8-13 7866 Yuba On the south side of Scott Forbes Rd, 1.4 mi E of the intersection of Scott Forbes Rd and Peoria Rd., just E of Gray Drive about 2 1/4 mi 9air) E of Browns Valley. 91 Comment
  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
  JEPS94364  Eragrostis pectinacea var. pectinacea Lowell Ahart 1997-8-13 7867 Yuba about 2 1/4 air mi e of Browns Valley (on s side of Scott Forbes Road, 1/4 mi e of intersection of Scott Forbes Road and Peoria Road, just e of Gray Drive); Scott Forbes Road 91 Comment
  CAS-BOT-BC131511  Ericameria arborescens Carl B. Wolf; E. R. Johnson 1934-10-4 6153 Yuba Texas Hill, about 2 miles from Dobbins 457 Comment
  CHSC112953  Ericameria arborescens L. P. Janeway 2014-11-6 11582 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 2.1 air km south-southwest of Oregon Peak, 0.2 km north of Marysville Road. 762 Comment
  OBI5769  Ericameria arborescens Carl B. Wolf 1934-10-4 6153 Yuba Texas Hill, about 2 mi from Dobbins 457 Comment
  CHSC76268  Erigeron canadensis Lowell Ahart 1999-9-17 8253 Yuba Sam Shintaffer Farm, on the west side of Kimball Lane, near the intersection of Kimball Lane and Hallwood Blvd., about 3/4 mile south of Sam Shintaffer's rice dryer, about 4 1/4 miles (air) northeast of Marysville. 22 Comment
  CHSC97682  Erigeron canadensis Lowell Ahart 2007-11-1 14531 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  UCD131914  Erigeron foliosus Barbara Yungert 1974-5-23 173 Yuba along road near powerhouse, below Englebright Dam, Sierra Foothill Field Station. Comment
  CAS-BOT-BC295160  Erigeron inornatus Lowell Ahart 1983-8-10 4272 Yuba Along the Peterson Ridge Road, about 4 miles south-east of Challenge 1000 Comment
  CHSC84170  Erigeron inornatus var. inornatus Lowell Ahart 2003-7-6 10358 Yuba Near a meadow, east of the power line, about 60 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  SEINET10839187 Image available Erigeron inornatus var. viscidulus Lowell Ahart, Peter Ahart 1983-8-10 Ahart 4272 Yuba Peterson Rd, ca. 4 mi se of Challenge. Yellow Pine Forest; 1000 m. 1000 Comment
  CAS-BOT-BC295784  Erigeron petrophilus var. sierrensis Lowell Ahart 1980-8-12 2528 Yuba About 2 miles south-east of Woodleaf 800 Comment
  CHSC46918  Erigeron petrophilus var. sierrensis Lowell Ahart 1980-8-12 2528 Yuba Near the dirt road, about 2 miles south-east of Woodleaf. 731 Comment
  JEPS95030  Erigeron petrophilus var. sierrensis Lowell Ahart 1997-8-7 7809 Yuba about 3 air mi se of Challenge (on n side of the dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  CHSC96977  Erigeron philadelphicus Lowell Ahart 2007-8-7 14427 Yuba About 200 yards south of Hampshire Creek Meadow, about 30 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  SBBG8139  Erigeron philadelphicus H. and M. Dearing 1939-5-6 3285 Yuba near Challenge Comment
  CAS-BOT-BC216038  Eriodictyon californicum Alice Eastwood 1930-4-12 s.n. Yuba Marysville Flower Show Comment
  CHSC68479  Eriodictyon californicum Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7729 Yuba North of the poor dirt road, south of Dry Creek, about 1 1/4 miles east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 137 Comment
  JEPS113102  Eriodictyon californicum Lowell Ahart 2007-4-17 13688 Yuba On the north side of the poor dirt fireguard, about 50 yards northwest of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  JEPS94321  Eriodictyon californicum Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7729 Yuba North of the poor dirt road, south of Dry Creek, about 1 1/4 miles east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville 137 Comment
  RSA726489  Eriodictyon californicum L. Ahart 2007-4-17 13688 Yuba Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5.5 miles (air) northeast of Loma Rica. 293 Comment
  UC1124296  Eriodictyon californicum M. A. Elvin 1933-6-23 31 Yuba 1 mi w Hansonville; Smartsville Quad. Comment
  UC410442  Eriodictyon californicum Alice Eastwood 1930-4-12 Yuba Comment
  CAS-BOT-BC261458  Eriogonum nudum var. nudum Lowell Ahart 1980-8-12 2535 Yuba Along Slate Creek 1250 Comment
  CHSC69142  Eriogonum nudum var. oblongifolium Lowell Ahart 1997-8-7 7834 Yuba On the north side of the dirt road, northwest of the bridge across Indian Creek, about 3 miles (air) east of Challenge. 762 Comment
  CAS-BOT-BC261708  Eriogonum nudum var. oblongifolium Lowell Ahart 1980-8-12 2525 Yuba Ca. 2 miles south-east of Woodleaf 800 Comment
  CDA22676  Eriogonum umbellatum var. ahartii L. Ahart 2002-9-8 9935 Yuba Along a small wash, on the north side of the dirt road, about 1 mile southeast of Woodleaf, about 3 miles (air) northeast of Challenge. Comment
  CHSC69146  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-8-7 7835 Yuba On the north side of the dirt road, northwest of the bridge across Indian Creek, about 3 miles (air) east of Challenge. 762 Comment
  CHSC69147  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-8-9 7838 Yuba On the west side of the dirt road, about one mile (air) south of Woodleaf. 944 Comment
  CHSC69429  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-8-30 7875 Yuba In the gutter on the north side of Forbestown Road, just west of Costa Creek, about 2 1/2 miles (air) southeast of Forbestown. 853 Comment
  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
  JEPS104649  Eriogonum umbellatum var. ahartii Lowell Ahart 2002-9-8 9935 Yuba serpentine area, along a small wash, N side of the dirt road, about 1 mi SE of Woodleaf, about 3 air mi NE of Challenge; Lat. 39 deg. 30' 33.8, Long. 121 deg. 11' 01.7 1001 Comment
  JEPS95068  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-8-7 7835 Yuba about 3 air mi e of Challenge (on n side of dirt road, nw of the bridge across Indian Creek) 762 Comment
  CAS-BOT-BC265202  Eriogonum umbellatum var. speciosum Lowell Ahart 1980-8-12 2526 Yuba Ca. 2 mile south-east of Woodleaf, Sierra Nevada 800 Comment
  UCR196979  Eriophyllum lanatum var. achilleoides George K. Helmkamp, E. A. Helmkamp 2008-5-20 13464 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  CAS-BOT-BC301317  Eriophyllum lanatum var. croceum Lewis S. Rose 1939-6-6 39225 Yuba Brownsville 685 Comment
  JEPS127601  Eriophyllum lanatum var. croceum L. P. Janeway 2015-5-6 11671 Yuba Plumas National Forest; Forbestown, 510 m SSW of junction of Forbestown Road and Challenge-Cutoff Road. Comment
  CAS-BOT-BC308242  Eriophyllum lanatum var. grandiflorum Lewis S. Rose 1940-5-28 40385 Yuba Browns Valley 60 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
  CHSC69134  Eriophyllum lanatum var. grandiflorum Lowell Ahart 1997-8-7 7825 Yuba On the east side of the dirt road, near a unnamed stream, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  UCD132217  Eriophyllum lanatum var. grandiflorum W. R. Powell 1968-5-15 1493 a Yuba on Fountain House Road, 2 miles northeast of Dobbins. 792 Comment
  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
  UCR258226  Erodium botrys George K. Helmkamp, Amy Barnes 2013-3-28 20255 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  SEINET8526857  Erodium botrys R. T. Short 1961-4-11 s.n. Yuba 5 miles west of Smartville on Calif. 20 366 Comment
  CHSC97676  Erodium brachycarpum Lowell Ahart 2007-5-12 13796 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  RSA726411  Erodium brachycarpum L. Ahart 2007-5-12 13796 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  UCD37852  Erodium cicutarium Beecher Crampton 1962-4-24 6256 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  RSA125337  Eryngium castrense P. H. Raven, Otto T. Solbrig 1959-6-15 13225 Yuba 9.4 miles south of Marysville on Highway 99 Comment
Read comments Nov 8 2011
  UC1122964  Eryngium castrense M. A. Elvin 1933-6-7 23 Yuba 3 mi. s.e. of O'Brien's Ranch Smartsville Quad. Comment
  CDA18858  Eryngium castrense J. Horenstein 1999-6-9 s.n. Yuba NE of Cock's Creek, Spenceville Wildlife Area. 0 Comment
  UCD144170  Eryngium castrense Vernal Pool Team 2002; Carol Witham and Jennifer Buck 2002-6-5 352 Yuba Beale Air Force Base, North Beale Road. UTMs 10S0646172; 4300072. Comment
  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
  SEINET7067140  Eryngium vaseyi var. globosum A. G. Vestal 1947-4-30 s.n. Yuba About 5.1 miles west of Smartville on Route 20. Coordinate datum: NAD27. Comment
  CAS-BOT-BC54682  Erysimum capitatum Mrs. Martin Goerges 1953-6-24 s.n. Yuba Lake Vera, North Fork, Yuba River. Comment
  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
  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
  CHSC87346  Erythronium multiscapideum Lowell Ahart 2004-4-27 10769 Yuba About 20 yards north of a drainage, about 50 yards east of the road, about 1/2 mile (air) southeast of Woodleaf. 931 Comment
  SBBG988  Erythronium multiscapideum H. and M. Dearing 1939-5-8 3295 Yuba New York Crk Comment
  CAS-BOT-BC502832  Erythronium multiscapideum Volney Rattan 1880-1-1 s.n. Yuba Brownsville Comment
  SJSU8125  Erythronium multiscapideum J. B. Willis Jr. 1969-4-19 Yuba Marysville Rd 0.5 mi W of Oregon House P.O., 7.5 mi W of Dobbins Comment
  UCD139644  Erythronium multiscapideum Kathleen Keliher 1975-4-12 59 Yuba near boat launch, Englebright Reservoir, C 1-11 project area, Sierra Foothill Field Station. 152 Comment
  CHSC90463  Eschscholzia caespitosa Lowell Ahart 2005-3-11 11615 Yuba Large rock outcrop, south slope, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 395 Comment
  CAS-BOT-BC402629  Eschscholzia caespitosa E. C. Cramsie 1924-4-1 s.n. Yuba Smartsville Comment
  RSA21286  Eschscholzia lobbii Carl B. Wolf 1937-5-12 8630 Yuba 4 miles NE of Wheatland on road to Grass Valley 61 Comment
  UCD95379  Eschscholzia lobbii M. Sciuto-Creps 1998-4-26 32 Yuba 7 miles northeast of the town of Wheatland, in the property adjacent to the southeast end of Beale Air Force Base, about half a mile NE of Best Slough. Comment
  OBI69837  Eucalyptus globulus Jenn Yost and Matt Ritter, Matt Ritter 8-Apr 38 Yuba Plumas Arboga and I 70, in back yard of a house, near tracks Comment
  CHSC63247  Euphorbia crenulata Lowell Ahart 1994-6-5 7296 Yuba On the north side of Costa Creek, on the south side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  CDA4807  Euphorbia lathyris R. W. Nelson 1958-5-27 466 -58 Yuba 0 Comment
  CAS-BOT-BC202418  Euphorbia ocellata J. T. Howell; Gordon H. True 1969-6-24 5100 Yuba Ca. 1 mile NW of Spenceville (site) on Cox Creek 152 Comment
  CHSC68476  Euphorbia peplus Lowell Ahart 1997-4-6 7717 Yuba On the south side of the road, east of the intersection of Scott Forbes Road and Peoria Road, just southeast of the bridge across Dry Creek, about 14 miles northeast of Marysville. 60 Comment
  CDA4860  Euphorbia peplus R. Noise 1960-3 Yuba 0 Comment
  CHSC95074  Eurybia radulina L. P. Janeway; Erin Brandy 2006-10-3 8899 Yuba Northern High Sierra Nevada. Plumas National Forest; near La Porte Road 1.5 km west of American House; on broad ridge top between Slate Creek and Lost Creek. 1492 Comment
  CAS-BOT-BC312190  Eurybia radulina L. P. Janeway 1993-9-7 4590 Yuba About 3 mi. east of Woodleaf ca 3 mi. southwest of Clipper Mills, La Porte Ranger District, Woodleaf Compartment, Plumas National Forest 1043 Comment
  CAS-BOT-BC312191  Eurybia radulina Lowell Ahart 1983-8-10 4276 Yuba About 2 miles east of Clipper Mills 1000 Comment
  CHSC116311  Euthamia occidentalis Lowell Ahart 2015-11-19 20670 Yuba Spillway area, at the west side and near the top of Lake Francis Dam, about 1 1/2 miles south of Dobbins. 512 Comment
  CAS-BOT-BC459238  Euthamia occidentalis Lowell Ahart 1978-9-24 s.n. Yuba 2 miles NE of Marysville on Sam Shintaffer Farm 35 Comment
  CAS-BOT-BC413883  Fallopia convolvulus Lowell Ahart 2007-5-14 13842 Yuba East and west of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  CHSC97660  Fallopia convolvulus Lowell Ahart 2007-5-14 13842 Yuba East and west of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 20 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  CHSC100769  Festuca californica var. californica L. P. Janeway 2008-5-11 9356 Yuba Northern High Sierra Nevada. About 0.8 km north-northeast of Challenge; Golden Gate Ravine side of the ridge between that and Jordan Creek; west side of Road 19N04 1.1 km north-northwest of Challenge-La Porte Road. Near head of dry northwest-sloping swale. 994 Comment
  CAS-BOT-BC278797  Festuca occidentalis Lowell Ahart 1979-6-25 s.n. Yuba 1 mile south of Challenge 700 Comment
  CHSC41203  Festuca occidentalis J. D. Jokerst 1984-7-5 2081 Yuba Canyon of Deadwood Creek between the creek and Weed Point. 883 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
  RSA726543  Filago gallica L. Ahart 2007-5-12 13768 Yuba About 13 miles (air) northeast of Marysville. 28 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
  JEPS121800  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. Comment
  CAS-BOT-BC454547  Fragaria vesca subsp. californica Lowell Ahart 1968-4-20 s.n. Yuba Five miles southeast of Challenge 457 Comment
  CAS-BOT-BC53656  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-BC53658  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-5 1443 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-BC53661  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-5 1444 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-BC53662  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-BC53664  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1447 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-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-BC53669  Frangula californica subsp. tomentella Carl B. Wolf; E. R. Johnson 1934-10-4 6155 Yuba Sierra Nevada Foothills. Texas Hill, 2 mi. W. of Dobbins 457 Comment
  CAS-BOT-BC53671  Frangula californica subsp. tomentella Alice Eastwood 1921-5-22 10530 Yuba Los Vergeles Comment
  LA207667  Frangula californica subsp. tomentella C. B. Wolf; 1927-11-5 1447 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  LA207668  Frangula californica subsp. tomentella C. B. Wolf; 1927-11-5 1445 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  OBI5863  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1447 Yuba Browns Valley to Smartsville rd, along left bank of Yuba river, near bridge 152 Comment
  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
  SBBG27500  Frangula californica subsp. tomentella C. B. Wolf 1927-11-5 1444 Yuba Browns Valley to Smartsville Rd, along left bank of Yuba River, near bridge 152 Comment
  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
  SD22795  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  UCD112791  Frangula californica subsp. tomentella W. R. Powell 1968-5-24 1547 a Yuba at C. D. F. fire station in Brownsville. 649 Comment
  UCD112803  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
  UCD112806  Frangula californica subsp. tomentella Barbara Yungert 1974-5-8 131 Yuba north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  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
  CAS-BOT-BC53823  Frangula rubra Carl B. Wolf 1934-10-4 6154 Yuba Sierra Nevada foothills. Texas Hill, 2 mi. w. of Dobbins 457 Comment
  CHSC69149  Frangula rubra Lowell Ahart 1997-8-7 7822 Yuba On the east side of the dirt road, near an unnamed stream, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  CHSC112863  Frangula rubra subsp. obtusissima L. P. Janeway 2014-4-24 11234 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  CHSC113643  Frangula rubra subsp. obtusissima L. P. Janeway 2014-5-12 11252 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  CHSC46513  Frangula rubra subsp. obtusissima Lowell Ahart 1976-5-6 1094 Yuba Along the edge of Ponderosa Way, near the Brownville Dump, south-west of Brownsville. 487 Comment
  HSC100759  Frangula rubra subsp. obtusissima L. P. Janeway 2011-8-10 10638 Yuba Plumas National Forest, SE side of Rd. 19N04, 1.3 km N of Challenge-La Porte Rd., 2.2 air km NE of Challenge. 1023 Comment
  SBBG50631  Frangula rubra subsp. obtusissima D. Youngberg 1968-5-5 1017 Yuba ca. 1 mi S of Camptonville on St Hwy 49 Comment
  CAS-BOT-BC55739  Frangula rubra subsp. rubra Lowell Ahart 1976-5-6 s.n. Yuba Near the Brownsville Dump, Brownsville 457 Comment
  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
  HSC100760  Frangula rubra subsp. rubra L. P. Janeway 2011-8-10 10639 Yuba Plumas National Forest, SE side of Rd. 19N04, 1.3 km N of Challenge-La Porte Rd.; 2.2 air km NE of Challenge. 312 Comment
  CAS-BOT-BC223487  Fraxinus latifolia Alice Eastwood 1913-7-3 3408 Yuba Wheatland Comment
  CAS-BOT-BC205976  Fremontodendron californicum Wayne Roderick 1981-5-24 s.n. Yuba Near Dobbins Comment
  CHSC43325  Fremontodendron californicum Lowell Ahart 1976-5-6 1093 Yuba Near the Brownsville Dump, along Ponderosa Way, south-west of Brownsville. 457 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
  CHSC88993  Fremontodendron californicum L. Hanson 1984-5-21 244 Yuba Plumas National Forest. Brownsville Dump. 640 Comment
  UCD80804  Fremontodendron californicum CNPS SN Foothill Team 2005-5-31 SNFN 0329 c Yuba BLM, Ponderosa Landfill. 699 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
  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
  CHSC33890  Fritillaria eastwoodiae M. S. Taylor 1981-4-15 3537 Yuba N side of Forbestown-Woodleaf Rd, ca. 3/4 mi e of its jct with Forbestown Rd, ca. 2 mi w of Woodleaf. 853 Comment
  CHSC33579  Fritillaria micrantha M. S. Taylor 1981-4-15 3539 Yuba In Brownsville, along LaPorte-Quincy Rd (Marysville-LaPorte Rd), near its jct with Rackerby Rd. 701 Comment
  CHSC47588  Fritillaria micrantha Lowell Ahart 1976-4-15 1074 Yuba On the east side of Ponderosa Way, at the Brownsville Dump, about 2 miles south-west of Brownsville. 457 Comment
  HSC72942  Fritillaria micrantha M. S. Taylor 1981-4-15 3539 Yuba Brownsville along La Potre-Quincy Rd. near its junction with Rackerby Rd. Comment
  HSC86846  Fritillaria micrantha Jim Jokerst, L. Ahart 1984-3-28 1944 Yuba Near Brownsville S of the Brownsville Dump, E of and adjacent to Ponderosa Way 0.65 mi. N of its junction with La Porte Rd. Comment
  SEINET10469564  Fritillaria micrantha Mary Susan Taylor, L. Hanson 1981-4-15 Taylor 3537 Yuba T19N R7E se sec 7, Clipper Mills quad. N side of Forbestown-Woodleaf Rd, ca. 3/4 mi E of its jct with Forbestown Rd, ca. 2 mi W of Woodleaf. 2800 ft. 853 Comment
  SEINET10469565  Fritillaria micrantha Mary Susan Taylor, L. Hanson 1981-4-15 Taylor 3539 Yuba T19N R6E center sec 34, Rackerby quad. In Brownsville along LaPorte-Quincy Rd (Marysville-LaPorte Rd), near its jct with Rackerby Rd about a block. Yellow Pine Forest; 2300 ft. 701 Comment
  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
  CHSC10803  Fritillaria recurva Lowell Ahart 1964-5-3 Yuba near Bullard's Bar Dam. 609 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
  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
  UCD80739  Galium divaricatum CNPS SN Foothill Team 2005-6-1 SNFN 0173 c Yuba CDFG, Daugherty Hill Wildlife Area, in the 'C' shaped parcel located to the east of the Daugherty Hill unit. 623 Comment
  CHSC97200  Galium mollugo Lowell Ahart 2007-8-7 14426 Yuba Small open flat, about 200 yards south of Hampshire Creek Meadow, about 30 yards est of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  CHSC47478  Galium parisiense Lowell Ahart 1981-6-13 2845 Yuba Along the new gravel road, on the north-east side of McGinn Hill, east of Loma Rica. 304 Comment
  UCD33813  Galium parisiense Beecher Crampton 1973-6-22 8954 Yuba Yuba County, ca. 3 miles east of Brown's Valley on Peoria road. Comment
  UCD37843  Galium parisiense Beecher Crampton 1962-4-24 6240 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCR169021  Galium parisiense David Charlton 2005-5-16 8008 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  UCR232252  Galium parisiense George K. Helmkamp, E. A. Helmkamp 2011-5-6 17215 Yuba Eastern edge of Sacramento Valley, Camp Far West Road, 1.3 miles southeast of its junction with Spenceville Road, 5.25 mi. NE (52 deg. ) of Wheatland 62 Comment
  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
  CHSC97458  Galium sparsiflorum subsp. glabrius Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-9-18 14499 Yuba Open meadow, about 20 yards east of the dirt road, Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills. 1015 Comment
  JEPS115066  Galium sparsiflorum subsp. glabrius Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14499 Yuba Open meadow, about 20 yards east of the dirt road, Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills 1015 Comment
  CDA14573  Galium trifidum G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3053 Yuba La Porte _ Quincy Road 3.6 miles northeast of Strawberry Valley at the Plumas county line. 1280 Comment
  CHSC97752  Galium trifidum Lowell Ahart 2007-11-1 14529 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  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
  RSA697054  Gastridium phleoides L. Ahart 2003-6-29 10319 Yuba On the east side of Ponderosa Way, about 1 1/2 miles north of La Porte Road, about 1 mile (air) west of Brownsville. 702 Comment
  RSA726414  Gastridium phleoides L. Ahart 2007-5-12 13827 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  CDA8341  Gastridium phleoides D. Wilson 2008-6-3 PDR# 147086 Yuba Oregon House, 9448 Rice s Texas Hill Rd. near Tehama Way. 0 Comment
  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
  JEPS113574  Gaultheria ovatifolia Lowell Ahart 2007-8-7 14425 Yuba South of Hampshire Creek Meadow, graded edges of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  SJSU10225  Gaultheria ovatifolia C. W. Sharsmith 1983-6-8 8806 Yuba near Slate Cr bridge crossing of Scales & Quincy-La Porte Rds 1066 Comment
  UCD103353  Geranium dissectum Kathleen Keliher 1975-5-15 106 Yuba Along Marysville Road, 1.5 miles east of Dobbins. 502 Comment
  UCD117956  Gilia tricolor Kathleen Keliher 1975-4-21 67 Yuba one quarter of a mile from dirt road, 70 meters from Yuba River, F-2 project area, Sierra Foothill Field Station. 152 Comment
  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
  UCD72432  Githopsis specularioides Kathleen Keliher 1975-5-3 86 Yuba Sierra Foothill Field Station, Higher Cook Road, K 1-11 project area. 228 Comment
  CHSC81799  Glinus lotoides Lowell Ahart 2001-11-2 9401 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 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
  RSA727528  Glinus lotoides L. Ahart 2007-11-8 14582 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 74 Comment
  SBBG121295  Glinus lotoides L. Ahart 2007-11-8 14582 Yuba strand of Camp Far West Reservoir, ca. 0.5 mi S of Rock Crk, ca. 1/8 mi N of Bear River, ca. 6 mi (air) NE of Sheridan 73 Comment
  CDA2105  Glyceria declinata J. F. Williams Mar 1984 s.n. Yuba 0 Comment
  CHSC76311  Glyceria declinata Lowell Ahart 1999-9-17 8248 Yuba In a rice field, Sam Shintaffer Farm, south of Woodruff Lane, south of Mathews Road, 100 yards south of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  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
  UCD14575  Glyceria declinata John 'Jack' F. Williams 1984-3-1 s.n. Yuba Yuba County: Comment
  CAS-BOT-BC280560  Glyceria elata Lowell Ahart 1979-6-25 s.n. Yuba 1 mi s of Challenge 700 Comment
  SJSU10211  Glyceria elata C. W. Sharsmith 1983-6-7 8792 Yuba meadow, Rose Ranch c. 4 mi NE of Strawberry Valley (Yuba Co) on La Porte-Quincy Road; Yuba & Sierra county boundary 1432 Comment
  CHSC27057  Glyceria occidentalis Lowell Ahart 1978-4-2 Yuba 2 mi ne of Marysville. Found along the edges of rice levees on the Sam Shintaffer Farm. 30 Comment
  CAS-BOT-BC303822  Gnaphalium John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54073 Yuba 1.4 miles SW of Bullards Bar Dam on road to Challenge 609 Comment
  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
  CHSC116303  Gnaphalium palustre Lowell Ahart 2015-11-18 20664 Yuba 100 yards or more north of the spillway area, below the high water line, west side of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  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
  CHSC83035  Gnaphalium palustre Lowell Ahart 2002-10-9 9952 Yuba Along Lost Creek, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CAS-BOT-BC303349  Gnaphalium palustre Rimo Bacigalupi 1927-7-2 1579 Yuba Road to Downieville 2 miles W of Camptonville Comment
  UC1118572  Grindelia hirsutula H. S. Yates 1933-5-24 3642 Yuba near Toland Ranch; Smartsville Quad. Comment
  CDA14557  Grindelia hirsutula var. davyi G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3033 Yuba 1.4 miles west of New Bullards Bar Dam, between Log Cabin and Camptonville. 609 Comment
  CHSC115895  Grindelia hirsutula var. davyi L. P. Janeway 2015-6-29 11787 Yuba Northern High Sierra Nevada. Plumas National Forest; Weiss Hill Meadow, a large meadow 600 air-km east-southeast of junction of Weiss Hill Road and Forbestown Road; at the head of a minor northwestern tributary to New York Creek. 853 Comment
  CDA31981  Hainardia cylindrica L. 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. Comment
  SEINET11836554  Haplopappus arborescens Unknown 1975-1 987 Yuba near Bullards Bar Dam 610 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
  UCD33243  Hedypnois cretica Beecher Crampton 1967-5-17 7943 Yuba 5 miles east of Brown's Valley, sierra foothill range field station. Comment
  UCR118923  Hedypnois cretica Beecher Crampton 1967-5-17 7943 Yuba Central Sierra Nevada foothills, 5 Miles east of Brown's Valley, Sierra foothill range field station. 366 Comment
  CAS-BOT-BC306333  Hedypnois cretica Carl B. Wolf 1937-5-13 8631 Yuba Sierra Nevada Foothills, 2 mi. above Browns Valley on road to Stanfield Hill 121 Comment
  CAS-BOT-BC306336  Hedypnois cretica B. Crampton 1957-6-5 4130 Yuba 2.6 miles northeast of Brown's Valley Post Office Comment
  RSA115530  Hedypnois cretica Beecher Crampton 1957-6-5 4130 Yuba 2.6 miles NE Brown's Valley post office. Comment
  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
  JEPS118299  Hedypnois rhagadioloides Lowell Ahart 2011-6-7 17377 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CAS-BOT-BC314787  Helianthella californica var. nevadensis Lloyd W. Swift 1932-5-10 55 Yuba Near Dobbins, Mt. Misery, Plumas Forest 762 Comment
  JEPS34865  Helianthus bolanderi R. F. Hoover 1936-7-31 1589 Yuba Wheatland Comment
  CAS-BOT-BC309976  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
  SEINET7072980  Hemizonia fitchii A. G. Vestal 1963-5-29 s.n. Yuba Beale Road (Route 20) & Route 99 at Yuba City northwest of Wheatland. UTM Zone 10, 618094mE, 4333199mN. Coordinate datum: NAD27). Comment
  CDA7043  Hemizonia fitchii A. C. Browne 1951-5-15 Yuba Marysville. 0 Comment
  RSA7607  Hemizonia luzulifolia subsp. rudis C. B. Wolf, B. D. Stark 1933-09 5504 Yuba Marysville airport, 2 miles N of Marysville; Sacramento Valley. 15 Comment
  CAS-BOT-BC310179  Hesperevax caulescens Lowell Ahart 2007-5-12 13775 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC97673  Hesperevax caulescens Lowell Ahart 2007-5-12 13775 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  LA6491  Hesperocyparis macnabiana Carl Epling; June 1938 sn Yuba near Brownsville Comment
  CHSC107429  Hesperolinon micranthum L. P. Janeway 2011-8-10 10642 Yuba Northern High Sierra Nevada. Plumas National Forest; serpentine slope on southeast side of Road 19N04 1.3 km north of Challenge-La Porte road; 2.2 air km northeast of Challenge. 1023 Comment
  CHSC47433  Hesperolinon micranthum Lowell Ahart 1976-5-27 1132 Yuba Along Ponderosa Way, near the Brownsville Dump, south-west of Brownsville. 548 Comment
  CHSC76315  Heteranthera limosa Lowell Ahart 1999-9-17 8240 Yuba In a rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  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
  JEPS95855  Heteranthera limosa Lowell Ahart 1999-9-17 8240 Yuba about 5 miles (air) northeast of Marysville; ; south of Woodruff Lane; just east of Mathews Road; east of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  CDA2649  Heteranthera limosa L. Ahart 1999-9-17 8240 Yuba South of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer s rice dryer, about 5 miles (air) northeast of Marysville. Comment
  JEPS95854  Heteranthera rotundifolia Lowell Ahart 1999-9-17 8241 Yuba about 5 miles (air) northeast of Marysville; ; south of Woodruff Lane; just east of Mathews Road; east of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  CDA2656  Heteranthera rotundifolia L. Ahart 1999-9-17 8241 Yuba South of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer s rice dryer, about 5 miles (air) northeast of Marysville. Comment
  CHSC97499  Heterocodon rariflorum Lowell Ahart 2007-5-14 13875 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CAS-BOT-BC310276  Heterotheca grandiflora Lowell Ahart 1977-8-31 s.n. Yuba Sutter Buttes Area. About 2 miles northeast of Marysville, near Jack Slough on the Sam Shintaffer Farm 30 Comment
  CAS-BOT-BC420454  Heuchera micrantha var. erubescens Rimo Bacigalupi 1927-7-2 1586 Yuba highway to Downceville about 8 miles n.e. of Comptonville Comment
  CAS-BOT-BC55319  Hirschfeldia incana Lowell Ahart 1981-6-13 2855 Yuba Near McGinn Hill, Loma Rica. 300 Comment
  UCD33103  Hoita macrostachya Beecher Crampton 1966-6-14 7738 Yuba Yuba County, 5 miles east of Brown's Valley, Sierra Foothill Range Field Station. Comment
  CHSC84167  Hoita orbicularis Lowell Ahart 2003-7-6 10354 Yuba In a meadow, east of the power line, about 50 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  CAS-BOT-BC280822  Holcus lanatus Barbara T. Keller 1975-6-10 1494 Yuba Challenge Experimental Forest on La Porte Road near Challenge 762 Comment
  CHSC63210  Holcus lanatus Lowell Ahart 1994-6-27 7393 Yuba Along the north side of a stream, east of the logging road, east of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  RSA726805  Holcus lanatus L. Ahart 2007-6-22 14220 Yuba 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  SEINET4585087  Holcus lanatus A. Tiehm 1975-1 641 Yuba U.C. Sierra Foothill Field Station 198 Comment
  UCD51771  Holcus lanatus Beecher Crampton 1957-6-5 4112 Yuba Along State Hwy. 20, 5 miles east of Marysville. Comment
  UCR206948  Holcus lanatus George K. Helmkamp, E. A. Helmkamp 2009-5-28 14834 B Yuba Sierra Nevada Mountains Foothills, along CA-49, 2.2 miles north of the Camptonville exit 811 Comment
  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
  CAS-BOT-BC289260  Hordeum brachyantherum Pat Morgan 1981-5-17 115 Yuba Jct. Hwy. 49 & Yuba Ct. Rd. E21 Comment
  UCD33667  Hordeum brachyantherum subsp. brachyantherum Beecher Crampton 1971-6-18 8740 Yuba Sierra Foothill Range Field Station. Ca. 6.5 miles E of Browns Valley, E of headquarters. Comment
  UCD85375  Hordeum brachyantherum subsp. brachyantherum Beecher Crampton 1971-6-18 8740 Yuba Sierra Foothill Range Field Station. Ca. 6 miles E of Browns Valley. Comment
  UCD85831  Hordeum marinum subsp. gussoneanum Beecher Crampton 1957-6-5 4129 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  UCD86150  Hordeum murinum subsp. glaucum Beecher Crampton 1962-4-17 6172 Yuba Ca. 2 miles south of Marysville. 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
  UCR257540  Hordeum murinum subsp. murinum George K. Helmkamp 2014-4-17 22758 Yuba Sierra Nevada Foothills, Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville 264 Comment
  CAS-BOT-BC536175  Horkelia californica var. elata Alice Eastwood 1921-5-22 10545 Yuba Los Vergils Comment
  UCD113558  Horkelia tridentata Kathleen Keliher 1975-5-6 93 Yuba 300 meters off La Porte Road, 2 miles from Forbestown Road. 914 Comment
  CHSC11350  Horkelia tridentata subsp. flavescens Lowell Ahart 1970-4-5 Yuba Near Challenge. 914 Comment
  CHSC115286  Horkelia tridentata var. tridentata Lowell Ahart 2015-4-30 20126 Yuba Open forest, on the north side of the gravel road, about 30 yards east of the gate, about 3/4 mile (air) southeast of Woodleaf. 948 Comment
  JEPS121742  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. 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
  CDA19014  Hydrilla verticillata E. Finley 2000-9-1 PDR 1066499 Yuba Fellowship-Renaissance Winery, 23 Reservoir, Oregon House. 0 Comment
  CDA37746  Hydrilla verticillata Keith Miller 1976-11-24 s.n. Yuba Marysville, Ellis Lake, 9th & B Streets. 0 Comment
  CHSC79379  Hydrilla verticillata T. C. Fuller; G. D. Barbe 1976-11-1 2231 Yuba 9th and B Streets, Marysville. Comment
  SD97027  Hydrilla verticillata G. D. Barbe, T. C. Fuller 1976-11-1 2231 Yuba Southeast edge of freshwater Ellis Lake, to 4I(c) feet deep, 9th and B Streets, Marysville. Comment
  CDA1454  Hydrilla verticillata G. D. Barbe, T. C. Fuller 1976-11-3 2235 Yuba 9th and B Streets, Marysville. Southeast edge of freshwater Ellis Lake 0 Comment
  CDA37683  Hydrilla verticillata Breckenridge/O Connell 2004-5-17 s.n. Yuba Near Oregon House. 0 Comment
  RSA289629  Hydrilla verticillata G. D. Barbe, T. C. Fuller 1976-11-1 2231 Yuba 9th and B Streets, Marysville. Comment
  SEINET14165650 Image available Hydrilla verticillata T. C. Fuller, G. D. Barbe 1976-11-1 2231 Yuba SE edge of freshwater Ellis Lake, to 4-1/2' deep; 9th and B Streets, Marysville Comment
  UCD138152  Hydrilla verticillata Richard Yeo 1976-11-1 s.n. Yuba Marysville, Lake Ellis, 9th and B street. 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
  CHSC97121  Hypericum anagalloides Lowell Ahart 2007-8-7 14407 Yuba Hampshire Creek Meadow, about 30 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS104123  Hypericum anagalloides Lowell Ahart 2003-7-6 10350 Yuba In a meadow, e of the power line, ca 50 yd nw of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  JEPS113686  Hypericum anagalloides Lowell Ahart 2007-8-7 14407 Yuba Hampshire Creek Meadow, about 30 yards east of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  JEPS98496  Hypericum anagalloides Lowell Ahart 2000-6-11 8462 Yuba 6 mi (air) S of Smartville (sides of a deep wash, a N branch of Dry Creek, 2 mi N of int. of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  SEINET13710865  Hypericum anagalloides Lowell William Ahart, Lowell William Ahart 2003-1 10350 Yuba 5 Mi. N of Dobbins (39 Deg 26'11.7"N, 121 Deg 12'07.3'W) 2746 Ft. 837 Comment
  SEINET3450954  Hypericum anagalloides Unknown 2003-7-6 10350 Yuba Dobbins, Dobbins, about 5 air miles north, east of the power line, about 50 yards west of Fountain Hill Road 830 Comment
  CHSC112962  Hypericum concinnum L. P. Janeway 2014-7-2 11434 Yuba Northern High Sierra Nevada. Plumas National Forest; Peterson Ridge Road rounding the southeast-trending ridge between Indian Creek and the un-named creek south of that; 2.4 air-km east of Pike County Peak. 820 Comment
  UC1122091  Hypericum concinnum M. A. Elvin 1933-7-6 40 Yuba 2 1/2 mi. w. Bridgeport; Smartsville Quad. Comment
  CDA36536  Hypericum concinnum Crane 42197 Yuba Marysville 0 Comment
  CHSC97746  Hypericum perforatum Lowell Ahart 2007-11-8 14583 Yuba On the south edge of a small island, on the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 91 Comment
  JEPS104350  Hypericum perforatum Lowell Ahart 2003-7-6 10352 Yuba Near a meadow, e of the power line, ca 50 yd w of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  UCR231336  Hypericum perforatum George K. Helmkamp, E. A. Helmkamp 2011-5-6 17181 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.3 mile north of the junction with Hokan Lane, vicinity of Camp Far West Reservoir 105 Comment
  CAS-BOT-BC401215  Hypericum perforatum Lowell Ahart 1979-6-25 s.n. Yuba 2 miles east of Challenge 700 Comment
  SEINET3441880  Hypericum scouleri subsp. scouleri Unknown 2003-7-6 10351 Yuba Dobbins, Dobbins, about 5 air miles north, east of the power line, about 50 yards west of Fountain Hill Road 830 Comment
  CHSC108203  Hypochaeris glabra Lowell Ahart 2011-6-7 17378 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  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
  UCD133397  Hypochaeris glabra Barbara Yungert 1974-4-19 68 Yuba west of road, SC-14 project area, Sierra Foothill Field Station. 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-BC133615  Iris hartwegii Peter H. Raven 1953-5-9 5471 Yuba 1 mile from Brownsville on road to Challenge Comment
  CAS-BOT-BC133617  Iris hartwegii Mrs. Martin Goerges 1953-6-24 s.n. Yuba Lake Vera, North Fork, Yuba River 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
  UCD138742  Iris hartwegii R. O. Hanes 1991-5-21 13 Yuba Hornswoggle Ck area. Tahoe Forest. 682 Comment
  CHSC112858  Iris hartwegii subsp. hartwegii L. P. Janeway 2014-4-24 11236 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  JEPS121746  Iris hartwegii subsp. hartwegii L. P. Janeway 2014-4-24 11236 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. Comment
  SEINET1908652  Iris hartwegii subsp. hartwegii G. K. Helmkamp, E. A. Helmkamp 2008-1 13492 Yuba Foothills, northern Sierra Nevada Mountains: Camptonville, at the junction of Henness Pass Road and CA-49. 823 Comment
  UC571183  Iris macrosiphon Herbert L. Mason 1927-5-11 3724 Yuba near Dobbins 457 Comment
  SJSU9895  Iris tenuissima J. B. Willis Jr. 1969-4-19 42 Yuba Marysville Rd, 1 mi W of Dobbins Comment
  JEPS95311  Isoetes nuttallii Lowell Ahart 1994-6-27 7372 Yuba 4 mi NE of Strawberry Valley (center of Schwartz Meadow, E side of La Porte Road) 1219 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
  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
  CAS-BOT-BC69840  Isoetes orcuttii Gordon H. True; J. T. Howell 1967-6-13 3551 Yuba Ca. 5 mi. e. of Wheatland and 1 mi. n. of Bear River. 54 Comment
  CHSC78207  Isolepis cernua Lowell Ahart 2000-5-25 8399 Yuba On the sides of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  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
  CHSC84141  Isolepis setacea Lowell Ahart 2003-7-2 10348 Yuba In a small stream, on the east side of Fountain Hill Road, about 3 miles south of Oregon Hill Road, about 1/2 mile (air) north of Fountain House Hill, about 3 miles (air) northeast of Dobbins. 841 Comment
  CHSC84465  Isolepis setacea Lowell Ahart 2003-7-6 10363 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
  SD130997  Isolepis setacea Lowell Ahart 1980-6-19 2394 Yuba 3 miles southeast of Challenge 800 Comment
  SEINET3441876  Isolepis setacea Unknown 2003-7-6 10363 Yuba Dobbins, Dobbins, about 5 air miles north, east of the power line, about 60 yards northwest of Fountain Hill Road 830 Comment
  CAS-BOT-BC112654  Isolepis setacea Beecher Crampton 1966-6-14 7752 Yuba 1 mile east of Brownsville, La Porte Road. 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
  JEPS113472  Jensia rammii Lowell Ahart 2007-5-12 13772 Yuba Dry bare red soil, bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UCD37135  Jensia rammii Beecher Crampton 1957-6-5 4154 Yuba 1.3 miles east of Oregon House Store. Comment
  SBBG8607  Jensia rammii H. and M. Dearing 1939-5-6 3287 Yuba 8 mi SW of Challenge 762 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
  JEPS103550  Juncus acuminatus Lowell Ahart 2002-10-9 9955 Yuba Along a small stream, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS113874  Juncus acuminatus Lowell Ahart 2007-6-22 14215 Yuba Sides of a new ditch, near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC47519  Juncus articulatus Lowell Ahart 1980-6-19 2395 Yuba Along Peterson Ridge Road, about 3 miles south-east of Challenge. 762 Comment
  CHSC84166  Juncus articulatus Lowell Ahart 2003-7-2 10345 Yuba In a small stream, on the west side of Fountain Hill Road, about 3 miles south of Oregon Hill Road, about 1/2 mile (air) north of Fountain House Hill, about 3 miles (air) northeast of Dobbins. 841 Comment
  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
  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
  CHSC47537  Juncus bufonius var. occidentalis Lowell Ahart 1979-6-3 1917 Yuba On the bottom and sides of a small man made depression in a logged over area, about 1 mile south of Challenge. 670 Comment
  SEINET7067144  Juncus bufonius var. occidentalis A. G. Vestal 1947-4-30 s.n. Yuba About 5.1 miles west of Smartville. Coordinate datum: NAD27. UTM Zone 10, 641421mE, 4340515mN. Comment
  CDA2698  Juncus capitatus J. T. Howell, G. H. True 1967-6-13 3574 Yuba Camp Far West Reservoir, on Bear River east of Wheatland. Comment
  CHSC47544  Juncus covillei Lowell Ahart 1980-8-12 2546 Yuba On a large gravel bar that is formed from a debris dam across Slate Creek, a little west of where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  HSC98444  Juncus covillei L. Ahart, L. P. Janeway, L. Hanson 2007-7-13 14294 Yuba S side of Hampshire Creek, E of dam, 100 yds. E of Forest Rd., 1 mi. E of Clipper Mills 1021 Comment
  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
  CHSC115469  Juncus cyperoides L. P. Janeway; Emily Meigs Doe 2015-4-29 11669 Yuba Northern High Sierra Nevada. Plumas National Forest; along Oroville-Wyandotte Canal at the eastern-most end of Road 19N32; about 0.8 km east of Weiss Hill Road and Forbestown Road. 838 Comment
  CHSC83440  Juncus cyperoides Virginia Dains 1996-7-30 Yuba East of forest road 20N25 in a man-made meadow/marsh. One location along the easternmost channel of Hampshire Creek. 1021 Comment
  JEPS113876  Juncus cyperoides Lowell Ahart 2007-8-7 14420 Yuba Along a small stream, about 100 yards northwest of the dirt road, north part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills 1021 Comment
  SEINET6329237  Juncus cyperoides B. L. Wilson, L. Ahart, L. Janeway, P. F. Zika 2011-8-5 16772 Yuba Plumas National Forest, Sacramento Box Road, a closed road giving access to Hampshire Meadow, at the point where the stream cuts the road 1034 Comment
  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
  CHSC97076  Juncus dubius Lowell Ahart 2007-8-7 14423 Yuba In shallow water, open meadow, on the southeast part of Hampshire Creek Meadow, about 50 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS104082  Juncus dubius Lowell Ahart 2003-7-2 10346 Yuba In a small stream, on the w side of Fountain Hill Rd, ca 3 mi south of Oregon Hill Rd, ca 1/2 mi (air) n of Fountain House Hill, ca 3 mi (air) ne of Dobbins. 841 Comment
  SEINET3450944  Juncus dubius Unknown 2003-7-2 10346 Yuba Dobbins, Dobbins, about 3 air miles northeast, about 0.5 miles north of Fountain Hill Road, about 3 miles south of Oregon Hill Road, west side of Fountain Hill road 840 Comment
  UCD80385  Juncus effusus CNPS SN Foothill Team 2005-7-5 SNNR 0473 a Yuba CDFG Daugherty Hill Wildlife Area. 280 Comment
  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
  JEPS104258  Juncus effusus subsp. pacificus Lowell Ahart 2003-7-2 10347 Yuba In a small stream, on the w side of Fountain Hill Rd, ca 3 mi south of Oregon Hill Rd, ca 1/2 mi (air) n of Fountain House Hill, ca 3 mi (air) ne of Dobbins. 841 Comment
  JEPS113769  Juncus effusus subsp. pacificus Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14301 Yuba About 30 yards east of a poor dirt road, about 1 1/2 miles (air) northeast of Clipper Mills 1045 Comment
  CDA39199  Juncus effusus var. exiguus L. Ahart 2002-10-8 9947 Yuba On the edge of a small 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. Comment
  CHSC47551  Juncus ensifolius Lowell Ahart 1969-7-15 30 Yuba About 10 miles south of La Porte. 914 Comment
  CHSC69458  Juncus ensifolius Lowell Ahart 1997-8-30 7878 Yuba On the west side of the dirt road, near a road culvert, about one mile (air) south of Woodleaf. 944 Comment
  JEPS94353  Juncus ensifolius Lowell Ahart 1997-8-30 7878 Yuba about 1 air mi s of Woodleaf (on w side of the dirt road, near a road culvert) 944 Comment
  CHSC47548  Juncus exiguus Lowell Ahart 1981-6-13 2857 Yuba On the bottom of a small stream, about 1/2 mile west of McGinn Hill, east of Loma Rica. 274 Comment
  UCD141542  Juncus hemiendytus L. Ahart 1980-5-25 2352 Yuba on the north side of New York Flat Road, west of the Cemetery, north of Brownsville. 731 Comment
  CHSC84239  Juncus howellii Lowell Ahart 2003-7-6 10364 Yuba In a meadow, east of the power line, about 60 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  CHSC97111  Juncus laccatus Lowell Ahart 2007-8-7 14414 Yuba On the east side of a small pond, on the west side of the dirt road, Hampshire Creek Meadow, about 5 yards west of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  CHSC107309  Juncus occidentalis L. P. Janeway 2011-7-5 10493 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 480 m northeast of Marysville Road. Near top of the saddle, springtime wet meadow, along shallow depression where a little water pools while draining from meadow. 756 Comment
  CHSC84399  Juncus occidentalis Lowell Ahart 2003-7-6 10365 Yuba Near a meadow, east of the power line, about 30 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  JEPS104245  Juncus occidentalis Lowell Ahart 2003-7-6 10365 Yuba Near a meadow, e of the power line, ca 30 yd w of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  CHSC63198  Juncus orthophyllus Lowell Ahart 1994-6-27 7378 Yuba Near the northeast side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles northeast of Strawberry Valley. 1219 Comment
  CHSC78332  Juncus orthophyllus Lowell Ahart 2000-6-23 8504 Yuba On the west side of a dirt road, about 100 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  JEPS95407  Juncus orthophyllus Lowell Ahart 1994-6-27 7378 Yuba 4 mi NE of Strawberry Valley (near NE side of Schwartz Meadow, E side of La Porte Road) 1219 Comment
  JEPS98334  Juncus orthophyllus Lowell Ahart 2000-6-23 8504 Yuba 3 mi NE of Strawberry Valley (W side of a dirt road, 100 yds E of the meadow along La Porte Road, 100 yds N of Scales Road) 1219 Comment
  CHSC47571  Juncus tenuis Lowell Ahart 1980-8-12 2538 Yuba Slate Creek, west of where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  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
  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
  SBBG121294  Juncus tenuis L. Ahart 2007-8-7 14428 Yuba S of Hampshire Crk Meadow, ca. 1 mi E of Clipper Mills 1021 Comment
  CHSC106615  Juncus usitatus Peter F. Zika 2010-6-22 24975 Yuba Northern Sierra Nevada Foothills (n SNF); Spring Valley Road NE of Browns Valley Ridge. 90 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
  CHSC97138  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
  CAS-BOT-BC236790  Keckiella breviflora David D. Keck 1930-7-25 984 Yuba Bullards Bar Reservoir, Sierra Nevada 457 Comment
  POM195081  Keckiella breviflora subsp. glabrisepala D. D. Keck 1930-7-25 984 Yuba Bullards Bar Reservoir. 457 Comment
  UCD123765  Keckiella breviflora var. glabrisepala Barbara Yungert 1974-5-13 149 Yuba along dirt road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UC2016501  Keckiella lemmonii Richard Olmstead 1986-6-14 845 Yuba Entrance to the Oregon Creek Picnic Ground. Jct of Oregon Cr. with middle fork Yuba River. Comment
  CDA14570  Kelloggia galioides G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3049 Yuba La Porte _ Quincy Road 3.6 miles northeast of Strawberry Valley at the Plumas county line. 1280 Comment
  CHSC113175  Kickxia elatine Lowell Ahart 2013-11-30 19300 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  JEPS121313  Kickxia elatine Lowell Ahart 2013-11-30 19300 Yuba On the sides of a deep wash (Willow Glen Creek), NW of Dry Creek, below the high water line of Collins Lake, about 100 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  CAS-BOT-BC180848  Kochia scoparia Lemmel Jr. Osborne 1948-9-5 s.n. Yuba Near Marysville 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
  CHSC112372  Lactuca virosa L. P. Janeway 2014-6-25 11420 Yuba Northern High Sierra Nevada. Plumas National Forest; Along Oregon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km northwest of Summit Hill; slope above Burnt Bridge Creek. 792 Comment
  CHSC112859  Lactuca virosa L. P. Janeway 2014-6-26 11425 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  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
  CAS-BOT-BC341289  Lagophylla glandulosa Alice Eastwood 1921-5-22 10533 Yuba Los Vergils Comment
  CAS-BOT-BC341290  Lagophylla glandulosa Junea Kelley 1920-10-31 s.n. Yuba Los Vergels [Vergils] Comment
  CAS-BOT-BC337963  Lasthenia californica Irene Creps 1955-4-9 18 Yuba Five miles Northeast of Wheatland Comment
  UCD133692  Lasthenia californica subsp. californica Barbara Yungert 1974-4-16 55 Yuba southern slope; along road 6, K 1-11 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC352767  Lasthenia fremontii Gordon H. True 1963-4-17 1179 Yuba About 10 miles E of Marysville, on Marysville-Grass Valley Hwy 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
  CAS-BOT-BC355510  Lasthenia glaberrima Carl B. Wolf 1937-5-18 8735 Yuba Sacramento Valley, 2 mi. so. of Marysville. 18 Comment
  UCR47660  Lasthenia glaberrima C. B. Wolf 1937-5-18 08735 Yuba SacramenoValley, 2 mi south of Marysville 18 Comment
  UCR169010  Lasthenia gracilis David Charlton 2005-5-16 8009 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  CHSC112856  Lathyrus brownii L. P. Janeway 2014-4-22 11230 Yuba Northern High Sierra Nevada. Plumas National Forest; in shallow bowl at head of Little Oregon Creek; 0.5 km southwest of Oregon Hill Road; 3.4 air-km south-southeast of Challenge. 823 Comment
  CHSC78145  Lathyrus hirsutus Lowell Ahart 2000-5-25 8394 Yuba On dry soil of open pasture field, near a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  JEPS98596  Lathyrus hirsutus Lowell Ahart 2000-5-25 8394 Yuba 6 air miles S of Smartville (field near a N branch of Dry Dreek, 2 mi N of intersection of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  CDA4179  Lathyrus hirsutus L. Ahart 2000-5-25 8394 Yuba 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. Comment
  UCD106387  Lathyrus nevadensis Kathleen Keliher 1975-5-15 112 Yuba Along Peterson Road, 1 mile from Oregon House Road. Comment
  SBBG3370  Lathyrus sulphureus H. and M. Dearing 1939-5-8 3298 Yuba N of Bullards Bar Dam on Yuba River Comment
  SEINET956200  Lathyrus sulphureus Carl B. Wolf 1937-1 8636 Yuba Sierra nevada foothills, 2 7/10 mi. Below Stanfield Hill on Road to Browns Valley. 183 Comment
  UCR234193  Layia chrysanthemoides George K. Helmkamp, E. A. Helmkamp 2011-4-10 17165 Yuba Sacramento Valley, along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland 44 Comment
  CAS-BOT-BC321710  Layia fremontii Gordon H. True 1966-4-7 2679 Yuba About 5 miles E of Wheatland and 1 mile N of Bear River. 54 Comment
  JEPS124300  Leersia oryzoides Lowell Ahart 2015-11-19 20682 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CDA32426  Leersia oryzoides L. Ahart 1999-9-17 8239 Yuba South of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer s rice dryer, about 5 miles (air) northeast of Marysville. Comment
  UCD103532  Legenere limosa Ellen Tatum Pimentel 2010-5-13 s.n. Yuba On Beale Air Force Base, north of North Beale Road (~0.9 mile as the crow flies) and west of Reed's Creek, in what appears to be an old ox-bow of Reed's Creek. CNDDB occurrence #51. 24 Comment
  JEPS121301  Leontodon saxatilis Lowell Ahart 2013-11-30 19304 Yuba On the SW side of a deep wash (Willow Glen Creek), NW of Dry Creek, below the high water line of Collins Lake, about 100 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  CHSC107127  Leontodon saxatilis subsp. longirostris L. P. Janeway 2011-6-2 10358 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  CHSC108190  Leontodon saxatilis subsp. longirostris Lowell Ahart 2011-6-7 17379 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC113183  Leontodon saxatilis subsp. longirostris Lowell Ahart 2013-11-30 19304 Yuba On the southwest side of a deep wash (Willow Glen Creek), west 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
  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
  CHSC97691  Leontodon saxatilis subsp. longirostris Lowell Ahart 2007-11-1 14532 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  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
  UC1124465  Lepechinia calycina M. A. Elvin 1933-7-1 36 Yuba 1 1/2 mi S of Virginia Ranch 457 Comment
  CAS-BOT-BC88805  Lepidium campestre Lowell Ahart 1979-6-3 s.n. Yuba 1 mile south of Challenge. 550 Comment
  CHSC43652  Lepidium campestre Lowell Ahart 1979-6-3 1922 Yuba About 1 mile south of Challenge. 640 Comment
  CHSC97242  Leptochloa fusca subsp. fascicularis Lowell Ahart 2007-6-22 14218 Yuba Bottom of a new ditch, near a new road pad, about 350 yards west of the power tower, about 13 miles (air) northeast of Marysville. 28 Comment
  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
  UCD118636  Leptosiphon bicolor Barbara Yungert 1974-4-12 26 Yuba north of Yuba River, F-2 project area, Sierra 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
  UCD77822  Lessingia nana Robert E. Preston 2001-7-30 1753 Yuba Beale Air Force Base, in open area at north end of taxiways, 39 Comment
  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
  UCR263565  Lessingia nemaclada Lowell Ahart 2002-10-10 9979 Yuba Sierra Nevada Mtns., E of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, c. 2 miles (air) N of Bridgeport, c. 18 miles N of Highway 20 166 Comment
  SEINET11448039 Image available Lessingia virgata B. Crampton 1974-10-11 9094 Yuba 3 miles southwest of Brown's Valley along Hwy 20 46 Comment
  UCD33715  Lessingia virgata Beecher Crampton 1972-6-20 8816 Yuba ca. 3 miles S.W. of Brown's Valley. Comment
  UCD33887  Lessingia virgata Beecher Crampton 1974-10-11 9094 Yuba 3 miles S.W. of Brown's Valley along Hwy. 20. Comment
  CHSC110968  Leucanthemum vulgare L. P. Janeway 2013-8-29 11199 Yuba Northern High Sierra Nevada. Plumas National Forest; shady logging-landing-flat along little-used dirt road (20N03) along west side of Rose Ranch. 1314 Comment
  UC1131555  Leymus cinereus F. W. Embree 1934-4-30 Yuba 4 mi ene Marysville B.M.; Marysville Quadrangle Comment
  RSA129554  Leymus triticoides F. W. Embree 1934-4-30 47 Yuba 4 miles ENE. of Marysville B.M 23 Comment
  CAS-BOT-BC130527  Lilium Volney Rattan s.n. Yuba Little Fellow Comment
  CAS-BOT-BC130620  Lilium humboldtii A. M. Vollmer; L. Beane 1951-7-1 187 Yuba Brownsville Comment
  CAS-BOT-BC130621  Lilium humboldtii A. M. Vollmer; L. Beane 1951-7-1 187 Yuba Brownsville Comment
  CAS-BOT-BC130623  Lilium humboldtii Albert Vollmer 1949-7-6 13 -E Yuba 1 mile from Challenge on Challenge-Camptonville Road Comment
  JEPS125980  Lilium humboldtii subsp. humboldtii D. W. Taylor 2001-6-18 17784 Yuba Near Woodleaf, along the LaPorte road from the Butte County line to about 1 mile SW, scattered growing along road shoulder for a distance of 1/2 mile. Comment
  CAS-BOT-BC130868  Lilium pardalinum Volney Rattan s.n. Yuba unspecified Comment
  UCD85028  Limnanthes alba Dena Grossenbacher; Joel Smith 2009-5-10 987 Yuba Along the west side of Rice Crossing Road, 0.2 miles south of Marysville Road in Oregon House. Private property. 463 Comment
  POM311140  Limnanthes alba Lincoln Constance 1949-4-29 s.n. Yuba Oregon House, 2 miles W. of Dobbins. 457 Comment
  CHSC97448  Limnanthes alba subsp. alba Lowell Ahart 2007-5-14 13866 Yuba Damp bare red soil, bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UC794374  Limnanthes alba subsp. alba Lincoln Constance 1949-4-29 3280 Yuba 2 mi w Dobbins; Oregon House 457 Comment
  SEINET6670288  Limnanthes alba var. alba L. Constance 1949-4-29 3280 Yuba Oregon House, 2 miles W of Dobbins. 457 Comment
  SJSU10806  Limnanthes douglasii subsp. rosea L. J. Ericksen 1955-4-17 118 Yuba 2 mi S of Marysville Comment
  SJSU10807  Limnanthes douglasii subsp. rosea J. B. Willis Jr. 1969-4-19 46 Yuba 5 mi E of Linda Comment
  CHSC47690  Limnophila X ludoviciana Lowell Ahart 1977-9-25 1593 Yuba In a rice field on the Sam Shintaffer Farm, about 2 miles north-east of Marysville. 30 Comment
  UC718540  Linanthus filipes Carl B. Wolf 1937-5-13 Yuba 1.2 mi below Stanfield Hill (on road to Browns Valley); Sierra Nevada Foothills 274 Comment
  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
  CHSC116035  Lindernia dubia var. anagallidea Lowell Ahart 2015-11-19 20681 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
  CHSC69433  Lindernia dubia var. anagallidea Lowell Ahart 1997-8-13 7860 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
  JEPS124261  Lindernia dubia var. anagallidea Lowell Ahart 2015-11-19 20681 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  JEPS95147  Lindernia dubia var. anagallidea Lowell Ahart 1997-8-13 7860 Yuba about 2 1/4 air mi e of Borwn's Valley (on s side of Scott Forbes Road, 1/4 mi e of intersection of Scott Forbes Road and Peoria Road, just e of Gray Drive) 91 Comment
  RSA0012080  Linum bienne George K. Helmkamp, E. A. Helmkamp 2011-5-6 17208 Yuba junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg ) of Wheatland. 56 Comment
  CDA14562  Lithocarpus densiflorus var. densiflorus G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3039 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  SEINET9330134  Lithocarpus densiflorus var. densiflorus Unknown 1981-6-22 3039 Yuba Oregon Hill Road, 0.1 mi N of Marysville Road, SW of Bullards Bar Dam. J.T. Howell #54076. Comment
  CAS-BOT-BC36547  Lithocarpus densiflorus var. echinoides John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54086 Yuba 3.6 miles northeast of Strawberry Valley on La Porte-Quincy road 1280 Comment
  CHSC11374  Lithocarpus densiflorus var. echinoides Lowell Ahart 1966-8-12 Yuba Near Challenge. 609 Comment
  UCD81505  Lithophragma affine Christopher Michael Bronny 2009-4-1 17 Yuba Oat Hills' area of Sierra Nevada foothills. 174 Comment
  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
  RSA716504  Lithophragma bolanderi L. Ahart 2005-3-11 11612 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
  CAS-BOT-BC430983  Lithophragma bolanderi Junea Kelley 1920-4-24 s.n. Yuba Los Vergils Comment
  UCD102728  Lithophragma heterophyllum Kathleen Keliher 1975-4-6 55 Yuba Below Englebright Reservoir, Sierra Foothill Field Station. 152 Comment
  CAS-BOT-BC325968  Lithospermum californicum Lowell Ahart 1979-6-25 s.n. Yuba 2 miles E of Challenge. 700 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
  CAS-BOT-BC342375  Logfia gallica Alice Eastwood 1921-5-22 10534 Yuba Los Vergils 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
  UCD66188  Lolium multiflorum Barbara Yungert 1974-5-1 G- 3 Yuba West of road near SC-12 fence line, SC-14 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC269071  Lolium perenne Lowell Ahart 1981-6-13 2842 Yuba Along new gravel road, NE side of McGinn Hill, east of Loma Rica 300 Comment
  CDA2249  Lolium temulentum T. C. Fuller 1971-6-13 19888 Yuba Sierra Nevada; East shore of Lake Francis, Lake Francis Road, 1 miles southeast of Dobbins. Comment
  CHSC97664  Lomatium caruifolium var. denticulatum Lowell Ahart 2007-5-14 13857 Yuba In the center of a dirt road, 60 yards north of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville. 29 Comment
  CHSC42095  Lomatium macrocarpum Lowell Ahart 1986-5-20 5276 Yuba Along Abernathy Road, about 2 miles west of Woodleaf. 914 Comment
  RSA22243  Lomatium marginatum L. S. Rose 1939-6-6 39223 Yuba Brownsville 686 Comment
  JEPS14509  Lomatium nudicaule Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1956-4-19 5620 Yuba 0.5 mi. n. Dobbins Ranger Station (CA State Dept. of Forestry) (along rd. from Oregon House to Dobbins) 548 Comment
  CHSC59490  Lomatium utriculatum H. E. Mac Lennan 1992-4-15 19 Yuba 20 air miles se of Oroville. 518 Comment
  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
  CHSC116217  Lonicera hispidula Lowell Ahart; Leigh Johnson 2015-6-10 20225 Yuba On the southwest side of the road just before the bridge across New York Flat Creek, along New York Flat Road, about 1/4 mile northwest of La Porte Road. 614 Comment
  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
  UCD137351  Lonicera interrupta Barbara Yungert 1974-5-23 180 Yuba west of road, SC-14 project area, Sierra Foothill Field Station. Comment
  UCD23260  Lonicera interrupta W. R. Powell 1968-5-24 1551 Yuba 5 miles SSE of Challenge, 3/4 miles south of Greenville. 640 Comment
  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
  UCR169020  Lotus micranthus David Charlton 2005-5-16 8010 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  JEPS126011  Lotus oblongifolius var. oblongifolius D. W. Taylor 2001-6-18 17788 Yuba Meadow along Forest Road 35 about 2 road miles SW of Union Hill. Comment
  UC144152  Lotus wrangelianus A. A. Heller 1905-3-21 7554 Yuba Marysville Comment
Read comments Apr 27 2016
  SEINET7042627  Lotus wrangelianus A. G. Vestal 1963-5-7 s.n. Yuba Ca. 3.5 miles north of Wheatland. Camp Far West quadrangle UTM Zone 10, 640908mE, 4323324mN. Comment
  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
  CHSC116313  Ludwigia palustris Lowell Ahart 2015-11-19 20672 Yuba 100 yards or more north of the spillway area, below the high water line, west side of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  CHSC83042  Ludwigia palustris Lowell Ahart 2002-10-9 9969 Yuba On the south bank of Lost Creek, below the high water line of Sly Creek Reservoir, about 200 yards southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  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
  RSA647528  Lupinus Hobart Onstod 1946-3-26 s.n. Yuba South Marysville Comment
  UC710391  Lupinus albifrons C. P. Smith 1946-5-2 46257 Yuba Browns Valley Road 7.1 mi sw Brownsville Comment
  UC710392  Lupinus albifrons C. P. Smith 1946-5-2 46261 Yuba Browns Valley Road 10 mi sw Brownsville Comment
  UCD105997  Lupinus albifrons Barbara Yungert 1974-5-21 169 Yuba north side of Yuba River, Sierra Foothill Field Station. Comment
  CAS-BOT-BC196029  Lupinus albifrons var. albifrons Saichi Kawahara 1968-4-13 279 Yuba Highway 20, at north bank of Yuba River, Park's Bar 91 Comment
  CAS-BOT-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-BC196031  Lupinus albifrons var. albifrons Charles Piper Smith 1946-5-2 46261 Yuba Brownsville, 10 miles southwest on Browns Valley Road Comment
  CAS-BOT-BC196033  Lupinus albifrons var. albifrons Charles Piper Smith 1946-5-2 46252 Yuba Smartville, 0.3 miles east on Highway 20 Comment
  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
  CAS-BOT-BC196317  Lupinus albifrons var. flumineus Charles Piper Smith 1948-4-27 48173 Yuba Junction Dobbins & Browns Valley-Brownsville roads. Stanfield, 2.5 miles southwest Comment
  UCD106422  Lupinus andersonii W. R. Powell 1968-5-15 1500 Yuba on Fountain House Road, 2 miles NE of Dobbins. 792 Comment
  CHSC108213  Lupinus benthamii Lowell Ahart 2011-6-7 17395 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS118298  Lupinus benthamii Lowell Ahart 2011-6-7 17395 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCR118922  Lupinus benthamii Beecher Crampton 1967-5-17 7939 Yuba Central Sierra Nevada foothills, 5 Miles east of Brown's Valley, Sierra foothill range field station. 366 Comment
  SBBG29027  Lupinus benthamii B. Crampton 1967-5-17 Yuba 5 mi E of Brown's Valley Comment
  SEINET10970218  Lupinus benthamii Charles Piper Smith 1948-4-27 Smith 48175 Yuba Junction dobbins and browns valley-brownsville roads, stanfield hill, 0.5 mile Sw Comment
  JEPS107408  Lupinus benthamii var. opimus Lowell Ahart 2005-3-11 11611 Yuba S steep slope of large rock outcrop, W of poor dirt road, ca. 1/2 mi W of Marysville Rd, ca. 1/2 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/2 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 395 Comment
  UC710384  Lupinus bicolor C. P. Smith 1946-5-2 46250 Yuba 3 mi se Hammonton Road Smartville; Smartville - 3 mi se Hammonton Road Comment
  UC710388  Lupinus bicolor C. P. Smith 1946-5-2 46249 Yuba 3 mi se Hammonton Road Smartville; Smartville - 3 mi se Hammonton Road Comment
  UC710390  Lupinus bicolor C. P. Smith 1946-5-1 46244 Yuba 1.2 mi n Hiway 99e Wheatland; Wheatland - 1.2 mi n Hiway 99e Comment
  UCD35789  Lupinus bicolor Beecher Crampton 1962-4-24 6261 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCD39006  Lupinus bicolor Beecher Crampton 1962-4-17 6173 Yuba Ca. 2 miles south of Marysville. Island Road and State Hwy. 24. 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
  UCD107335  Lupinus bicolor Barbara Yungert 1974-4-16 50 Yuba Kock Livestock, Sierra Foothill Field Station. Comment
  UCD23428  Lupinus densiflorus Gordon Murray 1977-5-15 7 Yuba Yellow irregular flowers. Between rocks, creekside, shady slope. Jed Smith Creek off Scott Forbes Rd. in Browns Valley. 22 miles E of Marysville on Hwy 20. 304 Comment
  UCD108127  Lupinus latifolius Kathleen Keliher 1975-5-14 104 Yuba top of hill near Road 4, near Meathook area, L 1-21 project area, Sierra Foothill Field Station. 243 Comment
  UCR169082  Lupinus microcarpus David Charlton 2005-5-16 8000 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  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
  UC710385  Lupinus nanus C. P. Smith 1946-5-2 46265 Yuba Dobbins Road 2.3 mi w Oregon House Comment
  UC710387  Lupinus nanus C. P. Smith 1946-5-2 46255 Yuba 1.4 mi e Browns Valley Comment
  UC710393  Lupinus nanus C. P. Smith 1946-4-25 46220 Yuba Honcut Road 2.2 mi n Loma Rica; n <of> Loma Rica Comment
  UC710407  Lupinus nanus C. P. Smith 1946-5-2 46253 Yuba Hiway 20, 0.3 mi w Smartville; w of Smartville Comment
  UC710408  Lupinus nanus C. P. Smith 1946-5-2 46246 Yuba Hammonton Road 1.7 mi e South Marysville; e of South Marysville Comment
  UCR196819  Lupinus nanus George K. Helmkamp, E. A. Helmkamp 2008-5-20 13463 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  UCD109265  Lupinus nanus Barbara Yungert 1974-4-30 97 Yuba south of county road, below H-9 project area, Sierra Foothill Field Station. Comment
  SEINET10450737  Lupinus pachylobus Smith 1948-4-27 Smith 48180 Yuba Jct. Dobbins and browns valley brownsville roads. Stanfield hill, 3.4 mi ne. Pine forest. Scrub oak undergrowth. Red soil. Comment
  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
  SEINET10490993  Lupinus vallicola subsp. vallicola Smith 1948-4-27 Smith 48184 Yuba Jct dobbins and browns valley--brownsville roads. Stanfield hill, 3.4 mi ne. Comment
  CHSC106354  Luzula cascadensis Lowell Ahart 2010-7-27 16914 Yuba On the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. 1219 Comment
  JEPS117663  Luzula cascadensis Lowell Ahart 2010-7-27 16914 Yuba On the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam 1219 Comment
  CDA39217  Luzula comosa G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3054 Yuba 3.6 miles northeast of Strawberry Valley on La Porta - Quincy Road, at Plumas County Line. Comment
  UCD142082  Luzula comosa Kathleen Keliher 1975-4-13 61 Yuba Sierra Foothill Field Station. Junction of Lower Cook Road and four wheel drive road, K 1-11 project area, Sierra Foothill Field Station. 243 Comment
  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
  CHSC47580  Luzula macrantha Lowell Ahart 1979-6-3 1915 Yuba About 1 mile south of Challenge. 670 Comment
  CHSC59617  Luzula macrantha Kathleen Keliher 1975-4-13 61 Yuba Junction of Lower Cook Road and four wheel drive road, K 1-11 project area, Sierra Foothill Field Station. 243 Comment
  HSC104263  Luzula macrantha P. F. Zika 2010-6-22 24980 Yuba Northern Sierra Nevda Highlands; west side of Challenge Cut-off, 2.5 air km NE of Brownsville 755 Comment
  JEPS118081  Luzula macrantha Lowell Ahart 2011-6-7 17419 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CAS-BOT-BC441309  Luzula macrantha Gordon H. True 1963-5-2 1208 Yuba Sierra Nevada: Oregon Creek at jct. with middle Yuba River, at Freeman's Crossing 457 Comment
  CAS-BOT-BC441310  Luzula macrantha Lowell Ahart 1968-4-21 s.n. Yuba Sierra Nevada: 5 miles SE of Challenge 609 Comment
  JEPS120941  Luzula subsessilis Lowell Ahart 2013-4-23 18567 Yuba Along Costa Creek, about 100 yards E of where the paved road crosses Costa Creek, about 2.5 air miles SE of the Forbestown Store. Comment
  CHSC116111  Lycopus americanus Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20638 Yuba On the bottom of the spillway area at the west side and near the top of Lake Francis Dam, below the high water line of Lake Francis, about 1-1/2 miles south of Dobbins. 512 Comment
  CHSC97134  Lycopus americanus Lowell Ahart 2007-6-30 14237 Yuba Near and west of new road pad, about 250 yards west of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  HSC14222  Lycopus americanus C. B. Wolf 1927-11-5 1439 Yuba Road to Brown's Valley, 8 mi. from Marysville 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
  JEPS124316  Lycopus americanus Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20644 Yuba Below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. 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
  UCD103077  Lythrum hyssopifolia Barbara Yungert 1974-5-30 186 Yuba Near gate in SC-5 project area, Sierra Foothill Field Station. Comment
  UCD111879  Maclura pomifera Barbara Yungert 1974-5-15 163 Yuba Sierra Foothill Field Station. Above Dry Creek near P-2 fence line, P-2 project area. Comment
  UCD134173  Madia citriodora Barbara Yungert 1974-5-1 102 Yuba along irrigation ditch, north of road, SC-14 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC344279  Madia elegans Lowell Ahart 1983-8-10 4274 Yuba Along the Peterson Ridge Road, about 5 miles east of Challenge 1000 Comment
  POM225673  Madia elegans subsp. vernalis D. D. Keck, Palmer Stockwell 1935-5-16 3313 Yuba N edge of Lebec. Comment
  CHSC63238  Madia exigua Lowell Ahart 1994-6-5 7300 Yuba On the south side of Costa Creek, on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  SEINET7072998  Madia exigua A. G. Vestal 1963-5-30 s.n. Yuba Turn-off to Timbuctoo from Route 20 at Yuba River. UTM Zone 10, 643966mE, 4342277mN. Coordinate datum: NAD27). Comment
  CAS-BOT-BC344593  Madia exigua Alice Eastwood 1921-5-22 10574 Yuba Los Vergils Comment
  CAS-BOT-BC343557  Madia gracilis Lowell Ahart 1980-8-12 2551 Yuba Along Slate Creek 1250 Comment
  CHSC110320  Madia gracilis L. P. Janeway 2013-6-7 11137 Yuba Northern High Sierra Nevada. Along Oregon Hill Road just south of Little Oregon Creek. 628 Comment
  CHSC84236  Madia gracilis Lowell Ahart 2003-7-6 10355 Yuba Near a meadow, east of the power line, about 30 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  JEPS104291  Madia gracilis Lowell Ahart 2003-7-6 10355 Yuba Near a meadow, e of the power line, ca 30 yd w of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  JEPS118437  Madia gracilis Lowell Ahart 2011-6-7 17380 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CAS-BOT-BC343560  Madia gracilis David D. Keck 1930-7-25 985 Yuba Between Bullards Bar Reservoir and Camptonville 600 Comment
  CAS-BOT-BC343561  Madia gracilis David D. Keck 1930-7-25 985 Yuba Between Bullards Bar Reservoir and Camptonville 600 Comment
  SBBG128105  Madia gracilis L. Ahart 2011-6-7 17380 Yuba rd margin, ca. 25 yards S of the huge gravel bar along the Yuba River, ca. 150 yards W of the S end of Parks Bar Bridge (Hwy 20), ca. 15 mi (by air) NE of Marysville 66 Comment
  UCD134276  Madia gracilis L. Ahart 1982-7-4 3660 Yuba ca. 1/2 mile east of Brownville, along La Porte Road. 700 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
  CAS-BOT-BC347374  Malacothrix floccifera Lewis S. Rose 1939-6-7 39244 Yuba N. Fork of Feather River, 3 mi. s. of Pulga 609 Comment
  CHSC97488  Malva nicaeensis Lowell Ahart 2007-5-14 13849 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC51224  Marrubium vulgare Lowell Ahart 1981-6-13 2854 Yuba Growing along the edge of a new gravel road, on the west side of McGinn Hill, east of Loma Rica. 304 Comment
  HSC14232  Marrubium vulgare T. F. Newman 1964-2-22 10 Yuba 10 miles N of Marysville on Alt. 40. 5 mi. on Rameriz Rd. Comment
  CHSC113176  Marsilea vestita subsp. vestita Lowell Ahart 2013-11-30 19317 Yuba On the southeast side of Dry Creek, about 30 yards southeast of Willow Glen Creek, below the high water line of Collins Lake, about 30 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  CHSC97749  Marsilea vestita subsp. vestita Lowell Ahart 2007-11-8 14579 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  CAS-BOT-BC422638  Meconella californica Helen McGovern 1928-3-23 s.n. Yuba Smartville Comment
  UCD35775  Medicago arabica Beecher Crampton 1962-4-24 6288 a Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  JEPS95892  Medicago lupulina Lowell Ahart 1999-9-5 8193 Yuba on the disturbed area on the south side of Woodruff Lane; just west of Kimball Lane; about 5 miles (air) northeast of Marysville 24 Comment
  UCD107725  Medicago lupulina Beecher Crampton 1966-6-14 7743 Yuba Yuba County, 1 mile east of Brownsville. 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
  UCD37856  Medicago polymorpha Beecher Crampton 1962-4-24 6260 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  HSC14993  Medicago sativa T. F. Newman 1965-10-9 6554 Yuba Carnes Ranch, 9 mi. N of Marysville on Hwy. 70. Comment
  UCD110817  Melica Christopher Mallek 2008-1 DF1- 13 Yuba Daken Flat. 675 Comment
  CAS-BOT-BC271130  Melica aristata Lowell Ahart 1979-6-25 s.n. Yuba 1 mi. S of Challenge 700 Comment
  CAS-BOT-BC269365  Melica californica Beecher Crampton 1967-5-17 7940 Yuba 5 miles east Brown's Valley, UC - Sierra Foothill Range Field Station Comment
  JEPS118737  Melica californica L. P. Janeway and Melanie Williams, Tim Hanson 2011-6-9 10376 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. French Corral 7.5' quad. Comment
  UCD33242  Melica californica var. nevadensis Beecher Crampton 1967-5-17 7940 Yuba Yuba County, 5 miles east of Brown's Valley, sierra foothill range field station. Comment
  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
  CDA40728  Mentha canadensis L. Ahart 2002-10-9 9968 Yuba On the north bank of Lost Creek, below the high water line of Sly Creek Reservoir, about 100 yards southwest of the Day Camp, Sly Creek Reservoir. Comment
  JEPS103257  Mentha canadensis Lowell Ahart 2002-10-9 9968 Yuba On the north bank of Lost Creek, below the high water line of Sly Creek Reservoir, about 100 yards SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CHSC25505  Mentha spicata L. Ahart 1977-7-31 1504 Yuba One mile s of Challenge. 700 Comment
  SEINET3441879  Mentha spicata Unknown 2003-7-17 10417 Yuba Smartville, Smartville, about 6 air miles south, west side of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road 120 Comment
  UCD81497  Micranthes californica Christopher Michael Bronny 2009-4-1 9 Yuba Oat Hills' area of Sierra Nevada foothills. 146 Comment
  UCD37850  Micropus Beecher Crampton 1962-4-24 6254 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD37864  Micropus Beecher Crampton 1962-4-24 6276 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCR169025  Micropus californicus David Charlton 2005-5-16 8020 B Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  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
  JEPS118294  Micropus californicus var. californicus Lowell Ahart 2011-6-7 17382 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  JEPS94318  Micropus californicus var. californicus Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7723 Yuba about 17 mi ne of Marysville (on bank of the Browns Valley Water Ditch, s of the poor dirt road, s of Dry Creek, about 1 mi e of Scott Forbes Road (Long Bar Road)); Browns Valley Water Ditch 182 Comment
  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-BC348440  Micropus californicus var. californicus L. S. Smith 1932-4-29 2642 Yuba South of Spenceville Road to Sheridan 304 Comment
  CAS-BOT-BC348441  Micropus californicus var. californicus Alice Eastwood 1921-5-22 10534 Yuba Los Vergils Comment
  SEINET7042615  Microseris acuminata A. G. Vestal 1963-5-7 s.n. Yuba Ca 3.5 miles north of Wheatland. Wheatland quadrangle UTM Zone 10, 636544mE, 4323933mN. Comment
  UCR194906  Mimulus aurantiacus George K. Helmkamp, E. A. Helmkamp 2007-5-26 12129 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville 802 Comment
  UCR197049  Mimulus aurantiacus George K. Helmkamp, E. A. Helmkamp 2008-5-20 13473 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  JEPS123934  Mimulus aurantiacus var. grandiflorus Lowell Ahart 2015-4-30 20130 Yuba About 1 1/4 mile (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. Comment
  OBI48845  Mimulus aurantiacus var. grandiflorus Lewis S. Rose 1939-6-7 39242 Yuba N Fork of Feather River, 3 mi S of Pulga 610 Comment
  UC614489  Mimulus aurantiacus var. grandiflorus L. Constance 1938-6-8 2291 Yuba 4 mi nw North San Juan; Sierra Nevada foothills, Middle Fork Yuba River 426 Comment
  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
  CAS-BOT-BC9749  Mimulus discolor George Ledyard Stebbins 1966-5-22 6409 Yuba Near Forbestown 822 Comment
  JEPS107405  Mimulus floribundus 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
  RSA715485  Mimulus floribundus L. Ahart 2005-3-11 11608 Yuba About 0.5 mile W of Marysville Rd. About 0.5 mile N of Parking Area 3. Daugherty Hill Wildlife Area. Donovan Hill Managment Area. About 0.5 mile N of Loma Rica Rd. About 5 miles (air) NE of Loma Rica. 395 Comment
  SEINET7072995  Mimulus guttatus A. G. Vestal 1963-5-30 s.n. Yuba Meadow about 3.9 miles south of Brownsville and 0.3 mile north of Willow Glen Ranch on Willow Glen Road. UTM Zone 10, 647202mE, 4364746mN. Coordinate datum: NAD27). Comment
  UCSB59403  Mimulus kelloggii Thompson, David 1988-3-21 Yuba Between 0.8 and 0.9 mi W of Hwy 49 bridge over Yuba River along Moonshine Road; which starts on the N side of the bridge; T18N, R8E, center of N1/2 NW1/4 S33 440 Comment
  UC886288  Mimulus moniliformis Lewis S. Rose 1939-6-6 39233 Yuba Strawberry Valley 1219 Comment
  CDA14572  Mimulus moschatus G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3051 Yuba La Porte _ Quincy Road 3.6 miles northeast of Strawberry Valley at the Plumas county line. 1280 Comment
  POM161754  Mimulus moschatus R. C. Bacigalupi 1927-7-2 1587 Yuba Highway to Downieville about 8 mi NE of Camptonville. Comment
  UCD122682  Mimulus nasutus Kathleen Keliher 1975-4-16 56 Yuba Below Englebright Dam, Sierra Foothill Field Station. 152 Comment
  CDA24062  Minuartia douglasii D. L. Wilson 1976-5-14 Yuba 4899 Fruitland Road, Loma Rica. 0 Comment
  JEPS100262  Moehringia macrophylla Dean W. Taylor 2001-5-9 17635 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  CHSC81801  Mollugo verticillata Lowell Ahart 2001-11-2 9402 Yuba Camp Far West Reservoir, about 1/4 mile mortheast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  JEPS102556  Mollugo verticillata Lowell Ahart 2001-11-2 9402 Yuba Camp Far West Reservoir, about 1/4 mile mortheast of the dam, about 9 miles (air) SE of Wheatland. 83 Comment
  JEPS121317  Mollugo verticillata Lowell Ahart 2013-11-30 19298 Yuba On the sides of a deep wash (Willow Glen Creek), NW of Dry Creek, below the high water line of Collins Lake, about 100 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  CAS-BOT-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
  CAS-BOT-BC219941  Monardella breweri subsp. lanceolata Lowell Ahart 1983-8-10 4273 Yuba Along the Peterson Ridge Road, about 5 miles east of Challenge 1000 Comment
  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
  CHSC112861  Monardella sheltonii L. P. Janeway 2014-4-26 11426 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  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
  JEPS113286  Montia fontana subsp. chondrosperma Lowell Ahart 2007-4-17 13689 Yuba Bottom of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daughtery Hill Wildlife Area, Donovan Hill Management Area, abouit 5 1/2 miles (air) northwest of Loma Rica 292 Comment
  CAS-BOT-BC260519  Muhlenbergia filiformis Lowell Ahart 1980-8-12 2567 Yuba Along Slate Creek 1250 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
  CHSC97708  Muhlenbergia rigens Lowell Ahart 2007-11-8 14590 Yuba North of a small island, on the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 91 Comment
  UCD32864  Muhlenbergia rigens Beecher Crampton 1964-10-22 7228 Yuba Yuba County, 3 miles east of Browns Valley, dry creek bed. 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
  JEPS103502  Najas Lowell Ahart 2002-10-8 9941 a Yuba In a pond, ca 100 yards N of Long Ravine Road, ca 300 yards SE of the intersection of Camp Far West Road and Long Ravine Road there is a poor gate on the N side of the road, N of Camp Far West Reservoir. 121 Comment
  UCD81504  Nassella pulchra Christopher Michael Bronny 2009-4-1 16 Yuba Oat Hills' area of Sierra Nevada foothills. 140 Comment
  SEINET7072977  Navarretia A. G. Vestal 1963-5-29 s.n. Yuba At 99 East and Beale Road [Presently 99 & Camp Beale Road]. UTM Zone 10, 622422mE, 4331929mN. Coordinate datum: NAD27). Comment
  UC702891  Navarretia eriocephala Lewis S. Rose 1939-6-5 39203 Yuba Smartsville 182 Comment
  JEPS94628  Navarretia filicaulis Lowell Ahart 1997-8-7 7807 Yuba n side of New York Flat Rd. about 1 mi nw La Porte Road (about 1 mi n of Brownsville) 731 Comment
  UC718468  Navarretia filicaulis Carl B. Wolf 1937-6-11 Yuba 1.6 mi nw Stanfield Hill (along a fork of South Honcut Creek, Sierra Nevada foothills); Sierra Nevada 304 Comment
  UCD33664  Navarretia intertexta Beecher Crampton 1971-6-18 8735 Yuba Yuba County, Sierra Foothill Range Field Station, ca. 6.5 miles east of Browns Valley, east of headquarters. Comment
  UCR118919  Navarretia intertexta Beecher Crampton 1957-6-5 4132 Yuba Central Sierra Nevada foothills., 2.6 Miles northeast of Brown's Valley Post Office 366 Comment
  UCR118932  Navarretia intertexta Beecher Crampton 1974-10-11 8735 Yuba Central Sierra Nevada foothills, Sierra Foothill Range Field Station, about 6.5 miles east of Brown's Valley, east of headquarters. 366 Comment
  RSA0062675  Navarretia intertexta Hobart Onstott 1946-5-11 s.n. Yuba Smartville Hills. Comment
  UCD48453  Navarretia intertexta Beecher Crampton 1957-6-5 4132 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  UCD48464  Navarretia intertexta Barbara Yungert 1974-5-23 178 Yuba Along west side of Road 3, below F 1-13 project area near gate, Sierra Foothill Field Station, Yuba County, California. Comment
  CDA40265  Navarretia intertexta subsp. intertexta L. Ahart 2002-6-3 9685 Yuba Along a small drainage, in a large open meadow like area, about 140 yards west of where a few people park along Long Ravine Road, about one mile southeast of the intersection of Long Ravine Road and Camp Far West Road, northeast of Camp Far West Reservoir. Comment
  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
  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
  UCD35858  Navarretia leucocephala Beecher Crampton 1965-5-11 7325 Yuba 2.5 miles southwest of Brown's Valley. Comment
  UCD48528  Navarretia leucocephala Beecher Crampton 1965-5-11 7325 Yuba 2.5 miles s.w. Brown's Valley. Comment
  SEINET3163761  Navarretia propinqua L. S. Rose 1940-5-28 40377 Yuba Browns Valley 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
  UCR118894  Navarretia pubescens Beecher Crampton 1957-6-5 4131 Yuba Central Sierra Nevada foothills., 2.6 Miles northeast of Brown's Valley Post Office 366 Comment
  OBI11305  Navarretia pubescens Lewis S. Rose 1967-6-13 67126 Yuba Camp Far West Reservoir. 7 mi NE of Wheatland 122 Comment
  RSA189444  Navarretia pubescens L. S. Rose 1967-6-13 67126 Yuba Camp Far West Reservoir, 7 mi. NE of Wheatland 122 Comment
  SEINET208622  Navarretia pubescens Lewis S. Rose 1967-6-13 67126 Yuba Cam Far West Reservoir; 7 miles NE of Wheatland. 122 Comment
  UCD38716  Navarretia pubescens Beecher Crampton 1957-6-5 4131 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  UCD48620  Navarretia pubescens Beecher Crampton 1957-6-5 4131 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  UCD118209  Navarretia squarrosa G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12832 Yuba Northern Sierra Nevada Mountains: along Hwy CA-49, 0.5 mile south of Camptonville. 817 Comment
  UCD118213  Navarretia squarrosa G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12832 A Yuba Northern Sierra Nevada Mountains: along Hwy CA-49, 0.5 mile south of Camptonville. 817 Comment
  CHSC97451  Navarretia tagetina Lowell Ahart 2007-5-12 13808 Yuba On dry bare distrubed dark soil, about 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113397  Navarretia tagetina Lowell Ahart 2007-5-12 13808 Yuba On dry bare distrubed dark soil, about 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  RSA750179  Navarretia tagetina J. R. Shevock, Bob Holland 1985-5-6 11126 Yuba Beale Air Force Base E of Marysville. Pools adjacent to runway. 40 Comment
  CHSC96484  Nemophila heterophylla Lowell Ahart 2007-4-17 13687 Yuba East side of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  UC606918  Nemophila heterophylla L. Constance 1938-6-8 2292 Yuba 4 mi nw North San Juan (Middle Fork Yuba River); Sierra Nevada foothills, Middle Fork Yuba River 426 Comment
  UC718060  Nemophila heterophylla Carl B. Wolf 1937-5-13 8638 Yuba on road to Browns Valley 2 7/10 mi below Stanfield Hill; Sierra Nevada foothills, below Stanfield Hill 182 Comment
  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
  UCR197047  Nemophila heterophylla George K. Helmkamp, E. A. Helmkamp 2008-5-20 13471 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  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
  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
  CHSC90478  Nemophila maculata Lowell Ahart 2005-3-11 11622 Yuba On the east side of Los Verjeles Road, about 100 yards north of Loma Rica Road, about 4 miles (air) northeast of Loma Rica. 325 Comment
  SEINET7073621  Nemophila maculata A. G. Vestal 1955-5-21 s.n. Yuba New York Flat. About 2.6 miles south of Forbestown on New York Flat Road. UTM Zone 10, 649035mE, 4272168mN. Coordinate datum: NAD27. Comment
  UCD119911  Nemophila maculata Kathleen Keliher 1975-5-6 95 Yuba 100 feet from duck pond, between two houses, intersection of Frenchtown and New York House Roads. 304 Comment
  UCD110187  Notholithocarpus densiflorus Kathleen Keliher 1975-4-30 77 Yuba Along Oregon Hill Road between Bullards Bar Reservoir and Challenge. Comment
  UCD110220  Notholithocarpus densiflorus var. echinoides G. D. Barbe; J. T. Howell, T. C. Fuller 1981-6-22 3056 Yuba La Porte-Quincy Road 3.6 miles northeast of Strawberry Valley at the Plumas county line. Comment
  CHSC93885  Odontostomum hartwegii L. P. Janeway 2006-5-24 8621 Yuba Northern Sierra Nevada Foothills. East side of Ponderosa Way 1.3 km north of La Porte Road and Brownsville. 686 Comment
  CHSC96416  Odontostomum hartwegii L. P. Janeway 2006-5-24 8633 Yuba Northern Sierra Nevada Foothills. South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. 483 Comment
  JEPS122444  Odontostomum hartwegii L. P. Janeway 2014-5-12 11247 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Quad: French Corral 7.5'. Comment
  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
  RSA21304  Odontostomum hartwegii Carl B. Wolf 1937-5-13 8649 Yuba Sierra Nevada Foothills, 1.6 miles NW of Stanfield Hill, along fork of south Honcut Creek. 305 Comment
  SEINET3557365 Image available Odontostomum hartwegii Lewis S. Rose 1939-6-6 39224 Yuba 2 miles southwest of Brownsville. 594 Comment
  CHSC76110  Oenothera elata subsp. hirsutissima Lowell Ahart 1999-9-5 8194 Yuba On the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 Comment
  HSC96893  Orobanche uniflora L. Ahart 2004-4-27 10765 Yuba About 20 yrds. W of a drainage, about 40 yrds. S of the road, about 1/2 mi. (air) SE of Woodleaf 932 Comment
  SJSU8387  Orobanche uniflora J. B. Willis Jr. 1969-4-27 Yuba by old stage rd to Timbuctoo, NW of Smartville, 0.25 mi from State Hwy 20 Comment
  JEPS106275  Orobanche uniflora var. uniflora Lowell Ahart 2004-4-27 10765 Yuba About 20 yards west of a drainage, about 40 yards south of the road, about 1/2 mile (air) southeast of Woodleaf 931 Comment
  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
  CAS-BOT-BC316983  Packera layneae Lowell Ahart 1980-6-19 2409 Yuba 4 miles east of Challenge 900 Comment
  CHSC44564  Panicum acuminatum Lowell Ahart 1979-6-25 1949 Yuba North of the road, about 2 miles east of Challenge. 640 Comment
  SBBG115624  Panicum acuminatum B. Crampton 1964-10-22 7222 Yuba ca. 3 mi E of Browns Valley Comment
  UCD88528  Panicum acuminatum var. fasciculatum Beecher Crampton 1964-10-22 7222 Yuba 3 miles east of Brown's Valley, Dry Creek. 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
  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
  SEINET10920908  Panicum dichotomiflorum Lowell Ahart 1999-9-5 Ahart 8198 Yuba T16N, R4E, Section not surveyed. On the disturbed area on the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 37 Comment
  CHSC76115  Panicum dichotomiflorum subsp. dichotomiflorum Lowell Ahart 1999-9-5 8198 Yuba On the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 Comment
  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
  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
  CHSC97665  Parentucellia viscosa Lowell Ahart 2007-5-14 13856 Yuba In the center of a dirt road, 60 yards north of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville. 29 Comment
  JEPS98360  Parentucellia viscosa Lowell Ahart 2000-5-25 8396 Yuba 6 air miles S of Smartville (a north branch of Dry Creek, 100 yds W of Smartville Road, about 2 mi N of intersection of Waldo Road and Smartville Road) 146 Comment
  UCR231319  Parentucellia viscosa George K. Helmkamp, E. A. Helmkamp 2011-5-6 17193 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.9 mile west of the junction at Camp Far West Reservoir 65 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
  UCR179305  Paspalum dilatatum George K. Helmkamp, E. A. Helmkamp 2006-10-10 11525 Yuba Northern Sierra Nevada Mountains Foothills, along Calif. Hwy 49 just north of the Nevada County line at the Middle Yuba River bridge 451 Comment
  UCD88732  Paspalum dilatatum Beecher Crampton 1964-10-22 7227 Yuba 3 miles east of Brown's Valley Dry Creek. Comment
  UC1108681  Paspalum distichum H. R. Bennett 1954-8-6 Yuba 4 mi ne Marysville 22 Comment
  JEPS124413  Paspalum urvillei Lowell Ahart 2015-6-16 20246 Yuba About 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. Comment
  UCD88973  Paspalum urvillei Beecher Crampton 1966-6-14 7749 Yuba 1 mile east of Brownsville. 731 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
  RSA516593  Pedicularis aurantiaca R. C. Bacigalupi, G. Thomas Robbins, Francia Chisaki 1956-4-19 5622 Yuba Between Dobbins and Bullard Bar Dam, watershed of North Fork of the Yuba River, 3.1 mi E of Dobbins (or 5.5 miles SW of Bullard Bar Dam). 784 Comment
  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
  UCD123318  Pedicularis densiflora Kathleen Keliher 1975-5-6 88 Yuba near Forbestown Road, ca. 40 meters from La Porte Road, 1 mile east of Woodloaf, ca. 7 meters from disturbed area. 929 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
  JEPS35371  Pellaea andromedifolia Mrs. Rust Yuba Pelton Comment
  CAS-BOT-BC69326  Pellaea brachyptera Lowell Ahart 1978-11-8 s.n. Yuba On north side of the first falls on Gold Run Creek 1300 Comment
  SEINET11713853  Pellaea mucronata E. O. Pelton 1879-1 s.n. Yuba no further locality Comment
  CAS-BOT-BC77200  Pellaea mucronata subsp. mucronata Gordon H. True; J. T. Howell 1969-4-9 4786 Yuba Road between Englebright Dam and Anthony House, ca. 1 mile west of Anthony House. 365 Comment
  CHSC68464  Pellaea mucronata var. californica Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7731 Yuba Along the south side of Dry Creek, north of the poor dirt road, about 1 mile east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 121 Comment
  CHSC68465  Pellaea mucronata var. mucronata Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7733 Yuba Along the south side of Dry Creek, north of the poor dirt road, about 1 mile east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 121 Comment
  CHSC90346  Pellaea mucronata var. mucronata Lowell Ahart 2005-3-11 11613 Yuba Large rock outcrop, south slope, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 395 Comment
  JEPS107679  Pellaea mucronata var. mucronata Lowell Ahart 2005-3-11 11613 Yuba Large rock outcrop, south slope, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica 395 Comment
  JEPS94942  Pellaea mucronata var. mucronata Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7731 Yuba along s side of creek about 1 mi below Scott Forbes Road (Long Bar Road) (n of the poor dirt road, about 17 mi e of Marysville); Dry Creek 121 Comment
  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
  UCD124233  Penstemon heterophyllus Barbara Yungert 1974-5-21 167 Yuba south of rock pile, north side of Yuba River, F-3 project area, Sierra Foothill Field Station. Comment
  SBBG28998  Penstemon laetus D. D. Keck 1932-7-1 1608 Yuba 1 mi SE of Log Cabin Service Station, W of Camptonville 609 Comment
  SEINET11262157  Penstemon laetus var. leptosepalus Karl A. Vincent, Charlotte A. Labbe 1987-8-10 4504 Yuba Sierra Nevada, New York Flat. Along N side of LaPorte Rd (CA E21) at jct New York House (Rd) ca 1.8 mi W of Challange.; 0 732 Comment
  UC423489  Penstemon laetus var. leptosepalus David D. Keck 1930-7-25 982 Yuba Challenge Sierra Nevada, Challenge 731 Comment
  NY604494  Penstemon laetus var. leptosepalus L. S. Rose 1939-6-7 39236 Yuba South Fork Feather River, 3 miles south of Pulga 609.6 Comment
  NY604505  Penstemon laetus var. leptosepalus K. A. Vincent 1987-6-24 4431 Yuba Sierra Nevada, New York Flat; along north side of LaPorte Road (CA E21) at jct. New York House (Rd.) ca. 1.8 miles west of Challenge. 731.5 Comment
  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
  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
  SEINET12315995  Pentagramma triangularis E. O. Pelton 1878-1 s.n. Yuba no further locality Comment
  CAS-BOT-BC211273  Perideridia bacigalupii Lowell Ahart 1980-8-12 2527 Yuba About 2 miles south-east of Woodleaf 800 Comment
  CHSC105607  Perideridia bacigalupii L. P. Janeway 2010-8-11 10138 Yuba Northern High Sierra Nevada. Plumas National Forest; near the head of Little Oregon Creek, along Peterson Ridge Road 1.4 road km southeast of Oregon Hill Road. Mostly along the north edge of the dirt road and just up the cutbank. 876 Comment
  CHSC105629  Perideridia bacigalupii L. P. Janeway 2010-8-11 10141 Yuba Northern High Sierra Nevada. Plumas National Forest, under the power lines about 150 m northwest of Oregon Hill Road 2.2 road km north of Marysville Road; about half way between Oregon Peak and Summit Hill. 832 Comment
  CHSC107426  Perideridia bacigalupii L. P. Janeway 2011-8-10 10644 Yuba Northern High Sierra Nevada. Plumas National Forest; serpentine slope on southeast side of Road 19N04 1.3 km north of Challenge-La Porte road; 2.2 air km northeast of Challenge. 1023 Comment
  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
  UCD18441  Perideridia bolanderi subsp. involucrata Eric Knapp 2000-6-16 229 B Yuba Sierra Foothill Research and Extension Center, dry grassy slope, blue oak woodland. 300 Comment
  JEPS118647  Perideridia kelloggii L. P. Janeway 2010-8-11 10139 Yuba Northern High Sierra Nevada. Plumas National Forest; under the power lines about 150 m northwest of Oregon Hill Road 2.2 road km north of Marysville Road; about half way between Oregon Peak and Summit Hill. Comment
  UCD18440  Perideridia kelloggii Eric Knapp 2000-1 232 B Yuba Sierra Foothill Research and Extension Center, adjacent to moist seep, SW-facing slope in blue oak, interior live oak woodland. 373 Comment
  CHSC84980  Perideridia lemmonii Lowell Ahart 2003-10-11 10624 Yuba West side of meadow, on the east side of a gravel road to the Rose Ranch, about 100 yards west of the paved road to Scales, about 1/2 mile south of the Rose Ranch, about 5 miles (air) northeast of Strawberry Valley, about 7 miles (air) southwest of La Porte. 1219 Comment
  JEPS95124  Perideridia lemmonii Lowell Ahart 1997-8-7 7824 Yuba about 3 air mi se of Challenge (on e side of the dirt road, near an unnamed stream, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  UC1389942  Perideridia lemmonii T. I. Chuang and R. Bacigalupi 1963-8-1 5909 Yuba Comment
  CHSC45876  Perideridia parishii subsp. latifolia Lowell Ahart 1980-8-12 2530 Yuba Near the edge of the dirt road, about 2 miles south-east of Woodleaf. 731 Comment
  CHSC81810  Persicaria lapathifolia Lowell Ahart 2001-11-2 9394 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  CHSC116032  Persicaria maculosa Lowell Ahart 2015-11-19 20677 Yuba 100 yards or more north of the spillway area, below the high water line, west side of Lake Francis, about 1-1/2 miles south of Dobbins. 512 Comment
  CHSC76289  Persicaria maculosa Lowell Ahart 1999-9-17 8242 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
  JEPS124263  Persicaria maculosa Lowell Ahart 2015-11-19 20677 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  UCD99571  Persicaria maculosa G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12835 Yuba Northern Sierra Nevada Mountains: along Hwy. CA-49, 0.5 mile south of Camptonville. 817 Comment
  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
  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
  UCD99789  Persicaria punctata G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12826 Yuba Northern Sierra Nevada Mountains Foothills: Mountain House Road 0.6 mile west of the county line. Sleighville area beside Willow Creek. 1021 Comment
  CHSC108226  Petrorhagia dubia Lowell Ahart 2011-6-7 17388 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UC1125846  Petrorhagia dubia H. S. Yates 1933-5-23 3616 Yuba two mi ne Spencerville Rd. Indian Springs--Spencerville; Smartsville Quad. Comment
  UC592758  Petrorhagia dubia Carl B. Wolf 1937-5-13 8632 Yuba on road to Stanfield Hill 2 mi above Browns Valley; Sierra Nevada foothills, above Browns Valley 121 Comment
  RSA261406  Petrorhagia dubia H. J. Vaux Jr. 1961-5-20 47 Yuba State Hwy 20, 12.3 miles W of Marysville. 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
  JEPS107366  Phacelia cicutaria var. cicutaria Lowell Ahart 2005-3-11 11618 Yuba Rock outcrop, 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 393 Comment
  UC1069332  Phacelia cicutaria var. cicutaria M. A. Elvin 1933-6-7 26 Yuba 4 mi sw Courtney Creek; Smartsville Quadrangle Comment
  UCD120315  Phacelia cicutaria var. cicutaria Kathleen Keliher 1975-4-1 52 Yuba Along four wheel drive road, one quarter of a mile from picnic area, H 8 - 11 project area, Sierra Foothill Field Station. 152 Comment
  SJSU11213  Phacelia egena J. B. Willis Jr. 1969-4-19 54 Yuba Hammonton Rd 3 mi W of Smartville 182 Comment
  CHSC8261  Phalaris aquatica J. G. Moore 1969-5-4 35 Yuba Hwy. 20, 300 yds. w of 7 mi. House on s side of road growing in ditch next to rice fields. [Label incorrectly says Nevada County]. 91 Comment
  UCD88331  Phalaris aquatica Barbara Yungert 1974-5-9 G- 6 Yuba Sierra Foothill Field Station. Along Road 1, near P 1-13 fence, W of Porter Hill. Comment
  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
  CHSC97679  Phalaris minor Lowell Ahart 2007-5-14 13843 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  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
  CAS-BOT-BC72715  Philadelphus lewisii Rimo Bacigalupi 1927-7-2 1594 Yuba highway to Downieville about 8 miles northeast of Camptonville Comment
  UC1311876  Philadelphus lewisii B. F. Smith 1965-6-8 52 Yuba Quadrangle 50A3 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
  UCD89619  Phleum pratense Beecher Crampton 1965-6-17 7386 Yuba 3.8 miles s.e. of Bangor, Las Vergeles Road. Comment
  JEPS71087  Phlox gracilis Willis L. Jepson 1892-4-9 15052 Yuba Smartsville Comment
  SBBG6056  Phlox speciosa H. and M. Dearing 1939-5-8 3296 Yuba near Camptonville Comment
  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
  SEINET7073615  Phlox speciosa subsp. occidentalis A. G. Vestal 1955-5-21 s.n. Yuba About 20.5 miles east of Oroville on Challang Cuttoff Road. UTM Zone 10, 650291mE, 4373240mN. Coordinate datum: NAD27. Comment
  RSA12711  Phoradendron densum Carl B. Wolf, E. R. Johnson 1934-10-4 6158 Yuba N side of Indiana Creek, 1.7 miles W of Indiana Ranch. Sierra Foothills. 549 Comment
  UC177573  Phyla caespitosa H. M. Hall 1914-8-2 9833 Yuba near Marysville Comment
  JEPS94450  Physocarpus capitatus Lowell Ahart 1997-8-9 7839 Yuba along an unnamed creek about 2 air mi se of Woodleaf 701 Comment
  CHSC69143  Phytolacca americana Lowell Ahart 1997-8-7 7820 Yuba On the east side of a small stream, a branch of Little Oregon Creek, on the south side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  CHSC43412  Pickeringia montana Lowell Ahart 1975-6-25 812 Yuba Near the Brownsville dump, about 2 miles west of Brownsville. 487 Comment
  CHSC45919  Pickeringia montana Lowell Ahart 1976-5-27 1131 Yuba Near the edge of Ponderosa Way, near the Brownsville Dump, west of Brownsville. 609 Comment
  CAS-BOT-BC76954  Pilularia americana Lowell Ahart 1977-9-25 s.n. Yuba 2 miles northeast of Marysville, Sam Shintaffer Farm. 35 Comment
  JEPS113775  Pilularia americana Lowell Ahart 2007-5-12 13765 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  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
  UCD135105  Pinus sabiniana Barbara Yungert 1974-6-5 192 Yuba Sierra Foothill Field Station. Comment
  UCD139003  Piperia elegans Kenneth Stewart 1964-6-26 s.n. Yuba 2 miles northeast of Challenge. Comment
  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
  CAS-BOT-BC228044  Plagiobothrys Gordon H. True 1963-4-17 1176 Yuba About 10 miles E of Marysville, on Marysville-Grass Valley Highway 30 Comment
  SJSU8060  Plagiobothrys acanthocarpus J. B. Willis Jr. 1969-4-19 52 Yuba 5 mi E of Linda, N edge of Beale Air Base on Hammonton Rd Comment
  SBBG33961  Plagiobothrys bracteatus L. S. Rose 1967-6-13 67128 Yuba Camp Far West Reservoir, 7 mi NE of Wheatland 121 Comment
  SJSU5649  Plagiobothrys bracteatus L. S. Rose 1967-6-13 67128 Yuba Camp Far West Reservoir 7 mi NE of Wheatland 121 Comment
  CDA31977  Plagiobothrys fulvus L. Ahart 2007-5-12 13777 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. Comment
  JEPS113753  Plagiobothrys fulvus Lowell Ahart 2007-5-12 13777 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  CHSC96493  Plagiobothrys glyptocarpus var. glyptocarpus Lowell Ahart 2007-4-17 13682 Yuba Along a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  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
  CHSC97631  Plagiobothrys greenei Lowell Ahart 2007-5-12 13778 Yuba Scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  RSA726546  Plagiobothrys greenei L. Ahart 2007-5-12 13778 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  UCR234209  Plagiobothrys greenei George K. Helmkamp, E. A. Helmkamp 2011-4-10 17167 Yuba Sacramento Valley, along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland 44 Comment
  CAS-BOT-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
  CDA31978  Plagiobothrys stipitatus var. micranthus L. Ahart 2007-5-12 13779 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. Comment
  CDA40653  Plagiobothrys stipitatus var. micranthus L. Ahart 2002-6-3 9688 Yuba On the bottom of the pond spillway, second small man made pond, about 1/4 mile south of Long Ravine Road, about 1/8 mile east of the intersection of Camp Far West Road and Long Ravine Road there is a poor Texas gate on the south side of the road, north of Camp Far West Reservoir. Comment
  CHSC115204  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2015-4-30 20132 Yuba On the west side of the quarry, about 1 1/4 miles (air) southwest of the Bullard Bar Dam, about 3 miles (air) northeast of Dobbins. 709 Comment
  CHSC97630  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2007-5-12 13779 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  RSA0107418  Plagiobothrys stipitatus var. micranthus George K. Helmkamp, Amy Barnes 2013-3-28 20250 Yuba Eastern Sacramento Valley: northbound exit road from CA-65, connecting with Forty Mile Road. 30 Comment
  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
  SBBG121519  Plagiobothrys stipitatus var. micranthus L. Ahart 2007-5-12 13779 Yuba 400 yds N of Fruitland Rd, ca. 13 mi NE of Marysville 28 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
  SEINET7072716  Plagiobothrys stipitatus var. micranthus A. G. Vestal 1963-5-7 s.n. Yuba About 1.7 miles west of Honcut on the Lower Honcut Road. UTM Zone 10, 623885E, 4353199mN. Coordinate datum: NAD 27. Comment
  CHSC68472  Plagiobothrys tenellus Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7735 Yuba Along the south side of Dry Creek, north of the poor dirt road, about 1 mile east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 121 Comment
  JEPS94324  Plagiobothrys tenellus Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7735 Yuba about 17 mi ne of Marysville ( along s side of Dry Creek, n of the poor dirt road, about 1 mi e of Scott Forbes Road (Long Bar Road)); Dry Creek 121 Comment
  CDA31980  Plantago coronopus L. Ahart 2007-5-12 13801 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
  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
  CHSC59561  Plantago erecta H. E. Mac Lennan 1992-4-15 15 Yuba 20 air mi se of Oroville. 487 Comment
  CHSC90349  Plantago erecta Lowell Ahart 2005-3-11 11606 Yuba Large rock outcrop, south slope, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 395 Comment
  CHSC97478  Plantago erecta Lowell Ahart 2007-5-12 13803 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCSC008610  Plantago erecta Lowell Ahart 2007-5-12 13803 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UCD124500  Plantago erecta Barbara Yungert 1973-5-3 109 Yuba west of road near cattle guard and U.C. sign, west of station, Sierra Foothill Field Station. Comment
  CHSC96871  Plantago lanceolata Lowell Ahart 2007-6-30 14231 Yuba Near a new ditch, near and east of a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC97493  Plantago lanceolata Lowell Ahart 2007-5-14 13867 Yuba Along the dirt road, near the power tower, power tower is about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  RSA726804  Plantago lanceolata L. Ahart 2007-6-30 14231 Yuba Near a new ditch, near and east of a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  SEINET9809658 Image available Plantago major Richard Carter 2006-7-31 Yuba 12.5 mi ENE Marysville jct. Hwy CA 20 and Hwy CA 70, by Hwy CA 20 Comment
  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
  CHSC96976  Platanthera leucostachys Lowell Ahart 2007-8-7 14422 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
  JEPS117430  Platanthera leucostachys Lowell Ahart 2010-7-27 16918 Yuba Along small streams in the meadow, on the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam 1219 Comment
  JEPS95419  Platanthera leucostachys Lowell Ahart 1994-6-27 7390 Yuba 4 mi NE of Strawberry Valley (near the SE side of Schwartz Meadow, on the E side of La Porte Road) 1219 Comment
  UCD35774  Platanus racemosa Beecher Crampton 1962-4-24 6287 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UC912454  Plectritis ciliosa subsp. ciliosa Herbert L. Mason 1927-5-11 3731 Yuba near Dobbins 457 Comment
  CHSC97484  Poa annua Lowell Ahart 2007-5-12 13826 Yuba Along the dirt road and about 20 yards northwest of the gate, about 20 yards south of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS113470  Poa annua Lowell Ahart 2007-5-12 13826 Yuba Along the dirt road and about 20 yards northwest of the gate, about 20 yards south of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  UCD90855  Poa compressa Beecher Crampton 1971-6-18 8732 Yuba Sierra Foothill Range Field Station. Ca. 6 miles east of Browns Valley. Comment
  CAS-BOT-BC255962  Poa pratensis Lowell Ahart 1979-6-25 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
  CDA18857  Poa pratensis subsp. pratensis J. Horenstein 1999-6-9 s.n. Yuba Wetland, just north of bridge over Cock's Creek, Spenceville Wildlife Area. 0 Comment
  UCD33111  Poa trivialis Beecher Crampton 1966-6-14 7756 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  UCD92100  Poa trivialis Beecher Crampton 1966-6-14 7756 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  SEINET7072719  Pogogyne zizyphoroides A. G. Vestal 1963-5-7 s.n. Yuba About 3.5 miles north of Wheatland on Jasper Lane. UTM Zone 10, 636590E, 4323573mN. Coordinate datum: NAD 27. Comment
  RSA0022175  Pogogyne zizyphoroides J. T. Howell 1967-6-13 3556 Yuba ca. 5 miles E of Wheatland and 1 mile N of Bear River. 55 Comment
  CDA14566  Polygala cornuta G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3044 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  CHSC32102  Polygala cornuta L. Ahart 1979-6-25 1950 Yuba Below the rd, ca. 2 mi e of Challenge. 700 Comment
  CDA43443  Polygala cornuta Jan Kendal 2015-5-27 PDR# 510 P06303312 Yuba Loma Rica. 0 Comment
  SEINET9323173  Polygala cornuta Unknown 1981-6-22 3044 Yuba Oregon Hill Road Comment
  CAS-BOT-BC170372  Polygala cornuta var. cornuta Rimo Bacigalupi 1927-7-2 1588 Yuba 1 mile west of Camptonville Comment
  CAS-BOT-BC170374  Polygala cornuta var. cornuta Clarence R. Quick 1965-7-28 65 -22 Yuba Ca. 1.5 miles south of North Star on Peterson Ridge, off LaPorte Road, NE of Challenge - Sierra Nevada Comment
  CHSC112960  Polygala cornuta var. cornuta L. P. Janeway 2014-7-2 11435 Yuba Northern High Sierra Nevada. Plumas National Forest; Peterson Ridge Road rounding the southeast-trending ridge between Indian Creek and the un-named creek south of that; 2.4 air-km east of Pike County Peak. 820 Comment
  JEPS94513  Polygala cornuta var. cornuta Lowell Ahart 1997-8-7 7811 Yuba about 3 air mi se of Challenge (on n side of the dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  UCD80654  Polygala cornuta var. cornuta CNPS SN Foothill Team 2005-5-31 SNFN 0330 c Yuba BLM, Ponderosa Landfill, near the southeast corner of the parcel (east of the defunct landfill). The plot is to the north of an old dirt road that runs to the southeast corner. 685 Comment
  JEPS113618  Polygonum arenastrum Lowell Ahart 2007-5-12 13809 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  JEPS115022  Polygonum arenastrum Lowell Ahart 2007-11-1 14537 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  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
  CHSC97683  Polygonum aviculare Lowell Ahart 2007-11-1 14537 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  UCR191119  Polygonum aviculare George K. Helmkamp, E. A. Helmkamp 2007-8-29 12825 Yuba Northern Sierra Nevada Mountains Foothills, Mountain House Road 0.6 mile west of the Sierra Co. line; Sleighville area beside Willow Creek 1021 Comment
  UCD100028  Polygonum aviculare subsp. depressum G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12825 Yuba Northern Sierra Nevada Mountains Foothills: Mountain House Road 0.6 mile west of the Sierra Co. line; Sleighville area beside Willow Creek. 1021 Comment
  CAS-BOT-BC414362  Polygonum californicum J. T. Howell; Gordon H. True 1971-5-26 s.n. Yuba 8 mi. e. of Marysville 30 Comment
  RSA654916  Polygonum californicum Beecher Crampton 1952-10-31 901 Yuba Yolo County: Dry adobe, alkaline soil, where water has stood, Yolo Causeway, 5 miles E of Davis Comment
  UCD77943  Polygonum californicum Robert E. Preston 2001-7-30 1754 Yuba Beale Air Force Base, in open area at north end of taxiways. 39 Comment
  CHSC45951  Polygonum douglasii subsp. douglasii Lowell Ahart 1980-8-12 2540 Yuba Growing on a large gravel bar that is formed from a debris dam across Slate Creek, a little below where Gold Run Creek flows into Slate Creek, above Oniion Creek, about 7 miles south of La Porte. 1158 Comment
  CDA6938  Polygonum hydropiper G. K. Helmkamp, E. A. Helmkamp 2006-10-1 11528 Yuba Northern Sierra Nevada Mountain Foothills; Along Highway CA-49 just north of the Nevada County line at the Middle Yuba River bridge. Comment
  JEPS102531  Polygonum lapathifolium Lowell Ahart 2001-11-2 9394 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  CAS-BOT-BC418539  Polygonum minimum Lowell Ahart 1980-8-12 2542 Yuba Along Slate Creek 1250 Comment
  CHSC63156  Polygonum parryi Lowell Ahart 1994-6-27 7376 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
  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
  RSA10979  Polygonum persicaria Carl B. Wolf 1927-11-5 1438 Yuba Eight miles from Marysville on road to Browns Valley. Comment
  CAS-BOT-BC232956  Polypogon australis Peter Rubtzoff 1972-4-4 6725 Yuba UC Sierra Foothill Range Field Station, N of Smartville Comment
  CHSC108183  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
  CHSC69159  Polypogon interruptus Lowell Ahart 1997-8-7 7827 Yuba On the west side of the dirt road, near an unnamed stream, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  JEPS118320  Polypogon interruptus Lowell Ahart 2011-6-7 17426 Yuba East of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CAS-BOT-BC233243  Polypogon maritimus Gordon H. True; J. T. Howell 1967-6-13 3560 Yuba Edge of reservoir, Camp Far West Reservoir on Bear River E of Wheatland 60 Comment
  UCD91191  Polypogon maritimus Beecher Crampton 1965-6-17 7373 Yuba Ca. 3/4 mile north of Stanfield Hill. Willow Glen Creek. 396 Comment
  UC1153916  Polypogon maritimus Beecher Crampton 1957-6-5 4114 Yuba along State Hwy. 20, 10 miles east of Marysville Comment
  CHSC97440  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
  RSA726565  Polypogon monspeliensis L. Ahart 2007-5-14 13882 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  UCD91224  Polypogon monspeliensis A. A. Beetle 1941-6-26 2734 Yuba Near Marysville. Comment
  CHSC116295  Polystichum imbricans subsp. curtum Lowell Ahart 2015-10-23 20580 Yuba On west side of road to Slate Creek, about 1/4 mile southwest of Slate Creek Dam, about 2 miles (air) northeast of La Porte Road, about 6 1/4 miles (air) southwest of La Porte. 1119 Comment
  CHSC4212  Polystichum imbricans subsp. curtum J. Wheeler 1967-2-15 1 Yuba Locally scattered along small brook s of La Porte Road about 1.7 mi. ne of Brownsville. 694 Comment
  JEPS124289  Polystichum imbricans subsp. curtum Lowell Ahart 2015-10-23 20580 Yuba About 1/4 mile southwest of the Slate Creek Dam, about 2 miles (air) northeast of La Porte Road, about 6 1/4 miles (air) southwest of La Porte. Comment
  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
  UCR191116  Polystichum imbricans subsp. imbricans George K. Helmkamp, E. A. Helmkamp 2007-8-29 12823 Yuba Northern Sierra Nevada Mountains Foothills, Mountain House Road 0.6 mile west of the Sierra Co. line; Sleighville area beside Willow Creek 1021 Comment
  UCR206950  Polystichum imbricans subsp. imbricans George K. Helmkamp, E. A. Helmkamp 2009-5-28 14831 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 Comment
  CAS-BOT-BC76760  Polystichum imbricans subsp. imbricans W. R. Dudley 1893-6-15 s.n. Yuba Unspecified. Comment
  CHSC97753  Polystichum munitum Lowell Ahart 2007-11-1 14530 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  JEPS95098  Polystichum munitum Lowell Ahart 1997-8-7 7830 Yuba ca. 3 (air) mi. e. Challenge (on w. side of dirt rd. on s. side of Indian Creek) 762 Comment
  CAS-BOT-BC102412  Populus fremontii A. Eastwood 1919-9-1 s.n. Yuba Marysville, along levee Comment
  CAS-BOT-BC102492  Populus fremontii Junea Kelley 1920-4-24 s.n. Yuba Los [Vergils] Verjeles Comment
  CAS-BOT-BC267184  Potamogeton foliosus A. Starker Leopold 1956-7-18 s.n. Yuba 3 miles NW of Rio Oso Post Office Comment
  CAS-BOT-BC453843  Potamogeton nodosus W. V. Middlekauff 1960-6-19 s.n. Yuba 3 miles n.w. of Rio Oso Post Office Comment
  CDA37686  Potamogeton nodosus Robin Breckenridge 2004-6-15 s.n. Yuba Oregon House, Yuba County Irrigation Canal. 0 Comment
  CDA15875  Potamogeton pectinatus E. Storm 2000-2-1 PDR 1199213 Yuba Peach Tree Golf Course, Simpson Dantoni Rd., Marysville. 0 Comment
  CDA18836  Potamogeton pectinatus R. Breckenridge, Morse 1999-7-22 PDR 958961 F Yuba Lake Pillsbury, Upper Lake. 0 Comment
  CDA18833  Potamogeton pusillus R. Breckenridge, Morse 1999-7-22 PDR 958961 A Yuba Lake Pillsbury, Upper Lake. 0 Comment
  CAS-BOT-BC454055  Potamogeton pusillus subsp. pusillus W. V. Middlekauff 1955-7-4 s.n. Yuba 3 miles n.w. of Rio Oso Post Office Comment
  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
  CHSC82364  Potamogeton pusillus var. pusillus Lowell Ahart 2002-6-3 9687 Yuba Man made pond, about 1/4 mile south of Long Ravine Road, about 1/8 mile east of the intersection of Camp Far West Road and Long Ravine Road there is a poor Texas gate on the south side of the road, north of Camp Far West Reservoir. 106 Comment
  JEPS95373  Potentilla gracilis var. fastigiata Lowell Ahart 1994-6-27 7382 Yuba 4 mi NE of Strawberry Valley (E of the logging road E of Schwartz Meadow, E side of La Porte Road) 1219 Comment
  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
  CHSC110322  Prunella vulgaris var. lanceolata L. P. Janeway 2013-6-7 11134 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
  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
  UC1128490  Prunus subcordata G. Burks 1933-7-26 14 Yuba 1 mi s of Camptonville (Tahoe National Forest); Tahoe National Forest 822 Comment
  CHSC113675  Pseudognaphalium californicum L. P. Janeway 2014-6-24 11417 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
  UC1118479  Pseudognaphalium californicum M. A. Elvin 1933-7-6 41 Yuba 2.5 mi w of Bridgeport; Smartsville Quadrangle 304 Comment
  CHSC97231  Pseudognaphalium luteoalbum Lowell Ahart 2007-6-22 14222 Yuba Bottom of a new ditch, near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS118090  Pseudognaphalium luteoalbum Lowell Ahart 2011-6-7 17376 Yuba West of a willow shrub, Just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  JEPS124145  Pseudognaphalium luteoalbum Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20636 Yuba Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  UCD135082  Pseudognaphalium luteoalbum G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12833 Yuba Northern Sierra Nevada Mountains: along Hwy CA-49, 0.5 mile south of Camptonville. 817 Comment
  CAS-BOT-BC356991  Pseudognaphalium luteoalbum Lowell Ahart 1980-6-19 2401 Yuba 3 miles south-east of Challenge 800 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
  JEPS94448  Pseudognaphalium thermale Lowell Ahart 1997-8-30 7881 Yuba about 1 air mi s of Woodleaf (on the w side of the dirt road, near a road culvert) 944 Comment
  CAS-BOT-BC80098  Pseudotsuga menziesii Alice Eastwood 1918-4-7 6806 Yuba Camptonville Comment
  UCD135124  Pseudotsuga menziesii var. menziesii Kathleen Keliher 1975-5-6 91 Yuba Ca. 30 meters from La Porte Road on Forbestown Road, 1 mile east of Woodleaf. 929 Comment
  SEINET7042623  Psilocarphus brevissimus 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
  CAS-BOT-BC361868  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
  CHSC97475  Psilocarphus oregonus Lowell Ahart 2007-5-12 13774 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  SEINET7042647  Psilocarphus oregonus A. G. Vestal 1963-5-30 s.n. Yuba Weedy depression near Dry Creek and north oh Sicard Flat. Smartville quadrangle UTM Zone 10, 642203mE, 4345148mN. Comment
  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
  CHSC43544  Pteridium aquilinum var. pubescens Lowell Ahart 1979-6-3 1923 Yuba About 1 mile south of Challenge. 670 Comment
  JEPS115069  Pteridium aquilinum var. pubescens Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14500 Yuba Hampshire Creek Meadow, about 80 yards E of the dirt rosd, about 1 mi (air) E of Clipper Mills 1015 Comment
  CHSC63138  Pterospora andromedea Lowell Ahart 1994-6-27 7396 Yuba In forest on the north side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  JEPS107404  Pterostegia drymarioides Lowell Ahart 2005-3-11 11617 Yuba Large rock outcrop, south slope, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica 395 Comment
  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
  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
  UCD82666  Quercus chrysolepis Rodney Gale Myatt 1972-1 1484 -6 Yuba Lake Francis. Lower edge of small creek (dry in summer), which empties into a small, damned basin. 550 Comment
  CAS-BOT-BC86014  Quercus douglasii Carl B. Wolf 1930-10-12 1737 Yuba along Yuba River near Hammonton 152 Comment
  CAS-BOT-BC86017  Quercus douglasii Carl B. Wolf 1930-10-12 1739 Yuba along the Yuba River near bridge on Browns Valley to Smartville Road 152 Comment
  CAS-BOT-BC94993  Quercus douglasii R. C. Wenk 2008-7-18 977 Yuba 5 mi. from HIghway 20 going E from Marysville, along Peoria and Scott Forbes roads. 204 Comment
  UC484022  Quercus douglasii Carl B. Wolf 1930-10-12 Yuba near Hammondon (along Yuba River); Yuba River 152 Comment
  UC484023  Quercus douglasii Carl B. Wolf 1930-10-12 Yuba near bridge on Browns Valley to Smartsville Road (along Yuba River); Yuba River 152 Comment
  UCD45764  Quercus douglasii Beecher Crampton 1963-9-9 6877 Yuba 2.5 miles n.n.w. Smartsville, 5 miles east of Brown's Valley. UC. Sierra Foothill Field Station. Comment
  JEPS88904  Quercus durata Lowell Ahart 1994-6-5 7306 Yuba about 3 (air) mi e Forbestown (on the n side of Forbestown road, on the n side of Costa Creek); Costa Creek, Forbestown road 853 Comment
  SEINET10937811  Quercus durata Mary Susan Taylor, L. Hanson Taylor 3466 Yuba T19N R7E se section 7; Clipper Mills quad. N side of Forbestown-Woodleaf Rd, ca. 3/4 mi E of its jct with Forbestown Rd, ca. 2 mi W of Woodleaf. Open reddish weathered serpentine area; 2800 ft. 853 Comment
  JEPS113300  Quercus garryana L. P. Janeway 2006-5-24 8618 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way 1.6 road km north of La Porte Road and Brownsville. Comment
  CDA22096  Quercus kelloggii H. H. Keifer 1953-10-11 Yuba Lake northeast of Dobbins. 0 Comment
  CHSC47413  Quercus kelloggii Lowell Ahart 1976-4-15 1073 Yuba On the west side of Ponderosa Way, near the Brownsville Dump, about 2 miles southwest of Brownsville. 457 Comment
  UCD46660  Quercus kelloggii Barbara Yungert 1974-6-5 197 Yuba East Road 4, L 1-21 project area, Sierra Foothill Field Station, Yuba County, California. Comment
  CDA20045  Quercus lobata P. Akers 2002-9-19 StB- 079 Yuba Sacramento Valley; E of Marysville on Smartville & Beale AFB Rd, 0.1 mi S of Waldo Rd. 94 Comment
Read comments Jun 12 2008
  CAS-BOT-BC94996  Quercus wislizeni R. C. Wenk 2008-7-18 978 Yuba 5 mi. from Highway 20 going east from Marysville, along Peoria and Scott Forbes Roads 204 Comment
  UCD112042  Quercus wislizeni Christopher Mallek 2008-5-5 IC3- 11 Yuba Indiana Creek. 617 Comment
  UCD37875  Quercus wislizeni Beecher Crampton 1962-4-24 6295 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  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
  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
  UCD37878  Ranunculus arvensis Beecher Crampton 1962-4-24 6302 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. 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
  CHSC97649  Ranunculus bonariensis var. trisepalus Lowell Ahart 2007-5-12 13811 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113475  Ranunculus bonariensis var. trisepalus Lowell Ahart 2007-5-12 13811 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  SD241160  Ranunculus bonariensis var. trisepalus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17205 Yuba East edge of Sacramento Valley: junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47a^z) of Wheatland (Camp Far West 7.5'Q) 56 Comment
  SD248487  Ranunculus bonariensis var. trisepalus George K. Helmkamp, Elizabeth A. Helmkamp 2011-5-6 17205 Yuba East edge of Sacramento Valley: junction of Camp Far West Road and Spenceville Road, 5.4 miles NE (47a^z) of Wheatland (Camp Far Weset 7.5'Q) 56 Comment
  UCR231323  Ranunculus bonariensis var. trisepalus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17205 Yuba East edge of Sacramento Valley, junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg. ) of Wheatland 56 Comment
  UCR244519  Ranunculus bonariensis var. trisepalus J. R. Shevock, Robert F. Holland 1985-5-6 11127 Yuba Sacramento Valley, Beale Air Force Base east of Marysville 40 Comment
  UCR258236  Ranunculus bonariensis var. trisepalus George K. Helmkamp, Amy Barnes 2013-3-28 20251 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  RSA647815  Ranunculus californicus E. H. Cowen 1948-3-10 s.n. Yuba near railroad tracks east side 8.5 mi S of Marysville 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
  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
  CHSC97672  Ranunculus muricatus Lowell Ahart 2007-5-12 13812 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  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
  JEPS87732  Ranunculus occidentalis Lowell Ahart 1994-7-27 7373 Yuba about 4 mi ne Strawberry Valley (e side of La Porte Rd, in about center of meadow); Schwartz Meadow 1219 Comment
  UCD37883  Ranunculus occidentalis Beecher Crampton 1962-4-24 6307 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD96786  Ranunculus occidentalis R. O. Hanes 1991-5-21 16 Yuba Yuba County, Rd 18N77 or 121. Tahoe Forest. 579 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
  SEINET7042653  Ranunculus orthorhynchus A. G. Vestal 1963-5-30 s.n. Yuba A meadow 3.9 miles south of Brownsville. Rackerby quadrangle UTM Zone 10, 641137mE, 4361952mN. Comment
  SJSU10210  Ranunculus orthorhynchus var. orthorhynchus C. W. Sharsmith 1983-6-7 8791 Yuba Rose Ranch c. 4 mi NE from Strawberry Valley on LaPorte-Quincy Rd; Yuba & Sierra county boundary 1432 Comment
  UC1442608  Ranunculus pusillus Lowell Ahart 1978-4-21 Yuba rice field w Kimball Lane (ca 2 mi ne of Marysville); Sam Shintaffer Farm 33 Comment
  SEINET1908657  Raphanus raphanistrum G. K. Helmkamp, E. A. Helmkamp 2008-1 14211 Yuba Sacramento Valley: Ostroom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst. 20 Comment
  UCR201738  Raphanus raphanistrum George K. Helmkamp, E. A. Helmkamp 2008-10-6 14211 Yuba Sacramento Valley, Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  RSA318096  Raphanus raphanistrum Fields 1969-4-27 25 Yuba Mariposa and Douglas AVe in El Segundo Comment
  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
  CHSC33754  Rhamnus crocea M. S. Taylor; L. Hanson 1981-4-15 3538 Yuba S side of rd 19N44, in Golden Gate Ravine, ca. 1.5 mi sw of Woodleaf. 853 Comment
  CAS-BOT-BC59382  Rhamnus ilicifolia Carl B. Wolf 1927-11-6 1449 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  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
  RSA754447  Rhamnus ilicifolia L. P. Janeway 2008-5-11 9360 Yuba Northern High Sierra Nevada: In the NW head of Slapjack Creek; along Road 19N34, 1.3 road km SE of Challenge-La Porte Road; about 1.2 km SSE of Woodleaf. 940 Comment
  RSA7702  Rhamnus ilicifolia Carl B. Wolf 1927-11-6 1448 Yuba Along the Yuba River near bridge on the Browns Valley to Smartsville Road. Comment
  UC592763  Rhamnus ilicifolia unknown 1927-11-6 1449 Yuba Browns Valley to Smartsville road (along left bank of Yuba River, near bridge); Yuba River 152 Comment
  POM243754  Rhamnus tomentella subsp. tomentella Carl B. Wolf, E. R. Johnson 1934-10-4 6155 Yuba Texas Hill, 2 miles from Dobbins. 457 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
  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
  UC592796  Rhamnus tomentella subsp. tomentella unknown 1927-11-6 1447 Yuba Brownsville Valley to Smartsville road (along left bank of Yuba River, near bridge); Yuba River 152 Comment
  CAS-BOT-BC199726  Rhododendron occidentale Beecher Crampton 1966-6-14 7740 Yuba 1 mile east of Brownsville, La Porte road 731 Comment
  CHSC112069  Rhododendron occidentale L. P. Janeway 2014-8-26 11573 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. Comment
  RSA471033  Rhododendron occidentale var. californicum Anstruther Davidson 1876-7-7 s.n. Yuba Strawberry Valley Comment
  CAS-BOT-BC199743  Rhododendron occidentale var. paludosum Lloyd W. Swift 1932-5-9 64 Yuba Plumas National Forest. S. of Challenge 762 Comment
  UC1130561  Rhus trilobata M. A. Elvin 1933-8-7 45 Yuba 2 mi n Oregon House 457 Comment
  CHSC116585  Rhynchospora capitellata L. P. Janeway 2015-7-1 11796 Yuba Northern High Sierra Nevada. Plumas National Forest; headwters of cottage Creek, one of a series of meadows; 0.15 km soutwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. 815 Comment
  UC1127537  Ribes roezlii M. A. Elvin 1933-7-10 47 Yuba 2 mi s Brownsville; Smartsville Quadrangle Comment
  CHSC107912  Robinia pseudoacacia L. P. Janeway 2011-9-15 10726 Yuba Northern High Sierra Nevada. Plumas National Forest; at the blocked eastern end of the eastern extension of Fountain House Road, 3.1 road km east of Oregon Hill Road; 4.3 air km southeast of Pile County Peak. 735 Comment
  JEPS115020  Rorippa curvisiliqua Lowell Ahart 2007-11-1 14542 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  CHSC97695  Rorippa curvisiliqua var. curvisiliqua Lowell Ahart 2007-11-1 14542 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  CHSC82382  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2002-6-3 9690 Yuba On the bottom of the pond spillway, second small man made pond, about 1/4 mile south of Long Ravine Road, about 1/8 mile east of the intersection of Camp Far West Road and Long Ravine Road there is a poor Texas gate on the south side of the road, north of Camp Far West Reservoir. 102 Comment
  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
  CAS-BOT-BC7106  Rosa bridgesii Lester Rowntree 1941-5-14 s.n. Yuba On road bewteen Dobbin & Camplonville Comment
  CHSC113651  Rosa bridgesii L. P. Janeway 2014-5-20 11256 A Yuba Northern High Sierra Nevada. Plumas National Forest; 1.9 air-km southeast of Pike County Peak, 4.1 air-km southeast of Challenge; near Road 29N38. 928 Comment
  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
  JEPS104088  Rosa bridgesii Lowell Ahart 2003-7-2 10342 Yuba About 200 yd south of the 4-H Camp, on the w side of Oregon Hill Rd, ca 1/2 mi n of Marysville Rd, ca 2 mi (air) ne of Dobbins. 815 Comment
  JEPS104206  Rosa bridgesii Lowell Ahart 2003-10-11 10627 Yuba On both sides of the paved road to Scales, ca 1 mi south of La Porte Rd, ca 1 1/2 mi (air) south of Sly Creek, ca 1 1/2 mi ne of Strawberry Valley. 1219 Comment
  JEPS123871  Rosa bridgesii Lowell Ahart 2015-4-30 20124 Yuba About 3/4 mile (air) southeast of Woodleaf. Comment
  UCD113387  Rosa bridgesii Kathleen Keliher 1975-5-30 119 Yuba Along New York Flat Road, W of Forbestown. 822 Comment
  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
  CHSC110458  Rosa canina L. P. Janeway 2013-7-2 11181 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, one of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. 815 Comment
  JEPS120549  Rosa canina L. P. Janeway 2013-7-2 11181 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, one of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. Comment
  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
  SJSU10220  Rosa gymnocarpa C. W. Sharsmith 1983-6-8 8801 Yuba Oak Flat Rd near Union Hill 1371 Comment
  CAS-BOT-BC148328  Rosa pisocarpa Alice Eastwood 1921-5-22 10569 Yuba Los Vergils Comment
  JEPS104091  Rosa pisocarpa Lowell Ahart 2003-10-11 10623 Yuba On the w margins of a meadow, on the e side of a gravel road to the Rose Ranch, ca 100 yd w of the paved road to Scales, ca 1/2 mi south of the Rose Ranch, ca 5 mi (air) ne of Strawberry Valley, ca 7 mi (air) sw of La Porte. 1219 Comment
  JEPS95416  Rosa pisocarpa subsp. ahartii Lowell Ahart 1994-6-27 7383 Yuba 4 mi NE of Strawberry Valley (E of the logging road E of Schwartz Meadow, E side of La Porte Road) 1219 Comment
  CAS-BOT-BC146875  Rosa rubiginosa H. K. Wagnon; T. C. Fuller 1964-5-18 11987 Yuba N. of Hwy 20 to Grass Valley, 0.8 mi. e. of Smartsville Comment
  CHSC115894  Rosa rubiginosa L. P. Janeway 2015-6-30 11788 Yuba Northern High Sierra Nevada. Plumas National Forest; Weiss Hill Meadow, a large meadow 600 air-km east-southeast of junction of Weiss Hill Road and Forbestown Road; at the head of a minor northwestern tributary to New York Creek. 853 Comment
  JEPS127624  Rosa rubiginosa L. P. Janeway 2015-6-30 11788 Yuba Northern High Sierra Nevada. Plumas National Forest; Weiss Hill Meadow, a large meadow 600 air-km east-southeast of junction of Weiss Hill Road and Forbestown Road; at the head of a minor northwestern tributary to New York Creek. Forbestown 7.5' Quad. Comment
  CHSC115680  Rosa spithamea Emily Meigs Doe; L. P. Janeway 2015-4-30 26 Yuba Northern High Sierra Nevada. Plumas National Forest. Approx. 2.2 miles SW of Forbestown. About 20 ft. E of Rd 19N32, about 180 ft. N/E of its intersection with Rd. 19N59 (rd. to Bootjack Mine). Comment
  CHSC47445  Rotala indica Lowell Ahart 1977-10-3 1595 Yuba Growing on the bottom of a deep irrigation ditch, Sam Shintaffer Farm, about 2 miles north-east of Marysville. 30 Comment
  SD130473  Rotala indica Lowell Ahart 1977-8-31 Yuba 2.0 miles northeast of Marysville; Sam Shintaffer Farm. 29 Comment
  UCD103089  Rotala indica John F. Williams 1974-10-8 s.n. Yuba On Tanabe Road, NE of Marysville. Comment
  CHSC116113  Rotala ramosior Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20650 Yuba North of the spillway area, at the west side and near top of Lake Francis Dam, below the high water line of Lake Francis, about 1-1/2 miles south of Dobbins. 512 Comment
  CDA37502  Rotala ramosior L. Ahart 1999-9-17 8246 Yuba South of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer s rice dryer, about 5 miles (air) northeast of Marysville. Comment
  UCD113562  Rubus armeniacus D. H. Hartmann 1941-10-11 s.n. Yuba 15 miles east of Marysville, along U.S. #20. Comment
  UCD17692  Rubus armeniacus H. Olmo; T. S. Mallah 1953-4-8 53 90 Yuba California. Yuba County: along Highway 28 in Smartville. Comment
  JEPS118292  Rubus discolor Lowell Ahart 2011-6-7 17410 Yuba Along the edge of the dirt road, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CHSC97120  Rubus laciniatus Lowell Ahart 2007-8-7 14409 Yuba Hampshire Creek Meadow, about 20 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS94625  Rubus laciniatus Lowell Ahart 1997-8-7 7815 Yuba Peterson Ridge Rd. about 3 air mi se Challenge (w side of dirt road, on bottom of small stream, a branch of Little Oregon Creek) 762 Comment
  JEPS117304  Rubus pensilvanicus Lowell Ahart 2010-7-27 16923 Yuba Disturbed area of a log landing, about 100 yards north of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam 1219 Comment
  SEINET7706971  Rubus pensilvanicus J. Ridley 1959-4-19 22 Yuba 1 mile East of Smartville, on North side of Highway 20 Comment
  RSA1886  Rubus ursinus Carl B. Wolf 1930-10-13 1740 Yuba On Browns Valley - Smartsville Rd. 152 Comment
  UCD101666  Rumex Barbara Yungert 1974-5-8 134 Yuba Along dirt road, N of Yuba River. Sierra Foothill Field Station. Comment
  UCR197046  Rumex acetosella George K. Helmkamp, E. A. Helmkamp 2008-5-20 13470 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  CHSC108225  Rumex conglomeratus Lowell Ahart 2011-6-7 17407 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS118301  Rumex conglomeratus Lowell Ahart 2011-6-7 17407 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCD101140  Rumex crispus 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
  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
  CHSC97507  Sagina apetala Lowell Ahart 2007-5-12 13787 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  CHSC45582  Sagina saginoides Lowell Ahart 1980-8-12 2572 Yuba On a large gravel bar in Slate Creek, a little below where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  CAS-BOT-BC267070  Sagittaria F. J. Veihmeyer 1932-10-1 s.n. Yuba Sacramento Valley Comment
  JEPS118296  Salix exigua Lowell Ahart 2011-6-7 17414 Yuba Just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CAS-BOT-BC104032  Salix gooddingii C. Hart Merriam 1906-9-1 s.n. Yuba Mouth of the Yuba River, Marysville Comment
  CHSC96496  Salix laevigata Lowell Ahart 2007-4-17 13683 Yuba East of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  JEPS120943  Salix laevigata Lowell Ahart 2013-4-23 18565 Yuba Along Costa Creek, about 100 yards E of where the paved road crosses Costa Creek, about 2.5 air miles SE of the Forbestown Store. Comment
  CHSC108846  Salix lasiolepis Lowell Ahart 2012-2-28 17757 Yuba On the north side of Fruitland Road, about 13 miles northeast of Marysville. 32 Comment
  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
  JEPS122454  Salix lasiolepis L. P. Janeway 2014-6-26 11424 Yuba Northern High Sierra Nevada. Plumas National Forest; small ephemeral meadow on a flattish bench at head of ephemeral northeastern tributary to Little Oregon Creek; 1.9 air km south-southeast of Pike County Peak; 0.24 km northeast of Oregon Hill Road, 0.15 km south of Peterson Ridge Road. Quad: Challenge 7.5'. Comment
  SBBG126079  Salix lasiolepis L. Ahart 2012-2-28 17758 Yuba N side of Fruitland Rd, ca 0.5 mi E of Ramirez Rd, ca 13 mi NE of Marysville 32 Comment
  CAS-BOT-BC107372  Salix lasiolepis var. lasiolepis A. A. Heller 1905-3-21 7559 Yuba Marysville Comment
  JEPS114710  Salix lasiolepis var. lasiolepis Lowell Ahart 2008-5-14 14763 Yuba On the south side of Costa Creek, about 200 yards east of Forbestown Road, about 3 miles (air) east of Forbestown 837 Comment
  UCD162402  Salpichroa origanifolia Lemuel Osborne Jr. 1956-10-17 s.n. Yuba south of Marysville near the Feather River. Comment
  CDA20939  Salsola ryanii P. Akers 2002-9-19 RT- 10 -2 Yuba Sacramento Valley; Smartville Rd., 0.3 mi. N of Daugherty. 30 Comment
  CDA21016  Salsola tragus P. Akers 2002-9-19 RT- 008 -1 Yuba Sacramento Valley; NE corner of Hwy 65 and Rancho Rd., 3 mi. NW of Wheatland. 12 Comment
  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
  UCD112043  Salvia sonomensis Christopher Mallek 2008-5-5 IC3- 15 Yuba Indiana Creek. 617 Comment
  RSA724910  Sanguisorba minor subsp. muricata L. P. Janeway 2006-5-24 8634 Yuba N Sierra Nevada Foothills. S side of Frenchtown Road 1.2 road km NE of Marysville Road and Oregon House. 483 Comment
  SD236401  Sanguisorba minor subsp. muricata G. K. Helmkamp, E. A. Helmkamp 2008-5-20 13489 Yuba Foothills, northern Sierra Nevada Mountains: Camptonville, at the junction of Henness Pass Road and CA-49. 822 Comment
  SEINET1908443  Sanguisorba minor subsp. muricata G. K. Helmkamp, E. A. Helmkamp 2008-1 13489 Yuba Foothills, northern Sierra Nevada Mountains: Camptonville, at the junction of Henness Pass Road and CA-49 823 Comment
  UC861892  Sanguisorba minor subsp. muricata Lewis S. Rose 1940-5-28 40388 Yuba Browns Valley 60 Comment
  UCR196989  Sanguisorba minor subsp. muricata George K. Helmkamp, E. A. Helmkamp 2008-5-20 13489 Yuba Foothills, northern Sierra Nevada Mountains, Camptonville, at the junction of Henness Pass Road and CA-49 823 Comment
  UCD37874  Sanicula Beecher Crampton 1962-4-24 6294 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CHSC108207  Sanicula bipinnatifida Lowell Ahart 2011-6-7 17371 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UC566792  Sanicula bipinnatifida Herbert L. Mason 1927-5-11 3730 Yuba vicinity of Dobbins 457 Comment
  UCD127949  Sanicula bipinnatifida Barbara Yungert 1974-4-16 42 Yuba Campbell Valley, Sierra Foothill Field Station. Comment
  CHSC100722  Sanicula bipinnatifida var. flava L. P. Janeway 2008-5-11 9362 Yuba Northern High Sierra Nevada. In the northwestern head of Slapjack Creek; along Road 19N34, 1.3 road km southeast of Challenge-La Porte Road; about 1.2 km south-southeast of Woodleaf. 940 Comment
  JEPS121745  Sanicula bipinnatifida var. flava L. P. Janeway 2014-4-24 11235 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. Comment
  CHSC70779  Sanicula graveolens B. Castro; L. Gehrung 1995-6-2 572 Yuba Ca 2 air mi SE of Strawberry Valley, 0.5 to 0.8 mi N of the N Fork Yuba River, on S-trending ridge to Weed Point. Along both sides of USFS Rd 20N81. 1021 Comment
  JEPS88901  Sanicula tuberosa Lowell Ahart 1994-6-5 7302 Yuba about 3 air mi e Forbestown (on s side of Costa Creek, on e side of Forbestown Road); Costa Creek, Forbestown Road 853 Comment
  JEPS100351  Saponaria officinalis Dean W. Taylor 2001-6-21 17810 Yuba canyon of the North Fork Yuba River, near the confluence of Canyon Creek at Kelly Bar 609 Comment
  SD257166  Scandix pecten-veneris George K. Helmkamp 2014-8-17 22766 Yuba Sierra Nevada Foothills: Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mile due S of Smartsville (Smartsville 7.5'Q) 263 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
  UCD128137  Scandix pecten-veneris Barbara Yungert 1974-4-25 82 Yuba SC-14 project area, Sierra Foothill Field Station. 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
  CAS-BOT-BC111657  Schoenoplectus mucronatus A. S. Leopold 1956-7-18 s.n. Yuba 3 miles NW of Rio Oso Post Office. Comment
  JEPS104046  Scirpus setaceus Lowell Ahart 2003-7-6 10363 Yuba In meadow, e of the power line, ca 60 yd nw of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  UCD33109  Scirpus setaceus Beecher Crampton 1966-6-14 7752 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  UCD92503  Scribneria bolanderi Beecher Crampton 1957-6-5 4147 Yuba 1/2 mile west of Oregon House Post Office. Comment
  UC1125706  Scrophularia californica M. A. Elvin 1933-7-6 39 Yuba 2 1/2 mi w Bridgeport; Smartsville Quadrangle Comment
  JEPS98574  Scutellaria bolanderi subsp. bolanderi Lowell Ahart 2000-6-11 8472 Yuba 8 mi (air) S of Smartville (E side of a small wash, W of Smartville Road, about 1/8 mi SW of int. with Waldo Road) 99 Comment
  UCD125508  Scutellaria californica Beecher Crampton 1971-6-18 8739 Yuba Sierra Foothill Range Field Station. Ca. 6 miles east of Browns Valley. Comment
  UCR194895  Scutellaria californica George K. Helmkamp, E. A. Helmkamp 2007-5-26 12145 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
  RSA109836  Scutellaria californica E. K. Balls, L. W. Lenz 1956-6-20 21852 Yuba 4 mi. sw. of Camptonville, along State Hwy. 49. 976 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
  CHSC112353  Scutellaria tuberosa L. P. Janeway 2014-6-15 11224 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
  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
  CHSC113187  Selaginella hansenii Lowell Ahart 2013-11-30 19312 Yuba On a large rock, on north side of Dry Creek, just above the high water line of Collins Lake, about 300 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 360 Comment
  RSA0037130  Selaginella hansenii Lowell A. Ahart 2013-11-30 19312 Yuba On north side of Dry Creek, just above the high water line of Collins Lake, about 300 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 360 Comment
  CHSC87338  Senecio aronicoides Lowell Ahart 2004-4-27 10766 Yuba About 20 yards west of a drainage, about 40 yards south of the road, about 1/2 mile (air) southeast of Woodleaf. 931 Comment
  HSC96917  Senecio aronicoides L. Ahart 2004-4-27 10766 Yuba About 20 yrds. W of a drainage, about 40 yrds. S of the road, about 1/2 mi. (air) SE of Woodleaf 932 Comment
  JEPS106274  Senecio aronicoides Lowell Ahart 2004-4-27 10766 Yuba About 20 yards west of a drainage, about 40 yards south of the road, about 1/2 mile (air) southeast of Woodleaf 931 Comment
  CHSC116034  Senecio vulgaris Lowell Ahart 2015-11-18 20659 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
  UCD135866  Senecio vulgaris Barbara Yungert 1974-4-19 19 Yuba north of Yuba River, Sierra Foothill Field Station. Comment
  CHSC44847  Sericocarpus oregonensis Lowell Ahart 1976-10-1 1218 Yuba Along the edge of Marysville Road, near the east side of Bullards Bar Dam. 701 Comment
  CHSC95112  Sericocarpus oregonensis L. P. Janeway; Erin Brandy, David Toren 2006-9-25 8887 Yuba Northern High Sierra nevada. Plumas National Forest; along Scales Road on east side of canyon of Slate Creek, 0.7 km south of the bridge across the creek; 4.5 air km west-southwest of Strawberry Valley. 1017 Comment
  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
  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
  CHSC69439  Setaria pumila Lowell Ahart 1997-8-13 7862 Yuba On the south side of Scott Forbes Road, 1/4 mile east of the intersection of Scott Forbes Road and Peoria Road, just east of Gray Drive, about 2 1/4 miles (air) east of Browns Valley. 91 Comment
  CHSC96869  Setaria pumila Lowell Ahart 2007-6-30 14232 Yuba Near a new ditch, near and east of a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  RSA726852  Setaria pumila L. Ahart 2007-6-30 14232 Yuba About 13 miles (air) northeast of Marysville. 29 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
  HSC100773  Setaria viridis Lowell Ahart 2007-5-14 13844 Yuba 13 (air) mi. NE of Marysville, ~30 yd. N of Fruitland Rd., ~20 yd. S of the power tower and 20 yd. NE of the gate. 36 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
  JEPS113725  Sherardia arvensis Lowell Ahart 2007-5-12 13814 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS118303  Sherardia arvensis Lowell Ahart 2011-6-7 17413 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCD81498  Sherardia arvensis Christopher Michael Bronny 2009-4-1 10 Yuba Oat Hills' area of Sierra Nevada foothills. 146 Comment
  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
  UCD82076  Sherardia arvensis Robin McMaster 1973-4-7 227 Yuba Browns Valley. 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
  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-BC278071  Sidalcea gigantea Steven R. Hill; et al. 2010-7-17 38555 Yuba 950 feet northeast of Travis Saddle along La Porte Road. 13.6 kilometers north-northwest of Camptonville. Just SW of Strawberry Valley 1100 Comment
  JEPS111465  Sidalcea gigantea G. L. Clifton 1996-8-17 35038 Yuba At Travis Saddle along La Porte Road Comment
Read comments 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
  SEINET7085263  Sidalcea gigantea G. L. Clifton 1996-8-17 35038 Yuba At Travis Saddle along La Porte Road, Strawberry Valley, 39? deg. 33'37"N, 121? deg. 07'07"W. 1097 Comment
  SD130448  Sidalcea glaucescens Lowell Ahart 1980-7-25 2485 Yuba Near Slate Creek. 1200 Comment
  UCD80452  Sidalcea hartwegii CNPS SN Foothill Team 2005-6-1 SNFN 0173 b Yuba CDFG Daugherty Hill Wildlife Area, in the 'C' shaped parcel located to the east of the Daugherty Hill Unit. 623 Comment
  UCD116752  Sidalcea hartwegii Barbara Yungert 1974-5-4 113 Yuba along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UCD116753  Sidalcea hartwegii Barbara Yungert 1974-5-15 156 Yuba along Forbes Road 3, near fence of F 1-14 project area, Sierra Foothill Field Station. Comment
  CHSC97566  Sidalcea hirsuta Lowell Ahart 2007-5-12 13799 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CDA36506  Sidalcea malviflora subsp. asprella G. D. Barbe, T. C. Fuller 1982-6-14 3672 Yuba 0.3 mile east of Challenge, 3.2 miles southwest of Woodleaf. Comment
  RSA87486  Sidalcea malviflora subsp. asprella C. L. Hitchcock 1952-5-28 19539 Yuba 1/2 mile S. E. of Challenge, Comment
  RSA477854  Silene californica J. E. Cramsie 1932-5-1 s.n. Yuba Smartville. 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
  UCD98717  Silene gallica Barbara Yungert 1974-5-7 128 Yuba Forbes Hill; F 1-14 project area, Sierra Foothill Field Station. Comment
  UCD98982  Silene laciniata subsp. californica R. O. Hanes 1991-5-21 17 Yuba Road 18N77 or 121. 579 Comment
  CAS-BOT-BC74926  Sinapis arvensis Lowell Ahart 1974-5-18 s.n. Yuba About 5 miles west of Loma Rica. 300 Comment
  JEPS113528  Sisymbrium officinale Lowell Ahart 2007-5-14 13858 Yuba Dry bare red soil in the center of a dirt road, 10 yards south of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville 29 Comment
  UC1126806  Sisymbrium officinale M. A. Elvin 1933-6-7 22 Yuba 3 mi se of O'Brien's Ranch 60 Comment
  CAS-BOT-BC75301  Sisymbrium officinale Gordon H. True 1963-4-17 1151 Yuba About 3.5 miles south of Smartville, on Beale Aif Force Base road. 213 Comment
  UCD115754  Sisymbrium officinale Barbara Yungert 1974-5-23 179 Yuba gate between Road 2 and Road 3, Fl-24 project area, Sierra Foothill Field Station. Comment
  UCD81494  Sisyrinchium bellum Christopher Michael Bronny 2009-4-1 6 Yuba Oat Hills' area of Sierra Nevada foothills. 217 Comment
  CHSC76111  Solanum americanum Lowell Ahart 1999-9-5 8200 Yuba On the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 Comment
  JEPS95897  Solanum americanum Lowell Ahart 1999-9-5 8200 Yuba on the disturbed area on the south side of Woodruff Lane; just west of Kimball Lane; about 5 miles (air) northeast of Marysville 24 Comment
  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
  CDA36460  Solanum elaeagnifolium Kevin Roush 2011-8-8 PDR# 1616478 Yuba Marysville; Biz Johnson Dr. under 10th St. Bridge. 0 Comment
  SJSU4467  Solanum parishii J. B. Willis Jr. 1969-4-27 80 Yuba Timbuctoo Rd 0.25 mi off State Rte 20, 19 mi E of Marysville Comment
  UCD126977  Solanum parishii Kathleen Keliher 1975-4-19 65 Yuba 70 meters below Englebright Dam, 20 meters above Yuba River, Sierra Foothill Field Station. 152 Comment
  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
  CHSC97653  Soliva sessilis Lowell Ahart 2007-5-12 13776 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS113478  Soliva sessilis Lowell Ahart 2007-5-12 13776 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  CAS-BOT-BC365807  Soliva sessilis Peter H. Raven 1954-4-17 6624 Yuba Marysville Comment
  HSC10992  Sorghum halepense T. F. Newman 1965-9-9 6569 Yuba Helder Ranch, 11 mi. N of Marysville on Hwy. 70 Comment
  UCR231341  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 65 Comment
  CHSC110463  Sphenosciadium capitellatum L. P. Janeway 2013-7-24 11186 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow near headwaters of a northeastern tributary to Hampshire Creek, 1.8 km north of North Yuba River and 1.0 km east-northeast of Hampshire Creek Meadow. 1102 Comment
  CHSC78351  Spiranthes porrifolia Lowell Ahart 2000-6-11 8473 Yuba 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
  CHSC84241  Spiranthes porrifolia Lowell Ahart 2003-7-6 10357 Yuba Near and in a meadow, east of the power line, about 60 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  SEINET3163885  Spraguea umbellata L. S. Rose 1939-6-6 39230 Yuba 2 mi. ne. of Clipper Mills 1173 Comment
  UCD125800  Stachys albens Beecher Crampton 1970-6-15 8617 Yuba UC Sierra Foothill Range Field Station. Around 6 miles east Brown's Valley. Comment
  JEPS113685  Stellaria borealis subsp. sitchana Lowell Ahart 2007-8-7 14408 Yuba Hampshire Creek Meadow, about 20 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. On the east side of a small pond, on the west side of the dirt road 1021 Comment