Search Results — 2000 specimen records retrieved (1529 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC30406  Achillea millefolium H. H. Keifer 1928-5-2 s.n. Yuba North Peak, Marysville Buttes Comment
  UCR197051  Achillea millefolium George K. Helmkamp, E. A. Helmkamp 2008-5-20 13475 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  UCD32531  Achnatherum lemmonii Beecher Crampton 1954-5-10 1847 Yuba Yuba County, 6 miles south of Camptonville, along highway 49, north slope near the middle of the Yuba River. Comment
  JEPS100273  Achnatherum lemmonii var. lemmonii Dean W. Taylor 2001-5-9 17646 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  CHSC44596  Achnatherum occidentale subsp. californicum Lowell Ahart 1979-6-25 1936 Yuba About 1 mile south of Challenge. 640 Comment
  SEINET7072723  Achyrachaena mollis A. G. Vestal 1963-5-7 s.n. Yuba About 3.5 miles north of Wheatland on Jasper Lane. UTM Zone 10, 636590E, 4323573mN. Coordinate datum: NAD 27. Comment
  UCD37846  Achyrachaena mollis Beecher Crampton 1962-4-24 6245 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CAS-BOT-BC29940  Achyrachaena mollis Gordon H. True 1964-4-17 1161 Yuba About 6.5 miles south of Smartville, on Beale A.F.B. road 144 Comment
  UCD104579  Acmispon R. Osborne 1987-9-24 s.n. Yuba H.H. Ovantero Ranch, Dist. 10. Comment
  SBBG3381  Acmispon americanus H. and M. Dearing 1938-6-20 2043 Yuba near Yuba City Comment
  CHSC113173  Acmispon americanus var. americanus Lowell Ahart 2013-11-30 19313 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
  CAS-BOT-BC204862  Acmispon argophyllus var. fremontii Lewis S. Rose 1939-6-7 39243 Yuba N. Fork of Feather River, 3 mi. s. of Pulga 609 Comment
  CHSC108204  Acmispon brachycarpus Lowell Ahart 2011-6-7 17392 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCD104099  Acmispon brachycarpus Barbara Yungert 1974-4-4 4 Yuba Along four wheel drive road, north of Yuba River, Sierra Foothill Field Station. Comment
  UCD104173  Acmispon grandiflorus Kathleen Keliher 1975-5-30 123 Yuba 200 yard up roadcut along Oregon Hill Road, 5 miles east of La Porte Road. 701 Comment
  CHSC10636  Acmispon grandiflorus var. macranthus Lowell Ahart 1968-3-3 Yuba Near Bullard's Bar. 914 Comment
  CHSC112368  Acmispon grandiflorus var. macranthus L. P. Janeway 2014-4-24 11233 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  JEPS121744  Acmispon grandiflorus var. macranthus L. P. Janeway 2014-4-24 11233 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. Comment
  CAS-BOT-BC9075  Aegilops triuncialis John Thomas Howell; Gordon H. True 1971-5-26 47613 Yuba About 8 miles east of Marysville 30 Comment
  CDA21315  Aegilops triuncialis M. Stelmok 2007-7-27 PDR 1305558 Yuba Sacramento Valley; Along Marysville Rd at Tonopah Trail in Brown's Valley. 137 Comment
  UCD51557  Aegilops triuncialis Beecher Crampton 1965-6-17 7366 Yuba 2 miles s.e. Loma Rica, Browns Valley Road. Comment
  CAS-BOT-BC206889  Aesculus californica Alice Eastwood 1921-5-22 10542 Yuba Los Vergils 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
  UCD33594  Agoseris grandiflora Beecher Crampton 1970-6-15 8618 Yuba UC Sierra Foothill Range Field Station, ca. 6 miles east of Brown's Valley. Comment
  CAS-BOT-BC15448  Agoseris grandiflora var. grandiflora Lowell Ahart 1979-6-25 s.n. Yuba 1 mile south of Challenge 700 Comment
  CAS-BOT-BC15346  Agoseris heterophylla Alice Eastwood 1921-5-22 10511 Yuba Los Verjeles Comment
  UCD128615  Agoseris heterophylla Barbara Yungert 1974-4-25 83 Yuba along four wheel drive road, lower SC-14 project area, Sierra Foothill Field Station. Comment
  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
  CHSC25494  Agrimonia gryposepala L. Ahart 1977-7-31 1507 Yuba Found growing on dry soil along the edge of a small stream, ca. 1 mi s of Challenge. 700 Comment
  CHSC97118  Agrimonia gryposepala Lowell Ahart 2007-8-7 14424 Yuba West side of an open meadow, on the southeast part of Hampshire Creek Meadow, about 50 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  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
  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
  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
  UCD33115  Agrostis exarata Beecher Crampton 1966-6-14 7760 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  UCD52130  Agrostis exarata Beecher Crampton 1957-6-5 4137 Yuba Stanfield Hill. Comment
  UCD52285  Agrostis exarata Beecher Crampton 1964-10-22 7220 Yuba 3 miles east of Brown's Valley, Dry Creek. 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
  UCD53049  Agrostis microphylla Robert E. Preston 1995-5-10 867 Yuba N edge of Beale Air Force Base, 0.4 mi. e. of jct Smartsville Road and Doolittle Drive. 41 Comment
  CHSC116336  Agrostis scabra Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-19 20679 Yuba Spillway area, at the west side and near the top of Lake Francis Dam, below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  JEPS124262  Agrostis scabra Lowell Ahart 2015-11-19 20679 Yuba Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CDA28150  Agrostis stolonifera L. Ahart 2003-7-6 10366 Yuba East of the power line, about 50 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. Comment
  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
  JEPS95534  Agrostis thurberiana Lowell Ahart 1994-6-27 7394 Yuba 4 mi NE of Strawberry Valley (N of the county dirt road from La Porte Road to the Poverty Hill Mine, E of Schwartz Meadow) 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
  UCR234208  Aira caryophyllea George K. Helmkamp, E. A. Helmkamp 2011-4-10 17166 Yuba Sacramento Valley, along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland 44 Comment
  SEINET5335999  Aira caryophyllea C. Aarstad 1979-4-28 s.n. Yuba at junct. of Rt. 20 and N Fork of Browns Valley 183 Comment
  SEINET7294184 Image available Aira caryophyllea var. capillaris Beecher Crampton 1957-1 4153 Yuba 1.3 miles east of Oregon House Store Comment
  UCD55787  Aira caryophyllea var. capillaris Beecher Crampton 1965-5-11 7317 Yuba 2.5 miles southwest of Brown's Valley. Comment
  UCD55798  Aira caryophyllea var. capillaris Beecher Crampton 1957-6-5 4153 Yuba 1.3 miles east of Oregon House Store. Comment
  CAS-BOT-BC138349  Aira caryophyllea var. caryophyllea Gordon H. True 1963-4-17 1177 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Highway. 30 Comment
  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
  JEPS104656  Alisma lanceolatum Lowell Ahart 2003-7-17 10415 Yuba On the bottom of a small stream, on the w side of Smartville Rd, ca 2 mi n of the intersection of Waldo Rd and Smartville Rd, ca 6 mi (air) south of Smartville. 129 Comment
  SEINET3449084  Alisma lanceolatum Unknown 2003-7-17 10415 Yuba Smartville, Smartville, about 6 air miles south, west side of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road 120 Comment
  SEINET3449086  Alisma plantago-aquatica Unknown 2003-7-17 10416 Yuba Smartville, Smartville, about 6 air miles south, west side of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road 120 Comment
  CHSC84213  Alisma triviale Lowell Ahart 2003-7-17 10416 Yuba On the bottom of a stream, on the west side of Smartville road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 129 Comment
  UCD22594  Allium L. K. Mann 1957-4-19 s.n. Yuba At east edge of top of dam across north fork of Yuba River, between Dobbins and North San Juan. Comment
  JEPS13879  Allium amplectens Rimo Bacigalupi with L. R. Heckard, R. D. Sanderson, and G. Bacigalupi 1952-6-20 3758 Yuba 1.5 mi due s Brownsville (along road from Brownsville to Oregon House, just n of Washington Mill) 609 Comment
  CAS-BOT-BC462249  Allium amplectens Alice Eastwood 1930-4-13 17934 Yuba near Marysville Comment
  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
  CHSC10818  Allium membranaceum Lowell Ahart 1967-5-15 Yuba Near Bullard bar. 914 Comment
  UC1299738  Allium membranaceum Freed W. Hoffman 1949-5-14 2809 Yuba at e abutment of dam, Bullards Bar Dam and Reservoir Bullards Bar Dam and Reservoir Comment
  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
  UCD39042  Allium peninsulare Beecher Crampton 1962-4-24 6319 Yuba 5 miles east Brown's Valley, Sierra Foothill Range Field Station. Comment
  CHSC61355  Allium sanbornii var. sanbornii Lowell Ahart 1993-8-8 7155 Yuba On the south side of La Porte Road, about 200 yards west of the Brownsville Grange, about 1 mile south-west of La Porte Road and Willow Glen Road intersection. 609 Comment
  CHSC69157  Allium sanbornii var. sanbornii Lowell Ahart 1997-8-7 7835 A Yuba Northwest of the bridge across Indian Creek, about 3 miles (air) east of Challenge. 762 Comment
  UCD138625  Allium sanbornii var. sanbornii L. K. Mann 1957-4-19 s.n. Yuba along road from Dobbins to Camptonville. About 1 mile past Dobbins. Comment
  UCD143722  Allium serra L. K. Mann 1958-4-20 s.n. Yuba bulbs 3 miles north of Rumsey, Califronia on road 16 toward Clear Lake. Mostly on right side going north. Comment
  UCD143723  Allium serra L. K. Mann 1958-4-20 s.n. Yuba bulbs 3 miles north of Rumsey, Califronia on road 16 toward Clear Lake. Mostly on right side going north. Comment
  CHSC97658  Alopecurus saccatus Lowell Ahart 2007-5-12 13821 Yuba Bottom of a vernal pool, about 100 feet northeast of a culvert, about 80 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  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
  CHSC97568  Amaranthus hybridus Lowell Ahart 2007-5-14 13841 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 20 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS113489  Amaranthus hybridus Lowell Ahart 2007-6-30 14239 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  RSA726415  Amaranthus hybridus L. Ahart 2007-5-14 13841 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  UCR201766  Amaranthus powellii George K. Helmkamp, E. A. Helmkamp 2008-10-6 14209 Yuba Sacramento Valley, Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  CHSC97744  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
  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
  JEPS98996  Ambrosia psilostachya Lowell Ahart 2001-11-2 9410 Yuba Camp Far West Reservoir, about 1/8 mile NE of the dam, about 9 miles (air) SE of Wheatland. 91 Comment
  RSA727527  Ambrosia psilostachya L. Ahart 2007-11-8 14586 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, abotu 6 miles (air) northeast of Sheridan. 91 Comment
  RSA88085  Ambrosia psilostachya J. T. Howell 1951-8-21 28288 Yuba Near Camptonville 762 Comment
  CHSC116310  Ammannia coccinea Lowell Ahart 2015-11-19 20684 Yuba 100 yards or more north of the spillway area, below the high water line, west side of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  CHSC76282  Ammannia coccinea Lowell Ahart 1999-9-17 8244 Yuba On the margins of a rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice rice dryer, about 5miles (air) northeast of Marysville. 24 Comment
  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
  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
  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
  JEPS113094  Amsinckia menziesii var. menziesii Lowell Ahart 2007-4-17 13692 Yuba On the north side of the poor dirt fireguard, about 50 yards northwest of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  UCR231311  Amsinckia retrorsa George K. Helmkamp, E. A. Helmkamp 2011-5-6 17190 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.9 mile west of the junction at Camp Far West Reservoir 65 Comment
  CHSC90336  Anagallis arvensis Lowell Ahart 2005-3-11 11599 Yuba On the west side of the poor dirt road, about 1/2 mile west of Marysville Road, about 1/4 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/4 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 344 Comment
  HSC5271  Andropogon glomeratus C. B. Wolf 1927-11-5 1436 Yuba Road to Brown's Valley, 8 mi. from Marysville Comment
  RSA88333  Andropogon virginicus G. H. True 1951-6-6 s.n. Yuba meadows near Parks Bar Comment
  UCD56093  Andropogon virginicus R. M. Love 1952-10-31 s.n. Yuba 13 miles east of Marysville. Comment
  CAS-BOT-BC137782  Andropogon virginicus var. virginicus Gordon H. True 1951-1-6 s.n. Yuba Near Parks Bar. Comment
  CAS-BOT-BC137784  Andropogon virginicus var. virginicus William Anderson 1966-11-25 s.n. Yuba Sierra Nevada. Loma Rica. 121 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
  CHSC116300  Andropogon virginicus var. virginicus Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20643 Yuba On the sides of the spillway area, at the west side and near the top of Lake Francis Dam, about 1 1/2 miles south of Dobbins. 512 Comment
  JEPS120985  Andropogon virginicus var. virginicus Lowell Ahart 2013-11-30 19307 Yuba on N side of Dry Creek, below the high water line of Collins Lake, about 300 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  CHSC45502  Anemone oregana Lowell Ahart 1972-4-28 89 Yuba Near the West Branch Brushy Creek, about 10 miles by road east of Strawberry Valley. 1219 Comment
  CHSC69127  Angelica breweri Lowell Ahart 1997-8-7 7836 Yuba On east side of the dirt road, about 2 miles (air) southeast of Woodleaf, about 3 miles (air) northeast of Challenge. 853 Comment
  JEPS94518  Angelica breweri Lowell Ahart 1997-8-7 7836 Yuba about 3 air mi ne of Challenge (abut 2 air mi se of Woodleaf, on e side of the dirt road) 853 Comment
  JEPS104293  Anisocarpus madioides Lowell Ahart 2003-7-2 10343 Yuba About 200 yd south of the 4-H Camp, on the w side of Oregon Hill Rd, ca 1/2 mi n of Marysville Rd, ca 2 mi (air) ne of Dobbins. 815 Comment
  CDA19127  Anredera cordifolia L. Dillard 2001-6-12 PDR 1197437 Yuba Sacramento Valley; Canal St., Olivehurst. 0 Comment
  JEPS87729  Anthoxanthum odoratum Lowell Ahart 1994-6-27 7391 Yuba about 4 mi ne of Strawberry Valley (near s side of Schwartz Meadow, on e side of La Porte Road); Schwartz Meadow, La Porte Road 1219 Comment
  UCD33107  Anthoxanthum odoratum Beecher Crampton 1966-6-14 7746 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  JEPS113288  Anthriscus caucalis Lowell Ahart 2007-4-17 13679 Yuba East of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  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
  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
  RSA716505  Aphanes occidentalis L. Ahart 2005-3-11 11598 Yuba W side of the poor dirt road, 1/2 miles W of Marysville Road, 1/2 miles W of Marysville Road, 1/4 mile N oa Parking area 3, Daugherty Hill Wildlife area, Donovan Hill Management, 1/4 mile N of Loma Rica Road, 5 miles air NE of Loma Rica 345 Comment
  CHSC87344  Aphyllon purpureum 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
  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
  CDA39730  Apocynum cannabinum H. A. Crane 1929-7-12 s.n. Yuba 0 Comment
  CHSC46476  Aralia californica Lowell Ahart 1980-7-25 2483 Yuba Edges of a small stream that flows into Slate Creek, near the debris dam, 1/4 mile north-east of the two steel bridges across Slate Creek, about 6 miles north-east of North Star along La Porte Road. 1097 Comment
  CHSC69130  Aralia californica Lowell Ahart 1997-8-7 7819 Yuba Bottom and sides of a small stream, a branch of Little Oregon Creek, on the east side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  CAS-BOT-BC128687  Arbutus menziesii Alice Eastwood 1918-4-7 6799 Yuba Camptonville 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-BC38552  Arctostaphylos mewukka subsp. truei Walter Knight; Irja Knight; Tiffany Knight 1988-7-24 6298 Yuba Kellogg Flat near Woodleaf. On La Porte Rd. 914 Comment
  SEINET11990987  Arctostaphylos truei R. Raiche, Zadnik, K.; Roberts, W. 1983-1 30116 Yuba Knox Road, Challenge Experimental Forest Comment
  JEPS113808  Aristida oligantha Lowell Ahart 2007-6-22 14217 Yuba Bottom of a new ditch, near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  POM266630  Aristida oligantha J. C. Roos 1939-7-3 1517 Yuba plains near Marysville Comment
  UCD56441  Aristida oligantha Beecher Crampton 1957-6-5 4123 Yuba 10 miles E of Marysville. Along State Hwy. 20. Comment
  UCR25611  Aristida oligantha John C. Roos 1939-7-3 1517 Yuba Marysville Comment
  LA76973  Aristolochia californica C. B. Adams; 1930-10-13 1741 Yuba Small creek flowing into Yuba River on Browns Valley to Smartsville Road 152 Comment
  RSA1885  Aristolochia californica C. B. Wolf 1930-10-13 1001 Yuba On Browns Valley - Smartsville Rd. 152 Comment
  CDA24668  Armoracia rusticana A. Worledge 1944-1 Yuba 0 Comment
  CDA24669  Armoracia rusticana A. Worledge 1944-1 Yuba 0 Comment
  CHSC63206  Arrhenatherum elatius Lowell Ahart 1994-6-27 7392 Yuba North-west side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  CHSC113199  Artemisia douglasiana Lowell Ahart 2013-11-30 19314 Yuba On the sides of a wash, about 20 yards north of Dry Creek, just above the high water line of Collins Lake, about 350 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 361 Comment
  JEPS115019  Artemisia douglasiana Lowell Ahart 2007-11-1 14543 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  UC1119535  Artemisia douglasiana N. French 1933-6-22 82 Yuba 2 mi w Dobbin; Smartsville Quadrangle Comment
  SEINET12347215  Asclepias cordifolia F. H. Utech 1990-6-5 90 -860 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  CDA39841  Asclepias fascicularis H. Crane 1932-4-2 s.n. Yuba Marysville. 0 Comment
  CHSC43319  Asclepias speciosa Lowell Ahart 1979-6-25 1934 Yuba Near the edge of LaPorte Road, about 2 miles south-west of Brownsville. 365 Comment
  CHSC87927  Aspidotis densa Lowell Ahart 2004-5-21 10937 Yuba About 20 yards north of a drainage, about 50 yards east of the road, about 1/2 mile (air) southeast of Woodleaf. 931 Comment
  RSA507792  Aster oregonensis J. C. Semple, S. Heard 1986-8-13 8413 Yuba C. 9000 LaPorte Rd., near Brownsville. 1.3 km west of New York Flat Road. Comment
  CHSC69131  Aster radulinus Lowell Ahart 1997-8-7 7829 Yuba Peterson Ridge Road, about 3 miles (air) east of Challenge. 762 Comment
  SEINET10904921  Aster radulinus Lowell Ahart, Peter Ahart 1983-8-10 Ahart 4276 Yuba On yellowish-red rocky soil, ca. 2 mi e of Clipper Mills. Yellow Pine Forest; 1000 m. 1000 Comment
  UCD104829  Astragalus gambelianus Barbara Yungert 1974-4-22 75 Yuba Sierra Foothill Field Station. West of four wheel drive road, Jack-ass Joe Area, F-2 project area. Comment
  CHSC69136  Asyneuma prenanthoides Lowell Ahart 1997-8-7 7816 Yuba Near a branch of Little Oregon Creek, on the west side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  RSA726338  Athyrium filix-femina subsp. cyclosorum L. Ahart 2007-8-7 14410 Yuba Hampshire Creek Meadow, about 80 yards east of the dirt road, about 1 mile east of Clipper Mills. 1021 Comment
  JEPS107422  Athysanus pusillus Lowell Ahart 2005-2-28 11563 Yuba West of a poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica 400 Comment
  RSA715712  Athysanus pusillus L. Ahart 2005-2-28 11563 Yuba West of a poor dirt road, about 0.5 mile W of Marysville Road, about 0.5 mile N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 0.5 mile N of Loma Rica Road, about 5 miles (air) NE of Loma Rica. 400 Comment
  SEINET7075556  Athysanus pusillus A. G. Vestal 1955-4-4 s.n. Yuba About 9 miles northeast of Marysville on Route 20. 39? deg. 13' 38" North Latitude, -121? deg. 24' 51" West Longitude. UTM Zone 10, 636890mE, 4342994mN. (NAD 27)]. [Coordinate Datum: WGS84/NAD83]. Comment
  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
  CHSC112954  Baccharis pilularis subsp. consanguinea L. P. Janeway 2014-6-6 11580 Yuba Northern High Sierra Nevada. Plumas National Forest; small ephemeral meadow on a flattish bench at head of ephemeral northeastern tributary to Little Oregon Creek; 1.9 air km south-southeast of Pike County Peak; 0.24 km northeast of Oregon Hill Road, 0.15 km south of Peterson Ridge Road. 852 Comment
  JEPS122456  Baccharis pilularis subsp. consanguinea L. P. Janeway 2014-11-6 11580 Yuba Northern High Sierra Nevada. Plumas National Forest; small ephemeral meadow on a flattish bench at head of ephemeral northeastern tributary to Little Oregon Creek; 1.9 air km south-southeast of Pike County Peak; 0.24 km northeast of Oregon Hill Road, 0.15 km south of Peterson Ridge Road. Quad: Challenge 7.5'. Comment
  CAS-BOT-BC16371  Barbarea orthoceras Lowell Ahart 1979-6-4 s.n. Yuba Along the road at Slate Creek. 1000 Comment
  CHSC97459  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
  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
  JEPS124267  Bidens frondosa Lowell Ahart 2015-11-19 20671 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  RSA726441  Bidens frondosa L. Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14497 Yuba About 1 mile (air) east of Clipper Mills. 1016 Comment
  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
  CAS-BOT-BC418425  Boykinia occidentalis Rimo Bacigalupi 1927-7-2 1590 Yuba Downscille Road almost 8 miles northeast of Comptonville 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
  JEPS118354  Brachypodium distachyon Lowell Ahart 2011-6-7 17422 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCD56999  Brachypodium distachyon Beecher Crampton 1971-6-18 8741 Yuba Sierra Foothill Range Field Station. Ca. 6.5 miles E of Browns Valley. Comment
  CAS-BOT-BC186700  Brassicaceae Lowell Ahart 1974-5-18 s.n. Yuba About 5 miles west of Loma Rica 300 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
  CHSC97655  Briza maxima Lowell Ahart 2007-5-14 13863 Yuba Bottom of a swale, about 250 yards west of the power tower, power tower is about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  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
  UCR232230  Briza maxima George K. Helmkamp, E. A. Helmkamp 2011-5-6 17213 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
  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
  JEPS113727  Briza minor Lowell Ahart 2007-5-12 13822 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  SEINET4344868  Briza minor A. Tiehm 1975-1 644 Yuba U.C. Sierra Foothill Field station 274 Comment
  SEINET4344873  Briza minor C. Aarstad 1979-4-28 s.n. Yuba at junct. of Rt. 20 and N. fork of Yuba River in Browns Valley. 183 Comment
  UCD139146  Brodiaea R. E. Preston 1996-5-22 936 Yuba Beale Air Force Base. 30 Comment
  UCD77152  Brodiaea appendiculata Robert E. Preston 2005-4-20 2337 Yuba Olivehurst, 0.2 mi S of jct Hwy 70 and McGowan Parkway 17 Comment
  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
  UCD77189  Brodiaea coronaria Robert E. Preston 2004-4-25 2226 Yuba Ca. 6.25 mi NE of Wheatland, along Camp Far West Rd. 99 Comment
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Jun 17 2014
  CAS-BOT-BC484283  Brodiaea elegans subsp. elegans Martin Georges 1953-7-19 s.n. Yuba Lake Vera, North Fork, Yuba River 96 Comment
  UCD139169  Brodiaea elegans subsp. elegans Barbara Yungert 1974-5-13 146 Yuba east side of road between the old headquarters and the river, Sierra Foothill Field Station. Comment
  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
  CHSC113648  Brodiaea minor L. P. Janeway 2014-6-24 11414 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 480 m northeast of Marysville Road. 756 Comment
  CHSC22961  Brodiaea minor Robert A. Schlising 1963-5-3 2546 Yuba 29.4 miles west of Nevada City along Hwy 20. Comment
  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
  CAS-BOT-BC484514  Brodiaea minor Gordon H. True 1963-4-17 1170 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Hwy. 30 Comment
  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
  UCD139151  Brodiaea nana Louis K. Mann 1957-4-21 s.n. Yuba beside State Highway 20, around 3 miles northeast of Marysville. Comment
  CAS-BOT-BC484596  Brodiaea purdyi Ella Dales Cantelow 1940-5-12 3942 Yuba 6.7 mi. e. of Marysville on Hwy 20 to Grass Valley Comment
  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
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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
  UC1133870  Brodiaea sierrae M. A. Elvin 1933-7-14 50 Yuba 2 mi w Doblin; Smartsville Quadrangle 762 Comment
  SEINET7067128  Brodiaea stellaris A. G. Vestal 1947-4-29 s.n. Yuba About 5 miles west of Smartville on the Smartville Road. Coordinate datum: NAD27. UTM Zone 10, 640771mE, 4339031mN. Comment
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Jul 17 2018
  CAS-BOT-BC144293  Bromus arizonicus H. N. Bolander 1860-1-1 1546 Yuba Marsyville. Comment
  UCD32529  Bromus carinatus Beecher Crampton 1954-5-10 1845 Yuba Yuba County, 6 miles south of Camptonville, along highway 49, north slope near the middle of the Yuba River. Comment
  UCD57974  Bromus carinatus Beecher Crampton 1957-6-5 4152 Yuba Opposite Oregon House Store. Comment
  UCD58207  Bromus carinatus Beecher Crampton 1954-5-10 1845 Yuba 6 miles south of Camptonville. Along Hwy. 49. North slope of the middle Yuba River. Comment
  UCR118899  Bromus carinatus Beecher Crampton 1954-5-10 1845 Yuba Central Sierra Nevada foothills, 6 miles south of Camptonville, along Hwy. 49 457 Comment
  SEINET943621  Bromus carinatus var. carinatus Carl B. Wolf 1937-1 8635 Yuba Sierra Nevada Foothills, 2 7/10 miles below Stanfield Hill on road to Browns Valley 182 Comment
  CHSC37192  Bromus carinatus var. marginatus L. Ahart 1982-7-4 3661 Yuba Ca. 1/2 mi e of Brownsville, along LaPorte Rd. 700 Comment
  CHSC44547  Bromus carinatus var. marginatus Lowell Ahart 1979-6-25 1935 Yuba On the hill north of Brownsville, Brownsville. 640 Comment
  CHSC63306  Bromus commutatus Lowell Ahart 1994-6-5 7303 Yuba On the south side of Costa Creek, on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  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
  UCD58444  Bromus commutatus Beecher Crampton 1957-6-5 4146 Yuba 1/2 mile W of Oregon House Post Office. Comment
  UCD59483  Bromus diandrus Beecher Crampton 1962-4-24 6246 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCD59506  Bromus diandrus Beecher Crampton 1957-6-5 4150 Yuba 1/2 mile W of Oregon House Post Office. Comment
  UCR258221  Bromus diandrus George K. Helmkamp, Amy Barnes 2013-3-28 20259 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  SEINET4391031  Bromus diandrus D. E. Selleck 1979-4-28 s.n. Yuba Sierra Fielid Station-UC Davis. Comment
  CAS-BOT-BC155483  Bromus hordeaceus Gordon H. True 1968-5-6 4230 Yuba Near Gales Orchard ca. 6 miles east of Camptonville. 1249 Comment
  CHSC107156  Bromus hordeaceus L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10374 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants scattered throughout the meadow. 750 Comment
  JEPS118732  Bromus hordeaceus L. P. Janeway and 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. French Corral 7.5' quad. Comment
  SEINET3439301 Image available Bromus hordeaceus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17204 Yuba East edge of Sacramento Valley: junction of Camp Far West Road and Spenceville Road, 5.4 mi NE of Wheatland Comment
  UCD58825  Bromus hordeaceus Beecher Crampton 1962-4-24 6244 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCR230632  Bromus hordeaceus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17201 Yuba East edge of Sacramento Valley, Spenceville Road, 4.2 miles northwest of Wheatland 55 Comment
  UCR231331  Bromus hordeaceus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17186 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.3 mile north of the junction with Hokan Lane, vicinity of Camp Far West Reservoir 105 Comment
  JEPS124414  Bromus japonicus Lowell Ahart, Susan Kephart, Jim Kephart 2015-6-4 20198 Yuba About 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. Comment
  CAS-BOT-BC162367  Bromus madritensis Peter H. Raven 1953-5-9 s.n. Yuba 3.7 miles from Browns Valley on Challenge Road. Comment
  UCD58967  Bromus madritensis Beecher Crampton 1965-6-17 7372 Yuba Ca. 3/4 mile north of Stanfield Hill. Willow Glen Creek. 396 Comment
  UCD59028  Bromus madritensis Beecher Crampton 1957-6-5 4140 Yuba 1 mile east of Stanfield Hill. 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
  CHSC107151  Bromus racemosus L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10375 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants scattered in an area of slight water sheet flow. 750 Comment
  JEPS118724  Bromus racemosus L. P. Janeway and Melanie Williams, Tim Hanson 2011-6-9 10375 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. French Corral 7.5' quad. Comment
  UCD59722  Bromus sterilis Beecher Crampton 1966-6-14 7744 Yuba 1 mile east of Brownsville. 731 Comment
  JEPS100272  Bromus tectorum Dean W. Taylor 2001-5-9 17645 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  CHSC90486  Calandrinia ciliata Lowell Ahart 2005-3-11 11620 Yuba In the center of the poor dirt road, 100 yards west of a large rock outcrop, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 386 Comment
  CHSC97446  Callitriche heterophylla var. bolanderi Lowell Ahart 2007-5-14 13884 Yuba Wet bare soil, on the bottom of a swale, moisture is from a leaking canal, about 250 yards west of the power tower. Power tower is about 30 yards north of of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  CHSC116033  Callitriche heterophylla var. heterophylla Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20649 Yuba North of the spillway area, at the west side and near top of Lake Francis Dam, below the high water line of Lake Francis, about 1-1/2 miles south of Dobbins. 512 Comment
  CHSC14019  Calochortus albus J. A. Roberts 1973-4-12 12 Yuba 20 mi n of Hwy 20, 10 mi e of Marysville. 457 Comment
  CHSC59834  Calochortus albus Richard Nichols 1980-4-26 20 Yuba Along Peoria Rd., ca. 0.5 mi n of Jct with Sicard Flat Rd., ca. 2 mi ne of Hwy 20, and ca. 5 mi nw of Smartville. 243 Comment
  CAS-BOT-BC487491  Calochortus albus Barbara T. Keller 1975-6-10 1516 Yuba Willow Glen Rd. from Stanfield Hill to Brownsville, about 11.5 miles north of junction with Marysville Road Comment
  UC477576  Calochortus coeruleus L. S. Smith May 1931 Yuba Camptonville Dist. Tahoe National Forest Comment
  CAS-BOT-BC487812  Calochortus coeruleus L. S. Smith 1931-5-1 s.n. Yuba Near Camptonville, Rebel Ridge 548 Comment
  SEINET7072987  Calochortus luteus A. G. Vestal 1963-5-30 s.n. Yuba Dry Creek at junction with Peoria Road north of Sicard. Coordinate datum WGS84/NAD83. (39? deg. 14' 2" North Latitude, -121? deg. 20' 47" West Longitude. UTM Zone 10, 642723mE, 4343827mN. Coordinate datum: NAD27). Comment
  UCD39214  Calochortus luteus Beecher Crampton 1968-5-6 8257 Yuba Ca. 4 miles east of Brown's Valley. Comment
  CHSC10605  Calochortus monophyllus Lowell Ahart 1968-5-15 Yuba Near Bullards Bar Dam. 914 Comment
  CHSC32088  Calochortus monophyllus L. Ahart 1973-5-6 212 Yuba Near Challenge. 762 Comment
  CHSC59576  Calochortus monophyllus H. E. Mac Lennan 1992-4-5 9 Yuba 20 air miles se of Oroville. 518 Comment
  SBBG22463  Calochortus monophyllus H. and M. Dearing 1939-5-6 3283 C Yuba near Challenge Comment
  CAS-BOT-BC493080  Calochortus monophyllus Elmer I. Applegate 1934-5-2 8891 Yuba Near Indian Valley, northern Yuba County Comment
  CAS-BOT-BC493081  Calochortus monophyllus Alice Eastwood 1921-5-22 10578 Yuba Los Vergils Comment
  CAS-BOT-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
  SEINET12044650  Calochortus monophyllus L. S. Rose 1931-1 s.n. Yuba Woodleaf, Sierra Nevada Comment
  SJSU9970  Calochortus monophyllus J. B Willis Jr. 1969-4-19 40 Yuba by Marysville Rd 0.5 mi E of Oregon House P.O., 7.5 mi W of Dobbins Comment
  UCD139558  Calochortus monophyllus Kathleen Keliher 1975-4-30 73 Yuba in front of entrance to Middle Brook Ranch, one and one half mile east of Dobbins on Marysville Road. 609 Comment
  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
  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
  JEPS98515  Calycadenia multiglandulosa Lowell Ahart 2000-7-13 8581 Yuba On the south side of Ridge Road, about 1/4 mile west of Our House, about 2 miles (air) east of Celestial Valley, about 2 1/2 miles (air) southeast of Camptonville. 975 Comment
  CAS-BOT-BC270731  Calycadenia multiglandulosa David D. Keck 1932-7-1 1610 Yuba 2 miles E of Dobbins, Stanfield Hill 762 Comment
  UCD129737  Calycadenia multiglandulosa Gerald D. Carr 1971-8-15 632 Yuba 0.6 mile north of Oregon House Post Office on road to Brownsville. Comment
  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
  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
  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
  SFV18641  Calycanthus occidentalis J. D. Dilley 2000-9-16 397 Yuba Sierra Nevada Oregon Creek picnic area on Highway 49, 18 miles north of Nevada City. 445 Comment
  SEINET5717678 Image available Calycanthus occidentalis Wayne Blizzard 1974-1 36 Yuba Ca. 300 yards south of Station Headquarters, University of California Sierra Foothill Range Field Station.; UC Foothill Field Station Comment
  CHSC84995  Calyptridium monospermum Lowell Ahart 2003-10-29 10685 Yuba On the south side of Lost Creek, below the high water line of Sly Creek Reservoir, about 400 yards southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS104133  Calyptridium monospermum Lowell Ahart 2003-10-29 10685 Yuba On the south side of Lost Creek, below the high water line of Sly Creek Reservoir, ca 400 yd sw of the Day Camp, Sly Creek Reservoir. 1072 Comment
  UC852134  Calyptridium monospermum Lewis S. Rose 1939-6-6 39230 Yuba 2 mi ne of Clipper Mills 1173 Comment
  UC1794943  Calystegia occidentalis subsp. occidentalis R. K. Brummitt 1997-6-3 19642 Yuba near junction of Allegheny Road and Rte. 49, 4 km NE of N. San Juan 700 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
  SEINET7072718  Camissonia gouldii A. G. Vestal 1963-5-7 s.n. Yuba About 3.5 miles north of Wheatland on Jasper Lane. UTM Zone 10, 636590E, 4323573mN. Coordinate datum: NAD 27. Comment
  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
  UCD114164  Capsella bursa-pastoris Barbara Yungert 1974-4-10 11 Yuba irrigated pasture along Porter Creek, SC-5 project area, Sierra Foothill Field Station. Comment
  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
  CHSC97495  Cardamine oligosperma Lowell Ahart 2007-5-12 13781 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  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
  JEPS106277  Cardamine pachystigma var. pachystigma Lowell Ahart 2004-4-27 10767 Yuba About 20 yards north of a drainage, about 50 yards east of the road, about 1/2 mile (air) southeast of Woodleaf 931 Comment
  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
  CDA6863  Carduus pycnocephalus William J. Ferlatte, A. Hill 1971-8-31 1369 Yuba Camp Far West, 1.4 miles past road to boat ramp on North Recreation Area road. 0 Comment
  UCD85583  Carduus pycnocephalus Kathleen Keliher 1975-5-31 125 Yuba Sierra Foothill Field Station, H-2 project area. Comment
  CHSC107162  Carduus pycnocephalus subsp. pycnocephalus L. P. Janeway 2011-6-2 10355 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow, fire-killed areas of manzanita in and around the meadow. Plants under burned manzanitas and burned areas into edge of forest. 750 Comment
  CHSC105967  Carex amplifolia Lowell Ahart 2010-9-9 17142 Yuba In a small meadow, about 50 yards east of the dirt road (road now destroyed), east part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills. 1015 Comment
  CHSC63284  Carex amplifolia Lowell Ahart 1994-6-5 7301 Yuba On the bottom and sides of Costa Creek, on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  UC1552705  Carex amplifolia Frederica Bowcutt 1985-6-8 589 Yuba 1 air mi se Canptonville (along Oregon Creek, 12 air mi n of Nevada City); Tahoe National Forest, Oregon Creek 762 Comment
  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
  UCD80245  Carex angustata CNPS SN Foothill Team 2005-3-16 SNFN 0017 a Yuba 187 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
  CHSC63188  Carex aurea Lowell Ahart 1994-6-27 7384 Yuba In a boggy meadow, north of the dirt road that goes from La Porte to the Poverty Hill Mine (County Road), east of Schwartz Meadow, about 4 miles north-east of Strawberry Valley. 1219 Comment
  CHSC112130  Carex barbarae L. P. Janeway; James Nixon, Eduardo Gonzales 2014-7-2 11431 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow opening just northeast of Little Oregon Creek and 0.2 km east of Oregon Hill Road; 7.3 air-km southeast of Challenge. 625 Comment
  CHSC110879  Carex cyrtostachya L. P. Janeway; Lowell Ahart, Linnea Hanson 2007-7-13 9116 Yuba Northern High Sierra Nevada. Plumas National Forest; Hampshire Creek meadow, 1.5 air km east of Clipper Mills and 1.8 air km northwest of North Yuba River. 1026 Comment
  CHSC115738  Carex cyrtostachya P. F. Zika; B. Wilson, L. Ahart, L. Janeway 2011-8-5 25718 Yuba Hampshire Meadow, 1 air mile E of Clipper Mills, northr Sierra Nevada Highlands. 1025 Comment
  JEPS121421  Carex cyrtostachya P. F. Zika, B. Wilson, L. Ahart, L. Janeway 2011-8-5 25718 Yuba Hampshire Meadow, 1 air mile E of Clipper Mills, northern Sierra Nevada Highlands (n SNH) Comment
  CHSC63192  Carex echinata subsp. echinata Lowell Ahart 1994-6-27 7385 Yuba Meadow, north of the dirt road that goes from La Porte Road to the Poverty Hill Mine (County Road), east of Schwartz Meadow, about 4 miles north-east of Strawberry Valley. 1219 Comment
  JEPS113711  Carex echinata subsp. echinata Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14299 Yuba On the south side of Hampshire Creek, on the southeast side of a large wet meadow, about 80 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills 1021 Comment
  JEPS117653  Carex echinata subsp. echinata Lowell Ahart 2010-7-27 16916 Yuba Meadow on the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. Along small streams in meadow 1219 Comment
  CAS-BOT-BC19989  Carex feta Barbara T. Keller 1975-6-10 1495 Yuba Challenge Experimental Forest on La Porte Road near Challenge. 762 Comment
  JEPS95526  Carex feta Lowell Ahart 1994-6-5 7307 Yuba 3 air miles E of Forbestown (E side of Forbestown Road) 853 Comment
  UCD33110  Carex feta Beecher Crampton 1966-6-14 7753 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  SEINET10650510  Carex feta Lewis S. Rose 1940-5-28 Rose 40384 Yuba Browns Valley. 61 Comment
  SEINET4291980 Image available Carex feta A. L. Hipp, Clifton, G 1999-1 ah 385 Yuba Marysville Road Comment
  SEINET7558578 Image available Carex feta Andrew L. Hipp, Glen C. Clifton 1999-5-29 385 Yuba Marysville Road. Comment
  CAS-BOT-BC21234  Carex fracta John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54094 Yuba The Sierra Nevada. 3.6 miles NE of Strawberry Valley on La Porta - Quincy Road. 1280 Comment
  CDA33076  Carex fracta G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3048 Yuba 3.6 miles northeast of Strawberry Valley on La Porta-Quincy Road, at Plumas County Line. Comment
  CHSC96548  Carex gracilior L. P. Janeway 2006-5-24 8631 Yuba Northern Sierra Nevada Foothills. South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. 483 Comment
  RSA724936  Carex gracilior L. P. Janeway 2006-5-24 8631 Yuba South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. NAD83. 483 Comment
  CAS-BOT-BC146668  Carex hirtissima Peter H. Raven 1953-5-9 5475 Yuba 1 mile from Brownsville on road to Challenge Comment
  CHSC63193  Carex hirtissima Lowell Ahart 1994-6-27 7386 Yuba Along the south side of a small stream, east of the logging road, east of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  JEPS87677  Carex hirtissima Lowell Ahart 1994-6-5 7304 Yuba ca. 3 (air) mi e Forbestown (s side of creek, e side of Forbestown Rd.); Costa Creek 853 Comment
  JEPS87733  Carex hirtissima Lowell Ahart 1994-6-27 7386 Yuba ca. 4 mi. n.e. Strawberry Valley (s. side of small stream, e. of logging rd., e. of Schwartz Meadow, on e. side of La Porte Rd.) 1219 Comment
  JEPS87734  Carex hirtissima Lowell Ahart 1994-6-27 7386 Yuba on the e side of La Porte Road about 4 mi ne of Strawberry Valley; along the s side of a small stream, e of the logging road, e of Schwartz Meadow 1219 Comment
  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
  CHSC63293  Carex lemmonii Lowell Ahart 1994-6-5 7298 Yuba On the sides of Costa Creek, on the south side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  CHSC84197  Carex lemmonii Lowell Ahart 2003-7-6 10360 Yuba Along a small stream 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
  CHSC115302  Carex multicaulis Lowell Ahart 2015-4-30 20125 Yuba Open forest, on the south side of the gravel road, about 10 yards east of the gate, about 3/4 mile (air) southeast of Woodleaf. Mixed Evergreen Forest. 948 Comment
  JEPS100270  Carex multicaulis Dean W. Taylor 2001-5-9 17643 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  SEINET7577235 Image available Carex subfusca Andrew L. Hipp, Glen C. Clifton 1999-5-29 400 Yuba Little Oregon Creek. Comment
  CAS-BOT-BC499133  Carex xerophila Peter F. Zika; L. P. Janeway 2012-5-16 25870 Yuba Ponderosa Way near LaPorte Road, picnic area N of airport, 2.7 air km WSW of Russ Hill, Brownsville 665 Comment
  CHSC102952  Carex xerophila L. P. Janeway 2006-5-24 8626 Yuba Northern Sierra Nevada Foothills. Along Forsythe Road 2.7 road km south of New York House Road; above Prince Albert Creek. 604 Comment
  CHSC102954  Carex xerophila L. P. Janeway 2006-5-24 8619 Yuba Northern High Sierra Nevada Foothils. East side of Ponderosa Way 1.3 km north of La Porte Road and Brownsville. 686 Comment
  HSC103678  Carex xerophila L. P. Janeway 2006-5-24 8616 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way, 1.3 road km. SE of Robinson Mill Road; 1.3 air km. SE of Robinson Mills & Forbestown Road. 771 Comment
  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
  RSA0058984  Carex xerophila Peter F. Zika, L. P. Janeway 2012-5-16 25871 Yuba Just E of junction of Jiggs Road and Ponderosa Way, 3 air km W of Ruff Hill, Brownsville. Northern Sierra Nevada Foothill/Highlands boundary (n SNF/H). Adjacent to Brownsville dump. 715 Comment
  SEINET12650009 Image available Carex xerophila L. P. Janeway 2006-1 8626 Yuba 604 Comment
  SEINET13723627  Carex xerophila P. F. Zika, L. P. Janeway 2012-5-16 25871 Yuba foothill/highlands, just east of junction of Jiggs Road and Ponderosa Way, 3 air km west 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
  CHSC115303  Castilleja applegatei subsp. pinetorum Lowell Ahart 2015-5-9 20147 Yuba On the west side of the road, on the steep road cut, Highway 49, about one mile northeast of the intersection of Marysville Road and Highway 49, about 2 miles southwest of Camptonville. Mixed Evergreen Forest. 803 Comment
  RSA0117085  Castilleja applegatei subsp. pinetorum Lowell A. Ahart 2015-5-9 20147 Yuba On the west side of the road, on the steep road cut, Highway 49, about 1 mile northeast of the intersection of Marysville Road and Highway 49, about 2 miles southwest of Camptonville. 804 Comment
  UCD37871  Castilleja attenuata Beecher Crampton 1962-4-24 6290 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD81500  Castilleja attenuata Christopher Michael Bronny 2009-4-1 12 Yuba Oat Hills' area of Sierra Nevada foothills. 173 Comment
  UCD122574  Castilleja lineariloba Barbara Yungert 1974-4-17 59 Yuba North of Yuba River, F-2 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
  SD147493  Castilleja pruinosa Lowell Ahart 1980-6-19 2411 Yuba 4 miles east of Challenge 900 Comment
  SJSU14229  Castilleja pruinosa N. A. Hopkins 1989-4-28 1481 Yuba Ridge Rd to Allegheny c. 3 mi off Hwy 49 1219 Comment
  UCD80765  Castilleja tenuis CNPS SN Foothill Team 2005-6-1 SNFN 0173 d Yuba CDFG, Daugherty Hill Wildlife Area, in the 'C' shaped parcel located to the east of the Daugherty Hill unit. 623 Comment
  UCD110816  Ceanothus cuneatus Christopher Mallek 2008-1 s.n. Yuba Indiana Creek. 617 Comment
  UCD37863  Ceanothus cuneatus Beecher Crampton 1962-4-24 6275 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CAS-BOT-BC64377  Ceanothus diversifolius Elmer I. Applegate 1934-5-2 8891 Yuba Indian Valley Region, northern Yuba County. Comment
  RSA17724  Ceanothus diversifolius Elmer I. Applegate 1934-5-2 8891 Yuba Indian Valley region 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
  UCR196981  Ceanothus integerrimus George K. Helmkamp, E. A. Helmkamp 2008-5-20 13466 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 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
  SEINET5339313  Ceanothus integerrimus D. Kaplan s.n. Yuba Dobbins, Ca., Hwy 49 roadside. 1067 Comment
  CHSC10762  Ceanothus integerrimus var. californicus Lowell Ahart 1968-5-15 Yuba Near Bullards Bar Dam. 914 Comment
  CDA14563  Ceanothus integerrimus var. macrothyrsus G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3040 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  CAS-BOT-BC50587  Ceanothus lemmonii John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54071 Yuba Sierra Nevada - 1/4 miles southwest of Bullards Bar Dam on road to Challenge 609 Comment
  CAS-BOT-BC50589  Ceanothus lemmonii Lester Rowntree 1941-5-14 s.n. Yuba On road between Dobbin and Camptonville Comment
  CHSC113646  Ceanothus lemmonii L. P. Janeway 2014-5-12 11253 A Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 2.1 air km south-southeast of Oregon Peak, 0.2 km northeast of Marysville Road. 762 Comment
  UC634626  Ceanothus lemmonii H. L. Mason 1927-5-11 3723 Yuba near Dobbins 457 Comment
  UCD112077  Ceanothus lemmonii Beecher Crampton 1966-6-14 7761 Yuba 1 mile west of Brownsville. Comment
  UCD112157  Ceanothus lemmonii H. and M. Dearing 1939-5-6 3286 Yuba West of Challenge. 609 Comment
  UCD112171  Ceanothus lemmonii Kathleen Keliher 1974-5-13 102 Yuba Near Dry Creek, just above waterfalls, ca. one half mile from station boundry, Sierra Foothill Field Station. 182 Comment
  CAS-BOT-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
  CDA35772  Centaurea jacea J. R. Keck Jr., Horn 1989-8-23 PDR# 893580 Yuba North side of La Porte Rd. (E21) halfway between Challenge and Woodleaf. 0 Comment
  CHSC116341  Centaurea jacea nothosubsp. pratensis J. R. Keck Jr.; Horn 1989-8-23 PD 893580 Yuba North side of La Porte Rd. (E21) halfway between Challenge and Woodleaf. Comment
  CAS-BOT-BC277077  Centaurea melitensis Lowell Ahart 1981-6-13 2852 Yuba South side of McGinn Hill, east of Loma Rica 300 Comment
  JEPS46981  Centaurium muehlenbergii W. L. Jepson 1934-7-29 16757 Yuba Marysville Comment
  RSA726851  Centaurium muehlenbergii L. Ahart 2007-6-30 14228 Yuba About 13 miles (air) northeast of Marysville. 30 Comment
  UC725367  Centaurium muehlenbergii A. A. Heller 1938-6-17 15163 Yuba 5 mi e Marysville (near the Yuba River); Sacramento Valley Comment
  UC878317  Centaurium muehlenbergii Alice Eastwood 1913-7-3 3411 Yuba Wheatland Comment
  CHSC116112  Centaurium tenuiflorum Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20637 Yuba On the west side of the outflow area at the bottom of Lake Francis Dam, Lake Francis, about 1-1/2 miles south of Dobbins. 479 Comment
  CHSC47411  Centaurium tenuiflorum Lowell Ahart 1981-6-13 2856 Yuba Along the banks of a small stream, west of McGinn Hill, east of Loma Rica. 304 Comment
  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
  JEPS114056  Centromadia fitchii Robert E. Preston 2007-9-21 2578 Yuba 3.5 mi S of Olivehurst, at jct Plumas-Arboga Rd and Old Marysville Rd. Comment
  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
  CAS-BOT-BC288825  Centromadia fitchii Mrs. S. Earle Kelley 1921-5-1 s.n. Yuba [Los Verjeles?] Comment
  CHSC46538  Cephalanthera austiniae Lowell Ahart 1974-5-29 457 Yuba About 1 mile north of Challenge. 914 Comment
  CHSC97482  Cerastium glomeratum Lowell Ahart 2007-5-12 13786 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS107346  Cerastium glomeratum Lowell Ahart 2005-3-11 11605 Yuba In middle of the poor dirt road, W of large rock outcrop, ca. 1/2 mi W of Marysville Rd, ca. 1/2 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/2 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 386 Comment
  JEPS113529  Cerastium glomeratum Lowell Ahart 2007-5-12 13786 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  CAS-BOT-BC388245  Cerastium glomeratum Susan J. Schmickle 1977-4-16 2 Yuba At the UC Sierra Field Station, northwest off of Road 4 Comment
  UCD98085  Cerastium glomeratum Barbara Yungert 1974-5-3 112 Yuba K 1-11 project area; Sierra Foothill Field Station. Comment
  CAS-BOT-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-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
  CHSC112869  Chamaebatia foliolosa L. P. Janeway 2014-4-24 11232 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  CHSC11351  Chamaebatia foliolosa Lowell Ahart 1968-5-15 Yuba Near Bullards Bar Dam. 914 Comment
  UCD112923  Chamaebatia foliolosa Collector unknown 1918-1 s.n. Yuba Mountain Misery. Comment
  CHSC69139  Chamaesyce maculata Lowell Ahart 1997-8-7 7806 Yuba On the north side of New York Flat Road, about one mile northwest of La Porte Road, about 1 mile north of Brownsville. 731 Comment
  CHSC81781  Chamaesyce maculata Lowell Ahart 2001-11-2 9399 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  JEPS102535  Chamaesyce maculata Lowell Ahart 2001-11-2 9399 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  JEPS103340  Chamaesyce maculata Lowell Ahart 2002-10-9 9967 Yuba On the W bank of a small stream, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS95853  Chamaesyce nutans Lowell Ahart 1999-9-5 8191 Yuba on the disturbed area on the south side of Woodruff Lane; just west of Kimball Lane; about 5 miles (air) northeast of Marysville 24 Comment
  CHSC78142  Chamaesyce ocellata subsp. ocellata Lowell Ahart 2000-6-11 8469 Yuba On the west side of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 152 Comment
  CHSC97567  Chamaesyce ocellata subsp. ocellata Lowell Ahart 2007-5-14 13880 Yuba Around the culvert on the east side of the poor dirt road, about 50 yards south of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS98575  Chamaesyce ocellata subsp. ocellata Lowell Ahart 2000-6-11 8469 Yuba 6 mi (air) S of Smartville (W side of Smartville Road, 2 mi N of int. with Waldo Road) 152 Comment
  CHSC78143  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2000-6-11 8467 Yuba On the bottom of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  CHSC83040  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2002-10-9 9966 Yuba On the west bank of a small stream, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CHSC97707  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2007-11-8 14580 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  JEPS121318  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2013-11-30 19299 Yuba On the sides of a deep wash (Willow Glen Creek), NW of Dry Creek, below the high water line of Collins Lake, about 100 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  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
  UCD37853  Chamomilla Beecher Crampton 1962-4-24 6257 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CDA14559  Chenopodium botrys G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3036 Yuba 1.4 miles west of New Bullards Bar Dam, between Log Cabin and Camptonville. 609 Comment
  CAS-BOT-BC205805  Chlorogalum angustifolium James R. Shevock; Bob Holland 1985-5-6 11125 Yuba Sacramento Valley. Beale Air Force east of Marysville 40 Comment
  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
  CAS-BOT-BC498792  Chlorogalum angustifolium Peter H. Raven 1953-5-9 5485 Yuba Flat soil of red plains ca. 4 mi. from Marysvlle on road to Grass Valley Comment
  CAS-BOT-BC498794  Chlorogalum angustifolium J. T. Howell; Gordon H. True 1971-5-26 47612 Yuba Rocky, pebbly flats and hollows where water has stood but now dry, about 8 miles east of Marysville 30 Comment
  CDA18832  Chondrilla juncea E. Finley 1999-7-28 PDR 1013545 Yuba Oregon House 0 Comment
  CHSC95111  Chondrilla juncea L. P. Janeway; Erin Brandy, David Toren 2006-9-25 8888 Yuba Northern High Sierra nevada. Plumas National Forest; along Scales Road on east side of canyon of Slate Creek, 0.7 km south of the bridge across the creek; 4.5 air km west-southwest of Strawberry Valley. 1017 Comment
  JEPS102449  Chondrilla juncea Lowell Ahart 2001-8-14 9108 Yuba On the south side of Marysville Road, about 50 yards east of the east end of Bullards Bar Dam. 609 Comment
  JEPS102507  Chondrilla juncea Lowell Ahart 2001-11-2 9409 Yuba On the east side of Smartville Road, about 4 miles (air) south of Smartville. 175 Comment
  CAS-BOT-BC36351  Chrysolepis sempervirens Alice Eastwood 1918-4-7 6804 Yuba on Hills above North Fork & Yuba Rivers Comment
  UCD81491  Cicendia quadrangularis Christopher Michael Bronny 2009-3-23 3 Yuba Lower Sierra Nevada foothills. Area near Loma Rica. 158 Comment
  SEINET7042660  Cirsium occidentale A. G. Vestal 1963-5-30 s.n. Yuba Turn off to Timbuctoo at Yuba river. Smartville quadrangle UTM Zone 10, 644012mE, 4342272mN. Comment
  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
  RSA18618  Clarkia biloba subsp. brandegeeae Carl B. Wolf 1937-6-11 8779 Yuba Sierra Nevada Foothills, 1.6 miles NW of Stanfield Hill, along a fork of S. Honcut Creek 305 Comment
  UCD33665  Clarkia biloba subsp. brandegeeae Beecher Crampton 1971-6-18 8737 Yuba Sierra Foothill Range Field Station, ca. 6 miles east of Browns Valley. 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
  CAS-BOT-BC172029  Clarkia gracilis subsp. gracilis Alice Eastwood 1921-5-22 10562 Yuba Los Vergils Comment
  CAS-BOT-BC163270  Clarkia mildrediae subsp. lutescens Lowell Ahart 1980-7-25 2486 Yuba Near Slate Creek 1200 Comment
  JEPS125979  Clarkia mildrediae subsp. lutescens D. W. Taylor 2001-6-18 17783 Yuba Ca 2.5 air miles NE of Strawberry Valley; canyon of Slate Creek along Forest Road 35 about 0.5 miles above the bridge on the S-facing canyon slope. Comment
  JEPS126006  Clarkia mildrediae subsp. lutescens D. W. Taylor 2001-6-20 17797 Yuba Ca 2 air miles SW of Union Hill; creek along Forest Road 20N06 t0.4 miles E of the junction with Forest Road 20N35, in the canyon of Rock Creek. Comment
  SEINET7042646  Clarkia purpurea A. G. Vestal 1963-5-30 s.n. Yuba Weedy depression near Dry Creek and north oh Sicard Flat. Smartville quadrangle UTM Zone 10, 642203mE, 4345148mN. Comment
  CAS-BOT-BC163418  Clarkia purpurea subsp. quadrivulnera Mrs. J. E. Cramsie 1923-5-22 s.n. Yuba Smartsville Comment
  HSC100754  Clarkia purpurea subsp. quadrivulnera Lowell Ahart 2011-6-7 17405 Yuba 25 yd. S of gravel bar along the Yuba River, 150 yd. W of S end of Parks Bar Bridge (Hwy. 20), 15 (air) mi. NE of Marysville. 66 Comment
  SEINET7067147  Clarkia purpurea subsp. quadrivulnera A. G. Vestal 1947-4-30 s.n. Yuba About 5.1 miles west of Smartville. Coordinate datum: NAD27. UTM Zone 10, 641421mE, 4340515mN. Comment
  SEINET7072981  Clarkia purpurea subsp. quadrivulnera A. G. Vestal 1963-5-29 s.n. Yuba About 0.4 mile west of Erle Road on Hammonton-Smartville Road. UTM Zone 10, 638165mE, 4337165mN. Coordinate datum: NAD27). Comment
  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
  UCD104972  Clarkia purpurea subsp. quadrivulnera Barbara Yungert 1974-5-9 142 Yuba Schubert project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC165394  Clarkia stellata Rimo Bacigalupi 1927-7-2 1584 Yuba Highway to Downieville about 8 miles north east of Camptonville Comment
  CHSC70761  Clarkia stellata L. P. Janeway; Loren Gehrung, Karen Lee, Marcile Sigler, C. Sivil 1993-6-15 4384 Yuba 1.3 mi east of Woodleaf, 1.2 mi southwest of Clipper Mills; uppermost drainage of Slapjack Creek. 1043 Comment
  POM161753  Clarkia stellata R. C. Bacigalupi 1927-7-2 1584 Yuba Highway to Downieville about 8 mi NE of Camptonville. Comment
  UC1730243  Clarkia stellata L. P. Janeway and Loren Gehrung, Karen Lee, Marcile Sigler, Cliff Sivil 1993-6-15 4384 Yuba 1.3 mi E of Woodleaf (1.2 mi SW of Clipper Mills, upperlmost drainage of Slapjack Creek) 1043 Comment
  UCD100707  Claytonia parviflora subsp. parviflora Barbara Yungert 1974-4-16 40 Yuba Cambell Valley, Sierra Foothill Field Station. Comment
  SEINET11935684  Claytonia perfoliata F. H. Utech 1990-1 90 -870 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  CHSC68481  Collinsia heterophylla Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir. 1997-4-6 7722 Yuba South of the poor dirt road, north of the Browns Valley Water Ditch, south of Dry Creek, about 1 mile east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 182 Comment
  JEPS94316  Collinsia heterophylla Lowell Ahart 1997-4-6 7722 Yuba about 17 mi ne of Marysville (s of the poor dirt road, n of the Browns Valley Water Ditch, s of Dry Creek, about 1 mi e of Scott Forbes Road (Long Bar Road)) 182 Comment
  UCD123625  Collinsia heterophylla Barbara Yungert 1974-5-9 101 Yuba northeast of Upper Schubert project area, Sierra Foothill Field Station. Comment
  JEPS18883  Collinsia sparsiflora var. collina Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1956-4-19 5618 Yuba 0.5 mi. n. Dobbins Ranger Station (CA State Dept. of Forestry) (along rd. from Oregon House to Dobbins) 548 Comment
  JEPS6367  Collinsia tinctoria Rimo Bacigalupi and L. R. Heckard 1952-6-20 3755 Yuba 1.5 mi due s Brownsville (along rd from Brownsville to Oregon House, just n of Washington Mill) 609 Comment
  UCD33666  Collinsia tinctoria Beecher Crampton 1971-6-18 8738 Yuba Sierra Foothill Range Field Station, ca. 6.5 miles east of Browns Valley. Comment
  CHSC63260  Collomia heterophylla Lowell Ahart 1994-6-5 7297 Yuba On the north side of Costa Creek, on the south side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  POM161752  Collomia heterophylla R. C. Bacigalupi 1927-7-2 1582 Yuba Road to Downieville, 2 miles west of Camptonville Comment
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Nov 9 2011
  JEPS123869  Collomia tinctoria Lowell Ahart 2015-4-30 20129 Yuba About 1 1/4 miles (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. Comment
  UCD126194  Convolvulus arvensis G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12839 Yuba Northern Sierra Nevada Mountains: along Hwy. CA-49, 0.5 mile south of Camptonville. 817 Comment
  UCR189626  Convolvulus arvensis George K. Helmkamp, E. A. Helmkamp 2007-8-29 12839 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 Comment
  SEINET7134343  Convolvulus arvensis J. Ridley 1959-4-19 21 Yuba 1 mile east of Smartville in open field on north side of highway 20 61 Comment
  UCD126141  Convolvulus arvensis Barbara Yungert 1974-5-21 172 Yuba along road near old headquarters, Hill project near, Sierra Foothill Field Station. 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
  JEPS124143  Conyza canadensis Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20638 Yuba Below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  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
  JEPS95066  Cordylanthus tenuis subsp. tenuis Lowell Ahart 1997-8-7 7813 Yuba 3 air mi se of Challenge (on n. side of dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  JEPS112920  Cornus nuttallii Dean W. Taylor 2001-7-31 17849 Yuba creek along Forest Road 20N35 tributary to Brushy Creek near Diamond Ravine (ca. 3 air miles SW of Union Hill) 1127 Comment
  UCD117173  Cornus nuttallii Kathleen Keliher 1975-4-30 74 Yuba Along road between Bullards Bar Dam and Challenge. 762 Comment
  SEINET8083560  Cornus nuttallii D. E. Selleck 1979-4-28 s.n. Yuba About 3 miles north of highway junction 140 and 70. Comment
  CAS-BOT-BC212156  Cornus sericea Beecher Crampton 1966-6-14 7739 Yuba 1 mile east of Brownsville, La Porte Road 731 Comment
  UCD117333  Cornus sericea subsp. sericea Beecher Crampton 1966-6-14 7739 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 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
  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
  JEPS95808  Coronopus didymus Lowell 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 24 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
  JEPS113631  Crassula tillaea Lowell Ahart 2007-5-12 13788 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  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
  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
  JEPS118318  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
  UC1278015  Crucianella angustifolia Beecher Crampton 1957-6-5 4163 Yuba Timbuctoo Comment
  SEINET7042658  Crucianella angustifolia A. G. Vestal 1963-5-30 s.n. Yuba Turn off to Timbuctoo at Yuba river. Smartville quadrangle UTM Zone 10, 644012mE, 4342272mN. 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
  CHSC97705  Crypsis alopecuroides Lowell Ahart 2007-11-8 14591 Yuba On the strand of Camp Far West Reservoir, about 1/4 mile north of Rock Creek, about 6 1/2 miles (air) northeast of Sheridan. 68 Comment
  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
  JEPS121316  Crypsis vaginiflora Lowell Ahart 2013-11-30 19301 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-BC80750  Cupressus macnabiana C. B. Wolf; E. R. Johnson 1934-10-3 6152 Yuba Sierra Nevada Foothills, Texas Hill, approx. 2 mi. W., of Dobbins 548 Comment
  CAS-BOT-BC80751  Cupressus macnabiana C. B. Wolf; E. R. Johnson 1934-10-4 6157 Yuba Sierra Nevada Foothills, N. side Indiana Creek, 1 7/10 mi. W. of Indiana Ranch 548 Comment
  CAS-BOT-BC80752  Cupressus macnabiana C. B. Wolf; E. R. Johnson 1934-10-4 6156 Yuba Sierra Nevada Foothills, N. side Indiana Creek, 1 7/10 mi. W. of Indiana Ranch 548 Comment
  CAS-BOT-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
  CHSC10644  Cupressus macnabiana Lowell Ahart 1969-1-25 Yuba Near Challenge. 914 Comment
  CHSC43501  Cupressus macnabiana Lowell Ahart 1969-1-25 24 Yuba Near the Brownsville dump, about 2 miles west of Brownsville. 609 Comment
  CHSC96604  Cupressus macnabiana L. P. Janeway 2006-5-24 8627 Yuba Northern Sierra Nevada Foothills. Along Forsythe road 2.7 road km south of New York House Road; above Prince Albert Creek. 604 Comment
  NY16691  Cupressus macnabiana A. Eastwood 1930-4-12 7931 Yuba This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  NY16722  Cupressus macnabiana C. B. Wolf 1934-10-4 6157 Yuba This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  NY16723  Cupressus macnabiana C. B. Wolf 1934-10-4 6157 Yuba This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UC699597  Cupressus macnabiana Richard Sias 1945-3-9 Yuba Challenge Challenge (sw slope of rocky ridge) 914 Comment
  UCD110802  Cupressus macnabiana Christopher Mallek 2008-1 s.n. Yuba Daken Flat. 675 Comment
  UCD110843  Cupressus macnabiana Christopher Mallek 2008-1 s.n. Yuba Bald Mountain. 935 Comment
  NY16724  Cupressus macnabiana C. B. Wolf 1934-10-3 6151 Yuba This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SEINET10531459  Cupressus macnabiana Carl B. Wolf, E. R. Johnson 1934-10-4 Wolf 2218 Yuba Siera Nevada foothills, N side Indiana Creek, 1 7/10 mi W of Indiana Ranch. Upper sonoran:- Digger Pines, Quercus wislizenii. Sun. Rocky S slope. 550 Comment
  SEINET10867000  Cupressus macnabiana Carl B. Wolf, E. R. Johnson 1934-10-4 Wolf 2118 Yuba Sierra Nevada foothills, N. side Indiana Creek, 1 7/10 mi W of Indiana Ranch. Upper sonoran:- Digger Pines, Quercus wislizenii. Sun. Rocky S slope. 550 Comment
  UCD54458  Cuscuta campestris Leonard Buschmann 1973-6-28 s.n. Yuba Yuba Co. Virginia Rd. and Stan Dr. Comment
  UCD126292  Cuscuta howelliana F. T. Griggs 1978-5-19 s.n. Yuba 200 meters west of North Recreation Area, Camp Far West Reservoir. 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
  CDA20596  Cuscuta japonica Roush, Anderson, Umino, Storm 2005-10-21 PDR 1295325 Yuba Sacramento Valley; 4838 Western Ave, Olivehurst. 0 Comment
  CDA41307  Cuscuta japonica J. Deviney, Anderson, Umino 2005-8-3 PDR 1295323 Yuba Sacramento Valley; 4838 Western Ave, Olivehurst. 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
  JEPS115023  Cuscuta pentagona Lowell Ahart 2007-11-1 14536 Yuba On Xanthium strumarium, on the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  CHSC47674  Cuscuta subinclusa Lowell Ahart 1989-9-3 6386 Yuba On the west side of Ponderosa Way, west of the Brownsville Dump, about 1 mile south-west of Brownsville. 609 Comment
  SEINET10515415  Cynodon dactylon Wiegand 1921-8-25 WIEGAND 200 Yuba Dry gravel roadside, near Marysville. Comment
  UCD119167  Cynoglossum grande Kathleen Keliher 1975-5-15 108 Yuba Along Cleaveland Road, 3 miles east of Camptonville. 914 Comment
  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
  POM319499  Cynosurus echinatus Patricia Wilder 1971-6-23 5200 Yuba West outskirts of the town of Challenge in a vacant lot; 20 miles east of Oroville. 762 Comment
  UCD60177  Cynosurus echinatus Beecher Crampton 1965-6-17 7382 Yuba 2 miles south Brownsville, Willow Glen Road. 792 Comment
  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
  CHSC69457  Cyperus eragrostis Lowell Ahart 1997-8-30 7879 Yuba On the west side of the dirt road, near a road culvert, about one mile (air) south of Woodleaf. 944 Comment
  CHSC76112  Cyperus eragrostis Lowell Ahart 1999-9-5 8196 Yuba Disturbed area on the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 Comment
  CHSC96938  Cyperus eragrostis Lowell Ahart 2007-6-30 14229 Yuba Sides of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  CHSC97755  Cyperus eragrostis Lowell Ahart 2007-11-1 14540 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  CAS-BOT-BC114574  Cyperus eragrostis W. V. Middlekauff 1954-9-11 s.n. Yuba 3 mi NW of Rio Oso Post Office. Comment
  CHSC116338  Cyperus erythrorhizos Lowell Ahart 2015-11-19 20683 Yuba 100 yards or more north of the spillway area, below the highwater line, west side of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  JEPS124260  Cyperus erythrorhizos Lowell Ahart 2015-11-19 20683 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CHSC76113  Cyperus esculentus Lowell Ahart 1999-9-5 8195 Yuba On the disturbed area on the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 Comment
  CHSC23371  Cyperus flavescens Lowell Ahart 1975-9-11 Yuba Pasture on the Eugene Ahart Ranch in Marysville. 30 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
  JEPS95784  Cyperus iria Lowell Ahart 1999-9-5 8197 Yuba about 5 miles (air) northeast of Marysville; ; on the disturbed area on the south side of Woodruff Lane; just west of Kimball Lane; about 5 miles (air) northeast of Marysville 24 Comment
  CHSC43569  Cyperus rotundus Lowell Ahart 1978-10-28 1819 Yuba In the yard of Mr. and Mrs. Marion Bew, at H and 13th Street, Marysville. 30 Comment
  NY663864  Cyperus rotundus L. Ahart 1978-10-28 s.n. Yuba H & 13th Streets, Marysville Comment
  CHSC41901  Cytisus scoparius Lowell Ahart 1973-5-6 219 Yuba About 1 mile north of Challenge. 762 Comment
  JEPS100265  Cytisus scoparius Dean W. Taylor 2001-5-9 17638 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  SEINET5327050  Cytisus scoparius M. J. Williams 1967-5-14 s.n. Yuba Camptonville 914 Comment
  UCR197050  Dactylis glomerata George K. Helmkamp, E. A. Helmkamp 2008-5-20 13474 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  CAS-BOT-BC205804  Damasonium californicum James R. Shevock; Bob Holland 1985-5-6 11132 Yuba Sacramento Valley. Beale Air Force east of Marysville 40 Comment
  CAS-BOT-BC189855  Danthonia californica Lowell Ahart 1979-6-25 s.n. Yuba 2 miles east of Challenge. 700 Comment
  CHSC95029  Danthonia californica var. americana L. P. Janeway 2006-5-24 8615 Yuba Northern High Sierra Nevada Foothills. Along Ponderosa Way 1.3 road km southeast of Robinson Mill Road; 1.3 air km southeast of Robinson Mills and Forbestown Road. Moderate slope, south-facing. 771 Comment
  CHSC95035  Danthonia californica var. americana L. P. Janeway 2006-5-24 8620 Yuba Northern High Sierra Nevada Foothills. East side of Ponderosa Way 1.3 km north of La Porte Road and Brownsville. 686 Comment
  UCD60681  Danthonia californica var. americana Beecher Crampton 1966-6-14 7763 Yuba 1 mile west of Brownsville. Comment
  RSA653943  Danthonia unispicata Beecher Crampton 1966-6-14 7764 Yuba 1 mile east of Brownsville on La Porte road, near Brownsville Fire Station, CA div. of Forestry. Comment
  SEINET238188 Image available Danthonia unispicata Beecher Crampton 1966-6-14 7764 Yuba 1 mile east of Brownsville on La Porte road near Brownsville Fire Station CA div. of Forestry. Comment
  UCD102619  Darmera peltata Kathleen Keliher 1975-5-8 99 Yuba Off Forbestown Road, near Catttle guards, Rowell's property. 152 Comment
  CHSC76106  Daucus carota Lowell Ahart 1999-9-5 8192 Yuba On the disturbed area on the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 Comment
  JEPS118079  Daucus pusillus Lowell Ahart 2011-6-7 17370 Yuba Grassy road margin, about 50 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCD127493  Daucus pusillus Barbara Yungert 1974-5-13 148 Yuba north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  SEINET12092463  Delphinium decorum L. S. Rose 1931-1 s.n. Yuba Brownsville Comment
  CAS-BOT-BC8559  Delphinium hansenii Lewis Samuel Rose 1940-5-28 40379 Yuba Browns Valley 60 Comment
  UC1031402  Delphinium hansenii subsp. hansenii H. Lewis and C. Epling 1941-5-26 Yuba Smartville Comment
  UCD96556  Delphinium patens Barbara Yungert 1974-4-12 28 Yuba Along fence near county road, F-51 project area. Sierra Foothill Field Station. Comment
  CAS-BOT-BC116483  Delphinium patens subsp. patens Gordon H. True 1968-5-6 4229 Yuba Near Gales Orchard ca. 6 miles east of Camptonville 1249 Comment
  CAS-BOT-BC122010  Delphinium variegatum Gordon H. True 1963-4-23 1197 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Highway 30 Comment
  CAS-BOT-BC122011  Delphinium variegatum Gordon H. True 1963-4-17 1159 Yuba About 5 miles south of Smartville, on Beale Air Force Base road 121 Comment
  UCD62773  Deschampsia danthonioides Beecher Crampton 1963-5-11 7322 Yuba 2.5 miles southwest of Brown's Valley. Comment
  UCR168689  Deschampsia danthonioides David Charlton 2005-5-16 8015 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  CAS-BOT-BC201732  Deschampsia elongata Lowell Ahart 1979-6-25 s.n. Yuba 1 mile south of Challenge 700 Comment
  UCD63571  Deschampsia elongata Beecher Crampton 1966-6-14 7747 Yuba 1 mile east of Brownsville. 731 Comment
  CDA31979  Descurainia sophia L. Ahart 2007-5-12 13782 Yuba Along road to the power towers, about 20 yards south of the first power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. Comment
  RSA726956  Descurainia sophia L. Ahart 2007-5-12 13782 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  CAS-BOT-BC402378  Dicentra formosa subsp. formosa Herbert L. Mason 1927-5-11 3734 Yuba Near Bullards Bar 609 Comment
  CAS-BOT-BC402557  Dicentra pauciflora M. Boone 1981-5-15 043 Yuba Found highway 49 2 miles N. of Downyville [Downieville] 1219 Comment
  JEPS95481  Dichanthelium acuminatum subsp. fasciculatum Lowell Ahart 1994-6-5 7308 Yuba 3 air miles E of Forbestown (E side of Forbestown Road) 853 Comment
  UCD112037  Dichelostemma capitatum Christopher Mallek 2008-5-5 IC3- 18 Yuba Indiana Creek. 617 Comment
  CAS-BOT-BC483644  Dichelostemma capitatum Peter H. Raven 1953-5-9 5469 Yuba 1 mile from Brownsville on road to Challenge Comment
  CHSC118503  Dichelostemma capitatum subsp. capitatum L. P. Janeway 2016-5-11 11959 Yuba Northern High Sierra Nevada. Plumas National Forest; near head of eastern tributary of Indian Creek; west side of Road 19N53 0.4 road-km south of Road 29N13. 920 Comment
  RSA333563  Dichelostemma capitatum subsp. capitatum Craig Martz, Richard F. Sannar 1982-3-25 42 Yuba Along both sides of Hammonton-Smartville Road, 1 mile E of N entrance to Beale AFB. 150 Comment
  UCD148231  Dichelostemma lacuna-vernalis Robert E. Preston 2013-3-16 2892 Yuba Along Hammonton-Smartville Rd, 2.4 mi E of Doolittle Drive. 63 Comment
  CHSC97503  Dichelostemma multiflorum Lowell Ahart 2007-5-14 13885 Yuba 60 yards northeast of the gate, about 20 yards north of the power tower, about 70 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  SBBG34511  Dichelostemma multiflorum H. and M. Dearing 1939-5-6 3281 Yuba Browns Valley Comment
  UCD139261  Dichelostemma multiflorum Barbara Yungert 1974-4-29 91 Yuba North of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UCD37884  Dichelostemma multiflorum Beecher Crampton 1962-4-24 6308 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CAS-BOT-BC500915  Dichelostemma multiflorum Lewis S. Rose 1940-5-28 40405 Yuba Dobbins 518 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
  CAS-BOT-BC500917  Dichelostemma multiflorum Alice Eastwood 1921-5-22 10522 Yuba Los Vergils Comment
  SEINET3132583  Dichelostemma multiflorum L. S. Rose 1940-5-28 40405 Yuba Dobbins 518 Comment
  SEINET7042609  Dichelostemma multiflorum A. G. Vestal 1963-5-29 s.n. Yuba Olivehurst-Smartville Road [presently Hammonton- Smartville Road]. 0.4 mile west of road south to Beale Air Force Base [Smartville Road]. Smartville quadrangle UTM Zone 10, 646242mE, 4339869mN. Comment
  UCD113420  Dichelostemma multiflorum Barbara Yungert 1974-5-3 108 Yuba West side of road, near cattle guard and U.C. sign, west of station, Sierra Foothill Field Station. Comment
  UCD139277  Dichelostemma volubile Barbara Yungert 1974-4-22 77 Yuba Along four wheel drive jeep road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  SEINET7042659  Dichelostemma volubile A. G. Vestal 1963-5-30 s.n. Yuba Turn off to Timbuctoo at Yuba river. Smartville quadrangle UTM Zone 10, 644012mE, 4342272mN. Comment
  SJSU9998  Dichelostemma volubile J. B. Willis Jr. 1968-4-27 71 Yuba S bank Yuba River on old stage rd to Timbucktoo, 18 mi E of Marysville Comment
  UCD139278  Dichelostemma volubile Barbara Yungert 1974-4-18 66 Yuba along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  CHSC113174  Digitaria sanguinalis Lowell Ahart 2013-11-30 19302 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  JEPS121319  Digitaria sanguinalis Lowell Ahart 2013-11-30 19302 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-BC153792  Diplacus angustatus Alice Eastwood 1930-4-12 s.n. Yuba Texas hill road Comment
  CAS-BOT-BC150266  Diplacus grandiflorus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54075 Yuba 1.4 miles southwest of Bullards Bar Dam on road to Challenge 609 Comment
  CAS-BOT-BC151759  Diplacus kelloggii Gordon H. True 1963-5-2 1209 Yuba Oregon Creek at jct. with middle Yuba River, at Freeman's Crossing - Sierra Nevada 457 Comment
  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
  SEINET8561734  Dodecatheon hansenii A. Tiehm 1975-1 653 Yuba U.C. Sierra Foothill Field Station. 396 Comment
  CHSC1397  Dodecatheon hendersonii V. Holt 1946-4-16 Yuba Smartsville. 313 Comment
  UCD118967  Dodecatheon hendersonii Barbara Yungert 1974-4-8 9 Yuba West of Forbes Hill Road, H-9 project area, Sierra Foothill Field Station. Comment
  CHSC43509  Dopatrium junceum Lowell Ahart 1977-8-31 1559 Yuba On Shintaffer Farms, about 2 miles north-east of Marysville. 27 Comment
  UCR168801  Downingia David Charlton 2005-5-16 8029 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  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
  JEPS108500  Downingia bicornuta var. bicornuta Lisa Schultheis 1996-5-23 304 -96 Yuba Beale Air Force Base. Comment
  UC718544  Downingia bicornuta var. picta Carl B. Wolf 1937-5-18 Yuba 2 mi s Marysville; Sacramento Valley 18 Comment
  CHSC97492  Downingia ornatissima var. ornatissima Lowell Ahart 2007-5-12 13785 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113471  Downingia ornatissima var. ornatissima Lowell Ahart 2007-5-12 13785 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS108494  Downingia ornatissima var. ornatissima Lisa Schultheis 1996-5-23 305 -95 Yuba Beale Air Force Base. Comment
  CHSC84982  Draperia systyla Lowell Ahart 2003-10-11 10625 Yuba On the east margins of a gravel road to the Rose Ranch, about 100 yards west of the paved road to Scales, about 1/2 mile south of the Rose Ranch, about 5 miles (air) northeast of Strawberry Valley, about 7 miles (air) southwest of La Porte. 1219 Comment
  POM161767  Draperia systyla R. C. Bacigalupi 1927-7-2 1589 Yuba Highway to Downieville about 8 mi NE of Camptonville. 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
  CAS-BOT-BC428064  Dudleya cymosa subsp. cymosa Barbara T. Keller 1975-6-10 1511 Yuba Willow Glen Road from Stanfield Hill to Brownsville, about 11.5 mi. north of junction of Willow Glen Road and Marysville Road. Comment
  UCD98749  Dysphania botrys Henry Michalk 1964-11-17 s.n. Yuba just north of Yuba River, ca. 3 miles north of North San Juan, State Highway 49. 609 Comment
  JEPS121311  Dysphania pumilio Lowell Ahart 2013-11-30 19306 Yuba On the N side of Dry Creek, below the high water line of Collins Lake, about 300 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  UCD98836  Dysphania pumilio J. M. Tucker 1974-9-14 4341 Yuba At Rose Ranch, ca. 8 miles (by winding dirt road) northeast of Strawberry Valley, on Sierra-Yuba county line. Comment
  CHSC96872  Echinochloa colona Lowell Ahart 2007-6-30 14233 Yuba Near a new ditch, near and east of a new road pad, about 350 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113486  Echinochloa colona Lowell Ahart 2007-6-30 14233 Yuba Near a new ditch, near and east of a new road pad, about 350 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS113716  Echinochloa colona Lowell Ahart 2007-6-30 14230 Yuba Sides of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  RSA726850  Echinochloa colona L. Ahart 2007-6-30 14233 Yuba About 13 miles (air) northeast of Marysville. 29 Comment
  HSC9654  Echinochloa crus-galli T. F. Newman 1965-8-22 6564 Yuba Carnes Ranch, 10 mi. N of Marysville Comment
  RSA749526  Echinochloa crus-galli George K. Helmkamp, E. A. Helmkamp 2008-10-6 14208 Yuba Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  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
  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
  CHSC46020  Elatine chilensis Lowell Ahart 1978-4-14 1637 Yuba Rice field west of Kimball Lane, on the property of Shintaffer Farms, Inc., about 2 miles north-east of Marysville. 30 Comment
  CHSC76278  Elatine heterandra Lowell Ahart 1999-9-17 8252 Yuba Sam Shintaffer Farm, south of Woodruff Lane, south of Mathews Road, about 1/2 mile south of Sam Shintaffer's rice dryer, about 4-1/2 miles (air) northeast of Marysville. 24 Comment
  CAS-BOT-BC113669  Eleocharis Beecher Crampton 1966-6-14 7751 Yuba 1 mi E of Brownsville, La Porte Road. Comment
  SEINET7583427 Image available Eleocharis acicularis Lowell Ahart 2000-6-11 8471 Yuba East side of small wash, west of Smartville Road, about 1/8 mile southwest of the intersection of Waldo Road and Smartville Road, about 8 miles (air) south of Smartville. 99 Comment
  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
  CHSC78179  Eleocharis acicularis var. occidentalis Lowell Ahart 2000-6-11 8471 Yuba On the east side of a small wash, west of Smartville Road, about 1/8 mile southwest of the intersection of Waldo Road and Smartville Road, about 8 miles (air) south of Smartville. 99 Comment
  CHSC116314  Eleocharis bella Lowell Ahart 2015-11-19 20672 Yuba 100 yards or more north of the spillway area, below the high water line, west side of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  JEPS98364  Eleocharis bella Lowell Ahart 2000-6-23 8507 A Yuba 3 mi NE of Strawberry Valley (on a dirt road,100 yds E of the meadow along La Porte Road,100 yds N of Scales Road) 1219 Comment
  SEINET3441885  Eleocharis bella Unknown 2000-6-23 8507 Yuba Strawberry Valley, Strawberry Valley, about 3 miles northeast, about 100 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road 1210 Comment
  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
  CHSC84466  Eleocharis bolanderi Lowell Ahart 2003-7-6 10362 Yuba In meadow, east of the power line, about 60 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  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
  CHSC83029  Eleocharis engelmannii Lowell Ahart 2002-10-9 9950 Yuba Area south of a spring, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS103479  Eleocharis engelmannii Lowell Ahart 2002-10-9 9950 Yuba Area S of a spring, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CAS-BOT-BC113033  Eleocharis macrostachya Gordon H. True; John Thomas Howell 1970-5-29 5423 Yuba Artificial lake ca. 1 mi. NW of Spenceville (site) on Cox Creek. 152 Comment
  JEPS113715  Eleocharis macrostachya Lowell Ahart 2007-6-30 14235 Yuba West side of a new ditch, near and west of a new road pad, about 350 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS98299  Eleocharis macrostachya Lowell Ahart 2000-7-13 8579 Yuba In a small meadow, on the south side of Ridge Road, about 1/4 mile west of Our House, about 2 miles (air) east of Celestial Valley, about 2 1/2 miles (air) southeast of Camptonville. 975 Comment
  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
  CDA38958  Eleocharis montevidensis L. Ahart 2003-7-6 10362 Yuba East of the power line, about 50 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. Comment
  SEINET13709409  Eleocharis montevidensis Lowell William Ahart, Lowell William Ahart 2003-1 10362 Yuba 5 Air Mi. N of Dobbins, Near Fountain Hill Road (39 Deg 26'11.7"N, 121 Deg 12'07.3"W) 2746 Ft. 837 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
  JEPS124259  Eleocharis obtusa Lowell Ahart 2015-11-19 20689 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  UCR118905  Eleocharis obtusa Beecher Crampton 1966-6-14 7757 Yuba Central Sierra Nevada foothills, 1 Mile east of Brownsville on La Porte Road. 732 Comment
  CHSC78299  Eleocharis pachycarpa Lowell Ahart 2000-6-19 8490 Yuba Along a south branch of Dry Creek, on the south side of Marysville Road, about 1/4 mile west of the intersection of Marysville Road and Frenchtown Road, west of Oregon House, about 2 miles east of Collins Lake. 457 Comment
  JEPS103481  Eleocharis pachycarpa Lowell Ahart 2002-10-9 9949 Yuba Area S of a spring, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  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
  JEPS98594  Eleocharis pachycarpa Lowell Ahart 2000-6-19 8490 Yuba Along a S branch of Dry Creek, on the S side of Marysville Road, ca 1/4 mile W of the intersection of Marysville Road and Frenchtown Road, W of Oregon House, ca 2 miles E of Collins Lake. 457 Comment
  SD131013  Eleocharis pachycarpa Gordon H. True, John Thomas Howell 1970-5-29 5422 Yuba Artificial lake ca. 1 mile northwest of Spenceville (site) on Cox Creek. In wet soul and shallow water at edge of lake. 152 Comment
  CAS-BOT-BC113119  Eleocharis pachycarpa Gordon H. True; John Thomas Howell 1970-5-29 5422 Yuba Artificial lake ca. 1 mi NW of Spenceville (site) on Cox Creek. 152 Comment
  HSC97768  Eleocharis pachycarpa L. Ahart 2000-6-19 8490 Yuba S branch of Dry Creek, S side of Marysville Rd., 1/4 mi. W of intersection of Marysville Rd. and Frenchtown Rd., W of Oregon House, 2 mi. E of Collins Lake 457 Comment
  SEINET7586814 Image available Eleocharis pachycarpa Lowell Ahart 2000-6-19 8490 Yuba Along a south branch of Dry Creek, on the south side of Marysville Road, about 1/4 mile west of the intersection of Marysville Road and Frenchtown Road, west of Oregon House, about 2 miles east of Collins Lake. 457 Comment
  RSA0012078  Eleocharis palustris George K. Helmkamp, E. A. Helmkamp 2011-5-6 17206 Yuba junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg ) of Wheatland. 56 Comment
  SEINET3441893  Eleocharis palustris Unknown 2000-7-13 8579 Yuba College Station, College Station, Rock Prairie Road, about 2 miles south of the junction with Green's Prairie road, near old parking lot at Lick Creek Park 970 Comment
  CHSC78303  Eleocharis quinqueflora Lowell Ahart 2000-6-23 8506 Yuba Bog in a small meadow, about 80 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  CHSC78304  Eleocharis quinqueflora Lowell Ahart 2000-6-23 8506 A Yuba In a small meadow, about 100 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  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
  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
  CDA38986  Eleocharis quinqueflora L. Ahart 2000-5-25 8398 Yuba A north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. Comment
  JEPS98296  Eleocharis quinqueflora Lowell Ahart 2000-7-13 8578 Yuba small meadow on S side of Ridge Road, 1/4 mi W of Our House, 2 air mi E of Celestial Valley, 2 1/2 air mi SE of Camptonville 975 Comment
  RSA716309  Eleocharis quinqueflora L. Ahart 2000-6-19 8493 Yuba About 100 yards north of New York Flat Road, about 1.25 miles (air) northeast of Brownsville, about 2.25 miles (air) west of Challenge 732 Comment
  CDA36342  Elodea nuttallii Jonathan Heintz 2011-12-14 PDR# 1322430 Yuba Browns Valley, 9659 Stern Lane. 0 Comment
  POM319561  Elymus Patricia Wilder 1971-6-23 5198 Yuba About two miles southeast of Forbestown on Challenge Cut-off Road; West slope of the Sierra Nevada Mt. Range 762 Comment
  CHSC107313  Elymus caput-medusae L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10370 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. 750 Comment
  CAS-BOT-BC203409  Elymus glaucus subsp. glaucus Lowell Ahart 1980-8-12 2566 Yuba Along Slate Creek 1250 Comment
  JEPS118046  Elymus glaucus subsp. glaucus Lowell Ahart 2011-6-7 17423 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  SBBG121208  Epilobium L. Ahart 2007-5-12 13800 Yuba ca. 30 feet E of a culvert, ca. 50 yards N of the second power tower, ca. 400 yards N of Fruitland Rd, ca. 13 m NE of Marysville 28 Comment
  CHSC76285  Epilobium brachycarpum Lowell Ahart 1999-9-17 8255 Yuba On the edge of a drain ditch, San Shintaffer Farm, on the west side of Kimball Lane, near the intersection of Kimball Lane and Hallwood Blvd., about 3/4 mile south of Sam Shintaffer's rice dryer, about 4 1/4 miles (air) northeast of Marysville. 22 Comment
  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
  UCD80478  Epilobium ciliatum subsp. ciliatum CNPS SN Foothill Team 2005-7-5 SNNR 0467 b Yuba CDFG Daugherty Hill Wildlife Area. 278 Comment
  UCD80486  Epilobium ciliatum subsp. ciliatum CNPS SN Foothill Team 2005-7-5 SNNR 0473 b Yuba CDFG Daugherty Hill Wildlife Area. 280 Comment
  CHSC73421  Epilobium ciliatum subsp. glandulosum B. Castro; L. Gehrung 1995-8-9 600 Yuba Fish Mdw. Ca 5 air mi NE of Strawberry Valley, and ca 1.5 mi E of Slate Ck. Ini meadow on unnamed stream flowing S into Canyon Ck, ca 500 ft W of USFS Rd 20N35 via unnamed dirt rd. In lower end of meadow near stream channel. 1249 Comment
  CHSC83069  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2002-10-9 9957 Yuba Along Lost Creek, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CHSC84172  Epilobium densiflorum Lowell Ahart 2003-7-17 10413 Yuba On the sides of a stream, on the west side of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 129 Comment
  JEPS38236  Epilobium densiflorum W. L. Jepson 1934-7-29 16764 Yuba Smartsville 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
  CHSC32095  Epilobium minutum L. Ahart 1973-5-6 210 Yuba Near Challenge. 762 Comment
  UCD106520  Epilobium minutum Barbara Yungert 1975-4-28 69 Yuba Sierra Foothill Field Station. 100 meters E of central picnic area, 60 meters from Yuba River, H 8-11 project area. 152 Comment
  RSA726849  Epilobium pygmaeum L. Ahart 2007-6-30 14226 Yuba About 13 miles (air) northeast of Marysville. 30 Comment
  CAS-BOT-BC171857  Epilobium septentrionale Dan Campbell 1976-9-3 s.n. Yuba Just southwest of Camptonville 762 Comment
  CAS-BOT-BC165951  Epilobium torreyi Lowell Ahart 2007-5-12 13800 Yuba About 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS113476  Epilobium torreyi Lowell Ahart 2007-5-12 13800 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC43345  Equisetum hyemale subsp. affine Lowell Ahart 1977-4-17 1313 Yuba Along a small branch of Dry Creek, about 1 mile south of Challenge, about 1 1/2 miles west of Pike County Peak. 548 Comment
  UCD135395  Equisetum hyemale subsp. affine Kathleen Keliher 1975-4-30 79 Yuba Ca. 200 feet from Marysville Road near Oregon Creek. 762 Comment
  CAS-BOT-BC57515  Equisetum telmateia John Thomas Howell 1951-8-21 28287 Yuba Near Camptonville 762 Comment
  SEINET10717829  Eragrostis Lowell Ahart 2007-11-13 Ahart 14599 Yuba T13N, R6E, southwest 1/4 Section 19. On the west side of Camp Far West Road, at the north edge of the town of Sheridan. 35 Comment
  UCD63095  Eragrostis curvula Beecher Crampton 1974-10-11 9093 Yuba 2 miles southeast of Brown's Valley along Hwy. 20. 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
  UCD63879  Eragrostis mexicana subsp. virescens F. L. Smith 1945-10-4 Yuba Marysville, 2 miles north. 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
  JEPS113512  Eremocarpus setiger Lowell Ahart 2007-5-12 13790 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CAS-BOT-BC131512  Ericameria arborescens Carl B. Wolf; E. R. Johnson 1934-10-4 6153 Yuba Texas Hill, about 2 miles from Dobbins 457 Comment
  CHSC112953  Ericameria arborescens L. P. Janeway 2014-11-6 11582 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 2.1 air km south-southwest of Oregon Peak, 0.2 km north of Marysville Road. 762 Comment
  OBI5769  Ericameria arborescens Carl B. Wolf 1934-10-4 6153 Yuba Texas Hill, about 2 mi from Dobbins 457 Comment
  CDA4932  Erigeron divergens Unknown 1925-5-16 1660 Yuba Marysville. 0 Comment
  UCD131914  Erigeron foliosus Barbara Yungert 1974-5-23 173 Yuba along road near powerhouse, below Englebright Dam, Sierra Foothill Field Station. Comment
  JEPS104396  Erigeron inornatus var. inornatus Lowell Ahart 2003-7-6 10358 Yuba Near a meadow, e of the power line, ca 60 yd w of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  CHSC70223  Erigeron petrophilus var. sierrensis B. Castro; R. Fallscheer, R. Zebell 1989-8-7 366 Yuba Ca 2.5 air mi S of Bucks Lake, on the south flank of Red Mtn, at jcn USFS Rds 23N18, 23N15, and 23N69. Comment
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Jul 16 2007
  CHSC96977  Erigeron philadelphicus Lowell Ahart 2007-8-7 14427 Yuba About 200 yards south of Hampshire Creek Meadow, about 30 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  SBBG8139  Erigeron philadelphicus H. and M. Dearing 1939-5-6 3285 Yuba near Challenge Comment
  CAS-BOT-BC214557  Erigeron philadelphicus Alice Eastwood 1921-5-22 10573 Yuba Los Vergils Comment
  RSA21288  Erigeron philadelphicus C. B. Wolf 1937-5-13 8633 Yuba Sierra Nevada Foothills, 2 miles above Browns Valley on road to Stanfield Hill. 122 Comment
  JEPS100495  Erigeron reductus var. reductus Dean W. Taylor 2001-6-21 17812 Yuba canyon of the North Fork Yuba River, near the confluence of Canyon Creek at Kelly Bar Comment
  CHSC76269  Erigeron sumatrensis Lowell Ahart 1999-9-17 8254 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 San Shintaffer's rice dryer, about 4 1/4 miles (air) northeast of Marysville. 22 Comment
  CHSC43348  Eriodictyon californicum Lowell Ahart 1976-5-6 1092 Yuba Near the Brownsville dump, along Ponderosa Way. 487 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
  CHSC96478  Eriodictyon californicum Lowell Ahart 2007-4-17 13688 Yuba On the north side of the poor dirt fireguard, about 50 yards northwest of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  UC1124296  Eriodictyon californicum M. A. Elvin 1933-6-23 31 Yuba 1 mi w Hansonville; Smartsville Quad. Comment
  UC410442  Eriodictyon californicum Alice Eastwood 1930-4-12 Yuba Comment
  UCD119302  Eriodictyon californicum Barbara Yungert 1974-4-22 78 Yuba Along four wheel drive jeep road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UCD168071  Eriogonum nudum var. nudum James Neilson 1961-10-16 464 Yuba 1/2 mile west of Brown's Valley Rd. (Exact location unknown. Coordinates estimated by label maker.) Comment
  CHSC69142  Eriogonum nudum var. oblongifolium Lowell Ahart 1997-8-7 7834 Yuba On the north side of the dirt road, northwest of the bridge across Indian Creek, about 3 miles (air) east of Challenge. 762 Comment
  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
  CHSC83009  Eriogonum umbellatum var. ahartii Lowell Ahart 2002-9-8 9935 Yuba Along a wash, on the north side of the dirt road, about 1 mile southeast of Woodleaf, about 3 miles (air) northeast of Challenge. 1001 Comment
  CHSC95082  Eriogonum umbellatum var. ahartii L. P. Janeway 2006-7-18 8815 Yuba Northern High Sierra Nevada. Along the '107' road, overlooking Golden Gate Ravine from the south; 2.4 km north-northeast of Challenge and 2.4 km southwest of Woodleaf. Small serpentine area along dirt road, northwest-facing. 937 Comment
  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
  JEPS95143  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-8-7 7835 Yuba about 3 air mi e of Challenge (on n side of dirt road, nw of the bridge across Indian Creek) 762 Comment
  UCR263571  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-8-30 7875 Yuba Sierra Nevada Mtns., in the gutter on the north side of Forbestown Road, just west of Costa Creek, about 2.5 miles (air) southeast of Forbestown 854 Comment
  SEINET7856757  Eriogonum umbellatum var. ahartii L. Ahart 1997-8-7 7835 Yuba About 3 miles (air) E of Challenge, on the N side of the dirt road, NW of the bridge across Indian Creek. 762 Comment
  SD147528  Eriogonum umbellatum var. speciosum Lowell Ahart 1980-8-12 2526 Yuba Sierra Nevada: Ca. 2 miles south-east of Woodleaf. 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-BC308241  Eriophyllum lanatum var. grandiflorum Alice Eastwood 1921-5-22 10539 Yuba Los Vergils Comment
  CAS-BOT-BC308243  Eriophyllum lanatum var. grandiflorum Mrs. J. E. Cramsie 1923-5-22 s.n. Yuba Smartsville Comment
  CHSC112961  Eriophyllum lanatum var. grandiflorum L. P. Janeway 2014-7-2 11433 Yuba Northern High Sierra Nevada. Plumas National Forest; Peterson Ridge Road rounding the southeast-trending ridge between Indian Creek and the un-named creek south of that; 2.4 air-km east of Pike County Peak. 820 Comment
  JEPS95034  Eriophyllum lanatum var. grandiflorum Lowell Ahart 1997-8-7 7825 Yuba about 3 air mi se of Challenge (on e side of the dirt road, near an unnamed stream, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  UCD132217  Eriophyllum lanatum var. grandiflorum W. R. Powell 1968-5-15 1493 a Yuba on Fountain House Road, 2 miles northeast of Dobbins. 792 Comment
  UCD132221  Eriophyllum lanatum var. grandiflorum Barbara Yungert 1974-5-4 117 Yuba north side of Yuba River, F-2 project area, Sierra Foothill Field Staion. Comment
  CHSC108199  Erodium botrys Lowell Ahart 2011-6-7 17402 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS118306  Erodium botrys Lowell Ahart 2011-6-7 17402 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  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
  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
  UCD103243  Erodium cicutarium Barbara Yungert 1974-4-8 5 Yuba Sierra Foothill Field Station. Along Porter Creek, south of station, near bridge at east end. Comment
  JEPS113510  Erodium moschatum Lowell Ahart 2007-5-14 13879 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  UC1122964  Eryngium castrense M. A. Elvin 1933-6-7 23 Yuba 3 mi. s.e. of O'Brien's Ranch Smartsville Quad. Comment
  UC1167729  Eryngium castrense Peter H. Raven with Otto T. Solbrig 1959-6-15 13225 Yuba 9.4 mi. s. Marysville (U.S. Hwy. 99E) Comment
  CDA18858  Eryngium castrense J. Horenstein 1999-6-9 s.n. Yuba NE of Cock's Creek, Spenceville Wildlife Area. 0 Comment
  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
  UCD21177  Eryngium castrense Vernal Pool Team 2002; Carol Witham and Jennifer Buck 2002-6-5 352 Yuba Beale Air Force Base, North Beale Road. UTMs 10S0646172; 4300072. Comment
  CAS-BOT-BC54684  Erysimum capitatum Gordon H. True 1962-5-1 552 Yuba Sierra Nevada. On Comptonville-Downieville Highway. About 1 mile north of Comptonville. Comment
  CAS-BOT-BC54686  Erysimum capitatum Daniel Campbell 1974-6-10 s.n. Yuba Sierra Nevada. Highway 49, 1 mile south of Comptonville. Comment
  UCR194897  Erysimum capitatum var. capitatum George K. Helmkamp, E. A. Helmkamp 2007-5-26 12142 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, just north of the Nevada Co. line; beside Oregon Creek and Oregon Creek campground 430 Comment
  CHSC118502  Erythranthe bicolor L. P. Janeway 2016-5-11 11958 Yuba Northern High Sierra Nevada. Plumas National Forest; near head of eastern tributary of Indian Creek; west side of Road 19N53 0.4 road-km south of Road 20N13. 920 Comment
  CHSC63275  Erythranthe bicolor Lowell Ahart 1994-6-5 7293 Yuba On the north side of Costa Creek, on the north side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  CHSC90345  Erythranthe geniculata Lowell Ahart 2005-3-11 11608 Yuba West of a poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 395 Comment
  CHSC110465  Erythranthe guttata L. P. Janeway 2013-7-24 11188 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow near headwaters of a northeastern tributary to Hampshire Creek, 1.8 km north of North Yuba River and 1.0 km east-northeast of Hampshire Creek Meadow. 1102 Comment
  CAS-BOT-BC153602  Erythranthe moniliformis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54089 Yuba 3.6 mi. ne. of Strawberry Valley on La Porte - Quincy road 1280 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
  CAS-BOT-BC502830  Erythronium multiscapideum Elmer I. Applegate 1929-5-1 5555 Yuba 5 miles north of San Juan, north fork Yuba River, near log cabin Comment
  CAS-BOT-BC502831  Erythronium multiscapideum Lowell Ahart 1982-5-8 3424 Yuba 4 miles east of Forbestown 825 Comment
  CDA39344  Erythronium multiscapideum Yuba County School Children 1930-4-12 s.n. Yuba [No further data.] 0 Comment
  SJSU8125  Erythronium multiscapideum J. B. Willis Jr. 1969-4-19 Yuba Marysville Rd 0.5 mi W of Oregon House P.O., 7.5 mi W of Dobbins Comment
  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
  JEPS107321  Eschscholzia caespitosa Lowell Ahart 2005-3-11 11615 Yuba Large rock outcrop, south slope, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica 395 Comment
  UCD95349  Eschscholzia californica Barbara Yungert 1974-4-14 30 Yuba along west side of Road 4, L 1-21 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC419483  Eschscholzia lobbii Carl B. Wolf 1937-5-12 8630 Yuba Sacramento Valley, 4 mi. NE. of Wheatland on road to Grass Valley 60 Comment
  OBI11756  Eschscholzia lobbii Carl B. Wolf 1937-5-12 8630 Yuba Sacramento Valley, 4 mi NE of Wheatland on road to Grass Valley 61 Comment
  JEPS95342  Euphorbia crenulata Lowell Ahart 1994-6-5 7296 Yuba 3 air miles E of Forbestown (N side of Costa Creek, S side of Forbestown Road) 853 Comment
  CHSC68476  Euphorbia peplus Lowell Ahart 1997-4-6 7717 Yuba On the south side of the road, east of the intersection of Scott Forbes Road and Peoria Road, just southeast of the bridge across Dry Creek, about 14 miles northeast of Marysville. 60 Comment
  CDA4860  Euphorbia peplus R. Noise 1960-3 Yuba 0 Comment
  UCD169274  Euphorbia serpillifolia Lowell Ahart 2013-11-30 19299 Yuba Willow Glen Creek, northwest of Dry Creek, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  JEPS95139  Euphorbia spathulata Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7719 Yuba about 17 mi ne of Marysville (on s side of a poor dirt road, about 1/2 mi e of Scott Forbes Road (Long Bar Road) s of Dry Creek) 137 Comment
  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
  CAS-BOT-BC459238  Euthamia occidentalis Lowell Ahart 1978-9-24 s.n. Yuba 2 miles NE of Marysville on Sam Shintaffer Farm 35 Comment
  CHSC107155  Festuca myuros L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10371 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants common throughout the meadow. 750 Comment
  CHSC44567  Festuca occidentalis Lowell Ahart 1979-6-25 1938 Yuba About 1 mile south of Challenge. 640 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
  CHSC112857  Fragaria vesca L. P. Janeway 2014-4-15 11229 Yuba Northern High Sierra Nevada. Plumas National Forest; east edge of Milk Ranch Meadow; on a low gap between an unnamed tributary of Little Oregon Creek to the west and an unnamed tributary of New Bullards Bar Reservoir (North Yuba River) to the east; along an eastern extension of Fountain House Road. 739 Comment
  CHSC33580  Fragaria vesca M. S. Taylor 1981-4-22 3554 Yuba E side of Empire Rd, ca. 0.5 mi s of its jct with Laporte Rd, ca. 1 mi sw of Woodleaf. 975 Comment
  CAS-BOT-BC454547  Fragaria vesca subsp. californica Lowell Ahart 1968-4-20 s.n. Yuba Five miles southeast of Challenge 457 Comment
  CAS-BOT-BC53659  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1447 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-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-BC53668  Frangula californica subsp. tomentella Carl B. Wolf; E. R. Johnson 1934-10-4 6155 Yuba Sierra Nevada Foothills. Texas Hill, 2 mi. W. of Dobbins 457 Comment
  CHSC108173  Frangula californica subsp. tomentella L. P. Janeway 2011-8-15 10652 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 1.9 air km south-southwest of Oregon Peak, 0.3 km north of Marysville Road. Southwest edge of meadow area, where seasonal drainage occurs and in sheetlfow parts of the meadow. 750 Comment
  OBI6059  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba Browns Valley to Smartsville rd, along left bank of Yuba river, near bridge 152 Comment
  SBBG27475  Frangula californica subsp. tomentella C. B. Wolf, E. R. Johnson 1934-10-4 6155 Yuba Texas Hill, 2 mi W of Dobbins 457 Comment
  SD22794  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-5 1444 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  UCD112769  Frangula californica subsp. tomentella D. H. Hartmann 1941-10-11 s.n. Yuba 2 miles west of Smartsville. Comment
  CHSC110466  Frangula purshiana subsp. annonifolia L. P. Janeway 2013-7-24 11190 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow near headwaters of a northeastern tributary to Hampshire Creek, 1.8 km north of North Yuba River and 1.0 km east-northeast of Hampshire Creek Meadow. 1102 Comment
  CHSC107295  Frangula rubra subsp. obtusissima L. P. Janeway 2011-8-10 10638 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
  CHSC107277  Frangula rubra subsp. rubra L. P. Janeway 2011-8-10 10639 Yuba Northern High Sierra Nevada. Plumas National Forest; serpentine slope on southeast side of Road 19N04 1.3 km north of Challenge-La Porte Road; 2.2 air km northeast of Challenge. 1023 Comment
  CHSC110321  Frangula rubra subsp. rubra L. P. Janeway 2013-6-7 11136 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, one of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. 815 Comment
  CAS-BOT-BC223487  Fraxinus latifolia Alice Eastwood 1913-7-3 3408 Yuba Wheatland Comment
  UC1123378  Fraxinus latifolia M. A. Elvin 1933-6-23 30 Yuba 1 mi w Hansonville; Smartsville Quad. 426 Comment
  CHSC47512  Fremontodendron californicum Lowell Ahart 1975-6-25 810 Yuba East of Ponderosa Way, near the Brownsville dump, about 2 miles south-west of Brownsville. 518 Comment
  CHSC88993  Fremontodendron californicum L. Hanson 1984-5-21 244 Yuba Plumas National Forest. Brownsville Dump. 640 Comment
  CHSC89019  Fremontodendron californicum L. Hanson 1984-5-21 243 Yuba Plumas National Forest. Brownsville Dump. 457 Comment
  CAS-BOT-BC205978  Fremontodendron decumbens G. L. Stebbins 1966-5-22 6417 Yuba Near Dobbins, beside city dump 524 Comment
  CAS-BOT-BC136095  Fritillaria affinis Volney Rattan 1880-1-1 s.n. Yuba Brownsville Comment
  CHSC115206  Fritillaria eastwoodiae Lowell Ahart 2015-4-30 20127 Yuba On the south side of the gravel road, about 10 yards east of the gate, about 3/4 mile (air) southeast of Woodleaf. 948 Comment
  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
  CAS-BOT-BC506160  Fritillaria micrantha Volney Rattan 1880-1-1 s.n. Yuba Brownsville Comment
  CAS-BOT-BC506163  Fritillaria micrantha Jokerst; Ahart 1984-3-20 JDJ 1946 Yuba East side of Ponderosa Road 0.3 mile south of its junction with Robinson Mill Road Comment
  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
  SJSU8741  Fritillaria micrantha N. A. Hopkins 1980-4-13 968 Yuba 40' above McCabe Cr c. 3 airline miles W of Forbestown 548 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
  SBBG1013  Fritillaria recurva H. and M. Dearing 1939-5-6 3290 Yuba near Brownsville 609 Comment
  UCD139681  Fritillaria recurva Kathleen Keliher 1975-5-15 111 Yuba 10 yards above roadside of Peterson Ridge Road, 1 mile from Oregon House Road. 762 Comment
  UCD112041  Galium Christopher Mallek 2008-5-5 IC3- 2 Yuba Indiana Creek. 617 Comment
  UCD121740  Galium aparine Barbara Yungert 1974-4-12 21 Yuba North of Yuba River, Sierra Foothill Field Station. Comment
  UCD80743  Galium bolanderi CNPS SN Foothill Team 2005-5-31 SNFN 0330 d Yuba BLM, Ponderosa Landfill, near the southeast corner of the parcel (east of the defunct landfill). 685 Comment
  JEPS118056  Galium divaricatum Lowell Ahart 2011-6-7 17412 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  JEPS62620  Galium divaricatum John Thomas Howell and Gordon H. True 1967-6-13 3572 Yuba river e Wheatland; Bear River, Camp Far West Reservoir 60 Comment
  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
  JEPS113578  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
  CHSC78165  Galium murale Lowell Ahart 2000-5-25 8395 Yuba Bank of a large wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  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
  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
  RSA726440  Galium sparsiflorum subsp. glabrius L. Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14499 Yuba About 1 mile (air) east of Clipper Mills. 1016 Comment
  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
  JEPS94447  Gamochaeta ustulata Lowell Ahart 1997-8-30 7880 Yuba about 1 air mi s of Woodleaf (on the w side of the dirt road, near a road culvert) 944 Comment
  CHSC43327  Garrya fremontii Lowell Ahart 1976-4-15 1076 Yuba About 2 miles west of Brownsville, near the Brownsville Dump. 457 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
  UCD66544  Gastridium phleoides Beecher Crampton 1957-6-5 4120 Yuba 10 miles E of Marysville. Along State Hwy. 20. Comment
  CDA43461  Gaura drummondii E. Storm 2015-9-16 PDR# 580 P06131314 Yuba Marysville; C Street. 0 Comment
  UCD37890  Geranium dissectum Beecher Crampton 1962-4-24 6316 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCR231325  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 2011-5-6 17203 Yuba East edge of Sacramento Valley, junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg. ) of Wheatland 56 Comment
  UCD103353  Geranium dissectum Kathleen Keliher 1975-5-15 106 Yuba Along Marysville Road, 1.5 miles east of Dobbins. 502 Comment
  UCD103396  Geranium dissectum Barbara Yungert 1974-4-25 80 Yuba Sierra Foothill Field Station. Near Four Wheel Drive Road, SC-14 project area. Comment
  UCD103447  Geranium molle Barbara Yungert 1974-4-25 79 Yuba Near four wheel drive road, SC-14 project area, Sierra Foothill Field Station. Comment
  UCR195173  Gilia capitata subsp. pedemontana George K. Helmkamp, E. A. Helmkamp 2007-5-26 12144 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, just north of the Nevada Co. line; beside Oregon Creek and Oregon Creek campground 430 Comment
  SEINET10464593  Githopsis specularioides Yungert 1974-5-3 YUNGERT 107 Yuba Near cattle guard and U.C. sign, west of station, Sierra Foothill Field Station Comment
  SEINET10972189  Githopsis specularioides Keliher 1975-5-3 KELIHER 86 Yuba Higher Cook Road, K 1-11 Project Area, Sierra Foothill Field Station 229 Comment
  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
  CHSC97745  Glinus lotoides Lowell Ahart 2007-11-8 14582 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  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
  JEPS95807  Glyceria declinata Lowell Ahart 1999-9-17 8248 Yuba Sam Shintaffer Farm; south of Woodruff Lane; south of Mathews Road; 100 yards south of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  UCD14575  Glyceria declinata John 'Jack' F. Williams 1984-3-1 s.n. Yuba Yuba County: Comment
  UCD66834  Glyceria elata Beecher Crampton 1966-6-14 7748 Yuba 1 mile east of Brownsville. 731 Comment
  CAS-BOT-BC303348  Gnaphalium palustre Lowell Ahart 1980-8-12 2564 Yuba Along Slate Creek 1250 Comment
  CDA6022  Gnaphalium palustre L. Ahart 2002-10-9 9952 Yuba Wet area along Lost Creek, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. Comment
  CHSC46928  Gnaphalium palustre Lowell Ahart 1980-8-12 2564 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
  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
  CHSC97644  Gnaphalium palustre Lowell Ahart 2007-5-12 13769 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113625  Gnaphalium palustre Lowell Ahart 2007-5-12 13769 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UCD132545  Grindelia camporum Barbara Yungert 1974-5-31 190 Yuba along road, near fence between SC-2 and SC-5 project areas, Sierra Foothill Field Station. Comment
  CAS-BOT-BC314672  Grindelia hirsutula John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54072 Yuba 1.4 miles southwest of Bullards Bar Dam, on road to Challenge 609 Comment
  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
  CHSC97681  Hainardia cylindrica Lowell Ahart 2007-5-12 13825 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  RSA726545  Hainardia cylindrica L. Ahart 2007-5-12 13825 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  CHSC115890  Hastingsia alba L. P. Janeway 2015-7-1 11792 Yuba Northern High Sierra Nevada. Plumas National Forest; Forbestown, 120 m southwest of Challenge Cut-Off Road and 0.6 km southeast of its junction with Forbestown Road.; springy area at headwaters of a northeastern tributary of New York Creek. 817 Comment
  CHSC68468  Hedypnois cretica Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7724 Yuba On the bank of the Browns Valley Water Ditch, north of the poor dirt road, south of Dry Creek, about 1 1/4 miles east of Scott Forbes Road (long Bar Road), about 17 miles northeast of Marysville. 198 Comment
  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-BC306332  Hedypnois cretica W. P. Vestal; A. G. Vestal 1947-4-30 s.n. Yuba About 5.1 miles west of Smartsville Comment
  CAS-BOT-BC306334  Hedypnois cretica Gordon H. True 1963-4-17 1164 Yuba About 14 miles east of Marysville, on Marysville-Grass Valley Hwy. 60 Comment
  CAS-BOT-BC306335  Hedypnois cretica Gordon H. True 1963-4-17 1165 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Hwy. 30 Comment
  CAS-BOT-BC306336  Hedypnois cretica B. Crampton 1957-6-5 4130 Yuba 2.6 miles northeast of Brown's Valley Post Office Comment
  RSA115530  Hedypnois cretica Beecher Crampton 1957-6-5 4130 Yuba 2.6 miles NE Brown's Valley post office. Comment
  RSA21287  Hedypnois cretica C. B. Wolf 1937-5-13 8631 Yuba Sierra Nevada Foothills, 2 miles above Browns Valley on road to Stanfield Hill. 122 Comment
  UCD131699  Hedypnois cretica Beecher Crampton 1957-6-5 4130 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  UCD132676  Hedypnois cretica Barbara Yungert 1974-5-8 132 Yuba along four wheel drive road, north side of Yuba River, Sierra Foothill Field Station. Comment
  CHSC116584  Helenium bigelovii L. P. Janeway 2015-7-1 11794 Yuba Northern High Sierra Nevada. Plumas National Forest; Forbestown, 120 m southwest of Challenge Cut-Off Road and 0.6 km southeast of its junction with Forbestown Road; spring area at headwaters of a northeastern tributary of New York Creek. 817 Comment
  CHSC116114  Helenium puberulum Lowell Ahart 2015-11-18 20660 Yuba Marsh like area on the west side of the Feather River, about 1/2 mile south of Palm Avenue, about 1-1/2 miles southeast of the intersection of Palm Avenue and Larkin Raod, about 5 miles (air) northeast of Gridley. 26 Comment
  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
  CAS-BOT-BC309977  Hemizonia congesta subsp. luzulifolia C. B. Wolf; B. D. Stark 1933-9-25 5504 Yuba Marysville Airport, 2 mi. N. of Marysville, Sacramento Valley 22 Comment
  UC718034  Hemizonia congesta subsp. luzulifolia C. B. Wolf, and B. D. Stark 1933-9-25 Yuba 2 mi n Marysville (Marysville Airport); Sacramento Valley 15 Comment
  CAS-BOT-BC309979  Hemizonia congesta subsp. luzulifolia J. Clausen 1932-9-16 656 Yuba 5.4 miles southeast of Marysville on the road to Wheatland Comment
  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
  RSA726567  Hesperevax caulescens L. Ahart 2007-5-12 13775 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  LA6491  Hesperocyparis macnabiana Carl Epling; June 1938 sn Yuba near Brownsville Comment
  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
  JEPS95854  Heteranthera rotundifolia Lowell Ahart 1999-9-17 8241 Yuba about 5 miles (air) northeast of Marysville; ; south of Woodruff Lane; just east of Mathews Road; east of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  CHSC73413  Heterocodon rariflorum B. Castro; L. Gehrung 1995-8-9 599 Yuba Fish Meadow. Ca 5 air mi NE of Strawberry Valley, and ca 1.5 mi E of Slate Creek. In meadow of unnamed stream flowing S into Canyon Ck, ca 500 ft W of USFS Rd 20N35 via unnamed dirt road. 1249 Comment
  JEPS94515  Heteromeles arbutifolia Lowell Ahart 1997-8-7 7823 Yuba about 3 air mi se of Challenge (on w side of dirt road near an unnamed stream, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  UCD113337  Heteromeles arbutifolia Barbara Yungert 1974-5-16 161 Yuba Along Dry Creek, Lewis project area, Sierra Foothill Field Station. Comment
  CHSC44872  Heterotheca grandiflora Lowell Ahart 1977-8-31 1557 Yuba Near Jack Slough, on the Sam Shintaffer Farm, about 2 air miles north-east of Marysville. 27 Comment
  UCD133108  Hieracium argutum J. D. Jokerst 1984-7-5 2083 Yuba south west facing slope north of the junction of North Fork Yuba River and Deadwood Creek. 701 Comment
  RSA0038272  Hierochloe occidentalis J. M. Grant 1930-05 s.n. Yuba Marysville. Comment
  CAS-BOT-BC55319  Hirschfeldia incana Lowell Ahart 1981-6-13 2855 Yuba Near McGinn Hill, Loma Rica. 300 Comment
  UCD33103  Hoita macrostachya Beecher Crampton 1966-6-14 7738 Yuba Yuba County, 5 miles east of Brown's Valley, Sierra Foothill Range Field Station. Comment
  CHSC115907  Hoita orbicularis L. P. Janeway 2015-6-29 11786 Yuba Northern High Sierra Nevada. Plumas National Forest; Weiss Hill Meadow, a large meadow 600 air-km east-southeast of junction of Weiss Hill Road and Forbestown Road; at the head of a minor northwestern tributary to New York Creek. 853 Comment
  SEINET7930195  Hoita orbicularis Ashley N. Egan, L. Egan 2005-6-23 279 Yuba In a meadow e of powerlines ca 50 yds w of Fountain Hill Rd, ca 5 airmiles N of Dobbins.; 0 840 Comment
  CAS-BOT-BC280822  Holcus lanatus Barbara T. Keller 1975-6-10 1494 Yuba Challenge Experimental Forest on La Porte Road near Challenge 762 Comment
  CHSC108309  Holcus lanatus Lowell Ahart 2011-6-7 17427 Yuba East of a willow shurb, just south of the huge gravel bar, along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC97229  Holcus lanatus Lowell Ahart 2007-6-22 14220 Yuba Near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS95537  Holcus lanatus Lowell Ahart 1994-6-27 7393 Yuba 4 mi NE of Strawberry Valley (along the N side of a small stream, E of Schwartz Meadow, on the E side of La Porte Road) 1219 Comment
  UCR189428  Holcus mollis George K. Helmkamp, E. A. Helmkamp 2007-8-29 12834 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 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
  JEPS59966  Holozonia filipes Lewis S. Rose 1969-6-26 69060 Yuba 5 mi s Smartville (Camp Beale Road) 182 Comment
  CAS-BOT-BC311749  Holozonia filipes J. T. Howell; Gordon H. True 1969-6-24 5091 Yuba Vineyard Creek ca. 4 miles south of Smartville on Beale AFB Rd. 152 Comment
  UCD133257  Holozonia filipes Robert E. Preston 1997-10-30 1059 Yuba Beale Air Force Base, on lower bank and in dry channel of Hutchinson Creek, around 300 feet north of Doolittle Drive. 35 Comment
  CHSC108212  Hordeum marinum subsp. gussoneanum Lowell Ahart 2011-6-7 17424 Yuba East of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS113402  Hordeum marinum subsp. gussoneanum Lowell Ahart 2007-5-14 13860 Yuba Bottom of a large vernal pool, about 30 yards east of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville 29 Comment
  JEPS118309  Hordeum marinum subsp. gussoneanum Lowell Ahart 2011-6-7 17424 Yuba East of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCD85831  Hordeum marinum subsp. gussoneanum Beecher Crampton 1957-6-5 4129 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  UCD85847  Hordeum marinum subsp. gussoneanum Beecher Crampton 1966-6-14 7755 Yuba 1 mile east of Brownsville. 731 Comment
  UCD86490  Hordeum murinum subsp. glaucum Barbara Yungert 1974-5-12 G- 12 Yuba Sierra Foothill Field Station. K 1-11 project area. 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
  JEPS104035  Horkelia californica subsp. dissita Lowell Ahart 2003-6-29 10318 Yuba Along a wash, on the e side of Ponderosa Way, ca 1 1/2 mi n of La Porte Rd, ca 1 mi (air) w of Brownsville. 701 Comment
  UCD113564  Horkelia tridentata W. R. Powell 1968-5-15 1493 Yuba On Fountain House Road, 2 miles northeast of Dobbins. 792 Comment
  UCD113558  Horkelia tridentata Kathleen Keliher 1975-5-6 93 Yuba 300 meters off La Porte Road, 2 miles from Forbestown Road. 914 Comment
  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
  JEPS123872  Horkelia tridentata var. tridentata Lowell Ahart 2015-4-30 20126 Yuba About 3/4 mile (air) southeast of Woodleaf. Comment
  NY15467  Hosackia incana J. M. Bigelow 1853-1 s.n. Yuba South Yuba Comment
  UCD106125  Hosackia oblongifolia R. O. Hanes 1991-5-21 14 Yuba Hornswoggle Ck area. Tahoe Forest. 682 Comment
  CHSC63249  Hosackia pinnata Lowell Ahart 1994-6-5 7305 Yuba On the bottom and sides of Costa Creek, on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  UCD35870  Hosackia pinnata Beecher Crampton 1965-6-17 7368 Yuba ca. 0.75 mile north of Stanfield Hill, Willow Glen Creek. Comment
  CDA19000  Hydrilla verticillata R. Kerr, E. Storm 2000-10-3 PDR 829572 Yuba Inhabiting in medium density of 0.01 acre pond in the vicinity of Marysville-Oregon House. 0 Comment
  CDA36288  Hydrilla verticillata Keith Miller 1976-11-24 s.n. Yuba Marysville, Ellis Lake, 9th & B Streets. 0 Comment
  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
  UC1419826  Hydrilla verticillata T. C. Fuller, G. D. Barbe 1976-11-1 2231 Yuba Marysville, se edge of (freshwater) Ellis Lake, Ninth and B Streets Ellis Lake; Marysville, Ellis Lake Comment
  CDA1445  Hydrilla verticillata G. D. Barbe, T. C. Fuller 1976-11-1 2231 Yuba 9th and B Streets, Marysville Southeast edge of freshwater Ellis Lake, to 4-1/2 feet deep. 0 Comment
  CDA43046  Hydrilla verticillata David Kratville 2014-9-9 s.n. Yuba Trantham property, Oregon House. 0 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
  SEINET14165656 Image available Hydrilla verticillata T. C. Fuller, G. D. Barbe 1976-11-1 s.n. Yuba SE edge of freshwater Ellis Lake, to 4-1/2' deep; 9th and B Streets, Marysville Comment
  UCD138137  Hydrilla verticillata T. C. Fuller 1976-11-1 2231 Yuba Ellis Lake, 9th and B Streets, Marysville. Comment
  RSA0037021  Hydrocotyle umbellata Lowell A. Ahart 2013-11-30 19309 Yuba On the north side of Dry Creek, below the high water line of Collins Lake, about 300 yards north of Marysville Road, about 2 1/2 miles west of Oregon house. 354 Comment
  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
  CHSC43307  Hypericum concinnum Lowell Ahart 1975-6-25 811 Yuba Near the dump south of Brownsville, along Ponderosa Way. 609 Comment
  UC1122103  Hypericum concinnum M. A. Elvin 1933-6-7 25 Yuba 4 mi. s.w. McCourtney Crossing; Smartsville Quad. Comment
  SEINET13710866  Hypericum formosum Lowell William Ahart, Lowell William Ahart 2003-1 10351 Yuba 5 Mi. N of Dobbins (39 Deg 26'11.7"N, 121 Deg 12' 07.3"W) 2746 Ft. 837 Comment
  CHSC84218  Hypericum perforatum Lowell Ahart 2003-7-6 10352 Yuba Near a meadow, east of the power line, about 50 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  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
  UCR567  Hypericum perforatum Frank C. Vasek 1955-1 272 Yuba Sierra Nevada Mountains, north fork of Yuba River 915 Comment
  CHSC108203  Hypochaeris glabra Lowell Ahart 2011-6-7 17378 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC97504  Hypochaeris glabra Lowell Ahart 2007-5-12 13770 Yuba Along the road to the power towers, about 20 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCD37851  Hypochaeris glabra Beecher Crampton 1962-4-24 6255 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD80077  Hypochaeris glabra CNPS SN Foothill Team 2005-3-17 SNFN 0019 d Yuba CDFG Spenceville Wildlife Area. From CA Hwy 20 east, right on Smartville Rd. to Spenceville Wildlife Area, CDFG. Plot is accessible from 1st Fish and Game gate on E side of Spenceville Rd., Horsetrail (N/S), ~ 2/3 mile along horse trail, then SW between trail and Smartville Rd. 195 Comment
  CAS-BOT-BC312913  Hypochaeris glabra Gordon H. True 1963-4-17 1167 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Hwy. 30 Comment
  CHSC96978  Hypochaeris radicata Lowell Ahart 2007-8-7 14411 Yuba Hampshire Creek Meadow, about 30 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS113576  Hypochaeris radicata Lowell Ahart 2007-8-7 14411 Yuba Hampshire Creek Meadow, about 30 yards east of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  CAS-BOT-BC133615  Iris hartwegii Peter H. Raven 1953-5-9 5471 Yuba 1 mile from Brownsville on road to Challenge Comment
  UCD138742  Iris hartwegii R. O. Hanes 1991-5-21 13 Yuba Hornswoggle Ck area. Tahoe Forest. 682 Comment
  CDA42450  Isoetes nuttallii L. Ahart 2004-4-27 10750 Yuba Along a very small drainage, about 100 yards northwest of where the drainage crosses the road, about 1/2 mile (air) southeast of Woodleaf. Comment
  CHSC46181  Isoetes nuttallii Lowell Ahart 1981-3-24 2707 Yuba About 6 miles east of Wheatland. 45 Comment
  CHSC63234  Isoetes nuttallii Lowell Ahart 1994-6-5 7292 Yuba On the north side of Costa Creek, on the north side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  CHSC87339  Isoetes nuttallii Lowell Ahart 2004-4-27 10750 Yuba Along a very small drainage, about 100 yards northwest of where the drainage crosses the road, about 1/2 mile (air) southeast of Woodleaf. 950 Comment
  JEPS95299  Isoetes nuttallii Lowell Ahart 1994-6-5 7292 Yuba 3 air miles E of Forbestown (N side of Costa Creek, N side of Forbestown Road) 853 Comment
  CAS-BOT-BC69895  Isoetes nuttallii Lowell Ahart 1980-6-19 2412 Yuba 4.5 mi. e. of Challenge. 900 Comment
  CAS-BOT-BC69896  Isoetes nuttallii Lowell Ahart 1981-3-24 2707 Yuba 6 mi. e. of Wheatland. 50 Comment
  CAS-BOT-BC69898  Isoetes nuttallii George J. Goodman; Lois Butler Payson 1936-7-6 2936 Yuba Luka-Chukai Mountains. Comment
  SBBG119955  Isoetes nuttallii L. Ahart 2004-4-27 10750 Yuba ca. 0.5 air mi SE of Woodleaf 950 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
  CHSC45187  Isolepis setacea Lowell Ahart 1980-6-19 2394 Yuba In small seep along the edge of a dirt road, about 3 air miles south-east of Challenge. 731 Comment
  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
  UCD37135  Jensia rammii Beecher Crampton 1957-6-5 4154 Yuba 1.3 miles east of Oregon House Store. Comment
  UCD38714  Jensia rammii Beecher Crampton 1957-6-5 4154 Yuba 1.3 miles east Oregon House Store. Comment
  SBBG8607  Jensia rammii H. and M. Dearing 1939-5-6 3287 Yuba 8 mi SW of Challenge 762 Comment
  CDA39164  Juncus acuminatus L. Ahart 2002-10-9 9955 Yuba Along a small stream, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. Comment
  CHSC47518  Juncus acuminatus Lowell Ahart 1981-7-13 2861 Yuba About 1/2 mile west of McGinn Hill, east of Loma Rica. 274 Comment
  CHSC76309  Juncus acuminatus Lowell Ahart 1999-9-17 8257 Yuba Sam Shintaffer Farm, on the west side of Kimball Lane, near the intersection of Kimball Lane and Hallwood Blvd., about 3/4 mile south of Sam Shintaffer's rice dryer, about 4 1/4 miles (air) northeast of Marysville. 22 Comment
  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
  JEPS124264  Juncus acuminatus Lowell Ahart 2015-11-19 20675 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  RSA726653  Juncus acuminatus L. Ahart 2007-6-22 14215 Yuba 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  CHSC47520  Juncus articulatus Lowell Ahart 1980-8-12 2571 Yuba Slate Creek, west of where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  JEPS104264  Juncus articulatus Lowell Ahart 2003-7-2 10345 Yuba In a small stream, on the w side of Fountain Hill Rd, ca 3 mi south of Oregon Hill Rd, ca 1/2 mi (air) n of Fountain House Hill, ca 3 mi (air) ne of Dobbins. 841 Comment
  CHSC107224  Juncus balticus subsp. ater Lowell Ahart 2011-5-30 17358 Yuba About 20 yards north of the cross fence, on the west side of the fence along Fruitland Road, about 41/2 miles (air) southwest of Loma Rica. 34 Comment
  HSC13984  Juncus balticus subsp. ater T. F. Newman 1964-4-12 64 Yuba 9 mi. N of Marysville on Hwy. (alternate) 40, 1 mi. E, Feather River Comment
  CHSC113184  Juncus bufonius var. bufonius Lowell Ahart 2013-11-30 19315 Yuba On the southeast side of Dry Creek, about 30 yards southeast of Willow Glen Creek, below the high water line of Collins Lake, about 30 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  CHSC97233  Juncus bufonius var. bufonius Lowell Ahart 2007-6-22 14216 Yuba Sides of a new ditch, near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113531  Juncus bufonius var. bufonius Lowell Ahart 2007-6-22 14216 Yuba Sides of a new ditch, near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS113861  Juncus bufonius var. bufonius Lowell Ahart 2007-5-12 13818 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  RSA726654  Juncus bufonius var. bufonius L. Ahart 2007-6-22 14216 Yuba 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  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
  CHSC78330  Juncus bufonius var. occidentalis Lowell Ahart 2000-6-23 8503 Yuba About 100 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  UCD147081  Juncus bufonius var. occidentalis Chuck Hughes 2013-5-2 366 Yuba Northwest margin of Camp Far West Reservoir. 97 Comment
  CHSC97505  Juncus capitatus Lowell Ahart 2007-5-12 13819 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC96873  Juncus covillei Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-13 14294 Yuba On the south side of Hampshire Creek, just east of the cement dam on Hampshire Creek, east of a large wet meadow, about 100 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  HSC98444  Juncus covillei L. Ahart, L. P. Janeway, L. Hanson 2007-7-13 14294 Yuba S side of Hampshire Creek, E of dam, 100 yds. E of Forest Rd., 1 mi. E of Clipper Mills 1021 Comment
  UC1254611  Juncus covillei Beecher Crampton 1966-6-14 7759 Yuba 1 mi e Brownsville (La Porte Road) Comment
  UCD33114  Juncus covillei Beecher Crampton 1966-6-14 7759 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  CHSC100329  Juncus cyperoides Lowell Ahart 2008-7-9 15049 Yuba In a small meadow, about 50 yards northwest of the dirt road (road now destroyed), north part of the Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills. 1015 Comment
  CHSC115469  Juncus cyperoides L. P. Janeway; Emily Meigs Doe 2015-4-29 11669 Yuba Northern High Sierra Nevada. Plumas National Forest; along Oroville-Wyandotte Canal at the eastern-most end of Road 19N32; about 0.8 km east of Weiss Hill Road and Forbestown Road. 838 Comment
  JEPS115042  Juncus cyperoides Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14498 Yuba In a small meadow, about 50 yards northwest of the dirt road, north part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills 1015 Comment
  SEINET6329237  Juncus cyperoides B. L. Wilson, L. Ahart, L. Janeway, P. F. Zika 2011-8-5 16772 Yuba Plumas National Forest, Sacramento Box Road, a closed road giving access to Hampshire Meadow, at the point where the stream cuts the road 1034 Comment
  UCR259341  Juncus cyperoides Glenn L. Clifton 2001-8-20 37290 Yuba Hampshire Creek 1027 Comment
  CHSC96874  Juncus dubius Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-13 14302 Yuba About 30 yards east of a poor dirt road, about 1 1/2 miles (air) northeast of Clipper Mills. 1045 Comment
  JEPS113840  Juncus dubius Lowell Ahart 2007-8-7 14423 Yuba In shallow water, open meadow, on the southeast part of Hampshire Creek Meadow, about 50 yards east of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  JEPS113873  Juncus dubius Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14302 Yuba About 30 yards east of a poor dirt road, about 1 1/2 miles (air) northeast of Clipper Mills 1045 Comment
  CHSC106633  Juncus effusus subsp. effusus Peter F. Zika 2010-6-22 24976 Yuba Northern Sierra Nevada Foothills (n SNF); Spring Valley Road NE of Browns Valley Ridge. 90 Comment
  CHSC96966  Juncus effusus subsp. pacificus Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-13 14301 Yuba About 30 yards east of a poor dirt road, about 1 1/2 miles (air) northeast of Clipper Mills. 1045 Comment
  JEPS104258  Juncus effusus subsp. pacificus Lowell Ahart 2003-7-2 10347 Yuba In a small stream, on the w side of Fountain Hill Rd, ca 3 mi south of Oregon Hill Rd, ca 1/2 mi (air) n of Fountain House Hill, ca 3 mi (air) ne of Dobbins. 841 Comment
  JEPS104445  Juncus effusus subsp. pacificus Lowell Ahart 2003-7-2 10347 Yuba In a small stream, on the w side of Fountain Hill Rd, ca 3 mi south of Oregon Hill Rd, ca 1/2 mi (air) n of Fountain House Hill, ca 3 mi (air) ne of Dobbins. 841 Comment
  JEPS113769  Juncus effusus subsp. pacificus Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14301 Yuba About 30 yards east of a poor dirt road, about 1 1/2 miles (air) northeast of Clipper Mills 1045 Comment
  JEPS63892  Juncus effusus subsp. pacificus W. L. Jepson 1934-7-29 16758 Yuba Marysville Comment
  RSA691012  Juncus effusus subsp. pacificus L. Ahart 2003-7-2 10347 Yuba On the west side of Fountain Hill Road, about 3 miles south of Oregon Hill Road, about 1/2 mile (air) north of Fountain House Hill, about 3 miles (air) northeast of Dobbins. 842 Comment
  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
  CHSC30018  Juncus hemiendytus var. hemiendytus L. Ahart 1980-5-25 2352 Yuba Along the edge of the road, along New York Flat Rd, near the Cemetary, near Brownsville. 800 Comment
  RSA727523  Juncus laccatus L. Ahart 2007-8-7 14414 Yuba About 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS104245  Juncus occidentalis Lowell Ahart 2003-7-6 10365 Yuba Near a meadow, e of the power line, ca 30 yd w of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  CHSC116211  Juncus orthophyllus Lowell Ahart 2015-6-16 20245 Yuba Near the water ditch, about 100 yards south of the poor dirt road, about 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. 829 Comment
  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
  JEPS124412  Juncus orthophyllus Lowell Ahart 2015-6-16 20245 Yuba About 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. 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
  JEPS98336  Juncus orthophyllus Lowell Ahart 2000-6-23 8504 A Yuba 3 mi NE of Strawberry Valley (bog in a small meadow, 200 yds E of the meadow along La Porte Road, 50 yds N of Scales Road) 1219 Comment
  CHSC106634  Juncus tenuis Peter F. Zika 2010-6-22 24977 Yuba Northern Sierra Nevada Foothills (n SNF); Spring Valley Road NE of Browns Valley Ridge. 90 Comment
  CHSC83032  Juncus tenuis Lowell Ahart 2002-10-9 9951 Yuba Area east of a spring, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  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
  UCD37136  Juncus tenuis Beecher Crampton 1957-6-5 4158 Yuba 1.3 miles east of Oregon House Store. 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
  UC423487  Keckiella breviflora David D. Keck 1930-7-25 984 Yuba Bullards Bar Reservoir; Sierra Nevada 1500 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
  NY790334  Keckiella lemmonii L. Ahart 1980-7-25 2484 Yuba Near Slate Creek. 1200 Comment
  UC2016501  Keckiella lemmonii Richard Olmstead 1986-6-14 845 Yuba Entrance to the Oregon Creek Picnic Ground. Jct of Oregon Cr. with middle fork Yuba River. Comment
  CAS-BOT-BC180849  Kochia scoparia Lemmel Jr. Osborne 1948-9-15 s.n. Yuba Near Marysville Comment
  UCD85744  Koeleria macrantha Beecher Crampton 1957-6-5 4141 Yuba 1 mile east of Stanfield Hill. Comment
  CAS-BOT-BC340441  Lactuca saligna J. T. Howell; Gordon H. True 1969-6-24 5094 Yuba Vineyard Creek ca. 4 miles south of Smartville on Beale AFB Rd. 152 Comment
  CHSC112952  Lactuca serriola L. P. Janeway 2014-11-6 11581 Yuba Northern High Sierra Nevada. Plumas National Forest; along Ore-gon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km north-west of Summit Hill; slope above Burnt Bridge Creek. 792 Comment
  UCR201939  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2008-10-6 14202 Yuba Sacramento Valley, junction of CA-65 and Ostrom No. 3 Road, southeast of Olivehurst 24 Comment
  CDA43103  Lactuca virosa L. P. Janeway 2014-6-25 11420 Yuba Northern High Sierra Nevada.; Plumas National Forest; Along Oregon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km northwest of Summit Hill; slope above Burnt Bridge Creek. Comment
  CHSC112370  Lactuca virosa L. P. Janeway 2014-6-25 11420 Yuba Northern High Sierra Nevada. Plumas National Forest; Along Oregon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km northwest of Summit Hill; slope above Burnt Bridge Creek. 792 Comment
  CHSC112372  Lactuca virosa L. P. Janeway 2014-6-25 11420 Yuba Northern High Sierra Nevada. Plumas National Forest; Along Oregon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km northwest of Summit Hill; slope above Burnt Bridge Creek. 792 Comment
  JEPS121747  Lactuca virosa L. P. Janeway 2014-6-26 11425 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. Comment
  JEPS121798  Lactuca virosa L. P. Janeway 2014-6-25 11420 Yuba Northern High Sierra Nevada. Plumas National Forest; Along Oregon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km northwest of summit Hill; slope above Burnt Bridge Creek. Comment
  JEPS121799  Lactuca virosa L. P. Janeway 2014-6-25 11420 Yuba Northern High Sierra Nevada. Plumas National Forest; Along Oregon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km northwest of summit Hill; slope above Burnt Bridge Creek. Comment
  CAS-BOT-BC341289  Lagophylla glandulosa Alice Eastwood 1921-5-22 10533 Yuba Los Vergils Comment
  CAS-BOT-BC341290  Lagophylla glandulosa Junea Kelley 1920-10-31 s.n. Yuba Los Vergels [Vergils] Comment
  UCD133618  Lagophylla glandulosa Barbara Yungert 1974-5-23 175 Yuba Along fence of F 1-14 and F 1-13 project areas, east of Forbes Hill, Sierra Foothill Field Station. Comment
  UCD80078  Lagophylla ramosissima CNPS SN Foothill Team 2005-7-5 SNNR 0469 Yuba CDFG Daugherty Hill Wildlife Area. 376 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
  CAS-BOT-BC352769  Lasthenia fremontii Annetta Carter 1940-4-21 1528 Yuba 4.3 miles SE of Marysville on road to Spenceville 30 Comment
  CHSC97671  Lasthenia fremontii Lowell Ahart 2007-5-12 13771 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113621  Lasthenia fremontii Lowell Ahart 2007-5-12 13771 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UC718224  Lasthenia glaberrima Carl B. Wolf 1937-5-18 8735 Yuba 2 mi s Marysville; Sacramento Valley 18 Comment
  UCR169010  Lasthenia gracilis David Charlton 2005-5-16 8009 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  JEPS121743  Lathyrus brownii L. P. Janeway 2014-4-22 11230 Yuba Northern High Sierra Nevada. Plumas National Forest; in shallow bowl at head of Little Oregon Creek; 0.5 km southwest of Oregon Hill Road; 3.5 air-km south-southeast of Challenge. Comment
  CHSC78145  Lathyrus hirsutus Lowell Ahart 2000-5-25 8394 Yuba On dry soil of open pasture field, near a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  CHSC116216  Lathyrus latifolius Lowell Ahart 2015-6-16 20247 Yuba Near the water ditch, about 100 yards south of the poor dirt road, about 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. 829 Comment
  RSA21291  Lathyrus sulphureus Carl B. Wolf 1937-5-13 8636 Yuba Sierra Nevada Foothills, 2.7 miles below Stanfield Hill on road to Browns Valley 183 Comment
  SBBG3370  Lathyrus sulphureus H. and M. Dearing 1939-5-8 3298 Yuba N of Bullards Bar Dam on Yuba River Comment
  UCD106457  Lathyrus sulphureus W. R. Powell 1967-6-13 1457 Yuba 1 1/2 miles northeast of Challenge. Comment
  CAS-BOT-BC321710  Layia fremontii Gordon H. True 1966-4-7 2679 Yuba About 5 miles E of Wheatland and 1 mile N of Bear River. 54 Comment
  CAS-BOT-BC321752  Layia fremontii Bruce G. Baldwin 1988-3-21 687 Yuba 3.3 miles W of junction with County Rd E21 (road to Collins Lake, Bullards Bar Reservoir) along Calif. State Hwy 20. Comment
  SEINET7042577  Layia fremontii A. G. Vestal 1963-4-30 s.n. Yuba 3.5 miles northwest of Wheatland. Wheatland quadrangle UTM Zone 10, 631043mN, 4323298mN. Comment
  SEINET7042633  Layia fremontii A. G. Vestal 1963-5-7 s.n. Yuba 5.2 miles southwest of Bangor. Loma Rica quadrangle UTM Zone 10, 632125mE, 4355120mN. Comment
  SJSU11676  Layia fremontii J. B. Willis Jr. 1969-4-19 Yuba 7 mi E of Marysville on Hammonton-Smartville Rd Comment
  UCD135654  Layia fremontii Bruce G. Baldwin 1988-3-21 687 Yuba 3.3 miles west of junction with County Road E21 (road to Collins Lake, Bullards Bar Reservoir) along California State Highway 20. Comment
  CHSC76312  Leersia oryzoides Lowell Ahart 1999-9-17 8239 Yuba South of Woodruff Lane, just east of Matthews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. In a rice field. 24 Comment
  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
  CHSC107128  Leontodon saxatilis subsp. longirostris L. P. Janeway 2011-6-2 10356 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  CHSC96482  Leontodon saxatilis subsp. longirostris Lowell Ahart 2007-4-17 13681 Yuba Along a poor dirt road, west of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  CHSC97691  Leontodon saxatilis subsp. longirostris Lowell Ahart 2007-11-1 14532 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  JEPS113101  Leontodon saxatilis subsp. longirostris Lowell Ahart 2007-4-17 13681 Yuba Along a poor dirt road, west of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  CDA42843  Leontodon taraxacoides subsp. longirostris L. Ahart 2011-6-7 17379 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. Comment
  UCR258220  Leontodon taraxacoides subsp. taraxacoides George K. Helmkamp, Amy Barnes 2013-3-28 20258 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  UC1124465  Lepechinia calycina M. A. Elvin 1933-7-1 36 Yuba 1 1/2 mi S of Virginia Ranch 457 Comment
  UCR197805  Lepidium campestre George K. Helmkamp, E. A. Helmkamp 2008-5-20 13459 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  CAS-BOT-BC88875  Lepidium chalepense Michael A. Vincent 1999-6-12 8637 Yuba Along canal parallel to Route 20 at jct. with Feather River Boulevard, 0.4 mile north of Sutter county line, Marysville. Comment
  CHSC95094  Lepidium latifolium L. P. Janeway; Erin Brandy 2006-7-10 8809 Yuba Northern High Sierra Nevada. West side of Slate Creek just north of the Scales Road crossing ('35' Road); 10 m west of the creek; between dirt road miner's campsite access and the creek, close to the campsite. 905 Comment
  CHSC90339  Lepidium nitidum var. nitidum Lowell Ahart 2005-3-11 11604 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
  JEPS107348  Lepidium nitidum var. nitidum Lowell Ahart 2005-3-11 11604 Yuba In middle of the poor dirt road, W of large rock outcrop, ca. 1/2 mi W of Marysville Rd, ca. 1/2 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/2 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 386 Comment
  RSA715479  Lepidium nitidum var. nitidum L. Ahart 2005-3-11 11604 Yuba West of a large rock outcrop, about 1/2 mile W of Marysville Road, about 1/2 mile N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile N of Loma Rica Road, about 5 miles (air) NE of Loma Rica. 386 Comment
  JEPS113806  Leptochloa fascicularis Lowell Ahart 2007-6-22 14218 Yuba Bottom of a new ditch, near a new road pad, about 350 yards west of the power tower, about 13 miles (air) northeast of Marysville 28 Comment
  UCD118637  Leptosiphon bicolor Barbara Yungert 1974-4-16 43 Yuba Sierra Foothill Field Station. Comment
  CDA40067  Leptosiphon filipes Yuba County School Children 1930-4-12 s.n. Yuba [No further data.] 0 Comment
  CHSC45456  Leptosiphon harknessii Lowell Ahart 1980-8-12 2568 Yuba On a gravel bar, a little below where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  UCD112035  Lessingia Christopher Mallek 2008-5-5 IC3- 17 Yuba Indiana Creek. 617 Comment
  UCR263565  Lessingia nemaclada Lowell Ahart 2002-10-10 9979 Yuba Sierra Nevada Mtns., E of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, c. 2 miles (air) N of Bridgeport, c. 18 miles N of Highway 20 166 Comment
  CAS-BOT-BC341779  Lessingia nemaclada Charles Williams 1981-9-8 s.n. Yuba Near Brownsville 609 Comment
  SEINET11448039 Image available Lessingia virgata B. Crampton 1974-10-11 9094 Yuba 3 miles southwest of Brown's Valley along Hwy 20 46 Comment
  UC1069831  Lessingia virgata M. A. Elvin 1933-6-7 24 Yuba 4 mi sw McCourtney Crossing; Smartsville Quadrangle Comment
  CAS-BOT-BC342057  Lessingia virgata Beecher Crampton 1974-10-11 9094 Yuba 3 miles S.W. of Brown's Valley along Hwy. 20 Comment
  UCD92453  Leymus X multiflorus Collector Unknown 1948-1 s.n. Yuba Near Marysville. Comment
  RSA129554  Leymus triticoides F. W. Embree 1934-4-30 47 Yuba 4 miles ENE. of Marysville B.M 23 Comment
  CAS-BOT-BC130619  Lilium humboldtii Mrs. J. E. Cramsie 1923-6-14 s.n. Yuba Smartsville Comment
  CAS-BOT-BC130622  Lilium humboldtii Albert Vollmer 1949-7-6 13 -E Yuba 1 mi. from Challenge on Challenge-Camptonville rd. Comment
  RSA130323  Lilium humboldtii subsp. humboldtii Albert M. Vollmer 1949-7-6 s.n. Yuba 1 mile from Challenge on Chllenge-Camptonville Road Comment
  UCD37879  Limnanthes alba Beecher Crampton 1962-4-24 6303 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  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
  CAS-BOT-BC110649  Limnanthes alba Peter H. Raven 1953-5-9 5477 Yuba 2 miles from Brownsville on road to Dobbins. Comment
  JEPS113391  Limnanthes alba subsp. alba Lowell Ahart 2007-5-14 13866 Yuba Damp bare red soil, bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  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
  CDA6279  Limnophila X ludoviciana L. Ahart 1977-9-25 Yuba Sam Shintaffer Farm, 2 miles northeast of Marysville. 0 Comment
  CHSC43512  Limosella acaulis Lowell Ahart 1977-9-25 1592 Yuba On Shintaffer Farms, about 2 miles north-east of Marysville. 32 Comment
  JEPS95981  Limosella acaulis Lowell Ahart 1999-9-17 8247 Yuba Sam Shintaffer Farm; south of Woodruff Lane; south of Mathews Road; 100 yards south of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  CHSC76292  Limosella aquatica Lowell Ahart 1999-9-17 8247 Yuba Sam Shintaffer Farm, south of Woodruff Lane, south of Mathews Road, 100 yards south of Sam Shintagger's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  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
  CHSC84984  Lindernia dubia var. anagallidea Lowell Ahart 2003-10-29 10684 Yuba On the south side of Lost Creek, below the high water line of Sly Creek Reservoir, about 200 yards southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS103441  Lindernia dubia var. anagallidea Lowell Ahart 2002-10-9 9971 Yuba On the S bank of Lost Creek, below the high water line of Sly Creek Reservoir, ca 200 yards SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS95147  Lindernia dubia var. anagallidea Lowell Ahart 1997-8-13 7860 Yuba about 2 1/4 air mi e of Borwn's Valley (on s side of Scott Forbes Road, 1/4 mi e of intersection of Scott Forbes Road and Peoria Road, just e of Gray Drive) 91 Comment
  UCD33814  Linum usitatissimum Beecher Crampton 1973-6-22 8956 Yuba Yuba County, ca. 3 miles east of Brown's Valley on Peoria road. Comment
  SEINET9330134  Lithocarpus densiflorus var. densiflorus Unknown 1981-6-22 3039 Yuba Oregon Hill Road, 0.1 mi N of Marysville Road, SW of Bullards Bar Dam. J.T. Howell #54076. Comment
  CAS-BOT-BC36548  Lithocarpus densiflorus var. echinoides John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54086 Yuba 3.6 miles northeast of Strawberry Valley on La Porte-Quincy road 1280 Comment
  CHSC11374  Lithocarpus densiflorus var. echinoides Lowell Ahart 1966-8-12 Yuba Near Challenge. 609 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-BC325968  Lithospermum californicum Lowell Ahart 1979-6-25 s.n. Yuba 2 miles E of Challenge. 700 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
  CHSC108210  Lolium multiflorum Lowell Ahart 2011-6-7 17425 Yuba East of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  SEINET4671403  Lolium multiflorum A. Tiehm 1975-1 639 Yuba U.C. Sierra Foothill Field Station 198 Comment
  UCD66222  Lolium multiflorum Beecher Crampton 1962-4-24 6262 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  CAS-BOT-BC269199  Lolium temulentum T. C. Fuller 1971-6-13 19888 Yuba East shore of Lake Francis, Lake Francis Rd., 1 mi. s.e. of Dobbins, Sierra Nevada 533 Comment
  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
  UCD66633  Lolium temulentum Beecher Crampton 1965-6-17 7371 Yuba Ca. 3/4 mile north of Stanfield Hill, Willow Glen Creek. 396 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
  RSA22243  Lomatium marginatum L. S. Rose 1939-6-6 39223 Yuba Brownsville 686 Comment
  JEPS113330  Lomatium marginatum var. marginatum L. P. Janeway 2006-5-24 8622 Yuba Northern Sierra Nevada Foothills. East side of Ponderosa Way 1.3 km north of La Porte Road & Brownsville. Comment
  JEPS94323  Lomatium marginatum var. marginatum Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7734 Yuba About 1 mile east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 121 Comment
  CDA14568  Lonicera hispidula var. vacillans G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3046 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  UCD23260  Lonicera interrupta W. R. Powell 1968-5-24 1551 Yuba 5 miles SSE of Challenge, 3/4 miles south of Greenville. 640 Comment
  UC567158  Lonicera involucrata var. involucrata M. A. Elvin 1933-7-14 54 Yuba Greenville Smartsville Quadrangle 762 Comment
  CHSC97226  Lotus corniculatus Lowell Ahart 2007-6-22 14212 Yuba About 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  UCD106713  Lotus corniculatus Collector unknown 1942-5-22 s.n. Yuba location unknown. Comment
  UCD106737  Lotus corniculatus Barbara Yungert 1974-5-1 98 Yuba North of Scott Lane, west of barns, opposite SC-5 project area, Sierra Foothill Field Station. Comment
  JEPS118361  Lotus humistratus Lowell Ahart 2011-6-7 17392 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCR194900  Lotus humistratus George K. Helmkamp, E. A. Helmkamp 2007-5-26 12138 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
  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
  SEINET3563125 Image available Lotus purshianus var. purshianus G. K. Helmcamp, E. A. Helmkamp 2008-10-6 14201 Yuba Sacramento Valley: junction of CA-65 and Ostrom No. 3 Road, SE of Olivehurst 24 Comment
  SEINET7042627  Lotus wrangelianus A. G. Vestal 1963-5-7 s.n. Yuba Ca. 3.5 miles north of Wheatland. Camp Far West quadrangle UTM Zone 10, 640908mE, 4323324mN. Comment
  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
  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
  UCD106422  Lupinus andersonii W. R. Powell 1968-5-15 1500 Yuba on Fountain House Road, 2 miles NE of Dobbins. 792 Comment
  RSA795536  Lupinus benthamii L. Ahart 2011-6-7 17395 Yuba Huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 air miles northeast of Marysville. 66 Comment
  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
  SEINET10903817  Lupinus benthamii Wagnon 1963-6-11 WAGNON s.n. Yuba At roadside at end of scott-forbes road, in vicinity of sierra foothills range Field station, ca 3 miles n of smartville Comment
  UCD107038  Lupinus benthamii K. A. Wagnon 1963-6-11 s.n. Yuba at roadside at end of Scott-Forbes Road, vicinity of Sierra Foothills Range Field Station, ca. 3 miles north of Smartville. 335 Comment
  UCD107040  Lupinus benthamii Barbara Yungert 1974-4-12 22 Yuba Along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  RSA21301  Lupinus benthamii var. benthamii Carl B. Wolf 1937-5-13 8646 Yuba 1.2 mi. below Stanfield Hill on road to Browns Valley. 274 Comment
  JEPS107955  Lupinus benthamii var. opimus Lowell Ahart 2005-3-11 11611 Yuba South steep slope of a large rock outcrop, west of a poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 395 Comment
  UC710384  Lupinus bicolor C. P. Smith 1946-5-2 46250 Yuba 3 mi se Hammonton Road Smartville; Smartville - 3 mi se Hammonton Road Comment
  UC710411  Lupinus bicolor C. P. Smith 1946-5-2 46248 Yuba 7.4 mi sw Hamonton Road Smartville; Smartville - 7.4 mi sw Hammonton Road Comment
  SEINET7042565 Image available Lupinus bicolor A. G. Vestal 1963-5-7 s.n. Yuba Along Ostrom Road east of Route 99. Wheatland quadrangle UTM Zone 10, 630286mE, 4325478mN. Comment
  UCD107336  Lupinus bicolor Barbara Yungert 1974-4-19 73 Yuba West of four wheel drive road, Jack-Ass Joe area, F-2 project area, Sierra Foothill Station. Comment
  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
  CAS-BOT-BC8498  Lupinus latifolius var. viridifolius C. P. Smith 1947-5-21 47316 Yuba Camptonville, about 6 miles S along Hwy 49, 2 miles N of bridge over MIddle Fork Yuba River Comment
  CHSC59318  Lupinus microcarpus var. densiflorus Thomas J. Van Wagner 1992-3-12 16 Yuba Scattered groups of plants along s berm State Highway 20, ca. 200 m e Marysville Rd. ca. 24 km ene Marysville. 36 Comment
  UC710380  Lupinus microcarpus var. densiflorus C. P. Smith 1946-4-25 46224 Yuba Hiway 24 at railroad crossing 1 mi n Marysville Comment
  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
  SD236292  Lupinus nanus G. 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
  UC710382  Lupinus nanus C. P. Smith 1946-5-2 46256 Yuba edge of town Brownsville; Brownsville - edge of town Comment
  UC710385  Lupinus nanus C. P. Smith 1946-5-2 46265 Yuba Dobbins Road 2.3 mi w Oregon House Comment
  UC710386  Lupinus nanus C. P. Smith 1946-5-2 46266 Yuba Dobbins Road 3 mi w Oregon House Comment
  UC710404  Lupinus nanus C. P. Smith 1946-5-1 46243 Yuba Hiway 99e, 1.2 mi n Wheatland; Wheatland - 1.2 mi n Hiway 99e Comment
  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
  SJSU14295  Lupinus nanus N. A. Hopkins 1989-4-28 1482 Yuba Ridge Rd to Allegheny c. 3 mi off Hwy 49 1219 Comment
  UC710406  Lupinus pachylobus C. P. Smith 1946-5-2 46259 Yuba Browns Valley Road 7.1 mi sw Brownsville; sw of Brownsville Comment
  SEINET10450737  Lupinus pachylobus Smith 1948-4-27 Smith 48180 Yuba Jct. Dobbins and browns valley brownsville roads. Stanfield hill, 3.4 mi ne. Pine forest. Scrub oak undergrowth. Red soil. Comment
  SEINET7042630 Image available Lupinus polycarpus 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
  UCD109589  Lupinus stiversii Barbara Yungert 1974-5-4 115 Yuba south of rock pile dredgings, north of Yuba River, Sierra Foothill Field Staion. Comment
  SEINET10903612  Lupinus vallicola subsp. apricus Charles Piper Smith 1948-4-27 Smith 48182 Yuba Junction Dobbins & Browns Valley - Brownsville roads. Stanfield Hill, 3.4 mi NE. Comment
  RSA21299  Lupinus vallicola subsp. vallicola Carl B. Wolf 1937-5-13 8644 Yuba Sierra Nevada Foothills, 1 2/10 mi. below Stanfield hill on road to Browns Valley. 274 Comment
  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
  CDA7739  Luzula comosa Wilson 2008-3-27 PDR# 1470580 Yuba Oregon Heights, 9448 Rices Texas Hill 0 Comment
  CHSC10768  Luzula macrantha Lowell Ahart 1968-4-21 Yuba Five miles S.E. of Challenge. 609 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
  SEINET6178448  Luzula macrantha Frank Polach 1967-4-22 11 Yuba Located 2.5 miles east of Brownsville.; 0 762 Comment
  JEPS112957  Luzula parviflora Dean W. Taylor 2001-6-19 17793 Yuba creek along Forest Road 20N35 tributary to Brushy Creek near Diamond Ravine (ca. 3 air miles SW of Union Hill) 1127 Comment
  CHSC112260  Luzula subsessilis Lowell Ahart 2013-4-23 18567 Yuba Mined area along Costa Creek, about 100 yards east of where the paved road crosses Costa Creek, about 2 1/2 miles (air) southeast of the Forbestown store. 851 Comment
  CHSC113659  Luzula subsessilis L. P. Janeway 2014-5-20 11257 Yuba Northern High Sierra Nevada. Plumas National Forest; 1.9 air-km southeast of Pike County Peak, 4.1 air-km southeast of Challenge; near Road 29N38. 928 Comment
  JEPS120941  Luzula subsessilis Lowell Ahart 2013-4-23 18567 Yuba Along Costa Creek, about 100 yards E of where the paved road crosses Costa Creek, about 2.5 air miles SE of the Forbestown Store. Comment
  CHSC97134  Lycopus americanus Lowell Ahart 2007-6-30 14237 Yuba Near and west of new road pad, about 250 yards west of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS103439  Lycopus americanus Lowell Ahart 2002-10-8 9942 Yuba On the edge of a pond, ca 100 yards N of Long Ravine Road, ca 300 yards SE of the intersection of Camp Far West Road and Long Ravine Road there is a poor gate on the N side of the road, N of Camp Far West Reservoir. 121 Comment
  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
  JEPS113404  Lythrum hyssopifolia Lowell Ahart 2007-5-12 13798 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS118089  Lythrum hyssopifolia Lowell Ahart 2011-6-7 17404 Yuba North of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  SEINET7042652  Lythrum hyssopifolia A. G. Vestal 1963-5-30 s.n. Yuba Weedy depression near Dry Creek and north oh Sicard Flat. Smartville quadrangle UTM Zone 10, 642203mE, 4345148mN. Comment
  UCD103077  Lythrum hyssopifolia Barbara Yungert 1974-5-30 186 Yuba Near gate in SC-5 project area, Sierra Foothill Field Station. Comment
  UCD111879  Maclura pomifera Barbara Yungert 1974-5-15 163 Yuba Sierra Foothill Field Station. Above Dry Creek near P-2 fence line, P-2 project area. Comment
  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
  CAS-BOT-BC344280  Madia elegans David D. Keck 1932-7-1 1609 Yuba 1 mile SE. of Log Cabin Service Station, west of Camptonville 600 Comment
  CAS-BOT-BC344281  Madia elegans David D. Keck 1932-7-1 1609 Yuba 1 mile SE. of Log Cabin Service Station, west of Camptonville 600 Comment
  CHSC45008  Madia exigua Lowell Ahart 1979-7-3 1920 Yuba About 1 mile south of Challenge. 640 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
  JEPS95343  Madia exigua Lowell Ahart 1994-6-5 7300 Yuba ca. 3 (air) mi e Forbestown (s side of creek, e side of Forbestown Rd.); Costa Creek 853 Comment
  SEINET7072998  Madia exigua A. G. Vestal 1963-5-30 s.n. Yuba Turn-off to Timbuctoo from Route 20 at Yuba River. UTM Zone 10, 643966mE, 4342277mN. Coordinate datum: NAD27). Comment
  UC1535367  Madia exigua Barbara Yungert 1974-5-9 138 Yuba along Road 1, p 1-12 project area, Sierra Foothill Field Station Sierra Foothills Comment
  UCD134259  Madia exigua Barbara Yungert 1974-5-9 138 Yuba along Road 1, P 1-12 project area, Sierra Foothill Field Station. Comment
  JEPS120532  Madia gracilis L. P. Janeway 2013-6-7 11137 Yuba Northern High Sierra Nevada. Along Oregon Hill Road just south of Little Oregon Creek. Comment
  SEINET3450907  Madia gracilis Unknown 2003-7-6 10355 Yuba Dobbins, Dobbins, about 5 air miles north, about 30 yards west of Fountain Hill Road Comment
  CAS-BOT-BC343558  Madia gracilis Lowell Ahart 1982-7-4 3660 Yuba About 1/2 mile east of Brownsville, along La Porte Road 700 Comment
  CAS-BOT-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
  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
  JEPS118045  Madia subspicata Lowell Ahart 2011-6-7 17381 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  SEINET7072992  Madia yosemitana A. G. Vestal 1963-5-30 s.n. Yuba About 3.3 miles south of Brownsville on Willow Glen Road near Chritterden Ridge. UTM Zone 10, 647294mE, 4365554mN. Coordinate datum: NAD27). Comment
  CHSC110339  Malus pumila L. P. Janeway; Tim Hanson 2013-4-25 11094 Yuba Northern High Sierra Nevada. Plumas National Forest; 50 m east of Oregon Hill Road between Burnt Bridge Creek and Little Oregon Creek. 640 Comment
  CHSC97488  Malva nicaeensis Lowell Ahart 2007-5-14 13849 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC76109  Malva parviflora Lowell Ahart 1999-9-5 8199 Yuba On the disturbed area on the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 Comment
  CHSC90465  Marah fabacea var. agrestis Lowell Ahart 2005-3-11 11602 Yuba In the center of a large rock outcrop, just east of the poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 386 Comment
  UCSB16772  Marah watsonii Dearing, Hugh; Dearing, Margaret 1939-5-8 Yuba Near Comptonville Comment
  UCD125021  Marrubium vulgare Barbara Yungert 1974-5-6 120 Yuba behind second house from west end, south of station, Sierra Foothill Field Station. Comment
  UCD134622  Matricaria discoidea Barbara Yungert 1974-4-17 18 Yuba North of Yuba River, Sierra Foothill Field Station. Comment
  CHSC43408  Medicago lupulina Lowell Ahart 1979-6-3 1921 Yuba About 1 mile south of Challenge. 670 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
  JEPS113507  Medicago polymorpha Lowell Ahart 2007-5-14 13871 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UCD107902  Medicago polymorpha Barbara Yungert 1974-5-1 103 Yuba Near SC-12 fence, southeast corner of SC-14 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC271130  Melica aristata Lowell Ahart 1979-6-25 s.n. Yuba 1 mi. S of Challenge 700 Comment
  CHSC100767  Melica californica L. P. Janeway 2008-5-11 9363 Yuba Northern High Sierra Nevada. In the northwestern head of Slapjack Creek; along road 19N34, 1.3 road km woutheast of Challenge-La Porte Road; about 1.2 km south-southeast of Woodleaf. 940 Comment
  CHSC107175  Melica californica L. P. Janeway; 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. Small grassy meadow. Plants next to shrubs around edges of the meadow. 750 Comment
  SEINET4671582  Melica californica A. Tiehm 1975-1 646 Yuba U.C. Sierra Foothill Field station 274 Comment
  UCD80571  Melica californica CNPS SN Foothill Team 2005-3-17 SNFN 0060 Yuba CDFG Spenceville Wildlife Area, one mile south of Smartville and Pitman Road junction, northeast of the Pittman Pond. 180 Comment
  CHSC40950  Melica harfordii J. D. Jokerst 1984-7-5 2080 Yuba Canyon of Deadwood Creek between creek and Weed Point. 883 Comment
  UC1153840  Melica harfordii Beecher Crampton 1954-5-10 1850 Yuba 6 mi ne Camptonville (State Hwy 49, canyon of the north fork of the Yuba River) Comment
  CDA32495  Melica harfordii G. D. Barbe, J. T. Howell & T. C. Fuller 1981-6-22 3041 Yuba 0.1 mile north of Marysville Road on Oregon Hill Road, west of Bullards Bar Reservoir. Comment
  CHSC68463  Melica torreyana Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7730 Yuba Along the south side of Dry Creek, north of the poor dirt road, about 1 mile east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 121 Comment
  JEPS94322  Melica torreyana Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7730 Yuba about 17 mi ne of Marysville (along the s side of Dry Creek, n of the poor dirt road, about 1 mi e of Scott Forbes Road (Long Bar Road)); Dry Creek 121 Comment
  RSA726437  Melilotus albus L. Ahart 2007-11-1 14541 Yuba About 1 mile northwest of Old Camptonville Road, about 1.5 miles (air) west of Camptonville. 627 Comment
  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
  CDA19166  Mentha pulegium Roush 2000-6-27 PDR 1199230 Yuba Sacramento Valley; on N side of Iowa City Road, Marysville. 0 Comment
  JEPS113451  Mentha pulegium Lowell Ahart 2007-6-22 14209 Yuba Along a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 29 Comment
  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
  UCR169025  Micropus californicus David Charlton 2005-5-16 8020 B Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  JEPS118294  Micropus californicus var. californicus Lowell Ahart 2011-6-7 17382 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CAS-BOT-BC348441  Micropus californicus var. californicus Alice Eastwood 1921-5-22 10534 Yuba Los Vergils Comment
  UCD37877  Microseris acuminata Beecher Crampton 1962-4-24 6301 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  SEINET7042615  Microseris acuminata A. G. Vestal 1963-5-7 s.n. Yuba Ca 3.5 miles north of Wheatland. Wheatland quadrangle UTM Zone 10, 636544mE, 4323933mN. Comment
  SEINET7073617  Mimulus angustatus A. G. Vestal 1955-5-21 s.n. Yuba New York Flat. About 2.6 miles south of Forbestown on New York Flat Road. UTM Zone 10, 649035mE, 4272168mN. Coordinate datum: NAD27. Comment
  UCR194906  Mimulus aurantiacus George K. Helmkamp, E. A. Helmkamp 2007-5-26 12129 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville 802 Comment
  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
  CHSC115287  Mimulus aurantiacus var. grandiflorus Lowell Ahart 2015-4-30 20130 Yuba Serpentine, on the east side of the quarry, about 1 1/4 mile (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. 709 Comment
  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
  RSA0114654  Mimulus aurantiacus var. grandiflorus Lowell A. Ahart 2015-4-30 20130 Yuba On the east side of the quarry, about 1.25 mile (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. 710 Comment
  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
  SEINET12334053  Mimulus bifidus D. B. Wilson 1972-1 1 Yuba ca 300 yds NW of Englebrigh Reservoir on Yuba River E of Nevada City 244 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
  JEPS86881  Mimulus guttatus David M. Thompson 1988-3-21 848 Yuba between 0.8 and 0.9 mi w of Hwy 49 bridge Yuba River (along Moonshine Road, which starts on the n side of the bridge) 440 Comment
  UCD122717  Mimulus guttatus Barbara Yungert 1974-4-14 34 Yuba along road 5, outside Meathook area, Sierra Foothill Field Station. Comment
  UC1239059  Mimulus kelloggii Freed W. Hoffman 1949-5-14 3165 Yuba near bridge Yuba River (Highway 49) Comment
  UCD84997  Mimulus kelloggii Dena Grossenbacher; Ryan Briscoe Runquist 2009-4-1 960 Yuba 0.9 miles west of Highway 49 along the north side of Moonshine Road which starts on the north side of the Highway 49 Yuba River bridge. 451 Comment
  UCD122738  Mimulus kelloggii R. O. Hanes 1991-5-21 15 Yuba Road 18N77 or 121. Tahoe Forest. 579 Comment
  UCD37885  Mimulus microphyllus Beecher Crampton 1962-4-24 6311 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  POM161754  Mimulus moschatus R. C. Bacigalupi 1927-7-2 1587 Yuba Highway to Downieville about 8 mi NE of Camptonville. Comment
  UCD122682  Mimulus nasutus Kathleen Keliher 1975-4-16 56 Yuba Below Englebright Dam, Sierra Foothill Field Station. 152 Comment
  UC1982295  Mimulus tilingii Virginia Moran 2008-9-17 Yuba Collected from Celestial Pond located approximately tem miles (16Km) north of Nevada City in Yuba County. Water from the pond drains in Oregon Creek which drains into the Middle Yuba River. Comment
  CAS-BOT-BC174591  Minuartia californica Gordon H. True 1963-4-17 1175 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Hwy. 30 Comment
  CDA24062  Minuartia douglasii D. L. Wilson 1976-5-14 Yuba 4899 Fruitland Road, Loma Rica. 0 Comment
  CHSC113180  Mollugo verticillata Lowell Ahart 2013-11-30 19298 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  CHSC116317  Mollugo verticillata Lowell Ahart 2015-11-19 20688 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
  JEPS102556  Mollugo verticillata Lowell Ahart 2001-11-2 9402 Yuba Camp Far West Reservoir, about 1/4 mile mortheast of the dam, about 9 miles (air) SE of Wheatland. 83 Comment
  CAS-BOT-BC435062  Mollugo verticillata J. T. Howell; Gordon H. True 1969-6-24 5093 Yuba Vineyard Creek ca. 4 miles south of Smartville on Beale AFB Rd. 152 Comment
  CAS-BOT-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
  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
  RSA0037137  Monardella sheltonii L. P. Janeway 2014-6-26 11426 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  RSA0118764  Monardella sheltonii Lawrence P. Janeway 2014-7-2 11438 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.6 air-km east of Challenge, along Road 19N03 1.3 road mi north of its crossing of Indian Creek, on slopes just east of the creek. 834 Comment
  LA54221  Monardella sheltonii Carl Epling; 1938-6-16 sn Yuba near Brownsville Comment
  JEPS107349  Montia fontana subsp. amporitana Lowell Ahart 2005-3-11 11603 Yuba In the middle of the poor dirt road, west of a large rock outcrop, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 386 Comment
  CAS-BOT-BC260519  Muhlenbergia filiformis Lowell Ahart 1980-8-12 2567 Yuba Along Slate Creek 1250 Comment
  UCD32864  Muhlenbergia rigens Beecher Crampton 1964-10-22 7228 Yuba Yuba County, 3 miles east of Browns Valley, dry creek bed. Comment
  JEPS95852  Myriophyllum aquaticum Lowell Ahart 1999-9-17 8258 Yuba Sam Shintaffer Farm; on the west side of Kimball Lane; near the intersection of Kimball Lane and Hallwood Blvd.; about 3/4 mile south of Sam Shintaffer's rice dryer; about 4 1/4 miles (air) northeast of Marysville 22 Comment
  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
  CDA19013  Najas guadalupensis E. Finley 2000-9-1 PDR 1066500 A Yuba Fellowship-Renaissance Winery, 23 Reservoir, Oregon House. 0 Comment
  UCD81504  Nassella pulchra Christopher Michael Bronny 2009-4-1 16 Yuba Oat Hills' area of Sierra Nevada foothills. 140 Comment
  UCD87479  Nassella pulchra Beecher Crampton 1962-4-24 6274 Yuba 5 miles east of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCR189051  Navarretia divaricata subsp. divaricata George K. Helmkamp, E. A. Helmkamp 2007-8-29 12832 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 Comment
  UC702891  Navarretia eriocephala Lewis S. Rose 1939-6-5 39203 Yuba Smartsville 182 Comment
  CHSC107430  Navarretia filicaulis L. P. Janeway 2011-8-10 10641 Yuba Northern High Sierra Nevada. Plumas National Forest; serpentine slope on southeast side of Road 19N04 1.3 km north of Challenge-La Porte road; 2.2 air km northeast of Challenge. 1023 Comment
  CHSC44335  Navarretia filicaulis Lowell Ahart 1975-6-25 809 Yuba Near the Brownsville dump, about 1 mile west of Brownsville. 396 Comment
  UC570359  Navarretia filicaulis A. E. Wieslander 1933-6-21 255 Yuba 1.5 mi w Rapps Ranch; Smartsville Quad. 457 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
  JEPS113395  Navarretia heterandra Lowell Ahart 2007-5-12 13804 Yuba About 30 feet north of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UCD37132  Navarretia heterandra Beecher Crampton 1957-6-5 4118 Yuba 10 miles east of Marysville, along State Highway 20. Comment
  JEPS13880  Navarretia intertexta Rimo Bacigalupi with L. R. Heckard, R. D. Sanderson, and G. Bacigalupi 1952-6-20 3757 Yuba 1.5 mi due s;along road from Brownsville to Oregon House, just n of Washington Mill Brownsville 609 Comment
  JEPS13881  Navarretia intertexta Rimo Bacigalupi with L. R. Heckard, R. D. Sanderson, and G. Bacigalupi 1952-6-20 3756 Yuba 1.5 mi due s;along road from Brownsville to Oregon House, just n of Washington Mill Brownsville 609 Comment
  UC856821  Navarretia intertexta Lewis S. Rose 1940-5-28 40377 Yuba Browns Valley 60 Comment
  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
  UCR169019  Navarretia intertexta David Charlton 2005-5-16 8011 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  SJSU10209  Navarretia intertexta C. W. Sharsmith 1983-6-7 8790 Yuba Rose Ranch c. 4 mi NE of Strawberry Valley on the La Porte-Wuincy Rd; boundary Yuba & Sierra county 1432 Comment
  UCD37134  Navarretia intertexta Beecher Crampton 1957-6-5 4132 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  UCD48453  Navarretia intertexta Beecher Crampton 1957-6-5 4132 Yuba 2.6 miles NE of Brown's Valley P.O. 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
  RSA727118  Navarretia leucocephala L. Ahart 2007-5-12 13806 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  SEINET7072979  Navarretia leucocephala A. G. Vestal 1963-5-29 s.n. Yuba At 99 East and Beale Road [Presently 99 & Camp Beale Road]. UTM Zone 10, 622422mE, 4331929mN. Coordinate datum: NAD27). Comment
  UC1283734  Navarretia leucocephala Beecher Crampton 1965-5-11 7325 Yuba 2.5 mi sw Browns Valley Comment
  UCD37130  Navarretia leucocephala Beecher Crampton 1957-6-5 4115 Yuba 10 miles east of Marysville, along State Highway 20. Comment
  SEINET7042611  Navarretia leucocephala A. G. Vestal 1963-5-29 s.n. Yuba Olivehurst-Smartville Road [presently Hammonton- Smartville Road]. 0.4 mile west of road south to Beale Air Force Base [Smartville Road]. Smartville quadrangle UTM Zone 10, 646242mE, 4339869mN. Comment
  SEINET7042632  Navarretia leucocephala A. G. Vestal 1963-5-7 s.n. Yuba Ca. 3.5 miles north of Wheatland. Camp Far West quadrangle UTM Zone 10, 640908mE, 4323324mN. Comment
  CHSC97639  Navarretia leucocephala subsp. leucocephala Lowell Ahart 2007-5-12 13806 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113396  Navarretia leucocephala subsp. leucocephala Lowell Ahart 2007-5-12 13806 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UCD147080  Navarretia leucocephala subsp. leucocephala Chuck Hughes 2013-5-2 365 Yuba Northwest margin of Camp Far West Reservoir. 97 Comment
  CHSC108214  Navarretia pubescens Lowell Ahart 2011-6-7 17406 Yuba Openings in woodlands, about 100 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC97449  Navarretia pubescens Lowell Ahart 2007-5-12 13807 Yuba Dry bare disturbed dark soil, about 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113399  Navarretia pubescens Lowell Ahart 2007-5-12 13807 Yuba Dry bare disturbed dark soil, about 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  SEINET3163760  Navarretia pubescens L. S. Rose 1939-6-5 39202 Yuba Smartsville 183 Comment
  UC572391  Navarretia pubescens H. S. Yates 1933-5-24 3641 Yuba near Toland Ranch; Smartsville Quad. 121 Comment
  SEINET208622  Navarretia pubescens Lewis S. Rose 1967-6-13 67126 Yuba Cam Far West Reservoir; 7 miles NE of Wheatland. 122 Comment
  SEINET5906105 Image available Navarretia pubescens L. S. Rose 1967-1 67126 Yuba Camp Far West Reservoir. 7 mi NE of Wheatland. Comment
  UCD38716  Navarretia pubescens Beecher Crampton 1957-6-5 4131 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  RSA726412  Navarretia tagetina L. Ahart 2007-5-12 13808 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  RSA750179  Navarretia tagetina J. R. Shevock, Bob Holland 1985-5-6 11126 Yuba Beale Air Force Base E of Marysville. Pools adjacent to runway. 40 Comment
  OBI11296  Navarretia tagetina Lewis S. Rose 1967-6-13 67124 Yuba 7 mi NE of Wheatland. 61 Comment
  RSA189450  Navarretia tagetina L. S. Rose 1967-6-13 67124 Yuba 7 mi. NE of Wheatland 61 Comment
  CHSC59545  Nemophila heterophylla H. E. MacLennan 1992-4-5 14 Yuba 19 air miles se of Oroville. 518 Comment
  CHSC96484  Nemophila heterophylla Lowell Ahart 2007-4-17 13687 Yuba East side of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  UC410446  Nemophila heterophylla Alice Eastwood 1930-4-12 17938 Yuba Texas Hill Road Comment
  UC606921  Nemophila heterophylla L. Constance, J. L. Morrison 1938-4-30 2175 Yuba 1 mi nw Smartsville (above Timbuctoo); Sierra Nevada foothills, abv Timbuctoo, nw of Smartsville 304 Comment
  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
  RSA0043191  Nemophila heterophylla Carl B. Wolf 1937-5-13 8638 Yuba Sierra Nevada Foothills, 2.7 mi below Stanfield Hill on road to Browns Valley. 183 Comment
  RSA21293  Nemophila heterophylla Carl B. Wolf 1937-5-13 8638 Yuba Sierra Nevada Foothills, 2.7 mi below Stanfield Hill on road to Browns Valley. 183 Comment
  UCD120072  Nemophila heterophylla Barbara Yungert 1974-4-16 53 Yuba Koch Livestock Area, Sierra Foothill Field Station. 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
  UC794385  Nemophila maculata Lincoln Constance 1949-4-29 3279 Yuba 2 mi w Dobbins (Oregon House); w of Dobbins 457 Comment
  UCD119911  Nemophila maculata Kathleen Keliher 1975-5-6 95 Yuba 100 feet from duck pond, between two houses, intersection of Frenchtown and New York House Roads. 304 Comment
  CHSC32094  Nemophila menziesii L. Ahart 1973-4-15 208 Yuba On dry edge of rd cut bank, Darby Rd, Bangor. 304 Comment
  CHSC59548  Nemophila menziesii var. menziesii H. E. MacLennan 1992-4-5 13 Yuba 20 air miles se of Oroville. 472 Comment
  CHSC111038  Notholithocarpus densiflorus L. P. Janeway; Tim Hanson 2013-10-24 11211 Yuba Northern High Sierra Nevada. Plumas national Forest; Challenge Experimental Forest; broad ridgeline between Challenge and Golden Gate Ravine, 1700 m north-northwest of Challenge. 817 Comment
  JEPS120544  Notholithocarpus densiflorus L. P. Janeway, Tim Hanson 2013-10-24 11211 Yuba Northern High Sierra Nevada. Plumas National Forest; Challenge Experimental Forest; broad ridgeline between Challenge and Golden Gate Ravine, 1700 m north-northwest of Challenge. Comment
  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
  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
  UCD139089  Odontostomum hartwegii Barbara Yungert 1974-5-9 139 Yuba east bank of Road 1, Porter Hill, P 1-21 project area, Sierra Foothill Field Station. Comment
  CHSC32098  Oenothera elata subsp. hirsutissima L. Ahart 1977-8-22 1556 Yuba Near irrigation ditch, ca. 4 mi e of Marysville. 40 Comment
  JEPS95891  Oenothera elata subsp. hirsutissima Lowell Ahart 1999-9-5 8194 Yuba on the disturbed area on the south side of Woodruff Lane; just west of Kimball Lane; about 5 miles (air) northeast of Marysville 24 Comment
  CHSC84349  Oryza sativa Lowell Ahart 2003-9-22 10614 Yuba In a rice field, Shintaffer Farms, in the rice field east of the canal and the large Shintaffer Farms rice dryer, about 300 yards south of Woodruff lake, about 3 miles (air) northeast of Marysville. 40 Comment
  JEPS88898  Packera eurycephala var. eurycephala Lowell Ahart 1994-6-5 7295 Yuba n side of Forbestown Rd about 3 air mi e Forbestown (n side of Costa Creek); Costa Creek 853 Comment
  CHSC44564  Panicum acuminatum Lowell Ahart 1979-6-25 1949 Yuba North of the road, about 2 miles east of Challenge. 640 Comment
  CHSC63312  Panicum acuminatum var. acuminatum Lowell Ahart 1994-6-5 7308 Yuba Meadow on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  CHSC78364  Panicum acuminatum var. acuminatum Lowell Ahart 2000-6-19 8492 Yuba In a meadow, about 100 yards north of New York Flat Road, about 1 1/4 miles (air) northeast of Brownsville, about 2 1/4 miles (air) west of Challenge. 731 Comment
  UCD88528  Panicum acuminatum var. fasciculatum Beecher Crampton 1964-10-22 7222 Yuba 3 miles east of Brown's Valley, Dry Creek. Comment
  UCD88531  Panicum acuminatum var. fasciculatum Beecher Crampton 1966-6-14 7745 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  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
  UCD89503  Panicum capillare Beecher Crampton 1964-10-22 7226 Yuba 3 miles east of Brown's Valley. Comment
  UCD89509  Panicum capillare Floyd Forbes 1922-7-6 s.n. Yuba Marysville. 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
  CHSC93950  Parentucellia viscosa L. P. Janeway 2006-5-24 8635 Yuba Northern Sierra Nevada Foothills. Dougherty Hill Wildlife Area, Donovan Hill Unit; east of Los Verjeles Road 1.25 km north of Loma Rica Road. In nearby pastures. 241 Comment
  UCD168080  Paspalum dilatatum James Neilson 1961-10-16 461 Yuba Near Hallwood. 5 mi. east of Marysville, Hi. 20.. (Exact location unknown. Coordinates estimated by label maker.) Comment
  POM301690  Paspalum dilatatum J. C. Roos 1939-7-3 1519 Yuba East of Marysville Comment
  UCD88732  Paspalum dilatatum Beecher Crampton 1964-10-22 7227 Yuba 3 miles east of Brown's Valley Dry Creek. Comment
  UCD88742  Paspalum dilatatum L. Osborn 1951-11-27 s.n. Yuba Sid Smith's Ranch. Comment
  CHSC10747  Paspalum distichum Lowell Ahart 1966-9-4 Yuba Sam Shintaffer Ranch. 39 Comment
  UC1108681  Paspalum distichum H. R. Bennett 1954-8-6 Yuba 4 mi ne Marysville 22 Comment
  UC1555418  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
  CAS-BOT-BC202813  Paxistima myrsinites L. P. Janeway; Jean Witzman; Robin Fallsheer 1992-4-15 4152 Yuba Southwest side of Slapjack Creek, 1 mi southeast of Woodleaf 899 Comment
  CHSC109347  Paxistima myrsinites Karen Callahan 2011-8-12 24 Yuba Near Pendola Road, Rd 3119, about 1 mile from Hwy. 49 intersection, NW of Camptonville. Close to bridge over confluence of Brandy Creek and Willow Creek. 792 Comment
  CHSC59309  Paxistima myrsinites L. P. Janeway; Jean Witzman, Robin Fallsheer 1992-4-15 4152 Yuba Southwest side of Slapjack Creek, 1 mi southeast of Woodleaf. On slope near the creek. 899 Comment
  CHSC43517  Pedicularis densiflora Lowell Ahart 1972-4-28 92 Yuba About 3 miles north-east of Strawberry Valley, along the road to Slate Creek. 914 Comment
  JEPS18882  Pedicularis densiflora Rimo Bacigalupi with G. T. Robbins and Fran Chisaki 1956-4-19 5622 Yuba 3.1 mi e of Dobbins (between Dobbns and Bullard Bar Dam, watershed of North Fork of Yuba River, 5.5 mi sw of Bullard Bar Dam); Yuba River 783 Comment
  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
  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
  JEPS127128  Pedicularis racemosa Lowell Ahart 2016-9-9 21343 Yuba After crossing Slate Creek on Old County Road to Scales, take first road to the right and go about 1/2 mile near Stowman Ravine, about 3 miles (air) southwest of Poverty Hill mine, about 8 miles (air) southwest of La Porte. Comment
  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
  RSA716503  Pellaea mucronata L. Ahart 2005-3-11 11613 Yuba About 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Managment Area, about 1/2/ mile north of Loma Rica Road, about 5 air miles northeast of Loma Rica 395 Comment
  SEINET6626521  Pellaea mucronata A. Tiehm 1975-1 651 Yuba U.C. Sierra Foothill Field Station Comment
  SEINET11713853  Pellaea mucronata E. O. Pelton 1879-1 s.n. Yuba no further locality 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
  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
  UCD23252  Penstemon heterophyllus var. purdyi W. R. Powell 1968-5-15 1496 Yuba 2 miles NE of Dobbins on Fountain House Road. 792 Comment
  CHSC115299  Penstemon laetus Lowell Ahart 2015-4-30 20136 Yuba On dry soil, road cut, on the east side of La Porte Road, about 2 1/4 miles (air) southwest of Brownsville, about 2 miles (air) northeast of Rackerby. Foothill Woodland. 504 Comment
  RSA789816  Penstemon laetus Rebecca Wenk 2005-10-8 396 Yuba Top of Yuba Pass, along hwy 49. Comment
  SEINET3160435  Penstemon laetus subsp. laetus L. S. Rose 1939-6-7 39236 Yuba S Fork Feather River, 3 mi S of Pulsa 610 Comment
  SEINET7072994  Penstemon laetus var. laetus A. G. Vestal 1963-5-30 s.n. Yuba Meadow about 3.9 miles south of Brownsville and 0.3 mile north of Willow Glen Ranch on Willow Glen Road. UTM Zone 10, 647202mE, 4364746mN. Coordinate datum: NAD27). Comment
  UC423488  Penstemon laetus var. leptosepalus David D. Keck 1930-7-25 983 Yuba Bullards Bar Reservoir Sierra Nevada, Bullards Bar Reservoir 457 Comment
  UC423489  Penstemon laetus var. leptosepalus David D. Keck 1930-7-25 982 Yuba Challenge Sierra Nevada, Challenge 731 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
  RSA6487  Penstemon laetus var. leptosepalus D. D. Keck 1930-7-25 982 Yuba Challenge. 732 Comment
  RSA668196  Penstemon laetus var. leptosepalus Karl Vincent, Charlotte A. Labbe 1987-8-10 4504 Yuba Sierra Nevada, New York Flat. Along N side of LaPorte Rd (CA E21) at jct. New York House (Rd.) ca 1.8 mi W of Challenge. 732 Comment
  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
  CHSC62139  Penstemon newberryi var. newberryi B. Castro 1987-5-8 71 Yuba Ca 0.2 mi SE of bridge over Slate Creek. On edge of Slate Creek Canyon. 1097 Comment
  JEPS123933  Pentagramma triangularis subsp. triangularis Lowell Ahart 2015-4-30 20131 Yuba About 1 1/4 mile (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. Comment
  UCD81493  Pentagramma triangularis subsp. triangularis Christopher Michael Bronny 2009-4-1 5 Yuba Oat Hills' area of Sierra Nevada foothills. 217 Comment
  CHSC108169  Perideridia bacigalupii L. P. Janeway 2011-8-15 10646 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 1.9 air km south-southwest of Oregon Peak, 0.3 km north of Marysville Road. Southwest edge of meadow area, where seasonal drainage occurs and in sheetlfow parts of the meadow. 750 Comment
  CAS-BOT-BC222716  Perideridia gairdneri subsp. gairdneri Lowell Ahart 1981-6-13 2849 Yuba Near McGinn Hill, Loma Rica 300 Comment
  CHSC105608  Perideridia kelloggii L. P. Janeway 2010-11-8 10139 Yuba Northern High Sierra Nevada. Plumas National Forest; under the power lines about 150 m northwest of Oregon Hill Road 2.2 road km north of Marysville Road; about half was between Oregon Peak and Summit Hill. Springtime seep. 832 Comment
  UCR146708  Perideridia kelloggii Eric Knapp 2000-1 232 B Yuba Sierra Foothill Research and Extension Center 373 Comment
  CHSC105609  Perideridia lemmonii L. P. Janeway 2010-11-8 10140 Yuba Northern High Sierra Nevada. Plumas National Forest; under the power lines about 150 m northwest of Oregon Hill Road 2.2 road km north of Marysville Road; about half was between Oregon Peak and Summit Hill. Springtime seep. 832 Comment
  CHSC108180  Perideridia lemmonii L. P. Janeway 2011-8-15 10648 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 1.9 air km south-southwest of Oregon Peak, 0.3 km north of Marysville Road. Southwest edge of meadow area, where seasonal drainage occurs and in sheetlfow parts of the meadow. 750 Comment
  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
  JEPS95165  Perideridia lemmonii Lowell Ahart 1997-8-7 7824 Yuba about 3 air mi se of Challenge (on e side of the dirt road, near an unnamed stream, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  UC1389942  Perideridia lemmonii T. I. Chuang and R. Bacigalupi 1963-8-1 5909 Yuba Comment
  CAS-BOT-BC418857  Persicaria hydropiperoides Lowell Ahart 1977-8-31 s.n. Yuba 2 miles north-east of Marysville 30 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
  HSC17530  Persicaria maculosa C. B. Wolf 1927-11-5 1438 Yuba Road to Brown's Valley, 8 mi. from Marysville Comment
  CAS-BOT-BC419309  Persicaria punctata A. Starker Leopold 1956-7-18 s.n. Yuba 3 miles n.w. of Rio Oso Post Office Comment
  CHSC116117  Persicaria punctata Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20640 Yuba On the bottom of the outflow area at the bottom of Lake Francis Dam, Lake Francis, about 1-1/2 miles south of Dobbins. 479 Comment
  JEPS124320  Persicaria punctata Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20640 Yuba Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CHSC108226  Petrorhagia dubia Lowell Ahart 2011-6-7 17388 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS118316  Petrorhagia dubia Lowell Ahart 2011-6-7 17388 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  JEPS23244  Petrorhagia dubia Herbert L. Mason 1927-5-11 3735 Yuba flat w North San Juan; w of North San Juan Comment
  RSA0012079  Petrorhagia dubia George K. Helmkamp, E. A. Helmkamp 2011-5-6 17207 Yuba junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg ) of Wheatland. 56 Comment
  UC1076251  Petrorhagia dubia Herbert L. Mason 1927-5-11 3735 Yuba flat w North San Juan; flat w of North San Juan Comment
  UCD37844  Petrorhagia dubia Beecher Crampton 1962-4-24 6241 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD37858  Petrorhagia dubia Beecher Crampton 1962-4-24 6264 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD37867  Petrorhagia dubia Beecher Crampton 1962-4-24 6283 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  POM244285  Petrorhagia dubia C. B. Wolf 1937-5-13 8632 Yuba Sierra Nevada Foothills, 2 miles above Browns Valley on road to Stanfield Hill. 122 Comment
  RSA261406  Petrorhagia dubia H. J. Vaux Jr. 1961-5-20 47 Yuba State Hwy 20, 12.3 miles W of Marysville. Comment
  SEINET5337378  Petrorhagia dubia W. Short 1959-4-11 s.n. Yuba 5 miles west of Smartville, Calif. on California highway 20. 366 Comment
  SEINET5337379  Petrorhagia dubia M. Dailey 1959-4-24 s.n. Yuba Rough and Ready, California, just off highway 20. 732 Comment
  UCD98374  Petrorhagia dubia Mary Anne Brayton 1964-5-2 22 Yuba Harry L. Englebright Dam, State Highway 20, 20 miles northwest of Marysville. 182 Comment
  CHSC68480  Phacelia cicutaria var. cicutaria Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7726 Yuba On the bank of the Browns Valley Water Ditch, north of the poor dirt road, south of Dry Creek, about 1 1/4 miles east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 198 Comment
  CHSC90348  Phacelia cicutaria var. cicutaria Lowell Ahart 2005-3-11 11618 Yuba Rock outcrop, west of a large rock outcrop, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 393 Comment
  JEPS94319  Phacelia cicutaria var. cicutaria Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7726 Yuba about 17 mi ne of Marysville (on bank of Browns Valley Water Ditch, n of the poor dirt road, s of Dry Creek, about 1 1/4 mi e of Scott Forbes Road (Long Bar Road)); Browns Valley Water Ditch 198 Comment
  UCD37873  Phacelia egena Beecher Crampton 1962-4-24 6293 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  SJSU11213  Phacelia egena J. B. Willis Jr. 1969-4-19 54 Yuba Hammonton Rd 3 mi W of Smartville 182 Comment
  UCR196980  Phacelia hastata var. compacta George K. Helmkamp, E. A. Helmkamp 2008-5-20 13465 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  RSA10981  Phacelia humilis var. humilis Carl B. Wolf 1927-11-5 1440 Yuba Eight miles from Marysville on road to Browns Valley. Comment
  CHSC8261  Phalaris aquatica J. G. Moore 1969-5-4 35 Yuba Hwy. 20, 300 yds. w of 7 mi. House on s side of road growing in ditch next to rice fields. [Label incorrectly says Nevada County]. 91 Comment
  HSC10569  Phalaris aquatica T. F. Newman 1965-6-6 6512 Yuba Lone Tree Rd., 15 mi. NE of Marysville. Comment
  UCD88039  Phalaris aquatica Beecher Crampton 1971-6-18 8730 Yuba 5 miles E of Marysville, along State Hwy. 20. Comment
  UCD89167  Phalaris minor Beecher Crampton 1957-6-5 4124 Yuba 10 miles E of Marysville. Along State Hwy. 20. Comment
  UC1311876  Philadelphus lewisii B. F. Smith 1965-6-8 52 Yuba Quadrangle 50A3 Comment
  UCD118252  Phlox speciosa Kathleen Keliher 1975-5-30 118 Yuba Near New York Flat Road, just west of Forbestown. 822 Comment
  CHSC44340  Phlox speciosa subsp. occidentalis Lowell Ahart 1976-4-15 1071 Yuba Along Ponderosa Way and near the Brownsville dump, about 1 mile west of Brownsville. 457 Comment
  CHSC45360  Phlox speciosa subsp. occidentalis Vernon Oswald 1985-5-20 1772 Yuba Forbestown Rd. between Forbestown and Woodleaf 2.9 mi e of the Butte Co.-Yuba Co. line. On a road cut. 975 Comment
  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
  UC1186135  Phlox speciosa subsp. occidentalis Herbert L. Mason 1927-5-10 3729 Yuba near Dobbins Comment
  POM202706  Phlox speciosa subsp. occidentalis J. E. Cramsie 1932-5-1 s.n. Yuba Smartville. Comment
  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
  CHSC69148  Physocarpus capitatus Lowell Ahart 1997-8-9 7839 Yuba Along a unnamed creek, about two miles (air) southeast of Woodleaf. 701 Comment
  CHSC113671  Phytolacca americana L. P. Janeway 2014-5-20 11258 Yuba Northern High Sierra Nevada. Plumas National Forest; 1.9 air-km southeast of Pike County Peak, 4.1 air-km southeast of Challenge; near Road 19N38. 928 Comment
  CHSC69143  Phytolacca americana Lowell Ahart 1997-8-7 7820 Yuba On the east side of a small stream, a branch of Little Oregon Creek, on the south side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  JEPS94626  Phytolacca americana Lowell Ahart 1997-8-7 7820 Yuba Peterson Ridge Rd. about 3 air mi se Challenge (e side of small stream (branch of creek) on s side of dirt road); Little Oregon Creek 762 Comment
  CHSC97670  Pilularia americana Lowell Ahart 2007-5-12 13765 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCD134969  Pinus ponderosa Barbara Yungert 1974-6-5 194 Yuba North of Yuba River, H 8-11 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC72816  Pinus sabiniana Saichi Kawahara 1968-4-13 296 Yuba Park's Bar, Highway 20 at north bank Yuba River. 91 Comment
  HSC1544  Pinus sabiniana R. A. Magie 1964-3-27 18 Yuba 15 mi. W of Grass Valley on Hwy. 20 Comment
  UCD139003  Piperia elegans Kenneth Stewart 1964-6-26 s.n. Yuba 2 miles northeast of Challenge. Comment
  CHSC84185  Piperia transversa Lowell Ahart 2003-7-2 10341 A 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
  JEPS125849  Piperia transversa Dean W. Taylor 2001-7-31 17850 Yuba Rock Creek canyon on the Yuba County side, ca 2 air miles SW of Union Hill. Comment
  UCR169028  Plagiobothrys David Charlton 2005-5-16 8012 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  UCD37880  Plagiobothrys Beecher Crampton 1962-4-24 6304 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  RSA220014  Plagiobothrys bracteatus J. T. Howell, Gordon True 1967-6-13 3570 Yuba Camp Far West reservoir on Bear River E. of Wheatland. In damp soil at edge of reservoir. 61 Comment
  SJSU5649  Plagiobothrys bracteatus L. S. Rose 1967-6-13 67128 Yuba Camp Far West Reservoir 7 mi NE of Wheatland 121 Comment
  UCD120784  Plagiobothrys bracteatus Barbara Yungert 1974-5-7 127 Yuba Forbes Hill, F1-14 project area, Sierra Foothill Field Station. Comment
  CDA31977  Plagiobothrys fulvus L. Ahart 2007-5-12 13777 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. Comment
  CHSC68471  Plagiobothrys fulvus Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7728 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
  CHSC97662  Plagiobothrys fulvus Lowell Ahart 2007-5-12 13777 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  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
  RSA726544  Plagiobothrys fulvus L. Ahart 2007-5-12 13777 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  UCR232228  Plagiobothrys fulvus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17212 Yuba Eastern edge of Sacramento Valley, Camp Far West Road, 1.3 miles southeast of its junction with Spenceville Road, 5.25 mi. NE (52 deg. ) of Wheatland 62 Comment
  UCR257538  Plagiobothrys fulvus var. campestris George K. Helmkamp 2014-4-17 22768 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
  SBBG121298  Plagiobothrys glyptocarpus L. Ahart 2007-4-17 13682 Yuba ca. 1/8 mi W of Marysville Rd and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 5.5 air mi NE of Loma Rica 292 Comment
  CHSC96493  Plagiobothrys glyptocarpus var. glyptocarpus Lowell Ahart 2007-4-17 13682 Yuba Along a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  JEPS113166  Plagiobothrys glyptocarpus var. glyptocarpus Lowell Ahart 2007-4-17 13682 Yuba Along a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  JEPS113479  Plagiobothrys glyptocarpus var. glyptocarpus Lowell Ahart 2007-5-12 13780 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  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
  RSA0115337  Plagiobothrys greenei George K. Helmkamp, E. A. Helmkamp 2011-4-10 17167 Yuba Sacramento Valley: along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland. 44 Comment
  SEINET7075552  Plagiobothrys greenei A. G. Vestal 1955-4-4 s.n. Yuba About 9 miles northeast of Marysville on Route 20. 39? deg. 13' 38" North Latitude, -121? deg. 24' 51" West Longitude. UTM Zone 10, 636890mE, 4342994mN. (NAD 27)]. [Coordinate Datum: WGS84/NAD83]. Comment
  UCD120936  Plagiobothrys nothofulvus Barbara Yungert 1974-4-14 31 Yuba Meathook project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC523899  Plagiobothrys stipitatus var. micranthus George K. Helmkamp; Amy Barnes 2013-3-28 20250 Yuba Eastern Sacramento Valley: northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  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
  CHSC108200  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2011-6-7 17387 Yuba Bottom of a depression at the base of cliffs, to the north is a huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC82394  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2002-6-3 9688 Yuba On the bottom of the pond spillway, second small man made pond, about 1/4 mile south of Long Ravine Road, about 1/8 mile east of the intersection of Camp Far West Road and Long Ravine Road there is a poor Texas gate on the south side of the road, north of Camp Far West Reservoir. 102 Comment
  CHSC97630  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2007-5-12 13779 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  HSC100755  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2011-6-7 17387 Yuba 150 yd. W of S end of Parks Bar Bridge (Hwy. 20), 15 (air) mi. NE of Marysville. 66 Comment
  JEPS113754  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
  JEPS123937  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2015-4-30 20132 Yuba About 1 1/4 mile (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. Comment
  RSA726413  Plagiobothrys stipitatus var. micranthus L. Ahart 2007-5-12 13779 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  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
  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
  UCR258235  Plagiobothrys stipitatus var. micranthus George K. Helmkamp, Amy Barnes 2013-3-28 20250 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  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
  JEPS113412  Plantago coronopus Lowell Ahart 2007-5-12 13801 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  CHSC97494  Plantago elongata Lowell Ahart 2007-5-12 13802 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113629  Plantago elongata Lowell Ahart 2007-5-12 13802 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  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
  RSA716507  Plantago erecta L. Ahart 2005-3-11 11606 Yuba 1/2 miles W of Marysville road, 1/2 mile N of Parking area 3, Dauherty Hill Wildlife area, Donovan Hill Management Area, 1/2 mile N of Loma Rica Road, 5 miles air NE of Loma Rica. 395 Comment
  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
  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
  JEPS113485  Plantago lanceolata Lowell Ahart 2007-6-30 14231 Yuba Near a new ditch, near and east of a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  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
  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
  UCD82075  Platystemon californicus Robin McMaster 1973-4-7 221 Yuba Browns Valley, Peoria Cemetery. Comment
  UCD137572  Plectritis ciliosa Kathleen Keliher 1975-4-11 57 Yuba along dirt road, ca. 1 mile from picnic area, F-2 project area, Sierra Foothill Field Station. 152 Comment
  UCD137588  Plectritis ciliosa Barbara Yungert 1974-4-16 41 Yuba Campbell Valley, Sierra Foothill Field Station. Comment
  UC912454  Plectritis ciliosa subsp. ciliosa Herbert L. Mason 1927-5-11 3731 Yuba near Dobbins 457 Comment
  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
  UCD90855  Poa compressa Beecher Crampton 1971-6-18 8732 Yuba Sierra Foothill Range Field Station. Ca. 6 miles east of Browns Valley. Comment
  CHSC97762  Poa palustris Lowell Ahart 2007-11-1 14538 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  CAS-BOT-BC255962  Poa pratensis Lowell Ahart 1979-6-25 s.n. Yuba 1 mi. S of Challenge 700 Comment
  CHSC112127  Poa pratensis subsp. angustifolia L. P. Janeway; James Nixon, Eduardo Gonzales 2014-6-2 11428 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow opening just northeast of Little Oregon Creek and 0.2 km east of Oregon Hill Road; 7.3 air-km southeast of Challenge. 625 Comment
  UCD92142  Poa secunda subsp. secunda Barbara Yungert 1974-5-6 G- 4 Yuba Sierra Foothill Field Station. South of wire gate, Kock Livestock project area. Comment
  JEPS126008  Poa trivialis D. W. Taylor 2001-6-19 17795 Yuba Ca 3 air miles SW of Union Hill; creek along Forest Road 20N35 tributary to Brushy Creek near Daimond Ravine. Comment
  SEINET7072719  Pogogyne zizyphoroides A. G. Vestal 1963-5-7 s.n. Yuba About 3.5 miles north of Wheatland on Jasper Lane. UTM Zone 10, 636590E, 4323573mN. Coordinate datum: NAD 27. Comment
  CHSC32102  Polygala cornuta L. Ahart 1979-6-25 1950 Yuba Below the rd, ca. 2 mi e of Challenge. 700 Comment
  CHSC43322  Polygala cornuta Lowell Ahart 1977-7-31 1506 Yuba On the banks of a stream, about 1 mile south of Challenge. 640 Comment
  UCD112040  Polygala cornuta Christopher Mallek 2008-5-5 IC3- 1 Yuba Indiana Creek. 617 Comment
  SEINET9323173  Polygala cornuta Unknown 1981-6-22 3044 Yuba Oregon Hill Road Comment
  CAS-BOT-BC170373  Polygala cornuta var. cornuta Clarence R. Quick 1966-6-28 66 -32 Yuba Challenge Ranger Station, Challenge Comment
  CHSC69145  Polygala cornuta var. cornuta Lowell Ahart 1997-8-7 7811 Yuba On the north side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 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
  CAS-BOT-BC110539  Polygonum Lowell Ahart 1977-8-31 s.n. Yuba Found 2 miles northeast of Marysville. On the Sam Shintaffer Farm. 35 Comment
  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
  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
  RSA726959  Polygonum convolvulus L. Ahart 2007-5-14 13842 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  CAS-BOT-BC414406  Polygonum douglasii Lowell Ahart 1980-8-12 2540 Yuba Along Slate Creek 1250 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
  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
  CDA19038  Polygonum lapathifolium Schwall, Johnson 2000-10-16 PDR 007596 Yuba Sacramento Valley; At Greenhead Land Co., North Butte Rd., Live Oak. 0 Comment
  CAS-BOT-BC418539  Polygonum minimum Lowell Ahart 1980-8-12 2542 Yuba Along Slate Creek 1250 Comment
  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
  JEPS50639  Polygonum persicaria W. L. Jepson 1934-7-29 16755 Yuba Marysville Comment
  JEPS113400  Polygonum polygaloides subsp. confertiflorum Lowell Ahart 2007-5-14 13853 Yuba Bottom of swales, about 100 yards east of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville 29 Comment
  UCR191120  Polygonum punctatum George K. Helmkamp, E. A. Helmkamp 2007-8-29 12826 Yuba Northern Sierra Nevada Mountains Foothills, Mountain House Road 0.6 mile west of the Sierra Co. line; Sleighville area beside Willow Creek 1021 Comment
  SEINET13710837  Polygonum punctatum Lowell William Ahart, Lowell William Ahart 1999-1 8243 Yuba 5 Air Mi. NE of Marysville Comment
  CHSC108217  Polypogon australis Lowell Ahart 2011-6-7 17428 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
  JEPS118308  Polypogon australis Lowell Ahart 2011-6-7 17428 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
  UCD90518  Polypogon australis Beecher Crampton 1965-6-17 7374 Yuba Ca. 3/4 mile north of Stanfield Hill, Willow Glen Creek. 396 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
  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
  JEPS94354  Polypogon interruptus Lowell Ahart 1997-8-7 7827 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
  UCD51641  Polypogon interruptus Beecher Crampton 1962-4-24 6310 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  CAS-BOT-BC233229  Polypogon maritimus Peter Rubtzoff 1972-4-4 6724 Yuba U.C. Sierra Foothill Range Field Station, N of Smartville, Gravelly bar of Yuba River Comment
  UCD91182  Polypogon maritimus Beecher Crampton 1957-6-5 4114 Yuba Along State Hwy. 20, 10 miles east of Marysville. Comment
  JEPS113403  Polypogon monspeliensis Lowell Ahart 2007-5-14 13882 Yuba Dry red bare soil, on the bottom of a swale, about 250 yards west of the power tower, power tower is about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  RSA726565  Polypogon monspeliensis L. Ahart 2007-5-14 13882 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  SEINET4889801  Polypogon monspeliensis A. Tiehm 1975-1 640 Yuba U.C. Sierra Foothill Field Station 198 Comment
  UCD91224  Polypogon monspeliensis A. A. Beetle 1941-6-26 2734 Yuba Near Marysville. Comment
  UCD91415  Polypogon monspeliensis Barbara Yungert 1974-5-9 G- 9 Yuba Near ald spring runoff, F 1-43 project area, Sierra Foothill Field Station. Comment
  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
  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
  CAS-BOT-BC102413  Populus fremontii Saichi Kawahara 1968-4-13 285 Yuba Highway 20 at north bank Yuba River, Park's Bar 91 Comment
  CAS-BOT-BC267184  Potamogeton foliosus A. Starker Leopold 1956-7-18 s.n. Yuba 3 miles NW of Rio Oso Post Office Comment
  CAS-BOT-BC267185  Potamogeton foliosus Gordon H. True, Jr.; John Thomas Howell 1970-5-29 5421 Yuba Ca 1 mile NW of Spenceville (site) on Cox Creek 152 Comment
  CAS-BOT-BC267186  Potamogeton foliosus Gordon H. True, Jr.; John Thomas Howell 1969-6-24 5102 Yuba Ca 1 mile NW of Spenceville (site) on Cox Creek 152 Comment
  CHSC83216  Potamogeton foliosus var. foliosus Lowell Ahart 2002-10-8 9941 Yuba In a pond, about 100 yards north of Long Ravine Road, about 300 yards southeast of the intersection of Camp Far West Road and Long Ravine Road there is a poor gate on the north side of the road, north of Camp Far West Reservoir. 121 Comment
  CDA37686  Potamogeton nodosus Robin Breckenridge 2004-6-15 s.n. Yuba Oregon House, Yuba County Irrigation Canal. 0 Comment
  JEPS103560  Potamogeton pusillus var. pusillus Lowell Ahart 2002-6-3 9687 Yuba Man made pond, ca 1/4 mile S of Long Ravine Road, ca 1/8 mile E of the intersection of Camp Far West Road and Long Ravine Road there is a poor Texas gate on the S side of the road, N of Camp Far West Reservoir. 106 Comment
  UCR196991  Potentilla glandulosa subsp. reflexa George K. Helmkamp, E. A. Helmkamp 2008-5-20 13461 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  CHSC113663  Poterium sanguisorba L. P. Janeway 2014-5-12 11249 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  CHSC96415  Poterium sanguisorba L. P. Janeway 2006-5-24 8634 Yuba Northern Sierra Nevada Foothills. South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. 483 Comment
  UCD38715  Prunella vulgaris Beecher Crampton 1957-6-5 4138 Yuba 1 mile east of Stanfield Hill. 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
  CHSC113182  Pseudognaphalium luteoalbum Lowell Ahart 2013-11-30 19310 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
  JEPS115027  Pseudognaphalium luteoalbum Lowell Ahart 2007-11-1 14534 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  JEPS118090  Pseudognaphalium luteoalbum Lowell Ahart 2011-6-7 17376 Yuba West of a willow shrub, Just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CHSC113681  Pseudognaphalium thermale L. P. Janeway 2014-6-24 11418 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 2.1 air km south-southwest of Oregon Peak, 0.2 km north of Marysville Road. 762 Comment
  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
  SEINET7072978  Psilocarphus brevissimus A. G. Vestal 1963-5-29 s.n. Yuba At 99 East and Beale Road [Presently 99 & Camp Beale Road]. UTM Zone 10, 622422mE, 4331929mN. Coordinate datum: NAD27). Comment
  CAS-BOT-BC361737  Psilocarphus brevissimus var. brevissimus John Thomas Howell; Gordon H. True 1971-5-26 47608 Yuba About 8 miles east of Marysville 30 Comment
  CDA34542  Psilocarphus oregonus L. Ahart 2007-5-12 13774 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. Comment
  CHSC97475  Psilocarphus oregonus Lowell Ahart 2007-5-12 13774 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113414  Psilocarphus oregonus Lowell Ahart 2007-5-12 13774 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC73409  Psilocarphus tenellus var. tenellus B. Castro; L. Gehrung 1995-8-9 601 Yuba Fish Meadow. Ca 5 air mi NE of Strawberry Valley, and ca 1.5 mi E of Slate Ck. In meadow on unnamed stream flowing S into Canyon Ck, ca 500 ft W of USFS Rd 20N35 via unnamed dirt rd. 1249 Comment
  CHSC74073  Psilocarphus tenellus var. tenellus B. Castro; R. Fallscheer, M. A. Griggs, N. Kang, J. Dittes 1995-4-15 558 Yuba Ca 2.5 air mi S of the Yuba River, on Beale AFB grounds, ca 1 mi NW of main campground. 28 Comment
  CHSC97648  Psilocarphus tenellus var. tenellus Lowell Ahart 2007-5-12 13773 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  CAS-BOT-BC72530  Pteridium aquilinum Lowell Ahart 1979-6-3 s.n. Yuba 1 mile S of Challenge 700 Comment
  CAS-BOT-BC72537  Pteridium aquilinum John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54077 Yuba About 2 miles northeast of Dobbins on Oregon Hill Road in Transition Zone Forest 701 Comment
  CHSC97461  Pteridium aquilinum var. pubescens Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-9-18 14500 Yuba Under trees, Hampshire Creek Meadow, about 80 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. 1015 Comment
  JEPS115069  Pteridium aquilinum var. pubescens Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14500 Yuba Hampshire Creek Meadow, about 80 yards E of the dirt rosd, about 1 mi (air) E of Clipper Mills 1015 Comment
  UCR196996  Pteridium aquilinum var. pubescens George K. Helmkamp, E. A. Helmkamp 2008-5-20 13488 Yuba Foothills, northern Sierra Nevada Mountains, Camptonville, at the junction of Henness Pass Road and CA-49 823 Comment
  CHSC63138  Pterospora andromedea Lowell Ahart 1994-6-27 7396 Yuba In forest on the north side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  SEINET7085243  Pterospora andromedea Steven R. Hill 2010-7-17 38554 Yuba Along La Porte Road, 950 feet northeast of Travis Saddle and the road to Sly Creek Reservoir Dam. 13.6 kilometers north-northwest of Camptonville. Just southwest of Strawberry Valley Sierra Nevada. Coordinate Datum: WGS84/NAD83. 1103 Comment
  CAS-BOT-BC328152  Pyrrocoma lucida L. S. Smith 1935-5-24 2778 Yuba Near Camptonville near highway 762 Comment
  UC1135527  Quercus berberidifolia M. A. Elvin 1933-7-7 34 Yuba 1.5 mi s Virginia Ranch; Smartsville Quad. 457 Comment
  UCD40460  Quercus chrysolepis Rodney Gale Myatt 1971-11-1 1524 -5 Yuba Oregon Creek-Middle Fork Yuba River. Yuba River where smaller Oregon Creek is confluent. 640 Comment
  UCD82653  Quercus chrysolepis Rodney Gale Myatt 1971-11-1 1590 -15 Yuba Oregon Creek-Middle Fork Yuba River. Yuba River where smaller Oregon Creek is confluent. 640 Comment
  UCD82667  Quercus chrysolepis Rodney Gale Myatt 1971-11-1 1524 -1 Yuba Oregon Creek-Middle Fork Yuba River. Yuba River where smaller Oregon Creek is confluent. 640 Comment
  UCD82668  Quercus chrysolepis Rodney Gale Myatt 1973-7-1 1592 -14 Yuba Bullard's Bar Dam. 550 Comment
  UCD82669  Quercus chrysolepis Rodney Gale Myatt 1973-7-1 1592 -9 Yuba Bullard's Bar Dam. 550 Comment
  CAS-BOT-BC86015  Quercus douglasii Carl B. Wolf 1930-10-12 1737 Yuba along Yuba River near Hammonton 152 Comment
  CAS-BOT-BC86016  Quercus douglasii Carl B. Wolf 1930-10-12 1739 Yuba along the Yuba River near bridge on Browns Valley to Smartville Road 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
  CHSC96586  Quercus garryana var. breweri L. P. Janeway 2006-5-24 8618 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way 1.6 road km north of La Porte Road and Brownsville. 680 Comment
  CAS-BOT-BC94995  Quercus lobata R. C. Wenk 2008-7-18 976 Yuba 5 mi. from Highway 20 going east from Marysville, along Peoria and Scott Forbes Roads 204 Comment
  CDA20045  Quercus lobata P. Akers 2002-9-19 StB- 079 Yuba Sacramento Valley; E of Marysville on Smartville & Beale AFB Rd, 0.1 mi S of Waldo Rd. 94 Comment
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Jun 12 2008
  CDA20046  Quercus lobata P. Akers 2002-9-19 StB- 080 Yuba Sacramento Valley; E of Marysville on Smartville & Beale AFB Rd, 0.1 mi S of Waldo Rd. 0 Comment
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Jun 12 2008
  CAS-BOT-BC94996  Quercus wislizeni R. C. Wenk 2008-7-18 978 Yuba 5 mi. from Highway 20 going east from Marysville, along Peoria and Scott Forbes Roads 204 Comment
  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
  JEPS107434  Quercus wislizeni var. wislizeni Lowell Ahart 2005-3-11 11621 Yuba On E side of the poor dirt road, ca. 1/2 mi W of Marysville Rd, ca. 1/4 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/4 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 344 Comment
  CHSC45395  Ranunculus aquatilis var. capillaceus Lowell Ahart 1978-4-14 1638 Yuba On the bottom of a rice field, west of Kimball Lane, on the Sam Shintaffer Farm, about 2 miles north-east of Marysville. 30 Comment
  CAS-BOT-BC378927  Ranunculus bonariensis James R. Shevock; Bob Holland 1985-5-6 11127 Yuba Sacramento Valley, Beale Air Force Base east of Marysville 00000000000000000000000000000 400 Comment
  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
  RSA0019380  Ranunculus bonariensis var. trisepalus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17205 Yuba junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 ) of Wheatland. 56 Comment
  SEINET11261738  Ranunculus bonariensis var. trisepalus George Helmkamp, E. A. Helmkamp 2011-5-6 17205 Yuba East edge of Sacramento Valley: junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (471/4) of Wheatland (Camp Far West 7.5' Q.); 0 56 Comment
  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
  UCD95968  Ranunculus californicus W. R. Powell 1968-4-24 1478 Yuba along Peoria Road, 4 miles northeast of Browns Valley. 158 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
  UCR230633  Ranunculus muricatus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17200 Yuba East edge of Sacramento Valley, Spenceville Road, 4.2 miles northwest of Wheatland 55 Comment
  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
  SEINET7042654  Ranunculus occidentalis A. G. Vestal 1963-5-30 s.n. Yuba A meadow 3.9 miles south of Brownsville. Rackerby quadrangle UTM Zone 10, 641137mE, 4361952mN. Comment
  UCD96939  Ranunculus occidentalis W. R. Powell 1968-4-22 1477 Yuba along Peoria Road, 4 miles northeast of Browns Valley. 158 Comment
  UCD96949  Ranunculus occidentalis Barbara Yungert 1974-4-4 3 Yuba Sierra Foothill Field Station. Along dirt road north of Yuba River, F-2 project area. Comment
  CHSC110341  Ranunculus occidentalis var. occidentalis L. P. Janeway; Tim Hanson 2013-4-25 11090 Yuba Northern High Sierra Nevada. Plumas National Forest; headwaters area of Burnt Bridge Creek; between Oregon Hill Road and Oregon Hills; 1.8 air km north of Oregon Peak. 828 Comment
  CHSC112866  Ranunculus occidentalis var. occidentalis L. P. Janeway 2014-4-15 11228 Yuba Northern High Sierra Nevada. Plumas National Forest; east edge of Milk Ranch Meadow; on a low gap between an unnamed tributary of Little Oregon Creek to the west and an unnamed tributary of New Bullards Bar Reservoir (North Yuba River) to the east; along an eastern extension of Fountain House Road. 739 Comment
  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
  CHSC97654  Ranunculus pusillus Lowell Ahart 2007-5-12 13813 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  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
  RSA749529  Raphanus raphanistrum George K. Helmkamp, E. A. Helmkamp 2008-10-6 14211 Yuba Ostrom #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
  CHSC42048  Reseda luteola Lowell Ahart 1986-5-14 5274 Yuba Along Scott Grant Road, about 1 mile south-east of Loma rica road, about 4 miles east of Loma Rica. 152 Comment
  CAS-BOT-BC427549  Reseda luteola Lowell Ahart 1986-5-14 5274 Yuba Along Scott Grant Road, about 1 mile south east of Loma Rica Road, about 4 miles east of Loma Rica 152 Comment
  UCR168221  Rhamnus californica subsp. tomentella C. B. Wolf 1927-11-6 1447 Yuba Brown's Valley to Smartville Road, along left bank of Yuba River, near bridge 152 Comment
  CHSC100721  Rhamnus crocea L. P. Janeway 2008-5-11 9360 Yuba Northern High Sierra Nevada. In the northwestern head of Slapjack Creek; along Road 19N34, 1.3 road km southeast of Challenge-La Porte Road; about 1.2 km south-southeast of Woodleaf. 940 Comment
  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
  CHSC46509  Rhamnus crocea Lowell Ahart 1976-4-15 1072 Yuba Along the edge of Ponderosa Way, near the Brownsville Dump, south-west of Brownsville. 487 Comment
  CHSC113645  Rhamnus ilicifolia L. P. Janeway 2014-5-12 11250 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  OBI5939  Rhamnus ilicifolia Carl B. Wolf 1927-11-6 1449 Yuba Browns Valley to Smartsville rd, along left bank of Yuba river, near bridge 152 Comment
  RSA754447  Rhamnus ilicifolia L. P. Janeway 2008-5-11 9360 Yuba Northern High Sierra Nevada: In the NW head of Slapjack Creek; along Road 19N34, 1.3 road km SE of Challenge-La Porte Road; about 1.2 km SSE of Woodleaf. 940 Comment
  RSA7795  Rhamnus ilicifolia Carl B. Wolf 1927-11-6 1449 Yuba Along the Yuba River near bridge on the Browns Valley to Smartsville Road. Comment
  JEPS94514  Rhamnus rubra Lowell Ahart 1997-8-7 7822 Yuba about 3 air mi se of Challenge (on the e side of the dirt road, near an unnamed stream, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  RSA601955  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba Browns Valley to Smartsville road, along left bank of Yuba River, near Bridge 152 Comment
  RSA7866  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba Along the Yuba River near bridge on the Browns Valley to Smartsville Road. Comment
  RSA7870  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1927-11-6 1443 Yuba Along the Yuba River near bridge on the Browns Valley to Smartsville Road. Comment
  UC1121761  Rhamnus tomentella subsp. tomentella M. A. Elvin 1933-7-7 43 Yuba 2 mi e Oregon House; Smartsville Quad. 487 Comment
  UC592797  Rhamnus tomentella subsp. tomentella unknown 1927-11-6 1445 Yuba Browns Valley to Smartsville road (along left bank of Yuba River, near bridge); Yuba River Comment
  UC592798  Rhamnus tomentella subsp. tomentella unknown 1927-11-5 1444 Yuba Browns Valley to Smartsville road (along left bank of Yuba River, near bridge); Yuba River 152 Comment
  RSA121960  Rhododendron occidentale var. californicum M. A. Elvin 1933-7-14 53 Yuba Greenville. Comment
  SEINET5339726  Ribes nevadense B. M. Cunningham 1960-5-15 s.n. Yuba Along the Feather River Canyon on highway 40 alt. four miles west of Beldon, CA. 457 Comment
  UCD102460  Ribes roezlii Kathleen Keliher 1975-5-6 87 Yuba Along Forbestown Road, 100 feet from La Porte Road, 1 mile east of Woodleaf. 929 Comment
  SEINET13942762 Image available Ribes roezlii Alice Eastwood 2018-4-7 6796 Yuba Camptonville Comment
  CAS-BOT-BC209277  Ribes roezlii var. roezlii Alice Eastwood 1918-4-7 6796 Yuba Camptonville Comment
  CHSC107912  Robinia pseudoacacia L. P. Janeway 2011-9-15 10726 Yuba Northern High Sierra Nevada. Plumas National Forest; at the blocked eastern end of the eastern extension of Fountain House Road, 3.1 road km east of Oregon Hill Road; 4.3 air km southeast of Pile County Peak. 735 Comment
  UCD81499  Romulea rosea var. australis Christopher Michael Bronny 2009-4-1 11 Yuba Oat Hills' area of Sierra Nevada foothills. 183 Comment
  CAS-BOT-BC74443  Rorippa curvisiliqua Lowell Ahart 1981-6-13 2847 Yuba Near McGinn Hill, Loma Rica. 300 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
  CHSC81770  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2001-11-2 9398 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  CHSC82382  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2002-6-3 9690 Yuba On the bottom of the pond spillway, second small man made pond, about 1/4 mile south of Long Ravine Road, about 1/8 mile east of the intersection of Camp Far West Road and Long Ravine Road there is a poor Texas gate on the south side of the road, north of Camp Far West Reservoir. 102 Comment
  CHSC97747  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2007-11-8 14588 Yuba North of the waterway between the headland and the large island, on the strand of Camp Far West Reservoir, about 1/4 mile south of Rock Creek, about 1/2 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  JEPS103275  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2002-6-3 9690 Yuba On the bottom of the pond spillway, second small man made pond, about 1/4 mile south of Long Ravine Road, about 1/8 mile east of the intersection of Camp Far West Road and Long Ravine Road, north of Camp Far West Reservoir. 102 Comment
  JEPS115008  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2007-11-8 14588 Yuba North of the waterway between the headland and the large island, on the strand of Camp Far West Reservoir, about 1/4 mile south of Rock Creek, about 1/2 mile north of Bear River, about 6 miles (air) northeast of Sheridan 73 Comment
  CHSC81771  Rorippa curvisiliqua var. orientalis Lowell Ahart 2001-11-2 9397 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  CHSC97703  Rorippa curvisiliqua var. orientalis Lowell Ahart 2007-11-8 14587 Yuba North of the waterway between the headland and the large island, on the strand of Camp Far West Reservoir, about 1/4 mile south of Rock Creek, about 1/2 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  JEPS115009  Rorippa curvisiliqua var. orientalis Lowell Ahart 2007-11-8 14587 Yuba North of the waterway between the headland and the large island, on the strand of Camp Far West Reservoir, about 1/4 mile south of Rock Creek, about 1/2 mile north of Bear River, about 6 miles (air) northeast of Sheridan 73 Comment
  JEPS115015  Rorippa curvisiliqua var. orientalis Lowell Ahart 2007-11-8 14587 Yuba North of the waterway between the headland and the large island, on the strand of Camp Far West Reservoir, about 1/4 mile south of Rock Creek, about 1/2 mile north of Bear River, about 6 miles (air) northeast of Sheridan 73 Comment
  CAS-BOT-BC7106  Rosa bridgesii Lester Rowntree 1941-5-14 s.n. Yuba On road bewteen Dobbin & Camplonville Comment
  CHSC10755  Rosa bridgesii Lowell Ahart 1968-5-15 Yuba Near Bullards Bar Dam. 914 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
  CHSC69152  Rosa bridgesii Lowell Ahart 1997-8-7 7828 Yuba On the east side of the dirt road, near a unnamed stream, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  CHSC84149  Rosa bridgesii Lowell Ahart 2003-7-2 10342 Yuba About 200 yards south of the 4-H Camp, on the west side of Oregon Hill Road, about 1/2 mile north of Marysville Road, about 2 miles (air) northeast of Dobbins. 815 Comment
  CHSC87348  Rosa bridgesii Lowell Ahart 2004-4-27 10762 Yuba Near a large wide trail, very start of a small drainage, drainage crosses a water ditch and continues on and crossed the road, about 350 yards northwest of the road, serpentine area, about 40 yards southwest of the marker for sections 9, 10, 16, and 15, about 1/2 mile (air) southeast of Woodleaf. 1012 Comment
  CHSC95060  Rosa bridgesii L. P. Janeway 2006-5-24 8611 Yuba Northern High Sierra Nevada Foothills. Along Ponderosa Way 1.0 road km southeast of Robinson Mill Road; 1.2 air km southeast of Robinson Mills and Forbestown Road. 768 Comment
  JEPS108555  Rosa bridgesii L. P. Janeway 2006-5-24 8611 Yuba Northern High Sierra Nevada Foothills. Along Ponderosa Way 1.0 road km southeast of Robinson Mill Road; 1.2 air km southeast of Robinson Mills & Forbestown Road 768 Comment
  RSA712870  Rosa bridgesii L. P. Janeway 2006-5-24 8611 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way 1.0 road km SE of Robinson Mill Rd. 1.2 air km SE of Robinson Mills and Forbestown Road. 768 Comment
  UCD113387  Rosa bridgesii Kathleen Keliher 1975-5-30 119 Yuba Along New York Flat Road, W of Forbestown. 822 Comment
  RSA317344  Rosa californica James R. Shevock 1972-5-19 1757 Yuba Hwy 70, north of Marysville 21 Comment
  CAS-BOT-BC147669  Rosa canina John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54079 Yuba About 2 miles northeast of Dobbins on Oregon Hill Road 701 Comment
  CDA14567  Rosa canina G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3045 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  UC1776779  Rosa canina G. Douglas Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3045 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. J. T. Howell #54079 701 Comment
  CDA14569  Rosa eglanteria G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3047 Yuba La Porte - Quincy Road 3.6 miles northeast of Strawberry Valley at the Plumas county line. 1280 Comment
  CHSC69153  Rosa gymnocarpa Lowell Ahart 1997-8-7 7817 Yuba On the bottom of a stream, a branch of Little Oregon Creek, on the west side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  JEPS95029  Rosa gymnocarpa Lowell Ahart 1997-8-7 7817 Yuba Peterson Ridge Rd. ca. 3 mi. (air) s.e. Challenge (bottom of small stream - a branch of Little Oregon Creek, on w. side of dirt rd.) 762 Comment
  SJSU10220  Rosa gymnocarpa C. W. Sharsmith 1983-6-8 8801 Yuba Oak Flat Rd near Union Hill 1371 Comment
  CAS-BOT-BC148328  Rosa pisocarpa Alice Eastwood 1921-5-22 10569 Yuba Los Vergils 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
  CHSC116312  Rotala indica Lowell Ahart 2015-11-19 20686 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
  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
  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
  CHSC76284  Rotala ramosior Lowell Ahart 1999-9-17 8246 Yuba On the margins of a rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  JEPS124308  Rotala ramosior Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20650 Yuba Below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CDA37502  Rotala ramosior L. Ahart 1999-9-17 8246 Yuba South of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer s rice dryer, about 5 miles (air) northeast of Marysville. Comment
  CHSC108221  Rubus armeniacus Lowell Ahart 2011-6-7 17410 Yuba Along the edge of the dirt road, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCD113780  Rubus armeniacus Barbara Yungert 1974-5-14 153 Yuba along irrigation ditch in SC-13 project area, Sierra Foothill Field Station. 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
  CHSC69154  Rubus laciniatus Lowell Ahart 1997-8-7 7815 Yuba On the bottom of a stream, a branch of Little Oregon Creek, on the west side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  CHSC69155  Rubus leucodermis Lowell Ahart 1997-8-7 7814 Yuba On the bottom of a stream, a branch of Little Oregon Creek, on the west side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  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
  RSA1886  Rubus ursinus Carl B. Wolf 1930-10-13 1740 Yuba On Browns Valley - Smartsville Rd. 152 Comment
  UCD17924  Rubus ursinus H. Olmo; T. S. Mallah 1953-3-24 53 27 B Yuba California. Yuba County: Highway 28 in Smartville. Growing 50 yards east of bridge on creek bank. Comment
  UCD17935  Rubus ursinus H. Olmo; T. S. Mallah 1953-3-24 53 27 B Yuba California. Yuba County: Highway 28 in Smartville. Growing 50 yards east of bridge on creek bank. Comment
  UCD17942  Rubus ursinus H. Olmo; T. S. Mallah 1953-3-24 53 27 A Yuba California. Yuba County: Highway 28 in Smartville. Growing 50-100 yards east of monument. Comment
  UCR197046  Rumex acetosella George K. Helmkamp, E. A. Helmkamp 2008-5-20 13470 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  UCR206956  Rumex acetosella George K. Helmkamp, E. A. Helmkamp 2009-5-28 14828 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 Comment
  CHSC108225  Rumex conglomeratus Lowell Ahart 2011-6-7 17407 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS118301  Rumex conglomeratus Lowell Ahart 2011-6-7 17407 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CAS-BOT-BC421732  Rumex conglomeratus Lewis S. Rose 1940-5-28 40383 Yuba Browns Valley 60 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
  JEPS113628  Rumex pulcher Lowell Ahart 2007-5-14 13868 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  RSA727115  Rumex pulcher L. Ahart 2007-5-14 13868 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  CHSC97507  Sagina apetala Lowell Ahart 2007-5-12 13787 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS113694  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
  JEPS95858  Sagittaria latifolia var. obtusa Lowell Ahart 1999-9-17 8259 Yuba Sam Shintaffer Farm; about 1/8 mile southeast of the intersection of Ellis Avenue and Jack Slough Road; about 4 miles (air) northeast of Marysville 21 Comment
  CHSC46520  Sagittaria montevidensis subsp. calycina Lowell Ahart 1977-9-25 1590 Yuba On the bottom of an irrigation ditch, on the Sam Shintaffer Farm, about 2 miles north-east of Marysville. 30 Comment
  JEPS95980  Sagittaria montevidensis subsp. calycina Lowell Ahart 1999-9-17 8237 Yuba south of Woodruff Lane; just east of Mathews Road; east of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  CHSC108202  Salix exigua Lowell Ahart 2011-6-7 17414 Yuba Just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CAS-BOT-BC104032  Salix gooddingii C. Hart Merriam 1906-9-1 s.n. Yuba Mouth of the Yuba River, Marysville Comment
  CAS-BOT-BC104034  Salix gooddingii Saichi Kawahara 1968-4-13 289 Yuba Park's Bar, north bank of the Yuba River at highway 20 91 Comment
  JEPS38405  Salix gooddingii W. L. Jepson Apr. 1891 15 s Yuba between Sacramento and Marysville (Harding's Landing, Sacramento R.); Sacramento R., Harding's Landing Comment
  CHSC108866  Salix lasiolepis Lowell Ahart 2012-2-28 17758 Yuba On the north side of Fruitland Road, about 1/2 mile east of Ramirez Road, about 13 miles northeast of Marysville. 32 Comment
  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
  CDA20940  Salsola ryanii P. Akers 2002-9-19 RT- 10 -3 Yuba Sacramento Valley; Smartville Rd., 0.3 mi. N of Daugherty. 30 Comment
  CHSC51233  Salvia sonomensis Lowell Ahart 1976-4-15 1070 Yuba Growing near the Brownsville Dump, on the east side of Ponderosa Way, about 2 miles west of Brownsville. 518 Comment
  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
  UCR169027  Sambucus mexicana David Charlton 2005-5-16 8023 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  JEPS100359  Sanguisorba annua Dean W. Taylor 2001-6-6 17779 Yuba 3 air mi NE of Strawberry Valley (Slate Creek, at bridge of Forest Road 35); Yuba River Watershed 1036 Comment
  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
  UC1128695  Sanguisorba minor subsp. muricata A. E. Wieslander and R. W. Lundh 1933-6-19 319 Yuba 2 mi s Kentucky House (L); Smartsville Quad., s of Kentucky House Comment
  UC519220  Sanguisorba minor subsp. muricata A. E. Wieslander and R. W. Lundh 1933-6-19 319 Yuba 2 mi s Kentucky House 487 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
  UCD80015  Sanicula bipinnata CNPS SN Foothill Team 2005-3-15 SNFN 0056 Yuba CDFG Spenceville Wildlife Area. Plot is located on top of east-facing slope, WSW of Pittman Pond, and 2 miles W of junction between Smartville Road and Pittman Road. 174 Comment
  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
  CHSC96483  Sanicula bipinnatifida Lowell Ahart 2007-4-17 13678 Yuba On the west side of a poor dirt road, west of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  JEPS118093  Sanicula bipinnatifida Lowell Ahart 2011-6-7 17371 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  SBBG5262  Sanicula bipinnatifida H. and M. Dearing 1939-5-8 3299 Yuba near Bullard's Bar Comment
  UCD111110  Sanicula bipinnatifida Christopher Mallek 2008-1 s. n. Yuba Daken Flat. 675 Comment
  UCD127949  Sanicula bipinnatifida Barbara Yungert 1974-4-16 42 Yuba Campbell Valley, Sierra Foothill Field Station. Comment
  UCD128077  Sanicula crassicaulis Barbara Yungert 1974-5-9 143 Yuba west of Road 6, K 1-11 project area, Sierra Foothill Field Station. Comment
  JEPS88900  Sanicula tuberosa Lowell Ahart 1994-6-5 7302 Yuba about 3 air mi e Forbestown (on s side of Costa Creek, on e side of Forbestown Road); s side of Costa Creek 853 Comment
  JEPS88901  Sanicula tuberosa Lowell Ahart 1994-6-5 7302 Yuba about 3 air mi e Forbestown (on s side of Costa Creek, on e side of Forbestown Road); Costa Creek, Forbestown Road 853 Comment
  CHSC68467  Scandix pecten-veneris Lowell Ahart 1997-4-6 7716 Yuba On the south side of the road, east of the intersection of Scott Forbes Road and Peoria Road, just southeast of the bridge across Dry Creek, about 14 miles northeast of Marysville. 60 Comment
  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
  UCD37845  Scandix pecten-veneris Beecher Crampton 1962-4-24 6242 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  SEINET7042650  Scandix pecten-veneris A. G. Vestal 1963-5-30 s.n. Yuba Weedy depression near Dry Creek and north oh Sicard Flat. Smartville quadrangle UTM Zone 10, 642203mE, 4345148mN. Comment
  CHSC83049  Sceptridium multifidum Lowell Ahart 2002-10-9 9964 Yuba East of a small stream, at the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1075 Comment
  CHSC70775  Schoenoplectus acutus var. occidentalis L. P. Janeway 1997-6-26 5174 Yuba South side of Woodruff Lane, 0.1 mi west of Mathews Lane; about 4 1/2 mi north-northeast of Marysville. 23 Comment
  CHSC63197  Scirpus microcarpus Lowell Ahart 1994-6-27 7388 Yuba Near the north-east side of Schwartz Meadow, on the eastside of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  JEPS95411  Scirpus microcarpus Lowell Ahart 1994-6-27 7388 Yuba 4 mi NE of Strawberry Valley (near the NE side of Schwartz Meadow, on the E side of La Porte Road) 1219 Comment
  UC1552704  Scirpus microcarpus Frederica Bowcutt 1985-6-8 590 Yuba 1 air mi se Camptonville (12 air mi n of Nevada City, along Oregon Creek, Tahoe National Forest); Tahoe National Forest, along Oregon Creek 762 Comment
  CDA2626  Scirpus mucronatus L. Ahart 1999-9-17 8249 Yuba Sam Shintaffer Farm, south of Woodruff Lane, south of Mathews Road, 100 yards south of Sam Shintaffer s rice dryer, about 5 miles (air) northeast of Marysville. Comment
  SEINET13710634  Scirpus setaceus Lowell William Ahart, Lowell William Ahart 2003-1 10363 Yuba 5 Air Mi. N Od Dobbins (39 Deg 26'11.7"N, 121 Deg 12'07.3"W) 2746 Ft. 837 Comment
  UCD33109  Scirpus setaceus Beecher Crampton 1966-6-14 7752 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  CAS-BOT-BC243534  Scribneria bolanderi Carl B. Wolf 1937-5-12 8629 Yuba 4 mi. NE of Wheatland on road to Grass Valley, Sacramento Valley 60 Comment
  CHSC97663  Scribneria bolanderi Lowell Ahart 2007-5-14 13855 Yuba Bottom of swales, about 100 yards east of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville. 29 Comment
  UC1153789  Scribneria bolanderi Beecher Crampton 1957-6-5 4147 Yuba 1/2 mi w of Oregon House Post Office 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
  UCD124854  Scrophularia californica Barbara Yungert 1974-5-23 184 Yuba south of Route 6, K 1-11 project area, Sierra Foothill Field Station. 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
  UC1075582  Scutellaria californica E. K. Balls and L. W. Lenz 1956-6-20 21852 Yuba 4 mi sw of Camptonville (along State Hwy 49) 975 Comment
  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
  RSA712787  Scutellaria californica L. P. Janeway 1994-1-7 4675 Yuba Northern High Sierra Nevada. West side of Slate Creek about 3 air mi northeast of Strawberry Valley; along Road 20N35 0.1 mi south of the bridge across Slate Creek. 1006 Comment
  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
  UC565456  Scutellaria tuberosa Herbert L. Mason 1927-5-11 3728 Yuba vicinity of Dobbins 457 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
  CHSC90354  Selaginella hansenii Lowell Ahart 2005-2-28 11565 Yuba West of a poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 403 Comment
  JEPS107677  Selaginella hansenii Lowell Ahart 2005-2-28 11565 Yuba West of a poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica 403 Comment
  JEPS120958  Selaginella hansenii Lowell Ahart 2013-9-11 19027 Yuba On N side of Dry Creek, just above the high water line of Collins Lake, about 300 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  RSA0037130  Selaginella hansenii Lowell A. Ahart 2013-11-30 19312 Yuba On north side of Dry Creek, just above the high water line of Collins Lake, about 300 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 360 Comment
  RSA715713  Selaginella hansenii Lowell A. Ahart 2005-2-28 11565 Yuba Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 0.5 mile N of Loma Rica Road, about 5 miles (air) NE of Loma Rica., W of a poor dirt road, about 0.5 mile W of Marysville Road, about 0.5 mile N of Parking Area 3. 404 Comment
  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
  SBBG119786  Senecio aronicoides L. Ahart 2004-4-27 10766 Yuba ca. 20 yards W of drainage, ca. 40 yards S of the rd, ca. 0.5 air mi SE of Woodleaf 931 Comment
  CHSC108327  Senecio vulgaris Lowell Ahart 2011-6-7 17383 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  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
  JEPS118293  Senecio vulgaris Lowell Ahart 2011-6-7 17383 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCD135866  Senecio vulgaris Barbara Yungert 1974-4-19 19 Yuba north of Yuba River, Sierra Foothill Field Station. Comment
  UC1557896  Sericocarpus oregonensis subsp. californicus J. Semple and S. Heard 1986-8-13 8413 Yuba near, 1.3 km w of New York Flat Rd. Brownsville (La Porte Rd., (Yuba E21)) Comment
  UCD135893  Sericocarpus oregonensis subsp. californicus G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12831 Yuba Northern Sierra Nevada Mountains: along Hwy CA-49, 0.5 mile south of Camptonville. 817 Comment
  CAS-BOT-BC243560  Setaria parviflora Roxana S. Ferris 1927-11-5 6940 Yuba 7 miles from Brown Valley on Marysville Road Comment
  JEPS113868  Setaria parviflora Lowell Ahart 2007-6-30 14232 Yuba Near a new ditch, near and east of a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CAS-BOT-BC243656  Setaria pumila Roxana S. Ferris 1927-11-5 6939 Yuba 7 miles west of Brown Valley Comment
  CHSC96869  Setaria pumila Lowell Ahart 2007-6-30 14232 Yuba Near a new ditch, near and east of a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  HSC10908  Setaria pumila T. F. Newman 1965-8-22 6558 Yuba Carnes Ranch, 10 mi. N of Marysville Comment
  JEPS94367  Setaria pumila Lowell Ahart 1997-8-13 7862 Yuba about 2 1/4 air mi e of Browns Valley (on s side of Scott Forbes Road, 1/4 mi e of intersection of Scott Forbes Road and Peoria Road, just e of Gray Drive); Scott Forbes Road 91 Comment
  JEPS113723  Setaria viridis Lowell Ahart 2007-5-14 13844 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  JEPS99001  Setaria viridis Lowell Ahart 2001-8-14 9109 Yuba On the north side of Marysville Road, about 50 yards east of the east end of Bullards Bar Dam. 609 Comment
  CAS-BOT-BC263234  Sherardia arvensis Lowell Ahart 2007-5-12 13814 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC108187  Sherardia arvensis Lowell Ahart 2011-6-7 17413 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC97647  Sherardia arvensis Lowell Ahart 2007-5-12 13814 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCD122001  Sherardia arvensis Kathleen Keliher 1975-4-13 62 Yuba Near Lower Cook Road, K 1-11 project area, Sierra Foothill Field Station. 243 Comment
  UCD122009  Sherardia arvensis Barbara Yungert 1974-5-1 104 Yuba Near road and SC-12 fence, SC-14 project area, Sierra Foothill Field Station. Comment
  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
  CAS-BOT-BC26194  Sidalcea gigantea G. L. Clifton 1996-8-17 35038 Yuba At Travis Saddle along La Porte Road 1097 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
  SEINET7085244  Sidalcea gigantea Steven R. Hill 2010-7-17 38555 Yuba Along La Porte Road, 950 feet northeast of Travis Saddle. 13.6 kilometers north-northwest of Camptonville. Just southwest of Strawberry Valley Sierra Nevada. Type Locality. Coordinate Datum: WGS84/NAD83. 1100 Comment
  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
  UC871451  Sidalcea hartwegii Lewis S. Rose 1940-5-28 40400 Yuba Oregon House 457 Comment
  RSA726961  Sidalcea hirsuta L. Ahart 2007-5-14 13851 Yuba About 1/2 mile north of Fruitland Road, about 13.5 miles (air) northeast of Marysville. 29 Comment
  UCD80458  Sidalcea malviflora CNPS SN Foothill Team 2005-5-31 SNFN 0330 b Yuba BLM, Ponderosa Landfill, near the southeast corner of the parcel (east of the defunct landfill). 685 Comment
  CDA36506  Sidalcea malviflora subsp. asprella G. D. Barbe, T. C. Fuller 1982-6-14 3672 Yuba 0.3 mile east of Challenge, 3.2 miles southwest of Woodleaf. Comment
  UC1728658  Silene bridgesii Richard Olmstead 1986-6-13 843 Yuba Junction of Oregon Creek with Middle Fork Yuba River (Oregon Creek Picnic Ground); Oregon Creek Picnic Ground 451 Comment
  RSA477854  Silene californica J. E. Cramsie 1932-5-1 s.n. Yuba Smartville. Comment
  CHSC97483  Silene gallica Lowell Ahart 2007-5-14 13881 Yuba Center of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  UCR169008  Silene gallica David Charlton 2005-5-16 8024 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  UCD98717  Silene gallica Barbara Yungert 1974-5-7 128 Yuba Forbes Hill; F 1-14 project area, Sierra Foothill Field Station. Comment
  UCD98992  Silene laciniata subsp. californica Kathleen Keliher 1975-4-19 64 Yuba 100 yards below Englebright Reservoir, Sierra Foothill Field Station. 152 Comment
  CAS-BOT-BC74927  Sinapis arvensis Lowell Ahart 1974-5-1 s.n. Yuba About 4 miles west of Loma Rica. 300 Comment
  CAS-BOT-BC75047  Sisymbrium altissimum Lowell Ahart 1977-4-16 s.n. Yuba Marysville. 30 Comment
  CHSC97450  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
  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
  CHSC73487  Sisyrinchium bellum H. Durio, 1995-7-13 Yuba Ca 5 air mi NE of Strawberry Valley, and ca 1.5 mi E of Slate Ck. On unnamed stream flowing S into Canyon Ck, Ca 500 ft W of USFS Rd 20N35 via unnamed dirt rd. 1249 Comment
  UCD37892  Sisyrinchium bellum Beecher Crampton 1962-4-24 6318 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CHSC43368  Solanum americanum Lowell Ahart 1977-8-31 1561 Yuba Along the edge of Jack Slough, Shintaffer Farms, about 2 miles north-east of Marysville. 27 Comment
  UC581344  Solanum carolinense H. Crane September, 1937 Yuba near Marysville Comment
  CDA36460  Solanum elaeagnifolium Kevin Roush 2011-8-8 PDR# 1616478 Yuba Marysville; Biz Johnson Dr. under 10th St. Bridge. 0 Comment
  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
  JEPS113635  Solanum sarrachoides Lowell Ahart 2007-5-14 13848 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  CAS-BOT-BC364917  Solidago velutina subsp. californica Lowell Ahart 1983-8-10 4275 Yuba Along the Peterson Ridge Road, about 5 miles east of Challenge 1000 Comment
  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
  CAS-BOT-BC374416  Sonchus asper Lowell Ahart 1979-6-25 s.n. Yuba One mile south of Challenge 700 Comment
  CHSC116037  Sonchus asper subsp. asper Lowell Ahart 2015-11-19 20678 Yuba 100 yards or more north of the spillway area, below the high water line, west side of Lake Francis, about 1-1/2 miles south of Dobbins. 512 Comment
  UCD136211  Sonchus oleraceus Barbara Yungert 1974-5-6 118 Yuba south of station headquarters, Sierra Foothill Field Station. Comment
  HSC10992  Sorghum halepense T. F. Newman 1965-9-9 6569 Yuba Helder Ranch, 11 mi. N of Marysville on Hwy. 70 Comment
  UCD92639  Sorghum halepense A. A. Beetle 1941-6-26 2735 Yuba Near Marysville. Comment
  UCR201936  Sorghum halepense George K. Helmkamp, E. A. Helmkamp 2008-10-6 14206 Yuba Sacramento Valley, junction of CA-65 and Ostrom No. 3 Road, southeast of Olivehurst 24 Comment
  JEPS118315  Spergula arvensis subsp. arvensis Lowell Ahart 2011-6-7 17390 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  JEPS113636  Spergularia bocconi Lowell Ahart 2007-5-14 13865 Yuba Along the dirt road, near the power tower, power tower is about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  CHSC45562  Spergularia rubra Lowell Ahart 1980-8-12 2565 Yuba On a gravel bar, a little below where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  UCD99287  Spergularia rubra G. K. Helmkamp 2006-10-10 11523 Yuba Northern Sierra Nevada Mountains Foothills; along Hwy CA-49 just north of the Nevada County line at the Middle Yuba River bridge. 451 Comment
  UCR179332  Spergularia rubra George K. Helmkamp, E. A. Helmkamp 2006-10-10 11523 Yuba Northern Sierra Nevada Mountains Foothills, along Calif. Hwy 49 just north of the Nevada County line at the Middle Yuba River bridge 451 Comment
  CHSC106053  Spiranthes porrifolia Lowell Ahart 2010-7-27 16919 Yuba Along small streams in the meadow, on the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. 1219 Comment
  JEPS98323  Spiranthes porrifolia Lowell Ahart 2000-6-11 8473 Yuba 8 air miles S of Smartville (E side of a small wash, W of Smartville Rd, about 1/8 mi SW of int of Waldo Rd and Smartville Rd) 99 Comment
  CHSC96987  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
  JEPS113685  Stellaria borealis subsp. sitchana Lowell Ahart 2007-8-7 14408 Yuba Hampshire Creek Meadow, about 20 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. On the east side of a small pond, on the west side of the dirt road 1021 Comment
  UCR206959  Stellaria media George K. Helmkamp, E. A. Helmkamp 2009-5-28 14829 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 Comment
  JEPS94445  Stephanomeria elata Lowell Ahart 1997-8-30 7877 Yuba about 3 air mi e of Challenge (on the w side of the dirt road, in a clear cut, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  CHSC83038  Stephanomeria virgata subsp. pleurocarpa Lowell Ahart 2002-10-10 9980 Yuba On the east side of the dirt road, east of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20. 166 Comment
  JEPS103446  Stephanomeria virgata subsp. pleurocarpa Lowell Ahart 2002-10-10 9980 Yuba On the E side of the dirt road, E of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, ca 2 miles (air) N of Bridgeport, ca 18 miles N of Highway 20. 166