Search Results — 2000 specimen records retrieved (1552 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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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CHSC81795  Abutilon theophrasti Lowell Ahart 2001-11-2 9400 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  UCR201764  Abutilon theophrasti George K. Helmkamp, E. A. Helmkamp 2008-10-6 14210 Yuba Sacramento Valley, Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  CAS-BOT-BC30407  Achillea millefolium Lowell Ahart 1979-6-25 s.n. Yuba 2 miles east of Challenge 700 Comment
  UCR197051  Achillea millefolium George K. Helmkamp, E. A. Helmkamp 2008-5-20 13475 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  UCD128377  Achillea millefolium Barbara Yungert 1974-4-25 84 Yuba south of road near gate between SC-13 and SC-14 project areas, Sierra Foothill Field Station. Comment
  CHSC100745  Achnatherum lemmonii L. P. Janeway 2008-5-11 9364 Yuba Northern High Sierra Nevada. In the northwestern head of Slapjack Creek; along Road 19N34, 1.3 road km southeast of Challenge-La Porte Road; about 1.2 km south-southeast of Woodleaf. 940 Comment
  UCD32531  Achnatherum lemmonii Beecher Crampton 1954-5-10 1847 Yuba Yuba County, 6 miles south of Camptonville, along highway 49, north slope near the middle of the Yuba River. Comment
  UCD50454  Achnatherum lemmonii Beecher Crampton 1965-6-17 7381 Yuba 4 miles south of Brownsville, Willow Glen Road. 670 Comment
  UCD50717  Achnatherum lemmonii Beecher Crampton 1957-6-5 4142 Yuba 1 mile east of Stanfield Hill. Comment
  CHSC44595  Achnatherum occidentale subsp. californicum Lowell Ahart 1979-6-25 1947 Yuba About 2 miles east of Challenge. 640 Comment
  CAS-BOT-BC218044  Achnatherum stillmanii Lowell Ahart 1979-6-25 s.n. Yuba 1 mile S of Challenge 700 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
  UCD128415  Achyrachaena mollis E. J. Kinbacher 1953-4-28 9 Yuba State Highway 20, 8 miles northeast of Marysville. 24 Comment
  UCD103961  Acmispon americanus var. americanus Barbara Yungert 1974-5-8 135 Yuba North of Yuba River, f-2 project area, Sierra Foothill Field Station. Comment
  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
  UCD104017  Acmispon argophyllus var. fremontii Barbara Yungert 1974-5-8 136 Yuba North of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UCD104099  Acmispon brachycarpus Barbara Yungert 1974-4-4 4 Yuba Along four wheel drive road, north of Yuba River, Sierra Foothill Field Station. Comment
  UCD38321  Acmispon grandiflorus Beecher Crampton 1954-5-10 1844 Yuba Hwy 49, 7 miles south of Camptonville. Comment
  SBBG3418  Acmispon grandiflorus var. grandiflorus H. and M. Dearing 1939-5-7 Yuba Brownsville 762 Comment
  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
  UCD37860  Acmispon parviflorus Beecher Crampton 1962-4-24 6265 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  SEINET11261963  Adenocaulon bicolor Robert L. Johnson, Mikel R. Stevens 2015-7-13 3966 Yuba Sierra Nevadas. 2.9 rd mi E of junction with Challenge Cuttoff Rd on La Porte Rd, Sharon Valley. At junction of La Porte Rd and Milk Ranch Rd (dirt rd).; 0 973 Comment
  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
  CAS-BOT-BC206889  Aesculus californica Alice Eastwood 1921-5-22 10542 Yuba Los Vergils Comment
  UCR194909  Aesculus californica George K. Helmkamp, E. A. Helmkamp 2007-5-26 12132 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville 802 Comment
  JEPS18172  Agnorhiza bolanderi Rimo Bacigalupi with G. T. Robbins and F. Chisaki 1956-4-19 5619 Yuba 1 mi n Dobbins (0.4 mi s of Dobbins Ranger Station, along road from Oregon House to Dobbins) 571 Comment
  CAS-BOT-BC15346  Agoseris heterophylla Alice Eastwood 1921-5-22 10511 Yuba Los Verjeles Comment
  SEINET5713145  Agoseris heterophylla Br Vance 1974-1 9 Yuba 3 air miles 20 degrees east of north from Station Headquarters, University of California Sierra Foothill Range Field Station.; UC Foothill Field Station 457 Comment
  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
  SBBG121198  Agrimonia gryposepala L. Ahart 2007-8-7 14424 Yuba SE part of Hampshire Crk Meadow, ca. 50 yards E of the dirt rd, ca. 1 mi (air) E of Clipper Mills 1021 Comment
  POM266621  Agrostis avenacea J. C. Roos 1939-7-3 1518 Yuba Marysville. Comment
  RSA727117  Agrostis avenacea L. Ahart 2007-5-14 13862 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  UCD51766  Agrostis avenacea Beecher Crampton 1965-5-11 7323 Yuba 2.5 miles southwest Brown's Valley. Comment
  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
  UCD33115  Agrostis exarata Beecher Crampton 1966-6-14 7760 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  UCD52102  Agrostis exarata Beecher Crampton 1965-6-17 7377 Yuba 3/4 mile north of Stanfield Hill, Willon Glen Creek. 396 Comment
  UCD52285  Agrostis exarata Beecher Crampton 1964-10-22 7220 Yuba 3 miles east of Brown's Valley, Dry Creek. Comment
  CAS-BOT-BC139343  Agrostis idahoensis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54088 Yuba Sierra Nevada. 3.6 miles northest of Strawberry Valley on La Porte - Quincy road. 1280 Comment
  CDA14571  Agrostis idahoensis G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3050 Yuba La Porte _ Quincy Road 3.6 miles northeast of Strawberry Valley at the Plumas county line. 1280 Comment
  UCD53049  Agrostis microphylla Robert E. Preston 1995-5-10 867 Yuba N edge of Beale Air Force Base, 0.4 mi. e. of jct Smartsville Road and Doolittle Drive. 41 Comment
  CHSC116336  Agrostis scabra Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-19 20679 Yuba Spillway area, at the west side and near the top of Lake Francis Dam, below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  CDA28150  Agrostis stolonifera L. Ahart 2003-7-6 10366 Yuba East of the power line, about 50 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. Comment
  SEINET2473438 Image available Agrostis stolonifera George K. Helmkamp, E. A. Helmkamp 2007-1 12841 Yuba Northern Sierra Nevada Mountains Foothills; along Hwy CA-49, 0.5 mile south of Camptonville 817 Comment
  UCD74335  Agrostis stolonifera G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12841 Yuba Northern Sierra Nevada Mountains: along Hwy. CA-49, 0.5 mile south of Camptonville. 817 Comment
  CHSC107312  Aira caryophyllea L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10372 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. 750 Comment
  JEPS118730  Aira caryophyllea L. P. Janeway and Melanie Williams, Tim Hanson 2011-6-9 10372 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. French Corral 7.5' quad. Comment
  SEINET5335997  Aira caryophyllea A. Tiehm 1975-1 631 Yuba U.C. Sierra 198 Comment
  UCD55732  Aira caryophyllea Beecher Crampton 1957-6-5 4128 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  UCD55763  Aira caryophyllea Barbara Yungert 1974-4-25 G- 1 Yuba Sierra Foothill Field Station, Lower Scott project area, along four wheel drive road. Comment
  UCD55768  Aira caryophyllea Beecher Crampton 1962-4-24 6277 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCR118917  Aira caryophyllea Beecher Crampton 1957-6-5 4154 a Yuba Central Sierra Nevada foothills., 1.3 Miles east of Oregon House Store 457 Comment
  SEINET5335999  Aira caryophyllea C. Aarstad 1979-4-28 s.n. Yuba at junct. of Rt. 20 and N Fork of Browns Valley 183 Comment
  SEINET5336000  Aira caryophyllea D. Selleck 1979-4-27 s.n. Yuba Sierra Field Station-UC Davis Comment
  UCD55798  Aira caryophyllea var. capillaris Beecher Crampton 1957-6-5 4153 Yuba 1.3 miles east of Oregon House Store. Comment
  CAS-BOT-BC138349  Aira caryophyllea var. caryophyllea Gordon H. True 1963-4-17 1177 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Highway. 30 Comment
  UC1153945  Aira elegantissima Beecher Crampton 1957-6-5 4153 Yuba 1.3 mi e Oregon House Store Comment
  UCD32892  Aira elegantissima Beecher Crampton 1965-5-11 7317 Yuba Yuba County, 2.5 miles S.W. Brown Valley. Comment
  JEPS104656  Alisma lanceolatum Lowell Ahart 2003-7-17 10415 Yuba On the bottom of a small stream, on the w side of Smartville Rd, ca 2 mi n of the intersection of Waldo Rd and Smartville Rd, ca 6 mi (air) south of Smartville. 129 Comment
  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
  UCD22594  Allium L. K. Mann 1957-4-19 s.n. Yuba At east edge of top of dam across north fork of Yuba River, between Dobbins and North San Juan. Comment
  CHSC22947  Allium amplectens Robert A. Schlising; G. Keator 1963-4-8 2498 Yuba Along Hwy 20, area of Browns Valley, 29.4 miles west of Nevada City. Comment
  CHSC84322  Allium amplectens Lowell Ahart 2003-7-17 10418 Yuba On both sides of Marysville Road, about 1/2 miile west of Oregon House. 466 Comment
  JEPS13879  Allium amplectens Rimo Bacigalupi with L. R. Heckard, R. D. Sanderson, and G. Bacigalupi 1952-6-20 3758 Yuba 1.5 mi due s Brownsville (along road from Brownsville to Oregon House, just n of Washington Mill) 609 Comment
  UCR266162  Allium amplectens L. K. Mann 1957-4-19 s.n. Yuba No. Sierra Nevada Foothills, between Browns Valley and Dobbins, 0.2 mi west of Oregon House Post Office 466 Comment
  SEINET8466776 Image available Allium amplectens D. W. McNeal 1975-5-9 1599 Yuba above a rd. cut on Hwy. #20 just above Smartville, ca. 1.5 mi. w. of the Yuba-Nevada Co. line. Comment
  UCD141817  Allium amplectens L. K. Mann 1958-4-20 s.n. Yuba along Highway 20, a few miles east of Marysville near culvert #A-7.14. Comment
  UC1299738  Allium membranaceum Freed W. Hoffman 1949-5-14 2809 Yuba at e abutment of dam, Bullards Bar Dam and Reservoir Bullards Bar Dam and Reservoir Comment
  CAS-BOT-BC472979  Allium membranaceum Barbara T. Keller 1975-6-10 1519 Yuba Willow Glen Road from Stanfield Hill to Brownsville, 11.5 miles north of junction of Willow Glen Road and Marysville Road. Comment
  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
  UCD37893  Allium peninsulare Beecher Crampton 1962-4-24 6319 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  SJSU7115  Allium peninsulare J. B. Willis 1969-4-27 73 Yuba S bank Yuba River on old stage rd to Timbuctoo, just off State Hghwy 20, 18 mi E of Marysville Comment
  UCD138594  Allium peninsulare Beecher Crampton 1962-4-24 6319 Yuba UC Sierra Foothill Range Field Station, 5 miles east Brown's Valley. Comment
  UCD23433  Allium peninsulare Gordon Murray 1977-5-15 1 Yuba Aromatic onion odor. Creek side, shady slope. Jed Smith Creek off Scott Forbes Rd. in Browns Valley. 22 miles east of Marysville on Hwy 20. 304 Comment
  SBBG867  Allium sanbornii H. and M. Dearing 1939-5-6 3289 Yuba N of Challenge Comment
  CAS-BOT-BC132124  Allium sanbornii var. sanbornii Lowell Ahart 1980-8-12 2531 Yuba About 1 1/2 miles east of Woodleaf Comment
  CHSC107278  Allium sanbornii var. sanbornii L. P. Janeway 2011-8-10 10643 Yuba Northern High Sierra Nevada. Plumas National Forest; serpentine slope on southeast side of Road 19N04 1.3 km north of Challenge-La Porte Road; 2.2 air km northeast of Challenge. 1023 Comment
  NY247881  Allium sanbornii var. sanbornii A. W. Wood 1866-1 s.n. Yuba Near Fosters Bar. S.S. Sauborn Esq. 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
  CHSC87306  Allotropa virgata Lowell Ahart 2004-4-27 10758 Yuba West of the water ditch, about 150 yards northwest of where the drainage crosses the road, about 1/2 mile (air) southeast of Woodleaf. 983 Comment
  CHSC108186  Alnus rhombifolia Lowell Ahart 2011-6-7 17385 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC44541  Alopecurus carolinianus Lowell Ahart 1978-4-14 1639 Yuba West of Kimball Lane and on the property of Shintaffer Farms Inc., about 2 miles north-east of Marysville. 30 Comment
  CHSC97658  Alopecurus saccatus Lowell Ahart 2007-5-12 13821 Yuba Bottom of a vernal pool, about 100 feet northeast of a culvert, about 80 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCD32893  Alopecurus saccatus Beecher Crampton 1965-5-11 7324 Yuba Yuba County, 2.5 miles S.W. Brown Valley. Comment
  CHSC81745  Amaranthus californicus Lowell Ahart 2001-11-2 9396 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  JEPS102606  Amaranthus californicus Lowell Ahart 2001-11-2 9396 Yuba Camp Far West Reservoir, about 1/4 mile NE of the dam, about 9 miles (air) SE of Wheatland. 83 Comment
  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
  RSA726802  Amaranthus hybridus L. Ahart 2007-6-30 14239 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  HSC4372  Amaranthus hybridus T. F. Newman 1965-10-9 6550 Yuba Carnes Ranch, 10 mi. N of Marysville Comment
  CDA10055  Ambrosia psilostachya L. Ahart 2002-10-1 9976 Yuba On the west side of the dirt road, east of the upper part of Englebright Reservoir on the Yuba River, along Rice s Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20. Comment
  CHSC81746  Ambrosia psilostachya Lowell Ahart 2001-11-2 9410 Yuba Camp Far West Reservoir, about 1/8 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 91 Comment
  CHSC83019  Ambrosia psilostachya Lowell Ahart 2002-10-10 9976 Yuba On the west side of the dirt road, east of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20. 166 Comment
  JEPS102572  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
  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
  CHSC116310  Ammannia coccinea Lowell Ahart 2015-11-19 20684 Yuba 100 yards or more north of the spillway area, below the high water line, west side of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  JEPS95915  Ammannia coccinea Lowell Ahart 1999-9-17 8244 Yuba south of Woodruff Lane; just east of Mathews Road; east of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  UCD37868  Amsinckia Beecher Crampton 1962-4-24 6284 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  SEINET12479904  Amsinckia intermedia A. Tiehm 1975-1 648 Yuba U.C. Sierra Foothill Field station. 274 Comment
  SEINET13276745 Image available Amsinckia intermedia George K. Helmkamp 2014-1 22757 Yuba Sierra Nevada Foothills: Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville (Smartsville 7.5' Q.) 264 Comment
  UC1178255  Amsinckia intermedia Francia Chisaki with R. Bacigalupi and G. T. Robbins 1956-4-19 685 Yuba near Honcut Creek (above Stanfield Hill) Comment
  UCD119710  Amsinckia intermedia Barbara Yungert 1974-4-4 1 Yuba Along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  CHSC96463  Amsinckia menziesii Lowell Ahart 2007-4-17 13692 Yuba On the north side of the poor dirt fireguard, about 50 yards northwest of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  UCD81496  Amsinckia menziesii Christopher Michael Bronny 2009-4-1 8 Yuba Oat Hills' area of Sierra Nevada foothills. 194 Comment
  JEPS113094  Amsinckia menziesii var. menziesii Lowell Ahart 2007-4-17 13692 Yuba On the north side of the poor dirt fireguard, about 50 yards northwest of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  RSA0089945  Amsinckia menziesii var. menziesii L. 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 5.5 miles (air) northeast of Loma Rica. 293 Comment
  CHSC97225  Anagallis arvensis Lowell Ahart 2007-6-22 14221 Yuba Near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC97636  Anagallis arvensis Lowell Ahart 2007-5-14 13850 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS113619  Anagallis arvensis Lowell Ahart 2007-5-14 13850 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  UCD117557  Anagallis arvensis Barbara Yungert 1974-4-25 88 Yuba SC-14 project area, Sierra Foothill Field Station. Comment
  CDA39674  Anagallis minima J. T. Howell & Gordon H. True 1967-6-13 3559 Yuba Camp Far West Reservoir on Bear River, east of Wheatland. Comment
  RSA10978  Andropogon glomeratus C. B. Wolf 1927-11-5 1436 Yuba Roadside swale, 8 mi. from Marysville on road to Browns Valley. Comment
  CDA31475  Andropogon virginicus H. Crane 1931-4-3 Yuba 0 Comment
  HSC8924  Andropogon virginicus T. F. Newman 1964-2-22 9 Yuba 10 miles N of Marysville on Alt. 40, Rameriz Rd. Comment
  UCD56093  Andropogon virginicus R. M. Love 1952-10-31 s.n. Yuba 13 miles east of Marysville. Comment
  UCD56098  Andropogon virginicus R. N. Raynor 1938-4-25 s.n. Yuba near Marysville. Comment
  CAS-BOT-BC137784  Andropogon virginicus var. virginicus William Anderson 1966-11-25 s.n. Yuba Sierra Nevada. Loma Rica. 121 Comment
  CDA42983  Andropogon virginicus var. virginicus L. Ahart 2013-11-3 19307 Yuba On north side of Dry Creek, below the high water line of Collins Lake, about 300 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. Comment
  JEPS124317  Andropogon virginicus var. virginicus Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20643 Yuba Above the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CHSC10805  Anemone oregana Lowell Ahart 1970-5-7 Yuba Along Deadwood Creek, near Challenge. 914 Comment
  CHSC117754  Anemone oregana var. oregana L. P. Janeway; Chelsea Kieffer, Emily Doe, Nicholas Doornbos 2016-5-4 11942 Yuba Northern High Sierra Nevada. Plumas National Forest; along La Porte Road 3.5 road-km northeast of Strawberry Guard Station. 1259 Comment
  SEINET5717834 Image available Anemone quinquefolia Andrea Smith 1972-1 7 Yuba Along Brandy Creek near the Pendola Ranch, about 5 miles west of Camptonville.; Camptonville 610 Comment
  CHSC84145  Anisocarpus madioides Lowell Ahart 2003-7-2 10343 Yuba About 200 yards south of the 4-H Camp, on the west side of Oregon Hill Road, about 1/2 mile north of Marysville Road, about 2 miles (air) northeast of Dobbins. 815 Comment
  CHSC70780  Antennaria argentea B. Castro; L. Gehrung 1995-6-2 573 Yuba Ca 2 air mi SE of Strawberry Valley, 0.5 to 0.8 mi N of the N Fork Yuba River, on S-trending ridge to Weed Point. Along both sides of USFS Rd 20N81. 1021 Comment
  CHSC108205  Anthemis cotula Lowell Ahart 2011-6-7 17373 Yuba Bottom of a depression at the base of cliffs, to the north is a huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC97236  Anthemis cotula Lowell Ahart 2007-6-22 14224 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
  JEPS87730  Anthoxanthum odoratum Lowell Ahart 1994-6-27 7391 Yuba about 4 mi ne of Strawberry Valley (near s side of Schwartz Meadow, on e side of La Porte Road); Schwartz Meadow, La Porte Road 1219 Comment
  CHSC96490  Anthriscus caucalis Lowell Ahart 2007-4-17 13679 Yuba East of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  JEPS113288  Anthriscus caucalis Lowell Ahart 2007-4-17 13679 Yuba East of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  JEPS118314  Anthriscus caucalis Lowell Ahart 2011-6-7 17369 Yuba Just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CHSC106050  Apocynum androsaemifolium Lowell Ahart 2010-7-27 16922 Yuba Disturbed area of a log landing, about 100 yards north of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. 1219 Comment
  JEPS117429  Apocynum androsaemifolium Lowell Ahart 2010-7-27 16922 Yuba Disturbed area of a log landing, about 100 yards north of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam 1219 Comment
  RSA795330  Apocynum androsaemifolium L. Ahart 2010-7-27 16922 Yuba Disturbed area of a log landing, about 100 yards north of Scales Road, about 1/8 miles east of La Porte Quincy Road, about 3 air miles east of Sly Creek Reservoir Dam. 1220 Comment
  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
  CAS-BOT-BC171648  Aralia californica Lowell Ahart 1980-7-25 2483 Yuba Near Slate Creek, Sierra Nevada 1200 Comment
  CAS-BOT-BC128687  Arbutus menziesii Alice Eastwood 1918-4-7 6799 Yuba Camptonville Comment
  CAS-BOT-BC128688  Arbutus menziesii Alice Eastwood 1918-4-7 6800 Yuba Camptonville Comment
  SD236272  Arbutus menziesii David Charlton 2005-5-16 8021 Yuba Sacramento Valley: Yuba Gold Field; just S of Yuba River; ca 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area ca. 2 mi by 1 mi. (Browns Valley 7.5'Q) 25 Comment
  UCD117487  Arbutus menziesii G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12838 Yuba Northern Sierra Nevada Mountains: Along Hwy CA-49, 0.5 mile south of Camptonville. 817 Comment
  UCR168799  Arbutus menziesii David Charlton 2005-5-16 8021 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  UCR189625  Arbutus menziesii George K. Helmkamp, E. A. Helmkamp 2007-8-29 12838 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 Comment
  RSA96077  Arbutus menziesii P. C. Everett, E. K. Balls 1954-10-8 20247 Yuba Hwy. 49, Nevada City to Downieville, 3.4 mi. NE of Nevada-Yuba Co. line. 762 Comment
  UCD52283  Arctostaphylos mewukka B. F. Smith 1968-9-20 89 Yuba Gochette Ranch; 3 miles east of Challenge. 883 Comment
  CAS-BOT-BC46712  Arctostaphylos patula Alice Eastwood 1918-4-7 6797 Yuba Camptonville. Comment
  UCD52570  Arctostaphylos viscida B. F. Smith 1968-9-20 90 Yuba Gochette Ranch, 3 miles east of Challenge, Yuba County, California. 883 Comment
  UCD52572  Arctostaphylos viscida Kathleen Keliher 1975-5-6 89 Yuba Along Forbestown Road, one mile east of Woodleaf, Yuba County, California. 929 Comment
  CAS-BOT-BC48244  Arctostaphylos viscida subsp. viscida L. S. Rose 1931-4-13 s.n. Yuba Woodleaf Comment
  CAS-BOT-BC48245  Arctostaphylos viscida subsp. viscida Junea Kelley 1920-4-24 s.n. Yuba Los Vergils Comment
  CAS-BOT-BC48247  Arctostaphylos viscida subsp. viscida Alice Eastwood 1921-5-22 10599 Yuba Los Vergils Comment
  JEPS95028  Aristida oligantha Lowell Ahart 1997-8-7 7808 Yuba about 1 mi n of Brownsville (on n side of New York Flat Road, about 1 mi nw of La Porte Road); New York Flat Road 731 Comment
  UCD56441  Aristida oligantha Beecher Crampton 1957-6-5 4123 Yuba 10 miles E of Marysville. Along State Hwy. 20. Comment
  LA76973  Aristolochia californica C. B. Adams; 1930-10-13 1741 Yuba Small creek flowing into Yuba River on Browns Valley to Smartsville Road 152 Comment
  CAS-BOT-BC400416  Aristolochia californica Carl B. Wolf 1930-10-13 1741 Yuba Creek flowing into Yuba River on Brown's Valley to Smartsville Road 152 Comment
  CDA24668  Armoracia rusticana A. Worledge 1944-1 Yuba 0 Comment
  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
  JEPS87727  Arrhenatherum elatius Lowell Ahart 1994-6-27 7392 Yuba about 4 mi ne of Strawberry Valley (nw side of Schwartz Meadow, e side of La Porte Road); Schwartz Meadow, La Porte Road 1219 Comment
  UC1119535  Artemisia douglasiana N. French 1933-6-22 82 Yuba 2 mi w Dobbin; Smartsville Quadrangle Comment
  UCD129287  Artemisia douglasiana G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12830 Yuba Northern Sierra Nevada Mountains: Mountain House Road 0.6 mile west of the Sierra County line. Sleighville area beside Willow Creek. 1021 Comment
  UCR194899  Asclepias fascicularis George K. Helmkamp, E. A. Helmkamp 2007-5-26 12139 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, just north of the Nevada Co. line; beside Oregon Creek and Oregon Creek campground 430 Comment
  CHSC46023  Aspidotis densa Lowell Ahart 1980-8-12 2529 Yuba About 2 miles south-east of Woodleaf. 731 Comment
  CAS-BOT-BC65898  Aspidotis densa W. R. Dudley s.n. Yuba Near South Yuba Comment
  UCR191124  Aster oregonensis George K. Helmkamp, E. A. Helmkamp 2007-8-29 12831 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 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
  CHSC69136  Asyneuma prenanthoides Lowell Ahart 1997-8-7 7816 Yuba Near a branch of Little Oregon Creek, on the west side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  JEPS113777  Athyrium filix-femina subsp. cyclosorum Lowell Ahart 2007-8-7 14410 Yuba Hampshire Creek Meadow, about 80 yards east of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  CHSC97122  Athyrium filix-femina var. cyclosorum Lowell Ahart 2007-8-7 14410 Yuba Hampshire Creek Meadow, about 80 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  SEINET7075556  Athysanus pusillus A. G. Vestal 1955-4-4 s.n. Yuba About 9 miles northeast of Marysville on Route 20. 39? deg. 13' 38" North Latitude, -121? deg. 24' 51" West Longitude. UTM Zone 10, 636890mE, 4342994mN. (NAD 27)]. [Coordinate Datum: WGS84/NAD83]. Comment
  UCD114254  Athysanus pusillus Barbara Yungert 1974-4-16 44 Yuba Campbell Valley, Sierra Foothill Field Station. Comment
  SEINET5336146  Avena fatua C. Aarstad 1979-4-28 s.n. Yuba at junct. of Rt. 20 and N fork of Yuba in Browns Valley 183 Comment
  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
  UCD147077  Baccharis salicifolia subsp. salicifolia Chuck Hughes 2013-4-1 362 Yuba Eastern margin of Camp Far West Reservoir. 96 Comment
  UCD123527  Bacopa rotundifolia C. F. Dunshee 1925-1 s.n. Yuba Sacramento Valley. Comment
  CHSC87349  Berberis aquifolium var. dictyota Lowell Ahart 2004-4-27 10770 Yuba About 20 yards north of a drainage, about 50 yards east of the road, about 1/2 mile (air) southeast of Woodleaf. 931 Comment
  CHSC76267  Bidens frondosa Lowell Ahart 1999-9-17 8235 Yuba On the south side of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  RSA726441  Bidens frondosa L. Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14497 Yuba About 1 mile (air) east of Clipper Mills. 1016 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
  UCD33668  Brachypodium distachyon Beecher Crampton 1971-6-18 8741 Yuba Yuba County, Sierra Foothill Range Field Station, ca. 6.5 miles east of Browns Valley, east of headquarters. Comment
  UCD56999  Brachypodium distachyon Beecher Crampton 1971-6-18 8741 Yuba Sierra Foothill Range Field Station. Ca. 6.5 miles E of Browns Valley. Comment
  UCD57012  Brachypodium distachyon Beecher Crampton 1957-6-5 4121 Yuba 10 miles E of Marysville. Along State Hwy. 20. 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
  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
  CHSC107150  Briza minor L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10373 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants common throughout the meadow. 750 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
  RSA726568  Briza minor L. Ahart 2007-5-12 13822 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  SEINET4344868  Briza minor A. Tiehm 1975-1 644 Yuba U.C. Sierra Foothill Field station 274 Comment
  SEINET7067145  Briza minor A. G. Vestal 1947-4-30 s.n. Yuba About 5.1 miles west of Smartville. Coordinate datum: NAD27. UTM Zone 10, 641421mE, 4340515mN. Comment
  UCD57408  Briza minor Beecher Crampton 1962-4-24 6300 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  SEINET7042651  Briza minor A. G. Vestal 1963-5-30 s.n. Yuba Weedy depression near Dry Creek and north oh Sicard Flat. Smartville quadrangle UTM Zone 10, 642203mE, 4345148mN. Comment
  UCD139146  Brodiaea R. E. Preston 1996-5-22 936 Yuba Beale Air Force Base. 30 Comment
  UCD149961  Brodiaea californica William Anderson 1965-5-16 s.n. Yuba Loma Rica. Comment
  SEINET11265355  Brodiaea coronaria Craig C. Freeman, Mark A. Wetter 1983-5-22 1892 Yuba CA 20, 11.2 mi E of the Sutter County line.; 0 Comment
  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
Read comments Jun 17 2014
  UCR169011  Brodiaea elegans David Charlton 2005-5-16 8003 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  SEINET7042657  Brodiaea elegans A. G. Vestal 1963-5-30 s.n. Yuba Sicard Flat Road at Route 20. Smartville quadrangle UTM Zone 10, 642569mE, 4343212mN. Comment
  UCD77171  Brodiaea elegans subsp. elegans Robert E. Preston 2004-6-12 2257 Yuba 1.6 mi SW of Camptonville, along Marysville Rd, 0.2 mi W of its jct with Hwy 49 762 Comment
  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
  SD240787  Brodiaea minor George K. Helmkamp, E. A. Helmkamp 2011-5-6 17198 Yuba East of Sacramento Valley: Camp Far West Road, 2.3 miles northwest of the junction at Camp Far West Reservoir, 5.3 miles NE (53a^z) of Wheatland (Camp Far West 7.5'Q) 54 Comment
  UCD77168  Brodiaea minor Robert E. Preston 2004-6-12 2259 Yuba 2.9 mi W of Dobbins, along Frenchtown Rd, 2.2 mi N of its jct with Marysville Rd 445 Comment
  UCR231314  Brodiaea minor George K. Helmkamp, E. A. Helmkamp 2011-5-6 17198 Yuba East edge of Sacramento Valley, Camp Far West Road, 2.3 miles northwest of the junction at Camp Far West Reservoir, 5.3 miles NE (53 deg. ) of Wheatland 55 Comment
  JEPS13878  Brodiaea minor Rimo Bacigalupi with L. R. Heckard, Ruth Sanderson and Geo. Bacigalupi 1952-6-20 3759 Yuba edges of desiccated roadside pool just n Washington Mill (along road from Brownsville to Oregon House, 1.5 mi due s of Brownsville) 609 Comment
  UCD77190  Brodiaea nana Robert E. Preston 2004-4-25 2227 Yuba Ca. 6.5 mi NE of Wheatland, along Camp Far West Rd. 99 Comment
  UCD139151  Brodiaea nana Louis K. Mann 1957-4-21 s.n. Yuba beside State Highway 20, around 3 miles northeast of Marysville. Comment
  CHSC112957  Brodiaea sierrae L. P. Janeway 2014-6-26 11422 Yuba Northern High Sierra Nevada. Plumas National Forest; small ephemeral meadow on a flattish bench at head of ephemeral northeastern tributary to Little Oregon Creek; 1.9 air km south-southeast of Pike County Peak; 0.24 km northeast of Oregon Hill Road, 0.15 km south of Peterson Ridge Road. 852 Comment
  CHSC112959  Brodiaea sierrae L. P. Janeway 2014-7-2 11437 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.6 air-km east of Challenge, along Road 19N03 1.3 road mi north of its crossing of Indian Creek, on slopes just east of the creek. 834 Comment
  CHSC69158  Brodiaea sierrae Lowell Ahart 1997-8-7 7826 Yuba On the west side of the dirt road, near a unnamed stream, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  CHSC71464  Brodiaea sierrae Lowell Ahart 1998-7-19 8050 Yuba On dry rocky serpentine soil, on the north side of the dirt road, about 3/4 mile southeast of Woodleaf. 960 Comment
Read comments Jan 29 2013
  JEPS94517  Brodiaea sierrae Lowell Ahart 1997-8-7 7826 Yuba about 3 air mi se of Challenge (on w side of the dirt road, near an unnamed stream, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  UC1133869  Brodiaea sierrae M. A. Elvin 1933-7-8 46 Yuba 1/2 mi s Indiana Ranch; Smartsville Quadrangle 579 Comment
  SEINET7067128  Brodiaea stellaris A. G. Vestal 1947-4-29 s.n. Yuba About 5 miles west of Smartville on the Smartville Road. Coordinate datum: NAD27. UTM Zone 10, 640771mE, 4339031mN. Comment
Read comments Jul 17 2018
  UCD58309  Bromus carinatus Beecher Crampton 1962-4-24 6298 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. 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
  CAS-BOT-BC148846  Bromus carinatus var. marginatus Lowell Ahart 1982-7-4 3661 Yuba Sierra Nevada. About 0.5 mile east of Brownsville, along La Porte Road. 700 Comment
  HSC9153  Bromus catharticus T. F. Newman 1965-10-9 6553 Yuba Carnes Ranch, 10 mi. N of Marysville Comment
  CDA14560  Bromus ciliatus G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3037 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  RSA0107419  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
  UCD58541  Bromus diandrus Beecher Crampton 1962-4-17 6171 Yuba Ca. 2 miles south of Marysville. Island Road and State Hwy. 24. Comment
  UCD59483  Bromus diandrus Beecher Crampton 1962-4-24 6246 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCR257161  Bromus diandrus George K. Helmkamp 2014-4-17 22770 Yuba Sierra Nevada Foothills, Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville 264 Comment
  CAS-BOT-BC155483  Bromus hordeaceus Gordon H. True 1968-5-6 4230 Yuba Near Gales Orchard ca. 6 miles east of Camptonville. 1249 Comment
  CHSC97463  Bromus hordeaceus Lowell Ahart 2007-5-12 13823 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCD58673  Bromus hordeaceus Barbara Yungert 1974-5-1 G- 2 Yuba Along SC-12 fence, southeastern bend in road, SC-14 project area. Sierra Foothill Field Station. Comment
  UCR231331  Bromus hordeaceus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17186 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.3 mile north of the junction with Hokan Lane, vicinity of Camp Far West Reservoir 105 Comment
  UCR258234  Bromus hordeaceus George K. Helmkamp, Amy Barnes 2013-3-28 20249 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  SEINET4391209  Bromus hordeaceus A. Tiehm 1975-4-25 633 B Yuba U.C. Sierra Foothill Field Station 198 Comment
  SEINET4391216  Bromus hordeaceus C. Aarstad 1979-4-28 s.n. Yuba At junct of Rt. 20 and N fork of Yuba in Browns Valley 183 Comment
  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
  UCD58999  Bromus madritensis Beecher Crampton 1962-4-24 6270 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCD59028  Bromus madritensis Beecher Crampton 1957-6-5 4140 Yuba 1 mile east of Stanfield Hill. Comment
  SEINET3450783  Bromus orcuttianus Unknown 2003-7-2 10340 Yuba Dobbins, Dobbins, about 2 air miles north, about 200 yards south of the 4-H Camp on the west side of Oregon Hill Road, about 0.5 miles north of Marysville Road Comment
  UCD59582  Bromus rubens J. Hardison 1989-5-23 142 Yuba Sierra Field Station. Comment
  UCR152062  Bromus sterilis Beecher Crampton 1954-5-10 1846 Yuba Central Sierra Nevada foothills, 6 miles south of Camptonville, along Hwy. 49 457 Comment
  UCD60220  Bromus tectorum Beecher Crampton 1954-5-10 1843 Yuba North slope of the Middle Yuba River, along Hwy. 49, 7 miles south of Camptonville. 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
  RSA795535  Calandrinia ciliata L. Ahart 2011-6-7 17409 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 air miles northeast of Marysville. 66 Comment
  UCR231317  Calandrinia ciliata George K. Helmkamp, E. A. Helmkamp 2011-5-6 17195 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.9 mile west of the junction at Camp Far West Reservoir 65 Comment
  CHSC96476  Callitriche heterophylla var. bolanderi Lowell Ahart 2007-4-17 13684 Yuba In shallow water of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  JEPS113287  Callitriche heterophylla var. bolanderi Lowell Ahart 2007-4-17 13684 Yuba In shallow water of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  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
  JEPS32892  Callitriche longipedunculata A. A. Heller 1905-3-21 7561 Yuba At Marysville 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
  CHSC3656  Calochortus albus Robert D. Briggs 1966-4-6 R- 113 Yuba One mile east of Smartsville, on hwy. #20. Comment
  UCD37888  Calochortus albus Beecher Crampton 1962-4-24 6314 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CAS-BOT-BC487483  Calochortus albus Alice Eastwood 1921-5-22 10558 Yuba Los Vergils Comment
  SEINET8194169  Calochortus albus R. T. Short 1959-4-11 s.n. Yuba 5 miles W of Smartsville, on CA Hwy 20. 366 Comment
  UCD139465  Calochortus albus Barbara Yungert 1974-4-12 20 Yuba along north bank of four wheel drive road. North of Yuba River, Sierra Foothill Field Station. Comment
  CAS-BOT-BC487812  Calochortus coeruleus L. S. Smith 1931-5-1 s.n. Yuba Near Camptonville, Rebel Ridge 548 Comment
  SEINET7067129  Calochortus luteus 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
  SEINET7072987  Calochortus luteus A. G. Vestal 1963-5-30 s.n. Yuba Dry Creek at junction with Peoria Road north of Sicard. Coordinate datum WGS84/NAD83. (39? deg. 14' 2" North Latitude, -121? deg. 20' 47" West Longitude. UTM Zone 10, 642723mE, 4343827mN. Coordinate datum: NAD27). Comment
  CAS-BOT-BC483432  Calochortus luteus Lillian S. Mott 1965-4-21 LM 6549 Yuba Highway 20 to Marysville 518 Comment
  CAS-BOT-BC483433  Calochortus luteus Lewis S. Rose 1940-5-28 40401 Yuba Oregon House 457 Comment
  SEINET8197375  Calochortus luteus C. Aarstad 1979-4-28 s.n. Yuba Junction of Rte 20 and North Fork of Yuba River in Browns Valley. 183 Comment
  UCD39214  Calochortus luteus Beecher Crampton 1968-5-6 8257 Yuba Ca. 4 miles east of Brown's Valley. Comment
  CHSC112846  Calochortus monophyllus L. P. Janeway 2014-4-15 11225 Yuba Northern High Sierra Nevada. Plumas National Forest; about halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River), near Road 18N01A close to its lower end. 860 Comment
  CHSC32088  Calochortus monophyllus L. Ahart 1973-5-6 212 Yuba Near Challenge. 762 Comment
  CHSC32089  Calochortus monophyllus L. Ahart 1976-4-15 1075 Yuba Near edge of rd to Brownsville Dump, Brownsville. 457 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
  UC477577  Calochortus monophyllus L. S. Smith May 1931 Yuba Camptonville Dist. Tahoe National Forest Comment
  CAS-BOT-BC493110  Calochortus monophyllus Peter H. Raven 1953-5-9 5470 Yuba 1 mile from Brownsville on road to Challenge Comment
  RSA232243  Calochortus monophyllus James Henrickson 1969-5-25 3448 Yuba Ca. 60 miles northeast of Yuba City, 1 mile west of Sierra County line along Highway 49 Comment
  SEINET12044652  Calochortus monophyllus L. S. Rose 1933-1 33196 Yuba Brownsville 640 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
  CHSC67732  Calochortus superbus James D. Jokerst 1979-5-31 258 Yuba Marysville Rd. SW of Bullards Bar Reservoir, 3.9 mi NE of town of Oregon House. Comment
  JEPS28074  Calochortus superbus Rimo Bacigalupi and L. Heckard 1961-6-16 7829 Yuba 0.2 mi. w. of Hwy. 49 on rd. to Bullard Bar Dam and Dobbins (Tahoe Nat'l Forest); Tahoe Nat'l Forest 762 Comment
  SEINET7072989  Calochortus venustus A. G. Vestal 1963-5-30 s.n. Yuba About 5.3 miles north of Dry Creek [on the Peoria Road]. Coordinate datum WGS84/NAD83. (39? deg. 18' 9" North Latitude, -121? deg. 22' 33" West Longitude. UTM Zone 10, 640009mE, 4353245mN. Coordinate datum: NAD27). Comment
  SEINET8197775  Calochortus venustus D. Savage 1963-6-8 s.n. Yuba W slope of Sierra's near Marysville. 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
  CHSC78233  Calycadenia multiglandulosa Lowell Ahart 2000-7-13 8581 Yuba On the south side of Ridge Road, about 1/4 mile west of Our House, about 2 miles (air) east of Celestial Valley, about 2 1/2 miles (air) southeast of Camptonville. 975 Comment
  JEPS94947  Calycadenia multiglandulosa Lowell Ahart 1997-8-7 7805 Yuba 1 mi n of Brownsville (on n side of New York Flat Road about 1 mi nw of La Porte Road); New York Flat Road 731 Comment
  CAS-BOT-BC270731  Calycadenia multiglandulosa David D. Keck 1932-7-1 1610 Yuba 2 miles E of Dobbins, Stanfield Hill 762 Comment
  CAS-BOT-BC270733  Calycadenia multiglandulosa David D. Keck 1932-7-1 1610 Yuba 2 miles E of Dobbins, Stanfield Hill 762 Comment
  UC1876156  Calycadenia multiglandulosa Gerald D. Carr 1971-8-15 632 Yuba 0.6 mi N of Oregon House Post Office on road to Brownsville. Comment
  UC1876172  Calycadenia multiglandulosa Gerald D. Carr 1971-5-23 554 Yuba 0.6 mi N of Oregon House Post Office on road to Brownsville. Comment
  UCD129818  Calycadenia multiglandulosa Barbara Yungert 1974-5-15 159 Yuba aaround 200 yards from Dry Creek, Lower Lewis project area, Sierra Foothill Field Station. Comment
  RSA255478  Calycadenia multiglandulosa subsp. bicolor Gerald D. Carr 1971-8-15 632 Yuba 0.6 miles north of Oregon House Post Office on road to Brownsville 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
  CHSC83020  Calycadenia truncata Lowell Ahart 2002-10-10 9977 Yuba On the east side of the dirt road, east of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20. 166 Comment
  SFV18641  Calycanthus occidentalis J. D. Dilley 2000-9-16 397 Yuba Sierra Nevada Oregon Creek picnic area on Highway 49, 18 miles north of Nevada City. 445 Comment
  UCD137935  Calycanthus occidentalis Barbara Yungert 1974-5-20 166 Yuba along Porter Creek south of station headquarters, Sierra Foothill Field Station. Comment
  UCD82844  Calycanthus occidentalis Robin McMaster 1973-6-24 496 Yuba Oregon Creek Campground. Comment
  JEPS104133  Calyptridium monospermum Lowell Ahart 2003-10-29 10685 Yuba On the south side of Lost Creek, below the high water line of Sly Creek Reservoir, ca 400 yd sw of the Day Camp, Sly Creek Reservoir. 1072 Comment
  UC852134  Calyptridium monospermum Lewis S. Rose 1939-6-6 39230 Yuba 2 mi ne of Clipper Mills 1173 Comment
  JEPS95508  Calystegia occidentalis subsp. occidentalis Lowell Ahart 1994-6-27 8000 Yuba 4 mi NE of Strawberry Valley (along the N side of a small stream, E bank of the logging road, E of Schwartz Meadow, on the E side of La Porte Road) 1219 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
  CHSC116181  Camassia howellii Lowell Ahart 2015-6-16 20244 Yuba In a small meadow, near water ditch, about 100 yards south of the poor dirt road, about 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. 829 Comment
  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
  CDA14564  Campanula prenanthoides G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3043 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  CHSC90466  Cardamine oligosperma Lowell Ahart 2005-3-11 11600 Yuba On the west side of a large rock outcrop, just east of the poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 386 Comment
  JEPS107347  Cardamine oligosperma Lowell Ahart 2005-3-11 11600 Yuba On W side of large rock outcrop, just E of the poor dirt road, ca. 1/2 mi W of Marysville Rd, ca. 1/2 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/2 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 386 Comment
  RSA715480  Cardamine oligosperma L. Ahart 2005-3-11 11600 Yuba West of a large rock outcrop, about 1/2 mile W of Marysville Road, about 1/2 mile N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile N of Loma Rica Road, about 5 miles (air) NE of Loma Rica. 386 Comment
  UCD80177  Cardamine oligosperma CNPS SN Foothill Team 2005-3-15 SNFN 0015 Yuba CDFG Spenceville Wildlife Area. The plot is accessed from Spenceville Road, approximately 1 mile east of intersection with Waldo Rd. and approximately 0.1 mile east of intersection with Jones Rd. 100 Comment
  CDA3661  Cardaria chalepensis T. C. Fuller 1961-5-31 6269 Yuba In Bear River drainage at El Centro Road bridge, 0.5 mile north of Rio Oso. 0 Comment
  CHSC108181  Carduus pycnocephalus Lowell Ahart 2011-6-7 17374 Yuba Grassy road margin, about 50 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCD85583  Carduus pycnocephalus Kathleen Keliher 1975-5-31 125 Yuba Sierra Foothill Field Station, H-2 project area. Comment
  JEPS98356  Carduus pycnocephalus subsp. pycnocephalus Lowell Ahart 2000-5-25 8402 Yuba 6 air miles S of Smartville (a north branch of Dry Creek, 100 yds W of Smartville Road, about 2 mi N of intersection of Waldo Road and Smartville Road) 146 Comment
  SEINET13327107  Carex angustata L. Ahart 2010-7-27 16917 Yuba Notrh side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam 1219 Comment
  UCD80245  Carex angustata CNPS SN Foothill Team 2005-3-16 SNFN 0017 a Yuba 187 Comment
  UCR118909  Carex aquatilis Beecher Crampton 1962-4-24 6289 Yuba Central Sierra Nevada foothills, University of California Foothill Field Station, 5 miles east of Brown's Valley, 2.5 miles NNW of Smartville 366 Comment
  CHSC105844  Carex aurea Lowell Ahart 2010-7-27 16915 Yuba Meadow on the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. 1219 Comment
  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
  CHSC97201  Carex cyrtostachya Lowell Ahart 2007-8-7 14419 Yuba Along a small stream, about 100 yards northwest of the dirt road, north part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills. 1021 Comment
  HSC103662  Carex cyrtostachya L. P. Janeway, L. Ahart, Linnea Hanson 2007-7-13 9116 Yuba Northern High Sierra Nevada. Plumas National Forest; Hampshire Creek meadow, 1.5 air km. E of Clipper Mills and 1.8 air km. NW of North Yuba River 1026 Comment
  UCD168923  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
  UCD80255  Carex densa CNPS SN Foothill Team 2005-3-17 SNFN 0041 Yuba CDFG Spenceville Wildlife Area. The seep is upslope to the SW of Jones Road, less than 100 m from gate at intersection with Spenceville Road. 100 Comment
  CHSC63192  Carex echinata subsp. echinata Lowell Ahart 1994-6-27 7385 Yuba Meadow, north of the dirt road that goes from La Porte Road to the Poverty Hill Mine (County Road), east of Schwartz Meadow, about 4 miles north-east of Strawberry Valley. 1219 Comment
  CHSC78275  Carex echinata subsp. echinata Lowell Ahart 2000-6-23 8508 Yuba Bog in a small meadow, about 200 yards east of the meadow along La Porte Road, about 50 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  JEPS104627  Carex echinata subsp. echinata Lowell Ahart 2000-6-23 8508 Yuba Bog in a small meadow, about 200 yards east of the meadow along La Porte Road, about 50 yards north of Scales Road, about 3 miles NE of Strawberry Valley. 1219 Comment
  JEPS113711  Carex echinata subsp. echinata Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14299 Yuba On the south side of Hampshire Creek, on the southeast side of a large wet meadow, about 80 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills 1021 Comment
  SEINET10588483  Carex echinata subsp. echinata Lowell Ahart 2000-6-23 Ahart 8508 Yuba T20N, R8E, northwest 1/4 Section 15. About 200 yards east of the meadow along La Porte Road, about 50 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  CAS-BOT-BC19989  Carex feta Barbara T. Keller 1975-6-10 1495 Yuba Challenge Experimental Forest on La Porte Road near Challenge. 762 Comment
  CAS-BOT-BC19990  Carex feta Beecher Crampton 1966-6-14 7753 Yuba 1 mile east of Brownsville, La Porte Road. Comment
  JEPS104244  Carex feta Lowell Ahart 2003-7-6 10361 Yuba In a meadow, east of the power line, about 60 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  SEINET11125895 Image available Carex feta Unknown 2010-1 24978 Yuba W side of Challenge Cutoff, 2.5 air km NE of Brownsville, Northern Sierra Nevada Highlands (n SNH) Comment
  SEINET13352664  Carex feta P. F. Zika, Peter F. Zika 2010-6-22 24978 Yuba W side of Challenge cut-off, 2.5 air km NE of Brownsville, northern Sierra Nevada Highland (n SNH) Comment
  UCD33110  Carex feta Beecher Crampton 1966-6-14 7753 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  SEINET4291980 Image available Carex feta A. L. Hipp, Clifton, G 1999-1 ah 385 Yuba Marysville Road Comment
  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
  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
  SEINET7560142 Image available Carex gracilior L. P. Janeway 2006-5-24 8631 Yuba Oregon House 7.5' Quad. Northern Sierra Nevada Foothills. South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. 483 Comment
  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
  JEPS121022  Carex hirtissima Peter F. Zika 2010-6-22 24979 Yuba W side of Challenge Cut-off, 2.5 air km NE of Brownsville Comment
  JEPS87677  Carex hirtissima Lowell Ahart 1994-6-5 7304 Yuba ca. 3 (air) mi e Forbestown (s side of creek, e side of Forbestown Rd.); Costa Creek 853 Comment
  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
  RSA769203  Carex hirtissima P. F. Zika 2010-6-22 24979 Yuba West side of Challenge Cut-off, 2.5 air km northeast of Brownsville, Northern Sierra Nevada Highlands 755 Comment
  JEPS113729  Carex laeviculmis Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14295 Yuba On the south side of Hampshire Creek, on the south side of a large wet meadow, about 80 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills 1021 Comment
  JEPS95438  Carex lemmonii Lowell Ahart 1994-6-5 7298 Yuba about 3 (air) miles E of Forbestown (Costa Creek, on the S side of Forbestown Road) 853 Comment
  UCD81490  Carex lenticularis Christopher Michael Bronny 2009-3-23 2 Yuba Lower Sierra Nevada foothills. Area near Loma Rica. Brown's Valley Irrigation Ditch. 152 Comment
  CAS-BOT-BC344997  Carex mendocinensis L. P. Janeway; Lowell Ahart; Linnea Hanson 2007-7-13 9116 Yuba Northern High Sierra Nevada. Plumas National Forest; Hampshire Creek meadow, 1.5 air km E of Clipper Mills and 1.8 air km NW of North Yuba River. 1026 Comment
  JEPS100270  Carex multicaulis Dean W. Taylor 2001-5-9 17643 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  CAS-BOT-BC32183  Carex multicaulis Lowell Ahart 1969-5-18 s.n. Yuba Slate Creek, 10 miles S of La Porte. 914 Comment
  CAS-BOT-BC117395  Carex senta Holiday Matchett 1965-5-1 80 Yuba 10 miles W of Strawberry Valley on Lost Creek. 609 Comment
  JEPS113713  Carex stipata var. stipata Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14298 Yuba On the south side of Hampshire Creek, on the southeast side of a large wet meadow, about 80 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills 1021 Comment
  UC1254610  Carex stipata var. stipata Beecher Crampton 1966-6-14 7758 Yuba 1 mi e Brownsville (La Porte Road) Comment
  CAS-BOT-BC116763  Carex subfusca John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54093 Yuba 3.6 mi NE of Strawberry Valley on La Porte-Quincy road. 1280 Comment
  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
  CDA43057  Carex xerophila L. P. Janeway 2006-5-24 8619 Yuba Northern High Sierra Nevada Foothils.; East side of Ponderosa Way 1.3 km north of La Porte Road and Brownsville. Comment
  CHSC102954  Carex xerophila L. P. Janeway 2006-5-24 8619 Yuba Northern High Sierra Nevada Foothils. East side of Ponderosa Way 1.3 km north of La Porte Road and Brownsville. 686 Comment
  CHSC115874  Carex xerophila Peter F. Zika; L. P. Janeway 2012-5-16 25871 Yuba Just e of junction of Jiggs Road and Ponderosa Way, 3 air km W of Ruff Hill, Brownsville. 715 Comment
  HSC103678  Carex xerophila L. P. Janeway 2006-5-24 8616 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way, 1.3 road km. SE of Robinson Mill Road; 1.3 air km. SE of Robinson Mills & Forbestown Road. 771 Comment
  HSC104265  Carex xerophila P. F. Zika, L. P. Janeway 2012-5-16 25871 Yuba Northern Sierra Nevada Foothill/Highlands boundary; Brownsville, 3 air mi. W of Ruff Hill, just east of junction of Jiggs Rd. and Ponderosa Way 715 Comment
  JEPS122427  Carex xerophila Peter F. Zika with L. P. Janeway 2012-5-16 25871 Yuba Just E of junction of Jiggs Road and Ponderosa Way, 3 air km W of Ruff Hill, Brownsville. Northern Sierra Nevada Foothill/Highlands boundary (n SNF/H) Comment
  RSA0056157  Carex xerophila L. P. Janeway 2006-5-24 8619 Yuba Northern Sierra Nevada Foothills. East side of Ponderosa Way 1.3 km north of La Porte Road & Brownsville. 686 Comment
  SD257103  Carex xerophila P. F. Zika, L. P. Janeway 2012-5-16 25871 Yuba Just E of junction of Jiggs Road and Ponderosa Way, 3.0 air km W of Ruff Hill, Brownsville. 715 Comment
  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
  UCD168843  Carex xerophila Peter. F. Zika; L. P. Janeway 2012-5-16 25871 Yuba Northern Sierra Nevada Foothill/Highlands boundary (n SNF/H). Just E of junction of Jiggs Road and Ponderosa Way, 3 air km W of Ruff Hill, Brownsville. 715 Comment
  UCD168922  Carex xerophila L. P. Janeway 2006-5-24 8626 Yuba Northern Sierra Nevada Foothills. Along Forsythe Road 2.7 road km south of New York House Road; above Prince Albert Creek. 604 Comment
  UCD23258  Castilleja applegatei W. R. Powell 1968-5-15 1498 Yuba 2 miles NE of Dobbins on Fountain House Road. 792 Comment
  UCD23259  Castilleja applegatei W. R. Powell 1968-5-15 1499 Yuba 2 miles NE of Dobbins on Fountain House Road. 792 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
  UCD122329  Castilleja attenuata W. R. Powell 1968-4-24 1475 Yuba Along Spring Valley Road, 1 1/2 miles northwest of Browns Valley. 106 Comment
  CHSC97645  Castilleja campestris subsp. campestris Lowell Ahart 2007-5-12 13816 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC107122  Castilleja lacera L. P. Janeway 2011-6-2 10357 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  SJSU11535  Castilleja lineariloba J. B. Willis Jr. 1969-4-19 Yuba 3 mi W of Smartville on Hammonton-Smartville Rd 182 Comment
  UCD122592  Castilleja lineariloba Barbara Yungert 1974-4-25 89 Yuba SC-14 project area, Sierra Foothill Field Station. Comment
  CHSC115311  Castilleja pruinosa Lowell Ahart 2015-4-30 20128 Yuba On both sides of the poor dirt road, about 3 miles (air) southeast of Challenge. 808 Comment
  CHSC43534  Castilleja pruinosa Lowell Ahart 1979-6-25 1948 Yuba About 2 miles east of Challenge. 670 Comment
  JEPS123870  Castilleja pruinosa Lowell Ahart 2015-4-30 20128 Yuba About 3 miles (air) southeast of Challenge. Comment
  JEPS123877  Castilleja pruinosa Lowell Ahart 2015-4-30 20135 Yuba About 2 1/4 miles (air) southwest of the Brownsville, about 2 miles (air) northeast of Rackerby. Comment
  SD147493  Castilleja pruinosa Lowell Ahart 1980-6-19 2411 Yuba 4 miles east of Challenge 900 Comment
  UCD123054  Castilleja rubicundula subsp. lithospermoides Barbara Yungert 1974-5-6 126 Yuba along Road 6, K 1-11 project area, Sierra Foothill Field Station. Comment
  CHSC63176  Castilleja tenuis Lowell Ahart 1994-6-27 7377 Yuba Near the south side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  UC1070953  Ceanothus cordulatus G. Burks 1933-8-1 18 Yuba 2 mi e Bullard's Bar Dam; Smartsville quad, Tahos National Forest 670 Comment
  UCD37863  Ceanothus cuneatus Beecher Crampton 1962-4-24 6275 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCR169015  Ceanothus cuneatus David Charlton 2005-5-16 8006 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  RSA17724  Ceanothus diversifolius Elmer I. Applegate 1934-5-2 8891 Yuba Indian Valley region Comment
  CAS-BOT-BC50706  Ceanothus integerrimus Elmer I. Applegate 1934-5-2 8894 Yuba Near Indian Valley, northern Yuba County Comment
  CAS-BOT-BC50709  Ceanothus integerrimus L. S. Smith 1939-4-19 2815 Yuba Near Camptonville 609 Comment
  CAS-BOT-BC50710  Ceanothus integerrimus Alice Eastwood 1921-5-22 10561 Yuba Los Vergils Comment
  UCD112007  Ceanothus integerrimus Barbara Yungert 1974-5-1 101 Yuba South of the road, SC-14 project area, Sierra Foothill Field Station. Comment
  SEINET12211866  Ceanothus integerrimus F. H. Utech 1990-6-5 90 -864 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  CDA14563  Ceanothus integerrimus var. macrothyrsus G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3040 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  CAS-BOT-BC50587  Ceanothus lemmonii John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54071 Yuba Sierra Nevada - 1/4 miles southwest of Bullards Bar Dam on road to Challenge 609 Comment
  CAS-BOT-BC50588  Ceanothus lemmonii Peter H. Raven 1953-5-9 5473 Yuba 1 mile from Brownsville on road to Challenge Comment
  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
  RSA712847  Ceanothus lemmonii L. P. Janeway 2006-5-24 8610 Yuba Northern Sierra Nevada Foothills, along Ponderosa Way 1 road Km SE of Robinson Mill Road, 1.2 air km SE of Robbinson Mills and Forebestown road 768 Comment
  SBBG4337  Ceanothus lemmonii H. and M. Dearing 1939-5-6 3286 Yuba W of Challenge 609 Comment
  UC1070795  Ceanothus lemmonii M. A. Elvin 1933-7-1 33 Yuba 1 1/2 mi S of Virginia Ranch Smartsville Quad. 457 Comment
  UC1281465  Ceanothus lemmonii H. E. McMinn 1946-5-11 5505 Yuba Along highway from Dobbins to Comptonville Comment
  UC634626  Ceanothus lemmonii H. L. Mason 1927-5-11 3723 Yuba near Dobbins 457 Comment
  UCD112171  Ceanothus lemmonii Kathleen Keliher 1974-5-13 102 Yuba Near Dry Creek, just above waterfalls, ca. one half mile from station boundry, Sierra Foothill Field Station. 182 Comment
  CAS-BOT-BC51993  Ceanothus prostratus Brighton C. Cain 1925-8-16 39 Yuba Wilson's Log Cabin at junction of road from Marysville and Nevada City to Downieville Comment
  UCD112656  Ceanothus prostratus Kathleen Keliher 1975-5-6 92 Yuba Along La Porte Road, 2 miles from Forbestown Road, Challenge. 914 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
  UCD130041  Centaurea melitensis Beecher Crampton 1971-6-18 8736 Yuba Sierra Foothill Range Field Station. Ca. 7 miles E of Browns Valley. 'Black Oak Pass' area. Comment
  JEPS113487  Centaurium muehlenbergii Lowell Ahart 2007-6-30 14228 Yuba Sides of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 29 Comment
  JEPS46985  Centaurium muehlenbergii H. M. Hall 1914-8-2 9834 Yuba Marysville Comment
  UC177583  Centaurium muehlenbergii H. M. Hall 1914-8-2 9834 Yuba near Marysville; Sacramento Valley 22 Comment
  UC878346  Centaurium muehlenbergii Alice Eastwood 1913-7-3 3411 Yuba Wheatland Comment
  RSA220016  Centaurium muehlenbergii G. H. True, J. T. Howell 1967-6-13 3571 Yuba Camp Far West Reservoir, Bear River east of Wheatland. 61 Comment
  RSA31869  Centaurium muehlenbergii A. A. Heller 1938-6-17 15163 Yuba Near the Yuba River five miles east of Marysville. 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
  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
  UC1069524  Centromadia fitchii M. A. Elvin 1933-6-7 21 Yuba 3 mi se O'Brien's Ranch; Smartsville Quad. 60 Comment
  CAS-BOT-BC288822  Centromadia fitchii Mrs. H. C. Cantelow 1940-5-13 3060 Yuba E of Marysville on road to Grass Valley Comment
  CHSC97659  Centunculus minimus Lowell Ahart 2007-5-12 13810 Yuba Bottom of a scraped area, about 30 feet west of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113633  Centunculus minimus Lowell Ahart 2007-5-12 13810 Yuba Bottom of a scraped area, about 30 feet west of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS125922  Cephalanthera austiniae D. W. Taylor 2001-6-19 17796 Yuba Ca 3 air miles SW of Union Hill, along Forest Road 20N35 tributary to Brush Creek near Diamond Ravine. Comment
  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
  RSA715478  Cerastium glomeratum L. Ahart 2005-3-11 11605 Yuba West of a large rock outcrop, about 1/2 mile W of Marysville Road, about 1/2 mile N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile N of Loma Rica Road, about 5 miles (air) NE of Loma Rica. 386 Comment
  UCD14963  Cerastium glomeratum Susan J. Schmickle 1977-4-16 2 Yuba California, Yuba Co.; at the UC Sierra Field Station, northwest off of Road 4; Comment
  UCD98085  Cerastium glomeratum Barbara Yungert 1974-5-3 112 Yuba K 1-11 project area; Sierra Foothill Field Station. Comment
  CAS-BOT-BC400180  Ceratophyllum demersum W. V. Middlekauff 1955-7-4 s.n. Yuba 3 miles n.w. of Rio Oso Post Office Comment
  CAS-BOT-BC207378  Cercis occidentalis Saichi Kawahara 1969-4-13 304 Yuba Park's Bar, Highway 29 at north bank Yuba River 91 Comment
  CAS-BOT-BC251515  Cercis occidentalis Camille F. Nowell 2012-7-15 46 Yuba Marysville Rd., approx 1 mi E of Dobbins. 586 Comment
  CHSC45964  Cercocarpus betuloides Lowell Ahart 1977-4-18 1314 Yuba Along Dry Creek, about 1 mile south of the Collins Lake Dam. 91 Comment
  CHSC11351  Chamaebatia foliolosa Lowell Ahart 1968-5-15 Yuba Near Bullards Bar Dam. 914 Comment
  SEINET7073622  Chamaebatia foliolosa A. G. Vestal 1955-5-21 s.n. Yuba About 17.8 miles east of Oroville on Forbestown Road. UTM Zone 10, 647812mE, 4376141mN. Coordinate datum: NAD27. Comment
  UCR206954  Chamaebatia foliolosa George K. Helmkamp, E. A. Helmkamp 2009-5-28 14826 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 Comment
  CHSC69139  Chamaesyce maculata Lowell Ahart 1997-8-7 7806 Yuba On the north side of New York Flat Road, about one mile northwest of La Porte Road, about 1 mile north of Brownsville. 731 Comment
  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
  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
  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
  JEPS98462  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2000-6-11 8467 Yuba 6 air miles S of Smartville (a north branch of Dry Creek, 100 yds W of Smartville Road, 2 mi N of int of Waldo Rd and Smartville Rd) 146 Comment
  SEINET11263898  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2002-10-9 9966 Yuba Below the high water line of Sly Creek Reservoir, about 1/8 mile SW of the Day Camp.; 0 1073 Comment
  SBBG128777  Chamaesyce serpillifolia subsp. serpillifolia L. Ahart 2013-11-30 19299 Yuba sides of a deep wash (Willow Glen Crk), NW of Dry Crk, below high water line of Collins Lake, ca. 100 yards N of Marysville Rd, ca. 2 1/2 mi W of Oregon House 356 Comment
  JEPS35374  Cheilanthes gracillima G. E. Davenport 1877-1 Yuba Comment
Read comments Jun 28 2010
  JEPS113488  Chenopodium album Lowell Ahart 2007-6-30 14238 Yuba East and west of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  JEPS103443  Chenopodium pumilio Lowell Ahart 2002-10-9 9954 Yuba Area E of a spring, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  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
  CHSC115915  Chlorogalum pomeridianum var. pomeridianum L. P. Janeway 2015-7-1 11797 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, one of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. 815 Comment
  CHSC81001  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
  CHSC81751  Chondrilla juncea Lowell Ahart 2001-11-2 9409 Yuba On the east side of Smartville Road, about 4 miles (air) south of Smartville. 175 Comment
  CHSC93154  Chondrilla juncea L. P. Janeway 1994-8-9 4725 Yuba Northern High Sierra Nevada. East side of Slate Creek about 3 mi northeast of Strawberry Valley; along Road 20N35 (road to Scales) 0.4 mi southeast of its bridge across Slate Creek. 1036 Comment
  RSA712897  Chondrilla juncea L. P. Janeway 1994-8-9 4725 Yuba Northern High Sierra Nevada, east side of Slate Creek about 3 miles NE of Strawberry Valley; along Road 20N35 (road to Scales) 0.4 mile southeast of its bridge across Slate Creek. 1037 Comment
  CAS-BOT-BC36351  Chrysolepis sempervirens Alice Eastwood 1918-4-7 6804 Yuba on Hills above North Fork & Yuba Rivers Comment
  OBI63079  Cirsium occidentale var. venustum R. K. Brummitt 1997-6-3 19641 Yuba Near jctn of Allegheny Rd and Rte 49, 4 km NE of N. San Juan 700 Comment
  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
  SEINET12196708  Clarkia gracilis F. H. Utech 1990-6-5 90 -863 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  LA206352  Clarkia gracilis subsp. gracilis H. Lewis; M. Lewis, M. R. Roberts 1951-5-19 820 Yuba 2.3 mi. E of Oregon House Comment
  CAS-BOT-BC172049  Clarkia gracilis subsp. gracilis Lowell Ahart 1981-6-13 2846 Yuba Near McGinn Hill, Loma Rica, Sierra Nevada 300 Comment
  CAS-BOT-BC163271  Clarkia mildrediae subsp. lutescens L. P. Janeway 1994-7-1 4674 Yuba West side of Slate Creek, 3 mi northeast of Strawberry Valley; along Road 10N35 0.1 mi south of the bridge across Slate Creek 1005 Comment
  CHSC89897  Clarkia mildrediae subsp. lutescens M. K. Hayden; Z. E. Diggory 2004-6-25 Yuba Northern High Sierra Nevada. Located at Slate Creek Diversion across from the intake structure. 1066 Comment
  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
  UCR194898  Clarkia purpurea subsp. quadrivulnera George K. Helmkamp, E. A. Helmkamp 2007-5-26 12136 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, just north of the Nevada Co. line; beside Oregon Creek and Oregon Creek campground 430 Comment
  CAS-BOT-BC163417  Clarkia purpurea subsp. quadrivulnera Lillian S. Mott 1965-4-21 LM 6548 Yuba Hiway 20 to Marysville Comment
  CAS-BOT-BC163419  Clarkia purpurea subsp. quadrivulnera Alice Eastwood 1921-5-22 10518 Yuba Los Vergils Comment
  UCD104954  Clarkia purpurea subsp. quadrivulnera Barbara Yungert 1974-5-1 100 Yuba Sc-13 project area, Sierra Foothill Field Station. Comment
  JEPS125921  Clarkia stellata D. W. Taylor 2001-6-19 17791 Yuba Ca 1 mile NW of Union Hill, along Forest Road 20N19 about400 m S of Forest Road 21 N17 Comment
  POM161753  Clarkia stellata R. C. Bacigalupi 1927-7-2 1584 Yuba Highway to Downieville about 8 mi NE of Camptonville. Comment
  UCR196982  Clarkia virgata George K. Helmkamp, E. A. Helmkamp 2008-5-20 13467 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
Read comments Jun 29 2014
  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
  UCD95601  Clematis lasiantha H. A. Borthwick 1925-3-17 395 Yuba Marysville Buttes. 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
  UCD123665  Collinsia sparsiflora Barbara Yungert 1974-4-16 49 Yuba south of Road 4, SC-14 project area, Sierra Foothill Field Station. Comment
  JEPS18883  Collinsia sparsiflora var. collina Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1956-4-19 5618 Yuba 0.5 mi. n. Dobbins Ranger Station (CA State Dept. of Forestry) (along rd. from Oregon House to Dobbins) 548 Comment
  CHSC47689  Collinsia tinctoria Lowell Ahart 1981-6-13 2844 Yuba North-east side of McGinn Hill, east of Loma Rica. 274 Comment
  UCD35868  Collinsia tinctoria Beecher Crampton 1965-6-17 7378 Yuba ca. 0.75 mile north of Stanfield Hill, Willow Glen Creek. 396 Comment
  POM161752  Collomia heterophylla R. C. Bacigalupi 1927-7-2 1582 Yuba Road to Downieville, 2 miles west of Camptonville Comment
Read comments Nov 9 2011
  SJSU10223  Collomia heterophylla C. W. Sharsmith 1983-6-8 8804 Yuba Slate Cr at bridge crossing of the Scales-LaPorte Rd 1066 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
  CDA7451  Conyza bonariensis L. Ahart 1999-9-17 8254 Yuba Sam Shintaffer Farm, on the west side of Kimball Lane, near the intersection of Kimball Lane and Hallwood Boulevard, about 3/4 mile south of Sam Shintaffer s rice dryer, about 4 1/4 miles (air) northeast of Marysville. Comment
  JEPS115030  Conyza floribunda Lowell Ahart 2007-11-1 14545 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  SEINET10549248  Cordylanthus pilosus subsp. bolanderi Lowell Ahart, Peter Ahart 1983-8-10 Ahart 4271 Yuba Peterson Rd, ca. 4 mi se of Challenge. Yellow Pine Forest; 1000 m. 1000 Comment
  JEPS95066  Cordylanthus tenuis subsp. tenuis Lowell Ahart 1997-8-7 7813 Yuba 3 air mi se of Challenge (on n. side of dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  CAS-BOT-BC209439  Cornus nuttallii Lloyd W. Swift 1932-5-12 57 Yuba Plumas National Forest. Clipper Mills 1066 Comment
  CAS-BOT-BC209883  Cornus nuttallii Lowell Ahart 1964-5-3 s.n. Yuba Near Bullard's Bar 914 Comment
  CDA38547  Cornus nuttallii T. C. Fuller 1961-9-21 7028 Yuba Moonshine Ridge, ca. 5 mi. west of Camptonville. 0 Comment
  UC1330014  Cornus sericea subsp. sericea Beecher Crampton 1966-6-14 7739 Yuba 1 mi. e. Brownsville (La Porte Rd.) Comment
  UCD33104  Cornus sericea subsp. sericea Beecher Crampton 1966-6-14 7739 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  JEPS127129  Cornus sessilis Lowell Ahart 2016-9-9 21345 Yuba After crossing Slate Creek on Old County Road to Scales, take first road to the right and go about 1/2 mile near Stowman Ravine, about 3 miles (air) southwest of Poverty Hill mine, about 8 miles (air) southwest of La Porte. Comment
  CDA3696  Coronopus didymus L. Ahart 1999-9-17 8250 Yuba Sam Shintaffer Farm, south of Woodruff Lane, south of Mathews Road, about 1/4 mile south of Sam Shintaffer s rice dryer, about 4 1/2 miles (air) northeast of Marysville. Comment
  CHSC116269  Crassula aquatica Lowell Ahart 2015-11-19 20690 Yuba 100 yards or more north of spillway area, below high water line, west of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  CHSC90337  Crassula tillaea Lowell Ahart 2005-3-11 11597 Yuba On the west side of the poor dirt road, about 1/2 mile west of Marysville Road, about 1/4 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/4 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 344 Comment
  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
  CHSC97502  Croton setiger Lowell Ahart 2007-5-12 13790 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCR200886  Croton setiger George K. Helmkamp, E. A. Helmkamp 2008-9-18 14129 Yuba Foothills, northern Sierra Nevada Mountains, Bullards Bar Dam, along Marysville Road, 6 miles southwest of its junction with CA-49 616 Comment
  UC1254613  Crucianella angustifolia Beecher Crampton 1967-5-17 7945 Yuba 0.5 mi w Timbuctoo Comment
  UCD33229  Crucianella angustifolia Beecher Crampton 1967-5-17 7945 Yuba Yuba County, 1/2 mile west of Timbuctoo. Comment
  UCD37137  Crucianella angustifolia Beecher Crampton 1957-6-5 4163 Yuba Town of Timbuctoo, across from old Stewart and Brothers and Wells Fargo Store. Comment
  SEINET7042666  Crucianella angustifolia A. G. Vestal 1963-5-29 s.n. Yuba Along the road to Smartville, 0.4 mile southwest of road to Beale Airforce Base. Camp Far West quadrangle UTM Zone 10, 644119mE, 4329948mN. Comment
  SEINET7072976  Crucianella angustifolia W. P. Vestal 1963-5-29 s.n. Yuba Olivehurst-Smartville Road about 0.4 mile southwest of paved road from Beale Air Force Base toward Smartville. Comment
  UCD121546  Crucianella angustifolia Beecher Crampton 1957-6-5 4163 Yuba Town of Timbuctoo, across from old Stewart and Brothers and Wells Fargo Store. Comment
  CHSC81844  Crypsis alopecuroides Lowell Ahart 2001-11-2 9406 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  JEPS102598  Crypsis alopecuroides Lowell Ahart 2001-11-2 9406 Yuba Camp Far West Reservoir, about 1/4 mile NE of the dam, about 9 miles (air) SE of Wheatland. 83 Comment
  JEPS115048  Crypsis alopecuroides Lowell Ahart 2007-11-8 14591 Yuba On the strand of Camp Far West Reservoir, about 1/4 mile north of Rock Creek, about 6 1/2 miles (air) northeast of Sheridan 68 Comment
  CHSC108223  Cryptantha flaccida Lowell Ahart 2011-6-7 17386 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CAS-BOT-BC80750  Cupressus macnabiana C. B. Wolf; E. R. Johnson 1934-10-3 6152 Yuba Sierra Nevada Foothills, Texas Hill, approx. 2 mi. W., of Dobbins 548 Comment
  CAS-BOT-BC80754  Cupressus macnabiana Alice Eastwood 1930-4-12 17931 Yuba near top of Texas [hill] Hill Comment
  CAS-BOT-BC80755  Cupressus macnabiana Junea Kelley 1922-7-16 s.n. Yuba Dobbins Comment
  CHSC45223  Cupressus macnabiana Lowell Ahart 1976-11-7 1001 Yuba On the east side of Frenchtown Road, about 1 mile north of Oregon House. 457 Comment
  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
  NY16728  Cupressus macnabiana C. B. Wolf 1934-10-4 6156 Yuba This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA724935  Cupressus macnabiana L. P. Janeway 2006-5-24 8627 Yuba Northern Sierra Nevada Foothills. Along Forsythe Road 2.7 road km south of New York House Road; above Prince Albert Creek 604 Comment
  UC1134224  Cupressus macnabiana H. A. Jensen 1934-11-14 376 Yuba 2 mi nw of Indiana Ranch; Smartsville Quadrangle Comment
  UC573355  Cupressus macnabiana H. A. Jensen 1934-11-14 376 Yuba 2 mi nw Indiana Ranch; Smartsville Quadrangle 548 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
  UCD110852  Cupressus macnabiana Christopher Mallek 2008-1 IC- 1 Yuba Indiana Creek. 617 Comment
  UCD33686  Cupressus macnabiana Beecher Crampton 1972-2-14 8769 Yuba 1.5 miles N.N.E. of Oregon House. Comment
  NY16739  Cupressus macnabiana C. B. Wolf 1934-10-3 6151 Yuba This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SEINET10531481  Cupressus macnabiana Carl B. Wolf, E. R. Johnson 1934-10-3 Wolf 2116 Yuba Sierra Nevada Foothills, Texas Hill, approx. 2 mi W of Dobbins. Upper sonoran:- Yellow Pines. Sun. Sterile rocky soil (granitic). 550 Comment
  SEINET3863434 Image available Cupressus macnabiana Beecher Crampton 1972-2-14 8769 Yuba Ca. 1.5 miles N.N.E. of Oregon House.; 0 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
  CHSC97730  Cuscuta pentagona Lowell Ahart 2007-11-8 14578 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  JEPS115049  Cuscuta pentagona Lowell Ahart 2007-11-8 14578 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan 73 Comment
  RSA727526  Cuscuta pentagona L. Ahart 2007-11-8 14578 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 74 Comment
  CHSC47674  Cuscuta subinclusa Lowell Ahart 1989-9-3 6386 Yuba On the west side of Ponderosa Way, west of the Brownsville Dump, about 1 mile south-west of Brownsville. 609 Comment
  JEPS113724  Cynodon dactylon Lowell Ahart 2007-5-14 13845 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  UCD60074  Cynodon dactylon Beecher Crampton 1957-6-5 4148 Yuba 1/2 mile W of Oregon House Post Office. Comment
  CAS-BOT-BC190396  Cynosurus echinatus Barbara T. Keller 1975-6-10 1512 Yuba Willow Glen Road from Stanfield Hill to Brownsville, about 11.5 miles north of junction of Willow Glen Road and Marysville Road. Comment
  JEPS118672  Cynosurus echinatus L. P. Janeway 2011-7-5 10492 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. French Corral 7.5' quad. Comment
  POM319499  Cynosurus echinatus Patricia Wilder 1971-6-23 5200 Yuba West outskirts of the town of Challenge in a vacant lot; 20 miles east of Oroville. 762 Comment
  UCD60143  Cynosurus echinatus Barbara Yungert 1974-5-13 G- 13 Yuba South of road, 100 yards north of picnic area, Sierra Foothill Field Station. 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
  JEPS94414  Cyperus difformis Lowell Ahart 1997-8-13 7864 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
  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
  JEPS64101  Cyperus eragrostis W. L. Jepson 1934-7-29 16760 Yuba Smartsville Comment
  RSA726803  Cyperus eragrostis L. Ahart 2007-6-30 14229 Yuba About 13 miles (air) northeast of Marysville. 30 Comment
  SEINET10585760  Cyperus eragrostis Lowell Ahart 2007-11-1 Ahart 14540 Yuba T18N, R8E, southwest 1/4 Section 3. On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  SEINET9772565 Image available Cyperus eragrostis Richard Carter 2006-7-31 Yuba 12.5 mi ENE Marysville jct. Hwy CA 20 and Hwy CA 70, by Hwy CA 20 Comment
  UCD141047  Cyperus eragrostis G. K. Helmkamp 2006-10-10 11524 Yuba Northern Sierra Nevada Mountains Foothills; along Hwy CA-49 just north of the Nevada County line at the Middle Yuba River bridge. 451 Comment
  UCR179807  Cyperus eragrostis George K. Helmkamp, E. A. Helmkamp 2006-10-10 11524 Yuba Northern Sierra Nevada Mountains Foothills, along Calif. Hwy 49 just north of the Nevada County line at the Middle Yuba River bridge 451 Comment
  JEPS102713  Cyperus erythrorhizos Lowell Ahart 2001-11-2 9404 Yuba Camp Far West Reservoir, about 1/4 mile NEaa of the dam, about 9 miles (air) SE of Wheatland. 83 Comment
  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
  CDA2580  Cyperus iria L. Ahart 1999-9-5 8197 Yuba On the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. Comment
  CDA38966  Cyperus niger L. Ahart 1999-9-17 8256 Yuba Sam Shintaffer Farm, on the west side of Kimball Lane, near the intersection of Kimball Lane and Hallwood Boulevard, about 3/4 mile south of Sam Shintaffer s rice dryer, about 4 1/4 miles (air) northeast of Marysville. Comment
  SEINET13709327  Cyperus niger Lowell William Ahart, Lowell William Ahart 1999-1 8256 Yuba Cyperus, 4.25 Air Mi NE Marysville Comment
  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
  SD236138  Dactylis glomerata G. K. Helmkamp, E. A. Helmkamp 2008-5-20 13474 Yuba Sierra Nevada Mountains Foothills: along CA-49, 466 Comment
  CHSC112950  Danthonia californica var. americana L. P. Janeway 2014-6-26 11421 Yuba Northern High Sierra Nevada. Plumas National Forest; small ephemeral meadow on a flattish bench at head of ephemeral northeastern tributary to Little Oregon Creek; 1.9 air km south-southeast of Pike County Peak; 0.24 km northeast of Oregon Hill Road, 0.15 km south of Peterson Ridge Road. 852 Comment
  CHSC44559  Danthonia californica var. americana Lowell Ahart 1979-6-25 1953 Yuba Along the road gutter, there is a spring near by, about 2 miles east of Challenge. 640 Comment
  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
  JEPS104247  Danthonia californica var. americana Lowell Ahart 2003-7-6 10368 Yuba In meadow, e of the power line, ca 60 yd nw of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  JEPS122453  Danthonia californica var. americana L. P. Janeway 2014-6-26 11421 Yuba Northern High Sierra Nevada. Plumas National Forest; small ephemeral meadow on a flattish bench at head of ephemeral northeastern tributary to Little Oregon Creek; 1.9 air km south-southeast of Pike County Peak; 0.24 km northeast of Oregon Hill Road, 0.15 km south of Peterson Ridge Road. Quad: Challenge 7.5'. Comment
  RSA712852  Danthonia californica var. americana L. P. Janeway 2006-5-24 8615 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way 1.3 road km southeast of Robinson Mill Road; 1.3 air km southeast of Robinson Mills & Forbestown Road. 235 Comment
  UC1153912  Danthonia californica var. americana Beecher Crampton 1957-6-5 4159 Yuba 1.3 mi e Oregon House store Comment
  UCD60730  Danthonia californica var. americana Beecher Crampton 1965-6-17 7380 Yuba 4 miles S of Brownsville, Willow Glen Road. 670 Comment
  UCD33119  Danthonia unispicata Beecher Crampton 1966-6-14 7764 Yuba Yuba County, 1 mile east of Brownsville on La Porte road, near Brownsville Fire Station, CA div. of Forestry. Comment
  UCD61333  Danthonia unispicata W. R. Powell 1966-5-18 1274 Yuba 3/4 miles east of Lake Mildred, 1 1/2 miles NNE of Oregon House. 487 Comment
  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
  JEPS95893  Daucus carota Lowell Ahart 1999-9-5 8192 Yuba on the disturbed area on the south side of Woodruff Lane; just west of Kimball Lane; about 5 miles (air) northeast of Marysville 24 Comment
  UCD127493  Daucus pusillus Barbara Yungert 1974-5-13 148 Yuba north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  SEINET7073613  Delphinium gracilentum A. G. Vestal 1955-5-21 s.n. Yuba About 20.5 miles east of Oroville on Challang Cuttoff Road. UTM Zone 10, 650291mE, 4373240mN. Coordinate datum: NAD27. Comment
  HSC47883  Delphinium hansenii H. Lewis, Carl Epling 1941-5-26 Yuba Smartville Comment
  LA207396  Delphinium hansenii H. Lewis; Carl Epling 1941-5-26 sn Yuba Smartville Comment
  CAS-BOT-BC8557  Delphinium hansenii Alice Eastwood 1921-5-22 10525 Yuba Los Vergils Comment
  LA207395  Delphinium hansenii H. Lewis; M. Lewis 1947-6-7 764 Yuba 2.4 mi. W of Dobbins Comment
  RSA149649  Delphinium hansenii Harlan Lewis, C. Epling 1941-5-26 s.n. Yuba Smartville Comment
  CAS-BOT-BC10237  Delphinium hesperium R. K. Wellman 1981-5-17 025 Yuba Junction of county roads E-20 and E-21 152 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-BC192649  Deschampsia danthonioides Gordon H. True 1963-4-23 1191 Yuba About 10 miles east of Marysville on Marysville-Grass Valley Highway 30 Comment
  CAS-BOT-BC201731  Deschampsia elongata Barbara T. Keller 1975-6-10 1498 Yuba Challenge Experimental Forest on La Porte Road near Challenge 762 Comment
  CAS-BOT-BC201732  Deschampsia elongata Lowell Ahart 1979-6-25 s.n. Yuba 1 mile south of Challenge 700 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
  CAS-BOT-BC402378  Dicentra formosa subsp. formosa Herbert L. Mason 1927-5-11 3734 Yuba Near Bullards Bar 609 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
  JEPS98606  Dichanthelium acuminatum subsp. fasciculatum Lowell Ahart 2000-6-19 8492 Yuba In a meadow, ca 100 yards N of New York Flat Road, ca 1 1/4 miles (air) NE of Brownsville, ca 2 1/4 miles (air) W of Challenge. 731 Comment
  UCD112037  Dichelostemma capitatum Christopher Mallek 2008-5-5 IC3- 18 Yuba Indiana Creek. 617 Comment
  CAS-BOT-BC483644  Dichelostemma capitatum Peter H. Raven 1953-5-9 5469 Yuba 1 mile from Brownsville on road to Challenge Comment
  UCD139230  Dichelostemma capitatum Richard Sannar 1982-3-26 33 Yuba along both sides of Wheatland - Smartville Road, 3.7 miles NE of Wheatland. Comment
  CHSC118503  Dichelostemma capitatum subsp. capitatum L. P. Janeway 2016-5-11 11959 Yuba Northern High Sierra Nevada. Plumas National Forest; near head of eastern tributary of Indian Creek; west side of Road 19N53 0.4 road-km south of Road 29N13. 920 Comment
  CHSC23169  Dichelostemma capitatum subsp. capitatum Robert A. Schlising; G. Keator 1963-4-8 2496 Yuba Along Hwy 20, near Brownsville, 29.4 mi W of Nevada City. Comment
  SEINET13276746 Image available Dichelostemma capitatum subsp. capitatum George K. Helmkamp 2014-1 22767 Yuba Sierra Nevada Foothills: Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville (Smartsville 7.5' Q.) 264 Comment
  RSA333554  Dichelostemma capitatum subsp. capitatum Craig Martz, Richard F. Sannar 1982-3-24 33 Yuba Along both sides of Wheatland-Smartville Road, 3.7 miles NE of Wheatland. 125 Comment
  CHSC108193  Dichelostemma multiflorum Lowell Ahart 2011-6-7 17420 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC97503  Dichelostemma multiflorum Lowell Ahart 2007-5-14 13885 Yuba 60 yards northeast of the gate, about 20 yards north of the power tower, about 70 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  SEINET7072988  Dichelostemma multiflorum A. G. Vestal 1963-5-30 s.n. Yuba Dry Creek at junction with Peoria Road north of Sicard. Coordinate datum WGS84/NAD83. (39? deg. 14' 2" North Latitude, -121? deg. 20' 47" West Longitude. UTM Zone 10, 642723mE, 4343827mN. Coordinate datum: NAD27). Comment
  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
  UCD80429  Dichelostemma multiflorum CNPS SN Foothill Team 2005-5-31 SNFN 0329 b Yuba BLM Ponderosa Landfill; east of the defunct landfill. 699 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
  SEINET7042626  Dichelostemma multiflorum A. G. Vestal 1963-5-7 s.n. Yuba Ca. 3.5 miles north of Wheatland. Camp Far West quadrangle UTM Zone 10, 640908mE, 4323324mN. Comment
  UCD139254  Dichelostemma multiflorum R. O. Hanes 1992-4-6 50 Yuba Plumas Forest. 731 Comment
  CAS-BOT-BC501114  Dichelostemma volubile Alice Eastwood 1921-5-22 10521 Yuba Los Vergils Comment
  SEINET7042659  Dichelostemma volubile A. G. Vestal 1963-5-30 s.n. Yuba Turn off to Timbuctoo at Yuba river. Smartville quadrangle UTM Zone 10, 644012mE, 4342272mN. Comment
  SJSU9998  Dichelostemma volubile J. B. Willis Jr. 1968-4-27 71 Yuba S bank Yuba River on old stage rd to Timbucktoo, 18 mi E of Marysville Comment
  CHSC47404  Dichondra donelliana Lowell Ahart 1981-6-13 2859 Yuba On the banks of a small stream, about 1/2 mile west of McGinn Hill, east of Loma Rica. 365 Comment
  CDA42982  Digitaria sanguinalis L. Ahart 2013-11-3 19302 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. Comment
  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
  UCD64095  Digitaria sanguinalis Beecher Crampton 1964-10-22 7224 Yuba 3 miles east of Brown's Valley, Dry Creek. Comment
  CAS-BOT-BC153792  Diplacus angustatus Alice Eastwood 1930-4-12 s.n. Yuba Texas hill road Comment
  SEINET13693759  Diplacus aurantiacus D. Kaplan 1981-5-2 s.n. Yuba Hwy 49, Dobbins. 914 Comment
  CAS-BOT-BC150266  Diplacus grandiflorus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54075 Yuba 1.4 miles southwest of Bullards Bar Dam on road to Challenge 609 Comment
  SEINET13765312 Image available Diplacus grandiflorus Mary Anne Brayton 1964-1 15 Yuba Harry L. Englebright Dam - south shore near dam, State Highway 20, 20 miles northwest of Marysville 183 Comment
  SEINET13765295 Image available Diplacus grandiflorus L. Constance 1938-1 2291 Yuba Sierra Nevada foothills; Middle Fork of the Yuba River, 4 miles W of North San Juan 427 Comment
  CAS-BOT-BC151758  Diplacus kelloggii Alice Eastwood 1921-5-22 10550 Yuba Los Vergils Comment
  CAS-BOT-BC151759  Diplacus kelloggii Gordon H. True 1963-5-2 1209 Yuba Oregon Creek at jct. with middle Yuba River, at Freeman's Crossing - Sierra Nevada 457 Comment
  CAS-BOT-BC151760  Diplacus kelloggii Daniel Campbell 1974-5-23 s.n. Yuba 1/2 mile south of Camptonville on Solidarity Mining Claim - Sierra Nevada 701 Comment
  CHSC47503  Diplacus torreyi Lowell Ahart 1980-6-19 2404 Yuba Growing on the east side of Petterson Ridge Road, about 3 1/2 miles south-east of Challenge. 762 Comment
  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
  CHSC59582  Dodecatheon hendersonii H. E. Mac Lennan 1992-3-14 1 Yuba 20 air miles se of Oroville. 472 Comment
  CDA41425  Dopatrium junceum D. L. Wilson 1975-8-7 s.n. Yuba Ramirez Road, Marysville. 0 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
  JEPS104416  Draperia systyla Lowell Ahart 2003-10-11 10625 Yuba On the east margins of a gravel road to the Rose Ranch, ca 100 yd west of the paved road to Scales, ca 1/2 mi south of the Rose Ranch, ca 5 miles (air) northeast of Strawberry Valley, ca 7 mi (air) southwest of La Porte. 1219 Comment
  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
  CHSC32106  Dryopteris arguta L. Ahart 1974-12-29 688 Yuba Ca. 100 yds below the rd near the edge of Costa Creek, 2.5 mi e of Forbestown. 518 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
  CHSC113186  Dysphania pumilio Lowell Ahart 2013-11-30 19306 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
  CHSC96872  Echinochloa colona Lowell Ahart 2007-6-30 14233 Yuba Near a new ditch, near and east of a new road pad, about 350 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113716  Echinochloa colona Lowell Ahart 2007-6-30 14230 Yuba Sides of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  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
  UCD60822  Echinochloa crus-galli Beecher Crampton 1963-9-9 6878 Yuba 2.5 miles n.n.w. Smartsville, 5 miles east Brown's Valley. U.C. Sierra Foothill Field Station. Comment
  UCD60830  Echinochloa crus-galli Beecher Crampton 1963-9-9 6879 Yuba 2.5 miles n.n.w. Smartsville, 5 miles east Brown's Valley. U.C. Sierra Foothill Field Sta. Comment
  UCD61110  Echinochloa oryzicola Earl Storm 1997-7-24 Yuba Stass Farms, North Beale Road, Marysville. Comment
  CAS-BOT-BC208570  Echinochloa oryzoides Wm. F. Herrin 1920-10-1 s.n. Yuba Rice fields. 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
  SEINET13709663  Eleocharis acicularis var. bella Lowell William Ahart, Lowell William Ahart 2000-1 8507 Yuba N of Scales Road about 3 Mi. NE of Strawberry Valley (T20N, R8E, sec 15, NW 1/4) 4000 Ft. 1219 Comment
  JEPS124314  Eleocharis atropurpurea Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20647 Yuba Below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  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
  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
  CHSC78297  Eleocharis bolanderi Lowell Ahart 2000-6-23 8505 Yuba 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
  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
  JEPS95538  Eleocharis bolanderi Lowell Ahart 1994-6-27 7375 Yuba 4 mi NE of Strawberry Valley (center of Schwartz Meadow, E side of La Porte Road) 1219 Comment
  JEPS98365  Eleocharis bolanderi Lowell Ahart 2000-6-23 8505 Yuba 3 mi NE of Strawberry Valley (bog in small meadow, 80 yds E of the meadow along La Porte Road,100 yds N of Scales Road) 1219 Comment
  CAS-BOT-BC113345  Eleocharis engelmannii John Thomas Howell; Gordon H. True 1969-6-24 5098 Yuba Artificial lake ca. 1 mi NW of Spenceville (site) on Cox Creek. 152 Comment
  CHSC78185  Eleocharis macrostachya Lowell Ahart 2000-6-11 8461 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
  JEPS113715  Eleocharis macrostachya Lowell Ahart 2007-6-30 14235 Yuba West side of a new ditch, near and west of a new road pad, about 350 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS98567  Eleocharis macrostachya Lowell Ahart 2000-6-11 8461 Yuba 6 mi (air) S of Smartville (on bottom of a deep wash, a N branch of Dry Creek, 100 yds W of Waldo Rd and Smartville Rd) 146 Comment
  UCR201938  Eleocharis macrostachya George K. Helmkamp, E. A. Helmkamp 2008-10-6 14205 Yuba Sacramento Valley, junction of CA-65 and Ostrom No. 3 Road, southeast of Olivehurst 24 Comment
  CAS-BOT-BC113034  Eleocharis macrostachya Gordon H. True; John Thomas Howell 1969-6-24 5099 Yuba Artificial lake ca. 1 mi. NW of Spenceville (site) on Cox Creek. 152 Comment
  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
  JEPS103518  Eleocharis obtusa Lowell Ahart 2002-10-9 9973 Yuba Along Lost Creek, below the high water line of Sly Creek Reservoir, ca 50 yards SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS124259  Eleocharis obtusa Lowell Ahart 2015-11-19 20689 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  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
  CHSC73706  Eleocharis pachycarpa B. Castro; L. Gehrung 1995-9-12 600 A Yuba Fish Mdw. Ca 5 air mi NE of Strawberry Valley, and ca 1.5 mi E of Slate Ck. In meadow on unnamed stream flowing S into Canyon Ck, ca 500 ft W of USFS Rd 20N35 via unnamed dirt rd. Towards upper end of meadow. 1249 Comment
  CHSC78195  Eleocharis pachycarpa Lowell Ahart 2000-5-25 8400 Yuba On the sidesof a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  CHSC84933  Eleocharis pachycarpa Lowell Ahart 2003-10-11 10622 Yuba Small wash in a meadow, on the east side of a gravel road to the Rose Ranch, about 100 yards west of the paved road to Scales, about 1/2 mile south of the Rose Ranch, about 5 miles (air) northeast of Strawberry Valley, about 7 miles (air) southwest of La Porte. 1219 Comment
  JEPS124318  Eleocharis pachycarpa Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20642 Yuba Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  JEPS98437  Eleocharis pachycarpa Lowell Ahart 2000-5-25 8400 Yuba 6 air mi S of Smartville (sides of a deep wash, a N branch of Dry Creek, 2 mi N of intersection of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  JEPS98594  Eleocharis pachycarpa Lowell Ahart 2000-6-19 8490 Yuba Along a S branch of Dry Creek, on the S side of Marysville Road, ca 1/4 mile W of the intersection of Marysville Road and Frenchtown Road, W of Oregon House, ca 2 miles E of Collins Lake. 457 Comment
  SD131013  Eleocharis pachycarpa Gordon H. True, John Thomas Howell 1970-5-29 5422 Yuba Artificial lake ca. 1 mile northwest of Spenceville (site) on Cox Creek. In wet soul and shallow water at edge of lake. 152 Comment
  SEINET13710869  Eleocharis pachycarpa Lowell William Ahart, Lowell William Ahart 2000-1 8490 Yuba 2 Mi. E of Collins Lake (T17N, R6E, sec 3, NE 1/4) 1500 Ft. 457 Comment
  SEINET7586814 Image available Eleocharis pachycarpa Lowell Ahart 2000-6-19 8490 Yuba Along a south branch of Dry Creek, on the south side of Marysville Road, about 1/4 mile west of the intersection of Marysville Road and Frenchtown Road, west of Oregon House, about 2 miles east of Collins Lake. 457 Comment
  RSA0012078  Eleocharis palustris George K. Helmkamp, E. A. Helmkamp 2011-5-6 17206 Yuba junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg ) of Wheatland. 56 Comment
  UCD84798  Eleocharis quadrangulata Collector Unknown 2010-7-1 s.n. Yuba Marysville area. Comment
  CHSC78303  Eleocharis quinqueflora Lowell Ahart 2000-6-23 8506 Yuba Bog in a small meadow, about 80 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  JEPS98361  Eleocharis quinqueflora Lowell Ahart 2000-6-23 8506 A Yuba 3 mi NE of Strawberry Valley (small meadow,100 yds E of the meadow along La Porte Road,100 yds N of Scales Road) 1219 Comment
  JEPS98608  Eleocharis quinqueflora Lowell Ahart 2000-6-19 8493 Yuba Wet meadow, ca 100 yards N of New York Flat Road, ca 1 1/4 miles (air) NE of Brownsville, ca 2 1/4 miles (air) W of Challenge. 731 Comment
  JEPS98723  Eleocharis quinqueflora Lowell Ahart 2000-6-23 8506 Yuba Bog in a small meadow, about 80 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  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
  RSA716568  Eleocharis quinqueflora L. Ahart 2000-6-23 8506 Yuba About 80 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley 1220 Comment
  SEINET7587004 Image available Eleocharis quinqueflora Lowell Ahart 2000-6-19 8493 Yuba About 100 yards north of New York Flat Road, about 1 1/4 miles (air) northeast of Brownsville, about 2 1/4 miles (air) west of Challenge. 732 Comment
  CHSC116116  Eleocharis radicans Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20641 Yuba On the bottom of the outflow area at the bottom of Lake Francis Dam, Lake Francis, about 1-1/2 miles south of Dobbins. 479 Comment
  JEPS124319  Eleocharis radicans Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20641 Yuba Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CDA43379  Eleusine tristachya Gary Walker 2014-11-25 PDR# 510 P06303491 Yuba West of Highway 70, near Magnolia Road, eight miles north of Marysville. 0 Comment
  CDA36342  Elodea nuttallii Jonathan Heintz 2011-12-14 PDR# 1322430 Yuba Browns Valley, 9659 Stern Lane. 0 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
  CHSC97462  Elymus caput-medusae Lowell Ahart 2007-5-14 13859 Yuba In the center of a dirt road, 60 yards north of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville. 29 Comment
  JEPS118729  Elymus caput-medusae L. P. Janeway and Melanie Williams, Tim Hanson 2011-6-9 10370 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. French Corral 7.5' quad. Comment
  CAS-BOT-BC227154  Elymus elymoides Lowell Ahart 1979-6-25 s.n. Yuba 2 mi e of Challenge 700 Comment
  UCD147098  Elymus elymoides var. elymoides Chuck Hughes 2013-5-16 382 Yuba Near margin of Camp Far West Reservoir. 95 Comment
  UCD61799  Elymus glaucus Beecher Crampton 1971-6-18 8733 Yuba Sierra Foothill Range Field Station. Ca. 6 miles E of Browns Valley. Comment
  UCD62317  Elymus glaucus Beecher Crampton 1957-6-5 4139 Yuba 1 mile east of Stanfield Hill. Comment
  UCD148347  Elymus glaucus G. Douglas Barbe; J. T. Howell, T. C. Fuller 1981-6-22 3038 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  UCD62472  Elymus multisetus Beecher Crampton 1957-6-5 4136 Yuba 7.5 miles northeast of Brown's Valley town. Comment
  UCD62497  Elymus multisetus Beecher Crampton 1966-6-14 7762 Yuba 1 mile west of Brownsville. 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
  CHSC69426  Epilobium brachycarpum Lowell Ahart 1997-8-30 7876 Yuba On the west side of the dirt road, in a clear cut, Peterson Ridge Road, about 3 miles (air) east of Challenge. 762 Comment
  JEPS94446  Epilobium brachycarpum Lowell Ahart 1997-8-30 7876 Yuba about 3 air mi e of Challenge (on w side of the dirt road, in clear cut, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  UCD105307  Epilobium brachycarpum G. K. Helmkamp; E. A. Helmkamp 2006-10-10 11529 Yuba Northern Sierra Nevada Mountains Foothills. Along Hwy CA-49 just N of the Nevada County line at the Middle Yuba River bridge. 451 Comment
  UCR189621  Epilobium brachycarpum George K. Helmkamp, E. A. Helmkamp 2007-8-29 12843 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 1.2 miles southwest of Camptonville 701 Comment
  CHSC96939  Epilobium campestre Lowell Ahart 2007-6-30 14226 Yuba Bottom of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  SBBG121611  Epilobium campestre L. Ahart 2007-6-30 14226 Yuba ca. 250 yards W of the power tower, ca. 100 yards N of Fruitland Rd, ca. 13 mi (air) NE of Marysville 29 Comment
  JEPS104040  Epilobium ciliatum subsp. ciliatum Lowell Ahart 2003-7-2 10349 Yuba Seep on the e side of Fountain Hill Rd, ca 3 mi south of Oregon Hill Rd, ca 1/2 mi (air) n of Fountain House Hill, ca 3 mi (air) ne of Dobbins. 841 Comment
  JEPS43829  Epilobium ciliatum subsp. ciliatum W. L. Jepson 1934-7-29 16754 Yuba Marysville Comment
  JEPS94624  Epilobium ciliatum subsp. ciliatum Lowell Ahart 1997-8-7 7818 Yuba Peterson Ridge Rd. about 3 air mi se Challenge (on bottom and sides of small stream, a branch of Little Oregon Creek, on e side of dirt road) 762 Comment
  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
  JEPS113484  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2007-6-30 14236 A Yuba West side of a new ditch, near and west of a new road pad, about 350 yards west of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  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
  CHSC97228  Epilobium densiflorum Lowell Ahart 2007-6-22 14211 Yuba About 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  HSC99266  Epilobium densiflorum L. Ahart 2003-7-17 10413 Yuba W side of Smartville Rd., about 2 mi. N of the intersection of Waldo Rd. and Smartville Rd., about 6 mi. S of Smartville 130 Comment
  JEPS104592  Epilobium densiflorum Lowell Ahart 2003-7-17 10413 Yuba On the sides of a stream, on the w side of Smartville Rd, ca 2 mi n of the intersection of Waldo Rd and Smartville Rd, ca 6 mi (air) south of Smartville. 129 Comment
  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
  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
  CHSC84244  Epilobium torreyi Lowell Ahart 2003-7-17 10414 Yuba On the sides of a stream, on the west side of Smartville road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 129 Comment
  HSC100775  Epilobium torreyi Lowell Ahart 2007-5-12 13800 Yuba 13 (air) mi. NE of Marysville, ~400 yd. N of Fruitland Rd., ~50 yd. N of the second power tower, ~30 ft. E of a culvert. 28 Comment
  CHSC43309  Equisetum arvense Lowell Ahart 1977-4-17 1312 Yuba About 1 mile south of Challenge, about 1 1/2 miles west of Pike County Peak. 548 Comment
  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
  CAS-BOT-BC57147  Equisetum hyemale subsp. affine Lowell Ahart 1977-4-17 s.n. Yuba About 3 miles south of Challenge 700 Comment
  JEPS95149  Eragrostis mexicana subsp. virescens Lowell Ahart 1997-8-13 7866 Yuba about 2 1/4 air mi e of Browns Valley (on s side of Scott Forbes Road, 1/4 mi e of intersection of Scott Forbes Road and Peoria Road, just e of Gray Drive); s side of Scott Forbes Road 91 Comment
  SEINET3015267  Eragrostis mexicana subsp. virescens L. Ahart 1997-8-13 7866 Yuba On the south side of Scott Forbes Rd, 1.4 mi E of the intersection of Scott Forbes Rd and Peoria Rd., just E of Gray Drive about 2 1/4 mi 9air) E of Browns Valley. 91 Comment
  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
  JEPS103302  Ericameria nauseosa var. speciosa Lowell Ahart 2002-9-8 9936 Yuba Along a wash, on the N side of the dirt road, ca 1 mile SE of Woodleaf, ca 3 miles (air) NE of Challenge. 1001 Comment
  CHSC108163  Ericameria parryi var. latior L. P. Janeway 2011-8-15 10653 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
  JEPS118708  Ericameria parryi var. latior L. P. Janeway 2011-8-15 10653 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 km east of Dobbins, 2.1 air km south-southwest of Oregon Peak, 0.2 km north of Marysville Road. French Corral 7.5' quad. Comment
  CDA4932  Erigeron divergens Unknown 1925-5-16 1660 Yuba Marysville. 0 Comment
  CHSC84170  Erigeron inornatus var. inornatus Lowell Ahart 2003-7-6 10358 Yuba Near a meadow, east of the power line, about 60 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  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
  SEINET10839187 Image available Erigeron inornatus var. viscidulus Lowell Ahart, Peter Ahart 1983-8-10 Ahart 4272 Yuba Peterson Rd, ca. 4 mi se of Challenge. Yellow Pine Forest; 1000 m. 1000 Comment
  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
  CHSC97698  Erigeron sumatrensis 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
  CAS-BOT-BC216038  Eriodictyon californicum Alice Eastwood 1930-4-12 s.n. Yuba Marysville Flower Show 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
  RSA726489  Eriodictyon californicum L. Ahart 2007-4-17 13688 Yuba Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5.5 miles (air) northeast of Loma Rica. 293 Comment
  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
  SEINET12335243  Eriodictyon californicum F. H. Utech 1990-1 90 -859 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  CAS-BOT-BC261458  Eriogonum nudum var. nudum Lowell Ahart 1980-8-12 2535 Yuba Along Slate Creek 1250 Comment
  CAS-BOT-BC261708  Eriogonum nudum var. oblongifolium Lowell Ahart 1980-8-12 2525 Yuba Ca. 2 miles south-east of Woodleaf 800 Comment
  CDA22676  Eriogonum umbellatum var. ahartii L. Ahart 2002-9-8 9935 Yuba Along a small wash, on the north side of the dirt road, about 1 mile southeast of Woodleaf, about 3 miles (air) northeast of Challenge. Comment
  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
  JEPS113303  Eriogonum umbellatum var. ahartii L. P. Janeway, David Toren 2006-7-18 8815 Yuba Northern High Sierra Nevada. Along the 107 road, overlooking Golden Gate Ravine from the south; 2.4 km north-northeast of Challenge & 2.4 km southwest of Woodleaf. Comment
  JEPS95068  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-8-7 7835 Yuba about 3 air mi e of Challenge (on n side of dirt road, nw of the bridge across Indian Creek) 762 Comment
  SD147528  Eriogonum umbellatum var. speciosum Lowell Ahart 1980-8-12 2526 Yuba Sierra Nevada: Ca. 2 miles south-east of Woodleaf. 800 Comment
  CAS-BOT-BC301316  Eriophyllum lanatum var. croceum Barbara T. Keller 1975-6-10 1493 Yuba Challenge Experimental Forest along La Porte Road near Challenge 762 Comment
  JEPS127601  Eriophyllum lanatum var. croceum L. P. Janeway 2015-5-6 11671 Yuba Plumas National Forest; Forbestown, 510 m SSW of junction of Forbestown Road and Challenge-Cutoff Road. Comment
  CAS-BOT-BC308242  Eriophyllum lanatum var. grandiflorum Lewis S. Rose 1940-5-28 40385 Yuba Browns Valley 60 Comment
  CAS-BOT-BC308243  Eriophyllum lanatum var. grandiflorum Mrs. J. E. Cramsie 1923-5-22 s.n. Yuba Smartsville 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
  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
  SEINET8526857  Erodium botrys R. T. Short 1961-4-11 s.n. Yuba 5 miles west of Smartville on Calif. 20 366 Comment
  JEPS113510  Erodium moschatum Lowell Ahart 2007-5-14 13879 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  RSA125337  Eryngium castrense P. H. Raven, Otto T. Solbrig 1959-6-15 13225 Yuba 9.4 miles south of Marysville on Highway 99 Comment
Read comments Nov 8 2011
  UC1167729  Eryngium castrense Peter H. Raven with Otto T. Solbrig 1959-6-15 13225 Yuba 9.4 mi. s. Marysville (U.S. Hwy. 99E) Comment
  CDA18858  Eryngium castrense J. Horenstein 1999-6-9 s.n. Yuba NE of Cock's Creek, Spenceville Wildlife Area. 0 Comment
  UCD21177  Eryngium castrense Vernal Pool Team 2002; Carol Witham and Jennifer Buck 2002-6-5 352 Yuba Beale Air Force Base, North Beale Road. UTMs 10S0646172; 4300072. Comment
  SEINET7075555  Eryngium pinnatisectum A. G. Vestal 1955-4-4 s.n. Yuba About 9 miles northeast of Marysville on Route 20. 39? deg. 13' 38" North Latitude, -121? deg. 24' 51" West Longitude. UTM Zone 10, 636890mE, 4342994mN. (NAD 27)]. [Coordinate Datum: WGS84/NAD83]. Comment
  CAS-BOT-BC54683  Erysimum capitatum Lewis S. Rose 1939-6-7 39241 Yuba North Fork of Feather River. 3 miles south of Pulga. 609 Comment
  CAS-BOT-BC54682  Erysimum capitatum Mrs. Martin Goerges 1953-6-24 s.n. Yuba Lake Vera, North Fork, Yuba River. Comment
  CAS-BOT-BC54686  Erysimum capitatum Daniel Campbell 1974-6-10 s.n. Yuba Sierra Nevada. Highway 49, 1 mile south of Comptonville. Comment
  CHSC118502  Erythranthe bicolor L. P. Janeway 2016-5-11 11958 Yuba Northern High Sierra Nevada. Plumas National Forest; near head of eastern tributary of Indian Creek; west side of Road 19N53 0.4 road-km south of Road 20N13. 920 Comment
  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-BC153600  Erythranthe moniliformis Mrs. Martin Goerges 1953-6-24 s.n. Yuba Lake Vera, North Fork, Yuba River Comment
  CHSC87346  Erythronium multiscapideum Lowell Ahart 2004-4-27 10769 Yuba About 20 yards north of a drainage, about 50 yards east of the road, about 1/2 mile (air) southeast of Woodleaf. 931 Comment
  JEPS106273  Erythronium multiscapideum Lowell Ahart 2004-4-27 10769 Yuba About 20 yards north of a drainage, about 50 yards east of the road, about 1/2 mile (air) southeast of Woodleaf 931 Comment
  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
  CDA39344  Erythronium multiscapideum Yuba County School Children 1930-4-12 s.n. Yuba [No further data.] 0 Comment
  SJSU8125  Erythronium multiscapideum J. B. Willis Jr. 1969-4-19 Yuba Marysville Rd 0.5 mi W of Oregon House P.O., 7.5 mi W of Dobbins Comment
  UCD139644  Erythronium multiscapideum Kathleen Keliher 1975-4-12 59 Yuba near boat launch, Englebright Reservoir, C 1-11 project area, Sierra Foothill Field Station. 152 Comment
  CAS-BOT-BC402629  Eschscholzia caespitosa E. C. Cramsie 1924-4-1 s.n. Yuba Smartsville Comment
  UCR234194  Eschscholzia lobbii George K. Helmkamp, E. A. Helmkamp 2011-4-10 17163 Yuba Sacramento Valley, along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland 44 Comment
  CAS-BOT-BC419484  Eschscholzia lobbii Irene Creps 1955-4-9 14 Yuba 5 miles East of Wheatland Comment
  CAS-BOT-BC419486  Eschscholzia lobbii Helen McGovern 1928-3-23 s.n. Yuba Smartville Comment
  UCD95384  Eschscholzia lobbii Barbara Yungert 1974-4-14 36 Yuba K 1-11 project area, Sierra Foothill Station. Comment
  OBI69837  Eucalyptus globulus Jenn Yost and Matt Ritter, Matt Ritter 8-Apr 38 Yuba Plumas Arboga and I 70, in back yard of a house, near tracks Comment
  CDA4807  Euphorbia lathyris R. W. Nelson 1958-5-27 466 -58 Yuba 0 Comment
  CAS-BOT-BC202418  Euphorbia ocellata J. T. Howell; Gordon H. True 1969-6-24 5100 Yuba Ca. 1 mile NW of Spenceville (site) on Cox Creek 152 Comment
  CHSC68476  Euphorbia peplus Lowell Ahart 1997-4-6 7717 Yuba On the south side of the road, east of the intersection of Scott Forbes Road and Peoria Road, just southeast of the bridge across Dry Creek, about 14 miles northeast of Marysville. 60 Comment
  JEPS94937  Euphorbia spathulata Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7719 Yuba about 17 mi ne of Marysville (on s side of a poor dirt road, about 1/2 mi e of Scott Forbes Road (Long Bar Road) s of Dry Creek) 137 Comment
  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
  CHSC44867  Euthamia occidentalis Lowell Ahart 1978-9-24 1807 Yuba Along a drain ditch, on Shintaffer Farms, about 2 air miles north-east of Marysville. 30 Comment
  JEPS124268  Euthamia occidentalis Lowell Ahart 2015-11-19 20670 Yuba Lake Francis, about 1 1/2 miles south of Dobbins. 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
  CHSC100769  Festuca californica var. californica L. P. Janeway 2008-5-11 9356 Yuba Northern High Sierra Nevada. About 0.8 km north-northeast of Challenge; Golden Gate Ravine side of the ridge between that and Jordan Creek; west side of Road 19N04 1.1 km north-northwest of Challenge-La Porte Road. Near head of dry northwest-sloping swale. 994 Comment
  UCR258223  Festuca dertonensis George K. Helmkamp, Amy Barnes 2013-3-28 20252 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  CAS-BOT-BC278796  Festuca occidentalis Barbara T. Keller 1975-6-10 1510 Yuba Challenge Experimental Forest on La Porte Road near Challenge 762 Comment
  CHSC41203  Festuca occidentalis J. D. Jokerst 1984-7-5 2081 Yuba Canyon of Deadwood Creek between the creek and Weed Point. 883 Comment
  UCR258227  Festuca perennis George K. Helmkamp, Amy Barnes 2013-3-28 20255 A Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  UCD66499  Festuca subuliflora W. R. Powell 1966-5-19 1300 Yuba 5 1/2 miles s. e. Challenge 609 Comment
  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
  CAS-BOT-BC53656  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-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-BC53661  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-5 1444 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-BC53662  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-BC53663  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-5 1443 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-BC53666  Frangula californica subsp. tomentella Carl B. Wolf 1935-8-1 7564 Yuba along the Yuba River, near bridge on the Browns Valley - Smartsville Road, Sierra Nevada Foothills Comment
  CAS-BOT-BC53669  Frangula californica subsp. tomentella Carl B. Wolf; E. R. Johnson 1934-10-4 6155 Yuba Sierra Nevada Foothills. Texas Hill, 2 mi. W. of Dobbins 457 Comment
  CAS-BOT-BC53671  Frangula californica subsp. tomentella Alice Eastwood 1921-5-22 10530 Yuba Los Vergeles Comment
  LA207668  Frangula californica subsp. tomentella C. B. Wolf; 1927-11-5 1445 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  LA207669  Frangula californica subsp. tomentella C. B. Wolf; 1927-11-5 1444 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  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
  SBBG27500  Frangula californica subsp. tomentella C. B. Wolf 1927-11-5 1444 Yuba Browns Valley to Smartsville Rd, along left bank of Yuba River, near bridge 152 Comment
  SD22796  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
  UCD112801  Frangula californica subsp. tomentella Collector unknown 1925-5-17 1783 Yuba Marysville Buttes. 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
  CHSC117655  Frangula purshiana subsp. purshiana Lowell Ahart 2016-9-9 21346 Yuba On the west 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
  JEPS127130  Frangula purshiana subsp. purshiana Lowell Ahart 2016-9-9 21346 Yuba After crossing Slate Creek on Old County Road to Scales, take first road to the right and go about 1/2 mile near Stowman Ravine, about 3 miles (air) southwest of Poverty Hill mine, about 8 miles (air) southwest of La Porte. Comment
  CHSC69149  Frangula rubra Lowell Ahart 1997-8-7 7822 Yuba On the east side of the dirt road, near an unnamed stream, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  CHSC113643  Frangula rubra subsp. obtusissima L. P. Janeway 2014-5-12 11252 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  CAS-BOT-BC55739  Frangula rubra subsp. rubra Lowell Ahart 1976-5-6 s.n. Yuba Near the Brownsville Dump, Brownsville 457 Comment
  HSC100760  Frangula rubra subsp. rubra L. P. Janeway 2011-8-10 10639 Yuba Plumas National Forest, SE side of Rd. 19N04, 1.3 km N of Challenge-La Porte Rd.; 2.2 air km NE of Challenge. 312 Comment
  UCD122071  Fraxinus latifolia Kathleen Keliher 1975-5-31 128 Yuba Along Dry Creek near Lower Cook Road, near boundary of K-4 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC205976  Fremontodendron californicum Wayne Roderick 1981-5-24 s.n. Yuba Near Dobbins Comment
  CHSC43325  Fremontodendron californicum Lowell Ahart 1976-5-6 1093 Yuba Near the Brownsville Dump, along Ponderosa Way, south-west of Brownsville. 457 Comment
  UCD73922  Fremontodendron californicum G. Ledyard Stebbins 1966-5-22 6417 Yuba Dobbins Dump. Comment
  UCD80804  Fremontodendron californicum CNPS SN Foothill Team 2005-5-31 SNFN 0329 c Yuba BLM, Ponderosa Landfill. 699 Comment
  CHSC13474  Fritillaria eastwoodiae J. H. Sneed 1972-4-25 2 Yuba Found near shoulder of Forbestown road leading to Woodleaf, about 3 mi from Forbestown. Comment
  CHSC33890  Fritillaria eastwoodiae M. S. Taylor 1981-4-15 3537 Yuba N side of Forbestown-Woodleaf Rd, ca. 3/4 mi e of its jct with Forbestown Rd, ca. 2 mi w of Woodleaf. 853 Comment
  JEPS120942  Fritillaria eastwoodiae Lowell Ahart 2013-4-23 18566 Yuba Along Costa Creek, about 100 yards E of where the paved road crosses Costa Creek, about 2.5 air miles SE of the Forbestown Store. Comment
  CAS-BOT-BC506160  Fritillaria micrantha Volney Rattan 1880-1-1 s.n. Yuba Brownsville Comment
  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
  SEINET10469565  Fritillaria micrantha Mary Susan Taylor, L. Hanson 1981-4-15 Taylor 3539 Yuba T19N R6E center sec 34, Rackerby quad. In Brownsville along LaPorte-Quincy Rd (Marysville-LaPorte Rd), near its jct with Rackerby Rd about a block. Yellow Pine Forest; 2300 ft. 701 Comment
  SJSU8740  Fritillaria micrantha N. A. Hopkins 1980-4-12 966 Yuba Abernathy (Abranathy) Rd near its intersection with Forbestown-Woodleaf Rd c. 2-3 mi E of Forbestown 838 Comment
  SJSU8742  Fritillaria micrantha N. A. Hopkins 1980-4-12 967 Yuba Abernathy (Abranathy) Rd 100 yds from its intersection with Forbestown-Woodleaf Rd c. 2-3 mi E of Forbestown 838 Comment
  UCD139694  Fritillaria micrantha Kathleen Keliher 1975-5-6 94 Yuba 200 feet from duck pond, between houses, near Frenchtown Road and New York Road. 304 Comment
  CAS-BOT-BC130402  Fritillaria pinetorum Lowell Ahart 1976-4-15 s.n. Yuba Near the Brownsville Dump, Brownsville Comment
  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
  SEINET7073614  Fritillaria recurva A. G. Vestal 1955-5-21 s.n. Yuba About 20.5 miles east of Oroville on Challang Cuttoff Road. UTM Zone 10, 650291mE, 4373240mN. Coordinate datum: NAD27. Comment
  UCD80743  Galium bolanderi CNPS SN Foothill Team 2005-5-31 SNFN 0330 d Yuba BLM, Ponderosa Landfill, near the southeast corner of the parcel (east of the defunct landfill). 685 Comment
  CHSC108192  Galium divaricatum Lowell Ahart 2011-6-7 17412 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  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
  CHSC47478  Galium parisiense Lowell Ahart 1981-6-13 2845 Yuba Along the new gravel road, on the north-east side of McGinn Hill, east of Loma Rica. 304 Comment
  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
  JEPS115066  Galium sparsiflorum subsp. glabrius Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14499 Yuba Open meadow, about 20 yards east of the dirt road, Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills 1015 Comment
  CHSC97752  Galium trifidum Lowell Ahart 2007-11-1 14529 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  CHSC69413  Gamochaeta argyrinea Lowell Ahart 1997-8-30 7880 Yuba On the west side of the dirt road, near a road culvert, about one mile (air) south of Woodleaf. 944 Comment
  CHSC97447  Gastridium phleoides Lowell Ahart 2007-5-12 13827 Yuba Dry bare red soil, about 30 feet south of a culvert, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CAS-BOT-BC278716  Gastridium ventricosum Lowell Ahart 1980-6-19 2396 Yuba 3 miles south-east of Challenge 800 Comment
  JEPS104198  Gastridium ventricosum Lowell Ahart 2003-6-29 10319 Yuba Along a wash, on the e side of Ponderosa Way, ca 1 1/2 mi n of La Porte Rd, ca 1 mi (air) w of Brownsville. 701 Comment
  JEPS113755  Gastridium ventricosum Lowell Ahart 2007-5-12 13827 Yuba Dry bare red soil, about 30 feet south of a culvert, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC97119  Gaultheria ovatifolia Lowell Ahart 2007-8-7 14425 Yuba South of Hampshire Creek Meadow, graded edges of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  CHSC108310  Geranium dissectum Lowell Ahart 2011-6-7 17403 Yuba West of a willow shurb, just south of the huge gravel bar, along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC97476  Geranium dissectum Lowell Ahart 2007-5-14 13887 Yuba 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS118297  Geranium dissectum Lowell Ahart 2011-6-7 17403 Yuba West of a willow shurb, just south of the huge gravel bar, along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCD37890  Geranium dissectum Beecher Crampton 1962-4-24 6316 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  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
  UCD37857  Geranium molle Beecher Crampton 1962-4-24 6263 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD103447  Geranium molle Barbara Yungert 1974-4-25 79 Yuba Near four wheel drive road, SC-14 project area, Sierra Foothill Field Station. Comment
  UCD117956  Gilia tricolor Kathleen Keliher 1975-4-21 67 Yuba one quarter of a mile from dirt road, 70 meters from Yuba River, F-2 project area, Sierra Foothill Field Station. 152 Comment
  UCD72432  Githopsis specularioides Kathleen Keliher 1975-5-3 86 Yuba Sierra Foothill Field Station, Higher Cook Road, K 1-11 project area. 228 Comment
  CHSC113177  Glinus lotoides Lowell Ahart 2013-11-30 19297 Yuba On the north side of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  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
  CHSC76311  Glyceria declinata Lowell Ahart 1999-9-17 8248 Yuba In a rice field, Sam Shintaffer Farm, south of Woodruff Lane, south of Mathews Road, 100 yards south of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  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
  CHSC44569  Glyceria occidentalis Lowell Ahart 1978-4-14 1640 Yuba Irrigation canal, west of Kimball Lane and on the property of Shintaffer Farms Inc. 30 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
  JEPS103371  Gnaphalium palustre Lowell Ahart 2002-10-9 9952 Yuba Along Lost Creek, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS113625  Gnaphalium palustre Lowell Ahart 2007-5-12 13769 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC69459  Goodyera oblongifolia Lowell Ahart 1997-8-7 7831 Yuba ON the east side of the dirt road, on the east side of the bridge across Indian Creek, about 3 miles (air) east of Challenge. 762 Comment
  JEPS125850  Goodyera oblongifolia Dean W. Taylor 2001-7-31 17851 Yuba Rock Creek canyon on the Yuba County side, ca 2 air miles SW of Union Hill. Comment
  CHSC97500  Gratiola ebracteata Lowell Ahart 2007-5-14 13876 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCD147085  Gratiola ebracteata Chuck Hughes; Juliette Robinson 2013-5-2 370 Yuba Northwest margin of Camp Far West Reservoir. 93 Comment
  SEINET7072721  Grindelia camporum A. G. Vestal 1963-5-7 s.n. Yuba About 3.5 miles north of Wheatland on Jasper Lane. UTM Zone 10, 636590E, 4323573mN. Coordinate datum: NAD 27. Comment
  CAS-BOT-BC314671  Grindelia hirsutula Lewis S. Rose 1971-6-10 71071 Yuba Yuba River, Parks Bar W of Smartville 60 Comment
  CHSC115895  Grindelia hirsutula var. davyi L. P. Janeway 2015-6-29 11787 Yuba Northern High Sierra Nevada. Plumas National Forest; Weiss Hill Meadow, a large meadow 600 air-km east-southeast of junction of Weiss Hill Road and Forbestown Road; at the head of a minor northwestern tributary to New York Creek. 853 Comment
  CDA31981  Hainardia cylindrica L. Ahart 2007-5-12 13825 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. Comment
  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
  CHSC110462  Hastingsia alba L. P. Janeway 2013-7-24 11187 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow near headwaters of a northeastern tributary to Hampshire Creek, 1.8 km north of North Yuba River and 1.0 km east-northeast of Hampshire Creek Meadow. 1102 Comment
  CHSC108222  Hedypnois cretica Lowell Ahart 2011-6-7 17377 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  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
  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
  UCD132677  Hedypnois cretica Barbara Yungert 1974-5-8 133 Yuba along four wheel drive road, north side of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  JEPS118299  Hedypnois rhagadioloides Lowell Ahart 2011-6-7 17377 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  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
  CAS-BOT-BC314787  Helianthella californica var. nevadensis Lloyd W. Swift 1932-5-10 55 Yuba Near Dobbins, Mt. Misery, Plumas Forest 762 Comment
  CHSC81761  Helianthus annuus Lowell Ahart 2001-11-2 9395 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 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
  CDA7043  Hemizonia fitchii A. C. Browne 1951-5-15 Yuba Marysville. 0 Comment
  RSA7607  Hemizonia luzulifolia subsp. rudis C. B. Wolf, B. D. Stark 1933-09 5504 Yuba Marysville airport, 2 miles N of Marysville; Sacramento Valley. 15 Comment
  CHSC97673  Hesperevax caulescens Lowell Ahart 2007-5-12 13775 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113480 Image available Hesperevax caulescens Lowell Ahart 2007-5-12 13775 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  LA6491  Hesperocyparis macnabiana Carl Epling; June 1938 sn Yuba near Brownsville Comment
  SD40674  Hesperocyparis macnabiana Carl B. Wolf, E. R. Johnson 1934-10-3 Yuba Sierra Nevada Foothills, Texas Hill, about 2 miles west of Dobbins 550 Comment
  CHSC47433  Hesperolinon micranthum Lowell Ahart 1976-5-27 1132 Yuba Along Ponderosa Way, near the Brownsville Dump, south-west of Brownsville. 548 Comment
  CHSC47434  Hesperolinon micranthum Lowell Ahart 1975-6-30 826 Yuba Growing on dry bare soil along the edge of La Porte Road, about 3 miles north-east of Rackerby. 487 Comment
  CHSC76315  Heteranthera limosa Lowell Ahart 1999-9-17 8240 Yuba In a rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  JEPS95798  Heteranthera limosa Lowell Ahart 1999-9-17 8240 Yuba about 5 miles (air) northeast of Marysville; ; south of Woodruff Lane; just east of Mathews Road; east of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  CHSC76316  Heteranthera rotundifolia Lowell Ahart 1999-9-17 8241 Yuba In a rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  JEPS95796  Heteranthera rotundifolia Lowell Ahart 1999-9-17 8241 Yuba about 5 miles (air) northeast of Marysville; ; south of Woodruff Lane; just east of Mathews Road; east of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  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
  CHSC113680  Heteromeles arbutifolia L. P. Janeway 2014-6-24 11419 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 2.1 air km south-southwest of Oregon Peak, 0.2 km north of Marysville Road. 762 Comment
  UC726312  Heterotheca grandiflora A. A. Heller 1924-10-25 13833 Yuba Wheatland Comment
  CAS-BOT-BC310275  Heterotheca grandiflora Gordon H. True 1970-3-17 5204 Yuba Camp Far West dam on Bear River ca. 5 mi. E of Wheatland 56 Comment
  CAS-BOT-BC310276  Heterotheca grandiflora Lowell Ahart 1977-8-31 s.n. Yuba Sutter Buttes Area. About 2 miles northeast of Marysville, near Jack Slough on the Sam Shintaffer Farm 30 Comment
  RSA0075913  Heterotheca grandiflora A. A. Heller 1924-10-25 13833 Yuba Wheatland. Comment
  CAS-BOT-BC420454  Heuchera micrantha var. erubescens Rimo Bacigalupi 1927-7-2 1586 Yuba highway to Downceville about 8 miles n.e. of Comptonville Comment
  RSA0038272  Hierochloe occidentalis J. M. Grant 1930-05 s.n. Yuba Marysville. Comment
  CAS-BOT-BC55318  Hirschfeldia incana Lowell Ahart 1974-5-1 s.n. Yuba About 5 miles east of Loma Rica. 400 Comment
  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
  CHSC63210  Holcus lanatus Lowell Ahart 1994-6-27 7393 Yuba Along the north side of a stream, east of the logging road, east of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  JEPS113805  Holcus lanatus Lowell Ahart 2007-6-22 14220 Yuba Near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS118359  Holcus lanatus Lowell Ahart 2011-6-7 17427 Yuba East of a willow shurb, just south of the huge gravel bar, along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCD168077  Holcus lanatus James Neilson 1961-10-16 459 Yuba 3 mile east Brown's Valley Rd. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UC1128011  Holodiscus discolor G. Burks 1933-7-26 13 Yuba 1 mi s of Camptonville (Tahoe National Forest); Tahoe National Forest 822 Comment
  CAS-BOT-BC311750  Holozonia filipes Lewis S. Rose 1969-6-26 69060 Yuba 5 mi. s. of Smartville, Camp Beale Road 182 Comment
  JEPS59966  Holozonia filipes Lewis S. Rose 1969-6-26 69060 Yuba 5 mi s Smartville (Camp Beale Road) 182 Comment
  UC1777687  Holozonia filipes Robert E. Preston 1997-10-30 1059 Yuba 300 ft N of Doolittle Dr. Hutchinson Creek; Beale Air Force Base Comment
  RSA726566  Hordeum marinum subsp. gussoneanum L. Ahart 2007-5-14 13860 Yuba About 1/2 mile north of Fruitland Road, about 13.5 miles (air) northeast of Marysville. 29 Comment
  SACT001354  Hordeum marinum subsp. gussoneanum Michael Baad 1983-7-11 Yuba Wet grazed meadow. 1828.0 Comment
  UCD85831  Hordeum marinum subsp. gussoneanum Beecher Crampton 1957-6-5 4129 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  UCD85846  Hordeum marinum subsp. gussoneanum Beecher Crampton 1965-6-17 7370 Yuba Ca. 3/4 mile north of Stanfield Hill, Willow Glen Creek. Comment
  UCD86150  Hordeum murinum subsp. glaucum Beecher Crampton 1962-4-17 6172 Yuba Ca. 2 miles south of Marysville. Comment
  UCR258224  Hordeum murinum subsp. glaucum George K. Helmkamp, Amy Barnes 2013-3-28 20253 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  UCD86143  Hordeum murinum subsp. leporinum Beecher Crampton 1957-6-5 4164 a Yuba In front of old Stewart and Bros. and Wells Fargo Store. Site of Timtuctoo. Comment
  UCD86154  Hordeum murinum subsp. leporinum Beecher Crampton 1962-4-24 6250 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCD80560  Hordeum murinum subsp. murinum CNPS SN Foothill Team 2005-3-17 SNFN 0019 c Yuba CDFG Spenceville Wildlife Area. From CA Highway 20 east, right on Smartville Road to Spenceville Wildlife Area. Plot is accessible from 1st Fish and Game gate on E side of Spenceville Road, Horsetrail (N/S). Location is ca. 2/3 mile along horse trail, then SW between trail and Smartville Road. 195 Comment
  CHSC84161  Horkelia californica subsp. dissita Lowell Ahart 2003-6-29 10318 Yuba Along a wash, on the east side of Ponderosa Way, about 1 1/2 miles north of La Porte Road, about 1 mile (air) west of Brownsville. 701 Comment
  UCD113564  Horkelia tridentata W. R. Powell 1968-5-15 1493 Yuba On Fountain House Road, 2 miles northeast of Dobbins. 792 Comment
  CHSC115286  Horkelia tridentata var. tridentata Lowell Ahart 2015-4-30 20126 Yuba Open forest, on the north side of the gravel road, about 30 yards east of the gate, about 3/4 mile (air) southeast of Woodleaf. 948 Comment
  NY15467  Hosackia incana J. M. Bigelow 1853-1 s.n. Yuba South Yuba 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
  SD97027  Hydrilla verticillata G. D. Barbe, T. C. Fuller 1976-11-1 2231 Yuba Southeast edge of freshwater Ellis Lake, to 4I(c) feet deep, 9th and B Streets, Marysville. Comment
  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
  CDA37683  Hydrilla verticillata Breckenridge/O Connell 2004-5-17 s.n. Yuba Near Oregon House. 0 Comment
  SBBG80277  Hydrilla verticillata K. Miller 1976-11-24 Yuba Ellis Lake, 9th and B St, Marysville Comment
  UCD138137  Hydrilla verticillata T. C. Fuller 1976-11-1 2231 Yuba Ellis Lake, 9th and B Streets, Marysville. Comment
  UCD138152  Hydrilla verticillata Richard Yeo 1976-11-1 s.n. Yuba Marysville, Lake Ellis, 9th and B street. Comment
  CHSC116587  Hypericum anagalloides L. P. Janeway 2015-7-1 11795 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
  CHSC78149  Hypericum anagalloides Lowell Ahart 2000-6-11 8462 Yuba On the sides of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  JEPS104123  Hypericum anagalloides Lowell Ahart 2003-7-6 10350 Yuba In a meadow, e of the power line, ca 50 yd nw of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  JEPS98696  Hypericum anagalloides Lowell Ahart 2000-6-11 8462 Yuba 6 mi (air) S of Smartville (sides of a deep wash, a N branch of Dry Creek, 2 mi N of int. of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  SEINET13710865  Hypericum anagalloides Lowell William Ahart, Lowell William Ahart 2003-1 10350 Yuba 5 Mi. N of Dobbins (39 Deg 26'11.7"N, 121 Deg 12'07.3'W) 2746 Ft. 837 Comment
  SEINET3450954  Hypericum anagalloides Unknown 2003-7-6 10350 Yuba Dobbins, Dobbins, about 5 air miles north, east of the power line, about 50 yards west of Fountain Hill Road 830 Comment
  CDA36536  Hypericum concinnum Crane 42197 Yuba Marysville 0 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
  JEPS104351  Hypericum formosum var. scouleri Lowell Ahart 2003-7-6 10351 Yuba In a meadow, e of the power line, ca 50 yd w of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  CDA5083  Hypericum perforatum L. Ahart 2002-6-3 9682 Yuba On the north side of a small drainage, west of a large open meadow like area, about 150 yards west of where a few people park along Long Ravine Road, about one mile southeast of the intersection of Long Ravine Road and Camp Far West Road, northeast of Camp Far West Reservoir. Comment
  CHSC84218  Hypericum perforatum Lowell Ahart 2003-7-6 10352 Yuba Near a meadow, east of the power line, about 50 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  SEINET3449128  Hypericum perforatum Unknown 2003-7-6 10352 Yuba Dobbins, Dobbins, about 5 air miles north, east of the power line, about 50 yards west of Fountain Hill Road 830 Comment
  UCR231336  Hypericum perforatum George K. Helmkamp, E. A. Helmkamp 2011-5-6 17181 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.3 mile north of the junction with Hokan Lane, vicinity of Camp Far West Reservoir 105 Comment
  CAS-BOT-BC401215  Hypericum perforatum Lowell Ahart 1979-6-25 s.n. Yuba 2 miles east of Challenge 700 Comment
  CAS-BOT-BC401216  Hypericum perforatum G. Earle Kelley 1920-10-31 s.n. Yuba Los Verjils Comment
  CDA37877  Hypericum perforatum Dirks 1977-8-31 PDR# 366309 Yuba Marysville. 0 Comment
  UCD110401  Hypericum perforatum subsp. perforatum Barbara Yungert 1974-5-21 168 Yuba North of Yuba River, F-3 project area, Sierra Foothill Field Station. Comment
  CHSC108203  Hypochaeris glabra Lowell Ahart 2011-6-7 17378 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCD37851  Hypochaeris glabra Beecher Crampton 1962-4-24 6255 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  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
  UCD110815  Iris Christopher Mallek 2008-1 s.n. Yuba Daken Flat. 675 Comment
  CAS-BOT-BC133615  Iris hartwegii Peter H. Raven 1953-5-9 5471 Yuba 1 mile from Brownsville on road to Challenge Comment
  RSA135878  Iris hartwegii Lee W. Lenz, E. K. Balls 1956-6-20 21851 Yuba 0.5 mile west of Sierra-Yuba County line along State highway 49 915 Comment
  CHSC112858  Iris hartwegii subsp. hartwegii L. P. Janeway 2014-4-24 11236 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  CHSC59575  Iris macrosiphon H. E. Mac Lennan 1992-4-5 10 Yuba 20 air miles se of Oroville. 533 Comment
  UC571183  Iris macrosiphon Herbert L. Mason 1927-5-11 3724 Yuba near Dobbins 457 Comment
  JEPS106166  Isoetes nuttallii Lowell Ahart 2004-4-27 10750 Yuba Along a very small drainage, about 100 yards northwest of where the drainage crosses the road, about 1/2 mile (air) southeast of Woodleaf 950 Comment
  JEPS95311  Isoetes nuttallii Lowell Ahart 1994-6-27 7372 Yuba 4 mi NE of Strawberry Valley (center of Schwartz Meadow, E side of La Porte Road) 1219 Comment
  CAS-BOT-BC69895  Isoetes nuttallii Lowell Ahart 1980-6-19 2412 Yuba 4.5 mi. e. of Challenge. 900 Comment
  CAS-BOT-BC69897  Isoetes nuttallii Alice Eastwood 1921-5-22 10527 Yuba Los Vergils. Comment
  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
  CAS-BOT-BC69840  Isoetes orcuttii Gordon H. True; J. T. Howell 1967-6-13 3551 Yuba Ca. 5 mi. e. of Wheatland and 1 mi. n. of Bear River. 54 Comment
  HSC97767  Isolepis cernua L. Ahart 2000-5-25 8399 Yuba Deep wash, N branch of Dry Creek, 100 yds. W of Smartville Rd., 2 mi. N of intersection of Waldo Rd. and Smartville Rd., 6 mi. S of Smartville 146 Comment
  SD130997  Isolepis setacea Lowell Ahart 1980-6-19 2394 Yuba 3 miles southeast of Challenge 800 Comment
  SEINET3441876  Isolepis setacea Unknown 2003-7-6 10363 Yuba Dobbins, Dobbins, about 5 air miles north, east of the power line, about 60 yards northwest of Fountain Hill Road 830 Comment
  UCD49884  Isolepis setacea Beecher Crampton 1966-6-14 7752 Yuba 1 mile east of Brownsville. 731 Comment
  CAS-BOT-BC112654  Isolepis setacea Beecher Crampton 1966-6-14 7752 Yuba 1 mile east of Brownsville, La Porte Road. Comment
  CAS-BOT-BC340264  Jensia rammii Lowell Ahart 2007-5-12 13772 Yuba About 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road about 13 miles (air) northeast of Marysville 28 Comment
  CAS-BOT-BC340266  Jensia rammii 1930-4-12 s.n. Yuba Texas hill road Comment
  JEPS113472  Jensia rammii Lowell Ahart 2007-5-12 13772 Yuba Dry bare red soil, bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UCD38714  Jensia rammii Beecher Crampton 1957-6-5 4154 Yuba 1.3 miles east Oregon House Store. Comment
  CAS-BOT-BC340265  Jensia rammii Peter H. Raven 1953-5-9 5482 Yuba 2 miles from Brownsville on road to Dobbins Comment
  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
  CHSC116036  Juncus acuminatus Lowell Ahart 2015-11-19 20675 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
  HSC97069  Juncus acuminatus L. Ahart 2002-10-9 9955 Yuba High water line of Sly Creek Reservoir about 1/8mi SW of Day Camp 1073 Comment
  JEPS103550  Juncus acuminatus Lowell Ahart 2002-10-9 9955 Yuba Along a small stream, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS124264  Juncus acuminatus Lowell Ahart 2015-11-19 20675 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  JEPS66899  Juncus acuminatus W. L. Jepson 1934-7-29 16762 Yuba Smartsville Comment
  JEPS95937  Juncus acuminatus Lowell Ahart 1999-9-17 8257 Yuba Sam Shintaffer Farm; on the west side of Kimball Lane; near the intersection of Kimball Lane and Hallwood Blvd.; about 3/4 mile south of Sam Shintaffer's rice dryer; about 4 1/4 miles (air) northeast of Marysville 22 Comment
  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
  JEPS118341  Juncus arcticus var. balticus Lowell Ahart 2011-5-30 17358 Yuba About 20 yards north of the cross fence, on the west side of the fence along Fruitland Road, about 41/2 miles (air) southwest of Loma Rica 34 Comment
  CHSC47519  Juncus articulatus Lowell Ahart 1980-6-19 2395 Yuba Along Peterson Ridge Road, about 3 miles south-east of Challenge. 762 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
  CHSC84166  Juncus articulatus Lowell Ahart 2003-7-2 10345 Yuba In a small stream, on the west side of Fountain Hill Road, about 3 miles south of Oregon Hill Road, about 1/2 mile (air) north of Fountain House Hill, about 3 miles (air) northeast of Dobbins. 841 Comment
  SEINET3450943  Juncus articulatus Unknown 2003-7-2 10345 Yuba Dobbins, 3 air miles northeast, 0.5 miles north of Fountain House Hill, about 3 miles south of Oregon Hill Road, on the west side of Fountain Hill Road. 840 Comment
  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
  CHSC97635  Juncus bufonius var. bufonius Lowell Ahart 2007-5-12 13818 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  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
  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
  CHSC47544  Juncus covillei Lowell Ahart 1980-8-12 2546 Yuba On a large gravel bar that is formed from a debris dam across Slate Creek, a little west of where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  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
  JEPS113712  Juncus covillei Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14294 Yuba On the south side of Hampshire Creek, just east of the cement dam on Hampshire Creek, east of a large wet meadow, about 100 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills 1021 Comment
  UCD33114  Juncus covillei Beecher Crampton 1966-6-14 7759 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  UCR118906  Juncus covillei Beecher Crampton 1966-6-14 7759 Yuba Central Sierra Nevada foothills, 1 Mile east of Brownsville on La Porte Road. 732 Comment
  RSA653951  Juncus covillei Beecher Crampton 1966-6-14 7759 Yuba 1 mile east of Brownsville on La Porte road. 732 Comment
  CHSC83440  Juncus cyperoides Virginia Dains 1996-7-30 Yuba East of forest road 20N25 in a man-made meadow/marsh. One location along the easternmost channel of Hampshire Creek. 1021 Comment
  CHSC97457  Juncus cyperoides Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-9-18 14496 Yuba Along a small stream, about 100 yards northwest of the dirt road, north part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills. 1015 Comment
  CHSC97460  Juncus cyperoides Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-9-18 14498 Yuba In a small meadow, about 50 yards northwest of the dirt road, north part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills. 1015 Comment
  JEPS113876  Juncus cyperoides Lowell Ahart 2007-8-7 14420 Yuba Along a small stream, about 100 yards northwest of the dirt road, north part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills 1021 Comment
  UCR259341  Juncus cyperoides Glenn L. Clifton 2001-8-20 37290 Yuba Hampshire Creek 1027 Comment
  CHSC113779  Juncus cyperoides Barbara L. Wilson; Lowell Ahart, Lawrence Janeway, Peter F. Zika 2011-8-5 16772 Yuba Plumas National Forest; Sacramento Box Road, a closed road giving access to Hampshire Meadow, at the point where the stream cuts the road; UTM 10 659976 east, 4377730 north, +/- 62 feet. 1033 Comment
  CHSC84203  Juncus dubius Lowell Ahart 2003-7-2 10346 Yuba In a small stream, on the west side of Fountain Hill Road, about 3 miles south of Oregon Hill Road, about 1/2 mile (air) north of Fountain House Hill, about 3 miles (air) northeast of Dobbins. 841 Comment
  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
  CHSC97076  Juncus dubius Lowell Ahart 2007-8-7 14423 Yuba In shallow water, open meadow, on the southeast part of Hampshire Creek Meadow, about 50 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS104082  Juncus dubius Lowell Ahart 2003-7-2 10346 Yuba In a small stream, on the w side of Fountain Hill Rd, ca 3 mi south of Oregon Hill Rd, ca 1/2 mi (air) n of Fountain House Hill, ca 3 mi (air) ne of Dobbins. 841 Comment
  CHSC106633  Juncus effusus subsp. effusus Peter F. Zika 2010-6-22 24976 Yuba Northern Sierra Nevada Foothills (n SNF); Spring Valley Road NE of Browns Valley Ridge. 90 Comment
  CHSC112068  Juncus effusus subsp. effusus L. P. Janeway 2014-8-26 11572 Yuba Northern High Sierra Nevada. Plumas National Forest; about 50 m east of Oregon Hill Road, about 1 km south of Little Oregon Creek; 8 air-km southeast of Challenge. 668 Comment
  CHSC96868  Juncus effusus subsp. effusus Lowell Ahart 2007-6-30 14227 Yuba Bottom of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  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
  JEPS113831  Juncus effusus subsp. pacificus Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14300 Yuba About 30 yards east of a poor dirt road, about 1 1/2 miles (air) northeast of Clipper Mills 1045 Comment
  JEPS113846  Juncus effusus subsp. pacificus Lowell Ahart 2007-8-7 14406 Yuba Hampshire Creek Meadow, about 80 yards west of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  CHSC47552  Juncus ensifolius Lowell Ahart 1980-8-12 2539 Yuba On a large gravel bar in Slate Creek, west of where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  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
  UCR179303  Juncus ensifolius George K. Helmkamp, E. A. Helmkamp 2006-10-10 11527 Yuba Northern Sierra Nevada Mountains Foothills, along Calif. Hwy 49 just north of the Nevada County line at the Middle Yuba River bridge 451 Comment
  CHSC97111  Juncus laccatus Lowell Ahart 2007-8-7 14414 Yuba On the east side of a small pond, on the west side of the dirt road, Hampshire Creek Meadow, about 5 yards west of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS113845  Juncus laccatus Lowell Ahart 2007-8-7 14414 Yuba On the east side of a small pond, on the west side of the dirt road, Hampshire Creek Meadow, about 5 yards west of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  CHSC107309  Juncus occidentalis L. P. Janeway 2011-7-5 10493 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 480 m northeast of Marysville Road. Near top of the saddle, springtime wet meadow, along shallow depression where a little water pools while draining from meadow. 756 Comment
  CHSC78332  Juncus orthophyllus Lowell Ahart 2000-6-23 8504 Yuba On the west side of a dirt road, about 100 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  JEPS98336  Juncus orthophyllus Lowell Ahart 2000-6-23 8504 A Yuba 3 mi NE of Strawberry Valley (bog in a small meadow, 200 yds E of the meadow along La Porte Road, 50 yds N of Scales Road) 1219 Comment
  JEPS113903  Juncus oxymeris Stephanie Chen 2007-7-17 Yuba Northern Sierra Nevada Foothills; Lower slope on W side of Browns Valley Ridge, about 1/2 mi E of Loma Rica Road and about 3 1/4 mi SW of Loma Rica. 59 Comment
  CHSC47571  Juncus tenuis Lowell Ahart 1980-8-12 2538 Yuba Slate Creek, west of where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  CHSC83032  Juncus tenuis Lowell Ahart 2002-10-9 9951 Yuba Area east of a spring, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS103390  Juncus tenuis Lowell Ahart 2002-10-9 9951 Yuba Area E of a spring, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS113858  Juncus tenuis Lowell Ahart 2007-8-7 14428 Yuba South of Hampshire Creek Meadow, graded edges of the dirt road, about 1 mile (air) east of Clipper Mills. On the east side of a small pond, on the west side of the dirt road 1021 Comment
  RSA726438  Juncus tenuis L. Ahart 2007-11-1 14539 Yuba About 1 mile northwest of Old Camptonville Road, about 1.5 miles (air) west of Camptonville. 627 Comment
  CHSC97490  Juncus uncialis Lowell Ahart 2007-5-14 13852 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
  CHSC47579  Juncus xiphioides Lowell Ahart 1979-6-25 1954 Yuba Along the gutter of Peterson Ridge Road, about 2 miles east of Challenge. 640 Comment
  CAS-BOT-BC235667  Keckiella breviflora var. glabrisepala David D. Keck 1930-7-25 984 Yuba Bullards Bar Reservoir 450 Comment
  NY790162  Keckiella breviflora var. glabrisepala D. D. Keck 1930-7-25 984 Yuba Bullards Bar Reservoir 457.2 Comment
  CAS-BOT-BC237820  Keckiella lemmonii Lowell Ahart 1980-7-25 2484 Yuba Near Slate Creek 1200 Comment
  JEPS113450  Kickxia elatine Lowell Ahart 2007-6-22 14214 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
  CAS-BOT-BC180848  Kochia scoparia Lemmel Jr. Osborne 1948-9-5 s.n. Yuba Near Marysville Comment
  UCD85744  Koeleria macrantha Beecher Crampton 1957-6-5 4141 Yuba 1 mile east of Stanfield Hill. Comment
  CHSC97775  Lactuca serriola Lowell Ahart 2007-11-1 14546 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  JEPS122455  Lactuca serriola L. P. Janeway 2014-11-6 11581 Yuba Northern High Sierra Nevada. Plumas National Forest; along Oregon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km north-west of Summit Hill; slope above Burnt Bridge Creek. Quad: Challenge 7.5'. Comment
  UCR201939  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2008-10-6 14202 Yuba Sacramento Valley, junction of CA-65 and Ostrom No. 3 Road, southeast of Olivehurst 24 Comment
  CHSC112371  Lactuca virosa L. P. Janeway 2014-6-25 11420 Yuba Northern High Sierra Nevada. Plumas National Forest; Along Oregon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km northwest of Summit Hill; slope above Burnt Bridge Creek. 792 Comment
  CHSC112372  Lactuca virosa L. P. Janeway 2014-6-25 11420 Yuba Northern High Sierra Nevada. Plumas National Forest; Along Oregon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km northwest of Summit Hill; slope above Burnt Bridge Creek. 792 Comment
  CHSC112859  Lactuca virosa L. P. Janeway 2014-6-26 11425 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  CHSC112860  Lactuca virosa L. P. Janeway 2014-6-26 11425 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  JEPS121747  Lactuca virosa L. P. Janeway 2014-6-26 11425 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. Comment
  CAS-BOT-BC337963  Lasthenia californica Irene Creps 1955-4-9 18 Yuba Five miles Northeast of Wheatland Comment
  JEPS113621  Lasthenia fremontii Lowell Ahart 2007-5-12 13771 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UCSC008611  Lasthenia fremontii Lowell Ahart 2007-5-12 13771 Yuba About 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  POM264473  Lasthenia fremontii Annetta Carter 1628 Yuba 4.3 miles SE of Marysville on road to Spenceville. 30 Comment
  SBBG28004  Lasthenia fremontii A. Carter 1940-4-21 1528 Yuba 4.3 mi SE of Maryville rd to Spenceville 30 Comment
  CAS-BOT-BC355510  Lasthenia glaberrima Carl B. Wolf 1937-5-18 8735 Yuba Sacramento Valley, 2 mi. so. of Marysville. 18 Comment
  UC718224  Lasthenia glaberrima Carl B. Wolf 1937-5-18 8735 Yuba 2 mi s Marysville; Sacramento Valley 18 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
  UCD106457  Lathyrus sulphureus W. R. Powell 1967-6-13 1457 Yuba 1 1/2 miles northeast of Challenge. Comment
  UCR196919  Lathyrus sulphureus George K. Helmkamp, E. A. Helmkamp 2008-5-20 13491 Yuba Foothills, northern Sierra Nevada Mountains, Camptonville, at the junction of Henness Pass Road and CA-49 823 Comment
  JEPS119473  Layia chrysanthemoides George K. Helmkamp with E. A. Helmkamp 2011-4-10 17165 Yuba Sacramento Valley: along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland Comment
  CAS-BOT-BC321751  Layia fremontii Gordon H. True 1963-4-17 1184 Yuba About 10 miles E of Marysville, on Marysville-Grass Valley Hys. 30 Comment
  CAS-BOT-BC321752  Layia fremontii Bruce G. Baldwin 1988-3-21 687 Yuba 3.3 miles W of junction with County Rd E21 (road to Collins Lake, Bullards Bar Reservoir) along Calif. State Hwy 20. Comment
  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
  CHSC116267  Leersia oryzoides Lowell ahart 2015-11-19 20682 Yuba 100 yards or more north of the spillway area, below the high water line, west side of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  CHSC84352  Lemna minuta Lowell Ahart 2003-9-22 10615 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
  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
  CHSC116271  Leontodon saxatilis subsp. longirostris Lowell Ahart 2015-11-19 20669 Yuba 100 yards or more north of spillway area, below high water line, west of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  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
  JEPS113390  Leontodon saxatilis subsp. longirostris Lowell Ahart 2007-5-14 13874 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville Comment
  JEPS124269  Leontodon saxatilis subsp. longirostris Lowell Ahart 2015-11-19 20669 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  UCR206944  Leontodon taraxacoides George K. Helmkamp, E. A. Helmkamp 2009-5-28 14822 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 Comment
  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
  RSA726962  Leontodon taraxacoides subsp. longirostris L. Ahart 2007-5-14 13874 Yuba About 13 miles (air) northeast of Marysville. 28 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
  UCD115459  Lepidium draba Michael A. Vincent 1999-6-12 8637 Yuba Along canal parallel to Rt. 20 at junction with Feather River Boulevard, 0.4 mile north of Sutter county line, Marysville. Comment
  CHSC3319  Lepidium nitidum M. Gregg 1966-3-13 40 Yuba Northeast of Marysville, on the Slaughter House Rd. 1/4 mile from the levee. Comment
  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
  CAS-BOT-BC273946  Leptochloa fusca subsp. fascicularis Lowell Ahart 1977-8-31 1536 Yuba 2 miles north-east of Marysville 30 Comment
  UCD118636  Leptosiphon bicolor Barbara Yungert 1974-4-12 26 Yuba north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UCD82077  Leptosiphon bicolor Robin McMaster 1973-4-7 228 Yuba Browns Valley, Peoria Cemetery. 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
  CAS-BOT-BC341757  Lessingia nana Gordon H. True; J. T. Howell 1967-6-13 3558 Yuba Ca. 5 miles east of Wheatland and 1 mile north of Bear River 54 Comment
  CDA8198  Lessingia nemaclada L. Ahart 2002-10-1 9979 Yuba On the east side of the dirt road, east of the upper part of Englebright Reservoir on the Yuba River, along Rice s Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20. Comment
  CHSC83071  Lessingia nemaclada Lowell Ahart 2002-10-10 9979 Yuba On the east side of the dirt road, east of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20. 166 Comment
  JEPS103394  Lessingia nemaclada Lowell Ahart 2002-10-10 9979 Yuba On the E side of the dirt road, E of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, ca 2 miles (air) N of Bridgeport, ca 18 miles N of Highway 20. 166 Comment
  CAS-BOT-BC341779  Lessingia nemaclada Charles Williams 1981-9-8 s.n. Yuba Near Brownsville 609 Comment
  UCR118921  Lessingia virgata Beecher Crampton 1974-10-11 9094 Yuba Sacramento Valley, 3 miles southwest of Brown's Valley along Hwy 20 46 Comment
  CAS-BOT-BC342057  Lessingia virgata Beecher Crampton 1974-10-11 9094 Yuba 3 miles S.W. of Brown's Valley along Hwy. 20 Comment
  RSA654105  Lessingia virgata Beecher Crampton 1974-10-11 9094 Yuba 3 miles southwest of Brown's Valley along Highway 20 Comment
  UC1131555  Leymus cinereus F. W. Embree 1934-4-30 Yuba 4 mi ene Marysville B.M.; Marysville Quadrangle Comment
  CAS-BOT-BC130624  Lilium humboldtii Rimo Bacigalupi 1927-7-2 1583 Yuba 1 mile west of Camptonville Comment
  CAS-BOT-BC130620  Lilium humboldtii A. M. Vollmer; L. Beane 1951-7-1 187 Yuba Brownsville Comment
  JEPS125980  Lilium humboldtii subsp. humboldtii D. W. Taylor 2001-6-18 17784 Yuba Near Woodleaf, along the LaPorte road from the Butte County line to about 1 mile SW, scattered growing along road shoulder for a distance of 1/2 mile. Comment
  CAS-BOT-BC130868  Lilium pardalinum Volney Rattan s.n. Yuba unspecified Comment
  CAS-BOT-BC130869  Lilium pardalinum Anna Cramsie 1933-4-24 s.n. Yuba Smartsville Comment
  CAS-BOT-BC130870  Lilium pardalinum Mrs. J. E. Cramsie 1923-6-14 s.n. Yuba Smartsville Comment
  CAS-BOT-BC110649  Limnanthes alba Peter H. Raven 1953-5-9 5477 Yuba 2 miles from Brownsville on road to Dobbins. Comment
  RSA726963  Limnanthes alba subsp. alba L. Ahart 2007-5-14 13866 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  SEINET6670288  Limnanthes alba var. alba L. Constance 1949-4-29 3280 Yuba Oregon House, 2 miles W of Dobbins. 457 Comment
  UC971813  Limnanthes douglasii subsp. rosea Annetta Carter 1942-5-3 1672 Yuba field s Marysville Comment
  SJSU10807  Limnanthes douglasii subsp. rosea J. B. Willis Jr. 1969-4-19 46 Yuba 5 mi E of Linda Comment
  CDA6278  Limnophila X ludoviciana L. Ahart 1977-9-25 Yuba Sam Shintaffer Farms property 2.1 miles northeast of Jack Slough Road on Kimball Lane, 5 miles northeast of Marysville. 0 Comment
  CDA6279  Limnophila X ludoviciana L. Ahart 1977-9-25 Yuba Sam Shintaffer Farm, 2 miles northeast of Marysville. 0 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
  JEPS95375  Linanthus harknessii Lowell Ahart 1994-6-27 7379 Yuba 4 mi NE of Strawberry Valley (near E side of Schwartz Meadow, E side of La Porte Road) 1219 Comment
  CDA36806  Linaria dalmatica D. B. Joley 1972-9-15 5 Yuba Railroad at intersection of Hwy 70 and Hwy 65 (east of Marysville). 0 Comment
  CHSC116035  Lindernia dubia var. anagallidea Lowell Ahart 2015-11-19 20681 Yuba 100 yards or more north of the spillway area, below the high water line, west side of Lake Francis, about 1-1/2 miles south of Dobbins. 512 Comment
  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
  JEPS94975  Lindernia dubia var. anagallidea Lowell Ahart 1997-8-13 7860 Yuba ca. 2.25 mi. (air) e. Borwn's Valley (on s. side of Scott Forbes Rd., 0.25 mi. e. of intersection of Scott Forbes Rd. & Peoria Rd., just e. of Gray Dr.) Comment
  CHSC110337  Linnaea borealis var. longiflora L. P. Janeway 2013-6-20 11147 Yuba Northern High Sierra Nevada. Plumas National Forest; along the narrow overgrown PG and E powerline corridor 1.0 km east of Sly Creek Dam, 0.2 km south of the Sly Creek arm of Sly Creek Reservoir. 1106 Comment
  CHSC117656  Linnaea borealis var. longiflora 2016-9-9 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
  UCD81492  Linum bienne Christopher Michael Bronny 2009-3-23 4 Yuba Lower Sierra Nevada foothills. Area near Loma Rica. 158 Comment
  UCD110586  Linum bienne Barbara Yungert 1974-4-25 78 A Yuba Four wheel drive road, SC-14 project area, Sierra Foothill Field Station. Comment
  UCD150657  Linum usitatissimum Collector unknown 1976-5-15 205 Yuba 0.9 mi S of Camptonville on Hwy 49. 762 Comment
  CDA14562  Lithocarpus densiflorus var. densiflorus G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3039 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  SEINET9330134  Lithocarpus densiflorus var. densiflorus Unknown 1981-6-22 3039 Yuba Oregon Hill Road, 0.1 mi N of Marysville Road, SW of Bullards Bar Dam. J.T. Howell #54076. Comment
  CAS-BOT-BC36547  Lithocarpus densiflorus var. echinoides John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54086 Yuba 3.6 miles northeast of Strawberry Valley on La Porte-Quincy road 1280 Comment
  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
  CAS-BOT-BC430983  Lithophragma bolanderi Junea Kelley 1920-4-24 s.n. Yuba Los Vergils Comment
  CHSC41218  Lithophragma campanulatum J. D. Jokerst 1984-4-23 1985 Yuba Ca. 1/4 mile N of the North Fork of the Yuba River at Wambo Bar. Comment
  SEINET12221794  Lithophragma heterophyllum F. H. Utech 1990-6-5 90 -865 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  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
  CAS-BOT-BC283568  Lolium multiflorum John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54091 Yuba 3.6 miles NE of Strawberry Valley on La Porte - Quincy Road 1280 Comment
  SEINET4671403  Lolium multiflorum A. Tiehm 1975-1 639 Yuba U.C. Sierra Foothill Field Station 198 Comment
  UCD66188  Lolium multiflorum Barbara Yungert 1974-5-1 G- 3 Yuba West of road near SC-12 fence line, SC-14 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC269071  Lolium perenne Lowell Ahart 1981-6-13 2842 Yuba Along new gravel road, NE side of McGinn Hill, east of Loma Rica 300 Comment
  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
  RSA22243  Lomatium marginatum L. S. Rose 1939-6-6 39223 Yuba Brownsville 686 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
  CHSC59490  Lomatium utriculatum H. E. Mac Lennan 1992-4-15 19 Yuba 20 air miles se of Oroville. 518 Comment
  CAS-BOT-BC240567  Lonicera hispidula Lowell Ahart 1980-6-19 2402 Yuba 3 miles south-east of Challenge 800 Comment
  JEPS124397  Lonicera hispidula Lowell Ahart, Leigh Johnson 2015-6-10 20225 Yuba Along New York Flat Road, about 1/4 mile northwest of La Porte Road. Comment
  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
  UCD137351  Lonicera interrupta Barbara Yungert 1974-5-23 180 Yuba west of road, SC-14 project area, Sierra Foothill Field Station. Comment
  UCD80205  Lonicera interrupta CNPS SN Foothill Team 2005-7-6 SNNR 0477 Yuba CDFG Daugherty Hill Wildlife Area. 262 Comment
  RSA0074187  Lonicera involucrata M. A. Elvin 1933-7-14 54 Yuba Greenville. Comment
  CHSC110340  Lonicera involucrata var. involucrata L. P. Janeway; Tim Hanson 2013-4-25 11093 Yuba Northern High Sierra Nevada. Plumas National Forest; 50 m east of Oregon Hill Road between Burnt Bridge Creek and Little Oregon Creek. 640 Comment
  CHSC11389  Lonicera involucrata var. involucrata Lowell Ahart 1968-5-10 Yuba Near Challenge 762 Comment
  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
  SEINET7072996  Lotus humistratus A. G. Vestal 1963-5-30 s.n. Yuba Meadow about 3.9 miles south of Brownsville and 0.3 mile north of Willow Glen Ranch on Willow Glen Road. UTM Zone 10, 647202mE, 4364746mN. Coordinate datum: NAD27). Comment
  SEINET7075557  Lotus humistratus 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
  SEINET7042628  Lotus micranthus A. G. Vestal 1963-5-7 s.n. Yuba Ca. 3.5 miles north of Wheatland. Camp Far West quadrangle UTM Zone 10, 640908mE, 4323324mN. Comment
  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
  UCR201941  Lotus purshianus var. purshianus George K. Helmkamp, E. A. Helmkamp 2008-10-6 14201 Yuba Sacramento Valley, junction of CA-65 and Ostrom No. 3 Road, southeast of Olivehurst 24 Comment
  UC144152  Lotus wrangelianus A. A. Heller 1905-3-21 7554 Yuba Marysville Comment
Read comments Apr 27 2016
  SEINET7042627  Lotus wrangelianus A. G. Vestal 1963-5-7 s.n. Yuba Ca. 3.5 miles north of Wheatland. Camp Far West quadrangle UTM Zone 10, 640908mE, 4323324mN. Comment
  CDA38130  Ludwigia palustris L. Ahart 2002-10-9 9969 Yuba On the south bank of Lost Creek, below the high water line of Sly Creek Reservoir, about 200 yards southwest of the Day Camp, Sly Creek Reservoir. Comment
  SEINET10544012  Lupinus albicaulis subsp. shastensis Charles Piper Smith 1933-7-20 Smith 33114 Yuba Comment
  CAS-BOT-BC198375  Lupinus albifrons Charles Piper Smith 1949-4-16 49103 Yuba Loma Rica, 4 miles northeast, Loma Rica Bangor Road, Yuba-Butte Bridge Comment
  CAS-BOT-BC196030  Lupinus albifrons var. albifrons Charles Piper Smith 1948-4-27 48183 Yuba Junction Dobbins & Browns Valley-Brownsville roads. Stanfield Hill, 3.4 miles northeast Comment
  CHSC68478  Lupinus albifrons var. albifrons Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7727 Yuba On the bank of the Browns Valley Water Ditch, north of the poor dirt road, south of Dry Creek, about 1 1/4 miles east of Scotts Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 198 Comment
  JEPS94930  Lupinus albifrons var. albifrons Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7727 Yuba about 17 mi ne of Marysville (on bank of Browns Valley Water Ditch, n of the poor dirt road, s of Dry Creek, about 1 1/4 mi e of Scott Forbes Road (Long Bar Rd)); Browns Valley Water Ditch 198 Comment
  JEPS95156  Lupinus albifrons var. albifrons Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7727 Yuba about 17 mi ne of Marysville (on bank of Browns Valley Water Ditch, n of the poor dirt road, s of Dry Creek, about 1 1/4 mi e of Scott Forbes Road (Long Bar Rd)); Browns Valley Water Ditch 198 Comment
  UCR196984  Lupinus albifrons var. collinus George K. Helmkamp, E. A. Helmkamp 2008-5-20 13469 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  JEPS118298  Lupinus benthamii Lowell Ahart 2011-6-7 17395 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  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
  UCD33241  Lupinus benthamii Beecher Crampton 1967-5-17 7939 Yuba Yuba County, 5 miles east of Brown's Valley, sierra foothill range field station. 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
  CHSC90477  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 5 miles (air) northeast of Loma Rica. 395 Comment
  JEPS107408  Lupinus benthamii var. opimus Lowell Ahart 2005-3-11 11611 Yuba S steep slope of large rock outcrop, W of poor dirt road, ca. 1/2 mi W of Marysville Rd, ca. 1/2 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/2 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 395 Comment
  JEPS107955  Lupinus benthamii var. opimus Lowell Ahart 2005-3-11 11611 Yuba South steep slope of a large rock outcrop, west of a poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 395 Comment
  UC710381  Lupinus bicolor C. P. Smith 1946-5-2 46247 Yuba 7.4 mi sw Hammonton Road Smartville; Smartville - 7.4 mi sw Hammonton Road Comment
  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
  UCD35789  Lupinus bicolor Beecher Crampton 1962-4-24 6261 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCR194908  Lupinus bicolor George K. Helmkamp, E. A. Helmkamp 2007-5-26 12131 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville 802 Comment
  SEINET7042565 Image available Lupinus bicolor A. G. Vestal 1963-5-7 s.n. Yuba Along Ostrom Road east of Route 99. Wheatland quadrangle UTM Zone 10, 630286mE, 4325478mN. Comment
  SEINET7063123 Image available Lupinus bicolor A. G. Vestal 1963-5-29 s.n. Yuba Olivehurst-Smartville Road 0.4 mile west southwest of Road to Beale Air Force Base. Road side in weedy grassland. Comment
  UCD107335  Lupinus bicolor Barbara Yungert 1974-4-16 50 Yuba Kock Livestock, Sierra Foothill Field Station. 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
  RSA0118773  Lupinus bicolor subsp. tridentatus Lawrence P. Janeway 2014-5-13 11254 Yuba Northern High Sierra Nevada. Plumas National Forest; along Oregon Hill Road at the hairpin turn above Burnt Bridge Creek and New Bullards Bar Reservoir. 773 Comment
  CHSC113642  Lupinus bicolor var. tridentatus L. P. Janeway 2014-5-13 11254 Yuba Northern High Sierra Nevada. Plumas National Forest; along Oregon Hill Road at the hairpin turn above Burnt Bridge Creek and New Bullards Bar Reservoir. 773 Comment
  CHSC115308  Lupinus bicolor var. tridentatus Lowell Ahart 2015-4-30 20132 A Yuba Near shallow drainage, serpentine, on the west side of the quarry, about 1 1/4 miles (air) southwest of Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. Yellow Pine Forest. 709 Comment
  RSA21300  Lupinus densiflorus var. lacteus Carl B. Wolf 1937-5-13 8645 Yuba Sierra Nevada Foothills, 1 2/10 mi. below Stanfield hill on road to Browns Valley. 274 Comment
  UCD108127  Lupinus latifolius Kathleen Keliher 1975-5-14 104 Yuba top of hill near Road 4, near Meathook area, L 1-21 project area, Sierra Foothill Field Station. 243 Comment
  UCR169082  Lupinus microcarpus David Charlton 2005-5-16 8000 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  UCD108760  Lupinus microcarpus var. densiflorus Barbara Yungert 1974-4-29 95 Yuba south of picnic area, north of Yuba River, Sierra Foothill Field Station. Comment
  CHSC90459  Lupinus nanus Lowell Ahart 2005-3-11 11619 Yuba Along the sides of the poor dirt road, 100 yards west of a large rock outcrop, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 386 Comment
  UC710387  Lupinus nanus C. P. Smith 1946-5-2 46255 Yuba 1.4 mi e Browns Valley Comment
  UC710407  Lupinus nanus C. P. Smith 1946-5-2 46253 Yuba Hiway 20, 0.3 mi w Smartville; w of Smartville Comment
  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
  UCR196997  Lupinus polyphyllus var. burkei George K. Helmkamp, E. A. Helmkamp 2008-5-20 13490 Yuba Foothills, northern Sierra Nevada Mountains, Camptonville, at the junction of Henness Pass Road and CA-49 823 Comment
  UC1129712  Lupinus stiversii F. W. Embree 1934-4-30 46 Yuba 3 1/2 mi ene Marysville BM; Marysville Quad., ene of Marysville BM Comment
  UCD109589  Lupinus stiversii Barbara Yungert 1974-5-4 115 Yuba south of rock pile dredgings, north of Yuba River, Sierra Foothill Field Staion. Comment
  SEINET10490993  Lupinus vallicola subsp. vallicola Smith 1948-4-27 Smith 48184 Yuba Jct dobbins and browns valley--brownsville roads. Stanfield hill, 3.4 mi ne. Comment
  CHSC106354  Luzula cascadensis Lowell Ahart 2010-7-27 16914 Yuba On the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. 1219 Comment
  JEPS117663  Luzula cascadensis Lowell Ahart 2010-7-27 16914 Yuba On the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam 1219 Comment
  CHSC47580  Luzula macrantha Lowell Ahart 1979-6-3 1915 Yuba About 1 mile south of Challenge. 670 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
  CHSC116111  Lycopus americanus Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20638 Yuba On the bottom of the spillway area at the west side and near the top of Lake Francis Dam, below the high water line of Lake Francis, about 1-1/2 miles south of Dobbins. 512 Comment
  CHSC83062  Lycopus americanus Lowell Ahart 2002-10-8 9942 Yuba On the edge of a pond, about 100 yards north of Long Ravine Road, about 300 yards southeast of the intersection of Camp Far West Road and Long Ravine Road there is a poor gate on the north side of the road, north of Camp Far West Reservoir. 121 Comment
  CHSC97134  Lycopus americanus Lowell Ahart 2007-6-30 14237 Yuba Near and west of new road pad, about 250 yards west of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  HSC14222  Lycopus americanus C. B. Wolf 1927-11-5 1439 Yuba Road to Brown's Valley, 8 mi. from Marysville Comment
  JEPS118089  Lythrum hyssopifolia Lowell Ahart 2011-6-7 17404 Yuba North of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  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
  UCD134173  Madia citriodora Barbara Yungert 1974-5-1 102 Yuba along irrigation ditch, north of road, SC-14 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC344281  Madia elegans David D. Keck 1932-7-1 1609 Yuba 1 mile SE. of Log Cabin Service Station, west of Camptonville 600 Comment
  CAS-BOT-BC344282  Madia elegans David D. Keck 1932-7-1 1609 Yuba 1 mile SE. of Log Cabin Service Station, west of Camptonville 600 Comment
  SEINET7072997  Madia elegans subsp. elegans A. G. Vestal 1963-5-30 s.n. Yuba Meadow about 3.9 miles south of Brownsville and 0.3 mile north of Willow Glen Ranch on Willow Glen Road. UTM Zone 10, 647202mE, 4364746mN. Coordinate datum: NAD27). Comment
  POM225673  Madia elegans subsp. vernalis D. D. Keck, Palmer Stockwell 1935-5-16 3313 Yuba N edge of Lebec. Comment
  SEINET10474301  Madia elegans subsp. vernalis Lowell Ahart, Peter Ahart 1983-8-10 Ahart 4274 Yuba Along Peterson Rd, ca. 5 mi e of Challenge. Yellow Pine Forest; 1000 m. 1000 Comment
  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
  CAS-BOT-BC344592  Madia exigua Gordon H. True; J. T. Howell 1967-6-13 3573 Yuba Camp Far West Reservoir on Bear River east of Wheatland 60 Comment
  CAS-BOT-BC344597  Madia exigua Lowell Ahart 1981-6-13 2839 Yuba Sutter Buttes Area. On the northeast side of McGinn Hill, Loma Rica 300 Comment
  CAS-BOT-BC334672  Madia glomerata Lowell Ahart 1980-8-12 2552 Yuba Along Slate Creek, Sierra Nevada 1250 Comment
  CAS-BOT-BC343562  Madia gracilis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54070 Yuba 1.4 miles southwest of Bullards Bar Dam on road to Challenge 609 Comment
  CHSC110320  Madia gracilis L. P. Janeway 2013-6-7 11137 Yuba Northern High Sierra Nevada. Along Oregon Hill Road just south of Little Oregon Creek. 628 Comment
  CHSC37191  Madia gracilis L. Ahart 1982-7-4 3660 Yuba Ca. 1/2 mi e of Brownsville along LaPorte Rd. 700 Comment
  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
  SEINET13709234  Madia gracilis Lowell William Ahart, Lowell William Ahart 2003-1 10355 Yuba Along Fountain Hill Road 5 Mi. N of Dobbins (39 Deg 26'11.7"N, 121 Deg 12'07.3"W) 2746 Ft. 837 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-BC343561  Madia gracilis David D. Keck 1930-7-25 985 Yuba Between Bullards Bar Reservoir and Camptonville 600 Comment
  UCD134276  Madia gracilis L. Ahart 1982-7-4 3660 Yuba ca. 1/2 mile east of Brownville, along La Porte Road. 700 Comment
  HSC100825  Madia rammii Lowell Ahart 2007-5-12 13772 Yuba Bottom of swale, ~100 yd. SW of second power tower, ~300 yd. N of Fruitland Rd., 13 (air) mi. NE of Marysville. 28 Comment
  SEINET7072722  Madia sativa A. G. Vestal 1963-5-7 s.n. Yuba About 3.5 miles north of Wheatland on Jasper Lane. UTM Zone 10, 636590E, 4323573mN. Coordinate datum: NAD 27. Comment
  CHSC108195  Madia subspicata Lowell Ahart 2011-6-7 17381 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  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
  UCD134347  Malacothrix clevelandii Collector Unknown 1925-5-17 1622 Yuba Marysville Buttes. Comment
  CAS-BOT-BC347374  Malacothrix floccifera Lewis S. Rose 1939-6-7 39244 Yuba N. Fork of Feather River, 3 mi. s. of Pulga 609 Comment
  CHSC110339  Malus pumila L. P. Janeway; Tim Hanson 2013-4-25 11094 Yuba Northern High Sierra Nevada. Plumas National Forest; 50 m east of Oregon Hill Road between Burnt Bridge Creek and Little Oregon Creek. 640 Comment
  CHSC76109  Malva parviflora Lowell Ahart 1999-9-5 8199 Yuba On the disturbed area on the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 Comment
  RSA716506  Marah fabacea L. Ahart 2005-3-11 11602 Yuba 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
  UCD107669  Marah fabacea Barbara Yungert 1974-4-10 16 Yuba Along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  JEPS107451  Marah fabacea var. agrestis Lowell Ahart 2005-3-11 11602 Yuba In center of large rock outcrop, just E of the poor dirt road, ca. 1/2 mi W of Marysville Rd, ca. 1/2 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/2 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 386 Comment
  HSC14232  Marrubium vulgare T. F. Newman 1964-2-22 10 Yuba 10 miles N of Marysville on Alt. 40. 5 mi. on Rameriz Rd. Comment
  JEPS121314  Marsilea vestita Lowell Ahart 2013-11-30 19317 Yuba On the SE side of Dry Creek, about 30 yards SE of Willow Glen Creek, below the high water line of Collins Lake, about 30 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  RSA727529  Marsilea vestita subsp. vestita L. Ahart 2007-11-8 14579 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 74 Comment
  UCD134622  Matricaria discoidea Barbara Yungert 1974-4-17 18 Yuba North of Yuba River, Sierra Foothill Field Station. Comment
  CHSC76108  Medicago lupulina Lowell Ahart 1999-9-5 8193 Yuba On the disturbed area on the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 Comment
  JEPS95892  Medicago lupulina Lowell Ahart 1999-9-5 8193 Yuba on the disturbed area on the south side of Woodruff Lane; just west of Kimball Lane; about 5 miles (air) northeast of Marysville 24 Comment
  UCD33105  Medicago lupulina Beecher Crampton 1966-6-14 7743 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  SEINET7042629  Medicago lupulina A. G. Vestal 1963-5-7 s.n. Yuba Ca. 3.5 miles north of Wheatland. Camp Far West quadrangle UTM Zone 10, 640908mE, 4323324mN. Comment
  CHSC97677  Medicago polymorpha Lowell Ahart 2007-5-14 13871 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  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
  JEPS118737  Melica californica L. P. Janeway and Melanie Williams, Tim Hanson 2011-6-9 10376 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. French Corral 7.5' quad. Comment
  SEINET4671582  Melica californica A. Tiehm 1975-1 646 Yuba U.C. Sierra Foothill Field station 274 Comment
  UC1254609  Melica californica Beecher Crampton 1967-5-17 7940 Yuba 5 mi e Brown's Valley (Sierra Foothill Range Field Station - UC) 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
  UCD86927  Melica californica Beecher Crampton 1962-4-24 6274 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  SEINET4671581  Melica californica C. Aarstad 1979-4-28 s.n. Yuba At junction of Route 20 and north fork of Yuba in Browns Valley 183 Comment
  UCD87250  Melica californica var. nevadensis Beecher Crampton 1965-5-11 7314 Yuba 5 miles east of Brown's Valley; Sierra Foothill Range Field Station. Comment
  JEPS100263  Melica geyeri var. geyeri Dean W. Taylor 2001-5-9 17636 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  CHSC40950  Melica harfordii J. D. Jokerst 1984-7-5 2080 Yuba Canyon of Deadwood Creek between creek and Weed Point. 883 Comment
  CHSC105840  Melica subulata Lowell Ahart 2010-7-27 16921 Yuba Meadow on the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. Dry part of the meadow. 1219 Comment
  UCD88662  Melica subulata W. R. Powell 1968-5-24 1553 Yuba 5 miles SSE of Challenge, 3/4 miles south of Greenville. In pine forest community. 640 Comment
  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
  UCD89075  Melica torreyana Beecher Crampton 1965-5-11 7316 Yuba 3 miles east of Brown's Valley. Comment
  UCR197048  Melica torreyana George K. Helmkamp, E. A. Helmkamp 2008-5-20 13472 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  SEINET5322428  Melica torreyana M. Mooney 1982-1 460 A Yuba UCB Sierra Field Station, road between station and main highway 183 Comment
  CHSC97235  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
  JEPS104591  Mentha spicata Lowell Ahart 2003-7-17 10417 Yuba On the bottom of a stream, on the w side of Smartville road, ca 2 mi n of the intersection of Waldo Rd and Smartville Rd, ca 6 mi (air) south of Smartville. 129 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
  SEINET7067146  Micropus amphibolus A. G. Vestal 1947-4-30 s.n. Yuba About 5.1 miles west of Smartville. Coordinate datum: NAD27. UTM Zone 10, 641421mE, 4340515mN. Comment
  CAS-BOT-BC348442  Micropus californicus var. californicus Gordon H. True 1963-4-17 1187 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Hwy. 30 Comment
  CHSC108201  Micropus californicus var. californicus Lowell Ahart 2011-6-7 17382 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS118294  Micropus californicus var. californicus Lowell Ahart 2011-6-7 17382 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  JEPS94318  Micropus californicus var. californicus Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7723 Yuba about 17 mi ne of Marysville (on bank of the Browns Valley Water Ditch, s of the poor dirt road, s of Dry Creek, about 1 mi e of Scott Forbes Road (Long Bar Road)); Browns Valley Water Ditch 182 Comment
  SEINET7067141  Micropus californicus var. californicus A. G. Vestal 1947-4-30 s.n. Yuba About 5.1 miles west of Smartville on Route 20. Coordinate datum: NAD27. Comment
  CAS-BOT-BC348441  Micropus californicus var. californicus Alice Eastwood 1921-5-22 10534 Yuba Los Vergils Comment
  UCD118914  Microsteris gracilis Kathleen Keliher 1975-5-15 110 Yuba Along Cleaveland Road across from Mountain View property, 3 miles E of Camptonville. 914 Comment
  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
  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
  UC943803  Mimulus aurantiacus var. grandiflorus H. E. McMinn 1946-5-11 5507 Yuba road from Dobbins to Camptonville; North Fork Yuba River Comment
  CAS-BOT-BC9749  Mimulus discolor George Ledyard Stebbins 1966-5-22 6409 Yuba Near Forbestown 822 Comment
  UCD84997  Mimulus kelloggii Dena Grossenbacher; Ryan Briscoe Runquist 2009-4-1 960 Yuba 0.9 miles west of Highway 49 along the north side of Moonshine Road which starts on the north side of the Highway 49 Yuba River bridge. 451 Comment
  RSA535807  Mimulus kelloggii David M. Thompson 1988-3-21 848 Yuba Between 0.8 and 0.9 mi W of Hwy 49 bridge over Yuba River along Moonshine Road, which starts on the N side of the bridge. 442 Comment
  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
  UC1552732  Mimulus pulsiferae Frederica Bowcutt 1985-6-8 593 Yuba near Oregon Creek (1 air mi se of Camptonville and 12 air mi n of Nevada City); Tahoe National Forest Comment
  JEPS113623  Mimulus tricolor Lowell Ahart 2007-5-12 13815 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS100262  Moehringia macrophylla Dean W. Taylor 2001-5-9 17635 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  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
  JEPS121317  Mollugo verticillata Lowell Ahart 2013-11-30 19298 Yuba On the sides of a deep wash (Willow Glen Creek), NW of Dry Creek, below the high water line of Collins Lake, about 100 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  CAS-BOT-BC435063  Mollugo verticillata Alice Eastwood 1913-7-3 3409 Yuba Wheatland Comment
  NY429325  Monardella candicans var. venosa J. M. Bigelow 1854-5-25 s.n. Yuba Plain of Feather River near Marysville Comment
  UCD82843  Monardella glauca Robin McMaster 1973-6-24 483 Yuba Oregon Creek Campground. Comment
  CHSC112958  Monardella sheltonii L. 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
  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
  CAS-BOT-BC444882  Montia fontana Alice Eastwood 1921-5-22 10515 Yuba Los Vergils 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
  CDA32542  Muhlenbergia filiformis L. Ahart 2002-10-9 9972 Yuba On the south bank of Lost Creek, below the high water line of Sly Creek Reservoir, about 200 yards southwest of the Day Camp, Sly Creek Reservoir Comment
  CHSC83067  Muhlenbergia filiformis Lowell Ahart 2002-10-9 9972 Yuba On the south bank of Lost Creek, below the high water line of Sly Creek Reservoir, about 200 yards southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  UCD86997  Muhlenbergia rigens Beecher Crampton 1957-6-5 4144 Yuba 1 mile east of Stanfield Hill. 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
  CAS-BOT-BC456175  Najas guadalupensis J. T. Howell; Gordon H. True 1969-6-24 5103 Yuba Ca. 1 mile NW of Spenceville (site) on Cox Creek 152 Comment
  CAS-BOT-BC456176  Najas guadalupensis Gordon H. True, Jr.; John Thomas Howell 1970-5-29 5420 Yuba Ca. 1 mi. NW. of Spenceville (site) on Cox Creek. 152 Comment
  UCD116103  Nasturtium officinale Barbara Yungert 1974-5-9 140 Yuba F1-42 project area, Sierra Foothill Field Station. Comment
  SEINET7072977  Navarretia A. G. Vestal 1963-5-29 s.n. Yuba At 99 East and Beale Road [Presently 99 & Camp Beale Road]. UTM Zone 10, 622422mE, 4331929mN. Coordinate datum: NAD27). Comment
  UCR189430  Navarretia divaricata subsp. divaricata George K. Helmkamp, E. A. Helmkamp 2007-8-29 12832 A Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 Comment
  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
  CAS-BOT-BC230300  Navarretia heterandra Lewis S. Rose 1939-6-5 39203 Yuba Smartsville 182 Comment
  CHSC97669  Navarretia heterandra Lowell Ahart 2007-5-12 13804 Yuba About 30 feet north of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  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
  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
  UCR169019  Navarretia intertexta David Charlton 2005-5-16 8011 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  OBI11322  Navarretia intertexta Lewis S. Rose 1967-6-13 67127 Yuba Camp Far West Reservoir, 7 mi NE of Wheatland. 122 Comment
  RSA0062675  Navarretia intertexta Hobart Onstott 1946-5-11 s.n. Yuba Smartville Hills. Comment
  RSA189453  Navarretia intertexta L. S. Rose 1967-6-13 67127 Yuba Camp Far West Reservoir, 7 mi. NE of Wheatland 122 Comment
  UCD48453  Navarretia intertexta Beecher Crampton 1957-6-5 4132 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  JEPS104065  Navarretia intertexta subsp. intertexta Lowell Ahart 2003-7-6 10356 Yuba Near a meadow, e of the power line, ca 30 yd w of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  JEPS113398  Navarretia intertexta subsp. intertexta Lowell Ahart 2007-5-12 13805 Yuba Bottom of a swale, about 100 feet northeast of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UCD162514  Navarretia intertexta subsp. intertexta Steve Matson 2007-5-19 1713 Yuba nSNF; lower Sierra foothills westslope; about 1 mile south of Highway 20, off Smartville Rd. Smiling Dog Ranch. 268 Comment
  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
  SEINET5906104 Image available Navarretia leucocephala L. S. Rose 1967-1 67125 Yuba 7 mi NE of Wheatland. Comment
  SEINET7042648  Navarretia leucocephala A. G. Vestal 1963-5-30 s.n. Yuba Weedy depression near Dry Creek and north oh Sicard Flat. Smartville quadrangle UTM Zone 10, 642203mE, 4345148mN. Comment
  CHSC97639  Navarretia leucocephala subsp. leucocephala Lowell Ahart 2007-5-12 13806 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  RSA189460  Navarretia leucocephala subsp. leucocephala L. S. Rose 1967-6-13 67125 Yuba 7 mi. NE of Wheatland. 61 Comment
  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
  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
  UC856882  Navarretia pubescens Lewis S. Rose 1939-6-5 39202 Yuba Smartsville 182 Comment
  CAS-BOT-BC229014  Navarretia pubescens Beecher Crampton 1957-6-5 4131 Yuba 2.6 miles northeast of Brown's Valley P.O. Comment
  SEINET208622  Navarretia pubescens Lewis S. Rose 1967-6-13 67126 Yuba Cam Far West Reservoir; 7 miles NE of Wheatland. 122 Comment
  UCD118209  Navarretia squarrosa G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12832 Yuba Northern Sierra Nevada Mountains: along Hwy CA-49, 0.5 mile south of Camptonville. 817 Comment
  UCD118213  Navarretia squarrosa G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12832 A Yuba Northern Sierra Nevada Mountains: along Hwy CA-49, 0.5 mile south of Camptonville. 817 Comment
  JEPS113397  Navarretia tagetina Lowell Ahart 2007-5-12 13808 Yuba On dry bare distrubed dark soil, about 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  RSA726412  Navarretia tagetina L. Ahart 2007-5-12 13808 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  OBI11296  Navarretia tagetina Lewis S. Rose 1967-6-13 67124 Yuba 7 mi NE of Wheatland. 61 Comment
  RSA189450  Navarretia tagetina L. S. Rose 1967-6-13 67124 Yuba 7 mi. NE of Wheatland 61 Comment
  CHSC96484  Nemophila heterophylla Lowell Ahart 2007-4-17 13687 Yuba East side of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  JEPS113100  Nemophila heterophylla Lowell Ahart 2007-4-17 13687 Yuba East side of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  UC410446  Nemophila heterophylla Alice Eastwood 1930-4-12 17938 Yuba Texas Hill Road Comment
  UC606918  Nemophila heterophylla L. Constance 1938-6-8 2292 Yuba 4 mi nw North San Juan (Middle Fork Yuba River); Sierra Nevada foothills, Middle Fork Yuba River 426 Comment
  UCR194912  Nemophila heterophylla George K. Helmkamp, E. A. Helmkamp 2007-5-26 12134 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville 802 Comment
  POM249051  Nemophila heterophylla Lincoln Constance 1938-6-8 2292 Yuba Middle Fork of the Yuba River, 4 miles northwest of North San Juan, Sierra Nevada Foothills. 427 Comment
  UCD120072  Nemophila heterophylla Barbara Yungert 1974-4-16 53 Yuba Koch Livestock Area, Sierra Foothill Field Station. Comment
  JEPS18181  Nemophila maculata Rimo Bacigalupi with G. T. Robbins and F. Chisaki 1956-4-19 5617 Yuba 1/2 mi n Dobbins Ranger Sta. (along road from Oregon House to Dobbins); n of Dobbins Ranger Sta. (Calif. State Dept of Forestry) 548 Comment
  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
  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
  UCD110240  Notholithocarpus densiflorus Caroline B. Pratt 1977-9-27 s.n. Yuba Woodleaf, ca. 5 miles east of Challenge. At edge of trail along Oroville-Wyandotte Canal, upstream from gravity flow pipe that bypasses inhabited area. 914 Comment
  UCD110220  Notholithocarpus densiflorus var. echinoides G. D. Barbe; J. T. Howell, T. C. Fuller 1981-6-22 3056 Yuba La Porte-Quincy Road 3.6 miles northeast of Strawberry Valley at the Plumas county line. Comment
  CDA3522  Nymphaea odorata G. D. Barbe 1977-4-18 2253 b Yuba 13th and D Streets, Marysville . 0 Comment
  CHSC113658  Odontostomum hartwegii L. P. Janeway 2014-5-12 11247 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  CHSC93885  Odontostomum hartwegii L. P. Janeway 2006-5-24 8621 Yuba Northern Sierra Nevada Foothills. East side of Ponderosa Way 1.3 km north of La Porte Road and Brownsville. 686 Comment
  CHSC96416  Odontostomum hartwegii L. P. Janeway 2006-5-24 8633 Yuba Northern Sierra Nevada Foothills. South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. 483 Comment
  JEPS122444  Odontostomum hartwegii L. P. Janeway 2014-5-12 11247 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Quad: French Corral 7.5'. Comment
  UCR95623  Odontostomum hartwegii C. B. Wolf 1937-5-13 08649 Yuba Sierra Nevada Foothills, 1.6 mi NW of Stanfield Hill, along fork of South Honcut Creek 305 Comment
  RSA21304  Odontostomum hartwegii Carl B. Wolf 1937-5-13 8649 Yuba Sierra Nevada Foothills, 1.6 miles NW of Stanfield Hill, along fork of south Honcut Creek. 305 Comment
  UCD139089  Odontostomum hartwegii Barbara Yungert 1974-5-9 139 Yuba east bank of Road 1, Porter Hill, P 1-21 project area, Sierra Foothill Field Station. Comment
  CHSC76110  Oenothera elata subsp. hirsutissima Lowell Ahart 1999-9-5 8194 Yuba On the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 Comment
  HSC96893  Orobanche uniflora L. Ahart 2004-4-27 10765 Yuba About 20 yrds. W of a drainage, about 40 yrds. S of the road, about 1/2 mi. (air) SE of Woodleaf 932 Comment
  SJSU8387  Orobanche uniflora J. B. Willis Jr. 1969-4-27 Yuba by old stage rd to Timbuctoo, NW of Smartville, 0.25 mi from State Hwy 20 Comment
  JEPS106275  Orobanche uniflora var. uniflora Lowell Ahart 2004-4-27 10765 Yuba About 20 yards west of a drainage, about 40 yards south of the road, about 1/2 mile (air) southeast of Woodleaf 931 Comment
  UCD37866  Orthocarpus pusillus Beecher Crampton 1962-4-24 6281 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD37869  Oxalis corniculata Beecher Crampton 1962-4-24 6285 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CHSC78156  Oxalis laxa Lowell Ahart 2000-5-25 8401 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
  CHSC63239  Packera eurycephala var. eurycephala Lowell Ahart 1994-6-5 7295 Yuba On the north side of Costa Creek, on the north side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  JEPS88898  Packera eurycephala var. eurycephala Lowell Ahart 1994-6-5 7295 Yuba n side of Forbestown Rd about 3 air mi e Forbestown (n side of Costa Creek); Costa Creek 853 Comment
  JEPS88899  Packera eurycephala var. eurycephala Lowell Ahart 1994-6-5 7295 Yuba n side of Forbestown Rd about 3 air mi e Forbestown (n side of Costa Creek); Costa Creek 853 Comment
  UC1728262  Packera layneae Al Franklin 1997-7-1 97138 Yuba on Ponderosa Way just n La Porte Rd.; Brownsville, Recreation Park Comment
  SBBG26331  Panicum acuminatum B. Crampton 1966-6-14 Yuba 1 mi E of Brownsville 731 Comment
  CHSC63312  Panicum acuminatum var. acuminatum Lowell Ahart 1994-6-5 7308 Yuba Meadow on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  CHSC78364  Panicum acuminatum var. acuminatum Lowell Ahart 2000-6-19 8492 Yuba In a meadow, about 100 yards north of New York Flat Road, about 1 1/4 miles (air) northeast of Brownsville, about 2 1/4 miles (air) west of Challenge. 731 Comment
  CHSC112094  Panicum acuminatum var. fasciculatum L. P. Janeway; James Nixon, Eduardo Gonzales 2014-7-2 11430 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow opening just northeast of Little Oregon Creek and 0.2 km east of Oregon Hill Road; 7.3 air-km southeast of Challenge. 625 Comment
  UCD32863  Panicum acuminatum var. fasciculatum Beecher Crampton 1964-10-22 7222 Yuba 3 miles east of Browns Valley, dry creek bed Comment
  UCD33106  Panicum acuminatum var. fasciculatum Beecher Crampton 1966-6-14 7745 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  JEPS113473  Panicum capillare Lowell Ahart 2007-5-14 13886 Yuba 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  UCD89503  Panicum capillare Beecher Crampton 1964-10-22 7226 Yuba 3 miles east of Brown's Valley. Comment
  CHSC96865  Panicum dichotomiflorum Lowell Ahart 2007-6-22 14219 Yuba Bottom of a new ditch, near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC78172  Parentucellia viscosa Lowell Ahart 2000-5-25 6396 Yuba On the seepy edges of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  UCR231329  Parentucellia viscosa George K. Helmkamp, E. A. Helmkamp 2011-5-6 17199 Yuba East edge of Sacramento Valley, Camp Far West Road, 2.3 miles northwest of the junction at Camp Far West Reservoir, 5.3 miles NE (53 deg. ) of Wheatland 55 Comment
  SBBG121199  Parentucellia viscosa L. Ahart 2007-5-14 13856 Yuba 60 yards N of the third power tower, ca. 0.5 mi N of Fruitland Rd, ca. 13.5 mi (air) NE of Marysville 29 Comment
  POM301690  Paspalum dilatatum J. C. Roos 1939-7-3 1519 Yuba East of Marysville 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
  CHSC59309  Paxistima myrsinites L. P. Janeway; Jean Witzman, Robin Fallsheer 1992-4-15 4152 Yuba Southwest side of Slapjack Creek, 1 mi southeast of Woodleaf. On slope near the creek. 899 Comment
  JEPS94627  Paxistima myrsinites Lowell Ahart 1997-8-7 7832 Yuba about 3 air mi e Challenge (on w side of dirt rd., on s side of creek); Indian Creek 762 Comment
  RSA516593  Pedicularis aurantiaca R. C. Bacigalupi, G. Thomas Robbins, Francia Chisaki 1956-4-19 5622 Yuba Between Dobbins and Bullard Bar Dam, watershed of North Fork of the Yuba River, 3.1 mi E of Dobbins (or 5.5 miles SW of Bullard Bar Dam). 784 Comment
  CHSC116525  Pedicularis densiflora Lowell Ahart 2015-4-30 20127 A Yuba On the south side of the gravel road, about 10 yards east of the gate, about 3/4 mile (air) southeast of Woodleaf. 948 Comment
  JEPS18882  Pedicularis densiflora Rimo Bacigalupi with G. T. Robbins and Fran Chisaki 1956-4-19 5622 Yuba 3.1 mi e of Dobbins (between Dobbns and Bullard Bar Dam, watershed of North Fork of Yuba River, 5.5 mi sw of Bullard Bar Dam); Yuba River 783 Comment
  UCD123328  Pedicularis densiflora W. R. Powell 1968-5-24 1550 Yuba 1 1/4 miles south-southwest of Challenge. 755 Comment
  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
  SEINET11713853  Pellaea mucronata E. O. Pelton 1879-1 s.n. Yuba no further locality Comment
  CAS-BOT-BC77200  Pellaea mucronata subsp. mucronata Gordon H. True; J. T. Howell 1969-4-9 4786 Yuba Road between Englebright Dam and Anthony House, ca. 1 mile west of Anthony House. 365 Comment
  JEPS94942  Pellaea mucronata var. mucronata Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7731 Yuba along s side of creek about 1 mi below Scott Forbes Road (Long Bar Road) (n of the poor dirt road, about 17 mi e of Marysville); Dry Creek 121 Comment
  SEINET211417 Image available Penstemon azureus James L. Reveal 1971-6-23 2477 Yuba Along California Highway 49, 0.5 mile north of the south Yuba River along a roadcut, about 7 miles north of Yuba City 366 Comment
  UCD23252  Penstemon heterophyllus var. purdyi W. R. Powell 1968-5-15 1496 Yuba 2 miles NE of Dobbins on Fountain House Road. 792 Comment
  RSA789816  Penstemon laetus Rebecca Wenk 2005-10-8 396 Yuba Top of Yuba Pass, along hwy 49. Comment
  SBBG28998  Penstemon laetus D. D. Keck 1932-7-1 1608 Yuba 1 mi SE of Log Cabin Service Station, W of Camptonville 609 Comment
  JEPS123879  Penstemon laetus var. leptosepalus Lowell Ahart 2015-4-30 20136 Yuba About 2 1/4 miles (air) southwest of Brownsville, about 2 miles (air) northeast of Rackerby. Comment
  SEINET11262157  Penstemon laetus var. leptosepalus Karl A. Vincent, Charlotte A. Labbe 1987-8-10 4504 Yuba Sierra Nevada, New York Flat. Along N side of LaPorte Rd (CA E21) at jct New York House (Rd) ca 1.8 mi W of Challange.; 0 732 Comment
  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
  NY604508  Penstemon laetus var. leptosepalus K. A. Vincent 1987-8-10 4504 Yuba Sierra Nevada, New York Flat; along north side of LaPorte Rd. (CA E21) at jct. New York House (Rd.) ca. 1.8 miles west of Challenge. 731.5 Comment
  POM190467  Penstemon laetus var. leptosepalus D. D. Keck 1932-7-1 1608 Yuba 1 mile SE of log Cabin Service Station, W of Camptonville. 610 Comment
  POM195082  Penstemon laetus var. leptosepalus D. D. Keck 1930-7-25 983 Yuba Bullards Bar Reservoir. 457 Comment
  POM195083  Penstemon laetus var. leptosepalus D. D. Keck 1930-7-25 982 Yuba Challenge. 732 Comment
  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
  UCR195157  Penstemon neotericus George K. Helmkamp, E. A. Helmkamp 2007-5-26 12146 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, just north of the Nevada Co. line; beside Oregon Creek and Oregon Creek campground 430 Comment
  SEINET12315995  Pentagramma triangularis E. O. Pelton 1878-1 s.n. Yuba no further locality Comment
  UCD81493  Pentagramma triangularis subsp. triangularis Christopher Michael Bronny 2009-4-1 5 Yuba Oat Hills' area of Sierra Nevada foothills. 217 Comment
  CAS-BOT-BC211273  Perideridia bacigalupii Lowell Ahart 1980-8-12 2527 Yuba About 2 miles south-east of Woodleaf 800 Comment
  CHSC105607  Perideridia bacigalupii L. P. Janeway 2010-8-11 10138 Yuba Northern High Sierra Nevada. Plumas National Forest; near the head of Little Oregon Creek, along Peterson Ridge Road 1.4 road km southeast of Oregon Hill Road. Mostly along the north edge of the dirt road and just up the cutbank. 876 Comment
  CHSC69128  Perideridia bacigalupii Lowell Ahart 1997-8-7 7810 Yuba On the north side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  JEPS94993  Perideridia bacigalupii Lowell Ahart 1997-8-7 7810 Yuba about 3 air mi se of Challenge (on n side of the dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  JEPS95151  Perideridia bacigalupii Lowell Ahart 1997-8-7 7810 Yuba about 3 air mi se of Challenge (on n side of the dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  CHSC108149  Perideridia kelloggii L. P. Janeway 2011-8-15 10649 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 1.9 air km south-southwest of Oregon Peak, 0.3 km north of Marysville Road. Southwest edge of meadow area, where seasonal drainage occurs and in sheetlfow parts of the meadow. 750 Comment
  UCR146708  Perideridia kelloggii Eric Knapp 2000-1 232 B Yuba Sierra Foothill Research and Extension Center 373 Comment
  CHSC84980  Perideridia lemmonii Lowell Ahart 2003-10-11 10624 Yuba West side of meadow, on the east side of a gravel road to the Rose Ranch, about 100 yards west of the paved road to Scales, about 1/2 mile south of the Rose Ranch, about 5 miles (air) northeast of Strawberry Valley, about 7 miles (air) southwest of La Porte. 1219 Comment
  JEPS95165  Perideridia lemmonii Lowell Ahart 1997-8-7 7824 Yuba about 3 air mi se of Challenge (on e side of the dirt road, near an unnamed stream, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  CHSC45876  Perideridia parishii subsp. latifolia Lowell Ahart 1980-8-12 2530 Yuba Near the edge of the dirt road, about 2 miles south-east of Woodleaf. 731 Comment
  SD236379  Persicaria hydropiper G. K. Helmkamp, E. A. Helmkamp 2006-10-10 11528 Yuba Northern Sierra Nevada Mountains Foothills: along Hwy Ca-49 just north of Nevaday county line at the Middle Yuba River Bridge. 451 Comment
  CAS-BOT-BC418857  Persicaria hydropiperoides Lowell Ahart 1977-8-31 s.n. Yuba 2 miles north-east of Marysville 30 Comment
  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
  CAS-BOT-BC419310  Persicaria punctata J. T. Howell; Gordon H. True 1969-6-24 5092 Yuba Vineyard Creek ca. 4 miles south of Smartville on Beale AFB Rd. 152 Comment
  CHSC108226  Petrorhagia dubia Lowell Ahart 2011-6-7 17388 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  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
  UCR196993  Petrorhagia dubia George K. Helmkamp, E. A. Helmkamp 2008-5-20 13462 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  UCR231321  Petrorhagia dubia George K. Helmkamp, E. A. Helmkamp 2011-5-6 17207 Yuba East edge of Sacramento Valley, junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg. ) of Wheatland 56 Comment
  SEINET5337023  Petrorhagia dubia C. Aarstad 1979-4-28 s.n. Yuba At junction of Rt. 20 and north fork of Yuba in Browns Valley 183 Comment
  UCD98374  Petrorhagia dubia Mary Anne Brayton 1964-5-2 22 Yuba Harry L. Englebright Dam, State Highway 20, 20 miles northwest of Marysville. 182 Comment
  UCSB50207  Petrorhagia dubia Gray, John 1976-4-10 Yuba Along roadside on Loma Rica Road; 4 miles south of Loma Rica 42 Comment
  JEPS107366  Phacelia cicutaria var. cicutaria Lowell Ahart 2005-3-11 11618 Yuba Rock outcrop, W of large rock outcrop, ca. 1/2 mi W of Marysville Rd, ca. 1/2 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/2 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 393 Comment
  UCD120315  Phacelia cicutaria var. cicutaria Kathleen Keliher 1975-4-1 52 Yuba Along four wheel drive road, one quarter of a mile from picnic area, H 8 - 11 project area, Sierra Foothill Field Station. 152 Comment
  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
  HSC10569  Phalaris aquatica T. F. Newman 1965-6-6 6512 Yuba Lone Tree Rd., 15 mi. NE of Marysville. Comment
  CHSC96991  Phalaris arundinacea L. P. Janeway; Lowell Ahart, Linnea Hanson 2007-7-13 9117 Yuba Northern High Sierra Nevada. Plumas National Forest; Hampshire Creek meadow, 1.5 air km east of Clipper Mills and 1.8 air km northwest of North Yuba River. Just east of the road crossing the meadow. 1026 Comment
  UCD89371  Phalaris paradoxa Beecher Crampton 1957-6-5 4145 Yuba 1/2 mile W of Oregon House Post Office. Comment
  UCD89386  Phalaris paradoxa Beecher Crampton 1971-6-18 8731 Yuba 3.5 miles E of Browns Valley, E of Sicard Flat. Comment
  CAS-BOT-BC72716  Philadelphus lewisii Lewis S. Rose 1939-6-7 39237 Yuba N. Fork of Feather River, 3 mi. S. of Pulga 609 Comment
  UCD82845  Philadelphus lewisii Robin McMaster 1973-6-24 499 Yuba Oregon Creek Campground. Comment
  RSA0059870  Philadelphus lewisii R. C. Bacigalupi 1927-7-2 1594 Yuba Highway to Downieville about 8 mi NE of Camptonville. Comment
  JEPS71087  Phlox gracilis Willis L. Jepson 1892-4-9 15052 Yuba Smartsville Comment
  UCD118251  Phlox speciosa R. O. Hanes 1992-4-1 45 Yuba Plumas Forest. 731 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
  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
  CAS-BOT-BC134914  Phoradendron bolleanum C. B. Wolf; E. R. Johnson 1934-10-4 6158 Yuba N side of Indiana Creek, 1.7 mi W of Indiana Ranch, Sierra Foothills 548 Comment
  CHSC69148  Physocarpus capitatus Lowell Ahart 1997-8-9 7839 Yuba Along a unnamed creek, about two miles (air) southeast of Woodleaf. 701 Comment
  CHSC45919  Pickeringia montana Lowell Ahart 1976-5-27 1131 Yuba Near the edge of Ponderosa Way, near the Brownsville Dump, west of Brownsville. 609 Comment
  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
  CAS-BOT-BC79015  Pinus ponderosa Alice Eastwood 1918-4-7 6805 Yuba Camptonville Comment
  UCD135105  Pinus sabiniana Barbara Yungert 1974-6-5 192 Yuba Sierra Foothill Field Station. 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
  UCR196983  Pisum sativum George K. Helmkamp, E. A. Helmkamp 2008-5-20 13468 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  SD237382  Plagiobothrys David Charlton 2005-5-16 8012 Yuba Sacramento Valley: Yuba Gold Field; just S of Yuba River; ca. 7.5 miles ENE of Marysville; N of Beale Air Force Base; Survey area ca. 2 mi by 1 mi (Browns Valley 7.5'Q) 35 Comment
  UCD37847  Plagiobothrys Beecher Crampton 1962-4-24 6247 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  SJSU8060  Plagiobothrys acanthocarpus J. B. Willis Jr. 1969-4-19 52 Yuba 5 mi E of Linda, N edge of Beale Air Base on Hammonton Rd Comment
  SBBG33961  Plagiobothrys bracteatus L. S. Rose 1967-6-13 67128 Yuba Camp Far West Reservoir, 7 mi NE of Wheatland 121 Comment
  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
  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
  JEPS94320  Plagiobothrys fulvus Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7728 Yuba about 17 mi ne of Marysville (n of the poor dirt road, s of Dry Creek, about 1 1/4 mi e of Scott Forbes Road (Long Bar Road)) 137 Comment
  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
  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
  CHSC97631  Plagiobothrys greenei Lowell Ahart 2007-5-12 13778 Yuba Scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113632  Plagiobothrys greenei Lowell Ahart 2007-5-12 13778 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UCR234209  Plagiobothrys greenei George K. Helmkamp, E. A. Helmkamp 2011-4-10 17167 Yuba Sacramento Valley, along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland 44 Comment
  CAS-BOT-BC228240  Plagiobothrys hispidulus Lowell Ahart 1980-8-12 2569 Yuba Along Slate Creek 1250 Comment
  CDA40653  Plagiobothrys stipitatus var. micranthus L. Ahart 2002-6-3 9688 Yuba On the bottom of the pond spillway, second small man made pond, about 1/4 mile south of Long Ravine Road, about 1/8 mile east of the intersection of Camp Far West Road and Long Ravine Road there is a poor Texas gate on the south side of the road, north of Camp Far West Reservoir. Comment
  CHSC115204  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2015-4-30 20132 Yuba On the west side of the quarry, about 1 1/4 miles (air) southwest of the Bullard Bar Dam, about 3 miles (air) northeast of Dobbins. 709 Comment
  JEPS118288  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2011-6-7 17387 Yuba Bottom of a depression at the base of cliffs, to the north is a huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  JEPS123937  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2015-4-30 20132 Yuba About 1 1/4 mile (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. Comment
  RSA0107418  Plagiobothrys stipitatus var. micranthus George K. Helmkamp, Amy Barnes 2013-3-28 20250 Yuba Eastern Sacramento Valley: northbound exit road from CA-65, connecting with Forty Mile Road. 30 Comment
  RSA726413  Plagiobothrys stipitatus var. micranthus L. Ahart 2007-5-12 13779 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  RSA795347  Plagiobothrys stipitatus var. micranthus L. Ahart 2011-6-7 17387 Yuba Bottom of a depression at the base of cliffs, to the north is a huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 air miles northeast of Marysville. 66 Comment
  SEINET13203148 Image available Plagiobothrys stipitatus var. micranthus George K. Helmkamp, Amy Barnes 2013-1 20250 Yuba Eastern Sacramento Valley: northbound exit road from CA-65, connecting with Forty Mile Road (Olivehurst 7.5' Q.) 30 Comment
  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
  CHSC97480  Plantago coronopus Lowell Ahart 2007-5-12 13801 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  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
  CHSC45085  Plantago erecta Barbara Yungert 1973-5-3 109 Yuba West of road near cattle guard and U. C. sign, west of station, Sierra Foothill Field Station. Comment
  CHSC97478  Plantago erecta Lowell Ahart 2007-5-12 13803 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC97493  Plantago lanceolata Lowell Ahart 2007-5-14 13867 Yuba Along the dirt road, near the power tower, power tower is about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  RSA726804  Plantago lanceolata L. Ahart 2007-6-30 14231 Yuba Near a new ditch, near and east of a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  UCD124618  Plantago lanceolata Barbara Yungert 1974-5-6 119 Yuba In backyard of house, south of headquarters, Sierra Foothill Field Station. 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
  UC912454  Plectritis ciliosa subsp. ciliosa Herbert L. Mason 1927-5-11 3731 Yuba near Dobbins 457 Comment
  CAS-BOT-BC244387  Poa annua Peter Rubtzoff 1972-4-4 6723 Yuba U. C. Sierra Foothill Range Field Station, N of Smartville. Gravelly bar of the Yuba River Comment
  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
  UCD90347  Poa annua Beecher Crampton 1962-4-24 6286 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. 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
  CHSC8576  Poa pratensis Dave Isle 1969-4-29 428 Yuba On a lawn two doors N. of the Chevron station (W. side of street) at the E.-7th St. intersection in Marysville. 57 Comment
  UCD91883  Poa pratensis Beecher Crampton 1962-4-24 6288 b Yuba 5 miles east of Browns Valley, Sierra Foothill Range Field Station. Comment
  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
  UCD92100  Poa trivialis Beecher Crampton 1966-6-14 7756 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  UCR168804  Pogogyne ziziphoroides David Charlton 2005-5-16 8027 B Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  UCSC008274  Pogogyne zizyphoroides Lowell Ahart 2007-5-12 13797 Yuba 28 Comment
  UCD112040  Polygala cornuta Christopher Mallek 2008-5-5 IC3- 1 Yuba Indiana Creek. 617 Comment
  CAS-BOT-BC170372  Polygala cornuta var. cornuta Rimo Bacigalupi 1927-7-2 1588 Yuba 1 mile west of Camptonville Comment
  CAS-BOT-BC170373  Polygala cornuta var. cornuta Clarence R. Quick 1966-6-28 66 -32 Yuba Challenge Ranger Station, Challenge Comment
  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
  JEPS113618  Polygonum arenastrum Lowell Ahart 2007-5-12 13809 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  CHSC97454  Polygonum aviculare Lowell Ahart 2007-5-14 13879 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  CHSC97464  Polygonum aviculare Lowell Ahart 2007-5-12 13809 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  UCR191119  Polygonum aviculare George K. Helmkamp, E. A. Helmkamp 2007-8-29 12825 Yuba Northern Sierra Nevada Mountains Foothills, Mountain House Road 0.6 mile west of the Sierra Co. line; Sleighville area beside Willow Creek 1021 Comment
  UCD100028  Polygonum aviculare subsp. depressum G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12825 Yuba Northern Sierra Nevada Mountains Foothills: Mountain House Road 0.6 mile west of the Sierra Co. line; Sleighville area beside Willow Creek. 1021 Comment
  CAS-BOT-BC414362  Polygonum californicum J. T. Howell; Gordon H. True 1971-5-26 s.n. Yuba 8 mi. e. of Marysville 30 Comment
  RSA654916  Polygonum californicum Beecher Crampton 1952-10-31 901 Yuba Yolo County: Dry adobe, alkaline soil, where water has stood, Yolo Causeway, 5 miles E of Davis Comment
  JEPS113406  Polygonum convolvulus Lowell Ahart 2007-5-14 13842 Yuba East and west of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 20 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  UCR179302  Polygonum hydropiper George K. Helmkamp, E. A. Helmkamp 2006-10-10 11528 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
  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
  CHSC45953  Polygonum minimum Lowell Ahart 1980-8-12 2542 Yuba Growing on a large gravel bar that is formed from a debris dam across Slate Creek, a little below where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  CHSC45470  Polygonum parryi Lowell Ahart 1980-8-12 2541 Yuba Growing on a large gravel bar that is formed from a debris dam across Slate Creek, a little below where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  JEPS50639  Polygonum persicaria W. L. Jepson 1934-7-29 16755 Yuba Marysville Comment
  RSA10979  Polygonum persicaria Carl B. Wolf 1927-11-5 1438 Yuba Eight miles from Marysville on road to Browns Valley. Comment
  JEPS35373  Polypodium calirhiza Mrs. S. M. Rust Yuba Comment
  CAS-BOT-BC232956  Polypogon australis Peter Rubtzoff 1972-4-4 6725 Yuba UC Sierra Foothill Range Field Station, N of Smartville Comment
  UCD90518  Polypogon australis Beecher Crampton 1965-6-17 7374 Yuba Ca. 3/4 mile north of Stanfield Hill, Willow Glen Creek. 396 Comment
  CHSC108183  Polypogon interruptus Lowell Ahart 2011-6-7 17426 Yuba East of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC69159  Polypogon interruptus Lowell Ahart 1997-8-7 7827 Yuba On the west side of the dirt road, near an unnamed stream, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  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
  UCD149780  Polypogon interruptus William Anderson 1965-6-19 s.n. Yuba Between Rackerby and Challenge. Comment
  UCD51641  Polypogon interruptus Beecher Crampton 1962-4-24 6310 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  CAS-BOT-BC232533  Polypogon maritimus Beecher Crampton 1957-6-5 4114 Yuba Along State Highway 20, 10 miles E of Marysville Comment
  CAS-BOT-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
  JEPS98576  Polypogon maritimus Lowell Ahart 2000-6-11 8465 Yuba 6 mi (air) S of Smartville (bottom 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
  UCD91191  Polypogon maritimus Beecher Crampton 1965-6-17 7373 Yuba Ca. 3/4 mile north of Stanfield Hill. Willow Glen Creek. 396 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
  UCD91288  Polypogon monspeliensis Beecher Crampton 1957-6-5 4111 Yuba Along State Hwy. 20, 5 miles east of 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
  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
  UCD136497  Polystichum imbricans subsp. curtum G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12824 Yuba Northern Sierra Nevada Mountains: Mountain House Road 0.6 miles west of the Sierra Co. line; Sleighville area beside Willow Creek. 1021 Comment
  UCR191111  Polystichum imbricans subsp. curtum George K. Helmkamp, E. A. Helmkamp 2007-8-29 12824 Yuba Northern Sierra Nevada Mountains Foothills, Mountain House Road 0.6 mile west of the Sierra Co. line; Sleighville area beside Willow Creek 1021 Comment
  JEPS124290  Polystichum imbricans subsp. imbricans Lowell Ahart 2015-10-23 20579 Yuba About 1/8 mile southwest of the Slate Creek Dam, about 2 1/8 miles (air) northeast of La Porte Road, about 6 miles (air) southwest of La Porte. Comment
  UCD162088  Polystichum imbricans subsp. imbricans G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12823 Yuba Northern Sierra Nevada Mountains: Mountain House Road 0.6 miles west of the Sierra Co. line; Sleighville area beside Willow Creek. 1021 Comment
  UCR191116  Polystichum imbricans subsp. imbricans George K. Helmkamp, E. A. Helmkamp 2007-8-29 12823 Yuba Northern Sierra Nevada Mountains Foothills, Mountain House Road 0.6 mile west of the Sierra Co. line; Sleighville area beside Willow Creek 1021 Comment
  CAS-BOT-BC76760  Polystichum imbricans subsp. imbricans W. R. Dudley 1893-6-15 s.n. Yuba Unspecified. Comment
  CHSC69126  Polystichum munitum Lowell Ahart 1997-8-7 7830 Yuba On the west side of the dirt road, on the south side of Indian Creek, about 3 miles (air) east of Challenge. 762 Comment
  CHSC97753  Polystichum munitum Lowell Ahart 2007-11-1 14530 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  JEPS95098  Polystichum munitum Lowell Ahart 1997-8-7 7830 Yuba ca. 3 (air) mi. e. Challenge (on w. side of dirt rd. on s. side of Indian Creek) 762 Comment
  CAS-BOT-BC102412  Populus fremontii A. Eastwood 1919-9-1 s.n. Yuba Marysville, along levee Comment
  CAS-BOT-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-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
  CAS-BOT-BC453843  Potamogeton nodosus W. V. Middlekauff 1960-6-19 s.n. Yuba 3 miles n.w. of Rio Oso Post Office Comment
  CAS-BOT-BC454055  Potamogeton pusillus subsp. pusillus W. V. Middlekauff 1955-7-4 s.n. Yuba 3 miles n.w. of Rio Oso Post Office Comment
  CDA854  Potamogeton pusillus var. pusillus L. Ahart 2002-6-3 9687 Yuba Small man made pond, about 1/4 mile S of Long Ravine Road, about 1/8 mile E of the intersection of Camp Far West Road and Long Ravine Road there is a poor Texas gate on the S side of the road, N of Camp Far West Reservoir. Comment
  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
  UCR194910  Potentilla glandulosa subsp. glandulosa George K. Helmkamp, E. A. Helmkamp 2007-5-26 12133 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville 802 Comment
  UCD38715  Prunella vulgaris Beecher Crampton 1957-6-5 4138 Yuba 1 mile east of Stanfield Hill. Comment
  CAS-BOT-BC154618  Prunus subcordata Alice Eastwood 1930-4-12 17929 Yuba Near summit of Texas hill Comment
  UC1128490  Prunus subcordata G. Burks 1933-7-26 14 Yuba 1 mi s of Camptonville (Tahoe National Forest); Tahoe National Forest 822 Comment
  UCD113515  Prunus subcordata Kathleen Keliher 1975-5-6 97 Yuba near Frenchtown Road, north of Dobbins. 365 Comment
  CHSC108219  Pseudognaphalium luteoalbum Lowell Ahart 2011-6-7 17376 Yuba West of a willow shrub, Just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC97231  Pseudognaphalium luteoalbum Lowell Ahart 2007-6-22 14222 Yuba Bottom of a new ditch, near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  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
  CHSC69412  Pseudognaphalium thermale Lowell Ahart 1997-8-30 7881 Yuba On the west side of the dirt road, near a road culvert, about one mile (air) south of Woodleaf. 944 Comment
  JEPS94448  Pseudognaphalium thermale Lowell Ahart 1997-8-30 7881 Yuba about 1 air mi s of Woodleaf (on the w side of the dirt road, near a road culvert) 944 Comment
  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-BC361868  Psilocarphus oregonus Lowell Ahart 2007-5-12 13774 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  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
  CAS-BOT-BC361867  Psilocarphus oregonus John Thomas Howell; Gordon H. True 1971-5-26 47609 Yuba About 8 miles east of Marysville 30 Comment
  SEINET7042647  Psilocarphus oregonus A. G. Vestal 1963-5-30 s.n. Yuba Weedy depression near Dry Creek and north oh Sicard Flat. Smartville quadrangle UTM Zone 10, 642203mE, 4345148mN. Comment
  CAS-BOT-BC361914  Psilocarphus tenellus Lowell Ahart 2007-5-12 13773 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  CHSC73409  Psilocarphus tenellus var. tenellus B. Castro; L. Gehrung 1995-8-9 601 Yuba Fish Meadow. Ca 5 air mi NE of Strawberry Valley, and ca 1.5 mi E of Slate Ck. In meadow on unnamed stream flowing S into Canyon Ck, ca 500 ft W of USFS Rd 20N35 via unnamed dirt rd. 1249 Comment
  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
  CHSC43544  Pteridium aquilinum var. pubescens Lowell Ahart 1979-6-3 1923 Yuba About 1 mile south of Challenge. 670 Comment
  SEINET7085243  Pterospora andromedea Steven R. Hill 2010-7-17 38554 Yuba Along La Porte Road, 950 feet northeast of Travis Saddle and the road to Sly Creek Reservoir Dam. 13.6 kilometers north-northwest of Camptonville. Just southwest of Strawberry Valley Sierra Nevada. Coordinate Datum: WGS84/NAD83. 1103 Comment
  CHSC90343  Pterostegia drymarioides Lowell Ahart 2005-3-11 11617 Yuba Large rock outcrop, south slope, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 395 Comment
  JEPS107404  Pterostegia drymarioides Lowell Ahart 2005-3-11 11617 Yuba Large rock outcrop, south slope, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica 395 Comment
  CAS-BOT-BC105017  Quercus X morehus C. R. Quick 1947-10-2 47 -85 Yuba 8.3 mi NE of Brown's Valley (General Store) Comment
  CAS-BOT-BC105018  Quercus X morehus C. R. Quick 1947-10-2 47 -84 Yuba 9-10 mi NE of Brown's Valley, on road to Challenge, just W of Stanfield Hill Comment
  UCD46975  Quercus X morehus H. H. Keifer 1953-10-11 s.n. Yuba Shrub 1 mile north of Oregon House, Yuba County, California. Comment
  UCD40460  Quercus chrysolepis Rodney Gale Myatt 1971-11-1 1524 -5 Yuba Oregon Creek-Middle Fork Yuba River. Yuba River where smaller Oregon Creek is confluent. 640 Comment
  UCD40469  Quercus chrysolepis Rodney Gale Myatt 1971-11-1 1590 -16 Yuba Oregon Creek-Middle Fork Yuba River. Yuba River where smaller Oregon Creek is confluent. 640 Comment
  UCD82652  Quercus chrysolepis Rodney Gale Myatt 1971-11-1 1590 -5 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
  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
  CHSC107279  Quercus durata var. durata L. P. Janeway 2011-8-10 10645 Yuba Northern High Sierra Nevada. Plumas National Forest; serpentine slope on southeast side of Road 19N04 1.3 km north of Challenge-La Porte Road; 2.2 air km northeast of Challenge. 1032 Comment
  CHSC63255  Quercus durata var. durata Lowell Ahart 1994-6-5 7306 Yuba On the north side of Costa Creek, on the north side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  UCD80342  Quercus garryana var. breweri CNPS SN Foothill Team 2005-6-1 SNNR 0128 Yuba BLM, Ponderosa Landfill. 670 Comment
  CDA22094  Quercus kelloggii H. H. Keifer 1953-10-11 Yuba One mile north of Oregon House. 0 Comment
  UCD46660  Quercus kelloggii Barbara Yungert 1974-6-5 197 Yuba East Road 4, L 1-21 project area, Sierra Foothill Field Station, Yuba County, California. Comment
  CAS-BOT-BC94995  Quercus lobata R. C. Wenk 2008-7-18 976 Yuba 5 mi. from Highway 20 going east from Marysville, along Peoria and Scott Forbes Roads 204 Comment
  UCD112042  Quercus wislizeni Christopher Mallek 2008-5-5 IC3- 11 Yuba Indiana Creek. 617 Comment
  JEPS107413  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
  JEPS107434  Quercus wislizeni var. wislizeni Lowell Ahart 2005-3-11 11621 Yuba On E side of the poor dirt road, ca. 1/2 mi W of Marysville Rd, ca. 1/4 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/4 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 344 Comment
  CAS-BOT-BC379185  Ranunculus aquatilis var. aquatilis Gordon H. True 1965-3-25 1776 Yuba Rock Creek at old McCourtney Rd. crossing, Nevada Co., and 14 mi E of Wheatland (Yuba Co.) 152 Comment
  CAS-BOT-BC378952  Ranunculus arvensis John Thomas Howell; Gordon H. True 1971-5-26 47607 Yuba 8 mi east of Marysville 30 Comment
  UCD95785  Ranunculus arvensis Beecher Crampton 1957-6-5 4127 Yuba 2.6 miles northeast of Brown's Valley Post Office. Comment
  CAS-BOT-BC523900  Ranunculus bonariensis var. trisepalus George K. Helmkamp; Amy Barnes 2013-3-28 20251 Yuba Eastern Sacramento Valley: northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  CHSC97649  Ranunculus bonariensis var. trisepalus Lowell Ahart 2007-5-12 13811 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113475  Ranunculus bonariensis var. trisepalus Lowell Ahart 2007-5-12 13811 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  SD241160  Ranunculus bonariensis var. trisepalus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17205 Yuba East edge of Sacramento Valley: junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47a^z) of Wheatland (Camp Far West 7.5'Q) 56 Comment
  SD248487  Ranunculus bonariensis var. trisepalus George K. Helmkamp, Elizabeth A. Helmkamp 2011-5-6 17205 Yuba East edge of Sacramento Valley: junction of Camp Far West Road and Spenceville Road, 5.4 miles NE (47a^z) of Wheatland (Camp Far Weset 7.5'Q) 56 Comment
  UCD81501  Ranunculus californicus Christopher Michael Bronny 2009-4-1 13 Yuba Oat Hills' area of Sierra Nevada foothills. 213 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
  CHSC97672  Ranunculus muricatus Lowell Ahart 2007-5-12 13812 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113622  Ranunculus muricatus Lowell Ahart 2007-5-12 13812 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  SEINET5718617 Image available Ranunculus muricatus Gerald Pullman 1974-1 28 Yuba 3 miles 20 degrees east of north from Station Headquarters, University of California Sierra Foothill Range Field Station.; UC Foothill Field Station 457 Comment
  JEPS87732  Ranunculus occidentalis Lowell Ahart 1994-7-27 7373 Yuba about 4 mi ne Strawberry Valley (e side of La Porte Rd, in about center of meadow); Schwartz Meadow 1219 Comment
  UCD37883  Ranunculus occidentalis Beecher Crampton 1962-4-24 6307 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD96791  Ranunculus occidentalis R. O. Hanes 1992-4-6 47 Yuba Plumas Forest. 731 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
  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
  UCR131694  Rhamnus californica subsp. tomentella C. B. Wolf 1927-11-6 1445 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
  CHSC100772  Rhamnus crocea L. P. Janeway 2008-5-11 9355 Yuba Northern High Sierra Nevada. About 0.8 km north-northeast of Challenge; Golden Gate Ravine side of the ridge between that and Jordan Creek; west side of Road 19N04 1.1 km north-northwest of Challenge-La Porte Road. Near head of dry northwest-sloping swale. 994 Comment
  CHSC113645  Rhamnus ilicifolia L. P. Janeway 2014-5-12 11250 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  JEPS117940  Rhamnus ilicifolia L. P. Janeway 2008-5-11 9355 Yuba About 0.8 km north-northereast of Challenge of Challange-La Porte Road (Golden Gate Ravine side of the ridge between that and Jordan Creek; west side of Road 19N04 1.1 km north-northwest); Northern High Sierra Nevada 994 Comment
  RSA754447  Rhamnus ilicifolia L. P. Janeway 2008-5-11 9360 Yuba Northern High Sierra Nevada: In the NW head of Slapjack Creek; along Road 19N34, 1.3 road km SE of Challenge-La Porte Road; about 1.2 km SSE of Woodleaf. 940 Comment
  RSA7702  Rhamnus ilicifolia Carl B. Wolf 1927-11-6 1448 Yuba Along the Yuba River near bridge on the Browns Valley to Smartsville Road. Comment
  UC1121897  Rhamnus ilicifolia M. A. Elvin 1933-7-7 35 Yuba 1.5 mi s Virginia Ranch; Smartsville Quad. 274 Comment
  UC1311875  Rhamnus ilicifolia B. F. Smith 1965-7-20 57 Yuba 670 Comment
  SEINET10493671  Rhamnus ilicifolia Mary Susan Taylor, L. Hanson 1981-4-15 Taylor 3538 Yuba T19N R7E ne/nw sec 17, Clipper Mills quad. S side of Rd 19N44, in Golden Gate Ravine, ca. 1.5 mi SW of Woodleaf. 2800 ft. 853 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
  POM243754  Rhamnus tomentella subsp. tomentella Carl B. Wolf, E. R. Johnson 1934-10-4 6155 Yuba Texas Hill, 2 miles from Dobbins. 457 Comment
  RSA724912  Rhamnus tomentella subsp. tomentella L. P. Janeway 2006-5-24 8625 Yuba Northern Sierra Nevada Foothills, E side of Ponderosa Way 1.3km N of La Porte Road and Brownsville. 686 Comment
  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
  RSA7868  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1927-11-6 1447 Yuba Along the Yuba River near bridge on the Browns Valley to Smartsville Road. Comment
  RSA7869  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1927-11-6 1446 Yuba Along the Yuba River near bridge on the Browns Valley to Smartsville Road. Comment
  UC592796  Rhamnus tomentella subsp. tomentella unknown 1927-11-6 1447 Yuba Brownsville Valley to Smartsville road (along left bank of Yuba River, near bridge); Yuba River 152 Comment
  UC592956  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1930-10-12 Yuba near bridge on the Brown's Valley to Smartsville road (along Yuba River, Sierra Nevada foothills); Sierra Nevada, Yuba River 152 Comment
  CHSC112069  Rhododendron occidentale L. P. Janeway 2014-8-26 11573 Yuba Northern High Sierra Nevada. Plumas National Forest; about 50 m east of Oregon Hill Road, about 1 km south of Little Oregon Creek; 8 air-km southeast of Challenge. Comment
  RSA471033  Rhododendron occidentale var. californicum Anstruther Davidson 1876-7-7 s.n. Yuba Strawberry Valley Comment
  CAS-BOT-BC199743  Rhododendron occidentale var. paludosum Lloyd W. Swift 1932-5-9 64 Yuba Plumas National Forest. S. of Challenge 762 Comment
  JEPS127617  Rhynchospora capitellata L. P. Janeway 2015-7-1 11796 Yuba Plumas National Forest; Headwaters of Cottage Creek, one of a series of meadows; 0.15 km SW of Oregon Hill Road, 1.3 air km NE of Oregon Peak. Comment
  CHSC45976  Ribes roezlii Lowell Ahart 1972-4-28 90 Yuba Growing on a dry open mountain side, about 3 air miles north-east of Strawberry Valley, near Slate Creek, about 10 air miles south of La Porte. 914 Comment
  UC1127537  Ribes roezlii M. A. Elvin 1933-7-10 47 Yuba 2 mi s Brownsville; Smartsville Quadrangle 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
  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
  JEPS110504  Rorippa curvisiliqua var. occidentalis Robert E. Preston 1997-10-29 1057 Yuba Beale Air Force Base, E of Golf Course. 39 Comment
  CHSC83044  Rorippa curvisiliqua var. orientalis Lowell Ahart 2002-10-9 9953 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
  CHSC97750  Rorippa curvisiliqua var. orientalis Lowell Ahart 2007-11-8 14587 A Yuba North of the waterway between the headland and the large island, on the strand of Camp Far West Reservoir, about 1/4 mile south of Rock Creek, about 1/2 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  JEPS103442  Rorippa curvisiliqua var. orientalis Lowell Ahart 2002-10-9 9953 Yuba Area E of a spring, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CHSC115285  Rosa bridgesii Lowell Ahart 2015-4-30 20124 Yuba Open forest, on the north side of the gravel road, about 30 yards northeast of the gate, about 3/4 mile (air) southeast of Woodleaf. 948 Comment
  CHSC43460  Rosa bridgesii Lowell Ahart 1973-5-6 218 Yuba About 1 mile north of Challenge. 762 Comment
  CHSC62494  Rosa bridgesii B. Castro 1987-5-8 73 Yuba Ca 3.2 road mi SW of bridge over Slate Creek, near North Star. Along roadside. 1249 Comment
  CHSC80967  Rosa bridgesii Lowell Ahart 2001-8-2 9052 Yuba On the south edge of the dirt road, Peterson Ridge Road, about 2 miles northeast of Oregon Hill Road, about 3 miles (air) southeast of Challenge. 701 Comment
  CHSC84149  Rosa bridgesii Lowell Ahart 2003-7-2 10342 Yuba About 200 yards south of the 4-H Camp, on the west side of Oregon Hill Road, about 1/2 mile north of Marysville Road, about 2 miles (air) northeast of Dobbins. 815 Comment
  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
  JEPS102599  Rosa bridgesii Lowell Ahart 2001-8-2 9052 Yuba On the south edge of the dirt road, Peterson Ridge Road, about 2 miles NE of Oregon Hill Road, about 3 miles (air) SE of Challenge. 701 Comment
  CDA3958  Rosa eglanteria T. C. Fuller, H. K. Wagnon 1964-5-18 11987 Yuba North of Highway 20 to Grass Valley, 0.8 mile east of Smartsville. 0 Comment
  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
  CHSC63167  Rosa pisocarpa Lowell Ahart 1994-6-27 7383 Yuba Along the south side of a stream, east of the logging road, east of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  CHSC84990  Rosa pisocarpa subsp. ahartii Lowell Ahart 2003-10-11 10623 Yuba On the west margins of a meadow, on the east side of a gravel road to the Rose Ranch, about 100 yards west of the paved road to Scales, about 1/2 mile south of the Rose Ranch, about 5 miles (air) northeast of Strawberry Valley, about 7 miles (air) southwest of La Porte. 1219 Comment
  CAS-BOT-BC146875  Rosa rubiginosa H. K. Wagnon; T. C. Fuller 1964-5-18 11987 Yuba N. of Hwy 20 to Grass Valley, 0.8 mi. e. of Smartsville Comment
  SBBG50611  Rosa rubiginosa P. Sawtelle 1974-5-12 32 Yuba Peoria Rd, 0.25 mi from St Hwy 20 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
  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
  RSA79048  Rubus discolor E. K. Balls, Percy C. Everett 1952-10-15 18218 Yuba 5.9 miles E and N of Marysville. Hwy 20 to Smartsville. 152 Comment
  CHSC97120  Rubus laciniatus Lowell Ahart 2007-8-7 14409 Yuba Hampshire Creek Meadow, about 20 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS113573  Rubus laciniatus Lowell Ahart 2007-8-7 14409 Yuba Hampshire Creek Meadow, about 20 yards east of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  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
  UCD113996  Rubus ursinus Beecher Crampton 1972-6-20 8818 Yuba Yuba County, ca. 2 miles west of Sicard Flat. 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
  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
  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
  CAS-BOT-BC445724  Sagittaria latifolia Lowell Ahart 1977-9-25 s.n. Yuba Sam Shintaffer Farm, 2 mi. northeast of Marysville. 35 Comment
  JEPS95800  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
  CHSC76297  Sagittaria montevidensis subsp. calycina Lowell Ahart 1999-9-17 8237 Yuba In a rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  JEPS95980  Sagittaria montevidensis subsp. calycina Lowell Ahart 1999-9-17 8237 Yuba south of Woodruff Lane; just east of Mathews Road; east of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  CAS-BOT-BC267096  Sagittaria sanfordii W. V. Middlekauff 1955-7-4 s.n. Yuba 3 miles NW of Rio Oso Post Office 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-BC104030  Salix gooddingii Saichi Kawahara 1968-4-13 288 Yuba Park's Bar, north bank of the Yuba River at highway 20 91 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
  JEPS113097  Salix laevigata Lowell Ahart 2007-4-17 13683 Yuba East of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  JEPS120943  Salix laevigata Lowell Ahart 2013-4-23 18565 Yuba Along Costa Creek, about 100 yards E of where the paved road crosses Costa Creek, about 2.5 air miles SE of the Forbestown Store. Comment
  CHSC108846  Salix lasiolepis Lowell Ahart 2012-2-28 17757 Yuba On the north side of Fruitland Road, about 13 miles northeast of Marysville. 32 Comment
  JEPS119505  Salix lasiolepis Lowell Ahart 2012-2-28 17758 Yuba About 1/2 mile east of Ramirez Road, about 13 miles northeast of Marysville. Comment
  SBBG126080  Salix lasiolepis L. Ahart 2012-2-28 17757 Yuba N side of Fruitland Rd, ca 0.5 mi E of Ramirez Rd, ca 13 mi NE of Marysville 32 Comment
  CAS-BOT-BC107372  Salix lasiolepis var. lasiolepis A. A. Heller 1905-3-21 7559 Yuba Marysville Comment
  CHSC98985  Salix lasiolepis var. lasiolepis Lowell Ahart 2008-5-14 14763 Yuba On the south side of Costa Creek, about 200 yards east of Forbestown Road, about 3 miles (air) east of Forbestown. 837 Comment
  JEPS114710  Salix lasiolepis var. lasiolepis Lowell Ahart 2008-5-14 14763 Yuba On the south side of Costa Creek, about 200 yards east of Forbestown Road, about 3 miles (air) east of Forbestown 837 Comment
  UC1134923  Salix melanopsis M. A. Elvin 1933-7-1 32 Yuba Virginia Ranch Smartsville Quad. 457 Comment
  CDA20939  Salsola ryanii P. Akers 2002-9-19 RT- 10 -2 Yuba Sacramento Valley; Smartville Rd., 0.3 mi. N of Daugherty. 30 Comment
  UCD141973  Salsola ryanii P. Akers 2002-9-19 RT 10 -2 Yuba Sacramento Valley. Smartville Rd., 0.3 mi. N of Daugherty. 30 Comment
  CDA20941  Salsola tragus P. Akers 2002-9-19 RT- 07 -1 Yuba Sacramento Valley; RR crossing at Main St., Wheatland. 30 Comment
  UCD112043  Salvia sonomensis Christopher Mallek 2008-5-5 IC3- 15 Yuba Indiana Creek. 617 Comment
  UCR169027  Sambucus mexicana David Charlton 2005-5-16 8023 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  UCD137217  Sambucus nigra subsp. caerulea Barbara Yungert 1974-5-14 151 Yuba near gate to Meathook project area, Sierra Foothill Field Station. Comment
  CDA7196  Sanguisorba minor subsp. muricata L. P. Janeway 2006-5-24 8634 Yuba Northern Sierra Nevada Foothills; South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. Comment
  JEPS95414  Sanguisorba minor subsp. muricata Lowell Ahart 1994-6-27 7374 Yuba 4 mi NE of Strawberry Valley (center of Schwartz Meadow, E side of La Porte Road) 1219 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
  JEPS252  Sanicula bipinnata Willis L. Jepson 1892-4-8 14180 Yuba Cabbage Patch 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
  UCR206957  Sanicula bipinnatifida George K. Helmkamp, E. A. Helmkamp 2009-5-28 14821 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 Comment
  CAS-BOT-BC223236  Sanicula bipinnatifida Alice Eastwood 1921-5-22 10543 Yuba Los Vergils Comment
  UCD127949  Sanicula bipinnatifida Barbara Yungert 1974-4-16 42 Yuba Campbell Valley, Sierra Foothill Field Station. Comment
  CHSC100722  Sanicula bipinnatifida var. flava L. P. Janeway 2008-5-11 9362 Yuba Northern High Sierra Nevada. In the northwestern head of Slapjack Creek; along Road 19N34, 1.3 road km southeast of Challenge-La Porte Road; about 1.2 km south-southeast of Woodleaf. 940 Comment
  CHSC112864  Sanicula bipinnatifida var. flava L. P. Janeway 2014-4-24 11235 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  CHSC70779  Sanicula graveolens B. Castro; L. Gehrung 1995-6-2 572 Yuba Ca 2 air mi SE of Strawberry Valley, 0.5 to 0.8 mi N of the N Fork Yuba River, on S-trending ridge to Weed Point. Along both sides of USFS Rd 20N81. 1021 Comment
  JEPS88901  Sanicula tuberosa Lowell Ahart 1994-6-5 7302 Yuba about 3 air mi e Forbestown (on s side of Costa Creek, on e side of Forbestown Road); Costa Creek, Forbestown Road 853 Comment
  JEPS100351  Saponaria officinalis Dean W. Taylor 2001-6-21 17810 Yuba canyon of the North Fork Yuba River, near the confluence of Canyon Creek at Kelly Bar 609 Comment
  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
  UCD128137  Scandix pecten-veneris Barbara Yungert 1974-4-25 82 Yuba SC-14 project area, Sierra Foothill Field Station. Comment
  CHSC70775  Schoenoplectus acutus var. occidentalis L. P. Janeway 1997-6-26 5174 Yuba South side of Woodruff Lane, 0.1 mi west of Mathews Lane; about 4 1/2 mi north-northeast of Marysville. 23 Comment
  UC683301  Scirpus acutus var. occidentalis Alan A. Beetle 1941-6-26 2732 Yuba on rte 99E 10 mi n Lincon [sic] (Lincoln?); n of Lincon [sic] (Lincoln ?) Comment
  CHSC63197  Scirpus microcarpus Lowell Ahart 1994-6-27 7388 Yuba Near the north-east side of Schwartz Meadow, on the eastside of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  UC1552704  Scirpus microcarpus Frederica Bowcutt 1985-6-8 590 Yuba 1 air mi se Camptonville (12 air mi n of Nevada City, along Oregon Creek, Tahoe National Forest); Tahoe National Forest, along Oregon Creek 762 Comment
  UCD33109  Scirpus setaceus Beecher Crampton 1966-6-14 7752 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  CAS-BOT-BC243533  Scribneria bolanderi Beecher Crampton 1957-6-5 4147 Yuba 1/2 mile west of Oregon House Post Office Comment
  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
  CHSC107991  Scutellaria californica Matt Simenc; M. Williams 2011-7-8 23 Yuba Northern Sierra Nevada. Growing throughout rocky dry serpentine drainages and outcrops. 846 Comment
  CHSC51236  Scutellaria californica Lowell Ahart 1979-6-25 1952 Yuba Peterson Ridge Road, there is a spring near by and the gutter was running water, about 2 miles east of Challenge. 640 Comment
  UCD125508  Scutellaria californica Beecher Crampton 1971-6-18 8739 Yuba Sierra Foothill Range Field Station. Ca. 6 miles east of Browns Valley. Comment
  UCR194895  Scutellaria californica George K. Helmkamp, E. A. Helmkamp 2007-5-26 12145 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, just north of the Nevada Co. line; beside Oregon Creek and Oregon Creek campground 430 Comment
  HSC99328  Scutellaria californica C. B. Wolf 1927-11-5 1441 Yuba Road to Brown's Valley, 8 mi. from Marysville 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
  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
  CHSC87338  Senecio aronicoides Lowell Ahart 2004-4-27 10766 Yuba About 20 yards west of a drainage, about 40 yards south of the road, about 1/2 mile (air) southeast of Woodleaf. 931 Comment
  CAS-BOT-BC364538  Senecio vulgaris Lowell Ahart 1979-6-25 s.n. Yuba About one mile south of Challenge 700 Comment
  CHSC44847  Sericocarpus oregonensis Lowell Ahart 1976-10-1 1218 Yuba Along the edge of Marysville Road, near the east side of Bullards Bar Dam. 701 Comment
  CHSC95112  Sericocarpus oregonensis L. P. Janeway; Erin Brandy, David Toren 2006-9-25 8887 Yuba Northern High Sierra nevada. Plumas National Forest; along Scales Road on east side of canyon of Slate Creek, 0.7 km south of the bridge across the creek; 4.5 air km west-southwest of Strawberry Valley. 1017 Comment
  UCD135893  Sericocarpus oregonensis subsp. californicus G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12831 Yuba Northern Sierra Nevada Mountains: along Hwy CA-49, 0.5 mile south of Camptonville. 817 Comment
  JEPS113868  Setaria parviflora Lowell Ahart 2007-6-30 14232 Yuba Near a new ditch, near and east of a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CAS-BOT-BC243656  Setaria pumila Roxana S. Ferris 1927-11-5 6939 Yuba 7 miles west of Brown Valley Comment
  CHSC69439  Setaria pumila Lowell Ahart 1997-8-13 7862 Yuba On the south side of Scott Forbes Road, 1/4 mile east of the intersection of Scott Forbes Road and Peoria Road, just east of Gray Drive, about 2 1/4 miles (air) east of Browns Valley. 91 Comment
  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
  JEPS94367  Setaria pumila Lowell Ahart 1997-8-13 7862 Yuba about 2 1/4 air mi e of Browns Valley (on s side of Scott Forbes Road, 1/4 mi e of intersection of Scott Forbes Road and Peoria Road, just e of Gray Drive); Scott Forbes Road 91 Comment
  RSA726852  Setaria pumila L. Ahart 2007-6-30 14232 Yuba About 13 miles (air) northeast of Marysville. 29 Comment
  UCD92707  Setaria pumila Beecher Crampton 1964-10-22 7223 Yuba 3 miles east of Brown's Valley Dry Creek. Comment
  RSA726569  Sherardia arvensis L. Ahart 2007-5-12 13814 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  UCD81498  Sherardia arvensis Christopher Michael Bronny 2009-4-1 10 Yuba Oat Hills' area of Sierra Nevada foothills. 146 Comment
  CDA14565  Sidalcea asprella G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3042 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  CHSC100996  Sidalcea asprella L. P. Janeway 2006-5-24 8617 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way 1.6 road km north of La Porte Road and Brownsville. 680 Comment
  CHSC101000  Sidalcea asprella L. P. Janeway 2006-5-24 8609 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way 1.0 road km southeast of Robinson Mill Road; 1.2 air km southeast of Robinson Mills and Forbestown Road. 768 Comment
  SEINET8944096  Sidalcea diploscypha M. Dailey 1959-5-3 s.n. Yuba Along Hwy 50, 5 miles S of Grass Valley. 515 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
  JEPS111465  Sidalcea gigantea G. L. Clifton 1996-8-17 35038 Yuba At Travis Saddle along La Porte Road Comment
Read comments Jun 20 2014
  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
  UCD116750  Sidalcea hartwegii Barbara Yungert 1974-4-25 87 Yuba east of four wheel drive road, lower SC-14 project area, Sierra Foothill Field Station. Comment
  UCD116752  Sidalcea hartwegii Barbara Yungert 1974-5-4 113 Yuba along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UCD116753  Sidalcea hartwegii Barbara Yungert 1974-5-15 156 Yuba along Forbes Road 3, near fence of F 1-14 project area, Sierra Foothill Field Station. Comment
  CHSC97666  Sidalcea hirsuta Lowell Ahart 2007-5-14 13851 Yuba Bottom of a large vernal pool, about 30 yards east of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville. 29 Comment
  JEPS113506  Sidalcea hirsuta Lowell Ahart 2007-5-12 13799 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CAS-BOT-BC384438  Silene coronaria Lowell Ahart 1980-6-19 2393 Yuba Along La Porte Road, near Rackerby 320 Comment
  CHSC108191  Silene gallica Lowell Ahart 2011-6-7 17389 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  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
  JEPS118057  Silene gallica Lowell Ahart 2011-6-7 17389 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCD98982  Silene laciniata subsp. californica R. O. Hanes 1991-5-21 17 Yuba Road 18N77 or 121. 579 Comment
  UCD135842  Silybum marianum Kathleen Keliher 1975-5-31 126 Yuba upper H-2 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC74926  Sinapis arvensis Lowell Ahart 1974-5-18 s.n. Yuba About 5 miles west of Loma Rica. 300 Comment
  UC1126806  Sisymbrium officinale M. A. Elvin 1933-6-7 22 Yuba 3 mi se of O'Brien's Ranch 60 Comment
  CAS-BOT-BC75301  Sisymbrium officinale Gordon H. True 1963-4-17 1151 Yuba About 3.5 miles south of Smartville, on Beale Aif Force Base road. 213 Comment
  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
  CHSC115891  Sisyrinchium elmeri L. P. Janeway 2015-7-1 11793 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
  JEPS95897  Solanum americanum Lowell Ahart 1999-9-5 8200 Yuba on the disturbed area on the south side of Woodruff Lane; just west of Kimball Lane; about 5 miles (air) northeast of Marysville 24 Comment
  UC581344  Solanum carolinense H. Crane September, 1937 Yuba near Marysville Comment
  CDA5903  Solanum carolinense Margaret Bellue Aug 1939 Yuba Marysville. 0 Comment
  UCD126858  Solanum carolinense Ken Taggard 1971-10-1 s.n. Yuba Sierra Foothill Range Field Station. Comment
  CHSC32091  Solanum elaeagnifolium L. Ahart 1974-8-1 571 Yuba In barnyard, Glenn Clark farm, ca. 1 mi e of Honcut. 36 Comment
  UCD126977  Solanum parishii Kathleen Keliher 1975-4-19 65 Yuba 70 meters below Englebright Dam, 20 meters above Yuba River, Sierra Foothill Field Station. 152 Comment
  UCD126996  Solanum parishii Barbara Yungert 1974-5-1 105 Yuba south of county road, along fence line, H-9 project area, Sierra Foothill Field Station. Comment
  CHSC97668  Solanum physalifolium var. nitidibaccatum Lowell Ahart 2007-5-14 13848 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS113635  Solanum sarrachoides Lowell Ahart 2007-5-14 13848 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  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
  CAS-BOT-BC365831  Soliva sessilis Gordon H. True; John Thomas Howell 1969-4-9 4781 Yuba Timbuctoo, just west of Smartville 121 Comment
  UCD136100  Soliva sessilis Beecher Crampton 1967-5-17 7941 Yuba 5 miles east of Brown's Valley, UC Sierra Foothill Range Field Station. Comment
  CHSC107169  Sonchus asper subsp. asper L. P. Janeway 2011-7-5 10491 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants occasional, especially in disturbed edges of the meadow. 750 Comment
  JEPS118680  Sonchus asper subsp. asper L. P. Janeway 2011-7-5 10491 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. French Corral 7.5' quad. Comment
  CHSC110878  Sorghum halepense Tim Hanson 2013-8-26 10 Yuba Northern Sierra Nevada Foothills. On shoulder of La Porte Road approximately 1.8 road km southwest of Woodleaf. 975 Comment
  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
  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
  UCR231341  Spergularia macrotheca var. leucantha George K. Helmkamp, E. A. Helmkamp 2011-5-6 17191 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.9 mile west of the junction at Camp Far West Reservoir 65 Comment
  CDA6935  Spergularia rubra G. K. Helmkamp, E. A. Helmkamp 2006-10-1 11523 Yuba Northern Sierra Nevada Mountain Foothills; Along Highway CA-49 just north of the Nevada County line at the Middle Yuba River bridge. Comment
  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
  CAS-BOT-BC390586  Spergularia rubra Lowell Ahart 1980-8-12 2565 Yuba Along Slate Creek 1250 Comment
  CHSC110463  Sphenosciadium capitellatum L. P. Janeway 2013-7-24 11186 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow near headwaters of a northeastern tributary to Hampshire Creek, 1.8 km north of North Yuba River and 1.0 km east-northeast of Hampshire Creek Meadow. 1102 Comment
  CDA20742  Sporobolus indicus T. Stevens, E. Storm 2006-5-2 PDR 1408219 Yuba Terry Stevens property, 6277 Marysville Rd., Browns Valley CA.New shoots in irrigated pasture, livestock will not eat.5 acres net, of 40 acres gross. Comment
  UCD125800  Stachys albens Beecher Crampton 1970-6-15 8617 Yuba UC Sierra Foothill Range Field Station. Around 6 miles east Brown's Valley. Comment
  RSA726337  Stellaria borealis subsp. sitchana L. 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. 1021 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