Search Results — 2000 specimen records retrieved (1543 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SD236332  Abutilon theophrasti G. K. Helmkamp, E. A. Helmkamp 2008-10-6 14210 Yuba Sacramento Valley: Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  CAS-BOT-BC30407  Achillea millefolium Lowell Ahart 1979-6-25 s.n. Yuba 2 miles east of Challenge 700 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
  CAS-BOT-BC218690  Achnatherum lemmonii Lowell Ahart 1982-7-4 3658 Yuba On a roadcut bank, near the Brownsville Dump, Sierra Nevada 600 Comment
  CHSC100745  Achnatherum lemmonii L. P. Janeway 2008-5-11 9364 Yuba Northern High Sierra Nevada. In the northwestern head of Slapjack Creek; along Road 19N34, 1.3 road km southeast of Challenge-La Porte Road; about 1.2 km south-southeast of Woodleaf. 940 Comment
  CHSC37190  Achnatherum lemmonii L. Ahart 1982-7-4 3658 Yuba Near Brownsville Dump, Brownsville. 600 Comment
  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
  CHSC41175  Achnatherum stillmanii L. P. Janeway; Gary Benson 1984-8-6 Yuba Plumas National Forest. Between Strawberry Valley and Slate Creek. 1173 Comment
  JEPS100364  Achnatherum stillmanii Dean W. Taylor 2001-6-6 17770 Yuba Peterson Ridge (ca. 2 air mi SE of Strawberry Valley); along Forest Road 35 (20N35) about 0.8 miles northeast of the junction with Forest Road 04 (20N04), on the easterly facing canyon wall of Slate Creek 1158 Comment
  CHSC14006  Achyrachaena mollis J. A. Roberts 1973-4-12 13 Yuba 15 mi n of Hwy 20, 10 mi e of Marysville. 457 Comment
  UCD37846  Achyrachaena mollis Beecher Crampton 1962-4-24 6245 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CAS-BOT-BC29940  Achyrachaena mollis Gordon H. True 1964-4-17 1161 Yuba About 6.5 miles south of Smartville, on Beale A.F.B. road 144 Comment
  CHSC108184  Acmispon americanus var. americanus Lowell Ahart 2011-6-7 17393 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCD103961  Acmispon americanus var. americanus Barbara Yungert 1974-5-8 135 Yuba North of Yuba River, f-2 project area, Sierra Foothill Field Station. Comment
  CHSC108204  Acmispon brachycarpus Lowell Ahart 2011-6-7 17392 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC10636  Acmispon grandiflorus var. macranthus Lowell Ahart 1968-3-3 Yuba Near Bullard's Bar. 914 Comment
  JEPS121744  Acmispon grandiflorus var. macranthus L. P. Janeway 2014-4-24 11233 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. Comment
  UCD104353  Acmispon parviflorus Barbara Yungert 1974-4-25 76 Yuba West of four wheel drive road, Jack-Ass Joe area, F-2 project area, Sierra Foothill Field Station. Comment
  RSA687742  Adiantum aleuticum Dorothy Davis 1923-08 s.n. Yuba Downsiville 1220 Comment
  JEPS35369  Adiantum jordanii Mrs. S. M. Rust 1878-1 Yuba 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
  UCR194909  Aesculus californica George K. Helmkamp, E. A. Helmkamp 2007-5-26 12132 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville 802 Comment
  CAS-BOT-BC295537  Agnorhiza bolanderi G. L. Stebbins 1966-5-22 6413 Yuba 2 miles north of Oregon House, on road to Forbestown 396 Comment
  CHSC84968  Agoseris grandiflora Lowell Ahart 2003-10-11 10621 Yuba 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
  UCD33594  Agoseris grandiflora Beecher Crampton 1970-6-15 8618 Yuba UC Sierra Foothill Range Field Station, ca. 6 miles east of Brown's Valley. Comment
  CAS-BOT-BC15448  Agoseris grandiflora var. grandiflora Lowell Ahart 1979-6-25 s.n. Yuba 1 mile south of Challenge 700 Comment
  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
  CHSC97618  Agrostis avenacea Lowell Ahart 2007-5-14 13862 Yuba On dry bare red soil, on the bottom of a swale, about 250 yards west of the power tower, power tower is about 30 yards north of the Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  POM266621  Agrostis avenacea J. C. Roos 1939-7-3 1518 Yuba Marysville. Comment
  UCD51766  Agrostis avenacea Beecher Crampton 1965-5-11 7323 Yuba 2.5 miles southwest Brown's Valley. Comment
  CAS-BOT-BC127353  Agrostis exarata Lowell Ahart 1979-6-25 s.n. Yuba 1 mile south of Challenge. Comment
  CHSC44540  Agrostis exarata Lowell Ahart 1979-6-25 1939 Yuba About 1 mile south of Challenge. 640 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
  JEPS121794  Agrostis gigantea L. P. Janeway, James Nixon, Eduardo Gonzales 2014-7-2 11429 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow opening just northeast of Little Oregon Creek and 0.2 km east of Oregon Hill Road; 7.3 air-km southeast of Challenge. Comment
  UCD52805  Agrostis idahoensis G. Douglas Barbe; J. T. Howell, T. C. Fuller 1981-6-22 3050 Yuba La Porte - Quincy Road 3.6 miles northeast of Strawberry Valley at the Plumas County line. 1280 Comment
  UCD53049  Agrostis microphylla Robert E. Preston 1995-5-10 867 Yuba N edge of Beale Air Force Base, 0.4 mi. e. of jct Smartsville Road and Doolittle Drive. 41 Comment
  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
  CHSC97441  Aira caryophyllea Lowell Ahart 2007-5-12 13820 Yuba Dry red bare soil, along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  SEINET3817926 Image available Aira caryophyllea George K. Helmkamp, E. A. Helmkamp 2011-4-10 17166 Yuba Sacramento Valley, Along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland (Wheatland 7.5' Q. 44 Comment
  SEINET7067139  Aira caryophyllea A. G. Vestal 1947-4-30 s.n. Yuba About 5.1 miles west of Smartville on Route 20. Coordinate datum: NAD27. Comment
  UCD55725  Aira caryophyllea Beecher Crampton 1965-5-11 7317 A Yuba 2.5 miles southwest of Brown's Valley. Comment
  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
  SEINET5335999  Aira caryophyllea C. Aarstad 1979-4-28 s.n. Yuba at junct. of Rt. 20 and N Fork of Browns Valley 183 Comment
  CAS-BOT-BC138415  Aira caryophyllea var. capillaris Beecher Crampton 1957-6-5 4153 Yuba Foothill flat. 1.3 mile east of Oregon House Store. Comment
  RSA116440  Aira elegans Beecher Crampton 1957-6-5 4153 Yuba 1.3 miles east of Oregon House Store Comment
  UCD32892  Aira elegantissima Beecher Crampton 1965-5-11 7317 Yuba Yuba County, 2.5 miles S.W. Brown Valley. Comment
  CHSC76294  Alisma lanceolatum Lowell Ahart 1999-9-17 8236 Yuba Rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  SEINET3449084  Alisma lanceolatum Unknown 2003-7-17 10415 Yuba Smartville, Smartville, about 6 air miles south, west side of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road 120 Comment
  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
  CAS-BOT-BC445377  Alisma plantago-aquatica W. V. Middlekauff 1955-7-4 s.n. Yuba 3 miles n.w. of Rio Oso Post Office Comment
  CHSC84213  Alisma triviale Lowell Ahart 2003-7-17 10416 Yuba On the bottom of a stream, on the west side of Smartville road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 129 Comment
  UCR178423  Allium L. K. Mann 1957-4-19 s.n. Yuba Northern Sierra Nevada Mtns, at east edge of top of dam [New Bullards Bar Dam] across North Fork Yuba River, between Dobbins and North San Juan 610 Comment
  UCD22594  Allium L. K. Mann 1957-4-19 s.n. Yuba At east edge of top of dam across north fork of Yuba River, between Dobbins and North San Juan. Comment
  CHSC22947  Allium amplectens Robert A. Schlising; G. Keator 1963-4-8 2498 Yuba Along Hwy 20, area of Browns Valley, 29.4 miles west of Nevada City. Comment
  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
  CAS-BOT-BC462250  Allium amplectens Lewis S. Rose 1940-5-28 40403 Yuba Oregon House 457 Comment
  SEINET8466776 Image available Allium amplectens D. W. McNeal 1975-5-9 1599 Yuba above a rd. cut on Hwy. #20 just above Smartville, ca. 1.5 mi. w. of the Yuba-Nevada Co. line. Comment
  UC1299738  Allium membranaceum Freed W. Hoffman 1949-5-14 2809 Yuba at e abutment of dam, Bullards Bar Dam and Reservoir Bullards Bar Dam and Reservoir Comment
  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
  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
  UCD138600  Allium peninsulare Barbara Yungert 1974-4-18 65 Yuba north of Yuba River, Sierra Foothill Field Station. 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
  CAS-BOT-BC132066  Allium peninsulare var. peninsulare Gordon H. True 1963-5-9 1227 Yuba Just east of Parks Bar bridge, South Yuba River about 1 mile west of Timbuctoo 79 Comment
  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
  CHSC108164  Allium sanbornii var. sanbornii L. P. Janeway 2011-8-15 10650 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 1.8 air km south-southwest of Oregon Peak, 0.5 km north of Marysville Road. Southwest edge of meadow area, where seasonal drainage occurs and in sheetlfow parts of the meadow. 762 Comment
  UCD143722  Allium serra L. K. Mann 1958-4-20 s.n. Yuba bulbs 3 miles north of Rumsey, Califronia on road 16 toward Clear Lake. Mostly on right side going north. Comment
  CHSC113650  Allotropa virgata L. P. Janeway 2014-5-20 11255 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. 902 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
  CHSC43301  Alnus rhombifolia Lowell Ahart 1976-1-19 997 Yuba Along the edge of South Honcut Creek, near bridge, near Ramirez Road. 33 Comment
  JEPS118331  Alnus rhombifolia Lowell Ahart 2011-6-7 17385 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CHSC44541  Alopecurus carolinianus Lowell Ahart 1978-4-14 1639 Yuba West of Kimball Lane and on the property of Shintaffer Farms Inc., about 2 miles north-east of Marysville. 30 Comment
  UCD55947  Alopecurus saccatus Beecher Crampton 1965-5-11 7324 Yuba 2.5 miles southwest of Brown's Valley. Comment
  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
  CHSC97706  Amaranthus californicus Lowell Ahart 2007-11-8 14589 Yuba North of the waterway between the headland and the large island, on the strand of Camp Far West Reservoir, about 1/4 mile south of Rock Creek, about 1/2 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  UCD97084  Amaranthus cruentus Ed Leseman 1921-9-1 s.n. Yuba Wheatland. Comment
  CHSC97137  Amaranthus hybridus Lowell Ahart 2007-6-30 14239 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  RSA726802  Amaranthus hybridus L. Ahart 2007-6-30 14239 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  UCR201766  Amaranthus powellii George K. Helmkamp, E. A. Helmkamp 2008-10-6 14209 Yuba Sacramento Valley, Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  CDA10055  Ambrosia psilostachya L. Ahart 2002-10-1 9976 Yuba On the west side of the dirt road, east of the upper part of Englebright Reservoir on the Yuba River, along Rice s Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20. Comment
  UC1042419  Ambrosia psilostachya J. Thomas Howell 1951-8-21 28288 Yuba near Camptonville; Sierra Nevada 762 Comment
  CAS-BOT-BC55576  Ambrosia psilostachya John Thomas Howell 1951-8-21 28288 Yuba Near Comptonville 762 Comment
  RSA88085  Ambrosia psilostachya J. T. Howell 1951-8-21 28288 Yuba Near Camptonville 762 Comment
  UC1127768  Amelanchier utahensis G. Burks 1933-9-26 40 Yuba 1 mi s Camptonville; Tahoe National Forest, Smartsville Quad. 822 Comment
  CHSC116310  Ammannia coccinea Lowell Ahart 2015-11-19 20684 Yuba 100 yards or more north of the spillway area, below the high water line, west side of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  CHSC76282  Ammannia coccinea Lowell Ahart 1999-9-17 8244 Yuba On the margins of a rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice rice dryer, about 5miles (air) northeast of Marysville. 24 Comment
  CHSC83058  Ammannia coccinea Lowell Ahart 2002-10-8 9944 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
  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
  CHSC68470  Amsinckia intermedia Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7725 Yuba On the bank of the Browns Valley Water Ditch, north of the poor dirt road, south of Dry Creek, about 1 1/4 miles east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 198 Comment
  JEPS94317  Amsinckia intermedia Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7725 Yuba about 17 mi ne of Marysville (on bank of Browns Valley Water Ditch, n of the poor dirt road, s of Dry Creek, about 1 1/4 mi e of Scott Forbes Road (Long Bar Road)); Browns Valley Water Ditch 198 Comment
  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
  SEINET11792840  Amsinckia intermedia C. Aarstad 1979-4-28 s.n. Yuba At junction of Rt. 20 and N for of Yuba in Browns Valley 183 Comment
  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
  UCD56085  Andropogon virginicus Beecher Crampton 1957-6-5 4113 Yuba Along State Hwy. 20, 7.5 miles east of Marysville. Comment
  UCD56096  Andropogon virginicus Gordon H. True 1951-1-6 s.n. Yuba near Parks Bar. Comment
  UCD80513  Andropogon virginicus CNPS SN Foothill Team 2005-7-5 SNNR 0467 a Yuba CDFG Daugherty Hill Wildlife Area. 278 Comment
  CAS-BOT-BC137783  Andropogon virginicus var. virginicus Roxana S. Ferris 1927-11-5 6941 Yuba 7 miles from Brown Valley on Marysville Road. Comment
  CHSC116300  Andropogon virginicus var. virginicus Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20643 Yuba On the sides of the spillway area, at the west side and near the top of Lake Francis Dam, about 1 1/2 miles south of Dobbins. 512 Comment
  CHSC10805  Anemone oregana Lowell Ahart 1970-5-7 Yuba Along Deadwood Creek, near Challenge. 914 Comment
  CHSC69127  Angelica breweri Lowell Ahart 1997-8-7 7836 Yuba On east side of the dirt road, about 2 miles (air) southeast of Woodleaf, about 3 miles (air) northeast of Challenge. 853 Comment
  CHSC84145  Anisocarpus madioides Lowell Ahart 2003-7-2 10343 Yuba About 200 yards south of the 4-H Camp, on the west side of Oregon Hill Road, about 1/2 mile north of Marysville Road, about 2 miles (air) northeast of Dobbins. 815 Comment
  CHSC97777  Anisocarpus madioides Lowell Ahart 2007-11-1 14535 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  JEPS104293  Anisocarpus madioides Lowell Ahart 2003-7-2 10343 Yuba About 200 yd south of the 4-H Camp, on the w side of Oregon Hill Rd, ca 1/2 mi n of Marysville Rd, ca 2 mi (air) ne of Dobbins. 815 Comment
  CHSC78356  Anthoxanthum odoratum Lowell Ahart 2000-6-19 8491 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. 731 Comment
  UCD33107  Anthoxanthum odoratum Beecher Crampton 1966-6-14 7746 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  JEPS113288  Anthriscus caucalis Lowell Ahart 2007-4-17 13679 Yuba East of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  CHSC90335  Aphanes occidentalis Lowell Ahart 2005-3-11 11598 Yuba On the west side of the poor dirt road, about 1/2 mile west of Marysville Road, about 1/4 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/4 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 344 Comment
  JEPS107450  Aphanes occidentalis Lowell Ahart 2005-3-11 11598 Yuba On W side of the poor dirt road, ca. 1/2 mi W of Marysville Rd, ca. 1/4 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/4 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 344 Comment
  CHSC106050  Apocynum androsaemifolium Lowell Ahart 2010-7-27 16922 Yuba Disturbed area of a log landing, about 100 yards north of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. 1219 Comment
  JEPS117429  Apocynum androsaemifolium Lowell Ahart 2010-7-27 16922 Yuba Disturbed area of a log landing, about 100 yards north of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam 1219 Comment
  RSA795330  Apocynum androsaemifolium L. Ahart 2010-7-27 16922 Yuba Disturbed area of a log landing, about 100 yards north of Scales Road, about 1/8 miles east of La Porte Quincy Road, about 3 air miles east of Sly Creek Reservoir Dam. 1220 Comment
  CDA39730  Apocynum cannabinum H. A. Crane 1929-7-12 s.n. Yuba 0 Comment
  CHSC46476  Aralia californica Lowell Ahart 1980-7-25 2483 Yuba Edges of a small stream that flows into Slate Creek, near the debris dam, 1/4 mile north-east of the two steel bridges across Slate Creek, about 6 miles north-east of North Star along La Porte Road. 1097 Comment
  CAS-BOT-BC128687  Arbutus menziesii Alice Eastwood 1918-4-7 6799 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
  UCD117489  Arbutus menziesii Kathleen Kehiler 1975-4-30 76 Yuba Along Oregon Hill Road between Bullards Bar Reservoir and Challenge. Comment
  UCR189625  Arbutus menziesii George K. Helmkamp, E. A. Helmkamp 2007-8-29 12838 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 Comment
  CAS-BOT-BC38553  Arctostaphylos mewukka subsp. truei Volney Rattan 1880-1-1 s.n. Yuba Yuba Co. Comment
  CAS-BOT-BC46712  Arctostaphylos patula Alice Eastwood 1918-4-7 6797 Yuba Camptonville. Comment
  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
  UC876567  Arctostaphylos viscida subsp. viscida Alice Eastwood 1918-4-7 6798 Yuba Camptonville Comment
  JEPS113808  Aristida oligantha Lowell Ahart 2007-6-22 14217 Yuba Bottom of a new ditch, near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UCD168078  Aristida oligantha James Neilson 1961-10-16 463 Yuba 1/2 mile west of Brown's Valley Rd. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UCD56508  Aristida oligantha Beecher Crampton 1974-10-11 9095 Yuba 3 miles southwest of Brown's Valley, along Hwy. 20. Comment
  CDA22414  Aristolochia californica E. Vickery, P. E. Levingston 1965-3-12 Yuba Wheatland. 0 Comment
  LA76973  Aristolochia californica C. B. Adams; 1930-10-13 1741 Yuba Small creek flowing into Yuba River on Browns Valley to Smartsville Road 152 Comment
  UC484024  Aristolochia californica Carl B. Wolf 1930-10-13 Yuba on Brown's Valley to Smartsville Rd. (on small creek flowing into Yuba R.) 152 Comment
  UCD81502  Aristolochia californica Christopher Michael Bronny 2009-4-1 14 Yuba Oat Hills' area of Sierra Nevada foothills. 213 Comment
  CAS-BOT-BC400415  Aristolochia californica Carl B. Wolf 1930-10-13 1741 Yuba Creek flowing into Yuba River, on Brown's Valley to Smartsville Road 152 Comment
  JEPS104248  Arrhenatherum elatius Lowell Ahart 2003-7-6 10367 Yuba Near a meadow, e of the power line, ca 50 yd nw of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  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
  JEPS87728  Arrhenatherum elatius Lowell Ahart 1994-6-27 7392 Yuba about 4 mi ne of Strawberry Valley (nw side of Schwartz Meadow, e side of La Porte Road); Schwartz Meadow, La Porte Road 1219 Comment
  CDA22420  Asarum hartwegii Yuba County School Children 1930-4-12 s.n. Yuba [No further data.] 0 Comment
  SEINET10580364  Asclepias cordifolia Carl B. Wolf 1937-5-13 Wolf s.n. 1937 Yuba Sierra Nevada foothills, 2.7 mi below Stanfield Hill on road to Brown's Valley 183 Comment
  SEINET12347215  Asclepias cordifolia F. H. Utech 1990-6-5 90 -860 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  UCD121288  Asclepias cordifolia Barbara Yungert 1974-5-6 124 Yuba South side of road, SC-13 project area, Sierra Foothill Field Station. Comment
  UCR194899  Asclepias fascicularis George K. Helmkamp, E. A. Helmkamp 2007-5-26 12139 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, just north of the Nevada Co. line; beside Oregon Creek and Oregon Creek campground 430 Comment
  CHSC43319  Asclepias speciosa Lowell Ahart 1979-6-25 1934 Yuba Near the edge of LaPorte Road, about 2 miles south-west of Brownsville. 365 Comment
  CHSC118496  Aspidotis densa L. P. Janeway 2016-5-11 11960 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
  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
  RSA726338  Athyrium filix-femina subsp. cyclosorum L. Ahart 2007-8-7 14410 Yuba Hampshire Creek Meadow, about 80 yards east of the dirt road, about 1 mile east of Clipper Mills. 1021 Comment
  CAS-BOT-BC66030  Athyrium filix-femina var. cyclosorum W. Fred Ayres Summer 1925 s.n. Yuba unspecified Comment
  UCD114254  Athysanus pusillus Barbara Yungert 1974-4-16 44 Yuba Campbell Valley, Sierra Foothill Field Station. Comment
  CHSC107580  Avena barbata Lowell Ahart 2011-6-7 17421 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCD56458  Avena fatua Beecher Crampton 1962-4-24 6252 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCR258212  Avena fatua George K. Helmkamp, Amy Barnes 2013-3-28 20262 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  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
  CDA18795  Azolla filiculoides Deforest, Storm 2000-3-27 PDR 1199217 Yuba Loma Rica Rd., Marysville. 0 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
  CHSC43813  Barbarea orthoceras Lowell Ahart 1979-6-4 1924 Yuba Near a stream, along the county road, west of the bridges across Slate Creek. 640 Comment
  UCD18434  Barbarea verna Joe DiTomaso 2001-4-12 s.n. Yuba on Peoria Rd. near junction with Sicard Flat Rd., on road to UC Sierra Foothill Research and Extension Center, shaded area along roadside of oak woodland. Comment
  CAS-BOT-BC16788  Barbarea verna Lowell Ahart 1977-4-18 s.n. Yuba Along Dry Creek, about 10 miles northeast of Marysville. 100 Comment
  CHSC97459  Bidens frondosa Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-9-18 14497 Yuba On the east side of a small pond, on the west side of the dirt road, Hampshire Creek Meadow, about 2 yards west of the dirt road, about 1 mile (air) east of Clipper Mills. 1015 Comment
  JEPS124267  Bidens frondosa Lowell Ahart 2015-11-19 20671 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  RSA726441  Bidens frondosa L. Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14497 Yuba About 1 mile (air) east of Clipper Mills. 1016 Comment
  JEPS103252  Botrychium multifidum Lowell Ahart 2002-10-9 9964 Yuba E of a small stream, at the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1075 Comment
  CHSC96911  Boykinia occidentalis Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-13 14297 Yuba On the south side of Hampshire Creek, below the cement dam on Hampshire Creek, east of a large wet meadow, about 100 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  RSA726784  Boykinia occidentalis L. Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 s.n. Yuba About 100 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  CAS-BOT-BC418425  Boykinia occidentalis Rimo Bacigalupi 1927-7-2 1590 Yuba Downscille Road almost 8 miles northeast of Comptonville Comment
  CAS-BOT-BC145443  Brachypodium distachyon Lowell Ahart 1981-6-13 2848 Yuba Sierra Nevada. On west side of McGinn Hill, east of Loma Rica. 300 Comment
  CHSC107562  Brachypodium distachyon Lowell Ahart 2011-6-7 17422 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  RSA116442  Brachypodium distachyon Beecher Crampton 1957-6-5 4121 Yuba along Hwy. 20, 10 miles east of Marysville. Comment
  UC1153944  Brachypodium distachyon Beecher Crampton 1957-6-5 4164 Yuba site of Timbuctoo, near old Wells Fargo Store Timbuctoo Comment
  UCD56999  Brachypodium distachyon Beecher Crampton 1971-6-18 8741 Yuba Sierra Foothill Range Field Station. Ca. 6.5 miles E of Browns Valley. Comment
  UCR168805  Brachypodium distachyon David Charlton 2005-5-16 8033 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  CAS-BOT-BC186700  Brassicaceae Lowell Ahart 1974-5-18 s.n. Yuba About 5 miles west of Loma Rica 300 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
  JEPS113691  Briza maxima Lowell Ahart 2007-5-14 13863 Yuba Bottom of a swale, about 250 yards west of the power tower, power tower is about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  SEINET3828409  Briza maxima George K. Helmcamp, E. A. Helmkamp 2011-1 17213 Yuba Eastern edge of Sacramento Valley: Camp Far West Road 1.3 miles southeast of it's junction with Spencerville road. 5.25 mi. NE (52 degrees) of Wheatland (camp far west 7.5') 62 Comment
  SEINET3837936 Image available Briza maxima George K. Helmkamp, E. A. Helmkamp 2011-5-6 17210 Yuba East edge of Sacramento Valley: junction of Camp Far West Road and Spenceville Road, 5.4 mi NE of Wheatland (Camp Far West) 56 Comment
  UCD57363  Briza maxima Beecher Crampton 1969-5-12 8445 Yuba 2 miles west of Smartsville. State Hwy. 20. Comment
  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
  JEPS113727  Briza minor Lowell Ahart 2007-5-12 13822 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  SEINET4344868  Briza minor A. Tiehm 1975-1 644 Yuba U.C. Sierra Foothill Field station 274 Comment
  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
  UCR231313  Briza minor George K. Helmkamp, E. A. Helmkamp 2011-5-6 17187 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.3 mile north of the junction with Hokan Lane, vicinity of Camp Far West Reservoir 105 Comment
  UCR258214  Briza minor George K. Helmkamp, Amy Barnes 2013-3-28 20264 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  SEINET4344873  Briza minor C. Aarstad 1979-4-28 s.n. Yuba at junct. of Rt. 20 and N. fork of Yuba River in Browns Valley. 183 Comment
  SEINET7042651  Briza minor A. G. Vestal 1963-5-30 s.n. Yuba Weedy depression near Dry Creek and north oh Sicard Flat. Smartville quadrangle UTM Zone 10, 642203mE, 4345148mN. Comment
  UCD139147  Brodiaea R. E. Preston 1996-5-22 935 Yuba Beale Air Force Base. 33 Comment
  UCR232226  Brodiaea californica var. californica George K. Helmkamp, E. A. Helmkamp 2011-5-6 17211 Yuba Eastern edge of Sacramento Valley, Camp Far West Road, 1.3 miles southeast of its junction with Spenceville Road, 5.25 mi. NE (52 deg. ) of Wheatland 62 Comment
  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
  UCD77172  Brodiaea coronaria Robert E. Preston 2004-6-12 2256 Yuba 1.6 mi SW of Camptonville, along Marysville Rd, 0.2 mi W of its jct with Hwy 49. 762 Comment
  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
  CAS-BOT-BC484284  Brodiaea elegans subsp. elegans Alice Eastwood 1921-5-22 10583 Yuba Los Verjeles Comment
  CHSC113648  Brodiaea minor L. P. Janeway 2014-6-24 11414 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 480 m northeast of Marysville Road. 756 Comment
  CHSC22961  Brodiaea minor Robert A. Schlising 1963-5-3 2546 Yuba 29.4 miles west of Nevada City along Hwy 20. Comment
  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
  UCD77170  Brodiaea minor Robert E. Preston 2004-6-12 2258 Yuba 0.9 mi E of Dobbins, along Marysville Rd 644 Comment
  UCD77179  Brodiaea minor Robert E. Preston 2002-6-28 1895 Yuba Brownsville, at jct Willow Glen Rd and Frenchtown Rd, behind Post Office. 625 Comment
  CAS-BOT-BC484514  Brodiaea minor Gordon H. True 1963-4-17 1170 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Hwy. 30 Comment
  RSA151938  Brodiaea minor Rimo C. Bacigalupi, L. R. Heckard, Ruth D. Sanderson, G. Bacigalupi 1952-6-20 3759 Yuba Along road from Brownsville to Oregon House, just N of Washington Mill and 1.5 miles due S of Brownsville. 610 Comment
  SEINET12058489  Brodiaea minor F. H. Utech 1990-6-5 90 -857 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  CAS-BOT-BC484573  Brodiaea purdyi Lewis S. Rose 1940-5-28 40402 Yuba Oregon House 457 Comment
  CHSC115905  Brodiaea sierrae L. P. Janeway 2015-6-29 11785 Yuba Northern High Sierra Nevada. Plumas National Forest; Weiss Hill Meadow, a large meadow 600 air-km east-southeast of junction of Weiss Hill Road and Forbestown Road; at the head of a minor northwestern tributary to New York Creek. 853 Comment
  UCD78204  Brodiaea sierrae Robert E. Preston 2004-6-19 2262 Yuba 1.7 mi NE of Challenge, along La Porte Rd. 944 Comment
  SEINET7067128  Brodiaea stellaris A. G. Vestal 1947-4-29 s.n. Yuba About 5 miles west of Smartville on the Smartville Road. Coordinate datum: NAD27. UTM Zone 10, 640771mE, 4339031mN. Comment
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Jul 17 2018
  RSA319549  Bromus Patricia Wilder 1971-6-23 5204 Yuba Feather River. Two miles southeast of Forbestown on Challenge cut-off near junction with Forbestown Road. 762 Comment
  SEINET4345216  Bromus carinatus A. Tiehm 1975-1 654 Yuba U.C. Sierra Foothill Field Station 396 Comment
  UCD32529  Bromus carinatus Beecher Crampton 1954-5-10 1845 Yuba Yuba County, 6 miles south of Camptonville, along highway 49, north slope near the middle of the Yuba River. Comment
  UCD57974  Bromus carinatus Beecher Crampton 1957-6-5 4152 Yuba Opposite Oregon House Store. Comment
  UCR118899  Bromus carinatus Beecher Crampton 1954-5-10 1845 Yuba Central Sierra Nevada foothills, 6 miles south of Camptonville, along Hwy. 49 457 Comment
  SEINET943621  Bromus carinatus var. carinatus Carl B. Wolf 1937-1 8635 Yuba Sierra Nevada Foothills, 2 7/10 miles below Stanfield Hill on road to Browns Valley 182 Comment
  CHSC44547  Bromus carinatus var. marginatus Lowell Ahart 1979-6-25 1935 Yuba On the hill north of Brownsville, Brownsville. 640 Comment
  CAS-BOT-BC148845  Bromus carinatus var. marginatus Lowell Ahart 1979-6-25 s.n. Yuba At Brownsville. 700 Comment
  CHSC63306  Bromus commutatus Lowell Ahart 1994-6-5 7303 Yuba On the south side of Costa Creek, on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  UCD58472  Bromus commutatus Beecher Crampton 1965-6-17 7376 Yuba Ca. 3/4 mile north of Stanfield Hill. Willow Glen Creek. 396 Comment
  UCD58591  Bromus diandrus Beecher Crampton 1962-4-24 6272 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCD59483  Bromus diandrus Beecher Crampton 1962-4-24 6246 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  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
  UCR258221  Bromus diandrus George K. Helmkamp, Amy Barnes 2013-3-28 20259 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  CAS-BOT-BC155483  Bromus hordeaceus Gordon H. True 1968-5-6 4230 Yuba Near Gales Orchard ca. 6 miles east of Camptonville. 1249 Comment
  CHSC107156  Bromus hordeaceus L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10374 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants scattered throughout the meadow. 750 Comment
  HSC9201  Bromus hordeaceus T. F. Newman 1964-4-12 50 Yuba 8.5 mi. N of Marysville on Alt. 40., Boyer Rd. Comment
  SEINET3439301 Image available Bromus hordeaceus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17204 Yuba East edge of Sacramento Valley: junction of Camp Far West Road and Spenceville Road, 5.4 mi NE of Wheatland Comment
  UCD58681  Bromus hordeaceus Beecher Crampton 1962-4-24 6243 Yuba 5 miles E of Browns Valley. Sierra Foothill Range 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
  CHSC63307  Bromus laevipes Lowell Ahart 1994-6-5 7299 Yuba On the east side of Costa Creek, on the south side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  CAS-BOT-BC162367  Bromus madritensis Peter H. Raven 1953-5-9 s.n. Yuba 3.7 miles from Browns Valley on Challenge Road. Comment
  UCD58967  Bromus madritensis Beecher Crampton 1965-6-17 7372 Yuba Ca. 3/4 mile north of Stanfield Hill. Willow Glen Creek. 396 Comment
  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
  CHSC113665  Bromus madritensis subsp. madritensis L. P. Janeway 2014-5-12 11245 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  JEPS100266  Bromus orcuttianus Dean W. Taylor 2001-5-9 17639 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  JEPS104069  Bromus orcuttianus Lowell Ahart 2003-7-2 10340 Yuba About 200 yd south of the 4-H Camp, on the w side of Oregon Hill Rd, ca 1/2 mi n of Marysville Rd, ca 2 mi (air) ne of Dobbins. 815 Comment
  UCD148339  Bromus orcuttianus G. Douglas Barbe; J. T. Howell, T. C. Fuller 1981-6-22 3037 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  CHSC107151  Bromus racemosus L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10375 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants scattered in an area of slight water sheet flow. 750 Comment
  UCD59706  Bromus sterilis Beecher Crampton 1954-5-10 1846 Yuba Hwy. 49, north slope of the middle Yuba River, 6 miles south of Camptonville. Comment
  JEPS100272  Bromus tectorum Dean W. Taylor 2001-5-9 17645 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  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
  CHSC107560  Calandrinia ciliata Lowell Ahart 2011-6-7 17409 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  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
  JEPS107414  Calandrinia ciliata Lowell Ahart 2005-3-11 11620 Yuba In center of the poor dirt road, 100 yd W of large rock outcrop, ca. 1/2 mi W of Marysville Rd, ca. 1/2 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/2 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 386 Comment
  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
  CHSC97446  Callitriche heterophylla var. bolanderi Lowell Ahart 2007-5-14 13884 Yuba Wet bare soil, on the bottom of a swale, moisture is from a leaking canal, about 250 yards west of the power tower. Power tower is about 30 yards north of of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS113287  Callitriche heterophylla var. bolanderi Lowell Ahart 2007-4-17 13684 Yuba In shallow water of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  JEPS124312  Callitriche heterophylla var. heterophylla Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20649 Yuba Below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CHSC97501  Callitriche marginata Lowell Ahart 2007-5-12 13784 Yuba Bottom of a scraped area, east side of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  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-BC483431  Calochortus luteus Mrs. J. E. Cramsie 1923-5-22 s.n. Yuba Smartville Comment
  CAS-BOT-BC483432  Calochortus luteus Lillian S. Mott 1965-4-21 LM 6549 Yuba Highway 20 to Marysville 518 Comment
  CHSC10605  Calochortus monophyllus Lowell Ahart 1968-5-15 Yuba Near Bullards Bar Dam. 914 Comment
  CHSC32088  Calochortus monophyllus L. Ahart 1973-5-6 212 Yuba Near Challenge. 762 Comment
  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
  UC672148  Calochortus monophyllus Herbert L. Mason 1927-5-11 3725 Yuba near Dobbins 457 Comment
  CAS-BOT-BC493080  Calochortus monophyllus Elmer I. Applegate 1934-5-2 8891 Yuba Near Indian Valley, northern Yuba County Comment
  CAS-BOT-BC493121  Calochortus monophyllus L. S. Smith 1931-5-1 s.n. Yuba Burn west of Camptonville near road, Tahoe Forrest 548 Comment
  RSA232243  Calochortus monophyllus James Henrickson 1969-5-25 3448 Yuba Ca. 60 miles northeast of Yuba City, 1 mile west of Sierra County line along Highway 49 Comment
  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
  SEINET5725034 Image available Calochortus superbus Roy H. Saigo 1961-1 43 Yuba 16.3 miles west of Marysville, on route 20; 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
  SEINET11268342  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.; 0 975 Comment
  UCD80038  Calycadenia multiglandulosa CNPS SN Foothill Team 2005-6-1 SNFN 0173 a Yuba CDFG Daugherty Hill Wildlife Area, in the 'C' shaped parcel located to the east of the Daugherty Hill unit. 623 Comment
  CAS-BOT-BC270730  Calycadenia multiglandulosa Lowell Ahart 1977-7-31 s.n. Yuba Near Brownsville 600 Comment
  CAS-BOT-BC270732  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
  UCD129737  Calycadenia multiglandulosa Gerald D. Carr 1971-8-15 632 Yuba 0.6 mile north of Oregon House Post Office on road to Brownsville. Comment
  POM186826  Calycadenia multiglandulosa subsp. bicolor D. D. Keck 1932-7-1 1610 Yuba 2 miles E of Dobbins 762 Comment
  SEINET11836280  Calycadenia oppositifolia L. S. Rose 1940-1 40399 Yuba Oregon House 457 Comment
  UC894252  Calycadenia pauciflora Lewis S. Rose 1940-5-28 40399 Yuba Oregon House 457 Comment
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Feb 27 2007
  UC1119095  Calycadenia spicata M. A. Elvin 1933-6-6 27 Yuba 4 mi sw of Courtney Cross; Smartsville 60 Comment
  UC1143024  Calycadenia spicata M. A. Elvin 1933-7-1 38 Yuba 2 mi w of Lafferty Peak; Smartsville 152 Comment
  CDA10582  Calycadenia truncata L. Ahart 2002-10-1 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. Comment
  JEPS103338  Calycadenia truncata Lowell Ahart 2002-10-10 9977 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-BC90912  Calycanthus occidentalis Lowell Ahart 1980-6-19 2413 Yuba Sierra Nevada. 4.5 miles east of Challenge. 900 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
  SEINET5717678 Image available Calycanthus occidentalis Wayne Blizzard 1974-1 36 Yuba Ca. 300 yards south of Station Headquarters, University of California Sierra Foothill Range Field Station.; UC Foothill Field Station Comment
  CHSC84995  Calyptridium monospermum Lowell Ahart 2003-10-29 10685 Yuba On the south side of Lost Creek, below the high water line of Sly Creek Reservoir, about 400 yards southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  UC852134  Calyptridium monospermum Lewis S. Rose 1939-6-6 39230 Yuba 2 mi ne of Clipper Mills 1173 Comment
  CHSC63135  Calystegia occidentalis subsp. occidentalis Lowell Ahart 1994-6-27 7400 Yuba On dry red rocky soil, along the north side of a small stream, on the east bank of the logging road, east of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  CHSC110459  Camassia quamash subsp. breviflora L. P. Janeway 2013-7-2 11180 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, on of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. 815 Comment
  CHSC49647  Camassia quamash subsp. breviflora Vernon Oswald 1984-6-25 1310 Yuba E21 between Challenge and LaPorte, ca. 250 ft S of the Plumas Co. line. 1280 Comment
  JEPS124108  Camassia quamash subsp. breviflora Lowell Ahart, Susan Kephart, Jim Kephart 2015-6-4 20195 Yuba About 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. Comment
  CHSC32105  Camissonia campestris subsp. campestris L. Ahart 1976-4-10 1053 Yuba Along edge of rd, end of rd by Peach Tree Country Club, ca. 1 mi e of Maysville, from the club go east ca. 3 mi until main drive ends, then take the private drive to your right and this is where the plants are found. 27 Comment
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Jul 7 2020
  SEINET7072718  Camissonia gouldii A. G. Vestal 1963-5-7 s.n. Yuba About 3.5 miles north of Wheatland on Jasper Lane. UTM Zone 10, 636590E, 4323573mN. Coordinate datum: NAD 27. Comment
  CDA14564  Campanula prenanthoides G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3043 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  CHSC3324  Capsella bursa-pastoris M. Gregg 1966-3-13 38 Yuba Northeast of Marysville on the Slaughter House Rd. 1/4 mile from the levee. Both sides of the road. Comment
  CHSC97452  Capsella bursa-pastoris Lowell Ahart 2007-5-14 13847 Yuba On dry red bare soil, east of the dirt road, about 20 yards northeast of the gate, about 20 yards south of the second power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  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
  JEPS118319  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
  CDA6863  Carduus pycnocephalus William J. Ferlatte, A. Hill 1971-8-31 1369 Yuba Camp Far West, 1.4 miles past road to boat ramp on North Recreation Area road. 0 Comment
  UC1982296  Carex amplifolia Virginia Moran 2008-9-17 Yuba Collected from Celestial Pond located approximately tem miles (16Km) north of Nevada City in Yuba County. Water from the pond drains in Oregon Creek which drains into the Middle Yuba River. Comment
  CHSC106049  Carex angustata Lowell Ahart 2010-7-27 16917 Yuba Along small streams in the meadow, on the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. 1219 Comment
  UCR118909  Carex aquatilis Beecher Crampton 1962-4-24 6289 Yuba Central Sierra Nevada foothills, University of California Foothill Field Station, 5 miles east of Brown's Valley, 2.5 miles NNW of Smartville 366 Comment
  UCD140108  Carex aquatilis Beecher Crampton 1962-4-24 6289 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CHSC105844  Carex aurea Lowell Ahart 2010-7-27 16915 Yuba Meadow on the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. 1219 Comment
  JEPS95412  Carex aurea Lowell Ahart 1994-6-27 7381 Yuba 4 mi NE of Strawberry Valley (N of the dirt county road from La Porte Road to the Poverty Hill Mine, E of Schwartz Meadow) 1219 Comment
  CHSC112130  Carex barbarae L. P. Janeway; James Nixon, Eduardo Gonzales 2014-7-2 11431 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow opening just northeast of Little Oregon Creek and 0.2 km east of Oregon Hill Road; 7.3 air-km southeast of Challenge. 625 Comment
  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
  JEPS121421  Carex cyrtostachya P. F. Zika, B. Wilson, L. Ahart, L. Janeway 2011-8-5 25718 Yuba Hampshire Meadow, 1 air mile E of Clipper Mills, northern Sierra Nevada Highlands (n SNH) Comment
  UCD80255  Carex densa CNPS SN Foothill Team 2005-3-17 SNFN 0041 Yuba CDFG Spenceville Wildlife Area. The seep is upslope to the SW of Jones Road, less than 100 m from gate at intersection with Spenceville Road. 100 Comment
  CHSC63192  Carex echinata subsp. echinata Lowell Ahart 1994-6-27 7385 Yuba Meadow, north of the dirt road that goes from La Porte Road to the Poverty Hill Mine (County Road), east of Schwartz Meadow, about 4 miles north-east of Strawberry Valley. 1219 Comment
  JEPS100493  Carex echinata subsp. echinata Lowell Ahart 2000-6-23 8508 Yuba Bog in a small meadow, about 200 yards east of the meadow along La Porte Road, about 50 yards north of Scales Road, about 3 miles northeast of Strawberry Valley 1219 Comment
  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
  CHSC76810  Carex feta G. Douglas Barbe; J. T. Howell, T. C. Fuller 1981-6-22 3052 Yuba Meadow 3.6 miles NE of Strawberry Valley on La Porte-Quincy Road, at the county line with Plumas Co. 1280 Comment
  CHSC84215  Carex feta Lowell Ahart 2003-7-6 10361 Yuba In a meadow, east of the power line, about 60 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  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
  CDA17816  Carex feta G. D. Barbe, J. T. Howell (54093 at CAS) & T. C. Fuller 1981-6-22 3052 Yuba 3.6 miles NE of Strawberry Valley on La Porte-Quincy Road, at the county line with Plumas Co. 1280 Comment
  SEINET10650510  Carex feta Lewis S. Rose 1940-5-28 Rose 40384 Yuba Browns Valley. 61 Comment
  SEINET7558578 Image available Carex feta Andrew L. Hipp, Glen C. Clifton 1999-5-29 385 Yuba Marysville Road. Comment
  CDA33076  Carex fracta G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3048 Yuba 3.6 miles northeast of Strawberry Valley on La Porta-Quincy Road, at Plumas County Line. Comment
  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
  UC836272  Carex gracilior Lewis S. Rose 1940-5-28 40380 Yuba Browns Valley 60 Comment
  CAS-BOT-BC146654  Carex hirtissima Lewis S. Rose 1940-5-28 40386 Yuba Browns Valley 60 Comment
  CAS-BOT-BC146662  Carex hirtissima Lewis S. Rose 1940-5-28 40386 Yuba Browns Valley 60 Comment
  CHSC107174  Carex hirtissima L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10377 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 meadow. 750 Comment
  JEPS104243  Carex hirtissima Lowell Ahart 2003-7-6 10359 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
  JEPS87677  Carex hirtissima Lowell Ahart 1994-6-5 7304 Yuba ca. 3 (air) mi e Forbestown (s side of creek, e side of Forbestown Rd.); Costa Creek 853 Comment
  JEPS87678  Carex hirtissima Lowell Ahart 1994-6-5 7304 Yuba ca. 3 (air) mi e Forbestown (s side of creek, e side of Forbestown Rd.); Costa Creek 853 Comment
  RSA769203  Carex hirtissima P. F. Zika 2010-6-22 24979 Yuba West side of Challenge Cut-off, 2.5 air km northeast of Brownsville, Northern Sierra Nevada Highlands 755 Comment
  SEINET13709580  Carex hirtissima Lowell William Ahart, Lowell William Ahart 2003-1 10359 Yuba 5 Mi. N of Dobbins Near Fountain Hill Road (39 Deg 26'11.7"N, 121 Deg 12'07.3"W) 2746 Ft. 837 Comment
  CHSC84197  Carex lemmonii Lowell Ahart 2003-7-6 10360 Yuba Along a small stream in a meadow, east of the power line, about 50 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  UCD81490  Carex lenticularis Christopher Michael Bronny 2009-3-23 2 Yuba Lower Sierra Nevada foothills. Area near Loma Rica. Brown's Valley Irrigation Ditch. 152 Comment
  CHSC115302  Carex multicaulis Lowell Ahart 2015-4-30 20125 Yuba Open forest, on the south side of the gravel road, about 10 yards east of the gate, about 3/4 mile (air) southeast of Woodleaf. Mixed Evergreen Forest. 948 Comment
  CHSC96876  Carex stipata var. stipata Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-13 14298 Yuba On the south side of Hampshire Creek, on the southeast side of a large wet meadow, about 80 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS113713  Carex stipata var. stipata Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14298 Yuba On the south side of Hampshire Creek, on the southeast side of a large wet meadow, about 80 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills 1021 Comment
  CAS-BOT-BC117350  Carex stipata var. stipata Beecher Crampton 1966-6-14 7758 Yuba 1 mi E of Brownsville, La Porte Road. Comment
  SEINET7577235 Image available Carex subfusca Andrew L. Hipp, Glen C. Clifton 1999-5-29 400 Yuba Little Oregon Creek. Comment
  CDA43057  Carex xerophila L. P. Janeway 2006-5-24 8619 Yuba Northern High Sierra Nevada Foothils.; East side of Ponderosa Way 1.3 km north of La Porte Road and Brownsville. Comment
  CHSC102952  Carex xerophila L. P. Janeway 2006-5-24 8626 Yuba Northern Sierra Nevada Foothills. Along Forsythe Road 2.7 road km south of New York House Road; above Prince Albert Creek. 604 Comment
  CHSC115874  Carex xerophila Peter F. Zika; L. P. Janeway 2012-5-16 25871 Yuba Just e of junction of Jiggs Road and Ponderosa Way, 3 air km W of Ruff Hill, Brownsville. 715 Comment
  JEPS121793  Carex xerophila L. P. Janeway 2006-5-24 8626 Yuba Northern Sierra Nevada Foothills. Along Forsynthe Road 2.7 road km south of New York House Road; above Prince Albert Creek. Comment
  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
  SEINET12650011 Image available Carex xerophila L. P. Janeway 2006-1 8616 Yuba 771 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
  UCD80256  Carex xerophila CNPS SN Foothill Team 2005-5-31 SNFN 0329 a Yuba BLM Ponderosa Landfill, east of the defunct landfill. 699 Comment
  CHSC115869  Carex xerophila Peter F. Zika; L. P. Janeway 2012-5-16 25870 Yuba Ponderosa Way near La Porte Road, picnic area N of airport, 2.7 air km WSW of Ruff Hill, Brownsville. 665 Comment
  SEINET10806562  Carex xerophila Peter F. Zika, Lawrence P. Janeway 2012-5-16 Zika 25871 Yuba E of junction of Jiggs Road and Ponderosa Way, 3 air km W of Ruff Hill, Brownsville. Northern Sierra Nevada Foothill/Highlands boundary (nSNF/H) 715 Comment
  CHSC41265  Castilleja affinis J. D. Jokerst 1984-4-23 1984 Yuba Ca. 1/4 mile north of the north Fork of the Yuba River at Wambo Bar. Comment
  UCD122152  Castilleja affinis Kathleen Keliher 1975-5-14 105 Yuba Near Road 5 and Cook Area, L 1-21 project area, Sierra Foothill Field Station. 243 Comment
  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
  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
  CHSC96570  Castilleja lacera L. P. Janeway 2006-5-24 8632 Yuba Northern Sierra Nevada Foothills. South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. 483 Comment
  JEPS118574  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. French Corral 7.5; quad. Comment
  SJSU11535  Castilleja lineariloba J. B. Willis Jr. 1969-4-19 Yuba 3 mi W of Smartville on Hammonton-Smartville Rd 182 Comment
  UCD122574  Castilleja lineariloba Barbara Yungert 1974-4-17 59 Yuba North of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UCD122592  Castilleja lineariloba Barbara Yungert 1974-4-25 89 Yuba SC-14 project area, Sierra Foothill Field Station. Comment
  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
  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
  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
  UCD110816  Ceanothus cuneatus Christopher Mallek 2008-1 s.n. Yuba Indiana Creek. 617 Comment
  UCD112086  Ceanothus cuneatus Barbara Yungert 1974-4-14 35 Yuba east of Road 5, K 1-11 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC64377  Ceanothus diversifolius Elmer I. Applegate 1934-5-2 8891 Yuba Indian Valley Region, northern Yuba County. Comment
  CAS-BOT-BC50706  Ceanothus integerrimus Elmer I. Applegate 1934-5-2 8894 Yuba Near Indian Valley, northern Yuba County Comment
  CAS-BOT-BC50708  Ceanothus integerrimus Lester Rowntree 1941-5-14 s.n. Yuba On road between Dobbin and Comptonville 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
  UCR196981  Ceanothus integerrimus George K. Helmkamp, E. A. Helmkamp 2008-5-20 13466 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  SEINET5339313  Ceanothus integerrimus D. Kaplan s.n. Yuba Dobbins, Ca., Hwy 49 roadside. 1067 Comment
  CHSC10762  Ceanothus integerrimus var. californicus Lowell Ahart 1968-5-15 Yuba Near Bullards Bar Dam. 914 Comment
  CDA14563  Ceanothus integerrimus var. macrothyrsus G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3040 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  CAS-BOT-BC50587  Ceanothus lemmonii John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54071 Yuba Sierra Nevada - 1/4 miles southwest of Bullards Bar Dam on road to Challenge 609 Comment
  CDA14556  Ceanothus lemmonii G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3032 Yuba 1.4 miles west of New Bullards Bar Dam, between Log Cabin and Camptonville. 609 Comment
  SBBG4337  Ceanothus lemmonii H. and M. Dearing 1939-5-6 3286 Yuba W of Challenge 609 Comment
  SJSU14260  Ceanothus lemmonii N. A. Hopkins 1989-4-28 1484 Yuba by Ridge Rd to Allegheny c. 3 mi off Hwy 49 914 Comment
  UC1281465  Ceanothus lemmonii H. E. McMinn 1946-5-11 5505 Yuba Along highway from Dobbins to Comptonville Comment
  UCD112077  Ceanothus lemmonii Beecher Crampton 1966-6-14 7761 Yuba 1 mile west of Brownsville. Comment
  UCD112157  Ceanothus lemmonii H. and M. Dearing 1939-5-6 3286 Yuba West of Challenge. 609 Comment
  CHSC32103  Ceanothus prostratus L. Ahart 1975-5-4 749 Yuba Near Brownsville. 609 Comment
  UCD130041  Centaurea melitensis Beecher Crampton 1971-6-18 8736 Yuba Sierra Foothill Range Field Station. Ca. 7 miles E of Browns Valley. 'Black Oak Pass' area. Comment
  JEPS21726  Centaurium muehlenbergii Alice Eastwood 1913-7-3 Yuba Wheatland 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
  CHSC47411  Centaurium tenuiflorum Lowell Ahart 1981-6-13 2856 Yuba Along the banks of a small stream, west of McGinn Hill, east of Loma Rica. 304 Comment
  CHSC96870  Centaurium tenuiflorum Lowell Ahart 2007-6-30 14228 Yuba Sides of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  JEPS120966  Centaurium tenuiflorum Lowell Ahart 2013-11-30 19308 Yuba on N side of Dry Creek, below the high water line of Collins Lake, about 300 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  JEPS124144  Centaurium tenuiflorum Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20637 Yuba Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  UC1123397  Centaurium venustum M. A. Elvin 1933-7-10 48 Yuba 2 mi w Dobbin; Smartsville Quad. 457 Comment
  JEPS114056  Centromadia fitchii Robert E. Preston 2007-9-21 2578 Yuba 3.5 mi S of Olivehurst, at jct Plumas-Arboga Rd and Old Marysville Rd. Comment
  JEPS120986  Centromadia fitchii Lowell Ahart 2013-11-30 19311 Yuba on N side of Dry Creek, below the high water line of Collins Lake, about 300 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  UC1069524  Centromadia fitchii M. A. Elvin 1933-6-7 21 Yuba 3 mi se O'Brien's Ranch; Smartsville Quad. 60 Comment
  CAS-BOT-BC288824  Centromadia fitchii Mrs. S. Earle Kelley 1920-10-31 s.n. Yuba [Los Verjeles?] Comment
  JEPS113633  Centunculus minimus Lowell Ahart 2007-5-12 13810 Yuba Bottom of a scraped area, about 30 feet west of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC46538  Cephalanthera austiniae Lowell Ahart 1974-5-29 457 Yuba About 1 mile north of Challenge. 914 Comment
  JEPS125922  Cephalanthera austiniae D. W. Taylor 2001-6-19 17796 Yuba Ca 3 air miles SW of Union Hill, along Forest Road 20N35 tributary to Brush Creek near Diamond Ravine. Comment
  CHSC78137  Cerastium glomeratum Lowell Ahart 2000-6-11 8464 Yuba On the sides of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  CAS-BOT-BC400180  Ceratophyllum demersum W. V. Middlekauff 1955-7-4 s.n. Yuba 3 miles n.w. of Rio Oso Post Office Comment
  CAS-BOT-BC207378  Cercis occidentalis Saichi Kawahara 1969-4-13 304 Yuba Park's Bar, Highway 29 at north bank Yuba River 91 Comment
  UCD105667  Cercis occidentalis Barbara Yungert 1974-5-16 162 Yuba Along Dry Creek, below Porter fence line, P-2 project area, Sierra Foothill Field Station. Comment
  SEINET12167216  Cercis occidentalis F. H. Utech 1990-1 90 -858 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  CAS-BOT-BC136994  Cercocarpus betuloides var. betuloides Lowell Ahart 1977-4-18 s.n. Yuba Along Dry Creek about 10 miles northeast of Marysville 100 Comment
  CAS-BOT-BC140761  Chamaebatia foliolosa Elmer I. Applegate 1934-5-2 8896 Yuba Near Indian Valley Comment
  CHSC112869  Chamaebatia foliolosa L. P. Janeway 2014-4-24 11232 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  CHSC81781  Chamaesyce maculata Lowell Ahart 2001-11-2 9399 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  CHSC83041  Chamaesyce maculata Lowell Ahart 2002-10-9 9967 Yuba On the west bank of a small stream, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS103340  Chamaesyce maculata Lowell Ahart 2002-10-9 9967 Yuba On the W bank of a small stream, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS94623  Chamaesyce maculata Lowell Ahart 1997-8-7 7806 Yuba on n side of New York Flat Road about 1 mi nw La Porte Road (about 1 mi n of Brownsville) 731 Comment
  CDA4786  Chamaesyce nutans L. Ahart 1999-9-5 8191 Yuba On the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. Comment
  CHSC78142  Chamaesyce ocellata subsp. ocellata Lowell Ahart 2000-6-11 8469 Yuba On the west side of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 152 Comment
  JEPS98575  Chamaesyce ocellata subsp. ocellata Lowell Ahart 2000-6-11 8469 Yuba 6 mi (air) S of Smartville (W side of Smartville Road, 2 mi N of int. with Waldo Road) 152 Comment
  CDA42981  Chamaesyce serpillifolia subsp. serpillifolia L. Ahart 2013-11-3 19299 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. Comment
  CHSC113181  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2013-11-30 19299 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  CHSC83040  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2002-10-9 9966 Yuba On the west bank of a small stream, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CHSC97707  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2007-11-8 14580 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  JEPS103420  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2002-10-9 9966 Yuba On the W bank of a small stream, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  RSA0037020  Chamaesyce serpillifolia subsp. serpillifolia Lowell A. Ahart 2013-11-30 19299 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  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
  CHSC97136  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
  CAS-BOT-BC205805  Chlorogalum angustifolium James R. Shevock; Bob Holland 1985-5-6 11125 Yuba Sacramento Valley. Beale Air Force east of Marysville 40 Comment
  RSA795982  Chlorogalum angustifolium James R. Shevock, Robert Holland 1985-5-6 11125 Yuba Beale Air Force Base E of Marysville. Pools adjacent to runway. 40 Comment
  SEINET4566903 Image available Chlorogalum angustifolium James R. Shevock, Bob Holland 1985-1 11125 Yuba Sacramento Valley. Beale Air Force east of Marysville. Pools adjacent to runway. 40 Comment
  CAS-BOT-BC498794  Chlorogalum angustifolium J. T. Howell; Gordon H. True 1971-5-26 47612 Yuba Rocky, pebbly flats and hollows where water has stood but now dry, about 8 miles east of Marysville 30 Comment
  CHSC115914  Chlorogalum pomeridianum var. pomeridianum L. P. Janeway 2015-7-1 11797 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, one of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. 815 Comment
  CHSC115915  Chlorogalum pomeridianum var. pomeridianum L. P. Janeway 2015-7-1 11797 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, one of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. 815 Comment
  CDA18832  Chondrilla juncea E. Finley 1999-7-28 PDR 1013545 Yuba Oregon House 0 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
  CHSC83039  Chondrilla juncea Lowell Ahart 2002-10-10 9978 Yuba On the east side of the dirt road, east of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20. 166 Comment
  CHSC93154  Chondrilla juncea L. P. Janeway 1994-8-9 4725 Yuba Northern High Sierra Nevada. East side of Slate Creek about 3 mi northeast of Strawberry Valley; along Road 20N35 (road to Scales) 0.4 mi southeast of its bridge across Slate Creek. 1036 Comment
  JEPS102449  Chondrilla juncea Lowell Ahart 2001-8-14 9108 Yuba On the south side of Marysville Road, about 50 yards east of the east end of Bullards Bar Dam. 609 Comment
  JEPS102507  Chondrilla juncea Lowell Ahart 2001-11-2 9409 Yuba On the east side of Smartville Road, about 4 miles (air) south of Smartville. 175 Comment
  RSA750426  Chondrilla juncea George K. Helmkamp, E. A. Helmkamp 2008-9-18 14130 Yuba Bullards Bar Dam, along Marysville Road, 6 miles southwest of its junction with CA-49 616 Comment
  CDA10772  Chrysothamnus nauseosus subsp. albicaulis L. Ahart 2002-9-8 9936 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
  SEINET7042660  Cirsium occidentale A. G. Vestal 1963-5-30 s.n. Yuba Turn off to Timbuctoo at Yuba river. Smartville quadrangle UTM Zone 10, 644012mE, 4342272mN. Comment
  CAS-BOT-BC228729  Cistanthe umbellata Lowell Ahart 1980-8-12 2548 Yuba Along Slate Creek 1250 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
  UCD104549  Clarkia gracilis Kathleen Keliher 1975-5-8 100 Yuba Above Dry Creek, between two cattle guards on Scott-Forbes Road, Rowell's property. 152 Comment
  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
  UC1071988  Clarkia gracilis subsp. gracilis H. and M. Lewis, M. Roberts 1951-5-19 820 Yuba 2.3 mi e Oregon House Comment
  CAS-BOT-BC172029  Clarkia gracilis subsp. gracilis Alice Eastwood 1921-5-22 10562 Yuba Los Vergils Comment
  SJSU10991  Clarkia gracilis subsp. gracilis J. B. Willis Jr. 1969-4-27 70 Yuba S bank Yuba R on old stage rd to Timbuctoo just off Hwy 20, 18 mi E of Marysville Comment
  RSA0004430  Clarkia mildrediae L. P. Janeway 1995-7-15 4854 Yuba Inner canyon of Slate Creek, 3 mi northeast of Strawberry Valley; along Road 10N35 2.15 mi northeast of Road 20N04. Southwest facing road cut bank through greenstone and metamorphic rocks. 1006 Comment
  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
  CHSC108229  Clarkia purpurea subsp. quadrivulnera Lowell Ahart 2011-6-7 17405 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS118291  Clarkia purpurea subsp. quadrivulnera Lowell Ahart 2011-6-7 17405 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CAS-BOT-BC163419  Clarkia purpurea subsp. quadrivulnera Alice Eastwood 1921-5-22 10518 Yuba Los Vergils Comment
  CAS-BOT-BC164773  Clarkia rhomboidea Barbara T. Keller 1975-6-10 s.n. Yuba Willow Glen Rd. from Stanfield Hill to Brownsville, 11.5 mi. north of junction with Marysville Rd. Comment
  CHSC70761  Clarkia stellata L. P. Janeway; Loren Gehrung, Karen Lee, Marcile Sigler, C. Sivil 1993-6-15 4384 Yuba 1.3 mi east of Woodleaf, 1.2 mi southwest of Clipper Mills; uppermost drainage of Slapjack Creek. 1043 Comment
  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
  UCD147082  Clarkia unguiculata Chuck Hughes 2013-5-2 367 Yuba Northwest margin of Camp Far West Reservoir. 93 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
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Jun 29 2014
  CHSC59586  Claytonia parviflora subsp. parviflora H. E. Mac Lennan 1992-4-5 5 Yuba 20 air miles se of Oroville. 441 Comment
  UCD100707  Claytonia parviflora subsp. parviflora Barbara Yungert 1974-4-16 40 Yuba Cambell Valley, Sierra Foothill Field Station. Comment
  SEINET5337776  Clematis lasiantha C. Aarstad 1979-4-28 s.n. Yuba At jct. of Rt. 20 and north fork of Yuba in Browns Valley. 183 Comment
  CHSC68481  Collinsia heterophylla Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir. 1997-4-6 7722 Yuba South of the poor dirt road, north of the Browns Valley Water Ditch, south of Dry Creek, about 1 mile east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 182 Comment
  JEPS94316  Collinsia heterophylla Lowell Ahart 1997-4-6 7722 Yuba about 17 mi ne of Marysville (s of the poor dirt road, n of the Browns Valley Water Ditch, s of Dry Creek, about 1 mi e of Scott Forbes Road (Long Bar Road)) 182 Comment
  SJSU11584  Collinsia heterophylla J. B. Willis Jr. 1969-4-27 Yuba S bank Yuba R near old stage rd to Timbuctoo off State Hwy 20, 18 mi E of Marysville Comment
  UCD123625  Collinsia heterophylla Barbara Yungert 1974-5-9 101 Yuba northeast of Upper Schubert project area, Sierra Foothill Field Station. Comment
  JEPS6367  Collinsia tinctoria Rimo Bacigalupi and L. R. Heckard 1952-6-20 3755 Yuba 1.5 mi due s Brownsville (along rd from Brownsville to Oregon House, just n of Washington Mill) 609 Comment
  UCD35868  Collinsia tinctoria Beecher Crampton 1965-6-17 7378 Yuba ca. 0.75 mile north of Stanfield Hill, Willow Glen Creek. 396 Comment
  UCD33666  Collinsia tinctoria Beecher Crampton 1971-6-18 8738 Yuba Sierra Foothill Range Field Station, ca. 6.5 miles east of Browns Valley. Comment
  CHSC63260  Collomia heterophylla Lowell Ahart 1994-6-5 7297 Yuba On the north side of Costa Creek, on the south side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  JEPS95484  Collomia heterophylla Lowell Ahart 1994-6-5 7297 Yuba 3 air miles E of Forbestown (N side of Costa Creek, S side of Forbestown Road) 853 Comment
  POM161752  Collomia heterophylla R. C. Bacigalupi 1927-7-2 1582 Yuba Road to Downieville, 2 miles west of Camptonville Comment
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Nov 9 2011
  UCR197053  Collomia heterophylla George K. Helmkamp, E. A. Helmkamp 2008-5-20 13477 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  CHSC115205  Collomia tinctoria Lowell Ahart 2015-4-30 20129 Yuba On the east side of the quarry, about 1 1/4 miles (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. 709 Comment
  JEPS123869  Collomia tinctoria Lowell Ahart 2015-4-30 20129 Yuba About 1 1/4 miles (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. Comment
  UCD126194  Convolvulus arvensis G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12839 Yuba Northern Sierra Nevada Mountains: along Hwy. CA-49, 0.5 mile south of Camptonville. 817 Comment
  CDA7451  Conyza bonariensis L. Ahart 1999-9-17 8254 Yuba Sam Shintaffer Farm, on the west side of Kimball Lane, near the intersection of Kimball Lane and Hallwood Boulevard, about 3/4 mile south of Sam Shintaffer s rice dryer, about 4 1/4 miles (air) northeast of Marysville. Comment
  JEPS124143  Conyza canadensis Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20638 Yuba Below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CAS-BOT-BC288971  Conyza floribunda Lowell Ahart 1980-6-19 2392 Yuba Along La Porte Rd, near Rackerby 320 Comment
  JEPS95066  Cordylanthus tenuis subsp. tenuis Lowell Ahart 1997-8-7 7813 Yuba 3 air mi se of Challenge (on n. side of dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  JEPS112920  Cornus nuttallii Dean W. Taylor 2001-7-31 17849 Yuba creek along Forest Road 20N35 tributary to Brushy Creek near Diamond Ravine (ca. 3 air miles SW of Union Hill) 1127 Comment
  SEINET12137803  Cornus nuttallii F. H. Utech 1990-1 90 -868 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  UC1330014  Cornus sericea subsp. sericea Beecher Crampton 1966-6-14 7739 Yuba 1 mi. e. Brownsville (La Porte Rd.) Comment
  UCD117333  Cornus sericea subsp. sericea Beecher Crampton 1966-6-14 7739 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  SJSU10212  Cornus sessilis C. W. Sharsmith 1983-6-7 8793 Yuba Rose Ranch c. 4 mi NE of Strawberry Valley (Yuba Co) on Quincy-La Porte Rd; Yuba & Sierra county boundary 1432 Comment
  CDA3696  Coronopus didymus L. Ahart 1999-9-17 8250 Yuba Sam Shintaffer Farm, south of Woodruff Lane, south of Mathews Road, about 1/4 mile south of Sam Shintaffer s rice dryer, about 4 1/2 miles (air) northeast of Marysville. Comment
  CHSC116269  Crassula aquatica Lowell Ahart 2015-11-19 20690 Yuba 100 yards or more north of spillway area, below high water line, west of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  CHSC90488  Crassula tillaea Lowell Ahart 2005-3-11 11597 Yuba On the west side of the poor dirt road, about 1/2 mile west of Marysville Road, about 1/4 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/4 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 344 Comment
  JEPS107407  Crassula tillaea Lowell Ahart 2005-3-11 11597 Yuba On W side of the poor dirt road, ca. 1/2 mi W of Marysville Rd, ca. 1/4 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/4 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 344 Comment
  JEPS118318  Crucianella angustifolia Lowell Ahart 2011-6-7 17411 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UC1278015  Crucianella angustifolia Beecher Crampton 1957-6-5 4163 Yuba Timbuctoo Comment
  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
  SEINET7042658  Crucianella angustifolia A. G. Vestal 1963-5-30 s.n. Yuba Turn off to Timbuctoo at Yuba river. Smartville quadrangle UTM Zone 10, 644012mE, 4342272mN. Comment
  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
  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
  SEINET10661810  Crypsis alopecuroides Lowell Ahart 2007-11-8 Ahart 14591 Yuba T14N, R6E, Section 15. About 1.4 mile north of Rock Creek, on the strand of Camp Far West Reservoir, about 6 1/2 miles (air) northeast of Sheridan. 69 Comment
  CHSC81845  Crypsis schoenoides Lowell Ahart 2001-11-2 9405 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  JEPS121316  Crypsis vaginiflora Lowell Ahart 2013-11-30 19301 Yuba On the sides of a deep wash (Willow Glen Creek), NW of Dry Creek, below the high water line of Collins Lake, about 100 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  CHSC46747  Cryptantha affinis Lowell Ahart 1980-8-12 2544 Yuba Large gravel bar that is formed by a debris dam across Slate Creek, west of Gold Run Creek, east of Onion Creek, about 7 air miles south of La Porte. 1158 Comment
  CHSC108223  Cryptantha flaccida Lowell Ahart 2011-6-7 17386 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CAS-BOT-BC80750  Cupressus macnabiana C. B. Wolf; E. R. Johnson 1934-10-3 6152 Yuba Sierra Nevada Foothills, Texas Hill, approx. 2 mi. W., of Dobbins 548 Comment
  CAS-BOT-BC80751  Cupressus macnabiana C. B. Wolf; E. R. Johnson 1934-10-4 6157 Yuba Sierra Nevada Foothills, N. side Indiana Creek, 1 7/10 mi. W. of Indiana Ranch 548 Comment
  CAS-BOT-BC80755  Cupressus macnabiana Junea Kelley 1922-7-16 s.n. Yuba Dobbins Comment
  CHSC96604  Cupressus macnabiana L. P. Janeway 2006-5-24 8627 Yuba Northern Sierra Nevada Foothills. Along Forsythe road 2.7 road km south of New York House Road; above Prince Albert Creek. 604 Comment
  RSA17597  Cupressus macnabiana C. B. Wolf, E. R. Johnson 1934-10-4 6157 Yuba N side of Indiana Creek, 1.7 miles W of Indiana Ranch. Sierra Foothills. 549 Comment
  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
  UCD110802  Cupressus macnabiana Christopher Mallek 2008-1 s.n. Yuba Daken Flat. 675 Comment
  UCD110843  Cupressus macnabiana Christopher Mallek 2008-1 s.n. Yuba Bald Mountain. 935 Comment
  UCD133516  Cupressus macnabiana E. L. Begg 1970-8-6 s.n. Yuba Lake Mildred, Oregon House. 609 Comment
  NY16739  Cupressus macnabiana C. B. Wolf 1934-10-3 6151 Yuba This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SEINET10531459  Cupressus macnabiana Carl B. Wolf, E. R. Johnson 1934-10-4 Wolf 2218 Yuba Siera Nevada foothills, N side Indiana Creek, 1 7/10 mi W of Indiana Ranch. Upper sonoran:- Digger Pines, Quercus wislizenii. Sun. Rocky S slope. 550 Comment
  SEINET10867000  Cupressus macnabiana Carl B. Wolf, E. R. Johnson 1934-10-4 Wolf 2118 Yuba Sierra Nevada foothills, N. side Indiana Creek, 1 7/10 mi W of Indiana Ranch. Upper sonoran:- Digger Pines, Quercus wislizenii. Sun. Rocky S slope. 550 Comment
  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
  CDA41307  Cuscuta japonica J. Deviney, Anderson, Umino 2005-8-3 PDR 1295323 Yuba Sacramento Valley; 4838 Western Ave, Olivehurst. 0 Comment
  CDA41308  Cuscuta japonica B. Umino 2005-10-4 PDR 1295324 Yuba Sacramento Valley; 4838 Western Ave, Olivehurst. 0 Comment
  CHSC97772  Cuscuta pentagona Lowell Ahart 2007-11-1 14536 Yuba On Xanthium strumarium, on the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  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
  JEPS113724  Cynodon dactylon Lowell Ahart 2007-5-14 13845 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  SEINET10515415  Cynodon dactylon Wiegand 1921-8-25 WIEGAND 200 Yuba Dry gravel roadside, near Marysville. Comment
  CHSC107310  Cynosurus echinatus L. P. Janeway 2011-7-5 10492 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. 750 Comment
  JEPS118323  Cynosurus echinatus Lowell Ahart 2011-6-7 17429 Yuba East of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCD60177  Cynosurus echinatus Beecher Crampton 1965-6-17 7382 Yuba 2 miles south Brownsville, Willow Glen Road. 792 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
  SEINET9756953 Image available Cyperus difformis Richard Carter 2006-7-31 Yuba 12.5 mi ENE Marysville jct. Hwy CA 20 and Hwy CA 70, by Hwy CA 20 Comment
  CHSC97755  Cyperus eragrostis Lowell Ahart 2007-11-1 14540 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  JEPS113718  Cyperus eragrostis Lowell Ahart 2007-6-30 14229 Yuba Sides of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 29 Comment
  JEPS95960  Cyperus eragrostis Lowell Ahart 1999-9-5 8196 Yuba on the disturbed area on the south side of Woodruff Lane; just west of Kimball Lane; about 5 miles (air) northeast of Marysville 24 Comment
  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
  UCD162515  Cyperus eragrostis Steve Matson 2007-5-19 1711 Yuba nSNF; lower Sierra foothills westslope; about 1 mile south of Highway 20, off Smartville Rd. Smiling Dog Ranch. 268 Comment
  CAS-BOT-BC114574  Cyperus eragrostis W. V. Middlekauff 1954-9-11 s.n. Yuba 3 mi NW of Rio Oso Post Office. Comment
  CHSC116338  Cyperus erythrorhizos Lowell Ahart 2015-11-19 20683 Yuba 100 yards or more north of the spillway area, below the highwater line, west side of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  CHSC83031  Cyperus erythrorhizos Lowell Ahart 2002-10-8 9945 Yuba On the edge of a pond, about 100 yards north of Long Ravine Road, about 300 yards southeast of the intersection of Camp Far West Road and Long Ravine Road there is a poor gate on the north side of the road, north of Camp Far West Reservoir. 121 Comment
  CDA2590  Cyperus esculentus L. Ahart 1999-9-5 8195 Yuba On the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. Comment
  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
  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
  CHSC83232  Cyperus niger Lowell Ahart 2002-10-8 9946 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
  JEPS103482  Cyperus niger Lowell Ahart 2002-10-8 9946 Yuba On the edge of a pond, ca 100 yards N of Long Ravine Road, ca 300 yards SE of the intersection of Camp Far West Road and Long Ravine Road there is a poor gate on the N side of the road, N of Camp Far West Reservoir. 121 Comment
  CHSC43569  Cyperus rotundus Lowell Ahart 1978-10-28 1819 Yuba In the yard of Mr. and Mrs. Marion Bew, at H and 13th Street, Marysville. 30 Comment
  RSA299224  Cyperus rotundus L. Ahart 1978-10-28 s.n. Yuba H and 13th streets, Marysville Comment
  SEINET5327050  Cytisus scoparius M. J. Williams 1967-5-14 s.n. Yuba Camptonville 914 Comment
  CAS-BOT-BC190488  Dactylis glomerata Barbara T. Keller 1975-6-10 1506 Yuba Challenge Experimental Forest on La Porte Road near Challenge. 762 Comment
  CAS-BOT-BC190489  Dactylis glomerata Lowell Ahart 1979-6-25 s.n. Yuba 1 mile south of Challenge. Comment
  POM319563  Dactylis glomerata Patricia Wilder 1971-6-23 5209 Yuba West slope of the Sierra Nevada Mt. Range; Oregon Hill Road, 5.5 miles southeast of Challenge; west of California State Highway 49; Yuba River drainage area. Growing along roadside. 701 Comment
  UCD60188  Dactylis glomerata Barbara Yungert 1974-5-9 G- 7 Yuba Sierra Foothill Field Station. Along Road 1, near P 1-13 fence, W of Porter Hill. Comment
  CAS-BOT-BC205804  Damasonium californicum James R. Shevock; Bob Holland 1985-5-6 11132 Yuba Sacramento Valley. Beale Air Force east of Marysville 40 Comment
  CAS-BOT-BC189855  Danthonia californica Lowell Ahart 1979-6-25 s.n. Yuba 2 miles east of Challenge. 700 Comment
  CDA31642  Danthonia californica var. americana T. C. Fuller 1971-6-13 19889 Yuba East side of Lake Francis, Lake Francis Rd., 1 mile southeast of Dobbins. 0 Comment
  CHSC112950  Danthonia californica var. americana L. P. Janeway 2014-6-26 11421 Yuba Northern High Sierra Nevada. Plumas National Forest; small ephemeral meadow on a flattish bench at head of ephemeral northeastern tributary to Little Oregon Creek; 1.9 air km south-southeast of Pike County Peak; 0.24 km northeast of Oregon Hill Road, 0.15 km south of Peterson Ridge Road. 852 Comment
  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
  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
  UCD60730  Danthonia californica var. americana Beecher Crampton 1965-6-17 7380 Yuba 4 miles S of Brownsville, Willow Glen Road. 670 Comment
  RSA653943  Danthonia unispicata Beecher Crampton 1966-6-14 7764 Yuba 1 mile east of Brownsville on La Porte road, near Brownsville Fire Station, CA div. of Forestry. Comment
  SEINET238188 Image available Danthonia unispicata Beecher Crampton 1966-6-14 7764 Yuba 1 mile east of Brownsville on La Porte road near Brownsville Fire Station CA div. of Forestry. Comment
  UCD102619  Darmera peltata Kathleen Keliher 1975-5-8 99 Yuba Off Forbestown Road, near Catttle guards, Rowell's property. 152 Comment
  CHSC97227  Daucus carota Lowell Ahart 2007-6-22 14213 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
  JEPS113454  Daucus carota Lowell Ahart 2007-6-22 14213 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
  UC635338  Delphinium gracilentum H. L. Mason 1927-5-11 3732 Yuba near Dobbins 457 Comment
  CAS-BOT-BC8791  Delphinium gracilentum Gordon H. True 1962-5-1 533 Yuba Comptonville-Downieville Highway, about 1 mile north of Comptonville 822 Comment
  SEINET12104133  Delphinium gracilentum F. H. Utech 1990-6-5 90 -869 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  CAS-BOT-BC8558  Delphinium hansenii H. Lewis; C. Epling 1946-5-5 606 Yuba Bridge 2234, 3.8 miles west of Winters 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
  UCD95782  Delphinium hansenii Barbara Yungert 1974-5-30 187 Yuba South of road, SC-13 project area, Sierra Foothill Field Station. Comment
  UC1031402  Delphinium hansenii subsp. hansenii H. Lewis and C. Epling 1941-5-26 Yuba Smartville Comment
  CAS-BOT-BC10237  Delphinium hesperium R. K. Wellman 1981-5-17 025 Yuba Junction of county roads E-20 and E-21 152 Comment
  CHSC41270  Delphinium patens J. D. Jokerst 1984-4-23 1982 Yuba Ca 1/2 mile north of the N Fork Yuba River at Wambo Bar. Comment
  UCD96556  Delphinium patens Barbara Yungert 1974-4-12 28 Yuba Along fence near county road, F-51 project area. Sierra Foothill Field Station. Comment
  CAS-BOT-BC116482  Delphinium patens subsp. patens Ella D. Cantelow 1968-5-6 s.n. Yuba Near Gales Orchard ca. 6 miles east of Camptonville 1249 Comment
  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
  SEINET7042738  Delphinium variegatum A. G. Vestal 1963-5-30 s.n. Yuba Roadside between Daken Flat and the road north northeast to Brownsville. 5.3 miles north of the Dry Creek bridge. Rackerby quadrangle UTM Zone 10, 647847mE, 4368678mN. Comment
  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
  UCD62773  Deschampsia danthonioides Beecher Crampton 1963-5-11 7322 Yuba 2.5 miles southwest of Brown's Valley. Comment
  UCD63571  Deschampsia elongata Beecher Crampton 1966-6-14 7747 Yuba 1 mile east of Brownsville. 731 Comment
  CAS-BOT-BC43427  Descurainia sophia Lowell Ahart 2007-5-12 13782 Yuba Along road to the power towers, about 20 yards south of the first power tower, about 50 yards north of Fruitland Road. 35 Comment
  UC634899  Dicentra formosa Herbert L. Mason 1927-5-11 3734 Yuba near Bullards Bar; Yuba River Canyon 609 Comment
  UCR191122  Dicentra formosa George K. Helmkamp, E. A. Helmkamp 2007-8-29 12829 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-BC402378  Dicentra formosa subsp. formosa Herbert L. Mason 1927-5-11 3734 Yuba Near Bullards Bar 609 Comment
  CAS-BOT-BC402379  Dicentra formosa subsp. formosa Rimo Bacigalupi 1927-7-2 1592 Yuba Halfway to Downieville about 8 miles northeast of Camptonville Comment
  CAS-BOT-BC253651  Dichanthelium acuminatum subsp. acuminatum Lowell Ahart 1979-6-25 s.n. Yuba 2 miles E of Challenge 700 Comment
  UC1552706  Dichanthelium acuminatum subsp. fasciculatum Frederica Bowcutt 1985-6-8 586 b Yuba 1 air mi se Camptonville (12 air mi n of Nevada City, along Oregon Creek, Tahoe National Forest); Tahoe National Forest, along Oregon Creek 762 Comment
  UCR169023  Dichelostemma capitatum David Charlton 2005-5-16 8016 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  CHSC23169  Dichelostemma capitatum subsp. capitatum Robert A. Schlising; G. Keator 1963-4-8 2496 Yuba Along Hwy 20, near Brownsville, 29.4 mi W of Nevada City. Comment
  CHSC59577  Dichelostemma capitatum subsp. capitatum H. E. Mac Lennan 1992-4-15 17 Yuba 20 air miles se of Oroville. 518 Comment
  SEINET13276746 Image available Dichelostemma capitatum subsp. capitatum George K. Helmkamp 2014-1 22767 Yuba Sierra Nevada Foothills: Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville (Smartsville 7.5' Q.) 264 Comment
  RSA333563  Dichelostemma capitatum subsp. capitatum Craig Martz, Richard F. Sannar 1982-3-25 42 Yuba Along both sides of Hammonton-Smartville Road, 1 mile E of N entrance to Beale AFB. 150 Comment
  SEINET8476503  Dichelostemma capitatum subsp. capitatum O. Reifschneider 1961-5-27 s.n. Yuba Yuba Pass Road. Comment
  UCD139439  Dichelostemma capitatum subsp. capitatum Barbara Yungert 1974-4-8 7 Yuba west end of Forbes Road 3, Sierra Foothill Field Station. 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
  SEINET7072709  Dichelostemma multiflorum A. G. Vestal 1963-5-7 s.n. Yuba About 4.7 miles northeast of Honcut on Dustone Drive and about 5.2 miles southwest of Bangor. Coordinate Datum WGS84/NAD83. (UTM Zone 10, 632602E, 4361139mN. Coordinate datum: NAD 27) Comment
  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
  SEINET7042609  Dichelostemma multiflorum A. G. Vestal 1963-5-29 s.n. Yuba Olivehurst-Smartville Road [presently Hammonton- Smartville Road]. 0.4 mile west of road south to Beale Air Force Base [Smartville Road]. Smartville quadrangle UTM Zone 10, 646242mE, 4339869mN. Comment
  UCD113420  Dichelostemma multiflorum Barbara Yungert 1974-5-3 108 Yuba West side of road, near cattle guard and U.C. sign, west of station, Sierra Foothill Field Station. Comment
  UCD139277  Dichelostemma volubile Barbara Yungert 1974-4-22 77 Yuba Along four wheel drive jeep road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UCD37872  Dichelostemma volubile Beecher Crampton 1962-4-24 6291 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD139278  Dichelostemma volubile Barbara Yungert 1974-4-18 66 Yuba along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  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-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
  CHSC62590  Diplacus torreyi L. P. Janeway 1993-6-15 4385 Yuba Plumas National Forest. 1.3 mi east of Woodleaf, 1.2 mi southwest of Clipper Mills; uppermost drainage of Slapjack Creek. 1043 Comment
  CAS-BOT-BC151333  Diplacus tricolor Lowell Ahart 2007-5-12 13815 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC97700  Dittrichia graveolens Lowell Ahart 2007-11-1 14547 Yuba On the north side of Loma Rica Road, east of the Fire Station, about 3/4 mile east of Loma Rica. 146 Comment
  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
  SEINET7072720  Downingia bacigalupii A. G. Vestal 1963-5-7 s.n. Yuba About 3.5 miles north of Wheatland on Jasper Lane. UTM Zone 10, 636590E, 4323573mN. Coordinate datum: NAD 27. Comment
  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
  UC1283735  Downingia ornatissima var. ornatissima Beecher Crampton 1965-5-11 7320 Yuba 2.5 mi sw Browns Valley Comment
  JEPS108494  Downingia ornatissima var. ornatissima Lisa Schultheis 1996-5-23 305 -95 Yuba Beale Air Force Base. Comment
  POM161767  Draperia systyla R. C. Bacigalupi 1927-7-2 1589 Yuba Highway to Downieville about 8 mi NE of Camptonville. Comment
  SJSU10221  Draperia systyla C. W. Sharsmith 1983-6-8 8802 Yuba Slate Cr at bridge-crossing of Scales & Quincy-La Porte Rds 1066 Comment
  JEPS122443  Drymocallis glandulosa var. reflexa L. P. Janeway 2014-5-12 11248 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Quad: French Corral 7.5'. Comment
  CAS-BOT-BC535048  Drymocallis glandulosa var. reflexa Elmer I. Applegate 1934-5-2 8892 Yuba Near Indian Valley Comment
  CAS-BOT-BC535049  Drymocallis glandulosa var. reflexa Peter H. Raven 1953-5-9 5467 Yuba 3 miles E of Brownsville on Bangor road Comment
  UCD136425  Dryopteris arguta G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12828 Yuba Northern Sierra Nevada Mountains Foothills: Mountain House Road 0.6 mile west of Sierra county line. Sleighville area beside Willow Creek. 1021 Comment
  CAS-BOT-BC70812  Dryopteris arguta Lowell Ahart 1974-12-29 s.n. Yuba near Costa Creek, 2 miles E. of Forbestown 518 Comment
  SEINET8472322  Dudleya cymosa C. Aarstad 1979-4-28 s.n. Yuba Browns Valley, junction of Rte. 20 and N Fork of the Yuba. 183 Comment
  UCD101899  Dudleya cymosa Barbara Yungert 1974-5-14 152 Yuba along dry rocky bank of Dry Creek, end of Road 4, Sierra Foothill Field Station. Comment
  CHSC97692  Dysphania ambrosioides Lowell Ahart 2007-11-1 14548 Yuba On the north side of Loma Rica Road, east of the Fire Station, about 3/4 mile east of Loma Rica. 146 Comment
  CHSC45550  Dysphania botrys Lowell Ahart 1977-11-13 1608 Yuba Near the edge of the road, west of the bridge across Slate Creek, about 5 miles east of Strawberry Valley. 914 Comment
  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
  JEPS121311  Dysphania pumilio Lowell Ahart 2013-11-30 19306 Yuba On the N side of Dry Creek, below the high water line of Collins Lake, about 300 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  CHSC96845  Echinochloa colona Lowell Ahart 2007-6-30 14230 Yuba Sides of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC96872  Echinochloa colona Lowell Ahart 2007-6-30 14233 Yuba Near a new ditch, near and east of a new road pad, about 350 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113486  Echinochloa colona Lowell Ahart 2007-6-30 14233 Yuba Near a new ditch, near and east of a new road pad, about 350 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  HSC9654  Echinochloa crus-galli T. F. Newman 1965-8-22 6564 Yuba Carnes Ranch, 10 mi. N of Marysville 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
  CHSC116028  Elatine Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20648 Yuba North of the spillway area, at the west side and near top of Lake Francis Dam, below the high water line of Lake Francis, about 1-1/2 miles south of Dobbins. 512 Comment
  CAS-BOT-BC113668  Eleocharis Gordon H. True 1966-4-27 2707 Yuba About 5 miles E of Wheatland and 1 mi N of Bear River. 54 Comment
  CAS-BOT-BC113669  Eleocharis Beecher Crampton 1966-6-14 7751 Yuba 1 mi E of Brownsville, La Porte Road. Comment
  UCD80266  Eleocharis acicularis CNPS SN Foothill Team 2005-7-5 SNNR 0529 Yuba CDFG Daugherty Hill Wildlife Area. 289 Comment
  CHSC78288  Eleocharis bella Lowell Ahart 2000-6-23 8507 Yuba On a dirt road, about 100 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  CHSC63295  Eleocharis bolanderi Lowell Ahart 1994-6-27 7375 Yuba In about the center of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  CHSC78296  Eleocharis bolanderi Lowell Ahart 2000-7-13 8580 Yuba In a small meadow on the south side of Ridge Road, about 1/4 mile west of Our House, about 2 miles (air) east of Celestial Valley, about 2 1/2 miles (air) southeast of Camptonville. 975 Comment
  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
  JEPS104249  Eleocharis bolanderi Lowell Ahart 2003-7-6 10362 Yuba In meadow, e of the power line, ca 60 yd nw of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  JEPS95538  Eleocharis bolanderi Lowell Ahart 1994-6-27 7375 Yuba 4 mi NE of Strawberry Valley (center of Schwartz Meadow, E side of La Porte Road) 1219 Comment
  JEPS98335  Eleocharis bolanderi Lowell Ahart 2000-7-13 8590 Yuba 2 1/2 air miles SE of Camptonville (S side of Ridge Road, 1/4 mi W of Our House, 2 air mi E of Celestial Valley) 975 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
  CAS-BOT-BC113033  Eleocharis macrostachya Gordon H. True; John Thomas Howell 1970-5-29 5423 Yuba Artificial lake ca. 1 mi. NW of Spenceville (site) on Cox Creek. 152 Comment
  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
  CHSC78292  Eleocharis macrostachya Lowell Ahart 2000-7-13 8579 Yuba In a small meadow, on the south side of Ridge Road, about 1/4 mile west of Our House, about 2 miles (air) east of Celestial Valley, about 2 1/2 miles (air) southeast of Camptonville. 975 Comment
  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
  CAS-BOT-BC113035  Eleocharis macrostachya W. V. Middlekauff 1954-9-11 s.n. Yuba 3 miles NW of Rio Oso Post Office. Comment
  SEINET13709409  Eleocharis montevidensis Lowell William Ahart, Lowell William Ahart 2003-1 10362 Yuba 5 Air Mi. N of Dobbins, Near Fountain Hill Road (39 Deg 26'11.7"N, 121 Deg 12'07.3"W) 2746 Ft. 837 Comment
  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
  CHSC83048  Eleocharis obtusa Lowell Ahart 2002-10-9 9973 Yuba Along Lost Creek, below the high water line of Sly Creek Reservoir, about 50 yards southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CHSC116335  Eleocharis pachycarpa Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20642 Yuba On the bottom of the outflow area at the bottom of Lake Francis Dam, Lake Francis, about 1 1/2 miles south of Dobbins. 479 Comment
  CHSC73706  Eleocharis pachycarpa B. Castro; L. Gehrung 1995-9-12 600 A Yuba Fish Mdw. Ca 5 air mi NE of Strawberry Valley, and ca 1.5 mi E of Slate Ck. In meadow on unnamed stream flowing S into Canyon Ck, ca 500 ft W of USFS Rd 20N35 via unnamed dirt rd. Towards upper end of meadow. 1249 Comment
  CHSC78195  Eleocharis pachycarpa Lowell Ahart 2000-5-25 8400 Yuba On the sidesof a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  CHSC83068  Eleocharis pachycarpa Lowell Ahart 2002-10-9 9949 Yuba Area south of a spring, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS103481  Eleocharis pachycarpa Lowell Ahart 2002-10-9 9949 Yuba Area S of a spring, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CDA2609  Eleocharis pachycarpa L. Ahart 2000-6-19 8490 Yuba Along a south branch of Dry Creek, on the south side of Marysville Road, about 1/4 mile west of the intersection of Marysville Road and Frenchtown Road, west of Oregon House, about 2 miles east of Collins Lake. Comment
  SEINET3478048  Eleocharis pachycarpa Unknown 2000-6-19 8490 Yuba Collins Lake, Collins Lake, about 2 miles east, on the south side of Marysville Road, about 0.25 miles west of the intersection of Maryville Road and Frenchtown Road, west of Oregon House, along a south branch of Dry Creek 450 Comment
  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
  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
  UCR263568  Eleocharis quinqueflora Lowell Ahart 2000-6-19 8493 Yuba Sierra Nevada Mtns., about 100 yards north of New York Flat Road, about 1.25 miles (air) northeast of Brownsville, about 2.25 miles (air) west of Challenge 732 Comment
  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
  SEINET7587008 Image available Eleocharis quinqueflora Lowell 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. 1219 Comment
  CDA14187  Elodea canadensis E. Finley 1998-4-8 s.n. Yuba Sierra Nevada; Yuba Water District Canal at Blacktop Rd. 0 Comment
  UCD62803  Elymus X hansenii Beecher Crampton 1957-6-5 4151 Yuba 1/2 mile W of Oregon House Post Office. Comment
  CHSC97462  Elymus caput-medusae Lowell Ahart 2007-5-14 13859 Yuba In the center of a dirt road, 60 yards north of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville. 29 Comment
  CAS-BOT-BC227154  Elymus elymoides Lowell Ahart 1979-6-25 s.n. Yuba 2 mi e of Challenge 700 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
  JEPS104068  Elymus stebbinsii subsp. septentrionalis Lowell Ahart 2003-7-2 10341 Yuba about 200 yds S of the 4-H Camp, on W side of Oregon Hill Road, about 1/2 mi N of Marysville Road, about 2 air mi NE of Dobbins 815 Comment
  CHSC44537  Elytrigia intermedia subsp. barbulata Lowell Ahart 1979-6-25 1941 Yuba A logged over area, about 1 mile south of Challenge. 640 Comment
  CHSC69426  Epilobium brachycarpum Lowell Ahart 1997-8-30 7876 Yuba On the west side of the dirt road, in a clear cut, Peterson Ridge Road, about 3 miles (air) east of Challenge. 762 Comment
  JEPS43833  Epilobium brachycarpum L. S. Smith 1927-4-18 2017 Yuba Comptonville and w Tahoe (along road) 609 Comment
  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
  CHSC84143  Epilobium ciliatum subsp. ciliatum Lowell Ahart 2003-7-2 10349 Yuba Seep on the east side of Fountain Hill Road, about 3 miles south of Oregon Hill Road, about 1/2 mile (air) north of Fountain House Hill, about 3 miles (air) northeast of Dobbins. 841 Comment
  JEPS43829  Epilobium ciliatum subsp. ciliatum W. L. Jepson 1934-7-29 16754 Yuba Marysville Comment
  UCD80478  Epilobium ciliatum subsp. ciliatum CNPS SN Foothill Team 2005-7-5 SNNR 0467 b Yuba CDFG Daugherty Hill Wildlife Area. 278 Comment
  CHSC83069  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2002-10-9 9957 Yuba Along Lost Creek, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CHSC96843  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2007-6-30 14236 A Yuba West side of a new ditch, near and west of a new road pad, about 350 yards west of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC96979  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2007-8-7 14421 Yuba On the southwest part of Hampshire Creek Meadow, about 80 yards west of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS103440  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2002-10-9 9957 Yuba Along Lost Creek, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS113482  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2007-6-30 14236 Yuba Near and west of new road pad, about 350 yards west of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  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
  CAS-BOT-BC171857  Epilobium septentrionale Dan Campbell 1976-9-3 s.n. Yuba Just southwest of Camptonville 762 Comment
  JEPS113476  Epilobium torreyi Lowell Ahart 2007-5-12 13800 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC43345  Equisetum hyemale subsp. affine Lowell Ahart 1977-4-17 1313 Yuba Along a small branch of Dry Creek, about 1 mile south of Challenge, about 1 1/2 miles west of Pike County Peak. 548 Comment
  CAS-BOT-BC57147  Equisetum hyemale subsp. affine Lowell Ahart 1977-4-17 s.n. Yuba About 3 miles south of Challenge 700 Comment
  UCD135395  Equisetum hyemale subsp. affine Kathleen Keliher 1975-4-30 79 Yuba Ca. 200 feet from Marysville Road near Oregon Creek. 762 Comment
  SEINET10717829  Eragrostis Lowell Ahart 2007-11-13 Ahart 14599 Yuba T13N, R6E, southwest 1/4 Section 19. On the west side of Camp Far West Road, at the north edge of the town of Sheridan. 35 Comment
  UCD63095  Eragrostis curvula Beecher Crampton 1974-10-11 9093 Yuba 2 miles southeast of Brown's Valley along Hwy. 20. Comment
  HSC9780  Eragrostis mexicana subsp. virescens T. F. Newman 1965-8-22 6559 Yuba Carnes Ranch, 10 mi. N of Marysville Comment
  SEINET3015267  Eragrostis mexicana subsp. virescens L. Ahart 1997-8-13 7866 Yuba On the south side of Scott Forbes Rd, 1.4 mi E of the intersection of Scott Forbes Rd and Peoria Rd., just E of Gray Drive about 2 1/4 mi 9air) E of Browns Valley. 91 Comment
  UCD63879  Eragrostis mexicana subsp. virescens F. L. Smith 1945-10-4 Yuba Marysville, 2 miles north. Comment
  CHSC69463  Eragrostis pectinacea var. pectinacea Lowell Ahart 1997-8-13 7867 Yuba On the south side of Scott Forbes Road, 1/4 mile east of the intersection of Scott Forbes Road and Peoria Road, just east of Gray Drive, about 2 1/4 miles (air) east of Browns Valley. 91 Comment
  JEPS113512  Eremocarpus setiger Lowell Ahart 2007-5-12 13790 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  OBI5769  Ericameria arborescens Carl B. Wolf 1934-10-4 6153 Yuba Texas Hill, about 2 mi from Dobbins 457 Comment
  RSA12714  Ericameria arborescens C. B. Wolf 1934-10-4 6153 Yuba Texas Hill, 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
  CHSC116119  Erigeron canadensis Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20638 Yuba On the bottom of the spillway area at the west side and near the top of Lake Francis Dam, below the high water line of Lake Francis, about 1-1/2 miles south of Dobbins. 512 Comment
  CHSC97682  Erigeron canadensis Lowell Ahart 2007-11-1 14531 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  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
  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
  CHSC70223  Erigeron petrophilus var. sierrensis B. Castro; R. Fallscheer, R. Zebell 1989-8-7 366 Yuba Ca 2.5 air mi S of Bucks Lake, on the south flank of Red Mtn, at jcn USFS Rds 23N18, 23N15, and 23N69. Comment
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Jul 16 2007
  JEPS95030  Erigeron petrophilus var. sierrensis Lowell Ahart 1997-8-7 7809 Yuba about 3 air mi se of Challenge (on n side of the dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  CHSC96977  Erigeron philadelphicus Lowell Ahart 2007-8-7 14427 Yuba About 200 yards south of Hampshire Creek Meadow, about 30 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS100495  Erigeron reductus var. reductus Dean W. Taylor 2001-6-21 17812 Yuba canyon of the North Fork Yuba River, near the confluence of Canyon Creek at Kelly Bar Comment
  JEPS125960  Erigeron reductus var. reductus D. W. Taylor 2001-5-9 17647 Yuba Plumas National Forest; canyon of the North Fork of the Yuba River near Kelley Bar Comment
  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
  UCD119302  Eriodictyon californicum Barbara Yungert 1974-4-22 78 Yuba Along four wheel drive jeep road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  SEINET5499350  Eriodictyon californicum Unknown 1959-4-11 s.n. Yuba 5 miles E of Oroville, on US 40 alternate 244 Comment
  CAS-BOT-BC261708  Eriogonum nudum var. oblongifolium Lowell Ahart 1980-8-12 2525 Yuba Ca. 2 miles south-east of Woodleaf 800 Comment
  CHSC69429  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-8-30 7875 Yuba In the gutter on the north side of Forbestown Road, just west of Costa Creek, about 2 1/2 miles (air) southeast of Forbestown. 853 Comment
  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
  UCR196979  Eriophyllum lanatum var. achilleoides George K. Helmkamp, E. A. Helmkamp 2008-5-20 13464 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  CAS-BOT-BC301316  Eriophyllum lanatum var. croceum Barbara T. Keller 1975-6-10 1493 Yuba Challenge Experimental Forest along La Porte Road near Challenge 762 Comment
  CHSC115476  Eriophyllum lanatum var. croceum L. P. Janeway; Emily Meigs Doe 2015-5-6 11671 Yuba Northern High Sierra Nevada. Plumas National Forest; Forbestown, 510 m south-southwest of junction of Forbestown Road and Challenge-Cutoff Road. 832 Comment
  CAS-BOT-BC308243  Eriophyllum lanatum var. grandiflorum Mrs. J. E. Cramsie 1923-5-22 s.n. Yuba Smartsville Comment
  CHSC113674  Eriophyllum lanatum var. grandiflorum L. P. Janeway 2014-6-24 11416 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 480 m northeast of Marysville Road. 756 Comment
  JEPS95034  Eriophyllum lanatum var. grandiflorum Lowell Ahart 1997-8-7 7825 Yuba about 3 air mi se of Challenge (on e side of the dirt road, near an unnamed stream, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  CHSC108199  Erodium botrys Lowell Ahart 2011-6-7 17402 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCR258226  Erodium botrys George K. Helmkamp, Amy Barnes 2013-3-28 20255 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  UCD37852  Erodium cicutarium Beecher Crampton 1962-4-24 6256 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  RSA125337  Eryngium castrense P. H. Raven, Otto T. Solbrig 1959-6-15 13225 Yuba 9.4 miles south of Marysville on Highway 99 Comment
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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
  SEINET7067140  Eryngium vaseyi var. globosum A. G. Vestal 1947-4-30 s.n. Yuba About 5.1 miles west of Smartville on Route 20. Coordinate datum: NAD27. Comment
  CAS-BOT-BC54682  Erysimum capitatum Mrs. Martin Goerges 1953-6-24 s.n. Yuba Lake Vera, North Fork, Yuba River. Comment
  UCR194897  Erysimum capitatum var. capitatum George K. Helmkamp, E. A. Helmkamp 2007-5-26 12142 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, just north of the Nevada Co. line; beside Oregon Creek and Oregon Creek campground 430 Comment
  CHSC63275  Erythranthe bicolor Lowell Ahart 1994-6-5 7293 Yuba On the north side of Costa Creek, on the north side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  SEINET8264801  Erythranthe geniculata Lowell Ahart 2005-3-11 11608 Yuba west of a poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 395 Comment
  CHSC19697  Erythranthe guttata S. A. Harrison 1971-6-25 27 Yuba On n side of gravel road originating at main gate to Camp Far West recreation area 8 mi e of Wheatland. Comment
  CHSC63177  Erythranthe primuloides Lowell Ahart 1994-6-27 7397 Yuba Near the east side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  SBBG988  Erythronium multiscapideum H. and M. Dearing 1939-5-8 3295 Yuba New York Crk Comment
  SJSU8125  Erythronium multiscapideum J. B. Willis Jr. 1969-4-19 Yuba Marysville Rd 0.5 mi W of Oregon House P.O., 7.5 mi W of Dobbins Comment
  CHSC90463  Eschscholzia caespitosa Lowell Ahart 2005-3-11 11615 Yuba Large rock outcrop, south slope, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 395 Comment
  CAS-BOT-BC419483  Eschscholzia lobbii Carl B. Wolf 1937-5-12 8630 Yuba Sacramento Valley, 4 mi. NE. of Wheatland on road to Grass Valley 60 Comment
  CAS-BOT-BC419485  Eschscholzia lobbii Gordon H. True 1963-4-17 1181 Yuba About 10 miles east of Marysville on Marysville-Grass Valley Hwy. 30 Comment
  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
  RSA21286  Eschscholzia lobbii Carl B. Wolf 1937-5-12 8630 Yuba 4 miles NE of Wheatland on road to Grass Valley 61 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
  UCD169274  Euphorbia serpillifolia Lowell Ahart 2013-11-30 19299 Yuba Willow Glen Creek, northwest of Dry Creek, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  CHSC68477  Euphorbia spathulata Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7719 Yuba On the south side of a poor dirt road, about 1/2 mile east of Scott Forbes Road (Long Bar Road), south of Dry Creek, about 17 miles northeast of Marysville. 137 Comment
  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
  UCD142494  Euphorbia spathulata Barbara Yungert 1974-4-19 67 Yuba Sierra Foothill Field Station. SC-14 project area. 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
  CHSC116311  Euthamia occidentalis Lowell Ahart 2015-11-19 20670 Yuba Spillway area, at the west side and near the top of Lake Francis Dam, about 1 1/2 miles south of Dobbins. 512 Comment
  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-BC413883  Fallopia convolvulus Lowell Ahart 2007-5-14 13842 Yuba East and west of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  CAS-BOT-BC278283  Festuca californica Lowell Ahart 1979-6-25 s.n. Yuba 2 mi e of Challenge 700 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
  CHSC44567  Festuca occidentalis Lowell Ahart 1979-6-25 1938 Yuba About 1 mile south of Challenge. 640 Comment
  UCR258227  Festuca perennis George K. Helmkamp, Amy Barnes 2013-3-28 20255 A Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  RSA726543  Filago gallica L. Ahart 2007-5-12 13768 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  SBBG2920  Fragaria vesca H. and M. Dearing 1939-5-6 3288 Yuba near Brownsville Comment
  UCD113254  Fragaria vesca M. S. Taylor 1981-4-22 3554 Yuba E side of Empire Rd, ca. 0.5 mi s of its jct with Laporte Rd, ca. 1 mi sw of Woodleaf. 975 Comment
  CAS-BOT-BC53654  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba along the left bank of the Yuba River, near bridge on road from Brown's Valley to Smartsville Comment
  CAS-BOT-BC53656  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-BC53658  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-5 1443 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-BC53663  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-5 1443 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-BC53664  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1447 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-BC53666  Frangula californica subsp. tomentella Carl B. Wolf 1935-8-1 7564 Yuba along the Yuba River, near bridge on the Browns Valley - Smartsville Road, Sierra Nevada Foothills Comment
  CAS-BOT-BC53668  Frangula californica subsp. tomentella Carl B. Wolf; E. R. Johnson 1934-10-4 6155 Yuba Sierra Nevada Foothills. Texas Hill, 2 mi. W. of Dobbins 457 Comment
  CAS-BOT-BC53670  Frangula californica subsp. tomentella Lewis S. Rose 1940-5-28 40389 Yuba Browns Valley 60 Comment
  CAS-BOT-BC53671  Frangula californica subsp. tomentella Alice Eastwood 1921-5-22 10530 Yuba Los Vergeles Comment
  CHSC108173  Frangula californica subsp. tomentella L. P. Janeway 2011-8-15 10652 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 1.9 air km south-southwest of Oregon Peak, 0.3 km north of Marysville Road. Southwest edge of meadow area, where seasonal drainage occurs and in sheetlfow parts of the meadow. 750 Comment
  JEPS124103  Frangula californica subsp. tomentella Lowell Ahart, Susan Kephart, Jim Kephart 2015-6-4 20197 Yuba About 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. Comment
  OBI6059  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba Browns Valley to Smartsville rd, along left bank of Yuba river, near bridge 152 Comment
  SBBG27475  Frangula californica subsp. tomentella C. B. Wolf, E. R. Johnson 1934-10-4 6155 Yuba Texas Hill, 2 mi W of Dobbins 457 Comment
  SBBG27500  Frangula californica subsp. tomentella C. B. Wolf 1927-11-5 1444 Yuba Browns Valley to Smartsville Rd, along left bank of Yuba River, near bridge 152 Comment
  SD22794  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-5 1444 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  UCD112791  Frangula californica subsp. tomentella W. R. Powell 1968-5-24 1547 a Yuba at C. D. F. fire station in Brownsville. 649 Comment
  UCD112801  Frangula californica subsp. tomentella Collector unknown 1925-5-17 1783 Yuba Marysville Buttes. Comment
  UCD112806  Frangula californica subsp. tomentella Barbara Yungert 1974-5-8 131 Yuba north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  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
  CHSC107295  Frangula rubra subsp. obtusissima L. P. Janeway 2011-8-10 10638 Yuba Northern High Sierra Nevada. Plumas National Forest; serpentine slope on southeast side of Road 19N04 1.3 km north of Challenge-La Porte Road; 2.2 air km northeast of Challenge. 1023 Comment
  CHSC112863  Frangula rubra subsp. obtusissima L. P. Janeway 2014-4-24 11234 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  CHSC113643  Frangula rubra subsp. obtusissima L. P. Janeway 2014-5-12 11252 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  CHSC46513  Frangula rubra subsp. obtusissima Lowell Ahart 1976-5-6 1094 Yuba Along the edge of Ponderosa Way, near the Brownville Dump, south-west of Brownsville. 487 Comment
  SBBG50631  Frangula rubra subsp. obtusissima D. Youngberg 1968-5-5 1017 Yuba ca. 1 mi S of Camptonville on St Hwy 49 Comment
  UCD113145  Frangula rubra subsp. obtusissima W. R. Powell 1971-5-24 1547 Yuba at C.D.F. fire station, Brownsville. 649 Comment
  CAS-BOT-BC55739  Frangula rubra subsp. rubra Lowell Ahart 1976-5-6 s.n. Yuba Near the Brownsville Dump, Brownsville 457 Comment
  SBBG83673  Fraxinus latifolia R. Ernenwein 1975-5-10 19 Yuba Dry Crk 300-400 yards S of 4th locked gate on Rd 4, 0.5 mi N of Univ of California Sierra Foothill Range Field Station boundary Comment
  UC1123378  Fraxinus latifolia M. A. Elvin 1933-6-23 30 Yuba 1 mi w Hansonville; Smartsville Quad. 426 Comment
  CAS-BOT-BC205976  Fremontodendron californicum Wayne Roderick 1981-5-24 s.n. Yuba Near Dobbins Comment
  UCD73922  Fremontodendron californicum G. Ledyard Stebbins 1966-5-22 6417 Yuba Dobbins Dump. Comment
  CAS-BOT-BC205978  Fremontodendron decumbens G. L. Stebbins 1966-5-22 6417 Yuba Near Dobbins, beside city dump 524 Comment
  CHSC100728  Fritillaria eastwoodiae L. P. Janeway 2008-5-11 9359 Yuba Northern High Sierra Nevada. About 0.8 km north-northeast of Challenge; Golden Gate Ravine side of the ridge between that and Jordan Creek; west side of Road 19N04 1.1 km north-northwet of Challenge-La Porte Road. 1012 Comment
  CAS-BOT-BC506163  Fritillaria micrantha Jokerst; Ahart 1984-3-20 JDJ 1946 Yuba East side of Ponderosa Road 0.3 mile south of its junction with Robinson Mill Road Comment
  HSC72942  Fritillaria micrantha M. S. Taylor 1981-4-15 3539 Yuba Brownsville along La Potre-Quincy Rd. near its junction with Rackerby Rd. Comment
  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
  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
  CHSC10803  Fritillaria recurva Lowell Ahart 1964-5-3 Yuba near Bullard's Bar Dam. 609 Comment
  JEPS18153  Fritillaria recurva Rimo Bacigalupi with G. T. Robbins and F. Chisaki 1956-4-19 5623 Yuba 5.5 mi sw of Bullard Bar Dam (3.1 mi e of Dobbins, watershed of North Fork of Yuba River, between Dobbins and Bullard Bar Dam) 838 Comment
  UCD139681  Fritillaria recurva Kathleen Keliher 1975-5-15 111 Yuba 10 yards above roadside of Peterson Ridge Road, 1 mile from Oregon House Road. 762 Comment
  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
  CHSC97200  Galium mollugo Lowell Ahart 2007-8-7 14426 Yuba Small open flat, about 200 yards south of Hampshire Creek Meadow, about 30 yards est of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  CHSC47478  Galium parisiense Lowell Ahart 1981-6-13 2845 Yuba Along the new gravel road, on the north-east side of McGinn Hill, east of Loma Rica. 304 Comment
  UCD37843  Galium parisiense Beecher Crampton 1962-4-24 6240 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  SBBG121515  Galium sparsiflorum L. Ahart, L. Janeway, L. Hanson 2007-9-18 14499 Yuba Hampshire Crk Meadow, ca. 20 yards E of dirt rd, ca. 1 mi E of Clipper Mills 1015 Comment
  CHSC97458  Galium sparsiflorum subsp. glabrius Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-9-18 14499 Yuba Open meadow, about 20 yards east of the dirt road, Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills. 1015 Comment
  JEPS115066  Galium sparsiflorum subsp. glabrius Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14499 Yuba Open meadow, about 20 yards east of the dirt road, Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills 1015 Comment
  RSA726440  Galium sparsiflorum subsp. glabrius L. Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14499 Yuba About 1 mile (air) east of Clipper Mills. 1016 Comment
  CDA14573  Galium trifidum G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3053 Yuba La Porte _ Quincy Road 3.6 miles northeast of Strawberry Valley at the Plumas county line. 1280 Comment
  UCD82293  Galium trifidum subsp. subbiflorum Robin McMaster 1973-6-24 504 Yuba Oregon Creek Campground. 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
  UCD66544  Gastridium phleoides Beecher Crampton 1957-6-5 4120 Yuba 10 miles E of Marysville. Along State Hwy. 20. Comment
  CAS-BOT-BC278716  Gastridium ventricosum Lowell Ahart 1980-6-19 2396 Yuba 3 miles south-east of Challenge 800 Comment
  SEINET10553569  Gastridium ventricosum Lowell Ahart 2003-6-29 Ahart 10319 Yuba T19N R6E S27 SW1/4. Small size plants, on dry to damp red soil, along a small wet wash, on the east side of Ponderosa Way, about 1.5 miles north of La Porte Road, about 1 mile (air) west of Brownsville. Common. Foothill Woodland. 702 Comment
  UCD105750  Genista monspessulana Barbara Yungert 1974-6-5 193 Yuba Picnic area, north of Yuba River, Sierra National Foothill Field Station. Comment
  CHSC108310  Geranium dissectum Lowell Ahart 2011-6-7 17403 Yuba West of a willow shurb, just south of the huge gravel bar, along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCD37890  Geranium dissectum Beecher Crampton 1962-4-24 6316 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCR231325  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 2011-5-6 17203 Yuba East edge of Sacramento Valley, junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg. ) of Wheatland 56 Comment
  UCD103353  Geranium dissectum Kathleen Keliher 1975-5-15 106 Yuba Along Marysville Road, 1.5 miles east of Dobbins. 502 Comment
  UCD103396  Geranium dissectum Barbara Yungert 1974-4-25 80 Yuba Sierra Foothill Field Station. Near Four Wheel Drive Road, SC-14 project area. Comment
  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
  UCD37891  Geranium molle Beecher Crampton 1962-4-24 6317 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  SEINET12335244  Gilia capitata F. H. Utech 1990-1 90 -862 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  UCR195173  Gilia capitata subsp. pedemontana George K. Helmkamp, E. A. Helmkamp 2007-5-26 12144 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, just north of the Nevada Co. line; beside Oregon Creek and Oregon Creek campground 430 Comment
  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
  CHSC81799  Glinus lotoides Lowell Ahart 2001-11-2 9401 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  CHSC97745  Glinus lotoides Lowell Ahart 2007-11-8 14582 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  RSA727528  Glinus lotoides L. Ahart 2007-11-8 14582 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 74 Comment
  CAS-BOT-BC283886  Glyceria declinata Lowell Ahart 2007-5-12 13824 Yuba W of the culvert, about 20 yards NW of the power tower, about 50 yards N of Fruitland Road, about 13 miles (air) NE of Marysville 35 Comment
  UCD66768  Glyceria declinata John F. Williams 1984-3-1 Yuba Yuba County. Comment
  CAS-BOT-BC280560  Glyceria elata Lowell Ahart 1979-6-25 s.n. Yuba 1 mi s of Challenge 700 Comment
  UCD66834  Glyceria elata Beecher Crampton 1966-6-14 7748 Yuba 1 mile east of Brownsville. 731 Comment
  SEINET10792317  Glyceria elata Lowell Ahart 1979-6-25 Ahart s.n. Yuba 1 mi S of Challenge. Yellow Pine Forest. Growing in shallow water near a small stream. 700 Comment
  SEINET10662642  Glyceria occidentalis Lowell Ahart 1999-9-17 Ahart 8248 Yuba T16N, R4E, Section not surveyed. 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
  CAS-BOT-BC303822  Gnaphalium John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54073 Yuba 1.4 miles SW of Bullards Bar Dam on road to Challenge 609 Comment
  RSA795344  Gnaphalium luteoalbum L. Ahart 2011-6-7 17376 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 air miles northeast of Marysville. 66 Comment
  UCR189429  Gnaphalium luteoalbum George K. Helmkamp, E. A. Helmkamp 2007-8-29 12833 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 Comment
  UCD135096  Gnaphalium luteoalbum Barbara Yungert 1974-5-9 145 Yuba south of road, SC-14 project area, Sierra Foothill Field Station. Comment
  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
  JEPS121300  Gnaphalium palustre Lowell Ahart 2013-11-30 19316 Yuba On the SE side of Dry Creek, about 30 yards SE of Willow Glen Creek, below the high water line of Collins Lake, about 30 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  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
  UC1745629  Gratiola ebracteata Annetta M. Carter 1940-4-21 1527 Yuba 4.3 mi. SE of Marysville (on road to Spenceville); ; 4.3 mi. SE of Marysville on road to Spenceville. Comment
  CAS-BOT-BC314671  Grindelia hirsutula Lewis S. Rose 1971-6-10 71071 Yuba Yuba River, Parks Bar W of Smartville 60 Comment
  CAS-BOT-BC314672  Grindelia hirsutula John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54072 Yuba 1.4 miles southwest of Bullards Bar Dam, on road to Challenge 609 Comment
  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
  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
  HSC100770  Hainardia cylindrica Lowell Ahart 2007-5-12 13825 Yuba 13 (air) mi. NE of Marysville, ~400 yd. N of Fruitland Rd., ~50 yd. N of second power tower and ~30 ft. E of culvert and 28 Comment
  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
  CHSC96495  Hedypnois cretica Lowell Ahart 2007-4-17 13680 Yuba Along a poor dirt road, west of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  UCD33243  Hedypnois cretica Beecher Crampton 1967-5-17 7943 Yuba 5 miles east of Brown's Valley, sierra foothill range field station. Comment
  CAS-BOT-BC306333  Hedypnois cretica Carl B. Wolf 1937-5-13 8631 Yuba Sierra Nevada Foothills, 2 mi. above Browns Valley on road to Stanfield Hill 121 Comment
  CAS-BOT-BC306335  Hedypnois cretica Gordon H. True 1963-4-17 1165 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Hwy. 30 Comment
  UCD132675  Hedypnois cretica Barbara Yungert 1974-4-19 69 Yuba intersection of Loop and Road 4, K1-11 Project area, Sierra Foothill Field Station. Comment
  JEPS113095  Hedypnois rhagadioloides Lowell Ahart 2007-4-17 13680 Yuba Along a poor dirt road, west of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  CHSC116114  Helenium puberulum Lowell Ahart 2015-11-18 20660 Yuba Marsh like area on the west side of the Feather River, about 1/2 mile south of Palm Avenue, about 1-1/2 miles southeast of the intersection of Palm Avenue and Larkin Raod, about 5 miles (air) northeast of Gridley. 26 Comment
  JEPS34865  Helianthus bolanderi R. F. Hoover 1936-7-31 1589 Yuba Wheatland Comment
  CAS-BOT-BC309976  Hemizonia congesta subsp. luzulifolia C. B. Wolf; B. D. Stark 1933-9-25 5504 Yuba Marysville Airport, 2 mi. N. of Marysville, Sacramento Valley 22 Comment
  UC718034  Hemizonia congesta subsp. luzulifolia C. B. Wolf, and B. D. Stark 1933-9-25 Yuba 2 mi n Marysville (Marysville Airport); Sacramento Valley 15 Comment
  CAS-BOT-BC309978  Hemizonia congesta subsp. luzulifolia J. Clausen 1932-9-16 656 Yuba 5.4 miles southeast of Marysville on the road to Wheatland Comment
  CAS-BOT-BC309979  Hemizonia congesta subsp. luzulifolia J. Clausen 1932-9-16 656 Yuba 5.4 miles southeast of Marysville on the road to Wheatland Comment
  SEINET7072980  Hemizonia fitchii A. G. Vestal 1963-5-29 s.n. Yuba Beale Road (Route 20) & Route 99 at Yuba City northwest of Wheatland. UTM Zone 10, 618094mE, 4333199mN. Coordinate datum: NAD27). Comment
  RSA7607  Hemizonia luzulifolia subsp. rudis C. B. Wolf, B. D. Stark 1933-09 5504 Yuba Marysville airport, 2 miles N of Marysville; Sacramento Valley. 15 Comment
  LA6491  Hesperocyparis macnabiana Carl Epling; June 1938 sn Yuba near Brownsville Comment
  SBBG117339  Hesperocyparis macnabiana B. Crampton 1972-2-14 8769 Yuba ca. 1.5 mi NNE of Oregon House Comment
  SD40672  Hesperocyparis macnabiana Carl B. Wolf, E. R. Johnson 1934-10-4 Yuba Sierra Nevada Foothills, north side of Indiana Creek, 1.7 mile west of Indiana Ranch 550 Comment
  CHSC47433  Hesperolinon micranthum Lowell Ahart 1976-5-27 1132 Yuba Along Ponderosa Way, near the Brownsville Dump, south-west of Brownsville. 548 Comment
  CHSC76315  Heteranthera limosa Lowell Ahart 1999-9-17 8240 Yuba In a rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  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
  JEPS94515  Heteromeles arbutifolia Lowell Ahart 1997-8-7 7823 Yuba about 3 air mi se of Challenge (on w side of dirt road near an unnamed stream, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  UC726312  Heterotheca grandiflora A. A. Heller 1924-10-25 13833 Yuba Wheatland 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
  CHSC115907  Hoita orbicularis L. P. Janeway 2015-6-29 11786 Yuba Northern High Sierra Nevada. Plumas National Forest; Weiss Hill Meadow, a large meadow 600 air-km east-southeast of junction of Weiss Hill Road and Forbestown Road; at the head of a minor northwestern tributary to New York Creek. 853 Comment
  SEINET3449379  Hoita orbicularis Unknown 2003-7-6 10354 Yuba Dobbins, Dobbins, about 5 air miles north, east of the power line, about 50 yards west of Fountain Hill Road 830 Comment
  CAS-BOT-BC280821  Holcus lanatus Lowell Ahart 1979-6-25 s.n. Yuba About one mile south of Challenge 700 Comment
  CHSC110333  Holcus lanatus L. P. Janeway 2013-6-7 11135 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
  CHSC97229  Holcus lanatus Lowell Ahart 2007-6-22 14220 Yuba Near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113805  Holcus lanatus Lowell Ahart 2007-6-22 14220 Yuba Near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS95537  Holcus lanatus Lowell Ahart 1994-6-27 7393 Yuba 4 mi NE of Strawberry Valley (along the N side of a small stream, E of Schwartz Meadow, on the E side of La Porte Road) 1219 Comment
  SEINET4585087  Holcus lanatus A. Tiehm 1975-1 641 Yuba U.C. Sierra Foothill Field Station 198 Comment
  UCR189428  Holcus mollis George K. Helmkamp, E. A. Helmkamp 2007-8-29 12834 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 Comment
  CHSC78123  Holozonia filipes Lowell Ahart 2000-6-11 8463 Yuba On the bottom of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville road, about 2 miles north of the intersection of Waldo Road and Smartville road, about 6 miles (air) south of Smartville. 146 Comment
  HSC5852  Holozonia filipes L. S. Rose 1969-6-26 69060 Yuba 5 mi. S of Smartville, Camp Beale Rd. 183 Comment
  JEPS59966  Holozonia filipes Lewis S. Rose 1969-6-26 69060 Yuba 5 mi s Smartville (Camp Beale Road) 182 Comment
  JEPS98568  Holozonia filipes Lowell Ahart 2000-6-11 8463 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
  CAS-BOT-BC311749  Holozonia filipes J. T. Howell; Gordon H. True 1969-6-24 5091 Yuba Vineyard Creek ca. 4 miles south of Smartville on Beale AFB Rd. 152 Comment
  JEPS113402  Hordeum marinum subsp. gussoneanum Lowell Ahart 2007-5-14 13860 Yuba Bottom of a large vernal pool, about 30 yards east of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville 29 Comment
  JEPS118309  Hordeum marinum subsp. gussoneanum Lowell Ahart 2011-6-7 17424 Yuba East of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  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
  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
  CAS-BOT-BC536174  Horkelia californica var. elata Alice Eastwood 1921-5-22 10545 Yuba Los Vergils Comment
  UCD113558  Horkelia tridentata Kathleen Keliher 1975-5-6 93 Yuba 300 meters off La Porte Road, 2 miles from Forbestown Road. 914 Comment
  CHSC63249  Hosackia pinnata Lowell Ahart 1994-6-5 7305 Yuba On the bottom and sides of Costa Creek, on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  UCD35870  Hosackia pinnata Beecher Crampton 1965-6-17 7368 Yuba ca. 0.75 mile north of Stanfield Hill, Willow Glen Creek. Comment
  CDA14417  Hydrilla verticillata G. D. Barbe, Lew Davis, Jack Gianelli 1977-1-19 2236 Yuba SE corner of Lake Ellis, 9th and B streets, Marysville. 0 Comment
  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
  UCR15195  Hydrilla verticillata Keith Miller 1976-11-24 s.n. Yuba Marysville, Ellis Lake Comment
  CDA1454  Hydrilla verticillata G. D. Barbe, T. C. Fuller 1976-11-3 2235 Yuba 9th and B Streets, Marysville. Southeast edge of freshwater Ellis Lake 0 Comment
  CDA37683  Hydrilla verticillata Breckenridge/O Connell 2004-5-17 s.n. Yuba Near Oregon House. 0 Comment
  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
  CHSC113190  Hydrocotyle umbellata Lowell Ahart 2013-11-30 19309 Yuba On north side of Dry Creek, below the high water line of Collins Lake, about 300 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 354 Comment
  JEPS121312  Hydrocotyle umbellata Lowell Ahart 2013-11-30 19309 Yuba On the N side of Dry Creek, below the high water line of Collins Lake, about 300 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  RSA0037021  Hydrocotyle umbellata Lowell A. Ahart 2013-11-30 19309 Yuba On the north side of Dry Creek, below the high water line of Collins Lake, about 300 yards north of Marysville Road, about 2 1/2 miles west of Oregon house. 354 Comment
  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
  JEPS98496  Hypericum anagalloides Lowell Ahart 2000-6-11 8462 Yuba 6 mi (air) S of Smartville (sides of a deep wash, a N branch of Dry Creek, 2 mi N of int. of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  SEINET3450954  Hypericum anagalloides Unknown 2003-7-6 10350 Yuba Dobbins, Dobbins, about 5 air miles north, east of the power line, about 50 yards west of Fountain Hill Road 830 Comment
  CHSC43307  Hypericum concinnum Lowell Ahart 1975-6-25 811 Yuba Near the dump south of Brownsville, along Ponderosa Way. 609 Comment
  UC1122103  Hypericum concinnum M. A. Elvin 1933-6-7 25 Yuba 4 mi. s.w. McCourtney Crossing; Smartsville Quad. Comment
  CDA36536  Hypericum concinnum Crane 42197 Yuba Marysville 0 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-BC312913  Hypochaeris glabra Gordon H. True 1963-4-17 1167 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Hwy. 30 Comment
  CAS-BOT-BC312914  Hypochaeris glabra Gordon H. True 1963-4-17 1173 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Hwy. 30 Comment
  JEPS113576  Hypochaeris radicata Lowell Ahart 2007-8-7 14411 Yuba Hampshire Creek Meadow, about 30 yards east of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  CAS-BOT-BC133614  Iris hartwegii Barbara T. Keller 1975-6-10 1508 Yuba Challenge Experimental Forest along La Porte Road near Challenge 762 Comment
  CAS-BOT-BC133615  Iris hartwegii Peter H. Raven 1953-5-9 5471 Yuba 1 mile from Brownsville on road to Challenge Comment
  SJSU9895  Iris tenuissima J. B. Willis Jr. 1969-4-19 42 Yuba Marysville Rd, 1 mi W of Dobbins Comment
  CHSC46181  Isoetes nuttallii Lowell Ahart 1981-3-24 2707 Yuba About 6 miles east of Wheatland. 45 Comment
  CHSC63106  Isoetes nuttallii Lowell Ahart 1994-6-27 7372 Yuba About the center of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 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-BC69899  Isoetes nuttallii Alice Eastwood 1921-5-22 10527 Yuba Los Vergils. 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
  CHSC45187  Isolepis setacea Lowell Ahart 1980-6-19 2394 Yuba In small seep along the edge of a dirt road, about 3 air miles south-east of Challenge. 731 Comment
  CHSC84465  Isolepis setacea Lowell Ahart 2003-7-6 10363 Yuba In meadow, east of the power line, about 60 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  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
  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
  SBBG121206  Jensia rammii L. Ahart 2007-5-12 13772 Yuba ca. 300 yards N of Fruitland Rd, ca. 13 mi NE of Marysville Comment
  UCD169278  Jensia rammii Lowell Ahart 2007-5-12 13772 Yuba About 13 miles (air) northeast of Marysville. About 300 yards north of Fruitland Road, about 100 yards southwest of the second power tower. 28 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
  CHSC96986  Juncus acuminatus Lowell Ahart 2007-8-7 14412 Yuba Hampshire Creek Meadow, about 5 yards west of the dirt road, about 1 mile (air) east of Clipper Mills. On the east side of a small pond, on the west side of the dirt road. 1021 Comment
  JEPS113874  Juncus acuminatus Lowell Ahart 2007-6-22 14215 Yuba Sides of a new ditch, near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  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
  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
  JEPS104264  Juncus articulatus Lowell Ahart 2003-7-2 10345 Yuba In a small stream, on the w side of Fountain Hill Rd, ca 3 mi south of Oregon Hill Rd, ca 1/2 mi (air) n of Fountain House Hill, ca 3 mi (air) ne of Dobbins. 841 Comment
  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
  JEPS124265  Juncus balticus subsp. ater Lowell Ahart 2015-11-19 20674 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CHSC97233  Juncus bufonius var. bufonius Lowell Ahart 2007-6-22 14216 Yuba Sides of a new ditch, near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  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
  CHSC78330  Juncus bufonius var. occidentalis Lowell Ahart 2000-6-23 8503 Yuba About 100 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  UCD147081  Juncus bufonius var. occidentalis Chuck Hughes 2013-5-2 366 Yuba Northwest margin of Camp Far West Reservoir. 97 Comment
  UCD80380  Juncus capitatus CNPS SN Foothill Team 2005-3-17 SNFN 0019 b Yuba CDFG Spenceville Wildlife Area. From CA Highway 20 east, right on Smartville Road to Spenceville Wildlife Area, CDFG. Plot is accessible from 1st Fish and Game gate on E side of Spenceville Road, Horsetrail (N/S). Location is ca. 2/3 mile along horse trail, then SW between trail and Smartville Road. 195 Comment
  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
  UCD33114  Juncus covillei Beecher Crampton 1966-6-14 7759 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  CHSC105965  Juncus cyperoides Lowell Ahart 2010-9-9 17141 Yuba In a small meadow, about 50 yards east of the dirt road (road now destroyed), east part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills. 1015 Comment
  CHSC97457  Juncus cyperoides Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-9-18 14496 Yuba Along a small stream, about 100 yards northwest of the dirt road, north part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills. 1015 Comment
  CHSC97460  Juncus cyperoides Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-9-18 14498 Yuba In a small meadow, about 50 yards northwest of the dirt road, north part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills. 1015 Comment
  JEPS115058  Juncus cyperoides Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14496 Yuba Along a small stream, about 100 yards northwest of the dirt road, north part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills 1015 Comment
  UCR259341  Juncus cyperoides Glenn L. Clifton 2001-8-20 37290 Yuba Hampshire Creek 1027 Comment
  CHSC96874  Juncus dubius Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-13 14302 Yuba About 30 yards east of a poor dirt road, about 1 1/2 miles (air) northeast of Clipper Mills. 1045 Comment
  JEPS113873  Juncus dubius Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14302 Yuba About 30 yards east of a poor dirt road, about 1 1/2 miles (air) northeast of Clipper Mills 1045 Comment
  SEINET3450944  Juncus dubius Unknown 2003-7-2 10346 Yuba Dobbins, Dobbins, about 3 air miles northeast, about 0.5 miles north of Fountain Hill Road, about 3 miles south of Oregon Hill Road, west side of Fountain Hill road 840 Comment
  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
  JEPS113789  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
  CHSC96879  Juncus effusus subsp. pacificus Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-13 14300 Yuba About 30 yards east of a poor dirt road, about 1 1/2 miles (air) northeast of Clipper Mills. 1045 Comment
  CHSC96980  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
  JEPS113769  Juncus effusus subsp. pacificus Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14301 Yuba About 30 yards east of a poor dirt road, about 1 1/2 miles (air) northeast of Clipper Mills 1045 Comment
  CDA39199  Juncus effusus var. exiguus L. Ahart 2002-10-8 9947 Yuba On the edge of a small pond, about 100 yards north of Long Ravine Road, about 300 yards southeast of the intersection of Camp Far West Road and Long Ravine Road there is a poor gate on the north side of the road, north of Camp Far West Reservoir. Comment
  CHSC47551  Juncus ensifolius Lowell Ahart 1969-7-15 30 Yuba About 10 miles south of La Porte. 914 Comment
  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
  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
  CHSC47548  Juncus exiguus Lowell Ahart 1981-6-13 2857 Yuba On the bottom of a small stream, about 1/2 mile west of McGinn Hill, east of Loma Rica. 274 Comment
  CHSC30018  Juncus hemiendytus var. hemiendytus L. Ahart 1980-5-25 2352 Yuba Along the edge of the road, along New York Flat Rd, near the Cemetary, near Brownsville. 800 Comment
  CHSC84239  Juncus howellii Lowell Ahart 2003-7-6 10364 Yuba In a meadow, east of the power line, about 60 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  JEPS113845  Juncus laccatus Lowell Ahart 2007-8-7 14414 Yuba On the east side of a small pond, on the west side of the dirt road, Hampshire Creek Meadow, about 5 yards west of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  CHSC84399  Juncus occidentalis Lowell Ahart 2003-7-6 10365 Yuba Near a meadow, east of the power line, about 30 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  JEPS104245  Juncus occidentalis Lowell Ahart 2003-7-6 10365 Yuba Near a meadow, e of the power line, ca 30 yd w of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  UCD81507  Juncus occidentalis Christopher Michael Bronny 2009-4-1 18 Yuba Oat Hills' area of Sierra Nevada foothills. 114 Comment
  UCR118927  Juncus occidentalis Beecher Crampton 1957-6-5 4158 Yuba Central Sierra Nevada foothills., 1.3 Miles east of Oregon House Store 457 Comment
  CHSC63198  Juncus orthophyllus Lowell Ahart 1994-6-27 7378 Yuba Near the northeast side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles northeast of Strawberry Valley. 1219 Comment
  CHSC78331  Juncus orthophyllus Lowell Ahart 2000-6-23 8504 A Yuba Bog in a small meadow, about 200 yards east of the meadow along La Porte Road, about 50 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  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
  JEPS124412  Juncus orthophyllus Lowell Ahart 2015-6-16 20245 Yuba About 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. Comment
  CHSC97323  Juncus oxymeris Stephanie Chen 2007-7-17 Yuba Northern Sierra Nevada Foothills. Lower slope on west side of Browns Valley Ridge, about 1/2 mile east of Loma Rica Road and about 3 1/4 miles southwest of Loma Rica. 59 Comment
  JEPS113903  Juncus oxymeris Stephanie Chen 2007-7-17 Yuba Northern Sierra Nevada Foothills; Lower slope on W side of Browns Valley Ridge, about 1/2 mi E of Loma Rica Road and about 3 1/4 mi SW of Loma Rica. 59 Comment
  CHSC106634  Juncus tenuis Peter F. Zika 2010-6-22 24977 Yuba Northern Sierra Nevada Foothills (n SNF); Spring Valley Road NE of Browns Valley Ridge. 90 Comment
  CHSC83032  Juncus tenuis Lowell Ahart 2002-10-9 9951 Yuba Area east of a spring, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CHSC96982  Juncus tenuis Lowell Ahart 2007-8-7 14428 Yuba South of Hampshire Creek Meadow, graded edges of the dirt road, about 1 mile (air) east of Clipper Mills. On the east side of a small pond, on the west side of the dirt road. 1021 Comment
  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
  RSA726438  Juncus tenuis L. Ahart 2007-11-1 14539 Yuba About 1 mile northwest of Old Camptonville Road, about 1.5 miles (air) west of Camptonville. 627 Comment
  RSA727522  Juncus tenuis L. Ahart 2007-8-7 14428 Yuba About 1 mile (air) east of Clipper Mills. 1021 Comment
  RSA769176  Juncus tenuis P. F. Zika 2010-6-22 24977 Yuba Spring Valley Road northeast of Browns Valley Ridge, northern Sierra Nevada Foothills 90 Comment
  SEINET3450946  Juncus tenuis Unknown 2003-7-6 10365 Yuba Dobbins, Dobbins, about 5 air miles north, east of the power line, about 30 yards west of Fountain Hill Road 830 Comment
  CHSC97138  Juncus usitatus Lowell Ahart 2007-6-30 14234 Yuba Near and west of new road pad, about 350 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS103250  Juncus usitatus Lowell Ahart 2002-10-8 9947 Yuba N of Camp Far West Reservoir (300 yd SE of intersection of Camp Far West Road and Long Ravine Rd) 121 Comment
  NY790334  Keckiella lemmonii L. Ahart 1980-7-25 2484 Yuba Near Slate Creek. 1200 Comment
  CAS-BOT-BC180848  Kochia scoparia Lemmel Jr. Osborne 1948-9-5 s.n. Yuba Near Marysville Comment
  CAS-BOT-BC340441  Lactuca saligna J. T. Howell; Gordon H. True 1969-6-24 5094 Yuba Vineyard Creek ca. 4 miles south of Smartville on Beale AFB Rd. 152 Comment
  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
  CHSC112370  Lactuca virosa L. P. Janeway 2014-6-25 11420 Yuba Northern High Sierra Nevada. Plumas National Forest; Along Oregon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km northwest of Summit Hill; slope above Burnt Bridge Creek. 792 Comment
  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
  JEPS121797  Lactuca virosa L. P. Janeway 2014-6-25 11420 Yuba Northern High Sierra Nevada. Plumas National Forest; Along Oregon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km northwest of summit Hill; slope above Burnt Bridge Creek. Comment
  JEPS121799  Lactuca virosa L. P. Janeway 2014-6-25 11420 Yuba Northern High Sierra Nevada. Plumas National Forest; Along Oregon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km northwest of summit Hill; slope above Burnt Bridge Creek. Comment
  CAS-BOT-BC341288  Lagophylla glandulosa John Thomas Howell; Gordon H. True 1969-6-24 5090 Yuba Vineyard Creek, about 4 miles south of Smartville, on the Beale AFB Road 152 Comment
  CAS-BOT-BC341289  Lagophylla glandulosa Alice Eastwood 1921-5-22 10533 Yuba Los Vergils Comment
  UCD133618  Lagophylla glandulosa Barbara Yungert 1974-5-23 175 Yuba Along fence of F 1-14 and F 1-13 project areas, east of Forbes Hill, Sierra Foothill Field Station. Comment
  CHSC59506  Lasthenia californica H. E. Mac Lennan 1992-4-5 6 Yuba 19 air miles se of Oroville. 518 Comment
  CAS-BOT-BC337963  Lasthenia californica Irene Creps 1955-4-9 18 Yuba Five miles Northeast of Wheatland Comment
  UCD133692  Lasthenia californica subsp. californica Barbara Yungert 1974-4-16 55 Yuba southern slope; along road 6, K 1-11 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC352767  Lasthenia fremontii Gordon H. True 1963-4-17 1179 Yuba About 10 miles E of Marysville, on Marysville-Grass Valley Hwy 30 Comment
  CHSC97671  Lasthenia fremontii Lowell Ahart 2007-5-12 13771 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113621  Lasthenia fremontii Lowell Ahart 2007-5-12 13771 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UC665557  Lasthenia fremontii Annetta Carter 1940-4-21 1528 Yuba 4.3 mi se Marysville (on road to Spenceville); Sacramento Valley 30 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
  SBBG28004  Lasthenia fremontii A. Carter 1940-4-21 1528 Yuba 4.3 mi SE of Maryville rd to Spenceville 30 Comment
  SEINET7042616  Lasthenia fremontii A. G. Vestal 1963-5-7 s.n. Yuba Ca 3.5 miles north of Wheatland. Wheatland quadrangle UTM Zone 10, 636544mE, 4323933mN. Comment
  UCR47660  Lasthenia glaberrima C. B. Wolf 1937-5-18 08735 Yuba SacramenoValley, 2 mi south of Marysville 18 Comment
  CHSC112856  Lathyrus brownii L. P. Janeway 2014-4-22 11230 Yuba Northern High Sierra Nevada. Plumas National Forest; in shallow bowl at head of Little Oregon Creek; 0.5 km southwest of Oregon Hill Road; 3.4 air-km south-southeast of Challenge. 823 Comment
  JEPS121743  Lathyrus brownii L. P. Janeway 2014-4-22 11230 Yuba Northern High Sierra Nevada. Plumas National Forest; in shallow bowl at head of Little Oregon Creek; 0.5 km southwest of Oregon Hill Road; 3.5 air-km south-southeast of Challenge. Comment
  CDA4179  Lathyrus hirsutus L. Ahart 2000-5-25 8394 Yuba Near a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. Comment
  UCD106387  Lathyrus nevadensis Kathleen Keliher 1975-5-15 112 Yuba Along Peterson Road, 1 mile from Oregon House Road. Comment
  CAS-BOT-BC213280  Lathyrus sulphureus Barbara T. Keller 1975-6-10 1501 Yuba Challenge Experimental Forest, along la Porte road near Challenge 762 Comment
  CAS-BOT-BC213281  Lathyrus sulphureus Lowell Ahart 1980-6-19 2397 Yuba 3 miles south-east of Challenge, Sierra Nevada 800 Comment
  CAS-BOT-BC213282  Lathyrus sulphureus Lowell Ahart 1979-6-3 s.n. Yuba 1 mi S of Challenge 700 Comment
  SEINET956200  Lathyrus sulphureus Carl B. Wolf 1937-1 8636 Yuba Sierra nevada foothills, 2 7/10 mi. Below Stanfield Hill on Road to Browns Valley. 183 Comment
  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-BC321710  Layia fremontii Gordon H. True 1966-4-7 2679 Yuba About 5 miles E of Wheatland and 1 mile N of Bear River. 54 Comment
  CAS-BOT-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
  SJSU11676  Layia fremontii J. B. Willis Jr. 1969-4-19 Yuba 7 mi E of Marysville on Hammonton-Smartville Rd 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
  UCD103532  Legenere limosa Ellen Tatum Pimentel 2010-5-13 s.n. Yuba On Beale Air Force Base, north of North Beale Road (~0.9 mile as the crow flies) and west of Reed's Creek, in what appears to be an old ox-bow of Reed's Creek. CNDDB occurrence #51. 24 Comment
  CAS-BOT-BC534940  Lemna minuta Lowell Ahart 1981-6-13 2858 Yuba Near McGinn Hill, Loma Rica. Sierra Nevada, California. 300 Comment
  JEPS121301  Leontodon saxatilis Lowell Ahart 2013-11-30 19304 Yuba On the SW side of a deep wash (Willow Glen Creek), NW of Dry Creek, below the high water line of Collins Lake, about 100 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  CHSC107127  Leontodon saxatilis subsp. longirostris L. P. Janeway 2011-6-2 10358 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  CHSC107128  Leontodon saxatilis subsp. longirostris L. P. Janeway 2011-6-2 10356 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  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
  CAS-BOT-BC339138  Leontodon saxatilis subsp. saxatilis Lowell Ahart 1979-6-3 s.n. Yuba 1 mi s of Challenge 700 Comment
  UCR201940  Leontodon taraxacoides George K. Helmkamp, E. A. Helmkamp 2008-10-6 14203 Yuba Sacramento Valley, junction of CA-65 and Ostrom No. 3 Road, southeast of Olivehurst 24 Comment
  UCR231337  Leontodon taraxacoides George K. Helmkamp, E. A. Helmkamp 2011-5-6 17180 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
  CDA42843  Leontodon taraxacoides subsp. longirostris L. Ahart 2011-6-7 17379 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. Comment
  UCR258220  Leontodon taraxacoides subsp. taraxacoides George K. Helmkamp, Amy Barnes 2013-3-28 20258 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  CHSC113649  Lepechinia calycina L. P. Janeway 2014-5-12 11253 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
  CAS-BOT-BC88805  Lepidium campestre Lowell Ahart 1979-6-3 s.n. Yuba 1 mile south of Challenge. 550 Comment
  CAS-BOT-BC88875  Lepidium chalepense Michael A. Vincent 1999-6-12 8637 Yuba Along canal parallel to Route 20 at jct. with Feather River Boulevard, 0.4 mile north of Sutter county line, Marysville. Comment
  CHSC76272  Lepidium didymum Lowell Ahart 1999-9-17 8250 Yuba On the edge of a dirt road, Sam Shintaffer Farm, south of Woodruff Lane, south of Mathews Road, about 1/4 mile south of Sam Shintaffer's rice dryer, about 4 1/2 miles (air) northeast of Marysville. 24 Comment
  CHSC95094  Lepidium latifolium L. P. Janeway; Erin Brandy 2006-7-10 8809 Yuba Northern High Sierra Nevada. West side of Slate Creek just north of the Scales Road crossing ('35' Road); 10 m west of the creek; between dirt road miner's campsite access and the creek, close to the campsite. 905 Comment
  UCD115773  Lepidium nitidum Barbara Yungert 1974-5-3 111 Yuba Along Road 4, K 1-11 project area, Sierra Foothill Field Station. 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
  CHSC68474  Lepidium strictum Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7736 Yuba Along a dirt road, south of Dry Creek, about 1 mile east of Sfcott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 137 Comment
  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
  UCD118637  Leptosiphon bicolor Barbara Yungert 1974-4-16 43 Yuba Sierra Foothill Field Station. Comment
  CHSC63155  Leptosiphon harknessii Lowell Ahart 1994-6-27 7379 Yuba Near the east side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  UCD112035  Lessingia Christopher Mallek 2008-5-5 IC3- 17 Yuba Indiana Creek. 617 Comment
  UC1287451  Lessingia virgata Willard Spence 1962-7-25 732 Yuba Rt. 20 10 mi ne Marysville (on road to Grass Valley) 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
  RSA654105  Lessingia virgata Beecher Crampton 1974-10-11 9094 Yuba 3 miles southwest of Brown's Valley along Highway 20 Comment
  UC984808  Lilium humboldtii A. M. Vollmer and L. Beane Jul 1951 187 Yuba Brownsville Comment
  CAS-BOT-BC130619  Lilium humboldtii Mrs. J. E. Cramsie 1923-6-14 s.n. Yuba Smartsville Comment
  CAS-BOT-BC130620  Lilium humboldtii A. M. Vollmer; L. Beane 1951-7-1 187 Yuba Brownsville Comment
  CAS-BOT-BC130621  Lilium humboldtii A. M. Vollmer; L. Beane 1951-7-1 187 Yuba Brownsville Comment
  CAS-BOT-BC130622  Lilium humboldtii Albert Vollmer 1949-7-6 13 -E Yuba 1 mi. from Challenge on Challenge-Camptonville rd. Comment
  UCD82295  Lilium humboldtii Robin McMaster 1973-6-24 507 Yuba North San Juan. Comment
  JEPS125980  Lilium humboldtii subsp. humboldtii D. W. Taylor 2001-6-18 17784 Yuba Near Woodleaf, along the LaPorte road from the Butte County line to about 1 mile SW, scattered growing along road shoulder for a distance of 1/2 mile. Comment
  RSA130323  Lilium humboldtii subsp. humboldtii Albert M. Vollmer 1949-7-6 s.n. Yuba 1 mile from Challenge on Chllenge-Camptonville Road Comment
  CAS-BOT-BC130869  Lilium pardalinum Anna Cramsie 1933-4-24 s.n. Yuba Smartsville Comment
  SBBG4057  Limnanthes alba H. and M. Dearing 1939-5-6 3284 Yuba near Challenge Comment
  UCD37879  Limnanthes alba Beecher Crampton 1962-4-24 6303 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CHSC97448  Limnanthes alba subsp. alba Lowell Ahart 2007-5-14 13866 Yuba Damp bare red soil, bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113391  Limnanthes alba subsp. alba Lowell Ahart 2007-5-14 13866 Yuba Damp bare red soil, bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  RSA726963  Limnanthes alba subsp. alba L. Ahart 2007-5-14 13866 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  SJSU10806  Limnanthes douglasii subsp. rosea L. J. Ericksen 1955-4-17 118 Yuba 2 mi S of Marysville Comment
  SJSU10807  Limnanthes douglasii subsp. rosea J. B. Willis Jr. 1969-4-19 46 Yuba 5 mi E of Linda Comment
  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
  CHSC76292  Limosella aquatica Lowell Ahart 1999-9-17 8247 Yuba Sam Shintaffer Farm, south of Woodruff Lane, south of Mathews Road, 100 yards south of Sam Shintagger's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  UC718540  Linanthus filipes Carl B. Wolf 1937-5-13 Yuba 1.2 mi below Stanfield Hill (on road to Browns Valley); Sierra Nevada Foothills 274 Comment
  CHSC69433  Lindernia dubia var. anagallidea Lowell Ahart 1997-8-13 7860 Yuba On the south side of Scott Forbes Road, 1/4 mile east of the intersection of Scott Forbes Road and Peoria Road, just east of Gray Drive, about 2 1/4 miles (air) east of Browns Valley. 91 Comment
  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
  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
  CAS-BOT-BC36024  Lithocarpus densiflorus var. densiflorus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54076 Yuba About 2 miles northeast of Dobbins on Oregon Hill Road 701 Comment
  SEINET9330134  Lithocarpus densiflorus var. densiflorus Unknown 1981-6-22 3039 Yuba Oregon Hill Road, 0.1 mi N of Marysville Road, SW of Bullards Bar Dam. J.T. Howell #54076. Comment
  CAS-BOT-BC36547  Lithocarpus densiflorus var. echinoides John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54086 Yuba 3.6 miles northeast of Strawberry Valley on La Porte-Quincy road 1280 Comment
  CHSC11374  Lithocarpus densiflorus var. echinoides Lowell Ahart 1966-8-12 Yuba Near Challenge. 609 Comment
  RSA716504  Lithophragma bolanderi L. Ahart 2005-3-11 11612 Yuba About 0.5 mile W of Marysville Rd. About 0.5 mile N of Parking Area 3. Daugherty Hill Wildlife Area. Donovan Hill Managment Area. About 0.5 mile N of Loma Rica Rd. About 5 miles (air) NE of Loma Rica. 395 Comment
  CAS-BOT-BC430984  Lithophragma bolanderi Alice Eastwood 1921-5-22 10563 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
  UCD102728  Lithophragma heterophyllum Kathleen Keliher 1975-4-6 55 Yuba Below Englebright Reservoir, Sierra Foothill Field Station. 152 Comment
  CAS-BOT-BC325967  Lithospermum californicum Lowell Ahart 1980-6-19 2410 Yuba 4 miles E of Challenge. 900 Comment
  CHSC97506  Logfia gallica Lowell Ahart 2007-5-12 13768 Yuba Along the road to the power towers, about 20 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113634  Logfia gallica Lowell Ahart 2007-5-12 13768 Yuba Along the road to the power towers, about 20 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CAS-BOT-BC283567  Lolium multiflorum Saichi Kawahara 1968-4-13 295 Yuba Park's Bar, Highway 20 at N bank of Yuba River 91 Comment
  CDA2249  Lolium temulentum T. C. Fuller 1971-6-13 19888 Yuba Sierra Nevada; East shore of Lake Francis, Lake Francis Road, 1 miles southeast of Dobbins. Comment
  UCD66633  Lolium temulentum Beecher Crampton 1965-6-17 7371 Yuba Ca. 3/4 mile north of Stanfield Hill, Willow Glen Creek. 396 Comment
  CHSC96405  Lomatium marginatum var. marginatum L. P. Janeway 2006-5-24 8612 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way 1.3 road km southeast of Robinson Mill Road; 1.3 air km southeast of Robinson Mills and Forbestown Road. 771 Comment
  CHSC116217  Lonicera hispidula Lowell Ahart; Leigh Johnson 2015-6-10 20225 Yuba On the southwest side of the road just before the bridge across New York Flat Creek, along New York Flat Road, about 1/4 mile northwest of La Porte Road. 614 Comment
  UCD137351  Lonicera interrupta Barbara Yungert 1974-5-23 180 Yuba west of road, SC-14 project area, Sierra Foothill Field Station. 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
  CHSC108227  Lotus argophyllus var. fremontii Lowell Ahart 2011-6-7 17391 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  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
  JEPS113453  Lotus corniculatus Lowell Ahart 2007-6-22 14212 Yuba About 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 29 Comment
  UCD106713  Lotus corniculatus Collector unknown 1942-5-22 s.n. Yuba location unknown. Comment
  UCD106737  Lotus corniculatus Barbara Yungert 1974-5-1 98 Yuba North of Scott Lane, west of barns, opposite SC-5 project area, Sierra Foothill Field Station. Comment
  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
  UCR194900  Lotus humistratus George K. Helmkamp, E. A. Helmkamp 2007-5-26 12138 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, just north of the Nevada Co. line; beside Oregon Creek and Oregon Creek campground 430 Comment
  UC1552807  Lotus oblongifolius Frederica Bowcutt 1985-6-8 591 Yuba 1 air mi se Camptonville (and 12 air mi n of Nevada City, along Oregon Creek); Tahoe National Forest, Oregon Creek 762 Comment
  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
  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
  CHSC83042  Ludwigia palustris Lowell Ahart 2002-10-9 9969 Yuba On the south bank of Lost Creek, below the high water line of Sly Creek Reservoir, about 200 yards southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CHSC10847  Ludwigia peploides subsp. peploides Lowell Ahart 1966-9-5 Yuba San Shintaffer Ranch. 42 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
  UC710389  Lupinus albifrons C. P. Smith 1946-5-2 46252 Yuba Hiway 20, 0.3 mi e Smartville; e of Smartville Comment
  UC710391  Lupinus albifrons C. P. Smith 1946-5-2 46257 Yuba Browns Valley Road 7.1 mi sw Brownsville Comment
  SEINET10488381  Lupinus albifrons Charles Piper Smith 1948-4-27 Smith 48183 Yuba Junction dobbins and browns valley, brownsville roads. Stanfield hill, 3.4 Miles ne Comment
  CAS-BOT-BC196031  Lupinus albifrons var. albifrons Charles Piper Smith 1946-5-2 46261 Yuba Brownsville, 10 miles southwest on Browns Valley Road Comment
  CAS-BOT-BC196032  Lupinus albifrons var. albifrons Charles Piper Smith 1946-5-2 46257 Yuba Brownsville, 7.1 miles southwest on Browns Valley Road 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
  UCR196984  Lupinus albifrons var. collinus George K. Helmkamp, E. A. Helmkamp 2008-5-20 13469 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  CAS-BOT-BC196317  Lupinus albifrons var. flumineus Charles Piper Smith 1948-4-27 48173 Yuba Junction Dobbins & Browns Valley-Brownsville roads. Stanfield, 2.5 miles southwest Comment
  UCD106422  Lupinus andersonii W. R. Powell 1968-5-15 1500 Yuba on Fountain House Road, 2 miles NE of Dobbins. 792 Comment
  UCR118922  Lupinus benthamii Beecher Crampton 1967-5-17 7939 Yuba Central Sierra Nevada foothills, 5 Miles east of Brown's Valley, Sierra foothill range field station. 366 Comment
  SBBG29027  Lupinus benthamii B. Crampton 1967-5-17 Yuba 5 mi E of Brown's Valley Comment
  SFV1865  Lupinus benthamii K. Wagnon 1963-6-11 s. n. Yuba Roadside at end of Scott-Forbes Road in vicinity of Sierra Foothills Range Field Station, about 3 miles north of Smartville. 335 Comment
  UCD107040  Lupinus benthamii Barbara Yungert 1974-4-12 22 Yuba Along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UCD107041  Lupinus benthamii Barbara Yungert 1974-4-12 22 Yuba Along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  RSA21301  Lupinus benthamii var. benthamii Carl B. Wolf 1937-5-13 8646 Yuba 1.2 mi. below Stanfield Hill on road to Browns Valley. 274 Comment
  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
  UC710390  Lupinus bicolor C. P. Smith 1946-5-1 46244 Yuba 1.2 mi n Hiway 99e Wheatland; Wheatland - 1.2 mi n Hiway 99e Comment
  UCD35789  Lupinus bicolor Beecher Crampton 1962-4-24 6261 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  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
  UCD107333  Lupinus bicolor Barbara Yungert 1974-4-16 46 Yuba Cambell Valley, Sierra Foothill Field 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
  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
  CAS-BOT-BC8498  Lupinus latifolius var. viridifolius C. P. Smith 1947-5-21 47316 Yuba Camptonville, about 6 miles S along Hwy 49, 2 miles N of bridge over MIddle Fork Yuba River Comment
  UC865432  Lupinus lepidus var. sellulus Lewis S. Rose 1939-6-6 39227 Yuba Woodleaf 944 Comment
  SD236291  Lupinus microcarpus David Charlton 2005-5-16 8000 Yuba Sacramento Valley: Yuba Gold Field; just S of Yuba River; ca 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area ca. 2 mi by 1 mi. 25 Comment
  CHSC12740  Lupinus microcarpus var. densiflorus D. Huffmaster 1974-4-26 Yuba Found ca. .4 mi nw of junction Hwy. 70 and 24th street in Maysville along the railroad tracks. 18 Comment
  UC710382  Lupinus nanus C. P. Smith 1946-5-2 46256 Yuba edge of town Brownsville; Brownsville - edge of town Comment
  UC710387  Lupinus nanus C. P. Smith 1946-5-2 46255 Yuba 1.4 mi e Browns Valley Comment
  UC710408  Lupinus nanus C. P. Smith 1946-5-2 46246 Yuba Hammonton Road 1.7 mi e South Marysville; e of South Marysville Comment
  SJSU14295  Lupinus nanus N. A. Hopkins 1989-4-28 1482 Yuba Ridge Rd to Allegheny c. 3 mi off Hwy 49 1219 Comment
  JEPS118080  Lupinus nanus var. vallicola Lowell Ahart 2011-6-7 17394 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  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
  UCR206945  Lupinus polyphyllus var. burkei George K. Helmkamp, E. A. Helmkamp 2009-5-28 14835 Yuba Sierra Nevada Mountains Foothills, along CA-49, 2.2 miles north of the Camptonville exit 811 Comment
  JEPS107417  Lupinus stiversii Lowell Ahart 2005-3-11 11610 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
  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
  CHSC63199  Luzula cascadensis Lowell Ahart 1994-6-27 7395 Yuba Near the south-east side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  CDA7739  Luzula comosa Wilson 2008-3-27 PDR# 1470580 Yuba Oregon Heights, 9448 Rices Texas Hill 0 Comment
  JEPS118081  Luzula macrantha Lowell Ahart 2011-6-7 17419 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CAS-BOT-BC441309  Luzula macrantha Gordon H. True 1963-5-2 1208 Yuba Sierra Nevada: Oregon Creek at jct. with middle Yuba River, at Freeman's Crossing 457 Comment
  CAS-BOT-BC441310  Luzula macrantha Lowell Ahart 1968-4-21 s.n. Yuba Sierra Nevada: 5 miles SE of Challenge 609 Comment
  JEPS112957  Luzula parviflora Dean W. Taylor 2001-6-19 17793 Yuba creek along Forest Road 20N35 tributary to Brushy Creek near Diamond Ravine (ca. 3 air miles SW of Union Hill) 1127 Comment
  JEPS126010  Luzula parviflora D. W. Taylor 2001-6-19 17793 Yuba Ca 3 air miles SW of Union Hill; creek along Forest Road 20N35 tributary to Brushy Creek near Daimond Ravine. Comment
  CDA28924  Lycopodiella cernua Berger/Saunders 2009-4-9 s.n. Yuba Olivehurst, 1714 Chateau Drive. 0 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
  JEPS124316  Lycopus americanus Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20644 Yuba Below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CHSC108209  Lythrum hyssopifolia Lowell Ahart 2011-6-7 17404 Yuba North of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCD103041  Lythrum hyssopifolia Kathleen Keliher 1975-5-28 116 Yuba Near Dry Creek and Rowell's property. Comment
  UCD111879  Maclura pomifera Barbara Yungert 1974-5-15 163 Yuba Sierra Foothill Field Station. Above Dry Creek near P-2 fence line, P-2 project area. Comment
  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
  CHSC63238  Madia exigua Lowell Ahart 1994-6-5 7300 Yuba On the south side of Costa Creek, on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  JEPS95343  Madia exigua Lowell Ahart 1994-6-5 7300 Yuba ca. 3 (air) mi e Forbestown (s side of creek, e side of Forbestown Rd.); Costa Creek 853 Comment
  SEINET7072998  Madia exigua A. G. Vestal 1963-5-30 s.n. Yuba Turn-off to Timbuctoo from Route 20 at Yuba River. UTM Zone 10, 643966mE, 4342277mN. Coordinate datum: NAD27). Comment
  UC1535367  Madia exigua Barbara Yungert 1974-5-9 138 Yuba along Road 1, p 1-12 project area, Sierra Foothill Field Station Sierra Foothills Comment
  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-BC334672  Madia glomerata Lowell Ahart 1980-8-12 2552 Yuba Along Slate Creek, Sierra Nevada 1250 Comment
  CAS-BOT-BC343559  Madia gracilis Lowell Ahart 1980-8-12 2551 Yuba Along Slate Creek 1250 Comment
  CHSC110320  Madia gracilis L. P. Janeway 2013-6-7 11137 Yuba Northern High Sierra Nevada. Along Oregon Hill Road just south of Little Oregon Creek. 628 Comment
  CHSC37191  Madia gracilis L. Ahart 1982-7-4 3660 Yuba Ca. 1/2 mi e of Brownsville along LaPorte Rd. 700 Comment
  CHSC84236  Madia gracilis Lowell Ahart 2003-7-6 10355 Yuba Near a meadow, east of the power line, about 30 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  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
  UCD134296  Madia gracilis G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12837 Yuba Northern Sierra Nevada Mountains Foothills: along Hwy. CA-49, 0.5 mile south of Camptonville. 817 Comment
  CAS-BOT-BC343558  Madia gracilis Lowell Ahart 1982-7-4 3660 Yuba About 1/2 mile east of Brownsville, along La Porte Road 700 Comment
  SBBG128105  Madia gracilis L. Ahart 2011-6-7 17380 Yuba rd margin, ca. 25 yards S of the huge gravel bar along the Yuba River, ca. 150 yards W of the S end of Parks Bar Bridge (Hwy 20), ca. 15 mi (by air) NE of Marysville 66 Comment
  UCD134276  Madia gracilis L. Ahart 1982-7-4 3660 Yuba ca. 1/2 mile east of Brownville, along La Porte Road. 700 Comment
  UCR118918  Madia rammii Beecher Crampton 1957-6-5 4154 Yuba Central Sierra Nevada foothills., 1.3 Miles east of Oregon House Store 457 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
  UCD134347  Malacothrix clevelandii Collector Unknown 1925-5-17 1622 Yuba Marysville Buttes. Comment
  CHSC40955  Malacothrix floccifera J. D. Jokerst 1984-7-5 2084 Yuba Canyon of the N. Fork Yuba River, N. of the river at its junction with Deadwood Creek. 701 Comment
  CHSC110339  Malus pumila L. P. Janeway; Tim Hanson 2013-4-25 11094 Yuba Northern High Sierra Nevada. Plumas National Forest; 50 m east of Oregon Hill Road between Burnt Bridge Creek and Little Oregon Creek. 640 Comment
  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
  CHSC90465  Marah fabacea var. agrestis Lowell Ahart 2005-3-11 11602 Yuba In the center of a large rock outcrop, just east of the poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 386 Comment
  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
  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
  CHSC43408  Medicago lupulina Lowell Ahart 1979-6-3 1921 Yuba About 1 mile south of Challenge. 670 Comment
  UCD107725  Medicago lupulina Beecher Crampton 1966-6-14 7743 Yuba Yuba County, 1 mile east of Brownsville. 731 Comment
  SEINET7042629  Medicago lupulina A. G. Vestal 1963-5-7 s.n. Yuba Ca. 3.5 miles north of Wheatland. Camp Far West quadrangle UTM Zone 10, 640908mE, 4323324mN. Comment
  CHSC108198  Medicago polymorpha Lowell Ahart 2011-6-7 17396 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC97677  Medicago polymorpha Lowell Ahart 2007-5-14 13871 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS118305  Medicago polymorpha Lowell Ahart 2011-6-7 17396 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCD110817  Melica Christopher Mallek 2008-1 DF1- 13 Yuba Daken Flat. 675 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
  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
  UC1153840  Melica harfordii Beecher Crampton 1954-5-10 1850 Yuba 6 mi ne Camptonville (State Hwy 49, canyon of the north fork of the Yuba River) Comment
  CDA32495  Melica harfordii G. D. Barbe, J. T. Howell & T. C. Fuller 1981-6-22 3041 Yuba 0.1 mile north of Marysville Road on Oregon Hill Road, west of Bullards Bar Reservoir. Comment
  CHSC68463  Melica torreyana Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7730 Yuba Along the south side of Dry Creek, north of the poor dirt road, about 1 mile east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 121 Comment
  JEPS94322  Melica torreyana Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7730 Yuba about 17 mi ne of Marysville (along the s side of Dry Creek, n of the poor dirt road, about 1 mi e of Scott Forbes Road (Long Bar Road)); Dry Creek 121 Comment
  UCD89075  Melica torreyana Beecher Crampton 1965-5-11 7316 Yuba 3 miles east of Brown's Valley. Comment
  CHSC97684  Melilotus albus Lowell Ahart 2007-11-1 14541 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  RSA726437  Melilotus albus L. Ahart 2007-11-1 14541 Yuba About 1 mile northwest of Old Camptonville Road, about 1.5 miles (air) west of Camptonville. 627 Comment
  CDA40728  Mentha canadensis L. Ahart 2002-10-9 9968 Yuba On the north bank of Lost Creek, below the high water line of Sly Creek Reservoir, about 100 yards southwest of the Day Camp, Sly Creek Reservoir. Comment
  CDA19166  Mentha pulegium Roush 2000-6-27 PDR 1199230 Yuba Sacramento Valley; on N side of Iowa City Road, Marysville. 0 Comment
  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
  UCD81497  Micranthes californica Christopher Michael Bronny 2009-4-1 9 Yuba Oat Hills' area of Sierra Nevada foothills. 146 Comment
  UCD37850  Micropus Beecher Crampton 1962-4-24 6254 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCR169025  Micropus californicus David Charlton 2005-5-16 8020 B Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  JEPS94318  Micropus californicus var. californicus Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7723 Yuba about 17 mi ne of Marysville (on bank of the Browns Valley Water Ditch, s of the poor dirt road, s of Dry Creek, about 1 mi e of Scott Forbes Road (Long Bar Road)); Browns Valley Water Ditch 182 Comment
  UCR257159  Micropus californicus var. californicus George K. Helmkamp 2014-4-17 22769 Yuba Sierra Nevada Foothills, Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville 264 Comment
  UCD134518  Micropus californicus var. californicus Barbara Yungert 1974-4-25 81 Yuba lower SC-14 project area, Sierra Foothill Field Station. Comment
  UCD37877  Microseris acuminata Beecher Crampton 1962-4-24 6301 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  RSA21295  Microsteris gracilis subsp. humilis C. B. Wolf 1937-5-13 8640 Yuba Sierra Nevada Foothills, 2.7 mi below Stanfield Hill on road to Browns Valley. 183 Comment
  CHSC115287  Mimulus aurantiacus var. grandiflorus Lowell Ahart 2015-4-30 20130 Yuba Serpentine, on the east side of the quarry, about 1 1/4 mile (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. 709 Comment
  UC943803  Mimulus aurantiacus var. grandiflorus H. E. McMinn 1946-5-11 5507 Yuba road from Dobbins to Camptonville; North Fork Yuba River Comment
  SEINET12334053  Mimulus bifidus D. B. Wilson 1972-1 1 Yuba ca 300 yds NW of Englebrigh Reservoir on Yuba River E of Nevada City 244 Comment
  CAS-BOT-BC9749  Mimulus discolor George Ledyard Stebbins 1966-5-22 6409 Yuba Near Forbestown 822 Comment
  RSA715485  Mimulus floribundus L. Ahart 2005-3-11 11608 Yuba About 0.5 mile W of Marysville Rd. About 0.5 mile N of Parking Area 3. Daugherty Hill Wildlife Area. Donovan Hill Managment Area. About 0.5 mile N of Loma Rica Rd. About 5 miles (air) NE of Loma Rica. 395 Comment
  JEPS86881  Mimulus guttatus David M. Thompson 1988-3-21 848 Yuba between 0.8 and 0.9 mi w of Hwy 49 bridge Yuba River (along Moonshine Road, which starts on the n side of the bridge) 440 Comment
  UCD122717  Mimulus guttatus Barbara Yungert 1974-4-14 34 Yuba along road 5, outside Meathook area, Sierra Foothill Field Station. Comment
  UCSB59403  Mimulus kelloggii Thompson, David 1988-3-21 Yuba Between 0.8 and 0.9 mi W of Hwy 49 bridge over Yuba River along Moonshine Road; which starts on the N side of the bridge; T18N, R8E, center of N1/2 NW1/4 S33 440 Comment
  UC886288  Mimulus moniliformis Lewis S. Rose 1939-6-6 39233 Yuba Strawberry Valley 1219 Comment
  POM161754  Mimulus moschatus R. C. Bacigalupi 1927-7-2 1587 Yuba Highway to Downieville about 8 mi NE of Camptonville. Comment
  CAS-BOT-BC174591  Minuartia californica Gordon H. True 1963-4-17 1175 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Hwy. 30 Comment
  CAS-BOT-BC174564  Minuartia californica Gordon H. True 1966-4-7 2681 Yuba About 5 miles east of Wheatland and 1 mile north of Bear River 54 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
  SJSU10222  Moehringia macrophylla C. W. Sharsmith 1983-6-8 8803 Yuba Slate Cr at bridge crossing of Scales & Quincy-La Porte Rd 1066 Comment
  CHSC113180  Mollugo verticillata Lowell Ahart 2013-11-30 19298 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  CHSC81801  Mollugo verticillata Lowell Ahart 2001-11-2 9402 Yuba Camp Far West Reservoir, about 1/4 mile mortheast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  CHSC83037  Mollugo verticillata Lowell Ahart 2002-10-9 9970 Yuba Along 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
  JEPS102556  Mollugo verticillata Lowell Ahart 2001-11-2 9402 Yuba Camp Far West Reservoir, about 1/4 mile mortheast of the dam, about 9 miles (air) SE of Wheatland. 83 Comment
  CAS-BOT-BC219941  Monardella breweri subsp. lanceolata Lowell Ahart 1983-8-10 4273 Yuba Along the Peterson Ridge Road, about 5 miles east of Challenge 1000 Comment
  NY429325  Monardella candicans var. venosa J. M. Bigelow 1854-5-25 s.n. Yuba Plain of Feather River near Marysville Comment
  UCD82843  Monardella glauca Robin McMaster 1973-6-24 483 Yuba Oregon Creek Campground. Comment
  SEINET10935796  Monardella lanceolata Lowell Ahart, Peter Ahart 1983-8-10 Ahart 4273 Yuba Along Peterson Rd, ca. 5 mi e of Challenge. Yellow Pine Forest; 1000 m. 1000 Comment
  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
  UCD125241  Monardella sheltonii W. R. Powell 1968-5-15 1494 Yuba 2 miles NE of Dobbins on Fountain House Road. 792 Comment
  JEPS95003  Monardella villosa subsp. villosa Lowell Ahart 1997-8-7 7812 Yuba about 3 air miles southeast of Challenge (on the north side of the dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  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
  CHSC96425  Montia fontana subsp. chondrosperma Lowell Ahart 2007-4-17 13689 Yuba Bottom of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daughtery Hill Wildlife Area, Donovan Hill Management Area, abouit 5 1/2 miles (air) northwest of Loma Rica. 292 Comment
  CAS-BOT-BC260519  Muhlenbergia filiformis Lowell Ahart 1980-8-12 2567 Yuba Along Slate Creek 1250 Comment
  CHSC47623  Muhlenbergia filiformis Lowell Ahart 1980-8-12 2567 Yuba Gravel bar, Slate Creek, a little below where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  JEPS103480  Muhlenbergia filiformis Lowell Ahart 2002-10-9 9972 Yuba On the S bank of Lost Creek, below the high water line of Sly Creek Reservoir, ca 200 yards SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CAS-BOT-BC274930  Muhlenbergia rigens Lowell Ahart 1977-2-16 s.n. Yuba About 4 miles NE of Marysville Comment
  CHSC97708  Muhlenbergia rigens Lowell Ahart 2007-11-8 14590 Yuba North of a small island, on the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 91 Comment
  CHSC76280  Myriophyllum aquaticum Lowell Ahart 1999-9-17 8258 Yuba Rice field, 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
  JEPS95852  Myriophyllum aquaticum Lowell Ahart 1999-9-17 8258 Yuba Sam Shintaffer Farm; on the west side of Kimball Lane; near the intersection of Kimball Lane and Hallwood Blvd.; about 3/4 mile south of Sam Shintaffer's rice dryer; about 4 1/4 miles (air) northeast of Marysville 22 Comment
  CDA19112  Myriophyllum spicatum Onstott, Storm 2001-3-19 PDR P 116776 Yuba on Durby Lane, Browns Valley. 0 Comment
  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-BC260116  Nassella pulchra Gordon H. True 1963-4-17 1157 Yuba About 3 miles S of Smartville on Beale Air Force Base 213 Comment
  UCD87472  Nassella pulchra Beecher Crampton 1957-6-5 4143 Yuba 1 mile east of Stanfield Hill. Comment
  UCD87479  Nassella pulchra Beecher Crampton 1962-4-24 6274 Yuba 5 miles east of Browns Valley. Sierra Foothill Range Field Station. Comment
  SEINET7072977  Navarretia A. G. Vestal 1963-5-29 s.n. Yuba At 99 East and Beale Road [Presently 99 & Camp Beale Road]. UTM Zone 10, 622422mE, 4331929mN. Coordinate datum: NAD27). Comment
  UCR168803  Navarretia David Charlton 2005-5-16 8027 A Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  RSA0107825  Navarretia divaricata subsp. divaricata George K. Helmkamp, E. A. Helmkamp 2007-8-29 12832 A Yuba Northern Sierra Nevada Mountains Foothills: along Hwy CA-49, 0.5 mile south of Camptonville. 817 Comment
  UCR189051  Navarretia divaricata subsp. divaricata George K. Helmkamp, E. A. Helmkamp 2007-8-29 12832 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 Comment
  POM299237  Navarretia eriocephala L. S. Rose 1939-6-5 s.n. Yuba Smartsville 183 Comment
  CHSC44335  Navarretia filicaulis Lowell Ahart 1975-6-25 809 Yuba Near the Brownsville dump, about 1 mile west of Brownsville. 396 Comment
  UC570359  Navarretia filicaulis A. E. Wieslander 1933-6-21 255 Yuba 1.5 mi w Rapps Ranch; Smartsville Quad. 457 Comment
  RSA123151  Navarretia filicaulis A. E. Wieslander 1933-6-21 255 Yuba 1.5 miles west of Rapps Ranch 457 Comment
  UCD37132  Navarretia heterandra Beecher Crampton 1957-6-5 4118 Yuba 10 miles east of Marysville, along State Highway 20. Comment
  UC856821  Navarretia intertexta Lewis S. Rose 1940-5-28 40377 Yuba Browns Valley 60 Comment
  UCD33664  Navarretia intertexta Beecher Crampton 1971-6-18 8735 Yuba Yuba County, Sierra Foothill Range Field Station, ca. 6.5 miles east of Browns Valley, east of headquarters. Comment
  UCR118919  Navarretia intertexta Beecher Crampton 1957-6-5 4132 Yuba Central Sierra Nevada foothills., 2.6 Miles northeast of Brown's Valley Post Office 366 Comment
  OBI11322  Navarretia intertexta Lewis S. Rose 1967-6-13 67127 Yuba Camp Far West Reservoir, 7 mi NE of Wheatland. 122 Comment
  RSA189453  Navarretia intertexta L. S. Rose 1967-6-13 67127 Yuba Camp Far West Reservoir, 7 mi. NE of Wheatland 122 Comment
  SJSU10209  Navarretia intertexta C. W. Sharsmith 1983-6-7 8790 Yuba Rose Ranch c. 4 mi NE of Strawberry Valley on the La Porte-Wuincy Rd; boundary Yuba & Sierra county 1432 Comment
  UCD48460  Navarretia intertexta Barbara Yungert 1974-5-16 158 Yuba Above Dry Creek, L 1-11 project area, Sierra Foothill Field Station, Yuba County, California. Comment
  UCD48461  Navarretia intertexta Barbara Yungert 1974-5-23 177 Yuba Along fence of F 1-11 project area, near Road 3, Sierra Foothill Field Station, Yuba County, California. Comment
  CDA40265  Navarretia intertexta subsp. intertexta L. Ahart 2002-6-3 9685 Yuba Along a small drainage, in a large open meadow like area, about 140 yards west of where a few people park along Long Ravine Road, about one mile southeast of the intersection of Long Ravine Road and Camp Far West Road, northeast of Camp Far West Reservoir. Comment
  CHSC84171  Navarretia intertexta subsp. intertexta Lowell Ahart 2003-7-6 10356 Yuba Near a meadow, east of the power line, about 30 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  UCD147084  Navarretia intertexta subsp. intertexta Chuck Hughes 2013-5-2 369 Yuba Northwest margin of Camp Far West Reservoir. 97 Comment
  UCD35858  Navarretia leucocephala Beecher Crampton 1965-5-11 7325 Yuba 2.5 miles southwest of Brown's Valley. Comment
  UCD37130  Navarretia leucocephala Beecher Crampton 1957-6-5 4115 Yuba 10 miles east of Marysville, along State Highway 20. Comment
  UCD48528  Navarretia leucocephala Beecher Crampton 1965-5-11 7325 Yuba 2.5 miles s.w. Brown's Valley. Comment
  SEINET7042611  Navarretia leucocephala A. G. Vestal 1963-5-29 s.n. Yuba Olivehurst-Smartville Road [presently Hammonton- Smartville Road]. 0.4 mile west of road south to Beale Air Force Base [Smartville Road]. Smartville quadrangle UTM Zone 10, 646242mE, 4339869mN. Comment
  JEPS113396  Navarretia leucocephala subsp. leucocephala Lowell Ahart 2007-5-12 13806 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UCD147080  Navarretia leucocephala subsp. leucocephala Chuck Hughes 2013-5-2 365 Yuba Northwest margin of Camp Far West Reservoir. 97 Comment
  CHSC108214  Navarretia pubescens Lowell Ahart 2011-6-7 17406 Yuba Openings in woodlands, about 100 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS118070  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
  OBI48930  Navarretia pubescens Lewis S. Rose 1939-6-5 39202 Yuba Smartsville 183 Comment
  SEINET3163760  Navarretia pubescens L. S. Rose 1939-6-5 39202 Yuba Smartsville 183 Comment
  UC856882  Navarretia pubescens Lewis S. Rose 1939-6-5 39202 Yuba Smartsville 182 Comment
  UCR118894  Navarretia pubescens Beecher Crampton 1957-6-5 4131 Yuba Central Sierra Nevada foothills., 2.6 Miles northeast of Brown's Valley Post Office 366 Comment
  CAS-BOT-BC229014  Navarretia pubescens Beecher Crampton 1957-6-5 4131 Yuba 2.6 miles northeast of Brown's Valley P.O. Comment
  UCD118213  Navarretia squarrosa G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12832 A Yuba Northern Sierra Nevada Mountains: along Hwy CA-49, 0.5 mile south of Camptonville. 817 Comment
  CHSC97451  Navarretia tagetina Lowell Ahart 2007-5-12 13808 Yuba On dry bare distrubed dark soil, about 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  RSA750179  Navarretia tagetina J. R. Shevock, Bob Holland 1985-5-6 11126 Yuba Beale Air Force Base E of Marysville. Pools adjacent to runway. 40 Comment
  OBI11296  Navarretia tagetina Lewis S. Rose 1967-6-13 67124 Yuba 7 mi NE of Wheatland. 61 Comment
  UC606918  Nemophila heterophylla L. Constance 1938-6-8 2292 Yuba 4 mi nw North San Juan (Middle Fork Yuba River); Sierra Nevada foothills, Middle Fork Yuba River 426 Comment
  UC718060  Nemophila heterophylla Carl B. Wolf 1937-5-13 8638 Yuba on road to Browns Valley 2 7/10 mi below Stanfield Hill; Sierra Nevada foothills, below Stanfield Hill 182 Comment
  UCR194912  Nemophila heterophylla George K. Helmkamp, E. A. Helmkamp 2007-5-26 12134 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville 802 Comment
  RSA21293  Nemophila heterophylla Carl B. Wolf 1937-5-13 8638 Yuba Sierra Nevada Foothills, 2.7 mi below Stanfield Hill on road to Browns Valley. 183 Comment
  UCD120072  Nemophila heterophylla Barbara Yungert 1974-4-16 53 Yuba Koch Livestock Area, Sierra Foothill Field Station. Comment
  CHSC90478  Nemophila maculata Lowell Ahart 2005-3-11 11622 Yuba On the east side of Los Verjeles Road, about 100 yards north of Loma Rica Road, about 4 miles (air) northeast of Loma Rica. 325 Comment
  CHSC111038  Notholithocarpus densiflorus L. P. Janeway; Tim Hanson 2013-10-24 11211 Yuba Northern High Sierra Nevada. Plumas national Forest; Challenge Experimental Forest; broad ridgeline between Challenge and Golden Gate Ravine, 1700 m north-northwest of Challenge. 817 Comment
  JEPS120544  Notholithocarpus densiflorus L. P. Janeway, Tim Hanson 2013-10-24 11211 Yuba Northern High Sierra Nevada. Plumas National Forest; Challenge Experimental Forest; broad ridgeline between Challenge and Golden Gate Ravine, 1700 m north-northwest of Challenge. Comment
  SJSU10226  Notholithocarpus densiflorus var. echinoides C. W. Sharsmith 1983-6-8 8807 Yuba near Slate Cr bridge crossing on Quincy-LaPorte Rd 1066 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
  CDA3518  Nymphaea odorata G. D. Barbe 1977-4-18 2253 b Yuba 13th and D Streets, Marysville . 0 Comment
  CDA3522  Nymphaea odorata G. D. Barbe 1977-4-18 2253 b Yuba 13th and D Streets, Marysville . 0 Comment
  RSA712849  Odontostomum hartwegii L. P. Janeway 2006-5-24 8621 Yuba Northern Sierra Nevada Foothills, E side of Ponderosa Way 1.3km N of La Porte Road and Brownsville 686 Comment
  UC844106  Odontostomum hartwegii Alice Eastwood 1921-5-22 10526 Yuba Los <Vergils> 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
  SEINET7042409  Odontostomum hartwegii A. G. Vestal 1963-5-30 s.n. Yuba Road west to Forbestown. Ca 1.5 miles east of Forbestown and 2.6 miles west of Brownsville. Rackerby quadrangle UTM Zone 10, 648106mE, 4372559mN. Comment
  CHSC32098  Oenothera elata subsp. hirsutissima L. Ahart 1977-8-22 1556 Yuba Near irrigation ditch, ca. 4 mi e of Marysville. 40 Comment
  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
  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
  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
  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
  JEPS121732  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. Comment
  UCD88530  Panicum acuminatum var. fasciculatum Beecher Crampton 1965-6-17 7367 Yuba ca. 0.75 mile north of Stanfield Hill, Willow Glen Creek. 396 Comment
  UCD88531  Panicum acuminatum var. fasciculatum Beecher Crampton 1966-6-14 7745 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  CHSC97485  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
  UCD89509  Panicum capillare Floyd Forbes 1922-7-6 s.n. Yuba Marysville. Comment
  CAS-BOT-BC253827  Panicum dichotomiflorum Lowell Ahart 1977-8-31 1546 Yuba Sam Shintaffer Farm, 2 miles NE of Marysville 30 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
  JEPS113807  Panicum dichotomiflorum Lowell Ahart 2007-6-22 14219 Yuba Bottom of a new ditch, near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC76115  Panicum dichotomiflorum subsp. dichotomiflorum Lowell Ahart 1999-9-5 8198 Yuba On the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 Comment
  JEPS95851  Panicum dichotomiflorum subsp. dichotomiflorum Lowell Ahart 1999-9-5 8198 Yuba on the disturbed area on the south side of Woodruff Lane; just west of Kimball Lane; about 5 miles (air) northeast of Marysville 24 Comment
  CHSC108224  Parentucellia viscosa Lowell Ahart 2011-6-7 17415 Yuba North of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS108544  Parentucellia viscosa L. P. Janeway 2006-5-24 8635 Yuba Northern Sierra Nevada Foothills. Dougherty Hill Wildlife Area, Donovan Hill Unit; east of Los Verjeles Road 1.25 km north of Loma Rica Road. In nearby pastures 241 Comment
  SJSU10207  Parentucellia viscosa C. W. Sharsmith 1983-6-6 8788 Yuba near junction of Loma Rica & Fruitland Rds c. 0.5 mi S of La Porte-Quincy Rd 1219 Comment
Read comments
May 29 2009
  UCD168080  Paspalum dilatatum James Neilson 1961-10-16 461 Yuba Near Hallwood. 5 mi. east of Marysville, Hi. 20.. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UCD88732  Paspalum dilatatum Beecher Crampton 1964-10-22 7227 Yuba 3 miles east of Brown's Valley Dry Creek. Comment
  UCD88742  Paspalum dilatatum L. Osborn 1951-11-27 s.n. Yuba Sid Smith's Ranch. Comment
  CHSC10747  Paspalum distichum Lowell Ahart 1966-9-4 Yuba Sam Shintaffer Ranch. 39 Comment
  UC1555418  Paspalum distichum H. R. Bennett 1954-8-6 Yuba 4 mi ne Marysville 22 Comment
  CHSC116215  Paspalum urvillei Lowell Ahart 2015-6-16 20246 Yuba Near the water ditch, about 100 yards south of the poor dirt road, about 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. 829 Comment
  UCD88973  Paspalum urvillei Beecher Crampton 1966-6-14 7749 Yuba 1 mile east of Brownsville. 731 Comment
  CAS-BOT-BC202813  Paxistima myrsinites L. P. Janeway; Jean Witzman; Robin Fallsheer 1992-4-15 4152 Yuba Southwest side of Slapjack Creek, 1 mi southeast of Woodleaf 899 Comment
  UCD123318  Pedicularis densiflora Kathleen Keliher 1975-5-6 88 Yuba near Forbestown Road, ca. 40 meters from La Porte Road, 1 mile east of Woodloaf, ca. 7 meters from disturbed area. 929 Comment
  UCD123319  Pedicularis densiflora Kathleen Keliher 1975-4-24 68 Yuba near Marysville and Bald Mountain Roads, four miles east of Browns Valley. 91 Comment
  UCD123328  Pedicularis densiflora W. R. Powell 1968-5-24 1550 Yuba 1 1/4 miles south-southwest of Challenge. 755 Comment
  CHSC117657  Pedicularis racemosa Lowell Ahart 2016-9-9 21343 Yuba On the east side of road, after crossing Slate Creek on Old County Road to Scales, take first road to the right and go about 1/2 mile, near Stowman Ravine, about 3 miles (air) southwest of Poverty Hill Mine, about 8 miles (air) southwest of La Porte. 1214 Comment
  UC1861770  Pellaea Ruth Kirkpatrick 2005-7-17 1356 Yuba ca. 0.4 mi N of bridge over middle fork of Yuba River on Hwy 49 502 Comment
  SEINET6626521  Pellaea mucronata A. Tiehm 1975-1 651 Yuba U.C. Sierra Foothill Field Station Comment
  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
  JEPS35169  Pellaea mucronata var. mucronata Mrs. S. M. Rust Yuba Comment
  UC1063277  Penstemon azureus var. angustissimus A. E. Wieslander 1935-6-19 320 Yuba 2 mi s Kentucky House; Smartsville Quad., s of Kentucky House Comment
  UC887064  Penstemon heterophyllus Lewis S. Rose 1940-5-28 40394 Yuba Oregon House 457 Comment
  CHSC115299  Penstemon laetus Lowell Ahart 2015-4-30 20136 Yuba On dry soil, road cut, on the east side of La Porte Road, about 2 1/4 miles (air) southwest of Brownsville, about 2 miles (air) northeast of Rackerby. Foothill Woodland. 504 Comment
  SEINET3160435  Penstemon laetus subsp. laetus L. S. Rose 1939-6-7 39236 Yuba S Fork Feather River, 3 mi S of Pulsa 610 Comment
  SEINET7072994  Penstemon laetus var. laetus A. G. Vestal 1963-5-30 s.n. Yuba Meadow about 3.9 miles south of Brownsville and 0.3 mile north of Willow Glen Ranch on Willow Glen Road. UTM Zone 10, 647202mE, 4364746mN. Coordinate datum: NAD27). Comment
  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
  NY604500  Penstemon laetus var. leptosepalus D. D. Keck 1930-7-25 983 Yuba Bullards Bar Reservoir 457.2 Comment
  SEINET11262157  Penstemon laetus var. leptosepalus Karl A. Vincent, Charlotte A. Labbe 1987-8-10 4504 Yuba Sierra Nevada, New York Flat. Along N side of LaPorte Rd (CA E21) at jct New York House (Rd) ca 1.8 mi W of Challange.; 0 732 Comment
  SEINET11262158  Penstemon laetus var. leptosepalus Karl A. Vincent 1987-6-24 4431 Yuba Sierra Nevada, New York Flat. Along N side of LaPorte Rd (CA E21) at jct New York House (Rd) ca 1.8 mi W of Challange.; 0 732 Comment
  NY604501  Penstemon laetus var. leptosepalus D. D. Keck 1932-7-1 1608 Yuba 1 mile southeast of Log Cabin Service Station, west of Camptonville. 609.6 Comment
  NY604508  Penstemon laetus var. leptosepalus K. A. Vincent 1987-8-10 4504 Yuba Sierra Nevada, New York Flat; along north side of LaPorte Rd. (CA E21) at jct. New York House (Rd.) ca. 1.8 miles west of Challenge. 731.5 Comment
  POM190467  Penstemon laetus var. leptosepalus D. D. Keck 1932-7-1 1608 Yuba 1 mile SE of log Cabin Service Station, W of Camptonville. 610 Comment
  RSA668003  Penstemon laetus var. leptosepalus Karl Vincent 1987-6-24 4431 Yuba Sierra Nevada, New York Flat; along N side of LaPorte Rd (CA E21) at jct. New York House (Rd.) ca 1.8 mi W of Challenge. 732 Comment
  RSA668196  Penstemon laetus var. leptosepalus Karl Vincent, Charlotte A. Labbe 1987-8-10 4504 Yuba Sierra Nevada, New York Flat. Along N side of LaPorte Rd (CA E21) at jct. New York House (Rd.) ca 1.8 mi W of Challenge. 732 Comment
  UC1874802  Penstemon laetus var. leptosepalus Karl Vincent, Charlotte Labbe 1987-8-10 4504 Yuba Sierra Nevada, New York Flat; On S-facing roadbank below mxed conifer-hardwood forest along N side of LaPorte Rd. (CA E21) at jct. New York House (Road) ca 1.8 mi W of Challenge. 731 Comment
  UCR195157  Penstemon neotericus George K. Helmkamp, E. A. Helmkamp 2007-5-26 12146 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, just north of the Nevada Co. line; beside Oregon Creek and Oregon Creek campground 430 Comment
  CHSC62139  Penstemon newberryi var. newberryi B. Castro 1987-5-8 71 Yuba Ca 0.2 mi SE of bridge over Slate Creek. On edge of Slate Creek Canyon. 1097 Comment
  SEINET12315995  Pentagramma triangularis E. O. Pelton 1878-1 s.n. Yuba no further locality Comment
  UCD137770  Pentagramma triangularis Barbara Yungert 1974-4-16 51 Yuba Koch Livestock Area, Sierra Foothill Field Station. Comment
  CHSC115301  Pentagramma triangularis subsp. triangularis Lowell Ahart 2015-4-30 20131 Yuba Serpentine, on the weast side of the quarry, about 1 1/4 miles (air) south west of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. Yellow Pine Forest. 709 Comment
  JEPS107678  Pentagramma triangularis subsp. triangularis Lowell Ahart 2005-3-11 11601 Yuba On W side of large rock outcrop, just E of the poor dirt road, ca. 1/2 mi W of Marysville Rd, ca. 1/2 mi N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, ca. 1/2 mi N of Loma Rica Rd, ca. 5 mi (air) NE of Loma Rica 386 Comment
  CAS-BOT-BC211273  Perideridia bacigalupii Lowell Ahart 1980-8-12 2527 Yuba About 2 miles south-east of Woodleaf 800 Comment
  CHSC108169  Perideridia bacigalupii L. P. Janeway 2011-8-15 10646 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 1.9 air km south-southwest of Oregon Peak, 0.3 km north of Marysville Road. Southwest edge of meadow area, where seasonal drainage occurs and in sheetlfow parts of the meadow. 750 Comment
  CHSC69128  Perideridia bacigalupii Lowell Ahart 1997-8-7 7810 Yuba On the north side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  CHSC108149  Perideridia kelloggii L. P. Janeway 2011-8-15 10649 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 1.9 air km south-southwest of Oregon Peak, 0.3 km north of Marysville Road. Southwest edge of meadow area, where seasonal drainage occurs and in sheetlfow parts of the meadow. 750 Comment
  JEPS118647  Perideridia kelloggii L. P. Janeway 2010-8-11 10139 Yuba Northern High Sierra Nevada. Plumas National Forest; under the power lines about 150 m northwest of Oregon Hill Road 2.2 road km north of Marysville Road; about half way between Oregon Peak and Summit Hill. Comment
  JEPS95124  Perideridia lemmonii Lowell Ahart 1997-8-7 7824 Yuba about 3 air mi se of Challenge (on e side of the dirt road, near an unnamed stream, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  JEPS95165  Perideridia lemmonii Lowell Ahart 1997-8-7 7824 Yuba about 3 air mi se of Challenge (on e side of the dirt road, near an unnamed stream, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  UC1389942  Perideridia lemmonii T. I. Chuang and R. Bacigalupi 1963-8-1 5909 Yuba Comment
  CHSC47472  Persicaria lapathifolia Lowell Ahart 1977-8-31 1558 Yuba Growing in shallow water in a rice field, on the Sam Shintaffer Farm, about 2 miles north-east of Marysville. 27 Comment
  CHSC81810  Persicaria lapathifolia Lowell Ahart 2001-11-2 9394 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  CHSC116032  Persicaria maculosa Lowell Ahart 2015-11-19 20677 Yuba 100 yards or more north of the spillway area, below the high water line, west side of Lake Francis, about 1-1/2 miles south of Dobbins. 512 Comment
  CHSC76289  Persicaria maculosa Lowell Ahart 1999-9-17 8242 Yuba On the margins of a rice field, south of Woodruff Lane, just east of Mathews road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  JEPS124263  Persicaria maculosa Lowell Ahart 2015-11-19 20677 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  UCD99571  Persicaria maculosa G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12835 Yuba Northern Sierra Nevada Mountains: along Hwy. CA-49, 0.5 mile south of Camptonville. 817 Comment
  CHSC116117  Persicaria punctata Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20640 Yuba On the bottom of the outflow area at the bottom of Lake Francis Dam, Lake Francis, about 1-1/2 miles south of Dobbins. 479 Comment
  CHSC76291  Persicaria punctata Lowell Ahart 1999-9-17 8243 Yuba On the margins of a rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  JEPS124320  Persicaria punctata Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20640 Yuba Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  UCD99789  Persicaria punctata G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12826 Yuba Northern Sierra Nevada Mountains Foothills: Mountain House Road 0.6 mile west of the county line. Sleighville area beside Willow Creek. 1021 Comment
  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
  UC572502  Petrorhagia dubia H. S. Yates 1933-5-23 3616 Yuba two mi ne Spenceville; Smartsville Quad. 304 Comment
  UCD37844  Petrorhagia dubia Beecher Crampton 1962-4-24 6241 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD37858  Petrorhagia dubia Beecher Crampton 1962-4-24 6264 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD37867  Petrorhagia dubia Beecher Crampton 1962-4-24 6283 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCR169013  Petrorhagia dubia David Charlton 2005-5-16 8001 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
  SEINET5337379  Petrorhagia dubia M. Dailey 1959-4-24 s.n. Yuba Rough and Ready, California, just off highway 20. 732 Comment
  UCD98374  Petrorhagia dubia Mary Anne Brayton 1964-5-2 22 Yuba Harry L. Englebright Dam, State Highway 20, 20 miles northwest of Marysville. 182 Comment
  UCD98394  Petrorhagia dubia Barbara Yungert 1974-4-12 24 Yuba Along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  CHSC68480  Phacelia cicutaria var. cicutaria Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7726 Yuba On the bank of the Browns Valley Water Ditch, north of the poor dirt road, south of Dry Creek, about 1 1/4 miles east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 198 Comment
  JEPS94319  Phacelia cicutaria var. cicutaria Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7726 Yuba about 17 mi ne of Marysville (on bank of Browns Valley Water Ditch, n of the poor dirt road, s of Dry Creek, about 1 1/4 mi e of Scott Forbes Road (Long Bar Road)); Browns Valley Water Ditch 198 Comment
  UC1069332  Phacelia cicutaria var. cicutaria M. A. Elvin 1933-6-7 26 Yuba 4 mi sw Courtney Creek; Smartsville Quadrangle Comment
  UCD120315  Phacelia cicutaria var. cicutaria Kathleen Keliher 1975-4-1 52 Yuba Along four wheel drive road, one quarter of a mile from picnic area, H 8 - 11 project area, Sierra Foothill Field Station. 152 Comment
  UCR194904  Phacelia hastata var. compacta George K. Helmkamp, E. A. Helmkamp 2007-5-26 12143 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
  UCR196980  Phacelia hastata var. compacta George K. Helmkamp, E. A. Helmkamp 2008-5-20 13465 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  RSA10981  Phacelia humilis var. humilis Carl B. Wolf 1927-11-5 1440 Yuba Eight miles from Marysville on road to Browns Valley. Comment
  CHSC8261  Phalaris aquatica J. G. Moore 1969-5-4 35 Yuba Hwy. 20, 300 yds. w of 7 mi. House on s side of road growing in ditch next to rice fields. [Label incorrectly says Nevada County]. 91 Comment
  UCD88331  Phalaris aquatica Barbara Yungert 1974-5-9 G- 6 Yuba Sierra Foothill Field Station. Along Road 1, near P 1-13 fence, W of Porter Hill. Comment
  CHSC96991  Phalaris arundinacea L. P. Janeway; Lowell Ahart, Linnea Hanson 2007-7-13 9117 Yuba Northern High Sierra Nevada. Plumas National Forest; Hampshire Creek meadow, 1.5 air km east of Clipper Mills and 1.8 air km northwest of North Yuba River. Just east of the road crossing the meadow. 1026 Comment
  CHSC97679  Phalaris minor Lowell Ahart 2007-5-14 13843 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  UCD89371  Phalaris paradoxa Beecher Crampton 1957-6-5 4145 Yuba 1/2 mile W of Oregon House Post Office. Comment
  CAS-BOT-BC72715  Philadelphus lewisii Rimo Bacigalupi 1927-7-2 1594 Yuba highway to Downieville about 8 miles northeast of Camptonville Comment
  UCR194907  Philadelphus lewisii George K. Helmkamp, E. A. Helmkamp 2007-5-26 12130 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville 802 Comment
  RSA0059870  Philadelphus lewisii R. C. Bacigalupi 1927-7-2 1594 Yuba Highway to Downieville about 8 mi NE of Camptonville. Comment
  SEINET3131071  Philadelphus lewisii var. californicus L. S. Rose 1939-6-7 39237 Yuba N Fork of Feather River, 3 mi. S of Pulga 610 Comment
  JEPS71087  Phlox gracilis Willis L. Jepson 1892-4-9 15052 Yuba Smartsville Comment
  UCD118251  Phlox speciosa R. O. Hanes 1992-4-1 45 Yuba Plumas Forest. 731 Comment
  UCD118252  Phlox speciosa Kathleen Keliher 1975-5-30 118 Yuba Near New York Flat Road, just west of Forbestown. 822 Comment
  JEPS18171  Phlox speciosa subsp. occidentalis Rimo Bacigalupi with G. T. Robbins and F. Chisaki 1956-4-19 5621 Yuba 1 mi n Dobbins (0.4 mi s of Dobbins Ranger Station, along road from Oregon House to Dobbins) 571 Comment
  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
  SEINET777080  Phoradendron juniperinum James E Canright 1957-8-23 714 -a Yuba Sierra Nevada Mountains near Bullards Bar Resevoir, ca. 25 mi ESE of Oroville 914 Comment
  CHSC69143  Phytolacca americana Lowell Ahart 1997-8-7 7820 Yuba On the east side of a small stream, a branch of Little Oregon Creek, on the south side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  CHSC43412  Pickeringia montana Lowell Ahart 1975-6-25 812 Yuba Near the Brownsville dump, about 2 miles west of Brownsville. 487 Comment
  CAS-BOT-BC76954  Pilularia americana Lowell Ahart 1977-9-25 s.n. Yuba 2 miles northeast of Marysville, Sam Shintaffer Farm. 35 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
  JEPS113775  Pilularia americana Lowell Ahart 2007-5-12 13765 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  HSC1544  Pinus sabiniana R. A. Magie 1964-3-27 18 Yuba 15 mi. W of Grass Valley on Hwy. 20 Comment
  UCD135105  Pinus sabiniana Barbara Yungert 1974-6-5 192 Yuba Sierra Foothill Field Station. Comment
  CHSC71406  Piperia transversa Lowell Ahart 1998-7-19 8051 Yuba On the north side of the dirt road, about 3/4 mile southeast of Woodleaf. 960 Comment
  SD237382  Plagiobothrys David Charlton 2005-5-16 8012 Yuba Sacramento Valley: Yuba Gold Field; just S of Yuba River; ca. 7.5 miles ENE of Marysville; N of Beale Air Force Base; Survey area ca. 2 mi by 1 mi (Browns Valley 7.5'Q) 35 Comment
  CAS-BOT-BC228044  Plagiobothrys Gordon H. True 1963-4-17 1176 Yuba About 10 miles E of Marysville, on Marysville-Grass Valley Highway 30 Comment
  UCD37880  Plagiobothrys Beecher Crampton 1962-4-24 6304 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD37887  Plagiobothrys Beecher Crampton 1962-4-24 6313 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  SBBG33961  Plagiobothrys bracteatus L. S. Rose 1967-6-13 67128 Yuba Camp Far West Reservoir, 7 mi NE of Wheatland 121 Comment
  SJSU5649  Plagiobothrys bracteatus L. S. Rose 1967-6-13 67128 Yuba Camp Far West Reservoir 7 mi NE of Wheatland 121 Comment
  UCD120784  Plagiobothrys bracteatus Barbara Yungert 1974-5-7 127 Yuba Forbes Hill, F1-14 project area, Sierra Foothill Field Station. Comment
  CHSC59517  Plagiobothrys fulvus H. E. Mac Lennan 1992-4-15 20 Yuba 20 air miles se of Oroville. 518 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
  UCR232228  Plagiobothrys fulvus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17212 Yuba Eastern edge of Sacramento Valley, Camp Far West Road, 1.3 miles southeast of its junction with Spenceville Road, 5.25 mi. NE (52 deg. ) of Wheatland 62 Comment
  RSA726777  Plagiobothrys glyptocarpus L. Ahart 2007-4-17 13682 Yuba Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5.5 miles (air) northeast of Loma Rica. 293 Comment
  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
  CHSC97456  Plagiobothrys glyptocarpus var. glyptocarpus Lowell Ahart 2007-5-12 13780 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  SEINET10910078  Plagiobothrys glyptocarpus var. glyptocarpus Lowell Ahart 2007-4-17 Ahart 13682 Yuba T17N, R5E, northeast 1/4 Section 13. Normal size plants, on dry rocky soil, along a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. Foothill Woodland. 293 Comment
  RSA0115337  Plagiobothrys greenei George K. Helmkamp, E. A. Helmkamp 2011-4-10 17167 Yuba Sacramento Valley: along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland. 44 Comment
  SEINET7075552  Plagiobothrys greenei A. G. Vestal 1955-4-4 s.n. Yuba About 9 miles northeast of Marysville on Route 20. 39? deg. 13' 38" North Latitude, -121? deg. 24' 51" West Longitude. UTM Zone 10, 636890mE, 4342994mN. (NAD 27)]. [Coordinate Datum: WGS84/NAD83]. Comment
  CHSC46764  Plagiobothrys hispidulus Lowell Ahart 1980-8-12 2569 Yuba On a gravel bar across Slate Creek, west of Gold Run Creek, east of Onion Creek, about 7 miles south of La Porte. 1158 Comment
  UCD120935  Plagiobothrys nothofulvus Barbara Yungert 1974-4-4 2 Yuba Along four wheel drive road, north of Yuba River, Sierra Foothill Field Station. Comment
  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
  HSC100755  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2011-6-7 17387 Yuba 150 yd. W of S end of Parks Bar Bridge (Hwy. 20), 15 (air) mi. NE of Marysville. 66 Comment
  JEPS103277  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2002-6-3 9688 Yuba Bottom of pond spillway, second small man made pond, ca 1/4 mile south of Long Ravine Road, ca 1/8 mile east of the intersection of Camp Far West Road and Long Ravine Road, north of Camp Far West Reservoir 102 Comment
  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
  SBBG121519  Plagiobothrys stipitatus var. micranthus L. Ahart 2007-5-12 13779 Yuba 400 yds N of Fruitland Rd, ca. 13 mi NE of Marysville 28 Comment
  SEINET13203148 Image available Plagiobothrys stipitatus var. micranthus George K. Helmkamp, Amy Barnes 2013-1 20250 Yuba Eastern Sacramento Valley: northbound exit road from CA-65, connecting with Forty Mile Road (Olivehurst 7.5' Q.) 30 Comment
  SEINET7072716  Plagiobothrys stipitatus var. micranthus A. G. Vestal 1963-5-7 s.n. Yuba About 1.7 miles west of Honcut on the Lower Honcut Road. UTM Zone 10, 623885E, 4353199mN. Coordinate datum: NAD 27. Comment
  SEINET7072717  Plagiobothrys stipitatus var. micranthus A. G. Vestal 1963-5-7 s.n. Yuba About 3.5 miles northwest of Wheatland on the Southern Pacific Road. UTM Zone 10, 632638E, 4322465mN. Coordinate datum: NAD 27. Comment
  UCR258235  Plagiobothrys stipitatus var. micranthus George K. Helmkamp, Amy Barnes 2013-3-28 20250 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  CHSC68472  Plagiobothrys tenellus Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7735 Yuba Along the south side of Dry Creek, north of the poor dirt road, about 1 mile east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 121 Comment
  JEPS94324  Plagiobothrys tenellus Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7735 Yuba about 17 mi ne of Marysville ( along s side of Dry Creek, n of the poor dirt road, about 1 mi e of Scott Forbes Road (Long Bar Road)); Dry Creek 121 Comment
  JEPS113412  Plantago coronopus Lowell Ahart 2007-5-12 13801 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  UCSC008273  Plantago elongata Lowell Ahart 2007-5-12 13802 Yuba About 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC45085  Plantago erecta Barbara Yungert 1973-5-3 109 Yuba West of road near cattle guard and U. C. sign, west of station, Sierra Foothill Field Station. Comment
  CHSC96871  Plantago lanceolata Lowell Ahart 2007-6-30 14231 Yuba Near a new ditch, near and east of a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC97493  Plantago lanceolata Lowell Ahart 2007-5-14 13867 Yuba Along the dirt road, near the power tower, power tower is about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  RSA726804  Plantago lanceolata L. Ahart 2007-6-30 14231 Yuba Near a new ditch, near and east of a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  JEPS117430  Platanthera leucostachys Lowell Ahart 2010-7-27 16918 Yuba Along small streams in the meadow, on the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam 1219 Comment
  JEPS95419  Platanthera leucostachys Lowell Ahart 1994-6-27 7390 Yuba 4 mi NE of Strawberry Valley (near the SE side of Schwartz Meadow, on the E side of La Porte Road) 1219 Comment
  UCD82075  Platystemon californicus Robin McMaster 1973-4-7 221 Yuba Browns Valley, Peoria Cemetery. Comment
  UCD37882  Plectritis ciliosa Beecher Crampton 1962-4-24 6306 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD137572  Plectritis ciliosa Kathleen Keliher 1975-4-11 57 Yuba along dirt road, ca. 1 mile from picnic area, F-2 project area, Sierra Foothill Field Station. 152 Comment
  UCD137588  Plectritis ciliosa Barbara Yungert 1974-4-16 41 Yuba Campbell Valley, Sierra Foothill Field Station. Comment
  JEPS113470  Poa annua Lowell Ahart 2007-5-12 13826 Yuba Along the dirt road and about 20 yards northwest of the gate, about 20 yards south of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  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
  CHSC112127  Poa pratensis subsp. angustifolia L. P. Janeway; James Nixon, Eduardo Gonzales 2014-6-2 11428 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow opening just northeast of Little Oregon Creek and 0.2 km east of Oregon Hill Road; 7.3 air-km southeast of Challenge. 625 Comment
  JEPS121795  Poa pratensis subsp. angustifolia L. P. Janeway, James Nixon, Eduardo Gonzales 2014-7-2 11428 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow opening just northeast of Little Oregon Creek and 0.2 km east of Oregon Hill Road; 7.3 air-km southeast of Challenge. 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
  CHSC97633  Pogogyne zizyphoroides Lowell Ahart 2007-5-12 13797 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCSC008274  Pogogyne zizyphoroides Lowell Ahart 2007-5-12 13797 Yuba 28 Comment
  RSA0022175  Pogogyne zizyphoroides J. T. Howell 1967-6-13 3556 Yuba ca. 5 miles E of Wheatland and 1 mile N of Bear River. 55 Comment
  CDA14566  Polygala cornuta G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3044 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  CHSC43322  Polygala cornuta Lowell Ahart 1977-7-31 1506 Yuba On the banks of a stream, about 1 mile south of Challenge. 640 Comment
  CAS-BOT-BC170376  Polygala cornuta var. cornuta Lowell Ahart 1977-7-31 156 Yuba About one mile south of Challenge 700 Comment
  JEPS94513  Polygala cornuta var. cornuta Lowell Ahart 1997-8-7 7811 Yuba about 3 air mi se of Challenge (on n side of the dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  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
  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
  RSA97517  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
  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
  CHSC45470  Polygonum parryi Lowell Ahart 1980-8-12 2541 Yuba Growing on a large gravel bar that is formed from a debris dam across Slate Creek, a little below where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  CHSC73978  Polygonum parryi B. Castro; Gail Kuenster 1994-9-30 553 Yuba Ca. 4.5 air mi due E of Strawberry Valley, in old Road's End 2 gold mine site at end of USFS Rd 20N12. 1170 Comment
  JEPS95857  Polygonum persicaria Lowell Ahart 1999-9-17 8242 Yuba south of Woodruff Lane; just east of Mathews Road; east of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  RSA10979  Polygonum persicaria Carl B. Wolf 1927-11-5 1438 Yuba Eight miles from Marysville on road to Browns Valley. Comment
  CHSC97629  Polygonum polygaloides subsp. confertiflorum Lowell Ahart 2007-5-14 13853 Yuba Bottom of swales, about 100 yards east of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville. 29 Comment
  JEPS113400  Polygonum polygaloides subsp. confertiflorum Lowell Ahart 2007-5-14 13853 Yuba Bottom of swales, about 100 yards east of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville 29 Comment
  SEINET13710837  Polygonum punctatum Lowell William Ahart, Lowell William Ahart 1999-1 8243 Yuba 5 Air Mi. NE of Marysville Comment
  CHSC108217  Polypogon australis Lowell Ahart 2011-6-7 17428 Yuba East of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS118308  Polypogon australis Lowell Ahart 2011-6-7 17428 Yuba East of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  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
  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
  CHSC78226  Polypogon maritimus Lowell Ahart 2000-6-11 8465 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
  CHSC97440  Polypogon monspeliensis Lowell Ahart 2007-5-14 13882 Yuba Dry red bare soil, on the bottom of a swale, about 250 yards west of the power tower, power tower is about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  RSA726565  Polypogon monspeliensis L. Ahart 2007-5-14 13882 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  UCD91224  Polypogon monspeliensis A. A. Beetle 1941-6-26 2734 Yuba Near Marysville. Comment
  UCD91415  Polypogon monspeliensis Barbara Yungert 1974-5-9 G- 9 Yuba Near ald spring runoff, F 1-43 project area, Sierra Foothill Field Station. Comment
  CHSC116295  Polystichum imbricans subsp. curtum Lowell Ahart 2015-10-23 20580 Yuba On west side of road to Slate Creek, about 1/4 mile southwest of Slate Creek Dam, about 2 miles (air) northeast of La Porte Road, about 6 1/4 miles (air) southwest of La Porte. 1119 Comment
  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
  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
  JEPS115071  Polystichum munitum Lowell Ahart 2007-11-1 14530 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  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-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
  CDA18955  Potamogeton illinoensis E. Finley, Koschnick 2000-6-14 PDR 1013548 Yuba Yuba County irrigation canal, Oregon House. 0 Comment
  CHSC96981  Potamogeton natans Lowell Ahart 2007-8-7 14413 Yuba Hampshire Creek Meadow, about 5 yards west of the dirt road, about 1 mile (air) east of Clipper Mills. In shallow water, on the east side of a small pond, on the west side of the dirt road. 1021 Comment
  CAS-BOT-BC453843  Potamogeton nodosus W. V. Middlekauff 1960-6-19 s.n. Yuba 3 miles n.w. of Rio Oso Post Office Comment
  JEPS103560  Potamogeton pusillus var. pusillus Lowell Ahart 2002-6-3 9687 Yuba Man made pond, ca 1/4 mile S of Long Ravine Road, ca 1/8 mile E of the intersection of Camp Far West Road and Long Ravine Road there is a poor Texas gate on the S side of the road, N of Camp Far West Reservoir. 106 Comment
  UCR196991  Potentilla glandulosa subsp. reflexa George K. Helmkamp, E. A. Helmkamp 2008-5-20 13461 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  CHSC63165  Potentilla gracilis var. fastigiata Lowell Ahart 1994-6-27 7382 Yuba Along a stream, east of the logging road, east of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  CHSC113663  Poterium sanguisorba L. P. Janeway 2014-5-12 11249 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  JEPS100271  Prunus subcordata Dean W. Taylor 2001-5-9 17644 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  UC1128490  Prunus subcordata G. Burks 1933-7-26 14 Yuba 1 mi s of Camptonville (Tahoe National Forest); Tahoe National Forest 822 Comment
  CHSC113675  Pseudognaphalium californicum L. P. Janeway 2014-6-24 11417 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 2.1 air km south-southwest of Oregon Peak, 0.2 km north of Marysville Road. 762 Comment
  UC1118479  Pseudognaphalium californicum M. A. Elvin 1933-7-6 41 Yuba 2.5 mi w of Bridgeport; Smartsville Quadrangle 304 Comment
  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
  CHSC113182  Pseudognaphalium luteoalbum Lowell Ahart 2013-11-30 19310 Yuba On north side of Dry Creek, below the high water line of Collins Lake, about 300 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 354 Comment
  JEPS118090  Pseudognaphalium luteoalbum Lowell Ahart 2011-6-7 17376 Yuba West of a willow shrub, Just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  JEPS124145  Pseudognaphalium luteoalbum Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20636 Yuba Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CAS-BOT-BC356991  Pseudognaphalium luteoalbum Lowell Ahart 1980-6-19 2401 Yuba 3 miles south-east of Challenge 800 Comment
  CHSC69412  Pseudognaphalium thermale Lowell Ahart 1997-8-30 7881 Yuba On the west side of the dirt road, near a road culvert, about one mile (air) south of Woodleaf. 944 Comment
  SEINET7072978  Psilocarphus brevissimus A. G. Vestal 1963-5-29 s.n. Yuba At 99 East and Beale Road [Presently 99 & Camp Beale Road]. UTM Zone 10, 622422mE, 4331929mN. Coordinate datum: NAD27). Comment
  CAS-BOT-BC361737  Psilocarphus brevissimus var. brevissimus John Thomas Howell; Gordon H. True 1971-5-26 47608 Yuba About 8 miles east of Marysville 30 Comment
  CAS-BOT-BC361867  Psilocarphus oregonus John Thomas Howell; Gordon H. True 1971-5-26 47609 Yuba About 8 miles east of Marysville 30 Comment
  CAS-BOT-BC361914  Psilocarphus tenellus Lowell Ahart 2007-5-12 13773 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  CAS-BOT-BC72530  Pteridium aquilinum Lowell Ahart 1979-6-3 s.n. Yuba 1 mile S of Challenge 700 Comment
  CAS-BOT-BC72537  Pteridium aquilinum John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54077 Yuba About 2 miles northeast of Dobbins on Oregon Hill Road in Transition Zone Forest 701 Comment
  CHSC97461  Pteridium aquilinum var. pubescens Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-9-18 14500 Yuba Under trees, Hampshire Creek Meadow, about 80 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. 1015 Comment
  UCR196996  Pteridium aquilinum var. pubescens George K. Helmkamp, E. A. Helmkamp 2008-5-20 13488 Yuba Foothills, northern Sierra Nevada Mountains, Camptonville, at the junction of Henness Pass Road and CA-49 823 Comment
  UCR206953  Pteridium aquilinum var. pubescens George K. Helmkamp, E. A. Helmkamp 2009-5-28 14825 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 Comment
  SEINET7085243  Pterospora andromedea Steven R. Hill 2010-7-17 38554 Yuba Along La Porte Road, 950 feet northeast of Travis Saddle and the road to Sly Creek Reservoir Dam. 13.6 kilometers north-northwest of Camptonville. Just southwest of Strawberry Valley Sierra Nevada. Coordinate Datum: WGS84/NAD83. 1103 Comment
  CHSC90343  Pterostegia drymarioides Lowell Ahart 2005-3-11 11617 Yuba Large rock outcrop, south slope, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 395 Comment
  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-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
  CAS-BOT-BC86018  Quercus X morehus Carl B. Wolf 1930-10-12 1739 Yuba along the Yuba River near bridge on Browns Valley to Smartville Road 152 Comment
  UCD47014  Quercus X morehus H. H. Keifer 1953-10-11 s.n. Yuba Tree at lake near Dobbins, Yuba County, California. Comment
  UC1135527  Quercus berberidifolia M. A. Elvin 1933-7-7 34 Yuba 1.5 mi s Virginia Ranch; Smartsville Quad. 457 Comment
  UCD82667  Quercus chrysolepis Rodney Gale Myatt 1971-11-1 1524 -1 Yuba Oregon Creek-Middle Fork Yuba River. Yuba River where smaller Oregon Creek is confluent. 640 Comment
  UCD82668  Quercus chrysolepis Rodney Gale Myatt 1973-7-1 1592 -14 Yuba Bullard's Bar Dam. 550 Comment
  UCD82669  Quercus chrysolepis Rodney Gale Myatt 1973-7-1 1592 -9 Yuba Bullard's Bar Dam. 550 Comment
  SBBG29998  Quercus douglasii C. B. Wolf 1930-10-12 1739 Yuba Yuba River on the Browns Valley-Smartsville Rd 152 Comment
  UCD45764  Quercus douglasii Beecher Crampton 1963-9-9 6877 Yuba 2.5 miles n.n.w. Smartsville, 5 miles east of Brown's Valley. UC. Sierra Foothill Field Station. Comment
  JEPS88904  Quercus durata Lowell Ahart 1994-6-5 7306 Yuba about 3 (air) mi e Forbestown (on the n side of Forbestown road, on the n side of Costa Creek); Costa Creek, Forbestown road 853 Comment
  SEINET10937811  Quercus durata Mary Susan Taylor, L. Hanson Taylor 3466 Yuba T19N R7E se section 7; Clipper Mills quad. N side of Forbestown-Woodleaf Rd, ca. 3/4 mi E of its jct with Forbestown Rd, ca. 2 mi W of Woodleaf. Open reddish weathered serpentine area; 2800 ft. 853 Comment
  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
  CHSC47426  Quercus durata var. durata Lowell Ahart 1976-7-11 999 Yuba Near the intersection of Forbestown Road and Abernathy Road, about 3 miles north of Challenge. 853 Comment
  JEPS113300  Quercus garryana L. P. Janeway 2006-5-24 8618 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way 1.6 road km north of La Porte Road and Brownsville. Comment
  CDA22094  Quercus kelloggii H. H. Keifer 1953-10-11 Yuba One mile north of Oregon House. 0 Comment
  JEPS113099  Quercus kelloggii Lowell Ahart 2007-4-17 13685 Yuba On the north side of the poor dirt fireguard, about 50 yards northwest of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  UCD46660  Quercus kelloggii Barbara Yungert 1974-6-5 197 Yuba East Road 4, L 1-21 project area, Sierra Foothill Field Station, Yuba County, California. Comment
  UCD46814  Quercus lobata Barbara Yungert 1974-6-5 195 Yuba Along Porter Creek, south of station headquarters, Sierra Foothill Field Station, Yuba County, California. Comment
  CAS-BOT-BC94996  Quercus wislizeni R. C. Wenk 2008-7-18 978 Yuba 5 mi. from Highway 20 going east from Marysville, along Peoria and Scott Forbes Roads 204 Comment
  CHSC78161  Ranunculus aquatilis var. aquatilis Lowell Ahart 2000-6-11 8466 Yuba On the bottom of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  RSA0019380  Ranunculus bonariensis var. trisepalus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17205 Yuba junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 ) of Wheatland. 56 Comment
  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
  UCD95968  Ranunculus californicus W. R. Powell 1968-4-24 1478 Yuba along Peoria Road, 4 miles northeast of Browns Valley. 158 Comment
  UCR118900  Ranunculus canus Beecher Crampton 1962-4-24 6307 Yuba Central Sierra Nevada foothills, University of California Foothill Field Station, 5 miles east of Brown's Valley, 2.5 miles NNW of Smartville 366 Comment
  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
  UCR230633  Ranunculus muricatus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17200 Yuba East edge of Sacramento Valley, Spenceville Road, 4.2 miles northwest of Wheatland 55 Comment
  UCD96262  Ranunculus muricatus Barbara Yungert 1974-4-10 15 Yuba Sieera Foothill Field Station. West of station headquarter, SC-5 project area. Comment
  JEPS97387  Ranunculus occidentalis Lowell Ahart 1994-7-27 7373 Yuba about 4 mi ne Strawberry Valley (e side of La Porte Rd, in about center of meadow); Schwartz Meadow 1219 Comment
  UCR257543  Ranunculus occidentalis George K. Helmkamp 2014-4-17 22761 Yuba Sierra Nevada Foothills, Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville 264 Comment
  SEINET7042654  Ranunculus occidentalis A. G. Vestal 1963-5-30 s.n. Yuba A meadow 3.9 miles south of Brownsville. Rackerby quadrangle UTM Zone 10, 641137mE, 4361952mN. Comment
  UCD96786  Ranunculus occidentalis R. O. Hanes 1991-5-21 16 Yuba Yuba County, Rd 18N77 or 121. Tahoe Forest. 579 Comment
  UCD96793  Ranunculus occidentalis R. O. Hanes 1992-4-6 48 Yuba Plumas Forest. 731 Comment
  UCD96939  Ranunculus occidentalis W. R. Powell 1968-4-22 1477 Yuba along Peoria Road, 4 miles northeast of Browns Valley. 158 Comment
  UCD96949  Ranunculus occidentalis Barbara Yungert 1974-4-4 3 Yuba Sierra Foothill Field Station. Along dirt road north of Yuba River, F-2 project area. Comment
  RSA21294  Ranunculus occidentalis var. eisenii Carl B. Wolf 1937-5-13 8639 Yuba Sierra Nevada Foothills, 2.7 miles below Stanfield Hill on road to Browns Valley. 183 Comment
  CHSC45407  Ranunculus occidentalis var. occidentalis Lowell Ahart 1973-5-6 216 Yuba Near Challenge. 762 Comment
  SEINET7042653  Ranunculus orthorhynchus A. G. Vestal 1963-5-30 s.n. Yuba A meadow 3.9 miles south of Brownsville. Rackerby quadrangle UTM Zone 10, 641137mE, 4361952mN. Comment
  CHSC45408  Ranunculus pusillus Lowell Ahart 1978-4-21 1658 Yuba Along the edge of a rice field, on the Sam Shintaffer Farm, west of Kimball Lane, about 2 miles north-east of Marysville. 30 Comment
  SEINET1908657  Raphanus raphanistrum G. K. Helmkamp, E. A. Helmkamp 2008-1 14211 Yuba Sacramento Valley: Ostroom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst. 20 Comment
  UCR201738  Raphanus raphanistrum George K. Helmkamp, E. A. Helmkamp 2008-10-6 14211 Yuba Sacramento Valley, Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  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
  CHSC113645  Rhamnus ilicifolia L. P. Janeway 2014-5-12 11250 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  OBI5939  Rhamnus ilicifolia Carl B. Wolf 1927-11-6 1449 Yuba Browns Valley to Smartsville rd, along left bank of Yuba river, near bridge 152 Comment
  RSA7795  Rhamnus ilicifolia Carl B. Wolf 1927-11-6 1449 Yuba Along the Yuba River near bridge on the Browns Valley to Smartsville Road. Comment
  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
  UC592763  Rhamnus ilicifolia unknown 1927-11-6 1449 Yuba Browns Valley to Smartsville road (along left bank of Yuba River, near bridge); Yuba River 152 Comment
  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
  RSA12713  Rhamnus rubra subsp. obtusissima Carl B. Wolf 1934-10-4 6154 Yuba Texas Hill, 2 miles from Dobbins. 457 Comment
  CHSC96589  Rhamnus tomentella subsp. tomentella L. P. Janeway 2006-5-24 8625 Yuba Northern Sierra Nevada Foothills. Along east side of Ponderosa Way 1.3 road km north of La Porte Road and Brownsville. 686 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
  RSA742591  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1930-10-12 1738 Yuba Along the Yuba River near Hammondon 152 Comment
  UC592796  Rhamnus tomentella subsp. tomentella unknown 1927-11-6 1447 Yuba Brownsville Valley to Smartsville road (along left bank of Yuba River, near bridge); Yuba River 152 Comment
  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
  CAS-BOT-BC199726  Rhododendron occidentale Beecher Crampton 1966-6-14 7740 Yuba 1 mile east of Brownsville, La Porte road 731 Comment
  CHSC112069  Rhododendron occidentale L. P. Janeway 2014-8-26 11573 Yuba Northern High Sierra Nevada. Plumas National Forest; about 50 m east of Oregon Hill Road, about 1 km south of Little Oregon Creek; 8 air-km southeast of Challenge. Comment
  UC566050  Rhododendron occidentale M. A. Elvin 1933-7-14 53 Yuba Greenville 762 Comment
  CAS-BOT-BC199743  Rhododendron occidentale var. paludosum Lloyd W. Swift 1932-5-9 64 Yuba Plumas National Forest. S. of Challenge 762 Comment
  UC1130561  Rhus trilobata M. A. Elvin 1933-8-7 45 Yuba 2 mi n Oregon House 457 Comment
  CHSC83428  Rhynchospora capitellata Virginia Dains 1996-7-30 Yuba South of forest road 20N25 in a meadow. 1097 Comment
  JEPS127617  Rhynchospora capitellata L. P. Janeway 2015-7-1 11796 Yuba Plumas National Forest; Headwaters of Cottage Creek, one of a series of meadows; 0.15 km SW of Oregon Hill Road, 1.3 air km NE of Oregon Peak. Comment
  SEINET5339726  Ribes nevadense B. M. Cunningham 1960-5-15 s.n. Yuba Along the Feather River Canyon on highway 40 alt. four miles west of Beldon, CA. 457 Comment
  UC1127537  Ribes roezlii M. A. Elvin 1933-7-10 47 Yuba 2 mi s Brownsville; Smartsville Quadrangle Comment
  UCD102460  Ribes roezlii Kathleen Keliher 1975-5-6 87 Yuba Along Forbestown Road, 100 feet from La Porte Road, 1 mile east of Woodleaf. 929 Comment
  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
  JEPS103275  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2002-6-3 9690 Yuba On the bottom of the pond spillway, second small man made pond, about 1/4 mile south of Long Ravine Road, about 1/8 mile east of the intersection of Camp Far West Road and Long Ravine Road, north of Camp Far West Reservoir. 102 Comment
  JEPS110504  Rorippa curvisiliqua var. occidentalis Robert E. Preston 1997-10-29 1057 Yuba Beale Air Force Base, E of Golf Course. 39 Comment
  CHSC81771  Rorippa curvisiliqua var. orientalis Lowell Ahart 2001-11-2 9397 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  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
  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
  CAS-BOT-BC74802  Rorippa palustris var. palustris Lowell Ahart 1977-8-31 s.n. Yuba Sam Shintaffer Farm, 2 miles northeast of Marysville. 30 Comment
  CHSC113651  Rosa bridgesii L. P. Janeway 2014-5-20 11256 A Yuba Northern High Sierra Nevada. Plumas National Forest; 1.9 air-km southeast of Pike County Peak, 4.1 air-km southeast of Challenge; near Road 29N38. 928 Comment
  CHSC113652  Rosa bridgesii L. P. Janeway 2014-5-20 11256 B Yuba Northern High Sierra Nevada. Plumas National Forest; 1.9 air-km southeast of Pike County Peak, 4.1 air-km southeast of Challenge; near Road 29N38. 928 Comment
  CHSC115285  Rosa bridgesii Lowell Ahart 2015-4-30 20124 Yuba Open forest, on the north side of the gravel road, about 30 yards northeast of the gate, about 3/4 mile (air) southeast of Woodleaf. 948 Comment
  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
  JEPS104088  Rosa bridgesii Lowell Ahart 2003-7-2 10342 Yuba About 200 yd south of the 4-H Camp, on the w side of Oregon Hill Rd, ca 1/2 mi n of Marysville Rd, ca 2 mi (air) ne of Dobbins. 815 Comment
  JEPS105833  Rosa bridgesii Lowell Ahart 2004-4-27 10762 Yuba Near large wide trail, start of small drainage, drainage crosses water ditch and continues on and crossed road, ca. 350 yd NW of the road, serpentine area, ca. 40 yd SW of the marker for sections 9, 10, 16, & 15, ca. 1/2 mi (air) SE of Woodleaf 1012 Comment
  UCD113387  Rosa bridgesii Kathleen Keliher 1975-5-30 119 Yuba Along New York Flat Road, W of Forbestown. 822 Comment
  JEPS124105  Rosa californica Lowell Ahart, Susan Kephart, Jim Kephart 2015-6-4 20196 Yuba About 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. Comment
  CHSC110458  Rosa canina L. P. Janeway 2013-7-2 11181 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, one of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. 815 Comment
  JEPS120549  Rosa canina L. P. Janeway 2013-7-2 11181 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, one of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. Comment
  UCD113397  Rosa canina Barbara Yungert 1974-5-16 157 Yuba Sierra Foothill Field Station. North of road near irrigation ditch, SC-13 project area. Comment
  CDA14574  Rosa gymnocarpa G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3055 Yuba La Porte _ Quincy Road 3.6 miles northeast of Strawberry Valley at the Plumas county line. 1280 Comment
  CHSC69153  Rosa gymnocarpa Lowell Ahart 1997-8-7 7817 Yuba On the bottom of a stream, a branch of Little Oregon Creek, on the west side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  JEPS102388  Rosa gymnocarpa Lowell Ahart 2001-8-2 9051 Yuba On the south edge of the dirt road, Peterson Ridge Road, about 2 miles NE of Oregon Hill Road, about 3 miles (air) SE of Challenge. 701 Comment
  SJSU10220  Rosa gymnocarpa C. W. Sharsmith 1983-6-8 8801 Yuba Oak Flat Rd near Union Hill 1371 Comment
  CAS-BOT-BC148328  Rosa pisocarpa Alice Eastwood 1921-5-22 10569 Yuba Los Vergils Comment
  JEPS95416  Rosa pisocarpa subsp. ahartii Lowell Ahart 1994-6-27 7383 Yuba 4 mi NE of Strawberry Valley (E of the logging road E of Schwartz Meadow, E side of La Porte Road) 1219 Comment
  CHSC115894  Rosa rubiginosa L. P. Janeway 2015-6-30 11788 Yuba Northern High Sierra Nevada. Plumas National Forest; Weiss Hill Meadow, a large meadow 600 air-km east-southeast of junction of Weiss Hill Road and Forbestown Road; at the head of a minor northwestern tributary to New York Creek. 853 Comment
  JEPS127624  Rosa rubiginosa L. P. Janeway 2015-6-30 11788 Yuba Northern High Sierra Nevada. Plumas National Forest; Weiss Hill Meadow, a large meadow 600 air-km east-southeast of junction of Weiss Hill Road and Forbestown Road; at the head of a minor northwestern tributary to New York Creek. Forbestown 7.5' Quad. Comment
  CHSC116312  Rotala indica Lowell Ahart 2015-11-19 20686 Yuba 100 yards or more north of the spillway area, below the high water line, west side of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  CHSC47445  Rotala indica Lowell Ahart 1977-10-3 1595 Yuba Growing on the bottom of a deep irrigation ditch, Sam Shintaffer Farm, about 2 miles north-east of Marysville. 30 Comment
  SD130473  Rotala indica Lowell Ahart 1977-8-31 Yuba 2.0 miles northeast of Marysville; Sam Shintaffer Farm. 29 Comment
  SFV8306  Rotala indica J. F. Williams 1974-10-8 s. n. Yuba Sacramento Valley Rice field (Henry Taylor grower) on Tanabe Road, northeast of Marysville. 25 Comment
  CHSC76284  Rotala ramosior Lowell Ahart 1999-9-17 8246 Yuba On the margins of a rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  SEINET13710396  Rotala ramosior Lowell William Ahart, Lowell William Ahart 1999-1 8246 Yuba 5 Air Mi NE Marysville Comment
  JEPS118292  Rubus discolor Lowell Ahart 2011-6-7 17410 Yuba Along the edge of the dirt road, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CAS-BOT-BC147166  Rubus laciniatus Lowell Ahart 1980-6-19 2398 Yuba 3 miles south-east of Challenge 800 Comment
  JEPS94625  Rubus laciniatus Lowell Ahart 1997-8-7 7815 Yuba Peterson Ridge Rd. about 3 air mi se Challenge (w side of dirt road, on bottom of small stream, a branch of Little Oregon Creek) 762 Comment
  SEINET3016174  Rubus laciniatus L. Ahart 1997-8-7 7815 Yuba On the bottom of a small stream, a branch of Little Oregon Creek, on the Wside of the dirt road, Peterson Ridge Rd., about 3 mi (air) SE of Challenge. 762 Comment
  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
  CHSC106051  Rubus ursinus Lowell Ahart 2010-7-27 16923 Yuba Disturbed area of a log landing, about 100 yards north of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. 1219 Comment
  UCD17924  Rubus ursinus H. Olmo; T. S. Mallah 1953-3-24 53 27 B Yuba California. Yuba County: Highway 28 in Smartville. Growing 50 yards east of bridge on creek bank. Comment
  UCD17937  Rubus ursinus H. Olmo; T. S. Mallah 1953-3-24 53 27 C Yuba California. Yuba County: Highway 28 in Smartville. 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
  SD236385  Rumex acetosella G. K. Helmkamp, E. A. Helmkamp 2008-5-20 13470 Yuba Sierra Nevada Mountains Foothills: along CA-49, 0.1 miles north of the Nevada Co. line at Oregon Creek. 466 Comment
  CHSC108225  Rumex conglomeratus Lowell Ahart 2011-6-7 17407 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CAS-BOT-BC421731  Rumex conglomeratus Gordon H. True; J. T. Howell 1967-6-13 3561 Yuba Camp Far West Reservoir on Bear River east of Wheatland 60 Comment
  CHSC108189  Rumex crispus Lowell Ahart 2011-6-7 17408 Yuba East of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCD101164  Rumex crispus Barbara Yungert 1974-5-1 99 Yuba West of barns, SC-5 project area, Sierra Foothill Field Station. Comment
  CHSC97674  Rumex pulcher Lowell Ahart 2007-5-14 13868 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  RSA727115  Rumex pulcher L. Ahart 2007-5-14 13868 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  CHSC97507  Sagina apetala Lowell Ahart 2007-5-12 13787 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  CAS-BOT-BC267070  Sagittaria F. J. Veihmeyer 1932-10-1 s.n. Yuba Sacramento Valley Comment
  CAS-BOT-BC445724  Sagittaria latifolia Lowell Ahart 1977-9-25 s.n. Yuba Sam Shintaffer Farm, 2 mi. northeast of Marysville. 35 Comment
  CAS-BOT-BC445807  Sagittaria montevidensis Lowell Ahart 1977-8-31 s.n. Yuba Sam Shintaffer Farm, 2 mi. northeast of Marysville. 30 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
  CAS-BOT-BC267096  Sagittaria sanfordii W. V. Middlekauff 1955-7-4 s.n. Yuba 3 miles NW of Rio Oso Post Office Comment
  CAS-BOT-BC103040  Salix bonplandiana Alice Eastwood 1913-7-3 3413 Yuba Bear River, [Mc Courtneys] McCourtneys Bridge Comment
  JEPS118296  Salix exigua Lowell Ahart 2011-6-7 17414 Yuba Just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCD80751  Salix exigua CNPS SN Foothill Team 2005-3-16 SNFN 0017 b Yuba CDFG, Spenceville Wildlife Area. From CA Highway 20, turn right on Smartville Road then left on Waldo Road, approximately 3/4 mile from Waldo Junction, located on south bank of Dry Creek, located in CDFG Spenceville Wildlife Area. 187 Comment
  CAS-BOT-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-BC104031  Salix gooddingii C. Hart Merriam 1906-9-1 s.n. Yuba Mouth of the Yuba River, Marysville Comment
  CAS-BOT-BC104032  Salix gooddingii C. Hart Merriam 1906-9-1 s.n. Yuba Mouth of the Yuba River, Marysville Comment
  JEPS38405  Salix gooddingii W. L. Jepson Apr. 1891 15 s Yuba between Sacramento and Marysville (Harding's Landing, Sacramento R.); Sacramento R., Harding's Landing Comment
  CHSC112197  Salix laevigata Lowell Ahart 2013-4-23 18565 Yuba Mined area along Costa Creek, about 100 yards east of where the paved road crosses Costa Creek, about 2 1/2 miles (air) southeast of the Forbestown store. 851 Comment
  UCD162402  Salpichroa origanifolia Lemuel Osborne Jr. 1956-10-17 s.n. Yuba south of Marysville near the Feather River. Comment
  CHSC114303  Salsola ryanii P. Akers 2002-9-19 Yuba Smartville Rd., 0.3 mi. N. of Daugherty. 30 Comment
  CHSC74096  Salvia sonomensis L. Gehrung 1996-6-24 Yuba Ca 2.2 air mi E of Challenge and W of the Yuba River, on E side of the USFS Rd 19N03 just N of Indian Creek crossing. 762 Comment
  CHSC93878  Salvia sonomensis L. P. Janeway 2006-5-24 8613 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way 1.3 road km southeast of Robinson Mill Road; 1.3 air km southeast of Robinson Mills and Forbestown Road. 771 Comment
  CHSC96572  Salvia sonomensis L. P. Janeway 2006-5-24 8628 Yuba Northern Sierra Nevada Foothills. Along Forsythe road 2.7 road km south of New York House Road; above Prince Albert Creek. 604 Comment
  UC1124850  Salvia sonomensis M. A. Elvin 1933-6-23 29 Yuba 1 mi W of Hansonville 426 Comment
  UCD112043  Salvia sonomensis Christopher Mallek 2008-5-5 IC3- 15 Yuba Indiana Creek. 617 Comment
  CDA7196  Sanguisorba minor subsp. muricata L. P. Janeway 2006-5-24 8634 Yuba Northern Sierra Nevada Foothills; South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. Comment
  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
  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
  UCR196989  Sanguisorba minor subsp. muricata George K. Helmkamp, E. A. Helmkamp 2008-5-20 13489 Yuba Foothills, northern Sierra Nevada Mountains, Camptonville, at the junction of Henness Pass Road and CA-49 823 Comment
  CHSC108207  Sanicula bipinnatifida Lowell Ahart 2011-6-7 17371 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC96483  Sanicula bipinnatifida Lowell Ahart 2007-4-17 13678 Yuba On the west side of a poor dirt road, west of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  JEPS113098  Sanicula bipinnatifida Lowell Ahart 2007-4-17 13678 Yuba On the west side of a poor dirt road, west of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  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
  JEPS121745  Sanicula bipinnatifida var. flava L. P. Janeway 2014-4-24 11235 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. Comment
  CHSC63236  Sanicula tuberosa Lowell Ahart 1994-6-5 7302 Yuba On the south side of Costa Creek, on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  JEPS88900  Sanicula tuberosa Lowell Ahart 1994-6-5 7302 Yuba about 3 air mi e Forbestown (on s side of Costa Creek, on e side of Forbestown Road); s side of Costa Creek 853 Comment
  JEPS88901  Sanicula tuberosa Lowell Ahart 1994-6-5 7302 Yuba about 3 air mi e Forbestown (on s side of Costa Creek, on e side of Forbestown Road); Costa Creek, Forbestown Road 853 Comment
  JEPS100351  Saponaria officinalis Dean W. Taylor 2001-6-21 17810 Yuba canyon of the North Fork Yuba River, near the confluence of Canyon Creek at Kelly Bar 609 Comment
  RSA0107828  Scandix pecten-veneris George K. Helmkamp 2014-4-17 22766 Yuba Sierra Nevada Foothills: Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville. 264 Comment
  CHSC83049  Sceptridium multifidum Lowell Ahart 2002-10-9 9964 Yuba East of a small stream, at the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1075 Comment
  CHSC70775  Schoenoplectus acutus var. occidentalis L. P. Janeway 1997-6-26 5174 Yuba South side of Woodruff Lane, 0.1 mi west of Mathews Lane; about 4 1/2 mi north-northeast of Marysville. 23 Comment
  CAS-BOT-BC111657  Schoenoplectus mucronatus A. S. Leopold 1956-7-18 s.n. Yuba 3 miles NW of Rio Oso Post Office. 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
  JEPS95411  Scirpus microcarpus Lowell Ahart 1994-6-27 7388 Yuba 4 mi NE of Strawberry Valley (near the NE side of Schwartz Meadow, on the E side of La Porte Road) 1219 Comment
  UC1552704  Scirpus microcarpus Frederica Bowcutt 1985-6-8 590 Yuba 1 air mi se Camptonville (12 air mi n of Nevada City, along Oregon Creek, Tahoe National Forest); Tahoe National Forest, along Oregon Creek 762 Comment
  CDA2626  Scirpus mucronatus L. Ahart 1999-9-17 8249 Yuba Sam Shintaffer Farm, south of Woodruff Lane, south of Mathews Road, 100 yards south of Sam Shintaffer s rice dryer, about 5 miles (air) northeast of Marysville. Comment
  SEINET13710634  Scirpus setaceus Lowell William Ahart, Lowell William Ahart 2003-1 10363 Yuba 5 Air Mi. N Od Dobbins (39 Deg 26'11.7"N, 121 Deg 12'07.3"W) 2746 Ft. 837 Comment
  UCD33109  Scirpus setaceus Beecher Crampton 1966-6-14 7752 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  CAS-BOT-BC243533  Scribneria bolanderi Beecher Crampton 1957-6-5 4147 Yuba 1/2 mile west of Oregon House Post Office Comment
  CAS-BOT-BC243534  Scribneria bolanderi Carl B. Wolf 1937-5-12 8629 Yuba 4 mi. NE of Wheatland on road to Grass Valley, Sacramento Valley 60 Comment
  CHSC97663  Scribneria bolanderi Lowell Ahart 2007-5-14 13855 Yuba Bottom of swales, about 100 yards east of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville. 29 Comment
  JEPS113392  Scribneria bolanderi Lowell Ahart 2007-5-14 13855 Yuba Bottom of swales, about 100 yards east of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville 29 Comment
  CHSC97774  Scrophularia californica subsp. floribunda Lowell Ahart 2007-11-1 14544 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
  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
  CHSC93074  Scutellaria californica L. P. Janeway 1994-7-1 4675 Yuba Northern High Sierra Nevada. West side of Slate Creek about 3 air mi northeast of Strawberry Valley; along Road 20N35 0.1 mi south of the bridge across Slate Creek. 1005 Comment
  UC884068  Scutellaria californica Lewis S. Rose 1940-5-28 40387 Yuba Browns Valley 60 Comment
  HSC99328  Scutellaria californica C. B. Wolf 1927-11-5 1441 Yuba Road to Brown's Valley, 8 mi. from Marysville Comment
  RSA10982  Scutellaria californica Carl B. Wolf 1927-11-5 1441 Yuba Eight miles from Marysville on road to Browns Valley. Comment
  CHSC112353  Scutellaria tuberosa L. P. Janeway 2014-6-15 11224 Yuba Northern High Sierra Nevada. Plumas National Forest; about halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River), near Road 18N01A close to its lower end. 860 Comment
  CDA42472  Selaginella hansenii L. Ahart 2005-2-28 11565 Yuba West of a poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. Comment
  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
  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
  CHSC95053  Sericocarpus oregonensis L. P. Janeway 2006-9-20 8886 Yuba Northern High Sierra Nevada. Along the old Scales Road 0.2 km southwest of its crossing of Slate Creek. Along sides of dirt road; east-facing slope. 1090 Comment
  UCD92707  Setaria pumila Beecher Crampton 1964-10-22 7223 Yuba 3 miles east of Brown's Valley Dry Creek. Comment
  CDA31983  Setaria viridis L. Ahart 2007-5-14 13844 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 20 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville Comment
  CHSC81082  Setaria viridis Lowell Ahart 2001-8-14 9109 Yuba On the north side of Marysville Road, about 50 yards east of the east end of Bullards Bar Dam. 609 Comment
  JEPS102448  Setaria viridis Lowell Ahart 2001-8-14 9109 Yuba On the north side of Marysville Road, about 50 yards east of the east end of Bullards Bar Dam. 609 Comment
  JEPS113723  Setaria viridis Lowell Ahart 2007-5-14 13844 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  CAS-BOT-BC263234  Sherardia arvensis Lowell Ahart 2007-5-12 13814 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC108187  Sherardia arvensis Lowell Ahart 2011-6-7 17413 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS113725  Sherardia arvensis Lowell Ahart 2007-5-12 13814 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS118303  Sherardia arvensis Lowell Ahart 2011-6-7 17413 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UCD81498  Sherardia arvensis Christopher Michael Bronny 2009-4-1 10 Yuba Oat Hills' area of Sierra Nevada foothills. 146 Comment
  UCD122001  Sherardia arvensis Kathleen Keliher 1975-4-13 62 Yuba Near Lower Cook Road, K 1-11 project area, Sierra Foothill Field Station. 243 Comment
  UCD82076  Sherardia arvensis Robin McMaster 1973-4-7 227 Yuba Browns Valley. Comment
  CAS-BOT-BC213108  Sidalcea John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54082 Yuba About 2 miles northeast of dobbins on Oregon Hill Road, Sierra Nevada. 701 Comment
  CHSC100998  Sidalcea asprella L. P. Janeway 2006-5-24 8630 Yuba Northern Sierra Nevada Foothills. South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. 483 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
  UC570264  Sidalcea diploscypha H. S. Yates 1933-5-24 3643 Yuba 3 mi w Cabbage Patch; Smartsville Quad. Comment
  RSA121083  Sidalcea diploscypha H. S. Yates 1933-5-24 3643 Yuba Smartsville, 3 miles W. of Cabbage Patch 30 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
  CHSC74098  Sidalcea gigantea B. Castro; L. Gehrung 1998-7-30 818 Yuba Ca 1.7 air mi S of Sly Creek Reservoir and 5 mi E of Woodleaf along the La Porte Rd, 0.1 mi E of Travis Saddle. Large stand on S side of road. 1112 Comment
  RSA792311  Sidalcea gigantea G. L. Clifton 1996-8-17 35038 Yuba At Travis Saddle along La Porte Road. 1098 Comment
  SEINET7085244  Sidalcea gigantea Steven R. Hill 2010-7-17 38555 Yuba Along La Porte Road, 950 feet northeast of Travis Saddle. 13.6 kilometers north-northwest of Camptonville. Just southwest of Strawberry Valley Sierra Nevada. Type Locality. Coordinate Datum: WGS84/NAD83. 1100 Comment
  SD130448  Sidalcea glaucescens Lowell Ahart 1980-7-25 2485 Yuba Near Slate Creek. 1200 Comment
  UCD80452  Sidalcea hartwegii CNPS SN Foothill Team 2005-6-1 SNFN 0173 b Yuba CDFG Daugherty Hill Wildlife Area, in the 'C' shaped parcel located to the east of the Daugherty Hill Unit. 623 Comment
  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
  HSC100772  Sidalcea hirsuta Lowell Ahart 2007-5-14 13851 Yuba 13.5 (air) mi. NE of Marysville, ~1/2 mi. N of Fruitland Rd. and ~30 yd. E of third power tower. 29 Comment
  JEPS113401  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
  RSA87486  Sidalcea malviflora subsp. asprella C. L. Hitchcock 1952-5-28 19539 Yuba 1/2 mile S. E. of Challenge, Comment
  UC1728658  Silene bridgesii Richard Olmstead 1986-6-13 843 Yuba Junction of Oregon Creek with Middle Fork Yuba River (Oregon Creek Picnic Ground); Oregon Creek Picnic Ground 451 Comment
  SEINET11946136  Silene californica F. H. Utech 1990-6-5 90 -867 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  JEPS118057  Silene gallica Lowell Ahart 2011-6-7 17389 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  SD236262  Silene gallica David Charlton 2005-5-16 8024 Yuba Sacramento Valley: Yuba Gold Field; just S of Yuba River; ca. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area ca 2 mi by 1 mi (Browns Valley 7.5'Q). 25 Comment
  SEINET1908330  Silene gallica David Charlton 2005-1 8024 Yuba Sacramento Valley: Yuba Gold Field; just S of Yuba River; ca. 7.5 ENE of Marysville; N of Beale Airforce Base; Survey area ca. 2 mi by 1 mi, Browns Valley 26 Comment
  CAS-BOT-BC75047  Sisymbrium altissimum Lowell Ahart 1977-4-16 s.n. Yuba Marysville. 30 Comment
  CHSC97450  Sisymbrium officinale Lowell Ahart 2007-5-14 13858 Yuba Dry bare red soil in the center of a dirt road, 10 yards south of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville. 29 Comment
  CAS-BOT-BC75301  Sisymbrium officinale Gordon H. True 1963-4-17 1151 Yuba About 3.5 miles south of Smartville, on Beale Aif Force Base road. 213 Comment
  UCD115754  Sisymbrium officinale Barbara Yungert 1974-5-23 179 Yuba gate between Road 2 and Road 3, Fl-24 project area, Sierra Foothill Field Station. Comment
  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
  CDA5903  Solanum carolinense Margaret Bellue Aug 1939 Yuba Marysville. 0 Comment
  CDA5904  Solanum carolinense Margaret Bellue Aug 1939 Yuba Marysville. 0 Comment
  UCD126857  Solanum carolinense W. B. McHenry 1978-8-1 s.n. Yuba Sierra Foothill Range Field Station, near Brown Valley. Comment
  UCD126858  Solanum carolinense Ken Taggard 1971-10-1 s.n. Yuba Sierra Foothill Range Field Station. Comment
  CDA36460  Solanum elaeagnifolium Kevin Roush 2011-8-8 PDR# 1616478 Yuba Marysville; Biz Johnson Dr. under 10th St. Bridge. 0 Comment
  CHSC32091  Solanum elaeagnifolium L. Ahart 1974-8-1 571 Yuba In barnyard, Glenn Clark farm, ca. 1 mi e of Honcut. 36 Comment
  SJSU4467  Solanum parishii J. B. Willis Jr. 1969-4-27 80 Yuba Timbuctoo Rd 0.25 mi off State Rte 20, 19 mi E of Marysville Comment
  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
  UC1330020  Soliva sessilis Beecher Crampton 1967-5-17 7941 Yuba 5 mi e Brown's Valley; UC Sierra Foothill Range Field Station Comment
  CAS-BOT-BC365807  Soliva sessilis Peter H. Raven 1954-4-17 6624 Yuba Marysville Comment
  CHSC108208  Sonchus asper subsp. asper Lowell Ahart 2011-6-7 17384 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
  UCD136211  Sonchus oleraceus Barbara Yungert 1974-5-6 118 Yuba south of station headquarters, Sierra Foothill Field Station. 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
  UCR201739  Sorghum halepense George K. Helmkamp, E. A. Helmkamp 2008-10-6 14212 Yuba Sacramento Valley, Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  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
  CHSC107559  Spergula arvensis subsp. arvensis Lowell Ahart 2011-6-7 17390 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS118315  Spergula arvensis subsp. arvensis Lowell Ahart 2011-6-7 17390 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CHSC45562  Spergularia rubra Lowell Ahart 1980-8-12 2565 Yuba On a gravel bar, a little below where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  UCD99284  Spergularia rubra G. K. Helmkamp 2006-10-10 11523 Yuba Northern Sierra Nevada Mountains Foothills; along Hwy CA-49 just north of the Nevada County line at the Middle Yuba River bridge. 451 Comment
  CHSC78351  Spiranthes porrifolia Lowell Ahart 2000-6-11 8473 Yuba West of Smartville Road, about 1/8 mile southwest of the intersection of Waldo Road and Smartville Road, about 8 miles (air) south of Smartville. 99 Comment
  CHSC84241  Spiranthes porrifolia Lowell Ahart 2003-7-6 10357 Yuba Near and in a meadow, east of the power line, about 60 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  CHSC96987  Stellaria borealis subsp. sitchana Lowell Ahart 2007-8-7 14408 Yuba Hampshire Creek Meadow, about 20 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. On the east side of a small pond, on the west side of the dirt road. 1021