Search Results — 2000 specimen records retrieved (1527 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CHSC81795  Abutilon theophrasti Lowell Ahart 2001-11-2 9400 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  UCR201764  Abutilon theophrasti George K. Helmkamp, E. A. Helmkamp 2008-10-6 14210 Yuba Sacramento Valley, Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  UCR197051  Achillea millefolium George K. Helmkamp, E. A. Helmkamp 2008-5-20 13475 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  UCD32531  Achnatherum lemmonii Beecher Crampton 1954-5-10 1847 Yuba Yuba County, 6 miles south of Camptonville, along highway 49, north slope near the middle of the Yuba River. Comment
  JEPS100273  Achnatherum lemmonii var. lemmonii Dean W. Taylor 2001-5-9 17646 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  JEPS125983  Achnatherum lettermanii D. W. Taylor 2001-8-1 17854 Yuba Slate Creek ca 2 miles E of Gibsonville, ca 8 miles NE of La Porte, along Forest Road 22N44X. Comment
  JEPS100364  Achnatherum stillmanii Dean W. Taylor 2001-6-6 17770 Yuba Peterson Ridge (ca. 2 air mi SE of Strawberry Valley); along Forest Road 35 (20N35) about 0.8 miles northeast of the junction with Forest Road 04 (20N04), on the easterly facing canyon wall of Slate Creek 1158 Comment
  SEINET10611233  Achnatherum stillmanii Dean W. Taylor 2001-6-6 Taylor 17770 Yuba Peterson Ridge (ca. 2 air mi SE of Strawberry Valley); along Forest Road 35 (20N35) about 0.8 miles northeast of the junction with Forest Road 04 (20N04), on the easterly facing canyon wall of Slate Creek; T20N R8E NE1/4 Section 27; 39.56808N/-121.06651W; Strawberry Valley 7 1/2' USGS quadrangle; growing on rocky roadcut on partially serpentinized substrate, in dense woodland with Pinus ponderosa, Calocedrus decurrens, Cornus nuttallii, Ceanothus integerrimus. 1158 Comment
  CAS-BOT-BC29940  Achyrachaena mollis Gordon H. True 1964-4-17 1161 Yuba About 6.5 miles south of Smartville, on Beale A.F.B. road 144 Comment
  UCD128415  Achyrachaena mollis E. J. Kinbacher 1953-4-28 9 Yuba State Highway 20, 8 miles northeast of Marysville. 24 Comment
  UCD128429  Achyrachaena mollis Barbara Yungert 1974-5-6 123 Yuba east side of Scott Lane, west of SC-19 project area, Sierra Foothill Station. Comment
  UCD104579  Acmispon R. Osborne 1987-9-24 s.n. Yuba H.H. Ovantero Ranch, Dist. 10. Comment
  CAS-BOT-BC204862  Acmispon argophyllus var. fremontii Lewis S. Rose 1939-6-7 39243 Yuba N. Fork of Feather River, 3 mi. s. of Pulga 609 Comment
  UCD104173  Acmispon grandiflorus Kathleen Keliher 1975-5-30 123 Yuba 200 yard up roadcut along Oregon Hill Road, 5 miles east of La Porte Road. 701 Comment
  CHSC112368  Acmispon grandiflorus var. macranthus L. P. Janeway 2014-4-24 11233 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  SEINET11261963  Adenocaulon bicolor Robert L. Johnson, Mikel R. Stevens 2015-7-13 3966 Yuba Sierra Nevadas. 2.9 rd mi E of junction with Challenge Cuttoff Rd on La Porte Rd, Sharon Valley. At junction of La Porte Rd and Milk Ranch Rd (dirt rd).; 0 973 Comment
  UCD136664  Aesculus californica Barbara Yungert 1974-5-14 154 Yuba south of Porter Creek, south of station, Sierra Foothill Field Station. 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
  JEPS85606  Agnorhiza bolanderi Rimo Bacigalupi with G. T. Robbins and F. Chisaki 1956-4-19 5619 Yuba 1 mi n Dobbins (0.4 mi s of Dobbins Ranger Station, along road from Oregon House to Dobbins) 571 Comment
  CAS-BOT-BC295537  Agnorhiza bolanderi G. L. Stebbins 1966-5-22 6413 Yuba 2 miles north of Oregon House, on road to Forbestown 396 Comment
  CHSC44843  Agoseris grandiflora Lowell Ahart 1979-6-25 1944 Yuba About 1 air mile south of Challenge. 640 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
  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
  UCD128608  Agoseris heterophylla Kathleen Keliher 1975-5-3 85 Yuba along Lower Cook Road, around 1000 yards north of Meathook project area, k 1-11 project area, Sierra Foothill Field Station. 243 Comment
  CAS-BOT-BC451165  Agrimonia gryposepala Lowell Ahart 1977-7-31 s.n. Yuba Aount 1 mile south of Challenge 700 Comment
  JEPS113693  Agrostis avenacea Lowell Ahart 2007-5-14 13862 Yuba On dry bare red soil, on the bottom of a swale, about 250 yards west of the power tower, power tower is about 30 yards north of the Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  UCD51766  Agrostis avenacea Beecher Crampton 1965-5-11 7323 Yuba 2.5 miles southwest Brown's Valley. Comment
  CHSC47597  Agrostis exarata Lowell Ahart 1980-8-12 2561 Yuba Across from Slate Creek, a little below where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  UCD52102  Agrostis exarata Beecher Crampton 1965-6-17 7377 Yuba 3/4 mile north of Stanfield Hill, Willon Glen Creek. 396 Comment
  UCD52130  Agrostis exarata Beecher Crampton 1957-6-5 4137 Yuba Stanfield Hill. Comment
  CAS-BOT-BC139343  Agrostis idahoensis John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54088 Yuba Sierra Nevada. 3.6 miles northest of Strawberry Valley on La Porte - Quincy road. 1280 Comment
  CHSC105843  Agrostis idahoensis Lowell Ahart 2010-7-27 16920 Yuba Meadow on the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. Along small streams in the meadow. 1219 Comment
  CAS-BOT-BC138782  Agrostis scabra Lowell Ahart 1980-8-12 2575 Yuba Sierra Nevada. Along Slate Creek. 1250 Comment
  CHSC116336  Agrostis scabra Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-19 20679 Yuba Spillway area, at the west side and near the top of Lake Francis Dam, below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  JEPS124262  Agrostis scabra Lowell Ahart 2015-11-19 20679 Yuba Lake Francis, about 1 1/2 miles south 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
  SEINET3450791  Agrostis stolonifera Unknown 2003-7-6 10366 Yuba Dobbins, Dobbins, about 5 air miles north Comment
  UCD55763  Aira caryophyllea Barbara Yungert 1974-4-25 G- 1 Yuba Sierra Foothill Field Station, Lower Scott project area, along four wheel drive road. Comment
  UCD55768  Aira caryophyllea Beecher Crampton 1962-4-24 6277 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  SEINET5335999  Aira caryophyllea C. Aarstad 1979-4-28 s.n. Yuba at junct. of Rt. 20 and N Fork of Browns Valley 183 Comment
  SEINET5336000  Aira caryophyllea D. Selleck 1979-4-27 s.n. Yuba Sierra Field Station-UC Davis Comment
  CAS-BOT-BC138414  Aira caryophyllea var. capillaris Beecher Crampton 1957-6-5 4153 Yuba Foothill flat. 1.3 mile east Oregon House Store. Comment
  UCD55787  Aira caryophyllea var. capillaris Beecher Crampton 1965-5-11 7317 Yuba 2.5 miles southwest of Brown's Valley. Comment
  CAS-BOT-BC138349  Aira caryophyllea var. caryophyllea Gordon H. True 1963-4-17 1177 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Highway. 30 Comment
  UC1153945  Aira elegantissima Beecher Crampton 1957-6-5 4153 Yuba 1.3 mi e Oregon House Store Comment
  CHSC84183  Alisma lanceolatum Lowell Ahart 2003-7-17 10415 Yuba On the bottom of a small 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
  JEPS104656  Alisma lanceolatum Lowell Ahart 2003-7-17 10415 Yuba On the bottom of a small stream, on the w side of Smartville Rd, ca 2 mi n of the intersection of Waldo Rd and Smartville Rd, ca 6 mi (air) south of Smartville. 129 Comment
  SEINET3449084  Alisma lanceolatum Unknown 2003-7-17 10415 Yuba Smartville, Smartville, about 6 air miles south, west side of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road 120 Comment
  CAS-BOT-BC131978  Allium Gordon H. True 1963-4-17 1169 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Hwy. 30 Comment
  CHSC84322  Allium amplectens Lowell Ahart 2003-7-17 10418 Yuba On both sides of Marysville Road, about 1/2 miile west of Oregon House. 466 Comment
  JEPS13879  Allium amplectens Rimo Bacigalupi with L. R. Heckard, R. D. Sanderson, and G. Bacigalupi 1952-6-20 3758 Yuba 1.5 mi due s Brownsville (along road from Brownsville to Oregon House, just n of Washington Mill) 609 Comment
  UC410438  Allium amplectens Alice Eastwood 1930-4-13 17934 Yuba near Marysville Comment
  CAS-BOT-BC462250  Allium amplectens Lewis S. Rose 1940-5-28 40403 Yuba Oregon House 457 Comment
  UCD141817  Allium amplectens L. K. Mann 1958-4-20 s.n. Yuba along Highway 20, a few miles east of Marysville near culvert #A-7.14. Comment
  UCD138495  Allium campanulatum W. R. Powell 1968-5-24 1552 Yuba 5 miles south-southeast of Challenge, 3/4 mile south of Greenville. 640 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
  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
  CAS-BOT-BC132067  Allium peninsulare var. peninsulare Gordon H. True 1965-6-9 1988 Yuba Rock Creek just east of old McCourtney Road Bridge, Nevada Co., 14 miles east of Wheatland 182 Comment
  SBBG867  Allium sanbornii H. and M. Dearing 1939-5-6 3289 Yuba N of Challenge Comment
  CHSC69157  Allium sanbornii var. sanbornii Lowell Ahart 1997-8-7 7835 A Yuba Northwest of the bridge across Indian Creek, about 3 miles (air) east of Challenge. 762 Comment
  NY247881  Allium sanbornii var. sanbornii A. W. Wood 1866-1 s.n. Yuba Near Fosters Bar. S.S. Sauborn Esq. Comment
  UCD138625  Allium sanbornii var. sanbornii L. K. Mann 1957-4-19 s.n. Yuba along road from Dobbins to Camptonville. About 1 mile past Dobbins. Comment
  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
  CHSC44541  Alopecurus carolinianus Lowell Ahart 1978-4-14 1639 Yuba West of Kimball Lane and on the property of Shintaffer Farms Inc., about 2 miles north-east of Marysville. 30 Comment
  CHSC97658  Alopecurus saccatus Lowell Ahart 2007-5-12 13821 Yuba Bottom of a vernal pool, about 100 feet northeast of a culvert, about 80 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCD32893  Alopecurus saccatus Beecher Crampton 1965-5-11 7324 Yuba Yuba County, 2.5 miles S.W. Brown Valley. Comment
  CDA31982  Amaranthus hybridus L. Ahart 2007-5-14 13841 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 20 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville Comment
  RSA726415  Amaranthus hybridus L. Ahart 2007-5-14 13841 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  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
  CHSC97443  Amaranthus retroflexus Lowell Ahart 2007-5-14 13840 Yuba Dry red bare soil, east of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  CHSC83019  Ambrosia psilostachya Lowell Ahart 2002-10-10 9976 Yuba On the west side of the dirt road, east of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20. 166 Comment
  JEPS103445  Ambrosia psilostachya Lowell Ahart 2002-10-10 9976 Yuba On the W side of the dirt road, E of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, ca 2 miles (air) N of Bridgeport, ca 18 miles N of Highway 20. 166 Comment
  JEPS98996  Ambrosia psilostachya Lowell Ahart 2001-11-2 9410 Yuba Camp Far West Reservoir, about 1/8 mile NE of the dam, about 9 miles (air) SE of Wheatland. 91 Comment
  CAS-BOT-BC55576  Ambrosia psilostachya John Thomas Howell 1951-8-21 28288 Yuba Near Comptonville 762 Comment
  UC1127768  Amelanchier utahensis G. Burks 1933-9-26 40 Yuba 1 mi s Camptonville; Tahoe National Forest, Smartsville Quad. 822 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
  CHSC76283  Ammannia robusta Lowell Ahart 1999-9-17 8245 Yuba On the margins of a rice field, south of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer's rice dryer, about 5 miles (air) northeast of Marysville. 24 Comment
  UCD37849  Amsinckia Beecher Crampton 1962-4-24 6253 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD37868  Amsinckia Beecher Crampton 1962-4-24 6284 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  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
  SEINET12479904  Amsinckia intermedia A. Tiehm 1975-1 648 Yuba U.C. Sierra Foothill Field station. 274 Comment
  UCD119711  Amsinckia intermedia Barbara Yungert 1974-4-14 33 Yuba Meathook project area, Sierra Foothill Field Station. Comment
  UCR231311  Amsinckia retrorsa George K. Helmkamp, E. A. Helmkamp 2011-5-6 17190 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.9 mile west of the junction at Camp Far West Reservoir 65 Comment
  CHSC90336  Anagallis arvensis Lowell Ahart 2005-3-11 11599 Yuba On the west side of the poor dirt road, about 1/2 mile west of Marysville Road, about 1/4 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/4 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 344 Comment
  JEPS113619  Anagallis arvensis Lowell Ahart 2007-5-14 13850 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  UCD117557  Anagallis arvensis Barbara Yungert 1974-4-25 88 Yuba SC-14 project area, Sierra Foothill Field Station. Comment
  RSA220010  Anagallis minima J. T. Howell, G. H. True 1967-6-13 3559 Yuba Camp Far West reservoir on Bear River E. of Wheatland. In damp soil at edge of reservoir. 61 Comment
  HSC5271  Andropogon glomeratus C. B. Wolf 1927-11-5 1436 Yuba Road to Brown's Valley, 8 mi. from Marysville 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
  RSA88333  Andropogon virginicus G. H. True 1951-6-6 s.n. Yuba meadows near Parks Bar Comment
  UCD56085  Andropogon virginicus Beecher Crampton 1957-6-5 4113 Yuba Along State Hwy. 20, 7.5 miles east of Marysville. Comment
  UCD56093  Andropogon virginicus R. M. Love 1952-10-31 s.n. Yuba 13 miles east of Marysville. Comment
  UCD56098  Andropogon virginicus R. N. Raynor 1938-4-25 s.n. Yuba near Marysville. Comment
  CDA42983  Andropogon virginicus var. virginicus L. Ahart 2013-11-3 19307 Yuba On north side of Dry Creek, below the high water line of Collins Lake, about 300 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. Comment
  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
  CHSC45502  Anemone oregana Lowell Ahart 1972-4-28 89 Yuba Near the West Branch Brushy Creek, about 10 miles by road east of Strawberry Valley. 1219 Comment
  CHSC84145  Anisocarpus madioides Lowell Ahart 2003-7-2 10343 Yuba About 200 yards south of the 4-H Camp, on the west side of Oregon Hill Road, about 1/2 mile north of Marysville Road, about 2 miles (air) northeast of Dobbins. 815 Comment
  JEPS104293  Anisocarpus madioides Lowell Ahart 2003-7-2 10343 Yuba About 200 yd south of the 4-H Camp, on the w side of Oregon Hill Rd, ca 1/2 mi n of Marysville Rd, ca 2 mi (air) ne of Dobbins. 815 Comment
  CDA19127  Anredera cordifolia L. Dillard 2001-6-12 PDR 1197437 Yuba Sacramento Valley; Canal St., Olivehurst. 0 Comment
  CHSC70780  Antennaria argentea B. Castro; L. Gehrung 1995-6-2 573 Yuba Ca 2 air mi SE of Strawberry Valley, 0.5 to 0.8 mi N of the N Fork Yuba River, on S-trending ridge to Weed Point. Along both sides of USFS Rd 20N81. 1021 Comment
  RSA795537  Anthemis cotula L. Ahart 2011-6-7 17373 Yuba Bottom of a depression at the base of cliffs, to the north is a huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 air miles northeast of Marysville. 66 Comment
  UCD129058  Anthemis cotula Barbara Yungert 1974-5-23 185 Yuba Sierra Foothill Field Station. 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
  JEPS87729  Anthoxanthum odoratum Lowell Ahart 1994-6-27 7391 Yuba about 4 mi ne of Strawberry Valley (near s side of Schwartz Meadow, on e side of La Porte Road); Schwartz Meadow, La Porte Road 1219 Comment
  JEPS98605  Anthoxanthum odoratum Lowell Ahart 2000-6-19 8491 Yuba About 100 yards N of New York Flat Road, ca 11/4 miles (air) NE of Brownsville, ca 21/4 miles (air) W of Challenge. 731 Comment
  CHSC96490  Anthriscus caucalis Lowell Ahart 2007-4-17 13679 Yuba East of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  HSC100824  Anthriscus caucalis Lowell Ahart 2011-6-7 17369 Yuba Just S of gravel bar along the Yuba River, ~150 yd. W of the S end of Parks Bar Bridge, 15 (air) mi. NE of Marysville. 66 Comment
  JEPS118314  Anthriscus caucalis Lowell Ahart 2011-6-7 17369 Yuba Just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  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
  CHSC87344  Aphyllon purpureum Lowell Ahart 2004-4-27 10765 Yuba About 20 yards west of a drainage, about 40 yards south of the road, about 1/2 mile (air) southeast of Woodleaf. 931 Comment
  UC1278004  Aquilegia formosa B. Crampton 1957-6-5 4160 Yuba 3 mi e Oregon House Store Comment
  JEPS94620  Aralia californica Lowell Ahart 1997-8-7 7819 Yuba Peterson Ridge Rd. about 3 air mi se Challenge (on bottom and sides of small stream, a branch of Little Oregon Creek, on e side of dirt road) 762 Comment
  CAS-BOT-BC128687  Arbutus menziesii Alice Eastwood 1918-4-7 6799 Yuba Camptonville 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
  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
  UCD52283  Arctostaphylos mewukka B. F. Smith 1968-9-20 89 Yuba Gochette Ranch; 3 miles east of Challenge. 883 Comment
  CAS-BOT-BC38553  Arctostaphylos mewukka subsp. truei Volney Rattan 1880-1-1 s.n. Yuba Yuba Co. Comment
  SEINET11995503  Arctostaphylos truei W. Knight, Knight, I.; Knight, T. 1988-1 6298 Yuba Kellogg Flat near Woodleaf, on La Porte Rd 914 Comment
  UCD52570  Arctostaphylos viscida B. F. Smith 1968-9-20 90 Yuba Gochette Ranch, 3 miles east of Challenge, Yuba County, California. 883 Comment
  CAS-BOT-BC48244  Arctostaphylos viscida subsp. viscida L. S. Rose 1931-4-13 s.n. Yuba Woodleaf Comment
  CAS-BOT-BC48246  Arctostaphylos viscida subsp. viscida Alice Eastwood 1918-4-7 6798 Yuba Camptonville Comment
  CAS-BOT-BC48247  Arctostaphylos viscida subsp. viscida Alice Eastwood 1921-5-22 10599 Yuba Los Vergils Comment
  CHSC69160  Aristida oligantha Lowell Ahart 1997-8-7 7808 Yuba On the north side of New York Flat Road, about one mile northwest of La Porte Road, about 1 mile north of Brownsville. 731 Comment
  JEPS95028  Aristida oligantha Lowell Ahart 1997-8-7 7808 Yuba about 1 mi n of Brownsville (on n side of New York Flat Road, about 1 mi nw of La Porte Road); New York Flat Road 731 Comment
  POM266630  Aristida oligantha J. C. Roos 1939-7-3 1517 Yuba plains near Marysville Comment
  CDA22414  Aristolochia californica E. Vickery, P. E. Levingston 1965-3-12 Yuba Wheatland. 0 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
  CDA24668  Armoracia rusticana A. Worledge 1944-1 Yuba 0 Comment
  CDA24669  Armoracia rusticana A. Worledge 1944-1 Yuba 0 Comment
  CHSC113199  Artemisia douglasiana Lowell Ahart 2013-11-30 19314 Yuba On the sides of a wash, about 20 yards north of Dry Creek, just above the high water line of Collins Lake, about 350 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 361 Comment
  UCR191123  Artemisia douglasiana George K. Helmkamp, E. A. Helmkamp 2007-8-29 12830 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
  SBBG1383  Asarum hartwegii H. and M. Dearing 1939-5-8 3294 Yuba near New York Crk, near Brownsville 762 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
  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
  CDA39841  Asclepias fascicularis H. Crane 1932-4-2 s.n. Yuba Marysville. 0 Comment
  CHSC43319  Asclepias speciosa Lowell Ahart 1979-6-25 1934 Yuba Near the edge of LaPorte Road, about 2 miles south-west of Brownsville. 365 Comment
  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
  CHSC46024  Aspidotis densa Lowell Ahart 1974-7-29 686 Yuba About 50 yards south of Forbestown Road, near Costa Creek, about 2 1/2 miles east of Forbestown. 914 Comment
  RSA507792  Aster oregonensis J. C. Semple, S. Heard 1986-8-13 8413 Yuba C. 9000 LaPorte Rd., near Brownsville. 1.3 km west of New York Flat Road. Comment
  CHSC69131  Aster radulinus Lowell Ahart 1997-8-7 7829 Yuba Peterson Ridge Road, about 3 miles (air) east of Challenge. 762 Comment
  JEPS94622  Asyneuma prenanthoides Lowell Ahart 1997-8-7 7816 Yuba Near a branch of Little Oregon Creek, on the west side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  CHSC69136  Asyneuma prenanthoides Lowell Ahart 1997-8-7 7816 Yuba Near a branch of Little Oregon Creek, on the west side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  CAS-BOT-BC66030  Athyrium filix-femina var. cyclosorum W. Fred Ayres Summer 1925 s.n. Yuba unspecified Comment
  JEPS107422  Athysanus pusillus Lowell Ahart 2005-2-28 11563 Yuba West of a poor dirt road, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica 400 Comment
  RSA715712  Athysanus pusillus L. Ahart 2005-2-28 11563 Yuba West of a poor dirt road, about 0.5 mile W of Marysville Road, about 0.5 mile N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 0.5 mile N of Loma Rica Road, about 5 miles (air) NE of Loma Rica. 400 Comment
  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
  UCD56208  Avena barbata Beecher Crampton 1964-4-24 6269 Yuba 5 miles E of Browns Valley. Sierra Foothill Range. Field Station. Comment
  SEINET5336141  Avena barbata C. Aarstad 1979-4-28 s.n. Yuba at junct. of Rt. 20 and N fork of Yuba in Browns Valley 183 Comment
  UCD56458  Avena fatua Beecher Crampton 1962-4-24 6252 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  CHSC112954  Baccharis pilularis subsp. consanguinea L. P. Janeway 2014-6-6 11580 Yuba Northern High Sierra Nevada. Plumas National Forest; small ephemeral meadow on a flattish bench at head of ephemeral northeastern tributary to Little Oregon Creek; 1.9 air km south-southeast of Pike County Peak; 0.24 km northeast of Oregon Hill Road, 0.15 km south of Peterson Ridge Road. 852 Comment
  UCD123527  Bacopa rotundifolia C. F. Dunshee 1925-1 s.n. Yuba Sacramento Valley. Comment
  CHSC68473  Barbarea orthoceras Lowell Ahart 1997-4-6 7718 Yuba Along the south side of Dry Creek, at the intersection of Scott Forbes Road and Peoria Road, just east of the bridge across Dry Creek, about 14 miles northeast of Marysville. 60 Comment
  CHSC87349  Berberis aquifolium var. dictyota Lowell Ahart 2004-4-27 10770 Yuba About 20 yards north of a drainage, about 50 yards east of the road, about 1/2 mile (air) southeast of Woodleaf. 931 Comment
  UCD95057  Berberis aquifolium var. dictyota Kathleen Keliher 1975-4-30 72 Yuba 1.5 miles E of Dobbins on Marysville Road, entrance to Middle brook Ranch. 609 Comment
  CHSC76265  Bidens cernua var. cernua Lowell Ahart 1999-9-17 8260 Yuba Sam Shintaffer Farm, about 1/8 mile southeast of the intersection of Ellis Avenue and Jack Slough Road, about 4 miles (air) northeast of Marysville. 21 Comment
  JEPS115047  Bidens frondosa Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14497 Yuba On the east side of a small pond, on the west side of the dirt road, Hampshire Creek Meadow, about 2 yards west of the dirt road, about 1 mile (air) east of Clipper Mills 1015 Comment
  CAS-BOT-BC31388  Bolboschoenus robustus A. S. Leopold 1956-7-18 s.n. Yuba 3 miles NW of Rio Oso Post Office. 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
  JEPS28076  Boykinia occidentalis Rimo Bacigalupi and L. Heckard 1961-6-16 7831 Yuba on w slope of canyon North Fork of the Yuba River (just above and w of Bullards Bar Dam (second and upper crossing of this same brook)); canyon of N. Fork of the Yuba River 586 Comment
  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-BC145441  Brachypodium distachyon J. T. Howell; Gordon H. True 1969-6-24 5092 Yuba Vineyard Creek ca. 4 miles south of Smartville on Beale AFB Road. 152 Comment
  CAS-BOT-BC145442  Brachypodium distachyon Beecher Crampton 1957-6-5 4121 Yuba Along State Highway 20, 10 miles east of Marysville. Comment
  CAS-BOT-BC145443  Brachypodium distachyon Lowell Ahart 1981-6-13 2848 Yuba Sierra Nevada. On west side of McGinn Hill, east of Loma Rica. 300 Comment
  JEPS118354  Brachypodium distachyon Lowell Ahart 2011-6-7 17422 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UC1153944  Brachypodium distachyon Beecher Crampton 1957-6-5 4164 Yuba site of Timbuctoo, near old Wells Fargo Store Timbuctoo Comment
  UCD33668  Brachypodium distachyon Beecher Crampton 1971-6-18 8741 Yuba Yuba County, Sierra Foothill Range Field Station, ca. 6.5 miles east of Browns Valley, east of headquarters. Comment
  UCD57001  Brachypodium distachyon Beecher Crampton 1957-6-5 4164 Yuba Opposite old Stewart and Bros. and Wells Fargo Store. Site of old Timtuctoo. Comment
  UCR168805  Brachypodium distachyon David Charlton 2005-5-16 8033 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  CHSC46911  Brickellia greenei Lowell Ahart 1980-8-12 2534 Yuba Slate Creek, a little below where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  CAS-BOT-BC127874  Brickellia greenei Lowell Ahart 1980-8-12 2534 Yuba On a gravel bar along Slate Creek 1250 Comment
  CAS-BOT-BC145431  Briza maxima Lowell Ahart 2007-5-14 13863 Yuba 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
  UCR232224  Briza maxima George K. Helmkamp, E. A. Helmkamp 2011-5-6 17210 Yuba East edge of Sacramento Valley, junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg. ) of Wheatland 56 Comment
  CAS-BOT-BC145502  Briza minor Gordon H. True 1963-4-17 1178 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Highway. 30 Comment
  CAS-BOT-BC145503  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
  SEINET3440065 Image available Briza minor George K. Helmkamp, E. A. Helmkamp 2011-5-6 17187 Yuba East edge of Sacramento Valley: Camp Far West Road, 0.3 mi N of the junction with Hokan lane, vicinity of Camp Far West Reservoir 105 Comment
  SEINET4344868  Briza minor A. Tiehm 1975-1 644 Yuba U.C. Sierra Foothill Field station 274 Comment
  UCD139146  Brodiaea R. E. Preston 1996-5-22 936 Yuba Beale Air Force Base. 30 Comment
  UCD77152  Brodiaea appendiculata Robert E. Preston 2005-4-20 2337 Yuba Olivehurst, 0.2 mi S of jct Hwy 70 and McGowan Parkway 17 Comment
  UCR231316  Brodiaea californica var. californica George K. Helmkamp, E. A. Helmkamp 2011-5-6 17196 Yuba East edge of Sacramento Valley, Camp Far West Road, 2.3 miles northwest of the junction at Camp Far West Reservoir, 5.3 miles NE (53 deg. ) of Wheatland 55 Comment
  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
  UCD77153  Brodiaea coronaria Robert E. Preston 2003-5-25 2147 Yuba Ca. 3.65 mi WSW of Smartville, along Hammonton-Smartville Rd. 98 Comment
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Jun 17 2014
  UCD139169  Brodiaea elegans subsp. elegans Barbara Yungert 1974-5-13 146 Yuba east side of road between the old headquarters and the river, Sierra Foothill Field Station. Comment
  CHSC113648  Brodiaea minor L. P. Janeway 2014-6-24 11414 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 480 m northeast of Marysville Road. 756 Comment
  CHSC22961  Brodiaea minor Robert A. Schlising 1963-5-3 2546 Yuba 29.4 miles west of Nevada City along Hwy 20. Comment
  SD240787  Brodiaea minor George K. Helmkamp, E. A. Helmkamp 2011-5-6 17198 Yuba East of Sacramento Valley: Camp Far West Road, 2.3 miles northwest of the junction at Camp Far West Reservoir, 5.3 miles NE (53a^z) of Wheatland (Camp Far West 7.5'Q) 54 Comment
  UCD77170  Brodiaea minor Robert E. Preston 2004-6-12 2258 Yuba 0.9 mi E of Dobbins, along Marysville Rd 644 Comment
  UCR231314  Brodiaea minor George K. Helmkamp, E. A. Helmkamp 2011-5-6 17198 Yuba East edge of Sacramento Valley, Camp Far West Road, 2.3 miles northwest of the junction at Camp Far West Reservoir, 5.3 miles NE (53 deg. ) of Wheatland 55 Comment
  CAS-BOT-BC484596  Brodiaea purdyi Ella Dales Cantelow 1940-5-12 3942 Yuba 6.7 mi. e. of Marysville on Hwy 20 to Grass Valley Comment
  CHSC112957  Brodiaea sierrae L. P. Janeway 2014-6-26 11422 Yuba Northern High Sierra Nevada. Plumas National Forest; small ephemeral meadow on a flattish bench at head of ephemeral northeastern tributary to Little Oregon Creek; 1.9 air km south-southeast of Pike County Peak; 0.24 km northeast of Oregon Hill Road, 0.15 km south of Peterson Ridge Road. 852 Comment
  CHSC113647  Brodiaea sierrae L. P. Janeway 2014-6-24 11415 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 480 m northeast of Marysville Road. 756 Comment
  CHSC69158  Brodiaea sierrae Lowell Ahart 1997-8-7 7826 Yuba On the west side of the dirt road, near a unnamed stream, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  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
  CAS-BOT-BC144293  Bromus arizonicus H. N. Bolander 1860-1-1 1546 Yuba Marsyville. Comment
  RSA21290  Bromus carinatus C. B. Wolf 1937-5-13 8635 Yuba Sierra Nevada Foothills, 2.7 miles below Stanfield Hill on road to Browns Valley 183 Comment
  UCD58207  Bromus carinatus Beecher Crampton 1954-5-10 1845 Yuba 6 miles south of Camptonville. Along Hwy. 49. North slope of the middle Yuba River. Comment
  UCD58309  Bromus carinatus Beecher Crampton 1962-4-24 6298 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  CDA14560  Bromus ciliatus G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3037 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  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
  UCD58444  Bromus commutatus Beecher Crampton 1957-6-5 4146 Yuba 1/2 mile W of Oregon House Post Office. Comment
  RSA0107419  Bromus diandrus George K. Helmkamp, Amy Barnes 2013-3-28 20259 Yuba Eastern Sacramento Valley: northbound exit road from CA-65, connecting with Forty Mile Road. 30 Comment
  UCD59483  Bromus diandrus Beecher Crampton 1962-4-24 6246 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCR257161  Bromus diandrus George K. Helmkamp 2014-4-17 22770 Yuba Sierra Nevada Foothills, Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville 264 Comment
  SEINET4391031  Bromus diandrus D. E. Selleck 1979-4-28 s.n. Yuba Sierra Fielid Station-UC Davis. Comment
  CHSC107156  Bromus hordeaceus L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10374 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants scattered throughout the meadow. 750 Comment
  CHSC97463  Bromus hordeaceus Lowell Ahart 2007-5-12 13823 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS118732  Bromus hordeaceus L. P. Janeway and Melanie Williams, Tim Hanson 2011-6-9 10374 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. French Corral 7.5' quad. Comment
  UCD58673  Bromus hordeaceus Barbara Yungert 1974-5-1 G- 2 Yuba Along SC-12 fence, southeastern bend in road, SC-14 project area. Sierra Foothill Field Station. Comment
  UCD58681  Bromus hordeaceus Beecher Crampton 1962-4-24 6243 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCR230632  Bromus hordeaceus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17201 Yuba East edge of Sacramento Valley, Spenceville Road, 4.2 miles northwest of Wheatland 55 Comment
  UCR231324  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 (47 deg. ) of Wheatland 56 Comment
  UCR258234  Bromus hordeaceus George K. Helmkamp, Amy Barnes 2013-3-28 20249 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  SEINET4391209  Bromus hordeaceus A. Tiehm 1975-4-25 633 B Yuba U.C. Sierra Foothill Field Station 198 Comment
  JEPS124414  Bromus japonicus Lowell Ahart, Susan Kephart, Jim Kephart 2015-6-4 20198 Yuba About 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. Comment
  CAS-BOT-BC162367  Bromus madritensis Peter H. Raven 1953-5-9 s.n. Yuba 3.7 miles from Browns Valley on Challenge Road. Comment
  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
  CHSC40951  Bromus orcuttianus J. D. Jokerst 1984-7-5 2082 Yuba Canyon of Deadwood Creek, between the creek and Weed Point. 883 Comment
  JEPS100266  Bromus orcuttianus Dean W. Taylor 2001-5-9 17639 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  UCD148339  Bromus orcuttianus G. Douglas Barbe; J. T. Howell, T. C. Fuller 1981-6-22 3037 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  CHSC107151  Bromus racemosus L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10375 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants scattered in an area of slight water sheet flow. 750 Comment
  UCD59699  Bromus sterilis Beecher Crampton 1962-4-24 6268 Yuba 5 miles east of Browns Valley. Sierra Foothill Range Field Station. 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
  UCD57065  Buchloe dactyloides R. E. Preston 1996-4-11 927 Yuba Beale Air Force Base. Adjacent to parking lot N of Air Combat Command. 33 Comment
  CHSC90486  Calandrinia ciliata Lowell Ahart 2005-3-11 11620 Yuba In the center of the poor dirt road, 100 yards west of a large rock outcrop, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 386 Comment
  JEPS118295  Calandrinia ciliata Lowell Ahart 2011-6-7 17409 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CHSC116033  Callitriche heterophylla var. heterophylla Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20649 Yuba North of the spillway area, at the west side and near top of Lake Francis Dam, below the high water line of Lake Francis, about 1-1/2 miles south of Dobbins. 512 Comment
  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
  CHSC32093  Calocedrus decurrens L. Ahart 1975-10-26 993 Yuba Home of Eugene Ahart, Fruitland Rd. 33 Comment
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Aug 28 2018
  CHSC14019  Calochortus albus J. A. Roberts 1973-4-12 12 Yuba 20 mi n of Hwy 20, 10 mi e of Marysville. 457 Comment
  CHSC3656  Calochortus albus Robert D. Briggs 1966-4-6 R- 113 Yuba One mile east of Smartsville, on hwy. #20. Comment
  UC672160  Calochortus albus Herbert L. Mason 1927-5-11 3722 Yuba near Dobbins (Sierra foothills); Sierra Comment
  UC477576  Calochortus coeruleus L. S. Smith May 1931 Yuba Camptonville Dist. Tahoe National Forest Comment
  SEINET7067129  Calochortus luteus A. G. Vestal 1947-4-29 s.n. Yuba About 5 miles west of Smartville on the Smartville Road. Coordinate datum: NAD27. UTM Zone 10, 640771mE, 4339031mN. Comment
  SEINET7072987  Calochortus luteus A. G. Vestal 1963-5-30 s.n. Yuba Dry Creek at junction with Peoria Road north of Sicard. Coordinate datum WGS84/NAD83. (39? deg. 14' 2" North Latitude, -121? deg. 20' 47" West Longitude. UTM Zone 10, 642723mE, 4343827mN. Coordinate datum: NAD27). Comment
  UCD169987  Calochortus luteus M. Sciutto-Creps 1998-4-26 36 Yuba 7 miles northeast of the town of Wheatland, in the property adjacent to the southeast end of Beale Air Force Base, about half a mile NE of Best Slough, throughout the whole grassland area. 43 Comment
  CAS-BOT-BC483434  Calochortus luteus Alice Eastwood 1921-5-22 s.n. Yuba Los Vergils Comment
  CAS-BOT-BC483435  Calochortus luteus Alice Eastwood 1921-5-22 10546 Yuba Los Vergils Comment
  SEINET8197375  Calochortus luteus C. Aarstad 1979-4-28 s.n. Yuba Junction of Rte 20 and North Fork of Yuba River in Browns Valley. 183 Comment
  CHSC10605  Calochortus monophyllus Lowell Ahart 1968-5-15 Yuba Near Bullards Bar Dam. 914 Comment
  CHSC112846  Calochortus monophyllus L. P. Janeway 2014-4-15 11225 Yuba Northern High Sierra Nevada. Plumas National Forest; about halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River), near Road 18N01A close to its lower end. 860 Comment
  CHSC32088  Calochortus monophyllus L. Ahart 1973-5-6 212 Yuba Near Challenge. 762 Comment
  SBBG16191  Calochortus monophyllus H. and M. Dearing 1939-5-6 3282 Yuba near Challenge Comment
  SBBG22463  Calochortus monophyllus H. and M. Dearing 1939-5-6 3283 C Yuba near Challenge Comment
  UC640273  Calochortus monophyllus H. and M. Dearing 1939-5-5 3283 Yuba near Challange Comment
  CAS-BOT-BC493079  Calochortus monophyllus Barbara T. Keller 1975-6-10 1504 Yuba Challange experimental Forest along La Porte Road near Challange. 762 Comment
  CAS-BOT-BC493080  Calochortus monophyllus Elmer I. Applegate 1934-5-2 8891 Yuba Near Indian Valley, northern Yuba County Comment
  CAS-BOT-BC493110  Calochortus monophyllus Peter H. Raven 1953-5-9 5470 Yuba 1 mile from Brownsville on road to Challenge Comment
  CAS-BOT-BC493121  Calochortus monophyllus L. S. Smith 1931-5-1 s.n. Yuba Burn west of Camptonville near road, Tahoe Forrest 548 Comment
  SEINET12044652  Calochortus monophyllus L. S. Rose 1933-1 33196 Yuba Brownsville 640 Comment
  UCD139558  Calochortus monophyllus Kathleen Keliher 1975-4-30 73 Yuba in front of entrance to Middle Brook Ranch, one and one half mile east of Dobbins on Marysville Road. 609 Comment
  UC477575  Calochortus nudus L. S. Smith May 1931 Yuba Camptonville Dist. Tahoe National Forest Comment
  JEPS28074  Calochortus superbus Rimo Bacigalupi and L. Heckard 1961-6-16 7829 Yuba 0.2 mi. w. of Hwy. 49 on rd. to Bullard Bar Dam and Dobbins (Tahoe Nat'l Forest); Tahoe Nat'l Forest 762 Comment
  UCD139576  Calochortus superbus Kathleen Keliher 1975-5-30 124 Yuba 2 miles west of Dobbins on Marysville Road. Comment
  CHSC44853  Calycadenia multiglandulosa Lowell Ahart 1977-7-31 1503 Yuba Near the Brownsville airstrip, about 1 1/2 air miles southwest of Brownsville. 548 Comment
  JEPS118681  Calycadenia multiglandulosa L. P. Janeway 2011-7-5 10487 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. French Corral 7.5' quad. Comment
  JEPS98515  Calycadenia multiglandulosa Lowell Ahart 2000-7-13 8581 Yuba On the south side of Ridge Road, about 1/4 mile west of Our House, about 2 miles (air) east of Celestial Valley, about 2 1/2 miles (air) southeast of Camptonville. 975 Comment
  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
  UCD129737  Calycadenia multiglandulosa Gerald D. Carr 1971-8-15 632 Yuba 0.6 mile north of Oregon House Post Office on road to Brownsville. Comment
  UCD129818  Calycadenia multiglandulosa Barbara Yungert 1974-5-15 159 Yuba aaround 200 yards from Dry Creek, Lower Lewis project area, Sierra Foothill Field Station. Comment
  RSA255478  Calycadenia multiglandulosa subsp. bicolor Gerald D. Carr 1971-8-15 632 Yuba 0.6 miles north of Oregon House Post Office on road to Brownsville Comment
  CAS-BOT-BC90913  Calycanthus occidentalis Barbara T. Keller 1975-6-10 1515 Yuba Willow Glen Road from Brownsville to Stanfield Hill. Comment
  CHSC117665  Calycanthus occidentalis Lowell Ahart 2016-8-30 21319 Yuba In ravine on the north side of a dirt road, about one mile east of Challenge. Comment
  SFV18641  Calycanthus occidentalis J. D. Dilley 2000-9-16 397 Yuba Sierra Nevada Oregon Creek picnic area on Highway 49, 18 miles north of Nevada City. 445 Comment
  UC1126247  Calycanthus occidentalis M. A. Elvin 1933-7-7 44 Yuba 2 mi e Oregon House; Smartsville Quad. 487 Comment
  CHSC116181  Camassia howellii Lowell Ahart 2015-6-16 20244 Yuba In a small meadow, near water ditch, about 100 yards south of the poor dirt road, about 3/4 mile southeast of the intersection of Weiss Road and Forbestown Road, about 2 miles (air) southwest of Forbestown. 829 Comment
  CHSC110318  Camassia quamash subsp. breviflora L. P. Janeway 2013-6-7 11131 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, one of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. 815 Comment
  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
  SEINET10462863  Campanula prenanthoides Clifton 1971-7-4 CLIFTON 324 Yuba CHALLENGE DISTURBED AREA. T19N R7E SEC. 17 853 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
  JEPS113508  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
  UCD114164  Capsella bursa-pastoris Barbara Yungert 1974-4-10 11 Yuba irrigated pasture along Porter Creek, SC-5 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC520406  Cardamine breweri Lowell Ahart 1978-5-31 1748 Yuba Edge of the South Fork of the Feather River, 0.5 mi above the Golden Trout Crossing, approx. 4 mi W of Sly Creek Reservoir, W of Strawberry Valley 750 Comment
  CHSC97495  Cardamine oligosperma Lowell Ahart 2007-5-12 13781 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  RSA715480  Cardamine oligosperma L. Ahart 2005-3-11 11600 Yuba West of a large rock outcrop, about 1/2 mile W of Marysville Road, about 1/2 mile N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile N of Loma Rica Road, about 5 miles (air) NE of Loma Rica. 386 Comment
  UCD80177  Cardamine oligosperma CNPS SN Foothill Team 2005-3-15 SNFN 0015 Yuba CDFG Spenceville Wildlife Area. The plot is accessed from Spenceville Road, approximately 1 mile east of intersection with Waldo Rd. and approximately 0.1 mile east of intersection with Jones Rd. 100 Comment
  JEPS106277  Cardamine pachystigma var. pachystigma Lowell Ahart 2004-4-27 10767 Yuba About 20 yards north of a drainage, about 50 yards east of the road, about 1/2 mile (air) southeast of Woodleaf 931 Comment
  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
  JEPS98356  Carduus pycnocephalus subsp. pycnocephalus Lowell Ahart 2000-5-25 8402 Yuba 6 air miles S of Smartville (a north branch of Dry Creek, 100 yds W of Smartville Road, about 2 mi N of intersection of Waldo Road and Smartville Road) 146 Comment
  CHSC63284  Carex amplifolia Lowell Ahart 1994-6-5 7301 Yuba On the bottom and sides of Costa Creek, on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  CHSC96958  Carex amplifolia Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-13 14296 Yuba On the south side of Hampshire Creek, on the southeast side of a large wet meadow, about 80 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  UC1552705  Carex amplifolia Frederica Bowcutt 1985-6-8 589 Yuba 1 air mi se Canptonville (along Oregon Creek, 12 air mi n of Nevada City); Tahoe National Forest, Oregon Creek 762 Comment
  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
  UCD140108  Carex aquatilis Beecher Crampton 1962-4-24 6289 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CHSC63188  Carex aurea Lowell Ahart 1994-6-27 7384 Yuba In a boggy meadow, north of the dirt road that goes from La Porte to the Poverty Hill Mine (County Road), east of Schwartz Meadow, about 4 miles north-east of Strawberry Valley. 1219 Comment
  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
  CHSC63192  Carex echinata subsp. echinata Lowell Ahart 1994-6-27 7385 Yuba Meadow, north of the dirt road that goes from La Porte Road to the Poverty Hill Mine (County Road), east of Schwartz Meadow, about 4 miles north-east of Strawberry Valley. 1219 Comment
  CHSC78275  Carex echinata subsp. echinata Lowell Ahart 2000-6-23 8508 Yuba Bog in a small meadow, about 200 yards east of the meadow along La Porte Road, about 50 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  CHSC96751  Carex echinata subsp. echinata Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-13 14299 Yuba On the south side of Hampshire Creek, on the southeast side of a large wet meadow, about 80 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  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
  JEPS113711  Carex echinata subsp. echinata Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-7-13 14299 Yuba On the south side of Hampshire Creek, on the southeast side of a large wet meadow, about 80 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills 1021 Comment
  JEPS117653  Carex echinata subsp. echinata Lowell Ahart 2010-7-27 16916 Yuba Meadow on the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. Along small streams in meadow 1219 Comment
  JEPS95415  Carex echinata subsp. echinata Lowell Ahart 1994-6-27 7385 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
  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
  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
  CHSC63286  Carex fracta Lowell Ahart 1994-6-5 7307 Yuba Small open meadow in forest, on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  CHSC96548  Carex gracilior L. P. Janeway 2006-5-24 8631 Yuba Northern Sierra Nevada Foothills. South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. 483 Comment
  RSA724936  Carex gracilior L. P. Janeway 2006-5-24 8631 Yuba South side of Frenchtown Road 1.2 road km northeast of Marysville Road and Oregon House. NAD83. 483 Comment
  CAS-BOT-BC94047  Carex hirtissima Peter F. Zika 2010-6-22 24979 Yuba W side of Challenge Cut-off, 2.5 air km NE of Brownsville, northern Sierra Nevada Highlands (n SNH) 755 Comment
  CHSC63193  Carex hirtissima Lowell Ahart 1994-6-27 7386 Yuba Along the south side of a small stream, east of the logging road, east of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  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
  JEPS121022  Carex hirtissima Peter F. Zika 2010-6-22 24979 Yuba W side of Challenge Cut-off, 2.5 air km NE of Brownsville Comment
  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
  SEINET7485288 Image available Carex hirtissima Peter F. Zika 2010-1 24979 Yuba W side of Challenge Cut-off, 2.5 air km NE of Brownsville, northern Sierra Nevada Highlands 755 Comment
  CHSC84197  Carex lemmonii Lowell Ahart 2003-7-6 10360 Yuba Along a small stream in a meadow, east of the power line, about 50 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  CHSC115302  Carex multicaulis Lowell Ahart 2015-4-30 20125 Yuba Open forest, on the south side of the gravel road, about 10 yards east of the gate, about 3/4 mile (air) southeast of Woodleaf. Mixed Evergreen Forest. 948 Comment
  CAS-BOT-BC32183  Carex multicaulis Lowell Ahart 1969-5-18 s.n. Yuba Slate Creek, 10 miles S of La Porte. 914 Comment
  UCD33113  Carex stipata var. stipata Beecher Crampton 1966-6-14 7758 Yuba 1 mile east of Brownsville on La Porte road. 731 Comment
  CAS-BOT-BC499133  Carex xerophila Peter F. Zika; L. P. Janeway 2012-5-16 25870 Yuba Ponderosa Way near LaPorte Road, picnic area N of airport, 2.7 air km WSW of Russ Hill, Brownsville 665 Comment
  CDA43057  Carex xerophila L. P. Janeway 2006-5-24 8619 Yuba Northern High Sierra Nevada Foothils.; East side of Ponderosa Way 1.3 km north of La Porte Road and Brownsville. Comment
  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
  CHSC102953  Carex xerophila L. P. Janeway 2006-5-24 8616 Yuba Northern Sierra Nevada Foothills. Along Ponderosa Way 1.3 road km southeast of Robinson Mill Road; 1.3 km southeast of Robinson Mills and Forbestown Road. 771 Comment
  HSC104265  Carex xerophila P. F. Zika, L. P. Janeway 2012-5-16 25871 Yuba Northern Sierra Nevada Foothill/Highlands boundary; Brownsville, 3 air mi. W of Ruff Hill, just east of junction of Jiggs Rd. and Ponderosa Way 715 Comment
  RSA0058984  Carex xerophila Peter F. Zika, L. P. Janeway 2012-5-16 25871 Yuba Just E of junction of Jiggs Road and Ponderosa Way, 3 air km W of Ruff Hill, Brownsville. Northern Sierra Nevada Foothill/Highlands boundary (n SNF/H). Adjacent to Brownsville dump. 715 Comment
  SD257103  Carex xerophila P. F. Zika, L. P. Janeway 2012-5-16 25871 Yuba Just E of junction of Jiggs Road and Ponderosa Way, 3.0 air km W of Ruff Hill, Brownsville. 715 Comment
  UCR261235  Carex xerophila Peter F. Zika, L. P. Janeway 2012-5-16 25871 Yuba Northern Sierra Nevada Range, foothill/highlands, just east of junction of Jiggs Road and Ponderosa Way, 3 air km west of Ruff Hill, Brownsvill 715 Comment
  UCD122152  Castilleja affinis Kathleen Keliher 1975-5-14 105 Yuba Near Road 5 and Cook Area, L 1-21 project area, Sierra Foothill Field Station. 243 Comment
  CHSC115303  Castilleja applegatei subsp. pinetorum Lowell Ahart 2015-5-9 20147 Yuba On the west side of the road, on the steep road cut, Highway 49, about one mile northeast of the intersection of Marysville Road and Highway 49, about 2 miles southwest of Camptonville. Mixed Evergreen Forest. 803 Comment
  JEPS124082  Castilleja applegatei subsp. pinetorum Lowell Ahart 2015-5-9 20147 Yuba About 1 mile northeast of the intersection of Marysville Road and Highway 49, about 2 miles southwest of Camptonville. Comment
  CHSC115166  Castilleja attenuata Lowell Ahart 2015-9-9 20146 Yuba On the east edge of Highway 49, about 1 mile northeast of the intersection of Marysville Road and dHighway 49, about 2 miles southwest of Camptonville. 803 Comment
  UCD37871  Castilleja attenuata Beecher Crampton 1962-4-24 6290 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD122329  Castilleja attenuata W. R. Powell 1968-4-24 1475 Yuba Along Spring Valley Road, 1 1/2 miles northwest of Browns Valley. 106 Comment
  JEPS113627  Castilleja campestris subsp. campestris Lowell Ahart 2007-5-12 13816 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC107122  Castilleja lacera L. P. Janeway 2011-6-2 10357 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  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
  UCD122592  Castilleja lineariloba Barbara Yungert 1974-4-25 89 Yuba SC-14 project area, Sierra Foothill Field Station. Comment
  CHSC115310  Castilleja pruinosa Lowell Ahart 2015-4-30 20135 Yuba On the east side of La Porte Road, about 2-1/4 miles air) southwest of Brownsville, about 2 miles (air) northeast of Rackedrby. 504 Comment
  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
  JEPS123877  Castilleja pruinosa Lowell Ahart 2015-4-30 20135 Yuba About 2 1/4 miles (air) southwest of the Brownsville, about 2 miles (air) northeast of Rackerby. Comment
  SD147493  Castilleja pruinosa Lowell Ahart 1980-6-19 2411 Yuba 4 miles east of Challenge 900 Comment
  SJSU14229  Castilleja pruinosa N. A. Hopkins 1989-4-28 1481 Yuba Ridge Rd to Allegheny c. 3 mi off Hwy 49 1219 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
  UCD80765  Castilleja tenuis CNPS SN Foothill Team 2005-6-1 SNFN 0173 d Yuba CDFG, Daugherty Hill Wildlife Area, in the 'C' shaped parcel located to the east of the Daugherty Hill unit. 623 Comment
  UCD112086  Ceanothus cuneatus Barbara Yungert 1974-4-14 35 Yuba east of Road 5, K 1-11 project area, Sierra Foothill Field Station. Comment
  UCD37863  Ceanothus cuneatus Beecher Crampton 1962-4-24 6275 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CAS-BOT-BC64377  Ceanothus diversifolius Elmer I. Applegate 1934-5-2 8891 Yuba Indian Valley Region, northern Yuba County. Comment
  CAS-BOT-BC50710  Ceanothus integerrimus Alice Eastwood 1921-5-22 10561 Yuba Los Vergils Comment
  UCR196981  Ceanothus integerrimus George K. Helmkamp, E. A. Helmkamp 2008-5-20 13466 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  SEINET12211866  Ceanothus integerrimus F. H. Utech 1990-6-5 90 -864 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  CHSC112855  Ceanothus lemmonii L. P. Janeway 2014-4-24 11231 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  CHSC113646  Ceanothus lemmonii L. P. Janeway 2014-5-12 11253 A Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 2.1 air km south-southeast of Oregon Peak, 0.2 km northeast of Marysville Road. 762 Comment
  CHSC93933  Ceanothus lemmonii L. P. Janeway 2006-5-24 8610 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
  RSA712847  Ceanothus lemmonii L. P. Janeway 2006-5-24 8610 Yuba Northern Sierra Nevada Foothills, along Ponderosa Way 1 road Km SE of Robinson Mill Road, 1.2 air km SE of Robbinson Mills and Forebestown road 768 Comment
  UC1070795  Ceanothus lemmonii M. A. Elvin 1933-7-1 33 Yuba 1 1/2 mi S of Virginia Ranch Smartsville Quad. 457 Comment
  UC1281465  Ceanothus lemmonii H. E. McMinn 1946-5-11 5505 Yuba Along highway from Dobbins to Comptonville Comment
  CHSC32103  Ceanothus prostratus L. Ahart 1975-5-4 749 Yuba Near Brownsville. 609 Comment
  CDA35772  Centaurea jacea J. R. Keck Jr., Horn 1989-8-23 PDR# 893580 Yuba North side of La Porte Rd. (E21) halfway between Challenge and Woodleaf. 0 Comment
  UCD130041  Centaurea melitensis Beecher Crampton 1971-6-18 8736 Yuba Sierra Foothill Range Field Station. Ca. 7 miles E of Browns Valley. 'Black Oak Pass' area. Comment
  JEPS113487  Centaurium muehlenbergii Lowell Ahart 2007-6-30 14228 Yuba Sides of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 29 Comment
  JEPS21726  Centaurium muehlenbergii Alice Eastwood 1913-7-3 Yuba Wheatland Comment
  UC878346  Centaurium muehlenbergii Alice Eastwood 1913-7-3 3411 Yuba Wheatland Comment
  UCR169012  Centaurium muehlenbergii David Charlton 2005-5-16 8001 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
  CDA14558  Centaurium tenuiflorum G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3035 Yuba 1.4 miles west of New Bullards Bar Dam, between Log Cabin and Camptonville. 609 Comment
  CHSC113188  Centaurium tenuiflorum Lowell Ahart 2013-11-30 19308 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
  CHSC116112  Centaurium tenuiflorum Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20637 Yuba On the west side of the outflow area at the bottom of Lake Francis Dam, Lake Francis, about 1-1/2 miles south of Dobbins. 479 Comment
  CHSC47411  Centaurium tenuiflorum Lowell Ahart 1981-6-13 2856 Yuba Along the banks of a small stream, west of McGinn Hill, east of Loma Rica. 304 Comment
  CHSC96870  Centaurium tenuiflorum Lowell Ahart 2007-6-30 14228 Yuba Sides of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  UC1069524  Centromadia fitchii M. A. Elvin 1933-6-7 21 Yuba 3 mi se O'Brien's Ranch; Smartsville Quad. 60 Comment
  CAS-BOT-BC288822  Centromadia fitchii Mrs. H. C. Cantelow 1940-5-13 3060 Yuba E of Marysville on road to Grass Valley Comment
  CAS-BOT-BC288823  Centromadia fitchii Mrs. H. C. Cantelow 1940-5-13 s.n. Yuba E of Marysville, on Highway 20 to Grass Valley 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
  SBBG1146  Cephalanthera austiniae H. and M. Dearing 1939-5-8 3503 Yuba near Camptonville Comment
  CHSC78137  Cerastium glomeratum Lowell Ahart 2000-6-11 8464 Yuba On the sides of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  RSA715478  Cerastium glomeratum L. Ahart 2005-3-11 11605 Yuba West of a large rock outcrop, about 1/2 mile W of Marysville Road, about 1/2 mile N of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile N of Loma Rica Road, about 5 miles (air) NE of Loma Rica. 386 Comment
  UCD14963  Cerastium glomeratum Susan J. Schmickle 1977-4-16 2 Yuba California, Yuba Co.; at the UC Sierra Field Station, northwest off of Road 4; Comment
  CAS-BOT-BC388245  Cerastium glomeratum Susan J. Schmickle 1977-4-16 2 Yuba At the UC Sierra Field Station, northwest off of Road 4 Comment
  UCD105667  Cercis occidentalis Barbara Yungert 1974-5-16 162 Yuba Along Dry Creek, below Porter fence line, P-2 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC136994  Cercocarpus betuloides var. betuloides Lowell Ahart 1977-4-18 s.n. Yuba Along Dry Creek about 10 miles northeast of Marysville 100 Comment
  CAS-BOT-BC140761  Chamaebatia foliolosa Elmer I. Applegate 1934-5-2 8896 Yuba Near Indian Valley Comment
  SEINET3814609 Image available Chamaebatia foliolosa Lewis S. Rose 1933-5-27 33204 Yuba Woodleaf. 1052 Comment
  SEINET7073622  Chamaebatia foliolosa A. G. Vestal 1955-5-21 s.n. Yuba About 17.8 miles east of Oroville on Forbestown Road. UTM Zone 10, 647812mE, 4376141mN. Coordinate datum: NAD27. Comment
  CHSC69139  Chamaesyce maculata Lowell Ahart 1997-8-7 7806 Yuba On the north side of New York Flat Road, about one mile northwest of La Porte Road, about 1 mile north of Brownsville. 731 Comment
  CHSC81781  Chamaesyce maculata Lowell Ahart 2001-11-2 9399 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  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
  CHSC76107  Chamaesyce nutans Lowell 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. 24 Comment
  JEPS95853  Chamaesyce nutans Lowell Ahart 1999-9-5 8191 Yuba on the disturbed area on the south side of Woodruff Lane; just west of Kimball Lane; about 5 miles (air) northeast of Marysville 24 Comment
  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
  HSC104009  Chamaesyce serpillifolia subsp. serpillifolia L. Ahart 2013-11-30 19299 Yuba About 2.5 mi. W of Oregon House, ~ 100 yds. N of Marysville Rd.; on the sides of a deep wash (Willow Glen Creek), NW of Dry Creek, below the high water line of Collins Lake 357 Comment
  CAS-BOT-BC70099  Cheilanthes gracillima C. E. Dotey s.n. Yuba unspecified Comment
  JEPS35374  Cheilanthes gracillima G. E. Davenport 1877-1 Yuba Comment
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Jun 28 2010
  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
  JEPS113488  Chenopodium album Lowell Ahart 2007-6-30 14238 Yuba East and west of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  JEPS115017  Chenopodium ambrosioides var. suffruticosum Lowell Ahart 2007-11-1 14548 Yuba On the north side of Loma Rica Road, east of the Fire Station, about 3/4 mile east of Loma Rica 146 Comment
  CDA14559  Chenopodium botrys G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3036 Yuba 1.4 miles west of New Bullards Bar Dam, between Log Cabin and Camptonville. 609 Comment
  RSA795982  Chlorogalum angustifolium James R. Shevock, Robert Holland 1985-5-6 11125 Yuba Beale Air Force Base E of Marysville. Pools adjacent to runway. 40 Comment
  CAS-BOT-BC498792  Chlorogalum angustifolium Peter H. Raven 1953-5-9 5485 Yuba Flat soil of red plains ca. 4 mi. from Marysvlle on road to Grass Valley Comment
  CAS-BOT-BC498793  Chlorogalum angustifolium Gordon H. True; J. T. Howell 1967-6-13 3552 Yuba Open grassy flats and slopes - abundant. Ca. 5 miles east of Wheatland and 1 mile north of Bear River 54 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
  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
  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
  CAS-BOT-BC36351  Chrysolepis sempervirens Alice Eastwood 1918-4-7 6804 Yuba on Hills above North Fork & Yuba Rivers Comment
  UCD81491  Cicendia quadrangularis Christopher Michael Bronny 2009-3-23 3 Yuba Lower Sierra Nevada foothills. Area near Loma Rica. 158 Comment
  SEINET7042660  Cirsium occidentale A. G. Vestal 1963-5-30 s.n. Yuba Turn off to Timbuctoo at Yuba river. Smartville quadrangle UTM Zone 10, 644012mE, 4342272mN. Comment
  CAS-BOT-BC228729  Cistanthe umbellata Lowell Ahart 1980-8-12 2548 Yuba Along Slate Creek 1250 Comment
  CHSC46130  Clarkia biloba subsp. brandegeeae Lowell Ahart 1981-6-13 2846 Yuba Along the new gravel road, north-east side of McGinn Hill, east of Loma Rica. 274 Comment
  RSA18618  Clarkia biloba subsp. brandegeeae Carl B. Wolf 1937-6-11 8779 Yuba Sierra Nevada Foothills, 1.6 miles NW of Stanfield Hill, along a fork of S. Honcut Creek 305 Comment
  UC1299415  Clarkia biloba subsp. brandegeeae Freed W. Hoffman 1946-6-14 742 Yuba near North San Juan; North Fork Yuba River Comment
  CAS-BOT-BC164161  Clarkia concinna Anna Cramsie 1933-6-1 s.n. Yuba Smartville Comment
  SEINET12196708  Clarkia gracilis F. H. Utech 1990-6-5 90 -863 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  SJSU10991  Clarkia gracilis subsp. gracilis J. B. Willis Jr. 1969-4-27 70 Yuba S bank Yuba R on old stage rd to Timbuctoo just off Hwy 20, 18 mi E of Marysville Comment
  RSA0004430  Clarkia mildrediae L. P. Janeway 1995-7-15 4854 Yuba Inner canyon of Slate Creek, 3 mi northeast of Strawberry Valley; along Road 10N35 2.15 mi northeast of Road 20N04. Southwest facing road cut bank through greenstone and metamorphic rocks. 1006 Comment
  CAS-BOT-BC163270  Clarkia mildrediae subsp. lutescens Lowell Ahart 1980-7-25 2486 Yuba Near Slate Creek 1200 Comment
  CHSC89899  Clarkia mildrediae subsp. lutescens M. K. Hayden; Z. E. Diggory 2004-6-25 Yuba Northern High Sierra Nevada. Located at Slate Creek Diversion across from the intake structure. 1066 Comment
  JEPS125979  Clarkia mildrediae subsp. lutescens D. W. Taylor 2001-6-18 17783 Yuba Ca 2.5 air miles NE of Strawberry Valley; canyon of Slate Creek along Forest Road 35 about 0.5 miles above the bridge on the S-facing canyon slope. Comment
  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
  SEINET7072981  Clarkia purpurea subsp. quadrivulnera A. G. Vestal 1963-5-29 s.n. Yuba About 0.4 mile west of Erle Road on Hammonton-Smartville Road. UTM Zone 10, 638165mE, 4337165mN. Coordinate datum: NAD27). Comment
  CAS-BOT-BC163417  Clarkia purpurea subsp. quadrivulnera Lillian S. Mott 1965-4-21 LM 6548 Yuba Hiway 20 to Marysville 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
  NY1085604  Clarkia stellata R. C. F. Bacigalupi 1927-7-2 1584 Yuba Highway to Downeville about 8 miles north east of Camptonville Comment
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Nov 9 2011
  POM161753  Clarkia stellata R. C. Bacigalupi 1927-7-2 1584 Yuba Highway to Downieville about 8 mi NE of Camptonville. Comment
  UCD147082  Clarkia unguiculata Chuck Hughes 2013-5-2 367 Yuba Northwest margin of Camp Far West Reservoir. 93 Comment
  UCD37881  Claytonia perfoliata Beecher Crampton 1962-4-24 6305 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  SEINET5337776  Clematis lasiantha C. Aarstad 1979-4-28 s.n. Yuba At jct. of Rt. 20 and north fork of Yuba in Browns Valley. 183 Comment
  UCD123625  Collinsia heterophylla Barbara Yungert 1974-5-9 101 Yuba northeast of Upper Schubert project area, Sierra Foothill Field Station. Comment
  CHSC47689  Collinsia tinctoria Lowell Ahart 1981-6-13 2844 Yuba North-east side of McGinn Hill, east of Loma Rica. 274 Comment
  CHSC63260  Collomia heterophylla Lowell Ahart 1994-6-5 7297 Yuba On the north side of Costa Creek, on the south side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  POM161752  Collomia heterophylla R. C. Bacigalupi 1927-7-2 1582 Yuba Road to Downieville, 2 miles west of Camptonville Comment
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Nov 9 2011
  JEPS123869  Collomia tinctoria Lowell Ahart 2015-4-30 20129 Yuba About 1 1/4 miles (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. Comment
  UCR189626  Convolvulus arvensis George K. Helmkamp, E. A. Helmkamp 2007-8-29 12839 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 Comment
  UCR201900  Convolvulus arvensis George K. Helmkamp, E. A. Helmkamp 2008-10-6 14200 Yuba Sacramento Valley, junction of CA-65 and Ostrom No. 3 Road, southeast of Olivehurst 24 Comment
  SEINET7134343  Convolvulus arvensis J. Ridley 1959-4-19 21 Yuba 1 mile east of Smartville in open field on north side of highway 20 61 Comment
  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
  JEPS95066  Cordylanthus tenuis subsp. tenuis Lowell Ahart 1997-8-7 7813 Yuba 3 air mi se of Challenge (on n. side of dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  CAS-BOT-BC209439  Cornus nuttallii Lloyd W. Swift 1932-5-12 57 Yuba Plumas National Forest. Clipper Mills 1066 Comment
  JEPS112920  Cornus nuttallii Dean W. Taylor 2001-7-31 17849 Yuba creek along Forest Road 20N35 tributary to Brushy Creek near Diamond Ravine (ca. 3 air miles SW of Union Hill) 1127 Comment
  UCD117173  Cornus nuttallii Kathleen Keliher 1975-4-30 74 Yuba Along road between Bullards Bar Dam and Challenge. 762 Comment
  CDA38547  Cornus nuttallii T. C. Fuller 1961-9-21 7028 Yuba Moonshine Ridge, ca. 5 mi. west of Camptonville. 0 Comment
  SEINET8083560  Cornus nuttallii D. E. Selleck 1979-4-28 s.n. Yuba About 3 miles north of highway junction 140 and 70. 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
  JEPS95808  Coronopus didymus Lowell Ahart 1999-9-17 8250 Yuba Sam Shintaffer Farm; south of Woodruff Lane; south of Mathews Road; about 1/4 mile south of Sam Shintaffer's rice dryer; about 4 1/2 miles (air) northeast of Marysville 24 Comment
  CHSC116269  Crassula aquatica Lowell Ahart 2015-11-19 20690 Yuba 100 yards or more north of spillway area, below high water line, west of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  CHSC97650  Crassula tillaea Lowell Ahart 2007-5-12 13788 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCR200886  Croton setiger George K. Helmkamp, E. A. Helmkamp 2008-9-18 14129 Yuba Foothills, northern Sierra Nevada Mountains, Bullards Bar Dam, along Marysville Road, 6 miles southwest of its junction with CA-49 616 Comment
  HSC7972  Croton setiger T. F. Newman 1965-10-9 6552 Yuba Carnes Ranch, 10 mi. N of Marysville 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
  UCD33229  Crucianella angustifolia Beecher Crampton 1967-5-17 7945 Yuba Yuba County, 1/2 mile west of Timbuctoo. Comment
  SEINET7042658  Crucianella angustifolia A. G. Vestal 1963-5-30 s.n. Yuba Turn off to Timbuctoo at Yuba river. Smartville quadrangle UTM Zone 10, 644012mE, 4342272mN. Comment
  JEPS115048  Crypsis alopecuroides Lowell Ahart 2007-11-8 14591 Yuba On the strand of Camp Far West Reservoir, about 1/4 mile north of Rock Creek, about 6 1/2 miles (air) northeast of Sheridan 68 Comment
  SEINET10661810  Crypsis alopecuroides Lowell Ahart 2007-11-8 Ahart 14591 Yuba T14N, R6E, Section 15. About 1.4 mile north of Rock Creek, on the strand of Camp Far West Reservoir, about 6 1/2 miles (air) northeast of Sheridan. 69 Comment
  JEPS102534  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
  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
  CHSC10644  Cupressus macnabiana Lowell Ahart 1969-1-25 Yuba Near Challenge. 914 Comment
  CHSC43501  Cupressus macnabiana Lowell Ahart 1969-1-25 24 Yuba Near the Brownsville dump, about 2 miles west of Brownsville. 609 Comment
  CHSC96604  Cupressus macnabiana L. P. Janeway 2006-5-24 8627 Yuba Northern Sierra Nevada Foothills. Along Forsythe road 2.7 road km south of New York House Road; above Prince Albert Creek. 604 Comment
  NY16723  Cupressus macnabiana C. B. Wolf 1934-10-4 6157 Yuba This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  NY16727  Cupressus macnabiana C. B. Wolf 1934-10-4 6156 Yuba This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  NY16728  Cupressus macnabiana C. B. Wolf 1934-10-4 6156 Yuba This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA17594  Cupressus macnabiana C. B. Wolf, E. R. Johnson 1934-10-3 6151 Yuba Texas Hill, 2 miles west of Dobbins. Sierra foothills 549 Comment
  RSA17596  Cupressus macnabiana C. B. Wolf, E. R. Johnson 1934-10-4 6156 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
  UC699597  Cupressus macnabiana Richard Sias 1945-3-9 Yuba Challenge Challenge (sw slope of rocky ridge) 914 Comment
  NY16724  Cupressus macnabiana C. B. Wolf 1934-10-3 6151 Yuba This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SEINET10531459  Cupressus macnabiana Carl B. Wolf, E. R. Johnson 1934-10-4 Wolf 2218 Yuba Siera Nevada foothills, N side Indiana Creek, 1 7/10 mi W of Indiana Ranch. Upper sonoran:- Digger Pines, Quercus wislizenii. Sun. Rocky S slope. 550 Comment
  SEINET3863434 Image available Cupressus macnabiana Beecher Crampton 1972-2-14 8769 Yuba Ca. 1.5 miles N.N.E. of Oregon House.; 0 Comment
  SBBG121438  Cuscuta campestris L. Ahart 2007-11-8 14578 Yuba strand of Camp Far West Reservoir, ca. 0.5 mi S of Rock Crk, ca. 1/8 mi N of Bear River, ca. 6 mi (air) NE of Sheridan 242 Comment
  CHSC97652  Cuscuta howelliana Lowell Ahart 2007-5-12 13789 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113722  Cuscuta howelliana Lowell Ahart 2007-5-12 13789 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CDA33432  Cuscuta japonica Todd Quist & Steve Andersen 2008-12-1 PDR# 1295535 Yuba Marysville; 5667 Tish Circle. 0 Comment
  JEPS115023  Cuscuta pentagona Lowell Ahart 2007-11-1 14536 Yuba On Xanthium strumarium, on the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  RSA727526  Cuscuta pentagona L. Ahart 2007-11-8 14578 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 74 Comment
  CHSC47674  Cuscuta subinclusa Lowell Ahart 1989-9-3 6386 Yuba On the west side of Ponderosa Way, west of the Brownsville Dump, about 1 mile south-west of Brownsville. 609 Comment
  CHSC97486  Cynodon dactylon Lowell Ahart 2007-5-14 13845 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  UCD60074  Cynodon dactylon Beecher Crampton 1957-6-5 4148 Yuba 1/2 mile W of Oregon House Post Office. Comment
  UCD119167  Cynoglossum grande Kathleen Keliher 1975-5-15 108 Yuba Along Cleaveland Road, 3 miles east of Camptonville. 914 Comment
  CHSC107310  Cynosurus echinatus L. P. Janeway 2011-7-5 10492 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. 750 Comment
  CHSC108211  Cynosurus echinatus Lowell Ahart 2011-6-7 17429 Yuba East of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  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
  POM319499  Cynosurus echinatus Patricia Wilder 1971-6-23 5200 Yuba West outskirts of the town of Challenge in a vacant lot; 20 miles east of Oroville. 762 Comment
  UCD60177  Cynosurus echinatus Beecher Crampton 1965-6-17 7382 Yuba 2 miles south Brownsville, Willow Glen Road. 792 Comment
  CHSC69436  Cyperus difformis Lowell Ahart 1997-8-13 7684 Yuba On the south side of Scott Forbes Road, 1/4 mile east of the intersection of Scott Forbes Road and Peoria Road, just east of Gray Drive, about 2 1/4 miles (air) east of Browns Valley. 91 Comment
  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
  CHSC69457  Cyperus eragrostis Lowell Ahart 1997-8-30 7879 Yuba On the west side of the dirt road, near a road culvert, about one mile (air) south of Woodleaf. 944 Comment
  JEPS94449  Cyperus eragrostis Lowell Ahart 1997-8-30 7879 Yuba about 1 air mi s of Woodleaf (on w side of the dirt road, near a road culvert) 944 Comment
  SEINET10585760  Cyperus eragrostis Lowell Ahart 2007-11-1 Ahart 14540 Yuba T18N, R8E, southwest 1/4 Section 3. On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  SEINET9772565 Image available Cyperus eragrostis Richard Carter 2006-7-31 Yuba 12.5 mi ENE Marysville jct. Hwy CA 20 and Hwy CA 70, by Hwy CA 20 Comment
  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
  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
  JEPS103483  Cyperus erythrorhizos Lowell Ahart 2002-10-8 9945 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
  CHSC23371  Cyperus flavescens Lowell Ahart 1975-9-11 Yuba Pasture on the Eugene Ahart Ranch in Marysville. 30 Comment
  JEPS95784  Cyperus iria Lowell Ahart 1999-9-5 8197 Yuba about 5 miles (air) northeast of Marysville; ; on the disturbed area on the south side of Woodruff Lane; just west of Kimball Lane; about 5 miles (air) northeast of Marysville 24 Comment
  CHSC76302  Cyperus niger Lowell Ahart 1999-9-17 8256 Yuba On the edge of a drain ditch, Sam Shintaffer Farm, on the west side of Kimball Lane, near the intersection of Kimball Lane and Hallweed Blvd., about 3/4 mile south of Sam Shnitaffer's rice dryer, about 4 1/4 miles (air) northeast of Marysville. 22 Comment
  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
  SEINET13709327  Cyperus niger Lowell William Ahart, Lowell William Ahart 1999-1 8256 Yuba Cyperus, 4.25 Air Mi NE Marysville Comment
  CHSC43569  Cyperus rotundus Lowell Ahart 1978-10-28 1819 Yuba In the yard of Mr. and Mrs. Marion Bew, at H and 13th Street, Marysville. 30 Comment
  NY663864  Cyperus rotundus L. Ahart 1978-10-28 s.n. Yuba H & 13th Streets, Marysville Comment
  RSA299224  Cyperus rotundus L. Ahart 1978-10-28 s.n. Yuba H and 13th streets, Marysville Comment
  CHSC10804  Cytisus scoparius Lowell Ahart 1968-4-21 Yuba Five miles S.E. of Challenge. 609 Comment
  JEPS100265  Cytisus scoparius Dean W. Taylor 2001-5-9 17638 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  SEINET5327050  Cytisus scoparius M. J. Williams 1967-5-14 s.n. Yuba Camptonville 914 Comment
  SD236138  Dactylis glomerata G. K. Helmkamp, E. A. Helmkamp 2008-5-20 13474 Yuba Sierra Nevada Mountains Foothills: along CA-49, 466 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
  CHSC112950  Danthonia californica var. americana L. P. Janeway 2014-6-26 11421 Yuba Northern High Sierra Nevada. Plumas National Forest; small ephemeral meadow on a flattish bench at head of ephemeral northeastern tributary to Little Oregon Creek; 1.9 air km south-southeast of Pike County Peak; 0.24 km northeast of Oregon Hill Road, 0.15 km south of Peterson Ridge Road. 852 Comment
  CHSC84454  Danthonia californica var. americana Lowell Ahart 2003-7-6 10368 Yuba In meadow, east of the power line, about 60 yards northwest of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  CHSC95029  Danthonia californica var. americana L. P. Janeway 2006-5-24 8615 Yuba Northern High Sierra Nevada Foothills. Along Ponderosa Way 1.3 road km southeast of Robinson Mill Road; 1.3 air km southeast of Robinson Mills and Forbestown Road. Moderate slope, south-facing. 771 Comment
  CHSC95035  Danthonia californica var. americana L. P. Janeway 2006-5-24 8620 Yuba Northern High Sierra Nevada Foothills. East side of Ponderosa Way 1.3 km north of La Porte Road and Brownsville. 686 Comment
  UC1153912  Danthonia californica var. americana Beecher Crampton 1957-6-5 4159 Yuba 1.3 mi e Oregon House store Comment
  UCD60681  Danthonia californica var. americana Beecher Crampton 1966-6-14 7763 Yuba 1 mile west of Brownsville. Comment
  UCD60689  Danthonia californica var. americana Beecher Crampton 1957-7-5 4159 Yuba 1.3 miles east of Oregon House Store. Comment
  UCD60730  Danthonia californica var. americana Beecher Crampton 1965-6-17 7380 Yuba 4 miles S of Brownsville, Willow Glen Road. 670 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
  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
  CHSC108196  Daucus pusillus Lowell Ahart 2011-6-7 17370 Yuba Grassy road margin, about 50 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UC635338  Delphinium gracilentum H. L. Mason 1927-5-11 3732 Yuba near Dobbins 457 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
  CAS-BOT-BC10237  Delphinium hesperium R. K. Wellman 1981-5-17 025 Yuba Junction of county roads E-20 and E-21 152 Comment
  UCD96546  Delphinium patens W. R. Powell 1968-5-15 1497 Yuba On Fountain House Road, 2 miles northeast of Dobbins. 792 Comment
  POM270647  Delphinium patens H. L. Mason 1927-5-11 3732 Yuba Near Dobbin. 457 Comment
  UCD96557  Delphinium patens Barbara Yungert 1974-4-6 54 Yuba Near path behind U.S.G.S. Stream Measuring Station, below Englebright Dam, Sierra Foothill Field Station. 152 Comment
  CAS-BOT-BC192649  Deschampsia danthonioides Gordon H. True 1963-4-23 1191 Yuba About 10 miles east of Marysville on Marysville-Grass Valley Highway 30 Comment
  SEINET4566882  Deschampsia danthonioides A. Tiehm 1975-1 645 Yuba U.C. Sierra Foothill Field Station 274 Comment
  UCD62773  Deschampsia danthonioides Beecher Crampton 1963-5-11 7322 Yuba 2.5 miles southwest of Brown's Valley. Comment
  CDA31979  Descurainia sophia L. Ahart 2007-5-12 13782 Yuba Along road to the power towers, about 20 yards south of the first power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. Comment
  JEPS113413  Descurainia sophia Lowell Ahart 2007-5-12 13782 Yuba Dry red bare soil, east of the dirt road, along road to the power towers, about 20 yards south of the first power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  RSA726956  Descurainia sophia L. Ahart 2007-5-12 13782 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  UCR206958  Dicentra formosa George K. Helmkamp, E. A. Helmkamp 2009-5-28 14830 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 Comment
  UCD95518  Dicentra formosa Kathleen Keliher 1975-4-30 78 Yuba Along Marysville Road near Oregon Creek. 762 Comment
  CAS-BOT-BC402379  Dicentra formosa subsp. formosa Rimo Bacigalupi 1927-7-2 1592 Yuba Halfway to Downieville about 8 miles northeast of Camptonville Comment
  UCD114219  Dicentra formosa subsp. formosa R. N. Raynor 1939-3-25 s.n. Yuba Near Marysville. Comment
  CAS-BOT-BC402557  Dicentra pauciflora M. Boone 1981-5-15 043 Yuba Found highway 49 2 miles N. of Downyville [Downieville] 1219 Comment
  CAS-BOT-BC253651  Dichanthelium acuminatum subsp. acuminatum Lowell Ahart 1979-6-25 s.n. Yuba 2 miles E of Challenge 700 Comment
  JEPS98606  Dichanthelium acuminatum subsp. fasciculatum Lowell Ahart 2000-6-19 8492 Yuba In a meadow, ca 100 yards N of New York Flat Road, ca 1 1/4 miles (air) NE of Brownsville, ca 2 1/4 miles (air) W of Challenge. 731 Comment
  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
  UC592761  Dichelostemma capitatum Carl B. Wolf 1937-6-11 Yuba 1.6 mi nw Stanfield Hill (along a fork of s Honcut Creek); Sierra Nevada Foothills, Honcut Creek 304 Comment
  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
  CAS-BOT-BC483644  Dichelostemma capitatum Peter H. Raven 1953-5-9 5469 Yuba 1 mile from Brownsville on road to Challenge Comment
  CHSC100774  Dichelostemma capitatum subsp. capitatum L. P. Janeway 2008-5-11 9358 Yuba Northern High Sierra Nevada. About 0.8 km north-northeast of Challenge; Golden Gate Ravine side of the ridge between that and Jordan Creek; west side of Road 19N04 1.1 km north-northwest of Challenge-La Porte Road. At top of dry northwest-sloping swale. 1012 Comment
  UCR257127  Dichelostemma capitatum subsp. capitatum George K. Helmkamp 2014-4-17 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 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
  UC1133992  Dichelostemma multiflorum H. S. Yates 1933-5-23 3626 Yuba 2 mi w Cabbage Patch; Smartsville Quad. 91 Comment
  SEINET3132583  Dichelostemma multiflorum L. S. Rose 1940-5-28 40405 Yuba Dobbins 518 Comment
  SEINET7042609  Dichelostemma multiflorum A. G. Vestal 1963-5-29 s.n. Yuba Olivehurst-Smartville Road [presently Hammonton- Smartville Road]. 0.4 mile west of road south to Beale Air Force Base [Smartville Road]. Smartville quadrangle UTM Zone 10, 646242mE, 4339869mN. Comment
  UCD113420  Dichelostemma multiflorum Barbara Yungert 1974-5-3 108 Yuba West side of road, near cattle guard and U.C. sign, west of station, Sierra Foothill Field Station. Comment
  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
  CAS-BOT-BC501114  Dichelostemma volubile Alice Eastwood 1921-5-22 10521 Yuba Los Vergils Comment
  CDA42982  Digitaria sanguinalis L. Ahart 2013-11-3 19302 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. Comment
  CHSC113174  Digitaria sanguinalis Lowell Ahart 2013-11-30 19302 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  CHSC69460  Digitaria sanguinalis Lowell Ahart 1997-8-13 7868 Yuba On the south side of Scott Forbes Road, 1/4 mile east of the intersection of Scott Forbes Road and Peoria Road, just of Gray Drive, about 2 1/4 miles (air) east of Browns Valley. 91 Comment
  JEPS121319  Digitaria sanguinalis Lowell Ahart 2013-11-30 19302 Yuba On the sides of a deep wash (Willow Glen Creek), NW of Dry Creek, below the high water line of Collins Lake, about 100 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  JEPS94351  Digitaria sanguinalis Lowell Ahart 1997-8-13 7868 Yuba about 2 1/4 air mi e of Browns Valley (on s side of Scott Forbes Road, 1/4 mi e of intersection of Scott Forbes Road and Peoria Road, just e of Gray Drive); Scott Forbes Road 91 Comment
  UCD64095  Digitaria sanguinalis Beecher Crampton 1964-10-22 7224 Yuba 3 miles east of Brown's Valley, Dry Creek. Comment
  CAS-BOT-BC150266  Diplacus grandiflorus John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54075 Yuba 1.4 miles southwest of Bullards Bar Dam on road to Challenge 609 Comment
  SEINET13765312 Image available Diplacus grandiflorus Mary Anne Brayton 1964-1 15 Yuba Harry L. Englebright Dam - south shore near dam, State Highway 20, 20 miles northwest of Marysville 183 Comment
  CAS-BOT-BC151758  Diplacus kelloggii Alice Eastwood 1921-5-22 10550 Yuba Los Vergils Comment
  CAS-BOT-BC151759  Diplacus kelloggii Gordon H. True 1963-5-2 1209 Yuba Oregon Creek at jct. with middle Yuba River, at Freeman's Crossing - Sierra Nevada 457 Comment
  CAS-BOT-BC151635  Diplacus torreyi L. Beane; A. M. Vollmer 1951-7-1 192 Yuba Brownsville 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
  JEPS115018  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
  JEPS120505  Dittrichia graveolens M. S. Williams, T. M. Hanson 2012-10-31 Yuba Northern High Sierra Nevada. Plumas National Forest; approximately 1.3 air miles northeast of Challenge (1.7 road miles). Comment
  SEINET8561734  Dodecatheon hansenii A. Tiehm 1975-1 653 Yuba U.C. Sierra Foothill Field Station. 396 Comment
  UCD118967  Dodecatheon hendersonii Barbara Yungert 1974-4-8 9 Yuba West of Forbes Hill Road, H-9 project area, Sierra Foothill Field Station. Comment
  CHSC43509  Dopatrium junceum Lowell Ahart 1977-8-31 1559 Yuba On Shintaffer Farms, about 2 miles north-east of Marysville. 27 Comment
  CDA41425  Dopatrium junceum D. L. Wilson 1975-8-7 s.n. Yuba Ramirez Road, Marysville. 0 Comment
  UCR168801  Downingia David Charlton 2005-5-16 8029 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  SEINET7072552  Downingia bacigalupii A. G. Vestal 1963-5-7 s.n. Yuba About 3.5 miles north of Wheatland on Jasper Lane. Coordinate datum: NAD 27. UTM Zone 10, 636590mE, 4223573mN. Comment
  RSA21666  Downingia bicornuta C. B. Wolf 1937-5-18 8736 Yuba SacramenoValley, 2 mi S of Marysville. 18 Comment
  RSA389177  Downingia bicornuta C. B. Wolf 1937-5-18 8736 Yuba Sacramento Valley, 2 mi S of Marysville 18 Comment
  UC718544  Downingia bicornuta var. picta Carl B. Wolf 1937-5-18 Yuba 2 mi s Marysville; Sacramento Valley 18 Comment
  JEPS5031  Downingia montana Lincoln Constance 1951-5-20 Yuba just s Brownsville 670 Comment
  POM161767  Draperia systyla R. C. Bacigalupi 1927-7-2 1589 Yuba Highway to Downieville about 8 mi NE of Camptonville. Comment
  SJSU10221  Draperia systyla C. W. Sharsmith 1983-6-8 8802 Yuba Slate Cr at bridge-crossing of Scales & Quincy-La Porte Rds 1066 Comment
  CAS-BOT-BC515973  Draperia systyla Gordon H. True 1968-5-6 4227 Yuba Sierra Nevada: Near Gales Orchard, ca. 6 mi E of Camptonville 1249 Comment
  JEPS104416  Draperia systyla Lowell Ahart 2003-10-11 10625 Yuba On the east margins of a gravel road to the Rose Ranch, ca 100 yd west of the paved road to Scales, ca 1/2 mi south of the Rose Ranch, ca 5 miles (air) northeast of Strawberry Valley, ca 7 mi (air) southwest of La Porte. 1219 Comment
  CAS-BOT-BC535050  Drymocallis glandulosa var. reflexa Peter H. Raven 1975-6-10 1496 Yuba Challange Experimental Forest, along La Porte Road near Challange 762 Comment
  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
  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
  CHSC83043  Dysphania pumilio Lowell Ahart 2002-10-9 9954 Yuba Area east of a spring, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CHSC96872  Echinochloa colona Lowell Ahart 2007-6-30 14233 Yuba Near a new ditch, near and east of a new road pad, about 350 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113486  Echinochloa colona Lowell Ahart 2007-6-30 14233 Yuba Near a new ditch, near and east of a new road pad, about 350 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS113716  Echinochloa colona Lowell Ahart 2007-6-30 14230 Yuba Sides of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  RSA726848  Echinochloa colona L. Ahart 2007-6-30 14230 Yuba About 13 miles (air) northeast of Marysville. 30 Comment
  UCD60822  Echinochloa crus-galli Beecher Crampton 1963-9-9 6878 Yuba 2.5 miles n.n.w. Smartsville, 5 miles east Brown's Valley. U.C. Sierra Foothill Field Station. Comment
  UCD60830  Echinochloa crus-galli Beecher Crampton 1963-9-9 6879 Yuba 2.5 miles n.n.w. Smartsville, 5 miles east Brown's Valley. U.C. Sierra Foothill Field Sta. Comment
  UCR201770  Echinochloa crus-galli George K. Helmkamp, E. A. Helmkamp 2008-10-6 14208 Yuba Sacramento Valley, Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst 20 Comment
  CAS-BOT-BC197247  Echinochloa muricata Lowell Ahart 1977-9-25 s.n. Yuba 2 mi. NE of Marysville 35 Comment
  CDA19024  Eichhornia crassipes unknown 2000-11-14 PDR 116726 Yuba Widespread in 3 acres on East Park, Marysville. Comment
  JEPS124313  Elatine Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20648 Yuba Below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  UCR169022  Eleocharis David Charlton 2005-5-16 8018 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  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
  CHSC116029  Eleocharis atropurpurea Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20647 Yuba North of the spillway area, at the west side and near top of Lake Francis Dam, below the high water line of Lake Francis, about 1-1/2 miles south of Dobbins. 512 Comment
  JEPS98364  Eleocharis bella Lowell Ahart 2000-6-23 8507 A Yuba 3 mi NE of Strawberry Valley (on a dirt road,100 yds E of the meadow along La Porte Road,100 yds N of Scales Road) 1219 Comment
  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
  JEPS104249  Eleocharis bolanderi Lowell Ahart 2003-7-6 10362 Yuba In meadow, e of the power line, ca 60 yd nw of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  JEPS95538  Eleocharis bolanderi Lowell Ahart 1994-6-27 7375 Yuba 4 mi NE of Strawberry Valley (center of Schwartz Meadow, E side of La Porte Road) 1219 Comment
  JEPS98365  Eleocharis bolanderi Lowell Ahart 2000-6-23 8505 Yuba 3 mi NE of Strawberry Valley (bog in small meadow, 80 yds E of the meadow along La Porte Road,100 yds N of Scales Road) 1219 Comment
  CHSC83029  Eleocharis engelmannii Lowell Ahart 2002-10-9 9950 Yuba Area south of a spring, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS103479  Eleocharis engelmannii Lowell Ahart 2002-10-9 9950 Yuba Area S of a spring, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS113715  Eleocharis macrostachya Lowell Ahart 2007-6-30 14235 Yuba West side of a new ditch, near and west of a new road pad, about 350 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS98299  Eleocharis macrostachya Lowell Ahart 2000-7-13 8579 Yuba In a small meadow, on the south side of Ridge Road, about 1/4 mile west of Our House, about 2 miles (air) east of Celestial Valley, about 2 1/2 miles (air) southeast of Camptonville. 975 Comment
  CAS-BOT-BC113035  Eleocharis macrostachya W. V. Middlekauff 1954-9-11 s.n. Yuba 3 miles NW of Rio Oso Post Office. Comment
  UCD33112  Eleocharis montevidensis Beecher Crampton 1966-6-14 7757 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 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
  JEPS103518  Eleocharis obtusa Lowell Ahart 2002-10-9 9973 Yuba Along Lost Creek, below the high water line of Sly Creek Reservoir, ca 50 yards SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS124259  Eleocharis obtusa Lowell Ahart 2015-11-19 20689 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CHSC78299  Eleocharis pachycarpa Lowell Ahart 2000-6-19 8490 Yuba Along a south branch of Dry Creek, on the south side of Marysville Road, about 1/4 mile west of the intersection of Marysville Road and Frenchtown Road, west of Oregon House, about 2 miles east of Collins Lake. 457 Comment
  CHSC83068  Eleocharis pachycarpa Lowell Ahart 2002-10-9 9949 Yuba Area south of a spring, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS98437  Eleocharis pachycarpa Lowell Ahart 2000-5-25 8400 Yuba 6 air mi S of Smartville (sides of a deep wash, a N branch of Dry Creek, 2 mi N of intersection of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  JEPS98594  Eleocharis pachycarpa Lowell Ahart 2000-6-19 8490 Yuba Along a S branch of Dry Creek, on the S side of Marysville Road, ca 1/4 mile W of the intersection of Marysville Road and Frenchtown Road, W of Oregon House, ca 2 miles E of Collins Lake. 457 Comment
  SD131013  Eleocharis pachycarpa Gordon H. True, John Thomas Howell 1970-5-29 5422 Yuba Artificial lake ca. 1 mile northwest of Spenceville (site) on Cox Creek. In wet soul and shallow water at edge of lake. 152 Comment
  SEINET13710869  Eleocharis pachycarpa Lowell William Ahart, Lowell William Ahart 2000-1 8490 Yuba 2 Mi. E of Collins Lake (T17N, R6E, sec 3, NE 1/4) 1500 Ft. 457 Comment
  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
  CHSC78301  Eleocharis quinqueflora Lowell Ahart 2000-6-19 8493 Yuba Wet 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
  CHSC78304  Eleocharis quinqueflora Lowell Ahart 2000-6-23 8506 A Yuba In a small meadow, about 100 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  CHSC78313  Eleocharis quinqueflora Lowell Ahart 2000-7-13 8578 Yuba In a small meadowl, on the south side of Ridge Road, about 1/4 mile west of Our House, about 2 miles (air) east of Celestial Valley, about 2 1/2 miles (air) southeast of Camptonville. 975 Comment
  JEPS98361  Eleocharis quinqueflora Lowell Ahart 2000-6-23 8506 A Yuba 3 mi NE of Strawberry Valley (small meadow,100 yds E of the meadow along La Porte Road,100 yds N of Scales Road) 1219 Comment
  JEPS98723  Eleocharis quinqueflora Lowell Ahart 2000-6-23 8506 Yuba Bog in a small meadow, about 80 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  JEPS98296  Eleocharis quinqueflora Lowell Ahart 2000-7-13 8578 Yuba small meadow on S side of Ridge Road, 1/4 mi W of Our House, 2 air mi E of Celestial Valley, 2 1/2 air mi SE of Camptonville 975 Comment
  RSA716309  Eleocharis quinqueflora L. Ahart 2000-6-19 8493 Yuba About 100 yards north of New York Flat Road, about 1.25 miles (air) northeast of Brownsville, about 2.25 miles (air) west of Challenge 732 Comment
  RSA716568  Eleocharis quinqueflora L. Ahart 2000-6-23 8506 Yuba About 80 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley 1220 Comment
  SEINET7587004 Image available Eleocharis quinqueflora Lowell Ahart 2000-6-19 8493 Yuba About 100 yards north of New York Flat Road, about 1 1/4 miles (air) northeast of Brownsville, about 2 1/4 miles (air) west of Challenge. 732 Comment
  CAS-BOT-BC451544  Elodea canadensis Lowell Ahart 1977-9-25 s.n. Yuba 2 mi. NE of Marysville. On the Sam Shintaffer Farm. 35 Comment
  POM319561  Elymus Patricia Wilder 1971-6-23 5198 Yuba About two miles southeast of Forbestown on Challenge Cut-off Road; West slope of the Sierra Nevada Mt. Range 762 Comment
  UCR169018  Elymus caput-medusae David Charlton 2005-5-16 8014 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  CAS-BOT-BC227154  Elymus elymoides Lowell Ahart 1979-6-25 s.n. Yuba 2 mi e of Challenge 700 Comment
  UCD147098  Elymus elymoides var. elymoides Chuck Hughes 2013-5-16 382 Yuba Near margin of Camp Far West Reservoir. 95 Comment
  UCD61799  Elymus glaucus Beecher Crampton 1971-6-18 8733 Yuba Sierra Foothill Range Field Station. Ca. 6 miles E of Browns Valley. Comment
  UCD61859  Elymus glaucus Beecher Crampton 1965-6-17 7375 Yuba Ca. 3/4 mile north of Stanfield Hill, Willow Glen Creek. 396 Comment
  UCD62317  Elymus glaucus Beecher Crampton 1957-6-5 4139 Yuba 1 mile east of Stanfield Hill. Comment
  UCD148347  Elymus glaucus G. Douglas Barbe; J. T. Howell, T. C. Fuller 1981-6-22 3038 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  CHSC108216  Elymus glaucus subsp. glaucus Lowell Ahart 2011-6-7 17423 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCD62472  Elymus multisetus Beecher Crampton 1957-6-5 4136 Yuba 7.5 miles northeast of Brown's Valley town. Comment
  UCD62507  Elymus multisetus Beecher Crampton 1957-6-5 4135 Yuba 7.5 miles northeast of town of Brown's Valley. Comment
  CHSC44533  Elymus stebbinsii subsp. septentrionalis Lowell Ahart 1979-6-25 1946 Yuba North of the dirt road, about 2 miles east of Challenge. 640 Comment
  CHSC84144  Elymus stebbinsii subsp. septentrionalis Lowell Ahart 2003-7-2 10341 Yuba About 200 yards south of the 4-H Camp, on the west side of Oregon Hill Road, about 1/2 mile north of Marysville Road, about 2 miles (air) northeast of Dobbins. 815 Comment
  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
  CHSC83036  Epilobium brachycarpum Lowell Ahart 2002-10-9 9956 Yuba Along a small stream, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS43833  Epilobium brachycarpum L. S. Smith 1927-4-18 2017 Yuba Comptonville and w Tahoe (along road) 609 Comment
  JEPS94446  Epilobium brachycarpum Lowell Ahart 1997-8-30 7876 Yuba about 3 air mi e of Challenge (on w side of the dirt road, in clear cut, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  UCD105307  Epilobium brachycarpum G. K. Helmkamp; E. A. Helmkamp 2006-10-10 11529 Yuba Northern Sierra Nevada Mountains Foothills. Along Hwy CA-49 just N of the Nevada County line at the Middle Yuba River bridge. 451 Comment
  UCR189621  Epilobium brachycarpum George K. Helmkamp, E. A. Helmkamp 2007-8-29 12843 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 1.2 miles southwest of Camptonville 701 Comment
  CHSC96939  Epilobium campestre Lowell Ahart 2007-6-30 14226 Yuba Bottom of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  JEPS113717  Epilobium campestre Lowell Ahart 2007-6-30 14226 Yuba Bottom of a small wash, about 250 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 29 Comment
  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
  CHSC97135  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2007-6-30 14236 Yuba Near and west of new road pad, about 350 yards west of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113484  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2007-6-30 14236 A Yuba West side of a new ditch, near and west of a new road pad, about 350 yards west of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS38236  Epilobium densiflorum W. L. Jepson 1934-7-29 16764 Yuba Smartsville Comment
  UCD106520  Epilobium minutum Barbara Yungert 1975-4-28 69 Yuba Sierra Foothill Field Station. 100 meters E of central picnic area, 60 meters from Yuba River, H 8-11 project area. 152 Comment
  CAS-BOT-BC171857  Epilobium septentrionale Dan Campbell 1976-9-3 s.n. Yuba Just southwest of Camptonville 762 Comment
  CAS-BOT-BC165951  Epilobium torreyi Lowell Ahart 2007-5-12 13800 Yuba About 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC97675  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
  SEINET7072984 Image available Epilobium torreyi A. G. Vestal 1963-5-29 s.n. Yuba About 0.4 mile west of Erle Road on Hammonton-Smartville Road. UTM Zone 10, 638165mE, 4337165mN. Coordinate datum: NAD27). Comment
  CAS-BOT-BC57147  Equisetum hyemale subsp. affine Lowell Ahart 1977-4-17 s.n. Yuba About 3 miles south of Challenge 700 Comment
  HSC868  Equisetum hyemale subsp. affine T. F. Newman 1964-4-15 6440 Yuba Feather River near Marysville 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
  CHSC69462  Eragrostis mexicana subsp. virescens Lowell Ahart 1997-8-13 7866 Yuba On th south side of Scott Forbes Road, 1/4 mile east of the intersection of Scott Forbes Road and Peoria Road, just east of Gray Drive, about 2 1/4 miles (air) east of Browns Valley. 91 Comment
  JEPS94974  Eragrostis mexicana subsp. virescens Lowell Ahart 1997-8-13 7866 Yuba about 2 1/4 air mi e of Browns Valley (on s side of Scott Forbes Road, 1/4 mi e of intersection of Scott Forbes Road and Peoria Road, just e of Gray Drive); s side of Scott Forbes Road 91 Comment
  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
  JEPS94364  Eragrostis pectinacea var. pectinacea Lowell Ahart 1997-8-13 7867 Yuba about 2 1/4 air mi e of Browns Valley (on s side of Scott Forbes Road, 1/4 mi e of intersection of Scott Forbes Road and Peoria Road, just e of Gray Drive); Scott Forbes Road 91 Comment
  JEPS113512  Eremocarpus setiger Lowell Ahart 2007-5-12 13790 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CAS-BOT-BC131511  Ericameria arborescens Carl B. Wolf; E. R. Johnson 1934-10-4 6153 Yuba Texas Hill, about 2 miles from Dobbins 457 Comment
  CAS-BOT-BC131512  Ericameria arborescens Carl B. Wolf; E. R. Johnson 1934-10-4 6153 Yuba Texas Hill, about 2 miles from Dobbins 457 Comment
  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
  CHSC45000  Erigeron canadensis Lowell Ahart 1977-11-13 1607 Yuba Near the edge of the dirt road, near the bridge across Slate Creek, about 5 air miles east of Strawberry Valley. 914 Comment
  UCD131914  Erigeron foliosus Barbara Yungert 1974-5-23 173 Yuba along road near powerhouse, below Englebright Dam, Sierra Foothill Field Station. 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
  CAS-BOT-BC295784  Erigeron petrophilus var. sierrensis Lowell Ahart 1980-8-12 2528 Yuba About 2 miles south-east of Woodleaf 800 Comment
  JEPS95030  Erigeron petrophilus var. sierrensis Lowell Ahart 1997-8-7 7809 Yuba about 3 air mi se of Challenge (on n side of the dirt road, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  CAS-BOT-BC214557  Erigeron philadelphicus Alice Eastwood 1921-5-22 10573 Yuba Los Vergils Comment
  RSA21288  Erigeron philadelphicus C. B. Wolf 1937-5-13 8633 Yuba Sierra Nevada Foothills, 2 miles above Browns Valley on road to Stanfield Hill. 122 Comment
  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
  CHSC76269  Erigeron sumatrensis Lowell Ahart 1999-9-17 8254 Yuba Sam Shintaffer Farm, on the west side of Kimball Lane, near the intersection of Kimball Lane and Hallwood Blvd., about 3/4 mile south of San Shintaffer's rice dryer, about 4 1/4 miles (air) northeast of Marysville. 22 Comment
  CAS-BOT-BC216038  Eriodictyon californicum Alice Eastwood 1930-4-12 s.n. Yuba Marysville Flower Show Comment
  CHSC43348  Eriodictyon californicum Lowell Ahart 1976-5-6 1092 Yuba Near the Brownsville dump, along Ponderosa Way. 487 Comment
  JEPS113102  Eriodictyon californicum Lowell Ahart 2007-4-17 13688 Yuba On the north side of the poor dirt fireguard, about 50 yards northwest of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  RSA726489  Eriodictyon californicum L. Ahart 2007-4-17 13688 Yuba Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5.5 miles (air) northeast of Loma Rica. 293 Comment
  UC410442  Eriodictyon californicum Alice Eastwood 1930-4-12 Yuba Comment
  UCD119302  Eriodictyon californicum Barbara Yungert 1974-4-22 78 Yuba Along four wheel drive jeep road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  SEINET12335243  Eriodictyon californicum F. H. Utech 1990-1 90 -859 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  UCD168071  Eriogonum nudum var. nudum James Neilson 1961-10-16 464 Yuba 1/2 mile west of Brown's Valley Rd. (Exact location unknown. Coordinates estimated by label maker.) Comment
  JEPS94519  Eriogonum nudum var. oblongifolium Lowell Ahart 1997-8-7 7834 Yuba about 3 air mi e of Challenge (on n side of the dirt road, nw of the bridge across Indian Creek) 762 Comment
  CAS-BOT-BC261708  Eriogonum nudum var. oblongifolium Lowell Ahart 1980-8-12 2525 Yuba Ca. 2 miles south-east of Woodleaf 800 Comment
  CHSC69147  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-8-9 7838 Yuba On the west side of the dirt road, about one mile (air) south of Woodleaf. 944 Comment
  CHSC69429  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-8-30 7875 Yuba In the gutter on the north side of Forbestown Road, just west of Costa Creek, about 2 1/2 miles (air) southeast of Forbestown. 853 Comment
  CHSC95067  Eriogonum umbellatum var. ahartii L. P. Janeway; David Toren, Dan Lubin, Erin Brandy 2006-7-17 8814 Yuba Northern High Sierra Nevada. Slope on east side above Indian Creek; 3.0 km south of Woodleaf and 2.8 km east of Challenge. Southwest-facing slope of rocky weathered serpentine. 815 Comment
  HSC96690  Eriogonum umbellatum var. ahartii L. P. Janeway, David Toren, Dan Lubin, Erin Brandy 2006-7-17 8814 Yuba N High Sierra Nevada, slope on E side above Indian Creek, 3 km. S of Woodleaf, 2.8 km. E of Challenge 815 Comment
  JEPS113303  Eriogonum umbellatum var. ahartii L. P. Janeway, David Toren 2006-7-18 8815 Yuba Northern High Sierra Nevada. Along the 107 road, overlooking Golden Gate Ravine from the south; 2.4 km north-northeast of Challenge & 2.4 km southwest of Woodleaf. Comment
  JEPS94926  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-8-30 7875 Yuba about 2 1/2 air mi se of Forbestown (on n side of Forbestown Road, just w of Costa Creek); n side of Forbestown Road 853 Comment
  JEPS95143  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-8-7 7835 Yuba about 3 air mi e of Challenge (on n side of dirt road, nw of the bridge across Indian Creek) 762 Comment
  CAS-BOT-BC265202  Eriogonum umbellatum var. speciosum Lowell Ahart 1980-8-12 2526 Yuba Ca. 2 mile south-east of Woodleaf, Sierra Nevada 800 Comment
  UCR196979  Eriophyllum lanatum var. achilleoides George K. Helmkamp, E. A. Helmkamp 2008-5-20 13464 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek 466 Comment
  CAS-BOT-BC301317  Eriophyllum lanatum var. croceum Lewis S. Rose 1939-6-6 39225 Yuba Brownsville 685 Comment
  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-BC308244  Eriophyllum lanatum var. grandiflorum Lowell Ahart 1979-6-25 s.n. Yuba 2 miles east of Challenge Comment
  CHSC112961  Eriophyllum lanatum var. grandiflorum L. P. Janeway 2014-7-2 11433 Yuba Northern High Sierra Nevada. Plumas National Forest; Peterson Ridge Road rounding the southeast-trending ridge between Indian Creek and the un-named creek south of that; 2.4 air-km east of Pike County Peak. 820 Comment
  CHSC45002  Eriophyllum lanatum var. grandiflorum Lowell Ahart 1979-6-25 1945 Yuba North of the dirt road, about 2 air miles east of Challenge. 640 Comment
  CHSC69134  Eriophyllum lanatum var. grandiflorum Lowell Ahart 1997-8-7 7825 Yuba On the east side of the dirt road, near a unnamed stream, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  UCD132217  Eriophyllum lanatum var. grandiflorum W. R. Powell 1968-5-15 1493 a Yuba on Fountain House Road, 2 miles northeast of Dobbins. 792 Comment
  SEINET8526857  Erodium botrys R. T. Short 1961-4-11 s.n. Yuba 5 miles west of Smartville on Calif. 20 366 Comment
  CHSC97676  Erodium brachycarpum Lowell Ahart 2007-5-12 13796 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113702  Erodium brachycarpum Lowell Ahart 2007-5-12 13796 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  RSA726411  Erodium brachycarpum L. Ahart 2007-5-12 13796 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  CHSC97453  Erodium cicutarium Lowell Ahart 2007-5-14 13877 Yuba On dry bare disturbed dark soil, about 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113620  Erodium cicutarium Lowell Ahart 2007-5-14 13877 Yuba On dry bare disturbed dark soil, about 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  RSA590206  Erodium cicutarium Michael A. Vincent, Robert M. Rhode 1996-3-29 7248 Yuba Along Ramirez Rd. at RR track and drainage ditch, 3 mi. E of jct. with St. Hwy. 70, ca. 6 mi N of Marysville. Comment
  UC1122964  Eryngium castrense M. A. Elvin 1933-6-7 23 Yuba 3 mi. s.e. of O'Brien's Ranch Smartsville Quad. Comment
  CDA18858  Eryngium castrense J. Horenstein 1999-6-9 s.n. Yuba NE of Cock's Creek, Spenceville Wildlife Area. 0 Comment
  SEINET7042624  Eryngium vaseyi A. G. Vestal 1963-5-7 s.n. Yuba Ca. 3.5 miles north of Wheatland. Camp Far West quadrangle UTM Zone 10, 640908mE, 4323324mN. Comment
  CAS-BOT-BC54682  Erysimum capitatum Mrs. Martin Goerges 1953-6-24 s.n. Yuba Lake Vera, North Fork, Yuba River. Comment
  CHSC118502  Erythranthe bicolor L. P. Janeway 2016-5-11 11958 Yuba Northern High Sierra Nevada. Plumas National Forest; near head of eastern tributary of Indian Creek; west side of Road 19N53 0.4 road-km south of Road 20N13. 920 Comment
  CHSC63275  Erythranthe bicolor Lowell Ahart 1994-6-5 7293 Yuba On the north side of Costa Creek, on the north side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  CHSC47495  Erythranthe breweri Lowell Ahart 1980-8-12 2562 Yuba Across Slate Creek, west of where Gold Run Creek flows into Slate Creek, east of Onion Creek, about 7 air miles south of La Porte. 1158 Comment
  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
  CHSC23421  Erythronium multiscapideum D. Huffmaster 1974-4-14 Yuba Collected ca. 32 mi ne of Marysville on Indiana Ranch Road, ca. 0.2 mi n of Dobbins Road. 457 Comment
  CHSC87346  Erythronium multiscapideum Lowell Ahart 2004-4-27 10769 Yuba About 20 yards north of a drainage, about 50 yards east of the road, about 1/2 mile (air) southeast of Woodleaf. 931 Comment
  SBBG988  Erythronium multiscapideum H. and M. Dearing 1939-5-8 3295 Yuba New York Crk Comment
  CAS-BOT-BC502831  Erythronium multiscapideum Lowell Ahart 1982-5-8 3424 Yuba 4 miles east of Forbestown 825 Comment
  CAS-BOT-BC502832  Erythronium multiscapideum Volney Rattan 1880-1-1 s.n. Yuba Brownsville Comment
  UCD139644  Erythronium multiscapideum Kathleen Keliher 1975-4-12 59 Yuba near boat launch, Englebright Reservoir, C 1-11 project area, Sierra Foothill Field Station. 152 Comment
  CHSC90463  Eschscholzia caespitosa Lowell Ahart 2005-3-11 11615 Yuba Large rock outcrop, south slope, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 395 Comment
  JEPS107321  Eschscholzia caespitosa Lowell Ahart 2005-3-11 11615 Yuba Large rock outcrop, south slope, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica 395 Comment
  SEINET7075553  Eschscholzia californica A. G. Vestal 1955-4-4 s.n. Yuba About 9 miles northeast of Marysville on Route 20. 39? deg. 13' 38" North Latitude, -121? deg. 24' 51" West Longitude. UTM Zone 10, 636890mE, 4342994mN. (NAD 27)]. [Coordinate Datum: WGS84/NAD83]. Comment
  CAS-BOT-BC419485  Eschscholzia lobbii Gordon H. True 1963-4-17 1181 Yuba About 10 miles east of Marysville on Marysville-Grass Valley Hwy. 30 Comment
  CAS-BOT-BC419486  Eschscholzia lobbii Helen McGovern 1928-3-23 s.n. Yuba Smartville Comment
  UCD95384  Eschscholzia lobbii Barbara Yungert 1974-4-14 36 Yuba K 1-11 project area, Sierra Foothill Station. Comment
  CHSC63247  Euphorbia crenulata Lowell Ahart 1994-6-5 7296 Yuba On the north side of Costa Creek, on the south side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  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
  JEPS95139  Euphorbia spathulata Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7719 Yuba about 17 mi ne of Marysville (on s side of a poor dirt road, about 1/2 mi e of Scott Forbes Road (Long Bar Road) s of Dry Creek) 137 Comment
  UCD142494  Euphorbia spathulata Barbara Yungert 1974-4-19 67 Yuba Sierra Foothill Field Station. SC-14 project area. Comment
  JEPS95033  Eurybia radulina Lowell Ahart 1997-8-7 7829 Yuba about 3 air mi e of Challenge (on n side of the dirt road, in a clear cut, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  CAS-BOT-BC312190  Eurybia radulina L. P. Janeway 1993-9-7 4590 Yuba About 3 mi. east of Woodleaf ca 3 mi. southwest of Clipper Mills, La Porte Ranger District, Woodleaf Compartment, Plumas National Forest 1043 Comment
  CAS-BOT-BC312191  Eurybia radulina Lowell Ahart 1983-8-10 4276 Yuba About 2 miles east of Clipper Mills 1000 Comment
  CHSC44867  Euthamia occidentalis Lowell Ahart 1978-9-24 1807 Yuba Along a drain ditch, on Shintaffer Farms, about 2 air miles north-east of Marysville. 30 Comment
  CAS-BOT-BC459238  Euthamia occidentalis Lowell Ahart 1978-9-24 s.n. Yuba 2 miles NE of Marysville on Sam Shintaffer Farm 35 Comment
  CHSC107155  Festuca myuros L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10371 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Plants common throughout the meadow. 750 Comment
  JEPS100268  Festuca subulata Dean W. Taylor 2001-5-9 17641 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  UC2046361  Ficus carica Barbara Ertter with Steve Matson 1996-10-19 15349 Yuba Waldo Road Bridge across Dry Creek, ca 15 airmi E of Marysville. Comment
  SEINET7042641  Filago gallica A. G. Vestal 1963-5-7 s.n. Yuba 5.2 miles southwest of Bangor. Loma Rica quadrangle UTM Zone 10, 632125mE, 4355120mN. Comment
  CHSC10692  Fragaria vesca Lowell Ahart 1970-4-5 Yuba Near Challenge. 914 Comment
  CHSC112857  Fragaria vesca L. P. Janeway 2014-4-15 11229 Yuba Northern High Sierra Nevada. Plumas National Forest; east edge of Milk Ranch Meadow; on a low gap between an unnamed tributary of Little Oregon Creek to the west and an unnamed tributary of New Bullards Bar Reservoir (North Yuba River) to the east; along an eastern extension of Fountain House Road. 739 Comment
  SBBG2920  Fragaria vesca H. and M. Dearing 1939-5-6 3288 Yuba near Brownsville Comment
  CAS-BOT-BC454547  Fragaria vesca subsp. californica Lowell Ahart 1968-4-20 s.n. Yuba Five miles southeast of Challenge 457 Comment
  CHSC113644  Frangula californica L. P. Janeway 2014-5-12 11251 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  CAS-BOT-BC53662  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  CAS-BOT-BC53665  Frangula californica subsp. tomentella Carl B. Wolf 1930-10-12 1738 Yuba Sierra Nevada Foothills, along Yuba River, near bridge on the Brown's Valley - Smartsville Road 152 Comment
  CAS-BOT-BC53671  Frangula californica subsp. tomentella Alice Eastwood 1921-5-22 10530 Yuba Los Vergeles Comment
  OBI5863  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1447 Yuba Browns Valley to Smartsville rd, along left bank of Yuba river, near bridge 152 Comment
  SBBG27475  Frangula californica subsp. tomentella C. B. Wolf, E. R. Johnson 1934-10-4 6155 Yuba Texas Hill, 2 mi W of Dobbins 457 Comment
  SD22794  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-5 1444 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  SD22796  Frangula californica subsp. tomentella Carl B. Wolf 1927-11-6 1447 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  UCD112769  Frangula californica subsp. tomentella D. H. Hartmann 1941-10-11 s.n. Yuba 2 miles west of Smartsville. 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
  CHSC117655  Frangula purshiana subsp. purshiana Lowell Ahart 2016-9-9 21346 Yuba On the west side of road, after crossing Slate Creek on Old County Road to Scales, take first road to the right and go about 1/2 mile, near Stowman Ravine, about 3 miles (air) southwest of Poverty Hill Mine, about 8 miles (air) southwest of La Porte. 1214 Comment
  JEPS127130  Frangula purshiana subsp. purshiana Lowell Ahart 2016-9-9 21346 Yuba After crossing Slate Creek on Old County Road to Scales, take first road to the right and go about 1/2 mile near Stowman Ravine, about 3 miles (air) southwest of Poverty Hill mine, about 8 miles (air) southwest of La Porte. Comment
  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
  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
  HSC100760  Frangula rubra subsp. rubra L. P. Janeway 2011-8-10 10639 Yuba Plumas National Forest, SE side of Rd. 19N04, 1.3 km N of Challenge-La Porte Rd.; 2.2 air km NE of Challenge. 312 Comment
  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
  CHSC43325  Fremontodendron californicum Lowell Ahart 1976-5-6 1093 Yuba Near the Brownsville Dump, along Ponderosa Way, south-west of Brownsville. 457 Comment
  CHSC47512  Fremontodendron californicum Lowell Ahart 1975-6-25 810 Yuba East of Ponderosa Way, near the Brownsville dump, about 2 miles south-west of Brownsville. 518 Comment
  CAS-BOT-BC205978  Fremontodendron decumbens G. L. Stebbins 1966-5-22 6417 Yuba Near Dobbins, beside city dump 524 Comment
  HSC86889  Fremontodendron decumbens J. D. Jokerst, L. Ahart 1984-3-20 1945 Yuba S of Brownsville dump, E of Ponderosa Way 100 meters, 0.65 mi. N of junction with La Porte Rd. Comment
  CAS-BOT-BC136095  Fritillaria affinis Volney Rattan 1880-1-1 s.n. Yuba Brownsville Comment
  CHSC112261  Fritillaria eastwoodiae Lowell Ahart 2013-4-23 18566 Yuba Mined area along Costa Creek, about 100 yards east of where the paved road crosses Costa Creek, about 2 1/2 miles (air) southeast of the Forbestown store. 851 Comment
  CHSC63299  Fritillaria eastwoodiae Lowell Ahart 1994-4-22 7289 Yuba On the north side of Costa Creek, on the north side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  CHSC47588  Fritillaria micrantha Lowell Ahart 1976-4-15 1074 Yuba On the east side of Ponderosa Way, at the Brownsville Dump, about 2 miles south-west of Brownsville. 457 Comment
  CDA39333  Fritillaria micrantha Yuba County School Children 1930-4-12 s.n. Yuba [No further data.] 0 Comment
  SEINET10469564  Fritillaria micrantha Mary Susan Taylor, L. Hanson 1981-4-15 Taylor 3537 Yuba T19N R7E se sec 7, Clipper Mills quad. N side of Forbestown-Woodleaf Rd, ca. 3/4 mi E of its jct with Forbestown Rd, ca. 2 mi W of Woodleaf. 2800 ft. 853 Comment
  SEINET10469565  Fritillaria micrantha Mary Susan Taylor, L. Hanson 1981-4-15 Taylor 3539 Yuba T19N R6E center sec 34, Rackerby quad. In Brownsville along LaPorte-Quincy Rd (Marysville-LaPorte Rd), near its jct with Rackerby Rd about a block. Yellow Pine Forest; 2300 ft. 701 Comment
  SJSU8741  Fritillaria micrantha N. A. Hopkins 1980-4-13 968 Yuba 40' above McCabe Cr c. 3 airline miles W of Forbestown 548 Comment
  SJSU8742  Fritillaria micrantha N. A. Hopkins 1980-4-12 967 Yuba Abernathy (Abranathy) Rd 100 yds from its intersection with Forbestown-Woodleaf Rd c. 2-3 mi E of Forbestown 838 Comment
  CHSC100725  Fritillaria recurva L. P. Janeway 2008-5-11 9361 Yuba Northern High Sierra Nevada. In the northwestern head of Slapjack Creek; along Road 19N34, 1.3 road km southeast of Challenge-La Porte Road; about 1.2 km south-southeast of Woodleaf. 940 Comment
  JEPS18153  Fritillaria recurva Rimo Bacigalupi with G. T. Robbins and F. Chisaki 1956-4-19 5623 Yuba 5.5 mi sw of Bullard Bar Dam (3.1 mi e of Dobbins, watershed of North Fork of Yuba River, between Dobbins and Bullard Bar Dam) 838 Comment
  SBBG1013  Fritillaria recurva H. and M. Dearing 1939-5-6 3290 Yuba near Brownsville 609 Comment
  UCR194905  Galium bolanderi George K. Helmkamp, E. A. Helmkamp 2007-5-26 12140 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
  CHSC78164  Galium divaricatum Lowell Ahart 2000-6-11 8468 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
  CDA6672  Galium divaricatum J. T. Howell, G. H. True 1967-6-13 3572 Yuba Camp Far West Reservoir, on Bear River east of Wheatland. Comment
  JEPS113578  Galium mollugo Lowell Ahart 2007-8-7 14426 Yuba Small open flat, about 200 yards south of Hampshire Creek Meadow, about 30 yards est of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  CHSC78165  Galium murale Lowell Ahart 2000-5-25 8395 Yuba Bank of a large wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  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
  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
  CHSC107311  Gastridium phleoides L. P. Janeway; Melanie Williams, Tim Hanson 2011-6-9 10380 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. Small grassy meadow. Along an old roadbed re-opened in fire-fighting several years ago but not driveable. 750 Comment
  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
  RSA697054  Gastridium phleoides L. Ahart 2003-6-29 10319 Yuba On the east side of Ponderosa Way, about 1 1/2 miles north of La Porte Road, about 1 mile (air) west of Brownsville. 702 Comment
  RSA726414  Gastridium phleoides L. Ahart 2007-5-12 13827 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  CDA8341  Gastridium phleoides D. Wilson 2008-6-3 PDR# 147086 Yuba Oregon House, 9448 Rice s Texas Hill Rd. near Tehama Way. 0 Comment
  CAS-BOT-BC278716  Gastridium ventricosum Lowell Ahart 1980-6-19 2396 Yuba 3 miles south-east of Challenge 800 Comment
  JEPS113755  Gastridium ventricosum Lowell Ahart 2007-5-12 13827 Yuba Dry bare red soil, about 30 feet south of a culvert, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  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
  CHSC97119  Gaultheria ovatifolia Lowell Ahart 2007-8-7 14425 Yuba South of Hampshire Creek Meadow, graded edges of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS113574  Gaultheria ovatifolia Lowell Ahart 2007-8-7 14425 Yuba South of Hampshire Creek Meadow, graded edges of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  SJSU10225  Gaultheria ovatifolia C. W. Sharsmith 1983-6-8 8806 Yuba near Slate Cr bridge crossing of Scales & Quincy-La Porte Rds 1066 Comment
  UCD105750  Genista monspessulana Barbara Yungert 1974-6-5 193 Yuba Picnic area, north of Yuba River, Sierra National Foothill Field Station. Comment
  CHSC108310  Geranium dissectum Lowell Ahart 2011-6-7 17403 Yuba West of a willow shurb, just south of the huge gravel bar, along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC97476  Geranium dissectum Lowell Ahart 2007-5-14 13887 Yuba 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS118297  Geranium dissectum Lowell Ahart 2011-6-7 17403 Yuba West of a willow shurb, just south of the huge gravel bar, along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  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
  SEINET12335244  Gilia capitata F. H. Utech 1990-1 90 -862 Yuba Tahoe National Forest, Oregon Creek area, on CA 49 near junction with Middle Fork of Yuba River 500 Comment
  UCR195173  Gilia capitata subsp. pedemontana George K. Helmkamp, E. A. Helmkamp 2007-5-26 12144 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, just north of the Nevada Co. line; beside Oregon Creek and Oregon Creek campground 430 Comment
  SEINET10464593  Githopsis specularioides Yungert 1974-5-3 YUNGERT 107 Yuba Near cattle guard and U.C. sign, west of station, Sierra Foothill Field Station Comment
  UCD72427  Githopsis specularioides Barbara Yungert 1974-5-3 107 Yuba Sierra Foothill Field Station, west of road, near Cattle guard and U.C. sign, west of station. Comment
  CHSC113177  Glinus lotoides Lowell Ahart 2013-11-30 19297 Yuba On the north side of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  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
  JEPS115014  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
  SBBG121295  Glinus lotoides L. Ahart 2007-11-8 14582 Yuba strand of Camp Far West Reservoir, ca. 0.5 mi S of Rock Crk, ca. 1/8 mi N of Bear River, ca. 6 mi (air) NE of Sheridan 73 Comment
  CHSC97481  Glyceria declinata Lowell Ahart 2007-5-12 13824 Yuba In the scraped swale, about 20 yards northwest of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS95807  Glyceria declinata Lowell Ahart 1999-9-17 8248 Yuba Sam Shintaffer Farm; south of Woodruff Lane; south of Mathews Road; 100 yards south of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  SJSU10211  Glyceria elata C. W. Sharsmith 1983-6-7 8792 Yuba meadow, Rose Ranch c. 4 mi NE of Strawberry Valley (Yuba Co) on La Porte-Quincy Road; Yuba & Sierra county boundary 1432 Comment
  CHSC44569  Glyceria occidentalis Lowell Ahart 1978-4-14 1640 Yuba Irrigation canal, west of Kimball Lane and on the property of Shintaffer Farms Inc. 30 Comment
  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
  UCR189429  Gnaphalium luteoalbum George K. Helmkamp, E. A. Helmkamp 2007-8-29 12833 Yuba Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville 817 Comment
  UCD135096  Gnaphalium luteoalbum Barbara Yungert 1974-5-9 145 Yuba south of road, SC-14 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC303348  Gnaphalium palustre Lowell Ahart 1980-8-12 2564 Yuba Along Slate Creek 1250 Comment
  CDA6022  Gnaphalium palustre L. Ahart 2002-10-9 9952 Yuba Wet area along Lost Creek, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. Comment
  CHSC113185  Gnaphalium palustre Lowell Ahart 2013-11-30 19316 Yuba On the southeast side of Dry Creek, about 30 yards southeast of Willow Glen Creek, below the high water line of Collins Lake, about 30 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  CHSC81758  Gnaphalium palustre Lowell Ahart 2001-11-2 9403 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  CHSC83035  Gnaphalium palustre Lowell Ahart 2002-10-9 9952 Yuba Along Lost Creek, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS103371  Gnaphalium palustre Lowell Ahart 2002-10-9 9952 Yuba Along Lost Creek, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  JEPS113625  Gnaphalium palustre Lowell Ahart 2007-5-12 13769 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  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
  CAS-BOT-BC303349  Gnaphalium palustre Rimo Bacigalupi 1927-7-2 1579 Yuba Road to Downieville 2 miles W of Camptonville Comment
  JEPS125850  Goodyera oblongifolia Dean W. Taylor 2001-7-31 17851 Yuba Rock Creek canyon on the Yuba County side, ca 2 air miles SW of Union Hill. Comment
  JEPS94516  Goodyera oblongifolia Lowell Ahart 1997-8-7 7831 Yuba About 3 air mi e of Challenge (on e side of the dirt road, on the e side of the bridge across Indian Creek); bridge across Indian Creek. 762 Comment
  UCD132545  Grindelia camporum Barbara Yungert 1974-5-31 190 Yuba along road, near fence between SC-2 and SC-5 project areas, Sierra Foothill Field Station. Comment
  CDA14557  Grindelia hirsutula var. davyi G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3033 Yuba 1.4 miles west of New Bullards Bar Dam, between Log Cabin and Camptonville. 609 Comment
  CHSC115895  Grindelia hirsutula var. davyi L. P. Janeway 2015-6-29 11787 Yuba Northern High Sierra Nevada. Plumas National Forest; Weiss Hill Meadow, a large meadow 600 air-km east-southeast of junction of Weiss Hill Road and Forbestown Road; at the head of a minor northwestern tributary to New York Creek. 853 Comment
  CDA31981  Hainardia cylindrica L. Ahart 2007-5-12 13825 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. Comment
  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
  JEPS113630  Hainardia cylindrica Lowell Ahart 2007-5-12 13825 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  RSA726545  Hainardia cylindrica L. Ahart 2007-5-12 13825 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  SEINET11836554  Haplopappus arborescens Unknown 1975-1 987 Yuba near Bullards Bar Dam 610 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
  CHSC115890  Hastingsia alba L. P. Janeway 2015-7-1 11792 Yuba Northern High Sierra Nevada. Plumas National Forest; Forbestown, 120 m southwest of Challenge Cut-Off Road and 0.6 km southeast of its junction with Forbestown Road.; springy area at headwaters of a northeastern tributary of New York Creek. 817 Comment
  CHSC108222  Hedypnois cretica Lowell Ahart 2011-6-7 17377 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCD38717  Hedypnois cretica Beecher Crampton 1957-6-5 4130 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  CAS-BOT-BC306335  Hedypnois cretica Gordon H. True 1963-4-17 1165 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Hwy. 30 Comment
  CAS-BOT-BC306336  Hedypnois cretica B. Crampton 1957-6-5 4130 Yuba 2.6 miles northeast of Brown's Valley Post Office Comment
  RSA21287  Hedypnois cretica C. B. Wolf 1937-5-13 8631 Yuba Sierra Nevada Foothills, 2 miles above Browns Valley on road to Stanfield Hill. 122 Comment
  UCD132675  Hedypnois cretica Barbara Yungert 1974-4-19 69 Yuba intersection of Loop and Road 4, K1-11 Project area, Sierra Foothill Field Station. Comment
  UCD132676  Hedypnois cretica Barbara Yungert 1974-5-8 132 Yuba along four wheel drive road, north side of Yuba River, Sierra Foothill Field Station. Comment
  CAS-BOT-BC314787  Helianthella californica var. nevadensis Lloyd W. Swift 1932-5-10 55 Yuba Near Dobbins, Mt. Misery, Plumas Forest 762 Comment
  JEPS34865  Helianthus bolanderi R. F. Hoover 1936-7-31 1589 Yuba Wheatland Comment
  CAS-BOT-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
  CDA7043  Hemizonia fitchii A. C. Browne 1951-5-15 Yuba Marysville. 0 Comment
  RSA7607  Hemizonia luzulifolia subsp. rudis C. B. Wolf, B. D. Stark 1933-09 5504 Yuba Marysville airport, 2 miles N of Marysville; Sacramento Valley. 15 Comment
  JEPS113480 Image available Hesperevax caulescens Lowell Ahart 2007-5-12 13775 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  LA6491  Hesperocyparis macnabiana Carl Epling; June 1938 sn Yuba near Brownsville Comment
  SD40674  Hesperocyparis macnabiana Carl B. Wolf, E. R. Johnson 1934-10-3 Yuba Sierra Nevada Foothills, Texas Hill, about 2 miles west of Dobbins 550 Comment
  JEPS95796  Heteranthera rotundifolia Lowell Ahart 1999-9-17 8241 Yuba about 5 miles (air) northeast of Marysville; ; south of Woodruff Lane; just east of Mathews Road; east of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  CDA2656  Heteranthera rotundifolia L. Ahart 1999-9-17 8241 Yuba South of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer s rice dryer, about 5 miles (air) northeast of Marysville. Comment
  CHSC73413  Heterocodon rariflorum B. Castro; L. Gehrung 1995-8-9 599 Yuba Fish Meadow. Ca 5 air mi NE of Strawberry Valley, and ca 1.5 mi E of Slate Creek. In meadow of unnamed stream flowing S into Canyon Ck, ca 500 ft W of USFS Rd 20N35 via unnamed dirt road. 1249 Comment
  CHSC97499  Heterocodon rariflorum Lowell Ahart 2007-5-14 13875 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC69150  Heteromeles arbutifolia Lowell Ahart 1997-8-7 7823 Yuba On the west side of the dirt road, near a unnamed stream, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  JEPS94515  Heteromeles arbutifolia Lowell Ahart 1997-8-7 7823 Yuba about 3 air mi se of Challenge (on w side of dirt road near an unnamed stream, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  UCD113337  Heteromeles arbutifolia Barbara Yungert 1974-5-16 161 Yuba Along Dry Creek, Lewis project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC310275  Heterotheca grandiflora Gordon H. True 1970-3-17 5204 Yuba Camp Far West dam on Bear River ca. 5 mi. E of Wheatland 56 Comment
  CAS-BOT-BC310276  Heterotheca grandiflora Lowell Ahart 1977-8-31 s.n. Yuba Sutter Buttes Area. About 2 miles northeast of Marysville, near Jack Slough on the Sam Shintaffer Farm 30 Comment
  RSA0075913  Heterotheca grandiflora A. A. Heller 1924-10-25 13833 Yuba Wheatland. Comment
  UCD110312  Hieracium argutum William Haley; S. Haley, D. Thomas, P. Grady 2011-10-20 s.n. Yuba Tahoe National Forest. Vista Point trail, east side of New Bullards Bar Reservoir, along trail. 633 Comment
  UCD133108  Hieracium argutum J. D. Jokerst 1984-7-5 2083 Yuba south west facing slope north of the junction of North Fork Yuba River and Deadwood Creek. 701 Comment
  RSA0038272  Hierochloe occidentalis J. M. Grant 1930-05 s.n. Yuba Marysville. Comment
  CAS-BOT-BC55318  Hirschfeldia incana Lowell Ahart 1974-5-1 s.n. Yuba About 5 miles east of Loma Rica. 400 Comment
  CAS-BOT-BC55319  Hirschfeldia incana Lowell Ahart 1981-6-13 2855 Yuba Near McGinn Hill, Loma Rica. 300 Comment
  SEINET7930195  Hoita orbicularis Ashley N. Egan, L. Egan 2005-6-23 279 Yuba In a meadow e of powerlines ca 50 yds w of Fountain Hill Rd, ca 5 airmiles N of Dobbins.; 0 840 Comment
  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
  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
  UCR206948  Holcus lanatus George K. Helmkamp, E. A. Helmkamp 2009-5-28 14834 B Yuba Sierra Nevada Mountains Foothills, along CA-49, 2.2 miles north of the Camptonville exit 811 Comment
  CHSC78123  Holozonia filipes Lowell Ahart 2000-6-11 8463 Yuba On the bottom of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville road, about 2 miles north of the intersection of Waldo Road and Smartville road, about 6 miles (air) south of Smartville. 146 Comment
  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
  UC1777687  Holozonia filipes Robert E. Preston 1997-10-30 1059 Yuba 300 ft N of Doolittle Dr. Hutchinson Creek; Beale Air Force Base Comment
  CAS-BOT-BC289260  Hordeum brachyantherum Pat Morgan 1981-5-17 115 Yuba Jct. Hwy. 49 & Yuba Ct. Rd. E21 Comment
  UCD33667  Hordeum brachyantherum subsp. brachyantherum Beecher Crampton 1971-6-18 8740 Yuba Sierra Foothill Range Field Station. Ca. 6.5 miles E of Browns Valley, E of headquarters. Comment
  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
  RSA726566  Hordeum marinum subsp. gussoneanum L. Ahart 2007-5-14 13860 Yuba About 1/2 mile north of Fruitland Road, about 13.5 miles (air) northeast of Marysville. 29 Comment
  UCD85831  Hordeum marinum subsp. gussoneanum Beecher Crampton 1957-6-5 4129 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  UCD85847  Hordeum marinum subsp. gussoneanum Beecher Crampton 1966-6-14 7755 Yuba 1 mile east of Brownsville. 731 Comment
  UCD86150  Hordeum murinum subsp. glaucum Beecher Crampton 1962-4-17 6172 Yuba Ca. 2 miles south of Marysville. Comment
  UCD86143  Hordeum murinum subsp. leporinum Beecher Crampton 1957-6-5 4164 a Yuba In front of old Stewart and Bros. and Wells Fargo Store. Site of Timtuctoo. Comment
  UCD86154  Hordeum murinum subsp. leporinum Beecher Crampton 1962-4-24 6250 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  CHSC84161  Horkelia californica subsp. dissita Lowell Ahart 2003-6-29 10318 Yuba Along a wash, on the east side of Ponderosa Way, about 1 1/2 miles north of La Porte Road, about 1 mile (air) west of Brownsville. 701 Comment
  CAS-BOT-BC536174  Horkelia californica var. elata Alice Eastwood 1921-5-22 10545 Yuba Los Vergils Comment
  CAS-BOT-BC536175  Horkelia californica var. elata Alice Eastwood 1921-5-22 10545 Yuba Los Vergils Comment
  UCD113558  Horkelia tridentata Kathleen Keliher 1975-5-6 93 Yuba 300 meters off La Porte Road, 2 miles from Forbestown Road. 914 Comment
  CHSC11350  Horkelia tridentata subsp. flavescens Lowell Ahart 1970-4-5 Yuba Near Challenge. 914 Comment
  JEPS121742  Horkelia tridentata var. tridentata L. P. Janeway 2014-4-15 11226 Yuba Northern High Sierra Nevada. Plumas National Forest; about halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River), near Road 18N01A close to its lower end. Comment
  UCD106125  Hosackia oblongifolia R. O. Hanes 1991-5-21 14 Yuba Hornswoggle Ck area. Tahoe Forest. 682 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
  CDA19000  Hydrilla verticillata R. Kerr, E. Storm 2000-10-3 PDR 829572 Yuba Inhabiting in medium density of 0.01 acre pond in the vicinity of Marysville-Oregon House. 0 Comment
  CHSC79379  Hydrilla verticillata T. C. Fuller; G. D. Barbe 1976-11-1 2231 Yuba 9th and B Streets, Marysville. Comment
  UCR15195  Hydrilla verticillata Keith Miller 1976-11-24 s.n. Yuba Marysville, Ellis Lake Comment
  CDA1445  Hydrilla verticillata G. D. Barbe, T. C. Fuller 1976-11-1 2231 Yuba 9th and B Streets, Marysville Southeast edge of freshwater Ellis Lake, to 4-1/2 feet deep. 0 Comment
  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
  CDA43046  Hydrilla verticillata David Kratville 2014-9-9 s.n. Yuba Trantham property, Oregon House. 0 Comment
  RSA289629  Hydrilla verticillata G. D. Barbe, T. C. Fuller 1976-11-1 2231 Yuba 9th and B Streets, Marysville. Comment
  SEINET14165650 Image available Hydrilla verticillata T. C. Fuller, G. D. Barbe 1976-11-1 2231 Yuba SE edge of freshwater Ellis Lake, to 4-1/2' deep; 9th and B Streets, Marysville Comment
  UCD138152  Hydrilla verticillata Richard Yeo 1976-11-1 s.n. Yuba Marysville, Lake Ellis, 9th and B street. Comment
  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
  CHSC97121  Hypericum anagalloides Lowell Ahart 2007-8-7 14407 Yuba Hampshire Creek Meadow, about 30 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS113686  Hypericum anagalloides Lowell Ahart 2007-8-7 14407 Yuba Hampshire Creek Meadow, about 30 yards east of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  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
  UC1122103  Hypericum concinnum M. A. Elvin 1933-6-7 25 Yuba 4 mi. s.w. McCourtney Crossing; Smartsville Quad. Comment
  CHSC84235  Hypericum formosum var. scouleri Lowell Ahart 2003-7-6 10351 Yuba In a meadow, east of the power line, about 50 yards west of Fountain Hill Road, about 5 miles (air) north of Dobbins. 836 Comment
  UCD110401  Hypericum perforatum subsp. perforatum Barbara Yungert 1974-5-21 168 Yuba North of Yuba River, F-3 project area, Sierra Foothill Field Station. Comment
  CHSC97504  Hypochaeris glabra Lowell Ahart 2007-5-12 13770 Yuba Along the road to the power towers, about 20 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113527  Hypochaeris glabra Lowell Ahart 2007-5-12 13770 Yuba Along the road to the power towers, about 20 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  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
  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
  UCD138742  Iris hartwegii R. O. Hanes 1991-5-21 13 Yuba Hornswoggle Ck area. Tahoe Forest. 682 Comment
  CHSC112858  Iris hartwegii subsp. hartwegii L. P. Janeway 2014-4-24 11236 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  UC571183  Iris macrosiphon Herbert L. Mason 1927-5-11 3724 Yuba near Dobbins 457 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
  CHSC63234  Isoetes nuttallii Lowell Ahart 1994-6-5 7292 Yuba On the north side of Costa Creek, on the north side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  CAS-BOT-BC69895  Isoetes nuttallii Lowell Ahart 1980-6-19 2412 Yuba 4.5 mi. e. of Challenge. 900 Comment
  SBBG119955  Isoetes nuttallii L. Ahart 2004-4-27 10750 Yuba ca. 0.5 air mi SE of Woodleaf 950 Comment
  CAS-BOT-BC69840  Isoetes orcuttii Gordon H. True; J. T. Howell 1967-6-13 3551 Yuba Ca. 5 mi. e. of Wheatland and 1 mi. n. of Bear River. 54 Comment
  CHSC78207  Isolepis cernua Lowell Ahart 2000-5-25 8399 Yuba On the sides of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  CHSC45187  Isolepis setacea Lowell Ahart 1980-6-19 2394 Yuba In small seep along the edge of a dirt road, about 3 air miles south-east of Challenge. 731 Comment
  CHSC84141  Isolepis setacea Lowell Ahart 2003-7-2 10348 Yuba In a small stream, on the east side of Fountain Hill Road, about 3 miles south of Oregon Hill Road, about 1/2 mile (air) north of Fountain House Hill, about 3 miles (air) northeast of Dobbins. 841 Comment
  SD130997  Isolepis setacea Lowell Ahart 1980-6-19 2394 Yuba 3 miles southeast of Challenge 800 Comment
  SEINET3441876  Isolepis setacea Unknown 2003-7-6 10363 Yuba Dobbins, Dobbins, about 5 air miles north, east of the power line, about 60 yards northwest of Fountain Hill Road 830 Comment
  CAS-BOT-BC340264  Jensia rammii Lowell Ahart 2007-5-12 13772 Yuba About 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road about 13 miles (air) northeast of Marysville 28 Comment
  CAS-BOT-BC340266  Jensia rammii 1930-4-12 s.n. Yuba Texas hill road Comment
  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
  UCD37135  Jensia rammii Beecher Crampton 1957-6-5 4154 Yuba 1.3 miles east of Oregon House Store. Comment
  CAS-BOT-BC340265  Jensia rammii Peter H. Raven 1953-5-9 5482 Yuba 2 miles from Brownsville on road to Dobbins Comment
  CAS-BOT-BC101878  Juglans R. S. Ferris 1927-11-6 6943 Yuba between Brown Valley & Yuba River Comment
  SBBG34171  Juglans hindsii M. A. Brayton 1964-5-23 43 Yuba slough area at NW end of Ellis Lake 18 Comment
  CDA39164  Juncus acuminatus L. Ahart 2002-10-9 9955 Yuba Along a small stream, below the high water line of Sly Creek Reservoir, about 1/8 mile southwest of the Day Camp, Sly Creek Reservoir. Comment
  CHSC47518  Juncus acuminatus Lowell Ahart 1981-7-13 2861 Yuba About 1/2 mile west of McGinn Hill, east of Loma Rica. 274 Comment
  CHSC96931  Juncus acuminatus Lowell Ahart 2007-6-22 14215 Yuba Sides of a new ditch, near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC96986  Juncus acuminatus Lowell Ahart 2007-8-7 14412 Yuba Hampshire Creek Meadow, about 5 yards west of the dirt road, about 1 mile (air) east of Clipper Mills. On the east side of a small pond, on the west side of the dirt road. 1021 Comment
  JEPS103550  Juncus acuminatus Lowell Ahart 2002-10-9 9955 Yuba Along a small stream, below the high water line of Sly Creek Reservoir, ca 1/8 mile SW of the Day Camp, Sly Creek Reservoir. 1072 Comment
  RSA726653  Juncus acuminatus L. Ahart 2007-6-22 14215 Yuba 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 29 Comment
  JEPS118341  Juncus arcticus var. balticus Lowell Ahart 2011-5-30 17358 Yuba About 20 yards north of the cross fence, on the west side of the fence along Fruitland Road, about 41/2 miles (air) southwest of Loma Rica 34 Comment
  CHSC84166  Juncus articulatus Lowell Ahart 2003-7-2 10345 Yuba In a small stream, on the west side of Fountain Hill Road, about 3 miles south of Oregon Hill Road, about 1/2 mile (air) north of Fountain House Hill, about 3 miles (air) northeast of Dobbins. 841 Comment
  CHSC116334  Juncus balticus subsp. ater Lowell Ahart 2015-11-19 20674 Yuba 100 yards or more north of the spillway area, below the high water line, west side of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  HSC13984  Juncus balticus subsp. ater T. F. Newman 1964-4-12 64 Yuba 9 mi. N of Marysville on Hwy. (alternate) 40, 1 mi. E, Feather River Comment
  CHSC113184  Juncus bufonius var. bufonius Lowell Ahart 2013-11-30 19315 Yuba On the southeast side of Dry Creek, about 30 yards southeast of Willow Glen Creek, below the high water line of Collins Lake, about 30 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  CHSC47528  Juncus bufonius var. bufonius Lowell Ahart 1979-6-3 1916 Yuba About 1 mile south of Challenge. 670 Comment
  JEPS113531  Juncus bufonius var. bufonius Lowell Ahart 2007-6-22 14216 Yuba Sides of a new ditch, near a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS113861  Juncus bufonius var. bufonius Lowell Ahart 2007-5-12 13818 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  RSA727525  Juncus bufonius var. bufonius L. Ahart 2007-5-12 13818 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  UCR231326  Juncus bufonius var. bufonius George K. Helmkamp, E. A. Helmkamp 2011-5-6 17202 Yuba East edge of Sacramento Valley, Spenceville Road, 4.2 miles northwest of Wheatland 55 Comment
  CHSC47537  Juncus bufonius var. occidentalis Lowell Ahart 1979-6-3 1917 Yuba On the bottom and sides of a small man made depression in a logged over area, about 1 mile south of Challenge. 670 Comment
  CHSC78330  Juncus bufonius var. occidentalis Lowell Ahart 2000-6-23 8503 Yuba About 100 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  CHSC97505  Juncus capitatus Lowell Ahart 2007-5-12 13819 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  UCD80380  Juncus capitatus CNPS SN Foothill Team 2005-3-17 SNFN 0019 b Yuba CDFG Spenceville Wildlife Area. From CA Highway 20 east, right on Smartville Road to Spenceville Wildlife Area, CDFG. Plot is accessible from 1st Fish and Game gate on E side of Spenceville Road, Horsetrail (N/S). Location is ca. 2/3 mile along horse trail, then SW between trail and Smartville Road. 195 Comment
  CDA2698  Juncus capitatus J. T. Howell, G. H. True 1967-6-13 3574 Yuba Camp Far West Reservoir, on Bear River east of Wheatland. Comment
  CHSC47544  Juncus covillei Lowell Ahart 1980-8-12 2546 Yuba On a large gravel bar that is formed from a debris dam across Slate Creek, a little west of where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  CHSC96873  Juncus covillei Lowell Ahart; Lawrence Janeway, Linnea Hanson 2007-7-13 14294 Yuba On the south side of Hampshire Creek, just east of the cement dam on Hampshire Creek, east of a large wet meadow, about 100 yards east of the poor Forest Road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  HSC98444  Juncus covillei L. Ahart, L. P. Janeway, L. Hanson 2007-7-13 14294 Yuba S side of Hampshire Creek, E of dam, 100 yds. E of Forest Rd., 1 mi. E of Clipper Mills 1021 Comment
  RSA653951  Juncus covillei Beecher Crampton 1966-6-14 7759 Yuba 1 mile east of Brownsville on La Porte road. 732 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
  JEPS114914  Juncus cyperoides Lowell Ahart 2008-7-9 15049 Yuba In a small meadow, about 50 yards northwest of the dirt road (road now destroyed), north part of the Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills 1015 Comment
  JEPS115058  Juncus cyperoides Lowell Ahart, Lawrence Janeway, Linnea Hanson 2007-9-18 14496 Yuba Along a small stream, about 100 yards northwest of the dirt road, north part of Hampshire Creek Meadow, about 1 mile (air) east of Clipper Mills 1015 Comment
  RSA794388  Juncus cyperoides P. F. Zika, Barbara L. Wilson, L. Ahart, L. P. Janeway 2011-8-5 25717 Yuba Southwest edge of Hampshire Meadow, 1 air mile east of Clipper Mills, northern Sierra Nevada Highlands. 1025 Comment
  CHSC84203  Juncus dubius Lowell Ahart 2003-7-2 10346 Yuba In a small stream, on the west side of Fountain Hill Road, about 3 miles south of Oregon Hill Road, about 1/2 mile (air) north of Fountain House Hill, about 3 miles (air) northeast of Dobbins. 841 Comment
  JEPS104082  Juncus dubius Lowell Ahart 2003-7-2 10346 Yuba In a small stream, on the w side of Fountain Hill Rd, ca 3 mi south of Oregon Hill Rd, ca 1/2 mi (air) n of Fountain House Hill, ca 3 mi (air) ne of Dobbins. 841 Comment
  UCD80385  Juncus effusus CNPS SN Foothill Team 2005-7-5 SNNR 0473 a Yuba CDFG Daugherty Hill Wildlife Area. 280 Comment
  JEPS104445  Juncus effusus subsp. pacificus Lowell Ahart 2003-7-2 10347 Yuba In a small stream, on the w side of Fountain Hill Rd, ca 3 mi south of Oregon Hill Rd, ca 1/2 mi (air) n of Fountain House Hill, ca 3 mi (air) ne of Dobbins. 841 Comment
  JEPS113846  Juncus effusus subsp. pacificus Lowell Ahart 2007-8-7 14406 Yuba Hampshire Creek Meadow, about 80 yards west of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  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
  SEINET3450942  Juncus effusus var. exiguus Unknown 2003-7-2 10347 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
  CHSC47551  Juncus ensifolius Lowell Ahart 1969-7-15 30 Yuba About 10 miles south of La Porte. 914 Comment
  UCD141542  Juncus hemiendytus L. Ahart 1980-5-25 2352 Yuba on the north side of New York Flat Road, west of the Cemetery, north of Brownsville. 731 Comment
  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
  CHSC97111  Juncus laccatus Lowell Ahart 2007-8-7 14414 Yuba On the east side of a small pond, on the west side of the dirt road, Hampshire Creek Meadow, about 5 yards west of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS113845  Juncus laccatus Lowell Ahart 2007-8-7 14414 Yuba On the east side of a small pond, on the west side of the dirt road, Hampshire Creek Meadow, about 5 yards west of the dirt road, about 1 mile (air) east of Clipper Mills 1021 Comment
  CHSC63198  Juncus orthophyllus Lowell Ahart 1994-6-27 7378 Yuba Near the northeast side of Schwartz Meadow, on the east side of La Porte Road, about 4 miles northeast of Strawberry Valley. 1219 Comment
  CHSC78332  Juncus orthophyllus Lowell Ahart 2000-6-23 8504 Yuba On the west side of a dirt road, about 100 yards east of the meadow along La Porte Road, about 100 yards north of Scales Road, about 3 miles northeast of Strawberry Valley. 1219 Comment
  JEPS95407  Juncus orthophyllus Lowell Ahart 1994-6-27 7378 Yuba 4 mi NE of Strawberry Valley (near NE side of Schwartz Meadow, E side of La Porte Road) 1219 Comment
  CHSC112956  Juncus oxymeris L. P. Janeway 2014-6-26 11423 Yuba Northern High Sierra Nevada. Plumas National Forest; small ephemeral meadow on a flattish bench at head of ephemeral northeastern tributary to Little Oregon Creek; 1.9 air km south-southeast of Pike County Peak; 0.24 km northeast of Oregon Hill Road, 0.15 km south of Peterson Ridge Road. 852 Comment
  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
  JEPS115068  Juncus tenuis Lowell Ahart 2007-11-1 14539 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  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
  UCD37136  Juncus tenuis Beecher Crampton 1957-6-5 4158 Yuba 1.3 miles east of Oregon House Store. Comment
  JEPS113746  Juncus usitatus Lowell Ahart 2007-6-30 14234 Yuba Near and west of new road pad, about 350 yards west of the power tower, about 100 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CAS-BOT-BC236790  Keckiella breviflora David D. Keck 1930-7-25 984 Yuba Bullards Bar Reservoir, Sierra Nevada 457 Comment
  POM195081  Keckiella breviflora subsp. glabrisepala D. D. Keck 1930-7-25 984 Yuba Bullards Bar Reservoir. 457 Comment
  CAS-BOT-BC235667  Keckiella breviflora var. glabrisepala David D. Keck 1930-7-25 984 Yuba Bullards Bar Reservoir 450 Comment
  UC2016501  Keckiella lemmonii Richard Olmstead 1986-6-14 845 Yuba Entrance to the Oregon Creek Picnic Ground. Jct of Oregon Cr. with middle fork Yuba River. Comment
  CHSC113175  Kickxia elatine Lowell Ahart 2013-11-30 19300 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  JEPS121313  Kickxia elatine Lowell Ahart 2013-11-30 19300 Yuba On the sides of a deep wash (Willow Glen Creek), NW of Dry Creek, below the high water line of Collins Lake, about 100 yards N of Marysville Road, about 2.5 miles W of Oregon House. Comment
  UCD80884  Kickxia elatine Robert E. Preston 2007-9-21 2577 Yuba 3.5 mi S of Olivehurst, at jct Plumas-Arboga Rd. and Old Marysville Rd. 14 Comment
  CAS-BOT-BC180849  Kochia scoparia Lemmel Jr. Osborne 1948-9-15 s.n. Yuba Near Marysville Comment
  CDA20191  Kyllinga brevifolia E. Storm 2003-7-21 PDR 1408233 Yuba Sacramento Valley; Vickie Dr in Marysville. 0 Comment
  CHSC112372  Lactuca virosa L. P. Janeway 2014-6-25 11420 Yuba Northern High Sierra Nevada. Plumas National Forest; Along Oregon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km northwest of Summit Hill; slope above Burnt Bridge Creek. 792 Comment
  CHSC112860  Lactuca virosa L. P. Janeway 2014-6-26 11425 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  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-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
  SBBG28004  Lasthenia fremontii A. Carter 1940-4-21 1528 Yuba 4.3 mi SE of Maryville rd to Spenceville 30 Comment
  UC718224  Lasthenia glaberrima Carl B. Wolf 1937-5-18 8735 Yuba 2 mi s Marysville; Sacramento Valley 18 Comment
  RSA21665  Lasthenia glaberrima C. B. Wolf 1937-5-18 8735 Yuba SacramenoValley, 2 mi S of Marysville. 18 Comment
  UCR169010  Lasthenia gracilis David Charlton 2005-5-16 8009 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  CHSC112856  Lathyrus brownii L. P. Janeway 2014-4-22 11230 Yuba Northern High Sierra Nevada. Plumas National Forest; in shallow bowl at head of Little Oregon Creek; 0.5 km southwest of Oregon Hill Road; 3.4 air-km south-southeast of Challenge. 823 Comment
  CHSC78145  Lathyrus hirsutus Lowell Ahart 2000-5-25 8394 Yuba On dry soil of open pasture field, near a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  JEPS98596  Lathyrus hirsutus Lowell Ahart 2000-5-25 8394 Yuba 6 air miles S of Smartville (field near a N branch of Dry Dreek, 2 mi N of intersection of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  CDA4179  Lathyrus hirsutus L. Ahart 2000-5-25 8394 Yuba Near a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. Comment
  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
  CHSC43421  Lathyrus sulphureus Lowell Ahart 1979-6-3 1919 Yuba About 1 mile south of Challenge. 640 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
  UCR234193  Layia chrysanthemoides George K. Helmkamp, E. A. Helmkamp 2011-4-10 17165 Yuba Sacramento Valley, along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland 44 Comment
  CAS-BOT-BC321710  Layia fremontii Gordon H. True 1966-4-7 2679 Yuba About 5 miles E of Wheatland and 1 mile N of Bear River. 54 Comment
  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
  RSA503985  Layia fremontii B. G. Baldwin 1988-3-21 687 Yuba 3.3 miles W of junction with County Road E21 (road to Collins Lake, Bullards Bar Reservoir) along CA State Hwy 20. Comment
  SEINET7042577  Layia fremontii A. G. Vestal 1963-4-30 s.n. Yuba 3.5 miles northwest of Wheatland. Wheatland quadrangle UTM Zone 10, 631043mN, 4323298mN. Comment
  SJSU11676  Layia fremontii J. B. Willis Jr. 1969-4-19 Yuba 7 mi E of Marysville on Hammonton-Smartville Rd Comment
  JEPS124300  Leersia oryzoides Lowell Ahart 2015-11-19 20682 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  CDA32426  Leersia oryzoides L. Ahart 1999-9-17 8239 Yuba South of Woodruff Lane, just east of Mathews Road, east of Sam Shintaffer s rice dryer, about 5 miles (air) northeast of Marysville. Comment
  SEINET13710836  Leersia oryzoides Lowell William Ahart, Lowell William Ahart 1999-1 8239 Yuba 5 Mi NE of Marysville Comment
  CHSC116271  Leontodon saxatilis subsp. longirostris Lowell Ahart 2015-11-19 20669 Yuba 100 yards or more north of spillway area, below high water line, west of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  CHSC97496  Leontodon saxatilis subsp. longirostris Lowell Ahart 2007-5-14 13874 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC97691  Leontodon saxatilis subsp. longirostris Lowell Ahart 2007-11-1 14532 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  JEPS113390  Leontodon saxatilis subsp. longirostris Lowell Ahart 2007-5-14 13874 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville Comment
  JEPS124269  Leontodon saxatilis subsp. longirostris Lowell Ahart 2015-11-19 20669 Yuba West side of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  UCR257542  Leontodon taraxacoides George K. Helmkamp 2014-4-17 22760 Yuba Sierra Nevada Foothills, Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville 264 Comment
  CHSC43652  Lepidium campestre Lowell Ahart 1979-6-3 1922 Yuba About 1 mile south of Challenge. 640 Comment
  UCD82842  Lepidium campestre Robin McMaster 1973-6-24 482 Yuba Oregon Creek Campground. 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
  CHSC90339  Lepidium nitidum var. nitidum Lowell Ahart 2005-3-11 11604 Yuba In the middle of the poor dirt road, west of a large rock outcrop, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 386 Comment
  CDA40067  Leptosiphon filipes Yuba County School Children 1930-4-12 s.n. Yuba [No further data.] 0 Comment
  CHSC45456  Leptosiphon harknessii Lowell Ahart 1980-8-12 2568 Yuba On a gravel bar, a little below where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  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
  CDA8198  Lessingia nemaclada L. Ahart 2002-10-1 9979 Yuba On the east side of the dirt road, east of the upper part of Englebright Reservoir on the Yuba River, along Rice s Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20. Comment
  CHSC83071  Lessingia nemaclada Lowell Ahart 2002-10-10 9979 Yuba On the east side of the dirt road, east of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20. 166 Comment
  SEINET11263974  Lessingia nemaclada Lowell Ahart 2002-10-10 9979 Yuba On the east side of the dirt road, east of the upper part of Engelbright Reservoir on the Yuba River, along Rice's Crossing Road, about 2 miles (air) north of Bridgeport, about 18 miles north of Highway 20.; 0 166 Comment
  UCR263565  Lessingia nemaclada Lowell Ahart 2002-10-10 9979 Yuba Sierra Nevada Mtns., E of the upper part of Englebright Reservoir on the Yuba River, along Rice's Crossing Road, c. 2 miles (air) N of Bridgeport, c. 18 miles N of Highway 20 166 Comment
  SEINET11448039 Image available Lessingia virgata B. Crampton 1974-10-11 9094 Yuba 3 miles southwest of Brown's Valley along Hwy 20 46 Comment
  UCD33715  Lessingia virgata Beecher Crampton 1972-6-20 8816 Yuba ca. 3 miles S.W. of Brown's Valley. Comment
  UCR118921  Lessingia virgata Beecher Crampton 1974-10-11 9094 Yuba Sacramento Valley, 3 miles southwest of Brown's Valley along Hwy 20 46 Comment
  CHSC110968  Leucanthemum vulgare L. P. Janeway 2013-8-29 11199 Yuba Northern High Sierra Nevada. Plumas National Forest; shady logging-landing-flat along little-used dirt road (20N03) along west side of Rose Ranch. 1314 Comment
  UCD92453  Leymus X multiflorus Collector Unknown 1948-1 s.n. Yuba Near Marysville. Comment
  RSA129554  Leymus triticoides F. W. Embree 1934-4-30 47 Yuba 4 miles ENE. of Marysville B.M 23 Comment
  CAS-BOT-BC130619  Lilium humboldtii Mrs. J. E. Cramsie 1923-6-14 s.n. Yuba Smartsville Comment
  CAS-BOT-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
  CAS-BOT-BC130623  Lilium humboldtii Albert Vollmer 1949-7-6 13 -E Yuba 1 mile from Challenge on Challenge-Camptonville Road Comment
  UCD82295  Lilium humboldtii Robin McMaster 1973-6-24 507 Yuba North San Juan. 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-BC130868  Lilium pardalinum Volney Rattan s.n. Yuba unspecified Comment
  CAS-BOT-BC130869  Lilium pardalinum Anna Cramsie 1933-4-24 s.n. Yuba Smartsville Comment
  CAS-BOT-BC130870  Lilium pardalinum Mrs. J. E. Cramsie 1923-6-14 s.n. Yuba Smartsville Comment
  CAS-BOT-BC110649  Limnanthes alba Peter H. Raven 1953-5-9 5477 Yuba 2 miles from Brownsville on road to Dobbins. Comment
  POM311140  Limnanthes alba Lincoln Constance 1949-4-29 s.n. Yuba Oregon House, 2 miles W. of Dobbins. 457 Comment
  UC794374  Limnanthes alba subsp. alba Lincoln Constance 1949-4-29 3280 Yuba 2 mi w Dobbins; Oregon House 457 Comment
  SEINET6670288  Limnanthes alba var. alba L. Constance 1949-4-29 3280 Yuba Oregon House, 2 miles W of Dobbins. 457 Comment
  UC971813  Limnanthes douglasii subsp. rosea Annetta Carter 1942-5-3 1672 Yuba field s Marysville Comment
  SJSU10806  Limnanthes douglasii subsp. rosea L. J. Ericksen 1955-4-17 118 Yuba 2 mi S of Marysville 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
  CHSC43512  Limosella acaulis Lowell Ahart 1977-9-25 1592 Yuba On Shintaffer Farms, about 2 miles north-east of Marysville. 32 Comment
  UC1745669  Limosella acaulis Annetta M. Carter 1940-4-21 1526 Yuba 4.3 mi. SE of Marysville; ; 4.3 mi. SE of Marysville on road to Spenceville. Comment
  UCR118893  Linanthus bicolor Beecher Crampton 1962-4-24 6280 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
  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
  JEPS95375  Linanthus harknessii Lowell Ahart 1994-6-27 7379 Yuba 4 mi NE of Strawberry Valley (near E side of Schwartz Meadow, E side of La Porte Road) 1219 Comment
  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
  JEPS95147  Lindernia dubia var. anagallidea Lowell Ahart 1997-8-13 7860 Yuba about 2 1/4 air mi e of Borwn's Valley (on s side of Scott Forbes Road, 1/4 mi e of intersection of Scott Forbes Road and Peoria Road, just e of Gray Drive) 91 Comment
  CHSC117656  Linnaea borealis var. longiflora 2016-9-9 Yuba On the east side of road, after crossing Slate Creek on Old County Road to Scales, take first road to the right and go about 1/2 mile, near Stowman Ravine, about 3 miles (air) southwest of Poverty Hill Mine, about 8 miles (air) southwest of La Porte. 1214 Comment
  UCD81492  Linum bienne Christopher Michael Bronny 2009-3-23 4 Yuba Lower Sierra Nevada foothills. Area near Loma Rica. 158 Comment
  UCD110586  Linum bienne Barbara Yungert 1974-4-25 78 A Yuba Four wheel drive road, SC-14 project area, Sierra Foothill Field Station. Comment
  UCD33814  Linum usitatissimum Beecher Crampton 1973-6-22 8956 Yuba Yuba County, ca. 3 miles east of Brown's Valley on Peoria road. Comment
  UCD150657  Linum usitatissimum Collector unknown 1976-5-15 205 Yuba 0.9 mi S of Camptonville on Hwy 49. 762 Comment
  CHSC116039  Lipocarpha micrantha Lowell Ahart; John Dittes, Josephine Guardino, Steve Green 2015-11-14 20645 Yuba North of the spillway area, at the west side and near top of Lake Francis Dam, below the high water line of Lake Francis, about 1-1/2 miles south of Dobbins. 512 Comment
  CHSC90347  Lithophragma bolanderi Lowell Ahart 2005-3-11 11612 Yuba Large rock outcrop, south slope, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 395 Comment
  JEPS107403  Lithophragma bolanderi Lowell Ahart 2005-3-11 11612 Yuba Large rock outcrop, south slope, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica 395 Comment
  CAS-BOT-BC430983  Lithophragma bolanderi Junea Kelley 1920-4-24 s.n. Yuba Los Vergils Comment
  CAS-BOT-BC325969  Lithospermum californicum Charles Williams 1981-4-1 s.n. Yuba Near Brownsville. 609 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
  UCD66188  Lolium multiflorum Barbara Yungert 1974-5-1 G- 3 Yuba West of road near SC-12 fence line, SC-14 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC269071  Lolium perenne Lowell Ahart 1981-6-13 2842 Yuba Along new gravel road, NE side of McGinn Hill, east of Loma Rica 300 Comment
  UCD66633  Lolium temulentum Beecher Crampton 1965-6-17 7371 Yuba Ca. 3/4 mile north of Stanfield Hill, Willow Glen Creek. 396 Comment
  UCD112039  Lomatium marginatum Christopher Mallek 2008-5-5 IC3- 12 Yuba Indiana Creek. 617 Comment
  CHSC68466  Lomatium marginatum var. marginatum Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7734 Yuba Along 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
  CHSC96380  Lomatium marginatum var. marginatum L. P. Janeway 2006-5-24 8622 Yuba Northern High Sierra Nevada Foothills. East side of Ponderosa Way 1.3 km north of La Porte Road and Brownsville. 686 Comment
  JEPS14509  Lomatium nudicaule Rimo Bacigalupi with G. T. Robbins and Francia Chisaki 1956-4-19 5620 Yuba 0.5 mi. n. Dobbins Ranger Station (CA State Dept. of Forestry) (along rd. from Oregon House to Dobbins) 548 Comment
  CHSC59490  Lomatium utriculatum H. E. Mac Lennan 1992-4-15 19 Yuba 20 air miles se of Oroville. 518 Comment
  SEINET7042410  Lomatium utriculatum A. G. Vestal 1963-5-30 s.n. Yuba Road west to Forbestown. Ca 1.5 miles east of Forbestown and 2.6 miles west of Brownsville. Rackerby quadrangle UTM Zone 10, 648106mE, 4372559mN. Comment
  JEPS120537  Lonicera involucrata L. P. Janeway, Tim Hanson 2013-4-25 11093 Yuba Northern High Sierra Nevada. Plumas National Forest; 50 m east of Oregon Hill Raod between Burnt Bridge Creek and Little Oregon Creek. Comment
  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
  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
  UCR169020  Lotus micranthus David Charlton 2005-5-16 8010 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  JEPS126011  Lotus oblongifolius var. oblongifolius D. W. Taylor 2001-6-18 17788 Yuba Meadow along Forest Road 35 about 2 road miles SW of Union Hill. Comment
  RSA795538  Lotus purshianus var. purshianus L. Ahart 2011-6-7 17393 Yuba Huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 air miles northeast of Marysville. 66 Comment
  SEINET3563125 Image available Lotus purshianus var. purshianus G. K. Helmcamp, E. A. Helmkamp 2008-10-6 14201 Yuba Sacramento Valley: junction of CA-65 and Ostrom No. 3 Road, SE of Olivehurst 24 Comment
  SEINET7042627  Lotus wrangelianus A. G. Vestal 1963-5-7 s.n. Yuba Ca. 3.5 miles north of Wheatland. Camp Far West quadrangle UTM Zone 10, 640908mE, 4323324mN. Comment
  CHSC116313  Ludwigia palustris Lowell Ahart 2015-11-19 20672 Yuba 100 yards or more north of the spillway area, below the high water line, west side of Lake Francis, about 1 1/2 miles south of Dobbins. 512 Comment
  CHSC83042  Ludwigia palustris Lowell Ahart 2002-10-9 9969 Yuba On the south bank of Lost Creek, below the high water line of Sly Creek Reservoir, about 200 yards southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  RSA647528  Lupinus Hobart Onstod 1946-3-26 s.n. Yuba South Marysville Comment
  UCD105879  Lupinus albicaulis Barbara Yungert Date Unknown 183 Yuba Koch Landing, KL - 11 project area, Sierra Foothill Field Station. Comment
  SEINET10544010  Lupinus albicaulis subsp. shastensis Duane Isely 1965-5-29 Isely 9646 Yuba Roadsides and disturbed pine woodlands, state 49. Flowers white Comment
  UC710389  Lupinus albifrons C. P. Smith 1946-5-2 46252 Yuba Hiway 20, 0.3 mi e Smartville; e of Smartville Comment
  UCD105997  Lupinus albifrons Barbara Yungert 1974-5-21 169 Yuba north side of Yuba River, Sierra Foothill Field Station. Comment
  CAS-BOT-BC196029  Lupinus albifrons var. albifrons Saichi Kawahara 1968-4-13 279 Yuba Highway 20, at north bank of Yuba River, Park's Bar 91 Comment
  UCR194896  Lupinus albifrons var. collinus George K. Helmkamp, E. A. Helmkamp 2007-5-26 12135 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
  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
  JEPS118298  Lupinus benthamii Lowell Ahart 2011-6-7 17395 Yuba On the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  SEINET10903817  Lupinus benthamii Wagnon 1963-6-11 WAGNON s.n. Yuba At roadside at end of scott-forbes road, in vicinity of sierra foothills range Field station, ca 3 miles n of smartville Comment
  SEINET10970218  Lupinus benthamii Charles Piper Smith 1948-4-27 Smith 48175 Yuba Junction dobbins and browns valley-brownsville roads, stanfield hill, 0.5 mile Sw Comment
  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
  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
  UC710388  Lupinus bicolor C. P. Smith 1946-5-2 46249 Yuba 3 mi se Hammonton Road Smartville; Smartville - 3 mi se Hammonton Road Comment
  UC710390  Lupinus bicolor C. P. Smith 1946-5-1 46244 Yuba 1.2 mi n Hiway 99e Wheatland; Wheatland - 1.2 mi n Hiway 99e Comment
  UCD107333  Lupinus bicolor Barbara Yungert 1974-4-16 46 Yuba Cambell Valley, Sierra Foothill Field Station. 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
  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
  SD236292  Lupinus nanus G. K. Helmkamp, E. A. Helmkamp 2008-5-20 13463 Yuba Sierra Nevada Mountains Foothills: along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek. 466 Comment
  SEINET1908777  Lupinus nanus G. K. Helmkamp, E. A. Helmkamp 2008-1 13463 Yuba Sierra Nevada Mountains Foothills: along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek (Camptonville 7.5' Q) 466 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
  UC710394  Lupinus nanus C. P. Smith 1946-4-25 46221 Yuba Honcut Road 3.8 mi n Loma Rica Comment
  UC710404  Lupinus nanus C. P. Smith 1946-5-1 46243 Yuba Hiway 99e, 1.2 mi n Wheatland; Wheatland - 1.2 mi n Hiway 99e Comment
  SJSU14295  Lupinus nanus N. A. Hopkins 1989-4-28 1482 Yuba Ridge Rd to Allegheny c. 3 mi off Hwy 49 1219 Comment
  CHSC108215  Lupinus nanus var. vallicola Lowell Ahart 2011-6-7 17394 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UC710406  Lupinus pachylobus C. P. Smith 1946-5-2 46259 Yuba Browns Valley Road 7.1 mi sw Brownsville; sw of Brownsville Comment
  SD50709  Lupinus polyphyllus subsp. superbus Darley F. Howe 1959-8-2 2780 Yuba 1.0 mile west of Yuba Pass Comment
  SD236293  Lupinus polyphyllus var. burkei G. K. Helmkamp, E. A. Helmkamp 2008-5-20 13490 Yuba Foothills, northern Sierra Nevada Mountains: Camptonville, at the junceion of Henness Pass road and CA-49. 822 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
  UC1129712  Lupinus stiversii F. W. Embree 1934-4-30 46 Yuba 3 1/2 mi ene Marysville BM; Marysville Quad., ene of Marysville BM Comment
  UCD109580  Lupinus stiversii Kathleen Keliher 1975-4-30 83 Yuba directly below bridge on State Route 20 near Yuba River. 182 Comment
  SEINET10490993  Lupinus vallicola subsp. vallicola Smith 1948-4-27 Smith 48184 Yuba Jct dobbins and browns valley--brownsville roads. Stanfield hill, 3.4 mi ne. Comment
  CHSC106354  Luzula cascadensis Lowell Ahart 2010-7-27 16914 Yuba On the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam. 1219 Comment
  JEPS117663  Luzula cascadensis Lowell Ahart 2010-7-27 16914 Yuba On the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam 1219 Comment
  CDA39217  Luzula comosa G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3054 Yuba 3.6 miles northeast of Strawberry Valley on La Porta - Quincy Road, at Plumas County Line. Comment
  UCD142082  Luzula comosa Kathleen Keliher 1975-4-13 61 Yuba Sierra Foothill Field Station. Junction of Lower Cook Road and four wheel drive road, K 1-11 project area, Sierra Foothill Field Station. 243 Comment
  CHSC118444  Luzula macrantha L. P. Janeway 2016-5-11 11961 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
  CHSC47580  Luzula macrantha Lowell Ahart 1979-6-3 1915 Yuba About 1 mile south of Challenge. 670 Comment
  CHSC59617  Luzula macrantha Kathleen Keliher 1975-4-13 61 Yuba Junction of Lower Cook Road and four wheel drive road, K 1-11 project area, Sierra Foothill Field Station. 243 Comment
  JEPS118081  Luzula macrantha Lowell Ahart 2011-6-7 17419 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  CAS-BOT-BC441309  Luzula macrantha Gordon H. True 1963-5-2 1208 Yuba Sierra Nevada: Oregon Creek at jct. with middle Yuba River, at Freeman's Crossing 457 Comment
  SEINET6178448  Luzula macrantha Frank Polach 1967-4-22 11 Yuba Located 2.5 miles east of Brownsville.; 0 762 Comment
  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
  JEPS120941  Luzula subsessilis Lowell Ahart 2013-4-23 18567 Yuba Along Costa Creek, about 100 yards E of where the paved road crosses Costa Creek, about 2.5 air miles SE of the Forbestown Store. Comment
  CHSC83062  Lycopus americanus Lowell Ahart 2002-10-8 9942 Yuba On the edge of a pond, about 100 yards north of Long Ravine Road, about 300 yards southeast of the intersection of Camp Far West Road and Long Ravine Road there is a poor gate on the north side of the road, north of Camp Far West Reservoir. 121 Comment
  CHSC97134  Lycopus americanus Lowell Ahart 2007-6-30 14237 Yuba Near and west of new road pad, about 250 yards west of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS103439  Lycopus americanus Lowell Ahart 2002-10-8 9942 Yuba On the edge of a pond, ca 100 yards N of Long Ravine Road, ca 300 yards SE of the intersection of Camp Far West Road and Long Ravine Road there is a poor gate on the N side of the road, N of Camp Far West Reservoir. 121 Comment
  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
  CHSC97491  Lythrum hyssopifolia Lowell Ahart 2007-5-12 13798 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS113404  Lythrum hyssopifolia Lowell Ahart 2007-5-12 13798 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  SEINET7042652  Lythrum hyssopifolia A. G. Vestal 1963-5-30 s.n. Yuba Weedy depression near Dry Creek and north oh Sicard Flat. Smartville quadrangle UTM Zone 10, 642203mE, 4345148mN. Comment
  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
  UCR169017  Madia David Charlton 2005-5-16 8032 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
  UCD82294  Madia Robin McMaster 1973-6-24 505 Yuba Oregon Creek Campground. Comment
  POM186541  Madia elegans D. D. Keck 1932-7-1 1609 Yuba 1 mile SE of log Cabin Service Station, W of Camptonville. 610 Comment
  CAS-BOT-BC344594  Madia exigua Lewis S. Rose 1940-5-28 40393 Yuba Oregon House 457 Comment
  CHSC45008  Madia exigua Lowell Ahart 1979-7-3 1920 Yuba About 1 mile south of Challenge. 640 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
  UC1535367  Madia exigua Barbara Yungert 1974-5-9 138 Yuba along Road 1, p 1-12 project area, Sierra Foothill Field Station Sierra Foothills Comment
  CAS-BOT-BC344597  Madia exigua Lowell Ahart 1981-6-13 2839 Yuba Sutter Buttes Area. On the northeast side of McGinn Hill, Loma Rica 300 Comment
  UCD134259  Madia exigua Barbara Yungert 1974-5-9 138 Yuba along Road 1, P 1-12 project area, Sierra Foothill Field Station. 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
  CHSC108197  Madia gracilis Lowell Ahart 2011-6-7 17380 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  CHSC37191  Madia gracilis L. Ahart 1982-7-4 3660 Yuba Ca. 1/2 mi e of Brownsville along LaPorte Rd. 700 Comment
  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
  JEPS118437  Madia gracilis Lowell Ahart 2011-6-7 17380 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  SEINET13709234  Madia gracilis Lowell William Ahart, Lowell William Ahart 2003-1 10355 Yuba Along Fountain Hill Road 5 Mi. N of Dobbins (39 Deg 26'11.7"N, 121 Deg 12'07.3"W) 2746 Ft. 837 Comment
  SEINET3450907  Madia gracilis Unknown 2003-7-6 10355 Yuba Dobbins, Dobbins, about 5 air miles north, about 30 yards west of Fountain Hill Road Comment
  SEINET7072983  Madia gracilis A. G. Vestal 1963-5-29 s.n. Yuba About 0.4 mile west of Erle Road on Hammonton-Smartville Road. UTM Zone 10, 638165mE, 4337165mN. Coordinate datum: NAD27). Comment
  UCR189619  Madia gracilis George K. Helmkamp, E. A. Helmkamp 2007-8-29 12836 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
  HSC100825  Madia rammii Lowell Ahart 2007-5-12 13772 Yuba Bottom of swale, ~100 yd. SW of second power tower, ~300 yd. N of Fruitland Rd., 13 (air) mi. NE of Marysville. 28 Comment
  SEINET7072722  Madia sativa A. G. Vestal 1963-5-7 s.n. Yuba About 3.5 miles north of Wheatland on Jasper Lane. UTM Zone 10, 636590E, 4323573mN. Coordinate datum: NAD 27. Comment
  CHSC108195  Madia subspicata Lowell Ahart 2011-6-7 17381 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  UCD134347  Malacothrix clevelandii Collector Unknown 1925-5-17 1622 Yuba Marysville Buttes. Comment
  CAS-BOT-BC347374  Malacothrix floccifera Lewis S. Rose 1939-6-7 39244 Yuba N. Fork of Feather River, 3 mi. s. of Pulga 609 Comment
  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
  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
  CHSC51224  Marrubium vulgare Lowell Ahart 1981-6-13 2854 Yuba Growing along the edge of a new gravel road, on the west side of McGinn Hill, east of Loma Rica. 304 Comment
  HSC14232  Marrubium vulgare T. F. Newman 1964-2-22 10 Yuba 10 miles N of Marysville on Alt. 40. 5 mi. on Rameriz Rd. Comment
  UCD125021  Marrubium vulgare Barbara Yungert 1974-5-6 120 Yuba behind second house from west end, south of station, Sierra Foothill Field Station. Comment
  JEPS115060  Marsilea vestita subsp. vestita Lowell Ahart 2007-11-8 14579 Yuba On the strand of Camp Far West Reservoir, about 1/2 mile south of Rock Creek, about 1/8 mile north of Bear River, about 6 miles (air) northeast of Sheridan 73 Comment
  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
  UCD35775  Medicago arabica Beecher Crampton 1962-4-24 6288 a Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  CHSC43408  Medicago lupulina Lowell Ahart 1979-6-3 1921 Yuba About 1 mile south of Challenge. 670 Comment
  CHSC76108  Medicago lupulina Lowell Ahart 1999-9-5 8193 Yuba On the disturbed area on the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 24 Comment
  UCD33105  Medicago lupulina Beecher Crampton 1966-6-14 7743 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  UCD107902  Medicago polymorpha Barbara Yungert 1974-5-1 103 Yuba Near SC-12 fence, southeast corner of SC-14 project area, Sierra Foothill Field Station. Comment
  UCD37855  Medicago polymorpha Beecher Crampton 1962-4-24 6259 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  UCD110817  Melica Christopher Mallek 2008-1 DF1- 13 Yuba Daken Flat. 675 Comment
  CAS-BOT-BC269365  Melica californica Beecher Crampton 1967-5-17 7940 Yuba 5 miles east Brown's Valley, UC - Sierra Foothill Range Field Station Comment
  UC1254609  Melica californica Beecher Crampton 1967-5-17 7940 Yuba 5 mi e Brown's Valley (Sierra Foothill Range Field Station - UC) Comment
  UCD80571  Melica californica CNPS SN Foothill Team 2005-3-17 SNFN 0060 Yuba CDFG Spenceville Wildlife Area, one mile south of Smartville and Pitman Road junction, northeast of the Pittman Pond. 180 Comment
  UCD86452  Melica californica Beecher Crampton 1957-6-5 4149 Yuba 1/2 mile W of Oregon House Post Office. Comment
  SEINET4671581  Melica californica C. Aarstad 1979-4-28 s.n. Yuba At junction of Route 20 and north fork of Yuba in Browns Valley 183 Comment
  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
  UCD88662  Melica subulata W. R. Powell 1968-5-24 1553 Yuba 5 miles SSE of Challenge, 3/4 miles south of Greenville. In pine forest community. 640 Comment
  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
  SEINET5322428  Melica torreyana M. Mooney 1982-1 460 A Yuba UCB Sierra Field Station, road between station and main highway 183 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
  JEPS104591  Mentha spicata Lowell Ahart 2003-7-17 10417 Yuba On the bottom of a stream, on the w side of Smartville road, ca 2 mi n of the intersection of Waldo Rd and Smartville Rd, ca 6 mi (air) south of Smartville. 129 Comment
  SEINET3441879  Mentha spicata Unknown 2003-7-17 10417 Yuba Smartville, Smartville, about 6 air miles south, west side of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road 120 Comment
  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
  SEINET7067146  Micropus amphibolus A. G. Vestal 1947-4-30 s.n. Yuba About 5.1 miles west of Smartville. Coordinate datum: NAD27. UTM Zone 10, 641421mE, 4340515mN. Comment
  CAS-BOT-BC348442  Micropus californicus var. californicus Gordon H. True 1963-4-17 1187 Yuba About 10 miles east of Marysville, on Marysville-Grass Valley Hwy. 30 Comment
  CHSC68469  Micropus californicus var. californicus Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7723 Yuba On the bank of the Browns Valley Water Ditch, south of the poor dirt road, south of Dry Creek, about 1 mile east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 182 Comment
  JEPS118294  Micropus californicus var. californicus Lowell Ahart 2011-6-7 17382 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  JEPS94318  Micropus californicus var. californicus Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7723 Yuba about 17 mi ne of Marysville (on bank of the Browns Valley Water Ditch, s of the poor dirt road, s of Dry Creek, about 1 mi e of Scott Forbes Road (Long Bar Road)); Browns Valley Water Ditch 182 Comment
  UCR257159  Micropus californicus var. californicus George K. Helmkamp 2014-4-17 22769 Yuba Sierra Nevada Foothills, Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville 264 Comment
  CAS-BOT-BC348440  Micropus californicus var. californicus L. S. Smith 1932-4-29 2642 Yuba South of Spenceville Road to Sheridan 304 Comment
  CAS-BOT-BC348441  Micropus californicus var. californicus Alice Eastwood 1921-5-22 10534 Yuba Los Vergils Comment
  UCD134518  Micropus californicus var. californicus Barbara Yungert 1974-4-25 81 Yuba lower SC-14 project area, Sierra Foothill Field Station. Comment
  UCD118914  Microsteris gracilis Kathleen Keliher 1975-5-15 110 Yuba Along Cleaveland Road across from Mountain View property, 3 miles E of Camptonville. 914 Comment
  RSA21295  Microsteris gracilis subsp. humilis C. B. Wolf 1937-5-13 8640 Yuba Sierra Nevada Foothills, 2.7 mi below Stanfield Hill on road to Browns Valley. 183 Comment
  UCR194906  Mimulus aurantiacus George K. Helmkamp, E. A. Helmkamp 2007-5-26 12129 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville 802 Comment
  CAS-BOT-BC150495  Mimulus aurantiacus var. grandiflorus Mrs. J. E. Cramsie 1923-5-22 s.n. Yuba Smartsville Comment
  JEPS28075  Mimulus aurantiacus var. grandiflorus Rimo Bacigalupi and L. Heckard 1961-6-16 7830 Yuba e end Bullards Bar Dam (along road from highway 49 to Dobbins); Canyon of North Fork of Yuba River 480 Comment
  RSA0114654  Mimulus aurantiacus var. grandiflorus Lowell A. Ahart 2015-4-30 20130 Yuba On the east side of the quarry, about 1.25 mile (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. 710 Comment
  UC614489  Mimulus aurantiacus var. grandiflorus L. Constance 1938-6-8 2291 Yuba 4 mi nw North San Juan; Sierra Nevada foothills, Middle Fork Yuba River 426 Comment
  UCD122353  Mimulus aurantiacus var. grandiflorus Barbara Yungert 1974-5-4 114 Yuba south side of rock pile, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC9749  Mimulus discolor George Ledyard Stebbins 1966-5-22 6409 Yuba Near Forbestown 822 Comment
  UCD84997  Mimulus kelloggii Dena Grossenbacher; Ryan Briscoe Runquist 2009-4-1 960 Yuba 0.9 miles west of Highway 49 along the north side of Moonshine Road which starts on the north side of the Highway 49 Yuba River bridge. 451 Comment
  UC886288  Mimulus moniliformis Lewis S. Rose 1939-6-6 39233 Yuba Strawberry Valley 1219 Comment
  UC1552732  Mimulus pulsiferae Frederica Bowcutt 1985-6-8 593 Yuba near Oregon Creek (1 air mi se of Camptonville and 12 air mi n of Nevada City); Tahoe National Forest Comment
  CHSC113180  Mollugo verticillata Lowell Ahart 2013-11-30 19298 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  CAS-BOT-BC435062  Mollugo verticillata J. T. Howell; Gordon H. True 1969-6-24 5093 Yuba Vineyard Creek ca. 4 miles south of Smartville on Beale AFB Rd. 152 Comment
  CAS-BOT-BC435063  Mollugo verticillata Alice Eastwood 1913-7-3 3409 Yuba Wheatland Comment
  JEPS100350  Monardella breweri subsp. lanceolata Dean W. Taylor 2001-6-21 17813 Yuba Canyon of the North Fork Yuba River, near the confluence of Canyon Creek at Kelly Bar 609 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
  CHSC112861  Monardella sheltonii L. P. Janeway 2014-4-26 11426 Yuba Northern High Sierra Nevada. Plumas National Forest; above the end of Road 18N01A halfway between Summit Hill and New Bullards Bar Reservoir (North Yuba River); 5.6 air-km northeast of Dobbins. 850 Comment
  CHSC112958  Monardella sheltonii L. P. Janeway 2014-7-2 11438 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.6 air-km east of Challenge, along Road 19N03 1.3 road mi north of its crossing of Indian Creek, on slopes just east of the creek. 834 Comment
  CHSC69140  Monardella sheltonii Lowell Ahart 1997-8-7 7812 Yuba On the north side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  LA54221  Monardella sheltonii Carl Epling; 1938-6-16 sn Yuba near Brownsville Comment
  CHSC90460  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 miles (air) northeast of Loma Rica. 386 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
  CHSC83067  Muhlenbergia filiformis Lowell Ahart 2002-10-9 9972 Yuba On the south bank of Lost Creek, below the high water line of Sly Creek Reservoir, about 200 yards southwest of the Day Camp, Sly Creek Reservoir. 1072 Comment
  CAS-BOT-BC274930  Muhlenbergia rigens Lowell Ahart 1977-2-16 s.n. Yuba About 4 miles NE of Marysville Comment
  UCD32864  Muhlenbergia rigens Beecher Crampton 1964-10-22 7228 Yuba Yuba County, 3 miles east of Browns Valley, dry creek bed. Comment
  HSC79879  Myosotis discolor James Henrickson 1969-5-25 3453 Yuba Ca. 49 mi. NE of Yuba City, 3.7 mi. NE of Nevada-Yuba Co. line along Hwy. 49 793 Comment
  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
  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-BC260116  Nassella pulchra Gordon H. True 1963-4-17 1157 Yuba About 3 miles S of Smartville on Beale Air Force Base 213 Comment
  UCD81504  Nassella pulchra Christopher Michael Bronny 2009-4-1 16 Yuba Oat Hills' area of Sierra Nevada foothills. 140 Comment
  UCD116103  Nasturtium officinale Barbara Yungert 1974-5-9 140 Yuba F1-42 project area, Sierra Foothill Field Station. Comment
  SEINET7072977  Navarretia A. G. Vestal 1963-5-29 s.n. Yuba At 99 East and Beale Road [Presently 99 & Camp Beale Road]. UTM Zone 10, 622422mE, 4331929mN. Coordinate datum: NAD27). Comment
  CHSC107430  Navarretia filicaulis L. P. Janeway 2011-8-10 10641 Yuba Northern High Sierra Nevada. Plumas National Forest; serpentine slope on southeast side of Road 19N04 1.3 km north of Challenge-La Porte road; 2.2 air km northeast of Challenge. 1023 Comment
  CHSC44335  Navarretia filicaulis Lowell Ahart 1975-6-25 809 Yuba Near the Brownsville dump, about 1 mile west of Brownsville. 396 Comment
  JEPS94628  Navarretia filicaulis Lowell Ahart 1997-8-7 7807 Yuba n side of New York Flat Rd. about 1 mi nw La Porte Road (about 1 mi n of Brownsville) 731 Comment
  UC718468  Navarretia filicaulis Carl B. Wolf 1937-6-11 Yuba 1.6 mi nw Stanfield Hill (along a fork of South Honcut Creek, Sierra Nevada foothills); Sierra Nevada 304 Comment
  JEPS113395  Navarretia heterandra Lowell Ahart 2007-5-12 13804 Yuba About 30 feet north of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS13881  Navarretia intertexta Rimo Bacigalupi with L. R. Heckard, R. D. Sanderson, and G. Bacigalupi 1952-6-20 3756 Yuba 1.5 mi due s;along road from Brownsville to Oregon House, just n of Washington Mill Brownsville 609 Comment
  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
  RSA0062675  Navarretia intertexta Hobart Onstott 1946-5-11 s.n. Yuba Smartville Hills. Comment
  UCD37134  Navarretia intertexta Beecher Crampton 1957-6-5 4132 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  UCD48453  Navarretia intertexta Beecher Crampton 1957-6-5 4132 Yuba 2.6 miles NE of Brown's Valley P.O. Comment
  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
  UCD48464  Navarretia intertexta Barbara Yungert 1974-5-23 178 Yuba Along west side of Road 3, below F 1-13 project area near gate, Sierra Foothill Field Station, Yuba County, California. Comment
  CHSC97642  Navarretia intertexta subsp. intertexta Lowell Ahart 2007-5-12 13805 Yuba Bottom of a swale, about 100 feet northeast of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  JEPS104065  Navarretia intertexta subsp. intertexta Lowell Ahart 2003-7-6 10356 Yuba Near a meadow, e of the power line, ca 30 yd w of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  JEPS113398  Navarretia intertexta subsp. intertexta Lowell Ahart 2007-5-12 13805 Yuba Bottom of a swale, about 100 feet northeast of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  SEINET3450751  Navarretia intertexta subsp. intertexta Unknown 2003-7-6 10356 Yuba Dobbins, Dobbins, about 5 air miles north, east of the power line, about 30 yards west of Fountain Hill Road 830 Comment
  UCD162514  Navarretia intertexta subsp. intertexta Steve Matson 2007-5-19 1713 Yuba nSNF; lower Sierra foothills westslope; about 1 mile south of Highway 20, off Smartville Rd. Smiling Dog Ranch. 268 Comment
  RSA727118  Navarretia leucocephala L. Ahart 2007-5-12 13806 Yuba About 13 miles (air) northeast of Marysville. 28 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
  SEINET7042632  Navarretia leucocephala A. G. Vestal 1963-5-7 s.n. Yuba Ca. 3.5 miles north of Wheatland. Camp Far West quadrangle UTM Zone 10, 640908mE, 4323324mN. Comment
  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
  UC856882  Navarretia pubescens Lewis S. Rose 1939-6-5 39202 Yuba Smartsville 182 Comment
  CAS-BOT-BC229014  Navarretia pubescens Beecher Crampton 1957-6-5 4131 Yuba 2.6 miles northeast of Brown's Valley P.O. Comment
  JEPS113397  Navarretia tagetina Lowell Ahart 2007-5-12 13808 Yuba On dry bare distrubed dark soil, about 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  UCR194912  Nemophila heterophylla George K. Helmkamp, E. A. Helmkamp 2007-5-26 12134 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville 802 Comment
  POM249051  Nemophila heterophylla Lincoln Constance 1938-6-8 2292 Yuba Middle Fork of the Yuba River, 4 miles northwest of North San Juan, Sierra Nevada Foothills. 427 Comment
  RSA0043191  Nemophila heterophylla Carl B. Wolf 1937-5-13 8638 Yuba Sierra Nevada Foothills, 2.7 mi below Stanfield Hill on road to Browns Valley. 183 Comment
  SJSU8839  Nemophila heterophylla J. B. Willis Jr. 1969-4-19 Yuba by Marysville Rd, 0.5 mi W of Oregon House P.O. & 7.5 mi W of Dobbins Comment
  UCD120072  Nemophila heterophylla Barbara Yungert 1974-4-16 53 Yuba Koch Livestock Area, Sierra Foothill Field Station. Comment
  JEPS18181  Nemophila maculata Rimo Bacigalupi with G. T. Robbins and F. Chisaki 1956-4-19 5617 Yuba 1/2 mi n Dobbins Ranger Sta. (along road from Oregon House to Dobbins); n of Dobbins Ranger Sta. (Calif. State Dept of Forestry) 548 Comment
  UC794385  Nemophila maculata Lincoln Constance 1949-4-29 3279 Yuba 2 mi w Dobbins (Oregon House); w of Dobbins 457 Comment
  CHSC59548  Nemophila menziesii var. menziesii H. E. MacLennan 1992-4-5 13 Yuba 20 air miles se of Oroville. 472 Comment
  CDA29098  Nicotiana glauca M. Stelmok 2009-5-28 s.n. Yuba Vicinity of Marysville: at the Fremont Medical Center on 5th Street, near J street. 0 Comment
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Jan 17 2014
  UCD110187  Notholithocarpus densiflorus Kathleen Keliher 1975-4-30 77 Yuba Along Oregon Hill Road between Bullards Bar Reservoir and Challenge. Comment
  UCD110239  Notholithocarpus densiflorus Caroline B. Pratt 1977-9-27 s.n. Yuba Woodleaf, along Oroville-Wyandotte Canal. 914 Comment
  UCD110240  Notholithocarpus densiflorus Caroline B. Pratt 1977-9-27 s.n. Yuba Woodleaf, ca. 5 miles east of Challenge. At edge of trail along Oroville-Wyandotte Canal, upstream from gravity flow pipe that bypasses inhabited area. 914 Comment
  SJSU10226  Notholithocarpus densiflorus var. echinoides C. W. Sharsmith 1983-6-8 8807 Yuba near Slate Cr bridge crossing on Quincy-LaPorte Rd 1066 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
  CHSC113658  Odontostomum hartwegii L. P. Janeway 2014-5-12 11247 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. 750 Comment
  UC844106  Odontostomum hartwegii Alice Eastwood 1921-5-22 10526 Yuba Los <Vergils> Comment
  RSA21304  Odontostomum hartwegii Carl B. Wolf 1937-5-13 8649 Yuba Sierra Nevada Foothills, 1.6 miles NW of Stanfield Hill, along fork of south Honcut Creek. 305 Comment
  UCD139089  Odontostomum hartwegii Barbara Yungert 1974-5-9 139 Yuba east bank of Road 1, Porter Hill, P 1-21 project area, Sierra Foothill Field Station. Comment
  CHSC32098  Oenothera elata subsp. hirsutissima L. Ahart 1977-8-22 1556 Yuba Near irrigation ditch, ca. 4 mi e of Marysville. 40 Comment
  JEPS95891  Oenothera elata subsp. hirsutissima Lowell Ahart 1999-9-5 8194 Yuba on the disturbed area on the south side of Woodruff Lane; just west of Kimball Lane; about 5 miles (air) northeast of Marysville 24 Comment
  HSC96893  Orobanche uniflora L. Ahart 2004-4-27 10765 Yuba About 20 yrds. W of a drainage, about 40 yrds. S of the road, about 1/2 mi. (air) SE of Woodleaf 932 Comment
  SJSU8387  Orobanche uniflora J. B. Willis Jr. 1969-4-27 Yuba by old stage rd to Timbuctoo, NW of Smartville, 0.25 mi from State Hwy 20 Comment
  JEPS106275  Orobanche uniflora var. uniflora Lowell Ahart 2004-4-27 10765 Yuba About 20 yards west of a drainage, about 40 yards south of the road, about 1/2 mile (air) southeast of Woodleaf 931 Comment
  CHSC84349  Oryza sativa Lowell Ahart 2003-9-22 10614 Yuba In a rice field, Shintaffer Farms, in the rice field east of the canal and the large Shintaffer Farms rice dryer, about 300 yards south of Woodruff lake, about 3 miles (air) northeast of Marysville. 40 Comment
  UCD37869  Oxalis corniculata Beecher Crampton 1962-4-24 6285 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  CHSC78156  Oxalis laxa Lowell Ahart 2000-5-25 8401 Yuba Bank of a large wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  CHSC63239  Packera eurycephala var. eurycephala Lowell Ahart 1994-6-5 7295 Yuba On the north side of Costa Creek, on the north side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  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
  CHSC44564  Panicum acuminatum Lowell Ahart 1979-6-25 1949 Yuba North of the road, about 2 miles east of Challenge. 640 Comment
  SBBG115624  Panicum acuminatum B. Crampton 1964-10-22 7222 Yuba ca. 3 mi E of Browns Valley Comment
  CHSC63312  Panicum acuminatum var. acuminatum Lowell Ahart 1994-6-5 7308 Yuba Meadow on the east side of Forbestown Road, about 3 (air) miles east of Forbestown. 853 Comment
  CHSC78364  Panicum acuminatum var. acuminatum Lowell Ahart 2000-6-19 8492 Yuba In a meadow, about 100 yards north of New York Flat Road, about 1 1/4 miles (air) northeast of Brownsville, about 2 1/4 miles (air) west of Challenge. 731 Comment
  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
  UCD89503  Panicum capillare Beecher Crampton 1964-10-22 7226 Yuba 3 miles east of Brown's Valley. Comment
  UCD89509  Panicum capillare Floyd Forbes 1922-7-6 s.n. Yuba Marysville. Comment
  CAS-BOT-BC253827  Panicum dichotomiflorum Lowell Ahart 1977-8-31 1546 Yuba Sam Shintaffer Farm, 2 miles NE of Marysville 30 Comment
  SEINET10920908  Panicum dichotomiflorum Lowell Ahart 1999-9-5 Ahart 8198 Yuba T16N, R4E, Section not surveyed. On the disturbed area on the south side of Woodruff Lane, just west of Kimball Lane, about 5 miles (air) northeast of Marysville. 37 Comment
  CHSC78172  Parentucellia viscosa Lowell Ahart 2000-5-25 6396 Yuba On the seepy edges of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  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
  JEPS113394  Parentucellia viscosa Lowell Ahart 2007-5-14 13856 Yuba In the center of a dirt road, 60 yards north of the third power tower, about 1/2 mile north of Fruitland Road, about 13 1/2 miles (air) northeast of Marysville 29 Comment
  RSA726964  Parentucellia viscosa L. Ahart 2007-5-14 13856 Yuba About 1/2 mile north of Fruitland Road, about 13.5 miles (air) northeast of Marysville. 29 Comment
  SJSU10207  Parentucellia viscosa C. W. Sharsmith 1983-6-6 8788 Yuba near junction of Loma Rica & Fruitland Rds c. 0.5 mi S of La Porte-Quincy Rd 1219 Comment
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May 29 2009
  UCR231319  Parentucellia viscosa George K. Helmkamp, E. A. Helmkamp 2011-5-6 17193 Yuba East edge of Sacramento Valley, Camp Far West Road, 0.9 mile west of the junction at Camp Far West Reservoir 65 Comment
  UCR231329  Parentucellia viscosa George K. Helmkamp, E. A. Helmkamp 2011-5-6 17199 Yuba East edge of Sacramento Valley, Camp Far West Road, 2.3 miles northwest of the junction at Camp Far West Reservoir, 5.3 miles NE (53 deg. ) of Wheatland 55 Comment
  CLARK-A1528-7707  Paspalum dilatatum John C. Roos 1939-7-3 1519 Yuba Comment
  UCD88973  Paspalum urvillei Beecher Crampton 1966-6-14 7749 Yuba 1 mile east of Brownsville. 731 Comment
  CAS-BOT-BC202812  Paxistima myrsinites Lillian S. Mott 1966-3-6 s.n. Yuba Willow Creek near Camptonville Comment
  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
  CHSC59309  Paxistima myrsinites L. P. Janeway; Jean Witzman, Robin Fallsheer 1992-4-15 4152 Yuba Southwest side of Slapjack Creek, 1 mi southeast of Woodleaf. On slope near the creek. 899 Comment
  JEPS94627  Paxistima myrsinites Lowell Ahart 1997-8-7 7832 Yuba about 3 air mi e Challenge (on w side of dirt rd., on s side of creek); Indian Creek 762 Comment
  RSA516593  Pedicularis aurantiaca R. C. Bacigalupi, G. Thomas Robbins, Francia Chisaki 1956-4-19 5622 Yuba Between Dobbins and Bullard Bar Dam, watershed of North Fork of the Yuba River, 3.1 mi E of Dobbins (or 5.5 miles SW of Bullard Bar Dam). 784 Comment
  UCD123319  Pedicularis densiflora Kathleen Keliher 1975-4-24 68 Yuba near Marysville and Bald Mountain Roads, four miles east of Browns Valley. 91 Comment
  CHSC117657  Pedicularis racemosa Lowell Ahart 2016-9-9 21343 Yuba On the east side of road, after crossing Slate Creek on Old County Road to Scales, take first road to the right and go about 1/2 mile, near Stowman Ravine, about 3 miles (air) southwest of Poverty Hill Mine, about 8 miles (air) southwest of La Porte. 1214 Comment
  JEPS127128  Pedicularis racemosa Lowell Ahart 2016-9-9 21343 Yuba After crossing Slate Creek on Old County Road to Scales, take first road to the right and go about 1/2 mile near Stowman Ravine, about 3 miles (air) southwest of Poverty Hill mine, about 8 miles (air) southwest of La Porte. Comment
  UC1861770  Pellaea Ruth Kirkpatrick 2005-7-17 1356 Yuba ca. 0.4 mi N of bridge over middle fork of Yuba River on Hwy 49 502 Comment
  JEPS35371  Pellaea andromedifolia Mrs. Rust Yuba Pelton Comment
  RSA716503  Pellaea mucronata L. Ahart 2005-3-11 11613 Yuba About 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Managment Area, about 1/2/ mile north of Loma Rica Road, about 5 air miles northeast of Loma Rica 395 Comment
  SEINET11713853  Pellaea mucronata E. O. Pelton 1879-1 s.n. Yuba no further locality Comment
  CHSC68464  Pellaea mucronata var. californica Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7731 Yuba Along the south side of Dry Creek, north of the poor dirt road, about 1 mile east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 121 Comment
  CHSC68465  Pellaea mucronata var. mucronata Lowell Ahart; Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7733 Yuba Along the south side of Dry Creek, north of the poor dirt road, about 1 mile east of Scott Forbes Road (Long Bar Road), about 17 miles northeast of Marysville. 121 Comment
  JEPS107679  Pellaea mucronata var. mucronata Lowell Ahart 2005-3-11 11613 Yuba Large rock outcrop, south slope, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica 395 Comment
  JEPS94942  Pellaea mucronata var. mucronata Lowell Ahart, Barbara Castro, Dan Barth, Diane Mastalir 1997-4-6 7731 Yuba along s side of creek about 1 mi below Scott Forbes Road (Long Bar Road) (n of the poor dirt road, about 17 mi e of Marysville); Dry Creek 121 Comment
  SEINET211417 Image available Penstemon azureus James L. Reveal 1971-6-23 2477 Yuba Along California Highway 49, 0.5 mile north of the south Yuba River along a roadcut, about 7 miles north of Yuba City 366 Comment
  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
  UCD124233  Penstemon heterophyllus Barbara Yungert 1974-5-21 167 Yuba south of rock pile, north side of Yuba River, F-3 project area, Sierra Foothill Field Station. Comment
  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
  JEPS34539  Penstemon laetus var. leptosepalus Freed W. Hoffman 1946-6-12 917 Yuba on the road to Dobbins a few mi w Camptonville; lower Sierra Nevada, w of Camptonville on rd to Dobbins 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
  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
  RSA6487  Penstemon laetus var. leptosepalus D. D. Keck 1930-7-25 982 Yuba Challenge. 732 Comment
  RSA668003  Penstemon laetus var. leptosepalus Karl Vincent 1987-6-24 4431 Yuba Sierra Nevada, New York Flat; along N side of LaPorte Rd (CA E21) at jct. New York House (Rd.) ca 1.8 mi W of Challenge. 732 Comment
  UC1874802  Penstemon laetus var. leptosepalus Karl Vincent, Charlotte Labbe 1987-8-10 4504 Yuba Sierra Nevada, New York Flat; On S-facing roadbank below mxed conifer-hardwood forest along N side of LaPorte Rd. (CA E21) at jct. New York House (Road) ca 1.8 mi W of Challenge. 731 Comment
  SEINET11262106  Penstemon neotericus George K. Helmkamp, E. A. Helmkamp 2007-5-26 12146 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, just north of the Nevada Co line, beside Oregon Creek and Oregon Creek campground. Camptonville 7.5' Q.; 0 430 Comment
  SEINET6626627  Pentagramma triangularis A. Tiehm 1975-1 649 Yuba U.C. Sierra Foothill Field Station 274 Comment
  CAS-BOT-BC211273  Perideridia bacigalupii Lowell Ahart 1980-8-12 2527 Yuba About 2 miles south-east of Woodleaf 800 Comment
  CHSC105629  Perideridia bacigalupii L. P. Janeway 2010-8-11 10141 Yuba Northern High Sierra Nevada. Plumas National Forest, under the power lines about 150 m northwest of Oregon Hill Road 2.2 road km north of Marysville Road; about half way between Oregon Peak and Summit Hill. 832 Comment
  CHSC107426  Perideridia bacigalupii L. P. Janeway 2011-8-10 10644 Yuba Northern High Sierra Nevada. Plumas National Forest; serpentine slope on southeast side of Road 19N04 1.3 km north of Challenge-La Porte road; 2.2 air km northeast of Challenge. 1023 Comment
  JEPS118717  Perideridia bacigalupii L. P. Janeway 2011-8-15 10646 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 1.9 air km south-southwest of Oregon Peak, 0.3 km north of Marysville Road. French Corral 7.5' quad. Comment
  UCD18441  Perideridia bolanderi subsp. involucrata Eric Knapp 2000-6-16 229 B Yuba Sierra Foothill Research and Extension Center, dry grassy slope, blue oak woodland. 300 Comment
  CHSC105609  Perideridia lemmonii L. P. Janeway 2010-11-8 10140 Yuba Northern High Sierra Nevada. Plumas National Forest; under the power lines about 150 m northwest of Oregon Hill Road 2.2 road km north of Marysville Road; about half was between Oregon Peak and Summit Hill. Springtime seep. 832 Comment
  CHSC108146  Perideridia lemmonii L. P. Janeway 2011-8-15 10647 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.1 air km east of Dobbins, 1.9 air km south-southwest of Oregon Peak, 0.3 km north of Marysville Road. Southwest edge of meadow area, where seasonal drainage occurs and in sheetlfow parts of the meadow. 750 Comment
  CAS-BOT-BC418857  Persicaria hydropiperoides Lowell Ahart 1977-8-31 s.n. Yuba 2 miles north-east of Marysville 30 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
  CAS-BOT-BC419310  Persicaria punctata J. T. Howell; Gordon H. True 1969-6-24 5092 Yuba Vineyard Creek ca. 4 miles south of Smartville on Beale AFB Rd. 152 Comment
  UC572502  Petrorhagia dubia H. S. Yates 1933-5-23 3616 Yuba two mi ne Spenceville; Smartsville Quad. 304 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
  UCR231321  Petrorhagia dubia George K. Helmkamp, E. A. Helmkamp 2011-5-6 17207 Yuba East edge of Sacramento Valley, junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg. ) of Wheatland 56 Comment
  POM244285  Petrorhagia dubia C. B. Wolf 1937-5-13 8632 Yuba Sierra Nevada Foothills, 2 miles above Browns Valley on road to Stanfield Hill. 122 Comment
  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
  CHSC90348  Phacelia cicutaria var. cicutaria Lowell Ahart 2005-3-11 11618 Yuba Rock outcrop, west of a large rock outcrop, about 1/2 mile west of Marysville Road, about 1/2 mile north of Parking Area 3, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 1/2 mile north of Loma Rica Road, about 5 miles (air) northeast of Loma Rica. 393 Comment
  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
  UCD37873  Phacelia egena Beecher Crampton 1962-4-24 6293 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  SJSU11213  Phacelia egena J. B. Willis Jr. 1969-4-19 54 Yuba Hammonton Rd 3 mi W of Smartville 182 Comment
  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
  RSA10981  Phacelia humilis var. humilis Carl B. Wolf 1927-11-5 1440 Yuba Eight miles from Marysville on road to Browns Valley. Comment
  CHSC116594  Phalaris aquatica L. P. Janeway 2015-6-30 11789 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
  CHSC8261  Phalaris aquatica J. G. Moore 1969-5-4 35 Yuba Hwy. 20, 300 yds. w of 7 mi. House on s side of road growing in ditch next to rice fields. [Label incorrectly says Nevada County]. 91 Comment
  HSC10569  Phalaris aquatica T. F. Newman 1965-6-6 6512 Yuba Lone Tree Rd., 15 mi. NE of Marysville. Comment
  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
  JEPS113405  Phalaris minor Lowell Ahart 2007-5-14 13843 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  CAS-BOT-BC72716  Philadelphus lewisii Lewis S. Rose 1939-6-7 39237 Yuba N. Fork of Feather River, 3 mi. S. of Pulga 609 Comment
  UC1127348  Philadelphus lewisii N. French 1933-6-1 85 Yuba 3 1/2 mi w Bridgeport; Smartsville Quadrangle Comment
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Sep 24 2013
  UC1311876  Philadelphus lewisii B. F. Smith 1965-6-8 52 Yuba Quadrangle 50A3 Comment
  UCD118252  Phlox speciosa Kathleen Keliher 1975-5-30 118 Yuba Near New York Flat Road, just west of Forbestown. 822 Comment
  CHSC10810  Phlox speciosa subsp. occidentalis Lowell Ahart 1969-4-8 Yuba Near Dobbins. 365 Comment
  CHSC44340  Phlox speciosa subsp. occidentalis Lowell Ahart 1976-4-15 1071 Yuba Along Ponderosa Way and near the Brownsville dump, about 1 mile west of Brownsville. 457 Comment
  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
  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
  UCD112036  Phoradendron bolleanum Christopher Mallek 2008-5-5 IC3- 5 Yuba Indiana Creek. 617 Comment
  RSA12711  Phoradendron densum Carl B. Wolf, E. R. Johnson 1934-10-4 6158 Yuba N side of Indiana Creek, 1.7 miles W of Indiana Ranch. Sierra Foothills. 549 Comment
  UCD102239  Phoradendron leucarpum subsp. tomentosum Barbara Yungert 1974-5-23 182 Yuba Koch Landing, K 1-11 project area, Sierra Foothill Field Station. Comment
  CHSC113672  Phytolacca americana L. P. Janeway 2014-5-20 11258 Yuba Northern High Sierra Nevada. Plumas National Forest; 1.9 air-km southeast of Pike County Peak, 4.1 air-km southeast of Challenge; near Road 19N38. 928 Comment
  CHSC69143  Phytolacca americana Lowell Ahart 1997-8-7 7820 Yuba On the east side of a small stream, a branch of Little Oregon Creek, on the south side of the dirt road, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  CHSC45919  Pickeringia montana Lowell Ahart 1976-5-27 1131 Yuba Near the edge of Ponderosa Way, near the Brownsville Dump, west of Brownsville. 609 Comment
  CAS-BOT-BC202271  Pickeringia montana var. montana Lowell Ahart 1982-7-4 3655 Yuba Near the Brownsville Dump, Brownsville 600 Comment
  CHSC84164  Pickeringia montana var. montana Lowell Ahart 2003-6-29 10317 Yuba On the west side of Ponderosa Way, 100 yards north of the road to the dump, about 1 mile north of La Porte Road, about 1 mile (air) west of Brownsville. 684 Comment
  CHSC32100  Pilularia americana L. Ahart 1977-9-25 1591 Yuba Sam Shintaffer Farm, 2 mi ne of Marysville. 35 Comment
  UCD135105  Pinus sabiniana Barbara Yungert 1974-6-5 192 Yuba Sierra Foothill Field Station. Comment
  UCD139003  Piperia elegans Kenneth Stewart 1964-6-26 s.n. Yuba 2 miles northeast of Challenge. Comment
  CHSC116579  Piperia elongata L. P. Janeway 2015-6-15 11778 Yuba Northern Sierra Nevada. Plumas National Forest; 1.4 air-km south-southeast of Sunser Hill, just south of Oroville-Wyandotte Canal, 0.4 air-km east of New York Creek. 841 Comment
  UCR169028  Plagiobothrys David Charlton 2005-5-16 8012 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  UCD37847  Plagiobothrys Beecher Crampton 1962-4-24 6247 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  SBBG33961  Plagiobothrys bracteatus L. S. Rose 1967-6-13 67128 Yuba Camp Far West Reservoir, 7 mi NE of Wheatland 121 Comment
  SJSU5649  Plagiobothrys bracteatus L. S. Rose 1967-6-13 67128 Yuba Camp Far West Reservoir 7 mi NE of Wheatland 121 Comment
  CDA31977  Plagiobothrys fulvus L. Ahart 2007-5-12 13777 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. Comment
  CHSC97662  Plagiobothrys fulvus Lowell Ahart 2007-5-12 13777 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  RSA726544  Plagiobothrys fulvus L. Ahart 2007-5-12 13777 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  CHSC96493  Plagiobothrys glyptocarpus var. glyptocarpus Lowell Ahart 2007-4-17 13682 Yuba Along a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  JEPS113166  Plagiobothrys glyptocarpus var. glyptocarpus Lowell Ahart 2007-4-17 13682 Yuba Along a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica 292 Comment
  CHSC97631  Plagiobothrys greenei Lowell Ahart 2007-5-12 13778 Yuba Scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  RSA726546  Plagiobothrys greenei L. Ahart 2007-5-12 13778 Yuba About 13 miles (air) northeast of Marysville. 28 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
  CDA31978  Plagiobothrys stipitatus var. micranthus L. Ahart 2007-5-12 13779 Yuba Bottom of a scraped area, about 30 feet east of a culvert, about 50 yards north of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. Comment
  CDA40653  Plagiobothrys stipitatus var. micranthus L. Ahart 2002-6-3 9688 Yuba On the bottom of the pond spillway, second small man made pond, about 1/4 mile south of Long Ravine Road, about 1/8 mile east of the intersection of Camp Far West Road and Long Ravine Road there is a poor Texas gate on the south side of the road, north of Camp Far West Reservoir. Comment
  JEPS123937  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2015-4-30 20132 Yuba About 1 1/4 mile (air) southwest of the Bullards Bar Dam, about 3 miles (air) northeast of Dobbins. Comment
  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
  SEINET10781222  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2011-6-7 Ahart 17387 Yuba T16N, R6E, northeast 1/4 Section 30. Normal size plants, on good soil, 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 Bark Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. Riparian Woodland. 66 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
  CHSC97494  Plantago elongata Lowell Ahart 2007-5-12 13802 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  CHSC45085  Plantago erecta Barbara Yungert 1973-5-3 109 Yuba West of road near cattle guard and U. C. sign, west of station, Sierra Foothill Field Station. Comment
  RSA716507  Plantago erecta L. Ahart 2005-3-11 11606 Yuba 1/2 miles W of Marysville road, 1/2 mile N of Parking area 3, Dauherty Hill Wildlife area, Donovan Hill Management Area, 1/2 mile N of Loma Rica Road, 5 miles air NE of Loma Rica. 395 Comment
  UCSC008610  Plantago erecta Lowell Ahart 2007-5-12 13803 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  JEPS113485  Plantago lanceolata Lowell Ahart 2007-6-30 14231 Yuba Near a new ditch, near and east of a new road pad, about 350 yards west of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  SEINET9774346 Image available Plantago lanceolata Richard Carter 2006-7-31 Yuba 12.5 mi ENE Marysville jct. Hwy CA 20 and Hwy CA 70, by Hwy CA 20 Comment
  CHSC96976  Platanthera leucostachys Lowell Ahart 2007-8-7 14422 Yuba On the southwest part of Hampshire Creek Meadow, about 80 yards west of the dirt road, about 1 mile (air) east of Clipper Mills. 1021 Comment
  JEPS117430  Platanthera leucostachys Lowell Ahart 2010-7-27 16918 Yuba Along small streams in the meadow, on the north side of Scales Road, about 1/8 mile east of La Porte Quincy Road, about 3 miles (air) east of Sly Creek Reservoir Dam 1219 Comment
  JEPS95419  Platanthera leucostachys Lowell Ahart 1994-6-27 7390 Yuba 4 mi NE of Strawberry Valley (near the SE side of Schwartz Meadow, on the E side of La Porte Road) 1219 Comment
  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
  UCD137570  Plectritis ciliosa Kathleen Keliher 1975-4-1 51 Yuba up slope of picnic area, H 8-11 project area, Sierra Foothill Field Station. 152 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
  CHSC97484  Poa annua Lowell Ahart 2007-5-12 13826 Yuba Along the dirt road and about 20 yards northwest of the gate, about 20 yards south of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS113470  Poa annua Lowell Ahart 2007-5-12 13826 Yuba Along the dirt road and about 20 yards northwest of the gate, about 20 yards south of the power tower, about 50 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  UCD90347  Poa annua Beecher Crampton 1962-4-24 6286 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  CAS-BOT-BC255062  Poa compressa Lowell Ahart 1977-11-13 s.n. Yuba Found about 5 miles E of Strawberry Valley, near the bridge across Slate Creek, near the edge of the road 1000 Comment
  UCD90855  Poa compressa Beecher Crampton 1971-6-18 8732 Yuba Sierra Foothill Range Field Station. Ca. 6 miles east of Browns Valley. Comment
  CHSC97762  Poa palustris Lowell Ahart 2007-11-1 14538 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  JEPS115067  Poa palustris Lowell Ahart 2007-11-1 14538 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville 627 Comment
  CAS-BOT-BC255962  Poa pratensis Lowell Ahart 1979-6-25 s.n. Yuba 1 mi. S of Challenge 700 Comment
  CAS-BOT-BC255963  Poa pratensis Lowell Ahart 1979-6-3 s.n. Yuba 1 mi. S of Challenge 700 Comment
  CHSC44587  Poa pratensis Lowell Ahart 1979-6-25 1942 Yuba About 1 mile south of Challenge, in a logged over area. 640 Comment
  CHSC8576  Poa pratensis Dave Isle 1969-4-29 428 Yuba On a lawn two doors N. of the Chevron station (W. side of street) at the E.-7th St. intersection in Marysville. 57 Comment
  UCD91883  Poa pratensis Beecher Crampton 1962-4-24 6288 b Yuba 5 miles east of Browns Valley, Sierra Foothill Range Field Station. Comment
  CDA18857  Poa pratensis subsp. pratensis J. Horenstein 1999-6-9 s.n. Yuba Wetland, just north of bridge over Cock's Creek, Spenceville Wildlife Area. 0 Comment
  UCD90812  Poa secunda subsp. secunda Beecher Crampton 1962-4-24 6299 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  UCD92142  Poa secunda subsp. secunda Barbara Yungert 1974-5-6 G- 4 Yuba Sierra Foothill Field Station. South of wire gate, Kock Livestock project area. Comment
  UCD33111  Poa trivialis Beecher Crampton 1966-6-14 7756 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  UCR168804  Pogogyne ziziphoroides David Charlton 2005-5-16 8027 B Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  JEPS113624  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
  SEINET7072719  Pogogyne zizyphoroides A. G. Vestal 1963-5-7 s.n. Yuba About 3.5 miles north of Wheatland on Jasper Lane. UTM Zone 10, 636590E, 4323573mN. Coordinate datum: NAD 27. Comment
  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
  UCD112040  Polygala cornuta Christopher Mallek 2008-5-5 IC3- 1 Yuba Indiana Creek. 617 Comment
  SEINET9323173  Polygala cornuta Unknown 1981-6-22 3044 Yuba Oregon Hill Road Comment
  CAS-BOT-BC170374  Polygala cornuta var. cornuta Clarence R. Quick 1965-7-28 65 -22 Yuba Ca. 1.5 miles south of North Star on Peterson Ridge, off LaPorte Road, NE of Challenge - Sierra Nevada Comment
  CAS-BOT-BC170376  Polygala cornuta var. cornuta Lowell Ahart 1977-7-31 156 Yuba About one mile south of Challenge 700 Comment
  CHSC112960  Polygala cornuta var. cornuta L. P. Janeway 2014-7-2 11435 Yuba Northern High Sierra Nevada. Plumas National Forest; Peterson Ridge Road rounding the southeast-trending ridge between Indian Creek and the un-named creek south of that; 2.4 air-km east of Pike County Peak. 820 Comment
  UCD80654  Polygala cornuta var. cornuta CNPS SN Foothill Team 2005-5-31 SNFN 0330 c Yuba BLM, Ponderosa Landfill, near the southeast corner of the parcel (east of the defunct landfill). The plot is to the north of an old dirt road that runs to the southeast corner. 685 Comment
  CAS-BOT-BC110539  Polygonum Lowell Ahart 1977-8-31 s.n. Yuba Found 2 miles northeast of Marysville. On the Sam Shintaffer Farm. 35 Comment
  CAS-BOT-BC414362  Polygonum californicum J. T. Howell; Gordon H. True 1971-5-26 s.n. Yuba 8 mi. e. of Marysville 30 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
  RSA726959  Polygonum convolvulus L. Ahart 2007-5-14 13842 Yuba About 13 miles (air) northeast of Marysville. 36 Comment
  UCR179302  Polygonum hydropiper George K. Helmkamp, E. A. Helmkamp 2006-10-10 11528 Yuba Northern Sierra Nevada Mountains Foothills, along Calif. Hwy 49 just north of the Nevada County line at the Middle Yuba River bridge 451 Comment
  JEPS102531  Polygonum lapathifolium Lowell Ahart 2001-11-2 9394 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  CDA19038  Polygonum lapathifolium Schwall, Johnson 2000-10-16 PDR 007596 Yuba Sacramento Valley; At Greenhead Land Co., North Butte Rd., Live Oak. 0 Comment
  CHSC45953  Polygonum minimum Lowell Ahart 1980-8-12 2542 Yuba Growing on a large gravel bar that is formed from a debris dam across Slate Creek, a little below where Gold Run Creek flows into Slate Creek, above Onion Creek, about 7 miles south of La Porte. 1158 Comment
  CHSC63156  Polygonum parryi Lowell Ahart 1994-6-27 7376 Yuba In about the center of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  JEPS95799  Polygonum persicaria Lowell Ahart 1999-9-17 8242 Yuba south of Woodruff Lane; just east of Mathews Road; east of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  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
  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
  UCR191120  Polygonum punctatum George K. Helmkamp, E. A. Helmkamp 2007-8-29 12826 Yuba Northern Sierra Nevada Mountains Foothills, Mountain House Road 0.6 mile west of the Sierra Co. line; Sleighville area beside Willow Creek 1021 Comment
  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
  CAS-BOT-BC233032  Polypogon interruptus Lowell Ahart 1979-6-25 s.n. Yuba 2 miles E of Challenge 700 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
  JEPS94354  Polypogon interruptus Lowell Ahart 1997-8-7 7827 Yuba about 3 air mi se of Challenge (on w side of the dirt road, near an unnamed stream, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  SEINET3015523  Polypogon interruptus L. Ahart 1997-8-7 7827 Yuba On the W side of the dirt road, near an unnamed stream, Peterson Ridge Rd, about 3 mi (air) SE of Challenge. 762 Comment
  UCD149780  Polypogon interruptus William Anderson 1965-6-19 s.n. Yuba Between Rackerby and Challenge. Comment
  UCD51641  Polypogon interruptus Beecher Crampton 1962-4-24 6310 Yuba 5 miles E of Browns Valley. Sierra Foothill Range Field Station. Comment
  CAS-BOT-BC232533  Polypogon maritimus Beecher Crampton 1957-6-5 4114 Yuba Along State Highway 20, 10 miles E of Marysville Comment
  CAS-BOT-BC233229  Polypogon maritimus Peter Rubtzoff 1972-4-4 6724 Yuba U.C. Sierra Foothill Range Field Station, N of Smartville, Gravelly bar of Yuba River Comment
  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
  JEPS98576  Polypogon maritimus Lowell Ahart 2000-6-11 8465 Yuba 6 mi (air) S of Smartville (bottom of a deep wash, a N branch of Dry Creek, 2 mi N of int. of Waldo Road and Smartville Road, 100 yds W of Smartville Road) 146 Comment
  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
  UCD91288  Polypogon monspeliensis Beecher Crampton 1957-6-5 4111 Yuba Along State Hwy. 20, 5 miles east of Marysville. Comment
  UCR206950  Polystichum imbricans subsp. imbricans George K. Helmkamp, E. A. Helmkamp 2009-5-28 14831 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 Comment
  CAS-BOT-BC76760  Polystichum imbricans subsp. imbricans W. R. Dudley 1893-6-15 s.n. Yuba Unspecified. Comment
  CHSC97753  Polystichum munitum Lowell Ahart 2007-11-1 14530 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  CAS-BOT-BC102492  Populus fremontii Junea Kelley 1920-4-24 s.n. Yuba Los [Vergils] Verjeles Comment
  CHSC113178  Portulaca oleracea Lowell Ahart 2013-11-30 19305 Yuba On the sides of a deep wash (Willow Glen Creek), northwest of Dry Creek, below the high water line of Collins Lake, about 100 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 356 Comment
  CHSC83216  Potamogeton foliosus var. foliosus Lowell Ahart 2002-10-8 9941 Yuba In a pond, about 100 yards north of Long Ravine Road, about 300 yards southeast of the intersection of Camp Far West Road and Long Ravine Road there is a poor gate on the north side of the road, north of Camp Far West Reservoir. 121 Comment
  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
  JEPS113687  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
  CDA18836  Potamogeton pectinatus R. Breckenridge, Morse 1999-7-22 PDR 958961 F Yuba Lake Pillsbury, Upper Lake. 0 Comment
  CAS-BOT-BC454055  Potamogeton pusillus subsp. pusillus W. V. Middlekauff 1955-7-4 s.n. Yuba 3 miles n.w. of Rio Oso Post Office Comment
  CHSC82364  Potamogeton pusillus var. pusillus Lowell Ahart 2002-6-3 9687 Yuba Man made pond, about 1/4 mile south of Long Ravine Road, about 1/8 mile east of the intersection of Camp Far West Road and Long Ravine Road there is a poor Texas gate on the south side of the road, north of Camp Far West Reservoir. 106 Comment
  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
  CHSC110322  Prunella vulgaris var. lanceolata L. P. Janeway 2013-6-7 11134 Yuba Northern High Sierra Nevada. Headwaters of Cottage Creek, one of a series of meadows; 0.15 km southwest of Oregon Hill Road, 1.3 air km northeast of Oregon Peak. 815 Comment
  JEPS100264  Prunus avium Dean W. Taylor 2001-5-9 17637 Yuba canyon of the North Fork Yuba River near Kelley Bar, Plumas National Forest 609 Comment
  CAS-BOT-BC154618  Prunus subcordata Alice Eastwood 1930-4-12 17929 Yuba Near summit of Texas hill Comment
  UCD113515  Prunus subcordata Kathleen Keliher 1975-5-6 97 Yuba near Frenchtown Road, north of Dobbins. 365 Comment
  CAS-BOT-BC356991  Pseudognaphalium luteoalbum Lowell Ahart 1980-6-19 2401 Yuba 3 miles south-east of Challenge 800 Comment
  SEINET7042623  Psilocarphus brevissimus A. G. Vestal 1963-5-7 s.n. Yuba Ca. 3.5 miles north of Wheatland. Camp Far West quadrangle UTM Zone 10, 640908mE, 4323324mN. Comment
  CAS-BOT-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-BC361868  Psilocarphus oregonus Lowell Ahart 2007-5-12 13774 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CHSC97475  Psilocarphus oregonus Lowell Ahart 2007-5-12 13774 Yuba About 20 yards northeast of the second power tower, about 400 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 28 Comment
  SEINET7042647  Psilocarphus oregonus A. G. Vestal 1963-5-30 s.n. Yuba Weedy depression near Dry Creek and north oh Sicard Flat. Smartville quadrangle UTM Zone 10, 642203mE, 4345148mN. Comment
  CAS-BOT-BC361914  Psilocarphus tenellus Lowell Ahart 2007-5-12 13773 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  CHSC73409  Psilocarphus tenellus var. tenellus B. Castro; L. Gehrung 1995-8-9 601 Yuba Fish Meadow. Ca 5 air mi NE of Strawberry Valley, and ca 1.5 mi E of Slate Ck. In meadow on unnamed stream flowing S into Canyon Ck, ca 500 ft W of USFS Rd 20N35 via unnamed dirt rd. 1249 Comment
  CHSC97648  Psilocarphus tenellus var. tenellus Lowell Ahart 2007-5-12 13773 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS113477  Psilocarphus tenellus var. tenellus Lowell Ahart 2007-5-12 13773 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  CAS-BOT-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
  CHSC43544  Pteridium aquilinum var. pubescens Lowell Ahart 1979-6-3 1923 Yuba About 1 mile south of Challenge. 670 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
  CAS-BOT-BC105017  Quercus X morehus C. R. Quick 1947-10-2 47 -85 Yuba 8.3 mi NE of Brown's Valley (General Store) Comment
  UCD47014  Quercus X morehus H. H. Keifer 1953-10-11 s.n. Yuba Tree at lake near Dobbins, Yuba County, California. Comment
  UCD47040  Quercus X morehus D. H. Hartmann 1941-10-11 s.n. Yuba 15 mi. e of Marysville on U.S. #20. Comment
  UCD40459  Quercus chrysolepis Rodney Gale Myatt 1972-1 1484 -11 Yuba Lake Francis. Lower edge of small creek (dry in summer), which empties into a small, damned basin. 550 Comment
  UCD82652  Quercus chrysolepis Rodney Gale Myatt 1971-11-1 1590 -5 Yuba Oregon Creek-Middle Fork Yuba River. Yuba River where smaller Oregon Creek is confluent. 640 Comment
  UCD82653  Quercus chrysolepis Rodney Gale Myatt 1971-11-1 1590 -15 Yuba Oregon Creek-Middle Fork Yuba River. Yuba River where smaller Oregon Creek is confluent. 640 Comment
  UCD82665  Quercus chrysolepis Rodney Gale Myatt 1972-1 1484 -8 Yuba Lake Francis. Lower edge of small creek (dry in summer), which empties into a small, damned basin. 550 Comment
  UCD82666  Quercus chrysolepis Rodney Gale Myatt 1972-1 1484 -6 Yuba Lake Francis. Lower edge of small creek (dry in summer), which empties into a small, damned basin. 550 Comment
  CAS-BOT-BC86015  Quercus douglasii Carl B. Wolf 1930-10-12 1737 Yuba along Yuba River near Hammonton 152 Comment
  CAS-BOT-BC94993  Quercus douglasii R. C. Wenk 2008-7-18 977 Yuba 5 mi. from HIghway 20 going E from Marysville, along Peoria and Scott Forbes roads. 204 Comment
  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
  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
  JEPS88905  Quercus durata var. durata Lowell Ahart 1994-6-5 7306 Yuba about 3 (air) mi e Forbestown (on the n side of Forbestown road, on the n side of Costa Creek); Costa Creek, Forbestown road 853 Comment
  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
  UCD112042  Quercus wislizeni Christopher Mallek 2008-5-5 IC3- 11 Yuba Indiana Creek. 617 Comment
  UCD47512  Quercus wislizeni Barbara Yungert 1974-6-5 191 Yuba West of road near old headquarters, H 1-A project area, Sierra Foothill Field Station, Yuba County, California. Comment
  JEPS98461  Ranunculus aquatilis Lowell Ahart 2000-6-11 8466 Yuba 6 air miles S of Smartville (a N branch of Dry Creek, 100 yds W of Smartville Road, 2 mi N of the int of Waldo Road and Smartville Road) 146 Comment
  CHSC78161  Ranunculus aquatilis var. aquatilis Lowell Ahart 2000-6-11 8466 Yuba On the bottom of a deep wash, a north branch of Dry Creek, about 100 yards west of Smartville Road, about 2 miles north of the intersection of Waldo Road and Smartville Road, about 6 miles (air) south of Smartville. 146 Comment
  CAS-BOT-BC379185  Ranunculus aquatilis var. aquatilis Gordon H. True 1965-3-25 1776 Yuba Rock Creek at old McCourtney Rd. crossing, Nevada Co., and 14 mi E of Wheatland (Yuba Co.) 152 Comment
  UCD95785  Ranunculus arvensis Beecher Crampton 1957-6-5 4127 Yuba 2.6 miles northeast of Brown's Valley Post Office. Comment
  CAS-BOT-BC263233  Ranunculus bonariensis var. trisepalus Lowell Ahart 2007-5-12 13811 Yuba About 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CAS-BOT-BC523900  Ranunculus bonariensis var. trisepalus George K. Helmkamp; Amy Barnes 2013-3-28 20251 Yuba Eastern Sacramento Valley: northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  JEPS113475  Ranunculus bonariensis var. trisepalus Lowell Ahart 2007-5-12 13811 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  SD241160  Ranunculus bonariensis var. trisepalus George K. Helmkamp, E. A. Helmkamp 2011-5-6 17205 Yuba East edge of Sacramento Valley: junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47a^z) of Wheatland (Camp Far West 7.5'Q) 56 Comment
  SD248487  Ranunculus bonariensis var. trisepalus George K. Helmkamp, Elizabeth A. Helmkamp 2011-5-6 17205 Yuba East edge of Sacramento Valley: junction of Camp Far West Road and Spenceville Road, 5.4 miles NE (47a^z) of Wheatland (Camp Far Weset 7.5'Q) 56 Comment
  SEINET11261738  Ranunculus bonariensis var. trisepalus George Helmkamp, E. A. Helmkamp 2011-5-6 17205 Yuba East edge of Sacramento Valley: junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (471/4) of Wheatland (Camp Far West 7.5' Q.); 0 56 Comment
  UCR258236  Ranunculus bonariensis var. trisepalus George K. Helmkamp, Amy Barnes 2013-3-28 20251 Yuba Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road 30 Comment
  RSA647815  Ranunculus californicus E. H. Cowen 1948-3-10 s.n. Yuba near railroad tracks east side 8.5 mi S of Marysville Comment
  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
  RSA21289  Ranunculus hebecarpus Carl B. Wolf 1937-5-13 8634 Yuba Sierra Nevada Foothills, 2.7 miles below Stanfield Hill on road to Browns Valley. 183 Comment
  UCD96262  Ranunculus muricatus Barbara Yungert 1974-4-10 15 Yuba Sieera Foothill Field Station. West of station headquarter, SC-5 project area. Comment
  CHSC63161  Ranunculus occidentalis Lowell Ahart 1994-6-27 7373 Yuba In about the center of Schwartz Meadow, on the east side of La Porte Road, about 4 miles north-east of Strawberry Valley. 1219 Comment
  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
  UCD37883  Ranunculus occidentalis Beecher Crampton 1962-4-24 6307 Yuba 5 miles east of Brown's Valley, 2.5 miles north-northwest of Smartsville, University of California Foothill Field Station. Comment
  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
  RSA25942  Ranunculus occidentalis var. eisenii Carl B. Wolf 1937-5-13 10010 Yuba Sierra Nevada Foothills, 2.7 miles below Stanfield Hill on road to Browns Valley. 183 Comment
  CHSC110341  Ranunculus occidentalis var. occidentalis L. P. Janeway; Tim Hanson 2013-4-25 11090 Yuba Northern High Sierra Nevada. Plumas National Forest; headwaters area of Burnt Bridge Creek; between Oregon Hill Road and Oregon Hills; 1.8 air km north of Oregon Peak. 828 Comment
  CHSC112866  Ranunculus occidentalis var. occidentalis L. P. Janeway 2014-4-15 11228 Yuba Northern High Sierra Nevada. Plumas National Forest; east edge of Milk Ranch Meadow; on a low gap between an unnamed tributary of Little Oregon Creek to the west and an unnamed tributary of New Bullards Bar Reservoir (North Yuba River) to the east; along an eastern extension of Fountain House Road. 739 Comment
  CAS-BOT-BC427549  Reseda luteola Lowell Ahart 1986-5-14 5274 Yuba Along Scott Grant Road, about 1 mile south east of Loma Rica Road, about 4 miles east of Loma Rica 152 Comment
  UCR168221  Rhamnus californica subsp. tomentella C. B. Wolf 1927-11-6 1447 Yuba Brown's Valley to Smartville Road, along left bank of Yuba River, near bridge 152 Comment
  CHSC100721  Rhamnus crocea L. P. Janeway 2008-5-11 9360 Yuba Northern High Sierra Nevada. In the northwestern head of Slapjack Creek; along Road 19N34, 1.3 road km southeast of Challenge-La Porte Road; about 1.2 km south-southeast of Woodleaf. 940 Comment
  CAS-BOT-BC59382  Rhamnus ilicifolia Carl B. Wolf 1927-11-6 1449 Yuba Browns Valley to Smartsville Road, along left bank of Yuba River, near bridge 152 Comment
  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
  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
  JEPS94514  Rhamnus rubra Lowell Ahart 1997-8-7 7822 Yuba about 3 air mi se of Challenge (on the e side of the dirt road, near an unnamed stream, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  RSA12713  Rhamnus rubra subsp. obtusissima Carl B. Wolf 1934-10-4 6154 Yuba Texas Hill, 2 miles from Dobbins. 457 Comment
  POM243571  Rhamnus tomentella 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
  RSA601955  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1927-11-6 1445 Yuba Browns Valley to Smartsville road, along left bank of Yuba River, near Bridge 152 Comment
  RSA742591  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1930-10-12 1738 Yuba Along the Yuba River near Hammondon 152 Comment
  RSA7869  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1927-11-6 1446 Yuba Along the Yuba River near bridge on the Browns Valley to Smartsville Road. Comment
  UC592796  Rhamnus tomentella subsp. tomentella unknown 1927-11-6 1447 Yuba Brownsville Valley to Smartsville road (along left bank of Yuba River, near bridge); Yuba River 152 Comment
  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
  UCD33118  Rhododendron occidentale Beecher Crampton 1966-6-14 7740 Yuba Yuba County, 1 mile east of Brownsville on La Porte road. 731 Comment
  RSA471033  Rhododendron occidentale var. californicum Anstruther Davidson 1876-7-7 s.n. Yuba Strawberry Valley Comment
  CAS-BOT-BC199743  Rhododendron occidentale var. paludosum Lloyd W. Swift 1932-5-9 64 Yuba Plumas National Forest. S. of Challenge 762 Comment
  UC1130561  Rhus trilobata M. A. Elvin 1933-8-7 45 Yuba 2 mi n Oregon House 457 Comment
  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
  CAS-BOT-BC212665  Ribes nevadense Rimo Bacigalupi 1927-7-2 1591 Yuba Highway to Downieville, about 8 miles NE of Camptonville 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
  CHSC45976  Ribes roezlii Lowell Ahart 1972-4-28 90 Yuba Growing on a dry open mountain side, about 3 air miles north-east of Strawberry Valley, near Slate Creek, about 10 air miles south of La Porte. 914 Comment
  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
  CAS-BOT-BC74444  Rorippa curvisiliqua Gordon H. True; J. T. Howell 1967-6-13 3562 Yuba Camp Far West of Reservoir on Bear River east of Wheatland. 60 Comment
  CHSC97695  Rorippa curvisiliqua var. curvisiliqua Lowell Ahart 2007-11-1 14542 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  CHSC97747  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2007-11-8 14588 Yuba North of the waterway between the headland and the large island, on the strand of Camp Far West Reservoir, about 1/4 mile south of Rock Creek, about 1/2 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  CHSC81771  Rorippa curvisiliqua var. orientalis Lowell Ahart 2001-11-2 9397 Yuba Camp Far West Reservoir, about 1/4 mile northeast of the dam, about 9 miles (air) southeast of Wheatland. 83 Comment
  CHSC97703  Rorippa curvisiliqua var. orientalis Lowell Ahart 2007-11-8 14587 Yuba North of the waterway between the headland and the large island, on the strand of Camp Far West Reservoir, about 1/4 mile south of Rock Creek, about 1/2 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  CHSC97750  Rorippa curvisiliqua var. orientalis Lowell Ahart 2007-11-8 14587 A Yuba North of the waterway between the headland and the large island, on the strand of Camp Far West Reservoir, about 1/4 mile south of Rock Creek, about 1/2 mile north of Bear River, about 6 miles (air) northeast of Sheridan. 73 Comment
  JEPS115009  Rorippa curvisiliqua var. orientalis Lowell Ahart 2007-11-8 14587 Yuba North of the waterway between the headland and the large island, on the strand of Camp Far West Reservoir, about 1/4 mile south of Rock Creek, about 1/2 mile north of Bear River, about 6 miles (air) northeast of Sheridan 73 Comment
  JEPS115015  Rorippa curvisiliqua var. orientalis Lowell Ahart 2007-11-8 14587 Yuba North of the waterway between the headland and the large island, on the strand of Camp Far West Reservoir, about 1/4 mile south of Rock Creek, about 1/2 mile north of Bear River, about 6 miles (air) northeast of Sheridan 73 Comment
  CAS-BOT-BC7106  Rosa bridgesii Lester Rowntree 1941-5-14 s.n. Yuba On road bewteen Dobbin & Camplonville Comment
  CHSC10755  Rosa bridgesii Lowell Ahart 1968-5-15 Yuba Near Bullards Bar Dam. 914 Comment
  CHSC113651  Rosa bridgesii L. P. Janeway 2014-5-20 11256 A Yuba Northern High Sierra Nevada. Plumas National Forest; 1.9 air-km southeast of Pike County Peak, 4.1 air-km southeast of Challenge; near Road 29N38. 928 Comment
  CHSC69152  Rosa bridgesii Lowell Ahart 1997-8-7 7828 Yuba On the east side of the dirt road, near a unnamed stream, Peterson Ridge Road, about 3 miles (air) southeast of Challenge. 762 Comment
  CHSC84149  Rosa bridgesii Lowell Ahart 2003-7-2 10342 Yuba About 200 yards south of the 4-H Camp, on the west side of Oregon Hill Road, about 1/2 mile north of Marysville Road, about 2 miles (air) northeast of Dobbins. 815 Comment
  CHSC95060  Rosa bridgesii L. P. Janeway 2006-5-24 8611 Yuba Northern High Sierra Nevada Foothills. Along Ponderosa Way 1.0 road km southeast of Robinson Mill Road; 1.2 air km southeast of Robinson Mills and Forbestown Road. 768 Comment
  JEPS108555  Rosa bridgesii L. P. Janeway 2006-5-24 8611 Yuba Northern High Sierra Nevada Foothills. Along Ponderosa Way 1.0 road km southeast of Robinson Mill Road; 1.2 air km southeast of Robinson Mills & Forbestown Road 768 Comment
  JEPS123871  Rosa bridgesii Lowell Ahart 2015-4-30 20124 Yuba About 3/4 mile (air) southeast of Woodleaf. Comment
  UCD113387  Rosa bridgesii Kathleen Keliher 1975-5-30 119 Yuba Along New York Flat Road, W of Forbestown. 822 Comment
  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
  CAS-BOT-BC147669  Rosa canina John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54079 Yuba About 2 miles northeast of Dobbins on Oregon Hill Road 701 Comment
  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
  UC1776779  Rosa canina G. Douglas Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3045 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. J. T. Howell #54079 701 Comment
  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
  CDA3958  Rosa eglanteria T. C. Fuller, H. K. Wagnon 1964-5-18 11987 Yuba North of Highway 20 to Grass Valley, 0.8 mile east of Smartsville. 0 Comment
  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
  CHSC80968  Rosa gymnocarpa Lowell Ahart 2001-8-2 9051 Yuba On the south edge of the dirt road, Peterson Ridge Road, about 2 miles northeast of Oregon Hill Road, about 3 miles (air) southeast of Challenge. 701 Comment
  CAS-BOT-BC148328  Rosa pisocarpa Alice Eastwood 1921-5-22 10569 Yuba Los Vergils Comment
  JEPS104091  Rosa pisocarpa Lowell Ahart 2003-10-11 10623 Yuba On the w margins of a meadow, on the e side of a gravel road to the Rose Ranch, ca 100 yd w of the paved road to Scales, ca 1/2 mi south of the Rose Ranch, ca 5 mi (air) ne of Strawberry Valley, ca 7 mi (air) sw of La Porte. 1219 Comment
  JEPS95416  Rosa pisocarpa subsp. ahartii Lowell Ahart 1994-6-27 7383 Yuba 4 mi NE of Strawberry Valley (E of the logging road E of Schwartz Meadow, E side of La Porte Road) 1219 Comment
  CAS-BOT-BC148112  Rosa rubiginosa John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54087 Yuba 3.6 miles northeast of Strawberry Valley on La Porte-Quincy Road - Sierra Nevada 1280 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
  SBBG50611  Rosa rubiginosa P. Sawtelle 1974-5-12 32 Yuba Peoria Rd, 0.25 mi from St Hwy 20 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
  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
  UCD103089  Rotala indica John F. Williams 1974-10-8 s.n. Yuba On Tanabe Road, NE of Marysville. Comment
  JEPS124308  Rotala ramosior Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2015-11-14 20650 Yuba Below the high water line of Lake Francis, about 1 1/2 miles south of Dobbins. Comment
  UCD113780  Rubus armeniacus Barbara Yungert 1974-5-14 153 Yuba along irrigation ditch in SC-13 project area, Sierra Foothill Field Station. Comment
  UCD17692  Rubus armeniacus H. Olmo; T. S. Mallah 1953-4-8 53 90 Yuba California. Yuba County: along Highway 28 in Smartville. Comment
  RSA79048  Rubus discolor E. K. Balls, Percy C. Everett 1952-10-15 18218 Yuba 5.9 miles E and N of Marysville. Hwy 20 to Smartsville. 152 Comment
  RSA1886  Rubus ursinus Carl B. Wolf 1930-10-13 1740 Yuba On Browns Valley - Smartsville Rd. 152 Comment
  UCD17935  Rubus ursinus H. Olmo; T. S. Mallah 1953-3-24 53 27 B Yuba California. Yuba County: Highway 28 in Smartville. Growing 50 yards east of bridge on creek bank. Comment
  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
  CAS-BOT-BC421731  Rumex conglomeratus Gordon H. True; J. T. Howell 1967-6-13 3561 Yuba Camp Far West Reservoir on Bear River east of Wheatland 60 Comment
  CAS-BOT-BC421732  Rumex conglomeratus Lewis S. Rose 1940-5-28 40383 Yuba Browns Valley 60 Comment
  UCR189624  Rumex crispus George 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
  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
  JEPS113628  Rumex pulcher Lowell Ahart 2007-5-14 13868 Yuba Bottom of a swale, about 100 yards southwest of the second power tower, about 300 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 28 Comment
  CAS-BOT-BC445724  Sagittaria latifolia Lowell Ahart 1977-9-25 s.n. Yuba Sam Shintaffer Farm, 2 mi. northeast of Marysville. 35 Comment
  JEPS95800  Sagittaria latifolia var. obtusa Lowell Ahart 1999-9-17 8259 Yuba Sam Shintaffer Farm; about 1/8 mile southeast of the intersection of Ellis Avenue and Jack Slough Road; about 4 miles (air) northeast of Marysville 21 Comment
  JEPS95858  Sagittaria latifolia var. obtusa Lowell Ahart 1999-9-17 8259 Yuba Sam Shintaffer Farm; about 1/8 mile southeast of the intersection of Ellis Avenue and Jack Slough Road; about 4 miles (air) northeast of Marysville 21 Comment
  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
  JEPS95980  Sagittaria montevidensis subsp. calycina Lowell Ahart 1999-9-17 8237 Yuba south of Woodruff Lane; just east of Mathews Road; east of Sam Shintaffer's rice dryer; about 5 miles (air) northeast of Marysville 24 Comment
  CAS-BOT-BC267096  Sagittaria sanfordii W. V. Middlekauff 1955-7-4 s.n. Yuba 3 miles NW of Rio Oso Post Office Comment
  CAS-BOT-BC103040  Salix bonplandiana Alice Eastwood 1913-7-3 3413 Yuba Bear River, [Mc Courtneys] McCourtneys Bridge Comment
  CHSC108202  Salix exigua Lowell Ahart 2011-6-7 17414 Yuba Just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  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
  CAS-BOT-BC104033  Salix gooddingii John Thomas Howell; Gordon H. True 1970-5-29 5418 A Yuba Artificial lake ca. [1mi.] 1 mi. NW. of Spenceville (site) on Cox Creek 152 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
  CHSC108846  Salix lasiolepis Lowell Ahart 2012-2-28 17757 Yuba On the north side of Fruitland Road, about 13 miles northeast of Marysville. 32 Comment
  CHSC108866  Salix lasiolepis Lowell Ahart 2012-2-28 17758 Yuba On the north side of Fruitland Road, about 1/2 mile east of Ramirez Road, about 13 miles northeast of Marysville. 32 Comment
  CHSC112955  Salix lasiolepis L. P. Janeway 2014-6-26 11424 Yuba Northern High Sierra Nevada. Plumas National Forest; small ephemeral meadow on a flattish bench at head of ephemeral northeastern tributary to Little Oregon Creek; 1.9 air km south-southeast of Pike County Peak; 0.24 km northeast of Oregon Hill Road, 0.15 km south of Peterson Ridge Road. 852 Comment
  HSC104032  Salix lasiolepis L. Ahart 2012-2-28 17758 Yuba About 13 mi. NE of Mareysville; ~ 0.5 mi. E of Ramirez Rd., on the north side of Fruitland Road. 32 Comment
  SBBG126080  Salix lasiolepis L. Ahart 2012-2-28 17757 Yuba N side of Fruitland Rd, ca 0.5 mi E of Ramirez Rd, ca 13 mi NE of Marysville 32 Comment
  CAS-BOT-BC107385  Salix lasiolepis var. lasiolepis A. Eastwood 1919-9-1 s.n. Yuba Marysville Comment
  JEPS114710  Salix lasiolepis var. lasiolepis Lowell Ahart 2008-5-14 14763 Yuba On the south side of Costa Creek, about 200 yards east of Forbestown Road, about 3 miles (air) east of Forbestown 837 Comment
  UC1134923  Salix melanopsis M. A. Elvin 1933-7-1 32 Yuba Virginia Ranch Smartsville Quad. 457 Comment
  CDA20940  Salsola ryanii P. Akers 2002-9-19 RT- 10 -3 Yuba Sacramento Valley; Smartville Rd., 0.3 mi. N of Daugherty. 30 Comment
  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
  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
  UCR169027  Sambucus mexicana David Charlton 2005-5-16 8023 Yuba Sacramento Valley, Yuba Gold Field; just south of Yuba River; c. 7.5 mi ENE of Marysville; N of Beale Air Force Base; Survey area c. 2 miles by 1 mile 46 Comment
  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
  UC1128695  Sanguisorba minor subsp. muricata A. E. Wieslander and R. W. Lundh 1933-6-19 319 Yuba 2 mi s Kentucky House (L); Smartsville Quad., s of Kentucky House Comment
  UC519220  Sanguisorba minor subsp. muricata A. E. Wieslander and R. W. Lundh 1933-6-19 319 Yuba 2 mi s Kentucky House 487 Comment
  UCR196989  Sanguisorba minor subsp. muricata George K. Helmkamp, E. A. Helmkamp 2008-5-20 13489 Yuba Foothills, northern Sierra Nevada Mountains, Camptonville, at the junction of Henness Pass Road and CA-49 823 Comment
  UCD80015  Sanicula bipinnata CNPS SN Foothill Team 2005-3-15 SNFN 0056 Yuba CDFG Spenceville Wildlife Area. Plot is located on top of east-facing slope, WSW of Pittman Pond, and 2 miles W of junction between Smartville Road and Pittman Road. 174 Comment
  CHSC96483  Sanicula bipinnatifida Lowell Ahart 2007-4-17 13678 Yuba On the west side of a poor dirt road, west of a small wash, about 1/8 mile west of Marysville Road and the Parking Area, Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 5 1/2 miles (air) northeast of Loma Rica. 292 Comment
  JEPS118093  Sanicula bipinnatifida Lowell Ahart 2011-6-7 17371 Yuba Road margin, about 25 yards south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  UC566861  Sanicula bipinnatifida H. L. Mason 1927-5-11 3733 Yuba vicinity of Dobbins 457 Comment
  UCR206957  Sanicula bipinnatifida George K. Helmkamp, E. A. Helmkamp 2009-5-28 14821 Yuba Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit 805 Comment
  UCD127949  Sanicula bipinnatifida Barbara Yungert 1974-4-16 42 Yuba Campbell Valley, Sierra Foothill Field Station. 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
  UCD128077  Sanicula crassicaulis Barbara Yungert 1974-5-9 143 Yuba west of Road 6, K 1-11 project area, Sierra Foothill Field Station. 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
  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
  SD257166  Scandix pecten-veneris George K. Helmkamp 2014-8-17 22766 Yuba Sierra Nevada Foothills: Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mile due S of Smartsville (Smartsville 7.5'Q) 263 Comment
  CHSC97241  Schoenoplectus mucronatus Lowell Ahart 2007-6-22 14223 Yuba Bottom of a new ditch, near a new road pad, about 350 yards west of the power tower, about 13 miles (air) northeast of Marysville. 28 Comment
  UC1167548  Schoenoplectus mucronatus A. S. Leopold 1959-8-30 Yuba 10 mi s Marysville (Coburn Haskell Ranch); s of Marysville, Coburn Haskell Ranch Comment
  CAS-BOT-BC111657  Schoenoplectus mucronatus A. S. Leopold 1956-7-18 s.n. Yuba 3 miles NW of Rio Oso Post Office. 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
  JEPS104046  Scirpus setaceus Lowell Ahart 2003-7-6 10363 Yuba In meadow, e of the power line, ca 60 yd nw of Fountain Hill Rd, ca 5 mi (air) n of Dobbins. 836 Comment
  CAS-BOT-BC243533  Scribneria bolanderi Beecher Crampton 1957-6-5 4147 Yuba 1/2 mile west of Oregon House Post Office Comment
  UC1153789  Scribneria bolanderi Beecher Crampton 1957-6-5 4147 Yuba 1/2 mi w of Oregon House Post Office Comment
  SEINET10602614  Scribneria bolanderi Carl B. Wolf 1937-5-12 Wolfe 8629 Yuba Upper Sonoran; -Grasses. Habitat: Sun, Rocky red Clay, Open fields, Plant type: Annual. Sacramento Valley, 4 mi. NE. of Wheatland on Road to Grass Valley. 61 Comment
  UC1125706  Scrophularia californica M. A. Elvin 1933-7-6 39 Yuba 2 1/2 mi w Bridgeport; Smartsville Quadrangle Comment
  JEPS98574  Scutellaria bolanderi subsp. bolanderi Lowell Ahart 2000-6-11 8472 Yuba 8 mi (air) S of Smartville (E side of a small wash, W of Smartville Road, about 1/8 mi SW of int. with Waldo Road) 99 Comment
  CHSC107991  Scutellaria californica Matt Simenc; M. Williams 2011-7-8 23 Yuba Northern Sierra Nevada. Growing throughout rocky dry serpentine drainages and outcrops. 846 Comment
  UCR194895  Scutellaria californica George K. Helmkamp, E. A. Helmkamp 2007-5-26 12145 Yuba Northern Sierra Nevada Mountains Foothills, along CA-49, just north of the Nevada Co. line; beside Oregon Creek and Oregon Creek campground 430 Comment
  POM172693  Scutellaria californica Roxana S. Ferris 1927-11-5 6938 Yuba 7 miles west of Brown Valley. Comment
  RSA10982  Scutellaria californica Carl B. Wolf 1927-11-5 1441 Yuba Eight miles from Marysville on road to Browns Valley. Comment
  UCD125717  Scutellaria californica Barbara Yungert 1974-5-23 176 Yuba along F 1-11 fence line, near Road 3, west of Forbes Hill, Sierra Foothill Field Station. Comment
  CHSC113187  Selaginella hansenii Lowell Ahart 2013-11-30 19312 Yuba On a large rock, on north side of Dry Creek, just above the high water line of Collins Lake, about 300 yards north of Marysville Road, about 2 1/2 miles west of Oregon House. 360 Comment
  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
  RSA715713  Selaginella hansenii Lowell A. Ahart 2005-2-28 11565 Yuba Daugherty Hill Wildlife Area, Donovan Hill Management Area, about 0.5 mile N of Loma Rica Road, about 5 miles (air) NE of Loma Rica., W of a poor dirt road, about 0.5 mile W of Marysville Road, about 0.5 mile N of Parking Area 3. 404 Comment
  HSC96917  Senecio aronicoides L. Ahart 2004-4-27 10766 Yuba About 20 yrds. W of a drainage, about 40 yrds. S of the road, about 1/2 mi. (air) SE of Woodleaf 932 Comment
  JEPS106274  Senecio aronicoides Lowell Ahart 2004-4-27 10766 Yuba About 20 yards west of a drainage, about 40 yards south of the road, about 1/2 mile (air) southeast of Woodleaf 931 Comment
  UCD135866  Senecio vulgaris Barbara Yungert 1974-4-19 19 Yuba north of Yuba River, Sierra Foothill Field Station. Comment
  CHSC44847  Sericocarpus oregonensis Lowell Ahart 1976-10-1 1218 Yuba Along the edge of Marysville Road, near the east side of Bullards Bar Dam. 701 Comment
  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
  UCD135893  Sericocarpus oregonensis subsp. californicus G. K. Helmkamp; E. A. Helmkamp 2007-8-29 12831 Yuba Northern Sierra Nevada Mountains: along Hwy CA-49, 0.5 mile south of Camptonville. 817 Comment
  CAS-BOT-BC243656  Setaria pumila Roxana S. Ferris 1927-11-5 6939 Yuba 7 miles west of Brown Valley Comment
  CHSC69439  Setaria pumila Lowell Ahart 1997-8-13 7862 Yuba On the south side of Scott Forbes Road, 1/4 mile east of the intersection of Scott Forbes Road and Peoria Road, just east of Gray Drive, about 2 1/4 miles (air) east of Browns Valley. 91 Comment
  RSA726852  Setaria pumila L. Ahart 2007-6-30 14232 Yuba About 13 miles (air) northeast of Marysville. 29 Comment
  UCD92707  Setaria pumila Beecher Crampton 1964-10-22 7223 Yuba 3 miles east of Brown's Valley Dry Creek. Comment
  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
  JEPS113723  Setaria viridis Lowell Ahart 2007-5-14 13844 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  JEPS99001  Setaria viridis Lowell Ahart 2001-8-14 9109 Yuba On the north side of Marysville Road, about 50 yards east of the east end of Bullards Bar Dam. 609 Comment
  JEPS118303  Sherardia arvensis Lowell Ahart 2011-6-7 17413 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville 66 Comment
  RSA726569  Sherardia arvensis L. Ahart 2007-5-12 13814 Yuba About 13 miles (air) northeast of Marysville. 28 Comment
  UCD81498  Sherardia arvensis Christopher Michael Bronny 2009-4-1 10 Yuba Oat Hills' area of Sierra Nevada foothills. 146 Comment
  UCD121995  Sherardia arvensis Beecher Crampton 1967-5-17 7942 Yuba 5 miles east of Brown's Valley, UC Sierra Foothill Range Field Station. Comment
  UCD122001  Sherardia arvensis Kathleen Keliher 1975-4-13 62 Yuba Near Lower Cook Road, K 1-11 project area, Sierra Foothill Field Station. 243 Comment
  UCD122009  Sherardia arvensis Barbara Yungert 1974-5-1 104 Yuba Near road and SC-12 fence, SC-14 project area, Sierra Foothill Field Station. Comment
  CAS-BOT-BC213108  Sidalcea John Thomas Howell; T. C. Fuller; G. D. Barbe 1981-6-22 54082 Yuba About 2 miles northeast of dobbins on Oregon Hill Road, Sierra Nevada. 701 Comment
  CDA14565  Sidalcea asprella G. D. Barbe, J. T. Howell, T. C. Fuller 1981-6-22 3042 Yuba Oregon Hill Road, 0.1 mile north of Marysville Road, southwest of Bullards Bar Dam. 701 Comment
  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
  RSA121083  Sidalcea diploscypha H. S. Yates 1933-5-24 3643 Yuba Smartsville, 3 miles W. of Cabbage Patch 30 Comment
  CHSC109482  Sidalcea gigantea G. L. Clifton 1996-8-17 35038 Yuba At Travis Saddle along La Porte Road in a meadow. 1097 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
  SEINET7085245  Sidalcea gigantea Steven R. Hill 2010-7-17 38555 Yuba Along La Porte Road, 950 feet northeast of Travis Saddle. 13.6 kilometers north-northwest of Camptonville. Just southwest of Strawberry Valley Sierra Nevada. Type Locality. Coordinate Datum: WGS84/NAD83. 1100 Comment
  SEINET7085263  Sidalcea gigantea G. L. Clifton 1996-8-17 35038 Yuba At Travis Saddle along La Porte Road, Strawberry Valley, 39? deg. 33'37"N, 121? deg. 07'07"W. 1097 Comment
  SD130448  Sidalcea glaucescens Lowell Ahart 1980-7-25 2485 Yuba Near Slate Creek. 1200 Comment
  UC871451  Sidalcea hartwegii Lewis S. Rose 1940-5-28 40400 Yuba Oregon House 457 Comment
  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
  UCD116752  Sidalcea hartwegii Barbara Yungert 1974-5-4 113 Yuba along four wheel drive road, north of Yuba River, F-2 project area, Sierra Foothill Field Station. Comment
  UCD116753  Sidalcea hartwegii Barbara Yungert 1974-5-15 156 Yuba along Forbes Road 3, near fence of F 1-14 project area, Sierra Foothill Field Station. Comment
  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
  RSA726961  Sidalcea hirsuta L. Ahart 2007-5-14 13851 Yuba About 1/2 mile north of Fruitland Road, about 13.5 miles (air) northeast of Marysville. 29 Comment
  CDA36505  Sidalcea malviflora subsp. asprella G. D. Barbe, T. C. Fuller 1982-6-14 3672 Yuba 0.3 mile east of Challenge, 3.2 miles southwest of Woodleaf. Comment
  CDA36506  Sidalcea malviflora subsp. asprella G. D. Barbe, T. C. Fuller 1982-6-14 3672 Yuba 0.3 mile east of Challenge, 3.2 miles southwest of Woodleaf. Comment
  UC1728658  Silene bridgesii Richard Olmstead 1986-6-13 843 Yuba Junction of Oregon Creek with Middle Fork Yuba River (Oregon Creek Picnic Ground); Oregon Creek Picnic Ground 451 Comment
  UC852802  Silene californica Lewis S. Rose 1940-5-28 40381 Yuba Browns Valley 60 Comment
  RSA477854  Silene californica J. E. Cramsie 1932-5-1 s.n. Yuba Smartville. Comment
  CHSC108191  Silene gallica Lowell Ahart 2011-6-7 17389 Yuba West of a willow shrub, just south of the huge gravel bar along the Yuba River, about 150 yards west of the south end of Parks Bar Bridge (Highway 20), about 15 miles (by air) northeast of Marysville. 66 Comment
  JEPS113530  Silene gallica Lowell Ahart 2007-5-14 13881 Yuba Center of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  UCD98717  Silene gallica Barbara Yungert 1974-5-7 128 Yuba Forbes Hill; F 1-14 project area, Sierra Foothill Field Station. Comment
  UCD98992  Silene laciniata subsp. californica Kathleen Keliher 1975-4-19 64 Yuba 100 yards below Englebright Reservoir, Sierra Foothill Field Station. 152 Comment
  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
  UC1126806  Sisymbrium officinale M. A. Elvin 1933-6-7 22 Yuba 3 mi se of O'Brien's Ranch 60 Comment
  UCD115753  Sisymbrium officinale Barbara Yungert 1974-4-14 32 Yuba east of road near gate, Meathook project area, Sierra Foothill Field Station. Comment
  CHSC10798  Sisyrinchium bellum Lowell Ahart 1969-5-14 Yuba Near Dobbins. 426 Comment
  CHSC73487  Sisyrinchium bellum H. Durio, 1995-7-13 Yuba Ca 5 air mi NE of Strawberry Valley, and ca 1.5 mi E of Slate Ck. On unnamed stream flowing S into Canyon Ck, Ca 500 ft W of USFS Rd 20N35 via unnamed dirt rd. 1249 Comment
  CHSC115891  Sisyrinchium elmeri L. P. Janeway 2015-7-1 11793 Yuba Northern High Sierra Nevada. Plumas National Forest; Forbestown, 120 m southwest of Challenge Cut-Off Road and 0.6 km southeast of its junction with Forbestown Road.; springy area at headwaters of a northeastern tributary of New York Creek. 817 Comment
  CHSC43368  Solanum americanum Lowell Ahart 1977-8-31 1561 Yuba Along the edge of Jack Slough, Shintaffer Farms, about 2 miles north-east of Marysville. 27 Comment
  CDA5903  Solanum carolinense Margaret Bellue Aug 1939 Yuba Marysville. 0 Comment
  CDA5904  Solanum carolinense Margaret Bellue Aug 1939 Yuba Marysville. 0 Comment
  CDA36460  Solanum elaeagnifolium Kevin Roush 2011-8-8 PDR# 1616478 Yuba Marysville; Biz Johnson Dr. under 10th St. Bridge. 0 Comment
  UCD126981  Solanum parishii J. I. Mallory 1968-4-25 283 Yuba Stanfield Hill, 5 miles southeast of Bangor. 403 Comment
  UCD126986  Solanum parishii W. R. Powell 1968-4-25 1479 Yuba 0.5 mile southwest of Virginia Ranch Reservoir, 5 miles southeast of Bangor. 403 Comment
  UCD126996  Solanum parishii Barbara Yungert 1974-5-1 105 Yuba south of county road, along fence line, H-9 project area, Sierra Foothill Field Station. Comment
  CHSC97668  Solanum physalifolium var. nitidibaccatum Lowell Ahart 2007-5-14 13848 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS113635  Solanum sarrachoides Lowell Ahart 2007-5-14 13848 Yuba East of the dirt road, 20 yards northeast of the gate, about 20 yards south of the power tower, about 30 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  CAS-BOT-BC364917  Solidago velutina subsp. californica Lowell Ahart 1983-8-10 4275 Yuba Along the Peterson Ridge Road, about 5 miles east of Challenge 1000 Comment
  CHSC97653  Soliva sessilis Lowell Ahart 2007-5-12 13776 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville. 35 Comment
  JEPS113478  Soliva sessilis Lowell Ahart 2007-5-12 13776 Yuba Along road to the power towers, about 100 yards north of the first power tower, about 150 yards north of Fruitland Road, about 13 miles (air) northeast of Marysville 35 Comment
  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-BC365831  Soliva sessilis Gordon H. True; John Thomas Howell 1969-4-9 4781 Yuba Timbuctoo, just west of Smartville 121 Comment
  CAS-BOT-BC374416  Sonchus asper Lowell Ahart 1979-6-25 s.n. Yuba One mile south of Challenge 700 Comment
  JEPS118680  Sonchus asper subsp. asper L. P. Janeway 2011-7-5 10491 Yuba Northern High Sierra Nevada. Plumas National Forest; 2.2 air km east of Dobbins, 360 m northeast of Marysville Road. French Corral 7.5' quad. Comment
  UCD136211  Sonchus oleraceus Barbara Yungert 1974-5-6 118 Yuba south of station headquarters, Sierra Foothill Field Station. Comment
  UCD92639  Sorghum halepense A. A. Beetle 1941-6-26 2735 Yuba Near Marysville. 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
  CHSC110463  Sphenosciadium capitellatum L. P. Janeway 2013-7-24 11186 Yuba Northern High Sierra Nevada. Plumas National Forest; meadow near headwaters of a northeastern tributary to Hampshire Creek, 1.8 km north of North Yuba River and 1.0 km east-northeast of Hampshire Creek Meadow. 1102 Comment
  CHSC78351  Spiranthes porrifolia Lowell Ahart 2000-6-11 8473 Yuba West of Smartville Road, about 1/8 mile southwest of the intersection of Waldo Road and Smartville Road, about 8 miles (air) south of Smartville. 99 Comment
  JEPS98323  Spiranthes porrifolia Lowell Ahart 2000-6-11 8473 Yuba 8 air miles S of Smartville (E side of a small wash, W of Smartville Rd, about 1/8 mi SW of int of Waldo Rd and Smartville Rd) 99 Comment
  CDA20742  Sporobolus indicus T. Stevens, E. Storm 2006-5-2 PDR 1408219 Yuba Terry Stevens property, 6277 Marysville Rd., Browns Valley CA.New shoots in irrigated pasture, livestock will not eat.5 acres net, of 40 acres gross. Comment
  CHSC97868  Sporobolus indicus Terry Steven; E. Storm 2006-5-20 PDR 1408219 Yuba Terry Stevens property, 6277 Marysville Rd., Browns Valley. New shoots in irrigated pasture. 125 Comment
  UCD126029  Stachys rigida Barbara Yungert 1974-5-16 164 Yuba Along road near Dry Creek, below Porter fence line, P-2 project area, Sierra Foothill Field Station. Comment
  JEPS113685  Stellaria borealis subsp. sitchana Lowell Ahart 2007-8-7 14408 Yuba Hampshire Creek Meadow, about 20 yards east of the dirt road, about 1 mile (air) east of Clipper Mills. On the east side of a small pond, on the west side of the dirt road 1021 Comment
  JEPS94445  Stephanomeria elata Lowell Ahart 1997-8-30 7877 Yuba about 3 air mi e of Challenge (on the w side of the dirt road, in a clear cut, Peterson Ridge Road); Peterson Ridge Road 762 Comment
  CAS-BOT-BC375215  Stephanomeria elata John Thomas Howell 1951-8-21 28285 Yuba Near Camptonville 762 Comment
  CAS-BOT-BC375755  Stephanomeria virgata Lowell Ahart 1976-10-1 s.n. Yuba 3 miles south of Camptonville. Edge of road leading to Alleghany 914 Comment
  HSC97022  Stephanomeria virgata